1 /* $OpenBSD: asn1_mac.h,v 1.14 2014/06/27 04:41:09 miod Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #ifndef HEADER_ASN1_MAC_H 60 #define HEADER_ASN1_MAC_H 61 62 #include <openssl/asn1.h> 63 64 #ifdef __cplusplus 65 extern "C" { 66 #endif 67 68 #ifndef ASN1_MAC_ERR_LIB 69 #define ASN1_MAC_ERR_LIB ERR_LIB_ASN1 70 #endif 71 72 #define ASN1_MAC_H_err(f,r,line) \ 73 ERR_PUT_error(ASN1_MAC_ERR_LIB,(f),(r),__FILE__,(line)) 74 75 #define M_ASN1_D2I_vars(a,type,func) \ 76 ASN1_const_CTX c; \ 77 type ret=NULL; \ 78 \ 79 c.pp=(const unsigned char **)pp; \ 80 c.q= *(const unsigned char **)pp; \ 81 c.error=ERR_R_NESTED_ASN1_ERROR; \ 82 if ((a == NULL) || ((*a) == NULL)) \ 83 { if ((ret=(type)func()) == NULL) \ 84 { c.line=__LINE__; goto err; } } \ 85 else ret=(*a); 86 87 #define M_ASN1_D2I_Init() \ 88 c.p= *(const unsigned char **)pp; \ 89 c.max=(length == 0)?0:(c.p+length); 90 91 #define M_ASN1_D2I_Finish_2(a) \ 92 if (!asn1_const_Finish(&c)) \ 93 { c.line=__LINE__; goto err; } \ 94 *(const unsigned char **)pp=c.p; \ 95 if (a != NULL) (*a)=ret; \ 96 return(ret); 97 98 #define M_ASN1_D2I_Finish(a,func,e) \ 99 M_ASN1_D2I_Finish_2(a); \ 100 err:\ 101 ASN1_MAC_H_err((e),c.error,c.line); \ 102 asn1_add_error(*(const unsigned char **)pp,(int)(c.q- *pp)); \ 103 if ((ret != NULL) && ((a == NULL) || (*a != ret))) func(ret); \ 104 return(NULL) 105 106 #define M_ASN1_D2I_start_sequence() \ 107 if (!asn1_GetSequence(&c,&length)) \ 108 { c.line=__LINE__; goto err; } 109 /* Begin reading ASN1 without a surrounding sequence */ 110 #define M_ASN1_D2I_begin() \ 111 c.slen = length; 112 113 /* End reading ASN1 with no check on length */ 114 #define M_ASN1_D2I_Finish_nolen(a, func, e) \ 115 *pp=c.p; \ 116 if (a != NULL) (*a)=ret; \ 117 return(ret); \ 118 err:\ 119 ASN1_MAC_H_err((e),c.error,c.line); \ 120 asn1_add_error(*pp,(int)(c.q- *pp)); \ 121 if ((ret != NULL) && ((a == NULL) || (*a != ret))) func(ret); \ 122 return(NULL) 123 124 #define M_ASN1_D2I_end_sequence() \ 125 (((c.inf&1) == 0)?(c.slen <= 0): \ 126 (c.eos=ASN1_const_check_infinite_end(&c.p,c.slen))) 127 128 /* Don't use this with d2i_ASN1_BOOLEAN() */ 129 #define M_ASN1_D2I_get(b, func) \ 130 c.q=c.p; \ 131 if (func(&(b),&c.p,c.slen) == NULL) \ 132 {c.line=__LINE__; goto err; } \ 133 c.slen-=(c.p-c.q); 134 135 /* Don't use this with d2i_ASN1_BOOLEAN() */ 136 #define M_ASN1_D2I_get_x(type,b,func) \ 137 c.q=c.p; \ 138 if (((D2I_OF(type))func)(&(b),&c.p,c.slen) == NULL) \ 139 {c.line=__LINE__; goto err; } \ 140 c.slen-=(c.p-c.q); 141 142 /* use this instead () */ 143 #define M_ASN1_D2I_get_int(b,func) \ 144 c.q=c.p; \ 145 if (func(&(b),&c.p,c.slen) < 0) \ 146 {c.line=__LINE__; goto err; } \ 147 c.slen-=(c.p-c.q); 148 149 #define M_ASN1_D2I_get_opt(b,func,type) \ 150 if ((c.slen != 0) && ((M_ASN1_next & (~V_ASN1_CONSTRUCTED)) \ 151 == (V_ASN1_UNIVERSAL|(type)))) \ 152 { \ 153 M_ASN1_D2I_get(b,func); \ 154 } 155 156 #define M_ASN1_D2I_get_int_opt(b,func,type) \ 157 if ((c.slen != 0) && ((M_ASN1_next & (~V_ASN1_CONSTRUCTED)) \ 158 == (V_ASN1_UNIVERSAL|(type)))) \ 159 { \ 160 M_ASN1_D2I_get_int(b,func); \ 161 } 162 163 #define M_ASN1_D2I_get_imp(b,func, type) \ 164 M_ASN1_next=(_tmp& V_ASN1_CONSTRUCTED)|type; \ 165 c.q=c.p; \ 166 if (func(&(b),&c.p,c.slen) == NULL) \ 167 {c.line=__LINE__; M_ASN1_next_prev = _tmp; goto err; } \ 168 c.slen-=(c.p-c.q);\ 169 M_ASN1_next_prev=_tmp; 170 171 #define M_ASN1_D2I_get_IMP_opt(b,func,tag,type) \ 172 if ((c.slen != 0) && ((M_ASN1_next & (~V_ASN1_CONSTRUCTED)) == \ 173 (V_ASN1_CONTEXT_SPECIFIC|(tag)))) \ 174 { \ 175 unsigned char _tmp = M_ASN1_next; \ 176 M_ASN1_D2I_get_imp(b,func, type);\ 177 } 178 179 #define M_ASN1_D2I_get_set_type(type,r,func,free_func) \ 180 M_ASN1_D2I_get_imp_set_type(type,r,func,free_func, \ 181 V_ASN1_SET,V_ASN1_UNIVERSAL); 182 183 #define M_ASN1_D2I_get_set_opt_type(type,r,func,free_func) \ 184 if ((c.slen != 0) && (M_ASN1_next == (V_ASN1_UNIVERSAL| \ 185 V_ASN1_CONSTRUCTED|V_ASN1_SET)))\ 186 { M_ASN1_D2I_get_set_type(type,r,func,free_func); } 187 188 #define M_ASN1_I2D_len_SET_opt(a,f) \ 189 if ((a != NULL) && (sk_num(a) != 0)) \ 190 M_ASN1_I2D_len_SET(a,f); 191 192 #define M_ASN1_I2D_put_SET_opt(a,f) \ 193 if ((a != NULL) && (sk_num(a) != 0)) \ 194 M_ASN1_I2D_put_SET(a,f); 195 196 #define M_ASN1_I2D_put_SEQUENCE_opt(a,f) \ 197 if ((a != NULL) && (sk_num(a) != 0)) \ 198 M_ASN1_I2D_put_SEQUENCE(a,f); 199 200 #define M_ASN1_I2D_put_SEQUENCE_opt_type(type,a,f) \ 201 if ((a != NULL) && (sk_##type##_num(a) != 0)) \ 202 M_ASN1_I2D_put_SEQUENCE_type(type,a,f); 203 204 #define M_ASN1_D2I_get_IMP_set_opt_type(type,b,func,free_func,tag) \ 205 if ((c.slen != 0) && \ 206 (M_ASN1_next == \ 207 (V_ASN1_CONTEXT_SPECIFIC|V_ASN1_CONSTRUCTED|(tag))))\ 208 { \ 209 M_ASN1_D2I_get_imp_set_type(type,b,func,free_func,\ 210 tag,V_ASN1_CONTEXT_SPECIFIC); \ 211 } 212 213 #define M_ASN1_D2I_get_seq_type(type,r,func,free_func) \ 214 M_ASN1_D2I_get_imp_set_type(type,r,func,free_func,\ 215 V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL) 216 217 #define M_ASN1_D2I_get_seq_opt_type(type,r,func,free_func) \ 218 if ((c.slen != 0) && (M_ASN1_next == (V_ASN1_UNIVERSAL| \ 219 V_ASN1_CONSTRUCTED|V_ASN1_SEQUENCE)))\ 220 { M_ASN1_D2I_get_seq_type(type,r,func,free_func); } 221 222 #define M_ASN1_D2I_get_IMP_set_type(type,r,func,free_func,x) \ 223 M_ASN1_D2I_get_imp_set_type(type,r,func,free_func,\ 224 x,V_ASN1_CONTEXT_SPECIFIC); 225 226 #define M_ASN1_D2I_get_imp_set_type(type,r,func,free_func,a,b) \ 227 c.q=c.p; \ 228 if (d2i_ASN1_SET_OF_##type(&(r),&c.p,c.slen,func,\ 229 free_func,a,b) == NULL) \ 230 { c.line=__LINE__; goto err; } \ 231 c.slen-=(c.p-c.q); 232 233 #define M_ASN1_D2I_get_set_strings(r,func,a,b) \ 234 c.q=c.p; \ 235 if (d2i_ASN1_STRING_SET(&(r),&c.p,c.slen,a,b) == NULL) \ 236 { c.line=__LINE__; goto err; } \ 237 c.slen-=(c.p-c.q); 238 239 #define M_ASN1_D2I_get_EXP_opt(r,func,tag) \ 240 if ((c.slen != 0L) && (M_ASN1_next == \ 241 (V_ASN1_CONSTRUCTED|V_ASN1_CONTEXT_SPECIFIC|tag))) \ 242 { \ 243 int Tinf,Ttag,Tclass; \ 244 long Tlen; \ 245 \ 246 c.q=c.p; \ 247 Tinf=ASN1_get_object(&c.p,&Tlen,&Ttag,&Tclass,c.slen); \ 248 if (Tinf & 0x80) \ 249 { c.error=ERR_R_BAD_ASN1_OBJECT_HEADER; \ 250 c.line=__LINE__; goto err; } \ 251 if (Tinf == (V_ASN1_CONSTRUCTED+1)) \ 252 Tlen = c.slen - (c.p - c.q) - 2; \ 253 if (func(&(r),&c.p,Tlen) == NULL) \ 254 { c.line=__LINE__; goto err; } \ 255 if (Tinf == (V_ASN1_CONSTRUCTED+1)) { \ 256 Tlen = c.slen - (c.p - c.q); \ 257 if(!ASN1_const_check_infinite_end(&c.p, Tlen)) \ 258 { c.error=ERR_R_MISSING_ASN1_EOS; \ 259 c.line=__LINE__; goto err; } \ 260 }\ 261 c.slen-=(c.p-c.q); \ 262 } 263 264 #define M_ASN1_D2I_get_EXP_set_opt_type(type,r,func,free_func,tag,b) \ 265 if ((c.slen != 0) && (M_ASN1_next == \ 266 (V_ASN1_CONSTRUCTED|V_ASN1_CONTEXT_SPECIFIC|tag))) \ 267 { \ 268 int Tinf,Ttag,Tclass; \ 269 long Tlen; \ 270 \ 271 c.q=c.p; \ 272 Tinf=ASN1_get_object(&c.p,&Tlen,&Ttag,&Tclass,c.slen); \ 273 if (Tinf & 0x80) \ 274 { c.error=ERR_R_BAD_ASN1_OBJECT_HEADER; \ 275 c.line=__LINE__; goto err; } \ 276 if (Tinf == (V_ASN1_CONSTRUCTED+1)) \ 277 Tlen = c.slen - (c.p - c.q) - 2; \ 278 if (d2i_ASN1_SET_OF_##type(&(r),&c.p,Tlen,func, \ 279 free_func,b,V_ASN1_UNIVERSAL) == NULL) \ 280 { c.line=__LINE__; goto err; } \ 281 if (Tinf == (V_ASN1_CONSTRUCTED+1)) { \ 282 Tlen = c.slen - (c.p - c.q); \ 283 if(!ASN1_check_infinite_end(&c.p, Tlen)) \ 284 { c.error=ERR_R_MISSING_ASN1_EOS; \ 285 c.line=__LINE__; goto err; } \ 286 }\ 287 c.slen-=(c.p-c.q); \ 288 } 289 290 /* BIG UGLY WARNING! This is so damn ugly I wanna puke. Unfortunately, 291 some macros that use ASN1_const_CTX still insist on writing in the input 292 stream. ARGH! ARGH! ARGH! Let's get rid of this macro package. 293 Please? -- Richard Levitte */ 294 #define M_ASN1_next (*((unsigned char *)(c.p))) 295 #define M_ASN1_next_prev (*((unsigned char *)(c.q))) 296 297 /*************************************************/ 298 299 #define M_ASN1_I2D_vars(a) int r=0,ret=0; \ 300 unsigned char *p; \ 301 if (a == NULL) return(0) 302 303 /* Length Macros */ 304 #define M_ASN1_I2D_len(a,f) ret+=f(a,NULL) 305 #define M_ASN1_I2D_len_IMP_opt(a,f) if (a != NULL) M_ASN1_I2D_len(a,f) 306 307 #define M_ASN1_I2D_len_SET_type(type,a,f) \ 308 ret+=i2d_ASN1_SET_OF_##type(a,NULL,f,V_ASN1_SET, \ 309 V_ASN1_UNIVERSAL,IS_SET); 310 311 #define M_ASN1_I2D_len_SEQUENCE_type(type,a,f) \ 312 ret+=i2d_ASN1_SET_OF_##type(a,NULL,f,V_ASN1_SEQUENCE, \ 313 V_ASN1_UNIVERSAL,IS_SEQUENCE) 314 315 #define M_ASN1_I2D_len_SEQUENCE_opt(a,f) \ 316 if ((a != NULL) && (sk_num(a) != 0)) \ 317 M_ASN1_I2D_len_SEQUENCE(a,f); 318 319 #define M_ASN1_I2D_len_SEQUENCE_opt_type(type,a,f) \ 320 if ((a != NULL) && (sk_##type##_num(a) != 0)) \ 321 M_ASN1_I2D_len_SEQUENCE_type(type,a,f); 322 323 #define M_ASN1_I2D_len_IMP_SET_type(type,a,f,x) \ 324 ret+=i2d_ASN1_SET_OF_##type(a,NULL,f,x, \ 325 V_ASN1_CONTEXT_SPECIFIC,IS_SET); 326 327 #define M_ASN1_I2D_len_IMP_SET_opt_type(type,a,f,x) \ 328 if ((a != NULL) && (sk_##type##_num(a) != 0)) \ 329 ret+=i2d_ASN1_SET_OF_##type(a,NULL,f,x, \ 330 V_ASN1_CONTEXT_SPECIFIC,IS_SET); 331 332 #define M_ASN1_I2D_len_IMP_SEQUENCE_opt_type(type,a,f,x) \ 333 if ((a != NULL) && (sk_##type##_num(a) != 0)) \ 334 ret+=i2d_ASN1_SET_OF_##type(a,NULL,f,x, \ 335 V_ASN1_CONTEXT_SPECIFIC, \ 336 IS_SEQUENCE); 337 338 #define M_ASN1_I2D_len_EXP_opt(a,f,mtag,v) \ 339 if (a != NULL)\ 340 { \ 341 v=f(a,NULL); \ 342 ret+=ASN1_object_size(1,v,mtag); \ 343 } 344 345 #define M_ASN1_I2D_len_EXP_SEQUENCE_opt_type(type,a,f,mtag,tag,v) \ 346 if ((a != NULL) && (sk_##type##_num(a) != 0))\ 347 { \ 348 v=i2d_ASN1_SET_OF_##type(a,NULL,f,tag, \ 349 V_ASN1_UNIVERSAL, \ 350 IS_SEQUENCE); \ 351 ret+=ASN1_object_size(1,v,mtag); \ 352 } 353 354 /* Put Macros */ 355 #define M_ASN1_I2D_put(a,f) f(a,&p) 356 357 #define M_ASN1_I2D_put_IMP_opt(a,f,t) \ 358 if (a != NULL) \ 359 { \ 360 unsigned char *q=p; \ 361 f(a,&p); \ 362 *q=(V_ASN1_CONTEXT_SPECIFIC|t|(*q&V_ASN1_CONSTRUCTED));\ 363 } 364 365 #define M_ASN1_I2D_put_SET_type(type,a,f) \ 366 i2d_ASN1_SET_OF_##type(a,&p,f,V_ASN1_SET,V_ASN1_UNIVERSAL,IS_SET) 367 #define M_ASN1_I2D_put_IMP_SET_type(type,a,f,x) \ 368 i2d_ASN1_SET_OF_##type(a,&p,f,x,V_ASN1_CONTEXT_SPECIFIC,IS_SET) 369 370 #define M_ASN1_I2D_put_SEQUENCE_type(type,a,f) \ 371 i2d_ASN1_SET_OF_##type(a,&p,f,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL, \ 372 IS_SEQUENCE) 373 374 #define M_ASN1_I2D_put_SEQUENCE_opt(a,f) \ 375 if ((a != NULL) && (sk_num(a) != 0)) \ 376 M_ASN1_I2D_put_SEQUENCE(a,f); 377 378 #define M_ASN1_I2D_put_IMP_SET_opt_type(type,a,f,x) \ 379 if ((a != NULL) && (sk_##type##_num(a) != 0)) \ 380 { i2d_ASN1_SET_OF_##type(a,&p,f,x, \ 381 V_ASN1_CONTEXT_SPECIFIC, \ 382 IS_SET); } 383 384 #define M_ASN1_I2D_put_IMP_SEQUENCE_opt_type(type,a,f,x) \ 385 if ((a != NULL) && (sk_##type##_num(a) != 0)) \ 386 { i2d_ASN1_SET_OF_##type(a,&p,f,x, \ 387 V_ASN1_CONTEXT_SPECIFIC, \ 388 IS_SEQUENCE); } 389 390 #define M_ASN1_I2D_put_EXP_opt(a,f,tag,v) \ 391 if (a != NULL) \ 392 { \ 393 ASN1_put_object(&p,1,v,tag,V_ASN1_CONTEXT_SPECIFIC); \ 394 f(a,&p); \ 395 } 396 397 #define M_ASN1_I2D_put_EXP_SEQUENCE_opt_type(type,a,f,mtag,tag,v) \ 398 if ((a != NULL) && (sk_##type##_num(a) != 0)) \ 399 { \ 400 ASN1_put_object(&p,1,v,mtag,V_ASN1_CONTEXT_SPECIFIC); \ 401 i2d_ASN1_SET_OF_##type(a,&p,f,tag,V_ASN1_UNIVERSAL, \ 402 IS_SEQUENCE); \ 403 } 404 405 #define M_ASN1_I2D_seq_total() \ 406 r=ASN1_object_size(1,ret,V_ASN1_SEQUENCE); \ 407 if (pp == NULL) return(r); \ 408 p= *pp; \ 409 ASN1_put_object(&p,1,ret,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL) 410 411 #define M_ASN1_I2D_INF_seq_start(tag,ctx) \ 412 *(p++)=(V_ASN1_CONSTRUCTED|(tag)|(ctx)); \ 413 *(p++)=0x80 414 415 #define M_ASN1_I2D_INF_seq_end() *(p++)=0x00; *(p++)=0x00 416 417 #define M_ASN1_I2D_finish() *pp=p; \ 418 return(r); 419 420 int asn1_GetSequence(ASN1_const_CTX *c, long *length); 421 void asn1_add_error(const unsigned char *address, int offset); 422 #ifdef __cplusplus 423 } 424 #endif 425 426 #endif 427