Support semanage permissive mode

The semanage application supports a "semanage permissive" feature, allowing certain domains to be marked for running permissive (rather than the entire system).

To support this feature, we introduce a semanage_var_lib_t type for the location where semanage will keep its permissive_<domain>.* files, and allow semanage_t to work with fifo_files (needed for the command to work).

Signed-off-by Sven Vermeulen <[email protected]>

---
 policy/modules/system/selinuxutil.fc |    5 +++++
 policy/modules/system/selinuxutil.te |    7 +++++++
 2 files changed, 12 insertions(+), 0 deletions(-)

policy/modules/system/selinuxutil.fc +5 -0

index 2cc4bda..83848fc 100644
@@ -43,6 +43,11 @@
 /usr/sbin/semodule		--	gen_context(system_u:object_r:semanage_exec_t,s0)
 
 #
+# /var/lib
+#
+/var/lib/selinux(/.*)?			gen_context(system_u:object_r:semanage_var_lib_t,s0)
+
+#
 # /var/run
 #
 /var/run/restorecond\.pid	--	gen_context(system_u:object_r:restorecond_var_run_t,s0)

policy/modules/system/selinuxutil.te +4 -0

index 3ac9e80..d842562 100644
@@ -103,6 +103,9 @@ files_tmp_file(semanage_tmp_t)
 type semanage_trans_lock_t;
 files_type(semanage_trans_lock_t)
 
+type semanage_var_lib_t;
+files_type(semanage_var_lib_t)
+
 type setfiles_t alias restorecon_t, can_relabelto_binary_policy;
 type setfiles_exec_t alias restorecon_exec_t;
 init_system_domain(setfiles_t, setfiles_exec_t)

@@ -430,6 +433,7 @@ allow semanage_t self:capability { dac_override audit_write };
 allow semanage_t self:unix_stream_socket create_stream_socket_perms;
 allow semanage_t self:unix_dgram_socket create_socket_perms;
 allow semanage_t self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay };
+allow semanage_t self:fifo_file rw_fifo_file_perms;
 
 allow semanage_t policy_config_t:file rw_file_perms;