| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20220803075407.538398-1-alexey.lyashkov@gmail.com>
Date: Wed, 3 Aug 2022 10:54:07 +0300
From: Alexey Lyashkov <alexey.lyashkov@...il.com>
To: linux-ext4@...r.kernel.org, Theodore Ts'o <tytso@....edu>,
Andreas Dilger <adilger@...ger.ca>,
Artem Blagodarenko <artem.blagodarenko@...il.com>
Cc: Alexey Lyashkov <alexey.lyashkov@...il.com>
Subject: [PATCH] e2fsprogs: avoid code duplication
debugfs and e2fsck have a so much code duplication in journal handing.
debugfs have lack a many journal features handing also.
Let's start code merging to avoid code duplication and lack features.
userspace buffer head emulation moved into library.
Signed-off-by: Alexey Lyashkov <alexey.lyashkov@...il.com>
---
debugfs/Makefile.in | 14 +-
debugfs/debugfs.c | 2 +-
debugfs/journal.c | 251 ---------------------------
debugfs/journal.h | 2 +-
debugfs/logdump.c | 2 +-
e2fsck/Makefile.in | 8 +-
e2fsck/e2fsck.c | 5 -
e2fsck/e2fsck.h | 1 -
e2fsck/journal.c | 278 ++----------------------------
e2fsck/logfile.c | 2 +-
e2fsck/recovery.c | 2 +-
e2fsck/revoke.c | 2 +-
e2fsck/unix.c | 4 +-
e2fsck/util.c | 2 +-
lib/ext2fs/Android.bp | 1 +
lib/ext2fs/Makefile.in | 23 +--
lib/ext2fs/jfs_user.c | 255 +++++++++++++++++++++++++++
{e2fsck => lib/ext2fs}/jfs_user.h | 55 +++---
misc/Makefile.in | 10 +-
19 files changed, 341 insertions(+), 578 deletions(-)
create mode 100644 lib/ext2fs/jfs_user.c
rename {e2fsck => lib/ext2fs}/jfs_user.h (89%)
diff --git a/debugfs/Makefile.in b/debugfs/Makefile.in
index ed4ea8d8..cc846cb1 100644
--- a/debugfs/Makefile.in
+++ b/debugfs/Makefile.in
@@ -49,7 +49,7 @@ STATIC_DEPLIBS= $(STATIC_LIBEXT2FS) $(DEPSTATIC_LIBSS) \
# This nastiness is needed because of jfs_user.h hackery; when we finally
# clean up this mess, we should be able to drop it
-LOCAL_CFLAGS = -I$(srcdir)/../e2fsck -DDEBUGFS
+LOCAL_CFLAGS = -DDEBUGFS
DEPEND_CFLAGS = -I$(srcdir)
.c.o:
@@ -186,7 +186,7 @@ debugfs.o: $(srcdir)/debugfs.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
$(top_srcdir)/lib/support/dqblk_v2.h \
$(top_srcdir)/lib/support/quotaio_tree.h $(top_srcdir)/version.h \
- $(srcdir)/../e2fsck/jfs_user.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
+ $(top_srcdir)/lib/ext2fs/jfs_user.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
$(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h \
$(top_srcdir)/lib/ext2fs/compiler.h $(top_srcdir)/lib/support/plausible.h
util.o: $(srcdir)/util.c $(top_builddir)/lib/config.h \
@@ -277,7 +277,7 @@ logdump.o: $(srcdir)/logdump.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/bitops.h $(srcdir)/../misc/create_inode.h \
$(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/quotaio.h \
$(top_srcdir)/lib/support/dqblk_v2.h \
- $(top_srcdir)/lib/support/quotaio_tree.h $(srcdir)/../e2fsck/jfs_user.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h $(top_srcdir)/lib/ext2fs/jfs_user.h \
$(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
$(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
$(top_srcdir)/lib/ext2fs/fast_commit.h
@@ -382,7 +382,7 @@ quota.o: $(srcdir)/quota.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/support/quotaio_tree.h
journal.o: $(srcdir)/journal.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/journal.h \
- $(srcdir)/../e2fsck/jfs_user.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(top_srcdir)/lib/ext2fs/jfs_user.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
$(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
@@ -390,7 +390,7 @@ journal.o: $(srcdir)/journal.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/bitops.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
$(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h \
$(top_srcdir)/lib/ext2fs/compiler.h
-revoke.o: $(srcdir)/../e2fsck/revoke.c $(srcdir)/../e2fsck/jfs_user.h \
+revoke.o: $(srcdir)/../e2fsck/revoke.c $(top_srcdir)/lib/ext2fs/jfs_user.h \
$(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
@@ -399,7 +399,7 @@ revoke.o: $(srcdir)/../e2fsck/revoke.c $(srcdir)/../e2fsck/jfs_user.h \
$(top_srcdir)/lib/ext2fs/bitops.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
$(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h \
$(top_srcdir)/lib/ext2fs/compiler.h
-recovery.o: $(srcdir)/../e2fsck/recovery.c $(srcdir)/../e2fsck/jfs_user.h \
+recovery.o: $(srcdir)/../e2fsck/recovery.c $(top_srcdir)/lib/ext2fs/jfs_user.h \
$(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
@@ -421,4 +421,4 @@ do_journal.o: $(srcdir)/do_journal.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/support/quotaio_tree.h \
$(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
$(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
- $(srcdir)/journal.h $(srcdir)/../e2fsck/jfs_user.h
+ $(srcdir)/journal.h $(top_srcdir)/lib/ext2fs/jfs_user.h
diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
index b67a88bc..28f1ddf0 100644
--- a/debugfs/debugfs.c
+++ b/debugfs/debugfs.c
@@ -37,7 +37,7 @@ extern char *optarg;
#include <ext2fs/ext2_ext_attr.h>
#include "../version.h"
-#include "jfs_user.h"
+#include "ext2fs/jfs_user.h"
#include "support/plausible.h"
#ifndef BUFSIZ
diff --git a/debugfs/journal.c b/debugfs/journal.c
index 095fff00..ee25419a 100644
--- a/debugfs/journal.c
+++ b/debugfs/journal.c
@@ -26,8 +26,6 @@
#include "uuid/uuid.h"
#include "journal.h"
-static int bh_count = 0;
-
#if EXT2_FLAT_INCLUDES
#include "blkid.h"
#else
@@ -43,221 +41,6 @@ static int bh_count = 0;
*/
#undef USE_INODE_IO
-/* Checksumming functions */
-static int ext2fs_journal_verify_csum_type(journal_t *j,
- journal_superblock_t *jsb)
-{
- if (!jbd2_journal_has_csum_v2or3(j))
- return 1;
-
- return jsb->s_checksum_type == JBD2_CRC32C_CHKSUM;
-}
-
-static __u32 ext2fs_journal_sb_csum(journal_superblock_t *jsb)
-{
- __u32 crc, old_crc;
-
- old_crc = jsb->s_checksum;
- jsb->s_checksum = 0;
- crc = ext2fs_crc32c_le(~0, (unsigned char *)jsb,
- sizeof(journal_superblock_t));
- jsb->s_checksum = old_crc;
-
- return crc;
-}
-
-static int ext2fs_journal_sb_csum_verify(journal_t *j,
- journal_superblock_t *jsb)
-{
- __u32 provided, calculated;
-
- if (!jbd2_journal_has_csum_v2or3(j))
- return 1;
-
- provided = ext2fs_be32_to_cpu(jsb->s_checksum);
- calculated = ext2fs_journal_sb_csum(jsb);
-
- return provided == calculated;
-}
-
-static errcode_t ext2fs_journal_sb_csum_set(journal_t *j,
- journal_superblock_t *jsb)
-{
- __u32 crc;
-
- if (!jbd2_journal_has_csum_v2or3(j))
- return 0;
-
- crc = ext2fs_journal_sb_csum(jsb);
- jsb->s_checksum = ext2fs_cpu_to_be32(crc);
- return 0;
-}
-
-/* Kernel compatibility functions for handling the journal. These allow us
- * to use the recovery.c file virtually unchanged from the kernel, so we
- * don't have to do much to keep kernel and user recovery in sync.
- */
-int jbd2_journal_bmap(journal_t *journal, unsigned long block,
- unsigned long long *phys)
-{
-#ifdef USE_INODE_IO
- *phys = block;
- return 0;
-#else
- struct inode *inode = journal->j_inode;
- errcode_t retval;
- blk64_t pblk;
-
- if (!inode) {
- *phys = block;
- return 0;
- }
-
- retval = ext2fs_bmap2(inode->i_fs, inode->i_ino,
- &inode->i_ext2, NULL, 0, (blk64_t) block,
- 0, &pblk);
- *phys = pblk;
- return (int) retval;
-#endif
-}
-
-struct buffer_head *getblk(kdev_t kdev, unsigned long long blocknr,
- int blocksize)
-{
- struct buffer_head *bh;
- int bufsize = sizeof(*bh) + kdev->k_fs->blocksize -
- sizeof(bh->b_data);
- errcode_t retval;
-
- retval = ext2fs_get_memzero(bufsize, &bh);
- if (retval)
- return NULL;
-
- if (journal_enable_debug >= 3)
- bh_count++;
- jfs_debug(4, "getblk for block %llu (%d bytes)(total %d)\n",
- blocknr, blocksize, bh_count);
-
- bh->b_fs = kdev->k_fs;
- if (kdev->k_dev == K_DEV_FS)
- bh->b_io = kdev->k_fs->io;
- else
- bh->b_io = kdev->k_fs->journal_io;
- bh->b_size = blocksize;
- bh->b_blocknr = blocknr;
-
- return bh;
-}
-
-int sync_blockdev(kdev_t kdev)
-{
- io_channel io;
-
- if (kdev->k_dev == K_DEV_FS)
- io = kdev->k_fs->io;
- else
- io = kdev->k_fs->journal_io;
-
- return io_channel_flush(io) ? EIO : 0;
-}
-
-void ll_rw_block(int rw, int op_flags EXT2FS_ATTR((unused)), int nr,
- struct buffer_head *bhp[])
-{
- errcode_t retval;
- struct buffer_head *bh;
-
- for (; nr > 0; --nr) {
- bh = *bhp++;
- if (rw == REQ_OP_READ && !bh->b_uptodate) {
- jfs_debug(3, "reading block %llu/%p\n",
- bh->b_blocknr, (void *) bh);
- retval = io_channel_read_blk64(bh->b_io,
- bh->b_blocknr,
- 1, bh->b_data);
- if (retval) {
- com_err(bh->b_fs->device_name, retval,
- "while reading block %llu\n",
- bh->b_blocknr);
- bh->b_err = (int) retval;
- continue;
- }
- bh->b_uptodate = 1;
- } else if (rw == REQ_OP_WRITE && bh->b_dirty) {
- jfs_debug(3, "writing block %llu/%p\n",
- bh->b_blocknr,
- (void *) bh);
- retval = io_channel_write_blk64(bh->b_io,
- bh->b_blocknr,
- 1, bh->b_data);
- if (retval) {
- com_err(bh->b_fs->device_name, retval,
- "while writing block %llu\n",
- bh->b_blocknr);
- bh->b_err = (int) retval;
- continue;
- }
- bh->b_dirty = 0;
- bh->b_uptodate = 1;
- } else {
- jfs_debug(3, "no-op %s for block %llu\n",
- rw == REQ_OP_READ ? "read" : "write",
- bh->b_blocknr);
- }
- }
-}
-
-void mark_buffer_dirty(struct buffer_head *bh)
-{
- bh->b_dirty = 1;
-}
-
-static void mark_buffer_clean(struct buffer_head *bh)
-{
- bh->b_dirty = 0;
-}
-
-void brelse(struct buffer_head *bh)
-{
- if (bh->b_dirty)
- ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
- jfs_debug(3, "freeing block %llu/%p (total %d)\n",
- bh->b_blocknr, (void *) bh, --bh_count);
- ext2fs_free_mem(&bh);
-}
-
-int buffer_uptodate(struct buffer_head *bh)
-{
- return bh->b_uptodate;
-}
-
-void mark_buffer_uptodate(struct buffer_head *bh, int val)
-{
- bh->b_uptodate = val;
-}
-
-void wait_on_buffer(struct buffer_head *bh)
-{
- if (!bh->b_uptodate)
- ll_rw_block(REQ_OP_READ, 0, 1, &bh);
-}
-
-
-static void ext2fs_clear_recover(ext2_filsys fs, int error)
-{
- ext2fs_clear_feature_journal_needs_recovery(fs->super);
-
- /* if we had an error doing journal recovery, we need a full fsck */
- if (error)
- fs->super->s_state &= ~EXT2_VALID_FS;
- /*
- * If we replayed the journal by definition the file system
- * was mounted since the last time it was checked
- */
- if (fs->super->s_lastcheck >= fs->super->s_mtime)
- fs->super->s_lastcheck = fs->super->s_mtime - 1;
- ext2fs_mark_super_dirty(fs);
-}
/*
* This is a helper function to check the validity of the journal.
@@ -640,40 +423,6 @@ static errcode_t ext2fs_journal_load(journal_t *journal)
return 0;
}
-static void ext2fs_journal_release(ext2_filsys fs, journal_t *journal,
- int reset, int drop)
-{
- journal_superblock_t *jsb;
-
- if (drop)
- mark_buffer_clean(journal->j_sb_buffer);
- else if (fs->flags & EXT2_FLAG_RW) {
- jsb = journal->j_superblock;
- jsb->s_sequence = htonl(journal->j_tail_sequence);
- if (reset)
- jsb->s_start = 0; /* this marks the journal as empty */
- ext2fs_journal_sb_csum_set(journal, jsb);
- mark_buffer_dirty(journal->j_sb_buffer);
- }
- brelse(journal->j_sb_buffer);
-
- if (fs && fs->journal_io) {
- if (fs->io != fs->journal_io)
- io_channel_close(fs->journal_io);
- fs->journal_io = NULL;
- free(fs->journal_name);
- fs->journal_name = NULL;
- }
-
-#ifndef USE_INODE_IO
- if (journal->j_inode)
- ext2fs_free_mem(&journal->j_inode);
-#endif
- if (journal->j_fs_dev)
- ext2fs_free_mem(&journal->j_fs_dev);
- ext2fs_free_mem(&journal);
-}
-
/*
* This function makes sure that the superblock fields regarding the
* journal are consistent.
diff --git a/debugfs/journal.h b/debugfs/journal.h
index 10b638eb..44d4fa72 100644
--- a/debugfs/journal.h
+++ b/debugfs/journal.h
@@ -12,7 +12,7 @@
* any later version.
*/
-#include "jfs_user.h"
+#include "ext2fs/jfs_user.h"
/* journal.c */
errcode_t ext2fs_open_journal(ext2_filsys fs, journal_t **j);
diff --git a/debugfs/logdump.c b/debugfs/logdump.c
index 4154ef2a..99934077 100644
--- a/debugfs/logdump.c
+++ b/debugfs/logdump.c
@@ -32,7 +32,7 @@ extern char *optarg;
#include "debugfs.h"
#include "blkid/blkid.h"
-#include "jfs_user.h"
+#include "ext2fs/jfs_user.h"
#if __GNUC_PREREQ (4, 6)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-function"
diff --git a/e2fsck/Makefile.in b/e2fsck/Makefile.in
index 71ac3cf5..fb8b2b71 100644
--- a/e2fsck/Makefile.in
+++ b/e2fsck/Makefile.in
@@ -383,7 +383,7 @@ pass5.o: $(srcdir)/pass5.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
$(srcdir)/problem.h
journal.o: $(srcdir)/journal.c $(top_builddir)/lib/config.h \
- $(top_builddir)/lib/dirpaths.h $(srcdir)/jfs_user.h $(srcdir)/e2fsck.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/jfs_user.h $(srcdir)/e2fsck.h \
$(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
@@ -396,7 +396,7 @@ journal.o: $(srcdir)/journal.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/fast_commit.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
$(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
$(top_srcdir)/lib/ext2fs/kernel-jbd.h $(srcdir)/problem.h
-recovery.o: $(srcdir)/recovery.c $(srcdir)/jfs_user.h \
+recovery.o: $(srcdir)/recovery.c $(top_srcdir)/lib/ext2fs/jfs_user.h \
$(top_builddir)/lib/config.h $(top_builddir)/lib/dirpaths.h \
$(srcdir)/e2fsck.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
@@ -410,7 +410,7 @@ recovery.o: $(srcdir)/recovery.c $(srcdir)/jfs_user.h \
$(top_srcdir)/lib/ext2fs/fast_commit.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
$(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
$(top_srcdir)/lib/ext2fs/kernel-jbd.h
-revoke.o: $(srcdir)/revoke.c $(srcdir)/jfs_user.h \
+revoke.o: $(srcdir)/revoke.c $(top_srcdir)/lib/ext2fs/jfs_user.h \
$(top_builddir)/lib/config.h $(top_builddir)/lib/dirpaths.h \
$(srcdir)/e2fsck.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
@@ -464,7 +464,7 @@ unix.o: $(srcdir)/unix.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/support/quotaio_tree.h \
$(top_srcdir)/lib/ext2fs/fast_commit.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
$(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
- $(srcdir)/problem.h $(srcdir)/jfs_user.h \
+ $(srcdir)/problem.h $(top_srcdir)/lib/ext2fs/jfs_user.h \
$(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/version.h
dirinfo.o: $(srcdir)/dirinfo.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/e2fsck.h \
diff --git a/e2fsck/e2fsck.c b/e2fsck/e2fsck.c
index 1e295e3e..0ea1e0df 100644
--- a/e2fsck/e2fsck.c
+++ b/e2fsck/e2fsck.c
@@ -83,11 +83,6 @@ errcode_t e2fsck_reset_context(e2fsck_t ctx)
ext2fs_free_icount(ctx->inode_link_info);
ctx->inode_link_info = 0;
}
- if (ctx->journal_io) {
- if (ctx->fs && ctx->fs->io != ctx->journal_io)
- io_channel_close(ctx->journal_io);
- ctx->journal_io = 0;
- }
if (ctx->fs && ctx->fs->dblist) {
ext2fs_free_dblist(ctx->fs->dblist);
ctx->fs->dblist = 0;
diff --git a/e2fsck/e2fsck.h b/e2fsck/e2fsck.h
index 2db216f5..33334781 100644
--- a/e2fsck/e2fsck.h
+++ b/e2fsck/e2fsck.h
@@ -380,7 +380,6 @@ struct e2fsck_struct {
/*
* ext3 journal support
*/
- io_channel journal_io;
char *journal_name;
/*
diff --git a/e2fsck/journal.c b/e2fsck/journal.c
index 2e867234..39d545a3 100644
--- a/e2fsck/journal.c
+++ b/e2fsck/journal.c
@@ -23,12 +23,11 @@
#endif
#define E2FSCK_INCLUDE_INLINE_FUNCS
-#include "jfs_user.h"
+#include "ext2fs/jfs_user.h"
+#include "e2fsck.h"
#include "problem.h"
#include "uuid/uuid.h"
-static int bh_count = 0;
-
/*
* Define USE_INODE_IO to use the inode_io.c / fileio.c codepaths.
* This creates a larger static binary, and a smaller binary using
@@ -38,215 +37,6 @@ static int bh_count = 0;
*/
#undef USE_INODE_IO
-/* Checksumming functions */
-static int e2fsck_journal_verify_csum_type(journal_t *j,
- journal_superblock_t *jsb)
-{
- if (!jbd2_journal_has_csum_v2or3(j))
- return 1;
-
- return jsb->s_checksum_type == JBD2_CRC32C_CHKSUM;
-}
-
-static __u32 e2fsck_journal_sb_csum(journal_superblock_t *jsb)
-{
- __u32 crc, old_crc;
-
- old_crc = jsb->s_checksum;
- jsb->s_checksum = 0;
- crc = ext2fs_crc32c_le(~0, (unsigned char *)jsb,
- sizeof(journal_superblock_t));
- jsb->s_checksum = old_crc;
-
- return crc;
-}
-
-static int e2fsck_journal_sb_csum_verify(journal_t *j,
- journal_superblock_t *jsb)
-{
- __u32 provided, calculated;
-
- if (!jbd2_journal_has_csum_v2or3(j))
- return 1;
-
- provided = ext2fs_be32_to_cpu(jsb->s_checksum);
- calculated = e2fsck_journal_sb_csum(jsb);
-
- return provided == calculated;
-}
-
-static errcode_t e2fsck_journal_sb_csum_set(journal_t *j,
- journal_superblock_t *jsb)
-{
- __u32 crc;
-
- if (!jbd2_journal_has_csum_v2or3(j))
- return 0;
-
- crc = e2fsck_journal_sb_csum(jsb);
- jsb->s_checksum = ext2fs_cpu_to_be32(crc);
- return 0;
-}
-
-/* Kernel compatibility functions for handling the journal. These allow us
- * to use the recovery.c file virtually unchanged from the kernel, so we
- * don't have to do much to keep kernel and user recovery in sync.
- */
-int jbd2_journal_bmap(journal_t *journal, unsigned long block,
- unsigned long long *phys)
-{
-#ifdef USE_INODE_IO
- *phys = block;
- return 0;
-#else
- struct inode *inode = journal->j_inode;
- errcode_t retval;
- blk64_t pblk;
-
- if (!inode) {
- *phys = block;
- return 0;
- }
-
- retval= ext2fs_bmap2(inode->i_ctx->fs, inode->i_ino,
- &inode->i_ext2, NULL, 0, (blk64_t) block,
- 0, &pblk);
- *phys = pblk;
- return -1 * ((int) retval);
-#endif
-}
-
-struct buffer_head *getblk(kdev_t kdev, unsigned long long blocknr,
- int blocksize)
-{
- struct buffer_head *bh;
- int bufsize = sizeof(*bh) + kdev->k_ctx->fs->blocksize -
- sizeof(bh->b_data);
-
- bh = e2fsck_allocate_memory(kdev->k_ctx, bufsize, "block buffer");
- if (!bh)
- return NULL;
-
- if (journal_enable_debug >= 3)
- bh_count++;
- jfs_debug(4, "getblk for block %llu (%d bytes)(total %d)\n",
- blocknr, blocksize, bh_count);
-
- bh->b_ctx = kdev->k_ctx;
- if (kdev->k_dev == K_DEV_FS)
- bh->b_io = kdev->k_ctx->fs->io;
- else
- bh->b_io = kdev->k_ctx->journal_io;
- bh->b_size = blocksize;
- bh->b_blocknr = blocknr;
-
- return bh;
-}
-
-int sync_blockdev(kdev_t kdev)
-{
- io_channel io;
-
- if (kdev->k_dev == K_DEV_FS)
- io = kdev->k_ctx->fs->io;
- else
- io = kdev->k_ctx->journal_io;
-
- return io_channel_flush(io) ? -EIO : 0;
-}
-
-void ll_rw_block(int rw, int op_flags EXT2FS_ATTR((unused)), int nr,
- struct buffer_head *bhp[])
-{
- errcode_t retval;
- struct buffer_head *bh;
-
- for (; nr > 0; --nr) {
- bh = *bhp++;
- if (rw == REQ_OP_READ && !bh->b_uptodate) {
- jfs_debug(3, "reading block %llu/%p\n",
- bh->b_blocknr, (void *) bh);
- retval = io_channel_read_blk64(bh->b_io,
- bh->b_blocknr,
- 1, bh->b_data);
- if (retval) {
- com_err(bh->b_ctx->device_name, retval,
- "while reading block %llu\n",
- bh->b_blocknr);
- bh->b_err = (int) retval;
- continue;
- }
- bh->b_uptodate = 1;
- } else if (rw == REQ_OP_WRITE && bh->b_dirty) {
- jfs_debug(3, "writing block %llu/%p\n",
- bh->b_blocknr,
- (void *) bh);
- retval = io_channel_write_blk64(bh->b_io,
- bh->b_blocknr,
- 1, bh->b_data);
- if (retval) {
- com_err(bh->b_ctx->device_name, retval,
- "while writing block %llu\n",
- bh->b_blocknr);
- bh->b_err = (int) retval;
- continue;
- }
- bh->b_dirty = 0;
- bh->b_uptodate = 1;
- } else {
- jfs_debug(3, "no-op %s for block %llu\n",
- rw == REQ_OP_READ ? "read" : "write",
- bh->b_blocknr);
- }
- }
-}
-
-void mark_buffer_dirty(struct buffer_head *bh)
-{
- bh->b_dirty = 1;
-}
-
-static void mark_buffer_clean(struct buffer_head * bh)
-{
- bh->b_dirty = 0;
-}
-
-void brelse(struct buffer_head *bh)
-{
- if (bh->b_dirty)
- ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
- jfs_debug(3, "freeing block %llu/%p (total %d)\n",
- bh->b_blocknr, (void *) bh, --bh_count);
- ext2fs_free_mem(&bh);
-}
-
-int buffer_uptodate(struct buffer_head *bh)
-{
- return bh->b_uptodate;
-}
-
-void mark_buffer_uptodate(struct buffer_head *bh, int val)
-{
- bh->b_uptodate = val;
-}
-
-void wait_on_buffer(struct buffer_head *bh)
-{
- if (!bh->b_uptodate)
- ll_rw_block(REQ_OP_READ, 0, 1, &bh);
-}
-
-
-static void e2fsck_clear_recover(e2fsck_t ctx, int error)
-{
- ext2fs_clear_feature_journal_needs_recovery(ctx->fs->super);
-
- /* if we had an error doing journal recovery, we need a full fsck */
- if (error)
- ctx->fs->super->s_state &= ~EXT2_VALID_FS;
- ext2fs_mark_super_dirty(ctx->fs);
-}
-
/*
* This is a helper function to check the validity of the journal.
*/
@@ -980,6 +770,7 @@ static errcode_t e2fsck_get_journal(e2fsck_t ctx, journal_t **ret_journal)
dev_journal = dev_fs+1;
dev_fs->k_ctx = dev_journal->k_ctx = ctx;
+ dev_fs->k_fs = dev_journal->k_fs = ctx->fs;
dev_fs->k_dev = K_DEV_FS;
dev_journal->k_dev = K_DEV_JOURNAL;
@@ -1001,6 +792,7 @@ static errcode_t e2fsck_get_journal(e2fsck_t ctx, journal_t **ret_journal)
}
j_inode->i_ctx = ctx;
+ j_inode->i_fs = ctx->fs;
j_inode->i_ino = sb->s_journal_inum;
if ((retval = ext2fs_read_inode(ctx->fs,
@@ -1061,7 +853,7 @@ static errcode_t e2fsck_get_journal(e2fsck_t ctx, journal_t **ret_journal)
io_ptr = inode_io_manager;
#else
journal->j_inode = j_inode;
- ctx->journal_io = ctx->fs->io;
+ ctx->fs->journal_io = ctx->fs->io;
if ((ret = jbd2_journal_bmap(journal, 0, &start)) != 0) {
retval = (errcode_t) (-1 * ret);
goto errout;
@@ -1108,12 +900,12 @@ static errcode_t e2fsck_get_journal(e2fsck_t ctx, journal_t **ret_journal)
retval = io_ptr->open(journal_name, flags,
- &ctx->journal_io);
+ &ctx->fs->journal_io);
}
if (retval)
goto errout;
- io_channel_set_blksize(ctx->journal_io, ctx->fs->blocksize);
+ io_channel_set_blksize(ctx->fs->journal_io, ctx->fs->blocksize);
if (ext_journal) {
blk64_t maxlen;
@@ -1226,13 +1018,13 @@ static errcode_t e2fsck_journal_fix_bad_inode(e2fsck_t ctx,
memset(sb->s_jnl_blocks, 0, sizeof(sb->s_jnl_blocks));
ctx->flags |= E2F_FLAG_JOURNAL_INODE;
ctx->fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
- e2fsck_clear_recover(ctx, 1);
+ ext2fs_clear_recover(ctx->fs, 1);
return 0;
}
return EXT2_ET_CORRUPT_JOURNAL_SB;
} else if (recover) {
if (fix_problem(ctx, PR_0_JOURNAL_RECOVER_SET, pctx)) {
- e2fsck_clear_recover(ctx, 1);
+ ext2fs_clear_recover(ctx->fs, 1);
return 0;
}
return EXT2_ET_UNSUPP_FEATURE;
@@ -1330,8 +1122,8 @@ static errcode_t e2fsck_journal_load(journal_t *journal)
jbd2_has_feature_checksum(journal))
return EXT2_ET_CORRUPT_JOURNAL_SB;
- if (!e2fsck_journal_verify_csum_type(journal, jsb) ||
- !e2fsck_journal_sb_csum_verify(journal, jsb))
+ if (!ext2fs_journal_verify_csum_type(journal, jsb) ||
+ !ext2fs_journal_sb_csum_verify(journal, jsb))
return EXT2_ET_CORRUPT_JOURNAL_SB;
if (jbd2_journal_has_csum_v2or3(journal))
@@ -1419,7 +1211,7 @@ static void e2fsck_journal_reset_super(e2fsck_t ctx, journal_superblock_t *jsb,
for (i = 0; i < 4; i ++)
new_seq ^= u.val[i];
jsb->s_sequence = htonl(new_seq);
- e2fsck_journal_sb_csum_set(journal, jsb);
+ ext2fs_journal_sb_csum_set(journal, jsb);
mark_buffer_dirty(journal->j_sb_buffer);
ll_rw_block(REQ_OP_WRITE, 0, 1, &journal->j_sb_buffer);
@@ -1437,7 +1229,7 @@ static errcode_t e2fsck_journal_fix_corrupt_super(e2fsck_t ctx,
e2fsck_journal_reset_super(ctx, journal->j_superblock,
journal);
journal->j_transaction_sequence = 1;
- e2fsck_clear_recover(ctx, recover);
+ ext2fs_clear_recover(ctx->fs, recover);
return 0;
}
return EXT2_ET_CORRUPT_JOURNAL_SB;
@@ -1447,38 +1239,6 @@ static errcode_t e2fsck_journal_fix_corrupt_super(e2fsck_t ctx,
return 0;
}
-static void e2fsck_journal_release(e2fsck_t ctx, journal_t *journal,
- int reset, int drop)
-{
- journal_superblock_t *jsb;
-
- if (drop)
- mark_buffer_clean(journal->j_sb_buffer);
- else if (!(ctx->options & E2F_OPT_READONLY)) {
- jsb = journal->j_superblock;
- jsb->s_sequence = htonl(journal->j_tail_sequence);
- if (reset)
- jsb->s_start = 0; /* this marks the journal as empty */
- e2fsck_journal_sb_csum_set(journal, jsb);
- mark_buffer_dirty(journal->j_sb_buffer);
- }
- brelse(journal->j_sb_buffer);
-
- if (ctx->journal_io) {
- if (ctx->fs && ctx->fs->io != ctx->journal_io)
- io_channel_close(ctx->journal_io);
- ctx->journal_io = 0;
- }
-
-#ifndef USE_INODE_IO
- if (journal->j_inode)
- ext2fs_free_mem(&journal->j_inode);
-#endif
- if (journal->j_fs_dev)
- ext2fs_free_mem(&journal->j_fs_dev);
- ext2fs_free_mem(&journal);
-}
-
/*
* This function makes sure that the superblock fields regarding the
* journal are consistent.
@@ -1525,7 +1285,7 @@ errcode_t e2fsck_check_ext3_journal(e2fsck_t ctx)
(!fix_problem(ctx, PR_0_JOURNAL_UNSUPP_VERSION, &pctx))))
retval = e2fsck_journal_fix_corrupt_super(ctx, journal,
&pctx);
- e2fsck_journal_release(ctx, journal, 0, 1);
+ ext2fs_journal_release(ctx->fs, journal, 0, 1);
return retval;
}
@@ -1552,7 +1312,7 @@ no_has_journal:
sb->s_journal_dev = 0;
memset(sb->s_journal_uuid, 0,
sizeof(sb->s_journal_uuid));
- e2fsck_clear_recover(ctx, force_fsck);
+ ext2fs_clear_recover(ctx->fs, force_fsck);
} else if (!(ctx->options & E2F_OPT_READONLY)) {
ext2fs_set_feature_journal(sb);
ctx->fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
@@ -1602,11 +1362,11 @@ no_has_journal:
ctx->fs->super->s_state |= EXT2_ERROR_FS;
ext2fs_mark_super_dirty(ctx->fs);
journal->j_superblock->s_errno = 0;
- e2fsck_journal_sb_csum_set(journal, journal->j_superblock);
+ ext2fs_journal_sb_csum_set(journal, journal->j_superblock);
mark_buffer_dirty(journal->j_sb_buffer);
}
- e2fsck_journal_release(ctx, journal, reset, 0);
+ ext2fs_journal_release(ctx->fs, journal, reset, 0);
return retval;
}
@@ -1655,7 +1415,7 @@ errout:
jbd2_journal_destroy_revoke(journal);
jbd2_journal_destroy_revoke_record_cache();
jbd2_journal_destroy_revoke_table_cache();
- e2fsck_journal_release(ctx, journal, 1, 0);
+ ext2fs_journal_release(ctx->fs, journal, 1, 0);
return retval;
}
@@ -1706,7 +1466,7 @@ errcode_t e2fsck_run_ext3_journal(e2fsck_t ctx)
ctx->fs->super->s_kbytes_written += kbytes_written;
/* Set the superblock flags */
- e2fsck_clear_recover(ctx, recover_retval != 0);
+ ext2fs_clear_recover(ctx->fs, recover_retval != 0);
/*
* Do one last sanity check, and propagate journal->s_errno to
diff --git a/e2fsck/logfile.c b/e2fsck/logfile.c
index 63e9a12f..2b92ecd7 100644
--- a/e2fsck/logfile.c
+++ b/e2fsck/logfile.c
@@ -20,7 +20,7 @@
#include "e2fsck.h"
#include <pwd.h>
-extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+extern struct e2fsck_struct *e2fsck_global_ctx; /* Try your very best not to use this! */
struct string {
char *s;
diff --git a/e2fsck/recovery.c b/e2fsck/recovery.c
index 8ca35271..92d35426 100644
--- a/e2fsck/recovery.c
+++ b/e2fsck/recovery.c
@@ -11,7 +11,7 @@
*/
#ifndef __KERNEL__
-#include "jfs_user.h"
+#include "ext2fs/jfs_user.h"
#else
#include <linux/time.h>
#include <linux/fs.h>
diff --git a/e2fsck/revoke.c b/e2fsck/revoke.c
index fa608788..8bb97c2f 100644
--- a/e2fsck/revoke.c
+++ b/e2fsck/revoke.c
@@ -78,7 +78,7 @@
*/
#ifndef __KERNEL__
-#include "jfs_user.h"
+#include "ext2fs/jfs_user.h"
#else
#include <linux/time.h>
#include <linux/fs.h>
diff --git a/e2fsck/unix.c b/e2fsck/unix.c
index ae231f93..92fadda9 100644
--- a/e2fsck/unix.c
+++ b/e2fsck/unix.c
@@ -54,7 +54,7 @@ extern int optind;
#include "support/plausible.h"
#include "e2fsck.h"
#include "problem.h"
-#include "jfs_user.h"
+#include "ext2fs/jfs_user.h"
#include "../version.h"
/* Command line options */
@@ -66,7 +66,7 @@ static int replace_bad_blocks;
static int keep_bad_blocks;
static char *bad_blocks_file;
-e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+struct e2fsck_struct *e2fsck_global_ctx; /* Try your very best not to use this! */
#ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
int journal_enable_debug = -1;
diff --git a/e2fsck/util.c b/e2fsck/util.c
index 3fe3c988..7b8e2267 100644
--- a/e2fsck/util.c
+++ b/e2fsck/util.c
@@ -39,7 +39,7 @@
#include "e2fsck.h"
-extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+extern struct e2fsck_struct *e2fsck_global_ctx; /* Try your very best not to use this! */
#include <stdarg.h>
#include <time.h>
diff --git a/lib/ext2fs/Android.bp b/lib/ext2fs/Android.bp
index 919adb13..37d9174d 100644
--- a/lib/ext2fs/Android.bp
+++ b/lib/ext2fs/Android.bp
@@ -81,6 +81,7 @@ cc_library {
"mmp.c",
"mkdir.c",
"mkjournal.c",
+ "jfs_user.c",
"namei.c",
"native.c",
"newdir.c",
diff --git a/lib/ext2fs/Makefile.in b/lib/ext2fs/Makefile.in
index f6a050a2..b3fc1ba9 100644
--- a/lib/ext2fs/Makefile.in
+++ b/lib/ext2fs/Makefile.in
@@ -5,10 +5,8 @@ top_builddir = ../..
my_dir = lib/ext2fs
INSTALL = @INSTALL@
MKDIR_P = @MKDIR_P@
-DEPEND_CFLAGS = -I$(top_srcdir)/debugfs -I$(srcdir)/../../e2fsck -DDEBUGFS
-# This nastiness is needed because of jfs_user.h hackery; when we finally
-# clean up this mess, we should be able to drop it
-DEBUGFS_CFLAGS = -I$(srcdir)/../../e2fsck $(ALL_CFLAGS) -DDEBUGFS
+DEPEND_CFLAGS = -I$(top_srcdir)/debugfs -DDEBUGFS
+DEBUGFS_CFLAGS = $(ALL_CFLAGS) -DDEBUGFS
@MCONFIG@
@@ -109,6 +107,7 @@ OBJS= $(DEBUGFS_LIB_OBJS) $(RESIZE_LIB_OBJS) $(E2IMAGE_LIB_OBJS) \
lookup.o \
mkdir.o \
mkjournal.o \
+ jfs_user.o \
mmp.o \
namei.o \
native.o \
@@ -193,6 +192,7 @@ SRCS= ext2_err.c \
$(srcdir)/lookup.c \
$(srcdir)/mkdir.c \
$(srcdir)/mkjournal.c \
+ $(srcdir)/jfs_user.c \
$(srcdir)/mmp.c \
$(srcdir)/namei.c \
$(srcdir)/native.c \
@@ -1010,6 +1010,9 @@ mkjournal.o: $(srcdir)/mkjournal.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/ext2fs/ext2_err.h $(srcdir)/ext2_ext_attr.h \
$(srcdir)/hashmap.h $(srcdir)/bitops.h $(srcdir)/kernel-jbd.h \
$(srcdir)/jfs_compat.h $(srcdir)/kernel-list.h $(srcdir)/compiler.h
+jfs_user.o: $(srcdir)/jfs_user.c $(top_builddir)/lib/config.h \
+ $(srcdir)/jfs_user.h \
+ $(srcdir)/jfs_compat.h $(srcdir)/kernel-list.h $(srcdir)/compiler.h
mmp.o: $(srcdir)/mmp.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fs.h \
@@ -1231,7 +1234,7 @@ debugfs.o: $(top_srcdir)/debugfs/debugfs.c $(top_builddir)/lib/config.h \
$(top_srcdir)/debugfs/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
$(top_srcdir)/lib/support/quotaio.h $(top_srcdir)/lib/support/dqblk_v2.h \
$(top_srcdir)/lib/support/quotaio_tree.h $(top_srcdir)/debugfs/../version.h \
- $(srcdir)/../../e2fsck/jfs_user.h $(srcdir)/kernel-jbd.h \
+ $(srcdir)/jfs_user.h $(srcdir)/kernel-jbd.h \
$(srcdir)/jfs_compat.h $(srcdir)/kernel-list.h $(srcdir)/compiler.h \
$(top_srcdir)/lib/support/plausible.h
util.o: $(top_srcdir)/debugfs/util.c $(top_builddir)/lib/config.h \
@@ -1321,7 +1324,7 @@ logdump.o: $(top_srcdir)/debugfs/logdump.c $(top_builddir)/lib/config.h \
$(srcdir)/hashmap.h $(srcdir)/bitops.h \
$(top_srcdir)/debugfs/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
$(top_srcdir)/lib/support/quotaio.h $(top_srcdir)/lib/support/dqblk_v2.h \
- $(top_srcdir)/lib/support/quotaio_tree.h $(srcdir)/../../e2fsck/jfs_user.h \
+ $(top_srcdir)/lib/support/quotaio_tree.h $(srcdir)/jfs_user.h \
$(srcdir)/kernel-jbd.h $(srcdir)/jfs_compat.h $(srcdir)/kernel-list.h \
$(srcdir)/compiler.h $(srcdir)/fast_commit.h
htree.o: $(top_srcdir)/debugfs/htree.c $(top_builddir)/lib/config.h \
@@ -1422,20 +1425,20 @@ create_inode.o: $(top_srcdir)/misc/create_inode.c \
$(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/support/nls-enable.h
journal.o: $(top_srcdir)/debugfs/journal.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(top_srcdir)/debugfs/journal.h \
- $(srcdir)/../../e2fsck/jfs_user.h $(srcdir)/ext2_fs.h \
+ $(srcdir)/jfs_user.h $(srcdir)/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fs.h \
$(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h $(srcdir)/ext2_io.h \
$(top_builddir)/lib/ext2fs/ext2_err.h $(srcdir)/ext2_ext_attr.h \
$(srcdir)/hashmap.h $(srcdir)/bitops.h $(srcdir)/kernel-jbd.h \
$(srcdir)/jfs_compat.h $(srcdir)/kernel-list.h $(srcdir)/compiler.h
-revoke.o: $(top_srcdir)/e2fsck/revoke.c $(top_srcdir)/e2fsck/jfs_user.h \
+revoke.o: $(top_srcdir)/e2fsck/revoke.c $(srcdir)/jfs_user.h \
$(srcdir)/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
$(srcdir)/ext2fs.h $(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
$(srcdir)/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(srcdir)/ext2_ext_attr.h $(srcdir)/hashmap.h $(srcdir)/bitops.h \
$(srcdir)/kernel-jbd.h $(srcdir)/jfs_compat.h $(srcdir)/kernel-list.h \
$(srcdir)/compiler.h
-recovery.o: $(top_srcdir)/e2fsck/recovery.c $(top_srcdir)/e2fsck/jfs_user.h \
+recovery.o: $(top_srcdir)/e2fsck/recovery.c $(srcdir)/jfs_user.h \
$(srcdir)/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
$(srcdir)/ext2fs.h $(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
$(srcdir)/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
@@ -1454,4 +1457,4 @@ do_journal.o: $(top_srcdir)/debugfs/do_journal.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/support/quotaio.h $(top_srcdir)/lib/support/dqblk_v2.h \
$(top_srcdir)/lib/support/quotaio_tree.h $(srcdir)/kernel-jbd.h \
$(srcdir)/jfs_compat.h $(srcdir)/kernel-list.h $(srcdir)/compiler.h \
- $(top_srcdir)/debugfs/journal.h $(srcdir)/../../e2fsck/jfs_user.h
+ $(top_srcdir)/debugfs/journal.h $(srcdir)/jfs_user.h
diff --git a/lib/ext2fs/jfs_user.c b/lib/ext2fs/jfs_user.c
new file mode 100644
index 00000000..b6ae0229
--- /dev/null
+++ b/lib/ext2fs/jfs_user.c
@@ -0,0 +1,255 @@
+#include <jfs_user.h>
+
+static int bh_count = 0;
+
+void ll_rw_block(int rw, int op_flags EXT2FS_ATTR((unused)), int nr,
+ struct buffer_head *bhp[])
+{
+ errcode_t retval;
+ struct buffer_head *bh;
+
+ for (; nr > 0; --nr) {
+ bh = *bhp++;
+ if (rw == REQ_OP_READ && !bh->b_uptodate) {
+ jfs_debug(3, "reading block %llu/%p\n",
+ bh->b_blocknr, (void *) bh);
+ retval = io_channel_read_blk64(bh->b_io,
+ bh->b_blocknr,
+ 1, bh->b_data);
+ if (retval) {
+ com_err(bh->b_fs->device_name, retval,
+ "while reading block %llu\n",
+ bh->b_blocknr);
+ bh->b_err = (int) retval;
+ continue;
+ }
+ bh->b_uptodate = 1;
+ } else if (rw == REQ_OP_WRITE && bh->b_dirty) {
+ jfs_debug(3, "writing block %llu/%p\n",
+ bh->b_blocknr,
+ (void *) bh);
+ retval = io_channel_write_blk64(bh->b_io,
+ bh->b_blocknr,
+ 1, bh->b_data);
+ if (retval) {
+ com_err(bh->b_fs->device_name, retval,
+ "while writing block %llu\n",
+ bh->b_blocknr);
+ bh->b_err = (int) retval;
+ continue;
+ }
+ bh->b_dirty = 0;
+ bh->b_uptodate = 1;
+ } else {
+ jfs_debug(3, "no-op %s for block %llu\n",
+ rw == REQ_OP_READ ? "read" : "write",
+ bh->b_blocknr);
+ }
+ }
+}
+
+void mark_buffer_dirty(struct buffer_head *bh)
+{
+ bh->b_dirty = 1;
+}
+
+void mark_buffer_clean(struct buffer_head * bh)
+{
+ bh->b_dirty = 0;
+}
+
+int sync_blockdev(kdev_t kdev)
+{
+ io_channel io;
+
+ if (kdev->k_dev == K_DEV_FS)
+ io = kdev->k_fs->io;
+ else
+ io = kdev->k_fs->journal_io;
+
+ return io_channel_flush(io) ? EIO : 0;
+}
+
+int buffer_uptodate(struct buffer_head *bh)
+{
+ return bh->b_uptodate;
+}
+
+void mark_buffer_uptodate(struct buffer_head *bh, int val)
+{
+ bh->b_uptodate = val;
+}
+
+void wait_on_buffer(struct buffer_head *bh)
+{
+ if (!bh->b_uptodate)
+ ll_rw_block(REQ_OP_READ, 0, 1, &bh);
+}
+
+
+struct buffer_head *getblk(kdev_t kdev, unsigned long long blocknr,
+ int blocksize)
+{
+ struct buffer_head *bh;
+ int bufsize = sizeof(*bh) + kdev->k_fs->blocksize -
+ sizeof(bh->b_data);
+ errcode_t retval;
+
+ retval = ext2fs_get_memzero(bufsize, &bh);
+ if (retval)
+ return NULL;
+
+ if (journal_enable_debug >= 3)
+ bh_count++;
+ jfs_debug(4, "getblk for block %llu (%d bytes)(total %d)\n",
+ blocknr, blocksize, bh_count);
+
+ bh->b_fs = kdev->k_fs;
+ bh->b_ctx = kdev->k_ctx;
+ if (kdev->k_dev == K_DEV_FS)
+ bh->b_io = kdev->k_fs->io;
+ else
+ bh->b_io = kdev->k_fs->journal_io;
+ bh->b_size = blocksize;
+ bh->b_blocknr = blocknr;
+
+ return bh;
+}
+
+
+void brelse(struct buffer_head *bh)
+{
+ if (bh->b_dirty)
+ ll_rw_block(REQ_OP_WRITE, 0, 1, &bh);
+ jfs_debug(3, "freeing block %llu/%p (total %d)\n",
+ bh->b_blocknr, (void *) bh, --bh_count);
+ ext2fs_free_mem(&bh);
+}
+
+/* Kernel compatibility functions for handling the journal. These allow us
+ * to use the recovery.c file virtually unchanged from the kernel, so we
+ * don't have to do much to keep kernel and user recovery in sync.
+ */
+int jbd2_journal_bmap(journal_t *journal, unsigned long block,
+ unsigned long long *phys)
+{
+#ifdef USE_INODE_IO
+ *phys = block;
+ return 0;
+#else
+ struct inode *inode = journal->j_inode;
+ errcode_t retval;
+ blk64_t pblk;
+
+ if (!inode) {
+ *phys = block;
+ return 0;
+ }
+
+ retval = ext2fs_bmap2(inode->i_fs, inode->i_ino,
+ &inode->i_ext2, NULL, 0, (blk64_t) block,
+ 0, &pblk);
+ *phys = pblk;
+ return (int) retval;
+#endif
+}
+
+static __u32 ext2fs_journal_sb_csum(journal_superblock_t *jsb)
+{
+ __u32 crc, old_crc;
+
+ old_crc = jsb->s_checksum;
+ jsb->s_checksum = 0;
+ crc = ext2fs_crc32c_le(~0, (unsigned char *)jsb,
+ sizeof(journal_superblock_t));
+ jsb->s_checksum = old_crc;
+
+ return crc;
+}
+
+int ext2fs_journal_sb_csum_verify(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ __u32 provided, calculated;
+
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return 1;
+
+ provided = ext2fs_be32_to_cpu(jsb->s_checksum);
+ calculated = ext2fs_journal_sb_csum(jsb);
+
+ return provided == calculated;
+}
+
+errcode_t ext2fs_journal_sb_csum_set(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ __u32 crc;
+
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return 0;
+
+ crc = ext2fs_journal_sb_csum(jsb);
+ jsb->s_checksum = ext2fs_cpu_to_be32(crc);
+ return 0;
+}
+
+/* Checksumming functions */
+int ext2fs_journal_verify_csum_type(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return 1;
+
+ return jsb->s_checksum_type == JBD2_CRC32C_CHKSUM;
+}
+
+void ext2fs_clear_recover(ext2_filsys fs, int error)
+{
+ ext2fs_clear_feature_journal_needs_recovery(fs->super);
+
+ /* if we had an error doing journal recovery, we need a full fsck */
+ if (error)
+ fs->super->s_state &= ~EXT2_VALID_FS;
+ /*
+ * If we replayed the journal by definition the file system
+ * was mounted since the last time it was checked
+ */
+ if (fs->super->s_lastcheck >= fs->super->s_mtime)
+ fs->super->s_lastcheck = fs->super->s_mtime - 1;
+ ext2fs_mark_super_dirty(fs);
+}
+
+void ext2fs_journal_release(ext2_filsys fs, journal_t *journal,
+ int reset, int drop)
+{
+ journal_superblock_t *jsb;
+
+ if (drop)
+ mark_buffer_clean(journal->j_sb_buffer);
+ else if (fs->flags & EXT2_FLAG_RW) {
+ jsb = journal->j_superblock;
+ jsb->s_sequence = htonl(journal->j_tail_sequence);
+ if (reset)
+ jsb->s_start = 0; /* this marks the journal as empty */
+ ext2fs_journal_sb_csum_set(journal, jsb);
+ mark_buffer_dirty(journal->j_sb_buffer);
+ }
+ brelse(journal->j_sb_buffer);
+
+ if (fs && fs->journal_io) {
+ if (fs->io != fs->journal_io)
+ io_channel_close(fs->journal_io);
+ fs->journal_io = NULL;
+ free(fs->journal_name);
+ fs->journal_name = NULL;
+ }
+
+#ifndef USE_INODE_IO
+ if (journal->j_inode)
+ ext2fs_free_mem(&journal->j_inode);
+#endif
+ if (journal->j_fs_dev)
+ ext2fs_free_mem(&journal->j_fs_dev);
+ ext2fs_free_mem(&journal);
+}
diff --git a/e2fsck/jfs_user.h b/lib/ext2fs/jfs_user.h
similarity index 89%
rename from e2fsck/jfs_user.h
rename to lib/ext2fs/jfs_user.h
index 4ad2005a..ed75c4a5 100644
--- a/e2fsck/jfs_user.h
+++ b/lib/ext2fs/jfs_user.h
@@ -11,7 +11,6 @@
#ifndef _JFS_USER_H
#define _JFS_USER_H
-#ifdef DEBUGFS
#include <stdio.h>
#include <stdlib.h>
#if EXT2_FLAT_INCLUDES
@@ -23,13 +22,8 @@
#include "ext2fs/ext2fs.h"
#include "blkid/blkid.h"
#endif
-#else
-/*
- * Pull in the definition of the e2fsck context structure
- */
-#include "config.h"
-#include "e2fsck.h"
-#endif
+
+struct e2fsck_struct;
#if __STDC_VERSION__ < 199901L
# if __GNUC__ >= 2 || _MSC_VER >= 1300
@@ -40,11 +34,8 @@
#endif
struct buffer_head {
-#ifdef DEBUGFS
ext2_filsys b_fs;
-#else
- e2fsck_t b_ctx;
-#endif
+ struct e2fsck_struct *b_ctx;
io_channel b_io;
int b_size;
int b_err;
@@ -55,21 +46,15 @@ struct buffer_head {
};
struct inode {
-#ifdef DEBUGFS
ext2_filsys i_fs;
-#else
- e2fsck_t i_ctx;
-#endif
+ struct e2fsck_struct *i_ctx;
ext2_ino_t i_ino;
struct ext2_inode i_ext2;
};
struct kdev_s {
-#ifdef DEBUGFS
ext2_filsys k_fs;
-#else
- e2fsck_t k_ctx;
-#endif
+ struct e2fsck_struct *k_ctx;
int k_dev;
};
@@ -223,27 +208,41 @@ int sync_blockdev(kdev_t kdev);
void ll_rw_block(int rw, int op_flags, int nr, struct buffer_head *bh[]);
void mark_buffer_dirty(struct buffer_head *bh);
void mark_buffer_uptodate(struct buffer_head *bh, int val);
+void mark_buffer_clean(struct buffer_head * bh);
void brelse(struct buffer_head *bh);
int buffer_uptodate(struct buffer_head *bh);
void wait_on_buffer(struct buffer_head *bh);
+int ext2fs_journal_verify_csum_type(journal_t *j,
+ journal_superblock_t *jsb);
+int ext2fs_journal_sb_csum_verify(journal_t *j,
+ journal_superblock_t *jsb);
+errcode_t ext2fs_journal_sb_csum_set(journal_t *j,
+ journal_superblock_t *jsb);
+
+void ext2fs_journal_release(ext2_filsys fs, journal_t *journal,
+ int reset, int drop);
+void ext2fs_clear_recover(ext2_filsys fs, int error);
+
+
/*
* Define newer 2.5 interfaces
*/
#define __getblk(dev, blocknr, blocksize) getblk(dev, blocknr, blocksize)
#define set_buffer_uptodate(bh) mark_buffer_uptodate(bh, 1)
-#ifdef DEBUGFS
-#include <assert.h>
-#undef J_ASSERT
-#define J_ASSERT(x) assert(x)
-
#define JSB_HAS_INCOMPAT_FEATURE(jsb, mask) \
((jsb)->s_header.h_blocktype == ext2fs_cpu_to_be32(JBD2_SUPERBLOCK_V2) && \
((jsb)->s_feature_incompat & ext2fs_cpu_to_be32((mask))))
-#else /* !DEBUGFS */
-extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+#ifdef DEBUGFS
+#include <assert.h>
+#undef J_ASSERT
+#define J_ASSERT(x) assert(x)
+#else
+
+extern struct e2fsck_struct *e2fsck_global_ctx; /* Try your very best not to use this! */
+extern void fatal_error(struct e2fsck_struct * ctx, const char * fmt_string);
#define J_ASSERT(assert) \
do { if (!(assert)) { \
@@ -279,4 +278,6 @@ extern int jbd2_journal_set_revoke(journal_t *, unsigned long long, tid_t);
extern int jbd2_journal_test_revoke(journal_t *, unsigned long long, tid_t);
extern void jbd2_journal_clear_revoke(journal_t *);
+
+
#endif /* _JFS_USER_H */
diff --git a/misc/Makefile.in b/misc/Makefile.in
index 4db59cdf..6f863773 100644
--- a/misc/Makefile.in
+++ b/misc/Makefile.in
@@ -126,8 +126,8 @@ COMPILE_ET= _ET_DIR_OVERRIDE=$(srcdir)/../lib/et/et ../lib/et/compile_et
# This nastiness is needed because of jfs_user.h hackery; when we finally
# clean up this mess, we should be able to drop it
-JOURNAL_CFLAGS = -I$(srcdir)/../e2fsck $(ALL_CFLAGS) -DDEBUGFS
-DEPEND_CFLAGS = -I$(top_srcdir)/e2fsck
+JOURNAL_CFLAGS = $(ALL_CFLAGS) -DDEBUGFS
+DEPEND_CFLAGS =
.c.o:
$(E) " CC $<"
@@ -878,7 +878,7 @@ check_fuzzer.o: $(srcdir)/check_fuzzer.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
$(top_srcdir)/lib/ext2fs/bitops.h
journal.o: $(srcdir)/../debugfs/journal.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/../debugfs/journal.h \
- $(top_srcdir)/e2fsck/jfs_user.h $(top_srcdir)/e2fsck/e2fsck.h \
+ $(top_srcdir)/lib/ext2fs/jfs_user.h $(top_srcdir)/e2fsck/e2fsck.h \
$(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
@@ -891,7 +891,7 @@ journal.o: $(srcdir)/../debugfs/journal.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/fast_commit.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
$(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
$(top_srcdir)/lib/ext2fs/kernel-jbd.h
-revoke.o: $(srcdir)/../e2fsck/revoke.c $(srcdir)/../e2fsck/jfs_user.h \
+revoke.o: $(srcdir)/../e2fsck/revoke.c $(top_srcdir)/lib/ext2fs/jfs_user.h \
$(top_builddir)/lib/config.h $(top_builddir)/lib/dirpaths.h \
$(srcdir)/../e2fsck/e2fsck.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
@@ -905,7 +905,7 @@ revoke.o: $(srcdir)/../e2fsck/revoke.c $(srcdir)/../e2fsck/jfs_user.h \
$(top_srcdir)/lib/ext2fs/fast_commit.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
$(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/lib/ext2fs/compiler.h \
$(top_srcdir)/lib/ext2fs/kernel-jbd.h
-recovery.o: $(srcdir)/../e2fsck/recovery.c $(srcdir)/../e2fsck/jfs_user.h \
+recovery.o: $(srcdir)/../e2fsck/recovery.c $(top_srcdir)/lib/ext2fs/jfs_user.h \
$(top_builddir)/lib/config.h $(top_builddir)/lib/dirpaths.h \
$(srcdir)/../e2fsck/e2fsck.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
--
2.31.1
Powered by blists - more mailing lists