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authorMatt Caswell <matt@openssl.org>2023-07-10 17:41:06 +0100
committerPauli <pauli@openssl.org>2023-07-17 08:12:06 +1000
commit32d3c3abf3b74df1d9ebe562ba90f4dc3bdf2d4f (patch)
tree5949bc935f8b7b7500e9ed543c89ebdf0c3571ac /include
parent1e398bec538978b9957e69bf9e12b3c626290bea (diff)
Optimise PKEY decoders
The most expensive part of using a PKEY decoder is the OSSL_DECODER_CTX_new_for_pkey() call. This builds up all of the decoder chains, which is a complex and time consuming operation. However, if no new providers have been loaded/unloaded since the last time it was called we can expect the same results for the same parameters. Note that this operation takes place *before* we event parse the data for decoding so it is not dependent on the parsed data at all. We introduce a cache for OSSL_DECODER_CTX objects. If we have been called with the same parameters then we just duplicate an existing OSSL_DECODER_CTX. This should be significantly faster than creating a new one every time. Partially addressed the issue in #15199 Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/21426)
Diffstat (limited to 'include')
-rw-r--r--include/crypto/decoder.h6
-rw-r--r--include/internal/cryptlib.h1
-rw-r--r--include/internal/decoder.h18
3 files changed, 20 insertions, 5 deletions
diff --git a/include/crypto/decoder.h b/include/crypto/decoder.h
index a496f23e49..514190fca2 100644
--- a/include/crypto/decoder.h
+++ b/include/crypto/decoder.h
@@ -25,14 +25,10 @@ void *ossl_decoder_from_algorithm(int id, const OSSL_ALGORITHM *algodef,
OSSL_DECODER_INSTANCE *
ossl_decoder_instance_new(OSSL_DECODER *decoder, void *decoderctx);
void ossl_decoder_instance_free(OSSL_DECODER_INSTANCE *decoder_inst);
+OSSL_DECODER_INSTANCE *ossl_decoder_instance_dup(const OSSL_DECODER_INSTANCE *src);
int ossl_decoder_ctx_add_decoder_inst(OSSL_DECODER_CTX *ctx,
OSSL_DECODER_INSTANCE *di);
-int ossl_decoder_ctx_setup_for_pkey(OSSL_DECODER_CTX *ctx,
- EVP_PKEY **pkey, const char *keytype,
- OSSL_LIB_CTX *libctx,
- const char *propquery);
-
int ossl_decoder_get_number(const OSSL_DECODER *encoder);
int ossl_decoder_store_cache_flush(OSSL_LIB_CTX *libctx);
int ossl_decoder_store_remove_all_provided(const OSSL_PROVIDER *prov);
diff --git a/include/internal/cryptlib.h b/include/internal/cryptlib.h
index 5aeb4fe0f2..fd2eb5d56c 100644
--- a/include/internal/cryptlib.h
+++ b/include/internal/cryptlib.h
@@ -117,6 +117,7 @@ typedef struct ossl_ex_data_global_st {
# define OSSL_LIB_CTX_BIO_CORE_INDEX 17
# define OSSL_LIB_CTX_CHILD_PROVIDER_INDEX 18
# define OSSL_LIB_CTX_THREAD_INDEX 19
+# define OSSL_LIB_CTX_DECODER_CACHE_INDEX 20
# define OSSL_LIB_CTX_MAX_INDEXES 20
OSSL_LIB_CTX *ossl_lib_ctx_get_concrete(OSSL_LIB_CTX *ctx);
diff --git a/include/internal/decoder.h b/include/internal/decoder.h
new file mode 100644
index 0000000000..bfe1429ffb
--- /dev/null
+++ b/include/internal/decoder.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright 2023 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
+ */
+
+#ifndef OSSL_INTERNAL_DECODER_H
+# define OSSL_INTERNAL_DECODER_H
+# pragma once
+
+void *ossl_decoder_cache_new(OSSL_LIB_CTX *ctx);
+void ossl_decoder_cache_free(void *vcache);
+int ossl_decoder_cache_flush(OSSL_LIB_CTX *libctx);
+
+#endif