mirror of
https://git.proxmox.com/git/mirror_iproute2
synced 2025-10-23 15:32:40 +00:00
c14f9d92ee
We have helper routines to support nested attribute addition into netlink buffer: use them instead of open coding. Use addattr_nest_compat()/addattr_nest_compat_end() where appropriate. Signed-off-by: Serhey Popovych <serhe.popovych@gmail.com> Signed-off-by: David Ahern <dsahern@gmail.com>
98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/*
|
|
* 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 print_usage(FILE *f)
|
|
{
|
|
printf("Usage: ip link <options> type veth [peer <options>]\n"
|
|
"To get <options> type 'ip link add help'\n");
|
|
}
|
|
|
|
static void usage(void)
|
|
{
|
|
print_usage(stderr);
|
|
}
|
|
|
|
static int veth_parse_opt(struct link_util *lu, int argc, char **argv,
|
|
struct nlmsghdr *n)
|
|
{
|
|
char *dev = NULL;
|
|
char *name = NULL;
|
|
char *link = NULL;
|
|
char *type = NULL;
|
|
int index = 0;
|
|
int err;
|
|
struct rtattr *data;
|
|
int group;
|
|
struct ifinfomsg *ifm, *peer_ifm;
|
|
unsigned int ifi_flags, ifi_change;
|
|
|
|
if (strcmp(argv[0], "peer") != 0) {
|
|
usage();
|
|
return -1;
|
|
}
|
|
|
|
ifm = NLMSG_DATA(n);
|
|
ifi_flags = ifm->ifi_flags;
|
|
ifi_change = ifm->ifi_change;
|
|
ifm->ifi_flags = 0;
|
|
ifm->ifi_change = 0;
|
|
|
|
data = addattr_nest(n, 1024, VETH_INFO_PEER);
|
|
|
|
n->nlmsg_len += sizeof(struct ifinfomsg);
|
|
|
|
err = iplink_parse(argc - 1, argv + 1, (struct iplink_req *)n,
|
|
&name, &type, &link, &dev, &group, &index);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (type)
|
|
duparg("type", argv[err]);
|
|
|
|
if (name) {
|
|
addattr_l(n, 1024,
|
|
IFLA_IFNAME, name, strlen(name) + 1);
|
|
}
|
|
|
|
peer_ifm = RTA_DATA(data);
|
|
peer_ifm->ifi_index = index;
|
|
peer_ifm->ifi_flags = ifm->ifi_flags;
|
|
peer_ifm->ifi_change = ifm->ifi_change;
|
|
ifm->ifi_flags = ifi_flags;
|
|
ifm->ifi_change = ifi_change;
|
|
|
|
if (group != -1)
|
|
addattr32(n, 1024, IFLA_GROUP, group);
|
|
|
|
addattr_nest_end(n, data);
|
|
return argc - 1 - err;
|
|
}
|
|
|
|
static void veth_print_help(struct link_util *lu, int argc, char **argv,
|
|
FILE *f)
|
|
{
|
|
print_usage(f);
|
|
}
|
|
|
|
struct link_util veth_link_util = {
|
|
.id = "veth",
|
|
.parse_opt = veth_parse_opt,
|
|
.print_help = veth_print_help,
|
|
};
|