grub/fs/ext2.c

940 lines
25 KiB
C
Raw Normal View History

/* ext2.c - Second Extended filesystem */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2004,2005,2007,2008 Free Software Foundation, Inc.
*
2007-07-22 Yoshinori K. Okuji <okuji@enbug.org> Migrate to GNU General Public License Version 3. * COPYING: Replaced with the plain text version of GPLv3. * config.guess: Updated from gnulib. * config.sub: Likewise. * geninit.sh: Output a GPLv3 copyright notice. * geninitheader.sh: Likewise. * genmodsrc.sh: Likewise. * gensymlist.sh.in: Likewise. * boot/i386/pc/boot.S: Upgraded to GPLv3. * boot/i386/pc/diskboot.S: Likewise. * boot/i386/pc/pxeboot.S: Likewise. * commands/blocklist.c: Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/echo.c: Likewise. * commands/help.c: Likewise. * commands/ls.c: Likewise. * commands/search.c: Likewise. * commands/terminal.c: Likewise. * commands/test.c: Likewise. * commands/videotest.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/play.c: Likewise. * commands/i386/pc/reboot.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/halt.c: Likewise. * commands/ieee1275/reboot.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * disk/loopback.c: Likewise. * disk/lvm.c: Likewise. * disk/raid.c: Likewise. * disk/efi/efidisk.c: Likewise. * disk/i386/pc/biosdisk.c: Likewise. * disk/ieee1275/ofdisk.c: Likewise. * font/manager.c: Likewise. * fs/affs.c: Likewise. * fs/ext2.c: Likewise. * fs/fat.c: Likewise. * fs/fshelp.c: Likewise. * fs/hfs.c: Likewise. * fs/hfsplus.c: Likewise. * fs/iso9660.c: Likewise. * fs/jfs.c: Likewise. * fs/minix.c: Likewise. * fs/sfs.c: Likewise. * fs/ufs.c: Likewise. * fs/xfs.c: Likewise. * hello/hello.c: Likewise. * include/grub/acorn_filecore.h: Likewise. * include/grub/arg.h: Likewise. * include/grub/bitmap.h: Likewise. * include/grub/boot.h: Likewise. * include/grub/cache.h: Likewise. * include/grub/device.h: Likewise. * include/grub/disk.h: Likewise. * include/grub/dl.h: Likewise. * include/grub/elfload.h: Likewise. * include/grub/env.h: Likewise. * include/grub/err.h: Likewise. * include/grub/file.h: Likewise. * include/grub/font.h: Likewise. * include/grub/fs.h: Likewise. * include/grub/fshelp.h: Likewise. * include/grub/gzio.h: Likewise. * include/grub/hfs.h: Likewise. * include/grub/kernel.h: Likewise. * include/grub/loader.h: Likewise. * include/grub/lvm.h: Likewise. * include/grub/misc.h: Likewise. * include/grub/mm.h: Likewise. * include/grub/net.h: Likewise. * include/grub/normal.h: Likewise. * include/grub/parser.h: Likewise. * include/grub/partition.h: Likewise. * include/grub/pc_partition.h: Likewise. * include/grub/raid.h: Likewise. * include/grub/rescue.h: Likewise. * include/grub/script.h: Likewise. * include/grub/setjmp.h: Likewise. * include/grub/symbol.h: Likewise. * include/grub/term.h: Likewise. * include/grub/terminfo.h: Likewise. * include/grub/tparm.h: Likewise. * include/grub/types.h: Likewise. * include/grub/video.h: Likewise. * include/grub/efi/api.h: Likewise. * include/grub/efi/chainloader.h: Likewise. * include/grub/efi/console.h: Likewise. * include/grub/efi/console_control.h: Likewise. * include/grub/efi/disk.h: Likewise. * include/grub/efi/efi.h: Likewise. * include/grub/efi/pe32.h: Likewise. * include/grub/efi/time.h: Likewise. * include/grub/i386/linux.h: Likewise. * include/grub/i386/setjmp.h: Likewise. * include/grub/i386/types.h: Likewise. * include/grub/i386/efi/kernel.h: Likewise. * include/grub/i386/efi/loader.h: Likewise. * include/grub/i386/efi/time.h: Likewise. * include/grub/i386/pc/biosdisk.h: Likewise. * include/grub/i386/pc/boot.h: Likewise. * include/grub/i386/pc/chainloader.h: Likewise. * include/grub/i386/pc/console.h: Likewise. * include/grub/i386/pc/init.h: Likewise. * include/grub/i386/pc/kernel.h: Likewise. * include/grub/i386/pc/loader.h: Likewise. * include/grub/i386/pc/memory.h: Likewise. * include/grub/i386/pc/multiboot.h: Likewise. * include/grub/i386/pc/serial.h: Likewise. * include/grub/i386/pc/time.h: Likewise. * include/grub/i386/pc/vbe.h: Likewise. * include/grub/i386/pc/vbeblit.h: Likewise. * include/grub/i386/pc/vbefill.h: Likewise. * include/grub/i386/pc/vbeutil.h: Likewise. * include/grub/i386/pc/vga.h: Likewise. * include/grub/ieee1275/ieee1275.h: Likewise. * include/grub/ieee1275/ofdisk.h: Likewise. * include/grub/powerpc/libgcc.h: Likewise. * include/grub/powerpc/setjmp.h: Likewise. * include/grub/powerpc/types.h: Likewise. * include/grub/powerpc/ieee1275/biosdisk.h: Likewise. * include/grub/powerpc/ieee1275/console.h: Likewise. * include/grub/powerpc/ieee1275/ieee1275.h: Likewise. * include/grub/powerpc/ieee1275/kernel.h: Likewise. * include/grub/powerpc/ieee1275/loader.h: Likewise. * include/grub/powerpc/ieee1275/multiboot.h: Likewise. * include/grub/powerpc/ieee1275/time.h: Likewise. * include/grub/powerpc/ieee1275/util/biosdisk.h: Likewise. * include/grub/sparc64/libgcc.h: Likewise. * include/grub/sparc64/setjmp.h: Likewise. * include/grub/sparc64/types.h: Likewise. * include/grub/sparc64/ieee1275/console.h: Likewise. * include/grub/sparc64/ieee1275/ieee1275.h: Likewise. * include/grub/sparc64/ieee1275/kernel.h: Likewise. * include/grub/sparc64/ieee1275/time.h: Likewise. * include/grub/util/biosdisk.h: Likewise. * include/grub/util/getroot.h: Likewise. * include/grub/util/lvm.h: Likewise. * include/grub/util/misc.h: Likewise. * include/grub/util/raid.h: Likewise. * include/grub/util/resolve.h: Likewise. * io/gzio.c: Likewise. * kern/device.c: Likewise. * kern/disk.c: Likewise. * kern/dl.c: Likewise. * kern/elf.c: Likewise. * kern/env.c: Likewise. * kern/err.c: Likewise. * kern/file.c: Likewise. * kern/fs.c: Likewise. * kern/loader.c: Likewise. * kern/main.c: Likewise. * kern/misc.c: Likewise. * kern/mm.c: Likewise. * kern/parser.c: Likewise. * kern/partition.c: Likewise. * kern/rescue.c: Likewise. * kern/term.c: Likewise. * kern/efi/efi.c: Likewise. * kern/efi/init.c: Likewise. * kern/efi/mm.c: Likewise. * kern/i386/dl.c: Likewise. * kern/i386/efi/init.c: Likewise. * kern/i386/efi/startup.S: Likewise. * kern/i386/pc/init.c: Likewise. * kern/i386/pc/lzo1x.S: Likewise. * kern/i386/pc/startup.S: Likewise. * kern/ieee1275/ieee1275.c: Likewise. * kern/powerpc/cache.S: Likewise. * kern/powerpc/dl.c: Likewise. * kern/powerpc/ieee1275/cmain.c: Likewise. * kern/powerpc/ieee1275/crt0.S: Likewise. * kern/powerpc/ieee1275/init.c: Likewise. * kern/powerpc/ieee1275/openfw.c: Likewise. * kern/sparc64/cache.S: Likewise. * kern/sparc64/dl.c: Likewise. * kern/sparc64/ieee1275/init.c: Likewise. * kern/sparc64/ieee1275/openfw.c: Likewise. * loader/efi/chainloader.c: Likewise. * loader/efi/chainloader_normal.c: Likewise. * loader/i386/efi/linux.c: Likewise. * loader/i386/efi/linux_normal.c: Likewise. * loader/i386/pc/chainloader.c: Likewise. * loader/i386/pc/chainloader_normal.c: Likewise. * loader/i386/pc/linux.c: Likewise. * loader/i386/pc/linux_normal.c: Likewise. * loader/i386/pc/multiboot.c: Likewise. * loader/i386/pc/multiboot_normal.c: Likewise. * loader/powerpc/ieee1275/linux.c: Likewise. * loader/powerpc/ieee1275/linux_normal.c: Likewise. * normal/arg.c: Likewise. * normal/cmdline.c: Likewise. * normal/command.c: Likewise. * normal/completion.c: Likewise. * normal/execute.c: Likewise. * normal/function.c: Likewise. * normal/lexer.c: Likewise. * normal/main.c: Likewise. * normal/menu.c: Likewise. * normal/menu_entry.c: Likewise. * normal/misc.c: Likewise. * normal/parser.y: Likewise. * normal/script.c: Likewise. * normal/i386/setjmp.S: Likewise. * normal/powerpc/setjmp.S: Likewise. * normal/sparc64/setjmp.S: Likewise. * partmap/acorn.c: Likewise. * partmap/amiga.c: Likewise. * partmap/apple.c: Likewise. * partmap/gpt.c: Likewise. * partmap/pc.c: Likewise. * partmap/sun.c: Likewise. * term/gfxterm.c: Likewise. * term/terminfo.c: Likewise. * term/efi/console.c: Likewise. * term/i386/pc/console.c: Likewise. * term/i386/pc/serial.c: Likewise. * term/i386/pc/vesafb.c: Likewise. * term/i386/pc/vga.c: Likewise. * term/ieee1275/ofconsole.c: Likewise. * util/biosdisk.c: Likewise. * util/console.c: Likewise. * util/genmoddep.c: Likewise. * util/getroot.c: Likewise. * util/grub-emu.c: Likewise. * util/grub-mkdevicemap.c: Likewise. * util/grub-probe.c: Likewise. * util/lvm.c: Likewise. * util/misc.c: Likewise. * util/raid.c: Likewise. * util/resolve.c: Likewise. * util/update-grub.in: Likewise. * util/update-grub_lib.in: Likewise. * util/grub.d/00_header.in: Likewise. * util/grub.d/10_hurd.in: Likewise. * util/grub.d/10_linux.in: Likewise. * util/i386/efi/grub-install.in: Likewise. * util/i386/efi/grub-mkimage.c: Likewise. * util/i386/pc/grub-install.in: Likewise. * util/i386/pc/grub-mkimage.c: Likewise. * util/i386/pc/grub-mkrescue.in: Likewise. * util/i386/pc/grub-setup.c: Likewise. * util/i386/pc/misc.c: Likewise. * util/powerpc/ieee1275/grub-install.in: Likewise. * util/powerpc/ieee1275/grub-mkimage.c: Likewise. * util/powerpc/ieee1275/misc.c: Likewise. * video/bitmap.c: Likewise. * video/video.c: Likewise. * video/i386/pc/vbe.c: Likewise. * video/i386/pc/vbeblit.c: Likewise. * video/i386/pc/vbefill.c: Likewise. * video/i386/pc/vbeutil.c: Likewise. * video/readers/tga.c: Likewise.
2007-07-21 23:32:33 +00:00
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
2007-07-22 Yoshinori K. Okuji <okuji@enbug.org> Migrate to GNU General Public License Version 3. * COPYING: Replaced with the plain text version of GPLv3. * config.guess: Updated from gnulib. * config.sub: Likewise. * geninit.sh: Output a GPLv3 copyright notice. * geninitheader.sh: Likewise. * genmodsrc.sh: Likewise. * gensymlist.sh.in: Likewise. * boot/i386/pc/boot.S: Upgraded to GPLv3. * boot/i386/pc/diskboot.S: Likewise. * boot/i386/pc/pxeboot.S: Likewise. * commands/blocklist.c: Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/echo.c: Likewise. * commands/help.c: Likewise. * commands/ls.c: Likewise. * commands/search.c: Likewise. * commands/terminal.c: Likewise. * commands/test.c: Likewise. * commands/videotest.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/play.c: Likewise. * commands/i386/pc/reboot.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/halt.c: Likewise. * commands/ieee1275/reboot.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * disk/loopback.c: Likewise. * disk/lvm.c: Likewise. * disk/raid.c: Likewise. * disk/efi/efidisk.c: Likewise. * disk/i386/pc/biosdisk.c: Likewise. * disk/ieee1275/ofdisk.c: Likewise. * font/manager.c: Likewise. * fs/affs.c: Likewise. * fs/ext2.c: Likewise. * fs/fat.c: Likewise. * fs/fshelp.c: Likewise. * fs/hfs.c: Likewise. * fs/hfsplus.c: Likewise. * fs/iso9660.c: Likewise. * fs/jfs.c: Likewise. * fs/minix.c: Likewise. * fs/sfs.c: Likewise. * fs/ufs.c: Likewise. * fs/xfs.c: Likewise. * hello/hello.c: Likewise. * include/grub/acorn_filecore.h: Likewise. * include/grub/arg.h: Likewise. * include/grub/bitmap.h: Likewise. * include/grub/boot.h: Likewise. * include/grub/cache.h: Likewise. * include/grub/device.h: Likewise. * include/grub/disk.h: Likewise. * include/grub/dl.h: Likewise. * include/grub/elfload.h: Likewise. * include/grub/env.h: Likewise. * include/grub/err.h: Likewise. * include/grub/file.h: Likewise. * include/grub/font.h: Likewise. * include/grub/fs.h: Likewise. * include/grub/fshelp.h: Likewise. * include/grub/gzio.h: Likewise. * include/grub/hfs.h: Likewise. * include/grub/kernel.h: Likewise. * include/grub/loader.h: Likewise. * include/grub/lvm.h: Likewise. * include/grub/misc.h: Likewise. * include/grub/mm.h: Likewise. * include/grub/net.h: Likewise. * include/grub/normal.h: Likewise. * include/grub/parser.h: Likewise. * include/grub/partition.h: Likewise. * include/grub/pc_partition.h: Likewise. * include/grub/raid.h: Likewise. * include/grub/rescue.h: Likewise. * include/grub/script.h: Likewise. * include/grub/setjmp.h: Likewise. * include/grub/symbol.h: Likewise. * include/grub/term.h: Likewise. * include/grub/terminfo.h: Likewise. * include/grub/tparm.h: Likewise. * include/grub/types.h: Likewise. * include/grub/video.h: Likewise. * include/grub/efi/api.h: Likewise. * include/grub/efi/chainloader.h: Likewise. * include/grub/efi/console.h: Likewise. * include/grub/efi/console_control.h: Likewise. * include/grub/efi/disk.h: Likewise. * include/grub/efi/efi.h: Likewise. * include/grub/efi/pe32.h: Likewise. * include/grub/efi/time.h: Likewise. * include/grub/i386/linux.h: Likewise. * include/grub/i386/setjmp.h: Likewise. * include/grub/i386/types.h: Likewise. * include/grub/i386/efi/kernel.h: Likewise. * include/grub/i386/efi/loader.h: Likewise. * include/grub/i386/efi/time.h: Likewise. * include/grub/i386/pc/biosdisk.h: Likewise. * include/grub/i386/pc/boot.h: Likewise. * include/grub/i386/pc/chainloader.h: Likewise. * include/grub/i386/pc/console.h: Likewise. * include/grub/i386/pc/init.h: Likewise. * include/grub/i386/pc/kernel.h: Likewise. * include/grub/i386/pc/loader.h: Likewise. * include/grub/i386/pc/memory.h: Likewise. * include/grub/i386/pc/multiboot.h: Likewise. * include/grub/i386/pc/serial.h: Likewise. * include/grub/i386/pc/time.h: Likewise. * include/grub/i386/pc/vbe.h: Likewise. * include/grub/i386/pc/vbeblit.h: Likewise. * include/grub/i386/pc/vbefill.h: Likewise. * include/grub/i386/pc/vbeutil.h: Likewise. * include/grub/i386/pc/vga.h: Likewise. * include/grub/ieee1275/ieee1275.h: Likewise. * include/grub/ieee1275/ofdisk.h: Likewise. * include/grub/powerpc/libgcc.h: Likewise. * include/grub/powerpc/setjmp.h: Likewise. * include/grub/powerpc/types.h: Likewise. * include/grub/powerpc/ieee1275/biosdisk.h: Likewise. * include/grub/powerpc/ieee1275/console.h: Likewise. * include/grub/powerpc/ieee1275/ieee1275.h: Likewise. * include/grub/powerpc/ieee1275/kernel.h: Likewise. * include/grub/powerpc/ieee1275/loader.h: Likewise. * include/grub/powerpc/ieee1275/multiboot.h: Likewise. * include/grub/powerpc/ieee1275/time.h: Likewise. * include/grub/powerpc/ieee1275/util/biosdisk.h: Likewise. * include/grub/sparc64/libgcc.h: Likewise. * include/grub/sparc64/setjmp.h: Likewise. * include/grub/sparc64/types.h: Likewise. * include/grub/sparc64/ieee1275/console.h: Likewise. * include/grub/sparc64/ieee1275/ieee1275.h: Likewise. * include/grub/sparc64/ieee1275/kernel.h: Likewise. * include/grub/sparc64/ieee1275/time.h: Likewise. * include/grub/util/biosdisk.h: Likewise. * include/grub/util/getroot.h: Likewise. * include/grub/util/lvm.h: Likewise. * include/grub/util/misc.h: Likewise. * include/grub/util/raid.h: Likewise. * include/grub/util/resolve.h: Likewise. * io/gzio.c: Likewise. * kern/device.c: Likewise. * kern/disk.c: Likewise. * kern/dl.c: Likewise. * kern/elf.c: Likewise. * kern/env.c: Likewise. * kern/err.c: Likewise. * kern/file.c: Likewise. * kern/fs.c: Likewise. * kern/loader.c: Likewise. * kern/main.c: Likewise. * kern/misc.c: Likewise. * kern/mm.c: Likewise. * kern/parser.c: Likewise. * kern/partition.c: Likewise. * kern/rescue.c: Likewise. * kern/term.c: Likewise. * kern/efi/efi.c: Likewise. * kern/efi/init.c: Likewise. * kern/efi/mm.c: Likewise. * kern/i386/dl.c: Likewise. * kern/i386/efi/init.c: Likewise. * kern/i386/efi/startup.S: Likewise. * kern/i386/pc/init.c: Likewise. * kern/i386/pc/lzo1x.S: Likewise. * kern/i386/pc/startup.S: Likewise. * kern/ieee1275/ieee1275.c: Likewise. * kern/powerpc/cache.S: Likewise. * kern/powerpc/dl.c: Likewise. * kern/powerpc/ieee1275/cmain.c: Likewise. * kern/powerpc/ieee1275/crt0.S: Likewise. * kern/powerpc/ieee1275/init.c: Likewise. * kern/powerpc/ieee1275/openfw.c: Likewise. * kern/sparc64/cache.S: Likewise. * kern/sparc64/dl.c: Likewise. * kern/sparc64/ieee1275/init.c: Likewise. * kern/sparc64/ieee1275/openfw.c: Likewise. * loader/efi/chainloader.c: Likewise. * loader/efi/chainloader_normal.c: Likewise. * loader/i386/efi/linux.c: Likewise. * loader/i386/efi/linux_normal.c: Likewise. * loader/i386/pc/chainloader.c: Likewise. * loader/i386/pc/chainloader_normal.c: Likewise. * loader/i386/pc/linux.c: Likewise. * loader/i386/pc/linux_normal.c: Likewise. * loader/i386/pc/multiboot.c: Likewise. * loader/i386/pc/multiboot_normal.c: Likewise. * loader/powerpc/ieee1275/linux.c: Likewise. * loader/powerpc/ieee1275/linux_normal.c: Likewise. * normal/arg.c: Likewise. * normal/cmdline.c: Likewise. * normal/command.c: Likewise. * normal/completion.c: Likewise. * normal/execute.c: Likewise. * normal/function.c: Likewise. * normal/lexer.c: Likewise. * normal/main.c: Likewise. * normal/menu.c: Likewise. * normal/menu_entry.c: Likewise. * normal/misc.c: Likewise. * normal/parser.y: Likewise. * normal/script.c: Likewise. * normal/i386/setjmp.S: Likewise. * normal/powerpc/setjmp.S: Likewise. * normal/sparc64/setjmp.S: Likewise. * partmap/acorn.c: Likewise. * partmap/amiga.c: Likewise. * partmap/apple.c: Likewise. * partmap/gpt.c: Likewise. * partmap/pc.c: Likewise. * partmap/sun.c: Likewise. * term/gfxterm.c: Likewise. * term/terminfo.c: Likewise. * term/efi/console.c: Likewise. * term/i386/pc/console.c: Likewise. * term/i386/pc/serial.c: Likewise. * term/i386/pc/vesafb.c: Likewise. * term/i386/pc/vga.c: Likewise. * term/ieee1275/ofconsole.c: Likewise. * util/biosdisk.c: Likewise. * util/console.c: Likewise. * util/genmoddep.c: Likewise. * util/getroot.c: Likewise. * util/grub-emu.c: Likewise. * util/grub-mkdevicemap.c: Likewise. * util/grub-probe.c: Likewise. * util/lvm.c: Likewise. * util/misc.c: Likewise. * util/raid.c: Likewise. * util/resolve.c: Likewise. * util/update-grub.in: Likewise. * util/update-grub_lib.in: Likewise. * util/grub.d/00_header.in: Likewise. * util/grub.d/10_hurd.in: Likewise. * util/grub.d/10_linux.in: Likewise. * util/i386/efi/grub-install.in: Likewise. * util/i386/efi/grub-mkimage.c: Likewise. * util/i386/pc/grub-install.in: Likewise. * util/i386/pc/grub-mkimage.c: Likewise. * util/i386/pc/grub-mkrescue.in: Likewise. * util/i386/pc/grub-setup.c: Likewise. * util/i386/pc/misc.c: Likewise. * util/powerpc/ieee1275/grub-install.in: Likewise. * util/powerpc/ieee1275/grub-mkimage.c: Likewise. * util/powerpc/ieee1275/misc.c: Likewise. * video/bitmap.c: Likewise. * video/video.c: Likewise. * video/i386/pc/vbe.c: Likewise. * video/i386/pc/vbeblit.c: Likewise. * video/i386/pc/vbefill.c: Likewise. * video/i386/pc/vbeutil.c: Likewise. * video/readers/tga.c: Likewise.
2007-07-21 23:32:33 +00:00
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
2007-07-22 Yoshinori K. Okuji <okuji@enbug.org> Migrate to GNU General Public License Version 3. * COPYING: Replaced with the plain text version of GPLv3. * config.guess: Updated from gnulib. * config.sub: Likewise. * geninit.sh: Output a GPLv3 copyright notice. * geninitheader.sh: Likewise. * genmodsrc.sh: Likewise. * gensymlist.sh.in: Likewise. * boot/i386/pc/boot.S: Upgraded to GPLv3. * boot/i386/pc/diskboot.S: Likewise. * boot/i386/pc/pxeboot.S: Likewise. * commands/blocklist.c: Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/echo.c: Likewise. * commands/help.c: Likewise. * commands/ls.c: Likewise. * commands/search.c: Likewise. * commands/terminal.c: Likewise. * commands/test.c: Likewise. * commands/videotest.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/play.c: Likewise. * commands/i386/pc/reboot.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/halt.c: Likewise. * commands/ieee1275/reboot.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * disk/loopback.c: Likewise. * disk/lvm.c: Likewise. * disk/raid.c: Likewise. * disk/efi/efidisk.c: Likewise. * disk/i386/pc/biosdisk.c: Likewise. * disk/ieee1275/ofdisk.c: Likewise. * font/manager.c: Likewise. * fs/affs.c: Likewise. * fs/ext2.c: Likewise. * fs/fat.c: Likewise. * fs/fshelp.c: Likewise. * fs/hfs.c: Likewise. * fs/hfsplus.c: Likewise. * fs/iso9660.c: Likewise. * fs/jfs.c: Likewise. * fs/minix.c: Likewise. * fs/sfs.c: Likewise. * fs/ufs.c: Likewise. * fs/xfs.c: Likewise. * hello/hello.c: Likewise. * include/grub/acorn_filecore.h: Likewise. * include/grub/arg.h: Likewise. * include/grub/bitmap.h: Likewise. * include/grub/boot.h: Likewise. * include/grub/cache.h: Likewise. * include/grub/device.h: Likewise. * include/grub/disk.h: Likewise. * include/grub/dl.h: Likewise. * include/grub/elfload.h: Likewise. * include/grub/env.h: Likewise. * include/grub/err.h: Likewise. * include/grub/file.h: Likewise. * include/grub/font.h: Likewise. * include/grub/fs.h: Likewise. * include/grub/fshelp.h: Likewise. * include/grub/gzio.h: Likewise. * include/grub/hfs.h: Likewise. * include/grub/kernel.h: Likewise. * include/grub/loader.h: Likewise. * include/grub/lvm.h: Likewise. * include/grub/misc.h: Likewise. * include/grub/mm.h: Likewise. * include/grub/net.h: Likewise. * include/grub/normal.h: Likewise. * include/grub/parser.h: Likewise. * include/grub/partition.h: Likewise. * include/grub/pc_partition.h: Likewise. * include/grub/raid.h: Likewise. * include/grub/rescue.h: Likewise. * include/grub/script.h: Likewise. * include/grub/setjmp.h: Likewise. * include/grub/symbol.h: Likewise. * include/grub/term.h: Likewise. * include/grub/terminfo.h: Likewise. * include/grub/tparm.h: Likewise. * include/grub/types.h: Likewise. * include/grub/video.h: Likewise. * include/grub/efi/api.h: Likewise. * include/grub/efi/chainloader.h: Likewise. * include/grub/efi/console.h: Likewise. * include/grub/efi/console_control.h: Likewise. * include/grub/efi/disk.h: Likewise. * include/grub/efi/efi.h: Likewise. * include/grub/efi/pe32.h: Likewise. * include/grub/efi/time.h: Likewise. * include/grub/i386/linux.h: Likewise. * include/grub/i386/setjmp.h: Likewise. * include/grub/i386/types.h: Likewise. * include/grub/i386/efi/kernel.h: Likewise. * include/grub/i386/efi/loader.h: Likewise. * include/grub/i386/efi/time.h: Likewise. * include/grub/i386/pc/biosdisk.h: Likewise. * include/grub/i386/pc/boot.h: Likewise. * include/grub/i386/pc/chainloader.h: Likewise. * include/grub/i386/pc/console.h: Likewise. * include/grub/i386/pc/init.h: Likewise. * include/grub/i386/pc/kernel.h: Likewise. * include/grub/i386/pc/loader.h: Likewise. * include/grub/i386/pc/memory.h: Likewise. * include/grub/i386/pc/multiboot.h: Likewise. * include/grub/i386/pc/serial.h: Likewise. * include/grub/i386/pc/time.h: Likewise. * include/grub/i386/pc/vbe.h: Likewise. * include/grub/i386/pc/vbeblit.h: Likewise. * include/grub/i386/pc/vbefill.h: Likewise. * include/grub/i386/pc/vbeutil.h: Likewise. * include/grub/i386/pc/vga.h: Likewise. * include/grub/ieee1275/ieee1275.h: Likewise. * include/grub/ieee1275/ofdisk.h: Likewise. * include/grub/powerpc/libgcc.h: Likewise. * include/grub/powerpc/setjmp.h: Likewise. * include/grub/powerpc/types.h: Likewise. * include/grub/powerpc/ieee1275/biosdisk.h: Likewise. * include/grub/powerpc/ieee1275/console.h: Likewise. * include/grub/powerpc/ieee1275/ieee1275.h: Likewise. * include/grub/powerpc/ieee1275/kernel.h: Likewise. * include/grub/powerpc/ieee1275/loader.h: Likewise. * include/grub/powerpc/ieee1275/multiboot.h: Likewise. * include/grub/powerpc/ieee1275/time.h: Likewise. * include/grub/powerpc/ieee1275/util/biosdisk.h: Likewise. * include/grub/sparc64/libgcc.h: Likewise. * include/grub/sparc64/setjmp.h: Likewise. * include/grub/sparc64/types.h: Likewise. * include/grub/sparc64/ieee1275/console.h: Likewise. * include/grub/sparc64/ieee1275/ieee1275.h: Likewise. * include/grub/sparc64/ieee1275/kernel.h: Likewise. * include/grub/sparc64/ieee1275/time.h: Likewise. * include/grub/util/biosdisk.h: Likewise. * include/grub/util/getroot.h: Likewise. * include/grub/util/lvm.h: Likewise. * include/grub/util/misc.h: Likewise. * include/grub/util/raid.h: Likewise. * include/grub/util/resolve.h: Likewise. * io/gzio.c: Likewise. * kern/device.c: Likewise. * kern/disk.c: Likewise. * kern/dl.c: Likewise. * kern/elf.c: Likewise. * kern/env.c: Likewise. * kern/err.c: Likewise. * kern/file.c: Likewise. * kern/fs.c: Likewise. * kern/loader.c: Likewise. * kern/main.c: Likewise. * kern/misc.c: Likewise. * kern/mm.c: Likewise. * kern/parser.c: Likewise. * kern/partition.c: Likewise. * kern/rescue.c: Likewise. * kern/term.c: Likewise. * kern/efi/efi.c: Likewise. * kern/efi/init.c: Likewise. * kern/efi/mm.c: Likewise. * kern/i386/dl.c: Likewise. * kern/i386/efi/init.c: Likewise. * kern/i386/efi/startup.S: Likewise. * kern/i386/pc/init.c: Likewise. * kern/i386/pc/lzo1x.S: Likewise. * kern/i386/pc/startup.S: Likewise. * kern/ieee1275/ieee1275.c: Likewise. * kern/powerpc/cache.S: Likewise. * kern/powerpc/dl.c: Likewise. * kern/powerpc/ieee1275/cmain.c: Likewise. * kern/powerpc/ieee1275/crt0.S: Likewise. * kern/powerpc/ieee1275/init.c: Likewise. * kern/powerpc/ieee1275/openfw.c: Likewise. * kern/sparc64/cache.S: Likewise. * kern/sparc64/dl.c: Likewise. * kern/sparc64/ieee1275/init.c: Likewise. * kern/sparc64/ieee1275/openfw.c: Likewise. * loader/efi/chainloader.c: Likewise. * loader/efi/chainloader_normal.c: Likewise. * loader/i386/efi/linux.c: Likewise. * loader/i386/efi/linux_normal.c: Likewise. * loader/i386/pc/chainloader.c: Likewise. * loader/i386/pc/chainloader_normal.c: Likewise. * loader/i386/pc/linux.c: Likewise. * loader/i386/pc/linux_normal.c: Likewise. * loader/i386/pc/multiboot.c: Likewise. * loader/i386/pc/multiboot_normal.c: Likewise. * loader/powerpc/ieee1275/linux.c: Likewise. * loader/powerpc/ieee1275/linux_normal.c: Likewise. * normal/arg.c: Likewise. * normal/cmdline.c: Likewise. * normal/command.c: Likewise. * normal/completion.c: Likewise. * normal/execute.c: Likewise. * normal/function.c: Likewise. * normal/lexer.c: Likewise. * normal/main.c: Likewise. * normal/menu.c: Likewise. * normal/menu_entry.c: Likewise. * normal/misc.c: Likewise. * normal/parser.y: Likewise. * normal/script.c: Likewise. * normal/i386/setjmp.S: Likewise. * normal/powerpc/setjmp.S: Likewise. * normal/sparc64/setjmp.S: Likewise. * partmap/acorn.c: Likewise. * partmap/amiga.c: Likewise. * partmap/apple.c: Likewise. * partmap/gpt.c: Likewise. * partmap/pc.c: Likewise. * partmap/sun.c: Likewise. * term/gfxterm.c: Likewise. * term/terminfo.c: Likewise. * term/efi/console.c: Likewise. * term/i386/pc/console.c: Likewise. * term/i386/pc/serial.c: Likewise. * term/i386/pc/vesafb.c: Likewise. * term/i386/pc/vga.c: Likewise. * term/ieee1275/ofconsole.c: Likewise. * util/biosdisk.c: Likewise. * util/console.c: Likewise. * util/genmoddep.c: Likewise. * util/getroot.c: Likewise. * util/grub-emu.c: Likewise. * util/grub-mkdevicemap.c: Likewise. * util/grub-probe.c: Likewise. * util/lvm.c: Likewise. * util/misc.c: Likewise. * util/raid.c: Likewise. * util/resolve.c: Likewise. * util/update-grub.in: Likewise. * util/update-grub_lib.in: Likewise. * util/grub.d/00_header.in: Likewise. * util/grub.d/10_hurd.in: Likewise. * util/grub.d/10_linux.in: Likewise. * util/i386/efi/grub-install.in: Likewise. * util/i386/efi/grub-mkimage.c: Likewise. * util/i386/pc/grub-install.in: Likewise. * util/i386/pc/grub-mkimage.c: Likewise. * util/i386/pc/grub-mkrescue.in: Likewise. * util/i386/pc/grub-setup.c: Likewise. * util/i386/pc/misc.c: Likewise. * util/powerpc/ieee1275/grub-install.in: Likewise. * util/powerpc/ieee1275/grub-mkimage.c: Likewise. * util/powerpc/ieee1275/misc.c: Likewise. * video/bitmap.c: Likewise. * video/video.c: Likewise. * video/i386/pc/vbe.c: Likewise. * video/i386/pc/vbeblit.c: Likewise. * video/i386/pc/vbefill.c: Likewise. * video/i386/pc/vbeutil.c: Likewise. * video/readers/tga.c: Likewise.
2007-07-21 23:32:33 +00:00
* GRUB 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
2007-07-22 Yoshinori K. Okuji <okuji@enbug.org> Migrate to GNU General Public License Version 3. * COPYING: Replaced with the plain text version of GPLv3. * config.guess: Updated from gnulib. * config.sub: Likewise. * geninit.sh: Output a GPLv3 copyright notice. * geninitheader.sh: Likewise. * genmodsrc.sh: Likewise. * gensymlist.sh.in: Likewise. * boot/i386/pc/boot.S: Upgraded to GPLv3. * boot/i386/pc/diskboot.S: Likewise. * boot/i386/pc/pxeboot.S: Likewise. * commands/blocklist.c: Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/echo.c: Likewise. * commands/help.c: Likewise. * commands/ls.c: Likewise. * commands/search.c: Likewise. * commands/terminal.c: Likewise. * commands/test.c: Likewise. * commands/videotest.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/play.c: Likewise. * commands/i386/pc/reboot.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/halt.c: Likewise. * commands/ieee1275/reboot.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * disk/loopback.c: Likewise. * disk/lvm.c: Likewise. * disk/raid.c: Likewise. * disk/efi/efidisk.c: Likewise. * disk/i386/pc/biosdisk.c: Likewise. * disk/ieee1275/ofdisk.c: Likewise. * font/manager.c: Likewise. * fs/affs.c: Likewise. * fs/ext2.c: Likewise. * fs/fat.c: Likewise. * fs/fshelp.c: Likewise. * fs/hfs.c: Likewise. * fs/hfsplus.c: Likewise. * fs/iso9660.c: Likewise. * fs/jfs.c: Likewise. * fs/minix.c: Likewise. * fs/sfs.c: Likewise. * fs/ufs.c: Likewise. * fs/xfs.c: Likewise. * hello/hello.c: Likewise. * include/grub/acorn_filecore.h: Likewise. * include/grub/arg.h: Likewise. * include/grub/bitmap.h: Likewise. * include/grub/boot.h: Likewise. * include/grub/cache.h: Likewise. * include/grub/device.h: Likewise. * include/grub/disk.h: Likewise. * include/grub/dl.h: Likewise. * include/grub/elfload.h: Likewise. * include/grub/env.h: Likewise. * include/grub/err.h: Likewise. * include/grub/file.h: Likewise. * include/grub/font.h: Likewise. * include/grub/fs.h: Likewise. * include/grub/fshelp.h: Likewise. * include/grub/gzio.h: Likewise. * include/grub/hfs.h: Likewise. * include/grub/kernel.h: Likewise. * include/grub/loader.h: Likewise. * include/grub/lvm.h: Likewise. * include/grub/misc.h: Likewise. * include/grub/mm.h: Likewise. * include/grub/net.h: Likewise. * include/grub/normal.h: Likewise. * include/grub/parser.h: Likewise. * include/grub/partition.h: Likewise. * include/grub/pc_partition.h: Likewise. * include/grub/raid.h: Likewise. * include/grub/rescue.h: Likewise. * include/grub/script.h: Likewise. * include/grub/setjmp.h: Likewise. * include/grub/symbol.h: Likewise. * include/grub/term.h: Likewise. * include/grub/terminfo.h: Likewise. * include/grub/tparm.h: Likewise. * include/grub/types.h: Likewise. * include/grub/video.h: Likewise. * include/grub/efi/api.h: Likewise. * include/grub/efi/chainloader.h: Likewise. * include/grub/efi/console.h: Likewise. * include/grub/efi/console_control.h: Likewise. * include/grub/efi/disk.h: Likewise. * include/grub/efi/efi.h: Likewise. * include/grub/efi/pe32.h: Likewise. * include/grub/efi/time.h: Likewise. * include/grub/i386/linux.h: Likewise. * include/grub/i386/setjmp.h: Likewise. * include/grub/i386/types.h: Likewise. * include/grub/i386/efi/kernel.h: Likewise. * include/grub/i386/efi/loader.h: Likewise. * include/grub/i386/efi/time.h: Likewise. * include/grub/i386/pc/biosdisk.h: Likewise. * include/grub/i386/pc/boot.h: Likewise. * include/grub/i386/pc/chainloader.h: Likewise. * include/grub/i386/pc/console.h: Likewise. * include/grub/i386/pc/init.h: Likewise. * include/grub/i386/pc/kernel.h: Likewise. * include/grub/i386/pc/loader.h: Likewise. * include/grub/i386/pc/memory.h: Likewise. * include/grub/i386/pc/multiboot.h: Likewise. * include/grub/i386/pc/serial.h: Likewise. * include/grub/i386/pc/time.h: Likewise. * include/grub/i386/pc/vbe.h: Likewise. * include/grub/i386/pc/vbeblit.h: Likewise. * include/grub/i386/pc/vbefill.h: Likewise. * include/grub/i386/pc/vbeutil.h: Likewise. * include/grub/i386/pc/vga.h: Likewise. * include/grub/ieee1275/ieee1275.h: Likewise. * include/grub/ieee1275/ofdisk.h: Likewise. * include/grub/powerpc/libgcc.h: Likewise. * include/grub/powerpc/setjmp.h: Likewise. * include/grub/powerpc/types.h: Likewise. * include/grub/powerpc/ieee1275/biosdisk.h: Likewise. * include/grub/powerpc/ieee1275/console.h: Likewise. * include/grub/powerpc/ieee1275/ieee1275.h: Likewise. * include/grub/powerpc/ieee1275/kernel.h: Likewise. * include/grub/powerpc/ieee1275/loader.h: Likewise. * include/grub/powerpc/ieee1275/multiboot.h: Likewise. * include/grub/powerpc/ieee1275/time.h: Likewise. * include/grub/powerpc/ieee1275/util/biosdisk.h: Likewise. * include/grub/sparc64/libgcc.h: Likewise. * include/grub/sparc64/setjmp.h: Likewise. * include/grub/sparc64/types.h: Likewise. * include/grub/sparc64/ieee1275/console.h: Likewise. * include/grub/sparc64/ieee1275/ieee1275.h: Likewise. * include/grub/sparc64/ieee1275/kernel.h: Likewise. * include/grub/sparc64/ieee1275/time.h: Likewise. * include/grub/util/biosdisk.h: Likewise. * include/grub/util/getroot.h: Likewise. * include/grub/util/lvm.h: Likewise. * include/grub/util/misc.h: Likewise. * include/grub/util/raid.h: Likewise. * include/grub/util/resolve.h: Likewise. * io/gzio.c: Likewise. * kern/device.c: Likewise. * kern/disk.c: Likewise. * kern/dl.c: Likewise. * kern/elf.c: Likewise. * kern/env.c: Likewise. * kern/err.c: Likewise. * kern/file.c: Likewise. * kern/fs.c: Likewise. * kern/loader.c: Likewise. * kern/main.c: Likewise. * kern/misc.c: Likewise. * kern/mm.c: Likewise. * kern/parser.c: Likewise. * kern/partition.c: Likewise. * kern/rescue.c: Likewise. * kern/term.c: Likewise. * kern/efi/efi.c: Likewise. * kern/efi/init.c: Likewise. * kern/efi/mm.c: Likewise. * kern/i386/dl.c: Likewise. * kern/i386/efi/init.c: Likewise. * kern/i386/efi/startup.S: Likewise. * kern/i386/pc/init.c: Likewise. * kern/i386/pc/lzo1x.S: Likewise. * kern/i386/pc/startup.S: Likewise. * kern/ieee1275/ieee1275.c: Likewise. * kern/powerpc/cache.S: Likewise. * kern/powerpc/dl.c: Likewise. * kern/powerpc/ieee1275/cmain.c: Likewise. * kern/powerpc/ieee1275/crt0.S: Likewise. * kern/powerpc/ieee1275/init.c: Likewise. * kern/powerpc/ieee1275/openfw.c: Likewise. * kern/sparc64/cache.S: Likewise. * kern/sparc64/dl.c: Likewise. * kern/sparc64/ieee1275/init.c: Likewise. * kern/sparc64/ieee1275/openfw.c: Likewise. * loader/efi/chainloader.c: Likewise. * loader/efi/chainloader_normal.c: Likewise. * loader/i386/efi/linux.c: Likewise. * loader/i386/efi/linux_normal.c: Likewise. * loader/i386/pc/chainloader.c: Likewise. * loader/i386/pc/chainloader_normal.c: Likewise. * loader/i386/pc/linux.c: Likewise. * loader/i386/pc/linux_normal.c: Likewise. * loader/i386/pc/multiboot.c: Likewise. * loader/i386/pc/multiboot_normal.c: Likewise. * loader/powerpc/ieee1275/linux.c: Likewise. * loader/powerpc/ieee1275/linux_normal.c: Likewise. * normal/arg.c: Likewise. * normal/cmdline.c: Likewise. * normal/command.c: Likewise. * normal/completion.c: Likewise. * normal/execute.c: Likewise. * normal/function.c: Likewise. * normal/lexer.c: Likewise. * normal/main.c: Likewise. * normal/menu.c: Likewise. * normal/menu_entry.c: Likewise. * normal/misc.c: Likewise. * normal/parser.y: Likewise. * normal/script.c: Likewise. * normal/i386/setjmp.S: Likewise. * normal/powerpc/setjmp.S: Likewise. * normal/sparc64/setjmp.S: Likewise. * partmap/acorn.c: Likewise. * partmap/amiga.c: Likewise. * partmap/apple.c: Likewise. * partmap/gpt.c: Likewise. * partmap/pc.c: Likewise. * partmap/sun.c: Likewise. * term/gfxterm.c: Likewise. * term/terminfo.c: Likewise. * term/efi/console.c: Likewise. * term/i386/pc/console.c: Likewise. * term/i386/pc/serial.c: Likewise. * term/i386/pc/vesafb.c: Likewise. * term/i386/pc/vga.c: Likewise. * term/ieee1275/ofconsole.c: Likewise. * util/biosdisk.c: Likewise. * util/console.c: Likewise. * util/genmoddep.c: Likewise. * util/getroot.c: Likewise. * util/grub-emu.c: Likewise. * util/grub-mkdevicemap.c: Likewise. * util/grub-probe.c: Likewise. * util/lvm.c: Likewise. * util/misc.c: Likewise. * util/raid.c: Likewise. * util/resolve.c: Likewise. * util/update-grub.in: Likewise. * util/update-grub_lib.in: Likewise. * util/grub.d/00_header.in: Likewise. * util/grub.d/10_hurd.in: Likewise. * util/grub.d/10_linux.in: Likewise. * util/i386/efi/grub-install.in: Likewise. * util/i386/efi/grub-mkimage.c: Likewise. * util/i386/pc/grub-install.in: Likewise. * util/i386/pc/grub-mkimage.c: Likewise. * util/i386/pc/grub-mkrescue.in: Likewise. * util/i386/pc/grub-setup.c: Likewise. * util/i386/pc/misc.c: Likewise. * util/powerpc/ieee1275/grub-install.in: Likewise. * util/powerpc/ieee1275/grub-mkimage.c: Likewise. * util/powerpc/ieee1275/misc.c: Likewise. * video/bitmap.c: Likewise. * video/video.c: Likewise. * video/i386/pc/vbe.c: Likewise. * video/i386/pc/vbeblit.c: Likewise. * video/i386/pc/vbefill.c: Likewise. * video/i386/pc/vbeutil.c: Likewise. * video/readers/tga.c: Likewise.
2007-07-21 23:32:33 +00:00
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
/* Magic value used to identify an ext2 filesystem. */
#define EXT2_MAGIC 0xEF53
/* Amount of indirect blocks in an inode. */
#define INDIRECT_BLOCKS 12
/* Maximum length of a pathname. */
#define EXT2_PATH_MAX 4096
/* Maximum nesting of symlinks, used to prevent a loop. */
#define EXT2_MAX_SYMLINKCNT 8
/* The good old revision and the default inode size. */
#define EXT2_GOOD_OLD_REVISION 0
#define EXT2_GOOD_OLD_INODE_SIZE 128
/* Filetype used in directory entry. */
#define FILETYPE_UNKNOWN 0
#define FILETYPE_REG 1
#define FILETYPE_DIRECTORY 2
#define FILETYPE_SYMLINK 7
/* Filetype information as used in inodes. */
#define FILETYPE_INO_MASK 0170000
#define FILETYPE_INO_REG 0100000
#define FILETYPE_INO_DIRECTORY 0040000
#define FILETYPE_INO_SYMLINK 0120000
#include <grub/err.h>
#include <grub/file.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/disk.h>
#include <grub/dl.h>
#include <grub/types.h>
#include <grub/fshelp.h>
/* Log2 size of ext2 block in 512 blocks. */
#define LOG2_EXT2_BLOCK_SIZE(data) \
(grub_le_to_cpu32 (data->sblock.log2_block_size) + 1)
/* Log2 size of ext2 block in bytes. */
#define LOG2_BLOCK_SIZE(data) \
(grub_le_to_cpu32 (data->sblock.log2_block_size) + 10)
/* The size of an ext2 block in bytes. */
#define EXT2_BLOCK_SIZE(data) (1 << LOG2_BLOCK_SIZE (data))
/* The revision level. */
#define EXT2_REVISION(data) grub_le_to_cpu32 (data->sblock.revision_level)
/* The inode size. */
#define EXT2_INODE_SIZE(data) \
(EXT2_REVISION (data) == EXT2_GOOD_OLD_REVISION \
? EXT2_GOOD_OLD_INODE_SIZE \
: grub_le_to_cpu16 (data->sblock.inode_size))
/* Superblock filesystem feature flags (RW compatible)
* A filesystem with any of these enabled can be read and written by a driver
* that does not understand them without causing metadata/data corruption. */
#define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001
#define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
#define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008
#define EXT2_FEATURE_COMPAT_RESIZE_INODE 0x0010
#define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020
/* Superblock filesystem feature flags (RO compatible)
* A filesystem with any of these enabled can be safely read by a driver that
* does not understand them, but should not be written to, usually because
* additional metadata is required. */
#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
#define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040
/* Superblock filesystem feature flags (back-incompatible)
* A filesystem with any of these enabled should not be attempted to be read
* by a driver that does not understand them, since they usually indicate
* metadata format changes that might confuse the reader. */
#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Volume is journal device */
#define EXT2_FEATURE_INCOMPAT_META_BG 0x0010
#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 /* Extents used */
#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080
#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200
/* The set of back-incompatible features this driver DOES support. Add (OR)
* flags here as the related features are implemented into the driver. */
#define EXT2_DRIVER_SUPPORTED_INCOMPAT ( EXT2_FEATURE_INCOMPAT_FILETYPE \
| EXT4_FEATURE_INCOMPAT_EXTENTS \
| EXT4_FEATURE_INCOMPAT_FLEX_BG )
/* List of rationales for the ignored "incompatible" features:
* needs_recovery: Not really back-incompatible - was added as such to forbid
* ext2 drivers from mounting an ext3 volume with a dirty
* journal because they will ignore the journal, but the next
* ext3 driver to mount the volume will find the journal and
* replay it, potentially corrupting the metadata written by
* the ext2 drivers. Safe to ignore for this RO driver. */
#define EXT2_DRIVER_IGNORED_INCOMPAT ( EXT3_FEATURE_INCOMPAT_RECOVER )
2008-05-20 Bean <bean123ch@gmail.com> * fs/fshelp.c (grub_fshelp_map_block): New function. (grub_fshelp_find_file): Use 64-bit type for pos and block address. Use `>>' and `&' operator to avoid 64-bit divide and modulo. * include/grub/fshelp.h (grub_fshelp_journal_type): New enum. (GRUB_FSHELP_JOURNAL_UNUSED_MAPPING): New macro. (grub_fshelp_journal): New structure. (grub_fshelp_map_block): New function prototype. (grub_fshelp_read_file): Use grub_disk_addr_t as block type. (grub_fshelp_map_block): Likewise. * fs/ext2.c (EXT3_FEATURE_COMPAT_HAS_JOURNAL): New macro. (EXT3_JOURNAL_MAGIC_NUMBER): Likewise. (EXT3_JOURNAL_DESCRIPTOR_BLOCK): Likewise. (EXT3_JOURNAL_COMMIT_BLOCK): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V1): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V2): Likewise. (EXT3_JOURNAL_REVOKE_BLOCK): Likewise. (EXT3_JOURNAL_FLAG_ESCAPE): Likewise. (EXT3_JOURNAL_FLAG_SAME_UUID): Likewise. (EXT3_JOURNAL_FLAG_DELETED): Likewise. (EXT3_JOURNAL_FLAG_LAST_TAG): Likewise. (grub_ext2_sblock): New members for journal support. (grub_ext3_journal_header): New structure. (grub_ext3_journal_revoke_header): Likewise. (grub_ext3_journal_block_tag): Likewise. (grub_ext3_journal_sblock): Likewise. (grub_fshelp_node): New members logfile and journal. (grub_ext2_read_block): Change block type to grub_disk_addr_t. Use grub_fshelp_map_block to get real block number. (grub_ext2_blockgroup): Use grub_fshelp_map_block to get real block number. (grub_ext2_read_inode): Likewise. (grub_ext3_get_journal): New function. (grub_read_inode): Initialize journal using grub_ext3_get_journal. (grub_ext2_close): Release memory used by journal. * fs/reiserfs.c (REISERFS_MAGIC_STRING): Changed to "ReIsEr". (REISERFS_MAGIC_DESC_BLOCK): New macro. (grub_reiserfs_transaction_header): Renamed to grub_reiserfs_description_block, replace field data with real_blocks. (grub_reiserfs_commit_block): New structure. (grub_reiserfs_data): New member journal. (grub_reiserfs_get_item): Use grub_fshelp_map_block to get real block number. (grub_reiserfs_read_symlink): Likewise. (grub_reiserfs_iterate_dir): Likewise. (grub_reiserfs_open): Likewise. (grub_reiserfs_read): Likewise. (grub_reiserfs_get_journal): New function. (grub_reiserfs_mount): Use "ReIsEr" as super block magic, as there are three varieties ReIsErFs, ReIsEr2Fs and ReIsEr3Fs. Initialize journal using grub_reiserfs_get_journal. (grub_reiserfs_close): Release memory used by journal. * fs/affs.c (grub_affs_read_block): Change block type to grub_disk_addr_t. Use grub_divmod64 to do 64-bit division. * fs/afs.c (grub_afs_read_block): Change block type to grub_disk_addr_t. * fs/hfsplus.c (grub_hfsplus_read_block): Likewise. * fs/ntfs.c (grub_ntfs_read_block): Likewise. * fs/udf.c (grub_udf_read_block): Change block type to grub_disk_addr_t. Use type cast to avoid warning. * fs/xfs.c (grub_xfs_read_block): Likewise.
2008-05-20 05:00:53 +00:00
#define EXT3_JOURNAL_MAGIC_NUMBER 0xc03b3998U
#define EXT3_JOURNAL_DESCRIPTOR_BLOCK 1
#define EXT3_JOURNAL_COMMIT_BLOCK 2
#define EXT3_JOURNAL_SUPERBLOCK_V1 3
#define EXT3_JOURNAL_SUPERBLOCK_V2 4
#define EXT3_JOURNAL_REVOKE_BLOCK 5
#define EXT3_JOURNAL_FLAG_ESCAPE 1
#define EXT3_JOURNAL_FLAG_SAME_UUID 2
#define EXT3_JOURNAL_FLAG_DELETED 4
#define EXT3_JOURNAL_FLAG_LAST_TAG 8
#define EXT4_EXTENTS_FLAG 0x80000
/* The ext2 superblock. */
struct grub_ext2_sblock
{
grub_uint32_t total_inodes;
grub_uint32_t total_blocks;
grub_uint32_t reserved_blocks;
grub_uint32_t free_blocks;
grub_uint32_t free_inodes;
grub_uint32_t first_data_block;
grub_uint32_t log2_block_size;
grub_uint32_t log2_fragment_size;
grub_uint32_t blocks_per_group;
grub_uint32_t fragments_per_group;
grub_uint32_t inodes_per_group;
grub_uint32_t mtime;
grub_uint32_t utime;
grub_uint16_t mnt_count;
grub_uint16_t max_mnt_count;
grub_uint16_t magic;
grub_uint16_t fs_state;
grub_uint16_t error_handling;
grub_uint16_t minor_revision_level;
grub_uint32_t lastcheck;
grub_uint32_t checkinterval;
grub_uint32_t creator_os;
grub_uint32_t revision_level;
grub_uint16_t uid_reserved;
grub_uint16_t gid_reserved;
grub_uint32_t first_inode;
grub_uint16_t inode_size;
grub_uint16_t block_group_number;
grub_uint32_t feature_compatibility;
grub_uint32_t feature_incompat;
grub_uint32_t feature_ro_compat;
grub_uint16_t uuid[8];
char volume_name[16];
char last_mounted_on[64];
grub_uint32_t compression_info;
2008-05-20 Bean <bean123ch@gmail.com> * fs/fshelp.c (grub_fshelp_map_block): New function. (grub_fshelp_find_file): Use 64-bit type for pos and block address. Use `>>' and `&' operator to avoid 64-bit divide and modulo. * include/grub/fshelp.h (grub_fshelp_journal_type): New enum. (GRUB_FSHELP_JOURNAL_UNUSED_MAPPING): New macro. (grub_fshelp_journal): New structure. (grub_fshelp_map_block): New function prototype. (grub_fshelp_read_file): Use grub_disk_addr_t as block type. (grub_fshelp_map_block): Likewise. * fs/ext2.c (EXT3_FEATURE_COMPAT_HAS_JOURNAL): New macro. (EXT3_JOURNAL_MAGIC_NUMBER): Likewise. (EXT3_JOURNAL_DESCRIPTOR_BLOCK): Likewise. (EXT3_JOURNAL_COMMIT_BLOCK): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V1): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V2): Likewise. (EXT3_JOURNAL_REVOKE_BLOCK): Likewise. (EXT3_JOURNAL_FLAG_ESCAPE): Likewise. (EXT3_JOURNAL_FLAG_SAME_UUID): Likewise. (EXT3_JOURNAL_FLAG_DELETED): Likewise. (EXT3_JOURNAL_FLAG_LAST_TAG): Likewise. (grub_ext2_sblock): New members for journal support. (grub_ext3_journal_header): New structure. (grub_ext3_journal_revoke_header): Likewise. (grub_ext3_journal_block_tag): Likewise. (grub_ext3_journal_sblock): Likewise. (grub_fshelp_node): New members logfile and journal. (grub_ext2_read_block): Change block type to grub_disk_addr_t. Use grub_fshelp_map_block to get real block number. (grub_ext2_blockgroup): Use grub_fshelp_map_block to get real block number. (grub_ext2_read_inode): Likewise. (grub_ext3_get_journal): New function. (grub_read_inode): Initialize journal using grub_ext3_get_journal. (grub_ext2_close): Release memory used by journal. * fs/reiserfs.c (REISERFS_MAGIC_STRING): Changed to "ReIsEr". (REISERFS_MAGIC_DESC_BLOCK): New macro. (grub_reiserfs_transaction_header): Renamed to grub_reiserfs_description_block, replace field data with real_blocks. (grub_reiserfs_commit_block): New structure. (grub_reiserfs_data): New member journal. (grub_reiserfs_get_item): Use grub_fshelp_map_block to get real block number. (grub_reiserfs_read_symlink): Likewise. (grub_reiserfs_iterate_dir): Likewise. (grub_reiserfs_open): Likewise. (grub_reiserfs_read): Likewise. (grub_reiserfs_get_journal): New function. (grub_reiserfs_mount): Use "ReIsEr" as super block magic, as there are three varieties ReIsErFs, ReIsEr2Fs and ReIsEr3Fs. Initialize journal using grub_reiserfs_get_journal. (grub_reiserfs_close): Release memory used by journal. * fs/affs.c (grub_affs_read_block): Change block type to grub_disk_addr_t. Use grub_divmod64 to do 64-bit division. * fs/afs.c (grub_afs_read_block): Change block type to grub_disk_addr_t. * fs/hfsplus.c (grub_hfsplus_read_block): Likewise. * fs/ntfs.c (grub_ntfs_read_block): Likewise. * fs/udf.c (grub_udf_read_block): Change block type to grub_disk_addr_t. Use type cast to avoid warning. * fs/xfs.c (grub_xfs_read_block): Likewise.
2008-05-20 05:00:53 +00:00
grub_uint8_t prealloc_blocks;
grub_uint8_t prealloc_dir_blocks;
grub_uint16_t reserved_gdt_blocks;
grub_uint8_t journal_uuid[16];
grub_uint32_t journal_inum;
grub_uint32_t journal_dev;
grub_uint32_t last_orphan;
grub_uint32_t hash_seed[4];
grub_uint8_t def_hash_version;
grub_uint8_t jnl_backup_type;
grub_uint16_t reserved_word_pad;
grub_uint32_t default_mount_opts;
grub_uint32_t first_meta_bg;
grub_uint32_t mkfs_time;
grub_uint32_t jnl_blocks[17];
};
/* The ext2 blockgroup. */
struct grub_ext2_block_group
{
grub_uint32_t block_id;
grub_uint32_t inode_id;
grub_uint32_t inode_table_id;
grub_uint16_t free_blocks;
grub_uint16_t free_inodes;
grub_uint16_t used_dirs;
grub_uint16_t pad;
grub_uint32_t reserved[3];
};
/* The ext2 inode. */
struct grub_ext2_inode
{
grub_uint16_t mode;
grub_uint16_t uid;
grub_uint32_t size;
grub_uint32_t atime;
grub_uint32_t ctime;
grub_uint32_t mtime;
grub_uint32_t dtime;
grub_uint16_t gid;
grub_uint16_t nlinks;
grub_uint32_t blockcnt; /* Blocks of 512 bytes!! */
grub_uint32_t flags;
grub_uint32_t osd1;
union
{
struct datablocks
{
grub_uint32_t dir_blocks[INDIRECT_BLOCKS];
grub_uint32_t indir_block;
grub_uint32_t double_indir_block;
grub_uint32_t triple_indir_block;
} blocks;
char symlink[60];
};
grub_uint32_t version;
grub_uint32_t acl;
grub_uint32_t dir_acl;
grub_uint32_t fragment_addr;
grub_uint32_t osd2[3];
};
/* The header of an ext2 directory entry. */
struct ext2_dirent
{
grub_uint32_t inode;
grub_uint16_t direntlen;
grub_uint8_t namelen;
grub_uint8_t filetype;
};
2008-05-20 Bean <bean123ch@gmail.com> * fs/fshelp.c (grub_fshelp_map_block): New function. (grub_fshelp_find_file): Use 64-bit type for pos and block address. Use `>>' and `&' operator to avoid 64-bit divide and modulo. * include/grub/fshelp.h (grub_fshelp_journal_type): New enum. (GRUB_FSHELP_JOURNAL_UNUSED_MAPPING): New macro. (grub_fshelp_journal): New structure. (grub_fshelp_map_block): New function prototype. (grub_fshelp_read_file): Use grub_disk_addr_t as block type. (grub_fshelp_map_block): Likewise. * fs/ext2.c (EXT3_FEATURE_COMPAT_HAS_JOURNAL): New macro. (EXT3_JOURNAL_MAGIC_NUMBER): Likewise. (EXT3_JOURNAL_DESCRIPTOR_BLOCK): Likewise. (EXT3_JOURNAL_COMMIT_BLOCK): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V1): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V2): Likewise. (EXT3_JOURNAL_REVOKE_BLOCK): Likewise. (EXT3_JOURNAL_FLAG_ESCAPE): Likewise. (EXT3_JOURNAL_FLAG_SAME_UUID): Likewise. (EXT3_JOURNAL_FLAG_DELETED): Likewise. (EXT3_JOURNAL_FLAG_LAST_TAG): Likewise. (grub_ext2_sblock): New members for journal support. (grub_ext3_journal_header): New structure. (grub_ext3_journal_revoke_header): Likewise. (grub_ext3_journal_block_tag): Likewise. (grub_ext3_journal_sblock): Likewise. (grub_fshelp_node): New members logfile and journal. (grub_ext2_read_block): Change block type to grub_disk_addr_t. Use grub_fshelp_map_block to get real block number. (grub_ext2_blockgroup): Use grub_fshelp_map_block to get real block number. (grub_ext2_read_inode): Likewise. (grub_ext3_get_journal): New function. (grub_read_inode): Initialize journal using grub_ext3_get_journal. (grub_ext2_close): Release memory used by journal. * fs/reiserfs.c (REISERFS_MAGIC_STRING): Changed to "ReIsEr". (REISERFS_MAGIC_DESC_BLOCK): New macro. (grub_reiserfs_transaction_header): Renamed to grub_reiserfs_description_block, replace field data with real_blocks. (grub_reiserfs_commit_block): New structure. (grub_reiserfs_data): New member journal. (grub_reiserfs_get_item): Use grub_fshelp_map_block to get real block number. (grub_reiserfs_read_symlink): Likewise. (grub_reiserfs_iterate_dir): Likewise. (grub_reiserfs_open): Likewise. (grub_reiserfs_read): Likewise. (grub_reiserfs_get_journal): New function. (grub_reiserfs_mount): Use "ReIsEr" as super block magic, as there are three varieties ReIsErFs, ReIsEr2Fs and ReIsEr3Fs. Initialize journal using grub_reiserfs_get_journal. (grub_reiserfs_close): Release memory used by journal. * fs/affs.c (grub_affs_read_block): Change block type to grub_disk_addr_t. Use grub_divmod64 to do 64-bit division. * fs/afs.c (grub_afs_read_block): Change block type to grub_disk_addr_t. * fs/hfsplus.c (grub_hfsplus_read_block): Likewise. * fs/ntfs.c (grub_ntfs_read_block): Likewise. * fs/udf.c (grub_udf_read_block): Change block type to grub_disk_addr_t. Use type cast to avoid warning. * fs/xfs.c (grub_xfs_read_block): Likewise.
2008-05-20 05:00:53 +00:00
struct grub_ext3_journal_header
{
grub_uint32_t magic;
grub_uint32_t block_type;
grub_uint32_t sequence;
};
struct grub_ext3_journal_revoke_header
{
struct grub_ext3_journal_header header;
grub_uint32_t count;
grub_uint32_t data[0];
};
struct grub_ext3_journal_block_tag
{
grub_uint32_t block;
grub_uint32_t flags;
};
struct grub_ext3_journal_sblock
{
struct grub_ext3_journal_header header;
grub_uint32_t block_size;
grub_uint32_t maxlen;
grub_uint32_t first;
grub_uint32_t sequence;
grub_uint32_t start;
};
#define EXT4_EXT_MAGIC 0xf30a
struct grub_ext4_extent_header
{
grub_uint16_t magic;
grub_uint16_t entries;
grub_uint16_t max;
grub_uint16_t depth;
grub_uint32_t generation;
};
struct grub_ext4_extent
{
grub_uint32_t block;
grub_uint16_t len;
grub_uint16_t start_hi;
grub_uint32_t start;
};
struct grub_ext4_extent_idx
{
grub_uint32_t block;
grub_uint32_t leaf;
grub_uint16_t leaf_hi;
grub_uint16_t unused;
};
struct grub_fshelp_node
{
struct grub_ext2_data *data;
struct grub_ext2_inode inode;
int ino;
int inode_read;
};
/* Information about a "mounted" ext2 filesystem. */
struct grub_ext2_data
{
struct grub_ext2_sblock sblock;
grub_disk_t disk;
struct grub_ext2_inode *inode;
struct grub_fshelp_node diropen;
};
static grub_dl_t my_mod;
/* Read into BLKGRP the blockgroup descriptor of blockgroup GROUP of
the mounted filesystem DATA. */
inline static grub_err_t
grub_ext2_blockgroup (struct grub_ext2_data *data, int group,
struct grub_ext2_block_group *blkgrp)
{
return grub_disk_read (data->disk,
((grub_le_to_cpu32 (data->sblock.first_data_block) + 1)
<< LOG2_EXT2_BLOCK_SIZE (data)),
group * sizeof (struct grub_ext2_block_group),
sizeof (struct grub_ext2_block_group), blkgrp);
}
static struct grub_ext4_extent_header *
grub_ext4_find_leaf (struct grub_ext2_data *data, char *buf,
struct grub_ext4_extent_header *ext_block,
grub_uint32_t fileblock)
{
struct grub_ext4_extent_idx *index;
while (1)
{
int i;
grub_disk_addr_t block;
index = (struct grub_ext4_extent_idx *) (ext_block + 1);
if (grub_le_to_cpu16(ext_block->magic) != EXT4_EXT_MAGIC)
return 0;
if (ext_block->depth == 0)
return ext_block;
for (i = 0; i < grub_le_to_cpu16 (ext_block->entries); i++)
{
if (fileblock < grub_le_to_cpu32(index[i].block))
break;
}
if (--i < 0)
return 0;
block = grub_le_to_cpu16 (index[i].leaf_hi);
block = (block << 32) + grub_le_to_cpu32 (index[i].leaf);
if (grub_disk_read (data->disk,
block << LOG2_EXT2_BLOCK_SIZE (data),
0, EXT2_BLOCK_SIZE(data), buf))
return 0;
ext_block = (struct grub_ext4_extent_header *) buf;
}
}
2008-05-20 Bean <bean123ch@gmail.com> * fs/fshelp.c (grub_fshelp_map_block): New function. (grub_fshelp_find_file): Use 64-bit type for pos and block address. Use `>>' and `&' operator to avoid 64-bit divide and modulo. * include/grub/fshelp.h (grub_fshelp_journal_type): New enum. (GRUB_FSHELP_JOURNAL_UNUSED_MAPPING): New macro. (grub_fshelp_journal): New structure. (grub_fshelp_map_block): New function prototype. (grub_fshelp_read_file): Use grub_disk_addr_t as block type. (grub_fshelp_map_block): Likewise. * fs/ext2.c (EXT3_FEATURE_COMPAT_HAS_JOURNAL): New macro. (EXT3_JOURNAL_MAGIC_NUMBER): Likewise. (EXT3_JOURNAL_DESCRIPTOR_BLOCK): Likewise. (EXT3_JOURNAL_COMMIT_BLOCK): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V1): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V2): Likewise. (EXT3_JOURNAL_REVOKE_BLOCK): Likewise. (EXT3_JOURNAL_FLAG_ESCAPE): Likewise. (EXT3_JOURNAL_FLAG_SAME_UUID): Likewise. (EXT3_JOURNAL_FLAG_DELETED): Likewise. (EXT3_JOURNAL_FLAG_LAST_TAG): Likewise. (grub_ext2_sblock): New members for journal support. (grub_ext3_journal_header): New structure. (grub_ext3_journal_revoke_header): Likewise. (grub_ext3_journal_block_tag): Likewise. (grub_ext3_journal_sblock): Likewise. (grub_fshelp_node): New members logfile and journal. (grub_ext2_read_block): Change block type to grub_disk_addr_t. Use grub_fshelp_map_block to get real block number. (grub_ext2_blockgroup): Use grub_fshelp_map_block to get real block number. (grub_ext2_read_inode): Likewise. (grub_ext3_get_journal): New function. (grub_read_inode): Initialize journal using grub_ext3_get_journal. (grub_ext2_close): Release memory used by journal. * fs/reiserfs.c (REISERFS_MAGIC_STRING): Changed to "ReIsEr". (REISERFS_MAGIC_DESC_BLOCK): New macro. (grub_reiserfs_transaction_header): Renamed to grub_reiserfs_description_block, replace field data with real_blocks. (grub_reiserfs_commit_block): New structure. (grub_reiserfs_data): New member journal. (grub_reiserfs_get_item): Use grub_fshelp_map_block to get real block number. (grub_reiserfs_read_symlink): Likewise. (grub_reiserfs_iterate_dir): Likewise. (grub_reiserfs_open): Likewise. (grub_reiserfs_read): Likewise. (grub_reiserfs_get_journal): New function. (grub_reiserfs_mount): Use "ReIsEr" as super block magic, as there are three varieties ReIsErFs, ReIsEr2Fs and ReIsEr3Fs. Initialize journal using grub_reiserfs_get_journal. (grub_reiserfs_close): Release memory used by journal. * fs/affs.c (grub_affs_read_block): Change block type to grub_disk_addr_t. Use grub_divmod64 to do 64-bit division. * fs/afs.c (grub_afs_read_block): Change block type to grub_disk_addr_t. * fs/hfsplus.c (grub_hfsplus_read_block): Likewise. * fs/ntfs.c (grub_ntfs_read_block): Likewise. * fs/udf.c (grub_udf_read_block): Change block type to grub_disk_addr_t. Use type cast to avoid warning. * fs/xfs.c (grub_xfs_read_block): Likewise.
2008-05-20 05:00:53 +00:00
static grub_disk_addr_t
grub_ext2_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
{
struct grub_ext2_data *data = node->data;
struct grub_ext2_inode *inode = &node->inode;
int blknr = -1;
2008-05-20 Bean <bean123ch@gmail.com> * fs/fshelp.c (grub_fshelp_map_block): New function. (grub_fshelp_find_file): Use 64-bit type for pos and block address. Use `>>' and `&' operator to avoid 64-bit divide and modulo. * include/grub/fshelp.h (grub_fshelp_journal_type): New enum. (GRUB_FSHELP_JOURNAL_UNUSED_MAPPING): New macro. (grub_fshelp_journal): New structure. (grub_fshelp_map_block): New function prototype. (grub_fshelp_read_file): Use grub_disk_addr_t as block type. (grub_fshelp_map_block): Likewise. * fs/ext2.c (EXT3_FEATURE_COMPAT_HAS_JOURNAL): New macro. (EXT3_JOURNAL_MAGIC_NUMBER): Likewise. (EXT3_JOURNAL_DESCRIPTOR_BLOCK): Likewise. (EXT3_JOURNAL_COMMIT_BLOCK): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V1): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V2): Likewise. (EXT3_JOURNAL_REVOKE_BLOCK): Likewise. (EXT3_JOURNAL_FLAG_ESCAPE): Likewise. (EXT3_JOURNAL_FLAG_SAME_UUID): Likewise. (EXT3_JOURNAL_FLAG_DELETED): Likewise. (EXT3_JOURNAL_FLAG_LAST_TAG): Likewise. (grub_ext2_sblock): New members for journal support. (grub_ext3_journal_header): New structure. (grub_ext3_journal_revoke_header): Likewise. (grub_ext3_journal_block_tag): Likewise. (grub_ext3_journal_sblock): Likewise. (grub_fshelp_node): New members logfile and journal. (grub_ext2_read_block): Change block type to grub_disk_addr_t. Use grub_fshelp_map_block to get real block number. (grub_ext2_blockgroup): Use grub_fshelp_map_block to get real block number. (grub_ext2_read_inode): Likewise. (grub_ext3_get_journal): New function. (grub_read_inode): Initialize journal using grub_ext3_get_journal. (grub_ext2_close): Release memory used by journal. * fs/reiserfs.c (REISERFS_MAGIC_STRING): Changed to "ReIsEr". (REISERFS_MAGIC_DESC_BLOCK): New macro. (grub_reiserfs_transaction_header): Renamed to grub_reiserfs_description_block, replace field data with real_blocks. (grub_reiserfs_commit_block): New structure. (grub_reiserfs_data): New member journal. (grub_reiserfs_get_item): Use grub_fshelp_map_block to get real block number. (grub_reiserfs_read_symlink): Likewise. (grub_reiserfs_iterate_dir): Likewise. (grub_reiserfs_open): Likewise. (grub_reiserfs_read): Likewise. (grub_reiserfs_get_journal): New function. (grub_reiserfs_mount): Use "ReIsEr" as super block magic, as there are three varieties ReIsErFs, ReIsEr2Fs and ReIsEr3Fs. Initialize journal using grub_reiserfs_get_journal. (grub_reiserfs_close): Release memory used by journal. * fs/affs.c (grub_affs_read_block): Change block type to grub_disk_addr_t. Use grub_divmod64 to do 64-bit division. * fs/afs.c (grub_afs_read_block): Change block type to grub_disk_addr_t. * fs/hfsplus.c (grub_hfsplus_read_block): Likewise. * fs/ntfs.c (grub_ntfs_read_block): Likewise. * fs/udf.c (grub_udf_read_block): Change block type to grub_disk_addr_t. Use type cast to avoid warning. * fs/xfs.c (grub_xfs_read_block): Likewise.
2008-05-20 05:00:53 +00:00
unsigned int blksz = EXT2_BLOCK_SIZE (data);
int log2_blksz = LOG2_EXT2_BLOCK_SIZE (data);
if (grub_le_to_cpu32(inode->flags) & EXT4_EXTENTS_FLAG)
{
char buf[EXT2_BLOCK_SIZE(data)];
struct grub_ext4_extent_header *leaf;
struct grub_ext4_extent *ext;
int i;
leaf = grub_ext4_find_leaf (data, buf,
(struct grub_ext4_extent_header *) inode->blocks.dir_blocks,
fileblock);
if (! leaf)
{
grub_error (GRUB_ERR_BAD_FS, "invalid extent");
return -1;
}
ext = (struct grub_ext4_extent *) (leaf + 1);
for (i = 0; i < grub_le_to_cpu16 (leaf->entries); i++)
{
if (fileblock < grub_le_to_cpu32 (ext[i].block))
break;
}
if (--i >= 0)
{
fileblock -= grub_le_to_cpu32 (ext[i].block);
if (fileblock >= grub_le_to_cpu16 (ext[i].len))
return 0;
else
{
grub_disk_addr_t start;
start = grub_le_to_cpu16 (ext[i].start_hi);
start = (start << 32) + grub_le_to_cpu32 (ext[i].start);
return fileblock + start;
}
}
else
{
grub_error (GRUB_ERR_BAD_FS, "something wrong with extent");
return -1;
}
}
/* Direct blocks. */
if (fileblock < INDIRECT_BLOCKS)
blknr = grub_le_to_cpu32 (inode->blocks.dir_blocks[fileblock]);
/* Indirect. */
else if (fileblock < INDIRECT_BLOCKS + blksz / 4)
{
grub_uint32_t indir[blksz / 4];
if (grub_disk_read (data->disk,
grub_le_to_cpu32 (inode->blocks.indir_block)
<< log2_blksz,
0, blksz, indir))
return grub_errno;
blknr = grub_le_to_cpu32 (indir[fileblock - INDIRECT_BLOCKS]);
}
/* Double indirect. */
else if (fileblock < INDIRECT_BLOCKS + blksz / 4 * (blksz / 4 + 1))
{
unsigned int perblock = blksz / 4;
unsigned int rblock = fileblock - (INDIRECT_BLOCKS
+ blksz / 4);
grub_uint32_t indir[blksz / 4];
if (grub_disk_read (data->disk,
grub_le_to_cpu32 (inode->blocks.double_indir_block)
<< log2_blksz,
0, blksz, indir))
return grub_errno;
if (grub_disk_read (data->disk,
grub_le_to_cpu32 (indir[rblock / perblock])
<< log2_blksz,
0, blksz, indir))
return grub_errno;
blknr = grub_le_to_cpu32 (indir[rblock % perblock]);
}
/* triple indirect. */
else
{
grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"ext2fs doesn't support triple indirect blocks");
}
return blknr;
}
/* Read LEN bytes from the file described by DATA starting with byte
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_ext2_read_file (grub_fshelp_node_t node,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
2006-06-04 Yoshinori K. Okuji <okuji@enbug.org> Clean up the code to support 64-bit addressing in disks and files. This change is not enough for filesystems yet. * util/i386/pc/grub-setup.c (struct boot_blocklist): Change the type of "start" to grub_uint64_t. (setup): Change the types of KERNEL_SECTOR and FIRST_SECTOR to grub_disk_addr_t * and grub_disk_addr_t. Fix the format string in save_first_sector and save_blocklists. Use grub_le_to_cpu64 to convert addresses. * util/i386/pc/biosdisk.c (open_device): Change the type of SECTOR to grub_disk_addr_t. * partmap/gpt.c (gpt_partition_map_iterate): Fix the format string. * partmap/pc.c (pc_partition_map_iterate): Likewise. * partmap/amiga.c (amiga_partition_map_iterate): Cast RDSK.MAGIC to char *. * normal/script.c (grub_script_parse): Remove unused MEMFREE. * normal/parser.y (YYLTYPE_IS_TRIVIAL): New macro. * normal/lexer.c (grub_script_yyerror): Specify unused to LEX. * loader/i386/pc/multiboot.c (grub_multiboot_load_elf64): Cast -1 to grub_off_t, to detect an error from grub_file_seek. (grub_multiboot_load_elf32): Likewise. * kern/misc.c (grub_strtoul): Use grub_strtoull. Return the maximum unsigned long value when an overflow is detected. (grub_strtoull): New function. (grub_divmod64): Likewise. (grub_lltoa): use grub_divmod64. * kern/fs.c (struct grub_fs_block): Change the type of "offset" to grub_disk_addr_t. (grub_fs_blocklist_open): Increase P if P is not NULL to advance the pointer to next character. Use grub_strtoull instead of grub_strtoul. (grub_fs_blocklist_read): Change the types of SECTOR, OFFSET and SIZE to grub_disk_addr_t, grub_off_t and grub_size_t, respectively. * kern/file.c (grub_file_read): Prevent an oveflow of LEN, as the return value is signed. (grub_file_seek): Change the type of OLD to grub_off_t. Do not test if OFFSET is less than zero, as OFFSET is unsigned now. * kern/disk.c (struct grub_disk_cache): Change the type of "sector" to grub_disk_addr_t. (grub_disk_cache_get_index): Change the type of SECTOR to grub_disk_addr_t. Calculate the hash with SECTOR casted to unsigned after shifting. (grub_disk_cache_invalidate): Change the type of SECTOR to grub_disk_addr_t. (grub_disk_cache_unlock): Likewise. (grub_disk_cache_store): Likewise. (grub_disk_check_range): Change the types of SECTOR, OFFSET, SIZE, START and LEN to grub_disk_addr_t *, grub_off_t *, grub_size_t, grub_disk_addr_t and grub_uint64_t, respectively. (grub_disk_read): Use an unsigned variable REAL_OFFSET for the body, as the value of OFFSET is tweaked by grub_disk_check_range. Change the types of START_SECTOR, LEN and POS to grub_disk_addr_t, grub_size_t and grub_size_t, respectively. (grub_disk_write): Use an unsigned variable REAL_OFFSET for the body, as the value of OFFSET is tweaked by grub_disk_check_range. Change the types of LEN and N to grub_size_t. * io/gzio.c (struct grub_gzio): Change the types of "data_offset" and "saved_offset" to grub_off_t. (test_header): Cast BUF to char *. (get_byte): Cast GZIO->DATA_OFFSET to grub_off_t. Cast GZIO->INBUF to char *. (grub_gzio_read): Change the types of OFFSET and SIZE to grub_off_t and grub_size_t, respectively. * include/grub/i386/pc/boot.h (GRUB_BOOT_MACHINE_FORCE_LBA): Removed. (GRUB_BOOT_MACHINE_BOOT_DRIVE): Changed to 0x4c. (GRUB_BOOT_MACHINE_KERNEL_ADDRESS): Changed to 0x40. (GRUB_BOOT_MACHINE_KERNEL_SEGMENT): Changed to 0x42. (GRUB_BOOT_MACHINE_DRIVE_CHECK): Changed to 0x4e. (GRUB_BOOT_MACHINE_LIST_SIZE): Increased to 12. * include/grub/types.h (grub_off_t): Unconditionally set to grub_uint64_t. (grub_disk_addr_t): Changed to grub_uint64_t. * include/grub/partition.h (struct grub_partition): Change the types of "start", "len" and "offset" to grub_disk_addr_t, grub_uint64_t and grub_disk_addr_t, respectively. (grub_partition_get_start): Return grub_disk_addr_t. (grub_partition_get_len): Return grub_uint64_t. * include/grub/misc.h (grub_strtoull): New prototype. (grub_divmod64): Likewise. * include/grub/fshelp.h (grub_fshelp_read_file): Change the types of SECTOR, LEN and FILESIZE to grub_disk_addr_t, grub_size_t and grub_off_t, respectively. All callers and references changed. * include/grub/fs.h (struct grub_fs): Change the type of LEN to grub_size_t in "read". All callers and references changed. * include/grub/file.h (struct grub_file): Change the types of "offset" and "size" to grub_off_t and grub_off_t, respectively. Change the type of SECTOR to grub_disk_addr_t in "read_hook". (grub_file_read): Change the type of LEN to grub_size_t. (grub_file_seek): Return grub_off_t. Change the type of OFFSET to grub_off_t. (grub_file_size): Return grub_off_t. (grub_file_tell): Likewise. All callers and references changed. * include/grub/disk.h (struct grub_disk_dev): Change the types of SECTOR and SIZE to grub_disk_addr_t and grub_size_t in "read" and "write". (struct grub_disk): Change the type of "total_sectors" to grub_uint64_t. Change the type of SECTOR to grub_disk_addr_t in "read_hook". (grub_disk_read): Change the types of SECTOR, OFFSET and SIZE to grub_disk_addr_t, grub_off_t and grub_size_t, respectively. (grub_disk_write): Likewise. All callers and references changed. * fs/iso9660.c (grub_iso9660_susp_iterate): Cast parameters to char * for grub_strncmp to silence gcc. (grub_iso9660_mount): Likewise. (grub_iso9660_mount): Likewise. (grub_iso9660_read_symlink): Likewise. Also, remove the nonsense return statement. (grub_iso9660_iterate_dir): Likewise. (grub_iso9660_label): Cast DATA->VOLDESC.VOLNAME to char *. * fs/hfs.c (grub_hfs_read_file): Change the types of SECTOR and LEN to grub_disk_addr_t and grub_size_t, respectively. * fs/hfsplus.c (grub_hfsplus_read_file): Likewise. * fs/jfs.c (grub_jfs_read_file): Likewise. * fs/minix.c (grub_jfs_read_file): Likewise. * fs/sfs.c (grub_jfs_read_file): Likewise. * fs/ufs.c (grub_jfs_read_file): Likewise. * fs/xfs.c (grub_jfs_read_file): Likewise. * fs/fat.c (grub_fat_read_data): Change the types of SECTOR, LEN and SIZE to grub_disk_addr_t, grub_size_t and grub_size_t, respectively. * fs/ext2.c (grub_ext2_read_block): When an error happens, set BLKNR to -1 instead of returning GRUB_ERRNO. (grub_ext2_read_file): Change the types of SECTOR and LEN to grub_disk_addr_t and grub_size_t, respectively. * fs/affs.c (grub_affs_read_file): Change the types of SECTOR and LEN to grub_disk_addr_t and grub_size_t, respectively. * font/manager.c (grub_font_get_glyph): Cast BITMAP to char * for grub_file_read. * disk/ieee1275/ofdisk.c (grub_ofdisk_read): Fix the format string. Do not cast SECTOR explicitly. * disk/i386/pc/biosdisk.c (grub_biosdisk_open): Change the type of TOTAL_SECTORS to grub_uint64_t. Do not mask DRP->TOTAL_SECTORS. (grub_biosdisk_rw): Change the types of SECTOR and SIZE to grub_disk_addr_t and grub_size_t, respectively. If the sector is over 2TB and LBA mode is not supported, raise an error. (get_safe_sectors): New function. (grub_biosdisk_read): Use get_safe_sectors. (grub_biosdisk_write): Likewise. * disk/efi/efidisk.c (grub_efidisk_read): Fix the format string. (grub_efidisk_write): Likewise. * disk/loopback.c (delete_loopback): Cosmetic changes. (grub_cmd_loopback): Likewise. Also, test NEWDEV->FILENAME correctly. (grub_loopback_open): Likewise. (grub_loopback_read): Likewise. Also, change the type of POS to grub_off_t, and fix the usage of grub_memset. * commands/i386/pc/play.c: Include grub/machine/time.h. * commands/ls.c (grub_ls_list_files): Use "llu" instead of "d" to print FILE->SIZE. * commands/configfile.c: Include grub/env.h. * commands/cmp.c (grub_cmd_cmp): Do not use ERR, but use GRUB_ERRNO directly instead. Change the type of POS to grub_off_t. Follow the coding standard. * commands/blocklist.c: Include grub/partition.h. (grub_cmd_blocklist): Return an error if the underlying device is not a disk. Take the starting sector of a partition into account, if a partition is used. * boot/i386/pc/diskboot.S (bootloop): Adapted to the new offset of a length field. (lba_mode): Support 64-bit addresses. (chs_mode): Likewise. (copy_buffer): Adapted to the new offsets of a length field and a segment field. (blocklist_default_start): Allocate 64-bit space. * boot/i386/pc/boot.S (force_lba): Removed. (boot_drive): Moved to under KERNEL_SECTOR. (kernel_sector): Moved to under KENREL_SEGMENT. Allocate 64-bit space. (real_start): Set %si earlier. Remove code for FORCE_LBA, since it is useless. (lba_mode): Refactored to support a 64-bit address. More size optimization. (setup_sectors): Likewise.
2006-06-04 15:56:55 +00:00
int pos, grub_size_t len, char *buf)
{
return grub_fshelp_read_file (node->data->disk, node, read_hook,
pos, len, buf, grub_ext2_read_block,
node->inode.size,
LOG2_EXT2_BLOCK_SIZE (node->data));
}
/* Read the inode INO for the file described by DATA into INODE. */
static grub_err_t
grub_ext2_read_inode (struct grub_ext2_data *data,
int ino, struct grub_ext2_inode *inode)
{
struct grub_ext2_block_group blkgrp;
struct grub_ext2_sblock *sblock = &data->sblock;
int inodes_per_block;
unsigned int blkno;
unsigned int blkoff;
/* It is easier to calculate if the first inode is 0. */
ino--;
grub_ext2_blockgroup (data,
ino / grub_le_to_cpu32 (sblock->inodes_per_group),
&blkgrp);
if (grub_errno)
return grub_errno;
inodes_per_block = EXT2_BLOCK_SIZE (data) / EXT2_INODE_SIZE (data);
blkno = (ino % grub_le_to_cpu32 (sblock->inodes_per_group))
/ inodes_per_block;
blkoff = (ino % grub_le_to_cpu32 (sblock->inodes_per_group))
% inodes_per_block;
/* Read the inode. */
if (grub_disk_read (data->disk,
((grub_le_to_cpu32 (blkgrp.inode_table_id) + blkno)
<< LOG2_EXT2_BLOCK_SIZE (data)),
EXT2_INODE_SIZE (data) * blkoff,
sizeof (struct grub_ext2_inode), inode))
return grub_errno;
return 0;
}
static struct grub_ext2_data *
grub_ext2_mount (grub_disk_t disk)
{
struct grub_ext2_data *data;
data = grub_malloc (sizeof (struct grub_ext2_data));
if (!data)
return 0;
/* Read the superblock. */
grub_disk_read (disk, 1 * 2, 0, sizeof (struct grub_ext2_sblock),
&data->sblock);
if (grub_errno)
goto fail;
/* Make sure this is an ext2 filesystem. */
if (grub_le_to_cpu16 (data->sblock.magic) != EXT2_MAGIC)
{
grub_error (GRUB_ERR_BAD_FS, "not an ext2 filesystem");
goto fail;
}
/* Check the FS doesn't have feature bits enabled that we don't support. */
if (grub_le_to_cpu32 (data->sblock.feature_incompat)
& ~(EXT2_DRIVER_SUPPORTED_INCOMPAT | EXT2_DRIVER_IGNORED_INCOMPAT))
{
grub_error (GRUB_ERR_BAD_FS, "filesystem has unsupported incompatible features");
goto fail;
}
2008-05-20 Bean <bean123ch@gmail.com> * fs/fshelp.c (grub_fshelp_map_block): New function. (grub_fshelp_find_file): Use 64-bit type for pos and block address. Use `>>' and `&' operator to avoid 64-bit divide and modulo. * include/grub/fshelp.h (grub_fshelp_journal_type): New enum. (GRUB_FSHELP_JOURNAL_UNUSED_MAPPING): New macro. (grub_fshelp_journal): New structure. (grub_fshelp_map_block): New function prototype. (grub_fshelp_read_file): Use grub_disk_addr_t as block type. (grub_fshelp_map_block): Likewise. * fs/ext2.c (EXT3_FEATURE_COMPAT_HAS_JOURNAL): New macro. (EXT3_JOURNAL_MAGIC_NUMBER): Likewise. (EXT3_JOURNAL_DESCRIPTOR_BLOCK): Likewise. (EXT3_JOURNAL_COMMIT_BLOCK): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V1): Likewise. (EXT3_JOURNAL_SUPERBLOCK_V2): Likewise. (EXT3_JOURNAL_REVOKE_BLOCK): Likewise. (EXT3_JOURNAL_FLAG_ESCAPE): Likewise. (EXT3_JOURNAL_FLAG_SAME_UUID): Likewise. (EXT3_JOURNAL_FLAG_DELETED): Likewise. (EXT3_JOURNAL_FLAG_LAST_TAG): Likewise. (grub_ext2_sblock): New members for journal support. (grub_ext3_journal_header): New structure. (grub_ext3_journal_revoke_header): Likewise. (grub_ext3_journal_block_tag): Likewise. (grub_ext3_journal_sblock): Likewise. (grub_fshelp_node): New members logfile and journal. (grub_ext2_read_block): Change block type to grub_disk_addr_t. Use grub_fshelp_map_block to get real block number. (grub_ext2_blockgroup): Use grub_fshelp_map_block to get real block number. (grub_ext2_read_inode): Likewise. (grub_ext3_get_journal): New function. (grub_read_inode): Initialize journal using grub_ext3_get_journal. (grub_ext2_close): Release memory used by journal. * fs/reiserfs.c (REISERFS_MAGIC_STRING): Changed to "ReIsEr". (REISERFS_MAGIC_DESC_BLOCK): New macro. (grub_reiserfs_transaction_header): Renamed to grub_reiserfs_description_block, replace field data with real_blocks. (grub_reiserfs_commit_block): New structure. (grub_reiserfs_data): New member journal. (grub_reiserfs_get_item): Use grub_fshelp_map_block to get real block number. (grub_reiserfs_read_symlink): Likewise. (grub_reiserfs_iterate_dir): Likewise. (grub_reiserfs_open): Likewise. (grub_reiserfs_read): Likewise. (grub_reiserfs_get_journal): New function. (grub_reiserfs_mount): Use "ReIsEr" as super block magic, as there are three varieties ReIsErFs, ReIsEr2Fs and ReIsEr3Fs. Initialize journal using grub_reiserfs_get_journal. (grub_reiserfs_close): Release memory used by journal. * fs/affs.c (grub_affs_read_block): Change block type to grub_disk_addr_t. Use grub_divmod64 to do 64-bit division. * fs/afs.c (grub_afs_read_block): Change block type to grub_disk_addr_t. * fs/hfsplus.c (grub_hfsplus_read_block): Likewise. * fs/ntfs.c (grub_ntfs_read_block): Likewise. * fs/udf.c (grub_udf_read_block): Change block type to grub_disk_addr_t. Use type cast to avoid warning. * fs/xfs.c (grub_xfs_read_block): Likewise.
2008-05-20 05:00:53 +00:00
data->disk = disk;
data->diropen.data = data;
data->diropen.ino = 2;
data->diropen.inode_read = 1;
data->inode = &data->diropen.inode;
grub_ext2_read_inode (data, 2, data->inode);
if (grub_errno)
goto fail;
return data;
fail:
if (grub_errno == GRUB_ERR_OUT_OF_RANGE)
grub_error (GRUB_ERR_BAD_FS, "not an ext2 filesystem");
grub_free (data);
return 0;
}
static char *
grub_ext2_read_symlink (grub_fshelp_node_t node)
{
char *symlink;
struct grub_fshelp_node *diro = node;
if (! diro->inode_read)
{
grub_ext2_read_inode (diro->data, diro->ino, &diro->inode);
if (grub_errno)
return 0;
}
symlink = grub_malloc (grub_le_to_cpu32 (diro->inode.size) + 1);
if (! symlink)
return 0;
/* If the filesize of the symlink is bigger than
60 the symlink is stored in a separate block,
otherwise it is stored in the inode. */
if (grub_le_to_cpu32 (diro->inode.size) <= 60)
grub_strncpy (symlink,
diro->inode.symlink,
grub_le_to_cpu32 (diro->inode.size));
else
{
grub_ext2_read_file (diro, 0, 0,
grub_le_to_cpu32 (diro->inode.size),
symlink);
if (grub_errno)
{
grub_free (symlink);
return 0;
}
}
symlink[grub_le_to_cpu32 (diro->inode.size)] = '\0';
return symlink;
}
static int
grub_ext2_iterate_dir (grub_fshelp_node_t dir,
int NESTED_FUNC_ATTR
(*hook) (const char *filename,
enum grub_fshelp_filetype filetype,
grub_fshelp_node_t node))
{
unsigned int fpos = 0;
struct grub_fshelp_node *diro = (struct grub_fshelp_node *) dir;
if (! diro->inode_read)
{
grub_ext2_read_inode (diro->data, diro->ino, &diro->inode);
if (grub_errno)
return 0;
}
/* Search the file. */
while (fpos < grub_le_to_cpu32 (diro->inode.size))
{
struct ext2_dirent dirent;
grub_ext2_read_file (diro, 0, fpos, sizeof (struct ext2_dirent),
(char *) &dirent);
if (grub_errno)
return 0;
if (dirent.namelen != 0)
{
char filename[dirent.namelen + 1];
struct grub_fshelp_node *fdiro;
enum grub_fshelp_filetype type = GRUB_FSHELP_UNKNOWN;
grub_ext2_read_file (diro, 0, fpos + sizeof (struct ext2_dirent),
dirent.namelen, filename);
if (grub_errno)
return 0;
fdiro = grub_malloc (sizeof (struct grub_fshelp_node));
if (! fdiro)
return 0;
fdiro->data = diro->data;
fdiro->ino = grub_le_to_cpu32 (dirent.inode);
filename[dirent.namelen] = '\0';
if (dirent.filetype != FILETYPE_UNKNOWN)
{
fdiro->inode_read = 0;
if (dirent.filetype == FILETYPE_DIRECTORY)
type = GRUB_FSHELP_DIR;
else if (dirent.filetype == FILETYPE_SYMLINK)
type = GRUB_FSHELP_SYMLINK;
else if (dirent.filetype == FILETYPE_REG)
type = GRUB_FSHELP_REG;
}
else
{
/* The filetype can not be read from the dirent, read
the inode to get more information. */
grub_ext2_read_inode (diro->data,
grub_le_to_cpu32 (dirent.inode),
&fdiro->inode);
if (grub_errno)
{
grub_free (fdiro);
return 0;
}
fdiro->inode_read = 1;
if ((grub_le_to_cpu16 (fdiro->inode.mode)
& FILETYPE_INO_MASK) == FILETYPE_INO_DIRECTORY)
type = GRUB_FSHELP_DIR;
else if ((grub_le_to_cpu16 (fdiro->inode.mode)
& FILETYPE_INO_MASK) == FILETYPE_INO_SYMLINK)
type = GRUB_FSHELP_SYMLINK;
else if ((grub_le_to_cpu16 (fdiro->inode.mode)
& FILETYPE_INO_MASK) == FILETYPE_INO_REG)
type = GRUB_FSHELP_REG;
}
if (hook (filename, type, fdiro))
return 1;
}
fpos += grub_le_to_cpu16 (dirent.direntlen);
}
return 0;
}
/* Open a file named NAME and initialize FILE. */
static grub_err_t
grub_ext2_open (struct grub_file *file, const char *name)
{
struct grub_ext2_data *data;
struct grub_fshelp_node *fdiro = 0;
grub_dl_ref (my_mod);
data = grub_ext2_mount (file->device->disk);
if (! data)
goto fail;
grub_fshelp_find_file (name, &data->diropen, &fdiro, grub_ext2_iterate_dir,
grub_ext2_read_symlink, GRUB_FSHELP_REG);
if (grub_errno)
goto fail;
if (! fdiro->inode_read)
{
grub_ext2_read_inode (data, fdiro->ino, &fdiro->inode);
if (grub_errno)
goto fail;
}
grub_memcpy (data->inode, &fdiro->inode, sizeof (struct grub_ext2_inode));
grub_free (fdiro);
file->size = grub_le_to_cpu32 (data->inode->size);
file->data = data;
file->offset = 0;
return 0;
fail:
if (fdiro != &data->diropen)
grub_free (fdiro);
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
static grub_err_t
grub_ext2_close (grub_file_t file)
{
grub_free (file->data);
grub_dl_unref (my_mod);
return GRUB_ERR_NONE;
}
/* Read LEN bytes data from FILE into BUF. */
static grub_ssize_t
2006-06-04 Yoshinori K. Okuji <okuji@enbug.org> Clean up the code to support 64-bit addressing in disks and files. This change is not enough for filesystems yet. * util/i386/pc/grub-setup.c (struct boot_blocklist): Change the type of "start" to grub_uint64_t. (setup): Change the types of KERNEL_SECTOR and FIRST_SECTOR to grub_disk_addr_t * and grub_disk_addr_t. Fix the format string in save_first_sector and save_blocklists. Use grub_le_to_cpu64 to convert addresses. * util/i386/pc/biosdisk.c (open_device): Change the type of SECTOR to grub_disk_addr_t. * partmap/gpt.c (gpt_partition_map_iterate): Fix the format string. * partmap/pc.c (pc_partition_map_iterate): Likewise. * partmap/amiga.c (amiga_partition_map_iterate): Cast RDSK.MAGIC to char *. * normal/script.c (grub_script_parse): Remove unused MEMFREE. * normal/parser.y (YYLTYPE_IS_TRIVIAL): New macro. * normal/lexer.c (grub_script_yyerror): Specify unused to LEX. * loader/i386/pc/multiboot.c (grub_multiboot_load_elf64): Cast -1 to grub_off_t, to detect an error from grub_file_seek. (grub_multiboot_load_elf32): Likewise. * kern/misc.c (grub_strtoul): Use grub_strtoull. Return the maximum unsigned long value when an overflow is detected. (grub_strtoull): New function. (grub_divmod64): Likewise. (grub_lltoa): use grub_divmod64. * kern/fs.c (struct grub_fs_block): Change the type of "offset" to grub_disk_addr_t. (grub_fs_blocklist_open): Increase P if P is not NULL to advance the pointer to next character. Use grub_strtoull instead of grub_strtoul. (grub_fs_blocklist_read): Change the types of SECTOR, OFFSET and SIZE to grub_disk_addr_t, grub_off_t and grub_size_t, respectively. * kern/file.c (grub_file_read): Prevent an oveflow of LEN, as the return value is signed. (grub_file_seek): Change the type of OLD to grub_off_t. Do not test if OFFSET is less than zero, as OFFSET is unsigned now. * kern/disk.c (struct grub_disk_cache): Change the type of "sector" to grub_disk_addr_t. (grub_disk_cache_get_index): Change the type of SECTOR to grub_disk_addr_t. Calculate the hash with SECTOR casted to unsigned after shifting. (grub_disk_cache_invalidate): Change the type of SECTOR to grub_disk_addr_t. (grub_disk_cache_unlock): Likewise. (grub_disk_cache_store): Likewise. (grub_disk_check_range): Change the types of SECTOR, OFFSET, SIZE, START and LEN to grub_disk_addr_t *, grub_off_t *, grub_size_t, grub_disk_addr_t and grub_uint64_t, respectively. (grub_disk_read): Use an unsigned variable REAL_OFFSET for the body, as the value of OFFSET is tweaked by grub_disk_check_range. Change the types of START_SECTOR, LEN and POS to grub_disk_addr_t, grub_size_t and grub_size_t, respectively. (grub_disk_write): Use an unsigned variable REAL_OFFSET for the body, as the value of OFFSET is tweaked by grub_disk_check_range. Change the types of LEN and N to grub_size_t. * io/gzio.c (struct grub_gzio): Change the types of "data_offset" and "saved_offset" to grub_off_t. (test_header): Cast BUF to char *. (get_byte): Cast GZIO->DATA_OFFSET to grub_off_t. Cast GZIO->INBUF to char *. (grub_gzio_read): Change the types of OFFSET and SIZE to grub_off_t and grub_size_t, respectively. * include/grub/i386/pc/boot.h (GRUB_BOOT_MACHINE_FORCE_LBA): Removed. (GRUB_BOOT_MACHINE_BOOT_DRIVE): Changed to 0x4c. (GRUB_BOOT_MACHINE_KERNEL_ADDRESS): Changed to 0x40. (GRUB_BOOT_MACHINE_KERNEL_SEGMENT): Changed to 0x42. (GRUB_BOOT_MACHINE_DRIVE_CHECK): Changed to 0x4e. (GRUB_BOOT_MACHINE_LIST_SIZE): Increased to 12. * include/grub/types.h (grub_off_t): Unconditionally set to grub_uint64_t. (grub_disk_addr_t): Changed to grub_uint64_t. * include/grub/partition.h (struct grub_partition): Change the types of "start", "len" and "offset" to grub_disk_addr_t, grub_uint64_t and grub_disk_addr_t, respectively. (grub_partition_get_start): Return grub_disk_addr_t. (grub_partition_get_len): Return grub_uint64_t. * include/grub/misc.h (grub_strtoull): New prototype. (grub_divmod64): Likewise. * include/grub/fshelp.h (grub_fshelp_read_file): Change the types of SECTOR, LEN and FILESIZE to grub_disk_addr_t, grub_size_t and grub_off_t, respectively. All callers and references changed. * include/grub/fs.h (struct grub_fs): Change the type of LEN to grub_size_t in "read". All callers and references changed. * include/grub/file.h (struct grub_file): Change the types of "offset" and "size" to grub_off_t and grub_off_t, respectively. Change the type of SECTOR to grub_disk_addr_t in "read_hook". (grub_file_read): Change the type of LEN to grub_size_t. (grub_file_seek): Return grub_off_t. Change the type of OFFSET to grub_off_t. (grub_file_size): Return grub_off_t. (grub_file_tell): Likewise. All callers and references changed. * include/grub/disk.h (struct grub_disk_dev): Change the types of SECTOR and SIZE to grub_disk_addr_t and grub_size_t in "read" and "write". (struct grub_disk): Change the type of "total_sectors" to grub_uint64_t. Change the type of SECTOR to grub_disk_addr_t in "read_hook". (grub_disk_read): Change the types of SECTOR, OFFSET and SIZE to grub_disk_addr_t, grub_off_t and grub_size_t, respectively. (grub_disk_write): Likewise. All callers and references changed. * fs/iso9660.c (grub_iso9660_susp_iterate): Cast parameters to char * for grub_strncmp to silence gcc. (grub_iso9660_mount): Likewise. (grub_iso9660_mount): Likewise. (grub_iso9660_read_symlink): Likewise. Also, remove the nonsense return statement. (grub_iso9660_iterate_dir): Likewise. (grub_iso9660_label): Cast DATA->VOLDESC.VOLNAME to char *. * fs/hfs.c (grub_hfs_read_file): Change the types of SECTOR and LEN to grub_disk_addr_t and grub_size_t, respectively. * fs/hfsplus.c (grub_hfsplus_read_file): Likewise. * fs/jfs.c (grub_jfs_read_file): Likewise. * fs/minix.c (grub_jfs_read_file): Likewise. * fs/sfs.c (grub_jfs_read_file): Likewise. * fs/ufs.c (grub_jfs_read_file): Likewise. * fs/xfs.c (grub_jfs_read_file): Likewise. * fs/fat.c (grub_fat_read_data): Change the types of SECTOR, LEN and SIZE to grub_disk_addr_t, grub_size_t and grub_size_t, respectively. * fs/ext2.c (grub_ext2_read_block): When an error happens, set BLKNR to -1 instead of returning GRUB_ERRNO. (grub_ext2_read_file): Change the types of SECTOR and LEN to grub_disk_addr_t and grub_size_t, respectively. * fs/affs.c (grub_affs_read_file): Change the types of SECTOR and LEN to grub_disk_addr_t and grub_size_t, respectively. * font/manager.c (grub_font_get_glyph): Cast BITMAP to char * for grub_file_read. * disk/ieee1275/ofdisk.c (grub_ofdisk_read): Fix the format string. Do not cast SECTOR explicitly. * disk/i386/pc/biosdisk.c (grub_biosdisk_open): Change the type of TOTAL_SECTORS to grub_uint64_t. Do not mask DRP->TOTAL_SECTORS. (grub_biosdisk_rw): Change the types of SECTOR and SIZE to grub_disk_addr_t and grub_size_t, respectively. If the sector is over 2TB and LBA mode is not supported, raise an error. (get_safe_sectors): New function. (grub_biosdisk_read): Use get_safe_sectors. (grub_biosdisk_write): Likewise. * disk/efi/efidisk.c (grub_efidisk_read): Fix the format string. (grub_efidisk_write): Likewise. * disk/loopback.c (delete_loopback): Cosmetic changes. (grub_cmd_loopback): Likewise. Also, test NEWDEV->FILENAME correctly. (grub_loopback_open): Likewise. (grub_loopback_read): Likewise. Also, change the type of POS to grub_off_t, and fix the usage of grub_memset. * commands/i386/pc/play.c: Include grub/machine/time.h. * commands/ls.c (grub_ls_list_files): Use "llu" instead of "d" to print FILE->SIZE. * commands/configfile.c: Include grub/env.h. * commands/cmp.c (grub_cmd_cmp): Do not use ERR, but use GRUB_ERRNO directly instead. Change the type of POS to grub_off_t. Follow the coding standard. * commands/blocklist.c: Include grub/partition.h. (grub_cmd_blocklist): Return an error if the underlying device is not a disk. Take the starting sector of a partition into account, if a partition is used. * boot/i386/pc/diskboot.S (bootloop): Adapted to the new offset of a length field. (lba_mode): Support 64-bit addresses. (chs_mode): Likewise. (copy_buffer): Adapted to the new offsets of a length field and a segment field. (blocklist_default_start): Allocate 64-bit space. * boot/i386/pc/boot.S (force_lba): Removed. (boot_drive): Moved to under KERNEL_SECTOR. (kernel_sector): Moved to under KENREL_SEGMENT. Allocate 64-bit space. (real_start): Set %si earlier. Remove code for FORCE_LBA, since it is useless. (lba_mode): Refactored to support a 64-bit address. More size optimization. (setup_sectors): Likewise.
2006-06-04 15:56:55 +00:00
grub_ext2_read (grub_file_t file, char *buf, grub_size_t len)
{
struct grub_ext2_data *data = (struct grub_ext2_data *) file->data;
return grub_ext2_read_file (&data->diropen, file->read_hook,
file->offset, len, buf);
}
static grub_err_t
grub_ext2_dir (grub_device_t device, const char *path,
2009-04-05 Vladimir Serbinenko <phcoder@gmail.com> Support for mtime and further expandability of dir command * include/grub/lib/datetime.h: moved to ... * include/grub/datetime.h: ... moved here and added declaration of grub_unixtime2datetime. All users updated * include/grub/fs.h: new syntax for dir and mtime functionin struct grub_fs * include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK and GRUB_FSHELP_FLAGS_MASK * commands/ls.c (grub_ls_list_files): Write mtime in long format * fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime (grub_ext2_mtime): new function * fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime (grub_hfsplus_mtime): new function * fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition (GRUB_UFS_ATTR_FILE): likewise (GRUB_UFS_ATTR_LNK): likewise (struct grub_ufs_sblock): new fields mtime (grub_ufs_read_inode): new parameter to read inode to a separate buffer all users updated (grub_ufs_dir): mtime support (grub_ufs_mtime): new function * fs/affs.c (grub_affs_dir): use new dir syntax * fs/afs.c (grub_afs_dir): likewise * fs/cpio.c (grub_cpio_dir): likewise * fs/fat.c (grub_fat_find_dir): likewise * fs/hfs.c (grub_hfs_dir): likewise * fs/iso9660.c (grub_iso9660_dir): likewise * fs/jfs.c (grub_jfs_dir): likewise * fs/minix.c (grub_minix_dir): likewise * fs/ntfs.c (grub_ntfs_dir): likewise * fs/reiserfs.c (grub_reiserfs_dir): likewise * fs/sfs.c (grub_sfs_dir): likewise * fs/xfs.c (grub_xfs_dir): likewise * util/hostfs.c (grub_hostfs_dir): likewise * lib/datetime.c: moved to ... * normal/datetime.c: ... moved here (grub_unixtime2datetime): new function * kern/rescue.c (grub_rescue_print_files): use new dir syntax * normal/completition.c (iterate_dir): use new dir syntax * normal/misc.c (grub_normal_print_device_info): tell the last modification time of a volume * kern/fs.c (grub_fs_probe): updated dummy function to use new syntax * conf/common.rmk: added lib/datetime.c to ls.mod * conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c (normal_mod_SOURCES): likewise (datetime_mod_SOURCES): Removed lib/datetime.c * conf/i386-efi.rmk: likewise * conf/i386-ieee1275.rmk: likewise * conf/i386-pc.rmk: likewise * conf/powerpc-ieee1275.rmk: likewise * conf/sparc64-ieee1275.rmk: likewise * conf/x86_64-efi.rmk: likewise
2009-04-05 20:19:05 +00:00
int (*hook) (const char *filename,
const struct grub_dirhook_info *info))
{
struct grub_ext2_data *data = 0;;
struct grub_fshelp_node *fdiro = 0;
auto int NESTED_FUNC_ATTR iterate (const char *filename,
enum grub_fshelp_filetype filetype,
grub_fshelp_node_t node);
int NESTED_FUNC_ATTR iterate (const char *filename,
enum grub_fshelp_filetype filetype,
grub_fshelp_node_t node)
{
2009-04-05 Vladimir Serbinenko <phcoder@gmail.com> Support for mtime and further expandability of dir command * include/grub/lib/datetime.h: moved to ... * include/grub/datetime.h: ... moved here and added declaration of grub_unixtime2datetime. All users updated * include/grub/fs.h: new syntax for dir and mtime functionin struct grub_fs * include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK and GRUB_FSHELP_FLAGS_MASK * commands/ls.c (grub_ls_list_files): Write mtime in long format * fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime (grub_ext2_mtime): new function * fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime (grub_hfsplus_mtime): new function * fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition (GRUB_UFS_ATTR_FILE): likewise (GRUB_UFS_ATTR_LNK): likewise (struct grub_ufs_sblock): new fields mtime (grub_ufs_read_inode): new parameter to read inode to a separate buffer all users updated (grub_ufs_dir): mtime support (grub_ufs_mtime): new function * fs/affs.c (grub_affs_dir): use new dir syntax * fs/afs.c (grub_afs_dir): likewise * fs/cpio.c (grub_cpio_dir): likewise * fs/fat.c (grub_fat_find_dir): likewise * fs/hfs.c (grub_hfs_dir): likewise * fs/iso9660.c (grub_iso9660_dir): likewise * fs/jfs.c (grub_jfs_dir): likewise * fs/minix.c (grub_minix_dir): likewise * fs/ntfs.c (grub_ntfs_dir): likewise * fs/reiserfs.c (grub_reiserfs_dir): likewise * fs/sfs.c (grub_sfs_dir): likewise * fs/xfs.c (grub_xfs_dir): likewise * util/hostfs.c (grub_hostfs_dir): likewise * lib/datetime.c: moved to ... * normal/datetime.c: ... moved here (grub_unixtime2datetime): new function * kern/rescue.c (grub_rescue_print_files): use new dir syntax * normal/completition.c (iterate_dir): use new dir syntax * normal/misc.c (grub_normal_print_device_info): tell the last modification time of a volume * kern/fs.c (grub_fs_probe): updated dummy function to use new syntax * conf/common.rmk: added lib/datetime.c to ls.mod * conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c (normal_mod_SOURCES): likewise (datetime_mod_SOURCES): Removed lib/datetime.c * conf/i386-efi.rmk: likewise * conf/i386-ieee1275.rmk: likewise * conf/i386-pc.rmk: likewise * conf/powerpc-ieee1275.rmk: likewise * conf/sparc64-ieee1275.rmk: likewise * conf/x86_64-efi.rmk: likewise
2009-04-05 20:19:05 +00:00
struct grub_dirhook_info info;
grub_memset (&info, 0, sizeof (info));
if (! node->inode_read)
{
grub_ext2_read_inode (data, node->ino, &node->inode);
if (!grub_errno)
node->inode_read = 1;
grub_errno = GRUB_ERR_NONE;
}
if (node->inode_read)
{
info.mtimeset = 1;
info.mtime = grub_le_to_cpu32 (node->inode.mtime);
}
info.dir = ((filetype & GRUB_FSHELP_TYPE_MASK) == GRUB_FSHELP_DIR);
grub_free (node);
2009-04-05 Vladimir Serbinenko <phcoder@gmail.com> Support for mtime and further expandability of dir command * include/grub/lib/datetime.h: moved to ... * include/grub/datetime.h: ... moved here and added declaration of grub_unixtime2datetime. All users updated * include/grub/fs.h: new syntax for dir and mtime functionin struct grub_fs * include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK and GRUB_FSHELP_FLAGS_MASK * commands/ls.c (grub_ls_list_files): Write mtime in long format * fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime (grub_ext2_mtime): new function * fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime (grub_hfsplus_mtime): new function * fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition (GRUB_UFS_ATTR_FILE): likewise (GRUB_UFS_ATTR_LNK): likewise (struct grub_ufs_sblock): new fields mtime (grub_ufs_read_inode): new parameter to read inode to a separate buffer all users updated (grub_ufs_dir): mtime support (grub_ufs_mtime): new function * fs/affs.c (grub_affs_dir): use new dir syntax * fs/afs.c (grub_afs_dir): likewise * fs/cpio.c (grub_cpio_dir): likewise * fs/fat.c (grub_fat_find_dir): likewise * fs/hfs.c (grub_hfs_dir): likewise * fs/iso9660.c (grub_iso9660_dir): likewise * fs/jfs.c (grub_jfs_dir): likewise * fs/minix.c (grub_minix_dir): likewise * fs/ntfs.c (grub_ntfs_dir): likewise * fs/reiserfs.c (grub_reiserfs_dir): likewise * fs/sfs.c (grub_sfs_dir): likewise * fs/xfs.c (grub_xfs_dir): likewise * util/hostfs.c (grub_hostfs_dir): likewise * lib/datetime.c: moved to ... * normal/datetime.c: ... moved here (grub_unixtime2datetime): new function * kern/rescue.c (grub_rescue_print_files): use new dir syntax * normal/completition.c (iterate_dir): use new dir syntax * normal/misc.c (grub_normal_print_device_info): tell the last modification time of a volume * kern/fs.c (grub_fs_probe): updated dummy function to use new syntax * conf/common.rmk: added lib/datetime.c to ls.mod * conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c (normal_mod_SOURCES): likewise (datetime_mod_SOURCES): Removed lib/datetime.c * conf/i386-efi.rmk: likewise * conf/i386-ieee1275.rmk: likewise * conf/i386-pc.rmk: likewise * conf/powerpc-ieee1275.rmk: likewise * conf/sparc64-ieee1275.rmk: likewise * conf/x86_64-efi.rmk: likewise
2009-04-05 20:19:05 +00:00
return hook (filename, &info);
}
grub_dl_ref (my_mod);
data = grub_ext2_mount (device->disk);
if (! data)
goto fail;
grub_fshelp_find_file (path, &data->diropen, &fdiro, grub_ext2_iterate_dir,
grub_ext2_read_symlink, GRUB_FSHELP_DIR);
if (grub_errno)
goto fail;
grub_ext2_iterate_dir (fdiro, iterate);
fail:
if (fdiro != &data->diropen)
grub_free (fdiro);
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
static grub_err_t
grub_ext2_label (grub_device_t device, char **label)
{
struct grub_ext2_data *data;
grub_disk_t disk = device->disk;
grub_dl_ref (my_mod);
data = grub_ext2_mount (disk);
if (data)
*label = grub_strndup (data->sblock.volume_name, 14);
else
*label = NULL;
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
static grub_err_t
grub_ext2_uuid (grub_device_t device, char **uuid)
{
struct grub_ext2_data *data;
grub_disk_t disk = device->disk;
grub_dl_ref (my_mod);
data = grub_ext2_mount (disk);
if (data)
{
*uuid = grub_malloc (40 + sizeof ('\0'));
grub_sprintf (*uuid, "%04x%04x-%04x-%04x-%04x-%04x%04x%04x",
grub_be_to_cpu16 (data->sblock.uuid[0]), grub_be_to_cpu16 (data->sblock.uuid[1]),
grub_be_to_cpu16 (data->sblock.uuid[2]), grub_be_to_cpu16 (data->sblock.uuid[3]),
grub_be_to_cpu16 (data->sblock.uuid[4]), grub_be_to_cpu16 (data->sblock.uuid[5]),
grub_be_to_cpu16 (data->sblock.uuid[6]), grub_be_to_cpu16 (data->sblock.uuid[7]));
}
else
*uuid = NULL;
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
2009-04-05 Vladimir Serbinenko <phcoder@gmail.com> Support for mtime and further expandability of dir command * include/grub/lib/datetime.h: moved to ... * include/grub/datetime.h: ... moved here and added declaration of grub_unixtime2datetime. All users updated * include/grub/fs.h: new syntax for dir and mtime functionin struct grub_fs * include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK and GRUB_FSHELP_FLAGS_MASK * commands/ls.c (grub_ls_list_files): Write mtime in long format * fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime (grub_ext2_mtime): new function * fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime (grub_hfsplus_mtime): new function * fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition (GRUB_UFS_ATTR_FILE): likewise (GRUB_UFS_ATTR_LNK): likewise (struct grub_ufs_sblock): new fields mtime (grub_ufs_read_inode): new parameter to read inode to a separate buffer all users updated (grub_ufs_dir): mtime support (grub_ufs_mtime): new function * fs/affs.c (grub_affs_dir): use new dir syntax * fs/afs.c (grub_afs_dir): likewise * fs/cpio.c (grub_cpio_dir): likewise * fs/fat.c (grub_fat_find_dir): likewise * fs/hfs.c (grub_hfs_dir): likewise * fs/iso9660.c (grub_iso9660_dir): likewise * fs/jfs.c (grub_jfs_dir): likewise * fs/minix.c (grub_minix_dir): likewise * fs/ntfs.c (grub_ntfs_dir): likewise * fs/reiserfs.c (grub_reiserfs_dir): likewise * fs/sfs.c (grub_sfs_dir): likewise * fs/xfs.c (grub_xfs_dir): likewise * util/hostfs.c (grub_hostfs_dir): likewise * lib/datetime.c: moved to ... * normal/datetime.c: ... moved here (grub_unixtime2datetime): new function * kern/rescue.c (grub_rescue_print_files): use new dir syntax * normal/completition.c (iterate_dir): use new dir syntax * normal/misc.c (grub_normal_print_device_info): tell the last modification time of a volume * kern/fs.c (grub_fs_probe): updated dummy function to use new syntax * conf/common.rmk: added lib/datetime.c to ls.mod * conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c (normal_mod_SOURCES): likewise (datetime_mod_SOURCES): Removed lib/datetime.c * conf/i386-efi.rmk: likewise * conf/i386-ieee1275.rmk: likewise * conf/i386-pc.rmk: likewise * conf/powerpc-ieee1275.rmk: likewise * conf/sparc64-ieee1275.rmk: likewise * conf/x86_64-efi.rmk: likewise
2009-04-05 20:19:05 +00:00
/* Get mtime. */
static grub_err_t
grub_ext2_mtime (grub_device_t device, grub_int32_t *tm)
{
struct grub_ext2_data *data;
grub_disk_t disk = device->disk;
grub_dl_ref (my_mod);
data = grub_ext2_mount (disk);
if (!data)
*tm = 0;
else
*tm = grub_le_to_cpu32 (data->sblock.utime);
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
static struct grub_fs grub_ext2_fs =
{
.name = "ext2",
.dir = grub_ext2_dir,
.open = grub_ext2_open,
.read = grub_ext2_read,
.close = grub_ext2_close,
.label = grub_ext2_label,
.uuid = grub_ext2_uuid,
2009-04-05 Vladimir Serbinenko <phcoder@gmail.com> Support for mtime and further expandability of dir command * include/grub/lib/datetime.h: moved to ... * include/grub/datetime.h: ... moved here and added declaration of grub_unixtime2datetime. All users updated * include/grub/fs.h: new syntax for dir and mtime functionin struct grub_fs * include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK and GRUB_FSHELP_FLAGS_MASK * commands/ls.c (grub_ls_list_files): Write mtime in long format * fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime (grub_ext2_mtime): new function * fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime (grub_hfsplus_mtime): new function * fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition (GRUB_UFS_ATTR_FILE): likewise (GRUB_UFS_ATTR_LNK): likewise (struct grub_ufs_sblock): new fields mtime (grub_ufs_read_inode): new parameter to read inode to a separate buffer all users updated (grub_ufs_dir): mtime support (grub_ufs_mtime): new function * fs/affs.c (grub_affs_dir): use new dir syntax * fs/afs.c (grub_afs_dir): likewise * fs/cpio.c (grub_cpio_dir): likewise * fs/fat.c (grub_fat_find_dir): likewise * fs/hfs.c (grub_hfs_dir): likewise * fs/iso9660.c (grub_iso9660_dir): likewise * fs/jfs.c (grub_jfs_dir): likewise * fs/minix.c (grub_minix_dir): likewise * fs/ntfs.c (grub_ntfs_dir): likewise * fs/reiserfs.c (grub_reiserfs_dir): likewise * fs/sfs.c (grub_sfs_dir): likewise * fs/xfs.c (grub_xfs_dir): likewise * util/hostfs.c (grub_hostfs_dir): likewise * lib/datetime.c: moved to ... * normal/datetime.c: ... moved here (grub_unixtime2datetime): new function * kern/rescue.c (grub_rescue_print_files): use new dir syntax * normal/completition.c (iterate_dir): use new dir syntax * normal/misc.c (grub_normal_print_device_info): tell the last modification time of a volume * kern/fs.c (grub_fs_probe): updated dummy function to use new syntax * conf/common.rmk: added lib/datetime.c to ls.mod * conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c (normal_mod_SOURCES): likewise (datetime_mod_SOURCES): Removed lib/datetime.c * conf/i386-efi.rmk: likewise * conf/i386-ieee1275.rmk: likewise * conf/i386-pc.rmk: likewise * conf/powerpc-ieee1275.rmk: likewise * conf/sparc64-ieee1275.rmk: likewise * conf/x86_64-efi.rmk: likewise
2009-04-05 20:19:05 +00:00
.mtime = grub_ext2_mtime,
.next = 0
};
2005-11-13 Marco Gerards <mgerards@xs4all.nl> * geninit.sh: New file. * geninitheader.sh: Likewise. * commands/boot.c (grub_boot_init, grub_boot_fini): Removed. * commands/cat.c (grub_cat_init, grub_cat_fini): Likewise. * commands/cmp.c (grub_cmp_init, grub_cmp_fini): Likewise. * commands/configfile.c (grub_configfile_init) (grub_configfile_fini): Likewise. * commands/default.c (grub_default_init, grub_default_fini): Likewise. * commands/help.c (grub_help_init, grub_help_fini): Likewise. * commands/ls.c (grub_ls_init, grub_ls_fini): Likewise. * commands/search.c (grub_search_init, grub_search_fini): Likewise. * commands/terminal.c (grub_terminal_init, grub_terminal_fini): Likewise. * commands/test.c (grub_test_init, grub_test_fini): Likewise. * commands/timeout.c (grub_timeout_init, grub_timeout_fini): Likewise. * commands/i386/pc/halt.c (grub_halt_init, grub_halt_fini): Likewise. * commands/iee1275/halt.c (grub_halt_init, grub_halt_fini): Likewise. * commands/i386/pc/reboot.c (grub_reboot_init, grub_reboot_fini): Likewise. * commands/iee1275/reboot.c (grub_reboot_init, grub_reboot_fini): Likewise. * disk/loopback.c (grub_loop_init, grub_loop_fini): Likewise. * fs/affs.c (grub_affs_init, grub_affs_fini): Likewise. * fs/ext2.c (grub_ext2_init, grub_ext2_fini): Likewise. * fs/fat.c (grub_fat_init, grub_fat_fini): Likewise. * fs/hfs.c (grub_hfs_init, grub_hfs_fini): Likewise. * fs/iso9660.c (grub_iso9660_init, grub_iso9660_fini): Likewise. * fs/jfs.c (grub_jfs_init, grub_jfs_fini): Likewise. * fs/minix.c (grub_minix_init, grub_minix_fini): Likewise. * fs/sfs.c (grub_sfs_init, grub_sfs_fini): Likewise. * fs/ufs.c (grub_ufs_init, grub_ufs_fini): Likewise. * fs/xfs.c (grub_xfs_init, grub_xfs_fini): Likewise. * normal/main.c (grub_normal_init, grub_normal_fini): Likewise. * partmap/amiga.c (grub_amiga_partition_map_init) (grub_amiga_partition_map_fini): Likewise. * partmap/apple.c (grub_apple_partition_map_init) (grub_apple_partition_map_fini): Likewise. * partmap/pc.c (grub_pc_partition_map_init) (grub_pc_partition_map_fini): Likewise. * partmap/sun.c (grub_sun_partition_map_init, grub_sun_partition_map_fini): Likewise. * term/terminfo.c (grub_terminal_init, grub_terminal_fini): Likewise. * util/grub-emu.c: Include <grub_modules_init.h>. (main): Don't initialize and de-initialize any modules directly, use `grub_init_all' and `grub_fini_all' instead. * term/i386/pc/vesafb.c (grub_vesafb_init): Renamed to `grub_vesafb_mod_init'. (grub_vesafb_fini): Renamed to `grub_vesafb_mod_fini'. Updated all users. * term/i386/pc/vga.c (grub_vga_init): Renamed to `grub_vga_mod_init'. Updated all users. (grub_vga_fini): Renamed to `grub_vga_mod_fini'. * conf/i386-pc.rmk (grub_emu_SOURCES): Add `grub_emu_init.c'. (grub_modules_init.lst, grub_modules_init.h, grub_emu_init.c): New rules. * include/grub/dl.h (GRUB_MOD_INIT): Add argument `name'. Generate a function to initialize the module in utilities. Updated all callers. (GRUB_MOD_FINI): Add argument `name'. Generate a function to initialize the module in utilities. Updated all callers.
2005-11-13 15:47:09 +00:00
GRUB_MOD_INIT(ext2)
{
grub_fs_register (&grub_ext2_fs);
my_mod = mod;
}
2005-11-13 Marco Gerards <mgerards@xs4all.nl> * geninit.sh: New file. * geninitheader.sh: Likewise. * commands/boot.c (grub_boot_init, grub_boot_fini): Removed. * commands/cat.c (grub_cat_init, grub_cat_fini): Likewise. * commands/cmp.c (grub_cmp_init, grub_cmp_fini): Likewise. * commands/configfile.c (grub_configfile_init) (grub_configfile_fini): Likewise. * commands/default.c (grub_default_init, grub_default_fini): Likewise. * commands/help.c (grub_help_init, grub_help_fini): Likewise. * commands/ls.c (grub_ls_init, grub_ls_fini): Likewise. * commands/search.c (grub_search_init, grub_search_fini): Likewise. * commands/terminal.c (grub_terminal_init, grub_terminal_fini): Likewise. * commands/test.c (grub_test_init, grub_test_fini): Likewise. * commands/timeout.c (grub_timeout_init, grub_timeout_fini): Likewise. * commands/i386/pc/halt.c (grub_halt_init, grub_halt_fini): Likewise. * commands/iee1275/halt.c (grub_halt_init, grub_halt_fini): Likewise. * commands/i386/pc/reboot.c (grub_reboot_init, grub_reboot_fini): Likewise. * commands/iee1275/reboot.c (grub_reboot_init, grub_reboot_fini): Likewise. * disk/loopback.c (grub_loop_init, grub_loop_fini): Likewise. * fs/affs.c (grub_affs_init, grub_affs_fini): Likewise. * fs/ext2.c (grub_ext2_init, grub_ext2_fini): Likewise. * fs/fat.c (grub_fat_init, grub_fat_fini): Likewise. * fs/hfs.c (grub_hfs_init, grub_hfs_fini): Likewise. * fs/iso9660.c (grub_iso9660_init, grub_iso9660_fini): Likewise. * fs/jfs.c (grub_jfs_init, grub_jfs_fini): Likewise. * fs/minix.c (grub_minix_init, grub_minix_fini): Likewise. * fs/sfs.c (grub_sfs_init, grub_sfs_fini): Likewise. * fs/ufs.c (grub_ufs_init, grub_ufs_fini): Likewise. * fs/xfs.c (grub_xfs_init, grub_xfs_fini): Likewise. * normal/main.c (grub_normal_init, grub_normal_fini): Likewise. * partmap/amiga.c (grub_amiga_partition_map_init) (grub_amiga_partition_map_fini): Likewise. * partmap/apple.c (grub_apple_partition_map_init) (grub_apple_partition_map_fini): Likewise. * partmap/pc.c (grub_pc_partition_map_init) (grub_pc_partition_map_fini): Likewise. * partmap/sun.c (grub_sun_partition_map_init, grub_sun_partition_map_fini): Likewise. * term/terminfo.c (grub_terminal_init, grub_terminal_fini): Likewise. * util/grub-emu.c: Include <grub_modules_init.h>. (main): Don't initialize and de-initialize any modules directly, use `grub_init_all' and `grub_fini_all' instead. * term/i386/pc/vesafb.c (grub_vesafb_init): Renamed to `grub_vesafb_mod_init'. (grub_vesafb_fini): Renamed to `grub_vesafb_mod_fini'. Updated all users. * term/i386/pc/vga.c (grub_vga_init): Renamed to `grub_vga_mod_init'. Updated all users. (grub_vga_fini): Renamed to `grub_vga_mod_fini'. * conf/i386-pc.rmk (grub_emu_SOURCES): Add `grub_emu_init.c'. (grub_modules_init.lst, grub_modules_init.h, grub_emu_init.c): New rules. * include/grub/dl.h (GRUB_MOD_INIT): Add argument `name'. Generate a function to initialize the module in utilities. Updated all callers. (GRUB_MOD_FINI): Add argument `name'. Generate a function to initialize the module in utilities. Updated all callers.
2005-11-13 15:47:09 +00:00
GRUB_MOD_FINI(ext2)
{
grub_fs_unregister (&grub_ext2_fs);
}