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/*
* link_veth.c veth driver module
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Authors: Pavel Emelianov <xemul@openvz.org>
*
*/
#include <string.h>
#include <net/if.h>
#include <linux/veth.h>
#include "utils.h"
#include "ip_common.h"
static void usage(void)
{
printf("Usage: ip link <options> type veth "
"[peer <options>]\nTo get <options> type "
"'ip link add help'\n");
}
static int veth_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *hdr)
{
char *name, *type, *link, *dev;
int err, len;
struct rtattr * data;
if (strcmp(argv[0], "peer") != 0) {
usage();
return -1;
}
data = NLMSG_TAIL(hdr);
addattr_l(hdr, 1024, VETH_INFO_PEER, NULL, 0);
hdr->nlmsg_len += sizeof(struct ifinfomsg);
err = iplink_parse(argc - 1, argv + 1, (struct iplink_req *)hdr,
&name, &type, &link, &dev);
if (err < 0)
return err;
if (name) {
len = strlen(name) + 1;
if (len > IFNAMSIZ)
invarg("\"name\" too long\n", *argv);
addattr_l(hdr, 1024, IFLA_IFNAME, name, len);
}
data->rta_len = (void *)NLMSG_TAIL(hdr) - (void *)data;
return argc - 1 - err;
}
struct link_util veth_link_util = {
.id = "veth",
.parse_opt = veth_parse_opt,
};
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