Ping. If someone could take a look, it would be much appreciated. On Thu, Apr 7, 2022 at 11:02 PM Pedro Falcato wrote: > BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3871 > > Add the CRC16-ANSI and CRC32C implementations previously found at > Features/Ext4Pkg/Ext4Dxe/Crc{16,32c}.c to BaseLib. > > Cc: Michael D Kinney > Cc: Liming Gao > Cc: Zhiguang Liu > > Signed-off-by: Pedro Falcato > --- > MdePkg/Include/Library/BaseLib.h | 35 +++++++- > MdePkg/Library/BaseLib/CheckSum.c | 144 ++++++++++++++++++++++++++++++ > 2 files changed, 178 insertions(+), 1 deletion(-) > > diff --git a/MdePkg/Include/Library/BaseLib.h > b/MdePkg/Include/Library/BaseLib.h > index 6aa0d972186e..f365de9f74a0 100644 > --- a/MdePkg/Include/Library/BaseLib.h > +++ b/MdePkg/Include/Library/BaseLib.h > @@ -4503,6 +4503,40 @@ CalculateCrc32 ( > IN UINTN Length > ); > > +/** > + Calculates the CRC16-ANSI checksum of the given buffer. > + > + @param[in] Buffer Pointer to the buffer. > + @param[in] Length Length of the buffer, in bytes. > + @param[in] InitialValue Initial value of the CRC. > + > + @return The CRC16-ANSI checksum. > +**/ > +UINT16 > +EFIAPI > +CalculateCrc16Ansi ( > + IN CONST VOID *Buffer, > + IN UINTN Length, > + IN UINT16 InitialValue > + ); > + > +/** > + Calculates the CRC32c checksum of the given buffer. > + > + @param[in] Buffer Pointer to the buffer. > + @param[in] Length Length of the buffer, in bytes. > + @param[in] InitialValue Initial value of the CRC. > + > + @return The CRC32c checksum. > +**/ > +UINT32 > +EFIAPI > +CalculateCrc32c ( > + IN CONST VOID *Buffer, > + IN UINTN Length, > + IN UINT32 InitialValue > + ); > + > // > // Base Library CPU Functions > // > @@ -4512,7 +4546,6 @@ CalculateCrc32 ( > > @param Context1 Context1 parameter passed into SwitchStack(). > @param Context2 Context2 parameter passed into SwitchStack(). > - > **/ > typedef > VOID > diff --git a/MdePkg/Library/BaseLib/CheckSum.c > b/MdePkg/Library/BaseLib/CheckSum.c > index 28dee5ac6a15..b6a076573191 100644 > --- a/MdePkg/Library/BaseLib/CheckSum.c > +++ b/MdePkg/Library/BaseLib/CheckSum.c > @@ -3,6 +3,7 @@ > algorithm. > > Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.
> + Copyright (c) 2022, Pedro Falcato. All rights reserved.
> SPDX-License-Identifier: BSD-2-Clause-Patent > > **/ > @@ -618,3 +619,146 @@ CalculateCrc32 ( > > return Crc ^ 0xffffffff; > } > + > +GLOBAL_REMOVE_IF_UNREFERENCED STATIC CONST UINT16 mCrc16LookupTable[256] > = > +{ > + 0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241, > + 0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440, > + 0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40, > + 0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841, > + 0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40, > + 0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41, > + 0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641, > + 0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040, > + 0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240, > + 0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441, > + 0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41, > + 0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840, > + 0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41, > + 0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40, > + 0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640, > + 0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041, > + 0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240, > + 0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441, > + 0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41, > + 0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840, > + 0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41, > + 0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40, > + 0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640, > + 0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041, > + 0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241, > + 0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440, > + 0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40, > + 0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841, > + 0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40, > + 0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41, > + 0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641, > + 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040 > +}; > + > +/** > + Calculates the CRC16-ANSI checksum of the given buffer. > + > + @param[in] Buffer Pointer to the buffer. > + @param[in] Length Length of the buffer, in bytes. > + @param[in] InitialValue Initial value of the CRC. > + > + @return The CRC16-ANSI checksum. > +**/ > +UINT16 > +EFIAPI > +CalculateCrc16Ansi ( > + IN CONST VOID *Buffer, > + IN UINTN Length, > + IN UINT16 InitialValue > + ) > +{ > + CONST UINT8 *Buf; > + UINT16 Crc; > + > + Buf = Buffer; > + > + Crc = ~InitialValue; > + > + while (Length-- != 0) { > + Crc = mCrc16LookupTable[(Crc & 0xFF) ^ *(Buf++)] ^ (Crc >> 8); > + } > + > + return ~Crc; > +} > + > +GLOBAL_REMOVE_IF_UNREFERENCED STATIC CONST UINT32 > mCrc32cLookupTable[256] = { > + 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4, 0xc79a971f, 0x35f1141c, > + 0x26a1e7e8, 0xd4ca64eb, 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b, > + 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24, 0x105ec76f, 0xe235446c, > + 0xf165b798, 0x030e349b, 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384, > + 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54, 0x5d1d08bf, 0xaf768bbc, > + 0xbc267848, 0x4e4dfb4b, 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a, > + 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35, 0xaa64d611, 0x580f5512, > + 0x4b5fa6e6, 0xb93425e5, 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa, > + 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45, 0xf779deae, 0x05125dad, > + 0x1642ae59, 0xe4292d5a, 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a, > + 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595, 0x417b1dbc, 0xb3109ebf, > + 0xa0406d4b, 0x522bee48, 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957, > + 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687, 0x0c38d26c, 0xfe53516f, > + 0xed03a29b, 0x1f682198, 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927, > + 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38, 0xdbfc821c, 0x2997011f, > + 0x3ac7f2eb, 0xc8ac71e8, 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7, > + 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096, 0xa65c047d, 0x5437877e, > + 0x4767748a, 0xb50cf789, 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859, > + 0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46, 0x7198540d, 0x83f3d70e, > + 0x90a324fa, 0x62c8a7f9, 0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6, > + 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36, 0x3cdb9bdd, 0xceb018de, > + 0xdde0eb2a, 0x2f8b6829, 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c, > + 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93, 0x082f63b7, 0xfa44e0b4, > + 0xe9141340, 0x1b7f9043, 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c, > + 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3, 0x55326b08, 0xa759e80b, > + 0xb4091bff, 0x466298fc, 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c, > + 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033, 0xa24bb5a6, 0x502036a5, > + 0x4370c551, 0xb11b4652, 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d, > + 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d, 0xef087a76, 0x1d63f975, > + 0x0e330a81, 0xfc588982, 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d, > + 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622, 0x38cc2a06, 0xcaa7a905, > + 0xd9f75af1, 0x2b9cd9f2, 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed, > + 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530, 0x0417b1db, 0xf67c32d8, > + 0xe52cc12c, 0x1747422f, 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff, > + 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0, 0xd3d3e1ab, 0x21b862a8, > + 0x32e8915c, 0xc083125f, 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540, > + 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90, 0x9e902e7b, 0x6cfbad78, > + 0x7fab5e8c, 0x8dc0dd8f, 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee, > + 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1, 0x69e9f0d5, 0x9b8273d6, > + 0x88d28022, 0x7ab90321, 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e, > + 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81, 0x34f4f86a, 0xc69f7b69, > + 0xd5cf889d, 0x27a40b9e, 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e, > + 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351 > +}; > + > +/** > + Calculates the CRC32c checksum of the given buffer. > + > + @param[in] Buffer Pointer to the buffer. > + @param[in] Length Length of the buffer, in bytes. > + @param[in] InitialValue Initial value of the CRC. > + > + @return The CRC32c checksum. > +**/ > +UINT32 > +EFIAPI > +CalculateCrc32c ( > + IN CONST VOID *Buffer, > + IN UINTN Length, > + IN UINT32 InitialValue > + ) > +{ > + CONST UINT8 *Buf; > + UINT32 Crc; > + > + Buf = Buffer; > + Crc = ~InitialValue; > + > + while (Length-- != 0) { > + Crc = mCrc32cLookupTable[(Crc & 0xFF) ^ *(Buf++)] ^ (Crc >> 8); > + } > + > + return ~Crc; > +} > -- > 2.35.1 > > -- Pedro Falcato