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NetworkManager/src/settings/nm-settings-connection.c
Dan Winship df6706813a settings: port to gdbus
2015-08-10 09:41:26 -04:00

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager system settings service
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright 2008 Novell, Inc.
* Copyright 2008 - 2014 Red Hat, Inc.
*/
#include "config.h"
#include <string.h>
#include <nm-dbus-interface.h>
#include "nm-default.h"
#include "nm-settings-connection.h"
#include "nm-session-monitor.h"
#include "nm-auth-utils.h"
#include "nm-auth-subject.h"
#include "nm-agent-manager.h"
#include "NetworkManagerUtils.h"
#include "nm-core-internal.h"
#include "nm-audit-manager.h"
#include "nmdbus-settings-connection.h"
#define SETTINGS_TIMESTAMPS_FILE NMSTATEDIR "/timestamps"
#define SETTINGS_SEEN_BSSIDS_FILE NMSTATEDIR "/seen-bssids"
#define _LOG_DOMAIN LOGD_SETTINGS
#define _LOG_PREFIX_NAME "settings-connection"
#define _LOG(level, domain, self, ...) \
G_STMT_START { \
const NMLogLevel __level = (level); \
const NMLogDomain __domain = (domain); \
\
if (nm_logging_enabled (__level, __domain)) { \
char __prefix[128]; \
const char *__p_prefix = _LOG_PREFIX_NAME; \
const void *const __self = (self); \
\
if (__self) { \
const char *__uuid = nm_connection_get_uuid ((NMConnection *) __self); \
\
g_snprintf (__prefix, sizeof (__prefix), "%s[%p%s%s]", _LOG_PREFIX_NAME, __self, __uuid ? "," : "", __uuid ? __uuid : ""); \
__p_prefix = __prefix; \
} \
_nm_log (__level, __domain, 0, \
"%s: " _NM_UTILS_MACRO_FIRST (__VA_ARGS__), \
__p_prefix _NM_UTILS_MACRO_REST (__VA_ARGS__)); \
} \
} G_STMT_END
#define _LOG_LEVEL_ENABLED(level, domain) \
( nm_logging_enabled ((level), (domain)) )
#ifdef NM_MORE_LOGGING
#define _LOGT_ENABLED() _LOG_LEVEL_ENABLED (LOGL_TRACE, _LOG_DOMAIN)
#define _LOGT(...) _LOG (LOGL_TRACE, _LOG_DOMAIN, self, __VA_ARGS__)
#else
#define _LOGT_ENABLED() FALSE
#define _LOGT(...) G_STMT_START { if (FALSE) { _LOG (LOGL_TRACE, _LOG_DOMAIN, self, __VA_ARGS__); } } G_STMT_END
#endif
#define _LOGD(...) _LOG (LOGL_DEBUG, _LOG_DOMAIN, self, __VA_ARGS__)
#define _LOGI(...) _LOG (LOGL_INFO , _LOG_DOMAIN, self, __VA_ARGS__)
#define _LOGW(...) _LOG (LOGL_WARN , _LOG_DOMAIN, self, __VA_ARGS__)
#define _LOGE(...) _LOG (LOGL_ERR , _LOG_DOMAIN, self, __VA_ARGS__)
static void nm_settings_connection_connection_interface_init (NMConnectionInterface *iface);
G_DEFINE_TYPE_WITH_CODE (NMSettingsConnection, nm_settings_connection, NM_TYPE_EXPORTED_OBJECT,
G_IMPLEMENT_INTERFACE (NM_TYPE_CONNECTION, nm_settings_connection_connection_interface_init)
)
#define NM_SETTINGS_CONNECTION_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), \
NM_TYPE_SETTINGS_CONNECTION, \
NMSettingsConnectionPrivate))
enum {
PROP_0 = 0,
PROP_VISIBLE,
PROP_UNSAVED,
PROP_READY,
PROP_FLAGS,
PROP_FILENAME,
};
enum {
UPDATED,
REMOVED,
UPDATED_BY_USER,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
typedef struct {
gboolean removed;
NMAgentManager *agent_mgr;
guint session_changed_id;
NMSettingsConnectionFlags flags;
gboolean ready;
guint updated_idle_id;
GSList *pending_auths; /* List of pending authentication requests */
gboolean visible; /* Is this connection is visible by some session? */
GSList *reqs; /* in-progress secrets requests */
/* Caches secrets from on-disk connections; were they not cached any
* call to nm_connection_clear_secrets() wipes them out and we'd have
* to re-read them from disk which defeats the purpose of having the
* connection in-memory at all.
*/
NMConnection *system_secrets;
/* Caches secrets from agents during the activation process; if new system
* secrets are returned from an agent, they get written out to disk,
* triggering a re-read of the connection, which reads only system
* secrets, and would wipe out any agent-owned or not-saved secrets the
* agent also returned.
*/
NMConnection *agent_secrets;
guint64 timestamp; /* Up-to-date timestamp of connection use */
gboolean timestamp_set;
GHashTable *seen_bssids; /* Up-to-date BSSIDs that's been seen for the connection */
int autoconnect_retries;
gint32 autoconnect_retry_time;
NMDeviceStateReason autoconnect_blocked_reason;
char *filename;
} NMSettingsConnectionPrivate;
/**************************************************************/
/* Return TRUE to keep, FALSE to drop */
typedef gboolean (*ForEachSecretFunc) (NMSettingSecretFlags flags,
gpointer user_data);
static GVariant *
for_each_secret (NMConnection *self,
GVariant *secrets,
gboolean remove_non_secrets,
ForEachSecretFunc callback,
gpointer callback_data)
{
GVariantBuilder secrets_builder, setting_builder;
GVariantIter secrets_iter, *setting_iter;
const char *setting_name;
/* This function, given a dict of dicts representing new secrets of
* an NMConnection, walks through each toplevel dict (which represents a
* NMSetting), and for each setting, walks through that setting dict's
* properties. For each property that's a secret, it will check that
* secret's flags in the backing NMConnection object, and call a supplied
* callback.
*
* The one complexity is that the VPN setting's 'secrets' property is
* *also* a dict (since the key/value pairs are arbitrary and known
* only to the VPN plugin itself). That means we have three levels of
* dicts that we potentially have to traverse here. When we hit the
* VPN setting's 'secrets' property, we special-case that and iterate over
* each item in that 'secrets' dict, calling the supplied callback
* each time.
*/
g_return_val_if_fail (callback, NULL);
g_variant_iter_init (&secrets_iter, secrets);
g_variant_builder_init (&secrets_builder, NM_VARIANT_TYPE_CONNECTION);
while (g_variant_iter_next (&secrets_iter, "{&sa{sv}}", &setting_name, &setting_iter)) {
NMSetting *setting;
const char *secret_name;
GVariant *val;
setting = nm_connection_get_setting_by_name (self, setting_name);
if (setting == NULL) {
g_variant_iter_free (setting_iter);
continue;
}
g_variant_builder_init (&setting_builder, NM_VARIANT_TYPE_SETTING);
while (g_variant_iter_next (setting_iter, "{sv}", &secret_name, &val)) {
NMSettingSecretFlags secret_flags = NM_SETTING_SECRET_FLAG_NONE;
/* VPN secrets need slightly different treatment here since the
* "secrets" property is actually a hash table of secrets.
*/
if (NM_IS_SETTING_VPN (setting) && !g_strcmp0 (secret_name, NM_SETTING_VPN_SECRETS)) {
GVariantBuilder vpn_secrets_builder;
GVariantIter vpn_secrets_iter;
const char *vpn_secret_name, *secret;
/* Iterate through each secret from the VPN dict in the overall secrets dict */
g_variant_builder_init (&vpn_secrets_builder, G_VARIANT_TYPE ("a{ss}"));
g_variant_iter_init (&vpn_secrets_iter, val);
while (g_variant_iter_next (&vpn_secrets_iter, "{&s&s}", &vpn_secret_name, &secret)) {
if (!nm_setting_get_secret_flags (setting, vpn_secret_name, &secret_flags, NULL)) {
if (!remove_non_secrets)
g_variant_builder_add (&vpn_secrets_builder, "{ss}", vpn_secret_name, secret);
continue;
}
if (callback (secret_flags, callback_data))
g_variant_builder_add (&vpn_secrets_builder, "{ss}", vpn_secret_name, secret);
}
g_variant_builder_add (&setting_builder, "{sv}",
secret_name, g_variant_builder_end (&vpn_secrets_builder));
} else {
if (!nm_setting_get_secret_flags (setting, secret_name, &secret_flags, NULL)) {
if (!remove_non_secrets)
g_variant_builder_add (&setting_builder, "{sv}", secret_name, val);
continue;
}
if (callback (secret_flags, callback_data))
g_variant_builder_add (&setting_builder, "{sv}", secret_name, val);
}
g_variant_unref (val);
}
g_variant_iter_free (setting_iter);
g_variant_builder_add (&secrets_builder, "{sa{sv}}", setting_name, &setting_builder);
}
return g_variant_builder_end (&secrets_builder);
}
typedef gboolean (*FindSecretFunc) (NMSettingSecretFlags flags,
gpointer user_data);
typedef struct {
FindSecretFunc find_func;
gpointer find_func_data;
gboolean found;
} FindSecretData;
static gboolean
find_secret_for_each_func (NMSettingSecretFlags flags,
gpointer user_data)
{
FindSecretData *data = user_data;
if (!data->found)
data->found = data->find_func (flags, data->find_func_data);
return FALSE;
}
static gboolean
find_secret (NMConnection *self,
GVariant *secrets,
FindSecretFunc callback,
gpointer callback_data)
{
FindSecretData data;
GVariant *dummy;
data.find_func = callback;
data.find_func_data = callback_data;
data.found = FALSE;
dummy = for_each_secret (self, secrets, FALSE, find_secret_for_each_func, &data);
g_variant_unref (dummy);
return data.found;
}
/**************************************************************/
static void
set_visible (NMSettingsConnection *self, gboolean new_visible)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
if (new_visible == priv->visible)
return;
priv->visible = new_visible;
g_object_notify (G_OBJECT (self), NM_SETTINGS_CONNECTION_VISIBLE);
}
gboolean
nm_settings_connection_is_visible (NMSettingsConnection *self)
{
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), FALSE);
return NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->visible;
}
void
nm_settings_connection_recheck_visibility (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv;
NMSettingConnection *s_con;
guint32 num, i;
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (self));
priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
s_con = nm_connection_get_setting_connection (NM_CONNECTION (self));
g_assert (s_con);
/* Check every user in the ACL for a session */
num = nm_setting_connection_get_num_permissions (s_con);
if (num == 0) {
/* Visible to all */
set_visible (self, TRUE);
return;
}
for (i = 0; i < num; i++) {
const char *user;
uid_t uid;
if (!nm_setting_connection_get_permission (s_con, i, NULL, &user, NULL))
continue;
if (!nm_session_monitor_user_to_uid (user, &uid))
continue;
if (!nm_session_monitor_session_exists (uid, FALSE))
continue;
set_visible (self, TRUE);
return;
}
set_visible (self, FALSE);
}
static void
session_changed_cb (NMSessionMonitor *self, gpointer user_data)
{
nm_settings_connection_recheck_visibility (NM_SETTINGS_CONNECTION (user_data));
}
/**************************************************************/
/* Return TRUE if any active user in the connection's ACL has the given
* permission without having to authorize for it via PolicyKit. Connections
* visible to everyone automatically pass the check.
*/
gboolean
nm_settings_connection_check_permission (NMSettingsConnection *self,
const char *permission)
{
NMSettingsConnectionPrivate *priv;
NMSettingConnection *s_con;
guint32 num, i;
const char *puser;
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), FALSE);
priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
if (priv->visible == FALSE)
return FALSE;
s_con = nm_connection_get_setting_connection (NM_CONNECTION (self));
g_assert (s_con);
/* Check every user in the ACL for a session */
num = nm_setting_connection_get_num_permissions (s_con);
if (num == 0) {
/* Visible to all so it's OK to auto-activate */
return TRUE;
}
for (i = 0; i < num; i++) {
/* For each user get their secret agent and check if that agent has the
* required permission.
*
* FIXME: what if the user isn't running an agent? PolKit needs a bus
* name or a PID but if the user isn't running an agent they won't have
* either.
*/
if (nm_setting_connection_get_permission (s_con, i, NULL, &puser, NULL)) {
NMSecretAgent *agent = nm_agent_manager_get_agent_by_user (priv->agent_mgr, puser);
if (agent && nm_secret_agent_has_permission (agent, permission))
return TRUE;
}
}
return FALSE;
}
/**************************************************************/
static gboolean
secrets_filter_cb (NMSetting *setting,
const char *secret,
NMSettingSecretFlags flags,
gpointer user_data)
{
NMSettingSecretFlags filter_flags = GPOINTER_TO_UINT (user_data);
/* Returns TRUE to remove the secret */
/* Can't use bitops with SECRET_FLAG_NONE so handle that specifically */
if ( (flags == NM_SETTING_SECRET_FLAG_NONE)
&& (filter_flags == NM_SETTING_SECRET_FLAG_NONE))
return FALSE;
/* Otherwise if the secret has at least one of the desired flags keep it */
return (flags & filter_flags) ? FALSE : TRUE;
}
static void
update_system_secrets_cache (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
if (priv->system_secrets)
g_object_unref (priv->system_secrets);
priv->system_secrets = nm_simple_connection_new_clone (NM_CONNECTION (self));
/* Clear out non-system-owned and not-saved secrets */
nm_connection_clear_secrets_with_flags (priv->system_secrets,
secrets_filter_cb,
GUINT_TO_POINTER (NM_SETTING_SECRET_FLAG_NONE));
}
static void
update_agent_secrets_cache (NMSettingsConnection *self, NMConnection *new)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
NMSettingSecretFlags filter_flags = NM_SETTING_SECRET_FLAG_NOT_SAVED | NM_SETTING_SECRET_FLAG_AGENT_OWNED;
if (priv->agent_secrets)
g_object_unref (priv->agent_secrets);
priv->agent_secrets = nm_simple_connection_new_clone (new ? new : NM_CONNECTION (self));
/* Clear out non-system-owned secrets */
nm_connection_clear_secrets_with_flags (priv->agent_secrets,
secrets_filter_cb,
GUINT_TO_POINTER (filter_flags));
}
static void
secrets_cleared_cb (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
/* Clear agent secrets when connection's secrets are cleared since agent
* secrets are transient.
*/
if (priv->agent_secrets)
g_object_unref (priv->agent_secrets);
priv->agent_secrets = NULL;
}
static gboolean
emit_updated (NMSettingsConnection *self)
{
NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->updated_idle_id = 0;
g_signal_emit (self, signals[UPDATED], 0);
return FALSE;
}
static void
set_unsaved (NMSettingsConnection *self, gboolean now_unsaved)
{
NMSettingsConnectionFlags flags = nm_settings_connection_get_flags (self);
if (NM_FLAGS_HAS (flags, NM_SETTINGS_CONNECTION_FLAGS_UNSAVED) != !!now_unsaved) {
if (now_unsaved)
flags |= NM_SETTINGS_CONNECTION_FLAGS_UNSAVED;
else {
flags &= ~(NM_SETTINGS_CONNECTION_FLAGS_UNSAVED |
NM_SETTINGS_CONNECTION_FLAGS_NM_GENERATED |
NM_SETTINGS_CONNECTION_FLAGS_NM_GENERATED_ASSUMED);
}
nm_settings_connection_set_flags_all (self, flags);
}
}
static void
changed_cb (NMSettingsConnection *self, gpointer user_data)
{
gboolean update_unsaved = !!user_data;
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
if (update_unsaved)
set_unsaved (self, TRUE);
if (priv->updated_idle_id == 0)
priv->updated_idle_id = g_idle_add ((GSourceFunc) emit_updated, self);
}
/* Update the settings of this connection to match that of 'new_connection',
* taking care to make a private copy of secrets.
*/
gboolean
nm_settings_connection_replace_settings (NMSettingsConnection *self,
NMConnection *new_connection,
gboolean update_unsaved,
const char *log_diff_name,
GError **error)
{
NMSettingsConnectionPrivate *priv;
gboolean success = FALSE;
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), FALSE);
g_return_val_if_fail (NM_IS_CONNECTION (new_connection), FALSE);
priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
if (!nm_connection_normalize (new_connection, NULL, NULL, error))
return FALSE;
if ( nm_connection_get_path (NM_CONNECTION (self))
&& g_strcmp0 (nm_connection_get_uuid (NM_CONNECTION (self)), nm_connection_get_uuid (new_connection)) != 0) {
/* Updating the UUID is not allowed once the path is exported. */
g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED,
"connection %s cannot change the UUID from %s to %s", nm_connection_get_id (NM_CONNECTION (self)),
nm_connection_get_uuid (NM_CONNECTION (self)), nm_connection_get_uuid (new_connection));
return FALSE;
}
/* Do nothing if there's nothing to update */
if (nm_connection_compare (NM_CONNECTION (self),
new_connection,
NM_SETTING_COMPARE_FLAG_EXACT)) {
return TRUE;
}
/* Disconnect the changed signal to ensure we don't set Unsaved when
* it's not required.
*/
g_signal_handlers_block_by_func (self, G_CALLBACK (changed_cb), GUINT_TO_POINTER (TRUE));
if (log_diff_name)
nm_utils_log_connection_diff (new_connection, NM_CONNECTION (self), LOGL_DEBUG, LOGD_CORE, log_diff_name, "++ ");
nm_connection_replace_settings_from_connection (NM_CONNECTION (self), new_connection);
_LOGD ("replace settings from connection %p (%s)", new_connection, nm_connection_get_id (NM_CONNECTION (self)));
nm_settings_connection_set_flags (self,
NM_SETTINGS_CONNECTION_FLAGS_NM_GENERATED | NM_SETTINGS_CONNECTION_FLAGS_NM_GENERATED_ASSUMED,
FALSE);
/* Cache the just-updated system secrets in case something calls
* nm_connection_clear_secrets() and clears them.
*/
update_system_secrets_cache (self);
success = TRUE;
/* Add agent and always-ask secrets back; they won't necessarily be
* in the replacement connection data if it was eg reread from disk.
*/
if (priv->agent_secrets) {
GVariant *dict;
dict = nm_connection_to_dbus (priv->agent_secrets, NM_CONNECTION_SERIALIZE_ONLY_SECRETS);
if (dict) {
(void) nm_connection_update_secrets (NM_CONNECTION (self), NULL, dict, NULL);
g_variant_unref (dict);
}
}
nm_settings_connection_recheck_visibility (self);
/* Manually emit changed signal since we disconnected the handler, but
* only update Unsaved if the caller wanted us to.
*/
changed_cb (self, GUINT_TO_POINTER (update_unsaved));
g_signal_emit (self, signals[UPDATED_BY_USER], 0);
g_signal_handlers_unblock_by_func (self, G_CALLBACK (changed_cb), GUINT_TO_POINTER (TRUE));
return success;
}
static void
ignore_cb (NMSettingsConnection *self,
GError *error,
gpointer user_data)
{
}
/* Replaces the settings in this connection with those in 'new_connection'. If
* any changes are made, commits them to permanent storage and to any other
* subsystems watching this connection. Before returning, 'callback' is run
* with the given 'user_data' along with any errors encountered.
*/
static void
replace_and_commit (NMSettingsConnection *self,
NMConnection *new_connection,
NMSettingsConnectionCommitFunc callback,
gpointer user_data)
{
GError *error = NULL;
NMSettingsConnectionCommitReason commit_reason = NM_SETTINGS_CONNECTION_COMMIT_REASON_USER_ACTION;
if (g_strcmp0 (nm_connection_get_id (NM_CONNECTION (self)),
nm_connection_get_id (new_connection)) != 0)
commit_reason |= NM_SETTINGS_CONNECTION_COMMIT_REASON_ID_CHANGED;
if (nm_settings_connection_replace_settings (self, new_connection, TRUE, "replace-and-commit-disk", &error))
nm_settings_connection_commit_changes (self, commit_reason, callback, user_data);
else {
g_assert (error);
if (callback)
callback (self, error, user_data);
g_clear_error (&error);
}
}
void
nm_settings_connection_replace_and_commit (NMSettingsConnection *self,
NMConnection *new_connection,
NMSettingsConnectionCommitFunc callback,
gpointer user_data)
{
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (self));
g_return_if_fail (NM_IS_CONNECTION (new_connection));
NM_SETTINGS_CONNECTION_GET_CLASS (self)->replace_and_commit (self, new_connection, callback, user_data);
}
static void
commit_changes (NMSettingsConnection *self,
NMSettingsConnectionCommitReason commit_reason,
NMSettingsConnectionCommitFunc callback,
gpointer user_data)
{
/* Subclasses only call this function if the save was successful, so at
* this point the connection is synced to disk and no longer unsaved.
*/
set_unsaved (self, FALSE);
g_object_ref (self);
callback (self, NULL, user_data);
g_object_unref (self);
}
void
nm_settings_connection_commit_changes (NMSettingsConnection *self,
NMSettingsConnectionCommitReason commit_reason,
NMSettingsConnectionCommitFunc callback,
gpointer user_data)
{
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (self));
if (NM_SETTINGS_CONNECTION_GET_CLASS (self)->commit_changes) {
NM_SETTINGS_CONNECTION_GET_CLASS (self)->commit_changes (self,
commit_reason,
callback ? callback : ignore_cb,
user_data);
} else {
GError *error = g_error_new (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_FAILED,
"%s: %s:%d commit_changes() unimplemented", __func__, __FILE__, __LINE__);
if (callback)
callback (self, error, user_data);
g_error_free (error);
}
}
void
nm_settings_connection_delete (NMSettingsConnection *self,
NMSettingsConnectionDeleteFunc callback,
gpointer user_data)
{
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (self));
if (NM_SETTINGS_CONNECTION_GET_CLASS (self)->delete) {
NM_SETTINGS_CONNECTION_GET_CLASS (self)->delete (self,
callback ? callback : ignore_cb,
user_data);
} else {
GError *error = g_error_new (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_FAILED,
"%s: %s:%d delete() unimplemented", __func__, __FILE__, __LINE__);
if (callback)
callback (self, error, user_data);
g_error_free (error);
}
}
static void
remove_entry_from_db (NMSettingsConnection *self, const char* db_name)
{
GKeyFile *key_file;
const char *db_file;
if (strcmp (db_name, "timestamps") == 0)
db_file = SETTINGS_TIMESTAMPS_FILE;
else if (strcmp (db_name, "seen-bssids") == 0)
db_file = SETTINGS_SEEN_BSSIDS_FILE;
else
return;
key_file = g_key_file_new ();
if (g_key_file_load_from_file (key_file, db_file, G_KEY_FILE_KEEP_COMMENTS, NULL)) {
const char *connection_uuid;
char *data;
gsize len;
GError *error = NULL;
connection_uuid = nm_connection_get_uuid (NM_CONNECTION (self));
g_key_file_remove_key (key_file, db_name, connection_uuid, NULL);
data = g_key_file_to_data (key_file, &len, &error);
if (data) {
g_file_set_contents (db_file, data, len, &error);
g_free (data);
}
if (error) {
_LOGW ("error writing %s file '%s': %s", db_name, db_file, error->message);
g_error_free (error);
}
}
g_key_file_free (key_file);
}
static void
do_delete (NMSettingsConnection *self,
NMSettingsConnectionDeleteFunc callback,
gpointer user_data)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
NMConnection *for_agents;
g_object_ref (self);
set_visible (self, FALSE);
/* Tell agents to remove secrets for this connection */
for_agents = nm_simple_connection_new_clone (NM_CONNECTION (self));
nm_connection_clear_secrets (for_agents);
nm_agent_manager_delete_secrets (priv->agent_mgr, for_agents);
g_object_unref (for_agents);
/* Remove timestamp from timestamps database file */
remove_entry_from_db (self, "timestamps");
/* Remove connection from seen-bssids database file */
remove_entry_from_db (self, "seen-bssids");
nm_settings_connection_signal_remove (self);
callback (self, NULL, user_data);
g_object_unref (self);
}
/**************************************************************/
static gboolean
supports_secrets (NMSettingsConnection *self, const char *setting_name)
{
/* All secrets supported */
return TRUE;
}
typedef struct {
NMSettingSecretFlags required;
NMSettingSecretFlags forbidden;
} ForEachSecretFlags;
static gboolean
validate_secret_flags (NMSettingSecretFlags flags,
gpointer user_data)
{
ForEachSecretFlags *cmp_flags = user_data;
if (!NM_FLAGS_ALL (flags, cmp_flags->required))
return FALSE;
if (NM_FLAGS_ANY (flags, cmp_flags->forbidden))
return FALSE;
return TRUE;
}
static gboolean
secret_is_system_owned (NMSettingSecretFlags flags,
gpointer user_data)
{
return !NM_FLAGS_HAS (flags, NM_SETTING_SECRET_FLAG_AGENT_OWNED);
}
static void
new_secrets_commit_cb (NMSettingsConnection *self,
GError *error,
gpointer user_data)
{
if (error) {
_LOGW ("Error saving new secrets to backing storage: (%d) %s",
error->code, error->message ? error->message : "(unknown)");
}
}
static void
agent_secrets_done_cb (NMAgentManager *manager,
guint32 call_id,
const char *agent_dbus_owner,
const char *agent_username,
gboolean agent_has_modify,
const char *setting_name,
NMSecretAgentGetSecretsFlags flags,
GVariant *secrets,
GError *error,
gpointer user_data,
gpointer other_data2,
gpointer other_data3)
{
NMSettingsConnection *self = NM_SETTINGS_CONNECTION (user_data);
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
NMSettingsConnectionSecretsFunc callback = other_data2;
gpointer callback_data = other_data3;
GError *local = NULL;
GVariant *dict;
gboolean agent_had_system = FALSE;
ForEachSecretFlags cmp_flags = { NM_SETTING_SECRET_FLAG_NONE, NM_SETTING_SECRET_FLAG_NONE };
if (error) {
_LOGD ("(%s:%u) secrets request error: (%d) %s",
setting_name,
call_id,
error->code,
error->message ? error->message : "(unknown)");
callback (self, call_id, NULL, setting_name, error, callback_data);
return;
}
if (!nm_connection_get_setting_by_name (NM_CONNECTION (self), setting_name)) {
local = g_error_new (NM_CONNECTION_ERROR, NM_CONNECTION_ERROR_SETTING_NOT_FOUND,
"%s.%d - Connection didn't have requested setting '%s'.",
__FILE__, __LINE__, setting_name);
callback (self, call_id, NULL, setting_name, local, callback_data);
g_clear_error (&local);
return;
}
g_assert (secrets);
if (agent_dbus_owner) {
_LOGD ("(%s:%u) secrets returned from agent %s",
setting_name,
call_id,
agent_dbus_owner);
/* If the agent returned any system-owned secrets (initial connect and no
* secrets given when the connection was created, or something like that)
* make sure the agent's UID has the 'modify' permission before we use or
* save those system-owned secrets. If not, discard them and use the
* existing secrets, or fail the connection.
*/
agent_had_system = find_secret (NM_CONNECTION (self), secrets, secret_is_system_owned, NULL);
if (agent_had_system) {
if (flags == NM_SECRET_AGENT_GET_SECRETS_FLAG_NONE) {
/* No user interaction was allowed when requesting secrets; the
* agent is being bad. Remove system-owned secrets.
*/
_LOGD ("(%s:%u) interaction forbidden but agent %s returned system secrets",
setting_name,
call_id,
agent_dbus_owner);
cmp_flags.required |= NM_SETTING_SECRET_FLAG_AGENT_OWNED;
} else if (agent_has_modify == FALSE) {
/* Agent didn't successfully authenticate; clear system-owned secrets
* from the secrets the agent returned.
*/
_LOGD ("(%s:%u) agent failed to authenticate but provided system secrets",
setting_name,
call_id);
cmp_flags.required |= NM_SETTING_SECRET_FLAG_AGENT_OWNED;
}
}
} else {
_LOGD ("(%s:%u) existing secrets returned",
setting_name,
call_id);
}
_LOGD ("(%s:%u) secrets request completed",
setting_name,
call_id);
/* If no user interaction was allowed, make sure that no "unsaved" secrets
* came back. Unsaved secrets by definition require user interaction.
*/
if (flags == NM_SECRET_AGENT_GET_SECRETS_FLAG_NONE) {
cmp_flags.forbidden |= ( NM_SETTING_SECRET_FLAG_NOT_SAVED
| NM_SETTING_SECRET_FLAG_NOT_REQUIRED);
}
/* Update the connection with our existing secrets from backing storage */
nm_connection_clear_secrets (NM_CONNECTION (self));
dict = nm_connection_to_dbus (priv->system_secrets, NM_CONNECTION_SERIALIZE_ONLY_SECRETS);
if (!dict || nm_connection_update_secrets (NM_CONNECTION (self), setting_name, dict, &local)) {
GVariant *filtered_secrets;
/* Update the connection with the agent's secrets; by this point if any
* system-owned secrets exist in 'secrets' the agent that provided them
* will have been authenticated, so those secrets can replace the existing
* system secrets.
*/
filtered_secrets = for_each_secret (NM_CONNECTION (self), secrets, TRUE, validate_secret_flags, &cmp_flags);
if (nm_connection_update_secrets (NM_CONNECTION (self), setting_name, filtered_secrets, &local)) {
/* Now that all secrets are updated, copy and cache new secrets,
* then save them to backing storage.
*/
update_system_secrets_cache (self);
update_agent_secrets_cache (self, NULL);
/* Only save secrets to backing storage if the agent returned any
* new system secrets. If it didn't, then the secrets are agent-
* owned and there's no point to writing out the connection when
* nothing has changed, since agent-owned secrets don't get saved here.
*/
if (agent_had_system) {
_LOGD ("(%s:%u) saving new secrets to backing storage",
setting_name,
call_id);
nm_settings_connection_commit_changes (self, NM_SETTINGS_CONNECTION_COMMIT_REASON_NONE, new_secrets_commit_cb, NULL);
} else {
_LOGD ("(%s:%u) new agent secrets processed",
setting_name,
call_id);
}
g_variant_unref (filtered_secrets);
} else {
_LOGD ("(%s:%u) failed to update with agent secrets: (%d) %s",
setting_name,
call_id,
local ? local->code : -1,
(local && local->message) ? local->message : "(unknown)");
}
} else {
_LOGD ("(%s:%u) failed to update with existing secrets: (%d) %s",
setting_name,
call_id,
local ? local->code : -1,
(local && local->message) ? local->message : "(unknown)");
}
callback (self, call_id, agent_username, setting_name, local, callback_data);
g_clear_error (&local);
if (dict)
g_variant_unref (dict);
}
/**
* nm_settings_connection_get_secrets:
* @self: the #NMSettingsConnection
* @subject: the #NMAuthSubject originating the request
* @setting_name: the setting to return secrets for
* @flags: flags to modify the secrets request
* @hints: key names in @setting_name for which secrets may be required, or some
* other information about the request
* @callback: the function to call with returned secrets
* @callback_data: user data to pass to @callback
*
* Retrieves secrets from persistent storage and queries any secret agents for
* additional secrets.
*
* Returns: a call ID which may be used to cancel the ongoing secrets request
**/
guint32
nm_settings_connection_get_secrets (NMSettingsConnection *self,
NMAuthSubject *subject,
const char *setting_name,
NMSecretAgentGetSecretsFlags flags,
const char **hints,
NMSettingsConnectionSecretsFunc callback,
gpointer callback_data,
GError **error)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
GVariant *existing_secrets;
guint32 call_id = 0;
gs_free char *joined_hints = NULL;
/* Use priv->secrets to work around the fact that nm_connection_clear_secrets()
* will clear secrets on this object's settings.
*/
if (!priv->system_secrets) {
g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED,
"%s.%d - Internal error; secrets cache invalid.",
__FILE__, __LINE__);
return 0;
}
/* Make sure the request actually requests something we can return */
if (!nm_connection_get_setting_by_name (NM_CONNECTION (self), setting_name)) {
g_set_error (error, NM_CONNECTION_ERROR, NM_CONNECTION_ERROR_SETTING_NOT_FOUND,
"%s.%d - Connection didn't have requested setting '%s'.",
__FILE__, __LINE__, setting_name);
return 0;
}
existing_secrets = nm_connection_to_dbus (priv->system_secrets, NM_CONNECTION_SERIALIZE_ONLY_SECRETS);
if (existing_secrets)
g_variant_ref_sink (existing_secrets);
call_id = nm_agent_manager_get_secrets (priv->agent_mgr,
NM_CONNECTION (self),
subject,
existing_secrets,
setting_name,
flags,
hints,
agent_secrets_done_cb,
self,
callback,
callback_data);
if (existing_secrets)
g_variant_unref (existing_secrets);
_LOGD ("(%s:%u) secrets requested flags 0x%X hints '%s'",
setting_name,
call_id,
flags,
(hints && hints[0]) ? (joined_hints = g_strjoinv (",", (char **) hints)) : "(none)");
return call_id;
}
void
nm_settings_connection_cancel_secrets (NMSettingsConnection *self,
guint32 call_id)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
_LOGD ("(%u) secrets canceled",
call_id);
priv->reqs = g_slist_remove (priv->reqs, GUINT_TO_POINTER (call_id));
nm_agent_manager_cancel_secrets (priv->agent_mgr, call_id);
}
/**** User authorization **************************************/
typedef void (*AuthCallback) (NMSettingsConnection *self,
GDBusMethodInvocation *context,
NMAuthSubject *subject,
GError *error,
gpointer data);
static void
pk_auth_cb (NMAuthChain *chain,
GError *chain_error,
GDBusMethodInvocation *context,
gpointer user_data)
{
NMSettingsConnection *self = NM_SETTINGS_CONNECTION (user_data);
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
GError *error = NULL;
NMAuthCallResult result;
const char *perm;
AuthCallback callback;
gpointer callback_data;
NMAuthSubject *subject;
priv->pending_auths = g_slist_remove (priv->pending_auths, chain);
perm = nm_auth_chain_get_data (chain, "perm");
g_assert (perm);
result = nm_auth_chain_get_result (chain, perm);
/* If our NMSettingsConnection is already gone, do nothing */
if (chain_error) {
error = g_error_new (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_FAILED,
"Error checking authorization: %s",
chain_error->message ? chain_error->message : "(unknown)");
} else if (result != NM_AUTH_CALL_RESULT_YES) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
"Insufficient privileges.");
}
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, context, subject, error, callback_data);
g_clear_error (&error);
nm_auth_chain_unref (chain);
}
/**
* _new_auth_subject:
* @context: the D-Bus method invocation context
* @error: on failure, a #GError
*
* Creates an NMAuthSubject for the caller.
*
* Returns: the #NMAuthSubject on success, or %NULL on failure and sets @error
*/
static NMAuthSubject *
_new_auth_subject (GDBusMethodInvocation *context, GError **error)
{
NMAuthSubject *subject;
subject = nm_auth_subject_new_unix_process_from_context (context);
if (!subject) {
g_set_error_literal (error,
NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
"Unable to determine UID of request.");
}
return subject;
}
static void
auth_start (NMSettingsConnection *self,
GDBusMethodInvocation *context,
NMAuthSubject *subject,
const char *check_permission,
AuthCallback callback,
gpointer callback_data)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
NMAuthChain *chain;
GError *error = NULL;
char *error_desc = NULL;
g_return_if_fail (context != NULL);
g_return_if_fail (NM_IS_AUTH_SUBJECT (subject));
/* Ensure the caller can view this connection */
if (!nm_auth_is_subject_in_acl (NM_CONNECTION (self),
subject,
&error_desc)) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
error_desc);
g_free (error_desc);
callback (self, context, subject, error, callback_data);
g_clear_error (&error);
return;
}
if (!check_permission) {
/* Don't need polkit auth, automatic success */
callback (self, context, subject, NULL, callback_data);
return;
}
chain = nm_auth_chain_new_subject (subject, context, pk_auth_cb, self);
if (!chain) {
g_set_error_literal (&error,
NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
"Unable to authenticate the request.");
callback (self, context, subject, error, callback_data);
g_clear_error (&error);
return;
}
priv->pending_auths = g_slist_append (priv->pending_auths, chain);
nm_auth_chain_set_data (chain, "perm", (gpointer) check_permission, NULL);
nm_auth_chain_set_data (chain, "callback", callback, NULL);
nm_auth_chain_set_data (chain, "callback-data", callback_data, NULL);
nm_auth_chain_set_data (chain, "subject", g_object_ref (subject), g_object_unref);
nm_auth_chain_add_call (chain, check_permission, TRUE);
}
/**** DBus method handlers ************************************/
static gboolean
check_writable (NMConnection *self, GError **error)
{
NMSettingConnection *s_con;
g_return_val_if_fail (NM_IS_CONNECTION (self), FALSE);
s_con = nm_connection_get_setting_connection (self);
if (!s_con) {
g_set_error_literal (error,
NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_INVALID_CONNECTION,
"Connection did not have required 'connection' setting");
return FALSE;
}
/* If the connection is read-only, that has to be changed at the source of
* the problem (ex a system settings plugin that can't write connections out)
* instead of over D-Bus.
*/
if (nm_setting_connection_get_read_only (s_con)) {
g_set_error_literal (error,
NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_READ_ONLY_CONNECTION,
"Connection is read-only");
return FALSE;
}
return TRUE;
}
static void
get_settings_auth_cb (NMSettingsConnection *self,
GDBusMethodInvocation *context,
NMAuthSubject *subject,
GError *error,
gpointer data)
{
if (error)
g_dbus_method_invocation_return_gerror (context, error);
else {
GVariant *settings;
NMConnection *dupl_con;
NMSettingConnection *s_con;
NMSettingWireless *s_wifi;
guint64 timestamp = 0;
char **bssids;
dupl_con = nm_simple_connection_new_clone (NM_CONNECTION (self));
g_assert (dupl_con);
/* Timestamp is not updated in connection's 'timestamp' property,
* because it would force updating the connection and in turn
* writing to /etc periodically, which we want to avoid. Rather real
* timestamps are kept track of in a private variable. So, substitute
* timestamp property with the real one here before returning the settings.
*/
nm_settings_connection_get_timestamp (self, &timestamp);
if (timestamp) {
s_con = nm_connection_get_setting_connection (NM_CONNECTION (dupl_con));
g_assert (s_con);
g_object_set (s_con, NM_SETTING_CONNECTION_TIMESTAMP, timestamp, NULL);
}
/* Seen BSSIDs are not updated in 802-11-wireless 'seen-bssids' property
* from the same reason as timestamp. Thus we put it here to GetSettings()
* return settings too.
*/
bssids = nm_settings_connection_get_seen_bssids (self);
s_wifi = nm_connection_get_setting_wireless (NM_CONNECTION (dupl_con));
if (bssids && bssids[0] && s_wifi)
g_object_set (s_wifi, NM_SETTING_WIRELESS_SEEN_BSSIDS, bssids, NULL);
g_free (bssids);
/* Secrets should *never* be returned by the GetSettings method, they
* get returned by the GetSecrets method which can be better
* protected against leakage of secrets to unprivileged callers.
*/
settings = nm_connection_to_dbus (NM_CONNECTION (dupl_con), NM_CONNECTION_SERIALIZE_NO_SECRETS);
g_assert (settings);
g_dbus_method_invocation_return_value (context,
g_variant_new ("(@a{sa{sv}})", settings));
g_object_unref (dupl_con);
}
}
static void
impl_settings_connection_get_settings (NMSettingsConnection *self,
GDBusMethodInvocation *context)
{
NMAuthSubject *subject;
GError *error = NULL;
subject = _new_auth_subject (context, &error);
if (subject) {
auth_start (self, context, subject, NULL, get_settings_auth_cb, NULL);
g_object_unref (subject);
} else
g_dbus_method_invocation_take_error (context, error);
}
typedef struct {
GDBusMethodInvocation *context;
NMAgentManager *agent_mgr;
NMAuthSubject *subject;
NMConnection *new_settings;
gboolean save_to_disk;
} UpdateInfo;
typedef struct {
GDBusMethodInvocation *context;
NMAuthSubject *subject;
} CallbackInfo;
static void
has_some_secrets_cb (NMSetting *setting,
const char *key,
const GValue *value,
GParamFlags flags,
gpointer user_data)
{
GParamSpec *pspec;
if (NM_IS_SETTING_VPN (setting)) {
if (nm_setting_vpn_get_num_secrets (NM_SETTING_VPN(setting)))
*((gboolean *) user_data) = TRUE;
return;
}
pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (G_OBJECT (setting)), key);
if (pspec) {
if ( (flags & NM_SETTING_PARAM_SECRET)
&& !g_param_value_defaults (pspec, (GValue *)value))
*((gboolean *) user_data) = TRUE;
}
}
static gboolean
any_secrets_present (NMConnection *self)
{
gboolean has_secrets = FALSE;
nm_connection_for_each_setting_value (self, has_some_secrets_cb, &has_secrets);
return has_secrets;
}
static void
cached_secrets_to_connection (NMSettingsConnection *self, NMConnection *connection)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
GVariant *secrets_dict;
if (priv->agent_secrets) {
secrets_dict = nm_connection_to_dbus (priv->agent_secrets, NM_CONNECTION_SERIALIZE_ONLY_SECRETS);
if (secrets_dict) {
(void) nm_connection_update_secrets (connection, NULL, secrets_dict, NULL);
g_variant_unref (secrets_dict);
}
}
if (priv->system_secrets) {
secrets_dict = nm_connection_to_dbus (priv->system_secrets, NM_CONNECTION_SERIALIZE_ONLY_SECRETS);
if (secrets_dict) {
(void) nm_connection_update_secrets (connection, NULL, secrets_dict, NULL);
g_variant_unref (secrets_dict);
}
}
}
static void
update_complete (NMSettingsConnection *self,
UpdateInfo *info,
GError *error)
{
if (error)
g_dbus_method_invocation_return_gerror (info->context, error);
else
g_dbus_method_invocation_return_value (info->context, NULL);
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_UPDATE, NM_CONNECTION (self), !error,
info->subject, error ? error->message : NULL);
g_clear_object (&info->subject);
g_clear_object (&info->agent_mgr);
g_clear_object (&info->new_settings);
memset (info, 0, sizeof (*info));
g_free (info);
}
static void
con_update_cb (NMSettingsConnection *self,
GError *error,
gpointer user_data)
{
UpdateInfo *info = user_data;
NMConnection *for_agent;
if (!error) {
/* Dupe the connection so we can clear out non-agent-owned secrets,
* as agent-owned secrets are the only ones we send back be saved.
* Only send secrets to agents of the same UID that called update too.
*/
for_agent = nm_simple_connection_new_clone (NM_CONNECTION (self));
nm_connection_clear_secrets_with_flags (for_agent,
secrets_filter_cb,
GUINT_TO_POINTER (NM_SETTING_SECRET_FLAG_AGENT_OWNED));
nm_agent_manager_save_secrets (info->agent_mgr, for_agent, info->subject);
g_object_unref (for_agent);
}
update_complete (self, info, error);
}
static void
update_auth_cb (NMSettingsConnection *self,
GDBusMethodInvocation *context,
NMAuthSubject *subject,
GError *error,
gpointer data)
{
UpdateInfo *info = data;
GError *local = NULL;
if (error) {
update_complete (self, info, error);
return;
}
if (!any_secrets_present (info->new_settings)) {
/* If the new connection has no secrets, we do not want to remove all
* secrets, rather we keep all the existing ones. Do that by merging
* them in to the new connection.
*/
cached_secrets_to_connection (self, info->new_settings);
} else {
/* Cache the new secrets from the agent, as stuff like inotify-triggered
* changes to connection's backing config files will blow them away if
* they're in the main connection.
*/
update_agent_secrets_cache (self, info->new_settings);
}
if (info->save_to_disk) {
nm_settings_connection_replace_and_commit (self,
info->new_settings,
con_update_cb,
info);
} else {
if (!nm_settings_connection_replace_settings (self, info->new_settings, TRUE, "replace-and-commit-memory", &local))
g_assert (local);
con_update_cb (self, local, info);
g_clear_error (&local);
}
}
static const char *
get_update_modify_permission (NMConnection *old, NMConnection *new)
{
NMSettingConnection *s_con;
guint32 orig_num = 0, new_num = 0;
s_con = nm_connection_get_setting_connection (old);
g_assert (s_con);
orig_num = nm_setting_connection_get_num_permissions (s_con);
s_con = nm_connection_get_setting_connection (new);
g_assert (s_con);
new_num = nm_setting_connection_get_num_permissions (s_con);
/* If the caller is the only user in either connection's permissions, then
* we use the 'modify.own' permission instead of 'modify.system'.
*/
if (orig_num == 1 && new_num == 1)
return NM_AUTH_PERMISSION_SETTINGS_MODIFY_OWN;
/* If the update request affects more than just the caller (ie if the old
* settings were system-wide, or the new ones are), require 'modify.system'.
*/
return NM_AUTH_PERMISSION_SETTINGS_MODIFY_SYSTEM;
}
static void
impl_settings_connection_update_helper (NMSettingsConnection *self,
GDBusMethodInvocation *context,
GVariant *new_settings,
gboolean save_to_disk)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
NMAuthSubject *subject = NULL;
NMConnection *tmp = NULL;
GError *error = NULL;
UpdateInfo *info;
const char *permission;
char *error_desc = NULL;
g_assert (new_settings != NULL || save_to_disk == TRUE);
/* If the connection is read-only, that has to be changed at the source of
* the problem (ex a system settings plugin that can't write connections out)
* instead of over D-Bus.
*/
if (!check_writable (NM_CONNECTION (self), &error))
goto error;
/* Check if the settings are valid first */
if (new_settings) {
tmp = nm_simple_connection_new_from_dbus (new_settings, &error);
if (!tmp)
goto error;
}
subject = _new_auth_subject (context, &error);
if (!subject)
goto error;
/* And that the new connection settings will be visible to the user
* that's sending the update request. You can't make a connection
* invisible to yourself.
*/
if (!nm_auth_is_subject_in_acl (tmp ? tmp : NM_CONNECTION (self),
subject,
&error_desc)) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
error_desc);
g_free (error_desc);
goto error;
}
info = g_malloc0 (sizeof (*info));
info->context = context;
info->agent_mgr = g_object_ref (priv->agent_mgr);
info->subject = subject;
info->save_to_disk = save_to_disk;
info->new_settings = tmp;
permission = get_update_modify_permission (NM_CONNECTION (self),
tmp ? tmp : NM_CONNECTION (self));
auth_start (self, context, subject, permission, update_auth_cb, info);
return;
error:
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_UPDATE, NM_CONNECTION (self), FALSE, subject,
error->message);
g_clear_object (&tmp);
g_clear_object (&subject);
g_dbus_method_invocation_take_error (context, error);
}
static void
impl_settings_connection_update (NMSettingsConnection *self,
GDBusMethodInvocation *context,
GVariant *new_settings)
{
impl_settings_connection_update_helper (self, context, new_settings, TRUE);
}
static void
impl_settings_connection_update_unsaved (NMSettingsConnection *self,
GDBusMethodInvocation *context,
GVariant *new_settings)
{
impl_settings_connection_update_helper (self, context, new_settings, FALSE);
}
static void
impl_settings_connection_save (NMSettingsConnection *self,
GDBusMethodInvocation *context)
{
/* Do nothing if the connection is already synced with disk */
if (nm_settings_connection_get_unsaved (self))
impl_settings_connection_update_helper (self, context, NULL, TRUE);
else
g_dbus_method_invocation_return_value (context, NULL);
}
static void
con_delete_cb (NMSettingsConnection *self,
GError *error,
gpointer user_data)
{
CallbackInfo *info = user_data;
if (error)
g_dbus_method_invocation_return_gerror (info->context, error);
else
g_dbus_method_invocation_return_value (info->context, NULL);
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_DELETE, NM_CONNECTION (self),
!error, info->subject, error ? error->message : NULL);
g_free (info);
}
static void
delete_auth_cb (NMSettingsConnection *self,
GDBusMethodInvocation *context,
NMAuthSubject *subject,
GError *error,
gpointer data)
{
CallbackInfo *info;
if (error) {
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_DELETE, NM_CONNECTION (self), FALSE, subject,
error->message);
g_dbus_method_invocation_return_gerror (context, error);
return;
}
info = g_malloc0 (sizeof (*info));
info->context = context;
info->subject = subject;
nm_settings_connection_delete (self, con_delete_cb, info);
}
static const char *
get_modify_permission_basic (NMSettingsConnection *self)
{
NMSettingConnection *s_con;
/* 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 (NM_CONNECTION (self));
g_assert (s_con);
if (nm_setting_connection_get_num_permissions (s_con) == 1)
return NM_AUTH_PERMISSION_SETTINGS_MODIFY_OWN;
return NM_AUTH_PERMISSION_SETTINGS_MODIFY_SYSTEM;
}
static void
impl_settings_connection_delete (NMSettingsConnection *self,
GDBusMethodInvocation *context)
{
NMAuthSubject *subject = NULL;
GError *error = NULL;
if (!check_writable (NM_CONNECTION (self), &error))
goto out_err;
subject = _new_auth_subject (context, &error);
if (subject) {
auth_start (self, context, subject, get_modify_permission_basic (self), delete_auth_cb, NULL);
g_object_unref (subject);
} else
goto out_err;
return;
out_err:
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_DELETE, NM_CONNECTION (self), FALSE, subject, error->message);
g_dbus_method_invocation_take_error (context, error);
}
/**************************************************************/
static void
dbus_get_agent_secrets_cb (NMSettingsConnection *self,
guint32 call_id,
const char *agent_username,
const char *setting_name,
GError *error,
gpointer user_data)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
GDBusMethodInvocation *context = user_data;
GVariant *dict;
priv->reqs = g_slist_remove (priv->reqs, GUINT_TO_POINTER (call_id));
if (error)
g_dbus_method_invocation_return_gerror (context, error);
else {
/* Return secrets from agent and backing storage to the D-Bus caller;
* nm_settings_connection_get_secrets() will have updated itself with
* secrets from backing storage and those returned from the agent
* by the time we get here.
*/
dict = nm_connection_to_dbus (NM_CONNECTION (self), NM_CONNECTION_SERIALIZE_ONLY_SECRETS);
if (!dict)
dict = g_variant_new_array (G_VARIANT_TYPE ("{sa{sv}}"), NULL, 0);
g_dbus_method_invocation_return_value (context, g_variant_new ("(@a{s{a{sv}}})", dict));
}
}
static void
dbus_get_secrets_auth_cb (NMSettingsConnection *self,
GDBusMethodInvocation *context,
NMAuthSubject *subject,
GError *error,
gpointer user_data)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
char *setting_name = user_data;
guint32 call_id = 0;
GError *local = NULL;
if (!error) {
call_id = nm_settings_connection_get_secrets (self,
subject,
setting_name,
NM_SECRET_AGENT_GET_SECRETS_FLAG_USER_REQUESTED
| NM_SECRET_AGENT_GET_SECRETS_FLAG_NO_ERRORS,
NULL,
dbus_get_agent_secrets_cb,
context,
&local);
if (call_id > 0) {
/* track the request and wait for the callback */
priv->reqs = g_slist_append (priv->reqs, GUINT_TO_POINTER (call_id));
}
}
if (error || local) {
g_dbus_method_invocation_return_gerror (context, error ? error : local);
g_clear_error (&local);
}
g_free (setting_name);
}
static void
impl_settings_connection_get_secrets (NMSettingsConnection *self,
GDBusMethodInvocation *context,
const gchar *setting_name)
{
NMAuthSubject *subject;
GError *error = NULL;
subject = _new_auth_subject (context, &error);
if (subject) {
auth_start (self,
context,
subject,
get_modify_permission_basic (self),
dbus_get_secrets_auth_cb,
g_strdup (setting_name));
g_object_unref (subject);
} else
g_dbus_method_invocation_take_error (context, error);
}
static void
clear_secrets_cb (NMSettingsConnection *self,
GError *error,
gpointer user_data)
{
CallbackInfo *info = user_data;
if (error)
g_dbus_method_invocation_return_gerror (info->context, error);
else
g_dbus_method_invocation_return_value (info->context, NULL);
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_CLEAR_SECRETS, NM_CONNECTION (self),
!error, info->subject, error ? error->message : NULL);
g_free (info);
}
static void
dbus_clear_secrets_auth_cb (NMSettingsConnection *self,
GDBusMethodInvocation *context,
NMAuthSubject *subject,
GError *error,
gpointer user_data)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
CallbackInfo *info;
if (error) {
g_dbus_method_invocation_return_gerror (context, error);
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_CLEAR_SECRETS, NM_CONNECTION (self),
FALSE, subject, error->message);
} else {
/* Clear secrets in connection and caches */
nm_connection_clear_secrets (NM_CONNECTION (self));
if (priv->system_secrets)
nm_connection_clear_secrets (priv->system_secrets);
if (priv->agent_secrets)
nm_connection_clear_secrets (priv->agent_secrets);
/* Tell agents to remove secrets for this connection */
nm_agent_manager_delete_secrets (priv->agent_mgr, NM_CONNECTION (self));
info = g_malloc0 (sizeof (*info));
info->context = context;
info->subject = subject;
nm_settings_connection_commit_changes (self, NM_SETTINGS_CONNECTION_COMMIT_REASON_NONE, clear_secrets_cb, info);
}
}
static void
impl_settings_connection_clear_secrets (NMSettingsConnection *self,
GDBusMethodInvocation *context)
{
NMAuthSubject *subject;
GError *error = NULL;
subject = _new_auth_subject (context, &error);
if (subject) {
auth_start (self,
context,
subject,
get_modify_permission_basic (self),
dbus_clear_secrets_auth_cb,
NULL);
g_object_unref (subject);
} else {
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_CLEAR_SECRETS, NM_CONNECTION (self),
FALSE, NULL, error->message);
g_dbus_method_invocation_take_error (context, error);
}
}
/**************************************************************/
void
nm_settings_connection_signal_remove (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
if (priv->removed)
g_return_if_reached ();
priv->removed = TRUE;
/* Emit removed first */
g_signal_emit_by_name (self, NM_SETTINGS_CONNECTION_REMOVED);
/* And unregister last to ensure the removed signal goes out before
* we take the connection off the bus.
*/
nm_exported_object_unexport (NM_EXPORTED_OBJECT (self));
}
gboolean
nm_settings_connection_get_unsaved (NMSettingsConnection *self)
{
return NM_FLAGS_HAS (nm_settings_connection_get_flags (self), NM_SETTINGS_CONNECTION_FLAGS_UNSAVED);
}
/**************************************************************/
NMSettingsConnectionFlags
nm_settings_connection_get_flags (NMSettingsConnection *self)
{
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), NM_SETTINGS_CONNECTION_FLAGS_NONE);
return NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->flags;
}
NMSettingsConnectionFlags
nm_settings_connection_set_flags (NMSettingsConnection *self, NMSettingsConnectionFlags flags, gboolean set)
{
NMSettingsConnectionFlags new_flags;
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), NM_SETTINGS_CONNECTION_FLAGS_NONE);
g_return_val_if_fail ((flags & ~NM_SETTINGS_CONNECTION_FLAGS_ALL) == 0, NM_SETTINGS_CONNECTION_FLAGS_NONE);
new_flags = NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->flags;
if (set)
new_flags |= flags;
else
new_flags &= ~flags;
return nm_settings_connection_set_flags_all (self, new_flags);
}
NMSettingsConnectionFlags
nm_settings_connection_set_flags_all (NMSettingsConnection *self, NMSettingsConnectionFlags flags)
{
NMSettingsConnectionPrivate *priv;
NMSettingsConnectionFlags old_flags;
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), NM_SETTINGS_CONNECTION_FLAGS_NONE);
g_return_val_if_fail ((flags & ~NM_SETTINGS_CONNECTION_FLAGS_ALL) == 0, NM_SETTINGS_CONNECTION_FLAGS_NONE);
priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
old_flags = priv->flags;
if (old_flags != flags) {
priv->flags = flags;
g_object_notify (G_OBJECT (self), NM_SETTINGS_CONNECTION_FLAGS);
if (NM_FLAGS_HAS (old_flags, NM_SETTINGS_CONNECTION_FLAGS_UNSAVED) != NM_FLAGS_HAS (flags, NM_SETTINGS_CONNECTION_FLAGS_UNSAVED))
g_object_notify (G_OBJECT (self), NM_SETTINGS_CONNECTION_UNSAVED);
}
return old_flags;
}
/*************************************************************/
/**
* nm_settings_connection_get_timestamp:
* @self: the #NMSettingsConnection
* @out_timestamp: the connection's timestamp
*
* Returns the time (in seconds since the Unix epoch) when the connection
* was last successfully activated.
*
* Returns: %TRUE if the timestamp has ever been set, otherwise %FALSE.
**/
gboolean
nm_settings_connection_get_timestamp (NMSettingsConnection *self,
guint64 *out_timestamp)
{
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), FALSE);
if (out_timestamp)
*out_timestamp = NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->timestamp;
return NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->timestamp_set;
}
/**
* nm_settings_connection_update_timestamp:
* @self: the #NMSettingsConnection
* @timestamp: timestamp to set into the connection and to store into
* the timestamps database
* @flush_to_disk: if %TRUE, commit timestamp update to persistent storage
*
* Updates the connection and timestamps database with the provided timestamp.
**/
void
nm_settings_connection_update_timestamp (NMSettingsConnection *self,
guint64 timestamp,
gboolean flush_to_disk)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
const char *connection_uuid;
GKeyFile *timestamps_file;
char *data, *tmp;
gsize len;
GError *error = NULL;
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (self));
/* Update timestamp in private storage */
priv->timestamp = timestamp;
priv->timestamp_set = TRUE;
if (flush_to_disk == FALSE)
return;
/* Save timestamp to timestamps database file */
timestamps_file = g_key_file_new ();
if (!g_key_file_load_from_file (timestamps_file, SETTINGS_TIMESTAMPS_FILE, G_KEY_FILE_KEEP_COMMENTS, &error)) {
if (!(error->domain == G_FILE_ERROR && error->code == G_FILE_ERROR_NOENT))
_LOGW ("error parsing timestamps file '%s': %s", SETTINGS_TIMESTAMPS_FILE, error->message);
g_clear_error (&error);
}
connection_uuid = nm_connection_get_uuid (NM_CONNECTION (self));
tmp = g_strdup_printf ("%" G_GUINT64_FORMAT, timestamp);
g_key_file_set_value (timestamps_file, "timestamps", connection_uuid, tmp);
g_free (tmp);
data = g_key_file_to_data (timestamps_file, &len, &error);
if (data) {
g_file_set_contents (SETTINGS_TIMESTAMPS_FILE, data, len, &error);
g_free (data);
}
if (error) {
_LOGW ("error saving timestamp to file '%s': %s", SETTINGS_TIMESTAMPS_FILE, error->message);
g_error_free (error);
}
g_key_file_free (timestamps_file);
}
/**
* nm_settings_connection_read_and_fill_timestamp:
* @self: the #NMSettingsConnection
*
* Retrieves timestamp of the connection's last usage from database file and
* stores it into the connection private data.
**/
void
nm_settings_connection_read_and_fill_timestamp (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
const char *connection_uuid;
guint64 timestamp = 0;
GKeyFile *timestamps_file;
GError *err = NULL;
char *tmp_str;
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (self));
/* Get timestamp from database file */
timestamps_file = g_key_file_new ();
g_key_file_load_from_file (timestamps_file, SETTINGS_TIMESTAMPS_FILE, G_KEY_FILE_KEEP_COMMENTS, NULL);
connection_uuid = nm_connection_get_uuid (NM_CONNECTION (self));
tmp_str = g_key_file_get_value (timestamps_file, "timestamps", connection_uuid, &err);
if (tmp_str) {
timestamp = g_ascii_strtoull (tmp_str, NULL, 10);
g_free (tmp_str);
}
/* Update connection's timestamp */
if (!err) {
priv->timestamp = timestamp;
priv->timestamp_set = TRUE;
} else {
_LOGD ("failed to read connection timestamp: (%d) %s",
err->code, err->message);
g_clear_error (&err);
}
g_key_file_free (timestamps_file);
}
/**
* nm_settings_connection_get_seen_bssids:
* @self: the #NMSettingsConnection
*
* Returns current list of seen BSSIDs for the connection.
*
* Returns: (transfer container) list of seen BSSIDs (in the standard hex-digits-and-colons notation).
* The caller is responsible for freeing the list, but not the content.
**/
char **
nm_settings_connection_get_seen_bssids (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
GHashTableIter iter;
char **bssids, *bssid;
int i;
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), NULL);
bssids = g_new (char *, g_hash_table_size (priv->seen_bssids) + 1);
i = 0;
g_hash_table_iter_init (&iter, priv->seen_bssids);
while (g_hash_table_iter_next (&iter, NULL, (gpointer) &bssid))
bssids[i++] = bssid;
bssids[i] = NULL;
return bssids;
}
/**
* nm_settings_connection_has_seen_bssid:
* @self: the #NMSettingsConnection
* @bssid: the BSSID to check the seen BSSID list for
*
* Returns: %TRUE if the given @bssid is in the seen BSSIDs list
**/
gboolean
nm_settings_connection_has_seen_bssid (NMSettingsConnection *self,
const char *bssid)
{
g_return_val_if_fail (NM_IS_SETTINGS_CONNECTION (self), FALSE);
g_return_val_if_fail (bssid != NULL, FALSE);
return !!g_hash_table_lookup (NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->seen_bssids, bssid);
}
/**
* nm_settings_connection_add_seen_bssid:
* @self: the #NMSettingsConnection
* @seen_bssid: BSSID to set into the connection and to store into
* the seen-bssids database
*
* Updates the connection and seen-bssids database with the provided BSSID.
**/
void
nm_settings_connection_add_seen_bssid (NMSettingsConnection *self,
const char *seen_bssid)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
const char *connection_uuid;
GKeyFile *seen_bssids_file;
char *data, *bssid_str;
const char **list;
gsize len;
GError *error = NULL;
GHashTableIter iter;
guint n;
g_return_if_fail (seen_bssid != NULL);
if (g_hash_table_lookup (priv->seen_bssids, seen_bssid))
return; /* Already in the list */
/* Add the new BSSID; let the hash take ownership of the allocated BSSID string */
bssid_str = g_strdup (seen_bssid);
g_hash_table_insert (priv->seen_bssids, bssid_str, bssid_str);
/* Build up a list of all the BSSIDs in string form */
n = 0;
list = g_malloc0 (g_hash_table_size (priv->seen_bssids) * sizeof (char *));
g_hash_table_iter_init (&iter, priv->seen_bssids);
while (g_hash_table_iter_next (&iter, NULL, (gpointer) &bssid_str))
list[n++] = bssid_str;
/* Save BSSID to seen-bssids file */
seen_bssids_file = g_key_file_new ();
g_key_file_set_list_separator (seen_bssids_file, ',');
if (!g_key_file_load_from_file (seen_bssids_file, SETTINGS_SEEN_BSSIDS_FILE, G_KEY_FILE_KEEP_COMMENTS, &error)) {
if (!g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT)) {
_LOGW ("error parsing seen-bssids file '%s': %s",
SETTINGS_SEEN_BSSIDS_FILE, error->message);
}
g_clear_error (&error);
}
connection_uuid = nm_connection_get_uuid (NM_CONNECTION (self));
g_key_file_set_string_list (seen_bssids_file, "seen-bssids", connection_uuid, list, n);
g_free (list);
data = g_key_file_to_data (seen_bssids_file, &len, &error);
if (data) {
g_file_set_contents (SETTINGS_SEEN_BSSIDS_FILE, data, len, &error);
g_free (data);
}
g_key_file_free (seen_bssids_file);
if (error) {
_LOGW ("error saving seen-bssids to file '%s': %s",
SETTINGS_SEEN_BSSIDS_FILE, error->message);
g_error_free (error);
}
}
/**
* nm_settings_connection_read_and_fill_seen_bssids:
* @self: the #NMSettingsConnection
*
* Retrieves seen BSSIDs of the connection from database file and stores then into the
* connection private data.
**/
void
nm_settings_connection_read_and_fill_seen_bssids (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
const char *connection_uuid;
GKeyFile *seen_bssids_file;
char **tmp_strv = NULL;
gsize i, len = 0;
NMSettingWireless *s_wifi;
/* Get seen BSSIDs from database file */
seen_bssids_file = g_key_file_new ();
g_key_file_set_list_separator (seen_bssids_file, ',');
if (g_key_file_load_from_file (seen_bssids_file, SETTINGS_SEEN_BSSIDS_FILE, G_KEY_FILE_KEEP_COMMENTS, NULL)) {
connection_uuid = nm_connection_get_uuid (NM_CONNECTION (self));
tmp_strv = g_key_file_get_string_list (seen_bssids_file, "seen-bssids", connection_uuid, &len, NULL);
}
g_key_file_free (seen_bssids_file);
/* Update connection's seen-bssids */
if (tmp_strv) {
g_hash_table_remove_all (priv->seen_bssids);
for (i = 0; i < len; i++)
g_hash_table_insert (priv->seen_bssids, tmp_strv[i], tmp_strv[i]);
g_free (tmp_strv);
} else {
/* If this connection didn't have an entry in the seen-bssids database,
* maybe this is the first time we've read it in, so populate the
* seen-bssids list from the deprecated seen-bssids property of the
* wifi setting.
*/
s_wifi = nm_connection_get_setting_wireless (NM_CONNECTION (self));
if (s_wifi) {
len = nm_setting_wireless_get_num_seen_bssids (s_wifi);
for (i = 0; i < len; i++) {
char *bssid_dup = g_strdup (nm_setting_wireless_get_seen_bssid (s_wifi, i));
g_hash_table_insert (priv->seen_bssids, bssid_dup, bssid_dup);
}
}
}
}
#define AUTOCONNECT_RETRIES_DEFAULT 4
#define AUTOCONNECT_RESET_RETRIES_TIMER 300
int
nm_settings_connection_get_autoconnect_retries (NMSettingsConnection *self)
{
return NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->autoconnect_retries;
}
void
nm_settings_connection_set_autoconnect_retries (NMSettingsConnection *self,
int retries)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
priv->autoconnect_retries = retries;
if (retries)
priv->autoconnect_retry_time = 0;
else
priv->autoconnect_retry_time = nm_utils_get_monotonic_timestamp_s () + AUTOCONNECT_RESET_RETRIES_TIMER;
}
void
nm_settings_connection_reset_autoconnect_retries (NMSettingsConnection *self)
{
nm_settings_connection_set_autoconnect_retries (self, AUTOCONNECT_RETRIES_DEFAULT);
}
gint32
nm_settings_connection_get_autoconnect_retry_time (NMSettingsConnection *self)
{
return NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->autoconnect_retry_time;
}
NMDeviceStateReason
nm_settings_connection_get_autoconnect_blocked_reason (NMSettingsConnection *self)
{
return NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->autoconnect_blocked_reason;
}
void
nm_settings_connection_set_autoconnect_blocked_reason (NMSettingsConnection *self,
NMDeviceStateReason reason)
{
NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->autoconnect_blocked_reason = reason;
}
gboolean
nm_settings_connection_can_autoconnect (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
NMSettingConnection *s_con;
const char *permission;
if ( !priv->visible
|| priv->autoconnect_retries == 0
|| priv->autoconnect_blocked_reason != NM_DEVICE_STATE_REASON_NONE)
return FALSE;
s_con = nm_connection_get_setting_connection (NM_CONNECTION (self));
if (!nm_setting_connection_get_autoconnect (s_con))
return FALSE;
permission = nm_utils_get_shared_wifi_permission (NM_CONNECTION (self));
if (permission) {
if (nm_settings_connection_check_permission (self, permission) == FALSE)
return FALSE;
}
return TRUE;
}
/**
* nm_settings_connection_get_nm_generated:
* @self: an #NMSettingsConnection
*
* Gets the "nm-generated" flag on @self.
*
* A connection is "nm-generated" if it was generated by
* nm_device_generate_connection() and has not been modified or
* saved by the user since then.
*/
gboolean
nm_settings_connection_get_nm_generated (NMSettingsConnection *self)
{
return NM_FLAGS_HAS (nm_settings_connection_get_flags (self), NM_SETTINGS_CONNECTION_FLAGS_NM_GENERATED);
}
/**
* nm_settings_connection_get_nm_generated_assumed:
* @self: an #NMSettingsConnection
*
* Gets the "nm-generated-assumed" flag on @self.
*
* The connection is a generated connection especially
* generated for connection assumption.
*/
gboolean
nm_settings_connection_get_nm_generated_assumed (NMSettingsConnection *self)
{
return NM_FLAGS_HAS (nm_settings_connection_get_flags (self), NM_SETTINGS_CONNECTION_FLAGS_NM_GENERATED_ASSUMED);
}
gboolean
nm_settings_connection_get_ready (NMSettingsConnection *self)
{
return NM_SETTINGS_CONNECTION_GET_PRIVATE (self)->ready;
}
void
nm_settings_connection_set_ready (NMSettingsConnection *self,
gboolean ready)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
ready = !!ready;
if (priv->ready != ready) {
priv->ready = ready;
g_object_notify (G_OBJECT (self), NM_SETTINGS_CONNECTION_READY);
}
}
/**
* nm_settings_connection_set_filename:
* @self: an #NMSettingsConnection
* @filename: @self's filename
*
* Called by a backend to sets the filename that @self is read
* from/written to.
*/
void
nm_settings_connection_set_filename (NMSettingsConnection *self,
const char *filename)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
if (g_strcmp0 (filename, priv->filename) != 0) {
g_free (priv->filename);
priv->filename = g_strdup (filename);
g_object_notify (G_OBJECT (self), NM_SETTINGS_CONNECTION_FILENAME);
}
}
/**
* nm_settings_connection_get_filename:
* @self: an #NMSettingsConnection
*
* Gets the filename that @self was read from/written to. This may be
* %NULL if @self is unsaved, or if it is associated with a backend that
* does not store each connection in a separate file.
*
* Returns: @self's filename.
*/
const char *
nm_settings_connection_get_filename (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
return priv->filename;
}
/**************************************************************/
static void
nm_settings_connection_init (NMSettingsConnection *self)
{
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
priv->visible = FALSE;
priv->ready = TRUE;
priv->session_changed_id = nm_session_monitor_connect (session_changed_cb, self);
priv->agent_mgr = g_object_ref (nm_agent_manager_get ());
priv->seen_bssids = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
priv->autoconnect_retries = AUTOCONNECT_RETRIES_DEFAULT;
priv->autoconnect_blocked_reason = NM_DEVICE_STATE_REASON_NONE;
g_signal_connect (self, NM_CONNECTION_SECRETS_CLEARED, G_CALLBACK (secrets_cleared_cb), NULL);
g_signal_connect (self, NM_CONNECTION_CHANGED, G_CALLBACK (changed_cb), GUINT_TO_POINTER (TRUE));
}
static void
constructed (GObject *object)
{
NMSettingsConnection *self = NM_SETTINGS_CONNECTION (object);
_LOGD ("constructed (%s)", G_OBJECT_TYPE_NAME (self));
G_OBJECT_CLASS (nm_settings_connection_parent_class)->constructed (object);
}
static void
dispose (GObject *object)
{
NMSettingsConnection *self = NM_SETTINGS_CONNECTION (object);
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
GSList *iter;
_LOGD ("disposing");
if (priv->updated_idle_id) {
g_source_remove (priv->updated_idle_id);
priv->updated_idle_id = 0;
}
/* Disconnect handlers.
* changed_cb() has to be disconnected *before* nm_connection_clear_secrets(),
* because nm_connection_clear_secrets() emits NM_CONNECTION_CHANGED signal.
*/
g_signal_handlers_disconnect_by_func (self, G_CALLBACK (secrets_cleared_cb), NULL);
g_signal_handlers_disconnect_by_func (self, G_CALLBACK (changed_cb), GUINT_TO_POINTER (TRUE));
nm_connection_clear_secrets (NM_CONNECTION (self));
g_clear_object (&priv->system_secrets);
g_clear_object (&priv->agent_secrets);
/* Cancel PolicyKit requests */
g_slist_free_full (priv->pending_auths, (GDestroyNotify) nm_auth_chain_unref);
priv->pending_auths = NULL;
/* Cancel in-progress secrets requests */
for (iter = priv->reqs; iter; iter = g_slist_next (iter))
nm_agent_manager_cancel_secrets (priv->agent_mgr, GPOINTER_TO_UINT (iter->data));
g_slist_free (priv->reqs);
priv->reqs = NULL;
g_clear_pointer (&priv->seen_bssids, (GDestroyNotify) g_hash_table_destroy);
set_visible (self, FALSE);
if (priv->session_changed_id) {
nm_session_monitor_disconnect (priv->session_changed_id);
priv->session_changed_id = 0;
}
g_clear_object (&priv->agent_mgr);
g_clear_pointer (&priv->filename, g_free);
G_OBJECT_CLASS (nm_settings_connection_parent_class)->dispose (object);
}
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
NMSettingsConnection *self = NM_SETTINGS_CONNECTION (object);
NMSettingsConnectionPrivate *priv = NM_SETTINGS_CONNECTION_GET_PRIVATE (self);
switch (prop_id) {
case PROP_VISIBLE:
g_value_set_boolean (value, priv->visible);
break;
case PROP_UNSAVED:
g_value_set_boolean (value, nm_settings_connection_get_unsaved (self));
break;
case PROP_READY:
g_value_set_boolean (value, nm_settings_connection_get_ready (self));
break;
case PROP_FLAGS:
g_value_set_uint (value, nm_settings_connection_get_flags (self));
break;
case PROP_FILENAME:
g_value_set_string (value, nm_settings_connection_get_filename (self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
NMSettingsConnection *self = NM_SETTINGS_CONNECTION (object);
switch (prop_id) {
case PROP_READY:
nm_settings_connection_set_ready (self, g_value_get_boolean (value));
break;
case PROP_FLAGS:
nm_settings_connection_set_flags_all (self, g_value_get_uint (value));
break;
case PROP_FILENAME:
nm_settings_connection_set_filename (self, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nm_settings_connection_class_init (NMSettingsConnectionClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
NMExportedObjectClass *exported_object_class = NM_EXPORTED_OBJECT_CLASS (class);
g_type_class_add_private (class, sizeof (NMSettingsConnectionPrivate));
exported_object_class->export_path = NM_DBUS_PATH_SETTINGS "/%u";
/* Virtual methods */
object_class->constructed = constructed;
object_class->dispose = dispose;
object_class->get_property = get_property;
object_class->set_property = set_property;
class->replace_and_commit = replace_and_commit;
class->commit_changes = commit_changes;
class->delete = do_delete;
class->supports_secrets = supports_secrets;
/* Properties */
g_object_class_install_property
(object_class, PROP_VISIBLE,
g_param_spec_boolean (NM_SETTINGS_CONNECTION_VISIBLE, "", "",
FALSE,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property
(object_class, PROP_UNSAVED,
g_param_spec_boolean (NM_SETTINGS_CONNECTION_UNSAVED, "", "",
FALSE,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property
(object_class, PROP_READY,
g_param_spec_boolean (NM_SETTINGS_CONNECTION_READY, "", "",
TRUE,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property
(object_class, PROP_FLAGS,
g_param_spec_uint (NM_SETTINGS_CONNECTION_FLAGS, "", "",
NM_SETTINGS_CONNECTION_FLAGS_NONE,
NM_SETTINGS_CONNECTION_FLAGS_ALL,
NM_SETTINGS_CONNECTION_FLAGS_NONE,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property
(object_class, PROP_FILENAME,
g_param_spec_string (NM_SETTINGS_CONNECTION_FILENAME, "", "",
NULL,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
/* Signals */
/* Emitted when the connection is changed for any reason */
signals[UPDATED] =
g_signal_new (NM_SETTINGS_CONNECTION_UPDATED,
G_TYPE_FROM_CLASS (class),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/* Emitted when connection is changed from D-Bus */
signals[UPDATED_BY_USER] =
g_signal_new (NM_SETTINGS_CONNECTION_UPDATED_BY_USER,
G_TYPE_FROM_CLASS (class),
G_SIGNAL_RUN_FIRST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[REMOVED] =
g_signal_new (NM_SETTINGS_CONNECTION_REMOVED,
G_TYPE_FROM_CLASS (class),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (class),
NMDBUS_TYPE_SETTINGS_CONNECTION_SKELETON,
"Update", impl_settings_connection_update,
"UpdateUnsaved", impl_settings_connection_update_unsaved,
"Delete", impl_settings_connection_delete,
"GetSettings", impl_settings_connection_get_settings,
"GetSecrets", impl_settings_connection_get_secrets,
"ClearSecrets", impl_settings_connection_clear_secrets,
"Save", impl_settings_connection_save,
NULL);
}
static void
nm_settings_connection_connection_interface_init (NMConnectionInterface *iface)
{
}
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