[mirror_iproute2.git] / ip / ipxfrm.c

/* $USAGI: $ */

/*
 * Copyright (C)2004 USAGI/WIDE Project
 * 
 * This program is free software; you can redistribute 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.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/*
 * based on ip.c, iproute.c
 */
/*
 * Authors:
 *	Masahide NAKAMURA @USAGI
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <time.h>
#include <netdb.h>
#include <net/if.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/xfrm.h>

#include "utils.h"
#include "xfrm.h"

struct xfrm_filter filter;

static void usage(void) __attribute__((noreturn));

static void usage(void)
{
	fprintf(stderr, 
		"Usage: ip xfrm XFRM_OBJECT { COMMAND | help }\n"
		"where  XFRM_OBJECT := { state | policy }\n");
	exit(-1);
}

const char *strxf_flags(__u8 flags)
{
	static char str[16];
	const int sn = sizeof(flags) * 8 - 1;
	__u8 b;
	int i = 0;

	for (b = (1 << sn); b > 0; b >>= 1)
		str[i++] = ((b & flags) ? '1' : '0');
	str[i] = '\0';

	return str;
}

const char *strxf_share(__u8 share)
{
	static char str[32];

	switch (share) {
	case XFRM_SHARE_ANY:
		strcpy(str, "any");
		break;
	case XFRM_SHARE_SESSION:
		strcpy(str, "session");
		break;
	case XFRM_SHARE_USER:
		strcpy(str, "user");
		break;
	case XFRM_SHARE_UNIQUE:
		strcpy(str, "unique");
		break;
	default:
		sprintf(str, "unknown-share(%d)", share);
		break;
	}

	return str;
}

const char *strxf_proto(__u8 proto)
{
	static char buf[32];
	struct protoent *pp;
	const char *p;

	pp = getprotobynumber(proto);
	if (pp)
		p = pp->p_name;
	else {
		sprintf(buf, "%d", proto);
		p = buf;
	}

	return p;
}

void xfrm_id_info_print(xfrm_address_t *saddr, struct xfrm_id *id,
			__u8 mode, __u32 reqid, __u16 family, FILE *fp,
			const char *prefix)
{
	char abuf[256];
	__u32 spi;
	struct protoent *pp;
	char pbuf[32];
	char *p;

	if (prefix)
		fprintf(fp, prefix);

	memset(abuf, '\0', sizeof(abuf));
	fprintf(fp, "src %s ", rt_addr_n2a(family, sizeof(*saddr),
					   saddr, abuf, sizeof(abuf)));
	memset(abuf, '\0', sizeof(abuf));
	fprintf(fp, "dst %s\n", rt_addr_n2a(family, sizeof(id->daddr),
					    &id->daddr, abuf, sizeof(abuf)));

	if (prefix)
		fprintf(fp, prefix);
	fprintf(fp, "\t");

	pp = getprotobynumber(id->proto);
	if (pp)
		p = pp->p_name;
	else {
		sprintf(pbuf, "%d", id->proto);
		p = pbuf;
	}
	fprintf(fp, "proto %s ", p);

	spi = ntohl(id->spi);
	fprintf(fp, "spi %u", spi);
	if (show_stats > 0)
		fprintf(fp, "(0x%08x)", spi);
	fprintf(fp, " ");

	fprintf(fp, "reqid %u", reqid);
	if (show_stats > 0)
		fprintf(fp, "(0x%08x)", reqid);
	fprintf(fp, " ");

	fprintf(fp, "mode %s\n", (mode ? "tunnel" : "transport"));
}

static const char *strxf_limit(__u64 limit)
{
	static char str[32];
	if (limit == XFRM_INF)
		strcpy(str, "(INF)");
	else
		sprintf(str, "%llu", limit);

	return str;
}

void xfrm_stats_print(struct xfrm_stats *s, FILE *fp, const char *prefix)
{
	if (prefix)
		fprintf(fp, prefix);
	fprintf(fp, "stats:\n");

	if (prefix)
		fprintf(fp, prefix);
	fprintf(fp, "  ");
	fprintf(fp, "replay-window %d ", s->replay_window);
	fprintf(fp, "replay %d ", s->replay);
	fprintf(fp, "failed %d", s->integrity_failed);
	fprintf(fp, "\n");
}

static const char *strxf_time(__u64 time)
{
	static char str[32];
	struct tm *tp;
	time_t t;

	if (time == 0) {
		strcpy(str, "(undefined)");
	} else {
		/* XXX: treat time in the same manner of xfrm_{user,state}.c */
		t = (long)time;
		tp = localtime(&t);

		sprintf(str, "%04d/%02d/%02d %02d:%02d:%02d",
			tp->tm_year + 1900, tp->tm_mon + 1, tp->tm_mday,
			tp->tm_hour, tp->tm_min, tp->tm_sec);
	}

	return str;
}

void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg,
			 struct xfrm_lifetime_cur *cur,
			 FILE *fp, const char *prefix)
{
	if (cfg) {
		if (prefix)
			fprintf(fp, prefix);
		fprintf(fp, "lifetime config:\n");

		if (prefix)
			fprintf(fp, prefix);
		fprintf(fp, "  ");
		fprintf(fp, "limit: ");
		fprintf(fp, "soft ");
		fprintf(fp, strxf_limit(cfg->soft_byte_limit));
		fprintf(fp, "(bytes), hard ");
		fprintf(fp, strxf_limit(cfg->hard_byte_limit));
		fprintf(fp, "(bytes)\n");

		if (prefix)
			fprintf(fp, prefix);
		fprintf(fp, "  ");
		fprintf(fp, "limit: ");
		fprintf(fp, "soft ");
		fprintf(fp, strxf_limit(cfg->soft_packet_limit));
		fprintf(fp, "(packets), hard ");
		fprintf(fp, strxf_limit(cfg->hard_packet_limit));
		fprintf(fp, "(packets)\n");

		if (prefix)
			fprintf(fp, prefix);
		fprintf(fp, "  ");
		fprintf(fp, "expire add: ");
		fprintf(fp, "soft ");
		fprintf(fp, "%llu", cfg->soft_add_expires_seconds);
		fprintf(fp, "(sec), hard ");
		fprintf(fp, "%llu", cfg->hard_add_expires_seconds);
		fprintf(fp, "(sec)\n");

		if (prefix)
			fprintf(fp, prefix);
		fprintf(fp, "  ");
		fprintf(fp, "expire use: ");
		fprintf(fp, "soft ");
		fprintf(fp, "%llu", cfg->soft_use_expires_seconds);
		fprintf(fp, "(sec), hard ");
		fprintf(fp, "%llu", cfg->hard_use_expires_seconds);
		fprintf(fp, "(sec)\n");
	}
	if (cur) {
		if (prefix)
			fprintf(fp, prefix);
		fprintf(fp, "lifetime current:\n");

		if (prefix)
			fprintf(fp, prefix);
		fprintf(fp, "  ");
		fprintf(fp, "%llu(bytes), ", cur->bytes);
		fprintf(fp, "%llu(packets)\n", cur->packets);
		if (prefix)
			fprintf(fp, prefix);
		fprintf(fp, "  ");
		fprintf(fp, "add %s ", strxf_time(cur->add_time));
		fprintf(fp, "use %s", strxf_time(cur->use_time));
		fprintf(fp, "\n");
	}
}

void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
			 FILE *fp, const char *prefix)
{
	char abuf[256];
	__u16 f;

	f = sel->family;
	if (f == AF_UNSPEC)
		f = family;
	if (f == AF_UNSPEC)
		f = preferred_family;

	if (prefix)
		fprintf(fp, prefix);

	memset(abuf, '\0', sizeof(abuf));
	fprintf(fp, "src %s/%d ", rt_addr_n2a(f, sizeof(sel->saddr),
					      &sel->saddr, abuf, sizeof(abuf)),
		sel->prefixlen_s);

	memset(abuf, '\0', sizeof(abuf));
	fprintf(fp, "dst %s/%d", rt_addr_n2a(f, sizeof(sel->daddr),
					      &sel->daddr, abuf, sizeof(abuf)),
		sel->prefixlen_d);

	fprintf(fp, "\n");

	if (prefix)
		fprintf(fp, prefix);
	fprintf(fp, "\t");

	fprintf(fp, "upspec proto %u ", sel->proto);
	fprintf(fp, "sport %u dport %u ", sel->sport, sel->dport);

	if (sel->ifindex > 0) {
		char buf[IF_NAMESIZE];

		memset(buf, '\0', sizeof(buf));
		if_indextoname(sel->ifindex, buf);
		fprintf(fp, "dev %s ", buf);
	}

	if (show_stats > 0)
		fprintf(fp, "uid %u", sel->user);
	fprintf(fp, "\n");
}

static void xfrm_algo_print(struct xfrm_algo *algo, FILE *fp,
			    const char *prefix)
{
	int len;
	int i;

	if (prefix)
		fprintf(fp, prefix);

	fprintf(fp, "%s", algo->alg_name);

	len = algo->alg_key_len / 8;
	for (i = 0; i < len; i ++) {
		if (i % 4 == 0)
			fprintf(fp, " ");
		fprintf(fp, "%x", algo->alg_key[i]);
	}

	fprintf(fp, "\n");
}

static const char *strxf_mask(__u32 mask)
{
	static char str[128];
	const int sn = 	sizeof(mask) * 8 - 1;
	__u32 b;
	int finish = 0;
	int broken = 0;
	int i = 0;

	for (b = (1 << sn); b > 0; b >>= 1) {
		if ((b & mask) == 0) {
			if (!finish)
				finish = 1;
		} else {
			if (!finish)
				i ++;
			else {
				broken = 1;
				break;
			}
		}
	}

	if (!broken)
		sprintf(str, "%u", i);
	else
		sprintf(str, "broken(%u)", mask);

	return str;
}

static void xfrm_tmpl_print(struct xfrm_user_tmpl *tmpls, int ntmpls,
			    __u16 family, FILE *fp, const char *prefix)
{
	int i;

	for (i = 0; i < ntmpls; i++) {
		struct xfrm_user_tmpl *tmpl = &tmpls[i];

		if (prefix)
			fprintf(fp, prefix);

		fprintf(fp, "tmpl");
		xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode,
				   tmpl->reqid, family, fp, prefix);

		fprintf(fp, prefix);
		fprintf(fp, "\t");
		fprintf(fp, "level ");
		switch (tmpl->optional) {
		case 0:
			fprintf(fp, "required");
			break;
		case 1:
			fprintf(fp, "use");
			break;
		default:
			fprintf(fp, "%d", tmpl->optional);
			break;
		}
		fprintf(fp, " ");

		if (show_stats > 0) {
			fprintf(fp, "share %s ", strxf_share(tmpl->share));
			fprintf(fp, "algo-mask:");
			fprintf(fp, "E=%s, ", strxf_mask(tmpl->ealgos));
			fprintf(fp, "A=%s, ", strxf_mask(tmpl->aalgos));
			fprintf(fp, "C=%s", strxf_mask(tmpl->calgos));
		}
		fprintf(fp, "\n");
	}
}

void xfrm_xfrma_print(struct rtattr *tb[], int ntb, __u16 family,
		      FILE *fp, const char *prefix)
{
	int i;

	for (i = 0; i < ntb; i++) {
		__u16 type = tb[i]->rta_type;
		void *data = RTA_DATA(tb[i]);

		switch (type) {
		case XFRMA_ALG_CRYPT:
			if (prefix)
				fprintf(fp, prefix);
			xfrm_algo_print((struct xfrm_algo *)data, fp, "algo E ");
			break;
		case XFRMA_ALG_AUTH:
			if (prefix)
				fprintf(fp, prefix);
			xfrm_algo_print((struct xfrm_algo *)data, fp, "algo A ");
			break;
		case XFRMA_ALG_COMP:
			if (prefix)
				fprintf(fp, prefix);
			xfrm_algo_print((struct xfrm_algo *)data, fp, "algo C ");
			break;
		case XFRMA_ENCAP:
			if (prefix)
				fprintf(fp, prefix);
			/* XXX */
			fprintf(fp, "encap: (not implemented yet!)\n");
			break;
		case XFRMA_TMPL:
		{
			int len = tb[i]->rta_len;
			int ntmpls = len / sizeof(struct xfrm_user_tmpl);

			xfrm_tmpl_print((struct xfrm_user_tmpl *)data,
					ntmpls, family, fp, prefix);
			break;
		}
		default:
			if (prefix)
				fprintf(fp, prefix);
			fprintf(fp, "unknown rta_type: %u\n", type);
			break;
		}
	}
}

int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
		  int *argcp, char ***argvp)
{
	int argc = *argcp;
	char **argv = *argvp;
	inet_prefix dst;
	inet_prefix src;
	__u8 proto = 0;

	memset(&dst, 0, sizeof(dst));
	memset(&src, 0, sizeof(src));

	while (1) {
		if (strcmp(*argv, "src") == 0) {
			NEXT_ARG();

			get_prefix(&src, *argv, preferred_family);
			if (src.family == AF_UNSPEC)
				invarg("\"SADDR\" address family is AF_UNSPEC", *argv);
			if (family)
				*family = src.family;

			memcpy(saddr, &src.data, sizeof(*saddr));

			filter.id_src_mask = src.bitlen;

		} else if (strcmp(*argv, "dst") == 0) {
			NEXT_ARG();

			get_prefix(&dst, *argv, preferred_family);
			if (dst.family == AF_UNSPEC)
				invarg("\"DADDR\" address family is AF_UNSPEC", *argv);
			if (family)
				*family = dst.family;

			memcpy(&id->daddr, &dst.data, sizeof(id->daddr));

			filter.id_dst_mask = dst.bitlen;

		} else if (strcmp(*argv, "proto") == 0) {
			struct protoent *pp;

			NEXT_ARG();

			pp = getprotobyname(*argv);
			if (pp)
				proto = pp->p_proto;
			else {
				if (get_u8(&proto, *argv, 0))
					invarg("\"PROTO\" is invalid", *argv);
			}

			switch (proto) {
			case IPPROTO_ESP:
			case IPPROTO_AH:
			case IPPROTO_COMP:
				id->proto = proto;
				break;
			default:
				invarg("\"PROTO\" is unsuppored proto", *argv);
			}

			filter.id_proto_mask = XFRM_FILTER_MASK_FULL;

		} else if (strcmp(*argv, "spi") == 0) {
			__u32 spi;

			NEXT_ARG();
			if (get_u32(&spi, *argv, 0))
				invarg("\"SPI\" is invalid", *argv);

			spi = htonl(spi);
			id->spi = spi;

			filter.id_spi_mask = XFRM_FILTER_MASK_FULL;

		} else {
			PREV_ARG(); /* back track */
			break;
		}

		if (!NEXT_ARG_OK())
			break;
		NEXT_ARG();
	}

	if (src.family && dst.family && (src.family != dst.family))
		invarg("the same address family is required between \"SADDR\" and \"DADDR\"", *argv);
	if (proto == 0)
		missarg("PROTO");

	if (argc == *argcp)
		missarg("ID");

	*argcp = argc;
	*argvp = argv;

	return 0;
}

int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp)
{
	int argc = *argcp;
	char **argv = *argvp;

	if (matches(*argv, "transport") == 0)
		*mode = 0;
	else if (matches(*argv, "tunnel") == 0)
		*mode = 1;
	else
		invarg("\"MODE\" is invalid", *argv);

	*argcp = argc;
	*argvp = argv;

	return 0;
}

/* NOTE: reqid is used by host-byte order */
int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp)
{
	int argc = *argcp;
	char **argv = *argvp;

	if (get_u32(reqid, *argv, 0))
		invarg("\"REQID\" is invalid", *argv);

	*argcp = argc;
	*argvp = argv;

	return 0;
}

static int xfrm_selector_upspec_parse(struct xfrm_selector *sel,
				      int *argcp, char ***argvp)
{
	int argc = *argcp;
	char **argv = *argvp;
	__u8 upspec;

	while (1) {
		if (strcmp(*argv, "proto") == 0) {
			NEXT_ARG();

			if (strcmp(*argv, "any") == 0)
				upspec = 0;
			else {
				struct protoent *pp;
				pp = getprotobyname(*argv);
				if (pp)
					upspec = pp->p_proto;
				else {
					if (get_u8(&upspec, *argv, 0))
						invarg("\"UPSPEC\" is invalid", *argv);
				}
			}
			sel->proto = upspec;

			filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL;

		} else if (strcmp(*argv, "sport") == 0) {
			NEXT_ARG();

			if (get_u16(&sel->sport, *argv, 0))
				invarg("\"PORT\" is invalid", *argv);
			sel->sport = htons(sel->sport);
			if (sel->sport)
				sel->sport_mask = ~((__u16)0);

			filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;

		} else if (strcmp(*argv, "dport") == 0) {
			NEXT_ARG();

			if (get_u16(&sel->dport, *argv, 0))
				invarg("\"PORT\" is invalid", *argv);
			sel->dport = htons(sel->dport);
			if (sel->dport)
				sel->dport_mask = ~((__u16)0);

			filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;

		} else {
			PREV_ARG(); /* back track */
			break;
		}

		if (!NEXT_ARG_OK())
			break;
		NEXT_ARG();
	}
	if (argc == *argcp)
		missarg("UPSPEC");

	*argcp = argc;
	*argvp = argv;

	return 0;
}

int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp)
{
	int argc = *argcp;
	char **argv = *argvp;
	inet_prefix dst;
	inet_prefix src;

	memset(&dst, 0, sizeof(dst));
	memset(&src, 0, sizeof(src));

	while (1) {
		if (strcmp(*argv, "src") == 0) {
			NEXT_ARG();

			get_prefix(&src, *argv, preferred_family);
			if (src.family == AF_UNSPEC)
				invarg("\"SADDR\" address family is AF_UNSPEC", *argv);
			sel->family = src.family;

			memcpy(&sel->saddr, &src.data, sizeof(sel->saddr));
			sel->prefixlen_s = src.bitlen;

			filter.sel_src_mask = src.bitlen;

		} else if (strcmp(*argv, "dst") == 0) {
			NEXT_ARG();

			get_prefix(&dst, *argv, preferred_family);
			if (dst.family == AF_UNSPEC)
				invarg("\"DADDR\" address family is AF_UNSPEC", *argv);
			sel->family = dst.family;

			memcpy(&sel->daddr, &dst.data, sizeof(sel->daddr));
			sel->prefixlen_d = dst.bitlen;

			filter.sel_dst_mask = dst.bitlen;

		} else if (strcmp(*argv, "upspec") == 0) {
			NEXT_ARG();

			xfrm_selector_upspec_parse(sel, &argc, &argv);

		} else if (strcmp(*argv, "dev") == 0) {
			int ifindex;

			NEXT_ARG();

			if (strcmp(*argv, "none") == 0)
				ifindex = 0;
			else {
				ifindex = if_nametoindex(*argv);
				if (ifindex <= 0)
					invarg("\"DEV\" is invalid", *argv);
			}
			sel->ifindex = ifindex;

			filter.sel_dev_mask = XFRM_FILTER_MASK_FULL;

		} else {
			PREV_ARG(); /* back track */
			break;
		}

		if (!NEXT_ARG_OK())
			break;

		NEXT_ARG();
	}

	if (src.family && dst.family && (src.family != dst.family))
		invarg("the same address family is required between \"SADDR\" and \"DADDR\"", *argv);

	if (argc == *argcp)
		missarg("SELECTOR");

	*argcp = argc;
	*argvp = argv;

	return 0;
}

int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
			    int *argcp, char ***argvp)
{
	int argc = *argcp;
	char **argv = *argvp;
	int ret;

	if (strcmp(*argv, "time-soft") == 0) {
		NEXT_ARG();
		ret = get_u64(&lft->soft_add_expires_seconds, *argv, 0);
		if (ret)
			invarg("\"time-soft\" value is invalid", *argv);
	} else if (strcmp(*argv, "time-hard") == 0) {
		NEXT_ARG();
		ret = get_u64(&lft->hard_add_expires_seconds, *argv, 0);
		if (ret)
			invarg("\"time-hard\" value is invalid", *argv);
	} else if (strcmp(*argv, "time-use-soft") == 0) {
		NEXT_ARG();
		ret = get_u64(&lft->soft_use_expires_seconds, *argv, 0);
		if (ret)
			invarg("\"time-use-soft\" value is invalid", *argv);
	} else if (strcmp(*argv, "time-use-hard") == 0) {
		NEXT_ARG();
		ret = get_u64(&lft->hard_use_expires_seconds, *argv, 0);
		if (ret)
			invarg("\"time-use-hard\" value is invalid", *argv);
	} else if (strcmp(*argv, "byte-soft") == 0) {
		NEXT_ARG();
		ret = get_u64(&lft->soft_byte_limit, *argv, 0);
		if (ret)
			invarg("\"byte-soft\" value is invalid", *argv);
	} else if (strcmp(*argv, "byte-hard") == 0) {
		NEXT_ARG();
		ret = get_u64(&lft->hard_byte_limit, *argv, 0);
		if (ret)
			invarg("\"byte-hard\" value is invalid", *argv);
	} else if (strcmp(*argv, "packet-soft") == 0) {
		NEXT_ARG();
		ret = get_u64(&lft->soft_packet_limit, *argv, 0);
		if (ret)
			invarg("\"packet-soft\" value is invalid", *argv);
	} else if (strcmp(*argv, "packet-hard") == 0) {
		NEXT_ARG();
		ret = get_u64(&lft->hard_packet_limit, *argv, 0);
		if (ret)
			invarg("\"packet-hard\" value is invalid", *argv);
	} else
		invarg("\"LIMIT\" is invalid", *argv);

	*argcp = argc;
	*argvp = argv;

	return 0;
}

int do_xfrm(int argc, char **argv)
{
	memset(&filter, 0, sizeof(filter));

	if (argc < 1)
		usage();

	if (matches(*argv, "state") == 0 ||
	    matches(*argv, "sa") == 0) {
		return do_xfrm_state(argc-1, argv+1);
	} else if (matches(*argv, "policy") == 0)
		return do_xfrm_policy(argc-1, argv+1);
	else if (matches(*argv, "help") == 0) {
		usage();
		fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv);
		exit(-1);
	}
	usage();
}
Commit	Line	Data
c7699875	1	/* $USAGI: $ */
	2
	3	/*
	4	* Copyright (C)2004 USAGI/WIDE Project
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*/
	20	/*
	21	* based on ip.c, iproute.c
	22	*/
	23	/*
	24	* Authors:
	25	* Masahide NAKAMURA @USAGI
	26	*/
	27
	28	#include <stdio.h>
	29	#include <stdlib.h>
	30	#include <string.h>
	31	#include <sys/types.h>
	32	#include <sys/socket.h>
	33	#include <time.h>
	34	#include <netdb.h>
	35	#include <net/if.h>
	36	#include <linux/netlink.h>
	37	#include <linux/rtnetlink.h>
	38	#include <linux/xfrm.h>
	39
	40	#include "utils.h"
	41	#include "xfrm.h"
	42
	43	struct xfrm_filter filter;
	44
	45	static void usage(void) __attribute__((noreturn));
	46
	47	static void usage(void)
	48	{
	49	fprintf(stderr,
	50	"Usage: ip xfrm XFRM_OBJECT { COMMAND \| help }\n"
	51	"where XFRM_OBJECT := { state \| policy }\n");
	52	exit(-1);
	53	}
	54
	55	const char *strxf_flags(__u8 flags)
	56	{
	57	static char str[16];
	58	const int sn = sizeof(flags) * 8 - 1;
	59	__u8 b;
	60	int i = 0;
	61
	62	for (b = (1 << sn); b > 0; b >>= 1)
	63	str[i++] = ((b & flags) ? '1' : '0');
	64	str[i] = '\0';
65
66	return str;
67	}
68
69	const char *strxf_share(__u8 share)
70	{
71	static char str[32];
72
73	switch (share) {
74	case XFRM_SHARE_ANY:
75	strcpy(str, "any");
76	break;
77	case XFRM_SHARE_SESSION:
78	strcpy(str, "session");
79	break;
80	case XFRM_SHARE_USER:
81	strcpy(str, "user");
82	break;
83	case XFRM_SHARE_UNIQUE:
84	strcpy(str, "unique");
85	break;
86	default:
87	sprintf(str, "unknown-share(%d)", share);
88	break;
89	}
90
91	return str;
92	}
93
ad273962	94	const char *strxf_proto(__u8 proto)
	95	{
	96	static char buf[32];
	97	struct protoent *pp;
	98	const char *p;
	99
	100	pp = getprotobynumber(proto);
	101	if (pp)
	102	p = pp->p_name;
	103	else {
	104	sprintf(buf, "%d", proto);
	105	p = buf;
	106	}
	107
	108	return p;
	109	}
	110
c7699875	111	void xfrm_id_info_print(xfrm_address_t saddr, struct xfrm_id id,
	112	__u8 mode, __u32 reqid, __u16 family, FILE *fp,
	113	const char *prefix)
	114	{
	115	char abuf[256];
	116	__u32 spi;
	117	struct protoent *pp;
	118	char pbuf[32];
	119	char *p;
	120
	121	if (prefix)
	122	fprintf(fp, prefix);
	123
	124	memset(abuf, '\0', sizeof(abuf));
ad273962	125	fprintf(fp, "src %s ", rt_addr_n2a(family, sizeof(*saddr),
ad273962	126	saddr, abuf, sizeof(abuf)));
c7699875	127	memset(abuf, '\0', sizeof(abuf));
ad273962	128	fprintf(fp, "dst %s\n", rt_addr_n2a(family, sizeof(id->daddr),
ad273962	129	&id->daddr, abuf, sizeof(abuf)));
c7699875	130
	131	if (prefix)
	132	fprintf(fp, prefix);
	133	fprintf(fp, "\t");
	134
	135	pp = getprotobynumber(id->proto);
	136	if (pp)
	137	p = pp->p_name;
	138	else {
	139	sprintf(pbuf, "%d", id->proto);
	140	p = pbuf;
	141	}
ad273962	142	fprintf(fp, "proto %s ", p);
c7699875	143
ad273962	144	spi = ntohl(id->spi);
	145	fprintf(fp, "spi %u", spi);
	146	if (show_stats > 0)
	147	fprintf(fp, "(0x%08x)", spi);
	148	fprintf(fp, " ");
c7699875	149
ad273962	150	fprintf(fp, "reqid %u", reqid);
	151	if (show_stats > 0)
	152	fprintf(fp, "(0x%08x)", reqid);
	153	fprintf(fp, " ");
c7699875	154
ad273962	155	fprintf(fp, "mode %s\n", (mode ? "tunnel" : "transport"));
c7699875	156	}
	157
	158	static const char *strxf_limit(__u64 limit)
	159	{
	160	static char str[32];
	161	if (limit == XFRM_INF)
	162	strcpy(str, "(INF)");
	163	else
	164	sprintf(str, "%llu", limit);
	165
	166	return str;
	167	}
	168
	169	void xfrm_stats_print(struct xfrm_stats s, FILE fp, const char *prefix)
	170	{
	171	if (prefix)
	172	fprintf(fp, prefix);
	173	fprintf(fp, "stats:\n");
	174
	175	if (prefix)
	176	fprintf(fp, prefix);
	177	fprintf(fp, " ");
	178	fprintf(fp, "replay-window %d ", s->replay_window);
	179	fprintf(fp, "replay %d ", s->replay);
	180	fprintf(fp, "failed %d", s->integrity_failed);
	181	fprintf(fp, "\n");
	182	}
	183
	184	static const char *strxf_time(__u64 time)
	185	{
	186	static char str[32];
	187	struct tm *tp;
	188	time_t t;
	189
	190	if (time == 0) {
	191	strcpy(str, "(undefined)");
	192	} else {
	193	/* XXX: treat time in the same manner of xfrm_{user,state}.c */
	194	t = (long)time;
	195	tp = localtime(&t);
	196
	197	sprintf(str, "%04d/%02d/%02d %02d:%02d:%02d",
	198	tp->tm_year + 1900, tp->tm_mon + 1, tp->tm_mday,
	199	tp->tm_hour, tp->tm_min, tp->tm_sec);
	200	}
	201
	202	return str;
	203	}
	204
	205	void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg,
	206	struct xfrm_lifetime_cur *cur,
	207	FILE fp, const char prefix)
	208	{
	209	if (cfg) {
	210	if (prefix)
	211	fprintf(fp, prefix);
	212	fprintf(fp, "lifetime config:\n");
	213
	214	if (prefix)
	215	fprintf(fp, prefix);
	216	fprintf(fp, " ");
	217	fprintf(fp, "limit: ");
	218	fprintf(fp, "soft ");
	219	fprintf(fp, strxf_limit(cfg->soft_byte_limit));
220	fprintf(fp, "(bytes), hard ");
221	fprintf(fp, strxf_limit(cfg->hard_byte_limit));
222	fprintf(fp, "(bytes)\n");
223
224	if (prefix)
225	fprintf(fp, prefix);
226	fprintf(fp, " ");
227	fprintf(fp, "limit: ");
228	fprintf(fp, "soft ");
229	fprintf(fp, strxf_limit(cfg->soft_packet_limit));
230	fprintf(fp, "(packets), hard ");
231	fprintf(fp, strxf_limit(cfg->hard_packet_limit));
232	fprintf(fp, "(packets)\n");
233
234	if (prefix)
235	fprintf(fp, prefix);
236	fprintf(fp, " ");
237	fprintf(fp, "expire add: ");
238	fprintf(fp, "soft ");
239	fprintf(fp, "%llu", cfg->soft_add_expires_seconds);
240	fprintf(fp, "(sec), hard ");
241	fprintf(fp, "%llu", cfg->hard_add_expires_seconds);
242	fprintf(fp, "(sec)\n");
243
244	if (prefix)
245	fprintf(fp, prefix);
246	fprintf(fp, " ");
247	fprintf(fp, "expire use: ");
248	fprintf(fp, "soft ");
249	fprintf(fp, "%llu", cfg->soft_use_expires_seconds);
250	fprintf(fp, "(sec), hard ");
251	fprintf(fp, "%llu", cfg->hard_use_expires_seconds);
252	fprintf(fp, "(sec)\n");
253	}
254	if (cur) {
255	if (prefix)
256	fprintf(fp, prefix);
257	fprintf(fp, "lifetime current:\n");
258
259	if (prefix)
260	fprintf(fp, prefix);
261	fprintf(fp, " ");
262	fprintf(fp, "%llu(bytes), ", cur->bytes);
263	fprintf(fp, "%llu(packets)\n", cur->packets);
264	if (prefix)
265	fprintf(fp, prefix);
266	fprintf(fp, " ");
267	fprintf(fp, "add %s ", strxf_time(cur->add_time));
268	fprintf(fp, "use %s", strxf_time(cur->use_time));
269	fprintf(fp, "\n");
270	}
271	}
272
273	void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
274	FILE fp, const char prefix)
275	{
276	char abuf[256];
277	__u16 f;
278
279	f = sel->family;
280	if (f == AF_UNSPEC)
281	f = family;
282	if (f == AF_UNSPEC)
283	f = preferred_family;
284
285	if (prefix)
286	fprintf(fp, prefix);
287
288	memset(abuf, '\0', sizeof(abuf));
ad273962	289	fprintf(fp, "src %s/%d ", rt_addr_n2a(f, sizeof(sel->saddr),
	290	&sel->saddr, abuf, sizeof(abuf)),
	291	sel->prefixlen_s);
c7699875	292
c7699875	293	memset(abuf, '\0', sizeof(abuf));
ad273962	294	fprintf(fp, "dst %s/%d", rt_addr_n2a(f, sizeof(sel->daddr),
	295	&sel->daddr, abuf, sizeof(abuf)),
	296	sel->prefixlen_d);
c7699875	297
	298	fprintf(fp, "\n");
	299
	300	if (prefix)
	301	fprintf(fp, prefix);
	302	fprintf(fp, "\t");
	303
ad273962	304	fprintf(fp, "upspec proto %u ", sel->proto);
ad273962	305	fprintf(fp, "sport %u dport %u ", sel->sport, sel->dport);
c7699875	306
	307	if (sel->ifindex > 0) {
	308	char buf[IF_NAMESIZE];
	309
	310	memset(buf, '\0', sizeof(buf));
	311	if_indextoname(sel->ifindex, buf);
	312	fprintf(fp, "dev %s ", buf);
ad273962	313	}
c7699875	314
ad273962	315	if (show_stats > 0)
ad273962	316	fprintf(fp, "uid %u", sel->user);
c7699875	317	fprintf(fp, "\n");
	318	}
	319
	320	static void xfrm_algo_print(struct xfrm_algo algo, FILE fp,
	321	const char *prefix)
	322	{
	323	int len;
	324	int i;
	325
	326	if (prefix)
	327	fprintf(fp, prefix);
	328
	329	fprintf(fp, "%s", algo->alg_name);
	330
	331	len = algo->alg_key_len / 8;
	332	for (i = 0; i < len; i ++) {
	333	if (i % 4 == 0)
	334	fprintf(fp, " ");
	335	fprintf(fp, "%x", algo->alg_key[i]);
	336	}
	337
	338	fprintf(fp, "\n");
	339	}
	340
	341	static const char *strxf_mask(__u32 mask)
	342	{
	343	static char str[128];
	344	const int sn = sizeof(mask) * 8 - 1;
	345	__u32 b;
	346	int finish = 0;
	347	int broken = 0;
	348	int i = 0;
	349
	350	for (b = (1 << sn); b > 0; b >>= 1) {
	351	if ((b & mask) == 0) {
	352	if (!finish)
	353	finish = 1;
	354	} else {
	355	if (!finish)
	356	i ++;
	357	else {
	358	broken = 1;
	359	break;
	360	}
	361	}
	362	}
	363
	364	if (!broken)
	365	sprintf(str, "%u", i);
	366	else
	367	sprintf(str, "broken(%u)", mask);
	368
	369	return str;
	370	}
	371
	372	static void xfrm_tmpl_print(struct xfrm_user_tmpl *tmpls, int ntmpls,
	373	__u16 family, FILE fp, const char prefix)
	374	{
c7699875	375	int i;
c7699875	376
c7699875	377	for (i = 0; i < ntmpls; i++) {
	378	struct xfrm_user_tmpl *tmpl = &tmpls[i];
	379
	380	if (prefix)
	381	fprintf(fp, prefix);
ad273962	382
ad273962	383	fprintf(fp, "tmpl");
c7699875	384	xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode,
ad273962	385	tmpl->reqid, family, fp, prefix);
c7699875	386
ad273962	387	fprintf(fp, prefix);
c7699875	388	fprintf(fp, "\t");
ad273962	389	fprintf(fp, "level ");
	390	switch (tmpl->optional) {
	391	case 0:
	392	fprintf(fp, "required");
	393	break;
	394	case 1:
	395	fprintf(fp, "use");
	396	break;
	397	default:
	398	fprintf(fp, "%d", tmpl->optional);
	399	break;
	400	}
	401	fprintf(fp, " ");
	402
	403	if (show_stats > 0) {
	404	fprintf(fp, "share %s ", strxf_share(tmpl->share));
	405	fprintf(fp, "algo-mask:");
	406	fprintf(fp, "E=%s, ", strxf_mask(tmpl->ealgos));
	407	fprintf(fp, "A=%s, ", strxf_mask(tmpl->aalgos));
	408	fprintf(fp, "C=%s", strxf_mask(tmpl->calgos));
	409	}
c7699875	410	fprintf(fp, "\n");
	411	}
	412	}
	413
	414	void xfrm_xfrma_print(struct rtattr *tb[], int ntb, __u16 family,
	415	FILE fp, const char prefix)
	416	{
	417	int i;
	418
	419	for (i = 0; i < ntb; i++) {
	420	__u16 type = tb[i]->rta_type;
	421	void *data = RTA_DATA(tb[i]);
	422
	423	switch (type) {
	424	case XFRMA_ALG_CRYPT:
	425	if (prefix)
	426	fprintf(fp, prefix);
ad273962	427	xfrm_algo_print((struct xfrm_algo *)data, fp, "algo E ");
c7699875	428	break;
	429	case XFRMA_ALG_AUTH:
	430	if (prefix)
	431	fprintf(fp, prefix);
ad273962	432	xfrm_algo_print((struct xfrm_algo *)data, fp, "algo A ");
c7699875	433	break;
	434	case XFRMA_ALG_COMP:
	435	if (prefix)
	436	fprintf(fp, prefix);
ad273962	437	xfrm_algo_print((struct xfrm_algo *)data, fp, "algo C ");
c7699875	438	break;
	439	case XFRMA_ENCAP:
	440	if (prefix)
	441	fprintf(fp, prefix);
	442	/* XXX */
	443	fprintf(fp, "encap: (not implemented yet!)\n");
	444	break;
	445	case XFRMA_TMPL:
	446	{
	447	int len = tb[i]->rta_len;
	448	int ntmpls = len / sizeof(struct xfrm_user_tmpl);
	449
	450	xfrm_tmpl_print((struct xfrm_user_tmpl *)data,
	451	ntmpls, family, fp, prefix);
	452	break;
	453	}
	454	default:
	455	if (prefix)
	456	fprintf(fp, prefix);
	457	fprintf(fp, "unknown rta_type: %u\n", type);
	458	break;
	459	}
	460	}
	461	}
	462
	463	int xfrm_id_parse(xfrm_address_t saddr, struct xfrm_id id, __u16 *family,
	464	int argcp, char **argvp)
	465	{
	466	int argc = *argcp;
	467	char *argv = argvp;
	468	inet_prefix dst;
	469	inet_prefix src;
	470	__u8 proto = 0;
	471
	472	memset(&dst, 0, sizeof(dst));
	473	memset(&src, 0, sizeof(src));
	474
	475	while (1) {
	476	if (strcmp(*argv, "src") == 0) {
	477	NEXT_ARG();
	478
	479	get_prefix(&src, *argv, preferred_family);
	480	if (src.family == AF_UNSPEC)
	481	invarg("\"SADDR\" address family is AF_UNSPEC", *argv);
	482	if (family)
	483	*family = src.family;
	484
	485	memcpy(saddr, &src.data, sizeof(*saddr));
	486
	487	filter.id_src_mask = src.bitlen;
	488
	489	} else if (strcmp(*argv, "dst") == 0) {
	490	NEXT_ARG();
	491
	492	get_prefix(&dst, *argv, preferred_family);
	493	if (dst.family == AF_UNSPEC)
	494	invarg("\"DADDR\" address family is AF_UNSPEC", *argv);
	495	if (family)
	496	*family = dst.family;
	497
	498	memcpy(&id->daddr, &dst.data, sizeof(id->daddr));
	499
	500	filter.id_dst_mask = dst.bitlen;
	501
502	} else if (strcmp(*argv, "proto") == 0) {
503	struct protoent *pp;
504
505	NEXT_ARG();
506
507	pp = getprotobyname(*argv);
508	if (pp)
509	proto = pp->p_proto;
510	else {
511	if (get_u8(&proto, *argv, 0))
512	invarg("\"PROTO\" is invalid", *argv);
513	}
514
515	switch (proto) {
516	case IPPROTO_ESP:
517	case IPPROTO_AH:
518	case IPPROTO_COMP:
519	id->proto = proto;
520	break;
521	default:
522	invarg("\"PROTO\" is unsuppored proto", *argv);
523	}
524
525	filter.id_proto_mask = XFRM_FILTER_MASK_FULL;
526
527	} else if (strcmp(*argv, "spi") == 0) {
528	__u32 spi;
529
530	NEXT_ARG();
531	if (get_u32(&spi, *argv, 0))
532	invarg("\"SPI\" is invalid", *argv);
533
534	spi = htonl(spi);
535	id->spi = spi;
536
537	filter.id_spi_mask = XFRM_FILTER_MASK_FULL;
538
539	} else {
540	PREV_ARG(); /* back track */
541	break;
542	}
543
544	if (!NEXT_ARG_OK())
545	break;
546	NEXT_ARG();
547	}
548
549	if (src.family && dst.family && (src.family != dst.family))
550	invarg("the same address family is required between \"SADDR\" and \"DADDR\"", *argv);
551	if (proto == 0)
552	missarg("PROTO");
553
554	if (argc == *argcp)
555	missarg("ID");
556
557	*argcp = argc;
558	*argvp = argv;
559
560	return 0;
561	}
562
563	int xfrm_mode_parse(__u8 mode, int argcp, char ***argvp)
564	{
565	int argc = *argcp;
566	char *argv = argvp;
567
568	if (matches(*argv, "transport") == 0)
569	*mode = 0;
570	else if (matches(*argv, "tunnel") == 0)
571	*mode = 1;
572	else
573	invarg("\"MODE\" is invalid", *argv);
574
575	*argcp = argc;
576	*argvp = argv;
577
578	return 0;
579	}
580
581	/* NOTE: reqid is used by host-byte order */
582	int xfrm_reqid_parse(__u32 reqid, int argcp, char ***argvp)
583	{
584	int argc = *argcp;
585	char *argv = argvp;
586
587	if (get_u32(reqid, *argv, 0))
588	invarg("\"REQID\" is invalid", *argv);
589
590	*argcp = argc;
591	*argvp = argv;
592
593	return 0;
594	}
595
596	static int xfrm_selector_upspec_parse(struct xfrm_selector *sel,
597	int argcp, char **argvp)
598	{
599	int argc = *argcp;
600	char *argv = argvp;
601	__u8 upspec;
602
603	while (1) {
604	if (strcmp(*argv, "proto") == 0) {
605	NEXT_ARG();
606
607	if (strcmp(*argv, "any") == 0)
608	upspec = 0;
609	else {
610	struct protoent *pp;
611	pp = getprotobyname(*argv);
612	if (pp)
613	upspec = pp->p_proto;
614	else {
615	if (get_u8(&upspec, *argv, 0))
616	invarg("\"UPSPEC\" is invalid", *argv);
617	}
618	}
619	sel->proto = upspec;
620
621	filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL;
622
623	} else if (strcmp(*argv, "sport") == 0) {
624	NEXT_ARG();
625
626	if (get_u16(&sel->sport, *argv, 0))
627	invarg("\"PORT\" is invalid", *argv);
628	sel->sport = htons(sel->sport);
629	if (sel->sport)
630	sel->sport_mask = ~((__u16)0);
631
632	filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
633
634	} else if (strcmp(*argv, "dport") == 0) {
635	NEXT_ARG();
636
637	if (get_u16(&sel->dport, *argv, 0))
638	invarg("\"PORT\" is invalid", *argv);
639	sel->dport = htons(sel->dport);
640	if (sel->dport)
641	sel->dport_mask = ~((__u16)0);
642
643	filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
644
645	} else {
646	PREV_ARG(); /* back track */
647	break;
648	}
649
650	if (!NEXT_ARG_OK())
651	break;
652	NEXT_ARG();
653	}
654	if (argc == *argcp)
655	missarg("UPSPEC");
656
657	*argcp = argc;
658	*argvp = argv;
659
660	return 0;
661	}
662
663	int xfrm_selector_parse(struct xfrm_selector sel, int argcp, char ***argvp)
664	{
665	int argc = *argcp;
666	char *argv = argvp;
667	inet_prefix dst;
668	inet_prefix src;
669
670	memset(&dst, 0, sizeof(dst));
671	memset(&src, 0, sizeof(src));
672
673	while (1) {
674	if (strcmp(*argv, "src") == 0) {
675	NEXT_ARG();
676
677	get_prefix(&src, *argv, preferred_family);
678	if (src.family == AF_UNSPEC)
679	invarg("\"SADDR\" address family is AF_UNSPEC", *argv);
680	sel->family = src.family;
681
682	memcpy(&sel->saddr, &src.data, sizeof(sel->saddr));
683	sel->prefixlen_s = src.bitlen;
684
685	filter.sel_src_mask = src.bitlen;
686
687	} else if (strcmp(*argv, "dst") == 0) {
688	NEXT_ARG();
689
690	get_prefix(&dst, *argv, preferred_family);
691	if (dst.family == AF_UNSPEC)
692	invarg("\"DADDR\" address family is AF_UNSPEC", *argv);
693	sel->family = dst.family;
694
695	memcpy(&sel->daddr, &dst.data, sizeof(sel->daddr));
696	sel->prefixlen_d = dst.bitlen;
697
698	filter.sel_dst_mask = dst.bitlen;
699
700	} else if (strcmp(*argv, "upspec") == 0) {
701	NEXT_ARG();
702
703	xfrm_selector_upspec_parse(sel, &argc, &argv);
704
705	} else if (strcmp(*argv, "dev") == 0) {
706	int ifindex;
707
708	NEXT_ARG();
709
710	if (strcmp(*argv, "none") == 0)
711	ifindex = 0;
712	else {
713	ifindex = if_nametoindex(*argv);
714	if (ifindex <= 0)
715	invarg("\"DEV\" is invalid", *argv);
716	}
717	sel->ifindex = ifindex;
718
719	filter.sel_dev_mask = XFRM_FILTER_MASK_FULL;
720
721	} else {
722	PREV_ARG(); /* back track */
723	break;
724	}
725
726	if (!NEXT_ARG_OK())
727	break;
728
729	NEXT_ARG();
730	}
731
732	if (src.family && dst.family && (src.family != dst.family))
733	invarg("the same address family is required between \"SADDR\" and \"DADDR\"", *argv);
734
735	if (argc == *argcp)
736	missarg("SELECTOR");
737
738	*argcp = argc;
739	*argvp = argv;
740
741	return 0;
742	}
743
744	int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
745	int argcp, char **argvp)
746	{
747	int argc = *argcp;
748	char *argv = argvp;
749	int ret;
750
751	if (strcmp(*argv, "time-soft") == 0) {
752	NEXT_ARG();
753	ret = get_u64(&lft->soft_add_expires_seconds, *argv, 0);
754	if (ret)
755	invarg("\"time-soft\" value is invalid", *argv);
756	} else if (strcmp(*argv, "time-hard") == 0) {
757	NEXT_ARG();
758	ret = get_u64(&lft->hard_add_expires_seconds, *argv, 0);
759	if (ret)
760	invarg("\"time-hard\" value is invalid", *argv);
761	} else if (strcmp(*argv, "time-use-soft") == 0) {
762	NEXT_ARG();
763	ret = get_u64(&lft->soft_use_expires_seconds, *argv, 0);
764	if (ret)
765	invarg("\"time-use-soft\" value is invalid", *argv);
766	} else if (strcmp(*argv, "time-use-hard") == 0) {
767	NEXT_ARG();
768	ret = get_u64(&lft->hard_use_expires_seconds, *argv, 0);
769	if (ret)
770	invarg("\"time-use-hard\" value is invalid", *argv);
771	} else if (strcmp(*argv, "byte-soft") == 0) {
772	NEXT_ARG();
773	ret = get_u64(&lft->soft_byte_limit, *argv, 0);
774	if (ret)
775	invarg("\"byte-soft\" value is invalid", *argv);
776	} else if (strcmp(*argv, "byte-hard") == 0) {
777	NEXT_ARG();
778	ret = get_u64(&lft->hard_byte_limit, *argv, 0);
779	if (ret)
780	invarg("\"byte-hard\" value is invalid", *argv);
781	} else if (strcmp(*argv, "packet-soft") == 0) {
782	NEXT_ARG();
783	ret = get_u64(&lft->soft_packet_limit, *argv, 0);
784	if (ret)
785	invarg("\"packet-soft\" value is invalid", *argv);
786	} else if (strcmp(*argv, "packet-hard") == 0) {
787	NEXT_ARG();
788	ret = get_u64(&lft->hard_packet_limit, *argv, 0);
789	if (ret)
790	invarg("\"packet-hard\" value is invalid", *argv);
791	} else
792	invarg("\"LIMIT\" is invalid", *argv);
793
794	*argcp = argc;
795	*argvp = argv;
796
797	return 0;
798	}
799
800	int do_xfrm(int argc, char **argv)
801	{
802	memset(&filter, 0, sizeof(filter));
803
804	if (argc < 1)
805	usage();
806
ad273962	807	if (matches(*argv, "state") == 0 \|\|
ad273962	808	matches(*argv, "sa") == 0) {
c7699875	809	return do_xfrm_state(argc-1, argv+1);
ad273962	810	} else if (matches(*argv, "policy") == 0)
c7699875	811	return do_xfrm_policy(argc-1, argv+1);
ad273962	812	else if (matches(*argv, "help") == 0) {
c7699875	813	usage();
	814	fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv);
	815	exit(-1);
	816	}
	817	usage();
	818	}