Import patch ipxfrm-20040707_2.diff

(Logical change 1.53)
diff --git a/ip/ipxfrm.c b/ip/ipxfrm.c
index e69de29..786600b 100644
--- a/ip/ipxfrm.c
+++ b/ip/ipxfrm.c
@@ -0,0 +1,808 @@
+/* $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;
+}
+
+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, "%s ", rt_addr_n2a(family, sizeof(*saddr),
+				       saddr, abuf, sizeof(abuf)));
+	memset(abuf, '\0', sizeof(abuf));
+	fprintf(fp, "%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;
+	}
+
+	switch (id->proto) {
+	case IPPROTO_ESP:
+	case IPPROTO_AH:
+	case IPPROTO_COMP:
+		fprintf(fp, "%s ", p);
+		break;
+	default:
+		fprintf(fp, "unspec(%s)", p);
+		break;
+	}
+
+	switch (id->proto) {
+	case IPPROTO_ESP:
+	case IPPROTO_AH:
+	case IPPROTO_COMP:
+	default:
+		spi = ntohl(id->spi);
+		fprintf(fp, "spi %d(0x%08x) ", spi, spi);
+		break;
+	}
+
+	fprintf(fp, "reqid %d ", reqid);
+	fprintf(fp, "%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, "%s/%d[%u]", rt_addr_n2a(f, sizeof(sel->saddr),
+					     &sel->saddr,
+					     abuf, sizeof(abuf)),
+		sel->prefixlen_s, sel->sport);
+
+	memset(abuf, '\0', sizeof(abuf));
+	fprintf(fp, " %s/%d[%u]", rt_addr_n2a(f, sizeof(sel->daddr),
+					      &sel->daddr,
+					      abuf, sizeof(abuf)),
+		sel->prefixlen_d, sel->dport);
+
+	fprintf(fp, "\n");
+
+	if (prefix)
+		fprintf(fp, prefix);
+	fprintf(fp, "\t");
+
+	fprintf(fp, "upspec %u ", sel->proto);
+
+	if (sel->ifindex > 0) {
+		char buf[IF_NAMESIZE];
+
+		memset(buf, '\0', sizeof(buf));
+		if_indextoname(sel->ifindex, buf);
+		fprintf(fp, "dev %s ", buf);
+	} else
+		fprintf(fp, "dev (none) ");
+
+	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)
+{
+	char buf[32];
+	const char *p = NULL;
+	int i;
+
+	if (prefix) {
+		strcpy(buf, prefix);
+		strcat(buf, "  ");
+	} else
+		strcpy(buf, "  ");
+	p = buf;
+
+	for (i = 0; i < ntmpls; i++) {
+		struct xfrm_user_tmpl *tmpl = &tmpls[i];
+
+		if (prefix)
+			fprintf(fp, prefix);
+		fprintf(fp, "tmpl-%d:\n", i+1);
+		xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode,
+				   tmpl->reqid, family, fp, p);
+
+		fprintf(fp, p);
+		fprintf(fp, "\t");
+		fprintf(fp, "level %s ", ((tmpl->optional == 0) ? "required" :
+					  (tmpl->optional == 1) ? "use" :
+					  "unknown-level"));
+		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, "E:");
+			break;
+		case XFRMA_ALG_AUTH:
+			if (prefix)
+				fprintf(fp, prefix);
+			xfrm_algo_print((struct xfrm_algo *)data, fp, "A:");
+			break;
+		case XFRMA_ALG_COMP:
+			if (prefix)
+				fprintf(fp, prefix);
+			xfrm_algo_print((struct xfrm_algo *)data, fp, "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 (strcmp(*argv, "state") == 0 ||
+	    strcmp(*argv, "sa") == 0) {
+		return do_xfrm_state(argc-1, argv+1);
+	} else if (strcmp(*argv, "policy") == 0 ||
+		   strcmp(*argv, "pol") == 0) {
+		return do_xfrm_policy(argc-1, argv+1);
+	} else if (strcmp(*argv, "help") == 0) {
+		usage();
+		fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv);
+		exit(-1);
+	}
+	usage();
+}