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Merge branch 'master' into held-root

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This commit is contained in:
Joe Thornber 2012-05-15 10:02:49 +01:00
commit ae220c977d
27 changed files with 876 additions and 311 deletions
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26
Makefile.in
View File

@ -19,7 +19,8 @@
.PHONY: all
PROGRAMS=\
thin_repair \
thin_debug \
thin_check \
thin_dump \
thin_restore
@ -45,15 +46,15 @@ SOURCE=\
xml_format.cc
PROGRAM_SOURCE=\
thin_check.cc \
thin_dump.cc \
thin_repair.cc \
thin_restore.cc
CXX:=@CXX@
OBJECTS:=$(subst .cc,.o,$(SOURCE))
TOP_DIR:=@top_srcdir@
TOP_BUILDDIR:=@top_builddir@
CXXFLAGS+=-Wall
CXXFLAGS+=-Wall -fno-strict-aliasing
CXXFLAGS+=@CXXOPTIMISE_FLAG@
CXXFLAGS+=@CXXDEBUG_FLAG@
INCLUDES+=-I$(TOP_BUILDDIR) -I$(TOP_DIR)
@ -61,8 +62,8 @@ LIBS:=-lstdc++
LIBEXPAT:=-lexpat
INSTALL:=@INSTALL@
STRIP=
DESTDIR:=@prefix@
BINDIR:=$(DESTDIR)/sbin
PREFIX:=@prefix@
BINDIR:=$(DESTDIR)$(PREFIX)/sbin
MANPATH:=$(DESTDIR)$(MANDIR)
vpath %.cc $(TOP_DIR)
@ -85,9 +86,10 @@ test-programs: $(TEST_PROGRAMS)
%.o: %.cc
$(CXX) -c $(INCLUDES) $(CXXFLAGS) -o $@ $<
THIN_DEBUG_SOURCE=$(SOURCE)
THIN_DUMP_SOURCE=$(SOURCE)
THIN_RESTORE_SOURCE=$(SOURCE)
THIN_REPAIR_SOURCE=\
THIN_CHECK_SOURCE=\
checksum.cc \
endian_utils.cc \
error_set.cc \
@ -101,9 +103,13 @@ THIN_REPAIR_SOURCE=\
space_map_transactional.cc \
transaction_manager.cc
THIN_DEBUG_OBJECTS=$(subst .cc,.o,$(THIN_DEBUG_SOURCE))
THIN_DUMP_OBJECTS=$(subst .cc,.o,$(THIN_DUMP_SOURCE))
THIN_RESTORE_OBJECTS=$(subst .cc,.o,$(THIN_RESTORE_SOURCE))
THIN_REPAIR_OBJECTS=$(subst .cc,.o,$(THIN_REPAIR_SOURCE))
THIN_CHECK_OBJECTS=$(subst .cc,.o,$(THIN_CHECK_SOURCE))
thin_debug: $(THIN_DEBUG_OBJECTS) thin_debug.o
$(CXX) $(CXXFLAGS) -o $@ $+ $(LIBS) $(LIBEXPAT)
thin_dump: $(THIN_DUMP_OBJECTS) thin_dump.o
$(CXX) $(CXXFLAGS) -o $@ $+ $(LIBS) $(LIBEXPAT)
@ -111,7 +117,7 @@ thin_dump: $(THIN_DUMP_OBJECTS) thin_dump.o
thin_restore: $(THIN_RESTORE_OBJECTS) thin_restore.o
$(CXX) $(CXXFLAGS) -o $@ $+ $(LIBS) $(LIBEXPAT)
thin_repair: $(THIN_REPAIR_OBJECTS) thin_repair.o
thin_check: $(THIN_CHECK_OBJECTS) thin_check.o
$(CXX) $(CXXFLAGS) -o $@ $+ $(LIBS)
clean:
@ -122,11 +128,11 @@ distclean: clean
install: $(PROGRAMS)
$(INSTALL_DIR) $(BINDIR)
$(INSTALL_PROGRAM) thin_repair $(BINDIR)/thin_repair
$(INSTALL_PROGRAM) thin_check $(BINDIR)/thin_check
$(INSTALL_PROGRAM) thin_dump $(BINDIR)/thin_dump
$(INSTALL_PROGRAM) thin_restore $(BINDIR)/thin_restore
$(INSTALL_DIR) $(MANPATH)/man8
$(INSTALL_DATA) man8/thin_repair.8 $(MANPATH)/man8/thin_repair.8
$(INSTALL_DATA) man8/thin_check.8 $(MANPATH)/man8/thin_check.8
$(INSTALL_DATA) man8/thin_dump.8 $(MANPATH)/man8/thin_dump.8
$(INSTALL_DATA) man8/thin_restore.8 $(MANPATH)/man8/thin_restore.8
.PHONY: install

2
VERSION
View File

@ -1 +1 @@
0.0.1-github(0) (2011-12-06)
0.1.4+

6
btree.tcc
View File

@ -18,11 +18,13 @@
#include "btree.h"
#include "errors.h"
#include "checksum.h"
#include "transaction_manager.h"
#include <iostream>
using namespace base;
using namespace btree_detail;
using namespace persistent_data;
using namespace std;
@ -37,10 +39,10 @@ namespace {
crc32c sum(BTREE_CSUM_XOR);
sum.append(&n->flags, MD_BLOCK_SIZE - sizeof(uint32_t));
if (sum.get_sum() != to_cpu<uint32_t>(n->csum))
throw runtime_error("bad checksum in btree node");
throw checksum_error("bad checksum in btree node");
if (to_cpu<uint64_t>(n->blocknr) != location)
throw runtime_error("bad block nr in btree node");
throw checksum_error("bad block nr in btree node");
}
virtual void prepare(block_manager<>::buffer &b, block_address location) const {

167
btree_checker.h
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@ -51,81 +51,39 @@ namespace persistent_data {
// Not implemented
// ---------------
//
// - checksum
// - leaf | internal flags (this can be inferred from siblings)
//----------------------------------------------------------------
template <uint32_t Levels, typename ValueTraits>
class btree_checker : public btree<Levels, ValueTraits>::visitor {
public:
btree_checker(block_counter &counter)
btree_checker(block_counter &counter, bool avoid_repeated_visits = true)
: counter_(counter),
errs_(new error_set("btree errors")) {
errs_(new error_set("btree errors")),
avoid_repeated_visits_(avoid_repeated_visits) {
}
bool visit_internal(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
if (already_visited(n))
return false;
check_sum(n);
if (sub_root)
new_root(level);
check_block_nr(n);
check_max_entries(n);
check_nr_entries(n, sub_root);
check_ordered_keys(n);
check_parent_key(sub_root ? optional<uint64_t>() : key, n);
return true;
return check_internal(level, sub_root, key, n);
}
bool visit_internal_leaf(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
if (already_visited(n))
return false;
check_sum(n);
if (sub_root)
new_root(level);
check_block_nr(n);
check_max_entries(n);
check_nr_entries(n, sub_root);
check_ordered_keys(n);
check_parent_key(sub_root ? optional<uint64_t>() : key, n);
check_leaf_key(level, n);
return true;
return check_leaf(level, sub_root, key, n);
}
bool visit_leaf(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<ValueTraits> const &n) {
if (already_visited(n))
return false;
check_sum(n);
if (sub_root)
new_root(level);
check_block_nr(n);
check_max_entries(n);
check_nr_entries(n, sub_root);
check_ordered_keys(n);
check_parent_key(sub_root ? optional<uint64_t>() : key, n);
check_leaf_key(level, n);
return true;
return check_leaf(level, sub_root, key, n);
}
boost::optional<error_set::ptr> get_errors() const {
error_set::ptr get_errors() const {
return errs_;
}
@ -135,21 +93,66 @@ namespace persistent_data {
}
private:
bool check_internal(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
if (!already_visited(n) &&
check_sum(n) &&
check_block_nr(n) &&
check_max_entries(n) &&
check_nr_entries(n, sub_root) &&
check_ordered_keys(n) &&
check_parent_key(sub_root ? optional<uint64_t>() : key, n)) {
if (sub_root)
new_root(level);
return true;
}
return false;
}
template <typename ValueTraits2>
bool check_leaf(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<ValueTraits2> const &n) {
if (!already_visited(n) &&
check_sum(n) &&
check_block_nr(n) &&
check_max_entries(n) &&
check_nr_entries(n, sub_root) &&
check_ordered_keys(n) &&
check_parent_key(sub_root ? optional<uint64_t>() : key, n)) {
if (sub_root)
new_root(level);
return check_leaf_key(level, n);
}
return false;
}
template <typename node>
bool already_visited(node const &n) {
block_address b = n.get_location();
counter_.inc(b);
if (seen_.count(b) > 0)
return true;
if (avoid_repeated_visits_) {
if (seen_.count(b) > 0)
return true;
seen_.insert(b);
}
seen_.insert(b);
return false;
}
template <typename node>
void check_sum(node const &n) const {
bool check_sum(node const &n) const {
crc32c sum(BTREE_CSUM_XOR);
disk_node const *data = n.raw();
@ -160,48 +163,55 @@ namespace persistent_data {
<< ", sum was " << sum.get_sum()
<< ", on disk " << n.get_checksum();
errs_->add_child(out.str());
throw runtime_error(out.str());
return false;
}
return true;
}
template <typename node>
void check_block_nr(node const &n) const {
bool check_block_nr(node const &n) const {
if (n.get_location() != n.get_block_nr()) {
std::ostringstream out;
out << "block number mismatch: actually "
<< n.get_location()
<< ", claims " << n.get_block_nr();
errs_->add_child(out.str());
throw runtime_error(out.str());
return false;
}
return true;
}
template <typename node>
void check_max_entries(node const &n) const {
bool check_max_entries(node const &n) const {
size_t elt_size = sizeof(uint64_t) + n.get_value_size();
if (elt_size * n.get_max_entries() + sizeof(node_header) > MD_BLOCK_SIZE) {
std::ostringstream out;
out << "max entries too large: " << n.get_max_entries();
errs_->add_child(out.str());
return false;
}
if (n.get_max_entries() % 3) {
std::ostringstream out;
out << "max entries is not divisible by 3: " << n.get_max_entries();
errs_->add_child(out.str());
throw runtime_error(out.str());
return false;
}
return true;
}
template <typename node>
void check_nr_entries(node const &n, bool is_root) const {
bool check_nr_entries(node const &n, bool is_root) const {
if (n.get_nr_entries() > n.get_max_entries()) {
std::ostringstream out;
out << "bad nr_entries: "
<< n.get_nr_entries() << " < "
<< n.get_max_entries();
errs_->add_child(out.str());
throw std::runtime_error(out.str());
return false;
}
block_address min = n.get_max_entries() / 3;
@ -213,16 +223,18 @@ namespace persistent_data {
<< min
<< "(max_entries = " << n.get_max_entries() << ")";
errs_->add_child(out.str());
throw runtime_error(out.str());
return false;
}
return true;
}
template <typename node>
void check_ordered_keys(node const &n) const {
bool check_ordered_keys(node const &n) const {
unsigned nr_entries = n.get_nr_entries();
if (nr_entries == 0)
return; // can only happen if a root node
return true; // can only happen if a root node
uint64_t last_key = n.key_at(0);
@ -231,50 +243,59 @@ namespace persistent_data {
if (k <= last_key) {
ostringstream out;
out << "keys are out of order, " << k << " <= " << last_key;
throw runtime_error(out.str());
errs_->add_child(out.str());
return false;
}
last_key = k;
}
return true;
}
template <typename node>
void check_parent_key(boost::optional<uint64_t> key, node const &n) const {
bool check_parent_key(boost::optional<uint64_t> key, node const &n) const {
if (!key)
return;
return true;
if (*key > n.key_at(0)) {
ostringstream out;
out << "parent key mismatch: parent was " << *key
<< ", but lowest in node was " << n.key_at(0);
throw runtime_error(out.str());
errs_->add_child(out.str());
return false;
}
return true;
}
template <typename node>
void check_leaf_key(unsigned level, node const &n) {
bool check_leaf_key(unsigned level, node const &n) {
if (n.get_nr_entries() == 0)
return; // can only happen if a root node
return true; // can only happen if a root node
if (last_leaf_key_[level] && *last_leaf_key_[level] >= n.key_at(0)) {
ostringstream out;
out << "the last key of the previous leaf was " << *last_leaf_key_[level]
<< " and the first key of this leaf is " << n.key_at(0);
throw runtime_error(out.str());
errs_->add_child(out.str());
return false;
}
last_leaf_key_[level] = n.key_at(n.get_nr_entries() - 1);
return true;
}
void new_root(unsigned level) {
// we're starting a new subtree, so should
// reset the last_leaf value.
last_leaf_key_[level] = boost::optional<uint64_t>();
// we're starting a new subtree, so should
// reset the last_leaf value.
last_leaf_key_[level] = boost::optional<uint64_t>();
}
block_counter &counter_;
std::set<block_address> seen_;
error_set::ptr errs_;
boost::optional<uint64_t> last_leaf_key_[Levels];
bool avoid_repeated_visits_;
};
}

3
emitter.h
View File

@ -47,7 +47,8 @@ namespace thin_provisioning {
virtual void begin_superblock(std::string const &uuid,
uint64_t time,
uint64_t trans_id,
uint32_t data_block_size) = 0;
uint32_t data_block_size,
uint64_t nr_data_blocks) = 0;
virtual void end_superblock() = 0;
virtual void begin_device(uint32_t dev_id,

13
endian_utils.h
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@ -19,6 +19,7 @@
#ifndef ENDIAN_H
#define ENDIAN_H
#include <endian.h>
#include <stdint.h>
#include <boost/static_assert.hpp>
@ -69,32 +70,32 @@ namespace base {
template <>
inline uint16_t to_cpu<uint16_t, __le16>(__le16 const &d) {
return d.v_;
return le16toh(d.v_);
}
template <>
inline __le16 to_disk<__le16, uint16_t>(uint16_t const &v) {
return __le16(v);
return __le16(htole16(v));
}
template <>
inline uint32_t to_cpu<uint32_t, __le32>(__le32 const &d) {
return d.v_;
return le32toh(d.v_);
}
template <>
inline __le32 to_disk<__le32, uint32_t>(uint32_t const &v) {
return __le32(v);
return __le32(htole32(v));
}
template <>
inline uint64_t to_cpu<uint64_t, __le64>(__le64 const &d) {
return d.v_;
return le64toh(d.v_);
}
template <>
inline __le64 to_disk<__le64, uint64_t>(uint64_t const &v) {
return __le64(v);
return __le64(htole64(v));
}
//--------------------------------

6
error_set.cc
View File

@ -61,6 +61,12 @@ error_set::add_child(string const &err)
add_child(e);
}
bool
error_set::empty() const
{
return !children_.size();
}
//--------------------------------
namespace {

1
error_set.h
View File

@ -43,6 +43,7 @@ namespace persistent_data {
void add_child(error_set::ptr err);
void add_child(boost::optional<error_set::ptr> maybe_errs);
void add_child(std::string const &err);
bool empty() const;
private:
std::string err_;

37
errors.h Normal file
View File

@ -0,0 +1,37 @@
// Copyright (C) 2012 Red Hat, Inc. All rights reserved.
//
// This file is part of the thin-provisioning-tools source.
//
// thin-provisioning-tools is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// thin-provisioning-tools is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with thin-provisioning-tools. If not, see
// <http://www.gnu.org/licenses/>.
#ifndef THINP_EXCEPTION_H
#define THINP_EXCEPTION_H
#include <stdexcept>
//----------------------------------------------------------------
namespace base {
class checksum_error : public std::runtime_error {
public:
explicit checksum_error(std::string const &what)
: std::runtime_error(what) {
}
};
}
//----------------------------------------------------------------
#endif

4
human_readable_format.cc
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@ -35,11 +35,13 @@ namespace {
void begin_superblock(string const &uuid,
uint64_t time,
uint64_t trans_id,
uint32_t data_block_size) {
uint32_t data_block_size,
uint64_t nr_data_blocks) {
out_ << "begin superblock: \"" << uuid << "\""
<< ", " << time
<< ", " << trans_id
<< ", " << data_block_size
<< ", " << nr_data_blocks
<< endl;
}

51
man8/thin_check.8 Normal file
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@ -0,0 +1,51 @@
.TH THIN_REPAIR 8 "Thin Provisioning Tools" "Red Hat, Inc." \" -*- nroff -*-
.SH NAME
thin_check \- repair thin provisioning metadata on device or file
.SH SYNOPSIS
.B thin_check
.RB [ options ]
.I {device|file}
.SH DESCRIPTION
.B thin_check
checks thin provisioning metadata created by
the device-mapper thin provisioning target on a
.I device
or
.I file.
See
.B thin_dump(8)
how to dump metadata to a file.
.SH OPTIONS
.IP "\fB\-q, \-\-quiet\fP"
Suppress output messages, return only exit code.
.IP "\fB\-h, \-\-help\fP"
Print help and exit.
.IP "\fB\-V, \-\-version\fP"
Output version information and exit.
.SH EXAMPLE
Analyses and repairs thin provisioning metadata on logical volume
/dev/vg/metadata:
.sp
.B thin_check /dev/vg/metadata
The device may not be actively used by the target
when repairing!
.SH DIAGNOSTICS
.B thin_check
returns an exit code of 0 for success or 1 for error.
.SH SEE ALSO
.B thin_dump(8)
.B thin_restore(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>
.br
Heinz Mauelshagen <HeinzM@RedHat.com>

46
man8/thin_dump.8
View File

@ -3,41 +3,49 @@
thin_dump \- dump thin provisioning metadata from device or file to standard output
.SH SYNOPSIS
.B thin_dump [options] {metadata device|file}
.B thin_dump
.RB [options]
.I {metadata device|file}
.SH DESCRIPTION
thin_dump dumps thin provisioning metadata created by the device-mapper
.B thin_dump
dumps thin provisioning metadata created by the device-mapper
thin provisioning target on a device or file to standard output for
analysis or postprocessing in either XML or human readable format.
XML formated metadata can be fed into thin_restore (see
.B thin_restore(8)
) in order to put it back onto a metadata device (to process by
.BR thin_restore(8) )
in order to put it back onto a metadata device (to process by
the device-mapper target) or file.
.B thin_dump
{-i|--input} {device|file}
[{-f|--format} {xml|human_readable}]
.IP "\fB\-f, \-\-format\fP \fI{xml|human_readable}\fP".
Print output in XML or human readable format.
.B thin_dump
{-h|--help}
.IP "\fB\-r, \-\-repair\fP".
.B thin_dump
{-V|--version}
.IP "\fB\-h, \-\-help\fP".
Print help and exit.
.IP "\fB\-V, \-\-version\fP".
Output version information and exit.
.SH EXAMPLES
"thin_dump -f human_redable -i /dev/vg/metadata"
dumps the thin provisioning metadata on logical volume /dev/vg/metadata
to standard output in human readable format.
Dumps the thin provisioning metadata on logical volume /dev/vg/metadata
to standard output in human readable format:
.sp
.B thin_dump -f human_redable /dev/vg/metadata
"thin_dump /dev/vg/metadata"
dumps the thin provisioning metadata on logical volume /dev/vg/metadata
to standard output in XML format.
Dumps the thin provisioning metadata on logical volume /dev/vg/metadata
to standard output in XML format:
.sp
.B thin_dump /dev/vg/metadata
.SH DIAGNOSTICS
thin_dump returns an exit code of 0 for success or 1 for error.
.B thin_dump
returns an exit code of 0 for success or 1 for error.
.SH SEE ALSO
.B thin_repair(8), thin_restore(8)
.B thin_check(8)
.B thin_restore(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>

38
man8/thin_repair.8
View File

@ -1,38 +0,0 @@
.TH THIN_REPAIR 8 "Thin Provisioning Tools" "Red Hat, Inc." \" -*- nroff -*-
.SH NAME
thin_repair \- repair thin provisioning metadata on device or file
.SH SYNOPSIS
.B thin_repair {device|file}
.SH DESCRIPTION
thin_repair checks thin provisioning metadata created by
the device-mapper thin provisioning target on a device or file (see
.B thin_dump(8)
) on how to dump metadata to a file.
A future release will be able to fix faulty metadata.
.B thin_repair (device|file}
.B thin_repair
{-h|--help}
.B thin_dump
{-V|--version}
.SH EXAMPLE
"thin_repair /dev/vg/metadata"
analyses and repairs thin provisioning metadata on logical volume
/dev/vg/metadata. The device may not be actively used by the target
when repairing!
.SH DIAGNOSTICS
thin_repair returns an exit code of 0 for success or 1 for error.
.SH SEE ALSO
.B thin_dump(8), thin_restore(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>
.br
Heinz Mauelshagen <HeinzM@RedHat.com>

46
man8/thin_restore.8
View File

@ -3,37 +3,49 @@
thin_restore \- restore thin provisioning metadata file to device or file
.SH SYNOPSIS
.B thin_restore [options] file {metadata device|file}
.B thin_restore
.RB [ options ]
.RB -i
.I {device|file}
.RB -o
.I {device|file}
.SH DESCRIPTION
thin_restore restores thin provisioning metadata created by the
respective device-mapper target dumped into an XML formated (see
.B thin_dump(8)
) file, which optionally can be preproccessed to another device or file.
.B thin_restore
restores thin provisioning metadata created by the
respective device-mapper target dumped into an XML formatted (see
.BR thin_dump(8) )
file, which optionally can be preprocessed to another device or file.
If restored to a metadata device, the metadata can be processed
by the device-mapper target.
.B thin_restore
{-i|--input} {device|file}
{-o|--output} {device|file}
.IP "\fB\-i, \-\-input\fP \fI{device|file}\fP"
Input file or device with metadata.
.B thin_restore
-h|--help
.IP "\fB\-o, \-\-output\fP \fI{device|file}\fP"
Output file or device.
.B thin_dump
{-V|--version}
.IP "\fB\-h, \-\-help\fP"
Print help and exit.
.IP "\fB\-V, \-\-version\fP"
Output version information and exit.
.SH EXAMPLE
"thin_restore -i metadata -o /dev/vg/metadata"
restores the XML formatted thin provisioning metadata on file "metadata"
Restores the XML formatted thin provisioning metadata on file
.B metadata
to logical volume /dev/vg/metadata for further processing by the
respective device-mapper target.
respective device-mapper target:
.sp
.B thin_restore -i metadata -o /dev/vg/metadata
.SH DIAGNOSTICS
thin_dump returns an exit code of 0 for success or 1 for error.
.B thin_dump
returns an exit code of 0 for success or 1 for error.
.SH SEE ALSO
.B thin_dump(8), thin_repair(8)
.B thin_dump(8)
.B thin_check(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>

6
metadata.cc
View File

@ -45,7 +45,7 @@ namespace {
crc32c sum(SUPERBLOCK_CSUM_SEED);
sum.append(&sbd->flags_, MD_BLOCK_SIZE - sizeof(uint32_t));
if (sum.get_sum() != to_cpu<uint32_t>(sbd->csum_))
throw runtime_error("bad checksum in superblock");
throw checksum_error("bad checksum in superblock");
}
virtual void prepare(block_manager<>::buffer &b, block_address location) const {
@ -65,8 +65,8 @@ namespace {
if (r)
throw runtime_error("Couldn't stat dev path");
if (S_ISREG(info.st_mode))
nr_blocks = div_down<block_address>(info.st_size, MD_BLOCK_SIZE);
if (S_ISREG(info.st_mode) && info.st_size)
nr_blocks = div_up<block_address>(info.st_size, MD_BLOCK_SIZE);
else if (S_ISBLK(info.st_mode)) {
// To get the size of a block device we need to

56
metadata_checker.cc
View File

@ -27,26 +27,30 @@ namespace {
// devices having mappings defined, which can later be cross
// referenced with the details tree. A separate block_counter is
// used to later verify the data space map.
class mapping_validator : public btree_checker<2, block_traits> {
class mapping_validator : public btree<2, block_traits>::visitor {
public:
typedef boost::shared_ptr<mapping_validator> ptr;
typedef btree_checker<2, block_traits> checker;
mapping_validator(block_counter &metadata_counter, block_counter &data_counter)
: btree_checker<2, block_traits>(metadata_counter),
data_counter_(data_counter) {
: checker_(metadata_counter),
data_counter_(data_counter)
{
}
bool visit_internal(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
return checker_.visit_internal(level, sub_root, key, n);
}
// Sharing can only occur in level 1 nodes.
// FIXME: not true once we start having held roots.
bool visit_internal_leaf(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
bool r = btree_checker<2, block_traits>::visit_internal_leaf(level, sub_root, key, n);
if (!r && level == 0) {
throw runtime_error("unexpected sharing in level 0 of mapping tree.");
}
bool r = checker_.visit_internal_leaf(level, sub_root, key, n);
for (unsigned i = 0; i < n.get_nr_entries(); i++)
devices_.insert(n.key_at(i));
@ -58,7 +62,7 @@ namespace {
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<block_traits> const &n) {
bool r = btree_checker<2, block_traits>::visit_leaf(level, sub_root, key, n);
bool r = checker_.visit_leaf(level, sub_root, key, n);
if (r)
for (unsigned i = 0; i < n.get_nr_entries(); i++)
@ -72,29 +76,46 @@ namespace {
}
private:
checker checker_;
block_counter &data_counter_;
set<uint64_t> devices_;
};
class details_validator : public btree_checker<1, device_details_traits> {
class details_validator : public btree<1, device_details_traits>::visitor {
public:
typedef boost::shared_ptr<details_validator> ptr;
typedef btree_checker<1, device_details_traits> checker;
details_validator(block_counter &counter)
: btree_checker<1, device_details_traits>(counter) {
: checker_(counter) {
}
bool visit_internal(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
return checker_.visit_internal(level, sub_root, key, n);
}
bool visit_internal_leaf(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
return checker_.visit_internal_leaf(level, sub_root, key, n);
}
bool visit_leaf(unsigned level,
bool sub_root,
optional<uint64_t> key,
btree_detail::node_ref<device_details_traits> const &n) {
bool r = btree_checker<1, device_details_traits>::visit_leaf(level, sub_root, key, n);
if (r)
for (unsigned i = 0; i < n.get_nr_entries(); i++)
devices_.insert(n.key_at(i));
if (!checker_.visit_leaf(level, sub_root, key, n))
return false;
return r;
for (unsigned i = 0; i < n.get_nr_entries(); i++)
devices_.insert(n.key_at(i));
return true;
}
set<uint64_t> const &get_devices() const {
@ -102,6 +123,7 @@ namespace {
}
private:
checker checker_;
set<uint64_t> devices_;
};

4
metadata_disk_structures.cc
View File

@ -46,7 +46,7 @@ void
superblock_traits::unpack(superblock_disk const &disk, superblock &value)
{
value.csum_ = to_cpu<uint32_t>(disk.csum_);
value.flags_ = to_cpu<uint32_t>(disk.csum_);
value.flags_ = to_cpu<uint32_t>(disk.flags_);
value.blocknr_ = to_cpu<uint64_t>(disk.blocknr_);
::memcpy(value.uuid_, disk.uuid_, sizeof(value.uuid_));
@ -79,7 +79,7 @@ void
superblock_traits::pack(superblock const &value, superblock_disk &disk)
{
disk.csum_ = to_disk<__le32>(value.csum_);
disk.flags_ = to_disk<__le32>(value.csum_);
disk.flags_ = to_disk<__le32>(value.flags_);
disk.blocknr_ = to_disk<__le64>(value.blocknr_);
::memcpy(disk.uuid_, value.uuid_, sizeof(disk.uuid_));

69
metadata_dumper.cc
View File

@ -27,28 +27,48 @@ namespace {
class mappings_extractor : public btree<2, block_traits>::visitor {
public:
typedef boost::shared_ptr<mappings_extractor> ptr;
typedef btree_checker<2, block_traits> checker;
mappings_extractor(uint64_t dev_id, emitter::ptr e,
space_map::ptr md_sm, space_map::ptr data_sm)
: dev_id_(dev_id),
: counter_(),
checker_(counter_),
dev_id_(dev_id),
e_(e),
md_sm_(md_sm),
data_sm_(data_sm),
in_range_(false) {
in_range_(false),
found_errors_(false) {
}
bool visit_internal(unsigned level, bool sub_root, boost::optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
if (!checker_.visit_internal(level, sub_root, key, n)) {
found_errors_ = true;
return false;
}
return (sub_root && key) ? (*key == dev_id_) : true;
}
bool visit_internal_leaf(unsigned level, bool sub_root, boost::optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
if (!checker_.visit_internal_leaf(level, sub_root, key, n)) {
found_errors_ = true;
return false;
}
return true;
}
bool visit_leaf(unsigned level, bool sub_root, boost::optional<uint64_t> maybe_key,
btree_detail::node_ref<block_traits> const &n) {
if (!checker_.visit_leaf(level, sub_root, maybe_key, n)) {
found_errors_ = true;
return false;
}
for (unsigned i = 0; i < n.get_nr_entries(); i++) {
block_time bt = n.value_at(i);
add_mapping(n.key_at(i), bt.block_, bt.time_);
@ -57,11 +77,14 @@ namespace {
return true;
}
void visit_complete() {
end_mapping();
}
bool corruption() const {
return !checker_.get_errors()->empty();
}
private:
void start_mapping(uint64_t origin_block, uint64_t dest_block, uint32_t time) {
origin_start_ = origin_block;
@ -97,6 +120,9 @@ namespace {
}
}
// Declaration order of counter_ and checker_ is important.
block_counter counter_;
checker checker_;
uint64_t dev_id_;
emitter::ptr e_;
space_map::ptr md_sm_;
@ -105,28 +131,34 @@ namespace {
bool in_range_;
uint64_t origin_start_, dest_start_, len_;
uint32_t time_;
bool found_errors_;
};
class details_extractor : public btree<1, device_details_traits>::visitor {
public:
typedef boost::shared_ptr<details_extractor> ptr;
typedef btree_checker<1, device_details_traits> checker;
details_extractor() {
details_extractor()
: counter_(),
checker_(counter_, false) {
}
bool visit_internal(unsigned level, bool sub_root, boost::optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
return true;
return checker_.visit_internal(level, sub_root, key, n);
}
bool visit_internal_leaf(unsigned level, bool sub_root, boost::optional<uint64_t> key,
btree_detail::node_ref<uint64_traits> const &n) {
return true;
return checker_.visit_internal_leaf(level, sub_root, key, n);
}
bool visit_leaf(unsigned level, bool sub_root, boost::optional<uint64_t> maybe_key,
btree_detail::node_ref<device_details_traits> const &n) {
if (!checker_.visit_leaf(level, sub_root, maybe_key, n))
return false;
for (unsigned i = 0; i < n.get_nr_entries(); i++)
devices_.insert(make_pair(n.key_at(i), n.value_at(i)));
@ -137,7 +169,14 @@ namespace {
return devices_;
}
bool corruption() const {
return !checker_.get_errors()->empty();
}
private:
// Declaration order of counter_ and checker_ is important.
block_counter counter_;
checker checker_;
map<uint64_t, device_details> devices_;
};
}
@ -145,13 +184,19 @@ namespace {
//----------------------------------------------------------------
void
thin_provisioning::metadata_dump(metadata::ptr md, emitter::ptr e)
thin_provisioning::metadata_dump(metadata::ptr md, emitter::ptr e, bool repair)
{
e->begin_superblock("", md->sb_.time_, md->sb_.trans_id_, md->sb_.data_block_size_);
e->begin_superblock("", md->sb_.time_,
md->sb_.trans_id_,
md->sb_.data_block_size_,
md->data_sm_->get_nr_blocks());
details_extractor::ptr de(new details_extractor);
md->details_->visit(de);
if (de->corruption() && !repair)
throw runtime_error("corruption in device details tree");
map<uint64_t, device_details> const &devs = de->get_devices();
map<uint64_t, device_details>::const_iterator it, end = devs.end();
@ -168,6 +213,12 @@ thin_provisioning::metadata_dump(metadata::ptr md, emitter::ptr e)
mappings_extractor::ptr me(new mappings_extractor(dev_id, e, md->metadata_sm_, md->data_sm_));
md->mappings_->visit(me);
if (me->corruption() && !repair) {
ostringstream out;
out << "corruption in mappings for device " << dev_id;
throw runtime_error(out.str());
}
e->end_device();
}

5
metadata_dumper.h
View File

@ -25,7 +25,10 @@
//----------------------------------------------------------------
namespace thin_provisioning {
void metadata_dump(metadata::ptr md, emitter::ptr e);
// Set the @repair flag if your metadata is corrupt, and you'd like
// the dumper to do it's best to recover info. If not set, any
// corruption encountered will cause an exception to be thrown.
void metadata_dump(metadata::ptr md, emitter::ptr e, bool repair);
}
//----------------------------------------------------------------

0
mk_release Normal file → Executable file
View File

9
restore_emitter.cc
View File

@ -33,15 +33,13 @@ namespace {
}
virtual ~restorer() {
if (in_superblock_) {
throw runtime_error("still in superblock");
}
}
virtual void begin_superblock(std::string const &uuid,
uint64_t time,
uint64_t trans_id,
uint32_t data_block_size) {
uint32_t data_block_size,
uint64_t nr_data_blocks) {
in_superblock_ = true;
superblock &sb = md_->sb_;
@ -49,6 +47,7 @@ namespace {
sb.time_ = time;
sb.trans_id_ = trans_id;
sb.data_block_size_ = data_block_size;
md_->data_sm_->extend(nr_data_blocks);
}
virtual void end_superblock() {
@ -72,7 +71,7 @@ namespace {
// Add entry to the details tree
uint64_t key[1] = {dev};
device_details details = {mapped_blocks, trans_id, creation_time, snap_time};
device_details details = {mapped_blocks, trans_id, (uint32_t)creation_time, (uint32_t)snap_time};
md_->details_->insert(key, details);
// Insert an empty mapping tree

8
space_map_disk.cc
View File

@ -43,10 +43,10 @@ namespace {
crc32c sum(BITMAP_CSUM_XOR);
sum.append(&data->not_used, MD_BLOCK_SIZE - sizeof(uint32_t));
if (sum.get_sum() != to_cpu<uint32_t>(data->csum))
throw runtime_error("bad checksum in space map bitmap");
throw checksum_error("bad checksum in space map bitmap");
if (to_cpu<uint64_t>(data->blocknr) != location)
throw runtime_error("bad block nr in space map bitmap");
throw checksum_error("bad block nr in space map bitmap");
}
virtual void prepare(block_manager<>::buffer &b, block_address location) const {
@ -75,10 +75,10 @@ namespace {
crc32c sum(INDEX_CSUM_XOR);
sum.append(&mi->padding_, MD_BLOCK_SIZE - sizeof(uint32_t));
if (sum.get_sum() != to_cpu<uint32_t>(mi->csum_))
throw runtime_error("bad checksum in metadata index block");
throw checksum_error("bad checksum in metadata index block");
if (to_cpu<uint64_t>(mi->blocknr_) != location)
throw runtime_error("bad block nr in metadata index block");
throw checksum_error("bad block nr in metadata index block");
}
virtual void prepare(block_manager<>::buffer &b, block_address location) const {

60
thin_repair.cc → thin_check.cc
View File

@ -29,31 +29,41 @@ using namespace std;
using namespace thin_provisioning;
namespace {
int check(string const &path) {
metadata::ptr md(new metadata(path, metadata::OPEN));
int check(string const &path, bool quiet) {
try {
metadata::ptr md(new metadata(path, metadata::OPEN));
optional<error_set::ptr> maybe_errors = metadata_check(md);
if (maybe_errors) {
cerr << error_selector(*maybe_errors, 3);
optional<error_set::ptr> maybe_errors = metadata_check(md);
if (maybe_errors) {
if (!quiet)
cerr << error_selector(*maybe_errors, 3);
return 1;
}
} catch (std::exception &e) {
if (!quiet)
cerr << e.what() << endl;
return 1;
}
return 0;
}
void usage(string const &cmd) {
cerr << "Usage: " << cmd << " {device|file}" << endl;
cerr << "Options:" << endl;
cerr << " {-h|--help}" << endl;
cerr << " {-V|--version}" << endl;
void usage(ostream &out, string const &cmd) {
out << "Usage: " << cmd << " [options] {device|file}" << endl
<< "Options:" << endl
<< " {-q|--quiet}" << endl
<< " {-h|--help}" << endl
<< " {-V|--version}" << endl;
}
}
int main(int argc, char **argv)
{
int c;
const char shortopts[] = "hV";
bool quiet = false;
const char shortopts[] = "qhV";
const struct option longopts[] = {
{ "quiet", no_argument, NULL, 'q'},
{ "help", no_argument, NULL, 'h'},
{ "version", no_argument, NULL, 'V'},
{ NULL, no_argument, NULL, 0 }
@ -61,19 +71,29 @@ int main(int argc, char **argv)
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
switch(c) {
case 'h':
usage(basename(argv[0]));
return 0;
case 'V':
cerr << THIN_PROVISIONING_TOOLS_VERSION << endl;
return 0;
case 'h':
usage(cout, basename(argv[0]));
return 0;
case 'q':
quiet = true;
break;
case 'V':
cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
return 0;
default:
usage(cerr, basename(argv[0]));
return 1;
}
}
if (argc != 2) {
usage(basename(argv[0]));
if (argc == optind) {
cerr << "No input file provided." << endl;
usage(cerr, basename(argv[0]));
exit(1);
}
return check(argv[1]);
return check(argv[optind], quiet);
}

345
thin_debug.cc Normal file
View File

@ -0,0 +1,345 @@
// Copyright (C) 2012 Red Hat, Inc. All rights reserved.
//
// This file is part of the thin-provisioning-tools source.
//
// thin-provisioning-tools is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// thin-provisioning-tools is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with thin-provisioning-tools. If not, see
// <http://www.gnu.org/licenses/>.
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/variant.hpp>
#include <getopt.h>
#include <iostream>
#include <libgen.h>
#include <map>
#include <string>
#include <vector>
#include "btree.h"
#include "metadata.h"
#include "metadata_checker.h"
#include "version.h"
using namespace boost;
using namespace persistent_data;
using namespace std;
using namespace thin_provisioning;
namespace {
typedef vector<string> strings;
class formatter {
public:
typedef shared_ptr<formatter> ptr;
virtual ~formatter() {}
typedef optional<string> maybe_string;
void field(string const &name, string const &value) {
fields_.push_back(field_type(name, value));
}
void child(string const &name, formatter::ptr t) {
fields_.push_back(field_type(name, t));
}
virtual void output(ostream &out, int depth = 0) = 0;
protected:
typedef variant<string, ptr> value;
typedef tuple<string, value> field_type;
vector<field_type> fields_;
};
template <typename T>
void
field(formatter &t, string const &name, T const &value) {
t.field(name, lexical_cast<string>(value));
}
//--------------------------------
class xml_formatter : public formatter {
public:
virtual void output(ostream &out, int depth) {
indent(depth, out);
out << "<fields>" << endl;
vector<field_type>::const_iterator it;
for (it = fields_.begin(); it != fields_.end(); ++it) {
if (string const *s = get<string>(&it->get<1>())) {
indent(depth + 1, out);
out << "<field key=\""
<< it->get<0>()
<< "\" value=\""
<< *s
<< "\"/>"
<< endl;
} else {
formatter::ptr f = get<formatter::ptr>(it->get<1>());
f->output(out, depth + 1);
}
}
indent(depth, out);
out << "</fields>" << endl;
}
private:
void indent(int depth, ostream &out) const {
for (int i = 0; i < depth * 2; i++)
out << ' ';
}
};
//--------------------------------
class command {
public:
typedef boost::shared_ptr<command> ptr;
virtual ~command() {}
virtual void exec(strings const &args, ostream &out) = 0;
};
class command_interpreter {
public:
command_interpreter(istream &in, ostream &out)
: in_(in),
out_(out) {
}
void register_command(string const &str, command::ptr cmd) {
commands_.insert(make_pair(str, cmd));
}
void enter_main_loop() {
while (true)
do_once();
}
private:
strings read_input() {
using namespace boost::algorithm;
string input;
getline(in_, input);
strings toks;
split(toks, input, is_any_of(" \t"), token_compress_on);
return toks;
}
void do_once() {
if (in_.eof())
throw runtime_error("input closed");
out_ << "> ";
strings args = read_input();
map<string, command::ptr>::iterator it;
it = commands_.find(args[0]);
if (it == commands_.end())
out_ << "Unrecognised command" << endl;
else
it->second->exec(args, out_);
}
istream &in_;
ostream &out_;
map <string, command::ptr> commands_;
};
//--------------------------------
class hello : public command {
virtual void exec(strings const &args, ostream &out) {
out << "Hello, world!" << endl;
}
};
class show_superblock : public command {
public:
explicit show_superblock(metadata::ptr md)
: md_(md) {
}
virtual void exec(strings const &args, ostream &out) {
xml_formatter f;
superblock const &sb = md_->sb_;
field(f, "csum", sb.csum_);
field(f, "flags", sb.flags_);
field(f, "blocknr", sb.blocknr_);
field(f, "uuid", sb.uuid_); // FIXME: delimit, and handle non-printable chars
field(f, "magic", sb.magic_);
field(f, "version", sb.version_);
field(f, "time", sb.time_);
field(f, "trans id", sb.trans_id_);
field(f, "held root", sb.held_root_);
field(f, "data mapping root", sb.data_mapping_root_);
field(f, "device details root", sb.device_details_root_);
field(f, "data block size", sb.data_block_size_);
field(f, "metadata block size", sb.metadata_block_size_);
field(f, "metadata nr blocks", sb.metadata_nr_blocks_);
field(f, "compat flags", sb.compat_flags_);
field(f, "compat ro flags", sb.compat_ro_flags_);
field(f, "incompat flags", sb.incompat_flags_);
f.output(out, 0);
}
private:
metadata::ptr md_;
};
class device_details_show_traits : public device_details_traits {
public:
static void show(formatter &f, string const &key, device_details const &value) {
field(f, "mapped blocks", value.mapped_blocks_);
field(f, "transaction id", value.transaction_id_);
field(f, "creation time", value.creation_time_);
field(f, "snap time", value.snapshotted_time_);
}
};
class uint64_show_traits : public uint64_traits {
public:
static void show(formatter &f, string const &key, uint64_t const &value) {
field(f, key, lexical_cast<string>(value));
}
};
class block_show_traits : public block_traits {
public:
static void show(formatter &f, string const &key, block_time const &value) {
field(f, "block", value.block_);
field(f, "time", value.time_);
}
};
template <typename ValueTraits>
class show_btree_node : public command {
public:
explicit show_btree_node(metadata::ptr md)
: md_(md) {
}
virtual void exec(strings const &args, ostream &out) {
using namespace persistent_data::btree_detail;
if (args.size() != 2)
throw runtime_error("incorrect number of arguments");
block_address block = lexical_cast<block_address>(args[1]);
block_manager<>::read_ref rr = md_->tm_->read_lock(block);
node_ref<uint64_show_traits> n = btree_detail::to_node<uint64_show_traits>(rr);
if (n.get_type() == INTERNAL)
show_node<uint64_show_traits>(n, out);
else {
node_ref<ValueTraits> n = btree_detail::to_node<ValueTraits>(rr);
show_node<ValueTraits>(n, out);
}
}
private:
template <typename VT>
void show_node(node_ref<VT> n, ostream &out) {
xml_formatter f;
field(f, "csum", n.get_checksum());
field(f, "blocknr", n.get_location());
field(f, "type", n.get_type() == INTERNAL ? "internal" : "leaf");
field(f, "nr entries", n.get_nr_entries());
field(f, "max entries", n.get_max_entries());
field(f, "value size", n.get_value_size());
for (unsigned i = 0; i < n.get_nr_entries(); i++) {
formatter::ptr f2(new xml_formatter);
field(*f2, "key", n.key_at(i));
VT::show(*f2, "value", n.value_at(i));
f.child("child", f2);
}
f.output(out, 0);
}
metadata::ptr md_;
};
//--------------------------------
int debug(string const &path) {
try {
metadata::ptr md(new metadata(path, metadata::OPEN));
command_interpreter interp(cin, cout);
interp.register_command("hello", command::ptr(new hello));
interp.register_command("superblock", command::ptr(new show_superblock(md)));
interp.register_command("m1_node", command::ptr(new show_btree_node<uint64_show_traits>(md)));
interp.register_command("m2_node", command::ptr(new show_btree_node<block_show_traits>(md)));
interp.register_command("detail_node", command::ptr(new show_btree_node<device_details_show_traits>(md)));
interp.enter_main_loop();
} catch (std::exception &e) {
cerr << e.what();
return 1;
}
return 0;
}
void usage(string const &cmd) {
cerr << "Usage: " << cmd << " {device|file}" << endl
<< "Options:" << endl
<< " {-h|--help}" << endl
<< " {-V|--version}" << endl;
}
}
int main(int argc, char **argv)
{
int c;
const char shortopts[] = "hV";
const struct option longopts[] = {
{ "help", no_argument, NULL, 'h'},
{ "version", no_argument, NULL, 'V'},
{ NULL, no_argument, NULL, 0 }
};
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
switch(c) {
case 'h':
usage(basename(argv[0]));
return 0;
case 'V':
cerr << THIN_PROVISIONING_TOOLS_VERSION << endl;
return 0;
}
}
if (argc == optind) {
usage(basename(argv[0]));
exit(1);
}
return debug(argv[optind]);
}

98
thin_dump.cc
View File

@ -30,77 +30,83 @@ using namespace persistent_data;
using namespace std;
using namespace thin_provisioning;
//----------------------------------------------------------------
namespace {
void dump(string const &path, string const &format) {
metadata::ptr md(new metadata(path, metadata::OPEN));
emitter::ptr e;
int dump(string const &path, string const &format, bool repair) {
try {
metadata::ptr md(new metadata(path, metadata::OPEN));
emitter::ptr e;
if (format == "xml")
e = create_xml_emitter(cout);
else if (format == "human_readable")
e = create_human_readable_emitter(cout);
else {
cerr << "unknown format '" << format << "'" << endl;
exit(1);
if (format == "xml")
e = create_xml_emitter(cout);
else if (format == "human_readable")
e = create_human_readable_emitter(cout);
else {
cerr << "unknown format '" << format << "'" << endl;
exit(1);
}
metadata_dump(md, e, repair);
} catch (std::exception &e) {
cerr << e.what() << endl;
return 1;
}
metadata_dump(md, e);
return 0;
}
void usage(string const &cmd) {
cerr << "Usage: " << cmd << " [options] {device|file}" << endl << endl;
cerr << "Options:" << endl;
cerr << " {-h|--help}" << endl;
cerr << " {-f|--format} {xml|human_readable}" << endl;
cerr << " {-i|--input} {xml|human_readable} input_file" << endl;
cerr << " {-V|--version}" << endl;
void usage(ostream &out, string const &cmd) {
out << "Usage: " << cmd << " [options] {device|file}" << endl
<< "Options:" << endl
<< " {-h|--help}" << endl
<< " {-f|--format} {xml|human_readable}" << endl
<< " {-r|--repair}" << endl
<< " {-V|--version}" << endl;
}
}
int main(int argc, char **argv)
{
int c;
const char shortopts[] = "hf:i:V";
string filename, format = "xml";
bool repair = false;
const char shortopts[] = "hf:rV";
string format = "xml";
const struct option longopts[] = {
{ "help", no_argument, NULL, 'h'},
{ "format", required_argument, NULL, 'f' },
{ "input", required_argument, NULL, 'i'},
{ "repair", no_argument, NULL, 'r'},
{ "version", no_argument, NULL, 'V'},
{ NULL, no_argument, NULL, 0 }
};
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
switch(c) {
case 'h':
usage(basename(argv[0]));
return 0;
case 'f':
format = optarg;
break;
case 'i':
filename = optarg;
break;
case 'V':
cerr << THIN_PROVISIONING_TOOLS_VERSION << endl;
return 0;
case 'h':
usage(cout, basename(argv[0]));
return 0;
case 'f':
format = optarg;
break;
case 'r':
repair = true;
break;
case 'V':
cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
return 0;
default:
usage(cerr, basename(argv[0]));
return 1;
}
}
if (argc == 1) {
usage(basename(argv[0]));
if (argc == optind) {
cerr << "No input file provided." << endl;
usage(cerr, basename(argv[0]));
return 1;
}
if (filename.empty()) {
cerr << "No output file provided." << endl;
return 1;
}
dump(filename, format);
return 0;
return dump(argv[optind], format, repair);
}
//----------------------------------------------------------------

72
thin_restore.cc
View File

@ -24,42 +24,43 @@
#include "version.h"
#include <fstream>
#include <iostream>
#include <getopt.h>
#include <iostream>
#include <libgen.h>
#include <linux/fs.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
using namespace persistent_data;
using namespace std;
using namespace thin_provisioning;
//----------------------------------------------------------------
namespace {
void restore(string const &backup_file, string const &dev) {
// FIXME: hard coded
block_address const NR_BLOCKS = 100000;
metadata::ptr md(new metadata(dev, metadata::CREATE, 128, NR_BLOCKS));
emitter::ptr restorer = create_restore_emitter(md);
ifstream in(backup_file.c_str(), ifstream::in);
// FIXME:
//try {
int restore(string const &backup_file, string const &dev) {
try {
// The block size gets updated by the restorer.
metadata::ptr md(new metadata(dev, metadata::CREATE, 128, 0));
emitter::ptr restorer = create_restore_emitter(md);
ifstream in(backup_file.c_str(), ifstream::in);
parse_xml(in, restorer);
#if 0
} catch (...) {
in.close();
throw;
} catch (std::exception &e) {
cerr << e.what() << endl;
return 1;
}
#endif
return 0;
}
void usage(string const &cmd) {
cerr << "Usage: " << cmd << " [options]" << endl << endl;
cerr << "Options:" << endl;
cerr << " {-h|--help}" << endl;
cerr << " {-i|--input} input_file" << endl;
cerr << " {-o [ --output} {device|file}" << endl;
cerr << " {-V|--version}" << endl;
void usage(ostream &out, string const &cmd) {
out << "Usage: " << cmd << " [options]" << endl
<< "Options:" << endl
<< " {-h|--help}" << endl
<< " {-i|--input} input_file" << endl
<< " {-o|--output} {device|file}" << endl
<< " {-V|--version}" << endl;
}
}
@ -79,38 +80,43 @@ int main(int argc, char **argv)
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
switch(c) {
case 'h':
usage(basename(argv[0]));
usage(cout, basename(argv[0]));
return 0;
case 'i':
input = optarg;
break;
case 'o':
output = optarg;
break;
case 'V':
cerr << THIN_PROVISIONING_TOOLS_VERSION << endl;
cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
return 0;
default:
usage(cerr, basename(argv[0]));
return 1;
}
}
if (argc == 1) {
usage(basename(argv[0]));
if (argc != optind) {
usage(cerr, basename(argv[0]));
return 1;
}
if (input.empty()) {
cerr << "No input file provided." << endl;
usage(cerr, basename(argv[0]));
return 1;
}
if (output.empty()) {
cerr << "No output file provided." << endl;
usage(cerr, basename(argv[0]));
return 1;
}
restore(input, output);
return 0;
return restore(input, output);
}
//----------------------------------------------------------------

9
xml_format.cc
View File

@ -48,12 +48,14 @@ namespace {
void begin_superblock(string const &uuid,
uint64_t time,
uint64_t trans_id,
uint32_t data_block_size) {
uint32_t data_block_size,
uint64_t nr_data_blocks) {
indent();
out_ << "<superblock uuid=\"" << uuid << "\""
<< " time=\"" << time << "\""
<< " transaction=\"" << trans_id << "\""
<< " data_block_size=\"" << data_block_size << "\">"
<< " data_block_size=\"" << data_block_size << "\""
<< " nr_data_blocks=\"" << nr_data_blocks << "\">"
<< endl;
inc();
}
@ -176,7 +178,8 @@ namespace {
e->begin_superblock(get_attr<string>(attr, "uuid"),
get_attr<uint64_t>(attr, "time"),
get_attr<uint64_t>(attr, "transaction"),
get_attr<uint32_t>(attr, "data_block_size"));
get_attr<uint32_t>(attr, "data_block_size"),
get_attr<uint64_t>(attr, "nr_data_blocks"));
}
void parse_device(emitter *e, attributes const &attr) {