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NetworkManager/src/settings/nm-settings.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Søren Sandmann <sandmann@daimi.au.dk>
* Dan Williams <dcbw@redhat.com>
* Tambet Ingo <tambet@gmail.com>
* Copyright (C) 2007 - 2011 Red Hat, Inc.
* Copyright (C) 2008 Novell, Inc.
*/
#include "nm-default.h"
#include "nm-settings.h"
#include <unistd.h>
#include <sys/stat.h>
#include <gmodule.h>
#include <pwd.h>
#if HAVE_SELINUX
#include <selinux/selinux.h>
#endif
#include "nm-libnm-core-intern/nm-common-macros.h"
#include "nm-glib-aux/nm-keyfile-aux.h"
#include "nm-keyfile/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-libnm-core-intern/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)
static
NM_CACHED_QUARK_FCN ("default-wired-connection-blocked", _default_wired_connection_blocked_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_usec ();
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_usec ();
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,
* volatile, and external. */
sett_mask |= ( NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED
| NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL);
sett_flags &= ~( NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED
| NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL);
}
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
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL,
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),
NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL),
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));
nm_assert (!NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL));
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),
NM_FLAGS_HAS (sett_flags, NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL),
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_NM_GENERATED
| NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL)) {
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 persistent 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_HAS (nm_settings_connection_get_flags (sett_conn),
NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED));
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_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL)
&& 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
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL)) {
/* we update the nm-generated/volatile setting of a profile (which is inherently
* 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
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL));
sett_mask |= NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED
| NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL;
sett_flags &= ~( NM_SETTINGS_CONNECTION_INT_FLAGS_NM_GENERATED
| NM_SETTINGS_CONNECTION_INT_FLAGS_VOLATILE
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL);
}
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_dbus_manager_new_auth_subject_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);
nm_assert (!entry->error);
} 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);
/* We MUST return %TRUE here, otherwise older libnm versions might misbehave. */
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_dbus_manager_new_auth_subject_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_object_full (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);
NMSettingsConnection *sett_conn;
g_return_val_if_fail (NM_IS_SETTINGS (self), FALSE);
/* Find a wired connection matching for the device, if any */
c_list_for_each_entry (sett_conn, &priv->connections_lst_head, _connections_lst) {
NMConnection *connection = nm_settings_connection_get_connection (sett_conn);
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
| NM_SETTINGS_CONNECTION_INT_FLAGS_EXTERNAL))
continue;
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_CLASS (device)->new_default_connection
|| !nm_device_get_managed (device, FALSE)
|| g_object_get_qdata (G_OBJECT (device), _default_wired_connection_blocked_quark ()))
return;
/* we only check once whether to create the auto-default connection. If we reach this point,
* we mark the creation of the default-wired-connection as blocked. */
g_object_set_qdata (G_OBJECT (device), _default_wired_connection_blocked_quark (), device);
if (nm_config_get_no_auto_default_for_device (priv->config, device)) {
_LOGT ("auto-default: cannot create auto-default connection for device %s: disabled by \"no-auto-default\"",
nm_device_get_iface (device));
return;
}
if (have_connection_for_device (self, device)) {
_LOGT ("auto-default: cannot create auto-default connection for device %s: already has a profile",
nm_device_get_iface (device));
return;
}
connection = nm_device_new_default_connection (device);
if (!connection) {
_LOGT ("auto-default: cannot create auto-default connection for device %s",
nm_device_get_iface (device));
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);
}
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