crypto/libressl/include/openssl/asn1_mac.h

   1 /* $OpenBSD: asn1_mac.h,v 1.13 2014/06/12 15:49:27 deraadt 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