This commit collects all state tracking variables in a new "struct metadump"
structure. This is done to collect all the global variables in one place
rather than having them spread across the file. A new structure member of type
"struct metadump_ops *" will be added by a future commit to support the two
versions of metadump.
Reviewed-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Chandan Babu R <chandan.babu@xxxxxxxxxx>
---
db/metadump.c | 458 +++++++++++++++++++++++++++-----------------------
1 file changed, 244 insertions(+), 214 deletions(-)
diff --git a/db/metadump.c b/db/metadump.c
index 14eda688..da91000c 100644
--- a/db/metadump.c
+++ b/db/metadump.c
@@ -41,25 +41,27 @@ 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 bool show_progress = false;
-static bool stop_on_read_error = false;
-static int max_extent_size = DEFAULT_MAX_EXT_SIZE;
-static bool obfuscate = true;
-static bool zero_stale_data = true;
-static bool show_warnings = false;
-static bool progress_since_warning = false;
-static bool stdout_metadump;
+static struct metadump {
+ int version;
+ bool show_progress;
+ bool stop_on_read_error;
+ int max_extent_size;
+ bool show_warnings;
+ bool obfuscate;
+ bool zero_stale_data;
+ bool 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)
@@ -99,9 +101,10 @@ print_warning(const char *fmt, ...)
va_end(ap);
buf[sizeof(buf)-1] = '\0';
- fprintf(stderr, "%s%s: %s\n", progress_since_warning ? "\n" : "",
+ fprintf(stderr, "%s%s: %s\n",
+ metadump.progress_since_warning ? "\n" : "",
progname, buf);
- progress_since_warning = false;
+ metadump.progress_since_warning = false;
}
static void
@@ -119,10 +122,10 @@ 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 = true;
+ metadump.progress_since_warning = true;
}
/*
@@ -137,17 +140,19 @@ 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;
}
@@ -164,9 +169,10 @@ 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;
@@ -389,11 +395,11 @@ 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;
}
@@ -447,7 +453,7 @@ 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;
@@ -456,7 +462,7 @@ 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]),
@@ -483,13 +489,13 @@ 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;
@@ -511,13 +517,13 @@ 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;
@@ -544,7 +550,7 @@ 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;
@@ -553,7 +559,7 @@ 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]),
@@ -583,13 +589,13 @@ 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;
@@ -616,7 +622,7 @@ 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;
@@ -625,7 +631,7 @@ 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]),
@@ -655,13 +661,13 @@ 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;
@@ -773,7 +779,8 @@ 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 */
@@ -783,7 +790,7 @@ 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;
/*
@@ -897,7 +904,7 @@ 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;
}
@@ -907,7 +914,7 @@ 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
@@ -923,9 +930,9 @@ 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);
@@ -939,9 +946,9 @@ 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] -
@@ -949,16 +956,17 @@ 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]);
@@ -968,7 +976,8 @@ 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);
}
@@ -1026,18 +1035,18 @@ 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);
}
@@ -1062,9 +1071,9 @@ 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];
@@ -1074,19 +1083,20 @@ 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',
@@ -1098,7 +1108,8 @@ 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);
}
@@ -1109,7 +1120,7 @@ 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;
@@ -1131,10 +1142,10 @@ 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;
}
}
@@ -1146,7 +1157,7 @@ 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. */
@@ -1229,10 +1240,10 @@ 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;
}
@@ -1252,10 +1263,10 @@ 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)) !=
@@ -1268,7 +1279,7 @@ 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);
@@ -1286,23 +1297,23 @@ 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) -
@@ -1338,7 +1349,7 @@ 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;
@@ -1346,10 +1357,10 @@ 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);
@@ -1416,7 +1427,8 @@ 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)),
@@ -1433,9 +1445,9 @@ 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;
}
@@ -1450,22 +1462,22 @@ 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',
@@ -1477,18 +1489,18 @@ process_attr_block(
zlen = xfs_attr_leaf_entsize_local(nlen, vlen) -
(offsetof(struct xfs_attr_leaf_name_local, nameval) +
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),
@@ -1499,13 +1511,13 @@ process_attr_block(
zlen = xfs_attr_leaf_entsize_remote(nlen) -
(offsetof(struct xfs_attr_leaf_name_remote, name) +
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);
@@ -1538,16 +1550,16 @@ 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);
@@ -1658,12 +1670,12 @@ 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;
@@ -1755,25 +1767,27 @@ 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;
}
@@ -1784,19 +1798,21 @@ 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;
}
@@ -1832,7 +1848,7 @@ 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);
@@ -1843,7 +1859,7 @@ 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;
@@ -1858,7 +1874,7 @@ 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);
@@ -1893,10 +1909,10 @@ 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;
}
@@ -1907,16 +1923,16 @@ 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 */
@@ -1937,11 +1953,11 @@ 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;
}
@@ -1968,14 +1984,16 @@ 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);
@@ -1991,7 +2009,7 @@ 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;
/*
@@ -2003,7 +2021,7 @@ 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;
}
@@ -2035,9 +2053,9 @@ 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;
}
@@ -2049,11 +2067,11 @@ 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,
@@ -2079,17 +2097,17 @@ 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));
}
@@ -2131,7 +2149,8 @@ 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;
@@ -2148,7 +2167,7 @@ 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)
@@ -2208,7 +2227,7 @@ 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;
@@ -2224,7 +2243,7 @@ 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;
@@ -2241,7 +2260,7 @@ 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;
}
@@ -2267,7 +2286,7 @@ 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);
@@ -2297,7 +2316,7 @@ 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);
@@ -2320,7 +2339,7 @@ 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];
@@ -2329,7 +2348,7 @@ 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]),
@@ -2357,13 +2376,13 @@ 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;
@@ -2377,7 +2396,7 @@ 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);
@@ -2385,7 +2404,7 @@ 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;
@@ -2416,11 +2435,11 @@ 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)));
@@ -2438,7 +2457,7 @@ 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))
@@ -2453,7 +2472,7 @@ 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))
@@ -2467,10 +2486,10 @@ 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;
@@ -2493,7 +2512,7 @@ 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))
@@ -2539,7 +2558,7 @@ 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;
@@ -2551,12 +2570,12 @@ 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();
@@ -2592,7 +2611,7 @@ copy_log(void)
int logversion;
int cycle = XLOG_INIT_CYCLE;
- if (show_progress)
+ if (metadump.show_progress)
print_progress("Copying log");
push_cur();
@@ -2601,11 +2620,11 @@ 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);
@@ -2613,7 +2632,7 @@ 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);
@@ -2628,7 +2647,7 @@ 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, "
@@ -2636,7 +2655,7 @@ _("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;
@@ -2659,9 +2678,15 @@ metadump_f(
char *p;
exitcode = 1;
- show_progress = false;
- show_warnings = false;
- stop_on_read_error = false;
+
+ metadump.version = 1;
+ metadump.show_progress = false;
+ metadump.stop_on_read_error = false;
+ metadump.max_extent_size = DEFAULT_MAX_EXT_SIZE;
+ metadump.show_warnings = false;
+ metadump.obfuscate = true;
+ metadump.zero_stale_data = true;
+ metadump.dirty_log = false;
if (mp->m_sb.sb_magicnum != XFS_SB_MAGIC) {
print_warning("bad superblock magic number %x, giving up",
@@ -2682,27 +2707,29 @@ metadump_f(
while ((c = getopt(argc, argv, "aegm:ow")) != EOF) {
switch (c) {
case 'a':
- zero_stale_data = false;
+ metadump.zero_stale_data = false;
break;
case 'e':
- stop_on_read_error = true;
+ metadump.stop_on_read_error = true;
break;
case 'g':
- show_progress = true;
+ metadump.show_progress = true;
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 = false;
+ metadump.obfuscate = false;
break;
case 'w':
- show_warnings = true;
+ metadump.show_warnings = true;
break;
default:
print_warning("bad option for metadump command");
@@ -2715,21 +2742,6 @@ 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();
@@ -2740,34 +2752,52 @@ 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;
}
/*
@@ -2791,17 +2821,17 @@ 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;
}
@@ -2828,24 +2858,24 @@ 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
