1 #include <netlink/netlink.h>
2 #include <netlink/route/link.h>
3 #include <netlink/route/link/vlan.h>
4
main(int argc,char * argv[])5 int main(int argc, char *argv[])
6 {
7 struct rtnl_link *link;
8 struct nl_cache *link_cache;
9 struct nl_sock *sk;
10 int err, master_index;
11
12 sk = nl_socket_alloc();
13 if ((err = nl_connect(sk, NETLINK_ROUTE)) < 0) {
14 nl_perror(err, "Unable to connect socket");
15 return err;
16 }
17
18 if ((err = rtnl_link_alloc_cache(sk, AF_UNSPEC, &link_cache)) < 0) {
19 nl_perror(err, "Unable to allocate cache");
20 return err;
21 }
22
23 if (!(master_index = rtnl_link_name2i(link_cache, "eth0"))) {
24 fprintf(stderr, "Unable to lookup eth0");
25 return -1;
26 }
27
28 link = rtnl_link_vlan_alloc();
29
30 rtnl_link_set_link(link, master_index);
31
32 rtnl_link_vlan_set_id(link, 10);
33
34 if ((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0) {
35 nl_perror(err, "Unable to add link");
36 return err;
37 }
38
39 rtnl_link_put(link);
40 nl_close(sk);
41
42 return 0;
43 }
44