1 files changed, 316 insertions, 0 deletions
diff --git a/mesalib/src/util/mesa-sha1.c b/mesalib/src/util/mesa-sha1.c
new file mode 100644
index 000000000..fa2819377
--- /dev/null
+++ b/mesalib/src/util/mesa-sha1.c
@@ -0,0 +1,316 @@
+/* Copyright © 2007 Carl Worth
+ * Copyright © 2009 Jeremy Huddleston, Julien Cristau, and Matthieu Herrb
+ * Copyright © 2009-2010 Mikhail Gusarov
+ * Copyright © 2012 Yaakov Selkowitz and Keith Packard
+ * Copyright © 2014 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "mesa-sha1.h"
+
+#if defined(HAVE_SHA1_IN_LIBMD)  /* Use libmd for SHA1 */ \
+	|| defined(HAVE_SHA1_IN_LIBC)   /* Use libc for SHA1 */
+
+#include <sha1.h>
+
+struct mesa_sha1 *
+_mesa_sha1_init(void)
+{
+   SHA1_CTX *ctx = malloc(sizeof(*ctx));
+
+   if (!ctx)
+      return NULL;
+
+   SHA1Init(ctx);
+   return (struct mesa_sha1 *) ctx;
+}
+
+int
+_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
+{
+   SHA1_CTX *sha1_ctx = (SHA1_CTX *) ctx;
+
+   SHA1Update(sha1_ctx, data, size);
+   return 1;
+}
+
+int
+_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
+{
+   SHA1_CTX *sha1_ctx = (SHA1_CTX *) ctx;
+
+   SHA1Final(result, sha1_ctx);
+   free(sha1_ctx);
+   return 1;
+}
+
+#elif defined(HAVE_SHA1_IN_COMMONCRYPTO)        /* Use CommonCrypto for SHA1 */
+
+#include <CommonCrypto/CommonDigest.h>
+
+struct mesa_sha1 *
+_mesa_sha1_init(void)
+{
+   CC_SHA1_CTX *ctx = malloc(sizeof(*ctx));
+
+   if (!ctx)
+      return NULL;
+
+   CC_SHA1_Init(ctx);
+   return (struct mesa_sha1 *) ctx;
+}
+
+int
+_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
+{
+   CC_SHA1_CTX *sha1_ctx = (CC_SHA1_CTX *) ctx;
+
+   CC_SHA1_Update(sha1_ctx, data, size);
+   return 1;
+}
+
+int
+_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
+{
+   CC_SHA1_CTX *sha1_ctx = (CC_SHA1_CTX *) ctx;
+
+   CC_SHA1_Final(result, sha1_ctx);
+   free(sha1_ctx);
+   return 1;
+}
+
+#elif defined(HAVE_SHA1_IN_CRYPTOAPI)        /* Use CryptoAPI for SHA1 */
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <wincrypt.h>
+
+static HCRYPTPROV hProv;
+
+struct mesa_sha1 *
+_mesa_sha1_init(void)
+{
+   HCRYPTHASH *ctx = malloc(sizeof(*ctx));
+
+   if (!ctx)
+      return NULL;
+
+   CryptAcquireContext(&hProv, NULL, MS_DEF_PROV, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT);
+   CryptCreateHash(hProv, CALG_SHA1, 0, 0, ctx);
+   return (struct mesa_sha1 *) ctx;
+}
+
+int
+_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
+{
+   HCRYPTHASH *hHash = (HCRYPTHASH *) ctx;
+
+   CryptHashData(*hHash, data, size, 0);
+   return 1;
+}
+
+int
+_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
+{
+   HCRYPTHASH *hHash = (HCRYPTHASH *) ctx;
+   DWORD len = 20;
+
+   CryptGetHashParam(*hHash, HP_HASHVAL, result, &len, 0);
+   CryptDestroyHash(*hHash);
+   CryptReleaseContext(hProv, 0);
+   free(ctx);
+   return 1;
+}
+
+#elif defined(HAVE_SHA1_IN_LIBNETTLE)   /* Use libnettle for SHA1 */
+
+#include <nettle/sha.h>
+
+struct mesa_sha1 *
+_mesa_sha1_init(void)
+{
+   struct sha1_ctx *ctx = malloc(sizeof(*ctx));
+
+   if (!ctx)
+      return NULL;
+   sha1_init(ctx);
+   return (struct mesa_sha1 *) ctx;
+}
+
+int
+_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
+{
+   sha1_update((struct sha1_ctx *) ctx, size, data);
+   return 1;
+}
+
+int
+_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
+{
+   sha1_digest((struct sha1_ctx *) ctx, 20, result);
+   free(ctx);
+   return 1;
+}
+
+#elif defined(HAVE_SHA1_IN_LIBGCRYPT)   /* Use libgcrypt for SHA1 */
+
+#include <gcrypt.h>
+
+struct mesa_sha1 *
+_mesa_sha1_init(void)
+{
+   static int init;
+   gcry_md_hd_t h;
+   gcry_error_t err;
+
+   if (!init) {
+      if (!gcry_check_version(NULL))
+         return NULL;
+      gcry_control(GCRYCTL_DISABLE_SECMEM, 0);
+      gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
+      init = 1;
+   }
+
+   err = gcry_md_open(&h, GCRY_MD_SHA1, 0);
+   if (err)
+      return NULL;
+   return (struct mesa_sha1 *) h;
+}
+
+int
+_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
+{
+   gcry_md_hd_t h = (gcry_md_hd_t) ctx;
+
+   gcry_md_write(h, data, size);
+   return 1;
+}
+
+int
+_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
+{
+   gcry_md_hd_t h = (gcry_md_hd_t) ctx;
+
+   memcpy(result, gcry_md_read(h, GCRY_MD_SHA1), 20);
+   gcry_md_close(h);
+   return 1;
+}
+
+#elif defined(HAVE_SHA1_IN_LIBSHA1)     /* Use libsha1 */
+
+#include <libsha1.h>
+
+struct mesa_sha1 *
+_mesa_sha1_init(void)
+{
+   sha1_ctx *ctx = malloc(sizeof(*ctx));
+
+   if (!ctx)
+      return NULL;
+   sha1_begin(ctx);
+   return (struct mesa_sha1 *) ctx;
+}
+
+int
+_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
+{
+   sha1_hash(data, size, (sha1_ctx *) ctx);
+   return 1;
+}
+
+int
+_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
+{
+   sha1_end(result, (sha1_ctx *) ctx);
+   free(ctx);
+   return 1;
+}
+
+#else                           /* Use OpenSSL's libcrypto */
+
+#include <stddef.h>             /* buggy openssl/sha.h wants size_t */
+#include <openssl/sha.h>
+
+struct mesa_sha1 *
+_mesa_sha1_init(void)
+{
+   int ret;
+   SHA_CTX *ctx = malloc(sizeof(*ctx));
+
+   if (!ctx)
+      return NULL;
+   ret = SHA1_Init(ctx);
+   if (!ret) {
+      free(ctx);
+      return NULL;
+   }
+   return (struct mesa_sha1 *) ctx;
+}
+
+int
+_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
+{
+   int ret;
+   SHA_CTX *sha_ctx = (SHA_CTX *) ctx;
+
+   ret = SHA1_Update(sha_ctx, data, size);
+   if (!ret)
+      free(sha_ctx);
+   return ret;
+}
+
+int
+_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
+{
+   int ret;
+   SHA_CTX *sha_ctx = (SHA_CTX *) ctx;
+
+   ret = SHA1_Final(result, (SHA_CTX *) sha_ctx);
+   free(sha_ctx);
+   return ret;
+}
+
+#endif
+
+void
+_mesa_sha1_compute(const void *data, size_t size, unsigned char result[20])
+{
+   struct mesa_sha1 *ctx;
+
+   ctx = _mesa_sha1_init();
+   _mesa_sha1_update(ctx, data, size);
+   _mesa_sha1_final(ctx, result);
+}
+
+char *
+_mesa_sha1_format(char *buf, const unsigned char *sha1)
+{
+   static const char hex_digits[] = "0123456789abcdef";
+   int i;
+
+   for (i = 0; i < 40; i += 2) {
+      buf[i] = hex_digits[sha1[i >> 1] >> 4];
+      buf[i + 1] = hex_digits[sha1[i >> 1] & 0x0f];
+   }
+   buf[i] = '\0';
+
+   return buf;
+}