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gecko-dev/security/nss/lib/util/secasn1.h

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape security libraries.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* Support for encoding/decoding of ASN.1 using BER/DER (Basic/Distinguished
* Encoding Rules). The routines are found in and used extensively by the
* security library, but exported for other use.
*
* $Id: secasn1.h,v 1.12 2004/04/25 15:03:18 gerv%gerv.net Exp $
*/
#ifndef _SECASN1_H_
#define _SECASN1_H_
#include "plarena.h"
#include "seccomon.h"
#include "secasn1t.h"
/************************************************************************/
SEC_BEGIN_PROTOS
/*
* XXX These function prototypes need full, explanatory comments.
*/
/*
** Decoding.
*/
extern SEC_ASN1DecoderContext *SEC_ASN1DecoderStart(PRArenaPool *pool,
void *dest,
const SEC_ASN1Template *t);
/* XXX char or unsigned char? */
extern SECStatus SEC_ASN1DecoderUpdate(SEC_ASN1DecoderContext *cx,
const char *buf,
unsigned long len);
extern SECStatus SEC_ASN1DecoderFinish(SEC_ASN1DecoderContext *cx);
/* Higher level code detected an error, abort the rest of the processing */
extern void SEC_ASN1DecoderAbort(SEC_ASN1DecoderContext *cx, int error);
extern void SEC_ASN1DecoderSetFilterProc(SEC_ASN1DecoderContext *cx,
SEC_ASN1WriteProc fn,
void *arg, PRBool no_store);
extern void SEC_ASN1DecoderClearFilterProc(SEC_ASN1DecoderContext *cx);
extern void SEC_ASN1DecoderSetNotifyProc(SEC_ASN1DecoderContext *cx,
SEC_ASN1NotifyProc fn,
void *arg);
extern void SEC_ASN1DecoderClearNotifyProc(SEC_ASN1DecoderContext *cx);
extern SECStatus SEC_ASN1Decode(PRArenaPool *pool, void *dest,
const SEC_ASN1Template *t,
const char *buf, long len);
extern SECStatus SEC_ASN1DecodeItem(PRArenaPool *pool, void *dest,
const SEC_ASN1Template *t,
const SECItem *src);
extern SECStatus SEC_QuickDERDecodeItem(PRArenaPool* arena, void* dest,
const SEC_ASN1Template* templateEntry,
const SECItem* src);
/*
** Encoding.
*/
extern SEC_ASN1EncoderContext *SEC_ASN1EncoderStart(const void *src,
const SEC_ASN1Template *t,
SEC_ASN1WriteProc fn,
void *output_arg);
/* XXX char or unsigned char? */
extern SECStatus SEC_ASN1EncoderUpdate(SEC_ASN1EncoderContext *cx,
const char *buf,
unsigned long len);
extern void SEC_ASN1EncoderFinish(SEC_ASN1EncoderContext *cx);
/* Higher level code detected an error, abort the rest of the processing */
extern void SEC_ASN1EncoderAbort(SEC_ASN1EncoderContext *cx, int error);
extern void SEC_ASN1EncoderSetNotifyProc(SEC_ASN1EncoderContext *cx,
SEC_ASN1NotifyProc fn,
void *arg);
extern void SEC_ASN1EncoderClearNotifyProc(SEC_ASN1EncoderContext *cx);
extern void SEC_ASN1EncoderSetStreaming(SEC_ASN1EncoderContext *cx);
extern void SEC_ASN1EncoderClearStreaming(SEC_ASN1EncoderContext *cx);
extern void sec_ASN1EncoderSetDER(SEC_ASN1EncoderContext *cx);
extern void sec_ASN1EncoderClearDER(SEC_ASN1EncoderContext *cx);
extern void SEC_ASN1EncoderSetTakeFromBuf(SEC_ASN1EncoderContext *cx);
extern void SEC_ASN1EncoderClearTakeFromBuf(SEC_ASN1EncoderContext *cx);
extern SECStatus SEC_ASN1Encode(const void *src, const SEC_ASN1Template *t,
SEC_ASN1WriteProc output_proc,
void *output_arg);
extern SECItem * SEC_ASN1EncodeItem(PRArenaPool *pool, SECItem *dest,
const void *src, const SEC_ASN1Template *t);
extern SECItem * SEC_ASN1EncodeInteger(PRArenaPool *pool,
SECItem *dest, long value);
extern SECItem * SEC_ASN1EncodeUnsignedInteger(PRArenaPool *pool,
SECItem *dest,
unsigned long value);
extern SECStatus SEC_ASN1DecodeInteger(SECItem *src,
unsigned long *value);
/*
** Utilities.
*/
/*
* We have a length that needs to be encoded; how many bytes will the
* encoding take?
*/
extern int SEC_ASN1LengthLength (unsigned long len);
/* encode the length and return the number of bytes we encoded. Buffer
* must be pre allocated */
extern int SEC_ASN1EncodeLength(unsigned char *buf,int value);
/*
* Find the appropriate subtemplate for the given template.
* This may involve calling a "chooser" function, or it may just
* be right there. In either case, it is expected to *have* a
* subtemplate; this is asserted in debug builds (in non-debug
* builds, NULL will be returned).
*
* "thing" is a pointer to the structure being encoded/decoded
* "encoding", when true, means that we are in the process of encoding
* (as opposed to in the process of decoding)
*/
extern const SEC_ASN1Template *
SEC_ASN1GetSubtemplate (const SEC_ASN1Template *inTemplate, void *thing,
PRBool encoding);
/************************************************************************/
/*
* Generic Templates
* One for each of the simple types, plus a special one for ANY, plus:
* - a pointer to each one of those
* - a set of each one of those
* - a sequence of each one of those
*
* Note that these are alphabetical (case insensitive); please add new
* ones in the appropriate place.
*/
extern const SEC_ASN1Template SEC_AnyTemplate[];
extern const SEC_ASN1Template SEC_BitStringTemplate[];
extern const SEC_ASN1Template SEC_BMPStringTemplate[];
extern const SEC_ASN1Template SEC_BooleanTemplate[];
extern const SEC_ASN1Template SEC_EnumeratedTemplate[];
extern const SEC_ASN1Template SEC_GeneralizedTimeTemplate[];
extern const SEC_ASN1Template SEC_IA5StringTemplate[];
extern const SEC_ASN1Template SEC_IntegerTemplate[];
extern const SEC_ASN1Template SEC_NullTemplate[];
extern const SEC_ASN1Template SEC_ObjectIDTemplate[];
extern const SEC_ASN1Template SEC_OctetStringTemplate[];
extern const SEC_ASN1Template SEC_PrintableStringTemplate[];
extern const SEC_ASN1Template SEC_T61StringTemplate[];
extern const SEC_ASN1Template SEC_UniversalStringTemplate[];
extern const SEC_ASN1Template SEC_UTCTimeTemplate[];
extern const SEC_ASN1Template SEC_UTF8StringTemplate[];
extern const SEC_ASN1Template SEC_VisibleStringTemplate[];
extern const SEC_ASN1Template SEC_PointerToAnyTemplate[];
extern const SEC_ASN1Template SEC_PointerToBitStringTemplate[];
extern const SEC_ASN1Template SEC_PointerToBMPStringTemplate[];
extern const SEC_ASN1Template SEC_PointerToBooleanTemplate[];
extern const SEC_ASN1Template SEC_PointerToEnumeratedTemplate[];
extern const SEC_ASN1Template SEC_PointerToGeneralizedTimeTemplate[];
extern const SEC_ASN1Template SEC_PointerToIA5StringTemplate[];
extern const SEC_ASN1Template SEC_PointerToIntegerTemplate[];
extern const SEC_ASN1Template SEC_PointerToNullTemplate[];
extern const SEC_ASN1Template SEC_PointerToObjectIDTemplate[];
extern const SEC_ASN1Template SEC_PointerToOctetStringTemplate[];
extern const SEC_ASN1Template SEC_PointerToPrintableStringTemplate[];
extern const SEC_ASN1Template SEC_PointerToT61StringTemplate[];
extern const SEC_ASN1Template SEC_PointerToUniversalStringTemplate[];
extern const SEC_ASN1Template SEC_PointerToUTCTimeTemplate[];
extern const SEC_ASN1Template SEC_PointerToUTF8StringTemplate[];
extern const SEC_ASN1Template SEC_PointerToVisibleStringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfAnyTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfBitStringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfBMPStringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfBooleanTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfEnumeratedTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfGeneralizedTimeTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfIA5StringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfIntegerTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfNullTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfObjectIDTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfOctetStringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfPrintableStringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfT61StringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfUniversalStringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfUTCTimeTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfUTF8StringTemplate[];
extern const SEC_ASN1Template SEC_SequenceOfVisibleStringTemplate[];
extern const SEC_ASN1Template SEC_SetOfAnyTemplate[];
extern const SEC_ASN1Template SEC_SetOfBitStringTemplate[];
extern const SEC_ASN1Template SEC_SetOfBMPStringTemplate[];
extern const SEC_ASN1Template SEC_SetOfBooleanTemplate[];
extern const SEC_ASN1Template SEC_SetOfEnumeratedTemplate[];
extern const SEC_ASN1Template SEC_SetOfGeneralizedTimeTemplate[];
extern const SEC_ASN1Template SEC_SetOfIA5StringTemplate[];
extern const SEC_ASN1Template SEC_SetOfIntegerTemplate[];
extern const SEC_ASN1Template SEC_SetOfNullTemplate[];
extern const SEC_ASN1Template SEC_SetOfObjectIDTemplate[];
extern const SEC_ASN1Template SEC_SetOfOctetStringTemplate[];
extern const SEC_ASN1Template SEC_SetOfPrintableStringTemplate[];
extern const SEC_ASN1Template SEC_SetOfT61StringTemplate[];
extern const SEC_ASN1Template SEC_SetOfUniversalStringTemplate[];
extern const SEC_ASN1Template SEC_SetOfUTCTimeTemplate[];
extern const SEC_ASN1Template SEC_SetOfUTF8StringTemplate[];
extern const SEC_ASN1Template SEC_SetOfVisibleStringTemplate[];
/*
* Template for skipping a subitem; this only makes sense when decoding.
*/
extern const SEC_ASN1Template SEC_SkipTemplate[];
/* These functions simply return the address of the above-declared templates.
** This is necessary for Windows DLLs. Sigh.
*/
SEC_ASN1_CHOOSER_DECLARE(SEC_AnyTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_BMPStringTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_BooleanTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_BitStringTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_GeneralizedTimeTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_IA5StringTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_IntegerTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_NullTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_ObjectIDTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_OctetStringTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_UTCTimeTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_UTF8StringTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_PointerToAnyTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_PointerToOctetStringTemplate)
SEC_ASN1_CHOOSER_DECLARE(SEC_SetOfAnyTemplate)
SEC_END_PROTOS
#endif /* _SECASN1_H_ */
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