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-rw-r--r--src/crypto/digest/CMakeLists.txt2
-rw-r--r--src/crypto/digest/digest.c32
-rw-r--r--src/crypto/digest/digests.c3
-rw-r--r--src/crypto/digest/internal.h17
4 files changed, 41 insertions, 13 deletions
diff --git a/src/crypto/digest/CMakeLists.txt b/src/crypto/digest/CMakeLists.txt
index 856e45a..816d116 100644
--- a/src/crypto/digest/CMakeLists.txt
+++ b/src/crypto/digest/CMakeLists.txt
@@ -1,4 +1,4 @@
-include_directories(../../include)
+include_directories(. .. ../../include)
add_library(
digest
diff --git a/src/crypto/digest/digest.c b/src/crypto/digest/digest.c
index eb71b07..f09948b 100644
--- a/src/crypto/digest/digest.c
+++ b/src/crypto/digest/digest.c
@@ -116,7 +116,8 @@ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) {
uint8_t *tmp_buf = NULL;
if (in == NULL || in->digest == NULL) {
- OPENSSL_PUT_ERROR(DIGEST, DIGEST_R_INPUT_NOT_INITIALIZED);
+ OPENSSL_PUT_ERROR(DIGEST, EVP_MD_CTX_copy_ex,
+ DIGEST_R_INPUT_NOT_INITIALIZED);
return 0;
}
@@ -129,15 +130,15 @@ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) {
}
EVP_MD_CTX_cleanup(out);
+ memcpy(out, in, sizeof(EVP_MD_CTX));
- out->digest = in->digest;
if (in->md_data && in->digest->ctx_size) {
if (tmp_buf) {
out->md_data = tmp_buf;
} else {
out->md_data = OPENSSL_malloc(in->digest->ctx_size);
if (!out->md_data) {
- OPENSSL_PUT_ERROR(DIGEST, ERR_R_MALLOC_FAILURE);
+ OPENSSL_PUT_ERROR(DIGEST, EVP_MD_CTX_copy_ex, ERR_R_MALLOC_FAILURE);
return 0;
}
}
@@ -145,7 +146,6 @@ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) {
}
assert(in->pctx == NULL || in->pctx_ops != NULL);
- out->pctx_ops = in->pctx_ops;
if (in->pctx && in->pctx_ops) {
out->pctx = in->pctx_ops->dup(in->pctx);
if (!out->pctx) {
@@ -164,20 +164,30 @@ int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in) {
int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *engine) {
if (ctx->digest != type) {
- if (ctx->digest && ctx->digest->ctx_size > 0) {
+ if (ctx->digest && ctx->digest->ctx_size) {
OPENSSL_free(ctx->md_data);
}
ctx->digest = type;
- if (type->ctx_size > 0) {
+ if (!(ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) && type->ctx_size) {
+ ctx->update = type->update;
ctx->md_data = OPENSSL_malloc(type->ctx_size);
if (ctx->md_data == NULL) {
- OPENSSL_PUT_ERROR(DIGEST, ERR_R_MALLOC_FAILURE);
+ OPENSSL_PUT_ERROR(DIGEST, EVP_DigestInit_ex, ERR_R_MALLOC_FAILURE);
return 0;
}
}
}
assert(ctx->pctx == NULL || ctx->pctx_ops != NULL);
+ if (ctx->pctx_ops) {
+ if (!ctx->pctx_ops->begin_digest(ctx)) {
+ return 0;
+ }
+ }
+
+ if (ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) {
+ return 1;
+ }
ctx->digest->init(ctx);
return 1;
@@ -189,7 +199,7 @@ int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type) {
}
int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t len) {
- ctx->digest->update(ctx, data, len);
+ ctx->update(ctx, data, len);
return 1;
}
@@ -204,7 +214,7 @@ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, uint8_t *md_out, unsigned int *size) {
}
int EVP_DigestFinal(EVP_MD_CTX *ctx, uint8_t *md, unsigned int *size) {
- (void)EVP_DigestFinal_ex(ctx, md, size);
+ EVP_DigestFinal_ex(ctx, md, size);
EVP_MD_CTX_cleanup(ctx);
return 1;
}
@@ -243,6 +253,10 @@ int EVP_MD_CTX_type(const EVP_MD_CTX *ctx) {
return EVP_MD_type(EVP_MD_CTX_md(ctx));
}
+void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, uint32_t flags) {
+ ctx->flags |= flags;
+}
+
int EVP_add_digest(const EVP_MD *digest) {
return 1;
}
diff --git a/src/crypto/digest/digests.c b/src/crypto/digest/digests.c
index 3307f26..f5eda36 100644
--- a/src/crypto/digest/digests.c
+++ b/src/crypto/digest/digests.c
@@ -67,7 +67,7 @@
#include "internal.h"
#if defined(NDEBUG)
-#define CHECK(x) (void) (x)
+#define CHECK(x) x
#else
#define CHECK(x) assert(x)
#endif
@@ -262,7 +262,6 @@ struct nid_to_digest {
};
static const struct nid_to_digest nid_to_digest_mapping[] = {
- { NID_md4, EVP_md4, SN_md4, LN_md4 },
{ NID_md5, EVP_md5, SN_md5, LN_md5 },
{ NID_sha1, EVP_sha1, SN_sha1, LN_sha1 },
{ NID_sha224, EVP_sha224, SN_sha224, LN_sha224 },
diff --git a/src/crypto/digest/internal.h b/src/crypto/digest/internal.h
index e3d812a..1572fa8 100644
--- a/src/crypto/digest/internal.h
+++ b/src/crypto/digest/internal.h
@@ -92,7 +92,7 @@ struct env_md_st {
};
/* evp_md_pctx_ops contains function pointers to allow the |pctx| member of
- * |EVP_MD_CTX| to be manipulated without breaking layering by calling EVP
+ * |EVP_MD_CTX| to be manipulated without breaking laying by calling EVP
* functions. */
struct evp_md_pctx_ops {
/* free is called when an |EVP_MD_CTX| is being freed and the |pctx| also
@@ -102,8 +102,23 @@ struct evp_md_pctx_ops {
/* dup is called when an |EVP_MD_CTX| is copied and so the |pctx| also needs
* to be copied. */
EVP_PKEY_CTX* (*dup) (EVP_PKEY_CTX *pctx);
+
+ /* begin_digest is called when a new digest operation is started. It returns
+ * one on success and zero otherwise. */
+ int (*begin_digest) (EVP_MD_CTX *ctx);
};
+/* EVP_MD_CTX_set_flags ORs |flags| into the flags member of |ctx|. */
+OPENSSL_EXPORT void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, uint32_t flags);
+
+/* EVP_MD_CTX_FLAG_NO_INIT causes the |EVP_MD|'s |init| function not to be
+ * called, the |update| member not to be copied from the |EVP_MD| in
+ * |EVP_DigestInit_ex| and for |md_data| not to be initialised.
+ *
+ * TODO(davidben): This is an implementation detail of |EVP_PKEY_HMAC| and can
+ * be removed when it is gone. */
+#define EVP_MD_CTX_FLAG_NO_INIT 1
+
#if defined(__cplusplus)
} /* extern C */
generated by cgit v1.1 at 2024-12-22 15:14:20 +0000