1 /* Written by Dr Stephen N Henson ([email protected]) 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 * [email protected]. 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 * ([email protected]). This product includes software written by Tim 54 * Hudson ([email protected]). 55 * 56 */ 57 #ifndef OPENSSL_HEADER_ASN1T_H 58 #define OPENSSL_HEADER_ASN1T_H 59 60 #include <openssl/base.h> 61 #include <openssl/asn1.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) \ 85 const ASN1_ITEM itname##_it = { 86 87 #define ASN1_ITEM_end(itname) \ 88 }; 89 90 /* Macros to aid ASN1 template writing */ 91 92 #define ASN1_ITEM_TEMPLATE(tname) \ 93 static const ASN1_TEMPLATE tname##_item_tt 94 95 #define ASN1_ITEM_TEMPLATE_END(tname) \ 96 ;\ 97 ASN1_ITEM_start(tname) \ 98 ASN1_ITYPE_PRIMITIVE,\ 99 -1,\ 100 &tname##_item_tt,\ 101 0,\ 102 NULL,\ 103 0,\ 104 #tname \ 105 ASN1_ITEM_end(tname) 106 107 108 /* This is a ASN1 type which just embeds a template */ 109 110 /* This pair helps declare a SEQUENCE. We can do: 111 * 112 * ASN1_SEQUENCE(stname) = { 113 * ... SEQUENCE components ... 114 * } ASN1_SEQUENCE_END(stname) 115 * 116 * This will produce an ASN1_ITEM called stname_it 117 * for a structure called stname. 118 * 119 * If you want the same structure but a different 120 * name then use: 121 * 122 * ASN1_SEQUENCE(itname) = { 123 * ... SEQUENCE components ... 124 * } ASN1_SEQUENCE_END_name(stname, itname) 125 * 126 * This will create an item called itname_it using 127 * a structure called stname. 128 */ 129 130 #define ASN1_SEQUENCE(tname) \ 131 static const ASN1_TEMPLATE tname##_seq_tt[] 132 133 #define ASN1_SEQUENCE_END(stname) ASN1_SEQUENCE_END_name(stname, stname) 134 135 #define ASN1_SEQUENCE_END_name(stname, tname) \ 136 ;\ 137 ASN1_ITEM_start(tname) \ 138 ASN1_ITYPE_SEQUENCE,\ 139 V_ASN1_SEQUENCE,\ 140 tname##_seq_tt,\ 141 sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\ 142 NULL,\ 143 sizeof(stname),\ 144 #stname \ 145 ASN1_ITEM_end(tname) 146 147 #define ASN1_SEQUENCE_cb(tname, cb) \ 148 static const ASN1_AUX tname##_aux = {NULL, 0, 0, cb, 0}; \ 149 ASN1_SEQUENCE(tname) 150 151 #define ASN1_SEQUENCE_ref(tname, cb) \ 152 static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_REFCOUNT, offsetof(tname, references), cb, 0}; \ 153 ASN1_SEQUENCE(tname) 154 155 #define ASN1_SEQUENCE_enc(tname, enc, cb) \ 156 static const ASN1_AUX tname##_aux = {NULL, ASN1_AFLG_ENCODING, 0, cb, offsetof(tname, enc)}; \ 157 ASN1_SEQUENCE(tname) 158 159 #define ASN1_SEQUENCE_END_enc(stname, tname) ASN1_SEQUENCE_END_ref(stname, tname) 160 161 #define ASN1_SEQUENCE_END_cb(stname, tname) ASN1_SEQUENCE_END_ref(stname, tname) 162 163 #define ASN1_SEQUENCE_END_ref(stname, tname) \ 164 ;\ 165 ASN1_ITEM_start(tname) \ 166 ASN1_ITYPE_SEQUENCE,\ 167 V_ASN1_SEQUENCE,\ 168 tname##_seq_tt,\ 169 sizeof(tname##_seq_tt) / sizeof(ASN1_TEMPLATE),\ 170 &tname##_aux,\ 171 sizeof(stname),\ 172 #stname \ 173 ASN1_ITEM_end(tname) 174 175 176 /* This pair helps declare a CHOICE type. We can do: 177 * 178 * ASN1_CHOICE(chname) = { 179 * ... CHOICE options ... 180 * ASN1_CHOICE_END(chname) 181 * 182 * This will produce an ASN1_ITEM called chname_it 183 * for a structure called chname. The structure 184 * definition must look like this: 185 * typedef struct { 186 * int type; 187 * union { 188 * ASN1_SOMETHING *opt1; 189 * ASN1_SOMEOTHER *opt2; 190 * } value; 191 * } chname; 192 * 193 * the name of the selector must be 'type'. 194 * to use an alternative selector name use the 195 * ASN1_CHOICE_END_selector() version. 196 */ 197 198 #define ASN1_CHOICE(tname) \ 199 static const ASN1_TEMPLATE tname##_ch_tt[] 200 201 #define ASN1_CHOICE_cb(tname, cb) \ 202 static const ASN1_AUX tname##_aux = {NULL, 0, 0, cb, 0}; \ 203 ASN1_CHOICE(tname) 204 205 #define ASN1_CHOICE_END(stname) ASN1_CHOICE_END_name(stname, stname) 206 207 #define ASN1_CHOICE_END_name(stname, tname) ASN1_CHOICE_END_selector(stname, tname, type) 208 209 #define ASN1_CHOICE_END_selector(stname, tname, selname) \ 210 ;\ 211 ASN1_ITEM_start(tname) \ 212 ASN1_ITYPE_CHOICE,\ 213 offsetof(stname,selname) ,\ 214 tname##_ch_tt,\ 215 sizeof(tname##_ch_tt) / sizeof(ASN1_TEMPLATE),\ 216 NULL,\ 217 sizeof(stname),\ 218 #stname \ 219 ASN1_ITEM_end(tname) 220 221 #define ASN1_CHOICE_END_cb(stname, tname, selname) \ 222 ;\ 223 ASN1_ITEM_start(tname) \ 224 ASN1_ITYPE_CHOICE,\ 225 offsetof(stname,selname) ,\ 226 tname##_ch_tt,\ 227 sizeof(tname##_ch_tt) / sizeof(ASN1_TEMPLATE),\ 228 &tname##_aux,\ 229 sizeof(stname),\ 230 #stname \ 231 ASN1_ITEM_end(tname) 232 233 /* This helps with the template wrapper form of ASN1_ITEM */ 234 235 #define ASN1_EX_TEMPLATE_TYPE(flags, tag, name, type) { \ 236 (flags), (tag), 0,\ 237 #name, ASN1_ITEM_ref(type) } 238 239 /* These help with SEQUENCE or CHOICE components */ 240 241 /* used to declare other types */ 242 243 #define ASN1_EX_TYPE(flags, tag, stname, field, type) { \ 244 (flags), (tag), offsetof(stname, field),\ 245 #field, ASN1_ITEM_ref(type) } 246 247 /* implicit and explicit helper macros */ 248 249 #define ASN1_IMP_EX(stname, field, type, tag, ex) \ 250 ASN1_EX_TYPE(ASN1_TFLG_IMPLICIT | ex, tag, stname, field, type) 251 252 #define ASN1_EXP_EX(stname, field, type, tag, ex) \ 253 ASN1_EX_TYPE(ASN1_TFLG_EXPLICIT | ex, tag, stname, field, type) 254 255 /* Any defined by macros: the field used is in the table itself */ 256 257 #define ASN1_ADB_OBJECT(tblname) { ASN1_TFLG_ADB_OID, -1, 0, #tblname, (const ASN1_ITEM *)&(tblname##_adb) } 258 /* Plain simple type */ 259 #define ASN1_SIMPLE(stname, field, type) ASN1_EX_TYPE(0,0, stname, field, type) 260 261 /* OPTIONAL simple type */ 262 #define ASN1_OPT(stname, field, type) ASN1_EX_TYPE(ASN1_TFLG_OPTIONAL, 0, stname, field, type) 263 264 /* IMPLICIT tagged simple type */ 265 #define ASN1_IMP(stname, field, type, tag) ASN1_IMP_EX(stname, field, type, tag, 0) 266 267 /* IMPLICIT tagged OPTIONAL simple type */ 268 #define ASN1_IMP_OPT(stname, field, type, tag) ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL) 269 270 /* Same as above but EXPLICIT */ 271 272 #define ASN1_EXP(stname, field, type, tag) ASN1_EXP_EX(stname, field, type, tag, 0) 273 #define ASN1_EXP_OPT(stname, field, type, tag) ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_OPTIONAL) 274 275 /* SEQUENCE OF type */ 276 #define ASN1_SEQUENCE_OF(stname, field, type) \ 277 ASN1_EX_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, stname, field, type) 278 279 /* OPTIONAL SEQUENCE OF */ 280 #define ASN1_SEQUENCE_OF_OPT(stname, field, type) \ 281 ASN1_EX_TYPE(ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL, 0, stname, field, type) 282 283 /* Same as above but for SET OF */ 284 285 #define ASN1_SET_OF(stname, field, type) \ 286 ASN1_EX_TYPE(ASN1_TFLG_SET_OF, 0, stname, field, type) 287 288 #define ASN1_SET_OF_OPT(stname, field, type) \ 289 ASN1_EX_TYPE(ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL, 0, stname, field, type) 290 291 /* Finally compound types of SEQUENCE, SET, IMPLICIT, EXPLICIT and OPTIONAL */ 292 293 #define ASN1_IMP_SET_OF(stname, field, type, tag) \ 294 ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF) 295 296 #define ASN1_EXP_SET_OF(stname, field, type, tag) \ 297 ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF) 298 299 #define ASN1_IMP_SET_OF_OPT(stname, field, type, tag) \ 300 ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL) 301 302 #define ASN1_EXP_SET_OF_OPT(stname, field, type, tag) \ 303 ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SET_OF|ASN1_TFLG_OPTIONAL) 304 305 #define ASN1_IMP_SEQUENCE_OF(stname, field, type, tag) \ 306 ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF) 307 308 #define ASN1_IMP_SEQUENCE_OF_OPT(stname, field, type, tag) \ 309 ASN1_IMP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL) 310 311 #define ASN1_EXP_SEQUENCE_OF(stname, field, type, tag) \ 312 ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF) 313 314 #define ASN1_EXP_SEQUENCE_OF_OPT(stname, field, type, tag) \ 315 ASN1_EXP_EX(stname, field, type, tag, ASN1_TFLG_SEQUENCE_OF|ASN1_TFLG_OPTIONAL) 316 317 /* Macros for the ASN1_ADB structure */ 318 319 #define ASN1_ADB(name) \ 320 static const ASN1_ADB_TABLE name##_adbtbl[] 321 322 #define ASN1_ADB_END(name, flags, field, app_table, def, none) \ 323 ;\ 324 static const ASN1_ADB name##_adb = {\ 325 flags,\ 326 offsetof(name, field),\ 327 app_table,\ 328 name##_adbtbl,\ 329 sizeof(name##_adbtbl) / sizeof(ASN1_ADB_TABLE),\ 330 def,\ 331 none\ 332 } 333 334 #define ADB_ENTRY(val, template) {val, template} 335 336 #define ASN1_ADB_TEMPLATE(name) \ 337 static const ASN1_TEMPLATE name##_tt 338 339 /* This is the ASN1 template structure that defines 340 * a wrapper round the actual type. It determines the 341 * actual position of the field in the value structure, 342 * various flags such as OPTIONAL and the field name. 343 */ 344 345 struct ASN1_TEMPLATE_st { 346 uint32_t flags; /* Various flags */ 347 int tag; /* tag, not used if no tagging */ 348 unsigned long offset; /* Offset of this field in structure */ 349 const char *field_name; /* Field name */ 350 ASN1_ITEM_EXP *item; /* Relevant ASN1_ITEM or ASN1_ADB */ 351 }; 352 353 /* Macro to extract ASN1_ITEM and ASN1_ADB pointer from ASN1_TEMPLATE */ 354 355 #define ASN1_TEMPLATE_item(t) (t->item_ptr) 356 #define ASN1_TEMPLATE_adb(t) (t->item_ptr) 357 358 typedef struct ASN1_ADB_TABLE_st ASN1_ADB_TABLE; 359 typedef struct ASN1_ADB_st ASN1_ADB; 360 361 typedef struct asn1_must_be_null_st ASN1_MUST_BE_NULL; 362 363 struct ASN1_ADB_st { 364 uint32_t flags; /* Various flags */ 365 unsigned long offset; /* Offset of selector field */ 366 ASN1_MUST_BE_NULL *unused; 367 const ASN1_ADB_TABLE *tbl; /* Table of possible types */ 368 long tblcount; /* Number of entries in tbl */ 369 const ASN1_TEMPLATE *default_tt; /* Type to use if no match */ 370 const ASN1_TEMPLATE *null_tt; /* Type to use if selector is NULL */ 371 }; 372 373 struct ASN1_ADB_TABLE_st { 374 int value; /* NID for an object */ 375 const ASN1_TEMPLATE tt; /* item for this value */ 376 }; 377 378 /* template flags */ 379 380 /* Field is optional */ 381 #define ASN1_TFLG_OPTIONAL (0x1) 382 383 /* Field is a SET OF */ 384 #define ASN1_TFLG_SET_OF (0x1 << 1) 385 386 /* Field is a SEQUENCE OF */ 387 #define ASN1_TFLG_SEQUENCE_OF (0x2 << 1) 388 389 /* Mask for SET OF or SEQUENCE OF */ 390 #define ASN1_TFLG_SK_MASK (0x3 << 1) 391 392 /* These flags mean the tag should be taken from the 393 * tag field. If EXPLICIT then the underlying type 394 * is used for the inner tag. 395 */ 396 397 /* IMPLICIT tagging */ 398 #define ASN1_TFLG_IMPTAG (0x1 << 3) 399 400 401 /* EXPLICIT tagging, inner tag from underlying type */ 402 #define ASN1_TFLG_EXPTAG (0x2 << 3) 403 404 #define ASN1_TFLG_TAG_MASK (0x3 << 3) 405 406 /* context specific IMPLICIT */ 407 #define ASN1_TFLG_IMPLICIT ASN1_TFLG_IMPTAG|ASN1_TFLG_CONTEXT 408 409 /* context specific EXPLICIT */ 410 #define ASN1_TFLG_EXPLICIT ASN1_TFLG_EXPTAG|ASN1_TFLG_CONTEXT 411 412 /* If tagging is in force these determine the 413 * type of tag to use. Otherwise the tag is 414 * determined by the underlying type. These 415 * values reflect the actual octet format. 416 */ 417 418 /* Universal tag */ 419 #define ASN1_TFLG_UNIVERSAL (0x0<<6) 420 /* Application tag */ 421 #define ASN1_TFLG_APPLICATION (0x1<<6) 422 /* Context specific tag */ 423 #define ASN1_TFLG_CONTEXT (0x2<<6) 424 /* Private tag */ 425 #define ASN1_TFLG_PRIVATE (0x3<<6) 426 427 #define ASN1_TFLG_TAG_CLASS (0x3<<6) 428 429 /* These are for ANY DEFINED BY type. In this case 430 * the 'item' field points to an ASN1_ADB structure 431 * which contains a table of values to decode the 432 * relevant type 433 */ 434 435 #define ASN1_TFLG_ADB_MASK (0x3<<8) 436 437 #define ASN1_TFLG_ADB_OID (0x1<<8) 438 439 /* This is the actual ASN1 item itself */ 440 441 struct ASN1_ITEM_st { 442 char itype; /* The item type, primitive, SEQUENCE, CHOICE or extern */ 443 int utype; /* underlying type */ 444 const ASN1_TEMPLATE *templates; /* If SEQUENCE or CHOICE this contains the contents */ 445 long tcount; /* Number of templates if SEQUENCE or CHOICE */ 446 const void *funcs; /* functions that handle this type */ 447 long size; /* Structure size (usually)*/ 448 const char *sname; /* Structure name */ 449 }; 450 451 /* These are values for the itype field and 452 * determine how the type is interpreted. 453 * 454 * For PRIMITIVE types the underlying type 455 * determines the behaviour if items is NULL. 456 * 457 * Otherwise templates must contain a single 458 * template and the type is treated in the 459 * same way as the type specified in the template. 460 * 461 * For SEQUENCE types the templates field points 462 * to the members, the size field is the 463 * structure size. 464 * 465 * For CHOICE types the templates field points 466 * to each possible member (typically a union) 467 * and the 'size' field is the offset of the 468 * selector. 469 * 470 * The 'funcs' field is used for application 471 * specific functions. 472 * 473 * The EXTERN type uses a new style d2i/i2d. 474 * The new style should be used where possible 475 * because it avoids things like the d2i IMPLICIT 476 * hack. 477 * 478 * MSTRING is a multiple string type, it is used 479 * for a CHOICE of character strings where the 480 * actual strings all occupy an ASN1_STRING 481 * structure. In this case the 'utype' field 482 * has a special meaning, it is used as a mask 483 * of acceptable types using the B_ASN1 constants. 484 * 485 */ 486 487 #define ASN1_ITYPE_PRIMITIVE 0x0 488 489 #define ASN1_ITYPE_SEQUENCE 0x1 490 491 #define ASN1_ITYPE_CHOICE 0x2 492 493 #define ASN1_ITYPE_EXTERN 0x4 494 495 #define ASN1_ITYPE_MSTRING 0x5 496 497 /* Deprecated tag and length cache */ 498 struct ASN1_TLC_st; 499 500 /* This is the ASN1_AUX structure: it handles various 501 * miscellaneous requirements. For example the use of 502 * reference counts and an informational callback. 503 * 504 * The "informational callback" is called at various 505 * points during the ASN1 encoding and decoding. It can 506 * be used to provide minor customisation of the structures 507 * used. This is most useful where the supplied routines 508 * *almost* do the right thing but need some extra help 509 * at a few points. If the callback returns zero then 510 * it is assumed a fatal error has occurred and the 511 * main operation should be abandoned. 512 * 513 * If major changes in the default behaviour are required 514 * then an external type is more appropriate. 515 */ 516 517 typedef int ASN1_aux_cb(int operation, ASN1_VALUE **in, const ASN1_ITEM *it, 518 void *exarg); 519 520 typedef struct ASN1_AUX_st { 521 void *app_data; 522 uint32_t flags; 523 int ref_offset; /* Offset of reference value */ 524 ASN1_aux_cb *asn1_cb; 525 int enc_offset; /* Offset of ASN1_ENCODING structure */ 526 } ASN1_AUX; 527 528 /* Flags in ASN1_AUX */ 529 530 /* Use a reference count */ 531 #define ASN1_AFLG_REFCOUNT 1 532 /* Save the encoding of structure (useful for signatures) */ 533 #define ASN1_AFLG_ENCODING 2 534 535 /* operation values for asn1_cb */ 536 537 #define ASN1_OP_NEW_PRE 0 538 #define ASN1_OP_NEW_POST 1 539 #define ASN1_OP_FREE_PRE 2 540 #define ASN1_OP_FREE_POST 3 541 #define ASN1_OP_D2I_PRE 4 542 #define ASN1_OP_D2I_POST 5 543 /* ASN1_OP_I2D_PRE and ASN1_OP_I2D_POST are not supported. We leave the 544 * constants undefined so code relying on them does not accidentally compile. */ 545 #define ASN1_OP_PRINT_PRE 8 546 #define ASN1_OP_PRINT_POST 9 547 #define ASN1_OP_STREAM_PRE 10 548 #define ASN1_OP_STREAM_POST 11 549 #define ASN1_OP_DETACHED_PRE 12 550 #define ASN1_OP_DETACHED_POST 13 551 552 /* Macro to implement a primitive type */ 553 #define IMPLEMENT_ASN1_TYPE(stname) IMPLEMENT_ASN1_TYPE_ex(stname, stname, 0) 554 #define IMPLEMENT_ASN1_TYPE_ex(itname, vname, ex) \ 555 ASN1_ITEM_start(itname) \ 556 ASN1_ITYPE_PRIMITIVE, V_##vname, NULL, 0, NULL, ex, #itname \ 557 ASN1_ITEM_end(itname) 558 559 /* Macro to implement a multi string type */ 560 #define IMPLEMENT_ASN1_MSTRING(itname, mask) \ 561 ASN1_ITEM_start(itname) \ 562 ASN1_ITYPE_MSTRING, mask, NULL, 0, NULL, sizeof(ASN1_STRING), #itname \ 563 ASN1_ITEM_end(itname) 564 565 #define IMPLEMENT_EXTERN_ASN1(sname, tag, fptrs) \ 566 ASN1_ITEM_start(sname) \ 567 ASN1_ITYPE_EXTERN, \ 568 tag, \ 569 NULL, \ 570 0, \ 571 &fptrs, \ 572 0, \ 573 #sname \ 574 ASN1_ITEM_end(sname) 575 576 /* Macro to implement standard functions in terms of ASN1_ITEM structures */ 577 578 #define IMPLEMENT_ASN1_FUNCTIONS(stname) IMPLEMENT_ASN1_FUNCTIONS_fname(stname, stname, stname) 579 580 #define IMPLEMENT_ASN1_FUNCTIONS_name(stname, itname) IMPLEMENT_ASN1_FUNCTIONS_fname(stname, itname, itname) 581 582 #define IMPLEMENT_ASN1_FUNCTIONS_ENCODE_name(stname, itname) \ 583 IMPLEMENT_ASN1_FUNCTIONS_ENCODE_fname(stname, itname, itname) 584 585 #define IMPLEMENT_STATIC_ASN1_ALLOC_FUNCTIONS(stname) \ 586 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_pfname(static, stname, stname, stname) 587 588 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS(stname) \ 589 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, stname, stname) 590 591 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_pfname(pre, stname, itname, fname) \ 592 pre stname *fname##_new(void) \ 593 { \ 594 return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \ 595 } \ 596 pre void fname##_free(stname *a) \ 597 { \ 598 ASN1_item_free((ASN1_VALUE *)a, ASN1_ITEM_rptr(itname)); \ 599 } 600 601 #define IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) \ 602 stname *fname##_new(void) \ 603 { \ 604 return (stname *)ASN1_item_new(ASN1_ITEM_rptr(itname)); \ 605 } \ 606 void fname##_free(stname *a) \ 607 { \ 608 ASN1_item_free((ASN1_VALUE *)a, ASN1_ITEM_rptr(itname)); \ 609 } 610 611 #define IMPLEMENT_ASN1_FUNCTIONS_fname(stname, itname, fname) \ 612 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(stname, itname, fname) \ 613 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) 614 615 #define IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(stname, itname, fname) \ 616 stname *d2i_##fname(stname **a, const unsigned char **in, long len) \ 617 { \ 618 return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, ASN1_ITEM_rptr(itname));\ 619 } \ 620 int i2d_##fname(stname *a, unsigned char **out) \ 621 { \ 622 return ASN1_item_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(itname));\ 623 } 624 625 /* This includes evil casts to remove const: they will go away when full 626 * ASN1 constification is done. 627 */ 628 #define IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(stname, itname, fname) \ 629 stname *d2i_##fname(stname **a, const unsigned char **in, long len) \ 630 { \ 631 return (stname *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, ASN1_ITEM_rptr(itname));\ 632 } \ 633 int i2d_##fname(const stname *a, unsigned char **out) \ 634 { \ 635 return ASN1_item_i2d((ASN1_VALUE *)a, out, ASN1_ITEM_rptr(itname));\ 636 } 637 638 #define IMPLEMENT_ASN1_DUP_FUNCTION(stname) \ 639 stname *stname##_dup(stname *x) { \ 640 return ASN1_item_dup(ASN1_ITEM_rptr(stname), x); \ 641 } 642 643 #define IMPLEMENT_ASN1_DUP_FUNCTION_const(stname) \ 644 stname *stname##_dup(const stname *x) { \ 645 return ASN1_item_dup(ASN1_ITEM_rptr(stname), (void *)x); \ 646 } 647 648 #define IMPLEMENT_ASN1_FUNCTIONS_const(name) \ 649 IMPLEMENT_ASN1_FUNCTIONS_const_fname(name, name, name) 650 651 #define IMPLEMENT_ASN1_FUNCTIONS_const_fname(stname, itname, fname) \ 652 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(stname, itname, fname) \ 653 IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(stname, itname, fname) 654 655 /* external definitions for primitive types */ 656 657 DECLARE_ASN1_ITEM(ASN1_SEQUENCE) 658 659 DEFINE_STACK_OF(ASN1_VALUE) 660 661 662 #if defined(__cplusplus) 663 } // extern "C" 664 #endif 665 666 #endif // OPENSSL_HEADER_ASN1T_H 667