90 lines
1.6 KiB
C
90 lines
1.6 KiB
C
/*
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* link_veth.c veth driver module
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Pavel Emelianov <xemul@openvz.org>
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*
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*/
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#include <string.h>
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#include "utils.h"
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#include "ip_common.h"
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#include "veth.h"
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#define ETH_ALEN 6
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static void usage(void)
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{
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printf("Usage: ip link add ... type veth "
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"[peer <peer-name>] [mac <mac>] [peer_mac <mac>]\n");
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}
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static int veth_parse_opt(struct link_util *lu, int argc, char **argv,
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struct nlmsghdr *hdr)
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{
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__u8 mac[ETH_ALEN];
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for (; argc != 0; argv++, argc--) {
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if (strcmp(*argv, "peer") == 0) {
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argv++;
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argc--;
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if (argc == 0) {
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usage();
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return -1;
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}
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addattr_l(hdr, 1024, VETH_INFO_PEER,
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*argv, strlen(*argv));
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continue;
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}
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if (strcmp(*argv, "mac") == 0) {
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argv++;
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argc--;
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if (argc == 0) {
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usage();
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return -1;
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}
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if (hexstring_a2n(*argv, mac, sizeof(mac)) == NULL)
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return -1;
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addattr_l(hdr, 1024, VETH_INFO_MAC,
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mac, ETH_ALEN);
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continue;
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}
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if (strcmp(*argv, "peer_mac") == 0) {
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argv++;
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argc--;
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if (argc == 0) {
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usage();
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return -1;
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}
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if (hexstring_a2n(*argv, mac, sizeof(mac)) == NULL)
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return -1;
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addattr_l(hdr, 1024, VETH_INFO_PEER_MAC,
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mac, ETH_ALEN);
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continue;
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}
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usage();
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return -1;
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}
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return 0;
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}
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struct link_util veth_link_util = {
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.id = "veth",
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.parse_opt = veth_parse_opt,
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};
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