/*
* 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"
+#if __GNUC_PREREQ (4, 6)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+#include "ext2fs/fast_commit.h"
+#if __GNUC_PREREQ (4, 6)
+#pragma GCC diagnostic pop
+#endif
#include <uuid/uuid.h>
enum journal_location {JOURNAL_IS_INTERNAL, JOURNAL_IS_EXTERNAL};
static void dump_descriptor_block(FILE *, struct journal_source *,
char *, journal_superblock_t *,
- unsigned int *, int, tid_t);
+ unsigned int *, int, __u32, tid_t);
static void dump_revoke_block(FILE *, char *, journal_superblock_t *,
unsigned int, int, tid_t);
unsigned int, unsigned int, unsigned int,
int, tid_t);
+static void dump_fc_block(FILE *out_file, char *buf, int blocksize,
+ tid_t transaction, int *fc_done);
+
static void do_hexdump (FILE *, char *, int);
-#define WRAP(jsb, blocknr) \
- if (blocknr >= be32_to_cpu((jsb)->s_maxlen)) \
- blocknr -= (be32_to_cpu((jsb)->s_maxlen) - \
- be32_to_cpu((jsb)->s_first));
+#define WRAP(jsb, blocknr, maxlen) \
+ if (blocknr >= (maxlen)) \
+ blocknr -= (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;
char *inode_spec = NULL;
char *journal_fn = NULL;
- int journal_fd = 0;
+ int journal_fd = -1;
int use_sb = 0;
ext2_ino_t journal_inum;
struct ext2_inode journal_inode;
- ext2_file_t journal_file;
+ ext2_file_t journal_file = NULL;
char *tmp;
struct journal_source journal_source;
struct ext2_super_block *es = NULL;
goto print_usage;
}
- if (current_fs)
- es = current_fs->super;
-
if (inode_spec) {
int inode_group, group_offset, inodes_per_block;
if (!inode_to_dump)
return;
+ es = current_fs->super;
inode_group = ((inode_to_dump - 1)
/ es->s_inodes_per_group);
group_offset = ((inode_to_dump - 1)
* sizeof(struct ext2_inode));
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);
+ (unsigned long long) inode_block_to_dump,
+ inode_offset_to_dump);
}
if (optind == argc) {
if (!out_file) {
com_err(argv[0], errno, "while opening %s for logdump",
out_fn);
- goto errout;
+ goto cleanup;
}
}
- if (block_to_dump != ANY_BLOCK && current_fs != NULL) {
+ if (block_to_dump != ANY_BLOCK) {
+ if (check_fs_open(argv[0]))
+ goto cleanup;
+ es = current_fs->super;
group_to_dump = ((block_to_dump -
es->s_first_data_block)
/ es->s_blocks_per_group);
bitmap_to_dump = ext2fs_block_bitmap_loc(current_fs, group_to_dump);
}
- if (!journal_fn && check_fs_open(argv[0]))
- goto errout;
-
if (journal_fn) {
/* Set up to read journal from a regular file somewhere */
journal_fd = open(journal_fn, O_RDONLY, 0);
if (journal_fd < 0) {
com_err(argv[0], errno, "while opening %s for logdump",
journal_fn);
- goto errout;
+ goto cleanup;
}
-
journal_source.where = JOURNAL_IS_EXTERNAL;
journal_source.fd = journal_fd;
- } else if ((journal_inum = es->s_journal_inum)) {
+ dump_journal(argv[0], out_file, &journal_source);
+ goto cleanup;
+
+ }
+ if (check_fs_open(argv[0]))
+ goto cleanup;
+ es = current_fs->super;
+
+ if ((journal_inum = es->s_journal_inum)) {
if (use_sb) {
if (es->s_jnl_backup_type != EXT3_JNL_BACKUP_BLOCKS) {
com_err(argv[0], 0,
"no journal backup in super block\n");
- goto errout;
+ goto cleanup;
}
memset(&journal_inode, 0, sizeof(struct ext2_inode));
memcpy(&journal_inode.i_block[0], es->s_jnl_blocks,
} else {
if (debugfs_read_inode(journal_inum, &journal_inode,
argv[0]))
- goto errout;
+ goto cleanup;
}
retval = ext2fs_file_open2(current_fs, journal_inum,
&journal_inode, 0, &journal_file);
if (retval) {
com_err(argv[0], retval, "while opening ext2 file");
- goto errout;
+ goto cleanup;
}
journal_source.where = JOURNAL_IS_INTERNAL;
journal_source.file = journal_file;
journal_fn = blkid_devno_to_devname(es->s_journal_dev);
if (!journal_fn) {
com_err(argv[0], 0, "filesystem has no journal");
- goto errout;
+ goto cleanup;
}
journal_fd = open(journal_fn, O_RDONLY, 0);
if (journal_fd < 0) {
com_err(argv[0], errno, "while opening %s for logdump",
journal_fn);
free(journal_fn);
- goto errout;
+ goto cleanup;
}
fprintf(out_file, "Using external journal found at %s\n",
journal_fn);
journal_source.where = JOURNAL_IS_EXTERNAL;
journal_source.fd = journal_fd;
}
-
dump_journal(argv[0], out_file, &journal_source);
-
- if (journal_source.where == JOURNAL_IS_INTERNAL)
- ext2fs_file_close(journal_file);
- else
+cleanup:
+ if (journal_fd >= 0)
close(journal_fd);
-
-errout:
+ if (journal_file)
+ ext2fs_file_close(journal_file);
if (out_file && (out_file != stdout))
fclose(out_file);
return;
print_usage:
- fprintf(stderr, "%s: Usage: logdump [-acsO] [-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 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";
{
struct ext2_super_block *sb;
char jsb_buffer[1024];
- char buf[8192];
+ char buf[EXT2_MAX_BLOCK_SIZE];
journal_superblock_t *jsb;
unsigned int blocksize = 1024;
int retval;
journal_header_t *header;
tid_t transaction;
unsigned int blocknr = 0;
+ int fc_done;
+ __u64 total_len;
+ __u32 maxlen;
/* 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) &&
ext2fs_has_feature_journal_dev(sb)) {
blocksize = EXT2_BLOCK_SIZE(sb);
}
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;
}
blocksize = be32_to_cpu(jsb->s_blocksize);
+ if ((current_fs && (blocksize != current_fs->blocksize)) ||
+ (!current_fs && (!blocksize || (blocksize & (blocksize - 1)) ||
+ (blocksize > EXT2_MAX_BLOCK_SIZE)))) {
+ fprintf(out_file,
+ "Journal block size invalid: %u (%u)\n",
+ be32_to_cpu(jsb->s_blocksize), blocksize);
+ return;
+ }
transaction = be32_to_cpu(jsb->s_sequence);
blocknr = be32_to_cpu(jsb->s_start);
+ if (source->where == JOURNAL_IS_INTERNAL) {
+ retval = ext2fs_file_get_lsize(source->file, &total_len);
+ if (retval) {
+ stat_err:
+ com_err("dump_journal", retval,
+ "while getting journal inode size");
+ return;
+ }
+ total_len /= blocksize;
+ } else {
+ struct stat st;
+
+ if (fstat(source->fd, &st) < 0)
+ goto stat_err;
+ total_len = st.st_size / blocksize;
+ }
+ maxlen = be32_to_cpu(jsb->s_maxlen);
+ if (maxlen > total_len)
+ maxlen = total_len;
fprintf(out_file, "Journal starts at block %u, transaction %u\n",
blocknr, transaction);
if (!blocknr) {
/* Empty journal, nothing to do. */
if (!dump_old)
- return;
+ goto fc;
else
blocknr = 1;
}
((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) {
"block %u: end of journal.\n",
sequence, transaction, blocknr);
if (!dump_old)
- return;
+ break;
}
if (dump_descriptors) {
}
switch (blocktype) {
- case JFS_DESCRIPTOR_BLOCK:
+ case JBD2_DESCRIPTOR_BLOCK:
dump_descriptor_block(out_file, source, buf, jsb,
- &blocknr, blocksize,
+ &blocknr, blocksize, maxlen,
transaction);
continue;
- case JFS_COMMIT_BLOCK:
+ case JBD2_COMMIT_BLOCK:
transaction++;
blocknr++;
- WRAP(jsb, blocknr);
+ WRAP(jsb, blocknr, maxlen);
continue;
- case JFS_REVOKE_BLOCK:
+ case JBD2_REVOKE_BLOCK:
dump_revoke_block(out_file, buf, jsb,
blocknr, blocksize,
transaction);
blocknr++;
- WRAP(jsb, blocknr);
+ WRAP(jsb, blocknr, maxlen);
continue;
default:
fprintf (out_file, "Unexpected block type %u at "
"block %u.\n", blocktype, blocknr);
- return;
+ break;
}
}
+
+fc:
+ blocknr = maxlen - jbd2_journal_get_num_fc_blks(jsb) + 1;
+ while (blocknr <= 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);
+ 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, JFS_FEATURE_INCOMPAT_CSUM_V3))
+ 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, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ if (JSB_HAS_INCOMPAT_FEATURE(jsb, JBD2_FEATURE_INCOMPAT_CSUM_V2))
sz += sizeof(__u16);
- if (JSB_HAS_INCOMPAT_FEATURE(jsb, JFS_FEATURE_INCOMPAT_64BIT))
+ 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,
+ tid_t transaction, int *fc_done)
+{
+ 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;
+ __u8 *cur, *val;
+
+ *fc_done = 0;
+ for (cur = (__u8 *)buf; cur < (__u8 *)buf + blocksize;
+ cur = cur + sizeof(tl) + le16_to_cpu(tl.fc_len)) {
+ memcpy(&tl, cur, sizeof(tl));
+ val = cur + sizeof(tl);
+
+ switch (le16_to_cpu(tl.fc_tag)) {
+ case EXT4_FC_TAG_ADD_RANGE:
+ add_range = (struct ext4_fc_add_range *)val;
+ ex = (struct ext3_extent *)add_range->fc_ex;
+ fprintf(out_file,
+ "tag %s, inode %d, lblk %u, pblk %llu, len %lu\n",
+ tag2str(tl.fc_tag),
+ le32_to_cpu(add_range->fc_ino),
+ le32_to_cpu(ex->ee_block),
+ le32_to_cpu(ex->ee_start) +
+ (((unsigned long long) 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 *)val;
+ 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 *)val;
+ 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 *)val)->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 *)val;
+ 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 *)val;
+ 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,
char *buf,
journal_superblock_t *jsb,
unsigned int *blockp, int blocksize,
+ __u32 maxlen,
tid_t transaction)
{
int offset, tag_size, csum_size = 0;
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 (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);
++blocknr;
- WRAP(jsb, blocknr);
+ WRAP(jsb, blocknr, maxlen);
do {
/* Work out the location of the current tag, and skip to
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,
transaction);
++blocknr;
- WRAP(jsb, blocknr);
+ WRAP(jsb, blocknr, maxlen);
- } while (!(tag_flags & JFS_FLAG_LAST_TAG));
+ } while (!(tag_flags & JBD2_FLAG_LAST_TAG));
*blockp = blocknr;
}
int blocksize EXT2FS_ATTR((unused)),
tid_t transaction)
{
- int offset, max;
- journal_revoke_header_t *header;
+ unsigned int offset, max;
+ jbd2_journal_revoke_header_t *header;
unsigned long long rblock;
int tag_size = sizeof(__u32);
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)
+ if (be32_to_cpu(jsb->s_feature_incompat) & JBD2_FEATURE_INCOMPAT_64BIT)
tag_size = sizeof(__u64);
- header = (journal_revoke_header_t *) buf;
- offset = sizeof(journal_revoke_header_t);
+ header = (jbd2_journal_revoke_header_t *) buf;
+ offset = sizeof(jbd2_journal_revoke_header_t);
max = be32_to_cpu(header->r_count);
+ if (max > be32_to_cpu(jsb->s_blocksize)) {
+ fprintf(out_file, "Revoke block's r_count invalid: %u\b",
+ max);
+ max = be32_to_cpu(jsb->s_blocksize);
+ }
while (offset < max) {
if (tag_size == sizeof(__u32)) {
rblock = ext2fs_be64_to_cpu(*entry);
}
if (dump_all || rblock == block_to_dump) {
- fprintf(out_file, " Revoke FS block %llu", rblock);
+ fprintf(out_file, " Revoke FS block %llu",
+ (unsigned long long) rblock);
if (dump_all)
fprintf(out_file, "\n");
else
tid_t transaction)
{
int retval;
- char buf[8192];
+ char buf[EXT2_MAX_BLOCK_SIZE];
if (!(dump_all
|| (fs_blocknr == block_to_dump)
fprintf(out_file, " (block bitmap for block %llu: "
"block is %s)\n",
- block_to_dump,
+ (unsigned long long) block_to_dump,
ext2fs_test_bit(offset, buf) ? "SET" : "CLEAR");
}
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff