// SPDX-License-Identifier: GPL-2.0+ /* NetworkManager system settings service * * Søren Sandmann * Dan Williams * Tambet Ingo * * (C) Copyright 2007 - 2011 Red Hat, Inc. * (C) Copyright 2008 Novell, Inc. */ #include "nm-default.h" #include "nm-settings.h" #include #include #include #include #if HAVE_SELINUX #include #endif #include "nm-libnm-core-intern/nm-common-macros.h" #include "nm-glib-aux/nm-keyfile-aux.h" #include "nm-keyfile-internal.h" #include "nm-dbus-interface.h" #include "nm-connection.h" #include "nm-setting-8021x.h" #include "nm-setting-bluetooth.h" #include "nm-setting-cdma.h" #include "nm-setting-connection.h" #include "nm-setting-gsm.h" #include "nm-setting-ip4-config.h" #include "nm-setting-ip6-config.h" #include "nm-setting-olpc-mesh.h" #include "nm-setting-ppp.h" #include "nm-setting-pppoe.h" #include "nm-setting-serial.h" #include "nm-setting-vpn.h" #include "nm-setting-wired.h" #include "nm-setting-adsl.h" #include "nm-setting-wireless.h" #include "nm-setting-wireless-security.h" #include "nm-setting-proxy.h" #include "nm-setting-bond.h" #include "nm-utils.h" #include "nm-core-internal.h" #include "nm-std-aux/c-list-util.h" #include "nm-glib-aux/nm-c-list.h" #include "nm-dbus-object.h" #include "devices/nm-device-ethernet.h" #include "nm-settings-connection.h" #include "nm-settings-plugin.h" #include "nm-dbus-manager.h" #include "nm-auth-utils.h" #include "nm-auth-subject.h" #include "nm-session-monitor.h" #include "plugins/keyfile/nms-keyfile-plugin.h" #include "plugins/keyfile/nms-keyfile-storage.h" #include "nm-agent-manager.h" #include "nm-config.h" #include "nm-audit-manager.h" #include "NetworkManagerUtils.h" #include "nm-dispatcher.h" #include "nm-hostname-manager.h" /*****************************************************************************/ static NM_CACHED_QUARK_FCN ("default-wired-connection", _default_wired_connection_quark) /*****************************************************************************/ typedef struct _StorageData { CList sd_lst; NMSettingsStorage *storage; NMConnection *connection; bool prioritize:1; } StorageData; static StorageData * _storage_data_new_stale (NMSettingsStorage *storage, NMConnection *connection) { StorageData *sd; sd = g_slice_new (StorageData); sd->storage = g_object_ref (storage); sd->connection = nm_g_object_ref (connection); sd->prioritize = FALSE; return sd; } static void _storage_data_destroy (StorageData *sd) { c_list_unlink_stale (&sd->sd_lst); g_object_unref (sd->storage); nm_g_object_unref (sd->connection); g_slice_free (StorageData, sd); } static StorageData * _storage_data_find_in_lst (CList *head, NMSettingsStorage *storage) { StorageData *sd; nm_assert (head); nm_assert (NM_IS_SETTINGS_STORAGE (storage)); c_list_for_each_entry (sd, head, sd_lst) { if (sd->storage == storage) return sd; } return NULL; } static void nm_assert_storage_data_lst (CList *head) { #if NM_MORE_ASSERTS > 5 const char *uuid = NULL; StorageData *sd; CList *iter; nm_assert (head); if (c_list_is_empty (head)) return; c_list_for_each_entry (sd, head, sd_lst) { const char *u; nm_assert (NM_IS_SETTINGS_STORAGE (sd->storage)); nm_assert (!sd->connection || NM_IS_CONNECTION (sd->connection)); u = nm_settings_storage_get_uuid (sd->storage); if (!uuid) { uuid = u; nm_assert (nm_utils_is_uuid (uuid)); } else nm_assert (nm_streq0 (uuid, u)); } /* assert that all storages are unique. */ c_list_for_each_entry (sd, head, sd_lst) { for (iter = sd->sd_lst.next; iter != head; iter = iter->next) nm_assert (c_list_entry (iter, StorageData, sd_lst)->storage != sd->storage); } #endif } static gboolean _storage_data_is_alive (StorageData *sd) { /* If the storage tracks a connection, it is considered alive. * * Meta-data storages are special: they never track a connection. * We need to check them specially to know when to drop them. */ return sd->connection || nm_settings_storage_is_meta_data_alive (sd->storage); } /*****************************************************************************/ typedef struct { const char *uuid; NMSettingsConnection *sett_conn; NMSettingsStorage *storage; CList sd_lst_head; CList dirty_sd_lst_head; CList sce_dirty_lst; char _uuid_data[]; } SettConnEntry; static SettConnEntry * _sett_conn_entry_new (const char *uuid) { SettConnEntry *sett_conn_entry; gsize l_p_1; nm_assert (nm_utils_is_uuid (uuid)); l_p_1 = strlen (uuid) + 1; sett_conn_entry = g_malloc (sizeof (SettConnEntry) + l_p_1); sett_conn_entry->uuid = sett_conn_entry->_uuid_data; sett_conn_entry->sett_conn = NULL; sett_conn_entry->storage = NULL; c_list_init (&sett_conn_entry->sd_lst_head); c_list_init (&sett_conn_entry->dirty_sd_lst_head); c_list_init (&sett_conn_entry->sce_dirty_lst); memcpy (sett_conn_entry->_uuid_data, uuid, l_p_1); return sett_conn_entry; } static void _sett_conn_entry_free (SettConnEntry *sett_conn_entry) { c_list_unlink_stale (&sett_conn_entry->sce_dirty_lst); nm_c_list_free_all (&sett_conn_entry->sd_lst_head, StorageData, sd_lst, _storage_data_destroy); nm_c_list_free_all (&sett_conn_entry->dirty_sd_lst_head, StorageData, sd_lst, _storage_data_destroy); nm_g_object_unref (sett_conn_entry->sett_conn); nm_g_object_unref (sett_conn_entry->storage); g_free (sett_conn_entry); } static NMSettingsConnection * _sett_conn_entry_get_conn (SettConnEntry *sett_conn_entry) { return sett_conn_entry ? sett_conn_entry->sett_conn : NULL; } /** * _sett_conn_entry_storage_find_conflicting_storage: * @sett_conn_entry: the list of settings-storages for the given UUID. * @target_plugin: the settings plugin to check * @storage_check_including: (allow-none): optionally compare against this storage. * @plugins: the list of plugins sorted in descending priority. This determines * the priority and whether a storage conflicts. * * If we were to add the a storage to @target_plugin, then this function checks * whether there are already other storages that would hide the storage after we * add it. Those conflicting/hiding storages are a problem, because they have higher * priority, so we cannot add the storage. * * @storage_check_including is optional, and if given then it checks whether updating * the profile in this storage would result in confict. This is the check before * update-connection. If this parameter is omitted, then it's about what happens * when adding a new profile (add-connection). * * Returns: the conflicting storage or %NULL if there is none. */ static NMSettingsStorage * _sett_conn_entry_storage_find_conflicting_storage (SettConnEntry *sett_conn_entry, NMSettingsPlugin *target_plugin, NMSettingsStorage *storage_check_including, const GSList *plugins) { StorageData *sd; if (!sett_conn_entry) return NULL; if ( storage_check_including && nm_settings_storage_is_keyfile_run (storage_check_including)) { /* the storage we check against is in-memory. It always has highest * priority, so there can be no other conflicting storages. */ return NULL; } /* Finds the first (highest priority) storage that has a connection. * Note that due to tombstones (that have a high priority), the connection * may not actually be exposed. This is to find hidden/shadowed storages * that provide a connection. */ c_list_for_each_entry (sd, &sett_conn_entry->sd_lst_head, sd_lst) { nm_assert (NM_IS_SETTINGS_STORAGE (sd->storage)); if (!sd->connection) { /* We only consider storages with connection. In particular, * tombstones are not relevant, because we can delete them to * resolve the conflict. */ continue; } if (sd->storage == storage_check_including) { /* ok, the storage is the one we are about to check. All other * storages are lower priority, so there is no storage that hides * our storage_check_including. */ return NULL; } if (nm_settings_plugin_cmp_by_priority (nm_settings_storage_get_plugin (sd->storage), target_plugin, plugins) <= 0) { /* the plugin of the existing storage is less important than @target_plugin. * We have no conflicting/hiding storage. */ return NULL; } /* Found. If we would add the profile to @target_plugin, then it would be hidden * by existing_storage. */ return sd->storage; } return NULL; } static NMSettingsStorage * _sett_conn_entry_find_shadowed_storage (SettConnEntry *sett_conn_entry, const char *shadowed_storage_filename, NMSettingsStorage *blacklisted_storage) { StorageData *sd; if (!shadowed_storage_filename) return NULL; c_list_for_each_entry (sd, &sett_conn_entry->sd_lst_head, sd_lst) { nm_assert (NM_IS_SETTINGS_STORAGE (sd->storage)); if (!sd->connection) continue; if (blacklisted_storage == sd->storage) continue; if (!nm_streq0 (nm_settings_storage_get_filename_for_shadowed_storage (sd->storage), shadowed_storage_filename)) continue; return sd->storage; } return NULL; } /*****************************************************************************/ NM_GOBJECT_PROPERTIES_DEFINE (NMSettings, PROP_UNMANAGED_SPECS, PROP_HOSTNAME, PROP_CAN_MODIFY, PROP_CONNECTIONS, PROP_STARTUP_COMPLETE, ); enum { CONNECTION_ADDED, CONNECTION_UPDATED, CONNECTION_REMOVED, CONNECTION_FLAGS_CHANGED, LAST_SIGNAL }; static guint signals[LAST_SIGNAL] = { 0 }; typedef struct { NMAgentManager *agent_mgr; NMConfig *config; NMPlatform *platform; NMHostnameManager *hostname_manager; NMSessionMonitor *session_monitor; CList auth_lst_head; NMSKeyfilePlugin *keyfile_plugin; GSList *plugins; NMKeyFileDB *kf_db_timestamps; NMKeyFileDB *kf_db_seen_bssids; GHashTable *sce_idx; CList sce_dirty_lst_head; CList connections_lst_head; NMSettingsConnection **connections_cached_list; GSList *unmanaged_specs; GSList *unrecognized_specs; GHashTable *startup_complete_idx; NMSettingsConnection *startup_complete_blocked_by; gulong startup_complete_platform_change_id; guint startup_complete_timeout_id; guint connections_len; guint connections_generation; guint kf_db_flush_idle_id_timestamps; guint kf_db_flush_idle_id_seen_bssids; bool started:1; } NMSettingsPrivate; struct _NMSettings { NMDBusObject parent; NMSettingsPrivate _priv; }; struct _NMSettingsClass { NMDBusObjectClass parent; }; G_DEFINE_TYPE (NMSettings, nm_settings, NM_TYPE_DBUS_OBJECT); #define NM_SETTINGS_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMSettings, NM_IS_SETTINGS) /*****************************************************************************/ /* FIXME: a lot of logging lines are directly connected to a profile. Set the @con_uuid * argument for structured logging. */ #define _NMLOG_DOMAIN LOGD_SETTINGS #define _NMLOG(level, ...) __NMLOG_DEFAULT (level, _NMLOG_DOMAIN, "settings", __VA_ARGS__) /*****************************************************************************/ static const NMDBusInterfaceInfoExtended interface_info_settings; static const GDBusSignalInfo signal_info_new_connection; static const GDBusSignalInfo signal_info_connection_removed; static void default_wired_clear_tag (NMSettings *self, NMDevice *device, NMSettingsConnection *sett_conn, gboolean add_to_no_auto_default); static void _clear_connections_cached_list (NMSettingsPrivate *priv); static void _startup_complete_check (NMSettings *self, gint64 now_us); /*****************************************************************************/ static void _emit_connection_added (NMSettings *self, NMSettingsConnection *sett_conn) { g_signal_emit (self, signals[CONNECTION_ADDED], 0, sett_conn); } static void _emit_connection_updated (NMSettings *self, NMSettingsConnection *sett_conn, NMSettingsConnectionUpdateReason update_reason) { _nm_settings_connection_emit_signal_updated_internal (sett_conn, update_reason); g_signal_emit (self, signals[CONNECTION_UPDATED], 0, sett_conn, (guint) update_reason); } static void _emit_connection_removed (NMSettings *self, NMSettingsConnection *sett_conn) { g_signal_emit (self, signals[CONNECTION_REMOVED], 0, sett_conn); } static void _emit_connection_flags_changed (NMSettings *self, NMSettingsConnection *sett_conn) { g_signal_emit (self, signals[CONNECTION_FLAGS_CHANGED], 0, sett_conn); } /*****************************************************************************/ typedef struct { NMSettingsConnection *sett_conn; gint64 start_at; gint64 timeout; } StartupCompleteData; static void _startup_complete_data_destroy (StartupCompleteData *scd) { g_object_unref (scd->sett_conn); g_slice_free (StartupCompleteData, scd); } static gboolean _startup_complete_check_is_ready (NMPlatform *platform, NMSettingsConnection *sett_conn) { const NMPlatformLink *plink; const char *ifname; /* FIXME: instead of just looking for the interface name, it would be better * to wait for a device that is compatible with the profile. */ ifname = nm_connection_get_interface_name (nm_settings_connection_get_connection (sett_conn)); if (!ifname) return TRUE; plink = nm_platform_link_get_by_ifname (platform, ifname); return plink && plink->initialized; } static gboolean _startup_complete_timeout_cb (gpointer user_data) { NMSettings *self = user_data; NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); priv->startup_complete_timeout_id = 0; _startup_complete_check (self, 0); return G_SOURCE_REMOVE; } static void _startup_complete_platform_change_cb (NMPlatform *platform, int obj_type_i, int ifindex, const NMPlatformLink *link, int change_type_i, NMSettings *self) { const NMPlatformSignalChangeType change_type = change_type_i; NMSettingsPrivate *priv; const char *ifname; if (change_type == NM_PLATFORM_SIGNAL_REMOVED) return; if (!link->initialized) return; priv = NM_SETTINGS_GET_PRIVATE (self); ifname = nm_connection_get_interface_name (nm_settings_connection_get_connection (priv->startup_complete_blocked_by)); if ( ifname && !nm_streq (ifname, link->name)) return; nm_assert (priv->startup_complete_timeout_id > 0); nm_clear_g_source (&priv->startup_complete_timeout_id); priv->startup_complete_timeout_id = g_idle_add (_startup_complete_timeout_cb, self); } static void _startup_complete_check (NMSettings *self, gint64 now_us) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gint64 next_expiry; StartupCompleteData *scd; NMSettingsConnection *next_sett_conn = NULL; GHashTableIter iter; if (!priv->started) { /* before we are started, we don't setup the timers... */ return; } if (!priv->startup_complete_idx) goto ready; if (!now_us) now_us = nm_utils_get_monotonic_timestamp_us (); next_expiry = 0; g_hash_table_iter_init (&iter, priv->startup_complete_idx); while (g_hash_table_iter_next (&iter, (gpointer *) &scd, NULL)) { gint64 expiry; if (scd->start_at == 0) { /* once ready, the decision is remembered and there is nothing * left to check. */ continue; } expiry = scd->start_at + scd->timeout; if (expiry <= now_us) { scd->start_at = 0; continue; } if (_startup_complete_check_is_ready (priv->platform, scd->sett_conn)) { scd->start_at = 0; continue; } next_expiry = expiry; next_sett_conn = scd->sett_conn; /* we found one timeout for which to wait. that's good enough. */ break; } nm_clear_g_source (&priv->startup_complete_timeout_id); nm_g_object_ref_set (&priv->startup_complete_blocked_by, next_sett_conn); if (next_expiry > 0) { nm_assert (priv->startup_complete_blocked_by); if (priv->startup_complete_platform_change_id == 0) { priv->startup_complete_platform_change_id = g_signal_connect (priv->platform, NM_PLATFORM_SIGNAL_LINK_CHANGED, G_CALLBACK (_startup_complete_platform_change_cb), self); } priv->startup_complete_timeout_id = g_timeout_add (NM_MIN (3600u*1000u, (next_expiry - now_us) / 1000u), _startup_complete_timeout_cb, self); _LOGT ("startup-complete: wait for device \"%s\" due to connection %s (%s)", nm_connection_get_interface_name (nm_settings_connection_get_connection (priv->startup_complete_blocked_by)), nm_settings_connection_get_uuid (priv->startup_complete_blocked_by), nm_settings_connection_get_id (priv->startup_complete_blocked_by)); return; } nm_clear_pointer (&priv->startup_complete_idx, g_hash_table_destroy); nm_clear_g_signal_handler (priv->platform, &priv->startup_complete_platform_change_id); ready: _LOGT ("startup-complete: ready, no profiles to wait for"); nm_assert (priv->started); nm_assert (!priv->startup_complete_blocked_by); nm_assert (!priv->startup_complete_idx); nm_assert (priv->startup_complete_timeout_id == 0); nm_assert (priv->startup_complete_platform_change_id == 0); _notify (self, PROP_STARTUP_COMPLETE); } static void _startup_complete_notify_connection (NMSettings *self, NMSettingsConnection *sett_conn, gboolean forget) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gint64 timeout; gint64 now_us = 0; nm_assert ( !priv->started || priv->startup_complete_idx); timeout = 0; if (!forget) { NMSettingConnection *s_con; gint32 v; s_con = nm_connection_get_setting_connection (nm_settings_connection_get_connection (sett_conn)); v = nm_setting_connection_get_wait_device_timeout (s_con); if (v > 0) { nm_assert (nm_setting_connection_get_interface_name (s_con)); timeout = ((gint64) v) * 1000; } } if (timeout == 0) { if ( !priv->startup_complete_idx || !g_hash_table_remove (priv->startup_complete_idx, &sett_conn)) return; } else { StartupCompleteData *scd; if (!priv->startup_complete_idx) { nm_assert (!priv->started); priv->startup_complete_idx = g_hash_table_new_full (nm_pdirect_hash, nm_pdirect_equal, NULL, (GDestroyNotify) _startup_complete_data_destroy); scd = NULL; } else scd = g_hash_table_lookup (priv->startup_complete_idx, &sett_conn); if (!scd) { now_us = nm_utils_get_monotonic_timestamp_us (); scd = g_slice_new (StartupCompleteData); *scd = (StartupCompleteData) { .sett_conn = g_object_ref (sett_conn), .start_at = now_us, .timeout = timeout, }; g_hash_table_add (priv->startup_complete_idx, scd); } else { if (scd->start_at == 0) { /* the entry already is ready and no longer relevant. Ignore it. */ return; } scd->timeout = timeout; } } _startup_complete_check (self, now_us); } const char * nm_settings_get_startup_complete_blocked_reason (NMSettings *self) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); const char *uuid = NULL; if (priv->started) { if (!priv->startup_complete_idx) return NULL; if (priv->startup_complete_blocked_by) uuid = nm_settings_connection_get_uuid (priv->startup_complete_blocked_by); } return uuid ?: "unknown"; } /*****************************************************************************/ const GSList * nm_settings_get_unmanaged_specs (NMSettings *self) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); return priv->unmanaged_specs; } static gboolean update_specs (NMSettings *self, GSList **specs_ptr, GSList * (*get_specs_func) (NMSettingsPlugin *)) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); GSList *new = NULL; GSList *iter; for (iter = priv->plugins; iter; iter = g_slist_next (iter)) { GSList *specs; specs = get_specs_func (iter->data); while (specs) { GSList *s = specs; specs = g_slist_remove_link (specs, s); if (nm_utils_g_slist_find_str (new, s->data)) { g_free (s->data); g_slist_free_1 (s); continue; } s->next = new; new = s; } } if (nm_utils_g_slist_strlist_cmp (new, *specs_ptr) == 0) { g_slist_free_full (new, g_free); return FALSE; } g_slist_free_full (*specs_ptr, g_free); *specs_ptr = new; return TRUE; } static void _plugin_unmanaged_specs_changed (NMSettingsPlugin *config, gpointer user_data) { NMSettings *self = NM_SETTINGS (user_data); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); if (update_specs (self, &priv->unmanaged_specs, nm_settings_plugin_get_unmanaged_specs)) _notify (self, PROP_UNMANAGED_SPECS); } static void _plugin_unrecognized_specs_changed (NMSettingsPlugin *config, gpointer user_data) { NMSettings *self = NM_SETTINGS (user_data); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); update_specs (self, &priv->unrecognized_specs, nm_settings_plugin_get_unrecognized_specs); } /*****************************************************************************/ static void connection_flags_changed (NMSettingsConnection *sett_conn, gpointer user_data) { _emit_connection_flags_changed (NM_SETTINGS (user_data), sett_conn); } /*****************************************************************************/ static SettConnEntry * _sett_conn_entries_get (NMSettings *self, const char *uuid) { nm_assert (uuid); return g_hash_table_lookup (NM_SETTINGS_GET_PRIVATE (self)->sce_idx, &uuid); } static SettConnEntry * _sett_conn_entries_create_and_add (NMSettings *self, const char *uuid) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); SettConnEntry *sett_conn_entry; sett_conn_entry = _sett_conn_entry_new (uuid); if (!g_hash_table_add (priv->sce_idx, sett_conn_entry)) nm_assert_not_reached (); else if (g_hash_table_size (priv->sce_idx) == 1) g_object_ref (self); return sett_conn_entry; } static void _sett_conn_entries_remove_and_destroy (NMSettings *self, SettConnEntry *sett_conn_entry) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); if (!g_hash_table_remove (priv->sce_idx, sett_conn_entry)) nm_assert_not_reached (); else if (g_hash_table_size (priv->sce_idx) == 0) g_object_unref (self); } /*****************************************************************************/ static int _sett_conn_entry_sds_update_cmp_ascending (const StorageData *sd_a, const StorageData *sd_b, const GSList *plugins) { const NMSettingsMetaData *meta_data_a; const NMSettingsMetaData *meta_data_b; bool is_keyfile_run_a; bool is_keyfile_run_b; /* Sort storages by priority. More important storages are sorted * higher (ascending sort). For example, if "sd_a" is more important than * "sd_b" (sd_a>sd_b), a positive integer is returned. */ meta_data_a = nm_settings_storage_is_meta_data (sd_a->storage); meta_data_b = nm_settings_storage_is_meta_data (sd_b->storage); /* runtime storages (both connections and meta-data) are always more * important. */ is_keyfile_run_a = nm_settings_storage_is_keyfile_run (sd_a->storage); is_keyfile_run_b = nm_settings_storage_is_keyfile_run (sd_b->storage); if (is_keyfile_run_a != is_keyfile_run_b) { if ( !meta_data_a && !meta_data_b) { /* Ok, both are non-meta-data providing actual profiles. But one is in /run and one is in * another storage. In this case we first honor whether one of the storages is explicitly * prioritized. The prioritize flag is an in-memory hack to overwrite relative priorities * contrary to what exists on-disk. * * This is done because when we use explicit D-Bus API (like update-connection) * to update a profile, then we really want to prioritize the candidate * despite having multiple other profiles. * * The example is if you have the same UUID twice in /run (one of them shadowed). * If you move it to disk, then one of the profiles gets deleted and re-created * on disk, but that on-disk profile must win against the remainging profile in * /run. At least until the next reload/restart. */ NM_CMP_FIELD_UNSAFE (sd_a, sd_b, prioritize); } /* in-memory has higher priority. That is regardless of whether any of * them is meta-data/tombstone or a profile. * * That works, because if any of them are tombstones/metadata, then we are in full * control. There can by only one meta-data file, which is fully owned (and accordingly * created/deleted) by NetworkManager. * * The only case where this might not be right is if we have profiles * in /run that are shadowed. When we move such a profile to disk, then * a conflict might arise. That is handled by "prioritize" above! */ NM_CMP_DIRECT (is_keyfile_run_a, is_keyfile_run_b); } /* After we determined that both profiles are either in /run or not, * tombstones are always more important than non-tombstones. */ NM_CMP_DIRECT (meta_data_a && meta_data_a->is_tombstone, meta_data_b && meta_data_b->is_tombstone); /* Again, prioritized entries are sorted first (higher priority). */ NM_CMP_FIELD_UNSAFE (sd_a, sd_b, prioritize); /* finally, compare the storages. This basically honors the timestamp * of the profile and the relative order of the source plugin (via the * @plugins list). */ return nm_settings_storage_cmp (sd_a->storage, sd_b->storage, plugins); } static int _sett_conn_entry_sds_update_cmp (const CList *ls_a, const CList *ls_b, gconstpointer user_data) { /* we sort highest priority storages first (descending). Hence, the order is swapped. */ return _sett_conn_entry_sds_update_cmp_ascending (c_list_entry (ls_b, StorageData, sd_lst), c_list_entry (ls_a, StorageData, sd_lst), user_data); } static void _sett_conn_entry_sds_update (NMSettings *self, SettConnEntry *sett_conn_entry) { StorageData *sd; StorageData *sd_safe; StorageData *sd_dirty; gboolean reprioritize; nm_assert_storage_data_lst (&sett_conn_entry->sd_lst_head); nm_assert_storage_data_lst (&sett_conn_entry->dirty_sd_lst_head); /* we merge the dirty list with the previous list. * * The idea is: * * - _connection_changed_track() appends events for the same UUID. Meaning: * if the storage is new, it get appended (having lower priority). * If it already exist and is an update for an event that we already * track it, it keeps the list position in @dirty_sd_lst_head unchanged. * * - during merge, we want to preserve the previous order (with higher * priority first in the list). */ /* first go through all storages that we track and check whether they * got an update...*/ reprioritize = FALSE; c_list_for_each_entry (sd, &sett_conn_entry->dirty_sd_lst_head, sd_lst) { if (sd->prioritize) { reprioritize = TRUE; break; } } nm_assert_storage_data_lst (&sett_conn_entry->sd_lst_head); c_list_for_each_entry_safe (sd, sd_safe, &sett_conn_entry->sd_lst_head, sd_lst) { sd_dirty = _storage_data_find_in_lst (&sett_conn_entry->dirty_sd_lst_head, sd->storage); if (!sd_dirty) { /* there is no update for this storage (except maybe reprioritize). */ if (reprioritize) sd->prioritize = FALSE; continue; } nm_g_object_ref_set (&sd->connection, sd_dirty->connection); sd->prioritize = sd_dirty->prioritize; _storage_data_destroy (sd_dirty); } nm_assert_storage_data_lst (&sett_conn_entry->sd_lst_head); /* all remaining (so far unseen) dirty entries are appended to the merged list. * (append means lower priority). */ c_list_splice (&sett_conn_entry->sd_lst_head, &sett_conn_entry->dirty_sd_lst_head); nm_assert_storage_data_lst (&sett_conn_entry->sd_lst_head); /* we drop the entries that are no longer "alive" (meaning, they no longer * indicate a connection and are not a tombstone). */ c_list_for_each_entry_safe (sd, sd_safe, &sett_conn_entry->sd_lst_head, sd_lst) { if (!_storage_data_is_alive (sd)) _storage_data_destroy (sd); } nm_assert_storage_data_lst (&sett_conn_entry->sd_lst_head); nm_assert (c_list_is_empty (&sett_conn_entry->dirty_sd_lst_head)); /* as last, we sort the entries. Note that this is a stable-sort... */ c_list_sort (&sett_conn_entry->sd_lst_head, _sett_conn_entry_sds_update_cmp, NM_SETTINGS_GET_PRIVATE (self)->plugins); nm_assert_storage_data_lst (&sett_conn_entry->sd_lst_head); nm_assert (c_list_is_empty (&sett_conn_entry->dirty_sd_lst_head)); } /*****************************************************************************/ static NMConnection * _connection_changed_normalize_connection (NMSettingsStorage *storage, NMConnection *connection, GVariant *secrets_to_merge, NMConnection **out_connection_cloned) { gs_unref_object NMConnection *connection_cloned = NULL; gs_free_error GError *error = NULL; const char *uuid; nm_assert (NM_IS_SETTINGS_STORAGE (storage)); nm_assert (out_connection_cloned && !*out_connection_cloned); if (!connection) return NULL; nm_assert (NM_IS_CONNECTION (connection)); uuid = nm_settings_storage_get_uuid (storage); if (secrets_to_merge) { connection_cloned = nm_simple_connection_new_clone (connection); connection = connection_cloned; nm_connection_update_secrets (connection, NULL, secrets_to_merge, NULL); } if (!_nm_connection_ensure_normalized (connection, !!connection_cloned, uuid, FALSE, connection_cloned ? NULL : &connection_cloned, &error)) { /* this is most likely a bug in the plugin. It provided a connection that no longer verifies. * Well, I guess it could also happen when we merge @secrets_to_merge above. In any case * somewhere is a bug. */ _LOGT ("storage[%s,"NM_SETTINGS_STORAGE_PRINT_FMT"]: plugin provided an invalid connection: %s", uuid, NM_SETTINGS_STORAGE_PRINT_ARG (storage), error->message); return NULL; } if (connection_cloned) connection = connection_cloned; *out_connection_cloned = g_steal_pointer (&connection_cloned); return connection; } /*****************************************************************************/ static void _connection_changed_update (NMSettings *self, SettConnEntry *sett_conn_entry, NMConnection *connection, NMSettingsConnectionIntFlags sett_flags, NMSettingsConnectionIntFlags sett_mask, NMSettingsConnectionUpdateReason update_reason) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gs_unref_object NMConnection *connection_old = NULL; NMSettingsStorage *storage = sett_conn_entry->storage; gs_unref_object NMSettingsConnection *sett_conn = g_object_ref (sett_conn_entry->sett_conn); const char *path; gboolean is_new; nm_assert (!NM_FLAGS_ANY (sett_mask, ~_NM_SETTINGS_CONNECTION_INT_FLAGS_PERSISTENT_MASK)); nm_assert (!NM_FLAGS_ANY (sett_flags, ~sett_mask)); is_new = c_list_is_empty (&sett_conn->_connections_lst); _LOGT ("update[%s]: %s connection \"%s\" ("NM_SETTINGS_STORAGE_PRINT_FMT")", nm_settings_storage_get_uuid (storage), is_new ? "adding" : "updating", nm_connection_get_id (connection), NM_SETTINGS_STORAGE_PRINT_ARG (storage)); _nm_settings_connection_set_storage (sett_conn, storage); _nm_settings_connection_set_connection (sett_conn, connection, &connection_old, update_reason); if (is_new) { _nm_settings_connection_register_kf_dbs (sett_conn, priv->kf_db_timestamps, priv->kf_db_seen_bssids); _clear_connections_cached_list (priv); c_list_link_tail (&priv->connections_lst_head, &sett_conn->_connections_lst); priv->connections_len++; priv->connections_generation++; g_signal_connect (sett_conn, NM_SETTINGS_CONNECTION_FLAGS_CHANGED, G_CALLBACK (connection_flags_changed), self); } if (NM_FLAGS_HAS (update_reason, NM_SETTINGS_CONNECTION_UPDATE_REASON_BLOCK_AUTOCONNECT)) { nm_settings_connection_autoconnect_blocked_reason_set (sett_conn, NM_SETTINGS_AUTO_CONNECT_BLOCKED_REASON_USER_REQUEST, TRUE); } sett_mask |= NM_SETTINGS_CONNECTION_INT_FLAGS_VISIBLE; if (nm_settings_connection_check_visibility (sett_conn, priv->session_monitor)) sett_flags |= NM_SETTINGS_CONNECTION_INT_FLAGS_VISIBLE; else nm_assert (!NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_VISIBLE)); sett_mask |= NM_SETTINGS_CONNECTION_INT_FLAGS_UNSAVED; if (nm_settings_storage_is_keyfile_run (storage)) sett_flags |= NM_SETTINGS_CONNECTION_INT_FLAGS_UNSAVED; else { nm_assert (!NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_UNSAVED)); /* Profiles that don't reside in /run, are never nm-generated * and never volatile. */ sett_mask |= ( NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE); sett_flags &= ~( NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE); } nm_settings_connection_set_flags_full (sett_conn, sett_mask, sett_flags); if (is_new) { /* FIXME(shutdown): The NMSettings instance can't be disposed * while there is any exported connection. Ideally we should * unexport all connections on NMSettings' disposal, but for now * leak @self on termination when there are connections alive. */ path = nm_dbus_object_export (NM_DBUS_OBJECT (sett_conn)); } else path = nm_dbus_object_get_path (NM_DBUS_OBJECT (sett_conn)); if ( is_new || connection_old) { nm_utils_log_connection_diff (nm_settings_connection_get_connection (sett_conn), connection_old, LOGL_DEBUG, LOGD_CORE, is_new ? "new connection" : "update connection", "++ ", path); } if (is_new) { nm_dbus_object_emit_signal (NM_DBUS_OBJECT (self), &interface_info_settings, &signal_info_new_connection, "(o)", path); _notify (self, PROP_CONNECTIONS); _emit_connection_added (self, sett_conn); } else { _nm_settings_connection_emit_dbus_signal_updated (sett_conn); _emit_connection_updated (self, sett_conn, update_reason); } if ( !priv->started || priv->startup_complete_idx) { if (nm_settings_has_connection (self, sett_conn)) _startup_complete_notify_connection (self, sett_conn, FALSE); } } static void _connection_changed_delete (NMSettings *self, NMSettingsStorage *storage, NMSettingsConnection *sett_conn, gboolean allow_add_to_no_auto_default) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gs_unref_object NMConnection *connection_for_agents = NULL; NMDevice *device; const char *uuid; nm_assert (NM_IS_SETTINGS_CONNECTION (sett_conn)); nm_assert (c_list_contains (&priv->connections_lst_head, &sett_conn->_connections_lst)); nm_assert (nm_dbus_object_is_exported (NM_DBUS_OBJECT (sett_conn))); uuid = nm_settings_storage_get_uuid (storage); _LOGT ("update[%s]: delete connection \"%s\" ("NM_SETTINGS_STORAGE_PRINT_FMT")", uuid, nm_settings_connection_get_id (sett_conn), NM_SETTINGS_STORAGE_PRINT_ARG (storage)); /* When the default wired sett_conn is removed (either deleted or saved to * a new persistent sett_conn by a plugin), write the MAC address of the * wired device to the config file and don't create a new default wired * sett_conn for that device again. */ device = nm_settings_connection_default_wired_get_device (sett_conn); if (device) default_wired_clear_tag (self, device, sett_conn, allow_add_to_no_auto_default); g_signal_handlers_disconnect_by_func (sett_conn, G_CALLBACK (connection_flags_changed), self); _clear_connections_cached_list (priv); c_list_unlink (&sett_conn->_connections_lst); priv->connections_len--; priv->connections_generation++; /* Tell agents to remove secrets for this connection */ connection_for_agents = nm_simple_connection_new_clone (nm_settings_connection_get_connection (sett_conn)); nm_connection_clear_secrets (connection_for_agents); nm_agent_manager_delete_secrets (priv->agent_mgr, nm_dbus_object_get_path (NM_DBUS_OBJECT (self)), connection_for_agents); _notify (self, PROP_CONNECTIONS); _nm_settings_connection_emit_dbus_signal_removed (sett_conn); nm_dbus_object_emit_signal (NM_DBUS_OBJECT (self), &interface_info_settings, &signal_info_connection_removed, "(o)", nm_dbus_object_get_path (NM_DBUS_OBJECT (sett_conn))); nm_dbus_object_unexport (NM_DBUS_OBJECT (sett_conn)); nm_settings_connection_set_flags (sett_conn, NM_SETTINGS_CONNECTION_INT_FLAGS_VISIBLE | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE, FALSE); _emit_connection_removed (self, sett_conn); _nm_settings_connection_cleanup_after_remove (sett_conn); nm_key_file_db_remove_key (priv->kf_db_timestamps, uuid); nm_key_file_db_remove_key (priv->kf_db_seen_bssids, uuid); if ( !priv->started || priv->startup_complete_idx) _startup_complete_notify_connection (self, sett_conn, TRUE); } static void _connection_changed_process_one (NMSettings *self, SettConnEntry *sett_conn_entry, gboolean allow_add_to_no_auto_default, NMSettingsConnectionIntFlags sett_flags, NMSettingsConnectionIntFlags sett_mask, gboolean override_sett_flags, NMSettingsConnectionUpdateReason update_reason) { StorageData *sd_best; c_list_unlink (&sett_conn_entry->sce_dirty_lst); _sett_conn_entry_sds_update (self, sett_conn_entry); sd_best = c_list_first_entry (&sett_conn_entry->sd_lst_head, StorageData, sd_lst);; if ( !sd_best || !sd_best->connection) { gs_unref_object NMSettingsConnection *sett_conn = NULL; gs_unref_object NMSettingsStorage *storage = NULL; if (!sett_conn_entry->sett_conn) { if (!sd_best) { _sett_conn_entries_remove_and_destroy (self, sett_conn_entry); return; } if (sett_conn_entry->storage != sd_best->storage) { _LOGT ("update[%s]: shadow UUID ("NM_SETTINGS_STORAGE_PRINT_FMT")", sett_conn_entry->uuid, NM_SETTINGS_STORAGE_PRINT_ARG (sd_best->storage)); } nm_g_object_ref_set (&sett_conn_entry->storage, sd_best->storage); return; } sett_conn = g_steal_pointer (&sett_conn_entry->sett_conn); if (sd_best) { storage = g_object_ref (sd_best->storage); nm_g_object_ref_set (&sett_conn_entry->storage, storage); nm_assert_valid_settings_storage (NULL, storage); } else { storage = g_object_ref (sett_conn_entry->storage); _sett_conn_entries_remove_and_destroy (self, sett_conn_entry); } _connection_changed_delete (self, storage, sett_conn, allow_add_to_no_auto_default); return; } if (override_sett_flags) { NMSettingsConnectionIntFlags s_f, s_m; nm_settings_storage_load_sett_flags (sd_best->storage, &s_f, &s_m); nm_assert (!NM_FLAGS_ANY (s_f, ~s_m)); sett_mask |= s_m; sett_flags = (sett_flags & ~s_m) | (s_f & s_m); } nm_g_object_ref_set (&sett_conn_entry->storage, sd_best->storage); if (!sett_conn_entry->sett_conn) sett_conn_entry->sett_conn = nm_settings_connection_new (); _connection_changed_update (self, sett_conn_entry, sd_best->connection, sett_flags, sett_mask, update_reason); } static void _connection_changed_process_all_dirty (NMSettings *self, gboolean allow_add_to_no_auto_default, NMSettingsConnectionIntFlags sett_flags, NMSettingsConnectionIntFlags sett_mask, gboolean override_sett_flags, NMSettingsConnectionUpdateReason update_reason) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); SettConnEntry *sett_conn_entry; while ((sett_conn_entry = c_list_first_entry (&priv->sce_dirty_lst_head, SettConnEntry, sce_dirty_lst))) { _connection_changed_process_one (self, sett_conn_entry, allow_add_to_no_auto_default, sett_flags, sett_mask, override_sett_flags, update_reason); } } static SettConnEntry * _connection_changed_track (NMSettings *self, NMSettingsStorage *storage, NMConnection *connection, gboolean prioritize) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); SettConnEntry *sett_conn_entry; StorageData *sd; const char *uuid; nm_assert_valid_settings_storage (NULL, storage); uuid = nm_settings_storage_get_uuid (storage); nm_assert (!connection || NM_IS_CONNECTION (connection)); nm_assert (!connection || (_nm_connection_verify (connection, NULL) == NM_SETTING_VERIFY_SUCCESS)); nm_assert (!connection || nm_streq0 (uuid, nm_connection_get_uuid (connection))); nmtst_connection_assert_unchanging (connection); sett_conn_entry = _sett_conn_entries_get (self, uuid) ?: _sett_conn_entries_create_and_add (self, uuid); if (_LOGT_ENABLED ()) { const char *filename; const NMSettingsMetaData *meta_data; const char *shadowed_storage; gboolean shadowed_owned; filename = nm_settings_storage_get_filename (storage); if (connection) { shadowed_storage = nm_settings_storage_get_shadowed_storage (storage, &shadowed_owned); _LOGT ("storage[%s,"NM_SETTINGS_STORAGE_PRINT_FMT"]: change event with connection \"%s\"%s%s%s%s%s%s", sett_conn_entry->uuid, NM_SETTINGS_STORAGE_PRINT_ARG (storage), nm_connection_get_id (connection), NM_PRINT_FMT_QUOTED (filename, " (file \"", filename, "\")", ""), NM_PRINT_FMT_QUOTED (shadowed_storage, shadowed_owned ? " (owns \"" : " (shadows \"", shadowed_storage, "\")", "")); } else if ((meta_data = nm_settings_storage_is_meta_data (storage))) { nm_assert (meta_data->is_tombstone); shadowed_storage = nm_settings_storage_get_shadowed_storage (storage, &shadowed_owned); _LOGT ("storage[%s,"NM_SETTINGS_STORAGE_PRINT_FMT"]: change event for %shiding profile%s%s%s%s%s%s", sett_conn_entry->uuid, NM_SETTINGS_STORAGE_PRINT_ARG (storage), nm_settings_storage_is_meta_data_alive (storage) ? "" : "dropping ", NM_PRINT_FMT_QUOTED (filename, " (file \"", filename, "\")", ""), NM_PRINT_FMT_QUOTED (shadowed_storage, shadowed_owned ? " (owns \"" : " (shadows \"", shadowed_storage, "\")", "")); } else { _LOGT ("storage[%s,"NM_SETTINGS_STORAGE_PRINT_FMT"]: change event for dropping profile%s%s%s", sett_conn_entry->uuid, NM_SETTINGS_STORAGE_PRINT_ARG (storage), NM_PRINT_FMT_QUOTED (filename, " (file \"", filename, "\")", "")); } } /* see _sett_conn_entry_sds_update() for why we append the new events * and leave existing ones at their position. */ sd = _storage_data_find_in_lst (&sett_conn_entry->dirty_sd_lst_head, storage); if (sd) nm_g_object_ref_set (&sd->connection, connection); else { sd = _storage_data_new_stale (storage, connection); c_list_link_tail (&sett_conn_entry->dirty_sd_lst_head, &sd->sd_lst); } if (prioritize) { StorageData *sd2; /* only one entry can be prioritized. */ c_list_for_each_entry (sd2, &sett_conn_entry->dirty_sd_lst_head, sd_lst) sd2->prioritize = FALSE; sd->prioritize = TRUE; } nm_c_list_move_tail (&priv->sce_dirty_lst_head, &sett_conn_entry->sce_dirty_lst); return sett_conn_entry; } /*****************************************************************************/ static void _plugin_connections_reload_cb (NMSettingsPlugin *plugin, NMSettingsStorage *storage, NMConnection *connection, gpointer user_data) { _connection_changed_track (user_data, storage, connection, FALSE); } static void _plugin_connections_reload (NMSettings *self) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); GSList *iter; for (iter = priv->plugins; iter; iter = iter->next) { nm_settings_plugin_reload_connections (iter->data, _plugin_connections_reload_cb, self); } _connection_changed_process_all_dirty (self, FALSE, NM_SETTINGS_CONNECTION_INT_FLAGS_NONE, NM_SETTINGS_CONNECTION_INT_FLAGS_NONE, TRUE, NM_SETTINGS_CONNECTION_UPDATE_REASON_RESET_SYSTEM_SECRETS | NM_SETTINGS_CONNECTION_UPDATE_REASON_RESET_AGENT_SECRETS); for (iter = priv->plugins; iter; iter = iter->next) nm_settings_plugin_load_connections_done (iter->data); } /*****************************************************************************/ static gboolean _add_connection_to_first_plugin (NMSettings *self, SettConnEntry *sett_conn_entry, NMConnection *new_connection, gboolean in_memory, NMSettingsConnectionIntFlags sett_flags, const char *shadowed_storage, gboolean shadowed_owned, NMSettingsStorage **out_new_storage, NMConnection **out_new_connection, GError **error) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gs_free_error GError *first_error = NULL; GSList *iter; const char *uuid; uuid = nm_connection_get_uuid (new_connection); nm_assert (nm_utils_is_uuid (uuid)); for (iter = priv->plugins; iter; iter = iter->next) { NMSettingsPlugin *plugin = NM_SETTINGS_PLUGIN (iter->data); gs_unref_object NMSettingsStorage *storage = NULL; gs_unref_object NMConnection *connection_to_add = NULL; gs_unref_object NMConnection *connection_to_add_cloned = NULL; NMConnection *connection_to_add_real = NULL; gs_unref_variant GVariant *agent_owned_secrets = NULL; gs_free_error GError *add_error = NULL; gboolean success; const char *filename; if (!in_memory) { NMSettingsStorage *conflicting_storage; conflicting_storage = _sett_conn_entry_storage_find_conflicting_storage (sett_conn_entry, plugin, NULL, priv->plugins); if (conflicting_storage) { /* we have a connection provided by a plugin with higher priority than the one * we would want to add the connection. We cannot do that, because doing so * would result in adding a connection that gets hidden by the existing profile. * Also, since we test the plugins in order of priority, all following plugins * are unsuitable. * * Multiple connection plugins are so cumbersome, especially if they are unable * to add the connection. I suggest to disable all plugins except keyfile. */ _LOGT ("add-connection: failed to add %s/'%s': there is an existing storage "NM_SETTINGS_STORAGE_PRINT_FMT" with higher priority", nm_connection_get_uuid (new_connection), nm_connection_get_id (new_connection), NM_SETTINGS_STORAGE_PRINT_ARG (conflicting_storage)); nm_assert (first_error); break; } } if (plugin == (NMSettingsPlugin *) priv->keyfile_plugin) { success = nms_keyfile_plugin_add_connection (priv->keyfile_plugin, new_connection, in_memory, NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED), NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE), shadowed_storage, shadowed_owned, &storage, &connection_to_add, &add_error); } else { if (in_memory) continue; nm_assert (!NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED)); nm_assert (!NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE)); success = nm_settings_plugin_add_connection (plugin, new_connection, &storage, &connection_to_add, &add_error); } if (!success) { _LOGT ("add-connection: failed to add %s/'%s': %s", nm_connection_get_uuid (new_connection), nm_connection_get_id (new_connection), add_error->message); if (!first_error) first_error = g_steal_pointer (&add_error); continue; } if (!nm_streq0 (nm_settings_storage_get_uuid (storage), uuid)) { nm_assert_not_reached (); continue; } agent_owned_secrets = nm_connection_to_dbus (new_connection, NM_CONNECTION_SERIALIZE_ONLY_SECRETS | NM_CONNECTION_SERIALIZE_WITH_SECRETS_AGENT_OWNED); connection_to_add_real = _connection_changed_normalize_connection (storage, connection_to_add, agent_owned_secrets, &connection_to_add_cloned); if (!connection_to_add_real) { nm_assert_not_reached (); continue; } filename = nm_settings_storage_get_filename (storage); _LOGT ("add-connection: successfully added connection %s,'%s' ("NM_SETTINGS_STORAGE_PRINT_FMT"%s%s%s", nm_settings_storage_get_uuid (storage), nm_connection_get_id (new_connection), NM_SETTINGS_STORAGE_PRINT_ARG (storage), NM_PRINT_FMT_QUOTED (filename, ", \"", filename, "\")", ")")); *out_new_storage = g_steal_pointer (&storage); *out_new_connection = g_steal_pointer (&connection_to_add_cloned) ?: g_steal_pointer (&connection_to_add); nm_assert (NM_IS_CONNECTION (*out_new_connection)); return TRUE; } nm_assert (first_error); g_propagate_error (error, g_steal_pointer (&first_error)); return FALSE; } static gboolean _update_connection_to_plugin (NMSettings *self, NMSettingsStorage *storage, NMConnection *connection, NMSettingsConnectionIntFlags sett_flags, gboolean force_rename, const char *shadowed_storage, gboolean shadowed_owned, NMSettingsStorage **out_new_storage, NMConnection **out_new_connection, GError **error) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); NMSettingsPlugin *plugin; gboolean success; plugin = nm_settings_storage_get_plugin (storage); if (plugin == (NMSettingsPlugin *) priv->keyfile_plugin) { success = nms_keyfile_plugin_update_connection (priv->keyfile_plugin, storage, connection, NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED), NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE), shadowed_storage, shadowed_owned, force_rename, out_new_storage, out_new_connection, error); } else { nm_assert (!shadowed_storage); nm_assert (!shadowed_owned); success = nm_settings_plugin_update_connection (plugin, storage, connection, out_new_storage, out_new_connection, error); } return success; } static void _set_nmmeta_tombstone (NMSettings *self, const char *uuid, gboolean tombstone_on_disk, gboolean tombstone_in_memory, const char *shadowed_storage) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gs_unref_object NMSettingsStorage *tombstone_1_storage = NULL; gs_unref_object NMSettingsStorage *tombstone_2_storage = NULL; if (tombstone_on_disk) { if (!nms_keyfile_plugin_set_nmmeta_tombstone (priv->keyfile_plugin, FALSE, uuid, FALSE, TRUE, NULL, &tombstone_1_storage, NULL)) tombstone_in_memory = TRUE; if (tombstone_1_storage) _connection_changed_track (self, tombstone_1_storage, NULL, FALSE); } if (tombstone_in_memory) { if (!nms_keyfile_plugin_set_nmmeta_tombstone (priv->keyfile_plugin, FALSE, uuid, TRUE, TRUE, shadowed_storage, &tombstone_2_storage, NULL)) { nms_keyfile_plugin_set_nmmeta_tombstone (priv->keyfile_plugin, TRUE, uuid, TRUE, TRUE, shadowed_storage, &tombstone_2_storage, NULL); } _connection_changed_track (self, tombstone_2_storage, NULL, FALSE); } } /** * nm_settings_add_connection: * @self: the #NMSettings object * @connection: the source connection to create a new #NMSettingsConnection from * @persist_mode: the persist-mode for this profile. * @add_reason: the add-reason flags. * @sett_flags: the settings flags to set. * @out_sett_conn: (allow-none) (transfer none): the added settings connection on success. * @error: on return, a location to store any errors that may occur * * Creates a new #NMSettingsConnection for the given source @connection. * The returned object is owned by @self and the caller must reference * the object to continue using it. * * Returns: TRUE on success. */ gboolean nm_settings_add_connection (NMSettings *self, NMConnection *connection, NMSettingsConnectionPersistMode persist_mode, NMSettingsConnectionAddReason add_reason, NMSettingsConnectionIntFlags sett_flags, NMSettingsConnection **out_sett_conn, GError **error) { NMSettingsPrivate *priv; gs_unref_object NMConnection *connection_cloned_1 = NULL; gs_unref_object NMConnection *new_connection = NULL; gs_unref_object NMSettingsStorage *new_storage = NULL; gs_unref_object NMSettingsStorage *shadowed_storage = NULL; NMSettingsStorage *update_storage = NULL; gs_free_error GError *local = NULL; SettConnEntry *sett_conn_entry; const char *uuid; StorageData *sd; gboolean new_in_memory; gboolean success; const char *shadowed_storage_filename = NULL; priv = NM_SETTINGS_GET_PRIVATE (self); nm_assert (NM_IN_SET (persist_mode, NM_SETTINGS_CONNECTION_PERSIST_MODE_TO_DISK, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_ONLY)); new_in_memory = (persist_mode != NM_SETTINGS_CONNECTION_PERSIST_MODE_TO_DISK); nm_assert (!NM_FLAGS_ANY (sett_flags, ~_NM_SETTINGS_CONNECTION_INT_FLAGS_PERSISTENT_MASK)); if (NM_FLAGS_ANY (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE | NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED)) { nm_assert (new_in_memory); new_in_memory = TRUE; } nm_assert (!NM_FLAGS_ANY (add_reason, ~NM_SETTINGS_CONNECTION_ADD_REASON_BLOCK_AUTOCONNECT)); NM_SET_OUT (out_sett_conn, NULL); uuid = nm_connection_get_uuid (connection); sett_conn_entry = _sett_conn_entries_get (self, uuid); if (_sett_conn_entry_get_conn (sett_conn_entry)) { g_set_error_literal (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_UUID_EXISTS, "a connection with this UUID already exists"); return FALSE; } if (!_nm_connection_ensure_normalized (connection, FALSE, NULL, FALSE, &connection_cloned_1, &local)) { g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION, "connection is invalid: %s", local->message); return FALSE; } if (connection_cloned_1) connection = connection_cloned_1; if (sett_conn_entry) { c_list_for_each_entry (sd, &sett_conn_entry->sd_lst_head, sd_lst) { if (!nm_settings_storage_is_meta_data (sd->storage)) continue; shadowed_storage = nm_g_object_ref (_sett_conn_entry_find_shadowed_storage (sett_conn_entry, nm_settings_storage_get_shadowed_storage (sd->storage, NULL), NULL)); if (shadowed_storage) { /* We have a nmmeta tombstone that indicates that a storage is shadowed. * * This happens when deleting a in-memory profile that was decoupled from * the persitant storage with NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_DETACHED. * We need to take over this storage again... */ break; } } } if ( shadowed_storage && !new_in_memory) { NMSettingsStorage *conflicting_storage; conflicting_storage = _sett_conn_entry_storage_find_conflicting_storage (sett_conn_entry, nm_settings_storage_get_plugin (shadowed_storage), shadowed_storage, priv->plugins); if (conflicting_storage) { /* We cannot add the profile as @shadowed_storage, because there is another, existing storage * that would hide it. Just add it as new storage. In general, this leads to duplication of profiles, * but the circumstances where this happens are very exotic (you need at least one additional settings * plugin, then going through the paths of making shadowed_storage in-memory-detached and delete it, * and finally adding the conflicting storage outside of NM and restart/reload). */ _LOGT ("ignore shadowed storage "NM_SETTINGS_STORAGE_PRINT_FMT" due to conflicting storage "NM_SETTINGS_STORAGE_PRINT_FMT, NM_SETTINGS_STORAGE_PRINT_ARG (shadowed_storage), NM_SETTINGS_STORAGE_PRINT_ARG (conflicting_storage)); } else update_storage = shadowed_storage; } shadowed_storage_filename = ( shadowed_storage && !update_storage) ? nm_settings_storage_get_filename_for_shadowed_storage (shadowed_storage) : NULL; again_add_connection: if (!update_storage) { success = _add_connection_to_first_plugin (self, sett_conn_entry, connection, new_in_memory, sett_flags, shadowed_storage_filename, FALSE, &new_storage, &new_connection, &local); } else { success = _update_connection_to_plugin (self, update_storage, connection, sett_flags, FALSE, shadowed_storage_filename, FALSE, &new_storage, &new_connection, &local); if (!success) { if (!NMS_IS_KEYFILE_STORAGE (update_storage)) { /* hm, the intended storage is not keyfile (it's ifcfg-rh). This settings * plugin may not support the new connection. So step back and retry adding * the profile anew. */ _LOGT ("failure to add profile as existing storage \"%s\": %s", nm_settings_storage_get_filename (update_storage), local->message); update_storage = NULL; g_clear_object (&shadowed_storage); shadowed_storage_filename = NULL; g_clear_error (&local); goto again_add_connection; } } } if (!success) { if (!update_storage) { g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED, "failure adding connection: %s", local->message); } else { g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED, "failure writing connection to existing storage \"%s\": %s", nm_settings_storage_get_filename (update_storage), local->message); } return FALSE; } sett_conn_entry = _connection_changed_track (self, new_storage, new_connection, TRUE); c_list_for_each_entry (sd, &sett_conn_entry->sd_lst_head, sd_lst) { const NMSettingsMetaData *meta_data; gs_unref_object NMSettingsStorage *new_tombstone_storage = NULL; gboolean in_memory; gboolean simulate; meta_data = nm_settings_storage_is_meta_data_alive (sd->storage); if ( !meta_data || !meta_data->is_tombstone) continue; if (nm_settings_storage_is_keyfile_run (sd->storage)) in_memory = TRUE; else { if (nm_settings_storage_is_keyfile_run (new_storage)) { /* Don't remove the file from /etc if we just wrote an in-memory connection */ continue; } in_memory = FALSE; } simulate = FALSE; again_delete_tombstone: if (!nms_keyfile_plugin_set_nmmeta_tombstone (priv->keyfile_plugin, simulate, uuid, in_memory, FALSE, NULL, &new_tombstone_storage, NULL)) { /* Ups, something went wrong. We really need to get rid of the tombstone. At least * forget about it in-memory. Upong next restart/reload, this might be reverted * however :( .*/ if (!simulate) { simulate = TRUE; goto again_delete_tombstone; } } if (new_tombstone_storage) _connection_changed_track (self, new_tombstone_storage, NULL, FALSE); } _connection_changed_process_all_dirty (self, FALSE, sett_flags, _NM_SETTINGS_CONNECTION_INT_FLAGS_PERSISTENT_MASK, FALSE, NM_SETTINGS_CONNECTION_UPDATE_REASON_RESET_SYSTEM_SECRETS | NM_SETTINGS_CONNECTION_UPDATE_REASON_RESET_AGENT_SECRETS | ( NM_FLAGS_HAS (add_reason, NM_SETTINGS_CONNECTION_ADD_REASON_BLOCK_AUTOCONNECT) ? NM_SETTINGS_CONNECTION_UPDATE_REASON_BLOCK_AUTOCONNECT : NM_SETTINGS_CONNECTION_UPDATE_REASON_NONE)); nm_assert (sett_conn_entry == _sett_conn_entries_get (self, sett_conn_entry->uuid)); nm_assert (NM_IS_SETTINGS_CONNECTION (sett_conn_entry->sett_conn)); NM_SET_OUT (out_sett_conn, _sett_conn_entry_get_conn (sett_conn_entry)); return TRUE; } /*****************************************************************************/ gboolean nm_settings_update_connection (NMSettings *self, NMSettingsConnection *sett_conn, NMConnection *connection, NMSettingsConnectionPersistMode persist_mode, NMSettingsConnectionIntFlags sett_flags, NMSettingsConnectionIntFlags sett_mask, NMSettingsConnectionUpdateReason update_reason, const char *log_context_name, GError **error) { gs_unref_object NMConnection *connection_cloned_1 = NULL; gs_unref_object NMConnection *new_connection_cloned = NULL; gs_unref_object NMConnection *new_connection = NULL; NMConnection *new_connection_real; gs_unref_object NMSettingsStorage *cur_storage = NULL; gs_unref_object NMSettingsStorage *new_storage = NULL; NMSettingsStorage *drop_storage = NULL; SettConnEntry *sett_conn_entry; gboolean cur_in_memory; gboolean new_in_memory; const char *uuid; gboolean tombstone_in_memory = FALSE; gboolean tombstone_on_disk = FALSE; g_return_val_if_fail (NM_IS_SETTINGS (self), FALSE); g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (sett_conn), FALSE); g_return_val_if_fail (!connection || NM_IS_CONNECTION (connection), FALSE); nm_assert (!NM_FLAGS_ANY (sett_mask, ~_NM_SETTINGS_CONNECTION_INT_FLAGS_PERSISTENT_MASK)); nm_assert (!NM_FLAGS_ANY (sett_flags, ~sett_mask)); nm_assert (NM_IN_SET (persist_mode, NM_SETTINGS_CONNECTION_PERSIST_MODE_KEEP, NM_SETTINGS_CONNECTION_PERSIST_MODE_NO_PERSIST, NM_SETTINGS_CONNECTION_PERSIST_MODE_TO_DISK, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_DETACHED, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_ONLY)); cur_storage = g_object_ref (nm_settings_connection_get_storage (sett_conn)); uuid = nm_settings_storage_get_uuid (cur_storage); nm_assert (NM_IS_SETTINGS_STORAGE (cur_storage)); sett_conn_entry = _sett_conn_entries_get (self, uuid); nm_assert (_sett_conn_entry_get_conn (sett_conn_entry) == sett_conn); if (connection) { gs_free_error GError *local = NULL; if (!_nm_connection_ensure_normalized (connection, FALSE, uuid, TRUE, &connection_cloned_1, &local)) { _LOGT ("update[%s]: %s: failed because profile is invalid: %s", nm_settings_storage_get_uuid (cur_storage), log_context_name, local->message); g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION, "connection is invalid: %s", local->message); return FALSE; } if (connection_cloned_1) connection = connection_cloned_1; } else connection = nm_settings_connection_get_connection (sett_conn); cur_in_memory = nm_settings_storage_is_keyfile_run (cur_storage); if (persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_KEEP) { persist_mode = cur_in_memory ? NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY : NM_SETTINGS_CONNECTION_PERSIST_MODE_TO_DISK; } if ( NM_FLAGS_HAS (sett_mask, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED) && !NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED)) { NMDevice *device; /* The connection has been changed by the user, it should no longer be * considered a default wired connection, and should no longer affect * the no-auto-default configuration option. */ device = nm_settings_connection_default_wired_get_device (sett_conn); if (device) { nm_assert (cur_in_memory); nm_assert (!NM_FLAGS_ANY (nm_settings_connection_get_flags (sett_conn), NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE)); default_wired_clear_tag (self, device, sett_conn, FALSE); if (NM_IN_SET (persist_mode, NM_SETTINGS_CONNECTION_PERSIST_MODE_NO_PERSIST)) { /* making a default-wired-connection a regular connection implies persisting * it to disk (unless specified differently). * * Actually, this line is probably unreached, because we should not use * NM_SETTINGS_CONNECTION_PERSIST_MODE_NO_PERSIST to toggle the nm-generated * flag. */ nm_assert_not_reached (); persist_mode = NM_SETTINGS_CONNECTION_PERSIST_MODE_TO_DISK; } } } if ( persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_NO_PERSIST && NM_FLAGS_ANY (sett_mask, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE) && NM_FLAGS_ANY ((sett_flags ^ nm_settings_connection_get_flags (sett_conn)) & sett_mask, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE)) { /* we update the nm-generated/volatile setting of a profile (which is inherrently * in-memory. The caller did not request to persist this to disk, however we need * to store the flags in run. */ nm_assert (cur_in_memory); persist_mode = NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY; } if (persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_TO_DISK) new_in_memory = FALSE; else if (NM_IN_SET (persist_mode, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_DETACHED, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_ONLY)) new_in_memory = TRUE; else { nm_assert (persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_NO_PERSIST); new_in_memory = cur_in_memory; } if (!new_in_memory) { /* Persistent connections cannot be volatile nor nm-generated. * * That is obviously true for volatile, as it is enforced by Update2() API. * * For nm-generated profiles also, because the nm-generated flag is only stored * for in-memory profiles. If we would persist the profile to /etc it would loose * the nm-generated flag after restart/reload, and that cannot be right. If a profile * ends up on disk, the information who created it gets lost. */ nm_assert (!NM_FLAGS_ANY (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE)); sett_mask |= NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE; sett_flags &= ~( NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE); } if (persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_NO_PERSIST) { new_storage = g_object_ref (cur_storage); new_connection_real = connection; _LOGT ("update[%s]: %s: update profile \"%s\" (not persisted)", nm_settings_storage_get_uuid (cur_storage), log_context_name, nm_connection_get_id (connection)); } else { NMSettingsStorage *shadowed_storage; const char *cur_shadowed_storage_filename; const char *new_shadowed_storage_filename = NULL; gboolean cur_shadowed_owned; gboolean new_shadowed_owned = FALSE; NMSettingsStorage *update_storage = NULL; gs_free_error GError *local = NULL; gboolean success; cur_shadowed_storage_filename = nm_settings_storage_get_shadowed_storage (cur_storage, &cur_shadowed_owned); shadowed_storage = _sett_conn_entry_find_shadowed_storage (sett_conn_entry, cur_shadowed_storage_filename, cur_storage); if (!shadowed_storage) { cur_shadowed_storage_filename = NULL; cur_shadowed_owned = FALSE; } if ( new_in_memory && persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_ONLY) { if (cur_in_memory) { drop_storage = shadowed_storage; update_storage = cur_storage; } else drop_storage = cur_storage; } else if ( !new_in_memory && cur_in_memory && shadowed_storage) { drop_storage = cur_storage; update_storage = shadowed_storage; } else if (new_in_memory != cur_in_memory) { if (!new_in_memory) drop_storage = cur_storage; else if (persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_ONLY) drop_storage = cur_storage; else { nm_assert (NM_IN_SET (persist_mode, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_DETACHED)); } } else if (nm_settings_storage_is_keyfile_lib (cur_storage)) { /* the profile is a keyfile in /usr/lib. It cannot be overwritten, we must migrate it * from /usr/lib to /etc. */ } else update_storage = cur_storage; if (new_in_memory) { if (persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_ONLY) { /* pass */ } else if (!cur_in_memory) { new_shadowed_storage_filename = nm_settings_storage_get_filename_for_shadowed_storage (cur_storage); if ( new_shadowed_storage_filename && persist_mode != NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_DETACHED) new_shadowed_owned = TRUE; } else { new_shadowed_storage_filename = cur_shadowed_storage_filename; if ( new_shadowed_storage_filename && persist_mode == NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY) new_shadowed_owned = TRUE; } } if (!update_storage) { success = _add_connection_to_first_plugin (self, sett_conn_entry, connection, new_in_memory, sett_flags, new_shadowed_storage_filename, new_shadowed_owned, &new_storage, &new_connection, &local); } else { success = _update_connection_to_plugin (self, update_storage, connection, sett_flags, update_reason, new_shadowed_storage_filename, new_shadowed_owned, &new_storage, &new_connection, &local); } if (!success) { gboolean ignore_failure; ignore_failure = NM_FLAGS_ANY (update_reason, NM_SETTINGS_CONNECTION_UPDATE_REASON_IGNORE_PERSIST_FAILURE); _LOGT ("update[%s]: %s: %sfailure to %s connection \"%s\" on storage: %s", nm_settings_storage_get_uuid (cur_storage), log_context_name, ignore_failure ? "ignore " : "", update_storage ? "update" : "write", nm_connection_get_id (connection), local->message); if (!ignore_failure) { g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION, "failed to %s connection: %s", update_storage ? "update" : "write", local->message); return FALSE; } new_storage = g_object_ref (cur_storage); new_connection_real = connection; } else { gs_unref_variant GVariant *agent_owned_secrets = NULL; _LOGT ("update[%s]: %s: %s profile \"%s\"", nm_settings_storage_get_uuid (cur_storage), log_context_name, update_storage ? "update" : "write", nm_connection_get_id (connection)); nm_assert_valid_settings_storage (NULL, new_storage); nm_assert (NM_IS_CONNECTION (new_connection)); nm_assert (nm_streq (uuid, nm_settings_storage_get_uuid (new_storage))); agent_owned_secrets = nm_connection_to_dbus (connection, NM_CONNECTION_SERIALIZE_ONLY_SECRETS | NM_CONNECTION_SERIALIZE_WITH_SECRETS_AGENT_OWNED); new_connection_real = _connection_changed_normalize_connection (new_storage, new_connection, agent_owned_secrets, &new_connection_cloned); if (!new_connection_real) { nm_assert_not_reached (); new_connection_real = new_connection; } } } nm_assert (NM_IS_SETTINGS_STORAGE (new_storage)); nm_assert (NM_IS_CONNECTION (new_connection_real)); _connection_changed_track (self, new_storage, new_connection_real, TRUE); if ( drop_storage && drop_storage != new_storage) { gs_free_error GError *local = NULL; if (!nm_settings_plugin_delete_connection (nm_settings_storage_get_plugin (drop_storage), drop_storage, &local)) { const char *filename; filename = nm_settings_storage_get_filename (drop_storage); _LOGT ("update[%s]: failed to delete moved storage "NM_SETTINGS_STORAGE_PRINT_FMT"%s%s%s: %s", nm_settings_storage_get_uuid (drop_storage), NM_SETTINGS_STORAGE_PRINT_ARG (drop_storage), NM_PRINT_FMT_QUOTED (filename, " (file \"", filename, "\")", ""), local->message); /* there is no aborting back form this. We must get rid of the connection and * cannot do better than log a message. Proceed, but remember to write tombstones. */ if (nm_settings_storage_is_keyfile_run (cur_storage)) tombstone_in_memory = TRUE; else tombstone_on_disk = TRUE; } else _connection_changed_track (self, drop_storage, NULL, FALSE); } _set_nmmeta_tombstone (self, uuid, tombstone_on_disk, tombstone_in_memory, NULL); _connection_changed_process_all_dirty (self, FALSE, sett_flags, sett_mask, FALSE, update_reason); return TRUE; } void nm_settings_delete_connection (NMSettings *self, NMSettingsConnection *sett_conn, gboolean allow_add_to_no_auto_default) { NMSettingsStorage *cur_storage; NMSettingsStorage *shadowed_storage; NMSettingsStorage *shadowed_storage_unowned = NULL; NMSettingsStorage *drop_storages[2] = { }; gs_free_error GError *local = NULL; SettConnEntry *sett_conn_entry; const char *cur_shadowed_storage_filename; const char *new_shadowed_storage_filename = NULL; gboolean cur_shadowed_owned; const char *uuid; gboolean tombstone_in_memory = FALSE; gboolean tombstone_on_disk = FALSE; int i; g_return_if_fail (NM_IS_SETTINGS (self)); g_return_if_fail (NM_IS_SETTINGS_CONNECTION (sett_conn)); g_return_if_fail (nm_settings_has_connection (self, sett_conn)); cur_storage = nm_settings_connection_get_storage (sett_conn); nm_assert (NM_IS_SETTINGS_STORAGE (cur_storage)); uuid = nm_settings_storage_get_uuid (cur_storage); nm_assert (nm_utils_is_uuid (uuid)); sett_conn_entry = _sett_conn_entries_get (self, uuid); g_return_if_fail (sett_conn_entry); nm_assert (sett_conn_entry->sett_conn == sett_conn); g_return_if_fail (sett_conn_entry->storage == cur_storage); if (NMS_IS_KEYFILE_STORAGE (cur_storage)) { NMSKeyfileStorage *s = NMS_KEYFILE_STORAGE (cur_storage); if (NM_IN_SET (s->storage_type, NMS_KEYFILE_STORAGE_TYPE_RUN, NMS_KEYFILE_STORAGE_TYPE_ETC)) drop_storages[0] = cur_storage; else tombstone_on_disk = TRUE; } else drop_storages[0] = cur_storage; cur_shadowed_storage_filename = nm_settings_storage_get_shadowed_storage (cur_storage, &cur_shadowed_owned); shadowed_storage = _sett_conn_entry_find_shadowed_storage (sett_conn_entry, cur_shadowed_storage_filename, cur_storage); if (shadowed_storage) { if (!cur_shadowed_owned) shadowed_storage_unowned = g_steal_pointer (&shadowed_storage); } drop_storages[1] = shadowed_storage; for (i = 0; i < (int) G_N_ELEMENTS (drop_storages); i++) { NMSettingsStorage *storage; StorageData *sd; storage = drop_storages[i]; if (!storage) continue; if (!nm_settings_plugin_delete_connection (nm_settings_storage_get_plugin (storage), storage, &local)) { _LOGT ("delete-connection: failed to delete storage "NM_SETTINGS_STORAGE_PRINT_FMT": %s", NM_SETTINGS_STORAGE_PRINT_ARG (storage), local->message); g_clear_error (&local); /* there is no aborting back form this. We must get rid of the connection and * cannot do better than log a message. Proceed, but remember to write tombstones. */ if (nm_settings_storage_is_keyfile_run (cur_storage)) tombstone_in_memory = TRUE; else tombstone_on_disk = TRUE; sett_conn_entry = _sett_conn_entries_get (self, uuid); } else sett_conn_entry = _connection_changed_track (self, storage, NULL, FALSE); c_list_for_each_entry (sd, &sett_conn_entry->sd_lst_head, sd_lst) { if (NM_IN_SET (sd->storage, drop_storages[0], drop_storages[1])) continue; if (!_storage_data_is_alive (sd)) continue; if (nm_settings_storage_is_meta_data (sd->storage)) continue; if (sd->storage == shadowed_storage_unowned) { /* this only happens if we leak a profile on disk after NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_DETACHED. * We need to write a tombstone and remember the shadowed-storage. */ tombstone_in_memory = TRUE; new_shadowed_storage_filename = nm_settings_storage_get_filename (shadowed_storage_unowned); continue; } /* we have still conflicting storages. We need to hide them with tombstones. */ if (nm_settings_storage_is_keyfile_run (sd->storage)) { tombstone_in_memory = TRUE; continue; } tombstone_on_disk = TRUE; } } _set_nmmeta_tombstone (self, uuid, tombstone_on_disk, tombstone_in_memory, new_shadowed_storage_filename); _connection_changed_process_all_dirty (self, allow_add_to_no_auto_default, NM_SETTINGS_CONNECTION_INT_FLAGS_NONE, NM_SETTINGS_CONNECTION_INT_FLAGS_NONE, FALSE, NM_SETTINGS_CONNECTION_UPDATE_REASON_NONE); } /*****************************************************************************/ static void send_agent_owned_secrets (NMSettings *self, NMSettingsConnection *sett_conn, NMAuthSubject *subject) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gs_unref_object NMConnection *for_agent = NULL; /* Dupe the connection so we can clear out non-agent-owned secrets, * as agent-owned secrets are the only ones we send back to be saved. * Only send secrets to agents of the same UID that called update too. */ for_agent = nm_simple_connection_new_clone (nm_settings_connection_get_connection (sett_conn)); _nm_connection_clear_secrets_by_secret_flags (for_agent, NM_SETTING_SECRET_FLAG_AGENT_OWNED); nm_agent_manager_save_secrets (priv->agent_mgr, nm_dbus_object_get_path (NM_DBUS_OBJECT (sett_conn)), for_agent, subject); } static void pk_add_cb (NMAuthChain *chain, GDBusMethodInvocation *context, gpointer user_data) { NMSettings *self = NM_SETTINGS (user_data); NMAuthCallResult result; gs_free_error GError *error = NULL; NMConnection *connection = NULL; gs_unref_object NMSettingsConnection *added = NULL; NMSettingsAddCallback callback; gpointer callback_data; NMAuthSubject *subject; const char *perm; nm_assert (G_IS_DBUS_METHOD_INVOCATION (context)); c_list_unlink (nm_auth_chain_parent_lst_list (chain)); perm = nm_auth_chain_get_data (chain, "perm"); nm_assert (perm); result = nm_auth_chain_get_result (chain, perm); if (result != NM_AUTH_CALL_RESULT_YES) { error = g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED, NM_UTILS_ERROR_MSG_INSUFF_PRIV); } else { /* Authorized */ connection = nm_auth_chain_get_data (chain, "connection"); nm_assert (NM_IS_CONNECTION (connection)); nm_settings_add_connection (self, connection, GPOINTER_TO_UINT (nm_auth_chain_get_data (chain, "persist-mode")), GPOINTER_TO_UINT (nm_auth_chain_get_data (chain, "add-reason")), GPOINTER_TO_UINT (nm_auth_chain_get_data (chain, "sett-flags")), &added, &error); /* The callback may remove the connection from the settings manager (e.g. * because it's found to be incompatible with the device on AddAndActivate). * But we need to keep it alive for a bit longer, precisely to check wehther * it's still known to the setting manager. */ nm_g_object_ref (added); } callback = nm_auth_chain_get_data (chain, "callback"); callback_data = nm_auth_chain_get_data (chain, "callback-data"); subject = nm_auth_chain_get_data (chain, "subject"); callback (self, added, error, context, subject, callback_data); /* Send agent-owned secrets to the agents */ if ( added && nm_settings_has_connection (self, added)) send_agent_owned_secrets (self, added, subject); } void nm_settings_add_connection_dbus (NMSettings *self, NMConnection *connection, NMSettingsConnectionPersistMode persist_mode, NMSettingsConnectionAddReason add_reason, NMSettingsConnectionIntFlags sett_flags, NMAuthSubject *subject, GDBusMethodInvocation *context, NMSettingsAddCallback callback, gpointer user_data) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); NMSettingConnection *s_con; NMAuthChain *chain; GError *error = NULL, *tmp_error = NULL; const char *perm; g_return_if_fail (NM_IS_CONNECTION (connection)); g_return_if_fail (NM_IS_AUTH_SUBJECT (subject)); g_return_if_fail (G_IS_DBUS_METHOD_INVOCATION (context)); nm_assert (!NM_FLAGS_ANY (sett_flags, ~_NM_SETTINGS_CONNECTION_INT_FLAGS_PERSISTENT_MASK)); /* Connection must be valid, of course */ if (_nm_connection_verify (connection, &tmp_error) != NM_SETTING_VERIFY_SUCCESS) { error = g_error_new (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION, "The connection was invalid: %s", tmp_error->message); g_error_free (tmp_error); goto done; } if (!nm_auth_is_subject_in_acl_set_error (connection, subject, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED, &error)) goto done; /* If the caller is the only user in the connection's permissions, then * we use the 'modify.own' permission instead of 'modify.system'. If the * request affects more than just the caller, require 'modify.system'. */ s_con = nm_connection_get_setting_connection (connection); nm_assert (s_con); if (nm_setting_connection_get_num_permissions (s_con) == 1) perm = NM_AUTH_PERMISSION_SETTINGS_MODIFY_OWN; else perm = NM_AUTH_PERMISSION_SETTINGS_MODIFY_SYSTEM; /* Validate the user request */ chain = nm_auth_chain_new_subject (subject, context, pk_add_cb, self); if (!chain) { error = g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED, NM_UTILS_ERROR_MSG_REQ_AUTH_FAILED); goto done; } c_list_link_tail (&priv->auth_lst_head, nm_auth_chain_parent_lst_list (chain)); nm_auth_chain_set_data (chain, "perm", (gpointer) perm, NULL); nm_auth_chain_set_data (chain, "connection", g_object_ref (connection), g_object_unref); nm_auth_chain_set_data (chain, "callback", callback, NULL); nm_auth_chain_set_data (chain, "callback-data", user_data, NULL); nm_auth_chain_set_data (chain, "subject", g_object_ref (subject), g_object_unref); nm_auth_chain_set_data (chain, "persist-mode", GUINT_TO_POINTER (persist_mode), NULL); nm_auth_chain_set_data (chain, "add-reason", GUINT_TO_POINTER (add_reason), NULL); nm_auth_chain_set_data (chain, "sett-flags", GUINT_TO_POINTER (sett_flags), NULL); nm_auth_chain_add_call_unsafe (chain, perm, TRUE); return; done: nm_assert (error); callback (self, NULL, error, context, subject, user_data); g_error_free (error); } static void settings_add_connection_add_cb (NMSettings *self, NMSettingsConnection *connection, GError *error, GDBusMethodInvocation *context, NMAuthSubject *subject, gpointer user_data) { gboolean is_add_connection_2 = GPOINTER_TO_INT (user_data); if (error) { g_dbus_method_invocation_return_gerror (context, error); nm_audit_log_connection_op (NM_AUDIT_OP_CONN_ADD, NULL, FALSE, NULL, subject, error->message); return; } if (is_add_connection_2) { GVariantBuilder builder; g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT); g_dbus_method_invocation_return_value (context, g_variant_new ("(oa{sv})", nm_dbus_object_get_path (NM_DBUS_OBJECT (connection)), &builder)); } else { g_dbus_method_invocation_return_value (context, g_variant_new ("(o)", nm_dbus_object_get_path (NM_DBUS_OBJECT (connection)))); } nm_audit_log_connection_op (NM_AUDIT_OP_CONN_ADD, connection, TRUE, NULL, subject, NULL); } static void settings_add_connection_helper (NMSettings *self, GDBusMethodInvocation *context, gboolean is_add_connection_2, GVariant *settings, NMSettingsAddConnection2Flags flags) { gs_unref_object NMConnection *connection = NULL; GError *error = NULL; gs_unref_object NMAuthSubject *subject = NULL; NMSettingsConnectionPersistMode persist_mode; connection = _nm_simple_connection_new_from_dbus (settings, NM_SETTING_PARSE_FLAGS_STRICT | NM_SETTING_PARSE_FLAGS_NORMALIZE, &error); if ( !connection || !nm_connection_verify_secrets (connection, &error)) { g_dbus_method_invocation_take_error (context, error); return; } subject = nm_auth_subject_new_unix_process_from_context (context); if (!subject) { g_dbus_method_invocation_return_error_literal (context, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED, NM_UTILS_ERROR_MSG_REQ_UID_UKNOWN); return; } if (NM_FLAGS_HAS (flags, NM_SETTINGS_ADD_CONNECTION2_FLAG_TO_DISK)) persist_mode = NM_SETTINGS_CONNECTION_PERSIST_MODE_TO_DISK; else { nm_assert (NM_FLAGS_HAS (flags, NM_SETTINGS_ADD_CONNECTION2_FLAG_IN_MEMORY)); persist_mode = NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_ONLY; } nm_settings_add_connection_dbus (self, connection, persist_mode, NM_FLAGS_HAS (flags, NM_SETTINGS_ADD_CONNECTION2_FLAG_BLOCK_AUTOCONNECT) ? NM_SETTINGS_CONNECTION_ADD_REASON_BLOCK_AUTOCONNECT : NM_SETTINGS_CONNECTION_ADD_REASON_NONE, NM_SETTINGS_CONNECTION_INT_FLAGS_NONE, subject, context, settings_add_connection_add_cb, GINT_TO_POINTER (!!is_add_connection_2)); } static void impl_settings_add_connection (NMDBusObject *obj, const NMDBusInterfaceInfoExtended *interface_info, const NMDBusMethodInfoExtended *method_info, GDBusConnection *connection, const char *sender, GDBusMethodInvocation *invocation, GVariant *parameters) { NMSettings *self = NM_SETTINGS (obj); gs_unref_variant GVariant *settings = NULL; g_variant_get (parameters, "(@a{sa{sv}})", &settings); settings_add_connection_helper (self, invocation, FALSE, settings, NM_SETTINGS_ADD_CONNECTION2_FLAG_TO_DISK); } static void impl_settings_add_connection_unsaved (NMDBusObject *obj, const NMDBusInterfaceInfoExtended *interface_info, const NMDBusMethodInfoExtended *method_info, GDBusConnection *connection, const char *sender, GDBusMethodInvocation *invocation, GVariant *parameters) { NMSettings *self = NM_SETTINGS (obj); gs_unref_variant GVariant *settings = NULL; g_variant_get (parameters, "(@a{sa{sv}})", &settings); settings_add_connection_helper (self, invocation, FALSE, settings, NM_SETTINGS_ADD_CONNECTION2_FLAG_IN_MEMORY); } static void impl_settings_add_connection2 (NMDBusObject *obj, const NMDBusInterfaceInfoExtended *interface_info, const NMDBusMethodInfoExtended *method_info, GDBusConnection *connection, const char *sender, GDBusMethodInvocation *invocation, GVariant *parameters) { NMSettings *self = NM_SETTINGS (obj); gs_unref_variant GVariant *settings = NULL; gs_unref_variant GVariant *args = NULL; NMSettingsAddConnection2Flags flags; const char *args_name; GVariantIter iter; guint32 flags_u; g_variant_get (parameters, "(@a{sa{sv}}u@a{sv})", &settings, &flags_u, &args); if (NM_FLAGS_ANY (flags_u, ~((guint32) ( NM_SETTINGS_ADD_CONNECTION2_FLAG_TO_DISK | NM_SETTINGS_ADD_CONNECTION2_FLAG_IN_MEMORY | NM_SETTINGS_ADD_CONNECTION2_FLAG_BLOCK_AUTOCONNECT)))) { g_dbus_method_invocation_take_error (invocation, g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_ARGUMENTS, "Unknown flags")); return; } flags = flags_u; if (!NM_FLAGS_ANY (flags, NM_SETTINGS_ADD_CONNECTION2_FLAG_TO_DISK | NM_SETTINGS_ADD_CONNECTION2_FLAG_IN_MEMORY)) { g_dbus_method_invocation_take_error (invocation, g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_ARGUMENTS, "Requires either to-disk (0x1) or in-memory (0x2) flags")); return; } if (NM_FLAGS_ALL (flags, NM_SETTINGS_ADD_CONNECTION2_FLAG_TO_DISK | NM_SETTINGS_ADD_CONNECTION2_FLAG_IN_MEMORY)) { g_dbus_method_invocation_take_error (invocation, g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_ARGUMENTS, "Cannot set to-disk (0x1) and in-memory (0x2) flags together")); return; } nm_assert (g_variant_is_of_type (args, G_VARIANT_TYPE ("a{sv}"))); g_variant_iter_init (&iter, args); while (g_variant_iter_next (&iter, "{&sv}", &args_name, NULL)) { g_dbus_method_invocation_take_error (invocation, g_error_new (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_ARGUMENTS, "Unsupported argument '%s'", args_name)); return; } settings_add_connection_helper (self, invocation, TRUE, settings, flags); } /*****************************************************************************/ static void impl_settings_load_connections (NMDBusObject *obj, const NMDBusInterfaceInfoExtended *interface_info, const NMDBusMethodInfoExtended *method_info, GDBusConnection *dbus_connection, const char *sender, GDBusMethodInvocation *invocation, GVariant *parameters) { NMSettings *self = NM_SETTINGS (obj); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gs_unref_ptrarray GPtrArray *failures = NULL; gs_free const char **filenames = NULL; gs_free char *op_result_str = NULL; g_variant_get (parameters, "(^a&s)", &filenames); /* The permission is already enforced by the D-Bus daemon, but we ensure * that the caller is still alive so that clients are forced to wait and * we'll be able to switch to polkit without breaking behavior. */ if (!nm_dbus_manager_ensure_uid (nm_dbus_object_get_manager (obj), invocation, G_MAXULONG, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED)) return; if ( filenames && filenames[0]) { NMSettingsPluginConnectionLoadEntry *entries; gsize n_entries; gsize i; GSList *iter; entries = nm_settings_plugin_create_connection_load_entries (filenames, &n_entries); for (iter = priv->plugins; iter; iter = iter->next) { NMSettingsPlugin *plugin = iter->data; nm_settings_plugin_load_connections (plugin, entries, n_entries, _plugin_connections_reload_cb, self); } for (i = 0; i < n_entries; i++) { NMSettingsPluginConnectionLoadEntry *entry = &entries[i]; if (!entry->handled) _LOGW ("load: no settings plugin could load \"%s\"", entry->filename); else if (entry->error) { _LOGW ("load: failure to load \"%s\": %s", entry->filename, entry->error->message); g_clear_error (&entry->error); } else continue; if (!failures) failures = g_ptr_array_new (); g_ptr_array_add (failures, (char *) entry->filename); } nm_clear_g_free (&entries); _connection_changed_process_all_dirty (self, TRUE, NM_SETTINGS_CONNECTION_INT_FLAGS_NONE, NM_SETTINGS_CONNECTION_INT_FLAGS_NONE, TRUE, NM_SETTINGS_CONNECTION_UPDATE_REASON_RESET_SYSTEM_SECRETS | NM_SETTINGS_CONNECTION_UPDATE_REASON_RESET_AGENT_SECRETS); for (iter = priv->plugins; iter; iter = iter->next) nm_settings_plugin_load_connections_done (iter->data); } if (failures) g_ptr_array_add (failures, NULL); nm_audit_log_connection_op (NM_AUDIT_OP_CONNS_LOAD, NULL, !failures, (op_result_str = g_strjoinv (",", (char **) filenames)), invocation, NULL); g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b^as)", (gboolean) (!failures), failures ? (const char **) failures->pdata : NM_PTRARRAY_EMPTY (const char *))); } static void impl_settings_reload_connections (NMDBusObject *obj, const NMDBusInterfaceInfoExtended *interface_info, const NMDBusMethodInfoExtended *method_info, GDBusConnection *connection, const char *sender, GDBusMethodInvocation *invocation, GVariant *parameters) { NMSettings *self = NM_SETTINGS (obj); /* The permission is already enforced by the D-Bus daemon, but we ensure * that the caller is still alive so that clients are forced to wait and * we'll be able to switch to polkit without breaking behavior. */ if (!nm_dbus_manager_ensure_uid (nm_dbus_object_get_manager (obj), invocation, G_MAXULONG, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED)) return; _plugin_connections_reload (self); nm_audit_log_connection_op (NM_AUDIT_OP_CONNS_RELOAD, NULL, TRUE, NULL, invocation, NULL); g_dbus_method_invocation_return_value (invocation, g_variant_new ("(b)", TRUE)); } /*****************************************************************************/ static void _clear_connections_cached_list (NMSettingsPrivate *priv) { if (!priv->connections_cached_list) return; nm_assert (priv->connections_len == NM_PTRARRAY_LEN (priv->connections_cached_list)); #if NM_MORE_ASSERTS /* set the pointer to a bogus value. This makes it more apparent * if somebody has a reference to the cached list and still uses * it. That is a bug, this code just tries to make it blow up * more eagerly. */ memset (priv->connections_cached_list, 0x43, sizeof (NMSettingsConnection *) * (priv->connections_len + 1)); #endif nm_clear_g_free (&priv->connections_cached_list); } static void impl_settings_list_connections (NMDBusObject *obj, const NMDBusInterfaceInfoExtended *interface_info, const NMDBusMethodInfoExtended *method_info, GDBusConnection *dbus_connection, const char *sender, GDBusMethodInvocation *invocation, GVariant *parameters) { NMSettings *self = NM_SETTINGS (obj); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gs_free const char **strv = NULL; strv = nm_dbus_utils_get_paths_for_clist (&priv->connections_lst_head, priv->connections_len, G_STRUCT_OFFSET (NMSettingsConnection, _connections_lst), TRUE); g_dbus_method_invocation_return_value (invocation, g_variant_new ("(^ao)", strv)); } NMSettingsConnection * nm_settings_get_connection_by_uuid (NMSettings *self, const char *uuid) { g_return_val_if_fail (NM_IS_SETTINGS (self), NULL); g_return_val_if_fail (uuid != NULL, NULL); return _sett_conn_entry_get_conn (_sett_conn_entries_get (self, uuid)); } const char * nm_settings_get_dbus_path_for_uuid (NMSettings *self, const char *uuid) { NMSettingsConnection *sett_conn; sett_conn = nm_settings_get_connection_by_uuid (self, uuid); if (!sett_conn) return NULL; return nm_dbus_object_get_path (NM_DBUS_OBJECT (sett_conn)); } static void impl_settings_get_connection_by_uuid (NMDBusObject *obj, const NMDBusInterfaceInfoExtended *interface_info, const NMDBusMethodInfoExtended *method_info, GDBusConnection *dbus_connection, const char *sender, GDBusMethodInvocation *invocation, GVariant *parameters) { NMSettings *self = NM_SETTINGS (obj); NMSettingsConnection *sett_conn; gs_unref_object NMAuthSubject *subject = NULL; GError *error = NULL; const char *uuid; g_variant_get (parameters, "(&s)", &uuid); sett_conn = nm_settings_get_connection_by_uuid (self, uuid); if (!sett_conn) { error = g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION, "No connection with the UUID was found."); goto error; } subject = nm_auth_subject_new_unix_process_from_context (invocation); if (!subject) { error = g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED, NM_UTILS_ERROR_MSG_REQ_UID_UKNOWN); goto error; } if (!nm_auth_is_subject_in_acl_set_error (nm_settings_connection_get_connection (sett_conn), subject, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED, &error)) goto error; g_dbus_method_invocation_return_value (invocation, g_variant_new ("(o)", nm_dbus_object_get_path (NM_DBUS_OBJECT (sett_conn)))); return; error: g_dbus_method_invocation_take_error (invocation, error); } /** * nm_settings_get_connections: * @self: the #NMSettings * @out_len: (out) (allow-none): returns the number of returned * connections. * * Returns: (transfer none): a list of NMSettingsConnections. The list is * unsorted and NULL terminated. The result is never %NULL, in case of no * connections, it returns an empty list. * The returned list is cached internally, only valid until the next * NMSettings operation. */ NMSettingsConnection *const* nm_settings_get_connections (NMSettings *self, guint *out_len) { NMSettingsPrivate *priv; NMSettingsConnection **v; NMSettingsConnection *con; guint i; g_return_val_if_fail (NM_IS_SETTINGS (self), NULL); priv = NM_SETTINGS_GET_PRIVATE (self); nm_assert (priv->connections_len == c_list_length (&priv->connections_lst_head)); if (G_UNLIKELY (!priv->connections_cached_list)) { v = g_new (NMSettingsConnection *, priv->connections_len + 1); i = 0; c_list_for_each_entry (con, &priv->connections_lst_head, _connections_lst) { nm_assert (i < priv->connections_len); v[i++] = con; } nm_assert (i == priv->connections_len); v[i] = NULL; priv->connections_cached_list = v; } NM_SET_OUT (out_len, priv->connections_len); return priv->connections_cached_list; } /** * nm_settings_get_connections_clone: * @self: the #NMSetting * @out_len: (allow-none): optional output argument * @func: caller-supplied function for filtering connections * @func_data: caller-supplied data passed to @func * @sort_compare_func: (allow-none): optional function pointer for * sorting the returned list. * @sort_data: user data for @sort_compare_func. * * Returns: (transfer container) (element-type NMSettingsConnection): * an NULL terminated array of #NMSettingsConnection objects that were * filtered by @func (or all connections if no filter was specified). * The order is arbitrary. * Caller is responsible for freeing the returned array with free(), * the contained values do not need to be unrefed. */ NMSettingsConnection ** nm_settings_get_connections_clone (NMSettings *self, guint *out_len, NMSettingsConnectionFilterFunc func, gpointer func_data, GCompareDataFunc sort_compare_func, gpointer sort_data) { NMSettingsConnection *const*list_cached; NMSettingsConnection **list; guint len, i, j; g_return_val_if_fail (NM_IS_SETTINGS (self), NULL); list_cached = nm_settings_get_connections (self, &len); #if NM_MORE_ASSERTS nm_assert (list_cached); for (i = 0; i < len; i++) nm_assert (NM_IS_SETTINGS_CONNECTION (list_cached[i])); nm_assert (!list_cached[i]); #endif list = g_new (NMSettingsConnection *, ((gsize) len + 1)); if (func) { for (i = 0, j = 0; i < len; i++) { if (func (self, list_cached[i], func_data)) list[j++] = list_cached[i]; } list[j] = NULL; len = j; } else memcpy (list, list_cached, sizeof (list[0]) * ((gsize) len + 1)); if ( len > 1 && sort_compare_func) { g_qsort_with_data (list, len, sizeof (NMSettingsConnection *), sort_compare_func, sort_data); } NM_SET_OUT (out_len, len); return list; } NMSettingsConnection * nm_settings_get_connection_by_path (NMSettings *self, const char *path) { NMSettingsPrivate *priv; NMSettingsConnection *connection; g_return_val_if_fail (NM_IS_SETTINGS (self), NULL); g_return_val_if_fail (path, NULL); priv = NM_SETTINGS_GET_PRIVATE (self); connection = nm_dbus_manager_lookup_object (nm_dbus_object_get_manager (NM_DBUS_OBJECT (self)), path); if ( !connection || !NM_IS_SETTINGS_CONNECTION (connection)) return NULL; nm_assert (c_list_contains (&priv->connections_lst_head, &connection->_connections_lst)); return connection; } gboolean nm_settings_has_connection (NMSettings *self, NMSettingsConnection *connection) { gboolean has; g_return_val_if_fail (NM_IS_SETTINGS (self), FALSE); g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (connection), FALSE); has = !c_list_is_empty (&connection->_connections_lst); nm_assert (has == nm_c_list_contains_entry (&NM_SETTINGS_GET_PRIVATE (self)->connections_lst_head, connection, _connections_lst)); nm_assert (({ NMSettingsConnection *candidate = NULL; const char *path; path = nm_dbus_object_get_path (NM_DBUS_OBJECT (connection)); if (path) candidate = nm_settings_get_connection_by_path (self, path); (has == (connection == candidate)); })); return has; } /*****************************************************************************/ static void add_plugin (NMSettings *self, NMSettingsPlugin *plugin, const char *pname, const char *path) { NMSettingsPrivate *priv; nm_assert (NM_IS_SETTINGS (self)); nm_assert (NM_IS_SETTINGS_PLUGIN (plugin)); nm_assert (pname); nm_assert (nm_streq0 (pname, nm_settings_plugin_get_plugin_name (plugin))); priv = NM_SETTINGS_GET_PRIVATE (self); nm_assert (!g_slist_find (priv->plugins, plugin)); priv->plugins = g_slist_append (priv->plugins, g_object_ref (plugin)); nm_shutdown_wait_obj_register_full (G_OBJECT (plugin), g_strdup_printf ("%s-settings-plugin", pname), TRUE); _LOGI ("Loaded settings plugin: %s (%s%s%s)", pname, NM_PRINT_FMT_QUOTED (path, "\"", path, "\"", "internal")); } static gboolean add_plugin_load_file (NMSettings *self, const char *pname, GError **error) { gs_free char *full_name = NULL; gs_free char *path = NULL; gs_unref_object NMSettingsPlugin *plugin = NULL; GModule *module; NMSettingsPluginFactoryFunc factory_func; struct stat st; int errsv; full_name = g_strdup_printf ("nm-settings-plugin-%s", pname); path = g_module_build_path (NMPLUGINDIR, full_name); if (stat (path, &st) != 0) { errsv = errno; _LOGW ("could not load plugin '%s' from file '%s': %s", pname, path, nm_strerror_native (errsv)); return TRUE; } if (!S_ISREG (st.st_mode)) { _LOGW ("could not load plugin '%s' from file '%s': not a file", pname, path); return TRUE; } if (st.st_uid != 0) { _LOGW ("could not load plugin '%s' from file '%s': file must be owned by root", pname, path); return TRUE; } if (st.st_mode & (S_IWGRP | S_IWOTH | S_ISUID)) { _LOGW ("could not load plugin '%s' from file '%s': invalid file permissions", pname, path); return TRUE; } module = g_module_open (path, G_MODULE_BIND_LOCAL); if (!module) { _LOGW ("could not load plugin '%s' from file '%s': %s", pname, path, g_module_error ()); return TRUE; } /* errors after this point are fatal, because we loaded the shared library already. */ if (!g_module_symbol (module, "nm_settings_plugin_factory", (gpointer) (&factory_func))) { g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED, "Could not find plugin '%s' factory function.", pname); g_module_close (module); return FALSE; } /* after accessing the plugin we cannot unload it anymore, because the glib * types cannot be properly unregistered. */ g_module_make_resident (module); plugin = (*factory_func) (); if (!NM_IS_SETTINGS_PLUGIN (plugin)) { g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED, "plugin '%s' returned invalid settings plugin", pname); return FALSE; } add_plugin (self, NM_SETTINGS_PLUGIN (plugin), pname, path); return TRUE; } static void add_plugin_keyfile (NMSettings *self) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); if (priv->keyfile_plugin) return; priv->keyfile_plugin = nms_keyfile_plugin_new (); add_plugin (self, NM_SETTINGS_PLUGIN (priv->keyfile_plugin), "keyfile", NULL); } static gboolean load_plugins (NMSettings *self, const char *const*plugins, GError **error) { const char *const*iter; gboolean success = TRUE; for (iter = plugins; iter && *iter; iter++) { const char *pname = *iter; if (!*pname || strchr (pname, '/')) { _LOGW ("ignore invalid plugin \"%s\"", pname); continue; } if (NM_IN_STRSET (pname, "ifcfg-suse", "ifnet", "ibft", "no-ibft")) { _LOGW ("skipping deprecated plugin %s", pname); continue; } /* keyfile plugin is built-in now */ if (nm_streq (pname, "keyfile")) { add_plugin_keyfile (self); continue; } if (nm_utils_strv_find_first ((char **) plugins, iter - plugins, pname) >= 0) { /* the plugin is already mentioned in the list previously. * Don't load a duplicate. */ continue; } success = add_plugin_load_file (self, pname, error); if (!success) break; } /* If keyfile plugin was not among configured plugins, add it as the last one */ if (success) add_plugin_keyfile (self); return success; } /*****************************************************************************/ static void pk_hostname_cb (NMAuthChain *chain, GDBusMethodInvocation *context, gpointer user_data) { NMSettings *self = NM_SETTINGS (user_data); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); NMAuthCallResult result; GError *error = NULL; const char *hostname; nm_assert (G_IS_DBUS_METHOD_INVOCATION (context)); c_list_unlink (nm_auth_chain_parent_lst_list (chain)); result = nm_auth_chain_get_result (chain, NM_AUTH_PERMISSION_SETTINGS_MODIFY_HOSTNAME); hostname = nm_auth_chain_get_data (chain, "hostname"); /* If our NMSettingsConnection is already gone, do nothing */ if (result != NM_AUTH_CALL_RESULT_YES) { error = g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_PERMISSION_DENIED, NM_UTILS_ERROR_MSG_INSUFF_PRIV); } else { if (!nm_hostname_manager_write_hostname (priv->hostname_manager, hostname)) { error = g_error_new_literal (NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED, "Saving the hostname failed."); } } nm_audit_log_control_op (NM_AUDIT_OP_HOSTNAME_SAVE, hostname, !error, nm_auth_chain_get_subject (chain), error ? error->message : NULL); if (error) g_dbus_method_invocation_take_error (context, error); else g_dbus_method_invocation_return_value (context, NULL); } static void impl_settings_save_hostname (NMDBusObject *obj, const NMDBusInterfaceInfoExtended *interface_info, const NMDBusMethodInfoExtended *method_info, GDBusConnection *connection, const char *sender, GDBusMethodInvocation *invocation, GVariant *parameters) { NMSettings *self = NM_SETTINGS (obj); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); NMAuthChain *chain; const char *hostname; const char *error_reason; int error_code; g_variant_get (parameters, "(&s)", &hostname); /* Minimal validation of the hostname */ if (!nm_hostname_manager_validate_hostname (hostname)) { error_code = NM_SETTINGS_ERROR_INVALID_HOSTNAME; error_reason = "The hostname was too long or contained invalid characters"; goto err; } chain = nm_auth_chain_new_context (invocation, pk_hostname_cb, self); if (!chain) { error_code = NM_SETTINGS_ERROR_PERMISSION_DENIED; error_reason = NM_UTILS_ERROR_MSG_REQ_AUTH_FAILED; goto err; } c_list_link_tail (&priv->auth_lst_head, nm_auth_chain_parent_lst_list (chain)); nm_auth_chain_add_call (chain, NM_AUTH_PERMISSION_SETTINGS_MODIFY_HOSTNAME, TRUE); nm_auth_chain_set_data (chain, "hostname", g_strdup (hostname), g_free); return; err: nm_audit_log_control_op (NM_AUDIT_OP_HOSTNAME_SAVE, hostname, FALSE, invocation, error_reason); g_dbus_method_invocation_return_error_literal (invocation, NM_SETTINGS_ERROR, error_code, error_reason); } /*****************************************************************************/ static void _hostname_changed_cb (NMHostnameManager *hostname_manager, GParamSpec *pspec, gpointer user_data) { _notify (user_data, PROP_HOSTNAME); } /*****************************************************************************/ static gboolean have_connection_for_device (NMSettings *self, NMDevice *device) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); NMSettingWired *s_wired; const char *setting_hwaddr; const char *perm_hw_addr; NMSettingsConnection *sett_conn; g_return_val_if_fail (NM_IS_SETTINGS (self), FALSE); perm_hw_addr = nm_device_get_permanent_hw_address (device); /* Find a wired connection locked to the given MAC address, if any */ c_list_for_each_entry (sett_conn, &priv->connections_lst_head, _connections_lst) { NMConnection *connection = nm_settings_connection_get_connection (sett_conn); NMSettingConnection *s_con = nm_connection_get_setting_connection (connection); const char *ctype; const char *iface; ctype = nm_setting_connection_get_connection_type (s_con); if (!NM_IN_STRSET (ctype, NM_SETTING_WIRED_SETTING_NAME, NM_SETTING_PPPOE_SETTING_NAME)) continue; if (!nm_device_check_connection_compatible (device, connection, NULL)) continue; if (nm_settings_connection_default_wired_get_device (sett_conn)) continue; if (NM_FLAGS_ANY (nm_settings_connection_get_flags (sett_conn), NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE)) continue; iface = nm_setting_connection_get_interface_name (s_con); if (!nm_streq0 (iface, nm_device_get_iface (device))) continue; s_wired = nm_connection_get_setting_wired (connection); if ( !s_wired && nm_streq (ctype, NM_SETTING_PPPOE_SETTING_NAME)) { /* No wired setting; therefore the PPPoE connection applies to any device */ return TRUE; } setting_hwaddr = nm_setting_wired_get_mac_address (s_wired); if (setting_hwaddr) { /* A connection mac-locked to this device */ if ( perm_hw_addr && nm_utils_hwaddr_matches (setting_hwaddr, -1, perm_hw_addr, -1)) return TRUE; } else { /* A connection that applies to any wired device */ return TRUE; } } /* See if there's a known non-NetworkManager configuration for the device */ if (nm_device_spec_match_list (device, priv->unrecognized_specs)) return TRUE; return FALSE; } static void default_wired_clear_tag (NMSettings *self, NMDevice *device, NMSettingsConnection *sett_conn, gboolean add_to_no_auto_default) { nm_assert (NM_IS_SETTINGS (self)); nm_assert (NM_IS_DEVICE (device)); nm_assert (NM_IS_SETTINGS_CONNECTION (sett_conn)); nm_assert (device == nm_settings_connection_default_wired_get_device (sett_conn)); nm_assert (sett_conn == g_object_get_qdata (G_OBJECT (device), _default_wired_connection_quark ())); _LOGT ("auto-default: forget association between %s (%s) and device %s (%s)", nm_settings_connection_get_uuid (sett_conn), nm_settings_connection_get_id (sett_conn), nm_device_get_iface (device), add_to_no_auto_default ? "persisted" : "temporary"); nm_settings_connection_default_wired_set_device (sett_conn, NULL); g_object_set_qdata (G_OBJECT (device), _default_wired_connection_quark (), NULL); if (add_to_no_auto_default) nm_config_set_no_auto_default_for_device (NM_SETTINGS_GET_PRIVATE (self)->config, device); } static void device_realized (NMDevice *device, GParamSpec *pspec, NMSettings *self) { gs_unref_object NMConnection *connection = NULL; NMSettingsPrivate *priv; NMSettingsConnection *added; GError *error = NULL; if (!nm_device_is_real (device)) return; g_signal_handlers_disconnect_by_func (device, G_CALLBACK (device_realized), self); priv = NM_SETTINGS_GET_PRIVATE (self); /* If the device isn't managed or it already has a default wired connection, * ignore it. */ if ( !nm_device_get_managed (device, FALSE) || g_object_get_qdata (G_OBJECT (device), _default_wired_connection_quark ()) || have_connection_for_device (self, device) || nm_config_get_no_auto_default_for_device (priv->config, device)) return; connection = nm_device_new_default_connection (device); if (!connection) return; _LOGT ("auto-default: creating in-memory connection %s (%s) for device %s", nm_connection_get_uuid (connection), nm_connection_get_id (connection), nm_device_get_iface (device)); nm_settings_add_connection (self, connection, NM_SETTINGS_CONNECTION_PERSIST_MODE_IN_MEMORY_ONLY, NM_SETTINGS_CONNECTION_ADD_REASON_NONE, NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED, &added, &error); if (!added) { if (!g_error_matches (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_UUID_EXISTS)) { _LOGW ("(%s) couldn't create default wired connection: %s", nm_device_get_iface (device), error->message); } g_clear_error (&error); return; } nm_settings_connection_default_wired_set_device (added, device); g_object_set_qdata (G_OBJECT (device), _default_wired_connection_quark (), added); _LOGI ("(%s): created default wired connection '%s'", nm_device_get_iface (device), nm_settings_connection_get_id (added)); } void nm_settings_device_added (NMSettings *self, NMDevice *device) { if (nm_device_is_real (device)) device_realized (device, NULL, self); else { /* FIXME(shutdown): we need to disconnect this signal handler during * shutdown. */ g_signal_connect_after (device, "notify::" NM_DEVICE_REAL, G_CALLBACK (device_realized), self); } } void nm_settings_device_removed (NMSettings *self, NMDevice *device, gboolean quitting) { NMSettingsConnection *connection; g_signal_handlers_disconnect_by_func (device, G_CALLBACK (device_realized), self); connection = g_object_get_qdata (G_OBJECT (device), _default_wired_connection_quark ()); if (connection) { default_wired_clear_tag (self, device, connection, FALSE); /* Don't delete the default wired connection on shutdown, so that it * remains up and can be assumed if NM starts again. */ if (quitting == FALSE) nm_settings_connection_delete (connection, TRUE); } } /*****************************************************************************/ static void session_monitor_changed_cb (NMSessionMonitor *session_monitor, NMSettings *self) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); NMSettingsConnection *const*list; guint i, len; guint generation; again: list = nm_settings_get_connections (self, &len); generation = priv->connections_generation; for (i = 0; i < len; i++) { gboolean is_visible; is_visible = nm_settings_connection_check_visibility (list[i], session_monitor); nm_settings_connection_set_flags (list[i], NM_SETTINGS_CONNECTION_INT_FLAGS_VISIBLE, is_visible); if (generation != priv->connections_generation) { /* the cached list was invalidated. Start again. * * Note that nm_settings_connection_recheck_visibility() will do nothing * if the visibility didn't change (including emitting no signals, * and not invalidating the list). * * Hence, for this to be an endless loop, the settings would have * to constantly change the visibility flag and also invalidate the list. */ goto again; } } } /*****************************************************************************/ G_GNUC_PRINTF (4, 5) static void _kf_db_log_fcn (NMKeyFileDB *kf_db, int syslog_level, gpointer user_data, const char *fmt, ...) { NMSettings *self = user_data; NMLogLevel level = nm_log_level_from_syslog (syslog_level); if (_NMLOG_ENABLED (level)) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); gs_free char *msg = NULL; va_list ap; const char *prefix; va_start (ap, fmt); msg = g_strdup_vprintf (fmt, ap); va_end (ap); if (priv->kf_db_timestamps == kf_db) prefix = "timestamps"; else if (priv->kf_db_seen_bssids == kf_db) prefix = "seen-bssids"; else { nm_assert_not_reached (); prefix = "???"; } _NMLOG (level, "[%s-keyfile]: %s", prefix, msg); } } static gboolean _kf_db_got_dirty_flush (NMSettings *self, gboolean is_timestamps) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); const char *prefix; NMKeyFileDB *kf_db; if (is_timestamps) { prefix = "timestamps"; kf_db = priv->kf_db_timestamps; priv->kf_db_flush_idle_id_timestamps = 0; } else { prefix = "seen-bssids"; kf_db = priv->kf_db_seen_bssids; priv->kf_db_flush_idle_id_seen_bssids = 0; } if (nm_key_file_db_is_dirty (kf_db)) nm_key_file_db_to_file (kf_db, FALSE); else { _LOGT ("[%s-keyfile]: skip saving changes to \"%s\"", prefix, nm_key_file_db_get_filename (kf_db)); } return G_SOURCE_REMOVE; } static gboolean _kf_db_got_dirty_flush_timestamps_cb (gpointer user_data) { return _kf_db_got_dirty_flush (user_data, TRUE); } static gboolean _kf_db_got_dirty_flush_seen_bssids_cb (gpointer user_data) { return _kf_db_got_dirty_flush (user_data, FALSE); } static void _kf_db_got_dirty_fcn (NMKeyFileDB *kf_db, gpointer user_data) { NMSettings *self = user_data; NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); GSourceFunc idle_func; guint *p_id; const char *prefix; if (priv->kf_db_timestamps == kf_db) { prefix = "timestamps"; p_id = &priv->kf_db_flush_idle_id_timestamps; idle_func = _kf_db_got_dirty_flush_timestamps_cb; } else if (priv->kf_db_seen_bssids == kf_db) { prefix = "seen-bssids"; p_id = &priv->kf_db_flush_idle_id_seen_bssids; idle_func = _kf_db_got_dirty_flush_seen_bssids_cb; } else { nm_assert_not_reached (); return; } if (*p_id != 0) return; _LOGT ("[%s-keyfile]: schedule flushing changes to disk", prefix); *p_id = g_idle_add_full (G_PRIORITY_LOW, idle_func, self, NULL); } void nm_settings_kf_db_write (NMSettings *self) { NMSettingsPrivate *priv; g_return_if_fail (NM_IS_SETTINGS (self)); priv = NM_SETTINGS_GET_PRIVATE (self); if (priv->kf_db_timestamps) nm_key_file_db_to_file (priv->kf_db_timestamps, TRUE); if (priv->kf_db_seen_bssids) nm_key_file_db_to_file (priv->kf_db_seen_bssids, TRUE); } /*****************************************************************************/ gboolean nm_settings_start (NMSettings *self, GError **error) { NMSettingsPrivate *priv; gs_strfreev char **plugins = NULL; GSList *iter; priv = NM_SETTINGS_GET_PRIVATE (self); nm_assert (!priv->started); priv->hostname_manager = g_object_ref (nm_hostname_manager_get ()); priv->kf_db_timestamps = nm_key_file_db_new (NMSTATEDIR "/timestamps", "timestamps", _kf_db_log_fcn, _kf_db_got_dirty_fcn, self); priv->kf_db_seen_bssids = nm_key_file_db_new (NMSTATEDIR "/seen-bssids", "seen-bssids", _kf_db_log_fcn, _kf_db_got_dirty_fcn, self); nm_key_file_db_start (priv->kf_db_timestamps); nm_key_file_db_start (priv->kf_db_seen_bssids); /* Load the plugins; fail if a plugin is not found. */ plugins = nm_config_data_get_plugins (nm_config_get_data_orig (priv->config), TRUE); if (!load_plugins (self, (const char *const*) plugins, error)) return FALSE; for (iter = priv->plugins; iter; iter = iter->next) { NMSettingsPlugin *plugin = NM_SETTINGS_PLUGIN (iter->data); g_signal_connect (plugin, NM_SETTINGS_PLUGIN_UNMANAGED_SPECS_CHANGED, G_CALLBACK (_plugin_unmanaged_specs_changed), self); g_signal_connect (plugin, NM_SETTINGS_PLUGIN_UNRECOGNIZED_SPECS_CHANGED, G_CALLBACK (_plugin_unrecognized_specs_changed), self); } _plugin_unmanaged_specs_changed (NULL, self); _plugin_unrecognized_specs_changed (NULL, self); _plugin_connections_reload (self); g_signal_connect (priv->hostname_manager, "notify::"NM_HOSTNAME_MANAGER_HOSTNAME, G_CALLBACK (_hostname_changed_cb), self); if (nm_hostname_manager_get_hostname (priv->hostname_manager)) _notify (self, PROP_HOSTNAME); priv->started = TRUE; _startup_complete_check (self, 0); /* FIXME(shutdown): we also need a nm_settings_stop() during shutdown. * * In particular, we need to remove all in-memory keyfiles from /run that are nm-generated. * alternatively, the nm-generated flag must also be persisted and loaded to /run. */ return TRUE; } /*****************************************************************************/ static void get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { NMSettings *self = NM_SETTINGS (object); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); const char **strv; switch (prop_id) { case PROP_UNMANAGED_SPECS: g_value_take_boxed (value, _nm_utils_slist_to_strv (nm_settings_get_unmanaged_specs (self), TRUE)); break; case PROP_HOSTNAME: g_value_set_string (value, priv->hostname_manager ? nm_hostname_manager_get_hostname (priv->hostname_manager) : NULL); break; case PROP_CAN_MODIFY: g_value_set_boolean (value, TRUE); break; case PROP_CONNECTIONS: strv = nm_dbus_utils_get_paths_for_clist (&priv->connections_lst_head, priv->connections_len, G_STRUCT_OFFSET (NMSettingsConnection, _connections_lst), TRUE); g_value_take_boxed (value, nm_utils_strv_make_deep_copied (strv)); break; case PROP_STARTUP_COMPLETE: g_value_set_boolean (value, !nm_settings_get_startup_complete_blocked_reason (self)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /*****************************************************************************/ static void nm_settings_init (NMSettings *self) { NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); c_list_init (&priv->auth_lst_head); c_list_init (&priv->connections_lst_head); c_list_init (&priv->sce_dirty_lst_head); priv->sce_idx = g_hash_table_new_full (nm_pstr_hash, nm_pstr_equal, NULL, (GDestroyNotify) _sett_conn_entry_free); priv->config = g_object_ref (nm_config_get ()); priv->agent_mgr = g_object_ref (nm_agent_manager_get ()); priv->platform = g_object_ref (NM_PLATFORM_GET); priv->session_monitor = g_object_ref (nm_session_monitor_get ()); g_signal_connect (priv->session_monitor, NM_SESSION_MONITOR_CHANGED, G_CALLBACK (session_monitor_changed_cb), self); } NMSettings * nm_settings_new (void) { return g_object_new (NM_TYPE_SETTINGS, NULL); } static void dispose (GObject *object) { NMSettings *self = NM_SETTINGS (object); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); CList *iter; nm_assert (c_list_is_empty (&priv->sce_dirty_lst_head)); nm_assert (g_hash_table_size (priv->sce_idx) == 0); nm_clear_g_source (&priv->startup_complete_timeout_id); nm_clear_g_signal_handler (priv->platform, &priv->startup_complete_platform_change_id); nm_clear_pointer (&priv->startup_complete_idx, g_hash_table_destroy); g_clear_object (&priv->startup_complete_blocked_by); while ((iter = c_list_first (&priv->auth_lst_head))) nm_auth_chain_destroy (nm_auth_chain_parent_lst_entry (iter)); if (priv->hostname_manager) { g_signal_handlers_disconnect_by_func (priv->hostname_manager, G_CALLBACK (_hostname_changed_cb), self); g_clear_object (&priv->hostname_manager); } if (priv->session_monitor) { g_signal_handlers_disconnect_by_func (priv->session_monitor, G_CALLBACK (session_monitor_changed_cb), self); g_clear_object (&priv->session_monitor); } G_OBJECT_CLASS (nm_settings_parent_class)->dispose (object); } static void finalize (GObject *object) { NMSettings *self = NM_SETTINGS (object); NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self); GSList *iter; _clear_connections_cached_list (priv); nm_assert (c_list_is_empty (&priv->connections_lst_head)); nm_assert (c_list_is_empty (&priv->sce_dirty_lst_head)); nm_assert (g_hash_table_size (priv->sce_idx) == 0); nm_clear_pointer (&priv->sce_idx, g_hash_table_destroy); g_slist_free_full (priv->unmanaged_specs, g_free); g_slist_free_full (priv->unrecognized_specs, g_free); while ((iter = priv->plugins)) { gs_unref_object NMSettingsPlugin *plugin = iter->data; priv->plugins = g_slist_delete_link (priv->plugins, iter); g_signal_handlers_disconnect_by_data (plugin, self); } g_clear_object (&priv->keyfile_plugin); g_clear_object (&priv->agent_mgr); nm_clear_g_source (&priv->kf_db_flush_idle_id_timestamps); nm_clear_g_source (&priv->kf_db_flush_idle_id_seen_bssids); nm_key_file_db_to_file (priv->kf_db_timestamps, FALSE); nm_key_file_db_to_file (priv->kf_db_seen_bssids, FALSE); nm_key_file_db_destroy (priv->kf_db_timestamps); nm_key_file_db_destroy (priv->kf_db_seen_bssids); G_OBJECT_CLASS (nm_settings_parent_class)->finalize (object); g_clear_object (&priv->config); g_clear_object (&priv->platform); } static const GDBusSignalInfo signal_info_new_connection = NM_DEFINE_GDBUS_SIGNAL_INFO_INIT ( "NewConnection", .args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("connection", "o"), ), ); static const GDBusSignalInfo signal_info_connection_removed = NM_DEFINE_GDBUS_SIGNAL_INFO_INIT ( "ConnectionRemoved", .args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("connection", "o"), ), ); static const NMDBusInterfaceInfoExtended interface_info_settings = { .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT ( NM_DBUS_INTERFACE_SETTINGS, .methods = NM_DEFINE_GDBUS_METHOD_INFOS ( NM_DEFINE_DBUS_METHOD_INFO_EXTENDED ( NM_DEFINE_GDBUS_METHOD_INFO_INIT ( "ListConnections", .out_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("connections", "ao"), ), ), .handle = impl_settings_list_connections, ), NM_DEFINE_DBUS_METHOD_INFO_EXTENDED ( NM_DEFINE_GDBUS_METHOD_INFO_INIT ( "GetConnectionByUuid", .in_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("uuid", "s"), ), .out_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("connection", "o"), ), ), .handle = impl_settings_get_connection_by_uuid, ), NM_DEFINE_DBUS_METHOD_INFO_EXTENDED ( NM_DEFINE_GDBUS_METHOD_INFO_INIT ( "AddConnection", .in_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("connection", "a{sa{sv}}"), ), .out_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("path", "o"), ), ), .handle = impl_settings_add_connection, ), NM_DEFINE_DBUS_METHOD_INFO_EXTENDED ( NM_DEFINE_GDBUS_METHOD_INFO_INIT ( "AddConnectionUnsaved", .in_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("connection", "a{sa{sv}}"), ), .out_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("path", "o"), ), ), .handle = impl_settings_add_connection_unsaved, ), NM_DEFINE_DBUS_METHOD_INFO_EXTENDED ( NM_DEFINE_GDBUS_METHOD_INFO_INIT ( "AddConnection2", .in_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("settings", "a{sa{sv}}"), NM_DEFINE_GDBUS_ARG_INFO ("flags", "u"), NM_DEFINE_GDBUS_ARG_INFO ("args", "a{sv}"), ), .out_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("path", "o"), NM_DEFINE_GDBUS_ARG_INFO ("result", "a{sv}"), ), ), .handle = impl_settings_add_connection2, ), NM_DEFINE_DBUS_METHOD_INFO_EXTENDED ( NM_DEFINE_GDBUS_METHOD_INFO_INIT ( "LoadConnections", .in_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("filenames", "as"), ), .out_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("status", "b"), NM_DEFINE_GDBUS_ARG_INFO ("failures", "as"), ), ), .handle = impl_settings_load_connections, ), NM_DEFINE_DBUS_METHOD_INFO_EXTENDED ( NM_DEFINE_GDBUS_METHOD_INFO_INIT ( "ReloadConnections", .out_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("status", "b"), ), ), .handle = impl_settings_reload_connections, ), NM_DEFINE_DBUS_METHOD_INFO_EXTENDED ( NM_DEFINE_GDBUS_METHOD_INFO_INIT ( "SaveHostname", .in_args = NM_DEFINE_GDBUS_ARG_INFOS ( NM_DEFINE_GDBUS_ARG_INFO ("hostname", "s"), ), ), .handle = impl_settings_save_hostname, ), ), .signals = NM_DEFINE_GDBUS_SIGNAL_INFOS ( &nm_signal_info_property_changed_legacy, &signal_info_new_connection, &signal_info_connection_removed, ), .properties = NM_DEFINE_GDBUS_PROPERTY_INFOS ( NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Connections", "ao", NM_SETTINGS_CONNECTIONS), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Hostname", "s", NM_SETTINGS_HOSTNAME), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("CanModify", "b", NM_SETTINGS_CAN_MODIFY), ), ), .legacy_property_changed = TRUE, }; static void nm_settings_class_init (NMSettingsClass *class) { GObjectClass *object_class = G_OBJECT_CLASS (class); NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS (class); dbus_object_class->export_path = NM_DBUS_EXPORT_PATH_STATIC (NM_DBUS_PATH_SETTINGS); dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS (&interface_info_settings); object_class->get_property = get_property; object_class->dispose = dispose; object_class->finalize = finalize; obj_properties[PROP_UNMANAGED_SPECS] = g_param_spec_boxed (NM_SETTINGS_UNMANAGED_SPECS, "", "", G_TYPE_STRV, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_HOSTNAME] = g_param_spec_string (NM_SETTINGS_HOSTNAME, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_CAN_MODIFY] = g_param_spec_boolean (NM_SETTINGS_CAN_MODIFY, "", "", FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_CONNECTIONS] = g_param_spec_boxed (NM_SETTINGS_CONNECTIONS, "", "", G_TYPE_STRV, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_STARTUP_COMPLETE] = g_param_spec_boolean (NM_SETTINGS_STARTUP_COMPLETE, "", "", FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties); signals[CONNECTION_ADDED] = g_signal_new (NM_SETTINGS_SIGNAL_CONNECTION_ADDED, G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, NM_TYPE_SETTINGS_CONNECTION); signals[CONNECTION_UPDATED] = g_signal_new (NM_SETTINGS_SIGNAL_CONNECTION_UPDATED, G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, NULL, G_TYPE_NONE, 2, NM_TYPE_SETTINGS_CONNECTION, G_TYPE_UINT); signals[CONNECTION_REMOVED] = g_signal_new (NM_SETTINGS_SIGNAL_CONNECTION_REMOVED, G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, NM_TYPE_SETTINGS_CONNECTION); signals[CONNECTION_FLAGS_CHANGED] = g_signal_new (NM_SETTINGS_SIGNAL_CONNECTION_FLAGS_CHANGED, G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, NM_TYPE_SETTINGS_CONNECTION); }