+static int whitelist_major(const char *path, const char *name, char type, const char *acc) {
+ _cleanup_fclose_ FILE *f = NULL;
+ char line[LINE_MAX];
+ bool good = false;
+ int r;
+
+ assert(path);
+ assert(acc);
+ assert(type == 'b' || type == 'c');
+
+ f = fopen("/proc/devices", "re");
+ if (!f)
+ return log_warning_errno(errno, "Cannot open /proc/devices to resolve %s (%c): %m", name, type);
+
+ FOREACH_LINE(line, f, goto fail) {
+ char buf[2+DECIMAL_STR_MAX(unsigned)+3+4], *p, *w;
+ unsigned maj;
+
+ truncate_nl(line);
+
+ if (type == 'c' && streq(line, "Character devices:")) {
+ good = true;
+ continue;
+ }
+
+ if (type == 'b' && streq(line, "Block devices:")) {
+ good = true;
+ continue;
+ }
+
+ if (isempty(line)) {
+ good = false;
+ continue;
+ }
+
+ if (!good)
+ continue;
+
+ p = strstrip(line);
+
+ w = strpbrk(p, WHITESPACE);
+ if (!w)
+ continue;
+ *w = 0;
+
+ r = safe_atou(p, &maj);
+ if (r < 0)
+ continue;
+ if (maj <= 0)
+ continue;
+
+ w++;
+ w += strspn(w, WHITESPACE);
+
+ if (fnmatch(name, w, 0) != 0)
+ continue;
+
+ sprintf(buf,
+ "%c %u:* %s",
+ type,
+ maj,
+ acc);
+
+ r = cg_set_attribute("devices", path, "devices.allow", buf);
+ if (r < 0)
+ log_full_errno(IN_SET(r, -ENOENT, -EROFS, -EINVAL) ? LOG_DEBUG : LOG_WARNING, r,
+ "Failed to set devices.allow on %s: %m", path);
+ }
+
+ return 0;
+
+fail:
+ log_warning_errno(errno, "Failed to read /proc/devices: %m");
+ return -errno;
+}
+
+void cgroup_context_apply(CGroupContext *c, CGroupControllerMask mask, const char *path, ManagerState state) {
+ bool is_root;