asn1.h@ 55747

Last change on this file since 55747 was 53010, checked in by vboxsync, 10 years ago
IPRT: Added electric fence allocator for ASN.1.
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1	/** @file
2	* IPRT - Abstract Syntax Notation One (ASN.1).
3	*/
4
5	/*
6	* Copyright (C) 2006-2014 Oracle Corporation
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*
16	* The contents of this file may alternatively be used under the terms
17	* of the Common Development and Distribution License Version 1.0
18	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19	* VirtualBox OSE distribution, in which case the provisions of the
20	* CDDL are applicable instead of those of the GPL.
21	*
22	* You may elect to license modified versions of this file under the
23	* terms and conditions of either the GPL or the CDDL or both.
24	*/
25
26	#ifndef ___iprt_asn1_h
27	#define ___iprt_asn1_h
28
29	#include <iprt/time.h>
30	#include <iprt/stdarg.h>
31	#include <iprt/err.h>
32	#include <iprt/formats/asn1.h>
33
34
35	RT_C_DECLS_BEGIN
36
37	/** @defgroup grp_rt_asn1 RTAsn1 - Abstract Syntax Notation One
38	* @ingroup grp_rt
39	* @{
40	*/
41
42
43	/** Pointer to ASN.1 allocation information. */
44	typedef struct RTASN1ALLOCATION *PRTASN1ALLOCATION;
45	/** Pointer to a ASN.1 byte decoder cursor. */
46	typedef struct RTASN1CURSOR *PRTASN1CURSOR;
47
48
49	/**
50	* Sketch of a custom ASN.1 allocator virtual method table.
51	*
52	* Any information required by the allocator should be associated with this
53	* structure, i.e. use this as a kind of parent class. This saves storage in
54	* RTASN1ALLOCATORINFO and possibly reduces the number of parameters by one.
55	*/
56	typedef struct RTASN1ALLOCATORVTABLE
57	{
58	/**
59	* Free a chunk of memory allocated by this allocator.
60	*
61	* @returns IPRT status code.
62	* @param pThis Pointer to the vtable structure.
63	* @param pAllocation Pointer to the allocation info structure.
64	* @param pv Pointer to the memory that shall be freed. Not NULL.
65	*/
66	DECLCALLBACKMEMBER(void, pfnFree)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ALLOCATION pAllocation,
67	void *pv);
68	/**
69	* Allocates a chunk of memory, all initialized to zero.
70	*
71	* @returns IPRT status code.
72	* @param pThis Pointer to the vtable structure.
73	* @param pAllocation Pointer to the allocation info structure.
74	* @param ppv Where to store the pointer on success.
75	* @param cb The minimum number of bytes to allocate. The actual
76	* number of bytes allocated shall be stored in
77	* pInfo->cbAllocated on success.
78	*/
79	DECLCALLBACKMEMBER(int, pfnAlloc)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ALLOCATION pAllocation,
80	void **ppv, size_t cb);
81	/**
82	* Reallocates a memory allocation.
83	*
84	* New memory does not need to be initialized, the caller takes care of that.
85	*
86	* This will not need to deal with free (@a cbNew == 0) or the initial
87	* allocation (@a pvOld == NULL), those calls will be directed to pfnFree and
88	* pfnAlloc respectively.
89	*
90	* @returns IPRT status code.
91	* @param pThis Pointer to the vtable structure.
92	* @param pAllocation Pointer to the allocation info structure.
93	* @param pvOld Pointer to the current allocation. Shall remain
94	* valid on failure, but may be invalid on success.
95	* @param ppvNew Where to store the pointer on success. Shall not be
96	* touched, except on successful returns.
97	* @param cbNew The new minimum allocation size. The actual number
98	* of bytes allocated shall be stored in
99	* pInfo->cbAllocated on success.
100	*/
101	DECLCALLBACKMEMBER(int, pfnRealloc)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ALLOCATION pAllocation,
102	void pvOld, void *ppvNew, size_t cbNew);
103	} RTASN1ALLOCATORVTABLE;
104	/** Pointer to an ASN.1 allocator vtable. */
105	typedef RTASN1ALLOCATORVTABLE *PRTASN1ALLOCATORVTABLE;
106	/** Pointer to a const ASN.1 allocator vtable. */
107	typedef RTASN1ALLOCATORVTABLE const *PCRTASN1ALLOCATORVTABLE;
108
109	/** The default ASN.1 allocator. */
110	extern RTDATADECL(RTASN1ALLOCATORVTABLE const) g_RTAsn1DefaultAllocator;
111
112	/** The Electric Fence ASN.1 allocator. */
113	extern RTDATADECL(RTASN1ALLOCATORVTABLE const) g_RTAsn1EFenceAllocator;
114
115
116	/**
117	* Allocation information.
118	*/
119	typedef struct RTASN1ALLOCATION
120	{
121	/** The number of bytes currently allocated. */
122	uint32_t cbAllocated;
123	/** Number of realloc calls. */
124	uint16_t cReallocs;
125	/** Reserved / padding. */
126	uint16_t uReserved0;
127	/** Allocator vtable, NULL for the default allocator. */
128	PCRTASN1ALLOCATORVTABLE pAllocator;
129	} RTASN1ALLOCATION;
130
131
132	/**
133	* Grow an array by zero initialized memory.
134	*
135	* @returns IPRT status code.
136	* @param pAllocation The allocation record (initialized by
137	* RTAsn1CursorInitAllocation or similar).
138	* @param ppvArray Pointer to the variable pointing to the array. This is
139	* both input and output. Remains valid on failure.
140	* @param cbEntry The size of an array entry.
141	* @param cCurrent The current entry count. (Relevant for zero
142	* initialization of the new entries.)
143	* @param cNew The new entry count.
144	*/
145	RTDECL(int) RTAsn1MemGrowArray(PRTASN1ALLOCATION pAllocation, void **ppvArray, size_t cbEntry,
146	uint32_t cCurrent, uint32_t cNew);
147
148	/**
149	* Allocate a block of zero initialized memory.
150	*
151	* @returns IPRT status code.
152	* @param pAllocation The allocation record (initialized by
153	* RTAsn1CursorInitAllocation or similar).
154	* @param ppvMem Where to return the pointer to the block.
155	* @param cbMem The minimum number of bytes to allocate.
156	*/
157	RTDECL(int) RTAsn1MemAllocZ(PRTASN1ALLOCATION pAllocation, void **ppvMem, size_t cbMem);
158
159	/**
160	* Allocates a block of memory initialized to the content of @a pvSrc.
161	*
162	* @returns IPRT status code.
163	* @param pAllocation The allocation record (initialized by
164	* RTAsn1CursorInitAllocation or similar).
165	* @param ppvMem Where to return the pointer to the block.
166	* @param pvSrc The source memory.
167	* @param cbMem The minimum number of bytes to allocate.
168	*/
169	RTDECL(int) RTAsn1MemDup(PRTASN1ALLOCATION pAllocation, void *ppvMem, void const pvSrc, size_t cbMem);
170
171	/**
172	* Free a memory block.
173	*
174	* @param pAllocation The allocation record (initialized by
175	* RTAsn1CursorInitAllocation or similar).
176	* @param pv The memory block to free. NULL will be ignored.
177	*/
178	RTDECL(void) RTAsn1MemFree(PRTASN1ALLOCATION pAllocation, void *pv);
179
180	/**
181	* Initalize an allocation.
182	*
183	* @param pAllocation The allocation record (initialized by
184	* RTAsn1CursorInitAllocation or similar).
185	* @param pAllocator The allocator
186	*/
187	RTDECL(PRTASN1ALLOCATION) RTAsn1MemInitAllocation(PRTASN1ALLOCATION pAllocation, PCRTASN1ALLOCATORVTABLE pAllocator);
188
189	RTDECL(int) RTAsn1ContentAllocZ(struct RTASN1CORE *pAsn1Core, size_t cb, PCRTASN1ALLOCATORVTABLE pAllocator);
190	RTDECL(int) RTAsn1ContentDup(struct RTASN1CORE pAsn1Core, void const pvSrc, size_t cbSrc, PCRTASN1ALLOCATORVTABLE pAllocator);
191	RTDECL(int) RTAsn1ContentReallocZ(struct RTASN1CORE *pAsn1Core, size_t cb, PCRTASN1ALLOCATORVTABLE pAllocator);
192	RTDECL(void) RTAsn1ContentFree(struct RTASN1CORE *pAsn1Core);
193
194
195
196	/** Pointer to a core ASN.1 encoding info structure. */
197	typedef struct RTASN1CORE *PRTASN1CORE;
198	/** Pointer to a const core ASN.1 encoding info structure. */
199	typedef struct RTASN1CORE const *PCRTASN1CORE;
200
201
202	/**
203	* ASN.1 object enumeration callback.
204	*
205	* @returns IPRT status code. VINF_SUCCESS continues the enumberation, all
206	* others quit it and is returned to the caller's caller.
207	* @param pAsn1Core The ASN.1 object we're called back about.
208	* @param pszName The member name. Array member names ends with
209	* '[#]'.
210	* @param uDepth The current depth.
211	* @param pvUser Callback user parameter.
212	*/
213	typedef DECLCALLBACK(int) FNRTASN1ENUMCALLBACK(struct RTASN1CORE pAsn1Core, const char pszName, uint32_t uDepth, void *pvUser);
214	/** Pointer to an ASN.1 object enumeration callback. */
215	typedef FNRTASN1ENUMCALLBACK *PFNRTASN1ENUMCALLBACK;
216
217	/**
218	* ASN.1 object encoding writer callback.
219	*
220	* @returns IPRT status code.
221	* @param pbBuf Pointer to the bytes to output.
222	* @param cbToWrite The number of bytes to write.
223	* @param pvUser Callback user parameter.
224	* @param pErrInfo Where to store extended error info. Optional.
225	*/
226	typedef DECLCALLBACK(int) FNRTASN1ENCODEWRITER(const void pvBuf, size_t cbToWrite, void pvUser, PRTERRINFO pErrInfo);
227	/** Pointer to an ASN.1 encoding writer callback. */
228	typedef FNRTASN1ENCODEWRITER *PFNRTASN1ENCODEWRITER;
229
230	/** @name ASN.1 Vtable Method Types
231	* @{ */
232
233	/**
234	* Destructor.
235	*
236	* RTAsn1Destroy will first destroy all children by recursive calls to pfnEnum,
237	* afterwards it will call this method to release any memory or other resources
238	* associated with this object. The memory backing the object structure shall
239	* not be freed by this method.
240	*
241	* @param pThisCore Pointer to the ASN.1 core to destroy.
242	*/
243	typedef DECLCALLBACK(void) FNRTASN1COREVTDTOR(PRTASN1CORE pThisCore);
244	/** Pointer to a FNRTASN1COREVTDTOR method. */
245	typedef FNRTASN1COREVTDTOR *PFNRTASN1COREVTDTOR;
246
247	/**
248	* Enumerate members (not necessary for primitive objects).
249	*
250	* @returns IPRT status code, any non VINF_SUCCESS value stems from pfnCallback.
251	* @param pThisCore Pointer to the ASN.1 core to enumerate members of.
252	* @param pfnCallback The callback.
253	* @param uDepth The depth of this object. Children are at +1.
254	* @param pvUser Callback user argument.
255	*/
256	typedef DECLCALLBACK(int) FNRTASN1COREVTENUM(PRTASN1CORE pThisCore, PFNRTASN1ENUMCALLBACK pfnCallback,
257	uint32_t uDepth, void *pvUser);
258	/** Pointer to a FNRTASN1COREVTENUM method. */
259	typedef FNRTASN1COREVTENUM *PFNRTASN1COREVTENUM;
260
261	/**
262	* Clone method.
263	*
264	* @param pThisCore Pointer to the ASN.1 core to initialize as a clone
265	* of pSrcClone. (The caller is responsible for making
266	* sure there is sufficent space and such.)
267	* @param pSrcCore The object to clone.
268	* @param pAllocator The allocator to use.
269	*/
270	typedef DECLCALLBACK(int) FNRTASN1COREVTCLONE(PRTASN1CORE pThisCore, PCRTASN1CORE pSrcCore, PCRTASN1ALLOCATORVTABLE pAllocator);
271	/** Pointer to a FNRTASN1COREVTCLONE method. */
272	typedef FNRTASN1COREVTCLONE *PFNRTASN1COREVTCLONE;
273
274	/**
275	* Compare method.
276	*
277	* The caller makes sure both cores are present and have the same Vtable.
278	*
279	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
280	* @param pLeftCore Pointer to the ASN.1 core of the left side object.
281	* @param pRightCore Pointer to the ASN.1 core of the right side object.
282	*/
283	typedef DECLCALLBACK(int) FNRTASN1COREVTCOMPARE(PCRTASN1CORE pLeftCore, PCRTASN1CORE pRightCore);
284	/** Pointer to a FNRTASN1COREVTCOMPARE method. */
285	typedef FNRTASN1COREVTCOMPARE *PFNRTASN1COREVTCOMPARE;
286
287	/**
288	* Check sanity method.
289	*
290	* @returns IPRT status code.
291	* @param pThisCore Pointer to the ASN.1 core of the object to check out.
292	* @param fFlags See RTASN1_CHECK_SANITY_F_XXX.
293	* @param pszErrInfo Where to return additional error details. Optional.
294	* @param pszErrorTag Tag for the additional error details.
295	*/
296	typedef DECLCALLBACK(int) FNRTASN1COREVTCHECKSANITY(PCRTASN1CORE pThisCore, uint32_t fFlags,
297	PRTERRINFO pErrInfo, const char *pszErrorTag);
298	/** Pointer to a FNRTASN1COREVTCHECKSANITY method. */
299	typedef FNRTASN1COREVTCHECKSANITY *PFNRTASN1COREVTCHECKSANITY;
300
301	/**
302	* Optional encoding preparations.
303	*
304	* On successful return, the pThisCore->cb value shall be valid and up to date.
305	* Will be called for any present object, including ones with default values and
306	* similar.
307	*
308	* @returns IPRT status code
309	* @param pThisCore Pointer to the ASN.1 core to enumerate members of.
310	* @param fFlags Encoding flags, RTASN1ENCODE_F_XXX.
311	* @param pErrInfo Where to return extra error information. Optional.
312	*/
313	typedef DECLCALLBACK(int) FNRTASN1COREVTENCODEPREP(PRTASN1CORE pThisCore, uint32_t fFlags, PRTERRINFO pErrInfo);
314	/** Pointer to a FNRTASN1COREVTENCODEWRITE method. */
315	typedef FNRTASN1COREVTENCODEPREP *PFNRTASN1COREVTENCODEPREP;
316
317	/**
318	* Optional encoder writer.
319	*
320	* This writes the header as well as all the content. Will be called for any
321	* present object, including ones with default values and similar.
322	*
323	* @returns IPRT status code.
324	* @param pThisCore Pointer to the ASN.1 core to enumerate members of.
325	* @param fFlags Encoding flags, RTASN1ENCODE_F_XXX.
326	* @param pfnWriter The output writer function.
327	* @param pvUser The user context for the writer function.
328	* @param pErrInfo Where to return extra error information. Optional.
329	*/
330	typedef DECLCALLBACK(int) FNRTASN1COREVTENCODEWRITE(PRTASN1CORE pThisCore, uint32_t fFlags, PFNRTASN1ENCODEWRITER pfnWriter,
331	void *pvUser, PRTERRINFO pErrInfo);
332	/** Pointer to a FNRTASN1COREVTENCODEWRITE method. */
333	typedef FNRTASN1COREVTENCODEWRITE *PFNRTASN1COREVTENCODEWRITE;
334	/** @} */
335
336	/** Mask of common flags. These will be propagated during sanity checking.
337	* Bits not in this mask are type specfic. */
338	#define RTASN1_CHECK_SANITY_F_COMMON_MASK UINT32_C(0xffff0000)
339
340	/**
341	* ASN.1 core vtable.
342	*/
343	typedef struct RTASN1COREVTABLE
344	{
345	/** The name. */
346	const char *pszName;
347	/** Size of the structure. */
348	uint32_t cbStruct;
349	/** The default tag, UINT8_MAX if not applicable. */
350	uint8_t uDefaultTag;
351	/** The default class and flags. */
352	uint8_t fDefaultClass;
353	/** Reserved for later / alignment. */
354	uint16_t uReserved;
355	/** @copydoc FNRTASN1COREVTDTOR */
356	PFNRTASN1COREVTDTOR pfnDtor;
357	/** @copydoc FNRTASN1COREVTENUM */
358	PFNRTASN1COREVTENUM pfnEnum;
359	/** @copydoc FNRTASN1COREVTCLONE */
360	PFNRTASN1COREVTCLONE pfnClone;
361	/** @copydoc FNRTASN1COREVTCOMPARE */
362	PFNRTASN1COREVTCOMPARE pfnCompare;
363	/** @copydoc FNRTASN1COREVTCHECKSANITY */
364	PFNRTASN1COREVTCHECKSANITY pfnCheckSanity;
365	/** @copydoc FNRTASN1COREVTENCODEPREP */
366	PFNRTASN1COREVTENCODEPREP pfnEncodePrep;
367	/** @copydoc FNRTASN1COREVTENUM */
368	PFNRTASN1COREVTENCODEWRITE pfnEncodeWrite;
369	} RTASN1COREVTABLE;
370	/** Pointer to an ASN.1 allocator vtable. */
371	typedef struct RTASN1COREVTABLE *PRTASN1COREVTABLE;
372	/** Pointer to a const ASN.1 allocator vtable. */
373	typedef RTASN1COREVTABLE const *PCRTASN1COREVTABLE;
374
375
376	/** @name Helper macros for prototyping standard functions for an ASN.1 type.
377	* @{ */
378	#define RTASN1TYPE_STANDARD_PROTOTYPES_NO_GET_CORE(a_TypeNm, a_DeclMacro, a_ImplExtNm) \
379	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Init)(RT_CONCAT(P,a_TypeNm) pThis, PCRTASN1ALLOCATORVTABLE pAllocator); \
380	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Clone)(RT_CONCAT(P,a_TypeNm) pThis, RT_CONCAT(PC,a_TypeNm) pSrc, \
381	PCRTASN1ALLOCATORVTABLE pAllocator); \
382	a_DeclMacro(void) RT_CONCAT(a_ImplExtNm,_Delete)(RT_CONCAT(P,a_TypeNm) pThis); \
383	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Enum)(RT_CONCAT(P,a_TypeNm) pThis, PFNRTASN1ENUMCALLBACK pfnCallback, \
384	uint32_t uDepth, void *pvUser); \
385	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Compare)(RT_CONCAT(PC,a_TypeNm) pLeft, RT_CONCAT(PC,a_TypeNm) pRight); \
386	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_DecodeAsn1)(PRTASN1CURSOR pCursor, uint32_t fFlags, RT_CONCAT(P,a_TypeNm) pThis,\
387	const char *pszErrorTag); \
388	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_CheckSanity)(RT_CONCAT(PC,a_TypeNm) pThis, uint32_t fFlags, \
389	PRTERRINFO pErrInfo, const char *pszErrorTag)
390
391
392	/** @name Helper macros for prototyping standard functions for an ASN.1 type.
393	* @{ */
394	#define RTASN1TYPE_STANDARD_PROTOTYPES(a_TypeNm, a_DeclMacro, a_ImplExtNm, a_Asn1CoreNm) \
395	DECL_FORCE_INLINE(PRTASN1CORE) RT_CONCAT(a_ImplExtNm,_GetAsn1Core)(RT_CONCAT(PC,a_TypeNm) pThis) \
396	{ return (PRTASN1CORE)&pThis->a_Asn1CoreNm; } \
397	DECLINLINE(bool) RT_CONCAT(a_ImplExtNm,_IsPresent)(RT_CONCAT(PC,a_TypeNm) pThis) \
398	{ return pThis && RTASN1CORE_IS_PRESENT(&pThis->a_Asn1CoreNm); } \
399	RTASN1TYPE_STANDARD_PROTOTYPES_NO_GET_CORE(a_TypeNm, a_DeclMacro, a_ImplExtNm)
400
401
402	/** Aliases two ASN.1 types, no method aliases. */
403	#define RTASN1TYPE_ALIAS_TYPE_ONLY(a_TypeNm, a_AliasType) \
404	typedef a_AliasType a_TypeNm; \
405	typedef a_TypeNm *RT_CONCAT(P,a_TypeNm); \
406	typedef a_TypeNm const *RT_CONCAT(PC,a_TypeNm)
407
408	/** Aliases two ASN.1 types and methods. */
409	#define RTASN1TYPE_ALIAS(a_TypeNm, a_AliasType, a_ImplExtNm, a_AliasExtNm) \
410	typedef a_AliasType a_TypeNm; \
411	typedef a_TypeNm *RT_CONCAT(P,a_TypeNm); \
412	\
413	DECLINLINE(PRTASN1CORE) RT_CONCAT(a_ImplExtNm,_GetAsn1Core)(a_TypeNm const *pThis) \
414	{ return RT_CONCAT(a_AliasExtNm,_GetAsn1Core)(pThis); } \
415	DECLINLINE(bool) RT_CONCAT(a_ImplExtNm,_IsPresent)(a_TypeNm const *pThis) \
416	{ return RT_CONCAT(a_AliasExtNm,_IsPresent)(pThis); } \
417	\
418	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_Init)(RT_CONCAT(P,a_TypeNm) pThis, PCRTASN1ALLOCATORVTABLE pAllocator) \
419	{ return RT_CONCAT(a_AliasExtNm,_Init)(pThis, pAllocator); } \
420	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_Clone)(RT_CONCAT(P,a_TypeNm) pThis, a_TypeNm const *pSrc, \
421	PCRTASN1ALLOCATORVTABLE pAllocator) \
422	{ return RT_CONCAT(a_AliasExtNm,_Clone)(pThis, pSrc, pAllocator); } \
423	DECLINLINE(void) RT_CONCAT(a_ImplExtNm,_Delete)(RT_CONCAT(P,a_TypeNm) pThis) \
424	{ RT_CONCAT(a_AliasExtNm,_Delete)(pThis); } \
425	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_Enum)(a_TypeNm *pThis, PFNRTASN1ENUMCALLBACK pfnCallback, \
426	uint32_t uDepth, void *pvUser) \
427	{ return RT_CONCAT(a_AliasExtNm,_Enum)(pThis, pfnCallback, uDepth, pvUser); } \
428	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_Compare)(a_TypeNm const pLeft, a_TypeNm const pRight) \
429	{ return RT_CONCAT(a_AliasExtNm,_Compare)(pLeft, pRight); } \
430	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_DecodeAsn1)(PRTASN1CURSOR pCursor, uint32_t fFlags, RT_CONCAT(P,a_TypeNm) pThis,\
431	const char *pszErrorTag) \
432	{ return RT_CONCAT(a_AliasExtNm,_DecodeAsn1)(pCursor, fFlags, pThis, pszErrorTag); } \
433	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_CheckSanity)(a_TypeNm const *pThis, uint32_t fFlags, \
434	PRTERRINFO pErrInfo, const char *pszErrorTag) \
435	{ return RT_CONCAT(a_AliasExtNm,_CheckSanity)(pThis, fFlags, pErrInfo, pszErrorTag); } \
436	\
437	typedef a_TypeNm const *RT_CONCAT(PC,a_TypeNm)
438
439	/** @} */
440
441
442	/**
443	* Core ASN.1 structure for storing encoding details and data location.
444	*
445	* This is used as a 'parent' for all other decoded ASN.1 based structures.
446	*/
447	typedef struct RTASN1CORE
448	{
449	/** The tag.
450	* @remarks 32-bit should be enough for everyone... We don't currently
451	* implement decoding tags larger than 30 anyway. :-) */
452	uint32_t uTag;
453	/** Tag class and flags (ASN1_TAGCLASS_XXX and ASN1_TAGFLAG_XXX). */
454	uint8_t fClass;
455	/** The real tag value for IMPLICT tag overrides. */
456	uint8_t uRealTag;
457	/** The real class value for IMPLICT tag overrides. */
458	uint8_t fRealClass;
459	/** The size of the tag and length ASN.1 header. */
460	uint8_t cbHdr;
461	/** Length. */
462	uint32_t cb;
463	/** IPRT flags (RTASN1CORE_F_XXX). */
464	uint32_t fFlags;
465	/** Pointer to the data.
466	* After decoding this generally points to the encoded data content. When
467	* preparting something for encoding or otherwise constructing things in memory,
468	* this generally points heap memory or read-only constants.
469	* @sa RTAsn1ContentAllocZ, RTAsn1ContentReallocZ, RTAsn1ContentDup,
470	* RTAsn1ContentFree. */
471	RTCPTRUNION uData;
472	/** Pointer to the virtual method table for this object. Optional. */
473	PCRTASN1COREVTABLE pOps;
474	} RTASN1CORE;
475	/** The Vtable for a RTASN1CORE structure when not in some way use used as a
476	* parent type/class. */
477	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Core_Vtable;
478
479	RTASN1TYPE_STANDARD_PROTOTYPES_NO_GET_CORE(RTASN1CORE, RTDECL, RTAsn1Core);
480
481	/** @name RTASN1CORE_F_XXX - Flags for RTASN1CORE::fFlags
482	* @{ */
483	/** Present/valid. */
484	#define RTASN1CORE_F_PRESENT RT_BIT_32(0)
485	/** Not present in stream, using default value. */
486	#define RTASN1CORE_F_DEFAULT RT_BIT_32(1)
487	/** The tag was overriden by an implict context tag or some such thing,
488	* RTASN1CORE::uImplicitTag hold the universal tag value if one exists. */
489	#define RTASN1CORE_F_TAG_IMPLICIT RT_BIT_32(2)
490	/** Primitive tag with the corresponding RTASN1XXX struct. */
491	#define RTASN1CORE_F_PRIMITE_TAG_STRUCT RT_BIT_32(3)
492	/** Dummy node typically used with choices, has children, not encoded, must be
493	* ignored. */
494	#define RTASN1CORE_F_DUMMY RT_BIT_32(4)
495	/** Allocated content (pointed to by uData).
496	* The content should is still be considered 104% read-only by anyone other
497	* than then type methods (pOps and associates). */
498	#define RTASN1CORE_F_ALLOCATED_CONTENT RT_BIT_32(5)
499	/** Decoded content (pointed to by uData).
500	* Mutually exclusive with RTASN1CORE_F_ALLOCATED_CONTENT. If neither is
501	* set, uData might be NULL or point to some shared static memory for
502	* frequently used values. */
503	#define RTASN1CORE_F_DECODED_CONTENT RT_BIT_32(6)
504	/** @} */
505
506
507	/** Check s whether an ASN.1 core object present in some way (default data,
508	* decoded data, ...). */
509	#define RTASN1CORE_IS_PRESENT(a_pAsn1Core) ( RT_BOOL((a_pAsn1Core)->fFlags) )
510
511	/** Check s whether an ASN.1 core object is a dummy object (and is present). */
512	#define RTASN1CORE_IS_DUMMY(a_pAsn1Core) ( RT_BOOL((a_pAsn1Core)->fFlags & RTASN1CORE_F_DUMMY) )
513
514	/**
515	* Calculates pointer to the raw ASN.1 record.
516	*
517	* ASSUMES that it's decoded content and that cbHdr and uData are both valid.
518	*
519	* @returns Byte pointer to the first tag byte.
520	* @param a_pAsn1Core The ASN.1 core.
521	*/
522	#define RTASN1CORE_GET_RAW_ASN1_PTR(a_pAsn1Core) ( (a_pAsn1Core)->uData.pu8 - (a_pAsn1Core)->cbHdr )
523
524	/**
525	* Calculates the length of the raw ASN.1 record to go with the
526	* RTASN1CORE_GET_RAW_ASN1_PTR() result.
527	*
528	* ASSUMES that it's decoded content and that cbHdr and uData are both valid.
529	*
530	* @returns Size in bytes (uint32_t).
531	* @param a_pAsn1Core The ASN.1 core.
532	*/
533	#define RTASN1CORE_GET_RAW_ASN1_SIZE(a_pAsn1Core) ( (a_pAsn1Core)->cbHdr + (a_pAsn1Core)->cb )
534
535	/**
536	* Retrievs the tag or implicit tag depending on the RTASN1CORE_F_TAG_IMPLICIT
537	* flag.
538	*
539	* @returns The ASN.1 tag of the object.
540	* @param a_pAsn1Core The ASN.1 core.
541	*/
542	#define RTASN1CORE_GET_TAG(a_pAsn1Core) ( !((a_pAsn1Core)->fFlags & RTASN1CORE_F_TAG_IMPLICIT) ? (a_pAsn1Core)->uTag : (a_pAsn1Core)->uRealTag )
543
544
545	DECL_FORCE_INLINE(PRTASN1CORE) RTAsn1Core_GetAsn1Core(PCRTASN1CORE pThis)
546	{
547	return (PRTASN1CORE)pThis;
548	}
549
550
551	DECL_FORCE_INLINE(bool) RTAsn1Core_IsPresent(PCRTASN1CORE pThis)
552	{
553	return pThis && RTASN1CORE_IS_PRESENT(pThis);
554	}
555
556
557	RTDECL(int) RTAsn1Core_InitEx(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass, PCRTASN1COREVTABLE pOps, uint32_t fFlags);
558	/**
559	* Initialize the ASN.1 core object representation to a default value.
560	*
561	* @returns VINF_SUCCESS
562	* @param pAsn1Core The ASN.1 core.
563	* @param uTag The tag number.
564	* @param fClass The tag class and flags.
565	*/
566	RTDECL(int) RTAsn1Core_InitDefault(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass);
567	RTDECL(int) RTAsn1Core_CloneContent(PRTASN1CORE pThis, PCRTASN1CORE pSrc, PCRTASN1ALLOCATORVTABLE pAllocator);
568	RTDECL(int) RTAsn1Core_CloneNoContent(PRTASN1CORE pThis, PCRTASN1CORE pSrc);
569	RTDECL(int) RTAsn1Core_SetTagAndFlags(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass);
570	RTDECL(int) RTAsn1Core_ChangeTag(PRTASN1CORE pAsn1Core, uint32_t uTag);
571	RTDECL(void) RTAsn1Core_ResetImplict(PRTASN1CORE pThis);
572	RTDECL(int) RTAsn1Core_CompareEx(PCRTASN1CORE pLeft, PCRTASN1CORE pRight, bool fIgnoreTagAndClass);
573
574
575	/**
576	* Dummy ASN.1 object for use in choices and similar non-sequence structures.
577	*
578	* This allows hooking up destructors, enumerators and such, as well as not
579	* needing custom code for sequence-of / set-of collections.
580	*/
581	typedef struct RTASN1DUMMY
582	{
583	/** Core ASN.1. */
584	RTASN1CORE Asn1Core;
585	} RTASN1DUMMY;
586	/** Pointer to a dummy record. */
587	typedef RTASN1DUMMY *PRTASN1DUMMY;
588
589
590	/**
591	* Initalizes a dummy ASN.1 object.
592	*
593	* @returns VINF_SUCCESS.
594	* @param pThis The dummy object.
595	*/
596	RTDECL(int) RTAsn1Dummy_InitEx(PRTASN1DUMMY pThis);
597
598	/**
599	* Standard compliant initalizer.
600	*
601	* @returns VINF_SUCCESS.
602	* @param pThis The dummy object.
603	* @param pAllocator Ignored.
604	*/
605	DECLINLINE(int) RTAsn1Dummy_Init(PRTASN1DUMMY pThis, PCRTASN1ALLOCATORVTABLE pAllocator)
606	{
607	return RTAsn1Dummy_InitEx(pThis);
608	}
609
610
611	/**
612	* ASN.1 sequence core (IPRT representation).
613	*/
614	typedef struct RTASN1SEQUENCECORE
615	{
616	/** Core ASN.1 encoding details. */
617	RTASN1CORE Asn1Core;
618	} RTASN1SEQUENCECORE;
619	/** Pointer to an ASN.1 sequence core (IPRT representation). */
620	typedef RTASN1SEQUENCECORE *PRTASN1SEQUENCECORE;
621	/** Pointer to a const ASN.1 sequence core (IPRT representation). */
622	typedef RTASN1SEQUENCECORE const *PCRTASN1SEQUENCECORE;
623
624	RTDECL(int) RTAsn1SequenceCore_Init(PRTASN1SEQUENCECORE pSeqCore, PCRTASN1COREVTABLE pVtable);
625	RTDECL(int) RTAsn1SequenceCore_Clone(PRTASN1SEQUENCECORE pSeqCore, PCRTASN1COREVTABLE pVtable, PCRTASN1SEQUENCECORE pSrc);
626
627	/**
628	* ASN.1 sequence-of core (IPRT representation).
629	*/
630	#if 0
631	typedef struct RTASN1SEQOFCORE
632	{
633	/** Core ASN.1 encoding details. */
634	RTASN1CORE Asn1Core;
635	} RTASN1SEQUENCECORE;
636	/** Pointer to an ASN.1 sequence-of core (IPRT representation). */
637	typedef RTASN1SEQUENCECORE *PRTASN1SEQUENCECORE;
638	/** Pointer to a const ASN.1 sequence-of core (IPRT representation). */
639	typedef RTASN1SEQUENCECORE const *PCRTASN1SEQUENCECORE;
640	#else
641	# define RTASN1SEQOFCORE RTASN1SEQUENCECORE
642	# define PRTASN1SEQOFCORE PRTASN1SEQUENCECORE
643	# define PCRTASN1SEQOFCORE PCRTASN1SEQUENCECORE
644	#endif
645	RTDECL(int) RTAsn1SeqOfCore_Init(PRTASN1SEQOFCORE pThis, PCRTASN1COREVTABLE pVtable);
646	RTDECL(int) RTAsn1SeqOfCore_Clone(PRTASN1SEQOFCORE pThis, PCRTASN1COREVTABLE pVtable, PCRTASN1SEQOFCORE pSrc);
647
648
649	/** Defines the typedefs and prototypes for a generic sequence-of type. */
650	#define RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(a_SeqOfType, a_ItemType, a_DeclMacro, a_ImplExtNm) \
651	typedef struct a_SeqOfType \
652	{ \
653	/** Sequence core. */ \
654	RTASN1SEQUENCECORE SeqCore; \
655	/** The array allocation tracker. */ \
656	RTASN1ALLOCATION Allocation; \
657	/** Items in the array. */ \
658	uint32_t cItems; \
659	/** Array. */ \
660	RT_CONCAT(P,a_ItemType) paItems; \
661	} a_SeqOfType; \
662	typedef a_SeqOfType *RT_CONCAT(P,a_SeqOfType); \
663	typedef a_SeqOfType const *RT_CONCAT(PC,a_SeqOfType); \
664	RTASN1TYPE_STANDARD_PROTOTYPES(a_SeqOfType, a_DeclMacro, a_ImplExtNm, SeqCore.Asn1Core)
665
666
667	/**
668	* ASN.1 set core (IPRT representation).
669	*/
670	typedef struct RTASN1SETCORE
671	{
672	/** Core ASN.1 encoding details. */
673	RTASN1CORE Asn1Core;
674	} RTASN1SETCORE;
675	/** Pointer to an ASN.1 set core (IPRT representation). */
676	typedef RTASN1SETCORE *PRTASN1SETCORE;
677	/** Pointer to a const ASN.1 set core (IPRT representation). */
678	typedef RTASN1SETCORE const *PCRTASN1SETCORE;
679
680	RTDECL(int) RTAsn1SetCore_Init(PRTASN1SETCORE pThis, PCRTASN1COREVTABLE pVtable);
681	RTDECL(int) RTAsn1SetCore_Clone(PRTASN1SETCORE pThis, PCRTASN1COREVTABLE pVtable, PCRTASN1SETCORE pSrc);
682
683	/**
684	* ASN.1 set-of core (IPRT representation).
685	*/
686	#if 0
687	typedef struct RTASN1SETOFCORE
688	{
689	/** Core ASN.1 encoding details. */
690	RTASN1CORE Asn1Core;
691	} RTASN1SETUENCECORE;
692	/** Pointer to an ASN.1 set-of core (IPRT representation). */
693	typedef RTASN1SETUENCECORE *PRTASN1SETUENCECORE;
694	/** Pointer to a const ASN.1 set-of core (IPRT representation). */
695	typedef RTASN1SETUENCECORE const *PCRTASN1SETUENCECORE;
696	#else
697	# define RTASN1SETOFCORE RTASN1SETCORE
698	# define PRTASN1SETOFCORE PRTASN1SETCORE
699	# define PCRTASN1SETOFCORE PCRTASN1SETCORE
700	#endif
701	RTDECL(int) RTAsn1SetOfCore_Init(PRTASN1SETOFCORE pThis, PCRTASN1COREVTABLE pVtable);
702	RTDECL(int) RTAsn1SetOfCore_Clone(PRTASN1SETOFCORE pThis, PCRTASN1COREVTABLE pVtable, PCRTASN1SETOFCORE pSrc);
703
704
705	/** Defines the typedefs and prototypes for a generic set-of type. */
706	#define RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(a_SetOfType, a_ItemType, a_DeclMacro, a_ImplExtNm) \
707	typedef struct a_SetOfType \
708	{ \
709	/** Set core. */ \
710	RTASN1SETCORE SetCore; \
711	/** The array allocation tracker. */ \
712	RTASN1ALLOCATION Allocation; \
713	/** Items in the array. */ \
714	uint32_t cItems; \
715	/** Array. */ \
716	RT_CONCAT(P,a_ItemType) paItems; \
717	} a_SetOfType; \
718	typedef a_SetOfType *RT_CONCAT(P,a_SetOfType); \
719	typedef a_SetOfType const *RT_CONCAT(PC,a_SetOfType); \
720	RTASN1TYPE_STANDARD_PROTOTYPES(a_SetOfType, a_DeclMacro, a_ImplExtNm, SetCore.Asn1Core)
721
722
723	/*
724	* Declare sets and sequences of the core structure.
725	*/
726	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFCORES, RTASN1CORE, RTDECL, RTAsn1SeqOfCores);
727	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFCORES, RTASN1CORE, RTDECL, RTAsn1SetOfCores);
728
729
730	/**
731	* ASN.1 null (IPRT representation).
732	*/
733	typedef struct RTASN1NULL
734	{
735	/** Core ASN.1 encoding details. */
736	RTASN1CORE Asn1Core;
737	} RTASN1NULL;
738	/** Pointer to an ASN.1 null (IPRT representation). */
739	typedef RTASN1NULL *PRTASN1NULL;
740	/** Pointer to a const ASN.1 null (IPRT representation). */
741	typedef RTASN1NULL const *PCRTASN1NULL;
742	/** The Vtable for a RTASN1NULL structure. */
743	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Null_Vtable;
744
745	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1NULL, RTDECL, RTAsn1Null, Asn1Core);
746
747
748	/**
749	* ASN.1 integer (IPRT representation).
750	*/
751	typedef struct RTASN1INTEGER
752	{
753	/** Core ASN.1 encoding details. */
754	RTASN1CORE Asn1Core;
755	/** The unsigned C representation of the 64 least significant bits.
756	* @note A ASN.1 integer doesn't define signed/unsigned and can have any
757	* length you like. Thus, the user needs to check the size and
758	* preferably use the access APIs for signed numbers. */
759	RTUINT64U uValue;
760	} RTASN1INTEGER;
761	/** Pointer to an ASN.1 integer (IPRT representation). */
762	typedef RTASN1INTEGER *PRTASN1INTEGER;
763	/** Pointer to a const ASN.1 integer (IPRT representation). */
764	typedef RTASN1INTEGER const *PCRTASN1INTEGER;
765	/** The Vtable for a RTASN1INTEGER structure. */
766	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Integer_Vtable;
767
768	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1INTEGER, RTDECL, RTAsn1Integer, Asn1Core);
769
770	/**
771	* Initializes an interger object to a default value.
772	* @returns VINF_SUCCESS.
773	* @param pBoolean The integer object representation.
774	* @param uValue The default value (unsigned 64-bit).
775	* @param pAllocator The allocator (pro forma).
776	*/
777	RTDECL(int) RTAsn1Integer_InitDefault(PRTASN1INTEGER pInteger, uint64_t uValue, PCRTASN1ALLOCATORVTABLE pAllocator);
778
779	RTDECL(int) RTAsn1Integer_InitU64(PRTASN1INTEGER pThis, uint64_t uValue, PCRTASN1ALLOCATORVTABLE pAllocator);
780
781	/**
782	* Get the most significat bit that's set (1).
783	*
784	* @returns 0-base bit number, -1 if all clear.
785	* @param pInteger The integer to check.
786	*/
787	RTDECL(int32_t) RTAsn1Integer_UnsignedLastBit(PCRTASN1INTEGER pInteger);
788
789	/**
790	* Compares two ASN.1 unsigned integers.
791	*
792	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
793	* @param pLeft The first ASN.1 integer.
794	* @param pRight The second ASN.1 integer.
795	*/
796	RTDECL(int) RTAsn1Integer_UnsignedCompare(PCRTASN1INTEGER pLeft, PCRTASN1INTEGER pRight);
797
798	/**
799	* Compares an ASN.1 unsigned integer with a uint64_t.
800	*
801	* @returns 0 if equal, -1 if @a pInteger is smaller, 1 if @a pInteger is
802	* larger.
803	* @param pInteger The ASN.1 integer to treat as unsigned.
804	* @param u64Const The uint64_t constant to compare with.
805	*/
806	RTDECL(int) RTAsn1Integer_UnsignedCompareWithU64(PCRTASN1INTEGER pInteger, uint64_t u64Const);
807
808	/**
809	* Compares an ASN.1 unsigned integer with a uint32_t.
810	*
811	* @returns 0 if equal, -1 if @a pInteger is smaller, 1 if @a pInteger is
812	* larger.
813	* @param pInteger The ASN.1 integer to treat as unsigned.
814	* @param u32Const The uint32_t constant to compare with.
815	* @remarks We don't bother with U16 and U8 variants, just use this instead.
816	*/
817	RTDECL(int) RTAsn1Integer_UnsignedCompareWithU32(PCRTASN1INTEGER pInteger, uint32_t u32Const);
818
819
820	/**
821	* Initializes a big integer number from an ASN.1 integer.
822	*
823	* @returns IPRT status code.
824	* @param pInteger The ASN.1 integer.
825	* @param pBigNum The big integer number structure to initialize.
826	* @param fBigNumInit Subset of RTBIGNUMINIT_F_XXX that concerns
827	* senitivity, signedness and endianness.
828	*/
829	RTDECL(int) RTAsn1Integer_ToBigNum(PCRTASN1INTEGER pInteger, PRTBIGNUM pBigNum, uint32_t fBigNumInit);
830	RTDECL(int) RTAsn1Integer_FromBigNum(PRTASN1INTEGER pThis, PCRTBIGNUM pBigNum, PCRTASN1ALLOCATORVTABLE pAllocator);
831
832	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFINTEGERS, RTASN1INTEGER, RTDECL, RTAsn1SeqOfIntegers);
833	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFINTEGERS, RTASN1INTEGER, RTDECL, RTAsn1SetOfIntegers);
834
835
836
837	/**
838	* ASN.1 boolean (IPRT representation).
839	*/
840	typedef struct RTASN1BOOLEAN
841	{
842	/** Core ASN.1 encoding details. */
843	RTASN1CORE Asn1Core;
844	/** The boolean value. */
845	bool fValue;
846	} RTASN1BOOLEAN;
847	/** Pointer to the IPRT representation of an ASN.1 boolean. */
848	typedef RTASN1BOOLEAN *PRTASN1BOOLEAN;
849	/** Pointer to the const IPRT representation of an ASN.1 boolean. */
850	typedef RTASN1BOOLEAN const *PCRTASN1BOOLEAN;
851	/** The Vtable for a RTASN1BOOLEAN structure. */
852	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Boolean_Vtable;
853
854	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1BOOLEAN, RTDECL, RTAsn1Boolean, Asn1Core);
855
856	/**
857	* Initializes a boolean object to a default value.
858	* @returns VINF_SUCCESS
859	* @param pBoolean The boolean object representation.
860	* @param fValue The default value.
861	* @param pAllocator The allocator (pro forma).
862	*/
863	RTDECL(int) RTAsn1Boolean_InitDefault(PRTASN1BOOLEAN pBoolean, bool fValue, PCRTASN1ALLOCATORVTABLE pAllocator);
864	RTDECL(int) RTAsn1Boolean_Set(PRTASN1BOOLEAN pThis, bool fValue);
865
866	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFBOOLEANS, RTASN1BOOLEAN, RTDECL, RTAsn1SeqOfBooleans);
867	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFBOOLEANS, RTASN1BOOLEAN, RTDECL, RTAsn1SetOfBooleans);
868
869
870
871	/**
872	* ASN.1 UTC and Generalized Time (IPRT representation).
873	*
874	* The two time types only differs in the precision the render (UTC time being
875	* the one for which you go "WTF were they thinking?!!" for in 2014).
876	*/
877	typedef struct RTASN1TIME
878	{
879	/** The core structure, either ASN1_TAG_UTC_TIME or
880	* ASN1_TAG_GENERALIZED_TIME. */
881	RTASN1CORE Asn1Core;
882	/** The exploded time. */
883	RTTIME Time;
884	} RTASN1TIME;
885	/** Pointer to an IPRT representation of ASN.1 UTC/Generalized time. */
886	typedef RTASN1TIME *PRTASN1TIME;
887	/** Pointer to a const IPRT representation of ASN.1 UTC/Generalized time. */
888	typedef RTASN1TIME const *PCRTASN1TIME;
889	/** The Vtable for a RTASN1TIME structure. */
890	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Time_Vtable;
891
892	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1TIME, RTDECL, RTAsn1Time, Asn1Core);
893
894	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1TIME, RTDECL, RTAsn1UtcTime, Asn1Core);
895	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1TIME, RTDECL, RTAsn1GeneralizedTime, Asn1Core);
896
897	/**
898	* Compares two ASN.1 time values.
899	*
900	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
901	* @param pLeft The first ASN.1 time object.
902	* @param pTsRight The second time to compare.
903	*/
904	RTDECL(int) RTAsn1Time_CompareWithTimeSpec(PCRTASN1TIME pLeft, PCRTTIMESPEC pTsRight);
905
906	/** @name Predicate macros for determing the exact type of RTASN1TIME.
907	* @{ */
908	/** True if UTC time. */
909	#define RTASN1TIME_IS_UTC_TIME(a_pAsn1Time) ((a_pAsn1Time)->Asn1Core.uTag == ASN1_TAG_UTC_TIME)
910	/** True if generalized time. */
911	#define RTASN1TIME_IS_GENERALIZED_TIME(a_pAsn1Time) ((a_pAsn1Time)->Asn1Core.uTag == ASN1_TAG_GENERALIZED_TIME)
912	/** @} */
913
914	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFTIMES, RTASN1TIME, RTDECL, RTAsn1SeqOfTimes);
915	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFTIMES, RTASN1TIME, RTDECL, RTAsn1SetOfTimes);
916
917
918
919	/**
920	* ASN.1 object identifier (IPRT representation).
921	*/
922	typedef struct RTASN1OBJID
923	{
924	/** Core ASN.1 encoding details. */
925	RTASN1CORE Asn1Core;
926	/** Coverning the paComponents memory allocation if there isn't enough room in
927	* szObjId for both the dottet string and the component values. */
928	RTASN1ALLOCATION Allocation;
929	/** Pointer to an array with the component values.
930	* This may point within szObjId if there is enough space for both there. */
931	uint32_t const *pauComponents;
932	/** The number of components in the object identifier.
933	* This ASSUMES that nobody will be ever needing more than 255 components. */
934	uint8_t cComponents;
935	/** The dotted string representation of the object identifier.
936	* If there is sufficient space after the string, we will place the array that
937	* paComponents points to here and/or the raw content bytes (Asn1Core.uData).
938	*
939	* An analysis of dumpasn1.cfg, hl7.org and our own _OID defines indicates
940	* that we need space for at least 10 components and 30-something chars. We've
941	* allocated 87 bytes, which we ASSUME should be enough for everyone. */
942	char szObjId[87];
943	} RTASN1OBJID;
944	/** Pointer to an ASN.1 object identifier representation. */
945	typedef RTASN1OBJID *PRTASN1OBJID;
946	/** Pointer to a const ASN.1 object identifier representation. */
947	typedef RTASN1OBJID const *PCRTASN1OBJID;
948	/** The Vtable for a RTASN1OBJID structure. */
949	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1ObjId_Vtable;
950
951	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1OBJID, RTDECL, RTAsn1ObjId, Asn1Core);
952
953	RTDECL(int) RTAsn1ObjId_InitFromString(PRTASN1OBJID pThis, const char *pszObjId, PCRTASN1ALLOCATORVTABLE pAllocator);
954
955	/**
956	* Compares an ASN.1 object identifier with a dotted object identifier string.
957	*
958	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
959	* @param pThis The ASN.1 object identifier.
960	* @param pszRight The dotted object identifier string.
961	*/
962	RTDECL(int) RTAsn1ObjId_CompareWithString(PCRTASN1OBJID pThis, const char *pszRight);
963
964	/**
965	* Checks if an ASN.1 object identifier starts with the given dotted object
966	* identifier string.
967	*
968	* The matching is only successful if the given string matches matches the last
969	* component completely.
970	*
971	* @returns true / false.
972	* @param pThis The ASN.1 object identifier.
973	* @param pszStartsWith The dotted object identifier string.
974	*/
975	RTDECL(bool) RTAsn1ObjId_StartsWith(PCRTASN1OBJID pThis, const char *pszStartsWith);
976
977	RTDECL(uint8_t) RTAsn1ObjIdCountComponents(PCRTASN1OBJID pThis);
978	RTDECL(uint32_t) RTAsn1ObjIdGetComponentsAsUInt32(PCRTASN1OBJID pThis, uint8_t iComponent);
979	RTDECL(uint32_t) RTAsn1ObjIdGetLastComponentsAsUInt32(PCRTASN1OBJID pThis);
980
981	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFOBJIDS, RTASN1OBJID, RTDECL, RTAsn1SeqOfObjIds);
982	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFOBJIDS, RTASN1OBJID, RTDECL, RTAsn1SetOfObjIds);
983
984
985	/**
986	* ASN.1 bit string (IPRT representation).
987	*/
988	typedef struct RTASN1BITSTRING
989	{
990	/** Core ASN.1 encoding details. */
991	RTASN1CORE Asn1Core;
992	/** The number of bits. */
993	uint32_t cBits;
994	/** The max number of bits (given at decoding / construction). */
995	uint32_t cMaxBits;
996	/** Pointer to the bits. */
997	RTCPTRUNION uBits;
998	/** Pointer to user structure encapsulated in this string, if dynamically
999	* allocated the EncapsulatedAllocation member can be used to track it and
1000	* trigger automatic cleanup on object destruction. If EncapsulatedAllocation
1001	* is zero, any object pointed to will only be deleted. */
1002	PRTASN1CORE pEncapsulated;
1003	/** Allocation tracking structure for pEncapsulated. */
1004	RTASN1ALLOCATION EncapsulatedAllocation;
1005	} RTASN1BITSTRING;
1006	/** Pointer to the IPRT representation of an ASN.1 bit string. */
1007	typedef RTASN1BITSTRING *PRTASN1BITSTRING;
1008	/** Pointer to the const IPRT representation of an ASN.1 bit string. */
1009	typedef RTASN1BITSTRING const *PCRTASN1BITSTRING;
1010	/** The Vtable for a RTASN1BITSTRING structure. */
1011	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1BitString_Vtable;
1012
1013	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1BITSTRING, RTDECL, RTAsn1BitString, Asn1Core);
1014
1015	/**
1016	* Calculates pointer to the first bit.
1017	*
1018	* @returns Byte pointer to the first bit.
1019	* @param a_pBitString The ASN.1 bit string.
1020	*/
1021	#define RTASN1BITSTRING_GET_BIT0_PTR(a_pBitString) ( &(a_pBitString)->Asn1Core.uData.pu8[1] )
1022
1023	/**
1024	* Calculates the size in bytes.
1025	*
1026	* @returns Rounded up size in bytes.
1027	* @param a_pBitString The ASN.1 bit string.
1028	*/
1029	#define RTASN1BITSTRING_GET_BYTE_SIZE(a_pBitString) ( ((a_pBitString)->cBits + 7U) >> 3 )
1030
1031	RTDECL(int) RTAsn1BitString_DecodeAsn1Ex(PRTASN1CURSOR pCursor, uint32_t fFlags, uint32_t cMaxBits, PRTASN1BITSTRING pThis,
1032	const char *pszErrorTag);
1033	RTDECL(uint64_t) RTAsn1BitString_GetAsUInt64(PCRTASN1BITSTRING pThis);
1034
1035	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFBITSTRINGS, RTASN1BITSTRING, RTDECL, RTAsn1SeqOfBitStrings);
1036	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFBITSTRINGS, RTASN1BITSTRING, RTDECL, RTAsn1SetOfBitStrings);
1037
1038
1039	/**
1040	* ASN.1 octet string (IPRT representation).
1041	*/
1042	typedef struct RTASN1OCTETSTRING
1043	{
1044	/** Core ASN.1 encoding details. */
1045	RTASN1CORE Asn1Core;
1046	/** Pointer to user structure encapsulated in this string, if dynamically
1047	* allocated the EncapsulatedAllocation member can be used to track it and
1048	* trigger automatic cleanup on object destruction. If EncapsulatedAllocation
1049	* is zero, any object pointed to will only be deleted. */
1050	PRTASN1CORE pEncapsulated;
1051	/** Allocation tracking structure for pEncapsulated. */
1052	RTASN1ALLOCATION EncapsulatedAllocation;
1053	} RTASN1OCTETSTRING;
1054	/** Pointer to the IPRT representation of an ASN.1 octet string. */
1055	typedef RTASN1OCTETSTRING *PRTASN1OCTETSTRING;
1056	/** Pointer to the const IPRT representation of an ASN.1 octet string. */
1057	typedef RTASN1OCTETSTRING const *PCRTASN1OCTETSTRING;
1058	/** The Vtable for a RTASN1OCTETSTRING structure. */
1059	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1OctetString_Vtable;
1060
1061	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1OCTETSTRING, RTDECL, RTAsn1OctetString, Asn1Core);
1062
1063	RTDECL(int) RTAsn1OctetStringCompare(PCRTASN1OCTETSTRING pLeft, PCRTASN1OCTETSTRING pRight);
1064
1065	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFOCTETSTRINGS, RTASN1OCTETSTRING, RTDECL, RTAsn1SeqOfOctetStrings);
1066	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFOCTETSTRINGS, RTASN1OCTETSTRING, RTDECL, RTAsn1SetOfOctetStrings);
1067
1068
1069	/**
1070	* ASN.1 string (IPRT representation).
1071	* All char string types except 'character string (29)'.
1072	*/
1073	typedef struct RTASN1STRING
1074	{
1075	/** Core ASN.1 encoding details. */
1076	RTASN1CORE Asn1Core;
1077	/** Allocation tracking for pszUtf8. */
1078	RTASN1ALLOCATION Allocation;
1079	/** If conversion to UTF-8 was requested, we cache that here. */
1080	char const *pszUtf8;
1081	/** The length (chars, not code points) of the above UTF-8 string if
1082	* present. */
1083	uint32_t cchUtf8;
1084	} RTASN1STRING;
1085	/** Pointer to the IPRT representation of an ASN.1 string. */
1086	typedef RTASN1STRING *PRTASN1STRING;
1087	/** Pointer to the const IPRT representation of an ASN.1 string. */
1088	typedef RTASN1STRING const *PCRTASN1STRING;
1089	/** The Vtable for a RTASN1STRING structure. */
1090	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1String_Vtable;
1091
1092	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1String, Asn1Core);
1093
1094	/** @name String type predicate macros.
1095	* @{ */
1096	#define RTASN1STRING_IS_NUMERIC(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_NUMERIC_STRING )
1097	#define RTASN1STRING_IS_PRINTABLE(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_PRINTABLE_STRING )
1098	#define RTASN1STRING_IS_T61(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_T61_STRING )
1099	#define RTASN1STRING_IS_VIDEOTEX(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_VIDEOTEX_STRING )
1100	#define RTASN1STRING_IS_VISIBLE(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_VISIBLE_STRING )
1101	#define RTASN1STRING_IS_IA5(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_IA5_STRING )
1102	#define RTASN1STRING_IS_GRAPHIC(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_GRAPHIC_STRING )
1103	#define RTASN1STRING_IS_GENERAL(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_GENERAL_STRING )
1104	/** UTF-8. */
1105	#define RTASN1STRING_IS_UTF8(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_UTF8_STRING )
1106	/** UCS-2. */
1107	#define RTASN1STRING_IS_BMP(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_BMP_STRING )
1108	/** UCS-4. */
1109	#define RTASN1STRING_IS_UNIVERSAL(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_UNIVERSAL_STRING )
1110	/** @} */
1111
1112	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1NumericString, Asn1Core);
1113	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1PrintableString, Asn1Core);
1114	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1T61String, Asn1Core);
1115	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1VideoTexString, Asn1Core);
1116	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1VisibleString, Asn1Core);
1117	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1Ia5String, Asn1Core);
1118	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1GraphicString, Asn1Core);
1119	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1GeneralString, Asn1Core);
1120	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1Utf8String, Asn1Core);
1121	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1BmpString, Asn1Core);
1122	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1UniversalString, Asn1Core);
1123
1124	RTDECL(int) RTAsn1String_InitWithValue(PRTASN1STRING pThis, const char *pszUtf8Value, PCRTASN1ALLOCATORVTABLE pAllocator);
1125	RTDECL(int) RTAsn1String_InitEx(PRTASN1STRING pThis, uint32_t uTag, void const *pvValue, size_t cbValue,
1126	PCRTASN1ALLOCATORVTABLE pAllocator);
1127
1128	/**
1129	* Compares two strings values, extended version.
1130	*
1131	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
1132	* @param pLeft The first string.
1133	* @param pRight The second string.
1134	* @param fTypeToo Set if the string types must match, false if
1135	* not.
1136	*/
1137	RTDECL(int) RTAsn1String_CompareEx(PCRTASN1STRING pLeft, PCRTASN1STRING pRight, bool fTypeToo);
1138
1139	/**
1140	* Compares a ASN.1 string object with an UTF-8 string.
1141	*
1142	* @returns 0 if equal, -1 if @a pThis is smaller, 1 if @a pThis is larger.
1143	* @param pThis The ASN.1 string object.
1144	* @param pszString The UTF-8 string.
1145	* @param cchString The length of @a pszString, or RTSTR_MAX.
1146	*/
1147	RTDECL(int) RTAsn1String_CompareWithString(PCRTASN1STRING pThis, const char *pszString, size_t cchString);
1148
1149	/**
1150	* Queries the UTF-8 length of an ASN.1 string object.
1151	*
1152	* This differs from RTAsn1String_QueryUtf8 in that it won't need to allocate
1153	* memory for the converted string, but just calculates the length.
1154	*
1155	* @returns IPRT status code.
1156	* @param pThis The ASN.1 string object.
1157	* @param pcch Where to return the string length.
1158	*/
1159	RTDECL(int) RTAsn1String_QueryUtf8Len(PCRTASN1STRING pThis, size_t *pcch);
1160
1161	/**
1162	* Queries the UTF-8 string for an ASN.1 string object.
1163	*
1164	* This may fail as it may require memory to be allocated for storing the
1165	* string.
1166	*
1167	* @returns IPRT status code.
1168	* @param pString The ASN.1 string object. This is a const
1169	* parameter for making life easier on the caller,
1170	* however be aware that the object may be modified
1171	* by this call!
1172	* @param ppsz Where to return the pointer to the UTF-8 string.
1173	* Optional.
1174	* @param pcch Where to return the length (in 8-bit chars) to
1175	* of the UTF-8 string. Optional.
1176	*/
1177	RTDECL(int) RTAsn1String_QueryUtf8(PCRTASN1STRING pString, const char *ppsz, size_t pcch);
1178	RTDECL(int) RTAsn1String_RecodeAsUtf8(PRTASN1STRING pThis, PCRTASN1ALLOCATORVTABLE pAllocator);
1179
1180	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFSTRINGS, RTASN1STRING, RTDECL, RTAsn1SeqOfStrings);
1181	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFSTRINGS, RTASN1STRING, RTDECL, RTAsn1SetOfStrings);
1182
1183
1184
1185	/**
1186	* ASN.1 generic context specific tag (IPRT representation).
1187	*
1188	* Normally used to tag something that's optional, version specific or such.
1189	*
1190	* For the purpose of documenting the format with typedefs as well as possibly
1191	* making it a little more type safe, there's a set of typedefs for the most
1192	* commonly used tag values defined. These typedefs have are identical to
1193	* RTASN1CONTEXTTAG, except from the C++ type system of view.
1194	* tag values. These
1195	*/
1196	typedef struct RTASN1CONTEXTTAG
1197	{
1198	/** Core ASN.1 encoding details. */
1199	RTASN1CORE Asn1Core;
1200	} RTASN1CONTEXTTAG;
1201	/** Pointer to an ASN.1 context tag (IPRT thing). */
1202	typedef RTASN1CONTEXTTAG *PRTASN1CONTEXTTAG;
1203	/** Pointer to a const ASN.1 context tag (IPRT thing). */
1204	typedef RTASN1CONTEXTTAG const *PCRTASN1CONTEXTTAG;
1205
1206	RTDECL(int) RTAsn1ContextTagN_Init(PRTASN1CONTEXTTAG pThis, uint32_t uTag);
1207	RTDECL(int) RTAsn1ContextTagN_Clone(PRTASN1CONTEXTTAG pThis, PCRTASN1CONTEXTTAG pSrc, uint32_t uTag);
1208
1209
1210	/** @internal */
1211	#define RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(a_uTag) \
1212	typedef struct RT_CONCAT(RTASN1CONTEXTTAG,a_uTag) { RTASN1CORE Asn1Core; } RT_CONCAT(RTASN1CONTEXTTAG,a_uTag); \
1213	typedef RT_CONCAT(RTASN1CONTEXTTAG,a_uTag) *RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag); \
1214	DECLINLINE(int) RT_CONCAT3(RTAsn1ContextTag,a_uTag,_Init)(RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag) pThis, \
1215	PCRTASN1ALLOCATORVTABLE pAllocator) \
1216	{ return RTAsn1ContextTagN_Init((PRTASN1CONTEXTTAG)pThis, a_uTag); } \
1217	DECLINLINE(int) RT_CONCAT3(RTAsn1ContextTag,a_uTag,_Clone)(RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag) pThis, \
1218	RT_CONCAT(RTASN1CONTEXTTAG,a_uTag) const *pSrc) \
1219	{ return RTAsn1ContextTagN_Clone((PRTASN1CONTEXTTAG)pThis, (PCRTASN1CONTEXTTAG)pSrc, a_uTag); } \
1220	typedef RT_CONCAT(RTASN1CONTEXTTAG,a_uTag) const *RT_CONCAT(PCRTASN1CONTEXTTAG,a_uTag)
1221	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(0);
1222	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(1);
1223	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(2);
1224	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(3);
1225	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(4);
1226	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(5);
1227	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(6);
1228	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(7);
1229	#undef RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE
1230
1231	/** Helper for comparing optional context tags.
1232	* This will return if both are not present or if their precense differs.
1233	* @internal */
1234	#define RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, a_uTag) \
1235	do { \
1236	/* type checks */ \
1237	RT_CONCAT(PCRTASN1CONTEXTTAG,a_uTag) const pMyLeftInternal = (a_pLeft); \
1238	RT_CONCAT(PCRTASN1CONTEXTTAG,a_uTag) const pMyRightInternal = (a_pRight); \
1239	(a_iDiff) = (int)RTASN1CORE_IS_PRESENT(&pMyLeftInternal->Asn1Core) \
1240	- (int)RTASN1CORE_IS_PRESENT(&pMyRightInternal->Asn1Core); \
1241	if ((a_iDiff) \|\| !RTASN1CORE_IS_PRESENT(&pMyLeftInternal->Asn1Core)) return iDiff; \
1242	} while (0)
1243
1244	/** Helpers for comparing optional context tags.
1245	* This will return if both are not present or if their precense differs.
1246	* @{ */
1247	#define RTASN1CONTEXTTAG0_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 0)
1248	#define RTASN1CONTEXTTAG1_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 1)
1249	#define RTASN1CONTEXTTAG2_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 2)
1250	#define RTASN1CONTEXTTAG3_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 3)
1251	#define RTASN1CONTEXTTAG4_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 4)
1252	#define RTASN1CONTEXTTAG5_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 5)
1253	#define RTASN1CONTEXTTAG6_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 6)
1254	#define RTASN1CONTEXTTAG7_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 7)
1255	/** @} */
1256
1257
1258	/**
1259	* Type information for dynamically bits (see RTASN1DYNTYPE).
1260	*/
1261	typedef enum RTASN1TYPE
1262	{
1263	/** Not present. */
1264	RTASN1TYPE_NOT_PRESENT = 0,
1265	/** Generic ASN.1 for unknown tag/class. */
1266	RTASN1TYPE_CORE,
1267	/** ASN.1 NULL. */
1268	RTASN1TYPE_NULL,
1269	/** ASN.1 integer. */
1270	RTASN1TYPE_INTEGER,
1271	/** ASN.1 boolean. */
1272	RTASN1TYPE_BOOLEAN,
1273	/** ASN.1 character string. */
1274	RTASN1TYPE_STRING,
1275	/** ASN.1 octet string. */
1276	RTASN1TYPE_OCTET_STRING,
1277	/** ASN.1 bite string. */
1278	RTASN1TYPE_BIT_STRING,
1279	/** ASN.1 UTC or Generalize time. */
1280	RTASN1TYPE_TIME,
1281	#if 0
1282	/** ASN.1 sequence core. */
1283	RTASN1TYPE_SEQUENCE_CORE,
1284	/** ASN.1 set core. */
1285	RTASN1TYPE_SET_CORE,
1286	#endif
1287	/** ASN.1 object identifier. */
1288	RTASN1TYPE_OBJID,
1289	/** End of valid types. */
1290	RTASN1TYPE_END,
1291	/** Type size hack. */
1292	RTASN1TYPE_32BIT_HACK = 0x7fffffff
1293	} RTASN1TYPE;
1294
1295
1296	/**
1297	* ASN.1 dynamic type record.
1298	*/
1299	typedef struct RTASN1DYNTYPE
1300	{
1301	/** Alternative interpretation provided by a user.
1302	* Before destroying this object, the user must explicitly free this and set
1303	* it to NULL, otherwise there will be memory leaks. */
1304	PRTASN1CORE pUser;
1305	/** The type of data we've got here. */
1306	RTASN1TYPE enmType;
1307	/** Union with data of the type dictated by enmType. */
1308	union
1309	{
1310	/** RTASN1TYPE_CORE. */
1311	RTASN1CORE Core;
1312	/** RTASN1TYPE_NULL. */
1313	RTASN1NULL Asn1Null;
1314	/** RTASN1TYPE_INTEGER. */
1315	RTASN1INTEGER Integer;
1316	/** RTASN1TYPE_BOOLEAN. */
1317	RTASN1BOOLEAN Boolean;
1318	/** RTASN1TYPE_STRING. */
1319	RTASN1STRING String;
1320	/** RTASN1TYPE_OCTET_STRING. */
1321	RTASN1OCTETSTRING OctetString;
1322	/** RTASN1TYPE_BIT_STRING. */
1323	RTASN1BITSTRING BitString;
1324	/** RTASN1TYPE_TIME. */
1325	RTASN1TIME Time;
1326	#if 0
1327	/** RTASN1TYPE_SEQUENCE_CORE. */
1328	RTASN1SEQUENCECORE SeqCore;
1329	/** RTASN1TYPE_SET_CORE. */
1330	RTASN1SETCORE SetCore;
1331	#endif
1332	/** RTASN1TYPE_OBJID. */
1333	RTASN1OBJID ObjId;
1334	} u;
1335	} RTASN1DYNTYPE;
1336	/** Pointer to an ASN.1 dynamic type record. */
1337	typedef RTASN1DYNTYPE *PRTASN1DYNTYPE;
1338	/** Pointer to a const ASN.1 dynamic type record. */
1339	typedef RTASN1DYNTYPE const *PCRTASN1DYNTYPE;
1340	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1DYNTYPE, RTDECL, RTAsn1DynType, u.Core);
1341
1342
1343	/** @name Virtual Method Table Based API
1344	* @{ */
1345	/**
1346	* Calls the destructor of the ASN.1 object.
1347	*
1348	* @param pAsn1Core The IPRT representation of an ASN.1 object.
1349	*/
1350	RTDECL(void) RTAsn1VtDelete(PRTASN1CORE pThisCore);
1351
1352	/**
1353	* Deep enumeration of all descendants.
1354	*
1355	* @returns IPRT status code, any non VINF_SUCCESS value stems from pfnCallback.
1356	* @param pThisCore Pointer to the ASN.1 core to enumerate members of.
1357	* @param pfnCallback The callback.
1358	* @param uDepth The depth of this object. Children are at +1.
1359	* @param pvUser Callback user argument.
1360	* @param fDepthFirst When set, recurse into child objects before calling
1361	* pfnCallback on then. When clear, the child object
1362	* is first
1363	*/
1364	RTDECL(int) RTAsn1VtDeepEnum(PRTASN1CORE pThisCore, bool fDepthFirst, uint32_t uDepth,
1365	PFNRTASN1ENUMCALLBACK pfnCallback, void *pvUser);
1366
1367	/**
1368	* Clones @a pSrcCore onto @a pThisCore.
1369	*
1370	* The caller must be sure that @a pSrcCore and @a pThisCore are of the same
1371	* types.
1372	*
1373	* @returns IPRT status code.
1374	* @param pThisCore Pointer to the ASN.1 core to clone onto. This shall
1375	* be uninitialized.
1376	* @param pSrcCore Pointer to the ASN.1 core to clone.
1377	* @param pAllocator The allocator to use.
1378	*/
1379	RTDECL(int) RTAsn1VtClone(PRTASN1CORE pThisCore, PRTASN1CORE pSrcCore, PCRTASN1ALLOCATORVTABLE pAllocator);
1380
1381	/**
1382	* Compares two objects.
1383	*
1384	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
1385	* @param pLeftCore Pointer to the ASN.1 core of the left side object.
1386	* @param pRightCore Pointer to the ASN.1 core of the right side object.
1387	*/
1388	RTDECL(int) RTAsn1VtCompare(PCRTASN1CORE pLeftCore, PCRTASN1CORE pRightCore);
1389
1390	/**
1391	* Check sanity.
1392	*
1393	* A primary criteria is that the object is present and initialized.
1394	*
1395	* @returns IPRT status code.
1396	* @param pThisCore Pointer to the ASN.1 core of the object to check out.
1397	* @param fFlags See RTASN1_CHECK_SANITY_F_XXX.
1398	* @param pszErrInfo Where to return additional error details. Optional.
1399	* @param pszErrorTag Tag for the additional error details.
1400	*/
1401	RTDECL(int) RTAsn1VtCheckSanity(PCRTASN1CORE pThisCore, uint32_t fFlags,
1402	PRTERRINFO pErrInfo, const char *pszErrorTag);
1403	/** @} */
1404
1405
1406	/** @defgroup rp_asn1_encode RTAsn1Encode - ASN.1 Encoding
1407	* @{ */
1408
1409	/** @name RTASN1ENCODE_F_XXX
1410	* @{ */
1411	/** Use distinguished encoding rules (DER) to encode the object. */
1412	#define RTASN1ENCODE_F_DER UINT32_C(0x00000001)
1413	/** Use base encoding rules (BER) to encode the object.
1414	* This is currently the same as DER for practical reasons. */
1415	#define RTASN1ENCODE_F_BER RTASN1ENCODE_F_DER
1416	/** Mask of valid encoding rules. */
1417	#define RTASN1ENCODE_F_RULE_MASK UINT32_C(0x00000007)
1418	/** @} */
1419
1420
1421	/**
1422	* Recalculates cbHdr of and ASN.1 object.
1423	*
1424	* @returns IPRT status code.
1425	* @retval VINF_ASN1_NOT_ENCODED if the header size is zero (default value,
1426	* whatever).
1427	* @param pAsn1Core The object in question.
1428	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1429	* flags. Must include the encoding type.
1430	* @param pErrInfo Extended error info. Optional.
1431	*/
1432	RTDECL(int) RTAsn1EncodeRecalcHdrSize(PRTASN1CORE pAsn1Core, uint32_t fFlags, PRTERRINFO pErrInfo);
1433
1434	/**
1435	* Prepares the ASN.1 structure for encoding.
1436	*
1437	* The preparations is mainly calculating accurate object size, but may also
1438	* involve operations like recoding internal UTF-8 strings to the actual ASN.1
1439	* format and other things that may require memory to allocated/reallocated.
1440	*
1441	* @returns IPRT status code
1442	* @param pRoot The root of the ASN.1 object tree to encode.
1443	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1444	* flags. Must include the encoding type.
1445	* @param pcbEncoded Where to return the encoded size. Optional.
1446	* @param pErrInfo Where to store extended error information.
1447	* Optional.
1448	*/
1449	RTDECL(int) RTAsn1EncodePrepare(PRTASN1CORE pRoot, uint32_t fFlags, uint32_t *pcbEncoded, PRTERRINFO pErrInfo);
1450
1451	/**
1452	* Encodes and writes the header of an ASN.1 object.
1453	*
1454	* @returns IPRT status code.
1455	* @retval VINF_ASN1_NOT_ENCODED if nothing was written (default value,
1456	* whatever).
1457	* @param pAsn1Core The object in question.
1458	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1459	* flags. Must include the encoding type.
1460	* @param pfnWriter The output writer callback.
1461	* @param pvUser The user argument to pass to @a pfnWriter.
1462	* @param pErrInfo Where to store extended error information.
1463	* Optional.
1464	*/
1465	RTDECL(int) RTAsnEncodeWriteHeader(PCRTASN1CORE pAsn1Core, uint32_t fFlags, FNRTASN1ENCODEWRITER pfnWriter, void *pvUser,
1466	PRTERRINFO pErrInfo);
1467
1468	/**
1469	* Prepares the ASN.1 structure for encoding.
1470	*
1471	* The preparations is mainly calculating accurate object size, but may also
1472	* involve operations like recoding internal UTF-8 strings to the actual ASN.1
1473	* format and other things that may require memory to allocated/reallocated.
1474	*
1475	* @returns IPRT status code
1476	* @param pRoot The root of the ASN.1 object tree to encode.
1477	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1478	* flags. Must include the encoding type.
1479	* @param pfnWriter The output writer callback.
1480	* @param pvUser The user argument to pass to @a pfnWriter.
1481	* @param pErrInfo Where to store extended error information.
1482	* Optional.
1483	*/
1484	RTDECL(int) RTAsn1EncodeWrite(PCRTASN1CORE pRoot, uint32_t fFlags, FNRTASN1ENCODEWRITER pfnWriter, void *pvUser,
1485	PRTERRINFO pErrInfo);
1486
1487	/** @} */
1488
1489
1490
1491	/** @defgroup rp_asn1_cursor RTAsn1Cursor - BER, DER, and CER cursor
1492	* @{ */
1493
1494	/**
1495	* ASN.1 decoder byte cursor.
1496	*/
1497	typedef struct RTASN1CURSOR
1498	{
1499	/** Pointer to the current (next) byte. */
1500	uint8_t const *pbCur;
1501	/** Number of bytes left to decode. */
1502	uint32_t cbLeft;
1503	/** RTASN1CURSOR_FLAGS_XXX. */
1504	uint8_t fFlags;
1505	/** The cursor depth. */
1506	uint8_t cDepth;
1507	/** Two bytes reserved for future tricks. */
1508	uint8_t abReserved[2];
1509	/** Pointer to the primary cursor. */
1510	struct RTASN1CURSORPRIMARY *pPrimary;
1511	/** Pointer to the parent cursor. */
1512	struct RTASN1CURSOR *pUp;
1513	/** The error tag for this cursor level. */
1514	const char *pszErrorTag;
1515	} RTASN1CURSOR;
1516
1517	/** @name RTASN1CURSOR_FLAGS_XXX - Cursor flags.
1518	* @{ */
1519	/** Enforce DER rules. */
1520	#define RTASN1CURSOR_FLAGS_DER RT_BIT(1)
1521	/** Enforce CER rules. */
1522	#define RTASN1CURSOR_FLAGS_CER RT_BIT(2)
1523	/** @} */
1524
1525
1526	typedef struct RTASN1CURSORPRIMARY
1527	{
1528	/** The normal cursor bits. */
1529	RTASN1CURSOR Cursor;
1530	/** For error reporting. */
1531	PRTERRINFO pErrInfo;
1532	/** The allocator virtual method table. */
1533	PCRTASN1ALLOCATORVTABLE pAllocator;
1534	} RTASN1CURSORPRIMARY;
1535	typedef RTASN1CURSORPRIMARY *PRTASN1CURSORPRIMARY;
1536
1537
1538	/**
1539	* Initializes a primary cursor.
1540	*
1541	* The primary cursor is special in that it stores information shared with the
1542	* sub-cursors created by methods like RTAsn1CursorGetContextTagNCursor and
1543	* RTAsn1CursorGetSequenceCursor. Even if just sharing a few items at present,
1544	* it still important to save every possible byte since stack space is scarce in
1545	* some of the execution environments.
1546	*
1547	* @returns Pointer to pCursor->Cursor.
1548	* @param pPrimaryCursor The primary cursor structure to initialize.
1549	* @param pvFirst The first byte to decode.
1550	* @param cb The number of bytes to decode.
1551	* @param pErrInfo Where to store error information.
1552	* @param pAllocator The allocator to use.
1553	* @param fFlags RTASN1CURSOR_FLAGS_XXX.
1554	* @param pszErrorTag The primary error tag.
1555	*/
1556	RTDECL(PRTASN1CURSOR) RTAsn1CursorInitPrimary(PRTASN1CURSORPRIMARY pPrimaryCursor, void const *pvFirst, uint32_t cb,
1557	PRTERRINFO pErrInfo, PCRTASN1ALLOCATORVTABLE pAllocator, uint32_t fFlags,
1558	const char *pszErrorTag);
1559
1560
1561	/**
1562	* Initialize a sub-cursor for traversing the content of an ASN.1 object.
1563	*
1564	* @returns IPRT status code.
1565	* @param pParent The parent cursor.
1566	* @param pAsn1Core The ASN.1 object which content we should
1567	* traverse with the sub-cursor.
1568	* @param pChild The sub-cursor to initialize.
1569	* @param pszErrorTag The error tag of the sub-cursor.
1570	*/
1571	RTDECL(int) RTAsn1CursorInitSubFromCore(PRTASN1CURSOR pParent, PRTASN1CORE pAsn1Core,
1572	PRTASN1CURSOR pChild, const char *pszErrorTag);
1573
1574	/**
1575	* Initalizes the an allocation structure prior to making an allocation.
1576	*
1577	* To try unify and optimize memory managment for decoding and in-memory
1578	* construction of ASN.1 objects, each allocation has an allocation structure
1579	* associated with it. This stores the allocator and keep statistics for
1580	* optimizing array allocations.
1581	*
1582	* @returns Pointer to the allocator info (for call in alloc parameter).
1583	* @param pCursor The cursor.
1584	* @param pAllocator The allocation structure to initialize.
1585	*/
1586	RTDECL(PRTASN1ALLOCATION) RTAsn1CursorInitAllocation(PRTASN1CURSOR pCursor, PRTASN1ALLOCATION pAllocation);
1587
1588
1589	/**
1590	* Wrapper around RTErrInfoSetV.
1591	*
1592	* @returns @a rc
1593	* @param pCursor The cursor.
1594	* @param rc The return code to return.
1595	* @param pszMsg Message format string.
1596	* @param ... Format arguments.
1597	*/
1598	RTDECL(int) RTAsn1CursorSetInfo(PRTASN1CURSOR pCursor, int rc, const char *pszMsg, ...);
1599
1600	/**
1601	* Wrapper around RTErrInfoSetV.
1602	*
1603	* @returns @a rc
1604	* @param pCursor The cursor.
1605	* @param rc The return code to return.
1606	* @param pszMsg Message format string.
1607	* @param va Format arguments.
1608	*/
1609	RTDECL(int) RTAsn1CursorSetInfoV(PRTASN1CURSOR pCursor, int rc, const char *pszMsg, va_list va);
1610
1611	/**
1612	* Checks that we've reached the end of the data for the cursor.
1613	*
1614	* @returns IPRT status code.
1615	* @param pCursor The cursor we're decoding from.
1616	*/
1617	RTDECL(int) RTAsn1CursorCheckEnd(PRTASN1CURSOR pCursor);
1618
1619
1620	/**
1621	* Skips a given number of bytes.
1622	*
1623	* @returns @a pCursor
1624	* @param pCursor The cursor.
1625	* @param cb The number of bytes to skip.
1626	* @internal
1627	*/
1628	DECLINLINE(PRTASN1CURSOR) RTAsn1CursorSkip(PRTASN1CURSOR pCursor, uint32_t cb)
1629	{
1630	if (cb <= pCursor->cbLeft)
1631	{
1632	pCursor->cbLeft -= cb;
1633	pCursor->pbCur += cb;
1634	}
1635	else
1636	{
1637	pCursor->pbCur += pCursor->cbLeft;
1638	pCursor->cbLeft = 0;
1639	}
1640
1641	return pCursor;
1642	}
1643
1644	/**
1645	* Low-level function for reading an ASN.1 header.
1646	*
1647	* @returns IPRT status code.
1648	* @param pCursor The cursor we're decoding from.
1649	* @param pAsn1Core The output object core.
1650	* @param pszErrorTag Error tag.
1651	* @internal
1652	*/
1653	RTDECL(int) RTAsn1CursorReadHdr(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core, const char *pszErrorTag);
1654
1655	/**
1656	* Common helper for simple tag matching.
1657	*
1658	* @returns IPRT status code.
1659	* @param pCursor The cursor (for error reporting).
1660	* @param pAsn1Core The ASN.1 core structure.
1661	* @param uTag The expected tag.
1662	* @param fClass The expected class.
1663	* @param fString Set if it's a string type that shall follow
1664	* special CER and DER rules wrt to constructed and
1665	* primitive encoding.
1666	* @param fFlags The RTASN1CURSOR_GET_F_XXX flags.
1667	* @param pszErrorTag The error tag.
1668	* @param pszWhat The type/whatever name.
1669	*/
1670	RTDECL(int) RTAsn1CursorMatchTagClassFlagsEx(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core, uint32_t uTag, uint32_t fClass,
1671	bool fString, uint32_t fFlags, const char pszErrorTag, const char pszWhat);
1672
1673	/**
1674	* Common helper for simple tag matching.
1675	*
1676	* @returns IPRT status code.
1677	* @param pCursor The cursor (for error reporting).
1678	* @param pAsn1Core The ASN.1 core structure.
1679	* @param uTag The expected tag.
1680	* @param fClass The expected class.
1681	* @param fFlags The RTASN1CURSOR_GET_F_XXX flags.
1682	* @param pszErrorTag The error tag.
1683	* @param pszWhat The type/whatever name.
1684	* @internal
1685	*/
1686	DECLINLINE(int) RTAsn1CursorMatchTagClassFlags(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core, uint32_t uTag, uint32_t fClass,
1687	uint32_t fFlags, const char pszErrorTag, const char pszWhat)
1688	{
1689	if (pAsn1Core->uTag == uTag && pAsn1Core->fClass == fClass)
1690	return VINF_SUCCESS;
1691	return RTAsn1CursorMatchTagClassFlagsEx(pCursor, pAsn1Core, uTag, fClass, false /fString/, fFlags, pszErrorTag, pszWhat);
1692	}
1693
1694
1695	/**
1696	* Common helper for simple tag matching for strings.
1697	*
1698	* Check string encoding considerations.
1699	*
1700	* @returns IPRT status code.
1701	* @param pCursor The cursor (for error reporting).
1702	* @param pAsn1Core The ASN.1 core structure.
1703	* @param uTag The expected tag.
1704	* @param fClass The expected class.
1705	* @param fFlags The RTASN1CURSOR_GET_F_XXX flags.
1706	* @param pszErrorTag The error tag.
1707	* @param pszWhat The type/whatever name.
1708	* @internal
1709	*/
1710	DECLINLINE(int) RTAsn1CursorMatchTagClassFlagsString(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core, uint32_t uTag, uint32_t fClass,
1711	uint32_t fFlags, const char pszErrorTag, const char pszWhat)
1712	{
1713	if (pAsn1Core->uTag == uTag && pAsn1Core->fClass == fClass)
1714	return VINF_SUCCESS;
1715	return RTAsn1CursorMatchTagClassFlagsEx(pCursor, pAsn1Core, uTag, fClass, true /fString/, fFlags, pszErrorTag, pszWhat);
1716	}
1717
1718
1719
1720	/** @name RTASN1CURSOR_GET_F_XXX - Common flags for all the getters.
1721	* @{ */
1722	/** Used for decoding objects with implicit tags assigned to them. This only
1723	* works when calling getters with a unambigious types. */
1724	#define RTASN1CURSOR_GET_F_IMPLICIT RT_BIT_32(0)
1725	/** @} */
1726
1727	/**
1728	* Read ANY object.
1729	*
1730	* @returns IPRT status code.
1731	* @param pCursor The cursor we're decoding from.
1732	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1733	* @param pAsn1Core The output object core.
1734	* @param pszErrorTag Error tag.
1735	*/
1736	RTDECL(int) RTAsn1CursorGetCore(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1CORE pAsn1Core, const char *pszErrorTag);
1737
1738	/**
1739	* Read a NULL object.
1740	*
1741	* @returns IPRT status code.
1742	* @param pCursor The cursor we're decoding from.
1743	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1744	* @param pNull The output NULL object.
1745	* @param pszErrorTag Error tag.
1746	*/
1747	RTDECL(int) RTAsn1CursorGetNull(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1NULL pNull, const char *pszErrorTag);
1748
1749	/**
1750	* Read an INTEGER object.
1751	*
1752	* @returns IPRT status code.
1753	* @param pCursor The cursor we're decoding from.
1754	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1755	* @param pInteger The output integer object.
1756	* @param pszErrorTag Error tag.
1757	*/
1758	RTDECL(int) RTAsn1CursorGetInteger(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1INTEGER pInteger, const char *pszErrorTag);
1759
1760	/**
1761	* Read an BOOLEAN object.
1762	*
1763	* @returns IPRT status code.
1764	* @param pCursor The cursor we're decoding from.
1765	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1766	* @param pBoolean The output boolean object.
1767	* @param pszErrorTag Error tag.
1768	*/
1769	RTDECL(int) RTAsn1CursorGetBoolean(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1BOOLEAN pBoolean, const char *pszErrorTag);
1770
1771	/**
1772	* Retrives an object identifier (aka ObjId or OID) item from the ASN.1 stream.
1773	*
1774	* @returns IPRT status code.
1775	* @param pCursor The cursor.
1776	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1777	* @param pObjId The output ODI object.
1778	* @param pszErrorTag Error tag.
1779	*/
1780	RTDECL(int) RTAsn1CursorGetObjId(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1OBJID pObjId, const char *pszErrorTag);
1781
1782	/**
1783	* Retrives and verifies an object identifier.
1784	*
1785	* @returns IPRT status code.
1786	* @param pCursor The cursor.
1787	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1788	* @param pObjId Where to return the parsed object ID, optional.
1789	* @param pszExpectedObjId The expected object identifier (dotted).
1790	* @param pszErrorTag Error tag.
1791	*/
1792	RTDECL(int) RTAsn1CursorGetAndCheckObjId(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1OBJID pObjId,
1793	const char pszExpectedObjId, const char pszErrorTag);
1794
1795	/**
1796	* Read an UTC TIME or GENERALIZED TIME object.
1797	*
1798	* @returns IPRT status code.
1799	* @param pCursor The cursor we're decoding from.
1800	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1801	* @param pTime The output time object.
1802	* @param pszErrorTag Error tag.
1803	*/
1804	RTDECL(int) RTAsn1CursorGetTime(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1TIME pTime, const char *pszErrorTag);
1805
1806	/**
1807	* Read an BIT STRING object (skips past the content).
1808	*
1809	* @returns IPRT status ocde.
1810	* @param pCursor The cursor.
1811	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1812	* @param pBitString The output bit string object.
1813	* @param pszErrorTag Error tag.
1814	*/
1815	RTDECL(int) RTAsn1CursorGetBitString(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1BITSTRING pBitString,
1816	const char *pszErrorTag);
1817
1818	/**
1819	* Read an BIT STRING object (skips past the content), extended version with
1820	* cMaxBits.
1821	*
1822	* @returns IPRT status ocde.
1823	* @param pCursor The cursor.
1824	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1825	* @param cMaxBits The max length of the bit string in bits. Pass
1826	* UINT32_MAX if variable size.
1827	* @param pBitString The output bit string object.
1828	* @param pszErrorTag Error tag.
1829	*/
1830	RTDECL(int) RTAsn1CursorGetBitStringEx(PRTASN1CURSOR pCursor, uint32_t fFlags, uint32_t cMaxBits, PRTASN1BITSTRING pBitString,
1831	const char *pszErrorTag);
1832
1833	/**
1834	* Read an OCTET STRING object (skips past the content).
1835	*
1836	* @returns IPRT status ocde.
1837	* @param pCursor The cursor.
1838	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1839	* @param pOctetString The output octet string object.
1840	* @param pszErrorTag Error tag.
1841	*/
1842	RTDECL(int) RTAsn1CursorGetOctetString(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1OCTETSTRING pOctetString,
1843	const char *pszErrorTag);
1844
1845	/**
1846	* Read any kind of string object, except 'character string (29)'.
1847	*
1848	* @returns IPRT status code.
1849	* @param pCursor The cursor we're decoding from.
1850	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1851	* @param pString The output boolean object.
1852	* @param pszErrorTag Error tag.
1853	*/
1854	RTDECL(int) RTAsn1CursorGetString(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1STRING pString, const char *pszErrorTag);
1855
1856	/**
1857	* Read a IA5 STRING object.
1858	*
1859	* @returns IPRT status code.
1860	* @param pCursor The cursor we're decoding from.
1861	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1862	* @param pString The output boolean object.
1863	* @param pszErrorTag Error tag.
1864	*/
1865	RTDECL(int) RTAsn1CursorGetIa5String(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1STRING pString, const char *pszErrorTag);
1866
1867	/**
1868	* Read a UTF8 STRING object.
1869	*
1870	* @returns IPRT status code.
1871	* @param pCursor The cursor we're decoding from.
1872	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1873	* @param pString The output boolean object.
1874	* @param pszErrorTag Error tag.
1875	*/
1876	RTDECL(int) RTAsn1CursorGetUtf8String(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1STRING pString, const char *pszErrorTag);
1877
1878	/**
1879	* Read a BMP STRING (UCS-2) object.
1880	*
1881	* @returns IPRT status code.
1882	* @param pCursor The cursor we're decoding from.
1883	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1884	* @param pString The output boolean object.
1885	* @param pszErrorTag Error tag.
1886	*/
1887	RTDECL(int) RTAsn1CursorGetBmpString(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1STRING pString, const char *pszErrorTag);
1888
1889	/**
1890	* Read a SEQUENCE object and create a cursor for its content.
1891	*
1892	* @returns IPRT status code.
1893	* @param pCursor The cursor we're decoding from.
1894	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1895	* @param pSeqCore The output sequence core object.
1896	* @param pSeqCursor The output cursor for the sequence content.
1897	* @param pszErrorTag Error tag, this will be associated with the
1898	* returned cursor.
1899	*/
1900	RTDECL(int) RTAsn1CursorGetSequenceCursor(PRTASN1CURSOR pCursor, uint32_t fFlags,
1901	PRTASN1SEQUENCECORE pSeqCore, PRTASN1CURSOR pSeqCursor, const char *pszErrorTag);
1902
1903	/**
1904	* Read a SET object and create a cursor for its content.
1905	*
1906	* @returns IPRT status code.
1907	* @param pCursor The cursor we're decoding from.
1908	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1909	* @param pSetCore The output set core object.
1910	* @param pSetCursor The output cursor for the set content.
1911	* @param pszErrorTag Error tag, this will be associated with the
1912	* returned cursor.
1913	*/
1914	RTDECL(int) RTAsn1CursorGetSetCursor(PRTASN1CURSOR pCursor, uint32_t fFlags,
1915	PRTASN1SETCORE pSetCore, PRTASN1CURSOR pSetCursor, const char *pszErrorTag);
1916
1917	/**
1918	* Read a given constructed context tag and create a cursor for its content.
1919	*
1920	* @returns IPRT status code.
1921	* @param pCursor The cursor we're decoding from.
1922	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1923	* @param pCtxTagCore The output context tag object.
1924	* @param pCtxTagCursor The output cursor for the context tag content.
1925	* @param pszErrorTag Error tag, this will be associated with the
1926	* returned cursor.
1927	*
1928	* @remarks There are specialized version of this function for each of the
1929	* numbered context tag structures, like for RTASN1CONTEXTTAG0 there is
1930	* RTAsn1CursorGetContextTag0Cursor.
1931	*/
1932	RTDECL(int) RTAsn1CursorGetContextTagNCursor(PRTASN1CURSOR pCursor, uint32_t fFlags, uint32_t uExpectedTag,
1933	PRTASN1CONTEXTTAG pCtxTag, PRTASN1CURSOR pCtxTagCursor, const char *pszErrorTag);
1934
1935	/**
1936	* Read a dynamic ASN.1 type.
1937	*
1938	* @returns IPRT status code.
1939	* @param pCursor The cursor we're decoding from.
1940	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1941	* @param pDynType The output context tag object.
1942	* @param pszErrorTag Error tag.
1943	*/
1944	RTDECL(int) RTAsn1CursorGetDynType(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1DYNTYPE pDynType, const char *pszErrorTag);
1945
1946	/**
1947	* Peeks at the next ASN.1 object.
1948	*
1949	* @returns IPRT status code.
1950	* @param pCursor The cursore we're decoding from.
1951	* @param pAsn1Core Where to store the output of the peek.
1952	*/
1953	RTDECL(int) RTAsn1CursorPeek(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core);
1954
1955	/**
1956	* Checks if the next ASN.1 object matches the given tag and class/flags.
1957	*
1958	* @returns @c true on match, @c false on mismatch.
1959	* @param pCursor The cursore we're decoding from.
1960	* @param uTag The tag number to match against.
1961	* @param fClass The tag class and flags to match against.
1962	*/
1963	RTDECL(bool) RTAsn1CursorIsNextEx(PRTASN1CURSOR pCursor, uint32_t uTag, uint8_t fClass);
1964
1965
1966
1967	/** @internal */
1968	#define RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(a_uTag) \
1969	DECLINLINE(int) RT_CONCAT3(RTAsn1CursorGetContextTag,a_uTag,Cursor)(PRTASN1CURSOR pCursor, uint32_t fFlags, \
1970	RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag) pCtxTag, \
1971	PRTASN1CURSOR pCtxTagCursor, const char *pszErrorTag) \
1972	{ /* Constructed is automatically implied if you need a cursor to it. */ \
1973	return RTAsn1CursorGetContextTagNCursor(pCursor, fFlags, a_uTag, (PRTASN1CONTEXTTAG)pCtxTag, pCtxTagCursor, pszErrorTag); \
1974	} \
1975	DECLINLINE(int) RT_CONCAT3(RTAsn1ContextTag,a_uTag,InitDefault)(RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag) pCtxTag) \
1976	{ /* Constructed is automatically implied if you need to init it with a default value. */ \
1977	return RTAsn1Core_InitDefault(&pCtxTag->Asn1Core, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_CONSTRUCTED); \
1978	} \
1979	DECLINLINE(int) RT_CONCAT3(RTAsn1CursorIsConstructedContextTag,a_uTag,Next)(PRTASN1CURSOR pCursor) \
1980	{ \
1981	return RTAsn1CursorIsNextEx(pCursor, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_CONSTRUCTED); \
1982	} \
1983	DECLINLINE(int) RT_CONCAT3(RTAsn1CursorIsPrimitiveContextTag,a_uTag,Next)(PRTASN1CURSOR pCursor) \
1984	{ \
1985	return RTAsn1CursorIsNextEx(pCursor, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_PRIMITIVE); \
1986	} \
1987	DECLINLINE(int) RT_CONCAT3(RTAsn1CursorIsAnyContextTag,a_uTag,Next)(PRTASN1CURSOR pCursor) \
1988	{ \
1989	return RTAsn1CursorIsNextEx(pCursor, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_CONSTRUCTED) \
1990	\|\| RTAsn1CursorIsNextEx(pCursor, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_PRIMITIVE);\
1991	} \
1992
1993	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(0)
1994	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(1)
1995	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(2)
1996	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(3)
1997	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(4)
1998	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(5)
1999	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(6)
2000	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(7)
2001	#undef RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES
2002
2003
2004	/**
2005	* Checks if the next object is a boolean.
2006	*
2007	* @returns true / false
2008	* @param pCursor The cursore we're decoding from.
2009	* @remarks May produce error info output on mismatch.
2010	*/
2011	DECLINLINE(bool) RTAsn1CursorIsBooleanNext(PRTASN1CURSOR pCursor)
2012	{
2013	return RTAsn1CursorIsNextEx(pCursor, ASN1_TAG_BOOLEAN, ASN1_TAGFLAG_PRIMITIVE \| ASN1_TAGCLASS_UNIVERSAL);
2014	}
2015
2016
2017	/**
2018	* Checks if the next object is a set.
2019	*
2020	* @returns true / false
2021	* @param pCursor The cursore we're decoding from.
2022	* @remarks May produce error info output on mismatch.
2023	*/
2024	DECLINLINE(bool) RTAsn1CursorIsSetNext(PRTASN1CURSOR pCursor)
2025	{
2026	return RTAsn1CursorIsNextEx(pCursor, ASN1_TAG_SET, ASN1_TAGFLAG_CONSTRUCTED \| ASN1_TAGCLASS_UNIVERSAL);
2027	}
2028
2029
2030	/** @} */
2031
2032
2033	/** @name ASN.1 Utility APIs
2034	* @{ */
2035
2036	/**
2037	* Dumps an IPRT representation of a ASN.1 object tree.
2038	*
2039	* @returns IPRT status code.
2040	* @param pAsn1Core The ASN.1 object which members should be dumped.
2041	* @param fFlags RTASN1DUMP_F_XXX.
2042	* @param uLevel The indentation level to start at.
2043	* @param pfnPrintfV The output function.
2044	* @param pvUser Argument to the output function.
2045	*/
2046	RTDECL(int) RTAsn1Dump(PCRTASN1CORE pAsn1Core, uint32_t fFlags, uint32_t uLevel, PFNRTDUMPPRINTFV pfnPrintfV, void *pvUser);
2047
2048	/** @} */
2049
2050	/** @} */
2051
2052	RT_C_DECLS_END
2053
2054	#endif
2055

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source: vbox/trunk/include/iprt/asn1.h@ 55747

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