/*
* dump_dir_block()
*
*/
void dump_dir_block(FILE *out, char *buf)
{
struct ocfs2_dir_entry *dirent;
int offset = 0;
int end = ocfs2_dir_trailer_blk_off(gbls.fs);
struct ocfs2_dir_block_trailer *trailer =
ocfs2_dir_trailer_from_block(gbls.fs, buf);
struct list_dir_opts ls_opts = {
.fs = gbls.fs,
.out = out,
};
if (!strncmp((char *)trailer->db_signature, OCFS2_DIR_TRAILER_SIGNATURE,
sizeof(trailer->db_signature)))
dump_dir_trailer(out, trailer);
else
end = gbls.fs->fs_blocksize;
fprintf(out, "\tEntries:\n");
while (offset < end) {
dirent = (struct ocfs2_dir_entry *) (buf + offset);
if (((offset + dirent->rec_len) > end) ||
(dirent->rec_len < 8) ||
((dirent->rec_len % 4) != 0) ||
(((dirent->name_len & 0xFF)+8) > dirent->rec_len)) {
/* Corrupted */
return;
}
dump_dir_entry(dirent, 0, offset, gbls.fs->fs_blocksize, NULL,
&ls_opts);
offset += dirent->rec_len;
}
}
static void dump_dx_entry(FILE *out, int i, struct ocfs2_dx_entry *dx_entry)
{
fprintf(out, "\t %-2d (0x%08x 0x%08x) %-13"PRIu64"\n",
i, dx_entry->dx_major_hash, dx_entry->dx_minor_hash,
(uint64_t)dx_entry->dx_dirent_blk);
}
/*
* detect_block()
*
*/
static enum dump_block_type detect_block (char *buf)
{
struct ocfs2_dinode *inode;
struct ocfs2_extent_block *extent;
struct ocfs2_group_desc *group;
struct ocfs2_dir_block_trailer *trailer;
enum dump_block_type ret = DUMP_BLOCK_UNKNOWN;
inode = (struct ocfs2_dinode *)buf;
if (!strncmp((char *)inode->i_signature, OCFS2_INODE_SIGNATURE,
sizeof(inode->i_signature))) {
ret = DUMP_BLOCK_INODE;
goto bail;
}
extent = (struct ocfs2_extent_block *)buf;
if (!strncmp((char *)extent->h_signature, OCFS2_EXTENT_BLOCK_SIGNATURE,
sizeof(extent->h_signature))) {
ret = DUMP_BLOCK_EXTENT_BLOCK;
goto bail;
}
group = (struct ocfs2_group_desc *)buf;
if (!strncmp((char *)group->bg_signature, OCFS2_GROUP_DESC_SIGNATURE,
sizeof(group->bg_signature))) {
ret = DUMP_BLOCK_GROUP_DESCRIPTOR;
goto bail;
}
trailer = ocfs2_dir_trailer_from_block(gbls.fs, buf);
if (!strncmp((char *)trailer->db_signature, OCFS2_DIR_TRAILER_SIGNATURE,
sizeof(trailer->db_signature))) {
ret = DUMP_BLOCK_DIR_BLOCK;
goto bail;
}
bail:
return ret;
} /* detect_block */
/*
* dump_jbd_metadata()
*
*/
void dump_jbd_metadata(FILE *out, enum ocfs2_block_type type, char *buf,
uint64_t blknum)
{
struct ocfs2_dir_block_trailer *trailer;
struct ocfs2_xattr_block *xb;
struct ocfs2_xattr_header *xh;
struct ocfs2_refcount_block *rb;
struct ocfs2_dx_root_block *dx_root;
struct ocfs2_dx_leaf *dx_leaf;
struct ocfs2_dinode *di;
struct ocfs2_extent_block *eb;
fprintf(out, "\tBlock %"PRIu64": ", blknum);
switch (type) {
case OCFS2_BLOCK_INODE:
case OCFS2_BLOCK_SUPERBLOCK:
fprintf(out, "Inode\n");
di = (struct ocfs2_dinode *)buf;
ocfs2_swap_inode_to_cpu(gbls.fs, di);
dump_inode(out, di);
if (di->i_flags & OCFS2_LOCAL_ALLOC_FL)
dump_local_alloc(out, &(di->id2.i_lab));
else if (di->i_flags & OCFS2_CHAIN_FL)
dump_chain_list(out, &(di->id2.i_chain));
else if (S_ISLNK(di->i_mode) && !di->i_clusters)
dump_fast_symlink(out, (char *)di->id2.i_symlink);
else if (di->i_flags & OCFS2_DEALLOC_FL)
dump_truncate_log(out, &(di->id2.i_dealloc));
else if (!(di->i_dyn_features & OCFS2_INLINE_DATA_FL))
dump_extent_list(out, &(di->id2.i_list));
fprintf(out, "\n");
break;
case OCFS2_BLOCK_EXTENT_BLOCK:
fprintf(out, "Extent\n");
eb = (struct ocfs2_extent_block *)buf;
ocfs2_swap_extent_block_to_cpu(gbls.fs, eb);
dump_extent_block(out, eb);
dump_extent_list(out, &(eb->h_list));
fprintf(out, "\n");
break;
case OCFS2_BLOCK_GROUP_DESCRIPTOR:
fprintf(out, "Group\n");
ocfs2_swap_group_desc_to_cpu(gbls.fs,
(struct ocfs2_group_desc *)buf);
dump_group_descriptor(out, (struct ocfs2_group_desc *)buf, 0);
fprintf(out, "\n");
break;
case OCFS2_BLOCK_DIR_BLOCK:
fprintf(out, "Dirblock\n");
/*
* We know there's a trailer, because that's how it
* was detected
*/
ocfs2_swap_dir_entries_to_cpu(buf,
ocfs2_dir_trailer_blk_off(gbls.fs));
trailer = ocfs2_dir_trailer_from_block(gbls.fs, buf);
ocfs2_swap_dir_trailer(trailer);
dump_dir_block(out, buf);
fprintf(out, "\n");
break;
case OCFS2_BLOCK_XATTR:
fprintf(out, "Xattr\n");
xb = (struct ocfs2_xattr_block *)buf;
ocfs2_swap_xattr_block_to_cpu(gbls.fs, xb);
if (!(xb->xb_flags & OCFS2_XATTR_INDEXED)) {
xh = &xb->xb_attrs.xb_header;
dump_xattr(out, xh);
}
fprintf(out, "\n");
break;
case OCFS2_BLOCK_REFCOUNT:
fprintf(out, "Refcount\n");
rb = (struct ocfs2_refcount_block *)buf;
ocfs2_swap_refcount_block_to_cpu(gbls.fs, rb);
dump_refcount_block(out, rb);
fprintf(out, "\n");
break;
case OCFS2_BLOCK_DXROOT:
fprintf(out, "DxRoot\n");
dx_root = (struct ocfs2_dx_root_block *)buf;
ocfs2_swap_dx_root_to_cpu(gbls.fs, dx_root);
dump_dx_root(out, dx_root);
fprintf(out, "\n");
break;
case OCFS2_BLOCK_DXLEAF:
fprintf(out, "DxLeaf\n");
dx_leaf = (struct ocfs2_dx_leaf *)buf;
ocfs2_swap_dx_leaf_to_cpu(dx_leaf);
dump_dx_leaf(out, dx_leaf);
fprintf(out, "\n");
break;
default:
fprintf(out, "TODO\n\n");
break;
}
return ;
}