// 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. #include "net/quic/quic_utils.h" #include "base/logging.h" #include "base/port.h" namespace net { // static uint128 QuicUtils::FNV1a_128_Hash(const char* data, int len) { // The following two constants are defined as part of the hash algorithm. // see http://www.isthe.com/chongo/tech/comp/fnv/ // 309485009821345068724781371 const uint128 kPrime(16777216, 315); // 144066263297769815596495629667062367629 const uint128 kOffset(GG_UINT64_C(7809847782465536322), GG_UINT64_C(7113472399480571277)); const uint8* octets = reinterpret_cast(data); uint128 hash = kOffset; for (int i = 0; i < len; ++i) { hash = hash ^ uint128(0, octets[i]); hash = hash * kPrime; } return hash; } #define RETURN_STRING_LITERAL(x) \ case x: \ return #x; // static const char* QuicUtils::ErrorToString(QuicErrorCode error) { switch (error) { RETURN_STRING_LITERAL(QUIC_NO_ERROR); RETURN_STRING_LITERAL(QUIC_STREAM_DATA_AFTER_TERMINATION); RETURN_STRING_LITERAL(QUIC_SERVER_ERROR_PROCESSING_STREAM); RETURN_STRING_LITERAL(QUIC_MULTIPLE_TERMINATION_OFFSETS); RETURN_STRING_LITERAL(QUIC_BAD_APPLICATION_PAYLOAD); RETURN_STRING_LITERAL(QUIC_INVALID_PACKET_HEADER); RETURN_STRING_LITERAL(QUIC_INVALID_FRAME_DATA); RETURN_STRING_LITERAL(QUIC_INVALID_FEC_DATA); RETURN_STRING_LITERAL(QUIC_INVALID_RST_STREAM_DATA); RETURN_STRING_LITERAL(QUIC_INVALID_CONNECTION_CLOSE_DATA); RETURN_STRING_LITERAL(QUIC_INVALID_GOAWAY_DATA); RETURN_STRING_LITERAL(QUIC_INVALID_ACK_DATA); RETURN_STRING_LITERAL(QUIC_DECRYPTION_FAILURE); RETURN_STRING_LITERAL(QUIC_ENCRYPTION_FAILURE); RETURN_STRING_LITERAL(QUIC_PACKET_TOO_LARGE); RETURN_STRING_LITERAL(QUIC_PACKET_FOR_NONEXISTENT_STREAM); RETURN_STRING_LITERAL(QUIC_PEER_GOING_AWAY); RETURN_STRING_LITERAL(QUIC_CRYPTO_TAGS_OUT_OF_ORDER); RETURN_STRING_LITERAL(QUIC_CRYPTO_TOO_MANY_ENTRIES); RETURN_STRING_LITERAL(QUIC_CRYPTO_INVALID_VALUE_LENGTH) RETURN_STRING_LITERAL(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE); RETURN_STRING_LITERAL(QUIC_INVALID_CRYPTO_MESSAGE_TYPE); RETURN_STRING_LITERAL(QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER); RETURN_STRING_LITERAL(QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND); RETURN_STRING_LITERAL(QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP); RETURN_STRING_LITERAL(QUIC_INVALID_STREAM_ID); RETURN_STRING_LITERAL(QUIC_TOO_MANY_OPEN_STREAMS); RETURN_STRING_LITERAL(QUIC_PUBLIC_RESET); RETURN_STRING_LITERAL(QUIC_CONNECTION_TIMED_OUT); // Intentionally have no default case, so we'll break the build // if we add errors and don't put them here. } return ""; } } // namespace net