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netwerk/sctp/src/netinet/sctp_crc32.c@97036ab72558 (annotated)

netwerk/sctp/src/netinet/sctp_crc32.c

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rwxr-xr-x

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /*-
michael@0 2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
michael@0 3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
michael@0 4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
michael@0 5 *
michael@0 6 * Redistribution and use in source and binary forms, with or without
michael@0 7 * modification, are permitted provided that the following conditions are met:
michael@0 8 *
michael@0 9 * a) Redistributions of source code must retain the above copyright notice,
michael@0 10 * this list of conditions and the following disclaimer.
michael@0 11 *
michael@0 12 * b) Redistributions in binary form must reproduce the above copyright
michael@0 13 * notice, this list of conditions and the following disclaimer in
michael@0 14 * the documentation and/or other materials provided with the distribution.
michael@0 15 *
michael@0 16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
michael@0 17 * contributors may be used to endorse or promote products derived
michael@0 18 * from this software without specific prior written permission.
michael@0 19 *
michael@0 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
michael@0 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
michael@0 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
michael@0 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
michael@0 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
michael@0 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
michael@0 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
michael@0 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
michael@0 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
michael@0 30 * THE POSSIBILITY OF SUCH DAMAGE.
michael@0 31 */
michael@0 32
michael@0 33 #ifdef __FreeBSD__
michael@0 34 #include <sys/cdefs.h>
michael@0 35 __FBSDID("$FreeBSD: head/sys/netinet/sctp_crc32.c 235828 2012-05-23 11:26:28Z tuexen $");
michael@0 36 #endif
michael@0 37
michael@0 38 #include <netinet/sctp_os.h>
michael@0 39 #include <netinet/sctp.h>
michael@0 40 #include <netinet/sctp_crc32.h>
michael@0 41 #include <netinet/sctp_pcb.h>
michael@0 42
michael@0 43
michael@0 44 #if !defined(SCTP_WITH_NO_CSUM)
michael@0 45 #if defined(__FreeBSD__) && __FreeBSD_version >= 800000
michael@0 46 #else
michael@0 47 /**
michael@0 48 *
michael@0 49 * Routine Description:
michael@0 50 *
michael@0 51 * Computes the CRC32c checksum for the specified buffer using the slicing by 8
michael@0 52 * algorithm over 64 bit quantities.
michael@0 53 *
michael@0 54 * Arguments:
michael@0 55 *
michael@0 56 * p_running_crc - pointer to the initial or final remainder value
michael@0 57 * used in CRC computations. It should be set to
michael@0 58 * non-NULL if the mode argument is equal to CONT or END
michael@0 59 * p_buf - the packet buffer where crc computations are being performed
michael@0 60 * length - the length of p_buf in bytes
michael@0 61 * init_bytes - the number of initial bytes that need to be procesed before
michael@0 62 * aligning p_buf to multiples of 4 bytes
michael@0 63 * mode - can be any of the following: BEGIN, CONT, END, BODY, ALIGN
michael@0 64 *
michael@0 65 * Return value:
michael@0 66 *
michael@0 67 * The computed CRC32c value
michael@0 68 */
michael@0 69
michael@0 70
michael@0 71 /*
michael@0 72 * Copyright (c) 2004-2006 Intel Corporation - All Rights Reserved
michael@0 73 *
michael@0 74 *
michael@0 75 * This software program is licensed subject to the BSD License, available at
michael@0 76 * http://www.opensource.org/licenses/bsd-license.html.
michael@0 77 *
michael@0 78 * Abstract:
michael@0 79 *
michael@0 80 * Tables for software CRC generation
michael@0 81 */
michael@0 82
michael@0 83 /*
michael@0 84 * The following CRC lookup table was generated automagically using the
michael@0 85 * following model parameters:
michael@0 86 *
michael@0 87 * Generator Polynomial = ................. 0x1EDC6F41
michael@0 88 * Generator Polynomial Length = .......... 32 bits
michael@0 89 * Reflected Bits = ....................... TRUE
michael@0 90 * Table Generation Offset = .............. 32 bits
michael@0 91 * Number of Slices = ..................... 8 slices
michael@0 92 * Slice Lengths = ........................ 8 8 8 8 8 8 8 8
michael@0 93 * Directory Name = ....................... .\
michael@0 94 * File Name = ............................ 8x256_tables.c
michael@0 95 */
michael@0 96
michael@0 97 static uint32_t sctp_crc_tableil8_o32[256] =
michael@0 98 {
michael@0 99 0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4, 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
michael@0 100 0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B, 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
michael@0 101 0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B, 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
michael@0 102 0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54, 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
michael@0 103 0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A, 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
michael@0 104 0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5, 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
michael@0 105 0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45, 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
michael@0 106 0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A, 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
michael@0 107 0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48, 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
michael@0 108 0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687, 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
michael@0 109 0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927, 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
michael@0 110 0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8, 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
michael@0 111 0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096, 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
michael@0 112 0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859, 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
michael@0 113 0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9, 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
michael@0 114 0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36, 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
michael@0 115 0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C, 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
michael@0 116 0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043, 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
michael@0 117 0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3, 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
michael@0 118 0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C, 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
michael@0 119 0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652, 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
michael@0 120 0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D, 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
michael@0 121 0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D, 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
michael@0 122 0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2, 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
michael@0 123 0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530, 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
michael@0 124 0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF, 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
michael@0 125 0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F, 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
michael@0 126 0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90, 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
michael@0 127 0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE, 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
michael@0 128 0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321, 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
michael@0 129 0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81, 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
michael@0 130 0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E, 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351
michael@0 131 };
michael@0 132
michael@0 133 /*
michael@0 134 * end of the CRC lookup table crc_tableil8_o32
michael@0 135 */
michael@0 136
michael@0 137
michael@0 138
michael@0 139 /*
michael@0 140 * The following CRC lookup table was generated automagically using the
michael@0 141 * following model parameters:
michael@0 142 *
michael@0 143 * Generator Polynomial = ................. 0x1EDC6F41
michael@0 144 * Generator Polynomial Length = .......... 32 bits
michael@0 145 * Reflected Bits = ....................... TRUE
michael@0 146 * Table Generation Offset = .............. 32 bits
michael@0 147 * Number of Slices = ..................... 8 slices
michael@0 148 * Slice Lengths = ........................ 8 8 8 8 8 8 8 8
michael@0 149 * Directory Name = ....................... .\
michael@0 150 * File Name = ............................ 8x256_tables.c
michael@0 151 */
michael@0 152
michael@0 153 static uint32_t sctp_crc_tableil8_o40[256] =
michael@0 154 {
michael@0 155 0x00000000, 0x13A29877, 0x274530EE, 0x34E7A899, 0x4E8A61DC, 0x5D28F9AB, 0x69CF5132, 0x7A6DC945,
michael@0 156 0x9D14C3B8, 0x8EB65BCF, 0xBA51F356, 0xA9F36B21, 0xD39EA264, 0xC03C3A13, 0xF4DB928A, 0xE7790AFD,
michael@0 157 0x3FC5F181, 0x2C6769F6, 0x1880C16F, 0x0B225918, 0x714F905D, 0x62ED082A, 0x560AA0B3, 0x45A838C4,
michael@0 158 0xA2D13239, 0xB173AA4E, 0x859402D7, 0x96369AA0, 0xEC5B53E5, 0xFFF9CB92, 0xCB1E630B, 0xD8BCFB7C,
michael@0 159 0x7F8BE302, 0x6C297B75, 0x58CED3EC, 0x4B6C4B9B, 0x310182DE, 0x22A31AA9, 0x1644B230, 0x05E62A47,
michael@0 160 0xE29F20BA, 0xF13DB8CD, 0xC5DA1054, 0xD6788823, 0xAC154166, 0xBFB7D911, 0x8B507188, 0x98F2E9FF,
michael@0 161 0x404E1283, 0x53EC8AF4, 0x670B226D, 0x74A9BA1A, 0x0EC4735F, 0x1D66EB28, 0x298143B1, 0x3A23DBC6,
michael@0 162 0xDD5AD13B, 0xCEF8494C, 0xFA1FE1D5, 0xE9BD79A2, 0x93D0B0E7, 0x80722890, 0xB4958009, 0xA737187E,
michael@0 163 0xFF17C604, 0xECB55E73, 0xD852F6EA, 0xCBF06E9D, 0xB19DA7D8, 0xA23F3FAF, 0x96D89736, 0x857A0F41,
michael@0 164 0x620305BC, 0x71A19DCB, 0x45463552, 0x56E4AD25, 0x2C896460, 0x3F2BFC17, 0x0BCC548E, 0x186ECCF9,
michael@0 165 0xC0D23785, 0xD370AFF2, 0xE797076B, 0xF4359F1C, 0x8E585659, 0x9DFACE2E, 0xA91D66B7, 0xBABFFEC0,
michael@0 166 0x5DC6F43D, 0x4E646C4A, 0x7A83C4D3, 0x69215CA4, 0x134C95E1, 0x00EE0D96, 0x3409A50F, 0x27AB3D78,
michael@0 167 0x809C2506, 0x933EBD71, 0xA7D915E8, 0xB47B8D9F, 0xCE1644DA, 0xDDB4DCAD, 0xE9537434, 0xFAF1EC43,
michael@0 168 0x1D88E6BE, 0x0E2A7EC9, 0x3ACDD650, 0x296F4E27, 0x53028762, 0x40A01F15, 0x7447B78C, 0x67E52FFB,
michael@0 169 0xBF59D487, 0xACFB4CF0, 0x981CE469, 0x8BBE7C1E, 0xF1D3B55B, 0xE2712D2C, 0xD69685B5, 0xC5341DC2,
michael@0 170 0x224D173F, 0x31EF8F48, 0x050827D1, 0x16AABFA6, 0x6CC776E3, 0x7F65EE94, 0x4B82460D, 0x5820DE7A,
michael@0 171 0xFBC3FAF9, 0xE861628E, 0xDC86CA17, 0xCF245260, 0xB5499B25, 0xA6EB0352, 0x920CABCB, 0x81AE33BC,
michael@0 172 0x66D73941, 0x7575A136, 0x419209AF, 0x523091D8, 0x285D589D, 0x3BFFC0EA, 0x0F186873, 0x1CBAF004,
michael@0 173 0xC4060B78, 0xD7A4930F, 0xE3433B96, 0xF0E1A3E1, 0x8A8C6AA4, 0x992EF2D3, 0xADC95A4A, 0xBE6BC23D,
michael@0 174 0x5912C8C0, 0x4AB050B7, 0x7E57F82E, 0x6DF56059, 0x1798A91C, 0x043A316B, 0x30DD99F2, 0x237F0185,
michael@0 175 0x844819FB, 0x97EA818C, 0xA30D2915, 0xB0AFB162, 0xCAC27827, 0xD960E050, 0xED8748C9, 0xFE25D0BE,
michael@0 176 0x195CDA43, 0x0AFE4234, 0x3E19EAAD, 0x2DBB72DA, 0x57D6BB9F, 0x447423E8, 0x70938B71, 0x63311306,
michael@0 177 0xBB8DE87A, 0xA82F700D, 0x9CC8D894, 0x8F6A40E3, 0xF50789A6, 0xE6A511D1, 0xD242B948, 0xC1E0213F,
michael@0 178 0x26992BC2, 0x353BB3B5, 0x01DC1B2C, 0x127E835B, 0x68134A1E, 0x7BB1D269, 0x4F567AF0, 0x5CF4E287,
michael@0 179 0x04D43CFD, 0x1776A48A, 0x23910C13, 0x30339464, 0x4A5E5D21, 0x59FCC556, 0x6D1B6DCF, 0x7EB9F5B8,
michael@0 180 0x99C0FF45, 0x8A626732, 0xBE85CFAB, 0xAD2757DC, 0xD74A9E99, 0xC4E806EE, 0xF00FAE77, 0xE3AD3600,
michael@0 181 0x3B11CD7C, 0x28B3550B, 0x1C54FD92, 0x0FF665E5, 0x759BACA0, 0x663934D7, 0x52DE9C4E, 0x417C0439,
michael@0 182 0xA6050EC4, 0xB5A796B3, 0x81403E2A, 0x92E2A65D, 0xE88F6F18, 0xFB2DF76F, 0xCFCA5FF6, 0xDC68C781,
michael@0 183 0x7B5FDFFF, 0x68FD4788, 0x5C1AEF11, 0x4FB87766, 0x35D5BE23, 0x26772654, 0x12908ECD, 0x013216BA,
michael@0 184 0xE64B1C47, 0xF5E98430, 0xC10E2CA9, 0xD2ACB4DE, 0xA8C17D9B, 0xBB63E5EC, 0x8F844D75, 0x9C26D502,
michael@0 185 0x449A2E7E, 0x5738B609, 0x63DF1E90, 0x707D86E7, 0x0A104FA2, 0x19B2D7D5, 0x2D557F4C, 0x3EF7E73B,
michael@0 186 0xD98EEDC6, 0xCA2C75B1, 0xFECBDD28, 0xED69455F, 0x97048C1A, 0x84A6146D, 0xB041BCF4, 0xA3E32483
michael@0 187 };
michael@0 188
michael@0 189 /*
michael@0 190 * end of the CRC lookup table crc_tableil8_o40
michael@0 191 */
michael@0 192
michael@0 193
michael@0 194
michael@0 195 /*
michael@0 196 * The following CRC lookup table was generated automagically using the
michael@0 197 * following model parameters:
michael@0 198 *
michael@0 199 * Generator Polynomial = ................. 0x1EDC6F41
michael@0 200 * Generator Polynomial Length = .......... 32 bits
michael@0 201 * Reflected Bits = ....................... TRUE
michael@0 202 * Table Generation Offset = .............. 32 bits
michael@0 203 * Number of Slices = ..................... 8 slices
michael@0 204 * Slice Lengths = ........................ 8 8 8 8 8 8 8 8
michael@0 205 * Directory Name = ....................... .\
michael@0 206 * File Name = ............................ 8x256_tables.c
michael@0 207 */
michael@0 208
michael@0 209 static uint32_t sctp_crc_tableil8_o48[256] =
michael@0 210 {
michael@0 211 0x00000000, 0xA541927E, 0x4F6F520D, 0xEA2EC073, 0x9EDEA41A, 0x3B9F3664, 0xD1B1F617, 0x74F06469,
michael@0 212 0x38513EC5, 0x9D10ACBB, 0x773E6CC8, 0xD27FFEB6, 0xA68F9ADF, 0x03CE08A1, 0xE9E0C8D2, 0x4CA15AAC,
michael@0 213 0x70A27D8A, 0xD5E3EFF4, 0x3FCD2F87, 0x9A8CBDF9, 0xEE7CD990, 0x4B3D4BEE, 0xA1138B9D, 0x045219E3,
michael@0 214 0x48F3434F, 0xEDB2D131, 0x079C1142, 0xA2DD833C, 0xD62DE755, 0x736C752B, 0x9942B558, 0x3C032726,
michael@0 215 0xE144FB14, 0x4405696A, 0xAE2BA919, 0x0B6A3B67, 0x7F9A5F0E, 0xDADBCD70, 0x30F50D03, 0x95B49F7D,
michael@0 216 0xD915C5D1, 0x7C5457AF, 0x967A97DC, 0x333B05A2, 0x47CB61CB, 0xE28AF3B5, 0x08A433C6, 0xADE5A1B8,
michael@0 217 0x91E6869E, 0x34A714E0, 0xDE89D493, 0x7BC846ED, 0x0F382284, 0xAA79B0FA, 0x40577089, 0xE516E2F7,
michael@0 218 0xA9B7B85B, 0x0CF62A25, 0xE6D8EA56, 0x43997828, 0x37691C41, 0x92288E3F, 0x78064E4C, 0xDD47DC32,
michael@0 219 0xC76580D9, 0x622412A7, 0x880AD2D4, 0x2D4B40AA, 0x59BB24C3, 0xFCFAB6BD, 0x16D476CE, 0xB395E4B0,
michael@0 220 0xFF34BE1C, 0x5A752C62, 0xB05BEC11, 0x151A7E6F, 0x61EA1A06, 0xC4AB8878, 0x2E85480B, 0x8BC4DA75,
michael@0 221 0xB7C7FD53, 0x12866F2D, 0xF8A8AF5E, 0x5DE93D20, 0x29195949, 0x8C58CB37, 0x66760B44, 0xC337993A,
michael@0 222 0x8F96C396, 0x2AD751E8, 0xC0F9919B, 0x65B803E5, 0x1148678C, 0xB409F5F2, 0x5E273581, 0xFB66A7FF,
michael@0 223 0x26217BCD, 0x8360E9B3, 0x694E29C0, 0xCC0FBBBE, 0xB8FFDFD7, 0x1DBE4DA9, 0xF7908DDA, 0x52D11FA4,
michael@0 224 0x1E704508, 0xBB31D776, 0x511F1705, 0xF45E857B, 0x80AEE112, 0x25EF736C, 0xCFC1B31F, 0x6A802161,
michael@0 225 0x56830647, 0xF3C29439, 0x19EC544A, 0xBCADC634, 0xC85DA25D, 0x6D1C3023, 0x8732F050, 0x2273622E,
michael@0 226 0x6ED23882, 0xCB93AAFC, 0x21BD6A8F, 0x84FCF8F1, 0xF00C9C98, 0x554D0EE6, 0xBF63CE95, 0x1A225CEB,
michael@0 227 0x8B277743, 0x2E66E53D, 0xC448254E, 0x6109B730, 0x15F9D359, 0xB0B84127, 0x5A968154, 0xFFD7132A,
michael@0 228 0xB3764986, 0x1637DBF8, 0xFC191B8B, 0x595889F5, 0x2DA8ED9C, 0x88E97FE2, 0x62C7BF91, 0xC7862DEF,
michael@0 229 0xFB850AC9, 0x5EC498B7, 0xB4EA58C4, 0x11ABCABA, 0x655BAED3, 0xC01A3CAD, 0x2A34FCDE, 0x8F756EA0,
michael@0 230 0xC3D4340C, 0x6695A672, 0x8CBB6601, 0x29FAF47F, 0x5D0A9016, 0xF84B0268, 0x1265C21B, 0xB7245065,
michael@0 231 0x6A638C57, 0xCF221E29, 0x250CDE5A, 0x804D4C24, 0xF4BD284D, 0x51FCBA33, 0xBBD27A40, 0x1E93E83E,
michael@0 232 0x5232B292, 0xF77320EC, 0x1D5DE09F, 0xB81C72E1, 0xCCEC1688, 0x69AD84F6, 0x83834485, 0x26C2D6FB,
michael@0 233 0x1AC1F1DD, 0xBF8063A3, 0x55AEA3D0, 0xF0EF31AE, 0x841F55C7, 0x215EC7B9, 0xCB7007CA, 0x6E3195B4,
michael@0 234 0x2290CF18, 0x87D15D66, 0x6DFF9D15, 0xC8BE0F6B, 0xBC4E6B02, 0x190FF97C, 0xF321390F, 0x5660AB71,
michael@0 235 0x4C42F79A, 0xE90365E4, 0x032DA597, 0xA66C37E9, 0xD29C5380, 0x77DDC1FE, 0x9DF3018D, 0x38B293F3,
michael@0 236 0x7413C95F, 0xD1525B21, 0x3B7C9B52, 0x9E3D092C, 0xEACD6D45, 0x4F8CFF3B, 0xA5A23F48, 0x00E3AD36,
michael@0 237 0x3CE08A10, 0x99A1186E, 0x738FD81D, 0xD6CE4A63, 0xA23E2E0A, 0x077FBC74, 0xED517C07, 0x4810EE79,
michael@0 238 0x04B1B4D5, 0xA1F026AB, 0x4BDEE6D8, 0xEE9F74A6, 0x9A6F10CF, 0x3F2E82B1, 0xD50042C2, 0x7041D0BC,
michael@0 239 0xAD060C8E, 0x08479EF0, 0xE2695E83, 0x4728CCFD, 0x33D8A894, 0x96993AEA, 0x7CB7FA99, 0xD9F668E7,
michael@0 240 0x9557324B, 0x3016A035, 0xDA386046, 0x7F79F238, 0x0B899651, 0xAEC8042F, 0x44E6C45C, 0xE1A75622,
michael@0 241 0xDDA47104, 0x78E5E37A, 0x92CB2309, 0x378AB177, 0x437AD51E, 0xE63B4760, 0x0C158713, 0xA954156D,
michael@0 242 0xE5F54FC1, 0x40B4DDBF, 0xAA9A1DCC, 0x0FDB8FB2, 0x7B2BEBDB, 0xDE6A79A5, 0x3444B9D6, 0x91052BA8
michael@0 243 };
michael@0 244
michael@0 245 /*
michael@0 246 * end of the CRC lookup table crc_tableil8_o48
michael@0 247 */
michael@0 248
michael@0 249
michael@0 250
michael@0 251 /*
michael@0 252 * The following CRC lookup table was generated automagically using the
michael@0 253 * following model parameters:
michael@0 254 *
michael@0 255 * Generator Polynomial = ................. 0x1EDC6F41
michael@0 256 * Generator Polynomial Length = .......... 32 bits
michael@0 257 * Reflected Bits = ....................... TRUE
michael@0 258 * Table Generation Offset = .............. 32 bits
michael@0 259 * Number of Slices = ..................... 8 slices
michael@0 260 * Slice Lengths = ........................ 8 8 8 8 8 8 8 8
michael@0 261 * Directory Name = ....................... .\
michael@0 262 * File Name = ............................ 8x256_tables.c
michael@0 263 */
michael@0 264
michael@0 265 static uint32_t sctp_crc_tableil8_o56[256] =
michael@0 266 {
michael@0 267 0x00000000, 0xDD45AAB8, 0xBF672381, 0x62228939, 0x7B2231F3, 0xA6679B4B, 0xC4451272, 0x1900B8CA,
michael@0 268 0xF64463E6, 0x2B01C95E, 0x49234067, 0x9466EADF, 0x8D665215, 0x5023F8AD, 0x32017194, 0xEF44DB2C,
michael@0 269 0xE964B13D, 0x34211B85, 0x560392BC, 0x8B463804, 0x924680CE, 0x4F032A76, 0x2D21A34F, 0xF06409F7,
michael@0 270 0x1F20D2DB, 0xC2657863, 0xA047F15A, 0x7D025BE2, 0x6402E328, 0xB9474990, 0xDB65C0A9, 0x06206A11,
michael@0 271 0xD725148B, 0x0A60BE33, 0x6842370A, 0xB5079DB2, 0xAC072578, 0x71428FC0, 0x136006F9, 0xCE25AC41,
michael@0 272 0x2161776D, 0xFC24DDD5, 0x9E0654EC, 0x4343FE54, 0x5A43469E, 0x8706EC26, 0xE524651F, 0x3861CFA7,
michael@0 273 0x3E41A5B6, 0xE3040F0E, 0x81268637, 0x5C632C8F, 0x45639445, 0x98263EFD, 0xFA04B7C4, 0x27411D7C,
michael@0 274 0xC805C650, 0x15406CE8, 0x7762E5D1, 0xAA274F69, 0xB327F7A3, 0x6E625D1B, 0x0C40D422, 0xD1057E9A,
michael@0 275 0xABA65FE7, 0x76E3F55F, 0x14C17C66, 0xC984D6DE, 0xD0846E14, 0x0DC1C4AC, 0x6FE34D95, 0xB2A6E72D,
michael@0 276 0x5DE23C01, 0x80A796B9, 0xE2851F80, 0x3FC0B538, 0x26C00DF2, 0xFB85A74A, 0x99A72E73, 0x44E284CB,
michael@0 277 0x42C2EEDA, 0x9F874462, 0xFDA5CD5B, 0x20E067E3, 0x39E0DF29, 0xE4A57591, 0x8687FCA8, 0x5BC25610,
michael@0 278 0xB4868D3C, 0x69C32784, 0x0BE1AEBD, 0xD6A40405, 0xCFA4BCCF, 0x12E11677, 0x70C39F4E, 0xAD8635F6,
michael@0 279 0x7C834B6C, 0xA1C6E1D4, 0xC3E468ED, 0x1EA1C255, 0x07A17A9F, 0xDAE4D027, 0xB8C6591E, 0x6583F3A6,
michael@0 280 0x8AC7288A, 0x57828232, 0x35A00B0B, 0xE8E5A1B3, 0xF1E51979, 0x2CA0B3C1, 0x4E823AF8, 0x93C79040,
michael@0 281 0x95E7FA51, 0x48A250E9, 0x2A80D9D0, 0xF7C57368, 0xEEC5CBA2, 0x3380611A, 0x51A2E823, 0x8CE7429B,
michael@0 282 0x63A399B7, 0xBEE6330F, 0xDCC4BA36, 0x0181108E, 0x1881A844, 0xC5C402FC, 0xA7E68BC5, 0x7AA3217D,
michael@0 283 0x52A0C93F, 0x8FE56387, 0xEDC7EABE, 0x30824006, 0x2982F8CC, 0xF4C75274, 0x96E5DB4D, 0x4BA071F5,
michael@0 284 0xA4E4AAD9, 0x79A10061, 0x1B838958, 0xC6C623E0, 0xDFC69B2A, 0x02833192, 0x60A1B8AB, 0xBDE41213,
michael@0 285 0xBBC47802, 0x6681D2BA, 0x04A35B83, 0xD9E6F13B, 0xC0E649F1, 0x1DA3E349, 0x7F816A70, 0xA2C4C0C8,
michael@0 286 0x4D801BE4, 0x90C5B15C, 0xF2E73865, 0x2FA292DD, 0x36A22A17, 0xEBE780AF, 0x89C50996, 0x5480A32E,
michael@0 287 0x8585DDB4, 0x58C0770C, 0x3AE2FE35, 0xE7A7548D, 0xFEA7EC47, 0x23E246FF, 0x41C0CFC6, 0x9C85657E,
michael@0 288 0x73C1BE52, 0xAE8414EA, 0xCCA69DD3, 0x11E3376B, 0x08E38FA1, 0xD5A62519, 0xB784AC20, 0x6AC10698,
michael@0 289 0x6CE16C89, 0xB1A4C631, 0xD3864F08, 0x0EC3E5B0, 0x17C35D7A, 0xCA86F7C2, 0xA8A47EFB, 0x75E1D443,
michael@0 290 0x9AA50F6F, 0x47E0A5D7, 0x25C22CEE, 0xF8878656, 0xE1873E9C, 0x3CC29424, 0x5EE01D1D, 0x83A5B7A5,
michael@0 291 0xF90696D8, 0x24433C60, 0x4661B559, 0x9B241FE1, 0x8224A72B, 0x5F610D93, 0x3D4384AA, 0xE0062E12,
michael@0 292 0x0F42F53E, 0xD2075F86, 0xB025D6BF, 0x6D607C07, 0x7460C4CD, 0xA9256E75, 0xCB07E74C, 0x16424DF4,
michael@0 293 0x106227E5, 0xCD278D5D, 0xAF050464, 0x7240AEDC, 0x6B401616, 0xB605BCAE, 0xD4273597, 0x09629F2F,
michael@0 294 0xE6264403, 0x3B63EEBB, 0x59416782, 0x8404CD3A, 0x9D0475F0, 0x4041DF48, 0x22635671, 0xFF26FCC9,
michael@0 295 0x2E238253, 0xF36628EB, 0x9144A1D2, 0x4C010B6A, 0x5501B3A0, 0x88441918, 0xEA669021, 0x37233A99,
michael@0 296 0xD867E1B5, 0x05224B0D, 0x6700C234, 0xBA45688C, 0xA345D046, 0x7E007AFE, 0x1C22F3C7, 0xC167597F,
michael@0 297 0xC747336E, 0x1A0299D6, 0x782010EF, 0xA565BA57, 0xBC65029D, 0x6120A825, 0x0302211C, 0xDE478BA4,
michael@0 298 0x31035088, 0xEC46FA30, 0x8E647309, 0x5321D9B1, 0x4A21617B, 0x9764CBC3, 0xF54642FA, 0x2803E842
michael@0 299 };
michael@0 300
michael@0 301 /*
michael@0 302 * end of the CRC lookup table crc_tableil8_o56
michael@0 303 */
michael@0 304
michael@0 305
michael@0 306
michael@0 307 /*
michael@0 308 * The following CRC lookup table was generated automagically using the
michael@0 309 * following model parameters:
michael@0 310 *
michael@0 311 * Generator Polynomial = ................. 0x1EDC6F41
michael@0 312 * Generator Polynomial Length = .......... 32 bits
michael@0 313 * Reflected Bits = ....................... TRUE
michael@0 314 * Table Generation Offset = .............. 32 bits
michael@0 315 * Number of Slices = ..................... 8 slices
michael@0 316 * Slice Lengths = ........................ 8 8 8 8 8 8 8 8
michael@0 317 * Directory Name = ....................... .\
michael@0 318 * File Name = ............................ 8x256_tables.c
michael@0 319 */
michael@0 320
michael@0 321 static uint32_t sctp_crc_tableil8_o64[256] =
michael@0 322 {
michael@0 323 0x00000000, 0x38116FAC, 0x7022DF58, 0x4833B0F4, 0xE045BEB0, 0xD854D11C, 0x906761E8, 0xA8760E44,
michael@0 324 0xC5670B91, 0xFD76643D, 0xB545D4C9, 0x8D54BB65, 0x2522B521, 0x1D33DA8D, 0x55006A79, 0x6D1105D5,
michael@0 325 0x8F2261D3, 0xB7330E7F, 0xFF00BE8B, 0xC711D127, 0x6F67DF63, 0x5776B0CF, 0x1F45003B, 0x27546F97,
michael@0 326 0x4A456A42, 0x725405EE, 0x3A67B51A, 0x0276DAB6, 0xAA00D4F2, 0x9211BB5E, 0xDA220BAA, 0xE2336406,
michael@0 327 0x1BA8B557, 0x23B9DAFB, 0x6B8A6A0F, 0x539B05A3, 0xFBED0BE7, 0xC3FC644B, 0x8BCFD4BF, 0xB3DEBB13,
michael@0 328 0xDECFBEC6, 0xE6DED16A, 0xAEED619E, 0x96FC0E32, 0x3E8A0076, 0x069B6FDA, 0x4EA8DF2E, 0x76B9B082,
michael@0 329 0x948AD484, 0xAC9BBB28, 0xE4A80BDC, 0xDCB96470, 0x74CF6A34, 0x4CDE0598, 0x04EDB56C, 0x3CFCDAC0,
michael@0 330 0x51EDDF15, 0x69FCB0B9, 0x21CF004D, 0x19DE6FE1, 0xB1A861A5, 0x89B90E09, 0xC18ABEFD, 0xF99BD151,
michael@0 331 0x37516AAE, 0x0F400502, 0x4773B5F6, 0x7F62DA5A, 0xD714D41E, 0xEF05BBB2, 0xA7360B46, 0x9F2764EA,
michael@0 332 0xF236613F, 0xCA270E93, 0x8214BE67, 0xBA05D1CB, 0x1273DF8F, 0x2A62B023, 0x625100D7, 0x5A406F7B,
michael@0 333 0xB8730B7D, 0x806264D1, 0xC851D425, 0xF040BB89, 0x5836B5CD, 0x6027DA61, 0x28146A95, 0x10050539,
michael@0 334 0x7D1400EC, 0x45056F40, 0x0D36DFB4, 0x3527B018, 0x9D51BE5C, 0xA540D1F0, 0xED736104, 0xD5620EA8,
michael@0 335 0x2CF9DFF9, 0x14E8B055, 0x5CDB00A1, 0x64CA6F0D, 0xCCBC6149, 0xF4AD0EE5, 0xBC9EBE11, 0x848FD1BD,
michael@0 336 0xE99ED468, 0xD18FBBC4, 0x99BC0B30, 0xA1AD649C, 0x09DB6AD8, 0x31CA0574, 0x79F9B580, 0x41E8DA2C,
michael@0 337 0xA3DBBE2A, 0x9BCAD186, 0xD3F96172, 0xEBE80EDE, 0x439E009A, 0x7B8F6F36, 0x33BCDFC2, 0x0BADB06E,
michael@0 338 0x66BCB5BB, 0x5EADDA17, 0x169E6AE3, 0x2E8F054F, 0x86F90B0B, 0xBEE864A7, 0xF6DBD453, 0xCECABBFF,
michael@0 339 0x6EA2D55C, 0x56B3BAF0, 0x1E800A04, 0x269165A8, 0x8EE76BEC, 0xB6F60440, 0xFEC5B4B4, 0xC6D4DB18,
michael@0 340 0xABC5DECD, 0x93D4B161, 0xDBE70195, 0xE3F66E39, 0x4B80607D, 0x73910FD1, 0x3BA2BF25, 0x03B3D089,
michael@0 341 0xE180B48F, 0xD991DB23, 0x91A26BD7, 0xA9B3047B, 0x01C50A3F, 0x39D46593, 0x71E7D567, 0x49F6BACB,
michael@0 342 0x24E7BF1E, 0x1CF6D0B2, 0x54C56046, 0x6CD40FEA, 0xC4A201AE, 0xFCB36E02, 0xB480DEF6, 0x8C91B15A,
michael@0 343 0x750A600B, 0x4D1B0FA7, 0x0528BF53, 0x3D39D0FF, 0x954FDEBB, 0xAD5EB117, 0xE56D01E3, 0xDD7C6E4F,
michael@0 344 0xB06D6B9A, 0x887C0436, 0xC04FB4C2, 0xF85EDB6E, 0x5028D52A, 0x6839BA86, 0x200A0A72, 0x181B65DE,
michael@0 345 0xFA2801D8, 0xC2396E74, 0x8A0ADE80, 0xB21BB12C, 0x1A6DBF68, 0x227CD0C4, 0x6A4F6030, 0x525E0F9C,
michael@0 346 0x3F4F0A49, 0x075E65E5, 0x4F6DD511, 0x777CBABD, 0xDF0AB4F9, 0xE71BDB55, 0xAF286BA1, 0x9739040D,
michael@0 347 0x59F3BFF2, 0x61E2D05E, 0x29D160AA, 0x11C00F06, 0xB9B60142, 0x81A76EEE, 0xC994DE1A, 0xF185B1B6,
michael@0 348 0x9C94B463, 0xA485DBCF, 0xECB66B3B, 0xD4A70497, 0x7CD10AD3, 0x44C0657F, 0x0CF3D58B, 0x34E2BA27,
michael@0 349 0xD6D1DE21, 0xEEC0B18D, 0xA6F30179, 0x9EE26ED5, 0x36946091, 0x0E850F3D, 0x46B6BFC9, 0x7EA7D065,
michael@0 350 0x13B6D5B0, 0x2BA7BA1C, 0x63940AE8, 0x5B856544, 0xF3F36B00, 0xCBE204AC, 0x83D1B458, 0xBBC0DBF4,
michael@0 351 0x425B0AA5, 0x7A4A6509, 0x3279D5FD, 0x0A68BA51, 0xA21EB415, 0x9A0FDBB9, 0xD23C6B4D, 0xEA2D04E1,
michael@0 352 0x873C0134, 0xBF2D6E98, 0xF71EDE6C, 0xCF0FB1C0, 0x6779BF84, 0x5F68D028, 0x175B60DC, 0x2F4A0F70,
michael@0 353 0xCD796B76, 0xF56804DA, 0xBD5BB42E, 0x854ADB82, 0x2D3CD5C6, 0x152DBA6A, 0x5D1E0A9E, 0x650F6532,
michael@0 354 0x081E60E7, 0x300F0F4B, 0x783CBFBF, 0x402DD013, 0xE85BDE57, 0xD04AB1FB, 0x9879010F, 0xA0686EA3
michael@0 355 };
michael@0 356
michael@0 357 /*
michael@0 358 * end of the CRC lookup table crc_tableil8_o64
michael@0 359 */
michael@0 360
michael@0 361
michael@0 362
michael@0 363 /*
michael@0 364 * The following CRC lookup table was generated automagically using the
michael@0 365 * following model parameters:
michael@0 366 *
michael@0 367 * Generator Polynomial = ................. 0x1EDC6F41
michael@0 368 * Generator Polynomial Length = .......... 32 bits
michael@0 369 * Reflected Bits = ....................... TRUE
michael@0 370 * Table Generation Offset = .............. 32 bits
michael@0 371 * Number of Slices = ..................... 8 slices
michael@0 372 * Slice Lengths = ........................ 8 8 8 8 8 8 8 8
michael@0 373 * Directory Name = ....................... .\
michael@0 374 * File Name = ............................ 8x256_tables.c
michael@0 375 */
michael@0 376
michael@0 377 uint32_t sctp_crc_tableil8_o72[256] =
michael@0 378 {
michael@0 379 0x00000000, 0xEF306B19, 0xDB8CA0C3, 0x34BCCBDA, 0xB2F53777, 0x5DC55C6E, 0x697997B4, 0x8649FCAD,
michael@0 380 0x6006181F, 0x8F367306, 0xBB8AB8DC, 0x54BAD3C5, 0xD2F32F68, 0x3DC34471, 0x097F8FAB, 0xE64FE4B2,
michael@0 381 0xC00C303E, 0x2F3C5B27, 0x1B8090FD, 0xF4B0FBE4, 0x72F90749, 0x9DC96C50, 0xA975A78A, 0x4645CC93,
michael@0 382 0xA00A2821, 0x4F3A4338, 0x7B8688E2, 0x94B6E3FB, 0x12FF1F56, 0xFDCF744F, 0xC973BF95, 0x2643D48C,
michael@0 383 0x85F4168D, 0x6AC47D94, 0x5E78B64E, 0xB148DD57, 0x370121FA, 0xD8314AE3, 0xEC8D8139, 0x03BDEA20,
michael@0 384 0xE5F20E92, 0x0AC2658B, 0x3E7EAE51, 0xD14EC548, 0x570739E5, 0xB83752FC, 0x8C8B9926, 0x63BBF23F,
michael@0 385 0x45F826B3, 0xAAC84DAA, 0x9E748670, 0x7144ED69, 0xF70D11C4, 0x183D7ADD, 0x2C81B107, 0xC3B1DA1E,
michael@0 386 0x25FE3EAC, 0xCACE55B5, 0xFE729E6F, 0x1142F576, 0x970B09DB, 0x783B62C2, 0x4C87A918, 0xA3B7C201,
michael@0 387 0x0E045BEB, 0xE13430F2, 0xD588FB28, 0x3AB89031, 0xBCF16C9C, 0x53C10785, 0x677DCC5F, 0x884DA746,
michael@0 388 0x6E0243F4, 0x813228ED, 0xB58EE337, 0x5ABE882E, 0xDCF77483, 0x33C71F9A, 0x077BD440, 0xE84BBF59,
michael@0 389 0xCE086BD5, 0x213800CC, 0x1584CB16, 0xFAB4A00F, 0x7CFD5CA2, 0x93CD37BB, 0xA771FC61, 0x48419778,
michael@0 390 0xAE0E73CA, 0x413E18D3, 0x7582D309, 0x9AB2B810, 0x1CFB44BD, 0xF3CB2FA4, 0xC777E47E, 0x28478F67,
michael@0 391 0x8BF04D66, 0x64C0267F, 0x507CEDA5, 0xBF4C86BC, 0x39057A11, 0xD6351108, 0xE289DAD2, 0x0DB9B1CB,
michael@0 392 0xEBF65579, 0x04C63E60, 0x307AF5BA, 0xDF4A9EA3, 0x5903620E, 0xB6330917, 0x828FC2CD, 0x6DBFA9D4,
michael@0 393 0x4BFC7D58, 0xA4CC1641, 0x9070DD9B, 0x7F40B682, 0xF9094A2F, 0x16392136, 0x2285EAEC, 0xCDB581F5,
michael@0 394 0x2BFA6547, 0xC4CA0E5E, 0xF076C584, 0x1F46AE9D, 0x990F5230, 0x763F3929, 0x4283F2F3, 0xADB399EA,
michael@0 395 0x1C08B7D6, 0xF338DCCF, 0xC7841715, 0x28B47C0C, 0xAEFD80A1, 0x41CDEBB8, 0x75712062, 0x9A414B7B,
michael@0 396 0x7C0EAFC9, 0x933EC4D0, 0xA7820F0A, 0x48B26413, 0xCEFB98BE, 0x21CBF3A7, 0x1577387D, 0xFA475364,
michael@0 397 0xDC0487E8, 0x3334ECF1, 0x0788272B, 0xE8B84C32, 0x6EF1B09F, 0x81C1DB86, 0xB57D105C, 0x5A4D7B45,
michael@0 398 0xBC029FF7, 0x5332F4EE, 0x678E3F34, 0x88BE542D, 0x0EF7A880, 0xE1C7C399, 0xD57B0843, 0x3A4B635A,
michael@0 399 0x99FCA15B, 0x76CCCA42, 0x42700198, 0xAD406A81, 0x2B09962C, 0xC439FD35, 0xF08536EF, 0x1FB55DF6,
michael@0 400 0xF9FAB944, 0x16CAD25D, 0x22761987, 0xCD46729E, 0x4B0F8E33, 0xA43FE52A, 0x90832EF0, 0x7FB345E9,
michael@0 401 0x59F09165, 0xB6C0FA7C, 0x827C31A6, 0x6D4C5ABF, 0xEB05A612, 0x0435CD0B, 0x308906D1, 0xDFB96DC8,
michael@0 402 0x39F6897A, 0xD6C6E263, 0xE27A29B9, 0x0D4A42A0, 0x8B03BE0D, 0x6433D514, 0x508F1ECE, 0xBFBF75D7,
michael@0 403 0x120CEC3D, 0xFD3C8724, 0xC9804CFE, 0x26B027E7, 0xA0F9DB4A, 0x4FC9B053, 0x7B757B89, 0x94451090,
michael@0 404 0x720AF422, 0x9D3A9F3B, 0xA98654E1, 0x46B63FF8, 0xC0FFC355, 0x2FCFA84C, 0x1B736396, 0xF443088F,
michael@0 405 0xD200DC03, 0x3D30B71A, 0x098C7CC0, 0xE6BC17D9, 0x60F5EB74, 0x8FC5806D, 0xBB794BB7, 0x544920AE,
michael@0 406 0xB206C41C, 0x5D36AF05, 0x698A64DF, 0x86BA0FC6, 0x00F3F36B, 0xEFC39872, 0xDB7F53A8, 0x344F38B1,
michael@0 407 0x97F8FAB0, 0x78C891A9, 0x4C745A73, 0xA344316A, 0x250DCDC7, 0xCA3DA6DE, 0xFE816D04, 0x11B1061D,
michael@0 408 0xF7FEE2AF, 0x18CE89B6, 0x2C72426C, 0xC3422975, 0x450BD5D8, 0xAA3BBEC1, 0x9E87751B, 0x71B71E02,
michael@0 409 0x57F4CA8E, 0xB8C4A197, 0x8C786A4D, 0x63480154, 0xE501FDF9, 0x0A3196E0, 0x3E8D5D3A, 0xD1BD3623,
michael@0 410 0x37F2D291, 0xD8C2B988, 0xEC7E7252, 0x034E194B, 0x8507E5E6, 0x6A378EFF, 0x5E8B4525, 0xB1BB2E3C
michael@0 411 };
michael@0 412
michael@0 413 /*
michael@0 414 * end of the CRC lookup table crc_tableil8_o72
michael@0 415 */
michael@0 416
michael@0 417
michael@0 418
michael@0 419 /*
michael@0 420 * The following CRC lookup table was generated automagically using the
michael@0 421 * following model parameters:
michael@0 422 *
michael@0 423 * Generator Polynomial = ................. 0x1EDC6F41
michael@0 424 * Generator Polynomial Length = .......... 32 bits
michael@0 425 * Reflected Bits = ....................... TRUE
michael@0 426 * Table Generation Offset = .............. 32 bits
michael@0 427 * Number of Slices = ..................... 8 slices
michael@0 428 * Slice Lengths = ........................ 8 8 8 8 8 8 8 8
michael@0 429 * Directory Name = ....................... .\
michael@0 430 * File Name = ............................ 8x256_tables.c
michael@0 431 */
michael@0 432
michael@0 433 static uint32_t sctp_crc_tableil8_o80[256] =
michael@0 434 {
michael@0 435 0x00000000, 0x68032CC8, 0xD0065990, 0xB8057558, 0xA5E0C5D1, 0xCDE3E919, 0x75E69C41, 0x1DE5B089,
michael@0 436 0x4E2DFD53, 0x262ED19B, 0x9E2BA4C3, 0xF628880B, 0xEBCD3882, 0x83CE144A, 0x3BCB6112, 0x53C84DDA,
michael@0 437 0x9C5BFAA6, 0xF458D66E, 0x4C5DA336, 0x245E8FFE, 0x39BB3F77, 0x51B813BF, 0xE9BD66E7, 0x81BE4A2F,
michael@0 438 0xD27607F5, 0xBA752B3D, 0x02705E65, 0x6A7372AD, 0x7796C224, 0x1F95EEEC, 0xA7909BB4, 0xCF93B77C,
michael@0 439 0x3D5B83BD, 0x5558AF75, 0xED5DDA2D, 0x855EF6E5, 0x98BB466C, 0xF0B86AA4, 0x48BD1FFC, 0x20BE3334,
michael@0 440 0x73767EEE, 0x1B755226, 0xA370277E, 0xCB730BB6, 0xD696BB3F, 0xBE9597F7, 0x0690E2AF, 0x6E93CE67,
michael@0 441 0xA100791B, 0xC90355D3, 0x7106208B, 0x19050C43, 0x04E0BCCA, 0x6CE39002, 0xD4E6E55A, 0xBCE5C992,
michael@0 442 0xEF2D8448, 0x872EA880, 0x3F2BDDD8, 0x5728F110, 0x4ACD4199, 0x22CE6D51, 0x9ACB1809, 0xF2C834C1,
michael@0 443 0x7AB7077A, 0x12B42BB2, 0xAAB15EEA, 0xC2B27222, 0xDF57C2AB, 0xB754EE63, 0x0F519B3B, 0x6752B7F3,
michael@0 444 0x349AFA29, 0x5C99D6E1, 0xE49CA3B9, 0x8C9F8F71, 0x917A3FF8, 0xF9791330, 0x417C6668, 0x297F4AA0,
michael@0 445 0xE6ECFDDC, 0x8EEFD114, 0x36EAA44C, 0x5EE98884, 0x430C380D, 0x2B0F14C5, 0x930A619D, 0xFB094D55,
michael@0 446 0xA8C1008F, 0xC0C22C47, 0x78C7591F, 0x10C475D7, 0x0D21C55E, 0x6522E996, 0xDD279CCE, 0xB524B006,
michael@0 447 0x47EC84C7, 0x2FEFA80F, 0x97EADD57, 0xFFE9F19F, 0xE20C4116, 0x8A0F6DDE, 0x320A1886, 0x5A09344E,
michael@0 448 0x09C17994, 0x61C2555C, 0xD9C72004, 0xB1C40CCC, 0xAC21BC45, 0xC422908D, 0x7C27E5D5, 0x1424C91D,
michael@0 449 0xDBB77E61, 0xB3B452A9, 0x0BB127F1, 0x63B20B39, 0x7E57BBB0, 0x16549778, 0xAE51E220, 0xC652CEE8,
michael@0 450 0x959A8332, 0xFD99AFFA, 0x459CDAA2, 0x2D9FF66A, 0x307A46E3, 0x58796A2B, 0xE07C1F73, 0x887F33BB,
michael@0 451 0xF56E0EF4, 0x9D6D223C, 0x25685764, 0x4D6B7BAC, 0x508ECB25, 0x388DE7ED, 0x808892B5, 0xE88BBE7D,
michael@0 452 0xBB43F3A7, 0xD340DF6F, 0x6B45AA37, 0x034686FF, 0x1EA33676, 0x76A01ABE, 0xCEA56FE6, 0xA6A6432E,
michael@0 453 0x6935F452, 0x0136D89A, 0xB933ADC2, 0xD130810A, 0xCCD53183, 0xA4D61D4B, 0x1CD36813, 0x74D044DB,
michael@0 454 0x27180901, 0x4F1B25C9, 0xF71E5091, 0x9F1D7C59, 0x82F8CCD0, 0xEAFBE018, 0x52FE9540, 0x3AFDB988,
michael@0 455 0xC8358D49, 0xA036A181, 0x1833D4D9, 0x7030F811, 0x6DD54898, 0x05D66450, 0xBDD31108, 0xD5D03DC0,
michael@0 456 0x8618701A, 0xEE1B5CD2, 0x561E298A, 0x3E1D0542, 0x23F8B5CB, 0x4BFB9903, 0xF3FEEC5B, 0x9BFDC093,
michael@0 457 0x546E77EF, 0x3C6D5B27, 0x84682E7F, 0xEC6B02B7, 0xF18EB23E, 0x998D9EF6, 0x2188EBAE, 0x498BC766,
michael@0 458 0x1A438ABC, 0x7240A674, 0xCA45D32C, 0xA246FFE4, 0xBFA34F6D, 0xD7A063A5, 0x6FA516FD, 0x07A63A35,
michael@0 459 0x8FD9098E, 0xE7DA2546, 0x5FDF501E, 0x37DC7CD6, 0x2A39CC5F, 0x423AE097, 0xFA3F95CF, 0x923CB907,
michael@0 460 0xC1F4F4DD, 0xA9F7D815, 0x11F2AD4D, 0x79F18185, 0x6414310C, 0x0C171DC4, 0xB412689C, 0xDC114454,
michael@0 461 0x1382F328, 0x7B81DFE0, 0xC384AAB8, 0xAB878670, 0xB66236F9, 0xDE611A31, 0x66646F69, 0x0E6743A1,
michael@0 462 0x5DAF0E7B, 0x35AC22B3, 0x8DA957EB, 0xE5AA7B23, 0xF84FCBAA, 0x904CE762, 0x2849923A, 0x404ABEF2,
michael@0 463 0xB2828A33, 0xDA81A6FB, 0x6284D3A3, 0x0A87FF6B, 0x17624FE2, 0x7F61632A, 0xC7641672, 0xAF673ABA,
michael@0 464 0xFCAF7760, 0x94AC5BA8, 0x2CA92EF0, 0x44AA0238, 0x594FB2B1, 0x314C9E79, 0x8949EB21, 0xE14AC7E9,
michael@0 465 0x2ED97095, 0x46DA5C5D, 0xFEDF2905, 0x96DC05CD, 0x8B39B544, 0xE33A998C, 0x5B3FECD4, 0x333CC01C,
michael@0 466 0x60F48DC6, 0x08F7A10E, 0xB0F2D456, 0xD8F1F89E, 0xC5144817, 0xAD1764DF, 0x15121187, 0x7D113D4F
michael@0 467 };
michael@0 468
michael@0 469 /*
michael@0 470 * end of the CRC lookup table crc_tableil8_o80
michael@0 471 */
michael@0 472
michael@0 473
michael@0 474
michael@0 475 /*
michael@0 476 * The following CRC lookup table was generated automagically using the
michael@0 477 * following model parameters:
michael@0 478 *
michael@0 479 * Generator Polynomial = ................. 0x1EDC6F41
michael@0 480 * Generator Polynomial Length = .......... 32 bits
michael@0 481 * Reflected Bits = ....................... TRUE
michael@0 482 * Table Generation Offset = .............. 32 bits
michael@0 483 * Number of Slices = ..................... 8 slices
michael@0 484 * Slice Lengths = ........................ 8 8 8 8 8 8 8 8
michael@0 485 * Directory Name = ....................... .\
michael@0 486 * File Name = ............................ 8x256_tables.c
michael@0 487 */
michael@0 488
michael@0 489 static uint32_t sctp_crc_tableil8_o88[256] =
michael@0 490 {
michael@0 491 0x00000000, 0x493C7D27, 0x9278FA4E, 0xDB448769, 0x211D826D, 0x6821FF4A, 0xB3657823, 0xFA590504,
michael@0 492 0x423B04DA, 0x0B0779FD, 0xD043FE94, 0x997F83B3, 0x632686B7, 0x2A1AFB90, 0xF15E7CF9, 0xB86201DE,
michael@0 493 0x847609B4, 0xCD4A7493, 0x160EF3FA, 0x5F328EDD, 0xA56B8BD9, 0xEC57F6FE, 0x37137197, 0x7E2F0CB0,
michael@0 494 0xC64D0D6E, 0x8F717049, 0x5435F720, 0x1D098A07, 0xE7508F03, 0xAE6CF224, 0x7528754D, 0x3C14086A,
michael@0 495 0x0D006599, 0x443C18BE, 0x9F789FD7, 0xD644E2F0, 0x2C1DE7F4, 0x65219AD3, 0xBE651DBA, 0xF759609D,
michael@0 496 0x4F3B6143, 0x06071C64, 0xDD439B0D, 0x947FE62A, 0x6E26E32E, 0x271A9E09, 0xFC5E1960, 0xB5626447,
michael@0 497 0x89766C2D, 0xC04A110A, 0x1B0E9663, 0x5232EB44, 0xA86BEE40, 0xE1579367, 0x3A13140E, 0x732F6929,
michael@0 498 0xCB4D68F7, 0x827115D0, 0x593592B9, 0x1009EF9E, 0xEA50EA9A, 0xA36C97BD, 0x782810D4, 0x31146DF3,
michael@0 499 0x1A00CB32, 0x533CB615, 0x8878317C, 0xC1444C5B, 0x3B1D495F, 0x72213478, 0xA965B311, 0xE059CE36,
michael@0 500 0x583BCFE8, 0x1107B2CF, 0xCA4335A6, 0x837F4881, 0x79264D85, 0x301A30A2, 0xEB5EB7CB, 0xA262CAEC,
michael@0 501 0x9E76C286, 0xD74ABFA1, 0x0C0E38C8, 0x453245EF, 0xBF6B40EB, 0xF6573DCC, 0x2D13BAA5, 0x642FC782,
michael@0 502 0xDC4DC65C, 0x9571BB7B, 0x4E353C12, 0x07094135, 0xFD504431, 0xB46C3916, 0x6F28BE7F, 0x2614C358,
michael@0 503 0x1700AEAB, 0x5E3CD38C, 0x857854E5, 0xCC4429C2, 0x361D2CC6, 0x7F2151E1, 0xA465D688, 0xED59ABAF,
michael@0 504 0x553BAA71, 0x1C07D756, 0xC743503F, 0x8E7F2D18, 0x7426281C, 0x3D1A553B, 0xE65ED252, 0xAF62AF75,
michael@0 505 0x9376A71F, 0xDA4ADA38, 0x010E5D51, 0x48322076, 0xB26B2572, 0xFB575855, 0x2013DF3C, 0x692FA21B,
michael@0 506 0xD14DA3C5, 0x9871DEE2, 0x4335598B, 0x0A0924AC, 0xF05021A8, 0xB96C5C8F, 0x6228DBE6, 0x2B14A6C1,
michael@0 507 0x34019664, 0x7D3DEB43, 0xA6796C2A, 0xEF45110D, 0x151C1409, 0x5C20692E, 0x8764EE47, 0xCE589360,
michael@0 508 0x763A92BE, 0x3F06EF99, 0xE44268F0, 0xAD7E15D7, 0x572710D3, 0x1E1B6DF4, 0xC55FEA9D, 0x8C6397BA,
michael@0 509 0xB0779FD0, 0xF94BE2F7, 0x220F659E, 0x6B3318B9, 0x916A1DBD, 0xD856609A, 0x0312E7F3, 0x4A2E9AD4,
michael@0 510 0xF24C9B0A, 0xBB70E62D, 0x60346144, 0x29081C63, 0xD3511967, 0x9A6D6440, 0x4129E329, 0x08159E0E,
michael@0 511 0x3901F3FD, 0x703D8EDA, 0xAB7909B3, 0xE2457494, 0x181C7190, 0x51200CB7, 0x8A648BDE, 0xC358F6F9,
michael@0 512 0x7B3AF727, 0x32068A00, 0xE9420D69, 0xA07E704E, 0x5A27754A, 0x131B086D, 0xC85F8F04, 0x8163F223,
michael@0 513 0xBD77FA49, 0xF44B876E, 0x2F0F0007, 0x66337D20, 0x9C6A7824, 0xD5560503, 0x0E12826A, 0x472EFF4D,
michael@0 514 0xFF4CFE93, 0xB67083B4, 0x6D3404DD, 0x240879FA, 0xDE517CFE, 0x976D01D9, 0x4C2986B0, 0x0515FB97,
michael@0 515 0x2E015D56, 0x673D2071, 0xBC79A718, 0xF545DA3F, 0x0F1CDF3B, 0x4620A21C, 0x9D642575, 0xD4585852,
michael@0 516 0x6C3A598C, 0x250624AB, 0xFE42A3C2, 0xB77EDEE5, 0x4D27DBE1, 0x041BA6C6, 0xDF5F21AF, 0x96635C88,
michael@0 517 0xAA7754E2, 0xE34B29C5, 0x380FAEAC, 0x7133D38B, 0x8B6AD68F, 0xC256ABA8, 0x19122CC1, 0x502E51E6,
michael@0 518 0xE84C5038, 0xA1702D1F, 0x7A34AA76, 0x3308D751, 0xC951D255, 0x806DAF72, 0x5B29281B, 0x1215553C,
michael@0 519 0x230138CF, 0x6A3D45E8, 0xB179C281, 0xF845BFA6, 0x021CBAA2, 0x4B20C785, 0x906440EC, 0xD9583DCB,
michael@0 520 0x613A3C15, 0x28064132, 0xF342C65B, 0xBA7EBB7C, 0x4027BE78, 0x091BC35F, 0xD25F4436, 0x9B633911,
michael@0 521 0xA777317B, 0xEE4B4C5C, 0x350FCB35, 0x7C33B612, 0x866AB316, 0xCF56CE31, 0x14124958, 0x5D2E347F,
michael@0 522 0xE54C35A1, 0xAC704886, 0x7734CFEF, 0x3E08B2C8, 0xC451B7CC, 0x8D6DCAEB, 0x56294D82, 0x1F1530A5
michael@0 523 };
michael@0 524
michael@0 525 /*
michael@0 526 * end of the CRC lookup table crc_tableil8_o88
michael@0 527 */
michael@0 528
michael@0 529
michael@0 530 static uint32_t
michael@0 531 sctp_crc32c_sb8_64_bit(uint32_t crc,
michael@0 532 const unsigned char *p_buf,
michael@0 533 uint32_t length,
michael@0 534 uint32_t init_bytes)
michael@0 535 {
michael@0 536 uint32_t li;
michael@0 537 uint32_t term1, term2;
michael@0 538 uint32_t running_length;
michael@0 539 uint32_t end_bytes;
michael@0 540
michael@0 541 running_length = ((length - init_bytes) / 8) * 8;
michael@0 542 end_bytes = length - init_bytes - running_length;
michael@0 543
michael@0 544 for (li = 0; li < init_bytes; li++)
michael@0 545 crc = sctp_crc_tableil8_o32[(crc ^ *p_buf++) & 0x000000FF] ^
michael@0 546 (crc >> 8);
michael@0 547 for (li = 0; li < running_length / 8; li++) {
michael@0 548 #if BYTE_ORDER == BIG_ENDIAN
michael@0 549 crc ^= *p_buf++;
michael@0 550 crc ^= (*p_buf++) << 8;
michael@0 551 crc ^= (*p_buf++) << 16;
michael@0 552 crc ^= (*p_buf++) << 24;
michael@0 553 #else
michael@0 554 crc ^= *(const uint32_t *) p_buf;
michael@0 555 p_buf += 4;
michael@0 556 #endif
michael@0 557 term1 = sctp_crc_tableil8_o88[crc & 0x000000FF] ^
michael@0 558 sctp_crc_tableil8_o80[(crc >> 8) & 0x000000FF];
michael@0 559 term2 = crc >> 16;
michael@0 560 crc = term1 ^
michael@0 561 sctp_crc_tableil8_o72[term2 & 0x000000FF] ^
michael@0 562 sctp_crc_tableil8_o64[(term2 >> 8) & 0x000000FF];
michael@0 563
michael@0 564 #if BYTE_ORDER == BIG_ENDIAN
michael@0 565 crc ^= sctp_crc_tableil8_o56[*p_buf++];
michael@0 566 crc ^= sctp_crc_tableil8_o48[*p_buf++];
michael@0 567 crc ^= sctp_crc_tableil8_o40[*p_buf++];
michael@0 568 crc ^= sctp_crc_tableil8_o32[*p_buf++];
michael@0 569 #else
michael@0 570 term1 = sctp_crc_tableil8_o56[(*(const uint32_t *) p_buf) & 0x000000FF] ^
michael@0 571 sctp_crc_tableil8_o48[((*(const uint32_t *) p_buf) >> 8) & 0x000000FF];
michael@0 572
michael@0 573 term2 = (*(const uint32_t *) p_buf) >> 16;
michael@0 574 crc = crc ^
michael@0 575 term1 ^
michael@0 576 sctp_crc_tableil8_o40[term2 & 0x000000FF] ^
michael@0 577 sctp_crc_tableil8_o32[(term2 >> 8) & 0x000000FF];
michael@0 578 p_buf += 4;
michael@0 579 #endif
michael@0 580 }
michael@0 581 for (li = 0; li < end_bytes; li++)
michael@0 582 crc = sctp_crc_tableil8_o32[(crc ^ *p_buf++) & 0x000000FF] ^
michael@0 583 (crc >> 8);
michael@0 584 return (crc);
michael@0 585 }
michael@0 586
michael@0 587
michael@0 588 /**
michael@0 589 *
michael@0 590 * Routine Description:
michael@0 591 *
michael@0 592 * warms the tables
michael@0 593 *
michael@0 594 * Arguments:
michael@0 595 *
michael@0 596 * none
michael@0 597 *
michael@0 598 * Return value:
michael@0 599 *
michael@0 600 * none
michael@0 601 */
michael@0 602 static uint32_t
michael@0 603 multitable_crc32c(uint32_t crc32c,
michael@0 604 const unsigned char *buffer,
michael@0 605 unsigned int length)
michael@0 606 {
michael@0 607 uint32_t to_even_word;
michael@0 608
michael@0 609 if (length == 0) {
michael@0 610 return (crc32c);
michael@0 611 }
michael@0 612 to_even_word = (4 - (((uintptr_t) buffer) & 0x3));
michael@0 613 return (sctp_crc32c_sb8_64_bit(crc32c, buffer, length, to_even_word));
michael@0 614 }
michael@0 615
michael@0 616 static uint32_t sctp_crc_c[256] = {
michael@0 617 0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4,
michael@0 618 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
michael@0 619 0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B,
michael@0 620 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
michael@0 621 0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B,
michael@0 622 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
michael@0 623 0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54,
michael@0 624 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
michael@0 625 0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A,
michael@0 626 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
michael@0 627 0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5,
michael@0 628 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
michael@0 629 0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45,
michael@0 630 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
michael@0 631 0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A,
michael@0 632 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
michael@0 633 0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48,
michael@0 634 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
michael@0 635 0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687,
michael@0 636 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
michael@0 637 0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927,
michael@0 638 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
michael@0 639 0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8,
michael@0 640 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
michael@0 641 0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096,
michael@0 642 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
michael@0 643 0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859,
michael@0 644 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
michael@0 645 0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9,
michael@0 646 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
michael@0 647 0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36,
michael@0 648 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
michael@0 649 0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C,
michael@0 650 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
michael@0 651 0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043,
michael@0 652 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
michael@0 653 0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3,
michael@0 654 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
michael@0 655 0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C,
michael@0 656 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
michael@0 657 0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652,
michael@0 658 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
michael@0 659 0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D,
michael@0 660 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
michael@0 661 0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D,
michael@0 662 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
michael@0 663 0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2,
michael@0 664 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
michael@0 665 0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530,
michael@0 666 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
michael@0 667 0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF,
michael@0 668 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
michael@0 669 0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F,
michael@0 670 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
michael@0 671 0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90,
michael@0 672 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
michael@0 673 0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE,
michael@0 674 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
michael@0 675 0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321,
michael@0 676 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
michael@0 677 0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81,
michael@0 678 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
michael@0 679 0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E,
michael@0 680 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351,
michael@0 681 };
michael@0 682
michael@0 683
michael@0 684 #define SCTP_CRC32C(c,d) (c=(c>>8)^sctp_crc_c[(c^(d))&0xFF])
michael@0 685
michael@0 686 static uint32_t
michael@0 687 singletable_crc32c(uint32_t crc32c,
michael@0 688 const unsigned char *buffer,
michael@0 689 unsigned int length)
michael@0 690 {
michael@0 691 unsigned int i;
michael@0 692
michael@0 693 for (i = 0; i < length; i++) {
michael@0 694 SCTP_CRC32C(crc32c, buffer[i]);
michael@0 695 }
michael@0 696 return (crc32c);
michael@0 697 }
michael@0 698
michael@0 699
michael@0 700 static uint32_t
michael@0 701 calculate_crc32c(uint32_t crc32c,
michael@0 702 const unsigned char *buffer,
michael@0 703 unsigned int length)
michael@0 704 {
michael@0 705 if (length < 4) {
michael@0 706 return (singletable_crc32c(crc32c, buffer, length));
michael@0 707 } else {
michael@0 708 return (multitable_crc32c(crc32c, buffer, length));
michael@0 709 }
michael@0 710 }
michael@0 711 #endif /* FreeBSD < 80000 || other OS */
michael@0 712
michael@0 713 static uint32_t
michael@0 714 sctp_finalize_crc32c(uint32_t crc32c)
michael@0 715 {
michael@0 716 uint32_t result;
michael@0 717
michael@0 718 #if BYTE_ORDER == BIG_ENDIAN
michael@0 719 uint8_t byte0, byte1, byte2, byte3;
michael@0 720
michael@0 721 #endif
michael@0 722 /* Complement the result */
michael@0 723 result = ~crc32c;
michael@0 724 #if BYTE_ORDER == BIG_ENDIAN
michael@0 725 /*
michael@0 726 * For BIG-ENDIAN.. aka Motorola byte order the result is in
michael@0 727 * little-endian form. So we must manually swap the bytes. Then we
michael@0 728 * can call htonl() which does nothing...
michael@0 729 */
michael@0 730 byte0 = result & 0x000000ff;
michael@0 731 byte1 = (result >> 8) & 0x000000ff;
michael@0 732 byte2 = (result >> 16) & 0x000000ff;
michael@0 733 byte3 = (result >> 24) & 0x000000ff;
michael@0 734 crc32c = ((byte0 << 24) | (byte1 << 16) | (byte2 << 8) | byte3);
michael@0 735 #else
michael@0 736 /*
michael@0 737 * For INTEL platforms the result comes out in network order. No
michael@0 738 * htonl is required or the swap above. So we optimize out both the
michael@0 739 * htonl and the manual swap above.
michael@0 740 */
michael@0 741 crc32c = result;
michael@0 742 #endif
michael@0 743 return (crc32c);
michael@0 744 }
michael@0 745
michael@0 746 uint32_t
michael@0 747 sctp_calculate_cksum(struct mbuf *m, uint32_t offset)
michael@0 748 {
michael@0 749 /*
michael@0 750 * given a mbuf chain with a packetheader offset by 'offset'
michael@0 751 * pointing at a sctphdr (with csum set to 0) go through the chain
michael@0 752 * of SCTP_BUF_NEXT()'s and calculate the SCTP checksum. This also
michael@0 753 * has a side bonus as it will calculate the total length of the
michael@0 754 * mbuf chain. Note: if offset is greater than the total mbuf
michael@0 755 * length, checksum=1, pktlen=0 is returned (ie. no real error code)
michael@0 756 */
michael@0 757 uint32_t base = 0xffffffff;
michael@0 758 struct mbuf *at;
michael@0 759
michael@0 760 at = m;
michael@0 761 /* find the correct mbuf and offset into mbuf */
michael@0 762 while ((at != NULL) && (offset > (uint32_t) SCTP_BUF_LEN(at))) {
michael@0 763 offset -= SCTP_BUF_LEN(at); /* update remaining offset
michael@0 764 * left */
michael@0 765 at = SCTP_BUF_NEXT(at);
michael@0 766 }
michael@0 767 while (at != NULL) {
michael@0 768 if ((SCTP_BUF_LEN(at) - offset) > 0) {
michael@0 769 base = calculate_crc32c(base,
michael@0 770 (unsigned char *)(SCTP_BUF_AT(at, offset)),
michael@0 771 (unsigned int)(SCTP_BUF_LEN(at) - offset));
michael@0 772 }
michael@0 773 if (offset) {
michael@0 774 /* we only offset once into the first mbuf */
michael@0 775 if (offset < (uint32_t) SCTP_BUF_LEN(at))
michael@0 776 offset = 0;
michael@0 777 else
michael@0 778 offset -= SCTP_BUF_LEN(at);
michael@0 779 }
michael@0 780 at = SCTP_BUF_NEXT(at);
michael@0 781 }
michael@0 782 base = sctp_finalize_crc32c(base);
michael@0 783 return (base);
michael@0 784 }
michael@0 785 #endif /* !defined(SCTP_WITH_NO_CSUM) */
michael@0 786
michael@0 787
michael@0 788 #if defined(__FreeBSD__)
michael@0 789 void
michael@0 790 sctp_delayed_cksum(struct mbuf *m, uint32_t offset)
michael@0 791 {
michael@0 792 #if defined(SCTP_WITH_NO_CSUM)
michael@0 793 #ifdef INVARIANTS
michael@0 794 panic("sctp_delayed_cksum() called when using no SCTP CRC.");
michael@0 795 #endif
michael@0 796 #else
michael@0 797 uint32_t checksum;
michael@0 798
michael@0 799 checksum = sctp_calculate_cksum(m, offset);
michael@0 800 SCTP_STAT_DECR(sctps_sendhwcrc);
michael@0 801 SCTP_STAT_INCR(sctps_sendswcrc);
michael@0 802 offset += offsetof(struct sctphdr, checksum);
michael@0 803
michael@0 804 if (offset + sizeof(uint32_t) > (uint32_t) (m->m_len)) {
michael@0 805 SCTP_PRINTF("sctp_delayed_cksum(): m->len: %d, off: %d.\n",
michael@0 806 (uint32_t) m->m_len, offset);
michael@0 807 /*
michael@0 808 * XXX this shouldn't happen, but if it does, the correct
michael@0 809 * behavior may be to insert the checksum in the appropriate
michael@0 810 * next mbuf in the chain.
michael@0 811 */
michael@0 812 return;
michael@0 813 }
michael@0 814 *(uint32_t *) (m->m_data + offset) = checksum;
michael@0 815 #endif
michael@0 816 }
michael@0 817 #endif
michael@0 818

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