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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* m_pedit_tcp.c packet editor: TCP header
*
* Authors: J Hadi Salim (hadi@cyberus.ca)
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.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_tcp(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_TCP;
if (strcmp(*argv, "sport") == 0) {
NEXT_ARG();
tkey->off = 0;
res = parse_cmd(&argc, &argv, 2, TU32, RU16, sel, tkey, 0);
goto done;
}
if (strcmp(*argv, "dport") == 0) {
NEXT_ARG();
tkey->off = 2;
res = parse_cmd(&argc, &argv, 2, TU32, RU16, sel, tkey, 0);
goto done;
}
if (strcmp(*argv, "flags") == 0) {
NEXT_ARG();
tkey->off = 13;
res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey, 0);
goto done;
}
return -1;
done:
*argc_p = argc;
*argv_p = argv;
return res;
}
struct m_pedit_util p_pedit_tcp = {
.id = "tcp",
.parse_peopt = parse_tcp,
};
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