-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
return use_selinux_ind;
}
-static int label_get_file_label_from_path(
- const char *label,
- const char *path,
- const char *class,
- security_context_t *fcon) {
-
- security_context_t dir_con = NULL;
- security_class_t sclass;
- int r = 0;
-
- r = getfilecon(path, &dir_con);
- if (r >= 0) {
- r = -1;
- errno = EINVAL;
-
- if ((sclass = string_to_security_class(class)) != 0)
- r = security_compute_create((security_context_t) label, dir_con, sclass, fcon);
- }
- if (r < 0)
- r = -errno;
-
- freecon(dir_con);
- return r;
-}
-
#endif
int label_init(void) {
if (!use_selinux())
return 0;
+ if (label_hnd)
+ return 0;
+
label_hnd = selabel_open(SELABEL_CTX_FILE, NULL, 0);
if (!label_hnd) {
log_full(security_getenforce() == 1 ? LOG_ERR : LOG_DEBUG,
"Failed to initialize SELinux context: %m");
- r = (security_getenforce() == 1) ? -errno : 0;
+ r = security_getenforce() == 1 ? -errno : 0;
}
#endif
if (r == 0) {
r = selabel_lookup_raw(label_hnd, &fcon, path, st.st_mode);
+ /* If there's no label to set, then exit without warning */
+ if (r < 0 && errno == ENOENT)
+ return 0;
+
if (r == 0) {
r = setfilecon(path, fcon);
freecon(fcon);
+
+ /* If the FS doesn't support labels, then exit without warning */
+ if (r < 0 && errno == ENOTSUP)
+ return 0;
}
}
+
if (r < 0) {
log_full(security_getenforce() == 1 ? LOG_ERR : LOG_DEBUG,
"Unable to fix label of %s: %m", path);
- r = (security_getenforce() == 1) ? -errno : 0;
+ r = security_getenforce() == 1 ? -errno : 0;
}
#endif
return r;
}
-int label_fifofile_set(const char *label, const char *path) {
+int label_fifofile_set(const char *path) {
int r = 0;
#ifdef HAVE_SELINUX
security_context_t filecon = NULL;
- if (!use_selinux() || !label)
+ if (!use_selinux() || !label_hnd)
return 0;
- if (((r = label_get_file_label_from_path(label, path, "fifo_file", &filecon)) == 0)) {
+ if ((r = selabel_lookup_raw(label_hnd, &filecon, path, S_IFIFO)) == 0) {
if ((r = setfscreatecon(filecon)) < 0) {
- log_error("Failed to set SELinux file context (%s) on %s: %m", label, path);
+ log_error("Failed to set SELinux file context on %s: %m", path);
+ r = -errno;
+ }
+
+ freecon(filecon);
+ }
+
+ if (r < 0 && security_getenforce() == 0)
+ r = 0;
+#endif
+
+ return r;
+}
+
+int label_symlinkfile_set(const char *path) {
+ int r = 0;
+
+#ifdef HAVE_SELINUX
+ security_context_t filecon = NULL;
+
+ if (!use_selinux() || !label_hnd)
+ return 0;
+
+ if ((r = selabel_lookup_raw(label_hnd, &filecon, path, S_IFLNK)) == 0) {
+ if ((r = setfscreatecon(filecon)) < 0) {
+ log_error("Failed to set SELinux file context on %s: %m", path);
r = -errno;
}
if (use_selinux() && label_hnd) {
- if (path[0] == '/')
+ if (path_is_absolute(path))
r = selabel_lookup_raw(label_hnd, &fcon, path, mode);
else {
- char *cwd = NULL, *newpath = NULL;
-
- cwd = get_current_dir_name();
+ char *newpath = NULL;
- if (cwd || asprintf(&newpath, "%s/%s", cwd, path) < 0) {
- free(cwd);
- return -errno;
- }
+ if (!(newpath = path_make_absolute_cwd(path)))
+ return -ENOMEM;
r = selabel_lookup_raw(label_hnd, &fcon, newpath, mode);
- free(cwd);
free(newpath);
}