darling-security/CMS/SecCmsEncoder.h
2022-12-12 19:51:23 -08:00

181 lines
7.3 KiB
C

/*
* Copyright (c) 2004-2018 Apple Inc. All Rights Reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*!
@header SecCmsEncoder.h
@availability 10.4 and later
@abstract CMS message encoding
@discussion The functions here implement functions for encoding
Cryptographic Message Syntax (CMS) objects as described
in rfc3369.
A SecCmsEncoder object is used to encode CMS messages into BER.
*/
#ifndef _SECURITY_SECCMSENCODER_H_
#define _SECURITY_SECCMSENCODER_H_ 1
#include <Security/SecCmsBase.h>
#include <CoreFoundation/CFData.h>
__BEGIN_DECLS
/*! @functiongroup Streaming interface */
#if TARGET_OS_OSX
/*!
@function
@abstract Set up encoding of a CMS message.
@param outputfn callback function for delivery of BER-encoded output will
not be called if NULL.
@param outputarg first argument passed to outputfn when it is called.
@param dest If non-NULL, pointer to a CSSM_DATA that will hold the
BER-encoded output.
@param destpoolp Pool to allocate BER-encoded output in.
@param pwfn callback function for getting token password for enveloped
data content with a password recipient.
@param pwfn_arg first argument passed to pwfn when it is called.
@param encrypt_key_cb callback function for getting bulk key for encryptedData content.
@param encrypt_key_cb_arg first argument passed to encrypt_key_cb when it is
called.
@param detached_digestalgs digest algorithms in detached_digests
@param detached_digests digests from detached content (one for every element
in detached_digestalgs).
@result On success a pointer to a SecCmsMessage containing the decoded message
is returned. On failure returns NULL. Call PR_GetError() to find out what
went wrong in this case.
@availability 10.4 through 10.7
*/
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
extern OSStatus
SecCmsEncoderCreate(SecCmsMessageRef cmsg,
SecCmsContentCallback outputfn, void *outputarg,
CSSM_DATA_PTR dest, SecArenaPoolRef destpoolp,
PK11PasswordFunc pwfn, void *pwfn_arg,
SecCmsGetDecryptKeyCallback encrypt_key_cb, void *encrypt_key_cb_arg,
SECAlgorithmID **detached_digestalgs, CSSM_DATA_PTR *detached_digests,
SecCmsEncoderRef *outEncoder)
API_AVAILABLE(macos(10.4)) API_UNAVAILABLE(macCatalyst);
#pragma clang diagnostic pop
#else // !TARGET_OS_OSX
/*!
@function
@abstract Set up encoding of a CMS message.
@param cmsg The SecCmsMessageRef to be encoded.
@param outputfn callback function for delivery of BER-encoded output will
not be called if NULL.
@param outputarg first argument passed to outputfn when it is called.
@param outBer If non-NULL, a CFMutableDataRef to which the
BER-encoded output will be appended.
@param pwfn callback function for getting token password for enveloped
data content with a password recipient.
@param pwfn_arg first argument passed to pwfn when it is called.
@param encrypt_key_cb callback function for getting bulk key for encryptedData content.
@param encrypt_key_cb_arg first argument passed to encrypt_key_cb when it is
called.
@result On success a pointer to a SecCmsMessage containing the decoded message
is returned. On failure returns NULL. Call PR_GetError() to find out what
went wrong in this case.
@availability 10.4 and later
*/
extern OSStatus
SecCmsEncoderCreate(SecCmsMessageRef cmsg,
SecCmsContentCallback outputfn, void *outputarg,
CFMutableDataRef outBer,
PK11PasswordFunc pwfn, void *pwfn_arg,
SecCmsGetDecryptKeyCallback encrypt_key_cb, void *encrypt_key_cb_arg,
SecCmsEncoderRef *outEncoder)
API_AVAILABLE(ios(2.0), tvos(2.0), watchos(1.0)) API_UNAVAILABLE(macCatalyst);
#endif // !TARGET_OS_OSX
/*!
@function
@abstract Take content data delivery from the user
@param encoder encoder context
@param data content data
@param len length of content data
@result On success 0 is returned. On failure returns non zero. Call
PR_GetError() to find out what went wrong in this case.
@availability 10.4 and later
*/
extern OSStatus
SecCmsEncoderUpdate(SecCmsEncoderRef encoder, const void *data, CFIndex len);
/*!
@function
@abstract Abort a (presumably failed) encoding process.
@param encoder Pointer to a SecCmsEncoderContext created with SecCmsEncoderCreate().
@availability 10.4 and later
*/
extern void
SecCmsEncoderDestroy(SecCmsEncoderRef encoder);
/*!
@function
@abstract Signal the end of data.
@discussion Walks down the chain of encoders and the finishes them from the
innermost out.
@param encoder Pointer to a SecCmsEncoder created with SecCmsEncoderCreate().
@result On success 0 is returned. On failure returns non zero. Call
PR_GetError() to find out what went wrong in this case.
@availability 10.4 and later
*/
extern OSStatus
SecCmsEncoderFinish(SecCmsEncoderRef encoder);
/*! @functiongroup One shot interface */
#if TARGET_OS_OSX
/*!
@function
@abstract BER Encode a CMS message.
@discussion BER Encode a CMS message, with input being the plaintext message and outBer being the output, stored in arena's pool.
*/
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
extern OSStatus
SecCmsMessageEncode(SecCmsMessageRef cmsg, const CSSM_DATA *input, SecArenaPoolRef arena,
CSSM_DATA_PTR outBer)
API_AVAILABLE(macos(10.4)) API_UNAVAILABLE(macCatalyst);
#pragma clang diagnostic pop
#else // !TARGET_OS_OSX
/*!
@function
@abstract BER Encode a CMS message.
@param cmsg The SecCmsMessageRef to be encoded.
@param input The inner content of the message.
@param outBer A CFMutableDataRef to which the
BER-encoded output will be appended.
@discussion BER Encode a CMS message, with input being the plaintext message and outBer being the output, stored in arena's pool.
*/
extern OSStatus
SecCmsMessageEncode(SecCmsMessageRef cmsg, const SecAsn1Item *input,
CFMutableDataRef outBer)
API_AVAILABLE(ios(2.0), tvos(2.0), watchos(1.0)) API_UNAVAILABLE(macCatalyst);
#endif // !TARGET_OS_OSX
__END_DECLS
#endif /* _SECURITY_SECCMSENCODER_H_ */