Move the middle part of evp_lib.c to evp_digest.c

These are ~200 lines of EVP_MD API that separated two parts of the file
dedicated to EVP_CIPHER thingies.

1 files changed, 204 insertions, 1 deletions

diff --git a/src/lib/libcrypto/evp/evp_digest.c b/src/lib/libcrypto/evp/evp_digest.c
index deb282e4ec..583c454845 100644
--- a/src/lib/libcrypto/evp/evp_digest.c
+++ b/src/lib/libcrypto/evp/evp_digest.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: evp_digest.c,v 1.1 2023/12/29 05:57:24 tb Exp $ */
+/* $OpenBSD: evp_digest.c,v 1.2 2023/12/29 06:08:01 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -367,3 +367,206 @@ EVP_MD_CTX_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr)
         }
         return ret;
 }
+
+int
+EVP_MD_block_size(const EVP_MD *md)
+{
+        return md->block_size;
+}
+
+int
+EVP_MD_type(const EVP_MD *md)
+{
+        return md->type;
+}
+
+int
+EVP_MD_pkey_type(const EVP_MD *md)
+{
+        return md->pkey_type;
+}
+
+int
+EVP_MD_size(const EVP_MD *md)
+{
+        if (!md) {
+                EVPerror(EVP_R_MESSAGE_DIGEST_IS_NULL);
+                return -1;
+        }
+        return md->md_size;
+}
+
+unsigned long
+EVP_MD_flags(const EVP_MD *md)
+{
+        return md->flags;
+}
+
+EVP_MD *
+EVP_MD_meth_new(int md_type, int pkey_type)
+{
+        EVP_MD *md;
+
+        if ((md = calloc(1, sizeof(*md))) == NULL)
+                return NULL;
+
+        md->type = md_type;
+        md->pkey_type = pkey_type;
+
+        return md;
+}
+
+EVP_MD *
+EVP_MD_meth_dup(const EVP_MD *md)
+{
+        EVP_MD *to;
+
+        if ((to = EVP_MD_meth_new(md->type, md->pkey_type)) == NULL)
+                return NULL;
+
+        memcpy(to, md, sizeof(*to));
+
+        return to;
+}
+
+void
+EVP_MD_meth_free(EVP_MD *md)
+{
+        freezero(md, sizeof(*md));
+}
+
+int
+EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize)
+{
+        md->block_size = blocksize;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_result_size(EVP_MD *md, int result_size)
+{
+        md->md_size = result_size;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize)
+{
+        md->ctx_size = datasize;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags)
+{
+        md->flags = flags;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx))
+{
+        md->init = init;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_update(EVP_MD *md,
+    int (*update)(EVP_MD_CTX *ctx, const void *data, size_t count))
+{
+        md->update = update;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_final(EVP_MD *md,
+    int (*final)(EVP_MD_CTX *ctx, unsigned char *md))
+{
+        md->final = final;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_copy(EVP_MD *md,
+    int (*copy)(EVP_MD_CTX *to, const EVP_MD_CTX *from))
+{
+        md->copy = copy;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_cleanup(EVP_MD *md,
+    int (*cleanup)(EVP_MD_CTX *ctx))
+{
+        md->cleanup = cleanup;
+        return 1;
+}
+
+int
+EVP_MD_meth_set_ctrl(EVP_MD *md,
+    int (*ctrl)(EVP_MD_CTX *ctx, int cmd, int p1, void *p2))
+{
+        md->md_ctrl = ctrl;
+        return 1;
+}
+
+const EVP_MD *
+EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
+{
+        if (!ctx)
+                return NULL;
+        return ctx->digest;
+}
+
+void *
+EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx)
+{
+        return ctx->md_data;
+}
+
+EVP_PKEY_CTX *
+EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx)
+{
+        return ctx->pctx;
+}
+
+void
+EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx)
+{
+        if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX)) {
+                EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
+        } else {
+                EVP_PKEY_CTX_free(ctx->pctx);
+        }
+
+        ctx->pctx = pctx;
+
+        if (pctx != NULL) {
+                /*
+                 * For unclear reasons it was decided that the caller keeps
+                 * ownership of pctx. So a flag was invented to make sure we
+                 * don't free it in EVP_MD_CTX_cleanup(). We also need to
+                 * unset it in EVP_MD_CTX_copy_ex(). Fortunately, the flag
+                 * isn't public...
+                 */
+                EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
+        }
+}
+
+void
+EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
+{
+        ctx->flags |= flags;
+}
+
+void
+EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags)
+{
+        ctx->flags &= ~flags;
+}
+
+int
+EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
+{
+        return (ctx->flags & flags);
+}