- import of strongswan-2.7.0

- applied patch for charon
2006-04-28 07:14:48 +00:00
parent 52923c9acb
commit 997358a6c4
2043 changed files with 346842 additions and 0 deletions
@@ -0,0 +1,60 @@
+#ifndef _HMAC_GENERIC_H
+#define _HMAC_GENERIC_H
+/*
+ * HMAC macro helpers
+ *
+ * Author: JuanJo Ciarlante <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ */
+
+#ifndef DIVUP
+#define DIVUP(x,y) ((x + y -1) / y) /* divide, rounding upwards */
+#endif
+#ifndef HMAC_IPAD
+#define		HMAC_IPAD	0x36
+#define		HMAC_OPAD	0x5C
+#endif
+#define HMAC_SET_KEY_IMPL(func_name, hctx_t, blocksize, func_init, func_update) \
+void func_name(hctx_t *hctx, const u_int8_t * key, int keylen) { \
+	int i;\
+	u_int8_t kb[blocksize];		\
+	for (i = 0; i < DIVUP(keylen*8, 8); i++) {	\
+		kb[i] = key[i] ^ HMAC_IPAD;	\
+	}					\
+	for (; i < blocksize; i++) {		\
+		kb[i] = HMAC_IPAD;		\
+	}					\
+	func_init(&hctx->ictx);			\
+	func_update(&hctx->ictx, kb, blocksize);	\
+	for (i = 0; i < blocksize; i++) {	\
+		kb[i] ^= (HMAC_IPAD ^ HMAC_OPAD);	\
+	}					\
+	func_init(&hctx->octx);			\
+	func_update(&hctx->octx, kb, blocksize);	\
+}
+#define HMAC_HASH_IMPL(func_name, hctx_t, ctx_t, ahlen, func_update, func_result ) \
+void func_name(hctx_t *hctx, const u_int8_t * dat, int len, u_int8_t * hash, int hashlen) {	\
+	ctx_t ctx;	\
+	ctx=hctx->ictx;	\
+	if (dat) func_update(&ctx, dat, len);	\
+	if (hash) {				\
+		u_int8_t hash_buf[ahlen];			\
+		func_result(&ctx, hash_buf, ahlen);	\
+		ctx=hctx->octx;				\
+		func_update(&ctx, hash_buf, ahlen);	\
+		func_result(&ctx, hash, hashlen);	\
+		memset(&ctx, 0, sizeof (ctx));		\
+		memset(&hash_buf, 0, sizeof (hash_buf));\
+	}					\
+}
+#endif /* _HMAC_GENERIC_H */