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/* SPDX-License-Identifier: GPL-2.0 */
/*
* m_connmark.c Connection tracking marking import
*
* Copyright (c) 2011 Felix Fietkau <nbd@openwrt.org>
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "utils.h"
#include "tc_util.h"
#include <linux/tc_act/tc_connmark.h>
static void
explain(void)
{
fprintf(stderr,
"Usage: ... connmark [zone ZONE] [CONTROL] [index <INDEX>]\n"
"where :\n"
"\tZONE is the conntrack zone\n"
"\tCONTROL := reclassify | pipe | drop | continue | ok |\n"
"\t goto chain <CHAIN_INDEX>\n");
}
static void
usage(void)
{
explain();
exit(-1);
}
static int
parse_connmark(struct action_util *a, int *argc_p, char ***argv_p, int tca_id,
struct nlmsghdr *n)
{
struct tc_connmark sel = {};
char **argv = *argv_p;
int argc = *argc_p;
int ok = 0;
struct rtattr *tail;
while (argc > 0) {
if (matches(*argv, "connmark") == 0) {
ok = 1;
argc--;
argv++;
} else if (matches(*argv, "help") == 0) {
usage();
} else {
break;
}
}
if (!ok) {
explain();
return -1;
}
if (argc) {
if (matches(*argv, "zone") == 0) {
NEXT_ARG();
if (get_u16(&sel.zone, *argv, 10)) {
fprintf(stderr, "connmark: Illegal \"zone\"\n");
return -1;
}
argc--;
argv++;
}
}
parse_action_control_dflt(&argc, &argv, &sel.action, false, TC_ACT_PIPE);
if (argc) {
if (matches(*argv, "index") == 0) {
NEXT_ARG();
if (get_u32(&sel.index, *argv, 10)) {
fprintf(stderr, "connmark: Illegal \"index\"\n");
return -1;
}
argc--;
argv++;
}
}
tail = addattr_nest(n, MAX_MSG, tca_id);
addattr_l(n, MAX_MSG, TCA_CONNMARK_PARMS, &sel, sizeof(sel));
addattr_nest_end(n, tail);
*argc_p = argc;
*argv_p = argv;
return 0;
}
static int print_connmark(struct action_util *au, FILE *f, struct rtattr *arg)
{
struct rtattr *tb[TCA_CONNMARK_MAX + 1];
struct tc_connmark *ci;
print_string(PRINT_ANY, "kind", "%s ", "connmark");
if (arg == NULL)
return 0;
parse_rtattr_nested(tb, TCA_CONNMARK_MAX, arg);
if (tb[TCA_CONNMARK_PARMS] == NULL) {
fprintf(stderr, "Missing connmark parameters\n");
return -1;
}
ci = RTA_DATA(tb[TCA_CONNMARK_PARMS]);
print_uint(PRINT_ANY, "zone", "zone %u", ci->zone);
print_action_control(f, " ", ci->action, "");
print_nl();
print_uint(PRINT_ANY, "index", "\t index %u", ci->index);
print_int(PRINT_ANY, "ref", " ref %d", ci->refcnt);
print_int(PRINT_ANY, "bind", " bind %d", ci->bindcnt);
if (show_stats) {
if (tb[TCA_CONNMARK_TM]) {
struct tcf_t *tm = RTA_DATA(tb[TCA_CONNMARK_TM]);
print_tm(f, tm);
}
}
print_nl();
return 0;
}
struct action_util connmark_action_util = {
.id = "connmark",
.parse_aopt = parse_connmark,
.print_aopt = print_connmark,
};
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