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authorJosé Bollo <jose.bollo@iot.bzh>2018-01-24 11:38:43 +0100
committerJosé Bollo <jose.bollo@iot.bzh>2018-02-13 11:02:00 +0100
commitf70d712e4f505f5c5b50ae17f4f023d20a667568 (patch)
tree57b0aaa702651012e1adfc07f9b6b6c580506f66 /meta-security/recipes-core/base-files
parent3f962c7d202055777dd0238f12dbcf70f09ac07d (diff)
Integrate parts of meta-intel-iot-security
Adds the recipes of the sub layers - meta-security-framework - meta-security-smack Change-Id: I618608008a3b3d1d34adb6e38048110f13ac0643 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
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+# Install default Smack rules, copied from a running Tizen IVI 3.0.
+# Corresponds to manifest file from default-access-domains in Tizen:
+# https://review.tizen.org/git?p=platform/core/security/default-ac-domains.git;a=blob;f=packaging/default-ac-domains.manifest
+do_install_append_with-lsm-smack () {
+ install -d ${D}/${sysconfdir}/smack/accesses.d
+ cat >${D}/${sysconfdir}/smack/accesses.d/default-access-domains <<EOF
+System _ -----l
+System System::Log rwxa--
+System System::Run rwxat-
+System System::Shared rwxat-
+System ^ rwxa--
+_ System::Run rwxat-
+_ System -wx---
+^ System::Log rwxa--
+^ System::Run rwxat-
+^ System rwxa--
+EOF
+ chmod 0644 ${D}/${sysconfdir}/smack/accesses.d/default-access-domains
+
+ install -d ${D}/${libdir}/tmpfiles.d
+ cat >${D}/${libdir}/tmpfiles.d/packet-forwarding.conf <<EOF
+t /proc/sys/net/ipv4/conf/all/forwarding - - - - security.SMACK64=*
+t /proc/sys/net/ipv6/conf/all/forwarding - - - - security.SMACK64=*
+t /proc/sys/net/ipv4/conf/default/forwarding - - - - security.SMACK64=*
+t /proc/sys/net/ipv6/conf/default/forwarding - - - - security.SMACK64=*
+EOF
+ chmod 0644 ${D}/${libdir}/tmpfiles.d/packet-forwarding.conf
+
+ install -d ${D}/${base_libdir}/udev/rules.d
+ cat >${D}/${base_libdir}/udev/rules.d/85-netdev-ipconf-smacklabel.rules <<EOF
+SUBSYSTEM=="net", ENV{ID_NET_NAME}=="", RUN+="/bin/sh -c '/usr/bin/chsmack -a \* /proc/sys/net/ipv4/conf/%k/*'", RUN+="/bin/sh -c '/usr/bin/chsmack -a \* /proc/sys/net/ipv6/conf/%k/*'"
+
+SUBSYSTEM=="net", ENV{ID_NET_NAME}!="", RUN+="/bin/sh -c '/usr/bin/chsmack -a \* /proc/sys/net/ipv4/conf/\$env{ID_NET_NAME}/*'", RUN+="/bin/sh -c '/usr/bin/chsmack -a \* /proc/sys/net/ipv6/conf/\$env{ID_NET_NAME}/*'"
+EOF
+ chmod 0644 ${D}/${base_libdir}/udev/rules.d/85-netdev-ipconf-smacklabel.rules
+}
+
+# Do not rely on an rpm with manifest support. Apparently that approach
+# will no longer be used in Tizen 3.0. Instead set special Smack attributes
+# via postinst. This is much easier to use with bitbake, too:
+# - no need to maintain a patched rpm
+# - works for directories which are not packaged by default when empty
+RDEPENDS_${PN}_append_with-lsm-smack = " smack-userspace"
+DEPENDS_append_with-lsm-smack = " smack-userspace-native"
+pkg_postinst_${PN}_with-lsm-smack() {
+ #!/bin/sh -e
+
+ # https://review.tizen.org/gerrit/gitweb?p=platform/upstream/filesystem.git;a=blob;f=packaging/filesystem.manifest:
+ # <filesystem path="/etc" label="System::Shared" type="transmutable" />
+ install -d $D${sysconfdir}
+ # This has no effect on files installed into /etc during image construction
+ # because pseudo does not know the special semantic of SMACK::TRANSMUTE.
+ # To avoid having different xattrs on files inside /etc when pre-installed
+ # in an image vs. installed on a device, the xattr-images.bbclass has
+ # a workaround for this deficiency in pseudo.
+ chsmack -t $D${sysconfdir}
+ chsmack -a 'System::Shared' $D${sysconfdir}
+
+ # Same for /var. Any daemon running as "System" will get write access
+ # to everything.
+ install -d $D${localstatedir}
+ chsmack -t $D${localstatedir}
+ chsmack -a 'System::Shared' $D${localstatedir}
+
+ # <filesystem path="/tmp" label="*" />
+ mkdir -p $D/tmp
+ chsmack -a '*' $D/tmp
+
+ # <filesystem path="/var/log" label="System::Log" type="transmutable" />
+ # <filesystem path="/var/tmp" label="*" />
+ # These are in a file system mounted by systemd. We patch the systemd service
+ # to set these attributes.
+}