mirror of
https://git.savannah.gnu.org/git/grub.git
synced 2026-10-22 07:12:39 +00:00
2004-05-14 Yoshinori K. Okuji <okuji@enbug.org>
From Sergey Matveychuk <sem@ciam.ru>: * stage2/size_test: Added a check for ufs2_stage1_5. * stage2/shared.h (STAGE2_ID_UFS2_STAGE1_5): New macro. [FSYS_UFS2] (STAGE2_ID): Set to STAGE2_ID_UFS2_STAGE1_5. * stage2/filesys.h (FSYS_UFS2_NUM): New macro. [FSYS_UFS2] (ufs2_mount): New prototype. [FSYS_UFS2] (ufs2_read): Likewise. [FSYS_UFS2] (ufs2_dir): Likewise. [FSYS_UFS2] (ufs2_embed): Likewise. (NUM_FSYS): Added FSYS_UFS2_NUM. * stage2/disk_io.c (fsys_table): Added an ufs2 entry. * stage2/builtins.c (setup_func): Added ufs2 into the STAGE1_5_MAP. * stage2/Makefile.am (libgrub_a_SOURCES): Added fsys_ufs2.c. (libgrub_a_CFLAGS): Added -DFSYS_UFS2=1. (pkgdata_DATA): Added ufs2_stage1_5. (noinst_PROGRAMS): Added ufs2_stage1_5.exec. (ufs2_stage1_5_exec_SOURCES): New variable. (ufs2_stage1_5_exec_CFLAGS): Likewise. (ufs2_stage1_5_exec_CCASFLAGS): Likewise. (ufs2_stage1_5_exec_LDFLAGS): Likewise. * grub/Makefile.am (AM_CPPFLAGS): Added -DFSYS_ISO9660=1, -DFSYS_JFS=1, -DFSYS_REISERFS=1, -DFSYS_UFS2=1, -DFSYS_VSTAFS=1, -DFSYS_XFS=1, and -DUSE_MD5_PASSWORDS=1. * configure.ac (--disable-ufs2): New option. * stage2/fsys_ufs2.c: New file. * stage2/ufs2.h: Likewise.
This commit is contained in:
1 parent
7b676b85ea
commit
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28 files changed
+5044
-3284
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+24
-11
@@ -17,13 +17,15 @@ INCLUDES = -I$(top_srcdir)/stage1
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noinst_LIBRARIES = libgrub.a
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libgrub_a_SOURCES = boot.c builtins.c char_io.c cmdline.c common.c \
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disk_io.c fsys_ext2fs.c fsys_fat.c fsys_ffs.c fsys_iso9660.c \
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fsys_jfs.c fsys_minix.c fsys_reiserfs.c fsys_vstafs.c \
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fsys_xfs.c gunzip.c md5.c serial.c stage2.c terminfo.c tparm.c
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fsys_jfs.c fsys_minix.c fsys_reiserfs.c fsys_ufs2.c \
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fsys_vstafs.c fsys_xfs.c gunzip.c md5.c serial.c stage2.c \
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terminfo.c tparm.c
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libgrub_a_CFLAGS = $(GRUB_CFLAGS) -I$(top_srcdir)/lib \
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-DGRUB_UTIL=1 -DFSYS_EXT2FS=1 -DFSYS_FAT=1 -DFSYS_FFS=1 \
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-DFSYS_ISO9660=1 -DFSYS_JFS=1 -DFSYS_MINIX=1 -DFSYS_REISERFS=1 \
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-DFSYS_VSTAFS=1 -DFSYS_XFS=1 -DUSE_MD5_PASSWORDS=1 \
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-DSUPPORT_SERIAL=1 -DSUPPORT_HERCULES=1 -fwritable-strings
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-DFSYS_UFS2=1 -DFSYS_VSTAFS=1 -DFSYS_XFS=1 \
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-DUSE_MD5_PASSWORDS=1 -DSUPPORT_SERIAL=1 -DSUPPORT_HERCULES=1 \
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-fwritable-strings
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# Stage 2 and Stage 1.5's.
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pkgdatadir = $(datadir)/$(PACKAGE)/$(host_cpu)-$(host_vendor)
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@@ -33,22 +35,24 @@ EXTRA_PROGRAMS = nbloader.exec pxeloader.exec diskless.exec
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if DISKLESS_SUPPORT
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pkgdata_DATA = stage2 stage2_eltorito e2fs_stage1_5 fat_stage1_5 \
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ffs_stage1_5 iso9660_stage1_5 jfs_stage1_5 minix_stage1_5 \
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reiserfs_stage1_5 vstafs_stage1_5 xfs_stage1_5 nbgrub pxegrub
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reiserfs_stage1_5 ufs2_stage1_5 vstafs_stage1_5 xfs_stage1_5 \
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nbgrub pxegrub
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noinst_DATA = pre_stage2 start start_eltorito nbloader pxeloader diskless
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noinst_PROGRAMS = pre_stage2.exec start.exec start_eltorito.exec \
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e2fs_stage1_5.exec fat_stage1_5.exec ffs_stage1_5.exec \
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iso9660_stage1_5.exec jfs_stage1_5.exec minix_stage1_5.exec \
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reiserfs_stage1_5.exec vstafs_stage1_5.exec xfs_stage1_5.exec \
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nbloader.exec pxeloader.exec diskless.exec
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reiserfs_stage1_5.exec ufs2_stage1_5.exec vstafs_stage1_5.exec \
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xfs_stage1_5.exec nbloader.exec pxeloader.exec diskless.exec
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else
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pkgdata_DATA = stage2 stage2_eltorito e2fs_stage1_5 fat_stage1_5 \
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ffs_stage1_5 iso9660_stage1_5 jfs_stage1_5 minix_stage1_5 \
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reiserfs_stage1_5 vstafs_stage1_5 xfs_stage1_5
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reiserfs_stage1_5 ufs2_stage1_5 vstafs_stage1_5 xfs_stage1_5
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noinst_DATA = pre_stage2 start start_eltorito
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noinst_PROGRAMS = pre_stage2.exec start.exec start_eltorito.exec \
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e2fs_stage1_5.exec fat_stage1_5.exec ffs_stage1_5.exec \
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iso9660_stage1_5.exec jfs_stage1_5.exec minix_stage1_5.exec \
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reiserfs_stage1_5.exec vstafs_stage1_5.exec xfs_stage1_5.exec
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reiserfs_stage1_5.exec ufs2_stage1_5.exec vstafs_stage1_5.exec \
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xfs_stage1_5.exec
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endif
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MOSTLYCLEANFILES = $(noinst_PROGRAMS)
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@@ -86,8 +90,8 @@ STAGE1_5_COMPILE = $(STAGE2_COMPILE) -DNO_DECOMPRESSION=1 -DSTAGE1_5=1
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pre_stage2_exec_SOURCES = asm.S bios.c boot.c builtins.c char_io.c \
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cmdline.c common.c console.c disk_io.c fsys_ext2fs.c \
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fsys_fat.c fsys_ffs.c fsys_iso9660.c fsys_jfs.c fsys_minix.c \
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fsys_reiserfs.c fsys_vstafs.c fsys_xfs.c gunzip.c hercules.c \
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md5.c serial.c smp-imps.c stage2.c terminfo.c tparm.c
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fsys_reiserfs.c fsys_ufs2.c fsys_vstafs.c fsys_xfs.c gunzip.c \
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hercules.c md5.c serial.c smp-imps.c stage2.c terminfo.c tparm.c
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pre_stage2_exec_CFLAGS = $(STAGE2_COMPILE) $(FSYS_CFLAGS)
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pre_stage2_exec_CCASFLAGS = $(STAGE2_COMPILE) $(FSYS_CFLAGS)
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pre_stage2_exec_LDFLAGS = $(PRE_STAGE2_LINK)
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@@ -160,6 +164,15 @@ ffs_stage1_5_exec_CCASFLAGS = $(STAGE1_5_COMPILE) -DFSYS_FFS=1 \
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-DNO_BLOCK_FILES=1
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ffs_stage1_5_exec_LDFLAGS = $(STAGE1_5_LINK)
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# For ufs2_stage1_5 target.
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ufs2_stage1_5_exec_SOURCES = start.S asm.S common.c char_io.c disk_io.c \
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stage1_5.c fsys_ufs2.c bios.c
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ufs2_stage1_5_exec_CFLAGS = $(STAGE1_5_COMPILE) -DFSYS_UFS2=1 \
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-DNO_BLOCK_FILES=1
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ufs2_stage1_5_exec_CCASFLAGS = $(STAGE1_5_COMPILE) -DFSYS_UFS2=1 \
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-DNO_BLOCK_FILES=1
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ufs2_stage1_5_exec_LDFLAGS = $(STAGE1_5_LINK)
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# For minix_stage1_5 target.
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minix_stage1_5_exec_SOURCES = start.S asm.S common.c char_io.c disk_io.c \
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stage1_5.c fsys_minix.c bios.c
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+1989
-968
File diff suppressed because it is too large.
Load diff
@@ -3747,6 +3747,7 @@ setup_func (char *arg, int flags)
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{
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{"ext2fs", "/e2fs_stage1_5"},
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{"fat", "/fat_stage1_5"},
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{"ufs2", "/ufs2_stage1_5"},
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{"ffs", "/ffs_stage1_5"},
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{"iso9660", "/iso9660_stage1_5"},
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{"jfs", "/jfs_stage1_5"},
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+6
-3
@@ -72,9 +72,12 @@ struct fsys_entry fsys_table[NUM_FSYS + 1] =
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# ifdef FSYS_XFS
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{"xfs", xfs_mount, xfs_read, xfs_dir, 0, 0},
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# endif
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#ifdef FSYS_ISO9660
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{ "iso9660", iso9660_mount, iso9660_read, iso9660_dir, 0, 0},
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#endif
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# ifdef FSYS_UFS2
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{"ufs2", ufs2_mount, ufs2_read, ufs2_dir, 0, ufs2_embed},
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# endif
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# ifdef FSYS_ISO9660
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{"iso9660", iso9660_mount, iso9660_read, iso9660_dir, 0, 0},
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# endif
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/* XX FFS should come last as it's superblock is commonly crossing tracks
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on floppies from track 1 to 2, while others only use 1. */
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# ifdef FSYS_FFS
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+11
-1
@@ -30,6 +30,16 @@ int ffs_embed (int *start_sector, int needed_sectors);
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#define FSYS_FFS_NUM 0
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#endif
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#ifdef FSYS_UFS2
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#define FSYS_UFS2_NUM 1
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int ufs2_mount (void);
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int ufs2_read (char *buf, int len);
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int ufs2_dir (char *dirname);
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int ufs2_embed (int *start_sector, int needed_sectors);
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#else
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#define FSYS_UFS2_NUM 0
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#endif
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#ifdef FSYS_FAT
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#define FSYS_FAT_NUM 1
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int fat_mount (void);
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@@ -118,7 +128,7 @@ int iso9660_dir (char *dirname);
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#define NUM_FSYS \
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(FSYS_FFS_NUM + FSYS_FAT_NUM + FSYS_EXT2FS_NUM + FSYS_MINIX_NUM \
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+ FSYS_REISERFS_NUM + FSYS_VSTAFS_NUM + FSYS_JFS_NUM + FSYS_XFS_NUM \
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+ FSYS_TFTP_NUM + FSYS_ISO9660_NUM)
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+ FSYS_TFTP_NUM + FSYS_ISO9660_NUM + FSYS_UFS2_NUM)
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#endif
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/* defines for the block filesystem info area */
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@@ -0,0 +1,331 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
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* Copyright (c) 2004 Valery Hromov
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* Elements of this file were originally from the FreeBSD "biosboot"
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* bootloader file "disk.c" dated 4/12/95.
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*
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* The license and header comments from that file are included here.
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*/
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/*
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* Mach Operating System
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* Copyright (c) 1992, 1991 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
|
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*
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* from: Mach, Revision 2.2 92/04/04 11:35:49 rpd
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* $Id$
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*/
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#ifdef FSYS_UFS2
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#include "shared.h"
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#include "filesys.h"
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#include "ufs2.h"
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/* used for filesystem map blocks */
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static int mapblock;
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static int mapblock_offset;
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static int mapblock_bsize;
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static int sblock_try[] = SBLOCKSEARCH;
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static ufs2_daddr_t sblockloc;
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static int type;
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/* pointer to superblock */
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#define SUPERBLOCK ((struct fs *) ( FSYS_BUF + 8192 ))
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#define INODE_UFS2 ((struct ufs2_dinode *) ( FSYS_BUF + 16384 ))
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#define MAPBUF ( FSYS_BUF + 24576 )
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#define MAPBUF_LEN 8192
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int
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ufs2_mount (void)
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{
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int retval = 0;
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int i;
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sblockloc = -1;
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type = 0;
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if (! (((current_drive & 0x80) || (current_slice != 0))
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&& ! IS_PC_SLICE_TYPE_BSD_WITH_FS (current_slice, FS_BSDFFS)))
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{
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for (i = 0; sblock_try[i] != -1; ++i)
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{
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if (! (part_length < (sblock_try[i] + (SBLOCKSIZE / DEV_BSIZE))
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|| ! devread (0, sblock_try[i], SBLOCKSIZE, (char *) SUPERBLOCK)))
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{
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if (SUPERBLOCK->fs_magic == FS_UFS2_MAGIC /* &&
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(SUPERBLOCK->fs_sblockloc == sblockloc ||
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(SUPERBLOCK->fs_old_flags & FS_FLAGS_UPDATED) == 0)*/)
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{
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type = 2;
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}
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else
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{
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continue;
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}
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retval = 1;
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sblockloc = sblock_try[i];
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break;
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}
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}
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}
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mapblock = -1;
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mapblock_offset = -1;
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return retval;
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}
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static int64_t
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block_map (int file_block)
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{
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int bnum, offset, bsize;
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if (file_block < NDADDR)
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return (INODE_UFS2->di_db[file_block]);
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/* If the blockmap loaded does not include FILE_BLOCK,
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load a new blockmap. */
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if ((bnum = fsbtodb (SUPERBLOCK, INODE_UFS2->di_ib[0])) != mapblock
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|| (mapblock_offset <= bnum && bnum <= mapblock_offset + mapblock_bsize))
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{
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if (MAPBUF_LEN < SUPERBLOCK->fs_bsize)
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{
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offset = ((file_block - NDADDR) % NINDIR (SUPERBLOCK));
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bsize = MAPBUF_LEN;
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if (offset + MAPBUF_LEN > SUPERBLOCK->fs_bsize)
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offset = (SUPERBLOCK->fs_bsize - MAPBUF_LEN) / sizeof (int);
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}
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else
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{
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bsize = SUPERBLOCK->fs_bsize;
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offset = 0;
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}
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if (! devread (bnum, offset * sizeof (int), bsize, (char *) MAPBUF))
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{
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mapblock = -1;
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mapblock_bsize = -1;
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mapblock_offset = -1;
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errnum = ERR_FSYS_CORRUPT;
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return -1;
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}
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mapblock = bnum;
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mapblock_bsize = bsize;
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mapblock_offset = offset;
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}
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return (((int64_t *) MAPBUF)[((file_block - NDADDR) % NINDIR (SUPERBLOCK))
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- mapblock_offset]);
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}
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int
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ufs2_read (char *buf, int len)
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{
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int logno, off, size, ret = 0;
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int64_t map;
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while (len && !errnum)
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{
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off = blkoff (SUPERBLOCK, filepos);
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logno = lblkno (SUPERBLOCK, filepos);
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size = blksize (SUPERBLOCK, INODE_UFS2, logno);
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if ((map = block_map (logno)) < 0)
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break;
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size -= off;
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if (size > len)
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size = len;
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disk_read_func = disk_read_hook;
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devread (fsbtodb (SUPERBLOCK, map), off, size, buf);
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disk_read_func = NULL;
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buf += size;
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len -= size;
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filepos += size;
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ret += size;
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}
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if (errnum)
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ret = 0;
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return ret;
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}
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int
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ufs2_dir (char *dirname)
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{
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char *rest, ch;
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int block, off, loc, ino = ROOTINO;
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int64_t map;
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struct direct *dp;
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/* main loop to find destination inode */
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loop:
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/* load current inode (defaults to the root inode) */
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if (!devread (fsbtodb (SUPERBLOCK, ino_to_fsba (SUPERBLOCK, ino)),
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ino % (SUPERBLOCK->fs_inopb) * sizeof (struct ufs2_dinode),
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sizeof (struct ufs2_dinode), (char *) INODE_UFS2))
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return 0; /* XXX what return value? */
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/* if we have a real file (and we're not just printing possibilities),
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then this is where we want to exit */
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if (!*dirname || isspace (*dirname))
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{
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if ((INODE_UFS2->di_mode & IFMT) != IFREG)
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{
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errnum = ERR_BAD_FILETYPE;
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return 0;
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}
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filemax = INODE_UFS2->di_size;
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||||
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||||
/* incomplete implementation requires this! */
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fsmax = (NDADDR + NINDIR (SUPERBLOCK)) * SUPERBLOCK->fs_bsize;
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return 1;
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}
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||||
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/* continue with file/directory name interpretation */
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while (*dirname == '/')
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dirname++;
|
||||
|
||||
if (!(INODE_UFS2->di_size) || ((INODE_UFS2->di_mode & IFMT) != IFDIR))
|
||||
{
|
||||
errnum = ERR_BAD_FILETYPE;
|
||||
return 0;
|
||||
}
|
||||
|
||||
for (rest = dirname; (ch = *rest) && !isspace (ch) && ch != '/'; rest++);
|
||||
|
||||
*rest = 0;
|
||||
loc = 0;
|
||||
|
||||
/* loop for reading a the entries in a directory */
|
||||
|
||||
do
|
||||
{
|
||||
if (loc >= INODE_UFS2->di_size)
|
||||
{
|
||||
if (print_possibilities < 0)
|
||||
return 1;
|
||||
|
||||
errnum = ERR_FILE_NOT_FOUND;
|
||||
*rest = ch;
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!(off = blkoff (SUPERBLOCK, loc)))
|
||||
{
|
||||
block = lblkno (SUPERBLOCK, loc);
|
||||
|
||||
if ((map = block_map (block)) < 0
|
||||
|| !devread (fsbtodb (SUPERBLOCK, map), 0,
|
||||
blksize (SUPERBLOCK, INODE_UFS2, block),
|
||||
(char *) FSYS_BUF))
|
||||
{
|
||||
errnum = ERR_FSYS_CORRUPT;
|
||||
*rest = ch;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
dp = (struct direct *) (FSYS_BUF + off);
|
||||
loc += dp->d_reclen;
|
||||
|
||||
#ifndef STAGE1_5
|
||||
if (dp->d_ino && print_possibilities && ch != '/'
|
||||
&& (!*dirname || substring (dirname, dp->d_name) <= 0))
|
||||
{
|
||||
if (print_possibilities > 0)
|
||||
print_possibilities = -print_possibilities;
|
||||
|
||||
print_a_completion (dp->d_name);
|
||||
}
|
||||
#endif /* STAGE1_5 */
|
||||
}
|
||||
while (!dp->d_ino || (substring (dirname, dp->d_name) != 0
|
||||
|| (print_possibilities && ch != '/')));
|
||||
|
||||
/* only get here if we have a matching directory entry */
|
||||
|
||||
ino = dp->d_ino;
|
||||
*(dirname = rest) = ch;
|
||||
|
||||
/* go back to main loop at top of function */
|
||||
goto loop;
|
||||
}
|
||||
|
||||
int
|
||||
ufs2_embed (int *start_sector, int needed_sectors)
|
||||
{
|
||||
/* XXX: I don't know if this is really correct. Someone who is
|
||||
familiar with BSD should check for this. */
|
||||
if (needed_sectors > 14)
|
||||
return 0;
|
||||
|
||||
*start_sector = 1;
|
||||
#if 1
|
||||
/* FIXME: Disable the embedding in FFS until someone checks if
|
||||
the code above is correct. */
|
||||
return 0;
|
||||
#else
|
||||
return 1;
|
||||
#endif
|
||||
}
|
||||
|
||||
#endif /* FSYS_UFS2 */
|
||||
@@ -207,6 +207,7 @@ extern char *grub_scratch_mem;
|
||||
#define STAGE2_ID_JFS_STAGE1_5 7
|
||||
#define STAGE2_ID_XFS_STAGE1_5 8
|
||||
#define STAGE2_ID_ISO9660_STAGE1_5 9
|
||||
#define STAGE2_ID_UFS2_STAGE1_5 10
|
||||
|
||||
#ifndef STAGE1_5
|
||||
# define STAGE2_ID STAGE2_ID_STAGE2
|
||||
@@ -229,6 +230,8 @@ extern char *grub_scratch_mem;
|
||||
# define STAGE2_ID STAGE2_ID_XFS_STAGE1_5
|
||||
# elif defined(FSYS_ISO9660)
|
||||
# define STAGE2_ID STAGE2_ID_ISO9660_STAGE1_5
|
||||
# elif defined(FSYS_UFS2)
|
||||
# define STAGE2_ID STAGE2_ID_UFS2_STAGE1_5
|
||||
# else
|
||||
# error "unknown Stage 2"
|
||||
# endif
|
||||
|
||||
@@ -38,6 +38,8 @@ check ()
|
||||
# The bootloader area of a FFS partition is 14 sectors.
|
||||
check ffs_stage1_5 7168
|
||||
|
||||
check ufs2_stage1_5 7168
|
||||
|
||||
# Stage 1.5 can be installed in the sectors immediately after MBR in the
|
||||
# first cylinder, so the size is (63 - 1) sectors.
|
||||
check fat_stage1_5 31744
|
||||
|
||||
+449
@@ -0,0 +1,449 @@
|
||||
/*
|
||||
* Copyright (c) 2002 Networks Associates Technology, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software was developed for the FreeBSD Project by Marshall
|
||||
* Kirk McKusick and Network Associates Laboratories, the Security
|
||||
* Research Division of Network Associates, Inc. under DARPA/SPAWAR
|
||||
* contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
|
||||
* research program
|
||||
*
|
||||
* Copyright (c) 1982, 1989, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
* (c) UNIX System Laboratories, Inc.
|
||||
* All or some portions of this file are derived from material licensed
|
||||
* to the University of California by American Telephone and Telegraph
|
||||
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
|
||||
* the permission of UNIX System Laboratories, Inc.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The names of the authors may not be used to endorse or promote
|
||||
* products derived from this software without specific prior written
|
||||
* permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)dinode.h 8.3 (Berkeley) 1/21/94
|
||||
* $FreeBSD: src/sys/ufs/ufs/dinode.h,v 1.11 2002/07/16 22:36:00 mckusick Exp $
|
||||
*/
|
||||
|
||||
#ifndef _GRUB_UFS2_H_
|
||||
#define _GRUB_UFS2_H_
|
||||
|
||||
typedef signed char int8_t;
|
||||
typedef signed short int16_t;
|
||||
typedef signed int int32_t;
|
||||
typedef signed long long int int64_t;
|
||||
typedef unsigned char uint8_t;
|
||||
typedef unsigned short uint16_t;
|
||||
typedef unsigned int uint32_t;
|
||||
typedef unsigned long long int uint64_t;
|
||||
|
||||
typedef uint8_t u_char;
|
||||
typedef uint32_t u_int;
|
||||
|
||||
typedef uint8_t u_int8_t;
|
||||
typedef uint16_t u_int16_t;
|
||||
typedef uint32_t u_int32_t;
|
||||
typedef uint64_t u_int64_t;
|
||||
|
||||
/*
|
||||
* __uint* constants already defined in
|
||||
* FreeBSD's /usr/include/machine/_types.h
|
||||
*/
|
||||
#ifndef _MACHINE__TYPES_H_
|
||||
typedef uint8_t __uint8_t;
|
||||
typedef uint16_t __uint16_t;
|
||||
typedef uint32_t __uint32_t;
|
||||
typedef uint64_t __uint64_t;
|
||||
#endif /* _MACHINE__TYPES_H_ */
|
||||
|
||||
#define i_size di_size
|
||||
|
||||
|
||||
#define DEV_BSIZE 512
|
||||
|
||||
/*
|
||||
* The root inode is the root of the filesystem. Inode 0 can't be used for
|
||||
* normal purposes and historically bad blocks were linked to inode 1, thus
|
||||
* the root inode is 2. (Inode 1 is no longer used for this purpose, however
|
||||
* numerous dump tapes make this assumption, so we are stuck with it).
|
||||
*/
|
||||
#define ROOTINO ((ino_t)2)
|
||||
|
||||
/*
|
||||
* The size of physical and logical block numbers and time fields in UFS.
|
||||
*/
|
||||
typedef int32_t ufs1_daddr_t;
|
||||
typedef int64_t ufs2_daddr_t;
|
||||
typedef int64_t ufs_lbn_t;
|
||||
typedef int64_t ufs_time_t;
|
||||
|
||||
/* inode number */
|
||||
typedef __uint32_t ino_t;
|
||||
|
||||
/* File permissions. */
|
||||
#define IEXEC 0000100 /* Executable. */
|
||||
#define IWRITE 0000200 /* Writeable. */
|
||||
#define IREAD 0000400 /* Readable. */
|
||||
#define ISVTX 0001000 /* Sticky bit. */
|
||||
#define ISGID 0002000 /* Set-gid. */
|
||||
#define ISUID 0004000 /* Set-uid. */
|
||||
|
||||
/* File types. */
|
||||
#define IFMT 0170000 /* Mask of file type. */
|
||||
#define IFIFO 0010000 /* Named pipe (fifo). */
|
||||
#define IFCHR 0020000 /* Character device. */
|
||||
#define IFDIR 0040000 /* Directory file. */
|
||||
#define IFBLK 0060000 /* Block device. */
|
||||
#define IFREG 0100000 /* Regular file. */
|
||||
#define IFLNK 0120000 /* Symbolic link. */
|
||||
#define IFSOCK 0140000 /* UNIX domain socket. */
|
||||
#define IFWHT 0160000 /* Whiteout. */
|
||||
|
||||
/*
|
||||
* A dinode contains all the meta-data associated with a UFS2 file.
|
||||
* This structure defines the on-disk format of a dinode. Since
|
||||
* this structure describes an on-disk structure, all its fields
|
||||
* are defined by types with precise widths.
|
||||
*/
|
||||
|
||||
#define NXADDR 2 /* External addresses in inode. */
|
||||
#define NDADDR 12 /* Direct addresses in inode. */
|
||||
#define NIADDR 3 /* Indirect addresses in inode. */
|
||||
|
||||
struct ufs1_dinode {
|
||||
u_int16_t di_mode; /* 0: IFMT, permissions; see below. */
|
||||
int16_t di_nlink; /* 2: File link count. */
|
||||
union {
|
||||
u_int16_t oldids[2]; /* 4: Ffs: old user and group ids. */
|
||||
} di_u;
|
||||
u_int64_t di_size; /* 8: File byte count. */
|
||||
int32_t di_atime; /* 16: Last access time. */
|
||||
int32_t di_atimensec; /* 20: Last access time. */
|
||||
int32_t di_mtime; /* 24: Last modified time. */
|
||||
int32_t di_mtimensec; /* 28: Last modified time. */
|
||||
int32_t di_ctime; /* 32: Last inode change time. */
|
||||
int32_t di_ctimensec; /* 36: Last inode change time. */
|
||||
ufs1_daddr_t di_db[NDADDR]; /* 40: Direct disk blocks. */
|
||||
ufs1_daddr_t di_ib[NIADDR]; /* 88: Indirect disk blocks. */
|
||||
u_int32_t di_flags; /* 100: Status flags (chflags). */
|
||||
int32_t di_blocks; /* 104: Blocks actually held. */
|
||||
int32_t di_gen; /* 108: Generation number. */
|
||||
u_int32_t di_uid; /* 112: File owner. */
|
||||
u_int32_t di_gid; /* 116: File group. */
|
||||
int32_t di_spare[2]; /* 120: Reserved; currently unused */
|
||||
};
|
||||
|
||||
struct ufs2_dinode {
|
||||
u_int16_t di_mode; /* 0: IFMT, permissions; see below. */
|
||||
int16_t di_nlink; /* 2: File link count. */
|
||||
u_int32_t di_uid; /* 4: File owner. */
|
||||
u_int32_t di_gid; /* 8: File group. */
|
||||
u_int32_t di_blksize; /* 12: Inode blocksize. */
|
||||
u_int64_t di_size; /* 16: File byte count. */
|
||||
u_int64_t di_blocks; /* 24: Bytes actually held. */
|
||||
ufs_time_t di_atime; /* 32: Last access time. */
|
||||
ufs_time_t di_mtime; /* 40: Last modified time. */
|
||||
ufs_time_t di_ctime; /* 48: Last inode change time. */
|
||||
ufs_time_t di_birthtime; /* 56: Inode creation time. */
|
||||
int32_t di_mtimensec; /* 64: Last modified time. */
|
||||
int32_t di_atimensec; /* 68: Last access time. */
|
||||
int32_t di_ctimensec; /* 72: Last inode change time. */
|
||||
int32_t di_birthnsec; /* 76: Inode creation time. */
|
||||
int32_t di_gen; /* 80: Generation number. */
|
||||
u_int32_t di_kernflags; /* 84: Kernel flags. */
|
||||
u_int32_t di_flags; /* 88: Status flags (chflags). */
|
||||
int32_t di_extsize; /* 92: External attributes block. */
|
||||
ufs2_daddr_t di_extb[NXADDR];/* 96: External attributes block. */
|
||||
ufs2_daddr_t di_db[NDADDR]; /* 112: Direct disk blocks. */
|
||||
ufs2_daddr_t di_ib[NIADDR]; /* 208: Indirect disk blocks. */
|
||||
int64_t di_spare[3]; /* 232: Reserved; currently unused */
|
||||
};
|
||||
|
||||
#define MAXNAMLEN 255
|
||||
|
||||
struct direct {
|
||||
u_int32_t d_ino; /* inode number of entry */
|
||||
u_int16_t d_reclen; /* length of this record */
|
||||
u_int8_t d_type; /* file type, see below */
|
||||
u_int8_t d_namlen; /* length of string in d_name */
|
||||
char d_name[MAXNAMLEN + 1];/* name with length <= MAXNAMLEN */
|
||||
};
|
||||
|
||||
/*
|
||||
* File types
|
||||
*/
|
||||
#define DT_UNKNOWN 0
|
||||
#define DT_FIFO 1
|
||||
#define DT_CHR 2
|
||||
#define DT_DIR 4
|
||||
#define DT_BLK 6
|
||||
#define DT_REG 8
|
||||
#define DT_LNK 10
|
||||
#define DT_SOCK 12
|
||||
#define DT_WHT 14
|
||||
|
||||
/*
|
||||
* Superblock offsets
|
||||
*/
|
||||
#define SBLOCK_FLOPPY 0
|
||||
#define SBLOCK_UFS1 8192
|
||||
#define SBLOCK_UFS2 65536
|
||||
#define SBLOCK_PIGGY 262144
|
||||
#define SBLOCKSIZE 8192
|
||||
#define SBLOCKSEARCH \
|
||||
{ SBLOCK_UFS2, SBLOCK_UFS1, SBLOCK_FLOPPY, SBLOCK_PIGGY, -1 }
|
||||
|
||||
#define MAXMNTLEN 512
|
||||
|
||||
#define NOCSPTRS ((128 / sizeof(void *)) - 4)
|
||||
|
||||
/*
|
||||
* The maximum number of snapshot nodes that can be associated
|
||||
* with each filesystem. This limit affects only the number of
|
||||
* snapshot files that can be recorded within the superblock so
|
||||
* that they can be found when the filesystem is mounted. However,
|
||||
* maintaining too many will slow the filesystem performance, so
|
||||
* having this limit is a good idea.
|
||||
*/
|
||||
#define FSMAXSNAP 20
|
||||
|
||||
/*
|
||||
* Per cylinder group information; summarized in blocks allocated
|
||||
* from first cylinder group data blocks. These blocks have to be
|
||||
* read in from fs_csaddr (size fs_cssize) in addition to the
|
||||
* super block.
|
||||
*/
|
||||
struct csum {
|
||||
int32_t cs_ndir; /* number of directories */
|
||||
int32_t cs_nbfree; /* number of free blocks */
|
||||
int32_t cs_nifree; /* number of free inodes */
|
||||
int32_t cs_nffree; /* number of free frags */
|
||||
};
|
||||
|
||||
struct csum_total {
|
||||
int64_t cs_ndir; /* number of directories */
|
||||
int64_t cs_nbfree; /* number of free blocks */
|
||||
int64_t cs_nifree; /* number of free inodes */
|
||||
int64_t cs_nffree; /* number of free frags */
|
||||
int64_t cs_numclusters; /* number of free clusters */
|
||||
int64_t cs_spare[3]; /* future expansion */
|
||||
};
|
||||
|
||||
/*
|
||||
* Super block for an FFS filesystem.
|
||||
*/
|
||||
struct fs {
|
||||
int32_t fs_firstfield; /* historic filesystem linked list, */
|
||||
int32_t fs_unused_1; /* used for incore super blocks */
|
||||
int32_t fs_sblkno; /* offset of super-block in filesys */
|
||||
int32_t fs_cblkno; /* offset of cyl-block in filesys */
|
||||
int32_t fs_iblkno; /* offset of inode-blocks in filesys */
|
||||
int32_t fs_dblkno; /* offset of first data after cg */
|
||||
int32_t fs_old_cgoffset; /* cylinder group offset in cylinder */
|
||||
int32_t fs_old_cgmask; /* used to calc mod fs_ntrak */
|
||||
int32_t fs_old_time; /* last time written */
|
||||
int32_t fs_old_size; /* number of blocks in fs */
|
||||
int32_t fs_old_dsize; /* number of data blocks in fs */
|
||||
int32_t fs_ncg; /* number of cylinder groups */
|
||||
int32_t fs_bsize; /* size of basic blocks in fs */
|
||||
int32_t fs_fsize; /* size of frag blocks in fs */
|
||||
int32_t fs_frag; /* number of frags in a block in fs */
|
||||
/* these are configuration parameters */
|
||||
int32_t fs_minfree; /* minimum percentage of free blocks */
|
||||
int32_t fs_old_rotdelay; /* num of ms for optimal next block */
|
||||
int32_t fs_old_rps; /* disk revolutions per second */
|
||||
/* these fields can be computed from the others */
|
||||
int32_t fs_bmask; /* ``blkoff'' calc of blk offsets */
|
||||
int32_t fs_fmask; /* ``fragoff'' calc of frag offsets */
|
||||
int32_t fs_bshift; /* ``lblkno'' calc of logical blkno */
|
||||
int32_t fs_fshift; /* ``numfrags'' calc number of frags */
|
||||
/* these are configuration parameters */
|
||||
int32_t fs_maxcontig; /* max number of contiguous blks */
|
||||
int32_t fs_maxbpg; /* max number of blks per cyl group */
|
||||
/* these fields can be computed from the others */
|
||||
int32_t fs_fragshift; /* block to frag shift */
|
||||
int32_t fs_fsbtodb; /* fsbtodb and dbtofsb shift constant */
|
||||
int32_t fs_sbsize; /* actual size of super block */
|
||||
int32_t fs_spare1[2]; /* old fs_csmask */
|
||||
/* old fs_csshift */
|
||||
int32_t fs_nindir; /* value of NINDIR */
|
||||
int32_t fs_inopb; /* value of INOPB */
|
||||
int32_t fs_old_nspf; /* value of NSPF */
|
||||
/* yet another configuration parameter */
|
||||
int32_t fs_optim; /* optimization preference, see below */
|
||||
int32_t fs_old_npsect; /* # sectors/track including spares */
|
||||
int32_t fs_old_interleave; /* hardware sector interleave */
|
||||
int32_t fs_old_trackskew; /* sector 0 skew, per track */
|
||||
int32_t fs_id[2]; /* unique filesystem id */
|
||||
/* sizes determined by number of cylinder groups and their sizes */
|
||||
int32_t fs_old_csaddr; /* blk addr of cyl grp summary area */
|
||||
int32_t fs_cssize; /* size of cyl grp summary area */
|
||||
int32_t fs_cgsize; /* cylinder group size */
|
||||
int32_t fs_spare2; /* old fs_ntrak */
|
||||
int32_t fs_old_nsect; /* sectors per track */
|
||||
int32_t fs_old_spc; /* sectors per cylinder */
|
||||
int32_t fs_old_ncyl; /* cylinders in filesystem */
|
||||
int32_t fs_old_cpg; /* cylinders per group */
|
||||
int32_t fs_ipg; /* inodes per group */
|
||||
int32_t fs_fpg; /* blocks per group * fs_frag */
|
||||
/* this data must be re-computed after crashes */
|
||||
struct csum fs_old_cstotal; /* cylinder summary information */
|
||||
/* these fields are cleared at mount time */
|
||||
int8_t fs_fmod; /* super block modified flag */
|
||||
int8_t fs_clean; /* filesystem is clean flag */
|
||||
int8_t fs_ronly; /* mounted read-only flag */
|
||||
int8_t fs_old_flags; /* old FS_ flags */
|
||||
u_char fs_fsmnt[MAXMNTLEN]; /* name mounted on */
|
||||
/* these fields retain the current block allocation info */
|
||||
int32_t fs_cgrotor; /* last cg searched */
|
||||
void *fs_ocsp[NOCSPTRS]; /* padding; was list of fs_cs buffers */
|
||||
u_int8_t *fs_contigdirs; /* # of contiguously allocated dirs */
|
||||
struct csum *fs_csp; /* cg summary info buffer for fs_cs */
|
||||
int32_t *fs_maxcluster; /* max cluster in each cyl group */
|
||||
u_int *fs_active; /* used by snapshots to track fs */
|
||||
int32_t fs_old_cpc; /* cyl per cycle in postbl */
|
||||
int32_t fs_maxbsize; /* maximum blocking factor permitted */
|
||||
int64_t fs_sparecon64[17]; /* old rotation block list head */
|
||||
int64_t fs_sblockloc; /* byte offset of standard superblock */
|
||||
struct csum_total fs_cstotal; /* cylinder summary information */
|
||||
ufs_time_t fs_time; /* last time written */
|
||||
int64_t fs_size; /* number of blocks in fs */
|
||||
int64_t fs_dsize; /* number of data blocks in fs */
|
||||
ufs2_daddr_t fs_csaddr; /* blk addr of cyl grp summary area */
|
||||
int64_t fs_pendingblocks; /* blocks in process of being freed */
|
||||
int32_t fs_pendinginodes; /* inodes in process of being freed */
|
||||
int32_t fs_snapinum[FSMAXSNAP];/* list of snapshot inode numbers */
|
||||
int32_t fs_avgfilesize; /* expected average file size */
|
||||
int32_t fs_avgfpdir; /* expected # of files per directory */
|
||||
int32_t fs_save_cgsize; /* save real cg size to use fs_bsize */
|
||||
int32_t fs_sparecon32[26]; /* reserved for future constants */
|
||||
int32_t fs_flags; /* see FS_ flags below */
|
||||
int32_t fs_contigsumsize; /* size of cluster summary array */
|
||||
int32_t fs_maxsymlinklen; /* max length of an internal symlink */
|
||||
int32_t fs_old_inodefmt; /* format of on-disk inodes */
|
||||
u_int64_t fs_maxfilesize; /* maximum representable file size */
|
||||
int64_t fs_qbmask; /* ~fs_bmask for use with 64-bit size */
|
||||
int64_t fs_qfmask; /* ~fs_fmask for use with 64-bit size */
|
||||
int32_t fs_state; /* validate fs_clean field */
|
||||
int32_t fs_old_postblformat; /* format of positional layout tables */
|
||||
int32_t fs_old_nrpos; /* number of rotational positions */
|
||||
int32_t fs_spare5[2]; /* old fs_postbloff */
|
||||
/* old fs_rotbloff */
|
||||
int32_t fs_magic; /* magic number */
|
||||
};
|
||||
|
||||
/*
|
||||
* Filesystem identification
|
||||
*/
|
||||
#define FS_UFS1_MAGIC 0x011954 /* UFS1 fast filesystem magic number */
|
||||
#define FS_UFS2_MAGIC 0x19540119 /* UFS2 fast filesystem magic number */
|
||||
|
||||
/*
|
||||
* Turn filesystem block numbers into disk block addresses.
|
||||
* This maps filesystem blocks to device size blocks.
|
||||
*/
|
||||
#define fsbtodb(fs, b) ((b) << (fs)->fs_fsbtodb)
|
||||
#define dbtofsb(fs, b) ((b) >> (fs)->fs_fsbtodb)
|
||||
|
||||
/*
|
||||
* Cylinder group macros to locate things in cylinder groups.
|
||||
* They calc filesystem addresses of cylinder group data structures.
|
||||
*/
|
||||
#define cgbase(fs, c) ((ufs2_daddr_t)((fs)->fs_fpg * (c)))
|
||||
#define cgimin(fs, c) (cgstart(fs, c) + (fs)->fs_iblkno) /* inode blk */
|
||||
#define cgstart(fs, c) \
|
||||
((fs)->fs_magic == FS_UFS2_MAGIC ? cgbase(fs, c) : \
|
||||
(cgbase(fs, c) + (fs)->fs_old_cgoffset * ((c) & ~((fs)->fs_old_cgmask))))
|
||||
|
||||
/*
|
||||
* Macros for handling inode numbers:
|
||||
* inode number to filesystem block offset.
|
||||
* inode number to cylinder group number.
|
||||
* inode number to filesystem block address.
|
||||
*/
|
||||
#define ino_to_cg(fs, x) ((x) / (fs)->fs_ipg)
|
||||
#define ino_to_fsba(fs, x) \
|
||||
((ufs2_daddr_t)(cgimin(fs, ino_to_cg(fs, x)) + \
|
||||
(blkstofrags((fs), (((x) % (fs)->fs_ipg) / INOPB(fs))))))
|
||||
#define ino_to_fsbo(fs, x) ((x) % INOPB(fs))
|
||||
|
||||
/*
|
||||
* The following macros optimize certain frequently calculated
|
||||
* quantities by using shifts and masks in place of divisions
|
||||
* modulos and multiplications.
|
||||
*/
|
||||
#define blkoff(fs, loc) /* calculates (loc % fs->fs_bsize) */ \
|
||||
((loc) & (fs)->fs_qbmask)
|
||||
|
||||
/* Use this only when `blk' is known to be small, e.g., < NDADDR. */
|
||||
#define smalllblktosize(fs, blk) /* calculates (blk * fs->fs_bsize) */ \
|
||||
((blk) << (fs)->fs_bshift)
|
||||
|
||||
|
||||
#define lblkno(fs, loc) /* calculates (loc / fs->fs_bsize) */ \
|
||||
((loc) >> (fs)->fs_bshift)
|
||||
|
||||
#define fragroundup(fs, size) /* calculates roundup(size, fs->fs_fsize) */ \
|
||||
(((size) + (fs)->fs_qfmask) & (fs)->fs_fmask)
|
||||
|
||||
#define fragstoblks(fs, frags) /* calculates (frags / fs->fs_frag) */ \
|
||||
((frags) >> (fs)->fs_fragshift)
|
||||
#define blkstofrags(fs, blks) /* calculates (blks * fs->fs_frag) */ \
|
||||
((blks) << (fs)->fs_fragshift)
|
||||
#define fragnum(fs, fsb) /* calculates (fsb % fs->fs_frag) */ \
|
||||
((fsb) & ((fs)->fs_frag - 1))
|
||||
#define blknum(fs, fsb) /* calculates rounddown(fsb, fs->fs_frag) */ \
|
||||
((fsb) &~ ((fs)->fs_frag - 1))
|
||||
|
||||
/*
|
||||
* Determining the size of a file block in the filesystem.
|
||||
*/
|
||||
#define blksize(fs, ip, lbn) \
|
||||
(((lbn) >= NDADDR || (ip)->i_size >= smalllblktosize(fs, (lbn) + 1)) \
|
||||
? (fs)->fs_bsize \
|
||||
: (fragroundup(fs, blkoff(fs, (ip)->i_size))))
|
||||
#define sblksize(fs, size, lbn) \
|
||||
(((lbn) >= NDADDR || (size) >= ((lbn) + 1) << (fs)->fs_bshift) \
|
||||
? (fs)->fs_bsize \
|
||||
: (fragroundup(fs, blkoff(fs, (size)))))
|
||||
|
||||
|
||||
/*
|
||||
* Number of inodes in a secondary storage block/fragment.
|
||||
*/
|
||||
#define INOPB(fs) ((fs)->fs_inopb)
|
||||
#define INOPF(fs) ((fs)->fs_inopb >> (fs)->fs_fragshift)
|
||||
|
||||
/*
|
||||
* Number of indirects in a filesystem block.
|
||||
*/
|
||||
#define NINDIR(fs) ((fs)->fs_nindir)
|
||||
|
||||
#define FS_UNCLEAN 0x01 /* filesystem not clean at mount */
|
||||
#define FS_DOSOFTDEP 0x02 /* filesystem using soft dependencies */
|
||||
#define FS_NEEDSFSCK 0x04 /* filesystem needs sync fsck before mount */
|
||||
#define FS_INDEXDIRS 0x08 /* kernel supports indexed directories */
|
||||
#define FS_ACLS 0x10 /* file system has ACLs enabled */
|
||||
#define FS_MULTILABEL 0x20 /* file system is MAC multi-label */
|
||||
#define FS_FLAGS_UPDATED 0x80 /* flags have been moved to new location */
|
||||
|
||||
#endif /* _GRUB_UFS2_H_ */
|
||||
Reference in new issue
Block a user