asn1.h@ 82968

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1	/** @file
2	* IPRT - Abstract Syntax Notation One (ASN.1).
3	*/
4
5	/*
6	* Copyright (C) 2006-2020 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_INCLUDED_asn1_h
27	#define IPRT_INCLUDED_asn1_h
28	#ifndef RT_WITHOUT_PRAGMA_ONCE
29	# pragma once
30	#endif
31
32	#include <iprt/time.h>
33	#include <iprt/stdarg.h>
34	#include <iprt/errcore.h>
35	#include <iprt/formats/asn1.h>
36
37
38	RT_C_DECLS_BEGIN
39
40	/** @defgroup grp_rt_asn1 RTAsn1 - Abstract Syntax Notation One
41	* @ingroup grp_rt
42	* @{
43	*/
44
45
46	/** Pointer to ASN.1 allocation information. */
47	typedef struct RTASN1ALLOCATION *PRTASN1ALLOCATION;
48	/** Pointer to ASN.1 array allocation information. */
49	typedef struct RTASN1ARRAYALLOCATION *PRTASN1ARRAYALLOCATION;
50	/** Pointer to a ASN.1 byte decoder cursor. */
51	typedef struct RTASN1CURSOR *PRTASN1CURSOR;
52
53
54	/**
55	* Sketch of a custom ASN.1 allocator virtual method table.
56	*
57	* Any information required by the allocator should be associated with this
58	* structure, i.e. use this as a kind of parent class. This saves storage in
59	* RTASN1ALLOCATORINFO and possibly reduces the number of parameters by one.
60	*/
61	typedef struct RTASN1ALLOCATORVTABLE
62	{
63	/**
64	* Free a chunk of memory allocated by this allocator.
65	*
66	* @returns IPRT status code.
67	* @param pThis Pointer to the vtable structure.
68	* @param pAllocation Pointer to the allocation info structure.
69	* @param pv Pointer to the memory that shall be freed. Not NULL.
70	*/
71	DECLCALLBACKMEMBER(void, pfnFree)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ALLOCATION pAllocation,
72	void *pv);
73	/**
74	* Allocates a chunk of memory, all initialized to zero.
75	*
76	* @returns IPRT status code.
77	* @param pThis Pointer to the vtable structure.
78	* @param pAllocation Pointer to the allocation info structure.
79	* @param ppv Where to store the pointer on success.
80	* @param cb The minimum number of bytes to allocate. The actual
81	* number of bytes allocated shall be stored in
82	* pInfo->cbAllocated on success.
83	*/
84	DECLCALLBACKMEMBER(int, pfnAlloc)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ALLOCATION pAllocation,
85	void **ppv, size_t cb);
86	/**
87	* Reallocates a memory allocation.
88	*
89	* New memory does not need to be initialized, the caller takes care of that.
90	*
91	* This will not need to deal with free (@a cbNew == 0) or the initial
92	* allocation (@a pvOld == NULL), those calls will be directed to pfnFree and
93	* pfnAlloc respectively.
94	*
95	* @returns IPRT status code.
96	* @param pThis Pointer to the vtable structure.
97	* @param pAllocation Pointer to the allocation info structure.
98	* @param pvOld Pointer to the current allocation. Shall remain
99	* valid on failure, but may be invalid on success.
100	* @param ppvNew Where to store the pointer on success. Shall not be
101	* touched, except on successful returns.
102	* @param cbNew The new minimum allocation size. The actual number
103	* of bytes allocated shall be stored in
104	* pInfo->cbAllocated on success.
105	*/
106	DECLCALLBACKMEMBER(int, pfnRealloc)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ALLOCATION pAllocation,
107	void pvOld, void *ppvNew, size_t cbNew);
108
109	/**
110	* Frees an array allocation (the array an all instances in it).
111	*
112	* @returns IPRT status code.
113	* @param pThis Pointer to the vtable structure.
114	* @param pAllocation Pointer to the allocation info structure.
115	* @param papvArray Pointer to the pointer array to be freed. Not NULL.
116	*/
117	DECLCALLBACKMEMBER(void, pfnFreeArray)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ARRAYALLOCATION pAllocation,
118	void **papvArray);
119	/**
120	* Grows the array to at least @a cMinEntries.
121	*
122	* The entries are initalized with ZEROs.
123	*
124	* @returns IPRT status code.
125	* @param pThis Pointer to the vtable structure.
126	* @param pAllocation Pointer to the allocation info structure.
127	* @param ppapvArray Pointer to the pointer to the array to be grown (or
128	* allocated).
129	* @param cMinEntries The minimum number of entries (array size and
130	* instantiated entries) that must be available
131	* on successful return.
132	*/
133	DECLCALLBACKMEMBER(int, pfnGrowArray)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ARRAYALLOCATION pAllocation,
134	void ***ppapvArray, uint32_t cMinEntries);
135	/**
136	* Shrinks the array (depends on allocator policy).
137	*
138	* If memory isn't freed, the implementation must fill the entries being
139	* shredded with ZEROs so the growth optimizations in RTAsn1MemResizeArray
140	* returns ZEROed entries.
141	*
142	* @returns IPRT status code.
143	* @param pThis Pointer to the vtable structure.
144	* @param pAllocation Pointer to the allocation info structure.
145	* @param ppapvArray Pointer to the pointer to the array to shrunk.
146	* @param cNew The new entry count.
147	* @param cCurrent The new entry count.
148	*/
149	DECLCALLBACKMEMBER(void, pfnShrinkArray)(struct RTASN1ALLOCATORVTABLE const *pThis, PRTASN1ARRAYALLOCATION pAllocation,
150	void ***ppapvArray, uint32_t cNew, uint32_t cCurrent);
151	} RTASN1ALLOCATORVTABLE;
152	/** Pointer to an ASN.1 allocator vtable. */
153	typedef RTASN1ALLOCATORVTABLE *PRTASN1ALLOCATORVTABLE;
154	/** Pointer to a const ASN.1 allocator vtable. */
155	typedef RTASN1ALLOCATORVTABLE const *PCRTASN1ALLOCATORVTABLE;
156
157	/** The default ASN.1 allocator. */
158	extern RTDATADECL(RTASN1ALLOCATORVTABLE const) g_RTAsn1DefaultAllocator;
159
160	/** The Electric Fence ASN.1 allocator. */
161	extern RTDATADECL(RTASN1ALLOCATORVTABLE const) g_RTAsn1EFenceAllocator;
162
163	/** The safer ASN.1 allocator for sensitive data. */
164	extern RTDATADECL(RTASN1ALLOCATORVTABLE const) g_RTAsn1SaferAllocator;
165
166
167	/**
168	* Allocation information.
169	*/
170	typedef struct RTASN1ALLOCATION
171	{
172	/** The number of bytes currently allocated. */
173	uint32_t cbAllocated;
174	/** Number of realloc calls. */
175	uint16_t cReallocs;
176	/** Reserved / padding. */
177	uint16_t uReserved0;
178	/** Allocator vtable, NULL for the default allocator. */
179	PCRTASN1ALLOCATORVTABLE pAllocator;
180	} RTASN1ALLOCATION;
181
182
183	/**
184	* Pointer array allocation information.
185	*
186	* Used by SET OF and SEQUENCE OF structures (typically automatically
187	* generated).
188	*/
189	typedef struct RTASN1ARRAYALLOCATION
190	{
191	/** The size of the array entry. */
192	uint32_t cbEntry;
193	/** The size of the pointer array allocation. */
194	uint32_t cPointersAllocated;
195	/** Number of entry instances allocated. This can be greater than the
196	* official array size. */
197	uint32_t cEntriesAllocated;
198	/** Number of array resizing calls (for increasing growth rate).
199	* Maintained by RTAsn1MemResizeArray(). */
200	uint16_t cResizeCalls;
201	/** Reserved / padding. */
202	uint16_t uReserved0;
203	/** Allocator vtable, NULL for the default allocator. */
204	PCRTASN1ALLOCATORVTABLE pAllocator;
205	} RTASN1ARRAYALLOCATION;
206
207
208	/**
209	* Allocate a block of zero initialized memory.
210	*
211	* @returns IPRT status code.
212	* @param pAllocation The allocation record (initialized by
213	* RTAsn1CursorInitAllocation or similar).
214	* @param ppvMem Where to return the pointer to the block.
215	* @param cbMem The minimum number of bytes to allocate.
216	*/
217	RTDECL(int) RTAsn1MemAllocZ(PRTASN1ALLOCATION pAllocation, void **ppvMem, size_t cbMem);
218
219	/**
220	* Allocates a block of memory initialized to the content of @a pvSrc.
221	*
222	* @returns IPRT status code.
223	* @param pAllocation The allocation record (initialized by
224	* RTAsn1CursorInitAllocation or similar).
225	* @param ppvMem Where to return the pointer to the block.
226	* @param pvSrc The source memory.
227	* @param cbMem The minimum number of bytes to allocate.
228	*/
229	RTDECL(int) RTAsn1MemDup(PRTASN1ALLOCATION pAllocation, void *ppvMem, void const pvSrc, size_t cbMem);
230
231	/**
232	* Free a memory block.
233	*
234	* @param pAllocation The allocation record (initialized by
235	* RTAsn1CursorInitAllocation or similar).
236	* @param pv The memory block to free. NULL will be ignored.
237	*/
238	RTDECL(void) RTAsn1MemFree(PRTASN1ALLOCATION pAllocation, void *pv);
239
240	/**
241	* Initalize an allocation.
242	*
243	* @returns pAllocation
244	* @param pAllocation The allocation record (initialized by
245	* RTAsn1CursorInitAllocation or similar).
246	* @param pAllocator The allocator
247	*/
248	RTDECL(PRTASN1ALLOCATION) RTAsn1MemInitAllocation(PRTASN1ALLOCATION pAllocation, PCRTASN1ALLOCATORVTABLE pAllocator);
249
250	/**
251	* Initalize an array allocation.
252	*
253	* @returns pAllocation
254	* @param pAllocation The allocation record (initialized by
255	* RTAsn1CursorInitAllocation or similar).
256	* @param pAllocator The allocator
257	* @param cbEntry The entry size.
258	*/
259	RTDECL(PRTASN1ARRAYALLOCATION) RTAsn1MemInitArrayAllocation(PRTASN1ARRAYALLOCATION pAllocation,
260	PCRTASN1ALLOCATORVTABLE pAllocator, size_t cbEntry);
261
262	/**
263	* Resize an array with zero initialized memory.
264	*
265	* @returns IPRT status code.
266	* @param pAllocation The allocation record (initialized by
267	* RTAsn1CursorInitAllocation or similar).
268	* @param ppapvArray Pointer to the variable pointing to the array. This is
269	* both input and output. Remains valid on failure.
270	* @param cCurrent The current entry count. (Relevant for zero
271	* initialization of the new entries.)
272	* @param cNew The new entry count.
273	*/
274	RTDECL(int) RTAsn1MemResizeArray(PRTASN1ARRAYALLOCATION pAllocation, void ***ppapvArray, uint32_t cCurrent, uint32_t cNew);
275
276	/**
277	* Frees an array and all its entries.
278	*
279	* @param pAllocation The array allocation record (initialized by
280	* RTAsn1CursorInitArrayAllocation or similar).
281	* @param papvArray The array to free. NULL is ignored.
282	*/
283	RTDECL(void) RTAsn1MemFreeArray(PRTASN1ARRAYALLOCATION pAllocation, void **papvArray);
284
285
286	/** Pointer to a core ASN.1 encoding info structure. */
287	typedef struct RTASN1CORE *PRTASN1CORE;
288	/** Pointer to a const core ASN.1 encoding info structure. */
289	typedef struct RTASN1CORE const *PCRTASN1CORE;
290
291	RTDECL(int) RTAsn1ContentAllocZ(struct RTASN1CORE *pAsn1Core, size_t cb, PCRTASN1ALLOCATORVTABLE pAllocator);
292	RTDECL(int) RTAsn1ContentDup(struct RTASN1CORE pAsn1Core, void const pvSrc, size_t cbSrc, PCRTASN1ALLOCATORVTABLE pAllocator);
293	RTDECL(int) RTAsn1ContentReallocZ(struct RTASN1CORE *pAsn1Core, size_t cb, PCRTASN1ALLOCATORVTABLE pAllocator);
294	RTDECL(void) RTAsn1ContentFree(struct RTASN1CORE *pAsn1Core);
295
296
297
298	/**
299	* ASN.1 object enumeration callback.
300	*
301	* @returns IPRT status code. VINF_SUCCESS continues the enumberation, all
302	* others quit it and is returned to the caller's caller.
303	* @param pAsn1Core The ASN.1 object we're called back about.
304	* @param pszName The member name. Array member names ends with
305	* '[#]'.
306	* @param uDepth The current depth.
307	* @param pvUser Callback user parameter.
308	*/
309	typedef DECLCALLBACK(int) FNRTASN1ENUMCALLBACK(struct RTASN1CORE pAsn1Core, const char pszName, uint32_t uDepth, void *pvUser);
310	/** Pointer to an ASN.1 object enumeration callback. */
311	typedef FNRTASN1ENUMCALLBACK *PFNRTASN1ENUMCALLBACK;
312
313	/**
314	* ASN.1 object encoding writer callback.
315	*
316	* @returns IPRT status code.
317	* @param pbBuf Pointer to the bytes to output.
318	* @param cbToWrite The number of bytes to write.
319	* @param pvUser Callback user parameter.
320	* @param pErrInfo Where to store extended error info. Optional.
321	*/
322	typedef DECLCALLBACK(int) FNRTASN1ENCODEWRITER(const void pvBuf, size_t cbToWrite, void pvUser, PRTERRINFO pErrInfo);
323	/** Pointer to an ASN.1 encoding writer callback. */
324	typedef FNRTASN1ENCODEWRITER *PFNRTASN1ENCODEWRITER;
325
326	/** @name ASN.1 Vtable Method Types
327	* @{ */
328
329	/**
330	* Destructor.
331	*
332	* RTAsn1Destroy will first destroy all children by recursive calls to pfnEnum,
333	* afterwards it will call this method to release any memory or other resources
334	* associated with this object. The memory backing the object structure shall
335	* not be freed by this method.
336	*
337	* @param pThisCore Pointer to the ASN.1 core to destroy.
338	*/
339	typedef DECLCALLBACK(void) FNRTASN1COREVTDTOR(PRTASN1CORE pThisCore);
340	/** Pointer to a FNRTASN1COREVTDTOR method. */
341	typedef FNRTASN1COREVTDTOR *PFNRTASN1COREVTDTOR;
342
343	/**
344	* Enumerate members (not necessary for primitive objects).
345	*
346	* @returns IPRT status code, any non VINF_SUCCESS value stems from pfnCallback.
347	* @param pThisCore Pointer to the ASN.1 core to enumerate members of.
348	* @param pfnCallback The callback.
349	* @param uDepth The depth of this object. Children are at +1.
350	* @param pvUser Callback user argument.
351	*/
352	typedef DECLCALLBACK(int) FNRTASN1COREVTENUM(PRTASN1CORE pThisCore, PFNRTASN1ENUMCALLBACK pfnCallback,
353	uint32_t uDepth, void *pvUser);
354	/** Pointer to a FNRTASN1COREVTENUM method. */
355	typedef FNRTASN1COREVTENUM *PFNRTASN1COREVTENUM;
356
357	/**
358	* Clone method.
359	*
360	* @param pThisCore Pointer to the ASN.1 core to initialize as a clone
361	* of pSrcClone. (The caller is responsible for making
362	* sure there is sufficent space and such.)
363	* @param pSrcCore The object to clone.
364	* @param pAllocator The allocator to use.
365	*/
366	typedef DECLCALLBACK(int) FNRTASN1COREVTCLONE(PRTASN1CORE pThisCore, PCRTASN1CORE pSrcCore, PCRTASN1ALLOCATORVTABLE pAllocator);
367	/** Pointer to a FNRTASN1COREVTCLONE method. */
368	typedef FNRTASN1COREVTCLONE *PFNRTASN1COREVTCLONE;
369
370	/**
371	* Compare method.
372	*
373	* The caller makes sure both cores are present and have the same Vtable.
374	*
375	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
376	* @param pLeftCore Pointer to the ASN.1 core of the left side object.
377	* @param pRightCore Pointer to the ASN.1 core of the right side object.
378	*/
379	typedef DECLCALLBACK(int) FNRTASN1COREVTCOMPARE(PCRTASN1CORE pLeftCore, PCRTASN1CORE pRightCore);
380	/** Pointer to a FNRTASN1COREVTCOMPARE method. */
381	typedef FNRTASN1COREVTCOMPARE *PFNRTASN1COREVTCOMPARE;
382
383	/**
384	* Check sanity method.
385	*
386	* @returns IPRT status code.
387	* @param pThisCore Pointer to the ASN.1 core of the object to check out.
388	* @param fFlags See RTASN1_CHECK_SANITY_F_XXX.
389	* @param pErrInfo Where to return additional error details. Optional.
390	* @param pszErrorTag Tag for the additional error details.
391	*/
392	typedef DECLCALLBACK(int) FNRTASN1COREVTCHECKSANITY(PCRTASN1CORE pThisCore, uint32_t fFlags,
393	PRTERRINFO pErrInfo, const char *pszErrorTag);
394	/** Pointer to a FNRTASN1COREVTCHECKSANITY method. */
395	typedef FNRTASN1COREVTCHECKSANITY *PFNRTASN1COREVTCHECKSANITY;
396
397	/**
398	* Optional encoding preparations.
399	*
400	* On successful return, the pThisCore->cb value shall be valid and up to date.
401	* Will be called for any present object, including ones with default values and
402	* similar.
403	*
404	* @returns IPRT status code
405	* @param pThisCore Pointer to the ASN.1 core to enumerate members of.
406	* @param fFlags Encoding flags, RTASN1ENCODE_F_XXX.
407	* @param pErrInfo Where to return extra error information. Optional.
408	*/
409	typedef DECLCALLBACK(int) FNRTASN1COREVTENCODEPREP(PRTASN1CORE pThisCore, uint32_t fFlags, PRTERRINFO pErrInfo);
410	/** Pointer to a FNRTASN1COREVTENCODEWRITE method. */
411	typedef FNRTASN1COREVTENCODEPREP *PFNRTASN1COREVTENCODEPREP;
412
413	/**
414	* Optional encoder writer.
415	*
416	* This writes the header as well as all the content. Will be called for any
417	* present object, including ones with default values and similar.
418	*
419	* @returns IPRT status code.
420	* @param pThisCore Pointer to the ASN.1 core to enumerate members of.
421	* @param fFlags Encoding flags, RTASN1ENCODE_F_XXX.
422	* @param pfnWriter The output writer function.
423	* @param pvUser The user context for the writer function.
424	* @param pErrInfo Where to return extra error information. Optional.
425	*/
426	typedef DECLCALLBACK(int) FNRTASN1COREVTENCODEWRITE(PRTASN1CORE pThisCore, uint32_t fFlags, PFNRTASN1ENCODEWRITER pfnWriter,
427	void *pvUser, PRTERRINFO pErrInfo);
428	/** Pointer to a FNRTASN1COREVTENCODEWRITE method. */
429	typedef FNRTASN1COREVTENCODEWRITE *PFNRTASN1COREVTENCODEWRITE;
430	/** @} */
431
432	/** Mask of common flags. These will be propagated during sanity checking.
433	* Bits not in this mask are type specfic. */
434	#define RTASN1_CHECK_SANITY_F_COMMON_MASK UINT32_C(0xffff0000)
435
436	/**
437	* ASN.1 core vtable.
438	*/
439	typedef struct RTASN1COREVTABLE
440	{
441	/** The name. */
442	const char *pszName;
443	/** Size of the structure. */
444	uint32_t cbStruct;
445	/** The default tag, UINT8_MAX if not applicable. */
446	uint8_t uDefaultTag;
447	/** The default class and flags. */
448	uint8_t fDefaultClass;
449	/** Reserved for later / alignment. */
450	uint16_t uReserved;
451	/** @copydoc FNRTASN1COREVTDTOR */
452	PFNRTASN1COREVTDTOR pfnDtor;
453	/** @copydoc FNRTASN1COREVTENUM */
454	PFNRTASN1COREVTENUM pfnEnum;
455	/** @copydoc FNRTASN1COREVTCLONE */
456	PFNRTASN1COREVTCLONE pfnClone;
457	/** @copydoc FNRTASN1COREVTCOMPARE */
458	PFNRTASN1COREVTCOMPARE pfnCompare;
459	/** @copydoc FNRTASN1COREVTCHECKSANITY */
460	PFNRTASN1COREVTCHECKSANITY pfnCheckSanity;
461	/** @copydoc FNRTASN1COREVTENCODEPREP */
462	PFNRTASN1COREVTENCODEPREP pfnEncodePrep;
463	/** @copydoc FNRTASN1COREVTENUM */
464	PFNRTASN1COREVTENCODEWRITE pfnEncodeWrite;
465	} RTASN1COREVTABLE;
466	/** Pointer to an ASN.1 allocator vtable. */
467	typedef struct RTASN1COREVTABLE *PRTASN1COREVTABLE;
468	/** Pointer to a const ASN.1 allocator vtable. */
469	typedef RTASN1COREVTABLE const *PCRTASN1COREVTABLE;
470
471
472	/** @name Helper macros for prototyping standard functions for an ASN.1 type.
473	* @{ */
474
475	#define RTASN1TYPE_STANDARD_PROTOTYPES_NO_GET_CORE(a_TypeNm, a_DeclMacro, a_ImplExtNm) \
476	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Init)(RT_CONCAT(P,a_TypeNm) pThis, PCRTASN1ALLOCATORVTABLE pAllocator); \
477	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Clone)(RT_CONCAT(P,a_TypeNm) pThis, RT_CONCAT(PC,a_TypeNm) pSrc, \
478	PCRTASN1ALLOCATORVTABLE pAllocator); \
479	a_DeclMacro(void) RT_CONCAT(a_ImplExtNm,_Delete)(RT_CONCAT(P,a_TypeNm) pThis); \
480	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Enum)(RT_CONCAT(P,a_TypeNm) pThis, PFNRTASN1ENUMCALLBACK pfnCallback, \
481	uint32_t uDepth, void *pvUser); \
482	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Compare)(RT_CONCAT(PC,a_TypeNm) pLeft, RT_CONCAT(PC,a_TypeNm) pRight); \
483	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_DecodeAsn1)(PRTASN1CURSOR pCursor, uint32_t fFlags, RT_CONCAT(P,a_TypeNm) pThis,\
484	const char *pszErrorTag); \
485	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_CheckSanity)(RT_CONCAT(PC,a_TypeNm) pThis, uint32_t fFlags, \
486	PRTERRINFO pErrInfo, const char *pszErrorTag)
487
488
489	#define RTASN1TYPE_STANDARD_PROTOTYPES(a_TypeNm, a_DeclMacro, a_ImplExtNm, a_Asn1CoreNm) \
490	DECL_FORCE_INLINE(PRTASN1CORE) RT_CONCAT(a_ImplExtNm,_GetAsn1Core)(RT_CONCAT(PC,a_TypeNm) pThis) \
491	{ return (PRTASN1CORE)&pThis->a_Asn1CoreNm; } \
492	DECLINLINE(bool) RT_CONCAT(a_ImplExtNm,_IsPresent)(RT_CONCAT(PC,a_TypeNm) pThis) \
493	{ return pThis && RTASN1CORE_IS_PRESENT(&pThis->a_Asn1CoreNm); } \
494	RTASN1TYPE_STANDARD_PROTOTYPES_NO_GET_CORE(a_TypeNm, a_DeclMacro, a_ImplExtNm)
495
496
497	/** Aliases two ASN.1 types, no method aliases. */
498	#define RTASN1TYPE_ALIAS_TYPE_ONLY(a_TypeNm, a_AliasType) \
499	typedef a_AliasType a_TypeNm; \
500	typedef a_TypeNm *RT_CONCAT(P,a_TypeNm); \
501	typedef a_TypeNm const *RT_CONCAT(PC,a_TypeNm)
502
503	/** Aliases two ASN.1 types and methods. */
504	#define RTASN1TYPE_ALIAS(a_TypeNm, a_AliasType, a_ImplExtNm, a_AliasExtNm) \
505	typedef a_AliasType a_TypeNm; \
506	typedef a_TypeNm *RT_CONCAT(P,a_TypeNm); \
507	\
508	DECLINLINE(PRTASN1CORE) RT_CONCAT(a_ImplExtNm,_GetAsn1Core)(a_TypeNm const *pThis) \
509	{ return RT_CONCAT(a_AliasExtNm,_GetAsn1Core)(pThis); } \
510	DECLINLINE(bool) RT_CONCAT(a_ImplExtNm,_IsPresent)(a_TypeNm const *pThis) \
511	{ return RT_CONCAT(a_AliasExtNm,_IsPresent)(pThis); } \
512	\
513	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_Init)(RT_CONCAT(P,a_TypeNm) pThis, PCRTASN1ALLOCATORVTABLE pAllocator) \
514	{ return RT_CONCAT(a_AliasExtNm,_Init)(pThis, pAllocator); } \
515	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_Clone)(RT_CONCAT(P,a_TypeNm) pThis, a_TypeNm const *pSrc, \
516	PCRTASN1ALLOCATORVTABLE pAllocator) \
517	{ return RT_CONCAT(a_AliasExtNm,_Clone)(pThis, pSrc, pAllocator); } \
518	DECLINLINE(void) RT_CONCAT(a_ImplExtNm,_Delete)(RT_CONCAT(P,a_TypeNm) pThis) \
519	{ RT_CONCAT(a_AliasExtNm,_Delete)(pThis); } \
520	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_Enum)(a_TypeNm *pThis, PFNRTASN1ENUMCALLBACK pfnCallback, \
521	uint32_t uDepth, void *pvUser) \
522	{ return RT_CONCAT(a_AliasExtNm,_Enum)(pThis, pfnCallback, uDepth, pvUser); } \
523	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_Compare)(a_TypeNm const pLeft, a_TypeNm const pRight) \
524	{ return RT_CONCAT(a_AliasExtNm,_Compare)(pLeft, pRight); } \
525	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_DecodeAsn1)(PRTASN1CURSOR pCursor, uint32_t fFlags, RT_CONCAT(P,a_TypeNm) pThis,\
526	const char *pszErrorTag) \
527	{ return RT_CONCAT(a_AliasExtNm,_DecodeAsn1)(pCursor, fFlags, pThis, pszErrorTag); } \
528	DECLINLINE(int) RT_CONCAT(a_ImplExtNm,_CheckSanity)(a_TypeNm const *pThis, uint32_t fFlags, \
529	PRTERRINFO pErrInfo, const char *pszErrorTag) \
530	{ return RT_CONCAT(a_AliasExtNm,_CheckSanity)(pThis, fFlags, pErrInfo, pszErrorTag); } \
531	\
532	typedef a_TypeNm const *RT_CONCAT(PC,a_TypeNm)
533
534	/** @} */
535
536
537	/**
538	* Core ASN.1 structure for storing encoding details and data location.
539	*
540	* This is used as a 'parent' for all other decoded ASN.1 based structures.
541	*/
542	typedef struct RTASN1CORE
543	{
544	/** The tag.
545	* @remarks 32-bit should be enough for everyone... We don't currently
546	* implement decoding tags larger than 30 anyway. :-) */
547	uint32_t uTag;
548	/** Tag class and flags (ASN1_TAGCLASS_XXX and ASN1_TAGFLAG_XXX). */
549	uint8_t fClass;
550	/** The real tag value for IMPLICT tag overrides. */
551	uint8_t uRealTag;
552	/** The real class value for IMPLICT tag overrides. */
553	uint8_t fRealClass;
554	/** The size of the tag and length ASN.1 header. */
555	uint8_t cbHdr;
556	/** Length. */
557	uint32_t cb;
558	/** IPRT flags (RTASN1CORE_F_XXX). */
559	uint32_t fFlags;
560	/** Pointer to the data.
561	* After decoding this generally points to the encoded data content. When
562	* preparting something for encoding or otherwise constructing things in memory,
563	* this generally points heap memory or read-only constants.
564	* @sa RTAsn1ContentAllocZ, RTAsn1ContentReallocZ, RTAsn1ContentDup,
565	* RTAsn1ContentFree. */
566	RTCPTRUNION uData;
567	/** Pointer to the virtual method table for this object. Optional. */
568	PCRTASN1COREVTABLE pOps;
569	} RTASN1CORE;
570	/** The Vtable for a RTASN1CORE structure when not in some way use used as a
571	* parent type/class. */
572	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Core_Vtable;
573
574	RTASN1TYPE_STANDARD_PROTOTYPES_NO_GET_CORE(RTASN1CORE, RTDECL, RTAsn1Core);
575
576	/** @name RTASN1CORE_F_XXX - Flags for RTASN1CORE::fFlags
577	* @{ */
578	/** Present/valid. */
579	#define RTASN1CORE_F_PRESENT RT_BIT_32(0)
580	/** Not present in stream, using default value. */
581	#define RTASN1CORE_F_DEFAULT RT_BIT_32(1)
582	/** The tag was overriden by an implict context tag or some such thing,
583	* RTASN1CORE::uImplicitTag hold the universal tag value if one exists. */
584	#define RTASN1CORE_F_TAG_IMPLICIT RT_BIT_32(2)
585	/** Primitive tag with the corresponding RTASN1XXX struct. */
586	#define RTASN1CORE_F_PRIMITE_TAG_STRUCT RT_BIT_32(3)
587	/** Dummy node typically used with choices, has children, not encoded, must be
588	* ignored. */
589	#define RTASN1CORE_F_DUMMY RT_BIT_32(4)
590	/** Allocated content (pointed to by uData).
591	* The content should is still be considered 104% read-only by anyone other
592	* than then type methods (pOps and associates). */
593	#define RTASN1CORE_F_ALLOCATED_CONTENT RT_BIT_32(5)
594	/** Decoded content (pointed to by uData).
595	* Mutually exclusive with RTASN1CORE_F_ALLOCATED_CONTENT. If neither is
596	* set, uData might be NULL or point to some shared static memory for
597	* frequently used values. */
598	#define RTASN1CORE_F_DECODED_CONTENT RT_BIT_32(6)
599	/** Indefinite length, still pending. */
600	#define RTASN1CORE_F_INDEFINITE_LENGTH RT_BIT_32(7)
601	/** @} */
602
603
604	/** Checks whether an ASN.1 core object present in some way (default data,
605	* decoded data, ...). */
606	#define RTASN1CORE_IS_PRESENT(a_pAsn1Core) ( RT_BOOL((a_pAsn1Core)->fFlags) )
607
608	/** Checks whether an ASN.1 core object is a dummy object (and is present). */
609	#define RTASN1CORE_IS_DUMMY(a_pAsn1Core) ( RT_BOOL((a_pAsn1Core)->fFlags & RTASN1CORE_F_DUMMY) )
610
611	/**
612	* Calculates pointer to the raw ASN.1 record.
613	*
614	* ASSUMES that it's decoded content and that cbHdr and uData are both valid.
615	*
616	* @returns Byte pointer to the first tag byte.
617	* @param a_pAsn1Core The ASN.1 core.
618	*/
619	#define RTASN1CORE_GET_RAW_ASN1_PTR(a_pAsn1Core) ( (a_pAsn1Core)->uData.pu8 - (a_pAsn1Core)->cbHdr )
620
621	/**
622	* Calculates the length of the raw ASN.1 record to go with the
623	* RTASN1CORE_GET_RAW_ASN1_PTR() result.
624	*
625	* ASSUMES that it's decoded content and that cbHdr and uData are both valid.
626	*
627	* @returns Size in bytes (uint32_t).
628	* @param a_pAsn1Core The ASN.1 core.
629	*/
630	#define RTASN1CORE_GET_RAW_ASN1_SIZE(a_pAsn1Core) ( (a_pAsn1Core)->cbHdr + (a_pAsn1Core)->cb )
631
632	/**
633	* Retrievs the tag or implicit tag depending on the RTASN1CORE_F_TAG_IMPLICIT
634	* flag.
635	*
636	* @returns The ASN.1 tag of the object.
637	* @param a_pAsn1Core The ASN.1 core.
638	*/
639	#define RTASN1CORE_GET_TAG(a_pAsn1Core) ( !((a_pAsn1Core)->fFlags & RTASN1CORE_F_TAG_IMPLICIT) ? (a_pAsn1Core)->uTag : (a_pAsn1Core)->uRealTag )
640
641
642	DECL_FORCE_INLINE(PRTASN1CORE) RTAsn1Core_GetAsn1Core(PCRTASN1CORE pThis)
643	{
644	return (PRTASN1CORE)pThis;
645	}
646
647
648	DECL_FORCE_INLINE(bool) RTAsn1Core_IsPresent(PCRTASN1CORE pThis)
649	{
650	return pThis && RTASN1CORE_IS_PRESENT(pThis);
651	}
652
653
654	RTDECL(int) RTAsn1Core_InitEx(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass, PCRTASN1COREVTABLE pOps, uint32_t fFlags);
655	/**
656	* Initialize the ASN.1 core object representation to a default value.
657	*
658	* @returns VINF_SUCCESS
659	* @param pAsn1Core The ASN.1 core.
660	* @param uTag The tag number.
661	* @param fClass The tag class and flags.
662	*/
663	RTDECL(int) RTAsn1Core_InitDefault(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass);
664	RTDECL(int) RTAsn1Core_CloneContent(PRTASN1CORE pThis, PCRTASN1CORE pSrc, PCRTASN1ALLOCATORVTABLE pAllocator);
665	RTDECL(int) RTAsn1Core_CloneNoContent(PRTASN1CORE pThis, PCRTASN1CORE pSrc);
666	RTDECL(int) RTAsn1Core_SetTagAndFlags(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass);
667	RTDECL(int) RTAsn1Core_ChangeTag(PRTASN1CORE pAsn1Core, uint32_t uTag);
668	RTDECL(void) RTAsn1Core_ResetImplict(PRTASN1CORE pThis);
669	RTDECL(int) RTAsn1Core_CompareEx(PCRTASN1CORE pLeft, PCRTASN1CORE pRight, bool fIgnoreTagAndClass);
670
671
672	/**
673	* Dummy ASN.1 object for use in choices and similar non-sequence structures.
674	*
675	* This allows hooking up destructors, enumerators and such, as well as not
676	* needing custom code for sequence-of / set-of collections.
677	*/
678	typedef struct RTASN1DUMMY
679	{
680	/** Core ASN.1. */
681	RTASN1CORE Asn1Core;
682	} RTASN1DUMMY;
683	/** Pointer to a dummy record. */
684	typedef RTASN1DUMMY *PRTASN1DUMMY;
685
686
687	/**
688	* Initalizes a dummy ASN.1 object.
689	*
690	* @returns VINF_SUCCESS.
691	* @param pThis The dummy object.
692	*/
693	RTDECL(int) RTAsn1Dummy_InitEx(PRTASN1DUMMY pThis);
694
695	/**
696	* Standard compliant initalizer.
697	*
698	* @returns VINF_SUCCESS.
699	* @param pThis The dummy object.
700	* @param pAllocator Ignored.
701	*/
702	DECLINLINE(int) RTAsn1Dummy_Init(PRTASN1DUMMY pThis, PCRTASN1ALLOCATORVTABLE pAllocator)
703	{
704	NOREF(pAllocator);
705	return RTAsn1Dummy_InitEx(pThis);
706	}
707
708
709	/**
710	* ASN.1 sequence core (IPRT representation).
711	*/
712	typedef struct RTASN1SEQUENCECORE
713	{
714	/** Core ASN.1 encoding details. */
715	RTASN1CORE Asn1Core;
716	} RTASN1SEQUENCECORE;
717	/** Pointer to an ASN.1 sequence core (IPRT representation). */
718	typedef RTASN1SEQUENCECORE *PRTASN1SEQUENCECORE;
719	/** Pointer to a const ASN.1 sequence core (IPRT representation). */
720	typedef RTASN1SEQUENCECORE const *PCRTASN1SEQUENCECORE;
721
722	RTDECL(int) RTAsn1SequenceCore_Init(PRTASN1SEQUENCECORE pSeqCore, PCRTASN1COREVTABLE pVtable);
723	RTDECL(int) RTAsn1SequenceCore_Clone(PRTASN1SEQUENCECORE pSeqCore, PCRTASN1COREVTABLE pVtable, PCRTASN1SEQUENCECORE pSrc);
724
725	/**
726	* ASN.1 sequence-of core (IPRT representation).
727	*/
728	#if 0
729	typedef struct RTASN1SEQOFCORE
730	{
731	/** Core ASN.1 encoding details. */
732	RTASN1CORE Asn1Core;
733	} RTASN1SEQUENCECORE;
734	/** Pointer to an ASN.1 sequence-of core (IPRT representation). */
735	typedef RTASN1SEQUENCECORE *PRTASN1SEQUENCECORE;
736	/** Pointer to a const ASN.1 sequence-of core (IPRT representation). */
737	typedef RTASN1SEQUENCECORE const *PCRTASN1SEQUENCECORE;
738	#else
739	# define RTASN1SEQOFCORE RTASN1SEQUENCECORE
740	# define PRTASN1SEQOFCORE PRTASN1SEQUENCECORE
741	# define PCRTASN1SEQOFCORE PCRTASN1SEQUENCECORE
742	#endif
743	RTDECL(int) RTAsn1SeqOfCore_Init(PRTASN1SEQOFCORE pThis, PCRTASN1COREVTABLE pVtable);
744	RTDECL(int) RTAsn1SeqOfCore_Clone(PRTASN1SEQOFCORE pThis, PCRTASN1COREVTABLE pVtable, PCRTASN1SEQOFCORE pSrc);
745
746
747	/** Defines the typedefs and prototypes for a generic sequence-of/set-of type. */
748	#define RTASN1_IMPL_GEN_SEQ_OR_SET_OF_TYPEDEFS_AND_PROTOS(a_CoreType, a_CoreMember, \
749	a_ThisType, a_ItemType, a_DeclMacro, a_ImplExtNm) \
750	typedef struct a_ThisType \
751	{ \
752	/** Sequence/set core. */ \
753	a_CoreType a_CoreMember; \
754	/** The array allocation tracker. */ \
755	RTASN1ARRAYALLOCATION Allocation; \
756	/** Items in the array. */ \
757	uint32_t cItems; \
758	/** Array. */ \
759	RT_CONCAT(P,a_ItemType) *papItems; \
760	} a_ThisType; \
761	typedef a_ThisType *RT_CONCAT(P,a_ThisType); \
762	typedef a_ThisType const *RT_CONCAT(PC,a_ThisType); \
763	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_Erase)(RT_CONCAT(P,a_ThisType) pThis, uint32_t iPosition); \
764	a_DeclMacro(int) RT_CONCAT(a_ImplExtNm,_InsertEx)(RT_CONCAT(P,a_ThisType) pThis, uint32_t iPosition, \
765	RT_CONCAT(PC,a_ItemType) pToClone, \
766	PCRTASN1ALLOCATORVTABLE pAllocator, uint32_t *piActualPos); \
767	/** Appends entry with default content, returns index or negative error code. */ \
768	DECLINLINE(int32_t) RT_CONCAT(a_ImplExtNm,_Append)(RT_CONCAT(P,a_ThisType) pThis) \
769	{ \
770	uint32_t uPos = pThis->cItems; \
771	int rc = RT_CONCAT(a_ImplExtNm,_InsertEx)(pThis, uPos, NULL /pToClone/, pThis->Allocation.pAllocator, &uPos); \
772	if (RT_SUCCESS(rc)) \
773	return uPos; \
774	return rc; \
775	} \
776	RTASN1TYPE_STANDARD_PROTOTYPES(a_ThisType, a_DeclMacro, a_ImplExtNm, a_CoreMember.Asn1Core)
777
778	/** Defines the typedefs and prototypes for a generic sequence-of type. */
779	#define RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(a_SeqOfType, a_ItemType, a_DeclMacro, a_ImplExtNm) \
780	RTASN1_IMPL_GEN_SEQ_OR_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQUENCECORE, SeqCore, a_SeqOfType, a_ItemType, a_DeclMacro, a_ImplExtNm)
781
782
783	/**
784	* ASN.1 set core (IPRT representation).
785	*/
786	typedef struct RTASN1SETCORE
787	{
788	/** Core ASN.1 encoding details. */
789	RTASN1CORE Asn1Core;
790	} RTASN1SETCORE;
791	/** Pointer to an ASN.1 set core (IPRT representation). */
792	typedef RTASN1SETCORE *PRTASN1SETCORE;
793	/** Pointer to a const ASN.1 set core (IPRT representation). */
794	typedef RTASN1SETCORE const *PCRTASN1SETCORE;
795
796	RTDECL(int) RTAsn1SetCore_Init(PRTASN1SETCORE pThis, PCRTASN1COREVTABLE pVtable);
797	RTDECL(int) RTAsn1SetCore_Clone(PRTASN1SETCORE pThis, PCRTASN1COREVTABLE pVtable, PCRTASN1SETCORE pSrc);
798
799	/**
800	* ASN.1 set-of core (IPRT representation).
801	*/
802	#if 0
803	typedef struct RTASN1SETOFCORE
804	{
805	/** Core ASN.1 encoding details. */
806	RTASN1CORE Asn1Core;
807	} RTASN1SETUENCECORE;
808	/** Pointer to an ASN.1 set-of core (IPRT representation). */
809	typedef RTASN1SETUENCECORE *PRTASN1SETUENCECORE;
810	/** Pointer to a const ASN.1 set-of core (IPRT representation). */
811	typedef RTASN1SETUENCECORE const *PCRTASN1SETUENCECORE;
812	#else
813	# define RTASN1SETOFCORE RTASN1SETCORE
814	# define PRTASN1SETOFCORE PRTASN1SETCORE
815	# define PCRTASN1SETOFCORE PCRTASN1SETCORE
816	#endif
817	RTDECL(int) RTAsn1SetOfCore_Init(PRTASN1SETOFCORE pThis, PCRTASN1COREVTABLE pVtable);
818	RTDECL(int) RTAsn1SetOfCore_Clone(PRTASN1SETOFCORE pThis, PCRTASN1COREVTABLE pVtable, PCRTASN1SETOFCORE pSrc);
819
820
821	/** Defines the typedefs and prototypes for a generic set-of type. */
822	#define RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(a_SetOfType, a_ItemType, a_DeclMacro, a_ImplExtNm) \
823	RTASN1_IMPL_GEN_SEQ_OR_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETCORE, SetCore, a_SetOfType, a_ItemType, a_DeclMacro, a_ImplExtNm)
824
825
826	/*
827	* Declare sets and sequences of the core structure.
828	*/
829	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFCORES, RTASN1CORE, RTDECL, RTAsn1SeqOfCores);
830	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFCORES, RTASN1CORE, RTDECL, RTAsn1SetOfCores);
831
832
833	/**
834	* ASN.1 null (IPRT representation).
835	*/
836	typedef struct RTASN1NULL
837	{
838	/** Core ASN.1 encoding details. */
839	RTASN1CORE Asn1Core;
840	} RTASN1NULL;
841	/** Pointer to an ASN.1 null (IPRT representation). */
842	typedef RTASN1NULL *PRTASN1NULL;
843	/** Pointer to a const ASN.1 null (IPRT representation). */
844	typedef RTASN1NULL const *PCRTASN1NULL;
845	/** The Vtable for a RTASN1NULL structure. */
846	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Null_Vtable;
847
848	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1NULL, RTDECL, RTAsn1Null, Asn1Core);
849
850
851	/**
852	* ASN.1 integer (IPRT representation).
853	*/
854	typedef struct RTASN1INTEGER
855	{
856	/** Core ASN.1 encoding details. */
857	RTASN1CORE Asn1Core;
858	/** The unsigned C representation of the 64 least significant bits.
859	* @note A ASN.1 integer doesn't define signed/unsigned and can have any
860	* length you like. Thus, the user needs to check the size and
861	* preferably use the access APIs for signed numbers. */
862	RTUINT64U uValue;
863	} RTASN1INTEGER;
864	/** Pointer to an ASN.1 integer (IPRT representation). */
865	typedef RTASN1INTEGER *PRTASN1INTEGER;
866	/** Pointer to a const ASN.1 integer (IPRT representation). */
867	typedef RTASN1INTEGER const *PCRTASN1INTEGER;
868	/** The Vtable for a RTASN1INTEGER structure. */
869	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Integer_Vtable;
870
871	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1INTEGER, RTDECL, RTAsn1Integer, Asn1Core);
872
873	/**
874	* Initializes an interger object to a default value.
875	* @returns VINF_SUCCESS.
876	* @param pInteger The integer object representation.
877	* @param uValue The default value (unsigned 64-bit).
878	* @param pAllocator The allocator (pro forma).
879	*/
880	RTDECL(int) RTAsn1Integer_InitDefault(PRTASN1INTEGER pInteger, uint64_t uValue, PCRTASN1ALLOCATORVTABLE pAllocator);
881
882	RTDECL(int) RTAsn1Integer_InitU64(PRTASN1INTEGER pThis, uint64_t uValue, PCRTASN1ALLOCATORVTABLE pAllocator);
883
884	/**
885	* Get the most significat bit that's set (1).
886	*
887	* @returns 0-base bit number, -1 if all clear.
888	* @param pInteger The integer to check.
889	*/
890	RTDECL(int32_t) RTAsn1Integer_UnsignedLastBit(PCRTASN1INTEGER pInteger);
891
892	/**
893	* Compares two ASN.1 unsigned integers.
894	*
895	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
896	* @param pLeft The first ASN.1 integer.
897	* @param pRight The second ASN.1 integer.
898	*/
899	RTDECL(int) RTAsn1Integer_UnsignedCompare(PCRTASN1INTEGER pLeft, PCRTASN1INTEGER pRight);
900
901	/**
902	* Compares an ASN.1 unsigned integer with a uint64_t.
903	*
904	* @returns 0 if equal, -1 if @a pInteger is smaller, 1 if @a pInteger is
905	* larger.
906	* @param pInteger The ASN.1 integer to treat as unsigned.
907	* @param u64Const The uint64_t constant to compare with.
908	*/
909	RTDECL(int) RTAsn1Integer_UnsignedCompareWithU64(PCRTASN1INTEGER pInteger, uint64_t u64Const);
910
911	/**
912	* Compares an ASN.1 unsigned integer with a uint32_t.
913	*
914	* @returns 0 if equal, -1 if @a pInteger is smaller, 1 if @a pInteger is
915	* larger.
916	* @param pInteger The ASN.1 integer to treat as unsigned.
917	* @param u32Const The uint32_t constant to compare with.
918	* @remarks We don't bother with U16 and U8 variants, just use this instead.
919	*/
920	RTDECL(int) RTAsn1Integer_UnsignedCompareWithU32(PCRTASN1INTEGER pInteger, uint32_t u32Const);
921
922
923	/**
924	* Initializes a big integer number from an ASN.1 integer.
925	*
926	* @returns IPRT status code.
927	* @param pInteger The ASN.1 integer.
928	* @param pBigNum The big integer number structure to initialize.
929	* @param fBigNumInit Subset of RTBIGNUMINIT_F_XXX that concerns
930	* senitivity, signedness and endianness.
931	*/
932	RTDECL(int) RTAsn1Integer_ToBigNum(PCRTASN1INTEGER pInteger, PRTBIGNUM pBigNum, uint32_t fBigNumInit);
933	RTDECL(int) RTAsn1Integer_FromBigNum(PRTASN1INTEGER pThis, PCRTBIGNUM pBigNum, PCRTASN1ALLOCATORVTABLE pAllocator);
934
935	/**
936	* Converts the integer to a string.
937	*
938	* This will produce a hex represenation of the number. If it fits in 64-bit, a
939	* C style hex number will be produced. If larger than 64-bit, it will be
940	* printed as a space separated string of hex bytes.
941	*
942	* @returns IPRT status code.
943	* @param pThis The ASN.1 integer.
944	* @param pszBuf The output buffer.
945	* @param cbBuf The buffer size.
946	* @param fFlags Flags reserved for future exploits. MBZ.
947	* @param pcbActual Where to return the amount of buffer space used
948	* (i.e. including terminator). Optional.
949	*
950	* @remarks Currently assume unsigned number.
951	*/
952	RTDECL(int) RTAsn1Integer_ToString(PRTASN1INTEGER pThis, char pszBuf, size_t cbBuf, uint32_t fFlags, size_t pcbActual);
953
954	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFINTEGERS, RTASN1INTEGER, RTDECL, RTAsn1SeqOfIntegers);
955	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFINTEGERS, RTASN1INTEGER, RTDECL, RTAsn1SetOfIntegers);
956
957
958
959	/**
960	* ASN.1 boolean (IPRT representation).
961	*/
962	typedef struct RTASN1BOOLEAN
963	{
964	/** Core ASN.1 encoding details. */
965	RTASN1CORE Asn1Core;
966	/** The boolean value. */
967	bool fValue;
968	} RTASN1BOOLEAN;
969	/** Pointer to the IPRT representation of an ASN.1 boolean. */
970	typedef RTASN1BOOLEAN *PRTASN1BOOLEAN;
971	/** Pointer to the const IPRT representation of an ASN.1 boolean. */
972	typedef RTASN1BOOLEAN const *PCRTASN1BOOLEAN;
973	/** The Vtable for a RTASN1BOOLEAN structure. */
974	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Boolean_Vtable;
975
976	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1BOOLEAN, RTDECL, RTAsn1Boolean, Asn1Core);
977
978	/**
979	* Initializes a boolean object to a default value.
980	* @returns VINF_SUCCESS
981	* @param pBoolean The boolean object representation.
982	* @param fValue The default value.
983	* @param pAllocator The allocator (pro forma).
984	*/
985	RTDECL(int) RTAsn1Boolean_InitDefault(PRTASN1BOOLEAN pBoolean, bool fValue, PCRTASN1ALLOCATORVTABLE pAllocator);
986	RTDECL(int) RTAsn1Boolean_Set(PRTASN1BOOLEAN pThis, bool fValue);
987
988	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFBOOLEANS, RTASN1BOOLEAN, RTDECL, RTAsn1SeqOfBooleans);
989	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFBOOLEANS, RTASN1BOOLEAN, RTDECL, RTAsn1SetOfBooleans);
990
991
992
993	/**
994	* ASN.1 UTC and Generalized Time (IPRT representation).
995	*
996	* The two time types only differs in the precision the render (UTC time being
997	* the one for which you go "WTF were they thinking?!!" for in 2014).
998	*/
999	typedef struct RTASN1TIME
1000	{
1001	/** The core structure, either ASN1_TAG_UTC_TIME or
1002	* ASN1_TAG_GENERALIZED_TIME. */
1003	RTASN1CORE Asn1Core;
1004	/** The exploded time. */
1005	RTTIME Time;
1006	} RTASN1TIME;
1007	/** Pointer to an IPRT representation of ASN.1 UTC/Generalized time. */
1008	typedef RTASN1TIME *PRTASN1TIME;
1009	/** Pointer to a const IPRT representation of ASN.1 UTC/Generalized time. */
1010	typedef RTASN1TIME const *PCRTASN1TIME;
1011	/** The Vtable for a RTASN1TIME structure. */
1012	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1Time_Vtable;
1013
1014	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1TIME, RTDECL, RTAsn1Time, Asn1Core);
1015
1016	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1TIME, RTDECL, RTAsn1UtcTime, Asn1Core);
1017	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1TIME, RTDECL, RTAsn1GeneralizedTime, Asn1Core);
1018
1019	/**
1020	* Compares two ASN.1 time values.
1021	*
1022	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
1023	* @param pLeft The first ASN.1 time object.
1024	* @param pTsRight The second time to compare.
1025	*/
1026	RTDECL(int) RTAsn1Time_CompareWithTimeSpec(PCRTASN1TIME pLeft, PCRTTIMESPEC pTsRight);
1027
1028	RTDECL(int) RTAsn1Time_InitEx(PRTASN1TIME pThis, uint32_t uTag, PCRTASN1ALLOCATORVTABLE pAllocator);
1029
1030	/** @name Predicate macros for determing the exact type of RTASN1TIME.
1031	* @{ */
1032	/** True if UTC time. */
1033	#define RTASN1TIME_IS_UTC_TIME(a_pAsn1Time) ((a_pAsn1Time)->Asn1Core.uTag == ASN1_TAG_UTC_TIME)
1034	/** True if generalized time. */
1035	#define RTASN1TIME_IS_GENERALIZED_TIME(a_pAsn1Time) ((a_pAsn1Time)->Asn1Core.uTag == ASN1_TAG_GENERALIZED_TIME)
1036	/** @} */
1037
1038	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFTIMES, RTASN1TIME, RTDECL, RTAsn1SeqOfTimes);
1039	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFTIMES, RTASN1TIME, RTDECL, RTAsn1SetOfTimes);
1040
1041
1042
1043	/**
1044	* ASN.1 object identifier (IPRT representation).
1045	*/
1046	typedef struct RTASN1OBJID
1047	{
1048	/** Core ASN.1 encoding details. */
1049	RTASN1CORE Asn1Core;
1050	/** Coverning the paComponents memory allocation if there isn't enough room in
1051	* szObjId for both the dottet string and the component values. */
1052	RTASN1ALLOCATION Allocation;
1053	/** Pointer to an array with the component values.
1054	* This may point within szObjId if there is enough space for both there. */
1055	uint32_t const *pauComponents;
1056	/** The number of components in the object identifier.
1057	* This ASSUMES that nobody will be ever needing more than 255 components. */
1058	uint8_t cComponents;
1059	/** The dotted string representation of the object identifier.
1060	* If there is sufficient space after the string, we will place the array that
1061	* paComponents points to here and/or the raw content bytes (Asn1Core.uData).
1062	*
1063	* An analysis of dumpasn1.cfg, hl7.org and our own _OID defines indicates
1064	* that we need space for at least 10 components and 30-something chars. We've
1065	* allocated 87 bytes, which we ASSUME should be enough for everyone. */
1066	char szObjId[87];
1067	} RTASN1OBJID;
1068	/** Pointer to an ASN.1 object identifier representation. */
1069	typedef RTASN1OBJID *PRTASN1OBJID;
1070	/** Pointer to a const ASN.1 object identifier representation. */
1071	typedef RTASN1OBJID const *PCRTASN1OBJID;
1072	/** The Vtable for a RTASN1OBJID structure. */
1073	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1ObjId_Vtable;
1074
1075	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1OBJID, RTDECL, RTAsn1ObjId, Asn1Core);
1076
1077	RTDECL(int) RTAsn1ObjId_InitFromString(PRTASN1OBJID pThis, const char *pszObjId, PCRTASN1ALLOCATORVTABLE pAllocator);
1078
1079	/**
1080	* Compares an ASN.1 object identifier with a dotted object identifier string.
1081	*
1082	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
1083	* @param pThis The ASN.1 object identifier.
1084	* @param pszRight The dotted object identifier string.
1085	*/
1086	RTDECL(int) RTAsn1ObjId_CompareWithString(PCRTASN1OBJID pThis, const char *pszRight);
1087
1088	/**
1089	* Checks if an ASN.1 object identifier starts with the given dotted object
1090	* identifier string.
1091	*
1092	* The matching is only successful if the given string matches matches the last
1093	* component completely.
1094	*
1095	* @returns true / false.
1096	* @param pThis The ASN.1 object identifier.
1097	* @param pszStartsWith The dotted object identifier string.
1098	*/
1099	RTDECL(bool) RTAsn1ObjId_StartsWith(PCRTASN1OBJID pThis, const char *pszStartsWith);
1100
1101	RTDECL(uint8_t) RTAsn1ObjIdCountComponents(PCRTASN1OBJID pThis);
1102	RTDECL(uint32_t) RTAsn1ObjIdGetComponentsAsUInt32(PCRTASN1OBJID pThis, uint8_t iComponent);
1103	RTDECL(uint32_t) RTAsn1ObjIdGetLastComponentsAsUInt32(PCRTASN1OBJID pThis);
1104
1105	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFOBJIDS, RTASN1OBJID, RTDECL, RTAsn1SeqOfObjIds);
1106	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFOBJIDS, RTASN1OBJID, RTDECL, RTAsn1SetOfObjIds);
1107	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFOBJIDSEQS, RTASN1SEQOFOBJIDS, RTDECL, RTAsn1SetOfObjIdSeqs);
1108
1109
1110	/**
1111	* ASN.1 bit string (IPRT representation).
1112	*/
1113	typedef struct RTASN1BITSTRING
1114	{
1115	/** Core ASN.1 encoding details. */
1116	RTASN1CORE Asn1Core;
1117	/** The number of bits. */
1118	uint32_t cBits;
1119	/** The max number of bits (given at decoding / construction). */
1120	uint32_t cMaxBits;
1121	/** Pointer to the bits. */
1122	RTCPTRUNION uBits;
1123	/** Pointer to user structure encapsulated in this string, if dynamically
1124	* allocated the EncapsulatedAllocation member can be used to track it and
1125	* trigger automatic cleanup on object destruction. If EncapsulatedAllocation
1126	* is zero, any object pointed to will only be deleted. */
1127	PRTASN1CORE pEncapsulated;
1128	/** Allocation tracking structure for pEncapsulated. */
1129	RTASN1ALLOCATION EncapsulatedAllocation;
1130	} RTASN1BITSTRING;
1131	/** Pointer to the IPRT representation of an ASN.1 bit string. */
1132	typedef RTASN1BITSTRING *PRTASN1BITSTRING;
1133	/** Pointer to the const IPRT representation of an ASN.1 bit string. */
1134	typedef RTASN1BITSTRING const *PCRTASN1BITSTRING;
1135	/** The Vtable for a RTASN1BITSTRING structure. */
1136	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1BitString_Vtable;
1137
1138	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1BITSTRING, RTDECL, RTAsn1BitString, Asn1Core);
1139
1140	/**
1141	* Calculates pointer to the first bit.
1142	*
1143	* @returns Byte pointer to the first bit.
1144	* @param a_pBitString The ASN.1 bit string.
1145	*/
1146	#define RTASN1BITSTRING_GET_BIT0_PTR(a_pBitString) ( &(a_pBitString)->Asn1Core.uData.pu8[1] )
1147
1148	/**
1149	* Calculates the size in bytes.
1150	*
1151	* @returns Rounded up size in bytes.
1152	* @param a_pBitString The ASN.1 bit string.
1153	*/
1154	#define RTASN1BITSTRING_GET_BYTE_SIZE(a_pBitString) ( ((a_pBitString)->cBits + 7U) >> 3 )
1155
1156	RTDECL(int) RTAsn1BitString_DecodeAsn1Ex(PRTASN1CURSOR pCursor, uint32_t fFlags, uint32_t cMaxBits, PRTASN1BITSTRING pThis,
1157	const char *pszErrorTag);
1158	RTDECL(uint64_t) RTAsn1BitString_GetAsUInt64(PCRTASN1BITSTRING pThis);
1159	RTDECL(int) RTAsn1BitString_RefreshContent(PRTASN1BITSTRING pThis, uint32_t fFlags,
1160	PCRTASN1ALLOCATORVTABLE pAllocator, PRTERRINFO pErrInfo);
1161	RTDECL(bool) RTAsn1BitString_AreContentBitsValid(PCRTASN1BITSTRING pThis, uint32_t fFlags);
1162
1163	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFBITSTRINGS, RTASN1BITSTRING, RTDECL, RTAsn1SeqOfBitStrings);
1164	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFBITSTRINGS, RTASN1BITSTRING, RTDECL, RTAsn1SetOfBitStrings);
1165
1166
1167	/**
1168	* ASN.1 octet string (IPRT representation).
1169	*/
1170	typedef struct RTASN1OCTETSTRING
1171	{
1172	/** Core ASN.1 encoding details. */
1173	RTASN1CORE Asn1Core;
1174	/** Pointer to user structure encapsulated in this string.
1175	*
1176	* If dynamically allocated the EncapsulatedAllocation member can be used to
1177	* track it and trigger automatic cleanup on object destruction. If
1178	* EncapsulatedAllocation is zero, any object pointed to will only be
1179	* deleted. */
1180	PRTASN1CORE pEncapsulated;
1181	/** Allocation tracking structure for pEncapsulated. */
1182	RTASN1ALLOCATION EncapsulatedAllocation;
1183	} RTASN1OCTETSTRING;
1184	/** Pointer to the IPRT representation of an ASN.1 octet string. */
1185	typedef RTASN1OCTETSTRING *PRTASN1OCTETSTRING;
1186	/** Pointer to the const IPRT representation of an ASN.1 octet string. */
1187	typedef RTASN1OCTETSTRING const *PCRTASN1OCTETSTRING;
1188	/** The Vtable for a RTASN1OCTETSTRING structure. */
1189	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1OctetString_Vtable;
1190
1191	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1OCTETSTRING, RTDECL, RTAsn1OctetString, Asn1Core);
1192
1193	RTDECL(bool) RTAsn1OctetString_AreContentBytesValid(PCRTASN1OCTETSTRING pThis, uint32_t fFlags);
1194	RTDECL(int) RTAsn1OctetString_RefreshContent(PRTASN1OCTETSTRING pThis, uint32_t fFlags,
1195	PCRTASN1ALLOCATORVTABLE pAllocator, PRTERRINFO pErrInfo);
1196
1197	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFOCTETSTRINGS, RTASN1OCTETSTRING, RTDECL, RTAsn1SeqOfOctetStrings);
1198	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFOCTETSTRINGS, RTASN1OCTETSTRING, RTDECL, RTAsn1SetOfOctetStrings);
1199
1200
1201	/**
1202	* ASN.1 string (IPRT representation).
1203	* All char string types except 'character string (29)'.
1204	*/
1205	typedef struct RTASN1STRING
1206	{
1207	/** Core ASN.1 encoding details. */
1208	RTASN1CORE Asn1Core;
1209	/** Allocation tracking for pszUtf8. */
1210	RTASN1ALLOCATION Allocation;
1211	/** If conversion to UTF-8 was requested, we cache that here. */
1212	char const *pszUtf8;
1213	/** The length (chars, not code points) of the above UTF-8 string if
1214	* present. */
1215	uint32_t cchUtf8;
1216	} RTASN1STRING;
1217	/** Pointer to the IPRT representation of an ASN.1 string. */
1218	typedef RTASN1STRING *PRTASN1STRING;
1219	/** Pointer to the const IPRT representation of an ASN.1 string. */
1220	typedef RTASN1STRING const *PCRTASN1STRING;
1221	/** The Vtable for a RTASN1STRING structure. */
1222	extern RTDATADECL(RTASN1COREVTABLE const) g_RTAsn1String_Vtable;
1223
1224	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1String, Asn1Core);
1225
1226	/** @name String type predicate macros.
1227	* @{ */
1228	#define RTASN1STRING_IS_NUMERIC(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_NUMERIC_STRING )
1229	#define RTASN1STRING_IS_PRINTABLE(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_PRINTABLE_STRING )
1230	#define RTASN1STRING_IS_T61(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_T61_STRING )
1231	#define RTASN1STRING_IS_VIDEOTEX(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_VIDEOTEX_STRING )
1232	#define RTASN1STRING_IS_VISIBLE(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_VISIBLE_STRING )
1233	#define RTASN1STRING_IS_IA5(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_IA5_STRING )
1234	#define RTASN1STRING_IS_GRAPHIC(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_GRAPHIC_STRING )
1235	#define RTASN1STRING_IS_GENERAL(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_GENERAL_STRING )
1236	/** UTF-8. */
1237	#define RTASN1STRING_IS_UTF8(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_UTF8_STRING )
1238	/** UCS-2. */
1239	#define RTASN1STRING_IS_BMP(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_BMP_STRING )
1240	/** UCS-4. */
1241	#define RTASN1STRING_IS_UNIVERSAL(a_pAsn1String) ( RTASN1CORE_GET_TAG(&(a_pAsn1String)->Asn1Core) == ASN1_TAG_UNIVERSAL_STRING )
1242	/** @} */
1243
1244	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1NumericString, Asn1Core);
1245	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1PrintableString, Asn1Core);
1246	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1T61String, Asn1Core);
1247	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1VideoTexString, Asn1Core);
1248	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1VisibleString, Asn1Core);
1249	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1Ia5String, Asn1Core);
1250	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1GraphicString, Asn1Core);
1251	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1GeneralString, Asn1Core);
1252	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1Utf8String, Asn1Core);
1253	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1BmpString, Asn1Core);
1254	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1STRING, RTDECL, RTAsn1UniversalString, Asn1Core);
1255
1256	RTDECL(int) RTAsn1String_InitWithValue(PRTASN1STRING pThis, const char *pszUtf8Value, PCRTASN1ALLOCATORVTABLE pAllocator);
1257	RTDECL(int) RTAsn1String_InitEx(PRTASN1STRING pThis, uint32_t uTag, void const *pvValue, size_t cbValue,
1258	PCRTASN1ALLOCATORVTABLE pAllocator);
1259
1260	/**
1261	* Compares two strings values, extended version.
1262	*
1263	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
1264	* @param pLeft The first string.
1265	* @param pRight The second string.
1266	* @param fTypeToo Set if the string types must match, false if
1267	* not.
1268	*/
1269	RTDECL(int) RTAsn1String_CompareEx(PCRTASN1STRING pLeft, PCRTASN1STRING pRight, bool fTypeToo);
1270	RTDECL(int) RTAsn1String_CompareValues(PCRTASN1STRING pLeft, PCRTASN1STRING pRight);
1271
1272	/**
1273	* Compares a ASN.1 string object with an UTF-8 string.
1274	*
1275	* @returns 0 if equal, -1 if @a pThis is smaller, 1 if @a pThis is larger.
1276	* @param pThis The ASN.1 string object.
1277	* @param pszString The UTF-8 string.
1278	* @param cchString The length of @a pszString, or RTSTR_MAX.
1279	*/
1280	RTDECL(int) RTAsn1String_CompareWithString(PCRTASN1STRING pThis, const char *pszString, size_t cchString);
1281
1282	/**
1283	* Queries the UTF-8 length of an ASN.1 string object.
1284	*
1285	* This differs from RTAsn1String_QueryUtf8 in that it won't need to allocate
1286	* memory for the converted string, but just calculates the length.
1287	*
1288	* @returns IPRT status code.
1289	* @param pThis The ASN.1 string object.
1290	* @param pcch Where to return the string length.
1291	*/
1292	RTDECL(int) RTAsn1String_QueryUtf8Len(PCRTASN1STRING pThis, size_t *pcch);
1293
1294	/**
1295	* Queries the UTF-8 string for an ASN.1 string object.
1296	*
1297	* This may fail as it may require memory to be allocated for storing the
1298	* string.
1299	*
1300	* @returns IPRT status code.
1301	* @param pString The ASN.1 string object. This is a const
1302	* parameter for making life easier on the caller,
1303	* however be aware that the object may be modified
1304	* by this call!
1305	* @param ppsz Where to return the pointer to the UTF-8 string.
1306	* Optional.
1307	* @param pcch Where to return the length (in 8-bit chars) to
1308	* of the UTF-8 string. Optional.
1309	*/
1310	RTDECL(int) RTAsn1String_QueryUtf8(PCRTASN1STRING pString, const char *ppsz, size_t pcch);
1311	RTDECL(int) RTAsn1String_RecodeAsUtf8(PRTASN1STRING pThis, PCRTASN1ALLOCATORVTABLE pAllocator);
1312
1313	RTASN1_IMPL_GEN_SEQ_OF_TYPEDEFS_AND_PROTOS(RTASN1SEQOFSTRINGS, RTASN1STRING, RTDECL, RTAsn1SeqOfStrings);
1314	RTASN1_IMPL_GEN_SET_OF_TYPEDEFS_AND_PROTOS(RTASN1SETOFSTRINGS, RTASN1STRING, RTDECL, RTAsn1SetOfStrings);
1315
1316
1317
1318	/**
1319	* ASN.1 generic context specific tag (IPRT representation).
1320	*
1321	* Normally used to tag something that's optional, version specific or such.
1322	*
1323	* For the purpose of documenting the format with typedefs as well as possibly
1324	* making it a little more type safe, there's a set of typedefs for the most
1325	* commonly used tag values defined. These typedefs have are identical to
1326	* RTASN1CONTEXTTAG, except from the C++ type system point of view.
1327	*/
1328	typedef struct RTASN1CONTEXTTAG
1329	{
1330	/** Core ASN.1 encoding details. */
1331	RTASN1CORE Asn1Core;
1332	} RTASN1CONTEXTTAG;
1333	/** Pointer to an ASN.1 context tag (IPRT thing). */
1334	typedef RTASN1CONTEXTTAG *PRTASN1CONTEXTTAG;
1335	/** Pointer to a const ASN.1 context tag (IPRT thing). */
1336	typedef RTASN1CONTEXTTAG const *PCRTASN1CONTEXTTAG;
1337
1338	RTDECL(int) RTAsn1ContextTagN_Init(PRTASN1CONTEXTTAG pThis, uint32_t uTag, PCRTASN1COREVTABLE pVtable);
1339	RTDECL(int) RTAsn1ContextTagN_Clone(PRTASN1CONTEXTTAG pThis, PCRTASN1CONTEXTTAG pSrc, uint32_t uTag);
1340
1341
1342	/** @internal */
1343	#define RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(a_uTag) \
1344	typedef struct RT_CONCAT(RTASN1CONTEXTTAG,a_uTag) { RTASN1CORE Asn1Core; } RT_CONCAT(RTASN1CONTEXTTAG,a_uTag); \
1345	typedef RT_CONCAT(RTASN1CONTEXTTAG,a_uTag) *RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag); \
1346	DECLINLINE(int) RT_CONCAT3(RTAsn1ContextTag,a_uTag,_Init)(RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag) pThis, \
1347	PCRTASN1COREVTABLE pVtable, PCRTASN1ALLOCATORVTABLE pAllocator) \
1348	{ \
1349	NOREF(pAllocator); \
1350	return RTAsn1ContextTagN_Init((PRTASN1CONTEXTTAG)pThis, a_uTag, pVtable); \
1351	} \
1352	DECLINLINE(int) RT_CONCAT3(RTAsn1ContextTag,a_uTag,_Clone)(RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag) pThis, \
1353	RT_CONCAT(RTASN1CONTEXTTAG,a_uTag) const *pSrc) \
1354	{ return RTAsn1ContextTagN_Clone((PRTASN1CONTEXTTAG)pThis, (PCRTASN1CONTEXTTAG)pSrc, a_uTag); } \
1355	typedef RT_CONCAT(RTASN1CONTEXTTAG,a_uTag) const *RT_CONCAT(PCRTASN1CONTEXTTAG,a_uTag)
1356	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(0);
1357	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(1);
1358	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(2);
1359	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(3);
1360	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(4);
1361	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(5);
1362	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(6);
1363	RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE(7);
1364	#undef RTASN1CONTEXTTAG_DO_TYPEDEF_AND_INLINE
1365
1366	/** Helper for comparing optional context tags.
1367	* This will return if both are not present or if their precense differs.
1368	* @internal */
1369	#define RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, a_uTag) \
1370	do { \
1371	/* type checks */ \
1372	RT_CONCAT(PCRTASN1CONTEXTTAG,a_uTag) const pMyLeftInternal = (a_pLeft); \
1373	RT_CONCAT(PCRTASN1CONTEXTTAG,a_uTag) const pMyRightInternal = (a_pRight); \
1374	(a_iDiff) = (int)RTASN1CORE_IS_PRESENT(&pMyLeftInternal->Asn1Core) \
1375	- (int)RTASN1CORE_IS_PRESENT(&pMyRightInternal->Asn1Core); \
1376	if ((a_iDiff) \|\| !RTASN1CORE_IS_PRESENT(&pMyLeftInternal->Asn1Core)) return iDiff; \
1377	} while (0)
1378
1379	/** @name Helpers for comparing optional context tags.
1380	* This will return if both are not present or if their precense differs.
1381	* @{ */
1382	#define RTASN1CONTEXTTAG0_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 0)
1383	#define RTASN1CONTEXTTAG1_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 1)
1384	#define RTASN1CONTEXTTAG2_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 2)
1385	#define RTASN1CONTEXTTAG3_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 3)
1386	#define RTASN1CONTEXTTAG4_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 4)
1387	#define RTASN1CONTEXTTAG5_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 5)
1388	#define RTASN1CONTEXTTAG6_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 6)
1389	#define RTASN1CONTEXTTAG7_COMPARE_PRESENT_RETURN(a_iDiff, a_pLeft, a_pRight) RTASN1CONTEXTTAG_COMPARE_PRESENT_RETURN_INTERNAL(a_iDiff, a_pLeft, a_pRight, 7)
1390	/** @} */
1391
1392
1393	/**
1394	* Type information for dynamically bits (see RTASN1DYNTYPE).
1395	*/
1396	typedef enum RTASN1TYPE
1397	{
1398	/** Not present. */
1399	RTASN1TYPE_NOT_PRESENT = 0,
1400	/** Generic ASN.1 for unknown tag/class. */
1401	RTASN1TYPE_CORE,
1402	/** ASN.1 NULL. */
1403	RTASN1TYPE_NULL,
1404	/** ASN.1 integer. */
1405	RTASN1TYPE_INTEGER,
1406	/** ASN.1 boolean. */
1407	RTASN1TYPE_BOOLEAN,
1408	/** ASN.1 character string. */
1409	RTASN1TYPE_STRING,
1410	/** ASN.1 octet string. */
1411	RTASN1TYPE_OCTET_STRING,
1412	/** ASN.1 bite string. */
1413	RTASN1TYPE_BIT_STRING,
1414	/** ASN.1 UTC or Generalize time. */
1415	RTASN1TYPE_TIME,
1416	#if 0
1417	/** ASN.1 sequence core. */
1418	RTASN1TYPE_SEQUENCE_CORE,
1419	/** ASN.1 set core. */
1420	RTASN1TYPE_SET_CORE,
1421	#endif
1422	/** ASN.1 object identifier. */
1423	RTASN1TYPE_OBJID,
1424	/** End of valid types. */
1425	RTASN1TYPE_END,
1426	/** Type size hack. */
1427	RTASN1TYPE_32BIT_HACK = 0x7fffffff
1428	} RTASN1TYPE;
1429
1430
1431	/**
1432	* ASN.1 dynamic type record.
1433	*/
1434	typedef struct RTASN1DYNTYPE
1435	{
1436	/** Alternative interpretation provided by a user.
1437	* Before destroying this object, the user must explicitly free this and set
1438	* it to NULL, otherwise there will be memory leaks. */
1439	PRTASN1CORE pUser;
1440	/** The type of data we've got here. */
1441	RTASN1TYPE enmType;
1442	/** Union with data of the type dictated by enmType. */
1443	union
1444	{
1445	/** RTASN1TYPE_CORE. */
1446	RTASN1CORE Core;
1447	/** RTASN1TYPE_NULL. */
1448	RTASN1NULL Asn1Null;
1449	/** RTASN1TYPE_INTEGER. */
1450	RTASN1INTEGER Integer;
1451	/** RTASN1TYPE_BOOLEAN. */
1452	RTASN1BOOLEAN Boolean;
1453	/** RTASN1TYPE_STRING. */
1454	RTASN1STRING String;
1455	/** RTASN1TYPE_OCTET_STRING. */
1456	RTASN1OCTETSTRING OctetString;
1457	/** RTASN1TYPE_BIT_STRING. */
1458	RTASN1BITSTRING BitString;
1459	/** RTASN1TYPE_TIME. */
1460	RTASN1TIME Time;
1461	#if 0
1462	/** RTASN1TYPE_SEQUENCE_CORE. */
1463	RTASN1SEQUENCECORE SeqCore;
1464	/** RTASN1TYPE_SET_CORE. */
1465	RTASN1SETCORE SetCore;
1466	#endif
1467	/** RTASN1TYPE_OBJID. */
1468	RTASN1OBJID ObjId;
1469	} u;
1470	} RTASN1DYNTYPE;
1471	/** Pointer to an ASN.1 dynamic type record. */
1472	typedef RTASN1DYNTYPE *PRTASN1DYNTYPE;
1473	/** Pointer to a const ASN.1 dynamic type record. */
1474	typedef RTASN1DYNTYPE const *PCRTASN1DYNTYPE;
1475	RTASN1TYPE_STANDARD_PROTOTYPES(RTASN1DYNTYPE, RTDECL, RTAsn1DynType, u.Core);
1476
1477
1478	/** @name Virtual Method Table Based API
1479	* @{ */
1480	/**
1481	* Calls the destructor of the ASN.1 object.
1482	*
1483	* @param pThisCore The IPRT representation of an ASN.1 object.
1484	*/
1485	RTDECL(void) RTAsn1VtDelete(PRTASN1CORE pThisCore);
1486
1487	/**
1488	* Deep enumeration of all descendants.
1489	*
1490	* @returns IPRT status code, any non VINF_SUCCESS value stems from pfnCallback.
1491	* @param pThisCore Pointer to the ASN.1 core to enumerate members of.
1492	* @param pfnCallback The callback.
1493	* @param uDepth The depth of this object. Children are at +1.
1494	* @param pvUser Callback user argument.
1495	* @param fDepthFirst When set, recurse into child objects before calling
1496	* pfnCallback on then. When clear, the child object
1497	* is first
1498	*/
1499	RTDECL(int) RTAsn1VtDeepEnum(PRTASN1CORE pThisCore, bool fDepthFirst, uint32_t uDepth,
1500	PFNRTASN1ENUMCALLBACK pfnCallback, void *pvUser);
1501
1502	/**
1503	* Clones @a pSrcCore onto @a pThisCore.
1504	*
1505	* The caller must be sure that @a pSrcCore and @a pThisCore are of the same
1506	* types.
1507	*
1508	* @returns IPRT status code.
1509	* @param pThisCore Pointer to the ASN.1 core to clone onto. This shall
1510	* be uninitialized.
1511	* @param pSrcCore Pointer to the ASN.1 core to clone.
1512	* @param pAllocator The allocator to use.
1513	*/
1514	RTDECL(int) RTAsn1VtClone(PRTASN1CORE pThisCore, PRTASN1CORE pSrcCore, PCRTASN1ALLOCATORVTABLE pAllocator);
1515
1516	/**
1517	* Compares two objects.
1518	*
1519	* @returns 0 if equal, -1 if @a pLeft is smaller, 1 if @a pLeft is larger.
1520	* @param pLeftCore Pointer to the ASN.1 core of the left side object.
1521	* @param pRightCore Pointer to the ASN.1 core of the right side object.
1522	*/
1523	RTDECL(int) RTAsn1VtCompare(PCRTASN1CORE pLeftCore, PCRTASN1CORE pRightCore);
1524
1525	/**
1526	* Check sanity.
1527	*
1528	* A primary criteria is that the object is present and initialized.
1529	*
1530	* @returns IPRT status code.
1531	* @param pThisCore Pointer to the ASN.1 core of the object to check out.
1532	* @param fFlags See RTASN1_CHECK_SANITY_F_XXX.
1533	* @param pErrInfo Where to return additional error details. Optional.
1534	* @param pszErrorTag Tag for the additional error details.
1535	*/
1536	RTDECL(int) RTAsn1VtCheckSanity(PCRTASN1CORE pThisCore, uint32_t fFlags,
1537	PRTERRINFO pErrInfo, const char *pszErrorTag);
1538	/** @} */
1539
1540
1541	/** @defgroup rp_asn1_encode RTAsn1Encode - ASN.1 Encoding
1542	* @{ */
1543
1544	/** @name RTASN1ENCODE_F_XXX
1545	* @{ */
1546	/** Use distinguished encoding rules (DER) to encode the object. */
1547	#define RTASN1ENCODE_F_DER UINT32_C(0x00000001)
1548	/** Use base encoding rules (BER) to encode the object.
1549	* This is currently the same as DER for practical reasons. */
1550	#define RTASN1ENCODE_F_BER RTASN1ENCODE_F_DER
1551	/** Mask of valid encoding rules. */
1552	#define RTASN1ENCODE_F_RULE_MASK UINT32_C(0x00000007)
1553	/** @} */
1554
1555
1556	/**
1557	* Recalculates cbHdr of and ASN.1 object.
1558	*
1559	* @returns IPRT status code.
1560	* @retval VINF_ASN1_NOT_ENCODED if the header size is zero (default value,
1561	* whatever).
1562	* @param pAsn1Core The object in question.
1563	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1564	* flags. Must include the encoding type.
1565	* @param pErrInfo Extended error info. Optional.
1566	*/
1567	RTDECL(int) RTAsn1EncodeRecalcHdrSize(PRTASN1CORE pAsn1Core, uint32_t fFlags, PRTERRINFO pErrInfo);
1568
1569	/**
1570	* Prepares the ASN.1 structure for encoding.
1571	*
1572	* The preparations is mainly calculating accurate object size, but may also
1573	* involve operations like recoding internal UTF-8 strings to the actual ASN.1
1574	* format and other things that may require memory to allocated/reallocated.
1575	*
1576	* @returns IPRT status code
1577	* @param pRoot The root of the ASN.1 object tree to encode.
1578	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1579	* flags. Must include the encoding type.
1580	* @param pcbEncoded Where to return the encoded size. Optional.
1581	* @param pErrInfo Where to store extended error information.
1582	* Optional.
1583	*/
1584	RTDECL(int) RTAsn1EncodePrepare(PRTASN1CORE pRoot, uint32_t fFlags, uint32_t *pcbEncoded, PRTERRINFO pErrInfo);
1585
1586	/**
1587	* Encodes and writes the header of an ASN.1 object.
1588	*
1589	* @returns IPRT status code.
1590	* @retval VINF_ASN1_NOT_ENCODED if nothing was written (default value,
1591	* whatever).
1592	* @param pAsn1Core The object in question.
1593	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1594	* flags. Must include the encoding type.
1595	* @param pfnWriter The output writer callback.
1596	* @param pvUser The user argument to pass to @a pfnWriter.
1597	* @param pErrInfo Where to store extended error information.
1598	* Optional.
1599	*/
1600	RTDECL(int) RTAsn1EncodeWriteHeader(PCRTASN1CORE pAsn1Core, uint32_t fFlags, FNRTASN1ENCODEWRITER pfnWriter, void *pvUser,
1601	PRTERRINFO pErrInfo);
1602
1603	/**
1604	* Encodes and writes an ASN.1 object.
1605	*
1606	* @returns IPRT status code
1607	* @param pRoot The root of the ASN.1 object tree to encode.
1608	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1609	* flags. Must include the encoding type.
1610	* @param pfnWriter The output writer callback.
1611	* @param pvUser The user argument to pass to @a pfnWriter.
1612	* @param pErrInfo Where to store extended error information.
1613	* Optional.
1614	*/
1615	RTDECL(int) RTAsn1EncodeWrite(PCRTASN1CORE pRoot, uint32_t fFlags, FNRTASN1ENCODEWRITER pfnWriter, void *pvUser,
1616	PRTERRINFO pErrInfo);
1617
1618	/**
1619	* Encodes and writes an ASN.1 object into a caller allocated memory buffer.
1620	*
1621	* @returns IPRT status code
1622	* @param pRoot The root of the ASN.1 object tree to encode.
1623	* @param fFlags Valid combination of the RTASN1ENCODE_F_XXX
1624	* flags. Must include the encoding type.
1625	* @param pvBuf The output buffer.
1626	* @param cbBuf The buffer size. This should have the size
1627	* returned by RTAsn1EncodePrepare().
1628	* @param pErrInfo Where to store extended error information.
1629	* Optional.
1630	*/
1631	RTDECL(int) RTAsn1EncodeToBuffer(PCRTASN1CORE pRoot, uint32_t fFlags, void *pvBuf, size_t cbBuf, PRTERRINFO pErrInfo);
1632
1633	/** @} */
1634
1635
1636
1637	/** @defgroup rp_asn1_cursor RTAsn1Cursor - BER, DER, and CER cursor
1638	* @{ */
1639
1640	/**
1641	* ASN.1 decoder byte cursor.
1642	*/
1643	typedef struct RTASN1CURSOR
1644	{
1645	/** Pointer to the current (next) byte. */
1646	uint8_t const *pbCur;
1647	/** Number of bytes left to decode. */
1648	uint32_t cbLeft;
1649	/** RTASN1CURSOR_FLAGS_XXX. */
1650	uint8_t fFlags;
1651	/** The cursor depth. */
1652	uint8_t cDepth;
1653	/** Two bytes reserved for future tricks. */
1654	uint8_t abReserved[2];
1655	/** Pointer to the primary cursor. */
1656	struct RTASN1CURSORPRIMARY *pPrimary;
1657	/** Pointer to the parent cursor. */
1658	struct RTASN1CURSOR *pUp;
1659	/** The error tag for this cursor level. */
1660	const char *pszErrorTag;
1661	} RTASN1CURSOR;
1662
1663	/** @name RTASN1CURSOR_FLAGS_XXX - Cursor flags.
1664	* @{ */
1665	/** Enforce DER rules. */
1666	#define RTASN1CURSOR_FLAGS_DER RT_BIT(1)
1667	/** Enforce CER rules. */
1668	#define RTASN1CURSOR_FLAGS_CER RT_BIT(2)
1669	/** Pending indefinite length encoding. */
1670	#define RTASN1CURSOR_FLAGS_INDEFINITE_LENGTH RT_BIT(3)
1671	/** @} */
1672
1673
1674	typedef struct RTASN1CURSORPRIMARY
1675	{
1676	/** The normal cursor bits. */
1677	RTASN1CURSOR Cursor;
1678	/** For error reporting. */
1679	PRTERRINFO pErrInfo;
1680	/** The allocator virtual method table. */
1681	PCRTASN1ALLOCATORVTABLE pAllocator;
1682	/** Pointer to the first byte. Useful for calculating offsets. */
1683	uint8_t const *pbFirst;
1684	} RTASN1CURSORPRIMARY;
1685	typedef RTASN1CURSORPRIMARY *PRTASN1CURSORPRIMARY;
1686
1687
1688	/**
1689	* Initializes a primary cursor.
1690	*
1691	* The primary cursor is special in that it stores information shared with the
1692	* sub-cursors created by methods like RTAsn1CursorGetContextTagNCursor and
1693	* RTAsn1CursorGetSequenceCursor. Even if just sharing a few items at present,
1694	* it still important to save every possible byte since stack space is scarce in
1695	* some of the execution environments.
1696	*
1697	* @returns Pointer to pCursor->Cursor.
1698	* @param pPrimaryCursor The primary cursor structure to initialize.
1699	* @param pvFirst The first byte to decode.
1700	* @param cb The number of bytes to decode.
1701	* @param pErrInfo Where to store error information.
1702	* @param pAllocator The allocator to use.
1703	* @param fFlags RTASN1CURSOR_FLAGS_XXX.
1704	* @param pszErrorTag The primary error tag.
1705	*/
1706	RTDECL(PRTASN1CURSOR) RTAsn1CursorInitPrimary(PRTASN1CURSORPRIMARY pPrimaryCursor, void const *pvFirst, uint32_t cb,
1707	PRTERRINFO pErrInfo, PCRTASN1ALLOCATORVTABLE pAllocator, uint32_t fFlags,
1708	const char *pszErrorTag);
1709
1710	RTDECL(int) RTAsn1CursorInitSub(PRTASN1CURSOR pParent, uint32_t cb, PRTASN1CURSOR pChild, const char *pszErrorTag);
1711
1712	/**
1713	* Initialize a sub-cursor for traversing the content of an ASN.1 object.
1714	*
1715	* @returns IPRT status code.
1716	* @param pParent The parent cursor.
1717	* @param pAsn1Core The ASN.1 object which content we should
1718	* traverse with the sub-cursor.
1719	* @param pChild The sub-cursor to initialize.
1720	* @param pszErrorTag The error tag of the sub-cursor.
1721	*/
1722	RTDECL(int) RTAsn1CursorInitSubFromCore(PRTASN1CURSOR pParent, PRTASN1CORE pAsn1Core,
1723	PRTASN1CURSOR pChild, const char *pszErrorTag);
1724
1725	/**
1726	* Initalizes the an allocation structure prior to making an allocation.
1727	*
1728	* To try unify and optimize memory managment for decoding and in-memory
1729	* construction of ASN.1 objects, each allocation has an allocation structure
1730	* associated with it. This stores the allocator and keep statistics for
1731	* optimizing resizable allocations.
1732	*
1733	* @returns Pointer to the allocator info (for call in alloc parameter).
1734	* @param pCursor The cursor.
1735	* @param pAllocation The allocation structure to initialize.
1736	*/
1737	RTDECL(PRTASN1ALLOCATION) RTAsn1CursorInitAllocation(PRTASN1CURSOR pCursor, PRTASN1ALLOCATION pAllocation);
1738
1739	/**
1740	* Initalizes the an array allocation structure prior to making an allocation.
1741	*
1742	* This is a special case of RTAsn1CursorInitAllocation. We store a little bit
1743	* more detail here in order to optimize growing and shrinking of arrays.
1744	*
1745	* @returns Pointer to the allocator info (for call in alloc parameter).
1746	* @param pCursor The cursor.
1747	* @param pAllocation The allocation structure to initialize.
1748	* @param cbEntry The array entry size.
1749	*/
1750	RTDECL(PRTASN1ARRAYALLOCATION) RTAsn1CursorInitArrayAllocation(PRTASN1CURSOR pCursor, PRTASN1ARRAYALLOCATION pAllocation,
1751	size_t cbEntry);
1752
1753	/**
1754	* Wrapper around RTErrInfoSetV.
1755	*
1756	* @returns @a rc
1757	* @param pCursor The cursor.
1758	* @param rc The return code to return.
1759	* @param pszMsg Message format string.
1760	* @param ... Format arguments.
1761	*/
1762	RTDECL(int) RTAsn1CursorSetInfo(PRTASN1CURSOR pCursor, int rc, const char *pszMsg, ...) RT_IPRT_FORMAT_ATTR(3, 4);
1763
1764	/**
1765	* Wrapper around RTErrInfoSetV.
1766	*
1767	* @returns @a rc
1768	* @param pCursor The cursor.
1769	* @param rc The return code to return.
1770	* @param pszMsg Message format string.
1771	* @param va Format arguments.
1772	*/
1773	RTDECL(int) RTAsn1CursorSetInfoV(PRTASN1CURSOR pCursor, int rc, const char *pszMsg, va_list va) RT_IPRT_FORMAT_ATTR(3, 0);
1774
1775	/**
1776	* Checks that we've reached the end of the data for the cursor.
1777	*
1778	* This differs from RTAsn1CursorCheckEnd in that it does not consider the end
1779	* an error and therefore leaves the error buffer alone.
1780	*
1781	* @returns True if end, otherwise false.
1782	* @param pCursor The cursor we're decoding from.
1783	*/
1784	RTDECL(bool) RTAsn1CursorIsEnd(PRTASN1CURSOR pCursor);
1785
1786	/**
1787	* Checks that we've reached the end of the data for the cursor.
1788	*
1789	* @returns IPRT status code.
1790	* @param pCursor The cursor we're decoding from.
1791	*/
1792	RTDECL(int) RTAsn1CursorCheckEnd(PRTASN1CURSOR pCursor);
1793
1794	/**
1795	* Specialization of RTAsn1CursorCheckEnd for handling indefinite length sequences.
1796	*
1797	* Makes sure we've reached the end of the data for the cursor, and in case of a
1798	* an indefinite length sequence it may adjust sequence length and the parent
1799	* cursor.
1800	*
1801	* @returns IPRT status code.
1802	* @param pCursor The cursor we're decoding from.
1803	* @param pSeqCore The sequence core record.
1804	* @sa RTAsn1CursorCheckSetEnd, RTAsn1CursorCheckOctStrEnd,
1805	* RTAsn1CursorCheckEnd
1806	*/
1807	RTDECL(int) RTAsn1CursorCheckSeqEnd(PRTASN1CURSOR pCursor, PRTASN1SEQUENCECORE pSeqCore);
1808
1809	/**
1810	* Specialization of RTAsn1CursorCheckEnd for handling indefinite length sets.
1811	*
1812	* Makes sure we've reached the end of the data for the cursor, and in case of a
1813	* an indefinite length sets it may adjust set length and the parent cursor.
1814	*
1815	* @returns IPRT status code.
1816	* @param pCursor The cursor we're decoding from.
1817	* @param pSetCore The set core record.
1818	* @sa RTAsn1CursorCheckSeqEnd, RTAsn1CursorCheckOctStrEnd,
1819	* RTAsn1CursorCheckEnd
1820	*/
1821	RTDECL(int) RTAsn1CursorCheckSetEnd(PRTASN1CURSOR pCursor, PRTASN1SETCORE pSetCore);
1822
1823	/**
1824	* Specialization of RTAsn1CursorCheckEnd for handling indefinite length
1825	* constructed octet strings.
1826	*
1827	* This function must used when parsing the content of an octet string, like
1828	* for example the Content of a PKCS\#7 ContentInfo structure. It makes sure
1829	* we've reached the end of the data for the cursor, and in case of a an
1830	* indefinite length sets it may adjust set length and the parent cursor.
1831	*
1832	* @returns IPRT status code.
1833	* @param pCursor The cursor we're decoding from.
1834	* @param pOctetString The octet string.
1835	* @sa RTAsn1CursorCheckSeqEnd, RTAsn1CursorCheckSetEnd,
1836	* RTAsn1CursorCheckEnd
1837	*/
1838	RTDECL(int) RTAsn1CursorCheckOctStrEnd(PRTASN1CURSOR pCursor, PRTASN1OCTETSTRING pOctetString);
1839
1840
1841	/**
1842	* Skips a given number of bytes.
1843	*
1844	* @returns @a pCursor
1845	* @param pCursor The cursor.
1846	* @param cb The number of bytes to skip.
1847	* @internal
1848	*/
1849	DECLINLINE(PRTASN1CURSOR) RTAsn1CursorSkip(PRTASN1CURSOR pCursor, uint32_t cb)
1850	{
1851	if (cb <= pCursor->cbLeft)
1852	{
1853	pCursor->cbLeft -= cb;
1854	pCursor->pbCur += cb;
1855	}
1856	else
1857	{
1858	pCursor->pbCur += pCursor->cbLeft;
1859	pCursor->cbLeft = 0;
1860	}
1861
1862	return pCursor;
1863	}
1864
1865	/**
1866	* Low-level function for reading an ASN.1 header.
1867	*
1868	* @returns IPRT status code.
1869	* @param pCursor The cursor we're decoding from.
1870	* @param pAsn1Core The output object core.
1871	* @param pszErrorTag Error tag.
1872	* @internal
1873	*/
1874	RTDECL(int) RTAsn1CursorReadHdr(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core, const char *pszErrorTag);
1875
1876	/**
1877	* Common helper for simple tag matching.
1878	*
1879	* @returns IPRT status code.
1880	* @param pCursor The cursor (for error reporting).
1881	* @param pAsn1Core The ASN.1 core structure.
1882	* @param uTag The expected tag.
1883	* @param fClass The expected class.
1884	* @param fString Set if it's a string type that shall follow
1885	* special CER and DER rules wrt to constructed and
1886	* primitive encoding.
1887	* @param fFlags The RTASN1CURSOR_GET_F_XXX flags.
1888	* @param pszErrorTag The error tag.
1889	* @param pszWhat The type/whatever name.
1890	*/
1891	RTDECL(int) RTAsn1CursorMatchTagClassFlagsEx(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core, uint32_t uTag, uint32_t fClass,
1892	bool fString, uint32_t fFlags, const char pszErrorTag, const char pszWhat);
1893
1894	/**
1895	* Common helper for simple tag matching.
1896	*
1897	* @returns IPRT status code.
1898	* @param pCursor The cursor (for error reporting).
1899	* @param pAsn1Core The ASN.1 core structure.
1900	* @param uTag The expected tag.
1901	* @param fClass The expected class.
1902	* @param fFlags The RTASN1CURSOR_GET_F_XXX flags.
1903	* @param pszErrorTag The error tag.
1904	* @param pszWhat The type/whatever name.
1905	* @internal
1906	*/
1907	DECLINLINE(int) RTAsn1CursorMatchTagClassFlags(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core, uint32_t uTag, uint32_t fClass,
1908	uint32_t fFlags, const char pszErrorTag, const char pszWhat)
1909	{
1910	if (pAsn1Core->uTag == uTag && pAsn1Core->fClass == fClass)
1911	return VINF_SUCCESS;
1912	return RTAsn1CursorMatchTagClassFlagsEx(pCursor, pAsn1Core, uTag, fClass, false /fString/, fFlags, pszErrorTag, pszWhat);
1913	}
1914
1915
1916	/**
1917	* Common helper for simple tag matching for strings.
1918	*
1919	* Check string encoding considerations.
1920	*
1921	* @returns IPRT status code.
1922	* @param pCursor The cursor (for error reporting).
1923	* @param pAsn1Core The ASN.1 core structure.
1924	* @param uTag The expected tag.
1925	* @param fClass The expected class.
1926	* @param fFlags The RTASN1CURSOR_GET_F_XXX flags.
1927	* @param pszErrorTag The error tag.
1928	* @param pszWhat The type/whatever name.
1929	* @internal
1930	*/
1931	DECLINLINE(int) RTAsn1CursorMatchTagClassFlagsString(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core, uint32_t uTag, uint32_t fClass,
1932	uint32_t fFlags, const char pszErrorTag, const char pszWhat)
1933	{
1934	if (pAsn1Core->uTag == uTag && pAsn1Core->fClass == fClass)
1935	return VINF_SUCCESS;
1936	return RTAsn1CursorMatchTagClassFlagsEx(pCursor, pAsn1Core, uTag, fClass, true /fString/, fFlags, pszErrorTag, pszWhat);
1937	}
1938
1939
1940
1941	/** @name RTASN1CURSOR_GET_F_XXX - Common flags for all the getters.
1942	* @{ */
1943	/** Used for decoding objects with implicit tags assigned to them. This only
1944	* works when calling getters with a unambigious types. */
1945	#define RTASN1CURSOR_GET_F_IMPLICIT RT_BIT_32(0)
1946	/** @} */
1947
1948	/**
1949	* Read ANY object.
1950	*
1951	* @returns IPRT status code.
1952	* @param pCursor The cursor we're decoding from.
1953	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1954	* @param pAsn1Core The output object core.
1955	* @param pszErrorTag Error tag.
1956	*/
1957	RTDECL(int) RTAsn1CursorGetCore(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1CORE pAsn1Core, const char *pszErrorTag);
1958
1959	/**
1960	* Read a NULL object.
1961	*
1962	* @returns IPRT status code.
1963	* @param pCursor The cursor we're decoding from.
1964	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1965	* @param pNull The output NULL object.
1966	* @param pszErrorTag Error tag.
1967	*/
1968	RTDECL(int) RTAsn1CursorGetNull(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1NULL pNull, const char *pszErrorTag);
1969
1970	/**
1971	* Read an INTEGER object.
1972	*
1973	* @returns IPRT status code.
1974	* @param pCursor The cursor we're decoding from.
1975	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1976	* @param pInteger The output integer object.
1977	* @param pszErrorTag Error tag.
1978	*/
1979	RTDECL(int) RTAsn1CursorGetInteger(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1INTEGER pInteger, const char *pszErrorTag);
1980
1981	/**
1982	* Read an BOOLEAN object.
1983	*
1984	* @returns IPRT status code.
1985	* @param pCursor The cursor we're decoding from.
1986	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1987	* @param pBoolean The output boolean object.
1988	* @param pszErrorTag Error tag.
1989	*/
1990	RTDECL(int) RTAsn1CursorGetBoolean(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1BOOLEAN pBoolean, const char *pszErrorTag);
1991
1992	/**
1993	* Retrives an object identifier (aka ObjId or OID) item from the ASN.1 stream.
1994	*
1995	* @returns IPRT status code.
1996	* @param pCursor The cursor.
1997	* @param fFlags RTASN1CURSOR_GET_F_XXX.
1998	* @param pObjId The output ODI object.
1999	* @param pszErrorTag Error tag.
2000	*/
2001	RTDECL(int) RTAsn1CursorGetObjId(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1OBJID pObjId, const char *pszErrorTag);
2002
2003	/**
2004	* Retrives and verifies an object identifier.
2005	*
2006	* @returns IPRT status code.
2007	* @param pCursor The cursor.
2008	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2009	* @param pObjId Where to return the parsed object ID, optional.
2010	* @param pszExpectedObjId The expected object identifier (dotted).
2011	* @param pszErrorTag Error tag.
2012	*/
2013	RTDECL(int) RTAsn1CursorGetAndCheckObjId(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1OBJID pObjId,
2014	const char pszExpectedObjId, const char pszErrorTag);
2015
2016	/**
2017	* Read an UTC TIME or GENERALIZED TIME object.
2018	*
2019	* @returns IPRT status code.
2020	* @param pCursor The cursor we're decoding from.
2021	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2022	* @param pTime The output time object.
2023	* @param pszErrorTag Error tag.
2024	*/
2025	RTDECL(int) RTAsn1CursorGetTime(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1TIME pTime, const char *pszErrorTag);
2026
2027	/**
2028	* Read an BIT STRING object (skips past the content).
2029	*
2030	* @returns IPRT status ocde.
2031	* @param pCursor The cursor.
2032	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2033	* @param pBitString The output bit string object.
2034	* @param pszErrorTag Error tag.
2035	*/
2036	RTDECL(int) RTAsn1CursorGetBitString(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1BITSTRING pBitString,
2037	const char *pszErrorTag);
2038
2039	/**
2040	* Read an BIT STRING object (skips past the content), extended version with
2041	* cMaxBits.
2042	*
2043	* @returns IPRT status ocde.
2044	* @param pCursor The cursor.
2045	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2046	* @param cMaxBits The max length of the bit string in bits. Pass
2047	* UINT32_MAX if variable size.
2048	* @param pBitString The output bit string object.
2049	* @param pszErrorTag Error tag.
2050	*/
2051	RTDECL(int) RTAsn1CursorGetBitStringEx(PRTASN1CURSOR pCursor, uint32_t fFlags, uint32_t cMaxBits, PRTASN1BITSTRING pBitString,
2052	const char *pszErrorTag);
2053
2054	/**
2055	* Read an OCTET STRING object (skips past the content).
2056	*
2057	* @returns IPRT status ocde.
2058	* @param pCursor The cursor.
2059	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2060	* @param pOctetString The output octet string object.
2061	* @param pszErrorTag Error tag.
2062	*/
2063	RTDECL(int) RTAsn1CursorGetOctetString(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1OCTETSTRING pOctetString,
2064	const char *pszErrorTag);
2065
2066	/**
2067	* Read any kind of string object, except 'character string (29)'.
2068	*
2069	* @returns IPRT status code.
2070	* @param pCursor The cursor we're decoding from.
2071	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2072	* @param pString The output boolean object.
2073	* @param pszErrorTag Error tag.
2074	*/
2075	RTDECL(int) RTAsn1CursorGetString(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1STRING pString, const char *pszErrorTag);
2076
2077	/**
2078	* Read a IA5 STRING object.
2079	*
2080	* @returns IPRT status code.
2081	* @param pCursor The cursor we're decoding from.
2082	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2083	* @param pString The output boolean object.
2084	* @param pszErrorTag Error tag.
2085	*/
2086	RTDECL(int) RTAsn1CursorGetIa5String(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1STRING pString, const char *pszErrorTag);
2087
2088	/**
2089	* Read a UTF8 STRING object.
2090	*
2091	* @returns IPRT status code.
2092	* @param pCursor The cursor we're decoding from.
2093	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2094	* @param pString The output boolean object.
2095	* @param pszErrorTag Error tag.
2096	*/
2097	RTDECL(int) RTAsn1CursorGetUtf8String(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1STRING pString, const char *pszErrorTag);
2098
2099	/**
2100	* Read a BMP STRING (UCS-2) object.
2101	*
2102	* @returns IPRT status code.
2103	* @param pCursor The cursor we're decoding from.
2104	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2105	* @param pString The output boolean object.
2106	* @param pszErrorTag Error tag.
2107	*/
2108	RTDECL(int) RTAsn1CursorGetBmpString(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1STRING pString, const char *pszErrorTag);
2109
2110	/**
2111	* Read a SEQUENCE object and create a cursor for its content.
2112	*
2113	* @returns IPRT status code.
2114	* @param pCursor The cursor we're decoding from.
2115	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2116	* @param pSeqCore The output sequence core object.
2117	* @param pSeqCursor The output cursor for the sequence content.
2118	* @param pszErrorTag Error tag, this will be associated with the
2119	* returned cursor.
2120	*/
2121	RTDECL(int) RTAsn1CursorGetSequenceCursor(PRTASN1CURSOR pCursor, uint32_t fFlags,
2122	PRTASN1SEQUENCECORE pSeqCore, PRTASN1CURSOR pSeqCursor, const char *pszErrorTag);
2123
2124	/**
2125	* Read a SET object and create a cursor for its content.
2126	*
2127	* @returns IPRT status code.
2128	* @param pCursor The cursor we're decoding from.
2129	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2130	* @param pSetCore The output set core object.
2131	* @param pSetCursor The output cursor for the set content.
2132	* @param pszErrorTag Error tag, this will be associated with the
2133	* returned cursor.
2134	*/
2135	RTDECL(int) RTAsn1CursorGetSetCursor(PRTASN1CURSOR pCursor, uint32_t fFlags,
2136	PRTASN1SETCORE pSetCore, PRTASN1CURSOR pSetCursor, const char *pszErrorTag);
2137
2138	/**
2139	* Read a given constructed context tag and create a cursor for its content.
2140	*
2141	* @returns IPRT status code.
2142	* @param pCursor The cursor we're decoding from.
2143	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2144	* @param uExpectedTag The expected tag.
2145	* @param pVtable The vtable for the context tag node (see
2146	* RTASN1TMPL_PASS_XTAG).
2147	* @param pCtxTag The output context tag object.
2148	* @param pCtxTagCursor The output cursor for the context tag content.
2149	* @param pszErrorTag Error tag, this will be associated with the
2150	* returned cursor.
2151	*
2152	* @remarks There are specialized version of this function for each of the
2153	* numbered context tag structures, like for RTASN1CONTEXTTAG0 there is
2154	* RTAsn1CursorGetContextTag0Cursor.
2155	*/
2156	RTDECL(int) RTAsn1CursorGetContextTagNCursor(PRTASN1CURSOR pCursor, uint32_t fFlags, uint32_t uExpectedTag,
2157	PCRTASN1COREVTABLE pVtable, PRTASN1CONTEXTTAG pCtxTag, PRTASN1CURSOR pCtxTagCursor,
2158	const char *pszErrorTag);
2159
2160	/**
2161	* Read a dynamic ASN.1 type.
2162	*
2163	* @returns IPRT status code.
2164	* @param pCursor The cursor we're decoding from.
2165	* @param fFlags RTASN1CURSOR_GET_F_XXX.
2166	* @param pDynType The output context tag object.
2167	* @param pszErrorTag Error tag.
2168	*/
2169	RTDECL(int) RTAsn1CursorGetDynType(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1DYNTYPE pDynType, const char *pszErrorTag);
2170
2171	/**
2172	* Peeks at the next ASN.1 object.
2173	*
2174	* @returns IPRT status code.
2175	* @param pCursor The cursore we're decoding from.
2176	* @param pAsn1Core Where to store the output of the peek.
2177	*/
2178	RTDECL(int) RTAsn1CursorPeek(PRTASN1CURSOR pCursor, PRTASN1CORE pAsn1Core);
2179
2180	/**
2181	* Checks if the next ASN.1 object matches the given tag and class/flags.
2182	*
2183	* @returns @c true on match, @c false on mismatch.
2184	* @param pCursor The cursore we're decoding from.
2185	* @param uTag The tag number to match against.
2186	* @param fClass The tag class and flags to match against.
2187	*/
2188	RTDECL(bool) RTAsn1CursorIsNextEx(PRTASN1CURSOR pCursor, uint32_t uTag, uint8_t fClass);
2189
2190
2191
2192	/** @internal */
2193	#define RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(a_uTag) \
2194	DECLINLINE(int) RT_CONCAT3(RTAsn1CursorGetContextTag,a_uTag,Cursor)(PRTASN1CURSOR pCursor, uint32_t fFlags, \
2195	PCRTASN1COREVTABLE pVtable, \
2196	RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag) pCtxTag, \
2197	PRTASN1CURSOR pCtxTagCursor, const char *pszErrorTag) \
2198	{ /* Constructed is automatically implied if you need a cursor to it. */ \
2199	return RTAsn1CursorGetContextTagNCursor(pCursor, fFlags, a_uTag, pVtable, (PRTASN1CONTEXTTAG)pCtxTag, pCtxTagCursor, pszErrorTag); \
2200	} \
2201	DECLINLINE(int) RT_CONCAT3(RTAsn1ContextTag,a_uTag,InitDefault)(RT_CONCAT(PRTASN1CONTEXTTAG,a_uTag) pCtxTag) \
2202	{ /* Constructed is automatically implied if you need to init it with a default value. */ \
2203	return RTAsn1Core_InitDefault(&pCtxTag->Asn1Core, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_CONSTRUCTED); \
2204	} \
2205	DECLINLINE(int) RT_CONCAT3(RTAsn1CursorIsConstructedContextTag,a_uTag,Next)(PRTASN1CURSOR pCursor) \
2206	{ \
2207	return RTAsn1CursorIsNextEx(pCursor, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_CONSTRUCTED); \
2208	} \
2209	DECLINLINE(int) RT_CONCAT3(RTAsn1CursorIsPrimitiveContextTag,a_uTag,Next)(PRTASN1CURSOR pCursor) \
2210	{ \
2211	return RTAsn1CursorIsNextEx(pCursor, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_PRIMITIVE); \
2212	} \
2213	DECLINLINE(int) RT_CONCAT3(RTAsn1CursorIsAnyContextTag,a_uTag,Next)(PRTASN1CURSOR pCursor) \
2214	{ \
2215	return RTAsn1CursorIsNextEx(pCursor, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_CONSTRUCTED) \
2216	\|\| RTAsn1CursorIsNextEx(pCursor, a_uTag, ASN1_TAGCLASS_CONTEXT \| ASN1_TAGFLAG_PRIMITIVE);\
2217	} \
2218
2219	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(0)
2220	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(1)
2221	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(2)
2222	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(3)
2223	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(4)
2224	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(5)
2225	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(6)
2226	RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES(7)
2227	#undef RTASN1CONTEXTTAG_IMPL_CURSOR_INLINES
2228
2229
2230	/**
2231	* Checks if the next object is a boolean.
2232	*
2233	* @returns true / false
2234	* @param pCursor The cursor we're decoding from.
2235	* @remarks May produce error info output on mismatch.
2236	*/
2237	DECLINLINE(bool) RTAsn1CursorIsBooleanNext(PRTASN1CURSOR pCursor)
2238	{
2239	return RTAsn1CursorIsNextEx(pCursor, ASN1_TAG_BOOLEAN, ASN1_TAGFLAG_PRIMITIVE \| ASN1_TAGCLASS_UNIVERSAL);
2240	}
2241
2242
2243	/**
2244	* Checks if the next object is a set.
2245	*
2246	* @returns true / false
2247	* @param pCursor The cursor we're decoding from.
2248	* @remarks May produce error info output on mismatch.
2249	*/
2250	DECLINLINE(bool) RTAsn1CursorIsSetNext(PRTASN1CURSOR pCursor)
2251	{
2252	return RTAsn1CursorIsNextEx(pCursor, ASN1_TAG_SET, ASN1_TAGFLAG_CONSTRUCTED \| ASN1_TAGCLASS_UNIVERSAL);
2253	}
2254
2255
2256	/** @} */
2257
2258
2259	/** @name ASN.1 Utility APIs
2260	* @{ */
2261
2262	/**
2263	* Dumps an IPRT representation of a ASN.1 object tree.
2264	*
2265	* @returns IPRT status code.
2266	* @param pAsn1Core The ASN.1 object which members should be dumped.
2267	* @param fFlags RTASN1DUMP_F_XXX.
2268	* @param uLevel The indentation level to start at.
2269	* @param pfnPrintfV The output function.
2270	* @param pvUser Argument to the output function.
2271	*/
2272	RTDECL(int) RTAsn1Dump(PCRTASN1CORE pAsn1Core, uint32_t fFlags, uint32_t uLevel, PFNRTDUMPPRINTFV pfnPrintfV, void *pvUser);
2273
2274	/**
2275	* Queries the name for an object identifier.
2276	*
2277	* This API is very simple due to how we store the data.
2278	*
2279	* @returns IPRT status code.
2280	* @retval VINF_SUCCESS on success.
2281	* @retval VERR_NOT_FOUND if not found.
2282	* @retval VERR_BUFFER_OVERFLOW if more buffer space is required.
2283	*
2284	* @param pObjId The object ID to name.
2285	* @param pszDst Where to store the name if found.
2286	* @param cbDst The size of the destination buffer.
2287	*/
2288	RTDECL(int) RTAsn1QueryObjIdName(PCRTASN1OBJID pObjId, char *pszDst, size_t cbDst);
2289
2290	/** @} */
2291
2292	/** @} */
2293
2294	RT_C_DECLS_END
2295
2296	#endif /* !IPRT_INCLUDED_asn1_h */
2297

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