[PATCH 3/3] selinux: Remove 'make' dependency

[Nikola Knazekova]

From: Vit Mojzis <vmojzis at redhat.com>

Compile the policy using a shell script executed by meson.

Signed-off-by: Vit Mojzis <vmojzis at redhat.com>
---
 libvirt.spec.in           | 12 ------------
 meson.build               | 12 ++++++++++++
 selinux/compile_policy.sh | 39 +++++++++++++++++++++++++++++++++++++++
 selinux/meson.build       | 23 +++++++++++++++++++++++
 4 files changed, 74 insertions(+), 12 deletions(-)
 create mode 100755 selinux/compile_policy.sh
 create mode 100644 selinux/meson.build

diff --git a/libvirt.spec.in b/libvirt.spec.in
index db08d91043..de664084fa 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -1240,14 +1240,6 @@ export SOURCE_DATE_EPOCH=$(stat --printf='%Y' %{_specdir}/%{name}.spec)
            %{?arg_login_shell}
 
 %meson_build
-%if 0%{?with_selinux}
-# SELinux policy (originally from selinux-policy-contrib)
-# this policy module will override the production module
-cd selinux
-
-make -f %{_datadir}/selinux/devel/Makefile %{modulename}.pp
-bzip2 -9 %{modulename}.pp
-%endif
 
 %install
 rm -fr %{buildroot}
@@ -1332,10 +1324,6 @@ mv $RPM_BUILD_ROOT%{_datadir}/systemtap/tapset/libvirt_qemu_probes.stp \
     %endif
 %endif
 
-%if 0%{?with_selinux}
-install -D -m 0644 selinux/%{modulename}.pp.bz2 %{buildroot}%{_datadir}/selinux/packages/%{selinuxtype}/%{modulename}.pp.bz2
-%endif
-
 %check
 # Building on slow archs, like emulated s390x in Fedora copr, requires
 # raising the test timeout
diff --git a/meson.build b/meson.build
index c81c6ab205..d060e441b5 100644
--- a/meson.build
+++ b/meson.build
@@ -2183,6 +2183,18 @@ endif
 
 subdir('build-aux')
 
+os_release = run_command('grep', '^ID=', '/etc/os-release').stdout()
+os_version = run_command('grep', '^VERSION_ID=', '/etc/os-release').stdout().split('=')
+if (os_version.length() == 2)
+  os_version = os_version[1]
+else
+  os_version = 0
+endif
+
+if ((os_release.contains('fedora') and os_version.version_compare('>32')) or
+    (os_release.contains('rhel') and os_version.version_compare('>7')))
+  subdir('selinux')
+endif
 
 # install pkgconfig files
 pkgconfig_files = [
diff --git a/selinux/compile_policy.sh b/selinux/compile_policy.sh
new file mode 100755
index 0000000000..02780e4aed
--- /dev/null
+++ b/selinux/compile_policy.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+set -x
+
+if [[ $# -ne 5 ]] ; then
+    echo "Usage: compile_policy.sh <policy>.te <policy>.if <policy>.fc <output>.pp <tmpdir>"
+    exit 1
+fi
+
+# checkmodule requires consistent file names
+MODULE_NAME=$(basename -- "$1")
+MODULE_NAME=${MODULE_NAME%.*}
+
+M4PARAM="-D enable_mcs -D distro_redhat -D hide_broken_symptoms -D mls_num_sens=16 -D mls_num_cats=1024 -D mcs_num_cats=1024"
+SHAREDIR="/usr/share/selinux"
+HEADERDIR="$SHAREDIR/devel/include"
+M4SUPPORT=$(echo $HEADERDIR/support/*.spt)
+HEADER_LAYERS=$(find "/usr/share/selinux/devel/include"/* -maxdepth 0 -type d | grep -v "/usr/share/selinux/devel/include/support")
+HEADER_INTERFACES=""
+for LAYER in $HEADER_LAYERS
+do
+    HEADER_INTERFACES="$HEADER_INTERFACES $(echo $LAYER/*.if)"
+done
+
+# prepare temp folder
+mkdir -p $5
+# remove old trash from the temp folder
+rm -rf "$5/iferror.m4 $5/all_interfaces.conf $5/$MODULE_NAME.*"
+# tmp/all_interfaces.conf
+echo "ifdef(\`__if_error',\`m4exit(1)')" > $5/iferror.m4
+echo "divert(-1)" > $5/all_interfaces.conf
+m4 $M4SUPPORT $HEADER_INTERFACES $2 $5/iferror.m4 | sed -e s/dollarsstar/\$\$\*/g >> $5/all_interfaces.conf
+echo "divert" >> $5/all_interfaces.conf
+# tmp/%.mod
+m4 $M4PARAM -s $M4SUPPORT $5/all_interfaces.conf $1 > $5/$MODULE_NAME.tmp
+/usr/bin/checkmodule -M -m $5/$MODULE_NAME.tmp -o $5/$MODULE_NAME.mod
+# tmp/%.mod.fc
+m4 $M4PARAM $M4SUPPORT $3 > $5/$MODULE_NAME.mod.fc
+# %.pp
+/usr/bin/semodule_package -o $4 -m $5/$MODULE_NAME.mod -f $5/$MODULE_NAME.mod.fc
diff --git a/selinux/meson.build b/selinux/meson.build
new file mode 100644
index 0000000000..1c76fd40aa
--- /dev/null
+++ b/selinux/meson.build
@@ -0,0 +1,23 @@
+selinux_sources = [
+  'virt.te',
+  'virt.if',
+  'virt.fc',
+]
+
+compile_policy_prog = find_program('compile_policy.sh')
+
+virt_pp = custom_target('virt.pp',
+  output : 'virt.pp',
+  input : selinux_sources,
+  command : [compile_policy_prog, '@INPUT@', '@OUTPUT@', 'selinux/tmp'],
+  install : false)
+
+bzip2_prog = find_program('bzip2')
+
+bzip = custom_target('virt.pp.bz2',
+  output : 'virt.pp.bz2',
+  input : virt_pp,
+  command : [bzip2_prog, '-c', '-9', '@INPUT@'],
+  capture : true,
+  install : true,
+  install_dir : 'share/selinux/packages/targeted')
-- 
2.29.2