libipsec and IPsec related apps. (and some KAME related man pages)

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project

7 files changed, 1868 insertions, 0 deletions

diff --git a/usr.sbin/rrenumd/Makefile b/usr.sbin/rrenumd/Makefile
new file mode 100644
index 0000000..990ddab
--- /dev/null
+++ b/usr.sbin/rrenumd/Makefile
@@ -0,0 +1,41 @@
+# Copyright (c) 1996 WIDE Project. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modifications, are permitted provided that the above copyright notice
+# and this paragraph are duplicated in all such forms and that any
+# documentation, advertising materials, and other materials related to
+# such distribution and use acknowledge that the software was developed
+# by the WIDE Project, Japan. The name of the Project may not be used to
+# endorse or promote products derived from this software without
+# specific prior written permission. THIS SOFTWARE IS PROVIDED ``AS IS''
+# AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
+# LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE.
+# $FreeBSD$
+
+PROG=	rrenumd
+SRCS=	rrenumd.c  parser.y lexer.l
+YFLAGS+=	-d
+
+CC=	gcc
+
+CFLAGS+= -DINET6 -DIPSEC -I${.OBJDIR}
+LDADD+=	-lipsec -lcompat
+DPADD+=	${LIBIPSEC} ${LIBCOMPAT}
+LDADD+= -ll -ly
+DPADD+=	${LIBL} ${LIBY}
+
+MAN5=	rrenumd.conf.5
+MAN8=	rrenumd.8
+
+SRCS+=y.tab.h
+y.tab.h: parser.y
+
+.if defined(YACCDEBUG)
+CFLAGS+= -DYYDEBUG
+YFLAGS+= -t -v
+.endif
+
+.include <bsd.prog.mk>
+
+CLEANFILES+=	y.tab.h
diff --git a/usr.sbin/rrenumd/lexer.l b/usr.sbin/rrenumd/lexer.l
new file mode 100644
index 0000000..80429af
--- /dev/null
+++ b/usr.sbin/rrenumd/lexer.l
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+%{
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+
+#include <string.h>
+
+#include <net/if.h>
+#include <net/if_var.h>
+
+#include <netinet/in.h>
+#include <netinet/in_var.h>
+#include <netinet/icmp6.h>
+#include "y.tab.h"
+
+int lineno = 1;
+
+#define	LINEBUF_SIZE 1000
+char linebuf[LINEBUF_SIZE];
+%}
+
+/* common section */
+nl		\n
+ws		[ \t]+
+digit		[0-9]
+letter		[0-9A-Za-z]
+hexdigit	[0-9A-Fa-f]
+special		[()+\|\?\*,]
+dot		\.
+hyphen		\-
+colon		\:
+slash		\/
+bcl		\{
+ecl		\}
+semi		\;
+usec		{dot}{digit}{1,6}
+comment		\#.*
+qstring		\"[^"]*\"
+decstring	{digit}+
+hexpair		{hexdigit}{hexdigit}
+hexstring	0[xX]{hexdigit}+
+octetstring	{octet}({dot}{octet})+
+ipv4addr	{digit}{1,3}({dot}{digit}{1,3}){0,3}
+ipv6addr	{hexdigit}{0,4}({colon}{hexdigit}{0,4}){2,7}
+ipaddrmask	{slash}{digit}{1,3}
+keyword		{letter}{letter}+
+name		{letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
+hostname	{name}(({dot}{name})+{dot}?)?
+
+timeval		{digit}{0,2}
+days		d{timeval}
+hours		h{timeval}
+minutes		m{timeval}
+seconds		s{timeval}
+
+mprefix		match_prefix|match-prefix
+uprefix		use_prefix|use-prefix
+
+%%
+	/* rrenumd keywords */
+debug		{
+			return(DEBUG_CMD);
+		}
+dest		{
+			return(DEST_CMD);
+		}
+retry		{
+			return(RETRY_CMD);
+		}
+seqnum		{
+			return(SEQNUM_CMD);
+		}
+add		{
+			yylval.num = RPM_PCO_ADD;
+			return(ADD);
+		}
+change		{
+			yylval.num = RPM_PCO_CHANGE;
+			return(CHANGE);
+		 }
+setglobal	{
+			yylval.num = RPM_PCO_SETGLOBAL;
+			return(SETGLOBAL);
+		}
+{mprefix}	{
+			return(MATCH_PREFIX_CMD);
+		}
+maxlen		{
+			return(MAXLEN_CMD);
+		}
+minlen		{
+			return(MINLEN_CMD);
+		}
+{uprefix}	{
+			return(USE_PREFIX_CMD);
+		}
+keeplen		{
+			return(KEEPLEN_CMD);
+		}
+
+vltime		{
+			return(VLTIME_CMD);
+		}
+pltime		{
+			return(PLTIME_CMD);
+		}
+raf_onlink	{
+			return(RAF_ONLINK_CMD);
+		}
+raf_auto	{
+			return(RAF_AUTO_CMD);
+		}
+rrf_decrvalid	{
+			return(RAF_DECRVALID_CMD);
+		}
+rrf_decrprefd	{
+			return(RAF_DECRPREFD_CMD);
+		}
+{days}		{
+			yytext++;
+			yylval.num = atoi(yytext);
+			return(DAYS);
+		}
+{hours}		{
+			yytext++;
+			yylval.num = atoi(yytext);
+			return(HOURS);
+		}
+{minutes}	{
+			yytext++;
+			yylval.num = atoi(yytext);
+			return(MINUTES);
+		}
+{seconds}	{
+			yytext++;
+			yylval.num = atoi(yytext);
+			return(SECONDS);
+		}
+infinity	{
+			return(INFINITY);
+		}
+
+on		{
+			yylval.num = 1;
+			return(ON);
+		}
+off		{
+			yylval.num = 0;
+			return(OFF);
+		}
+
+	/* basic rules */
+{ws}		;
+{nl}		{
+			lineno++;
+		}
+{semi}		{
+			return EOS;
+		}
+{bcl}		{
+			return BCL;
+		}
+{ecl}		{
+			return ECL;
+		}
+{qstring}	{
+			yylval.cs.cp = yytext;
+			yylval.cs.len = yyleng;
+			return QSTRING;
+		}
+{decstring}	{
+			yylval.cs.cp = yytext;
+			yylval.cs.len = yyleng;
+			return DECSTRING;
+		}
+{name}		{
+			yylval.cs.cp = yytext;
+			yylval.cs.len = yyleng;
+			return NAME;
+		}
+{ipv6addr}	{
+			memset(&yylval.addr6, 0, sizeof(struct in6_addr));
+			if (inet_pton(AF_INET6, yytext,
+				      &yylval.addr6) == 1) {
+				return IPV6ADDR;
+			} else {
+				return ERROR;
+			}
+		}
+{ipaddrmask}	{
+			yytext++;
+			yylval.num = atoi(yytext);
+			return(PREFIXLEN);
+		}
+{hostname}	{
+			yylval.cs.cp = yytext;
+			yylval.cs.len = yyleng;
+			return HOSTNAME;
+		}
+%%
+
+int parse(FILE **fp)
+{
+	yyin = *fp;
+
+	if(yyparse())
+		return(-1);
+
+	return(0);
+
+}
+
+void
+yyerror(const char *s)
+{
+	printf("%s: at %s in line %d\n", s, yytext, lineno);
+}
diff --git a/usr.sbin/rrenumd/parser.y b/usr.sbin/rrenumd/parser.y
new file mode 100644
index 0000000..eecc7bb
--- /dev/null
+++ b/usr.sbin/rrenumd/parser.y
@@ -0,0 +1,637 @@
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+%{
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+
+#include <net/if.h>
+#include <net/if_var.h>
+
+#include <netinet/in.h>
+#include <netinet/in_var.h>
+#include <netinet/icmp6.h>
+
+#include <netdb.h>
+#include <string.h>
+
+#include "rrenumd.h"
+
+struct config_is_set {
+	u_short	cis_dest : 1;
+} cis;
+
+struct	dst_list *dl_head;
+struct	payload_list *pl_head, ple_cur;
+u_int	retry;
+char	errbuf[LINE_MAX];
+
+extern int	lineno;
+extern void	yyerror __P((const char *s));
+static struct	payload_list * pllist_lookup __P((int seqnum));
+static void	pllist_enqueue __P((struct payload_list *pl_entry));
+
+#define	MAX_RETRYNUM 10 /* upper limit of retry in this rrenumd program */
+#define	MAX_SEQNUM 256 /* upper limit of seqnum in this rrenumd program */
+#define	NOSPEC	-1
+
+%}
+
+%union {
+	u_long	num;
+	struct {
+		char 	*cp;
+		int	len;
+	} cs;
+	struct	in_addr addr4;
+	struct	in6_addr addr6;
+	struct {
+		struct	in6_addr addr;
+		u_char	plen;
+	} prefix;
+	struct	dst_list *dl;
+	struct	payload_list *pl;
+	struct	sockaddr *sa;
+}
+
+%token <num> ADD CHANGE SETGLOBAL
+%token DEBUG_CMD DEST_CMD RETRY_CMD SEQNUM_CMD
+%token MATCH_PREFIX_CMD MAXLEN_CMD MINLEN_CMD
+%token USE_PREFIX_CMD KEEPLEN_CMD
+%token VLTIME_CMD PLTIME_CMD
+%token RAF_ONLINK_CMD RAF_AUTO_CMD RAF_DECRVALID_CMD RAF_DECRPREFD_CMD
+%token <num> DAYS HOURS MINUTES SECONDS INFINITY
+%token <num> ON OFF
+%token BCL ECL EOS ERROR
+%token <cs> NAME HOSTNAME QSTRING DECSTRING
+%token <addr4> IPV4ADDR
+%token <addr6> IPV6ADDR
+%token <num> PREFIXLEN
+
+%type <num> retrynum seqnum rrenum_cmd
+%type <num> prefixlen maxlen minlen keeplen vltime pltime
+%type <num> lifetime days hours minutes seconds
+%type <num> decstring
+%type <num> raf_onlink raf_auto raf_decrvalid raf_decrprefd flag
+%type <dl> dest_addrs dest_addr sin6
+%type <pl> rrenum_statement
+%type <cs> ifname
+%type <prefix> prefixval
+
+%%
+config:
+		/* empty */
+	| 	statements
+	;
+
+statements:
+		statement
+	| 	statements statement
+	;
+
+statement:
+		debug_statement
+	|	destination_statement
+	|	rrenum_statement_without_seqnum
+	|	rrenum_statement_with_seqnum
+	|	error EOS
+		{
+			yyerrok;
+		}
+	|	EOS
+	;
+
+debug_statement:
+		DEBUG_CMD flag EOS
+		{
+#ifdef YYDEBUG
+			yydebug = $2;
+#endif /* YYDEBUG */
+		}
+	;
+
+destination_statement:
+		DEST_CMD dest_addrs retrynum EOS
+		{
+			dl_head = $2;
+			retry = $3;
+		}
+	;
+
+dest_addrs:
+		dest_addr
+	|	dest_addrs dest_addr
+		{
+			$2->dl_next = $1;
+			$$ = $2;
+		}
+	;
+
+dest_addr :
+		sin6
+		{
+			with_v6dest = 1;
+		}
+	|	sin6 ifname
+		{
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)$1->dl_dst;
+			sin6->sin6_scope_id = if_nametoindex($2.cp);
+			with_v6dest = 1;
+			$$ = $1;
+		}
+	|	HOSTNAME
+		{
+			struct sockaddr_storage *ss;
+			struct addrinfo hints, *res;
+			int error;
+
+			memset(&hints, 0, sizeof(hints));
+			hints.ai_flags = AI_CANONNAME;
+			hints.ai_family = AF_INET6;
+			hints.ai_socktype = SOCK_RAW;
+			hints.ai_protocol = 0;
+			error = getaddrinfo($1.cp, 0, &hints, &res);
+			if (error) {
+				sprintf(errbuf, "name resolution failed for %s"
+				":%s", $1, gai_strerror(error));
+				yyerror(errbuf);
+			}
+			ss = (struct sockaddr_storage *)malloc(sizeof(*ss));
+			memset(ss, 0, sizeof(*ss));
+			memcpy(ss, res->ai_addr, res->ai_addr->sa_len);
+			freeaddrinfo(res);
+
+			$$ = (struct dst_list *)
+			     malloc(sizeof(struct dst_list));
+			memset($$, 0, sizeof(struct dst_list));
+			$$->dl_dst = (struct sockaddr *)ss;
+		}
+	;
+
+sin6:
+		IPV6ADDR
+		{
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)malloc(sizeof(*sin6));
+			memset(sin6, 0, sizeof(*sin6));
+			sin6->sin6_len = sizeof(*sin6);
+			sin6->sin6_family = AF_INET6;
+			sin6->sin6_addr = $1;
+
+			$$ = (struct dst_list *)
+			     malloc(sizeof(struct dst_list));
+			memset($$, 0, sizeof(struct dst_list));
+			$$->dl_dst = (struct sockaddr *)sin6;
+		}
+
+ifname:
+		NAME
+		{
+			$$.cp = strdup($1.cp);
+			$$.len = $1.len;
+		}
+	|	QSTRING
+		{
+			$1.cp[$1.len - 1] = 0;
+			$$.cp = strdup(&$1.cp[1]);
+			$$.len = $1.len - 2;
+		}
+	;
+
+retrynum:
+		/* empty */
+		{
+			$$ = 2;
+		}
+	|	RETRY_CMD decstring
+		{
+			if ($2 > MAX_RETRYNUM)
+				$2 = MAX_RETRYNUM;
+			$$ = $2;
+		}
+	;
+
+rrenum_statement_with_seqnum:
+		SEQNUM_CMD seqnum
+		{
+			if (pllist_lookup($2)) {
+				sprintf(errbuf, "duplicate seqnum %d specified"
+					" at %d", $2, lineno);
+				yyerror(errbuf);
+			}
+		}
+		BCL rrenum_statement EOS ECL EOS
+		{
+			$5->pl_irr.rr_seqnum = $2;
+			pllist_enqueue($5);
+		}
+	;
+
+seqnum:
+		/* empty */
+		{
+			$$ = 0;
+		}
+	|	decstring
+		{
+			if ($1 > MAX_SEQNUM) {
+				sprintf(errbuf, "seqnum %d is illegal for this"
+					" program. should be between 0 and %d",
+					$1, MAX_SEQNUM);
+				yyerror(errbuf);
+			}
+			$$ = $1;
+		}
+	;
+
+rrenum_statement_without_seqnum:
+		rrenum_statement EOS
+		{
+			if (pllist_lookup(0)) {
+				sprintf(errbuf, "duplicate seqnum %d specified"
+					" at %d", 0, lineno);
+				yyerror(errbuf);
+			}
+			$1->pl_irr.rr_seqnum = 0;
+			pllist_enqueue($1);
+		}
+	;
+
+rrenum_statement:
+		match_prefix_definition use_prefix_definition
+		{
+			$$ = (struct payload_list *)
+			     malloc(sizeof(struct payload_list));
+			memcpy($$, &ple_cur, sizeof(ple_cur));
+		}
+	;
+
+match_prefix_definition:
+		rrenum_cmd MATCH_PREFIX_CMD prefixval maxlen minlen
+		{
+			struct icmp6_router_renum *irr;
+			struct rr_pco_match *rpm;
+
+			irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
+			rpm = (struct rr_pco_match *)(irr + 1);
+			memset(rpm, 0, sizeof(*rpm));
+
+			rpm->rpm_code = $1;
+			rpm->rpm_prefix = $3.addr;
+			rpm->rpm_matchlen = $3.plen;
+			rpm->rpm_maxlen = $4;
+			rpm->rpm_minlen = $5;
+		}
+	;
+
+rrenum_cmd:
+		/* empty */
+		{
+			$$ = RPM_PCO_ADD;
+		}
+	|	ADD
+	|	CHANGE
+	|	SETGLOBAL
+	;
+
+prefixval:
+		IPV6ADDR prefixlen
+		{
+			$$.addr = $1;
+			$$.plen = $2;
+		}
+	;
+
+prefixlen:
+		/* empty */
+		{
+			$$ = 64;
+		}
+	|	PREFIXLEN
+	;
+
+maxlen:
+		/* empty */
+		{
+			$$ = 128;
+		}
+	|	MAXLEN_CMD decstring
+		{
+			if ($2 > 128)
+				$2 = 128;
+			$$ = $2;
+		}
+	;
+
+minlen:
+		/* empty */
+		{
+			$$ = 0;
+		}
+	|	MINLEN_CMD decstring
+		{
+			if ($2 > 128)
+				$2 = 128;
+			$$ = $2;
+		}
+	;
+
+use_prefix_definition:
+		/* empty */
+		{
+			struct icmp6_router_renum *irr;
+			struct rr_pco_match *rpm;
+			struct rr_pco_use *rpu;
+
+			irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
+			rpm = (struct rr_pco_match *)(irr + 1);
+			rpu = (struct rr_pco_use *)(rpm + 1);
+			memset(rpu, 0, sizeof(*rpu));
+		}
+	|	USE_PREFIX_CMD prefixval keeplen use_prefix_values
+		{
+			struct icmp6_router_renum *irr;
+			struct rr_pco_match *rpm;
+			struct rr_pco_use *rpu;
+
+			irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
+			rpm = (struct rr_pco_match *)(irr + 1);
+			rpu = (struct rr_pco_use *)(rpm + 1);
+
+			rpu->rpu_prefix = $2.addr;
+			rpu->rpu_uselen = $2.plen;
+			rpu->rpu_keeplen = $3;
+		}
+	;
+
+use_prefix_values:
+		/* empty */
+		{
+			struct icmp6_router_renum *irr;
+			struct rr_pco_match *rpm;
+			struct rr_pco_use *rpu;
+
+			irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
+			rpm = (struct rr_pco_match *)(irr + 1);
+			rpu = (struct rr_pco_use *)(rpm + 1);
+			memset(rpu, 0, sizeof(*rpu));
+
+			rpu->rpu_vltime = DEF_VLTIME;
+			rpu->rpu_pltime = DEF_PLTIME;
+			rpu->rpu_ramask = 0;
+			rpu->rpu_flags = 0;
+		}
+	|	BCL vltime pltime raf_onlink raf_auto raf_decrvalid raf_decrprefd ECL
+		{
+			struct icmp6_router_renum *irr;
+			struct rr_pco_match *rpm;
+			struct rr_pco_use *rpu;
+
+			irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
+			rpm = (struct rr_pco_match *)(irr + 1);
+			rpu = (struct rr_pco_use *)(rpm + 1);
+			memset(rpu, 0, sizeof(*rpu));
+
+			rpu->rpu_vltime = $2;
+			rpu->rpu_pltime = $3;
+			if ($4 == NOSPEC)
+				rpu->rpu_ramask &=
+					~ICMP6_RR_PCOUSE_RAFLAGS_ONLINK;
+			else {
+				rpu->rpu_ramask |=
+					ICMP6_RR_PCOUSE_RAFLAGS_ONLINK;
+				if ($4 == ON)
+					rpu->rpu_raflags |=
+						ICMP6_RR_PCOUSE_RAFLAGS_ONLINK;
+				else
+					rpu->rpu_raflags &=
+						~ICMP6_RR_PCOUSE_RAFLAGS_ONLINK;
+			}
+			if ($5 == NOSPEC)
+				rpu->rpu_ramask &=
+					ICMP6_RR_PCOUSE_RAFLAGS_AUTO;
+			else {
+				rpu->rpu_ramask |=
+					ICMP6_RR_PCOUSE_RAFLAGS_AUTO;
+				if ($5 == ON)
+					rpu->rpu_raflags |=
+						ICMP6_RR_PCOUSE_RAFLAGS_AUTO;
+				else
+					rpu->rpu_raflags &=
+						~ICMP6_RR_PCOUSE_RAFLAGS_AUTO;
+			}
+			rpu->rpu_flags = 0;
+			if ($6 == ON)
+				rpu->rpu_flags |=
+					ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME;
+			if ($7 == ON)
+				rpu->rpu_flags |=
+					ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME;
+		}
+	;
+
+keeplen:
+		/* empty */
+		{
+			$$ = 0;
+		}
+	|	KEEPLEN_CMD decstring
+		{
+			if ($2 > 128)
+				$2 = 128;
+			$$ = $2;
+		}
+	;
+
+
+vltime:
+		/* empty */
+		{
+			$$ = DEF_VLTIME;
+		}
+	|	VLTIME_CMD lifetime
+		{
+			$$ = htonl($2);
+		}
+	;
+
+pltime:
+		/* empty */
+		{
+			$$ = DEF_PLTIME;
+		}
+	|	PLTIME_CMD lifetime
+		{
+			$$ = htonl($2);
+		}
+
+raf_onlink:
+		/* empty */
+		{
+			$$ = NOSPEC;
+		}
+	|	RAF_ONLINK_CMD flag
+		{
+			$$ = $2;
+		}
+	;
+
+raf_auto:
+		/* empty */
+		{
+			$$ = NOSPEC;
+		}
+	|	RAF_AUTO_CMD flag
+		{
+			$$ = $2;
+		}
+	;
+
+raf_decrvalid:
+		/* empty */
+		{
+			$$ = NOSPEC;
+		}
+	|	RAF_DECRVALID_CMD flag
+		{
+			$$ = $2;
+		}
+	;
+
+raf_decrprefd:
+		/* empty */
+		{
+			$$ = NOSPEC;
+		}
+	|	RAF_DECRPREFD_CMD flag
+		{
+			$$ = $2;
+		}
+	;
+
+flag:
+		ON
+	|	OFF
+	;
+
+lifetime:
+		decstring
+	|	INFINITY
+		{
+			$$ = 0xffffffff;
+		}
+	|	days hours minutes seconds
+		{
+			int d, h, m, s;
+
+			d = $1 * 24 * 60 * 60;
+			h = $2 * 60 * 60;
+			m = $3 * 60;
+			s = $4;
+			$$ = d + h + m + s;
+		}
+	;
+
+days:
+		/* empty */
+		{
+			$$ = 0;
+		}
+	|	DAYS
+	;
+
+hours:
+		/* empty */
+		{
+			$$ = 0;
+		}
+	|	HOURS
+	;
+
+minutes:
+		/* empty */
+		{
+			$$ = 0;
+		}
+	|	MINUTES
+	;
+
+seconds:
+		/* empty */
+		{
+			$$ = 0;
+		}
+	|	SECONDS
+	;
+
+decstring:
+		DECSTRING
+		{
+			int dval;
+
+			dval = atoi($1.cp);
+			$$ = dval;
+		}
+	;
+
+%%
+
+static struct payload_list *
+pllist_lookup(int seqnum)
+{
+	struct payload_list *pl;
+	for (pl = pl_head; pl && pl->pl_irr.rr_seqnum != seqnum;
+	     pl = pl->pl_next)
+		continue;
+	return (pl);
+}
+
+static void
+pllist_enqueue(struct payload_list *pl_entry)
+{
+	struct payload_list *pl, *pl_last;
+	if (pl_head == NULL) {
+		pl_head = pl_entry;
+		return;
+	}
+	for (pl = pl_head;
+	     pl && pl->pl_irr.rr_seqnum < pl_entry->pl_irr.rr_seqnum;
+	     pl_last = pl, pl = pl->pl_next)
+		continue;
+	pl_last->pl_next = pl_entry;
+
+	return;
+}
diff --git a/usr.sbin/rrenumd/rrenumd.8 b/usr.sbin/rrenumd/rrenumd.8
new file mode 100644
index 0000000..aa7ae6b
--- /dev/null
+++ b/usr.sbin/rrenumd/rrenumd.8
@@ -0,0 +1,95 @@
+.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the project nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $Id: rrenumd.8,v 1.1.1.1 1999/08/08 23:31:38 itojun Exp $
+.\"     $FreeBSD$
+.\"
+.Dd Sep 7, 1998
+.Dt RRENUMD 8
+.Os KAME
+.Sh NAME
+.Nm rrenumd
+.Nd router renumbering daemon
+.Sh SYNOPSIS
+.Nm
+.Oo
+.Fl c Ar conf_file | Fl s
+.Oc
+.Op Fl P Ar policy
+.Op Fl df
+.Sh DESCRIPTION
+.Nm Rrenumd
+assigns prefixes to subnets inside the site, or renumbers them.
+.Pp
+The program will daemonize itself on invocation.
+It reads configuration information from standard input if
+.Fl s
+is specified, or from
+.Ar conf_file
+if
+.Fl c Ar conf_file
+is specified.
+.Pp
+The contents of configuration information are described in
+.Xr rrenumd.conf 5 .
+.Pp
+After successful configuration,
+.Nm
+sends router renumbering
+messages periodically to configured destinations.
+Messages contain prefixes configured to be renumbered.
+.Bl -tag -width indent
+.\"
+.It Fl d
+Debug mode.
+.It Fl f
+Foreground mode.
+Do not become daemon.
+.It Fl s
+Script mode.
+Configuration information is obtained from standard input.
+.It Fl P Ar policy
+.Ar policy
+specifies IPsec policy for the rrenumd session.
+For details please refer to
+.Xr ipsec 4
+and
+.Xr ipsec_set_policy 3 .
+.It Fl c Ar conf_file
+Specify a configuration file where configuration information is kept.
+.Sh RETURN VALUES
+The program exits with 0 on success, and non-zero on failures.
+.El
+.Sh SEE ALSO
+.Xr daemon 3
+.Xr rrenumd.conf 5 ,
+.Sh HISTORY
+The
+.Nm
+command first appeared in KAME IPv6 protocol stack kit.
+.\" .Sh BUGS
+.\" (to be written)
diff --git a/usr.sbin/rrenumd/rrenumd.c b/usr.sbin/rrenumd/rrenumd.c
new file mode 100644
index 0000000..ced5afc
--- /dev/null
+++ b/usr.sbin/rrenumd/rrenumd.c
@@ -0,0 +1,460 @@
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <sys/time.h>
+
+#include <string.h>
+
+#include <net/route.h>
+
+#include <netinet/in_systm.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/icmp6.h>
+
+#ifdef IPSEC
+#include <netinet6/ipsec.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <syslog.h>
+
+#include "rrenumd.h"
+
+#define	LL_ALLROUTERS "ff02::2"
+#define	SL_ALLROUTERS "ff05::2"
+
+#ifndef IN6_IS_SCOPE_LINKLOCAL
+#define	IN6_IS_SCOPE_LINKLOCAL(a)	\
+	((IN6_IS_ADDR_LINKLOCAL(a)) ||	\
+	 (IN6_IS_ADDR_MC_LINKLOCAL(a)))
+#endif /* IN6_IS_SCOPE_LINKLOCAL */
+
+struct flags {
+	u_long	debug : 1;
+	u_long	fg : 1;
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+	u_long	policy : 1;
+#endif /* IPSEC_POLICY_IPSEC */
+#endif /*IPSEC*/
+};
+
+struct	msghdr sndmhdr;
+struct	msghdr rcvmhdr;
+struct	sockaddr_in6 from;
+struct	sockaddr_in6 sin6_ll_allrouters;
+
+int	s6;
+int	with_v6dest;
+struct	in6_addr prefix; /* ADHOC */
+int	prefixlen = 64; /* ADHOC */
+
+extern int	parse(FILE **fp);
+
+/* Print usage. Don't call this after daemonized. */
+static void
+show_usage()
+{
+	fprintf(stderr, "usage: rrenumd [-c conf_file|-s] [-df"
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+		"] [-P policy"
+#endif /* IPSEC_POLICY_IPSEC */
+#endif /* IPSEC */
+		"]\n");
+	exit(1);
+}
+
+void
+init_sin6(struct sockaddr_in6 *sin6, const char *addr_ascii)
+{
+	memset(sin6, 0, sizeof(*sin6));
+	sin6->sin6_len = sizeof(*sin6);
+	sin6->sin6_family = AF_INET6;
+	if (inet_pton(AF_INET6, addr_ascii, &sin6->sin6_addr) != 1)
+		; /* XXX do something */
+}
+
+void
+init_globals()
+{
+	static struct iovec rcviov;
+	static u_char rprdata[4500]; /* maximal MTU of connected links */
+	static u_char rcvcmsgbuf[CMSG_SPACE(sizeof(struct in6_pktinfo)) +
+				 CMSG_SPACE(sizeof(int))];
+	static u_char sndcmsgbuf[CMSG_SPACE(sizeof(struct in6_pktinfo)) +
+				 CMSG_SPACE(sizeof(int))];
+
+	/* init ll_allrouters */
+	init_sin6(&sin6_ll_allrouters, LL_ALLROUTERS);
+
+	/* initialize msghdr for receiving packets */
+	rcviov.iov_base = (caddr_t)rprdata;
+	rcviov.iov_len = sizeof(rprdata);
+	rcvmhdr.msg_namelen = sizeof(struct sockaddr_in6);
+	rcvmhdr.msg_iov = &rcviov;
+	rcvmhdr.msg_iovlen = 1;
+	rcvmhdr.msg_control = (caddr_t)rcvcmsgbuf;
+	rcvmhdr.msg_controllen = sizeof(rcvcmsgbuf);
+
+	/* initialize msghdr for sending packets */
+	sndmhdr.msg_namelen = sizeof(struct sockaddr_in6);
+	sndmhdr.msg_iovlen = 1;
+	sndmhdr.msg_control = (caddr_t)sndcmsgbuf;
+	sndmhdr.msg_controllen = sizeof(sndcmsgbuf);
+}
+
+void
+config(FILE **fpp)
+{
+	struct payload_list *pl;
+	struct iovec *iov;
+	struct icmp6_router_renum *irr;
+	struct rr_pco_match *rpm;
+
+	if (parse(fpp) < 0) {
+		syslog(LOG_ERR, "<%s> parse failed", __FUNCTION__);
+		exit(1);
+	}
+
+	/* initialize fields not configured by parser */
+	for (pl = pl_head; pl; pl = pl->pl_next) {
+		iov = (struct iovec *)&pl->pl_sndiov;
+		irr = (struct icmp6_router_renum *)&pl->pl_irr;
+		rpm = (struct rr_pco_match *)&pl->pl_rpm;
+
+		irr->rr_type = ICMP6_ROUTER_RENUMBERING;
+		irr->rr_code = 0;
+		/*
+		 * now we don't support multiple PCOs in a rr message.
+		 * so segment number is not supported.
+		 */
+		/* TODO: rr flags config in parser */
+		irr->rr_flags |= ICMP6_RR_FLAGS_SPECSITE;
+		/* TODO: max delay config in parser */
+
+		/*
+		 * means only 1 use_prefix is contained as router-renum-05.txt.
+		 * now we don't support multiple PCOs in a rr message,
+		 * nor multiple use_prefix in one PCO.
+		 */
+		rpm->rpm_len = 4*1 +3;
+		rpm->rpm_ordinal = 0;
+		iov->iov_base = (caddr_t)irr;
+		iov->iov_len =  sizeof(struct icmp6_router_renum)
+			+ sizeof(struct rr_pco_match)
+			+ sizeof(struct rr_pco_use);
+	}
+}
+
+void
+sock6_open(struct flags *flags
+#ifdef IPSEC_POLICY_IPSEC
+	   , char *policy
+#endif /* IPSEC_POLICY_IPSEC */
+	   )
+{
+	struct icmp6_filter filt;
+	int on, optval;
+
+	if (with_v6dest == 0)
+		return;
+	if (with_v6dest &&
+	    (s6 = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6)) < 0) {
+		syslog(LOG_ERR, "<%s> socket(v6): %s", __FUNCTION__,
+		       strerror(errno));
+		exit(1);
+	}
+
+	/* join all routers multicast addresses, not necessary? */
+
+	/* set icmpv6 filter */
+	ICMP6_FILTER_SETBLOCKALL(&filt);
+	ICMP6_FILTER_SETPASS(ICMP6_ROUTER_RENUMBERING, &filt);
+	if (setsockopt(s6, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
+		       sizeof(filt)) < 0) {
+		syslog(LOG_ERR, "<%s> IICMP6_FILTER: %s",
+		       __FUNCTION__, strerror(errno));
+		exit(1);
+	}
+
+	/* specify to tell receiving interface */
+	on = 1;
+	if (setsockopt(s6, IPPROTO_IPV6, IPV6_PKTINFO, &on,
+		       sizeof(on)) < 0) {
+		syslog(LOG_ERR, "<%s> IPV6_PKTINFO: %s",
+		       __FUNCTION__, strerror(errno));
+		exit(1);
+	}
+
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+	if (flags->policy) {
+		char *buf;
+		buf = ipsec_set_policy(policy, strlen(policy));
+		if (buf == NULL)
+			errx(1, ipsec_strerror());
+		/* XXX should handle in/out bound policy. */
+		if (setsockopt(s6, IPPROTO_IPV6, IPV6_IPSEC_POLICY,
+				buf, ipsec_get_policylen(buf)) < 0)
+			err(1, NULL);
+		free(buf);
+	}
+#endif /* IPSEC_POLICY_IPSEC */
+#endif /* IPSEC */
+
+	return;
+}
+
+void
+rrenum_output(struct payload_list *pl, struct dst_list *dl)
+{
+	int i, msglen = 0;
+	struct cmsghdr *cm;
+	struct in6_pktinfo *pi;
+	struct icmp6_router_renum *rr;
+	struct sockaddr_in6 *sin6 = NULL;
+
+	sndmhdr.msg_name = (caddr_t)dl->dl_dst;
+	if (dl->dl_dst->sa_family == AF_INET6)
+		sin6 = (struct sockaddr_in6 *)dl->dl_dst;
+
+	if (sin6 != NULL &&
+	    IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr)) {
+		int hoplimit = 255;
+
+		cm = CMSG_FIRSTHDR(&sndmhdr);
+		/* specify the outgoing interface */
+		cm->cmsg_level = IPPROTO_IPV6;
+		cm->cmsg_type = IPV6_PKTINFO;
+		cm->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
+		pi = (struct in6_pktinfo *)CMSG_DATA(cm);
+		memset(&pi->ipi6_addr, 0, sizeof(pi->ipi6_addr));	/*XXX*/
+		pi->ipi6_ifindex = sin6->sin6_scope_id;
+		msglen += CMSG_SPACE(sizeof(struct in6_pktinfo));
+
+		/* specify the hop limit of the packet if dest is link local */
+		/* not defined by router-renum-05.txt, but maybe its OK */
+		cm = CMSG_NXTHDR(&sndmhdr, cm);
+		cm->cmsg_level = IPPROTO_IPV6;
+		cm->cmsg_type = IPV6_HOPLIMIT;
+		cm->cmsg_len = CMSG_LEN(sizeof(int));
+		memcpy(CMSG_DATA(cm), &hoplimit, sizeof(int));
+		msglen += CMSG_SPACE(sizeof(int));
+	}
+	sndmhdr.msg_controllen = msglen;
+	if (sndmhdr.msg_controllen == 0)
+		sndmhdr.msg_control = 0;
+
+	sndmhdr.msg_iov = &pl->pl_sndiov;
+	i = sendmsg(s6, &sndmhdr, 0);
+
+	if (i < 0 || i != sndmhdr.msg_iov->iov_len)
+		syslog(LOG_ERR, "<%s> sendmsg: %s", __FUNCTION__,
+		       strerror(errno));
+}
+
+void
+rrenum_snd_eachdst(struct payload_list *pl)
+{
+	struct dst_list *dl;
+
+	for (dl = dl_head; dl; dl = dl->dl_next) {
+		rrenum_output(pl, dl);
+	}
+}
+
+void
+rrenum_snd_fullsequence()
+{
+	struct payload_list *pl;
+
+	for (pl = pl_head; pl; pl = pl->pl_next) {
+		rrenum_snd_eachdst(pl);
+	}
+}
+
+void
+rrenum_input(int s)
+{
+	int i;
+	struct icmp6_router_renum *rr;
+
+	/* get message */
+	if ((i = recvmsg(s, &rcvmhdr, 0)) < 0) {
+		syslog(LOG_ERR, "<%s> recvmsg: %s", __FUNCTION__,
+		       strerror(errno));
+		return;
+	}
+	if (i < sizeof(struct icmp6_router_renum)) {
+		syslog(LOG_ERR, "<%s> packet size(%d) is too short",
+		       __FUNCTION__, i);
+		return;
+	}
+	rr = (struct icmp6_router_renum *)rcvmhdr.msg_iov->iov_base;
+
+	switch(rr->rr_code) {
+	case ICMP6_ROUTER_RENUMBERING_COMMAND:
+		/* COMMAND will be processed by rtadvd */
+		break;
+	case ICMP6_ROUTER_RENUMBERING_RESULT:
+		/* TODO: receiving result message */
+		break;
+	default:
+		syslog(LOG_ERR,	"<%s> received unknown code %d"
+		       __FUNCTION__, rr->rr_code);
+		break;
+	}
+}
+
+int
+main(int argc, char *argv[])
+{
+	char *cfile = NULL;
+	FILE *fp = stdin;
+	fd_set fdset;
+	struct timeval timeout;
+	int ch, i, maxfd = 0, send_counter = 0;
+	struct flags flags;
+	struct payload_list *pl;
+#ifdef IPSEC_POLICY_IPSEC
+	char *policy = NULL;
+#endif
+
+	memset(&flags, 0, sizeof(flags));
+	openlog(*argv, LOG_PID, LOG_DAEMON);
+
+	/* get options */
+	while ((ch = getopt(argc, argv, "c:sdf"
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+			    "P:"
+#endif /* IPSEC_POLICY_IPSEC */
+#endif /* IPSEC */
+			    )) != -1){
+		switch (ch) {
+		case 'c':
+			if((fp = fopen(optarg, "r")) == NULL) {
+				syslog(LOG_ERR,
+				       "<%s> config file %s open failed",
+				       __FUNCTION__, optarg);
+				exit(1);
+			}
+			break;
+		case 's':
+			fp = stdin;
+			break;
+		case 'd':
+			flags.debug = 1;
+			break;
+		case 'f':
+			flags.fg = 1;
+			break;
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+		case 'P':
+			flags.policy = 1;
+			policy = strdup(optarg);
+			break;
+#endif /* IPSEC_POLICY_IPSEC */
+#endif /*IPSEC*/
+		default:
+			show_usage();
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	/* set log level */
+	if (flags.debug == 0)
+		(void)setlogmask(LOG_UPTO(LOG_ERR));
+	if (flags.debug == 1)
+		(void)setlogmask(LOG_UPTO(LOG_INFO));
+
+	/* init global variables */
+	init_globals();
+
+	config(&fp);
+
+	sock6_open(&flags
+#ifdef IPSEC_POLICY_IPSEC
+		   , policy
+#endif /* IPSEC_POLICY_IPSEC */
+		   );
+
+	if (!flags.fg)
+		daemon(0, 0);
+
+	FD_ZERO(&fdset);
+	if (with_v6dest) {
+		FD_SET(s6, &fdset);
+		if (s6 > maxfd)
+			maxfd = s6;
+	}
+
+	/* ADHOC: timeout each 30seconds */
+	memset(&timeout, 0, sizeof(timeout));
+	timeout.tv_sec = 30;
+
+	/* init temporal payload_list and send_counter*/
+	pl = pl_head;
+	send_counter = retry + 1;
+	while (1) {
+		struct fd_set select_fd = fdset; /* reinitialize */
+
+		if ((i = select(maxfd + 1, &select_fd, NULL, NULL,
+				&timeout)) < 0){
+			syslog(LOG_ERR, "<%s> select: %s",
+			       __FUNCTION__, strerror(errno));
+			continue;
+		}
+		if (i == 0) {	/* timeout */
+			if (pl == NULL)
+				exit(0);
+			rrenum_snd_eachdst(pl);
+			send_counter--;
+			if (send_counter == 0) {
+				pl = pl->pl_next;
+				send_counter = retry + 1;
+			}
+		}
+		if (FD_ISSET(s6, &select_fd))
+			rrenum_input(s6);
+	}
+}
diff --git a/usr.sbin/rrenumd/rrenumd.conf.5 b/usr.sbin/rrenumd/rrenumd.conf.5
new file mode 100644
index 0000000..76453cb
--- /dev/null
+++ b/usr.sbin/rrenumd/rrenumd.conf.5
@@ -0,0 +1,330 @@
+.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the project nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $Id: rrenumd.conf.5,v 1.1.1.1 1999/08/08 23:31:39 itojun Exp $
+.\"     $FreeBSD$
+.\"
+.Dd Nov 5, 1998
+.Dt RRENUMD.CONF 5
+.Os KAME
+.Sh NAME
+.\"
+.Nm rrenumd.conf
+.Nd configuration file for router renumbering daemon
+.\"
+.Sh DESCRIPTION
+The rrenumd config file describes how the router renumbering packet
+must be constructed and to which destinations it should be sent.
+This file consists of a sequence of statements terminated by a semi-colon (`;').
+Statements are composed of tokens
+separated by white space, which can be any combination of blanks, tabs
+and newlines.
+This structure simplifies identification of
+the parts of the configuration associated with each other.
+Lines beginning with
+.Ql #
+are comments.
+.\"
+.Sh Meta Syntax
+Keywords and special characters that the parser expects exactly are
+displayed using the
+.Ic bold
+font.
+Parameters are specifying with
+.Ar underline .
+Parameters shown in
+square brackets (`[' and `]') are used to show optional
+keywords and parameters.
+The vertical bar (`|') is used to indicate
+between a choice of optional parameters.
+Parentheses (`(' and
+`)') are used to group keywords and parameters when necessary.
+.\"
+.Sh Interface specification
+There are some statements that may or have to specify interface.
+Interfaces are specified in the form of "name unit", such as
+.Ar lo0
+and
+.Ar ep1.
+.\"
+.Sh Configuration Statements
+.Bl -tag -width Ds
+.\"
+.It Ic debug on|off ;
+Enables configuration file parser debugging.
+If
+.Ic on
+is specified,
+then debugging is enabled,
+If
+.Ic off
+is specified,
+then debugging is disabled. It is disabled by default.
+.\"
+.It Ic dest Ar dest-list Op Ar retrycmd ;
+Specifies destinations to which router renumbering messages should be
+sent.
+.Ar dest-list
+can be any combination of single or multiple numerical IPv6 addrs,
+or Full Qualified Domain Names.
+.Ar retrycmd
+has following syntax.
+
+.\"
+.Bl -tag -width Ds -compact
+.It Ic retry Ar retry-num
+.Ar retry-num
+specifies how many router renumbering messages are sent repeatedly.
+.El
+.It Op Ic add|change|setglobal
+.Cm match-prefix Ar match-prefix-val
+.Op /match-prefix-len
+.Op Cm maxlen Ar maxlen-val
+.Op Cm minlen Ar minlen-val
+.Op Cm use-prefix Ar use-prefix-val
+.Op /use-prefix-len
+.Op Cm keeplen Ar keeplen-val
+.Op Ar use-prefix-values ;
+.Pp
+Specifies contents of sending router renumbering message with seqnum 0.
+If
+.Cm add|change|setglobal
+is not specified, then
+.Cm add
+is assumed.
+.Ar use-prefix-values
+has following syntax.
+.Pp
+{
+.Op Cm vltime Ar vltime-val
+.Op Cm pltime Ar pltime-val
+.Op Cm raf_onlink Cm on|off
+.Op Cm raf_auto Cm on|off
+.Op Cm rrf_decrprefd Cm on|off
+.Op Cm rrf_decrvalid Cm on|off
+}
+.Pp
+Each value has following meaning.
+.Pp
+.Bl -tag -width Ds -compact
+.It Cm match-prefix Ar match-prefix-val Op /match-prefix-len
+Specify
+.Ar match-prefix-val
+that is used for matching with preassigned prefixes to which
+.Cm add|change|setglobal
+command should be applied.
+.Ar /match-prefix-len
+Specify the starting part of
+.Ar match-prefix-val
+to be used for matching with preassigned prefixes, as decimal bit number.
+.It Cm maxlen Ar maxlen-val
+Specify the maximum length of prefixes which is allowed to be
+matched to
+.Ar match-prefix-val ,
+as decimal bit number.
+.It Cm minlen Ar minlen-val
+Specify the minimum length of prefixes which is allowed to be matched to
+.Ar match-prefix-val ,
+as decimal bit number.
+.It Cm use-prefix Ar use-prefix-val Op /usr-prefix-len
+Specify
+.Ar use-prefix-val
+that is used for prefixes to be added on
+.Cm add|change|setglobal
+command.
+.Ar /use-prefix-len
+Specify the starting part of
+.Ar use-prefix-val
+copied to the starting part of prefixes to be added on
+.Cm add|change|setglobal
+command, as decimal bit number.
+.It Cm keeplen Ar keeplen-val
+Specify the midium part of
+.Ar use-prefix-val
+just next to the starting part specified by
+.Ar use-prefix-len
+, as decimal bit number.
+Contiguous bits part in the same bit position of an existent prefix
+matched with
+.Ar match-prefix-val
+is copied to the same bit position of prefixes to be added.
+.It Cm vltime Ar vmtime-val
+Assign an
+.Ar time
+as prefix valid life time for a prefix to be added.
+Valid value for
+.Ar time
+is decimal seconds number or special format as "d00h00m00s00",
+where 00 can take any decimal number, and "d" means days, "h" means hours,
+"m" means minutes, "s" means seconds. And alternatively, special keyword
+"infinity" can be also be specified.
+.It Cm pltime Ar pltime-val
+Assign an
+.Ar time
+as prefix preferred life time for a prefix to be added.
+Valid value for
+.Ar time
+is same as for
+.Ar vltime-val .
+.It Cm raf_onlink Cm on|off
+Let the prefix to be added to have on-link or off-link nature
+for the assigned interface. If
+.Cm on
+is specified, the prefix have on-link nature. (e.g. the prefix
+belong to the link) If
+.Cm off
+is specified, the prefix have off-link nature. (e.g. the
+prefix does not belong to the link)
+.It Cm raf_auto Cm on|off
+Enable or disable the autonomous address auto configuration
+for the prefix to be added. If
+.Cm on
+is specified, autonomous address auto configuration is
+enabled. If
+.Cm off
+is specified, it is disabled.
+.It Cm rrf_decrprefd Cm on|off
+Enable or disable the decrementation of the pltime. If
+.Cm on
+is specified, decrementation of the pltime is enabled. If
+.Cm off
+is specified, decrementation of the pltime is disabled.
+.It Cm rrf_decrvalid Cm on|off
+Enable or disable the decrementation of the vltime. If
+.Cm on
+is specified, decrementation of the vltime is enabled. If
+.Cm off
+is specified, decrementation of the vltime is disabled.
+.El
+.\"
+.It seqnum Ar seqnum-val { Ar rrenum-cmd } ;
+Specifies contents of sending router renumbering message with some
+specific seqnum. Multiple of this statement can be specified if they
+have different
+.Ar seqnum-val
+each other.
+.Ar rrenum-cmd
+has just same syntax with above add|change|setglobal statement.
+.El
+.\"
+.Sh EXAMPLE
+For each configuration file example shown below, we suppose
+every IPv6 subnet has its own prefix beginning with
+fec0:0:0::/48 and with its own subnet number. (in this case,
+subnet number is 7th and 8th octet value of the prefix)
+.Pp
+If you want to assigne prefixes beginning with fec0:1:1::/48
+to each subnet, then following configuration will be enough,
+if each of your routers supports IPv6 multicast forwarding.
+The subnet number of the existing fec0:0:0::/48 prefix and the
+newly assigned fec0:1:1::/48 prefix will be same.
+.\"
+.Bd -literal -offset indent
+dest ff05::2;
+
+add match-prefix fec0:0:0:: /48 use-prefix fec0:1:1:: /48 keeplen 16;
+.Ed
+.\"
+
+If your routers don't support IPv6 multicast forwarding,
+you'll need to specify each destination at
+.Cm dest
+command.
+.\"
+.Bd -literal -offset indent
+dest fec0:0:0:1:260:8ff:fe24:fb3a fec0:0:0:2:200:eff:fe2e:dfe1 fec0:0:0:3:5254:ff:fedc:5217;
+
+add match-prefix fec0:0:0:: /48 use-prefix fec0:1:1:: /48 keeplen 16;
+.Ed
+.\"
+
+If you are going to do renumbering, then following procedure will be natural.
+.Bl -enum -offset indent
+.It
+Assigne new prefix.
+.It
+Set old prefix lifetimes to some appropriate transition
+period. In the followng example we use 1 week for valid
+lifetime, and 0 for preferred lifetime.
+Also, enable old prefix lifetime expiration.
+(By default, it is static and does not expire)
+.It
+After the transition period, old prefixes should become
+invalid, and may have been deleted.
+To make sure that they are deleted, send new router
+renumbering message, which specifies old prefixes as match
+prefix, and no use prefix.
+.El
+.\"
+
+The following configuration file will do 1 and 2.
+.\"
+.Bd -literal -offset indent
+dest ff05::2;
+
+seqnum 0 {
+	add match-prefix fec0:0:0:: /48 use-prefix fec0:2:2:: /48 keeplen 16;
+	};
+
+seqnum 1 {
+	change match-prefix fec0:1:1:: /48 use-prefix fec0:1:1:: /48 keeplen 16 vltime d7 pltime 0 rrf_decrvalid on rrf_decrprefd on;
+	};
+.Ed
+.\"
+
+And the following configuration file will do 3. (should be
+used for the router renumbering message to be sent 1 week
+afterward)
+.\"
+.Bd -literal -offset indent
+dest ff05::2;
+
+change match-prefix fec0:1:1:: /48;
+.Ed
+.\"
+
+In the above example, only
+.Cm add
+and
+.Cm change
+commands are used, and there is no example for
+.Cm setglobal
+command.
+.Cm setglobal
+command is almost same with
+.Cm change
+command except that it deletes all pre-defined IPv6 global address.
+
+.Sh SEE ALSO
+.Xr rrenumd 8
+.Xr prefix 8
+.Sh HISTORY
+The
+.Nm
+configuration file was first appeared in KAME IPv6 protocol stack kit.
+.\" .Sh BUGS
+.\" (to be written)
diff --git a/usr.sbin/rrenumd/rrenumd.h b/usr.sbin/rrenumd/rrenumd.h
new file mode 100644
index 0000000..dae2cd0
--- /dev/null
+++ b/usr.sbin/rrenumd/rrenumd.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    This product includes software developed by WIDE Project and
+ *    its contributors.
+ * 4. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+struct dst_list {
+	struct	dst_list *dl_next;
+	struct	sockaddr *dl_dst;
+};
+
+extern struct	dst_list *dl_head;
+
+struct payload_list {
+	struct	payload_list *pl_next;
+	struct	iovec pl_sndiov;
+	struct	icmp6_router_renum pl_irr;
+	struct	rr_pco_match pl_rpm;
+	/* currently, support only 1 rr_pco_use field per packet */
+	struct	rr_pco_use pl_rpu;
+};
+
+extern struct	payload_list *pl_head;
+extern u_int	retry;
+extern int	with_v4dest, with_v6dest;
+
+#define	DEF_VLTIME 2592000
+#define	DEF_PLTIME 604800