[apple/ipsec.git] / ipsec-tools / setkey / token.l

/*	$KAME: token.l,v 1.44 2003/10/21 07:20:58 itojun Exp $	*/

/*
 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 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.
 */

%option noyywrap
%{

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#ifdef __APPLE__
#include <System/net/pfkeyv2.h>
#else
#include <net/pfkeyv2.h>
#endif
#include <netinet/in.h>
#ifdef HAVE_NETINET6_IPSEC
#  include <netinet6/ipsec.h>
#else 
#  include <netinet/ipsec.h>
#endif

#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <netdb.h>

#include "vchar.h"
#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__linux__)
#include "parse.h"
#else
#include "y.tab.h"
#endif

#include "extern.h"

/* make the code compile on *BSD-current */
#ifndef SADB_X_AALG_SHA2_256
#define SADB_X_AALG_SHA2_256	(-1)
#endif
#ifndef SADB_X_AALG_SHA2_384
#define SADB_X_AALG_SHA2_384	(-1)
#endif
#ifndef SADB_X_AALG_SHA2_512
#define SADB_X_AALG_SHA2_512	(-1)
#endif
#ifndef SADB_X_AALG_RIPEMD160HMAC
#define SADB_X_AALG_RIPEMD160HMAC	(-1)
#endif
#ifndef SADB_X_AALG_AES_XCBC_MAC
#define SADB_X_AALG_AES_XCBC_MAC	(-1)
#endif
#ifndef SADB_X_EALG_TWOFISHCBC
#define SADB_X_EALG_TWOFISHCBC	(-1)
#endif
#ifndef SADB_X_EALG_AESCTR
#define SADB_X_EALG_AESCTR	(-1)
#endif
%}

/* common section */
nl		\n
ws		[ \t]+
digit		[0-9]
letter		[0-9A-Za-z]
hexdigit	[0-9A-Fa-f]
dot		\.
hyphen		\-
slash		\/
blcl		\[
elcl		\]
semi		\;
comment		\#.*
quotedstring	\"[^"]*\"
decstring	{digit}+
hexstring	0[xX]{hexdigit}+
ipaddress	[a-fA-F0-9:]([a-fA-F0-9:\.]*|[a-fA-F0-9:\.]*%[a-zA-Z0-9]*)
ipaddrmask	{slash}{digit}{1,3}
name		{letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))*
hostname	{name}(({dot}{name})+{dot}?)?

%s S_PL S_AUTHALG S_ENCALG

%%

add		{ return(ADD); }
delete		{ return(DELETE); }
deleteall	{ return(DELETEALL); }
get		{ return(GET); }
flush		{ return(FLUSH); }
dump		{ return(DUMP); }
exit		{ return(EXIT); }
quit		{ return(EXIT); }
bye		{ return(EXIT); }

	/* for management SPD */
spdadd		{ return(SPDADD); }
spddelete	{ return(SPDDELETE); }
spddump		{ return(SPDDUMP); }
spdflush	{ return(SPDFLUSH); }
tagged		{ return(TAGGED); }
{hyphen}P	{ BEGIN S_PL; return(F_POLICY); }
<S_PL>[a-zA-Z0-9:\.\-_/ \n\t][a-zA-Z0-9:\.%\-+_/ \n\t\]\[]* {
			yymore();

			/* count up for nl */
			    {
				char *p;
				for (p = yytext; *p != '\0'; p++)
					if (*p == '\n')
						lineno++;
			    }

			yylval.val.len = strlen(yytext);
			yylval.val.buf = strdup(yytext);
			if (!yylval.val.buf)
				yyfatal("insufficient memory");

			return(PL_REQUESTS);
		}
<S_PL>{semi}	{ BEGIN INITIAL; return(EOT); }

	/* address resolution flags */
{hyphen}[n46][n46]*	{
			yylval.val.len = strlen(yytext);
			yylval.val.buf = strdup(yytext);
			if (!yylval.val.buf)
				yyfatal("insufficient memory");
			return(F_AIFLAGS);
		}

	/* security protocols */
ah		{ yylval.num = 0; return(PR_AH); }
esp		{ yylval.num = 0; return(PR_ESP); }
ah-old		{ yylval.num = 1; return(PR_AH); }
esp-old		{ yylval.num = 1; return(PR_ESP); }
esp-udp		{ yylval.num = 0; return(PR_ESPUDP); }
ipcomp		{ yylval.num = 0; return(PR_IPCOMP); }
tcp		{ 
			yylval.num = 0; return(PR_TCP); 
		}

	/* authentication alogorithm */
{hyphen}A	{ BEGIN S_AUTHALG; return(F_AUTH); }
<S_AUTHALG>hmac-md5	{ yylval.num = SADB_AALG_MD5HMAC; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>hmac-sha1	{ yylval.num = SADB_AALG_SHA1HMAC; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>keyed-md5	{ yylval.num = SADB_X_AALG_MD5; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>keyed-sha1	{ yylval.num = SADB_X_AALG_SHA; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>hmac-sha2-256 { yylval.num = SADB_X_AALG_SHA2_256; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>hmac-sha256 { yylval.num = SADB_X_AALG_SHA2_256; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>hmac-sha2-384 { yylval.num = SADB_X_AALG_SHA2_384; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>hmac-sha384 { yylval.num = SADB_X_AALG_SHA2_384; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>hmac-sha2-512 { yylval.num = SADB_X_AALG_SHA2_512; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>hmac-sha512 { yylval.num = SADB_X_AALG_SHA2_512; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>hmac-ripemd160 { yylval.num = SADB_X_AALG_RIPEMD160HMAC; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>aes-xcbc-mac { yylval.num = SADB_X_AALG_AES_XCBC_MAC; BEGIN INITIAL; return(ALG_AUTH); }
<S_AUTHALG>tcp-md5	{ 
#ifdef SADB_X_AALG_TCP_MD5
				yylval.num = SADB_X_AALG_TCP_MD5; 
				BEGIN INITIAL; 
				return(ALG_AUTH); 
#endif
			}
<S_AUTHALG>null { yylval.num = SADB_X_AALG_NULL; BEGIN INITIAL; return(ALG_AUTH_NOKEY); }

	/* encryption alogorithm */
{hyphen}E	{ BEGIN S_ENCALG; return(F_ENC); }
<S_ENCALG>des-cbc	{ yylval.num = SADB_EALG_DESCBC; BEGIN INITIAL; return(ALG_ENC); }
<S_ENCALG>3des-cbc	{ yylval.num = SADB_EALG_3DESCBC; BEGIN INITIAL; return(ALG_ENC); }
<S_ENCALG>null		{ yylval.num = SADB_EALG_NULL; BEGIN INITIAL; return(ALG_ENC_NOKEY); }
<S_ENCALG>simple	{ yylval.num = SADB_EALG_NULL; BEGIN INITIAL; return(ALG_ENC_OLD); }
<S_ENCALG>blowfish-cbc	{ yylval.num = SADB_X_EALG_BLOWFISHCBC; BEGIN INITIAL; return(ALG_ENC); }
<S_ENCALG>cast128-cbc	{ yylval.num = SADB_X_EALG_CAST128CBC; BEGIN INITIAL; return(ALG_ENC); }
<S_ENCALG>des-deriv	{ yylval.num = SADB_EALG_DESCBC; BEGIN INITIAL; return(ALG_ENC_DESDERIV); }
<S_ENCALG>des-32iv	{ yylval.num = SADB_EALG_DESCBC; BEGIN INITIAL; return(ALG_ENC_DES32IV); }
<S_ENCALG>twofish-cbc	{ yylval.num = SADB_X_EALG_TWOFISHCBC; BEGIN INITIAL; return(ALG_ENC); }
<S_ENCALG>aes-cbc	{ 
#ifdef SADB_X_EALG_AESCBC
	yylval.num = SADB_X_EALG_AESCBC; BEGIN INITIAL; return(ALG_ENC); 
#endif
}
<S_ENCALG>rijndael-cbc	{ 
#ifdef SADB_X_EALG_AESCBC
	yylval.num = SADB_X_EALG_AESCBC; BEGIN INITIAL; return(ALG_ENC); 
#endif
}
<S_ENCALG>aes-ctr	{ yylval.num = SADB_X_EALG_AESCTR; BEGIN INITIAL; return(ALG_ENC); }

	/* compression algorithms */
{hyphen}C	{ return(F_COMP); }
oui		{ yylval.num = SADB_X_CALG_OUI; return(ALG_COMP); }
deflate		{ yylval.num = SADB_X_CALG_DEFLATE; return(ALG_COMP); }
lzs		{ yylval.num = SADB_X_CALG_LZS; return(ALG_COMP); }
{hyphen}R	{ return(F_RAWCPI); }

	/* extension */
{hyphen}m	{ return(F_MODE); }
transport	{ yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); }
tunnel		{ yylval.num = IPSEC_MODE_TUNNEL; return(MODE); }
{hyphen}u	{ return(F_REQID); }
{hyphen}f	{ return(F_EXT); }
random-pad	{ yylval.num = SADB_X_EXT_PRAND; return(EXTENSION); }
seq-pad		{ yylval.num = SADB_X_EXT_PSEQ; return(EXTENSION); }
zero-pad	{ yylval.num = SADB_X_EXT_PZERO; return(EXTENSION); }
nocyclic-seq	{ return(NOCYCLICSEQ); }
{hyphen}r	{ return(F_REPLAY); }
{hyphen}lh	{ return(F_LIFETIME_HARD); }
{hyphen}ls	{ return(F_LIFETIME_SOFT); }
{hyphen}bh	{ return(F_LIFEBYTE_HARD); }
{hyphen}bs	{ return(F_LIFEBYTE_SOFT); }

	/* ... */
any		{ return(ANY); }
{ws}		{ }
{nl}		{ lineno++; }
{comment}
{semi}		{ return(EOT); }

	/* for address parameters: /prefix, [port] */
{slash}		{ return SLASH; }
{blcl}		{ return BLCL; }
{elcl}		{ return ELCL; }

	/* parameter */
{decstring}	{
			char *bp;

			yylval.ulnum = strtoul(yytext, &bp, 10);
			return(DECSTRING);
		}

{hexstring}	{
			yylval.val.buf = strdup(yytext + 2);
			if (!yylval.val.buf)
				yyfatal("insufficient memory");
			yylval.val.len = strlen(yylval.val.buf);

			return(HEXSTRING);
		}

{quotedstring}	{
			char *p = yytext;
			while (*++p != '"') ;
			*p = '\0';
			yytext++;
			yylval.val.len = yyleng - 2;
			yylval.val.buf = strdup(yytext);
			if (!yylval.val.buf)
				yyfatal("insufficient memory");

			return(QUOTEDSTRING);
		}

[A-Za-z0-9:][A-Za-z0-9:%\.-]* {
			yylval.val.len = yyleng;
			yylval.val.buf = strdup(yytext);
			if (!yylval.val.buf)
				yyfatal("insufficient memory");
			return(STRING);
		}

[0-9,]+ {
			yylval.val.len = yyleng;
			yylval.val.buf = strdup(yytext);
			if (!yylval.val.buf)
				yyfatal("insufficient memory");
			return(STRING);
		}

.		{
			yyfatal("Syntax error");
			/*NOTREACHED*/
		}

%%

void
yyfatal(s)
	const char *s;
{
	yyerror(s);
	exit(1);
}

void
yyerror(s)
	const char *s;
{
	printf("line %d: %s at [%s]\n", lineno, s, yytext);
}

int
parse(fp)
	FILE **fp;
{
	yyin = *fp;

	lineno = 1;
	parse_init();

	if (yyparse()) {
		printf("parse failed, line %d.\n", lineno);
		return(-1);
	}

	return(0);
}

int
parse_string (char *src)
{
	int             result;
	YY_BUFFER_STATE buf_state;

	buf_state = yy_scan_string(src);
	result = yyparse();
	yy_delete_buffer(buf_state);
	return result;
}
Commit	Line	Data
52b7d2ce A	1	/* $KAME: token.l,v 1.44 2003/10/21 07:20:58 itojun Exp $ */
	2
	3	/*
	4	* Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	* 1. Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions and the following disclaimer.
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3. Neither the name of the project nor the names of its contributors
	16	* may be used to endorse or promote products derived from this software
	17	* without specific prior written permission.
	18	*
	19	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
	20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	22	* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
	23	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	28	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	29	* SUCH DAMAGE.
	30	*/
	31
	32	%option noyywrap
	33	%{
	34
	35	#ifdef HAVE_CONFIG_H
	36	#include "config.h"
	37	#endif
	38
	39	#include <sys/types.h>
	40	#include <sys/param.h>
	41	#include <sys/socket.h>
	42	#ifdef __APPLE__
	43	#include <System/net/pfkeyv2.h>
	44	#else
	45	#include <net/pfkeyv2.h>
	46	#endif
	47	#include <netinet/in.h>
	48	#ifdef HAVE_NETINET6_IPSEC
	49	# include <netinet6/ipsec.h>
	50	#else
	51	# include <netinet/ipsec.h>
	52	#endif
	53
	54	#include <stdlib.h>
	55	#include <limits.h>
	56	#include <string.h>
	57	#include <unistd.h>
	58	#include <errno.h>
	59	#include <netdb.h>
	60
	61	#include "vchar.h"
	62	#if defined(__NetBSD__) \|\| defined(__FreeBSD__) \|\| defined(__linux__)
	63	#include "parse.h"
	64	#else
65	#include "y.tab.h"
66	#endif
67
68	#include "extern.h"
69
70	/* make the code compile on BSD-current /
71	#ifndef SADB_X_AALG_SHA2_256
72	#define SADB_X_AALG_SHA2_256 (-1)
73	#endif
74	#ifndef SADB_X_AALG_SHA2_384
75	#define SADB_X_AALG_SHA2_384 (-1)
76	#endif
77	#ifndef SADB_X_AALG_SHA2_512
78	#define SADB_X_AALG_SHA2_512 (-1)
79	#endif
80	#ifndef SADB_X_AALG_RIPEMD160HMAC
81	#define SADB_X_AALG_RIPEMD160HMAC (-1)
82	#endif
83	#ifndef SADB_X_AALG_AES_XCBC_MAC
84	#define SADB_X_AALG_AES_XCBC_MAC (-1)
85	#endif
86	#ifndef SADB_X_EALG_TWOFISHCBC
87	#define SADB_X_EALG_TWOFISHCBC (-1)
88	#endif
89	#ifndef SADB_X_EALG_AESCTR
90	#define SADB_X_EALG_AESCTR (-1)
91	#endif
92	%}
93
94	/* common section */
95	nl \n
96	ws [ \t]+
97	digit [0-9]
98	letter [0-9A-Za-z]
99	hexdigit [0-9A-Fa-f]
100	dot \.
101	hyphen \-
102	slash \/
103	blcl \[
104	elcl \]
105	semi \;
106	comment \#.*
107	quotedstring \"[^"]*\"
108	decstring {digit}+
109	hexstring 0[xX]{hexdigit}+
110	ipaddress [a-fA-F0-9:]([a-fA-F0-9:\.]\|[a-fA-F0-9:\.]%[a-zA-Z0-9]*)
111	ipaddrmask {slash}{digit}{1,3}
112	name {letter}(({letter}\|{digit}\|{hyphen})({letter}\|{digit}))
113	hostname {name}(({dot}{name})+{dot}?)?
114
115	%s S_PL S_AUTHALG S_ENCALG
116
117	%%
118
119	add { return(ADD); }
120	delete { return(DELETE); }
121	deleteall { return(DELETEALL); }
122	get { return(GET); }
123	flush { return(FLUSH); }
124	dump { return(DUMP); }
125	exit { return(EXIT); }
126	quit { return(EXIT); }
127	bye { return(EXIT); }
128
129	/* for management SPD */
130	spdadd { return(SPDADD); }
131	spddelete { return(SPDDELETE); }
132	spddump { return(SPDDUMP); }
133	spdflush { return(SPDFLUSH); }
134	tagged { return(TAGGED); }
135	{hyphen}P { BEGIN S_PL; return(F_POLICY); }
136	<S_PL>[a-zA-Z0-9:\.\-_/ \n\t][a-zA-Z0-9:\.%\-+_/ \n\t\]\[]* {
137	yymore();
138
139	/* count up for nl */
140	{
141	char *p;
142	for (p = yytext; *p != '\0'; p++)
143	if (*p == '\n')
144	lineno++;
145	}
146
147	yylval.val.len = strlen(yytext);
148	yylval.val.buf = strdup(yytext);
149	if (!yylval.val.buf)
150	yyfatal("insufficient memory");
151
152	return(PL_REQUESTS);
153	}
154	<S_PL>{semi} { BEGIN INITIAL; return(EOT); }
155
156	/* address resolution flags */
157	{hyphen}[n46][n46]* {
158	yylval.val.len = strlen(yytext);
159	yylval.val.buf = strdup(yytext);
160	if (!yylval.val.buf)
161	yyfatal("insufficient memory");
162	return(F_AIFLAGS);
163	}
164
165	/* security protocols */
166	ah { yylval.num = 0; return(PR_AH); }
167	esp { yylval.num = 0; return(PR_ESP); }
168	ah-old { yylval.num = 1; return(PR_AH); }
169	esp-old { yylval.num = 1; return(PR_ESP); }
170	esp-udp { yylval.num = 0; return(PR_ESPUDP); }
171	ipcomp { yylval.num = 0; return(PR_IPCOMP); }
172	tcp {
173	yylval.num = 0; return(PR_TCP);
174	}
175
176	/* authentication alogorithm */
177	{hyphen}A { BEGIN S_AUTHALG; return(F_AUTH); }
178	<S_AUTHALG>hmac-md5 { yylval.num = SADB_AALG_MD5HMAC; BEGIN INITIAL; return(ALG_AUTH); }
179	<S_AUTHALG>hmac-sha1 { yylval.num = SADB_AALG_SHA1HMAC; BEGIN INITIAL; return(ALG_AUTH); }
180	<S_AUTHALG>keyed-md5 { yylval.num = SADB_X_AALG_MD5; BEGIN INITIAL; return(ALG_AUTH); }
181	<S_AUTHALG>keyed-sha1 { yylval.num = SADB_X_AALG_SHA; BEGIN INITIAL; return(ALG_AUTH); }
182	<S_AUTHALG>hmac-sha2-256 { yylval.num = SADB_X_AALG_SHA2_256; BEGIN INITIAL; return(ALG_AUTH); }
183	<S_AUTHALG>hmac-sha256 { yylval.num = SADB_X_AALG_SHA2_256; BEGIN INITIAL; return(ALG_AUTH); }
184	<S_AUTHALG>hmac-sha2-384 { yylval.num = SADB_X_AALG_SHA2_384; BEGIN INITIAL; return(ALG_AUTH); }
185	<S_AUTHALG>hmac-sha384 { yylval.num = SADB_X_AALG_SHA2_384; BEGIN INITIAL; return(ALG_AUTH); }
186	<S_AUTHALG>hmac-sha2-512 { yylval.num = SADB_X_AALG_SHA2_512; BEGIN INITIAL; return(ALG_AUTH); }
187	<S_AUTHALG>hmac-sha512 { yylval.num = SADB_X_AALG_SHA2_512; BEGIN INITIAL; return(ALG_AUTH); }
188	<S_AUTHALG>hmac-ripemd160 { yylval.num = SADB_X_AALG_RIPEMD160HMAC; BEGIN INITIAL; return(ALG_AUTH); }
189	<S_AUTHALG>aes-xcbc-mac { yylval.num = SADB_X_AALG_AES_XCBC_MAC; BEGIN INITIAL; return(ALG_AUTH); }
190	<S_AUTHALG>tcp-md5 {
191	#ifdef SADB_X_AALG_TCP_MD5
192	yylval.num = SADB_X_AALG_TCP_MD5;
193	BEGIN INITIAL;
194	return(ALG_AUTH);
195	#endif
196	}
197	<S_AUTHALG>null { yylval.num = SADB_X_AALG_NULL; BEGIN INITIAL; return(ALG_AUTH_NOKEY); }
198
199	/* encryption alogorithm */
200	{hyphen}E { BEGIN S_ENCALG; return(F_ENC); }
201	<S_ENCALG>des-cbc { yylval.num = SADB_EALG_DESCBC; BEGIN INITIAL; return(ALG_ENC); }
202	<S_ENCALG>3des-cbc { yylval.num = SADB_EALG_3DESCBC; BEGIN INITIAL; return(ALG_ENC); }
203	<S_ENCALG>null { yylval.num = SADB_EALG_NULL; BEGIN INITIAL; return(ALG_ENC_NOKEY); }
204	<S_ENCALG>simple { yylval.num = SADB_EALG_NULL; BEGIN INITIAL; return(ALG_ENC_OLD); }
205	<S_ENCALG>blowfish-cbc { yylval.num = SADB_X_EALG_BLOWFISHCBC; BEGIN INITIAL; return(ALG_ENC); }
206	<S_ENCALG>cast128-cbc { yylval.num = SADB_X_EALG_CAST128CBC; BEGIN INITIAL; return(ALG_ENC); }
207	<S_ENCALG>des-deriv { yylval.num = SADB_EALG_DESCBC; BEGIN INITIAL; return(ALG_ENC_DESDERIV); }
208	<S_ENCALG>des-32iv { yylval.num = SADB_EALG_DESCBC; BEGIN INITIAL; return(ALG_ENC_DES32IV); }
209	<S_ENCALG>twofish-cbc { yylval.num = SADB_X_EALG_TWOFISHCBC; BEGIN INITIAL; return(ALG_ENC); }
210	<S_ENCALG>aes-cbc {
211	#ifdef SADB_X_EALG_AESCBC
212	yylval.num = SADB_X_EALG_AESCBC; BEGIN INITIAL; return(ALG_ENC);
213	#endif
214	}
215	<S_ENCALG>rijndael-cbc {
216	#ifdef SADB_X_EALG_AESCBC
217	yylval.num = SADB_X_EALG_AESCBC; BEGIN INITIAL; return(ALG_ENC);
218	#endif
219	}
220	<S_ENCALG>aes-ctr { yylval.num = SADB_X_EALG_AESCTR; BEGIN INITIAL; return(ALG_ENC); }
221
222	/* compression algorithms */
223	{hyphen}C { return(F_COMP); }
224	oui { yylval.num = SADB_X_CALG_OUI; return(ALG_COMP); }
225	deflate { yylval.num = SADB_X_CALG_DEFLATE; return(ALG_COMP); }
226	lzs { yylval.num = SADB_X_CALG_LZS; return(ALG_COMP); }
227	{hyphen}R { return(F_RAWCPI); }
228
229	/* extension */
230	{hyphen}m { return(F_MODE); }
231	transport { yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); }
232	tunnel { yylval.num = IPSEC_MODE_TUNNEL; return(MODE); }
233	{hyphen}u { return(F_REQID); }
234	{hyphen}f { return(F_EXT); }
235	random-pad { yylval.num = SADB_X_EXT_PRAND; return(EXTENSION); }
236	seq-pad { yylval.num = SADB_X_EXT_PSEQ; return(EXTENSION); }
237	zero-pad { yylval.num = SADB_X_EXT_PZERO; return(EXTENSION); }
238	nocyclic-seq { return(NOCYCLICSEQ); }
239	{hyphen}r { return(F_REPLAY); }
240	{hyphen}lh { return(F_LIFETIME_HARD); }
241	{hyphen}ls { return(F_LIFETIME_SOFT); }
242	{hyphen}bh { return(F_LIFEBYTE_HARD); }
243	{hyphen}bs { return(F_LIFEBYTE_SOFT); }
244
245	/* ... */
246	any { return(ANY); }
247	{ws} { }
248	{nl} { lineno++; }
249	{comment}
250	{semi} { return(EOT); }
251
252	/* for address parameters: /prefix, [port] */
253	{slash} { return SLASH; }
254	{blcl} { return BLCL; }
255	{elcl} { return ELCL; }
256
257	/* parameter */
258	{decstring} {
259	char *bp;
260
261	yylval.ulnum = strtoul(yytext, &bp, 10);
262	return(DECSTRING);
263	}
264
265	{hexstring} {
266	yylval.val.buf = strdup(yytext + 2);
267	if (!yylval.val.buf)
268	yyfatal("insufficient memory");
269	yylval.val.len = strlen(yylval.val.buf);
270
271	return(HEXSTRING);
272	}
273
274	{quotedstring} {
275	char *p = yytext;
276	while (*++p != '"') ;
277	*p = '\0';
278	yytext++;
279	yylval.val.len = yyleng - 2;
280	yylval.val.buf = strdup(yytext);
281	if (!yylval.val.buf)
282	yyfatal("insufficient memory");
283
284	return(QUOTEDSTRING);
285	}
286
287	[A-Za-z0-9:][A-Za-z0-9:%\.-]* {
288	yylval.val.len = yyleng;
289	yylval.val.buf = strdup(yytext);
290	if (!yylval.val.buf)
291	yyfatal("insufficient memory");
292	return(STRING);
293	}
294
295	[0-9,]+ {
296	yylval.val.len = yyleng;
297	yylval.val.buf = strdup(yytext);
298	if (!yylval.val.buf)
299	yyfatal("insufficient memory");
300	return(STRING);
301	}
302
303	. {
304	yyfatal("Syntax error");
305	/NOTREACHED/
306	}
307
308	%%
309
310	void
311	yyfatal(s)
312	const char *s;
313	{
314	yyerror(s);
315	exit(1);
316	}
317
318	void
319	yyerror(s)
320	const char *s;
321	{
322	printf("line %d: %s at [%s]\n", lineno, s, yytext);
323	}
324
325	int
326	parse(fp)
327	FILE **fp;
328	{
329	yyin = *fp;
330
331	lineno = 1;
332	parse_init();
333
334	if (yyparse()) {
335	printf("parse failed, line %d.\n", lineno);
336	return(-1);
337	}
338
339	return(0);
340	}
341
342	int
343	parse_string (char *src)
344	{
345	int result;
346	YY_BUFFER_STATE buf_state;
347
348	buf_state = yy_scan_string(src);
349	result = yyparse();
350	yy_delete_buffer(buf_state);
351	return result;
352	}
353