| 1 | /* $FreeBSD: src/usr.sbin/setkey/token.l,v 1.2.2.3 2001/07/03 11:02:17 ume Exp $ */ |
| 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 | |
| 71 | int lineno = 1; |
| 72 | char cmdarg[8192]; /* XXX: BUFSIZ is the better ? */ |
| 73 | |
| 74 | extern u_char m_buf[BUFSIZ]; |
| 75 | extern u_int m_len; |
| 76 | extern int f_debug; |
| 77 | |
| 78 | int yylex __P((void)); |
| 79 | void yyfatal __P((const char *s)); |
| 80 | void yyerror __P((const char *s)); |
| 81 | extern void parse_init __P((void)); |
| 82 | int parse __P((FILE **)); |
| 83 | int yyparse __P((void)); |
| 84 | |
| 85 | %} |
| 86 | |
| 87 | /* common section */ |
| 88 | nl \n |
| 89 | ws [ \t]+ |
| 90 | digit [0-9] |
| 91 | letter [0-9A-Za-z] |
| 92 | hexdigit [0-9A-Fa-f] |
| 93 | /*octet (([01]?{digit}?{digit})|((2([0-4]{digit}))|(25[0-5])))*/ |
| 94 | special [()+\|\?\*,] |
| 95 | dot \. |
| 96 | comma \, |
| 97 | hyphen \- |
| 98 | colon \: |
| 99 | slash \/ |
| 100 | bcl \{ |
| 101 | ecl \} |
| 102 | blcl \[ |
| 103 | elcl \] |
| 104 | percent \% |
| 105 | semi \; |
| 106 | usec {dot}{digit}{1,6} |
| 107 | comment \#.* |
| 108 | ccomment "/*" |
| 109 | bracketstring \<[^>]*\> |
| 110 | quotedstring \"[^"]*\" |
| 111 | decstring {digit}+ |
| 112 | hexpair {hexdigit}{hexdigit} |
| 113 | hexstring 0[xX]{hexdigit}+ |
| 114 | octetstring {octet}({dot}{octet})+ |
| 115 | ipaddress [a-fA-F0-9:]([a-fA-F0-9:\.]*|[a-fA-F0-9:\.]*%[a-zA-Z0-9]*) |
| 116 | ipaddrmask {slash}{digit}{1,3} |
| 117 | ipaddrport {blcl}{decstring}{elcl} |
| 118 | keyword {letter}{letter}+ |
| 119 | name {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))* |
| 120 | hostname {name}(({dot}{name})+{dot}?)? |
| 121 | |
| 122 | %s S_PL |
| 123 | |
| 124 | %% |
| 125 | |
| 126 | add { PREPROC; return(ADD); } |
| 127 | delete { PREPROC; return(DELETE); } |
| 128 | deleteall { PREPROC; return(DELETEALL); } |
| 129 | get { PREPROC; return(GET); } |
| 130 | flush { PREPROC; return(FLUSH); } |
| 131 | dump { PREPROC; return(DUMP); } |
| 132 | |
| 133 | /* for management SPD */ |
| 134 | spdadd { PREPROC; return(SPDADD); } |
| 135 | spddelete { PREPROC; return(SPDDELETE); } |
| 136 | spddump { PREPROC; return(SPDDUMP); } |
| 137 | spdflush { 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 */ |
| 158 | ah { PREPROC; yylval.num = 0; return(PR_AH); } |
| 159 | esp { PREPROC; yylval.num = 0; return(PR_ESP); } |
| 160 | ah-old { PREPROC; yylval.num = 1; return(PR_AH); } |
| 161 | esp-old { PREPROC; yylval.num = 1; return(PR_ESP); } |
| 162 | ipcomp { PREPROC; yylval.num = 0; return(PR_IPCOMP); } |
| 163 | |
| 164 | /* authentication alogorithm */ |
| 165 | {hyphen}A { PREPROC; return(F_AUTH); } |
| 166 | hmac-md5 { PREPROC; yylval.num = SADB_AALG_MD5HMAC; return(ALG_AUTH); } |
| 167 | hmac-sha1 { PREPROC; yylval.num = SADB_AALG_SHA1HMAC; return(ALG_AUTH); } |
| 168 | keyed-md5 { PREPROC; yylval.num = SADB_X_AALG_MD5; return(ALG_AUTH); } |
| 169 | keyed-sha1 { PREPROC; yylval.num = SADB_X_AALG_SHA; return(ALG_AUTH); } |
| 170 | hmac-sha2-256 { PREPROC; yylval.num = SADB_X_AALG_SHA2_256; return(ALG_AUTH); } |
| 171 | hmac-sha2-384 { PREPROC; yylval.num = SADB_X_AALG_SHA2_384; return(ALG_AUTH); } |
| 172 | hmac-sha2-512 { PREPROC; yylval.num = SADB_X_AALG_SHA2_512; return(ALG_AUTH); } |
| 173 | null { PREPROC; yylval.num = SADB_X_AALG_NULL; return(ALG_AUTH); } |
| 174 | |
| 175 | /* encryption alogorithm */ |
| 176 | {hyphen}E { PREPROC; return(F_ENC); } |
| 177 | des-cbc { PREPROC; yylval.num = SADB_EALG_DESCBC; return(ALG_ENC); } |
| 178 | 3des-cbc { PREPROC; yylval.num = SADB_EALG_3DESCBC; return(ALG_ENC); } |
| 179 | simple { PREPROC; yylval.num = SADB_EALG_NULL; return(ALG_ENC); } |
| 180 | blowfish-cbc { PREPROC; yylval.num = SADB_X_EALG_BLOWFISHCBC; return(ALG_ENC); } |
| 181 | cast128-cbc { PREPROC; yylval.num = SADB_X_EALG_CAST128CBC; return(ALG_ENC); } |
| 182 | des-deriv { PREPROC; yylval.num = SADB_EALG_DESCBC; return(ALG_ENC_DESDERIV); } |
| 183 | des-32iv { PREPROC; yylval.num = SADB_EALG_DESCBC; return(ALG_ENC_DES32IV); } |
| 184 | rijndael-cbc { PREPROC; yylval.num = SADB_X_EALG_RIJNDAELCBC; return(ALG_ENC); } |
| 185 | |
| 186 | /* compression algorithms */ |
| 187 | {hyphen}C { PREPROC; return(F_COMP); } |
| 188 | oui { PREPROC; yylval.num = SADB_X_CALG_OUI; return(ALG_COMP); } |
| 189 | deflate { PREPROC; yylval.num = SADB_X_CALG_DEFLATE; return(ALG_COMP); } |
| 190 | lzs { PREPROC; yylval.num = SADB_X_CALG_LZS; return(ALG_COMP); } |
| 191 | {hyphen}R { PREPROC; return(F_RAWCPI); } |
| 192 | |
| 193 | /* extension */ |
| 194 | {hyphen}m { PREPROC; return(F_MODE); } |
| 195 | transport { PREPROC; yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); } |
| 196 | tunnel { PREPROC; yylval.num = IPSEC_MODE_TUNNEL; return(MODE); } |
| 197 | {hyphen}u { PREPROC; return(F_REQID); } |
| 198 | {hyphen}f { PREPROC; return(F_EXT); } |
| 199 | random-pad { PREPROC; yylval.num = SADB_X_EXT_PRAND; return(EXTENSION); } |
| 200 | seq-pad { PREPROC; yylval.num = SADB_X_EXT_PSEQ; return(EXTENSION); } |
| 201 | zero-pad { PREPROC; yylval.num = SADB_X_EXT_PZERO; return(EXTENSION); } |
| 202 | nocyclic-seq { PREPROC; return(NOCYCLICSEQ); } |
| 203 | {hyphen}r { PREPROC; return(F_REPLAY); } |
| 204 | {hyphen}lh { PREPROC; return(F_LIFETIME_HARD); } |
| 205 | {hyphen}ls { PREPROC; return(F_LIFETIME_SOFT); } |
| 206 | |
| 207 | /* ... */ |
| 208 | any { PREPROC; return(ANY); } |
| 209 | {ws} { PREPROC; } |
| 210 | {nl} { lineno++; } |
| 211 | {comment} |
| 212 | {semi} { PREPROC; return(EOT); } |
| 213 | |
| 214 | /* parameter */ |
| 215 | {decstring} { |
| 216 | char *bp; |
| 217 | |
| 218 | PREPROC; |
| 219 | yylval.num = strtoul(yytext, &bp, 10); |
| 220 | return(DECSTRING); |
| 221 | } |
| 222 | |
| 223 | {ipaddress} { |
| 224 | PREPROC; |
| 225 | |
| 226 | yylval.val.len = yyleng; |
| 227 | yylval.val.buf = strdup(yytext); |
| 228 | |
| 229 | return(ADDRESS); |
| 230 | } |
| 231 | |
| 232 | {ipaddrmask} { |
| 233 | PREPROC; |
| 234 | yytext++; |
| 235 | yylval.num = atoi(yytext); |
| 236 | return(PREFIX); |
| 237 | } |
| 238 | |
| 239 | {ipaddrport} { |
| 240 | char *p = yytext; |
| 241 | PREPROC; |
| 242 | while (*++p != ']') ; |
| 243 | *p = NULL; |
| 244 | yytext++; |
| 245 | yylval.num = atoi(yytext); |
| 246 | return(PORT); |
| 247 | } |
| 248 | |
| 249 | {blcl}any{elcl} { |
| 250 | PREPROC; |
| 251 | return(PORTANY); |
| 252 | } |
| 253 | |
| 254 | {hexstring} { |
| 255 | int len = yyleng - 2; /* (str - "0x") */ |
| 256 | PREPROC; |
| 257 | yylval.val.len = (len & 1) + (len / 2); |
| 258 | /* fixed string if length is odd. */ |
| 259 | if (len & 1) { |
| 260 | yytext[1] = '0'; |
| 261 | yylval.val.buf = strdup(yytext + 1); |
| 262 | } else |
| 263 | yylval.val.buf = strdup(yytext + 2); |
| 264 | |
| 265 | return(HEXSTRING); |
| 266 | } |
| 267 | |
| 268 | {quotedstring} { |
| 269 | char *p = yytext; |
| 270 | PREPROC; |
| 271 | while (*++p != '"') ; |
| 272 | *p = NULL; |
| 273 | yytext++; |
| 274 | yylval.val.len = yyleng - 2; |
| 275 | yylval.val.buf = strdup(yytext); |
| 276 | |
| 277 | return(QUOTEDSTRING); |
| 278 | } |
| 279 | |
| 280 | [a-z0-9.\-]* { |
| 281 | yylval.val.len = yyleng; |
| 282 | yylval.val.buf = strdup(yytext); |
| 283 | return(STRING); |
| 284 | } |
| 285 | |
| 286 | . { |
| 287 | yyfatal("Syntax error"); |
| 288 | /*NOTREACHED*/ |
| 289 | } |
| 290 | |
| 291 | %% |
| 292 | |
| 293 | void |
| 294 | yyfatal(s) |
| 295 | const char *s; |
| 296 | { |
| 297 | yyerror(s); |
| 298 | exit(1); |
| 299 | } |
| 300 | |
| 301 | void |
| 302 | yyerror(s) |
| 303 | const char *s; |
| 304 | { |
| 305 | printf("line %d: %s at [%s]\n", lineno, s, yytext); |
| 306 | } |
| 307 | |
| 308 | int |
| 309 | parse(fp) |
| 310 | FILE **fp; |
| 311 | { |
| 312 | yyin = *fp; |
| 313 | |
| 314 | parse_init(); |
| 315 | |
| 316 | if (yyparse()) { |
| 317 | printf("parse failed, line %d.\n", lineno); |
| 318 | return(-1); |
| 319 | } |
| 320 | |
| 321 | return(0); |
| 322 | } |