src/home/home-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <stdbool.h>
   5
   6 #include "sd-bus.h"
   7
   8 #include "time-util.h"
   9 #include "user-record.h"
  10
  11 /* See https://systemd.io/UIDS-GIDS for details how this range fits into the rest of the world */
  12 #define HOME_UID_MIN 60001
  13 #define HOME_UID_MAX 60513
  14
  15 /* Put some limits on disk sizes: not less than 5M, not more than 5T */
  16 #define USER_DISK_SIZE_MIN (UINT64_C(5)*1024*1024)
  17 #define USER_DISK_SIZE_MAX (UINT64_C(5)*1024*1024*1024*1024)
  18
  19 /* The default disk size to use when nothing else is specified, relative to free disk space. We calculate
  20  * this from the default rebalancing weights, so that what we create initially doesn't immediately require
  21  * rebalancing. */
  22 #define USER_DISK_SIZE_DEFAULT_PERCENT ((unsigned) ((100 * REBALANCE_WEIGHT_DEFAULT) / (REBALANCE_WEIGHT_DEFAULT + REBALANCE_WEIGHT_BACKING)))
  23
  24 /* This should be 83% right now, i.e. 100 of (100 + 20). Let's protect us against accidental changes. */
  25 assert_cc(USER_DISK_SIZE_DEFAULT_PERCENT == 83U);
  26
  27 bool suitable_user_name(const char *name);
  28 int suitable_realm(const char *realm);
  29 int suitable_image_path(const char *path);
  30
  31 bool supported_fstype(const char *fstype);
  32
  33 int split_user_name_realm(const char *t, char **ret_user_name, char **ret_realm);
  34
  35 int bus_message_append_secret(sd_bus_message *m, UserRecord *secret);
  36
  37 /* Many of our operations might be slow due to crypto, fsck, recursive chown() and so on. For these
  38  * operations permit a *very* long timeout */
  39 #define HOME_SLOW_BUS_CALL_TIMEOUT_USEC (2*USEC_PER_MINUTE)
  40
  41 const char *home_record_dir(void);