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/*
* Copyright 2019-2020 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
* https://www.openssl.org/source/license.html
*/
/*
* TODO(v3.0): the IMPLEMENT macros in include/openssl/pem.h should be
* moved here.
*/
#include <openssl/pem.h>
#include <openssl/serializer.h>
/* Alternative IMPLEMENT macros for provided serializers */
# define IMPLEMENT_PEM_provided_write_body_vars(type, asn1) \
int ret = 0; \
const char *pq = OSSL_SERIALIZER_##asn1##_TO_PEM_PQ; \
OSSL_SERIALIZER_CTX *ctx = OSSL_SERIALIZER_CTX_new_by_##type(x, pq); \
\
if (ctx != NULL && OSSL_SERIALIZER_CTX_get_serializer(ctx) == NULL) { \
OSSL_SERIALIZER_CTX_free(ctx); \
goto legacy; \
}
# define IMPLEMENT_PEM_provided_write_body_pass() \
ret = 1; \
if (kstr == NULL && cb == NULL) { \
if (u != NULL) { \
kstr = u; \
klen = strlen(u); \
} else { \
cb = PEM_def_callback; \
} \
} \
if (enc != NULL) { \
ret = 0; \
if (OSSL_SERIALIZER_CTX_set_cipher(ctx, EVP_CIPHER_name(enc), \
NULL)) { \
ret = 1; \
if (kstr != NULL \
&& !OSSL_SERIALIZER_CTX_set_passphrase(ctx, kstr, klen)) \
ret = 0; \
else if (cb != NULL \
&& !OSSL_SERIALIZER_CTX_set_passphrase_cb(ctx, \
cb, u)) \
ret = 0; \
} \
} \
if (!ret) { \
OSSL_SERIALIZER_CTX_free(ctx); \
return 0; \
}
# define IMPLEMENT_PEM_provided_write_body_main(type, outtype) \
ret = OSSL_SERIALIZER_to_##outtype(ctx, out); \
OSSL_SERIALIZER_CTX_free(ctx); \
return ret
# define IMPLEMENT_PEM_provided_write_body_fallback(str, asn1, \
writename) \
legacy: \
return PEM_ASN1_##writename((i2d_of_void *)i2d_##asn1, str, out, \
x, NULL, NULL, 0, NULL, NULL)
# define IMPLEMENT_PEM_provided_write_body_fallback_cb(str, asn1, \
writename) \
legacy: \
return PEM_ASN1_##writename((i2d_of_void *)i2d_##asn1, str, out, \
x, enc, kstr, klen, cb, u)
# define IMPLEMENT_PEM_provided_write_to(name, type, str, asn1, \
OUTTYPE, outtype, writename) \
PEM_write_fnsig(name, type, OUTTYPE, writename) \
{ \
IMPLEMENT_PEM_provided_write_body_vars(type, asn1); \
IMPLEMENT_PEM_provided_write_body_main(type, outtype); \
IMPLEMENT_PEM_provided_write_body_fallback(str, asn1, \
writename); \
}
# define IMPLEMENT_PEM_provided_write_cb_to(name, type, str, asn1, \
OUTTYPE, outtype, writename) \
PEM_write_cb_fnsig(name, type, OUTTYPE, writename) \
{ \
IMPLEMENT_PEM_provided_write_body_vars(type, asn1); \
IMPLEMENT_PEM_provided_write_body_pass(); \
IMPLEMENT_PEM_provided_write_body_main(type, outtype); \
IMPLEMENT_PEM_provided_write_body_fallback_cb(str, asn1, \
writename); \
}
# ifdef OPENSSL_NO_STDIO
# define IMPLEMENT_PEM_provided_write_fp(name, type, str, asn1)
# define IMPLEMENT_PEM_provided_write_cb_fp(name, type, str, asn1)
# else
# define IMPLEMENT_PEM_provided_write_fp(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_to(name, type, str, asn1, FILE, fp, write)
# define IMPLEMENT_PEM_provided_write_cb_fp(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb_to(name, type, str, asn1, FILE, fp, write)
# endif
# define IMPLEMENT_PEM_provided_write_bio(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_to(name, type, str, asn1, BIO, bio, write_bio)
# define IMPLEMENT_PEM_provided_write_cb_bio(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb_to(name, type, str, asn1, BIO, bio, write_bio)
# define IMPLEMENT_PEM_provided_write(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_bio(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_fp(name, type, str, asn1)
# define IMPLEMENT_PEM_provided_write_cb(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb_bio(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb_fp(name, type, str, asn1)
# define IMPLEMENT_PEM_provided_rw(name, type, str, asn1) \
IMPLEMENT_PEM_read(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write(name, type, str, asn1)
# define IMPLEMENT_PEM_provided_rw_cb(name, type, str, asn1) \
IMPLEMENT_PEM_read(name, type, str, asn1) \
IMPLEMENT_PEM_provided_write_cb(name, type, str, asn1)
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