release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/sysroot/usr/include/openssl/asn1t.h

   1 /* asn1t.h */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2000-2005 The OpenSSL Project.  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  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58 #ifndef HEADER_ASN1T_H
  59 #define HEADER_ASN1T_H
  60
  61 #include <stddef.h>
  62 #include <openssl/e_os2.h>
  63 #include <openssl/asn1.h>
  64
  65 #ifdef OPENSSL_BUILD_SHLIBCRYPTO
  66 # undef OPENSSL_EXTERN
  67 # define OPENSSL_EXTERN OPENSSL_EXPORT
  68 #endif
  69
  70 /* ASN1 template defines, structures and functions */
  71
  72 #ifdef  __cplusplus
  73 extern "C" {
  74 #endif
  75
  76
  77 #ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION
  78
  79 /* Macro to obtain ASN1_ADB pointer from a type (only used internally) */
  80 #define ASN1_ADB_ptr(iptr) ((const ASN1_ADB *)(iptr))
  81
  82
  83 /* Macros for start and end of ASN1_ITEM definition */
  84
  85 #define ASN1_ITEM_start(itname) \
  86         OPENSSL_GLOBAL const ASN1_ITEM itname##_it = {
  87
  88 #define ASN1_ITEM_end(itname) \
  89                 };
  90
  91 #else
  92
  93 /* Macro to obtain ASN1_ADB pointer from a type (only used internally) */
  94 #define ASN1_ADB_ptr(iptr) ((const ASN1_ADB *)(iptr()))
  95
  96
  97 /* Macros for start and end of ASN1_ITEM definition */
  98
  99 #define ASN1_ITEM_start(itname) \
 100         const ASN1_ITEM * itname##_it(void) \
 101         { \
 102                 static const ASN1_ITEM local_it = {
 103
 104 #define ASN1_ITEM_end(itname) \
 105                 }; \
 106         return &local_it; \
 107         }
 108
 109 #endif
 110
 111
 112 /* Macros to aid ASN1 template writing */
 113
 114 #define ASN1_ITEM_TEMPLATE(tname) \
 115         static const ASN1_TEMPLATE tname##_item_tt
 116
 117 #define ASN1_ITEM_TEMPLATE_END(tname) \
 118         ;\
 119         ASN1_ITEM_start(tname) \
 120                 ASN1_ITYPE_PRIMITIVE,\
 121                 -1,\
 122                 &tname##_item_tt,\
 123                 0,\
 124                 NULL,\
 125                 0,\
 126                 #tname \
 127         ASN1_ITEM_end(tname)
 128
 129
 130 /* This is a ASN1 type which just embeds a template */
 131
 132 /* This pair helps declare a SEQUENCE. We can do:
 133  *
 134  *      ASN1_SEQUENCE(stname) = {
 135  *              ... SEQUENCE components ...
 136  *      } ASN1_SEQUENCE_END(stname)
 137  *
 138  *      This will produce an ASN1_ITEM called stname_it
 139  *      for a structure called stname.
 140  *
 141  *      If you want the same structure but a different
 142  *      name then use:
 143  *
 144  *      ASN1_SEQUENCE(itname) = {
 145  *              ... SEQUENCE components ...
 146  *      } ASN1_SEQUENCE_END_name(stname, itname)
 147  *
 148  *      This will create an item called itname_it using
 149  *      a structure called stname.
 150  */
 151
 152 #define ASN1_SEQUENCE(tname) \
 153         static const ASN1_TEMPLATE tname##_seq_tt[]
 154
 155 #define ASN1_SEQUENCE_END(stname) ASN1_SEQUENCE_END_name(stname, stname)
 156
 157 #define ASN1_SEQUENCE_END_name(stname, tname) \
 158         ;\
 159         ASN1_ITEM_start(tname) \
 160                 ASN1_ITYPE_SEQUENCE,\
 161                 V_ASN1_SEQUENCE,\
 162                 tname##_seq_tt,\
 163                 sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\
 164                 NULL,\
 165                 sizeof(stname),\
 166                 #stname \
 167         ASN1_ITEM_end(tname)
 168
 169 #define ASN1_NDEF_SEQUENCE(tname) \
 170         ASN1_SEQUENCE(tname)
 171
 172 #define ASN1_NDEF_SEQUENCE_cb(tname, cb) \
 173         ASN1_SEQUENCE_cb(tname, cb)
 174
 175 #define ASN1_SEQUENCE_cb(tname, cb) \
 176         static const ASN1_AUX tname##_aux = {NULL, 0, 0, 0, cb, 0}; \
 177         ASN1_SEQUENCE(tname)
 178
 179 #define ASN1_BROKEN_SEQUENCE(tname) \
 180         static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_BROKEN, 0, 0, 0, 0}; \
 181         ASN1_SEQUENCE(tname)
 182
 183 #define ASN1_SEQUENCE_ref(tname, cb, lck) \
 184         static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_REFCOUNT, offsetof(tname, references), lck, cb, 0}; \
 185         ASN1_SEQUENCE(tname)
 186
 187 #define ASN1_SEQUENCE_enc(tname, enc, cb) \
 188         static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_ENCODING, 0, 0, cb, offsetof(tname, enc)}; \
 189         ASN1_SEQUENCE(tname)
 190
 191 #define ASN1_NDEF_SEQUENCE_END(tname) \
 192         ;\
 193         ASN1_ITEM_start(tname) \
 194                 ASN1_ITYPE_NDEF_SEQUENCE,\
 195                 V_ASN1_SEQUENCE,\
 196                 tname##_seq_tt,\
 197                 sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\
 198                 NULL,\
 199                 sizeof(tname),\
 200                 #tname \
 201         ASN1_ITEM_end(tname)
 202
 203 #define ASN1_BROKEN_SEQUENCE_END(stname) ASN1_SEQUENCE_END_ref(stname, stname)
 204
 205 #define ASN1_SEQUENCE_END_enc(stname, tname) ASN1_SEQUENCE_END_ref(stname, tname)
 206
 207 #define ASN1_SEQUENCE_END_cb(stname, tname) ASN1_SEQUENCE_END_ref(stname, tname)
 208
 209 #define ASN1_SEQUENCE_END_ref(stname, tname) \
 210         ;\
 211         ASN1_ITEM_start(tname) \
 212                 ASN1_ITYPE_SEQUENCE,\
 213                 V_ASN1_SEQUENCE,\
 214                 tname##_seq_tt,\
 215                 sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\
 216                 &tname##_aux,\
 217                 sizeof(stname),\
 218                 #stname \
 219         ASN1_ITEM_end(tname)
 220
 221 #define ASN1_NDEF_SEQUENCE_END_cb(stname, tname) \
 222         ;\
 223         ASN1_ITEM_start(tname) \
 224                 ASN1_ITYPE_NDEF_SEQUENCE,\
 225                 V_ASN1_SEQUENCE,\
 226                 tname##_seq_tt,\
 227                 sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\
 228                 &tname##_aux,\
 229                 sizeof(stname),\
 230                 #stname \
 231         ASN1_ITEM_end(tname)
 232
 233
 234 /* This pair helps declare a CHOICE type. We can do:
 235  *
 236  *      ASN1_CHOICE(chname) = {
 237  *              ... CHOICE options ...
 238  *      ASN1_CHOICE_END(chname)
 239  *
 240  *      This will produce an ASN1_ITEM called chname_it
 241  *      for a structure called chname. The structure
 242  *      definition must look like this:
 243  *      typedef struct {
 244  *              int type;
 245  *              union {
 246  *                      ASN1_SOMETHING *opt1;
 247  *                      ASN1_SOMEOTHER *opt2;
 248  *              } value;
 249  *      } chname;
 250  *
 251  *      the name of the selector must be 'type'.
 252  *      to use an alternative selector name use the
 253  *      ASN1_CHOICE_END_selector() version.
 254  */
 255
 256 #define ASN1_CHOICE(tname) \
 257         static const ASN1_TEMPLATE tname##_ch_tt[]
 258
 259 #define ASN1_CHOICE_cb(tname, cb) \
 260         static const ASN1_AUX tname##_aux = {NULL, 0, 0, 0, cb, 0}; \
 261         ASN1_CHOICE(tname)
 262
 263 #define ASN1_CHOICE_END(stname) ASN1_CHOICE_END_name(stname, stname)
 264
 265 #define ASN1_CHOICE_END_name(stname, tname) ASN1_CHOICE_END_selector(stname, tname, type)
 266
 267 #define ASN1_CHOICE_END_selector(stname, tname, selname) \
 268         ;\
 269         ASN1_ITEM_start(tname) \
 270                 ASN1_ITYPE_CHOICE,\
 271                 offsetof(stname,selname) ,\
 272                 tname##_ch_tt,\
 273                 sizeof(tname##_ch_tt) / sizeof(ASN1_TEMPLATE),\
 274                 NULL,\
 275                 sizeof(stname),\
 276                 #stname \
 277         ASN1_ITEM_end(tname)
 278
 279 #define ASN1_CHOICE_END_cb(stname, tname, selname) \
 280         ;\
 281         ASN1_ITEM_start(tname) \
 282                 ASN1_ITYPE_CHOICE,\
 283                 offsetof(stname,selname) ,\
 284                 tname##_ch_tt,\
 285                 sizeof(tname##_ch_tt) / sizeof(ASN1_TEMPLATE),\
 286                 &tname##_aux,\
 287                 sizeof(stname),\
 288                 #stname \
 289         ASN1_ITEM_end(tname)
 290
 291 /* This helps with the template wrapper form of ASN1_ITEM */
 292
 293 #define ASN1_EX_TEMPLATE_TYPE(flags, tag, name, type) { \
 294         (flags), (tag), 0,\
 295         #name, ASN1_ITEM_ref(type) }
 296
 297 /* These help with SEQUENCE or CHOICE components */
 298
 299 /* used to declare other types */
 300
 301 #define ASN1_EX_TYPE(flags, tag, stname, field, type) { \
 302         (flags), (tag), offsetof(stname, field),\
 303         #field, ASN1_ITEM_ref(type) }
 304
 305 /* used when the structure is combined with the parent */
 306
 307 #define ASN1_EX_COMBINE(flags, tag, type) { \
 308         (flags)|ASN1_TFLG_COMBINE, (tag), 0, NULL, ASN1_ITEM_ref(type) }
 309
 310 /* implicit and explicit helper macros */
 311
 312 #define ASN1_IMP_EX(stname, field, type, tag, ex) \
 313                 ASN1_EX_TYPE(ASN1_TFLG_IMPLICIT | ex, tag, stname, field, type)
 314
 315 #define ASN1_EXP_EX(stname, field, type, tag, ex) \
 316                 ASN1_EX_TYPE(ASN1_TFLG_EXPLICIT | ex, tag, stname, field, type)
 317
 318 /* Any defined by macros: the field used is in the table itself */
 319
 320 #ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION
 321 #define ASN1_ADB_OBJECT(tblname) { ASN1_TFLG_ADB_OID, -1, 0, #tblname, (const ASN1_ITEM *)&(tblname##_adb) }
 322 #define ASN1_ADB_INTEGER(tblname) { ASN1_TFLG_ADB_INT, -1, 0, #tblname, (const ASN1_ITEM *)&(tblname##_adb) }
 323 #else
 324 #define ASN1_ADB_OBJECT(tblname) { ASN1_TFLG_ADB_OID, -1, 0, #tblname, tblname##_adb }
 325 #define ASN1_ADB_INTEGER(tblname) { ASN1_TFLG_ADB_INT, -1, 0, #tblname, tblname##_adb }
 326 #endif
 327 /* Plain simple type */
 328 #define ASN1_SIMPLE(stname, field, type) ASN1_EX_TYPE(0,0, stname, field, type)
 329
 330 /* OPTIONAL simple type */
 331 #define ASN1_OPT(stname, field, type) ASN1_EX_TYPE(ASN1_TFLG_OPTIONAL, 0, stname, field, type)
 332
 333 /* IMPLICIT tagged simple type */
 334 #define ASN1_IMP(stname, field, type, tag) ASN1_IMP_EX(stname, field, type, tag, 0)
 335
 336 /* IMPLICIT tagged OPTIONAL simple type */
 337 #define ASN1_IMP_OPT(stname, field, type, tag) ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL)
 338
 339 /* Same as above but EXPLICIT */
 340
 341 #define ASN1_EXP(stname, field, type, tag) ASN1_EXP_EX(stname, field, type, tag, 0)
 342 #define ASN1_EXP_OPT(stname, field, type, tag) ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL)
 343
 344 /* SEQUENCE OF type */
 345 #define ASN1_SEQUENCE_OF(stname, field, type) \
 346                 ASN1_EX_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, stname, field, type)
 347
 348 /* OPTIONAL SEQUENCE OF */
 349 #define ASN1_SEQUENCE_OF_OPT(stname, field, type) \
 350                 ASN1_EX_TYPE(ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL, 0, stname, field, type)
 351
 352 /* Same as above but for SET OF */
 353
 354 #define ASN1_SET_OF(stname, field, type) \
 355                 ASN1_EX_TYPE(ASN1_TFLG_SET_OF, 0, stname, field, type)
 356
 357 #define ASN1_SET_OF_OPT(stname, field, type) \
 358                 ASN1_EX_TYPE(ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL, 0, stname, field, type)
 359
 360 /* Finally compound types of SEQUENCE, SET, IMPLICIT, EXPLICIT and OPTIONAL */
 361
 362 #define ASN1_IMP_SET_OF(stname, field, type, tag) \
 363                         ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF)
 364
 365 #define ASN1_EXP_SET_OF(stname, field, type, tag) \
 366                         ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF)
 367
 368 #define ASN1_IMP_SET_OF_OPT(stname, field, type, tag) \
 369                         ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL)
 370
 371 #define ASN1_EXP_SET_OF_OPT(stname, field, type, tag) \
 372                         ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL)
 373
 374 #define ASN1_IMP_SEQUENCE_OF(stname, field, type, tag) \
 375                         ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF)
 376
 377 #define ASN1_IMP_SEQUENCE_OF_OPT(stname, field, type, tag) \
 378                         ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL)
 379
 380 #define ASN1_EXP_SEQUENCE_OF(stname, field, type, tag) \
 381                         ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF)
 382
 383 #define ASN1_EXP_SEQUENCE_OF_OPT(stname, field, type, tag) \
 384                         ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL)
 385
 386 /* EXPLICIT using indefinite length constructed form */
 387 #define ASN1_NDEF_EXP(stname, field, type, tag) \
 388                         ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_NDEF)
 389
 390 /* EXPLICIT OPTIONAL using indefinite length constructed form */
 391 #define ASN1_NDEF_EXP_OPT(stname, field, type, tag) \
 392                         ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL|ASN1_TFLG_NDEF)
 393
 394 /* Macros for the ASN1_ADB structure */
 395
 396 #define ASN1_ADB(name) \
 397         static const ASN1_ADB_TABLE name##_adbtbl[]
 398
 399 #ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION
 400
 401 #define ASN1_ADB_END(name, flags, field, app_table, def, none) \
 402         ;\
 403         static const ASN1_ADB name##_adb = {\
 404                 flags,\
 405                 offsetof(name, field),\
 406                 app_table,\
 407                 name##_adbtbl,\
 408                 sizeof(name##_adbtbl) / sizeof(ASN1_ADB_TABLE),\
 409                 def,\
 410                 none\
 411         }
 412
 413 #else
 414
 415 #define ASN1_ADB_END(name, flags, field, app_table, def, none) \
 416         ;\
 417         static const ASN1_ITEM *name##_adb(void) \
 418         { \
 419         static const ASN1_ADB internal_adb = \
 420                 {\
 421                 flags,\
 422                 offsetof(name, field),\
 423                 app_table,\
 424                 name##_adbtbl,\
 425                 sizeof(name##_adbtbl) / sizeof(ASN1_ADB_TABLE),\
 426                 def,\
 427                 none\
 428                 }; \
 429                 return (const ASN1_ITEM *) &internal_adb; \
 430         } \
 431         void dummy_function(void)
 432
 433 #endif
 434
 435 #define ADB_ENTRY(val, template) {val, template}
 436
 437 #define ASN1_ADB_TEMPLATE(name) \
 438         static const ASN1_TEMPLATE name##_tt
 439
 440 /* This is the ASN1 template structure that defines
 441  * a wrapper round the actual type. It determines the
 442  * actual position of the field in the value structure,
 443  * various flags such as OPTIONAL and the field name.
 444  */
 445
 446 struct ASN1_TEMPLATE_st {
 447 unsigned long flags;            /* Various flags */
 448 long tag;                       /* tag, not used if no tagging */
 449 unsigned long offset;           /* Offset of this field in structure */
 450 #ifndef NO_ASN1_FIELD_NAMES
 451 const char *field_name;         /* Field name */
 452 #endif
 453 ASN1_ITEM_EXP *item;            /* Relevant ASN1_ITEM or ASN1_ADB */
 454 };
 455
 456 /* Macro to extract ASN1_ITEM and ASN1_ADB pointer from ASN1_TEMPLATE */
 457
 458 #define ASN1_TEMPLATE_item(t) (t->item_ptr)
 459 #define ASN1_TEMPLATE_adb(t) (t->item_ptr)
 460
 461 typedef struct ASN1_ADB_TABLE_st ASN1_ADB_TABLE;
 462 typedef struct ASN1_ADB_st ASN1_ADB;
 463
 464 struct ASN1_ADB_st {
 465         unsigned long flags;    /* Various flags */
 466         unsigned long offset;   /* Offset of selector field */
 467         STACK_OF(ASN1_ADB_TABLE) **app_items; /* Application defined items */
 468         const ASN1_ADB_TABLE *tbl;      /* Table of possible types */
 469         long tblcount;          /* Number of entries in tbl */
 470         const ASN1_TEMPLATE *default_tt;  /* Type to use if no match */
 471         const ASN1_TEMPLATE *null_tt;  /* Type to use if selector is NULL */
 472 };
 473
 474 struct ASN1_ADB_TABLE_st {
 475         long value;             /* NID for an object or value for an int */
 476         const ASN1_TEMPLATE tt;         /* item for this value */
 477 };
 478
 479 /* template flags */
 480
 481 /* Field is optional */
 482 #define ASN1_TFLG_OPTIONAL      (0x1)
 483
 484 /* Field is a SET OF */
 485 #define ASN1_TFLG_SET_OF        (0x1 << 1)
 486
 487 /* Field is a SEQUENCE OF */
 488 #define ASN1_TFLG_SEQUENCE_OF   (0x2 << 1)
 489
 490 /* Special case: this refers to a SET OF that
 491  * will be sorted into DER order when encoded *and*
 492  * the corresponding STACK will be modified to match
 493  * the new order.
 494  */
 495 #define ASN1_TFLG_SET_ORDER     (0x3 << 1)
 496
 497 /* Mask for SET OF or SEQUENCE OF */
 498 #define ASN1_TFLG_SK_MASK       (0x3 << 1)
 499
 500 /* These flags mean the tag should be taken from the
 501  * tag field. If EXPLICIT then the underlying type
 502  * is used for the inner tag.
 503  */
 504
 505 /* IMPLICIT tagging */
 506 #define ASN1_TFLG_IMPTAG        (0x1 << 3)
 507
 508
 509 /* EXPLICIT tagging, inner tag from underlying type */
 510 #define ASN1_TFLG_EXPTAG        (0x2 << 3)
 511
 512 #define ASN1_TFLG_TAG_MASK      (0x3 << 3)
 513
 514 /* context specific IMPLICIT */
 515 #define ASN1_TFLG_IMPLICIT      ASN1_TFLG_IMPTAG|ASN1_TFLG_CONTEXT
 516
 517 /* context specific EXPLICIT */
 518 #define ASN1_TFLG_EXPLICIT      ASN1_TFLG_EXPTAG|ASN1_TFLG_CONTEXT
 519
 520 /* If tagging is in force these determine the
 521  * type of tag to use. Otherwise the tag is
 522  * determined by the underlying type. These
 523  * values reflect the actual octet format.
 524  */
 525
 526 /* Universal tag */
 527 #define ASN1_TFLG_UNIVERSAL     (0x0<<6)
 528 /* Application tag */
 529 #define ASN1_TFLG_APPLICATION   (0x1<<6)
 530 /* Context specific tag */
 531 #define ASN1_TFLG_CONTEXT       (0x2<<6)
 532 /* Private tag */
 533 #define ASN1_TFLG_PRIVATE       (0x3<<6)
 534
 535 #define ASN1_TFLG_TAG_CLASS     (0x3<<6)
 536
 537 /* These are for ANY DEFINED BY type. In this case
 538  * the 'item' field points to an ASN1_ADB structure
 539  * which contains a table of values to decode the
 540  * relevant type
 541  */
 542
 543 #define ASN1_TFLG_ADB_MASK      (0x3<<8)
 544
 545 #define ASN1_TFLG_ADB_OID       (0x1<<8)
 546
 547 #define ASN1_TFLG_ADB_INT       (0x1<<9)
 548
 549 /* This flag means a parent structure is passed
 550  * instead of the field: this is useful is a
 551  * SEQUENCE is being combined with a CHOICE for
 552  * example. Since this means the structure and
 553  * item name will differ we need to use the
 554  * ASN1_CHOICE_END_name() macro for example.
 555  */
 556
 557 #define ASN1_TFLG_COMBINE       (0x1<<10)
 558
 559 /* This flag when present in a SEQUENCE OF, SET OF
 560  * or EXPLICIT causes indefinite length constructed
 561  * encoding to be used if required.
 562  */
 563
 564 #define ASN1_TFLG_NDEF          (0x1<<11)
 565
 566 /* This is the actual ASN1 item itself */
 567
 568 struct ASN1_ITEM_st {
 569 char itype;                     /* The item type, primitive, SEQUENCE, CHOICE or extern */
 570 long utype;                     /* underlying type */
 571 const ASN1_TEMPLATE *templates; /* If SEQUENCE or CHOICE this contains the contents */
 572 long tcount;                    /* Number of templates if SEQUENCE or CHOICE */
 573 const void *funcs;              /* functions that handle this type */
 574 long size;                      /* Structure size (usually)*/
 575 #ifndef NO_ASN1_FIELD_NAMES
 576 const char *sname;              /* Structure name */
 577 #endif
 578 };
 579
 580 /* These are values for the itype field and
 581  * determine how the type is interpreted.
 582  *
 583  * For PRIMITIVE types the underlying type
 584  * determines the behaviour if items is NULL.
 585  *
 586  * Otherwise templates must contain a single
 587  * template and the type is treated in the
 588  * same way as the type specified in the template.
 589  *
 590  * For SEQUENCE types the templates field points
 591  * to the members, the size field is the
 592  * structure size.
 593  *
 594  * For CHOICE types the templates field points
 595  * to each possible member (typically a union)
 596  * and the 'size' field is the offset of the
 597  * selector.
 598  *
 599  * The 'funcs' field is used for application
 600  * specific functions.
 601  *
 602  * For COMPAT types the funcs field gives a
 603  * set of functions that handle this type, this
 604  * supports the old d2i, i2d convention.
 605  *
 606  * The EXTERN type uses a new style d2i/i2d.
 607  * The new style should be used where possible
 608  * because it avoids things like the d2i IMPLICIT
 609  * hack.
 610  *
 611  * MSTRING is a multiple string type, it is used
 612  * for a CHOICE of character strings where the
 613  * actual strings all occupy an ASN1_STRING
 614  * structure. In this case the 'utype' field
 615  * has a special meaning, it is used as a mask
 616  * of acceptable types using the B_ASN1 constants.
 617  *
 618  * NDEF_SEQUENCE is the same as SEQUENCE except
 619  * that it will use indefinite length constructed
 620  * encoding if requested.
 621  *
 622  */
 623
 624 #define ASN1_ITYPE_PRIMITIVE            0x0
 625
 626 #define ASN1_ITYPE_SEQUENCE             0x1
 627
 628 #define ASN1_ITYPE_CHOICE               0x2
 629
 630 #define ASN1_ITYPE_COMPAT               0x3
 631
 632 #define ASN1_ITYPE_EXTERN               0x4
 633
 634 #define ASN1_ITYPE_MSTRING              0x5
 635
 636 #define ASN1_ITYPE_NDEF_SEQUENCE        0x6
 637
 638 /* Cache for ASN1 tag and length, so we
 639  * don't keep re-reading it for things
 640  * like CHOICE
 641  */
 642
 643 struct ASN1_TLC_st{
 644         char valid;     /* Values below are valid */
 645         int ret;        /* return value */
 646         long plen;      /* length */
 647         int ptag;       /* class value */
 648         int pclass;     /* class value */
 649         int hdrlen;     /* header length */
 650 };
 651
 652 /* Typedefs for ASN1 function pointers */
 653
 654 typedef ASN1_VALUE * ASN1_new_func(void);
 655 typedef void ASN1_free_func(ASN1_VALUE *a);
 656 typedef ASN1_VALUE * ASN1_d2i_func(ASN1_VALUE **a, const unsigned char ** in, long length);
 657 typedef int ASN1_i2d_func(ASN1_VALUE * a, unsigned char **in);
 658
 659 typedef int ASN1_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, const ASN1_ITEM *it,
 660                                         int tag, int aclass, char opt, ASN1_TLC *ctx);
 661
 662 typedef int ASN1_ex_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass);
 663 typedef int ASN1_ex_new_func(ASN1_VALUE **pval, const ASN1_ITEM *it);
 664 typedef void ASN1_ex_free_func(ASN1_VALUE **pval, const ASN1_ITEM *it);
 665
 666 typedef int ASN1_ex_print_func(BIO *out, ASN1_VALUE **pval,
 667                                                 int indent, const char *fname,
 668                                                 const ASN1_PCTX *pctx);
 669
 670 typedef int ASN1_primitive_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype, const ASN1_ITEM *it);
 671 typedef int ASN1_primitive_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len, int utype, char *free_cont, const ASN1_ITEM *it);
 672 typedef int ASN1_primitive_print(BIO *out, ASN1_VALUE **pval, const ASN1_ITEM *it, int indent, const ASN1_PCTX *pctx);
 673
 674 typedef struct ASN1_COMPAT_FUNCS_st {
 675         ASN1_new_func *asn1_new;
 676         ASN1_free_func *asn1_free;
 677         ASN1_d2i_func *asn1_d2i;
 678         ASN1_i2d_func *asn1_i2d;
 679 } ASN1_COMPAT_FUNCS;
 680
 681 typedef struct ASN1_EXTERN_FUNCS_st {
 682         void *app_data;
 683         ASN1_ex_new_func *asn1_ex_new;
 684         ASN1_ex_free_func *asn1_ex_free;
 685         ASN1_ex_free_func *asn1_ex_clear;
 686         ASN1_ex_d2i *asn1_ex_d2i;
 687         ASN1_ex_i2d *asn1_ex_i2d;
 688         ASN1_ex_print_func *asn1_ex_print;
 689 } ASN1_EXTERN_FUNCS;
 690
 691 typedef struct ASN1_PRIMITIVE_FUNCS_st {
 692         void *app_data;
 693         unsigned long flags;
 694         ASN1_ex_new_func *prim_new;
 695         ASN1_ex_free_func *prim_free;
 696         ASN1_ex_free_func *prim_clear;
 697         ASN1_primitive_c2i *prim_c2i;
 698         ASN1_primitive_i2c *prim_i2c;
 699         ASN1_primitive_print *prim_print;
 700 } ASN1_PRIMITIVE_FUNCS;
 701
 702 /* This is the ASN1_AUX structure: it handles various
 703  * miscellaneous requirements. For example the use of
 704  * reference counts and an informational callback.
 705  *
 706  * The "informational callback" is called at various
 707  * points during the ASN1 encoding and decoding. It can
 708  * be used to provide minor customisation of the structures
 709  * used. This is most useful where the supplied routines
 710  * *almost* do the right thing but need some extra help
 711  * at a few points. If the callback returns zero then
 712  * it is assumed a fatal error has occurred and the
 713  * main operation should be abandoned.
 714  *
 715  * If major changes in the default behaviour are required
 716  * then an external type is more appropriate.
 717  */
 718
 719 typedef int ASN1_aux_cb(int operation, ASN1_VALUE **in, const ASN1_ITEM *it,
 720                                 void *exarg);
 721
 722 typedef struct ASN1_AUX_st {
 723         void *app_data;
 724         int flags;
 725         int ref_offset;         /* Offset of reference value */
 726         int ref_lock;           /* Lock type to use */
 727         ASN1_aux_cb *asn1_cb;
 728         int enc_offset;         /* Offset of ASN1_ENCODING structure */
 729 } ASN1_AUX;
 730
 731 /* For print related callbacks exarg points to this structure */
 732 typedef struct ASN1_PRINT_ARG_st {
 733         BIO *out;
 734         int indent;
 735         const ASN1_PCTX *pctx;
 736 } ASN1_PRINT_ARG;
 737
 738 /* For streaming related callbacks exarg points to this structure */
 739 typedef struct ASN1_STREAM_ARG_st {
 740         /* BIO to stream through */
 741         BIO *out;
 742         /* BIO with filters appended */
 743         BIO *ndef_bio;
 744         /* Streaming I/O boundary */
 745         unsigned char **boundary;
 746 } ASN1_STREAM_ARG;
 747
 748 /* Flags in ASN1_AUX */
 749
 750 /* Use a reference count */
 751 #define ASN1_AFLG_REFCOUNT      1
 752 /* Save the encoding of structure (useful for signatures) */
 753 #define ASN1_AFLG_ENCODING      2
 754 /* The Sequence length is invalid */
 755 #define ASN1_AFLG_BROKEN        4
 756
 757 /* operation values for asn1_cb */
 758
 759 #define ASN1_OP_NEW_PRE         0
 760 #define ASN1_OP_NEW_POST        1
 761 #define ASN1_OP_FREE_PRE        2
 762 #define ASN1_OP_FREE_POST       3
 763 #define ASN1_OP_D2I_PRE         4
 764 #define ASN1_OP_D2I_POST        5
 765 #define ASN1_OP_I2D_PRE         6
 766 #define ASN1_OP_I2D_POST        7
 767 #define ASN1_OP_PRINT_PRE       8
 768 #define ASN1_OP_PRINT_POST      9
 769 #define ASN1_OP_STREAM_PRE      10
 770 #define ASN1_OP_STREAM_POST     11
 771 #define ASN1_OP_DETACHED_PRE    12
 772 #define ASN1_OP_DETACHED_POST   13
 773
 774 /* Macro to implement a primitive type */
 775 #define IMPLEMENT_ASN1_TYPE(stname) IMPLEMENT_ASN1_TYPE_ex(stname, stname, 0)
 776 #define IMPLEMENT_ASN1_TYPE_ex(itname, vname, ex) \
 777                                 ASN1_ITEM_start(itname) \
 778                                         ASN1_ITYPE_PRIMITIVE, V_##vname, NULL, 0, NULL, ex, #itname \
 779                                 ASN1_ITEM_end(itname)
 780
 781 /* Macro to implement a multi string type */
 782 #define IMPLEMENT_ASN1_MSTRING(itname, mask) \
 783                                 ASN1_ITEM_start(itname) \
 784                                         ASN1_ITYPE_MSTRING, mask, NULL, 0, NULL, sizeof(ASN1_STRING), #itname \
 785                                 ASN1_ITEM_end(itname)
 786
 787 /* Macro to implement an ASN1_ITEM in terms of old style funcs */
 788
 789 #define IMPLEMENT_COMPAT_ASN1(sname) IMPLEMENT_COMPAT_ASN1_type(sname, V_ASN1_SEQUENCE)
 790
 791 #define IMPLEMENT_COMPAT_ASN1_type(sname, tag) \
 792         static const ASN1_COMPAT_FUNCS sname##_ff = { \
 793                 (ASN1_new_func *)sname##_new, \
 794                 (ASN1_free_func *)sname##_free, \
 795                 (ASN1_d2i_func *)d2i_##sname, \
 796                 (ASN1_i2d_func *)i2d_##sname, \
 797         }; \
 798         ASN1_ITEM_start(sname) \
 799                 ASN1_ITYPE_COMPAT, \
 800                 tag, \
 801                 NULL, \
 802                 0, \
 803                 &sname##_ff, \
 804                 0, \
 805                 #sname \
 806         ASN1_ITEM_end(sname)
 807
 808 #define IMPLEMENT_EXTERN_ASN1(sname, tag, fptrs) \
 809         ASN1_ITEM_start(sname) \
 810                 ASN1_ITYPE_EXTERN, \
 811                 tag, \
 812                 NULL, \
 813                 0, \
 814                 &fptrs, \
 815                 0, \
 816                 #sname \
 817         ASN1_ITEM_end(sname)
 818
 819 /* Macro to implement standard functions in terms of ASN1_ITEM structures */
 820
 821 #define IMPLEMENT_ASN1_FUNCTIONS(stname) IMPLEMENT_ASN1_FUNCTIONS_fname(stname, stname, stname)
 822
 823 #define IMPLEMENT_ASN1_FUNCTIONS_name(stname, itname) IMPLEMENT_ASN1_FUNCTIONS_fname(stname, itname, itname)
 824
 825 #define IMPLEMENT_ASN1_FUNCTIONS_ENCODE_name(stname, itname) \
 826                         IMPLEMENT_ASN1_FUNCTIONS_ENCODE_fname(stname, itname, itname)
 827
 828 #define IMPLEMENT_STATIC_ASN1_ALLOC_FUNCTIONS(stname) \
 829                 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_pfname(static, stname, stname, stname)
 830
 831 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS(stname) \
 832                 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, stname, stname)
 833
 834 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_pfname(pre, stname, itname, fname) \
 835         pre stname *fname##_new(void) \
 836         { \
 837                 return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \
 838         } \
 839         pre void fname##_free(stname *a) \
 840         { \
 841                 ASN1_item_free((ASN1_VALUE *)a, ASN1_ITEM_rptr(itname)); \
 842         }
 843
 844 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) \
 845         stname *fname##_new(void) \
 846         { \
 847                 return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \
 848         } \
 849         void fname##_free(stname *a) \
 850         { \
 851                 ASN1_item_free((ASN1_VALUE *)a, ASN1_ITEM_rptr(itname)); \
 852         }
 853
 854 #define IMPLEMENT_ASN1_FUNCTIONS_fname(stname, itname, fname) \
 855         IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(stname, itname, fname) \
 856         IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname)
 857
 858 #define IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(stname, itname, fname) \
 859         stname *d2i_##fname(stname **a, const unsigned char **in, long len) \
 860         { \
 861                 return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, ASN1_ITEM_rptr(itname));\
 862         } \
 863         int i2d_##fname(stname *a, unsigned char **out) \
 864         { \
 865                 return ASN1_item_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(itname));\
 866         }
 867
 868 #define IMPLEMENT_ASN1_NDEF_FUNCTION(stname) \
 869         int i2d_##stname##_NDEF(stname *a, unsigned char **out) \
 870         { \
 871                 return ASN1_item_ndef_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(stname));\
 872         }
 873
 874 /* This includes evil casts to remove const: they will go away when full
 875  * ASN1 constification is done.
 876  */
 877 #define IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(stname, itname, fname) \
 878         stname *d2i_##fname(stname **a, const unsigned char **in, long len) \
 879         { \
 880                 return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, ASN1_ITEM_rptr(itname));\
 881         } \
 882         int i2d_##fname(const stname *a, unsigned char **out) \
 883         { \
 884                 return ASN1_item_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(itname));\
 885         }
 886
 887 #define IMPLEMENT_ASN1_DUP_FUNCTION(stname) \
 888         stname * stname##_dup(stname *x) \
 889         { \
 890         return ASN1_item_dup(ASN1_ITEM_rptr(stname), x); \
 891         }
 892
 893 #define IMPLEMENT_ASN1_PRINT_FUNCTION(stname) \
 894         IMPLEMENT_ASN1_PRINT_FUNCTION_fname(stname, stname, stname)
 895
 896 #define IMPLEMENT_ASN1_PRINT_FUNCTION_fname(stname, itname, fname) \
 897         int fname##_print_ctx(BIO *out, stname *x, int indent, \
 898                                                 const ASN1_PCTX *pctx) \
 899         { \
 900                 return ASN1_item_print(out, (ASN1_VALUE *)x, indent, \
 901                         ASN1_ITEM_rptr(itname), pctx); \
 902         }
 903
 904 #define IMPLEMENT_ASN1_FUNCTIONS_const(name) \
 905                 IMPLEMENT_ASN1_FUNCTIONS_const_fname(name, name, name)
 906
 907 #define IMPLEMENT_ASN1_FUNCTIONS_const_fname(stname, itname, fname) \
 908         IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(stname, itname, fname) \
 909         IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname)
 910
 911 /* external definitions for primitive types */
 912
 913 DECLARE_ASN1_ITEM(ASN1_BOOLEAN)
 914 DECLARE_ASN1_ITEM(ASN1_TBOOLEAN)
 915 DECLARE_ASN1_ITEM(ASN1_FBOOLEAN)
 916 DECLARE_ASN1_ITEM(ASN1_SEQUENCE)
 917 DECLARE_ASN1_ITEM(CBIGNUM)
 918 DECLARE_ASN1_ITEM(BIGNUM)
 919 DECLARE_ASN1_ITEM(LONG)
 920 DECLARE_ASN1_ITEM(ZLONG)
 921
 922 DECLARE_STACK_OF(ASN1_VALUE)
 923
 924 /* Functions used internally by the ASN1 code */
 925
 926 int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it);
 927 void ASN1_item_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it);
 928 int ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
 929 int ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it);
 930
 931 void ASN1_template_free(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
 932 int ASN1_template_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, const ASN1_TEMPLATE *tt);
 933 int ASN1_item_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, const ASN1_ITEM *it,
 934                                 int tag, int aclass, char opt, ASN1_TLC *ctx);
 935
 936 int ASN1_item_ex_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass);
 937 int ASN1_template_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_TEMPLATE *tt);
 938 void ASN1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it);
 939
 940 int asn1_ex_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype, const ASN1_ITEM *it);
 941 int asn1_ex_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len, int utype, char *free_cont, const ASN1_ITEM *it);
 942
 943 int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it);
 944 int asn1_set_choice_selector(ASN1_VALUE **pval, int value, const ASN1_ITEM *it);
 945
 946 ASN1_VALUE ** asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
 947
 948 const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt, int nullerr);
 949
 950 int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it);
 951
 952 void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it);
 953 void asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it);
 954 int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval, const ASN1_ITEM *it);
 955 int asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen, const ASN1_ITEM *it);
 956
 957 #ifdef  __cplusplus
 958 }
 959 #endif
 960 #endif