1 /* SPDX-License-Identifier: LGPL-2.1-only */
2
3 #include "nl-default.h"
4
5 #include <linux/netlink.h>
6
7 #include <netlink/netlink.h>
8 #include <netlink/route/link.h>
9 #include <netlink/route/link/geneve.h>
10
11 #define IPv6 1
12
main(int argc,char * argv[])13 int main(int argc, char *argv[])
14 {
15 struct rtnl_link *link;
16 struct nl_addr *addr;
17 struct nl_sock *sk;
18 int err;
19
20 sk = nl_socket_alloc();
21 if ((err = nl_connect(sk, NETLINK_ROUTE)) < 0) {
22 nl_perror(err, "Unable to connect socket");
23 return err;
24 }
25
26 link = rtnl_link_geneve_alloc();
27
28 rtnl_link_set_name(link, "gnv123");
29
30 if ((err = rtnl_link_geneve_set_id(link, 123)) < 0) {
31 nl_perror(err, "Unable to set GENEVE ID");
32 return err;
33 }
34
35 #if IPv6
36 if ((err = nl_addr_parse("2001:0db8:0:f101::1/64", AF_INET6, &addr)) < 0) {
37 nl_perror(err, "Unable to parse IPv6 address");
38 return err;
39 }
40 if ((err = rtnl_link_geneve_set_label(link, 123)) < 0) {
41 nl_perror(err, "Unable to set label");
42 return err;
43 }
44
45 if ((err = rtnl_link_geneve_set_udp_zero_csum6_tx(link, 1)) < 0) {
46 nl_perror(err, "Unable to set skip transmitted UDP checksum");
47 return err;
48 }
49
50 if ((err = rtnl_link_geneve_set_udp_zero_csum6_rx(link, 1)) < 0) {
51 nl_perror(err, "Unable to set skip received UDP checksum");
52 return err;
53 }
54 #else
55 if ((err = nl_addr_parse("10.4.4.4", AF_INET, &addr)) < 0) {
56 nl_perror(err, "Unable to parse IP address");
57 return err;
58 }
59 #endif
60
61 if ((err = rtnl_link_geneve_set_remote(link, addr)) < 0) {
62 nl_perror(err, "Unable to set remote address");
63 return err;
64 }
65 nl_addr_put(addr);
66
67 if ((err = rtnl_link_geneve_set_ttl(link, 1)) < 0) {
68 nl_perror(err, "Unable to set TTL");
69 return err;
70 }
71
72 if ((err = rtnl_link_geneve_set_tos(link, 0)) < 0) {
73 nl_perror(err, "Unable to set ToS");
74 return err;
75 }
76
77 if ((err = rtnl_link_geneve_set_port(link, 5060)) < 0) {
78 nl_perror(err, "Unable to set port");
79 return err;
80 }
81
82 if ((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0) {
83 nl_perror(err, "Unable to add link");
84 return err;
85 }
86
87 rtnl_link_put(link);
88 nl_close(sk);
89
90 return 0;
91 }
92