1 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 2 * project 2000. 3 */ 4 /* ==================================================================== 5 * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * 3. All advertising materials mentioning features or use of this 20 * software must display the following acknowledgment: 21 * "This product includes software developed by the OpenSSL Project 22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 23 * 24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 25 * endorse or promote products derived from this software without 26 * prior written permission. For written permission, please contact 27 * licensing@OpenSSL.org. 28 * 29 * 5. Products derived from this software may not be called "OpenSSL" 30 * nor may "OpenSSL" appear in their names without prior written 31 * permission of the OpenSSL Project. 32 * 33 * 6. Redistributions of any form whatsoever must retain the following 34 * acknowledgment: 35 * "This product includes software developed by the OpenSSL Project 36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 49 * OF THE POSSIBILITY OF SUCH DAMAGE. 50 * ==================================================================== 51 * 52 * This product includes cryptographic software written by Eric Young 53 * (eay@cryptsoft.com). This product includes software written by Tim 54 * Hudson (tjh@cryptsoft.com). 55 * 56 */ 57 #ifndef OPENSSL_HEADER_ASN1T_H 58 #define OPENSSL_HEADER_ASN1T_H 59 60 #include <openssl/asn1.h> 61 #include <openssl/base.h> 62 63 #if defined(__cplusplus) 64 extern "C" { 65 #endif 66 67 68 /* Legacy ASN.1 library template definitions. 69 * 70 * This header is used to define new types in OpenSSL's ASN.1 implementation. It 71 * is deprecated and will be unexported from the library. Use the new |CBS| and 72 * |CBB| library in <openssl/bytestring.h> instead. */ 73 74 75 typedef struct ASN1_TEMPLATE_st ASN1_TEMPLATE; 76 typedef struct ASN1_TLC_st ASN1_TLC; 77 78 /* Macro to obtain ASN1_ADB pointer from a type (only used internally) */ 79 #define ASN1_ADB_ptr(iptr) ((const ASN1_ADB *)(iptr)) 80 81 82 /* Macros for start and end of ASN1_ITEM definition */ 83 84 #define ASN1_ITEM_start(itname) const ASN1_ITEM itname##_it = { 85 #define ASN1_ITEM_end(itname) \ 86 } \ 87 ; 88 89 /* Macros to aid ASN1 template writing */ 90 91 #define ASN1_ITEM_TEMPLATE(tname) static const ASN1_TEMPLATE tname##_item_tt 92 93 #define ASN1_ITEM_TEMPLATE_END(tname) \ 94 ; \ 95 ASN1_ITEM_start(tname) ASN1_ITYPE_PRIMITIVE, -1, &tname##_item_tt, 0, NULL, \ 96 0, #tname ASN1_ITEM_end(tname) 97 98 99 /* This is a ASN1 type which just embeds a template */ 100 101 /* This pair helps declare a SEQUENCE. We can do: 102 * 103 * ASN1_SEQUENCE(stname) = { 104 * ... SEQUENCE components ... 105 * } ASN1_SEQUENCE_END(stname) 106 * 107 * This will produce an ASN1_ITEM called stname_it 108 * for a structure called stname. 109 * 110 * If you want the same structure but a different 111 * name then use: 112 * 113 * ASN1_SEQUENCE(itname) = { 114 * ... SEQUENCE components ... 115 * } ASN1_SEQUENCE_END_name(stname, itname) 116 * 117 * This will create an item called itname_it using 118 * a structure called stname. 119 */ 120 121 #define ASN1_SEQUENCE(tname) static const ASN1_TEMPLATE tname##_seq_tt[] 122 123 #define ASN1_SEQUENCE_END(stname) ASN1_SEQUENCE_END_name(stname, stname) 124 125 #define ASN1_SEQUENCE_END_name(stname, tname) \ 126 ; \ 127 ASN1_ITEM_start(tname) ASN1_ITYPE_SEQUENCE, V_ASN1_SEQUENCE, tname##_seq_tt, \ 128 sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE), NULL, sizeof(stname), \ 129 #stname ASN1_ITEM_end(tname) 130 131 #define ASN1_SEQUENCE_cb(tname, cb) \ 132 static const ASN1_AUX tname##_aux = {NULL, 0, 0, cb, 0}; \ 133 ASN1_SEQUENCE(tname) 134 135 #define ASN1_SEQUENCE_ref(tname, cb) \ 136 static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_REFCOUNT, \ 137 offsetof(tname, references), cb, 0}; \ 138 ASN1_SEQUENCE(tname) 139 140 #define ASN1_SEQUENCE_enc(tname, enc, cb) \ 141 static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_ENCODING, 0, cb, \ 142 offsetof(tname, enc)}; \ 143 ASN1_SEQUENCE(tname) 144 145 #define ASN1_SEQUENCE_END_enc(stname, tname) \ 146 ASN1_SEQUENCE_END_ref(stname, tname) 147 148 #define ASN1_SEQUENCE_END_cb(stname, tname) ASN1_SEQUENCE_END_ref(stname, tname) 149 150 #define ASN1_SEQUENCE_END_ref(stname, tname) \ 151 ; \ 152 ASN1_ITEM_start(tname) ASN1_ITYPE_SEQUENCE, V_ASN1_SEQUENCE, tname##_seq_tt, \ 153 sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE), &tname##_aux, \ 154 sizeof(stname), #stname ASN1_ITEM_end(tname) 155 156 157 /* This pair helps declare a CHOICE type. We can do: 158 * 159 * ASN1_CHOICE(chname) = { 160 * ... CHOICE options ... 161 * ASN1_CHOICE_END(chname) 162 * 163 * This will produce an ASN1_ITEM called chname_it 164 * for a structure called chname. The structure 165 * definition must look like this: 166 * typedef struct { 167 * int type; 168 * union { 169 * ASN1_SOMETHING *opt1; 170 * ASN1_SOMEOTHER *opt2; 171 * } value; 172 * } chname; 173 * 174 * the name of the selector must be 'type'. 175 * to use an alternative selector name use the 176 * ASN1_CHOICE_END_selector() version. 177 */ 178 179 #define ASN1_CHOICE(tname) static const ASN1_TEMPLATE tname##_ch_tt[] 180 181 #define ASN1_CHOICE_cb(tname, cb) \ 182 static const ASN1_AUX tname##_aux = {NULL, 0, 0, cb, 0}; \ 183 ASN1_CHOICE(tname) 184 185 #define ASN1_CHOICE_END(stname) ASN1_CHOICE_END_name(stname, stname) 186 187 #define ASN1_CHOICE_END_name(stname, tname) \ 188 ASN1_CHOICE_END_selector(stname, tname, type) 189 190 #define ASN1_CHOICE_END_selector(stname, tname, selname) \ 191 ; \ 192 ASN1_ITEM_start(tname) ASN1_ITYPE_CHOICE, offsetof(stname, selname), \ 193 tname##_ch_tt, sizeof(tname##_ch_tt) / sizeof(ASN1_TEMPLATE), NULL, \ 194 sizeof(stname), #stname ASN1_ITEM_end(tname) 195 196 #define ASN1_CHOICE_END_cb(stname, tname, selname) \ 197 ; \ 198 ASN1_ITEM_start(tname) ASN1_ITYPE_CHOICE, offsetof(stname, selname), \ 199 tname##_ch_tt, sizeof(tname##_ch_tt) / sizeof(ASN1_TEMPLATE), \ 200 &tname##_aux, sizeof(stname), #stname ASN1_ITEM_end(tname) 201 202 /* This helps with the template wrapper form of ASN1_ITEM */ 203 204 #define ASN1_EX_TEMPLATE_TYPE(flags, tag, name, type) \ 205 { (flags), (tag), 0, #name, ASN1_ITEM_ref(type) } 206 207 /* These help with SEQUENCE or CHOICE components */ 208 209 /* used to declare other types */ 210 211 #define ASN1_EX_TYPE(flags, tag, stname, field, type) \ 212 { (flags), (tag), offsetof(stname, field), #field, ASN1_ITEM_ref(type) } 213 214 /* implicit and explicit helper macros */ 215 216 #define ASN1_IMP_EX(stname, field, type, tag, ex) \ 217 ASN1_EX_TYPE(ASN1_TFLG_IMPLICIT | ex, tag, stname, field, type) 218 219 #define ASN1_EXP_EX(stname, field, type, tag, ex) \ 220 ASN1_EX_TYPE(ASN1_TFLG_EXPLICIT | ex, tag, stname, field, type) 221 222 /* Any defined by macros: the field used is in the table itself */ 223 224 #define ASN1_ADB_OBJECT(tblname) \ 225 { ASN1_TFLG_ADB_OID, -1, 0, #tblname, (const ASN1_ITEM *)&(tblname##_adb) } 226 /* Plain simple type */ 227 #define ASN1_SIMPLE(stname, field, type) ASN1_EX_TYPE(0, 0, stname, field, type) 228 229 /* OPTIONAL simple type */ 230 #define ASN1_OPT(stname, field, type) \ 231 ASN1_EX_TYPE(ASN1_TFLG_OPTIONAL, 0, stname, field, type) 232 233 /* IMPLICIT tagged simple type */ 234 #define ASN1_IMP(stname, field, type, tag) \ 235 ASN1_IMP_EX(stname, field, type, tag, 0) 236 237 /* IMPLICIT tagged OPTIONAL simple type */ 238 #define ASN1_IMP_OPT(stname, field, type, tag) \ 239 ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL) 240 241 /* Same as above but EXPLICIT */ 242 243 #define ASN1_EXP(stname, field, type, tag) \ 244 ASN1_EXP_EX(stname, field, type, tag, 0) 245 #define ASN1_EXP_OPT(stname, field, type, tag) \ 246 ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL) 247 248 /* SEQUENCE OF type */ 249 #define ASN1_SEQUENCE_OF(stname, field, type) \ 250 ASN1_EX_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, stname, field, type) 251 252 /* OPTIONAL SEQUENCE OF */ 253 #define ASN1_SEQUENCE_OF_OPT(stname, field, type) \ 254 ASN1_EX_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_OPTIONAL, 0, stname, field, \ 255 type) 256 257 /* Same as above but for SET OF */ 258 259 #define ASN1_SET_OF(stname, field, type) \ 260 ASN1_EX_TYPE(ASN1_TFLG_SET_OF, 0, stname, field, type) 261 262 #define ASN1_SET_OF_OPT(stname, field, type) \ 263 ASN1_EX_TYPE(ASN1_TFLG_SET_OF | ASN1_TFLG_OPTIONAL, 0, stname, field, type) 264 265 /* Finally compound types of SEQUENCE, SET, IMPLICIT, EXPLICIT and OPTIONAL */ 266 267 #define ASN1_IMP_SET_OF(stname, field, type, tag) \ 268 ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF) 269 270 #define ASN1_EXP_SET_OF(stname, field, type, tag) \ 271 ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF) 272 273 #define ASN1_IMP_SET_OF_OPT(stname, field, type, tag) \ 274 ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF | ASN1_TFLG_OPTIONAL) 275 276 #define ASN1_EXP_SET_OF_OPT(stname, field, type, tag) \ 277 ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF | ASN1_TFLG_OPTIONAL) 278 279 #define ASN1_IMP_SEQUENCE_OF(stname, field, type, tag) \ 280 ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF) 281 282 #define ASN1_IMP_SEQUENCE_OF_OPT(stname, field, type, tag) \ 283 ASN1_IMP_EX(stname, field, type, tag, \ 284 ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_OPTIONAL) 285 286 #define ASN1_EXP_SEQUENCE_OF(stname, field, type, tag) \ 287 ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF) 288 289 #define ASN1_EXP_SEQUENCE_OF_OPT(stname, field, type, tag) \ 290 ASN1_EXP_EX(stname, field, type, tag, \ 291 ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_OPTIONAL) 292 293 /* Macros for the ASN1_ADB structure */ 294 295 #define ASN1_ADB(name) static const ASN1_ADB_TABLE name##_adbtbl[] 296 297 #define ASN1_ADB_END(name, flags, field, app_table, def, none) \ 298 ; \ 299 static const ASN1_ADB name##_adb = { \ 300 flags, \ 301 offsetof(name, field), \ 302 app_table, \ 303 name##_adbtbl, \ 304 sizeof(name##_adbtbl) / sizeof(ASN1_ADB_TABLE), \ 305 def, \ 306 none} 307 308 #define ADB_ENTRY(val, template) \ 309 { val, template } 310 311 #define ASN1_ADB_TEMPLATE(name) static const ASN1_TEMPLATE name##_tt 312 313 /* This is the ASN1 template structure that defines 314 * a wrapper round the actual type. It determines the 315 * actual position of the field in the value structure, 316 * various flags such as OPTIONAL and the field name. 317 */ 318 319 struct ASN1_TEMPLATE_st { 320 uint32_t flags; /* Various flags */ 321 int tag; /* tag, not used if no tagging */ 322 unsigned long offset; /* Offset of this field in structure */ 323 const char *field_name; /* Field name */ 324 ASN1_ITEM_EXP *item; /* Relevant ASN1_ITEM or ASN1_ADB */ 325 }; 326 327 /* Macro to extract ASN1_ITEM and ASN1_ADB pointer from ASN1_TEMPLATE */ 328 329 #define ASN1_TEMPLATE_item(t) (t->item_ptr) 330 #define ASN1_TEMPLATE_adb(t) (t->item_ptr) 331 332 typedef struct ASN1_ADB_TABLE_st ASN1_ADB_TABLE; 333 typedef struct ASN1_ADB_st ASN1_ADB; 334 335 typedef struct asn1_must_be_null_st ASN1_MUST_BE_NULL; 336 337 struct ASN1_ADB_st { 338 uint32_t flags; /* Various flags */ 339 unsigned long offset; /* Offset of selector field */ 340 ASN1_MUST_BE_NULL *unused; 341 const ASN1_ADB_TABLE *tbl; /* Table of possible types */ 342 long tblcount; /* Number of entries in tbl */ 343 const ASN1_TEMPLATE *default_tt; /* Type to use if no match */ 344 const ASN1_TEMPLATE *null_tt; /* Type to use if selector is NULL */ 345 }; 346 347 struct ASN1_ADB_TABLE_st { 348 int value; /* NID for an object */ 349 const ASN1_TEMPLATE tt; /* item for this value */ 350 }; 351 352 /* template flags */ 353 354 /* Field is optional */ 355 #define ASN1_TFLG_OPTIONAL (0x1) 356 357 /* Field is a SET OF */ 358 #define ASN1_TFLG_SET_OF (0x1 << 1) 359 360 /* Field is a SEQUENCE OF */ 361 #define ASN1_TFLG_SEQUENCE_OF (0x2 << 1) 362 363 /* Mask for SET OF or SEQUENCE OF */ 364 #define ASN1_TFLG_SK_MASK (0x3 << 1) 365 366 /* These flags mean the tag should be taken from the 367 * tag field. If EXPLICIT then the underlying type 368 * is used for the inner tag. 369 */ 370 371 /* IMPLICIT tagging */ 372 #define ASN1_TFLG_IMPTAG (0x1 << 3) 373 374 375 /* EXPLICIT tagging, inner tag from underlying type */ 376 #define ASN1_TFLG_EXPTAG (0x2 << 3) 377 378 #define ASN1_TFLG_TAG_MASK (0x3 << 3) 379 380 /* context specific IMPLICIT */ 381 #define ASN1_TFLG_IMPLICIT ASN1_TFLG_IMPTAG | ASN1_TFLG_CONTEXT 382 383 /* context specific EXPLICIT */ 384 #define ASN1_TFLG_EXPLICIT ASN1_TFLG_EXPTAG | ASN1_TFLG_CONTEXT 385 386 /* If tagging is in force these determine the 387 * type of tag to use. Otherwise the tag is 388 * determined by the underlying type. These 389 * values reflect the actual octet format. 390 */ 391 392 /* Universal tag */ 393 #define ASN1_TFLG_UNIVERSAL (0x0 << 6) 394 /* Application tag */ 395 #define ASN1_TFLG_APPLICATION (0x1 << 6) 396 /* Context specific tag */ 397 #define ASN1_TFLG_CONTEXT (0x2 << 6) 398 /* Private tag */ 399 #define ASN1_TFLG_PRIVATE (0x3 << 6) 400 401 #define ASN1_TFLG_TAG_CLASS (0x3 << 6) 402 403 /* These are for ANY DEFINED BY type. In this case 404 * the 'item' field points to an ASN1_ADB structure 405 * which contains a table of values to decode the 406 * relevant type 407 */ 408 409 #define ASN1_TFLG_ADB_MASK (0x3 << 8) 410 411 #define ASN1_TFLG_ADB_OID (0x1 << 8) 412 413 /* This is the actual ASN1 item itself */ 414 415 struct ASN1_ITEM_st { 416 char itype; /* The item type, primitive, SEQUENCE, CHOICE or extern */ 417 int utype; /* underlying type */ 418 const ASN1_TEMPLATE 419 *templates; /* If SEQUENCE or CHOICE this contains the contents */ 420 long tcount; /* Number of templates if SEQUENCE or CHOICE */ 421 const void *funcs; /* functions that handle this type */ 422 long size; /* Structure size (usually)*/ 423 const char *sname; /* Structure name */ 424 }; 425 426 /* These are values for the itype field and 427 * determine how the type is interpreted. 428 * 429 * For PRIMITIVE types the underlying type 430 * determines the behaviour if items is NULL. 431 * 432 * Otherwise templates must contain a single 433 * template and the type is treated in the 434 * same way as the type specified in the template. 435 * 436 * For SEQUENCE types the templates field points 437 * to the members, the size field is the 438 * structure size. 439 * 440 * For CHOICE types the templates field points 441 * to each possible member (typically a union) 442 * and the 'size' field is the offset of the 443 * selector. 444 * 445 * The 'funcs' field is used for application 446 * specific functions. 447 * 448 * The EXTERN type uses a new style d2i/i2d. 449 * The new style should be used where possible 450 * because it avoids things like the d2i IMPLICIT 451 * hack. 452 * 453 * MSTRING is a multiple string type, it is used 454 * for a CHOICE of character strings where the 455 * actual strings all occupy an ASN1_STRING 456 * structure. In this case the 'utype' field 457 * has a special meaning, it is used as a mask 458 * of acceptable types using the B_ASN1 constants. 459 * 460 */ 461 462 #define ASN1_ITYPE_PRIMITIVE 0x0 463 464 #define ASN1_ITYPE_SEQUENCE 0x1 465 466 #define ASN1_ITYPE_CHOICE 0x2 467 468 #define ASN1_ITYPE_EXTERN 0x4 469 470 #define ASN1_ITYPE_MSTRING 0x5 471 472 /* Deprecated tag and length cache */ 473 struct ASN1_TLC_st; 474 475 /* This is the ASN1_AUX structure: it handles various 476 * miscellaneous requirements. For example the use of 477 * reference counts and an informational callback. 478 * 479 * The "informational callback" is called at various 480 * points during the ASN1 encoding and decoding. It can 481 * be used to provide minor customisation of the structures 482 * used. This is most useful where the supplied routines 483 * *almost* do the right thing but need some extra help 484 * at a few points. If the callback returns zero then 485 * it is assumed a fatal error has occurred and the 486 * main operation should be abandoned. 487 * 488 * If major changes in the default behaviour are required 489 * then an external type is more appropriate. 490 */ 491 492 typedef int ASN1_aux_cb(int operation, ASN1_VALUE **in, const ASN1_ITEM *it, 493 void *exarg); 494 495 typedef struct ASN1_AUX_st { 496 void *app_data; 497 uint32_t flags; 498 int ref_offset; /* Offset of reference value */ 499 ASN1_aux_cb *asn1_cb; 500 int enc_offset; /* Offset of ASN1_ENCODING structure */ 501 } ASN1_AUX; 502 503 /* Flags in ASN1_AUX */ 504 505 /* Use a reference count */ 506 #define ASN1_AFLG_REFCOUNT 1 507 /* Save the encoding of structure (useful for signatures) */ 508 #define ASN1_AFLG_ENCODING 2 509 510 /* operation values for asn1_cb */ 511 512 #define ASN1_OP_NEW_PRE 0 513 #define ASN1_OP_NEW_POST 1 514 #define ASN1_OP_FREE_PRE 2 515 #define ASN1_OP_FREE_POST 3 516 #define ASN1_OP_D2I_PRE 4 517 #define ASN1_OP_D2I_POST 5 518 /* ASN1_OP_I2D_PRE and ASN1_OP_I2D_POST are not supported. We leave the 519 * constants undefined so code relying on them does not accidentally compile. */ 520 #define ASN1_OP_PRINT_PRE 8 521 #define ASN1_OP_PRINT_POST 9 522 #define ASN1_OP_STREAM_PRE 10 523 #define ASN1_OP_STREAM_POST 11 524 #define ASN1_OP_DETACHED_PRE 12 525 #define ASN1_OP_DETACHED_POST 13 526 527 /* Macro to implement a primitive type */ 528 #define IMPLEMENT_ASN1_TYPE(stname) IMPLEMENT_ASN1_TYPE_ex(stname, stname, 0) 529 #define IMPLEMENT_ASN1_TYPE_ex(itname, vname, ex) \ 530 ASN1_ITEM_start(itname) ASN1_ITYPE_PRIMITIVE, V_##vname, NULL, 0, NULL, ex, \ 531 #itname ASN1_ITEM_end(itname) 532 533 /* Macro to implement a multi string type */ 534 #define IMPLEMENT_ASN1_MSTRING(itname, mask) \ 535 ASN1_ITEM_start(itname) ASN1_ITYPE_MSTRING, mask, NULL, 0, NULL, \ 536 sizeof(ASN1_STRING), #itname ASN1_ITEM_end(itname) 537 538 #define IMPLEMENT_EXTERN_ASN1(sname, tag, fptrs) \ 539 ASN1_ITEM_start(sname) ASN1_ITYPE_EXTERN, tag, NULL, 0, &fptrs, 0, \ 540 #sname ASN1_ITEM_end(sname) 541 542 /* Macro to implement standard functions in terms of ASN1_ITEM structures */ 543 544 #define IMPLEMENT_ASN1_FUNCTIONS(stname) \ 545 IMPLEMENT_ASN1_FUNCTIONS_fname(stname, stname, stname) 546 547 #define IMPLEMENT_ASN1_FUNCTIONS_name(stname, itname) \ 548 IMPLEMENT_ASN1_FUNCTIONS_fname(stname, itname, itname) 549 550 #define IMPLEMENT_ASN1_FUNCTIONS_ENCODE_name(stname, itname) \ 551 IMPLEMENT_ASN1_FUNCTIONS_ENCODE_fname(stname, itname, itname) 552 553 #define IMPLEMENT_STATIC_ASN1_ALLOC_FUNCTIONS(stname) \ 554 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_pfname(static, stname, stname, stname) 555 556 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS(stname) \ 557 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, stname, stname) 558 559 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_pfname(pre, stname, itname, fname) \ 560 pre stname *fname##_new(void) { \ 561 return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \ 562 } \ 563 pre void fname##_free(stname *a) { \ 564 ASN1_item_free((ASN1_VALUE *)a, ASN1_ITEM_rptr(itname)); \ 565 } 566 567 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) \ 568 stname *fname##_new(void) { \ 569 return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \ 570 } \ 571 void fname##_free(stname *a) { \ 572 ASN1_item_free((ASN1_VALUE *)a, ASN1_ITEM_rptr(itname)); \ 573 } 574 575 #define IMPLEMENT_ASN1_FUNCTIONS_fname(stname, itname, fname) \ 576 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(stname, itname, fname) \ 577 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) 578 579 #define IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(stname, itname, fname) \ 580 stname *d2i_##fname(stname **a, const unsigned char **in, long len) { \ 581 return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, \ 582 ASN1_ITEM_rptr(itname)); \ 583 } \ 584 int i2d_##fname(stname *a, unsigned char **out) { \ 585 return ASN1_item_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(itname)); \ 586 } 587 588 /* This includes evil casts to remove const: they will go away when full 589 * ASN1 constification is done. 590 */ 591 #define IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(stname, itname, fname) \ 592 stname *d2i_##fname(stname **a, const unsigned char **in, long len) { \ 593 return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, \ 594 ASN1_ITEM_rptr(itname)); \ 595 } \ 596 int i2d_##fname(const stname *a, unsigned char **out) { \ 597 return ASN1_item_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(itname)); \ 598 } 599 600 #define IMPLEMENT_ASN1_DUP_FUNCTION(stname) \ 601 stname *stname##_dup(stname *x) { \ 602 return (stname *)ASN1_item_dup(ASN1_ITEM_rptr(stname), x); \ 603 } 604 605 #define IMPLEMENT_ASN1_DUP_FUNCTION_const(stname) \ 606 stname *stname##_dup(const stname *x) { \ 607 return (stname *)ASN1_item_dup(ASN1_ITEM_rptr(stname), (void *)x); \ 608 } 609 610 #define IMPLEMENT_ASN1_FUNCTIONS_const(name) \ 611 IMPLEMENT_ASN1_FUNCTIONS_const_fname(name, name, name) 612 613 #define IMPLEMENT_ASN1_FUNCTIONS_const_fname(stname, itname, fname) \ 614 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(stname, itname, fname) \ 615 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) 616 617 /* external definitions for primitive types */ 618 619 DECLARE_ASN1_ITEM(ASN1_SEQUENCE) 620 621 DEFINE_STACK_OF(ASN1_VALUE) 622 623 624 #if defined(__cplusplus) 625 } // extern "C" 626 #endif 627 628 #endif // OPENSSL_HEADER_ASN1T_H 629