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source: murachi/esteidfirefoxplugin/include/openssl/asn1t.h @ 28fc3c9

Last change on this file since 28fc3c9 was 7d3ae3e, checked in by antonioaraujob <aaraujo@…>, 9 years ago
Agregados archivos fuentes del complemento esteidfirefoxplugin de Estonia para firmar electrónicamente un hash.
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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

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