| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Copyright (C) 2018 Apple Inc. All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #pragma once |
| |
| #if ENABLE(WEB_AUTHN) |
| |
| #include <stdint.h> |
| |
| namespace cbor { |
| |
| namespace constants { |
| |
| // Mask selecting the low-order 5 bits of the "initial byte", which is where |
| // the additional information is encoded. |
| static constexpr uint8_t kAdditionalInformationMask = 0x1F; |
| // Mask selecting the high-order 3 bits of the "initial byte", which indicates |
| // the major type of the encoded value. |
| static constexpr uint8_t kMajorTypeMask = 0xE0; |
| // Indicates the number of bits the "initial byte" needs to be shifted to the |
| // right after applying |kMajorTypeMask| to produce the major type in the |
| // lowermost bits. |
| static constexpr uint8_t kMajorTypeBitShift = 5u; |
| // Indicates the integer is in the following byte. |
| static constexpr uint8_t kAdditionalInformation1Byte = 24u; |
| // Indicates the integer is in the next 2 bytes. |
| static constexpr uint8_t kAdditionalInformation2Bytes = 25u; |
| // Indicates the integer is in the next 4 bytes. |
| static constexpr uint8_t kAdditionalInformation4Bytes = 26u; |
| // Indicates the integer is in the next 8 bytes. |
| static constexpr uint8_t kAdditionalInformation8Bytes = 27u; |
| |
| } // namespace constants |
| |
| } // namespace cbor |
| |
| #endif // ENABLE(WEB_AUTHN) |