New upstream version 1.5.90 upstream/1.5.90

1 files changed, 527 insertions, 0 deletions

diff --git a/src/settings/plugins/ifupdown/nms-ifupdown-plugin.c b/src/settings/plugins/ifupdown/nms-ifupdown-plugin.c
new file mode 100644
index 00000000..211e5d57
--- /dev/null
+++ b/src/settings/plugins/ifupdown/nms-ifupdown-plugin.c
@@ -0,0 +1,527 @@
+/* -*- 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 - 2011 Red Hat, Inc.
+ */
+
+#include "nm-default.h"
+
+#include "nms-ifupdown-plugin.h"
+
+#include <string.h>
+#include <arpa/inet.h>
+#include <gudev/gudev.h>
+#include <gmodule.h>
+
+#include "nm-setting-connection.h"
+#include "nm-dbus-interface.h"
+#include "settings/nm-settings-plugin.h"
+#include "nm-setting-ip4-config.h"
+#include "nm-setting-wireless.h"
+#include "nm-setting-wired.h"
+#include "nm-setting-ppp.h"
+#include "nm-utils.h"
+#include "nm-core-internal.h"
+#include "NetworkManagerUtils.h"
+#include "nm-config.h"
+
+#include "nms-ifupdown-interface-parser.h"
+#include "nms-ifupdown-connection.h"
+#include "nms-ifupdown-parser.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_UNMANAGE_WELL_KNOWN_DEFAULT TRUE
+
+/* #define ALWAYS_UNMANAGE TRUE */
+#ifndef ALWAYS_UNMANAGE
+#define ALWAYS_UNMANAGE FALSE
+#endif
+
+/*****************************************************************************/
+
+typedef struct {
+	GUdevClient *client;
+
+	GHashTable *connections;  /* /e/n/i block name :: NMIfupdownConnection */
+
+	/* Stores all blocks/interfaces read from /e/n/i regardless of whether
+	 * there is an NMIfupdownConnection for block.
+	 */
+	GHashTable *eni_ifaces;
+
+	/* Stores any network interfaces the kernel knows about */
+	GHashTable *kernel_ifaces;
+
+	gboolean unmanage_well_known;
+} SettingsPluginIfupdownPrivate;
+
+struct _SettingsPluginIfupdown {
+	GObject parent;
+	SettingsPluginIfupdownPrivate _priv;
+};
+
+struct _SettingsPluginIfupdownClass {
+	GObjectClass parent;
+};
+
+static void settings_plugin_interface_init (NMSettingsPluginInterface *plugin_iface);
+
+G_DEFINE_TYPE_EXTENDED (SettingsPluginIfupdown, settings_plugin_ifupdown, G_TYPE_OBJECT, 0,
+                        G_IMPLEMENT_INTERFACE (NM_TYPE_SETTINGS_PLUGIN,
+                                               settings_plugin_interface_init))
+
+#define SETTINGS_PLUGIN_IFUPDOWN_GET_PRIVATE(self) _NM_GET_PRIVATE (self, SettingsPluginIfupdown, SETTINGS_IS_PLUGIN_IFUPDOWN)
+
+/*****************************************************************************/
+
+static SettingsPluginIfupdown *settings_plugin_ifupdown_get (void);
+NM_DEFINE_SINGLETON_GETTER (SettingsPluginIfupdown, settings_plugin_ifupdown_get, SETTINGS_TYPE_PLUGIN_IFUPDOWN);
+
+/*****************************************************************************/
+
+static void
+bind_device_to_connection (SettingsPluginIfupdown *self,
+                           GUdevDevice *device,
+                           NMIfupdownConnection *exported)
+{
+	NMSettingWired *s_wired;
+	NMSettingWireless *s_wifi;
+	const char *iface, *address;
+
+	iface = g_udev_device_get_name (device);
+	if (!iface) {
+		nm_log_warn (LOGD_SETTINGS, "failed to get ifname for device.");
+		return;
+	}
+
+	address = g_udev_device_get_sysfs_attr (device, "address");
+	if (!address || !strlen (address)) {
+		nm_log_warn (LOGD_SETTINGS, "failed to get MAC address for %s", iface);
+		return;
+	}
+
+	if (!nm_utils_hwaddr_valid (address, ETH_ALEN)) {
+		nm_log_warn (LOGD_SETTINGS, "failed to parse MAC address '%s' for %s",
+		             address, iface);
+		return;
+	}
+
+	s_wired = nm_connection_get_setting_wired (NM_CONNECTION (exported));
+	s_wifi = nm_connection_get_setting_wireless (NM_CONNECTION (exported));
+	if (s_wired) {
+		nm_log_info (LOGD_SETTINGS, "locking wired connection setting");
+		g_object_set (s_wired, NM_SETTING_WIRED_MAC_ADDRESS, address, NULL);
+	} else if (s_wifi) {
+		nm_log_info (LOGD_SETTINGS, "locking wireless connection setting");
+		g_object_set (s_wifi, NM_SETTING_WIRELESS_MAC_ADDRESS, address, NULL);
+	}
+
+	nm_settings_connection_commit_changes (NM_SETTINGS_CONNECTION (exported), NM_SETTINGS_CONNECTION_COMMIT_REASON_NONE, NULL, NULL);
+}
+
+static void
+udev_device_added (SettingsPluginIfupdown *self, GUdevDevice *device)
+{
+	SettingsPluginIfupdownPrivate *priv = SETTINGS_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;
+
+	nm_log_info (LOGD_SETTINGS, "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 = g_hash_table_lookup (priv->connections, iface);
+	if (!exported && !g_hash_table_lookup (priv->eni_ifaces, iface)) {
+		nm_log_info (LOGD_SETTINGS, "device added (path: %s, iface: %s): no ifupdown configuration found.",
+		             path, iface);
+		return;
+	}
+
+	g_hash_table_insert (priv->kernel_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_SETTINGS_PLUGIN_UNMANAGED_SPECS_CHANGED);
+}
+
+static void
+udev_device_removed (SettingsPluginIfupdown *self, GUdevDevice *device)
+{
+	SettingsPluginIfupdownPrivate *priv = SETTINGS_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;
+
+	nm_log_info (LOGD_SETTINGS, "devices removed (path: %s, iface: %s)", path, iface);
+
+	if (!g_hash_table_remove (priv->kernel_ifaces, iface))
+		return;
+
+	if (ALWAYS_UNMANAGE || priv->unmanage_well_known)
+		g_signal_emit_by_name (G_OBJECT (self), NM_SETTINGS_PLUGIN_UNMANAGED_SPECS_CHANGED);
+}
+
+static void
+udev_device_changed (SettingsPluginIfupdown *self, GUdevDevice *device)
+{
+	SettingsPluginIfupdownPrivate *priv = SETTINGS_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;
+
+	nm_log_info (LOGD_SETTINGS, "device changed (path: %s, iface: %s)", path, iface);
+
+	if (!g_hash_table_lookup (priv->kernel_ifaces, iface))
+		return;
+
+	if (ALWAYS_UNMANAGE || priv->unmanage_well_known)
+		g_signal_emit_by_name (G_OBJECT (self), NM_SETTINGS_PLUGIN_UNMANAGED_SPECS_CHANGED);
+}
+
+static void
+handle_uevent (GUdevClient *client,
+               const char *action,
+               GUdevDevice *device,
+               gpointer user_data)
+{
+	SettingsPluginIfupdown *self = SETTINGS_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);
+	else if (!strcmp (action, "change"))
+		udev_device_changed (self, device);
+}
+
+/* Returns the plugins currently known list of connections.  The returned
+ * list is freed by the system settings service.
+ */
+static GSList*
+get_connections (NMSettingsPlugin *config)
+{
+	SettingsPluginIfupdownPrivate *priv = SETTINGS_PLUGIN_IFUPDOWN_GET_PRIVATE ((SettingsPluginIfupdown *) config);
+	GSList *connections;
+
+	nm_log_info (LOGD_SETTINGS, "(%d) ... get_connections.", GPOINTER_TO_UINT(config));
+
+	if(priv->unmanage_well_known) {
+		nm_log_info (LOGD_SETTINGS, "(%d) ... get_connections (managed=false): return empty list.", GPOINTER_TO_UINT(config));
+		return NULL;
+	}
+
+	connections = _nm_utils_hash_values_to_slist (priv->connections);
+
+	nm_log_info (LOGD_SETTINGS, "(%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*
+get_unmanaged_specs (NMSettingsPlugin *config)
+{
+	SettingsPluginIfupdownPrivate *priv = SETTINGS_PLUGIN_IFUPDOWN_GET_PRIVATE ((SettingsPluginIfupdown *) config);
+	GSList *specs = NULL;
+	GHashTableIter iter;
+	GUdevDevice *device;
+	const char *iface;
+
+	if (!ALWAYS_UNMANAGE && !priv->unmanage_well_known)
+		return NULL;
+
+	nm_log_info (LOGD_SETTINGS, "get unmanaged devices count: %d",
+	             g_hash_table_size (priv->kernel_ifaces));
+
+	g_hash_table_iter_init (&iter, priv->kernel_ifaces);
+	while (g_hash_table_iter_next (&iter, (gpointer) &iface, (gpointer) &device)) {
+		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));
+		else
+			specs = g_slist_append (specs, g_strdup_printf ("interface-name:%s", iface));
+	}
+	return specs;
+}
+
+/*****************************************************************************/
+
+static void
+get_property (GObject *object, guint prop_id,
+              GValue *value, GParamSpec *pspec)
+{
+	switch (prop_id) {
+	case NM_SETTINGS_PLUGIN_PROP_NAME:
+		g_value_set_string (value, IFUPDOWN_PLUGIN_NAME);
+		break;
+	case NM_SETTINGS_PLUGIN_PROP_INFO:
+		g_value_set_string (value, IFUPDOWN_PLUGIN_INFO);
+		break;
+	case NM_SETTINGS_PLUGIN_PROP_CAPABILITIES:
+		g_value_set_uint (value, NM_SETTINGS_PLUGIN_CAP_NONE);
+		break;
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+		break;
+	}
+}
+
+/*****************************************************************************/
+
+static void
+init (NMSettingsPlugin *config)
+{
+	SettingsPluginIfupdown *self = SETTINGS_PLUGIN_IFUPDOWN (config);
+	SettingsPluginIfupdownPrivate *priv = SETTINGS_PLUGIN_IFUPDOWN_GET_PRIVATE (self);
+	GHashTable *auto_ifaces;
+	if_block *block = NULL;
+	GList *keys, *iter;
+	GHashTableIter con_iter;
+	const char *block_name;
+	NMIfupdownConnection *connection;
+	const char *subsys[2] = { "net", NULL };
+
+	auto_ifaces = g_hash_table_new (g_str_hash, g_str_equal);
+
+	if(!priv->connections)
+		priv->connections = g_hash_table_new (g_str_hash, g_str_equal);
+
+	if(!priv->kernel_ifaces)
+		priv->kernel_ifaces = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
+
+	if(!priv->eni_ifaces)
+		priv->eni_ifaces = g_hash_table_new (g_str_hash, g_str_equal);
+
+	nm_log_info (LOGD_SETTINGS, "init!");
+
+	priv->client = g_udev_client_new (subsys);
+	if (!priv->client) {
+		nm_log_warn (LOGD_SETTINGS, "    error initializing libgudev");
+	} else
+		g_signal_connect (priv->client, "uevent", G_CALLBACK (handle_uevent), self);
+
+	/* 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;
+
+					nm_log_info (LOGD_SETTINGS, "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) {
+							nm_log_info (LOGD_SETTINGS, "adding bridge port %s to eni_ifaces", token);
+							g_hash_table_insert (priv->eni_ifaces, 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->connections, block->name);
+			if (exported) {
+				nm_log_info (LOGD_SETTINGS, "deleting %s from connections", block->name);
+				nm_settings_connection_delete (NM_SETTINGS_CONNECTION (exported), NULL, NULL);
+				g_hash_table_remove (priv->connections, block->name);
+			}
+
+			/* add the new connection */
+			exported = nm_ifupdown_connection_new (block);
+			if (exported) {
+				nm_log_info (LOGD_SETTINGS, "adding %s to connections", block->name);
+				g_hash_table_insert (priv->connections, block->name, exported);
+			}
+			nm_log_info (LOGD_SETTINGS, "adding iface %s to eni_ifaces", block->name);
+			g_hash_table_insert (priv->eni_ifaces, block->name, "known");
+		} else if (!strcmp ("mapping", block->type)) {
+			g_hash_table_insert (priv->eni_ifaces, block->name, "known");
+			nm_log_info (LOGD_SETTINGS, "adding mapping %s to eni_ifaces", block->name);
+		}
+	next:
+		block = block->next;
+	}
+
+	/* Make 'auto' interfaces autoconnect=TRUE */
+	g_hash_table_iter_init (&con_iter, priv->connections);
+	while (g_hash_table_iter_next (&con_iter, (gpointer) &block_name, (gpointer) &connection)) {
+		NMSettingConnection *setting;
+
+		if (g_hash_table_lookup (auto_ifaces, block_name)) {
+			setting = nm_connection_get_setting_connection (NM_CONNECTION (connection));
+			g_object_set (setting, NM_SETTING_CONNECTION_AUTOCONNECT, TRUE, NULL);
+			nm_log_info (LOGD_SETTINGS, "autoconnect");
+		}
+	}
+	g_hash_table_destroy (auto_ifaces);
+
+	/* Check the config file to find out whether to manage interfaces */
+	priv->unmanage_well_known = !nm_config_data_get_value_boolean (NM_CONFIG_GET_DATA_ORIG,
+	                                                               NM_CONFIG_KEYFILE_GROUP_IFUPDOWN,
+	                                                               NM_CONFIG_KEYFILE_KEY_IFUPDOWN_MANAGED,
+	                                                               !IFUPDOWN_UNMANAGE_WELL_KNOWN_DEFAULT);
+	nm_log_info (LOGD_SETTINGS, "management mode: %s", priv->unmanage_well_known ? "unmanaged" : "managed");
+
+	/* 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->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_SETTINGS_PLUGIN_CONNECTION_ADDED,
+			                       NM_SETTINGS_CONNECTION (cl_iter->data));
+		}
+		g_list_free (con_list);
+	}
+
+	nm_log_info (LOGD_SETTINGS, "end _init.");
+}
+
+/*****************************************************************************/
+
+static void
+settings_plugin_ifupdown_init (SettingsPluginIfupdown *plugin)
+{
+}
+
+static void
+dispose (GObject *object)
+{
+	SettingsPluginIfupdown *plugin = SETTINGS_PLUGIN_IFUPDOWN (object);
+	SettingsPluginIfupdownPrivate *priv = SETTINGS_PLUGIN_IFUPDOWN_GET_PRIVATE (plugin);
+
+	g_clear_pointer (&priv->kernel_ifaces, g_hash_table_destroy);
+	g_clear_pointer (&priv->eni_ifaces, g_hash_table_destroy);
+	g_clear_object (&priv->client);
+
+	G_OBJECT_CLASS (settings_plugin_ifupdown_parent_class)->dispose (object);
+}
+
+static void
+settings_plugin_ifupdown_class_init (SettingsPluginIfupdownClass *req_class)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (req_class);
+
+	object_class->dispose = dispose;
+	object_class->get_property = get_property;
+
+	g_object_class_override_property (object_class,
+	                                  NM_SETTINGS_PLUGIN_PROP_NAME,
+	                                  NM_SETTINGS_PLUGIN_NAME);
+
+	g_object_class_override_property (object_class,
+	                                  NM_SETTINGS_PLUGIN_PROP_INFO,
+	                                  NM_SETTINGS_PLUGIN_INFO);
+
+	g_object_class_override_property (object_class,
+	                                  NM_SETTINGS_PLUGIN_PROP_CAPABILITIES,
+	                                  NM_SETTINGS_PLUGIN_CAPABILITIES);
+}
+
+static void
+settings_plugin_interface_init (NMSettingsPluginInterface *plugin_iface)
+{
+	plugin_iface->init = init;
+	plugin_iface->get_connections = get_connections;
+	plugin_iface->get_unmanaged_specs = get_unmanaged_specs;
+}
+
+/*****************************************************************************/
+
+G_MODULE_EXPORT GObject *
+nm_settings_plugin_factory (void)
+{
+	return g_object_ref (settings_plugin_ifupdown_get ());
+}
+