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/* -*- Mode: C; tab-width: 5; indent-tabs-mode: t; c-basic-offset: 5 -*- */
/* NetworkManager system settings service
*
* Søren Sandmann <sandmann@daimi.au.dk>
*
* 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 - 2009 Red Hat, Inc.
* (C) Copyright 2007 - 2008 Novell, Inc.
*/
#include <config.h>
#include <string.h>
#include <gmodule.h>
#include <glib-object.h>
#include <gio/gio.h>
#include "plugin.h"
#include "nm-system-config-interface.h"
#define IFCFG_PLUGIN_NAME "ifcfg-suse"
#define IFCFG_PLUGIN_INFO "(C) 2008 Novell, Inc. To report bugs please use the NetworkManager mailing list."
#define IFCFG_DIR SYSCONFDIR "/sysconfig/network"
#define CONF_DHCP IFCFG_DIR "/dhcp"
#define HOSTNAME_FILE "/etc/HOSTNAME"
static void system_config_interface_init (NMSystemConfigInterface *system_config_interface_class);
G_DEFINE_TYPE_EXTENDED (SCPluginIfcfg, sc_plugin_ifcfg, G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE (NM_TYPE_SYSTEM_CONFIG_INTERFACE,
system_config_interface_init))
#define SC_PLUGIN_IFCFG_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), SC_TYPE_PLUGIN_IFCFG, SCPluginIfcfgPrivate))
#define IFCFG_FILE_PATH_TAG "ifcfg-file-path"
typedef struct {
GFileMonitor *hostname_monitor;
GFileMonitor *dhcp_monitor;
char *hostname;
} SCPluginIfcfgPrivate;
GQuark
ifcfg_plugin_error_quark (void)
{
static GQuark error_quark = 0;
if (G_UNLIKELY (error_quark == 0))
error_quark = g_quark_from_static_string ("ifcfg-plugin-error-quark");
return error_quark;
}
typedef void (*FileChangedFn) (gpointer user_data);
typedef struct {
FileChangedFn callback;
gpointer user_data;
} FileMonitorInfo;
static void
file_changed (GFileMonitor *monitor,
GFile *file,
GFile *other_file,
GFileMonitorEvent event_type,
gpointer user_data)
{
FileMonitorInfo *info;
switch (event_type) {
case G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
case G_FILE_MONITOR_EVENT_DELETED:
info = (FileMonitorInfo *) user_data;
info->callback (info->user_data);
break;
default:
break;
}
}
static GFileMonitor *
monitor_file_changes (const char *filename,
FileChangedFn callback,
gpointer user_data)
{
GFile *file;
GFileMonitor *monitor;
FileMonitorInfo *info;
file = g_file_new_for_path (filename);
monitor = g_file_monitor_file (file, G_FILE_MONITOR_NONE, NULL, NULL);
g_object_unref (file);
if (monitor) {
info = g_new0 (FileMonitorInfo, 1);
info->callback = callback;
info->user_data = user_data;
g_object_weak_ref (G_OBJECT (monitor), (GWeakNotify) g_free, info);
g_signal_connect (monitor, "changed", G_CALLBACK (file_changed), info);
}
return monitor;
}
static gboolean
hostname_is_dynamic (void)
{
GIOChannel *channel;
const char *pattern = "DHCLIENT_SET_HOSTNAME=";
char *str = NULL;
int pattern_len;
gboolean dynamic = FALSE;
channel = g_io_channel_new_file (CONF_DHCP, "r", NULL);
if (!channel)
return dynamic;
pattern_len = strlen (pattern);
while (g_io_channel_read_line (channel, &str, NULL, NULL, NULL) != G_IO_STATUS_EOF) {
if (!strncmp (str, pattern, pattern_len)) {
if (!strncmp (str + pattern_len, "\"yes\"", 5))
dynamic = TRUE;
break;
}
g_free (str);
}
g_io_channel_shutdown (channel, FALSE, NULL);
g_io_channel_unref (channel);
return dynamic;
}
static char *
hostname_read ()
{
GIOChannel *channel;
char *hostname = NULL;
channel = g_io_channel_new_file (HOSTNAME_FILE, "r", NULL);
if (channel) {
g_io_channel_read_line (channel, &hostname, NULL, NULL, NULL);
g_io_channel_shutdown (channel, FALSE, NULL);
g_io_channel_unref (channel);
if (hostname)
hostname = g_strchomp (hostname);
}
return hostname;
}
static void
hostname_changed (gpointer data)
{
SCPluginIfcfgPrivate *priv = SC_PLUGIN_IFCFG_GET_PRIVATE (data);
g_free (priv->hostname);
if (hostname_is_dynamic ())
priv->hostname = NULL;
else
priv->hostname = hostname_read ();
g_object_notify (G_OBJECT (data), NM_SYSTEM_CONFIG_INTERFACE_HOSTNAME);
}
static void
plugin_set_hostname (SCPluginIfcfg *plugin, const char *hostname)
{
SCPluginIfcfgPrivate *priv = SC_PLUGIN_IFCFG_GET_PRIVATE (plugin);
GIOChannel *channel;
channel = g_io_channel_new_file (HOSTNAME_FILE, "w", NULL);
if (channel) {
g_io_channel_write_chars (channel, hostname, -1, NULL, NULL);
g_io_channel_write_chars (channel, "\n", -1, NULL, NULL);
g_io_channel_shutdown (channel, TRUE, NULL);
g_io_channel_unref (channel);
}
g_free (priv->hostname);
priv->hostname = g_strdup (hostname);
}
static void
init (NMSystemConfigInterface *config)
{
SCPluginIfcfgPrivate *priv = SC_PLUGIN_IFCFG_GET_PRIVATE (config);
priv->hostname_monitor = monitor_file_changes (HOSTNAME_FILE, hostname_changed, config);
priv->dhcp_monitor = monitor_file_changes (CONF_DHCP, hostname_changed, config);
if (!hostname_is_dynamic ())
priv->hostname = hostname_read ();
}
static void
sc_plugin_ifcfg_init (SCPluginIfcfg *self)
{
}
static void
dispose (GObject *object)
{
SCPluginIfcfgPrivate *priv = SC_PLUGIN_IFCFG_GET_PRIVATE (object);
if (priv->dhcp_monitor)
g_object_unref (priv->dhcp_monitor);
if (priv->hostname_monitor)
g_object_unref (priv->hostname_monitor);
g_free (priv->hostname);
G_OBJECT_CLASS (sc_plugin_ifcfg_parent_class)->dispose (object);
}
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
switch (prop_id) {
case NM_SYSTEM_CONFIG_INTERFACE_PROP_NAME:
g_value_set_string (value, IFCFG_PLUGIN_NAME);
break;
case NM_SYSTEM_CONFIG_INTERFACE_PROP_INFO:
g_value_set_string (value, IFCFG_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, SC_PLUGIN_IFCFG_GET_PRIVATE (object)->hostname);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
const char *hostname;
switch (prop_id) {
case NM_SYSTEM_CONFIG_INTERFACE_PROP_HOSTNAME:
hostname = g_value_get_string (value);
if (hostname && strlen (hostname) < 1)
hostname = NULL;
plugin_set_hostname (SC_PLUGIN_IFCFG (object), hostname);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
sc_plugin_ifcfg_class_init (SCPluginIfcfgClass *req_class)
{
GObjectClass *object_class = G_OBJECT_CLASS (req_class);
g_type_class_add_private (req_class, sizeof (SCPluginIfcfgPrivate));
object_class->get_property = get_property;
object_class->set_property = set_property;
object_class->dispose = dispose;
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
system_config_interface_init (NMSystemConfigInterface *system_config_interface_class)
{
/* interface implementation */
system_config_interface_class->init = init;
}
G_MODULE_EXPORT GObject *
nm_system_config_factory (void)
{
static SCPluginIfcfg *singleton = NULL;
if (!singleton)
singleton = SC_PLUGIN_IFCFG (g_object_new (SC_TYPE_PLUGIN_IFCFG, NULL));
else
g_object_ref (singleton);
return G_OBJECT (singleton);
}
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