diff options
Diffstat (limited to 'qemu/roms/ipxe/src/tests/deflate_test.c')
| -rw-r--r-- | qemu/roms/ipxe/src/tests/deflate_test.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/tests/deflate_test.c b/qemu/roms/ipxe/src/tests/deflate_test.c new file mode 100644 index 000000000..68c1aad96 --- /dev/null +++ b/qemu/roms/ipxe/src/tests/deflate_test.c @@ -0,0 +1,246 @@ +/* + * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>. + * + * 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 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 + * + * DEFLATE tests + * + */ + +/* Forcibly enable assertions */ +#undef NDEBUG + +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <ipxe/deflate.h> +#include <ipxe/test.h> + +/** A DEFLATE test */ +struct deflate_test { + /** Compression format */ + enum deflate_format format; + /** Compressed data */ + const void *compressed; + /** Length of compressed data */ + size_t compressed_len; + /** Expected uncompressed data */ + const void *expected; + /** Length of expected uncompressed data */ + size_t expected_len; +}; + +/** A DEFLATE fragment list */ +struct deflate_test_fragments { + /** Fragment lengths */ + size_t len[8]; +}; + +/** Define inline data */ +#define DATA(...) { __VA_ARGS__ } + +/** Define a DEFLATE test */ +#define DEFLATE( name, FORMAT, COMPRESSED, EXPECTED ) \ + static const uint8_t name ## _compressed[] = COMPRESSED; \ + static const uint8_t name ## _expected[] = EXPECTED; \ + static struct deflate_test name = { \ + .format = FORMAT, \ + .compressed = name ## _compressed, \ + .compressed_len = sizeof ( name ## _compressed ), \ + .expected = name ## _expected, \ + .expected_len = sizeof ( name ## _expected ), \ + }; + +/* Empty file, no compression */ +DEFLATE ( empty_literal, DEFLATE_RAW, + DATA ( 0x01, 0x00, 0x00, 0xff, 0xff ), DATA() ); + +/* "iPXE" string, no compression */ +DEFLATE ( literal, DEFLATE_RAW, + DATA ( 0x01, 0x04, 0x00, 0xfb, 0xff, 0x69, 0x50, 0x58, 0x45 ), + DATA ( 0x69, 0x50, 0x58, 0x45 ) ); + +/* "iPXE" string, no compression, split into two literals */ +DEFLATE ( split_literal, DEFLATE_RAW, + DATA ( 0x00, 0x02, 0x00, 0xfd, 0xff, 0x69, 0x50, 0x01, 0x02, 0x00, + 0xfd, 0xff, 0x58, 0x45 ), + DATA ( 0x69, 0x50, 0x58, 0x45 ) ); + +/* Empty file */ +DEFLATE ( empty, DEFLATE_RAW, DATA ( 0x03, 0x00 ), DATA() ); + +/* "Hello world" */ +DEFLATE ( hello_world, DEFLATE_RAW, + DATA ( 0xf3, 0x48, 0xcd, 0xc9, 0xc9, 0x57, 0x28, 0xcf, 0x2f, 0xca, + 0x49, 0x01, 0x00 ), + DATA ( 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f, 0x72, 0x6c, + 0x64 ) ); + +/* "Hello hello world" */ +DEFLATE ( hello_hello_world, DEFLATE_RAW, + DATA ( 0xf3, 0x48, 0xcd, 0xc9, 0xc9, 0x57, 0xc8, 0x00, 0x93, 0xe5, + 0xf9, 0x45, 0x39, 0x29, 0x00 ), + DATA ( 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x68, 0x65, 0x6c, 0x6c, + 0x6f, 0x20, 0x77, 0x6f, 0x72, 0x6c, 0x64 ) ); + +/* "This specification defines a lossless compressed data format" */ +DEFLATE ( rfc_sentence, DEFLATE_RAW, + DATA ( 0x0d, 0xc6, 0xdb, 0x09, 0x00, 0x21, 0x0c, 0x04, 0xc0, 0x56, + 0xb6, 0x28, 0x1b, 0x08, 0x79, 0x70, 0x01, 0x35, 0xe2, 0xa6, + 0x7f, 0xce, 0xf9, 0x9a, 0xf1, 0x25, 0xc1, 0xe3, 0x9a, 0x91, + 0x2a, 0x9d, 0xb5, 0x61, 0x1e, 0xb9, 0x9d, 0x10, 0xcc, 0x22, + 0xa7, 0x93, 0xd0, 0x5a, 0xe7, 0xbe, 0xb8, 0xc1, 0xa4, 0x05, + 0x51, 0x77, 0x49, 0xff ), + DATA ( 0x54, 0x68, 0x69, 0x73, 0x20, 0x73, 0x70, 0x65, 0x63, 0x69, + 0x66, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x64, + 0x65, 0x66, 0x69, 0x6e, 0x65, 0x73, 0x20, 0x61, 0x20, 0x6c, + 0x6f, 0x73, 0x73, 0x6c, 0x65, 0x73, 0x73, 0x20, 0x63, 0x6f, + 0x6d, 0x70, 0x72, 0x65, 0x73, 0x73, 0x65, 0x64, 0x20, 0x64, + 0x61, 0x74, 0x61, 0x20, 0x66, 0x6f, 0x72, 0x6d, 0x61, 0x74 ) ); + +/* "ZLIB Compressed Data Format Specification" */ +DEFLATE ( zlib, DEFLATE_ZLIB, + DATA ( 0x78, 0x01, 0x8b, 0xf2, 0xf1, 0x74, 0x52, 0x70, 0xce, 0xcf, + 0x2d, 0x28, 0x4a, 0x2d, 0x2e, 0x4e, 0x4d, 0x51, 0x70, 0x49, + 0x2c, 0x49, 0x54, 0x70, 0xcb, 0x2f, 0xca, 0x4d, 0x2c, 0x51, + 0x08, 0x2e, 0x48, 0x4d, 0xce, 0x4c, 0xcb, 0x4c, 0x4e, 0x2c, + 0xc9, 0xcc, 0xcf, 0x03, 0x00, 0x2c, 0x0e, 0x0e, 0xeb ), + DATA ( 0x5a, 0x4c, 0x49, 0x42, 0x20, 0x43, 0x6f, 0x6d, 0x70, 0x72, + 0x65, 0x73, 0x73, 0x65, 0x64, 0x20, 0x44, 0x61, 0x74, 0x61, + 0x20, 0x46, 0x6f, 0x72, 0x6d, 0x61, 0x74, 0x20, 0x53, 0x70, + 0x65, 0x63, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, + 0x6e ) ); + +/* "ZLIB Compressed Data Format Specification" fragment list */ +static struct deflate_test_fragments zlib_fragments[] = { + { { -1UL, } }, + { { 0, 1, 5, -1UL, } }, + { { 0, 0, 1, 0, 0, 1, -1UL } }, + { { 10, 8, 4, 7, 11, -1UL } }, + { { 45, -1UL } }, + { { 48, -1UL } }, +}; + +/** + * Report DEFLATE test result + * + * @v deflate Decompressor + * @v test Deflate test + * @v frags Fragment list, or NULL + * @v file Test code file + * @v line Test code line + */ +static void deflate_okx ( struct deflate *deflate, + struct deflate_test *test, + struct deflate_test_fragments *frags, + const char *file, unsigned int line ) { + uint8_t data[ test->expected_len ]; + struct deflate_chunk in; + struct deflate_chunk out; + size_t frag_len = -1UL; + size_t offset = 0; + size_t remaining = test->compressed_len; + unsigned int i; + + /* Initialise decompressor */ + deflate_init ( deflate, test->format ); + + /* Initialise output chunk */ + deflate_chunk_init ( &out, virt_to_user ( data ), 0, sizeof ( data ) ); + + /* Process input (in fragments, if applicable) */ + for ( i = 0 ; i < ( sizeof ( frags->len ) / + sizeof ( frags->len[0] ) ) ; i++ ) { + + /* Initialise input chunk */ + if ( frags ) + frag_len = frags->len[i]; + if ( frag_len > remaining ) + frag_len = remaining; + deflate_chunk_init ( &in, virt_to_user ( test->compressed ), + offset, ( offset + frag_len ) ); + + /* Decompress this fragment */ + okx ( deflate_inflate ( deflate, &in, &out ) == 0, file, line ); + okx ( in.len == ( offset + frag_len ), file, line ); + okx ( in.offset == in.len, file, line ); + + /* Move to next fragment */ + offset = in.offset; + remaining -= frag_len; + if ( ! remaining ) + break; + + /* Check that decompression has not terminated early */ + okx ( ! deflate_finished ( deflate ), file, line ); + } + + /* Check decompression has terminated as expected */ + okx ( deflate_finished ( deflate ), file, line ); + okx ( offset == test->compressed_len, file, line ); + okx ( out.offset == test->expected_len, file, line ); + okx ( memcmp ( data, test->expected, test->expected_len ) == 0, + file, line ); +} +#define deflate_ok( deflate, test, frags ) \ + deflate_okx ( deflate, test, frags, __FILE__, __LINE__ ) + +/** + * Perform DEFLATE self-test + * + */ +static void deflate_test_exec ( void ) { + struct deflate *deflate; + unsigned int i; + + /* Allocate shared structure */ + deflate = malloc ( sizeof ( *deflate ) ); + ok ( deflate != NULL ); + + /* Perform self-tests */ + if ( deflate ) { + + /* Test as a single pass */ + deflate_ok ( deflate, &empty_literal, NULL ); + deflate_ok ( deflate, &literal, NULL ); + deflate_ok ( deflate, &split_literal, NULL ); + deflate_ok ( deflate, &empty, NULL ); + deflate_ok ( deflate, &hello_world, NULL ); + deflate_ok ( deflate, &hello_hello_world, NULL ); + deflate_ok ( deflate, &rfc_sentence, NULL ); + deflate_ok ( deflate, &zlib, NULL ); + + /* Test fragmentation */ + for ( i = 0 ; i < ( sizeof ( zlib_fragments ) / + sizeof ( zlib_fragments[0] ) ) ; i++ ) { + deflate_ok ( deflate, &zlib, &zlib_fragments[i] ); + } + } + + /* Free shared structure */ + free ( deflate ); +} + +/** DEFLATE self-test */ +struct self_test deflate_test __self_test = { + .name = "deflate", + .exec = deflate_test_exec, +}; |