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 "sd-bus.h"
   7 #include "sd-device.h"
   8 #include "sd-event.h"
   9
  10 typedef struct Manager Manager;
  11
  12 #include "hashmap.h"
  13 #include "homed-home.h"
  14 #include "varlink.h"
  15
  16 /* The LUKS free disk space rebalancing logic goes through this state machine */
  17 typedef enum RebalanceState {
  18         REBALANCE_OFF,       /* No rebalancing enabled */
  19         REBALANCE_IDLE,      /* Rebalancing enabled, but currently nothing scheduled */
  20         REBALANCE_WAITING,   /* Rebalancing has been requested for a later point in time */
  21         REBALANCE_PENDING,   /* Rebalancing has been requested and will be executed ASAP */
  22         REBALANCE_SHRINKING, /* Rebalancing ongoing, and we are running all shrinking operations */
  23         REBALANCE_GROWING,   /* Rebalancing ongoign, and we are running all growing operations */
  24         _REBALANCE_STATE_MAX,
  25         _REBALANCE_STATE_INVALID = -1,
  26 } RebalanceState;
  27
  28 struct Manager {
  29         sd_event *event;
  30         sd_bus *bus;
  31
  32         Hashmap *polkit_registry;
  33
  34         Hashmap *homes_by_uid;
  35         Hashmap *homes_by_name;
  36         Hashmap *homes_by_worker_pid;
  37         Hashmap *homes_by_sysfs;
  38
  39         bool scan_slash_home;
  40         UserStorage default_storage;
  41         char *default_file_system_type;
  42
  43         sd_event_source *inotify_event_source;
  44
  45         /* An event source we receive sd_notify() messages from our worker from */
  46         sd_event_source *notify_socket_event_source;
  47
  48         sd_device_monitor *device_monitor;
  49
  50         sd_event_source *deferred_rescan_event_source;
  51         sd_event_source *deferred_gc_event_source;
  52         sd_event_source *deferred_auto_login_event_source;
  53
  54         sd_event_source *rebalance_event_source;
  55
  56         Home *gc_focus;
  57
  58         VarlinkServer *varlink_server;
  59         char *userdb_service;
  60
  61         EVP_PKEY *private_key; /* actually a pair of private and public key */
  62         Hashmap *public_keys; /* key name [char*] → public key [EVP_PKEY*] */
  63
  64         RebalanceState rebalance_state;
  65         usec_t rebalance_interval_usec;
  66
  67         /* In order to allow synchronous rebalance requests via bus calls we maintain two pools of bus
  68          * messages: 'rebalance_pending_methods' are the method calls we are currently operating on and
  69          * running a rebalancing operation for. 'rebalance_queued_method_calls' are the method calls that
  70          * have been queued since then and that we'll operate on once we complete the current run. */
  71         Set *rebalance_pending_method_calls, *rebalance_queued_method_calls;
  72 };
  73
  74 int manager_new(Manager **ret);
  75 Manager* manager_free(Manager *m);
  76 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
  77
  78 int manager_startup(Manager *m);
  79
  80 int manager_augment_record_with_uid(Manager *m, UserRecord *hr);
  81
  82 int manager_enqueue_rescan(Manager *m);
  83 int manager_enqueue_gc(Manager *m, Home *focus);
  84
  85 int manager_schedule_rebalance(Manager *m, bool immediately);
  86 int manager_reschedule_rebalance(Manager *m);
  87
  88 int manager_verify_user_record(Manager *m, UserRecord *hr);
  89
  90 int manager_acquire_key_pair(Manager *m);
  91 int manager_sign_user_record(Manager *m, UserRecord *u, UserRecord **ret, sd_bus_error *error);
  92
  93 int bus_manager_emit_auto_login_changed(Manager *m);