1 /* SPDX-License-Identifier: LGPL-2.1-only */
2
3 #include "nl-default.h"
4
5 #include <netlink/route/link/xfrmi.h>
6
main(int argc,char * argv[])7 int main(int argc, char *argv[])
8 {
9 struct nl_cache *link_cache;
10 struct rtnl_link *link;
11 struct nl_sock *sk;
12 int err, if_index;
13
14 sk = nl_socket_alloc();
15 if ((err = nl_connect(sk, NETLINK_ROUTE)) < 0) {
16 nl_perror(err, "Unable to connect socket");
17 return err;
18 }
19
20 err = rtnl_link_alloc_cache(sk, AF_UNSPEC, &link_cache);
21 if (err < 0) {
22 nl_perror(err, "Unable to allocate cache");
23 return err;
24 }
25
26 if_index = rtnl_link_name2i(link_cache, "eth0");
27 if (!if_index) {
28 fprintf(stderr, "Unable to lookup eth0");
29 return -1;
30 }
31
32 link = rtnl_link_xfrmi_alloc();
33 if (!link) {
34 nl_perror(err, "Unable to allocate link");
35 return -1;
36
37 }
38
39 rtnl_link_set_name(link, "ipsec0");
40 rtnl_link_xfrmi_set_link(link, if_index);
41 rtnl_link_xfrmi_set_if_id(link, 16);
42
43 err = rtnl_link_add(sk, link, NLM_F_CREATE);
44 if (err < 0) {
45 nl_perror(err, "Unable to add link");
46 return err;
47 }
48
49 rtnl_link_put(link);
50 nl_close(sk);
51 return 0;
52 }
53