libnl 3.5.0

nl-link-enslave.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * src/nl-link-enslave.c Enslave a link
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation version 2.1
8 * of the License.
9 *
10 * Copyright (c) 2011 Thomas Graf <tgraf@suug.ch>
11 */
12
13 #include <netlink/cli/utils.h>
14 #include <netlink/cli/link.h>
15 #include <netlink/route/link/bonding.h>
16
17 #include <linux/netlink.h>
18
19 int main(int argc, char *argv[])
20 {
21 struct nl_sock *sock;
22 struct nl_cache *link_cache;
23 struct rtnl_link *master, *slave;
24 int err;
25
26 if (argc < 3) {
27 fprintf(stderr, "Usage: nl-link-enslave master slave\n");
28 return 1;
29 }
30
31 sock = nl_cli_alloc_socket();
32 nl_cli_connect(sock, NETLINK_ROUTE);
33 link_cache = nl_cli_link_alloc_cache(sock);
34
35 if (!(master = rtnl_link_get_by_name(link_cache, argv[1]))) {
36 fprintf(stderr, "Unknown link: %s\n", argv[1]);
37 return 1;
38 }
39
40 if (!(slave = rtnl_link_get_by_name(link_cache, argv[2]))) {
41 fprintf(stderr, "Unknown link: %s\n", argv[2]);
42 return 1;
43 }
44
45 if ((err = rtnl_link_bond_enslave(sock, master, slave)) < 0) {
46 fprintf(stderr, "Unable to enslave %s to %s: %s\n",
47 argv[2], argv[1], nl_geterror(err));
48 return 1;
49 }
50
51 return 0;
52 }
53
rtnl_link_get_by_name
struct rtnl_link * rtnl_link_get_by_name(struct nl_cache *cache, const char *name)
Lookup link in cache by link name.
Definition: link.c:1337
rtnl_link
Link object.
rtnl_link_bond_enslave
int rtnl_link_bond_enslave(struct nl_sock *sock, struct rtnl_link *master, struct rtnl_link *slave)
Add a link to a bond (enslave)
Definition: bonding.c:164