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2004-05-24 Marco Gerards <metgerards@student.han.nl>

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Add support for UFS version 1 and 2.  Add support for the minix
	filesystem version 1 and 2, both the variants with 14 and 30 long
	filenames.

	* conf/i386-pc.rmk (grub_setup_SOURCES): Add fs/ufs.c and
	fs/minix.c.
	(grub_emu_SOURCES): Likewise.
	(pkgdata_MODULES): Add ufs.mod and minix.mod.
	(ufs_mod_SOURCES): New variable.
	(ufs_mod_CFLAGS): Likewise.
	(minix_mod_SOURCES): Likewise.
	(minix_mod_CFLAGS): Likewise.
	* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Add fs/ufs.c and
	fs/minix.c.
	(grubof_SOURCES): Likewise.
	* fs/ufs.c: New file.
	* fs/minix.c: New file.
	* include/grub/fs.h (grub_ufs_init): New prototype.
	(grub_ufs_fini): Likewise.
	(grub_minix_init): Likewise.
	(grub_minix_fini): Likewise.
	* util/grub-emu.c (main): Initialize and deinitialize UFS and
	minix fs.
This commit is contained in:
marco_g 2004-05-24 21:32:21 +00:00
parent cc2e748a08
commit 66e19ef8ba
9 changed files with 1518 additions and 23 deletions
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26
ChangeLog
View file

@ -1,3 +1,29 @@
2004-05-24 Marco Gerards <metgerards@student.han.nl>
Add support for UFS version 1 and 2. Add support for the minix
filesystem version 1 and 2, both the variants with 14 and 30 long
filenames.
* conf/i386-pc.rmk (grub_setup_SOURCES): Add fs/ufs.c and
fs/minix.c.
(grub_emu_SOURCES): Likewise.
(pkgdata_MODULES): Add ufs.mod and minix.mod.
(ufs_mod_SOURCES): New variable.
(ufs_mod_CFLAGS): Likewise.
(minix_mod_SOURCES): Likewise.
(minix_mod_CFLAGS): Likewise.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Add fs/ufs.c and
fs/minix.c.
(grubof_SOURCES): Likewise.
* fs/ufs.c: New file.
* fs/minix.c: New file.
* include/grub/fs.h (grub_ufs_init): New prototype.
(grub_ufs_fini): Likewise.
(grub_minix_init): Likewise.
(grub_minix_fini): Likewise.
* util/grub-emu.c (main): Initialize and deinitialize UFS and
minix fs.
2004-04-30 Jeroen Dekkers <jeroen@dekkers.cx>
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Add normal/arg.c,

128
conf/i386-pc.mk
View file

@ -289,11 +289,11 @@ grub_mkimage_LDFLAGS = -llzo
grub_setup_SOURCES = util/i386/pc/grub-setup.c util/i386/pc/biosdisk.c \
util/misc.c util/i386/pc/getroot.c kern/device.c kern/disk.c \
kern/err.c kern/misc.c disk/i386/pc/partition.c fs/fat.c fs/ext2.c \
kern/file.c kern/fs.c kern/env.c
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-kern_file.o grub_setup-kern_fs.o grub_setup-kern_env.o
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-kern_file.d grub_setup-kern_fs.d grub_setup-kern_env.d
fs/ufs.c fs/minix.c kern/file.c kern/fs.c kern/env.c
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-kern_file.o grub_setup-kern_fs.o grub_setup-kern_env.o
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-kern_file.d grub_setup-kern_fs.d grub_setup-kern_env.d
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-kern_file.o grub_setup-kern_fs.o grub_setup-kern_env.o
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-kern_file.o grub_setup-kern_fs.o grub_setup-kern_env.o
$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(grub_setup_LDFLAGS)
grub_setup-util_i386_pc_grub_setup.o: util/i386/pc/grub-setup.c
@ -384,6 +384,22 @@ grub_setup-fs_ext2.d: fs/ext2.c
-include grub_setup-fs_ext2.d
grub_setup-fs_ufs.o: fs/ufs.c
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_setup_CFLAGS) -c -o $@ $<
grub_setup-fs_ufs.d: fs/ufs.c
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_setup_CFLAGS) -M $< | sed 's,ufs\.o[ :]*,grub_setup-fs_ufs.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include grub_setup-fs_ufs.d
grub_setup-fs_minix.o: fs/minix.c
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_setup_CFLAGS) -c -o $@ $<
grub_setup-fs_minix.d: fs/minix.c
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_setup_CFLAGS) -M $< | sed 's,minix\.o[ :]*,grub_setup-fs_minix.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include grub_setup-fs_minix.d
grub_setup-kern_file.o: kern/file.c
$(BUILD_CC) -Ikern -I$(srcdir)/kern $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_setup_CFLAGS) -c -o $@ $<
@ -415,13 +431,13 @@ grub_emu_SOURCES = kern/main.c kern/device.c \
kern/misc.c kern/loader.c kern/rescue.c kern/term.c \
disk/i386/pc/partition.c kern/env.c commands/ls.c \
commands/terminal.c commands/boot.c commands/cmp.c commands/cat.c \
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c \
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c fs/ufs.c fs/minix.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
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-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
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-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
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-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
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-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: 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-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: 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-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
$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(grub_emu_LDFLAGS)
grub_emu-kern_main.o: kern/main.c
@ -592,6 +608,22 @@ grub_emu-fs_ext2.d: fs/ext2.c
-include grub_emu-fs_ext2.d
grub_emu-fs_ufs.o: fs/ufs.c
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
grub_emu-fs_ufs.d: fs/ufs.c
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -M $< | sed 's,ufs\.o[ :]*,grub_emu-fs_ufs.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include grub_emu-fs_ufs.d
grub_emu-fs_minix.o: fs/minix.c
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
grub_emu-fs_minix.d: fs/minix.c
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -M $< | sed 's,minix\.o[ :]*,grub_emu-fs_minix.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include grub_emu-fs_minix.d
grub_emu-normal_cmdline.o: normal/cmdline.c
$(BUILD_CC) -Inormal -I$(srcdir)/normal $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
@ -684,7 +716,7 @@ genmoddep-util_genmoddep.d: util/genmoddep.c
# Modules.
pkgdata_MODULES = _chain.mod _linux.mod fat.mod ext2.mod normal.mod hello.mod \
pkgdata_MODULES = _chain.mod _linux.mod fat.mod ufs.mod ext2.mod minix.mod normal.mod hello.mod \
vga.mod font.mod _multiboot.mod ls.mod boot.mod cmp.mod cat.mod terminal.mod
# For _chain.mod.
@ -804,6 +836,84 @@ ext2_mod-fs_ext2.d: fs/ext2.c
ext2_mod_CFLAGS = $(COMMON_CFLAGS)
# For ufs.mod.
ufs_mod_SOURCES = fs/ufs.c
CLEANFILES += ufs.mod mod-ufs.o mod-ufs.c pre-ufs.o ufs_mod-fs_ufs.o def-ufs.lst und-ufs.lst
MOSTLYCLEANFILES += ufs_mod-fs_ufs.d
DEFSYMFILES += def-ufs.lst
UNDSYMFILES += und-ufs.lst
ufs.mod: pre-ufs.o mod-ufs.o
-rm -f $@
$(LD) -r -o $@ $^
$(STRIP) --strip-unneeded -K grub_mod_init -K grub_mod_fini -R .note -R .comment $@
pre-ufs.o: ufs_mod-fs_ufs.o
-rm -f $@
$(LD) -r -o $@ $^
mod-ufs.o: mod-ufs.c
$(CC) $(CPPFLAGS) $(CFLAGS) $(ufs_mod_CFLAGS) -c -o $@ $<
mod-ufs.c: moddep.lst genmodsrc.sh
sh $(srcdir)/genmodsrc.sh 'ufs' $< > $@ || (rm -f $@; exit 1)
def-ufs.lst: pre-ufs.o
$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 ufs/' > $@
und-ufs.lst: pre-ufs.o
echo 'ufs' > $@
$(NM) -u -P -p $< | cut -f1 -d' ' >> $@
ufs_mod-fs_ufs.o: fs/ufs.c
$(CC) -Ifs -I$(srcdir)/fs $(CPPFLAGS) $(CFLAGS) $(ufs_mod_CFLAGS) -c -o $@ $<
ufs_mod-fs_ufs.d: fs/ufs.c
set -e; $(CC) -Ifs -I$(srcdir)/fs $(CPPFLAGS) $(CFLAGS) $(ufs_mod_CFLAGS) -M $< | sed 's,ufs\.o[ :]*,ufs_mod-fs_ufs.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include ufs_mod-fs_ufs.d
ufs_mod_CFLAGS = $(COMMON_CFLAGS)
# For minix.mod.
minix_mod_SOURCES = fs/minix.c
CLEANFILES += minix.mod mod-minix.o mod-minix.c pre-minix.o minix_mod-fs_minix.o def-minix.lst und-minix.lst
MOSTLYCLEANFILES += minix_mod-fs_minix.d
DEFSYMFILES += def-minix.lst
UNDSYMFILES += und-minix.lst
minix.mod: pre-minix.o mod-minix.o
-rm -f $@
$(LD) -r -o $@ $^
$(STRIP) --strip-unneeded -K grub_mod_init -K grub_mod_fini -R .note -R .comment $@
pre-minix.o: minix_mod-fs_minix.o
-rm -f $@
$(LD) -r -o $@ $^
mod-minix.o: mod-minix.c
$(CC) $(CPPFLAGS) $(CFLAGS) $(minix_mod_CFLAGS) -c -o $@ $<
mod-minix.c: moddep.lst genmodsrc.sh
sh $(srcdir)/genmodsrc.sh 'minix' $< > $@ || (rm -f $@; exit 1)
def-minix.lst: pre-minix.o
$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 minix/' > $@
und-minix.lst: pre-minix.o
echo 'minix' > $@
$(NM) -u -P -p $< | cut -f1 -d' ' >> $@
minix_mod-fs_minix.o: fs/minix.c
$(CC) -Ifs -I$(srcdir)/fs $(CPPFLAGS) $(CFLAGS) $(minix_mod_CFLAGS) -c -o $@ $<
minix_mod-fs_minix.d: fs/minix.c
set -e; $(CC) -Ifs -I$(srcdir)/fs $(CPPFLAGS) $(CFLAGS) $(minix_mod_CFLAGS) -M $< | sed 's,minix\.o[ :]*,minix_mod-fs_minix.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include minix_mod-fs_minix.d
minix_mod_CFLAGS = $(COMMON_CFLAGS)
# For _linux.mod.
_linux_mod_SOURCES = loader/i386/pc/linux.c
CLEANFILES += _linux.mod mod-_linux.o mod-_linux.c pre-_linux.o _linux_mod-loader_i386_pc_linux.o def-_linux.lst und-_linux.lst

14
conf/i386-pc.rmk
View file

@ -56,7 +56,7 @@ grub_mkimage_LDFLAGS = -llzo
grub_setup_SOURCES = util/i386/pc/grub-setup.c util/i386/pc/biosdisk.c \
util/misc.c util/i386/pc/getroot.c kern/device.c kern/disk.c \
kern/err.c kern/misc.c disk/i386/pc/partition.c fs/fat.c fs/ext2.c \
kern/file.c kern/fs.c kern/env.c
fs/ufs.c fs/minix.c kern/file.c kern/fs.c kern/env.c
# For grub
grub_emu_SOURCES = kern/main.c kern/device.c \
@ -64,7 +64,7 @@ grub_emu_SOURCES = kern/main.c kern/device.c \
kern/misc.c kern/loader.c kern/rescue.c kern/term.c \
disk/i386/pc/partition.c kern/env.c commands/ls.c \
commands/terminal.c commands/boot.c commands/cmp.c commands/cat.c \
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c \
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c fs/ufs.c fs/minix.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
grub_emu_LDFLAGS = -lncurses
@ -73,7 +73,7 @@ grub_emu_LDFLAGS = -lncurses
genmoddep_SOURCES = util/genmoddep.c
# Modules.
pkgdata_MODULES = _chain.mod _linux.mod fat.mod ext2.mod normal.mod hello.mod \
pkgdata_MODULES = _chain.mod _linux.mod fat.mod ufs.mod ext2.mod minix.mod normal.mod hello.mod \
vga.mod font.mod _multiboot.mod ls.mod boot.mod cmp.mod cat.mod terminal.mod
# For _chain.mod.
@ -88,6 +88,14 @@ fat_mod_CFLAGS = $(COMMON_CFLAGS)
ext2_mod_SOURCES = fs/ext2.c
ext2_mod_CFLAGS = $(COMMON_CFLAGS)
# For ufs.mod.
ufs_mod_SOURCES = fs/ufs.c
ufs_mod_CFLAGS = $(COMMON_CFLAGS)
# For minix.mod.
minix_mod_SOURCES = fs/minix.c
minix_mod_CFLAGS = $(COMMON_CFLAGS)
# For _linux.mod.
_linux_mod_SOURCES = loader/i386/pc/linux.c
_linux_mod_CFLAGS = $(COMMON_CFLAGS)

48
conf/powerpc-ieee1275.mk
View file

@ -25,16 +25,16 @@ 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 \
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c \
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c fs/ufs.c fs/minix.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-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-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-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-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-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-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-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-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
@ -157,6 +157,22 @@ grub_emu-fs_ext2.d: fs/ext2.c
-include grub_emu-fs_ext2.d
grub_emu-fs_ufs.o: fs/ufs.c
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
grub_emu-fs_ufs.d: fs/ufs.c
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -M $< | sed 's,ufs\.o[ :]*,grub_emu-fs_ufs.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include grub_emu-fs_ufs.d
grub_emu-fs_minix.o: fs/minix.c
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
grub_emu-fs_minix.d: fs/minix.c
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -M $< | sed 's,minix\.o[ :]*,grub_emu-fs_minix.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include grub_emu-fs_minix.d
grub_emu-normal_cmdline.o: normal/cmdline.c
$(BUILD_CC) -Inormal -I$(srcdir)/normal $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grub_emu_CFLAGS) -c -o $@ $<
@ -284,14 +300,14 @@ grubof_SOURCES = boot/powerpc/ieee1275/cmain.c boot/powerpc/ieee1275/ieee1275.c
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.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 normal/cmdline.c \
kern/powerpc/ieee1275/openfw.c fs/ext2.c fs/ufs.c fs/minix.c normal/cmdline.c \
normal/command.c normal/main.c normal/menu.c \
disk/powerpc/ieee1275/ofdisk.c disk/powerpc/ieee1275/partition.c \
kern/env.c normal/arg.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-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
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-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
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-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
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-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: 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-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: 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-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
$(BUILD_CC) -o $@ $^ $(BUILD_LDFLAGS) $(grubof_LDFLAGS)
grubof-boot_powerpc_ieee1275_cmain.o: boot/powerpc/ieee1275/cmain.c
@ -446,6 +462,22 @@ grubof-fs_ext2.d: fs/ext2.c
-include grubof-fs_ext2.d
grubof-fs_ufs.o: fs/ufs.c
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grubof_CFLAGS) -c -o $@ $<
grubof-fs_ufs.d: fs/ufs.c
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grubof_CFLAGS) -M $< | sed 's,ufs\.o[ :]*,grubof-fs_ufs.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include grubof-fs_ufs.d
grubof-fs_minix.o: fs/minix.c
$(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grubof_CFLAGS) -c -o $@ $<
grubof-fs_minix.d: fs/minix.c
set -e; $(BUILD_CC) -Ifs -I$(srcdir)/fs $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grubof_CFLAGS) -M $< | sed 's,minix\.o[ :]*,grubof-fs_minix.o $@ : ,g' > $@; [ -s $@ ] || rm -f $@
-include grubof-fs_minix.d
grubof-normal_cmdline.o: normal/cmdline.c
$(BUILD_CC) -Inormal -I$(srcdir)/normal $(BUILD_CPPFLAGS) $(BUILD_CFLAGS) -DGRUB_UTIL=1 $(grubof_CFLAGS) -c -o $@ $<

4
conf/powerpc-ieee1275.rmk
View file

@ -25,7 +25,7 @@ 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 \
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c \
util/i386/pc/biosdisk.c fs/fat.c fs/ext2.c fs/ufs.c fs/minix.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 \
@ -38,7 +38,7 @@ grubof_SOURCES = boot/powerpc/ieee1275/cmain.c boot/powerpc/ieee1275/ieee1275.c
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.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 normal/cmdline.c \
kern/powerpc/ieee1275/openfw.c fs/ext2.c fs/ufs.c fs/minix.c normal/cmdline.c \
normal/command.c normal/main.c normal/menu.c \
disk/powerpc/ieee1275/ofdisk.c disk/powerpc/ieee1275/partition.c \
kern/env.c normal/arg.c

621
fs/minix.c Normal file
View file

@ -0,0 +1,621 @@
/* minix.c - The minix filesystem, version 1 and 2. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2004 Free Software Foundation, Inc.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#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>
#define GRUB_MINIX_MAGIC 0x137F
#define GRUB_MINIX2_MAGIC 0x2468
#define GRUB_MINIX_MAGIC_30 0x138F
#define GRUB_MINIX2_MAGIC_30 0x2478
#define GRUB_MINIX_BSIZE 1024U
#define GRUB_MINIX_LOG2_BSIZE 1
#define GRUB_MINIX_ROOT_INODE 1
#define GRUB_MINIX_MAX_SYMLNK_CNT 8
#define GRUB_MINIX_SBLOCK 2
#define GRUB_MINIX_IFDIR 0040000U
#define GRUB_MINIX_IFLNK 0120000U
#define GRUB_MINIX_INODE(data,field) (data->version == 1 ? \
data->inode. field : data->inode2. field)
#define GRUB_MINIX_INODE_ENDIAN(data,field,bits1,bits2) (data->version == 1 ? \
grub_le_to_cpu##bits1 (data->inode.field) : \
grub_le_to_cpu##bits2 (data->inode2.field))
#define GRUB_MINIX_INODE_SIZE(data) GRUB_MINIX_INODE_ENDIAN (data,size,16,32)
#define GRUB_MINIX_INODE_MODE(data) GRUB_MINIX_INODE_ENDIAN (data,mode,16,16)
#define GRUB_MINIX_INODE_DIR_ZONES(data,blk) GRUB_MINIX_INODE_ENDIAN \
(data,dir_zones[blk],16,32)
#define GRUB_MINIX_INODE_INDIR_ZONE(data) \
GRUB_MINIX_INODE_ENDIAN (data,indir_zone,16,32)
#define GRUB_MINIX_INODE_DINDIR_ZONE(data) \
GRUB_MINIX_INODE_ENDIAN (data,double_indir_zone,16,32)
#define GRUB_MINIX_INODE_BLKSZ(data) (data->version == 1 ? 2 : 4)
#define GRUB_MINIX_LOG2_ZONESZ (GRUB_MINIX_LOG2_BSIZE \
+ grub_le_to_cpu16 (sblock->log2_zone_size))
#define GRUB_MINIX_ZONESZ (GRUB_MINIX_BSIZE \
<< grub_le_to_cpu16 (sblock->log2_zone_size))
struct grub_minix_sblock
{
grub_uint16_t inode_cnt;
grub_uint16_t zone_cnt;
grub_uint16_t inode_bmap_size;
grub_uint16_t zone_bmap_size;
grub_uint16_t first_data_zone;
grub_uint16_t log2_zone_size;
grub_uint32_t max_file_size;
grub_uint16_t magic;
};
struct grub_minix_inode
{
grub_uint16_t mode;
grub_uint16_t uid;
grub_uint16_t size;
grub_uint32_t ctime;
grub_uint8_t gid;
grub_uint8_t nlinks;
grub_uint16_t dir_zones[7];
grub_uint16_t indir_zone;
grub_uint16_t double_indir_zone;
};
struct grub_minix2_inode
{
grub_uint16_t mode;
grub_uint16_t nlinks;
grub_uint16_t uid;
grub_uint16_t gid;
grub_uint32_t size;
grub_uint32_t atime;
grub_uint32_t mtime;
grub_uint32_t ctime;
grub_uint32_t dir_zones[7];
grub_uint32_t indir_zone;
grub_uint32_t double_indir_zone;
grub_uint32_t unused;
};
/* Information about a "mounted" minix filesystem. */
struct grub_minix_data
{
struct grub_minix_sblock sblock;
struct grub_minix_inode inode;
struct grub_minix2_inode inode2;
int ino;
int linknest;
grub_disk_t disk;
int version;
int filename_size;
};
#ifndef GRUB_UTIL
static grub_dl_t my_mod;
#endif
static grub_err_t grub_minix_find_file (struct grub_minix_data *data,
const char *path);
static int
grub_minix_get_file_block (struct grub_minix_data *data, unsigned int blk)
{
struct grub_minix_sblock *sblock = &data->sblock;
int indir;
/* Read the block pointer in ZONE, on the offset NUM. */
int grub_get_indir (int zone, int num)
{
if (data->version == 1)
{
grub_uint16_t indir;
grub_disk_read (data->disk,
zone << GRUB_MINIX_LOG2_ZONESZ,
sizeof (grub_uint16_t) * num,
sizeof (grub_uint16_t), (char *) &indir);
return grub_le_to_cpu16 (indir);
}
else
{
grub_uint32_t indir;
grub_disk_read (data->disk,
zone << GRUB_MINIX_LOG2_ZONESZ,
sizeof (grub_uint32_t) * num,
sizeof (grub_uint32_t), (char *) &indir);
return grub_le_to_cpu32 (indir);
}
}
/* Direct block. */
if (blk < 7)
return GRUB_MINIX_INODE_DIR_ZONES (data, blk);
/* Indirect block. */
blk -= 7;
if (blk < GRUB_MINIX_ZONESZ / GRUB_MINIX_INODE_BLKSZ (data))
{
indir = grub_get_indir (GRUB_MINIX_INODE_INDIR_ZONE (data), blk);
return indir;
}
/* Double indirect block. */
blk -= GRUB_MINIX_ZONESZ / GRUB_MINIX_INODE_BLKSZ (data);
if (blk < (GRUB_MINIX_ZONESZ / GRUB_MINIX_INODE_BLKSZ (data))
* (GRUB_MINIX_ZONESZ / GRUB_MINIX_INODE_BLKSZ (data)))
{
indir = grub_get_indir (GRUB_MINIX_INODE_DINDIR_ZONE (data),
blk / GRUB_MINIX_ZONESZ);
indir = grub_get_indir (indir, blk % GRUB_MINIX_ZONESZ);
return indir;
}
/* This should never happen. */
grub_error (GRUB_ERR_OUT_OF_RANGE, "file bigger than maximum size");
return 0;
}
/* 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_minix_read_file (struct grub_minix_data *data,
void (*read_hook) (unsigned long sector,
unsigned offset, unsigned length),
int pos, unsigned int len, char *buf)
{
struct grub_minix_sblock *sblock = &data->sblock;
int i;
int blockcnt;
/* Adjust len so it we can't read past the end of the file. */
if (len > GRUB_MINIX_INODE_SIZE (data))
len = GRUB_MINIX_INODE_SIZE (data);
blockcnt = (len + pos + GRUB_MINIX_BSIZE - 1) / GRUB_MINIX_BSIZE;
for (i = pos / GRUB_MINIX_BSIZE; i < blockcnt; i++)
{
int blknr;
int blockoff = pos % GRUB_MINIX_BSIZE;
int blockend = GRUB_MINIX_BSIZE;
int skipfirst = 0;
blknr = grub_minix_get_file_block (data, i);
if (grub_errno)
return -1;
/* Last block. */
if (i == blockcnt - 1)
{
blockend = (len + pos) % GRUB_MINIX_BSIZE;
if (!blockend)
blockend = GRUB_MINIX_BSIZE;
}
/* First block. */
if (i == (pos / (int) GRUB_MINIX_BSIZE))
{
skipfirst = blockoff;
blockend -= skipfirst;
}
data->disk->read_hook = read_hook;
grub_disk_read (data->disk, blknr << GRUB_MINIX_LOG2_ZONESZ,
skipfirst, blockend, buf);
data->disk->read_hook = 0;
if (grub_errno)
return -1;
buf += GRUB_MINIX_BSIZE - skipfirst;
}
return len;
}
/* Read inode INO from the mounted filesystem described by DATA. This
inode is used by default now. */
static grub_err_t
grub_minix_read_inode (struct grub_minix_data *data, int ino)
{
struct grub_minix_sblock *sblock = &data->sblock;
/* Block in which the inode is stored. */
int block;
data->ino = ino;
/* The first inode in minix is inode 1. */
ino--;
block = ((2 + grub_le_to_cpu16 (sblock->inode_bmap_size)
+ grub_le_to_cpu16 (sblock->zone_bmap_size))
<< GRUB_MINIX_LOG2_BSIZE);
if (data->version == 1)
{
block += ino / (GRUB_DISK_SECTOR_SIZE / sizeof (struct grub_minix_inode));
int offs = (ino % (GRUB_DISK_SECTOR_SIZE
/ sizeof (struct grub_minix_inode))
* sizeof (struct grub_minix_inode));
grub_disk_read (data->disk, block, offs,
sizeof (struct grub_minix_inode), (char *) &data->inode);
}
else
{
block += ino / (GRUB_DISK_SECTOR_SIZE
/ sizeof (struct grub_minix2_inode));
int offs = (ino
% (GRUB_DISK_SECTOR_SIZE / sizeof (struct grub_minix2_inode))
* sizeof (struct grub_minix2_inode));
grub_disk_read (data->disk, block, offs,
sizeof (struct grub_minix2_inode),(char *) &data->inode2);
}
return GRUB_ERR_NONE;
}
/* Lookup the symlink the current inode points to. INO is the inode
number of the directory the symlink is relative to. */
static grub_err_t
grub_minix_lookup_symlink (struct grub_minix_data *data, int ino)
{
char symlink[GRUB_MINIX_INODE_SIZE (data) + 1];
if (++data->linknest > GRUB_MINIX_MAX_SYMLNK_CNT)
return grub_error (GRUB_ERR_SYMLINK_LOOP, "too deep nesting of symlinks");
if (grub_minix_read_file (data, 0, 0,
GRUB_MINIX_INODE_SIZE (data), symlink) < 0)
return grub_errno;
symlink[GRUB_MINIX_INODE_SIZE (data)] = '\0';
/* The symlink is an absolute path, go back to the root inode. */
if (symlink[0] == '/')
ino = GRUB_MINIX_ROOT_INODE;
/* Now load in the old inode. */
if (grub_minix_read_inode (data, ino))
return grub_errno;
grub_minix_find_file (data, symlink);
if (grub_errno)
grub_error (grub_errno, "Can not follow symlink `%s'.", symlink);
return grub_errno;
}
/* Find the file with the pathname PATH on the filesystem described by
DATA. */
static grub_err_t
grub_minix_find_file (struct grub_minix_data *data, const char *path)
{
char fpath[grub_strlen (path)];
char *name = fpath;
char *next;
unsigned int pos = 0;
int dirino;
grub_strncpy (fpath, path, grub_strlen (path));
/* Skip the first slash. */
if (name[0] == '/')
{
name++;
if (!*name)
return 0;
}
/* Extract the actual part from the pathname. */
next = grub_strchr (name, '/');
if (next)
{
next[0] = '\0';
next++;
}
do
{
grub_uint16_t ino;
char filename[data->filename_size + 1];
if (grub_strlen (name) == 0)
return GRUB_ERR_NONE;
if (grub_minix_read_file (data, 0, pos, sizeof (ino),
(char *) &ino) < 0)
return grub_errno;
if (grub_minix_read_file (data, 0, pos + sizeof (ino),
data->filename_size, (char *) filename)< 0)
return grub_errno;
filename[data->filename_size] = '\0';
/* Check if the current direntry matches the current part of the
pathname. */
if (!grub_strcmp (name, filename))
{
dirino = data->ino;
grub_minix_read_inode (data, grub_le_to_cpu16 (ino));
/* Follow the symlink. */
if ((GRUB_MINIX_INODE_MODE (data)
& GRUB_MINIX_IFLNK) == GRUB_MINIX_IFLNK)
{
grub_minix_lookup_symlink (data, dirino);
if (grub_errno)
return grub_errno;
}
if (!next)
return 0;
pos = 0;
name = next;
next = grub_strchr (name, '/');
if (next)
{
next[0] = '\0';
next++;
}
if ((GRUB_MINIX_INODE_MODE (data)
& GRUB_MINIX_IFDIR) != GRUB_MINIX_IFDIR)
return grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a directory");
continue;
}
pos += sizeof (ino) + data->filename_size;
} while (pos < GRUB_MINIX_INODE_SIZE (data));
grub_error (GRUB_ERR_FILE_NOT_FOUND, "file not found");
return grub_errno;
}
/* Mount the filesystem on the disk DISK. */
static struct grub_minix_data *
grub_minix_mount (grub_disk_t disk)
{
struct grub_minix_data *data;
data = grub_malloc (sizeof (struct grub_minix_data));
if (!data)
return 0;
/* Read the superblock. */
grub_disk_read (disk, GRUB_MINIX_SBLOCK, 0,
sizeof (struct grub_minix_sblock),(char *) &data->sblock);
if (grub_le_to_cpu16 (data->sblock.magic) == GRUB_MINIX_MAGIC)
{
data->version = 1;
data->filename_size = 14;
}
else if (grub_le_to_cpu16 (data->sblock.magic) == GRUB_MINIX2_MAGIC)
{
data->version = 2;
data->filename_size = 14;
}
else if (grub_le_to_cpu16 (data->sblock.magic) == GRUB_MINIX_MAGIC_30)
{
data->version = 1;
data->filename_size = 30;
}
else if (grub_le_to_cpu16 (data->sblock.magic) == GRUB_MINIX2_MAGIC_30)
{
data->version = 2;
data->filename_size = 30;
}
else
{
grub_free (data);
grub_error (GRUB_ERR_BAD_FS, "not an minix filesystem");
return 0;
}
data->disk = disk;
data->linknest = 0;
return data;
}
static grub_err_t
grub_minix_dir (grub_device_t device, const char *path,
int (*hook) (const char *filename, int dir))
{
struct grub_minix_data *data = 0;
struct grub_minix_sblock *sblock;
unsigned int pos = 0;
data = grub_minix_mount (device->disk);
if (!data)
return grub_errno;
grub_minix_read_inode (data, GRUB_MINIX_ROOT_INODE);
if (grub_errno)
goto fail;
sblock = &data->sblock;
grub_minix_find_file (data, path);
if (grub_errno)
goto fail;
if ((GRUB_MINIX_INODE_MODE (data) & GRUB_MINIX_IFDIR) != GRUB_MINIX_IFDIR)
{
grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a directory");
goto fail;
}
while (pos < GRUB_MINIX_INODE_SIZE (data))
{
grub_uint16_t ino;
char filename[data->filename_size + 1];
int dirino = data->ino;
if (grub_minix_read_file (data, 0, pos, sizeof (ino),
(char *) &ino) < 0)
return grub_errno;
if (grub_minix_read_file (data, 0, pos + sizeof (ino),
data->filename_size,
(char *) filename) < 0)
return grub_errno;
filename[data->filename_size] = '\0';
/* The filetype is not stored in the dirent. Read the inode to
find out the filetype. This *REALLY* sucks. */
grub_minix_read_inode (data, grub_le_to_cpu16 (ino));
if (hook (filename, ((GRUB_MINIX_INODE_MODE (data)
& GRUB_MINIX_IFDIR) == GRUB_MINIX_IFDIR)) ? 1 : 0)
break;
/* Load the old inode back in. */
grub_minix_read_inode (data, dirino);
pos += sizeof (ino) + data->filename_size;
}
fail:
grub_free (data);
return grub_errno;
}
/* Open a file named NAME and initialize FILE. */
static grub_err_t
grub_minix_open (struct grub_file *file, const char *name)
{
struct grub_minix_data *data;
data = grub_minix_mount (file->device->disk);
if (!data)
return grub_errno;
/* Open the inode op the root directory. */
grub_minix_read_inode (data, GRUB_MINIX_ROOT_INODE);
if (grub_errno)
{
grub_free (data);
return grub_errno;
}
if (!name || name[0] != '/')
{
grub_error (GRUB_ERR_BAD_FILENAME, "bad filename");
return grub_errno;
}
/* Traverse the directory tree to the node that should be
opened. */
grub_minix_find_file (data, name);
if (grub_errno)
{
grub_free (data);
return grub_errno;
}
file->data = data;
file->size = GRUB_MINIX_INODE_SIZE (data);
return GRUB_ERR_NONE;
}
static grub_ssize_t
grub_minix_read (grub_file_t file, char *buf, grub_ssize_t len)
{
struct grub_minix_data *data =
(struct grub_minix_data *) file->data;
return grub_minix_read_file (data, file->read_hook, file->offset, len, buf);
}
static grub_err_t
grub_minix_close (grub_file_t file)
{
grub_free (file->data);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_minix_label (grub_device_t device __attribute ((unused)),
char **label __attribute ((unused)))
{
return GRUB_ERR_NONE;
}
static struct grub_fs grub_minix_fs =
{
.name = "minix",
.dir = grub_minix_dir,
.open = grub_minix_open,
.read = grub_minix_read,
.close = grub_minix_close,
.label = grub_minix_label,
.next = 0
};
#ifdef GRUB_UTIL
void
grub_minix_init (void)
{
grub_fs_register (&grub_minix_fs);
}
void
grub_minix_fini (void)
{
grub_fs_unregister (&grub_minix_fs);
}
#else /* ! GRUB_UTIL */
GRUB_MOD_INIT
{
grub_fs_register (&grub_minix_fs);
my_mod = mod;
}
GRUB_MOD_FINI
{
grub_fs_unregister (&grub_minix_fs);
}
#endif /* ! GRUB_UTIL */

690
fs/ufs.c Normal file
View file

@ -0,0 +1,690 @@
/* ufs.c - Unix File System */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2004 Free Software Foundation, Inc.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#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>
#define GRUB_UFS_MAGIC 0x11954
#define GRUB_UFS2_MAGIC 0x19540119
#define GRUB_UFS_INODE 2
#define GRUB_UFS_FILETYPE_DIR 4
#define GRUB_UFS_FILETYPE_LNK 10
#define GRUB_UFS_MAX_SYMLNK_CNT 8
#define GRUB_UFS_DIRBLKS 12
#define GRUB_UFS_INDIRBLKS 3
#define GRUB_UFS_ATTR_DIR 040000
/* Calculate in which group the inode can be found. */
#define inode_group(inode,sblock) ()
#define UFS_BLKSZ(sblock) (grub_le_to_cpu32 (sblock->bsize))
#define INODE(data,field) (data->ufs_type == UFS1 ? \
data->inode. field : data->inode2. field)
#define INODE_ENDIAN(data,field,bits1,bits2) (data->ufs_type == UFS1 ? \
grub_le_to_cpu##bits1 (data->inode.field) : \
grub_le_to_cpu##bits2 (data->inode2.field))
#define INODE_SIZE(data) INODE_ENDIAN (data,size,32,64)
#define INODE_MODE(data) INODE_ENDIAN (data,mode,16,16)
#define INODE_BLKSZ(data) (data->ufs_type == UFS1 ? 32 : 64)
#define INODE_DIRBLOCKS(data,blk) INODE_ENDIAN \
(data,blocks.dir_blocks[blk],32,64)
#define INODE_INDIRBLOCKS(data,blk) INODE_ENDIAN \
(data,blocks.indir_blocks[blk],32,64)
/* The blocks on which the superblock can be found. */
static int sblocklist[] = { 128, 16, 0, 512, -1 };
struct grub_ufs_sblock
{
grub_uint8_t unused[16];
/* The offset of the inodes in the cylinder group. */
grub_uint32_t inoblk_offs;
grub_uint8_t unused2[4];
/* The start of the cylinder group. */
grub_uint32_t cylg_offset;
grub_uint8_t unused3[20];
/* The size of a block in bytes. */
grub_int32_t bsize;
grub_uint8_t unused4[48];
/* The size of filesystem blocks to disk blocks. */
grub_uint32_t log2_blksz;
grub_uint8_t unused5[80];
/* Inodes stored per cylinder group. */
grub_uint32_t ino_per_group;
/* The frags per cylinder group. */
grub_uint32_t frags_per_group;
grub_uint8_t unused7[1180];
/* Magic value to check if this is really a UFS filesystem. */
grub_uint32_t magic;
};
/* UFS inode. */
struct grub_ufs_inode
{
grub_uint16_t mode;
grub_uint16_t nlinks;
grub_uint16_t uid;
grub_uint16_t gid;
grub_int64_t size;
grub_uint64_t atime;
grub_uint64_t mtime;
grub_uint64_t ctime;
union
{
struct
{
grub_uint32_t dir_blocks[GRUB_UFS_DIRBLKS];
grub_uint32_t indir_blocks[GRUB_UFS_INDIRBLKS];
} blocks;
grub_uint8_t symlink[(GRUB_UFS_DIRBLKS + GRUB_UFS_INDIRBLKS) * 4];
};
grub_uint32_t flags;
grub_uint32_t nblocks;
grub_uint32_t gen;
grub_uint32_t unused;
grub_uint8_t pad[12];
};
/* UFS inode. */
struct grub_ufs2_inode
{
grub_uint16_t mode;
grub_uint16_t nlinks;
grub_uint32_t uid;
grub_uint32_t gid;
grub_uint32_t blocksize;
grub_int64_t size;
grub_int64_t nblocks;
grub_uint64_t atime;
grub_uint64_t mtime;
grub_uint64_t ctime;
grub_uint64_t create_time;
grub_uint32_t atime_sec;
grub_uint32_t mtime_sec;
grub_uint32_t ctime_sec;
grub_uint32_t create_time_sec;
grub_uint32_t gen;
grub_uint32_t kernel_flags;
grub_uint32_t flags;
grub_uint32_t extsz;
grub_uint64_t ext[2];
union
{
struct
{
grub_uint64_t dir_blocks[GRUB_UFS_DIRBLKS];
grub_uint64_t indir_blocks[GRUB_UFS_INDIRBLKS];
} blocks;
grub_uint8_t symlink[(GRUB_UFS_DIRBLKS + GRUB_UFS_INDIRBLKS) * 8];
};
grub_uint8_t unused[24];
};
/* Directory entry. */
struct grub_ufs_dirent
{
grub_uint32_t ino;
grub_uint16_t direntlen;
grub_uint8_t filetype;
grub_uint8_t namelen;
};
/* Information about a "mounted" ufs filesystem. */
struct grub_ufs_data
{
struct grub_ufs_sblock sblock;
grub_disk_t disk;
union
{
struct grub_ufs_inode inode;
struct grub_ufs2_inode inode2;
};
enum
{
UFS1,
UFS2,
UNKNOWN
} ufs_type;
int ino;
int linknest;
};
#ifndef GRUB_UTIL
static grub_dl_t my_mod;
#endif
/* Forward declaration. */
static grub_err_t grub_ufs_find_file (struct grub_ufs_data *data,
const char *path);
static int
grub_ufs_get_file_block (struct grub_ufs_data *data, unsigned int blk)
{
struct grub_ufs_sblock *sblock = &data->sblock;
unsigned int indirsz;
/* Direct. */
if (blk < GRUB_UFS_DIRBLKS)
return INODE_DIRBLOCKS (data, blk);
blk -= GRUB_UFS_DIRBLKS;
indirsz = UFS_BLKSZ (sblock) / INODE_BLKSZ (data);
/* Single indirect block. */
if (blk < indirsz)
{
grub_uint32_t indir[UFS_BLKSZ (sblock)];
grub_disk_read (data->disk, INODE_INDIRBLOCKS (data, 0),
0, sizeof (indir), (char *) indir);
return indir[blk];
}
blk -= indirsz;
/* Double indirect block. */
if (blk < UFS_BLKSZ (sblock) / indirsz)
{
grub_uint32_t indir[UFS_BLKSZ (sblock)];
grub_disk_read (data->disk, INODE_INDIRBLOCKS (data, 1),
0, sizeof (indir), (char *) indir);
grub_disk_read (data->disk, indir[blk / indirsz],
0, sizeof (indir), (char *) indir);
return indir[blk % indirsz];
}
grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"ufs does not support tripple indirect blocks");
return 0;
}
/* 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_ufs_read_file (struct grub_ufs_data *data,
void (*read_hook) (unsigned long sector,
unsigned offset, unsigned length),
int pos, unsigned int len, char *buf)
{
struct grub_ufs_sblock *sblock = &data->sblock;
int i;
int blockcnt;
/* Adjust len so it we can't read past the end of the file. */
if (len > INODE_SIZE (data))
len = INODE_SIZE (data);
blockcnt = (len + pos + UFS_BLKSZ (sblock) - 1) / UFS_BLKSZ (sblock);
for (i = pos / UFS_BLKSZ (sblock); i < blockcnt; i++)
{
int blknr;
int blockoff = pos % UFS_BLKSZ (sblock);
int blockend = UFS_BLKSZ (sblock);
int skipfirst = 0;
blknr = grub_ufs_get_file_block (data, i);
if (grub_errno)
return -1;
/* Last block. */
if (i == blockcnt - 1)
{
blockend = (len + pos) % UFS_BLKSZ (sblock);
if (!blockend)
blockend = UFS_BLKSZ (sblock);
}
/* First block. */
if (i == (pos / (int) UFS_BLKSZ (sblock)))
{
skipfirst = blockoff;
blockend -= skipfirst;
}
/* XXX: 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 << grub_le_to_cpu32 (data->sblock.log2_blksz),
skipfirst, blockend, buf);
data->disk->read_hook = 0;
if (grub_errno)
return -1;
}
else
grub_memset (buf, UFS_BLKSZ (sblock) - skipfirst, 0);
buf += UFS_BLKSZ (sblock) - skipfirst;
}
return len;
}
/* Read inode INO from the mounted filesystem described by DATA. This
inode is used by default now. */
static grub_err_t
grub_ufs_read_inode (struct grub_ufs_data *data, int ino)
{
struct grub_ufs_sblock *sblock = &data->sblock;
/* Determine the group the inode is in. */
int group = ino / grub_le_to_cpu32 (sblock->ino_per_group);
/* Determine the inode within the group. */
int grpino = ino % grub_le_to_cpu32 (sblock->ino_per_group);
/* The first block of the group. */
int grpblk = group * (grub_le_to_cpu32 (sblock->frags_per_group));
if (data->ufs_type == UFS1)
{
struct grub_ufs_inode *inode = &data->inode;
grub_disk_read (data->disk,
(((grub_le_to_cpu32 (sblock->inoblk_offs) + grpblk)
<< grub_le_to_cpu32 (data->sblock.log2_blksz)))
+ grpino / 4,
(grpino % 4) * sizeof (struct grub_ufs_inode),
sizeof (struct grub_ufs_inode),
(char *) inode);
}
else
{
struct grub_ufs2_inode *inode = &data->inode2;
grub_disk_read (data->disk,
(((grub_le_to_cpu32 (sblock->inoblk_offs) + grpblk)
<< grub_le_to_cpu32 (data->sblock.log2_blksz)))
+ grpino / 2,
(grpino % 2) * sizeof (struct grub_ufs2_inode),
sizeof (struct grub_ufs2_inode),
(char *) inode);
}
data->ino = ino;
return grub_errno;
}
/* Lookup the symlink the current inode points to. INO is the inode
number of the directory the symlink is relative to. */
static grub_err_t
grub_ufs_lookup_symlink (struct grub_ufs_data *data, int ino)
{
char symlink[INODE_SIZE (data)];
if (++data->linknest > GRUB_UFS_MAX_SYMLNK_CNT)
return grub_error (GRUB_ERR_SYMLINK_LOOP, "too deep nesting of symlinks");
if (INODE_SIZE (data) < (GRUB_UFS_DIRBLKS + GRUB_UFS_INDIRBLKS
* INODE_BLKSZ (data)))
grub_strcpy (symlink, INODE (data, symlink));
else
{
grub_disk_read (data->disk,
(INODE_DIRBLOCKS (data, 0)
<< grub_le_to_cpu32 (data->sblock.log2_blksz)),
0, INODE_SIZE (data), symlink);
symlink[INODE_SIZE (data)] = '\0';
}
/* The symlink is an absolute path, go back to the root inode. */
if (symlink[0] == '/')
ino = GRUB_UFS_INODE;
/* Now load in the old inode. */
if (grub_ufs_read_inode (data, ino))
return grub_errno;
grub_ufs_find_file (data, symlink);
if (grub_errno)
grub_error (grub_errno, "Can not follow symlink `%s'.", symlink);
return grub_errno;
}
/* Find the file with the pathname PATH on the filesystem described by
DATA. */
static grub_err_t
grub_ufs_find_file (struct grub_ufs_data *data, const char *path)
{
char fpath[grub_strlen (path)];
char *name = fpath;
char *next;
unsigned int pos = 0;
int dirino;
grub_strncpy (fpath, path, grub_strlen (path));
/* Skip the first slash. */
if (name[0] == '/')
{
name++;
if (!*name)
return 0;
}
/* Extract the actual part from the pathname. */
next = grub_strchr (name, '/');
if (next)
{
next[0] = '\0';
next++;
}
do
{
struct grub_ufs_dirent dirent;
if (grub_strlen (name) == 0)
return GRUB_ERR_NONE;
if (grub_ufs_read_file (data, 0, pos, sizeof (dirent),
(char *) &dirent) < 0)
return grub_errno;
{
char filename[dirent.namelen + 1];
if (grub_ufs_read_file (data, 0, pos + sizeof (dirent),
dirent.namelen, filename) < 0)
return grub_errno;
filename[dirent.namelen] = '\0';
if (!grub_strcmp (name, filename))
{
dirino = data->ino;
grub_ufs_read_inode (data, grub_le_to_cpu32 (dirent.ino));
if (dirent.filetype == GRUB_UFS_FILETYPE_LNK)
{
grub_ufs_lookup_symlink (data, dirino);
if (grub_errno)
return grub_errno;
}
if (!next)
return 0;
pos = 0;
name = next;
next = grub_strchr (name, '/');
if (next)
{
next[0] = '\0';
next++;
}
if (!(dirent.filetype & GRUB_UFS_FILETYPE_DIR))
return grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a directory");
continue;
}
}
pos += grub_le_to_cpu16 (dirent.direntlen);
} while (pos < grub_le_to_cpu32 (INODE_SIZE (data)));
grub_error (GRUB_ERR_FILE_NOT_FOUND, "file not found");
return grub_errno;
}
/* Mount the filesystem on the disk DISK. */
static struct grub_ufs_data *
grub_ufs_mount (grub_disk_t disk)
{
struct grub_ufs_data *data;
int *sblklist = sblocklist;
data = grub_malloc (sizeof (struct grub_ufs_data));
if (!data)
return 0;
/* Find a UFS1 or UFS2 sblock. */
data->ufs_type = UNKNOWN;
while (*sblklist != -1)
{
grub_disk_read (disk, *sblklist, 0, sizeof (struct grub_ufs_sblock),
(char *) &data->sblock);
if (grub_errno)
goto fail;
if (grub_le_to_cpu32 (data->sblock.magic) == GRUB_UFS_MAGIC)
{
data->ufs_type = UFS1;
break;
}
else if (grub_le_to_cpu32 (data->sblock.magic) == GRUB_UFS2_MAGIC)
{
data->ufs_type = UFS2;
break;
}
sblklist++;
}
if (data->ufs_type == UNKNOWN)
{
grub_error (GRUB_ERR_BAD_FS, "not an ufs filesystem");
goto fail;
}
data->disk = disk;
data->linknest = 0;
return data;
fail:
grub_free (data);
return 0;
}
static grub_err_t
grub_ufs_dir (grub_device_t device, const char *path,
int (*hook) (const char *filename, int dir))
{
struct grub_ufs_data *data;
struct grub_ufs_sblock *sblock;
unsigned int pos = 0;
data = grub_ufs_mount (device->disk);
if (!data)
return grub_errno;
grub_ufs_read_inode (data, GRUB_UFS_INODE);
if (grub_errno)
return grub_errno;
sblock = &data->sblock;
if (!path || path[0] != '/')
{
grub_error (GRUB_ERR_BAD_FILENAME, "bad filename");
return grub_errno;
}
grub_ufs_find_file (data, path);
if (grub_errno)
goto fail;
if (!(INODE_MODE (data) & GRUB_UFS_ATTR_DIR))
{
grub_error (GRUB_ERR_BAD_FILE_TYPE, "not a directory");
goto fail;
}
while (pos < INODE_SIZE (data))
{
struct grub_ufs_dirent dirent;
if (grub_ufs_read_file (data, 0, pos, sizeof (dirent),
(char *) &dirent) < 0)
break;
{
char filename[dirent.namelen + 1];
if (grub_ufs_read_file (data, 0, pos + sizeof (dirent),
dirent.namelen, filename) < 0)
break;
filename[dirent.namelen] = '\0';
if (hook (filename, dirent.filetype == GRUB_UFS_FILETYPE_DIR))
break;
}
pos += grub_le_to_cpu16 (dirent.direntlen);
}
fail:
grub_free (data);
return grub_errno;
}
/* Open a file named NAME and initialize FILE. */
static grub_err_t
grub_ufs_open (struct grub_file *file, const char *name)
{
struct grub_ufs_data *data;
data = grub_ufs_mount (file->device->disk);
if (!data)
return grub_errno;
grub_ufs_read_inode (data, 2);
if (grub_errno)
{
grub_free (data);
return grub_errno;
}
if (!name || name[0] != '/')
{
grub_error (GRUB_ERR_BAD_FILENAME, "bad filename");
return grub_errno;
}
grub_ufs_find_file (data, name);
if (grub_errno)
{
grub_free (data);
return grub_errno;
}
file->data = data;
file->size = INODE_SIZE (data);
return GRUB_ERR_NONE;
}
static grub_ssize_t
grub_ufs_read (grub_file_t file, char *buf, grub_ssize_t len)
{
struct grub_ufs_data *data =
(struct grub_ufs_data *) file->data;
return grub_ufs_read_file (data, file->read_hook, file->offset, len, buf);
}
static grub_err_t
grub_ufs_close (grub_file_t file)
{
grub_free (file->data);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_ufs_label (grub_device_t device __attribute ((unused)),
char **label __attribute ((unused)))
{
return GRUB_ERR_NONE;
}
static struct grub_fs grub_ufs_fs =
{
.name = "ufs",
.dir = grub_ufs_dir,
.open = grub_ufs_open,
.read = grub_ufs_read,
.close = grub_ufs_close,
.label = grub_ufs_label,
.next = 0
};
#ifdef GRUB_UTIL
void
grub_ufs_init (void)
{
grub_fs_register (&grub_ufs_fs);
}
void
grub_ufs_fini (void)
{
grub_fs_unregister (&grub_ufs_fs);
}
#else /* ! GRUB_UTIL */
GRUB_MOD_INIT
{
grub_fs_register (&grub_ufs_fs);
my_mod = mod;
}
GRUB_MOD_FINI
{
grub_fs_unregister (&grub_ufs_fs);
}
#endif /* ! GRUB_UTIL */

6
include/grub/fs.h
View file

@ -1,7 +1,7 @@
/* fs.h - filesystem manager */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2003 Free Software Foundation, Inc.
* Copyright (C) 2002,2003,2004 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
@ -70,6 +70,10 @@ void grub_fat_init (void);
void grub_fat_fini (void);
void grub_ext2_init (void);
void grub_ext2_fini (void);
void grub_ufs_init (void);
void grub_ufs_fini (void);
void grub_minix_init (void);
void grub_minix_fini (void);
#endif /* GRUB_UTIL */
#endif /* ! GRUB_FS_HEADER */

4
util/grub-emu.c
View file

@ -158,6 +158,8 @@ main (int argc, char *argv[])
/* Initialize the default modules. */
grub_fat_init ();
grub_ext2_init ();
grub_ufs_init ();
grub_minix_init ();
grub_ls_init ();
grub_boot_init ();
grub_cmp_init ();
@ -172,7 +174,9 @@ main (int argc, char *argv[])
grub_util_biosdisk_fini ();
grub_normal_fini ();
grub_ufs_fini ();
grub_ext2_fini ();
grub_minix_fini ();
grub_fat_fini ();
grub_boot_fini ();
grub_cmp_fini ();