/* p_vmlinx.h -- This file is part of the UPX executable compressor. Copyright (C) 1996-2016 Markus Franz Xaver Johannes Oberhumer Copyright (C) 1996-2016 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_VMLINX_H #define __UPX_P_VMLINX_H 1 #include "p_elf.h" /************************************************************************* // vmlinx/i386 (bare binary Linux kernel image) **************************************************************************/ template class PackVmlinuxBase : public Packer { typedef Packer super; protected: typedef TElfClass ElfClass; typedef typename ElfClass::BeLePolicy BeLePolicy; typedef typename ElfClass::ElfITypes ElfITypes; // integral types typedef typename ElfClass::TE16 TE16; typedef typename ElfClass::TE32 TE32; typedef typename ElfClass::TE64 TE64; typedef typename ElfITypes::Addr Addr; // ELF types typedef typename ElfClass::Ehdr Ehdr; typedef typename ElfClass::Shdr Shdr; typedef typename ElfClass::Phdr Phdr; typedef typename ElfClass::Dyn Dyn; typedef typename ElfClass::Sym Sym; public: PackVmlinuxBase(InputFile *, unsigned, unsigned, unsigned, char const *); virtual ~PackVmlinuxBase(); virtual int getVersion() const { return 13; } protected: unsigned int const my_e_machine; unsigned char const my_elfclass; unsigned char const my_elfdata; char const *const my_boot_label; int n_ptload; unsigned sz_ptload; unsigned paddr_min; Phdr *phdri; // from input file Shdr *shdri; // from input file char *shstrtab; // from input file Shdr *p_text; Shdr *p_note0; Shdr *p_note1; Ehdr ehdri; // from input file virtual Shdr const *getElfSections(); virtual int getStrategy(Filter &/*ft*/); virtual bool is_valid_e_entry(Addr) = 0; virtual bool has_valid_vmlinux_head() = 0; virtual bool canPack(); virtual void pack(OutputFile *fo); virtual int canUnpack(); // bool, except -1: format known, but not packed virtual void unpack(OutputFile *fo); virtual unsigned write_vmlinux_head( OutputFile *const fo, Shdr *const stxt ) = 0; static int __acc_cdecl_qsort compare_Phdr(void const *aa, void const *bb); }; class PackVmlinuxI386 : public PackVmlinuxBase { typedef PackVmlinuxBase super; public: PackVmlinuxI386(InputFile *f) : super(f, Ehdr::EM_386, Ehdr::ELFCLASS32, Ehdr::ELFDATA2LSB, "startup_32") { } virtual int getFormat() const { return UPX_F_VMLINUX_i386; } virtual const char *getName() const { return "vmlinux/i386"; } virtual const char *getFullName(const options_t *) const { return "i386-linux.kernel.vmlinux"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; protected: virtual void buildLoader(const Filter *ft); virtual void defineDecompressorSymbols(); virtual Linker* newLinker() const; virtual bool is_valid_e_entry(Addr); virtual bool has_valid_vmlinux_head(); virtual unsigned write_vmlinux_head( OutputFile *const fo, Shdr *const stxt ); }; class PackVmlinuxARMEL : public PackVmlinuxBase { typedef PackVmlinuxBase super; public: PackVmlinuxARMEL(InputFile *f) : super(f, Ehdr::EM_ARM, Ehdr::ELFCLASS32, Ehdr::ELFDATA2LSB, "decompress_kernel") { } virtual int getFormat() const { return UPX_F_VMLINUX_ARMEL; } virtual const char *getName() const { return "vmlinux/arm"; } virtual const char *getFullName(const options_t *) const { return "arm-linux.kernel.vmlinux"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; protected: virtual void buildLoader(const Filter *ft); virtual void defineDecompressorSymbols(); virtual Linker* newLinker() const; virtual bool is_valid_e_entry(Addr); virtual bool has_valid_vmlinux_head(); virtual unsigned write_vmlinux_head( OutputFile *const fo, Shdr *const stxt ); }; class PackVmlinuxARMEB : public PackVmlinuxBase { typedef PackVmlinuxBase super; public: PackVmlinuxARMEB(InputFile *f) : super(f, Ehdr::EM_ARM, Ehdr::ELFCLASS32, Ehdr::ELFDATA2MSB, "decompress_kernel") { } virtual int getFormat() const { return UPX_F_VMLINUX_ARMEB; } virtual const char *getName() const { return "vmlinux/armeb"; } virtual const char *getFullName(const options_t *) const { return "armeb-linux.kernel.vmlinux"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; protected: virtual void buildLoader(const Filter *ft); virtual void defineDecompressorSymbols(); virtual Linker* newLinker() const; virtual bool is_valid_e_entry(Addr); virtual bool has_valid_vmlinux_head(); virtual unsigned write_vmlinux_head( OutputFile *const fo, Shdr *const stxt ); }; class PackVmlinuxPPC32 : public PackVmlinuxBase { typedef PackVmlinuxBase super; public: PackVmlinuxPPC32(InputFile *f) : super(f, Ehdr::EM_PPC, Ehdr::ELFCLASS32, Ehdr::ELFDATA2MSB, "_vmlinux_start") { } virtual int getFormat() const { return UPX_F_VMLINUX_PPC32; } virtual const char *getName() const { return "vmlinux/ppc32"; } virtual const char *getFullName(const options_t *) const { return "powerpc-linux.kernel.vmlinux"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; protected: virtual void buildLoader(const Filter *ft); virtual void defineDecompressorSymbols(); virtual Linker* newLinker() const; virtual bool is_valid_e_entry(Addr); virtual bool has_valid_vmlinux_head(); virtual unsigned write_vmlinux_head( OutputFile *const fo, Shdr *const stxt ); }; class PackVmlinuxPPC64LE : public PackVmlinuxBase { typedef PackVmlinuxBase super; public: PackVmlinuxPPC64LE(InputFile *f) : super(f, Ehdr::EM_PPC64, Ehdr::ELFCLASS64, Ehdr::ELFDATA2LSB, "_vmlinux_start") { } virtual int getFormat() const { return UPX_F_VMLINUX_PPC64LE; } virtual const char *getName() const { return "vmlinux/ppc64le"; } virtual const char *getFullName(const options_t *) const { return "powerpc64le-linux.kernel.vmlinux"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; protected: virtual void buildLoader(const Filter *ft); virtual void defineDecompressorSymbols(); virtual Linker* newLinker() const; virtual bool is_valid_e_entry(Addr); virtual bool has_valid_vmlinux_head(); virtual unsigned write_vmlinux_head( OutputFile *const fo, Shdr *const stxt ); }; class PackVmlinuxAMD64 : public PackVmlinuxBase { typedef PackVmlinuxBase super; public: PackVmlinuxAMD64(InputFile *f) : super(f, Ehdr::EM_X86_64, Ehdr::ELFCLASS64, Ehdr::ELFDATA2LSB, "startup_32") { } virtual int getFormat() const { return UPX_F_VMLINUX_AMD64; } virtual const char *getName() const { return "vmlinux/amd64"; } virtual const char *getFullName(const options_t *) const { return "amd64-linux.kernel.vmlinux"; } virtual const int *getCompressionMethods(int method, int level) const; virtual const int *getFilters() const; protected: virtual void buildLoader(const Filter *ft); virtual void defineDecompressorSymbols(); virtual Linker* newLinker() const; virtual bool is_valid_e_entry(Addr); virtual bool has_valid_vmlinux_head(); virtual unsigned write_vmlinux_head( OutputFile *const fo, Shdr *const stxt ); }; #endif /* already included */ /* vim:set ts=4 sw=4 et: */