src/home/homed-manager.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <openssl/evp.h>
   5
   6 #include "homed-forward.h"
   7 #include "user-record.h"
   8
   9 /* The LUKS free disk space rebalancing logic goes through this state machine */
  10 typedef enum RebalanceState {
  11         REBALANCE_OFF,       /* No rebalancing enabled */
  12         REBALANCE_IDLE,      /* Rebalancing enabled, but currently nothing scheduled */
  13         REBALANCE_WAITING,   /* Rebalancing has been requested for a later point in time */
  14         REBALANCE_PENDING,   /* Rebalancing has been requested and will be executed ASAP */
  15         REBALANCE_SHRINKING, /* Rebalancing ongoing, and we are running all shrinking operations */
  16         REBALANCE_GROWING,   /* Rebalancing ongoing, and we are running all growing operations */
  17         _REBALANCE_STATE_MAX,
  18         _REBALANCE_STATE_INVALID = -1,
  19 } RebalanceState;
  20
  21 typedef struct Manager {
  22         sd_event *event;
  23         sd_bus *bus;
  24
  25         Hashmap *polkit_registry;
  26
  27         Hashmap *homes_by_uid;
  28         Hashmap *homes_by_name;
  29         Hashmap *homes_by_worker_pid;
  30         Hashmap *homes_by_sysfs;
  31
  32         bool scan_slash_home;
  33         UserStorage default_storage;
  34         char *default_file_system_type;
  35
  36         sd_event_source *inotify_event_source;
  37
  38         char *notify_socket_path;
  39
  40         sd_device_monitor *device_monitor;
  41
  42         sd_event_source *deferred_rescan_event_source;
  43         sd_event_source *deferred_gc_event_source;
  44         sd_event_source *deferred_auto_login_event_source;
  45
  46         sd_event_source *rebalance_event_source;
  47
  48         Home *gc_focus;
  49
  50         sd_varlink_server *varlink_server;
  51         char *userdb_service;
  52
  53         EVP_PKEY *private_key; /* actually a pair of private and public key */
  54         Hashmap *public_keys; /* key name [char*] → public key [EVP_PKEY*] */
  55
  56         RebalanceState rebalance_state;
  57         usec_t rebalance_interval_usec;
  58
  59         /* In order to allow synchronous rebalance requests via bus calls we maintain two pools of bus
  60          * messages: 'rebalance_pending_methods' are the method calls we are currently operating on and
  61          * running a rebalancing operation for. 'rebalance_queued_method_calls' are the method calls that
  62          * have been queued since then and that we'll operate on once we complete the current run. */
  63         Set *rebalance_pending_method_calls, *rebalance_queued_method_calls;
  64 } Manager;
  65
  66 int manager_new(Manager **ret);
  67 Manager* manager_free(Manager *m);
  68 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
  69
  70 int manager_startup(Manager *m);
  71
  72 int manager_augment_record_with_uid(Manager *m, UserRecord *hr);
  73
  74 int manager_enqueue_rescan(Manager *m);
  75 int manager_enqueue_gc(Manager *m, Home *focus);
  76
  77 int manager_schedule_rebalance(Manager *m, bool immediately);
  78 int manager_reschedule_rebalance(Manager *m);
  79
  80 int manager_verify_user_record(Manager *m, UserRecord *hr);
  81
  82 int manager_adopt_home(Manager *m, const char *path);
  83
  84 int manager_acquire_key_pair(Manager *m);
  85 int manager_sign_user_record(Manager *m, UserRecord *u, UserRecord **ret, sd_bus_error *error);
  86
  87 int bus_manager_emit_auto_login_changed(Manager *m);
  88
  89 int manager_get_home_by_name(Manager *m, const char *user_name, Home **ret);
  90
  91 extern const struct hash_ops public_key_hash_ops;