/* p_vmlinz.h -- This file is part of the UPX executable compressor. Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer Copyright (C) 1996-2015 Laszlo Molnar All Rights Reserved. UPX and the UCL library are free software; you can redistribute them and/or modify them 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; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Markus F.X.J. Oberhumer Laszlo Molnar */ #ifndef __UPX_P_VMLINZ_H #define __UPX_P_VMLINZ_H 1 /************************************************************************* // vmlinuz/i386 (gzip compressed Linux kernel image) **************************************************************************/ class PackVmlinuzI386 : public Packer { typedef Packer super; public: PackVmlinuzI386(InputFile *f); virtual int getVersion() const { return 13; } virtual int getFormat() const { return UPX_F_VMLINUZ_i386; } virtual const char *getName() const { return "vmlinuz/386"; } virtual const char *getFullName(const options_t *) const { return "i386-linux.kernel.vmlinuz"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; virtual int getStrategy(Filter &); virtual void pack(OutputFile *fo); virtual void unpack(OutputFile *fo); virtual bool canPack(); virtual int canUnpack(); protected: virtual int readFileHeader(); virtual int decompressKernel(); virtual void readKernel(); virtual void buildLoader(const Filter *ft); virtual Linker* newLinker() const; // virtual upx_byte *getLoader() const; // virtual int getLoaderSize() const; __packed_struct(boot_sect_t) char _[0x1f1]; unsigned char setup_sects; char __[2]; LE32 sys_size; char ___[6]; LE16 boot_flag; // 0xAA55 // 0x200 char ____[2]; unsigned char hdrs[4]; // "HdrS" LE16 version; // boot protocol char _____[9]; unsigned char load_flags; char ______[2]; LE32 code32_start; char _7[0x230 - (0x214 + 4)]; LE32 kernel_alignment; char relocatable_kernel; char _8[0x248 - (0x234 + 1)]; LE32 payload_offset; LE32 payload_length; // some more uninteresting fields here ... // see /usr/src/linux/Documentation/i386/boot.txt __packed_struct_end() boot_sect_t h; MemBuffer setup_buf; int setup_size; unsigned physical_start; unsigned page_offset; unsigned config_physical_align; unsigned filter_len; }; /************************************************************************* // bvmlinuz/i386 (gzip compressed Linux kernel image) **************************************************************************/ class PackBvmlinuzI386 : public PackVmlinuzI386 { typedef PackVmlinuzI386 super; public: PackBvmlinuzI386(InputFile *f) : super(f) { } virtual int getFormat() const { return UPX_F_BVMLINUZ_i386; } virtual const char *getName() const { return "bvmlinuz/386"; } virtual const char *getFullName(const options_t *) const { return "i386-linux.kernel.bvmlinuz"; } virtual const int *getFilters() const; virtual void pack(OutputFile *fo); protected: virtual void buildLoader(const Filter *ft); }; /************************************************************************* // elks/8086 (linux-8086 uncompressed kernel image) **************************************************************************/ class PackElks8086 : public PackVmlinuzI386 { typedef PackVmlinuzI386 super; public: PackElks8086(InputFile *f) : super(f) { } virtual int getFormat() const { return UPX_F_ELKS_8086; } virtual const char *getName() const { return "elks/8086"; } virtual const char *getFullName(const options_t *) const { return "i086-elks ???"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; virtual void pack(OutputFile *fo); virtual void unpack(OutputFile *fo); virtual int canUnpack(); protected: virtual int decompressKernel(); virtual void readKernel(); virtual void buildLoader(const Filter *ft); }; /************************************************************************* // vmlinuz/armel (gzip compressed Linux kernel image) **************************************************************************/ class PackVmlinuzARMEL : public Packer { typedef Packer super; public: PackVmlinuzARMEL(InputFile *f); virtual int getVersion() const { return 13; } virtual int getFormat() const { return UPX_F_VMLINUZ_ARMEL; } virtual const char *getName() const { return "vmlinuz/armel"; } virtual const char *getFullName(const options_t *) const { return "armel-linux.kernel.vmlinuz"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; virtual int getStrategy(Filter &); virtual void pack(OutputFile *fo); virtual void unpack(OutputFile *fo); virtual bool canPack(); virtual int canUnpack(); protected: virtual int readFileHeader(); virtual int decompressKernel(); virtual void readKernel(); virtual void buildLoader(const Filter *ft); virtual unsigned write_vmlinuz_head(OutputFile *const fo); virtual void defineDecompressorSymbols(); virtual Linker* newLinker() const; // virtual upx_byte *getLoader() const; // virtual int getLoaderSize() const; MemBuffer setup_buf; int setup_size; // unsigned physical_start; // unsigned page_offset; // unsigned config_physical_align; unsigned filter_len; }; #endif /* already included */ /* vi:ts=4:et */