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Diffstat (limited to 'src/settings/plugins/ifupdown/plugin.c')
-rw-r--r--src/settings/plugins/ifupdown/plugin.c727
1 files changed, 727 insertions, 0 deletions
diff --git a/src/settings/plugins/ifupdown/plugin.c b/src/settings/plugins/ifupdown/plugin.c
new file mode 100644
index 000000000..9679edeac
--- /dev/null
+++ b/src/settings/plugins/ifupdown/plugin.c
@@ -0,0 +1,727 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+
+/* NetworkManager system settings service (ifupdown)
+ *
+ * Alexander Sack <asac@ubuntu.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 2007,2008 Canonical Ltd.
+ * (C) Copyright 2009 Red Hat, Inc.
+ */
+
+#include <string.h>
+#include <sys/inotify.h>
+
+#include <net/ethernet.h>
+#include <netinet/ether.h>
+
+#include <gmodule.h>
+#include <glib-object.h>
+#include <glib/gi18n.h>
+#include <glib.h>
+#include <nm-setting-connection.h>
+
+#include "interface_parser.h"
+
+#include "NetworkManager.h"
+#include "nm-system-config-interface.h"
+#include "nm-setting-ip4-config.h"
+#include "nm-setting-wireless.h"
+#include "nm-setting-wired.h"
+#include "nm-setting-ppp.h"
+
+#include "nm-ifupdown-connection.h"
+#include "plugin.h"
+#include "parser.h"
+#include "nm-inotify-helper.h"
+
+#include "nm-logging.h"
+
+#include <arpa/inet.h>
+
+#include <gudev/gudev.h>
+
+#define ENI_INTERFACES_FILE "/etc/network/interfaces"
+
+#define IFUPDOWN_PLUGIN_NAME "ifupdown"
+#define IFUPDOWN_PLUGIN_INFO "(C) 2008 Canonical Ltd. To report bugs please use the NetworkManager mailing list."
+#define IFUPDOWN_SYSTEM_HOSTNAME_FILE "/etc/hostname"
+
+#define IFUPDOWN_SYSTEM_SETTINGS_KEY_FILE SYSCONFDIR "/NetworkManager/NetworkManager.conf"
+#define IFUPDOWN_OLD_SYSTEM_SETTINGS_KEY_FILE SYSCONFDIR "/NetworkManager/nm-system-settings.conf"
+
+#define IFUPDOWN_KEY_FILE_GROUP "ifupdown"
+#define IFUPDOWN_KEY_FILE_KEY_MANAGED "managed"
+#define IFUPDOWN_UNMANAGE_WELL_KNOWN_DEFAULT TRUE
+
+/* #define ALWAYS_UNMANAGE TRUE */
+#ifndef ALWAYS_UNMANAGE
+# define ALWAYS_UNMANAGE FALSE
+#endif
+
+typedef struct {
+ GUdevClient *client;
+
+ GHashTable *iface_connections;
+ gchar* hostname;
+
+ GHashTable *well_known_interfaces;
+ GHashTable *well_known_ifaces;
+ gboolean unmanage_well_known;
+ const char *conf_file;
+
+ gulong inotify_event_id;
+ int inotify_system_hostname_wd;
+} SCPluginIfupdownPrivate;
+
+static void
+system_config_interface_init (NMSystemConfigInterface *system_config_interface_class);
+
+G_DEFINE_TYPE_EXTENDED (SCPluginIfupdown, sc_plugin_ifupdown, G_TYPE_OBJECT, 0,
+ G_IMPLEMENT_INTERFACE (NM_TYPE_SYSTEM_CONFIG_INTERFACE,
+ system_config_interface_init))
+
+#define SC_PLUGIN_IFUPDOWN_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), SC_TYPE_PLUGIN_IFUPDOWN, SCPluginIfupdownPrivate))
+
+static void
+sc_plugin_ifupdown_class_init (SCPluginIfupdownClass *req_class);
+
+static void
+SCPluginIfupdown_init (NMSystemConfigInterface *config);
+
+/* Returns the plugins currently known list of connections. The returned
+ * list is freed by the system settings service.
+ */
+static GSList*
+SCPluginIfupdown_get_connections (NMSystemConfigInterface *config);
+
+/*
+ * Return a list of device specifications which NetworkManager should not
+ * manage. Returned list will be freed by the system settings service, and
+ * each element must be allocated using g_malloc() or its variants.
+ */
+static GSList*
+SCPluginIfupdown_get_unmanaged_specs (NMSystemConfigInterface *config);
+
+
+/* GObject */
+static void
+GObject__get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec);
+
+static void
+GObject__set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec);
+
+static void
+GObject__dispose (GObject *object);
+
+/* other helpers */
+static const char *
+get_hostname (NMSystemConfigInterface *config);
+
+
+static void
+update_system_hostname(NMInotifyHelper *inotify_helper,
+ struct inotify_event *evt,
+ const char *path,
+ NMSystemConfigInterface *config);
+
+
+static void
+system_config_interface_init (NMSystemConfigInterface *system_config_interface_class)
+{
+ system_config_interface_class->init = SCPluginIfupdown_init;
+ system_config_interface_class->get_connections = SCPluginIfupdown_get_connections;
+ system_config_interface_class->get_unmanaged_specs = SCPluginIfupdown_get_unmanaged_specs;
+}
+
+static void
+sc_plugin_ifupdown_class_init (SCPluginIfupdownClass *req_class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (req_class);
+
+ g_type_class_add_private (req_class, sizeof (SCPluginIfupdownPrivate));
+
+ object_class->dispose = GObject__dispose;
+ object_class->get_property = GObject__get_property;
+ object_class->set_property = GObject__set_property;
+
+ g_object_class_override_property (object_class,
+ NM_SYSTEM_CONFIG_INTERFACE_PROP_NAME,
+ NM_SYSTEM_CONFIG_INTERFACE_NAME);
+
+ g_object_class_override_property (object_class,
+ NM_SYSTEM_CONFIG_INTERFACE_PROP_INFO,
+ NM_SYSTEM_CONFIG_INTERFACE_INFO);
+
+ g_object_class_override_property (object_class,
+ NM_SYSTEM_CONFIG_INTERFACE_PROP_CAPABILITIES,
+ NM_SYSTEM_CONFIG_INTERFACE_CAPABILITIES);
+
+ g_object_class_override_property (object_class,
+ NM_SYSTEM_CONFIG_INTERFACE_PROP_HOSTNAME,
+ NM_SYSTEM_CONFIG_INTERFACE_HOSTNAME);
+}
+
+static void
+ignore_cb (NMSettingsConnection *connection,
+ GError *error,
+ gpointer user_data)
+{
+}
+
+static void
+bind_device_to_connection (SCPluginIfupdown *self,
+ GUdevDevice *device,
+ NMIfupdownConnection *exported)
+{
+ GByteArray *mac_address;
+ NMSetting *s_wired = NULL;
+ NMSetting *s_wifi = NULL;
+ const char *iface, *address;
+ struct ether_addr *tmp_mac;
+
+ iface = g_udev_device_get_name (device);
+ if (!iface) {
+ PLUGIN_WARN ("SCPluginIfupdown", "failed to get ifname for device.");
+ return;
+ }
+
+ address = g_udev_device_get_sysfs_attr (device, "address");
+ if (!address || !strlen (address)) {
+ PLUGIN_WARN ("SCPluginIfupdown", "failed to get MAC address for %s", iface);
+ return;
+ }
+
+ tmp_mac = ether_aton (address);
+ if (!tmp_mac) {
+ PLUGIN_WARN ("SCPluginIfupdown", "failed to parse MAC address '%s' for %s",
+ address, iface);
+ return;
+ }
+
+ mac_address = g_byte_array_sized_new (ETH_ALEN);
+ g_byte_array_append (mac_address, &(tmp_mac->ether_addr_octet[0]), ETH_ALEN);
+
+ s_wired = nm_connection_get_setting (NM_CONNECTION (exported), NM_TYPE_SETTING_WIRED);
+ s_wifi = nm_connection_get_setting (NM_CONNECTION (exported), NM_TYPE_SETTING_WIRELESS);
+ if (s_wired) {
+ PLUGIN_PRINT ("SCPluginIfupdown", "locking wired connection setting");
+ g_object_set (s_wired, NM_SETTING_WIRED_MAC_ADDRESS, mac_address, NULL);
+ } else if (s_wifi) {
+ PLUGIN_PRINT ("SCPluginIfupdown", "locking wireless connection setting");
+ g_object_set (s_wifi, NM_SETTING_WIRELESS_MAC_ADDRESS, mac_address, NULL);
+ }
+ g_byte_array_free (mac_address, TRUE);
+
+ nm_settings_connection_commit_changes (NM_SETTINGS_CONNECTION (exported), ignore_cb, NULL);
+}
+
+static void
+udev_device_added (SCPluginIfupdown *self, GUdevDevice *device)
+{
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (self);
+ const char *iface, *path;
+ NMIfupdownConnection *exported;
+
+ iface = g_udev_device_get_name (device);
+ path = g_udev_device_get_sysfs_path (device);
+ if (!iface || !path)
+ return;
+
+ PLUGIN_PRINT("SCPlugin-Ifupdown",
+ "devices added (path: %s, iface: %s)", path, iface);
+
+ /* if we have a configured connection for this particular iface
+ * we want to either unmanage the device or lock it
+ */
+ exported = (NMIfupdownConnection *) g_hash_table_lookup (priv->iface_connections, iface);
+ if (!exported && !g_hash_table_lookup (priv->well_known_interfaces, iface)) {
+ PLUGIN_PRINT("SCPlugin-Ifupdown",
+ "device added (path: %s, iface: %s): no ifupdown configuration found.", path, iface);
+ return;
+ }
+
+ g_hash_table_insert (priv->well_known_ifaces, g_strdup (iface), g_object_ref (device));
+
+ if (exported)
+ bind_device_to_connection (self, device, exported);
+
+ if (ALWAYS_UNMANAGE || priv->unmanage_well_known)
+ g_signal_emit_by_name (G_OBJECT (self), NM_SYSTEM_CONFIG_INTERFACE_UNMANAGED_SPECS_CHANGED);
+}
+
+static void
+udev_device_removed (SCPluginIfupdown *self, GUdevDevice *device)
+{
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (self);
+ const char *iface, *path;
+
+ iface = g_udev_device_get_name (device);
+ path = g_udev_device_get_sysfs_path (device);
+ if (!iface || !path)
+ return;
+
+ PLUGIN_PRINT("SCPlugin-Ifupdown",
+ "devices removed (path: %s, iface: %s)", path, iface);
+
+ if (!g_hash_table_remove (priv->well_known_ifaces, iface))
+ return;
+
+ if (ALWAYS_UNMANAGE || priv->unmanage_well_known)
+ g_signal_emit_by_name (G_OBJECT (self), NM_SYSTEM_CONFIG_INTERFACE_UNMANAGED_SPECS_CHANGED);
+}
+
+static void
+handle_uevent (GUdevClient *client,
+ const char *action,
+ GUdevDevice *device,
+ gpointer user_data)
+{
+ SCPluginIfupdown *self = SC_PLUGIN_IFUPDOWN (user_data);
+ const char *subsys;
+
+ g_return_if_fail (action != NULL);
+
+ /* A bit paranoid */
+ subsys = g_udev_device_get_subsystem (device);
+ g_return_if_fail (subsys != NULL);
+ g_return_if_fail (strcmp (subsys, "net") == 0);
+
+ if (!strcmp (action, "add"))
+ udev_device_added (self, device);
+ else if (!strcmp (action, "remove"))
+ udev_device_removed (self, device);
+}
+
+static void
+SCPluginIfupdown_init (NMSystemConfigInterface *config)
+{
+ SCPluginIfupdown *self = SC_PLUGIN_IFUPDOWN (config);
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (self);
+ GHashTable *auto_ifaces;
+ if_block *block = NULL;
+ NMInotifyHelper *inotify_helper;
+ GKeyFile* keyfile;
+ GError *error = NULL;
+ GList *keys, *iter;
+ const char *subsys[2] = { "net", NULL };
+
+ auto_ifaces = g_hash_table_new (g_str_hash, g_str_equal);
+
+ if(!priv->iface_connections)
+ priv->iface_connections = g_hash_table_new (g_str_hash, g_str_equal);
+
+ if(!priv->well_known_ifaces)
+ priv->well_known_ifaces = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
+
+ if(!priv->well_known_interfaces)
+ priv->well_known_interfaces = g_hash_table_new (g_str_hash, g_str_equal);
+
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "init!");
+
+ priv->client = g_udev_client_new (subsys);
+ if (!priv->client) {
+ PLUGIN_WARN ("SCPlugin-Ifupdown", " error initializing libgudev");
+ } else
+ g_signal_connect (priv->client, "uevent", G_CALLBACK (handle_uevent), self);
+
+ priv->unmanage_well_known = IFUPDOWN_UNMANAGE_WELL_KNOWN_DEFAULT;
+
+ inotify_helper = nm_inotify_helper_get ();
+ priv->inotify_event_id = g_signal_connect (inotify_helper,
+ "event",
+ G_CALLBACK (update_system_hostname),
+ config);
+
+ priv->inotify_system_hostname_wd =
+ nm_inotify_helper_add_watch (inotify_helper, IFUPDOWN_SYSTEM_HOSTNAME_FILE);
+
+ update_system_hostname (inotify_helper, NULL, NULL, config);
+
+ /* Read in all the interfaces */
+ ifparser_init (ENI_INTERFACES_FILE, 0);
+ block = ifparser_getfirst ();
+ while (block) {
+ if(!strcmp ("auto", block->type) || !strcmp ("allow-hotplug", block->type))
+ g_hash_table_insert (auto_ifaces, block->name, GUINT_TO_POINTER (1));
+ else if (!strcmp ("iface", block->type)) {
+ NMIfupdownConnection *exported;
+
+ /* Bridge configuration */
+ if(!strncmp ("br", block->name, 2)) {
+ /* Try to find bridge ports */
+ const char *ports = ifparser_getkey (block, "bridge-ports");
+ if (ports) {
+ int i;
+ int state = 0;
+ char **port_ifaces;
+
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "found bridge ports %s for %s", ports, block->name);
+
+ port_ifaces = g_strsplit_set (ports, " \t", -1);
+ for (i = 0; i < g_strv_length (port_ifaces); i++) {
+ char *token = port_ifaces[i];
+ /* Skip crazy stuff like regex or all */
+ if (!strcmp ("all", token)) {
+ continue;
+ }
+ /* Small SM to skip everything inside regex */
+ if (!strcmp ("regex", token)) {
+ state++;
+ continue;
+ }
+ if (!strcmp ("noregex", token)) {
+ state--;
+ continue;
+ }
+ if (state == 0 && strlen (token) > 0) {
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "adding bridge port %s to well_known_interfaces", token);
+ g_hash_table_insert (priv->well_known_interfaces, g_strdup (token), "known");
+ }
+ }
+ g_strfreev (port_ifaces);
+ }
+ goto next;
+ }
+
+ /* Skip loopback configuration */
+ if(!strcmp ("lo", block->name)) {
+ goto next;
+ }
+
+ /* Remove any connection for this block that was previously found */
+ exported = g_hash_table_lookup (priv->iface_connections, block->name);
+ if (exported) {
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "deleting %s from iface_connections", block->name);
+ nm_settings_connection_delete (NM_SETTINGS_CONNECTION (exported), ignore_cb, NULL);
+ g_hash_table_remove (priv->iface_connections, block->name);
+ }
+
+ /* add the new connection */
+ exported = nm_ifupdown_connection_new (block);
+ if (exported) {
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "adding %s to iface_connections", block->name);
+ g_hash_table_insert (priv->iface_connections, block->name, exported);
+ }
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "adding iface %s to well_known_interfaces", block->name);
+ g_hash_table_insert (priv->well_known_interfaces, block->name, "known");
+ } else if (!strcmp ("mapping", block->type)) {
+ g_hash_table_insert (priv->well_known_interfaces, block->name, "known");
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "adding mapping %s to well_known_interfaces", block->name);
+ }
+ next:
+ block = block->next;
+ }
+
+ /* Make 'auto' interfaces autoconnect=TRUE */
+ keys = g_hash_table_get_keys (priv->iface_connections);
+ for (iter = keys; iter; iter = g_list_next (iter)) {
+ NMIfupdownConnection *exported;
+ NMSetting *setting;
+
+ if (!g_hash_table_lookup (auto_ifaces, iter->data))
+ continue;
+
+ exported = g_hash_table_lookup (priv->iface_connections, iter->data);
+ setting = NM_SETTING (nm_connection_get_setting (NM_CONNECTION (exported), NM_TYPE_SETTING_CONNECTION));
+ g_object_set (setting, NM_SETTING_CONNECTION_AUTOCONNECT, TRUE, NULL);
+
+ nm_settings_connection_commit_changes (NM_SETTINGS_CONNECTION (exported), ignore_cb, NULL);
+
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "autoconnect");
+ }
+ g_list_free (keys);
+ g_hash_table_destroy (auto_ifaces);
+
+ /* Find the config file */
+ if (g_file_test (IFUPDOWN_SYSTEM_SETTINGS_KEY_FILE, G_FILE_TEST_EXISTS))
+ priv->conf_file = IFUPDOWN_SYSTEM_SETTINGS_KEY_FILE;
+ else
+ priv->conf_file = IFUPDOWN_OLD_SYSTEM_SETTINGS_KEY_FILE;
+
+ keyfile = g_key_file_new ();
+ if (!g_key_file_load_from_file (keyfile,
+ priv->conf_file,
+ G_KEY_FILE_NONE,
+ &error)) {
+ nm_log_info (LOGD_SETTINGS, "loading system config file (%s) caused error: (%d) %s",
+ priv->conf_file,
+ error ? error->code : -1,
+ error && error->message ? error->message : "(unknown)");
+ } else {
+ gboolean manage_well_known;
+ error = NULL;
+
+ manage_well_known = g_key_file_get_boolean (keyfile,
+ IFUPDOWN_KEY_FILE_GROUP,
+ IFUPDOWN_KEY_FILE_KEY_MANAGED,
+ &error);
+ if (error) {
+ nm_log_info (LOGD_SETTINGS, "getting keyfile key '%s' in group '%s' failed: (%d) %s",
+ IFUPDOWN_KEY_FILE_GROUP,
+ IFUPDOWN_KEY_FILE_KEY_MANAGED,
+ error ? error->code : -1,
+ error && error->message ? error->message : "(unknown)");
+ } else
+ priv->unmanage_well_known = !manage_well_known;
+ }
+ PLUGIN_PRINT ("SCPluginIfupdown", "management mode: %s", priv->unmanage_well_known ? "unmanaged" : "managed");
+ if (keyfile)
+ g_key_file_free (keyfile);
+
+ /* Add well-known interfaces */
+ keys = g_udev_client_query_by_subsystem (priv->client, "net");
+ for (iter = keys; iter; iter = g_list_next (iter)) {
+ udev_device_added (self, G_UDEV_DEVICE (iter->data));
+ g_object_unref (G_UDEV_DEVICE (iter->data));
+ }
+ g_list_free (keys);
+
+ /* Now if we're running in managed mode, let NM know there are new connections */
+ if (!priv->unmanage_well_known) {
+ GList *con_list = g_hash_table_get_values (priv->iface_connections);
+ GList *cl_iter;
+
+ for (cl_iter = con_list; cl_iter; cl_iter = g_list_next (cl_iter)) {
+ g_signal_emit_by_name (self,
+ NM_SYSTEM_CONFIG_INTERFACE_CONNECTION_ADDED,
+ NM_SETTINGS_CONNECTION (cl_iter->data));
+ }
+ g_list_free (con_list);
+ }
+
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "end _init.");
+}
+
+
+/* Returns the plugins currently known list of connections. The returned
+ * list is freed by the system settings service.
+ */
+static GSList*
+SCPluginIfupdown_get_connections (NMSystemConfigInterface *config)
+{
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (config);
+ GSList *connections = NULL;
+ GHashTableIter iter;
+ gpointer value;
+
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "(%d) ... get_connections.", GPOINTER_TO_UINT(config));
+
+ if(priv->unmanage_well_known) {
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "(%d) ... get_connections (managed=false): return empty list.", GPOINTER_TO_UINT(config));
+ return NULL;
+ }
+
+ g_hash_table_iter_init (&iter, priv->iface_connections);
+ while (g_hash_table_iter_next (&iter, NULL, &value))
+ connections = g_slist_prepend (connections, value);
+
+ PLUGIN_PRINT("SCPlugin-Ifupdown", "(%d) connections count: %d", GPOINTER_TO_UINT(config), g_slist_length(connections));
+ return connections;
+}
+
+/*
+ * Return a list of device specifications which NetworkManager should not
+ * manage. Returned list will be freed by the system settings service, and
+ * each element must be allocated using g_malloc() or its variants.
+ */
+static GSList*
+SCPluginIfupdown_get_unmanaged_specs (NMSystemConfigInterface *config)
+{
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (config);
+ GSList *specs = NULL;
+ GHashTableIter iter;
+ gpointer value;
+
+ if (!ALWAYS_UNMANAGE && !priv->unmanage_well_known)
+ return NULL;
+
+ PLUGIN_PRINT("Ifupdown", "get unmanaged devices count: %d",
+ g_hash_table_size (priv->well_known_ifaces));
+
+ g_hash_table_iter_init (&iter, priv->well_known_ifaces);
+ while (g_hash_table_iter_next (&iter, NULL, &value)) {
+ GUdevDevice *device = G_UDEV_DEVICE (value);
+ const char *address;
+
+ address = g_udev_device_get_sysfs_attr (device, "address");
+ if (address)
+ specs = g_slist_append (specs, g_strdup_printf ("mac:%s", address));
+ }
+ return specs;
+}
+
+
+static const char *
+get_hostname (NMSystemConfigInterface *config)
+{
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (config);
+ return priv->hostname;
+}
+
+static void
+update_system_hostname(NMInotifyHelper *inotify_helper,
+ struct inotify_event *evt,
+ const char *path,
+ NMSystemConfigInterface *config)
+{
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (config);
+ gchar *hostname_file = NULL;
+ gsize hostname_file_len = 0;
+ GError *error = NULL;
+
+ PLUGIN_PRINT ("SCPlugin-Ifupdown", "update_system_hostname");
+
+ if (evt && evt->wd != priv->inotify_system_hostname_wd)
+ return;
+
+ if(!g_file_get_contents ( IFUPDOWN_SYSTEM_HOSTNAME_FILE,
+ &hostname_file,
+ &hostname_file_len,
+ &error)) {
+ nm_log_warn (LOGD_SETTINGS, "update_system_hostname() - couldn't read "
+ IFUPDOWN_SYSTEM_HOSTNAME_FILE " (%d/%s)",
+ error->code, error->message);
+ return;
+ }
+
+ g_free(priv->hostname);
+ priv->hostname = g_strstrip(hostname_file);
+
+ /* We shouldn't return a zero-length hostname, but NULL */
+ if (priv->hostname && !strlen (priv->hostname)) {
+ g_free (priv->hostname);
+ priv->hostname = NULL;
+ }
+
+ g_object_notify (G_OBJECT (config), NM_SYSTEM_CONFIG_INTERFACE_HOSTNAME);
+}
+
+static void
+write_system_hostname(NMSystemConfigInterface *config,
+ const char *newhostname)
+{
+ GError *error = NULL;
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (config);
+ PLUGIN_PRINT ("SCPlugin-Ifupdown", "write_system_hostname: %s", newhostname);
+
+ g_return_if_fail (newhostname);
+
+ if(!g_file_set_contents ( IFUPDOWN_SYSTEM_HOSTNAME_FILE,
+ newhostname,
+ -1,
+ &error)) {
+ nm_log_warn (LOGD_SETTINGS, "update_system_hostname() - couldn't write hostname (%s) to "
+ IFUPDOWN_SYSTEM_HOSTNAME_FILE " (%d/%s)",
+ newhostname, error->code, error->message);
+ } else {
+ priv->hostname = g_strdup (newhostname);
+ }
+ g_object_notify (G_OBJECT (config), NM_SYSTEM_CONFIG_INTERFACE_HOSTNAME);
+}
+
+
+static void
+sc_plugin_ifupdown_init (SCPluginIfupdown *plugin)
+{
+}
+
+static void
+GObject__get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec)
+{
+ NMSystemConfigInterface *self = NM_SYSTEM_CONFIG_INTERFACE (object);
+
+ switch (prop_id) {
+ case NM_SYSTEM_CONFIG_INTERFACE_PROP_NAME:
+ g_value_set_string (value, IFUPDOWN_PLUGIN_NAME);
+ break;
+ case NM_SYSTEM_CONFIG_INTERFACE_PROP_INFO:
+ g_value_set_string (value, IFUPDOWN_PLUGIN_INFO);
+ break;
+ case NM_SYSTEM_CONFIG_INTERFACE_PROP_CAPABILITIES:
+ g_value_set_uint (value, NM_SYSTEM_CONFIG_INTERFACE_CAP_MODIFY_HOSTNAME);
+ break;
+ case NM_SYSTEM_CONFIG_INTERFACE_PROP_HOSTNAME:
+ {
+ g_value_set_string (value, get_hostname(self));
+ break;
+ }
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+GObject__set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec)
+{
+ switch (prop_id) {
+ case NM_SYSTEM_CONFIG_INTERFACE_PROP_HOSTNAME:
+ {
+ const gchar *hostname = g_value_get_string (value);
+ if (hostname && strlen (hostname) < 1)
+ hostname = NULL;
+ write_system_hostname(NM_SYSTEM_CONFIG_INTERFACE(object),
+ hostname);
+ break;
+ }
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+GObject__dispose (GObject *object)
+{
+ SCPluginIfupdown *plugin = SC_PLUGIN_IFUPDOWN (object);
+ SCPluginIfupdownPrivate *priv = SC_PLUGIN_IFUPDOWN_GET_PRIVATE (plugin);
+ NMInotifyHelper *inotify_helper = nm_inotify_helper_get ();
+
+ g_signal_handler_disconnect (inotify_helper, priv->inotify_event_id);
+
+ if (priv->inotify_system_hostname_wd >= 0)
+ nm_inotify_helper_remove_watch (inotify_helper, priv->inotify_system_hostname_wd);
+
+ if (priv->well_known_ifaces)
+ g_hash_table_destroy(priv->well_known_ifaces);
+
+ if (priv->well_known_interfaces)
+ g_hash_table_destroy(priv->well_known_interfaces);
+
+ if (priv->client)
+ g_object_unref (priv->client);
+
+ G_OBJECT_CLASS (sc_plugin_ifupdown_parent_class)->dispose (object);
+}
+
+G_MODULE_EXPORT GObject *
+nm_system_config_factory (void)
+{
+ static SCPluginIfupdown *singleton = NULL;
+
+ if (!singleton)
+ singleton = SC_PLUGIN_IFUPDOWN (g_object_new (SC_TYPE_PLUGIN_IFUPDOWN, NULL));
+ else
+ g_object_ref (singleton);
+
+ return G_OBJECT (singleton);
+}
+