30 void rtnl_close(struct rtnl_handle *rth)  in rtnl_close()  argument
32 	if (rth->fd >= 0) {  in rtnl_close()
33 		close(rth->fd);  in rtnl_close()
34 		rth->fd = -1;  in rtnl_close()
38 int rtnl_open_byproto(struct rtnl_handle *rth, unsigned subscriptions,  in rtnl_open_byproto()  argument
44 	memset(rth, 0, sizeof(*rth));  in rtnl_open_byproto()
46 	rth->fd = socket(AF_NETLINK, SOCK_RAW, protocol);  in rtnl_open_byproto()
47 	if (rth->fd < 0) {  in rtnl_open_byproto()
52 	if (setsockopt(rth->fd,SOL_SOCKET,SO_SNDBUF,&sndbuf,sizeof(sndbuf)) < 0) {  in rtnl_open_byproto()
57 	if (setsockopt(rth->fd,SOL_SOCKET,SO_RCVBUF,&rcvbuf,sizeof(rcvbuf)) < 0) {  in rtnl_open_byproto()
62 	memset(&rth->local, 0, sizeof(rth->local));  in rtnl_open_byproto()
63 	rth->local.nl_family = AF_NETLINK;  in rtnl_open_byproto()
64 	rth->local.nl_groups = subscriptions;  in rtnl_open_byproto()
66 	if (bind(rth->fd, (struct sockaddr*)&rth->local, sizeof(rth->local)) < 0) {  in rtnl_open_byproto()
70 	addr_len = sizeof(rth->local);  in rtnl_open_byproto()
71 	if (getsockname(rth->fd, (struct sockaddr*)&rth->local, &addr_len) < 0) {  in rtnl_open_byproto()
75 	if (addr_len != sizeof(rth->local)) {  in rtnl_open_byproto()
79 	if (rth->local.nl_family != AF_NETLINK) {  in rtnl_open_byproto()
80 		fprintf(stderr, "Wrong address family %d\n", rth->local.nl_family);  in rtnl_open_byproto()
83 	rth->seq = time(NULL);  in rtnl_open_byproto()
87 int rtnl_open(struct rtnl_handle *rth, unsigned subscriptions)  in rtnl_open()  argument
89 	return rtnl_open_byproto(rth, subscriptions, NETLINK_ROUTE);  in rtnl_open()
92 int rtnl_wilddump_request(struct rtnl_handle *rth, int family, int type)  in rtnl_wilddump_request()  argument
107 	req.nlh.nlmsg_seq = rth->dump = ++rth->seq;  in rtnl_wilddump_request()
114 	return send(rth->fd, (void*)&req, sizeof(req), 0);  in rtnl_wilddump_request()
117 int rtnl_send(struct rtnl_handle *rth, const void *buf, int len)  in rtnl_send()  argument
119 	return send(rth->fd, buf, len, 0);  in rtnl_send()
122 int rtnl_send_check(struct rtnl_handle *rth, const void *buf, int len)  in rtnl_send_check()  argument
128 	status = send(rth->fd, buf, len, 0);  in rtnl_send_check()
133 	status = recv(rth->fd, resp, sizeof(resp), MSG_DONTWAIT|MSG_PEEK);  in rtnl_send_check()
155 int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int len)  in rtnl_dump_request()  argument
174 	nlh.nlmsg_seq = rth->dump = ++rth->seq;  in rtnl_dump_request()
176 	return sendmsg(rth->fd, &msg, 0);  in rtnl_dump_request()
179 int rtnl_dump_filter_l(struct rtnl_handle *rth,  in rtnl_dump_filter_l()  argument
200 		status = recvmsg(rth->fd, &msg, 0);  in rtnl_dump_filter_l()
223 				    h->nlmsg_pid != rth->local.nl_pid ||  in rtnl_dump_filter_l()
224 				    h->nlmsg_seq != rth->dump)  in rtnl_dump_filter_l()
265 int rtnl_dump_filter(struct rtnl_handle *rth,  in rtnl_dump_filter()  argument
274 	return rtnl_dump_filter_l(rth, a);  in rtnl_dump_filter()