From a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 16:18:53 +0200
Subject: Adding upstream version 6.1.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 ip/ipxfrm.c | 1564 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 1564 insertions(+)
 create mode 100644 ip/ipxfrm.c

(limited to 'ip/ipxfrm.c')

diff --git a/ip/ipxfrm.c b/ip/ipxfrm.c
new file mode 100644
index 0000000..1c59596
--- /dev/null
+++ b/ip/ipxfrm.c
@@ -0,0 +1,1564 @@
+/* $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, see <http://www.gnu.org/licenses>.
+ */
+/*
+ * based on ip.c, iproute.c
+ */
+/*
+ * Authors:
+ *	Masahide NAKAMURA @USAGI
+ */
+
+#include <alloca.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <time.h>
+#include <netdb.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <linux/udp.h>
+
+#include "utils.h"
+#include "xfrm.h"
+#include "ip_common.h"
+
+#define STRBUF_SIZE	(128)
+
+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 | monitor\n");
+	exit(-1);
+}
+
+/* This is based on utils.c(inet_addr_match) */
+int xfrm_addr_match(xfrm_address_t *x1, xfrm_address_t *x2, int bits)
+{
+	__u32 *a1 = (__u32 *)x1;
+	__u32 *a2 = (__u32 *)x2;
+	int words = bits >> 0x05;
+
+	bits &= 0x1f;
+
+	if (words)
+		if (memcmp(a1, a2, words << 2))
+			return -1;
+
+	if (bits) {
+		__u32 w1, w2;
+		__u32 mask;
+
+		w1 = a1[words];
+		w2 = a2[words];
+
+		mask = htonl((0xffffffff) << (0x20 - bits));
+
+		if ((w1 ^ w2) & mask)
+			return 1;
+	}
+
+	return 0;
+}
+
+int xfrm_xfrmproto_is_ipsec(__u8 proto)
+{
+	return (proto ==  IPPROTO_ESP ||
+		proto ==  IPPROTO_AH  ||
+		proto ==  IPPROTO_COMP);
+}
+
+int xfrm_xfrmproto_is_ro(__u8 proto)
+{
+	return (proto ==  IPPROTO_ROUTING ||
+		proto ==  IPPROTO_DSTOPTS);
+}
+
+struct typeent {
+	const char *t_name;
+	int t_type;
+};
+
+static const struct typeent xfrmproto_types[] = {
+	{ "esp", IPPROTO_ESP }, { "ah", IPPROTO_AH }, { "comp", IPPROTO_COMP },
+	{ "route2", IPPROTO_ROUTING }, { "hao", IPPROTO_DSTOPTS },
+	{ "ipsec-any", IPSEC_PROTO_ANY },
+	{ NULL, -1 }
+};
+
+int xfrm_xfrmproto_getbyname(char *name)
+{
+	int i;
+
+	for (i = 0; ; i++) {
+		const struct typeent *t = &xfrmproto_types[i];
+
+		if (!t->t_name || t->t_type == -1)
+			break;
+
+		if (strcmp(t->t_name, name) == 0)
+			return t->t_type;
+	}
+
+	return -1;
+}
+
+const char *strxf_xfrmproto(__u8 proto)
+{
+	static char str[16];
+	int i;
+
+	for (i = 0; ; i++) {
+		const struct typeent *t = &xfrmproto_types[i];
+
+		if (!t->t_name || t->t_type == -1)
+			break;
+
+		if (t->t_type == proto)
+			return t->t_name;
+	}
+
+	sprintf(str, "%u", proto);
+	return str;
+}
+
+static const struct typeent algo_types[] = {
+	{ "enc", XFRMA_ALG_CRYPT }, { "auth", XFRMA_ALG_AUTH },
+	{ "comp", XFRMA_ALG_COMP }, { "aead", XFRMA_ALG_AEAD },
+	{ "auth-trunc", XFRMA_ALG_AUTH_TRUNC },
+	{ NULL, -1 }
+};
+
+int xfrm_algotype_getbyname(char *name)
+{
+	int i;
+
+	for (i = 0; ; i++) {
+		const struct typeent *t = &algo_types[i];
+
+		if (!t->t_name || t->t_type == -1)
+			break;
+
+		if (strcmp(t->t_name, name) == 0)
+			return t->t_type;
+	}
+
+	return -1;
+}
+
+const char *strxf_algotype(int type)
+{
+	static char str[32];
+	int i;
+
+	for (i = 0; ; i++) {
+		const struct typeent *t = &algo_types[i];
+
+		if (!t->t_name || t->t_type == -1)
+			break;
+
+		if (t->t_type == type)
+			return t->t_name;
+	}
+
+	sprintf(str, "%d", type);
+	return str;
+}
+
+static const char *strxf_mask8(__u8 mask)
+{
+	static char str[16];
+	const int sn = sizeof(mask) * 8 - 1;
+	__u8 b;
+	int i = 0;
+
+	for (b = (1 << sn); b > 0; b >>= 1)
+		str[i++] = ((b & mask) ? '1' : '0');
+	str[i] = '\0';
+
+	return str;
+}
+
+const char *strxf_mask32(__u32 mask)
+{
+	static char str[16];
+
+	sprintf(str, "%.8x", mask);
+
+	return str;
+}
+
+static 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, "%u", 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, "%u", proto);
+		p = buf;
+	}
+
+	return p;
+}
+
+const char *strxf_ptype(__u8 ptype)
+{
+	static char str[16];
+
+	switch (ptype) {
+	case XFRM_POLICY_TYPE_MAIN:
+		strcpy(str, "main");
+		break;
+	case XFRM_POLICY_TYPE_SUB:
+		strcpy(str, "sub");
+		break;
+	default:
+		sprintf(str, "%u", ptype);
+		break;
+	}
+
+	return str;
+}
+
+static void xfrm_id_info_print(xfrm_address_t *saddr, struct xfrm_id *id,
+			__u8 mode, __u32 reqid, __u16 family, int force_spi,
+			FILE *fp, const char *prefix, const char *title)
+{
+	if (title)
+		fputs(title, fp);
+
+	fprintf(fp, "src %s ", rt_addr_n2a(family, sizeof(*saddr), saddr));
+	fprintf(fp, "dst %s", rt_addr_n2a(family, sizeof(id->daddr), &id->daddr));
+	fprintf(fp, "%s", _SL_);
+
+	if (prefix)
+		fputs(prefix, fp);
+	fprintf(fp, "\t");
+
+	fprintf(fp, "proto %s ", strxf_xfrmproto(id->proto));
+
+	if (show_stats > 0 || force_spi || id->spi) {
+		__u32 spi = ntohl(id->spi);
+
+		fprintf(fp, "spi 0x%08x", spi);
+		if (show_stats > 0)
+			fprintf(fp, "(%u)", spi);
+		fprintf(fp, " ");
+	}
+
+	fprintf(fp, "reqid %u", reqid);
+	if (show_stats > 0)
+		fprintf(fp, "(0x%08x)", reqid);
+	fprintf(fp, " ");
+
+	fprintf(fp, "mode ");
+	switch (mode) {
+	case XFRM_MODE_TRANSPORT:
+		fprintf(fp, "transport");
+		break;
+	case XFRM_MODE_TUNNEL:
+		fprintf(fp, "tunnel");
+		break;
+	case XFRM_MODE_ROUTEOPTIMIZATION:
+		fprintf(fp, "ro");
+		break;
+	case XFRM_MODE_IN_TRIGGER:
+		fprintf(fp, "in_trigger");
+		break;
+	case XFRM_MODE_BEET:
+		fprintf(fp, "beet");
+		break;
+	default:
+		fprintf(fp, "%u", mode);
+		break;
+	}
+	fprintf(fp, "%s", _SL_);
+}
+
+static const char *strxf_limit(__u64 limit)
+{
+	static char str[32];
+
+	if (limit == XFRM_INF)
+		strcpy(str, "(INF)");
+	else
+		sprintf(str, "%llu", (unsigned long long) limit);
+
+	return str;
+}
+
+static void xfrm_stats_print(struct xfrm_stats *s, FILE *fp,
+			     const char *prefix)
+{
+	if (prefix)
+		fputs(prefix, fp);
+	fprintf(fp, "stats:%s", _SL_);
+
+	if (prefix)
+		fputs(prefix, fp);
+	fprintf(fp, "  replay-window %u replay %u failed %u%s",
+		s->replay_window, s->replay, s->integrity_failed, _SL_);
+}
+
+static const char *strxf_time(__u64 time)
+{
+	static char str[32];
+
+	if (time == 0)
+		strcpy(str, "-");
+	else {
+		time_t t;
+		struct tm *tp;
+
+		/* XXX: treat time in the same manner of kernel's
+		 * net/xfrm/xfrm_{user,state}.c
+		 */
+		t = (long)time;
+		tp = localtime(&t);
+
+		strftime(str, sizeof(str), "%Y-%m-%d %T", tp);
+	}
+
+	return str;
+}
+
+static void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg,
+			 struct xfrm_lifetime_cur *cur,
+			 FILE *fp, const char *prefix)
+{
+	if (cfg) {
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "lifetime config:%s", _SL_);
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "  limit: soft %s(bytes),",
+			strxf_limit(cfg->soft_byte_limit));
+		fprintf(fp, " hard %s(bytes)%s",
+			strxf_limit(cfg->hard_byte_limit), _SL_);
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "  limit: soft %s(packets),",
+			strxf_limit(cfg->soft_packet_limit));
+		fprintf(fp, " hard %s(packets)%s",
+			strxf_limit(cfg->hard_packet_limit), _SL_);
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "  expire add: soft %llu(sec), hard %llu(sec)%s",
+			(unsigned long long) cfg->soft_add_expires_seconds,
+			(unsigned long long) cfg->hard_add_expires_seconds,
+			_SL_);
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "  expire use: soft %llu(sec), hard %llu(sec)%s",
+			(unsigned long long) cfg->soft_use_expires_seconds,
+			(unsigned long long) cfg->hard_use_expires_seconds,
+			_SL_);
+	}
+	if (cur) {
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "lifetime current:%s", _SL_);
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "  %llu(bytes), %llu(packets)%s",
+			(unsigned long long) cur->bytes,
+			(unsigned long long) cur->packets,
+			 _SL_);
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "  add %s ", strxf_time(cur->add_time));
+		fprintf(fp, "use %s%s", strxf_time(cur->use_time), _SL_);
+	}
+}
+
+void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
+			 FILE *fp, const char *prefix)
+{
+	__u16 f;
+
+	f = sel->family;
+	if (f == AF_UNSPEC)
+		f = family;
+	if (f == AF_UNSPEC)
+		f = preferred_family;
+
+	if (prefix)
+		fputs(prefix, fp);
+
+	fprintf(fp, "src %s/%u ",
+		rt_addr_n2a(f, sizeof(sel->saddr), &sel->saddr),
+		sel->prefixlen_s);
+
+	fprintf(fp, "dst %s/%u ",
+		rt_addr_n2a(f, sizeof(sel->daddr), &sel->daddr),
+		sel->prefixlen_d);
+
+	if (sel->proto)
+		fprintf(fp, "proto %s ", strxf_proto(sel->proto));
+	switch (sel->proto) {
+	case IPPROTO_TCP:
+	case IPPROTO_UDP:
+	case IPPROTO_SCTP:
+	case IPPROTO_DCCP:
+	default: /* XXX */
+		if (sel->sport_mask)
+			fprintf(fp, "sport %u ", ntohs(sel->sport));
+		if (sel->dport_mask)
+			fprintf(fp, "dport %u ", ntohs(sel->dport));
+		break;
+	case IPPROTO_ICMP:
+	case IPPROTO_ICMPV6:
+		/* type/code is stored at sport/dport in selector */
+		if (sel->sport_mask)
+			fprintf(fp, "type %u ", ntohs(sel->sport));
+		if (sel->dport_mask)
+			fprintf(fp, "code %u ", ntohs(sel->dport));
+		break;
+	case IPPROTO_GRE:
+		if (sel->sport_mask || sel->dport_mask)
+			fprintf(fp, "key %u ",
+				(((__u32)ntohs(sel->sport)) << 16) +
+				ntohs(sel->dport));
+		break;
+	case IPPROTO_MH:
+		if (sel->sport_mask)
+			fprintf(fp, "type %u ", ntohs(sel->sport));
+		if (sel->dport_mask) {
+			if (show_stats > 0)
+				fprintf(fp, "(dport) 0x%.4x ", sel->dport);
+		}
+		break;
+	}
+
+	if (sel->ifindex > 0)
+		fprintf(fp, "dev %s ", ll_index_to_name(sel->ifindex));
+
+	if (show_stats > 0)
+		fprintf(fp, "uid %u", sel->user);
+
+	fprintf(fp, "%s", _SL_);
+}
+
+static void __xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
+			      FILE *fp, const char *prefix, int newline,
+			      bool nokeys)
+{
+	int keylen;
+	int i;
+
+	if (prefix)
+		fputs(prefix, fp);
+
+	fprintf(fp, "%s ", strxf_algotype(type));
+
+	if (len < sizeof(*algo)) {
+		fprintf(fp, "(ERROR truncated)");
+		goto fin;
+	}
+	len -= sizeof(*algo);
+
+	fprintf(fp, "%s ", algo->alg_name);
+
+	keylen = algo->alg_key_len / 8;
+	if (len < keylen) {
+		fprintf(fp, "(ERROR truncated)");
+		goto fin;
+	}
+
+	if (nokeys)
+		fprintf(fp, "<<Keys hidden>>");
+	else if (keylen > 0) {
+		fprintf(fp, "0x");
+		for (i = 0; i < keylen; i++)
+			fprintf(fp, "%.2x", (unsigned char)algo->alg_key[i]);
+
+		if (show_stats > 0)
+			fprintf(fp, " (%d bits)", algo->alg_key_len);
+	}
+
+ fin:
+	if (newline)
+		fprintf(fp, "%s", _SL_);
+}
+
+static inline void xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
+				   FILE *fp, const char *prefix, bool nokeys)
+{
+	return __xfrm_algo_print(algo, type, len, fp, prefix, 1, nokeys);
+}
+
+static void xfrm_aead_print(struct xfrm_algo_aead *algo, int len,
+			    FILE *fp, const char *prefix, bool nokeys)
+{
+	struct xfrm_algo *base_algo = alloca(sizeof(*base_algo) + algo->alg_key_len / 8);
+
+	memcpy(base_algo->alg_name, algo->alg_name, sizeof(base_algo->alg_name));
+	base_algo->alg_key_len = algo->alg_key_len;
+	memcpy(base_algo->alg_key, algo->alg_key, algo->alg_key_len / 8);
+
+	__xfrm_algo_print(base_algo, XFRMA_ALG_AEAD, len, fp, prefix, 0,
+			  nokeys);
+
+	fprintf(fp, " %d", algo->alg_icv_len);
+
+	fprintf(fp, "%s", _SL_);
+}
+
+static void xfrm_auth_trunc_print(struct xfrm_algo_auth *algo, int len,
+				  FILE *fp, const char *prefix, bool nokeys)
+{
+	struct xfrm_algo *base_algo = alloca(sizeof(*base_algo) + algo->alg_key_len / 8);
+
+	memcpy(base_algo->alg_name, algo->alg_name, sizeof(base_algo->alg_name));
+	base_algo->alg_key_len = algo->alg_key_len;
+	memcpy(base_algo->alg_key, algo->alg_key, algo->alg_key_len / 8);
+
+	__xfrm_algo_print(base_algo, XFRMA_ALG_AUTH_TRUNC, len, fp, prefix, 0,
+			  nokeys);
+
+	fprintf(fp, " %d", algo->alg_trunc_len);
+
+	fprintf(fp, "%s", _SL_);
+}
+
+static void xfrm_tmpl_print(struct xfrm_user_tmpl *tmpls, int len,
+			    FILE *fp, const char *prefix)
+{
+	int ntmpls = len / sizeof(struct xfrm_user_tmpl);
+	int i;
+
+	if (ntmpls <= 0) {
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "(ERROR \"tmpl\" truncated)");
+		fprintf(fp, "%s", _SL_);
+		return;
+	}
+
+	for (i = 0; i < ntmpls; i++) {
+		struct xfrm_user_tmpl *tmpl = &tmpls[i];
+
+		if (prefix)
+			fputs(prefix, fp);
+
+		xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode,
+				   tmpl->reqid, tmpl->family, 0, fp, prefix, "tmpl ");
+
+		if (show_stats > 0 || tmpl->optional) {
+			if (prefix)
+				fputs(prefix, fp);
+			fprintf(fp, "\t");
+			switch (tmpl->optional) {
+			case 0:
+				if (show_stats > 0)
+					fprintf(fp, "level required ");
+				break;
+			case 1:
+				fprintf(fp, "level use ");
+				break;
+			default:
+				fprintf(fp, "level %u ", tmpl->optional);
+				break;
+			}
+
+			if (show_stats > 0)
+				fprintf(fp, "share %s ", strxf_share(tmpl->share));
+
+			fprintf(fp, "%s", _SL_);
+		}
+
+		if (show_stats > 0) {
+			if (prefix)
+				fputs(prefix, fp);
+			fprintf(fp, "\t");
+			fprintf(fp, "%s-mask %s ",
+				strxf_algotype(XFRMA_ALG_CRYPT),
+				strxf_mask32(tmpl->ealgos));
+			fprintf(fp, "%s-mask %s ",
+				strxf_algotype(XFRMA_ALG_AUTH),
+				strxf_mask32(tmpl->aalgos));
+			fprintf(fp, "%s-mask %s",
+				strxf_algotype(XFRMA_ALG_COMP),
+				strxf_mask32(tmpl->calgos));
+
+			fprintf(fp, "%s", _SL_);
+		}
+	}
+}
+
+static void xfrm_output_mark_print(struct rtattr *tb[], FILE *fp)
+{
+	__u32 output_mark = rta_getattr_u32(tb[XFRMA_OUTPUT_MARK]);
+
+	fprintf(fp, "output-mark 0x%x", output_mark);
+	if (tb[XFRMA_SET_MARK_MASK]) {
+		__u32 mask = rta_getattr_u32(tb[XFRMA_SET_MARK_MASK]);
+		fprintf(fp, "/0x%x", mask);
+	}
+}
+
+int xfrm_parse_mark(struct xfrm_mark *mark, int *argcp, char ***argvp)
+{
+	int argc = *argcp;
+	char **argv = *argvp;
+
+	NEXT_ARG();
+	if (get_u32(&mark->v, *argv, 0)) {
+		invarg("MARK value is invalid\n", *argv);
+	}
+	if (argc > 1)
+		NEXT_ARG();
+	else { /* last entry on parse line */
+		mark->m = 0xffffffff;
+		goto done;
+	}
+
+	if (strcmp(*argv, "mask") == 0) {
+		NEXT_ARG();
+		if (get_u32(&mark->m, *argv, 0)) {
+			invarg("MASK value is invalid\n", *argv);
+		}
+	} else {
+		mark->m = 0xffffffff;
+		PREV_ARG();
+	}
+
+done:
+	*argcp = argc;
+	*argvp = argv;
+
+	return 0;
+}
+
+void xfrm_xfrma_print(struct rtattr *tb[], __u16 family,
+		      FILE *fp, const char *prefix, bool nokeys)
+{
+	if (tb[XFRMA_MARK]) {
+		struct rtattr *rta = tb[XFRMA_MARK];
+		struct xfrm_mark *m = RTA_DATA(rta);
+
+		fprintf(fp, "\tmark %#x/%#x ", m->v, m->m);
+
+		if (tb[XFRMA_OUTPUT_MARK])
+			xfrm_output_mark_print(tb, fp);
+		fprintf(fp, "%s", _SL_);
+	} else if (tb[XFRMA_OUTPUT_MARK]) {
+		fprintf(fp, "\t");
+
+		xfrm_output_mark_print(tb, fp);
+		fprintf(fp, "%s", _SL_);
+	}
+
+	if (tb[XFRMA_ALG_AUTH] && !tb[XFRMA_ALG_AUTH_TRUNC]) {
+		struct rtattr *rta = tb[XFRMA_ALG_AUTH];
+
+		xfrm_algo_print(RTA_DATA(rta), XFRMA_ALG_AUTH, RTA_PAYLOAD(rta),
+				fp, prefix, nokeys);
+	}
+
+	if (tb[XFRMA_ALG_AUTH_TRUNC]) {
+		struct rtattr *rta = tb[XFRMA_ALG_AUTH_TRUNC];
+
+		xfrm_auth_trunc_print(RTA_DATA(rta), RTA_PAYLOAD(rta), fp,
+				      prefix, nokeys);
+	}
+
+	if (tb[XFRMA_ALG_AEAD]) {
+		struct rtattr *rta = tb[XFRMA_ALG_AEAD];
+
+		xfrm_aead_print(RTA_DATA(rta), RTA_PAYLOAD(rta), fp, prefix,
+				nokeys);
+	}
+
+	if (tb[XFRMA_ALG_CRYPT]) {
+		struct rtattr *rta = tb[XFRMA_ALG_CRYPT];
+
+		xfrm_algo_print(RTA_DATA(rta), XFRMA_ALG_CRYPT,
+				RTA_PAYLOAD(rta), fp, prefix, nokeys);
+	}
+
+	if (tb[XFRMA_ALG_COMP]) {
+		struct rtattr *rta = tb[XFRMA_ALG_COMP];
+
+		xfrm_algo_print(RTA_DATA(rta), XFRMA_ALG_COMP, RTA_PAYLOAD(rta),
+				fp, prefix, nokeys);
+	}
+
+	if (tb[XFRMA_ENCAP]) {
+		struct xfrm_encap_tmpl *e;
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "encap ");
+
+		if (RTA_PAYLOAD(tb[XFRMA_ENCAP]) < sizeof(*e)) {
+			fprintf(fp, "(ERROR truncated)");
+			fprintf(fp, "%s", _SL_);
+			return;
+		}
+		e = RTA_DATA(tb[XFRMA_ENCAP]);
+
+		fprintf(fp, "type ");
+		switch (e->encap_type) {
+		case UDP_ENCAP_ESPINUDP_NON_IKE:
+			fprintf(fp, "espinudp-nonike ");
+			break;
+		case UDP_ENCAP_ESPINUDP:
+			fprintf(fp, "espinudp ");
+			break;
+		case TCP_ENCAP_ESPINTCP:
+			fprintf(fp, "espintcp ");
+			break;
+		default:
+			fprintf(fp, "%u ", e->encap_type);
+			break;
+		}
+		fprintf(fp, "sport %u ", ntohs(e->encap_sport));
+		fprintf(fp, "dport %u ", ntohs(e->encap_dport));
+
+		fprintf(fp, "addr %s",
+			rt_addr_n2a(family, sizeof(e->encap_oa), &e->encap_oa));
+		fprintf(fp, "%s", _SL_);
+	}
+
+	if (tb[XFRMA_TMPL]) {
+		struct rtattr *rta = tb[XFRMA_TMPL];
+
+		xfrm_tmpl_print(RTA_DATA(rta),
+				RTA_PAYLOAD(rta), fp, prefix);
+	}
+
+	if (tb[XFRMA_COADDR]) {
+		const xfrm_address_t *coa;
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "coa ");
+
+		coa = RTA_DATA(tb[XFRMA_COADDR]);
+		if (RTA_PAYLOAD(tb[XFRMA_COADDR]) < sizeof(*coa)) {
+			fprintf(fp, "(ERROR truncated)");
+			fprintf(fp, "%s", _SL_);
+			return;
+		}
+
+		fprintf(fp, "%s",
+			rt_addr_n2a(family, sizeof(*coa), coa));
+		fprintf(fp, "%s", _SL_);
+	}
+
+	if (tb[XFRMA_LASTUSED]) {
+		__u64 lastused;
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "lastused ");
+
+		if (RTA_PAYLOAD(tb[XFRMA_LASTUSED]) < sizeof(lastused)) {
+			fprintf(fp, "(ERROR truncated)");
+			fprintf(fp, "%s", _SL_);
+			return;
+		}
+
+		lastused = rta_getattr_u64(tb[XFRMA_LASTUSED]);
+
+		fprintf(fp, "%s", strxf_time(lastused));
+		fprintf(fp, "%s", _SL_);
+	}
+
+	if (tb[XFRMA_REPLAY_VAL]) {
+		struct xfrm_replay_state *replay;
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "anti-replay context: ");
+
+		if (RTA_PAYLOAD(tb[XFRMA_REPLAY_VAL]) < sizeof(*replay)) {
+			fprintf(fp, "(ERROR truncated)");
+			fprintf(fp, "%s", _SL_);
+			return;
+		}
+
+		replay = RTA_DATA(tb[XFRMA_REPLAY_VAL]);
+		fprintf(fp, "seq 0x%x, oseq 0x%x, bitmap 0x%08x",
+			replay->seq, replay->oseq, replay->bitmap);
+		fprintf(fp, "%s", _SL_);
+	}
+
+	if (tb[XFRMA_REPLAY_ESN_VAL]) {
+		struct xfrm_replay_state_esn *replay;
+		unsigned int i, j;
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "anti-replay esn context:");
+
+		if (RTA_PAYLOAD(tb[XFRMA_REPLAY_ESN_VAL]) < sizeof(*replay)) {
+			fprintf(fp, "(ERROR truncated)");
+			fprintf(fp, "%s", _SL_);
+			return;
+		}
+		fprintf(fp, "%s", _SL_);
+
+		replay = RTA_DATA(tb[XFRMA_REPLAY_ESN_VAL]);
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, " seq-hi 0x%x, seq 0x%x, oseq-hi 0x%0x, oseq 0x%0x",
+			replay->seq_hi, replay->seq, replay->oseq_hi,
+			replay->oseq);
+		fprintf(fp, "%s", _SL_);
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, " replay_window %u, bitmap-length %u",
+			replay->replay_window, replay->bmp_len);
+		for (i = replay->bmp_len, j = 0; i; i--) {
+			if (j++ % 8 == 0) {
+				fprintf(fp, "%s", _SL_);
+				if (prefix)
+					fputs(prefix, fp);
+				fprintf(fp, " ");
+			}
+			fprintf(fp, "%08x ", replay->bmp[i - 1]);
+		}
+		fprintf(fp, "%s", _SL_);
+	}
+	if (tb[XFRMA_OFFLOAD_DEV]) {
+		struct xfrm_user_offload *xuo;
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "crypto offload parameters: ");
+
+		if (RTA_PAYLOAD(tb[XFRMA_OFFLOAD_DEV]) < sizeof(*xuo)) {
+			fprintf(fp, "(ERROR truncated)");
+			fprintf(fp, "%s", _SL_);
+			return;
+		}
+
+		xuo = (struct xfrm_user_offload *)
+			RTA_DATA(tb[XFRMA_OFFLOAD_DEV]);
+		fprintf(fp, "dev %s dir %s", ll_index_to_name(xuo->ifindex),
+			(xuo->flags & XFRM_OFFLOAD_INBOUND) ? "in" : "out");
+		fprintf(fp, "%s", _SL_);
+	}
+	if (tb[XFRMA_IF_ID]) {
+		__u32 if_id = rta_getattr_u32(tb[XFRMA_IF_ID]);
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "if_id %#x", if_id);
+		fprintf(fp, "%s", _SL_);
+	}
+	if (tb[XFRMA_TFCPAD]) {
+		__u32 tfcpad = rta_getattr_u32(tb[XFRMA_TFCPAD]);
+
+		if (prefix)
+			fputs(prefix, fp);
+		fprintf(fp, "tfcpad %u", tfcpad);
+		fprintf(fp, "%s", _SL_);
+	}
+}
+
+static int xfrm_selector_iszero(struct xfrm_selector *s)
+{
+	struct xfrm_selector s0 = {};
+
+	return (memcmp(&s0, s, sizeof(s0)) == 0);
+}
+
+static void xfrm_sec_ctx_print(FILE *fp, struct rtattr *attr)
+{
+	struct xfrm_user_sec_ctx *sctx;
+
+	fprintf(fp, "\tsecurity context ");
+
+	if (RTA_PAYLOAD(attr) < sizeof(*sctx))
+		fprintf(fp, "(ERROR truncated)");
+
+	sctx = RTA_DATA(attr);
+	fprintf(fp, "%.*s %s", sctx->ctx_len, (char *)(sctx + 1), _SL_);
+}
+
+void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo,
+			    struct rtattr *tb[], FILE *fp, const char *prefix,
+			    const char *title, bool nokeys)
+{
+	char buf[STRBUF_SIZE] = {};
+	int force_spi = xfrm_xfrmproto_is_ipsec(xsinfo->id.proto);
+
+	xfrm_id_info_print(&xsinfo->saddr, &xsinfo->id, xsinfo->mode,
+			   xsinfo->reqid, xsinfo->family, force_spi, fp,
+			   prefix, title);
+
+	if (prefix)
+		strlcat(buf, prefix, sizeof(buf));
+	strlcat(buf, "\t", sizeof(buf));
+
+	fputs(buf, fp);
+	fprintf(fp, "replay-window %u ", xsinfo->replay_window);
+	if (show_stats > 0)
+		fprintf(fp, "seq 0x%08u ", xsinfo->seq);
+	if (show_stats > 0 || xsinfo->flags) {
+		__u8 flags = xsinfo->flags;
+
+		fprintf(fp, "flag ");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOECN, "noecn");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_DECAP_DSCP, "decap-dscp");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOPMTUDISC, "nopmtudisc");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_WILDRECV, "wildrecv");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ICMP, "icmp");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_AF_UNSPEC, "af-unspec");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ALIGN4, "align4");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_ESN, "esn");
+		if (flags)
+			fprintf(fp, "%x", flags);
+	}
+	if (show_stats > 0 && tb[XFRMA_SA_EXTRA_FLAGS]) {
+		__u32 extra_flags = rta_getattr_u32(tb[XFRMA_SA_EXTRA_FLAGS]);
+
+		fprintf(fp, "extra_flag ");
+		XFRM_FLAG_PRINT(fp, extra_flags,
+				XFRM_SA_XFLAG_DONT_ENCAP_DSCP,
+				"dont-encap-dscp");
+		XFRM_FLAG_PRINT(fp, extra_flags,
+				XFRM_SA_XFLAG_OSEQ_MAY_WRAP,
+				"oseq-may-wrap");
+		if (extra_flags)
+			fprintf(fp, "%x", extra_flags);
+	}
+	if (show_stats > 0)
+		fprintf(fp, " (0x%s)", strxf_mask8(xsinfo->flags));
+	fprintf(fp, "%s", _SL_);
+
+	xfrm_xfrma_print(tb, xsinfo->family, fp, buf, nokeys);
+
+	if (!xfrm_selector_iszero(&xsinfo->sel)) {
+		char sbuf[STRBUF_SIZE];
+
+		memcpy(sbuf, buf, sizeof(sbuf));
+		strlcat(sbuf, "sel ", sizeof(sbuf));
+
+		xfrm_selector_print(&xsinfo->sel, xsinfo->family, fp, sbuf);
+	}
+
+	if (show_stats > 0) {
+		xfrm_lifetime_print(&xsinfo->lft, &xsinfo->curlft, fp, buf);
+		xfrm_stats_print(&xsinfo->stats, fp, buf);
+	}
+
+	if (tb[XFRMA_SEC_CTX])
+		xfrm_sec_ctx_print(fp, tb[XFRMA_SEC_CTX]);
+}
+
+void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo,
+			    struct rtattr *tb[], FILE *fp, const char *prefix,
+			    const char *title)
+{
+	char buf[STRBUF_SIZE] = {};
+
+	xfrm_selector_print(&xpinfo->sel, preferred_family, fp, title);
+
+	if (tb[XFRMA_SEC_CTX])
+		xfrm_sec_ctx_print(fp, tb[XFRMA_SEC_CTX]);
+
+	if (prefix)
+		strlcat(buf, prefix, sizeof(buf));
+	strlcat(buf, "\t", sizeof(buf));
+
+	fputs(buf, fp);
+	if (xpinfo->dir >= XFRM_POLICY_MAX) {
+		xpinfo->dir -= XFRM_POLICY_MAX;
+		fprintf(fp, "socket ");
+	} else
+		fprintf(fp, "dir ");
+
+	switch (xpinfo->dir) {
+	case XFRM_POLICY_IN:
+		fprintf(fp, "in");
+		break;
+	case XFRM_POLICY_OUT:
+		fprintf(fp, "out");
+		break;
+	case XFRM_POLICY_FWD:
+		fprintf(fp, "fwd");
+		break;
+	default:
+		fprintf(fp, "%u", xpinfo->dir);
+		break;
+	}
+	fprintf(fp, " ");
+
+	switch (xpinfo->action) {
+	case XFRM_POLICY_ALLOW:
+		if (show_stats > 0)
+			fprintf(fp, "action allow ");
+		break;
+	case XFRM_POLICY_BLOCK:
+		fprintf(fp, "action block ");
+		break;
+	default:
+		fprintf(fp, "action %u ", xpinfo->action);
+		break;
+	}
+
+	if (show_stats)
+		fprintf(fp, "index %u ", xpinfo->index);
+	fprintf(fp, "priority %u ", xpinfo->priority);
+
+	if (tb[XFRMA_POLICY_TYPE]) {
+		struct xfrm_userpolicy_type *upt;
+
+		fprintf(fp, "ptype ");
+
+		if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt))
+			fprintf(fp, "(ERROR truncated)");
+
+		upt = RTA_DATA(tb[XFRMA_POLICY_TYPE]);
+		fprintf(fp, "%s ", strxf_ptype(upt->type));
+	}
+
+	if (show_stats > 0)
+		fprintf(fp, "share %s ", strxf_share(xpinfo->share));
+
+	if (show_stats > 0 || xpinfo->flags) {
+		__u8 flags = xpinfo->flags;
+
+		fprintf(fp, "flag ");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_LOCALOK, "localok");
+		XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_ICMP, "icmp");
+		if (flags)
+			fprintf(fp, "%x", flags);
+	}
+	if (show_stats > 0)
+		fprintf(fp, " (0x%s)", strxf_mask8(xpinfo->flags));
+	fprintf(fp, "%s", _SL_);
+
+	if (show_stats > 0)
+		xfrm_lifetime_print(&xpinfo->lft, &xpinfo->curlft, fp, buf);
+
+	xfrm_xfrma_print(tb, xpinfo->sel.family, fp, buf, false);
+}
+
+int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
+		  int loose, int *argcp, char ***argvp)
+{
+	int argc = *argcp;
+	char **argv = *argvp;
+	inet_prefix dst = {};
+	inet_prefix src = {};
+
+	while (1) {
+		if (strcmp(*argv, "src") == 0) {
+			NEXT_ARG();
+
+			get_prefix(&src, *argv, preferred_family);
+			if (src.family == AF_UNSPEC)
+				invarg("value after \"src\" has an unrecognized address family", *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("value after \"dst\" has an unrecognized address family", *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) {
+			int ret;
+
+			NEXT_ARG();
+
+			ret = xfrm_xfrmproto_getbyname(*argv);
+			if (ret < 0)
+				invarg("XFRM-PROTO value is invalid", *argv);
+
+			id->proto = (__u8)ret;
+
+			filter.id_proto_mask = XFRM_FILTER_MASK_FULL;
+
+		} else if (strcmp(*argv, "spi") == 0) {
+			NEXT_ARG();
+			if (get_be32(&id->spi, *argv, 0))
+				invarg("SPI value is invalid", *argv);
+
+			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 values after \"src\" and \"dst\"", *argv);
+
+	if (id->spi && id->proto) {
+		if (xfrm_xfrmproto_is_ro(id->proto)) {
+			fprintf(stderr, "\"spi\" is invalid with XFRM-PROTO value \"%s\"\n",
+				strxf_xfrmproto(id->proto));
+			exit(1);
+		} else if (id->proto == IPPROTO_COMP && ntohl(id->spi) >= 0x10000) {
+			fprintf(stderr, "SPI value is too large with XFRM-PROTO value \"%s\"\n",
+				strxf_xfrmproto(id->proto));
+			exit(1);
+		}
+	}
+
+	if (loose == 0 && id->proto == 0)
+		missarg("XFRM-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 = XFRM_MODE_TRANSPORT;
+	else if (matches(*argv, "tunnel") == 0)
+		*mode = XFRM_MODE_TUNNEL;
+	else if (matches(*argv, "ro") == 0)
+		*mode = XFRM_MODE_ROUTEOPTIMIZATION;
+	else if (matches(*argv, "in_trigger") == 0)
+		*mode = XFRM_MODE_IN_TRIGGER;
+	else if (matches(*argv, "beet") == 0)
+		*mode = XFRM_MODE_BEET;
+	else
+		invarg("MODE value is invalid", *argv);
+
+	*argcp = argc;
+	*argvp = argv;
+
+	return 0;
+}
+
+int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp)
+{
+	int argc = *argcp;
+	char **argv = *argvp;
+
+	if (strcmp(*argv, "espinudp-nonike") == 0)
+		*type = UDP_ENCAP_ESPINUDP_NON_IKE;
+	else if (strcmp(*argv, "espinudp") == 0)
+		*type = UDP_ENCAP_ESPINUDP;
+	else if (strcmp(*argv, "espintcp") == 0)
+		*type = TCP_ENCAP_ESPINTCP;
+	else
+		invarg("ENCAP-TYPE value 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 value 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;
+	char *sportp = NULL;
+	char *dportp = NULL;
+	char *typep = NULL;
+	char *codep = NULL;
+	char *grekey = NULL;
+
+	while (1) {
+		if (strcmp(*argv, "proto") == 0) {
+			__u8 upspec;
+
+			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("PROTO value is invalid", *argv);
+				}
+			}
+			sel->proto = upspec;
+
+			filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL;
+
+		} else if (strcmp(*argv, "sport") == 0) {
+			sportp = *argv;
+
+			NEXT_ARG();
+
+			if (get_be16(&sel->sport, *argv, 0))
+				invarg("value after \"sport\" is invalid", *argv);
+			if (sel->sport)
+				sel->sport_mask = ~((__u16)0);
+
+			filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
+
+		} else if (strcmp(*argv, "dport") == 0) {
+			dportp = *argv;
+
+			NEXT_ARG();
+
+			if (get_be16(&sel->dport, *argv, 0))
+				invarg("value after \"dport\" is invalid", *argv);
+			if (sel->dport)
+				sel->dport_mask = ~((__u16)0);
+
+			filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
+
+		} else if (strcmp(*argv, "type") == 0) {
+			typep = *argv;
+
+			NEXT_ARG();
+
+			if (get_u16(&sel->sport, *argv, 0) ||
+			    (sel->sport & ~((__u16)0xff)))
+				invarg("value after \"type\" is invalid", *argv);
+			sel->sport = htons(sel->sport);
+			sel->sport_mask = ~((__u16)0);
+
+			filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
+
+
+		} else if (strcmp(*argv, "code") == 0) {
+			codep = *argv;
+
+			NEXT_ARG();
+
+			if (get_u16(&sel->dport, *argv, 0) ||
+			    (sel->dport & ~((__u16)0xff)))
+				invarg("value after \"code\" is invalid", *argv);
+			sel->dport = htons(sel->dport);
+			sel->dport_mask = ~((__u16)0);
+
+			filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
+
+		} else if (strcmp(*argv, "key") == 0) {
+			unsigned int uval;
+
+			grekey = *argv;
+
+			NEXT_ARG();
+
+			if (strchr(*argv, '.'))
+				uval = htonl(get_addr32(*argv));
+			else {
+				if (get_unsigned(&uval, *argv, 0) < 0) {
+					fprintf(stderr, "value after \"key\" is invalid\n");
+					exit(-1);
+				}
+			}
+
+			sel->sport = htons(uval >> 16);
+			sel->dport = htons(uval & 0xffff);
+			sel->sport_mask = ~((__u16)0);
+			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");
+	if (sportp || dportp) {
+		switch (sel->proto) {
+		case IPPROTO_TCP:
+		case IPPROTO_UDP:
+		case IPPROTO_SCTP:
+		case IPPROTO_DCCP:
+		case IPPROTO_IP: /* to allow shared SA for different protocols */
+			break;
+		default:
+			fprintf(stderr, "\"sport\" and \"dport\" are invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
+			exit(1);
+		}
+	}
+	if (typep || codep) {
+		switch (sel->proto) {
+		case IPPROTO_ICMP:
+		case IPPROTO_ICMPV6:
+		case IPPROTO_MH:
+			break;
+		default:
+			fprintf(stderr, "\"type\" and \"code\" are invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
+			exit(1);
+		}
+	}
+	if (grekey) {
+		switch (sel->proto) {
+		case IPPROTO_GRE:
+			break;
+		default:
+			fprintf(stderr, "\"key\" is invalid with PROTO value \"%s\"\n", strxf_proto(sel->proto));
+			exit(1);
+		}
+	}
+
+	*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 = {};
+	char *upspecp = NULL;
+
+	while (1) {
+		if (strcmp(*argv, "src") == 0) {
+			NEXT_ARG();
+
+			get_prefix(&src, *argv, preferred_family);
+			if (src.family == AF_UNSPEC)
+				invarg("value after \"src\" has an unrecognized address family", *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("value after \"dst\" has an unrecognized address family", *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, "dev") == 0) {
+			int ifindex;
+
+			NEXT_ARG();
+
+			if (strcmp(*argv, "none") == 0)
+				ifindex = 0;
+			else {
+				ifindex = ll_name_to_index(*argv);
+				if (ifindex <= 0)
+					invarg("DEV value is invalid", *argv);
+			}
+			sel->ifindex = ifindex;
+
+			filter.sel_dev_mask = XFRM_FILTER_MASK_FULL;
+
+		} else {
+			if (upspecp) {
+				PREV_ARG(); /* back track */
+				break;
+			} else {
+				upspecp = *argv;
+				xfrm_selector_upspec_parse(sel, &argc, &argv);
+			}
+		}
+
+		if (!NEXT_ARG_OK())
+			break;
+
+		NEXT_ARG();
+	}
+
+	if (src.family && dst.family && (src.family != dst.family))
+		invarg("the same address family is required between values after \"src\" and \"dst\"", *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("value after \"time-soft\" 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("value after \"time-hard\" 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("value after \"time-use-soft\" 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("value after \"time-use-hard\" is invalid", *argv);
+	} else if (strcmp(*argv, "byte-soft") == 0) {
+		NEXT_ARG();
+		ret = get_u64(&lft->soft_byte_limit, *argv, 0);
+		if (ret)
+			invarg("value after \"byte-soft\" is invalid", *argv);
+	} else if (strcmp(*argv, "byte-hard") == 0) {
+		NEXT_ARG();
+		ret = get_u64(&lft->hard_byte_limit, *argv, 0);
+		if (ret)
+			invarg("value after \"byte-hard\" is invalid", *argv);
+	} else if (strcmp(*argv, "packet-soft") == 0) {
+		NEXT_ARG();
+		ret = get_u64(&lft->soft_packet_limit, *argv, 0);
+		if (ret)
+			invarg("value after \"packet-soft\" is invalid", *argv);
+	} else if (strcmp(*argv, "packet-hard") == 0) {
+		NEXT_ARG();
+		ret = get_u64(&lft->hard_packet_limit, *argv, 0);
+		if (ret)
+			invarg("value after \"packet-hard\" is invalid", *argv);
+	} else
+		invarg("LIMIT value 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, "monitor") == 0)
+		return do_xfrm_monitor(argc-1, argv+1);
+	else if (matches(*argv, "help") == 0) {
+		usage();
+		fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv);
+		exit(-1);
+	}
+	usage();
+}
-- 
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