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-rw-r--r--meta-security/recipes-kernel/linux/linux-%.bbappend17
-rw-r--r--meta-security/recipes-kernel/linux/linux/audit.cfg2
-rw-r--r--meta-security/recipes-kernel/linux/linux/smack-default-lsm.cfg2
-rw-r--r--meta-security/recipes-kernel/linux/linux/smack.cfg8
4 files changed, 29 insertions, 0 deletions
diff --git a/meta-security/recipes-kernel/linux/linux-%.bbappend b/meta-security/recipes-kernel/linux/linux-%.bbappend
new file mode 100644
index 000000000..717d32e3a
--- /dev/null
+++ b/meta-security/recipes-kernel/linux/linux-%.bbappend
@@ -0,0 +1,17 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/linux:"
+
+IS_KERNEL_RECIPE := "${@bb.data.inherits_class('kernel', d) and 'yes' or 'no'}"
+SMACK_KERNEL_SRC_URI_no = ""
+SMACK_KERNEL_SRC_URI_yes = ""
+
+# Kernel config fragment enabling Smack, without making it the default explicitly.
+SMACK_KERNEL_SRC_URI_yes += "file://smack.cfg"
+
+# When added, set Smack as the default LSM.
+SMACK_DEFAULT_SECURITY_CFG = "file://smack-default-lsm.cfg"
+
+# Add it by default, can be overridden by changing this variable here.
+SMACK_DEFAULT_SECURITY ??= "${SMACK_DEFAULT_SECURITY_CFG}"
+SMACK_KERNEL_SRC_URI_yes += " ${SMACK_DEFAULT_SECURITY}"
+
+SRC_URI_append_with-lsm-smack = "${SMACK_KERNEL_SRC_URI_${IS_KERNEL_RECIPE}}"
diff --git a/meta-security/recipes-kernel/linux/linux/audit.cfg b/meta-security/recipes-kernel/linux/linux/audit.cfg
new file mode 100644
index 000000000..214dbe33f
--- /dev/null
+++ b/meta-security/recipes-kernel/linux/linux/audit.cfg
@@ -0,0 +1,2 @@
+CONFIG_AUDIT=y
+CONFIG_AUDITSYSCALL=y
diff --git a/meta-security/recipes-kernel/linux/linux/smack-default-lsm.cfg b/meta-security/recipes-kernel/linux/linux/smack-default-lsm.cfg
new file mode 100644
index 000000000..b5c48454e
--- /dev/null
+++ b/meta-security/recipes-kernel/linux/linux/smack-default-lsm.cfg
@@ -0,0 +1,2 @@
+CONFIG_DEFAULT_SECURITY="smack"
+CONFIG_DEFAULT_SECURITY_SMACK=y
diff --git a/meta-security/recipes-kernel/linux/linux/smack.cfg b/meta-security/recipes-kernel/linux/linux/smack.cfg
new file mode 100644
index 000000000..62f465a45
--- /dev/null
+++ b/meta-security/recipes-kernel/linux/linux/smack.cfg
@@ -0,0 +1,8 @@
+CONFIG_IP_NF_SECURITY=m
+CONFIG_IP6_NF_SECURITY=m
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_SMACK=y
+CONFIG_TMPFS_XATTR=y