third_party_libnl/tests/test-create-veth.c
Cong Wang 0ba7e663ce veth: grab a reference for rtnl_link_veth_get_peer()
So that users could keep a refcount for the peer.
The capability trick is from Thomas Haller.

Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Thomas Haller <thaller@redhat.com>
2014-04-30 11:08:15 +02:00

43 lines
886 B
C

#include <netlink/netlink.h>
#include <netlink/route/link.h>
#include <netlink/route/link/veth.h>
int main(int argc, char *argv[])
{
struct rtnl_link *link;
struct nl_sock *sk;
int err;
struct rtnl_link *peer;
sk = nl_socket_alloc();
if ((err = nl_connect(sk, NETLINK_ROUTE)) < 0) {
nl_perror(err, "Unable to connect socket");
return err;
}
#if 0
rtnl_link_veth_add(sk, "veth2", "veth3", getpid());
#else
link = rtnl_link_veth_alloc();
if (!link) {
nl_perror(err, "Unable to alloc link");
return err;
}
rtnl_link_set_name(link, "veth8");
peer = rtnl_link_veth_get_peer(link);
rtnl_link_set_name(peer, "veth9");
if ((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0) {
nl_perror(err, "Unable to add link");
return err;
}
printf("peer is %s\n", rtnl_link_get_name(peer));
rtnl_link_put(peer);
rtnl_link_put(link);
#endif
nl_close(sk);
return 0;
}