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clamav/unit_tests/check_matchers.c
Micah Snyder (micasnyd) 9e20cdf6ea Add CMake build tooling 
This patch adds experimental-quality CMake build tooling.

The libmspack build required a modification to use "" instead of <> for
header #includes. This will hopefully be included in the libmspack
upstream project when adding CMake build tooling to libmspack.

Removed use of libltdl when using CMake.

Flex & Bison are now required to build.

If -DMAINTAINER_MODE, then GPERF is also required, though it currently
doesn't actually do anything.  TODO!

I found that the autotools build system was generating the lexer output
but not actually compiling it, instead using previously generated (and
manually renamed) lexer c source. As a consequence, changes to the .l
and .y files weren't making it into the build. To resolve this, I
removed generated flex/bison files and fixed the tooling to use the
freshly generated files. Flex and bison are now required build tools.
On Windows, this adds a dependency on the winflexbison package,
which can be obtained using Chocolatey or may be manually installed.

CMake tooling only has partial support for building with external LLVM
library, and no support for the internal LLVM (to be removed in the
future). I.e. The CMake build currently only supports the bytecode
interpreter.

Many files used include paths relative to the top source directory or
relative to the current project, rather than relative to each build
target. Modern CMake support requires including internal dependency
headers the same way you would external dependency headers (albeit
with "" instead of <>). This meant correcting all header includes to
be relative to the build targets and not relative to the workspace.

For example, ...

```c
include "../libclamav/clamav.h"
include "clamd/clamd_others.h"
```

... becomes:

```c
// libclamav
include "clamav.h"

// clamd
include "clamd_others.h"
```

Fixes header name conflicts by renaming a few of the files.

Converted the "shared" code into a static library, which depends on
libclamav. The ironically named "shared" static library provides
features common to the ClamAV apps which are not required in
libclamav itself and are not intended for use by downstream projects.
This change was required for correct modern CMake practices but was
also required to use the automake "subdir-objects" option.
This eliminates warnings when running autoreconf which, in the next
version of autoconf & automake are likely to break the build.

libclamav used to build in multiple stages where an earlier stage is
a static library containing utils required by the "shared" code.
Linking clamdscan and clamdtop with this libclamav utils static lib
allowed these two apps to function without libclamav. While this is
nice in theory, the practical gains are minimal and it complicates
the build system. As such, the autotools and CMake tooling was
simplified for improved maintainability and this feature was thrown
out. clamdtop and clamdscan now require libclamav to function.

Removed the nopthreads version of the autotools
libclamav_internal_utils static library and added pthread linking to
a couple apps that may have issues building on some platforms without
it, with the intention of removing needless complexity from the
source. Kept the regular version of libclamav_internal_utils.la
though it is no longer used anywhere but in libclamav.

Added an experimental doxygen build option which attempts to build
clamav.h and libfreshclam doxygen html docs.

The CMake build tooling also may build the example program(s), which
isn't a feature in the Autotools build system.

Changed C standard to C90+ due to inline linking issues with socket.h
when linking libfreshclam.so on Linux.

Generate common.rc for win32.

Fix tabs/spaces in shared Makefile.am, and remove vestigial ifndef
from misc.c.

Add CMake files to the automake dist, so users can try the new
CMake tooling w/out having to build from a git clone.

clamonacc changes:
- Renamed FANOTIFY macro to HAVE_SYS_FANOTIFY_H to better match other
  similar macros.
- Added a new clamav-clamonacc.service systemd unit file, based on
  the work of ChadDevOps & Aaron Brighton.
- Added missing clamonacc man page.

Updates to clamdscan man page, add missing options.

Remove vestigial CL_NOLIBCLAMAV definitions (all apps now use
libclamav).

Rename Windows mspack.dll to libmspack.dll so all ClamAV-built
libraries have the lib-prefix with Visual Studio as with CMake.
2020-08-13 00:25:34 -07:00

558 lines
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/*
* Copyright (C) 2013-2020 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
* Copyright (C) 2008-2013 Sourcefire, Inc.
*
* Authors: Tomasz Kojm
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*/
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#include <check.h>
#include <stdio.h>
#include <string.h>
// libclamav
#include "clamav.h"
#include "readdb.h"
#include "matcher.h"
#include "matcher-ac.h"
#include "matcher-bm.h"
#include "matcher-pcre.h"
#include "others.h"
#include "default.h"
#include "checks.h"
static const struct ac_testdata_s {
const char *data;
const char *hexsig;
const char *virname;
} ac_testdata[] = {
/* IMPORTANT: ac_testdata[i].hexsig should only match ac_testdata[i].data */
{"daaaaaaaaddbbbbbcce", "64[4-4]61616161{2}6262[3-6]65", "Test_1: anchored and ranged wildcard"},
{"ebbbbbbbbeecccccddf", "6262(6162|6364|6265|6465){2}6363", "Test_2: multi-byte fixed alternate w/ ranged wild"},
{"aaaabbbbcccccdddddeeee", "616161*63636363*6565", "Test_3: unbounded wildcards"},
{"oprstuwxy", "6f??727374????7879", "Test_4: nibble wildcards"},
{"abdcabcddabccadbbdbacb", "6463{2-3}64646162(63|64|65)6361*6462????6261{-1}6362", "Test_5: various wildcard combinations w/ alternate"},
{"abcdefghijkabcdefghijk", "62????65666768*696a6b6162{2-3}656667[1-3]6b", "Test_6: various wildcard combinations"},
{"abcadbabcadbabcacb", "6?6164?26?62{3}?26162?361", "Test_7: nibble and ranged wildcards"},
/* testcase for filter bug: it was checking only first 32 chars, and last
* maxpatlen */
{"\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1dddddddddddddddddddd5\1\1\1\1\1\1\1\1\1\1\1\1\1", "6464646464646464646464646464646464646464(35|36)", "Test_8: filter bug"},
/* altbyte */
{"aabaa", "6161(62|63|64)6161", "Ac_Altstr_Test_1"}, /* control */
{"aacaa", "6161(62|63|64)6161", "Ac_Altstr_Test_1"}, /* control */
{"aadaa", "6161(62|63|64)6161", "Ac_Altstr_Test_1"}, /* control */
/* alt-fstr */
{"aabbbaa", "6161(626262|636363|646464)6161", "Ac_Altstr_Test_2"}, /* control */
{"aacccaa", "6161(626262|636363|646464)6161", "Ac_Altstr_Test_2"}, /* control */
{"aadddaa", "6161(626262|636363|646464)6161", "Ac_Altstr_Test_2"}, /* control */
/* alt-vstr */
{"aabbaa", "6161(6262|63636363|6464646464)6161", "Ac_Altstr_Test_3"}, /* control */
{"aaccccaa", "6161(6262|63636363|6464646464)6161", "Ac_Altstr_Test_3"}, /* control */
{"aadddddaa", "6161(6262|63636363|6464646464)6161", "Ac_Altstr_Test_3"}, /* control */
/* alt-embed */
{"aajjaa", "6161(6a6a|66(6767|6868)66|6969)6161", "Ac_Altstr_Test_4"}, /* control */
{"aafggfaa", "6161(6a6a|66(6767|6868)66|6969)6161", "Ac_Altstr_Test_4"}, /* control */
{"aafhhfaa", "6161(6a6a|66(6767|6868)66|6969)6161", "Ac_Altstr_Test_4"}, /* control */
{"aaiiaa", "6161(6a6a|66(6767|6868)66|6969)6161", "Ac_Altstr_Test_4"}, /* control */
{NULL, NULL, NULL}};
static const struct ac_sigopts_testdata_s {
const char *data;
uint32_t dlength;
const char *hexsig;
const char *offset;
const uint16_t sigopts;
const char *virname;
const uint8_t expected_result;
} ac_sigopts_testdata[] = {
/* nocase */
{"aaaaa", 5, "6161616161", "*", ACPATT_OPTION_NOOPTS, "AC_Sigopts_Test_1", CL_VIRUS}, /* control */
{"bBbBb", 5, "6262626262", "*", ACPATT_OPTION_NOOPTS, "AC_Sigopts_Test_2", CL_CLEAN}, /* nocase control */
{"cCcCc", 5, "6363636363", "*", ACPATT_OPTION_NOCASE, "AC_Sigopts_Test_3", CL_VIRUS}, /* nocase test */
/* fullword */
{"ddddd&e", 7, "6464646464", "*", ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_4", CL_VIRUS}, /* fullword start */
{"s&eeeee&e", 9, "6565656565", "*", ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_5", CL_VIRUS}, /* fullword middle */
{"s&fffff", 7, "6666666666", "*", ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_6", CL_VIRUS}, /* fullword end */
{"sggggg", 6, "6767676767", "*", ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_7", CL_CLEAN}, /* fullword fail start */
{"hhhhhe", 6, "6868686868", "*", ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_8", CL_CLEAN}, /* fullword fail end */
{"iiiii", 5, "(W)6969696969", "*", ACPATT_OPTION_NOOPTS, "AC_Sigopts_Test_9", CL_VIRUS}, /* fullword class start */
{"jjj&jj", 6, "6a6a6a(W)6a6a", "*", ACPATT_OPTION_NOOPTS, "AC_Sigopts_Test_10", CL_VIRUS}, /* fullword class middle */
{"kkkkk", 5, "6b6b6b6b6b(W)", "*", ACPATT_OPTION_NOOPTS, "AC_Sigopts_Test_11", CL_VIRUS}, /* fullword class end */
{"slllll", 6, "(W)6c6c6c6c6c", "*", ACPATT_OPTION_NOOPTS, "AC_Sigopts_Test_12", CL_CLEAN}, /* fullword fail start */
{"mmmmme", 6, "6d6d6d6d6d(W)", "*", ACPATT_OPTION_NOOPTS, "AC_Sigopts_Test_13", CL_CLEAN}, /* fullword class end */
{"nNnNn", 5, "6e6e6e6e6e", "*", ACPATT_OPTION_NOCASE | ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_14", CL_VIRUS}, /* nocase fullword */
{"soOoOo", 6, "6f6f6f6f6f", "*", ACPATT_OPTION_NOCASE | ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_15", CL_CLEAN}, /* nocase fullword start fail */
{"pPpPpe", 6, "7070707070", "*", ACPATT_OPTION_NOCASE | ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_16", CL_CLEAN}, /* nocase fullword end fail */
/* wide */
{"q\0q\0q\0q\0q\0", 10, "7171717171", "*", ACPATT_OPTION_WIDE, "AC_Sigopts_Test_17", CL_VIRUS}, /* control */
{"r\0R\0r\0R\0r\0", 10, "7272727272", "*", ACPATT_OPTION_WIDE | ACPATT_OPTION_NOCASE, "AC_Sigopts_Test_18", CL_VIRUS}, /* control */
{"s\0s\0s\0s\0s\0", 10, "7373737373", "*", ACPATT_OPTION_WIDE | ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_19", CL_VIRUS}, /* control */
{"t\0t\0t\0t\0t\0", 10, "7474747474", "*", ACPATT_OPTION_WIDE | ACPATT_OPTION_ASCII, "AC_Sigopts_Test_20", CL_VIRUS}, /* control */
{"u\0u\0u\0u\0u\0", 10, "7575757575", "*", ACPATT_OPTION_WIDE | ACPATT_OPTION_NOCASE | ACPATT_OPTION_FULLWORD, "AC_Sigopts_Test_21", CL_VIRUS}, /* control */
{"v\0v\0v\0v\0v\0", 10, "7676767676", "*", ACPATT_OPTION_WIDE | ACPATT_OPTION_NOCASE | ACPATT_OPTION_ASCII, "AC_Sigopts_Test_22", CL_VIRUS}, /* control */
{"w\0w\0w\0w\0w\0", 10, "7777777777", "*", ACPATT_OPTION_WIDE | ACPATT_OPTION_FULLWORD | ACPATT_OPTION_ASCII, "AC_Sigopts_Test_23", CL_VIRUS}, /* control */
{"x\0x\0x\0x\0x\0", 10, "7878787878", "*", ACPATT_OPTION_WIDE | ACPATT_OPTION_NOCASE | ACPATT_OPTION_FULLWORD | ACPATT_OPTION_ASCII, "AC_Sigopts_Test_24", CL_VIRUS}, /* control */
{NULL, 0, NULL, NULL, ACPATT_OPTION_NOOPTS, NULL, CL_CLEAN}};
#if HAVE_PCRE
static const struct pcre_testdata_s {
const char *data;
const char *hexsig;
const char *offset;
const uint16_t sigopts;
const char *virname;
const uint8_t expected_result;
} pcre_testdata[] = {
{"clamav", "/clamav/", "*", ACPATT_OPTION_NOOPTS, "Test_1: simple string", CL_VIRUS},
{"cla:mav", "/cla:mav/", "*", ACPATT_OPTION_NOOPTS, "Test_2: embedded colon", CL_VIRUS},
{"notbasic", "/basic/r", "0", ACPATT_OPTION_NOOPTS, "Test_3: rolling option", CL_VIRUS},
{"nottrue", "/true/", "0", ACPATT_OPTION_NOOPTS, "Test4: rolling(off) option", CL_SUCCESS},
{"not12345678truly", "/12345678/e", "3,8", ACPATT_OPTION_NOOPTS, "Test_5: encompass option", CL_VIRUS},
{"not23456789truly", "/23456789/e", "4,8", ACPATT_OPTION_NOOPTS, "Test6: encompass option (low end)", CL_SUCCESS},
{"not34567890truly", "/34567890/e", "3,7", ACPATT_OPTION_NOOPTS, "Test7: encompass option (high end)", CL_SUCCESS},
{"notapietruly", "/apie/re", "2,2", ACPATT_OPTION_NOOPTS, "Test8: rolling encompass", CL_SUCCESS},
{"notafigtruly", "/afig/e", "2,2", ACPATT_OPTION_NOOPTS, "Test9: rolling(off) encompass", CL_SUCCESS},
{"notatretruly", "/atre/re", "2,6", ACPATT_OPTION_NOOPTS, "Test10: rolling encompass", CL_VIRUS},
{"notasadtruly", "/asad/e", "2,6", ACPATT_OPTION_NOOPTS, "Test11: rolling(off) encompass", CL_VIRUS},
{NULL, NULL, NULL, ACPATT_OPTION_NOOPTS, NULL, CL_CLEAN}};
#endif /* HAVE_PCRE */
static cli_ctx ctx;
static struct cl_scan_options options;
static fmap_t *thefmap = NULL;
static const char *virname = NULL;
static void setup(void)
{
struct cli_matcher *root;
virname = NULL;
thefmap = NULL;
memset(&ctx, 0, sizeof(ctx));
memset(&options, 0, sizeof(struct cl_scan_options));
ctx.options = &options;
ctx.virname = &virname;
ctx.fmap = &thefmap;
ctx.engine = cl_engine_new();
ck_assert_msg(!!ctx.engine, "cl_engine_new() failed");
root = (struct cli_matcher *)MPOOL_CALLOC(ctx.engine->mempool, 1, sizeof(struct cli_matcher));
ck_assert_msg(root != NULL, "root == NULL");
#ifdef USE_MPOOL
root->mempool = ctx.engine->mempool;
#endif
ctx.engine->root[0] = root;
}
static void teardown(void)
{
cl_engine_free((struct cl_engine *)ctx.engine);
}
START_TEST(test_ac_scanbuff)
{
struct cli_ac_data mdata;
struct cli_matcher *root;
unsigned int i;
int ret;
root = ctx.engine->root[0];
ck_assert_msg(root != NULL, "root == NULL");
root->ac_only = 1;
#ifdef USE_MPOOL
root->mempool = mpool_create();
#endif
ret = cli_ac_init(root, CLI_DEFAULT_AC_MINDEPTH, CLI_DEFAULT_AC_MAXDEPTH, 1);
ck_assert_msg(ret == CL_SUCCESS, "cli_ac_init() failed");
for (i = 0; ac_testdata[i].data; i++) {
ret = cli_parse_add(root, ac_testdata[i].virname, ac_testdata[i].hexsig, 0, 0, 0, "*", 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "cli_parse_add() failed");
}
ret = cli_ac_buildtrie(root);
ck_assert_msg(ret == CL_SUCCESS, "cli_ac_buildtrie() failed");
ret = cli_ac_initdata(&mdata, root->ac_partsigs, 0, 0, CLI_DEFAULT_AC_TRACKLEN);
ck_assert_msg(ret == CL_SUCCESS, "cli_ac_initdata() failed");
ctx.options->general &= ~CL_SCAN_GENERAL_ALLMATCHES; /* make sure all-match is disabled */
for (i = 0; ac_testdata[i].data; i++) {
ret = cli_ac_scanbuff((const unsigned char *)ac_testdata[i].data, strlen(ac_testdata[i].data), &virname, NULL, NULL, root, &mdata, 0, 0, NULL, AC_SCAN_VIR, NULL);
ck_assert_msg(ret == CL_VIRUS, "cli_ac_scanbuff() failed for %s", ac_testdata[i].virname);
ck_assert_msg(!strncmp(virname, ac_testdata[i].virname, strlen(ac_testdata[i].virname)), "Dataset %u matched with %s", i, virname);
ret = cli_scan_buff((const unsigned char *)ac_testdata[i].data, strlen(ac_testdata[i].data), 0, &ctx, 0, NULL);
ck_assert_msg(ret == CL_VIRUS, "cli_scan_buff() failed for %s", ac_testdata[i].virname);
ck_assert_msg(!strncmp(virname, ac_testdata[i].virname, strlen(ac_testdata[i].virname)), "Dataset %u matched with %s", i, virname);
}
cli_ac_freedata(&mdata);
}
END_TEST
START_TEST(test_ac_scanbuff_allscan)
{
struct cli_ac_data mdata;
struct cli_matcher *root;
unsigned int i;
int ret;
root = ctx.engine->root[0];
ck_assert_msg(root != NULL, "root == NULL");
root->ac_only = 1;
#ifdef USE_MPOOL
root->mempool = mpool_create();
#endif
ret = cli_ac_init(root, CLI_DEFAULT_AC_MINDEPTH, CLI_DEFAULT_AC_MAXDEPTH, 1);
ck_assert_msg(ret == CL_SUCCESS, "cli_ac_init() failed");
for (i = 0; ac_testdata[i].data; i++) {
ret = cli_parse_add(root, ac_testdata[i].virname, ac_testdata[i].hexsig, 0, 0, 0, "*", 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "cli_parse_add() failed");
}
ret = cli_ac_buildtrie(root);
ck_assert_msg(ret == CL_SUCCESS, "cli_ac_buildtrie() failed");
ret = cli_ac_initdata(&mdata, root->ac_partsigs, 0, 0, CLI_DEFAULT_AC_TRACKLEN);
ck_assert_msg(ret == CL_SUCCESS, "cli_ac_initdata() failed");
ctx.options->general |= CL_SCAN_GENERAL_ALLMATCHES; /* enable all-match */
for (i = 0; ac_testdata[i].data; i++) {
ret = cli_ac_scanbuff((const unsigned char *)ac_testdata[i].data, strlen(ac_testdata[i].data), &virname, NULL, NULL, root, &mdata, 0, 0, NULL, AC_SCAN_VIR, NULL);
ck_assert_msg(ret == CL_VIRUS, "cli_ac_scanbuff() failed for %s", ac_testdata[i].virname);
ck_assert_msg(!strncmp(virname, ac_testdata[i].virname, strlen(ac_testdata[i].virname)), "Dataset %u matched with %s", i, virname);
ret = cli_scan_buff((const unsigned char *)ac_testdata[i].data, strlen(ac_testdata[i].data), 0, &ctx, 0, NULL);
ck_assert_msg(ret == CL_VIRUS, "cli_scan_buff() failed for %s", ac_testdata[i].virname);
ck_assert_msg(!strncmp(virname, ac_testdata[i].virname, strlen(ac_testdata[i].virname)), "Dataset %u matched with %s", i, virname);
if (ctx.num_viruses)
ctx.num_viruses = 0;
}
cli_ac_freedata(&mdata);
}
END_TEST
START_TEST(test_ac_scanbuff_ex)
{
struct cli_ac_data mdata;
struct cli_matcher *root;
unsigned int i;
int ret;
root = ctx.engine->root[0];
ck_assert_msg(root != NULL, "root == NULL");
root->ac_only = 1;
#ifdef USE_MPOOL
root->mempool = mpool_create();
#endif
ret = cli_ac_init(root, CLI_DEFAULT_AC_MINDEPTH, CLI_DEFAULT_AC_MAXDEPTH, 1);
ck_assert_msg(ret == CL_SUCCESS, "[ac_ex] cli_ac_init() failed");
for (i = 0; ac_sigopts_testdata[i].data; i++) {
ret = cli_sigopts_handler(root, ac_sigopts_testdata[i].virname, ac_sigopts_testdata[i].hexsig, ac_sigopts_testdata[i].sigopts, 0, 0, ac_sigopts_testdata[i].offset, 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "[ac_ex] cli_sigopts_handler() failed");
}
ret = cli_ac_buildtrie(root);
ck_assert_msg(ret == CL_SUCCESS, "[ac_ex] cli_ac_buildtrie() failed");
ret = cli_ac_initdata(&mdata, root->ac_partsigs, 0, 0, CLI_DEFAULT_AC_TRACKLEN);
ck_assert_msg(ret == CL_SUCCESS, "[ac_ex] cli_ac_initdata() failed");
ctx.options->general &= ~CL_SCAN_GENERAL_ALLMATCHES; /* make sure all-match is disabled */
for (i = 0; ac_sigopts_testdata[i].data; i++) {
ret = cli_ac_scanbuff((const unsigned char *)ac_sigopts_testdata[i].data, ac_sigopts_testdata[i].dlength, &virname, NULL, NULL, root, &mdata, 0, 0, NULL, AC_SCAN_VIR, NULL);
ck_assert_msg(ret == ac_sigopts_testdata[i].expected_result, "[ac_ex] cli_ac_scanbuff() failed for %s (%d != %d)", ac_sigopts_testdata[i].virname, ret, ac_sigopts_testdata[i].expected_result);
if (ac_sigopts_testdata[i].expected_result == CL_VIRUS)
ck_assert_msg(!strncmp(virname, ac_sigopts_testdata[i].virname, strlen(ac_sigopts_testdata[i].virname)), "[ac_ex] Dataset %u matched with %s", i, virname);
ret = cli_scan_buff((const unsigned char *)ac_sigopts_testdata[i].data, ac_sigopts_testdata[i].dlength, 0, &ctx, 0, NULL);
ck_assert_msg(ret == ac_sigopts_testdata[i].expected_result, "[ac_ex] cli_ac_scanbuff() failed for %s (%d != %d)", ac_sigopts_testdata[i].virname, ret, ac_sigopts_testdata[i].expected_result);
}
cli_ac_freedata(&mdata);
}
END_TEST
START_TEST(test_ac_scanbuff_allscan_ex)
{
struct cli_ac_data mdata;
struct cli_matcher *root;
unsigned int i;
int ret;
root = ctx.engine->root[0];
ck_assert_msg(root != NULL, "root == NULL");
root->ac_only = 1;
#ifdef USE_MPOOL
root->mempool = mpool_create();
#endif
ret = cli_ac_init(root, CLI_DEFAULT_AC_MINDEPTH, CLI_DEFAULT_AC_MAXDEPTH, 1);
ck_assert_msg(ret == CL_SUCCESS, "[ac_ex] cli_ac_init() failed");
for (i = 0; ac_sigopts_testdata[i].data; i++) {
ret = cli_sigopts_handler(root, ac_sigopts_testdata[i].virname, ac_sigopts_testdata[i].hexsig, ac_sigopts_testdata[i].sigopts, 0, 0, ac_sigopts_testdata[i].offset, 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "[ac_ex] cli_sigopts_handler() failed");
}
ret = cli_ac_buildtrie(root);
ck_assert_msg(ret == CL_SUCCESS, "[ac_ex] cli_ac_buildtrie() failed");
ret = cli_ac_initdata(&mdata, root->ac_partsigs, 0, 0, CLI_DEFAULT_AC_TRACKLEN);
ck_assert_msg(ret == CL_SUCCESS, "[ac_ex] cli_ac_initdata() failed");
ctx.options->general |= CL_SCAN_GENERAL_ALLMATCHES; /* enable all-match */
for (i = 0; ac_sigopts_testdata[i].data; i++) {
ret = cli_ac_scanbuff((const unsigned char *)ac_sigopts_testdata[i].data, ac_sigopts_testdata[i].dlength, &virname, NULL, NULL, root, &mdata, 0, 0, NULL, AC_SCAN_VIR, NULL);
ck_assert_msg(ret == ac_sigopts_testdata[i].expected_result, "[ac_ex] cli_ac_scanbuff() failed for %s (%d != %d)", ac_sigopts_testdata[i].virname, ret, ac_sigopts_testdata[i].expected_result);
if (ac_sigopts_testdata[i].expected_result == CL_VIRUS)
ck_assert_msg(!strncmp(virname, ac_sigopts_testdata[i].virname, strlen(ac_sigopts_testdata[i].virname)), "[ac_ex] Dataset %u matched with %s", i, virname);
ret = cli_scan_buff((const unsigned char *)ac_sigopts_testdata[i].data, ac_sigopts_testdata[i].dlength, 0, &ctx, 0, NULL);
ck_assert_msg(ret == ac_sigopts_testdata[i].expected_result, "[ac_ex] cli_ac_scanbuff() failed for %s (%d != %d)", ac_sigopts_testdata[i].virname, ret, ac_sigopts_testdata[i].expected_result);
if (ctx.num_viruses)
ctx.num_viruses = 0;
}
cli_ac_freedata(&mdata);
}
END_TEST
START_TEST(test_bm_scanbuff)
{
struct cli_matcher *root;
const char *virname = NULL;
int ret;
root = ctx.engine->root[0];
ck_assert_msg(root != NULL, "root == NULL");
#ifdef USE_MPOOL
root->mempool = mpool_create();
#endif
ret = cli_bm_init(root);
ck_assert_msg(ret == CL_SUCCESS, "cli_bm_init() failed");
ret = cli_parse_add(root, "Sig1", "deadbabe", 0, 0, 0, "*", 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "cli_parse_add() failed");
ret = cli_parse_add(root, "Sig2", "deadbeef", 0, 0, 0, "*", 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "cli_parse_add() failed");
ret = cli_parse_add(root, "Sig3", "babedead", 0, 0, 0, "*", 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "cli_parse_add() failed");
ctx.options->general &= ~CL_SCAN_GENERAL_ALLMATCHES; /* make sure all-match is disabled */
ret = cli_bm_scanbuff((const unsigned char *)"blah\xde\xad\xbe\xef", 12, &virname, NULL, root, 0, NULL, NULL, NULL);
ck_assert_msg(ret == CL_VIRUS, "cli_bm_scanbuff() failed");
ck_assert_msg(!strncmp(virname, "Sig2", 4), "Incorrect signature matched in cli_bm_scanbuff()\n");
}
END_TEST
START_TEST(test_bm_scanbuff_allscan)
{
struct cli_matcher *root;
const char *virname = NULL;
int ret;
root = ctx.engine->root[0];
ck_assert_msg(root != NULL, "root == NULL");
#ifdef USE_MPOOL
root->mempool = mpool_create();
#endif
ret = cli_bm_init(root);
ck_assert_msg(ret == CL_SUCCESS, "cli_bm_init() failed");
ret = cli_parse_add(root, "Sig1", "deadbabe", 0, 0, 0, "*", 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "cli_parse_add() failed");
ret = cli_parse_add(root, "Sig2", "deadbeef", 0, 0, 0, "*", 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "cli_parse_add() failed");
ret = cli_parse_add(root, "Sig3", "babedead", 0, 0, 0, "*", 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "cli_parse_add() failed");
ctx.options->general |= CL_SCAN_GENERAL_ALLMATCHES; /* enable all-match */
ret = cli_bm_scanbuff((const unsigned char *)"blah\xde\xad\xbe\xef", 12, &virname, NULL, root, 0, NULL, NULL, NULL);
ck_assert_msg(ret == CL_VIRUS, "cli_bm_scanbuff() failed");
ck_assert_msg(!strncmp(virname, "Sig2", 4), "Incorrect signature matched in cli_bm_scanbuff()\n");
}
END_TEST
#if HAVE_PCRE
START_TEST(test_pcre_scanbuff)
{
struct cli_ac_data mdata;
struct cli_matcher *root;
char *hexsig;
unsigned int i, hexlen;
int ret;
root = ctx.engine->root[0];
ck_assert_msg(root != NULL, "root == NULL");
#ifdef USE_MPOOL
root->mempool = mpool_create();
#endif
ret = cli_pcre_init();
ck_assert_msg(ret == CL_SUCCESS, "[pcre] cli_pcre_init() failed");
for (i = 0; pcre_testdata[i].data; i++) {
hexlen = strlen(PCRE_BYPASS) + strlen(pcre_testdata[i].hexsig) + 1;
hexsig = cli_calloc(hexlen, sizeof(char));
ck_assert_msg(hexsig != NULL, "[pcre] failed to prepend bypass (out-of-memory)");
strncat(hexsig, PCRE_BYPASS, hexlen);
strncat(hexsig, pcre_testdata[i].hexsig, hexlen);
ret = cli_parse_add(root, pcre_testdata[i].virname, hexsig, pcre_testdata[i].sigopts, 0, 0, pcre_testdata[i].offset, 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "[pcre] cli_parse_add() failed");
free(hexsig);
}
ret = cli_pcre_build(root, CLI_DEFAULT_PCRE_MATCH_LIMIT, CLI_DEFAULT_PCRE_RECMATCH_LIMIT, NULL);
ck_assert_msg(ret == CL_SUCCESS, "[pcre] cli_pcre_build() failed");
// recomputate offsets
ret = cli_ac_initdata(&mdata, root->ac_partsigs, root->ac_lsigs, root->ac_reloff_num, CLI_DEFAULT_AC_TRACKLEN);
ck_assert_msg(ret == CL_SUCCESS, "[pcre] cli_ac_initdata() failed");
ctx.options->general &= ~CL_SCAN_GENERAL_ALLMATCHES; /* make sure all-match is disabled */
for (i = 0; pcre_testdata[i].data; i++) {
ret = cli_pcre_scanbuf((const unsigned char *)pcre_testdata[i].data, strlen(pcre_testdata[i].data), &virname, NULL, root, NULL, NULL, NULL);
ck_assert_msg(ret == pcre_testdata[i].expected_result, "[pcre] cli_pcre_scanbuff() failed for %s (%d != %d)", pcre_testdata[i].virname, ret, pcre_testdata[i].expected_result);
if (pcre_testdata[i].expected_result == CL_VIRUS)
ck_assert_msg(!strncmp(virname, pcre_testdata[i].virname, strlen(pcre_testdata[i].virname)), "[pcre] Dataset %u matched with %s", i, virname);
ret = cli_scan_buff((const unsigned char *)pcre_testdata[i].data, strlen(pcre_testdata[i].data), 0, &ctx, 0, NULL);
ck_assert_msg(ret == pcre_testdata[i].expected_result, "[pcre] cli_scan_buff() failed for %s", pcre_testdata[i].virname);
}
cli_ac_freedata(&mdata);
}
END_TEST
START_TEST(test_pcre_scanbuff_allscan)
{
struct cli_ac_data mdata;
struct cli_matcher *root;
char *hexsig;
unsigned int i, hexlen;
int ret;
root = ctx.engine->root[0];
ck_assert_msg(root != NULL, "root == NULL");
#ifdef USE_MPOOL
root->mempool = mpool_create();
#endif
ret = cli_pcre_init();
ck_assert_msg(ret == CL_SUCCESS, "[pcre] cli_pcre_init() failed");
for (i = 0; pcre_testdata[i].data; i++) {
hexlen = strlen(PCRE_BYPASS) + strlen(pcre_testdata[i].hexsig) + 1;
hexsig = cli_calloc(hexlen, sizeof(char));
ck_assert_msg(hexsig != NULL, "[pcre] failed to prepend bypass (out-of-memory)");
strncat(hexsig, PCRE_BYPASS, hexlen);
strncat(hexsig, pcre_testdata[i].hexsig, hexlen);
ret = cli_parse_add(root, pcre_testdata[i].virname, hexsig, 0, 0, 0, pcre_testdata[i].offset, 0, NULL, 0);
ck_assert_msg(ret == CL_SUCCESS, "[pcre] cli_parse_add() failed");
free(hexsig);
}
ret = cli_pcre_build(root, CLI_DEFAULT_PCRE_MATCH_LIMIT, CLI_DEFAULT_PCRE_RECMATCH_LIMIT, NULL);
ck_assert_msg(ret == CL_SUCCESS, "[pcre] cli_pcre_build() failed");
// recomputate offsets
ret = cli_ac_initdata(&mdata, root->ac_partsigs, root->ac_lsigs, root->ac_reloff_num, CLI_DEFAULT_AC_TRACKLEN);
ck_assert_msg(ret == CL_SUCCESS, "[pcre] cli_ac_initdata() failed");
ctx.options->general |= CL_SCAN_GENERAL_ALLMATCHES; /* enable all-match */
for (i = 0; pcre_testdata[i].data; i++) {
ret = cli_pcre_scanbuf((const unsigned char *)pcre_testdata[i].data, strlen(pcre_testdata[i].data), &virname, NULL, root, NULL, NULL, NULL);
ck_assert_msg(ret == pcre_testdata[i].expected_result, "[pcre] cli_pcre_scanbuff() failed for %s (%d != %d)", pcre_testdata[i].virname, ret, pcre_testdata[i].expected_result);
if (pcre_testdata[i].expected_result == CL_VIRUS)
ck_assert_msg(!strncmp(virname, pcre_testdata[i].virname, strlen(pcre_testdata[i].virname)), "[pcre] Dataset %u matched with %s", i, virname);
ret = cli_scan_buff((const unsigned char *)pcre_testdata[i].data, strlen(pcre_testdata[i].data), 0, &ctx, 0, NULL);
ck_assert_msg(ret == pcre_testdata[i].expected_result, "[pcre] cli_scan_buff() failed for %s", pcre_testdata[i].virname);
/* num_virus field add to test case struct */
if (ctx.num_viruses)
ctx.num_viruses = 0;
}
cli_ac_freedata(&mdata);
}
END_TEST
#endif /* HAVE_PCRE */
Suite *test_matchers_suite(void)
{
Suite *s = suite_create("matchers");
TCase *tc_matchers;
tc_matchers = tcase_create("matchers");
suite_add_tcase(s, tc_matchers);
tcase_add_checked_fixture(tc_matchers, setup, teardown);
tcase_add_test(tc_matchers, test_ac_scanbuff);
tcase_add_test(tc_matchers, test_ac_scanbuff_ex);
tcase_add_test(tc_matchers, test_bm_scanbuff);
#if HAVE_PCRE
tcase_add_test(tc_matchers, test_pcre_scanbuff);
#endif
tcase_add_test(tc_matchers, test_ac_scanbuff_allscan);
tcase_add_test(tc_matchers, test_ac_scanbuff_allscan_ex);
tcase_add_test(tc_matchers, test_bm_scanbuff_allscan);
#if HAVE_PCRE
tcase_add_test(tc_matchers, test_pcre_scanbuff_allscan);
#endif
return s;
}
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