src/basic/uid-alloc-range.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <stdbool.h>
   5 #include <sys/types.h>
   6
   7 bool uid_is_system(uid_t uid);
   8 bool gid_is_system(gid_t gid);
   9
  10 static inline bool uid_is_dynamic(uid_t uid) {
  11         return DYNAMIC_UID_MIN <= uid && uid <= DYNAMIC_UID_MAX;
  12 }
  13
  14 static inline bool gid_is_dynamic(gid_t gid) {
  15         return uid_is_dynamic((uid_t) gid);
  16 }
  17
  18 static inline bool uid_is_container(uid_t uid) {
  19         return CONTAINER_UID_BASE_MIN <= uid && uid <= CONTAINER_UID_BASE_MAX;
  20 }
  21
  22 static inline bool gid_is_container(gid_t gid) {
  23         return uid_is_container((uid_t) gid);
  24 }
  25
  26 typedef struct UGIDAllocationRange {
  27         uid_t system_alloc_uid_min;
  28         uid_t system_uid_max;
  29         gid_t system_alloc_gid_min;
  30         gid_t system_gid_max;
  31 } UGIDAllocationRange;
  32
  33 int read_login_defs(UGIDAllocationRange *ret_defs, const char *path, const char *root);
  34 const UGIDAllocationRange *acquire_ugid_allocation_range(void);
  35
  36 bool uid_for_system_journal(uid_t uid);