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NetworkManager/src/settings/nm-settings.c
Thomas Haller 782b85bf13 settings: drop unused define for HOSTNAME_FILE 
Fixes: 5bfb7c3c89
(cherry picked from commit 7deb3b4fb5)
2017-12-20 14:26:30 +01:00

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager system settings service
*
* Søren Sandmann <sandmann@daimi.au.dk>
* Dan Williams <dcbw@redhat.com>
* Tambet Ingo <tambet@gmail.com>
*
* 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.
*
* (C) Copyright 2007 - 2011 Red Hat, Inc.
* (C) Copyright 2008 Novell, Inc.
*/
#include "nm-default.h"
#include "nm-settings.h"
#include <unistd.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <gmodule.h>
#include <pwd.h>
#if HAVE_SELINUX
#include <selinux/selinux.h>
#endif
#include "nm-common-macros.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 "devices/nm-device-ethernet.h"
#include "nm-settings-connection.h"
#include "nm-settings-plugin.h"
#include "nm-bus-manager.h"
#include "nm-auth-utils.h"
#include "nm-auth-subject.h"
#include "nm-session-monitor.h"
#include "plugins/keyfile/nms-keyfile-plugin.h"
#include "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"
#include "introspection/org.freedesktop.NetworkManager.Settings.h"
/*****************************************************************************/
#define EXPORT(sym) void * __export_##sym = &sym;
EXPORT(nm_settings_connection_get_type)
EXPORT(nm_settings_connection_update)
/*****************************************************************************/
static NM_CACHED_QUARK_FCN ("plugin-module-path", plugin_module_path_quark)
static NM_CACHED_QUARK_FCN ("default-wired-connection", _default_wired_connection_quark)
static NM_CACHED_QUARK_FCN ("default-wired-device", _default_wired_device_quark)
/*****************************************************************************/
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,
NEW_CONNECTION, /* exported, not used internally */
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
typedef struct {
NMAgentManager *agent_mgr;
NMConfig *config;
GSList *auths;
GSList *plugins;
gboolean connections_loaded;
GHashTable *connections;
NMSettingsConnection **connections_cached_list;
GSList *unmanaged_specs;
GSList *unrecognized_specs;
gboolean started;
gboolean startup_complete;
NMHostnameManager *hostname_manager;
} NMSettingsPrivate;
struct _NMSettings {
NMExportedObject parent;
NMSettingsPrivate _priv;
};
struct _NMSettingsClass {
NMExportedObjectClass parent;
};
G_DEFINE_TYPE (NMSettings, nm_settings, NM_TYPE_EXPORTED_OBJECT);
#define NM_SETTINGS_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMSettings, NM_IS_SETTINGS)
/*****************************************************************************/
#define _NMLOG_DOMAIN LOGD_SETTINGS
#define _NMLOG(level, ...) __NMLOG_DEFAULT (level, _NMLOG_DOMAIN, "settings", __VA_ARGS__)
/*****************************************************************************/
static void claim_connection (NMSettings *self,
NMSettingsConnection *connection);
static void unmanaged_specs_changed (NMSettingsPlugin *config, gpointer user_data);
static void unrecognized_specs_changed (NMSettingsPlugin *config, gpointer user_data);
static void connection_ready_changed (NMSettingsConnection *conn,
GParamSpec *pspec,
gpointer user_data);
/*****************************************************************************/
static void
check_startup_complete (NMSettings *self)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GHashTableIter iter;
NMSettingsConnection *conn;
if (priv->startup_complete)
return;
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &conn)) {
if (!nm_settings_connection_get_ready (conn))
return;
}
/* the connection_ready_changed signal handler is no longer needed. */
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &conn))
g_signal_handlers_disconnect_by_func (conn, G_CALLBACK (connection_ready_changed), self);
priv->startup_complete = TRUE;
_notify (self, PROP_STARTUP_COMPLETE);
}
static void
connection_ready_changed (NMSettingsConnection *conn,
GParamSpec *pspec,
gpointer user_data)
{
NMSettings *self = NM_SETTINGS (user_data);
if (nm_settings_connection_get_ready (conn))
check_startup_complete (self);
}
static void
plugin_connection_added (NMSettingsPlugin *config,
NMSettingsConnection *connection,
gpointer user_data)
{
claim_connection (NM_SETTINGS (user_data), connection);
}
static void
load_connections (NMSettings *self)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GSList *iter;
for (iter = priv->plugins; iter; iter = g_slist_next (iter)) {
NMSettingsPlugin *plugin = NM_SETTINGS_PLUGIN (iter->data);
GSList *plugin_connections;
GSList *elt;
plugin_connections = nm_settings_plugin_get_connections (plugin);
// FIXME: ensure connections from plugins loaded with a lower priority
// get rejected when they conflict with connections from a higher
// priority plugin.
for (elt = plugin_connections; elt; elt = g_slist_next (elt))
claim_connection (self, NM_SETTINGS_CONNECTION (elt->data));
g_slist_free (plugin_connections);
g_signal_connect (plugin, NM_SETTINGS_PLUGIN_CONNECTION_ADDED,
G_CALLBACK (plugin_connection_added), self);
g_signal_connect (plugin, NM_SETTINGS_PLUGIN_UNMANAGED_SPECS_CHANGED,
G_CALLBACK (unmanaged_specs_changed), self);
g_signal_connect (plugin, NM_SETTINGS_PLUGIN_UNRECOGNIZED_SPECS_CHANGED,
G_CALLBACK (unrecognized_specs_changed), self);
}
priv->connections_loaded = TRUE;
_notify (self, PROP_CONNECTIONS);
unmanaged_specs_changed (NULL, self);
unrecognized_specs_changed (NULL, self);
}
void
nm_settings_for_each_connection (NMSettings *self,
NMSettingsForEachFunc for_each_func,
gpointer user_data)
{
NMSettingsPrivate *priv;
GHashTableIter iter;
gpointer data;
g_return_if_fail (NM_IS_SETTINGS (self));
g_return_if_fail (for_each_func != NULL);
priv = NM_SETTINGS_GET_PRIVATE (self);
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, &data))
for_each_func (self, NM_SETTINGS_CONNECTION (data), user_data);
}
static void
impl_settings_list_connections (NMSettings *self,
GDBusMethodInvocation *context)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GPtrArray *connections;
GHashTableIter iter;
gpointer key;
connections = g_ptr_array_sized_new (g_hash_table_size (priv->connections) + 1);
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, &key, NULL))
g_ptr_array_add (connections, key);
g_ptr_array_add (connections, NULL);
g_dbus_method_invocation_return_value (context,
g_variant_new ("(^ao)", connections->pdata));
g_ptr_array_unref (connections);
}
NMSettingsConnection *
nm_settings_get_connection_by_uuid (NMSettings *self, const char *uuid)
{
NMSettingsPrivate *priv;
NMSettingsConnection *candidate;
GHashTableIter iter;
g_return_val_if_fail (NM_IS_SETTINGS (self), NULL);
g_return_val_if_fail (uuid != NULL, NULL);
priv = NM_SETTINGS_GET_PRIVATE (self);
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, (gpointer) &candidate)) {
if (g_strcmp0 (uuid, nm_settings_connection_get_uuid (candidate)) == 0)
return candidate;
}
return NULL;
}
static void
impl_settings_get_connection_by_uuid (NMSettings *self,
GDBusMethodInvocation *context,
const char *uuid)
{
NMSettingsConnection *connection = NULL;
NMAuthSubject *subject = NULL;
GError *error = NULL;
char *error_desc = NULL;
connection = nm_settings_get_connection_by_uuid (self, uuid);
if (!connection) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_INVALID_CONNECTION,
"No connection with the UUID was found.");
goto error;
}
subject = nm_auth_subject_new_unix_process_from_context (context);
if (!subject) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
"Unable to determine UID of request.");
goto error;
}
if (!nm_auth_is_subject_in_acl (NM_CONNECTION (connection),
subject,
&error_desc)) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
error_desc);
g_free (error_desc);
goto error;
}
g_clear_object (&subject);
g_dbus_method_invocation_return_value (
context,
g_variant_new ("(o)", nm_connection_get_path (NM_CONNECTION (connection))));
return;
error:
g_assert (error);
g_dbus_method_invocation_take_error (context, error);
g_clear_object (&subject);
}
/**
* 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)
{
GHashTableIter iter;
NMSettingsPrivate *priv;
guint l, i;
NMSettingsConnection **v;
NMSettingsConnection *con;
g_return_val_if_fail (NM_IS_SETTINGS (self), NULL);
priv = NM_SETTINGS_GET_PRIVATE (self);
if (G_LIKELY (priv->connections_cached_list)) {
NM_SET_OUT (out_len, g_hash_table_size (priv->connections));
return priv->connections_cached_list;
}
l = g_hash_table_size (priv->connections);
v = g_new (NMSettingsConnection *, (gsize) l + 1);
i = 0;
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &con)) {
nm_assert (i < l);
v[i++] = con;
}
nm_assert (i == l);
v[i] = NULL;
NM_SET_OUT (out_len, l);
priv->connections_cached_list = v;
return v;
}
/**
* 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;
g_return_val_if_fail (NM_IS_SETTINGS (self), NULL);
g_return_val_if_fail (path != NULL, NULL);
priv = NM_SETTINGS_GET_PRIVATE (self);
return (NMSettingsConnection *) g_hash_table_lookup (priv->connections, path);
}
gboolean
nm_settings_has_connection (NMSettings *self, NMSettingsConnection *connection)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GHashTableIter iter;
gpointer data;
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, &data))
if (data == connection)
return TRUE;
return FALSE;
}
const GSList *
nm_settings_get_unmanaged_specs (NMSettings *self)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
return priv->unmanaged_specs;
}
static NMSettingsPlugin *
get_plugin (NMSettings *self, guint32 capability)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GSList *iter;
g_return_val_if_fail (self != NULL, NULL);
/* Do any of the plugins support the given capability? */
for (iter = priv->plugins; iter; iter = iter->next) {
NMSettingsPluginCapabilities caps = NM_SETTINGS_PLUGIN_CAP_NONE;
g_object_get (G_OBJECT (iter->data), NM_SETTINGS_PLUGIN_CAPABILITIES, &caps, NULL);
if (NM_FLAGS_ALL (caps, capability))
return NM_SETTINGS_PLUGIN (iter->data);
}
return NULL;
}
static gboolean
find_spec (GSList *spec_list, const char *spec)
{
GSList *iter;
for (iter = spec_list; iter; iter = g_slist_next (iter)) {
if (!strcmp ((const char *) iter->data, spec))
return TRUE;
}
return FALSE;
}
static void
update_specs (NMSettings *self, GSList **specs_ptr,
GSList * (*get_specs_func) (NMSettingsPlugin *))
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GSList *iter;
g_slist_free_full (*specs_ptr, g_free);
*specs_ptr = NULL;
for (iter = priv->plugins; iter; iter = g_slist_next (iter)) {
GSList *specs, *specs_iter;
specs = get_specs_func (NM_SETTINGS_PLUGIN (iter->data));
for (specs_iter = specs; specs_iter; specs_iter = specs_iter->next) {
if (!find_spec (*specs_ptr, (const char *) specs_iter->data)) {
*specs_ptr = g_slist_prepend (*specs_ptr, specs_iter->data);
} else
g_free (specs_iter->data);
}
g_slist_free (specs);
}
}
static void
unmanaged_specs_changed (NMSettingsPlugin *config,
gpointer user_data)
{
NMSettings *self = NM_SETTINGS (user_data);
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
update_specs (self, &priv->unmanaged_specs,
nm_settings_plugin_get_unmanaged_specs);
_notify (self, PROP_UNMANAGED_SPECS);
}
static void
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 gboolean
add_plugin (NMSettings *self, NMSettingsPlugin *plugin)
{
NMSettingsPrivate *priv;
char *pname = NULL;
char *pinfo = NULL;
const char *path;
g_return_val_if_fail (NM_IS_SETTINGS (self), FALSE);
g_return_val_if_fail (NM_IS_SETTINGS_PLUGIN (plugin), FALSE);
priv = NM_SETTINGS_GET_PRIVATE (self);
if (g_slist_find (priv->plugins, plugin)) {
/* don't add duplicates. */
return FALSE;
}
priv->plugins = g_slist_append (priv->plugins, g_object_ref (plugin));
nm_settings_plugin_init (plugin);
g_object_get (G_OBJECT (plugin),
NM_SETTINGS_PLUGIN_NAME, &pname,
NM_SETTINGS_PLUGIN_INFO, &pinfo,
NULL);
path = g_object_get_qdata (G_OBJECT (plugin), plugin_module_path_quark ());
_LOGI ("loaded plugin %s: %s%s%s%s", pname, pinfo,
NM_PRINT_FMT_QUOTED (path, " (", path, ")", ""));
g_free (pname);
g_free (pinfo);
return TRUE;
}
static GObject *
find_plugin (GSList *list, const char *pname)
{
GSList *iter;
GObject *obj = NULL;
g_return_val_if_fail (pname != NULL, NULL);
for (iter = list; iter && !obj; iter = g_slist_next (iter)) {
NMSettingsPlugin *plugin = NM_SETTINGS_PLUGIN (iter->data);
char *list_pname = NULL;
g_object_get (G_OBJECT (plugin),
NM_SETTINGS_PLUGIN_NAME,
&list_pname,
NULL);
if (list_pname && !strcmp (pname, list_pname))
obj = G_OBJECT (plugin);
g_free (list_pname);
}
return obj;
}
static void
add_keyfile_plugin (NMSettings *self)
{
gs_unref_object NMSKeyfilePlugin *keyfile_plugin = NULL;
keyfile_plugin = nms_keyfile_plugin_new ();
if (!add_plugin (self, NM_SETTINGS_PLUGIN (keyfile_plugin)))
g_return_if_reached ();
}
static gboolean
load_plugins (NMSettings *self, const char **plugins, GError **error)
{
GSList *list = NULL;
const char **iter;
gboolean keyfile_added = FALSE;
gboolean success = TRUE;
gboolean add_ibft = FALSE;
gboolean has_no_ibft;
gssize idx_no_ibft, idx_ibft;
idx_ibft = nm_utils_strv_find_first ((char **) plugins, -1, "ibft");
idx_no_ibft = nm_utils_strv_find_first ((char **) plugins, -1, "no-ibft");
has_no_ibft = idx_no_ibft >= 0 && idx_no_ibft > idx_ibft;
#if WITH_SETTINGS_PLUGIN_IBFT
add_ibft = idx_no_ibft < 0 && idx_ibft < 0;
#endif
for (iter = plugins; iter && *iter; iter++) {
const char *pname = *iter;
GObject *obj;
if (!*pname || strchr (pname, '/')) {
_LOGW ("ignore invalid plugin \"%s\"", pname);
continue;
}
if (!strcmp (pname, "ifcfg-suse")) {
_LOGW ("skipping deprecated plugin ifcfg-suse");
continue;
}
if (!strcmp (pname, "no-ibft"))
continue;
if (has_no_ibft && !strcmp (pname, "ibft"))
continue;
/* keyfile plugin is built-in now */
if (strcmp (pname, "keyfile") == 0) {
if (!keyfile_added) {
add_keyfile_plugin (self);
keyfile_added = TRUE;
}
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;
}
if (find_plugin (list, pname))
continue;
load_plugin:
{
GModule *plugin;
gs_free char *full_name = NULL;
gs_free char *path = NULL;
GObject * (*factory_func) (void);
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, strerror (errsv));
goto next;
}
if (!S_ISREG (st.st_mode)) {
_LOGW ("could not load plugin '%s' from file '%s': not a file", pname, path);
goto next;
}
if (st.st_uid != 0) {
_LOGW ("could not load plugin '%s' from file '%s': file must be owned by root", pname, path);
goto next;
}
if (st.st_mode & (S_IWGRP | S_IWOTH | S_ISUID)) {
_LOGW ("could not load plugin '%s' from file '%s': invalid file permissions", pname, path);
goto next;
}
plugin = g_module_open (path, G_MODULE_BIND_LOCAL);
if (!plugin) {
_LOGW ("could not load plugin '%s' from file '%s': %s",
pname, path, g_module_error ());
goto next;
}
/* errors after this point are fatal, because we loaded the shared library already. */
if (!g_module_symbol (plugin, "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);
success = FALSE;
g_module_close (plugin);
break;
}
/* after accessing the plugin we cannot unload it anymore, because the glib
* types cannot be properly unregistered. */
g_module_make_resident (plugin);
obj = (*factory_func) ();
if (!obj || !NM_IS_SETTINGS_PLUGIN (obj)) {
g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED,
"Plugin '%s' returned invalid system config object.",
pname);
success = FALSE;
break;
}
g_object_set_qdata_full (obj, plugin_module_path_quark (), path, g_free);
path = NULL;
if (add_plugin (self, NM_SETTINGS_PLUGIN (obj)))
list = g_slist_append (list, obj);
else
g_object_unref (obj);
}
next:
if (add_ibft && !strcmp (pname, "ifcfg-rh")) {
/* The plugin ibft is not explicitly mentioned but we just enabled "ifcfg-rh".
* Enable "ibft" by default after "ifcfg-rh". */
pname = "ibft";
add_ibft = FALSE;
goto load_plugin;
}
}
/* If keyfile plugin was not among configured plugins, add it as the last one */
if (!keyfile_added)
add_keyfile_plugin (self);
g_slist_free_full (list, g_object_unref);
return success;
}
static void
connection_updated (NMSettingsConnection *connection, gboolean by_user, gpointer user_data)
{
g_signal_emit (NM_SETTINGS (user_data),
signals[CONNECTION_UPDATED],
0,
connection,
by_user);
}
static void
connection_flags_changed (NMSettingsConnection *connection,
GParamSpec *pspec,
gpointer user_data)
{
g_signal_emit (NM_SETTINGS (user_data),
signals[CONNECTION_FLAGS_CHANGED],
0,
connection);
}
static void
connection_removed (NMSettingsConnection *connection, gpointer user_data)
{
NMSettings *self = NM_SETTINGS (user_data);
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
const char *cpath = nm_connection_get_path (NM_CONNECTION (connection));
if (!g_hash_table_lookup (priv->connections, cpath))
g_return_if_reached ();
g_object_ref (connection);
/* Disconnect signal handlers, as plugins might still keep references
* to the connection (and thus the signal handlers would still be live)
* even after NMSettings has dropped all its references.
*/
g_signal_handlers_disconnect_by_func (connection, G_CALLBACK (connection_removed), self);
g_signal_handlers_disconnect_by_func (connection, G_CALLBACK (connection_updated), self);
g_signal_handlers_disconnect_by_func (connection, G_CALLBACK (connection_flags_changed), self);
if (!priv->startup_complete)
g_signal_handlers_disconnect_by_func (connection, G_CALLBACK (connection_ready_changed), self);
g_object_unref (self);
/* Forget about the connection internally */
g_hash_table_remove (priv->connections, (gpointer) cpath);
g_clear_pointer (&priv->connections_cached_list, g_free);
/* Notify D-Bus */
g_signal_emit (self, signals[CONNECTION_REMOVED], 0, connection);
/* Re-emit for listeners like NMPolicy */
_notify (self, PROP_CONNECTIONS);
if (nm_exported_object_is_exported (NM_EXPORTED_OBJECT (connection)))
nm_exported_object_unexport (NM_EXPORTED_OBJECT (connection));
check_startup_complete (self);
g_object_unref (connection);
}
#define NM_DBUS_SERVICE_OPENCONNECT "org.freedesktop.NetworkManager.openconnect"
#define NM_OPENCONNECT_KEY_GATEWAY "gateway"
#define NM_OPENCONNECT_KEY_COOKIE "cookie"
#define NM_OPENCONNECT_KEY_GWCERT "gwcert"
#define NM_OPENCONNECT_KEY_XMLCONFIG "xmlconfig"
#define NM_OPENCONNECT_KEY_LASTHOST "lasthost"
#define NM_OPENCONNECT_KEY_AUTOCONNECT "autoconnect"
#define NM_OPENCONNECT_KEY_CERTSIGS "certsigs"
static void
openconnect_migrate_hack (NMConnection *connection)
{
NMSettingVpn *s_vpn;
NMSettingSecretFlags flags = NM_SETTING_SECRET_FLAG_NOT_SAVED;
/* Huge hack. There were some openconnect changes that needed to happen
* pretty late, too late to get into distros. Migration has already
* happened for many people, and their secret flags are wrong. But we
* don't want to requrie re-migration, so we have to fix it up here. Ugh.
*/
s_vpn = nm_connection_get_setting_vpn (connection);
if (s_vpn == NULL)
return;
if (g_strcmp0 (nm_setting_vpn_get_service_type (s_vpn), NM_DBUS_SERVICE_OPENCONNECT) == 0) {
/* These are different for every login session, and should not be stored */
nm_setting_set_secret_flags (NM_SETTING (s_vpn), NM_OPENCONNECT_KEY_GATEWAY, flags, NULL);
nm_setting_set_secret_flags (NM_SETTING (s_vpn), NM_OPENCONNECT_KEY_COOKIE, flags, NULL);
nm_setting_set_secret_flags (NM_SETTING (s_vpn), NM_OPENCONNECT_KEY_GWCERT, flags, NULL);
/* These are purely internal data for the auth-dialog, and should be stored */
flags = 0;
nm_setting_set_secret_flags (NM_SETTING (s_vpn), NM_OPENCONNECT_KEY_XMLCONFIG, flags, NULL);
nm_setting_set_secret_flags (NM_SETTING (s_vpn), NM_OPENCONNECT_KEY_LASTHOST, flags, NULL);
nm_setting_set_secret_flags (NM_SETTING (s_vpn), NM_OPENCONNECT_KEY_AUTOCONNECT, flags, NULL);
nm_setting_set_secret_flags (NM_SETTING (s_vpn), NM_OPENCONNECT_KEY_CERTSIGS, flags, NULL);
}
}
static void
claim_connection (NMSettings *self, NMSettingsConnection *connection)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GError *error = NULL;
GHashTableIter iter;
gpointer data;
const char *path;
NMSettingsConnection *existing;
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (connection));
g_return_if_fail (nm_connection_get_path (NM_CONNECTION (connection)) == NULL);
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, &data)) {
/* prevent duplicates */
if (data == connection)
return;
}
if (!nm_connection_normalize (NM_CONNECTION (connection), NULL, NULL, &error)) {
_LOGW ("plugin provided invalid connection: %s", error->message);
g_error_free (error);
return;
}
existing = nm_settings_get_connection_by_uuid (self, nm_settings_connection_get_uuid (connection));
if (existing) {
/* Cannot add duplicate connections per UUID. Just return without action and
* log a warning.
*
* This means, that plugins must not provide duplicate connections (UUID).
* In fact, none of the plugins currently would do that.
*
* But globaly, over different setting plugins, there could be duplicates
* without the individual plugins being aware. Don't handle that at all, just
* error out. That should not happen unless the admin misconfigured the system
* to create conflicting connections. */
_LOGW ("plugin provided duplicate connection with UUID %s",
nm_settings_connection_get_uuid (connection));
return;
}
/* Read timestamp from look-aside file and put it into the connection's data */
nm_settings_connection_read_and_fill_timestamp (connection);
/* Read seen-bssids from look-aside file and put it into the connection's data */
nm_settings_connection_read_and_fill_seen_bssids (connection);
/* Ensure it's initial visibility is up-to-date */
nm_settings_connection_recheck_visibility (connection);
/* Evil openconnect migration hack */
openconnect_migrate_hack (NM_CONNECTION (connection));
g_object_ref (self);
/* This one unexports the connection, it needs to run late to give the active
* connection a chance to deal with its reference to this settings connection. */
g_signal_connect_after (connection, NM_SETTINGS_CONNECTION_REMOVED,
G_CALLBACK (connection_removed), self);
g_signal_connect (connection, NM_SETTINGS_CONNECTION_UPDATED_INTERNAL,
G_CALLBACK (connection_updated), self);
g_signal_connect (connection, "notify::" NM_SETTINGS_CONNECTION_FLAGS,
G_CALLBACK (connection_flags_changed),
self);
if (!priv->startup_complete) {
g_signal_connect (connection, "notify::" NM_SETTINGS_CONNECTION_READY,
G_CALLBACK (connection_ready_changed),
self);
}
/* Export the connection over D-Bus */
g_warn_if_fail (nm_connection_get_path (NM_CONNECTION (connection)) == NULL);
path = nm_exported_object_export (NM_EXPORTED_OBJECT (connection));
nm_connection_set_path (NM_CONNECTION (connection), path);
g_hash_table_insert (priv->connections,
(gpointer) nm_connection_get_path (NM_CONNECTION (connection)),
g_object_ref (connection));
g_clear_pointer (&priv->connections_cached_list, g_free);
nm_utils_log_connection_diff (NM_CONNECTION (connection), NULL, LOGL_DEBUG, LOGD_CORE, "new connection", "++ ");
/* Only emit the individual connection-added signal after connections
* have been initially loaded.
*/
if (priv->connections_loaded) {
/* Internal added signal */
g_signal_emit (self, signals[CONNECTION_ADDED], 0, connection);
_notify (self, PROP_CONNECTIONS);
/* Exported D-Bus signal */
g_signal_emit (self, signals[NEW_CONNECTION], 0, connection);
}
nm_settings_connection_added (connection);
}
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;
}
/**
* nm_settings_add_connection:
* @self: the #NMSettings object
* @connection: the source connection to create a new #NMSettingsConnection from
* @save_to_disk: %TRUE to save the connection to disk immediately, %FALSE to
* not save to disk
* @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: the new #NMSettingsConnection or %NULL
*/
NMSettingsConnection *
nm_settings_add_connection (NMSettings *self,
NMConnection *connection,
gboolean save_to_disk,
GError **error)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GSList *iter;
NMSettingsConnection *added = NULL;
GHashTableIter citer;
NMConnection *candidate = NULL;
/* Make sure a connection with this UUID doesn't already exist */
g_hash_table_iter_init (&citer, priv->connections);
while (g_hash_table_iter_next (&citer, NULL, (gpointer *) &candidate)) {
if (g_strcmp0 (nm_connection_get_uuid (connection),
nm_connection_get_uuid (candidate)) == 0) {
g_set_error_literal (error,
NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_UUID_EXISTS,
"A connection with this UUID already exists.");
return NULL;
}
}
/* 1) plugin writes the NMConnection to disk
* 2) plugin creates a new NMSettingsConnection subclass with the settings
* from the NMConnection and returns it to the settings service
* 3) settings service exports the new NMSettingsConnection subclass
* 4) plugin notices that something on the filesystem has changed
* 5) plugin reads the changes and ignores them because they will
* contain the same data as the connection it already knows about
*/
for (iter = priv->plugins; iter; iter = g_slist_next (iter)) {
NMSettingsPlugin *plugin = NM_SETTINGS_PLUGIN (iter->data);
GError *add_error = NULL;
gs_unref_object NMConnection *simple = NULL;
gs_unref_variant GVariant *secrets = NULL;
/* Make a copy of agent-owned secrets because they won't be present in
* the connection returned by plugins, as plugins return only what was
* reread from the file. */
simple = nm_simple_connection_new_clone (connection);
nm_connection_clear_secrets_with_flags (simple,
secrets_filter_cb,
GUINT_TO_POINTER (NM_SETTING_SECRET_FLAG_AGENT_OWNED));
secrets = nm_connection_to_dbus (simple, NM_CONNECTION_SERIALIZE_ONLY_SECRETS);
added = nm_settings_plugin_add_connection (plugin, connection, save_to_disk, &add_error);
if (added) {
if (secrets)
nm_connection_update_secrets (NM_CONNECTION (added), NULL, secrets, NULL);
claim_connection (self, added);
return added;
}
_LOGD ("Failed to add %s/'%s': %s",
nm_connection_get_uuid (connection),
nm_connection_get_id (connection),
add_error->message);
g_clear_error (&add_error);
}
g_set_error_literal (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED,
"No plugin supported adding this connection");
return NULL;
}
static void
send_agent_owned_secrets (NMSettings *self,
NMSettingsConnection *connection,
NMAuthSubject *subject)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
NMConnection *for_agent;
/* 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_CONNECTION (connection));
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 (priv->agent_mgr,
nm_connection_get_path (NM_CONNECTION (connection)),
for_agent,
subject);
g_object_unref (for_agent);
}
static void
pk_add_cb (NMAuthChain *chain,
GError *chain_error,
GDBusMethodInvocation *context,
gpointer user_data)
{
NMSettings *self = NM_SETTINGS (user_data);
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
NMAuthCallResult result;
GError *error = NULL;
NMConnection *connection = NULL;
NMSettingsConnection *added = NULL;
NMSettingsAddCallback callback;
gpointer callback_data;
NMAuthSubject *subject;
const char *perm;
gboolean save_to_disk;
g_assert (context);
priv->auths = g_slist_remove (priv->auths, chain);
perm = nm_auth_chain_get_data (chain, "perm");
g_assert (perm);
result = nm_auth_chain_get_result (chain, perm);
if (chain_error) {
error = g_error_new (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_FAILED,
"Error checking authorization: %s",
chain_error->message);
} else if (result != NM_AUTH_CALL_RESULT_YES) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
"Insufficient privileges.");
} else {
/* Authorized */
connection = nm_auth_chain_get_data (chain, "connection");
g_assert (connection);
save_to_disk = GPOINTER_TO_UINT (nm_auth_chain_get_data (chain, "save-to-disk"));
added = nm_settings_add_connection (self, connection, save_to_disk, &error);
}
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 (!error && added && nm_settings_has_connection (self, added))
send_agent_owned_secrets (self, added, subject);
g_clear_error (&error);
nm_auth_chain_unref (chain);
}
/* FIXME: remove if/when kernel supports adhoc wpa */
static gboolean
is_adhoc_wpa (NMConnection *connection)
{
NMSettingWireless *s_wifi;
NMSettingWirelessSecurity *s_wsec;
const char *mode, *key_mgmt;
/* The kernel doesn't support Ad-Hoc WPA connections well at this time,
* and turns them into open networks. It's been this way since at least
* 2.6.30 or so; until that's fixed, disable WPA-protected Ad-Hoc networks.
*/
s_wifi = nm_connection_get_setting_wireless (connection);
if (!s_wifi)
return FALSE;
mode = nm_setting_wireless_get_mode (s_wifi);
if (g_strcmp0 (mode, NM_SETTING_WIRELESS_MODE_ADHOC) != 0)
return FALSE;
s_wsec = nm_connection_get_setting_wireless_security (connection);
if (!s_wsec)
return FALSE;
key_mgmt = nm_setting_wireless_security_get_key_mgmt (s_wsec);
if (g_strcmp0 (key_mgmt, "wpa-none") != 0)
return FALSE;
return TRUE;
}
void
nm_settings_add_connection_dbus (NMSettings *self,
NMConnection *connection,
gboolean save_to_disk,
GDBusMethodInvocation *context,
NMSettingsAddCallback callback,
gpointer user_data)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
NMSettingConnection *s_con;
NMAuthSubject *subject = NULL;
NMAuthChain *chain;
GError *error = NULL, *tmp_error = NULL;
char *error_desc = NULL;
const char *perm;
g_return_if_fail (connection != NULL);
g_return_if_fail (context != NULL);
/* Connection must be valid, of course */
if (!nm_connection_verify (connection, &tmp_error)) {
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;
}
/* The kernel doesn't support Ad-Hoc WPA connections well at this time,
* and turns them into open networks. It's been this way since at least
* 2.6.30 or so; until that's fixed, disable WPA-protected Ad-Hoc networks.
*/
if (is_adhoc_wpa (connection)) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_INVALID_CONNECTION,
"WPA Ad-Hoc disabled due to kernel bugs");
goto done;
}
/* Do any of the plugins support adding? */
if (!get_plugin (self, NM_SETTINGS_PLUGIN_CAP_MODIFY_CONNECTIONS)) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_NOT_SUPPORTED,
"None of the registered plugins support add.");
goto done;
}
subject = nm_auth_subject_new_unix_process_from_context (context);
if (!subject) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
"Unable to determine UID of request.");
goto done;
}
/* Ensure the caller's username exists in the connection's permissions,
* or that the permissions is empty (ie, visible by everyone).
*/
if (!nm_auth_is_subject_in_acl (connection,
subject,
&error_desc)) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
error_desc);
g_free (error_desc);
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);
g_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,
"Unable to authenticate the request.");
goto done;
}
priv->auths = g_slist_append (priv->auths, chain);
nm_auth_chain_add_call (chain, perm, TRUE);
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, "save-to-disk", GUINT_TO_POINTER (save_to_disk), NULL);
done:
if (error)
callback (self, NULL, error, context, subject, user_data);
g_clear_error (&error);
g_clear_object (&subject);
}
static void
impl_settings_add_connection_add_cb (NMSettings *self,
NMSettingsConnection *connection,
GError *error,
GDBusMethodInvocation *context,
NMAuthSubject *subject,
gpointer 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);
} else {
g_dbus_method_invocation_return_value (
context,
g_variant_new ("(o)", nm_connection_get_path (NM_CONNECTION (connection))));
nm_audit_log_connection_op (NM_AUDIT_OP_CONN_ADD, connection, TRUE, NULL,
subject, NULL);
}
}
static void
impl_settings_add_connection_helper (NMSettings *self,
GDBusMethodInvocation *context,
GVariant *settings,
gboolean save_to_disk)
{
NMConnection *connection;
GError *error = NULL;
connection = _nm_simple_connection_new_from_dbus (settings,
NM_SETTING_PARSE_FLAGS_STRICT
| NM_SETTING_PARSE_FLAGS_NORMALIZE,
&error);
if (connection) {
if (!nm_connection_verify_secrets (connection, &error))
goto failure;
nm_settings_add_connection_dbus (self,
connection,
save_to_disk,
context,
impl_settings_add_connection_add_cb,
NULL);
g_object_unref (connection);
return;
}
failure:
g_assert (error);
g_dbus_method_invocation_take_error (context, error);
}
static void
impl_settings_add_connection (NMSettings *self,
GDBusMethodInvocation *context,
GVariant *settings)
{
impl_settings_add_connection_helper (self, context, settings, TRUE);
}
static void
impl_settings_add_connection_unsaved (NMSettings *self,
GDBusMethodInvocation *context,
GVariant *settings)
{
impl_settings_add_connection_helper (self, context, settings, FALSE);
}
static void
impl_settings_load_connections (NMSettings *self,
GDBusMethodInvocation *context,
char **filenames)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GPtrArray *failures;
GSList *iter;
int i;
/* 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_bus_manager_ensure_uid (nm_bus_manager_get (),
context,
G_MAXULONG,
NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED))
return;
failures = g_ptr_array_new ();
for (i = 0; filenames[i]; i++) {
for (iter = priv->plugins; iter; iter = g_slist_next (iter)) {
NMSettingsPlugin *plugin = NM_SETTINGS_PLUGIN (iter->data);
if (nm_settings_plugin_load_connection (plugin, filenames[i]))
break;
}
if (!iter) {
if (!g_path_is_absolute (filenames[i]))
_LOGW ("connection filename '%s' is not an absolute path", filenames[i]);
g_ptr_array_add (failures, (char *) filenames[i]);
}
}
g_ptr_array_add (failures, NULL);
g_dbus_method_invocation_return_value (
context,
g_variant_new ("(b^as)",
failures->len == 1,
failures->pdata));
g_ptr_array_unref (failures);
}
static void
impl_settings_reload_connections (NMSettings *self,
GDBusMethodInvocation *context)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GSList *iter;
/* 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_bus_manager_ensure_uid (nm_bus_manager_get (),
context,
G_MAXULONG,
NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED))
return;
for (iter = priv->plugins; iter; iter = g_slist_next (iter)) {
NMSettingsPlugin *plugin = NM_SETTINGS_PLUGIN (iter->data);
nm_settings_plugin_reload_connections (plugin);
}
g_dbus_method_invocation_return_value (context, g_variant_new ("(b)", TRUE));
}
/*****************************************************************************/
static void
pk_hostname_cb (NMAuthChain *chain,
GError *chain_error,
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;
g_assert (context);
priv->auths = g_slist_remove (priv->auths, chain);
result = nm_auth_chain_get_result (chain, NM_AUTH_PERMISSION_SETTINGS_MODIFY_HOSTNAME);
/* 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);
} else if (result != NM_AUTH_CALL_RESULT_YES) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
"Insufficient privileges.");
} else {
hostname = nm_auth_chain_get_data (chain, "hostname");
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.");
}
}
if (error)
g_dbus_method_invocation_take_error (context, error);
else
g_dbus_method_invocation_return_value (context, NULL);
nm_auth_chain_unref (chain);
}
static void
impl_settings_save_hostname (NMSettings *self,
GDBusMethodInvocation *context,
const char *hostname)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
NMAuthChain *chain;
GError *error = NULL;
/* Minimal validation of the hostname */
if (!nm_hostname_manager_validate_hostname (hostname)) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_INVALID_HOSTNAME,
"The hostname was too long or contained invalid characters.");
goto done;
}
chain = nm_auth_chain_new_context (context, pk_hostname_cb, self);
if (!chain) {
error = g_error_new_literal (NM_SETTINGS_ERROR,
NM_SETTINGS_ERROR_PERMISSION_DENIED,
"Unable to authenticate the request.");
goto done;
}
priv->auths = g_slist_append (priv->auths, 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);
done:
if (error)
g_dbus_method_invocation_take_error (context, error);
}
/*****************************************************************************/
static gboolean
have_connection_for_device (NMSettings *self, NMDevice *device)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
GHashTableIter iter;
gpointer data;
NMSettingConnection *s_con;
NMSettingWired *s_wired;
const char *setting_hwaddr;
const char *perm_hw_addr;
g_return_val_if_fail (NM_IS_SETTINGS (self), FALSE);
perm_hw_addr = nm_device_get_permanent_hw_address (device);
/* Find a wired connection locked to the given MAC address, if any */
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, &data)) {
NMConnection *connection = NM_CONNECTION (data);
const char *ctype, *iface;
if (!nm_device_check_connection_compatible (device, connection))
continue;
s_con = nm_connection_get_setting_connection (connection);
iface = nm_setting_connection_get_interface_name (s_con);
if (iface && strcmp (iface, nm_device_get_iface (device)) != 0)
continue;
ctype = nm_setting_connection_get_connection_type (s_con);
if ( strcmp (ctype, NM_SETTING_WIRED_SETTING_NAME)
&& strcmp (ctype, NM_SETTING_PPPOE_SETTING_NAME))
continue;
s_wired = nm_connection_get_setting_wired (connection);
if (!s_wired && !strcmp (ctype, NM_SETTING_PPPOE_SETTING_NAME)) {
/* No wired setting; therefore the PPPoE connection applies to any device */
return TRUE;
}
g_assert (s_wired != NULL);
setting_hwaddr = nm_setting_wired_get_mac_address (s_wired);
if (setting_hwaddr) {
/* A connection mac-locked to this device */
if ( perm_hw_addr
&& nm_utils_hwaddr_matches (setting_hwaddr, -1, perm_hw_addr, -1))
return TRUE;
} else {
/* A connection that applies to any wired device */
return TRUE;
}
}
/* See if there's a known non-NetworkManager configuration for the device */
if (nm_device_spec_match_list (device, priv->unrecognized_specs))
return TRUE;
return FALSE;
}
static void default_wired_clear_tag (NMSettings *self,
NMDevice *device,
NMSettingsConnection *connection,
gboolean add_to_no_auto_default);
static void
default_wired_connection_removed_cb (NMSettingsConnection *connection, NMSettings *self)
{
NMDevice *device;
/* When the default wired connection is removed (either deleted or saved to
* a new persistent connection by a plugin), write the MAC address of the
* wired device to the config file and don't create a new default wired
* connection for that device again.
*/
device = g_object_get_qdata (G_OBJECT (connection), _default_wired_device_quark ());
if (device)
default_wired_clear_tag (self, device, connection, TRUE);
}
static void
default_wired_connection_updated_by_user_cb (NMSettingsConnection *connection, gboolean by_user, NMSettings *self)
{
NMDevice *device;
if (!by_user)
return;
/* 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 = g_object_get_qdata (G_OBJECT (connection), _default_wired_device_quark ());
if (device)
default_wired_clear_tag (self, device, connection, FALSE);
}
static void
default_wired_clear_tag (NMSettings *self,
NMDevice *device,
NMSettingsConnection *connection,
gboolean add_to_no_auto_default)
{
g_return_if_fail (NM_IS_SETTINGS (self));
g_return_if_fail (NM_IS_DEVICE (device));
g_return_if_fail (NM_IS_CONNECTION (connection));
g_return_if_fail (device == g_object_get_qdata (G_OBJECT (connection), _default_wired_device_quark ()));
g_return_if_fail (connection == g_object_get_qdata (G_OBJECT (device), _default_wired_connection_quark ()));
g_object_set_qdata (G_OBJECT (connection), _default_wired_device_quark (), NULL);
g_object_set_qdata (G_OBJECT (device), _default_wired_connection_quark (), NULL);
g_signal_handlers_disconnect_by_func (connection, G_CALLBACK (default_wired_connection_removed_cb), self);
g_signal_handlers_disconnect_by_func (connection, G_CALLBACK (default_wired_connection_updated_by_user_cb), self);
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)
{
NMConnection *connection;
NMSettingsConnection *added;
GError *error = NULL;
if (!nm_device_is_real (device))
return;
g_signal_handlers_disconnect_by_func (device,
G_CALLBACK (device_realized),
self);
/* If the device isn't managed or it already has a default wired connection,
* ignore it.
*/
if ( !nm_device_get_managed (device, FALSE)
|| g_object_get_qdata (G_OBJECT (device), _default_wired_connection_quark ())
|| have_connection_for_device (self, device))
return;
connection = nm_device_new_default_connection (device);
if (!connection)
return;
/* Add the connection */
added = nm_settings_add_connection (self, connection, FALSE, &error);
g_object_unref (connection);
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;
}
g_object_set_qdata (G_OBJECT (added), _default_wired_device_quark (), device);
g_object_set_qdata (G_OBJECT (device), _default_wired_connection_quark (), added);
g_signal_connect (added, NM_SETTINGS_CONNECTION_UPDATED_INTERNAL,
G_CALLBACK (default_wired_connection_updated_by_user_cb), self);
g_signal_connect (added, NM_SETTINGS_CONNECTION_REMOVED,
G_CALLBACK (default_wired_connection_removed_cb), self);
_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 {
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, NULL);
}
}
/*****************************************************************************/
gboolean
nm_settings_get_startup_complete (NMSettings *self)
{
NMSettingsPrivate *priv = NM_SETTINGS_GET_PRIVATE (self);
return priv->startup_complete;
}
/*****************************************************************************/
static void
_hostname_changed_cb (NMHostnameManager *hostname_manager,
GParamSpec *pspec,
gpointer user_data)
{
_notify (user_data, PROP_HOSTNAME);
}
/*****************************************************************************/
gboolean
nm_settings_start (NMSettings *self, GError **error)
{
NMSettingsPrivate *priv;
gs_strfreev char **plugins = NULL;
priv = NM_SETTINGS_GET_PRIVATE (self);
/* 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 **) plugins, error)) {
g_object_unref (self);
return FALSE;
}
load_connections (self);
check_startup_complete (self);
priv->hostname_manager = g_object_ref (nm_hostname_manager_get ());
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);
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 GSList *specs, *iter;
GHashTableIter citer;
GPtrArray *array;
const char *path;
switch (prop_id) {
case PROP_UNMANAGED_SPECS:
array = g_ptr_array_new ();
specs = nm_settings_get_unmanaged_specs (self);
for (iter = specs; iter; iter = g_slist_next (iter))
g_ptr_array_add (array, g_strdup (iter->data));
g_ptr_array_add (array, NULL);
g_value_take_boxed (value, (char **) g_ptr_array_free (array, FALSE));
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, !!get_plugin (self, NM_SETTINGS_PLUGIN_CAP_MODIFY_CONNECTIONS));
break;
case PROP_CONNECTIONS:
array = g_ptr_array_sized_new (g_hash_table_size (priv->connections) + 1);
g_hash_table_iter_init (&citer, priv->connections);
while (g_hash_table_iter_next (&citer, (gpointer) &path, NULL))
g_ptr_array_add (array, g_strdup (path));
g_ptr_array_add (array, NULL);
g_value_take_boxed (value, (char **) g_ptr_array_free (array, FALSE));
break;
case PROP_STARTUP_COMPLETE:
g_value_set_boolean (value, nm_settings_get_startup_complete (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);
priv->connections = g_hash_table_new_full (nm_str_hash, g_str_equal, NULL, g_object_unref);
priv->agent_mgr = g_object_ref (nm_agent_manager_get ());
priv->config = g_object_ref (nm_config_get ());
}
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);
g_slist_free_full (priv->auths, (GDestroyNotify) nm_auth_chain_unref);
priv->auths = NULL;
g_object_unref (priv->agent_mgr);
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);
}
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);
g_hash_table_destroy (priv->connections);
g_clear_pointer (&priv->connections_cached_list, g_free);
g_slist_free_full (priv->unmanaged_specs, g_free);
g_slist_free_full (priv->unrecognized_specs, g_free);
g_slist_free_full (priv->plugins, g_object_unref);
g_clear_object (&priv->config);
G_OBJECT_CLASS (nm_settings_parent_class)->finalize (object);
}
static void
nm_settings_class_init (NMSettingsClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
NMExportedObjectClass *exported_object_class = NM_EXPORTED_OBJECT_CLASS (class);
exported_object_class->export_path = NM_DBUS_PATH_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_BOOLEAN);
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);
signals[NEW_CONNECTION] =
g_signal_new ("new-connection",
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);
nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (class),
NMDBUS_TYPE_SETTINGS_SKELETON,
"ListConnections", impl_settings_list_connections,
"GetConnectionByUuid", impl_settings_get_connection_by_uuid,
"AddConnection", impl_settings_add_connection,
"AddConnectionUnsaved", impl_settings_add_connection_unsaved,
"LoadConnections", impl_settings_load_connections,
"ReloadConnections", impl_settings_reload_connections,
"SaveHostname", impl_settings_save_hostname,
NULL);
}
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