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authorPauli <ppzgs1@gmail.com>2021-03-04 13:53:53 +1000
committerPauli <ppzgs1@gmail.com>2021-03-11 09:25:57 +1000
commit141cc94e44db93cded4ce3f0d97b9b5b928f43f2 (patch)
tree111a6e47c2a86347a6d969d00844a5b2dc8a5805 /crypto/encode_decode/encoder_lib.c
parent7a45d51ce3268d16409405b9d54d7b4bb77a7fc3 (diff)
Add a real type for OSSL_CORE_BIO which is distinct from and not castable to BIO
Providers (particularly the FIPS provider) needs access to BIOs from libcrypto. Libcrypto is allowed to change the internal format of the BIO structure and it is still expected to work with providers that were already built. This means that the libcrypto BIO must be distinct from and not castable to the provider side OSSL_CORE_BIO. Unfortunately, this requirement was broken in both directions. This fixes things by forcing the two to be different and any casts break loudly. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14419)
Diffstat (limited to 'crypto/encode_decode/encoder_lib.c')
-rw-r--r--crypto/encode_decode/encoder_lib.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/crypto/encode_decode/encoder_lib.c b/crypto/encode_decode/encoder_lib.c
index d15fb27fde..b25529e073 100644
--- a/crypto/encode_decode/encoder_lib.c
+++ b/crypto/encode_decode/encoder_lib.c
@@ -15,6 +15,7 @@
#include <openssl/params.h>
#include <openssl/provider.h>
#include <openssl/trace.h>
+#include "internal/bio.h"
#include "encoder_local.h"
struct encoder_process_data_st {
@@ -604,6 +605,7 @@ static int encoder_process(struct encoder_process_data_st *data)
/* Calling the encoder implementation */
if (ok) {
+ OSSL_CORE_BIO *cbio = NULL;
BIO *current_out = NULL;
/*
@@ -616,9 +618,10 @@ static int encoder_process(struct encoder_process_data_st *data)
== NULL)
ok = 0; /* Assume BIO_new() recorded an error */
+ if (ok)
+ ok = (cbio = ossl_core_bio_new_from_bio(current_out)) != NULL;
if (ok) {
- ok = current_encoder->encode(current_encoder_ctx,
- (OSSL_CORE_BIO *)current_out,
+ ok = current_encoder->encode(current_encoder_ctx, cbio,
original_data, current_abstract,
data->ctx->selection,
ossl_pw_passphrase_callback_enc,
@@ -631,6 +634,7 @@ static int encoder_process(struct encoder_process_data_st *data)
} OSSL_TRACE_END(ENCODER);
}
+ ossl_core_bio_free(cbio);
data->prev_encoder_inst = current_encoder_inst;
}
}