along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <assert.h>
-#include <string.h>
-#include <unistd.h>
#include <errno.h>
-#include <stdlib.h>
#include <stdio.h>
-#include <ctype.h>
#include "macro.h"
#include "audit.h"
#include "util.h"
-#include "log.h"
#include "fileio.h"
-#include "virt.h"
int audit_session_from_pid(pid_t pid, uint32_t *id) {
_cleanup_free_ char *s = NULL;
assert(id);
- /* Audit doesn't support containers right now */
- if (detect_container(NULL) > 0)
- return -ENOTSUP;
-
p = procfs_file_alloca(pid, "sessionid");
r = read_one_line_file(p, &s);
assert(uid);
- /* Audit doesn't support containers right now */
- if (detect_container(NULL) > 0)
- return -ENOTSUP;
-
p = procfs_file_alloca(pid, "loginuid");
r = read_one_line_file(p, &s);
if (r < 0)
return r;
- if (u == (uid_t) -1)
- return -ENXIO;
-
*uid = (uid_t) u;
return 0;
}
+
+bool use_audit(void) {
+ static int cached_use = -1;
+
+ if (cached_use < 0) {
+ int fd;
+
+ fd = socket(AF_NETLINK, SOCK_RAW|SOCK_CLOEXEC|SOCK_NONBLOCK, NETLINK_AUDIT);
+ if (fd < 0)
+ cached_use = errno != EAFNOSUPPORT && errno != EPROTONOSUPPORT;
+ else {
+ cached_use = true;
+ safe_close(fd);
+ }
+ }
+
+ return cached_use;
+}