Add backend encryption support for NTLMv2.

The leg-work for this was done by the folks at samba-tng.org, I'm just bringing
it accross to HEAD.

The MD5 implementation is seperatly derived, and does not have the copyright
problems that the one in TNG has.

Also add const to a few places where it makes sence.

Andrew Bartlett
(This used to be commit 8df8e841445dfe09fc7a06bb55d12adc3fecb345)

3 files changed, 57 insertions, 0 deletions

diff --git a/source3/include/hmacmd5.h b/source3/include/hmacmd5.h
new file mode 100644
index 0000000000..adb52058a8
--- /dev/null
+++ b/source3/include/hmacmd5.h
@@ -0,0 +1,33 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+   Interface header: Scheduler service
+   Copyright (C) Luke Kenneth Casson Leighton 1996-1999
+   Copyright (C) Andrew Tridgell 1992-1999
+   
+   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.
+   
+   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.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef _HMAC_MD5_H
+
+typedef struct 
+{
+        struct MD5Context ctx;
+        uchar k_ipad[65];    
+        uchar k_opad[65];
+
+} HMACMD5Context;
+
+#endif /* _HMAC_MD5_H */
diff --git a/source3/include/includes.h b/source3/include/includes.h
index 7c1a4a8607..3d6147f587 100644
--- a/source3/include/includes.h
+++ b/source3/include/includes.h
@@ -663,6 +663,9 @@ extern int errno;
 
 #include "mapping.h"
 
+#include "md5.h"
+#include "hmacmd5.h"
+
 #ifndef MAXCODEPAGELINES
 #define MAXCODEPAGELINES 256
 #endif
diff --git a/source3/include/md5.h b/source3/include/md5.h
new file mode 100644
index 0000000000..3737092c86
--- /dev/null
+++ b/source3/include/md5.h
@@ -0,0 +1,21 @@
+#ifndef MD5_H
+#define MD5_H
+
+struct MD5Context {
+	uint32 buf[4];
+	uint32 bits[2];
+	unsigned char in[64];
+};
+
+void MD5Init(struct MD5Context *context);
+void MD5Update(struct MD5Context *context, unsigned char const *buf,
+	       unsigned len);
+void MD5Final(unsigned char digest[16], struct MD5Context *context);
+void MD5Transform(uint32 buf[4], uint32 const in[16]);
+
+/*
+ * This is needed to make RSAREF happy on some MS-DOS compilers.
+ */
+typedef struct MD5Context MD5_CTX;
+
+#endif /* !MD5_H */