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/*
*
* Connection Manager
*
* Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <errno.h>
#include <unistd.h>
#include <gdbus.h>
#define CONNMAN_API_SUBJECT_TO_CHANGE
#include <connman/plugin.h>
#include <connman/utsname.h>
#include <connman/dhcp.h>
#include <connman/task.h>
#include <connman/log.h>
struct udhcp_data {
struct connman_task *task;
struct connman_dhcp *dhcp;
char *ifname;
};
static void udhcp_unlink(const char *ifname)
{
char *pathname;
pathname = g_strdup_printf("%s/udhcpc.%s.pid",
STATEDIR, ifname);
unlink(pathname);
g_free(pathname);
}
static void udhcp_notify(struct connman_task *task,
DBusMessage *msg, void *user_data)
{
struct connman_dhcp *dhcp = user_data;
const char *interface, *address, *netmask, *broadcast, *gateway, *dns, *action;
DBG("");
dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &interface,
DBUS_TYPE_STRING, &address,
DBUS_TYPE_STRING, &netmask,
DBUS_TYPE_STRING, &broadcast,
DBUS_TYPE_STRING, &gateway,
DBUS_TYPE_STRING, &dns,
DBUS_TYPE_STRING, &action,
DBUS_TYPE_INVALID);
DBG("%s address %s gateway %s", action, address, gateway);
connman_dhcp_set_value(dhcp, "Address", address);
connman_dhcp_set_value(dhcp, "Netmask", netmask);
connman_dhcp_set_value(dhcp, "Gateway", gateway);
connman_dhcp_set_value(dhcp, "Broadcast", broadcast);
connman_dhcp_set_value(dhcp, "Nameserver", dns);
if (g_strcmp0(action, "bound") == 0) {
connman_dhcp_bound(dhcp);
} else if (g_strcmp0(action, "renew") == 0) {
connman_dhcp_bound(dhcp);
} else {
connman_error("Unknown action %s", action);
}
}
static void udhcp_died(struct connman_task *task, void *user_data)
{
struct udhcp_data *udhcpc = user_data;
connman_dhcp_set_data(udhcpc->dhcp, NULL);
connman_dhcp_unref(udhcpc->dhcp);
connman_task_destroy(udhcpc->task);
udhcpc->task = NULL;
udhcp_unlink(udhcpc->ifname);
g_free(udhcpc->ifname);
g_free(udhcpc);
}
static void udhcp_setup(struct connman_task *task, const char *ifname)
{
const char *path, *hostname;
path = connman_task_get_path(task);
DBG("path %s", path);
connman_task_add_argument(task, "-f", NULL);
connman_task_add_argument(task, "-i", "%s", ifname);
connman_task_add_argument(task, "-p", "%s/udhcpc.%s.pid", STATEDIR, ifname);
connman_task_add_argument(task, "-s", "%s/udhcpc-script", SCRIPTDIR);
hostname = connman_utsname_get_hostname();
if (hostname != NULL)
connman_task_add_argument(task, "-H", hostname);
connman_task_add_variable(task, "PATH", path);
}
static int udhcp_request(struct connman_dhcp *dhcp)
{
struct udhcp_data *udhcpc;
DBG("dhcp %p %s", dhcp, UDHCPC);
if (access(UDHCPC, X_OK) < 0)
return -EIO;
udhcpc = g_try_new0(struct udhcp_data, 1);
if (udhcpc == NULL)
return -ENOMEM;
udhcpc->task = connman_task_create(UDHCPC);
if (udhcpc->task == NULL) {
g_free(udhcpc);
return -ENOMEM;
}
udhcpc->dhcp = connman_dhcp_ref(dhcp);
udhcpc->ifname = connman_dhcp_get_interface(dhcp);
udhcp_setup(udhcpc->task, udhcpc->ifname);
connman_dhcp_set_data(dhcp, udhcpc);
connman_task_set_notify(udhcpc->task, "Notify",
udhcp_notify, dhcp);
connman_task_run(udhcpc->task, udhcp_died, udhcpc,
NULL, NULL, NULL);
return 0;
}
static int udhcp_release(struct connman_dhcp *dhcp)
{
struct udhcp_data *udhcpc = connman_dhcp_get_data(dhcp);
DBG("udhcp %p", udhcpc);
if (udhcpc == NULL)
return -ESRCH;
if (udhcpc->task != NULL)
connman_task_stop(udhcpc->task);
udhcp_unlink(udhcpc->ifname);
return 0;
}
static struct connman_dhcp_driver udhcp_driver = {
.name = "udhcp",
.priority = CONNMAN_DHCP_PRIORITY_LOW,
.request = udhcp_request,
.release = udhcp_release,
};
static int udhcp_init(void)
{
return connman_dhcp_driver_register(&udhcp_driver);
}
static void udhcp_exit(void)
{
connman_dhcp_driver_unregister(&udhcp_driver);
}
CONNMAN_PLUGIN_DEFINE(udhcp, "uDHCP client plugin", VERSION,
CONNMAN_PLUGIN_PRIORITY_LOW, udhcp_init, udhcp_exit)
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