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

["Jason Zaman" <perfinion@gentoo.org>]

commit:     bdf027e057879dbba76e032570be27e1cc8ba4cc
Author:     Peter Morrow <pemorrow <AT> linux <DOT> microsoft <DOT> com>
AuthorDate: Wed Feb  5 15:47:47 2020 +0000
Commit:     Jason Zaman <perfinion <AT> gentoo <DOT> org>
CommitDate: Sat Feb 15 07:32:05 2020 +0000
URL:        https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=bdf027e0

systemd_tmpfiles_t: Allow systemd_tempfiles_t to change permissions in sysfs

Rules specified in system tmpfiles.d configuration files are often used to
change permissions on files in sysfs.

https://www.freedesktop.org/software/systemd/man/tmpfiles.d.html

Signed-off-by: Peter Morrow <pemorrow <AT> linux.microsoft.com>
Signed-off-by: Jason Zaman <perfinion <AT> gentoo.org>

 policy/modules/kernel/devices.if | 20 ++++++++++++++++++++
 policy/modules/system/systemd.te |  1 +
 2 files changed, 21 insertions(+)

diff --git a/policy/modules/kernel/devices.if b/policy/modules/kernel/devices.if
index afbd6d4a..1b83ea68 100644
--- a/policy/modules/kernel/devices.if
+++ b/policy/modules/kernel/devices.if
@@ -4413,6 +4413,26 @@ interface(`dev_relabel_all_sysfs',`
 	allow $1 sysfs_types:lnk_file relabel_lnk_file_perms;
 ')
 
+########################################
+## <summary>
+##  Set the attributes of sysfs files, directories and symlinks.
+## </summary>
+## <param name="domain">
+##  <summary>
+##  Domain allowed access.
+##  </summary>
+## </param>
+#
+interface(`dev_setattr_all_sysfs',`
+    gen_require(`
+        attribute sysfs_types;
+    ')
+
+    allow $1 sysfs_types:dir { search_dir_perms setattr };
+    allow $1 sysfs_types:file setattr;
+    allow $1 sysfs_types:lnk_file { read_lnk_file_perms setattr };
+')
+
 ########################################
 ## <summary>
 ##	Read and write the TPM device.

diff --git a/policy/modules/system/systemd.te b/policy/modules/system/systemd.te
index 4d906e5c..7624d258 100644
--- a/policy/modules/system/systemd.te
+++ b/policy/modules/system/systemd.te
@@ -1112,6 +1112,7 @@ dev_manage_all_dev_nodes(systemd_tmpfiles_t)
 dev_read_urand(systemd_tmpfiles_t)
 dev_relabel_all_sysfs(systemd_tmpfiles_t)
 dev_read_urand(systemd_tmpfiles_t)
+dev_setattr_all_sysfs(systemd_tmpfiles_t)
 dev_manage_all_dev_nodes(systemd_tmpfiles_t)
 
 files_create_lock_dirs(systemd_tmpfiles_t)