/*
* logdump.c --- dump the contents of the journal out to a file
*
- * Authro: Stephen C. Tweedie, 2001 <sct@redhat.com>
+ * Author: Stephen C. Tweedie, 2001 <sct@redhat.com>
* Copyright (C) 2001 Red Hat, Inc.
* Based on portions Copyright (C) 1994 Theodore Ts'o.
*
* License.
*/
+#include "config.h"
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
enum journal_location {JOURNAL_IS_INTERNAL, JOURNAL_IS_EXTERNAL};
-#define ANY_BLOCK ((blk_t) -1)
+#define ANY_BLOCK ((blk64_t) -1)
-int dump_all, dump_contents, dump_descriptors;
-blk_t block_to_dump, bitmap_to_dump, inode_block_to_dump;
-unsigned int group_to_dump, inode_offset_to_dump;
-ext2_ino_t inode_to_dump;
+static int dump_all, dump_super, dump_old, dump_contents, dump_descriptors;
+static blk64_t block_to_dump, bitmap_to_dump, inode_block_to_dump;
+static unsigned int group_to_dump, inode_offset_to_dump;
+static ext2_ino_t inode_to_dump;
struct journal_source
{
blocknr -= (be32_to_cpu((jsb)->s_maxlen) - \
be32_to_cpu((jsb)->s_first));
-void do_logdump(int argc, char **argv)
+void do_logdump(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
+ void *infop EXT2FS_ATTR((unused)))
{
int c;
int retval;
journal_source.fd = 0;
journal_source.file = 0;
dump_all = 0;
+ dump_old = 0;
dump_contents = 0;
+ dump_super = 0;
dump_descriptors = 1;
block_to_dump = ANY_BLOCK;
bitmap_to_dump = -1;
inode_to_dump = -1;
reset_getopt();
- while ((c = getopt (argc, argv, "ab:ci:f:s")) != EOF) {
+ while ((c = getopt (argc, argv, "ab:ci:f:OsS")) != EOF) {
switch (c) {
case 'a':
dump_all++;
inode_spec = optarg;
dump_descriptors = 0;
break;
+ case 'O':
+ dump_old++;
+ break;
case 's':
use_sb++;
break;
+ case 'S':
+ dump_super++;
+ break;
default:
goto print_usage;
}
(group_offset / inodes_per_block);
inode_offset_to_dump = ((group_offset % inodes_per_block)
* sizeof(struct ext2_inode));
- printf("Inode %u is at group %u, block %u, offset %u\n",
+ printf("Inode %u is at group %u, block %llu, offset %u\n",
inode_to_dump, inode_group,
inode_block_to_dump, inode_offset_to_dump);
}
memset(&journal_inode, 0, sizeof(struct ext2_inode));
memcpy(&journal_inode.i_block[0], es->s_jnl_blocks,
EXT2_N_BLOCKS*4);
+ journal_inode.i_size_high = es->s_jnl_blocks[15];
journal_inode.i_size = es->s_jnl_blocks[16];
journal_inode.i_links_count = 1;
journal_inode.i_mode = LINUX_S_IFREG | 0600;
return;
print_usage:
- fprintf(stderr, "%s: Usage: logdump [-acs] [-b<block>] [-i<filespec>]\n\t"
+ fprintf(stderr, "%s: Usage: logdump [-acsOS] [-b<block>] [-i<filespec>]\n\t"
"[-f<journal_file>] [output_file]\n", argv[0]);
}
static int read_journal_block(const char *cmd, struct journal_source *source,
- off_t offset, char *buf, int size,
- unsigned int *got)
+ ext2_loff_t offset, char *buf, unsigned int size)
{
int retval;
+ unsigned int got;
if (source->where == JOURNAL_IS_EXTERNAL) {
if (lseek(source->fd, offset, SEEK_SET) < 0) {
retval = errno;
- com_err(cmd, retval, "while seeking in reading journal");
- return retval;
+ goto seek_err;
}
retval = read(source->fd, buf, size);
- if (retval >= 0) {
- *got = retval;
- retval = 0;
- } else
+ if (retval < 0) {
retval = errno;
+ goto read_err;
+ }
+ got = retval;
+ retval = 0;
} else {
- retval = ext2fs_file_lseek(source->file, offset,
- EXT2_SEEK_SET, NULL);
+ retval = ext2fs_file_llseek(source->file, offset,
+ EXT2_SEEK_SET, NULL);
if (retval) {
+ seek_err:
com_err(cmd, retval, "while seeking in reading journal");
return retval;
}
-
- retval = ext2fs_file_read(source->file, buf, size, got);
+ retval = ext2fs_file_read(source->file, buf, size, &got);
+ if (retval) {
+ read_err:
+ com_err(cmd, retval, "while reading journal");
+ return retval;
+ }
}
-
- if (retval)
- com_err(cmd, retval, "while reading journal");
- else if (*got != (unsigned int) size) {
- com_err(cmd, 0, "short read (read %d, expected %d) "
- "while reading journal", *got, size);
+ if (got != size) {
+ com_err(cmd, 0, "short read (read %u, expected %u) "
+ "while reading journal", got, size);
retval = -1;
}
-
return retval;
}
char buf[8192];
journal_superblock_t *jsb;
unsigned int blocksize = 1024;
- unsigned int got;
int retval;
__u32 magic, sequence, blocktype;
journal_header_t *header;
-
tid_t transaction;
unsigned int blocknr = 0;
/* First, check to see if there's an ext2 superblock header */
- retval = read_journal_block(cmdname, source, 0,
- buf, 2048, &got);
+ retval = read_journal_block(cmdname, source, 0, buf, 2048);
if (retval)
return;
if ((be32_to_cpu(jsb->s_header.h_magic) != JFS_MAGIC_NUMBER) &&
(sb->s_magic == EXT2_SUPER_MAGIC) &&
- (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
+ ext2fs_has_feature_journal_dev(sb)) {
blocksize = EXT2_BLOCK_SIZE(sb);
blocknr = (blocksize == 1024) ? 2 : 1;
uuid_unparse(sb->s_uuid, jsb_buffer);
}
/* Next, read the journal superblock */
-
- retval = read_journal_block(cmdname, source, blocknr*blocksize,
- jsb_buffer, 1024, &got);
+ retval = read_journal_block(cmdname, source,
+ ((ext2_loff_t) blocknr) * blocksize,
+ jsb_buffer, 1024);
if (retval)
return;
+ if (dump_super) {
+ e2p_list_journal_super(out_file, jsb_buffer,
+ current_fs->blocksize, 0);
+ fputc('\n', out_file);
+ }
+
jsb = (journal_superblock_t *) jsb_buffer;
if (be32_to_cpu(jsb->s_header.h_magic) != JFS_MAGIC_NUMBER) {
fprintf(out_file,
fprintf(out_file, "Journal starts at block %u, transaction %u\n",
blocknr, transaction);
- if (!blocknr)
+ if (!blocknr) {
/* Empty journal, nothing to do. */
- return;
+ if (!dump_old)
+ return;
+ else
+ blocknr = 1;
+ }
while (1) {
retval = read_journal_block(cmdname, source,
- blocknr*blocksize, buf,
- blocksize, &got);
- if (retval || got != blocksize)
+ ((ext2_loff_t) blocknr) * blocksize,
+ buf, blocksize);
+ if (retval)
return;
header = (journal_header_t *) buf;
fprintf (out_file, "Found sequence %u (not %u) at "
"block %u: end of journal.\n",
sequence, transaction, blocknr);
- return;
+ if (!dump_old)
+ return;
}
if (dump_descriptors) {
}
}
+static inline size_t journal_super_tag_bytes(journal_superblock_t *jsb)
+{
+ size_t sz;
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JFS_FEATURE_INCOMPAT_CSUM_V3))
+ return sizeof(journal_block_tag3_t);
+
+ sz = sizeof(journal_block_tag_t);
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ sz += sizeof(__u16);
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JFS_FEATURE_INCOMPAT_64BIT))
+ return sz;
+
+ return sz - sizeof(__u32);
+}
static void dump_descriptor_block(FILE *out_file,
struct journal_source *source,
unsigned int *blockp, int blocksize,
tid_t transaction)
{
- int offset, tag_size = JBD_TAG_SIZE32;
+ int offset, tag_size, csum_size = 0;
char *tagp;
journal_block_tag_t *tag;
unsigned int blocknr;
__u32 tag_block;
__u32 tag_flags;
- if (be32_to_cpu(jsb->s_feature_incompat) & JFS_FEATURE_INCOMPAT_64BIT)
- tag_size = JBD_TAG_SIZE64;
-
+ tag_size = journal_super_tag_bytes(jsb);
offset = sizeof(journal_header_t);
blocknr = *blockp;
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JFS_FEATURE_INCOMPAT_CSUM_V3) ||
+ JSB_HAS_INCOMPAT_FEATURE(jsb, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ csum_size = sizeof(struct journal_block_tail);
+
if (dump_all)
fprintf(out_file, "Dumping descriptor block, sequence %u, at "
"block %u:\n", transaction, blocknr);
/* ... and if we have gone too far, then we've reached the
end of this block. */
- if (offset > blocksize)
+ if (offset > blocksize - csum_size)
break;
tag_block = be32_to_cpu(tag->t_blocknr);
- tag_flags = be32_to_cpu(tag->t_flags);
+ tag_flags = be16_to_cpu(tag->t_flags);
if (!(tag_flags & JFS_FLAG_SAME_UUID))
offset += 16;
{
int offset, max;
journal_revoke_header_t *header;
- unsigned int *entry, rblock;
+ unsigned long long rblock;
+ int tag_size = sizeof(__u32);
if (dump_all)
fprintf(out_file, "Dumping revoke block, sequence %u, at "
"block %u:\n", transaction, blocknr);
+ if (be32_to_cpu(jsb->s_feature_incompat) & JFS_FEATURE_INCOMPAT_64BIT)
+ tag_size = sizeof(__u64);
+
header = (journal_revoke_header_t *) buf;
offset = sizeof(journal_revoke_header_t);
max = be32_to_cpu(header->r_count);
while (offset < max) {
- entry = (unsigned int *) (buf + offset);
- rblock = be32_to_cpu(*entry);
+ if (tag_size == sizeof(__u32)) {
+ __u32 *entry = (__u32 *) (buf + offset);
+ rblock = be32_to_cpu(*entry);
+ } else {
+ __u64 *entry = (__u64 *) (buf + offset);
+ rblock = ext2fs_be64_to_cpu(*entry);
+ }
if (dump_all || rblock == block_to_dump) {
- fprintf(out_file, " Revoke FS block %u", rblock);
+ fprintf(out_file, " Revoke FS block %llu", rblock);
if (dump_all)
fprintf(out_file, "\n");
else
fprintf(out_file," at block %u, sequence %u\n",
blocknr, transaction);
}
- offset += 4;
+ offset += tag_size;
}
}
int blocksize,
tid_t transaction)
{
- unsigned int got;
int retval;
char buf[8192];
return;
retval = read_journal_block("logdump", source,
- blocksize * log_blocknr,
- buf, blocksize, &got);
+ ((ext2_loff_t) log_blocknr) * blocksize,
+ buf, blocksize);
if (retval)
return;
int offset;
super = current_fs->super;
- offset = ((fs_blocknr - super->s_first_data_block) %
+ offset = ((block_to_dump - super->s_first_data_block) %
super->s_blocks_per_group);
- fprintf(out_file, " (block bitmap for block %u: "
+ fprintf(out_file, " (block bitmap for block %llu: "
"block is %s)\n",
block_to_dump,
ext2fs_test_bit(offset, buf) ? "SET" : "CLEAR");
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff