5 * Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
28 #include <sys/ioctl.h>
29 #include <sys/socket.h>
31 #include <linux/netlink.h>
32 #include <linux/rtnetlink.h>
34 #include <connman/plugin.h>
35 #include <connman/driver.h>
36 #include <connman/log.h>
38 struct ethernet_data {
43 static GStaticMutex ethernet_mutex = G_STATIC_MUTEX_INIT;
44 static GSList *ethernet_list = NULL;
46 static void rtnl_link(struct nlmsghdr *hdr, const char *type)
49 struct ifinfomsg *msg;
52 msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
53 bytes = IFLA_PAYLOAD(hdr);
55 DBG("%s ifi_index %d ifi_flags 0x%04x",
56 type, msg->ifi_index, msg->ifi_flags);
58 g_static_mutex_lock(ðernet_mutex);
60 for (list = ethernet_list; list; list = list->next) {
61 struct connman_element *element = list->data;
62 struct connman_element *netdev;
63 struct ethernet_data *ethernet;
65 ethernet = connman_element_get_data(element);
69 if (ethernet->index != msg->ifi_index)
72 if ((ethernet->flags & IFF_RUNNING) ==
73 (msg->ifi_flags & IFF_RUNNING))
76 ethernet->flags = msg->ifi_flags;
78 if (ethernet->flags & IFF_RUNNING) {
81 netdev = connman_element_create(NULL);
83 netdev->type = CONNMAN_ELEMENT_TYPE_DEVICE;
84 netdev->subtype = CONNMAN_ELEMENT_SUBTYPE_NETWORK;
85 netdev->index = element->index;
87 connman_element_register(netdev, element);
92 connman_element_unregister_children(element);
96 g_static_mutex_unlock(ðernet_mutex);
99 static gboolean rtnl_event(GIOChannel *chan, GIOCondition cond, gpointer data)
101 unsigned char buf[1024];
106 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
109 memset(buf, 0, sizeof(buf));
111 err = g_io_channel_read(chan, (gchar *) buf, sizeof(buf), &len);
113 if (err == G_IO_ERROR_AGAIN)
118 DBG("buf %p len %zd", buf, len);
121 struct nlmsghdr *hdr = ptr;
122 struct nlmsgerr *err;
124 if (!NLMSG_OK(hdr, len))
127 DBG("len %d type %d flags 0x%04x seq %d",
128 hdr->nlmsg_len, hdr->nlmsg_type,
129 hdr->nlmsg_flags, hdr->nlmsg_seq);
131 switch (hdr->nlmsg_type) {
133 err = NLMSG_DATA(hdr);
134 DBG("ERROR %d (%s)", -err->error,
135 strerror(-err->error));
139 rtnl_link(hdr, "NEWLINK");
143 rtnl_link(hdr, "DELLINK");
147 len -= hdr->nlmsg_len;
148 ptr += hdr->nlmsg_len;
154 static GIOChannel *channel;
156 static int rtnl_request(void)
163 struct sockaddr_nl addr;
168 memset(&req, 0, sizeof(req));
169 req.hdr.nlmsg_len = sizeof(req.hdr) + sizeof(req.msg);
170 req.hdr.nlmsg_type = RTM_GETLINK;
171 req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
172 req.hdr.nlmsg_pid = 0;
173 req.hdr.nlmsg_seq = 42;
174 req.msg.rtgen_family = AF_INET;
176 sk = g_io_channel_unix_get_fd(channel);
178 memset(&addr, 0, sizeof(addr));
179 addr.nl_family = AF_NETLINK;
181 return sendto(sk, &req, sizeof(req), 0,
182 (struct sockaddr *) &addr, sizeof(addr));
185 static int iface_up(struct ethernet_data *ethernet)
190 DBG("index %d flags %d", ethernet->index, ethernet->flags);
192 sk = socket(PF_INET, SOCK_DGRAM, 0);
196 memset(&ifr, 0, sizeof(ifr));
197 ifr.ifr_ifindex = ethernet->index;
199 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
204 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
209 if (ifr.ifr_flags & IFF_UP) {
214 ifr.ifr_flags |= IFF_UP;
216 if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0) {
229 static int iface_down(struct ethernet_data *ethernet)
234 DBG("index %d flags %d", ethernet->index, ethernet->flags);
236 sk = socket(PF_INET, SOCK_DGRAM, 0);
240 memset(&ifr, 0, sizeof(ifr));
241 ifr.ifr_ifindex = ethernet->index;
243 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
248 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
253 if (!(ifr.ifr_flags & IFF_UP)) {
258 ifr.ifr_flags &= ~IFF_UP;
260 if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0)
271 static int ethernet_probe(struct connman_element *element)
273 struct ethernet_data *ethernet;
275 DBG("element %p name %s", element, element->name);
277 ethernet = g_try_new0(struct ethernet_data, 1);
278 if (ethernet == NULL)
281 g_static_mutex_lock(ðernet_mutex);
282 ethernet_list = g_slist_append(ethernet_list, element);
283 g_static_mutex_unlock(ðernet_mutex);
285 connman_element_set_data(element, ethernet);
287 ethernet->index = element->index;
296 static void ethernet_remove(struct connman_element *element)
298 struct ethernet_data *ethernet = connman_element_get_data(element);
300 DBG("element %p name %s", element, element->name);
302 connman_element_set_data(element, NULL);
304 iface_down(ethernet);
306 g_static_mutex_lock(ðernet_mutex);
307 ethernet_list = g_slist_remove(ethernet_list, element);
308 g_static_mutex_unlock(ðernet_mutex);
313 static struct connman_driver ethernet_driver = {
315 .type = CONNMAN_ELEMENT_TYPE_DEVICE,
316 .subtype = CONNMAN_ELEMENT_SUBTYPE_ETHERNET,
317 .probe = ethernet_probe,
318 .remove = ethernet_remove,
321 static int rtnl_init(void)
323 struct sockaddr_nl addr;
328 sk = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
332 memset(&addr, 0, sizeof(addr));
333 addr.nl_family = AF_NETLINK;
334 addr.nl_groups = RTMGRP_LINK;
336 if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
342 channel = g_io_channel_unix_new(sk);
343 g_io_channel_set_close_on_unref(channel, TRUE);
345 g_io_add_watch(channel, G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
351 static void rtnl_cleanup(void)
355 g_io_channel_shutdown(channel, TRUE, NULL);
356 g_io_channel_unref(channel);
359 static int ethernet_init(void)
367 err = connman_driver_register(ðernet_driver);
376 static void ethernet_exit(void)
378 connman_driver_unregister(ðernet_driver);
383 CONNMAN_PLUGIN_DEFINE("ethernet", "Ethernet interface plugin", VERSION,
384 ethernet_init, ethernet_exit)