token.l revision 121021
1/* $FreeBSD: head/sbin/setkey/token.l 121021 2003-10-12 09:41:42Z ume $ */ 2/* $KAME: token.l,v 1.21 2001/05/18 05:35:01 sakane Exp $ */ 3 4/* 5 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33%{ 34#include <sys/types.h> 35#include <sys/param.h> 36#include <sys/socket.h> 37#include <net/route.h> 38#include <net/pfkeyv2.h> 39#include <netkey/keydb.h> 40#include <netkey/key_debug.h> 41#include <netinet/in.h> 42#include <netinet6/ipsec.h> 43 44#include <stdlib.h> 45#include <limits.h> 46#include <string.h> 47#include <unistd.h> 48#include <errno.h> 49#include "vchar.h" 50#ifdef __NetBSD__ 51#include "parse.h" 52#else 53#include "y.tab.h" 54#endif 55 56#define DECHO \ 57 if (f_debug) {printf("<%d>", yy_start); ECHO ; printf("\n"); } 58 59#define CMDARG \ 60{ \ 61 char *__buf__ = strdup(yytext), *__p__; \ 62 for (__p__ = __buf__; *__p__ != NULL; __p__++) \ 63 if (*__p__ == '\n' || *__p__ == '\t') \ 64 *__p__ = ' '; \ 65 strcat(cmdarg, __buf__); \ 66 free(__buf__); \ 67} 68 69#define PREPROC DECHO CMDARG 70 71int lineno = 1; 72char cmdarg[8192]; /* XXX: BUFSIZ is the better ? */ 73 74extern u_char m_buf[BUFSIZ]; 75extern u_int m_len; 76extern int f_debug; 77 78int yylex __P((void)); 79void yyfatal __P((const char *s)); 80void yyerror __P((const char *s)); 81extern void parse_init __P((void)); 82int parse __P((FILE **)); 83int yyparse __P((void)); 84 85%} 86 87/* common section */ 88nl \n 89ws [ \t]+ 90digit [0-9] 91letter [0-9A-Za-z] 92hexdigit [0-9A-Fa-f] 93/*octet (([01]?{digit}?{digit})|((2([0-4]{digit}))|(25[0-5])))*/ 94special [()+\|\?\*,] 95dot \. 96comma \, 97hyphen \- 98colon \: 99slash \/ 100bcl \{ 101ecl \} 102blcl \[ 103elcl \] 104percent \% 105semi \; 106usec {dot}{digit}{1,6} 107comment \#.* 108ccomment "/*" 109bracketstring \<[^>]*\> 110quotedstring \"[^"]*\" 111decstring {digit}+ 112hexpair {hexdigit}{hexdigit} 113hexstring 0[xX]{hexdigit}+ 114octetstring {octet}({dot}{octet})+ 115ipaddress [a-fA-F0-9:]([a-fA-F0-9:\.]*|[a-fA-F0-9:\.]*%[a-zA-Z0-9]*) 116ipaddrmask {slash}{digit}{1,3} 117ipaddrport {blcl}{decstring}{elcl} 118keyword {letter}{letter}+ 119name {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))* 120hostname {name}(({dot}{name})+{dot}?)? 121 122%s S_PL 123 124%% 125 126add { PREPROC; return(ADD); } 127delete { PREPROC; return(DELETE); } 128deleteall { PREPROC; return(DELETEALL); } 129get { PREPROC; return(GET); } 130flush { PREPROC; return(FLUSH); } 131dump { PREPROC; return(DUMP); } 132 133 /* for management SPD */ 134spdadd { PREPROC; return(SPDADD); } 135spddelete { PREPROC; return(SPDDELETE); } 136spddump { PREPROC; return(SPDDUMP); } 137spdflush { PREPROC; return(SPDFLUSH); } 138{hyphen}P { BEGIN S_PL; PREPROC; return(F_POLICY); } 139<S_PL>[a-zA-Z0-9:\.\-_/ \n\t][a-zA-Z0-9:\.\-_/ \n\t]* { 140 yymore(); 141 142 /* count up for nl */ 143 { 144 char *p; 145 for (p = yytext; *p != NULL; p++) 146 if (*p == '\n') 147 lineno++; 148 } 149 150 yylval.val.len = strlen(yytext); 151 yylval.val.buf = strdup(yytext); 152 153 return(PL_REQUESTS); 154} 155<S_PL>{semi} { PREPROC; BEGIN INITIAL; return(EOT); } 156 157 /* security protocols */ 158ah { PREPROC; yylval.num = 0; return(PR_AH); } 159esp { PREPROC; yylval.num = 0; return(PR_ESP); } 160ah-old { PREPROC; yylval.num = 1; return(PR_AH); } 161esp-old { PREPROC; yylval.num = 1; return(PR_ESP); } 162ipcomp { PREPROC; yylval.num = 0; return(PR_IPCOMP); } 163 164 /* authentication alogorithm */ 165{hyphen}A { PREPROC; return(F_AUTH); } 166hmac-md5 { PREPROC; yylval.num = SADB_AALG_MD5HMAC; return(ALG_AUTH); } 167hmac-sha1 { PREPROC; yylval.num = SADB_AALG_SHA1HMAC; return(ALG_AUTH); } 168keyed-md5 { PREPROC; yylval.num = SADB_X_AALG_MD5; return(ALG_AUTH); } 169keyed-sha1 { PREPROC; yylval.num = SADB_X_AALG_SHA; return(ALG_AUTH); } 170hmac-sha2-256 { PREPROC; yylval.num = SADB_X_AALG_SHA2_256; return(ALG_AUTH); } 171hmac-sha2-384 { PREPROC; yylval.num = SADB_X_AALG_SHA2_384; return(ALG_AUTH); } 172hmac-sha2-512 { PREPROC; yylval.num = SADB_X_AALG_SHA2_512; return(ALG_AUTH); } 173hmac-ripemd160 { PREPROC; yylval.num = SADB_X_AALG_RIPEMD160HMAC; return(ALG_AUTH); } 174null { PREPROC; yylval.num = SADB_X_AALG_NULL; return(ALG_AUTH); } 175 176 /* encryption alogorithm */ 177{hyphen}E { PREPROC; return(F_ENC); } 178des-cbc { PREPROC; yylval.num = SADB_EALG_DESCBC; return(ALG_ENC); } 1793des-cbc { PREPROC; yylval.num = SADB_EALG_3DESCBC; return(ALG_ENC); } 180simple { PREPROC; yylval.num = SADB_EALG_NULL; return(ALG_ENC); } 181blowfish-cbc { PREPROC; yylval.num = SADB_X_EALG_BLOWFISHCBC; return(ALG_ENC); } 182cast128-cbc { PREPROC; yylval.num = SADB_X_EALG_CAST128CBC; return(ALG_ENC); } 183des-deriv { PREPROC; yylval.num = SADB_EALG_DESCBC; return(ALG_ENC_DESDERIV); } 184des-32iv { PREPROC; yylval.num = SADB_EALG_DESCBC; return(ALG_ENC_DES32IV); } 185rijndael-cbc { PREPROC; yylval.num = SADB_X_EALG_RIJNDAELCBC; return(ALG_ENC); } 186 187 /* compression algorithms */ 188{hyphen}C { PREPROC; return(F_COMP); } 189oui { PREPROC; yylval.num = SADB_X_CALG_OUI; return(ALG_COMP); } 190deflate { PREPROC; yylval.num = SADB_X_CALG_DEFLATE; return(ALG_COMP); } 191lzs { PREPROC; yylval.num = SADB_X_CALG_LZS; return(ALG_COMP); } 192{hyphen}R { PREPROC; return(F_RAWCPI); } 193 194 /* extension */ 195{hyphen}m { PREPROC; return(F_MODE); } 196transport { PREPROC; yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); } 197tunnel { PREPROC; yylval.num = IPSEC_MODE_TUNNEL; return(MODE); } 198{hyphen}u { PREPROC; return(F_REQID); } 199{hyphen}f { PREPROC; return(F_EXT); } 200random-pad { PREPROC; yylval.num = SADB_X_EXT_PRAND; return(EXTENSION); } 201seq-pad { PREPROC; yylval.num = SADB_X_EXT_PSEQ; return(EXTENSION); } 202zero-pad { PREPROC; yylval.num = SADB_X_EXT_PZERO; return(EXTENSION); } 203nocyclic-seq { PREPROC; return(NOCYCLICSEQ); } 204{hyphen}r { PREPROC; return(F_REPLAY); } 205{hyphen}lh { PREPROC; return(F_LIFETIME_HARD); } 206{hyphen}ls { PREPROC; return(F_LIFETIME_SOFT); } 207 208 /* ... */ 209any { PREPROC; return(ANY); } 210{ws} { PREPROC; } 211{nl} { lineno++; } 212{comment} 213{semi} { PREPROC; return(EOT); } 214 215 /* parameter */ 216{decstring} { 217 char *bp; 218 219 PREPROC; 220 yylval.num = strtoul(yytext, &bp, 10); 221 return(DECSTRING); 222 } 223 224{ipaddress} { 225 PREPROC; 226 227 yylval.val.len = yyleng; 228 yylval.val.buf = strdup(yytext); 229 230 return(ADDRESS); 231 } 232 233{ipaddrmask} { 234 PREPROC; 235 yytext++; 236 yylval.num = atoi(yytext); 237 return(PREFIX); 238 } 239 240{ipaddrport} { 241 char *p = yytext; 242 PREPROC; 243 while (*++p != ']') ; 244 *p = NULL; 245 yytext++; 246 yylval.num = atoi(yytext); 247 return(PORT); 248 } 249 250{blcl}any{elcl} { 251 PREPROC; 252 return(PORTANY); 253 } 254 255{hexstring} { 256 int len = yyleng - 2; /* (str - "0x") */ 257 PREPROC; 258 yylval.val.len = (len & 1) + (len / 2); 259 /* fixed string if length is odd. */ 260 if (len & 1) { 261 yytext[1] = '0'; 262 yylval.val.buf = strdup(yytext + 1); 263 } else 264 yylval.val.buf = strdup(yytext + 2); 265 266 return(HEXSTRING); 267 } 268 269{quotedstring} { 270 char *p = yytext; 271 PREPROC; 272 while (*++p != '"') ; 273 *p = NULL; 274 yytext++; 275 yylval.val.len = yyleng - 2; 276 yylval.val.buf = strdup(yytext); 277 278 return(QUOTEDSTRING); 279 } 280 281[a-z0-9.\-]* { 282 yylval.val.len = yyleng; 283 yylval.val.buf = strdup(yytext); 284 return(STRING); 285 } 286 287. { 288 yyfatal("Syntax error"); 289 /*NOTREACHED*/ 290 } 291 292%% 293 294void 295yyfatal(s) 296 const char *s; 297{ 298 yyerror(s); 299 exit(1); 300} 301 302void 303yyerror(s) 304 const char *s; 305{ 306 printf("line %d: %s at [%s]\n", lineno, s, yytext); 307} 308 309int 310parse(fp) 311 FILE **fp; 312{ 313 yyin = *fp; 314 315 parse_init(); 316 317 if (yyparse()) { 318 printf("parse failed, line %d.\n", lineno); 319 return(-1); 320 } 321 322 return(0); 323} 324