/*
* Copyright (C) 2013-2019 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
* Copyright (C) 2009-2013 Sourcefire, Inc.
*
* Author: Tomasz Kojm <tkojm@clamav.net>
*
* 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 <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <time.h>
#ifdef HAVE_UNAME_SYSCALL
#include <sys/utsname.h>
#endif
#include <zlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include "shared/optparser.h"
#include "shared/misc.h"
#include "clamav-config.h"
#include "libclamav/str.h"
#include "libclamav/clamav.h"
#include "libclamav/others.h"
#include "libclamav/readdb.h"
#include "libclamav/bytecode.h"
#include "libclamav/bytecode_detect.h"
#include "target.h"
#include "fpu.h"
#ifndef _WIN32
extern const struct clam_option *clam_options;
#else
__declspec(dllimport) extern const struct clam_option *clam_options;
#endif
static struct _cfgfile {
const char *name;
int tool;
} cfgfile[] = {
{"clamd.conf", OPT_CLAMD},
{"freshclam.conf", OPT_FRESHCLAM},
{"clamav-milter.conf", OPT_MILTER},
{NULL, 0}};
static void printopts(struct optstruct *opts, int nondef)
{
const struct optstruct *opt;
while (opts) {
if (!opts->name) {
opts = opts->next;
continue;
}
if (clam_options[opts->idx].owner & OPT_DEPRECATED) {
if (opts->active)
printf("*** %s is DEPRECATED ***\n", opts->name);
opts = opts->next;
continue;
}
if (nondef && (opts->numarg == clam_options[opts->idx].numarg) && ((opts->strarg == clam_options[opts->idx].strarg) || (opts->strarg && clam_options[opts->idx].strarg && !strcmp(opts->strarg, clam_options[opts->idx].strarg)))) {
opts = opts->next;
continue;
}
if (!opts->enabled)
printf("%s disabled\n", opts->name);
else
switch (clam_options[opts->idx].argtype) {
case CLOPT_TYPE_STRING:
printf("%s = \"%s\"", opts->name, opts->strarg);
opt = opts;
while ((opt = opt->nextarg))
printf(", \"%s\"", opt->strarg);
printf("\n");
break;
case CLOPT_TYPE_NUMBER:
case CLOPT_TYPE_SIZE:
printf("%s = \"%lld\"", opts->name, opts->numarg);
opt = opts;
while ((opt = opt->nextarg))
printf(", \"%lld\"", opt->numarg);
printf("\n");
break;
case CLOPT_TYPE_BOOL:
printf("%s = \"yes\"\n", opts->name);
break;
default:
printf("!!! %s: UNKNOWN INTERNAL TYPE !!!\n", opts->name);
}
opts = opts->next;
}
}
static int printconf(const char *name)
{
int i, j, tool = 0, tokens_count;
char buffer[1025];
const char *tokens[128];
const struct clam_option *cpt;
for (i = 0; cfgfile[i].name; i++) {
if (!strcmp(name, cfgfile[i].name)) {
tool = cfgfile[i].tool;
break;
}
}
if (!tool) {
printf("ERROR: Unknown config file\nAvailable options:");
for (i = 0; cfgfile[i].name; i++)
printf(" %s", cfgfile[i].name);
printf("\n");
return 1;
}
printf("##\n## %s - automatically generated by clamconf " VERSION "\n##\n", name);
printf("\n# Comment out or remove the line below.\nExample\n");
for (i = 0; clam_options[i].owner; i++) {
cpt = &clam_options[i];
if (cpt->name && (cpt->owner & tool) && !(cpt->owner & OPT_DEPRECATED) && !(cpt->flags & 4)) {
strncpy(buffer, cpt->description, sizeof(buffer) - 1);
buffer[sizeof(buffer) - 1] = 0;
tokens_count = cli_strtokenize(buffer, '\n', 128, tokens);
printf("\n");
for (j = 0; j < tokens_count; j++)
printf("# %s\n", tokens[j]);
switch (cpt->argtype) {
case CLOPT_TYPE_STRING:
if (cpt->strarg)
printf("# Default: %s\n", cpt->strarg);
else
printf("# Default: disabled\n");
break;
case CLOPT_TYPE_NUMBER:
if (cpt->numarg != -1)
printf("# Default: %lld\n", cpt->numarg);
else
printf("# Default: disabled\n");
break;
case CLOPT_TYPE_SIZE:
printf("# You may use 'M' or 'm' for megabytes (1M = 1m = 1048576 bytes)\n# and 'K' or 'k' for kilobytes (1K = 1k = 1024 bytes). To specify the size\n# in bytes just don't use modifiers.\n");
if (cpt->numarg != -1)
printf("# Default: %lld\n", cpt->numarg);
else
printf("# Default: disabled\n");
break;
case CLOPT_TYPE_BOOL:
if (cpt->numarg != -1)
printf("# Default: %s\n", cpt->numarg ? "yes" : "no");
else
printf("# Default: disabled\n");
break;
default:
printf("!!! %s: UNKNOWN INTERNAL TYPE !!!\n", cpt->name);
}
if (cpt->suggested && strchr(cpt->suggested, '\n')) {
strncpy(buffer, cpt->suggested, sizeof(buffer) - 1);
buffer[sizeof(buffer) - 1] = 0;
tokens_count = cli_strtokenize(buffer, '\n', 128, tokens);
for (j = 0; j < tokens_count; j++)
printf("#%s %s\n", cpt->name, tokens[j]);
} else {
printf("#%s %s\n", cpt->name, cpt->suggested ? cpt->suggested : "ARG");
}
}
}
return 0;
}
static void help(void)
{
printf("\n");
printf(" Clam AntiVirus: Configuration Tool %s\n", get_version());
printf(" By The ClamAV Team: https://www.clamav.net/about.html#credits\n");
printf(" (C) 2019 Cisco Systems, Inc.\n");
printf("\n");
printf(" --help -h Show this help\n");
printf(" --version -V Show version\n");
printf(" --config-dir=DIR -c DIR Read configuration files from DIR\n");
printf(" --non-default -n Only display non-default settings\n");
printf(" --generate-config=NAME -g NAME Generate example config file\n");
printf("\n");
return;
}
static void print_platform(struct cli_environment *env)
{
printf("\nPlatform information\n--------------------\n");
printf("uname: %s %s %s %s\n",
env->sysname, env->release, env->version, env->machine);
printf("OS: " TARGET_OS_TYPE ", ARCH: " TARGET_ARCH_TYPE ", CPU: " TARGET_CPU_TYPE "\n");
#ifdef C_LINUX
if (!access("/usr/bin/lsb_release", X_OK)) {
fputs("Full OS version: ", stdout);
fflush(stdout);
if (system("/usr/bin/lsb_release -d -s") == -1) {
perror("failed to determine");
}
}
#else
/* e.g. Solaris */
if (!access("/etc/release", R_OK)) {
char buf[1024];
FILE *f = fopen("/etc/release", "r");
if (f) {
fgets(buf, sizeof(buf), f);
printf("Full OS version: %s", buf);
fclose(f);
}
}
#endif
if (strcmp(ZLIB_VERSION, zlibVersion()))
printf("WARNING: zlib version mismatch: %s (%s)\n", ZLIB_VERSION, zlibVersion());
#ifdef ZLIB_VERNUM
printf("zlib version: %s (%s), compile flags: %02lx\n",
ZLIB_VERSION, zlibVersion(), zlibCompileFlags());
#else
/* old zlib w/o zlibCompileFlags() */
printf("zlib version: %s (%s)\n",
ZLIB_VERSION, zlibVersion());
#endif
if (env->triple[0])
printf("Triple: %s\n", env->triple);
if (env->cpu[0])
printf("CPU: %s, %s\n", env->cpu, env->big_endian ? "Big-endian" : "Little-endian");
printf("platform id: 0x%08x%08x%08x\n",
env->platform_id_a,
env->platform_id_b,
env->platform_id_c);
}
static void print_build(struct cli_environment *env)
{
const char *name;
const char *version = NULL;
printf("\nBuild information\n-----------------\n");
/* Try to print information about some commonly used compilers */
#ifdef __GNUC__
version = __VERSION__;
#endif
switch (env->compiler) {
case compiler_gnuc:
name = "GNU C";
break;
case compiler_clang:
name = "Clang";
break;
case compiler_llvm:
name = "LLVM-GCC";
break;
case compiler_intel:
name = "Intel Compiler";
break;
case compiler_msc:
name = "Microsoft Visual C++";
break;
case compiler_sun:
name = "Sun studio";
break;
default:
name = NULL;
}
if (name)
printf("%s: %s%s(%u.%u.%u)\n", name,
version ? version : "",
version ? " " : "",
env->c_version >> 16,
(env->c_version >> 8) & 0xff,
(env->c_version) & 0xff);
cli_printcxxver();
#if defined(BUILD_CPPFLAGS) && defined(BUILD_CFLAGS) && defined(BUILD_CXXFLAGS) && defined(BUILD_LDFLAGS) && defined(BUILD_CONFIGURE_FLAGS)
printf("CPPFLAGS: %s\nCFLAGS: %s\nCXXFLAGS: %s\nLDFLAGS: %s\nConfigure: %s\n",
BUILD_CPPFLAGS, BUILD_CFLAGS, BUILD_CXXFLAGS, BUILD_LDFLAGS,
BUILD_CONFIGURE_FLAGS);
#endif
printf("sizeof(void*) = %d\n", env->sizeof_ptr);
printf("Engine flevel: %d, dconf: %d\n",
env->functionality_level,
env->dconf_level);
}
static void print_dbs(const char *dir)
{
DIR *dd;
struct dirent *dent;
char *dbfile;
unsigned int flevel = cl_retflevel(), cnt, sigs = 0;
struct cl_cvd *cvd;
if ((dd = opendir(dir)) == NULL) {
printf("print_dbs: Can't open directory %s\n", dir);
return;
}
while ((dent = readdir(dd))) {
if (dent->d_ino) {
if (CLI_DBEXT(dent->d_name)) {
dbfile = (char *)malloc(strlen(dent->d_name) + strlen(dir) + 2);
if (!dbfile) {
printf("print_dbs: Can't allocate memory for dbfile\n");
closedir(dd);
return;
}
sprintf(dbfile, "%s" PATHSEP "%s", dir, dent->d_name);
if (cli_strbcasestr(dbfile, ".cvd") || cli_strbcasestr(dbfile, ".cld")) {
cvd = cl_cvdhead(dbfile);
if (!cvd) {
printf("%s: Can't get information about the database\n", dbfile);
} else {
const time_t t = cvd->stime;
printf("%s: version %u, sigs: %u, built on %s", dent->d_name, cvd->version, cvd->sigs, ctime(&t));
sigs += cvd->sigs;
if (cvd->fl > flevel)
printf("%s: WARNING: This database requires f-level %u (current f-level: %u)\n", dent->d_name, cvd->fl, flevel);
cl_cvdfree(cvd);
}
} else if (cli_strbcasestr(dbfile, ".cbc")) {
printf("[3rd Party] %s: bytecode\n", dent->d_name);
sigs++;
} else {
cnt = countlines(dbfile);
printf("[3rd Party] %s: %u sig%c\n", dent->d_name, cnt, cnt > 1 ? 's' : ' ');
sigs += cnt;
}
free(dbfile);
}
}
}
closedir(dd);
printf("Total number of signatures: %u\n", sigs);
}
int main(int argc, char **argv)
{
const char *dir;
char path[512], dbdir[512], clamd_dbdir[512], *pt;
struct optstruct *opts, *toolopts;
const struct optstruct *opt;
unsigned int i, j;
struct cli_environment env;
opts = optparse(NULL, argc, argv, 1, OPT_CLAMCONF, 0, NULL);
if (!opts) {
printf("ERROR: Can't parse command line options\n");
return 1;
}
if (optget(opts, "help")->enabled) {
help();
optfree(opts);
return 0;
}
if (optget(opts, "version")->enabled) {
printf("Clam AntiVirus Configuration Tool %s\n", get_version());
optfree(opts);
return 0;
}
if ((opt = optget(opts, "generate-config"))->enabled) {
printconf(opt->strarg);
optfree(opts);
return 0;
}
dbdir[0] = 0;
clamd_dbdir[0] = 0;
dir = optget(opts, "config-dir")->strarg;
printf("Checking configuration files in %s\n", dir);
for (i = 0; cfgfile[i].name; i++) {
snprintf(path, sizeof(path), "%s" PATHSEP "%s", dir, cfgfile[i].name);
path[511] = 0;
if (access(path, R_OK)) {
printf("\n%s not found\n", cfgfile[i].name);
continue;
}
printf("\nConfig file: %s\n", cfgfile[i].name);
for (j = 0; j < strlen(cfgfile[i].name) + 13; j++)
printf("-");
printf("\n");
toolopts = optparse(path, 0, NULL, 1, cfgfile[i].tool | OPT_DEPRECATED, 0, NULL);
if (!toolopts)
continue;
printopts(toolopts, optget(opts, "non-default")->enabled);
if (cfgfile[i].tool == OPT_FRESHCLAM) {
opt = optget(toolopts, "DatabaseDirectory");
strncpy(dbdir, opt->strarg, sizeof(dbdir));
dbdir[sizeof(dbdir) - 1] = 0;
} else if (cfgfile[i].tool == OPT_CLAMD) {
opt = optget(toolopts, "DatabaseDirectory");
strncpy(clamd_dbdir, opt->strarg, sizeof(clamd_dbdir));
clamd_dbdir[sizeof(clamd_dbdir) - 1] = 0;
}
optfree(toolopts);
}
optfree(opts);
printf("\nSoftware settings\n-----------------\n");
printf("Version: %s\n", cl_retver());
if (strcmp(cl_retver(), get_version()))
printf("WARNING: Version mismatch: libclamav=%s, clamconf=%s\n", cl_retver(), get_version());
cl_init(CL_INIT_DEFAULT);
printf("Optional features supported: ");
#ifdef USE_MPOOL
printf("MEMPOOL ");
#endif
#ifdef SUPPORT_IPv6
printf("IPv6 ");
#endif
#ifdef CLAMUKO
printf("CLAMUKO ");
#endif
#ifdef C_BIGSTACK
printf("BIGSTACK ");
#endif
#ifdef FRESHCLAM_DNS_FIX
printf("FRESHCLAM_DNS_FIX ");
#endif
#ifndef _WIN32
if (get_fpu_endian() != FPU_ENDIAN_UNKNOWN)
#endif
printf("AUTOIT_EA06 ");
#ifdef HAVE_BZLIB_H
printf("BZIP2 ");
#endif
#ifdef HAVE_LIBXML2
printf("LIBXML2 ");
#endif
#ifdef HAVE_PCRE
#if USING_PCRE2
printf("PCRE2 ");
#else
printf("PCRE ");
#endif
#endif
#ifdef HAVE_ICONV
printf("ICONV ");
#endif
#ifdef HAVE_JSON
printf("JSON ");
#endif
if (have_rar)
printf("RAR ");
if (have_clamjit)
printf("JIT");
printf("\n");
if (!strlen(dbdir)) {
pt = freshdbdir();
if (pt) {
strncpy(dbdir, pt, sizeof(dbdir));
free(pt);
} else {
strncpy(dbdir, DATADIR, sizeof(dbdir));
}
dbdir[sizeof(dbdir) - 1] = 0;
}
printf("\nDatabase information\n--------------------\n");
printf("Database directory: %s\n", dbdir);
if (strcmp(dbdir, clamd_dbdir))
printf("WARNING: freshclam.conf and clamd.conf point to different database directories\n");
print_dbs(dbdir);
cli_detect_environment(&env);
print_platform(&env);
print_build(&env);
return 0;
}