| Message ID | 20230523090050.373545-4-chandan.babu@oracle.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | Metadump v2 | expand |
On Tue, May 23, 2023 at 02:30:29PM +0530, Chandan Babu R wrote: > This commit collects all state tracking variables in a new "struct metadump" > structure. I think this commit message needs to capture the reasons for /why/ all these global variables are being pulled into a struct definition that itself is used once to define a global variable. (Changes look ok, at least) --D > Signed-off-by: Chandan Babu R <chandan.babu@oracle.com> > --- > db/metadump.c | 459 +++++++++++++++++++++++++++----------------------- > 1 file changed, 244 insertions(+), 215 deletions(-) > > diff --git a/db/metadump.c b/db/metadump.c > index 6bcfd5bba..806cdfd68 100644 > --- a/db/metadump.c > +++ b/db/metadump.c > @@ -40,25 +40,27 @@ static const cmdinfo_t metadump_cmd = > N_("[-a] [-e] [-g] [-m max_extent] [-w] [-o] filename"), > N_("dump metadata to a file"), metadump_help }; > > -static FILE *outf; /* metadump file */ > - > -static xfs_metablock_t *metablock; /* header + index + buffers */ > -static __be64 *block_index; > -static char *block_buffer; > - > -static int num_indices; > -static int cur_index; > - > -static xfs_ino_t cur_ino; > - > -static int show_progress = 0; > -static int stop_on_read_error = 0; > -static int max_extent_size = DEFAULT_MAX_EXT_SIZE; > -static int obfuscate = 1; > -static int zero_stale_data = 1; > -static int show_warnings = 0; > -static int progress_since_warning = 0; > -static bool stdout_metadump; > +static struct metadump { > + int version; > + int show_progress; > + int stop_on_read_error; > + int max_extent_size; > + int show_warnings; > + int obfuscate; > + int zero_stale_data; > + int progress_since_warning; > + bool dirty_log; > + bool stdout_metadump; > + xfs_ino_t cur_ino; > + /* Metadump file */ > + FILE *outf; > + /* header + index + buffers */ > + struct xfs_metablock *metablock; > + __be64 *block_index; > + char *block_buffer; > + int num_indices; > + int cur_index; > +} metadump; > > void > metadump_init(void) > @@ -98,9 +100,9 @@ print_warning(const char *fmt, ...) > va_end(ap); > buf[sizeof(buf)-1] = '\0'; > > - fprintf(stderr, "%s%s: %s\n", progress_since_warning ? "\n" : "", > - progname, buf); > - progress_since_warning = 0; > + fprintf(stderr, "%s%s: %s\n", > + metadump.progress_since_warning ? "\n" : "", progname, buf); > + metadump.progress_since_warning = 0; > } > > static void > @@ -118,10 +120,10 @@ print_progress(const char *fmt, ...) > va_end(ap); > buf[sizeof(buf)-1] = '\0'; > > - f = stdout_metadump ? stderr : stdout; > + f = metadump.stdout_metadump ? stderr : stdout; > fprintf(f, "\r%-59s", buf); > fflush(f); > - progress_since_warning = 1; > + metadump.progress_since_warning = 1; > } > > /* > @@ -136,17 +138,19 @@ print_progress(const char *fmt, ...) > static int > write_index(void) > { > + struct xfs_metablock *metablock = metadump.metablock; > /* > * write index block and following data blocks (streaming) > */ > - metablock->mb_count = cpu_to_be16(cur_index); > - if (fwrite(metablock, (cur_index + 1) << BBSHIFT, 1, outf) != 1) { > + metablock->mb_count = cpu_to_be16(metadump.cur_index); > + if (fwrite(metablock, (metadump.cur_index + 1) << BBSHIFT, 1, > + metadump.outf) != 1) { > print_warning("error writing to target file"); > return -1; > } > > - memset(block_index, 0, num_indices * sizeof(__be64)); > - cur_index = 0; > + memset(metadump.block_index, 0, metadump.num_indices * sizeof(__be64)); > + metadump.cur_index = 0; > return 0; > } > > @@ -163,9 +167,10 @@ write_buf_segment( > int ret; > > for (i = 0; i < len; i++, off++, data += BBSIZE) { > - block_index[cur_index] = cpu_to_be64(off); > - memcpy(&block_buffer[cur_index << BBSHIFT], data, BBSIZE); > - if (++cur_index == num_indices) { > + metadump.block_index[metadump.cur_index] = cpu_to_be64(off); > + memcpy(&metadump.block_buffer[metadump.cur_index << BBSHIFT], > + data, BBSIZE); > + if (++metadump.cur_index == metadump.num_indices) { > ret = write_index(); > if (ret) > return -EIO; > @@ -388,11 +393,11 @@ scan_btree( > if (iocur_top->data == NULL) { > print_warning("cannot read %s block %u/%u", typtab[btype].name, > agno, agbno); > - rval = !stop_on_read_error; > + rval = !metadump.stop_on_read_error; > goto pop_out; > } > > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > zero_btree_block(iocur_top->data, btype); > iocur_top->need_crc = 1; > } > @@ -446,7 +451,7 @@ scanfunc_freesp( > > numrecs = be16_to_cpu(block->bb_numrecs); > if (numrecs > mp->m_alloc_mxr[1]) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid numrecs (%u) in %s block %u/%u", > numrecs, typtab[btype].name, agno, agbno); > return 1; > @@ -455,7 +460,7 @@ scanfunc_freesp( > pp = XFS_ALLOC_PTR_ADDR(mp, block, 1, mp->m_alloc_mxr[1]); > for (i = 0; i < numrecs; i++) { > if (!valid_bno(agno, be32_to_cpu(pp[i]))) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u/%u) " > "in %s block %u/%u", > agno, be32_to_cpu(pp[i]), > @@ -482,13 +487,13 @@ copy_free_bno_btree( > > /* validate root and levels before processing the tree */ > if (root == 0 || root > mp->m_sb.sb_agblocks) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u) in bnobt " > "root in agf %u", root, agno); > return 1; > } > if (levels > mp->m_alloc_maxlevels) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid level (%u) in bnobt root " > "in agf %u", levels, agno); > return 1; > @@ -510,13 +515,13 @@ copy_free_cnt_btree( > > /* validate root and levels before processing the tree */ > if (root == 0 || root > mp->m_sb.sb_agblocks) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u) in cntbt " > "root in agf %u", root, agno); > return 1; > } > if (levels > mp->m_alloc_maxlevels) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid level (%u) in cntbt root " > "in agf %u", levels, agno); > return 1; > @@ -543,7 +548,7 @@ scanfunc_rmapbt( > > numrecs = be16_to_cpu(block->bb_numrecs); > if (numrecs > mp->m_rmap_mxr[1]) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid numrecs (%u) in %s block %u/%u", > numrecs, typtab[btype].name, agno, agbno); > return 1; > @@ -552,7 +557,7 @@ scanfunc_rmapbt( > pp = XFS_RMAP_PTR_ADDR(block, 1, mp->m_rmap_mxr[1]); > for (i = 0; i < numrecs; i++) { > if (!valid_bno(agno, be32_to_cpu(pp[i]))) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u/%u) " > "in %s block %u/%u", > agno, be32_to_cpu(pp[i]), > @@ -582,13 +587,13 @@ copy_rmap_btree( > > /* validate root and levels before processing the tree */ > if (root == 0 || root > mp->m_sb.sb_agblocks) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u) in rmapbt " > "root in agf %u", root, agno); > return 1; > } > if (levels > mp->m_rmap_maxlevels) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid level (%u) in rmapbt root " > "in agf %u", levels, agno); > return 1; > @@ -615,7 +620,7 @@ scanfunc_refcntbt( > > numrecs = be16_to_cpu(block->bb_numrecs); > if (numrecs > mp->m_refc_mxr[1]) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid numrecs (%u) in %s block %u/%u", > numrecs, typtab[btype].name, agno, agbno); > return 1; > @@ -624,7 +629,7 @@ scanfunc_refcntbt( > pp = XFS_REFCOUNT_PTR_ADDR(block, 1, mp->m_refc_mxr[1]); > for (i = 0; i < numrecs; i++) { > if (!valid_bno(agno, be32_to_cpu(pp[i]))) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u/%u) " > "in %s block %u/%u", > agno, be32_to_cpu(pp[i]), > @@ -654,13 +659,13 @@ copy_refcount_btree( > > /* validate root and levels before processing the tree */ > if (root == 0 || root > mp->m_sb.sb_agblocks) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u) in refcntbt " > "root in agf %u", root, agno); > return 1; > } > if (levels > mp->m_refc_maxlevels) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid level (%u) in refcntbt root " > "in agf %u", levels, agno); > return 1; > @@ -785,7 +790,8 @@ in_lost_found( > /* Record the "lost+found" inode if we haven't done so already */ > > ASSERT(ino != 0); > - if (!orphanage_ino && is_orphanage_dir(mp, cur_ino, namelen, name)) > + if (!orphanage_ino && is_orphanage_dir(mp, metadump.cur_ino, namelen, > + name)) > orphanage_ino = ino; > > /* We don't obfuscate the "lost+found" directory itself */ > @@ -795,7 +801,7 @@ in_lost_found( > > /* Most files aren't in "lost+found" at all */ > > - if (cur_ino != orphanage_ino) > + if (metadump.cur_ino != orphanage_ino) > return 0; > > /* > @@ -1219,7 +1225,7 @@ generate_obfuscated_name( > print_warning("duplicate name for inode %llu " > "in dir inode %llu\n", > (unsigned long long) ino, > - (unsigned long long) cur_ino); > + (unsigned long long) metadump.cur_ino); > return; > } > > @@ -1229,7 +1235,7 @@ generate_obfuscated_name( > print_warning("unable to record name for inode %llu " > "in dir inode %llu\n", > (unsigned long long) ino, > - (unsigned long long) cur_ino); > + (unsigned long long) metadump.cur_ino); > } > > static void > @@ -1245,9 +1251,9 @@ process_sf_dir( > ino_dir_size = be64_to_cpu(dip->di_size); > if (ino_dir_size > XFS_DFORK_DSIZE(dip, mp)) { > ino_dir_size = XFS_DFORK_DSIZE(dip, mp); > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid size in dir inode %llu", > - (long long)cur_ino); > + (long long)metadump.cur_ino); > } > > sfep = xfs_dir2_sf_firstentry(sfp); > @@ -1261,9 +1267,9 @@ process_sf_dir( > int namelen = sfep->namelen; > > if (namelen == 0) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("zero length entry in dir inode " > - "%llu", (long long)cur_ino); > + "%llu", (long long)metadump.cur_ino); > if (i != sfp->count - 1) > break; > namelen = ino_dir_size - ((char *)&sfep->name[0] - > @@ -1271,16 +1277,17 @@ process_sf_dir( > } else if ((char *)sfep - (char *)sfp + > libxfs_dir2_sf_entsize(mp, sfp, sfep->namelen) > > ino_dir_size) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("entry length in dir inode %llu " > - "overflows space", (long long)cur_ino); > + "overflows space", > + (long long)metadump.cur_ino); > if (i != sfp->count - 1) > break; > namelen = ino_dir_size - ((char *)&sfep->name[0] - > (char *)sfp); > } > > - if (obfuscate) > + if (metadump.obfuscate) > generate_obfuscated_name( > libxfs_dir2_sf_get_ino(mp, sfp, sfep), > namelen, &sfep->name[0]); > @@ -1290,7 +1297,8 @@ process_sf_dir( > } > > /* zero stale data in rest of space in data fork, if any */ > - if (zero_stale_data && (ino_dir_size < XFS_DFORK_DSIZE(dip, mp))) > + if (metadump.zero_stale_data && > + (ino_dir_size < XFS_DFORK_DSIZE(dip, mp))) > memset(sfep, 0, XFS_DFORK_DSIZE(dip, mp) - ino_dir_size); > } > > @@ -1346,18 +1354,18 @@ process_sf_symlink( > > len = be64_to_cpu(dip->di_size); > if (len > XFS_DFORK_DSIZE(dip, mp)) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid size (%d) in symlink inode %llu", > - len, (long long)cur_ino); > + len, (long long)metadump.cur_ino); > len = XFS_DFORK_DSIZE(dip, mp); > } > > buf = (char *)XFS_DFORK_DPTR(dip); > - if (obfuscate) > + if (metadump.obfuscate) > obfuscate_path_components(buf, len); > > /* zero stale data in rest of space in data fork, if any */ > - if (zero_stale_data && len < XFS_DFORK_DSIZE(dip, mp)) > + if (metadump.zero_stale_data && len < XFS_DFORK_DSIZE(dip, mp)) > memset(&buf[len], 0, XFS_DFORK_DSIZE(dip, mp) - len); > } > > @@ -1382,9 +1390,9 @@ process_sf_attr( > ino_attr_size = be16_to_cpu(asfp->hdr.totsize); > if (ino_attr_size > XFS_DFORK_ASIZE(dip, mp)) { > ino_attr_size = XFS_DFORK_ASIZE(dip, mp); > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid attr size in inode %llu", > - (long long)cur_ino); > + (long long)metadump.cur_ino); > } > > asfep = &asfp->list[0]; > @@ -1394,19 +1402,20 @@ process_sf_attr( > int namelen = asfep->namelen; > > if (namelen == 0) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("zero length attr entry in inode " > - "%llu", (long long)cur_ino); > + "%llu", (long long)metadump.cur_ino); > break; > } else if ((char *)asfep - (char *)asfp + > xfs_attr_sf_entsize(asfep) > ino_attr_size) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("attr entry length in inode %llu " > - "overflows space", (long long)cur_ino); > + "overflows space", > + (long long)metadump.cur_ino); > break; > } > > - if (obfuscate) { > + if (metadump.obfuscate) { > generate_obfuscated_name(0, asfep->namelen, > &asfep->nameval[0]); > memset(&asfep->nameval[asfep->namelen], 'v', > @@ -1418,7 +1427,8 @@ process_sf_attr( > } > > /* zero stale data in rest of space in attr fork, if any */ > - if (zero_stale_data && (ino_attr_size < XFS_DFORK_ASIZE(dip, mp))) > + if (metadump.zero_stale_data && > + (ino_attr_size < XFS_DFORK_ASIZE(dip, mp))) > memset(asfep, 0, XFS_DFORK_ASIZE(dip, mp) - ino_attr_size); > } > > @@ -1429,7 +1439,7 @@ process_dir_free_block( > struct xfs_dir2_free *free; > struct xfs_dir3_icfree_hdr freehdr; > > - if (!zero_stale_data) > + if (!metadump.zero_stale_data) > return; > > free = (struct xfs_dir2_free *)block; > @@ -1451,10 +1461,10 @@ process_dir_free_block( > break; > } > default: > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid magic in dir inode %llu " > "free block", > - (unsigned long long)cur_ino); > + (unsigned long long)metadump.cur_ino); > break; > } > } > @@ -1466,7 +1476,7 @@ process_dir_leaf_block( > struct xfs_dir2_leaf *leaf; > struct xfs_dir3_icleaf_hdr leafhdr; > > - if (!zero_stale_data) > + if (!metadump.zero_stale_data) > return; > > /* Yes, this works for dir2 & dir3. Difference is padding. */ > @@ -1549,10 +1559,10 @@ process_dir_data_block( > } > > if (be32_to_cpu(datahdr->magic) != wantmagic) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning( > "invalid magic in dir inode %llu block %ld", > - (unsigned long long)cur_ino, (long)offset); > + (unsigned long long)metadump.cur_ino, (long)offset); > return; > } > > @@ -1572,10 +1582,10 @@ process_dir_data_block( > if (dir_offset + free_length > end_of_data || > !free_length || > (free_length & (XFS_DIR2_DATA_ALIGN - 1))) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning( > "invalid length for dir free space in inode %llu", > - (long long)cur_ino); > + (long long)metadump.cur_ino); > return; > } > if (be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)) != > @@ -1588,7 +1598,7 @@ process_dir_data_block( > * actually at a variable offset, so zeroing &dup->tag > * is zeroing the free space in between > */ > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > int zlen = free_length - > sizeof(xfs_dir2_data_unused_t); > > @@ -1606,23 +1616,23 @@ process_dir_data_block( > > if (dir_offset + length > end_of_data || > ptr + length > endptr) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning( > "invalid length for dir entry name in inode %llu", > - (long long)cur_ino); > + (long long)metadump.cur_ino); > return; > } > if (be16_to_cpu(*libxfs_dir2_data_entry_tag_p(mp, dep)) != > dir_offset) > return; > > - if (obfuscate) > + if (metadump.obfuscate) > generate_obfuscated_name(be64_to_cpu(dep->inumber), > dep->namelen, &dep->name[0]); > dir_offset += length; > ptr += length; > /* Zero the unused space after name, up to the tag */ > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > /* 1 byte for ftype; don't bother with conditional */ > int zlen = > (char *)libxfs_dir2_data_entry_tag_p(mp, dep) - > @@ -1658,7 +1668,7 @@ process_symlink_block( > > print_warning("cannot read %s block %u/%u (%llu)", > typtab[btype].name, agno, agbno, s); > - rval = !stop_on_read_error; > + rval = !metadump.stop_on_read_error; > goto out_pop; > } > link = iocur_top->data; > @@ -1666,10 +1676,10 @@ process_symlink_block( > if (xfs_has_crc((mp))) > link += sizeof(struct xfs_dsymlink_hdr); > > - if (obfuscate) > + if (metadump.obfuscate) > obfuscate_path_components(link, XFS_SYMLINK_BUF_SPACE(mp, > mp->m_sb.sb_blocksize)); > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > size_t linklen, zlen; > > linklen = strlen(link); > @@ -1736,7 +1746,8 @@ process_attr_block( > if ((be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR_LEAF_MAGIC) && > (be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR3_LEAF_MAGIC)) { > for (i = 0; i < attr_data.remote_val_count; i++) { > - if (obfuscate && attr_data.remote_vals[i] == offset) > + if (metadump.obfuscate && > + attr_data.remote_vals[i] == offset) > /* Macros to handle both attr and attr3 */ > memset(block + > (bs - XFS_ATTR3_RMT_BUF_SPACE(mp, bs)), > @@ -1753,9 +1764,9 @@ process_attr_block( > nentries * sizeof(xfs_attr_leaf_entry_t) + > xfs_attr3_leaf_hdr_size(leaf) > > XFS_ATTR3_RMT_BUF_SPACE(mp, bs)) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid attr count in inode %llu", > - (long long)cur_ino); > + (long long)metadump.cur_ino); > return; > } > > @@ -1770,22 +1781,22 @@ process_attr_block( > first_name = xfs_attr3_leaf_name(leaf, i); > > if (be16_to_cpu(entry->nameidx) > mp->m_sb.sb_blocksize) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning( > "invalid attr nameidx in inode %llu", > - (long long)cur_ino); > + (long long)metadump.cur_ino); > break; > } > if (entry->flags & XFS_ATTR_LOCAL) { > local = xfs_attr3_leaf_name_local(leaf, i); > if (local->namelen == 0) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning( > "zero length for attr name in inode %llu", > - (long long)cur_ino); > + (long long)metadump.cur_ino); > break; > } > - if (obfuscate) { > + if (metadump.obfuscate) { > generate_obfuscated_name(0, local->namelen, > &local->nameval[0]); > memset(&local->nameval[local->namelen], 'v', > @@ -1797,18 +1808,18 @@ process_attr_block( > zlen = xfs_attr_leaf_entsize_local(nlen, vlen) - > (sizeof(xfs_attr_leaf_name_local_t) - 1 + > nlen + vlen); > - if (zero_stale_data) > + if (metadump.zero_stale_data) > memset(&local->nameval[nlen + vlen], 0, zlen); > } else { > remote = xfs_attr3_leaf_name_remote(leaf, i); > if (remote->namelen == 0 || remote->valueblk == 0) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning( > "invalid attr entry in inode %llu", > - (long long)cur_ino); > + (long long)metadump.cur_ino); > break; > } > - if (obfuscate) { > + if (metadump.obfuscate) { > generate_obfuscated_name(0, remote->namelen, > &remote->name[0]); > add_remote_vals(be32_to_cpu(remote->valueblk), > @@ -1819,13 +1830,13 @@ process_attr_block( > zlen = xfs_attr_leaf_entsize_remote(nlen) - > (sizeof(xfs_attr_leaf_name_remote_t) - 1 + > nlen); > - if (zero_stale_data) > + if (metadump.zero_stale_data) > memset(&remote->name[nlen], 0, zlen); > } > } > > /* Zero from end of entries array to the first name/val */ > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > struct xfs_attr_leaf_entry *entries; > > entries = xfs_attr3_leaf_entryp(leaf); > @@ -1858,16 +1869,16 @@ process_single_fsb_objects( > > print_warning("cannot read %s block %u/%u (%llu)", > typtab[btype].name, agno, agbno, s); > - rval = !stop_on_read_error; > + rval = !metadump.stop_on_read_error; > goto out_pop; > > } > > - if (!obfuscate && !zero_stale_data) > + if (!metadump.obfuscate && !metadump.zero_stale_data) > goto write; > > /* Zero unused part of interior nodes */ > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > xfs_da_intnode_t *node = iocur_top->data; > int magic = be16_to_cpu(node->hdr.info.magic); > > @@ -1978,12 +1989,12 @@ process_multi_fsb_dir( > > print_warning("cannot read %s block %u/%u (%llu)", > typtab[btype].name, agno, agbno, s); > - rval = !stop_on_read_error; > + rval = !metadump.stop_on_read_error; > goto out_pop; > > } > > - if (!obfuscate && !zero_stale_data) > + if (!metadump.obfuscate && !metadump.zero_stale_data) > goto write; > > dp = iocur_top->data; > @@ -2075,25 +2086,27 @@ process_bmbt_reclist( > * one is found, stop processing remaining extents > */ > if (i > 0 && op + cp > o) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("bmap extent %d in %s ino %llu " > "starts at %llu, previous extent " > "ended at %llu", i, > - typtab[btype].name, (long long)cur_ino, > + typtab[btype].name, > + (long long)metadump.cur_ino, > o, op + cp - 1); > break; > } > > - if (c > max_extent_size) { > + if (c > metadump.max_extent_size) { > /* > * since we are only processing non-data extents, > * large numbers of blocks in a metadata extent is > * extremely rare and more than likely to be corrupt. > */ > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("suspicious count %u in bmap " > "extent %d in %s ino %llu", c, i, > - typtab[btype].name, (long long)cur_ino); > + typtab[btype].name, > + (long long)metadump.cur_ino); > break; > } > > @@ -2104,19 +2117,21 @@ process_bmbt_reclist( > agbno = XFS_FSB_TO_AGBNO(mp, s); > > if (!valid_bno(agno, agbno)) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number %u/%u " > "(%llu) in bmap extent %d in %s ino " > "%llu", agno, agbno, s, i, > - typtab[btype].name, (long long)cur_ino); > + typtab[btype].name, > + (long long)metadump.cur_ino); > break; > } > > if (!valid_bno(agno, agbno + c - 1)) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("bmap extent %i in %s inode %llu " > "overflows AG (end is %u/%u)", i, > - typtab[btype].name, (long long)cur_ino, > + typtab[btype].name, > + (long long)metadump.cur_ino, > agno, agbno + c - 1); > break; > } > @@ -2152,7 +2167,7 @@ scanfunc_bmap( > > if (level == 0) { > if (nrecs > mp->m_bmap_dmxr[0]) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid numrecs (%u) in %s " > "block %u/%u", nrecs, > typtab[btype].name, agno, agbno); > @@ -2163,7 +2178,7 @@ scanfunc_bmap( > } > > if (nrecs > mp->m_bmap_dmxr[1]) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid numrecs (%u) in %s block %u/%u", > nrecs, typtab[btype].name, agno, agbno); > return 1; > @@ -2178,7 +2193,7 @@ scanfunc_bmap( > > if (bno == 0 || bno > mp->m_sb.sb_agblocks || > ag > mp->m_sb.sb_agcount) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u/%u) " > "in %s block %u/%u", ag, bno, > typtab[btype].name, agno, agbno); > @@ -2213,10 +2228,10 @@ process_btinode( > nrecs = be16_to_cpu(dib->bb_numrecs); > > if (level > XFS_BM_MAXLEVELS(mp, whichfork)) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid level (%u) in inode %lld %s " > - "root", level, (long long)cur_ino, > - typtab[btype].name); > + "root", level, (long long)metadump.cur_ino, > + typtab[btype].name); > return 1; > } > > @@ -2227,16 +2242,16 @@ process_btinode( > > maxrecs = libxfs_bmdr_maxrecs(XFS_DFORK_SIZE(dip, mp, whichfork), 0); > if (nrecs > maxrecs) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid numrecs (%u) in inode %lld %s " > - "root", nrecs, (long long)cur_ino, > - typtab[btype].name); > + "root", nrecs, (long long)metadump.cur_ino, > + typtab[btype].name); > return 1; > } > > pp = XFS_BMDR_PTR_ADDR(dib, 1, maxrecs); > > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > char *top; > > /* Unused btree key space */ > @@ -2257,11 +2272,11 @@ process_btinode( > > if (bno == 0 || bno > mp->m_sb.sb_agblocks || > ag > mp->m_sb.sb_agcount) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u/%u) " > - "in inode %llu %s root", ag, > - bno, (long long)cur_ino, > - typtab[btype].name); > + "in inode %llu %s root", ag, bno, > + (long long)metadump.cur_ino, > + typtab[btype].name); > continue; > } > > @@ -2288,14 +2303,16 @@ process_exinode( > whichfork); > used = nex * sizeof(xfs_bmbt_rec_t); > if (nex > max_nex || used > XFS_DFORK_SIZE(dip, mp, whichfork)) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("bad number of extents %llu in inode %lld", > - (unsigned long long)nex, (long long)cur_ino); > + (unsigned long long)nex, > + (long long)metadump.cur_ino); > return 1; > } > > /* Zero unused data fork past used extents */ > - if (zero_stale_data && (used < XFS_DFORK_SIZE(dip, mp, whichfork))) > + if (metadump.zero_stale_data && > + (used < XFS_DFORK_SIZE(dip, mp, whichfork))) > memset(XFS_DFORK_PTR(dip, whichfork) + used, 0, > XFS_DFORK_SIZE(dip, mp, whichfork) - used); > > @@ -2311,7 +2328,7 @@ process_inode_data( > { > switch (dip->di_format) { > case XFS_DINODE_FMT_LOCAL: > - if (!(obfuscate || zero_stale_data)) > + if (!(metadump.obfuscate || metadump.zero_stale_data)) > break; > > /* > @@ -2323,7 +2340,7 @@ process_inode_data( > print_warning( > "Invalid data fork size (%d) in inode %llu, preserving contents!", > XFS_DFORK_DSIZE(dip, mp), > - (long long)cur_ino); > + (long long)metadump.cur_ino); > break; > } > > @@ -2355,9 +2372,9 @@ process_dev_inode( > struct xfs_dinode *dip) > { > if (xfs_dfork_data_extents(dip)) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("inode %llu has unexpected extents", > - (unsigned long long)cur_ino); > + (unsigned long long)metadump.cur_ino); > return; > } > > @@ -2369,11 +2386,11 @@ process_dev_inode( > if (XFS_DFORK_DSIZE(dip, mp) > XFS_LITINO(mp)) { > print_warning( > "Invalid data fork size (%d) in inode %llu, preserving contents!", > - XFS_DFORK_DSIZE(dip, mp), (long long)cur_ino); > + XFS_DFORK_DSIZE(dip, mp), (long long)metadump.cur_ino); > return; > } > > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > unsigned int size = sizeof(xfs_dev_t); > > memset(XFS_DFORK_DPTR(dip) + size, 0, > @@ -2399,17 +2416,17 @@ process_inode( > bool crc_was_ok = false; /* no recalc by default */ > bool need_new_crc = false; > > - cur_ino = XFS_AGINO_TO_INO(mp, agno, agino); > + metadump.cur_ino = XFS_AGINO_TO_INO(mp, agno, agino); > > /* we only care about crc recalculation if we will modify the inode. */ > - if (obfuscate || zero_stale_data) { > + if (metadump.obfuscate || metadump.zero_stale_data) { > crc_was_ok = libxfs_verify_cksum((char *)dip, > mp->m_sb.sb_inodesize, > offsetof(struct xfs_dinode, di_crc)); > } > > if (free_inode) { > - if (zero_stale_data) { > + if (metadump.zero_stale_data) { > /* Zero all of the inode literal area */ > memset(XFS_DFORK_DPTR(dip), 0, XFS_LITINO(mp)); > } > @@ -2451,7 +2468,8 @@ process_inode( > switch (dip->di_aformat) { > case XFS_DINODE_FMT_LOCAL: > need_new_crc = true; > - if (obfuscate || zero_stale_data) > + if (metadump.obfuscate || > + metadump.zero_stale_data) > process_sf_attr(dip); > break; > > @@ -2468,7 +2486,7 @@ process_inode( > > done: > /* Heavy handed but low cost; just do it as a catch-all. */ > - if (zero_stale_data) > + if (metadump.zero_stale_data) > need_new_crc = true; > > if (crc_was_ok && need_new_crc) > @@ -2528,7 +2546,7 @@ copy_inode_chunk( > if (agino == 0 || agino == NULLAGINO || !valid_bno(agno, agbno) || > !valid_bno(agno, XFS_AGINO_TO_AGBNO(mp, > agino + XFS_INODES_PER_CHUNK - 1))) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("bad inode number %llu (%u/%u)", > XFS_AGINO_TO_INO(mp, agno, agino), agno, agino); > return 1; > @@ -2544,7 +2562,7 @@ copy_inode_chunk( > (xfs_has_align(mp) && > mp->m_sb.sb_inoalignmt != 0 && > agbno % mp->m_sb.sb_inoalignmt != 0)) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("badly aligned inode (start = %llu)", > XFS_AGINO_TO_INO(mp, agno, agino)); > return 1; > @@ -2561,7 +2579,7 @@ copy_inode_chunk( > if (iocur_top->data == NULL) { > print_warning("cannot read inode block %u/%u", > agno, agbno); > - rval = !stop_on_read_error; > + rval = !metadump.stop_on_read_error; > goto pop_out; > } > > @@ -2587,7 +2605,7 @@ next_bp: > ioff += inodes_per_buf; > } > > - if (show_progress) > + if (metadump.show_progress) > print_progress("Copied %u of %u inodes (%u of %u AGs)", > inodes_copied, mp->m_sb.sb_icount, agno, > mp->m_sb.sb_agcount); > @@ -2617,7 +2635,7 @@ scanfunc_ino( > > if (level == 0) { > if (numrecs > igeo->inobt_mxr[0]) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid numrecs %d in %s " > "block %u/%u", numrecs, > typtab[btype].name, agno, agbno); > @@ -2640,7 +2658,7 @@ scanfunc_ino( > } > > if (numrecs > igeo->inobt_mxr[1]) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid numrecs %d in %s block %u/%u", > numrecs, typtab[btype].name, agno, agbno); > numrecs = igeo->inobt_mxr[1]; > @@ -2649,7 +2667,7 @@ scanfunc_ino( > pp = XFS_INOBT_PTR_ADDR(mp, block, 1, igeo->inobt_mxr[1]); > for (i = 0; i < numrecs; i++) { > if (!valid_bno(agno, be32_to_cpu(pp[i]))) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u/%u) " > "in %s block %u/%u", > agno, be32_to_cpu(pp[i]), > @@ -2677,13 +2695,13 @@ copy_inodes( > > /* validate root and levels before processing the tree */ > if (root == 0 || root > mp->m_sb.sb_agblocks) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u) in inobt " > "root in agi %u", root, agno); > return 1; > } > if (levels > M_IGEO(mp)->inobt_maxlevels) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid level (%u) in inobt root " > "in agi %u", levels, agno); > return 1; > @@ -2697,7 +2715,7 @@ copy_inodes( > levels = be32_to_cpu(agi->agi_free_level); > > if (root == 0 || root > mp->m_sb.sb_agblocks) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid block number (%u) in " > "finobt root in agi %u", root, > agno); > @@ -2705,7 +2723,7 @@ copy_inodes( > } > > if (levels > M_IGEO(mp)->inobt_maxlevels) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid level (%u) in finobt " > "root in agi %u", levels, agno); > return 1; > @@ -2736,11 +2754,11 @@ scan_ag( > XFS_FSS_TO_BB(mp, 1), DB_RING_IGN, NULL); > if (!iocur_top->data) { > print_warning("cannot read superblock for ag %u", agno); > - if (stop_on_read_error) > + if (metadump.stop_on_read_error) > goto pop_out; > } else { > /* Replace any filesystem label with "L's" */ > - if (obfuscate) { > + if (metadump.obfuscate) { > struct xfs_sb *sb = iocur_top->data; > memset(sb->sb_fname, 'L', > min(strlen(sb->sb_fname), sizeof(sb->sb_fname))); > @@ -2758,7 +2776,7 @@ scan_ag( > agf = iocur_top->data; > if (iocur_top->data == NULL) { > print_warning("cannot read agf block for ag %u", agno); > - if (stop_on_read_error) > + if (metadump.stop_on_read_error) > goto pop_out; > } else { > if (write_buf(iocur_top)) > @@ -2773,7 +2791,7 @@ scan_ag( > agi = iocur_top->data; > if (iocur_top->data == NULL) { > print_warning("cannot read agi block for ag %u", agno); > - if (stop_on_read_error) > + if (metadump.stop_on_read_error) > goto pop_out; > } else { > if (write_buf(iocur_top)) > @@ -2787,10 +2805,10 @@ scan_ag( > XFS_FSS_TO_BB(mp, 1), DB_RING_IGN, NULL); > if (iocur_top->data == NULL) { > print_warning("cannot read agfl block for ag %u", agno); > - if (stop_on_read_error) > + if (metadump.stop_on_read_error) > goto pop_out; > } else { > - if (agf && zero_stale_data) { > + if (agf && metadump.zero_stale_data) { > /* Zero out unused bits of agfl */ > int i; > __be32 *agfl_bno; > @@ -2813,7 +2831,7 @@ scan_ag( > > /* copy AG free space btrees */ > if (agf) { > - if (show_progress) > + if (metadump.show_progress) > print_progress("Copying free space trees of AG %u", > agno); > if (!copy_free_bno_btree(agno, agf)) > @@ -2859,7 +2877,7 @@ copy_ino( > > if (agno >= mp->m_sb.sb_agcount || agbno >= mp->m_sb.sb_agblocks || > offset >= mp->m_sb.sb_inopblock) { > - if (show_warnings) > + if (metadump.show_warnings) > print_warning("invalid %s inode number (%lld)", > typtab[itype].name, (long long)ino); > return 1; > @@ -2871,12 +2889,12 @@ copy_ino( > if (iocur_top->data == NULL) { > print_warning("cannot read %s inode %lld", > typtab[itype].name, (long long)ino); > - rval = !stop_on_read_error; > + rval = !metadump.stop_on_read_error; > goto pop_out; > } > off_cur(offset << mp->m_sb.sb_inodelog, mp->m_sb.sb_inodesize); > > - cur_ino = ino; > + metadump.cur_ino = ino; > rval = process_inode_data(iocur_top->data, itype); > pop_out: > pop_cur(); > @@ -2912,7 +2930,7 @@ copy_log(void) > int logversion; > int cycle = XLOG_INIT_CYCLE; > > - if (show_progress) > + if (metadump.show_progress) > print_progress("Copying log"); > > push_cur(); > @@ -2921,11 +2939,11 @@ copy_log(void) > if (iocur_top->data == NULL) { > pop_cur(); > print_warning("cannot read log"); > - return !stop_on_read_error; > + return !metadump.stop_on_read_error; > } > > /* If not obfuscating or zeroing, just copy the log as it is */ > - if (!obfuscate && !zero_stale_data) > + if (!metadump.obfuscate && !metadump.zero_stale_data) > goto done; > > dirty = xlog_is_dirty(mp, &log, &x, 0); > @@ -2933,7 +2951,7 @@ copy_log(void) > switch (dirty) { > case 0: > /* clear out a clean log */ > - if (show_progress) > + if (metadump.show_progress) > print_progress("Zeroing clean log"); > > logstart = XFS_FSB_TO_DADDR(mp, mp->m_sb.sb_logstart); > @@ -2948,7 +2966,7 @@ copy_log(void) > break; > case 1: > /* keep the dirty log */ > - if (obfuscate) > + if (metadump.obfuscate) > print_warning( > _("Warning: log recovery of an obfuscated metadata image can leak " > "unobfuscated metadata and/or cause image corruption. If possible, " > @@ -2956,7 +2974,7 @@ _("Warning: log recovery of an obfuscated metadata image can leak " > break; > case -1: > /* log detection error */ > - if (obfuscate) > + if (metadump.obfuscate) > print_warning( > _("Could not discern log; image will contain unobfuscated metadata in log.")); > break; > @@ -2979,9 +2997,15 @@ metadump_f( > char *p; > > exitcode = 1; > - show_progress = 0; > - show_warnings = 0; > - stop_on_read_error = 0; > + > + metadump.version = 1; > + metadump.show_progress = 0; > + metadump.stop_on_read_error = 0; > + metadump.max_extent_size = DEFAULT_MAX_EXT_SIZE; > + metadump.show_warnings = 0; > + metadump.obfuscate = 1; > + metadump.zero_stale_data = 1; > + metadump.dirty_log = false; > > if (mp->m_sb.sb_magicnum != XFS_SB_MAGIC) { > print_warning("bad superblock magic number %x, giving up", > @@ -3002,27 +3026,29 @@ metadump_f( > while ((c = getopt(argc, argv, "aegm:ow")) != EOF) { > switch (c) { > case 'a': > - zero_stale_data = 0; > + metadump.zero_stale_data = 0; > break; > case 'e': > - stop_on_read_error = 1; > + metadump.stop_on_read_error = 1; > break; > case 'g': > - show_progress = 1; > + metadump.show_progress = 1; > break; > case 'm': > - max_extent_size = (int)strtol(optarg, &p, 0); > - if (*p != '\0' || max_extent_size <= 0) { > + metadump.max_extent_size = > + (int)strtol(optarg, &p, 0); > + if (*p != '\0' || > + metadump.max_extent_size <= 0) { > print_warning("bad max extent size %s", > optarg); > return 0; > } > break; > case 'o': > - obfuscate = 0; > + metadump.obfuscate = 0; > break; > case 'w': > - show_warnings = 1; > + metadump.show_warnings = 1; > break; > default: > print_warning("bad option for metadump command"); > @@ -3035,21 +3061,6 @@ metadump_f( > return 0; > } > > - metablock = (xfs_metablock_t *)calloc(BBSIZE + 1, BBSIZE); > - if (metablock == NULL) { > - print_warning("memory allocation failure"); > - return 0; > - } > - metablock->mb_blocklog = BBSHIFT; > - metablock->mb_magic = cpu_to_be32(XFS_MD_MAGIC); > - > - /* Set flags about state of metadump */ > - metablock->mb_info = XFS_METADUMP_INFO_FLAGS; > - if (obfuscate) > - metablock->mb_info |= XFS_METADUMP_OBFUSCATED; > - if (!zero_stale_data) > - metablock->mb_info |= XFS_METADUMP_FULLBLOCKS; > - > /* If we'll copy the log, see if the log is dirty */ > if (mp->m_sb.sb_logstart) { > push_cur(); > @@ -3060,34 +3071,52 @@ metadump_f( > struct xlog log; > > if (xlog_is_dirty(mp, &log, &x, 0)) > - metablock->mb_info |= XFS_METADUMP_DIRTYLOG; > + metadump.dirty_log = true; > } > pop_cur(); > } > > - block_index = (__be64 *)((char *)metablock + sizeof(xfs_metablock_t)); > - block_buffer = (char *)metablock + BBSIZE; > - num_indices = (BBSIZE - sizeof(xfs_metablock_t)) / sizeof(__be64); > + metadump.metablock = (xfs_metablock_t *)calloc(BBSIZE + 1, BBSIZE); > + if (metadump.metablock == NULL) { > + print_warning("memory allocation failure"); > + return -1; > + } > + metadump.metablock->mb_blocklog = BBSHIFT; > + metadump.metablock->mb_magic = cpu_to_be32(XFS_MD_MAGIC); > + > + /* Set flags about state of metadump */ > + metadump.metablock->mb_info = XFS_METADUMP_INFO_FLAGS; > + if (metadump.obfuscate) > + metadump.metablock->mb_info |= XFS_METADUMP_OBFUSCATED; > + if (!metadump.zero_stale_data) > + metadump.metablock->mb_info |= XFS_METADUMP_FULLBLOCKS; > + if (metadump.dirty_log) > + metadump.metablock->mb_info |= XFS_METADUMP_DIRTYLOG; > + > + metadump.block_index = (__be64 *)((char *)metadump.metablock + > + sizeof(xfs_metablock_t)); > + metadump.block_buffer = (char *)metadump.metablock + BBSIZE; > + metadump.num_indices = (BBSIZE - sizeof(xfs_metablock_t)) / > + sizeof(__be64); > > /* > * A metadump block can hold at most num_indices of BBSIZE sectors; > * do not try to dump a filesystem with a sector size which does not > * fit within num_indices (i.e. within a single metablock). > */ > - if (mp->m_sb.sb_sectsize > num_indices * BBSIZE) { > + if (mp->m_sb.sb_sectsize > metadump.num_indices * BBSIZE) { > print_warning("Cannot dump filesystem with sector size %u", > mp->m_sb.sb_sectsize); > - free(metablock); > + free(metadump.metablock); > return 0; > } > > - cur_index = 0; > start_iocur_sp = iocur_sp; > > if (strcmp(argv[optind], "-") == 0) { > if (isatty(fileno(stdout))) { > print_warning("cannot write to a terminal"); > - free(metablock); > + free(metadump.metablock); > return 0; > } > /* > @@ -3111,17 +3140,17 @@ metadump_f( > close(outfd); > goto out; > } > - outf = fdopen(outfd, "a"); > - if (outf == NULL) { > + metadump.outf = fdopen(outfd, "a"); > + if (metadump.outf == NULL) { > fprintf(stderr, "cannot create dump stream\n"); > dup2(outfd, STDOUT_FILENO); > close(outfd); > goto out; > } > - stdout_metadump = true; > + metadump.stdout_metadump = true; > } else { > - outf = fopen(argv[optind], "wb"); > - if (outf == NULL) { > + metadump.outf = fopen(argv[optind], "wb"); > + if (metadump.outf == NULL) { > print_warning("cannot create dump file"); > goto out; > } > @@ -3148,24 +3177,24 @@ metadump_f( > if (!exitcode) > exitcode = write_index() < 0; > > - if (progress_since_warning) > - fputc('\n', stdout_metadump ? stderr : stdout); > + if (metadump.progress_since_warning) > + fputc('\n', metadump.stdout_metadump ? stderr : stdout); > > - if (stdout_metadump) { > - fflush(outf); > + if (metadump.stdout_metadump) { > + fflush(metadump.outf); > fflush(stdout); > ret = dup2(outfd, STDOUT_FILENO); > if (ret < 0) > perror("un-redirecting stdout"); > - stdout_metadump = false; > + metadump.stdout_metadump = false; > } > - fclose(outf); > + fclose(metadump.outf); > > /* cleanup iocur stack */ > while (iocur_sp > start_iocur_sp) > pop_cur(); > out: > - free(metablock); > + free(metadump.metablock); > > return 0; > } > -- > 2.39.1 >
On Tue, May 23, 2023 at 09:35:14 AM -0700, Darrick J. Wong wrote: > On Tue, May 23, 2023 at 02:30:29PM +0530, Chandan Babu R wrote: >> This commit collects all state tracking variables in a new "struct metadump" >> structure. > > I think this commit message needs to capture the reasons for /why/ all > these global variables are being pulled into a struct definition that > itself is used once to define a global variable. > The purpose of moving the global variables into one structure was to collect them in one place in the code rather than having them spread across the file. A new member of type "struct metadump_ops *" will be added by a future commit to support the two versions of metadump. I will add the above as part of the commit description.
diff --git a/db/metadump.c b/db/metadump.c index 6bcfd5bba..806cdfd68 100644 --- a/db/metadump.c +++ b/db/metadump.c @@ -40,25 +40,27 @@ static const cmdinfo_t metadump_cmd = N_("[-a] [-e] [-g] [-m max_extent] [-w] [-o] filename"), N_("dump metadata to a file"), metadump_help }; -static FILE *outf; /* metadump file */ - -static xfs_metablock_t *metablock; /* header + index + buffers */ -static __be64 *block_index; -static char *block_buffer; - -static int num_indices; -static int cur_index; - -static xfs_ino_t cur_ino; - -static int show_progress = 0; -static int stop_on_read_error = 0; -static int max_extent_size = DEFAULT_MAX_EXT_SIZE; -static int obfuscate = 1; -static int zero_stale_data = 1; -static int show_warnings = 0; -static int progress_since_warning = 0; -static bool stdout_metadump; +static struct metadump { + int version; + int show_progress; + int stop_on_read_error; + int max_extent_size; + int show_warnings; + int obfuscate; + int zero_stale_data; + int progress_since_warning; + bool dirty_log; + bool stdout_metadump; + xfs_ino_t cur_ino; + /* Metadump file */ + FILE *outf; + /* header + index + buffers */ + struct xfs_metablock *metablock; + __be64 *block_index; + char *block_buffer; + int num_indices; + int cur_index; +} metadump; void metadump_init(void) @@ -98,9 +100,9 @@ print_warning(const char *fmt, ...) va_end(ap); buf[sizeof(buf)-1] = '\0'; - fprintf(stderr, "%s%s: %s\n", progress_since_warning ? "\n" : "", - progname, buf); - progress_since_warning = 0; + fprintf(stderr, "%s%s: %s\n", + metadump.progress_since_warning ? "\n" : "", progname, buf); + metadump.progress_since_warning = 0; } static void @@ -118,10 +120,10 @@ print_progress(const char *fmt, ...) va_end(ap); buf[sizeof(buf)-1] = '\0'; - f = stdout_metadump ? stderr : stdout; + f = metadump.stdout_metadump ? stderr : stdout; fprintf(f, "\r%-59s", buf); fflush(f); - progress_since_warning = 1; + metadump.progress_since_warning = 1; } /* @@ -136,17 +138,19 @@ print_progress(const char *fmt, ...) static int write_index(void) { + struct xfs_metablock *metablock = metadump.metablock; /* * write index block and following data blocks (streaming) */ - metablock->mb_count = cpu_to_be16(cur_index); - if (fwrite(metablock, (cur_index + 1) << BBSHIFT, 1, outf) != 1) { + metablock->mb_count = cpu_to_be16(metadump.cur_index); + if (fwrite(metablock, (metadump.cur_index + 1) << BBSHIFT, 1, + metadump.outf) != 1) { print_warning("error writing to target file"); return -1; } - memset(block_index, 0, num_indices * sizeof(__be64)); - cur_index = 0; + memset(metadump.block_index, 0, metadump.num_indices * sizeof(__be64)); + metadump.cur_index = 0; return 0; } @@ -163,9 +167,10 @@ write_buf_segment( int ret; for (i = 0; i < len; i++, off++, data += BBSIZE) { - block_index[cur_index] = cpu_to_be64(off); - memcpy(&block_buffer[cur_index << BBSHIFT], data, BBSIZE); - if (++cur_index == num_indices) { + metadump.block_index[metadump.cur_index] = cpu_to_be64(off); + memcpy(&metadump.block_buffer[metadump.cur_index << BBSHIFT], + data, BBSIZE); + if (++metadump.cur_index == metadump.num_indices) { ret = write_index(); if (ret) return -EIO; @@ -388,11 +393,11 @@ scan_btree( if (iocur_top->data == NULL) { print_warning("cannot read %s block %u/%u", typtab[btype].name, agno, agbno); - rval = !stop_on_read_error; + rval = !metadump.stop_on_read_error; goto pop_out; } - if (zero_stale_data) { + if (metadump.zero_stale_data) { zero_btree_block(iocur_top->data, btype); iocur_top->need_crc = 1; } @@ -446,7 +451,7 @@ scanfunc_freesp( numrecs = be16_to_cpu(block->bb_numrecs); if (numrecs > mp->m_alloc_mxr[1]) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid numrecs (%u) in %s block %u/%u", numrecs, typtab[btype].name, agno, agbno); return 1; @@ -455,7 +460,7 @@ scanfunc_freesp( pp = XFS_ALLOC_PTR_ADDR(mp, block, 1, mp->m_alloc_mxr[1]); for (i = 0; i < numrecs; i++) { if (!valid_bno(agno, be32_to_cpu(pp[i]))) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u/%u) " "in %s block %u/%u", agno, be32_to_cpu(pp[i]), @@ -482,13 +487,13 @@ copy_free_bno_btree( /* validate root and levels before processing the tree */ if (root == 0 || root > mp->m_sb.sb_agblocks) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u) in bnobt " "root in agf %u", root, agno); return 1; } if (levels > mp->m_alloc_maxlevels) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid level (%u) in bnobt root " "in agf %u", levels, agno); return 1; @@ -510,13 +515,13 @@ copy_free_cnt_btree( /* validate root and levels before processing the tree */ if (root == 0 || root > mp->m_sb.sb_agblocks) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u) in cntbt " "root in agf %u", root, agno); return 1; } if (levels > mp->m_alloc_maxlevels) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid level (%u) in cntbt root " "in agf %u", levels, agno); return 1; @@ -543,7 +548,7 @@ scanfunc_rmapbt( numrecs = be16_to_cpu(block->bb_numrecs); if (numrecs > mp->m_rmap_mxr[1]) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid numrecs (%u) in %s block %u/%u", numrecs, typtab[btype].name, agno, agbno); return 1; @@ -552,7 +557,7 @@ scanfunc_rmapbt( pp = XFS_RMAP_PTR_ADDR(block, 1, mp->m_rmap_mxr[1]); for (i = 0; i < numrecs; i++) { if (!valid_bno(agno, be32_to_cpu(pp[i]))) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u/%u) " "in %s block %u/%u", agno, be32_to_cpu(pp[i]), @@ -582,13 +587,13 @@ copy_rmap_btree( /* validate root and levels before processing the tree */ if (root == 0 || root > mp->m_sb.sb_agblocks) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u) in rmapbt " "root in agf %u", root, agno); return 1; } if (levels > mp->m_rmap_maxlevels) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid level (%u) in rmapbt root " "in agf %u", levels, agno); return 1; @@ -615,7 +620,7 @@ scanfunc_refcntbt( numrecs = be16_to_cpu(block->bb_numrecs); if (numrecs > mp->m_refc_mxr[1]) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid numrecs (%u) in %s block %u/%u", numrecs, typtab[btype].name, agno, agbno); return 1; @@ -624,7 +629,7 @@ scanfunc_refcntbt( pp = XFS_REFCOUNT_PTR_ADDR(block, 1, mp->m_refc_mxr[1]); for (i = 0; i < numrecs; i++) { if (!valid_bno(agno, be32_to_cpu(pp[i]))) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u/%u) " "in %s block %u/%u", agno, be32_to_cpu(pp[i]), @@ -654,13 +659,13 @@ copy_refcount_btree( /* validate root and levels before processing the tree */ if (root == 0 || root > mp->m_sb.sb_agblocks) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u) in refcntbt " "root in agf %u", root, agno); return 1; } if (levels > mp->m_refc_maxlevels) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid level (%u) in refcntbt root " "in agf %u", levels, agno); return 1; @@ -785,7 +790,8 @@ in_lost_found( /* Record the "lost+found" inode if we haven't done so already */ ASSERT(ino != 0); - if (!orphanage_ino && is_orphanage_dir(mp, cur_ino, namelen, name)) + if (!orphanage_ino && is_orphanage_dir(mp, metadump.cur_ino, namelen, + name)) orphanage_ino = ino; /* We don't obfuscate the "lost+found" directory itself */ @@ -795,7 +801,7 @@ in_lost_found( /* Most files aren't in "lost+found" at all */ - if (cur_ino != orphanage_ino) + if (metadump.cur_ino != orphanage_ino) return 0; /* @@ -1219,7 +1225,7 @@ generate_obfuscated_name( print_warning("duplicate name for inode %llu " "in dir inode %llu\n", (unsigned long long) ino, - (unsigned long long) cur_ino); + (unsigned long long) metadump.cur_ino); return; } @@ -1229,7 +1235,7 @@ generate_obfuscated_name( print_warning("unable to record name for inode %llu " "in dir inode %llu\n", (unsigned long long) ino, - (unsigned long long) cur_ino); + (unsigned long long) metadump.cur_ino); } static void @@ -1245,9 +1251,9 @@ process_sf_dir( ino_dir_size = be64_to_cpu(dip->di_size); if (ino_dir_size > XFS_DFORK_DSIZE(dip, mp)) { ino_dir_size = XFS_DFORK_DSIZE(dip, mp); - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid size in dir inode %llu", - (long long)cur_ino); + (long long)metadump.cur_ino); } sfep = xfs_dir2_sf_firstentry(sfp); @@ -1261,9 +1267,9 @@ process_sf_dir( int namelen = sfep->namelen; if (namelen == 0) { - if (show_warnings) + if (metadump.show_warnings) print_warning("zero length entry in dir inode " - "%llu", (long long)cur_ino); + "%llu", (long long)metadump.cur_ino); if (i != sfp->count - 1) break; namelen = ino_dir_size - ((char *)&sfep->name[0] - @@ -1271,16 +1277,17 @@ process_sf_dir( } else if ((char *)sfep - (char *)sfp + libxfs_dir2_sf_entsize(mp, sfp, sfep->namelen) > ino_dir_size) { - if (show_warnings) + if (metadump.show_warnings) print_warning("entry length in dir inode %llu " - "overflows space", (long long)cur_ino); + "overflows space", + (long long)metadump.cur_ino); if (i != sfp->count - 1) break; namelen = ino_dir_size - ((char *)&sfep->name[0] - (char *)sfp); } - if (obfuscate) + if (metadump.obfuscate) generate_obfuscated_name( libxfs_dir2_sf_get_ino(mp, sfp, sfep), namelen, &sfep->name[0]); @@ -1290,7 +1297,8 @@ process_sf_dir( } /* zero stale data in rest of space in data fork, if any */ - if (zero_stale_data && (ino_dir_size < XFS_DFORK_DSIZE(dip, mp))) + if (metadump.zero_stale_data && + (ino_dir_size < XFS_DFORK_DSIZE(dip, mp))) memset(sfep, 0, XFS_DFORK_DSIZE(dip, mp) - ino_dir_size); } @@ -1346,18 +1354,18 @@ process_sf_symlink( len = be64_to_cpu(dip->di_size); if (len > XFS_DFORK_DSIZE(dip, mp)) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid size (%d) in symlink inode %llu", - len, (long long)cur_ino); + len, (long long)metadump.cur_ino); len = XFS_DFORK_DSIZE(dip, mp); } buf = (char *)XFS_DFORK_DPTR(dip); - if (obfuscate) + if (metadump.obfuscate) obfuscate_path_components(buf, len); /* zero stale data in rest of space in data fork, if any */ - if (zero_stale_data && len < XFS_DFORK_DSIZE(dip, mp)) + if (metadump.zero_stale_data && len < XFS_DFORK_DSIZE(dip, mp)) memset(&buf[len], 0, XFS_DFORK_DSIZE(dip, mp) - len); } @@ -1382,9 +1390,9 @@ process_sf_attr( ino_attr_size = be16_to_cpu(asfp->hdr.totsize); if (ino_attr_size > XFS_DFORK_ASIZE(dip, mp)) { ino_attr_size = XFS_DFORK_ASIZE(dip, mp); - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid attr size in inode %llu", - (long long)cur_ino); + (long long)metadump.cur_ino); } asfep = &asfp->list[0]; @@ -1394,19 +1402,20 @@ process_sf_attr( int namelen = asfep->namelen; if (namelen == 0) { - if (show_warnings) + if (metadump.show_warnings) print_warning("zero length attr entry in inode " - "%llu", (long long)cur_ino); + "%llu", (long long)metadump.cur_ino); break; } else if ((char *)asfep - (char *)asfp + xfs_attr_sf_entsize(asfep) > ino_attr_size) { - if (show_warnings) + if (metadump.show_warnings) print_warning("attr entry length in inode %llu " - "overflows space", (long long)cur_ino); + "overflows space", + (long long)metadump.cur_ino); break; } - if (obfuscate) { + if (metadump.obfuscate) { generate_obfuscated_name(0, asfep->namelen, &asfep->nameval[0]); memset(&asfep->nameval[asfep->namelen], 'v', @@ -1418,7 +1427,8 @@ process_sf_attr( } /* zero stale data in rest of space in attr fork, if any */ - if (zero_stale_data && (ino_attr_size < XFS_DFORK_ASIZE(dip, mp))) + if (metadump.zero_stale_data && + (ino_attr_size < XFS_DFORK_ASIZE(dip, mp))) memset(asfep, 0, XFS_DFORK_ASIZE(dip, mp) - ino_attr_size); } @@ -1429,7 +1439,7 @@ process_dir_free_block( struct xfs_dir2_free *free; struct xfs_dir3_icfree_hdr freehdr; - if (!zero_stale_data) + if (!metadump.zero_stale_data) return; free = (struct xfs_dir2_free *)block; @@ -1451,10 +1461,10 @@ process_dir_free_block( break; } default: - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid magic in dir inode %llu " "free block", - (unsigned long long)cur_ino); + (unsigned long long)metadump.cur_ino); break; } } @@ -1466,7 +1476,7 @@ process_dir_leaf_block( struct xfs_dir2_leaf *leaf; struct xfs_dir3_icleaf_hdr leafhdr; - if (!zero_stale_data) + if (!metadump.zero_stale_data) return; /* Yes, this works for dir2 & dir3. Difference is padding. */ @@ -1549,10 +1559,10 @@ process_dir_data_block( } if (be32_to_cpu(datahdr->magic) != wantmagic) { - if (show_warnings) + if (metadump.show_warnings) print_warning( "invalid magic in dir inode %llu block %ld", - (unsigned long long)cur_ino, (long)offset); + (unsigned long long)metadump.cur_ino, (long)offset); return; } @@ -1572,10 +1582,10 @@ process_dir_data_block( if (dir_offset + free_length > end_of_data || !free_length || (free_length & (XFS_DIR2_DATA_ALIGN - 1))) { - if (show_warnings) + if (metadump.show_warnings) print_warning( "invalid length for dir free space in inode %llu", - (long long)cur_ino); + (long long)metadump.cur_ino); return; } if (be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)) != @@ -1588,7 +1598,7 @@ process_dir_data_block( * actually at a variable offset, so zeroing &dup->tag * is zeroing the free space in between */ - if (zero_stale_data) { + if (metadump.zero_stale_data) { int zlen = free_length - sizeof(xfs_dir2_data_unused_t); @@ -1606,23 +1616,23 @@ process_dir_data_block( if (dir_offset + length > end_of_data || ptr + length > endptr) { - if (show_warnings) + if (metadump.show_warnings) print_warning( "invalid length for dir entry name in inode %llu", - (long long)cur_ino); + (long long)metadump.cur_ino); return; } if (be16_to_cpu(*libxfs_dir2_data_entry_tag_p(mp, dep)) != dir_offset) return; - if (obfuscate) + if (metadump.obfuscate) generate_obfuscated_name(be64_to_cpu(dep->inumber), dep->namelen, &dep->name[0]); dir_offset += length; ptr += length; /* Zero the unused space after name, up to the tag */ - if (zero_stale_data) { + if (metadump.zero_stale_data) { /* 1 byte for ftype; don't bother with conditional */ int zlen = (char *)libxfs_dir2_data_entry_tag_p(mp, dep) - @@ -1658,7 +1668,7 @@ process_symlink_block( print_warning("cannot read %s block %u/%u (%llu)", typtab[btype].name, agno, agbno, s); - rval = !stop_on_read_error; + rval = !metadump.stop_on_read_error; goto out_pop; } link = iocur_top->data; @@ -1666,10 +1676,10 @@ process_symlink_block( if (xfs_has_crc((mp))) link += sizeof(struct xfs_dsymlink_hdr); - if (obfuscate) + if (metadump.obfuscate) obfuscate_path_components(link, XFS_SYMLINK_BUF_SPACE(mp, mp->m_sb.sb_blocksize)); - if (zero_stale_data) { + if (metadump.zero_stale_data) { size_t linklen, zlen; linklen = strlen(link); @@ -1736,7 +1746,8 @@ process_attr_block( if ((be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR_LEAF_MAGIC) && (be16_to_cpu(leaf->hdr.info.magic) != XFS_ATTR3_LEAF_MAGIC)) { for (i = 0; i < attr_data.remote_val_count; i++) { - if (obfuscate && attr_data.remote_vals[i] == offset) + if (metadump.obfuscate && + attr_data.remote_vals[i] == offset) /* Macros to handle both attr and attr3 */ memset(block + (bs - XFS_ATTR3_RMT_BUF_SPACE(mp, bs)), @@ -1753,9 +1764,9 @@ process_attr_block( nentries * sizeof(xfs_attr_leaf_entry_t) + xfs_attr3_leaf_hdr_size(leaf) > XFS_ATTR3_RMT_BUF_SPACE(mp, bs)) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid attr count in inode %llu", - (long long)cur_ino); + (long long)metadump.cur_ino); return; } @@ -1770,22 +1781,22 @@ process_attr_block( first_name = xfs_attr3_leaf_name(leaf, i); if (be16_to_cpu(entry->nameidx) > mp->m_sb.sb_blocksize) { - if (show_warnings) + if (metadump.show_warnings) print_warning( "invalid attr nameidx in inode %llu", - (long long)cur_ino); + (long long)metadump.cur_ino); break; } if (entry->flags & XFS_ATTR_LOCAL) { local = xfs_attr3_leaf_name_local(leaf, i); if (local->namelen == 0) { - if (show_warnings) + if (metadump.show_warnings) print_warning( "zero length for attr name in inode %llu", - (long long)cur_ino); + (long long)metadump.cur_ino); break; } - if (obfuscate) { + if (metadump.obfuscate) { generate_obfuscated_name(0, local->namelen, &local->nameval[0]); memset(&local->nameval[local->namelen], 'v', @@ -1797,18 +1808,18 @@ process_attr_block( zlen = xfs_attr_leaf_entsize_local(nlen, vlen) - (sizeof(xfs_attr_leaf_name_local_t) - 1 + nlen + vlen); - if (zero_stale_data) + if (metadump.zero_stale_data) memset(&local->nameval[nlen + vlen], 0, zlen); } else { remote = xfs_attr3_leaf_name_remote(leaf, i); if (remote->namelen == 0 || remote->valueblk == 0) { - if (show_warnings) + if (metadump.show_warnings) print_warning( "invalid attr entry in inode %llu", - (long long)cur_ino); + (long long)metadump.cur_ino); break; } - if (obfuscate) { + if (metadump.obfuscate) { generate_obfuscated_name(0, remote->namelen, &remote->name[0]); add_remote_vals(be32_to_cpu(remote->valueblk), @@ -1819,13 +1830,13 @@ process_attr_block( zlen = xfs_attr_leaf_entsize_remote(nlen) - (sizeof(xfs_attr_leaf_name_remote_t) - 1 + nlen); - if (zero_stale_data) + if (metadump.zero_stale_data) memset(&remote->name[nlen], 0, zlen); } } /* Zero from end of entries array to the first name/val */ - if (zero_stale_data) { + if (metadump.zero_stale_data) { struct xfs_attr_leaf_entry *entries; entries = xfs_attr3_leaf_entryp(leaf); @@ -1858,16 +1869,16 @@ process_single_fsb_objects( print_warning("cannot read %s block %u/%u (%llu)", typtab[btype].name, agno, agbno, s); - rval = !stop_on_read_error; + rval = !metadump.stop_on_read_error; goto out_pop; } - if (!obfuscate && !zero_stale_data) + if (!metadump.obfuscate && !metadump.zero_stale_data) goto write; /* Zero unused part of interior nodes */ - if (zero_stale_data) { + if (metadump.zero_stale_data) { xfs_da_intnode_t *node = iocur_top->data; int magic = be16_to_cpu(node->hdr.info.magic); @@ -1978,12 +1989,12 @@ process_multi_fsb_dir( print_warning("cannot read %s block %u/%u (%llu)", typtab[btype].name, agno, agbno, s); - rval = !stop_on_read_error; + rval = !metadump.stop_on_read_error; goto out_pop; } - if (!obfuscate && !zero_stale_data) + if (!metadump.obfuscate && !metadump.zero_stale_data) goto write; dp = iocur_top->data; @@ -2075,25 +2086,27 @@ process_bmbt_reclist( * one is found, stop processing remaining extents */ if (i > 0 && op + cp > o) { - if (show_warnings) + if (metadump.show_warnings) print_warning("bmap extent %d in %s ino %llu " "starts at %llu, previous extent " "ended at %llu", i, - typtab[btype].name, (long long)cur_ino, + typtab[btype].name, + (long long)metadump.cur_ino, o, op + cp - 1); break; } - if (c > max_extent_size) { + if (c > metadump.max_extent_size) { /* * since we are only processing non-data extents, * large numbers of blocks in a metadata extent is * extremely rare and more than likely to be corrupt. */ - if (show_warnings) + if (metadump.show_warnings) print_warning("suspicious count %u in bmap " "extent %d in %s ino %llu", c, i, - typtab[btype].name, (long long)cur_ino); + typtab[btype].name, + (long long)metadump.cur_ino); break; } @@ -2104,19 +2117,21 @@ process_bmbt_reclist( agbno = XFS_FSB_TO_AGBNO(mp, s); if (!valid_bno(agno, agbno)) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number %u/%u " "(%llu) in bmap extent %d in %s ino " "%llu", agno, agbno, s, i, - typtab[btype].name, (long long)cur_ino); + typtab[btype].name, + (long long)metadump.cur_ino); break; } if (!valid_bno(agno, agbno + c - 1)) { - if (show_warnings) + if (metadump.show_warnings) print_warning("bmap extent %i in %s inode %llu " "overflows AG (end is %u/%u)", i, - typtab[btype].name, (long long)cur_ino, + typtab[btype].name, + (long long)metadump.cur_ino, agno, agbno + c - 1); break; } @@ -2152,7 +2167,7 @@ scanfunc_bmap( if (level == 0) { if (nrecs > mp->m_bmap_dmxr[0]) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid numrecs (%u) in %s " "block %u/%u", nrecs, typtab[btype].name, agno, agbno); @@ -2163,7 +2178,7 @@ scanfunc_bmap( } if (nrecs > mp->m_bmap_dmxr[1]) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid numrecs (%u) in %s block %u/%u", nrecs, typtab[btype].name, agno, agbno); return 1; @@ -2178,7 +2193,7 @@ scanfunc_bmap( if (bno == 0 || bno > mp->m_sb.sb_agblocks || ag > mp->m_sb.sb_agcount) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u/%u) " "in %s block %u/%u", ag, bno, typtab[btype].name, agno, agbno); @@ -2213,10 +2228,10 @@ process_btinode( nrecs = be16_to_cpu(dib->bb_numrecs); if (level > XFS_BM_MAXLEVELS(mp, whichfork)) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid level (%u) in inode %lld %s " - "root", level, (long long)cur_ino, - typtab[btype].name); + "root", level, (long long)metadump.cur_ino, + typtab[btype].name); return 1; } @@ -2227,16 +2242,16 @@ process_btinode( maxrecs = libxfs_bmdr_maxrecs(XFS_DFORK_SIZE(dip, mp, whichfork), 0); if (nrecs > maxrecs) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid numrecs (%u) in inode %lld %s " - "root", nrecs, (long long)cur_ino, - typtab[btype].name); + "root", nrecs, (long long)metadump.cur_ino, + typtab[btype].name); return 1; } pp = XFS_BMDR_PTR_ADDR(dib, 1, maxrecs); - if (zero_stale_data) { + if (metadump.zero_stale_data) { char *top; /* Unused btree key space */ @@ -2257,11 +2272,11 @@ process_btinode( if (bno == 0 || bno > mp->m_sb.sb_agblocks || ag > mp->m_sb.sb_agcount) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u/%u) " - "in inode %llu %s root", ag, - bno, (long long)cur_ino, - typtab[btype].name); + "in inode %llu %s root", ag, bno, + (long long)metadump.cur_ino, + typtab[btype].name); continue; } @@ -2288,14 +2303,16 @@ process_exinode( whichfork); used = nex * sizeof(xfs_bmbt_rec_t); if (nex > max_nex || used > XFS_DFORK_SIZE(dip, mp, whichfork)) { - if (show_warnings) + if (metadump.show_warnings) print_warning("bad number of extents %llu in inode %lld", - (unsigned long long)nex, (long long)cur_ino); + (unsigned long long)nex, + (long long)metadump.cur_ino); return 1; } /* Zero unused data fork past used extents */ - if (zero_stale_data && (used < XFS_DFORK_SIZE(dip, mp, whichfork))) + if (metadump.zero_stale_data && + (used < XFS_DFORK_SIZE(dip, mp, whichfork))) memset(XFS_DFORK_PTR(dip, whichfork) + used, 0, XFS_DFORK_SIZE(dip, mp, whichfork) - used); @@ -2311,7 +2328,7 @@ process_inode_data( { switch (dip->di_format) { case XFS_DINODE_FMT_LOCAL: - if (!(obfuscate || zero_stale_data)) + if (!(metadump.obfuscate || metadump.zero_stale_data)) break; /* @@ -2323,7 +2340,7 @@ process_inode_data( print_warning( "Invalid data fork size (%d) in inode %llu, preserving contents!", XFS_DFORK_DSIZE(dip, mp), - (long long)cur_ino); + (long long)metadump.cur_ino); break; } @@ -2355,9 +2372,9 @@ process_dev_inode( struct xfs_dinode *dip) { if (xfs_dfork_data_extents(dip)) { - if (show_warnings) + if (metadump.show_warnings) print_warning("inode %llu has unexpected extents", - (unsigned long long)cur_ino); + (unsigned long long)metadump.cur_ino); return; } @@ -2369,11 +2386,11 @@ process_dev_inode( if (XFS_DFORK_DSIZE(dip, mp) > XFS_LITINO(mp)) { print_warning( "Invalid data fork size (%d) in inode %llu, preserving contents!", - XFS_DFORK_DSIZE(dip, mp), (long long)cur_ino); + XFS_DFORK_DSIZE(dip, mp), (long long)metadump.cur_ino); return; } - if (zero_stale_data) { + if (metadump.zero_stale_data) { unsigned int size = sizeof(xfs_dev_t); memset(XFS_DFORK_DPTR(dip) + size, 0, @@ -2399,17 +2416,17 @@ process_inode( bool crc_was_ok = false; /* no recalc by default */ bool need_new_crc = false; - cur_ino = XFS_AGINO_TO_INO(mp, agno, agino); + metadump.cur_ino = XFS_AGINO_TO_INO(mp, agno, agino); /* we only care about crc recalculation if we will modify the inode. */ - if (obfuscate || zero_stale_data) { + if (metadump.obfuscate || metadump.zero_stale_data) { crc_was_ok = libxfs_verify_cksum((char *)dip, mp->m_sb.sb_inodesize, offsetof(struct xfs_dinode, di_crc)); } if (free_inode) { - if (zero_stale_data) { + if (metadump.zero_stale_data) { /* Zero all of the inode literal area */ memset(XFS_DFORK_DPTR(dip), 0, XFS_LITINO(mp)); } @@ -2451,7 +2468,8 @@ process_inode( switch (dip->di_aformat) { case XFS_DINODE_FMT_LOCAL: need_new_crc = true; - if (obfuscate || zero_stale_data) + if (metadump.obfuscate || + metadump.zero_stale_data) process_sf_attr(dip); break; @@ -2468,7 +2486,7 @@ process_inode( done: /* Heavy handed but low cost; just do it as a catch-all. */ - if (zero_stale_data) + if (metadump.zero_stale_data) need_new_crc = true; if (crc_was_ok && need_new_crc) @@ -2528,7 +2546,7 @@ copy_inode_chunk( if (agino == 0 || agino == NULLAGINO || !valid_bno(agno, agbno) || !valid_bno(agno, XFS_AGINO_TO_AGBNO(mp, agino + XFS_INODES_PER_CHUNK - 1))) { - if (show_warnings) + if (metadump.show_warnings) print_warning("bad inode number %llu (%u/%u)", XFS_AGINO_TO_INO(mp, agno, agino), agno, agino); return 1; @@ -2544,7 +2562,7 @@ copy_inode_chunk( (xfs_has_align(mp) && mp->m_sb.sb_inoalignmt != 0 && agbno % mp->m_sb.sb_inoalignmt != 0)) { - if (show_warnings) + if (metadump.show_warnings) print_warning("badly aligned inode (start = %llu)", XFS_AGINO_TO_INO(mp, agno, agino)); return 1; @@ -2561,7 +2579,7 @@ copy_inode_chunk( if (iocur_top->data == NULL) { print_warning("cannot read inode block %u/%u", agno, agbno); - rval = !stop_on_read_error; + rval = !metadump.stop_on_read_error; goto pop_out; } @@ -2587,7 +2605,7 @@ next_bp: ioff += inodes_per_buf; } - if (show_progress) + if (metadump.show_progress) print_progress("Copied %u of %u inodes (%u of %u AGs)", inodes_copied, mp->m_sb.sb_icount, agno, mp->m_sb.sb_agcount); @@ -2617,7 +2635,7 @@ scanfunc_ino( if (level == 0) { if (numrecs > igeo->inobt_mxr[0]) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid numrecs %d in %s " "block %u/%u", numrecs, typtab[btype].name, agno, agbno); @@ -2640,7 +2658,7 @@ scanfunc_ino( } if (numrecs > igeo->inobt_mxr[1]) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid numrecs %d in %s block %u/%u", numrecs, typtab[btype].name, agno, agbno); numrecs = igeo->inobt_mxr[1]; @@ -2649,7 +2667,7 @@ scanfunc_ino( pp = XFS_INOBT_PTR_ADDR(mp, block, 1, igeo->inobt_mxr[1]); for (i = 0; i < numrecs; i++) { if (!valid_bno(agno, be32_to_cpu(pp[i]))) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u/%u) " "in %s block %u/%u", agno, be32_to_cpu(pp[i]), @@ -2677,13 +2695,13 @@ copy_inodes( /* validate root and levels before processing the tree */ if (root == 0 || root > mp->m_sb.sb_agblocks) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u) in inobt " "root in agi %u", root, agno); return 1; } if (levels > M_IGEO(mp)->inobt_maxlevels) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid level (%u) in inobt root " "in agi %u", levels, agno); return 1; @@ -2697,7 +2715,7 @@ copy_inodes( levels = be32_to_cpu(agi->agi_free_level); if (root == 0 || root > mp->m_sb.sb_agblocks) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid block number (%u) in " "finobt root in agi %u", root, agno); @@ -2705,7 +2723,7 @@ copy_inodes( } if (levels > M_IGEO(mp)->inobt_maxlevels) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid level (%u) in finobt " "root in agi %u", levels, agno); return 1; @@ -2736,11 +2754,11 @@ scan_ag( XFS_FSS_TO_BB(mp, 1), DB_RING_IGN, NULL); if (!iocur_top->data) { print_warning("cannot read superblock for ag %u", agno); - if (stop_on_read_error) + if (metadump.stop_on_read_error) goto pop_out; } else { /* Replace any filesystem label with "L's" */ - if (obfuscate) { + if (metadump.obfuscate) { struct xfs_sb *sb = iocur_top->data; memset(sb->sb_fname, 'L', min(strlen(sb->sb_fname), sizeof(sb->sb_fname))); @@ -2758,7 +2776,7 @@ scan_ag( agf = iocur_top->data; if (iocur_top->data == NULL) { print_warning("cannot read agf block for ag %u", agno); - if (stop_on_read_error) + if (metadump.stop_on_read_error) goto pop_out; } else { if (write_buf(iocur_top)) @@ -2773,7 +2791,7 @@ scan_ag( agi = iocur_top->data; if (iocur_top->data == NULL) { print_warning("cannot read agi block for ag %u", agno); - if (stop_on_read_error) + if (metadump.stop_on_read_error) goto pop_out; } else { if (write_buf(iocur_top)) @@ -2787,10 +2805,10 @@ scan_ag( XFS_FSS_TO_BB(mp, 1), DB_RING_IGN, NULL); if (iocur_top->data == NULL) { print_warning("cannot read agfl block for ag %u", agno); - if (stop_on_read_error) + if (metadump.stop_on_read_error) goto pop_out; } else { - if (agf && zero_stale_data) { + if (agf && metadump.zero_stale_data) { /* Zero out unused bits of agfl */ int i; __be32 *agfl_bno; @@ -2813,7 +2831,7 @@ scan_ag( /* copy AG free space btrees */ if (agf) { - if (show_progress) + if (metadump.show_progress) print_progress("Copying free space trees of AG %u", agno); if (!copy_free_bno_btree(agno, agf)) @@ -2859,7 +2877,7 @@ copy_ino( if (agno >= mp->m_sb.sb_agcount || agbno >= mp->m_sb.sb_agblocks || offset >= mp->m_sb.sb_inopblock) { - if (show_warnings) + if (metadump.show_warnings) print_warning("invalid %s inode number (%lld)", typtab[itype].name, (long long)ino); return 1; @@ -2871,12 +2889,12 @@ copy_ino( if (iocur_top->data == NULL) { print_warning("cannot read %s inode %lld", typtab[itype].name, (long long)ino); - rval = !stop_on_read_error; + rval = !metadump.stop_on_read_error; goto pop_out; } off_cur(offset << mp->m_sb.sb_inodelog, mp->m_sb.sb_inodesize); - cur_ino = ino; + metadump.cur_ino = ino; rval = process_inode_data(iocur_top->data, itype); pop_out: pop_cur(); @@ -2912,7 +2930,7 @@ copy_log(void) int logversion; int cycle = XLOG_INIT_CYCLE; - if (show_progress) + if (metadump.show_progress) print_progress("Copying log"); push_cur(); @@ -2921,11 +2939,11 @@ copy_log(void) if (iocur_top->data == NULL) { pop_cur(); print_warning("cannot read log"); - return !stop_on_read_error; + return !metadump.stop_on_read_error; } /* If not obfuscating or zeroing, just copy the log as it is */ - if (!obfuscate && !zero_stale_data) + if (!metadump.obfuscate && !metadump.zero_stale_data) goto done; dirty = xlog_is_dirty(mp, &log, &x, 0); @@ -2933,7 +2951,7 @@ copy_log(void) switch (dirty) { case 0: /* clear out a clean log */ - if (show_progress) + if (metadump.show_progress) print_progress("Zeroing clean log"); logstart = XFS_FSB_TO_DADDR(mp, mp->m_sb.sb_logstart); @@ -2948,7 +2966,7 @@ copy_log(void) break; case 1: /* keep the dirty log */ - if (obfuscate) + if (metadump.obfuscate) print_warning( _("Warning: log recovery of an obfuscated metadata image can leak " "unobfuscated metadata and/or cause image corruption. If possible, " @@ -2956,7 +2974,7 @@ _("Warning: log recovery of an obfuscated metadata image can leak " break; case -1: /* log detection error */ - if (obfuscate) + if (metadump.obfuscate) print_warning( _("Could not discern log; image will contain unobfuscated metadata in log.")); break; @@ -2979,9 +2997,15 @@ metadump_f( char *p; exitcode = 1; - show_progress = 0; - show_warnings = 0; - stop_on_read_error = 0; + + metadump.version = 1; + metadump.show_progress = 0; + metadump.stop_on_read_error = 0; + metadump.max_extent_size = DEFAULT_MAX_EXT_SIZE; + metadump.show_warnings = 0; + metadump.obfuscate = 1; + metadump.zero_stale_data = 1; + metadump.dirty_log = false; if (mp->m_sb.sb_magicnum != XFS_SB_MAGIC) { print_warning("bad superblock magic number %x, giving up", @@ -3002,27 +3026,29 @@ metadump_f( while ((c = getopt(argc, argv, "aegm:ow")) != EOF) { switch (c) { case 'a': - zero_stale_data = 0; + metadump.zero_stale_data = 0; break; case 'e': - stop_on_read_error = 1; + metadump.stop_on_read_error = 1; break; case 'g': - show_progress = 1; + metadump.show_progress = 1; break; case 'm': - max_extent_size = (int)strtol(optarg, &p, 0); - if (*p != '\0' || max_extent_size <= 0) { + metadump.max_extent_size = + (int)strtol(optarg, &p, 0); + if (*p != '\0' || + metadump.max_extent_size <= 0) { print_warning("bad max extent size %s", optarg); return 0; } break; case 'o': - obfuscate = 0; + metadump.obfuscate = 0; break; case 'w': - show_warnings = 1; + metadump.show_warnings = 1; break; default: print_warning("bad option for metadump command"); @@ -3035,21 +3061,6 @@ metadump_f( return 0; } - metablock = (xfs_metablock_t *)calloc(BBSIZE + 1, BBSIZE); - if (metablock == NULL) { - print_warning("memory allocation failure"); - return 0; - } - metablock->mb_blocklog = BBSHIFT; - metablock->mb_magic = cpu_to_be32(XFS_MD_MAGIC); - - /* Set flags about state of metadump */ - metablock->mb_info = XFS_METADUMP_INFO_FLAGS; - if (obfuscate) - metablock->mb_info |= XFS_METADUMP_OBFUSCATED; - if (!zero_stale_data) - metablock->mb_info |= XFS_METADUMP_FULLBLOCKS; - /* If we'll copy the log, see if the log is dirty */ if (mp->m_sb.sb_logstart) { push_cur(); @@ -3060,34 +3071,52 @@ metadump_f( struct xlog log; if (xlog_is_dirty(mp, &log, &x, 0)) - metablock->mb_info |= XFS_METADUMP_DIRTYLOG; + metadump.dirty_log = true; } pop_cur(); } - block_index = (__be64 *)((char *)metablock + sizeof(xfs_metablock_t)); - block_buffer = (char *)metablock + BBSIZE; - num_indices = (BBSIZE - sizeof(xfs_metablock_t)) / sizeof(__be64); + metadump.metablock = (xfs_metablock_t *)calloc(BBSIZE + 1, BBSIZE); + if (metadump.metablock == NULL) { + print_warning("memory allocation failure"); + return -1; + } + metadump.metablock->mb_blocklog = BBSHIFT; + metadump.metablock->mb_magic = cpu_to_be32(XFS_MD_MAGIC); + + /* Set flags about state of metadump */ + metadump.metablock->mb_info = XFS_METADUMP_INFO_FLAGS; + if (metadump.obfuscate) + metadump.metablock->mb_info |= XFS_METADUMP_OBFUSCATED; + if (!metadump.zero_stale_data) + metadump.metablock->mb_info |= XFS_METADUMP_FULLBLOCKS; + if (metadump.dirty_log) + metadump.metablock->mb_info |= XFS_METADUMP_DIRTYLOG; + + metadump.block_index = (__be64 *)((char *)metadump.metablock + + sizeof(xfs_metablock_t)); + metadump.block_buffer = (char *)metadump.metablock + BBSIZE; + metadump.num_indices = (BBSIZE - sizeof(xfs_metablock_t)) / + sizeof(__be64); /* * A metadump block can hold at most num_indices of BBSIZE sectors; * do not try to dump a filesystem with a sector size which does not * fit within num_indices (i.e. within a single metablock). */ - if (mp->m_sb.sb_sectsize > num_indices * BBSIZE) { + if (mp->m_sb.sb_sectsize > metadump.num_indices * BBSIZE) { print_warning("Cannot dump filesystem with sector size %u", mp->m_sb.sb_sectsize); - free(metablock); + free(metadump.metablock); return 0; } - cur_index = 0; start_iocur_sp = iocur_sp; if (strcmp(argv[optind], "-") == 0) { if (isatty(fileno(stdout))) { print_warning("cannot write to a terminal"); - free(metablock); + free(metadump.metablock); return 0; } /* @@ -3111,17 +3140,17 @@ metadump_f( close(outfd); goto out; } - outf = fdopen(outfd, "a"); - if (outf == NULL) { + metadump.outf = fdopen(outfd, "a"); + if (metadump.outf == NULL) { fprintf(stderr, "cannot create dump stream\n"); dup2(outfd, STDOUT_FILENO); close(outfd); goto out; } - stdout_metadump = true; + metadump.stdout_metadump = true; } else { - outf = fopen(argv[optind], "wb"); - if (outf == NULL) { + metadump.outf = fopen(argv[optind], "wb"); + if (metadump.outf == NULL) { print_warning("cannot create dump file"); goto out; } @@ -3148,24 +3177,24 @@ metadump_f( if (!exitcode) exitcode = write_index() < 0; - if (progress_since_warning) - fputc('\n', stdout_metadump ? stderr : stdout); + if (metadump.progress_since_warning) + fputc('\n', metadump.stdout_metadump ? stderr : stdout); - if (stdout_metadump) { - fflush(outf); + if (metadump.stdout_metadump) { + fflush(metadump.outf); fflush(stdout); ret = dup2(outfd, STDOUT_FILENO); if (ret < 0) perror("un-redirecting stdout"); - stdout_metadump = false; + metadump.stdout_metadump = false; } - fclose(outf); + fclose(metadump.outf); /* cleanup iocur stack */ while (iocur_sp > start_iocur_sp) pop_cur(); out: - free(metablock); + free(metadump.metablock); return 0; }
This commit collects all state tracking variables in a new "struct metadump" structure. Signed-off-by: Chandan Babu R <chandan.babu@oracle.com> --- db/metadump.c | 459 +++++++++++++++++++++++++++----------------------- 1 file changed, 244 insertions(+), 215 deletions(-)