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-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-dtb.inc69
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0001-kernel-add-support-for-gcc-5.patch97
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0008-drm-rcar-du-r8a7791-disable-interlace-mode.patch26
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0021-drm-rcar-du-r8a7794-disable-interlace-mode.patch26
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0022-fanotify-fix-notification-of-groups-with-inode-mount.patch206
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0001-Smack-Local-IPv6-port-based-controls.patch509
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0002-Smack-Improve-access-check-performance.patch1583
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0003-Smack-Add-smkfstransmute-mount-option.patch101
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0004-Smack-Fix-possible-NULL-pointer-dereference-at-smk_n.patch29
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0005-Smack-Fix-the-bug-smackcipso-can-t-set-CIPSO-correct.patch36
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0006-Security-Add-Hook-to-test-if-the-particular-xattr-is.patch170
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0007-xattr-Constify-name-member-of-struct-xattr.patch239
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0008-security-smack-fix-memleak-in-smk_write_rules_list.patch89
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0009-security-smack-add-a-hash-table-to-quicken-smk_find_.patch166
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0010-Smack-network-label-match-fix.patch110
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0011-Smack-IPv6-casting-error-fix-for-3.11.patch105
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0012-Smack-parse-multiple-rules-per-write-to-load2-up-to-.patch252
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0013-Smack-Implement-lock-security-mode.patch189
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0014-Smack-Ptrace-access-check-mode.patch34
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0015-smack-fix-allow-either-entry-be-missing-on-access-ac.patch107
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0016-Smack-Prevent-the-and-labels-from-being-used-in-SMAC.patch104
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0017-Smack-Make-the-syslog-control-configurable.patch252
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0018-Smack-change-rule-cap-check.patch33
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0019-Smack-Rationalize-mount-restrictions.patch185
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0020-Smack-File-receive-audit-correction.patch39
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0021-smack-call-WARN_ONCE-instead-of-calling-audit_log_st.patch36
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0022-Smack-Cgroup-filesystem-access.patch82
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0022-smack-fix-key-permission-verification.patch55
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0023-Minor-improvement-of-smack_sb_kern_mount.patch37
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0024-Smack-fix-the-subject-object-order-in-smack_ptrace_t.patch118
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0025-Smack-unify-all-ptrace-accesses-in-the-smack.patch185
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0026-Smack-adds-smackfs-ptrace-interface.patch233
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0027-bugfix-patch-for-SMACK.patch43
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0028-SMACK-Fix-handling-value-NULL-in-post-setxattr.patch64
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0029-Smack-Correctly-remove-SMACK64TRANSMUTE-attribute.patch64
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0030-Smack-bidirectional-UDS-connect-check.patch204
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0031-Smack-Verify-read-access-on-file-open-v3.patch62
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0032-Smack-Label-cgroup-files-for-systemd.patch80
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0033-Warning-in-scanf-string-typing.patch32
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0034-Smack-fix-behavior-of-smack_inode_listsecurity.patch45
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0035-Smack-handle-zero-length-security-labels-without-pan.patch62
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0036-Smack-remove-unneeded-NULL-termination-from-securtit.patch54
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0037-Smack-Fix-setting-label-on-successful-file-open.patch32
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0038-Smack-Bring-up-access-mode.patch805
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0039-Small-fixes-in-comments-describing-function-paramete.patch63
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0040-Fix-a-bidirectional-UDS-connect-check-typo.patch32
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0041-Make-Smack-operate-on-smack_known-struct-where-it-st.patch1461
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0042-Smack-Lock-mode-for-the-floor-and-hat-labels.patch52
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0043-Security-smack-replace-kzalloc-with-kmem_cache-for-i.patch79
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0044-security-smack-fix-out-of-bounds-access-in-smk_parse.patch95
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0045-smack-miscellaneous-small-fixes-in-function-comments.patch62
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0046-smack-fix-logic-in-smack_inode_init_security-functio.patch43
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0047-smack-introduce-a-special-case-for-tmpfs-in-smack_d_.patch56
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch40
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0049-Smack-Rework-file-hooks.patch172
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0050-Smack-secmark-support-for-netfilter.patch448
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0051-smack-Add-missing-logging-in-bidirectional-UDS-conne.patch31
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0052-smack-fix-possible-use-after-frees-in-task_security-.patch253
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0053-Smack-Repair-netfilter-dependency.patch39
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0054-Smack-secmark-connections.patch50
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/README153
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux-renesas_3.10.bb75
-rw-r--r--meta-rcar-gen2/recipes-kernel/linux/linux.inc94
63 files changed, 10271 insertions, 76 deletions
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-dtb.inc b/meta-rcar-gen2/recipes-kernel/linux/linux-dtb.inc
deleted file mode 100644
index 6b8f1a5..0000000
--- a/meta-rcar-gen2/recipes-kernel/linux/linux-dtb.inc
+++ /dev/null
@@ -1,69 +0,0 @@
-# Support for device tree generation
-FILES_kernel-devicetree = "/${KERNEL_IMAGEDEST}/devicetree*"
-
-python __anonymous () {
- d.appendVar("PACKAGES", " kernel-devicetree")
-}
-
-do_install_append() {
- if test -n "${KERNEL_DEVICETREE}"; then
- for DTB in ${KERNEL_DEVICETREE}; do
- if echo ${DTB} | grep -q '/dts/'; then
- bbwarn "${DTB} contains the full path to the the dts file, but only the dtb name should be used."
- DTB=`basename ${DTB} | sed 's,\.dts$,.dtb,g'`
- fi
- DTB_BASE_NAME=`basename ${DTB} .dtb`
- DTB_NAME=`echo ${KERNEL_IMAGE_BASE_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
- DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
- DTB_PATH="${B}/arch/${ARCH}/boot/dts/${DTB}"
- oe_runmake ${DTB}
- if [ ! -e "${DTB_PATH}" ]; then
- DTB_PATH="${B}/arch/${ARCH}/boot/${DTB}"
- fi
- install -m 0644 ${DTB_PATH} ${D}/${KERNEL_IMAGEDEST}/devicetree-${DTB_SYMLINK_NAME}.dtb
- done
- fi
-}
-
-do_deploy_append() {
- if test -n "${KERNEL_DEVICETREE}"; then
- for DTB in ${KERNEL_DEVICETREE}; do
- if echo ${DTB} | grep -q '/dts/'; then
- bbwarn "${DTB} contains the full path to the the dts file, but only the dtb name should be used."
- DTB=`basename ${DTB} | sed 's,\.dts$,.dtb,g'`
- fi
- DTB_BASE_NAME=`basename ${DTB} .dtb`
- DTB_NAME=`echo ${KERNEL_IMAGE_BASE_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
- DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
- DTB_PATH="${B}/arch/${ARCH}/boot/dts/${DTB}"
- if [ ! -e "${DTB_PATH}" ]; then
- DTB_PATH="${B}/arch/${ARCH}/boot/${DTB}"
- fi
- install -d ${DEPLOYDIR}
- install -m 0644 ${DTB_PATH} ${DEPLOYDIR}/${DTB_NAME}.dtb
- cd ${DEPLOYDIR}
- ln -sf ${DTB_NAME}.dtb ${DTB_SYMLINK_NAME}.dtb
- cd -
- done
- fi
-}
-
-pkg_postinst_kernel-devicetree () {
- cd /${KERNEL_IMAGEDEST}
- for DTB_FILE in ${KERNEL_DEVICETREE}
- do
- DTB_BASE_NAME=`basename ${DTB_FILE} | awk -F "." '{print $1}'`
- DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
- update-alternatives --install /${KERNEL_IMAGEDEST}/${DTB_BASE_NAME}.dtb ${DTB_BASE_NAME}.dtb devicetree-${DTB_SYMLINK_NAME}.dtb ${KERNEL_PRIORITY} || true
- done
-}
-
-pkg_postrm_kernel-devicetree () {
- cd /${KERNEL_IMAGEDEST}
- for DTB_FILE in ${KERNEL_DEVICETREE}
- do
- DTB_BASE_NAME=`basename ${DTB_FILE} | awk -F "." '{print $1}'`
- DTB_SYMLINK_NAME=`echo ${KERNEL_IMAGE_SYMLINK_NAME} | sed "s/${MACHINE}/${DTB_BASE_NAME}/g"`
- update-alternatives --remove ${DTB_BASE_NAME}.dtb devicetree-${DTB_SYMLINK_NAME}.dtb ${KERNEL_PRIORITY} || true
- done
-}
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0001-kernel-add-support-for-gcc-5.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0001-kernel-add-support-for-gcc-5.patch
new file mode 100644
index 0000000..3289c64
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0001-kernel-add-support-for-gcc-5.patch
@@ -0,0 +1,97 @@
+From 1a1cd1ce2ec9de673626fdedfeaccb56f36d4f71 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sasha.levin@oracle.com>
+Date: Mon, 13 Oct 2014 15:51:05 -0700
+Subject: [PATCH] kernel: add support for gcc 5
+
+We're missing include/linux/compiler-gcc5.h which is required now
+because gcc branched off to v5 in trunk.
+
+Just copy the relevant bits out of include/linux/compiler-gcc4.h,
+no new code is added as of now.
+
+This fixes a build error when using gcc 5.
+
+Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+---
+ include/linux/compiler-gcc5.h | 66 +++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 66 insertions(+)
+ create mode 100644 include/linux/compiler-gcc5.h
+
+diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
+new file mode 100644
+index 0000000..cdd1cc2
+--- /dev/null
++++ b/include/linux/compiler-gcc5.h
+@@ -0,0 +1,66 @@
++#ifndef __LINUX_COMPILER_H
++#error "Please don't include <linux/compiler-gcc5.h> directly, include <linux/compiler.h> instead."
++#endif
++
++#define __used __attribute__((__used__))
++#define __must_check __attribute__((warn_unused_result))
++#define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
++
++/* Mark functions as cold. gcc will assume any path leading to a call
++ to them will be unlikely. This means a lot of manual unlikely()s
++ are unnecessary now for any paths leading to the usual suspects
++ like BUG(), printk(), panic() etc. [but let's keep them for now for
++ older compilers]
++
++ Early snapshots of gcc 4.3 don't support this and we can't detect this
++ in the preprocessor, but we can live with this because they're unreleased.
++ Maketime probing would be overkill here.
++
++ gcc also has a __attribute__((__hot__)) to move hot functions into
++ a special section, but I don't see any sense in this right now in
++ the kernel context */
++#define __cold __attribute__((__cold__))
++
++#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
++
++#ifndef __CHECKER__
++# define __compiletime_warning(message) __attribute__((warning(message)))
++# define __compiletime_error(message) __attribute__((error(message)))
++#endif /* __CHECKER__ */
++
++/*
++ * Mark a position in code as unreachable. This can be used to
++ * suppress control flow warnings after asm blocks that transfer
++ * control elsewhere.
++ *
++ * Early snapshots of gcc 4.5 don't support this and we can't detect
++ * this in the preprocessor, but we can live with this because they're
++ * unreleased. Really, we need to have autoconf for the kernel.
++ */
++#define unreachable() __builtin_unreachable()
++
++/* Mark a function definition as prohibited from being cloned. */
++#define __noclone __attribute__((__noclone__))
++
++/*
++ * Tell the optimizer that something else uses this function or variable.
++ */
++#define __visible __attribute__((externally_visible))
++
++/*
++ * GCC 'asm goto' miscompiles certain code sequences:
++ *
++ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
++ *
++ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
++ * Fixed in GCC 4.8.2 and later versions.
++ *
++ * (asm goto is automatically volatile - the naming reflects this.)
++ */
++#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
++
++#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
++#define __HAVE_BUILTIN_BSWAP32__
++#define __HAVE_BUILTIN_BSWAP64__
++#define __HAVE_BUILTIN_BSWAP16__
++#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
+--
+1.9.1
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0008-drm-rcar-du-r8a7791-disable-interlace-mode.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0008-drm-rcar-du-r8a7791-disable-interlace-mode.patch
new file mode 100644
index 0000000..012bc94
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0008-drm-rcar-du-r8a7791-disable-interlace-mode.patch
@@ -0,0 +1,26 @@
+From 9fba622435c36541df97c60b2d7ade25039508de Mon Sep 17 00:00:00 2001
+From: Yannick GICQUEL <yannick.gicquel@iot.bzh>
+Date: Tue, 29 Sep 2015 09:02:55 +0200
+Subject: [PATCH] drm: rcar-du: r8a7791: disable interlace mode
+
+Signed-off-by: Yannick GICQUEL <yannick.gicquel@iot.bzh>
+---
+ drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+index c6b9292..5512c7a 100644
+--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
++++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+@@ -443,7 +443,7 @@ static const struct rcar_du_device_info rcar_du_r8a7791_info = {
+ .drgbs_bit = 1,
+ .max_xres = 1920,
+ .max_yres = 1080,
+- .interlace = true,
++ .interlace = false,
+ .lvds0_crtc = BIT(0),
+ .lvds1_crtc = 0,
+ .vspd_crtc = BIT(0) | BIT(1),
+--
+1.9.1
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0021-drm-rcar-du-r8a7794-disable-interlace-mode.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0021-drm-rcar-du-r8a7794-disable-interlace-mode.patch
new file mode 100644
index 0000000..751e657
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0021-drm-rcar-du-r8a7794-disable-interlace-mode.patch
@@ -0,0 +1,26 @@
+From 66ea15820ce0a4d093ec7d8a3c4c788f3e5b4bc7 Mon Sep 17 00:00:00 2001
+From: Yannick GICQUEL <yannick.gicquel@iot.bzh>
+Date: Mon, 28 Sep 2015 20:46:30 +0200
+Subject: [PATCH] drm: rcar-du: r8a7794: disable interlace mode
+
+Signed-off-by: Yannick GICQUEL <yannick.gicquel@iot.bzh>
+---
+ drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+index f7da606..c48d16d 100644
+--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
++++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+@@ -650,7 +650,7 @@ static const struct rcar_du_device_info rcar_du_r8a7794_info = {
+ .drgbs_bit = 0,
+ .max_xres = 1920,
+ .max_yres = 1080,
+- .interlace = true,
++ .interlace = false,
+ .lvds0_crtc = 0,
+ .lvds1_crtc = 0,
+ .vspd_crtc = BIT(0),
+--
+1.9.1
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0022-fanotify-fix-notification-of-groups-with-inode-mount.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0022-fanotify-fix-notification-of-groups-with-inode-mount.patch
new file mode 100644
index 0000000..06723d7
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0022-fanotify-fix-notification-of-groups-with-inode-mount.patch
@@ -0,0 +1,206 @@
+From 8edc6e1688fc8f02c8c1f53a2ec4928cb1055f4d Mon Sep 17 00:00:00 2001
+From: Jan Kara <jack@suse.cz>
+Date: Thu, 13 Nov 2014 15:19:33 -0800
+Subject: [PATCH] fanotify: fix notification of groups with inode & mount marks
+
+fsnotify() needs to merge inode and mount marks lists when notifying
+groups about events so that ignore masks from inode marks are reflected
+in mount mark notifications and groups are notified in proper order
+(according to priorities).
+
+Currently the sorting of the lists done by fsnotify_add_inode_mark() /
+fsnotify_add_vfsmount_mark() and fsnotify() differed which resulted
+ignore masks not being used in some cases.
+
+Fix the problem by always using the same comparison function when
+sorting / merging the mark lists.
+
+Thanks to Heinrich Schuchardt for improvements of my patch.
+
+Link: https://bugzilla.kernel.org/show_bug.cgi?id=87721
+Signed-off-by: Jan Kara <jack@suse.cz>
+Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
+Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+---
+ fs/notify/fsnotify.c | 36 +++++++++++++++++++++---------------
+ fs/notify/fsnotify.h | 4 ++++
+ fs/notify/inode_mark.c | 8 +++-----
+ fs/notify/mark.c | 36 ++++++++++++++++++++++++++++++++++++
+ fs/notify/vfsmount_mark.c | 8 +++-----
+ 5 files changed, 67 insertions(+), 25 deletions(-)
+
+diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
+index 9d3e9c5..89326ac 100644
+--- a/fs/notify/fsnotify.c
++++ b/fs/notify/fsnotify.c
+@@ -229,8 +229,16 @@ int fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is,
+ &fsnotify_mark_srcu);
+ }
+
++ /*
++ * We need to merge inode & vfsmount mark lists so that inode mark
++ * ignore masks are properly reflected for mount mark notifications.
++ * That's why this traversal is so complicated...
++ */
+ while (inode_node || vfsmount_node) {
+- inode_group = vfsmount_group = NULL;
++ inode_group = NULL;
++ inode_mark = NULL;
++ vfsmount_group = NULL;
++ vfsmount_mark = NULL;
+
+ if (inode_node) {
+ inode_mark = hlist_entry(srcu_dereference(inode_node, &fsnotify_mark_srcu),
+@@ -244,21 +252,19 @@ int fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is,
+ vfsmount_group = vfsmount_mark->group;
+ }
+
+- if (inode_group > vfsmount_group) {
+- /* handle inode */
+- ret = send_to_group(to_tell, inode_mark, NULL, mask, data,
+- data_is, cookie, file_name, &event);
+- /* we didn't use the vfsmount_mark */
+- vfsmount_group = NULL;
+- } else if (vfsmount_group > inode_group) {
+- ret = send_to_group(to_tell, NULL, vfsmount_mark, mask, data,
+- data_is, cookie, file_name, &event);
+- inode_group = NULL;
+- } else {
+- ret = send_to_group(to_tell, inode_mark, vfsmount_mark,
+- mask, data, data_is, cookie, file_name,
+- &event);
++ if (inode_group && vfsmount_group) {
++ int cmp = fsnotify_compare_groups(inode_group,
++ vfsmount_group);
++ if (cmp > 0) {
++ inode_group = NULL;
++ inode_mark = NULL;
++ } else if (cmp < 0) {
++ vfsmount_group = NULL;
++ vfsmount_mark = NULL;
++ }
+ }
++ ret = send_to_group(to_tell, inode_mark, vfsmount_mark, mask,
++ data, data_is, cookie, file_name, &event);
+
+ if (ret && (mask & ALL_FSNOTIFY_PERM_EVENTS))
+ goto out;
+diff --git a/fs/notify/fsnotify.h b/fs/notify/fsnotify.h
+index 9c0898c..3b68b0a 100644
+--- a/fs/notify/fsnotify.h
++++ b/fs/notify/fsnotify.h
+@@ -12,6 +12,10 @@ extern void fsnotify_flush_notify(struct fsnotify_group *group);
+ /* protects reads of inode and vfsmount marks list */
+ extern struct srcu_struct fsnotify_mark_srcu;
+
++/* compare two groups for sorting of marks lists */
++extern int fsnotify_compare_groups(struct fsnotify_group *a,
++ struct fsnotify_group *b);
++
+ extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark,
+ __u32 mask);
+ /* add a mark to an inode */
+diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c
+index e849714..dfbf544 100644
+--- a/fs/notify/inode_mark.c
++++ b/fs/notify/inode_mark.c
+@@ -194,6 +194,7 @@ int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
+ {
+ struct fsnotify_mark *lmark, *last = NULL;
+ int ret = 0;
++ int cmp;
+
+ mark->flags |= FSNOTIFY_MARK_FLAG_INODE;
+
+@@ -219,11 +220,8 @@ int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
+ goto out;
+ }
+
+- if (mark->group->priority < lmark->group->priority)
+- continue;
+-
+- if ((mark->group->priority == lmark->group->priority) &&
+- (mark->group < lmark->group))
++ cmp = fsnotify_compare_groups(lmark->group, mark->group);
++ if (cmp < 0)
+ continue;
+
+ hlist_add_before_rcu(&mark->i.i_list, &lmark->i.i_list);
+diff --git a/fs/notify/mark.c b/fs/notify/mark.c
+index d90deaa..34c38fa 100644
+--- a/fs/notify/mark.c
++++ b/fs/notify/mark.c
+@@ -210,6 +210,42 @@ void fsnotify_set_mark_ignored_mask_locked(struct fsnotify_mark *mark, __u32 mas
+ }
+
+ /*
++ * Sorting function for lists of fsnotify marks.
++ *
++ * Fanotify supports different notification classes (reflected as priority of
++ * notification group). Events shall be passed to notification groups in
++ * decreasing priority order. To achieve this marks in notification lists for
++ * inodes and vfsmounts are sorted so that priorities of corresponding groups
++ * are descending.
++ *
++ * Furthermore correct handling of the ignore mask requires processing inode
++ * and vfsmount marks of each group together. Using the group address as
++ * further sort criterion provides a unique sorting order and thus we can
++ * merge inode and vfsmount lists of marks in linear time and find groups
++ * present in both lists.
++ *
++ * A return value of 1 signifies that b has priority over a.
++ * A return value of 0 signifies that the two marks have to be handled together.
++ * A return value of -1 signifies that a has priority over b.
++ */
++int fsnotify_compare_groups(struct fsnotify_group *a, struct fsnotify_group *b)
++{
++ if (a == b)
++ return 0;
++ if (!a)
++ return 1;
++ if (!b)
++ return -1;
++ if (a->priority < b->priority)
++ return 1;
++ if (a->priority > b->priority)
++ return -1;
++ if (a < b)
++ return 1;
++ return -1;
++}
++
++/*
+ * Attach an initialized mark to a given group and fs object.
+ * These marks may be used for the fsnotify backend to determine which
+ * event types should be delivered to which group.
+diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c
+index ac851e8..faefa72 100644
+--- a/fs/notify/vfsmount_mark.c
++++ b/fs/notify/vfsmount_mark.c
+@@ -153,6 +153,7 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
+ struct mount *m = real_mount(mnt);
+ struct fsnotify_mark *lmark, *last = NULL;
+ int ret = 0;
++ int cmp;
+
+ mark->flags |= FSNOTIFY_MARK_FLAG_VFSMOUNT;
+
+@@ -178,11 +179,8 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
+ goto out;
+ }
+
+- if (mark->group->priority < lmark->group->priority)
+- continue;
+-
+- if ((mark->group->priority == lmark->group->priority) &&
+- (mark->group < lmark->group))
++ cmp = fsnotify_compare_groups(lmark->group, mark->group);
++ if (cmp < 0)
+ continue;
+
+ hlist_add_before_rcu(&mark->m.m_list, &lmark->m.m_list);
+--
+1.8.3.1
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0001-Smack-Local-IPv6-port-based-controls.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0001-Smack-Local-IPv6-port-based-controls.patch
new file mode 100644
index 0000000..d41501b
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0001-Smack-Local-IPv6-port-based-controls.patch
@@ -0,0 +1,509 @@
+From 2a16c72fa63c1de2e5c591f0afe5b575cac3b237 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Wed, 22 May 2013 18:42:56 -0700
+Subject: [PATCH 01/54] Smack: Local IPv6 port based controls
+
+Smack does not provide access controls on IPv6 communications.
+This patch introduces a mechanism for maintaining Smack lables
+for local IPv6 communications. It is based on labeling local ports.
+The behavior should be compatible with any future "real" IPv6
+support as it provides no interfaces for users to manipulate
+the labeling. Remote IPv6 connections use the ambient label
+the same way that unlabeled IPv4 packets are treated.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack.h | 11 ++
+ security/smack/smack_lsm.c | 348 +++++++++++++++++++++++++++++++++++++++------
+ 2 files changed, 319 insertions(+), 40 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index 8ad3095..bb28e09 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -94,6 +94,17 @@ struct smk_netlbladdr {
+ };
+
+ /*
++ * An entry in the table identifying ports.
++ */
++struct smk_port_label {
++ struct list_head list;
++ struct sock *smk_sock; /* socket initialized on */
++ unsigned short smk_port; /* the port number */
++ char *smk_in; /* incoming label */
++ char *smk_out; /* outgoing label */
++};
++
++/*
+ * This is the repository for labels seen so that it is
+ * not necessary to keep allocating tiny chuncks of memory
+ * and so that they can be shared.
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index d52c780..609e89d 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -27,10 +27,13 @@
+ #include <linux/ip.h>
+ #include <linux/tcp.h>
+ #include <linux/udp.h>
++#include <linux/dccp.h>
+ #include <linux/slab.h>
+ #include <linux/mutex.h>
+ #include <linux/pipe_fs_i.h>
+ #include <net/cipso_ipv4.h>
++#include <net/ip.h>
++#include <net/ipv6.h>
+ #include <linux/audit.h>
+ #include <linux/magic.h>
+ #include <linux/dcache.h>
+@@ -45,6 +48,12 @@
+ #define TRANS_TRUE "TRUE"
+ #define TRANS_TRUE_SIZE 4
+
++#define SMK_CONNECTING 0
++#define SMK_RECEIVING 1
++#define SMK_SENDING 2
++
++LIST_HEAD(smk_ipv6_port_list);
++
+ /**
+ * smk_fetch - Fetch the smack label from a file.
+ * @ip: a pointer to the inode
+@@ -1878,6 +1887,155 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
+ }
+
+ /**
++ * smk_ipv6_port_label - Smack port access table management
++ * @sock: socket
++ * @address: address
++ *
++ * Create or update the port list entry
++ */
++static void smk_ipv6_port_label(struct socket *sock, struct sockaddr *address)
++{
++ struct sock *sk = sock->sk;
++ struct sockaddr_in6 *addr6;
++ struct socket_smack *ssp = sock->sk->sk_security;
++ struct smk_port_label *spp;
++ unsigned short port = 0;
++
++ if (address == NULL) {
++ /*
++ * This operation is changing the Smack information
++ * on the bound socket. Take the changes to the port
++ * as well.
++ */
++ list_for_each_entry(spp, &smk_ipv6_port_list, list) {
++ if (sk != spp->smk_sock)
++ continue;
++ spp->smk_in = ssp->smk_in;
++ spp->smk_out = ssp->smk_out;
++ return;
++ }
++ /*
++ * A NULL address is only used for updating existing
++ * bound entries. If there isn't one, it's OK.
++ */
++ return;
++ }
++
++ addr6 = (struct sockaddr_in6 *)address;
++ port = ntohs(addr6->sin6_port);
++ /*
++ * This is a special case that is safely ignored.
++ */
++ if (port == 0)
++ return;
++
++ /*
++ * Look for an existing port list entry.
++ * This is an indication that a port is getting reused.
++ */
++ list_for_each_entry(spp, &smk_ipv6_port_list, list) {
++ if (spp->smk_port != port)
++ continue;
++ spp->smk_port = port;
++ spp->smk_sock = sk;
++ spp->smk_in = ssp->smk_in;
++ spp->smk_out = ssp->smk_out;
++ return;
++ }
++
++ /*
++ * A new port entry is required.
++ */
++ spp = kzalloc(sizeof(*spp), GFP_KERNEL);
++ if (spp == NULL)
++ return;
++
++ spp->smk_port = port;
++ spp->smk_sock = sk;
++ spp->smk_in = ssp->smk_in;
++ spp->smk_out = ssp->smk_out;
++
++ list_add(&spp->list, &smk_ipv6_port_list);
++ return;
++}
++
++/**
++ * smk_ipv6_port_check - check Smack port access
++ * @sock: socket
++ * @address: address
++ *
++ * Create or update the port list entry
++ */
++static int smk_ipv6_port_check(struct sock *sk, struct sockaddr *address,
++ int act)
++{
++ __be16 *bep;
++ __be32 *be32p;
++ struct sockaddr_in6 *addr6;
++ struct smk_port_label *spp;
++ struct socket_smack *ssp = sk->sk_security;
++ unsigned short port = 0;
++ char *subject;
++ char *object;
++ struct smk_audit_info ad;
++#ifdef CONFIG_AUDIT
++ struct lsm_network_audit net;
++#endif
++
++ if (act == SMK_RECEIVING) {
++ subject = smack_net_ambient;
++ object = ssp->smk_in;
++ } else {
++ subject = ssp->smk_out;
++ object = smack_net_ambient;
++ }
++
++ /*
++ * Get the IP address and port from the address.
++ */
++ addr6 = (struct sockaddr_in6 *)address;
++ port = ntohs(addr6->sin6_port);
++ bep = (__be16 *)(&addr6->sin6_addr);
++ be32p = (__be32 *)(&addr6->sin6_addr);
++
++ /*
++ * It's remote, so port lookup does no good.
++ */
++ if (be32p[0] || be32p[1] || be32p[2] || bep[6] || ntohs(bep[7]) != 1)
++ goto auditout;
++
++ /*
++ * It's local so the send check has to have passed.
++ */
++ if (act == SMK_RECEIVING) {
++ subject = smack_known_web.smk_known;
++ goto auditout;
++ }
++
++ list_for_each_entry(spp, &smk_ipv6_port_list, list) {
++ if (spp->smk_port != port)
++ continue;
++ object = spp->smk_in;
++ if (act == SMK_CONNECTING)
++ ssp->smk_packet = spp->smk_out;
++ break;
++ }
++
++auditout:
++
++#ifdef CONFIG_AUDIT
++ smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
++ ad.a.u.net->family = sk->sk_family;
++ ad.a.u.net->dport = port;
++ if (act == SMK_RECEIVING)
++ ad.a.u.net->v6info.saddr = addr6->sin6_addr;
++ else
++ ad.a.u.net->v6info.daddr = addr6->sin6_addr;
++#endif
++ return smk_access(subject, object, MAY_WRITE, &ad);
++}
++
++/**
+ * smack_inode_setsecurity - set smack xattrs
+ * @inode: the object
+ * @name: attribute name
+@@ -1926,7 +2084,7 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ ssp->smk_in = sp;
+ else if (strcmp(name, XATTR_SMACK_IPOUT) == 0) {
+ ssp->smk_out = sp;
+- if (sock->sk->sk_family != PF_UNIX) {
++ if (sock->sk->sk_family == PF_INET) {
+ rc = smack_netlabel(sock->sk, SMACK_CIPSO_SOCKET);
+ if (rc != 0)
+ printk(KERN_WARNING
+@@ -1936,6 +2094,9 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ } else
+ return -EOPNOTSUPP;
+
++ if (sock->sk->sk_family == PF_INET6)
++ smk_ipv6_port_label(sock, NULL);
++
+ return 0;
+ }
+
+@@ -1963,6 +2124,25 @@ static int smack_socket_post_create(struct socket *sock, int family,
+ }
+
+ /**
++ * smack_socket_bind - record port binding information.
++ * @sock: the socket
++ * @address: the port address
++ * @addrlen: size of the address
++ *
++ * Records the label bound to a port.
++ *
++ * Returns 0
++ */
++static int smack_socket_bind(struct socket *sock, struct sockaddr *address,
++ int addrlen)
++{
++ if (sock->sk != NULL && sock->sk->sk_family == PF_INET6)
++ smk_ipv6_port_label(sock, address);
++
++ return 0;
++}
++
++/**
+ * smack_socket_connect - connect access check
+ * @sock: the socket
+ * @sap: the other end
+@@ -1975,12 +2155,24 @@ static int smack_socket_post_create(struct socket *sock, int family,
+ static int smack_socket_connect(struct socket *sock, struct sockaddr *sap,
+ int addrlen)
+ {
+- if (sock->sk == NULL || sock->sk->sk_family != PF_INET)
++ int rc = 0;
++
++ if (sock->sk == NULL)
+ return 0;
+- if (addrlen < sizeof(struct sockaddr_in))
+- return -EINVAL;
+
+- return smack_netlabel_send(sock->sk, (struct sockaddr_in *)sap);
++ switch (sock->sk->sk_family) {
++ case PF_INET:
++ if (addrlen < sizeof(struct sockaddr_in))
++ return -EINVAL;
++ rc = smack_netlabel_send(sock->sk, (struct sockaddr_in *)sap);
++ break;
++ case PF_INET6:
++ if (addrlen < sizeof(struct sockaddr_in6))
++ return -EINVAL;
++ rc = smk_ipv6_port_check(sock->sk, sap, SMK_CONNECTING);
++ break;
++ }
++ return rc;
+ }
+
+ /**
+@@ -2792,22 +2984,32 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
+ * @msg: the message
+ * @size: the size of the message
+ *
+- * Return 0 if the current subject can write to the destination
+- * host. This is only a question if the destination is a single
+- * label host.
++ * Return 0 if the current subject can write to the destination host.
++ * For IPv4 this is only a question if the destination is a single label host.
++ * For IPv6 this is a check against the label of the port.
+ */
+ static int smack_socket_sendmsg(struct socket *sock, struct msghdr *msg,
+ int size)
+ {
+ struct sockaddr_in *sip = (struct sockaddr_in *) msg->msg_name;
++ struct sockaddr *sap = (struct sockaddr *) msg->msg_name;
++ int rc = 0;
+
+ /*
+ * Perfectly reasonable for this to be NULL
+ */
+- if (sip == NULL || sip->sin_family != AF_INET)
++ if (sip == NULL)
+ return 0;
+
+- return smack_netlabel_send(sock->sk, sip);
++ switch (sip->sin_family) {
++ case AF_INET:
++ rc = smack_netlabel_send(sock->sk, sip);
++ break;
++ case AF_INET6:
++ rc = smk_ipv6_port_check(sock->sk, sap, SMK_SENDING);
++ break;
++ }
++ return rc;
+ }
+
+ /**
+@@ -2878,6 +3080,54 @@ static char *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ return smack_net_ambient;
+ }
+
++static int smk_skb_to_addr_ipv6(struct sk_buff *skb, struct sockaddr *sap)
++{
++ struct sockaddr_in6 *sip = (struct sockaddr_in6 *)sap;
++ u8 nexthdr;
++ int offset;
++ int proto = -EINVAL;
++ struct ipv6hdr _ipv6h;
++ struct ipv6hdr *ip6;
++ __be16 frag_off;
++ struct tcphdr _tcph, *th;
++ struct udphdr _udph, *uh;
++ struct dccp_hdr _dccph, *dh;
++
++ sip->sin6_port = 0;
++
++ offset = skb_network_offset(skb);
++ ip6 = skb_header_pointer(skb, offset, sizeof(_ipv6h), &_ipv6h);
++ if (ip6 == NULL)
++ return -EINVAL;
++ sip->sin6_addr = ip6->saddr;
++
++ nexthdr = ip6->nexthdr;
++ offset += sizeof(_ipv6h);
++ offset = ipv6_skip_exthdr(skb, offset, &nexthdr, &frag_off);
++ if (offset < 0)
++ return -EINVAL;
++
++ proto = nexthdr;
++ switch (proto) {
++ case IPPROTO_TCP:
++ th = skb_header_pointer(skb, offset, sizeof(_tcph), &_tcph);
++ if (th != NULL)
++ sip->sin6_port = th->source;
++ break;
++ case IPPROTO_UDP:
++ uh = skb_header_pointer(skb, offset, sizeof(_udph), &_udph);
++ if (uh != NULL)
++ sip->sin6_port = uh->source;
++ break;
++ case IPPROTO_DCCP:
++ dh = skb_header_pointer(skb, offset, sizeof(_dccph), &_dccph);
++ if (dh != NULL)
++ sip->sin6_port = dh->dccph_sport;
++ break;
++ }
++ return proto;
++}
++
+ /**
+ * smack_socket_sock_rcv_skb - Smack packet delivery access check
+ * @sk: socket
+@@ -2889,43 +3139,52 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ {
+ struct netlbl_lsm_secattr secattr;
+ struct socket_smack *ssp = sk->sk_security;
++ struct sockaddr sadd;
+ char *csp;
+- int rc;
++ int rc = 0;
+ struct smk_audit_info ad;
+ #ifdef CONFIG_AUDIT
+ struct lsm_network_audit net;
+ #endif
+- if (sk->sk_family != PF_INET && sk->sk_family != PF_INET6)
+- return 0;
+-
+- /*
+- * Translate what netlabel gave us.
+- */
+- netlbl_secattr_init(&secattr);
++ switch (sk->sk_family) {
++ case PF_INET:
++ /*
++ * Translate what netlabel gave us.
++ */
++ netlbl_secattr_init(&secattr);
+
+- rc = netlbl_skbuff_getattr(skb, sk->sk_family, &secattr);
+- if (rc == 0)
+- csp = smack_from_secattr(&secattr, ssp);
+- else
+- csp = smack_net_ambient;
++ rc = netlbl_skbuff_getattr(skb, sk->sk_family, &secattr);
++ if (rc == 0)
++ csp = smack_from_secattr(&secattr, ssp);
++ else
++ csp = smack_net_ambient;
+
+- netlbl_secattr_destroy(&secattr);
++ netlbl_secattr_destroy(&secattr);
+
+ #ifdef CONFIG_AUDIT
+- smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
+- ad.a.u.net->family = sk->sk_family;
+- ad.a.u.net->netif = skb->skb_iif;
+- ipv4_skb_to_auditdata(skb, &ad.a, NULL);
++ smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
++ ad.a.u.net->family = sk->sk_family;
++ ad.a.u.net->netif = skb->skb_iif;
++ ipv4_skb_to_auditdata(skb, &ad.a, NULL);
+ #endif
+- /*
+- * Receiving a packet requires that the other end
+- * be able to write here. Read access is not required.
+- * This is the simplist possible security model
+- * for networking.
+- */
+- rc = smk_access(csp, ssp->smk_in, MAY_WRITE, &ad);
+- if (rc != 0)
+- netlbl_skbuff_err(skb, rc, 0);
++ /*
++ * Receiving a packet requires that the other end
++ * be able to write here. Read access is not required.
++ * This is the simplist possible security model
++ * for networking.
++ */
++ rc = smk_access(csp, ssp->smk_in, MAY_WRITE, &ad);
++ if (rc != 0)
++ netlbl_skbuff_err(skb, rc, 0);
++ break;
++ case PF_INET6:
++ rc = smk_skb_to_addr_ipv6(skb, &sadd);
++ if (rc == IPPROTO_UDP || rc == IPPROTO_TCP)
++ rc = smk_ipv6_port_check(sk, &sadd, SMK_RECEIVING);
++ else
++ rc = 0;
++ break;
++ }
+ return rc;
+ }
+
+@@ -3063,9 +3322,17 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ struct lsm_network_audit net;
+ #endif
+
+- /* handle mapped IPv4 packets arriving via IPv6 sockets */
+- if (family == PF_INET6 && skb->protocol == htons(ETH_P_IP))
+- family = PF_INET;
++ if (family == PF_INET6) {
++ /*
++ * Handle mapped IPv4 packets arriving
++ * via IPv6 sockets. Don't set up netlabel
++ * processing on IPv6.
++ */
++ if (skb->protocol == htons(ETH_P_IP))
++ family = PF_INET;
++ else
++ return 0;
++ }
+
+ netlbl_secattr_init(&secattr);
+ rc = netlbl_skbuff_getattr(skb, family, &secattr);
+@@ -3498,6 +3765,7 @@ struct security_operations smack_ops = {
+ .unix_may_send = smack_unix_may_send,
+
+ .socket_post_create = smack_socket_post_create,
++ .socket_bind = smack_socket_bind,
+ .socket_connect = smack_socket_connect,
+ .socket_sendmsg = smack_socket_sendmsg,
+ .socket_sock_rcv_skb = smack_socket_sock_rcv_skb,
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0002-Smack-Improve-access-check-performance.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0002-Smack-Improve-access-check-performance.patch
new file mode 100644
index 0000000..30b1c82
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0002-Smack-Improve-access-check-performance.patch
@@ -0,0 +1,1583 @@
+From deb377a5301bde51f693879af02821db2016107e Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Wed, 22 May 2013 18:43:03 -0700
+Subject: [PATCH 02/54] Smack: Improve access check performance
+
+Each Smack label that the kernel has seen is added to a
+list of labels. The list of access rules for a given subject
+label hangs off of the label list entry for the label.
+This patch changes the structures that contain subject
+labels to point at the label list entry rather that the
+label itself. Doing so removes a label list lookup in
+smk_access() that was accounting for the largest single
+chunk of Smack overhead.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack.h | 108 +++++++-------
+ security/smack/smack_access.c | 41 +++---
+ security/smack/smack_lsm.c | 331 +++++++++++++++++++++++-------------------
+ security/smack/smackfs.c | 51 +++----
+ 4 files changed, 282 insertions(+), 249 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index bb28e09..159f25b 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -29,6 +29,38 @@
+ #define SMK_LONGLABEL 256
+
+ /*
++ * This is the repository for labels seen so that it is
++ * not necessary to keep allocating tiny chuncks of memory
++ * and so that they can be shared.
++ *
++ * Labels are never modified in place. Anytime a label
++ * is imported (e.g. xattrset on a file) the list is checked
++ * for it and it is added if it doesn't exist. The address
++ * is passed out in either case. Entries are added, but
++ * never deleted.
++ *
++ * Since labels are hanging around anyway it doesn't
++ * hurt to maintain a secid for those awkward situations
++ * where kernel components that ought to use LSM independent
++ * interfaces don't. The secid should go away when all of
++ * these components have been repaired.
++ *
++ * The cipso value associated with the label gets stored here, too.
++ *
++ * Keep the access rules for this subject label here so that
++ * the entire set of rules does not need to be examined every
++ * time.
++ */
++struct smack_known {
++ struct list_head list;
++ char *smk_known;
++ u32 smk_secid;
++ struct netlbl_lsm_secattr smk_netlabel; /* on wire labels */
++ struct list_head smk_rules; /* access rules */
++ struct mutex smk_rules_lock; /* lock for rules */
++};
++
++/*
+ * Maximum number of bytes for the levels in a CIPSO IP option.
+ * Why 23? CIPSO is constrained to 30, so a 32 byte buffer is
+ * bigger than can be used, and 24 is the next lower multiple
+@@ -46,25 +78,25 @@ struct superblock_smack {
+ };
+
+ struct socket_smack {
+- char *smk_out; /* outbound label */
+- char *smk_in; /* inbound label */
+- char *smk_packet; /* TCP peer label */
++ struct smack_known *smk_out; /* outbound label */
++ char *smk_in; /* inbound label */
++ char *smk_packet; /* TCP peer label */
+ };
+
+ /*
+ * Inode smack data
+ */
+ struct inode_smack {
+- char *smk_inode; /* label of the fso */
+- char *smk_task; /* label of the task */
+- char *smk_mmap; /* label of the mmap domain */
+- struct mutex smk_lock; /* initialization lock */
+- int smk_flags; /* smack inode flags */
++ char *smk_inode; /* label of the fso */
++ struct smack_known *smk_task; /* label of the task */
++ struct smack_known *smk_mmap; /* label of the mmap domain */
++ struct mutex smk_lock; /* initialization lock */
++ int smk_flags; /* smack inode flags */
+ };
+
+ struct task_smack {
+- char *smk_task; /* label for access control */
+- char *smk_forked; /* label when forked */
++ struct smack_known *smk_task; /* label for access control */
++ struct smack_known *smk_forked; /* label when forked */
+ struct list_head smk_rules; /* per task access rules */
+ struct mutex smk_rules_lock; /* lock for the rules */
+ };
+@@ -78,7 +110,7 @@ struct task_smack {
+ */
+ struct smack_rule {
+ struct list_head list;
+- char *smk_subject;
++ struct smack_known *smk_subject;
+ char *smk_object;
+ int smk_access;
+ };
+@@ -101,39 +133,7 @@ struct smk_port_label {
+ struct sock *smk_sock; /* socket initialized on */
+ unsigned short smk_port; /* the port number */
+ char *smk_in; /* incoming label */
+- char *smk_out; /* outgoing label */
+-};
+-
+-/*
+- * This is the repository for labels seen so that it is
+- * not necessary to keep allocating tiny chuncks of memory
+- * and so that they can be shared.
+- *
+- * Labels are never modified in place. Anytime a label
+- * is imported (e.g. xattrset on a file) the list is checked
+- * for it and it is added if it doesn't exist. The address
+- * is passed out in either case. Entries are added, but
+- * never deleted.
+- *
+- * Since labels are hanging around anyway it doesn't
+- * hurt to maintain a secid for those awkward situations
+- * where kernel components that ought to use LSM independent
+- * interfaces don't. The secid should go away when all of
+- * these components have been repaired.
+- *
+- * The cipso value associated with the label gets stored here, too.
+- *
+- * Keep the access rules for this subject label here so that
+- * the entire set of rules does not need to be examined every
+- * time.
+- */
+-struct smack_known {
+- struct list_head list;
+- char *smk_known;
+- u32 smk_secid;
+- struct netlbl_lsm_secattr smk_netlabel; /* on wire labels */
+- struct list_head smk_rules; /* access rules */
+- struct mutex smk_rules_lock; /* lock for rules */
++ struct smack_known *smk_out; /* outgoing label */
+ };
+
+ /*
+@@ -214,9 +214,9 @@ struct inode_smack *new_inode_smack(char *);
+ * These functions are in smack_access.c
+ */
+ int smk_access_entry(char *, char *, struct list_head *);
+-int smk_access(char *, char *, int, struct smk_audit_info *);
++int smk_access(struct smack_known *, char *, int, struct smk_audit_info *);
+ int smk_curacc(char *, u32, struct smk_audit_info *);
+-char *smack_from_secid(const u32);
++struct smack_known *smack_from_secid(const u32);
+ char *smk_parse_smack(const char *string, int len);
+ int smk_netlbl_mls(int, char *, struct netlbl_lsm_secattr *, int);
+ char *smk_import(const char *, int);
+@@ -229,7 +229,7 @@ u32 smack_to_secid(const char *);
+ */
+ extern int smack_cipso_direct;
+ extern int smack_cipso_mapped;
+-extern char *smack_net_ambient;
++extern struct smack_known *smack_net_ambient;
+ extern char *smack_onlycap;
+ extern const char *smack_cipso_option;
+
+@@ -265,17 +265,17 @@ static inline char *smk_of_inode(const struct inode *isp)
+ }
+
+ /*
+- * Present a pointer to the smack label in an task blob.
++ * Present a pointer to the smack label entry in an task blob.
+ */
+-static inline char *smk_of_task(const struct task_smack *tsp)
++static inline struct smack_known *smk_of_task(const struct task_smack *tsp)
+ {
+ return tsp->smk_task;
+ }
+
+ /*
+- * Present a pointer to the forked smack label in an task blob.
++ * Present a pointer to the forked smack label entry in an task blob.
+ */
+-static inline char *smk_of_forked(const struct task_smack *tsp)
++static inline struct smack_known *smk_of_forked(const struct task_smack *tsp)
+ {
+ return tsp->smk_forked;
+ }
+@@ -283,7 +283,7 @@ static inline char *smk_of_forked(const struct task_smack *tsp)
+ /*
+ * Present a pointer to the smack label in the current task blob.
+ */
+-static inline char *smk_of_current(void)
++static inline struct smack_known *smk_of_current(void)
+ {
+ return smk_of_task(current_security());
+ }
+@@ -294,9 +294,11 @@ static inline char *smk_of_current(void)
+ */
+ static inline int smack_privileged(int cap)
+ {
++ struct smack_known *skp = smk_of_current();
++
+ if (!capable(cap))
+ return 0;
+- if (smack_onlycap == NULL || smack_onlycap == smk_of_current())
++ if (smack_onlycap == NULL || smack_onlycap == skp->smk_known)
+ return 1;
+ return 0;
+ }
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index 2e397a8..53f2327 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -93,7 +93,7 @@ int smk_access_entry(char *subject_label, char *object_label,
+
+ list_for_each_entry_rcu(srp, rule_list, list) {
+ if (srp->smk_object == object_label &&
+- srp->smk_subject == subject_label) {
++ srp->smk_subject->smk_known == subject_label) {
+ may = srp->smk_access;
+ break;
+ }
+@@ -104,7 +104,7 @@ int smk_access_entry(char *subject_label, char *object_label,
+
+ /**
+ * smk_access - determine if a subject has a specific access to an object
+- * @subject_label: a pointer to the subject's Smack label
++ * @subject_known: a pointer to the subject's Smack label entry
+ * @object_label: a pointer to the object's Smack label
+ * @request: the access requested, in "MAY" format
+ * @a : a pointer to the audit data
+@@ -115,10 +115,9 @@ int smk_access_entry(char *subject_label, char *object_label,
+ *
+ * Smack labels are shared on smack_list
+ */
+-int smk_access(char *subject_label, char *object_label, int request,
+- struct smk_audit_info *a)
++int smk_access(struct smack_known *subject_known, char *object_label,
++ int request, struct smk_audit_info *a)
+ {
+- struct smack_known *skp;
+ int may = MAY_NOT;
+ int rc = 0;
+
+@@ -127,7 +126,7 @@ int smk_access(char *subject_label, char *object_label, int request,
+ *
+ * A star subject can't access any object.
+ */
+- if (subject_label == smack_known_star.smk_known) {
++ if (subject_known == &smack_known_star) {
+ rc = -EACCES;
+ goto out_audit;
+ }
+@@ -137,7 +136,7 @@ int smk_access(char *subject_label, char *object_label, int request,
+ * An internet subject can access any object.
+ */
+ if (object_label == smack_known_web.smk_known ||
+- subject_label == smack_known_web.smk_known)
++ subject_known == &smack_known_web)
+ goto out_audit;
+ /*
+ * A star object can be accessed by any subject.
+@@ -148,7 +147,7 @@ int smk_access(char *subject_label, char *object_label, int request,
+ * An object can be accessed in any way by a subject
+ * with the same label.
+ */
+- if (subject_label == object_label)
++ if (subject_known->smk_known == object_label)
+ goto out_audit;
+ /*
+ * A hat subject can read any object.
+@@ -157,7 +156,7 @@ int smk_access(char *subject_label, char *object_label, int request,
+ if ((request & MAY_ANYREAD) == request) {
+ if (object_label == smack_known_floor.smk_known)
+ goto out_audit;
+- if (subject_label == smack_known_hat.smk_known)
++ if (subject_known == &smack_known_hat)
+ goto out_audit;
+ }
+ /*
+@@ -167,9 +166,9 @@ int smk_access(char *subject_label, char *object_label, int request,
+ * good. A negative response from smk_access_entry()
+ * indicates there is no entry for this pair.
+ */
+- skp = smk_find_entry(subject_label);
+ rcu_read_lock();
+- may = smk_access_entry(subject_label, object_label, &skp->smk_rules);
++ may = smk_access_entry(subject_known->smk_known, object_label,
++ &subject_known->smk_rules);
+ rcu_read_unlock();
+
+ if (may > 0 && (request & may) == request)
+@@ -179,7 +178,8 @@ int smk_access(char *subject_label, char *object_label, int request,
+ out_audit:
+ #ifdef CONFIG_AUDIT
+ if (a)
+- smack_log(subject_label, object_label, request, rc, a);
++ smack_log(subject_known->smk_known, object_label, request,
++ rc, a);
+ #endif
+ return rc;
+ }
+@@ -198,20 +198,21 @@ out_audit:
+ int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
+ {
+ struct task_smack *tsp = current_security();
+- char *sp = smk_of_task(tsp);
++ struct smack_known *skp = smk_of_task(tsp);
+ int may;
+ int rc;
+
+ /*
+ * Check the global rule list
+ */
+- rc = smk_access(sp, obj_label, mode, NULL);
++ rc = smk_access(skp, obj_label, mode, NULL);
+ if (rc == 0) {
+ /*
+ * If there is an entry in the task's rule list
+ * it can further restrict access.
+ */
+- may = smk_access_entry(sp, obj_label, &tsp->smk_rules);
++ may = smk_access_entry(skp->smk_known, obj_label,
++ &tsp->smk_rules);
+ if (may < 0)
+ goto out_audit;
+ if ((mode & may) == mode)
+@@ -228,7 +229,7 @@ int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
+ out_audit:
+ #ifdef CONFIG_AUDIT
+ if (a)
+- smack_log(sp, obj_label, mode, rc, a);
++ smack_log(skp->smk_known, obj_label, mode, rc, a);
+ #endif
+ return rc;
+ }
+@@ -513,10 +514,10 @@ char *smk_import(const char *string, int len)
+ * smack_from_secid - find the Smack label associated with a secid
+ * @secid: an integer that might be associated with a Smack label
+ *
+- * Returns a pointer to the appropriate Smack label if there is one,
++ * Returns a pointer to the appropriate Smack label entry if there is one,
+ * otherwise a pointer to the invalid Smack label.
+ */
+-char *smack_from_secid(const u32 secid)
++struct smack_known *smack_from_secid(const u32 secid)
+ {
+ struct smack_known *skp;
+
+@@ -524,7 +525,7 @@ char *smack_from_secid(const u32 secid)
+ list_for_each_entry_rcu(skp, &smack_known_list, list) {
+ if (skp->smk_secid == secid) {
+ rcu_read_unlock();
+- return skp->smk_known;
++ return skp;
+ }
+ }
+
+@@ -533,7 +534,7 @@ char *smack_from_secid(const u32 secid)
+ * of a secid that is not on the list.
+ */
+ rcu_read_unlock();
+- return smack_known_invalid.smk_known;
++ return &smack_known_invalid;
+ }
+
+ /**
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 609e89d..3669d9f 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -62,11 +62,12 @@ LIST_HEAD(smk_ipv6_port_list);
+ * Returns a pointer to the master list entry for the Smack label
+ * or NULL if there was no label to fetch.
+ */
+-static char *smk_fetch(const char *name, struct inode *ip, struct dentry *dp)
++static struct smack_known *smk_fetch(const char *name, struct inode *ip,
++ struct dentry *dp)
+ {
+ int rc;
+ char *buffer;
+- char *result = NULL;
++ struct smack_known *skp = NULL;
+
+ if (ip->i_op->getxattr == NULL)
+ return NULL;
+@@ -77,11 +78,11 @@ static char *smk_fetch(const char *name, struct inode *ip, struct dentry *dp)
+
+ rc = ip->i_op->getxattr(dp, name, buffer, SMK_LONGLABEL);
+ if (rc > 0)
+- result = smk_import(buffer, rc);
++ skp = smk_import_entry(buffer, rc);
+
+ kfree(buffer);
+
+- return result;
++ return skp;
+ }
+
+ /**
+@@ -111,7 +112,8 @@ struct inode_smack *new_inode_smack(char *smack)
+ *
+ * Returns the new blob or NULL if there's no memory available
+ */
+-static struct task_smack *new_task_smack(char *task, char *forked, gfp_t gfp)
++static struct task_smack *new_task_smack(struct smack_known *task,
++ struct smack_known *forked, gfp_t gfp)
+ {
+ struct task_smack *tsp;
+
+@@ -173,17 +175,17 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
+ {
+ int rc;
+ struct smk_audit_info ad;
+- char *tsp;
++ struct smack_known *skp;
+
+ rc = cap_ptrace_access_check(ctp, mode);
+ if (rc != 0)
+ return rc;
+
+- tsp = smk_of_task(task_security(ctp));
++ skp = smk_of_task(task_security(ctp));
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, ctp);
+
+- rc = smk_curacc(tsp, MAY_READWRITE, &ad);
++ rc = smk_curacc(skp->smk_known, MAY_READWRITE, &ad);
+ return rc;
+ }
+
+@@ -199,17 +201,17 @@ static int smack_ptrace_traceme(struct task_struct *ptp)
+ {
+ int rc;
+ struct smk_audit_info ad;
+- char *tsp;
++ struct smack_known *skp;
+
+ rc = cap_ptrace_traceme(ptp);
+ if (rc != 0)
+ return rc;
+
+- tsp = smk_of_task(task_security(ptp));
++ skp = smk_of_task(task_security(ptp));
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, ptp);
+
+- rc = smk_curacc(tsp, MAY_READWRITE, &ad);
++ rc = smk_curacc(skp->smk_known, MAY_READWRITE, &ad);
+ return rc;
+ }
+
+@@ -224,12 +226,12 @@ static int smack_ptrace_traceme(struct task_struct *ptp)
+ static int smack_syslog(int typefrom_file)
+ {
+ int rc = 0;
+- char *sp = smk_of_current();
++ struct smack_known *skp = smk_of_current();
+
+ if (smack_privileged(CAP_MAC_OVERRIDE))
+ return 0;
+
+- if (sp != smack_known_floor.smk_known)
++ if (skp != &smack_known_floor)
+ rc = -EACCES;
+
+ return rc;
+@@ -533,7 +535,9 @@ static int smack_bprm_secureexec(struct linux_binprm *bprm)
+ */
+ static int smack_inode_alloc_security(struct inode *inode)
+ {
+- inode->i_security = new_inode_smack(smk_of_current());
++ struct smack_known *skp = smk_of_current();
++
++ inode->i_security = new_inode_smack(skp->smk_known);
+ if (inode->i_security == NULL)
+ return -ENOMEM;
+ return 0;
+@@ -566,9 +570,8 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr, char **name,
+ void **value, size_t *len)
+ {
+- struct smack_known *skp;
+ struct inode_smack *issp = inode->i_security;
+- char *csp = smk_of_current();
++ struct smack_known *skp = smk_of_current();
+ char *isp = smk_of_inode(inode);
+ char *dsp = smk_of_inode(dir);
+ int may;
+@@ -580,9 +583,8 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ }
+
+ if (value) {
+- skp = smk_find_entry(csp);
+ rcu_read_lock();
+- may = smk_access_entry(csp, dsp, &skp->smk_rules);
++ may = smk_access_entry(skp->smk_known, dsp, &skp->smk_rules);
+ rcu_read_unlock();
+
+ /*
+@@ -871,29 +873,31 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
+ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
+ {
+- char *nsp;
++ struct smack_known *skp;
+ struct inode_smack *isp = dentry->d_inode->i_security;
+
++ if (strcmp(name, XATTR_NAME_SMACKTRANSMUTE) == 0) {
++ isp->smk_flags |= SMK_INODE_TRANSMUTE;
++ return;
++ }
++
++ skp = smk_import_entry(value, size);
+ if (strcmp(name, XATTR_NAME_SMACK) == 0) {
+- nsp = smk_import(value, size);
+- if (nsp != NULL)
+- isp->smk_inode = nsp;
++ if (skp != NULL)
++ isp->smk_inode = skp->smk_known;
+ else
+ isp->smk_inode = smack_known_invalid.smk_known;
+ } else if (strcmp(name, XATTR_NAME_SMACKEXEC) == 0) {
+- nsp = smk_import(value, size);
+- if (nsp != NULL)
+- isp->smk_task = nsp;
++ if (skp != NULL)
++ isp->smk_task = skp;
+ else
+- isp->smk_task = smack_known_invalid.smk_known;
++ isp->smk_task = &smack_known_invalid;
+ } else if (strcmp(name, XATTR_NAME_SMACKMMAP) == 0) {
+- nsp = smk_import(value, size);
+- if (nsp != NULL)
+- isp->smk_mmap = nsp;
++ if (skp != NULL)
++ isp->smk_mmap = skp;
+ else
+- isp->smk_mmap = smack_known_invalid.smk_known;
+- } else if (strcmp(name, XATTR_NAME_SMACKTRANSMUTE) == 0)
+- isp->smk_flags |= SMK_INODE_TRANSMUTE;
++ isp->smk_mmap = &smack_known_invalid;
++ }
+
+ return;
+ }
+@@ -999,7 +1003,7 @@ static int smack_inode_getsecurity(const struct inode *inode,
+ if (strcmp(name, XATTR_SMACK_IPIN) == 0)
+ isp = ssp->smk_in;
+ else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
+- isp = ssp->smk_out;
++ isp = ssp->smk_out->smk_known;
+ else
+ return -EOPNOTSUPP;
+
+@@ -1079,7 +1083,9 @@ static int smack_file_permission(struct file *file, int mask)
+ */
+ static int smack_file_alloc_security(struct file *file)
+ {
+- file->f_security = smk_of_current();
++ struct smack_known *skp = smk_of_current();
++
++ file->f_security = skp->smk_known;
+ return 0;
+ }
+
+@@ -1190,10 +1196,9 @@ static int smack_mmap_file(struct file *file,
+ unsigned long flags)
+ {
+ struct smack_known *skp;
++ struct smack_known *mkp;
+ struct smack_rule *srp;
+ struct task_smack *tsp;
+- char *sp;
+- char *msmack;
+ char *osmack;
+ struct inode_smack *isp;
+ int may;
+@@ -1207,11 +1212,10 @@ static int smack_mmap_file(struct file *file,
+ isp = file_inode(file)->i_security;
+ if (isp->smk_mmap == NULL)
+ return 0;
+- msmack = isp->smk_mmap;
++ mkp = isp->smk_mmap;
+
+ tsp = current_security();
+- sp = smk_of_current();
+- skp = smk_find_entry(sp);
++ skp = smk_of_current();
+ rc = 0;
+
+ rcu_read_lock();
+@@ -1225,13 +1229,13 @@ static int smack_mmap_file(struct file *file,
+ /*
+ * Matching labels always allows access.
+ */
+- if (msmack == osmack)
++ if (mkp->smk_known == osmack)
+ continue;
+ /*
+ * If there is a matching local rule take
+ * that into account as well.
+ */
+- may = smk_access_entry(srp->smk_subject, osmack,
++ may = smk_access_entry(srp->smk_subject->smk_known, osmack,
+ &tsp->smk_rules);
+ if (may == -ENOENT)
+ may = srp->smk_access;
+@@ -1249,8 +1253,8 @@ static int smack_mmap_file(struct file *file,
+ * If there isn't one a SMACK64MMAP subject
+ * can't have as much access as current.
+ */
+- skp = smk_find_entry(msmack);
+- mmay = smk_access_entry(msmack, osmack, &skp->smk_rules);
++ mmay = smk_access_entry(mkp->smk_known, osmack,
++ &mkp->smk_rules);
+ if (mmay == -ENOENT) {
+ rc = -EACCES;
+ break;
+@@ -1259,7 +1263,8 @@ static int smack_mmap_file(struct file *file,
+ * If there is a local entry it modifies the
+ * potential access, too.
+ */
+- tmay = smk_access_entry(msmack, osmack, &tsp->smk_rules);
++ tmay = smk_access_entry(mkp->smk_known, osmack,
++ &tsp->smk_rules);
+ if (tmay != -ENOENT)
+ mmay &= tmay;
+
+@@ -1288,7 +1293,9 @@ static int smack_mmap_file(struct file *file,
+ */
+ static int smack_file_set_fowner(struct file *file)
+ {
+- file->f_security = smk_of_current();
++ struct smack_known *skp = smk_of_current();
++
++ file->f_security = skp->smk_known;
+ return 0;
+ }
+
+@@ -1306,9 +1313,10 @@ static int smack_file_set_fowner(struct file *file)
+ static int smack_file_send_sigiotask(struct task_struct *tsk,
+ struct fown_struct *fown, int signum)
+ {
++ struct smack_known *skp;
++ struct smack_known *tkp = smk_of_task(tsk->cred->security);
+ struct file *file;
+ int rc;
+- char *tsp = smk_of_task(tsk->cred->security);
+ struct smk_audit_info ad;
+
+ /*
+@@ -1317,13 +1325,14 @@ static int smack_file_send_sigiotask(struct task_struct *tsk,
+ file = container_of(fown, struct file, f_owner);
+
+ /* we don't log here as rc can be overriden */
+- rc = smk_access(file->f_security, tsp, MAY_WRITE, NULL);
++ skp = smk_find_entry(file->f_security);
++ rc = smk_access(skp, tkp->smk_known, MAY_WRITE, NULL);
+ if (rc != 0 && has_capability(tsk, CAP_MAC_OVERRIDE))
+ rc = 0;
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, tsk);
+- smack_log(file->f_security, tsp, MAY_WRITE, rc, &ad);
++ smack_log(file->f_security, tkp->smk_known, MAY_WRITE, rc, &ad);
+ return rc;
+ }
+
+@@ -1478,12 +1487,12 @@ static void smack_cred_transfer(struct cred *new, const struct cred *old)
+ static int smack_kernel_act_as(struct cred *new, u32 secid)
+ {
+ struct task_smack *new_tsp = new->security;
+- char *smack = smack_from_secid(secid);
++ struct smack_known *skp = smack_from_secid(secid);
+
+- if (smack == NULL)
++ if (skp == NULL)
+ return -EINVAL;
+
+- new_tsp->smk_task = smack;
++ new_tsp->smk_task = skp;
+ return 0;
+ }
+
+@@ -1501,8 +1510,8 @@ static int smack_kernel_create_files_as(struct cred *new,
+ struct inode_smack *isp = inode->i_security;
+ struct task_smack *tsp = new->security;
+
+- tsp->smk_forked = isp->smk_inode;
+- tsp->smk_task = isp->smk_inode;
++ tsp->smk_forked = smk_find_entry(isp->smk_inode);
++ tsp->smk_task = tsp->smk_forked;
+ return 0;
+ }
+
+@@ -1518,10 +1527,11 @@ static int smk_curacc_on_task(struct task_struct *p, int access,
+ const char *caller)
+ {
+ struct smk_audit_info ad;
++ struct smack_known *skp = smk_of_task(task_security(p));
+
+ smk_ad_init(&ad, caller, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, p);
+- return smk_curacc(smk_of_task(task_security(p)), access, &ad);
++ return smk_curacc(skp->smk_known, access, &ad);
+ }
+
+ /**
+@@ -1567,7 +1577,9 @@ static int smack_task_getsid(struct task_struct *p)
+ */
+ static void smack_task_getsecid(struct task_struct *p, u32 *secid)
+ {
+- *secid = smack_to_secid(smk_of_task(task_security(p)));
++ struct smack_known *skp = smk_of_task(task_security(p));
++
++ *secid = skp->smk_secid;
+ }
+
+ /**
+@@ -1671,6 +1683,8 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
+ int sig, u32 secid)
+ {
+ struct smk_audit_info ad;
++ struct smack_known *skp;
++ struct smack_known *tkp = smk_of_task(task_security(p));
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, p);
+@@ -1679,15 +1693,14 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
+ * can write the receiver.
+ */
+ if (secid == 0)
+- return smk_curacc(smk_of_task(task_security(p)), MAY_WRITE,
+- &ad);
++ return smk_curacc(tkp->smk_known, MAY_WRITE, &ad);
+ /*
+ * If the secid isn't 0 we're dealing with some USB IO
+ * specific behavior. This is not clean. For one thing
+ * we can't take privilege into account.
+ */
+- return smk_access(smack_from_secid(secid),
+- smk_of_task(task_security(p)), MAY_WRITE, &ad);
++ skp = smack_from_secid(secid);
++ return smk_access(skp, tkp->smk_known, MAY_WRITE, &ad);
+ }
+
+ /**
+@@ -1719,7 +1732,9 @@ static int smack_task_wait(struct task_struct *p)
+ static void smack_task_to_inode(struct task_struct *p, struct inode *inode)
+ {
+ struct inode_smack *isp = inode->i_security;
+- isp->smk_inode = smk_of_task(task_security(p));
++ struct smack_known *skp = smk_of_task(task_security(p));
++
++ isp->smk_inode = skp->smk_known;
+ }
+
+ /*
+@@ -1738,15 +1753,15 @@ static void smack_task_to_inode(struct task_struct *p, struct inode *inode)
+ */
+ static int smack_sk_alloc_security(struct sock *sk, int family, gfp_t gfp_flags)
+ {
+- char *csp = smk_of_current();
++ struct smack_known *skp = smk_of_current();
+ struct socket_smack *ssp;
+
+ ssp = kzalloc(sizeof(struct socket_smack), gfp_flags);
+ if (ssp == NULL)
+ return -ENOMEM;
+
+- ssp->smk_in = csp;
+- ssp->smk_out = csp;
++ ssp->smk_in = skp->smk_known;
++ ssp->smk_out = skp;
+ ssp->smk_packet = NULL;
+
+ sk->sk_security = ssp;
+@@ -1833,7 +1848,7 @@ static int smack_netlabel(struct sock *sk, int labeled)
+ labeled == SMACK_UNLABELED_SOCKET)
+ netlbl_sock_delattr(sk);
+ else {
+- skp = smk_find_entry(ssp->smk_out);
++ skp = ssp->smk_out;
+ rc = netlbl_sock_setattr(sk, sk->sk_family, &skp->smk_netlabel);
+ }
+
+@@ -1856,6 +1871,7 @@ static int smack_netlabel(struct sock *sk, int labeled)
+ */
+ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
+ {
++ struct smack_known *skp;
+ int rc;
+ int sk_lbl;
+ char *hostsp;
+@@ -1874,7 +1890,8 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
+ ad.a.u.net->v4info.daddr = sap->sin_addr.s_addr;
+ #endif
+ sk_lbl = SMACK_UNLABELED_SOCKET;
+- rc = smk_access(ssp->smk_out, hostsp, MAY_WRITE, &ad);
++ skp = ssp->smk_out;
++ rc = smk_access(skp, hostsp, MAY_WRITE, &ad);
+ } else {
+ sk_lbl = SMACK_CIPSO_SOCKET;
+ rc = 0;
+@@ -1974,8 +1991,8 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr *address,
+ struct sockaddr_in6 *addr6;
+ struct smk_port_label *spp;
+ struct socket_smack *ssp = sk->sk_security;
++ struct smack_known *skp;
+ unsigned short port = 0;
+- char *subject;
+ char *object;
+ struct smk_audit_info ad;
+ #ifdef CONFIG_AUDIT
+@@ -1983,11 +2000,11 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr *address,
+ #endif
+
+ if (act == SMK_RECEIVING) {
+- subject = smack_net_ambient;
++ skp = smack_net_ambient;
+ object = ssp->smk_in;
+ } else {
+- subject = ssp->smk_out;
+- object = smack_net_ambient;
++ skp = ssp->smk_out;
++ object = smack_net_ambient->smk_known;
+ }
+
+ /*
+@@ -2008,7 +2025,7 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr *address,
+ * It's local so the send check has to have passed.
+ */
+ if (act == SMK_RECEIVING) {
+- subject = smack_known_web.smk_known;
++ skp = &smack_known_web;
+ goto auditout;
+ }
+
+@@ -2017,7 +2034,7 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr *address,
+ continue;
+ object = spp->smk_in;
+ if (act == SMK_CONNECTING)
+- ssp->smk_packet = spp->smk_out;
++ ssp->smk_packet = spp->smk_out->smk_known;
+ break;
+ }
+
+@@ -2032,7 +2049,7 @@ auditout:
+ else
+ ad.a.u.net->v6info.daddr = addr6->sin6_addr;
+ #endif
+- return smk_access(subject, object, MAY_WRITE, &ad);
++ return smk_access(skp, object, MAY_WRITE, &ad);
+ }
+
+ /**
+@@ -2050,7 +2067,7 @@ auditout:
+ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ const void *value, size_t size, int flags)
+ {
+- char *sp;
++ struct smack_known *skp;
+ struct inode_smack *nsp = inode->i_security;
+ struct socket_smack *ssp;
+ struct socket *sock;
+@@ -2059,12 +2076,12 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ if (value == NULL || size > SMK_LONGLABEL || size == 0)
+ return -EACCES;
+
+- sp = smk_import(value, size);
+- if (sp == NULL)
++ skp = smk_import_entry(value, size);
++ if (skp == NULL)
+ return -EINVAL;
+
+ if (strcmp(name, XATTR_SMACK_SUFFIX) == 0) {
+- nsp->smk_inode = sp;
++ nsp->smk_inode = skp->smk_known;
+ nsp->smk_flags |= SMK_INODE_INSTANT;
+ return 0;
+ }
+@@ -2081,9 +2098,9 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ ssp = sock->sk->sk_security;
+
+ if (strcmp(name, XATTR_SMACK_IPIN) == 0)
+- ssp->smk_in = sp;
++ ssp->smk_in = skp->smk_known;
+ else if (strcmp(name, XATTR_SMACK_IPOUT) == 0) {
+- ssp->smk_out = sp;
++ ssp->smk_out = skp;
+ if (sock->sk->sk_family == PF_INET) {
+ rc = smack_netlabel(sock->sk, SMACK_CIPSO_SOCKET);
+ if (rc != 0)
+@@ -2203,7 +2220,9 @@ static int smack_flags_to_may(int flags)
+ */
+ static int smack_msg_msg_alloc_security(struct msg_msg *msg)
+ {
+- msg->security = smk_of_current();
++ struct smack_known *skp = smk_of_current();
++
++ msg->security = skp->smk_known;
+ return 0;
+ }
+
+@@ -2238,8 +2257,9 @@ static char *smack_of_shm(struct shmid_kernel *shp)
+ static int smack_shm_alloc_security(struct shmid_kernel *shp)
+ {
+ struct kern_ipc_perm *isp = &shp->shm_perm;
++ struct smack_known *skp = smk_of_current();
+
+- isp->security = smk_of_current();
++ isp->security = skp->smk_known;
+ return 0;
+ }
+
+@@ -2361,8 +2381,9 @@ static char *smack_of_sem(struct sem_array *sma)
+ static int smack_sem_alloc_security(struct sem_array *sma)
+ {
+ struct kern_ipc_perm *isp = &sma->sem_perm;
++ struct smack_known *skp = smk_of_current();
+
+- isp->security = smk_of_current();
++ isp->security = skp->smk_known;
+ return 0;
+ }
+
+@@ -2479,8 +2500,9 @@ static int smack_sem_semop(struct sem_array *sma, struct sembuf *sops,
+ static int smack_msg_queue_alloc_security(struct msg_queue *msq)
+ {
+ struct kern_ipc_perm *kisp = &msq->q_perm;
++ struct smack_known *skp = smk_of_current();
+
+- kisp->security = smk_of_current();
++ kisp->security = skp->smk_known;
+ return 0;
+ }
+
+@@ -2652,8 +2674,8 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ struct super_block *sbp;
+ struct superblock_smack *sbsp;
+ struct inode_smack *isp;
+- char *csp = smk_of_current();
+- char *fetched;
++ struct smack_known *skp;
++ struct smack_known *ckp = smk_of_current();
+ char *final;
+ char trattr[TRANS_TRUE_SIZE];
+ int transflag = 0;
+@@ -2720,7 +2742,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * Programs that change smack have to treat the
+ * pty with respect.
+ */
+- final = csp;
++ final = ckp->smk_known;
+ break;
+ case SOCKFS_MAGIC:
+ /*
+@@ -2775,9 +2797,9 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * Get the dentry for xattr.
+ */
+ dp = dget(opt_dentry);
+- fetched = smk_fetch(XATTR_NAME_SMACK, inode, dp);
+- if (fetched != NULL)
+- final = fetched;
++ skp = smk_fetch(XATTR_NAME_SMACK, inode, dp);
++ if (skp != NULL)
++ final = skp->smk_known;
+
+ /*
+ * Transmuting directory
+@@ -2817,7 +2839,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ }
+
+ if (final == NULL)
+- isp->smk_inode = csp;
++ isp->smk_inode = ckp->smk_known;
+ else
+ isp->smk_inode = final;
+
+@@ -2840,13 +2862,14 @@ unlockandout:
+ */
+ static int smack_getprocattr(struct task_struct *p, char *name, char **value)
+ {
++ struct smack_known *skp = smk_of_task(task_security(p));
+ char *cp;
+ int slen;
+
+ if (strcmp(name, "current") != 0)
+ return -EINVAL;
+
+- cp = kstrdup(smk_of_task(task_security(p)), GFP_KERNEL);
++ cp = kstrdup(skp->smk_known, GFP_KERNEL);
+ if (cp == NULL)
+ return -ENOMEM;
+
+@@ -2872,7 +2895,7 @@ static int smack_setprocattr(struct task_struct *p, char *name,
+ {
+ struct task_smack *tsp;
+ struct cred *new;
+- char *newsmack;
++ struct smack_known *skp;
+
+ /*
+ * Changing another process' Smack value is too dangerous
+@@ -2890,14 +2913,14 @@ static int smack_setprocattr(struct task_struct *p, char *name,
+ if (strcmp(name, "current") != 0)
+ return -EINVAL;
+
+- newsmack = smk_import(value, size);
+- if (newsmack == NULL)
++ skp = smk_import_entry(value, size);
++ if (skp == NULL)
+ return -EINVAL;
+
+ /*
+ * No process is ever allowed the web ("@") label.
+ */
+- if (newsmack == smack_known_web.smk_known)
++ if (skp == &smack_known_web)
+ return -EPERM;
+
+ new = prepare_creds();
+@@ -2905,7 +2928,7 @@ static int smack_setprocattr(struct task_struct *p, char *name,
+ return -ENOMEM;
+
+ tsp = new->security;
+- tsp->smk_task = newsmack;
++ tsp->smk_task = skp;
+
+ commit_creds(new);
+ return size;
+@@ -2923,6 +2946,7 @@ static int smack_setprocattr(struct task_struct *p, char *name,
+ static int smack_unix_stream_connect(struct sock *sock,
+ struct sock *other, struct sock *newsk)
+ {
++ struct smack_known *skp;
+ struct socket_smack *ssp = sock->sk_security;
+ struct socket_smack *osp = other->sk_security;
+ struct socket_smack *nsp = newsk->sk_security;
+@@ -2936,15 +2960,17 @@ static int smack_unix_stream_connect(struct sock *sock,
+ smk_ad_setfield_u_net_sk(&ad, other);
+ #endif
+
+- if (!smack_privileged(CAP_MAC_OVERRIDE))
+- rc = smk_access(ssp->smk_out, osp->smk_in, MAY_WRITE, &ad);
++ if (!smack_privileged(CAP_MAC_OVERRIDE)) {
++ skp = ssp->smk_out;
++ rc = smk_access(skp, osp->smk_in, MAY_WRITE, &ad);
++ }
+
+ /*
+ * Cross reference the peer labels for SO_PEERSEC.
+ */
+ if (rc == 0) {
+- nsp->smk_packet = ssp->smk_out;
+- ssp->smk_packet = osp->smk_out;
++ nsp->smk_packet = ssp->smk_out->smk_known;
++ ssp->smk_packet = osp->smk_out->smk_known;
+ }
+
+ return rc;
+@@ -2962,8 +2988,8 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
+ {
+ struct socket_smack *ssp = sock->sk->sk_security;
+ struct socket_smack *osp = other->sk->sk_security;
++ struct smack_known *skp;
+ struct smk_audit_info ad;
+- int rc = 0;
+
+ #ifdef CONFIG_AUDIT
+ struct lsm_network_audit net;
+@@ -2972,10 +2998,11 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
+ smk_ad_setfield_u_net_sk(&ad, other->sk);
+ #endif
+
+- if (!smack_privileged(CAP_MAC_OVERRIDE))
+- rc = smk_access(ssp->smk_out, osp->smk_in, MAY_WRITE, &ad);
++ if (smack_privileged(CAP_MAC_OVERRIDE))
++ return 0;
+
+- return rc;
++ skp = ssp->smk_out;
++ return smk_access(skp, osp->smk_in, MAY_WRITE, &ad);
+ }
+
+ /**
+@@ -3017,13 +3044,12 @@ static int smack_socket_sendmsg(struct socket *sock, struct msghdr *msg,
+ * @sap: netlabel secattr
+ * @ssp: socket security information
+ *
+- * Returns a pointer to a Smack label found on the label list.
++ * Returns a pointer to a Smack label entry found on the label list.
+ */
+-static char *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+- struct socket_smack *ssp)
++static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
++ struct socket_smack *ssp)
+ {
+- struct smack_known *kp;
+- char *sp;
++ struct smack_known *skp;
+ int found = 0;
+
+ if ((sap->flags & NETLBL_SECATTR_MLS_LVL) != 0) {
+@@ -3038,11 +3064,11 @@ static char *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ * ambient value.
+ */
+ rcu_read_lock();
+- list_for_each_entry(kp, &smack_known_list, list) {
+- if (sap->attr.mls.lvl != kp->smk_netlabel.attr.mls.lvl)
++ list_for_each_entry(skp, &smack_known_list, list) {
++ if (sap->attr.mls.lvl != skp->smk_netlabel.attr.mls.lvl)
+ continue;
+ if (memcmp(sap->attr.mls.cat,
+- kp->smk_netlabel.attr.mls.cat,
++ skp->smk_netlabel.attr.mls.cat,
+ SMK_CIPSOLEN) != 0)
+ continue;
+ found = 1;
+@@ -3051,17 +3077,17 @@ static char *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ rcu_read_unlock();
+
+ if (found)
+- return kp->smk_known;
++ return skp;
+
+ if (ssp != NULL && ssp->smk_in == smack_known_star.smk_known)
+- return smack_known_web.smk_known;
+- return smack_known_star.smk_known;
++ return &smack_known_web;
++ return &smack_known_star;
+ }
+ if ((sap->flags & NETLBL_SECATTR_SECID) != 0) {
+ /*
+ * Looks like a fallback, which gives us a secid.
+ */
+- sp = smack_from_secid(sap->attr.secid);
++ skp = smack_from_secid(sap->attr.secid);
+ /*
+ * This has got to be a bug because it is
+ * impossible to specify a fallback without
+@@ -3069,8 +3095,8 @@ static char *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ * it has a secid, and the only way to get a
+ * secid is from a fallback.
+ */
+- BUG_ON(sp == NULL);
+- return sp;
++ BUG_ON(skp == NULL);
++ return skp;
+ }
+ /*
+ * Without guidance regarding the smack value
+@@ -3139,8 +3165,8 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ {
+ struct netlbl_lsm_secattr secattr;
+ struct socket_smack *ssp = sk->sk_security;
++ struct smack_known *skp;
+ struct sockaddr sadd;
+- char *csp;
+ int rc = 0;
+ struct smk_audit_info ad;
+ #ifdef CONFIG_AUDIT
+@@ -3155,9 +3181,9 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+
+ rc = netlbl_skbuff_getattr(skb, sk->sk_family, &secattr);
+ if (rc == 0)
+- csp = smack_from_secattr(&secattr, ssp);
++ skp = smack_from_secattr(&secattr, ssp);
+ else
+- csp = smack_net_ambient;
++ skp = smack_net_ambient;
+
+ netlbl_secattr_destroy(&secattr);
+
+@@ -3173,7 +3199,7 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ * This is the simplist possible security model
+ * for networking.
+ */
+- rc = smk_access(csp, ssp->smk_in, MAY_WRITE, &ad);
++ rc = smk_access(skp, ssp->smk_in, MAY_WRITE, &ad);
+ if (rc != 0)
+ netlbl_skbuff_err(skb, rc, 0);
+ break;
+@@ -3238,7 +3264,7 @@ static int smack_socket_getpeersec_dgram(struct socket *sock,
+ {
+ struct netlbl_lsm_secattr secattr;
+ struct socket_smack *ssp = NULL;
+- char *sp;
++ struct smack_known *skp;
+ int family = PF_UNSPEC;
+ u32 s = 0; /* 0 is the invalid secid */
+ int rc;
+@@ -3254,7 +3280,7 @@ static int smack_socket_getpeersec_dgram(struct socket *sock,
+
+ if (family == PF_UNIX) {
+ ssp = sock->sk->sk_security;
+- s = smack_to_secid(ssp->smk_out);
++ s = ssp->smk_out->smk_secid;
+ } else if (family == PF_INET || family == PF_INET6) {
+ /*
+ * Translate what netlabel gave us.
+@@ -3264,8 +3290,8 @@ static int smack_socket_getpeersec_dgram(struct socket *sock,
+ netlbl_secattr_init(&secattr);
+ rc = netlbl_skbuff_getattr(skb, family, &secattr);
+ if (rc == 0) {
+- sp = smack_from_secattr(&secattr, ssp);
+- s = smack_to_secid(sp);
++ skp = smack_from_secattr(&secattr, ssp);
++ s = skp->smk_secid;
+ }
+ netlbl_secattr_destroy(&secattr);
+ }
+@@ -3286,13 +3312,15 @@ static int smack_socket_getpeersec_dgram(struct socket *sock,
+ static void smack_sock_graft(struct sock *sk, struct socket *parent)
+ {
+ struct socket_smack *ssp;
++ struct smack_known *skp = smk_of_current();
+
+ if (sk == NULL ||
+ (sk->sk_family != PF_INET && sk->sk_family != PF_INET6))
+ return;
+
+ ssp = sk->sk_security;
+- ssp->smk_in = ssp->smk_out = smk_of_current();
++ ssp->smk_in = skp->smk_known;
++ ssp->smk_out = skp;
+ /* cssp->smk_packet is already set in smack_inet_csk_clone() */
+ }
+
+@@ -3314,7 +3342,6 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ struct netlbl_lsm_secattr secattr;
+ struct sockaddr_in addr;
+ struct iphdr *hdr;
+- char *sp;
+ char *hsp;
+ int rc;
+ struct smk_audit_info ad;
+@@ -3337,9 +3364,9 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ netlbl_secattr_init(&secattr);
+ rc = netlbl_skbuff_getattr(skb, family, &secattr);
+ if (rc == 0)
+- sp = smack_from_secattr(&secattr, ssp);
++ skp = smack_from_secattr(&secattr, ssp);
+ else
+- sp = smack_known_huh.smk_known;
++ skp = &smack_known_huh;
+ netlbl_secattr_destroy(&secattr);
+
+ #ifdef CONFIG_AUDIT
+@@ -3352,7 +3379,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ * Receiving a packet requires that the other end be able to write
+ * here. Read access is not required.
+ */
+- rc = smk_access(sp, ssp->smk_in, MAY_WRITE, &ad);
++ rc = smk_access(skp, ssp->smk_in, MAY_WRITE, &ad);
+ if (rc != 0)
+ return rc;
+
+@@ -3360,7 +3387,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ * Save the peer's label in the request_sock so we can later setup
+ * smk_packet in the child socket so that SO_PEERCRED can report it.
+ */
+- req->peer_secid = smack_to_secid(sp);
++ req->peer_secid = skp->smk_secid;
+
+ /*
+ * We need to decide if we want to label the incoming connection here
+@@ -3373,10 +3400,9 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ hsp = smack_host_label(&addr);
+ rcu_read_unlock();
+
+- if (hsp == NULL) {
+- skp = smk_find_entry(sp);
++ if (hsp == NULL)
+ rc = netlbl_req_setattr(req, &skp->smk_netlabel);
+- } else
++ else
+ netlbl_req_delattr(req);
+
+ return rc;
+@@ -3393,10 +3419,12 @@ static void smack_inet_csk_clone(struct sock *sk,
+ const struct request_sock *req)
+ {
+ struct socket_smack *ssp = sk->sk_security;
++ struct smack_known *skp;
+
+- if (req->peer_secid != 0)
+- ssp->smk_packet = smack_from_secid(req->peer_secid);
+- else
++ if (req->peer_secid != 0) {
++ skp = smack_from_secid(req->peer_secid);
++ ssp->smk_packet = skp->smk_known;
++ } else
+ ssp->smk_packet = NULL;
+ }
+
+@@ -3422,7 +3450,9 @@ static void smack_inet_csk_clone(struct sock *sk,
+ static int smack_key_alloc(struct key *key, const struct cred *cred,
+ unsigned long flags)
+ {
+- key->security = smk_of_task(cred->security);
++ struct smack_known *skp = smk_of_task(cred->security);
++
++ key->security = skp->smk_known;
+ return 0;
+ }
+
+@@ -3451,7 +3481,7 @@ static int smack_key_permission(key_ref_t key_ref,
+ {
+ struct key *keyp;
+ struct smk_audit_info ad;
+- char *tsp = smk_of_task(cred->security);
++ struct smack_known *tkp = smk_of_task(cred->security);
+
+ keyp = key_ref_to_ptr(key_ref);
+ if (keyp == NULL)
+@@ -3465,15 +3495,14 @@ static int smack_key_permission(key_ref_t key_ref,
+ /*
+ * This should not occur
+ */
+- if (tsp == NULL)
++ if (tkp == NULL)
+ return -EACCES;
+ #ifdef CONFIG_AUDIT
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_KEY);
+ ad.a.u.key_struct.key = keyp->serial;
+ ad.a.u.key_struct.key_desc = keyp->description;
+ #endif
+- return smk_access(tsp, keyp->security,
+- MAY_READWRITE, &ad);
++ return smk_access(tkp, keyp->security, MAY_READWRITE, &ad);
+ }
+ #endif /* CONFIG_KEYS */
+
+@@ -3555,7 +3584,7 @@ static int smack_audit_rule_known(struct audit_krule *krule)
+ static int smack_audit_rule_match(u32 secid, u32 field, u32 op, void *vrule,
+ struct audit_context *actx)
+ {
+- char *smack;
++ struct smack_known *skp;
+ char *rule = vrule;
+
+ if (!rule) {
+@@ -3567,7 +3596,7 @@ static int smack_audit_rule_match(u32 secid, u32 field, u32 op, void *vrule,
+ if (field != AUDIT_SUBJ_USER && field != AUDIT_OBJ_USER)
+ return 0;
+
+- smack = smack_from_secid(secid);
++ skp = smack_from_secid(secid);
+
+ /*
+ * No need to do string comparisons. If a match occurs,
+@@ -3575,9 +3604,9 @@ static int smack_audit_rule_match(u32 secid, u32 field, u32 op, void *vrule,
+ * label.
+ */
+ if (op == Audit_equal)
+- return (rule == smack);
++ return (rule == skp->smk_known);
+ if (op == Audit_not_equal)
+- return (rule != smack);
++ return (rule != skp->smk_known);
+
+ return 0;
+ }
+@@ -3605,11 +3634,11 @@ static void smack_audit_rule_free(void *vrule)
+ */
+ static int smack_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+ {
+- char *sp = smack_from_secid(secid);
++ struct smack_known *skp = smack_from_secid(secid);
+
+ if (secdata)
+- *secdata = sp;
+- *seclen = strlen(sp);
++ *secdata = skp->smk_known;
++ *seclen = strlen(skp->smk_known);
+ return 0;
+ }
+
+@@ -3845,8 +3874,8 @@ static __init int smack_init(void)
+ if (!security_module_enable(&smack_ops))
+ return 0;
+
+- tsp = new_task_smack(smack_known_floor.smk_known,
+- smack_known_floor.smk_known, GFP_KERNEL);
++ tsp = new_task_smack(&smack_known_floor, &smack_known_floor,
++ GFP_KERNEL);
+ if (tsp == NULL)
+ return -ENOMEM;
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 53a08b8..3c79cba 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -66,7 +66,7 @@ static DEFINE_MUTEX(smk_netlbladdr_lock);
+ * If it isn't somehow marked, use this.
+ * It can be reset via smackfs/ambient
+ */
+-char *smack_net_ambient;
++struct smack_known *smack_net_ambient;
+
+ /*
+ * This is the level in a CIPSO header that indicates a
+@@ -112,7 +112,7 @@ struct smack_master_list {
+ LIST_HEAD(smack_rule_list);
+
+ struct smack_parsed_rule {
+- char *smk_subject;
++ struct smack_known *smk_subject;
+ char *smk_object;
+ int smk_access1;
+ int smk_access2;
+@@ -163,9 +163,11 @@ static inline void smack_catset_bit(unsigned int cat, char *catsetp)
+ */
+ static void smk_netlabel_audit_set(struct netlbl_audit *nap)
+ {
++ struct smack_known *skp = smk_of_current();
++
+ nap->loginuid = audit_get_loginuid(current);
+ nap->sessionid = audit_get_sessionid(current);
+- nap->secid = smack_to_secid(smk_of_current());
++ nap->secid = skp->smk_secid;
+ }
+
+ /*
+@@ -306,7 +308,7 @@ static int smk_fill_rule(const char *subject, const char *object,
+ struct smack_known *skp;
+
+ if (import) {
+- rule->smk_subject = smk_import(subject, len);
++ rule->smk_subject = smk_import_entry(subject, len);
+ if (rule->smk_subject == NULL)
+ return -1;
+
+@@ -321,7 +323,7 @@ static int smk_fill_rule(const char *subject, const char *object,
+ kfree(cp);
+ if (skp == NULL)
+ return -1;
+- rule->smk_subject = skp->smk_known;
++ rule->smk_subject = skp;
+
+ cp = smk_parse_smack(object, len);
+ if (cp == NULL)
+@@ -445,7 +447,6 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
+ struct list_head *rule_list,
+ struct mutex *rule_lock, int format)
+ {
+- struct smack_known *skp;
+ struct smack_parsed_rule *rule;
+ char *data;
+ int datalen;
+@@ -505,12 +506,10 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
+ goto out_free_rule;
+ }
+
+-
+ if (rule_list == NULL) {
+ load = 1;
+- skp = smk_find_entry(rule->smk_subject);
+- rule_list = &skp->smk_rules;
+- rule_lock = &skp->smk_rules_lock;
++ rule_list = &rule->smk_subject->smk_rules;
++ rule_lock = &rule->smk_subject->smk_rules_lock;
+ }
+
+ rc = smk_set_access(rule, rule_list, rule_lock, load);
+@@ -579,13 +578,14 @@ static void smk_rule_show(struct seq_file *s, struct smack_rule *srp, int max)
+ * because you should expect to be able to write
+ * anything you read back.
+ */
+- if (strlen(srp->smk_subject) >= max || strlen(srp->smk_object) >= max)
++ if (strlen(srp->smk_subject->smk_known) >= max ||
++ strlen(srp->smk_object) >= max)
+ return;
+
+ if (srp->smk_access == 0)
+ return;
+
+- seq_printf(s, "%s %s", srp->smk_subject, srp->smk_object);
++ seq_printf(s, "%s %s", srp->smk_subject->smk_known, srp->smk_object);
+
+ seq_putc(s, ' ');
+
+@@ -738,9 +738,9 @@ static void smk_unlbl_ambient(char *oldambient)
+ __func__, __LINE__, rc);
+ }
+ if (smack_net_ambient == NULL)
+- smack_net_ambient = smack_known_floor.smk_known;
++ smack_net_ambient = &smack_known_floor;
+
+- rc = netlbl_cfg_unlbl_map_add(smack_net_ambient, PF_INET,
++ rc = netlbl_cfg_unlbl_map_add(smack_net_ambient->smk_known, PF_INET,
+ NULL, NULL, &nai);
+ if (rc != 0)
+ printk(KERN_WARNING "%s:%d add rc = %d\n",
+@@ -1535,11 +1535,12 @@ static ssize_t smk_read_ambient(struct file *filp, char __user *buf,
+ */
+ mutex_lock(&smack_ambient_lock);
+
+- asize = strlen(smack_net_ambient) + 1;
++ asize = strlen(smack_net_ambient->smk_known) + 1;
+
+ if (cn >= asize)
+ rc = simple_read_from_buffer(buf, cn, ppos,
+- smack_net_ambient, asize);
++ smack_net_ambient->smk_known,
++ asize);
+ else
+ rc = -EINVAL;
+
+@@ -1560,8 +1561,8 @@ static ssize_t smk_read_ambient(struct file *filp, char __user *buf,
+ static ssize_t smk_write_ambient(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+ {
++ struct smack_known *skp;
+ char *oldambient;
+- char *smack = NULL;
+ char *data;
+ int rc = count;
+
+@@ -1577,16 +1578,16 @@ static ssize_t smk_write_ambient(struct file *file, const char __user *buf,
+ goto out;
+ }
+
+- smack = smk_import(data, count);
+- if (smack == NULL) {
++ skp = smk_import_entry(data, count);
++ if (skp == NULL) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ mutex_lock(&smack_ambient_lock);
+
+- oldambient = smack_net_ambient;
+- smack_net_ambient = smack;
++ oldambient = smack_net_ambient->smk_known;
++ smack_net_ambient = skp;
+ smk_unlbl_ambient(oldambient);
+
+ mutex_unlock(&smack_ambient_lock);
+@@ -1645,7 +1646,7 @@ static ssize_t smk_write_onlycap(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+ {
+ char *data;
+- char *sp = smk_of_task(current->cred->security);
++ struct smack_known *skp = smk_of_task(current->cred->security);
+ int rc = count;
+
+ if (!smack_privileged(CAP_MAC_ADMIN))
+@@ -1656,7 +1657,7 @@ static ssize_t smk_write_onlycap(struct file *file, const char __user *buf,
+ * explicitly for clarity. The smk_access() implementation
+ * would use smk_access(smack_onlycap, MAY_WRITE)
+ */
+- if (smack_onlycap != NULL && smack_onlycap != sp)
++ if (smack_onlycap != NULL && smack_onlycap != skp->smk_known)
+ return -EPERM;
+
+ data = kzalloc(count, GFP_KERNEL);
+@@ -1866,8 +1867,8 @@ static ssize_t smk_user_access(struct file *file, const char __user *buf,
+ if (res)
+ return -EINVAL;
+
+- res = smk_access(rule.smk_subject, rule.smk_object, rule.smk_access1,
+- NULL);
++ res = smk_access(rule.smk_subject, rule.smk_object,
++ rule.smk_access1, NULL);
+ data[0] = res == 0 ? '1' : '0';
+ data[1] = '\0';
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0003-Smack-Add-smkfstransmute-mount-option.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0003-Smack-Add-smkfstransmute-mount-option.patch
new file mode 100644
index 0000000..5f9a218
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0003-Smack-Add-smkfstransmute-mount-option.patch
@@ -0,0 +1,101 @@
+From 4e05ff0ecdea0eca7bee89f38553b14cd12c15ec Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Wed, 22 May 2013 18:43:07 -0700
+Subject: [PATCH 03/54] Smack: Add smkfstransmute mount option
+
+Suppliment the smkfsroot mount option with another, smkfstransmute,
+that does the same thing but also marks the root inode as
+transmutting. This allows a freshly created filesystem to
+be mounted with a transmutting heirarchy.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack.h | 1 +
+ security/smack/smack_lsm.c | 25 ++++++++++++++++++++-----
+ 2 files changed, 21 insertions(+), 5 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index 159f25b..339614c 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -143,6 +143,7 @@ struct smk_port_label {
+ #define SMK_FSFLOOR "smackfsfloor="
+ #define SMK_FSHAT "smackfshat="
+ #define SMK_FSROOT "smackfsroot="
++#define SMK_FSTRANS "smackfstransmute="
+
+ #define SMACK_CIPSO_OPTION "-CIPSO"
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 3669d9f..6a08330 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -261,8 +261,9 @@ static int smack_sb_alloc_security(struct super_block *sb)
+ sbsp->smk_default = smack_known_floor.smk_known;
+ sbsp->smk_floor = smack_known_floor.smk_known;
+ sbsp->smk_hat = smack_known_hat.smk_known;
+- sbsp->smk_initialized = 0;
+-
++ /*
++ * smk_initialized will be zero from kzalloc.
++ */
+ sb->s_security = sbsp;
+
+ return 0;
+@@ -306,6 +307,8 @@ static int smack_sb_copy_data(char *orig, char *smackopts)
+ dp = smackopts;
+ else if (strstr(cp, SMK_FSROOT) == cp)
+ dp = smackopts;
++ else if (strstr(cp, SMK_FSTRANS) == cp)
++ dp = smackopts;
+ else
+ dp = otheropts;
+
+@@ -341,8 +344,9 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+ char *op;
+ char *commap;
+ char *nsp;
++ int transmute = 0;
+
+- if (sp->smk_initialized != 0)
++ if (sp->smk_initialized)
+ return 0;
+
+ sp->smk_initialized = 1;
+@@ -373,6 +377,13 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+ nsp = smk_import(op, 0);
+ if (nsp != NULL)
+ sp->smk_root = nsp;
++ } else if (strncmp(op, SMK_FSTRANS, strlen(SMK_FSTRANS)) == 0) {
++ op += strlen(SMK_FSTRANS);
++ nsp = smk_import(op, 0);
++ if (nsp != NULL) {
++ sp->smk_root = nsp;
++ transmute = 1;
++ }
+ }
+ }
+
+@@ -380,11 +391,15 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+ * Initialize the root inode.
+ */
+ isp = inode->i_security;
+- if (isp == NULL)
++ if (inode->i_security == NULL) {
+ inode->i_security = new_inode_smack(sp->smk_root);
+- else
++ isp = inode->i_security;
++ } else
+ isp->smk_inode = sp->smk_root;
+
++ if (transmute)
++ isp->smk_flags |= SMK_INODE_TRANSMUTE;
++
+ return 0;
+ }
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0004-Smack-Fix-possible-NULL-pointer-dereference-at-smk_n.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0004-Smack-Fix-possible-NULL-pointer-dereference-at-smk_n.patch
new file mode 100644
index 0000000..a0430ec
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0004-Smack-Fix-possible-NULL-pointer-dereference-at-smk_n.patch
@@ -0,0 +1,29 @@
+From a7982ea90c9233c737923a9361229bbfc63caa2e Mon Sep 17 00:00:00 2001
+From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
+Date: Mon, 27 May 2013 20:11:27 +0900
+Subject: [PATCH 04/54] Smack: Fix possible NULL pointer dereference at
+ smk_netlbl_mls()
+
+netlbl_secattr_catmap_alloc(GFP_ATOMIC) can return NULL.
+
+Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
+---
+ security/smack/smack_access.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index 53f2327..6a0377f 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -403,6 +403,8 @@ int smk_netlbl_mls(int level, char *catset, struct netlbl_lsm_secattr *sap,
+ sap->flags |= NETLBL_SECATTR_MLS_CAT;
+ sap->attr.mls.lvl = level;
+ sap->attr.mls.cat = netlbl_secattr_catmap_alloc(GFP_ATOMIC);
++ if (!sap->attr.mls.cat)
++ return -ENOMEM;
+ sap->attr.mls.cat->startbit = 0;
+
+ for (cat = 1, cp = catset, byte = 0; byte < len; cp++, byte++)
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0005-Smack-Fix-the-bug-smackcipso-can-t-set-CIPSO-correct.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0005-Smack-Fix-the-bug-smackcipso-can-t-set-CIPSO-correct.patch
new file mode 100644
index 0000000..d50aa45
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0005-Smack-Fix-the-bug-smackcipso-can-t-set-CIPSO-correct.patch
@@ -0,0 +1,36 @@
+From 99c1ba83e749446ef633197f2f78642171baa30d Mon Sep 17 00:00:00 2001
+From: "Passion,Zhao" <passion.zhao@intel.com>
+Date: Mon, 3 Jun 2013 11:42:24 +0800
+Subject: [PATCH 05/54] Smack: Fix the bug smackcipso can't set CIPSO correctly
+
+Bug report: https://tizendev.org/bugs/browse/TDIS-3891
+
+The reason is userspace libsmack only use "smackfs/cipso2" long-label interface,
+but the code's logical is still for orginal fixed length label. Now update
+smack_cipso_apply() to support flexible label (<=256 including tailing '\0')
+
+There is also a bug in kernel/security/smack/smackfs.c:
+When smk_set_cipso() parsing the CIPSO setting from userspace, the offset of
+CIPSO level should be "strlen(label)+1" instead of "strlen(label)"
+
+Signed-off-by: Passion,Zhao <passion.zhao@intel.com>
+---
+ security/smack/smackfs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 3c79cba..ab16703 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -881,7 +881,7 @@ static ssize_t smk_set_cipso(struct file *file, const char __user *buf,
+ if (format == SMK_FIXED24_FMT)
+ rule += SMK_LABELLEN;
+ else
+- rule += strlen(skp->smk_known);
++ rule += strlen(skp->smk_known) + 1;
+
+ ret = sscanf(rule, "%d", &maplevel);
+ if (ret != 1 || maplevel > SMACK_CIPSO_MAXLEVEL)
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0006-Security-Add-Hook-to-test-if-the-particular-xattr-is.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0006-Security-Add-Hook-to-test-if-the-particular-xattr-is.patch
new file mode 100644
index 0000000..2539ff6
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0006-Security-Add-Hook-to-test-if-the-particular-xattr-is.patch
@@ -0,0 +1,170 @@
+From 2a47b333efc3a2cb768eaba9d35e1467b3bc6211 Mon Sep 17 00:00:00 2001
+From: David Quigley <dpquigl@davequigley.com>
+Date: Wed, 22 May 2013 12:50:35 -0400
+Subject: [PATCH 06/54] Security: Add Hook to test if the particular xattr is
+ part of a MAC model.
+
+The interface to request security labels from user space is the xattr
+interface. When requesting the security label from an NFS server it is
+important to make sure the requested xattr actually is a MAC label. This allows
+us to make sure that we get the desired semantics from the attribute instead of
+something else such as capabilities or a time based LSM.
+
+Acked-by: Eric Paris <eparis@redhat.com>
+Acked-by: James Morris <james.l.morris@oracle.com>
+Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com>
+Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg>
+Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg>
+Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg>
+Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
+---
+ include/linux/security.h | 14 ++++++++++++++
+ security/capability.c | 6 ++++++
+ security/security.c | 6 ++++++
+ security/selinux/hooks.c | 6 ++++++
+ security/smack/smack_lsm.c | 11 +++++++++++
+ 5 files changed, 43 insertions(+)
+
+diff --git a/include/linux/security.h b/include/linux/security.h
+index 4686491..1d8fe3c 100644
+--- a/include/linux/security.h
++++ b/include/linux/security.h
+@@ -1313,6 +1313,13 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
+ * @pages contains the number of pages.
+ * Return 0 if permission is granted.
+ *
++ * @ismaclabel:
++ * Check if the extended attribute specified by @name
++ * represents a MAC label. Returns 1 if name is a MAC
++ * attribute otherwise returns 0.
++ * @name full extended attribute name to check against
++ * LSM as a MAC label.
++ *
+ * @secid_to_secctx:
+ * Convert secid to security context. If secdata is NULL the length of
+ * the result will be returned in seclen, but no secdata will be returned.
+@@ -1590,6 +1597,7 @@ struct security_operations {
+
+ int (*getprocattr) (struct task_struct *p, char *name, char **value);
+ int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
++ int (*ismaclabel) (const char *name);
+ int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
+ int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
+ void (*release_secctx) (char *secdata, u32 seclen);
+@@ -1840,6 +1848,7 @@ void security_d_instantiate(struct dentry *dentry, struct inode *inode);
+ int security_getprocattr(struct task_struct *p, char *name, char **value);
+ int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
+ int security_netlink_send(struct sock *sk, struct sk_buff *skb);
++int security_ismaclabel(const char *name);
+ int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
+ int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
+ void security_release_secctx(char *secdata, u32 seclen);
+@@ -2520,6 +2529,11 @@ static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
+ return cap_netlink_send(sk, skb);
+ }
+
++static inline int security_ismaclabel(const char *name)
++{
++ return 0;
++}
++
+ static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+ {
+ return -EOPNOTSUPP;
+diff --git a/security/capability.c b/security/capability.c
+index 1728d4e..26e0d3d 100644
+--- a/security/capability.c
++++ b/security/capability.c
+@@ -816,6 +816,11 @@ static int cap_setprocattr(struct task_struct *p, char *name, void *value,
+ return -EINVAL;
+ }
+
++static int cap_ismaclabel(const char *name)
++{
++ return 0;
++}
++
+ static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+ {
+ return -EOPNOTSUPP;
+@@ -1034,6 +1039,7 @@ void __init security_fixup_ops(struct security_operations *ops)
+ set_to_cap_if_null(ops, d_instantiate);
+ set_to_cap_if_null(ops, getprocattr);
+ set_to_cap_if_null(ops, setprocattr);
++ set_to_cap_if_null(ops, ismaclabel);
+ set_to_cap_if_null(ops, secid_to_secctx);
+ set_to_cap_if_null(ops, secctx_to_secid);
+ set_to_cap_if_null(ops, release_secctx);
+diff --git a/security/security.c b/security/security.c
+index a3dce87..bf919ce 100644
+--- a/security/security.c
++++ b/security/security.c
+@@ -1047,6 +1047,12 @@ int security_netlink_send(struct sock *sk, struct sk_buff *skb)
+ return security_ops->netlink_send(sk, skb);
+ }
+
++int security_ismaclabel(const char *name)
++{
++ return security_ops->ismaclabel(name);
++}
++EXPORT_SYMBOL(security_ismaclabel);
++
+ int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+ {
+ return security_ops->secid_to_secctx(secid, secdata, seclen);
+diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
+index a7096e1..d2f4381 100644
+--- a/security/selinux/hooks.c
++++ b/security/selinux/hooks.c
+@@ -5526,6 +5526,11 @@ abort_change:
+ return error;
+ }
+
++static int selinux_ismaclabel(const char *name)
++{
++ return (strcmp(name, XATTR_SELINUX_SUFFIX) == 0);
++}
++
+ static int selinux_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+ {
+ return security_sid_to_context(secid, secdata, seclen);
+@@ -5763,6 +5768,7 @@ static struct security_operations selinux_ops = {
+ .getprocattr = selinux_getprocattr,
+ .setprocattr = selinux_setprocattr,
+
++ .ismaclabel = selinux_ismaclabel,
+ .secid_to_secctx = selinux_secid_to_secctx,
+ .secctx_to_secid = selinux_secctx_to_secid,
+ .release_secctx = selinux_release_secctx,
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 6a08330..3f7682a 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3640,6 +3640,16 @@ static void smack_audit_rule_free(void *vrule)
+ #endif /* CONFIG_AUDIT */
+
+ /**
++ * smack_ismaclabel - check if xattr @name references a smack MAC label
++ * @name: Full xattr name to check.
++ */
++static int smack_ismaclabel(const char *name)
++{
++ return (strcmp(name, XATTR_SMACK_SUFFIX) == 0);
++}
++
++
++/**
+ * smack_secid_to_secctx - return the smack label for a secid
+ * @secid: incoming integer
+ * @secdata: destination
+@@ -3836,6 +3846,7 @@ struct security_operations smack_ops = {
+ .audit_rule_free = smack_audit_rule_free,
+ #endif /* CONFIG_AUDIT */
+
++ .ismaclabel = smack_ismaclabel,
+ .secid_to_secctx = smack_secid_to_secctx,
+ .secctx_to_secid = smack_secctx_to_secid,
+ .release_secctx = smack_release_secctx,
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0007-xattr-Constify-name-member-of-struct-xattr.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0007-xattr-Constify-name-member-of-struct-xattr.patch
new file mode 100644
index 0000000..01e1e95
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0007-xattr-Constify-name-member-of-struct-xattr.patch
@@ -0,0 +1,239 @@
+From fe82cc13962e6dbf81dec4093e7dc947b296a988 Mon Sep 17 00:00:00 2001
+From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
+Date: Thu, 25 Jul 2013 05:44:02 +0900
+Subject: [PATCH 07/54] xattr: Constify ->name member of "struct xattr".
+
+Since everybody sets kstrdup()ed constant string to "struct xattr"->name but
+nobody modifies "struct xattr"->name , we can omit kstrdup() and its failure
+checking by constifying ->name member of "struct xattr".
+
+Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
+Reviewed-by: Joel Becker <jlbec@evilplan.org> [ocfs2]
+Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
+Acked-by: Casey Schaufler <casey@schaufler-ca.com>
+Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
+Reviewed-by: Paul Moore <paul@paul-moore.com>
+Tested-by: Paul Moore <paul@paul-moore.com>
+Acked-by: Eric Paris <eparis@redhat.com>
+Signed-off-by: James Morris <james.l.morris@oracle.com>
+---
+ fs/ocfs2/xattr.h | 2 +-
+ include/linux/security.h | 8 ++++----
+ include/linux/xattr.h | 2 +-
+ include/uapi/linux/reiserfs_xattr.h | 2 +-
+ security/capability.c | 2 +-
+ security/integrity/evm/evm_main.c | 2 +-
+ security/security.c | 8 +++-----
+ security/selinux/hooks.c | 17 ++++++-----------
+ security/smack/smack_lsm.c | 9 +++------
+ 9 files changed, 21 insertions(+), 31 deletions(-)
+
+diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h
+index e5c7f15..19f134e 100644
+--- a/fs/ocfs2/xattr.h
++++ b/fs/ocfs2/xattr.h
+@@ -32,7 +32,7 @@ enum ocfs2_xattr_type {
+
+ struct ocfs2_security_xattr_info {
+ int enable;
+- char *name;
++ const char *name;
+ void *value;
+ size_t value_len;
+ };
+diff --git a/include/linux/security.h b/include/linux/security.h
+index 1d8fe3c..0f246d4 100644
+--- a/include/linux/security.h
++++ b/include/linux/security.h
+@@ -1472,7 +1472,7 @@ struct security_operations {
+ int (*inode_alloc_security) (struct inode *inode);
+ void (*inode_free_security) (struct inode *inode);
+ int (*inode_init_security) (struct inode *inode, struct inode *dir,
+- const struct qstr *qstr, char **name,
++ const struct qstr *qstr, const char **name,
+ void **value, size_t *len);
+ int (*inode_create) (struct inode *dir,
+ struct dentry *dentry, umode_t mode);
+@@ -1744,7 +1744,7 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr,
+ initxattrs initxattrs, void *fs_data);
+ int security_old_inode_init_security(struct inode *inode, struct inode *dir,
+- const struct qstr *qstr, char **name,
++ const struct qstr *qstr, const char **name,
+ void **value, size_t *len);
+ int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
+ int security_inode_link(struct dentry *old_dentry, struct inode *dir,
+@@ -2056,8 +2056,8 @@ static inline int security_inode_init_security(struct inode *inode,
+ static inline int security_old_inode_init_security(struct inode *inode,
+ struct inode *dir,
+ const struct qstr *qstr,
+- char **name, void **value,
+- size_t *len)
++ const char **name,
++ void **value, size_t *len)
+ {
+ return -EOPNOTSUPP;
+ }
+diff --git a/include/linux/xattr.h b/include/linux/xattr.h
+index fdbafc6..91b0a68 100644
+--- a/include/linux/xattr.h
++++ b/include/linux/xattr.h
+@@ -31,7 +31,7 @@ struct xattr_handler {
+ };
+
+ struct xattr {
+- char *name;
++ const char *name;
+ void *value;
+ size_t value_len;
+ };
+diff --git a/include/uapi/linux/reiserfs_xattr.h b/include/uapi/linux/reiserfs_xattr.h
+index d8ce17c..38fdd64 100644
+--- a/include/uapi/linux/reiserfs_xattr.h
++++ b/include/uapi/linux/reiserfs_xattr.h
+@@ -16,7 +16,7 @@ struct reiserfs_xattr_header {
+ };
+
+ struct reiserfs_security_handle {
+- char *name;
++ const char *name;
+ void *value;
+ size_t length;
+ };
+diff --git a/security/capability.c b/security/capability.c
+index 26e0d3d..432e8af 100644
+--- a/security/capability.c
++++ b/security/capability.c
+@@ -119,7 +119,7 @@ static void cap_inode_free_security(struct inode *inode)
+ }
+
+ static int cap_inode_init_security(struct inode *inode, struct inode *dir,
+- const struct qstr *qstr, char **name,
++ const struct qstr *qstr, const char **name,
+ void **value, size_t *len)
+ {
+ return -EOPNOTSUPP;
+diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
+index cdbde17..2787080 100644
+--- a/security/integrity/evm/evm_main.c
++++ b/security/integrity/evm/evm_main.c
+@@ -405,7 +405,7 @@ int evm_inode_init_security(struct inode *inode,
+
+ evm_xattr->value = xattr_data;
+ evm_xattr->value_len = sizeof(*xattr_data);
+- evm_xattr->name = kstrdup(XATTR_EVM_SUFFIX, GFP_NOFS);
++ evm_xattr->name = XATTR_EVM_SUFFIX;
+ return 0;
+ out:
+ kfree(xattr_data);
+diff --git a/security/security.c b/security/security.c
+index bf919ce..7813fd8 100644
+--- a/security/security.c
++++ b/security/security.c
+@@ -335,10 +335,10 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
+ if (unlikely(IS_PRIVATE(inode)))
+ return 0;
+
+- memset(new_xattrs, 0, sizeof new_xattrs);
+ if (!initxattrs)
+ return security_ops->inode_init_security(inode, dir, qstr,
+ NULL, NULL, NULL);
++ memset(new_xattrs, 0, sizeof(new_xattrs));
+ lsm_xattr = new_xattrs;
+ ret = security_ops->inode_init_security(inode, dir, qstr,
+ &lsm_xattr->name,
+@@ -353,16 +353,14 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
+ goto out;
+ ret = initxattrs(inode, new_xattrs, fs_data);
+ out:
+- for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
+- kfree(xattr->name);
++ for (xattr = new_xattrs; xattr->value != NULL; xattr++)
+ kfree(xattr->value);
+- }
+ return (ret == -EOPNOTSUPP) ? 0 : ret;
+ }
+ EXPORT_SYMBOL(security_inode_init_security);
+
+ int security_old_inode_init_security(struct inode *inode, struct inode *dir,
+- const struct qstr *qstr, char **name,
++ const struct qstr *qstr, const char **name,
+ void **value, size_t *len)
+ {
+ if (unlikely(IS_PRIVATE(inode)))
+diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
+index d2f4381..0c47e2c 100644
+--- a/security/selinux/hooks.c
++++ b/security/selinux/hooks.c
+@@ -2533,7 +2533,8 @@ static void selinux_inode_free_security(struct inode *inode)
+ }
+
+ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
+- const struct qstr *qstr, char **name,
++ const struct qstr *qstr,
++ const char **name,
+ void **value, size_t *len)
+ {
+ const struct task_security_struct *tsec = current_security();
+@@ -2541,7 +2542,7 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
+ struct superblock_security_struct *sbsec;
+ u32 sid, newsid, clen;
+ int rc;
+- char *namep = NULL, *context;
++ char *context;
+
+ dsec = dir->i_security;
+ sbsec = dir->i_sb->s_security;
+@@ -2577,19 +2578,13 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
+ if (!ss_initialized || !(sbsec->flags & SE_SBLABELSUPP))
+ return -EOPNOTSUPP;
+
+- if (name) {
+- namep = kstrdup(XATTR_SELINUX_SUFFIX, GFP_NOFS);
+- if (!namep)
+- return -ENOMEM;
+- *name = namep;
+- }
++ if (name)
++ *name = XATTR_SELINUX_SUFFIX;
+
+ if (value && len) {
+ rc = security_sid_to_context_force(newsid, &context, &clen);
+- if (rc) {
+- kfree(namep);
++ if (rc)
+ return rc;
+- }
+ *value = context;
+ *len = clen;
+ }
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 3f7682a..a113a77 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -582,7 +582,7 @@ static void smack_inode_free_security(struct inode *inode)
+ * Returns 0 if it all works out, -ENOMEM if there's no memory
+ */
+ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+- const struct qstr *qstr, char **name,
++ const struct qstr *qstr, const char **name,
+ void **value, size_t *len)
+ {
+ struct inode_smack *issp = inode->i_security;
+@@ -591,11 +591,8 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ char *dsp = smk_of_inode(dir);
+ int may;
+
+- if (name) {
+- *name = kstrdup(XATTR_SMACK_SUFFIX, GFP_NOFS);
+- if (*name == NULL)
+- return -ENOMEM;
+- }
++ if (name)
++ *name = XATTR_SMACK_SUFFIX;
+
+ if (value) {
+ rcu_read_lock();
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0008-security-smack-fix-memleak-in-smk_write_rules_list.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0008-security-smack-fix-memleak-in-smk_write_rules_list.patch
new file mode 100644
index 0000000..85e2c6f
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0008-security-smack-fix-memleak-in-smk_write_rules_list.patch
@@ -0,0 +1,89 @@
+From ebd488438bac4d71d95ed21281fce2b429804662 Mon Sep 17 00:00:00 2001
+From: Tomasz Stanislawski <t.stanislaws@samsung.com>
+Date: Thu, 6 Jun 2013 09:30:50 +0200
+Subject: [PATCH 08/54] security: smack: fix memleak in smk_write_rules_list()
+
+The smack_parsed_rule structure is allocated. If a rule is successfully
+installed then the last reference to the object is lost. This patch fixes this
+leak. Moreover smack_parsed_rule is allocated on stack because it no longer
+needed ofter smk_write_rules_list() is finished.
+
+Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
+---
+ security/smack/smackfs.c | 33 +++++++++++----------------------
+ 1 file changed, 11 insertions(+), 22 deletions(-)
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index ab16703..269b270 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -447,7 +447,7 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
+ struct list_head *rule_list,
+ struct mutex *rule_lock, int format)
+ {
+- struct smack_parsed_rule *rule;
++ struct smack_parsed_rule rule;
+ char *data;
+ int datalen;
+ int rc = -EINVAL;
+@@ -479,47 +479,36 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
+ goto out;
+ }
+
+- rule = kzalloc(sizeof(*rule), GFP_KERNEL);
+- if (rule == NULL) {
+- rc = -ENOMEM;
+- goto out;
+- }
+-
+ if (format == SMK_LONG_FMT) {
+ /*
+ * Be sure the data string is terminated.
+ */
+ data[count] = '\0';
+- if (smk_parse_long_rule(data, rule, 1, 0))
+- goto out_free_rule;
++ if (smk_parse_long_rule(data, &rule, 1, 0))
++ goto out;
+ } else if (format == SMK_CHANGE_FMT) {
+ data[count] = '\0';
+- if (smk_parse_long_rule(data, rule, 1, 1))
+- goto out_free_rule;
++ if (smk_parse_long_rule(data, &rule, 1, 1))
++ goto out;
+ } else {
+ /*
+ * More on the minor hack for backward compatibility
+ */
+ if (count == (SMK_OLOADLEN))
+ data[SMK_OLOADLEN] = '-';
+- if (smk_parse_rule(data, rule, 1))
+- goto out_free_rule;
++ if (smk_parse_rule(data, &rule, 1))
++ goto out;
+ }
+
+ if (rule_list == NULL) {
+ load = 1;
+- rule_list = &rule->smk_subject->smk_rules;
+- rule_lock = &rule->smk_subject->smk_rules_lock;
++ rule_list = &rule.smk_subject->smk_rules;
++ rule_lock = &rule.smk_subject->smk_rules_lock;
+ }
+
+- rc = smk_set_access(rule, rule_list, rule_lock, load);
+- if (rc == 0) {
++ rc = smk_set_access(&rule, rule_list, rule_lock, load);
++ if (rc == 0)
+ rc = count;
+- goto out;
+- }
+-
+-out_free_rule:
+- kfree(rule);
+ out:
+ kfree(data);
+ return rc;
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0009-security-smack-add-a-hash-table-to-quicken-smk_find_.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0009-security-smack-add-a-hash-table-to-quicken-smk_find_.patch
new file mode 100644
index 0000000..f0ec92a
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0009-security-smack-add-a-hash-table-to-quicken-smk_find_.patch
@@ -0,0 +1,166 @@
+From 505330bc05798436b7be090167ff0dfcffea973b Mon Sep 17 00:00:00 2001
+From: Tomasz Stanislawski <t.stanislaws@samsung.com>
+Date: Tue, 11 Jun 2013 14:55:13 +0200
+Subject: [PATCH 09/54] security: smack: add a hash table to quicken
+ smk_find_entry()
+
+Accepted for the smack-next tree after changing the number of
+slots from 128 to 16.
+
+This patch adds a hash table to quicken searching of a smack label by its name.
+
+Basically, the patch improves performance of SMACK initialization. Parsing of
+rules involves translation from a string to a smack_known (aka label) entity
+which is done in smk_find_entry().
+
+The current implementation of the function iterates over a global list of
+smack_known resulting in O(N) complexity for smk_find_entry(). The total
+complexity of SMACK initialization becomes O(rules * labels). Therefore it
+scales quadratically with a complexity of a system.
+
+Applying the patch reduced the complexity of smk_find_entry() to O(1) as long
+as number of label is in hundreds. If the number of labels is increased please
+update SMACK_HASH_SLOTS constant defined in security/smack/smack.h. Introducing
+the configuration of this constant with Kconfig or cmdline might be a good
+idea.
+
+The size of the hash table was adjusted experimentally. The rule set used by
+TIZEN contains circa 17K rules for 500 labels. The table above contains
+results of SMACK initialization using 'time smackctl apply' bash command.
+The 'Ref' is a kernel without this patch applied. The consecutive values
+refers to value of SMACK_HASH_SLOTS. Every measurement was repeated three
+times to reduce noise.
+
+ | Ref | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 | 512
+--------------------------------------------------------------------------------------------
+Run1 | 1.156 | 1.096 | 0.883 | 0.764 | 0.692 | 0.667 | 0.649 | 0.633 | 0.634 | 0.629 | 0.620
+Run2 | 1.156 | 1.111 | 0.885 | 0.764 | 0.694 | 0.661 | 0.649 | 0.651 | 0.634 | 0.638 | 0.623
+Run3 | 1.160 | 1.107 | 0.886 | 0.764 | 0.694 | 0.671 | 0.661 | 0.638 | 0.631 | 0.624 | 0.638
+AVG | 1.157 | 1.105 | 0.885 | 0.764 | 0.693 | 0.666 | 0.653 | 0.641 | 0.633 | 0.630 | 0.627
+
+Surprisingly, a single hlist is slightly faster than a double-linked list.
+The speed-up saturates near 64 slots. Therefore I chose value 128 to provide
+some margin if more labels were used.
+It looks that IO becomes a new bottleneck.
+
+Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
+---
+ security/smack/smack.h | 5 +++++
+ security/smack/smack_access.c | 29 ++++++++++++++++++++++++++---
+ security/smack/smack_lsm.c | 12 ++++++------
+ 3 files changed, 37 insertions(+), 9 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index 339614c..e80597a 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -53,6 +53,7 @@
+ */
+ struct smack_known {
+ struct list_head list;
++ struct hlist_node smk_hashed;
+ char *smk_known;
+ u32 smk_secid;
+ struct netlbl_lsm_secattr smk_netlabel; /* on wire labels */
+@@ -222,6 +223,7 @@ char *smk_parse_smack(const char *string, int len);
+ int smk_netlbl_mls(int, char *, struct netlbl_lsm_secattr *, int);
+ char *smk_import(const char *, int);
+ struct smack_known *smk_import_entry(const char *, int);
++void smk_insert_entry(struct smack_known *skp);
+ struct smack_known *smk_find_entry(const char *);
+ u32 smack_to_secid(const char *);
+
+@@ -247,6 +249,9 @@ extern struct list_head smk_netlbladdr_list;
+
+ extern struct security_operations smack_ops;
+
++#define SMACK_HASH_SLOTS 16
++extern struct hlist_head smack_known_hash[SMACK_HASH_SLOTS];
++
+ /*
+ * Is the directory transmuting?
+ */
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index 6a0377f..b3b59b1 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -325,6 +325,25 @@ void smack_log(char *subject_label, char *object_label, int request,
+
+ DEFINE_MUTEX(smack_known_lock);
+
++struct hlist_head smack_known_hash[SMACK_HASH_SLOTS];
++
++/**
++ * smk_insert_entry - insert a smack label into a hash map,
++ *
++ * this function must be called under smack_known_lock
++ */
++void smk_insert_entry(struct smack_known *skp)
++{
++ unsigned int hash;
++ struct hlist_head *head;
++
++ hash = full_name_hash(skp->smk_known, strlen(skp->smk_known));
++ head = &smack_known_hash[hash & (SMACK_HASH_SLOTS - 1)];
++
++ hlist_add_head_rcu(&skp->smk_hashed, head);
++ list_add_rcu(&skp->list, &smack_known_list);
++}
++
+ /**
+ * smk_find_entry - find a label on the list, return the list entry
+ * @string: a text string that might be a Smack label
+@@ -334,12 +353,16 @@ DEFINE_MUTEX(smack_known_lock);
+ */
+ struct smack_known *smk_find_entry(const char *string)
+ {
++ unsigned int hash;
++ struct hlist_head *head;
+ struct smack_known *skp;
+
+- list_for_each_entry_rcu(skp, &smack_known_list, list) {
++ hash = full_name_hash(string, strlen(string));
++ head = &smack_known_hash[hash & (SMACK_HASH_SLOTS - 1)];
++
++ hlist_for_each_entry_rcu(skp, head, smk_hashed)
+ if (strcmp(skp->smk_known, string) == 0)
+ return skp;
+- }
+
+ return NULL;
+ }
+@@ -475,7 +498,7 @@ struct smack_known *smk_import_entry(const char *string, int len)
+ * Make sure that the entry is actually
+ * filled before putting it on the list.
+ */
+- list_add_rcu(&skp->list, &smack_known_list);
++ smk_insert_entry(skp);
+ goto unlockout;
+ }
+ /*
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index a113a77..f70a0fa 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3876,12 +3876,12 @@ static __init void init_smack_known_list(void)
+ /*
+ * Create the known labels list
+ */
+- list_add(&smack_known_huh.list, &smack_known_list);
+- list_add(&smack_known_hat.list, &smack_known_list);
+- list_add(&smack_known_star.list, &smack_known_list);
+- list_add(&smack_known_floor.list, &smack_known_list);
+- list_add(&smack_known_invalid.list, &smack_known_list);
+- list_add(&smack_known_web.list, &smack_known_list);
++ smk_insert_entry(&smack_known_huh);
++ smk_insert_entry(&smack_known_hat);
++ smk_insert_entry(&smack_known_star);
++ smk_insert_entry(&smack_known_floor);
++ smk_insert_entry(&smack_known_invalid);
++ smk_insert_entry(&smack_known_web);
+ }
+
+ /**
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0010-Smack-network-label-match-fix.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0010-Smack-network-label-match-fix.patch
new file mode 100644
index 0000000..bfb9ad0
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0010-Smack-network-label-match-fix.patch
@@ -0,0 +1,110 @@
+From 5ef1f5e8b97be9a415ad0828202d5ea03af377c7 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Fri, 28 Jun 2013 13:47:07 -0700
+Subject: [PATCH 10/54] Smack: network label match fix
+
+The Smack code that matches incoming CIPSO tags with Smack labels
+reaches through the NetLabel interfaces and compares the network
+data with the CIPSO header associated with a Smack label. This was
+done in a ill advised attempt to optimize performance. It works
+so long as the categories fit in a single capset, but this isn't
+always the case.
+
+This patch changes the Smack code to use the appropriate NetLabel
+interfaces to compare the incoming CIPSO header with the CIPSO
+header associated with a label. It will always match the CIPSO
+headers correctly.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack.h | 8 ++++++--
+ security/smack/smack_lsm.c | 30 ++++++++++++++++++++++++------
+ security/smack/smackfs.c | 2 +-
+ 3 files changed, 31 insertions(+), 9 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index e80597a..076b8e8 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -168,9 +168,13 @@ struct smk_port_label {
+ #define SMACK_CIPSO_DOI_INVALID -1 /* Not a DOI */
+ #define SMACK_CIPSO_DIRECT_DEFAULT 250 /* Arbitrary */
+ #define SMACK_CIPSO_MAPPED_DEFAULT 251 /* Also arbitrary */
+-#define SMACK_CIPSO_MAXCATVAL 63 /* Bigger gets harder */
+ #define SMACK_CIPSO_MAXLEVEL 255 /* CIPSO 2.2 standard */
+-#define SMACK_CIPSO_MAXCATNUM 239 /* CIPSO 2.2 standard */
++/*
++ * CIPSO 2.2 standard is 239, but Smack wants to use the
++ * categories in a structured way that limits the value to
++ * the bits in 23 bytes, hence the unusual number.
++ */
++#define SMACK_CIPSO_MAXCATNUM 184 /* 23 * 8 */
+
+ /*
+ * Flag for transmute access
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index f70a0fa..19de5e2 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3063,6 +3063,8 @@ static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ {
+ struct smack_known *skp;
+ int found = 0;
++ int acat;
++ int kcat;
+
+ if ((sap->flags & NETLBL_SECATTR_MLS_LVL) != 0) {
+ /*
+@@ -3079,12 +3081,28 @@ static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ list_for_each_entry(skp, &smack_known_list, list) {
+ if (sap->attr.mls.lvl != skp->smk_netlabel.attr.mls.lvl)
+ continue;
+- if (memcmp(sap->attr.mls.cat,
+- skp->smk_netlabel.attr.mls.cat,
+- SMK_CIPSOLEN) != 0)
+- continue;
+- found = 1;
+- break;
++ /*
++ * Compare the catsets. Use the netlbl APIs.
++ */
++ if ((sap->flags & NETLBL_SECATTR_MLS_CAT) == 0) {
++ if ((skp->smk_netlabel.flags &
++ NETLBL_SECATTR_MLS_CAT) == 0)
++ found = 1;
++ break;
++ }
++ for (acat = -1, kcat = -1; acat == kcat; ) {
++ acat = netlbl_secattr_catmap_walk(
++ sap->attr.mls.cat, acat + 1);
++ kcat = netlbl_secattr_catmap_walk(
++ skp->smk_netlabel.attr.mls.cat,
++ kcat + 1);
++ if (acat < 0 || kcat < 0)
++ break;
++ }
++ if (acat == kcat) {
++ found = 1;
++ break;
++ }
+ }
+ rcu_read_unlock();
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 269b270..a07e93f 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -890,7 +890,7 @@ static ssize_t smk_set_cipso(struct file *file, const char __user *buf,
+ for (i = 0; i < catlen; i++) {
+ rule += SMK_DIGITLEN;
+ ret = sscanf(rule, "%u", &cat);
+- if (ret != 1 || cat > SMACK_CIPSO_MAXCATVAL)
++ if (ret != 1 || cat > SMACK_CIPSO_MAXCATNUM)
+ goto out;
+
+ smack_catset_bit(cat, mapcatset);
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0011-Smack-IPv6-casting-error-fix-for-3.11.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0011-Smack-IPv6-casting-error-fix-for-3.11.patch
new file mode 100644
index 0000000..617715b
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0011-Smack-IPv6-casting-error-fix-for-3.11.patch
@@ -0,0 +1,105 @@
+From e1a1ad9641f7721edb0f52f0280cfc699ba4690c Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Mon, 5 Aug 2013 13:21:22 -0700
+Subject: [PATCH 11/54] Smack: IPv6 casting error fix for 3.11
+
+The original implementation of the Smack IPv6 port based
+local controls works most of the time using a sockaddr as
+a temporary variable, but not always as it overflows in
+some circumstances. The correct data is a sockaddr_in6.
+A struct sockaddr isn't as large as a struct sockaddr_in6.
+There would need to be casting one way or the other. This
+patch gets it the right way.
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+Signed-off-by: James Morris <james.l.morris@oracle.com>
+---
+ security/smack/smack_lsm.c | 24 +++++++++++-------------
+ 1 file changed, 11 insertions(+), 13 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 19de5e2..8825375 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1995,12 +1995,11 @@ static void smk_ipv6_port_label(struct socket *sock, struct sockaddr *address)
+ *
+ * Create or update the port list entry
+ */
+-static int smk_ipv6_port_check(struct sock *sk, struct sockaddr *address,
++static int smk_ipv6_port_check(struct sock *sk, struct sockaddr_in6 *address,
+ int act)
+ {
+ __be16 *bep;
+ __be32 *be32p;
+- struct sockaddr_in6 *addr6;
+ struct smk_port_label *spp;
+ struct socket_smack *ssp = sk->sk_security;
+ struct smack_known *skp;
+@@ -2022,10 +2021,9 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr *address,
+ /*
+ * Get the IP address and port from the address.
+ */
+- addr6 = (struct sockaddr_in6 *)address;
+- port = ntohs(addr6->sin6_port);
+- bep = (__be16 *)(&addr6->sin6_addr);
+- be32p = (__be32 *)(&addr6->sin6_addr);
++ port = ntohs(address->sin6_port);
++ bep = (__be16 *)(&address->sin6_addr);
++ be32p = (__be32 *)(&address->sin6_addr);
+
+ /*
+ * It's remote, so port lookup does no good.
+@@ -2057,9 +2055,9 @@ auditout:
+ ad.a.u.net->family = sk->sk_family;
+ ad.a.u.net->dport = port;
+ if (act == SMK_RECEIVING)
+- ad.a.u.net->v6info.saddr = addr6->sin6_addr;
++ ad.a.u.net->v6info.saddr = address->sin6_addr;
+ else
+- ad.a.u.net->v6info.daddr = addr6->sin6_addr;
++ ad.a.u.net->v6info.daddr = address->sin6_addr;
+ #endif
+ return smk_access(skp, object, MAY_WRITE, &ad);
+ }
+@@ -2198,7 +2196,8 @@ static int smack_socket_connect(struct socket *sock, struct sockaddr *sap,
+ case PF_INET6:
+ if (addrlen < sizeof(struct sockaddr_in6))
+ return -EINVAL;
+- rc = smk_ipv6_port_check(sock->sk, sap, SMK_CONNECTING);
++ rc = smk_ipv6_port_check(sock->sk, (struct sockaddr_in6 *)sap,
++ SMK_CONNECTING);
+ break;
+ }
+ return rc;
+@@ -3031,7 +3030,7 @@ static int smack_socket_sendmsg(struct socket *sock, struct msghdr *msg,
+ int size)
+ {
+ struct sockaddr_in *sip = (struct sockaddr_in *) msg->msg_name;
+- struct sockaddr *sap = (struct sockaddr *) msg->msg_name;
++ struct sockaddr_in6 *sap = (struct sockaddr_in6 *) msg->msg_name;
+ int rc = 0;
+
+ /*
+@@ -3136,9 +3135,8 @@ static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ return smack_net_ambient;
+ }
+
+-static int smk_skb_to_addr_ipv6(struct sk_buff *skb, struct sockaddr *sap)
++static int smk_skb_to_addr_ipv6(struct sk_buff *skb, struct sockaddr_in6 *sip)
+ {
+- struct sockaddr_in6 *sip = (struct sockaddr_in6 *)sap;
+ u8 nexthdr;
+ int offset;
+ int proto = -EINVAL;
+@@ -3196,7 +3194,7 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ struct netlbl_lsm_secattr secattr;
+ struct socket_smack *ssp = sk->sk_security;
+ struct smack_known *skp;
+- struct sockaddr sadd;
++ struct sockaddr_in6 sadd;
+ int rc = 0;
+ struct smk_audit_info ad;
+ #ifdef CONFIG_AUDIT
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0012-Smack-parse-multiple-rules-per-write-to-load2-up-to-.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0012-Smack-parse-multiple-rules-per-write-to-load2-up-to-.patch
new file mode 100644
index 0000000..b11e14e
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0012-Smack-parse-multiple-rules-per-write-to-load2-up-to-.patch
@@ -0,0 +1,252 @@
+From af18e4fa19be1e914781acd5a9e3ad4ee62b4fac Mon Sep 17 00:00:00 2001
+From: Rafal Krypa <r.krypa@samsung.com>
+Date: Fri, 9 Aug 2013 11:47:07 +0200
+Subject: [PATCH 12/54] Smack: parse multiple rules per write to load2, up to
+ PAGE_SIZE-1 bytes
+
+Smack interface for loading rules has always parsed only single rule from
+data written to it. This requires user program to call one write() per
+each rule it wants to load.
+This change makes it possible to write multiple rules, separated by new
+line character. Smack will load at most PAGE_SIZE-1 characters and properly
+return number of processed bytes. In case when user buffer is larger, it
+will be additionally truncated. All characters after last \n will not get
+parsed to avoid partial rule near input buffer boundary.
+
+Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
+---
+ security/smack/smackfs.c | 167 +++++++++++++++++++++++------------------------
+ 1 file changed, 82 insertions(+), 85 deletions(-)
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index a07e93f..80f4b4a 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -368,56 +368,43 @@ static int smk_parse_rule(const char *data, struct smack_parsed_rule *rule,
+ * @data: string to be parsed, null terminated
+ * @rule: Will be filled with Smack parsed rule
+ * @import: if non-zero, import labels
+- * @change: if non-zero, data is from /smack/change-rule
++ * @tokens: numer of substrings expected in data
+ *
+- * Returns 0 on success, -1 on failure
++ * Returns number of processed bytes on success, -1 on failure.
+ */
+-static int smk_parse_long_rule(const char *data, struct smack_parsed_rule *rule,
+- int import, int change)
++static ssize_t smk_parse_long_rule(char *data, struct smack_parsed_rule *rule,
++ int import, int tokens)
+ {
+- char *subject;
+- char *object;
+- char *access1;
+- char *access2;
+- int datalen;
+- int rc = -1;
++ ssize_t cnt = 0;
++ char *tok[4];
++ int i;
+
+- /* This is inefficient */
+- datalen = strlen(data);
++ /*
++ * Parsing the rule in-place, filling all white-spaces with '\0'
++ */
++ for (i = 0; i < tokens; ++i) {
++ while (isspace(data[cnt]))
++ data[cnt++] = '\0';
+
+- /* Our first element can be 64 + \0 with no spaces */
+- subject = kzalloc(datalen + 1, GFP_KERNEL);
+- if (subject == NULL)
+- return -1;
+- object = kzalloc(datalen, GFP_KERNEL);
+- if (object == NULL)
+- goto free_out_s;
+- access1 = kzalloc(datalen, GFP_KERNEL);
+- if (access1 == NULL)
+- goto free_out_o;
+- access2 = kzalloc(datalen, GFP_KERNEL);
+- if (access2 == NULL)
+- goto free_out_a;
+-
+- if (change) {
+- if (sscanf(data, "%s %s %s %s",
+- subject, object, access1, access2) == 4)
+- rc = smk_fill_rule(subject, object, access1, access2,
+- rule, import, 0);
+- } else {
+- if (sscanf(data, "%s %s %s", subject, object, access1) == 3)
+- rc = smk_fill_rule(subject, object, access1, NULL,
+- rule, import, 0);
++ if (data[cnt] == '\0')
++ /* Unexpected end of data */
++ return -1;
++
++ tok[i] = data + cnt;
++
++ while (data[cnt] && !isspace(data[cnt]))
++ ++cnt;
+ }
++ while (isspace(data[cnt]))
++ data[cnt++] = '\0';
+
+- kfree(access2);
+-free_out_a:
+- kfree(access1);
+-free_out_o:
+- kfree(object);
+-free_out_s:
+- kfree(subject);
+- return rc;
++ while (i < 4)
++ tok[i++] = NULL;
++
++ if (smk_fill_rule(tok[0], tok[1], tok[2], tok[3], rule, import, 0))
++ return -1;
++
++ return cnt;
+ }
+
+ #define SMK_FIXED24_FMT 0 /* Fixed 24byte label format */
+@@ -449,9 +436,10 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
+ {
+ struct smack_parsed_rule rule;
+ char *data;
+- int datalen;
+- int rc = -EINVAL;
+- int load = 0;
++ int rc;
++ int trunc = 0;
++ int tokens;
++ ssize_t cnt = 0;
+
+ /*
+ * No partial writes.
+@@ -466,11 +454,14 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
+ */
+ if (count != SMK_OLOADLEN && count != SMK_LOADLEN)
+ return -EINVAL;
+- datalen = SMK_LOADLEN;
+- } else
+- datalen = count + 1;
++ } else {
++ if (count >= PAGE_SIZE) {
++ count = PAGE_SIZE - 1;
++ trunc = 1;
++ }
++ }
+
+- data = kzalloc(datalen, GFP_KERNEL);
++ data = kmalloc(count + 1, GFP_KERNEL);
+ if (data == NULL)
+ return -ENOMEM;
+
+@@ -479,36 +470,49 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
+ goto out;
+ }
+
+- if (format == SMK_LONG_FMT) {
+- /*
+- * Be sure the data string is terminated.
+- */
+- data[count] = '\0';
+- if (smk_parse_long_rule(data, &rule, 1, 0))
+- goto out;
+- } else if (format == SMK_CHANGE_FMT) {
+- data[count] = '\0';
+- if (smk_parse_long_rule(data, &rule, 1, 1))
+- goto out;
+- } else {
+- /*
+- * More on the minor hack for backward compatibility
+- */
+- if (count == (SMK_OLOADLEN))
+- data[SMK_OLOADLEN] = '-';
+- if (smk_parse_rule(data, &rule, 1))
++ /*
++ * In case of parsing only part of user buf,
++ * avoid having partial rule at the data buffer
++ */
++ if (trunc) {
++ while (count > 0 && (data[count - 1] != '\n'))
++ --count;
++ if (count == 0) {
++ rc = -EINVAL;
+ goto out;
++ }
+ }
+
+- if (rule_list == NULL) {
+- load = 1;
+- rule_list = &rule.smk_subject->smk_rules;
+- rule_lock = &rule.smk_subject->smk_rules_lock;
++ data[count] = '\0';
++ tokens = (format == SMK_CHANGE_FMT ? 4 : 3);
++ while (cnt < count) {
++ if (format == SMK_FIXED24_FMT) {
++ rc = smk_parse_rule(data, &rule, 1);
++ if (rc != 0) {
++ rc = -EINVAL;
++ goto out;
++ }
++ cnt = count;
++ } else {
++ rc = smk_parse_long_rule(data + cnt, &rule, 1, tokens);
++ if (rc <= 0) {
++ rc = -EINVAL;
++ goto out;
++ }
++ cnt += rc;
++ }
++
++ if (rule_list == NULL)
++ rc = smk_set_access(&rule, &rule.smk_subject->smk_rules,
++ &rule.smk_subject->smk_rules_lock, 1);
++ else
++ rc = smk_set_access(&rule, rule_list, rule_lock, 0);
++
++ if (rc)
++ goto out;
+ }
+
+- rc = smk_set_access(&rule, rule_list, rule_lock, load);
+- if (rc == 0)
+- rc = count;
++ rc = cnt;
+ out:
+ kfree(data);
+ return rc;
+@@ -1829,7 +1833,6 @@ static ssize_t smk_user_access(struct file *file, const char __user *buf,
+ {
+ struct smack_parsed_rule rule;
+ char *data;
+- char *cod;
+ int res;
+
+ data = simple_transaction_get(file, buf, count);
+@@ -1842,18 +1845,12 @@ static ssize_t smk_user_access(struct file *file, const char __user *buf,
+ res = smk_parse_rule(data, &rule, 0);
+ } else {
+ /*
+- * Copy the data to make sure the string is terminated.
++ * simple_transaction_get() returns null-terminated data
+ */
+- cod = kzalloc(count + 1, GFP_KERNEL);
+- if (cod == NULL)
+- return -ENOMEM;
+- memcpy(cod, data, count);
+- cod[count] = '\0';
+- res = smk_parse_long_rule(cod, &rule, 0, 0);
+- kfree(cod);
++ res = smk_parse_long_rule(data, &rule, 0, 3);
+ }
+
+- if (res)
++ if (res < 0)
+ return -EINVAL;
+
+ res = smk_access(rule.smk_subject, rule.smk_object,
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0013-Smack-Implement-lock-security-mode.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0013-Smack-Implement-lock-security-mode.patch
new file mode 100644
index 0000000..065734d
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0013-Smack-Implement-lock-security-mode.patch
@@ -0,0 +1,189 @@
+From a62902f65798858d0f8b7549ba70304ee047b2d6 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Fri, 11 Oct 2013 18:06:39 -0700
+Subject: [PATCH 13/54] Smack: Implement lock security mode
+
+Linux file locking does not follow the same rules
+as other mechanisms. Even though it is a write operation
+a process can set a read lock on files which it has open
+only for read access. Two programs with read access to
+a file can use read locks to communicate.
+
+This is not acceptable in a Mandatory Access Control
+environment. Smack treats setting a read lock as the
+write operation that it is. Unfortunately, many programs
+assume that setting a read lock is a read operation.
+These programs are unhappy in the Smack environment.
+
+This patch introduces a new access mode (lock) to address
+this problem. A process with lock access to a file can
+set a read lock. A process with write access to a file can
+set a read lock or a write lock. This prevents a situation
+where processes are granted write access just so they can
+set read locks.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack.h | 12 ++++++++----
+ security/smack/smack_access.c | 10 ++++++++++
+ security/smack/smack_lsm.c | 9 +++++++--
+ security/smack/smackfs.c | 10 ++++++++--
+ 4 files changed, 33 insertions(+), 8 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index 076b8e8..364cc64 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -177,9 +177,13 @@ struct smk_port_label {
+ #define SMACK_CIPSO_MAXCATNUM 184 /* 23 * 8 */
+
+ /*
+- * Flag for transmute access
++ * Flags for untraditional access modes.
++ * It shouldn't be necessary to avoid conflicts with definitions
++ * in fs.h, but do so anyway.
+ */
+-#define MAY_TRANSMUTE 64
++#define MAY_TRANSMUTE 0x00001000 /* Controls directory labeling */
++#define MAY_LOCK 0x00002000 /* Locks should be writes, but ... */
++
+ /*
+ * Just to make the common cases easier to deal with
+ */
+@@ -188,9 +192,9 @@ struct smk_port_label {
+ #define MAY_NOT 0
+
+ /*
+- * Number of access types used by Smack (rwxat)
++ * Number of access types used by Smack (rwxatl)
+ */
+-#define SMK_NUM_ACCESS_TYPE 5
++#define SMK_NUM_ACCESS_TYPE 6
+
+ /* SMACK data */
+ struct smack_audit_data {
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index b3b59b1..14293cd 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -84,6 +84,8 @@ int log_policy = SMACK_AUDIT_DENIED;
+ *
+ * Do the object check first because that is more
+ * likely to differ.
++ *
++ * Allowing write access implies allowing locking.
+ */
+ int smk_access_entry(char *subject_label, char *object_label,
+ struct list_head *rule_list)
+@@ -99,6 +101,11 @@ int smk_access_entry(char *subject_label, char *object_label,
+ }
+ }
+
++ /*
++ * MAY_WRITE implies MAY_LOCK.
++ */
++ if ((may & MAY_WRITE) == MAY_WRITE)
++ may |= MAY_LOCK;
+ return may;
+ }
+
+@@ -245,6 +252,7 @@ out_audit:
+ static inline void smack_str_from_perm(char *string, int access)
+ {
+ int i = 0;
++
+ if (access & MAY_READ)
+ string[i++] = 'r';
+ if (access & MAY_WRITE)
+@@ -255,6 +263,8 @@ static inline void smack_str_from_perm(char *string, int access)
+ string[i++] = 'a';
+ if (access & MAY_TRANSMUTE)
+ string[i++] = 't';
++ if (access & MAY_LOCK)
++ string[i++] = 'l';
+ string[i] = '\0';
+ }
+ /**
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 8825375..88d366e5 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1146,7 +1146,7 @@ static int smack_file_ioctl(struct file *file, unsigned int cmd,
+ * @file: the object
+ * @cmd: unused
+ *
+- * Returns 0 if current has write access, error code otherwise
++ * Returns 0 if current has lock access, error code otherwise
+ */
+ static int smack_file_lock(struct file *file, unsigned int cmd)
+ {
+@@ -1154,7 +1154,7 @@ static int smack_file_lock(struct file *file, unsigned int cmd)
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+- return smk_curacc(file->f_security, MAY_WRITE, &ad);
++ return smk_curacc(file->f_security, MAY_LOCK, &ad);
+ }
+
+ /**
+@@ -1178,8 +1178,13 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd,
+
+ switch (cmd) {
+ case F_GETLK:
++ break;
+ case F_SETLK:
+ case F_SETLKW:
++ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
++ smk_ad_setfield_u_fs_path(&ad, file->f_path);
++ rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
++ break;
+ case F_SETOWN:
+ case F_SETSIG:
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 80f4b4a..160aa08e 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -139,7 +139,7 @@ const char *smack_cipso_option = SMACK_CIPSO_OPTION;
+ * SMK_LOADLEN: Smack rule length
+ */
+ #define SMK_OACCESS "rwxa"
+-#define SMK_ACCESS "rwxat"
++#define SMK_ACCESS "rwxatl"
+ #define SMK_OACCESSLEN (sizeof(SMK_OACCESS) - 1)
+ #define SMK_ACCESSLEN (sizeof(SMK_ACCESS) - 1)
+ #define SMK_OLOADLEN (SMK_LABELLEN + SMK_LABELLEN + SMK_OACCESSLEN)
+@@ -282,6 +282,10 @@ static int smk_perm_from_str(const char *string)
+ case 'T':
+ perm |= MAY_TRANSMUTE;
+ break;
++ case 'l':
++ case 'L':
++ perm |= MAY_LOCK;
++ break;
+ default:
+ return perm;
+ }
+@@ -452,7 +456,7 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
+ /*
+ * Minor hack for backward compatibility
+ */
+- if (count != SMK_OLOADLEN && count != SMK_LOADLEN)
++ if (count < SMK_OLOADLEN || count > SMK_LOADLEN)
+ return -EINVAL;
+ } else {
+ if (count >= PAGE_SIZE) {
+@@ -592,6 +596,8 @@ static void smk_rule_show(struct seq_file *s, struct smack_rule *srp, int max)
+ seq_putc(s, 'a');
+ if (srp->smk_access & MAY_TRANSMUTE)
+ seq_putc(s, 't');
++ if (srp->smk_access & MAY_LOCK)
++ seq_putc(s, 'l');
+
+ seq_putc(s, '\n');
+ }
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0014-Smack-Ptrace-access-check-mode.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0014-Smack-Ptrace-access-check-mode.patch
new file mode 100644
index 0000000..3a7e8e2
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0014-Smack-Ptrace-access-check-mode.patch
@@ -0,0 +1,34 @@
+From 1efeb1c2415e7b5b5ce3ae0233d6c522f9e89d2d Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Tue, 22 Oct 2013 11:47:45 -0700
+Subject: [PATCH 14/54] Smack: Ptrace access check mode
+
+When the ptrace security hooks were split the addition of
+a mode parameter was not taken advantage of in the Smack
+ptrace access check. This changes the access check from
+always looking for read and write access to using the
+passed mode. This will make use of /proc much happier.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 88d366e5..b0be893 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -185,7 +185,7 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, ctp);
+
+- rc = smk_curacc(skp->smk_known, MAY_READWRITE, &ad);
++ rc = smk_curacc(skp->smk_known, mode, &ad);
+ return rc;
+ }
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0015-smack-fix-allow-either-entry-be-missing-on-access-ac.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0015-smack-fix-allow-either-entry-be-missing-on-access-ac.patch
new file mode 100644
index 0000000..bb01395
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0015-smack-fix-allow-either-entry-be-missing-on-access-ac.patch
@@ -0,0 +1,107 @@
+From ba7db93834a82cc1e8a1a91af549d7d40bd8d764 Mon Sep 17 00:00:00 2001
+From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
+Date: Thu, 28 Nov 2013 19:16:46 +0200
+Subject: [PATCH 15/54] smack: fix: allow either entry be missing on
+ access/access2 check (v2)
+
+This is a regression caused by f7112e6c. When either subject or
+object is not found the answer for access should be no. This
+patch fixes the situation. '0' is written back instead of failing
+with -EINVAL.
+
+v2: cosmetic style fixes
+
+Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
+---
+ security/smack/smackfs.c | 29 +++++++++++++++--------------
+ 1 file changed, 15 insertions(+), 14 deletions(-)
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 160aa08e..1c89ade 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -301,7 +301,8 @@ static int smk_perm_from_str(const char *string)
+ * @import: if non-zero, import labels
+ * @len: label length limit
+ *
+- * Returns 0 on success, -1 on failure
++ * Returns 0 on success, -EINVAL on failure and -ENOENT when either subject
++ * or object is missing.
+ */
+ static int smk_fill_rule(const char *subject, const char *object,
+ const char *access1, const char *access2,
+@@ -314,28 +315,28 @@ static int smk_fill_rule(const char *subject, const char *object,
+ if (import) {
+ rule->smk_subject = smk_import_entry(subject, len);
+ if (rule->smk_subject == NULL)
+- return -1;
++ return -EINVAL;
+
+ rule->smk_object = smk_import(object, len);
+ if (rule->smk_object == NULL)
+- return -1;
++ return -EINVAL;
+ } else {
+ cp = smk_parse_smack(subject, len);
+ if (cp == NULL)
+- return -1;
++ return -EINVAL;
+ skp = smk_find_entry(cp);
+ kfree(cp);
+ if (skp == NULL)
+- return -1;
++ return -ENOENT;
+ rule->smk_subject = skp;
+
+ cp = smk_parse_smack(object, len);
+ if (cp == NULL)
+- return -1;
++ return -EINVAL;
+ skp = smk_find_entry(cp);
+ kfree(cp);
+ if (skp == NULL)
+- return -1;
++ return -ENOENT;
+ rule->smk_object = skp->smk_known;
+ }
+
+@@ -381,6 +382,7 @@ static ssize_t smk_parse_long_rule(char *data, struct smack_parsed_rule *rule,
+ {
+ ssize_t cnt = 0;
+ char *tok[4];
++ int rc;
+ int i;
+
+ /*
+@@ -405,10 +407,8 @@ static ssize_t smk_parse_long_rule(char *data, struct smack_parsed_rule *rule,
+ while (i < 4)
+ tok[i++] = NULL;
+
+- if (smk_fill_rule(tok[0], tok[1], tok[2], tok[3], rule, import, 0))
+- return -1;
+-
+- return cnt;
++ rc = smk_fill_rule(tok[0], tok[1], tok[2], tok[3], rule, import, 0);
++ return rc == 0 ? cnt : rc;
+ }
+
+ #define SMK_FIXED24_FMT 0 /* Fixed 24byte label format */
+@@ -1856,11 +1856,12 @@ static ssize_t smk_user_access(struct file *file, const char __user *buf,
+ res = smk_parse_long_rule(data, &rule, 0, 3);
+ }
+
+- if (res < 0)
++ if (res >= 0)
++ res = smk_access(rule.smk_subject, rule.smk_object,
++ rule.smk_access1, NULL);
++ else if (res != -ENOENT)
+ return -EINVAL;
+
+- res = smk_access(rule.smk_subject, rule.smk_object,
+- rule.smk_access1, NULL);
+ data[0] = res == 0 ? '1' : '0';
+ data[1] = '\0';
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0016-Smack-Prevent-the-and-labels-from-being-used-in-SMAC.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0016-Smack-Prevent-the-and-labels-from-being-used-in-SMAC.patch
new file mode 100644
index 0000000..43e9fc7
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0016-Smack-Prevent-the-and-labels-from-being-used-in-SMAC.patch
@@ -0,0 +1,104 @@
+From 7e4d45e539473706108e6b77dd9c7a6d70a40ffb Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Mon, 16 Dec 2013 16:27:26 -0800
+Subject: [PATCH 16/54] Smack: Prevent the * and @ labels from being used in
+ SMACK64EXEC
+
+Smack prohibits processes from using the star ("*") and web ("@") labels
+because we don't want files with those labels getting created implicitly.
+All setting of those labels should be done explicitly. The trouble is that
+there is no check for these labels in the processing of SMACK64EXEC. That
+is repaired.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 53 ++++++++++++++++++++++++++++++++--------------
+ 1 file changed, 37 insertions(+), 16 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index b0be893..62ebf4f 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -837,31 +837,43 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
+ {
+ struct smk_audit_info ad;
++ struct smack_known *skp;
++ int check_priv = 0;
++ int check_import = 0;
++ int check_star = 0;
+ int rc = 0;
+
++ /*
++ * Check label validity here so import won't fail in post_setxattr
++ */
+ if (strcmp(name, XATTR_NAME_SMACK) == 0 ||
+ strcmp(name, XATTR_NAME_SMACKIPIN) == 0 ||
+- strcmp(name, XATTR_NAME_SMACKIPOUT) == 0 ||
+- strcmp(name, XATTR_NAME_SMACKEXEC) == 0 ||
+- strcmp(name, XATTR_NAME_SMACKMMAP) == 0) {
+- if (!smack_privileged(CAP_MAC_ADMIN))
+- rc = -EPERM;
+- /*
+- * check label validity here so import wont fail on
+- * post_setxattr
+- */
+- if (size == 0 || size >= SMK_LONGLABEL ||
+- smk_import(value, size) == NULL)
+- rc = -EINVAL;
++ strcmp(name, XATTR_NAME_SMACKIPOUT) == 0) {
++ check_priv = 1;
++ check_import = 1;
++ } else if (strcmp(name, XATTR_NAME_SMACKEXEC) == 0 ||
++ strcmp(name, XATTR_NAME_SMACKMMAP) == 0) {
++ check_priv = 1;
++ check_import = 1;
++ check_star = 1;
+ } else if (strcmp(name, XATTR_NAME_SMACKTRANSMUTE) == 0) {
+- if (!smack_privileged(CAP_MAC_ADMIN))
+- rc = -EPERM;
++ check_priv = 1;
+ if (size != TRANS_TRUE_SIZE ||
+ strncmp(value, TRANS_TRUE, TRANS_TRUE_SIZE) != 0)
+ rc = -EINVAL;
+ } else
+ rc = cap_inode_setxattr(dentry, name, value, size, flags);
+
++ if (check_priv && !smack_privileged(CAP_MAC_ADMIN))
++ rc = -EPERM;
++
++ if (rc == 0 && check_import) {
++ skp = smk_import_entry(value, size);
++ if (skp == NULL || (check_star &&
++ (skp == &smack_known_star || skp == &smack_known_web)))
++ rc = -EINVAL;
++ }
++
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
+ smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
+
+@@ -2847,8 +2859,17 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ if (rc >= 0)
+ transflag = SMK_INODE_TRANSMUTE;
+ }
+- isp->smk_task = smk_fetch(XATTR_NAME_SMACKEXEC, inode, dp);
+- isp->smk_mmap = smk_fetch(XATTR_NAME_SMACKMMAP, inode, dp);
++ /*
++ * Don't let the exec or mmap label be "*" or "@".
++ */
++ skp = smk_fetch(XATTR_NAME_SMACKEXEC, inode, dp);
++ if (skp == &smack_known_star || skp == &smack_known_web)
++ skp = NULL;
++ isp->smk_task = skp;
++ skp = smk_fetch(XATTR_NAME_SMACKMMAP, inode, dp);
++ if (skp == &smack_known_star || skp == &smack_known_web)
++ skp = NULL;
++ isp->smk_mmap = skp;
+
+ dput(dp);
+ break;
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0017-Smack-Make-the-syslog-control-configurable.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0017-Smack-Make-the-syslog-control-configurable.patch
new file mode 100644
index 0000000..a1bb4bf
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0017-Smack-Make-the-syslog-control-configurable.patch
@@ -0,0 +1,252 @@
+From c7928b67e3b2cd91da4cec3ae3bff33306efebe4 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Mon, 23 Dec 2013 11:07:10 -0800
+Subject: [PATCH 17/54] Smack: Make the syslog control configurable
+
+The syslog control requires that the calling proccess
+have the floor ("_") Smack label. Tizen does not run any
+processes except for kernel helpers with the floor label.
+This changes allows the admin to configure a specific
+label for syslog. The default value is the star ("*")
+label, effectively removing the restriction. The value
+can be set using smackfs/syslog for anyone who wants
+a more restrictive behavior.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack.h | 5 ++-
+ security/smack/smack_lsm.c | 4 +-
+ security/smack/smackfs.c | 103 +++++++++++++++++++++++++++++++++++++++++----
+ 3 files changed, 99 insertions(+), 13 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index 364cc64..d072fd3 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -241,7 +241,8 @@ u32 smack_to_secid(const char *);
+ extern int smack_cipso_direct;
+ extern int smack_cipso_mapped;
+ extern struct smack_known *smack_net_ambient;
+-extern char *smack_onlycap;
++extern struct smack_known *smack_onlycap;
++extern struct smack_known *smack_syslog_label;
+ extern const char *smack_cipso_option;
+
+ extern struct smack_known smack_known_floor;
+@@ -312,7 +313,7 @@ static inline int smack_privileged(int cap)
+
+ if (!capable(cap))
+ return 0;
+- if (smack_onlycap == NULL || smack_onlycap == skp->smk_known)
++ if (smack_onlycap == NULL || smack_onlycap == skp)
+ return 1;
+ return 0;
+ }
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 62ebf4f..67b7381d 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -219,8 +219,6 @@ static int smack_ptrace_traceme(struct task_struct *ptp)
+ * smack_syslog - Smack approval on syslog
+ * @type: message type
+ *
+- * Require that the task has the floor label
+- *
+ * Returns 0 on success, error code otherwise.
+ */
+ static int smack_syslog(int typefrom_file)
+@@ -231,7 +229,7 @@ static int smack_syslog(int typefrom_file)
+ if (smack_privileged(CAP_MAC_OVERRIDE))
+ return 0;
+
+- if (skp != &smack_known_floor)
++ if (smack_syslog_label != NULL && smack_syslog_label != skp)
+ rc = -EACCES;
+
+ return rc;
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 1c89ade..f5a6bb8 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -52,6 +52,7 @@ enum smk_inos {
+ SMK_CIPSO2 = 17, /* load long label -> CIPSO mapping */
+ SMK_REVOKE_SUBJ = 18, /* set rules with subject label to '-' */
+ SMK_CHANGE_RULE = 19, /* change or add rules (long labels) */
++ SMK_SYSLOG = 20, /* change syslog label) */
+ };
+
+ /*
+@@ -59,6 +60,7 @@ enum smk_inos {
+ */
+ static DEFINE_MUTEX(smack_cipso_lock);
+ static DEFINE_MUTEX(smack_ambient_lock);
++static DEFINE_MUTEX(smack_syslog_lock);
+ static DEFINE_MUTEX(smk_netlbladdr_lock);
+
+ /*
+@@ -90,7 +92,13 @@ int smack_cipso_mapped = SMACK_CIPSO_MAPPED_DEFAULT;
+ * everyone. It is expected that the hat (^) label
+ * will be used if any label is used.
+ */
+-char *smack_onlycap;
++struct smack_known *smack_onlycap;
++
++/*
++ * If this value is set restrict syslog use to the label specified.
++ * It can be reset via smackfs/syslog
++ */
++struct smack_known *smack_syslog_label;
+
+ /*
+ * Certain IP addresses may be designated as single label hosts.
+@@ -1603,7 +1611,7 @@ static const struct file_operations smk_ambient_ops = {
+ };
+
+ /**
+- * smk_read_onlycap - read() for /smack/onlycap
++ * smk_read_onlycap - read() for smackfs/onlycap
+ * @filp: file pointer, not actually used
+ * @buf: where to put the result
+ * @cn: maximum to send along
+@@ -1622,7 +1630,7 @@ static ssize_t smk_read_onlycap(struct file *filp, char __user *buf,
+ return 0;
+
+ if (smack_onlycap != NULL)
+- smack = smack_onlycap;
++ smack = smack_onlycap->smk_known;
+
+ asize = strlen(smack) + 1;
+
+@@ -1633,7 +1641,7 @@ static ssize_t smk_read_onlycap(struct file *filp, char __user *buf,
+ }
+
+ /**
+- * smk_write_onlycap - write() for /smack/onlycap
++ * smk_write_onlycap - write() for smackfs/onlycap
+ * @file: file pointer, not actually used
+ * @buf: where to get the data from
+ * @count: bytes sent
+@@ -1656,7 +1664,7 @@ static ssize_t smk_write_onlycap(struct file *file, const char __user *buf,
+ * explicitly for clarity. The smk_access() implementation
+ * would use smk_access(smack_onlycap, MAY_WRITE)
+ */
+- if (smack_onlycap != NULL && smack_onlycap != skp->smk_known)
++ if (smack_onlycap != NULL && smack_onlycap != skp)
+ return -EPERM;
+
+ data = kzalloc(count, GFP_KERNEL);
+@@ -1676,7 +1684,7 @@ static ssize_t smk_write_onlycap(struct file *file, const char __user *buf,
+ if (copy_from_user(data, buf, count) != 0)
+ rc = -EFAULT;
+ else
+- smack_onlycap = smk_import(data, count);
++ smack_onlycap = smk_import_entry(data, count);
+
+ kfree(data);
+ return rc;
+@@ -2159,12 +2167,89 @@ static const struct file_operations smk_change_rule_ops = {
+ };
+
+ /**
+- * smk_fill_super - fill the /smackfs superblock
++ * smk_read_syslog - read() for smackfs/syslog
++ * @filp: file pointer, not actually used
++ * @buf: where to put the result
++ * @cn: maximum to send along
++ * @ppos: where to start
++ *
++ * Returns number of bytes read or error code, as appropriate
++ */
++static ssize_t smk_read_syslog(struct file *filp, char __user *buf,
++ size_t cn, loff_t *ppos)
++{
++ struct smack_known *skp;
++ ssize_t rc = -EINVAL;
++ int asize;
++
++ if (*ppos != 0)
++ return 0;
++
++ if (smack_syslog_label == NULL)
++ skp = &smack_known_star;
++ else
++ skp = smack_syslog_label;
++
++ asize = strlen(skp->smk_known) + 1;
++
++ if (cn >= asize)
++ rc = simple_read_from_buffer(buf, cn, ppos, skp->smk_known,
++ asize);
++
++ return rc;
++}
++
++/**
++ * smk_write_syslog - write() for smackfs/syslog
++ * @file: file pointer, not actually used
++ * @buf: where to get the data from
++ * @count: bytes sent
++ * @ppos: where to start
++ *
++ * Returns number of bytes written or error code, as appropriate
++ */
++static ssize_t smk_write_syslog(struct file *file, const char __user *buf,
++ size_t count, loff_t *ppos)
++{
++ char *data;
++ struct smack_known *skp;
++ int rc = count;
++
++ if (!smack_privileged(CAP_MAC_ADMIN))
++ return -EPERM;
++
++ data = kzalloc(count, GFP_KERNEL);
++ if (data == NULL)
++ return -ENOMEM;
++
++ if (copy_from_user(data, buf, count) != 0)
++ rc = -EFAULT;
++ else {
++ skp = smk_import_entry(data, count);
++ if (skp == NULL)
++ rc = -EINVAL;
++ else
++ smack_syslog_label = smk_import_entry(data, count);
++ }
++
++ kfree(data);
++ return rc;
++}
++
++static const struct file_operations smk_syslog_ops = {
++ .read = smk_read_syslog,
++ .write = smk_write_syslog,
++ .llseek = default_llseek,
++};
++
++
++/**
++ * smk_fill_super - fill the smackfs superblock
+ * @sb: the empty superblock
+ * @data: unused
+ * @silent: unused
+ *
+- * Fill in the well known entries for /smack
++ * Fill in the well known entries for the smack filesystem
+ *
+ * Returns 0 on success, an error code on failure
+ */
+@@ -2209,6 +2294,8 @@ static int smk_fill_super(struct super_block *sb, void *data, int silent)
+ S_IRUGO|S_IWUSR},
+ [SMK_CHANGE_RULE] = {
+ "change-rule", &smk_change_rule_ops, S_IRUGO|S_IWUSR},
++ [SMK_SYSLOG] = {
++ "syslog", &smk_syslog_ops, S_IRUGO|S_IWUSR},
+ /* last one */
+ {""}
+ };
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0018-Smack-change-rule-cap-check.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0018-Smack-change-rule-cap-check.patch
new file mode 100644
index 0000000..1af9b40
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0018-Smack-change-rule-cap-check.patch
@@ -0,0 +1,33 @@
+From 791a375032d5224c6ebb5937d5816cef2917874b Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Thu, 19 Dec 2013 13:23:26 -0800
+Subject: [PATCH 18/54] Smack: change rule cap check
+
+smk_write_change_rule() is calling capable rather than
+the more correct smack_privileged(). This allows for setting
+rules in violation of the onlycap facility. This is the
+simple repair.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smackfs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index f5a6bb8..3198cfe 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -2152,7 +2152,7 @@ static ssize_t smk_write_change_rule(struct file *file, const char __user *buf,
+ /*
+ * Must have privilege.
+ */
+- if (!capable(CAP_MAC_ADMIN))
++ if (!smack_privileged(CAP_MAC_ADMIN))
+ return -EPERM;
+
+ return smk_write_rules_list(file, buf, count, ppos, NULL, NULL,
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0019-Smack-Rationalize-mount-restrictions.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0019-Smack-Rationalize-mount-restrictions.patch
new file mode 100644
index 0000000..ca3fabe
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0019-Smack-Rationalize-mount-restrictions.patch
@@ -0,0 +1,185 @@
+From 4f315dddfeb6f5aadad30d85bf4374b4e05c6e43 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Mon, 30 Dec 2013 09:38:00 -0800
+Subject: [PATCH 19/54] Smack: Rationalize mount restrictions
+
+The mount restrictions imposed by Smack rely heavily on the
+use of the filesystem "floor", which is the label that all
+processes writing to the filesystem must have access to. It
+turns out that while the "floor" notion is sound, it has yet
+to be fully implemented and has never been used.
+
+The sb_mount and sb_umount hooks only make sense if the
+filesystem floor is used actively, and it isn't. They can
+be reintroduced if a rational restriction comes up. Until
+then, they get removed.
+
+The sb_kern_mount hook is required for the option processing.
+It is too permissive in the case of unprivileged mounts,
+effectively bypassing the CAP_MAC_ADMIN restrictions if
+any of the smack options are specified. Unprivileged mounts
+are no longer allowed to set Smack filesystem options.
+Additionally, the root and default values are set to the
+label of the caller, in keeping with the policy that objects
+get the label of their creator.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 83 ++++++++++++++++------------------------------
+ 1 file changed, 29 insertions(+), 54 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 67b7381d..d552832 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -229,7 +229,7 @@ static int smack_syslog(int typefrom_file)
+ if (smack_privileged(CAP_MAC_OVERRIDE))
+ return 0;
+
+- if (smack_syslog_label != NULL && smack_syslog_label != skp)
++ if (smack_syslog_label != NULL && smack_syslog_label != skp)
+ rc = -EACCES;
+
+ return rc;
+@@ -339,10 +339,12 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+ struct inode *inode = root->d_inode;
+ struct superblock_smack *sp = sb->s_security;
+ struct inode_smack *isp;
++ struct smack_known *skp;
+ char *op;
+ char *commap;
+ char *nsp;
+ int transmute = 0;
++ int specified = 0;
+
+ if (sp->smk_initialized)
+ return 0;
+@@ -357,34 +359,56 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+ if (strncmp(op, SMK_FSHAT, strlen(SMK_FSHAT)) == 0) {
+ op += strlen(SMK_FSHAT);
+ nsp = smk_import(op, 0);
+- if (nsp != NULL)
++ if (nsp != NULL) {
+ sp->smk_hat = nsp;
++ specified = 1;
++ }
+ } else if (strncmp(op, SMK_FSFLOOR, strlen(SMK_FSFLOOR)) == 0) {
+ op += strlen(SMK_FSFLOOR);
+ nsp = smk_import(op, 0);
+- if (nsp != NULL)
++ if (nsp != NULL) {
+ sp->smk_floor = nsp;
++ specified = 1;
++ }
+ } else if (strncmp(op, SMK_FSDEFAULT,
+ strlen(SMK_FSDEFAULT)) == 0) {
+ op += strlen(SMK_FSDEFAULT);
+ nsp = smk_import(op, 0);
+- if (nsp != NULL)
++ if (nsp != NULL) {
+ sp->smk_default = nsp;
++ specified = 1;
++ }
+ } else if (strncmp(op, SMK_FSROOT, strlen(SMK_FSROOT)) == 0) {
+ op += strlen(SMK_FSROOT);
+ nsp = smk_import(op, 0);
+- if (nsp != NULL)
++ if (nsp != NULL) {
+ sp->smk_root = nsp;
++ specified = 1;
++ }
+ } else if (strncmp(op, SMK_FSTRANS, strlen(SMK_FSTRANS)) == 0) {
+ op += strlen(SMK_FSTRANS);
+ nsp = smk_import(op, 0);
+ if (nsp != NULL) {
+ sp->smk_root = nsp;
+ transmute = 1;
++ specified = 1;
+ }
+ }
+ }
+
++ if (!smack_privileged(CAP_MAC_ADMIN)) {
++ /*
++ * Unprivileged mounts don't get to specify Smack values.
++ */
++ if (specified)
++ return -EPERM;
++ /*
++ * Unprivileged mounts get root and default from the caller.
++ */
++ skp = smk_of_current();
++ sp->smk_root = skp->smk_known;
++ sp->smk_default = skp->smk_known;
++ }
+ /*
+ * Initialize the root inode.
+ */
+@@ -421,53 +445,6 @@ static int smack_sb_statfs(struct dentry *dentry)
+ return rc;
+ }
+
+-/**
+- * smack_sb_mount - Smack check for mounting
+- * @dev_name: unused
+- * @path: mount point
+- * @type: unused
+- * @flags: unused
+- * @data: unused
+- *
+- * Returns 0 if current can write the floor of the filesystem
+- * being mounted on, an error code otherwise.
+- */
+-static int smack_sb_mount(const char *dev_name, struct path *path,
+- const char *type, unsigned long flags, void *data)
+-{
+- struct superblock_smack *sbp = path->dentry->d_sb->s_security;
+- struct smk_audit_info ad;
+-
+- smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+- smk_ad_setfield_u_fs_path(&ad, *path);
+-
+- return smk_curacc(sbp->smk_floor, MAY_WRITE, &ad);
+-}
+-
+-/**
+- * smack_sb_umount - Smack check for unmounting
+- * @mnt: file system to unmount
+- * @flags: unused
+- *
+- * Returns 0 if current can write the floor of the filesystem
+- * being unmounted, an error code otherwise.
+- */
+-static int smack_sb_umount(struct vfsmount *mnt, int flags)
+-{
+- struct superblock_smack *sbp;
+- struct smk_audit_info ad;
+- struct path path;
+-
+- path.dentry = mnt->mnt_root;
+- path.mnt = mnt;
+-
+- smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+- smk_ad_setfield_u_fs_path(&ad, path);
+-
+- sbp = path.dentry->d_sb->s_security;
+- return smk_curacc(sbp->smk_floor, MAY_WRITE, &ad);
+-}
+-
+ /*
+ * BPRM hooks
+ */
+@@ -3762,8 +3739,6 @@ struct security_operations smack_ops = {
+ .sb_copy_data = smack_sb_copy_data,
+ .sb_kern_mount = smack_sb_kern_mount,
+ .sb_statfs = smack_sb_statfs,
+- .sb_mount = smack_sb_mount,
+- .sb_umount = smack_sb_umount,
+
+ .bprm_set_creds = smack_bprm_set_creds,
+ .bprm_committing_creds = smack_bprm_committing_creds,
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0020-Smack-File-receive-audit-correction.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0020-Smack-File-receive-audit-correction.patch
new file mode 100644
index 0000000..cb8a86f
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0020-Smack-File-receive-audit-correction.patch
@@ -0,0 +1,39 @@
+From bc7377d7cd27b9d17384e1486ac769a37cf8f745 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Mon, 30 Dec 2013 17:37:45 -0800
+Subject: [PATCH 20/54] Smack: File receive audit correction
+
+Eric Paris politely points out:
+
+ Inside smack_file_receive() it seems like you are initting the audit
+ field with LSM_AUDIT_DATA_TASK. And then use
+ smk_ad_setfield_u_fs_path().
+
+ Seems like LSM_AUDIT_DATA_PATH would make more sense. (and depending
+ on how it's used fix a crash...)
+
+He is correct. This puts things in order.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index d552832..d814e35 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1351,7 +1351,7 @@ static int smack_file_receive(struct file *file)
+ int may = 0;
+ struct smk_audit_info ad;
+
+- smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
++ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+ /*
+ * This code relies on bitmasks.
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0021-smack-call-WARN_ONCE-instead-of-calling-audit_log_st.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0021-smack-call-WARN_ONCE-instead-of-calling-audit_log_st.patch
new file mode 100644
index 0000000..bf8dd26
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0021-smack-call-WARN_ONCE-instead-of-calling-audit_log_st.patch
@@ -0,0 +1,36 @@
+From ea81dc20148025d25305582164e614754880606c Mon Sep 17 00:00:00 2001
+From: Richard Guy Briggs <rgb@redhat.com>
+Date: Thu, 21 Nov 2013 13:57:33 -0500
+Subject: [PATCH 21/54] smack: call WARN_ONCE() instead of calling
+ audit_log_start()
+
+Remove the call to audit_log() (which call audit_log_start()) and deal with
+the errors in the caller, logging only once if the condition is met. Calling
+audit_log_start() in this location makes buffer allocation and locking more
+complicated in the calling tree (audit_filter_user()).
+
+Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
+Signed-off-by: Eric Paris <eparis@redhat.com>
+---
+ security/smack/smack_lsm.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index d814e35..14f52be 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3616,9 +3616,8 @@ static int smack_audit_rule_match(u32 secid, u32 field, u32 op, void *vrule,
+ struct smack_known *skp;
+ char *rule = vrule;
+
+- if (!rule) {
+- audit_log(actx, GFP_ATOMIC, AUDIT_SELINUX_ERR,
+- "Smack: missing rule\n");
++ if (unlikely(!rule)) {
++ WARN_ONCE(1, "Smack: missing rule\n");
+ return -ENOENT;
+ }
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0022-Smack-Cgroup-filesystem-access.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0022-Smack-Cgroup-filesystem-access.patch
new file mode 100644
index 0000000..802c575
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0022-Smack-Cgroup-filesystem-access.patch
@@ -0,0 +1,82 @@
+From f2b14844c3072a3f58ddd8096569e189afc308aa Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Thu, 21 Nov 2013 10:55:10 +0200
+Subject: [PATCH 22/39] Smack: Cgroup filesystem access
+
+The cgroup filesystems are not mounted using conventional
+mechanisms. This prevents the use of mount options to
+set Smack attributes. This patch makes the behavior
+of cgroup filesystems compatable with the way systemd
+uses them.
+
+Change-Id: I1e0429f133db9e14117dc754d682dec08221354c
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
+Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>
+---
+ security/smack/smack_lsm.c | 30 ++++++++++++++++++------------
+ 1 file changed, 18 insertions(+), 12 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 14f52be..acd8574 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -2713,6 +2713,15 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * of the superblock.
+ */
+ if (opt_dentry->d_parent == opt_dentry) {
++ if (sbp->s_magic == CGROUP_SUPER_MAGIC) {
++ /*
++ * The cgroup filesystem is never mounted,
++ * so there's no opportunity to set the mount
++ * options.
++ */
++ sbsp->smk_root = smack_known_star.smk_known;
++ sbsp->smk_default = smack_known_star.smk_known;
++ }
+ isp->smk_inode = sbsp->smk_root;
+ isp->smk_flags |= SMK_INODE_INSTANT;
+ goto unlockandout;
+@@ -2726,16 +2735,20 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ */
+ switch (sbp->s_magic) {
+ case SMACK_MAGIC:
++ case PIPEFS_MAGIC:
++ case SOCKFS_MAGIC:
++ case CGROUP_SUPER_MAGIC:
+ /*
+ * Casey says that it's a little embarrassing
+ * that the smack file system doesn't do
+ * extended attributes.
+- */
+- final = smack_known_star.smk_known;
+- break;
+- case PIPEFS_MAGIC:
+- /*
++ *
+ * Casey says pipes are easy (?)
++ *
++ * Socket access is controlled by the socket
++ * structures associated with the task involved.
++ *
++ * Cgroupfs is special
+ */
+ final = smack_known_star.smk_known;
+ break;
+@@ -2747,13 +2760,6 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ */
+ final = ckp->smk_known;
+ break;
+- case SOCKFS_MAGIC:
+- /*
+- * Socket access is controlled by the socket
+- * structures associated with the task involved.
+- */
+- final = smack_known_star.smk_known;
+- break;
+ case PROC_SUPER_MAGIC:
+ /*
+ * Casey says procfs appears not to care.
+--
+1.9.1
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0022-smack-fix-key-permission-verification.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0022-smack-fix-key-permission-verification.patch
new file mode 100644
index 0000000..b61c2ef
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0022-smack-fix-key-permission-verification.patch
@@ -0,0 +1,55 @@
+From 618719c14729b2c9ef82cb462308671d11284a38 Mon Sep 17 00:00:00 2001
+From: Dmitry Kasatkin <d.kasatkin@samsung.com>
+Date: Fri, 14 Mar 2014 17:44:49 +0000
+Subject: [PATCH 22/54] smack: fix key permission verification
+
+For any keyring access type SMACK always used MAY_READWRITE access check.
+It prevents reading the key with label "_", which should be allowed for anyone.
+
+This patch changes default access check to MAY_READ and use MAY_READWRITE in only
+appropriate cases.
+
+Change-Id: I372968d614550d4c691301b2ef4b6478e76c62bf
+Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
+Signed-off-by: David Howells <dhowells@redhat.com>
+Acked-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 14f52be..16dcf7f 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3465,6 +3465,7 @@ static void smack_inet_csk_clone(struct sock *sk,
+ * If you care about keys please have a look.
+ */
+ #ifdef CONFIG_KEYS
++#include "../keys/internal.h" /* HACK FOR THE BACKPORT */
+
+ /**
+ * smack_key_alloc - Set the key security blob
+@@ -3511,6 +3512,7 @@ static int smack_key_permission(key_ref_t key_ref,
+ struct key *keyp;
+ struct smk_audit_info ad;
+ struct smack_known *tkp = smk_of_task(cred->security);
++ int request = 0;
+
+ keyp = key_ref_to_ptr(key_ref);
+ if (keyp == NULL)
+@@ -3531,7 +3533,11 @@ static int smack_key_permission(key_ref_t key_ref,
+ ad.a.u.key_struct.key = keyp->serial;
+ ad.a.u.key_struct.key_desc = keyp->description;
+ #endif
+- return smk_access(tkp, keyp->security, MAY_READWRITE, &ad);
++ if (perm & KEY_READ)
++ request = MAY_READ;
++ if (perm & (KEY_WRITE | KEY_LINK | KEY_SETATTR))
++ request = MAY_WRITE;
++ return smk_access(tkp, keyp->security, request, &ad);
+ }
+ #endif /* CONFIG_KEYS */
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0023-Minor-improvement-of-smack_sb_kern_mount.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0023-Minor-improvement-of-smack_sb_kern_mount.patch
new file mode 100644
index 0000000..1c5a46f
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0023-Minor-improvement-of-smack_sb_kern_mount.patch
@@ -0,0 +1,37 @@
+From c10dea6e10fc8607744d5b21b7ef7191d4b1a066 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jos=C3=A9=20Bollo?= <jose.bollo@open.eurogiciel.org>
+Date: Wed, 8 Jan 2014 15:53:05 +0100
+Subject: [PATCH 23/54] Minor improvement of 'smack_sb_kern_mount'
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Fix a possible memory access fault when transmute is true and isp is NULL.
+
+Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
+---
+ security/smack/smack_lsm.c | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 16dcf7f..b093463 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -413,9 +413,11 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+ * Initialize the root inode.
+ */
+ isp = inode->i_security;
+- if (inode->i_security == NULL) {
+- inode->i_security = new_inode_smack(sp->smk_root);
+- isp = inode->i_security;
++ if (isp == NULL) {
++ isp = new_inode_smack(sp->smk_root);
++ if (isp == NULL)
++ return -ENOMEM;
++ inode->i_security = isp;
+ } else
+ isp->smk_inode = sp->smk_root;
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0024-Smack-fix-the-subject-object-order-in-smack_ptrace_t.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0024-Smack-fix-the-subject-object-order-in-smack_ptrace_t.patch
new file mode 100644
index 0000000..a2fc123
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0024-Smack-fix-the-subject-object-order-in-smack_ptrace_t.patch
@@ -0,0 +1,118 @@
+From bf371cf1c4093db6a7a9c201edb6ca0e4231055c Mon Sep 17 00:00:00 2001
+From: Lukasz Pawelczyk <l.pawelczyk@partner.samsung.com>
+Date: Tue, 11 Mar 2014 17:07:04 +0100
+Subject: [PATCH 24/54] Smack: fix the subject/object order in
+ smack_ptrace_traceme()
+
+The order of subject/object is currently reversed in
+smack_ptrace_traceme(). It is currently checked if the tracee has a
+capability to trace tracer and according to this rule a decision is made
+whether the tracer will be allowed to trace tracee.
+
+Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@partner.samsung.com>
+Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
+---
+ security/smack/smack.h | 1 +
+ security/smack/smack_access.c | 33 ++++++++++++++++++++++++++-------
+ security/smack/smack_lsm.c | 4 ++--
+ 3 files changed, 29 insertions(+), 9 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index d072fd3..b9dfc4e 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -225,6 +225,7 @@ struct inode_smack *new_inode_smack(char *);
+ */
+ int smk_access_entry(char *, char *, struct list_head *);
+ int smk_access(struct smack_known *, char *, int, struct smk_audit_info *);
++int smk_tskacc(struct task_smack *, char *, u32, struct smk_audit_info *);
+ int smk_curacc(char *, u32, struct smk_audit_info *);
+ struct smack_known *smack_from_secid(const u32);
+ char *smk_parse_smack(const char *string, int len);
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index 14293cd..f161deb 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -192,20 +192,21 @@ out_audit:
+ }
+
+ /**
+- * smk_curacc - determine if current has a specific access to an object
++ * smk_tskacc - determine if a task has a specific access to an object
++ * @tsp: a pointer to the subject task
+ * @obj_label: a pointer to the object's Smack label
+ * @mode: the access requested, in "MAY" format
+ * @a : common audit data
+ *
+- * This function checks the current subject label/object label pair
++ * This function checks the subject task's label/object label pair
+ * in the access rule list and returns 0 if the access is permitted,
+- * non zero otherwise. It allows that current may have the capability
++ * non zero otherwise. It allows that the task may have the capability
+ * to override the rules.
+ */
+-int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
++int smk_tskacc(struct task_smack *subject, char *obj_label,
++ u32 mode, struct smk_audit_info *a)
+ {
+- struct task_smack *tsp = current_security();
+- struct smack_known *skp = smk_of_task(tsp);
++ struct smack_known *skp = smk_of_task(subject);
+ int may;
+ int rc;
+
+@@ -219,7 +220,7 @@ int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
+ * it can further restrict access.
+ */
+ may = smk_access_entry(skp->smk_known, obj_label,
+- &tsp->smk_rules);
++ &subject->smk_rules);
+ if (may < 0)
+ goto out_audit;
+ if ((mode & may) == mode)
+@@ -241,6 +242,24 @@ out_audit:
+ return rc;
+ }
+
++/**
++ * smk_curacc - determine if current has a specific access to an object
++ * @obj_label: a pointer to the object's Smack label
++ * @mode: the access requested, in "MAY" format
++ * @a : common audit data
++ *
++ * This function checks the current subject label/object label pair
++ * in the access rule list and returns 0 if the access is permitted,
++ * non zero otherwise. It allows that current may have the capability
++ * to override the rules.
++ */
++int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
++{
++ struct task_smack *tsp = current_security();
++
++ return smk_tskacc(tsp, obj_label, mode, a);
++}
++
+ #ifdef CONFIG_AUDIT
+ /**
+ * smack_str_from_perm : helper to transalate an int to a
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index b093463..0bea427 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -207,11 +207,11 @@ static int smack_ptrace_traceme(struct task_struct *ptp)
+ if (rc != 0)
+ return rc;
+
+- skp = smk_of_task(task_security(ptp));
++ skp = smk_of_task(current_security());
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, ptp);
+
+- rc = smk_curacc(skp->smk_known, MAY_READWRITE, &ad);
++ rc = smk_tskacc(ptp, skp->smk_known, MAY_READWRITE, &ad);
+ return rc;
+ }
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0025-Smack-unify-all-ptrace-accesses-in-the-smack.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0025-Smack-unify-all-ptrace-accesses-in-the-smack.patch
new file mode 100644
index 0000000..2619497
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0025-Smack-unify-all-ptrace-accesses-in-the-smack.patch
@@ -0,0 +1,185 @@
+From ff5f986cfb30bb75d4972b2b2e36fec368c13f1c Mon Sep 17 00:00:00 2001
+From: Lukasz Pawelczyk <l.pawelczyk@partner.samsung.com>
+Date: Tue, 11 Mar 2014 17:07:05 +0100
+Subject: [PATCH 25/54] Smack: unify all ptrace accesses in the smack
+
+The decision whether we can trace a process is made in the following
+functions:
+ smack_ptrace_traceme()
+ smack_ptrace_access_check()
+ smack_bprm_set_creds() (in case the proces is traced)
+
+This patch unifies all those decisions by introducing one function that
+checks whether ptrace is allowed: smk_ptrace_rule_check().
+
+This makes possible to actually trace with TRACEME where first the
+TRACEME itself must be allowed and then exec() on a traced process.
+
+Additional bugs fixed:
+- The decision is made according to the mode parameter that is now correctly
+ translated from PTRACE_MODE_* to MAY_* instead of being treated 1:1.
+ PTRACE_MODE_READ requires MAY_READ.
+ PTRACE_MODE_ATTACH requires MAY_READWRITE.
+- Add a smack audit log in case of exec() refused by bprm_set_creds().
+- Honor the PTRACE_MODE_NOAUDIT flag and don't put smack audit info
+ in case this flag is set.
+
+Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@partner.samsung.com>
+Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
+---
+ security/smack/smack_lsm.c | 84 +++++++++++++++++++++++++++++++++++++++-------
+ 1 file changed, 71 insertions(+), 13 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 0bea427..72438156 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -157,6 +157,54 @@ static int smk_copy_rules(struct list_head *nhead, struct list_head *ohead,
+ return rc;
+ }
+
++/**
++ * smk_ptrace_mode - helper function for converting PTRACE_MODE_* into MAY_*
++ * @mode - input mode in form of PTRACE_MODE_*
++ *
++ * Returns a converted MAY_* mode usable by smack rules
++ */
++static inline unsigned int smk_ptrace_mode(unsigned int mode)
++{
++ switch (mode) {
++ case PTRACE_MODE_READ:
++ return MAY_READ;
++ case PTRACE_MODE_ATTACH:
++ return MAY_READWRITE;
++ }
++
++ return 0;
++}
++
++/**
++ * smk_ptrace_rule_check - helper for ptrace access
++ * @tracer: tracer process
++ * @tracee_label: label of the process that's about to be traced
++ * @mode: ptrace attachment mode (PTRACE_MODE_*)
++ * @func: name of the function that called us, used for audit
++ *
++ * Returns 0 on access granted, -error on error
++ */
++static int smk_ptrace_rule_check(struct task_struct *tracer, char *tracee_label,
++ unsigned int mode, const char *func)
++{
++ int rc;
++ struct smk_audit_info ad, *saip = NULL;
++ struct task_smack *tsp;
++ struct smack_known *skp;
++
++ if ((mode & PTRACE_MODE_NOAUDIT) == 0) {
++ smk_ad_init(&ad, func, LSM_AUDIT_DATA_TASK);
++ smk_ad_setfield_u_tsk(&ad, tracer);
++ saip = &ad;
++ }
++
++ tsp = task_security(tracer);
++ skp = smk_of_task(tsp);
++
++ rc = smk_tskacc(tsp, tracee_label, smk_ptrace_mode(mode), saip);
++ return rc;
++}
++
+ /*
+ * LSM hooks.
+ * We he, that is fun!
+@@ -165,16 +213,15 @@ static int smk_copy_rules(struct list_head *nhead, struct list_head *ohead,
+ /**
+ * smack_ptrace_access_check - Smack approval on PTRACE_ATTACH
+ * @ctp: child task pointer
+- * @mode: ptrace attachment mode
++ * @mode: ptrace attachment mode (PTRACE_MODE_*)
+ *
+ * Returns 0 if access is OK, an error code otherwise
+ *
+- * Do the capability checks, and require read and write.
++ * Do the capability checks.
+ */
+ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
+ {
+ int rc;
+- struct smk_audit_info ad;
+ struct smack_known *skp;
+
+ rc = cap_ptrace_access_check(ctp, mode);
+@@ -182,10 +229,8 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
+ return rc;
+
+ skp = smk_of_task(task_security(ctp));
+- smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+- smk_ad_setfield_u_tsk(&ad, ctp);
+
+- rc = smk_curacc(skp->smk_known, mode, &ad);
++ rc = smk_ptrace_rule_check(current, skp->smk_known, mode, __func__);
+ return rc;
+ }
+
+@@ -195,12 +240,11 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
+ *
+ * Returns 0 if access is OK, an error code otherwise
+ *
+- * Do the capability checks, and require read and write.
++ * Do the capability checks, and require PTRACE_MODE_ATTACH.
+ */
+ static int smack_ptrace_traceme(struct task_struct *ptp)
+ {
+ int rc;
+- struct smk_audit_info ad;
+ struct smack_known *skp;
+
+ rc = cap_ptrace_traceme(ptp);
+@@ -208,10 +252,9 @@ static int smack_ptrace_traceme(struct task_struct *ptp)
+ return rc;
+
+ skp = smk_of_task(current_security());
+- smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+- smk_ad_setfield_u_tsk(&ad, ptp);
+
+- rc = smk_tskacc(ptp, skp->smk_known, MAY_READWRITE, &ad);
++ rc = smk_ptrace_rule_check(ptp, skp->smk_known,
++ PTRACE_MODE_ATTACH, __func__);
+ return rc;
+ }
+
+@@ -455,7 +498,7 @@ static int smack_sb_statfs(struct dentry *dentry)
+ * smack_bprm_set_creds - set creds for exec
+ * @bprm: the exec information
+ *
+- * Returns 0 if it gets a blob, -ENOMEM otherwise
++ * Returns 0 if it gets a blob, -EPERM if exec forbidden and -ENOMEM otherwise
+ */
+ static int smack_bprm_set_creds(struct linux_binprm *bprm)
+ {
+@@ -475,7 +518,22 @@ static int smack_bprm_set_creds(struct linux_binprm *bprm)
+ if (isp->smk_task == NULL || isp->smk_task == bsp->smk_task)
+ return 0;
+
+- if (bprm->unsafe)
++ if (bprm->unsafe & (LSM_UNSAFE_PTRACE | LSM_UNSAFE_PTRACE_CAP)) {
++ struct task_struct *tracer;
++ rc = 0;
++
++ rcu_read_lock();
++ tracer = ptrace_parent(current);
++ if (likely(tracer != NULL))
++ rc = smk_ptrace_rule_check(tracer,
++ isp->smk_task->smk_known,
++ PTRACE_MODE_ATTACH,
++ __func__);
++ rcu_read_unlock();
++
++ if (rc != 0)
++ return rc;
++ } else if (bprm->unsafe)
+ return -EPERM;
+
+ bsp->smk_task = isp->smk_task;
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0026-Smack-adds-smackfs-ptrace-interface.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0026-Smack-adds-smackfs-ptrace-interface.patch
new file mode 100644
index 0000000..0efd7db
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0026-Smack-adds-smackfs-ptrace-interface.patch
@@ -0,0 +1,233 @@
+From 9cb98c12dbf89a36970b0ee9c4b61c98ccd61d76 Mon Sep 17 00:00:00 2001
+From: Lukasz Pawelczyk <l.pawelczyk@partner.samsung.com>
+Date: Tue, 11 Mar 2014 17:07:06 +0100
+Subject: [PATCH 26/54] Smack: adds smackfs/ptrace interface
+
+This allows to limit ptrace beyond the regular smack access rules.
+It adds a smackfs/ptrace interface that allows smack to be configured
+to require equal smack labels for PTRACE_MODE_ATTACH access.
+See the changes in Documentation/security/Smack.txt below for details.
+
+Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@partner.samsung.com>
+Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
+---
+ Documentation/security/Smack.txt | 10 ++++++
+ security/smack/smack.h | 9 +++++
+ security/smack/smack_access.c | 5 ++-
+ security/smack/smack_lsm.c | 22 +++++++++++-
+ security/smack/smackfs.c | 74 ++++++++++++++++++++++++++++++++++++++++
+ 5 files changed, 118 insertions(+), 2 deletions(-)
+
+diff --git a/Documentation/security/Smack.txt b/Documentation/security/Smack.txt
+index 7a2d30c..5597917 100644
+--- a/Documentation/security/Smack.txt
++++ b/Documentation/security/Smack.txt
+@@ -204,6 +204,16 @@ onlycap
+ these capabilities are effective at for processes with any
+ label. The value is set by writing the desired label to the
+ file or cleared by writing "-" to the file.
++ptrace
++ This is used to define the current ptrace policy
++ 0 - default: this is the policy that relies on smack access rules.
++ For the PTRACE_READ a subject needs to have a read access on
++ object. For the PTRACE_ATTACH a read-write access is required.
++ 1 - exact: this is the policy that limits PTRACE_ATTACH. Attach is
++ only allowed when subject's and object's labels are equal.
++ PTRACE_READ is not affected. Can be overriden with CAP_SYS_PTRACE.
++ 2 - draconian: this policy behaves like the 'exact' above with an
++ exception that it can't be overriden with CAP_SYS_PTRACE.
+ revoke-subject
+ Writing a Smack label here sets the access to '-' for all access
+ rules with that subject label.
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index b9dfc4e..fade085 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -177,6 +177,14 @@ struct smk_port_label {
+ #define SMACK_CIPSO_MAXCATNUM 184 /* 23 * 8 */
+
+ /*
++ * Ptrace rules
++ */
++#define SMACK_PTRACE_DEFAULT 0
++#define SMACK_PTRACE_EXACT 1
++#define SMACK_PTRACE_DRACONIAN 2
++#define SMACK_PTRACE_MAX SMACK_PTRACE_DRACONIAN
++
++/*
+ * Flags for untraditional access modes.
+ * It shouldn't be necessary to avoid conflicts with definitions
+ * in fs.h, but do so anyway.
+@@ -245,6 +253,7 @@ extern struct smack_known *smack_net_ambient;
+ extern struct smack_known *smack_onlycap;
+ extern struct smack_known *smack_syslog_label;
+ extern const char *smack_cipso_option;
++extern int smack_ptrace_rule;
+
+ extern struct smack_known smack_known_floor;
+ extern struct smack_known smack_known_hat;
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index f161deb..c062e94 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -304,7 +304,10 @@ static void smack_log_callback(struct audit_buffer *ab, void *a)
+ audit_log_untrustedstring(ab, sad->subject);
+ audit_log_format(ab, " object=");
+ audit_log_untrustedstring(ab, sad->object);
+- audit_log_format(ab, " requested=%s", sad->request);
++ if (sad->request[0] == '\0')
++ audit_log_format(ab, " labels_differ");
++ else
++ audit_log_format(ab, " requested=%s", sad->request);
+ }
+
+ /**
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 72438156..91a447a 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -178,7 +178,8 @@ static inline unsigned int smk_ptrace_mode(unsigned int mode)
+ /**
+ * smk_ptrace_rule_check - helper for ptrace access
+ * @tracer: tracer process
+- * @tracee_label: label of the process that's about to be traced
++ * @tracee_label: label of the process that's about to be traced,
++ * the pointer must originate from smack structures
+ * @mode: ptrace attachment mode (PTRACE_MODE_*)
+ * @func: name of the function that called us, used for audit
+ *
+@@ -201,6 +202,25 @@ static int smk_ptrace_rule_check(struct task_struct *tracer, char *tracee_label,
+ tsp = task_security(tracer);
+ skp = smk_of_task(tsp);
+
++ if ((mode & PTRACE_MODE_ATTACH) &&
++ (smack_ptrace_rule == SMACK_PTRACE_EXACT ||
++ smack_ptrace_rule == SMACK_PTRACE_DRACONIAN)) {
++ if (skp->smk_known == tracee_label)
++ rc = 0;
++ else if (smack_ptrace_rule == SMACK_PTRACE_DRACONIAN)
++ rc = -EACCES;
++ else if (capable(CAP_SYS_PTRACE))
++ rc = 0;
++ else
++ rc = -EACCES;
++
++ if (saip)
++ smack_log(skp->smk_known, tracee_label, 0, rc, saip);
++
++ return rc;
++ }
++
++ /* In case of rule==SMACK_PTRACE_DEFAULT or mode==PTRACE_MODE_READ */
+ rc = smk_tskacc(tsp, tracee_label, smk_ptrace_mode(mode), saip);
+ return rc;
+ }
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 3198cfe..177d878 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -53,6 +53,7 @@ enum smk_inos {
+ SMK_REVOKE_SUBJ = 18, /* set rules with subject label to '-' */
+ SMK_CHANGE_RULE = 19, /* change or add rules (long labels) */
+ SMK_SYSLOG = 20, /* change syslog label) */
++ SMK_PTRACE = 21, /* set ptrace rule */
+ };
+
+ /*
+@@ -101,6 +102,15 @@ struct smack_known *smack_onlycap;
+ struct smack_known *smack_syslog_label;
+
+ /*
++ * Ptrace current rule
++ * SMACK_PTRACE_DEFAULT regular smack ptrace rules (/proc based)
++ * SMACK_PTRACE_EXACT labels must match, but can be overriden with
++ * CAP_SYS_PTRACE
++ * SMACK_PTRACE_DRACONIAN lables must match, CAP_SYS_PTRACE has no effect
++ */
++int smack_ptrace_rule = SMACK_PTRACE_DEFAULT;
++
++/*
+ * Certain IP addresses may be designated as single label hosts.
+ * Packets are sent there unlabeled, but only from tasks that
+ * can write to the specified label.
+@@ -2244,6 +2254,68 @@ static const struct file_operations smk_syslog_ops = {
+
+
+ /**
++ * smk_read_ptrace - read() for /smack/ptrace
++ * @filp: file pointer, not actually used
++ * @buf: where to put the result
++ * @count: maximum to send along
++ * @ppos: where to start
++ *
++ * Returns number of bytes read or error code, as appropriate
++ */
++static ssize_t smk_read_ptrace(struct file *filp, char __user *buf,
++ size_t count, loff_t *ppos)
++{
++ char temp[32];
++ ssize_t rc;
++
++ if (*ppos != 0)
++ return 0;
++
++ sprintf(temp, "%d\n", smack_ptrace_rule);
++ rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp));
++ return rc;
++}
++
++/**
++ * smk_write_ptrace - write() for /smack/ptrace
++ * @file: file pointer
++ * @buf: data from user space
++ * @count: bytes sent
++ * @ppos: where to start - must be 0
++ */
++static ssize_t smk_write_ptrace(struct file *file, const char __user *buf,
++ size_t count, loff_t *ppos)
++{
++ char temp[32];
++ int i;
++
++ if (!smack_privileged(CAP_MAC_ADMIN))
++ return -EPERM;
++
++ if (*ppos != 0 || count >= sizeof(temp) || count == 0)
++ return -EINVAL;
++
++ if (copy_from_user(temp, buf, count) != 0)
++ return -EFAULT;
++
++ temp[count] = '\0';
++
++ if (sscanf(temp, "%d", &i) != 1)
++ return -EINVAL;
++ if (i < SMACK_PTRACE_DEFAULT || i > SMACK_PTRACE_MAX)
++ return -EINVAL;
++ smack_ptrace_rule = i;
++
++ return count;
++}
++
++static const struct file_operations smk_ptrace_ops = {
++ .write = smk_write_ptrace,
++ .read = smk_read_ptrace,
++ .llseek = default_llseek,
++};
++
++/**
+ * smk_fill_super - fill the smackfs superblock
+ * @sb: the empty superblock
+ * @data: unused
+@@ -2296,6 +2368,8 @@ static int smk_fill_super(struct super_block *sb, void *data, int silent)
+ "change-rule", &smk_change_rule_ops, S_IRUGO|S_IWUSR},
+ [SMK_SYSLOG] = {
+ "syslog", &smk_syslog_ops, S_IRUGO|S_IWUSR},
++ [SMK_PTRACE] = {
++ "ptrace", &smk_ptrace_ops, S_IRUGO|S_IWUSR},
+ /* last one */
+ {""}
+ };
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0027-bugfix-patch-for-SMACK.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0027-bugfix-patch-for-SMACK.patch
new file mode 100644
index 0000000..5f78abf
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0027-bugfix-patch-for-SMACK.patch
@@ -0,0 +1,43 @@
+From 20a88e69ded71ba364c477c824c8173efeab873f Mon Sep 17 00:00:00 2001
+From: Pankaj Kumar <pankaj.k2@samsung.com>
+Date: Fri, 13 Dec 2013 15:12:22 +0530
+Subject: [PATCH 27/54] bugfix patch for SMACK
+
+1. In order to remove any SMACK extended attribute from a file, a user
+should have CAP_MAC_ADMIN capability. But user without having this
+capability is able to remove SMACK64MMAP security attribute.
+
+2. While validating size and value of smack extended attribute in
+smack_inode_setsecurity hook, wrong error code is returned.
+
+Signed-off-by: Pankaj Kumar <pamkaj.k2@samsung.com>
+Signed-off-by: Himanshu Shukla <himanshu.sh@samsung.com>
+---
+ security/smack/smack_lsm.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 91a447a..b47fd5f 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1018,7 +1018,7 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name)
+ strcmp(name, XATTR_NAME_SMACKIPOUT) == 0 ||
+ strcmp(name, XATTR_NAME_SMACKEXEC) == 0 ||
+ strcmp(name, XATTR_NAME_SMACKTRANSMUTE) == 0 ||
+- strcmp(name, XATTR_NAME_SMACKMMAP)) {
++ strcmp(name, XATTR_NAME_SMACKMMAP) == 0) {
+ if (!smack_privileged(CAP_MAC_ADMIN))
+ rc = -EPERM;
+ } else
+@@ -2156,7 +2156,7 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ int rc = 0;
+
+ if (value == NULL || size > SMK_LONGLABEL || size == 0)
+- return -EACCES;
++ return -EINVAL;
+
+ skp = smk_import_entry(value, size);
+ if (skp == NULL)
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0028-SMACK-Fix-handling-value-NULL-in-post-setxattr.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0028-SMACK-Fix-handling-value-NULL-in-post-setxattr.patch
new file mode 100644
index 0000000..1ad5727
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0028-SMACK-Fix-handling-value-NULL-in-post-setxattr.patch
@@ -0,0 +1,64 @@
+From c6b962ba0e84d84cb8434aae62108b537de04c2c Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jos=C3=A9=20Bollo?= <jose.bollo@open.eurogiciel.org>
+Date: Thu, 3 Apr 2014 13:48:41 +0200
+Subject: [PATCH 28/54] SMACK: Fix handling value==NULL in post setxattr
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The function `smack_inode_post_setxattr` is called each
+time that a setxattr is done, for any value of name.
+The kernel allow to put value==NULL when size==0
+to set an empty attribute value. The systematic
+call to smk_import_entry was causing the dereference
+of a NULL pointer hence a KERNEL PANIC!
+
+The problem can be produced easily by issuing the
+command `setfattr -n user.data file` under bash prompt
+when SMACK is active.
+
+Moving the call to smk_import_entry as proposed by this
+patch is correcting the behaviour because the function
+smack_inode_post_setxattr is called for the SMACK's
+attributes only if the function smack_inode_setxattr validated
+the value and its size (what will not be the case when size==0).
+
+It also has a benefical effect to not fill the smack hash
+with garbage values coming from any extended attribute
+write.
+
+Change-Id: Iaf0039c2be9bccb6cee11c24a3b44d209101fe47
+Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
+---
+ security/smack/smack_lsm.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index b47fd5f..e6c0a57 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -960,18 +960,20 @@ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name,
+ return;
+ }
+
+- skp = smk_import_entry(value, size);
+ if (strcmp(name, XATTR_NAME_SMACK) == 0) {
++ skp = smk_import_entry(value, size);
+ if (skp != NULL)
+ isp->smk_inode = skp->smk_known;
+ else
+ isp->smk_inode = smack_known_invalid.smk_known;
+ } else if (strcmp(name, XATTR_NAME_SMACKEXEC) == 0) {
++ skp = smk_import_entry(value, size);
+ if (skp != NULL)
+ isp->smk_task = skp;
+ else
+ isp->smk_task = &smack_known_invalid;
+ } else if (strcmp(name, XATTR_NAME_SMACKMMAP) == 0) {
++ skp = smk_import_entry(value, size);
+ if (skp != NULL)
+ isp->smk_mmap = skp;
+ else
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0029-Smack-Correctly-remove-SMACK64TRANSMUTE-attribute.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0029-Smack-Correctly-remove-SMACK64TRANSMUTE-attribute.patch
new file mode 100644
index 0000000..b70522d
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0029-Smack-Correctly-remove-SMACK64TRANSMUTE-attribute.patch
@@ -0,0 +1,64 @@
+From cb4e7f82cf806db0fb08aa83e6b3b4aa3918af60 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Thu, 10 Apr 2014 16:35:36 -0700
+Subject: [PATCH 29/54] Smack: Correctly remove SMACK64TRANSMUTE attribute
+
+Sam Henderson points out that removing the SMACK64TRANSMUTE
+attribute from a directory does not result in the directory
+transmuting. This is because the inode flag indicating that
+the directory is transmuting isn't cleared. The fix is a tad
+less than trivial because smk_task and smk_mmap should have
+been broken out, too.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 25 +++++++++++++++++++------
+ 1 file changed, 19 insertions(+), 6 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index e6c0a57..b259a0d 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1026,18 +1026,31 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name)
+ } else
+ rc = cap_inode_removexattr(dentry, name);
+
++ if (rc != 0)
++ return rc;
++
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
+ smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
+- if (rc == 0)
+- rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
+
+- if (rc == 0) {
+- isp = dentry->d_inode->i_security;
++ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
++ if (rc != 0)
++ return rc;
++
++ isp = dentry->d_inode->i_security;
++ /*
++ * Don't do anything special for these.
++ * XATTR_NAME_SMACKIPIN
++ * XATTR_NAME_SMACKIPOUT
++ * XATTR_NAME_SMACKEXEC
++ */
++ if (strcmp(name, XATTR_NAME_SMACK) == 0)
+ isp->smk_task = NULL;
++ else if (strcmp(name, XATTR_NAME_SMACKMMAP) == 0)
+ isp->smk_mmap = NULL;
+- }
++ else if (strcmp(name, XATTR_NAME_SMACKTRANSMUTE) == 0)
++ isp->smk_flags &= ~SMK_INODE_TRANSMUTE;
+
+- return rc;
++ return 0;
+ }
+
+ /**
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0030-Smack-bidirectional-UDS-connect-check.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0030-Smack-bidirectional-UDS-connect-check.patch
new file mode 100644
index 0000000..bc65513
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0030-Smack-bidirectional-UDS-connect-check.patch
@@ -0,0 +1,204 @@
+From dab2915e5899611c1d90d5c35d4b463145ce9fad Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Thu, 10 Apr 2014 16:37:08 -0700
+Subject: [PATCH 30/54] Smack: bidirectional UDS connect check
+
+Smack IPC policy requires that the sender have write access
+to the receiver. UDS streams don't do per-packet checks. The
+only check is done at connect time. The existing code checks
+if the connecting process can write to the other, but not the
+other way around. This change adds a check that the other end
+can write to the connecting process.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schuafler <casey@schaufler-ca.com>
+---
+ security/smack/smack.h | 6 +++---
+ security/smack/smack_lsm.c | 44 ++++++++++++++++++++++++--------------------
+ 2 files changed, 27 insertions(+), 23 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index fade085..020307e 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -80,8 +80,8 @@ struct superblock_smack {
+
+ struct socket_smack {
+ struct smack_known *smk_out; /* outbound label */
+- char *smk_in; /* inbound label */
+- char *smk_packet; /* TCP peer label */
++ struct smack_known *smk_in; /* inbound label */
++ struct smack_known *smk_packet; /* TCP peer label */
+ };
+
+ /*
+@@ -133,7 +133,7 @@ struct smk_port_label {
+ struct list_head list;
+ struct sock *smk_sock; /* socket initialized on */
+ unsigned short smk_port; /* the port number */
+- char *smk_in; /* incoming label */
++ struct smack_known *smk_in; /* inbound label */
+ struct smack_known *smk_out; /* outgoing label */
+ };
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index b259a0d..21ef3a1 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1095,7 +1095,7 @@ static int smack_inode_getsecurity(const struct inode *inode,
+ ssp = sock->sk->sk_security;
+
+ if (strcmp(name, XATTR_SMACK_IPIN) == 0)
+- isp = ssp->smk_in;
++ isp = ssp->smk_in->smk_known;
+ else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
+ isp = ssp->smk_out->smk_known;
+ else
+@@ -1859,7 +1859,7 @@ static int smack_sk_alloc_security(struct sock *sk, int family, gfp_t gfp_flags)
+ if (ssp == NULL)
+ return -ENOMEM;
+
+- ssp->smk_in = skp->smk_known;
++ ssp->smk_in = skp;
+ ssp->smk_out = skp;
+ ssp->smk_packet = NULL;
+
+@@ -2099,7 +2099,7 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr_in6 *address,
+
+ if (act == SMK_RECEIVING) {
+ skp = smack_net_ambient;
+- object = ssp->smk_in;
++ object = ssp->smk_in->smk_known;
+ } else {
+ skp = ssp->smk_out;
+ object = smack_net_ambient->smk_known;
+@@ -2129,9 +2129,9 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr_in6 *address,
+ list_for_each_entry(spp, &smk_ipv6_port_list, list) {
+ if (spp->smk_port != port)
+ continue;
+- object = spp->smk_in;
++ object = spp->smk_in->smk_known;
+ if (act == SMK_CONNECTING)
+- ssp->smk_packet = spp->smk_out->smk_known;
++ ssp->smk_packet = spp->smk_out;
+ break;
+ }
+
+@@ -2195,7 +2195,7 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ ssp = sock->sk->sk_security;
+
+ if (strcmp(name, XATTR_SMACK_IPIN) == 0)
+- ssp->smk_in = skp->smk_known;
++ ssp->smk_in = skp;
+ else if (strcmp(name, XATTR_SMACK_IPOUT) == 0) {
+ ssp->smk_out = skp;
+ if (sock->sk->sk_family == PF_INET) {
+@@ -3054,30 +3054,34 @@ static int smack_unix_stream_connect(struct sock *sock,
+ struct sock *other, struct sock *newsk)
+ {
+ struct smack_known *skp;
++ struct smack_known *okp;
+ struct socket_smack *ssp = sock->sk_security;
+ struct socket_smack *osp = other->sk_security;
+ struct socket_smack *nsp = newsk->sk_security;
+ struct smk_audit_info ad;
+ int rc = 0;
+-
+ #ifdef CONFIG_AUDIT
+ struct lsm_network_audit net;
+-
+- smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
+- smk_ad_setfield_u_net_sk(&ad, other);
+ #endif
+
+ if (!smack_privileged(CAP_MAC_OVERRIDE)) {
+ skp = ssp->smk_out;
+- rc = smk_access(skp, osp->smk_in, MAY_WRITE, &ad);
++ okp = osp->smk_out;
++#ifdef CONFIG_AUDIT
++ smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
++ smk_ad_setfield_u_net_sk(&ad, other);
++#endif
++ rc = smk_access(skp, okp->smk_known, MAY_WRITE, &ad);
++ if (rc == 0)
++ rc = smk_access(okp, okp->smk_known, MAY_WRITE, NULL);
+ }
+
+ /*
+ * Cross reference the peer labels for SO_PEERSEC.
+ */
+ if (rc == 0) {
+- nsp->smk_packet = ssp->smk_out->smk_known;
+- ssp->smk_packet = osp->smk_out->smk_known;
++ nsp->smk_packet = ssp->smk_out;
++ ssp->smk_packet = osp->smk_out;
+ }
+
+ return rc;
+@@ -3109,7 +3113,7 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
+ return 0;
+
+ skp = ssp->smk_out;
+- return smk_access(skp, osp->smk_in, MAY_WRITE, &ad);
++ return smk_access(skp, osp->smk_in->smk_known, MAY_WRITE, &ad);
+ }
+
+ /**
+@@ -3204,7 +3208,7 @@ static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ if (found)
+ return skp;
+
+- if (ssp != NULL && ssp->smk_in == smack_known_star.smk_known)
++ if (ssp != NULL && ssp->smk_in == &smack_known_star)
+ return &smack_known_web;
+ return &smack_known_star;
+ }
+@@ -3323,7 +3327,7 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ * This is the simplist possible security model
+ * for networking.
+ */
+- rc = smk_access(skp, ssp->smk_in, MAY_WRITE, &ad);
++ rc = smk_access(skp, ssp->smk_in->smk_known, MAY_WRITE, &ad);
+ if (rc != 0)
+ netlbl_skbuff_err(skb, rc, 0);
+ break;
+@@ -3358,7 +3362,7 @@ static int smack_socket_getpeersec_stream(struct socket *sock,
+
+ ssp = sock->sk->sk_security;
+ if (ssp->smk_packet != NULL) {
+- rcp = ssp->smk_packet;
++ rcp = ssp->smk_packet->smk_known;
+ slen = strlen(rcp) + 1;
+ }
+
+@@ -3443,7 +3447,7 @@ static void smack_sock_graft(struct sock *sk, struct socket *parent)
+ return;
+
+ ssp = sk->sk_security;
+- ssp->smk_in = skp->smk_known;
++ ssp->smk_in = skp;
+ ssp->smk_out = skp;
+ /* cssp->smk_packet is already set in smack_inet_csk_clone() */
+ }
+@@ -3503,7 +3507,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ * Receiving a packet requires that the other end be able to write
+ * here. Read access is not required.
+ */
+- rc = smk_access(skp, ssp->smk_in, MAY_WRITE, &ad);
++ rc = smk_access(skp, ssp->smk_in->smk_known, MAY_WRITE, &ad);
+ if (rc != 0)
+ return rc;
+
+@@ -3547,7 +3551,7 @@ static void smack_inet_csk_clone(struct sock *sk,
+
+ if (req->peer_secid != 0) {
+ skp = smack_from_secid(req->peer_secid);
+- ssp->smk_packet = skp->smk_known;
++ ssp->smk_packet = skp;
+ } else
+ ssp->smk_packet = NULL;
+ }
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0031-Smack-Verify-read-access-on-file-open-v3.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0031-Smack-Verify-read-access-on-file-open-v3.patch
new file mode 100644
index 0000000..8648539
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0031-Smack-Verify-read-access-on-file-open-v3.patch
@@ -0,0 +1,62 @@
+From cc70dd7060ebfe5ed72c88c6316d0e295ce081a9 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Mon, 21 Apr 2014 11:10:26 -0700
+Subject: [PATCH 31/54] Smack: Verify read access on file open - v3
+
+Smack believes that many of the operatons that can
+be performed on an open file descriptor are read operations.
+The fstat and lseek system calls are examples.
+An implication of this is that files shouldn't be open
+if the task doesn't have read access even if it has
+write access and the file is being opened write only.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 19 ++++++++++++++++---
+ 1 file changed, 16 insertions(+), 3 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 21ef3a1..6776130 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1462,19 +1462,32 @@ static int smack_file_receive(struct file *file)
+ /**
+ * smack_file_open - Smack dentry open processing
+ * @file: the object
+- * @cred: unused
++ * @cred: task credential
+ *
+ * Set the security blob in the file structure.
++ * Allow the open only if the task has read access. There are
++ * many read operations (e.g. fstat) that you can do with an
++ * fd even if you have the file open write-only.
+ *
+ * Returns 0
+ */
+ static int smack_file_open(struct file *file, const struct cred *cred)
+ {
++ struct task_smack *tsp = cred->security;
+ struct inode_smack *isp = file_inode(file)->i_security;
++ struct smk_audit_info ad;
++ int rc;
+
+- file->f_security = isp->smk_inode;
++ if (smack_privileged(CAP_MAC_OVERRIDE))
++ return 0;
+
+- return 0;
++ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
++ smk_ad_setfield_u_fs_path(&ad, file->f_path);
++ rc = smk_access(tsp->smk_task, isp->smk_inode, MAY_READ, &ad);
++ if (rc == 0)
++ file->f_security = isp->smk_inode;
++
++ return rc;
+ }
+
+ /*
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0032-Smack-Label-cgroup-files-for-systemd.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0032-Smack-Label-cgroup-files-for-systemd.patch
new file mode 100644
index 0000000..cb40c2f
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0032-Smack-Label-cgroup-files-for-systemd.patch
@@ -0,0 +1,80 @@
+From d7ad31586a99cf4a7715589e36e9e8cde2365ae1 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Mon, 28 Apr 2014 15:23:01 -0700
+Subject: [PATCH 32/54] Smack: Label cgroup files for systemd
+
+The cgroup filesystem isn't ready for an LSM to
+properly use extented attributes. This patch makes
+files created in the cgroup filesystem usable by
+a system running Smack and systemd.
+
+Targeted for git://git.gitorious.org/smack-next/kernel.git
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 30 ++++++++++++++++++------------
+ 1 file changed, 18 insertions(+), 12 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 6776130..1085bb7 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -2821,6 +2821,15 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * of the superblock.
+ */
+ if (opt_dentry->d_parent == opt_dentry) {
++ if (sbp->s_magic == CGROUP_SUPER_MAGIC) {
++ /*
++ * The cgroup filesystem is never mounted,
++ * so there's no opportunity to set the mount
++ * options.
++ */
++ sbsp->smk_root = smack_known_star.smk_known;
++ sbsp->smk_default = smack_known_star.smk_known;
++ }
+ isp->smk_inode = sbsp->smk_root;
+ isp->smk_flags |= SMK_INODE_INSTANT;
+ goto unlockandout;
+@@ -2834,16 +2843,20 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ */
+ switch (sbp->s_magic) {
+ case SMACK_MAGIC:
++ case PIPEFS_MAGIC:
++ case SOCKFS_MAGIC:
++ case CGROUP_SUPER_MAGIC:
+ /*
+ * Casey says that it's a little embarrassing
+ * that the smack file system doesn't do
+ * extended attributes.
+- */
+- final = smack_known_star.smk_known;
+- break;
+- case PIPEFS_MAGIC:
+- /*
++ *
+ * Casey says pipes are easy (?)
++ *
++ * Socket access is controlled by the socket
++ * structures associated with the task involved.
++ *
++ * Cgroupfs is special
+ */
+ final = smack_known_star.smk_known;
+ break;
+@@ -2855,13 +2868,6 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ */
+ final = ckp->smk_known;
+ break;
+- case SOCKFS_MAGIC:
+- /*
+- * Socket access is controlled by the socket
+- * structures associated with the task involved.
+- */
+- final = smack_known_star.smk_known;
+- break;
+ case PROC_SUPER_MAGIC:
+ /*
+ * Casey says procfs appears not to care.
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0033-Warning-in-scanf-string-typing.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0033-Warning-in-scanf-string-typing.patch
new file mode 100644
index 0000000..44b1f98
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0033-Warning-in-scanf-string-typing.patch
@@ -0,0 +1,32 @@
+From 3514fd7a5df09a5a45673139be44e2bd0394d1a7 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Toralf=20F=C3=B6rster?= <toralf.foerster@gmx.de>
+Date: Sun, 27 Apr 2014 19:33:34 +0200
+Subject: [PATCH 33/54] Warning in scanf string typing
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This fixes a warning about the mismatch of types between
+the declared unsigned and integer.
+
+Signed-off-by: Toralf Förster <toralf.foerster@gmx.de>
+---
+ security/smack/smackfs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 177d878..32b2488 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -1193,7 +1193,7 @@ static ssize_t smk_write_netlbladdr(struct file *file, const char __user *buf,
+
+ data[count] = '\0';
+
+- rc = sscanf(data, "%hhd.%hhd.%hhd.%hhd/%d %s",
++ rc = sscanf(data, "%hhd.%hhd.%hhd.%hhd/%u %s",
+ &host[0], &host[1], &host[2], &host[3], &m, smack);
+ if (rc != 6) {
+ rc = sscanf(data, "%hhd.%hhd.%hhd.%hhd %s",
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0034-Smack-fix-behavior-of-smack_inode_listsecurity.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0034-Smack-fix-behavior-of-smack_inode_listsecurity.patch
new file mode 100644
index 0000000..538408f
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0034-Smack-fix-behavior-of-smack_inode_listsecurity.patch
@@ -0,0 +1,45 @@
+From fbe0bb11353782b18ebf9455f36cce1da1003a90 Mon Sep 17 00:00:00 2001
+From: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
+Date: Thu, 7 Aug 2014 20:52:33 +0400
+Subject: [PATCH 34/54] Smack: fix behavior of smack_inode_listsecurity
+
+Security operation ->inode_listsecurity is used for generating list of
+available extended attributes for syscall listxattr. Currently it's used
+only in nfs4 or if filesystem doesn't provide i_op->listxattr.
+
+The list is the set of NULL-terminated names, one after the other.
+This method must include zero byte at the and into result.
+
+Also this function must return length even if string does not fit into
+output buffer or it is NULL, see similar method in selinux and man listxattr.
+
+Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
+---
+ security/smack/smack_lsm.c | 9 ++++-----
+ 1 file changed, 4 insertions(+), 5 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 1085bb7..f72d17c 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1122,13 +1122,12 @@ static int smack_inode_getsecurity(const struct inode *inode,
+ static int smack_inode_listsecurity(struct inode *inode, char *buffer,
+ size_t buffer_size)
+ {
+- int len = strlen(XATTR_NAME_SMACK);
++ int len = sizeof(XATTR_NAME_SMACK);
+
+- if (buffer != NULL && len <= buffer_size) {
++ if (buffer != NULL && len <= buffer_size)
+ memcpy(buffer, XATTR_NAME_SMACK, len);
+- return len;
+- }
+- return -EINVAL;
++
++ return len;
+ }
+
+ /**
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0035-Smack-handle-zero-length-security-labels-without-pan.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0035-Smack-handle-zero-length-security-labels-without-pan.patch
new file mode 100644
index 0000000..b22dbed
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0035-Smack-handle-zero-length-security-labels-without-pan.patch
@@ -0,0 +1,62 @@
+From 725aece63ff35520dbd369079dd2f6430f795a5f Mon Sep 17 00:00:00 2001
+From: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
+Date: Thu, 7 Aug 2014 20:52:43 +0400
+Subject: [PATCH 35/54] Smack: handle zero-length security labels without panic
+
+Zero-length security labels are invalid but kernel should handle them.
+
+This patch fixes kernel panic after setting zero-length security labels:
+# attr -S -s "SMACK64" -V "" file
+
+And after writing zero-length string into smackfs files syslog and onlycp:
+# python -c 'import os; os.write(1, "")' > /smack/syslog
+
+The problem is caused by brain-damaged logic in function smk_parse_smack()
+which takes pointer to buffer and its length but if length below or equal zero
+it thinks that the buffer is zero-terminated. Unfortunately callers of this
+function are widely used and proper fix requires serious refactoring.
+
+Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
+---
+ security/smack/smack_lsm.c | 2 +-
+ security/smack/smackfs.c | 4 ++--
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index f72d17c..8d23c23 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -923,7 +923,7 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
+ rc = -EPERM;
+
+ if (rc == 0 && check_import) {
+- skp = smk_import_entry(value, size);
++ skp = size ? smk_import_entry(value, size) : NULL;
+ if (skp == NULL || (check_star &&
+ (skp == &smack_known_star || skp == &smack_known_web)))
+ rc = -EINVAL;
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 32b2488..585bea0 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -1677,7 +1677,7 @@ static ssize_t smk_write_onlycap(struct file *file, const char __user *buf,
+ if (smack_onlycap != NULL && smack_onlycap != skp)
+ return -EPERM;
+
+- data = kzalloc(count, GFP_KERNEL);
++ data = kzalloc(count + 1, GFP_KERNEL);
+ if (data == NULL)
+ return -ENOMEM;
+
+@@ -2228,7 +2228,7 @@ static ssize_t smk_write_syslog(struct file *file, const char __user *buf,
+ if (!smack_privileged(CAP_MAC_ADMIN))
+ return -EPERM;
+
+- data = kzalloc(count, GFP_KERNEL);
++ data = kzalloc(count + 1, GFP_KERNEL);
+ if (data == NULL)
+ return -ENOMEM;
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0036-Smack-remove-unneeded-NULL-termination-from-securtit.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0036-Smack-remove-unneeded-NULL-termination-from-securtit.patch
new file mode 100644
index 0000000..2c72253
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0036-Smack-remove-unneeded-NULL-termination-from-securtit.patch
@@ -0,0 +1,54 @@
+From a48c9922ebf7553ec8bcecb9a41e04e120c454ec Mon Sep 17 00:00:00 2001
+From: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
+Date: Thu, 7 Aug 2014 20:52:49 +0400
+Subject: [PATCH 36/54] Smack: remove unneeded NULL-termination from securtity
+ label
+
+Values of extended attributes are stored as binary blobs. NULL-termination
+of them isn't required. It just wastes disk space and confuses command-line
+tools like getfattr because they have to print that zero byte at the end.
+
+This patch removes terminating zero byte from initial security label in
+smack_inode_init_security and cuts it out in function smack_inode_getsecurity
+which is used by syscall getxattr. This change seems completely safe, because
+function smk_parse_smack ignores everything after first zero byte.
+
+Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
+---
+ security/smack/smack_lsm.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 8d23c23..1befb0a 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -672,7 +672,7 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ }
+
+ if (len)
+- *len = strlen(isp) + 1;
++ *len = strlen(isp);
+
+ return 0;
+ }
+@@ -1076,7 +1076,7 @@ static int smack_inode_getsecurity(const struct inode *inode,
+
+ if (strcmp(name, XATTR_SMACK_SUFFIX) == 0) {
+ isp = smk_of_inode(inode);
+- ilen = strlen(isp) + 1;
++ ilen = strlen(isp);
+ *buffer = isp;
+ return ilen;
+ }
+@@ -1101,7 +1101,7 @@ static int smack_inode_getsecurity(const struct inode *inode,
+ else
+ return -EOPNOTSUPP;
+
+- ilen = strlen(isp) + 1;
++ ilen = strlen(isp);
+ if (rc == 0) {
+ *buffer = isp;
+ rc = ilen;
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0037-Smack-Fix-setting-label-on-successful-file-open.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0037-Smack-Fix-setting-label-on-successful-file-open.patch
new file mode 100644
index 0000000..071b4ef
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0037-Smack-Fix-setting-label-on-successful-file-open.patch
@@ -0,0 +1,32 @@
+From c0b37ae4c6cee96e2d6ae755b32c039cba38f4b2 Mon Sep 17 00:00:00 2001
+From: Marcin Niesluchowski <m.niesluchow@samsung.com>
+Date: Tue, 19 Aug 2014 14:26:32 +0200
+Subject: [PATCH 37/54] Smack: Fix setting label on successful file open
+
+While opening with CAP_MAC_OVERRIDE file label is not set.
+Other calls may access it after CAP_MAC_OVERRIDE is dropped from process.
+
+Signed-off-by: Marcin Niesluchowski <m.niesluchow@samsung.com>
+---
+ security/smack/smack_lsm.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 1befb0a..97eab635 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -1477,8 +1477,10 @@ static int smack_file_open(struct file *file, const struct cred *cred)
+ struct smk_audit_info ad;
+ int rc;
+
+- if (smack_privileged(CAP_MAC_OVERRIDE))
++ if (smack_privileged(CAP_MAC_OVERRIDE)) {
++ file->f_security = isp->smk_inode;
+ return 0;
++ }
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0038-Smack-Bring-up-access-mode.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0038-Smack-Bring-up-access-mode.patch
new file mode 100644
index 0000000..a4aaf01
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0038-Smack-Bring-up-access-mode.patch
@@ -0,0 +1,805 @@
+From bf68e15045643cd5195e8d634712081d0b3b4904 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Wed, 27 Aug 2014 14:51:27 -0700
+Subject: [PATCH 38/54] Smack: Bring-up access mode
+
+People keep asking me for permissive mode, and I keep saying "no".
+
+Permissive mode is wrong for more reasons than I can enumerate,
+but the compelling one is that it's once on, never off.
+
+Nonetheless, there is an argument to be made for running a
+process with lots of permissions, logging which are required,
+and then locking the process down. There wasn't a way to do
+that with Smack, but this provides it.
+
+The notion is that you start out by giving the process an
+appropriate Smack label, such as "ATBirds". You create rules
+with a wide range of access and the "b" mode. On Tizen it
+might be:
+
+ ATBirds System rwxalb
+ ATBirds User rwxalb
+ ATBirds _ rwxalb
+ User ATBirds wb
+ System ATBirds wb
+
+Accesses that fail will generate audit records. Accesses
+that succeed because of rules marked with a "b" generate
+log messages identifying the rule, the program and as much
+object information as is convenient.
+
+When the system is properly configured and the programs
+brought in line with the labeling scheme the "b" mode can
+be removed from the rules. When the system is ready for
+production the facility can be configured out.
+
+This provides the developer the convenience of permissive
+mode without creating a system that looks like it is
+enforcing a policy while it is not.
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/Kconfig | 16 +++
+ security/smack/smack.h | 5 +-
+ security/smack/smack_access.c | 24 +++-
+ security/smack/smack_lsm.c | 265 ++++++++++++++++++++++++++++++++++++++----
+ security/smack/smackfs.c | 11 +-
+ 5 files changed, 294 insertions(+), 27 deletions(-)
+
+diff --git a/security/smack/Kconfig b/security/smack/Kconfig
+index e69de9c..b065f97 100644
+--- a/security/smack/Kconfig
++++ b/security/smack/Kconfig
+@@ -12,3 +12,19 @@ config SECURITY_SMACK
+ of other mandatory security schemes.
+ If you are unsure how to answer this question, answer N.
+
++config SECURITY_SMACK_BRINGUP
++ bool "Reporting on access granted by Smack rules"
++ depends on SECURITY_SMACK
++ default n
++ help
++ Enable the bring-up ("b") access mode in Smack rules.
++ When access is granted by a rule with the "b" mode a
++ message about the access requested is generated. The
++ intention is that a process can be granted a wide set
++ of access initially with the bringup mode set on the
++ rules. The developer can use the information to
++ identify which rules are necessary and what accesses
++ may be inappropriate. The developer can reduce the
++ access rule set once the behavior is well understood.
++ This is a superior mechanism to the oft abused
++ "permissive" mode of other systems.
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index 020307e..2d13d5f 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -191,6 +191,7 @@ struct smk_port_label {
+ */
+ #define MAY_TRANSMUTE 0x00001000 /* Controls directory labeling */
+ #define MAY_LOCK 0x00002000 /* Locks should be writes, but ... */
++#define MAY_BRINGUP 0x00004000 /* Report use of this rule */
+
+ /*
+ * Just to make the common cases easier to deal with
+@@ -200,9 +201,9 @@ struct smk_port_label {
+ #define MAY_NOT 0
+
+ /*
+- * Number of access types used by Smack (rwxatl)
++ * Number of access types used by Smack (rwxatlb)
+ */
+-#define SMK_NUM_ACCESS_TYPE 6
++#define SMK_NUM_ACCESS_TYPE 7
+
+ /* SMACK data */
+ struct smack_audit_data {
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index c062e94..31dbd048 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -178,16 +178,27 @@ int smk_access(struct smack_known *subject_known, char *object_label,
+ &subject_known->smk_rules);
+ rcu_read_unlock();
+
+- if (may > 0 && (request & may) == request)
++ if (may <= 0 || (request & may) != request) {
++ rc = -EACCES;
+ goto out_audit;
++ }
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++ /*
++ * Return a positive value if using bringup mode.
++ * This allows the hooks to identify checks that
++ * succeed because of "b" rules.
++ */
++ if (may & MAY_BRINGUP)
++ rc = MAY_BRINGUP;
++#endif
+
+- rc = -EACCES;
+ out_audit:
+ #ifdef CONFIG_AUDIT
+ if (a)
+ smack_log(subject_known->smk_known, object_label, request,
+ rc, a);
+ #endif
++
+ return rc;
+ }
+
+@@ -214,7 +225,7 @@ int smk_tskacc(struct task_smack *subject, char *obj_label,
+ * Check the global rule list
+ */
+ rc = smk_access(skp, obj_label, mode, NULL);
+- if (rc == 0) {
++ if (rc >= 0) {
+ /*
+ * If there is an entry in the task's rule list
+ * it can further restrict access.
+@@ -328,6 +339,13 @@ void smack_log(char *subject_label, char *object_label, int request,
+ struct smack_audit_data *sad;
+ struct common_audit_data *a = &ad->a;
+
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++ /*
++ * The result may be positive in bringup mode.
++ */
++ if (result > 0)
++ result = 0;
++#endif
+ /* check if we have to log the current event */
+ if (result != 0 && (log_policy & SMACK_AUDIT_DENIED) == 0)
+ return;
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 97eab635..6f32c67 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -54,6 +54,149 @@
+
+ LIST_HEAD(smk_ipv6_port_list);
+
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++static void smk_bu_mode(int mode, char *s)
++{
++ int i = 0;
++
++ if (mode & MAY_READ)
++ s[i++] = 'r';
++ if (mode & MAY_WRITE)
++ s[i++] = 'w';
++ if (mode & MAY_EXEC)
++ s[i++] = 'x';
++ if (mode & MAY_APPEND)
++ s[i++] = 'a';
++ if (mode & MAY_TRANSMUTE)
++ s[i++] = 't';
++ if (mode & MAY_LOCK)
++ s[i++] = 'l';
++ if (i == 0)
++ s[i++] = '-';
++ s[i] = '\0';
++}
++#endif
++
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++static int smk_bu_note(char *note, struct smack_known *sskp, char *osp,
++ int mode, int rc)
++{
++ char acc[SMK_NUM_ACCESS_TYPE + 1];
++
++ if (rc <= 0)
++ return rc;
++
++ smk_bu_mode(mode, acc);
++ pr_info("Smack Bringup: (%s %s %s) %s\n",
++ sskp->smk_known, osp, acc, note);
++ return 0;
++}
++#else
++#define smk_bu_note(note, sskp, osp, mode, RC) (RC)
++#endif
++
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++static int smk_bu_current(char *note, char *osp, int mode, int rc)
++{
++ struct task_smack *tsp = current_security();
++ char acc[SMK_NUM_ACCESS_TYPE + 1];
++
++ if (rc <= 0)
++ return rc;
++
++ smk_bu_mode(mode, acc);
++ pr_info("Smack Bringup: (%s %s %s) %s %s\n",
++ tsp->smk_task->smk_known, osp, acc, current->comm, note);
++ return 0;
++}
++#else
++#define smk_bu_current(note, osp, mode, RC) (RC)
++#endif
++
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++static int smk_bu_task(struct task_struct *otp, int mode, int rc)
++{
++ struct task_smack *tsp = current_security();
++ struct task_smack *otsp = task_security(otp);
++ char acc[SMK_NUM_ACCESS_TYPE + 1];
++
++ if (rc <= 0)
++ return rc;
++
++ smk_bu_mode(mode, acc);
++ pr_info("Smack Bringup: (%s %s %s) %s to %s\n",
++ tsp->smk_task->smk_known, otsp->smk_task->smk_known, acc,
++ current->comm, otp->comm);
++ return 0;
++}
++#else
++#define smk_bu_task(otp, mode, RC) (RC)
++#endif
++
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++static int smk_bu_inode(struct inode *inode, int mode, int rc)
++{
++ struct task_smack *tsp = current_security();
++ char acc[SMK_NUM_ACCESS_TYPE + 1];
++
++ if (rc <= 0)
++ return rc;
++
++ smk_bu_mode(mode, acc);
++ pr_info("Smack Bringup: (%s %s %s) inode=(%s %ld) %s\n",
++ tsp->smk_task->smk_known, smk_of_inode(inode), acc,
++ inode->i_sb->s_id, inode->i_ino, current->comm);
++ return 0;
++}
++#else
++#define smk_bu_inode(inode, mode, RC) (RC)
++#endif
++
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++static int smk_bu_file(struct file *file, int mode, int rc)
++{
++ struct task_smack *tsp = current_security();
++ struct smack_known *sskp = tsp->smk_task;
++ struct inode *inode = file->f_inode;
++ char acc[SMK_NUM_ACCESS_TYPE + 1];
++
++ if (rc <= 0)
++ return rc;
++
++ smk_bu_mode(mode, acc);
++ pr_info("Smack Bringup: (%s %s %s) file=(%s %ld %s) %s\n",
++ sskp->smk_known, (char *)file->f_security, acc,
++ inode->i_sb->s_id, inode->i_ino, file->f_dentry->d_name.name,
++ current->comm);
++ return 0;
++}
++#else
++#define smk_bu_file(file, mode, RC) (RC)
++#endif
++
++#ifdef CONFIG_SECURITY_SMACK_BRINGUP
++static int smk_bu_credfile(const struct cred *cred, struct file *file,
++ int mode, int rc)
++{
++ struct task_smack *tsp = cred->security;
++ struct smack_known *sskp = tsp->smk_task;
++ struct inode *inode = file->f_inode;
++ char acc[SMK_NUM_ACCESS_TYPE + 1];
++
++ if (rc <= 0)
++ return rc;
++
++ smk_bu_mode(mode, acc);
++ pr_info("Smack Bringup: (%s %s %s) file=(%s %ld %s) %s\n",
++ sskp->smk_known, smk_of_inode(inode), acc,
++ inode->i_sb->s_id, inode->i_ino, file->f_dentry->d_name.name,
++ current->comm);
++ return 0;
++}
++#else
++#define smk_bu_credfile(cred, file, mode, RC) (RC)
++#endif
++
+ /**
+ * smk_fetch - Fetch the smack label from a file.
+ * @ip: a pointer to the inode
+@@ -507,6 +650,7 @@ static int smack_sb_statfs(struct dentry *dentry)
+ smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
+
+ rc = smk_curacc(sbp->smk_floor, MAY_READ, &ad);
++ rc = smk_bu_current("statfs", sbp->smk_floor, MAY_READ, rc);
+ return rc;
+ }
+
+@@ -697,11 +841,13 @@ static int smack_inode_link(struct dentry *old_dentry, struct inode *dir,
+
+ isp = smk_of_inode(old_dentry->d_inode);
+ rc = smk_curacc(isp, MAY_WRITE, &ad);
++ rc = smk_bu_inode(old_dentry->d_inode, MAY_WRITE, rc);
+
+ if (rc == 0 && new_dentry->d_inode != NULL) {
+ isp = smk_of_inode(new_dentry->d_inode);
+ smk_ad_setfield_u_fs_path_dentry(&ad, new_dentry);
+ rc = smk_curacc(isp, MAY_WRITE, &ad);
++ rc = smk_bu_inode(new_dentry->d_inode, MAY_WRITE, rc);
+ }
+
+ return rc;
+@@ -728,6 +874,7 @@ static int smack_inode_unlink(struct inode *dir, struct dentry *dentry)
+ * You need write access to the thing you're unlinking
+ */
+ rc = smk_curacc(smk_of_inode(ip), MAY_WRITE, &ad);
++ rc = smk_bu_inode(ip, MAY_WRITE, rc);
+ if (rc == 0) {
+ /*
+ * You also need write access to the containing directory
+@@ -735,6 +882,7 @@ static int smack_inode_unlink(struct inode *dir, struct dentry *dentry)
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_INODE);
+ smk_ad_setfield_u_fs_inode(&ad, dir);
+ rc = smk_curacc(smk_of_inode(dir), MAY_WRITE, &ad);
++ rc = smk_bu_inode(dir, MAY_WRITE, rc);
+ }
+ return rc;
+ }
+@@ -759,6 +907,7 @@ static int smack_inode_rmdir(struct inode *dir, struct dentry *dentry)
+ * You need write access to the thing you're removing
+ */
+ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
++ rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
+ if (rc == 0) {
+ /*
+ * You also need write access to the containing directory
+@@ -766,6 +915,7 @@ static int smack_inode_rmdir(struct inode *dir, struct dentry *dentry)
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_INODE);
+ smk_ad_setfield_u_fs_inode(&ad, dir);
+ rc = smk_curacc(smk_of_inode(dir), MAY_WRITE, &ad);
++ rc = smk_bu_inode(dir, MAY_WRITE, rc);
+ }
+
+ return rc;
+@@ -797,11 +947,13 @@ static int smack_inode_rename(struct inode *old_inode,
+
+ isp = smk_of_inode(old_dentry->d_inode);
+ rc = smk_curacc(isp, MAY_READWRITE, &ad);
++ rc = smk_bu_inode(old_dentry->d_inode, MAY_READWRITE, rc);
+
+ if (rc == 0 && new_dentry->d_inode != NULL) {
+ isp = smk_of_inode(new_dentry->d_inode);
+ smk_ad_setfield_u_fs_path_dentry(&ad, new_dentry);
+ rc = smk_curacc(isp, MAY_READWRITE, &ad);
++ rc = smk_bu_inode(new_dentry->d_inode, MAY_READWRITE, rc);
+ }
+ return rc;
+ }
+@@ -819,6 +971,7 @@ static int smack_inode_permission(struct inode *inode, int mask)
+ {
+ struct smk_audit_info ad;
+ int no_block = mask & MAY_NOT_BLOCK;
++ int rc;
+
+ mask &= (MAY_READ|MAY_WRITE|MAY_EXEC|MAY_APPEND);
+ /*
+@@ -832,7 +985,9 @@ static int smack_inode_permission(struct inode *inode, int mask)
+ return -ECHILD;
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_INODE);
+ smk_ad_setfield_u_fs_inode(&ad, inode);
+- return smk_curacc(smk_of_inode(inode), mask, &ad);
++ rc = smk_curacc(smk_of_inode(inode), mask, &ad);
++ rc = smk_bu_inode(inode, mask, rc);
++ return rc;
+ }
+
+ /**
+@@ -845,6 +1000,8 @@ static int smack_inode_permission(struct inode *inode, int mask)
+ static int smack_inode_setattr(struct dentry *dentry, struct iattr *iattr)
+ {
+ struct smk_audit_info ad;
++ int rc;
++
+ /*
+ * Need to allow for clearing the setuid bit.
+ */
+@@ -853,7 +1010,9 @@ static int smack_inode_setattr(struct dentry *dentry, struct iattr *iattr)
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
+ smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
+
+- return smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
++ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
++ rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
++ return rc;
+ }
+
+ /**
+@@ -867,13 +1026,16 @@ static int smack_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
+ {
+ struct smk_audit_info ad;
+ struct path path;
++ int rc;
+
+ path.dentry = dentry;
+ path.mnt = mnt;
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, path);
+- return smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
++ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
++ rc = smk_bu_inode(dentry->d_inode, MAY_READ, rc);
++ return rc;
+ }
+
+ /**
+@@ -932,8 +1094,10 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
+ smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
+
+- if (rc == 0)
++ if (rc == 0) {
+ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
++ rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
++ }
+
+ return rc;
+ }
+@@ -993,11 +1157,14 @@ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name,
+ static int smack_inode_getxattr(struct dentry *dentry, const char *name)
+ {
+ struct smk_audit_info ad;
++ int rc;
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
+ smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
+
+- return smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
++ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_READ, &ad);
++ rc = smk_bu_inode(dentry->d_inode, MAY_READ, rc);
++ return rc;
+ }
+
+ /**
+@@ -1033,6 +1200,7 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name)
+ smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
+
+ rc = smk_curacc(smk_of_inode(dentry->d_inode), MAY_WRITE, &ad);
++ rc = smk_bu_inode(dentry->d_inode, MAY_WRITE, rc);
+ if (rc != 0)
+ return rc;
+
+@@ -1213,11 +1381,15 @@ static int smack_file_ioctl(struct file *file, unsigned int cmd,
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+
+- if (_IOC_DIR(cmd) & _IOC_WRITE)
++ if (_IOC_DIR(cmd) & _IOC_WRITE) {
+ rc = smk_curacc(file->f_security, MAY_WRITE, &ad);
++ rc = smk_bu_file(file, MAY_WRITE, rc);
++ }
+
+- if (rc == 0 && (_IOC_DIR(cmd) & _IOC_READ))
++ if (rc == 0 && (_IOC_DIR(cmd) & _IOC_READ)) {
+ rc = smk_curacc(file->f_security, MAY_READ, &ad);
++ rc = smk_bu_file(file, MAY_READ, rc);
++ }
+
+ return rc;
+ }
+@@ -1232,10 +1404,13 @@ static int smack_file_ioctl(struct file *file, unsigned int cmd,
+ static int smack_file_lock(struct file *file, unsigned int cmd)
+ {
+ struct smk_audit_info ad;
++ int rc;
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+- return smk_curacc(file->f_security, MAY_LOCK, &ad);
++ rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
++ rc = smk_bu_file(file, MAY_LOCK, rc);
++ return rc;
+ }
+
+ /**
+@@ -1265,12 +1440,14 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd,
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+ rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
++ rc = smk_bu_file(file, MAY_LOCK, rc);
+ break;
+ case F_SETOWN:
+ case F_SETSIG:
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+ rc = smk_curacc(file->f_security, MAY_WRITE, &ad);
++ rc = smk_bu_file(file, MAY_WRITE, rc);
+ break;
+ default:
+ break;
+@@ -1425,6 +1602,7 @@ static int smack_file_send_sigiotask(struct task_struct *tsk,
+ /* we don't log here as rc can be overriden */
+ skp = smk_find_entry(file->f_security);
+ rc = smk_access(skp, tkp->smk_known, MAY_WRITE, NULL);
++ rc = smk_bu_note("sigiotask", skp, tkp->smk_known, MAY_WRITE, rc);
+ if (rc != 0 && has_capability(tsk, CAP_MAC_OVERRIDE))
+ rc = 0;
+
+@@ -1442,6 +1620,7 @@ static int smack_file_send_sigiotask(struct task_struct *tsk,
+ */
+ static int smack_file_receive(struct file *file)
+ {
++ int rc;
+ int may = 0;
+ struct smk_audit_info ad;
+
+@@ -1455,7 +1634,9 @@ static int smack_file_receive(struct file *file)
+ if (file->f_mode & FMODE_WRITE)
+ may |= MAY_WRITE;
+
+- return smk_curacc(file->f_security, may, &ad);
++ rc = smk_curacc(file->f_security, may, &ad);
++ rc = smk_bu_file(file, may, rc);
++ return rc;
+ }
+
+ /**
+@@ -1485,6 +1666,7 @@ static int smack_file_open(struct file *file, const struct cred *cred)
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+ rc = smk_access(tsp->smk_task, isp->smk_inode, MAY_READ, &ad);
++ rc = smk_bu_credfile(cred, file, MAY_READ, rc);
+ if (rc == 0)
+ file->f_security = isp->smk_inode;
+
+@@ -1641,10 +1823,13 @@ static int smk_curacc_on_task(struct task_struct *p, int access,
+ {
+ struct smk_audit_info ad;
+ struct smack_known *skp = smk_of_task(task_security(p));
++ int rc;
+
+ smk_ad_init(&ad, caller, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, p);
+- return smk_curacc(skp->smk_known, access, &ad);
++ rc = smk_curacc(skp->smk_known, access, &ad);
++ rc = smk_bu_task(p, access, rc);
++ return rc;
+ }
+
+ /**
+@@ -1798,6 +1983,7 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
+ struct smk_audit_info ad;
+ struct smack_known *skp;
+ struct smack_known *tkp = smk_of_task(task_security(p));
++ int rc;
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, p);
+@@ -1805,15 +1991,20 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
+ * Sending a signal requires that the sender
+ * can write the receiver.
+ */
+- if (secid == 0)
+- return smk_curacc(tkp->smk_known, MAY_WRITE, &ad);
++ if (secid == 0) {
++ rc = smk_curacc(tkp->smk_known, MAY_WRITE, &ad);
++ rc = smk_bu_task(p, MAY_WRITE, rc);
++ return rc;
++ }
+ /*
+ * If the secid isn't 0 we're dealing with some USB IO
+ * specific behavior. This is not clean. For one thing
+ * we can't take privilege into account.
+ */
+ skp = smack_from_secid(secid);
+- return smk_access(skp, tkp->smk_known, MAY_WRITE, &ad);
++ rc = smk_access(skp, tkp->smk_known, MAY_WRITE, &ad);
++ rc = smk_bu_note("USB signal", skp, tkp->smk_known, MAY_WRITE, rc);
++ return rc;
+ }
+
+ /**
+@@ -2005,6 +2196,7 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
+ sk_lbl = SMACK_UNLABELED_SOCKET;
+ skp = ssp->smk_out;
+ rc = smk_access(skp, hostsp, MAY_WRITE, &ad);
++ rc = smk_bu_note("IPv4 host check", skp, hostsp, MAY_WRITE, rc);
+ } else {
+ sk_lbl = SMACK_CIPSO_SOCKET;
+ rc = 0;
+@@ -2107,6 +2299,7 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr_in6 *address,
+ unsigned short port = 0;
+ char *object;
+ struct smk_audit_info ad;
++ int rc;
+ #ifdef CONFIG_AUDIT
+ struct lsm_network_audit net;
+ #endif
+@@ -2160,7 +2353,9 @@ auditout:
+ else
+ ad.a.u.net->v6info.daddr = address->sin6_addr;
+ #endif
+- return smk_access(skp, object, MAY_WRITE, &ad);
++ rc = smk_access(skp, object, MAY_WRITE, &ad);
++ rc = smk_bu_note("IPv6 port check", skp, object, MAY_WRITE, rc);
++ return rc;
+ }
+
+ /**
+@@ -2399,12 +2594,15 @@ static int smk_curacc_shm(struct shmid_kernel *shp, int access)
+ {
+ char *ssp = smack_of_shm(shp);
+ struct smk_audit_info ad;
++ int rc;
+
+ #ifdef CONFIG_AUDIT
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
+ ad.a.u.ipc_id = shp->shm_perm.id;
+ #endif
+- return smk_curacc(ssp, access, &ad);
++ rc = smk_curacc(ssp, access, &ad);
++ rc = smk_bu_current("shm", ssp, access, rc);
++ return rc;
+ }
+
+ /**
+@@ -2523,12 +2721,15 @@ static int smk_curacc_sem(struct sem_array *sma, int access)
+ {
+ char *ssp = smack_of_sem(sma);
+ struct smk_audit_info ad;
++ int rc;
+
+ #ifdef CONFIG_AUDIT
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
+ ad.a.u.ipc_id = sma->sem_perm.id;
+ #endif
+- return smk_curacc(ssp, access, &ad);
++ rc = smk_curacc(ssp, access, &ad);
++ rc = smk_bu_current("sem", ssp, access, rc);
++ return rc;
+ }
+
+ /**
+@@ -2653,12 +2854,15 @@ static int smk_curacc_msq(struct msg_queue *msq, int access)
+ {
+ char *msp = smack_of_msq(msq);
+ struct smk_audit_info ad;
++ int rc;
+
+ #ifdef CONFIG_AUDIT
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
+ ad.a.u.ipc_id = msq->q_perm.id;
+ #endif
+- return smk_curacc(msp, access, &ad);
++ rc = smk_curacc(msp, access, &ad);
++ rc = smk_bu_current("msq", msp, access, rc);
++ return rc;
+ }
+
+ /**
+@@ -2754,12 +2958,15 @@ static int smack_ipc_permission(struct kern_ipc_perm *ipp, short flag)
+ char *isp = ipp->security;
+ int may = smack_flags_to_may(flag);
+ struct smk_audit_info ad;
++ int rc;
+
+ #ifdef CONFIG_AUDIT
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
+ ad.a.u.ipc_id = ipp->id;
+ #endif
+- return smk_curacc(isp, may, &ad);
++ rc = smk_curacc(isp, may, &ad);
++ rc = smk_bu_current("svipc", isp, may, rc);
++ return rc;
+ }
+
+ /**
+@@ -3092,8 +3299,13 @@ static int smack_unix_stream_connect(struct sock *sock,
+ smk_ad_setfield_u_net_sk(&ad, other);
+ #endif
+ rc = smk_access(skp, okp->smk_known, MAY_WRITE, &ad);
+- if (rc == 0)
++ rc = smk_bu_note("UDS connect", skp, okp->smk_known,
++ MAY_WRITE, rc);
++ if (rc == 0) {
+ rc = smk_access(okp, okp->smk_known, MAY_WRITE, NULL);
++ rc = smk_bu_note("UDS connect", okp, okp->smk_known,
++ MAY_WRITE, rc);
++ }
+ }
+
+ /*
+@@ -3121,6 +3333,7 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
+ struct socket_smack *osp = other->sk->sk_security;
+ struct smack_known *skp;
+ struct smk_audit_info ad;
++ int rc;
+
+ #ifdef CONFIG_AUDIT
+ struct lsm_network_audit net;
+@@ -3133,7 +3346,10 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
+ return 0;
+
+ skp = ssp->smk_out;
+- return smk_access(skp, osp->smk_in->smk_known, MAY_WRITE, &ad);
++ rc = smk_access(skp, osp->smk_in->smk_known, MAY_WRITE, &ad);
++ rc = smk_bu_note("UDS send", skp, osp->smk_in->smk_known,
++ MAY_WRITE, rc);
++ return rc;
+ }
+
+ /**
+@@ -3348,6 +3564,8 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ * for networking.
+ */
+ rc = smk_access(skp, ssp->smk_in->smk_known, MAY_WRITE, &ad);
++ rc = smk_bu_note("IPv4 delivery", skp, ssp->smk_in->smk_known,
++ MAY_WRITE, rc);
+ if (rc != 0)
+ netlbl_skbuff_err(skb, rc, 0);
+ break;
+@@ -3528,6 +3746,8 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ * here. Read access is not required.
+ */
+ rc = smk_access(skp, ssp->smk_in->smk_known, MAY_WRITE, &ad);
++ rc = smk_bu_note("IPv4 connect", skp, ssp->smk_in->smk_known,
++ MAY_WRITE, rc);
+ if (rc != 0)
+ return rc;
+
+@@ -3632,6 +3852,7 @@ static int smack_key_permission(key_ref_t key_ref,
+ struct smk_audit_info ad;
+ struct smack_known *tkp = smk_of_task(cred->security);
+ int request = 0;
++ int rc;
+
+ keyp = key_ref_to_ptr(key_ref);
+ if (keyp == NULL)
+@@ -3656,7 +3877,9 @@ static int smack_key_permission(key_ref_t key_ref,
+ request = MAY_READ;
+ if (perm & (KEY_WRITE | KEY_LINK | KEY_SETATTR))
+ request = MAY_WRITE;
+- return smk_access(tkp, keyp->security, request, &ad);
++ rc = smk_access(tkp, keyp->security, request, &ad);
++ rc = smk_bu_note("key access", tkp, keyp->security, request, rc);
++ return rc;
+ }
+ #endif /* CONFIG_KEYS */
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index 585bea0..cf4e16b 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -304,6 +304,10 @@ static int smk_perm_from_str(const char *string)
+ case 'L':
+ perm |= MAY_LOCK;
+ break;
++ case 'b':
++ case 'B':
++ perm |= MAY_BRINGUP;
++ break;
+ default:
+ return perm;
+ }
+@@ -616,6 +620,8 @@ static void smk_rule_show(struct seq_file *s, struct smack_rule *srp, int max)
+ seq_putc(s, 't');
+ if (srp->smk_access & MAY_LOCK)
+ seq_putc(s, 'l');
++ if (srp->smk_access & MAY_BRINGUP)
++ seq_putc(s, 'b');
+
+ seq_putc(s, '\n');
+ }
+@@ -1880,7 +1886,10 @@ static ssize_t smk_user_access(struct file *file, const char __user *buf,
+ else if (res != -ENOENT)
+ return -EINVAL;
+
+- data[0] = res == 0 ? '1' : '0';
++ /*
++ * smk_access() can return a value > 0 in the "bringup" case.
++ */
++ data[0] = res >= 0 ? '1' : '0';
+ data[1] = '\0';
+
+ simple_transaction_set(file, 2);
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0039-Small-fixes-in-comments-describing-function-paramete.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0039-Small-fixes-in-comments-describing-function-paramete.patch
new file mode 100644
index 0000000..e8477ff
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0039-Small-fixes-in-comments-describing-function-paramete.patch
@@ -0,0 +1,63 @@
+From 59332d77a0cd1574189276f202cc1df7478f5620 Mon Sep 17 00:00:00 2001
+From: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+Date: Fri, 29 Aug 2014 17:02:53 +0200
+Subject: [PATCH 39/54] Small fixes in comments describing function parameters
+
+Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+---
+ security/smack/smack_lsm.c | 18 +++++++++---------
+ 1 file changed, 9 insertions(+), 9 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 6f32c67..a510828 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -771,8 +771,8 @@ static void smack_inode_free_security(struct inode *inode)
+
+ /**
+ * smack_inode_init_security - copy out the smack from an inode
+- * @inode: the inode
+- * @dir: unused
++ * @inode: the newly created inode
++ * @dir: containing directory object
+ * @qstr: unused
+ * @name: where to put the attribute name
+ * @value: where to put the attribute value
+@@ -923,10 +923,10 @@ static int smack_inode_rmdir(struct inode *dir, struct dentry *dentry)
+
+ /**
+ * smack_inode_rename - Smack check on rename
+- * @old_inode: the old directory
+- * @old_dentry: unused
+- * @new_inode: the new directory
+- * @new_dentry: unused
++ * @old_inode: unused
++ * @old_dentry: the old object
++ * @new_inode: unused
++ * @new_dentry: the new object
+ *
+ * Read and write access is required on both the old and
+ * new directories.
+@@ -1017,7 +1017,7 @@ static int smack_inode_setattr(struct dentry *dentry, struct iattr *iattr)
+
+ /**
+ * smack_inode_getattr - Smack check for getting attributes
+- * @mnt: unused
++ * @mnt: vfsmount of the object
+ * @dentry: the object
+ *
+ * Returns 0 if access is permitted, an error code otherwise
+@@ -1042,8 +1042,8 @@ static int smack_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
+ * smack_inode_setxattr - Smack check for setting xattrs
+ * @dentry: the object
+ * @name: name of the attribute
+- * @value: unused
+- * @size: unused
++ * @value: value of the attribute
++ * @size: size of the value
+ * @flags: unused
+ *
+ * This protects the Smack attribute explicitly.
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0040-Fix-a-bidirectional-UDS-connect-check-typo.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0040-Fix-a-bidirectional-UDS-connect-check-typo.patch
new file mode 100644
index 0000000..81559c7
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0040-Fix-a-bidirectional-UDS-connect-check-typo.patch
@@ -0,0 +1,32 @@
+From 91bd808e9e5b10a9116cec72b393621bd40e772e Mon Sep 17 00:00:00 2001
+From: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+Date: Fri, 29 Aug 2014 17:02:54 +0200
+Subject: [PATCH 40/54] Fix a bidirectional UDS connect check typo
+
+The 54e70ec5eb090193b03e69d551fa6771a5a217c4 commit introduced a
+bidirectional check that should have checked for mutual WRITE access
+between two labels. Due to a typo the second check was incorrect.
+
+Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+---
+ security/smack/smack_lsm.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index a510828..1c98a28 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3302,8 +3302,8 @@ static int smack_unix_stream_connect(struct sock *sock,
+ rc = smk_bu_note("UDS connect", skp, okp->smk_known,
+ MAY_WRITE, rc);
+ if (rc == 0) {
+- rc = smk_access(okp, okp->smk_known, MAY_WRITE, NULL);
+- rc = smk_bu_note("UDS connect", okp, okp->smk_known,
++ rc = smk_access(okp, skp->smk_known, MAY_WRITE, NULL);
++ rc = smk_bu_note("UDS connect", okp, skp->smk_known,
+ MAY_WRITE, rc);
+ }
+ }
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0041-Make-Smack-operate-on-smack_known-struct-where-it-st.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0041-Make-Smack-operate-on-smack_known-struct-where-it-st.patch
new file mode 100644
index 0000000..0ffc9a4
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0041-Make-Smack-operate-on-smack_known-struct-where-it-st.patch
@@ -0,0 +1,1461 @@
+From 77d870a0af741cbd7423a32228540fe5cf3b0a41 Mon Sep 17 00:00:00 2001
+From: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+Date: Fri, 29 Aug 2014 17:02:55 +0200
+Subject: [PATCH 41/54] Make Smack operate on smack_known struct where it still
+ used char*
+
+Smack used to use a mix of smack_known struct and char* throughout its
+APIs and implementation. This patch unifies the behaviour and makes it
+store and operate exclusively on smack_known struct pointers when managing
+labels.
+
+Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+
+Conflicts:
+ security/smack/smack_access.c
+ security/smack/smack_lsm.c
+---
+ security/smack/smack.h | 34 ++---
+ security/smack/smack_access.c | 94 +++++--------
+ security/smack/smack_lsm.c | 299 +++++++++++++++++++++---------------------
+ security/smack/smackfs.c | 61 +++++----
+ 4 files changed, 233 insertions(+), 255 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index 2d13d5f..b828a37 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -71,11 +71,11 @@ struct smack_known {
+ #define SMK_CIPSOLEN 24
+
+ struct superblock_smack {
+- char *smk_root;
+- char *smk_floor;
+- char *smk_hat;
+- char *smk_default;
+- int smk_initialized;
++ struct smack_known *smk_root;
++ struct smack_known *smk_floor;
++ struct smack_known *smk_hat;
++ struct smack_known *smk_default;
++ int smk_initialized;
+ };
+
+ struct socket_smack {
+@@ -88,7 +88,7 @@ struct socket_smack {
+ * Inode smack data
+ */
+ struct inode_smack {
+- char *smk_inode; /* label of the fso */
++ struct smack_known *smk_inode; /* label of the fso */
+ struct smack_known *smk_task; /* label of the task */
+ struct smack_known *smk_mmap; /* label of the mmap domain */
+ struct mutex smk_lock; /* initialization lock */
+@@ -112,7 +112,7 @@ struct task_smack {
+ struct smack_rule {
+ struct list_head list;
+ struct smack_known *smk_subject;
+- char *smk_object;
++ struct smack_known *smk_object;
+ int smk_access;
+ };
+
+@@ -123,7 +123,7 @@ struct smk_netlbladdr {
+ struct list_head list;
+ struct sockaddr_in smk_host; /* network address */
+ struct in_addr smk_mask; /* network mask */
+- char *smk_label; /* label */
++ struct smack_known *smk_label; /* label */
+ };
+
+ /*
+@@ -227,23 +227,23 @@ struct smk_audit_info {
+ /*
+ * These functions are in smack_lsm.c
+ */
+-struct inode_smack *new_inode_smack(char *);
++struct inode_smack *new_inode_smack(struct smack_known *);
+
+ /*
+ * These functions are in smack_access.c
+ */
+ int smk_access_entry(char *, char *, struct list_head *);
+-int smk_access(struct smack_known *, char *, int, struct smk_audit_info *);
+-int smk_tskacc(struct task_smack *, char *, u32, struct smk_audit_info *);
+-int smk_curacc(char *, u32, struct smk_audit_info *);
++int smk_access(struct smack_known *, struct smack_known *,
++ int, struct smk_audit_info *);
++int smk_tskacc(struct task_smack *, struct smack_known *,
++ u32, struct smk_audit_info *);
++int smk_curacc(struct smack_known *, u32, struct smk_audit_info *);
+ struct smack_known *smack_from_secid(const u32);
+ char *smk_parse_smack(const char *string, int len);
+ int smk_netlbl_mls(int, char *, struct netlbl_lsm_secattr *, int);
+-char *smk_import(const char *, int);
+ struct smack_known *smk_import_entry(const char *, int);
+ void smk_insert_entry(struct smack_known *skp);
+ struct smack_known *smk_find_entry(const char *);
+-u32 smack_to_secid(const char *);
+
+ /*
+ * Shared data.
+@@ -253,7 +253,7 @@ extern int smack_cipso_mapped;
+ extern struct smack_known *smack_net_ambient;
+ extern struct smack_known *smack_onlycap;
+ extern struct smack_known *smack_syslog_label;
+-extern const char *smack_cipso_option;
++extern struct smack_known smack_cipso_option;
+ extern int smack_ptrace_rule;
+
+ extern struct smack_known smack_known_floor;
+@@ -282,9 +282,9 @@ static inline int smk_inode_transmutable(const struct inode *isp)
+ }
+
+ /*
+- * Present a pointer to the smack label in an inode blob.
++ * Present a pointer to the smack label entry in an inode blob.
+ */
+-static inline char *smk_of_inode(const struct inode *isp)
++static inline struct smack_known *smk_of_inode(const struct inode *isp)
+ {
+ struct inode_smack *sip = isp->i_security;
+ return sip->smk_inode;
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index 31dbd048..c6c9245 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -94,7 +94,7 @@ int smk_access_entry(char *subject_label, char *object_label,
+ struct smack_rule *srp;
+
+ list_for_each_entry_rcu(srp, rule_list, list) {
+- if (srp->smk_object == object_label &&
++ if (srp->smk_object->smk_known == object_label &&
+ srp->smk_subject->smk_known == subject_label) {
+ may = srp->smk_access;
+ break;
+@@ -111,8 +111,8 @@ int smk_access_entry(char *subject_label, char *object_label,
+
+ /**
+ * smk_access - determine if a subject has a specific access to an object
+- * @subject_known: a pointer to the subject's Smack label entry
+- * @object_label: a pointer to the object's Smack label
++ * @subject: a pointer to the subject's Smack label entry
++ * @object: a pointer to the object's Smack label entry
+ * @request: the access requested, in "MAY" format
+ * @a : a pointer to the audit data
+ *
+@@ -122,8 +122,8 @@ int smk_access_entry(char *subject_label, char *object_label,
+ *
+ * Smack labels are shared on smack_list
+ */
+-int smk_access(struct smack_known *subject_known, char *object_label,
+- int request, struct smk_audit_info *a)
++int smk_access(struct smack_known *subject, struct smack_known *object,
++ int request, struct smk_audit_info *a)
+ {
+ int may = MAY_NOT;
+ int rc = 0;
+@@ -133,7 +133,7 @@ int smk_access(struct smack_known *subject_known, char *object_label,
+ *
+ * A star subject can't access any object.
+ */
+- if (subject_known == &smack_known_star) {
++ if (subject == &smack_known_star) {
+ rc = -EACCES;
+ goto out_audit;
+ }
+@@ -142,28 +142,28 @@ int smk_access(struct smack_known *subject_known, char *object_label,
+ * Tasks cannot be assigned the internet label.
+ * An internet subject can access any object.
+ */
+- if (object_label == smack_known_web.smk_known ||
+- subject_known == &smack_known_web)
++ if (object == &smack_known_web ||
++ subject == &smack_known_web)
+ goto out_audit;
+ /*
+ * A star object can be accessed by any subject.
+ */
+- if (object_label == smack_known_star.smk_known)
++ if (object == &smack_known_star)
+ goto out_audit;
+ /*
+ * An object can be accessed in any way by a subject
+ * with the same label.
+ */
+- if (subject_known->smk_known == object_label)
++ if (subject->smk_known == object->smk_known)
+ goto out_audit;
+ /*
+ * A hat subject can read any object.
+ * A floor object can be read by any subject.
+ */
+ if ((request & MAY_ANYREAD) == request) {
+- if (object_label == smack_known_floor.smk_known)
++ if (object == &smack_known_floor)
+ goto out_audit;
+- if (subject_known == &smack_known_hat)
++ if (subject == &smack_known_hat)
+ goto out_audit;
+ }
+ /*
+@@ -174,8 +174,8 @@ int smk_access(struct smack_known *subject_known, char *object_label,
+ * indicates there is no entry for this pair.
+ */
+ rcu_read_lock();
+- may = smk_access_entry(subject_known->smk_known, object_label,
+- &subject_known->smk_rules);
++ may = smk_access_entry(subject->smk_known, object->smk_known,
++ &subject->smk_rules);
+ rcu_read_unlock();
+
+ if (may <= 0 || (request & may) != request) {
+@@ -195,8 +195,8 @@ int smk_access(struct smack_known *subject_known, char *object_label,
+ out_audit:
+ #ifdef CONFIG_AUDIT
+ if (a)
+- smack_log(subject_known->smk_known, object_label, request,
+- rc, a);
++ smack_log(subject->smk_known, object->smk_known,
++ request, rc, a);
+ #endif
+
+ return rc;
+@@ -204,8 +204,8 @@ out_audit:
+
+ /**
+ * smk_tskacc - determine if a task has a specific access to an object
+- * @tsp: a pointer to the subject task
+- * @obj_label: a pointer to the object's Smack label
++ * @tsp: a pointer to the subject's task
++ * @obj_known: a pointer to the object's label entry
+ * @mode: the access requested, in "MAY" format
+ * @a : common audit data
+ *
+@@ -214,24 +214,25 @@ out_audit:
+ * non zero otherwise. It allows that the task may have the capability
+ * to override the rules.
+ */
+-int smk_tskacc(struct task_smack *subject, char *obj_label,
++int smk_tskacc(struct task_smack *tsp, struct smack_known *obj_known,
+ u32 mode, struct smk_audit_info *a)
+ {
+- struct smack_known *skp = smk_of_task(subject);
++ struct smack_known *sbj_known = smk_of_task(tsp);
+ int may;
+ int rc;
+
+ /*
+ * Check the global rule list
+ */
+- rc = smk_access(skp, obj_label, mode, NULL);
++ rc = smk_access(sbj_known, obj_known, mode, NULL);
+ if (rc >= 0) {
+ /*
+ * If there is an entry in the task's rule list
+ * it can further restrict access.
+ */
+- may = smk_access_entry(skp->smk_known, obj_label,
+- &subject->smk_rules);
++ may = smk_access_entry(sbj_known->smk_known,
++ obj_known->smk_known,
++ &tsp->smk_rules);
+ if (may < 0)
+ goto out_audit;
+ if ((mode & may) == mode)
+@@ -248,14 +249,15 @@ int smk_tskacc(struct task_smack *subject, char *obj_label,
+ out_audit:
+ #ifdef CONFIG_AUDIT
+ if (a)
+- smack_log(skp->smk_known, obj_label, mode, rc, a);
++ smack_log(sbj_known->smk_known, obj_known->smk_known,
++ mode, rc, a);
+ #endif
+ return rc;
+ }
+
+ /**
+ * smk_curacc - determine if current has a specific access to an object
+- * @obj_label: a pointer to the object's Smack label
++ * @obj_known: a pointer to the object's Smack label entry
+ * @mode: the access requested, in "MAY" format
+ * @a : common audit data
+ *
+@@ -264,11 +266,12 @@ out_audit:
+ * non zero otherwise. It allows that current may have the capability
+ * to override the rules.
+ */
+-int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
++int smk_curacc(struct smack_known *obj_known,
++ u32 mode, struct smk_audit_info *a)
+ {
+ struct task_smack *tsp = current_security();
+
+- return smk_tskacc(tsp, obj_label, mode, a);
++ return smk_tskacc(tsp, obj_known, mode, a);
+ }
+
+ #ifdef CONFIG_AUDIT
+@@ -565,27 +568,6 @@ unlockout:
+ }
+
+ /**
+- * smk_import - import a smack label
+- * @string: a text string that might be a Smack label
+- * @len: the maximum size, or zero if it is NULL terminated.
+- *
+- * Returns a pointer to the label in the label list that
+- * matches the passed string, adding it if necessary.
+- */
+-char *smk_import(const char *string, int len)
+-{
+- struct smack_known *skp;
+-
+- /* labels cannot begin with a '-' */
+- if (string[0] == '-')
+- return NULL;
+- skp = smk_import_entry(string, len);
+- if (skp == NULL)
+- return NULL;
+- return skp->smk_known;
+-}
+-
+-/**
+ * smack_from_secid - find the Smack label associated with a secid
+ * @secid: an integer that might be associated with a Smack label
+ *
+@@ -611,19 +593,3 @@ struct smack_known *smack_from_secid(const u32 secid)
+ rcu_read_unlock();
+ return &smack_known_invalid;
+ }
+-
+-/**
+- * smack_to_secid - find the secid associated with a Smack label
+- * @smack: the Smack label
+- *
+- * Returns the appropriate secid if there is one,
+- * otherwise 0
+- */
+-u32 smack_to_secid(const char *smack)
+-{
+- struct smack_known *skp = smk_find_entry(smack);
+-
+- if (skp == NULL)
+- return 0;
+- return skp->smk_secid;
+-}
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 1c98a28..2f62a68 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -78,8 +78,8 @@ static void smk_bu_mode(int mode, char *s)
+ #endif
+
+ #ifdef CONFIG_SECURITY_SMACK_BRINGUP
+-static int smk_bu_note(char *note, struct smack_known *sskp, char *osp,
+- int mode, int rc)
++static int smk_bu_note(char *note, struct smack_known *sskp,
++ struct smack_known *oskp, int mode, int rc)
+ {
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+@@ -88,15 +88,16 @@ static int smk_bu_note(char *note, struct smack_known *sskp, char *osp,
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) %s\n",
+- sskp->smk_known, osp, acc, note);
++ sskp->smk_known, oskp->smk_known, acc, note);
+ return 0;
+ }
+ #else
+-#define smk_bu_note(note, sskp, osp, mode, RC) (RC)
++#define smk_bu_note(note, sskp, oskp, mode, RC) (RC)
+ #endif
+
+ #ifdef CONFIG_SECURITY_SMACK_BRINGUP
+-static int smk_bu_current(char *note, char *osp, int mode, int rc)
++static int smk_bu_current(char *note, struct smack_known *oskp,
++ int mode, int rc)
+ {
+ struct task_smack *tsp = current_security();
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+@@ -106,11 +107,12 @@ static int smk_bu_current(char *note, char *osp, int mode, int rc)
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) %s %s\n",
+- tsp->smk_task->smk_known, osp, acc, current->comm, note);
++ tsp->smk_task->smk_known, oskp->smk_known,
++ acc, current->comm, note);
+ return 0;
+ }
+ #else
+-#define smk_bu_current(note, osp, mode, RC) (RC)
++#define smk_bu_current(note, oskp, mode, RC) (RC)
+ #endif
+
+ #ifdef CONFIG_SECURITY_SMACK_BRINGUP
+@@ -144,7 +146,7 @@ static int smk_bu_inode(struct inode *inode, int mode, int rc)
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) inode=(%s %ld) %s\n",
+- tsp->smk_task->smk_known, smk_of_inode(inode), acc,
++ tsp->smk_task->smk_known, smk_of_inode(inode)->smk_known, acc,
+ inode->i_sb->s_id, inode->i_ino, current->comm);
+ return 0;
+ }
+@@ -188,7 +190,7 @@ static int smk_bu_credfile(const struct cred *cred, struct file *file,
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) file=(%s %ld %s) %s\n",
+- sskp->smk_known, smk_of_inode(inode), acc,
++ sskp->smk_known, smk_of_inode(inode)->smk_known, acc,
+ inode->i_sb->s_id, inode->i_ino, file->f_dentry->d_name.name,
+ current->comm);
+ return 0;
+@@ -230,11 +232,11 @@ static struct smack_known *smk_fetch(const char *name, struct inode *ip,
+
+ /**
+ * new_inode_smack - allocate an inode security blob
+- * @smack: a pointer to the Smack label to use in the blob
++ * @skp: a pointer to the Smack label entry to use in the blob
+ *
+ * Returns the new blob or NULL if there's no memory available
+ */
+-struct inode_smack *new_inode_smack(char *smack)
++struct inode_smack *new_inode_smack(struct smack_known *skp)
+ {
+ struct inode_smack *isp;
+
+@@ -242,7 +244,7 @@ struct inode_smack *new_inode_smack(char *smack)
+ if (isp == NULL)
+ return NULL;
+
+- isp->smk_inode = smack;
++ isp->smk_inode = skp;
+ isp->smk_flags = 0;
+ mutex_init(&isp->smk_lock);
+
+@@ -321,20 +323,20 @@ static inline unsigned int smk_ptrace_mode(unsigned int mode)
+ /**
+ * smk_ptrace_rule_check - helper for ptrace access
+ * @tracer: tracer process
+- * @tracee_label: label of the process that's about to be traced,
+- * the pointer must originate from smack structures
++ * @tracee_known: label entry of the process that's about to be traced
+ * @mode: ptrace attachment mode (PTRACE_MODE_*)
+ * @func: name of the function that called us, used for audit
+ *
+ * Returns 0 on access granted, -error on error
+ */
+-static int smk_ptrace_rule_check(struct task_struct *tracer, char *tracee_label,
++static int smk_ptrace_rule_check(struct task_struct *tracer,
++ struct smack_known *tracee_known,
+ unsigned int mode, const char *func)
+ {
+ int rc;
+ struct smk_audit_info ad, *saip = NULL;
+ struct task_smack *tsp;
+- struct smack_known *skp;
++ struct smack_known *tracer_known;
+
+ if ((mode & PTRACE_MODE_NOAUDIT) == 0) {
+ smk_ad_init(&ad, func, LSM_AUDIT_DATA_TASK);
+@@ -343,12 +345,12 @@ static int smk_ptrace_rule_check(struct task_struct *tracer, char *tracee_label,
+ }
+
+ tsp = task_security(tracer);
+- skp = smk_of_task(tsp);
++ tracer_known = smk_of_task(tsp);
+
+ if ((mode & PTRACE_MODE_ATTACH) &&
+ (smack_ptrace_rule == SMACK_PTRACE_EXACT ||
+ smack_ptrace_rule == SMACK_PTRACE_DRACONIAN)) {
+- if (skp->smk_known == tracee_label)
++ if (tracer_known->smk_known == tracee_known->smk_known)
+ rc = 0;
+ else if (smack_ptrace_rule == SMACK_PTRACE_DRACONIAN)
+ rc = -EACCES;
+@@ -358,13 +360,15 @@ static int smk_ptrace_rule_check(struct task_struct *tracer, char *tracee_label,
+ rc = -EACCES;
+
+ if (saip)
+- smack_log(skp->smk_known, tracee_label, 0, rc, saip);
++ smack_log(tracer_known->smk_known,
++ tracee_known->smk_known,
++ 0, rc, saip);
+
+ return rc;
+ }
+
+ /* In case of rule==SMACK_PTRACE_DEFAULT or mode==PTRACE_MODE_READ */
+- rc = smk_tskacc(tsp, tracee_label, smk_ptrace_mode(mode), saip);
++ rc = smk_tskacc(tsp, tracee_known, smk_ptrace_mode(mode), saip);
+ return rc;
+ }
+
+@@ -393,7 +397,7 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
+
+ skp = smk_of_task(task_security(ctp));
+
+- rc = smk_ptrace_rule_check(current, skp->smk_known, mode, __func__);
++ rc = smk_ptrace_rule_check(current, skp, mode, __func__);
+ return rc;
+ }
+
+@@ -416,8 +420,7 @@ static int smack_ptrace_traceme(struct task_struct *ptp)
+
+ skp = smk_of_task(current_security());
+
+- rc = smk_ptrace_rule_check(ptp, skp->smk_known,
+- PTRACE_MODE_ATTACH, __func__);
++ rc = smk_ptrace_rule_check(ptp, skp, PTRACE_MODE_ATTACH, __func__);
+ return rc;
+ }
+
+@@ -461,10 +464,10 @@ static int smack_sb_alloc_security(struct super_block *sb)
+ if (sbsp == NULL)
+ return -ENOMEM;
+
+- sbsp->smk_root = smack_known_floor.smk_known;
+- sbsp->smk_default = smack_known_floor.smk_known;
+- sbsp->smk_floor = smack_known_floor.smk_known;
+- sbsp->smk_hat = smack_known_hat.smk_known;
++ sbsp->smk_root = &smack_known_floor;
++ sbsp->smk_default = &smack_known_floor;
++ sbsp->smk_floor = &smack_known_floor;
++ sbsp->smk_hat = &smack_known_hat;
+ /*
+ * smk_initialized will be zero from kzalloc.
+ */
+@@ -548,7 +551,6 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+ struct smack_known *skp;
+ char *op;
+ char *commap;
+- char *nsp;
+ int transmute = 0;
+ int specified = 0;
+
+@@ -564,38 +566,38 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+
+ if (strncmp(op, SMK_FSHAT, strlen(SMK_FSHAT)) == 0) {
+ op += strlen(SMK_FSHAT);
+- nsp = smk_import(op, 0);
+- if (nsp != NULL) {
+- sp->smk_hat = nsp;
++ skp = smk_import_entry(op, 0);
++ if (skp != NULL) {
++ sp->smk_hat = skp;
+ specified = 1;
+ }
+ } else if (strncmp(op, SMK_FSFLOOR, strlen(SMK_FSFLOOR)) == 0) {
+ op += strlen(SMK_FSFLOOR);
+- nsp = smk_import(op, 0);
+- if (nsp != NULL) {
+- sp->smk_floor = nsp;
++ skp = smk_import_entry(op, 0);
++ if (skp != NULL) {
++ sp->smk_floor = skp;
+ specified = 1;
+ }
+ } else if (strncmp(op, SMK_FSDEFAULT,
+ strlen(SMK_FSDEFAULT)) == 0) {
+ op += strlen(SMK_FSDEFAULT);
+- nsp = smk_import(op, 0);
+- if (nsp != NULL) {
+- sp->smk_default = nsp;
++ skp = smk_import_entry(op, 0);
++ if (skp != NULL) {
++ sp->smk_default = skp;
+ specified = 1;
+ }
+ } else if (strncmp(op, SMK_FSROOT, strlen(SMK_FSROOT)) == 0) {
+ op += strlen(SMK_FSROOT);
+- nsp = smk_import(op, 0);
+- if (nsp != NULL) {
+- sp->smk_root = nsp;
++ skp = smk_import_entry(op, 0);
++ if (skp != NULL) {
++ sp->smk_root = skp;
+ specified = 1;
+ }
+ } else if (strncmp(op, SMK_FSTRANS, strlen(SMK_FSTRANS)) == 0) {
+ op += strlen(SMK_FSTRANS);
+- nsp = smk_import(op, 0);
+- if (nsp != NULL) {
+- sp->smk_root = nsp;
++ skp = smk_import_entry(op, 0);
++ if (skp != NULL) {
++ sp->smk_root = skp;
+ transmute = 1;
+ specified = 1;
+ }
+@@ -612,8 +614,8 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
+ * Unprivileged mounts get root and default from the caller.
+ */
+ skp = smk_of_current();
+- sp->smk_root = skp->smk_known;
+- sp->smk_default = skp->smk_known;
++ sp->smk_root = skp;
++ sp->smk_default = skp;
+ }
+ /*
+ * Initialize the root inode.
+@@ -690,7 +692,7 @@ static int smack_bprm_set_creds(struct linux_binprm *bprm)
+ tracer = ptrace_parent(current);
+ if (likely(tracer != NULL))
+ rc = smk_ptrace_rule_check(tracer,
+- isp->smk_task->smk_known,
++ isp->smk_task,
+ PTRACE_MODE_ATTACH,
+ __func__);
+ rcu_read_unlock();
+@@ -751,7 +753,7 @@ static int smack_inode_alloc_security(struct inode *inode)
+ {
+ struct smack_known *skp = smk_of_current();
+
+- inode->i_security = new_inode_smack(skp->smk_known);
++ inode->i_security = new_inode_smack(skp);
+ if (inode->i_security == NULL)
+ return -ENOMEM;
+ return 0;
+@@ -786,8 +788,8 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ {
+ struct inode_smack *issp = inode->i_security;
+ struct smack_known *skp = smk_of_current();
+- char *isp = smk_of_inode(inode);
+- char *dsp = smk_of_inode(dir);
++ struct smack_known *isp = smk_of_inode(inode);
++ struct smack_known *dsp = smk_of_inode(dir);
+ int may;
+
+ if (name)
+@@ -795,7 +797,8 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+
+ if (value) {
+ rcu_read_lock();
+- may = smk_access_entry(skp->smk_known, dsp, &skp->smk_rules);
++ may = smk_access_entry(skp->smk_known, dsp->smk_known,
++ &skp->smk_rules);
+ rcu_read_unlock();
+
+ /*
+@@ -810,13 +813,13 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ issp->smk_flags |= SMK_INODE_CHANGED;
+ }
+
+- *value = kstrdup(isp, GFP_NOFS);
++ *value = kstrdup(isp->smk_known, GFP_NOFS);
+ if (*value == NULL)
+ return -ENOMEM;
+ }
+
+ if (len)
+- *len = strlen(isp);
++ *len = strlen(isp->smk_known);
+
+ return 0;
+ }
+@@ -832,7 +835,7 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ static int smack_inode_link(struct dentry *old_dentry, struct inode *dir,
+ struct dentry *new_dentry)
+ {
+- char *isp;
++ struct smack_known *isp;
+ struct smk_audit_info ad;
+ int rc;
+
+@@ -939,7 +942,7 @@ static int smack_inode_rename(struct inode *old_inode,
+ struct dentry *new_dentry)
+ {
+ int rc;
+- char *isp;
++ struct smack_known *isp;
+ struct smk_audit_info ad;
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
+@@ -1127,9 +1130,9 @@ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name,
+ if (strcmp(name, XATTR_NAME_SMACK) == 0) {
+ skp = smk_import_entry(value, size);
+ if (skp != NULL)
+- isp->smk_inode = skp->smk_known;
++ isp->smk_inode = skp;
+ else
+- isp->smk_inode = smack_known_invalid.smk_known;
++ isp->smk_inode = &smack_known_invalid;
+ } else if (strcmp(name, XATTR_NAME_SMACKEXEC) == 0) {
+ skp = smk_import_entry(value, size);
+ if (skp != NULL)
+@@ -1238,14 +1241,14 @@ static int smack_inode_getsecurity(const struct inode *inode,
+ struct socket *sock;
+ struct super_block *sbp;
+ struct inode *ip = (struct inode *)inode;
+- char *isp;
++ struct smack_known *isp;
+ int ilen;
+ int rc = 0;
+
+ if (strcmp(name, XATTR_SMACK_SUFFIX) == 0) {
+ isp = smk_of_inode(inode);
+- ilen = strlen(isp);
+- *buffer = isp;
++ ilen = strlen(isp->smk_known);
++ *buffer = isp->smk_known;
+ return ilen;
+ }
+
+@@ -1263,15 +1266,15 @@ static int smack_inode_getsecurity(const struct inode *inode,
+ ssp = sock->sk->sk_security;
+
+ if (strcmp(name, XATTR_SMACK_IPIN) == 0)
+- isp = ssp->smk_in->smk_known;
++ isp = ssp->smk_in;
+ else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
+- isp = ssp->smk_out->smk_known;
++ isp = ssp->smk_out;
+ else
+ return -EOPNOTSUPP;
+
+- ilen = strlen(isp);
++ ilen = strlen(isp->smk_known);
+ if (rc == 0) {
+- *buffer = isp;
++ *buffer = isp->smk_known;
+ rc = ilen;
+ }
+
+@@ -1307,7 +1310,7 @@ static void smack_inode_getsecid(const struct inode *inode, u32 *secid)
+ {
+ struct inode_smack *isp = inode->i_security;
+
+- *secid = smack_to_secid(isp->smk_inode);
++ *secid = isp->smk_inode->smk_secid;
+ }
+
+ /*
+@@ -1346,7 +1349,7 @@ static int smack_file_alloc_security(struct file *file)
+ {
+ struct smack_known *skp = smk_of_current();
+
+- file->f_security = skp->smk_known;
++ file->f_security = skp;
+ return 0;
+ }
+
+@@ -1474,7 +1477,7 @@ static int smack_mmap_file(struct file *file,
+ struct smack_known *mkp;
+ struct smack_rule *srp;
+ struct task_smack *tsp;
+- char *osmack;
++ struct smack_known *okp;
+ struct inode_smack *isp;
+ int may;
+ int mmay;
+@@ -1500,18 +1503,19 @@ static int smack_mmap_file(struct file *file,
+ * to that rule's object label.
+ */
+ list_for_each_entry_rcu(srp, &skp->smk_rules, list) {
+- osmack = srp->smk_object;
++ okp = srp->smk_object;
+ /*
+ * Matching labels always allows access.
+ */
+- if (mkp->smk_known == osmack)
++ if (mkp->smk_known == okp->smk_known)
+ continue;
+ /*
+ * If there is a matching local rule take
+ * that into account as well.
+ */
+- may = smk_access_entry(srp->smk_subject->smk_known, osmack,
+- &tsp->smk_rules);
++ may = smk_access_entry(srp->smk_subject->smk_known,
++ okp->smk_known,
++ &tsp->smk_rules);
+ if (may == -ENOENT)
+ may = srp->smk_access;
+ else
+@@ -1528,8 +1532,8 @@ static int smack_mmap_file(struct file *file,
+ * If there isn't one a SMACK64MMAP subject
+ * can't have as much access as current.
+ */
+- mmay = smk_access_entry(mkp->smk_known, osmack,
+- &mkp->smk_rules);
++ mmay = smk_access_entry(mkp->smk_known, okp->smk_known,
++ &mkp->smk_rules);
+ if (mmay == -ENOENT) {
+ rc = -EACCES;
+ break;
+@@ -1538,8 +1542,8 @@ static int smack_mmap_file(struct file *file,
+ * If there is a local entry it modifies the
+ * potential access, too.
+ */
+- tmay = smk_access_entry(mkp->smk_known, osmack,
+- &tsp->smk_rules);
++ tmay = smk_access_entry(mkp->smk_known, okp->smk_known,
++ &tsp->smk_rules);
+ if (tmay != -ENOENT)
+ mmay &= tmay;
+
+@@ -1570,7 +1574,7 @@ static int smack_file_set_fowner(struct file *file)
+ {
+ struct smack_known *skp = smk_of_current();
+
+- file->f_security = skp->smk_known;
++ file->f_security = skp;
+ return 0;
+ }
+
+@@ -1600,15 +1604,15 @@ static int smack_file_send_sigiotask(struct task_struct *tsk,
+ file = container_of(fown, struct file, f_owner);
+
+ /* we don't log here as rc can be overriden */
+- skp = smk_find_entry(file->f_security);
+- rc = smk_access(skp, tkp->smk_known, MAY_WRITE, NULL);
+- rc = smk_bu_note("sigiotask", skp, tkp->smk_known, MAY_WRITE, rc);
++ skp = file->f_security;
++ rc = smk_access(skp, tkp, MAY_WRITE, NULL);
++ rc = smk_bu_note("sigiotask", skp, tkp, MAY_WRITE, rc);
+ if (rc != 0 && has_capability(tsk, CAP_MAC_OVERRIDE))
+ rc = 0;
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, tsk);
+- smack_log(file->f_security, tkp->smk_known, MAY_WRITE, rc, &ad);
++ smack_log(skp->smk_known, tkp->smk_known, MAY_WRITE, rc, &ad);
+ return rc;
+ }
+
+@@ -1805,7 +1809,7 @@ static int smack_kernel_create_files_as(struct cred *new,
+ struct inode_smack *isp = inode->i_security;
+ struct task_smack *tsp = new->security;
+
+- tsp->smk_forked = smk_find_entry(isp->smk_inode);
++ tsp->smk_forked = isp->smk_inode;
+ tsp->smk_task = tsp->smk_forked;
+ return 0;
+ }
+@@ -1827,7 +1831,7 @@ static int smk_curacc_on_task(struct task_struct *p, int access,
+
+ smk_ad_init(&ad, caller, LSM_AUDIT_DATA_TASK);
+ smk_ad_setfield_u_tsk(&ad, p);
+- rc = smk_curacc(skp->smk_known, access, &ad);
++ rc = smk_curacc(skp, access, &ad);
+ rc = smk_bu_task(p, access, rc);
+ return rc;
+ }
+@@ -1992,7 +1996,7 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
+ * can write the receiver.
+ */
+ if (secid == 0) {
+- rc = smk_curacc(tkp->smk_known, MAY_WRITE, &ad);
++ rc = smk_curacc(tkp, MAY_WRITE, &ad);
+ rc = smk_bu_task(p, MAY_WRITE, rc);
+ return rc;
+ }
+@@ -2002,8 +2006,8 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
+ * we can't take privilege into account.
+ */
+ skp = smack_from_secid(secid);
+- rc = smk_access(skp, tkp->smk_known, MAY_WRITE, &ad);
+- rc = smk_bu_note("USB signal", skp, tkp->smk_known, MAY_WRITE, rc);
++ rc = smk_access(skp, tkp, MAY_WRITE, &ad);
++ rc = smk_bu_note("USB signal", skp, tkp, MAY_WRITE, rc);
+ return rc;
+ }
+
+@@ -2038,7 +2042,7 @@ static void smack_task_to_inode(struct task_struct *p, struct inode *inode)
+ struct inode_smack *isp = inode->i_security;
+ struct smack_known *skp = smk_of_task(task_security(p));
+
+- isp->smk_inode = skp->smk_known;
++ isp->smk_inode = skp;
+ }
+
+ /*
+@@ -2096,7 +2100,7 @@ static void smack_sk_free_security(struct sock *sk)
+ *
+ * Returns the label of the far end or NULL if it's not special.
+ */
+-static char *smack_host_label(struct sockaddr_in *sip)
++static struct smack_known *smack_host_label(struct sockaddr_in *sip)
+ {
+ struct smk_netlbladdr *snp;
+ struct in_addr *siap = &sip->sin_addr;
+@@ -2113,7 +2117,7 @@ static char *smack_host_label(struct sockaddr_in *sip)
+ if ((&snp->smk_host.sin_addr)->s_addr ==
+ (siap->s_addr & (&snp->smk_mask)->s_addr)) {
+ /* we have found the special CIPSO option */
+- if (snp->smk_label == smack_cipso_option)
++ if (snp->smk_label == &smack_cipso_option)
+ return NULL;
+ return snp->smk_label;
+ }
+@@ -2178,13 +2182,13 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
+ struct smack_known *skp;
+ int rc;
+ int sk_lbl;
+- char *hostsp;
++ struct smack_known *hkp;
+ struct socket_smack *ssp = sk->sk_security;
+ struct smk_audit_info ad;
+
+ rcu_read_lock();
+- hostsp = smack_host_label(sap);
+- if (hostsp != NULL) {
++ hkp = smack_host_label(sap);
++ if (hkp != NULL) {
+ #ifdef CONFIG_AUDIT
+ struct lsm_network_audit net;
+
+@@ -2195,8 +2199,8 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
+ #endif
+ sk_lbl = SMACK_UNLABELED_SOCKET;
+ skp = ssp->smk_out;
+- rc = smk_access(skp, hostsp, MAY_WRITE, &ad);
+- rc = smk_bu_note("IPv4 host check", skp, hostsp, MAY_WRITE, rc);
++ rc = smk_access(skp, hkp, MAY_WRITE, &ad);
++ rc = smk_bu_note("IPv4 host check", skp, hkp, MAY_WRITE, rc);
+ } else {
+ sk_lbl = SMACK_CIPSO_SOCKET;
+ rc = 0;
+@@ -2297,7 +2301,7 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr_in6 *address,
+ struct socket_smack *ssp = sk->sk_security;
+ struct smack_known *skp;
+ unsigned short port = 0;
+- char *object;
++ struct smack_known *object;
+ struct smk_audit_info ad;
+ int rc;
+ #ifdef CONFIG_AUDIT
+@@ -2306,10 +2310,10 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr_in6 *address,
+
+ if (act == SMK_RECEIVING) {
+ skp = smack_net_ambient;
+- object = ssp->smk_in->smk_known;
++ object = ssp->smk_in;
+ } else {
+ skp = ssp->smk_out;
+- object = smack_net_ambient->smk_known;
++ object = smack_net_ambient;
+ }
+
+ /*
+@@ -2336,7 +2340,7 @@ static int smk_ipv6_port_check(struct sock *sk, struct sockaddr_in6 *address,
+ list_for_each_entry(spp, &smk_ipv6_port_list, list) {
+ if (spp->smk_port != port)
+ continue;
+- object = spp->smk_in->smk_known;
++ object = spp->smk_in;
+ if (act == SMK_CONNECTING)
+ ssp->smk_packet = spp->smk_out;
+ break;
+@@ -2387,7 +2391,7 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ return -EINVAL;
+
+ if (strcmp(name, XATTR_SMACK_SUFFIX) == 0) {
+- nsp->smk_inode = skp->smk_known;
++ nsp->smk_inode = skp;
+ nsp->smk_flags |= SMK_INODE_INSTANT;
+ return 0;
+ }
+@@ -2529,7 +2533,7 @@ static int smack_msg_msg_alloc_security(struct msg_msg *msg)
+ {
+ struct smack_known *skp = smk_of_current();
+
+- msg->security = skp->smk_known;
++ msg->security = skp;
+ return 0;
+ }
+
+@@ -2550,9 +2554,9 @@ static void smack_msg_msg_free_security(struct msg_msg *msg)
+ *
+ * Returns a pointer to the smack value
+ */
+-static char *smack_of_shm(struct shmid_kernel *shp)
++static struct smack_known *smack_of_shm(struct shmid_kernel *shp)
+ {
+- return (char *)shp->shm_perm.security;
++ return (struct smack_known *)shp->shm_perm.security;
+ }
+
+ /**
+@@ -2566,7 +2570,7 @@ static int smack_shm_alloc_security(struct shmid_kernel *shp)
+ struct kern_ipc_perm *isp = &shp->shm_perm;
+ struct smack_known *skp = smk_of_current();
+
+- isp->security = skp->smk_known;
++ isp->security = skp;
+ return 0;
+ }
+
+@@ -2592,7 +2596,7 @@ static void smack_shm_free_security(struct shmid_kernel *shp)
+ */
+ static int smk_curacc_shm(struct shmid_kernel *shp, int access)
+ {
+- char *ssp = smack_of_shm(shp);
++ struct smack_known *ssp = smack_of_shm(shp);
+ struct smk_audit_info ad;
+ int rc;
+
+@@ -2677,9 +2681,9 @@ static int smack_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
+ *
+ * Returns a pointer to the smack value
+ */
+-static char *smack_of_sem(struct sem_array *sma)
++static struct smack_known *smack_of_sem(struct sem_array *sma)
+ {
+- return (char *)sma->sem_perm.security;
++ return (struct smack_known *)sma->sem_perm.security;
+ }
+
+ /**
+@@ -2693,7 +2697,7 @@ static int smack_sem_alloc_security(struct sem_array *sma)
+ struct kern_ipc_perm *isp = &sma->sem_perm;
+ struct smack_known *skp = smk_of_current();
+
+- isp->security = skp->smk_known;
++ isp->security = skp;
+ return 0;
+ }
+
+@@ -2719,7 +2723,7 @@ static void smack_sem_free_security(struct sem_array *sma)
+ */
+ static int smk_curacc_sem(struct sem_array *sma, int access)
+ {
+- char *ssp = smack_of_sem(sma);
++ struct smack_known *ssp = smack_of_sem(sma);
+ struct smk_audit_info ad;
+ int rc;
+
+@@ -2815,7 +2819,7 @@ static int smack_msg_queue_alloc_security(struct msg_queue *msq)
+ struct kern_ipc_perm *kisp = &msq->q_perm;
+ struct smack_known *skp = smk_of_current();
+
+- kisp->security = skp->smk_known;
++ kisp->security = skp;
+ return 0;
+ }
+
+@@ -2836,11 +2840,11 @@ static void smack_msg_queue_free_security(struct msg_queue *msq)
+ * smack_of_msq - the smack pointer for the msq
+ * @msq: the object
+ *
+- * Returns a pointer to the smack value
++ * Returns a pointer to the smack label entry
+ */
+-static char *smack_of_msq(struct msg_queue *msq)
++static struct smack_known *smack_of_msq(struct msg_queue *msq)
+ {
+- return (char *)msq->q_perm.security;
++ return (struct smack_known *)msq->q_perm.security;
+ }
+
+ /**
+@@ -2852,7 +2856,7 @@ static char *smack_of_msq(struct msg_queue *msq)
+ */
+ static int smk_curacc_msq(struct msg_queue *msq, int access)
+ {
+- char *msp = smack_of_msq(msq);
++ struct smack_known *msp = smack_of_msq(msq);
+ struct smk_audit_info ad;
+ int rc;
+
+@@ -2955,7 +2959,7 @@ static int smack_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
+ */
+ static int smack_ipc_permission(struct kern_ipc_perm *ipp, short flag)
+ {
+- char *isp = ipp->security;
++ struct smack_known *iskp = ipp->security;
+ int may = smack_flags_to_may(flag);
+ struct smk_audit_info ad;
+ int rc;
+@@ -2964,8 +2968,8 @@ static int smack_ipc_permission(struct kern_ipc_perm *ipp, short flag)
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_IPC);
+ ad.a.u.ipc_id = ipp->id;
+ #endif
+- rc = smk_curacc(isp, may, &ad);
+- rc = smk_bu_current("svipc", isp, may, rc);
++ rc = smk_curacc(iskp, may, &ad);
++ rc = smk_bu_current("svipc", iskp, may, rc);
+ return rc;
+ }
+
+@@ -2976,9 +2980,9 @@ static int smack_ipc_permission(struct kern_ipc_perm *ipp, short flag)
+ */
+ static void smack_ipc_getsecid(struct kern_ipc_perm *ipp, u32 *secid)
+ {
+- char *smack = ipp->security;
++ struct smack_known *iskp = ipp->security;
+
+- *secid = smack_to_secid(smack);
++ *secid = iskp->smk_secid;
+ }
+
+ /**
+@@ -2995,7 +2999,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ struct inode_smack *isp;
+ struct smack_known *skp;
+ struct smack_known *ckp = smk_of_current();
+- char *final;
++ struct smack_known *final;
+ char trattr[TRANS_TRUE_SIZE];
+ int transflag = 0;
+ int rc;
+@@ -3035,8 +3039,8 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * so there's no opportunity to set the mount
+ * options.
+ */
+- sbsp->smk_root = smack_known_star.smk_known;
+- sbsp->smk_default = smack_known_star.smk_known;
++ sbsp->smk_root = &smack_known_star;
++ sbsp->smk_default = &smack_known_star;
+ }
+ isp->smk_inode = sbsp->smk_root;
+ isp->smk_flags |= SMK_INODE_INSTANT;
+@@ -3066,7 +3070,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ *
+ * Cgroupfs is special
+ */
+- final = smack_known_star.smk_known;
++ final = &smack_known_star;
+ break;
+ case DEVPTS_SUPER_MAGIC:
+ /*
+@@ -3074,7 +3078,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * Programs that change smack have to treat the
+ * pty with respect.
+ */
+- final = ckp->smk_known;
++ final = ckp;
+ break;
+ case PROC_SUPER_MAGIC:
+ /*
+@@ -3088,7 +3092,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * but watch out, because they're volitile,
+ * getting recreated on every reboot.
+ */
+- final = smack_known_star.smk_known;
++ final = &smack_known_star;
+ /*
+ * No break.
+ *
+@@ -3107,7 +3111,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * UNIX domain sockets use lower level socket data.
+ */
+ if (S_ISSOCK(inode->i_mode)) {
+- final = smack_known_star.smk_known;
++ final = &smack_known_star;
+ break;
+ }
+ /*
+@@ -3124,7 +3128,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ dp = dget(opt_dentry);
+ skp = smk_fetch(XATTR_NAME_SMACK, inode, dp);
+ if (skp != NULL)
+- final = skp->smk_known;
++ final = skp;
+
+ /*
+ * Transmuting directory
+@@ -3173,7 +3177,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ }
+
+ if (final == NULL)
+- isp->smk_inode = ckp->smk_known;
++ isp->smk_inode = ckp;
+ else
+ isp->smk_inode = final;
+
+@@ -3298,12 +3302,11 @@ static int smack_unix_stream_connect(struct sock *sock,
+ smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
+ smk_ad_setfield_u_net_sk(&ad, other);
+ #endif
+- rc = smk_access(skp, okp->smk_known, MAY_WRITE, &ad);
+- rc = smk_bu_note("UDS connect", skp, okp->smk_known,
+- MAY_WRITE, rc);
++ rc = smk_access(skp, okp, MAY_WRITE, &ad);
++ rc = smk_bu_note("UDS connect", skp, okp, MAY_WRITE, rc);
+ if (rc == 0) {
+- rc = smk_access(okp, skp->smk_known, MAY_WRITE, NULL);
+- rc = smk_bu_note("UDS connect", okp, skp->smk_known,
++ rc = smk_access(okp, skp, MAY_WRITE, NULL);
++ rc = smk_bu_note("UDS connect", okp, skp,
+ MAY_WRITE, rc);
+ }
+ }
+@@ -3331,7 +3334,6 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
+ {
+ struct socket_smack *ssp = sock->sk->sk_security;
+ struct socket_smack *osp = other->sk->sk_security;
+- struct smack_known *skp;
+ struct smk_audit_info ad;
+ int rc;
+
+@@ -3345,10 +3347,8 @@ static int smack_unix_may_send(struct socket *sock, struct socket *other)
+ if (smack_privileged(CAP_MAC_OVERRIDE))
+ return 0;
+
+- skp = ssp->smk_out;
+- rc = smk_access(skp, osp->smk_in->smk_known, MAY_WRITE, &ad);
+- rc = smk_bu_note("UDS send", skp, osp->smk_in->smk_known,
+- MAY_WRITE, rc);
++ rc = smk_access(ssp->smk_out, osp->smk_in, MAY_WRITE, &ad);
++ rc = smk_bu_note("UDS send", ssp->smk_out, osp->smk_in, MAY_WRITE, rc);
+ return rc;
+ }
+
+@@ -3563,8 +3563,8 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ * This is the simplist possible security model
+ * for networking.
+ */
+- rc = smk_access(skp, ssp->smk_in->smk_known, MAY_WRITE, &ad);
+- rc = smk_bu_note("IPv4 delivery", skp, ssp->smk_in->smk_known,
++ rc = smk_access(skp, ssp->smk_in, MAY_WRITE, &ad);
++ rc = smk_bu_note("IPv4 delivery", skp, ssp->smk_in,
+ MAY_WRITE, rc);
+ if (rc != 0)
+ netlbl_skbuff_err(skb, rc, 0);
+@@ -3708,7 +3708,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ struct netlbl_lsm_secattr secattr;
+ struct sockaddr_in addr;
+ struct iphdr *hdr;
+- char *hsp;
++ struct smack_known *hskp;
+ int rc;
+ struct smk_audit_info ad;
+ #ifdef CONFIG_AUDIT
+@@ -3745,9 +3745,8 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ * Receiving a packet requires that the other end be able to write
+ * here. Read access is not required.
+ */
+- rc = smk_access(skp, ssp->smk_in->smk_known, MAY_WRITE, &ad);
+- rc = smk_bu_note("IPv4 connect", skp, ssp->smk_in->smk_known,
+- MAY_WRITE, rc);
++ rc = smk_access(skp, ssp->smk_in, MAY_WRITE, &ad);
++ rc = smk_bu_note("IPv4 connect", skp, ssp->smk_in, MAY_WRITE, rc);
+ if (rc != 0)
+ return rc;
+
+@@ -3765,10 +3764,10 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ hdr = ip_hdr(skb);
+ addr.sin_addr.s_addr = hdr->saddr;
+ rcu_read_lock();
+- hsp = smack_host_label(&addr);
++ hskp = smack_host_label(&addr);
+ rcu_read_unlock();
+
+- if (hsp == NULL)
++ if (hskp == NULL)
+ rc = netlbl_req_setattr(req, &skp->smk_netlabel);
+ else
+ netlbl_req_delattr(req);
+@@ -3821,7 +3820,7 @@ static int smack_key_alloc(struct key *key, const struct cred *cred,
+ {
+ struct smack_known *skp = smk_of_task(cred->security);
+
+- key->security = skp->smk_known;
++ key->security = skp;
+ return 0;
+ }
+
+@@ -3910,6 +3909,7 @@ static int smack_key_permission(key_ref_t key_ref,
+ */
+ static int smack_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
+ {
++ struct smack_known *skp;
+ char **rule = (char **)vrule;
+ *rule = NULL;
+
+@@ -3919,7 +3919,9 @@ static int smack_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
+ if (op != Audit_equal && op != Audit_not_equal)
+ return -EINVAL;
+
+- *rule = smk_import(rulestr, 0);
++ skp = smk_import_entry(rulestr, 0);
++ if (skp)
++ *rule = skp->smk_known;
+
+ return 0;
+ }
+@@ -4038,7 +4040,12 @@ static int smack_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+ */
+ static int smack_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
+ {
+- *secid = smack_to_secid(secdata);
++ struct smack_known *skp = smk_find_entry(secdata);
++
++ if (skp)
++ *secid = skp->smk_secid;
++ else
++ *secid = 0;
+ return 0;
+ }
+
+diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
+index cf4e16b..c3f363a 100644
+--- a/security/smack/smackfs.c
++++ b/security/smack/smackfs.c
+@@ -131,14 +131,17 @@ LIST_HEAD(smack_rule_list);
+
+ struct smack_parsed_rule {
+ struct smack_known *smk_subject;
+- char *smk_object;
++ struct smack_known *smk_object;
+ int smk_access1;
+ int smk_access2;
+ };
+
+ static int smk_cipso_doi_value = SMACK_CIPSO_DOI_DEFAULT;
+
+-const char *smack_cipso_option = SMACK_CIPSO_OPTION;
++struct smack_known smack_cipso_option = {
++ .smk_known = SMACK_CIPSO_OPTION,
++ .smk_secid = 0,
++};
+
+ /*
+ * Values for parsing cipso rules
+@@ -339,7 +342,7 @@ static int smk_fill_rule(const char *subject, const char *object,
+ if (rule->smk_subject == NULL)
+ return -EINVAL;
+
+- rule->smk_object = smk_import(object, len);
++ rule->smk_object = smk_import_entry(object, len);
+ if (rule->smk_object == NULL)
+ return -EINVAL;
+ } else {
+@@ -359,7 +362,7 @@ static int smk_fill_rule(const char *subject, const char *object,
+ kfree(cp);
+ if (skp == NULL)
+ return -ENOENT;
+- rule->smk_object = skp->smk_known;
++ rule->smk_object = skp;
+ }
+
+ rule->smk_access1 = smk_perm_from_str(access1);
+@@ -598,13 +601,15 @@ static void smk_rule_show(struct seq_file *s, struct smack_rule *srp, int max)
+ * anything you read back.
+ */
+ if (strlen(srp->smk_subject->smk_known) >= max ||
+- strlen(srp->smk_object) >= max)
++ strlen(srp->smk_object->smk_known) >= max)
+ return;
+
+ if (srp->smk_access == 0)
+ return;
+
+- seq_printf(s, "%s %s", srp->smk_subject->smk_known, srp->smk_object);
++ seq_printf(s, "%s %s",
++ srp->smk_subject->smk_known,
++ srp->smk_object->smk_known);
+
+ seq_putc(s, ' ');
+
+@@ -1073,7 +1078,7 @@ static int netlbladdr_seq_show(struct seq_file *s, void *v)
+ for (maskn = 0; temp_mask; temp_mask <<= 1, maskn++);
+
+ seq_printf(s, "%u.%u.%u.%u/%d %s\n",
+- hp[0], hp[1], hp[2], hp[3], maskn, skp->smk_label);
++ hp[0], hp[1], hp[2], hp[3], maskn, skp->smk_label->smk_known);
+
+ return 0;
+ }
+@@ -1153,10 +1158,10 @@ static void smk_netlbladdr_insert(struct smk_netlbladdr *new)
+ static ssize_t smk_write_netlbladdr(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+ {
+- struct smk_netlbladdr *skp;
++ struct smk_netlbladdr *snp;
+ struct sockaddr_in newname;
+ char *smack;
+- char *sp;
++ struct smack_known *skp;
+ char *data;
+ char *host = (char *)&newname.sin_addr.s_addr;
+ int rc;
+@@ -1219,15 +1224,15 @@ static ssize_t smk_write_netlbladdr(struct file *file, const char __user *buf,
+ * If smack begins with '-', it is an option, don't import it
+ */
+ if (smack[0] != '-') {
+- sp = smk_import(smack, 0);
+- if (sp == NULL) {
++ skp = smk_import_entry(smack, 0);
++ if (skp == NULL) {
+ rc = -EINVAL;
+ goto free_out;
+ }
+ } else {
+ /* check known options */
+- if (strcmp(smack, smack_cipso_option) == 0)
+- sp = (char *)smack_cipso_option;
++ if (strcmp(smack, smack_cipso_option.smk_known) == 0)
++ skp = &smack_cipso_option;
+ else {
+ rc = -EINVAL;
+ goto free_out;
+@@ -1250,9 +1255,9 @@ static ssize_t smk_write_netlbladdr(struct file *file, const char __user *buf,
+ nsa = newname.sin_addr.s_addr;
+ /* try to find if the prefix is already in the list */
+ found = 0;
+- list_for_each_entry_rcu(skp, &smk_netlbladdr_list, list) {
+- if (skp->smk_host.sin_addr.s_addr == nsa &&
+- skp->smk_mask.s_addr == mask.s_addr) {
++ list_for_each_entry_rcu(snp, &smk_netlbladdr_list, list) {
++ if (snp->smk_host.sin_addr.s_addr == nsa &&
++ snp->smk_mask.s_addr == mask.s_addr) {
+ found = 1;
+ break;
+ }
+@@ -1260,26 +1265,26 @@ static ssize_t smk_write_netlbladdr(struct file *file, const char __user *buf,
+ smk_netlabel_audit_set(&audit_info);
+
+ if (found == 0) {
+- skp = kzalloc(sizeof(*skp), GFP_KERNEL);
+- if (skp == NULL)
++ snp = kzalloc(sizeof(*snp), GFP_KERNEL);
++ if (snp == NULL)
+ rc = -ENOMEM;
+ else {
+ rc = 0;
+- skp->smk_host.sin_addr.s_addr = newname.sin_addr.s_addr;
+- skp->smk_mask.s_addr = mask.s_addr;
+- skp->smk_label = sp;
+- smk_netlbladdr_insert(skp);
++ snp->smk_host.sin_addr.s_addr = newname.sin_addr.s_addr;
++ snp->smk_mask.s_addr = mask.s_addr;
++ snp->smk_label = skp;
++ smk_netlbladdr_insert(snp);
+ }
+ } else {
+ /* we delete the unlabeled entry, only if the previous label
+ * wasn't the special CIPSO option */
+- if (skp->smk_label != smack_cipso_option)
++ if (snp->smk_label != &smack_cipso_option)
+ rc = netlbl_cfg_unlbl_static_del(&init_net, NULL,
+- &skp->smk_host.sin_addr, &skp->smk_mask,
++ &snp->smk_host.sin_addr, &snp->smk_mask,
+ PF_INET, &audit_info);
+ else
+ rc = 0;
+- skp->smk_label = sp;
++ snp->smk_label = skp;
+ }
+
+ /*
+@@ -1287,10 +1292,10 @@ static ssize_t smk_write_netlbladdr(struct file *file, const char __user *buf,
+ * this host so that incoming packets get labeled.
+ * but only if we didn't get the special CIPSO option
+ */
+- if (rc == 0 && sp != smack_cipso_option)
++ if (rc == 0 && skp != &smack_cipso_option)
+ rc = netlbl_cfg_unlbl_static_add(&init_net, NULL,
+- &skp->smk_host.sin_addr, &skp->smk_mask, PF_INET,
+- smack_to_secid(skp->smk_label), &audit_info);
++ &snp->smk_host.sin_addr, &snp->smk_mask, PF_INET,
++ snp->smk_label->smk_secid, &audit_info);
+
+ if (rc == 0)
+ rc = count;
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0042-Smack-Lock-mode-for-the-floor-and-hat-labels.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0042-Smack-Lock-mode-for-the-floor-and-hat-labels.patch
new file mode 100644
index 0000000..274d3df
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0042-Smack-Lock-mode-for-the-floor-and-hat-labels.patch
@@ -0,0 +1,52 @@
+From 8515408b0cb0e819fdb197796a7509f4833fd8dd Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Thu, 9 Oct 2014 16:18:55 -0700
+Subject: [PATCH 42/54] Smack: Lock mode for the floor and hat labels
+
+The lock access mode allows setting a read lock on a file
+for with the process has only read access. The floor label is
+defined to make it easy to have the basic system installed such
+that everyone can read it. Once there's a desire to read lock
+(rationally or otherwise) a floor file a rule needs to get set.
+This happens all the time, so make the floor label a little bit
+more special and allow everyone lock access, too. By implication,
+give processes with the hat label (hat can read everything)
+lock access as well. This reduces clutter in the Smack rule set.
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_access.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index c6c9245..09077a5 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -142,8 +142,7 @@ int smk_access(struct smack_known *subject, struct smack_known *object,
+ * Tasks cannot be assigned the internet label.
+ * An internet subject can access any object.
+ */
+- if (object == &smack_known_web ||
+- subject == &smack_known_web)
++ if (object == &smack_known_web || subject == &smack_known_web)
+ goto out_audit;
+ /*
+ * A star object can be accessed by any subject.
+@@ -157,10 +156,11 @@ int smk_access(struct smack_known *subject, struct smack_known *object,
+ if (subject->smk_known == object->smk_known)
+ goto out_audit;
+ /*
+- * A hat subject can read any object.
+- * A floor object can be read by any subject.
++ * A hat subject can read or lock any object.
++ * A floor object can be read or locked by any subject.
+ */
+- if ((request & MAY_ANYREAD) == request) {
++ if ((request & MAY_ANYREAD) == request ||
++ (request & MAY_LOCK) == request) {
+ if (object == &smack_known_floor)
+ goto out_audit;
+ if (subject == &smack_known_hat)
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0043-Security-smack-replace-kzalloc-with-kmem_cache-for-i.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0043-Security-smack-replace-kzalloc-with-kmem_cache-for-i.patch
new file mode 100644
index 0000000..1a5b545
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0043-Security-smack-replace-kzalloc-with-kmem_cache-for-i.patch
@@ -0,0 +1,79 @@
+From f85163c82300f68eb73002d1b0e1a92288ff41fe Mon Sep 17 00:00:00 2001
+From: Rohit <rohit.kr@samsung.com>
+Date: Wed, 15 Oct 2014 17:40:41 +0530
+Subject: [PATCH 43/54] Security: smack: replace kzalloc with kmem_cache for
+ inode_smack
+
+The patch use kmem_cache to allocate/free inode_smack since they are
+alloced in high volumes making it a perfect case for kmem_cache.
+
+As per analysis, 24 bytes of memory is wasted per allocation due
+to internal fragmentation. With kmem_cache, this can be avoided.
+
+Accounting of memory allocation is below :
+ total slack net count-alloc/free caller
+Before (with kzalloc)
+1919872 719952 1919872 29998/0 new_inode_smack+0x14
+
+After (with kmem_cache)
+1201680 0 1201680 30042/0 new_inode_smack+0x18
+
+>From above data, we found that 719952 bytes(~700 KB) of memory is
+saved on allocation of 29998 smack inodes.
+
+Signed-off-by: Rohit <rohit.kr@samsung.com>
+---
+ security/smack/smack_lsm.c | 13 ++++++++++---
+ 1 file changed, 10 insertions(+), 3 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 2f62a68..b3978ea 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -53,6 +53,7 @@
+ #define SMK_SENDING 2
+
+ LIST_HEAD(smk_ipv6_port_list);
++static struct kmem_cache *smack_inode_cache;
+
+ #ifdef CONFIG_SECURITY_SMACK_BRINGUP
+ static void smk_bu_mode(int mode, char *s)
+@@ -240,7 +241,7 @@ struct inode_smack *new_inode_smack(struct smack_known *skp)
+ {
+ struct inode_smack *isp;
+
+- isp = kzalloc(sizeof(struct inode_smack), GFP_NOFS);
++ isp = kmem_cache_zalloc(smack_inode_cache, GFP_NOFS);
+ if (isp == NULL)
+ return NULL;
+
+@@ -767,7 +768,7 @@ static int smack_inode_alloc_security(struct inode *inode)
+ */
+ static void smack_inode_free_security(struct inode *inode)
+ {
+- kfree(inode->i_security);
++ kmem_cache_free(smack_inode_cache, inode->i_security);
+ inode->i_security = NULL;
+ }
+
+@@ -4266,10 +4267,16 @@ static __init int smack_init(void)
+ if (!security_module_enable(&smack_ops))
+ return 0;
+
++ smack_inode_cache = KMEM_CACHE(inode_smack, 0);
++ if (!smack_inode_cache)
++ return -ENOMEM;
++
+ tsp = new_task_smack(&smack_known_floor, &smack_known_floor,
+ GFP_KERNEL);
+- if (tsp == NULL)
++ if (tsp == NULL) {
++ kmem_cache_destroy(smack_inode_cache);
+ return -ENOMEM;
++ }
+
+ printk(KERN_INFO "Smack: Initializing.\n");
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0044-security-smack-fix-out-of-bounds-access-in-smk_parse.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0044-security-smack-fix-out-of-bounds-access-in-smk_parse.patch
new file mode 100644
index 0000000..25e04db
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0044-security-smack-fix-out-of-bounds-access-in-smk_parse.patch
@@ -0,0 +1,95 @@
+From dba5d8f4af7c92a247c4c0ab2688b9f01a4f34fc Mon Sep 17 00:00:00 2001
+From: Andrey Ryabinin <a.ryabinin@samsung.com>
+Date: Sat, 8 Nov 2014 17:48:05 +0300
+Subject: [PATCH 44/54] security: smack: fix out-of-bounds access in
+ smk_parse_smack()
+
+Setting smack label on file (e.g. 'attr -S -s SMACK64 -V "test" test')
+triggered following spew on the kernel with KASan applied:
+ ==================================================================
+ BUG: AddressSanitizer: out of bounds access in strncpy+0x28/0x60 at addr ffff8800059ad064
+ =============================================================================
+ BUG kmalloc-8 (Not tainted): kasan error
+ -----------------------------------------------------------------------------
+
+ Disabling lock debugging due to kernel taint
+ INFO: Slab 0xffffea0000166b40 objects=128 used=7 fp=0xffff8800059ad080 flags=0x4000000000000080
+ INFO: Object 0xffff8800059ad060 @offset=96 fp=0xffff8800059ad080
+
+ Bytes b4 ffff8800059ad050: a0 df 9a 05 00 88 ff ff 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ
+ Object ffff8800059ad060: 74 65 73 74 6b 6b 6b a5 testkkk.
+ Redzone ffff8800059ad068: cc cc cc cc cc cc cc cc ........
+ Padding ffff8800059ad078: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
+ CPU: 0 PID: 528 Comm: attr Tainted: G B 3.18.0-rc1-mm1+ #5
+ Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
+ 0000000000000000 ffff8800059ad064 ffffffff81534cf2 ffff880005a5bc40
+ ffffffff8112fe1a 0000000100800006 0000000f059ad060 ffff880006000f90
+ 0000000000000296 ffffea0000166b40 ffffffff8107ca97 ffff880005891060
+ Call Trace:
+ ? dump_stack (lib/dump_stack.c:52)
+ ? kasan_report_error (mm/kasan/report.c:102 mm/kasan/report.c:178)
+ ? preempt_count_sub (kernel/sched/core.c:2651)
+ ? __asan_load1 (mm/kasan/kasan.h:50 mm/kasan/kasan.c:248 mm/kasan/kasan.c:358)
+ ? strncpy (lib/string.c:121)
+ ? strncpy (lib/string.c:121)
+ ? smk_parse_smack (security/smack/smack_access.c:457)
+ ? setxattr (fs/xattr.c:343)
+ ? smk_import_entry (security/smack/smack_access.c:514)
+ ? smack_inode_setxattr (security/smack/smack_lsm.c:1093 (discriminator 1))
+ ? security_inode_setxattr (security/security.c:602)
+ ? vfs_setxattr (fs/xattr.c:134)
+ ? setxattr (fs/xattr.c:343)
+ ? setxattr (fs/xattr.c:360)
+ ? get_parent_ip (kernel/sched/core.c:2606)
+ ? preempt_count_sub (kernel/sched/core.c:2651)
+ ? __percpu_counter_add (arch/x86/include/asm/preempt.h:98 lib/percpu_counter.c:90)
+ ? get_parent_ip (kernel/sched/core.c:2606)
+ ? preempt_count_sub (kernel/sched/core.c:2651)
+ ? __mnt_want_write (arch/x86/include/asm/preempt.h:98 fs/namespace.c:359)
+ ? path_setxattr (fs/xattr.c:380)
+ ? SyS_lsetxattr (fs/xattr.c:397)
+ ? system_call_fastpath (arch/x86/kernel/entry_64.S:423)
+ Read of size 1 by task attr:
+ Memory state around the buggy address:
+ ffff8800059ace80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ ffff8800059acf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ ffff8800059acf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ >ffff8800059ad000: 00 fc fc fc 00 fc fc fc 05 fc fc fc 04 fc fc fc
+ ^
+ ffff8800059ad080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ ffff8800059ad100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ ffff8800059ad180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ ==================================================================
+
+strncpy() copies one byte more than the source string has.
+Fix this by passing the correct length to strncpy().
+
+Now we can remove initialization of the last byte in 'smack' string
+because kzalloc() already did this for us.
+
+Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
+---
+ security/smack/smack_access.c | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
+index 09077a5..8d0cd73 100644
+--- a/security/smack/smack_access.c
++++ b/security/smack/smack_access.c
+@@ -452,10 +452,9 @@ char *smk_parse_smack(const char *string, int len)
+ return NULL;
+
+ smack = kzalloc(i + 1, GFP_KERNEL);
+- if (smack != NULL) {
+- strncpy(smack, string, i + 1);
+- smack[i] = '\0';
+- }
++ if (smack != NULL)
++ strncpy(smack, string, i);
++
+ return smack;
+ }
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0045-smack-miscellaneous-small-fixes-in-function-comments.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0045-smack-miscellaneous-small-fixes-in-function-comments.patch
new file mode 100644
index 0000000..317707f
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0045-smack-miscellaneous-small-fixes-in-function-comments.patch
@@ -0,0 +1,62 @@
+From 72b47845b28439881d4db37b13eb97dccdc50e0f Mon Sep 17 00:00:00 2001
+From: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+Date: Wed, 26 Nov 2014 15:31:06 +0100
+Subject: [PATCH 45/54] smack: miscellaneous small fixes in function comments
+
+Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+---
+ security/smack/smack_lsm.c | 14 +++++++++-----
+ 1 file changed, 9 insertions(+), 5 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index b3978ea..eacd7fc 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -202,6 +202,7 @@ static int smk_bu_credfile(const struct cred *cred, struct file *file,
+
+ /**
+ * smk_fetch - Fetch the smack label from a file.
++ * @name: type of the label (attribute)
+ * @ip: a pointer to the inode
+ * @dp: a pointer to the dentry
+ *
+@@ -254,7 +255,9 @@ struct inode_smack *new_inode_smack(struct smack_known *skp)
+
+ /**
+ * new_task_smack - allocate a task security blob
+- * @smack: a pointer to the Smack label to use in the blob
++ * @task: a pointer to the Smack label for the running task
++ * @forked: a pointer to the Smack label for the forked task
++ * @gfp: type of the memory for the allocation
+ *
+ * Returns the new blob or NULL if there's no memory available
+ */
+@@ -277,8 +280,9 @@ static struct task_smack *new_task_smack(struct smack_known *task,
+
+ /**
+ * smk_copy_rules - copy a rule set
+- * @nhead - new rules header pointer
+- * @ohead - old rules header pointer
++ * @nhead: new rules header pointer
++ * @ohead: old rules header pointer
++ * @gfp: type of the memory for the allocation
+ *
+ * Returns 0 on success, -ENOMEM on error
+ */
+@@ -3836,11 +3840,11 @@ static void smack_key_free(struct key *key)
+ key->security = NULL;
+ }
+
+-/*
++/**
+ * smack_key_permission - Smack access on a key
+ * @key_ref: gets to the object
+ * @cred: the credentials to use
+- * @perm: unused
++ * @perm: requested key permissions
+ *
+ * Return 0 if the task has read and write to the object,
+ * an error code otherwise
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0046-smack-fix-logic-in-smack_inode_init_security-functio.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0046-smack-fix-logic-in-smack_inode_init_security-functio.patch
new file mode 100644
index 0000000..ec5221d
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0046-smack-fix-logic-in-smack_inode_init_security-functio.patch
@@ -0,0 +1,43 @@
+From b9fb9ef37ee4c2d9c30564afa8bfbb1bc3d58124 Mon Sep 17 00:00:00 2001
+From: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+Date: Wed, 26 Nov 2014 15:31:07 +0100
+Subject: [PATCH 46/54] smack: fix logic in smack_inode_init_security function
+
+In principle if this function was called with "value" == NULL and "len"
+not NULL it could return different results for the "len" compared to a
+case where "name" was not NULL. This is a hypothetical case that does
+not exist in the kernel, but it's a logic bug nonetheless.
+
+Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
+---
+ security/smack/smack_lsm.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index eacd7fc..2ec6cdb 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -800,7 +800,7 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ if (name)
+ *name = XATTR_SMACK_SUFFIX;
+
+- if (value) {
++ if (value && len) {
+ rcu_read_lock();
+ may = smk_access_entry(skp->smk_known, dsp->smk_known,
+ &skp->smk_rules);
+@@ -821,10 +821,9 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
+ *value = kstrdup(isp->smk_known, GFP_NOFS);
+ if (*value == NULL)
+ return -ENOMEM;
+- }
+
+- if (len)
+ *len = strlen(isp->smk_known);
++ }
+
+ return 0;
+ }
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0047-smack-introduce-a-special-case-for-tmpfs-in-smack_d_.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0047-smack-introduce-a-special-case-for-tmpfs-in-smack_d_.patch
new file mode 100644
index 0000000..255da99
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0047-smack-introduce-a-special-case-for-tmpfs-in-smack_d_.patch
@@ -0,0 +1,56 @@
+From 11d11ff47a952f09a85be5ed85c83ee19f8a74d2 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C5=81ukasz=20Stelmach?= <l.stelmach@samsung.com>
+Date: Tue, 16 Dec 2014 16:53:08 +0100
+Subject: [PATCH 47/54] smack: introduce a special case for tmpfs in
+ smack_d_instantiate()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Files created with __shmem_file_stup() appear to have somewhat fake
+dentries which make them look like root directories and not get
+the label the current process or ("*") star meant for tmpfs files.
+
+Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
+---
+ security/smack/smack_lsm.c | 16 ++++++++++++++--
+ 1 file changed, 14 insertions(+), 2 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 2ec6cdb..bc43227 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3037,7 +3037,8 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ * of the superblock.
+ */
+ if (opt_dentry->d_parent == opt_dentry) {
+- if (sbp->s_magic == CGROUP_SUPER_MAGIC) {
++ switch (sbp->s_magic) {
++ case CGROUP_SUPER_MAGIC:
+ /*
+ * The cgroup filesystem is never mounted,
+ * so there's no opportunity to set the mount
+@@ -3045,8 +3046,19 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
+ */
+ sbsp->smk_root = &smack_known_star;
+ sbsp->smk_default = &smack_known_star;
++ isp->smk_inode = sbsp->smk_root;
++ break;
++ case TMPFS_MAGIC:
++ /*
++ * What about shmem/tmpfs anonymous files with dentry
++ * obtained from d_alloc_pseudo()?
++ */
++ isp->smk_inode = smk_of_current();
++ break;
++ default:
++ isp->smk_inode = sbsp->smk_root;
++ break;
+ }
+- isp->smk_inode = sbsp->smk_root;
+ isp->smk_flags |= SMK_INODE_INSTANT;
+ goto unlockandout;
+ }
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch
new file mode 100644
index 0000000..6df1e69
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch
@@ -0,0 +1,40 @@
+From 8f134ed7adfba222fc1ea182accc95e7fb8e2be3 Mon Sep 17 00:00:00 2001
+From: Zbigniew Jasinski <z.jasinski@samsung.com>
+Date: Mon, 29 Dec 2014 15:34:58 +0100
+Subject: [PATCH 48/54] smack: Fix a bidirectional UDS connect check typo
+
+The 54e70ec5eb090193b03e69d551fa6771a5a217c4 commit introduced a
+bidirectional check that should have checked for mutual WRITE access
+between two labels. Due to a typo subject's OUT label is checked with
+object's OUT. Should be OUT to IN.
+
+Signed-off-by: Zbigniew Jasinski <z.jasinski@samsung.com>
+---
+ security/smack/smack_lsm.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index bc43227..c6f8664 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3313,7 +3313,7 @@ static int smack_unix_stream_connect(struct sock *sock,
+
+ if (!smack_privileged(CAP_MAC_OVERRIDE)) {
+ skp = ssp->smk_out;
+- okp = osp->smk_out;
++ okp = osp->smk_in;
+ #ifdef CONFIG_AUDIT
+ smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
+ smk_ad_setfield_u_net_sk(&ad, other);
+@@ -3321,6 +3321,8 @@ static int smack_unix_stream_connect(struct sock *sock,
+ rc = smk_access(skp, okp, MAY_WRITE, &ad);
+ rc = smk_bu_note("UDS connect", skp, okp, MAY_WRITE, rc);
+ if (rc == 0) {
++ okp = osp->smk_out;
++ skp = ssp->smk_in;
+ rc = smk_access(okp, skp, MAY_WRITE, NULL);
+ rc = smk_bu_note("UDS connect", okp, skp,
+ MAY_WRITE, rc);
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0049-Smack-Rework-file-hooks.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0049-Smack-Rework-file-hooks.patch
new file mode 100644
index 0000000..bceea97
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0049-Smack-Rework-file-hooks.patch
@@ -0,0 +1,172 @@
+From d27c9576dedafae4f315dc8a64501c1d4aef5cff Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Fri, 12 Dec 2014 17:19:19 -0800
+Subject: [PATCH 49/54] Smack: Rework file hooks
+
+This is one of those cases where you look at code you did
+years ago and wonder what you might have been thinking.
+There are a number of LSM hooks that work off of file pointers,
+and most of them really want the security data from the inode.
+Some, however, really want the security context that the process
+had when the file was opened. The difference went undetected in
+Smack until it started getting used in a real system with real
+testing. At that point it was clear that something was amiss.
+
+This patch corrects the misuse of the f_security value in several
+of the hooks. The behavior will not usually be any different, as
+the process had to be able to open the file in the first place, and
+the old check almost always succeeded, as will the new, but for
+different reasons.
+
+Thanks to the Samsung Tizen development team that identified this.
+
+Change-Id: If23494f46eaf27e0247a5f0daf31a4415ae936c8
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 38 ++++++++++++++++++--------------------
+ 1 file changed, 18 insertions(+), 20 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index c6f8664..9aa34d3 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -160,7 +160,7 @@ static int smk_bu_file(struct file *file, int mode, int rc)
+ {
+ struct task_smack *tsp = current_security();
+ struct smack_known *sskp = tsp->smk_task;
+- struct inode *inode = file->f_inode;
++ struct inode *inode = file_inode(file);
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+ if (rc <= 0)
+@@ -1347,6 +1347,9 @@ static int smack_file_permission(struct file *file, int mask)
+ * The security blob for a file is a pointer to the master
+ * label list, so no allocation is done.
+ *
++ * f_security is the owner security information. It
++ * isn't used on file access checks, it's for send_sigio.
++ *
+ * Returns 0
+ */
+ static int smack_file_alloc_security(struct file *file)
+@@ -1384,17 +1387,18 @@ static int smack_file_ioctl(struct file *file, unsigned int cmd,
+ {
+ int rc = 0;
+ struct smk_audit_info ad;
++ struct inode *inode = file_inode(file);
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+
+ if (_IOC_DIR(cmd) & _IOC_WRITE) {
+- rc = smk_curacc(file->f_security, MAY_WRITE, &ad);
++ rc = smk_curacc(smk_of_inode(inode), MAY_WRITE, &ad);
+ rc = smk_bu_file(file, MAY_WRITE, rc);
+ }
+
+ if (rc == 0 && (_IOC_DIR(cmd) & _IOC_READ)) {
+- rc = smk_curacc(file->f_security, MAY_READ, &ad);
++ rc = smk_curacc(smk_of_inode(inode), MAY_READ, &ad);
+ rc = smk_bu_file(file, MAY_READ, rc);
+ }
+
+@@ -1412,10 +1416,11 @@ static int smack_file_lock(struct file *file, unsigned int cmd)
+ {
+ struct smk_audit_info ad;
+ int rc;
++ struct inode *inode = file_inode(file);
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+- rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
++ rc = smk_curacc(smk_of_inode(inode), MAY_LOCK, &ad);
+ rc = smk_bu_file(file, MAY_LOCK, rc);
+ return rc;
+ }
+@@ -1437,7 +1442,7 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd,
+ {
+ struct smk_audit_info ad;
+ int rc = 0;
+-
++ struct inode *inode = file_inode(file);
+
+ switch (cmd) {
+ case F_GETLK:
+@@ -1446,14 +1451,14 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd,
+ case F_SETLKW:
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+- rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
++ rc = smk_curacc(smk_of_inode(inode), MAY_LOCK, &ad);
+ rc = smk_bu_file(file, MAY_LOCK, rc);
+ break;
+ case F_SETOWN:
+ case F_SETSIG:
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+- rc = smk_curacc(file->f_security, MAY_WRITE, &ad);
++ rc = smk_curacc(smk_of_inode(inode), MAY_WRITE, &ad);
+ rc = smk_bu_file(file, MAY_WRITE, rc);
+ break;
+ default:
+@@ -1571,14 +1576,10 @@ static int smack_mmap_file(struct file *file,
+ * smack_file_set_fowner - set the file security blob value
+ * @file: object in question
+ *
+- * Returns 0
+- * Further research may be required on this one.
+ */
+ static int smack_file_set_fowner(struct file *file)
+ {
+- struct smack_known *skp = smk_of_current();
+-
+- file->f_security = skp;
++ file->f_security = smk_of_current();
+ return 0;
+ }
+
+@@ -1631,6 +1632,7 @@ static int smack_file_receive(struct file *file)
+ int rc;
+ int may = 0;
+ struct smk_audit_info ad;
++ struct inode *inode = file_inode(file);
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+@@ -1642,7 +1644,7 @@ static int smack_file_receive(struct file *file)
+ if (file->f_mode & FMODE_WRITE)
+ may |= MAY_WRITE;
+
+- rc = smk_curacc(file->f_security, may, &ad);
++ rc = smk_curacc(smk_of_inode(inode), may, &ad);
+ rc = smk_bu_file(file, may, rc);
+ return rc;
+ }
+@@ -1662,21 +1664,17 @@ static int smack_file_receive(struct file *file)
+ static int smack_file_open(struct file *file, const struct cred *cred)
+ {
+ struct task_smack *tsp = cred->security;
+- struct inode_smack *isp = file_inode(file)->i_security;
++ struct inode *inode = file_inode(file);
+ struct smk_audit_info ad;
+ int rc;
+
+- if (smack_privileged(CAP_MAC_OVERRIDE)) {
+- file->f_security = isp->smk_inode;
++ if (smack_privileged(CAP_MAC_OVERRIDE))
+ return 0;
+- }
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+ smk_ad_setfield_u_fs_path(&ad, file->f_path);
+- rc = smk_access(tsp->smk_task, isp->smk_inode, MAY_READ, &ad);
++ rc = smk_access(tsp->smk_task, smk_of_inode(inode), MAY_READ, &ad);
+ rc = smk_bu_credfile(cred, file, MAY_READ, rc);
+- if (rc == 0)
+- file->f_security = isp->smk_inode;
+
+ return rc;
+ }
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0050-Smack-secmark-support-for-netfilter.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0050-Smack-secmark-support-for-netfilter.patch
new file mode 100644
index 0000000..bbaf99f
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0050-Smack-secmark-support-for-netfilter.patch
@@ -0,0 +1,448 @@
+From ca4b65446c72278483c473c189191f50f2b2466e Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Fri, 12 Dec 2014 17:08:40 -0800
+Subject: [PATCH 50/54] Smack: secmark support for netfilter
+
+Smack uses CIPSO to label internet packets and thus provide
+for access control on delivery of packets. The netfilter facility
+was not used to allow for Smack to work properly without netfilter
+configuration. Smack does not need netfilter, however there are
+cases where it would be handy.
+
+As a side effect, the labeling of local IPv4 packets can be optimized
+and the handling of local IPv6 packets is just all out better.
+
+The best part is that the netfilter tools use "contexts" that
+are just strings, and they work just as well for Smack as they
+do for SELinux.
+
+All of the conditional compilation for IPv6 was implemented
+by Rafal Krypa <r.krypa@samsung.com>
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/Kconfig | 12 +++++
+ security/smack/Makefile | 1 +
+ security/smack/smack.h | 1 +
+ security/smack/smack_lsm.c | 94 +++++++++++++++++++++++++++++++++++----
+ security/smack/smack_netfilter.c | 96 ++++++++++++++++++++++++++++++++++++++++
+ 5 files changed, 196 insertions(+), 8 deletions(-)
+ create mode 100644 security/smack/smack_netfilter.c
+
+diff --git a/security/smack/Kconfig b/security/smack/Kconfig
+index b065f97..271adae 100644
+--- a/security/smack/Kconfig
++++ b/security/smack/Kconfig
+@@ -28,3 +28,15 @@ config SECURITY_SMACK_BRINGUP
+ access rule set once the behavior is well understood.
+ This is a superior mechanism to the oft abused
+ "permissive" mode of other systems.
++ If you are unsure how to answer this question, answer N.
++
++config SECURITY_SMACK_NETFILTER
++ bool "Packet marking using secmarks for netfilter"
++ depends on SECURITY_SMACK
++ depends on NETWORK_SECMARK
++ depends on NETFILTER
++ default n
++ help
++ This enables security marking of network packets using
++ Smack labels.
++ If you are unsure how to answer this question, answer N.
+diff --git a/security/smack/Makefile b/security/smack/Makefile
+index 67a63aa..616cf93 100644
+--- a/security/smack/Makefile
++++ b/security/smack/Makefile
+@@ -5,3 +5,4 @@
+ obj-$(CONFIG_SECURITY_SMACK) := smack.o
+
+ smack-y := smack_lsm.o smack_access.o smackfs.o
++smack-$(CONFIG_NETFILTER) += smack_netfilter.o
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index b828a37..7629eae 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -248,6 +248,7 @@ struct smack_known *smk_find_entry(const char *);
+ /*
+ * Shared data.
+ */
++extern int smack_enabled;
+ extern int smack_cipso_direct;
+ extern int smack_cipso_mapped;
+ extern struct smack_known *smack_net_ambient;
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 9aa34d3..ae3e1b6 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -52,8 +52,11 @@
+ #define SMK_RECEIVING 1
+ #define SMK_SENDING 2
+
++#if IS_ENABLED(CONFIG_IPV6) && !defined(CONFIG_SECURITY_SMACK_NETFILTER)
+ LIST_HEAD(smk_ipv6_port_list);
++#endif /* CONFIG_IPV6 && !CONFIG_SECURITY_SMACK_NETFILTER */
+ static struct kmem_cache *smack_inode_cache;
++int smack_enabled;
+
+ #ifdef CONFIG_SECURITY_SMACK_BRINGUP
+ static void smk_bu_mode(int mode, char *s)
+@@ -2214,6 +2217,7 @@ static int smack_netlabel_send(struct sock *sk, struct sockaddr_in *sap)
+ return smack_netlabel(sk, sk_lbl);
+ }
+
++#if IS_ENABLED(CONFIG_IPV6) && !defined(CONFIG_SECURITY_SMACK_NETFILTER)
+ /**
+ * smk_ipv6_port_label - Smack port access table management
+ * @sock: socket
+@@ -2363,6 +2367,7 @@ auditout:
+ rc = smk_bu_note("IPv6 port check", skp, object, MAY_WRITE, rc);
+ return rc;
+ }
++#endif /* CONFIG_IPV6 && !CONFIG_SECURITY_SMACK_NETFILTER */
+
+ /**
+ * smack_inode_setsecurity - set smack xattrs
+@@ -2423,8 +2428,10 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
+ } else
+ return -EOPNOTSUPP;
+
++#if IS_ENABLED(CONFIG_IPV6) && !defined(CONFIG_SECURITY_SMACK_NETFILTER)
+ if (sock->sk->sk_family == PF_INET6)
+ smk_ipv6_port_label(sock, NULL);
++#endif /* CONFIG_IPV6 && !CONFIG_SECURITY_SMACK_NETFILTER */
+
+ return 0;
+ }
+@@ -2452,6 +2459,7 @@ static int smack_socket_post_create(struct socket *sock, int family,
+ return smack_netlabel(sock->sk, SMACK_CIPSO_SOCKET);
+ }
+
++#ifndef CONFIG_SECURITY_SMACK_NETFILTER
+ /**
+ * smack_socket_bind - record port binding information.
+ * @sock: the socket
+@@ -2465,11 +2473,14 @@ static int smack_socket_post_create(struct socket *sock, int family,
+ static int smack_socket_bind(struct socket *sock, struct sockaddr *address,
+ int addrlen)
+ {
++#if IS_ENABLED(CONFIG_IPV6)
+ if (sock->sk != NULL && sock->sk->sk_family == PF_INET6)
+ smk_ipv6_port_label(sock, address);
++#endif
+
+ return 0;
+ }
++#endif /* !CONFIG_SECURITY_SMACK_NETFILTER */
+
+ /**
+ * smack_socket_connect - connect access check
+@@ -2498,8 +2509,10 @@ static int smack_socket_connect(struct socket *sock, struct sockaddr *sap,
+ case PF_INET6:
+ if (addrlen < sizeof(struct sockaddr_in6))
+ return -EINVAL;
++#if IS_ENABLED(CONFIG_IPV6) && !defined(CONFIG_SECURITY_SMACK_NETFILTER)
+ rc = smk_ipv6_port_check(sock->sk, (struct sockaddr_in6 *)sap,
+ SMK_CONNECTING);
++#endif /* CONFIG_IPV6 && !CONFIG_SECURITY_SMACK_NETFILTER */
+ break;
+ }
+ return rc;
+@@ -3382,7 +3395,9 @@ static int smack_socket_sendmsg(struct socket *sock, struct msghdr *msg,
+ int size)
+ {
+ struct sockaddr_in *sip = (struct sockaddr_in *) msg->msg_name;
++#if IS_ENABLED(CONFIG_IPV6) && !defined(CONFIG_SECURITY_SMACK_NETFILTER)
+ struct sockaddr_in6 *sap = (struct sockaddr_in6 *) msg->msg_name;
++#endif /* CONFIG_IPV6 && !CONFIG_SECURITY_SMACK_NETFILTER */
+ int rc = 0;
+
+ /*
+@@ -3396,7 +3411,9 @@ static int smack_socket_sendmsg(struct socket *sock, struct msghdr *msg,
+ rc = smack_netlabel_send(sock->sk, sip);
+ break;
+ case AF_INET6:
++#if IS_ENABLED(CONFIG_IPV6) && !defined(CONFIG_SECURITY_SMACK_NETFILTER)
+ rc = smk_ipv6_port_check(sock->sk, sap, SMK_SENDING);
++#endif /* CONFIG_IPV6 && !CONFIG_SECURITY_SMACK_NETFILTER */
+ break;
+ }
+ return rc;
+@@ -3487,6 +3504,7 @@ static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
+ return smack_net_ambient;
+ }
+
++#if IS_ENABLED(CONFIG_IPV6)
+ static int smk_skb_to_addr_ipv6(struct sk_buff *skb, struct sockaddr_in6 *sip)
+ {
+ u8 nexthdr;
+@@ -3533,6 +3551,7 @@ static int smk_skb_to_addr_ipv6(struct sk_buff *skb, struct sockaddr_in6 *sip)
+ }
+ return proto;
+ }
++#endif /* CONFIG_IPV6 */
+
+ /**
+ * smack_socket_sock_rcv_skb - Smack packet delivery access check
+@@ -3545,15 +3564,30 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ {
+ struct netlbl_lsm_secattr secattr;
+ struct socket_smack *ssp = sk->sk_security;
+- struct smack_known *skp;
+- struct sockaddr_in6 sadd;
++ struct smack_known *skp = NULL;
+ int rc = 0;
+ struct smk_audit_info ad;
+ #ifdef CONFIG_AUDIT
+ struct lsm_network_audit net;
+ #endif
++#if IS_ENABLED(CONFIG_IPV6)
++ struct sockaddr_in6 sadd;
++ int proto;
++#endif /* CONFIG_IPV6 */
++
+ switch (sk->sk_family) {
+ case PF_INET:
++#ifdef CONFIG_SECURITY_SMACK_NETFILTER
++ /*
++ * If there is a secmark use it rather than the CIPSO label.
++ * If there is no secmark fall back to CIPSO.
++ * The secmark is assumed to reflect policy better.
++ */
++ if (skb && skb->secmark != 0) {
++ skp = smack_from_secid(skb->secmark);
++ goto access_check;
++ }
++#endif /* CONFIG_SECURITY_SMACK_NETFILTER */
+ /*
+ * Translate what netlabel gave us.
+ */
+@@ -3567,6 +3601,9 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+
+ netlbl_secattr_destroy(&secattr);
+
++#ifdef CONFIG_SECURITY_SMACK_NETFILTER
++access_check:
++#endif
+ #ifdef CONFIG_AUDIT
+ smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
+ ad.a.u.net->family = sk->sk_family;
+@@ -3585,14 +3622,32 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ if (rc != 0)
+ netlbl_skbuff_err(skb, rc, 0);
+ break;
++#if IS_ENABLED(CONFIG_IPV6)
+ case PF_INET6:
+- rc = smk_skb_to_addr_ipv6(skb, &sadd);
+- if (rc == IPPROTO_UDP || rc == IPPROTO_TCP)
+- rc = smk_ipv6_port_check(sk, &sadd, SMK_RECEIVING);
++ proto = smk_skb_to_addr_ipv6(skb, &sadd);
++ if (proto != IPPROTO_UDP && proto != IPPROTO_TCP)
++ break;
++#ifdef CONFIG_SECURITY_SMACK_NETFILTER
++ if (skb && skb->secmark != 0)
++ skp = smack_from_secid(skb->secmark);
+ else
+- rc = 0;
++ skp = smack_net_ambient;
++#ifdef CONFIG_AUDIT
++ smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
++ ad.a.u.net->family = sk->sk_family;
++ ad.a.u.net->netif = skb->skb_iif;
++ ipv6_skb_to_auditdata(skb, &ad.a, NULL);
++#endif /* CONFIG_AUDIT */
++ rc = smk_access(skp, ssp->smk_in, MAY_WRITE, &ad);
++ rc = smk_bu_note("IPv6 delivery", skp, ssp->smk_in,
++ MAY_WRITE, rc);
++#else /* CONFIG_SECURITY_SMACK_NETFILTER */
++ rc = smk_ipv6_port_check(sk, &sadd, SMK_RECEIVING);
++#endif /* CONFIG_SECURITY_SMACK_NETFILTER */
+ break;
++#endif /* CONFIG_IPV6 */
+ }
++
+ return rc;
+ }
+
+@@ -3654,16 +3709,25 @@ static int smack_socket_getpeersec_dgram(struct socket *sock,
+ if (skb != NULL) {
+ if (skb->protocol == htons(ETH_P_IP))
+ family = PF_INET;
++#if IS_ENABLED(CONFIG_IPV6)
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ family = PF_INET6;
++#endif /* CONFIG_IPV6 */
+ }
+ if (family == PF_UNSPEC && sock != NULL)
+ family = sock->sk->sk_family;
+
+- if (family == PF_UNIX) {
++ switch (family) {
++ case PF_UNIX:
+ ssp = sock->sk->sk_security;
+ s = ssp->smk_out->smk_secid;
+- } else if (family == PF_INET || family == PF_INET6) {
++ break;
++ case PF_INET:
++#ifdef CONFIG_SECURITY_SMACK_NETFILTER
++ s = skb->secmark;
++ if (s != 0)
++ break;
++#endif
+ /*
+ * Translate what netlabel gave us.
+ */
+@@ -3676,6 +3740,14 @@ static int smack_socket_getpeersec_dgram(struct socket *sock,
+ s = skp->smk_secid;
+ }
+ netlbl_secattr_destroy(&secattr);
++ break;
++#if IS_ENABLED(CONFIG_IPV6)
++ case PF_INET6:
++#ifdef CONFIG_SECURITY_SMACK_NETFILTER
++ s = skb->secmark;
++#endif /* CONFIG_SECURITY_SMACK_NETFILTER */
++ break;
++#endif /* CONFIG_IPV6 */
+ }
+ *secid = s;
+ if (s == 0)
+@@ -3731,6 +3803,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ struct lsm_network_audit net;
+ #endif
+
++#if IS_ENABLED(CONFIG_IPV6)
+ if (family == PF_INET6) {
+ /*
+ * Handle mapped IPv4 packets arriving
+@@ -3742,6 +3815,7 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ else
+ return 0;
+ }
++#endif /* CONFIG_IPV6 */
+
+ netlbl_secattr_init(&secattr);
+ rc = netlbl_skbuff_getattr(skb, family, &secattr);
+@@ -4201,7 +4275,9 @@ struct security_operations smack_ops = {
+ .unix_may_send = smack_unix_may_send,
+
+ .socket_post_create = smack_socket_post_create,
++#ifndef CONFIG_SECURITY_SMACK_NETFILTER
+ .socket_bind = smack_socket_bind,
++#endif /* CONFIG_SECURITY_SMACK_NETFILTER */
+ .socket_connect = smack_socket_connect,
+ .socket_sendmsg = smack_socket_sendmsg,
+ .socket_sock_rcv_skb = smack_socket_sock_rcv_skb,
+@@ -4282,6 +4358,8 @@ static __init int smack_init(void)
+ if (!security_module_enable(&smack_ops))
+ return 0;
+
++ smack_enabled = 1;
++
+ smack_inode_cache = KMEM_CACHE(inode_smack, 0);
+ if (!smack_inode_cache)
+ return -ENOMEM;
+diff --git a/security/smack/smack_netfilter.c b/security/smack/smack_netfilter.c
+new file mode 100644
+index 0000000..c952632
+--- /dev/null
++++ b/security/smack/smack_netfilter.c
+@@ -0,0 +1,96 @@
++/*
++ * Simplified MAC Kernel (smack) security module
++ *
++ * This file contains the Smack netfilter implementation
++ *
++ * Author:
++ * Casey Schaufler <casey@schaufler-ca.com>
++ *
++ * Copyright (C) 2014 Casey Schaufler <casey@schaufler-ca.com>
++ * Copyright (C) 2014 Intel Corporation.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2,
++ * as published by the Free Software Foundation.
++ */
++
++#include <linux/netfilter_ipv4.h>
++#include <linux/netfilter_ipv6.h>
++#include <linux/netdevice.h>
++#include "smack.h"
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++
++static unsigned int smack_ipv6_output(const struct nf_hook_ops *ops,
++ struct sk_buff *skb,
++ const struct net_device *in,
++ const struct net_device *out,
++ int (*okfn)(struct sk_buff *))
++{
++ struct socket_smack *ssp;
++ struct smack_known *skp;
++
++ if (skb && skb->sk && skb->sk->sk_security) {
++ ssp = skb->sk->sk_security;
++ skp = ssp->smk_out;
++ skb->secmark = skp->smk_secid;
++ }
++
++ return NF_ACCEPT;
++}
++#endif /* IPV6 */
++
++static unsigned int smack_ipv4_output(const struct nf_hook_ops *ops,
++ struct sk_buff *skb,
++ const struct net_device *in,
++ const struct net_device *out,
++ int (*okfn)(struct sk_buff *))
++{
++ struct socket_smack *ssp;
++ struct smack_known *skp;
++
++ if (skb && skb->sk && skb->sk->sk_security) {
++ ssp = skb->sk->sk_security;
++ skp = ssp->smk_out;
++ skb->secmark = skp->smk_secid;
++ }
++
++ return NF_ACCEPT;
++}
++
++static struct nf_hook_ops smack_nf_ops[] = {
++ {
++ .hook = smack_ipv4_output,
++ .owner = THIS_MODULE,
++ .pf = NFPROTO_IPV4,
++ .hooknum = NF_INET_LOCAL_OUT,
++ .priority = NF_IP_PRI_SELINUX_FIRST,
++ },
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++ {
++ .hook = smack_ipv6_output,
++ .owner = THIS_MODULE,
++ .pf = NFPROTO_IPV6,
++ .hooknum = NF_INET_LOCAL_OUT,
++ .priority = NF_IP6_PRI_SELINUX_FIRST,
++ },
++#endif /* IPV6 */
++};
++
++static int __init smack_nf_ip_init(void)
++{
++ int err;
++
++ if (smack_enabled == 0)
++ return 0;
++
++ printk(KERN_DEBUG "Smack: Registering netfilter hooks\n");
++
++ err = nf_register_hooks(smack_nf_ops, ARRAY_SIZE(smack_nf_ops));
++ if (err)
++ pr_info("Smack: nf_register_hooks: error %d\n", err);
++
++ return 0;
++}
++
++__initcall(smack_nf_ip_init);
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0051-smack-Add-missing-logging-in-bidirectional-UDS-conne.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0051-smack-Add-missing-logging-in-bidirectional-UDS-conne.patch
new file mode 100644
index 0000000..9bb0fc6
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0051-smack-Add-missing-logging-in-bidirectional-UDS-conne.patch
@@ -0,0 +1,31 @@
+From 7c99b043770ddb2c258531163b631ff3256757e4 Mon Sep 17 00:00:00 2001
+From: Rafal Krypa <r.krypa@samsung.com>
+Date: Thu, 8 Jan 2015 18:52:45 +0100
+Subject: [PATCH 51/54] smack: Add missing logging in bidirectional UDS connect
+ check
+
+During UDS connection check, both sides are checked for write access to
+the other side. But only the first check is performed with audit support.
+The second one didn't produce any audit logs. This simple patch fixes that.
+
+Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
+---
+ security/smack/smack_lsm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index ae3e1b6..12eb355 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3334,7 +3334,7 @@ static int smack_unix_stream_connect(struct sock *sock,
+ if (rc == 0) {
+ okp = osp->smk_out;
+ skp = ssp->smk_in;
+- rc = smk_access(okp, skp, MAY_WRITE, NULL);
++ rc = smk_access(okp, skp, MAY_WRITE, &ad);
+ rc = smk_bu_note("UDS connect", okp, skp,
+ MAY_WRITE, rc);
+ }
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0052-smack-fix-possible-use-after-frees-in-task_security-.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0052-smack-fix-possible-use-after-frees-in-task_security-.patch
new file mode 100644
index 0000000..7486945
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0052-smack-fix-possible-use-after-frees-in-task_security-.patch
@@ -0,0 +1,253 @@
+From 7089ef9dcab89e60396bafb8c6cc0398f09da902 Mon Sep 17 00:00:00 2001
+From: Andrey Ryabinin <a.ryabinin@samsung.com>
+Date: Tue, 13 Jan 2015 18:52:40 +0300
+Subject: [PATCH 52/54] smack: fix possible use after frees in task_security()
+ callers
+
+We hit use after free on dereferncing pointer to task_smack struct in
+smk_of_task() called from smack_task_to_inode().
+
+task_security() macro uses task_cred_xxx() to get pointer to the task_smack.
+task_cred_xxx() could be used only for non-pointer members of task's
+credentials. It cannot be used for pointer members since what they point
+to may disapper after dropping RCU read lock.
+
+Mainly task_security() used this way:
+ smk_of_task(task_security(p))
+
+Intead of this introduce function smk_of_task_struct() which
+takes task_struct as argument and returns pointer to smk_known struct
+and do this under RCU read lock.
+Bogus task_security() macro is not used anymore, so remove it.
+
+KASan's report for this:
+
+ AddressSanitizer: use after free in smack_task_to_inode+0x50/0x70 at addr c4635600
+ =============================================================================
+ BUG kmalloc-64 (Tainted: PO): kasan error
+ -----------------------------------------------------------------------------
+
+ Disabling lock debugging due to kernel taint
+ INFO: Allocated in new_task_smack+0x44/0xd8 age=39 cpu=0 pid=1866
+ kmem_cache_alloc_trace+0x88/0x1bc
+ new_task_smack+0x44/0xd8
+ smack_cred_prepare+0x48/0x21c
+ security_prepare_creds+0x44/0x4c
+ prepare_creds+0xdc/0x110
+ smack_setprocattr+0x104/0x150
+ security_setprocattr+0x4c/0x54
+ proc_pid_attr_write+0x12c/0x194
+ vfs_write+0x1b0/0x370
+ SyS_write+0x5c/0x94
+ ret_fast_syscall+0x0/0x48
+ INFO: Freed in smack_cred_free+0xc4/0xd0 age=27 cpu=0 pid=1564
+ kfree+0x270/0x290
+ smack_cred_free+0xc4/0xd0
+ security_cred_free+0x34/0x3c
+ put_cred_rcu+0x58/0xcc
+ rcu_process_callbacks+0x738/0x998
+ __do_softirq+0x264/0x4cc
+ do_softirq+0x94/0xf4
+ irq_exit+0xbc/0x120
+ handle_IRQ+0x104/0x134
+ gic_handle_irq+0x70/0xac
+ __irq_svc+0x44/0x78
+ _raw_spin_unlock+0x18/0x48
+ sync_inodes_sb+0x17c/0x1d8
+ sync_filesystem+0xac/0xfc
+ vdfs_file_fsync+0x90/0xc0
+ vfs_fsync_range+0x74/0x7c
+ INFO: Slab 0xd3b23f50 objects=32 used=31 fp=0xc4635600 flags=0x4080
+ INFO: Object 0xc4635600 @offset=5632 fp=0x (null)
+
+ Bytes b4 c46355f0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
+ Object c4635600: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
+ Object c4635610: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
+ Object c4635620: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
+ Object c4635630: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
+ Redzone c4635640: bb bb bb bb ....
+ Padding c46356e8: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
+ Padding c46356f8: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
+ CPU: 5 PID: 834 Comm: launchpad_prelo Tainted: PBO 3.10.30 #1
+ Backtrace:
+ [<c00233a4>] (dump_backtrace+0x0/0x158) from [<c0023dec>] (show_stack+0x20/0x24)
+ r7:c4634010 r6:d3b23f50 r5:c4635600 r4:d1002140
+ [<c0023dcc>] (show_stack+0x0/0x24) from [<c06d6d7c>] (dump_stack+0x20/0x28)
+ [<c06d6d5c>] (dump_stack+0x0/0x28) from [<c01c1d50>] (print_trailer+0x124/0x144)
+ [<c01c1c2c>] (print_trailer+0x0/0x144) from [<c01c1e88>] (object_err+0x3c/0x44)
+ r7:c4635600 r6:d1002140 r5:d3b23f50 r4:c4635600
+ [<c01c1e4c>] (object_err+0x0/0x44) from [<c01cac18>] (kasan_report_error+0x2b8/0x538)
+ r6:d1002140 r5:d3b23f50 r4:c6429cf8 r3:c09e1aa7
+ [<c01ca960>] (kasan_report_error+0x0/0x538) from [<c01c9430>] (__asan_load4+0xd4/0xf8)
+ [<c01c935c>] (__asan_load4+0x0/0xf8) from [<c031e168>] (smack_task_to_inode+0x50/0x70)
+ r5:c4635600 r4:ca9da000
+ [<c031e118>] (smack_task_to_inode+0x0/0x70) from [<c031af64>] (security_task_to_inode+0x3c/0x44)
+ r5:cca25e80 r4:c0ba9780
+ [<c031af28>] (security_task_to_inode+0x0/0x44) from [<c023d614>] (pid_revalidate+0x124/0x178)
+ r6:00000000 r5:cca25e80 r4:cbabe3c0 r3:00008124
+ [<c023d4f0>] (pid_revalidate+0x0/0x178) from [<c01db98c>] (lookup_fast+0x35c/0x43y4)
+ r9:c6429efc r8:00000101 r7:c079d940 r6:c6429e90 r5:c6429ed8 r4:c83c4148
+ [<c01db630>] (lookup_fast+0x0/0x434) from [<c01deec8>] (do_last.isra.24+0x1c0/0x1108)
+ [<c01ded08>] (do_last.isra.24+0x0/0x1108) from [<c01dff04>] (path_openat.isra.25+0xf4/0x648)
+ [<c01dfe10>] (path_openat.isra.25+0x0/0x648) from [<c01e1458>] (do_filp_open+0x3c/0x88)
+ [<c01e141c>] (do_filp_open+0x0/0x88) from [<c01ccb28>] (do_sys_open+0xf0/0x198)
+ r7:00000001 r6:c0ea2180 r5:0000000b r4:00000000
+ [<c01cca38>] (do_sys_open+0x0/0x198) from [<c01ccc00>] (SyS_open+0x30/0x34)
+ [<c01ccbd0>] (SyS_open+0x0/0x34) from [<c001db80>] (ret_fast_syscall+0x0/0x48)
+ Read of size 4 by thread T834:
+ Memory state around the buggy address:
+ c4635380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+ c4635400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
+ c4635480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+ c4635500: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
+ c4635580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+ >c4635600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ ^
+ c4635680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ c4635700: 00 00 00 00 04 fc fc fc fc fc fc fc fc fc fc fc
+ c4635780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+ c4635800: 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc fc
+ c4635880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+ ==================================================================
+
+Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
+Cc: <stable@vger.kernel.org>
+---
+ security/smack/smack.h | 10 ++++++++++
+ security/smack/smack_lsm.c | 24 +++++++++++++-----------
+ 2 files changed, 23 insertions(+), 11 deletions(-)
+
+diff --git a/security/smack/smack.h b/security/smack/smack.h
+index 7629eae..67ccb7b 100644
+--- a/security/smack/smack.h
++++ b/security/smack/smack.h
+@@ -299,6 +299,16 @@ static inline struct smack_known *smk_of_task(const struct task_smack *tsp)
+ return tsp->smk_task;
+ }
+
++static inline struct smack_known *smk_of_task_struct(const struct task_struct *t)
++{
++ struct smack_known *skp;
++
++ rcu_read_lock();
++ skp = smk_of_task(__task_cred(t)->security);
++ rcu_read_unlock();
++ return skp;
++}
++
+ /*
+ * Present a pointer to the forked smack label entry in an task blob.
+ */
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 12eb355..05ffb24 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -43,8 +43,6 @@
+ #include <linux/binfmts.h>
+ #include "smack.h"
+
+-#define task_security(task) (task_cred_xxx((task), security))
+-
+ #define TRANS_TRUE "TRUE"
+ #define TRANS_TRUE_SIZE 4
+
+@@ -123,7 +121,7 @@ static int smk_bu_current(char *note, struct smack_known *oskp,
+ static int smk_bu_task(struct task_struct *otp, int mode, int rc)
+ {
+ struct task_smack *tsp = current_security();
+- struct task_smack *otsp = task_security(otp);
++ struct smack_known *smk_task = smk_of_task_struct(otp);
+ char acc[SMK_NUM_ACCESS_TYPE + 1];
+
+ if (rc <= 0)
+@@ -131,7 +129,7 @@ static int smk_bu_task(struct task_struct *otp, int mode, int rc)
+
+ smk_bu_mode(mode, acc);
+ pr_info("Smack Bringup: (%s %s %s) %s to %s\n",
+- tsp->smk_task->smk_known, otsp->smk_task->smk_known, acc,
++ tsp->smk_task->smk_known, smk_task->smk_known, acc,
+ current->comm, otp->comm);
+ return 0;
+ }
+@@ -352,7 +350,8 @@ static int smk_ptrace_rule_check(struct task_struct *tracer,
+ saip = &ad;
+ }
+
+- tsp = task_security(tracer);
++ rcu_read_lock();
++ tsp = __task_cred(tracer)->security;
+ tracer_known = smk_of_task(tsp);
+
+ if ((mode & PTRACE_MODE_ATTACH) &&
+@@ -372,11 +371,14 @@ static int smk_ptrace_rule_check(struct task_struct *tracer,
+ tracee_known->smk_known,
+ 0, rc, saip);
+
++ rcu_read_unlock();
+ return rc;
+ }
+
+ /* In case of rule==SMACK_PTRACE_DEFAULT or mode==PTRACE_MODE_READ */
+ rc = smk_tskacc(tsp, tracee_known, smk_ptrace_mode(mode), saip);
++
++ rcu_read_unlock();
+ return rc;
+ }
+
+@@ -403,7 +405,7 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
+ if (rc != 0)
+ return rc;
+
+- skp = smk_of_task(task_security(ctp));
++ skp = smk_of_task_struct(ctp);
+
+ rc = smk_ptrace_rule_check(current, skp, mode, __func__);
+ return rc;
+@@ -1831,7 +1833,7 @@ static int smk_curacc_on_task(struct task_struct *p, int access,
+ const char *caller)
+ {
+ struct smk_audit_info ad;
+- struct smack_known *skp = smk_of_task(task_security(p));
++ struct smack_known *skp = smk_of_task_struct(p);
+ int rc;
+
+ smk_ad_init(&ad, caller, LSM_AUDIT_DATA_TASK);
+@@ -1884,7 +1886,7 @@ static int smack_task_getsid(struct task_struct *p)
+ */
+ static void smack_task_getsecid(struct task_struct *p, u32 *secid)
+ {
+- struct smack_known *skp = smk_of_task(task_security(p));
++ struct smack_known *skp = smk_of_task_struct(p);
+
+ *secid = skp->smk_secid;
+ }
+@@ -1991,7 +1993,7 @@ static int smack_task_kill(struct task_struct *p, struct siginfo *info,
+ {
+ struct smk_audit_info ad;
+ struct smack_known *skp;
+- struct smack_known *tkp = smk_of_task(task_security(p));
++ struct smack_known *tkp = smk_of_task_struct(p);
+ int rc;
+
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+@@ -2045,7 +2047,7 @@ static int smack_task_wait(struct task_struct *p)
+ static void smack_task_to_inode(struct task_struct *p, struct inode *inode)
+ {
+ struct inode_smack *isp = inode->i_security;
+- struct smack_known *skp = smk_of_task(task_security(p));
++ struct smack_known *skp = smk_of_task_struct(p);
+
+ isp->smk_inode = skp;
+ }
+@@ -3227,7 +3229,7 @@ unlockandout:
+ */
+ static int smack_getprocattr(struct task_struct *p, char *name, char **value)
+ {
+- struct smack_known *skp = smk_of_task(task_security(p));
++ struct smack_known *skp = smk_of_task_struct(p);
+ char *cp;
+ int slen;
+
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0053-Smack-Repair-netfilter-dependency.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0053-Smack-Repair-netfilter-dependency.patch
new file mode 100644
index 0000000..3e2a081
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0053-Smack-Repair-netfilter-dependency.patch
@@ -0,0 +1,39 @@
+From 31bb2085e178585b3c04b46da686429bf916b39c Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Fri, 23 Jan 2015 09:31:01 -0800
+Subject: [PATCH 53/54] Smack: Repair netfilter dependency
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+On 1/23/2015 8:20 AM, Jim Davis wrote:
+> Building with the attached random configuration file,
+>
+> security/smack/smack_netfilter.c: In function ‘smack_ipv4_output’:
+> security/smack/smack_netfilter.c:55:6: error: ‘struct sk_buff’ has no
+> member named ‘secmark’
+> skb->secmark = skp->smk_secid;
+> ^
+> make[2]: *** [security/smack/smack_netfilter.o] Error 1
+
+The existing Makefile used the wrong configuration option to
+determine if smack_netfilter should be built. This sets it right.
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/security/smack/Makefile b/security/smack/Makefile
+index 616cf93..ee2ebd5 100644
+--- a/security/smack/Makefile
++++ b/security/smack/Makefile
+@@ -5,4 +5,4 @@
+ obj-$(CONFIG_SECURITY_SMACK) := smack.o
+
+ smack-y := smack_lsm.o smack_access.o smackfs.o
+-smack-$(CONFIG_NETFILTER) += smack_netfilter.o
++smack-$(CONFIG_SECURITY_SMACK_NETFILTER) += smack_netfilter.o
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0054-Smack-secmark-connections.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0054-Smack-secmark-connections.patch
new file mode 100644
index 0000000..e64ff9e
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0054-Smack-secmark-connections.patch
@@ -0,0 +1,50 @@
+From 6a5bed53d2a016b6dfe09abcaabd0278f06838f4 Mon Sep 17 00:00:00 2001
+From: Casey Schaufler <casey@schaufler-ca.com>
+Date: Wed, 11 Feb 2015 12:52:32 -0800
+Subject: [PATCH 54/54] Smack: secmark connections
+
+If the secmark is available us it on connection as
+well as packet delivery.
+
+Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
+---
+ security/smack/smack_lsm.c | 16 ++++++++++++++++
+ 1 file changed, 16 insertions(+)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 05ffb24..895fe5c 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3819,6 +3819,18 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ }
+ #endif /* CONFIG_IPV6 */
+
++#ifdef CONFIG_SECURITY_SMACK_NETFILTER
++ /*
++ * If there is a secmark use it rather than the CIPSO label.
++ * If there is no secmark fall back to CIPSO.
++ * The secmark is assumed to reflect policy better.
++ */
++ if (skb && skb->secmark != 0) {
++ skp = smack_from_secid(skb->secmark);
++ goto access_check;
++ }
++#endif /* CONFIG_SECURITY_SMACK_NETFILTER */
++
+ netlbl_secattr_init(&secattr);
+ rc = netlbl_skbuff_getattr(skb, family, &secattr);
+ if (rc == 0)
+@@ -3827,6 +3839,10 @@ static int smack_inet_conn_request(struct sock *sk, struct sk_buff *skb,
+ skp = &smack_known_huh;
+ netlbl_secattr_destroy(&secattr);
+
++#ifdef CONFIG_SECURITY_SMACK_NETFILTER
++access_check:
++#endif
++
+ #ifdef CONFIG_AUDIT
+ smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
+ ad.a.u.net->family = family;
+--
+2.1.4
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/README b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/README
new file mode 100644
index 0000000..44216cf
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/README
@@ -0,0 +1,153 @@
+Patches in this directory were generated on top of the kernel
+
+ git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-backport.git
+
+branch
+
+ bsp/v3.10.31-ltsi/rcar-gen2-1.9.2
+
+This patches are subdivided in 3 sets.
+
+Set 1: from 3.10-rc1 to 3.14
+
+ 0001-Smack-Local-IPv6-port-based-controls.patch
+ 0002-Smack-Improve-access-check-performance.patch
+ 0003-Smack-Add-smkfstransmute-mount-option.patch
+ 0004-Smack-Fix-possible-NULL-pointer-dereference-at-smk_n.patch
+ 0005-Smack-Fix-the-bug-smackcipso-can-t-set-CIPSO-correct.patch
+ 0006-Security-Add-Hook-to-test-if-the-particular-xattr-is.patch
+ 0007-xattr-Constify-name-member-of-struct-xattr.patch
+ 0008-security-smack-fix-memleak-in-smk_write_rules_list.patch
+ 0009-security-smack-add-a-hash-table-to-quicken-smk_find_.patch
+ 0010-Smack-network-label-match-fix.patch
+ 0011-Smack-IPv6-casting-error-fix-for-3.11.patch
+ 0012-Smack-parse-multiple-rules-per-write-to-load2-up-to-.patch
+ 0013-Smack-Implement-lock-security-mode.patch
+ 0014-Smack-Ptrace-access-check-mode.patch
+ 0015-smack-fix-allow-either-entry-be-missing-on-access-ac.patch
+ 0016-Smack-Prevent-the-and-labels-from-being-used-in-SMAC.patch
+ 0017-Smack-Make-the-syslog-control-configurable.patch
+ 0018-Smack-change-rule-cap-check.patch
+ 0019-Smack-Rationalize-mount-restrictions.patch
+ 0020-Smack-File-receive-audit-correction.patch
+ 0021-smack-call-WARN_ONCE-instead-of-calling-audit_log_st.patch
+
+
+Set 2: from 3.14 to 3.19
+
+ 0022-smack-fix-key-permission-verification.patch
+ 0023-Minor-improvement-of-smack_sb_kern_mount.patch
+ 0024-Smack-fix-the-subject-object-order-in-smack_ptrace_t.patch
+ 0025-Smack-unify-all-ptrace-accesses-in-the-smack.patch
+ 0026-Smack-adds-smackfs-ptrace-interface.patch
+ 0027-bugfix-patch-for-SMACK.patch
+ 0028-SMACK-Fix-handling-value-NULL-in-post-setxattr.patch
+ 0029-Smack-Correctly-remove-SMACK64TRANSMUTE-attribute.patch
+ 0030-Smack-bidirectional-UDS-connect-check.patch
+ 0031-Smack-Verify-read-access-on-file-open-v3.patch
+ 0032-Smack-Label-cgroup-files-for-systemd.patch
+ 0033-Warning-in-scanf-string-typing.patch
+ 0034-Smack-fix-behavior-of-smack_inode_listsecurity.patch
+ 0035-Smack-handle-zero-length-security-labels-without-pan.patch
+ 0036-Smack-remove-unneeded-NULL-termination-from-securtit.patch
+ 0037-Smack-Fix-setting-label-on-successful-file-open.patch
+ 0038-Smack-Bring-up-access-mode.patch
+ 0039-Small-fixes-in-comments-describing-function-paramete.patch
+ 0040-Fix-a-bidirectional-UDS-connect-check-typo.patch
+ 0041-Make-Smack-operate-on-smack_known-struct-where-it-st.patch
+ 0042-Smack-Lock-mode-for-the-floor-and-hat-labels.patch
+ 0043-Security-smack-replace-kzalloc-with-kmem_cache-for-i.patch
+ 0044-security-smack-fix-out-of-bounds-access-in-smk_parse.patch
+
+Set 3: from 3.19 to 4.0
+
+ 0045-smack-miscellaneous-small-fixes-in-function-comments.patch
+ 0046-smack-fix-logic-in-smack_inode_init_security-functio.patch
+ 0047-smack-introduce-a-special-case-for-tmpfs-in-smack_d_.patch
+ 0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch
+ 0049-Smack-Rework-file-hooks.patch
+ 0050-Smack-secmark-support-for-netfilter.patch
+ 0051-smack-Add-missing-logging-in-bidirectional-UDS-conne.patch
+ 0052-smack-fix-possible-use-after-frees-in-task_security-.patch
+ 0053-Smack-Repair-netfilter-dependency.patch
+ 0054-Smack-secmark-connections.patch
+
+Some rewritting occured to avoid to take the commits below that are
+affecting smack codes without being important for smack.
+
+ f589594 KEYS: Move the flags representing required permission to linux/key.h
+ 41c3bd2 netlabel: fix a problem when setting bits below the previously lowest bit
+ 4b8feff netlabel: fix the horribly broken catmap functions
+ 4fbe63d netlabel: shorter names for the NetLabel catmap funcs/structs
+ e0b93ed security: make security_file_set_fowner, f_setown and __f_setown void return
+ a455589 assorted conversions to %p[dD]
+
+Some caution has to be taken about evolution of netlabel that is not
+integrated.
+
+Here is the short log of the commit integrated (not the one prefixed
+with sharp).
+
+ c673944 Smack: Local IPv6 port based controls
+ 2f823ff Smack: Improve access check performance
+ e830b39 Smack: Add smkfstransmute mount option
+ 8cd77a0 Smack: Fix possible NULL pointer dereference at smk_netlbl_mls()
+ 0fcfee6 Smack: Fix the bug smackcipso can't set CIPSO correctly
+ 746df9b Security: Add Hook to test if the particular xattr is part of a MAC model.
+ 9548906 xattr: Constify ->name member of "struct xattr".
+ 470043b security: smack: fix memleak in smk_write_rules_list()
+ 4d7cf4a security: smack: add a hash table to quicken smk_find_entry()
+ 677264e Smack: network label match fix
+ 6ea0624 Smack: IPv6 casting error fix for 3.11
+ 10289b0 Smack: parse multiple rules per write to load2, up to PAGE_SIZE-1 bytes
+ c0ab6e5 Smack: Implement lock security mode
+ b5dfd80 Smack: Ptrace access check mode
+ 398ce07 smack: fix: allow either entry be missing on access/access2 check (v2)
+ 19760ad Smack: Prevent the * and @ labels from being used in SMACK64EXEC
+ 00f84f3 Smack: Make the syslog control configurable
+ 4afde48 Smack: change rule cap check
+ 24ea1b6 Smack: Rationalize mount restrictions
+ 4482a44 Smack: File receive audit correction
+ 4eb0f4a smack: call WARN_ONCE() instead of calling audit_log_start()
+ # f589594 KEYS: Move the flags representing required permission to linux/key.h
+ fffea21 smack: fix key permission verifgit checkout ication
+ 55dfc5d Minor improvement of 'smack_sb_kern_mount'
+ 959e6c7 Smack: fix the subject/object order in smack_ptrace_traceme()
+ 5663884 Smack: unify all ptrace accesses in the smack
+ 6686781 Smack: adds smackfs/ptrace interface
+ 5e9ab59 bugfix patch for SMACK
+ 9598f4c SMACK: Fix handling value==NULL in post setxattr
+ f59bdfb Smack: Correctly remove SMACK64TRANSMUTE attribute
+ 54e70ec Smack: bidirectional UDS connect check
+ a6834c0 Smack: Verify read access on file open - v3
+ 36ea735 Smack: Label cgroup files for systemd
+ ec554fa Warning in scanf string typing
+ # 41c3bd2 netlabel: fix a problem when setting bits below the previously lowest bit
+ # 4b8feff netlabel: fix the horribly broken catmap functions
+ # 4fbe63d netlabel: shorter names for the NetLabel catmap funcs/structs
+ fd5c9d2 Smack: fix behavior of smack_inode_listsecurity
+ b862e56 Smack: handle zero-length security labels without panic
+ da1b635 Smack: remove unneeded NULL-termination from securtity label
+ d83d2c2 Smack: Fix setting label on successful file open
+ d166c80 Smack: Bring-up access mode
+ e95ef49 Small fixes in comments describing function parameters
+ d0175790 Fix a bidirectional UDS connect check typo
+ 21c7eae Make Smack operate on smack_known struct where it still used char*
+ # e0b93ed security: make security_file_set_fowner, f_setown and __f_setown void return
+ 6c892df Smack: Lock mode for the floor and hat labels
+ 1a5b472 Security: smack: replace kzalloc with kmem_cache for inode_smack
+ # a455589 assorted conversions to %p[dD]
+ 5c1b662 security: smack: fix out-of-bounds access in smk_parse_smack()
+ 1a28979 smack: miscellaneous small fixes in function comments
+ 68390cc smack: fix logic in smack_inode_init_security function
+ 1d8c232 smack: introduce a special case for tmpfs in smack_d_instantiate()
+ 96be7b5 smack: Fix a bidirectional UDS connect check typo
+ 5e7270a Smack: Rework file hooks
+ 69f287a Smack: secmark support for netfilter
+ 138a868 smack: Add missing logging in bidirectional UDS connect check
+ 6d1cff2 smack: fix possible use after frees in task_security() callers
+ 82b0b2c Smack: Repair netfilter dependency
+ 7f368ad Smack: secmark connections
+ # 8802565 Smack: Use d_is_positive() rather than testing dentry->d_inode
+
+
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas_3.10.bb b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas_3.10.bb
index 5d7e9f4..2386d98 100644
--- a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas_3.10.bb
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas_3.10.bb
@@ -1,5 +1,5 @@
require linux.inc
-require linux-dtb.inc
+require recipes-kernel/linux/linux-dtb.inc
require linux-dtb-append.inc
DESCRIPTION = "Linux kernel for the R-Car Generation 2 based board"
@@ -12,6 +12,7 @@ PV_append = "+git${SRCREV}"
RENESAS_BACKPORTS_URL="git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-backport.git"
SRCREV = "b8ca8c397343f4233f9f68fc3a5bf8e1c9b88251"
SRC_URI = "${RENESAS_BACKPORTS_URL};protocol=git;branch=bsp/v3.10.31-ltsi/rcar-gen2-1.9.2 \
+ file://0001-kernel-add-support-for-gcc-5.patch \
file://0001-arm-lager-Add-vmalloc-384M-to-bootargs-of-DTS.patch \
file://0001-arm-koelsch-Add-vmalloc-384M-to-bootargs-of-DTS.patch \
file://0001-arm-alt-Add-vmalloc-384M-to-bootargs-of-DTS.patch \
@@ -45,6 +46,8 @@ SRC_URI_append_porter = " \
file://0005-ARM-shmobile-porter-Sound-DMA-support-via-SRC-on-DTS.patch \
file://0006-ARM-shmobile-porter-Sound-DMA-support-via-DVC-on-DTS.patch \
file://0007-ARM-shmobile-porter-Fix-audio-clk-master-to-SSI-and-.patch \
+ file://0008-drm-rcar-du-r8a7791-disable-interlace-mode.patch \
+ file://0022-fanotify-fix-notification-of-groups-with-inode-mount.patch \
"
SRC_URI_append_silk = " \
@@ -67,6 +70,76 @@ SRC_URI_append_silk = " \
file://0018-porter-can-support.patch \
file://0019-i2c-busses-rcar-Workaround-arbitration-loss-error.patch \
file://0020-Silk-Remove-I2C1-clock-from-clk_enables.patch \
+ file://0021-drm-rcar-du-r8a7794-disable-interlace-mode.patch \
+"
+
+# smack patches are applied if DISTRO_FEATURES has "smack"
+# smack patches from 3.10-rc1 to 3.14
+SRC_URI_append_smack = " \
+ file://smack/0001-Smack-Local-IPv6-port-based-controls.patch \
+ file://smack/0002-Smack-Improve-access-check-performance.patch \
+ file://smack/0003-Smack-Add-smkfstransmute-mount-option.patch \
+ file://smack/0004-Smack-Fix-possible-NULL-pointer-dereference-at-smk_n.patch \
+ file://smack/0005-Smack-Fix-the-bug-smackcipso-can-t-set-CIPSO-correct.patch \
+ file://smack/0006-Security-Add-Hook-to-test-if-the-particular-xattr-is.patch \
+ file://smack/0007-xattr-Constify-name-member-of-struct-xattr.patch \
+ file://smack/0008-security-smack-fix-memleak-in-smk_write_rules_list.patch \
+ file://smack/0009-security-smack-add-a-hash-table-to-quicken-smk_find_.patch \
+ file://smack/0010-Smack-network-label-match-fix.patch \
+ file://smack/0011-Smack-IPv6-casting-error-fix-for-3.11.patch \
+ file://smack/0012-Smack-parse-multiple-rules-per-write-to-load2-up-to-.patch \
+ file://smack/0013-Smack-Implement-lock-security-mode.patch \
+ file://smack/0014-Smack-Ptrace-access-check-mode.patch \
+ file://smack/0015-smack-fix-allow-either-entry-be-missing-on-access-ac.patch \
+ file://smack/0016-Smack-Prevent-the-and-labels-from-being-used-in-SMAC.patch \
+ file://smack/0017-Smack-Make-the-syslog-control-configurable.patch \
+ file://smack/0018-Smack-change-rule-cap-check.patch \
+ file://smack/0019-Smack-Rationalize-mount-restrictions.patch \
+ file://smack/0020-Smack-File-receive-audit-correction.patch \
+ file://smack/0021-smack-call-WARN_ONCE-instead-of-calling-audit_log_st.patch \
+"
+
+# smack patches are applied if DISTRO_FEATURES has "smack"
+# smack patches from 3.14 to 3.19
+SRC_URI_append_smack = " \
+ file://smack/0022-smack-fix-key-permission-verification.patch \
+ file://smack/0023-Minor-improvement-of-smack_sb_kern_mount.patch \
+ file://smack/0024-Smack-fix-the-subject-object-order-in-smack_ptrace_t.patch \
+ file://smack/0025-Smack-unify-all-ptrace-accesses-in-the-smack.patch \
+ file://smack/0026-Smack-adds-smackfs-ptrace-interface.patch \
+ file://smack/0027-bugfix-patch-for-SMACK.patch \
+ file://smack/0028-SMACK-Fix-handling-value-NULL-in-post-setxattr.patch \
+ file://smack/0029-Smack-Correctly-remove-SMACK64TRANSMUTE-attribute.patch \
+ file://smack/0030-Smack-bidirectional-UDS-connect-check.patch \
+ file://smack/0031-Smack-Verify-read-access-on-file-open-v3.patch \
+ file://smack/0032-Smack-Label-cgroup-files-for-systemd.patch \
+ file://smack/0033-Warning-in-scanf-string-typing.patch \
+ file://smack/0034-Smack-fix-behavior-of-smack_inode_listsecurity.patch \
+ file://smack/0035-Smack-handle-zero-length-security-labels-without-pan.patch \
+ file://smack/0036-Smack-remove-unneeded-NULL-termination-from-securtit.patch \
+ file://smack/0037-Smack-Fix-setting-label-on-successful-file-open.patch \
+ file://smack/0038-Smack-Bring-up-access-mode.patch \
+ file://smack/0039-Small-fixes-in-comments-describing-function-paramete.patch \
+ file://smack/0040-Fix-a-bidirectional-UDS-connect-check-typo.patch \
+ file://smack/0041-Make-Smack-operate-on-smack_known-struct-where-it-st.patch \
+ file://smack/0042-Smack-Lock-mode-for-the-floor-and-hat-labels.patch \
+ file://smack/0043-Security-smack-replace-kzalloc-with-kmem_cache-for-i.patch \
+ file://smack/0044-security-smack-fix-out-of-bounds-access-in-smk_parse.patch \
+"
+
+# smack patches are applied if DISTRO_FEATURES has "smack"
+# smack patches from 3.19 to 4.0
+SRC_URI_append_smack = " \
+ file://smack/0045-smack-miscellaneous-small-fixes-in-function-comments.patch \
+ file://smack/0046-smack-fix-logic-in-smack_inode_init_security-functio.patch \
+ file://smack/0047-smack-introduce-a-special-case-for-tmpfs-in-smack_d_.patch \
+ file://smack/0048-smack-Fix-a-bidirectional-UDS-connect-check-typo.patch \
+ file://smack/0049-Smack-Rework-file-hooks.patch \
+ file://smack/0050-Smack-secmark-support-for-netfilter.patch \
+ file://smack/0051-smack-Add-missing-logging-in-bidirectional-UDS-conne.patch \
+ file://smack/0052-smack-fix-possible-use-after-frees-in-task_security-.patch \
+ file://smack/0053-Smack-Repair-netfilter-dependency.patch \
+ file://smack/0054-Smack-secmark-connections.patch \
"
S = "${WORKDIR}/git"
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux.inc b/meta-rcar-gen2/recipes-kernel/linux/linux.inc
index 886c2a9..806be22 100644
--- a/meta-rcar-gen2/recipes-kernel/linux/linux.inc
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux.inc
@@ -15,6 +15,9 @@ UDEV_GE_141 ?= "1"
# Enable cgroups support for systemd
KERNEL_ENABLE_CGROUPS ?= "1"
+# combine oe-core way with angstrom DISTRO_TYPE
+DISTRO_TYPE ?= "${@base_contains("IMAGE_FEATURES", "debug-tweaks", "debug", "release",d)}"
+
# Set the verbosity of kernel messages during runtime
# You can define CMDLINE_DEBUG in your local.conf or distro.conf to override this behaviour
CMDLINE_DEBUG ?= '${@base_conditional("DISTRO_TYPE", "release", "quiet", "debug", d)}'
@@ -28,15 +31,15 @@ kernel_configure_variable() {
CONF_SED_SCRIPT="$CONF_SED_SCRIPT /CONFIG_$1[ =]/d;"
if test "$2" = "n"
then
- echo "# CONFIG_$1 is not set" >> ${S}/.config
+ echo "# CONFIG_$1 is not set" >> ${B}/.config
else
- echo "CONFIG_$1=$2" >> ${S}/.config
+ echo "CONFIG_$1=$2" >> ${B}/.config
fi
}
do_configure_prepend() {
# Clean .config
- echo "" > ${S}/.config
+ echo "" > ${B}/.config
CONF_SED_SCRIPT=""
# oabi / eabi support
@@ -59,6 +62,11 @@ do_configure_prepend() {
kernel_configure_variable LOCALVERSION "\"\""
kernel_configure_variable LOCALVERSION_AUTO n
+ # Distribution-dependent kernel features
+ case "${DISTRO_FEATURES}" in
+ *bluetooth*) do_configure_bluetooth
+ esac
+
# Udev quirks
# Newer versions of udev mandate that sysfs doesn't have deprecated entries
if [ "${UDEV_GE_141}" = "1" ] ; then
@@ -108,10 +116,14 @@ do_configure_prepend() {
# Activate CONFIG_LEGACY_PTYS
kernel_configure_variable LEGACY_PTYS y
+ kernel_configure_variable LEGACY_PTY_COUNT 8
# needed for ttySC6 login on koelsch with systemd
kernel_configure_variable FHANDLE y
+ # needed for USB touchscreens
+ kernel_configure_variable HID_MULTITOUCH y
+
# additional configs needed for Genivi compliance
kernel_configure_variable EXPERIMENTAL y
kernel_configure_variable ECRYPT_FS y
@@ -122,19 +134,89 @@ do_configure_prepend() {
kernel_configure_variable INPUT_MISC y
kernel_configure_variable INPUT_UINPUT y
+ # psplash only
+ kernel_configure_variable FRAMEBUFFER_CONSOLE n
+ kernel_configure_variable LOGO n
+
+ # systemd requires following
+ kernel_configure_variable AUTOFS4_FS y
+ kernel_configure_variable IPV6 y
+ kernel_configure_variable SCHEDSTATS y
+
+ # AGL spec. mentioned following
+ kernel_configure_variable EXT4_FS y
+ kernel_configure_variable FANOTIFY y
+ kernel_configure_variable POSIX_MQUEUE y
+ kernel_configure_variable TUN y
+
+ # For containers support (AGL spec v1.0, section 7.3.1)
+ kernel_configure_variable NAMESPACES y
+ kernel_configure_variable UTS_NS n
+ kernel_configure_variable IPC_NS y
+ kernel_configure_variable USER_NS y
+ kernel_configure_variable PID_NS y
+ kernel_configure_variable NET_NS y
+
+ # nbdroot support
+ kernel_configure_variable BLK_DEV_LOOP y
+ kernel_configure_variable BLK_DEV_NBD y
+ kernel_configure_variable BLK_DEV_INITRD y
+ kernel_configure_variable RD_GZIP y
+ kernel_configure_variable RD_BZIP2 y
+ kernel_configure_variable RD_XZ y
+ kernel_configure_variable EXT4_FS y
+ kernel_configure_variable EXT4_USE_FOR_EXT23 y
+ kernel_configure_variable BLK_DEV_RAM y
+ kernel_configure_variable BLK_DEV_RAM_COUNT 2
+ kernel_configure_variable BLK_DEV_RAM_SIZE 16384
+
+ # only when distro is built for debug
+ if [ "${DISTRO_TYPE}" = "debug" ]; then
+ kernel_configure_variable BLK_DEV_LOOP y
+ fi
+
# Keep this the last line
# Remove all modified configs and add the rest to .config
- sed -e "${CONF_SED_SCRIPT}" < '${WORKDIR}/defconfig' >> '${S}/.config'
+ sed -e "${CONF_SED_SCRIPT}" < '${WORKDIR}/defconfig' >> '${B}/.config'
- yes '' | oe_runmake oldconfig
+ yes '' | oe_runmake -C ${S} O=${B} oldconfig
+}
+
+do_configure_bluetooth() {
+ # Needed for Bluetooth hardware support
+ kernel_configure_variable BT_HIDP y
+ kernel_configure_variable BT_HCIBTUSB m
+ kernel_configure_variable BT_BNEP m
+ kernel_configure_variable BT_BNEP_MC_FILTER y
+ kernel_configure_variable BT_BNEP_PROTO_FILTER y
+ kernel_configure_variable BT_RFCOMM m
+ kernel_configure_variable BT_RFCOMM_TTY y
+ kernel_configure_variable RFKILL m
}
do_configure_append_porter() {
# Enable CAN
kernel_configure_variable CAN y
+ kernel_configure_variable CAN_VCAN y
kernel_configure_variable CAN_RCAR y
- yes '' | oe_runmake oldconfig
+ yes '' | oe_runmake -C ${S} O=${B} oldconfig
+}
+
+do_configure_append_smack() {
+ # Enable Smack
+ kernel_configure_variable IP_NF_SECURITY m
+ kernel_configure_variable IP6_NF_SECURITY m
+ kernel_configure_variable EXT2_FS_SECURITY y
+ kernel_configure_variable EXT3_FS_SECURITY y
+ kernel_configure_variable EXT4_FS_SECURITY y
+ kernel_configure_variable SECURITY y
+ kernel_configure_variable SECURITY_SMACK y
+ kernel_configure_variable TMPFS_XATTR y
+
+ kernel_configure_variable DEFAULT_SECURITY "smack"
+ kernel_configure_variable DEFAULT_SECURITY_SMACK y
+ yes '' | oe_runmake -C ${S} O=${B} oldconfig
}
# Automatically depend on lzop-native if CONFIG_KERNEL_LZO is enabled