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153 lines
4.3 KiB
153 lines
4.3 KiB
/*
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* Unit tests for JS normalizer.
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*
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* Copyright (C) 2008 Sourcefire, Inc.
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*
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* Authors: aCaB <acab@clamav.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#if HAVE_CONFIG_H
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#include "clamav-config.h"
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#endif
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#include <stdio.h>
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#include <check.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/stat.h>
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#include "../libclamav/clamav.h"
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#include "../libclamav/others.h"
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#include "../libclamav/disasm.h"
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#include "checks.h"
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START_TEST (test_disasm_basic) {
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char file[]="disasmXXXXXX";
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int fd = mkstemp(file), ref;
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uint8_t buf[] = {
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/* m00/rm000 - add [eax], al */
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0x00, 0x00,
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/* m00/rm011 - add [ebx], edi */
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0x01, 0x3b,
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/* m00/rm100/ss00/idx010/b100 - or [edx*1+esp], dh */
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0x08, 0x34, 0x14,
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/* m00/rm100/ss00/idx100/b001 - or [0*1+ecx], edi */
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0x09, 0x3c, 0x21,
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/* m00/rm100/ss00/idx010/b101 - adc [edx*1+0x42614361], ah */
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0x10, 0x24, 0x15, 0x61, 0x43, 0x61, 0x42,
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/* m00/rm100/ss10/idx111/b110 - adc [edi*4+esi], ecx */
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0x11, 0x0c, 0xbe,
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/* m00/rm101 - sbb [0xaaccaabb], dl */
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0x18, 0x15, 0xbb, 0xaa, 0xcc, 0xaa,
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/* m01/rm001 - sbb [ecx+0xffffffff], esp */
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0x19, 0x61, 0xff,
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/* m10/rm100/ss01/idx110/b010 - and [esi*2+edx+0x0b0a0c0a], ch */
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0x20, 0xac, 0x72, 0x0a, 0x0c, 0x0a, 0x0b,
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/* m10/rm100/ss11/idx011/b101 - and [eax*8+ebp+0xabacabac], ebx */
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0x21, 0x9c, 0xc5, 0xac, 0xab, 0xac, 0xab,
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/* m11/rm100 - sub ah, dh */
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0x28, 0xf4,
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/* m11/rm101 - sub ebp, edx */
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0x29, 0xd5,
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/* addrsize, m00/rm110 - mov [eax-5355], ebp */
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0x67, 0x01, 0x2e, 0xab, 0xac,
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/* add al, 17 */
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0x04, 0x17,
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/* pop es */
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0x07,
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/* push cs */
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0x0e,
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/* adc eax, 0x37333331 */
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0x15, 0x31, 0x33, 0x33, 0x37,
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/* inc esi */
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0x46,
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/* jnc +0x31 */
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0x73, 0x31,
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/* pop [edx] */
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0x8f, 0x02,
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/* nop */
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0x90,
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/* call far 1122:33445566 */
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0x9a, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11,
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/* mov [11223344], eax */
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0xa2, 0x44, 0x33, 0x22, 0x11,
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/* enter 1122, 33 */
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0xc8, 0x22, 0x11, 0x33,
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/* rcl [ecx], 1 */
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0xd0, 0x11,
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/* sar al, cl */
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0xd2, 0xf8,
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/* push fs */
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0x0f, 0xa0,
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/* mov edx, 12345678 */
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0xba, 0x78, 0x56, 0x34, 0x12,
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/* jmp $ */
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0xe9, 0xfb, 0xff, 0xff, 0xff,
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/* mov eax, cr2 */
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0x0f, 0x20, 0xd0,
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/* mov cr7, edx */
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0x0f, 0x22, 0xda,
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/* mov ecx, dr0 */
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0x0f, 0x21, 0xc1,
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/* mov dr3, ebx */
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0x0f, 0x23, 0xdb,
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/* mov ax, ss */
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0x66, 0x8c, 0xd0,
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/* mov eax, [deadbeef] */
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0xa1, 0xef, 0xbe, 0xad, 0xde,
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/* ficom dword ptr [esi*8+ebx+7f] */
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0xda, 0x54, 0xf3, 0x7f,
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/* fmulp st(3), st(0) */
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0xde, 0xcb,
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};
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uint8_t *d;
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off_t size;
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struct stat st;
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fail_unless(fd!=-1, "mkstemp failed");
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ref = open_testfile("input/disasmref.bin");
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fail_unless(fstat(ref, &st)!=-1, "fstat failed");
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disasmbuf(buf, sizeof(buf), fd);
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size = lseek(fd, 0, SEEK_CUR);
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fail_unless_fmt(size==st.st_size, "disasm size mismatch(value %u, expected: %u)", size, st.st_size);
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lseek(fd, 0, SEEK_SET);
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d=malloc(size*2);
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fail_unless_fmt(d!=NULL, "disasm malloc(%u) failed", size);
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fail_unless(read(ref, d, size)==size, "disasm reference read failed");
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fail_unless(read(fd, d+size, size)==size, "disasm read failed");
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close(fd);
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close(ref);
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fail_unless(!memcmp(d, d+size, size), "disasm data doesn't match the reference");
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free(d);
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unlink(file);
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}
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END_TEST
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Suite *test_disasm_suite(void)
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{
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Suite *s = suite_create("disasm");
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TCase *tc_disasm;
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tc_disasm = tcase_create("disasm");
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suite_add_tcase (s, tc_disasm);
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tcase_add_test(tc_disasm, test_disasm_basic);
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return s;
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}
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