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NetworkManager/src/nm-dispatcher.c
Thomas Haller 0d45284aa7 dispatcher: suppress log warning when nm-dispatcher is disabled in systemd 
When 'nm-dispatcher' is not running because its systemd service
'NetworkManager-dispatcher.service' is not enabled, any calls to the dispatcher
will fail with an error of typ DBUS_ERROR:DBUS_GERROR_REMOTE_EXCEPTION (32):

  "Unit dbus-org.freedesktop.nm-dispatcher.service failed to load: No such file or directory."

This clutters the logfile with warnings, although the user probably
disabled the service on purpose.

Special case this particular (recurring) failure and downgrade the warning
to debug level.

Signed-off-by: Thomas Haller <thaller@redhat.com>
2014-06-20 17:25:01 +02:00

769 lines
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
*
* 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 (C) 2004 - 2012 Red Hat, Inc.
* Copyright (C) 2005 - 2008 Novell, Inc.
*/
#include <glib.h>
#include <gio/gio.h>
#include <string.h>
#include <errno.h>
#include "nm-dispatcher.h"
#include "nm-dispatcher-api.h"
#include "NetworkManagerUtils.h"
#include "nm-utils.h"
#include "nm-logging.h"
#include "nm-dbus-manager.h"
#include "nm-dbus-glib-types.h"
#include "nm-glib-compat.h"
#define CALL_TIMEOUT (1000 * 60 * 10) /* 10 minutes for all scripts */
static GHashTable *requests = NULL;
typedef struct {
GFileMonitor *monitor;
const char *const description;
const char *const dir;
const guint16 dir_len;
char has_scripts;
} Monitor;
enum {
MONITOR_INDEX_DEFAULT,
MONITOR_INDEX_PRE_UP,
MONITOR_INDEX_PRE_DOWN,
};
static Monitor monitors[3] = {
#define MONITORS_INIT_SET(INDEX, USE, SCRIPT_DIR) [INDEX] = { .dir_len = STRLEN (SCRIPT_DIR), .dir = SCRIPT_DIR, .description = ("" USE), .has_scripts = TRUE }
MONITORS_INIT_SET (MONITOR_INDEX_DEFAULT, "default", NMD_SCRIPT_DIR_DEFAULT),
MONITORS_INIT_SET (MONITOR_INDEX_PRE_UP, "pre-up", NMD_SCRIPT_DIR_PRE_UP),
MONITORS_INIT_SET (MONITOR_INDEX_PRE_DOWN, "pre-down", NMD_SCRIPT_DIR_PRE_DOWN),
};
static const Monitor*
_get_monitor_by_action (DispatcherAction action)
{
switch (action) {
case DISPATCHER_ACTION_PRE_UP:
case DISPATCHER_ACTION_VPN_PRE_UP:
return &monitors[MONITOR_INDEX_PRE_UP];
case DISPATCHER_ACTION_PRE_DOWN:
case DISPATCHER_ACTION_VPN_PRE_DOWN:
return &monitors[MONITOR_INDEX_PRE_DOWN];
default:
return &monitors[MONITOR_INDEX_DEFAULT];
}
}
static void
dump_object_to_props (GObject *object, GHashTable *hash)
{
GParamSpec **pspecs;
guint len = 0, i;
pspecs = g_object_class_list_properties (G_OBJECT_GET_CLASS (object), &len);
for (i = 0; i < len; i++) {
value_hash_add_object_property (hash,
pspecs[i]->name,
object,
pspecs[i]->name,
pspecs[i]->value_type);
}
g_free (pspecs);
}
static void
dump_dhcp4_to_props (NMDHCP4Config *config, GHashTable *hash)
{
GSList *options, *iter;
options = nm_dhcp4_config_list_options (config);
for (iter = options; iter; iter = g_slist_next (iter)) {
const char *option = (const char *) iter->data;
const char *val;
val = nm_dhcp4_config_get_option (config, option);
value_hash_add_str (hash, option, val);
}
g_slist_free (options);
}
static void
dump_dhcp6_to_props (NMDHCP6Config *config, GHashTable *hash)
{
GSList *options, *iter;
options = nm_dhcp6_config_list_options (config);
for (iter = options; iter; iter = g_slist_next (iter)) {
const char *option = (const char *) iter->data;
const char *val;
val = nm_dhcp6_config_get_option (config, option);
value_hash_add_str (hash, option, val);
}
g_slist_free (options);
}
static void
fill_device_props (NMDevice *device,
GHashTable *dev_hash,
GHashTable *ip4_hash,
GHashTable *ip6_hash,
GHashTable *dhcp4_hash,
GHashTable *dhcp6_hash)
{
NMIP4Config *ip4_config;
NMIP6Config *ip6_config;
NMDHCP4Config *dhcp4_config;
NMDHCP6Config *dhcp6_config;
/* If the action is for a VPN, send the VPN's IP interface instead of the device's */
value_hash_add_str (dev_hash, NMD_DEVICE_PROPS_IP_INTERFACE, nm_device_get_ip_iface (device));
value_hash_add_str (dev_hash, NMD_DEVICE_PROPS_INTERFACE, nm_device_get_iface (device));
value_hash_add_uint (dev_hash, NMD_DEVICE_PROPS_TYPE, nm_device_get_device_type (device));
value_hash_add_uint (dev_hash, NMD_DEVICE_PROPS_STATE, nm_device_get_state (device));
value_hash_add_object_path (dev_hash, NMD_DEVICE_PROPS_PATH, nm_device_get_path (device));
ip4_config = nm_device_get_ip4_config (device);
if (ip4_config)
dump_object_to_props (G_OBJECT (ip4_config), ip4_hash);
ip6_config = nm_device_get_ip6_config (device);
if (ip6_config)
dump_object_to_props (G_OBJECT (ip6_config), ip6_hash);
dhcp4_config = nm_device_get_dhcp4_config (device);
if (dhcp4_config)
dump_dhcp4_to_props (dhcp4_config, dhcp4_hash);
dhcp6_config = nm_device_get_dhcp6_config (device);
if (dhcp6_config)
dump_dhcp6_to_props (dhcp6_config, dhcp6_hash);
}
static void
fill_vpn_props (NMIP4Config *ip4_config,
NMIP6Config *ip6_config,
GHashTable *ip4_hash,
GHashTable *ip6_hash)
{
if (ip4_config)
dump_object_to_props (G_OBJECT (ip4_config), ip4_hash);
if (ip6_config)
dump_object_to_props (G_OBJECT (ip6_config), ip6_hash);
}
typedef struct {
DispatcherAction action;
guint request_id;
DispatcherFunc callback;
gpointer user_data;
guint idle_id;
} DispatchInfo;
static void
dispatcher_info_free (DispatchInfo *info)
{
if (info->idle_id)
g_source_remove (info->idle_id);
g_free (info);
}
static void
_ensure_requests (void)
{
if (G_UNLIKELY (requests == NULL)) {
requests = g_hash_table_new_full (g_direct_hash,
g_direct_equal,
NULL,
(GDestroyNotify) dispatcher_info_free);
}
}
static void
dispatcher_info_cleanup (DispatchInfo *info)
{
g_hash_table_remove (requests, GUINT_TO_POINTER (info->request_id));
}
static const char *
dispatch_result_to_string (DispatchResult result)
{
switch (result) {
case DISPATCH_RESULT_UNKNOWN:
return "unknown";
case DISPATCH_RESULT_SUCCESS:
return "success";
case DISPATCH_RESULT_EXEC_FAILED:
return "exec failed";
case DISPATCH_RESULT_FAILED:
return "failed";
case DISPATCH_RESULT_TIMEOUT:
return "timed out";
}
g_assert_not_reached ();
}
static gboolean
validate_element (guint request_id, GValue *val, GType expected_type, guint idx, guint eltnum)
{
if (G_VALUE_TYPE (val) != expected_type) {
nm_log_dbg (LOGD_DISPATCH, "(%u) result %d element %d invalid type %s",
request_id, idx, eltnum, G_VALUE_TYPE_NAME (val));
return FALSE;
}
return TRUE;
}
static void
dispatcher_results_process (guint request_id, DispatcherAction action, GPtrArray *results)
{
guint i;
const Monitor *monitor = _get_monitor_by_action (action);
g_return_if_fail (results != NULL);
if (results->len == 0) {
nm_log_dbg (LOGD_DISPATCH, "(%u) succeeded but no scripts invoked",
request_id);
return;
}
for (i = 0; i < results->len; i++) {
GValueArray *item = g_ptr_array_index (results, i);
GValue *tmp;
const char *script, *err;
DispatchResult result;
const char *script_validation_msg = "";
if (item->n_values != 3) {
nm_log_dbg (LOGD_DISPATCH, "(%u) unexpected number of items in "
"dispatcher result (got %d, expected 3)",
request_id, item->n_values);
continue;
}
/* Script */
tmp = g_value_array_get_nth (item, 0);
if (!validate_element (request_id, tmp, G_TYPE_STRING, i, 0))
continue;
script = g_value_get_string (tmp);
if (!script) {
script_validation_msg = " (path is NULL)";
script = "(unknown)";
} else if (!strncmp (script, monitor->dir, monitor->dir_len) /* check: prefixed by script directory */
&& script[monitor->dir_len] == '/' && script[monitor->dir_len+1] /* check: with additional "/?" */
&& !strchr (&script[monitor->dir_len+1], '/')) { /* check: and no further '/' */
/* we expect the script to lie inside monitor->dir. If it does,
* strip the directory name. Otherwise show the full path and a warning. */
script += monitor->dir_len + 1;
} else
script_validation_msg = " (unexpected path)";
/* Result */
tmp = g_value_array_get_nth (item, 1);
if (!validate_element (request_id, tmp, G_TYPE_UINT, i, 1))
continue;
result = g_value_get_uint (tmp);
/* Error */
tmp = g_value_array_get_nth (item, 2);
if (!validate_element (request_id, tmp, G_TYPE_STRING, i, 2))
continue;
err = g_value_get_string (tmp);
if (result == DISPATCH_RESULT_SUCCESS) {
nm_log_dbg (LOGD_DISPATCH, "(%u) %s succeeded%s",
request_id,
script, script_validation_msg);
} else {
nm_log_warn (LOGD_DISPATCH, "(%u) %s failed (%s): %s%s",
request_id,
script,
dispatch_result_to_string (result),
err ? err : "", script_validation_msg);
}
}
}
static void
free_results (GPtrArray *results)
{
g_return_if_fail (results != NULL);
g_ptr_array_foreach (results, (GFunc) g_value_array_free, NULL);
g_ptr_array_free (results, TRUE);
}
static void
dispatcher_done_cb (DBusGProxy *proxy, DBusGProxyCall *call, gpointer user_data)
{
DispatchInfo *info = user_data;
GError *error = NULL;
GPtrArray *results = NULL;
if (dbus_g_proxy_end_call (proxy, call, &error,
DISPATCHER_TYPE_RESULT_ARRAY, &results,
G_TYPE_INVALID)) {
dispatcher_results_process (info->request_id, info->action, results);
free_results (results);
} else {
g_assert (error);
if (!g_error_matches (error, DBUS_GERROR, DBUS_GERROR_REMOTE_EXCEPTION)) {
nm_log_warn (LOGD_DISPATCH, "(%u) failed to call dispatcher scripts: (%s:%d) %s",
info->request_id, g_quark_to_string (error->domain),
error->code, error->message);
} else if (!dbus_g_error_has_name (error, "org.freedesktop.systemd1.LoadFailed")) {
nm_log_warn (LOGD_DISPATCH, "(%u) failed to call dispatcher scripts: (%s) %s",
info->request_id, dbus_g_error_get_name (error), error->message);
} else {
nm_log_dbg (LOGD_DISPATCH, "(%u) failed to call dispatcher scripts: (%s) %s",
info->request_id, dbus_g_error_get_name (error), error->message);
}
}
if (info->callback)
info->callback (info->request_id, info->user_data);
g_clear_error (&error);
g_object_unref (proxy);
}
static const char *action_table[] = {
[DISPATCHER_ACTION_HOSTNAME] = NMD_ACTION_HOSTNAME,
[DISPATCHER_ACTION_PRE_UP] = NMD_ACTION_PRE_UP,
[DISPATCHER_ACTION_UP] = NMD_ACTION_UP,
[DISPATCHER_ACTION_PRE_DOWN] = NMD_ACTION_PRE_DOWN,
[DISPATCHER_ACTION_DOWN] = NMD_ACTION_DOWN,
[DISPATCHER_ACTION_VPN_PRE_UP] = NMD_ACTION_VPN_PRE_UP,
[DISPATCHER_ACTION_VPN_UP] = NMD_ACTION_VPN_UP,
[DISPATCHER_ACTION_VPN_PRE_DOWN] = NMD_ACTION_VPN_PRE_DOWN,
[DISPATCHER_ACTION_VPN_DOWN] = NMD_ACTION_VPN_DOWN,
[DISPATCHER_ACTION_DHCP4_CHANGE] = NMD_ACTION_DHCP4_CHANGE,
[DISPATCHER_ACTION_DHCP6_CHANGE] = NMD_ACTION_DHCP6_CHANGE,
};
static const char *
action_to_string (DispatcherAction action)
{
g_assert (action >= 0 && action < G_N_ELEMENTS (action_table));
return action_table[action];
}
static gboolean
dispatcher_idle_cb (gpointer user_data)
{
DispatchInfo *info = user_data;
info->idle_id = 0;
if (info->callback)
info->callback (info->request_id, info->user_data);
dispatcher_info_cleanup (info);
return G_SOURCE_REMOVE;
}
static gboolean
_dispatcher_call (DispatcherAction action,
gboolean blocking,
NMConnection *connection,
NMDevice *device,
const char *vpn_iface,
NMIP4Config *vpn_ip4_config,
NMIP6Config *vpn_ip6_config,
DispatcherFunc callback,
gpointer user_data,
guint *out_call_id)
{
DBusGProxy *proxy;
DBusGConnection *g_connection;
GHashTable *connection_hash;
GHashTable *connection_props;
GHashTable *device_props;
GHashTable *device_ip4_props;
GHashTable *device_ip6_props;
GHashTable *device_dhcp4_props;
GHashTable *device_dhcp6_props;
GHashTable *vpn_ip4_props;
GHashTable *vpn_ip6_props;
DispatchInfo *info = NULL;
gboolean success = FALSE;
GError *error = NULL;
static guint request_counter = 0;
guint reqid = ++request_counter;
/* Wrapping protection */
if (G_UNLIKELY (!reqid))
reqid = ++request_counter;
g_assert (!blocking || (!callback && !user_data));
_ensure_requests ();
/* All actions except 'hostname' require a device */
if (action == DISPATCHER_ACTION_HOSTNAME) {
nm_log_dbg (LOGD_DISPATCH, "(%u) dispatching action '%s'%s",
reqid, action_to_string (action),
blocking
? " (blocking)"
: (callback ? " (with callback)" : ""));
} else {
g_return_val_if_fail (NM_IS_DEVICE (device), FALSE);
nm_log_dbg (LOGD_DISPATCH, "(%u) (%s) dispatching action '%s'%s",
reqid,
vpn_iface ? vpn_iface : nm_device_get_iface (device),
action_to_string (action),
blocking
? " (blocking)"
: (callback ? " (with callback)" : ""));
}
/* VPN actions require at least an IPv4 config (for now) */
if (action == DISPATCHER_ACTION_VPN_UP)
g_return_val_if_fail (vpn_ip4_config != NULL, FALSE);
if (!_get_monitor_by_action(action)->has_scripts) {
if (blocking == FALSE && (out_call_id || callback)) {
info = g_malloc0 (sizeof (*info));
info->action = action;
info->request_id = reqid;
info->callback = callback;
info->user_data = user_data;
info->idle_id = g_idle_add (dispatcher_idle_cb, info);
nm_log_dbg (LOGD_DISPATCH, "(%u) simulate request; no scripts in %s", reqid, _get_monitor_by_action(action)->dir);
} else
nm_log_dbg (LOGD_DISPATCH, "(%u) ignoring request; no scripts in %s", reqid, _get_monitor_by_action(action)->dir);
success = TRUE;
goto done;
}
g_connection = nm_dbus_manager_get_connection (nm_dbus_manager_get ());
proxy = dbus_g_proxy_new_for_name (g_connection,
NM_DISPATCHER_DBUS_SERVICE,
NM_DISPATCHER_DBUS_PATH,
NM_DISPATCHER_DBUS_IFACE);
if (!proxy) {
nm_log_err (LOGD_DISPATCH, "(%u) could not get dispatcher proxy!", reqid);
return FALSE;
}
if (connection) {
connection_hash = nm_connection_to_hash (connection, NM_SETTING_HASH_FLAG_NO_SECRETS);
connection_props = value_hash_create ();
value_hash_add_object_path (connection_props,
NMD_CONNECTION_PROPS_PATH,
nm_connection_get_path (connection));
} else {
connection_hash = value_hash_create ();
connection_props = value_hash_create ();
}
device_props = value_hash_create ();
device_ip4_props = value_hash_create ();
device_ip6_props = value_hash_create ();
device_dhcp4_props = value_hash_create ();
device_dhcp6_props = value_hash_create ();
vpn_ip4_props = value_hash_create ();
vpn_ip6_props = value_hash_create ();
/* hostname actions only send the hostname */
if (action != DISPATCHER_ACTION_HOSTNAME) {
fill_device_props (device,
device_props,
device_ip4_props,
device_ip6_props,
device_dhcp4_props,
device_dhcp6_props);
if (vpn_ip4_config || vpn_ip6_config)
fill_vpn_props (vpn_ip4_config, vpn_ip6_config, vpn_ip4_props, vpn_ip6_props);
}
/* Send the action to the dispatcher */
if (blocking) {
GPtrArray *results = NULL;
success = dbus_g_proxy_call_with_timeout (proxy, "Action",
CALL_TIMEOUT,
&error,
G_TYPE_STRING, action_to_string (action),
DBUS_TYPE_G_MAP_OF_MAP_OF_VARIANT, connection_hash,
DBUS_TYPE_G_MAP_OF_VARIANT, connection_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_ip4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_ip6_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_dhcp4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_dhcp6_props,
G_TYPE_STRING, vpn_iface ? vpn_iface : "",
DBUS_TYPE_G_MAP_OF_VARIANT, vpn_ip4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, vpn_ip6_props,
G_TYPE_BOOLEAN, nm_logging_enabled (LOGL_DEBUG, LOGD_DISPATCH),
G_TYPE_INVALID,
DISPATCHER_TYPE_RESULT_ARRAY, &results,
G_TYPE_INVALID);
if (success) {
dispatcher_results_process (reqid, action, results);
free_results (results);
} else {
nm_log_warn (LOGD_DISPATCH, "(%u) failed: (%d) %s", reqid, error->code, error->message);
g_error_free (error);
}
} else {
info = g_malloc0 (sizeof (*info));
info->action = action;
info->request_id = reqid;
info->callback = callback;
info->user_data = user_data;
dbus_g_proxy_begin_call_with_timeout (proxy, "Action",
dispatcher_done_cb,
info,
(GDestroyNotify) dispatcher_info_cleanup,
CALL_TIMEOUT,
G_TYPE_STRING, action_to_string (action),
DBUS_TYPE_G_MAP_OF_MAP_OF_VARIANT, connection_hash,
DBUS_TYPE_G_MAP_OF_VARIANT, connection_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_ip4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_ip6_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_dhcp4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, device_dhcp6_props,
G_TYPE_STRING, vpn_iface ? vpn_iface : "",
DBUS_TYPE_G_MAP_OF_VARIANT, vpn_ip4_props,
DBUS_TYPE_G_MAP_OF_VARIANT, vpn_ip6_props,
G_TYPE_BOOLEAN, nm_logging_enabled (LOGL_DEBUG, LOGD_DISPATCH),
G_TYPE_INVALID);
success = TRUE;
}
g_hash_table_destroy (connection_hash);
g_hash_table_destroy (connection_props);
g_hash_table_destroy (device_props);
g_hash_table_destroy (device_ip4_props);
g_hash_table_destroy (device_ip6_props);
g_hash_table_destroy (device_dhcp4_props);
g_hash_table_destroy (device_dhcp6_props);
g_hash_table_destroy (vpn_ip4_props);
g_hash_table_destroy (vpn_ip6_props);
done:
if (success && info) {
/* Track the request in case of cancelation */
g_hash_table_insert (requests, GUINT_TO_POINTER (info->request_id), info);
if (out_call_id)
*out_call_id = info->request_id;
} else if (out_call_id)
*out_call_id = 0;
return success;
}
/**
* nm_dispatcher_call:
* @action: the %DispatcherAction
* @connection: the #NMConnection the action applies to
* @device: the #NMDevice the action applies to
* @callback: a caller-supplied callback to execute when done
* @user_data: caller-supplied pointer passed to @callback
* @out_call_id: on success, a call identifier which can be passed to
* nm_dispatcher_call_cancel()
*
* This method always invokes the dispatcher action asynchronously. To ignore
* the result, pass %NULL to @callback.
*
* Returns: %TRUE if the action was dispatched, %FALSE on failure
*/
gboolean
nm_dispatcher_call (DispatcherAction action,
NMConnection *connection,
NMDevice *device,
DispatcherFunc callback,
gpointer user_data,
guint *out_call_id)
{
return _dispatcher_call (action, FALSE, connection, device, NULL, NULL,
NULL, callback, user_data, out_call_id);
}
/**
* nm_dispatcher_call_sync():
* @action: the %DispatcherAction
* @connection: the #NMConnection the action applies to
* @device: the #NMDevice the action applies to
*
* This method always invokes the dispatcher action synchronously and it may
* take a long time to return.
*
* Returns: %TRUE if the action was dispatched, %FALSE on failure
*/
gboolean
nm_dispatcher_call_sync (DispatcherAction action,
NMConnection *connection,
NMDevice *device)
{
return _dispatcher_call (action, TRUE, connection, device, NULL, NULL,
NULL, NULL, NULL, NULL);
}
/**
* nm_dispatcher_call_vpn():
* @action: the %DispatcherAction
* @connection: the #NMConnection the action applies to
* @parent_device: the parent #NMDevice of the VPN connection
* @vpn_iface: the IP interface of the VPN tunnel, if any
* @vpn_ip4_config: the #NMIP4Config of the VPN connection
* @vpn_ip6_config: the #NMIP6Config of the VPN connection
* @callback: a caller-supplied callback to execute when done
* @user_data: caller-supplied pointer passed to @callback
* @out_call_id: on success, a call identifier which can be passed to
* nm_dispatcher_call_cancel()
*
* This method always invokes the dispatcher action asynchronously. To ignore
* the result, pass %NULL to @callback.
*
* Returns: %TRUE if the action was dispatched, %FALSE on failure
*/
gboolean
nm_dispatcher_call_vpn (DispatcherAction action,
NMConnection *connection,
NMDevice *parent_device,
const char *vpn_iface,
NMIP4Config *vpn_ip4_config,
NMIP6Config *vpn_ip6_config,
DispatcherFunc callback,
gpointer user_data,
guint *out_call_id)
{
return _dispatcher_call (action, FALSE, connection, parent_device, vpn_iface,
vpn_ip4_config, vpn_ip6_config, callback, user_data, out_call_id);
}
/**
* nm_dispatcher_call_vpn_sync():
* @action: the %DispatcherAction
* @connection: the #NMConnection the action applies to
* @parent_device: the parent #NMDevice of the VPN connection
* @vpn_iface: the IP interface of the VPN tunnel, if any
* @vpn_ip4_config: the #NMIP4Config of the VPN connection
* @vpn_ip6_config: the #NMIP6Config of the VPN connection
*
* This method always invokes the dispatcher action synchronously and it may
* take a long time to return.
*
* Returns: %TRUE if the action was dispatched, %FALSE on failure
*/
gboolean
nm_dispatcher_call_vpn_sync (DispatcherAction action,
NMConnection *connection,
NMDevice *parent_device,
const char *vpn_iface,
NMIP4Config *vpn_ip4_config,
NMIP6Config *vpn_ip6_config)
{
return _dispatcher_call (action, TRUE, connection, parent_device, vpn_iface,
vpn_ip4_config, vpn_ip6_config, NULL, NULL, NULL);
}
void
nm_dispatcher_call_cancel (guint call_id)
{
DispatchInfo *info;
_ensure_requests ();
/* Canceling just means the callback doesn't get called, so set the
* DispatcherInfo's callback to NULL.
*/
info = g_hash_table_lookup (requests, GUINT_TO_POINTER (call_id));
g_return_if_fail (info);
if (info && info->callback) {
nm_log_dbg (LOGD_DISPATCH, "(%u) cancelling dispatcher callback action",
call_id);
info->callback = NULL;
}
}
static void
dispatcher_dir_changed (GFileMonitor *monitor,
GFile *file,
GFile *other_file,
GFileMonitorEvent event_type,
Monitor *item)
{
const char *name;
char *full_name;
GDir *dir;
GError *error = NULL;
dir = g_dir_open (item->dir, 0, &error);
if (dir) {
int errsv = 0;
item->has_scripts = FALSE;
errno = 0;
while (!item->has_scripts
&& (name = g_dir_read_name (dir))) {
full_name = g_build_filename (item->dir, name, NULL);
item->has_scripts = g_file_test (full_name, G_FILE_TEST_IS_EXECUTABLE);
g_free (full_name);
}
errsv = errno;
g_dir_close (dir);
if (item->has_scripts)
nm_log_dbg (LOGD_DISPATCH, "dispatcher: %s script directory '%s' has scripts", item->description, item->dir);
else if (errsv == 0)
nm_log_dbg (LOGD_DISPATCH, "dispatcher: %s script directory '%s' has no scripts", item->description, item->dir);
else {
nm_log_dbg (LOGD_DISPATCH, "dispatcher: %s script directory '%s' error reading (%s)", item->description, item->dir, strerror (errsv));
item->has_scripts = TRUE;
}
} else {
if (g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT)) {
nm_log_dbg (LOGD_DISPATCH, "dispatcher: %s script directory '%s' does not exist", item->description, item->dir);
item->has_scripts = FALSE;
} else {
nm_log_dbg (LOGD_DISPATCH, "dispatcher: %s script directory '%s' error (%s)", item->description, item->dir, error->message);
item->has_scripts = TRUE;
}
g_error_free (error);
}
}
void
nm_dispatcher_init (void)
{
GFile *file;
guint i;
for (i = 0; i < G_N_ELEMENTS (monitors); i++) {
file = g_file_new_for_path (monitors[i].dir);
monitors[i].monitor = g_file_monitor_directory (file, G_FILE_MONITOR_NONE, NULL, NULL);
if (monitors[i].monitor) {
g_signal_connect (monitors[i].monitor, "changed", G_CALLBACK (dispatcher_dir_changed), &monitors[i]);
dispatcher_dir_changed (monitors[i].monitor, file, NULL, 0, &monitors[i]);
}
g_object_unref (file);
}
}
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