Add a buffer reader/writer for NTLM.

net/http/ntlm_message.h

Index: net/http/ntlm_message.h
diff --git a/net/http/ntlm_message.h b/net/http/ntlm_message.h
new file mode 100644
index 0000000000000000000000000000000000000000..376582a1ed7aa28c6a3188e2caed5dd05064bd39
--- /dev/null
+++ b/net/http/ntlm_message.h
@@ -0,0 +1,58 @@
+// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NET_BASE_NTLM_MESSAGE_H_
+#define NET_BASE_NTLM_MESSAGE_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "net/base/net_export.h"
+
+namespace net {
+
+// Contains consts and enums for various fields
+// in the NTLM protocol.
+class NET_EXPORT NtlmMessage {

[Ryan Sleevi, 2017/05/30 19:02:23]

see
https://google.github.io/styleguide/cppguide.html#Nonmember,_Static_Member,_a...

Sounds like these all belong in a namespace?

[zentaro, 2017/06/05 17:28:45]

Done.

+ private:
+  NtlmMessage();
+  ~NtlmMessage();
+
+ public:
+  static const uint8_t SIGNATURE[];
+  static const size_t SIGNATURE_LEN;
+  static const size_t SECURITY_BUFFER_LEN;
+  static const size_t NEGOTIATE_MESSAGE_LEN;
+  static const size_t RESPONSE_V1_LEN;
+  static const size_t CHALLENGE_LEN;
+  static const size_t NTLM_HASH_LEN;
+
+  enum NtlmVersion {
+    VERSION_NTLM_V1 = 0x01,
+    VERSION_NTLM_V2 = 0x02,
+  };
+
+  enum MessageType {
+    MESSAGE_NEGOTIATE = 0x01,
+    MESSAGE_CHALLENGE = 0x02,
+    MESSAGE_AUTHENTICATE = 0x03,
+  };
+
+  // Defined in NTLMSSP Spec 2.2.2.5
+  // Only the used subset is defined.
+  enum NegotiateFlags {
+    NTLMSSP_NEGOTIATE_UNICODE = 0x01,
+    NTLMSSP_NEGOTIATE_OEM = 0x02,
+    NTLMSSP_REQUEST_TARGET = 0x04,
+    NTLMSSP_NEGOTIATE_NTLM = 0x200,
+    NTLMSSP_NEGOTIATE_ALWAYS_SIGN = 0x8000,
+    NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY = 0x80000,
+  };
+
+  static const uint32_t NEGOTIATE_MESSAGE_FLAGS;
+};
+
+}  // namespace net
+
+#endif  // NET_BASE_NTLM_MESSAGE_H_