X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fipxe%2Fsrc%2Ftests%2Fcrc32_test.c;fp=qemu%2Froms%2Fipxe%2Fsrc%2Ftests%2Fcrc32_test.c;h=873f633a5502ac3adde59b65b03d2ca7b78989f3;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/ipxe/src/tests/crc32_test.c b/qemu/roms/ipxe/src/tests/crc32_test.c new file mode 100644 index 000000000..873f633a5 --- /dev/null +++ b/qemu/roms/ipxe/src/tests/crc32_test.c @@ -0,0 +1,116 @@ +/* + * Copyright (C) 2012 Michael Brown . + * + * 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. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** @file + * + * CRC32 tests + * + * + * Test vectors generated using Perl's Digest::CRC: + * + * use Digest::CRC qw ( crc ); + * + * printf "%#08x", crc ( $data, 32, $seed, 0, 1, 0x04c11db7, 1 ); + * + */ + +/* Forcibly enable assertions */ +#undef NDEBUG + +#include +#include +#include + +/** Define inline data */ +#define DATA(...) { __VA_ARGS__ } + +/** A CRC32 test */ +struct crc32_test { + /** Test data */ + const void *data; + /** Length of test data */ + size_t len; + /** Seed */ + uint32_t seed; + /** Expected CRC32 */ + uint32_t crc32; +}; + +/** + * Define a CRC32 test + * + * @v name Test name + * @v DATA Test data + * @v SEED Seed + * @v CRC32 Expected CRC32 + * @ret test CRC32 test + */ +#define CRC32_TEST( name, DATA, SEED, CRC32 ) \ + static const uint8_t name ## _data[] = DATA; \ + static struct crc32_test name = { \ + .data = name ## _data, \ + .len = sizeof ( name ## _data ), \ + .seed = SEED, \ + .crc32 = CRC32, \ + }; + +/** + * Report a CRC32 test result + * + * @v test CRC32 test + */ +#define crc32_ok( test ) do { \ + uint32_t crc32; \ + crc32 = crc32_le ( (test)->seed, (test)->data, (test)->len ); \ + ok ( crc32 == (test)->crc32 ); \ + } while ( 0 ) + +/* CRC32 tests */ +CRC32_TEST ( empty_test, + DATA ( ), + 0x12345678UL, 0x12345678UL ); +CRC32_TEST ( hw_test, + DATA ( 'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd' ), + 0xffffffffUL, 0xf2b5ee7aUL ); +CRC32_TEST ( hw_split_part1_test, + DATA ( 'h', 'e', 'l', 'l', 'o' ), + 0xffffffffUL, 0xc9ef5979UL ); +CRC32_TEST ( hw_split_part2_test, + DATA ( ' ', 'w', 'o', 'r', 'l', 'd' ), + 0xc9ef5979UL, 0xf2b5ee7aUL ); + +/** + * Perform CRC32 self-tests + * + */ +static void crc32_test_exec ( void ) { + + crc32_ok ( &empty_test ); + crc32_ok ( &hw_test ); + crc32_ok ( &hw_split_part1_test ); + crc32_ok ( &hw_split_part2_test ); +} + +/** CRC32 self-test */ +struct self_test crc32_test __self_test = { + .name = "crc32", + .exec = crc32_test_exec, +};