mirror of
https://github.com/amadvance/snapraid.git
synced 2026-10-26 10:51:54 -04:00
9ce976232c
The same addressing rules are applied to the parity disks because they are used as data disks during recovery operations.
874 lines
25 KiB
C
874 lines
25 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
|
|
// Copyright (C) 2011 Andrea Mazzoleni
|
|
|
|
#include "portable.h"
|
|
|
|
#include "support.h"
|
|
#include "util.h"
|
|
#include "raid/cpu.h"
|
|
#include "raid/memory.h"
|
|
|
|
/****************************************************************************/
|
|
/* memory */
|
|
|
|
void* malloc_nofail_align(size_t size, void** freeptr)
|
|
{
|
|
void* ptr;
|
|
|
|
ptr = raid_malloc(size, freeptr);
|
|
|
|
if (!ptr) {
|
|
/* LCOV_EXCL_START */
|
|
malloc_fail(size);
|
|
exit(EXIT_FAILURE);
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void* malloc_nofail_direct(size_t size, void** freeptr)
|
|
{
|
|
void* ptr;
|
|
|
|
ptr = raid_malloc_align(size, direct_size(), freeptr);
|
|
|
|
if (!ptr) {
|
|
/* LCOV_EXCL_START */
|
|
malloc_fail(size);
|
|
exit(EXIT_FAILURE);
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void** malloc_nofail_vector_align(int n, size_t size, void** freeptr)
|
|
{
|
|
void* ptr;
|
|
|
|
ptr = raid_malloc_vector(n, size, freeptr);
|
|
|
|
if (!ptr) {
|
|
/* LCOV_EXCL_START */
|
|
malloc_fail(n * size);
|
|
exit(EXIT_FAILURE);
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void** malloc_nofail_vector_direct(int n, size_t size, void** freeptr)
|
|
{
|
|
void* ptr;
|
|
|
|
ptr = raid_malloc_vector_align(n, size, direct_size(), 0, freeptr);
|
|
|
|
if (!ptr) {
|
|
/* LCOV_EXCL_START */
|
|
malloc_fail(n * size);
|
|
exit(EXIT_FAILURE);
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void* malloc_nofail_test(size_t size)
|
|
{
|
|
void* ptr;
|
|
|
|
ptr = malloc_nofail(size);
|
|
|
|
mtest_vector(1, size, &ptr);
|
|
|
|
return ptr;
|
|
}
|
|
|
|
/**
|
|
* Fast memory test.
|
|
*
|
|
* It's similar at raid_mtest_vector() but faster because
|
|
* we have a lot of buffers to verify.
|
|
*/
|
|
static int fast_mtest_vector(int n, size_t size, void** vv)
|
|
{
|
|
int i, j;
|
|
|
|
/* test with all the bits */
|
|
for (i = 0; i < 8; ++i) {
|
|
unsigned char value = 1 << i;
|
|
|
|
/* fill first */
|
|
memset(vv[0], value, size);
|
|
|
|
/* copy to the next */
|
|
for (j = 1; j < n; ++j)
|
|
memcpy(vv[j], vv[j - 1], size);
|
|
|
|
/* compare with the previous */
|
|
for (j = 1; j <= n; ++j)
|
|
if (memcmp(vv[j % n], vv[j - 1], size) != 0)
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mtest_vector(int n, size_t size, void** vv)
|
|
{
|
|
if (fast_mtest_vector(n, size, vv) != 0) {
|
|
/* LCOV_EXCL_START */
|
|
log_fatal(EINTERNAL, "DANGER! Your RAM memory is broken! DO NOT PROCEED UNTIL FIXED!\n");
|
|
log_fatal(EINTERNAL, "Try running a memory test like http://www.memtest86.com/\n");
|
|
exit(EXIT_FAILURE);
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* crc */
|
|
|
|
uint32_t CRC32C_0[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
|
|
};
|
|
|
|
uint32_t CRC32C_1[256] = {
|
|
0x00000000, 0x13a29877, 0x274530ee, 0x34e7a899,
|
|
0x4e8a61dc, 0x5d28f9ab, 0x69cf5132, 0x7a6dc945,
|
|
0x9d14c3b8, 0x8eb65bcf, 0xba51f356, 0xa9f36b21,
|
|
0xd39ea264, 0xc03c3a13, 0xf4db928a, 0xe7790afd,
|
|
0x3fc5f181, 0x2c6769f6, 0x1880c16f, 0x0b225918,
|
|
0x714f905d, 0x62ed082a, 0x560aa0b3, 0x45a838c4,
|
|
0xa2d13239, 0xb173aa4e, 0x859402d7, 0x96369aa0,
|
|
0xec5b53e5, 0xfff9cb92, 0xcb1e630b, 0xd8bcfb7c,
|
|
0x7f8be302, 0x6c297b75, 0x58ced3ec, 0x4b6c4b9b,
|
|
0x310182de, 0x22a31aa9, 0x1644b230, 0x05e62a47,
|
|
0xe29f20ba, 0xf13db8cd, 0xc5da1054, 0xd6788823,
|
|
0xac154166, 0xbfb7d911, 0x8b507188, 0x98f2e9ff,
|
|
0x404e1283, 0x53ec8af4, 0x670b226d, 0x74a9ba1a,
|
|
0x0ec4735f, 0x1d66eb28, 0x298143b1, 0x3a23dbc6,
|
|
0xdd5ad13b, 0xcef8494c, 0xfa1fe1d5, 0xe9bd79a2,
|
|
0x93d0b0e7, 0x80722890, 0xb4958009, 0xa737187e,
|
|
0xff17c604, 0xecb55e73, 0xd852f6ea, 0xcbf06e9d,
|
|
0xb19da7d8, 0xa23f3faf, 0x96d89736, 0x857a0f41,
|
|
0x620305bc, 0x71a19dcb, 0x45463552, 0x56e4ad25,
|
|
0x2c896460, 0x3f2bfc17, 0x0bcc548e, 0x186eccf9,
|
|
0xc0d23785, 0xd370aff2, 0xe797076b, 0xf4359f1c,
|
|
0x8e585659, 0x9dface2e, 0xa91d66b7, 0xbabffec0,
|
|
0x5dc6f43d, 0x4e646c4a, 0x7a83c4d3, 0x69215ca4,
|
|
0x134c95e1, 0x00ee0d96, 0x3409a50f, 0x27ab3d78,
|
|
0x809c2506, 0x933ebd71, 0xa7d915e8, 0xb47b8d9f,
|
|
0xce1644da, 0xddb4dcad, 0xe9537434, 0xfaf1ec43,
|
|
0x1d88e6be, 0x0e2a7ec9, 0x3acdd650, 0x296f4e27,
|
|
0x53028762, 0x40a01f15, 0x7447b78c, 0x67e52ffb,
|
|
0xbf59d487, 0xacfb4cf0, 0x981ce469, 0x8bbe7c1e,
|
|
0xf1d3b55b, 0xe2712d2c, 0xd69685b5, 0xc5341dc2,
|
|
0x224d173f, 0x31ef8f48, 0x050827d1, 0x16aabfa6,
|
|
0x6cc776e3, 0x7f65ee94, 0x4b82460d, 0x5820de7a,
|
|
0xfbc3faf9, 0xe861628e, 0xdc86ca17, 0xcf245260,
|
|
0xb5499b25, 0xa6eb0352, 0x920cabcb, 0x81ae33bc,
|
|
0x66d73941, 0x7575a136, 0x419209af, 0x523091d8,
|
|
0x285d589d, 0x3bffc0ea, 0x0f186873, 0x1cbaf004,
|
|
0xc4060b78, 0xd7a4930f, 0xe3433b96, 0xf0e1a3e1,
|
|
0x8a8c6aa4, 0x992ef2d3, 0xadc95a4a, 0xbe6bc23d,
|
|
0x5912c8c0, 0x4ab050b7, 0x7e57f82e, 0x6df56059,
|
|
0x1798a91c, 0x043a316b, 0x30dd99f2, 0x237f0185,
|
|
0x844819fb, 0x97ea818c, 0xa30d2915, 0xb0afb162,
|
|
0xcac27827, 0xd960e050, 0xed8748c9, 0xfe25d0be,
|
|
0x195cda43, 0x0afe4234, 0x3e19eaad, 0x2dbb72da,
|
|
0x57d6bb9f, 0x447423e8, 0x70938b71, 0x63311306,
|
|
0xbb8de87a, 0xa82f700d, 0x9cc8d894, 0x8f6a40e3,
|
|
0xf50789a6, 0xe6a511d1, 0xd242b948, 0xc1e0213f,
|
|
0x26992bc2, 0x353bb3b5, 0x01dc1b2c, 0x127e835b,
|
|
0x68134a1e, 0x7bb1d269, 0x4f567af0, 0x5cf4e287,
|
|
0x04d43cfd, 0x1776a48a, 0x23910c13, 0x30339464,
|
|
0x4a5e5d21, 0x59fcc556, 0x6d1b6dcf, 0x7eb9f5b8,
|
|
0x99c0ff45, 0x8a626732, 0xbe85cfab, 0xad2757dc,
|
|
0xd74a9e99, 0xc4e806ee, 0xf00fae77, 0xe3ad3600,
|
|
0x3b11cd7c, 0x28b3550b, 0x1c54fd92, 0x0ff665e5,
|
|
0x759baca0, 0x663934d7, 0x52de9c4e, 0x417c0439,
|
|
0xa6050ec4, 0xb5a796b3, 0x81403e2a, 0x92e2a65d,
|
|
0xe88f6f18, 0xfb2df76f, 0xcfca5ff6, 0xdc68c781,
|
|
0x7b5fdfff, 0x68fd4788, 0x5c1aef11, 0x4fb87766,
|
|
0x35d5be23, 0x26772654, 0x12908ecd, 0x013216ba,
|
|
0xe64b1c47, 0xf5e98430, 0xc10e2ca9, 0xd2acb4de,
|
|
0xa8c17d9b, 0xbb63e5ec, 0x8f844d75, 0x9c26d502,
|
|
0x449a2e7e, 0x5738b609, 0x63df1e90, 0x707d86e7,
|
|
0x0a104fa2, 0x19b2d7d5, 0x2d557f4c, 0x3ef7e73b,
|
|
0xd98eedc6, 0xca2c75b1, 0xfecbdd28, 0xed69455f,
|
|
0x97048c1a, 0x84a6146d, 0xb041bcf4, 0xa3e32483
|
|
};
|
|
|
|
uint32_t CRC32C_2[256] = {
|
|
0x00000000, 0xa541927e, 0x4f6f520d, 0xea2ec073,
|
|
0x9edea41a, 0x3b9f3664, 0xd1b1f617, 0x74f06469,
|
|
0x38513ec5, 0x9d10acbb, 0x773e6cc8, 0xd27ffeb6,
|
|
0xa68f9adf, 0x03ce08a1, 0xe9e0c8d2, 0x4ca15aac,
|
|
0x70a27d8a, 0xd5e3eff4, 0x3fcd2f87, 0x9a8cbdf9,
|
|
0xee7cd990, 0x4b3d4bee, 0xa1138b9d, 0x045219e3,
|
|
0x48f3434f, 0xedb2d131, 0x079c1142, 0xa2dd833c,
|
|
0xd62de755, 0x736c752b, 0x9942b558, 0x3c032726,
|
|
0xe144fb14, 0x4405696a, 0xae2ba919, 0x0b6a3b67,
|
|
0x7f9a5f0e, 0xdadbcd70, 0x30f50d03, 0x95b49f7d,
|
|
0xd915c5d1, 0x7c5457af, 0x967a97dc, 0x333b05a2,
|
|
0x47cb61cb, 0xe28af3b5, 0x08a433c6, 0xade5a1b8,
|
|
0x91e6869e, 0x34a714e0, 0xde89d493, 0x7bc846ed,
|
|
0x0f382284, 0xaa79b0fa, 0x40577089, 0xe516e2f7,
|
|
0xa9b7b85b, 0x0cf62a25, 0xe6d8ea56, 0x43997828,
|
|
0x37691c41, 0x92288e3f, 0x78064e4c, 0xdd47dc32,
|
|
0xc76580d9, 0x622412a7, 0x880ad2d4, 0x2d4b40aa,
|
|
0x59bb24c3, 0xfcfab6bd, 0x16d476ce, 0xb395e4b0,
|
|
0xff34be1c, 0x5a752c62, 0xb05bec11, 0x151a7e6f,
|
|
0x61ea1a06, 0xc4ab8878, 0x2e85480b, 0x8bc4da75,
|
|
0xb7c7fd53, 0x12866f2d, 0xf8a8af5e, 0x5de93d20,
|
|
0x29195949, 0x8c58cb37, 0x66760b44, 0xc337993a,
|
|
0x8f96c396, 0x2ad751e8, 0xc0f9919b, 0x65b803e5,
|
|
0x1148678c, 0xb409f5f2, 0x5e273581, 0xfb66a7ff,
|
|
0x26217bcd, 0x8360e9b3, 0x694e29c0, 0xcc0fbbbe,
|
|
0xb8ffdfd7, 0x1dbe4da9, 0xf7908dda, 0x52d11fa4,
|
|
0x1e704508, 0xbb31d776, 0x511f1705, 0xf45e857b,
|
|
0x80aee112, 0x25ef736c, 0xcfc1b31f, 0x6a802161,
|
|
0x56830647, 0xf3c29439, 0x19ec544a, 0xbcadc634,
|
|
0xc85da25d, 0x6d1c3023, 0x8732f050, 0x2273622e,
|
|
0x6ed23882, 0xcb93aafc, 0x21bd6a8f, 0x84fcf8f1,
|
|
0xf00c9c98, 0x554d0ee6, 0xbf63ce95, 0x1a225ceb,
|
|
0x8b277743, 0x2e66e53d, 0xc448254e, 0x6109b730,
|
|
0x15f9d359, 0xb0b84127, 0x5a968154, 0xffd7132a,
|
|
0xb3764986, 0x1637dbf8, 0xfc191b8b, 0x595889f5,
|
|
0x2da8ed9c, 0x88e97fe2, 0x62c7bf91, 0xc7862def,
|
|
0xfb850ac9, 0x5ec498b7, 0xb4ea58c4, 0x11abcaba,
|
|
0x655baed3, 0xc01a3cad, 0x2a34fcde, 0x8f756ea0,
|
|
0xc3d4340c, 0x6695a672, 0x8cbb6601, 0x29faf47f,
|
|
0x5d0a9016, 0xf84b0268, 0x1265c21b, 0xb7245065,
|
|
0x6a638c57, 0xcf221e29, 0x250cde5a, 0x804d4c24,
|
|
0xf4bd284d, 0x51fcba33, 0xbbd27a40, 0x1e93e83e,
|
|
0x5232b292, 0xf77320ec, 0x1d5de09f, 0xb81c72e1,
|
|
0xccec1688, 0x69ad84f6, 0x83834485, 0x26c2d6fb,
|
|
0x1ac1f1dd, 0xbf8063a3, 0x55aea3d0, 0xf0ef31ae,
|
|
0x841f55c7, 0x215ec7b9, 0xcb7007ca, 0x6e3195b4,
|
|
0x2290cf18, 0x87d15d66, 0x6dff9d15, 0xc8be0f6b,
|
|
0xbc4e6b02, 0x190ff97c, 0xf321390f, 0x5660ab71,
|
|
0x4c42f79a, 0xe90365e4, 0x032da597, 0xa66c37e9,
|
|
0xd29c5380, 0x77ddc1fe, 0x9df3018d, 0x38b293f3,
|
|
0x7413c95f, 0xd1525b21, 0x3b7c9b52, 0x9e3d092c,
|
|
0xeacd6d45, 0x4f8cff3b, 0xa5a23f48, 0x00e3ad36,
|
|
0x3ce08a10, 0x99a1186e, 0x738fd81d, 0xd6ce4a63,
|
|
0xa23e2e0a, 0x077fbc74, 0xed517c07, 0x4810ee79,
|
|
0x04b1b4d5, 0xa1f026ab, 0x4bdee6d8, 0xee9f74a6,
|
|
0x9a6f10cf, 0x3f2e82b1, 0xd50042c2, 0x7041d0bc,
|
|
0xad060c8e, 0x08479ef0, 0xe2695e83, 0x4728ccfd,
|
|
0x33d8a894, 0x96993aea, 0x7cb7fa99, 0xd9f668e7,
|
|
0x9557324b, 0x3016a035, 0xda386046, 0x7f79f238,
|
|
0x0b899651, 0xaec8042f, 0x44e6c45c, 0xe1a75622,
|
|
0xdda47104, 0x78e5e37a, 0x92cb2309, 0x378ab177,
|
|
0x437ad51e, 0xe63b4760, 0x0c158713, 0xa954156d,
|
|
0xe5f54fc1, 0x40b4ddbf, 0xaa9a1dcc, 0x0fdb8fb2,
|
|
0x7b2bebdb, 0xde6a79a5, 0x3444b9d6, 0x91052ba8
|
|
};
|
|
|
|
uint32_t CRC32C_3[256] = {
|
|
0x00000000, 0xdd45aab8, 0xbf672381, 0x62228939,
|
|
0x7b2231f3, 0xa6679b4b, 0xc4451272, 0x1900b8ca,
|
|
0xf64463e6, 0x2b01c95e, 0x49234067, 0x9466eadf,
|
|
0x8d665215, 0x5023f8ad, 0x32017194, 0xef44db2c,
|
|
0xe964b13d, 0x34211b85, 0x560392bc, 0x8b463804,
|
|
0x924680ce, 0x4f032a76, 0x2d21a34f, 0xf06409f7,
|
|
0x1f20d2db, 0xc2657863, 0xa047f15a, 0x7d025be2,
|
|
0x6402e328, 0xb9474990, 0xdb65c0a9, 0x06206a11,
|
|
0xd725148b, 0x0a60be33, 0x6842370a, 0xb5079db2,
|
|
0xac072578, 0x71428fc0, 0x136006f9, 0xce25ac41,
|
|
0x2161776d, 0xfc24ddd5, 0x9e0654ec, 0x4343fe54,
|
|
0x5a43469e, 0x8706ec26, 0xe524651f, 0x3861cfa7,
|
|
0x3e41a5b6, 0xe3040f0e, 0x81268637, 0x5c632c8f,
|
|
0x45639445, 0x98263efd, 0xfa04b7c4, 0x27411d7c,
|
|
0xc805c650, 0x15406ce8, 0x7762e5d1, 0xaa274f69,
|
|
0xb327f7a3, 0x6e625d1b, 0x0c40d422, 0xd1057e9a,
|
|
0xaba65fe7, 0x76e3f55f, 0x14c17c66, 0xc984d6de,
|
|
0xd0846e14, 0x0dc1c4ac, 0x6fe34d95, 0xb2a6e72d,
|
|
0x5de23c01, 0x80a796b9, 0xe2851f80, 0x3fc0b538,
|
|
0x26c00df2, 0xfb85a74a, 0x99a72e73, 0x44e284cb,
|
|
0x42c2eeda, 0x9f874462, 0xfda5cd5b, 0x20e067e3,
|
|
0x39e0df29, 0xe4a57591, 0x8687fca8, 0x5bc25610,
|
|
0xb4868d3c, 0x69c32784, 0x0be1aebd, 0xd6a40405,
|
|
0xcfa4bccf, 0x12e11677, 0x70c39f4e, 0xad8635f6,
|
|
0x7c834b6c, 0xa1c6e1d4, 0xc3e468ed, 0x1ea1c255,
|
|
0x07a17a9f, 0xdae4d027, 0xb8c6591e, 0x6583f3a6,
|
|
0x8ac7288a, 0x57828232, 0x35a00b0b, 0xe8e5a1b3,
|
|
0xf1e51979, 0x2ca0b3c1, 0x4e823af8, 0x93c79040,
|
|
0x95e7fa51, 0x48a250e9, 0x2a80d9d0, 0xf7c57368,
|
|
0xeec5cba2, 0x3380611a, 0x51a2e823, 0x8ce7429b,
|
|
0x63a399b7, 0xbee6330f, 0xdcc4ba36, 0x0181108e,
|
|
0x1881a844, 0xc5c402fc, 0xa7e68bc5, 0x7aa3217d,
|
|
0x52a0c93f, 0x8fe56387, 0xedc7eabe, 0x30824006,
|
|
0x2982f8cc, 0xf4c75274, 0x96e5db4d, 0x4ba071f5,
|
|
0xa4e4aad9, 0x79a10061, 0x1b838958, 0xc6c623e0,
|
|
0xdfc69b2a, 0x02833192, 0x60a1b8ab, 0xbde41213,
|
|
0xbbc47802, 0x6681d2ba, 0x04a35b83, 0xd9e6f13b,
|
|
0xc0e649f1, 0x1da3e349, 0x7f816a70, 0xa2c4c0c8,
|
|
0x4d801be4, 0x90c5b15c, 0xf2e73865, 0x2fa292dd,
|
|
0x36a22a17, 0xebe780af, 0x89c50996, 0x5480a32e,
|
|
0x8585ddb4, 0x58c0770c, 0x3ae2fe35, 0xe7a7548d,
|
|
0xfea7ec47, 0x23e246ff, 0x41c0cfc6, 0x9c85657e,
|
|
0x73c1be52, 0xae8414ea, 0xcca69dd3, 0x11e3376b,
|
|
0x08e38fa1, 0xd5a62519, 0xb784ac20, 0x6ac10698,
|
|
0x6ce16c89, 0xb1a4c631, 0xd3864f08, 0x0ec3e5b0,
|
|
0x17c35d7a, 0xca86f7c2, 0xa8a47efb, 0x75e1d443,
|
|
0x9aa50f6f, 0x47e0a5d7, 0x25c22cee, 0xf8878656,
|
|
0xe1873e9c, 0x3cc29424, 0x5ee01d1d, 0x83a5b7a5,
|
|
0xf90696d8, 0x24433c60, 0x4661b559, 0x9b241fe1,
|
|
0x8224a72b, 0x5f610d93, 0x3d4384aa, 0xe0062e12,
|
|
0x0f42f53e, 0xd2075f86, 0xb025d6bf, 0x6d607c07,
|
|
0x7460c4cd, 0xa9256e75, 0xcb07e74c, 0x16424df4,
|
|
0x106227e5, 0xcd278d5d, 0xaf050464, 0x7240aedc,
|
|
0x6b401616, 0xb605bcae, 0xd4273597, 0x09629f2f,
|
|
0xe6264403, 0x3b63eebb, 0x59416782, 0x8404cd3a,
|
|
0x9d0475f0, 0x4041df48, 0x22635671, 0xff26fcc9,
|
|
0x2e238253, 0xf36628eb, 0x9144a1d2, 0x4c010b6a,
|
|
0x5501b3a0, 0x88441918, 0xea669021, 0x37233a99,
|
|
0xd867e1b5, 0x05224b0d, 0x6700c234, 0xba45688c,
|
|
0xa345d046, 0x7e007afe, 0x1c22f3c7, 0xc167597f,
|
|
0xc747336e, 0x1a0299d6, 0x782010ef, 0xa565ba57,
|
|
0xbc65029d, 0x6120a825, 0x0302211c, 0xde478ba4,
|
|
0x31035088, 0xec46fa30, 0x8e647309, 0x5321d9b1,
|
|
0x4a21617b, 0x9764cbc3, 0xf54642fa, 0x2803e842
|
|
};
|
|
|
|
#if CONFIG_X86
|
|
int crc_x86;
|
|
#endif
|
|
|
|
uint32_t crc32c_gen(uint32_t crc, const unsigned char* ptr, unsigned size)
|
|
{
|
|
crc ^= CRC_IV;
|
|
|
|
crc = crc32c_gen_plain(crc, ptr, size);
|
|
|
|
crc ^= CRC_IV;
|
|
|
|
return crc;
|
|
}
|
|
|
|
#if CONFIG_X86
|
|
uint32_t crc32c_x86(uint32_t crc, const unsigned char* ptr, unsigned size)
|
|
{
|
|
crc ^= CRC_IV;
|
|
|
|
crc = crc32c_x86_plain(crc, ptr, size);
|
|
|
|
crc ^= CRC_IV;
|
|
|
|
return crc;
|
|
}
|
|
#endif
|
|
|
|
uint32_t (*crc32c)(uint32_t crc, const unsigned char* ptr, unsigned size);
|
|
|
|
void crc32c_init(void)
|
|
{
|
|
crc32c = crc32c_gen;
|
|
#if CONFIG_X86
|
|
if (raid_cpu_has_crc32()) {
|
|
crc_x86 = 1;
|
|
crc32c = crc32c_x86;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* byte operations */
|
|
|
|
/*
|
|
* Rotate left.
|
|
* In x86/x64 they are optimized with a single assembler instruction.
|
|
*/
|
|
static inline uint32_t util_rotl32(uint32_t x, int8_t r)
|
|
{
|
|
return (x << r) | (x >> (32 - r));
|
|
}
|
|
|
|
static inline uint64_t util_rotl64(uint64_t x, int8_t r)
|
|
{
|
|
return (x << r) | (x >> (64 - r));
|
|
}
|
|
|
|
/*
|
|
* Rotate right.
|
|
* In x86/x64 they are optimized with a single assembler instruction.
|
|
*/
|
|
static inline uint32_t util_rotr32(uint32_t x, int8_t r)
|
|
{
|
|
return (x >> r) | (x << (32 - r));
|
|
}
|
|
|
|
static inline uint64_t util_rotr64(uint64_t x, int8_t r)
|
|
{
|
|
return (x >> r) | (x << (64 - r));
|
|
}
|
|
|
|
/**
|
|
* Swap endianness.
|
|
* They are needed only if BigEndian.
|
|
*/
|
|
#if defined(__GNUC__)
|
|
|
|
#define util_swap32(x) __builtin_bswap32(x)
|
|
#define util_swap64(x) __builtin_bswap64(x)
|
|
|
|
#elif HAVE_BYTESWAP_H
|
|
|
|
#include <byteswap.h>
|
|
|
|
#define util_swap32(x) bswap_32(x)
|
|
#define util_swap64(x) bswap_64(x)
|
|
|
|
#else
|
|
static inline uint32_t util_swap32(uint32_t v)
|
|
{
|
|
return (util_rotl32(v, 8) & 0x00ff00ff)
|
|
| (util_rotl32(v, 24) & 0xff00ff00);
|
|
}
|
|
|
|
static inline uint64_t util_swap64(uint64_t v)
|
|
{
|
|
return (util_rotl64(v, 8) & 0x000000ff000000ffULL)
|
|
| (util_rotl64(v, 24) & 0x0000ff000000ff00ULL)
|
|
| (util_rotl64(v, 40) & 0x00ff000000ff0000ULL)
|
|
| (util_rotl64(v, 56) & 0xff000000ff000000ULL);
|
|
}
|
|
#endif
|
|
|
|
static inline uint8_t util_read8(const void* void_ptr)
|
|
{
|
|
const uint8_t* ptr = void_ptr;
|
|
return ptr[0];
|
|
}
|
|
|
|
static inline uint16_t util_read16(const void* void_ptr)
|
|
{
|
|
const uint8_t* ptr = void_ptr;
|
|
return ptr[0] + (ptr[1] << 8);
|
|
}
|
|
|
|
static inline uint32_t util_read32(const void* ptr)
|
|
{
|
|
uint32_t v;
|
|
memcpy(&v, ptr, sizeof(v));
|
|
#if WORDS_BIGENDIAN
|
|
v = util_swap32(v);
|
|
#endif
|
|
return v;
|
|
}
|
|
|
|
static inline uint64_t util_read64(const void* ptr)
|
|
{
|
|
uint64_t v;
|
|
memcpy(&v, ptr, sizeof(v));
|
|
#if WORDS_BIGENDIAN
|
|
v = util_swap64(v);
|
|
#endif
|
|
return v;
|
|
}
|
|
|
|
static inline void util_write32(void* ptr, uint32_t v)
|
|
{
|
|
#if WORDS_BIGENDIAN
|
|
v = util_swap32(v);
|
|
#endif
|
|
memcpy(ptr, &v, sizeof(v));
|
|
}
|
|
|
|
static inline void util_write64(void* ptr, uint64_t v)
|
|
{
|
|
#if WORDS_BIGENDIAN
|
|
v = util_swap64(v);
|
|
#endif
|
|
memcpy(ptr, &v, sizeof(v));
|
|
}
|
|
|
|
/*
|
|
* 64*64 -> 128bit multiply function.
|
|
*
|
|
* @param A Address of 64-bit number.
|
|
* @param B Address of 64-bit number.
|
|
*
|
|
* Calculates 128-bit C = *A * *B.
|
|
*
|
|
* Overwrites A contents with C's low 64 bits.
|
|
* Overwrites B contents with C's high 64 bits.
|
|
*/
|
|
#if defined(__x86_64__) || defined(_M_X64)
|
|
/*
|
|
* This is intentionally placed before the __SIZEOF_INT128__ implementation.
|
|
*
|
|
* This implementation happens to generate more efficient code.
|
|
* While this likely depends only on the compiler, as long as it remains faster,
|
|
* we will keep it in this order.
|
|
*/
|
|
static inline void util_mum(uint64_t* A, uint64_t* B)
|
|
{
|
|
uint64_t a = *A;
|
|
uint64_t b = *B;
|
|
uint64_t low, high;
|
|
|
|
__asm__ (
|
|
"mulq %3"
|
|
: "=a" (low), "=d" (high)
|
|
: "a" (a), "rm" (b)
|
|
: "cc"
|
|
);
|
|
|
|
*A = low;
|
|
*B = high;
|
|
}
|
|
#elif defined(__SIZEOF_INT128__)
|
|
static inline void util_mum(uint64_t* A, uint64_t* B)
|
|
{
|
|
__uint128_t product = ((__uint128_t)*A) * ((__uint128_t)*B);
|
|
*A = (uint64_t)product;
|
|
*B = (uint64_t)(product >> 64);
|
|
}
|
|
#elif defined(__aarch64__) || defined(_M_ARM64)
|
|
/*
|
|
* This is intentionally placed after the __SIZEOF_INT128__ implementation.
|
|
*
|
|
* Although the code looks correct, there is a report of this
|
|
* implementation failing the self-test on macOS (Darwin 25.4.0, arm64)
|
|
* with Apple clang 21.0.0 (clang-2100.0.123.102).
|
|
*
|
|
* See: https://github.com/amadvance/snapraid/issues/43
|
|
*
|
|
* Note that the implementation is the same of OpenSSL:
|
|
*
|
|
* #elif defined(__aarch64__) && defined(SIXTY_FOUR_BIT_LONG)
|
|
* #if defined(__GNUC__) && __GNUC__ >= 2
|
|
* #define BN_UMULT_HIGH(a, b) ({ \
|
|
* register BN_ULONG ret; \
|
|
* asm ("umulh %0,%1,%2" \
|
|
* : "=r"(ret) \
|
|
* : "r"(a), "r"(b)); \
|
|
* ret; })
|
|
* #endif
|
|
* #endif
|
|
*
|
|
* See: https://github.com/openssl/openssl/blob/0463cbf185680e66a3a8960f10cd33001377d28e/crypto/bn/bn_local.h#L439
|
|
*/
|
|
static inline void util_mum(uint64_t* A, uint64_t* B)
|
|
{
|
|
uint64_t a = *A;
|
|
uint64_t b = *B;
|
|
uint64_t low = a * b;
|
|
uint64_t high;
|
|
__asm__ (
|
|
"umulh %0, %1, %2"
|
|
: "=r" (high)
|
|
: "r" (a), "r" (b)
|
|
);
|
|
*A = low;
|
|
*B = high;
|
|
}
|
|
#else
|
|
static inline void util_mum(uint64_t* A, uint64_t* B)
|
|
{
|
|
uint64_t a = *A;
|
|
uint64_t b = *B;
|
|
|
|
uint64_t a_lo = (uint32_t)a;
|
|
uint64_t a_hi = a >> 32;
|
|
uint64_t b_lo = (uint32_t)b;
|
|
uint64_t b_hi = b >> 32;
|
|
|
|
uint64_t p0 = a_lo * b_lo;
|
|
uint64_t p1 = a_lo * b_hi;
|
|
uint64_t p2 = a_hi * b_lo;
|
|
uint64_t p3 = a_hi * b_hi;
|
|
|
|
uint64_t middle = p1 + (p0 >> 32) + (uint32_t)p2;
|
|
uint64_t low = (middle << 32) | (uint32_t)p0;
|
|
uint64_t high = p3 + (middle >> 32) + (p2 >> 32);
|
|
|
|
*A = low;
|
|
*B = high;
|
|
}
|
|
#endif
|
|
|
|
int util_selftest(void)
|
|
{
|
|
/* rotate left 32-bit */
|
|
if (util_rotl32(0x00000001U, 1) != 0x00000002U) return -1;
|
|
if (util_rotl32(0x80000000U, 1) != 0x00000001U) return -1;
|
|
if (util_rotl32(0x00000001U, 31) != 0x80000000U) return -1;
|
|
if (util_rotl32(0x12345678U, 4) != 0x23456781U) return -1;
|
|
if (util_rotl32(0x12345678U, 0) != 0x12345678U) return -1;
|
|
if (util_rotl32(0x12345678U, 32) != 0x12345678U) return -1; /* r % 32 == 0 */
|
|
|
|
/* rotate right 32-bit */
|
|
if (util_rotr32(0x00000001U, 1) != 0x80000000U) return -1;
|
|
if (util_rotr32(0x80000000U, 1) != 0x40000000U) return -1;
|
|
if (util_rotr32(0x00000002U, 1) != 0x00000001U) return -1;
|
|
if (util_rotr32(0x12345678U, 4) != 0x81234567U) return -1;
|
|
|
|
/* rotate left 64-bit */
|
|
if (util_rotl64(1ULL, 1) != 2ULL) return -1;
|
|
if (util_rotl64(1ULL << 63, 1) != 1ULL) return -1;
|
|
if (util_rotl64(0x123456789ABCDEF0ULL, 8) != 0x3456789ABCDEF012ULL) return -1;
|
|
if (util_rotl64(0x123456789ABCDEF0ULL, 0) != 0x123456789ABCDEF0ULL) return -1;
|
|
|
|
/* rotate right 64-bit */
|
|
if (util_rotr64(1ULL, 1) != (1ULL << 63)) return -1;
|
|
if (util_rotr64(2ULL, 1) != 1ULL) return -1;
|
|
if (util_rotr64(0x123456789ABCDEF0ULL, 8) != 0xF0123456789ABCDEULL) return -1;
|
|
|
|
/* util_mum tests */
|
|
uint64_t a, b;
|
|
|
|
/* small values */
|
|
a = 3; b = 4;
|
|
util_mum(&a, &b);
|
|
if (a != 12 || b != 0) return -1;
|
|
|
|
/* 1 * anything */
|
|
a = 0xFFFFFFFFFFFFFFFFULL; b = 1;
|
|
util_mum(&a, &b);
|
|
if (a != 0xFFFFFFFFFFFFFFFFULL || b != 0) return -1;
|
|
|
|
/* (2^32) * (2^32) = 2^64 */
|
|
a = 1ULL << 32; b = 1ULL << 32;
|
|
util_mum(&a, &b);
|
|
if (a != 0 || b != 1) return -1;
|
|
|
|
/* max uint64 * max uint64 */
|
|
a = 0xFFFFFFFFFFFFFFFFULL; b = 0xFFFFFFFFFFFFFFFFULL;
|
|
util_mum(&a, &b);
|
|
if (a != 1 || b != 0xFFFFFFFFFFFFFFFEULL) return -1;
|
|
|
|
/* larger random-ish test */
|
|
a = 0x0123456789ABCDEFULL;
|
|
b = 0xFEDCBA9876543210ULL;
|
|
util_mum(&a, &b);
|
|
if (a != 0x2236D88FE5618CF0ULL || b != 0x121FA00AD77D742ULL) return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* hash */
|
|
|
|
const char* memhashname(unsigned kind)
|
|
{
|
|
switch (kind) {
|
|
case HASH_MURMUR3 : return "murmur3";
|
|
case HASH_SPOOKY2 : return "spooky2";
|
|
case HASH_METRO : return "metro";
|
|
case HASH_MUSEAIR : return "museair";
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
unsigned membesthash(void)
|
|
{
|
|
#ifdef CONFIG_X86
|
|
if (sizeof(void*) == 4 && !raid_cpu_has_slowmult())
|
|
return HASH_MURMUR3;
|
|
else
|
|
return HASH_SPOOKY2;
|
|
#else
|
|
if (sizeof(void*) == 4)
|
|
return HASH_MURMUR3;
|
|
else
|
|
return HASH_SPOOKY2;
|
|
#endif
|
|
}
|
|
|
|
#include "murmur3.c"
|
|
#include "spooky2.c"
|
|
#include "metro.c"
|
|
#include "museair.c"
|
|
|
|
void memhash(unsigned kind, const unsigned char* seed, void* digest, const void* src, size_t size)
|
|
{
|
|
switch (kind) {
|
|
case HASH_MURMUR3 :
|
|
MurmurHash3_x86_128(src, size, seed, digest);
|
|
break;
|
|
case HASH_SPOOKY2 :
|
|
SpookyHash128(src, size, seed, digest);
|
|
break;
|
|
case HASH_METRO :
|
|
MetroHash128(src, size, seed, digest);
|
|
break;
|
|
case HASH_MUSEAIR :
|
|
MuseAirLoong(src, size, seed, digest);
|
|
break;
|
|
default :
|
|
/* LCOV_EXCL_START */
|
|
log_fatal(EINTERNAL, "Internal inconsistency in hash function %u\n", kind);
|
|
exit(EXIT_FAILURE);
|
|
break;
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
}
|
|
|
|
const char* hash_config_name(unsigned kind)
|
|
{
|
|
switch (kind) {
|
|
case HASH_UNDEFINED : return "undefined";
|
|
case HASH_MURMUR3 : return "murmur3";
|
|
case HASH_SPOOKY2 : return "spooky2";
|
|
case HASH_METRO : return "metro";
|
|
case HASH_MUSEAIR : return "museair";
|
|
default :
|
|
/* LCOV_EXCL_START */
|
|
return "unknown";
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
}
|
|
|
|
unsigned memdiff(const unsigned char* data1, const unsigned char* data2, size_t size)
|
|
{
|
|
size_t i;
|
|
unsigned count;
|
|
|
|
count = 0;
|
|
for (i = 0; i < size; ++i) {
|
|
unsigned j;
|
|
unsigned char diff = data1[i] ^ data2[i];
|
|
for (j = 0; j < 8; ++j) {
|
|
if ((diff & 1) != 0)
|
|
++count;
|
|
diff >>= 1;
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* lock */
|
|
|
|
#if HAVE_LOCKFILE
|
|
int lock_lock(const char* file)
|
|
{
|
|
int f;
|
|
|
|
f = open(file, O_RDONLY | O_CREAT, 0600);
|
|
if (f == -1) {
|
|
/* LCOV_EXCL_START */
|
|
return -1;
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
|
|
/* exclusive lock, not blocking */
|
|
if (flock(f, LOCK_EX | LOCK_NB) == -1) {
|
|
/* LCOV_EXCL_START */
|
|
close(f);
|
|
return -1;
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
|
|
return f;
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_LOCKFILE
|
|
int lock_unlock(int f)
|
|
{
|
|
/*
|
|
* Intentionally don't remove the lock file.
|
|
* Removing it just introduces race course with other process
|
|
* that could have already opened it.
|
|
*/
|
|
if (close(f) == -1) {
|
|
/* LCOV_EXCL_START */
|
|
return -1;
|
|
/* LCOV_EXCL_STOP */
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************/
|
|
/* muldiv */
|
|
|
|
unsigned muldiv(uint64_t v, uint64_t mul, uint64_t div)
|
|
{
|
|
if (!div)
|
|
return 0;
|
|
|
|
return (uint32_t)(v * mul / div);
|
|
}
|
|
|
|
unsigned muldiv_upper(uint64_t v, uint64_t mul, uint64_t div)
|
|
{
|
|
if (!div)
|
|
return 0;
|
|
|
|
return (uint32_t)((v * mul + div - 1) / div);
|
|
}
|
|
|