along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "smack-util.h"
-
#include <unistd.h>
+#include <string.h>
+#include <sys/xattr.h>
-static int use_smack_cached = -1;
+#include "smack-util.h"
bool use_smack(void) {
+#ifdef HAVE_SMACK
+ static int use_smack_cached = -1;
if (use_smack_cached < 0)
- use_smack_cached = (access("/sys/fs/smackfs", F_OK) >= 0);
+ use_smack_cached = access("/sys/fs/smackfs/", F_OK) >= 0;
return use_smack_cached;
+#else
+ return false;
+#endif
+
+}
+
+int smack_label_path(const char *path, const char *label) {
+#ifdef HAVE_SMACK
+ if (!use_smack())
+ return 0;
+
+ if (label)
+ return setxattr(path, "security.SMACK64", label, strlen(label), 0);
+ else
+ return lremovexattr(path, "security.SMACK64");
+#else
+ return 0;
+#endif
+}
+
+int smack_label_fd(int fd, const char *label) {
+#ifdef HAVE_SMACK
+ if (!use_smack())
+ return 0;
+
+ return fsetxattr(fd, "security.SMACK64", label, strlen(label), 0);
+#else
+ return 0;
+#endif
+}
+
+int smack_label_ip_out_fd(int fd, const char *label) {
+#ifdef HAVE_SMACK
+ if (!use_smack())
+ return 0;
+
+ return fsetxattr(fd, "security.SMACK64IPOUT", label, strlen(label), 0);
+#else
+ return 0;
+#endif
+}
+
+int smack_label_ip_in_fd(int fd, const char *label) {
+#ifdef HAVE_SMACK
+ if (!use_smack())
+ return 0;
+
+ return fsetxattr(fd, "security.SMACK64IPIN", label, strlen(label), 0);
+#else
+ return 0;
+#endif
}