2004-09-11 Marco Gerards <metgerards@student.han.nl>
* conf/i386-pc.rmk (kernel_img_SOURCES): Added kern/fshelp.c. (grub_mkimage_LDFLAGS): Likewise. (grub_emu_SOURCES): Likewise. (kernel_img_HEADERS): Added fshelp.h. * fs/ext2.c: Include <grub/fshelp.h>. (FILETYPE_REG): New macro. (FILETYPE_INO_REG): Likewise. (grub_ext_sblock): Renamed to `grub_ext2_sblock'. Changed all users. (ext2_block_group): Renamed to `grub_ext2_block_group'. Changed all users. (grub_fshelp_node): New struct. (grub_ext2_data): Added member `diropen'. Changed member `inode' to a pointer. (grub_ext2_get_file_block): Removed function. (grub_ext2_read_block): New function. (grub_ext2_read_file): Replaced parameter `data' by `node'. This function was written. (grub_ext2_mount): Read the root inode. Create a diropen struct. (grub_ext2_find_file): Removed function. (grub_ext2_read_symlink): New function. (grub_ext2_iterate_dir): Likewise. (grub_ext2_open): Rewritten. (grub_ext2_dir): Rewritten. * include/grub/fshelp.h: New file. * fs/fshelp.c: Likewise.
This commit is contained in:
marco_g
parent
3c52136a94
commit
2c1f4ce368
29
ChangeLog
29
ChangeLog
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@ -1,3 +1,32 @@
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2004-09-11 Marco Gerards <metgerards@student.han.nl>
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* conf/i386-pc.rmk (kernel_img_SOURCES): Added kern/fshelp.c.
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(grub_mkimage_LDFLAGS): Likewise.
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(grub_emu_SOURCES): Likewise.
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(kernel_img_HEADERS): Added fshelp.h.
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* fs/ext2.c: Include <grub/fshelp.h>.
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(FILETYPE_REG): New macro.
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(FILETYPE_INO_REG): Likewise.
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(grub_ext_sblock): Renamed to `grub_ext2_sblock'.
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Changed all users.
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(ext2_block_group): Renamed to `grub_ext2_block_group'. Changed
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all users.
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(grub_fshelp_node): New struct.
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(grub_ext2_data): Added member `diropen'. Changed member `inode'
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to a pointer.
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(grub_ext2_get_file_block): Removed function.
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(grub_ext2_read_block): New function.
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(grub_ext2_read_file): Replaced parameter `data' by `node'.
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This function was written.
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(grub_ext2_mount): Read the root inode. Create a diropen struct.
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(grub_ext2_find_file): Removed function.
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(grub_ext2_read_symlink): New function.
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(grub_ext2_iterate_dir): Likewise.
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(grub_ext2_open): Rewritten.
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(grub_ext2_dir): Rewritten.
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* include/grub/fshelp.h: New file.
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* fs/fshelp.c: Likewise.
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2004-09-10 Yoshinori K. Okuji <okuji@enbug.org>
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* normal/menu.c: Include grub/loader.h and grub/machine/time.h.
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@ -311,11 +311,11 @@ grub_mkimage_LDFLAGS = -llzo
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grub_setup_SOURCES = util/i386/pc/grub-setup.c util/i386/pc/biosdisk.c \
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util/misc.c util/i386/pc/getroot.c kern/device.c kern/disk.c \
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kern/err.c kern/misc.c disk/i386/pc/partition.c fs/fat.c fs/ext2.c \
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fs/ufs.c fs/minix.c fs/hfs.c fs/jfs.c kern/file.c kern/fs.c kern/env.c
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CLEANFILES += grub-setup grub_setup-util_i386_pc_grub_setup.o grub_setup-util_i386_pc_biosdisk.o grub_setup-util_misc.o grub_setup-util_i386_pc_getroot.o grub_setup-kern_device.o grub_setup-kern_disk.o grub_setup-kern_err.o grub_setup-kern_misc.o grub_setup-disk_i386_pc_partition.o grub_setup-fs_fat.o grub_setup-fs_ext2.o grub_setup-fs_ufs.o grub_setup-fs_minix.o grub_setup-fs_hfs.o grub_setup-fs_jfs.o grub_setup-kern_file.o grub_setup-kern_fs.o grub_setup-kern_env.o
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MOSTLYCLEANFILES += grub_setup-util_i386_pc_grub_setup.d grub_setup-util_i386_pc_biosdisk.d grub_setup-util_misc.d grub_setup-util_i386_pc_getroot.d grub_setup-kern_device.d grub_setup-kern_disk.d grub_setup-kern_err.d grub_setup-kern_misc.d grub_setup-disk_i386_pc_partition.d grub_setup-fs_fat.d grub_setup-fs_ext2.d grub_setup-fs_ufs.d grub_setup-fs_minix.d grub_setup-fs_hfs.d grub_setup-fs_jfs.d grub_setup-kern_file.d grub_setup-kern_fs.d grub_setup-kern_env.d
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fs/ufs.c fs/minix.c fs/hfs.c fs/jfs.c kern/file.c kern/fs.c kern/env.c fs/fshelp.c
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CLEANFILES += grub-setup grub_setup-util_i386_pc_grub_setup.o grub_setup-util_i386_pc_biosdisk.o grub_setup-util_misc.o grub_setup-util_i386_pc_getroot.o grub_setup-kern_device.o grub_setup-kern_disk.o grub_setup-kern_err.o grub_setup-kern_misc.o grub_setup-disk_i386_pc_partition.o grub_setup-fs_fat.o grub_setup-fs_ext2.o grub_setup-fs_ufs.o grub_setup-fs_minix.o grub_setup-fs_hfs.o grub_setup-fs_jfs.o grub_setup-kern_file.o grub_setup-kern_fs.o grub_setup-kern_env.o grub_setup-fs_fshelp.o
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MOSTLYCLEANFILES += grub_setup-util_i386_pc_grub_setup.d grub_setup-util_i386_pc_biosdisk.d grub_setup-util_misc.d grub_setup-util_i386_pc_getroot.d grub_setup-kern_device.d grub_setup-kern_disk.d grub_setup-kern_err.d grub_setup-kern_misc.d grub_setup-disk_i386_pc_partition.d grub_setup-fs_fat.d grub_setup-fs_ext2.d grub_setup-fs_ufs.d grub_setup-fs_minix.d grub_setup-fs_hfs.d grub_setup-fs_jfs.d grub_setup-kern_file.d grub_setup-kern_fs.d grub_setup-kern_env.d grub_setup-fs_fshelp.d
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grub-setup: grub_setup-util_i386_pc_grub_setup.o grub_setup-util_i386_pc_biosdisk.o grub_setup-util_misc.o grub_setup-util_i386_pc_getroot.o grub_setup-kern_device.o grub_setup-kern_disk.o grub_setup-kern_err.o grub_setup-kern_misc.o grub_setup-disk_i386_pc_partition.o grub_setup-fs_fat.o grub_setup-fs_ext2.o grub_setup-fs_ufs.o grub_setup-fs_minix.o grub_setup-fs_hfs.o grub_setup-fs_jfs.o grub_setup-kern_file.o grub_setup-kern_fs.o grub_setup-kern_env.o
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grub-setup: grub_setup-util_i386_pc_grub_setup.o grub_setup-util_i386_pc_biosdisk.o grub_setup-util_misc.o grub_setup-util_i386_pc_getroot.o grub_setup-kern_device.o grub_setup-kern_disk.o grub_setup-kern_err.o grub_setup-kern_misc.o grub_setup-disk_i386_pc_partition.o grub_setup-fs_fat.o grub_setup-fs_ext2.o grub_setup-fs_ufs.o grub_setup-fs_minix.o grub_setup-fs_hfs.o grub_setup-fs_jfs.o grub_setup-kern_file.o grub_setup-kern_fs.o grub_setup-kern_env.o grub_setup-fs_fshelp.o
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$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(grub_setup_LDFLAGS)
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grub_setup-util_i386_pc_grub_setup.o: util/i386/pc/grub-setup.c
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@ -462,9 +462,17 @@ grub_setup-kern_env.d: kern/env.c
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-include grub_setup-kern_env.d
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grub_setup-fs_fshelp.o: fs/fshelp.c
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$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_setup_CFLAGS) -c -o $@ $<
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grub_setup-fs_fshelp.d: fs/fshelp.c
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set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_setup_CFLAGS) -M $< | sed 's,fshelp\.o[ :]*,grub_setup-fs_fshelp.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
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-include grub_setup-fs_fshelp.d
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# For grub
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grub_emu_SOURCES = kern/main.c kern/device.c \
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grub_emu_SOURCES = kern/main.c kern/device.c fs/fshelp.c \
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kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c \
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kern/misc.c kern/loader.c kern/rescue.c kern/term.c \
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disk/i386/pc/partition.c kern/env.c commands/ls.c \
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@ -472,10 +480,10 @@ grub_emu_SOURCES = kern/main.c kern/device.c \
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util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c fs/ufs.c fs/minix.c fs/hfs.c fs/jfs.c\
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normal/cmdline.c normal/command.c normal/main.c normal/menu.c normal/arg.c \
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util/console.c util/grub-emu.c util/misc.c util/i386/pc/getroot.c
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CLEANFILES += grub-emu grub_emu-kern_main.o grub_emu-kern_device.o grub_emu-kern_disk.o grub_emu-kern_dl.o grub_emu-kern_file.o grub_emu-kern_fs.o grub_emu-kern_err.o grub_emu-kern_misc.o grub_emu-kern_loader.o grub_emu-kern_rescue.o grub_emu-kern_term.o grub_emu-disk_i386_pc_partition.o grub_emu-kern_env.o grub_emu-commands_ls.o grub_emu-commands_terminal.o grub_emu-commands_boot.o grub_emu-commands_cmp.o grub_emu-commands_cat.o grub_emu-util_i386_pc_biosdisk.o grub_emu-fs_fat.o grub_emu-fs_ext2.o grub_emu-fs_ufs.o grub_emu-fs_minix.o grub_emu-fs_hfs.o grub_emu-fs_jfs.o grub_emu-normal_cmdline.o grub_emu-normal_command.o grub_emu-normal_main.o grub_emu-normal_menu.o grub_emu-normal_arg.o grub_emu-util_console.o grub_emu-util_grub_emu.o grub_emu-util_misc.o grub_emu-util_i386_pc_getroot.o
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MOSTLYCLEANFILES += grub_emu-kern_main.d grub_emu-kern_device.d grub_emu-kern_disk.d grub_emu-kern_dl.d grub_emu-kern_file.d grub_emu-kern_fs.d grub_emu-kern_err.d grub_emu-kern_misc.d grub_emu-kern_loader.d grub_emu-kern_rescue.d grub_emu-kern_term.d grub_emu-disk_i386_pc_partition.d grub_emu-kern_env.d grub_emu-commands_ls.d grub_emu-commands_terminal.d grub_emu-commands_boot.d grub_emu-commands_cmp.d grub_emu-commands_cat.d grub_emu-util_i386_pc_biosdisk.d grub_emu-fs_fat.d grub_emu-fs_ext2.d grub_emu-fs_ufs.d grub_emu-fs_minix.d grub_emu-fs_hfs.d grub_emu-fs_jfs.d grub_emu-normal_cmdline.d grub_emu-normal_command.d grub_emu-normal_main.d grub_emu-normal_menu.d grub_emu-normal_arg.d grub_emu-util_console.d grub_emu-util_grub_emu.d grub_emu-util_misc.d grub_emu-util_i386_pc_getroot.d
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CLEANFILES += grub-emu grub_emu-kern_main.o grub_emu-kern_device.o grub_emu-fs_fshelp.o grub_emu-kern_disk.o grub_emu-kern_dl.o grub_emu-kern_file.o grub_emu-kern_fs.o grub_emu-kern_err.o grub_emu-kern_misc.o grub_emu-kern_loader.o grub_emu-kern_rescue.o grub_emu-kern_term.o grub_emu-disk_i386_pc_partition.o grub_emu-kern_env.o grub_emu-commands_ls.o grub_emu-commands_terminal.o grub_emu-commands_boot.o grub_emu-commands_cmp.o grub_emu-commands_cat.o grub_emu-util_i386_pc_biosdisk.o grub_emu-fs_fat.o grub_emu-fs_ext2.o grub_emu-fs_ufs.o grub_emu-fs_minix.o grub_emu-fs_hfs.o grub_emu-fs_jfs.o grub_emu-normal_cmdline.o grub_emu-normal_command.o grub_emu-normal_main.o grub_emu-normal_menu.o grub_emu-normal_arg.o grub_emu-util_console.o grub_emu-util_grub_emu.o grub_emu-util_misc.o grub_emu-util_i386_pc_getroot.o
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MOSTLYCLEANFILES += grub_emu-kern_main.d grub_emu-kern_device.d grub_emu-fs_fshelp.d grub_emu-kern_disk.d grub_emu-kern_dl.d grub_emu-kern_file.d grub_emu-kern_fs.d grub_emu-kern_err.d grub_emu-kern_misc.d grub_emu-kern_loader.d grub_emu-kern_rescue.d grub_emu-kern_term.d grub_emu-disk_i386_pc_partition.d grub_emu-kern_env.d grub_emu-commands_ls.d grub_emu-commands_terminal.d grub_emu-commands_boot.d grub_emu-commands_cmp.d grub_emu-commands_cat.d grub_emu-util_i386_pc_biosdisk.d grub_emu-fs_fat.d grub_emu-fs_ext2.d grub_emu-fs_ufs.d grub_emu-fs_minix.d grub_emu-fs_hfs.d grub_emu-fs_jfs.d grub_emu-normal_cmdline.d grub_emu-normal_command.d grub_emu-normal_main.d grub_emu-normal_menu.d grub_emu-normal_arg.d grub_emu-util_console.d grub_emu-util_grub_emu.d grub_emu-util_misc.d grub_emu-util_i386_pc_getroot.d
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grub-emu: grub_emu-kern_main.o grub_emu-kern_device.o grub_emu-kern_disk.o grub_emu-kern_dl.o grub_emu-kern_file.o grub_emu-kern_fs.o grub_emu-kern_err.o grub_emu-kern_misc.o grub_emu-kern_loader.o grub_emu-kern_rescue.o grub_emu-kern_term.o grub_emu-disk_i386_pc_partition.o grub_emu-kern_env.o grub_emu-commands_ls.o grub_emu-commands_terminal.o grub_emu-commands_boot.o grub_emu-commands_cmp.o grub_emu-commands_cat.o grub_emu-util_i386_pc_biosdisk.o grub_emu-fs_fat.o grub_emu-fs_ext2.o grub_emu-fs_ufs.o grub_emu-fs_minix.o grub_emu-fs_hfs.o grub_emu-fs_jfs.o grub_emu-normal_cmdline.o grub_emu-normal_command.o grub_emu-normal_main.o grub_emu-normal_menu.o grub_emu-normal_arg.o grub_emu-util_console.o grub_emu-util_grub_emu.o grub_emu-util_misc.o grub_emu-util_i386_pc_getroot.o
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grub-emu: grub_emu-kern_main.o grub_emu-kern_device.o grub_emu-fs_fshelp.o grub_emu-kern_disk.o grub_emu-kern_dl.o grub_emu-kern_file.o grub_emu-kern_fs.o grub_emu-kern_err.o grub_emu-kern_misc.o grub_emu-kern_loader.o grub_emu-kern_rescue.o grub_emu-kern_term.o grub_emu-disk_i386_pc_partition.o grub_emu-kern_env.o grub_emu-commands_ls.o grub_emu-commands_terminal.o grub_emu-commands_boot.o grub_emu-commands_cmp.o grub_emu-commands_cat.o grub_emu-util_i386_pc_biosdisk.o grub_emu-fs_fat.o grub_emu-fs_ext2.o grub_emu-fs_ufs.o grub_emu-fs_minix.o grub_emu-fs_hfs.o grub_emu-fs_jfs.o grub_emu-normal_cmdline.o grub_emu-normal_command.o grub_emu-normal_main.o grub_emu-normal_menu.o grub_emu-normal_arg.o grub_emu-util_console.o grub_emu-util_grub_emu.o grub_emu-util_misc.o grub_emu-util_i386_pc_getroot.o
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$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(grub_emu_LDFLAGS)
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grub_emu-kern_main.o: kern/main.c
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@ -494,6 +502,14 @@ grub_emu-kern_device.d: kern/device.c
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-include grub_emu-kern_device.d
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grub_emu-fs_fshelp.o: fs/fshelp.c
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$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
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grub_emu-fs_fshelp.d: fs/fshelp.c
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set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -M $< | sed 's,fshelp\.o[ :]*,grub_emu-fs_fshelp.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
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-include grub_emu-fs_fshelp.d
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grub_emu-kern_disk.o: kern/disk.c
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$(BUILD_CC) -Ikern -I$(srcdir)/kern $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
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@ -772,7 +788,7 @@ genmoddep-util_genmoddep.d: util/genmoddep.c
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# Modules.
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pkgdata_MODULES = _chain.mod _linux.mod fat.mod ufs.mod ext2.mod minix.mod \
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hfs.mod jfs.mod normal.mod hello.mod vga.mod font.mod _multiboot.mod ls.mod \
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boot.mod cmp.mod cat.mod terminal.mod
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boot.mod cmp.mod cat.mod terminal.mod fshelp.mod
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# For _chain.mod.
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_chain_mod_SOURCES = loader/i386/pc/chainloader.c
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@ -813,6 +829,45 @@ _chain_mod-loader_i386_pc_chainloader.d: loader/i386/pc/chainloader.c
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_chain_mod_CFLAGS = $(COMMON_CFLAGS)
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# For fshelp.mod.
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fshelp_mod_SOURCES = fs/fshelp.c
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CLEANFILES += fshelp.mod mod-fshelp.o mod-fshelp.c pre-fshelp.o fshelp_mod-fs_fshelp.o def-fshelp.lst und-fshelp.lst
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MOSTLYCLEANFILES += fshelp_mod-fs_fshelp.d
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DEFSYMFILES += def-fshelp.lst
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UNDSYMFILES += und-fshelp.lst
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fshelp.mod: pre-fshelp.o mod-fshelp.o
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-rm -f $@
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$(LD) -r -o $@ $^
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$(STRIP) --strip-unneeded -K grub_mod_init -K grub_mod_fini -R .note -R .comment $@
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pre-fshelp.o: fshelp_mod-fs_fshelp.o
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-rm -f $@
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$(LD) -r -o $@ $^
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mod-fshelp.o: mod-fshelp.c
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$(CC) $(CPPFLAGS) $(CFLAGS) $(fshelp_mod_CFLAGS) -c -o $@ $<
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mod-fshelp.c: moddep.lst genmodsrc.sh
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sh $(srcdir)/genmodsrc.sh 'fshelp' $< > $@ || (rm -f $@; exit 1)
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def-fshelp.lst: pre-fshelp.o
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$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 fshelp/' > $@
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und-fshelp.lst: pre-fshelp.o
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echo 'fshelp' > $@
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$(NM) -u -P -p $< | cut -f1 -d' ' >> $@
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fshelp_mod-fs_fshelp.o: fs/fshelp.c
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$(CC) -Ifs -I$(srcdir)/fs $(CPPFLAGS) $(CFLAGS) $(fshelp_mod_CFLAGS) -c -o $@ $<
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fshelp_mod-fs_fshelp.d: fs/fshelp.c
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set -e; $(CC) -Ifs -I$(srcdir)/fs $(CPPFLAGS) $(CFLAGS) $(fshelp_mod_CFLAGS) -M $< | sed 's,fshelp\.o[ :]*,fshelp_mod-fs_fshelp.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
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-include fshelp_mod-fs_fshelp.d
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fshelp_mod_CFLAGS = $(COMMON_CFLAGS)
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# For fat.mod.
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fat_mod_SOURCES = fs/fat.c
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CLEANFILES += fat.mod mod-fat.o mod-fat.c pre-fat.o fat_mod-fs_fat.o def-fat.lst und-fat.lst
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@ -61,10 +61,10 @@ grub_mkimage_LDFLAGS = -llzo
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grub_setup_SOURCES = util/i386/pc/grub-setup.c util/i386/pc/biosdisk.c \
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util/misc.c util/i386/pc/getroot.c kern/device.c kern/disk.c \
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kern/err.c kern/misc.c disk/i386/pc/partition.c fs/fat.c fs/ext2.c \
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fs/ufs.c fs/minix.c fs/hfs.c fs/jfs.c kern/file.c kern/fs.c kern/env.c
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fs/ufs.c fs/minix.c fs/hfs.c fs/jfs.c kern/file.c kern/fs.c kern/env.c fs/fshelp.c
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# For grub
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grub_emu_SOURCES = kern/main.c kern/device.c \
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grub_emu_SOURCES = kern/main.c kern/device.c fs/fshelp.c \
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kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c \
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kern/misc.c kern/loader.c kern/rescue.c kern/term.c \
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disk/i386/pc/partition.c kern/env.c commands/ls.c \
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@ -80,12 +80,16 @@ genmoddep_SOURCES = util/genmoddep.c
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# Modules.
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pkgdata_MODULES = _chain.mod _linux.mod fat.mod ufs.mod ext2.mod minix.mod \
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hfs.mod jfs.mod normal.mod hello.mod vga.mod font.mod _multiboot.mod ls.mod \
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boot.mod cmp.mod cat.mod terminal.mod
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boot.mod cmp.mod cat.mod terminal.mod fshelp.mod
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# For _chain.mod.
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_chain_mod_SOURCES = loader/i386/pc/chainloader.c
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_chain_mod_CFLAGS = $(COMMON_CFLAGS)
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# For fshelp.mod.
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fshelp_mod_SOURCES = fs/fshelp.c
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fshelp_mod_CFLAGS = $(COMMON_CFLAGS)
|
||||
|
||||
# For fat.mod.
|
||||
fat_mod_SOURCES = fs/fat.c
|
||||
fat_mod_CFLAGS = $(COMMON_CFLAGS)
|
||||
|
|
|
|||
|
|
@ -24,17 +24,17 @@ noinst_UTILITIES = genmoddep
|
|||
grub_emu_SOURCES = kern/main.c kern/device.c \
|
||||
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c \
|
||||
kern/misc.c kern/loader.c kern/rescue.c kern/term.c \
|
||||
disk/powerpc/ieee1275/partition.c \
|
||||
disk/powerpc/ieee1275/partition.c fs/fshelp.c \
|
||||
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c fs/ufs.c fs/minix.c fs/hfs.c \
|
||||
fs/jfs.c normal/cmdline.c normal/command.c normal/main.c normal/menu.c \
|
||||
normal/arg.c \
|
||||
util/console.c util/grub-emu.c util/misc.c util/i386/pc/getroot.c \
|
||||
kern/env.c commands/ls.c \
|
||||
commands/terminal.c commands/boot.c commands/cmp.c commands/cat.c
|
||||
CLEANFILES += grub-emu grub_emu-kern_main.o grub_emu-kern_device.o grub_emu-kern_disk.o grub_emu-kern_dl.o grub_emu-kern_file.o grub_emu-kern_fs.o grub_emu-kern_err.o grub_emu-kern_misc.o grub_emu-kern_loader.o grub_emu-kern_rescue.o grub_emu-kern_term.o grub_emu-disk_powerpc_ieee1275_partition.o grub_emu-util_i386_pc_biosdisk.o grub_emu-fs_fat.o grub_emu-fs_ext2.o grub_emu-fs_ufs.o grub_emu-fs_minix.o grub_emu-fs_hfs.o grub_emu-fs_jfs.o grub_emu-normal_cmdline.o grub_emu-normal_command.o grub_emu-normal_main.o grub_emu-normal_menu.o grub_emu-normal_arg.o grub_emu-util_console.o grub_emu-util_grub_emu.o grub_emu-util_misc.o grub_emu-util_i386_pc_getroot.o grub_emu-kern_env.o grub_emu-commands_ls.o grub_emu-commands_terminal.o grub_emu-commands_boot.o grub_emu-commands_cmp.o grub_emu-commands_cat.o
|
||||
MOSTLYCLEANFILES += grub_emu-kern_main.d grub_emu-kern_device.d grub_emu-kern_disk.d grub_emu-kern_dl.d grub_emu-kern_file.d grub_emu-kern_fs.d grub_emu-kern_err.d grub_emu-kern_misc.d grub_emu-kern_loader.d grub_emu-kern_rescue.d grub_emu-kern_term.d grub_emu-disk_powerpc_ieee1275_partition.d grub_emu-util_i386_pc_biosdisk.d grub_emu-fs_fat.d grub_emu-fs_ext2.d grub_emu-fs_ufs.d grub_emu-fs_minix.d grub_emu-fs_hfs.d grub_emu-fs_jfs.d grub_emu-normal_cmdline.d grub_emu-normal_command.d grub_emu-normal_main.d grub_emu-normal_menu.d grub_emu-normal_arg.d grub_emu-util_console.d grub_emu-util_grub_emu.d grub_emu-util_misc.d grub_emu-util_i386_pc_getroot.d grub_emu-kern_env.d grub_emu-commands_ls.d grub_emu-commands_terminal.d grub_emu-commands_boot.d grub_emu-commands_cmp.d grub_emu-commands_cat.d
|
||||
CLEANFILES += grub-emu grub_emu-kern_main.o grub_emu-kern_device.o grub_emu-kern_disk.o grub_emu-kern_dl.o grub_emu-kern_file.o grub_emu-kern_fs.o grub_emu-kern_err.o grub_emu-kern_misc.o grub_emu-kern_loader.o grub_emu-kern_rescue.o grub_emu-kern_term.o grub_emu-disk_powerpc_ieee1275_partition.o grub_emu-fs_fshelp.o grub_emu-util_i386_pc_biosdisk.o grub_emu-fs_fat.o grub_emu-fs_ext2.o grub_emu-fs_ufs.o grub_emu-fs_minix.o grub_emu-fs_hfs.o grub_emu-fs_jfs.o grub_emu-normal_cmdline.o grub_emu-normal_command.o grub_emu-normal_main.o grub_emu-normal_menu.o grub_emu-normal_arg.o grub_emu-util_console.o grub_emu-util_grub_emu.o grub_emu-util_misc.o grub_emu-util_i386_pc_getroot.o grub_emu-kern_env.o grub_emu-commands_ls.o grub_emu-commands_terminal.o grub_emu-commands_boot.o grub_emu-commands_cmp.o grub_emu-commands_cat.o
|
||||
MOSTLYCLEANFILES += grub_emu-kern_main.d grub_emu-kern_device.d grub_emu-kern_disk.d grub_emu-kern_dl.d grub_emu-kern_file.d grub_emu-kern_fs.d grub_emu-kern_err.d grub_emu-kern_misc.d grub_emu-kern_loader.d grub_emu-kern_rescue.d grub_emu-kern_term.d grub_emu-disk_powerpc_ieee1275_partition.d grub_emu-fs_fshelp.d grub_emu-util_i386_pc_biosdisk.d grub_emu-fs_fat.d grub_emu-fs_ext2.d grub_emu-fs_ufs.d grub_emu-fs_minix.d grub_emu-fs_hfs.d grub_emu-fs_jfs.d grub_emu-normal_cmdline.d grub_emu-normal_command.d grub_emu-normal_main.d grub_emu-normal_menu.d grub_emu-normal_arg.d grub_emu-util_console.d grub_emu-util_grub_emu.d grub_emu-util_misc.d grub_emu-util_i386_pc_getroot.d grub_emu-kern_env.d grub_emu-commands_ls.d grub_emu-commands_terminal.d grub_emu-commands_boot.d grub_emu-commands_cmp.d grub_emu-commands_cat.d
|
||||
|
||||
grub-emu: grub_emu-kern_main.o grub_emu-kern_device.o grub_emu-kern_disk.o grub_emu-kern_dl.o grub_emu-kern_file.o grub_emu-kern_fs.o grub_emu-kern_err.o grub_emu-kern_misc.o grub_emu-kern_loader.o grub_emu-kern_rescue.o grub_emu-kern_term.o grub_emu-disk_powerpc_ieee1275_partition.o grub_emu-util_i386_pc_biosdisk.o grub_emu-fs_fat.o grub_emu-fs_ext2.o grub_emu-fs_ufs.o grub_emu-fs_minix.o grub_emu-fs_hfs.o grub_emu-fs_jfs.o grub_emu-normal_cmdline.o grub_emu-normal_command.o grub_emu-normal_main.o grub_emu-normal_menu.o grub_emu-normal_arg.o grub_emu-util_console.o grub_emu-util_grub_emu.o grub_emu-util_misc.o grub_emu-util_i386_pc_getroot.o grub_emu-kern_env.o grub_emu-commands_ls.o grub_emu-commands_terminal.o grub_emu-commands_boot.o grub_emu-commands_cmp.o grub_emu-commands_cat.o
|
||||
grub-emu: grub_emu-kern_main.o grub_emu-kern_device.o grub_emu-kern_disk.o grub_emu-kern_dl.o grub_emu-kern_file.o grub_emu-kern_fs.o grub_emu-kern_err.o grub_emu-kern_misc.o grub_emu-kern_loader.o grub_emu-kern_rescue.o grub_emu-kern_term.o grub_emu-disk_powerpc_ieee1275_partition.o grub_emu-fs_fshelp.o grub_emu-util_i386_pc_biosdisk.o grub_emu-fs_fat.o grub_emu-fs_ext2.o grub_emu-fs_ufs.o grub_emu-fs_minix.o grub_emu-fs_hfs.o grub_emu-fs_jfs.o grub_emu-normal_cmdline.o grub_emu-normal_command.o grub_emu-normal_main.o grub_emu-normal_menu.o grub_emu-normal_arg.o grub_emu-util_console.o grub_emu-util_grub_emu.o grub_emu-util_misc.o grub_emu-util_i386_pc_getroot.o grub_emu-kern_env.o grub_emu-commands_ls.o grub_emu-commands_terminal.o grub_emu-commands_boot.o grub_emu-commands_cmp.o grub_emu-commands_cat.o
|
||||
$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(grub_emu_LDFLAGS)
|
||||
|
||||
grub_emu-kern_main.o: kern/main.c
|
||||
|
|
@ -133,6 +133,14 @@ grub_emu-disk_powerpc_ieee1275_partition.d: disk/powerpc/ieee1275/partition.c
|
|||
|
||||
-include grub_emu-disk_powerpc_ieee1275_partition.d
|
||||
|
||||
grub_emu-fs_fshelp.o: fs/fshelp.c
|
||||
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
|
||||
|
||||
grub_emu-fs_fshelp.d: fs/fshelp.c
|
||||
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -M $< | sed 's,fshelp\.o[ :]*,grub_emu-fs_fshelp.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
|
||||
|
||||
-include grub_emu-fs_fshelp.d
|
||||
|
||||
grub_emu-util_i386_pc_biosdisk.o: util/i386/pc/biosdisk.c
|
||||
$(BUILD_CC) -Iutil/i386/pc -I$(srcdir)/util/i386/pc $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
|
||||
|
||||
|
|
@ -313,7 +321,7 @@ grub_emu_LDFLAGS = -lncurses
|
|||
|
||||
grubof_SOURCES = boot/powerpc/ieee1275/cmain.c boot/powerpc/ieee1275/ieee1275.c \
|
||||
boot/powerpc/ieee1275/crt0.S kern/main.c kern/device.c \
|
||||
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c \
|
||||
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c fs/fshelp.c \
|
||||
kern/misc.c kern/mm.c kern/loader.c kern/rescue.c kern/term.c \
|
||||
kern/powerpc/ieee1275/init.c term/powerpc/ieee1275/ofconsole.c \
|
||||
kern/powerpc/ieee1275/openfw.c fs/ext2.c fs/ufs.c fs/minix.c fs/hfs.c \
|
||||
|
|
@ -321,10 +329,10 @@ grubof_SOURCES = boot/powerpc/ieee1275/cmain.c boot/powerpc/ieee1275/ieee1275.c
|
|||
disk/powerpc/ieee1275/ofdisk.c disk/powerpc/ieee1275/partition.c \
|
||||
kern/env.c normal/arg.c loader/powerpc/ieee1275/linux.c \
|
||||
loader/powerpc/ieee1275/linux_normal.c commands/boot.c
|
||||
CLEANFILES += grubof grubof-boot_powerpc_ieee1275_cmain.o grubof-boot_powerpc_ieee1275_ieee1275.o grubof-boot_powerpc_ieee1275_crt0.o grubof-kern_main.o grubof-kern_device.o grubof-kern_disk.o grubof-kern_dl.o grubof-kern_file.o grubof-kern_fs.o grubof-kern_err.o grubof-kern_misc.o grubof-kern_mm.o grubof-kern_loader.o grubof-kern_rescue.o grubof-kern_term.o grubof-kern_powerpc_ieee1275_init.o grubof-term_powerpc_ieee1275_ofconsole.o grubof-kern_powerpc_ieee1275_openfw.o grubof-fs_ext2.o grubof-fs_ufs.o grubof-fs_minix.o grubof-fs_hfs.o grubof-fs_jfs.o grubof-normal_cmdline.o grubof-normal_command.o grubof-normal_main.o grubof-normal_menu.o grubof-disk_powerpc_ieee1275_ofdisk.o grubof-disk_powerpc_ieee1275_partition.o grubof-kern_env.o grubof-normal_arg.o grubof-loader_powerpc_ieee1275_linux.o grubof-loader_powerpc_ieee1275_linux_normal.o grubof-commands_boot.o
|
||||
MOSTLYCLEANFILES += grubof-boot_powerpc_ieee1275_cmain.d grubof-boot_powerpc_ieee1275_ieee1275.d grubof-boot_powerpc_ieee1275_crt0.d grubof-kern_main.d grubof-kern_device.d grubof-kern_disk.d grubof-kern_dl.d grubof-kern_file.d grubof-kern_fs.d grubof-kern_err.d grubof-kern_misc.d grubof-kern_mm.d grubof-kern_loader.d grubof-kern_rescue.d grubof-kern_term.d grubof-kern_powerpc_ieee1275_init.d grubof-term_powerpc_ieee1275_ofconsole.d grubof-kern_powerpc_ieee1275_openfw.d grubof-fs_ext2.d grubof-fs_ufs.d grubof-fs_minix.d grubof-fs_hfs.d grubof-fs_jfs.d grubof-normal_cmdline.d grubof-normal_command.d grubof-normal_main.d grubof-normal_menu.d grubof-disk_powerpc_ieee1275_ofdisk.d grubof-disk_powerpc_ieee1275_partition.d grubof-kern_env.d grubof-normal_arg.d grubof-loader_powerpc_ieee1275_linux.d grubof-loader_powerpc_ieee1275_linux_normal.d grubof-commands_boot.d
|
||||
CLEANFILES += grubof grubof-boot_powerpc_ieee1275_cmain.o grubof-boot_powerpc_ieee1275_ieee1275.o grubof-boot_powerpc_ieee1275_crt0.o grubof-kern_main.o grubof-kern_device.o grubof-kern_disk.o grubof-kern_dl.o grubof-kern_file.o grubof-kern_fs.o grubof-kern_err.o grubof-fs_fshelp.o grubof-kern_misc.o grubof-kern_mm.o grubof-kern_loader.o grubof-kern_rescue.o grubof-kern_term.o grubof-kern_powerpc_ieee1275_init.o grubof-term_powerpc_ieee1275_ofconsole.o grubof-kern_powerpc_ieee1275_openfw.o grubof-fs_ext2.o grubof-fs_ufs.o grubof-fs_minix.o grubof-fs_hfs.o grubof-fs_jfs.o grubof-normal_cmdline.o grubof-normal_command.o grubof-normal_main.o grubof-normal_menu.o grubof-disk_powerpc_ieee1275_ofdisk.o grubof-disk_powerpc_ieee1275_partition.o grubof-kern_env.o grubof-normal_arg.o grubof-loader_powerpc_ieee1275_linux.o grubof-loader_powerpc_ieee1275_linux_normal.o grubof-commands_boot.o
|
||||
MOSTLYCLEANFILES += grubof-boot_powerpc_ieee1275_cmain.d grubof-boot_powerpc_ieee1275_ieee1275.d grubof-boot_powerpc_ieee1275_crt0.d grubof-kern_main.d grubof-kern_device.d grubof-kern_disk.d grubof-kern_dl.d grubof-kern_file.d grubof-kern_fs.d grubof-kern_err.d grubof-fs_fshelp.d grubof-kern_misc.d grubof-kern_mm.d grubof-kern_loader.d grubof-kern_rescue.d grubof-kern_term.d grubof-kern_powerpc_ieee1275_init.d grubof-term_powerpc_ieee1275_ofconsole.d grubof-kern_powerpc_ieee1275_openfw.d grubof-fs_ext2.d grubof-fs_ufs.d grubof-fs_minix.d grubof-fs_hfs.d grubof-fs_jfs.d grubof-normal_cmdline.d grubof-normal_command.d grubof-normal_main.d grubof-normal_menu.d grubof-disk_powerpc_ieee1275_ofdisk.d grubof-disk_powerpc_ieee1275_partition.d grubof-kern_env.d grubof-normal_arg.d grubof-loader_powerpc_ieee1275_linux.d grubof-loader_powerpc_ieee1275_linux_normal.d grubof-commands_boot.d
|
||||
|
||||
grubof: grubof-boot_powerpc_ieee1275_cmain.o grubof-boot_powerpc_ieee1275_ieee1275.o grubof-boot_powerpc_ieee1275_crt0.o grubof-kern_main.o grubof-kern_device.o grubof-kern_disk.o grubof-kern_dl.o grubof-kern_file.o grubof-kern_fs.o grubof-kern_err.o grubof-kern_misc.o grubof-kern_mm.o grubof-kern_loader.o grubof-kern_rescue.o grubof-kern_term.o grubof-kern_powerpc_ieee1275_init.o grubof-term_powerpc_ieee1275_ofconsole.o grubof-kern_powerpc_ieee1275_openfw.o grubof-fs_ext2.o grubof-fs_ufs.o grubof-fs_minix.o grubof-fs_hfs.o grubof-fs_jfs.o grubof-normal_cmdline.o grubof-normal_command.o grubof-normal_main.o grubof-normal_menu.o grubof-disk_powerpc_ieee1275_ofdisk.o grubof-disk_powerpc_ieee1275_partition.o grubof-kern_env.o grubof-normal_arg.o grubof-loader_powerpc_ieee1275_linux.o grubof-loader_powerpc_ieee1275_linux_normal.o grubof-commands_boot.o
|
||||
grubof: grubof-boot_powerpc_ieee1275_cmain.o grubof-boot_powerpc_ieee1275_ieee1275.o grubof-boot_powerpc_ieee1275_crt0.o grubof-kern_main.o grubof-kern_device.o grubof-kern_disk.o grubof-kern_dl.o grubof-kern_file.o grubof-kern_fs.o grubof-kern_err.o grubof-fs_fshelp.o grubof-kern_misc.o grubof-kern_mm.o grubof-kern_loader.o grubof-kern_rescue.o grubof-kern_term.o grubof-kern_powerpc_ieee1275_init.o grubof-term_powerpc_ieee1275_ofconsole.o grubof-kern_powerpc_ieee1275_openfw.o grubof-fs_ext2.o grubof-fs_ufs.o grubof-fs_minix.o grubof-fs_hfs.o grubof-fs_jfs.o grubof-normal_cmdline.o grubof-normal_command.o grubof-normal_main.o grubof-normal_menu.o grubof-disk_powerpc_ieee1275_ofdisk.o grubof-disk_powerpc_ieee1275_partition.o grubof-kern_env.o grubof-normal_arg.o grubof-loader_powerpc_ieee1275_linux.o grubof-loader_powerpc_ieee1275_linux_normal.o grubof-commands_boot.o
|
||||
$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(grubof_LDFLAGS)
|
||||
|
||||
grubof-boot_powerpc_ieee1275_cmain.o: boot/powerpc/ieee1275/cmain.c
|
||||
|
|
@ -407,6 +415,14 @@ grubof-kern_err.d: kern/err.c
|
|||
|
||||
-include grubof-kern_err.d
|
||||
|
||||
grubof-fs_fshelp.o: fs/fshelp.c
|
||||
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grubof_CFLAGS) -c -o $@ $<
|
||||
|
||||
grubof-fs_fshelp.d: fs/fshelp.c
|
||||
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grubof_CFLAGS) -M $< | sed 's,fshelp\.o[ :]*,grubof-fs_fshelp.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
|
||||
|
||||
-include grubof-fs_fshelp.d
|
||||
|
||||
grubof-kern_misc.o: kern/misc.c
|
||||
$(BUILD_CC) -Ikern -I$(srcdir)/kern $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grubof_CFLAGS) -c -o $@ $<
|
||||
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ noinst_UTILITIES = genmoddep
|
|||
grub_emu_SOURCES = kern/main.c kern/device.c \
|
||||
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c \
|
||||
kern/misc.c kern/loader.c kern/rescue.c kern/term.c \
|
||||
disk/powerpc/ieee1275/partition.c \
|
||||
disk/powerpc/ieee1275/partition.c fs/fshelp.c \
|
||||
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c fs/ufs.c fs/minix.c fs/hfs.c \
|
||||
fs/jfs.c normal/cmdline.c normal/command.c normal/main.c normal/menu.c \
|
||||
normal/arg.c \
|
||||
|
|
@ -35,7 +35,7 @@ grub_emu_LDFLAGS = -lncurses
|
|||
|
||||
grubof_SOURCES = boot/powerpc/ieee1275/cmain.c boot/powerpc/ieee1275/ieee1275.c \
|
||||
boot/powerpc/ieee1275/crt0.S kern/main.c kern/device.c \
|
||||
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c \
|
||||
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c fs/fshelp.c \
|
||||
kern/misc.c kern/mm.c kern/loader.c kern/rescue.c kern/term.c \
|
||||
kern/powerpc/ieee1275/init.c term/powerpc/ieee1275/ofconsole.c \
|
||||
kern/powerpc/ieee1275/openfw.c fs/ext2.c fs/ufs.c fs/minix.c fs/hfs.c \
|
||||
|
|
|
|||
585
fs/ext2.c
585
fs/ext2.c
|
|
@ -29,11 +29,13 @@
|
|||
|
||||
/* 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
|
||||
|
||||
|
|
@ -44,6 +46,7 @@
|
|||
#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) \
|
||||
|
|
@ -57,7 +60,7 @@
|
|||
#define EXT2_BLOCK_SIZE(data) (1 << LOG2_BLOCK_SIZE(data))
|
||||
|
||||
/* The ext2 superblock. */
|
||||
struct grub_ext_sblock
|
||||
struct grub_ext2_sblock
|
||||
{
|
||||
grub_uint32_t total_inodes;
|
||||
grub_uint32_t total_blocks;
|
||||
|
|
@ -97,7 +100,7 @@ struct grub_ext_sblock
|
|||
};
|
||||
|
||||
/* The ext2 blockgroup. */
|
||||
struct ext2_block_group
|
||||
struct grub_ext2_block_group
|
||||
{
|
||||
grub_uint32_t block_id;
|
||||
grub_uint32_t inode_id;
|
||||
|
|
@ -150,12 +153,21 @@ struct ext2_dirent
|
|||
grub_uint8_t filetype;
|
||||
};
|
||||
|
||||
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_ext_sblock sblock;
|
||||
struct grub_ext2_sblock sblock;
|
||||
grub_disk_t disk;
|
||||
struct grub_ext2_inode inode;
|
||||
struct grub_ext2_inode *inode;
|
||||
struct grub_fshelp_node diropen;
|
||||
};
|
||||
|
||||
#ifndef GRUB_UTIL
|
||||
|
|
@ -166,60 +178,59 @@ static grub_dl_t my_mod;
|
|||
the mounted filesystem DATA. */
|
||||
inline static grub_err_t
|
||||
grub_ext2_blockgroup (struct grub_ext2_data *data, int group,
|
||||
struct ext2_block_group *blkgrp)
|
||||
struct grub_ext2_block_group *blkgrp)
|
||||
{
|
||||
return grub_disk_read (data->disk,
|
||||
return grub_disk_read (data->disk,
|
||||
((grub_le_to_cpu32 (data->sblock.first_data_block) + 1)
|
||||
<< LOG2_EXT2_BLOCK_SIZE (data)),
|
||||
group * sizeof (struct ext2_block_group),
|
||||
sizeof (struct ext2_block_group), (char *) blkgrp);
|
||||
group * sizeof (struct grub_ext2_block_group),
|
||||
sizeof (struct grub_ext2_block_group), (char *) blkgrp);
|
||||
}
|
||||
|
||||
/* Return in BLOCK the on disk block number of block FILEBLOCK in the
|
||||
opened file descibed by DATA. If this block is not stored on disk
|
||||
in case of a sparse file return 0. */
|
||||
static grub_err_t
|
||||
grub_ext2_get_file_block (struct grub_ext2_data *data,
|
||||
int fileblock, int *block)
|
||||
{
|
||||
int blknr;
|
||||
struct grub_ext2_inode *inode = &data->inode;
|
||||
|
||||
static int
|
||||
grub_ext2_read_block (grub_fshelp_node_t node, int fileblock)
|
||||
{
|
||||
struct grub_ext2_data *data = node->data;
|
||||
struct grub_ext2_inode *inode = &node->inode;
|
||||
int blknr;
|
||||
int blksz = EXT2_BLOCK_SIZE (data);
|
||||
int log2_blksz = LOG2_EXT2_BLOCK_SIZE (data);
|
||||
|
||||
/* Direct blocks. */
|
||||
if (fileblock < INDIRECT_BLOCKS)
|
||||
blknr = grub_le_to_cpu32 (inode->blocks.dir_blocks[fileblock]);
|
||||
/* Indirect. */
|
||||
else if (fileblock < INDIRECT_BLOCKS + EXT2_BLOCK_SIZE (data) / 4)
|
||||
else if (fileblock < INDIRECT_BLOCKS + blksz / 4)
|
||||
{
|
||||
grub_uint32_t indir[EXT2_BLOCK_SIZE (data) / 4];
|
||||
grub_uint32_t indir[blksz / 4];
|
||||
|
||||
if (grub_disk_read (data->disk,
|
||||
grub_le_to_cpu32 (inode->blocks.indir_block)
|
||||
<< LOG2_EXT2_BLOCK_SIZE (data),
|
||||
0, EXT2_BLOCK_SIZE (data), (char *) indir))
|
||||
<< log2_blksz,
|
||||
0, blksz, (char *) indir))
|
||||
return grub_errno;
|
||||
|
||||
blknr = grub_le_to_cpu32 (indir[fileblock - INDIRECT_BLOCKS]);
|
||||
}
|
||||
/* Double indirect. */
|
||||
else if (fileblock < INDIRECT_BLOCKS + EXT2_BLOCK_SIZE (data) / 4
|
||||
* (EXT2_BLOCK_SIZE (data) / 4 + 1))
|
||||
else if (fileblock < INDIRECT_BLOCKS + blksz / 4 * (blksz / 4 + 1))
|
||||
{
|
||||
unsigned int perblock = EXT2_BLOCK_SIZE (data) / 4;
|
||||
unsigned int perblock = blksz / 4;
|
||||
unsigned int rblock = fileblock - (INDIRECT_BLOCKS
|
||||
+ EXT2_BLOCK_SIZE (data) / 4);
|
||||
grub_uint32_t indir[EXT2_BLOCK_SIZE (data) / 4];
|
||||
+ blksz / 4);
|
||||
grub_uint32_t indir[blksz / 4];
|
||||
|
||||
if (grub_disk_read (data->disk,
|
||||
grub_le_to_cpu32 (inode->blocks.double_indir_block)
|
||||
<< LOG2_EXT2_BLOCK_SIZE (data),
|
||||
0, EXT2_BLOCK_SIZE (data), (char *) indir))
|
||||
<< log2_blksz,
|
||||
0, blksz, (char *) indir))
|
||||
return grub_errno;
|
||||
|
||||
if (grub_disk_read (data->disk,
|
||||
grub_le_to_cpu32 (indir[rblock / perblock])
|
||||
<< LOG2_EXT2_BLOCK_SIZE (data),
|
||||
0, EXT2_BLOCK_SIZE (data), (char *) indir))
|
||||
<< log2_blksz,
|
||||
0, blksz, (char *) indir))
|
||||
return grub_errno;
|
||||
|
||||
|
||||
|
|
@ -233,78 +244,23 @@ grub_ext2_get_file_block (struct grub_ext2_data *data,
|
|||
return grub_errno;
|
||||
}
|
||||
|
||||
*block = blknr;
|
||||
|
||||
return 0;
|
||||
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 (struct grub_ext2_data *data,
|
||||
grub_ext2_read_file (grub_fshelp_node_t node,
|
||||
void (*read_hook) (unsigned long sector,
|
||||
unsigned offset, unsigned length),
|
||||
int pos, unsigned int len, char *buf)
|
||||
{
|
||||
int i;
|
||||
int blockcnt;
|
||||
|
||||
/* Adjust len so it we can't read past the end of the file. */
|
||||
if (len > grub_le_to_cpu32 (data->inode.size))
|
||||
len = grub_le_to_cpu32 (data->inode.size);
|
||||
|
||||
blockcnt = ((len + pos)
|
||||
+ EXT2_BLOCK_SIZE (data) - 1) / EXT2_BLOCK_SIZE (data);
|
||||
|
||||
for (i = pos / EXT2_BLOCK_SIZE (data); i < blockcnt; i++)
|
||||
{
|
||||
int blknr;
|
||||
int blockoff = pos % EXT2_BLOCK_SIZE (data);
|
||||
int blockend = EXT2_BLOCK_SIZE (data);
|
||||
|
||||
int skipfirst = 0;
|
||||
|
||||
grub_ext2_get_file_block (data, i, &blknr);
|
||||
if (grub_errno)
|
||||
return -1;
|
||||
|
||||
blknr = blknr << LOG2_EXT2_BLOCK_SIZE (data);
|
||||
|
||||
/* Last block. */
|
||||
if (i == blockcnt - 1)
|
||||
{
|
||||
blockend = (len + pos) % EXT2_BLOCK_SIZE (data);
|
||||
|
||||
/* The last portion is exactly EXT2_BLOCK_SIZE (data). */
|
||||
if (!blockend)
|
||||
blockend = EXT2_BLOCK_SIZE (data);
|
||||
}
|
||||
|
||||
/* First block. */
|
||||
if (i == pos / EXT2_BLOCK_SIZE (data))
|
||||
{
|
||||
skipfirst = blockoff;
|
||||
blockend -= skipfirst;
|
||||
}
|
||||
|
||||
/* If the block number is 0 this block is not stored on disk but
|
||||
is zero filled instead. */
|
||||
if (blknr)
|
||||
{
|
||||
data->disk->read_hook = read_hook;
|
||||
grub_disk_read (data->disk, blknr, skipfirst,
|
||||
blockend, buf);
|
||||
data->disk->read_hook = 0;
|
||||
if (grub_errno)
|
||||
return -1;
|
||||
}
|
||||
else
|
||||
grub_memset (buf, EXT2_BLOCK_SIZE (data) - skipfirst, 0);
|
||||
|
||||
buf += EXT2_BLOCK_SIZE (data) - skipfirst;
|
||||
}
|
||||
|
||||
return len;
|
||||
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));
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -313,8 +269,8 @@ static grub_err_t
|
|||
grub_ext2_read_inode (struct grub_ext2_data *data,
|
||||
int ino, struct grub_ext2_inode *inode)
|
||||
{
|
||||
struct ext2_block_group blkgrp;
|
||||
struct grub_ext_sblock *sblock = &data->sblock;
|
||||
struct grub_ext2_block_group blkgrp;
|
||||
struct grub_ext2_sblock *sblock = &data->sblock;
|
||||
int inodes_per_block;
|
||||
|
||||
unsigned int blkno;
|
||||
|
|
@ -355,7 +311,7 @@ grub_ext2_mount (grub_disk_t disk)
|
|||
return 0;
|
||||
|
||||
/* Read the superblock. */
|
||||
grub_disk_read (disk, 1 * 2, 0, sizeof (struct grub_ext_sblock),
|
||||
grub_disk_read (disk, 1 * 2, 0, sizeof (struct grub_ext2_sblock),
|
||||
(char *) &data->sblock);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
|
@ -364,7 +320,17 @@ grub_ext2_mount (grub_disk_t disk)
|
|||
if (grub_le_to_cpu16 (data->sblock.magic) != EXT2_MAGIC)
|
||||
goto fail;
|
||||
|
||||
data->diropen.data = data;
|
||||
data->diropen.ino = 2;
|
||||
data->diropen.inode_read = 1;
|
||||
|
||||
data->inode = &data->diropen.inode;
|
||||
data->disk = disk;
|
||||
|
||||
grub_ext2_read_inode (data, 2, data->inode);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
||||
return data;
|
||||
|
||||
fail:
|
||||
|
|
@ -373,198 +339,137 @@ grub_ext2_mount (grub_disk_t disk)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* Find the file with the pathname PATH on the filesystem described by
|
||||
DATA. Return its inode number in INO. */
|
||||
static grub_err_t
|
||||
grub_ext2_find_file (struct grub_ext2_data *data, const char *path, int *ino)
|
||||
static char *
|
||||
grub_ext2_read_symlink (grub_fshelp_node_t node)
|
||||
{
|
||||
int blocksize = EXT2_BLOCK_SIZE (data)
|
||||
<< grub_le_to_cpu32 (data->sblock.log2_block_size);
|
||||
struct grub_ext2_inode *inode = &data->inode;
|
||||
int currinode = 2;
|
||||
int symlinkcnt = 0;
|
||||
|
||||
char fpath[EXT2_PATH_MAX];
|
||||
char *name = fpath;
|
||||
|
||||
grub_strncpy (fpath, path, EXT2_PATH_MAX);
|
||||
|
||||
if (!name || name[0] != '/')
|
||||
char *symlink;
|
||||
struct grub_fshelp_node *diro = node;
|
||||
|
||||
if (!diro->inode_read)
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_FILENAME, "bad filename");
|
||||
return grub_errno;
|
||||
}
|
||||
|
||||
/* Skip the first slash. */
|
||||
name++;
|
||||
if (!*name)
|
||||
{
|
||||
*ino = 2;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Remove trailing "/". */
|
||||
if (name[grub_strlen (name) - 1] =='/')
|
||||
name[grub_strlen (name) - 1] = '\0';
|
||||
|
||||
while (*name)
|
||||
{
|
||||
unsigned int fpos = 0;
|
||||
char *next;
|
||||
int namesize;
|
||||
|
||||
/* Extract the actual part from the pathname. */
|
||||
next = grub_strchr (name, '/');
|
||||
if (next)
|
||||
{
|
||||
next[0] = '\0';
|
||||
next++;
|
||||
}
|
||||
|
||||
namesize = grub_strlen (name);
|
||||
|
||||
/* Open the file. */
|
||||
grub_ext2_read_inode (data, currinode, inode);
|
||||
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)
|
||||
goto fail;
|
||||
|
||||
/* Search the file. */
|
||||
while (fpos < grub_le_to_cpu32 (inode->size))
|
||||
{
|
||||
struct ext2_dirent dirent;
|
||||
|
||||
/* Read the directory entry. */
|
||||
grub_ext2_read_file (data, 0, fpos, sizeof (struct ext2_dirent),
|
||||
(char *) &dirent);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
||||
if (dirent.namelen != 0)
|
||||
{
|
||||
char filename[dirent.namelen + 1];
|
||||
|
||||
/* Read the filename part of this directory entry. */
|
||||
grub_ext2_read_file (data, 0, fpos
|
||||
+ sizeof (struct ext2_dirent),
|
||||
dirent.namelen, filename);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
||||
filename[dirent.namelen] = '\0';
|
||||
|
||||
/* Check if the current directory entry described the
|
||||
file we are looking for. */
|
||||
if (dirent.namelen == namesize
|
||||
&& !grub_strncmp (name, filename, namesize))
|
||||
{
|
||||
/* Stat the inode. */
|
||||
grub_ext2_read_inode (data,
|
||||
grub_le_to_cpu32 (dirent.inode),
|
||||
inode);
|
||||
|
||||
/* If this is a symlink, follow it. */
|
||||
if ((grub_le_to_cpu16 (data->inode.mode)
|
||||
& FILETYPE_INO_MASK) == FILETYPE_INO_SYMLINK)
|
||||
{
|
||||
/* XXX: Use malloc instead? */
|
||||
char symlink[blocksize];
|
||||
|
||||
if (++symlinkcnt == EXT2_MAX_SYMLINKCNT)
|
||||
{
|
||||
grub_error (GRUB_ERR_SYMLINK_LOOP,
|
||||
"too deep nesting of symlinks");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* 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 (inode->size) <= 60)
|
||||
grub_strncpy (symlink,
|
||||
inode->symlink,
|
||||
grub_le_to_cpu32 (inode->size));
|
||||
else
|
||||
{
|
||||
grub_ext2_read_file (data, 0, 0,
|
||||
grub_le_to_cpu32 (inode->size),
|
||||
symlink);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
}
|
||||
|
||||
symlink[grub_le_to_cpu32 (inode->size)] = '\0';
|
||||
|
||||
/* Check if the symlink is absolute or relative. */
|
||||
if (symlink[0] == '/')
|
||||
{
|
||||
grub_strncpy (fpath, symlink + 1, EXT2_PATH_MAX);
|
||||
name = fpath;
|
||||
currinode = 2;
|
||||
}
|
||||
else
|
||||
{
|
||||
char *bak = 0;
|
||||
|
||||
if (next)
|
||||
{
|
||||
bak = grub_strdup (next);
|
||||
if (!bak)
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* Relative symlink, construct the new path. */
|
||||
grub_strcpy (fpath, symlink);
|
||||
name = fpath;
|
||||
|
||||
if (next)
|
||||
{
|
||||
grub_strcat (name, "/");
|
||||
grub_strcat (name, bak);
|
||||
grub_free (bak);
|
||||
}
|
||||
}
|
||||
|
||||
fpos = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
if (next)
|
||||
{
|
||||
currinode = grub_le_to_cpu32 (dirent.inode);
|
||||
name = next;
|
||||
|
||||
if ((grub_le_to_cpu16 (data->inode.mode)
|
||||
& FILETYPE_INO_MASK) != FILETYPE_INO_DIRECTORY)
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_FILE_TYPE,
|
||||
"not a directory");
|
||||
goto fail;
|
||||
}
|
||||
break;
|
||||
}
|
||||
else /* Found it! */
|
||||
{
|
||||
*ino = grub_le_to_cpu32 (dirent.inode);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Move to next directory entry. */
|
||||
fpos += grub_le_to_cpu16 (dirent.direntlen);
|
||||
}
|
||||
|
||||
/* The complete directory was read and no matching file was
|
||||
found. */
|
||||
if (fpos >= grub_le_to_cpu32 (inode->size))
|
||||
{
|
||||
grub_error (GRUB_ERR_FILE_NOT_FOUND, "file not found");
|
||||
goto fail;
|
||||
grub_free (symlink);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
symlink[grub_le_to_cpu32 (diro->inode.size)] = '\0';
|
||||
return symlink;
|
||||
}
|
||||
|
||||
fail:
|
||||
return grub_errno;
|
||||
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 (diro->inode.mode)
|
||||
& FILETYPE_INO_MASK) == FILETYPE_INO_DIRECTORY)
|
||||
type = GRUB_FSHELP_DIR;
|
||||
else if ((grub_le_to_cpu16 (diro->inode.mode)
|
||||
& FILETYPE_INO_MASK) == FILETYPE_INO_DIRECTORY)
|
||||
type = GRUB_FSHELP_SYMLINK;
|
||||
else if ((grub_le_to_cpu16 (diro->inode.mode)
|
||||
& FILETYPE_INO_MASK) == FILETYPE_INO_DIRECTORY)
|
||||
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. */
|
||||
|
|
@ -572,40 +477,42 @@ static grub_err_t
|
|||
grub_ext2_open (struct grub_file *file, const char *name)
|
||||
{
|
||||
struct grub_ext2_data *data;
|
||||
int ino;
|
||||
|
||||
struct grub_fshelp_node *fdiro = 0;
|
||||
|
||||
#ifndef GRUB_UTIL
|
||||
grub_dl_ref (my_mod);
|
||||
#endif
|
||||
|
||||
|
||||
data = grub_ext2_mount (file->device->disk);
|
||||
if (!data)
|
||||
goto fail;
|
||||
|
||||
grub_ext2_find_file (data, name, &ino);
|
||||
grub_fshelp_find_file (name, &data->diropen, &fdiro, grub_ext2_iterate_dir,
|
||||
grub_ext2_read_symlink, GRUB_FSHELP_REG);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
||||
grub_ext2_read_inode (data, ino, &data->inode);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
||||
if (!(grub_le_to_cpu16 (data->inode.mode) & 0100000))
|
||||
|
||||
if (!fdiro->inode_read)
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a regular file");
|
||||
goto fail;
|
||||
grub_ext2_read_inode (data, fdiro->ino, &fdiro->inode);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
}
|
||||
|
||||
file->size = grub_le_to_cpu32 (data->inode.size);
|
||||
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:
|
||||
|
||||
grub_free (data);
|
||||
|
||||
if (fdiro != &data->diropen)
|
||||
grub_free (fdiro);
|
||||
|
||||
#ifndef GRUB_UTIL
|
||||
grub_dl_unref (my_mod);
|
||||
#endif
|
||||
|
|
@ -632,7 +539,8 @@ grub_ext2_read (grub_file_t file, char *buf, grub_ssize_t len)
|
|||
struct grub_ext2_data *data =
|
||||
(struct grub_ext2_data *) file->data;
|
||||
|
||||
return grub_ext2_read_file (data, file->read_hook, file->offset, len, buf);
|
||||
return grub_ext2_read_file (&data->diropen, file->read_hook,
|
||||
file->offset, len, buf);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -641,10 +549,26 @@ grub_ext2_dir (grub_device_t device, const char *path,
|
|||
int (*hook) (const char *filename, int dir))
|
||||
{
|
||||
struct grub_ext2_data *data = 0;;
|
||||
|
||||
int ino;
|
||||
unsigned int fpos = 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)
|
||||
{
|
||||
grub_free (node);
|
||||
|
||||
if (filetype == GRUB_FSHELP_DIR)
|
||||
return hook (filename, 1);
|
||||
else
|
||||
return hook (filename, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifndef GRUB_UTIL
|
||||
grub_dl_ref (my_mod);
|
||||
#endif
|
||||
|
|
@ -652,61 +576,18 @@ grub_ext2_dir (grub_device_t device, const char *path,
|
|||
data = grub_ext2_mount (device->disk);
|
||||
if (!data)
|
||||
goto fail;
|
||||
|
||||
grub_ext2_find_file (data, (char *) path, &ino);
|
||||
|
||||
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_read_inode (data, ino, &data->inode);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
||||
if ((grub_le_to_cpu16 (data->inode.mode)
|
||||
& FILETYPE_INO_MASK) != FILETYPE_INO_DIRECTORY)
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a directory");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* Search the file. */
|
||||
while (fpos < grub_le_to_cpu32 (data->inode.size))
|
||||
{
|
||||
struct ext2_dirent dirent;
|
||||
|
||||
grub_ext2_read_file (data, 0, fpos, sizeof (struct ext2_dirent),
|
||||
(char *) &dirent);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
||||
if (dirent.namelen != 0)
|
||||
{
|
||||
char filename[dirent.namelen + 1];
|
||||
|
||||
grub_ext2_read_file (data, 0, fpos + sizeof (struct ext2_dirent),
|
||||
dirent.namelen, filename);
|
||||
if (grub_errno)
|
||||
goto fail;
|
||||
|
||||
filename[dirent.namelen] = '\0';
|
||||
|
||||
if (dirent.filetype != FILETYPE_UNKNOWN)
|
||||
hook (filename, dirent.filetype == FILETYPE_DIRECTORY);
|
||||
else
|
||||
{
|
||||
struct grub_ext2_inode inode;
|
||||
grub_ext2_read_inode (data, grub_le_to_cpu32 (dirent.inode), &inode);
|
||||
|
||||
hook (filename, (grub_le_to_cpu16 (inode.mode)
|
||||
& FILETYPE_INO_MASK) == FILETYPE_INO_DIRECTORY);
|
||||
}
|
||||
}
|
||||
|
||||
fpos += grub_le_to_cpu16 (dirent.direntlen);
|
||||
}
|
||||
|
||||
return grub_errno;
|
||||
|
||||
grub_ext2_iterate_dir (fdiro, iterate);
|
||||
|
||||
fail:
|
||||
|
||||
grub_free (data);
|
||||
if (fdiro != &data->diropen)
|
||||
grub_free (fdiro);
|
||||
|
||||
#ifndef GRUB_UTIL
|
||||
grub_dl_unref (my_mod);
|
||||
|
|
|
|||
|
|
@ -0,0 +1,292 @@
|
|||
/* fshelp.c -- Filesystem helper functions */
|
||||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2004 Free Software Foundation, Inc.
|
||||
*
|
||||
* GRUB is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GRUB; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include <grub/err.h>
|
||||
#include <grub/mm.h>
|
||||
#include <grub/misc.h>
|
||||
#include <grub/disk.h>
|
||||
#include <grub/fshelp.h>
|
||||
|
||||
|
||||
/* Lookup the node PATH. The node ROOTNODE describes the root of the
|
||||
directory tree. The node found is returned in FOUNDNODE, which is
|
||||
either a ROOTNODE or a new malloc'ed node. ITERATE_DIR is used to
|
||||
iterate over all directory entries in the current node.
|
||||
READ_SYMLINK is used to read the symlink if a node is a symlink.
|
||||
EXPECTTYPE is the type node that is expected by the called, an
|
||||
error is generated if the node is not of the expected type. Make
|
||||
sure you use the NESTED_FUNC_ATTR macro for HOOK, this is required
|
||||
because GCC has a nasty bug when using regparm=3. */
|
||||
grub_err_t
|
||||
grub_fshelp_find_file (const char *path, grub_fshelp_node_t rootnode,
|
||||
grub_fshelp_node_t *foundnode,
|
||||
int (*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)),
|
||||
char *(*read_symlink) (grub_fshelp_node_t node),
|
||||
enum grub_fshelp_filetype expecttype)
|
||||
{
|
||||
grub_err_t err;
|
||||
enum grub_fshelp_filetype foundtype = GRUB_FSHELP_DIR;
|
||||
int symlinknest = 0;
|
||||
|
||||
auto grub_err_t NESTED_FUNC_ATTR find_file (const char *currpath,
|
||||
grub_fshelp_node_t currroot,
|
||||
grub_fshelp_node_t *currfound);
|
||||
|
||||
grub_err_t NESTED_FUNC_ATTR find_file (const char *currpath,
|
||||
grub_fshelp_node_t currroot,
|
||||
grub_fshelp_node_t *currfound)
|
||||
{
|
||||
char fpath[grub_strlen (currpath) + 1];
|
||||
char *name = fpath;
|
||||
char *next;
|
||||
// unsigned int pos = 0;
|
||||
enum grub_fshelp_filetype type = GRUB_FSHELP_DIR;
|
||||
grub_fshelp_node_t currnode = currroot;
|
||||
grub_fshelp_node_t oldnode = currroot;
|
||||
|
||||
auto int NESTED_FUNC_ATTR iterate (const char *filename,
|
||||
enum grub_fshelp_filetype filetype,
|
||||
grub_fshelp_node_t node);
|
||||
|
||||
auto void free_node (grub_fshelp_node_t node);
|
||||
|
||||
void free_node (grub_fshelp_node_t node)
|
||||
{
|
||||
if (node != rootnode && node != currroot)
|
||||
grub_free (node);
|
||||
}
|
||||
|
||||
int NESTED_FUNC_ATTR iterate (const char *filename,
|
||||
enum grub_fshelp_filetype filetype,
|
||||
grub_fshelp_node_t node)
|
||||
{
|
||||
if (type == GRUB_FSHELP_UNKNOWN || grub_strcmp (name, filename))
|
||||
{
|
||||
grub_free (node);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* The node is found, stop iterating over the nodes. */
|
||||
type = filetype;
|
||||
oldnode = currnode == rootnode ? 0 : currnode;
|
||||
currnode = node;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
grub_strncpy (fpath, currpath, grub_strlen (currpath) + 1);
|
||||
|
||||
/* Remove all leading slashes. */
|
||||
while (*name == '/')
|
||||
name++;
|
||||
|
||||
if (!*name)
|
||||
{
|
||||
*currfound = currnode;
|
||||
return 0;
|
||||
}
|
||||
|
||||
for (;;)
|
||||
{
|
||||
int found;
|
||||
|
||||
/* Extract the actual part from the pathname. */
|
||||
next = grub_strchr (name, '/');
|
||||
if (next)
|
||||
{
|
||||
/* Remove all leading slashes. */
|
||||
while (*next == '/')
|
||||
*(next++) = '\0';
|
||||
}
|
||||
|
||||
/* At this point it is expected that the current node is a
|
||||
directory, check if this is true. */
|
||||
if (type != GRUB_FSHELP_DIR)
|
||||
{
|
||||
free_node (currnode);
|
||||
return grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a directory");
|
||||
}
|
||||
|
||||
/* Iterate over the directory. */
|
||||
found = iterate_dir (currnode, iterate);
|
||||
|
||||
if (!found)
|
||||
{
|
||||
free_node (oldnode);
|
||||
if (grub_errno)
|
||||
return grub_errno;
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
/* Read in the symlink and follow it. */
|
||||
if (type == GRUB_FSHELP_SYMLINK)
|
||||
{
|
||||
char *symlink;
|
||||
|
||||
/* Test if the symlink does not loop. */
|
||||
if (++symlinknest == 8)
|
||||
{
|
||||
free_node (currnode);
|
||||
free_node (oldnode);
|
||||
return grub_error (GRUB_ERR_SYMLINK_LOOP, "too deep nesting of symlinks");
|
||||
}
|
||||
|
||||
symlink = read_symlink (currnode);
|
||||
free_node (currnode);
|
||||
|
||||
if (!symlink)
|
||||
{
|
||||
free_node (oldnode);
|
||||
return grub_errno;
|
||||
}
|
||||
|
||||
/* The symlink is an absolute path, go back to the root inode. */
|
||||
if (symlink[0] == '/')
|
||||
{
|
||||
free_node (oldnode);
|
||||
oldnode = rootnode;
|
||||
}
|
||||
|
||||
/* Lookup the node the symlink points to. */
|
||||
find_file (symlink, oldnode, &currnode);
|
||||
grub_free (symlink);
|
||||
|
||||
if (grub_errno)
|
||||
{
|
||||
free_node (oldnode);
|
||||
return grub_errno;
|
||||
}
|
||||
}
|
||||
|
||||
free_node (oldnode);
|
||||
|
||||
/* Found the node! */
|
||||
if (!next || *next == '\0')
|
||||
{
|
||||
*currfound = currnode;
|
||||
foundtype = type;
|
||||
return 0;
|
||||
}
|
||||
|
||||
name = next;
|
||||
}
|
||||
|
||||
return grub_error (GRUB_ERR_FILE_NOT_FOUND, "file not found");
|
||||
}
|
||||
|
||||
if (!path || path[0] != '/')
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_FILENAME, "bad filename");
|
||||
return grub_errno;
|
||||
}
|
||||
|
||||
err = find_file (path, rootnode, foundnode);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
/* Check if the node that was found was of the expected type. */
|
||||
if (expecttype == GRUB_FSHELP_REG && foundtype != expecttype)
|
||||
return grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a regular file");
|
||||
else if (expecttype == GRUB_FSHELP_DIR && foundtype != expecttype)
|
||||
return grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a directory");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Read LEN bytes from the file NODE on disk DISK into the buffer BUF,
|
||||
beginning with the block POS. READ_HOOK should be set before
|
||||
reading a block from the file. GET_BLOCK is used to translate file
|
||||
blocks to disk blocks. The file is FILESIZE bytes big and the
|
||||
blocks have a size of LOG2BLOCKSIZE (in log2). */
|
||||
grub_ssize_t
|
||||
grub_fshelp_read_file (grub_disk_t disk, grub_fshelp_node_t node,
|
||||
void (*read_hook) (unsigned long sector,
|
||||
unsigned offset, unsigned length),
|
||||
int pos, unsigned int len, char *buf,
|
||||
int (*get_block) (grub_fshelp_node_t node, int block),
|
||||
unsigned int filesize, int log2blocksize)
|
||||
{
|
||||
int i;
|
||||
int blockcnt;
|
||||
int blocksize = 1 << (log2blocksize + GRUB_DISK_SECTOR_BITS);
|
||||
|
||||
/* Adjust len so it we can't read past the end of the file. */
|
||||
if (len > filesize)
|
||||
len = filesize;
|
||||
|
||||
blockcnt = ((len + pos)
|
||||
+ blocksize - 1) / blocksize;
|
||||
|
||||
for (i = pos / blocksize; i < blockcnt; i++)
|
||||
{
|
||||
int blknr;
|
||||
int blockoff = pos % blocksize;
|
||||
int blockend = blocksize;
|
||||
|
||||
int skipfirst = 0;
|
||||
|
||||
blknr = get_block (node, i);
|
||||
if (grub_errno)
|
||||
return -1;
|
||||
|
||||
blknr = blknr << log2blocksize;
|
||||
|
||||
/* Last block. */
|
||||
if (i == blockcnt - 1)
|
||||
{
|
||||
blockend = (len + pos) % blocksize;
|
||||
|
||||
/* The last portion is exactly blocksize. */
|
||||
if (!blockend)
|
||||
blockend = blocksize;
|
||||
}
|
||||
|
||||
/* First block. */
|
||||
if (i == pos / blocksize)
|
||||
{
|
||||
skipfirst = blockoff;
|
||||
blockend -= skipfirst;
|
||||
}
|
||||
|
||||
/* If the block number is 0 this block is not stored on disk but
|
||||
is zero filled instead. */
|
||||
if (blknr)
|
||||
{
|
||||
disk->read_hook = read_hook;
|
||||
grub_disk_read (disk, blknr, skipfirst,
|
||||
blockend, buf);
|
||||
disk->read_hook = 0;
|
||||
if (grub_errno)
|
||||
return -1;
|
||||
}
|
||||
else
|
||||
grub_memset (buf, blocksize - skipfirst, 0);
|
||||
|
||||
buf += blocksize - skipfirst;
|
||||
}
|
||||
|
||||
return len;
|
||||
}
|
||||
|
|
@ -0,0 +1,75 @@
|
|||
/* fshelp.h -- Filesystem helper functions */
|
||||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2004 Free Software Foundation, Inc.
|
||||
*
|
||||
* GRUB is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GRUB; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef GRUB_FSHELP_HEADER
|
||||
#define GRUB_FSHELP_HEADER 1
|
||||
|
||||
#include <grub/types.h>
|
||||
#include <grub/symbol.h>
|
||||
#include <grub/err.h>
|
||||
|
||||
typedef struct grub_fshelp_node *grub_fshelp_node_t;
|
||||
|
||||
enum grub_fshelp_filetype
|
||||
{
|
||||
GRUB_FSHELP_UNKNOWN,
|
||||
GRUB_FSHELP_REG,
|
||||
GRUB_FSHELP_DIR,
|
||||
GRUB_FSHELP_SYMLINK
|
||||
};
|
||||
|
||||
/* Lookup the node PATH. The node ROOTNODE describes the root of the
|
||||
directory tree. The node found is returned in FOUNDNODE, which is
|
||||
either a ROOTNODE or a new malloc'ed node. ITERATE_DIR is used to
|
||||
iterate over all directory entries in the current node.
|
||||
READ_SYMLINK is used to read the symlink if a node is a symlink.
|
||||
EXPECTTYPE is the type node that is expected by the called, an
|
||||
error is generated if the node is not of the expected type. Make
|
||||
sure you use the NESTED_FUNC_ATTR macro for HOOK, this is required
|
||||
because GCC has a nasty bug when using regparm=3. */
|
||||
grub_err_t
|
||||
EXPORT_FUNC(grub_fshelp_find_file) (const char *path,
|
||||
grub_fshelp_node_t rootnode,
|
||||
grub_fshelp_node_t *foundnode,
|
||||
int (*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)),
|
||||
char *(*read_symlink) (grub_fshelp_node_t node),
|
||||
enum grub_fshelp_filetype expect);
|
||||
|
||||
|
||||
/* Read LEN bytes from the file NODE on disk DISK into the buffer BUF,
|
||||
beginning with the block POS. READ_HOOK should be set before
|
||||
reading a block from the file. GET_BLOCK is used to translate file
|
||||
blocks to disk blocks. The file is FILESIZE bytes big and the
|
||||
blocks have a size of LOG2BLOCKSIZE (in log2). */
|
||||
grub_ssize_t
|
||||
EXPORT_FUNC(grub_fshelp_read_file) (grub_disk_t disk, grub_fshelp_node_t node,
|
||||
void (*read_hook) (unsigned long sector,
|
||||
unsigned offset,
|
||||
unsigned length),
|
||||
int pos, unsigned int len, char *buf,
|
||||
int (*get_block) (grub_fshelp_node_t node,
|
||||
int block),
|
||||
unsigned int filesize, int log2blocksize);
|
||||
|
||||
#endif /* ! GRUB_FSHELP_HEADER */
|
||||
Loading…
Reference in New Issue