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inital support for SIS files

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git-svn: trunk@1785
This commit is contained in:
Tomasz Kojm 2005-12-15 02:02:29 +00:00
parent 65cdd14616
commit bf45bf13c4
8 changed files with 279 additions and 3 deletions
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5
clamav-devel/ChangeLog
View file

@ -1,3 +1,8 @@
Thu Dec 15 02:52:01 CET 2005 (tk)
---------------------------------
* libclamav/sis.[ch]: new files
* libclamav: inital support for SIS files (Symbian OS packages)
Mon Dec 12 19:34:00 CET 2005 (tk)
---------------------------------
* libclamav: add support for CL_SCAN_ALGO (to control algorithmic detection)

4
clamav-devel/libclamav/Makefile.am
View file

@ -143,7 +143,9 @@ libclamav_la_SOURCES = \
spin.h \
elf.c \
elf.h \
execs.h
execs.h \
sis.c \
sis.h
lib_LTLIBRARIES = libclamav.la

7
clamav-devel/libclamav/Makefile.in
View file

@ -86,7 +86,7 @@ am_libclamav_la_OBJECTS = matcher-ac.lo matcher-bm.lo matcher.lo \
chmunpack.lo rebuildpe.lo petite.lo fsg.lo line.lo untar.lo \
special.lo binhex.lo is_tar.lo tnef.lo unrar15.lo unrarvm.lo \
unrar.lo unrarfilter.lo unrarppm.lo unrar20.lo unrarcmd.lo \
pdf.lo spin.lo elf.lo
pdf.lo spin.lo elf.lo sis.lo
libclamav_la_OBJECTS = $(am_libclamav_la_OBJECTS)
DEFAULT_INCLUDES = -I. -I$(srcdir) -I$(top_builddir)
depcomp = $(SHELL) $(top_srcdir)/depcomp
@ -337,7 +337,9 @@ libclamav_la_SOURCES = \
spin.h \
elf.c \
elf.h \
execs.h
execs.h \
sis.c \
sis.h
lib_LTLIBRARIES = libclamav.la
all: all-am
@ -439,6 +441,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/readdb.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rebuildpe.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/scanners.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sis.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/snprintf.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/special.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/spin.Plo@am__quote@

1
clamav-devel/libclamav/filetypes.c
View file

@ -63,6 +63,7 @@ static const struct cli_magic_s cli_magic[] = {
{0, "SZDD", 4, "compress.exe'd", CL_TYPE_MSSZDD},
{0, "MSCF", 4, "MS CAB", CL_TYPE_MSCAB},
{0, "ITSF", 4, "MS CHM", CL_TYPE_MSCHM},
{8, "\x19\x04\x00\x10", 4, "SIS", CL_TYPE_SIS},
{0, "#@~^", 4, "SCRENC", CL_TYPE_SCRENC},
{0, "(This file must be converted with BinHex 4.0)",
45, "BinHex", CL_TYPE_BINHEX},

1
clamav-devel/libclamav/filetypes.h
View file

@ -39,6 +39,7 @@ typedef enum {
CL_TYPE_MSOLE2,
CL_TYPE_MSCAB,
CL_TYPE_MSCHM,
CL_TYPE_SIS,
CL_TYPE_SCRENC,
CL_TYPE_GRAPHICS,
CL_TYPE_RIFF,

5
clamav-devel/libclamav/scanners.c
View file

@ -63,6 +63,7 @@ extern int cli_mbox(const char *dir, int desc, unsigned int options); /* FIXME *
#include "untar.h"
#include "special.h"
#include "binhex.h"
#include "sis.h"
#ifdef HAVE_ZLIB_H
#include <zlib.h>
@ -1622,6 +1623,10 @@ int cli_magic_scandesc(int desc, const char **virname, long int *scanned, const
ret = cli_scanelf(desc, virname, scanned, engine, limits, options, arec, mrec);
break;
case CL_TYPE_SIS:
ret = cli_scansis(desc, virname, scanned, engine, limits, options, arec, mrec);
break;
case CL_TYPE_DATA:
/* it could be a false positive and a standard DOS .COM file */
{

199
clamav-devel/libclamav/sis.c Normal file
View file

@ -0,0 +1,199 @@
/*
* Copyright (C) 2005 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <time.h>
#include "cltypes.h"
#include "clamav.h"
#include "others.h"
#include "sis.h"
#if WORDS_BIGENDIAN == 0
#define EC16(v) (v)
#define EC32(v) (v)
#else
static inline uint16_t EC16(uint16_t v)
{
return ((v >> 8) + (v << 8));
}
static inline uint32_t EC32(uint32_t v)
{
return ((v >> 24) | ((v & 0x00FF0000) >> 8) | ((v & 0x0000FF00) << 8) | (v << 24));
}
#endif
extern short cli_leavetemps_flag;
static char *langcodes[] = {
"", "EN", "FR", "GE", "SP", "IT", "SW", "DA", "NO", "FI", "AM",
"SF", "SG", "PO", "TU", "IC", "RU", "HU", "DU", "BL", "AU", "BG",
"AS", "NZ", "IF", "CS", "SK", "PL", "SL", "TC", "HK", "ZH", "JA",
"TH", "AF", "SQ", "AH", "AR", "HY", "TL", "BE", "BN", "BG", "MY",
"CA", "HR", "CE", "IE", "SF", "ET", "FA", "CF", "GD", "KA", "EL",
"CG", "GU", "HE", "HI", "IN", "GA", "SZ", "KN", "KK", "KM", "KO",
"LO", "LV", "LT", "MK", "MS", "ML", "MR", "MO", "MN", "NN", "BP",
"PA", "RO", "SR", "SI", "SO", "OS", "LS", "SH", "FS", "TA", "TE",
"BO", "TI", "CT", "TK", "UK", "UR", "", "VI", "CY", "ZU"
};
int cli_scansis(int desc, const char **virname, long int *scanned, const struct cl_engine *engine, const struct cl_limits *limits, unsigned int options, unsigned int arec, unsigned int mrec)
{
struct sis_file_hdr file_hdr;
struct sis_file_hdr6 file_hdr6;
uint8_t release = 0;
uint16_t opts, nlangs, *langrecs;
char *langs;
int i;
if(read(desc, &file_hdr, sizeof(struct sis_file_hdr)) != sizeof(struct sis_file_hdr)) {
cli_dbgmsg("SIS: Can't read file header\n"); /* Not a SIS file? */
return CL_CLEAN;
}
if(EC32(file_hdr.uid3) != 0x10000419) {
cli_dbgmsg("SIS: Not a SIS file\n");
return CL_CLEAN;
}
switch(EC32(file_hdr.uid2)) {
case 0x1000006d:
cli_dbgmsg("SIS: EPOC release 3, 4 or 5\n");
release = 3;
break;
case 0x10003a12:
cli_dbgmsg("SIS: EPOC release 6\n");
release = 6;
break;
default:
cli_warnmsg("SIS: Unknown value of UID 2 (EPOC release)\n");
}
/* TODO: Verify checksums (uid4 and checksum) */
/* Languages */
nlangs = EC16(file_hdr.nlangs);
cli_dbgmsg("SIS: Number of languages: %d\n", nlangs);
cli_dbgmsg("SIS: Offset of languages records: %d\n", EC32(file_hdr.plangs));
if(nlangs && nlangs < 100) {
if(lseek(desc, EC32(file_hdr.plangs), SEEK_SET) < 0) {
cli_errmsg("SIS: No language records\n");
return CL_EFORMAT;
}
langrecs = (uint16_t *) cli_malloc(nlangs * 2);
if(read(desc, langrecs, nlangs * 2) != nlangs * 2) {
cli_errmsg("SIS: Can't read language records\n");
free(langrecs);
return CL_EFORMAT;
}
langs = (char *) cli_calloc(nlangs * 3 + 1, sizeof(char));
for(i = 0; i < nlangs; i++) {
strncat(langs, langcodes[EC16(langrecs[i]) % 98], 2);
if(i != nlangs - 1)
strncat(langs, " ", 1);
}
cli_dbgmsg("SIS: Supported languages: %s\n", langs);
free(langrecs);
free(langs);
}
if(EC16(file_hdr.ilang))
cli_dbgmsg("SIS: Installation language: %d\n", EC16(file_hdr.ilang));
/* Files */
cli_dbgmsg("SIS: Number of files: %d\n", EC16(file_hdr.nfiles));
cli_dbgmsg("SIS: Offset of files records: %d\n", EC32(file_hdr.pfiles));
/* Requisites */
cli_dbgmsg("SIS: Number of requisites: %d\n", EC16(file_hdr.nreqs));
cli_dbgmsg("SIS: Offset of requisites records: %d\n", EC32(file_hdr.preqs));
/* Options flags */
opts = EC16(file_hdr.options);
cli_dbgmsg("SIS: Options:\n");
if(opts & 0x0001)
cli_dbgmsg("SIS: * File is in Unicode format\n");
if(opts & 0x0002)
cli_dbgmsg("SIS: * File is distributable\n");
if(opts & 0x0008)
cli_dbgmsg("SIS: * Packed files are not compressed\n");
else
cli_dbgmsg("SIS: * Packed files are compressed\n");
if(opts & 0x0010)
cli_dbgmsg("SIS: * File installation shuts down all applications\n");
/* Type flags */
switch(EC16(file_hdr.type)) {
case 0x0000:
cli_dbgmsg("SIS: Type: Contains an application\n");
break;
case 0x0001:
cli_dbgmsg("SIS: Type: Contains a shared/system component\n");
break;
case 0x0002:
cli_dbgmsg("SIS: Type: Contains an optional (selectable) component\n");
break;
case 0x0003:
cli_dbgmsg("SIS: Type: Configures an existing application or service\n");
break;
case 0x0004:
cli_dbgmsg("SIS: Type: Patches an existing component\n");
break;
case 0x0005:
cli_dbgmsg("SIS: Type: Upgrades an existing component\n");
break;
default:
cli_warnmsg("SIS: Unknown value of type\n");
}
cli_dbgmsg("SIS: Major version: %d\n", EC16(file_hdr.majorver));
cli_dbgmsg("SIS: Minor version: %d\n", EC16(file_hdr.minorver));
if(release == 6) {
lseek(desc, sizeof(struct sis_file_hdr), SEEK_SET);
if(read(desc, &file_hdr6, sizeof(struct sis_file_hdr6)) != sizeof(struct sis_file_hdr6)) {
cli_dbgmsg("SIS: Can't read additional data of EPOC 6 file header\n"); /* Not a SIS file? */
return CL_EFORMAT;
}
cli_dbgmsg("SIS: Maximum space required: %d\n", EC32(file_hdr6.maxispace));
}
return CL_CLEAN;
}

60
clamav-devel/libclamav/sis.h Normal file
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@ -0,0 +1,60 @@
/*
* Copyright (C) 2005 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __SIS_H
#define __SIS_H
#include "clamav.h"
struct sis_file_hdr {
uint32_t uid1;
uint32_t uid2;
uint32_t uid3;
uint32_t uid4;
uint16_t checksum;
uint16_t nlangs;
uint16_t nfiles;
uint16_t nreqs;
uint16_t ilang;
uint16_t ifiles;
uint16_t idrive;
uint16_t ncaps;
uint32_t iver;
uint16_t options;
uint16_t type;
uint16_t majorver;
uint16_t minorver;
uint16_t variant;
uint32_t plangs;
uint32_t pfiles;
uint32_t preqs;
uint32_t pcerts;
uint32_t pname;
};
struct sis_file_hdr6 {
uint32_t psig;
uint32_t pcaps;
uint32_t ispace;
uint32_t maxispace;
uint32_t reserved[4];
};
int cli_scansis(int desc, const char **virname, long int *scanned, const struct cl_engine *engine, const struct cl_limits *limits, unsigned int options, unsigned int arec, unsigned int mrec);
#endif