+++ /dev/null
-/* MurmurHash3 was written by Austin Appleby, and is placed in the public
- domain. The author hereby disclaims copyright to this source code.
-
- Note - The x86 and x64 versions do _not_ produce the same results, as the
- algorithms are optimized for their respective platforms. You can still
- compile and run any of them on any platform, but your performance with the
- non-native version will be less than optimal.
-
- Adapted for Dovecot by Aki Tuomi <aki.tuomi@dovecot.fi> 2017-11-27
-*/
-
-#include "lib.h"
-#include "murmurhash3.h"
-
-#define ROTL32(x,y) bits_rotl32(x,y)
-#define ROTL64(x,y) bits_rotl64(x,y)
-
-#define BIG_CONSTANT(x) (x##LLU)
-
-//-----------------------------------------------------------------------------
-// Block read - if your platform needs to do endian-swapping or can only
-// handle aligned reads, do the conversion here
-
-static inline uint32_t getblock32(const uint32_t *p, int i)
-{
- return le32_to_cpu(p[i]);
-}
-
-//-----------------------------------------------------------------------------
-// Finalization mix - force all bits of a hash block to avalanche
-
-static inline uint32_t fmix32(uint32_t h)
-{
- h ^= h >> 16;
- h *= 0x85ebca6b;
- h ^= h >> 13;
- h *= 0xc2b2ae35;
- h ^= h >> 16;
-
- return h;
-}
-
-//----------
-
-void murmurhash3_32 (const void *key, size_t len, uint32_t seed,
- unsigned char out[STATIC_ARRAY MURMURHASH3_32_RESULTBYTES])
-{
- const uint8_t *data = (const uint8_t *)key;
- size_t nblocks = len / 4;
-
- uint32_t h1 = seed;
-
- uint32_t c1 = 0xcc9e2d51;
- uint32_t c2 = 0x1b873593;
- //----------
- // body
-
- const uint32_t *blocks = (const uint32_t *)data;
-
- for(size_t i = 0; i < nblocks; i++)
- {
- uint32_t k1 = getblock32(blocks,i);
-
- k1 *= c1;
- k1 = ROTL32(k1,15);
- k1 *= c2;
-
- h1 ^= k1;
- h1 = ROTL32(h1,13);
- h1 = h1*5+0xe6546b64;
- }
-
- //----------
- // tail
-
- const uint8_t *tail = (const uint8_t *)(data + nblocks*4);
-
- uint32_t k1 = 0;
-
- switch(len & 3)
- {
- case 3: k1 ^= tail[2] << 16;
- /* fall through */
- case 2: k1 ^= tail[1] << 8;
- /* fall through */
- case 1: k1 ^= tail[0];
- k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
- };
-
- //----------
- // finalization
-
- h1 ^= len;
-
- h1 = fmix32(h1);
-
- h1 = cpu32_to_be(h1);
-
- memcpy(out, &h1, sizeof(h1));
-}
-
-//-----------------------------------------------------------------------------
-
-#ifdef _LP64
-
-static inline uint64_t getblock64(const uint64_t *p, int i)
-{
- return le64_to_cpu(p[i]);
-}
-
-static inline uint64_t fmix64(uint64_t k)
-{
- k ^= k >> 33;
- k *= BIG_CONSTANT(0xff51afd7ed558ccd);
- k ^= k >> 33;
- k *= BIG_CONSTANT(0xc4ceb9fe1a85ec53);
- k ^= k >> 33;
-
- return k;
-}
-
-void murmurhash3_128(const void *key, size_t len, uint32_t seed,
- unsigned char out[STATIC_ARRAY MURMURHASH3_128_RESULTBYTES])
-{
- const uint8_t *data = (const uint8_t *)key;
- size_t nblocks = len / 16;
-
- uint64_t h1 = seed;
- uint64_t h2 = seed;
-
- const uint64_t c1 = BIG_CONSTANT(0x87c37b91114253d5);
- const uint64_t c2 = BIG_CONSTANT(0x4cf5ad432745937f);
-
- //----------
- // body
-
- const uint64_t *blocks = (const uint64_t *)data;
-
- for(size_t i = 0; i < nblocks; i++)
- {
- uint64_t k1 = getblock64(blocks,i*2+0);
- uint64_t k2 = getblock64(blocks,i*2+1);
-
- k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
-
- h1 = ROTL64(h1,27); h1 += h2; h1 = h1*5+0x52dce729;
-
- k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
-
- h2 = ROTL64(h2,31); h2 += h1; h2 = h2*5+0x38495ab5;
- }
-
- //----------
- // tail
-
- const uint8_t *tail = (const uint8_t *)(data + nblocks*16);
-
- uint64_t k1 = 0;
- uint64_t k2 = 0;
-
- switch(len & 15)
- {
- case 15: k2 ^= ((uint64_t)tail[14]) << 48;
- /* fall through */
- case 14: k2 ^= ((uint64_t)tail[13]) << 40;
- /* fall through */
- case 13: k2 ^= ((uint64_t)tail[12]) << 32;
- /* fall through */
- case 12: k2 ^= ((uint64_t)tail[11]) << 24;
- /* fall through */
- case 11: k2 ^= ((uint64_t)tail[10]) << 16;
- /* fall through */
- case 10: k2 ^= ((uint64_t)tail[ 9]) << 8;
- /* fall through */
- case 9: k2 ^= ((uint64_t)tail[ 8]) << 0;
- k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
- /* fall through */
-
- case 8: k1 ^= ((uint64_t)tail[ 7]) << 56;
- /* fall through */
- case 7: k1 ^= ((uint64_t)tail[ 6]) << 48;
- /* fall through */
- case 6: k1 ^= ((uint64_t)tail[ 5]) << 40;
- /* fall through */
- case 5: k1 ^= ((uint64_t)tail[ 4]) << 32;
- /* fall through */
- case 4: k1 ^= ((uint64_t)tail[ 3]) << 24;
- /* fall through */
- case 3: k1 ^= ((uint64_t)tail[ 2]) << 16;
- /* fall through */
- case 2: k1 ^= ((uint64_t)tail[ 1]) << 8;
- /* fall through */
- case 1: k1 ^= ((uint64_t)tail[ 0]) << 0;
- k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
- };
-
- //----------
- // finalization
-
- h1 ^= len; h2 ^= len;
-
- h1 += h2;
- h2 += h1;
-
- h1 = fmix64(h1);
- h2 = fmix64(h2);
-
- h1 += h2;
- h2 += h1;
-
- h1 = cpu64_to_be(h1);
- h2 = cpu64_to_be(h2);
-
- memcpy(out, &h1, sizeof(h1));
- memcpy(out+sizeof(h1), &h2, sizeof(h2));
-}
-
-#else
-
-void murmurhash3_128(const void *key, size_t len, uint32_t seed,
- unsigned char out[STATIC_ARRAY MURMURHASH3_128_RESULTBYTES])
-{
- const uint8_t *data = (const uint8_t *)key;
- size_t nblocks = len / 16;
-
- uint32_t h1 = seed;
- uint32_t h2 = seed;
- uint32_t h3 = seed;
- uint32_t h4 = seed;
-
- uint32_t c1 = 0x239b961b;
- uint32_t c2 = 0xab0e9789;
- uint32_t c3 = 0x38b34ae5;
- uint32_t c4 = 0xa1e38b93;
-
- //----------
- // body
-
- const uint32_t *blocks = (const uint32_t *)data;
-
- for(size_t i = 0 ; i < nblocks; i++)
- {
- uint32_t k1 = getblock32(blocks,i*4+0);
- uint32_t k2 = getblock32(blocks,i*4+1);
- uint32_t k3 = getblock32(blocks,i*4+2);
- uint32_t k4 = getblock32(blocks,i*4+3);
-
- k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
-
- h1 = ROTL32(h1,19); h1 += h2; h1 = h1*5+0x561ccd1b;
-
- k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
-
- h2 = ROTL32(h2,17); h2 += h3; h2 = h2*5+0x0bcaa747;
-
- k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
-
- h3 = ROTL32(h3,15); h3 += h4; h3 = h3*5+0x96cd1c35;
-
- k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
-
- h4 = ROTL32(h4,13); h4 += h1; h4 = h4*5+0x32ac3b17;
- }
-
- //----------
- // tail
-
- const uint8_t *tail = (const uint8_t *)(data + nblocks*16);
-
- uint32_t k1 = 0;
- uint32_t k2 = 0;
- uint32_t k3 = 0;
- uint32_t k4 = 0;
-
- switch(len & 15)
- {
- case 15: k4 ^= tail[14] << 16;
- /* fall through */
- case 14: k4 ^= tail[13] << 8;
- /* fall through */
- case 13: k4 ^= tail[12] << 0;
- k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
- /* fall through */
-
- case 12: k3 ^= tail[11] << 24;
- /* fall through */
- case 11: k3 ^= tail[10] << 16;
- /* fall through */
- case 10: k3 ^= tail[ 9] << 8;
- /* fall through */
- case 9: k3 ^= tail[ 8] << 0;
- k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
- /* fall through */
-
- case 8: k2 ^= tail[ 7] << 24;
- /* fall through */
- case 7: k2 ^= tail[ 6] << 16;
- /* fall through */
- case 6: k2 ^= tail[ 5] << 8;
- /* fall through */
- case 5: k2 ^= tail[ 4] << 0;
- k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
- /* fall through */
-
- case 4: k1 ^= tail[ 3] << 24;
- /* fall through */
- case 3: k1 ^= tail[ 2] << 16;
- /* fall through */
- case 2: k1 ^= tail[ 1] << 8;
- /* fall through */
- case 1: k1 ^= tail[ 0] << 0;
- k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
- };
-
- //----------
- // finalization
-
- h1 ^= len; h2 ^= len; h3 ^= len; h4 ^= len;
-
- h1 += h2; h1 += h3; h1 += h4;
- h2 += h1; h3 += h1; h4 += h1;
-
- h1 = fmix32(h1);
- h2 = fmix32(h2);
- h3 = fmix32(h3);
- h4 = fmix32(h4);
-
- h1 += h2; h1 += h3; h1 += h4;
- h2 += h1; h3 += h1; h4 += h1;
-
- h1 = cpu32_to_be(h1);
- h2 = cpu32_to_be(h2);
- h3 = cpu32_to_be(h3);
- h4 = cpu32_to_be(h4);
-
- memcpy(out, &h1, sizeof(h1));
- memcpy(out+sizeof(h1), &h2, sizeof(h2));
- memcpy(out+sizeof(h1)*2, &h3, sizeof(h3));
- memcpy(out+sizeof(h1)*3, &h4, sizeof(h4));
-}
-
-#endif
+++ /dev/null
-/* Copyright (c) 2018 Dovecot authors, see the included COPYING file */
-
-#include "test-lib.h"
-#include "murmurhash3.h"
-
-struct murmur3_test_vectors {
- const char *input;
- size_t len;
- uint32_t seed;
-
- /* murmurhash3_128() produces a different output on ILP32 and LP64
- systems (by design). Therefore, we must use different expected
- results based on what system we're on. We define both all the
- time, but use the below pre-processor magic to select which
- version we'll use. */
- uint8_t result_ilp32[MURMURHASH3_128_RESULTBYTES]; /* fits all results */
- uint8_t result_lp64[MURMURHASH3_128_RESULTBYTES]; /* fits all results */
-#ifdef _LP64
-#define result result_lp64
-#else
-#define result result_ilp32
-#endif
-};
-
-static void test_murmurhash3_algorithm(const char *name,
- void (*func)(const void*,size_t,uint32_t,unsigned char[]),
- size_t result_size,
- const struct murmur3_test_vectors *vectors,
- unsigned int tests)
-{
- test_begin(t_strdup_printf("murmurhash3 (%s)", name));
-
- for(unsigned int i = 0; i < tests; i++) {
- unsigned char result[result_size];
- func(vectors[i].input, vectors[i].len, vectors[i].seed, result);
- test_assert_idx(memcmp(result, vectors[i].result, sizeof(result)) == 0, i);
- }
-
- test_end();
-}
-
-static void test_murmurhash3_32(void)
-{
- /* murmurhash3_32() produces the same output on both ILP32 and LP64
- systems, so use the same expected outputs for both */
- struct murmur3_test_vectors vectors[] = {
- { "", 0, 0, { 0, }, { 0, } },
- { "", 0, 0x1,
- { 0x51, 0x4E, 0x28, 0xB7, },
- { 0x51, 0x4E, 0x28, 0xB7, } },
- { "", 0, 0xFFFFFFFF,
- { 0x81, 0xF1, 0x6F, 0x39, },
- { 0x81, 0xF1, 0x6F, 0x39, } },
- { "\0\0\0\0", 4, 0,
- { 0x23, 0x62, 0xF9, 0xDE, },
- { 0x23, 0x62, 0xF9, 0xDE, } },
- { "aaaa", 4, 0x9747b28c,
- { 0x5A, 0x97, 0x80, 0x8A, },
- { 0x5A, 0x97, 0x80, 0x8A, } },
- { "aaa", 3, 0x9747b28c,
- { 0x28, 0x3E, 0x01, 0x30, },
- { 0x28, 0x3E, 0x01, 0x30, } },
- { "aa", 2, 0x9747b28c,
- { 0x5D, 0x21, 0x17, 0x26, },
- { 0x5D, 0x21, 0x17, 0x26, } },
- { "a", 1, 0x9747b28c,
- { 0x7F, 0xA0, 0x9E, 0xA6, },
- { 0x7F, 0xA0, 0x9E, 0xA6, } },
- { "abcd", 4, 0x9747b28c,
- { 0xF0, 0x47, 0x86, 0x27, },
- { 0xF0, 0x47, 0x86, 0x27, } },
- { "abc", 3, 0x9747b28c,
- { 0xC8, 0x4A, 0x62, 0xDD, },
- { 0xC8, 0x4A, 0x62, 0xDD, } },
- { "ab", 2, 0x9747b28c,
- { 0x74, 0x87, 0x55, 0x92, },
- { 0x74, 0x87, 0x55, 0x92, } },
- { "Hello, world!", 13, 0x9747b28c,
- { 0x24, 0x88, 0x4C, 0xBA, },
- { 0x24, 0x88, 0x4C, 0xBA, } },
- {
- "\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80",
- 16,
- 0x9747b28c,
- { 0xD5, 0x80, 0x63, 0xC1, },
- { 0xD5, 0x80, 0x63, 0xC1, }
- }, /* 8 U+03C0 (Greek Small Letter Pi) */
- {
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaa",
- 256,
- 0x9747b28c,
- { 0x37, 0x40, 0x5B, 0xDC, },
- { 0x37, 0x40, 0x5B, 0xDC, }
- },
- };
-
- test_murmurhash3_algorithm("murmurhash3_32", murmurhash3_32,
- MURMURHASH3_32_RESULTBYTES,
- vectors, N_ELEMENTS(vectors));
-}
-
-static void test_murmurhash3_128(void)
-{
- /* murmurhash3_128() produces a different output on ILP32 and LP64
- systems (by design). */
- struct murmur3_test_vectors vectors[] = {
- { "", 0, 0x00000000, { 0, }, { 0, }},
- { "", 0, 0x00000001,
- { 0x88, 0xc4, 0xad, 0xec, 0x54, 0xd2, 0x01, 0xb9,
- 0x54, 0xd2, 0x01, 0xb9, 0x54, 0xd2, 0x01, 0xb9 },
- { 0x46, 0x10, 0xab, 0xe5, 0x6e, 0xff, 0x5c, 0xb5,
- 0x51, 0x62, 0x2d, 0xaa, 0x78, 0xf8, 0x35, 0x83 }},
- { "", 0, 0xffffffff,
- { 0x05, 0x1e, 0x08, 0xa9, 0x98, 0x9d, 0x49, 0xf7,
- 0x98, 0x9d, 0x49, 0xf7, 0x98, 0x9d, 0x49, 0xf7 },
- { 0x6a, 0xf1, 0xdf, 0x4d, 0x9d, 0x3b, 0xc9, 0xec,
- 0x85, 0x74, 0x21, 0x12, 0x1e, 0xe6, 0x44, 0x6b }},
- { "\0\0\0\0", 4, 0x00000000,
- { 0xcc, 0x06, 0x6f, 0x1f, 0x9e, 0x51, 0x78, 0x40,
- 0x9e, 0x51, 0x78, 0x40, 0x9e, 0x51, 0x78, 0x40 },
- { 0xcf, 0xa0, 0xf7, 0xdd, 0xd8, 0x4c, 0x76, 0xbc,
- 0x58, 0x96, 0x23, 0x16, 0x1c, 0xf5, 0x26, 0xf1 }},
- { "aaaa", 4, 0x9747b28c,
- { 0x36, 0x80, 0x4c, 0xef, 0x2a, 0x61, 0xc2, 0x24,
- 0x2a, 0x61, 0xc2, 0x24, 0x2a, 0x61, 0xc2, 0x24 },
- { 0xb4, 0xe0, 0xa5, 0xf7, 0x5e, 0x64, 0x9b, 0xf0,
- 0xa5, 0xd3, 0xe8, 0xe9, 0x03, 0x8c, 0x56, 0x9f }},
- { "aaa", 3, 0x9747b28c,
- { 0x83, 0x83, 0x89, 0xbe, 0x9a, 0xad, 0x7f, 0x88,
- 0x9a, 0xad, 0x7f, 0x88, 0x9a, 0xad, 0x7f, 0x88 },
- { 0x8e, 0xa5, 0xe3, 0x7a, 0xe4, 0xc7, 0x46, 0x6b,
- 0xf9, 0x25, 0xbe, 0xf0, 0x35, 0xdc, 0x93, 0x1c }},
- { "aa", 2, 0x9747b28c,
- { 0xdf, 0xbe, 0x4a, 0x86, 0x4a, 0x9c, 0x35, 0x0b,
- 0x4a, 0x9c, 0x35, 0x0b, 0x4a, 0x9c, 0x35, 0x0b },
- { 0x12, 0xa6, 0x98, 0xa9, 0xbe, 0xe5, 0xbb, 0x1f,
- 0xe9, 0x36, 0x30, 0xff, 0x5e, 0x26, 0x94, 0x01 }},
- { "a", 1, 0x9747b28c,
- { 0x08, 0x4e, 0xf9, 0x44, 0x21, 0xa1, 0x18, 0x6e,
- 0x21, 0xa1, 0x18, 0x6e, 0x21, 0xa1, 0x18, 0x6e },
- { 0x5c, 0xe8, 0xd8, 0x51, 0x2d, 0xb2, 0x5a, 0x1d,
- 0x9e, 0x6d, 0xab, 0x0f, 0x92, 0x08, 0xf0, 0x04 }},
- { "abcd", 4, 0x9747b28c,
- { 0x47, 0x95, 0xc5, 0x29, 0xce, 0xc1, 0x88, 0x5e,
- 0xce, 0xc1, 0x88, 0x5e, 0xce, 0xc1, 0x88, 0x5e },
- { 0x49, 0xb4, 0x70, 0x9e, 0xac, 0x55, 0x37, 0x91,
- 0x8a, 0x7e, 0x67, 0xe7, 0xe9, 0xd3, 0xa7, 0xbb }},
- { "abc", 3, 0x9747b28c,
- { 0xd6, 0x35, 0x9e, 0xaf, 0x48, 0xfc, 0x3a, 0xc3,
- 0x48, 0xfc, 0x3a, 0xc3, 0x48, 0xfc, 0x3a, 0xc3 },
- { 0x37, 0x43, 0x63, 0x0d, 0xbf, 0xc3, 0xce, 0xdc,
- 0xcd, 0xe0, 0xa2, 0x34, 0x20, 0xb5, 0x04, 0xbf }},
- { "ab", 2, 0x9747b28c,
- { 0x38, 0x37, 0xd7, 0x95, 0xc7, 0xfe, 0x58, 0x96,
- 0xc7, 0xfe, 0x58, 0x96, 0xc7, 0xfe, 0x58, 0x96 },
- { 0x84, 0x34, 0xee, 0xad, 0x1a, 0x44, 0x28, 0x0b,
- 0x7e, 0xb9, 0x33, 0xe7, 0x63, 0xce, 0x37, 0x2b }},
- { "Hello, world!", 13, 0x9747b28c,
- { 0x75, 0x6d, 0x54, 0x60, 0xbb, 0x87, 0x22, 0x16,
- 0xb7, 0xd4, 0x8b, 0x7c, 0x53, 0xc8, 0xc6, 0x36 },
- { 0xed, 0xc4, 0x85, 0xd6, 0x62, 0xa8, 0x39, 0x2e,
- 0xf8, 0x5e, 0x7e, 0x76, 0x31, 0xd5, 0x76, 0xba }},
- {
- "\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80",
- 16,
- 0x9747b28c,
- { 0xaf, 0x2a, 0xd3, 0x25, 0x3a, 0x74, 0xdf, 0x88,
- 0x38, 0xcc, 0x75, 0x34, 0xf1, 0x97, 0xcc, 0x0d },
- { 0x96, 0xea, 0x5b, 0xd8, 0xc0, 0x36, 0x1a, 0x1f,
- 0xf8, 0xb7, 0x2b, 0xd0, 0x09, 0x4b, 0xe1, 0x7b }
- },
- {
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaa",
- 256,
- 0x9747b28c,
- { 0xd3, 0xf2, 0xb7, 0xbb, 0xf6, 0x66, 0xc0, 0xcc,
- 0xd4, 0xa4, 0x00, 0x60, 0x5e, 0xc8, 0xd3, 0x2a },
- { 0x07, 0xbd, 0x95, 0x7c, 0xa5, 0xde, 0xc1, 0xc4,
- 0xc4, 0xd8, 0xbb, 0x8d, 0x1f, 0x6c, 0xee, 0x55 }
- },
- };
-
- test_murmurhash3_algorithm("murmurhash3_128", murmurhash3_128,
- MURMURHASH3_128_RESULTBYTES,
- vectors, N_ELEMENTS(vectors));
-}
-
-void test_murmurhash3(void)
-{
- test_murmurhash3_32();
- test_murmurhash3_128();
-}
projects / thirdparty / dovecot / core.git / commitdiff
