mirror of
https://git.proxmox.com/git/mirror_iproute2
synced 2025-11-04 06:22:48 +00:00
f3e1b2448a
Add support for modifying IPv6 headers using pedit. Signed-off-by: Amir Vadai <amir@vadai.me>
92 lines
1.8 KiB
C
92 lines
1.8 KiB
C
/*
|
|
* p_ip6.c packet editor: IPV6 header
|
|
*
|
|
* This program is free software; you can distribute 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: Amir Vadai <amir@vadai.me>
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <syslog.h>
|
|
#include <fcntl.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <string.h>
|
|
#include "utils.h"
|
|
#include "tc_util.h"
|
|
#include "m_pedit.h"
|
|
|
|
static int
|
|
parse_ip6(int *argc_p, char ***argv_p,
|
|
struct m_pedit_sel *sel, struct m_pedit_key *tkey)
|
|
{
|
|
int res = -1;
|
|
int argc = *argc_p;
|
|
char **argv = *argv_p;
|
|
|
|
if (argc < 2)
|
|
return -1;
|
|
|
|
if (!sel->extended)
|
|
return -1;
|
|
|
|
tkey->htype = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6;
|
|
|
|
if (strcmp(*argv, "src") == 0) {
|
|
NEXT_ARG();
|
|
tkey->off = 8;
|
|
res = parse_cmd(&argc, &argv, 16, TIPV6, RU32, sel, tkey);
|
|
goto done;
|
|
}
|
|
if (strcmp(*argv, "dst") == 0) {
|
|
NEXT_ARG();
|
|
tkey->off = 24;
|
|
res = parse_cmd(&argc, &argv, 16, TIPV6, RU32, sel, tkey);
|
|
goto done;
|
|
}
|
|
if (strcmp(*argv, "flow_lbl") == 0) {
|
|
NEXT_ARG();
|
|
tkey->off = 0;
|
|
res = parse_cmd(&argc, &argv, 4, TU32, 0x0007ffff, sel, tkey);
|
|
goto done;
|
|
}
|
|
if (strcmp(*argv, "payload_len") == 0) {
|
|
NEXT_ARG();
|
|
tkey->off = 4;
|
|
res = parse_cmd(&argc, &argv, 2, TU32, RU16, sel, tkey);
|
|
goto done;
|
|
}
|
|
if (strcmp(*argv, "nexthdr") == 0) {
|
|
NEXT_ARG();
|
|
tkey->off = 6;
|
|
res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey);
|
|
goto done;
|
|
}
|
|
if (strcmp(*argv, "hoplimit") == 0) {
|
|
NEXT_ARG();
|
|
tkey->off = 7;
|
|
res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey);
|
|
goto done;
|
|
}
|
|
|
|
return -1;
|
|
|
|
done:
|
|
*argc_p = argc;
|
|
*argv_p = argv;
|
|
return res;
|
|
}
|
|
|
|
struct m_pedit_util p_pedit_ip6 = {
|
|
NULL,
|
|
"ipv6",
|
|
parse_ip6,
|
|
};
|