mirror of
https://git.kernel.org/pub/scm/network/iproute2/iproute2.git
synced 2024-11-27 03:44:44 +08:00
c37d21944b
Use SPDX instead of boilerplate text for ip and related sub commands. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* iplink_vxcan.c vxcan device support (Virtual CAN Tunnel)
|
|
*
|
|
* Author: Oliver Hartkopp <socketcan@hartkopp.net>
|
|
* Based on: link_veth.c from Pavel Emelianov <xemul@openvz.org>
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <net/if.h>
|
|
#include <linux/can/vxcan.h>
|
|
|
|
#include "utils.h"
|
|
#include "ip_common.h"
|
|
|
|
static void print_usage(FILE *f)
|
|
{
|
|
printf("Usage: ip link <options> type vxcan [peer <options>]\n"
|
|
"To get <options> type 'ip link add help'\n");
|
|
}
|
|
|
|
static void usage(void)
|
|
{
|
|
print_usage(stderr);
|
|
}
|
|
|
|
static int vxcan_parse_opt(struct link_util *lu, int argc, char **argv,
|
|
struct nlmsghdr *n)
|
|
{
|
|
char *type = NULL;
|
|
int err;
|
|
struct rtattr *data;
|
|
struct ifinfomsg *ifm, *peer_ifm;
|
|
unsigned int ifi_flags, ifi_change, ifi_index;
|
|
|
|
if (strcmp(argv[0], "peer") != 0) {
|
|
usage();
|
|
return -1;
|
|
}
|
|
|
|
ifm = NLMSG_DATA(n);
|
|
ifi_flags = ifm->ifi_flags;
|
|
ifi_change = ifm->ifi_change;
|
|
ifi_index = ifm->ifi_index;
|
|
ifm->ifi_flags = 0;
|
|
ifm->ifi_change = 0;
|
|
ifm->ifi_index = 0;
|
|
|
|
data = addattr_nest(n, 1024, VXCAN_INFO_PEER);
|
|
|
|
n->nlmsg_len += sizeof(struct ifinfomsg);
|
|
|
|
err = iplink_parse(argc - 1, argv + 1, (struct iplink_req *)n, &type);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (type)
|
|
duparg("type", argv[err]);
|
|
|
|
peer_ifm = RTA_DATA(data);
|
|
peer_ifm->ifi_index = ifm->ifi_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;
|
|
ifm->ifi_index = ifi_index;
|
|
|
|
addattr_nest_end(n, data);
|
|
return argc - 1 - err;
|
|
}
|
|
|
|
static void vxcan_print_help(struct link_util *lu, int argc, char **argv,
|
|
FILE *f)
|
|
{
|
|
print_usage(f);
|
|
}
|
|
|
|
struct link_util vxcan_link_util = {
|
|
.id = "vxcan",
|
|
.parse_opt = vxcan_parse_opt,
|
|
.print_help = vxcan_print_help,
|
|
};
|