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Expose PKCS7_get_octet_string and PKCS7_type_is_other

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Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public interface.
Fixes #11139

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/13059)
This commit is contained in:
Jordan Montgomery 2020-10-01 23:02:52 -07:00 committed by Dmitry Belyavskiy
parent b19b983017
commit db554ae110
6 changed files with 93 additions and 2 deletions
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5
CHANGES.md
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@ -23,6 +23,11 @@ OpenSSL 3.0
### Changes between 1.1.1 and 3.0 [xx XXX xxxx]
* Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public
interface. Their functionality remains unchanged.
*Jordan Montgomery*
* Deprecated EVP_PKEY_set_alias_type(). This function was previously
needed as a workaround to recognise SM2 keys. With OpenSSL 3.0, this key
type is internally recognised so the workaround is no longer needed.

4
crypto/pkcs7/pk7_doit.c
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@ -20,7 +20,7 @@ static int add_attribute(STACK_OF(X509_ATTRIBUTE) **sk, int nid, int atrtype,
void *value);
static ASN1_TYPE *get_attribute(STACK_OF(X509_ATTRIBUTE) *sk, int nid);
static int PKCS7_type_is_other(PKCS7 *p7)
int PKCS7_type_is_other(PKCS7 *p7)
{
int isOther = 1;
@ -43,7 +43,7 @@ static int PKCS7_type_is_other(PKCS7 *p7)
}
static ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7)
ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7)
{
if (PKCS7_type_is_data(p7))
return p7->d.data;

40
doc/man3/PKCS7_get_octet_string.pod Normal file
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@ -0,0 +1,40 @@
=pod
=head1 NAME
PKCS7_get_octet_string - return octet string from a PKCS#7 envelopedData structure
=head1 SYNOPSIS
#include <openssl/pkcs7.h>
ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7);
=head1 DESCRIPTION
PKCS7_get_octet_string() returns a pointer to an ASN1 octet string from a
PKCS#7 envelopedData structure or B<NULL> if the structure cannot be parsed.
=head1 NOTES
As the B<0> implies, PKCS7_get_octet_string() returns internal pointers which
should not be freed by the caller.
=head1 RETURN VALUES
PKCS7_get_octet_string() returns an ASN1_OCTET_STRING pointer.
=head1 SEE ALSO
L<PKCS7_type_is_data(3)>
=head1 COPYRIGHT
Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut

42
doc/man3/PKCS7_type_is_other.pod Normal file
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@ -0,0 +1,42 @@
=pod
=head1 NAME
PKCS7_type_is_other - determine content type of PKCS#7 envelopedData structure
=head1 SYNOPSIS
#include <openssl/pkcs7.h>
int PKCS7_type_is_other(PKCS7 *p7);
=head1 DESCRIPTION
PKCS7_type_is_other() returns the whether the content type of a PKCS#7 envelopedData
structure is one of the following content types:
NID_pkcs7_data
NID_pkcs7_signed
NID_pkcs7_enveloped
NID_pkcs7_signedAndEnveloped
NID_pkcs7_digest
NID_pkcs7_encrypted
=head1 RETURN VALUES
PKCS7_type_is_other() returns either 0 if the content type is matched or 1 otherwise.
=head1 SEE ALSO
L<PKCS7_type_is_data(3)>, L<PKCS7_get_octet_string(3)>
=head1 COPYRIGHT
Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut

2
include/openssl/pkcs7.h.in
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@ -262,6 +262,7 @@ DECLARE_ASN1_PRINT_FUNCTION(PKCS7)
long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg);
int PKCS7_type_is_other(PKCS7 *p7);
int PKCS7_set_type(PKCS7 *p7, int type);
int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other);
int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data);
@ -297,6 +298,7 @@ int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher);
int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7);
PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx);
ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7);
ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk);
int PKCS7_add_signed_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int type,
void *data);

2
util/libcrypto.num
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@ -5307,3 +5307,5 @@ EVP_ASYM_CIPHER_gettable_ctx_params ? 3_0_0 EXIST::FUNCTION:
EVP_ASYM_CIPHER_settable_ctx_params ? 3_0_0 EXIST::FUNCTION:
EVP_KEM_gettable_ctx_params ? 3_0_0 EXIST::FUNCTION:
EVP_KEM_settable_ctx_params ? 3_0_0 EXIST::FUNCTION:
PKCS7_type_is_other ? 3_0_0 EXIST::FUNCTION:
PKCS7_get_octet_string ? 3_0_0 EXIST::FUNCTION: