use libmbedcrypto for SHA1

libgit2 · joshtriplett · Oct 9, 2015 · Oct 9, 2015 · Oct 9, 2015 · Oct 9, 2015
commit 46db15f45bb8c3e36ceb4c48da9b2e54016282c0
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -322,6 +322,9 @@ ELSEIF (OPENSSL_FOUND AND NOT SHA1_TYPE STREQUAL "builtin")
 	ELSE()
 		SET(LIBGIT2_PC_REQUIRES "${LIBGIT2_PC_REQUIRES} openssl")
 	ENDIF ()
+ELSEIF (MBEDTLS_FOUND AND NOT SHA1_TYPE STREQUAL "builtin")
+	ADD_DEFINITIONS(-DMBEDTLS_SHA1)
+	FILE(GLOB SRC_SHA1 src/hash/hash_mbedtls.c)
 ELSE()
 	FILE(GLOB SRC_SHA1 src/hash/hash_generic.c)
 ENDIF()

diff --git a/src/hash.h b/src/hash.h
@@ -20,6 +20,8 @@ void git_hash_ctx_cleanup(git_hash_ctx *ctx);
 # include "hash/hash_common_crypto.h"
 #elif defined(OPENSSL_SHA1)
 # include "hash/hash_openssl.h"
+#elif defined(MBEDTLS_SHA1)
+# include "hash/hash_mbedtls.h"
 #elif defined(WIN32_SHA1)
 # include "hash/hash_win32.h"
 #else

diff --git a/src/hash/hash_mbedtls.c b/src/hash/hash_mbedtls.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include "common.h"
+#include "hash.h"
+#include "hash/hash_mbedtls.h"
+
+void git_hash_ctx_cleanup(git_hash_ctx *ctx)
+{
+    assert(ctx);
+    mbedtls_sha1_free(&ctx->c);
+}
+
+int git_hash_init(git_hash_ctx *ctx)
+{
+    assert(ctx);
+    mbedtls_sha1_init(&ctx->c);
+    mbedtls_sha1_starts(&ctx->c);
+    return 0;
+}
+
+int git_hash_update(git_hash_ctx *ctx, const void *data, size_t len)
+{
+    assert(ctx);
+    mbedtls_sha1_update(&ctx->c, data, len);
+    return 0;
+}
+
+int git_hash_final(git_oid *out, git_hash_ctx *ctx)
+{
+    assert(ctx);
+    mbedtls_sha1_finish(&ctx->c, out->id);
+    return 0;
+}
diff --git a/src/hash/hash_mbedtls.h b/src/hash/hash_mbedtls.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#ifndef INCLUDE_hash_mbedtld_h__
+#define INCLUDE_hash_mbedtld_h__
+
+#include <mbedtls/sha1.h>
+
+struct git_hash_ctx {
+    mbedtls_sha1_context c;
+};
+
+#define git_hash_global_init() 0
+#define git_hash_ctx_init(ctx) git_hash_init(ctx)
+
+#endif /* INCLUDE_hash_mbedtld_h__ */