From: stig Date: Sat, 12 Apr 2008 12:31:53 +0000 (+0000) Subject: From Philip Frey (bug 2420): X-Git-Url: http://git.samba.org/samba.git/?p=obnox%2Fwireshark%2Fwip.git;a=commitdiff_plain;h=daeb15669a09afc7edc952c333493809e9b618de From Philip Frey (bug 2420): Merge of the CRC32C calculation out of packet-iscsi.c and packet-sctp.c into the already existing crc32.c and crc32.h files. git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@24930 f5534014-38df-0310-8fa8-9805f1628bb7 --- diff --git a/epan/crc32.c b/epan/crc32.c index 9775a3be48..11062c0139 100644 --- a/epan/crc32.c +++ b/epan/crc32.c @@ -33,6 +33,79 @@ #include #include +/*****************************************************************/ +/* */ +/* CRC32C LOOKUP TABLE */ +/* +++================ */ +/* The following CRC lookup table was generated automagically */ +/* by the Rocksoft^tm Model CRC Algorithm Table Generation */ +/* Program V1.0 using the following model parameters: */ +/* */ +/* Width : 4 bytes. */ +/* Poly : 0x1EDC6F41L */ +/* Reverse : TRUE. */ +/* */ +/* For more information on the Rocksoft^tm Model CRC Algorithm, */ +/* see the document titled "A Painless Guide to CRC Error */ +/* Detection Algorithms" by Ross Williams */ +/* (ross@guest.adelaide.edu.au.). This document is likely to be */ +/* in the FTP archive "ftp.adelaide.edu.au/pub/rocksoft". */ +/* */ +/*****************************************************************/ +const guint32 crc32c_table[256] = { + 0x00000000L, 0xF26B8303L, 0xE13B70F7L, 0x1350F3F4L, 0xC79A971FL, + 0x35F1141CL, 0x26A1E7E8L, 0xD4CA64EBL, 0x8AD958CFL, 0x78B2DBCCL, + 0x6BE22838L, 0x9989AB3BL, 0x4D43CFD0L, 0xBF284CD3L, 0xAC78BF27L, + 0x5E133C24L, 0x105EC76FL, 0xE235446CL, 0xF165B798L, 0x030E349BL, + 0xD7C45070L, 0x25AFD373L, 0x36FF2087L, 0xC494A384L, 0x9A879FA0L, + 0x68EC1CA3L, 0x7BBCEF57L, 0x89D76C54L, 0x5D1D08BFL, 0xAF768BBCL, + 0xBC267848L, 0x4E4DFB4BL, 0x20BD8EDEL, 0xD2D60DDDL, 0xC186FE29L, + 0x33ED7D2AL, 0xE72719C1L, 0x154C9AC2L, 0x061C6936L, 0xF477EA35L, + 0xAA64D611L, 0x580F5512L, 0x4B5FA6E6L, 0xB93425E5L, 0x6DFE410EL, + 0x9F95C20DL, 0x8CC531F9L, 0x7EAEB2FAL, 0x30E349B1L, 0xC288CAB2L, + 0xD1D83946L, 0x23B3BA45L, 0xF779DEAEL, 0x05125DADL, 0x1642AE59L, + 0xE4292D5AL, 0xBA3A117EL, 0x4851927DL, 0x5B016189L, 0xA96AE28AL, + 0x7DA08661L, 0x8FCB0562L, 0x9C9BF696L, 0x6EF07595L, 0x417B1DBCL, + 0xB3109EBFL, 0xA0406D4BL, 0x522BEE48L, 0x86E18AA3L, 0x748A09A0L, + 0x67DAFA54L, 0x95B17957L, 0xCBA24573L, 0x39C9C670L, 0x2A993584L, + 0xD8F2B687L, 0x0C38D26CL, 0xFE53516FL, 0xED03A29BL, 0x1F682198L, + 0x5125DAD3L, 0xA34E59D0L, 0xB01EAA24L, 0x42752927L, 0x96BF4DCCL, + 0x64D4CECFL, 0x77843D3BL, 0x85EFBE38L, 0xDBFC821CL, 0x2997011FL, + 0x3AC7F2EBL, 0xC8AC71E8L, 0x1C661503L, 0xEE0D9600L, 0xFD5D65F4L, + 0x0F36E6F7L, 0x61C69362L, 0x93AD1061L, 0x80FDE395L, 0x72966096L, + 0xA65C047DL, 0x5437877EL, 0x4767748AL, 0xB50CF789L, 0xEB1FCBADL, + 0x197448AEL, 0x0A24BB5AL, 0xF84F3859L, 0x2C855CB2L, 0xDEEEDFB1L, + 0xCDBE2C45L, 0x3FD5AF46L, 0x7198540DL, 0x83F3D70EL, 0x90A324FAL, + 0x62C8A7F9L, 0xB602C312L, 0x44694011L, 0x5739B3E5L, 0xA55230E6L, + 0xFB410CC2L, 0x092A8FC1L, 0x1A7A7C35L, 0xE811FF36L, 0x3CDB9BDDL, + 0xCEB018DEL, 0xDDE0EB2AL, 0x2F8B6829L, 0x82F63B78L, 0x709DB87BL, + 0x63CD4B8FL, 0x91A6C88CL, 0x456CAC67L, 0xB7072F64L, 0xA457DC90L, + 0x563C5F93L, 0x082F63B7L, 0xFA44E0B4L, 0xE9141340L, 0x1B7F9043L, + 0xCFB5F4A8L, 0x3DDE77ABL, 0x2E8E845FL, 0xDCE5075CL, 0x92A8FC17L, + 0x60C37F14L, 0x73938CE0L, 0x81F80FE3L, 0x55326B08L, 0xA759E80BL, + 0xB4091BFFL, 0x466298FCL, 0x1871A4D8L, 0xEA1A27DBL, 0xF94AD42FL, + 0x0B21572CL, 0xDFEB33C7L, 0x2D80B0C4L, 0x3ED04330L, 0xCCBBC033L, + 0xA24BB5A6L, 0x502036A5L, 0x4370C551L, 0xB11B4652L, 0x65D122B9L, + 0x97BAA1BAL, 0x84EA524EL, 0x7681D14DL, 0x2892ED69L, 0xDAF96E6AL, + 0xC9A99D9EL, 0x3BC21E9DL, 0xEF087A76L, 0x1D63F975L, 0x0E330A81L, + 0xFC588982L, 0xB21572C9L, 0x407EF1CAL, 0x532E023EL, 0xA145813DL, + 0x758FE5D6L, 0x87E466D5L, 0x94B49521L, 0x66DF1622L, 0x38CC2A06L, + 0xCAA7A905L, 0xD9F75AF1L, 0x2B9CD9F2L, 0xFF56BD19L, 0x0D3D3E1AL, + 0x1E6DCDEEL, 0xEC064EEDL, 0xC38D26C4L, 0x31E6A5C7L, 0x22B65633L, + 0xD0DDD530L, 0x0417B1DBL, 0xF67C32D8L, 0xE52CC12CL, 0x1747422FL, + 0x49547E0BL, 0xBB3FFD08L, 0xA86F0EFCL, 0x5A048DFFL, 0x8ECEE914L, + 0x7CA56A17L, 0x6FF599E3L, 0x9D9E1AE0L, 0xD3D3E1ABL, 0x21B862A8L, + 0x32E8915CL, 0xC083125FL, 0x144976B4L, 0xE622F5B7L, 0xF5720643L, + 0x07198540L, 0x590AB964L, 0xAB613A67L, 0xB831C993L, 0x4A5A4A90L, + 0x9E902E7BL, 0x6CFBAD78L, 0x7FAB5E8CL, 0x8DC0DD8FL, 0xE330A81AL, + 0x115B2B19L, 0x020BD8EDL, 0xF0605BEEL, 0x24AA3F05L, 0xD6C1BC06L, + 0xC5914FF2L, 0x37FACCF1L, 0x69E9F0D5L, 0x9B8273D6L, 0x88D28022L, + 0x7AB90321L, 0xAE7367CAL, 0x5C18E4C9L, 0x4F48173DL, 0xBD23943EL, + 0xF36E6F75L, 0x0105EC76L, 0x12551F82L, 0xE03E9C81L, 0x34F4F86AL, + 0xC69F7B69L, 0xD5CF889DL, 0x27A40B9EL, 0x79B737BAL, 0x8BDCB4B9L, + 0x988C474DL, 0x6AE7C44EL, 0xBE2DA0A5L, 0x4C4623A6L, 0x5F16D052L, + 0xAD7D5351L }; + /* * Table for the AUTODIN/HDLC/802.x CRC. * @@ -98,6 +171,16 @@ const guint32 crc32_ccitt_table[256] = { #define CRC32_CCITT_SEED 0xFFFFFFFF +guint32 calculate_crc32c(const void *buf, int len, guint32 crc) +{ + const guint8 *p = (const guint8 *)buf; + crc = CRC32C_SWAP(crc); + while (len-- > 0) { + CRC32C(crc, *p++); + } + return CRC32C_SWAP(crc); +} + guint32 crc32_ccitt(const guint8 *buf, guint len) { diff --git a/epan/crc32.h b/epan/crc32.h index b497b04290..8de3148e38 100644 --- a/epan/crc32.h +++ b/epan/crc32.h @@ -31,6 +31,28 @@ extern "C" { #endif /* __cplusplus */ +#define CRC32C_PRELOAD 0xffffffff + +/* + * Byte swap fix contributed by Dave Wysochanski . + */ +#define CRC32C_SWAP(crc32c_value) \ + (((crc32c_value & 0xff000000) >> 24) | \ + ((crc32c_value & 0x00ff0000) >> 8) | \ + ((crc32c_value & 0x0000ff00) << 8) | \ + ((crc32c_value & 0x000000ff) << 24)) + +#define CRC32C(c,d) (c=(c>>8)^crc32c_table[(c^(d))&0xFF]) + +extern const guint32 crc32c_table[256]; + +/** Compute CRC32C checksum of a buffer of data. + @param buf The buffer containing the data. + @param len The number of bytes to include in the computation. + @param crc The preload value for the CRC32C computation. + @return The CRC32C checksum. */ +extern guint32 calculate_crc32c(const void *buf, int len, guint32 crc); + extern const guint32 crc32_ccitt_table[256]; /** Compute CRC32 CCITT checksum of a buffer of data. diff --git a/epan/dissectors/packet-iscsi.c b/epan/dissectors/packet-iscsi.c index 0fcfe6e625..7f710244d9 100644 --- a/epan/dissectors/packet-iscsi.c +++ b/epan/dissectors/packet-iscsi.c @@ -48,6 +48,7 @@ #include "packet-scsi.h" #include "epan/nstime.h" #include +#include /* the absolute values of these constants don't matter as long as * latter revisions of the protocol are assigned a larger number */ @@ -510,117 +511,6 @@ static const value_string iscsi_reject_reasons[] = { {0, NULL}, }; -/*****************************************************************/ -/* */ -/* CRC LOOKUP TABLE */ -/* ================ */ -/* The following CRC lookup table was generated automagically */ -/* by the Rocksoft^tm Model CRC Algorithm Table Generation */ -/* Program V1.0 using the following model parameters: */ -/* */ -/* Width : 4 bytes. */ -/* Poly : 0x1EDC6F41L */ -/* Reverse : TRUE. */ -/* */ -/* For more information on the Rocksoft^tm Model CRC Algorithm, */ -/* see the document titled "A Painless Guide to CRC Error */ -/* Detection Algorithms" by Ross Williams */ -/* (ross@guest.adelaide.edu.au.). This document is likely to be */ -/* in the FTP archive "ftp.adelaide.edu.au/pub/rocksoft". */ -/* */ -/*****************************************************************/ - -static guint32 crc32Table[256] = { - 0x00000000L, 0xF26B8303L, 0xE13B70F7L, 0x1350F3F4L, - 0xC79A971FL, 0x35F1141CL, 0x26A1E7E8L, 0xD4CA64EBL, - 0x8AD958CFL, 0x78B2DBCCL, 0x6BE22838L, 0x9989AB3BL, - 0x4D43CFD0L, 0xBF284CD3L, 0xAC78BF27L, 0x5E133C24L, - 0x105EC76FL, 0xE235446CL, 0xF165B798L, 0x030E349BL, - 0xD7C45070L, 0x25AFD373L, 0x36FF2087L, 0xC494A384L, - 0x9A879FA0L, 0x68EC1CA3L, 0x7BBCEF57L, 0x89D76C54L, - 0x5D1D08BFL, 0xAF768BBCL, 0xBC267848L, 0x4E4DFB4BL, - 0x20BD8EDEL, 0xD2D60DDDL, 0xC186FE29L, 0x33ED7D2AL, - 0xE72719C1L, 0x154C9AC2L, 0x061C6936L, 0xF477EA35L, - 0xAA64D611L, 0x580F5512L, 0x4B5FA6E6L, 0xB93425E5L, - 0x6DFE410EL, 0x9F95C20DL, 0x8CC531F9L, 0x7EAEB2FAL, - 0x30E349B1L, 0xC288CAB2L, 0xD1D83946L, 0x23B3BA45L, - 0xF779DEAEL, 0x05125DADL, 0x1642AE59L, 0xE4292D5AL, - 0xBA3A117EL, 0x4851927DL, 0x5B016189L, 0xA96AE28AL, - 0x7DA08661L, 0x8FCB0562L, 0x9C9BF696L, 0x6EF07595L, - 0x417B1DBCL, 0xB3109EBFL, 0xA0406D4BL, 0x522BEE48L, - 0x86E18AA3L, 0x748A09A0L, 0x67DAFA54L, 0x95B17957L, - 0xCBA24573L, 0x39C9C670L, 0x2A993584L, 0xD8F2B687L, - 0x0C38D26CL, 0xFE53516FL, 0xED03A29BL, 0x1F682198L, - 0x5125DAD3L, 0xA34E59D0L, 0xB01EAA24L, 0x42752927L, - 0x96BF4DCCL, 0x64D4CECFL, 0x77843D3BL, 0x85EFBE38L, - 0xDBFC821CL, 0x2997011FL, 0x3AC7F2EBL, 0xC8AC71E8L, - 0x1C661503L, 0xEE0D9600L, 0xFD5D65F4L, 0x0F36E6F7L, - 0x61C69362L, 0x93AD1061L, 0x80FDE395L, 0x72966096L, - 0xA65C047DL, 0x5437877EL, 0x4767748AL, 0xB50CF789L, - 0xEB1FCBADL, 0x197448AEL, 0x0A24BB5AL, 0xF84F3859L, - 0x2C855CB2L, 0xDEEEDFB1L, 0xCDBE2C45L, 0x3FD5AF46L, - 0x7198540DL, 0x83F3D70EL, 0x90A324FAL, 0x62C8A7F9L, - 0xB602C312L, 0x44694011L, 0x5739B3E5L, 0xA55230E6L, - 0xFB410CC2L, 0x092A8FC1L, 0x1A7A7C35L, 0xE811FF36L, - 0x3CDB9BDDL, 0xCEB018DEL, 0xDDE0EB2AL, 0x2F8B6829L, - 0x82F63B78L, 0x709DB87BL, 0x63CD4B8FL, 0x91A6C88CL, - 0x456CAC67L, 0xB7072F64L, 0xA457DC90L, 0x563C5F93L, - 0x082F63B7L, 0xFA44E0B4L, 0xE9141340L, 0x1B7F9043L, - 0xCFB5F4A8L, 0x3DDE77ABL, 0x2E8E845FL, 0xDCE5075CL, - 0x92A8FC17L, 0x60C37F14L, 0x73938CE0L, 0x81F80FE3L, - 0x55326B08L, 0xA759E80BL, 0xB4091BFFL, 0x466298FCL, - 0x1871A4D8L, 0xEA1A27DBL, 0xF94AD42FL, 0x0B21572CL, - 0xDFEB33C7L, 0x2D80B0C4L, 0x3ED04330L, 0xCCBBC033L, - 0xA24BB5A6L, 0x502036A5L, 0x4370C551L, 0xB11B4652L, - 0x65D122B9L, 0x97BAA1BAL, 0x84EA524EL, 0x7681D14DL, - 0x2892ED69L, 0xDAF96E6AL, 0xC9A99D9EL, 0x3BC21E9DL, - 0xEF087A76L, 0x1D63F975L, 0x0E330A81L, 0xFC588982L, - 0xB21572C9L, 0x407EF1CAL, 0x532E023EL, 0xA145813DL, - 0x758FE5D6L, 0x87E466D5L, 0x94B49521L, 0x66DF1622L, - 0x38CC2A06L, 0xCAA7A905L, 0xD9F75AF1L, 0x2B9CD9F2L, - 0xFF56BD19L, 0x0D3D3E1AL, 0x1E6DCDEEL, 0xEC064EEDL, - 0xC38D26C4L, 0x31E6A5C7L, 0x22B65633L, 0xD0DDD530L, - 0x0417B1DBL, 0xF67C32D8L, 0xE52CC12CL, 0x1747422FL, - 0x49547E0BL, 0xBB3FFD08L, 0xA86F0EFCL, 0x5A048DFFL, - 0x8ECEE914L, 0x7CA56A17L, 0x6FF599E3L, 0x9D9E1AE0L, - 0xD3D3E1ABL, 0x21B862A8L, 0x32E8915CL, 0xC083125FL, - 0x144976B4L, 0xE622F5B7L, 0xF5720643L, 0x07198540L, - 0x590AB964L, 0xAB613A67L, 0xB831C993L, 0x4A5A4A90L, - 0x9E902E7BL, 0x6CFBAD78L, 0x7FAB5E8CL, 0x8DC0DD8FL, - 0xE330A81AL, 0x115B2B19L, 0x020BD8EDL, 0xF0605BEEL, - 0x24AA3F05L, 0xD6C1BC06L, 0xC5914FF2L, 0x37FACCF1L, - 0x69E9F0D5L, 0x9B8273D6L, 0x88D28022L, 0x7AB90321L, - 0xAE7367CAL, 0x5C18E4C9L, 0x4F48173DL, 0xBD23943EL, - 0xF36E6F75L, 0x0105EC76L, 0x12551F82L, 0xE03E9C81L, - 0x34F4F86AL, 0xC69F7B69L, 0xD5CF889DL, 0x27A40B9EL, - 0x79B737BAL, 0x8BDCB4B9L, 0x988C474DL, 0x6AE7C44EL, - 0xBE2DA0A5L, 0x4C4623A6L, 0x5F16D052L, 0xAD7D5351L -}; - -#define CRC32C_PRELOAD 0xffffffff - -/* - * Byte swap fix contributed by Dave Wysochanski - */ -#define CRC32C_SWAP(crc32c_value) \ - (((crc32c_value & 0xff000000) >> 24) | \ - ((crc32c_value & 0x00ff0000) >> 8) | \ - ((crc32c_value & 0x0000ff00) << 8) | \ - ((crc32c_value & 0x000000ff) << 24)) - -static guint32 -calculateCRC32(const void *buf, int len, guint32 crc) { - const guint8 *p = (const guint8 *)buf; - crc = CRC32C_SWAP(crc); - while(len-- > 0) - crc = crc32Table[(crc ^ *p++) & 0xff] ^ (crc >> 8); - return CRC32C_SWAP(crc); -} - - - - - /* structure and functions to keep track of * COMMAND/DATA_IN/DATA_OUT/RESPONSE matching */ @@ -657,7 +547,7 @@ handleHeaderDigest(iscsi_session_t *iscsi_session, proto_item *ti, tvbuff_t *tvb switch(iscsi_session->header_digest){ case ISCSI_HEADER_DIGEST_CRC32: if(available_bytes >= (headerLen + 4)) { - guint32 crc = ~calculateCRC32(tvb_get_ptr(tvb, offset, headerLen), headerLen, CRC32C_PRELOAD); + guint32 crc = ~calculate_crc32c(tvb_get_ptr(tvb, offset, headerLen), headerLen, CRC32C_PRELOAD); guint32 sent = tvb_get_ntohl(tvb, offset + headerLen); if(crc == sent) { proto_tree_add_uint_format(ti, hf_iscsi_HeaderDigest32, tvb, offset + headerLen, 4, sent, "HeaderDigest: 0x%08x (Good CRC32)", sent); @@ -676,7 +566,7 @@ handleDataDigest(proto_item *ti, tvbuff_t *tvb, guint offset, int dataLen) { if(enableDataDigests) { if(dataDigestIsCRC32) { if(available_bytes >= (dataLen + 4)) { - guint32 crc = ~calculateCRC32(tvb_get_ptr(tvb, offset, dataLen), dataLen, CRC32C_PRELOAD); + guint32 crc = ~calculate_crc32c(tvb_get_ptr(tvb, offset, dataLen), dataLen, CRC32C_PRELOAD); guint32 sent = tvb_get_ntohl(tvb, offset + dataLen); if(crc == sent) { proto_tree_add_uint_format(ti, hf_iscsi_DataDigest32, tvb, offset + dataLen, 4, sent, "DataDigest: 0x%08x (Good CRC32)", sent); @@ -2360,7 +2250,7 @@ dissect_iscsi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, gboolean chec if(digestsActive && (available_bytes>=(guint32) (48+4+ahsLen*4)) && (iscsi_session->header_digest==ISCSI_HEADER_DIGEST_AUTO) ){ guint32 crc; /* we have enough data to test if HeaderDigest is enabled */ - crc= ~calculateCRC32(tvb_get_ptr(tvb, offset, 48+ahsLen*4), 48+ahsLen*4, CRC32C_PRELOAD); + crc= ~calculate_crc32c(tvb_get_ptr(tvb, offset, 48+ahsLen*4), 48+ahsLen*4, CRC32C_PRELOAD); if(crc==tvb_get_ntohl(tvb,48+ahsLen*4)){ iscsi_session->header_digest=ISCSI_HEADER_DIGEST_CRC32; } else { diff --git a/epan/dissectors/packet-sctp.c b/epan/dissectors/packet-sctp.c index 94a2eb2b89..1e33a37442 100644 --- a/epan/dissectors/packet-sctp.c +++ b/epan/dissectors/packet-sctp.c @@ -61,6 +61,7 @@ #include #include #include +#include #define LT(x, y) ((gint32)((x) - (y)) < 0) @@ -420,92 +421,12 @@ sctp_adler32(const unsigned char* buf, unsigned int len) return (s2 << 16) | s1; } -/* The CRC32C code is taken from draft-ietf-tsvwg-sctpcsum-01.txt. - * That code is copyrighted by D. Otis and has been modified. - * - * Polynomial is - * - * x^32 + x^28 + x^27 + x^26 + x^25 + x^23 + x^22 + x^20 + x^19 + - * x^18 + x^14 + x^13 + x^11 + x^10 + x^9 + x^8 + x^6 + 1 - * - * Note that this is not the AUTODIN/HDLC/802.x CRC - it uses a different - * polynomial. - */ - -#define CRC32C(c,d) (c=(c>>8)^crc_c[(c^(d))&0xFF]) -static guint32 crc_c[256] = -{ -0x00000000L, 0xF26B8303L, 0xE13B70F7L, 0x1350F3F4L, -0xC79A971FL, 0x35F1141CL, 0x26A1E7E8L, 0xD4CA64EBL, -0x8AD958CFL, 0x78B2DBCCL, 0x6BE22838L, 0x9989AB3BL, -0x4D43CFD0L, 0xBF284CD3L, 0xAC78BF27L, 0x5E133C24L, -0x105EC76FL, 0xE235446CL, 0xF165B798L, 0x030E349BL, -0xD7C45070L, 0x25AFD373L, 0x36FF2087L, 0xC494A384L, -0x9A879FA0L, 0x68EC1CA3L, 0x7BBCEF57L, 0x89D76C54L, -0x5D1D08BFL, 0xAF768BBCL, 0xBC267848L, 0x4E4DFB4BL, -0x20BD8EDEL, 0xD2D60DDDL, 0xC186FE29L, 0x33ED7D2AL, -0xE72719C1L, 0x154C9AC2L, 0x061C6936L, 0xF477EA35L, -0xAA64D611L, 0x580F5512L, 0x4B5FA6E6L, 0xB93425E5L, -0x6DFE410EL, 0x9F95C20DL, 0x8CC531F9L, 0x7EAEB2FAL, -0x30E349B1L, 0xC288CAB2L, 0xD1D83946L, 0x23B3BA45L, -0xF779DEAEL, 0x05125DADL, 0x1642AE59L, 0xE4292D5AL, -0xBA3A117EL, 0x4851927DL, 0x5B016189L, 0xA96AE28AL, -0x7DA08661L, 0x8FCB0562L, 0x9C9BF696L, 0x6EF07595L, -0x417B1DBCL, 0xB3109EBFL, 0xA0406D4BL, 0x522BEE48L, -0x86E18AA3L, 0x748A09A0L, 0x67DAFA54L, 0x95B17957L, -0xCBA24573L, 0x39C9C670L, 0x2A993584L, 0xD8F2B687L, -0x0C38D26CL, 0xFE53516FL, 0xED03A29BL, 0x1F682198L, -0x5125DAD3L, 0xA34E59D0L, 0xB01EAA24L, 0x42752927L, -0x96BF4DCCL, 0x64D4CECFL, 0x77843D3BL, 0x85EFBE38L, -0xDBFC821CL, 0x2997011FL, 0x3AC7F2EBL, 0xC8AC71E8L, -0x1C661503L, 0xEE0D9600L, 0xFD5D65F4L, 0x0F36E6F7L, -0x61C69362L, 0x93AD1061L, 0x80FDE395L, 0x72966096L, -0xA65C047DL, 0x5437877EL, 0x4767748AL, 0xB50CF789L, -0xEB1FCBADL, 0x197448AEL, 0x0A24BB5AL, 0xF84F3859L, -0x2C855CB2L, 0xDEEEDFB1L, 0xCDBE2C45L, 0x3FD5AF46L, -0x7198540DL, 0x83F3D70EL, 0x90A324FAL, 0x62C8A7F9L, -0xB602C312L, 0x44694011L, 0x5739B3E5L, 0xA55230E6L, -0xFB410CC2L, 0x092A8FC1L, 0x1A7A7C35L, 0xE811FF36L, -0x3CDB9BDDL, 0xCEB018DEL, 0xDDE0EB2AL, 0x2F8B6829L, -0x82F63B78L, 0x709DB87BL, 0x63CD4B8FL, 0x91A6C88CL, -0x456CAC67L, 0xB7072F64L, 0xA457DC90L, 0x563C5F93L, -0x082F63B7L, 0xFA44E0B4L, 0xE9141340L, 0x1B7F9043L, -0xCFB5F4A8L, 0x3DDE77ABL, 0x2E8E845FL, 0xDCE5075CL, -0x92A8FC17L, 0x60C37F14L, 0x73938CE0L, 0x81F80FE3L, -0x55326B08L, 0xA759E80BL, 0xB4091BFFL, 0x466298FCL, -0x1871A4D8L, 0xEA1A27DBL, 0xF94AD42FL, 0x0B21572CL, -0xDFEB33C7L, 0x2D80B0C4L, 0x3ED04330L, 0xCCBBC033L, -0xA24BB5A6L, 0x502036A5L, 0x4370C551L, 0xB11B4652L, -0x65D122B9L, 0x97BAA1BAL, 0x84EA524EL, 0x7681D14DL, -0x2892ED69L, 0xDAF96E6AL, 0xC9A99D9EL, 0x3BC21E9DL, -0xEF087A76L, 0x1D63F975L, 0x0E330A81L, 0xFC588982L, -0xB21572C9L, 0x407EF1CAL, 0x532E023EL, 0xA145813DL, -0x758FE5D6L, 0x87E466D5L, 0x94B49521L, 0x66DF1622L, -0x38CC2A06L, 0xCAA7A905L, 0xD9F75AF1L, 0x2B9CD9F2L, -0xFF56BD19L, 0x0D3D3E1AL, 0x1E6DCDEEL, 0xEC064EEDL, -0xC38D26C4L, 0x31E6A5C7L, 0x22B65633L, 0xD0DDD530L, -0x0417B1DBL, 0xF67C32D8L, 0xE52CC12CL, 0x1747422FL, -0x49547E0BL, 0xBB3FFD08L, 0xA86F0EFCL, 0x5A048DFFL, -0x8ECEE914L, 0x7CA56A17L, 0x6FF599E3L, 0x9D9E1AE0L, -0xD3D3E1ABL, 0x21B862A8L, 0x32E8915CL, 0xC083125FL, -0x144976B4L, 0xE622F5B7L, 0xF5720643L, 0x07198540L, -0x590AB964L, 0xAB613A67L, 0xB831C993L, 0x4A5A4A90L, -0x9E902E7BL, 0x6CFBAD78L, 0x7FAB5E8CL, 0x8DC0DD8FL, -0xE330A81AL, 0x115B2B19L, 0x020BD8EDL, 0xF0605BEEL, -0x24AA3F05L, 0xD6C1BC06L, 0xC5914FF2L, 0x37FACCF1L, -0x69E9F0D5L, 0x9B8273D6L, 0x88D28022L, 0x7AB90321L, -0xAE7367CAL, 0x5C18E4C9L, 0x4F48173DL, 0xBD23943EL, -0xF36E6F75L, 0x0105EC76L, 0x12551F82L, 0xE03E9C81L, -0x34F4F86AL, 0xC69F7B69L, 0xD5CF889DL, 0x27A40B9EL, -0x79B737BAL, 0x8BDCB4B9L, 0x988C474DL, 0x6AE7C44EL, -0xBE2DA0A5L, 0x4C4623A6L, 0x5F16D052L, 0xAD7D5351L, -}; static guint32 sctp_crc32c(const unsigned char* buf, unsigned int len) { unsigned int i; - guint32 crc32 = ~0U; + guint32 crc32 = CRC32C_PRELOAD; guint32 result; unsigned char byte0,byte1,byte2,byte3;