[gentoo-commits] proj/hardened-refpolicy:master commit in: policy/modules/kernel/, policy/modules/system/

["Kenton Groombridge" <concord@gentoo.org>]

commit:     70226d790395660a9e086b8c0eeec28acf2c7e3b
Author:     Kenton Groombridge <me <AT> concord <DOT> sh>
AuthorDate: Mon Mar  6 18:18:41 2023 +0000
Commit:     Kenton Groombridge <concord <AT> gentoo <DOT> org>
CommitDate: Fri Mar 31 17:11:32 2023 +0000
URL:        https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=70226d79

fs, udev: allow systemd-udevd various cgroup perms

Needed for systemd-udevd to create files under
/sys/fs/cgroup/system.slice/systemd-udevd.service/udev

Signed-off-by: Kenton Groombridge <me <AT> concord.sh>
Signed-off-by: Kenton Groombridge <concord <AT> gentoo.org>

 policy/modules/kernel/filesystem.if | 40 ++++++++++++++++++++++++++++++++++++-
 policy/modules/system/udev.te       |  6 +++++-
 2 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/policy/modules/kernel/filesystem.if b/policy/modules/kernel/filesystem.if
index af2023e62..a1282cf40 100644
--- a/policy/modules/kernel/filesystem.if
+++ b/policy/modules/kernel/filesystem.if
@@ -798,7 +798,6 @@ interface(`fs_getattr_cgroup',`
 interface(`fs_search_cgroup_dirs',`
 	gen_require(`
 		type cgroup_t;
-
 	')
 
 	search_dirs_pattern($1, cgroup_t, cgroup_t)
@@ -843,6 +842,25 @@ interface(`fs_ioctl_cgroup_dirs', `
 	dev_search_sysfs($1)
 ')
 
+########################################
+## <summary>
+##	Create cgroup directories.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`fs_create_cgroup_dirs',`
+	gen_require(`
+		type cgroup_t;
+	')
+
+	create_dirs_pattern($1, cgroup_t, cgroup_t)
+	dev_search_sysfs($1)
+')
+
 ########################################
 ## <summary>
 ##	Delete cgroup directories.
@@ -941,6 +959,26 @@ interface(`fs_read_cgroup_files',`
 	dev_search_sysfs($1)
 ')
 
+########################################
+## <summary>
+##	Create cgroup files.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`fs_create_cgroup_files',`
+	gen_require(`
+		type cgroup_t;
+
+	')
+
+	create_files_pattern($1, cgroup_t, cgroup_t)
+	dev_search_sysfs($1)
+')
+
 ########################################
 ## <summary>
 ##	Watch cgroup files.

diff --git a/policy/modules/system/udev.te b/policy/modules/system/udev.te
index 56cfa2fb8..2fae88354 100644
--- a/policy/modules/system/udev.te
+++ b/policy/modules/system/udev.te
@@ -261,7 +261,11 @@ ifdef(`distro_redhat',`
 ifdef(`init_systemd',`
 	files_search_kernel_modules(udev_t)
 
-	fs_read_cgroup_files(udev_t)
+	# systemd-udev creates cgroup files under
+	# /sys/fs/cgroup/system.slice/systemd-udevd.service/udev
+	fs_create_cgroup_dirs(udev_t)
+	fs_create_cgroup_files(udev_t)
+	fs_rw_cgroup_files(udev_t)
 
 	init_dgram_send(udev_t)
 	init_get_generic_units_status(udev_t)