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// Copyright 2020 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 QUICHE_HTTP2_HPACK_DECODER_HPACK_DECODING_ERROR_H_
#define QUICHE_HTTP2_HPACK_DECODER_HPACK_DECODING_ERROR_H_
#include "absl/strings/string_view.h"
#include "quiche/common/platform/api/quiche_export.h"
namespace http2 {
enum class HpackDecodingError {
// No error detected so far.
kOk,
// Varint beyond implementation limit.
kIndexVarintError,
kNameLengthVarintError,
kValueLengthVarintError,
// String literal length exceeds buffer limit.
kNameTooLong,
kValueTooLong,
// Error in Huffman encoding.
kNameHuffmanError,
kValueHuffmanError,
// Next instruction should have been a dynamic table size update.
kMissingDynamicTableSizeUpdate,
// Invalid index in indexed header field representation.
kInvalidIndex,
// Invalid index in literal header field with indexed name representation.
kInvalidNameIndex,
// Dynamic table size update not allowed.
kDynamicTableSizeUpdateNotAllowed,
// Initial dynamic table size update is above low water mark.
kInitialDynamicTableSizeUpdateIsAboveLowWaterMark,
// Dynamic table size update is above acknowledged setting.
kDynamicTableSizeUpdateIsAboveAcknowledgedSetting,
// HPACK block ends in the middle of an instruction.
kTruncatedBlock,
// Incoming data fragment exceeds buffer limit.
kFragmentTooLong,
// Total compressed HPACK data size exceeds limit.
kCompressedHeaderSizeExceedsLimit,
};
QUICHE_EXPORT absl::string_view HpackDecodingErrorToString(
HpackDecodingError error);
} // namespace http2
#endif // QUICHE_HTTP2_HPACK_DECODER_HPACK_DECODING_ERROR_H_