tc/m_xt_old.c - maze/iproute2 - Git at Google

 /*
  * m_xt.c	xtables based targets
  * 		utilities mostly ripped from iptables <duh, its the linux way>
  *
  *		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:  J Hadi Salim (hadi@cyberus.ca)
  */

 /*XXX: in the future (xtables 1.4.3?) get rid of everything tagged
  * as TC_CONFIG_XT_H */

 #include <syslog.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <net/if.h>
 #include <linux/netfilter.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <xtables.h>
 #include "utils.h"
 #include "tc_util.h"
 #include <linux/tc_act/tc_ipt.h>
 #include <stdio.h>
 #include <getopt.h>
 #include <errno.h>
 #include <string.h>
 #include <netdb.h>
 #include <stdlib.h>
 #include <ctype.h>
 #include <stdarg.h>
 #include <limits.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/wait.h>
 #ifdef TC_CONFIG_XT_H
 #include "xt-internal.h"
 #endif

 #ifndef ALIGN
 #define ALIGN(x,a)		__ALIGN_MASK(x,(typeof(x))(a)-1)
 #define __ALIGN_MASK(x,mask)	(((x)+(mask))&~(mask))
 #endif

 static const char *pname = "tc-ipt";
 static const char *tname = "mangle";
 static const char *pversion = "0.2";

 static const char *ipthooks[] = {
 	"NF_IP_PRE_ROUTING",
 	"NF_IP_LOCAL_IN",
 	"NF_IP_FORWARD",
 	"NF_IP_LOCAL_OUT",
 	"NF_IP_POST_ROUTING",
 };

 static struct option original_opts[] = {
 	{"jump", 1, 0, 'j'},
 	{0, 0, 0, 0}
 };

 static struct option *opts = original_opts;
 static unsigned int global_option_offset = 0;
 char *lib_dir;
 const char *program_version = XTABLES_VERSION;
 const char *program_name = "tc-ipt";
 struct afinfo afinfo = {
 	.family         = AF_INET,
 	.libprefix      = "libxt_",
 	.ipproto        = IPPROTO_IP,
 	.kmod           = "ip_tables",
 	.so_rev_target  = IPT_SO_GET_REVISION_TARGET,
 };


 #define OPTION_OFFSET 256

 /*XXX: TC_CONFIG_XT_H */
 static void free_opts(struct option *local_opts)
 {
 	if (local_opts != original_opts) {
 		free(local_opts);
 		opts = original_opts;
 		global_option_offset = 0;
 	}
 }

 /*XXX: TC_CONFIG_XT_H */
 static struct option *
 merge_options(struct option *oldopts, const struct option *newopts,
 	      unsigned int *option_offset)
 {
 	struct option *merge;
 	unsigned int num_old, num_new, i;

 	for (num_old = 0; oldopts[num_old].name; num_old++) ;
 	for (num_new = 0; newopts[num_new].name; num_new++) ;

 	*option_offset = global_option_offset + OPTION_OFFSET;

 	merge = malloc(sizeof (struct option) * (num_new + num_old + 1));
 	memcpy(merge, oldopts, num_old * sizeof (struct option));
 	for (i = 0; i < num_new; i++) {
 		merge[num_old + i] = newopts[i];
 		merge[num_old + i].val += *option_offset;
 	}
 	memset(merge + num_old + num_new, 0, sizeof (struct option));

 	return merge;
 }


 /*XXX: TC_CONFIG_XT_H */
 #ifndef TRUE
 #define TRUE 1
 #endif
 #ifndef FALSE
 #define FALSE 0
 #endif

 /*XXX: TC_CONFIG_XT_H */
 int
 check_inverse(const char option[], int *invert, int *my_optind, int argc)
 {
         if (option && strcmp(option, "!") == 0) {
                 if (*invert)
                         exit_error(PARAMETER_PROBLEM,
                                    "Multiple `!' flags not allowed");
                 *invert = TRUE;
                 if (my_optind != NULL) {
                         ++*my_optind;
                         if (argc && *my_optind > argc)
                                 exit_error(PARAMETER_PROBLEM,
                                            "no argument following `!'");
                 }

                 return TRUE;
         }
         return FALSE;
 }

 /*XXX: TC_CONFIG_XT_H */
 void exit_error(enum exittype status, const char *msg, ...)
 {
         va_list args;

         va_start(args, msg);
         fprintf(stderr, "%s v%s: ", pname, pversion);
         vfprintf(stderr, msg, args);
         va_end(args);
         fprintf(stderr, "\n");
         /* On error paths, make sure that we don't leak memory */
         exit(status);
 }

 /*XXX: TC_CONFIG_XT_H */
 static void set_revision(char *name, u_int8_t revision)
 {
 	/* Old kernel sources don't have ".revision" field,
 	*  but we stole a byte from name. */
 	name[IPT_FUNCTION_MAXNAMELEN - 2] = '\0';
 	name[IPT_FUNCTION_MAXNAMELEN - 1] = revision;
 }

 /*
  * we may need to check for version mismatch
 */
 int
 build_st(struct xtables_target *target, struct xt_entry_target *t)
 {

 	size_t size =
 		    XT_ALIGN(sizeof (struct xt_entry_target)) + target->size;

 	if (NULL == t) {
 		target->t = fw_calloc(1, size);
 		target->t->u.target_size = size;
 		strcpy(target->t->u.user.name, target->name);
 		set_revision(target->t->u.user.name, target->revision);

 		if (target->init != NULL)
 			target->init(target->t);
 	} else {
 		target->t = t;
 	}
 	return 0;

 }

 inline void set_lib_dir(void)
 {

 	lib_dir = getenv("XTABLES_LIBDIR");
 	if (!lib_dir) {
 		lib_dir = getenv("IPTABLES_LIB_DIR");
 		if (lib_dir)
 			fprintf(stderr, "using deprecated IPTABLES_LIB_DIR \n");
 	}
 	if (lib_dir == NULL)
 		lib_dir = XT_LIB_DIR;

 }

 static int parse_ipt(struct action_util *a,int *argc_p,
 		     char ***argv_p, int tca_id, struct nlmsghdr *n)
 {
 	struct xtables_target *m = NULL;
 	struct ipt_entry fw;
 	struct rtattr *tail;
 	int c;
 	int rargc = *argc_p;
 	char **argv = *argv_p;
 	int argc = 0, iargc = 0;
 	char k[16];
 	int size = 0;
 	int iok = 0, ok = 0;
 	__u32 hook = 0, index = 0;

 	set_lib_dir();

 	{
 		int i;
 		for (i = 0; i < rargc; i++) {
 			if (NULL == argv[i] || 0 == strcmp(argv[i], "action")) {
 				break;
 			}
 		}
 		iargc = argc = i;
 	}

 	if (argc <= 2) {
 		fprintf(stderr,"bad arguments to ipt %d vs %d \n", argc, rargc);
 		return -1;
 	}

 	while (1) {
 		c = getopt_long(argc, argv, "j:", opts, NULL);
 		if (c == -1)
 			break;
 		switch (c) {
 		case 'j':
 			m = find_target(optarg, TRY_LOAD);
 			if (NULL != m) {

 				if (0 > build_st(m, NULL)) {
 					printf(" %s error \n", m->name);
 					return -1;
 				}
 				opts =
 				    merge_options(opts, m->extra_opts,
 						  &m->option_offset);
 			} else {
 				fprintf(stderr," failed to find target %s\n\n", optarg);
 				return -1;
 			}
 			ok++;
 			break;

 		default:
 			memset(&fw, 0, sizeof (fw));
 			if (m) {
 				m->parse(c - m->option_offset, argv, 0,
 					 &m->tflags, NULL, &m->t);
 			} else {
 				fprintf(stderr," failed to find target %s\n\n", optarg);
 				return -1;

 			}
 			ok++;
 			break;

 		}
 	}

 	if (iargc > optind) {
 		if (matches(argv[optind], "index") == 0) {
 			if (get_u32(&index, argv[optind + 1], 10)) {
 				fprintf(stderr, "Illegal \"index\"\n");
 				free_opts(opts);
 				return -1;
 			}
 			iok++;

 			optind += 2;
 		}
 	}

 	if (!ok && !iok) {
 		fprintf(stderr," ipt Parser BAD!! (%s)\n", *argv);
 		return -1;
 	}

 	/* check that we passed the correct parameters to the target */
 	if (m)
 		m->final_check(m->tflags);

 	{
 		struct tcmsg *t = NLMSG_DATA(n);
 		if (t->tcm_parent != TC_H_ROOT
 		    && t->tcm_parent == TC_H_MAJ(TC_H_INGRESS)) {
 			hook = NF_IP_PRE_ROUTING;
 		} else {
 			hook = NF_IP_POST_ROUTING;
 		}
 	}

 	tail = NLMSG_TAIL(n);
 	addattr_l(n, MAX_MSG, tca_id, NULL, 0);
 	fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
 	fprintf(stdout, "\ttarget: ");

 	if (m)
 		m->print(NULL, m->t, 0);
 	fprintf(stdout, " index %d\n", index);

 	if (strlen(tname) > 16) {
 		size = 16;
 		k[15] = 0;
 	} else {
 		size = 1 + strlen(tname);
 	}
 	strncpy(k, tname, size);

 	addattr_l(n, MAX_MSG, TCA_IPT_TABLE, k, size);
 	addattr_l(n, MAX_MSG, TCA_IPT_HOOK, &hook, 4);
 	addattr_l(n, MAX_MSG, TCA_IPT_INDEX, &index, 4);
 	if (m)
 		addattr_l(n, MAX_MSG, TCA_IPT_TARG, m->t, m->t->u.target_size);
 	tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;

 	argc -= optind;
 	argv += optind;
 	*argc_p = rargc - iargc;
 	*argv_p = argv;

 	optind = 0;
 	free_opts(opts);
 	/* Clear flags if target will be used again */
         m->tflags=0;
         m->used=0;
 	/* Free allocated memory */
         if (m->t)
             free(m->t);


 	return 0;

 }

 static int
 print_ipt(struct action_util *au,FILE * f, struct rtattr *arg)
 {
 	struct rtattr *tb[TCA_IPT_MAX + 1];
 	struct xt_entry_target *t = NULL;

 	if (arg == NULL)
 		return -1;

 	set_lib_dir();

 	parse_rtattr_nested(tb, TCA_IPT_MAX, arg);

 	if (tb[TCA_IPT_TABLE] == NULL) {
 		fprintf(f, "[NULL ipt table name ] assuming mangle ");
 	} else {
 		fprintf(f, "tablename: %s ",
 			rta_getattr_str(tb[TCA_IPT_TABLE]));
 	}

 	if (tb[TCA_IPT_HOOK] == NULL) {
 		fprintf(f, "[NULL ipt hook name ]\n ");
 		return -1;
 	} else {
 		__u32 hook;
 		hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
 		fprintf(f, " hook: %s \n", ipthooks[hook]);
 	}

 	if (tb[TCA_IPT_TARG] == NULL) {
 		fprintf(f, "\t[NULL ipt target parameters ] \n");
 		return -1;
 	} else {
 		struct xtables_target *m = NULL;
 		t = RTA_DATA(tb[TCA_IPT_TARG]);
 		m = find_target(t->u.user.name, TRY_LOAD);
 		if (NULL != m) {
 			if (0 > build_st(m, t)) {
 				fprintf(stderr, " %s error \n", m->name);
 				return -1;
 			}

 			opts =
 			    merge_options(opts, m->extra_opts,
 					  &m->option_offset);
 		} else {
 			fprintf(stderr, " failed to find target %s\n\n",
 				t->u.user.name);
 			return -1;
 		}
 		fprintf(f, "\ttarget ");
 		m->print(NULL, m->t, 0);
 		if (tb[TCA_IPT_INDEX] == NULL) {
 			fprintf(f, " [NULL ipt target index ]\n");
 		} else {
 			__u32 index;
 			index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
 			fprintf(f, " \n\tindex %d", index);
 		}

 		if (tb[TCA_IPT_CNT]) {
 			struct tc_cnt *c  = RTA_DATA(tb[TCA_IPT_CNT]);;
 			fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
 		}
 		if (show_stats) {
 			if (tb[TCA_IPT_TM]) {
 				struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
 				print_tm(f,tm);
 			}
 		}
 		fprintf(f, " \n");

 	}
 	free_opts(opts);

 	return 0;
 }

 struct action_util ipt_action_util = {
         .id = "ipt",
         .parse_aopt = parse_ipt,
         .print_aopt = print_ipt,
 };
	/*
	* m_xt.c xtables based targets
	* utilities mostly ripped from iptables <duh, its the linux way>
	*
	* 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: J Hadi Salim (hadi@cyberus.ca)
	*/

	/*XXX: in the future (xtables 1.4.3?) get rid of everything tagged
	* as TC_CONFIG_XT_H */

	#include <syslog.h>
	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <arpa/inet.h>
	#include <net/if.h>
	#include <linux/netfilter.h>
	#include <linux/netfilter_ipv4/ip_tables.h>
	#include <xtables.h>
	#include "utils.h"
	#include "tc_util.h"
	#include <linux/tc_act/tc_ipt.h>
	#include <stdio.h>
	#include <getopt.h>
	#include <errno.h>
	#include <string.h>
	#include <netdb.h>
	#include <stdlib.h>
	#include <ctype.h>
	#include <stdarg.h>
	#include <limits.h>
	#include <unistd.h>
	#include <fcntl.h>
	#include <sys/wait.h>
	#ifdef TC_CONFIG_XT_H
	#include "xt-internal.h"
	#endif

	#ifndef ALIGN
	#define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1)
	#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))
	#endif

	static const char *pname = "tc-ipt";
	static const char *tname = "mangle";
	static const char *pversion = "0.2";

	static const char *ipthooks[] = {
	"NF_IP_PRE_ROUTING",
	"NF_IP_LOCAL_IN",
	"NF_IP_FORWARD",
	"NF_IP_LOCAL_OUT",
	"NF_IP_POST_ROUTING",
	};

	static struct option original_opts[] = {
	{"jump", 1, 0, 'j'},
	{0, 0, 0, 0}
	};

	static struct option *opts = original_opts;
	static unsigned int global_option_offset = 0;
	char *lib_dir;
	const char *program_version = XTABLES_VERSION;
	const char *program_name = "tc-ipt";
	struct afinfo afinfo = {
	.family = AF_INET,
	.libprefix = "libxt_",
	.ipproto = IPPROTO_IP,
	.kmod = "ip_tables",
	.so_rev_target = IPT_SO_GET_REVISION_TARGET,
	};


	#define OPTION_OFFSET 256

	/XXX: TC_CONFIG_XT_H /
	static void free_opts(struct option *local_opts)
	{
	if (local_opts != original_opts) {
	free(local_opts);
	opts = original_opts;
	global_option_offset = 0;
	}
	}

	/XXX: TC_CONFIG_XT_H /
	static struct option *
	merge_options(struct option oldopts, const struct option newopts,
	unsigned int *option_offset)
	{
	struct option *merge;
	unsigned int num_old, num_new, i;

	for (num_old = 0; oldopts[num_old].name; num_old++) ;
	for (num_new = 0; newopts[num_new].name; num_new++) ;

	*option_offset = global_option_offset + OPTION_OFFSET;

	merge = malloc(sizeof (struct option) * (num_new + num_old + 1));
	memcpy(merge, oldopts, num_old * sizeof (struct option));
	for (i = 0; i < num_new; i++) {
	merge[num_old + i] = newopts[i];
	merge[num_old + i].val += *option_offset;
	}
	memset(merge + num_old + num_new, 0, sizeof (struct option));

	return merge;
	}


	/XXX: TC_CONFIG_XT_H /
	#ifndef TRUE
	#define TRUE 1
	#endif
	#ifndef FALSE
	#define FALSE 0
	#endif

	/XXX: TC_CONFIG_XT_H /
	int
	check_inverse(const char option[], int invert, int my_optind, int argc)
	{
	if (option && strcmp(option, "!") == 0) {
	if (*invert)
	exit_error(PARAMETER_PROBLEM,
	"Multiple `!' flags not allowed");
	*invert = TRUE;
	if (my_optind != NULL) {
	++*my_optind;
	if (argc && *my_optind > argc)
	exit_error(PARAMETER_PROBLEM,
	"no argument following `!'");
	}

	return TRUE;
	}
	return FALSE;
	}

	/XXX: TC_CONFIG_XT_H /
	void exit_error(enum exittype status, const char *msg, ...)
	{
	va_list args;

	va_start(args, msg);
	fprintf(stderr, "%s v%s: ", pname, pversion);
	vfprintf(stderr, msg, args);
	va_end(args);
	fprintf(stderr, "\n");
	/* On error paths, make sure that we don't leak memory */
	exit(status);
	}

	/XXX: TC_CONFIG_XT_H /
	static void set_revision(char *name, u_int8_t revision)
	{
	/* Old kernel sources don't have ".revision" field,
	* but we stole a byte from name. */
	name[IPT_FUNCTION_MAXNAMELEN - 2] = '\0';
	name[IPT_FUNCTION_MAXNAMELEN - 1] = revision;
	}

	/*
	* we may need to check for version mismatch
	*/
	int
	build_st(struct xtables_target target, struct xt_entry_target t)
	{

	size_t size =
	XT_ALIGN(sizeof (struct xt_entry_target)) + target->size;

	if (NULL == t) {
	target->t = fw_calloc(1, size);
	target->t->u.target_size = size;
	strcpy(target->t->u.user.name, target->name);
	set_revision(target->t->u.user.name, target->revision);

	if (target->init != NULL)
	target->init(target->t);
	} else {
	target->t = t;
	}
	return 0;

	}

	inline void set_lib_dir(void)
	{

	lib_dir = getenv("XTABLES_LIBDIR");
	if (!lib_dir) {
	lib_dir = getenv("IPTABLES_LIB_DIR");
	if (lib_dir)
	fprintf(stderr, "using deprecated IPTABLES_LIB_DIR \n");
	}
	if (lib_dir == NULL)
	lib_dir = XT_LIB_DIR;

	}

	static int parse_ipt(struct action_util a,int argc_p,
	char **argv_p, int tca_id, struct nlmsghdr n)
	{
	struct xtables_target *m = NULL;
	struct ipt_entry fw;
	struct rtattr *tail;
	int c;
	int rargc = *argc_p;
	char *argv = argv_p;
	int argc = 0, iargc = 0;
	char k[16];
	int size = 0;
	int iok = 0, ok = 0;
	__u32 hook = 0, index = 0;

	set_lib_dir();

	{
	int i;
	for (i = 0; i < rargc; i++) {
	if (NULL == argv[i] \|\| 0 == strcmp(argv[i], "action")) {
	break;
	}
	}
	iargc = argc = i;
	}

	if (argc <= 2) {
	fprintf(stderr,"bad arguments to ipt %d vs %d \n", argc, rargc);
	return -1;
	}

	while (1) {
	c = getopt_long(argc, argv, "j:", opts, NULL);
	if (c == -1)
	break;
	switch (c) {
	case 'j':
	m = find_target(optarg, TRY_LOAD);
	if (NULL != m) {

	if (0 > build_st(m, NULL)) {
	printf(" %s error \n", m->name);
	return -1;
	}
	opts =
	merge_options(opts, m->extra_opts,
	&m->option_offset);
	} else {
	fprintf(stderr," failed to find target %s\n\n", optarg);
	return -1;
	}
	ok++;
	break;

	default:
	memset(&fw, 0, sizeof (fw));
	if (m) {
	m->parse(c - m->option_offset, argv, 0,
	&m->tflags, NULL, &m->t);
	} else {
	fprintf(stderr," failed to find target %s\n\n", optarg);
	return -1;

	}
	ok++;
	break;

	}
	}

	if (iargc > optind) {
	if (matches(argv[optind], "index") == 0) {
	if (get_u32(&index, argv[optind + 1], 10)) {
	fprintf(stderr, "Illegal \"index\"\n");
	free_opts(opts);
	return -1;
	}
	iok++;

	optind += 2;
	}
	}

	if (!ok && !iok) {
	fprintf(stderr," ipt Parser BAD!! (%s)\n", *argv);
	return -1;
	}

	/* check that we passed the correct parameters to the target */
	if (m)
	m->final_check(m->tflags);

	{
	struct tcmsg *t = NLMSG_DATA(n);
	if (t->tcm_parent != TC_H_ROOT
	&& t->tcm_parent == TC_H_MAJ(TC_H_INGRESS)) {
	hook = NF_IP_PRE_ROUTING;
	} else {
	hook = NF_IP_POST_ROUTING;
	}
	}

	tail = NLMSG_TAIL(n);
	addattr_l(n, MAX_MSG, tca_id, NULL, 0);
	fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
	fprintf(stdout, "\ttarget: ");

	if (m)
	m->print(NULL, m->t, 0);
	fprintf(stdout, " index %d\n", index);

	if (strlen(tname) > 16) {
	size = 16;
	k[15] = 0;
	} else {
	size = 1 + strlen(tname);
	}
	strncpy(k, tname, size);

	addattr_l(n, MAX_MSG, TCA_IPT_TABLE, k, size);
	addattr_l(n, MAX_MSG, TCA_IPT_HOOK, &hook, 4);
	addattr_l(n, MAX_MSG, TCA_IPT_INDEX, &index, 4);
	if (m)
	addattr_l(n, MAX_MSG, TCA_IPT_TARG, m->t, m->t->u.target_size);
	tail->rta_len = (void ) NLMSG_TAIL(n) - (void ) tail;

	argc -= optind;
	argv += optind;
	*argc_p = rargc - iargc;
	*argv_p = argv;

	optind = 0;
	free_opts(opts);
	/* Clear flags if target will be used again */
	m->tflags=0;
	m->used=0;
	/* Free allocated memory */
	if (m->t)
	free(m->t);


	return 0;

	}

	static int
	print_ipt(struct action_util au,FILE f, struct rtattr *arg)
	{
	struct rtattr *tb[TCA_IPT_MAX + 1];
	struct xt_entry_target *t = NULL;

	if (arg == NULL)
	return -1;

	set_lib_dir();

	parse_rtattr_nested(tb, TCA_IPT_MAX, arg);

	if (tb[TCA_IPT_TABLE] == NULL) {
	fprintf(f, "[NULL ipt table name ] assuming mangle ");
	} else {
	fprintf(f, "tablename: %s ",
	rta_getattr_str(tb[TCA_IPT_TABLE]));
	}

	if (tb[TCA_IPT_HOOK] == NULL) {
	fprintf(f, "[NULL ipt hook name ]\n ");
	return -1;
	} else {
	__u32 hook;
	hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
	fprintf(f, " hook: %s \n", ipthooks[hook]);
	}

	if (tb[TCA_IPT_TARG] == NULL) {
	fprintf(f, "\t[NULL ipt target parameters ] \n");
	return -1;
	} else {
	struct xtables_target *m = NULL;
	t = RTA_DATA(tb[TCA_IPT_TARG]);
	m = find_target(t->u.user.name, TRY_LOAD);
	if (NULL != m) {
	if (0 > build_st(m, t)) {
	fprintf(stderr, " %s error \n", m->name);
	return -1;
	}

	opts =
	merge_options(opts, m->extra_opts,
	&m->option_offset);
	} else {
	fprintf(stderr, " failed to find target %s\n\n",
	t->u.user.name);
	return -1;
	}
	fprintf(f, "\ttarget ");
	m->print(NULL, m->t, 0);
	if (tb[TCA_IPT_INDEX] == NULL) {
	fprintf(f, " [NULL ipt target index ]\n");
	} else {
	__u32 index;
	index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
	fprintf(f, " \n\tindex %d", index);
	}

	if (tb[TCA_IPT_CNT]) {
	struct tc_cnt *c = RTA_DATA(tb[TCA_IPT_CNT]);;
	fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
	}
	if (show_stats) {
	if (tb[TCA_IPT_TM]) {
	struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
	print_tm(f,tm);
	}
	}
	fprintf(f, " \n");

	}
	free_opts(opts);

	return 0;
	}

	struct action_util ipt_action_util = {
	.id = "ipt",
	.parse_aopt = parse_ipt,
	.print_aopt = print_ipt,
	};