-static gboolean rtnl_event(GIOChannel *chan, GIOCondition cond, gpointer data)
-{
- unsigned char buf[1024];
- void *ptr = buf;
- gsize len;
- GIOError err;
-
- if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
- return FALSE;
-
- memset(buf, 0, sizeof(buf));
-
- err = g_io_channel_read(chan, (gchar *) buf, sizeof(buf), &len);
- if (err) {
- if (err == G_IO_ERROR_AGAIN)
- return TRUE;
- return FALSE;
- }
-
- DBG("buf %p len %zd", buf, len);
-
- while (len > 0) {
- struct nlmsghdr *hdr = ptr;
- struct nlmsgerr *err;
-
- if (!NLMSG_OK(hdr, len))
- break;
-
- DBG("len %d type %d flags 0x%04x seq %d",
- hdr->nlmsg_len, hdr->nlmsg_type,
- hdr->nlmsg_flags, hdr->nlmsg_seq);
-
- switch (hdr->nlmsg_type) {
- case NLMSG_ERROR:
- err = NLMSG_DATA(hdr);
- DBG("ERROR %d (%s)", -err->error,
- strerror(-err->error));
- break;
-
- case RTM_NEWLINK:
- rtnl_link(hdr, "NEWLINK");
- break;
-
- case RTM_DELLINK:
- rtnl_link(hdr, "DELLINK");
- break;
- }
-
- len -= hdr->nlmsg_len;
- ptr += hdr->nlmsg_len;
- }
-
- return TRUE;
-}
-
-static GIOChannel *channel;
-
-static int rtnl_request(void)
-{
- struct {
- struct nlmsghdr hdr;
- struct rtgenmsg msg;
- } req;
-
- struct sockaddr_nl addr;
- int sk;
-
- DBG("");
-
- memset(&req, 0, sizeof(req));
- req.hdr.nlmsg_len = sizeof(req.hdr) + sizeof(req.msg);
- req.hdr.nlmsg_type = RTM_GETLINK;
- req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
- req.hdr.nlmsg_pid = 0;
- req.hdr.nlmsg_seq = 42;
- req.msg.rtgen_family = AF_INET;
-
- sk = g_io_channel_unix_get_fd(channel);
-
- memset(&addr, 0, sizeof(addr));
- addr.nl_family = AF_NETLINK;
-
- return sendto(sk, &req, sizeof(req), 0,
- (struct sockaddr *) &addr, sizeof(addr));
-}