thodg/libgit2/src/util/hash/win32.h

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• Hash : ce78c83b
  Author :
  Date : 2021-12-13T15:31:21
  

  sha: ensure we test both cng and cryptoapi on windows When GIT_SHA1_WIN32 or GIT_SHA256_WIN32 is used, ensure that we test both CryptoNG ("cng") and CryptoAPI.

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• src/util/hash/win32.h

• /*
   * 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_win32_h__
  #define INCLUDE_hash_win32_h__
  
  #include "hash/sha.h"
  
  #include <wincrypt.h>
  
  typedef enum {
  	GIT_HASH_WIN32_INVALID = 0,
  	GIT_HASH_WIN32_CRYPTOAPI,
  	GIT_HASH_WIN32_CNG
  } git_hash_win32_provider_t;
  
  struct git_hash_win32_cryptoapi_ctx {
  	bool valid;
  	HCRYPTHASH hash_handle;
  };
  
  struct git_hash_win32_cng_ctx {
  	bool updated;
  	HANDLE /* BCRYPT_HASH_HANDLE */ hash_handle;
  	PBYTE hash_object;
  };
  
  typedef struct {
  	ALG_ID algorithm;
  
  	union {
  		struct git_hash_win32_cryptoapi_ctx cryptoapi;
  		struct git_hash_win32_cng_ctx cng;
  	} ctx;
  } git_hash_win32_ctx;
  
  /*
   * Gets/sets the current hash provider (cng or cryptoapi).  This is only
   * for testing purposes.
   */
  git_hash_win32_provider_t git_hash_win32_provider(void);
  int git_hash_win32_set_provider(git_hash_win32_provider_t provider);
  
  #ifdef GIT_SHA1_WIN32
  struct git_hash_sha1_ctx {
  	git_hash_win32_ctx win32;
  };
  #endif
  
  #ifdef GIT_SHA256_WIN32
  struct git_hash_sha256_ctx {
  	git_hash_win32_ctx win32;
  };
  #endif
  
  #endif
  

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