1 files changed, 81 insertions, 0 deletions
diff --git a/chromium/net/quic/quic_utils.h b/chromium/net/quic/quic_utils.h
new file mode 100644
index 00000000000..6650dbf453b
--- /dev/null
+++ b/chromium/net/quic/quic_utils.h
@@ -0,0 +1,81 @@
+// Copyright (c) 2012 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.
+//
+// Some helpers for quic
+
+#ifndef NET_QUIC_QUIC_UTILS_H_
+#define NET_QUIC_QUIC_UTILS_H_
+
+#include "net/base/int128.h"
+#include "net/base/net_export.h"
+#include "net/quic/quic_protocol.h"
+
+namespace net {
+
+class NET_EXPORT_PRIVATE QuicUtils {
+ public:
+  enum Priority {
+    LOCAL_PRIORITY,
+    PEER_PRIORITY,
+  };
+
+  // returns the 64 bit FNV1a hash of the data.  See
+  // http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-param
+  static uint64 FNV1a_64_Hash(const char* data, int len);
+
+  // returns the 128 bit FNV1a hash of the data.  See
+  // http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-param
+  static uint128 FNV1a_128_Hash(const char* data, int len);
+
+  // FindMutualTag sets |out_result| to the first tag in the priority list that
+  // is also in the other list and returns true. If there is no intersection it
+  // returns false.
+  //
+  // Which list has priority is determined by |priority|.
+  //
+  // If |out_index| is non-NULL and a match is found then the index of that
+  // match in |their_tags| is written to |out_index|.
+  static bool FindMutualTag(const QuicTagVector& our_tags,
+                            const QuicTag* their_tags,
+                            size_t num_their_tags,
+                            Priority priority,
+                            QuicTag* out_result,
+                            size_t* out_index);
+
+  // SerializeUint128 writes |v| in little-endian form to |out|.
+  static void SerializeUint128(uint128 v, uint8* out);
+
+  // ParseUint128 parses a little-endian uint128 from |in| and returns it.
+  static uint128 ParseUint128(const uint8* in);
+
+  // Returns the name of the QuicRstStreamErrorCode as a char*
+  static const char* StreamErrorToString(QuicRstStreamErrorCode error);
+
+  // Returns the name of the QuicErrorCode as a char*
+  static const char* ErrorToString(QuicErrorCode error);
+
+  // Returns the level of encryption as a char*
+  static const char* EncryptionLevelToString(EncryptionLevel level);
+
+  // TagToString is a utility function for pretty-printing handshake messages
+  // that converts a tag to a string. It will try to maintain the human friendly
+  // name if possible (i.e. kABCD -> "ABCD"), or will just treat it as a number
+  // if not.
+  static std::string TagToString(QuicTag tag);
+
+  // Given a binary buffer, return a hex+ASCII dump in the style of
+  // tcpdump's -X and -XX options:
+  // "0x0000:  0090 69bd 5400 000d 610f 0189 0800 4500  ..i.T...a.....E.\n"
+  // "0x0010:  001c fb98 4000 4001 7e18 d8ef 2301 455d  ....@.@.~...#.E]\n"
+  // "0x0020:  7fe2 0800 6bcb 0bc6 806e                 ....k....n\n"
+  static std::string StringToHexASCIIDump(base::StringPiece in_buffer);
+
+  static char* AsChars(unsigned char* data) {
+    return reinterpret_cast<char*>(data);
+  }
+};
+
+}  // namespace net
+
+#endif  // NET_QUIC_QUIC_UTILS_H_