/*
* 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.
*
#include "debugfs.h"
#include "blkid/blkid.h"
#include "jfs_user.h"
+#include "ext2fs/fast_commit.h"
#include <uuid/uuid.h>
enum journal_location {JOURNAL_IS_INTERNAL, JOURNAL_IS_EXTERNAL};
#define ANY_BLOCK ((blk64_t) -1)
-static int dump_all, dump_contents, dump_descriptors;
+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;
unsigned int, unsigned int, unsigned int,
int, tid_t);
+static void dump_fc_block(FILE *out_file, char *buf, int blocksize,
+ int transaction, int *fc_done, int dump_old);
+
static void do_hexdump (FILE *, char *, int);
#define WRAP(jsb, blocknr) \
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;
}
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, unsigned int size)
+ ext2_loff_t offset, char *buf, unsigned int size)
{
int retval;
unsigned int got;
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");
static const char *type_to_name(int btype)
{
switch (btype) {
- case JFS_DESCRIPTOR_BLOCK:
+ case JBD2_DESCRIPTOR_BLOCK:
return "descriptor block";
- case JFS_COMMIT_BLOCK:
+ case JBD2_COMMIT_BLOCK:
return "commit block";
- case JFS_SUPERBLOCK_V1:
+ case JBD2_SUPERBLOCK_V1:
return "V1 superblock";
- case JFS_SUPERBLOCK_V2:
+ case JBD2_SUPERBLOCK_V2:
return "V2 superblock";
- case JFS_REVOKE_BLOCK:
+ case JBD2_REVOKE_BLOCK:
return "revoke table";
}
return "unrecognised type";
int retval;
__u32 magic, sequence, blocktype;
journal_header_t *header;
-
tid_t transaction;
unsigned int blocknr = 0;
+ int fc_done;
/* First, check to see if there's an ext2 superblock header */
retval = read_journal_block(cmdname, source, 0, buf, 2048);
ext2fs_swap_super(sb);
#endif
- if ((be32_to_cpu(jsb->s_header.h_magic) != JFS_MAGIC_NUMBER) &&
+ if ((be32_to_cpu(jsb->s_header.h_magic) != JBD2_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,
+ 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) {
+ if (be32_to_cpu(jsb->s_header.h_magic) != JBD2_MAGIC_NUMBER) {
fprintf(out_file,
"Journal superblock magic number invalid!\n");
return;
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)
+ goto fc;
+ else
+ blocknr = 1;
+ }
while (1) {
retval = read_journal_block(cmdname, source,
- blocknr*blocksize, buf,
- blocksize);
+ ((ext2_loff_t) blocknr) * blocksize,
+ buf, blocksize);
if (retval)
- return;
+ break;
header = (journal_header_t *) buf;
sequence = be32_to_cpu(header->h_sequence);
blocktype = be32_to_cpu(header->h_blocktype);
- if (magic != JFS_MAGIC_NUMBER) {
+ if (magic != JBD2_MAGIC_NUMBER) {
fprintf (out_file, "No magic number at block %u: "
"end of journal.\n", blocknr);
- return;
+ break;
}
if (sequence != transaction) {
fprintf (out_file, "Found sequence %u (not %u) at "
"block %u: end of journal.\n",
sequence, transaction, blocknr);
- return;
+ if (!dump_old)
+ break;
}
if (dump_descriptors) {
}
switch (blocktype) {
- case JFS_DESCRIPTOR_BLOCK:
+ case JBD2_DESCRIPTOR_BLOCK:
dump_descriptor_block(out_file, source, buf, jsb,
&blocknr, blocksize,
transaction);
continue;
- case JFS_COMMIT_BLOCK:
+ case JBD2_COMMIT_BLOCK:
transaction++;
blocknr++;
WRAP(jsb, blocknr);
continue;
- case JFS_REVOKE_BLOCK:
+ case JBD2_REVOKE_BLOCK:
dump_revoke_block(out_file, buf, jsb,
blocknr, blocksize,
transaction);
default:
fprintf (out_file, "Unexpected block type %u at "
"block %u.\n", blocktype, blocknr);
- return;
+ break;
}
}
+
+fc:
+ blocknr = be32_to_cpu(jsb->s_maxlen) - jbd2_journal_get_num_fc_blks(jsb) + 1;
+ while (blocknr <= be32_to_cpu(jsb->s_maxlen)) {
+ retval = read_journal_block(cmdname, source,
+ ((ext2_loff_t) blocknr) * blocksize,
+ buf, blocksize);
+ if (retval)
+ return;
+
+ dump_fc_block(out_file, buf, blocksize, transaction, &fc_done,
+ dump_old);
+ if (!dump_old && fc_done)
+ break;
+ blocknr++;
+ }
+}
+
+static inline size_t journal_super_tag_bytes(journal_superblock_t *jsb)
+{
+ size_t sz;
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_CSUM_V3))
+ return sizeof(journal_block_tag3_t);
+
+ sz = sizeof(journal_block_tag_t);
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ sz += sizeof(__u16);
+
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_64BIT))
+ return sz;
+
+ return sz - sizeof(__u32);
}
+static void dump_fc_block(FILE *out_file, char *buf, int blocksize,
+ int transaction, int *fc_done, int dump_old)
+{
+ struct ext4_fc_tl *tl;
+ struct ext4_fc_head *head;
+ struct ext4_fc_add_range *add_range;
+ struct ext4_fc_del_range *del_range;
+ struct ext4_fc_dentry_info *dentry_info;
+ struct ext4_fc_tail *tail;
+ struct ext3_extent *ex;
+
+ *fc_done = 0;
+ fc_for_each_tl(buf, buf + blocksize, tl) {
+ switch (le16_to_cpu(tl->fc_tag)) {
+ case EXT4_FC_TAG_ADD_RANGE:
+ add_range =
+ (struct ext4_fc_add_range *)ext4_fc_tag_val(tl);
+ ex = (struct ext3_extent *)add_range->fc_ex;
+ fprintf(out_file,
+ "tag %s, inode %d, lblk %d, pblk %ld, len %d\n",
+ tag2str(tl->fc_tag),
+ le32_to_cpu(add_range->fc_ino),
+ le32_to_cpu(ex->ee_block),
+ le32_to_cpu(ex->ee_start) +
+ (((__u64) le16_to_cpu(ex->ee_start_hi)) << 32),
+ le16_to_cpu(ex->ee_len) > EXT_INIT_MAX_LEN ?
+ le16_to_cpu(ex->ee_len) - EXT_INIT_MAX_LEN :
+ le16_to_cpu(ex->ee_len));
+ break;
+ case EXT4_FC_TAG_DEL_RANGE:
+ del_range =
+ (struct ext4_fc_del_range *)ext4_fc_tag_val(tl);
+ fprintf(out_file, "tag %s, inode %d, lblk %d, len %d\n",
+ tag2str(tl->fc_tag),
+ le32_to_cpu(del_range->fc_ino),
+ le32_to_cpu(del_range->fc_lblk),
+ le32_to_cpu(del_range->fc_len));
+ break;
+ case EXT4_FC_TAG_LINK:
+ case EXT4_FC_TAG_UNLINK:
+ case EXT4_FC_TAG_CREAT:
+ dentry_info =
+ (struct ext4_fc_dentry_info *)
+ ext4_fc_tag_val(tl);
+ fprintf(out_file,
+ "tag %s, parent %d, ino %d, name \"%s\"\n",
+ tag2str(tl->fc_tag),
+ le32_to_cpu(dentry_info->fc_parent_ino),
+ le32_to_cpu(dentry_info->fc_ino),
+ dentry_info->fc_dname);
+ break;
+ case EXT4_FC_TAG_INODE:
+ fprintf(out_file, "tag %s, inode %d\n",
+ tag2str(tl->fc_tag),
+ le32_to_cpu(((struct ext4_fc_inode *)
+ ext4_fc_tag_val(tl))->fc_ino));
+ break;
+ case EXT4_FC_TAG_PAD:
+ fprintf(out_file, "tag %s\n", tag2str(tl->fc_tag));
+ break;
+ case EXT4_FC_TAG_TAIL:
+ tail = (struct ext4_fc_tail *)ext4_fc_tag_val(tl);
+ fprintf(out_file, "tag %s, tid %d\n",
+ tag2str(tl->fc_tag),
+ le32_to_cpu(tail->fc_tid));
+ if (!dump_old &&
+ le32_to_cpu(tail->fc_tid) < transaction) {
+ *fc_done = 1;
+ return;
+ }
+ break;
+ case EXT4_FC_TAG_HEAD:
+ fprintf(out_file, "\n*** Fast Commit Area ***\n");
+ head = (struct ext4_fc_head *)ext4_fc_tag_val(tl);
+ fprintf(out_file, "tag %s, features 0x%x, tid %d\n",
+ tag2str(tl->fc_tag),
+ le32_to_cpu(head->fc_features),
+ le32_to_cpu(head->fc_tid));
+ if (!dump_old &&
+ le32_to_cpu(head->fc_tid) < transaction) {
+ *fc_done = 1;
+ return;
+ }
+ break;
+ default:
+ *fc_done = 1;
+ break;
+ }
+ }
+}
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, JBD2_FEATURE_INCOMPAT_CSUM_V3) ||
+ JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ csum_size = sizeof(struct jbd2_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 = be16_to_cpu(tag->t_flags);
- if (!(tag_flags & JFS_FLAG_SAME_UUID))
+ if (!(tag_flags & JBD2_FLAG_SAME_UUID))
offset += 16;
dump_metadata_block(out_file, source, jsb,
++blocknr;
WRAP(jsb, blocknr);
- } while (!(tag_flags & JFS_FLAG_LAST_TAG));
+ } while (!(tag_flags & JBD2_FLAG_LAST_TAG));
*blockp = blocknr;
}
tid_t transaction)
{
int offset, max;
- journal_revoke_header_t *header;
- unsigned int *entry, rblock;
+ jbd2_journal_revoke_header_t *header;
+ 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);
- header = (journal_revoke_header_t *) buf;
- offset = sizeof(journal_revoke_header_t);
+ if (be32_to_cpu(jsb->s_feature_incompat) & JBD2_FEATURE_INCOMPAT_64BIT)
+ tag_size = sizeof(__u64);
+
+ header = (jbd2_journal_revoke_header_t *) buf;
+ offset = sizeof(jbd2_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;
}
}
return;
retval = read_journal_block("logdump", source,
- blocksize * log_blocknr,
+ ((ext2_loff_t) log_blocknr) * blocksize,
buf, blocksize);
if (retval)
return;
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff