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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_${PN}_append_with-lsm-smack = " smack"
DEPENDS_append_with-lsm-smack = " smack-native"
pkg_postinst_${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.
}
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