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ccan
Commits
2a9b3284
Commit
2a9b3284
authored
Jun 07, 2009
by
Rusty Russell
Browse files
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Plain Diff
64-bit CRC code.
parent
cd13fd53
Changes
3
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Showing
3 changed files
with
150 additions
and
2 deletions
+150
-2
ccan/crc/crc.c
ccan/crc/crc.c
+115
-0
ccan/crc/crc.h
ccan/crc/crc.h
+22
-1
ccan/crc/test/api.c
ccan/crc/test/api.c
+13
-1
No files found.
ccan/crc/crc.c
View file @
2a9b3284
...
@@ -12,6 +12,17 @@
...
@@ -12,6 +12,17 @@
* Software Foundation; either version 2 of the License, or (at your option)
* Software Foundation; either version 2 of the License, or (at your option)
* any later version. */
* any later version. */
/* crc64 code taken from Jacksum version 1.7.0 - checksum utility in Java
* E-mail: jonelo@jonelo.de
* Copyright (C) 2001-2006 Dipl.-Inf. (FH) Johann Nepomuk Loefflmann,
* All Rights Reserved, http://www.jonelo.de
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*/
#include "crc.h"
#include "crc.h"
#include <stdbool.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdlib.h>
...
@@ -173,3 +184,107 @@ const uint32_t *crc32_ieee_table(void)
...
@@ -173,3 +184,107 @@ const uint32_t *crc32_ieee_table(void)
{
{
return
crc32_ieee_tab
;
return
crc32_ieee_tab
;
}
}
static
uint64_t
crc64_tab
[]
=
{
0x0000000000000000ULL
,
0x01b0000000000000ULL
,
0x0360000000000000ULL
,
0x02d0000000000000ULL
,
0x06c0000000000000ULL
,
0x0770000000000000ULL
,
0x05a0000000000000ULL
,
0x0410000000000000ULL
,
0x0d80000000000000ULL
,
0x0c30000000000000ULL
,
0x0ee0000000000000ULL
,
0x0f50000000000000ULL
,
0x0b40000000000000ULL
,
0x0af0000000000000ULL
,
0x0820000000000000ULL
,
0x0990000000000000ULL
,
0x1b00000000000000ULL
,
0x1ab0000000000000ULL
,
0x1860000000000000ULL
,
0x19d0000000000000ULL
,
0x1dc0000000000000ULL
,
0x1c70000000000000ULL
,
0x1ea0000000000000ULL
,
0x1f10000000000000ULL
,
0x1680000000000000ULL
,
0x1730000000000000ULL
,
0x15e0000000000000ULL
,
0x1450000000000000ULL
,
0x1040000000000000ULL
,
0x11f0000000000000ULL
,
0x1320000000000000ULL
,
0x1290000000000000ULL
,
0x3600000000000000ULL
,
0x37b0000000000000ULL
,
0x3560000000000000ULL
,
0x34d0000000000000ULL
,
0x30c0000000000000ULL
,
0x3170000000000000ULL
,
0x33a0000000000000ULL
,
0x3210000000000000ULL
,
0x3b80000000000000ULL
,
0x3a30000000000000ULL
,
0x38e0000000000000ULL
,
0x3950000000000000ULL
,
0x3d40000000000000ULL
,
0x3cf0000000000000ULL
,
0x3e20000000000000ULL
,
0x3f90000000000000ULL
,
0x2d00000000000000ULL
,
0x2cb0000000000000ULL
,
0x2e60000000000000ULL
,
0x2fd0000000000000ULL
,
0x2bc0000000000000ULL
,
0x2a70000000000000ULL
,
0x28a0000000000000ULL
,
0x2910000000000000ULL
,
0x2080000000000000ULL
,
0x2130000000000000ULL
,
0x23e0000000000000ULL
,
0x2250000000000000ULL
,
0x2640000000000000ULL
,
0x27f0000000000000ULL
,
0x2520000000000000ULL
,
0x2490000000000000ULL
,
0x6c00000000000000ULL
,
0x6db0000000000000ULL
,
0x6f60000000000000ULL
,
0x6ed0000000000000ULL
,
0x6ac0000000000000ULL
,
0x6b70000000000000ULL
,
0x69a0000000000000ULL
,
0x6810000000000000ULL
,
0x6180000000000000ULL
,
0x6030000000000000ULL
,
0x62e0000000000000ULL
,
0x6350000000000000ULL
,
0x6740000000000000ULL
,
0x66f0000000000000ULL
,
0x6420000000000000ULL
,
0x6590000000000000ULL
,
0x7700000000000000ULL
,
0x76b0000000000000ULL
,
0x7460000000000000ULL
,
0x75d0000000000000ULL
,
0x71c0000000000000ULL
,
0x7070000000000000ULL
,
0x72a0000000000000ULL
,
0x7310000000000000ULL
,
0x7a80000000000000ULL
,
0x7b30000000000000ULL
,
0x79e0000000000000ULL
,
0x7850000000000000ULL
,
0x7c40000000000000ULL
,
0x7df0000000000000ULL
,
0x7f20000000000000ULL
,
0x7e90000000000000ULL
,
0x5a00000000000000ULL
,
0x5bb0000000000000ULL
,
0x5960000000000000ULL
,
0x58d0000000000000ULL
,
0x5cc0000000000000ULL
,
0x5d70000000000000ULL
,
0x5fa0000000000000ULL
,
0x5e10000000000000ULL
,
0x5780000000000000ULL
,
0x5630000000000000ULL
,
0x54e0000000000000ULL
,
0x5550000000000000ULL
,
0x5140000000000000ULL
,
0x50f0000000000000ULL
,
0x5220000000000000ULL
,
0x5390000000000000ULL
,
0x4100000000000000ULL
,
0x40b0000000000000ULL
,
0x4260000000000000ULL
,
0x43d0000000000000ULL
,
0x47c0000000000000ULL
,
0x4670000000000000ULL
,
0x44a0000000000000ULL
,
0x4510000000000000ULL
,
0x4c80000000000000ULL
,
0x4d30000000000000ULL
,
0x4fe0000000000000ULL
,
0x4e50000000000000ULL
,
0x4a40000000000000ULL
,
0x4bf0000000000000ULL
,
0x4920000000000000ULL
,
0x4890000000000000ULL
,
0xd800000000000000ULL
,
0xd9b0000000000000ULL
,
0xdb60000000000000ULL
,
0xdad0000000000000ULL
,
0xdec0000000000000ULL
,
0xdf70000000000000ULL
,
0xdda0000000000000ULL
,
0xdc10000000000000ULL
,
0xd580000000000000ULL
,
0xd430000000000000ULL
,
0xd6e0000000000000ULL
,
0xd750000000000000ULL
,
0xd340000000000000ULL
,
0xd2f0000000000000ULL
,
0xd020000000000000ULL
,
0xd190000000000000ULL
,
0xc300000000000000ULL
,
0xc2b0000000000000ULL
,
0xc060000000000000ULL
,
0xc1d0000000000000ULL
,
0xc5c0000000000000ULL
,
0xc470000000000000ULL
,
0xc6a0000000000000ULL
,
0xc710000000000000ULL
,
0xce80000000000000ULL
,
0xcf30000000000000ULL
,
0xcde0000000000000ULL
,
0xcc50000000000000ULL
,
0xc840000000000000ULL
,
0xc9f0000000000000ULL
,
0xcb20000000000000ULL
,
0xca90000000000000ULL
,
0xee00000000000000ULL
,
0xefb0000000000000ULL
,
0xed60000000000000ULL
,
0xecd0000000000000ULL
,
0xe8c0000000000000ULL
,
0xe970000000000000ULL
,
0xeba0000000000000ULL
,
0xea10000000000000ULL
,
0xe380000000000000ULL
,
0xe230000000000000ULL
,
0xe0e0000000000000ULL
,
0xe150000000000000ULL
,
0xe540000000000000ULL
,
0xe4f0000000000000ULL
,
0xe620000000000000ULL
,
0xe790000000000000ULL
,
0xf500000000000000ULL
,
0xf4b0000000000000ULL
,
0xf660000000000000ULL
,
0xf7d0000000000000ULL
,
0xf3c0000000000000ULL
,
0xf270000000000000ULL
,
0xf0a0000000000000ULL
,
0xf110000000000000ULL
,
0xf880000000000000ULL
,
0xf930000000000000ULL
,
0xfbe0000000000000ULL
,
0xfa50000000000000ULL
,
0xfe40000000000000ULL
,
0xfff0000000000000ULL
,
0xfd20000000000000ULL
,
0xfc90000000000000ULL
,
0xb400000000000000ULL
,
0xb5b0000000000000ULL
,
0xb760000000000000ULL
,
0xb6d0000000000000ULL
,
0xb2c0000000000000ULL
,
0xb370000000000000ULL
,
0xb1a0000000000000ULL
,
0xb010000000000000ULL
,
0xb980000000000000ULL
,
0xb830000000000000ULL
,
0xbae0000000000000ULL
,
0xbb50000000000000ULL
,
0xbf40000000000000ULL
,
0xbef0000000000000ULL
,
0xbc20000000000000ULL
,
0xbd90000000000000ULL
,
0xaf00000000000000ULL
,
0xaeb0000000000000ULL
,
0xac60000000000000ULL
,
0xadd0000000000000ULL
,
0xa9c0000000000000ULL
,
0xa870000000000000ULL
,
0xaaa0000000000000ULL
,
0xab10000000000000ULL
,
0xa280000000000000ULL
,
0xa330000000000000ULL
,
0xa1e0000000000000ULL
,
0xa050000000000000ULL
,
0xa440000000000000ULL
,
0xa5f0000000000000ULL
,
0xa720000000000000ULL
,
0xa690000000000000ULL
,
0x8200000000000000ULL
,
0x83b0000000000000ULL
,
0x8160000000000000ULL
,
0x80d0000000000000ULL
,
0x84c0000000000000ULL
,
0x8570000000000000ULL
,
0x87a0000000000000ULL
,
0x8610000000000000ULL
,
0x8f80000000000000ULL
,
0x8e30000000000000ULL
,
0x8ce0000000000000ULL
,
0x8d50000000000000ULL
,
0x8940000000000000ULL
,
0x88f0000000000000ULL
,
0x8a20000000000000ULL
,
0x8b90000000000000ULL
,
0x9900000000000000ULL
,
0x98b0000000000000ULL
,
0x9a60000000000000ULL
,
0x9bd0000000000000ULL
,
0x9fc0000000000000ULL
,
0x9e70000000000000ULL
,
0x9ca0000000000000ULL
,
0x9d10000000000000ULL
,
0x9480000000000000ULL
,
0x9530000000000000ULL
,
0x97e0000000000000ULL
,
0x9650000000000000ULL
,
0x9240000000000000ULL
,
0x93f0000000000000ULL
,
0x9120000000000000ULL
,
0x9090000000000000ULL
};
uint64_t
crc64_iso
(
uint64_t
crc
,
const
void
*
buf
,
size_t
size
)
{
const
uint8_t
*
p
=
buf
;
while
(
size
--
)
crc
=
crc64_tab
[(
crc
^
*
p
++
)
&
0xFFL
]
^
(
crc
>>
8
);
return
crc
;
}
const
uint64_t
*
crc64_iso_table
(
void
)
{
return
crc64_tab
;
}
ccan/crc/crc.h
View file @
2a9b3284
...
@@ -55,7 +55,7 @@ uint32_t crc32c(uint32_t start_crc, const void *buf, size_t size);
...
@@ -55,7 +55,7 @@ uint32_t crc32c(uint32_t start_crc, const void *buf, size_t size);
* void check_user_crc_table(const uint32_t *usertab)
* void check_user_crc_table(const uint32_t *usertab)
* {
* {
* const uint32_t *ctab = crc32c_table();
* const uint32_t *ctab = crc32c_table();
* if (!
ieee_tab || memcmp(ieee_
tab, usertab, 1024) != 0)
* if (!
ctab || memcmp(c
tab, usertab, 1024) != 0)
* abort();
* abort();
* }
* }
*/
*/
...
@@ -80,4 +80,25 @@ uint32_t crc32_ieee(uint32_t start_crc, const void *buf, size_t size);
...
@@ -80,4 +80,25 @@ uint32_t crc32_ieee(uint32_t start_crc, const void *buf, size_t size);
* See crc32c_table() for details.
* See crc32c_table() for details.
*/
*/
const
uint32_t
*
crc32_ieee_table
(
void
);
const
uint32_t
*
crc32_ieee_table
(
void
);
/**
* crc64_iso - ISO 3309
* @start_crc: the initial crc (usually 0)
* @buf: pointer to bytes
* @size: length of buffer
*
* 64 bit CRC checksum using polynomial
* X^64 + X^4 + X^3 + X^1 + X^0
*
* See crc32c() for details.
*/
uint64_t
crc64_iso
(
uint64_t
start_crc
,
const
void
*
buf
,
size_t
size
);
/**
* crc64_iso_table - Get the ISO 3309 CRC table
*
* See crc32c_table() for details.
*/
const
uint64_t
*
crc64_iso_table
(
void
);
#endif
/* CCAN_CRC_H */
#endif
/* CCAN_CRC_H */
ccan/crc/test/api.c
View file @
2a9b3284
...
@@ -238,12 +238,24 @@ static void test_crc32(uint32_t (*crc)(uint32_t, const void *, size_t),
...
@@ -238,12 +238,24 @@ static void test_crc32(uint32_t (*crc)(uint32_t, const void *, size_t),
ok1
(
memcmp
(
crc_table
(),
table_expect
,
1024
)
==
0
);
ok1
(
memcmp
(
crc_table
(),
table_expect
,
1024
)
==
0
);
}
}
static
void
test_crc64
(
void
)
{
/* according to http://swissknife.sourceforge.net/CRC64.html */
ok1
(
crc64_iso
(
0
,
"IHATEMATH"
,
strlen
(
"IHATEMATH"
))
==
0xE3DCADD69B01ADD1ULL
);
/* according to the CRC64 poly, http://sf.net/projects/jcrcgen */
ok1
(
crc64_iso
(
0
,
"123456789"
,
strlen
(
"123456789"
))
==
0x46A5A9388A5BEFFEULL
);
}
int
main
(
int
argc
,
char
*
argv
[])
int
main
(
int
argc
,
char
*
argv
[])
{
{
plan_tests
(
517
*
2
);
plan_tests
(
517
*
2
+
2
);
test_crc32
(
crc32c
,
crc32c_table
,
test_crc32
(
crc32c
,
crc32c_table
,
crcc_zero_expect
,
crcc_expect
,
crc32c_tab
);
crcc_zero_expect
,
crcc_expect
,
crc32c_tab
);
test_crc32
(
crc32_ieee
,
crc32_ieee_table
,
test_crc32
(
crc32_ieee
,
crc32_ieee_table
,
crc_ieee_zero_expect
,
crc_ieee_expect
,
crc32_ieee_tab
);
crc_ieee_zero_expect
,
crc_ieee_expect
,
crc32_ieee_tab
);
test_crc64
();
return
exit_status
();
return
exit_status
();
}
}
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