[mirror_iproute2.git] / tc / m_xt.c

/*
 * 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)
 */

#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <limits.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 <dlfcn.h>
#include <getopt.h>
#include <errno.h>
#include <string.h>
#include <netdb.h>
#include <stdlib.h>
#include <ctype.h>
#include <stdarg.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/wait.h>
#ifndef XT_LIB_DIR
#       define XT_LIB_DIR "/lib/xtables"
#endif

#ifndef __ALIGN_KERNEL
#define __ALIGN_KERNEL(x, a)	\
	__ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
#define __ALIGN_KERNEL_MASK(x, mask) \
	(((x) + (mask)) & ~(mask))
#endif

#ifndef ALIGN
#define ALIGN(x, a)	__ALIGN_KERNEL((x), (a))
#endif

static const char *tname = "mangle";

char *lib_dir;

static const char * const 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[] = {
	{
		.name = "jump",
		.has_arg = 1,
		.val = 'j'
	},
	{0, 0, 0, 0}
};

static struct xtables_globals tcipt_globals = {
	.option_offset = 0,
	.program_name = "tc-ipt",
	.program_version = "0.2",
	.orig_opts = original_opts,
	.opts = original_opts,
	.exit_err = NULL,
#if XTABLES_VERSION_CODE >= 11
	.compat_rev = xtables_compatible_revision,
#endif
};

/*
 * we may need to check for version mismatch
*/
static 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 (t == NULL) {
		target->t = xtables_calloc(1, size);
		target->t->u.target_size = size;
		strncpy(target->t->u.user.name, target->name,
			sizeof(target->t->u.user.name) - 1);
		target->t->u.user.revision = target->revision;

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

}

static 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 get_xtables_target_opts(struct xtables_globals *globals,
				   struct xtables_target *m)
{
	struct option *opts;

#if XTABLES_VERSION_CODE >= 6
	opts = xtables_options_xfrm(globals->orig_opts,
				    globals->opts,
				    m->x6_options,
				    &m->option_offset);
#else
	opts = xtables_merge_options(globals->opts,
				     m->extra_opts,
				     &m->option_offset);
#endif
	if (!opts)
		return -1;
	globals->opts = opts;
	return 0;
}

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;
#if XTABLES_VERSION_CODE >= 6
	struct ipt_entry fw = {};
#endif
	struct rtattr *tail;

	int c;
	char **argv = *argv_p;
	int argc;
	char k[FILTER_NAMESZ];
	int size = 0;
	int iok = 0, ok = 0;
	__u32 hook = 0, index = 0;

	/* copy tcipt_globals because .opts will be modified by iptables */
	struct xtables_globals tmp_tcipt_globals = tcipt_globals;

	xtables_init_all(&tmp_tcipt_globals, NFPROTO_IPV4);
	set_lib_dir();

	/* parse only up until the next action */
	for (argc = 0; argc < *argc_p; argc++) {
		if (!argv[argc] || !strcmp(argv[argc], "action"))
			break;
	}

	if (argc <= 2) {
		fprintf(stderr,
			"too few arguments for xt, need at least '-j <target>'\n");
		return -1;
	}

	while (1) {
		c = getopt_long(argc, argv, "j:", tmp_tcipt_globals.opts, NULL);
		if (c == -1)
			break;
		switch (c) {
		case 'j':
			m = xtables_find_target(optarg, XTF_TRY_LOAD);
			if (!m) {
				fprintf(stderr,
					" failed to find target %s\n\n",
					optarg);
				return -1;
			}

			if (build_st(m, NULL) < 0) {
				printf(" %s error\n", m->name);
				return -1;
			}

			if (get_xtables_target_opts(&tmp_tcipt_globals,
						    m) < 0) {
				fprintf(stderr,
					" failed to find additional options for target %s\n\n",
					optarg);
				return -1;
			}
			ok++;
			break;

		default:
#if XTABLES_VERSION_CODE >= 6
			if (m != NULL && m->x6_parse != NULL) {
				xtables_option_tpcall(c, argv, 0, m, &fw);
#else
			if (m != NULL && m->parse != NULL) {
				m->parse(c - m->option_offset, argv, 0,
					 &m->tflags, NULL, &m->t);
#endif
			} else {
				fprintf(stderr,
					"failed to find target %s\n\n", optarg);
				return -1;

			}
			ok++;
			break;
		}
	}

	if (argc > optind) {
		if (matches(argv[optind], "index") == 0) {
			if (get_u32(&index, argv[optind + 1], 10)) {
				fprintf(stderr, "Illegal \"index\"\n");
				xtables_free_opts(1);
				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 XTABLES_VERSION_CODE >= 6
	if (m)
		xtables_option_tfcall(m);
#else
	if (m && m->final_check)
		m->final_check(m->tflags);
#endif

	{
		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 = addattr_nest(n, MAX_MSG, tca_id);
	fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
	fprintf(stdout, "\ttarget: ");

	if (m) {
		if (m->print)
			m->print(NULL, m->t, 0);
		else
			printf("%s ", m->name);
	}
	fprintf(stdout, " index %d\n", index);

	if (strlen(tname) >= 16) {
		size = 15;
		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);
	addattr_nest_end(n, tail);

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

	optind = 0;
	xtables_free_opts(1);

	if (m) {
		/* 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 xtables_target *m;
	struct rtattr *tb[TCA_IPT_MAX + 1];
	struct xt_entry_target *t = NULL;
	__u32 hook;

	if (arg == NULL)
		return -1;

	/* copy tcipt_globals because .opts will be modified by iptables */
	struct xtables_globals tmp_tcipt_globals = tcipt_globals;

	xtables_init_all(&tmp_tcipt_globals, NFPROTO_IPV4);
	set_lib_dir();

	parse_rtattr_nested(tb, TCA_IPT_MAX, arg);

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

	if (tb[TCA_IPT_HOOK] == NULL) {
		fprintf(stderr, "Missing ipt hook name\n ");
		return -1;
	}

	if (tb[TCA_IPT_TARG] == NULL) {
		fprintf(stderr, "Missing ipt target parameters\n");
		return -1;
	}

	hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
	fprintf(f, " hook: %s\n", ipthooks[hook]);

	t = RTA_DATA(tb[TCA_IPT_TARG]);
	m = xtables_find_target(t->u.user.name, XTF_TRY_LOAD);
	if (!m) {
		fprintf(stderr, " failed to find target %s\n\n",
			t->u.user.name);
		return -1;
	}
	if (build_st(m, t) < 0) {
		fprintf(stderr, " %s error\n", m->name);
		return -1;
	}

	if (get_xtables_target_opts(&tmp_tcipt_globals, m) < 0) {
		fprintf(stderr,
			" failed to find additional options for 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 %u", 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);
		}
	}
	print_nl();

	xtables_free_opts(1);

	return 0;
}

struct action_util xt_action_util = {
	.id = "xt",
	.parse_aopt = parse_ipt,
	.print_aopt = print_ipt,
};
Commit	Line	Data
a36ceb85 AH	1	/*
a36ceb85 AH	2	* m_xt.c xtables based targets
3d0b7439	3	* utilities mostly ripped from iptables <duh, its the linux way>
a36ceb85 AH	4	*
	5	* This program is free software; you can distribute it and/or
	6	* modify it under the terms of the GNU General Public License
	7	* as published by the Free Software Foundation; either version
	8	* 2 of the License, or (at your option) any later version.
	9	*
	10	* Authors: J Hadi Salim (hadi@cyberus.ca)
	11	*/
	12
a36ceb85 AH	13	#include <sys/socket.h>
	14	#include <netinet/in.h>
	15	#include <arpa/inet.h>
	16	#include <net/if.h>
	17	#include <limits.h>
	18	#include <linux/netfilter.h>
	19	#include <linux/netfilter_ipv4/ip_tables.h>
	20	#include <xtables.h>
	21	#include "utils.h"
	22	#include "tc_util.h"
	23	#include <linux/tc_act/tc_ipt.h>
	24	#include <stdio.h>
	25	#include <dlfcn.h>
	26	#include <getopt.h>
	27	#include <errno.h>
	28	#include <string.h>
	29	#include <netdb.h>
	30	#include <stdlib.h>
	31	#include <ctype.h>
	32	#include <stdarg.h>
a36ceb85 AH	33	#include <unistd.h>
	34	#include <fcntl.h>
	35	#include <sys/wait.h>
	36	#ifndef XT_LIB_DIR
	37	# define XT_LIB_DIR "/lib/xtables"
	38	#endif
	39
cfa292de	40	#ifndef __ALIGN_KERNEL
4b83a08c SH	41	#define __ALIGN_KERNEL(x, a) \
	42	__ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
	43	#define __ALIGN_KERNEL_MASK(x, mask) \
	44	(((x) + (mask)) & ~(mask))
cfa292de AD	45	#endif
cfa292de AD	46
609ceb80	47	#ifndef ALIGN
32a121cb	48	#define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
609ceb80 SH	49	#endif
609ceb80 SH	50
a36ceb85 AH	51	static const char *tname = "mangle";
	52
	53	char *lib_dir;
	54
4b83a08c	55	static const char * const ipthooks[] = {
a36ceb85 AH	56	"NF_IP_PRE_ROUTING",
	57	"NF_IP_LOCAL_IN",
	58	"NF_IP_FORWARD",
	59	"NF_IP_LOCAL_OUT",
	60	"NF_IP_POST_ROUTING",
	61	};
	62
	63	static struct option original_opts[] = {
	64	{
	65	.name = "jump",
	66	.has_arg = 1,
	67	.val = 'j'
	68	},
	69	{0, 0, 0, 0}
	70	};
	71
	72	static struct xtables_globals tcipt_globals = {
	73	.option_offset = 0,
	74	.program_name = "tc-ipt",
	75	.program_version = "0.2",
	76	.orig_opts = original_opts,
	77	.opts = original_opts,
	78	.exit_err = NULL,
a05b9557	79	#if XTABLES_VERSION_CODE >= 11
97a02cab PS	80	.compat_rev = xtables_compatible_revision,
97a02cab PS	81	#endif
a36ceb85 AH	82	};
	83
	84	/*
	85	* we may need to check for version mismatch
	86	*/
d1f28cf1	87	static int
a36ceb85 AH	88	build_st(struct xtables_target target, struct xt_entry_target t)
	89	{
	90
	91	size_t size =
32a121cb	92	XT_ALIGN(sizeof(struct xt_entry_target)) + target->size;
a36ceb85	93
32a121cb	94	if (t == NULL) {
a36ceb85 AH	95	target->t = xtables_calloc(1, size);
a36ceb85 AH	96	target->t->u.target_size = size;
56270e54 PS	97	strncpy(target->t->u.user.name, target->name,
56270e54 PS	98	sizeof(target->t->u.user.name) - 1);
be3c4d4f	99	target->t->u.user.revision = target->revision;
a36ceb85 AH	100
	101	if (target->init != NULL)
	102	target->init(target->t);
	103	} else {
	104	target->t = t;
	105	}
	106	return 0;
	107
	108	}
	109
d1f28cf1	110	static void set_lib_dir(void)
a36ceb85 AH	111	{
	112
	113	lib_dir = getenv("XTABLES_LIBDIR");
	114	if (!lib_dir) {
	115	lib_dir = getenv("IPTABLES_LIB_DIR");
	116	if (lib_dir)
32a121cb	117	fprintf(stderr, "using deprecated IPTABLES_LIB_DIR\n");
a36ceb85 AH	118	}
	119	if (lib_dir == NULL)
	120	lib_dir = XT_LIB_DIR;
	121
	122	}
	123
2ef40085 PS	124	static int get_xtables_target_opts(struct xtables_globals *globals,
	125	struct xtables_target *m)
	126	{
	127	struct option *opts;
	128
a05b9557	129	#if XTABLES_VERSION_CODE >= 6
2ef40085 PS	130	opts = xtables_options_xfrm(globals->orig_opts,
	131	globals->opts,
	132	m->x6_options,
	133	&m->option_offset);
	134	#else
	135	opts = xtables_merge_options(globals->opts,
	136	m->extra_opts,
	137	&m->option_offset);
	138	#endif
	139	if (!opts)
	140	return -1;
	141	globals->opts = opts;
	142	return 0;
	143	}
	144
32a121cb	145	static int parse_ipt(struct action_util a, int argc_p,
a36ceb85 AH	146	char **argv_p, int tca_id, struct nlmsghdr n)
	147	{
	148	struct xtables_target *m = NULL;
f6fc1055 PS	149	#if XTABLES_VERSION_CODE >= 6
	150	struct ipt_entry fw = {};
	151	#endif
a36ceb85	152	struct rtattr *tail;
852d5122	153
a36ceb85	154	int c;
a36ceb85	155	char *argv = argv_p;
f6ddd9c5	156	int argc;
b317557f	157	char k[FILTER_NAMESZ];
a36ceb85 AH	158	int size = 0;
	159	int iok = 0, ok = 0;
	160	__u32 hook = 0, index = 0;
a36ceb85	161
8eee75a8 PS	162	/* copy tcipt_globals because .opts will be modified by iptables */
8eee75a8 PS	163	struct xtables_globals tmp_tcipt_globals = tcipt_globals;
4b83a08c	164
8eee75a8	165	xtables_init_all(&tmp_tcipt_globals, NFPROTO_IPV4);
a36ceb85 AH	166	set_lib_dir();
a36ceb85 AH	167
f6ddd9c5 PS	168	/* parse only up until the next action */
	169	for (argc = 0; argc < *argc_p; argc++) {
	170	if (!argv[argc] \|\| !strcmp(argv[argc], "action"))
	171	break;
a36ceb85 AH	172	}
	173
	174	if (argc <= 2) {
4b83a08c SH	175	fprintf(stderr,
4b83a08c SH	176	"too few arguments for xt, need at least '-j <target>'\n");
a36ceb85 AH	177	return -1;
	178	}
	179
	180	while (1) {
8eee75a8	181	c = getopt_long(argc, argv, "j:", tmp_tcipt_globals.opts, NULL);
a36ceb85 AH	182	if (c == -1)
	183	break;
	184	switch (c) {
	185	case 'j':
	186	m = xtables_find_target(optarg, XTF_TRY_LOAD);
f1a7c7d8	187	if (!m) {
4b83a08c SH	188	fprintf(stderr,
	189	" failed to find target %s\n\n",
	190	optarg);
f1a7c7d8 PS	191	return -1;
f1a7c7d8 PS	192	}
a36ceb85	193
f1a7c7d8 PS	194	if (build_st(m, NULL) < 0) {
	195	printf(" %s error\n", m->name);
	196	return -1;
	197	}
2ef40085	198
4b83a08c SH	199	if (get_xtables_target_opts(&tmp_tcipt_globals,
	200	m) < 0) {
	201	fprintf(stderr,
	202	" failed to find additional options for target %s\n\n",
	203	optarg);
852d5122	204	return -1;
2ef40085	205	}
a36ceb85 AH	206	ok++;
	207	break;
	208
	209	default:
a05b9557	210	#if XTABLES_VERSION_CODE >= 6
f1a7c7d8	211	if (m != NULL && m->x6_parse != NULL) {
f6fc1055	212	xtables_option_tpcall(c, argv, 0, m, &fw);
852d5122	213	#else
f1a7c7d8 PS	214	if (m != NULL && m->parse != NULL) {
f1a7c7d8 PS	215	m->parse(c - m->option_offset, argv, 0,
4b83a08c	216	&m->tflags, NULL, &m->t);
852d5122	217	#endif
a36ceb85	218	} else {
4b83a08c SH	219	fprintf(stderr,
4b83a08c SH	220	"failed to find target %s\n\n", optarg);
a36ceb85 AH	221	return -1;
	222
	223	}
	224	ok++;
	225	break;
a36ceb85 AH	226	}
	227	}
	228
28432f37	229	if (argc > optind) {
a36ceb85 AH	230	if (matches(argv[optind], "index") == 0) {
	231	if (get_u32(&index, argv[optind + 1], 10)) {
	232	fprintf(stderr, "Illegal \"index\"\n");
	233	xtables_free_opts(1);
	234	return -1;
	235	}
	236	iok++;
	237
	238	optind += 2;
	239	}
	240	}
	241
	242	if (!ok && !iok) {
32a121cb	243	fprintf(stderr, " ipt Parser BAD!! (%s)\n", *argv);
a36ceb85 AH	244	return -1;
	245	}
	246
	247	/* check that we passed the correct parameters to the target */
a05b9557	248	#if XTABLES_VERSION_CODE >= 6
852d5122 JHS	249	if (m)
	250	xtables_option_tfcall(m);
	251	#else
a36ceb85 AH	252	if (m && m->final_check)
a36ceb85 AH	253	m->final_check(m->tflags);
852d5122	254	#endif
a36ceb85 AH	255
	256	{
	257	struct tcmsg *t = NLMSG_DATA(n);
32a121cb	258
a36ceb85 AH	259	if (t->tcm_parent != TC_H_ROOT
	260	&& t->tcm_parent == TC_H_MAJ(TC_H_INGRESS)) {
	261	hook = NF_IP_PRE_ROUTING;
	262	} else {
	263	hook = NF_IP_POST_ROUTING;
	264	}
	265	}
	266
c14f9d92	267	tail = addattr_nest(n, MAX_MSG, tca_id);
a36ceb85 AH	268	fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
	269	fprintf(stdout, "\ttarget: ");
	270
44574522 PS	271	if (m) {
	272	if (m->print)
	273	m->print(NULL, m->t, 0);
	274	else
	275	printf("%s ", m->name);
	276	}
a36ceb85 AH	277	fprintf(stdout, " index %d\n", index);
a36ceb85 AH	278
56270e54 PS	279	if (strlen(tname) >= 16) {
56270e54 PS	280	size = 15;
a36ceb85 AH	281	k[15] = 0;
	282	} else {
	283	size = 1 + strlen(tname);
	284	}
	285	strncpy(k, tname, size);
	286
	287	addattr_l(n, MAX_MSG, TCA_IPT_TABLE, k, size);
	288	addattr_l(n, MAX_MSG, TCA_IPT_HOOK, &hook, 4);
	289	addattr_l(n, MAX_MSG, TCA_IPT_INDEX, &index, 4);
	290	if (m)
	291	addattr_l(n, MAX_MSG, TCA_IPT_TARG, m->t, m->t->u.target_size);
c14f9d92	292	addattr_nest_end(n, tail);
a36ceb85	293
a36ceb85	294	argv += optind;
28432f37	295	*argc_p -= argc;
a36ceb85 AH	296	*argv_p = argv;
	297
	298	optind = 0;
	299	xtables_free_opts(1);
a36ceb85	300
4f3626f9 DM	301	if (m) {
	302	/* Clear flags if target will be used again */
	303	m->tflags = 0;
	304	m->used = 0;
	305	/* Free allocated memory */
	306	if (m->t)
	307	free(m->t);
	308	}
a36ceb85 AH	309
	310	return 0;
	311
	312	}
	313
	314	static int
4b83a08c	315	print_ipt(struct action_util au, FILE f, struct rtattr *arg)
a36ceb85	316	{
b45f9141	317	struct xtables_target *m;
a36ceb85 AH	318	struct rtattr *tb[TCA_IPT_MAX + 1];
a36ceb85 AH	319	struct xt_entry_target *t = NULL;
d5ddb441	320	__u32 hook;
a36ceb85 AH	321
	322	if (arg == NULL)
	323	return -1;
	324
6e2e5ec2 AG	325	/* copy tcipt_globals because .opts will be modified by iptables */
	326	struct xtables_globals tmp_tcipt_globals = tcipt_globals;
	327
	328	xtables_init_all(&tmp_tcipt_globals, NFPROTO_IPV4);
a36ceb85 AH	329	set_lib_dir();
	330
	331	parse_rtattr_nested(tb, TCA_IPT_MAX, arg);
	332
	333	if (tb[TCA_IPT_TABLE] == NULL) {
d5ddb441	334	fprintf(stderr, "Missing ipt table name, assuming mangle\n");
a36ceb85 AH	335	} else {
a36ceb85 AH	336	fprintf(f, "tablename: %s ",
ff24746c	337	rta_getattr_str(tb[TCA_IPT_TABLE]));
a36ceb85 AH	338	}
	339
	340	if (tb[TCA_IPT_HOOK] == NULL) {
d5ddb441	341	fprintf(stderr, "Missing ipt hook name\n ");
a36ceb85	342	return -1;
a36ceb85 AH	343	}
	344
	345	if (tb[TCA_IPT_TARG] == NULL) {
d5ddb441	346	fprintf(stderr, "Missing ipt target parameters\n");
a36ceb85	347	return -1;
b45f9141 PS	348	}
b45f9141 PS	349
d5ddb441 SH	350	hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
	351	fprintf(f, " hook: %s\n", ipthooks[hook]);
	352
b45f9141 PS	353	t = RTA_DATA(tb[TCA_IPT_TARG]);
	354	m = xtables_find_target(t->u.user.name, XTF_TRY_LOAD);
	355	if (!m) {
	356	fprintf(stderr, " failed to find target %s\n\n",
	357	t->u.user.name);
	358	return -1;
	359	}
	360	if (build_st(m, t) < 0) {
	361	fprintf(stderr, " %s error\n", m->name);
	362	return -1;
	363	}
a36ceb85	364
2ef40085 PS	365	if (get_xtables_target_opts(&tmp_tcipt_globals, m) < 0) {
2ef40085 PS	366	fprintf(stderr,
4b83a08c	367	" failed to find additional options for target %s\n\n",
2ef40085	368	t->u.user.name);
b45f9141	369	return -1;
2ef40085	370	}
b45f9141 PS	371	fprintf(f, "\ttarget ");
	372	m->print(NULL, m->t, 0);
	373	if (tb[TCA_IPT_INDEX] == NULL) {
	374	fprintf(f, " [NULL ipt target index ]\n");
	375	} else {
	376	__u32 index;
32a121cb	377
b45f9141	378	index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
53075318	379	fprintf(f, "\n\tindex %u", index);
b45f9141	380	}
a36ceb85	381
b45f9141 PS	382	if (tb[TCA_IPT_CNT]) {
b45f9141 PS	383	struct tc_cnt *c = RTA_DATA(tb[TCA_IPT_CNT]);
32a121cb	384
b45f9141 PS	385	fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
	386	}
	387	if (show_stats) {
	388	if (tb[TCA_IPT_TM]) {
	389	struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
32a121cb	390
b45f9141	391	print_tm(f, tm);
a36ceb85	392	}
a36ceb85	393	}
7b0d424a	394	print_nl();
b45f9141	395
a36ceb85 AH	396	xtables_free_opts(1);
	397
	398	return 0;
	399	}
	400
8e91a80d	401	struct action_util xt_action_util = {
32a121cb SH	402	.id = "xt",
	403	.parse_aopt = parse_ipt,
	404	.print_aopt = print_ipt,
a36ceb85	405	};