Integrate parts of meta-intel-iot-security

[AGL/meta-agl.git] / meta-security / recipes-core / base-files / base-files_%.bbappend

diff --git a/meta-security/recipes-core/base-files/base-files_%.bbappend b/meta-security/recipes-core/base-files/base-files_%.bbappend
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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.
+}