///////////////////////////////////////////////////////////////////////// // $Id: vmware3.h,v 1.10 2006-04-27 15:11:45 sshwarts Exp $ ///////////////////////////////////////////////////////////////////////// /* * This file provides the interface for using VMWare's virtual * disk image format under Bochs. * * Author: Sharvil Nanavati, for Net Integration Technologies, Inc. * Contact: snrrrub@yahoo.com * * Copyright (C) 2003 Net Integration Technologies, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _COWDISK_H #define _COWDISK_H 1 class vmware3_image_t : public device_image_t { public: vmware3_image_t() : FL_SHIFT(25), FL_MASK(0xFE000000) { }; int open (const char* pathname); void close(); off_t lseek (off_t offset, int whence); ssize_t read (void* buf, size_t count); ssize_t write (const void* buf, size_t count); private: static const off_t INVALID_OFFSET; #if defined(_MSC_VER) && (_MSC_VER<1300) #pragma pack(push, 1) #elif defined(__MWERKS__) && defined(macintosh) #pragma options align=packed #endif typedef #if defined(_MSC_VER) && (_MSC_VER>=1300) __declspec(align(1)) #endif struct _COW_Header { Bit8u id[4]; Bit32u header_version; Bit32u flags; Bit32u total_sectors; Bit32u tlb_size_sectors; Bit32u flb_offset_sectors; Bit32u flb_count; Bit32u next_sector_to_allocate; Bit32u cylinders; Bit32u heads; Bit32u sectors; Bit8u PAD0[1016]; Bit32u last_modified_time; Bit8u PAD1[572]; Bit32u last_modified_time_save; Bit8u label[8]; Bit32u chain_id; Bit32u number_of_chains; Bit32u cylinders_in_disk; Bit32u heads_in_disk; Bit32u sectors_in_disk; Bit32u total_sectors_in_disk; Bit8u PAD2[8]; Bit32u vmware_version; Bit8u PAD3[364]; } #if !defined(_MSC_VER) GCC_ATTRIBUTE((packed)) #endif COW_Header ; #if defined(_MSC_VER) && (_MSC_VER<1300) #pragma pack(pop) #elif defined(__MWERKS__) && defined(macintosh) #pragma options align=reset #endif struct COW_Image; friend struct COW_Image; struct COW_Image { int fd; COW_Header header; Bit32u * flb; Bit32u ** slb; Bit8u * tlb; off_t offset; off_t min_offset; off_t max_offset; bool synced; } * images, * current; int read_header(int fd, COW_Header & header); int write_header(int fd, COW_Header & header); int read_ints(int fd, Bit32u *buffer, size_t count); int write_ints(int fd, Bit32u *buffer, size_t count); char * generate_cow_name(const char * filename, Bit32u chain); bool is_valid_header(COW_Header & header); off_t perform_seek(); bool sync(); const Bit32u FL_SHIFT; const Bit32u FL_MASK; off_t requested_offset; Bit32u slb_count; Bit32u tlb_size; }; #endif