Wed, 28 May 2025 20:54:43 +0200
add wrapper for openssl hashing functions
--- a/src/server/daemon/keyfile_auth.c Tue May 27 18:41:23 2025 +0200 +++ b/src/server/daemon/keyfile_auth.c Wed May 28 20:54:43 2025 +0200 @@ -30,14 +30,7 @@ #include <stdlib.h> #include <string.h> -#include <openssl/sha.h> -#if defined(__sun) && defined(__SunOS_5_10) -#include <sha2.h> -#define SHA256_Init SHA256Init -#define SHA256_Update SHA256Update -#define SHA256_Final SHA256Final -#endif - +#include "../util/hashing.h" #include "../util/atomic.h" #include "../util/util.h"
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/server/util/hashing.c Wed May 28 20:54:43 2025 +0200 @@ -0,0 +1,69 @@ +/* + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. + * + * Copyright 2025 Olaf Wintermann. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "hashing.h" + +#include <stdlib.h> + +WS_SHA_CTX* ws_sha256_create(void) { + WS_SHA_CTX *ctx = malloc(sizeof(WS_SHA_CTX)); + ws_sha256_init(ctx); + return ctx; +} + +#if OPENSSL_VERSION_NUMBER < 0x30000000L + +void ws_sha256_init(WS_SHA_CTX *ctx) { + SHA256_Init(ctx); +} + +void ws_sha256_update(WS_SHA_CTX *ctx, const void *data, size_t length) { + SHA256_Update(ctx, data, length); +} + +void ws_sha256_final(char *md, WS_SHA_CTX *ctx) { + SHA256_Final(md, ctx); +} + +#else + +void ws_sha256_init(WS_SHA_CTX *ctx) { + EVP_MD_CTX *mdctx = EVP_MD_CTX_new(); + EVP_DigestInit_ex(mdctx, EVP_sha256(), NULL); + *ctx = mdctx; +} + +void ws_sha256_update(WS_SHA_CTX *ctx, const char *data, size_t length) { + EVP_DigestUpdate(*ctx, data, length); +} + +void ws_sha256_final(WS_SHA_CTX *ctx, unsigned char *md) { + EVP_DigestFinal(*ctx, md, NULL); +} + +#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/server/util/hashing.h Wed May 28 20:54:43 2025 +0200 @@ -0,0 +1,113 @@ +/* + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. + * + * Copyright 2025 Olaf Wintermann. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef HASHING_H +#define HASHING_H + + +#ifdef __APPLE__ +/* macos */ + +#define WS_CRYPTO_COMMON_CRYPTO + +#define WS_AES_CTX CCCryptorRef +#define WS_SHA_CTX CC_SHA256_CTX +#define WS_SHA256_DIGEST_LENGTH 32 + +#include <CommonCrypto/CommonCrypto.h> +#include <CommonCrypto/CommonDigest.h> + +#elif defined(_WIN32) + +#define WS_CRYPTO_CNG + +#include <windows.h> +#include <bcrypt.h> + +typedef struct WinBCryptCTX { + BCRYPT_ALG_HANDLE hAlg; + BCRYPT_KEY_HANDLE hKey; + void *pbKeyObject; + unsigned char pbIV[16]; + + unsigned char buf[16]; + ULONG buflen; +} WinBCryptCTX; + +typedef struct WinBCryptSHACTX { + BCRYPT_ALG_HANDLE hAlg; + BCRYPT_HASH_HANDLE hHash; + void *pbHashObject; +} WinBCryptSHACTX; + +#define WS_AES_CTX WinBCryptCTX +#define WS_SHA_CTX WinBCryptSHACTX +#define WS_SHA256_DIGEST_LENGTH 32 + +#else +/* unix/linux */ + +#include <openssl/evp.h> +#include <openssl/rand.h> + +#define WS_USE_OPENSSL + +#define WS_AES_CTX EVP_CIPHER_CTX* + +#if OPENSSL_VERSION_NUMBER < 0x30000000L +#define WS_SHA_CTX SHA256_CTX +#else +#define WS_SHA_CTX EVP_MD_CTX* +#endif +#define WS_SHA256_DIGEST_LENGTH 32 + + +#if defined(__sun) && defined(__SunOS_5_10) +#include <sha2.h> +#define SHA256_Init SHA256Init +#define SHA256_Update SHA256Update +#define SHA256_Final SHA256Final +#else +#include <openssl/sha.h> +#endif + +#endif + + +void ws_sha256_init(WS_SHA_CTX *ctx); +WS_SHA_CTX* ws_sha256_create(void); +void ws_sha256_update(WS_SHA_CTX *ctx, const char *data, size_t len); +void ws_sha256_final(WS_SHA_CTX *ctx, unsigned char *buf); + + +#ifdef __cplusplus +} +#endif + +#endif /* HASHING_H */ +