path: root/security/selinux/ss/services.c
diff options
authorStephen Smalley <sds@tycho.nsa.gov>2017-05-18 16:58:31 -0400
committerPaul Moore <paul@paul-moore.com>2017-05-23 10:23:50 -0400
commit4dc2fce342f8e5b165e2eda29a39446bb07b2457 (patch)
tree29e9f11e0be92036b11c47c7cb75d38752e9ebba /security/selinux/ss/services.c
parentselinux: do not check open permission on sockets (diff)
selinux: log policy capability state when a policy is loaded
Log the state of SELinux policy capabilities when a policy is loaded. For each policy capability known to the kernel, log the policy capability name and the value set in the policy. For policy capabilities that are set in the loaded policy but unknown to the kernel, log the policy capability index, since this is the only information presently available in the policy. Sample output with a policy created with a new capability defined that is not known to the kernel: SELinux: policy capability network_peer_controls=1 SELinux: policy capability open_perms=1 SELinux: policy capability extended_socket_class=1 SELinux: policy capability always_check_network=0 SELinux: policy capability cgroup_seclabel=0 SELinux: unknown policy capability 5 Resolves: https://github.com/SELinuxProject/selinux-kernel/issues/32 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/selinux/ss/services.c')
1 files changed, 23 insertions, 0 deletions
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 60d9b0252321..2dccba4851f8 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -70,6 +70,15 @@
#include "ebitmap.h"
#include "audit.h"
+/* Policy capability names */
+char *selinux_policycap_names[__POLICYDB_CAPABILITY_MAX] = {
+ "network_peer_controls",
+ "open_perms",
+ "extended_socket_class",
+ "always_check_network",
+ "cgroup_seclabel"
int selinux_policycap_netpeer;
int selinux_policycap_openperm;
int selinux_policycap_extsockclass;
@@ -1986,6 +1995,9 @@ bad:
static void security_load_policycaps(void)
+ unsigned int i;
+ struct ebitmap_node *node;
selinux_policycap_netpeer = ebitmap_get_bit(&policydb.policycaps,
selinux_policycap_openperm = ebitmap_get_bit(&policydb.policycaps,
@@ -1997,6 +2009,17 @@ static void security_load_policycaps(void)
selinux_policycap_cgroupseclabel =
+ for (i = 0; i < ARRAY_SIZE(selinux_policycap_names); i++)
+ pr_info("SELinux: policy capability %s=%d\n",
+ selinux_policycap_names[i],
+ ebitmap_get_bit(&policydb.policycaps, i));
+ ebitmap_for_each_positive_bit(&policydb.policycaps, node, i) {
+ if (i >= ARRAY_SIZE(selinux_policycap_names))
+ pr_info("SELinux: unknown policy capability %u\n",
+ i);
+ }
static int security_preserve_bools(struct policydb *p);