[lvm-devel] 2018-05-17-put-format1-and-pool-back - format1, pool: Add support for these old formats back in.
David Teigland
teigland at sourceware.org
Thu May 17 16:57:44 UTC 2018
Gitweb: https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=7cd35b62b841bd04b7057a937ee210a0a5b28332
Commit: 7cd35b62b841bd04b7057a937ee210a0a5b28332
Parent: a39eaea27dcd2fd895740193e82ca6d0683eb3ad
Author: Joe Thornber <ejt at redhat.com>
AuthorDate: Thu May 17 11:35:33 2018 +0100
Committer: David Teigland <teigland at redhat.com>
CommitterDate: Thu May 17 11:54:58 2018 -0500
format1, pool: Add support for these old formats back in.
This is not destined for upstream. RHEL7.6+ specific patch.
(Requires configure option --with-lvm1=internal)
---
configure | 93 +++++-
configure.ac | 58 +++
daemons/clvmd/clvmd-command.c | 1 +
daemons/clvmd/lvm-functions.c | 10 +
daemons/clvmd/lvm-functions.h | 1 +
daemons/lvmetad/lvmetad-client.h | 1 +
daemons/lvmetad/lvmetad-core.c | 9 +-
include/configure.h.in | 14 +
lib/Makefile.in | 29 ++
lib/activate/activate.c | 13 +
lib/activate/activate.h | 1 +
lib/cache/lvmcache.c | 4 +
lib/cache/lvmetad.c | 23 +-
lib/commands/toolcontext.c | 24 ++
lib/config/config_settings.h | 22 +-
lib/display/display.c | 9 +-
lib/format1/.exported_symbols | 1 +
lib/format1/Makefile.in | 33 ++
lib/format1/disk-rep.c | 761 +++++++++++++++++++++++++++++++++++++
lib/format1/disk-rep.h | 250 ++++++++++++
lib/format1/format1.c | 630 ++++++++++++++++++++++++++++++
lib/format1/format1.h | 29 ++
lib/format1/import-export.c | 680 +++++++++++++++++++++++++++++++++
lib/format1/import-extents.c | 377 ++++++++++++++++++
lib/format1/layout.c | 172 +++++++++
lib/format1/lvm1-label.c | 129 +++++++
lib/format1/lvm1-label.h | 23 ++
lib/format1/vg_number.c | 60 +++
lib/format_pool/.exported_symbols | 1 +
lib/format_pool/Makefile.in | 30 ++
lib/format_pool/disk_rep.c | 409 ++++++++++++++++++++
lib/format_pool/disk_rep.h | 156 ++++++++
lib/format_pool/format_pool.c | 337 ++++++++++++++++
lib/format_pool/format_pool.h | 28 ++
lib/format_pool/import_export.c | 285 ++++++++++++++
lib/format_pool/pool_label.c | 104 +++++
lib/format_pool/pool_label.h | 23 ++
lib/format_pool/sptype_names.h | 42 ++
lib/format_text/export.c | 2 +
lib/format_text/format-text.c | 4 +-
lib/format_text/import_vsn1.c | 9 +-
lib/locking/locking.c | 40 ++
lib/metadata/lv_manip.c | 26 ++
lib/metadata/metadata-exported.h | 10 +-
lib/metadata/metadata.c | 18 +-
lib/metadata/segtype.h | 2 +-
lib/metadata/snapshot_manip.c | 11 +
lib/metadata/vg.c | 17 +-
lib/metadata/vg.h | 1 +
lib/report/report.c | 4 +-
lib/striped/striped.c | 2 +-
man/vgconvert.8_des | 7 +-
test/shell/format-lvm1.sh | 38 ++
test/shell/lvm1-basic.sh | 36 ++
test/shell/snapshot-lvm1.sh | 35 ++
tools/args.h | 3 +-
tools/lvconvert.c | 5 +
tools/lvmcmdline.c | 58 +++-
tools/pvscan.c | 5 +-
tools/stub.h | 1 +
tools/toollib.c | 29 ++-
tools/vals.h | 4 +-
tools/vgchange.c | 10 +
tools/vgconvert.c | 53 ++-
tools/vgscan.c | 4 +-
65 files changed, 5253 insertions(+), 53 deletions(-)
diff --git a/configure b/configure
index 7d945df..a3cb144 100755
--- a/configure
+++ b/configure
@@ -675,6 +675,7 @@ PYTHON_BINDINGS
PYTHON3
PTHREAD_LIBS
M_LIBS
+POOL
PKGCONFIG
ODIRECT
OCFDIR
@@ -689,6 +690,8 @@ LVM_MINOR
LVM_MAJOR
LVM_LIBAPI
LVM_VERSION
+LVM1_FALLBACK
+LVM1
LIB_SUFFIX
LDDEPS
JOBS
@@ -716,6 +719,7 @@ DEFAULT_RAID10_SEGTYPE
DEFAULT_PROFILE_SUBDIR
DEFAULT_PID_DIR
DEFAULT_MIRROR_SEGTYPE
+DEFAULT_FALLBACK_TO_LVM1
DEFAULT_LOCK_DIR
DEFAULT_DM_RUN_DIR
DEFAULT_DATA_ALIGNMENT
@@ -908,6 +912,9 @@ with_device_gid
with_device_mode
with_device_nodes_on
with_default_name_mangling
+enable_lvm1_fallback
+with_lvm1
+with_pool
with_cluster
with_snapshots
with_mirrors
@@ -1673,6 +1680,8 @@ Optional Features:
speeds up one-time build.
--enable-static_link use this to link the tools to their libraries
statically (default is dynamic linking
+ --enable-lvm1_fallback use this to fall back and use LVM1 binaries if
+ device-mapper is missing from the kernel
--disable-thin_check_needs_check
required if thin_check version is < 0.3.0
--disable-cache_check_needs_check
@@ -1739,6 +1748,10 @@ Optional Packages:
create nodes on resume or create [ON=resume]
--with-default-name-mangling=MANGLING
default name mangling: auto/none/hex [auto]
+ --with-lvm1=TYPE LVM1 metadata support: internal/shared/none
+ [internal]
+ --with-pool=TYPE GFS pool read-only support: internal/shared/none
+ [internal]
--with-cluster=TYPE cluster LVM locking support: internal/shared/none
[internal]
--with-snapshots=TYPE snapshot support: internal/shared/none [internal]
@@ -8372,6 +8385,78 @@ _ACEOF
################################################################################
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable lvm1 fallback" >&5
+$as_echo_n "checking whether to enable lvm1 fallback... " >&6; }
+# Check whether --enable-lvm1_fallback was given.
+if test "${enable_lvm1_fallback+set}" = set; then :
+ enableval=$enable_lvm1_fallback; LVM1_FALLBACK=$enableval
+else
+ LVM1_FALLBACK=no
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $LVM1_FALLBACK" >&5
+$as_echo "$LVM1_FALLBACK" >&6; }
+
+if test "$LVM1_FALLBACK" = yes; then
+ DEFAULT_FALLBACK_TO_LVM1=1
+
+$as_echo "#define LVM1_FALLBACK 1" >>confdefs.h
+
+else
+ DEFAULT_FALLBACK_TO_LVM1=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define DEFAULT_FALLBACK_TO_LVM1 $DEFAULT_FALLBACK_TO_LVM1
+_ACEOF
+
+
+################################################################################
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to include support for lvm1 metadata" >&5
+$as_echo_n "checking whether to include support for lvm1 metadata... " >&6; }
+
+# Check whether --with-lvm1 was given.
+if test "${with_lvm1+set}" = set; then :
+ withval=$with_lvm1; LVM1=$withval
+else
+ LVM1=internal
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $LVM1" >&5
+$as_echo "$LVM1" >&6; }
+
+case "$LVM1" in
+ none|shared) ;;
+ internal)
+$as_echo "#define LVM1_INTERNAL 1" >>confdefs.h
+ ;;
+ *) as_fn_error $? "--with-lvm1 parameter invalid" "$LINENO" 5 ;;
+esac
+
+################################################################################
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to include support for GFS pool metadata" >&5
+$as_echo_n "checking whether to include support for GFS pool metadata... " >&6; }
+
+# Check whether --with-pool was given.
+if test "${with_pool+set}" = set; then :
+ withval=$with_pool; POOL=$withval
+else
+ POOL=internal
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $POOL" >&5
+$as_echo "$POOL" >&6; }
+
+case "$POOL" in
+ none|shared) ;;
+ internal)
+$as_echo "#define POOL_INTERNAL 1" >>confdefs.h
+ ;;
+ *) as_fn_error $? "--with-pool parameter invalid" "$LINENO" 5
+esac
+
+################################################################################
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to include support for cluster locking" >&5
$as_echo_n "checking whether to include support for cluster locking... " >&6; }
@@ -15558,8 +15643,12 @@ _ACEOF
+
+
+
+
################################################################################
-ac_config_files="$ac_config_files Makefile make.tmpl daemons/Makefile daemons/clvmd/Makefile daemons/cmirrord/Makefile daemons/dmeventd/Makefile daemons/dmeventd/libdevmapper-event.pc daemons/dmeventd/plugins/Makefile daemons/dmeventd/plugins/lvm2/Makefile daemons/dmeventd/plugins/raid/Makefile daemons/dmeventd/plugins/mirror/Makefile daemons/dmeventd/plugins/snapshot/Makefile daemons/dmeventd/plugins/thin/Makefile daemons/dmfilemapd/Makefile daemons/lvmdbusd/Makefile daemons/lvmdbusd/lvmdbusd daemons/lvmdbusd/lvmdb.py daemons/lvmdbusd/lvm_shell_proxy.py daemons/lvmdbusd/path.py daemons/lvmetad/Makefile daemons/lvmpolld/Makefile daemons/lvmlockd/Makefile device_mapper/Makefile conf/Makefile conf/example.conf conf/lvmlocal.conf conf/command_profile_template.profile conf/metadata_profile_template.profile include/.symlinks include/Makefile lib/Makefile lib/locking/Makefile include/lvm-version.h libdaemon/Makefile libdaemon/client/Makefile libdaemon/server/Makefile libdm/Makefile libdm/
libdevmapper.pc liblvm/Makefile liblvm/liblvm2app.pc man/Makefile po/Makefile python/Makefile python/setup.py scripts/blkdeactivate.sh scripts/blk_availability_init_red_hat scripts/blk_availability_systemd_red_hat.service scripts/clvmd_init_red_hat scripts/cmirrord_init_red_hat scripts/com.redhat.lvmdbus1.service scripts/dm_event_systemd_red_hat.service scripts/dm_event_systemd_red_hat.socket scripts/lvm2_cluster_activation_red_hat.sh scripts/lvm2_cluster_activation_systemd_red_hat.service scripts/lvm2_clvmd_systemd_red_hat.service scripts/lvm2_cmirrord_systemd_red_hat.service scripts/lvm2_lvmdbusd_systemd_red_hat.service scripts/lvm2_lvmetad_init_red_hat scripts/lvm2_lvmetad_systemd_red_hat.service scripts/lvm2_lvmetad_systemd_red_hat.socket scripts/lvm2_lvmpolld_init_red_hat scripts/lvm2_lvmpolld_systemd_red_hat.service scripts/lvm2_lvmpolld_systemd_red_hat.socket scripts/lvm2_lvmlockd_systemd_red_hat.service scripts/lvm2_lvmlocking_systemd_red_hat.service scripts/lvm2_monitoring_
init_red_hat scripts/lvm2_monitoring_systemd_red_hat.service scripts/lvm2_pvscan_systemd_red_hat at .service scripts/lvm2_tmpfiles_red_hat.conf scripts/lvmdump.sh scripts/Makefile test/Makefile test/api/Makefile test/api/python_lvm_unit.py test/unit/Makefile tools/Makefile udev/Makefile"
+ac_config_files="$ac_config_files Makefile make.tmpl daemons/Makefile daemons/clvmd/Makefile daemons/cmirrord/Makefile daemons/dmeventd/Makefile daemons/dmeventd/libdevmapper-event.pc daemons/dmeventd/plugins/Makefile daemons/dmeventd/plugins/lvm2/Makefile daemons/dmeventd/plugins/raid/Makefile daemons/dmeventd/plugins/mirror/Makefile daemons/dmeventd/plugins/snapshot/Makefile daemons/dmeventd/plugins/thin/Makefile daemons/dmfilemapd/Makefile daemons/lvmdbusd/Makefile daemons/lvmdbusd/lvmdbusd daemons/lvmdbusd/lvmdb.py daemons/lvmdbusd/lvm_shell_proxy.py daemons/lvmdbusd/path.py daemons/lvmetad/Makefile daemons/lvmpolld/Makefile daemons/lvmlockd/Makefile device_mapper/Makefile conf/Makefile conf/example.conf conf/lvmlocal.conf conf/command_profile_template.profile conf/metadata_profile_template.profile include/.symlinks include/Makefile lib/Makefile lib/format1/Makefile lib/format_pool/Makefile lib/locking/Makefile include/lvm-version.h libdaemon/Makefile libdaemon/client/Makefile l
ibdaemon/server/Makefile libdm/Makefile libdm/libdevmapper.pc liblvm/Makefile liblvm/liblvm2app.pc man/Makefile po/Makefile python/Makefile python/setup.py scripts/blkdeactivate.sh scripts/blk_availability_init_red_hat scripts/blk_availability_systemd_red_hat.service scripts/clvmd_init_red_hat scripts/cmirrord_init_red_hat scripts/com.redhat.lvmdbus1.service scripts/dm_event_systemd_red_hat.service scripts/dm_event_systemd_red_hat.socket scripts/lvm2_cluster_activation_red_hat.sh scripts/lvm2_cluster_activation_systemd_red_hat.service scripts/lvm2_clvmd_systemd_red_hat.service scripts/lvm2_cmirrord_systemd_red_hat.service scripts/lvm2_lvmdbusd_systemd_red_hat.service scripts/lvm2_lvmetad_init_red_hat scripts/lvm2_lvmetad_systemd_red_hat.service scripts/lvm2_lvmetad_systemd_red_hat.socket scripts/lvm2_lvmpolld_init_red_hat scripts/lvm2_lvmpolld_systemd_red_hat.service scripts/lvm2_lvmpolld_systemd_red_hat.socket scripts/lvm2_lvmlockd_systemd_red_hat.service scripts/lvm2_lvmlocking_sy
stemd_red_hat.service scripts/lvm2_monitoring_init_red_hat scripts/lvm2_monitoring_systemd_red_hat.service scripts/lvm2_pvscan_systemd_red_hat at .service scripts/lvm2_tmpfiles_red_hat.conf scripts/lvmdump.sh scripts/Makefile test/Makefile test/api/Makefile test/api/python_lvm_unit.py test/unit/Makefile tools/Makefile udev/Makefile"
cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
@@ -16285,6 +16374,8 @@ do
"include/.symlinks") CONFIG_FILES="$CONFIG_FILES include/.symlinks" ;;
"include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;;
"lib/Makefile") CONFIG_FILES="$CONFIG_FILES lib/Makefile" ;;
+ "lib/format1/Makefile") CONFIG_FILES="$CONFIG_FILES lib/format1/Makefile" ;;
+ "lib/format_pool/Makefile") CONFIG_FILES="$CONFIG_FILES lib/format_pool/Makefile" ;;
"lib/locking/Makefile") CONFIG_FILES="$CONFIG_FILES lib/locking/Makefile" ;;
"include/lvm-version.h") CONFIG_FILES="$CONFIG_FILES include/lvm-version.h" ;;
"libdaemon/Makefile") CONFIG_FILES="$CONFIG_FILES libdaemon/Makefile" ;;
diff --git a/configure.ac b/configure.ac
index e427708..0206447 100644
--- a/configure.ac
+++ b/configure.ac
@@ -283,6 +283,58 @@ AC_MSG_RESULT($MANGLING)
AC_DEFINE_UNQUOTED([DEFAULT_DM_NAME_MANGLING], $mangling, [Define default name mangling behaviour])
################################################################################
+dnl -- LVM1 tool fallback option
+AC_MSG_CHECKING(whether to enable lvm1 fallback)
+AC_ARG_ENABLE(lvm1_fallback,
+ AC_HELP_STRING([--enable-lvm1_fallback],
+ [use this to fall back and use LVM1 binaries if
+ device-mapper is missing from the kernel]),
+ LVM1_FALLBACK=$enableval, LVM1_FALLBACK=no)
+AC_MSG_RESULT($LVM1_FALLBACK)
+
+if test "$LVM1_FALLBACK" = yes; then
+ DEFAULT_FALLBACK_TO_LVM1=1
+ AC_DEFINE([LVM1_FALLBACK], 1, [Define to 1 if 'lvm' should fall back to using LVM1 binaries if device-mapper is missing from the kernel])
+else
+ DEFAULT_FALLBACK_TO_LVM1=0
+fi
+AC_DEFINE_UNQUOTED(DEFAULT_FALLBACK_TO_LVM1, [$DEFAULT_FALLBACK_TO_LVM1],
+ [Fall back to LVM1 by default if device-mapper is missing from the kernel.])
+
+################################################################################
+dnl -- format1 inclusion type
+AC_MSG_CHECKING(whether to include support for lvm1 metadata)
+AC_ARG_WITH(lvm1,
+ AC_HELP_STRING([--with-lvm1=TYPE],
+ [LVM1 metadata support: internal/shared/none [internal]]),
+ LVM1=$withval, LVM1=internal)
+
+AC_MSG_RESULT($LVM1)
+
+case "$LVM1" in
+ none|shared) ;;
+ internal) AC_DEFINE([LVM1_INTERNAL], 1,
+ [Define to 1 to include built-in support for LVM1 metadata.]) ;;
+ *) AC_MSG_ERROR([--with-lvm1 parameter invalid]) ;;
+esac
+
+################################################################################
+dnl -- format_pool inclusion type
+AC_MSG_CHECKING(whether to include support for GFS pool metadata)
+AC_ARG_WITH(pool,
+ AC_HELP_STRING([--with-pool=TYPE],
+ [GFS pool read-only support: internal/shared/none [internal]]),
+ POOL=$withval, POOL=internal)
+AC_MSG_RESULT($POOL)
+
+case "$POOL" in
+ none|shared) ;;
+ internal) AC_DEFINE([POOL_INTERNAL], 1,
+ [Define to 1 to include built-in support for GFS pool metadata.]) ;;
+ *) AC_MSG_ERROR([--with-pool parameter invalid])
+esac
+
+################################################################################
dnl -- cluster_locking inclusion type
AC_MSG_CHECKING(whether to include support for cluster locking)
AC_ARG_WITH(cluster,
@@ -1967,6 +2019,7 @@ AC_SUBST(DEFAULT_CACHE_SUBDIR)
AC_SUBST(DEFAULT_DATA_ALIGNMENT)
AC_SUBST(DEFAULT_DM_RUN_DIR)
AC_SUBST(DEFAULT_LOCK_DIR)
+AC_SUBST(DEFAULT_FALLBACK_TO_LVM1)
AC_SUBST(DEFAULT_MIRROR_SEGTYPE)
AC_SUBST(DEFAULT_PID_DIR)
AC_SUBST(DEFAULT_PROFILE_SUBDIR)
@@ -1997,6 +2050,8 @@ AC_SUBST(JOBS)
AC_SUBST(LDDEPS)
AC_SUBST(LIBS)
AC_SUBST(LIB_SUFFIX)
+AC_SUBST(LVM1)
+AC_SUBST(LVM1_FALLBACK)
AC_SUBST(LVM_VERSION)
AC_SUBST(LVM_LIBAPI)
AC_SUBST(LVM_MAJOR)
@@ -2013,6 +2068,7 @@ AC_SUBST(OCF)
AC_SUBST(OCFDIR)
AC_SUBST(ODIRECT)
AC_SUBST(PKGCONFIG)
+AC_SUBST(POOL)
AC_SUBST(M_LIBS)
AC_SUBST(PTHREAD_LIBS)
AC_SUBST(PYTHON2)
@@ -2117,6 +2173,8 @@ conf/metadata_profile_template.profile
include/.symlinks
include/Makefile
lib/Makefile
+lib/format1/Makefile
+lib/format_pool/Makefile
lib/locking/Makefile
include/lvm-version.h
libdaemon/Makefile
diff --git a/daemons/clvmd/clvmd-command.c b/daemons/clvmd/clvmd-command.c
index ce7f500..2971ecb 100644
--- a/daemons/clvmd/clvmd-command.c
+++ b/daemons/clvmd/clvmd-command.c
@@ -108,6 +108,7 @@ int do_command(struct local_client *client, struct clvm_header *msg, int msglen,
lock_flags = args[1];
lockname = &args[2];
/* Check to see if the VG is in use by LVM1 */
+ status = do_check_lvm1(lockname);
do_lock_vg(lock_cmd, lock_flags, lockname);
break;
diff --git a/daemons/clvmd/lvm-functions.c b/daemons/clvmd/lvm-functions.c
index 34da66d..6254122 100644
--- a/daemons/clvmd/lvm-functions.c
+++ b/daemons/clvmd/lvm-functions.c
@@ -639,6 +639,16 @@ int post_lock_lv(unsigned char command, unsigned char lock_flags,
return 0;
}
+/* Check if a VG is in use by LVM1 so we don't stomp on it */
+int do_check_lvm1(const char *vgname)
+{
+ int status;
+
+ status = check_lvm1_vg_inactive(cmd, vgname);
+
+ return status == 1 ? 0 : EBUSY;
+}
+
int do_refresh_cache(void)
{
DEBUGLOG("Refreshing context\n");
diff --git a/daemons/clvmd/lvm-functions.h b/daemons/clvmd/lvm-functions.h
index 6785997..eac966f 100644
--- a/daemons/clvmd/lvm-functions.h
+++ b/daemons/clvmd/lvm-functions.h
@@ -25,6 +25,7 @@ extern int do_lock_lv(unsigned char lock_cmd, unsigned char lock_flags,
extern const char *do_lock_query(char *resource);
extern int post_lock_lv(unsigned char lock_cmd, unsigned char lock_flags,
char *resource);
+extern int do_check_lvm1(const char *vgname);
extern int do_refresh_cache(void);
extern int init_clvm(struct dm_hash_table *excl_uuid);
extern void destroy_lvm(void);
diff --git a/daemons/lvmetad/lvmetad-client.h b/daemons/lvmetad/lvmetad-client.h
index be2623a..a2adfe6 100644
--- a/daemons/lvmetad/lvmetad-client.h
+++ b/daemons/lvmetad/lvmetad-client.h
@@ -22,6 +22,7 @@
#define LVMETAD_TOKEN_UPDATE_IN_PROGRESS "update in progress"
#define LVMETAD_DISABLE_REASON_DIRECT "DIRECT"
+#define LVMETAD_DISABLE_REASON_LVM1 "LVM1"
#define LVMETAD_DISABLE_REASON_DUPLICATES "DUPLICATES"
#define LVMETAD_DISABLE_REASON_VGRESTORE "VGRESTORE"
#define LVMETAD_DISABLE_REASON_REPAIR "REPAIR"
diff --git a/daemons/lvmetad/lvmetad-core.c b/daemons/lvmetad/lvmetad-core.c
index 72473d7..f4f5f42 100644
--- a/daemons/lvmetad/lvmetad-core.c
+++ b/daemons/lvmetad/lvmetad-core.c
@@ -200,12 +200,12 @@ struct vg_info {
#define GLFL_INVALID 0x00000001
#define GLFL_DISABLE 0x00000002
#define GLFL_DISABLE_REASON_DIRECT 0x00000004
- /* 0x00000008 */
+#define GLFL_DISABLE_REASON_LVM1 0x00000008
#define GLFL_DISABLE_REASON_DUPLICATES 0x00000010
#define GLFL_DISABLE_REASON_VGRESTORE 0x00000020
#define GLFL_DISABLE_REASON_REPAIR 0x00000040
-#define GLFL_DISABLE_REASON_ALL (GLFL_DISABLE_REASON_DIRECT | GLFL_DISABLE_REASON_REPAIR | GLFL_DISABLE_REASON_DUPLICATES | GLFL_DISABLE_REASON_VGRESTORE)
+#define GLFL_DISABLE_REASON_ALL (GLFL_DISABLE_REASON_DIRECT | GLFL_DISABLE_REASON_REPAIR | GLFL_DISABLE_REASON_LVM1 | GLFL_DISABLE_REASON_DUPLICATES | GLFL_DISABLE_REASON_VGRESTORE)
#define VGFL_INVALID 0x00000001
@@ -2369,6 +2369,8 @@ static response set_global_info(lvmetad_state *s, request r)
reason_flags |= GLFL_DISABLE_REASON_DIRECT;
if (strstr(reason, LVMETAD_DISABLE_REASON_REPAIR))
reason_flags |= GLFL_DISABLE_REASON_REPAIR;
+ if (strstr(reason, LVMETAD_DISABLE_REASON_LVM1))
+ reason_flags |= GLFL_DISABLE_REASON_LVM1;
if (strstr(reason, LVMETAD_DISABLE_REASON_DUPLICATES))
reason_flags |= GLFL_DISABLE_REASON_DUPLICATES;
if (strstr(reason, LVMETAD_DISABLE_REASON_VGRESTORE))
@@ -2427,9 +2429,10 @@ static response get_global_info(lvmetad_state *s, request r)
pid = (int)daemon_request_int(r, "pid", 0);
if (s->flags & GLFL_DISABLE) {
- snprintf(reason, REASON_BUF_SIZE, "%s%s%s%s",
+ snprintf(reason, REASON_BUF_SIZE, "%s%s%s%s%s",
(s->flags & GLFL_DISABLE_REASON_DIRECT) ? LVMETAD_DISABLE_REASON_DIRECT "," : "",
(s->flags & GLFL_DISABLE_REASON_REPAIR) ? LVMETAD_DISABLE_REASON_REPAIR "," : "",
+ (s->flags & GLFL_DISABLE_REASON_LVM1) ? LVMETAD_DISABLE_REASON_LVM1 "," : "",
(s->flags & GLFL_DISABLE_REASON_DUPLICATES) ? LVMETAD_DISABLE_REASON_DUPLICATES "," : "",
(s->flags & GLFL_DISABLE_REASON_VGRESTORE) ? LVMETAD_DISABLE_REASON_VGRESTORE "," : "");
}
diff --git a/include/configure.h.in b/include/configure.h.in
index 15fd150..605f1e1 100644
--- a/include/configure.h.in
+++ b/include/configure.h.in
@@ -72,6 +72,10 @@
/* Default system configuration directory. */
#undef DEFAULT_ETC_DIR
+/* Fall back to LVM1 by default if device-mapper is missing from the kernel.
+ */
+#undef DEFAULT_FALLBACK_TO_LVM1
+
/* Name of default locking directory. */
#undef DEFAULT_LOCK_DIR
@@ -616,6 +620,13 @@
slash. */
#undef LSTAT_FOLLOWS_SLASHED_SYMLINK
+/* Define to 1 if 'lvm' should fall back to using LVM1 binaries if
+ device-mapper is missing from the kernel */
+#undef LVM1_FALLBACK
+
+/* Define to 1 to include built-in support for LVM1 metadata. */
+#undef LVM1_INTERNAL
+
/* Path to lvmetad pidfile. */
#undef LVMETAD_PIDFILE
@@ -678,6 +689,9 @@
/* Define to the version of this package. */
#undef PACKAGE_VERSION
+/* Define to 1 to include built-in support for GFS pool metadata. */
+#undef POOL_INTERNAL
+
/* Define to 1 to include built-in support for raid. */
#undef RAID_INTERNAL
diff --git a/lib/Makefile.in b/lib/Makefile.in
index 1d42235..241cf09 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -16,6 +16,14 @@ srcdir = @srcdir@
top_srcdir = @top_srcdir@
top_builddir = @top_builddir@
+ifeq ("@LVM1@", "shared")
+ SUBDIRS = format1
+endif
+
+ifeq ("@POOL@", "shared")
+ SUBDIRS += format_pool
+endif
+
ifeq ("@CLUSTER@", "shared")
SUBDIRS += locking
endif
@@ -107,6 +115,25 @@ SOURCES =\
uuid/uuid.c \
zero/zero.c
+ifeq ("@LVM1@", "internal")
+ SOURCES +=\
+ format1/disk-rep.c \
+ format1/format1.c \
+ format1/import-export.c \
+ format1/import-extents.c \
+ format1/layout.c \
+ format1/lvm1-label.c \
+ format1/vg_number.c
+endif
+
+ifeq ("@POOL@", "internal")
+ SOURCES +=\
+ format_pool/disk_rep.c \
+ format_pool/format_pool.c \
+ format_pool/import_export.c \
+ format_pool/pool_label.c
+endif
+
ifeq ("@CLUSTER@", "internal")
SOURCES += locking/cluster_locking.c
endif
@@ -143,6 +170,8 @@ LIB_STATIC = $(LIB_NAME).a
ifeq ($(MAKECMDGOALS),distclean)
SUBDIRS =\
+ format1 \
+ format_pool \
notify \
locking
endif
diff --git a/lib/activate/activate.c b/lib/activate/activate.c
index 985215a..7cd877d 100644
--- a/lib/activate/activate.c
+++ b/lib/activate/activate.c
@@ -37,6 +37,19 @@
#define _skip(fmt, args...) log_very_verbose("Skipping: " fmt , ## args)
+int lvm1_present(struct cmd_context *cmd)
+{
+ static char path[PATH_MAX];
+
+ if (dm_snprintf(path, sizeof(path), "%s/lvm/global", cmd->proc_dir)
+ < 0) {
+ log_error("LVM1 proc global snprintf failed");
+ return 0;
+ }
+
+ return (path_exists(path)) ? 1 : 0;
+}
+
int list_segment_modules(struct dm_pool *mem, const struct lv_segment *seg,
struct dm_list *modules)
{
diff --git a/lib/activate/activate.h b/lib/activate/activate.h
index d2c6db7..2fc74ce 100644
--- a/lib/activate/activate.h
+++ b/lib/activate/activate.h
@@ -91,6 +91,7 @@ int activation(void);
int driver_version(char *version, size_t size);
int library_version(char *version, size_t size);
+int lvm1_present(struct cmd_context *cmd);
int module_present(struct cmd_context *cmd, const char *target_name);
int target_present_version(struct cmd_context *cmd, const char *target_name,
diff --git a/lib/cache/lvmcache.c b/lib/cache/lvmcache.c
index 9912995..13844e1 100644
--- a/lib/cache/lvmcache.c
+++ b/lib/cache/lvmcache.c
@@ -22,6 +22,8 @@
#include "memlock.h"
#include "str_list.h"
#include "format-text.h"
+#include "format_pool.h"
+#include "format1.h"
#include "config.h"
#include "lvmetad.h"
@@ -538,6 +540,8 @@ void lvmcache_drop_metadata(const char *vgname, int drop_precommitted)
/* For VG_ORPHANS, we need to invalidate all labels on orphan PVs. */
if (!strcmp(vgname, VG_ORPHANS)) {
_drop_metadata(FMT_TEXT_ORPHAN_VG_NAME, 0);
+ _drop_metadata(FMT_LVM1_ORPHAN_VG_NAME, 0);
+ _drop_metadata(FMT_POOL_ORPHAN_VG_NAME, 0);
} else
_drop_metadata(vgname, drop_precommitted);
}
diff --git a/lib/cache/lvmetad.c b/lib/cache/lvmetad.c
index 235f72b..4980dd8 100644
--- a/lib/cache/lvmetad.c
+++ b/lib/cache/lvmetad.c
@@ -37,6 +37,8 @@ static const char *_lvmetad_socket = NULL;
static struct cmd_context *_lvmetad_cmd = NULL;
static int64_t _lvmetad_update_timeout;
+static int _found_lvm1_metadata = 0;
+
static struct volume_group *_lvmetad_pvscan_vg(struct cmd_context *cmd, struct volume_group *vg, const char *vgid, struct format_type *fmt);
static uint64_t _monotonic_seconds(void)
@@ -2277,6 +2279,18 @@ int lvmetad_pvscan_single(struct cmd_context *cmd, struct device *dev,
if (!baton.fid)
goto_bad;
+ if (fmt->features & FMT_OBSOLETE) {
+ fmt->ops->destroy_instance(baton.fid);
+ log_warn("WARNING: Disabling lvmetad cache which does not support obsolete (lvm1) metadata.");
+ lvmetad_set_disabled(cmd, LVMETAD_DISABLE_REASON_LVM1);
+ _found_lvm1_metadata = 1;
+ /*
+ * return 1 (success) so that we'll continue to populate lvmetad
+ * instead of leaving the update incomplete.
+ */
+ return 1;
+ }
+
lvmcache_foreach_mda(info, _lvmetad_pvscan_single, &baton);
if (!baton.vg)
@@ -2438,9 +2452,11 @@ int lvmetad_pvscan_all_devs(struct cmd_context *cmd, int do_wait)
}
/*
- * If lvmetad is disabled, and no duplicate PVs were seen, then re-enable lvmetad.
+ * If lvmetad is disabled, and no lvm1 metadata was seen and no
+ * duplicate PVs were seen, then re-enable lvmetad.
*/
- if (lvmetad_is_disabled(cmd, &reason) && !lvmcache_found_duplicate_pvs()) {
+ if (lvmetad_is_disabled(cmd, &reason) &&
+ !lvmcache_found_duplicate_pvs() && !_found_lvm1_metadata) {
log_debug_lvmetad("Enabling lvmetad which was previously disabled.");
lvmetad_clear_disabled(cmd);
}
@@ -3056,6 +3072,9 @@ int lvmetad_is_disabled(struct cmd_context *cmd, const char **reason)
} else if (strstr(reply_reason, LVMETAD_DISABLE_REASON_REPAIR)) {
*reason = "a repair command was run";
+ } else if (strstr(reply_reason, LVMETAD_DISABLE_REASON_LVM1)) {
+ *reason = "LVM1 metadata was found";
+
} else if (strstr(reply_reason, LVMETAD_DISABLE_REASON_DUPLICATES)) {
*reason = "duplicate PVs were found";
diff --git a/lib/commands/toolcontext.c b/lib/commands/toolcontext.c
index e9f9357..6b78ae5 100644
--- a/lib/commands/toolcontext.c
+++ b/lib/commands/toolcontext.c
@@ -36,6 +36,14 @@
#include "sharedlib.h"
#endif
+#ifdef LVM1_INTERNAL
+#include "format1.h"
+#endif
+
+#ifdef POOL_INTERNAL
+#include "format_pool.h"
+#endif
+
#include <locale.h>
#include <sys/stat.h>
#include <sys/syscall.h>
@@ -1134,12 +1142,14 @@ static struct dev_filter *_init_lvmetad_filter_chain(struct cmd_context *cmd)
}
nr_filt++;
+#if 0
/* signature filter. Required. */
if (!(filters[nr_filt] = signature_filter_create(cmd->dev_types))) {
log_error("Failed to create signature device filter");
goto bad;
}
nr_filt++;
+#endif
/* md component filter. Optional, non-critical. */
if (find_config_tree_bool(cmd, devices_md_component_detection_CFG, NULL)) {
@@ -1340,6 +1350,20 @@ static int _init_formats(struct cmd_context *cmd)
const struct dm_config_node *cn;
#endif
+#ifdef LVM1_INTERNAL
+ if (!(fmt = init_lvm1_format(cmd)))
+ return 0;
+ fmt->library = NULL;
+ dm_list_add(&cmd->formats, &fmt->list);
+#endif
+
+#ifdef POOL_INTERNAL
+ if (!(fmt = init_pool_format(cmd)))
+ return 0;
+ fmt->library = NULL;
+ dm_list_add(&cmd->formats, &fmt->list);
+#endif
+
#ifdef HAVE_LIBDL
/* Load any formats in shared libs if not static */
if (!is_static() &&
diff --git a/lib/config/config_settings.h b/lib/config/config_settings.h
index f49709c..3714723 100644
--- a/lib/config/config_settings.h
+++ b/lib/config/config_settings.h
@@ -767,14 +767,26 @@ cfg(global_activation_CFG, "activation", global_CFG_SECTION, 0, CFG_TYPE_BOOL, D
"is not present in the kernel, disabling this should suppress\n"
"the error messages.\n")
-cfg(global_fallback_to_lvm1_CFG, "fallback_to_lvm1", global_CFG_SECTION, CFG_DEFAULT_COMMENTED, CFG_TYPE_BOOL, 0, vsn(1, 0, 18), NULL, 0, NULL,
- "This setting is no longer used.\n")
+cfg(global_fallback_to_lvm1_CFG, "fallback_to_lvm1", global_CFG_SECTION, CFG_DEFAULT_COMMENTED, CFG_TYPE_BOOL, DEFAULT_FALLBACK_TO_LVM1, vsn(1, 0, 18), "@DEFAULT_FALLBACK_TO_LVM1@", 0, NULL,
+ "Try running LVM1 tools if LVM cannot communicate with DM.\n"
+ "This option only applies to 2.4 kernels and is provided to help\n"
+ "switch between device-mapper kernels and LVM1 kernels. The LVM1\n"
+ "tools need to be installed with .lvm1 suffices, e.g. vgscan.lvm1.\n"
+ "They will stop working once the lvm2 on-disk metadata format is used.\n")
cfg(global_format_CFG, "format", global_CFG_SECTION, CFG_DEFAULT_COMMENTED, CFG_TYPE_STRING, DEFAULT_FORMAT, vsn(1, 0, 0), NULL, 0, NULL,
- "This setting is no longer used.\n")
-
+ "The default metadata format that commands should use.\n"
+ "The -M 1|2 option overrides this setting.\n"
+ "#\n"
+ "Accepted values:\n"
+ " lvm1\n"
+ " lvm2\n"
+ "#\n")
+
cfg_array(global_format_libraries_CFG, "format_libraries", global_CFG_SECTION, CFG_DEFAULT_UNDEFINED, CFG_TYPE_STRING, NULL, vsn(1, 0, 0), NULL, 0, NULL,
- "This setting is no longer used.")
+ "Shared libraries that process different metadata formats.\n"
+ "If support for LVM1 metadata was compiled as a shared library use\n"
+ "format_libraries = \"liblvm2format1.so\"\n")
cfg_array(global_segment_libraries_CFG, "segment_libraries", global_CFG_SECTION, CFG_DEFAULT_UNDEFINED, CFG_TYPE_STRING, NULL, vsn(1, 0, 18), NULL, 0, NULL, NULL)
diff --git a/lib/display/display.c b/lib/display/display.c
index 9b4be88..9a928d9 100644
--- a/lib/display/display.c
+++ b/lib/display/display.c
@@ -705,10 +705,13 @@ void vgdisplay_full(const struct volume_group *vg)
log_print("--- Volume group ---");
log_print("VG Name %s", vg->name);
- log_print("System ID %s", (vg->system_id && *vg->system_id) ? vg->system_id : "");
+ log_print("System ID %s", (vg->system_id && *vg->system_id) ? vg->system_id : vg->lvm1_system_id ? : "");
log_print("Format %s", vg->fid->fmt->name);
- log_print("Metadata Areas %d", vg_mda_count(vg));
- log_print("Metadata Sequence No %d", vg->seqno);
+ if (vg->fid->fmt->features & FMT_MDAS) {
+ log_print("Metadata Areas %d",
+ vg_mda_count(vg));
+ log_print("Metadata Sequence No %d", vg->seqno);
+ }
access_str = vg->status & (LVM_READ | LVM_WRITE);
log_print("VG Access %s%s%s%s",
access_str == (LVM_READ | LVM_WRITE) ? "read/write" : "",
diff --git a/lib/format1/.exported_symbols b/lib/format1/.exported_symbols
new file mode 100644
index 0000000..e9fac2e
--- /dev/null
+++ b/lib/format1/.exported_symbols
@@ -0,0 +1 @@
+init_format
diff --git a/lib/format1/Makefile.in b/lib/format1/Makefile.in
new file mode 100644
index 0000000..4a905c0
--- /dev/null
+++ b/lib/format1/Makefile.in
@@ -0,0 +1,33 @@
+#
+# Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+# Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
+#
+# This file is part of LVM2.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = @top_builddir@
+
+SOURCES =\
+ disk-rep.c \
+ format1.c \
+ import-export.c \
+ import-extents.c \
+ layout.c \
+ lvm1-label.c \
+ vg_number.c
+
+LIB_SHARED = liblvm2format1.$(LIB_SUFFIX)
+LIB_VERSION = $(LIB_VERSION_LVM)
+
+include $(top_builddir)/make.tmpl
+
+install: install_lvm2_plugin
diff --git a/lib/format1/disk-rep.c b/lib/format1/disk-rep.c
new file mode 100644
index 0000000..9169d82
--- /dev/null
+++ b/lib/format1/disk-rep.c
@@ -0,0 +1,761 @@
+/*
+ * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "disk-rep.h"
+#include "xlate.h"
+#include "lvmcache.h"
+#include "metadata-exported.h"
+
+#include <fcntl.h>
+
+#define xx16(v) disk->v = xlate16(disk->v)
+#define xx32(v) disk->v = xlate32(disk->v)
+#define xx64(v) disk->v = xlate64(disk->v)
+
+/*
+ * Functions to perform the endian conversion
+ * between disk and core. The same code works
+ * both ways of course.
+ */
+static void _xlate_pvd(struct pv_disk *disk)
+{
+ xx16(version);
+
+ xx32(pv_on_disk.base);
+ xx32(pv_on_disk.size);
+ xx32(vg_on_disk.base);
+ xx32(vg_on_disk.size);
+ xx32(pv_uuidlist_on_disk.base);
+ xx32(pv_uuidlist_on_disk.size);
+ xx32(lv_on_disk.base);
+ xx32(lv_on_disk.size);
+ xx32(pe_on_disk.base);
+ xx32(pe_on_disk.size);
+
+ xx32(pv_major);
+ xx32(pv_number);
+ xx32(pv_status);
+ xx32(pv_allocatable);
+ xx32(pv_size);
+ xx32(lv_cur);
+ xx32(pe_size);
+ xx32(pe_total);
+ xx32(pe_allocated);
+ xx32(pe_start);
+}
+
+static void _xlate_lvd(struct lv_disk *disk)
+{
+ xx32(lv_access);
+ xx32(lv_status);
+ xx32(lv_open);
+ xx32(lv_dev);
+ xx32(lv_number);
+ xx32(lv_mirror_copies);
+ xx32(lv_recovery);
+ xx32(lv_schedule);
+ xx32(lv_size);
+ xx32(lv_snapshot_minor);
+ xx16(lv_chunk_size);
+ xx16(dummy);
+ xx32(lv_allocated_le);
+ xx32(lv_stripes);
+ xx32(lv_stripesize);
+ xx32(lv_badblock);
+ xx32(lv_allocation);
+ xx32(lv_io_timeout);
+ xx32(lv_read_ahead);
+}
+
+static void _xlate_vgd(struct vg_disk *disk)
+{
+ xx32(vg_number);
+ xx32(vg_access);
+ xx32(vg_status);
+ xx32(lv_max);
+ xx32(lv_cur);
+ xx32(lv_open);
+ xx32(pv_max);
+ xx32(pv_cur);
+ xx32(pv_act);
+ xx32(dummy);
+ xx32(vgda);
+ xx32(pe_size);
+ xx32(pe_total);
+ xx32(pe_allocated);
+ xx32(pvg_total);
+}
+
+static void _xlate_extents(struct pe_disk *extents, uint32_t count)
+{
+ unsigned i;
+
+ for (i = 0; i < count; i++) {
+ extents[i].lv_num = xlate16(extents[i].lv_num);
+ extents[i].le_num = xlate16(extents[i].le_num);
+ }
+}
+
+/*
+ * Handle both minor metadata formats.
+ */
+static int _munge_formats(struct pv_disk *pvd)
+{
+ uint32_t pe_start;
+ unsigned b, e;
+
+ switch (pvd->version) {
+ case 1:
+ pvd->pe_start = ((pvd->pe_on_disk.base +
+ pvd->pe_on_disk.size) >> SECTOR_SHIFT);
+ break;
+
+ case 2:
+ pvd->version = 1;
+ pe_start = pvd->pe_start << SECTOR_SHIFT;
+ pvd->pe_on_disk.size = pe_start - pvd->pe_on_disk.base;
+ break;
+
+ default:
+ return 0;
+ }
+
+ /* UUID too long? */
+ if (pvd->pv_uuid[ID_LEN]) {
+ /* Retain ID_LEN chars from end */
+ for (e = ID_LEN; e < sizeof(pvd->pv_uuid); e++) {
+ if (!pvd->pv_uuid[e]) {
+ e--;
+ break;
+ }
+ }
+ for (b = 0; b < ID_LEN; b++) {
+ pvd->pv_uuid[b] = pvd->pv_uuid[++e - ID_LEN];
+ /* FIXME Remove all invalid chars */
+ if (pvd->pv_uuid[b] == '/')
+ pvd->pv_uuid[b] = '#';
+ }
+ memset(&pvd->pv_uuid[ID_LEN], 0, sizeof(pvd->pv_uuid) - ID_LEN);
+ }
+
+ /* If UUID is missing, create one */
+ if (pvd->pv_uuid[0] == '\0') {
+ uuid_from_num((char *)pvd->pv_uuid, pvd->pv_number);
+ pvd->pv_uuid[ID_LEN] = '\0';
+ }
+
+ return 1;
+}
+
+/*
+ * If exported, remove "PV_EXP" from end of VG name
+ */
+static void _munge_exported_vg(struct pv_disk *pvd)
+{
+ int l;
+ size_t s;
+
+ /* Return if PV not in a VG */
+ if ((!*pvd->vg_name))
+ return;
+ /* FIXME also check vgd->status & VG_EXPORTED? */
+
+ l = strlen((char *)pvd->vg_name);
+ s = sizeof(EXPORTED_TAG);
+ if (!strncmp((char *)pvd->vg_name + l - s + 1, EXPORTED_TAG, s)) {
+ pvd->vg_name[l - s + 1] = '\0';
+ pvd->pv_status |= VG_EXPORTED;
+ }
+}
+
+int munge_pvd(struct device *dev, struct pv_disk *pvd)
+{
+ _xlate_pvd(pvd);
+
+ if (pvd->id[0] != 'H' || pvd->id[1] != 'M') {
+ log_very_verbose("%s does not have a valid LVM1 PV identifier",
+ dev_name(dev));
+ return 0;
+ }
+
+ if (!_munge_formats(pvd)) {
+ log_very_verbose("format1: Unknown metadata version %d "
+ "found on %s", pvd->version, dev_name(dev));
+ return 0;
+ }
+
+ /* If VG is exported, set VG name back to the real name */
+ _munge_exported_vg(pvd);
+
+ return 1;
+}
+
+static int _read_pvd(struct device *dev, struct pv_disk *pvd)
+{
+ if (!dev_read_bytes(dev, UINT64_C(0), sizeof(*pvd), pvd)) {
+ log_very_verbose("Failed to read PV data from %s",
+ dev_name(dev));
+ return 0;
+ }
+
+ return munge_pvd(dev, pvd);
+}
+
+static int _read_lvd(struct device *dev, uint64_t pos, struct lv_disk *disk)
+{
+ if (!dev_read_bytes(dev, pos, sizeof(*disk), disk))
+ return_0;
+
+ _xlate_lvd(disk);
+
+ return 1;
+}
+
+int read_vgd(struct device *dev, struct vg_disk *vgd, struct pv_disk *pvd)
+{
+ uint64_t pos = pvd->vg_on_disk.base;
+
+ if (!dev_read_bytes(dev, pos, sizeof(*vgd), vgd))
+ return_0;
+
+ _xlate_vgd(vgd);
+
+ if ((vgd->lv_max > MAX_LV) || (vgd->pv_max > MAX_PV))
+ return_0;
+
+ /* If UUID is missing, create one */
+ if (vgd->vg_uuid[0] == '\0')
+ uuid_from_num((char *)vgd->vg_uuid, vgd->vg_number);
+
+ return 1;
+}
+
+static int _read_uuids(struct disk_list *data)
+{
+ unsigned num_read = 0;
+ struct uuid_list *ul;
+ char buffer[NAME_LEN] __attribute__((aligned(8)));
+ uint64_t pos = data->pvd.pv_uuidlist_on_disk.base;
+ uint64_t end = pos + data->pvd.pv_uuidlist_on_disk.size;
+
+ while (pos < end && num_read < data->vgd.pv_cur) {
+ if (!dev_read_bytes(data->dev, pos, sizeof(buffer), buffer))
+ return_0;
+
+ if (!(ul = dm_pool_alloc(data->mem, sizeof(*ul))))
+ return_0;
+
+ memcpy(ul->uuid, buffer, NAME_LEN);
+ ul->uuid[NAME_LEN - 1] = '\0';
+
+ dm_list_add(&data->uuids, &ul->list);
+
+ pos += NAME_LEN;
+ num_read++;
+ }
+
+ return 1;
+}
+
+static int _check_lvd(struct lv_disk *lvd)
+{
+ return !(lvd->lv_name[0] == '\0');
+}
+
+static int _read_lvs(struct disk_list *data)
+{
+ unsigned int i, lvs_read = 0;
+ uint64_t pos;
+ struct lvd_list *ll;
+ struct vg_disk *vgd = &data->vgd;
+
+ for (i = 0; (i < vgd->lv_max) && (lvs_read < vgd->lv_cur); i++) {
+ pos = data->pvd.lv_on_disk.base + (i * sizeof(struct lv_disk));
+ ll = dm_pool_alloc(data->mem, sizeof(*ll));
+
+ if (!ll)
+ return_0;
+
+ if (!_read_lvd(data->dev, pos, &ll->lvd))
+ return_0;
+
+ if (!_check_lvd(&ll->lvd))
+ continue;
+
+ lvs_read++;
+ dm_list_add(&data->lvds, &ll->list);
+ }
+
+ return 1;
+}
+
+static int _read_extents(struct disk_list *data)
+{
+ size_t len = sizeof(struct pe_disk) * data->pvd.pe_total;
+ struct pe_disk *extents = dm_pool_alloc(data->mem, len);
+ uint64_t pos = data->pvd.pe_on_disk.base;
+
+ if (!extents)
+ return_0;
+
+ if (!dev_read_bytes(data->dev, pos, len, extents))
+ return_0;
+
+ _xlate_extents(extents, data->pvd.pe_total);
+ data->extents = extents;
+
+ return 1;
+}
+
+static void __update_lvmcache(const struct format_type *fmt,
+ struct disk_list *dl,
+ struct device *dev, const char *vgid,
+ unsigned exported)
+{
+ struct lvmcache_info *info;
+ const char *vgname = *((char *)dl->pvd.vg_name) ?
+ (char *)dl->pvd.vg_name : fmt->orphan_vg_name;
+
+ if (!(info = lvmcache_add(fmt->labeller, (char *)dl->pvd.pv_uuid, dev,
+ vgname, vgid, exported ? EXPORTED_VG : 0))) {
+ stack;
+ return;
+ }
+
+ lvmcache_set_device_size(info, ((uint64_t)xlate32(dl->pvd.pv_size)) << SECTOR_SHIFT);
+ lvmcache_del_mdas(info);
+}
+
+static struct disk_list *__read_disk(const struct format_type *fmt,
+ struct device *dev, struct dm_pool *mem,
+ const char *vg_name)
+{
+ struct disk_list *dl = dm_pool_zalloc(mem, sizeof(*dl));
+ const char *name = dev_name(dev);
+
+ if (!dl)
+ return_NULL;
+
+ dl->dev = dev;
+ dl->mem = mem;
+ dm_list_init(&dl->uuids);
+ dm_list_init(&dl->lvds);
+
+ if (!_read_pvd(dev, &dl->pvd))
+ goto_bad;
+
+ /*
+ * is it an orphan ?
+ */
+ if (!*dl->pvd.vg_name) {
+ log_very_verbose("%s is not a member of any format1 VG", name);
+
+ __update_lvmcache(fmt, dl, dev, fmt->orphan_vg_name, 0);
+ return (vg_name) ? NULL : dl;
+ }
+
+ if (!read_vgd(dl->dev, &dl->vgd, &dl->pvd)) {
+ log_error("Failed to read VG data from PV (%s)", name);
+ __update_lvmcache(fmt, dl, dev, fmt->orphan_vg_name, 0);
+ goto bad;
+ }
+
+ if (vg_name && strcmp(vg_name, (char *)dl->pvd.vg_name)) {
+ log_very_verbose("%s is not a member of the VG %s",
+ name, vg_name);
+ __update_lvmcache(fmt, dl, dev, fmt->orphan_vg_name, 0);
+ goto bad;
+ }
+
+ __update_lvmcache(fmt, dl, dev, (char *)dl->vgd.vg_uuid,
+ dl->vgd.vg_status & VG_EXPORTED);
+
+ if (!_read_uuids(dl)) {
+ log_error("Failed to read PV uuid list from %s", name);
+ goto bad;
+ }
+
+ if (!_read_lvs(dl)) {
+ log_error("Failed to read LV's from %s", name);
+ goto bad;
+ }
+
+ if (!_read_extents(dl)) {
+ log_error("Failed to read extents from %s", name);
+ goto bad;
+ }
+
+ log_very_verbose("Found %s in %sVG %s", name,
+ (dl->vgd.vg_status & VG_EXPORTED) ? "exported " : "",
+ dl->pvd.vg_name);
+
+ return dl;
+
+ bad:
+ dm_pool_free(dl->mem, dl);
+ return NULL;
+}
+
+struct disk_list *read_disk(const struct format_type *fmt, struct device *dev,
+ struct dm_pool *mem, const char *vg_name)
+{
+ struct disk_list *dl;
+
+ if (!dev_open_readonly(dev))
+ return_NULL;
+
+ dl = __read_disk(fmt, dev, mem, vg_name);
+
+ if (!dev_close(dev))
+ stack;
+
+ return dl;
+}
+
+static void _add_pv_to_list(struct cmd_context *cmd, struct dm_list *head, struct disk_list *data)
+{
+ struct pv_disk *pvd;
+ struct disk_list *diskl;
+
+ dm_list_iterate_items(diskl, head) {
+ pvd = &diskl->pvd;
+ if (!strncmp((char *)data->pvd.pv_uuid, (char *)pvd->pv_uuid,
+ sizeof(pvd->pv_uuid))) {
+ if (!dev_subsystem_part_major(cmd->dev_types, data->dev)) {
+ log_very_verbose("Ignoring duplicate PV %s on "
+ "%s", pvd->pv_uuid,
+ dev_name(data->dev));
+ return;
+ }
+ log_very_verbose("Duplicate PV %s - using %s %s",
+ pvd->pv_uuid, dev_subsystem_name(cmd->dev_types, data->dev),
+ dev_name(data->dev));
+ dm_list_del(&diskl->list);
+ break;
+ }
+ }
+ dm_list_add(head, &data->list);
+}
+
+struct _read_pvs_in_vg_baton {
+ const char *vg_name;
+ struct dm_list *head;
+ struct disk_list *data;
+ struct dm_pool *mem;
+ int empty;
+};
+
+static int _read_pv_in_vg(struct lvmcache_info *info, void *baton)
+{
+ struct _read_pvs_in_vg_baton *b = baton;
+
+ b->empty = 0;
+
+ if (!lvmcache_device(info) ||
+ !(b->data = read_disk(lvmcache_fmt(info), lvmcache_device(info), b->mem, b->vg_name)))
+ return 0; /* stop here */
+
+ _add_pv_to_list(lvmcache_fmt(info)->cmd, b->head, b->data);
+ return 1;
+}
+
+/*
+ * Build a list of pv_d's structures, allocated from mem.
+ * We keep track of the first object allocated from the pool
+ * so we can free off all the memory if something goes wrong.
+ */
+int read_pvs_in_vg(const struct format_type *fmt, const char *vg_name,
+ struct dev_filter *filter, struct dm_pool *mem,
+ struct dm_list *head)
+{
+ struct dev_iter *iter;
+ struct device *dev;
+ struct lvmcache_vginfo *vginfo;
+ struct _read_pvs_in_vg_baton baton;
+
+ baton.head = head;
+ baton.empty = 1;
+ baton.data = NULL;
+ baton.mem = mem;
+ baton.vg_name = vg_name;
+
+ /* Fast path if we already saw this VG and cached the list of PVs */
+ if (vg_name && (vginfo = lvmcache_vginfo_from_vgname(vg_name, NULL))) {
+
+ lvmcache_foreach_pv(vginfo, _read_pv_in_vg, &baton);
+
+ if (!baton.empty) {
+ /* Did we find the whole VG? */
+ if (!vg_name || is_orphan_vg(vg_name) ||
+ (baton.data && *baton.data->pvd.vg_name &&
+ dm_list_size(head) == baton.data->vgd.pv_cur))
+ return 1;
+
+ /* Failed */
+ dm_list_init(head);
+ /* vgcache_del(vg_name); */
+ }
+ }
+
+ if (!(iter = dev_iter_create(filter, 1))) {
+ log_error("read_pvs_in_vg: dev_iter_create failed");
+ return 0;
+ }
+
+ /* Otherwise do a complete scan */
+ for (dev = dev_iter_get(iter); dev; dev = dev_iter_get(iter)) {
+ if ((baton.data = read_disk(fmt, dev, mem, vg_name))) {
+ _add_pv_to_list(fmt->cmd, head, baton.data);
+ }
+ }
+ dev_iter_destroy(iter);
+
+ if (dm_list_empty(head))
+ return 0;
+
+ return 1;
+}
+
+static int _write_vgd(struct disk_list *data)
+{
+ struct vg_disk *vgd = &data->vgd;
+ uint64_t pos = data->pvd.vg_on_disk.base;
+
+ log_debug_metadata("Writing %s VG metadata to %s at %" PRIu64 " len %" PRIsize_t,
+ data->pvd.vg_name, dev_name(data->dev), pos, sizeof(*vgd));
+
+ _xlate_vgd(vgd);
+ if (!dev_write(data->dev, pos, sizeof(*vgd), DEV_IO_FMT1, vgd))
+ return_0;
+
+ _xlate_vgd(vgd);
+
+ return 1;
+}
+
+static int _write_uuids(struct disk_list *data)
+{
+ struct uuid_list *ul;
+ uint64_t pos = data->pvd.pv_uuidlist_on_disk.base;
+ uint64_t end = pos + data->pvd.pv_uuidlist_on_disk.size;
+
+ dm_list_iterate_items(ul, &data->uuids) {
+ if (pos >= end) {
+ log_error("Too many uuids to fit on %s",
+ dev_name(data->dev));
+ return 0;
+ }
+
+ log_debug_metadata("Writing %s uuidlist to %s at %" PRIu64 " len %d",
+ data->pvd.vg_name, dev_name(data->dev),
+ pos, NAME_LEN);
+
+ if (!dev_write(data->dev, pos, NAME_LEN, DEV_IO_FMT1, ul->uuid))
+ return_0;
+
+ pos += NAME_LEN;
+ }
+
+ return 1;
+}
+
+static int _write_lvd(struct device *dev, uint64_t pos, struct lv_disk *disk)
+{
+ log_debug_metadata("Writing %s LV %s metadata to %s at %" PRIu64 " len %"
+ PRIsize_t, disk->vg_name, disk->lv_name, dev_name(dev),
+ pos, sizeof(*disk));
+
+ _xlate_lvd(disk);
+ if (!dev_write(dev, pos, sizeof(*disk), DEV_IO_FMT1, disk))
+ return_0;
+
+ _xlate_lvd(disk);
+
+ return 1;
+}
+
+static int _write_lvs(struct disk_list *data)
+{
+ struct lvd_list *ll;
+ uint64_t pos, offset;
+
+ pos = data->pvd.lv_on_disk.base;
+
+ if (!dev_set(data->dev, pos, data->pvd.lv_on_disk.size, DEV_IO_FMT1, 0)) {
+ log_error("Couldn't zero lv area on device '%s'",
+ dev_name(data->dev));
+ return 0;
+ }
+
+ dm_list_iterate_items(ll, &data->lvds) {
+ offset = sizeof(struct lv_disk) * ll->lvd.lv_number;
+ if (offset + sizeof(struct lv_disk) > data->pvd.lv_on_disk.size) {
+ log_error("lv_number %d too large", ll->lvd.lv_number);
+ return 0;
+ }
+
+ if (!_write_lvd(data->dev, pos + offset, &ll->lvd))
+ return_0;
+ }
+
+ return 1;
+}
+
+static int _write_extents(struct disk_list *data)
+{
+ size_t len = sizeof(struct pe_disk) * data->pvd.pe_total;
+ struct pe_disk *extents = data->extents;
+ uint64_t pos = data->pvd.pe_on_disk.base;
+
+ log_debug_metadata("Writing %s extents metadata to %s at %" PRIu64 " len %"
+ PRIsize_t, data->pvd.vg_name, dev_name(data->dev),
+ pos, len);
+
+ _xlate_extents(extents, data->pvd.pe_total);
+ if (!dev_write(data->dev, pos, len, DEV_IO_FMT1, extents))
+ return_0;
+
+ _xlate_extents(extents, data->pvd.pe_total);
+
+ return 1;
+}
+
+static int _write_pvd(struct disk_list *data)
+{
+ char *buf;
+ uint64_t pos = data->pvd.pv_on_disk.base;
+ size_t size = data->pvd.pv_on_disk.size;
+
+ if (size < sizeof(struct pv_disk)) {
+ log_error("Invalid PV structure size.");
+ return 0;
+ }
+
+ /* Make sure that the gap between the PV structure and
+ the next one is zeroed in order to make non LVM tools
+ happy (idea from AED) */
+ buf = dm_zalloc(size);
+ if (!buf) {
+ log_error("Couldn't allocate temporary PV buffer.");
+ return 0;
+ }
+
+ memcpy(buf, &data->pvd, sizeof(struct pv_disk));
+
+ log_debug_metadata("Writing %s PV metadata to %s at %" PRIu64 " len %"
+ PRIsize_t, data->pvd.vg_name, dev_name(data->dev),
+ pos, size);
+
+ _xlate_pvd((struct pv_disk *) buf);
+ if (!dev_write(data->dev, pos, size, DEV_IO_FMT1, buf)) {
+ dm_free(buf);
+ return_0;
+ }
+
+ dm_free(buf);
+ return 1;
+}
+
+/*
+ * assumes the device has been opened.
+ */
+static int __write_all_pvd(const struct format_type *fmt __attribute__((unused)),
+ struct disk_list *data, int write_vg_metadata)
+{
+ const char *pv_name = dev_name(data->dev);
+
+ if (!_write_pvd(data)) {
+ log_error("Failed to write PV structure onto %s", pv_name);
+ return 0;
+ }
+
+ /* vgcache_add(data->pvd.vg_name, data->vgd.vg_uuid, data->dev, fmt); */
+ /*
+ * Stop here for orphan PVs or if VG metadata write not requested.
+ */
+ if ((data->pvd.vg_name[0] == '\0') || !write_vg_metadata) {
+ /* if (!test_mode())
+ vgcache_add(data->pvd.vg_name, NULL, data->dev, fmt); */
+ return 1;
+ }
+
+ /* if (!test_mode())
+ vgcache_add(data->pvd.vg_name, data->vgd.vg_uuid, data->dev,
+ fmt); */
+
+ if (!_write_vgd(data)) {
+ log_error("Failed to write VG data to %s", pv_name);
+ return 0;
+ }
+
+ if (!_write_uuids(data)) {
+ log_error("Failed to write PV uuid list to %s", pv_name);
+ return 0;
+ }
+
+ if (!_write_lvs(data)) {
+ log_error("Failed to write LV's to %s", pv_name);
+ return 0;
+ }
+
+ if (!_write_extents(data)) {
+ log_error("Failed to write extents to %s", pv_name);
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * opens the device and hands to the above fn.
+ */
+static int _write_all_pvd(const struct format_type *fmt, struct disk_list *data, int write_vg_metadata)
+{
+ int r;
+
+ if (!data->dev)
+ return_0;
+
+ if (!dev_open(data->dev))
+ return_0;
+
+ r = __write_all_pvd(fmt, data, write_vg_metadata);
+
+ if (!dev_close(data->dev))
+ stack;
+
+ return r;
+}
+
+/*
+ * Writes all the given pv's to disk. Does very
+ * little sanity checking, so make sure correct
+ * data is passed to here.
+ */
+int write_disks(const struct format_type *fmt, struct dm_list *pvs, int write_vg_metadata)
+{
+ struct disk_list *dl;
+
+ dm_list_iterate_items(dl, pvs) {
+ if (!(_write_all_pvd(fmt, dl, write_vg_metadata)))
+ return_0;
+
+ log_very_verbose("Successfully wrote data to %s",
+ dev_name(dl->dev));
+ }
+
+ return 1;
+}
diff --git a/lib/format1/disk-rep.h b/lib/format1/disk-rep.h
new file mode 100644
index 0000000..221ae8e
--- /dev/null
+++ b/lib/format1/disk-rep.h
@@ -0,0 +1,250 @@
+/*
+ * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef DISK_REP_FORMAT1_H
+#define DISK_REP_FORMAT1_H
+
+#include "metadata.h"
+#include "toolcontext.h"
+
+#define MAX_PV 256
+#define MAX_LV 256
+#define MAX_VG 99
+
+#define LVM_BLK_MAJOR 58
+
+#define MAX_PV_SIZE ((uint32_t) -1) /* 2TB in sectors - 1 */
+#define PE_SIZE_PV_SIZE_REL 5 /* PV size must be at least 5 times PE size */
+#define MAX_LE_TOTAL 65534 /* 2^16 - 2 */
+#define MAX_PE_TOTAL ((uint32_t) -2)
+
+#define UNMAPPED_EXTENT 0
+
+/* volume group */
+#define VG_ACTIVE 0x01 /* vg_status */
+#define VG_EXPORTED 0x02 /* " */
+#define VG_EXTENDABLE 0x04 /* " */
+
+#define VG_READ 0x01 /* vg_access */
+#define VG_WRITE 0x02 /* " */
+#define VG_CLUSTERED 0x04 /* " */
+#define VG_SHARED 0x08 /* " */
+
+/* logical volume */
+#define LV_ACTIVE 0x01 /* lv_status */
+#define LV_SPINDOWN 0x02 /* " */
+#define LV_PERSISTENT_MINOR 0x04 /* " */
+
+#define LV_READ 0x01 /* lv_access */
+#define LV_WRITE 0x02 /* " */
+#define LV_SNAPSHOT 0x04 /* " */
+#define LV_SNAPSHOT_ORG 0x08 /* " */
+
+#define LV_BADBLOCK_ON 0x01 /* lv_badblock */
+
+#define LV_STRICT 0x01 /* lv_allocation */
+#define LV_CONTIGUOUS 0x02 /* " */
+
+/* physical volume */
+#define PV_ACTIVE 0x01 /* pv_status */
+#define PV_ALLOCATABLE 0x02 /* pv_allocatable */
+
+#define EXPORTED_TAG "PV_EXP" /* Identifier for exported PV */
+#define IMPORTED_TAG "PV_IMP" /* Identifier for imported PV */
+
+struct data_area {
+ uint32_t base;
+ uint32_t size;
+} __attribute__ ((packed));
+
+struct pv_disk {
+ int8_t id[2];
+ uint16_t version; /* lvm version */
+ struct data_area pv_on_disk;
+ struct data_area vg_on_disk;
+ struct data_area pv_uuidlist_on_disk;
+ struct data_area lv_on_disk;
+ struct data_area pe_on_disk;
+ int8_t pv_uuid[NAME_LEN];
+ int8_t vg_name[NAME_LEN];
+ int8_t system_id[NAME_LEN]; /* for vgexport/vgimport */
+ uint32_t pv_major;
+ uint32_t pv_number;
+ uint32_t pv_status;
+ uint32_t pv_allocatable;
+ uint32_t pv_size;
+ uint32_t lv_cur;
+ uint32_t pe_size;
+ uint32_t pe_total;
+ uint32_t pe_allocated;
+
+ /* only present on version == 2 pv's */
+ uint32_t pe_start;
+} __attribute__ ((packed));
+
+struct lv_disk {
+ int8_t lv_name[NAME_LEN];
+ int8_t vg_name[NAME_LEN];
+ uint32_t lv_access;
+ uint32_t lv_status;
+ uint32_t lv_open;
+ uint32_t lv_dev;
+ uint32_t lv_number;
+ uint32_t lv_mirror_copies; /* for future use */
+ uint32_t lv_recovery; /* " */
+ uint32_t lv_schedule; /* " */
+ uint32_t lv_size;
+ uint32_t lv_snapshot_minor; /* minor number of original */
+ uint16_t lv_chunk_size; /* chunk size of snapshot */
+ uint16_t dummy;
+ uint32_t lv_allocated_le;
+ uint32_t lv_stripes;
+ uint32_t lv_stripesize;
+ uint32_t lv_badblock; /* for future use */
+ uint32_t lv_allocation;
+ uint32_t lv_io_timeout; /* for future use */
+ uint32_t lv_read_ahead;
+} __attribute__ ((packed));
+
+struct vg_disk {
+ int8_t vg_uuid[ID_LEN]; /* volume group UUID */
+ int8_t vg_name_dummy[NAME_LEN - ID_LEN]; /* rest of v1 VG name */
+ uint32_t vg_number; /* volume group number */
+ uint32_t vg_access; /* read/write */
+ uint32_t vg_status; /* active or not */
+ uint32_t lv_max; /* maximum logical volumes */
+ uint32_t lv_cur; /* current logical volumes */
+ uint32_t lv_open; /* open logical volumes */
+ uint32_t pv_max; /* maximum physical volumes */
+ uint32_t pv_cur; /* current physical volumes FU */
+ uint32_t pv_act; /* active physical volumes */
+ uint32_t dummy;
+ uint32_t vgda; /* volume group descriptor arrays FU */
+ uint32_t pe_size; /* physical extent size in sectors */
+ uint32_t pe_total; /* total of physical extents */
+ uint32_t pe_allocated; /* allocated physical extents */
+ uint32_t pvg_total; /* physical volume groups FU */
+} __attribute__ ((packed));
+
+struct pe_disk {
+ uint16_t lv_num;
+ uint16_t le_num;
+} __attribute__ ((packed));
+
+struct uuid_list {
+ struct dm_list list;
+ char uuid[NAME_LEN] __attribute__((aligned(8)));
+};
+
+struct lvd_list {
+ struct dm_list list;
+ struct lv_disk lvd;
+};
+
+struct disk_list {
+ struct dm_list list;
+ struct dm_pool *mem;
+ struct device *dev;
+
+ struct pv_disk pvd __attribute__((aligned(8)));
+ struct vg_disk vgd __attribute__((aligned(8)));
+ struct dm_list uuids __attribute__((aligned(8)));
+ struct dm_list lvds __attribute__((aligned(8)));
+ struct pe_disk *extents __attribute__((aligned(8)));
+};
+
+/*
+ * Layout constants.
+ */
+#define METADATA_ALIGN 4096UL
+#define LVM1_PE_ALIGN (65536UL >> SECTOR_SHIFT) /* PE alignment */
+
+#define METADATA_BASE 0UL
+#define PV_SIZE 1024UL
+#define VG_SIZE 4096UL
+
+/*
+ * Functions to calculate layout info.
+ */
+int calculate_layout(struct disk_list *dl);
+int calculate_extent_count(struct physical_volume *pv, uint32_t extent_size,
+ uint32_t max_extent_count, uint64_t pe_start);
+
+/*
+ * Low level io routines which read/write
+ * disk_lists.
+ */
+
+struct disk_list *read_disk(const struct format_type *fmt, struct device *dev,
+ struct dm_pool *mem, const char *vg_name);
+
+int read_pvs_in_vg(const struct format_type *fmt, const char *vg_name,
+ struct dev_filter *filter,
+ struct dm_pool *mem, struct dm_list *results);
+
+int write_disks(const struct format_type *fmt, struct dm_list *pvds,
+ int write_vg_metadata);
+
+/*
+ * Functions to translate to between disk and in
+ * core structures.
+ */
+int import_pv(const struct format_type *fmt, struct dm_pool *mem,
+ struct device *dev, struct volume_group *vg,
+ struct physical_volume *pv, struct pv_disk *pvd,
+ struct vg_disk *vgd);
+int export_pv(struct cmd_context *cmd, struct dm_pool *mem,
+ struct volume_group *vg,
+ struct pv_disk *pvd, struct physical_volume *pv);
+
+int import_vg(struct dm_pool *mem,
+ struct volume_group *vg, struct disk_list *dl);
+int export_vg(struct vg_disk *vgd, struct volume_group *vg);
+
+int import_lv(struct cmd_context *cmd, struct dm_pool *mem,
+ struct logical_volume *lv, struct lv_disk *lvd);
+
+int import_extents(struct cmd_context *cmd, struct volume_group *vg,
+ struct dm_list *pvds);
+int export_extents(struct disk_list *dl, uint32_t lv_num,
+ struct logical_volume *lv, struct physical_volume *pv);
+
+int import_pvs(const struct format_type *fmt, struct dm_pool *mem,
+ struct volume_group *vg, struct dm_list *pvds);
+
+int import_lvs(struct dm_pool *mem, struct volume_group *vg, struct dm_list *pvds);
+int export_lvs(struct disk_list *dl, struct volume_group *vg,
+ struct physical_volume *pv, const char *dev_dir);
+
+int import_snapshots(struct dm_pool *mem, struct volume_group *vg,
+ struct dm_list *pvds);
+
+int export_uuids(struct disk_list *dl, struct volume_group *vg);
+
+void export_numbers(struct dm_list *pvds, struct volume_group *vg);
+
+void export_pv_act(struct dm_list *pvds);
+int munge_pvd(struct device *dev, struct pv_disk *pvd);
+int read_vgd(struct device *dev, struct vg_disk *vgd, struct pv_disk *pvd);
+
+/* blech */
+int get_free_vg_number(struct format_instance *fid, struct dev_filter *filter,
+ const char *candidate_vg, int *result);
+int export_vg_number(struct format_instance *fid, struct dm_list *pvds,
+ const char *vg_name, struct dev_filter *filter);
+
+int generate_lvm1_system_id(struct cmd_context *cmd, char *s, const char *prefix);
+
+#endif
diff --git a/lib/format1/format1.c b/lib/format1/format1.c
new file mode 100644
index 0000000..6e7e888
--- /dev/null
+++ b/lib/format1/format1.c
@@ -0,0 +1,630 @@
+/*
+ * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2012 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "disk-rep.h"
+#include "limits.h"
+#include "display.h"
+#include "toolcontext.h"
+#include "lvm1-label.h"
+#include "format1.h"
+#include "segtype.h"
+#include "pv_alloc.h"
+
+/* VG consistency checks */
+static int _check_vgs(struct dm_list *pvs, struct volume_group *vg)
+{
+ struct dm_list *pvh, *t;
+ struct disk_list *dl = NULL;
+ struct disk_list *first = NULL;
+
+ uint32_t pv_count = 0;
+ uint32_t exported = 0;
+ int first_time = 1;
+
+ /*
+ * If there are exported and unexported PVs, ignore exported ones.
+ * This means an active VG won't be affected if disks are inserted
+ * bearing an exported VG with the same name.
+ */
+ dm_list_iterate_items(dl, pvs) {
+ if (first_time) {
+ exported = dl->pvd.pv_status & VG_EXPORTED;
+ first_time = 0;
+ continue;
+ }
+
+ if (exported != (dl->pvd.pv_status & VG_EXPORTED)) {
+ /* Remove exported PVs */
+ dm_list_iterate_safe(pvh, t, pvs) {
+ dl = dm_list_item(pvh, struct disk_list);
+ if (dl->pvd.pv_status & VG_EXPORTED)
+ dm_list_del(pvh);
+ }
+ break;
+ }
+ }
+
+ /* Remove any PVs with VG structs that differ from the first */
+ dm_list_iterate_safe(pvh, t, pvs) {
+ dl = dm_list_item(pvh, struct disk_list);
+
+ if (!first)
+ first = dl;
+
+ else if (memcmp(&first->vgd, &dl->vgd, sizeof(first->vgd))) {
+ log_error("VG data differs between PVs %s and %s",
+ dev_name(first->dev), dev_name(dl->dev));
+ log_debug_metadata("VG data on %s: %s %s %" PRIu32 " %" PRIu32
+ " %" PRIu32 " %" PRIu32 " %" PRIu32 " %"
+ PRIu32 " %" PRIu32 " %" PRIu32 " %" PRIu32
+ " %" PRIu32 " %" PRIu32 " %" PRIu32 " %"
+ PRIu32 " %" PRIu32 " %" PRIu32,
+ dev_name(first->dev), first->vgd.vg_uuid,
+ first->vgd.vg_name_dummy,
+ first->vgd.vg_number, first->vgd.vg_access,
+ first->vgd.vg_status, first->vgd.lv_max,
+ first->vgd.lv_cur, first->vgd.lv_open,
+ first->vgd.pv_max, first->vgd.pv_cur,
+ first->vgd.pv_act, first->vgd.dummy,
+ first->vgd.vgda, first->vgd.pe_size,
+ first->vgd.pe_total, first->vgd.pe_allocated,
+ first->vgd.pvg_total);
+ log_debug_metadata("VG data on %s: %s %s %" PRIu32 " %" PRIu32
+ " %" PRIu32 " %" PRIu32 " %" PRIu32 " %"
+ PRIu32 " %" PRIu32 " %" PRIu32 " %" PRIu32
+ " %" PRIu32 " %" PRIu32 " %" PRIu32 " %"
+ PRIu32 " %" PRIu32 " %" PRIu32,
+ dev_name(dl->dev), dl->vgd.vg_uuid,
+ dl->vgd.vg_name_dummy, dl->vgd.vg_number,
+ dl->vgd.vg_access, dl->vgd.vg_status,
+ dl->vgd.lv_max, dl->vgd.lv_cur,
+ dl->vgd.lv_open, dl->vgd.pv_max,
+ dl->vgd.pv_cur, dl->vgd.pv_act, dl->vgd.dummy,
+ dl->vgd.vgda, dl->vgd.pe_size,
+ dl->vgd.pe_total, dl->vgd.pe_allocated,
+ dl->vgd.pvg_total);
+ dm_list_del(pvh);
+ return 0;
+ }
+ pv_count++;
+ }
+
+ /* On entry to fn, list known to be non-empty */
+ if (pv_count != first->vgd.pv_cur) {
+ log_error("%d PV(s) found for VG %s: expected %d",
+ pv_count, first->pvd.vg_name, first->vgd.pv_cur);
+ vg->status |= PARTIAL_VG;
+ }
+
+ return 1;
+}
+
+static int _fix_partial_vg(struct volume_group *vg, struct dm_list *pvs)
+{
+ uint32_t extent_count = 0;
+ struct disk_list *dl;
+ struct dm_list *pvh;
+ struct pv_list *pvl;
+ struct lv_list *ll;
+ struct lv_segment *seg;
+
+ /*
+ * FIXME: code should remap missing segments to error segment.
+ * Also current mapping code allocates 1 segment per missing extent.
+ * For now bail out completely - allocated structures are not complete
+ */
+ dm_list_iterate_items(ll, &vg->lvs)
+ dm_list_iterate_items(seg, &ll->lv->segments) {
+
+ /* area_count is always 1 here, s == 0 */
+ if (seg_type(seg, 0) != AREA_PV)
+ continue;
+
+ if (seg_pv(seg, 0))
+ continue;
+
+ log_error("Partial mode support for missing lvm1 PVs and "
+ "partially available LVs is currently not implemented.");
+ return 0;
+ }
+
+ dm_list_iterate(pvh, pvs) {
+ dl = dm_list_item(pvh, struct disk_list);
+ extent_count += dl->pvd.pe_total;
+ }
+
+ /* FIXME: move this to one place to pv_manip */
+ if (!(pvl = dm_pool_zalloc(vg->vgmem, sizeof(*pvl))) ||
+ !(pvl->pv = dm_pool_zalloc(vg->vgmem, sizeof(*pvl->pv))))
+ return_0;
+
+ /* Use vg uuid with replaced first chars to "missing" as missing PV UUID */
+ memcpy(&pvl->pv->id.uuid, vg->id.uuid, sizeof(pvl->pv->id.uuid));
+ memcpy(&pvl->pv->id.uuid, "missing", 7);
+
+ if (!(pvl->pv->vg_name = dm_pool_strdup(vg->vgmem, vg->name)))
+ goto_out;
+ memcpy(&pvl->pv->vgid, &vg->id, sizeof(vg->id));
+ pvl->pv->status |= MISSING_PV;
+ dm_list_init(&pvl->pv->tags);
+ dm_list_init(&pvl->pv->segments);
+
+ pvl->pv->pe_size = vg->extent_size;
+ pvl->pv->pe_count = vg->extent_count - extent_count;
+ if (!alloc_pv_segment_whole_pv(vg->vgmem, pvl->pv))
+ goto_out;
+
+ add_pvl_to_vgs(vg, pvl);
+ log_debug_metadata("%s: partial VG, allocated missing PV using %d extents.",
+ vg->name, pvl->pv->pe_count);
+
+ return 1;
+out:
+ dm_pool_free(vg->vgmem, pvl);
+ return 0;
+}
+
+static struct volume_group *_format1_vg_read(struct format_instance *fid,
+ const char *vg_name,
+ struct metadata_area *mda __attribute__((unused)),
+ struct cached_vg_fmtdata **vg_fmtdata __attribute__((unused)),
+ unsigned *use_previous_vg __attribute__((unused)))
+{
+ struct volume_group *vg;
+ struct disk_list *dl;
+ DM_LIST_INIT(pvs);
+
+ /* Strip dev_dir if present */
+ if (vg_name)
+ vg_name = strip_dir(vg_name, fid->fmt->cmd->dev_dir);
+
+ if (!(vg = alloc_vg("format1_vg_read", fid->fmt->cmd, NULL)))
+ return_NULL;
+
+ if (!read_pvs_in_vg(fid->fmt, vg_name, fid->fmt->cmd->filter,
+ vg->vgmem, &pvs))
+ goto_bad;
+
+ if (dm_list_empty(&pvs))
+ goto_bad;
+
+ if (!_check_vgs(&pvs, vg))
+ goto_bad;
+
+ dl = dm_list_item(pvs.n, struct disk_list);
+
+ if (!import_vg(vg->vgmem, vg, dl))
+ goto_bad;
+
+ if (!import_pvs(fid->fmt, vg->vgmem, vg, &pvs))
+ goto_bad;
+
+ if (!import_lvs(vg->vgmem, vg, &pvs))
+ goto_bad;
+
+ if (!import_extents(fid->fmt->cmd, vg, &pvs))
+ goto_bad;
+
+ /* FIXME: workaround - temporary assignment of fid */
+ vg->fid = fid;
+ if (!import_snapshots(vg->vgmem, vg, &pvs)) {
+ vg->fid = NULL;
+ goto_bad;
+ }
+ vg->fid = NULL;
+
+ /* Fix extents counts by adding missing PV if partial VG */
+ if ((vg->status & PARTIAL_VG) && !_fix_partial_vg(vg, &pvs))
+ goto_bad;
+
+ vg_set_fid(vg, fid);
+
+ return vg;
+
+bad:
+ release_vg(vg);
+
+ return NULL;
+}
+
+static struct disk_list *_flatten_pv(struct format_instance *fid,
+ struct dm_pool *mem, struct volume_group *vg,
+ struct physical_volume *pv,
+ const char *dev_dir)
+{
+ struct disk_list *dl = dm_pool_alloc(mem, sizeof(*dl));
+
+ if (!dl)
+ return_NULL;
+
+ dl->mem = mem;
+ dl->dev = pv->dev;
+
+ dm_list_init(&dl->uuids);
+ dm_list_init(&dl->lvds);
+
+ if (!export_pv(fid->fmt->cmd, mem, vg, &dl->pvd, pv) ||
+ !export_vg(&dl->vgd, vg) ||
+ !export_uuids(dl, vg) ||
+ !export_lvs(dl, vg, pv, dev_dir) || !calculate_layout(dl)) {
+ dm_pool_free(mem, dl);
+ return_NULL;
+ }
+
+ return dl;
+}
+
+static int _flatten_vg(struct format_instance *fid, struct dm_pool *mem,
+ struct volume_group *vg,
+ struct dm_list *pvds, const char *dev_dir,
+ struct dev_filter *filter)
+{
+ struct pv_list *pvl;
+ struct disk_list *data;
+
+ dm_list_iterate_items(pvl, &vg->pvs) {
+ if (!(data = _flatten_pv(fid, mem, vg, pvl->pv, dev_dir)))
+ return_0;
+
+ dm_list_add(pvds, &data->list);
+ }
+
+ export_numbers(pvds, vg);
+ export_pv_act(pvds);
+
+ if (!export_vg_number(fid, pvds, vg->name, filter))
+ return_0;
+
+ return 1;
+}
+
+static int _format1_vg_write(struct format_instance *fid, struct volume_group *vg,
+ struct metadata_area *mda __attribute__((unused)))
+{
+ struct dm_pool *mem = dm_pool_create("lvm1 vg_write", VG_MEMPOOL_CHUNK);
+ struct dm_list pvds;
+ int r = 0;
+
+ if (!mem)
+ return_0;
+
+ dm_list_init(&pvds);
+
+ r = (_flatten_vg(fid, mem, vg, &pvds, fid->fmt->cmd->dev_dir,
+ fid->fmt->cmd->filter) &&
+ write_disks(fid->fmt, &pvds, 1));
+
+ lvmcache_update_vg(vg, 0);
+ dm_pool_destroy(mem);
+ return r;
+}
+
+static int _format1_pv_read(const struct format_type *fmt, const char *pv_name,
+ struct physical_volume *pv, int scan_label_only __attribute__((unused)))
+{
+ struct dm_pool *mem = dm_pool_create("lvm1 pv_read", 1024);
+ struct disk_list *dl;
+ struct device *dev;
+ int r = 0;
+
+ log_very_verbose("Reading physical volume data %s from disk", pv_name);
+
+ if (!mem)
+ return_0;
+
+ if (!(dev = dev_cache_get(pv_name, fmt->cmd->filter)))
+ goto_out;
+
+ if (!(dl = read_disk(fmt, dev, mem, NULL)))
+ goto_out;
+
+ if (!import_pv(fmt, fmt->cmd->mem, dl->dev, NULL, pv, &dl->pvd, &dl->vgd))
+ goto_out;
+
+ pv->fmt = fmt;
+
+ r = 1;
+
+ out:
+ dm_pool_destroy(mem);
+ return r;
+}
+
+static int _format1_pv_initialise(const struct format_type * fmt,
+ struct pv_create_args *pva,
+ struct physical_volume * pv)
+{
+ if (pv->size > MAX_PV_SIZE)
+ pv->size--;
+ if (pv->size > MAX_PV_SIZE) {
+ log_error("Physical volumes cannot be bigger than %s",
+ display_size(fmt->cmd, (uint64_t) MAX_PV_SIZE));
+ return 0;
+ }
+
+ /* Nothing more to do if extent size isn't provided */
+ if (!pva->extent_size)
+ return 1;
+
+ /*
+ * This works out pe_start and pe_count.
+ */
+ if (!calculate_extent_count(pv, pva->extent_size, pva->extent_count, pva->pe_start))
+ return_0;
+
+ /* Retain existing extent locations exactly */
+ if (((pva->pe_start || pva->extent_count) && (pva->pe_start != pv->pe_start)) ||
+ (pva->extent_count && (pva->extent_count != pv->pe_count))) {
+ log_error("Metadata would overwrite physical extents");
+ return 0;
+ }
+
+ return 1;
+}
+
+static int _format1_pv_setup(const struct format_type *fmt,
+ struct physical_volume *pv,
+ struct volume_group *vg)
+{
+ struct pv_create_args pva = { .id = {{0}},
+ .idp = NULL,
+ .ba_start = 0,
+ .ba_size = 0,
+ .pe_start = 0,
+ .extent_count = 0,
+ .extent_size = vg->extent_size};
+
+ return _format1_pv_initialise(fmt, &pva, pv);
+}
+
+static int _format1_lv_setup(struct format_instance *fid, struct logical_volume *lv)
+{
+ uint64_t max_size = UINT_MAX;
+
+ if (!*lv->lvid.s)
+ lvid_from_lvnum(&lv->lvid, &lv->vg->id, find_free_lvnum(lv));
+
+ if (lv->le_count > MAX_LE_TOTAL) {
+ log_error("logical volumes cannot contain more than "
+ "%d extents.", MAX_LE_TOTAL);
+ return 0;
+ }
+ if (lv->size > max_size) {
+ log_error("logical volumes cannot be larger than %s",
+ display_size(fid->fmt->cmd, max_size));
+ return 0;
+ }
+
+ return 1;
+}
+
+static int _format1_pv_write(const struct format_type *fmt, struct physical_volume *pv)
+{
+ struct dm_pool *mem;
+ struct disk_list *dl;
+ struct dm_list pvs;
+ struct lvmcache_info *info;
+ int pe_count, pe_size, pe_start;
+ int r = 1;
+
+ if (!(info = lvmcache_add(fmt->labeller, (char *) &pv->id, pv->dev,
+ pv->vg_name, NULL, 0)))
+ return_0;
+
+ lvmcache_update_pv(info, pv, fmt);
+ lvmcache_del_mdas(info);
+ lvmcache_del_das(info);
+ lvmcache_del_bas(info);
+
+ dm_list_init(&pvs);
+
+ pe_count = pv->pe_count;
+ pe_size = pv->pe_size;
+ pe_start = pv->pe_start;
+
+ /* Ensure any residual PE structure is gone */
+ pv->pe_size = pv->pe_count = 0;
+ pv->pe_start = LVM1_PE_ALIGN;
+
+ if (!(mem = dm_pool_create("lvm1 pv_write", 1024)))
+ return_0;
+
+ if (!(dl = dm_pool_alloc(mem, sizeof(*dl))))
+ goto_bad;
+
+ dl->mem = mem;
+ dl->dev = pv->dev;
+ dm_list_init(&dl->uuids);
+ dm_list_init(&dl->lvds);
+
+ if (!export_pv(fmt->cmd, mem, NULL, &dl->pvd, pv))
+ goto_bad;
+
+ /* must be set to be able to zero gap after PV structure in
+ dev_write in order to make other disk tools happy */
+ dl->pvd.pv_on_disk.base = METADATA_BASE;
+ dl->pvd.pv_on_disk.size = PV_SIZE;
+ dl->pvd.pe_on_disk.base = LVM1_PE_ALIGN << SECTOR_SHIFT;
+
+ dm_list_add(&pvs, &dl->list);
+ if (!write_disks(fmt, &pvs, 0))
+ goto_bad;
+
+ goto out;
+
+ bad:
+ r = 0;
+
+ out:
+ pv->pe_size = pe_size;
+ pv->pe_count = pe_count;
+ pv->pe_start = pe_start;
+
+ dm_pool_destroy(mem);
+ return r;
+}
+
+static int _format1_vg_setup(struct format_instance *fid, struct volume_group *vg)
+{
+ /* just check max_pv and max_lv */
+ if (!vg->max_lv || vg->max_lv >= MAX_LV)
+ vg->max_lv = MAX_LV - 1;
+
+ if (!vg->max_pv || vg->max_pv >= MAX_PV)
+ vg->max_pv = MAX_PV - 1;
+
+ if (!vg_check_new_extent_size(vg->fid->fmt, vg->extent_size))
+ return_0;
+
+ /* Generate lvm1_system_id if not yet set */
+ if (!*vg->lvm1_system_id &&
+ !generate_lvm1_system_id(vg->cmd, vg->lvm1_system_id, ""))
+ return_0;
+
+ return 1;
+}
+
+static int _format1_segtype_supported(struct format_instance *fid __attribute__((unused)),
+ const struct segment_type *segtype)
+{
+ if (!(segtype->flags & SEG_FORMAT1_SUPPORT))
+ return_0;
+
+ return 1;
+}
+
+static struct metadata_area_ops _metadata_format1_ops = {
+ .vg_read = _format1_vg_read,
+ .vg_write = _format1_vg_write,
+};
+
+static struct format_instance *_format1_create_instance(const struct format_type *fmt,
+ const struct format_instance_ctx *fic)
+{
+ struct format_instance *fid;
+ struct metadata_area *mda;
+
+ if (!(fid = alloc_fid(fmt, fic)))
+ return_NULL;
+
+ /* Define a NULL metadata area */
+ if (!(mda = dm_pool_zalloc(fid->mem, sizeof(*mda)))) {
+ log_error("Unable to allocate metadata area structure "
+ "for lvm1 format");
+ goto bad;
+ }
+
+ mda->ops = &_metadata_format1_ops;
+ mda->metadata_locn = NULL;
+ mda->status = 0;
+ dm_list_add(&fid->metadata_areas_in_use, &mda->list);
+
+ return fid;
+
+bad:
+ dm_pool_destroy(fid->mem);
+ return NULL;
+}
+
+static void _format1_destroy_instance(struct format_instance *fid)
+{
+ if (--fid->ref_count <= 1)
+ dm_pool_destroy(fid->mem);
+}
+
+static void _format1_destroy(struct format_type *fmt)
+{
+ if (fmt->orphan_vg)
+ free_orphan_vg(fmt->orphan_vg);
+
+ dm_free(fmt);
+}
+
+static struct format_handler _format1_ops = {
+ .pv_read = _format1_pv_read,
+ .pv_initialise = _format1_pv_initialise,
+ .pv_setup = _format1_pv_setup,
+ .pv_write = _format1_pv_write,
+ .lv_setup = _format1_lv_setup,
+ .vg_setup = _format1_vg_setup,
+ .segtype_supported = _format1_segtype_supported,
+ .create_instance = _format1_create_instance,
+ .destroy_instance = _format1_destroy_instance,
+ .destroy = _format1_destroy,
+};
+
+#ifdef LVM1_INTERNAL
+struct format_type *init_lvm1_format(struct cmd_context *cmd)
+#else /* Shared */
+struct format_type *init_format(struct cmd_context *cmd);
+struct format_type *init_format(struct cmd_context *cmd)
+#endif
+{
+ struct format_type *fmt = dm_malloc(sizeof(*fmt));
+ struct format_instance_ctx fic;
+ struct format_instance *fid;
+
+ if (!fmt) {
+ log_error("Failed to allocate format1 format type structure.");
+ return NULL;
+ }
+
+ fmt->cmd = cmd;
+ fmt->ops = &_format1_ops;
+ fmt->name = FMT_LVM1_NAME;
+ fmt->alias = NULL;
+ fmt->orphan_vg_name = FMT_LVM1_ORPHAN_VG_NAME;
+ fmt->features = FMT_RESTRICTED_LVIDS | FMT_ORPHAN_ALLOCATABLE |
+ FMT_RESTRICTED_READAHEAD | FMT_OBSOLETE |
+ FMT_SYSTEMID_ON_PVS;
+ fmt->private = NULL;
+
+ dm_list_init(&fmt->mda_ops);
+
+ if (!(fmt->labeller = lvm1_labeller_create(fmt))) {
+ log_error("Couldn't create lvm1 label handler.");
+ dm_free(fmt);
+ return NULL;
+ }
+
+ if (!(label_register_handler(fmt->labeller))) {
+ log_error("Couldn't register lvm1 label handler.");
+ fmt->labeller->ops->destroy(fmt->labeller);
+ dm_free(fmt);
+ return NULL;
+ }
+
+ if (!(fmt->orphan_vg = alloc_vg("format1_orphan", cmd, fmt->orphan_vg_name))) {
+ log_error("Couldn't create lvm1 orphan VG.");
+ dm_free(fmt);
+ return NULL;
+ }
+
+ fic.type = FMT_INSTANCE_AUX_MDAS;
+ fic.context.vg_ref.vg_name = fmt->orphan_vg_name;
+ fic.context.vg_ref.vg_id = NULL;
+
+ if (!(fid = _format1_create_instance(fmt, &fic))) {
+ _format1_destroy(fmt);
+ return_NULL;
+ }
+
+ vg_set_fid(fmt->orphan_vg, fid);
+
+ log_very_verbose("Initialised format: %s", fmt->name);
+
+ return fmt;
+}
diff --git a/lib/format1/format1.h b/lib/format1/format1.h
new file mode 100644
index 0000000..42ddc66
--- /dev/null
+++ b/lib/format1/format1.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _LVM_FORMAT1_H
+#define _LVM_FORMAT1_H
+
+#include "metadata.h"
+#include "lvmcache.h"
+
+#define FMT_LVM1_NAME "lvm1"
+#define FMT_LVM1_ORPHAN_VG_NAME ORPHAN_VG_NAME(FMT_LVM1_NAME)
+
+#ifdef LVM1_INTERNAL
+struct format_type *init_lvm1_format(struct cmd_context *cmd);
+#endif
+
+#endif
diff --git a/lib/format1/import-export.c b/lib/format1/import-export.c
new file mode 100644
index 0000000..c29527b
--- /dev/null
+++ b/lib/format1/import-export.c
@@ -0,0 +1,680 @@
+/*
+ * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * Translates between disk and in-core formats.
+ */
+
+#include "lib.h"
+#include "disk-rep.h"
+#include "lvm-string.h"
+#include "toolcontext.h"
+#include "segtype.h"
+#include "pv_alloc.h"
+#include "display.h"
+#include "metadata.h"
+
+#include <time.h>
+
+static int _check_vg_name(const char *name)
+{
+ return strlen(name) < NAME_LEN;
+}
+
+/*
+ * Extracts the last part of a path.
+ */
+static char *_create_lv_name(struct dm_pool *mem, const char *full_name)
+{
+ const char *ptr = strrchr(full_name, '/');
+
+ if (!ptr)
+ ptr = full_name;
+ else
+ ptr++;
+
+ return dm_pool_strdup(mem, ptr);
+}
+
+int import_pv(const struct format_type *fmt, struct dm_pool *mem,
+ struct device *dev, struct volume_group *vg,
+ struct physical_volume *pv, struct pv_disk *pvd,
+ struct vg_disk *vgd)
+{
+ uint64_t size;
+
+ memset(pv, 0, sizeof(*pv));
+ memcpy(&pv->id, pvd->pv_uuid, ID_LEN);
+
+ pv->dev = dev;
+ if (!*pvd->vg_name)
+ pv->vg_name = fmt->orphan_vg_name;
+ else if (!(pv->vg_name = dm_pool_strdup(mem, (char *)pvd->vg_name))) {
+ log_error("Volume Group name allocation failed.");
+ return 0;
+ }
+
+ memcpy(&pv->vgid, vgd->vg_uuid, sizeof(vg->id));
+
+ /* Store system_id from first PV if PV belongs to a VG */
+ if (vg && !*vg->lvm1_system_id)
+ strncpy(vg->lvm1_system_id, (char *)pvd->system_id, NAME_LEN);
+
+ if (vg &&
+ strncmp(vg->lvm1_system_id, (char *)pvd->system_id, sizeof(pvd->system_id)))
+ log_very_verbose("System ID %s on %s differs from %s for "
+ "volume group", pvd->system_id,
+ pv_dev_name(pv), vg->lvm1_system_id);
+
+ /*
+ * If exported, we still need to flag in pv->status too because
+ * we don't always have a struct volume_group when we need this.
+ */
+ if (pvd->pv_status & VG_EXPORTED)
+ pv->status |= EXPORTED_VG;
+
+ if (pvd->pv_allocatable)
+ pv->status |= ALLOCATABLE_PV;
+
+ pv->size = pvd->pv_size;
+ pv->pe_size = pvd->pe_size;
+ pv->pe_start = pvd->pe_start;
+ pv->pe_count = pvd->pe_total;
+ pv->pe_alloc_count = 0;
+ pv->pe_align = 0;
+ pv->is_labelled = 0; /* format1 PVs have no label */
+ pv->label_sector = 0;
+
+ /* Fix up pv size if missing or impossibly large */
+ if (!pv->size || pv->size > (1ULL << 62)) {
+ if (!dev_get_size(dev, &pv->size)) {
+ log_error("%s: Couldn't get size.", pv_dev_name(pv));
+ return 0;
+ }
+ log_verbose("Fixing up missing format1 size (%s) "
+ "for PV %s", display_size(fmt->cmd, pv->size),
+ pv_dev_name(pv));
+ if (vg) {
+ size = pv->pe_count * (uint64_t) vg->extent_size +
+ pv->pe_start;
+ if (size > pv->size)
+ log_warn("WARNING: Physical Volume %s is too "
+ "large for underlying device",
+ pv_dev_name(pv));
+ }
+ }
+
+ dm_list_init(&pv->tags);
+ dm_list_init(&pv->segments);
+
+ if (!alloc_pv_segment_whole_pv(mem, pv))
+ return_0;
+
+ return 1;
+}
+
+int generate_lvm1_system_id(struct cmd_context *cmd, char *s, const char *prefix)
+{
+
+ if (dm_snprintf(s, NAME_LEN, "%s%s" FMTu64,
+ prefix, cmd->hostname, (uint64_t)time(NULL)) < 0) {
+ log_error("Generated LVM1 format system_id too long");
+ return 0;
+ }
+
+ return 1;
+}
+
+int export_pv(struct cmd_context *cmd, struct dm_pool *mem __attribute__((unused)),
+ struct volume_group *vg,
+ struct pv_disk *pvd, struct physical_volume *pv)
+{
+ memset(pvd, 0, sizeof(*pvd));
+
+ pvd->id[0] = 'H';
+ pvd->id[1] = 'M';
+ pvd->version = 1;
+
+ memcpy(pvd->pv_uuid, pv->id.uuid, ID_LEN);
+
+ if (pv->vg_name && !is_orphan(pv) && !(pv->status & UNLABELLED_PV)) {
+ if (!_check_vg_name(pv->vg_name))
+ return_0;
+ strncpy((char *)pvd->vg_name, pv->vg_name, sizeof(pvd->vg_name));
+ }
+
+ /* Preserve existing system_id if it exists */
+ if (vg && vg->lvm1_system_id && *vg->lvm1_system_id)
+ strncpy((char *)pvd->system_id, vg->lvm1_system_id, sizeof(pvd->system_id));
+ else if (vg && vg->system_id && *vg->system_id)
+ strncpy((char *)pvd->system_id, vg->system_id, sizeof(pvd->system_id));
+
+ /* Is VG already exported or being exported? */
+ if (vg && vg_is_exported(vg)) {
+ /* Does system_id need setting? */
+ if (!vg->lvm1_system_id || !*vg->lvm1_system_id ||
+ strncmp(vg->lvm1_system_id, EXPORTED_TAG,
+ sizeof(EXPORTED_TAG) - 1)) {
+ if (!generate_lvm1_system_id(cmd, (char *)pvd->system_id, EXPORTED_TAG))
+ return_0;
+ }
+ if (strlen((char *)pvd->vg_name) + sizeof(EXPORTED_TAG) >
+ sizeof(pvd->vg_name)) {
+ log_error("Volume group name %s too long to export",
+ pvd->vg_name);
+ return 0;
+ }
+ strcat((char *)pvd->vg_name, EXPORTED_TAG);
+ }
+
+ /* Is VG being imported? */
+ if (vg && !vg_is_exported(vg) && vg->lvm1_system_id && *vg->lvm1_system_id &&
+ !strncmp(vg->lvm1_system_id, EXPORTED_TAG, sizeof(EXPORTED_TAG) - 1)) {
+ if (!generate_lvm1_system_id(cmd, (char *)pvd->system_id, IMPORTED_TAG))
+ return_0;
+ }
+
+ /* Generate system_id if PV is in VG */
+ if (!pvd->system_id[0])
+ if (!generate_lvm1_system_id(cmd, (char *)pvd->system_id, ""))
+ return_0;
+
+ /* Update internal system_id if we changed it */
+ if (vg && vg->lvm1_system_id &&
+ (!*vg->lvm1_system_id ||
+ strncmp(vg->lvm1_system_id, (char *)pvd->system_id, sizeof(pvd->system_id))))
+ strncpy(vg->lvm1_system_id, (char *)pvd->system_id, NAME_LEN);
+
+ //pvd->pv_major = MAJOR(pv->dev);
+
+ if (pv->status & ALLOCATABLE_PV)
+ pvd->pv_allocatable = PV_ALLOCATABLE;
+
+ pvd->pv_size = pv->size;
+ pvd->lv_cur = 0; /* this is set when exporting the lv list */
+ if (vg)
+ pvd->pe_size = vg->extent_size;
+ else
+ pvd->pe_size = pv->pe_size;
+ pvd->pe_total = pv->pe_count;
+ pvd->pe_allocated = pv->pe_alloc_count;
+ pvd->pe_start = pv->pe_start;
+
+ return 1;
+}
+
+int import_vg(struct dm_pool *mem,
+ struct volume_group *vg, struct disk_list *dl)
+{
+ struct vg_disk *vgd = &dl->vgd;
+ memcpy(vg->id.uuid, vgd->vg_uuid, ID_LEN);
+
+ if (!_check_vg_name((char *)dl->pvd.vg_name))
+ return_0;
+
+ if (!(vg->name = dm_pool_strdup(mem, (char *)dl->pvd.vg_name)))
+ return_0;
+
+ if (!(vg->lvm1_system_id = dm_pool_zalloc(mem, NAME_LEN + 1)))
+ return_0;
+
+ if (vgd->vg_status & VG_EXPORTED)
+ vg->status |= EXPORTED_VG;
+
+ if (vgd->vg_status & VG_EXTENDABLE)
+ vg->status |= RESIZEABLE_VG;
+
+ if (vgd->vg_access & VG_READ)
+ vg->status |= LVM_READ;
+
+ if (vgd->vg_access & VG_WRITE)
+ vg->status |= LVM_WRITE;
+
+ if (vgd->vg_access & VG_CLUSTERED)
+ vg->status |= CLUSTERED;
+
+ if (vgd->vg_access & VG_SHARED)
+ vg->status |= SHARED;
+
+ vg->extent_size = vgd->pe_size;
+ vg->extent_count = vgd->pe_total;
+ vg->free_count = vgd->pe_total;
+ vg->max_lv = vgd->lv_max;
+ vg->max_pv = vgd->pv_max;
+ vg->alloc = ALLOC_NORMAL;
+
+ return 1;
+}
+
+int export_vg(struct vg_disk *vgd, struct volume_group *vg)
+{
+ memset(vgd, 0, sizeof(*vgd));
+ memcpy(vgd->vg_uuid, vg->id.uuid, ID_LEN);
+
+ if (vg->status & LVM_READ)
+ vgd->vg_access |= VG_READ;
+
+ if (vg->status & LVM_WRITE)
+ vgd->vg_access |= VG_WRITE;
+
+ if (vg_is_clustered(vg))
+ vgd->vg_access |= VG_CLUSTERED;
+
+ if (vg->status & SHARED)
+ vgd->vg_access |= VG_SHARED;
+
+ if (vg_is_exported(vg))
+ vgd->vg_status |= VG_EXPORTED;
+
+ if (vg_is_resizeable(vg))
+ vgd->vg_status |= VG_EXTENDABLE;
+
+ vgd->lv_max = vg->max_lv;
+ vgd->lv_cur = vg_visible_lvs(vg) + snapshot_count(vg);
+
+ vgd->pv_max = vg->max_pv;
+ vgd->pv_cur = vg->pv_count;
+
+ vgd->pe_size = vg->extent_size;
+ vgd->pe_total = vg->extent_count;
+ vgd->pe_allocated = vg->extent_count - vg->free_count;
+
+ return 1;
+}
+
+int import_lv(struct cmd_context *cmd, struct dm_pool *mem,
+ struct logical_volume *lv, struct lv_disk *lvd)
+{
+ if (!(lv->name = _create_lv_name(mem, (char *)lvd->lv_name)))
+ return_0;
+
+ lv->status |= VISIBLE_LV;
+
+ if (lvd->lv_status & LV_SPINDOWN)
+ lv->status |= SPINDOWN_LV;
+
+ if (lvd->lv_status & LV_PERSISTENT_MINOR) {
+ lv->status |= FIXED_MINOR;
+ lv->minor = MINOR(lvd->lv_dev);
+ lv->major = MAJOR(lvd->lv_dev);
+ } else {
+ lv->major = -1;
+ lv->minor = -1;
+ }
+
+ if (lvd->lv_access & LV_READ)
+ lv->status |= LVM_READ;
+
+ if (lvd->lv_access & LV_WRITE)
+ lv->status |= LVM_WRITE;
+
+ if (lvd->lv_badblock)
+ lv->status |= BADBLOCK_ON;
+
+ /* Drop the unused LV_STRICT here */
+ if (lvd->lv_allocation & LV_CONTIGUOUS)
+ lv->alloc = ALLOC_CONTIGUOUS;
+ else
+ lv->alloc = ALLOC_NORMAL;
+
+ if (!lvd->lv_read_ahead)
+ lv->read_ahead = cmd->default_settings.read_ahead;
+ else
+ lv->read_ahead = lvd->lv_read_ahead;
+
+ lv->size = lvd->lv_size;
+ lv->le_count = lvd->lv_allocated_le;
+
+ return 1;
+}
+
+static void _export_lv(struct lv_disk *lvd, struct volume_group *vg,
+ struct logical_volume *lv, const char *dev_dir)
+{
+ memset(lvd, 0, sizeof(*lvd));
+ snprintf((char *)lvd->lv_name, sizeof(lvd->lv_name), "%s%s/%s",
+ dev_dir, vg->name, lv->name);
+
+ (void) dm_strncpy((char *)lvd->vg_name, vg->name, sizeof(lvd->vg_name));
+
+ if (lv->status & LVM_READ)
+ lvd->lv_access |= LV_READ;
+
+ if (lv->status & LVM_WRITE)
+ lvd->lv_access |= LV_WRITE;
+
+ if (lv->status & SPINDOWN_LV)
+ lvd->lv_status |= LV_SPINDOWN;
+
+ if (lv->status & FIXED_MINOR) {
+ lvd->lv_status |= LV_PERSISTENT_MINOR;
+ lvd->lv_dev = MKDEV(lv->major, lv->minor);
+ } else {
+ lvd->lv_dev = MKDEV(LVM_BLK_MAJOR, lvnum_from_lvid(&lv->lvid));
+ }
+
+ if (lv->read_ahead == DM_READ_AHEAD_AUTO ||
+ lv->read_ahead == DM_READ_AHEAD_NONE)
+ lvd->lv_read_ahead = 0;
+ else
+ lvd->lv_read_ahead = lv->read_ahead;
+
+ lvd->lv_stripes =
+ dm_list_item(lv->segments.n, struct lv_segment)->area_count;
+ lvd->lv_stripesize =
+ dm_list_item(lv->segments.n, struct lv_segment)->stripe_size;
+
+ lvd->lv_size = lv->size;
+ lvd->lv_allocated_le = lv->le_count;
+
+ if (lv->status & BADBLOCK_ON)
+ lvd->lv_badblock = LV_BADBLOCK_ON;
+
+ if (lv->alloc == ALLOC_CONTIGUOUS)
+ lvd->lv_allocation |= LV_CONTIGUOUS;
+}
+
+int export_extents(struct disk_list *dl, uint32_t lv_num,
+ struct logical_volume *lv, struct physical_volume *pv)
+{
+ struct pe_disk *ped;
+ struct lv_segment *seg;
+ uint32_t pe, s;
+
+ dm_list_iterate_items(seg, &lv->segments) {
+ for (s = 0; s < seg->area_count; s++) {
+ if (!(seg->segtype->flags & SEG_FORMAT1_SUPPORT)) {
+ log_error("Segment type %s in LV %s: "
+ "unsupported by format1",
+ lvseg_name(seg), lv->name);
+ return 0;
+ }
+ if (seg_type(seg, s) != AREA_PV) {
+ log_error("Non-PV stripe found in LV %s: "
+ "unsupported by format1", lv->name);
+ return 0;
+ }
+ if (seg_pv(seg, s) != pv)
+ continue; /* not our pv */
+
+ for (pe = 0; pe < (seg->len / seg->area_count); pe++) {
+ ped = &dl->extents[pe + seg_pe(seg, s)];
+ ped->lv_num = lv_num;
+ ped->le_num = (seg->le / seg->area_count) + pe +
+ s * (lv->le_count / seg->area_count);
+ }
+ }
+ }
+
+ return 1;
+}
+
+int import_pvs(const struct format_type *fmt, struct dm_pool *mem,
+ struct volume_group *vg, struct dm_list *pvds)
+{
+ struct disk_list *dl;
+ struct pv_list *pvl;
+
+ vg->pv_count = 0;
+ dm_list_iterate_items(dl, pvds) {
+ if (!(pvl = dm_pool_zalloc(mem, sizeof(*pvl))) ||
+ !(pvl->pv = dm_pool_alloc(mem, sizeof(*pvl->pv))))
+ return_0;
+
+ if (!import_pv(fmt, mem, dl->dev, vg, pvl->pv, &dl->pvd, &dl->vgd))
+ return_0;
+
+ pvl->pv->fmt = fmt;
+ add_pvl_to_vgs(vg, pvl);
+ }
+
+ return 1;
+}
+
+static struct logical_volume *_add_lv(struct dm_pool *mem,
+ struct volume_group *vg,
+ struct lv_disk *lvd)
+{
+ struct logical_volume *lv;
+
+ if (!(lv = alloc_lv(mem)))
+ return_NULL;
+
+ lvid_from_lvnum(&lv->lvid, &vg->id, lvd->lv_number);
+
+ if (!import_lv(vg->cmd, mem, lv, lvd))
+ goto_bad;
+
+ if (!link_lv_to_vg(vg, lv))
+ goto_bad;
+
+ return lv;
+bad:
+ dm_pool_free(mem, lv);
+ return NULL;
+}
+
+int import_lvs(struct dm_pool *mem, struct volume_group *vg, struct dm_list *pvds)
+{
+ struct disk_list *dl;
+ struct lvd_list *ll;
+ struct lv_disk *lvd;
+
+ dm_list_iterate_items(dl, pvds) {
+ dm_list_iterate_items(ll, &dl->lvds) {
+ lvd = &ll->lvd;
+
+ if (!find_lv(vg, (char *)lvd->lv_name) &&
+ !_add_lv(mem, vg, lvd))
+ return_0;
+ }
+ }
+
+ return 1;
+}
+
+/* FIXME: tidy */
+int export_lvs(struct disk_list *dl, struct volume_group *vg,
+ struct physical_volume *pv, const char *dev_dir)
+{
+ int r = 0;
+ struct lv_list *ll;
+ struct lvd_list *lvdl;
+ size_t len;
+ uint32_t lv_num;
+ struct dm_hash_table *lvd_hash;
+
+ if (!_check_vg_name(vg->name))
+ return_0;
+
+ if (!(lvd_hash = dm_hash_create(32)))
+ return_0;
+
+ /*
+ * setup the pv's extents array
+ */
+ len = sizeof(struct pe_disk) * dl->pvd.pe_total;
+ if (!(dl->extents = dm_pool_zalloc(dl->mem, len)))
+ goto_out;
+
+ dm_list_iterate_items(ll, &vg->lvs) {
+ if (lv_is_snapshot(ll->lv))
+ continue;
+
+ if (!(lvdl = dm_pool_alloc(dl->mem, sizeof(*lvdl))))
+ goto_out;
+
+ _export_lv(&lvdl->lvd, vg, ll->lv, dev_dir);
+
+ lv_num = lvnum_from_lvid(&ll->lv->lvid);
+ lvdl->lvd.lv_number = lv_num;
+
+ if (!dm_hash_insert(lvd_hash, ll->lv->name, &lvdl->lvd))
+ goto_out;
+
+ if (!export_extents(dl, lv_num + 1, ll->lv, pv))
+ goto_out;
+
+ if (lv_is_origin(ll->lv))
+ lvdl->lvd.lv_access |= LV_SNAPSHOT_ORG;
+
+ if (lv_is_cow(ll->lv)) {
+ lvdl->lvd.lv_access |= LV_SNAPSHOT;
+ lvdl->lvd.lv_chunk_size = ll->lv->snapshot->chunk_size;
+ lvdl->lvd.lv_snapshot_minor =
+ lvnum_from_lvid(&ll->lv->snapshot->origin->lvid);
+ }
+
+ dm_list_add(&dl->lvds, &lvdl->list);
+ dl->pvd.lv_cur++;
+ }
+
+ r = 1;
+
+ out:
+ dm_hash_destroy(lvd_hash);
+ return r;
+}
+
+/*
+ * FIXME: More inefficient code.
+ */
+int import_snapshots(struct dm_pool *mem __attribute__((unused)), struct volume_group *vg,
+ struct dm_list *pvds)
+{
+ struct logical_volume *lvs[MAX_LV] = { 0 };
+ struct disk_list *dl;
+ struct lvd_list *ll;
+ struct lv_disk *lvd;
+ int lvnum;
+ struct logical_volume *org, *cow;
+
+ /* build an index of lv numbers */
+ dm_list_iterate_items(dl, pvds) {
+ dm_list_iterate_items(ll, &dl->lvds) {
+ lvd = &ll->lvd;
+
+ lvnum = lvd->lv_number;
+
+ if (lvnum >= MAX_LV) {
+ log_error("Logical volume number "
+ "out of bounds.");
+ return 0;
+ }
+
+ if (!lvs[lvnum] &&
+ !(lvs[lvnum] = find_lv(vg, (char *)lvd->lv_name))) {
+ log_error("Couldn't find logical volume '%s'.",
+ lvd->lv_name);
+ return 0;
+ }
+ }
+ }
+
+ /*
+ * Now iterate through yet again adding the snapshots.
+ */
+ dm_list_iterate_items(dl, pvds) {
+ dm_list_iterate_items(ll, &dl->lvds) {
+ lvd = &ll->lvd;
+
+ if (!(lvd->lv_access & LV_SNAPSHOT))
+ continue;
+
+ lvnum = lvd->lv_number;
+ cow = lvs[lvnum];
+ if (!(org = lvs[lvd->lv_snapshot_minor])) {
+ log_error("Couldn't find origin logical volume "
+ "for snapshot '%s'.", lvd->lv_name);
+ return 0;
+ }
+
+ /* we may have already added this snapshot */
+ if (lv_is_cow(cow))
+ continue;
+
+ /* insert the snapshot */
+ if (!vg_add_snapshot(org, cow, NULL,
+ org->le_count,
+ lvd->lv_chunk_size)) {
+ log_error("Couldn't add snapshot.");
+ return 0;
+ }
+ }
+ }
+
+ return 1;
+}
+
+int export_uuids(struct disk_list *dl, struct volume_group *vg)
+{
+ struct uuid_list *ul;
+ struct pv_list *pvl;
+
+ dm_list_iterate_items(pvl, &vg->pvs) {
+ if (!(ul = dm_pool_alloc(dl->mem, sizeof(*ul))))
+ return_0;
+
+ memset(ul->uuid, 0, sizeof(ul->uuid));
+ memcpy(ul->uuid, pvl->pv->id.uuid, ID_LEN);
+
+ dm_list_add(&dl->uuids, &ul->list);
+ }
+ return 1;
+}
+
+/*
+ * This calculates the nasty pv_number field
+ * used by LVM1.
+ */
+void export_numbers(struct dm_list *pvds, struct volume_group *vg __attribute__((unused)))
+{
+ struct disk_list *dl;
+ int pv_num = 1;
+
+ dm_list_iterate_items(dl, pvds)
+ dl->pvd.pv_number = pv_num++;
+}
+
+/*
+ * Calculate vg_disk->pv_act.
+ */
+void export_pv_act(struct dm_list *pvds)
+{
+ struct disk_list *dl;
+ int act = 0;
+
+ dm_list_iterate_items(dl, pvds)
+ if (dl->pvd.pv_status & PV_ACTIVE)
+ act++;
+
+ dm_list_iterate_items(dl, pvds)
+ dl->vgd.pv_act = act;
+}
+
+int export_vg_number(struct format_instance *fid, struct dm_list *pvds,
+ const char *vg_name, struct dev_filter *filter)
+{
+ struct disk_list *dl;
+ int vg_num;
+
+ if (!get_free_vg_number(fid, filter, vg_name, &vg_num))
+ return_0;
+
+ dm_list_iterate_items(dl, pvds)
+ dl->vgd.vg_number = vg_num;
+
+ return 1;
+}
diff --git a/lib/format1/import-extents.c b/lib/format1/import-extents.c
new file mode 100644
index 0000000..c583741
--- /dev/null
+++ b/lib/format1/import-extents.c
@@ -0,0 +1,377 @@
+/*
+ * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2017 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "metadata.h"
+#include "disk-rep.h"
+#include "lv_alloc.h"
+#include "display.h"
+#include "segtype.h"
+
+/*
+ * After much thought I have decided it is easier,
+ * and probably no less efficient, to convert the
+ * pe->le map to a full le->pe map, and then
+ * process this to get the segments form that
+ * we're after. Any code which goes directly from
+ * the pe->le map to segments would be gladly
+ * accepted, if it is less complicated than this
+ * file.
+ */
+struct pe_specifier {
+ struct physical_volume *pv;
+ uint32_t pe;
+};
+
+struct lv_map {
+ struct logical_volume *lv;
+ uint32_t stripes;
+ uint32_t stripe_size;
+ struct pe_specifier *map;
+};
+
+static struct dm_hash_table *_create_lv_maps(struct dm_pool *mem,
+ struct volume_group *vg)
+{
+ struct dm_hash_table *maps = dm_hash_create(32);
+ struct lv_list *ll;
+ struct lv_map *lvm;
+
+ if (!maps) {
+ log_error("Unable to create hash table for holding "
+ "extent maps.");
+ return NULL;
+ }
+
+ dm_list_iterate_items(ll, &vg->lvs) {
+ if (lv_is_snapshot(ll->lv))
+ continue;
+
+ if (!(lvm = dm_pool_alloc(mem, sizeof(*lvm))))
+ goto_bad;
+
+ lvm->lv = ll->lv;
+ /*
+ * Alloc 1 extra element, so the loop in _area_length() and
+ * _check_stripe() finds the last map member as noncontinuous.
+ */
+ if (!(lvm->map = dm_pool_zalloc(mem, sizeof(*lvm->map)
+ * (ll->lv->le_count + 1))))
+ goto_bad;
+
+ if (!dm_hash_insert(maps, ll->lv->name, lvm))
+ goto_bad;
+ }
+
+ return maps;
+
+ bad:
+ dm_hash_destroy(maps);
+ return NULL;
+}
+
+static int _fill_lv_array(struct lv_map **lvs,
+ struct dm_hash_table *maps, struct disk_list *dl)
+{
+ struct lvd_list *ll;
+ struct lv_map *lvm;
+
+ memset(lvs, 0, sizeof(*lvs) * MAX_LV);
+
+ dm_list_iterate_items(ll, &dl->lvds) {
+ if (!(lvm = dm_hash_lookup(maps, strrchr((char *)ll->lvd.lv_name, '/')
+ + 1))) {
+ log_error("Physical volume (%s) contains an "
+ "unknown logical volume (%s).",
+ dev_name(dl->dev), ll->lvd.lv_name);
+ return 0;
+ }
+
+ lvm->stripes = ll->lvd.lv_stripes;
+ lvm->stripe_size = ll->lvd.lv_stripesize;
+
+ lvs[ll->lvd.lv_number] = lvm;
+ }
+
+ return 1;
+}
+
+static int _fill_maps(struct dm_hash_table *maps, struct volume_group *vg,
+ struct dm_list *pvds)
+{
+ struct disk_list *dl;
+ struct physical_volume *pv;
+ struct lv_map *lvms[MAX_LV], *lvm;
+ struct pe_disk *e;
+ uint32_t i, lv_num, le;
+
+ dm_list_iterate_items(dl, pvds) {
+ if (!(pv = find_pv(vg, dl->dev))) {
+ log_error("PV %s not found.", dl->dev->pvid);
+ return 0;
+ }
+ e = dl->extents;
+
+ /* build an array of lv's for this pv */
+ if (!_fill_lv_array(lvms, maps, dl))
+ return_0;
+
+ for (i = 0; i < dl->pvd.pe_total; i++) {
+ lv_num = e[i].lv_num;
+
+ if (lv_num == UNMAPPED_EXTENT)
+ continue;
+
+ lv_num--;
+ lvm = lvms[lv_num];
+
+ if (!lvm) {
+ log_error("Invalid LV in extent map "
+ "(PV %s, PE %" PRIu32
+ ", LV %" PRIu32
+ ", LE %" PRIu32 ")",
+ dev_name(pv->dev), i,
+ lv_num, e[i].le_num);
+ return 0;
+ }
+
+ le = e[i].le_num;
+
+ if (le >= lvm->lv->le_count) {
+ log_error("logical extent number "
+ "out of bounds");
+ return 0;
+ }
+
+ if (lvm->map[le].pv) {
+ log_error("logical extent (%u) "
+ "already mapped.", le);
+ return 0;
+ }
+
+ lvm->map[le].pv = pv;
+ lvm->map[le].pe = i;
+ }
+ }
+
+ return 1;
+}
+
+static int _check_single_map(struct lv_map *lvm)
+{
+ uint32_t i;
+
+ for (i = 0; i < lvm->lv->le_count; i++) {
+ if (!lvm->map[i].pv) {
+ log_error("Logical volume (%s) contains an incomplete "
+ "mapping table.", lvm->lv->name);
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+static int _check_maps_are_complete(struct dm_hash_table *maps)
+{
+ struct dm_hash_node *n;
+ struct lv_map *lvm;
+
+ for (n = dm_hash_get_first(maps); n; n = dm_hash_get_next(maps, n)) {
+ lvm = (struct lv_map *) dm_hash_get_data(maps, n);
+
+ if (!_check_single_map(lvm))
+ return_0;
+ }
+ return 1;
+}
+
+static uint32_t _area_length(struct lv_map *lvm, uint32_t le)
+{
+ uint32_t len = 0;
+
+ do
+ len++;
+ while ((lvm->map[le + len].pv == lvm->map[le].pv) &&
+ (lvm->map[le].pv &&
+ lvm->map[le + len].pe == lvm->map[le].pe + len));
+
+ return len;
+}
+
+static int _read_linear(struct cmd_context *cmd, struct lv_map *lvm)
+{
+ uint32_t le = 0, len;
+ struct lv_segment *seg;
+ struct segment_type *segtype;
+
+ if (!(segtype = get_segtype_from_string(cmd, SEG_TYPE_NAME_STRIPED)))
+ return_0;
+
+ while (le < lvm->lv->le_count) {
+ len = _area_length(lvm, le);
+
+ if (!(seg = alloc_lv_segment(segtype, lvm->lv, le, len, 0, 0, 0,
+ NULL, 1, len, 0, 0, 0, 0, NULL))) {
+ log_error("Failed to allocate linear segment.");
+ return 0;
+ }
+
+ if (!set_lv_segment_area_pv(seg, 0, lvm->map[le].pv,
+ lvm->map[le].pe))
+ return_0;
+
+ dm_list_add(&lvm->lv->segments, &seg->list);
+
+ le += seg->len;
+ }
+
+ return 1;
+}
+
+static int _check_stripe(struct lv_map *lvm, uint32_t area_count,
+ uint32_t area_len, uint32_t base_le,
+ uint32_t total_area_len)
+{
+ uint32_t st;
+
+ /*
+ * Is the next physical extent in every stripe adjacent to the last?
+ */
+ for (st = 0; st < area_count; st++)
+ if ((lvm->map[base_le + st * total_area_len + area_len].pv !=
+ lvm->map[base_le + st * total_area_len].pv) ||
+ (lvm->map[base_le + st * total_area_len].pv &&
+ lvm->map[base_le + st * total_area_len + area_len].pe !=
+ lvm->map[base_le + st * total_area_len].pe + area_len))
+ return 0;
+
+ return 1;
+}
+
+static int _read_stripes(struct cmd_context *cmd, struct lv_map *lvm)
+{
+ uint32_t st, first_area_le = 0, total_area_len;
+ uint32_t area_len;
+ struct lv_segment *seg;
+ struct segment_type *segtype;
+
+ /*
+ * Work out overall striped length
+ */
+ if (lvm->lv->le_count % lvm->stripes) {
+ log_error("Number of stripes (%u) incompatible "
+ "with logical extent count (%u) for %s",
+ lvm->stripes, lvm->lv->le_count, lvm->lv->name);
+ }
+
+ total_area_len = lvm->lv->le_count / lvm->stripes;
+
+ if (!(segtype = get_segtype_from_string(cmd, SEG_TYPE_NAME_STRIPED)))
+ return_0;
+
+ while (first_area_le < total_area_len) {
+ area_len = 1;
+
+ /*
+ * Find how many extents are contiguous in all stripes
+ * and so can form part of this segment
+ */
+ while (_check_stripe(lvm, lvm->stripes,
+ area_len, first_area_le, total_area_len))
+ area_len++;
+
+ if (!(seg = alloc_lv_segment(segtype, lvm->lv,
+ lvm->stripes * first_area_le,
+ lvm->stripes * area_len, 0,
+ 0, lvm->stripe_size, NULL,
+ lvm->stripes,
+ area_len, 0, 0, 0, 0, NULL))) {
+ log_error("Failed to allocate striped segment.");
+ return 0;
+ }
+
+ /*
+ * Set up start positions of each stripe in this segment
+ */
+ for (st = 0; st < seg->area_count; st++)
+ if (!set_lv_segment_area_pv(seg, st,
+ lvm->map[first_area_le + st * total_area_len].pv,
+ lvm->map[first_area_le + st * total_area_len].pe))
+ return_0;
+
+ dm_list_add(&lvm->lv->segments, &seg->list);
+
+ first_area_le += area_len;
+ }
+
+ return 1;
+}
+
+static int _build_segments(struct cmd_context *cmd, struct lv_map *lvm)
+{
+ return (lvm->stripes > 1 ? _read_stripes(cmd, lvm) :
+ _read_linear(cmd, lvm));
+}
+
+static int _build_all_segments(struct cmd_context *cmd, struct dm_hash_table *maps)
+{
+ struct dm_hash_node *n;
+ struct lv_map *lvm;
+
+ for (n = dm_hash_get_first(maps); n; n = dm_hash_get_next(maps, n)) {
+ lvm = (struct lv_map *) dm_hash_get_data(maps, n);
+ if (!_build_segments(cmd, lvm))
+ return_0;
+ }
+
+ return 1;
+}
+
+int import_extents(struct cmd_context *cmd, struct volume_group *vg,
+ struct dm_list *pvds)
+{
+ int r = 0;
+ struct dm_pool *scratch = dm_pool_create("lvm1 import_extents", 10 * 1024);
+ struct dm_hash_table *maps;
+
+ if (!scratch)
+ return_0;
+
+ if (!(maps = _create_lv_maps(scratch, vg))) {
+ log_error("Couldn't allocate logical volume maps.");
+ goto out;
+ }
+
+ if (!_fill_maps(maps, vg, pvds)) {
+ log_error("Couldn't fill logical volume maps.");
+ goto out;
+ }
+
+ if (!_check_maps_are_complete(maps) && !(vg->status & PARTIAL_VG))
+ goto_out;
+
+ if (!_build_all_segments(cmd, maps)) {
+ log_error("Couldn't build extent segments.");
+ goto out;
+ }
+ r = 1;
+
+ out:
+ if (maps)
+ dm_hash_destroy(maps);
+ dm_pool_destroy(scratch);
+ return r;
+}
diff --git a/lib/format1/layout.c b/lib/format1/layout.c
new file mode 100644
index 0000000..380a983
--- /dev/null
+++ b/lib/format1/layout.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "disk-rep.h"
+
+/*
+ * Only works with powers of 2.
+ */
+static uint32_t _round_up(uint32_t n, uint32_t size)
+{
+ size--;
+ return (n + size) & ~size;
+}
+
+/* Unused.
+static uint32_t _div_up(uint32_t n, uint32_t size)
+{
+ return _round_up(n, size) / size;
+}
+*/
+
+/*
+ * Each chunk of metadata should be aligned to
+ * METADATA_ALIGN.
+ */
+static uint32_t _next_base(struct data_area *area)
+{
+ return _round_up(area->base + area->size, METADATA_ALIGN);
+}
+
+/*
+ * Quick calculation based on pe_start.
+ */
+static int _adjust_pe_on_disk(struct pv_disk *pvd)
+{
+ uint32_t pe_start = pvd->pe_start << SECTOR_SHIFT;
+
+ if (pe_start < pvd->pe_on_disk.base + pvd->pe_on_disk.size)
+ return 0;
+
+ pvd->pe_on_disk.size = pe_start - pvd->pe_on_disk.base;
+ return 1;
+}
+
+static void _calc_simple_layout(struct pv_disk *pvd)
+{
+ pvd->pv_on_disk.base = METADATA_BASE;
+ pvd->pv_on_disk.size = PV_SIZE;
+
+ pvd->vg_on_disk.base = _next_base(&pvd->pv_on_disk);
+ pvd->vg_on_disk.size = VG_SIZE;
+
+ pvd->pv_uuidlist_on_disk.base = _next_base(&pvd->vg_on_disk);
+ pvd->pv_uuidlist_on_disk.size = MAX_PV * NAME_LEN;
+
+ pvd->lv_on_disk.base = _next_base(&pvd->pv_uuidlist_on_disk);
+ pvd->lv_on_disk.size = MAX_LV * sizeof(struct lv_disk);
+
+ pvd->pe_on_disk.base = _next_base(&pvd->lv_on_disk);
+ pvd->pe_on_disk.size = pvd->pe_total * sizeof(struct pe_disk);
+}
+
+static int _check_vg_limits(struct disk_list *dl)
+{
+ if (dl->vgd.lv_max > MAX_LV) {
+ log_error("MaxLogicalVolumes of %d exceeds format limit of %d "
+ "for VG '%s'", dl->vgd.lv_max, MAX_LV - 1,
+ dl->pvd.vg_name);
+ return 0;
+ }
+
+ if (dl->vgd.pv_max > MAX_PV) {
+ log_error("MaxPhysicalVolumes of %d exceeds format limit of %d "
+ "for VG '%s'", dl->vgd.pv_max, MAX_PV - 1,
+ dl->pvd.vg_name);
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * This assumes pe_count and pe_start have already
+ * been calculated correctly.
+ */
+int calculate_layout(struct disk_list *dl)
+{
+ struct pv_disk *pvd = &dl->pvd;
+
+ _calc_simple_layout(pvd);
+ if (!_adjust_pe_on_disk(pvd)) {
+ log_error("Insufficient space for metadata and PE's.");
+ return 0;
+ }
+
+ if (!_check_vg_limits(dl))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * The number of extents that can fit on a disk is metadata format dependant.
+ * pe_start is any existing value for pe_start
+ */
+int calculate_extent_count(struct physical_volume *pv, uint32_t extent_size,
+ uint32_t max_extent_count, uint64_t pe_start)
+{
+ struct pv_disk *pvd = dm_malloc(sizeof(*pvd));
+ uint32_t end;
+
+ if (!pvd)
+ return_0;
+
+ /*
+ * Guess how many extents will fit, bearing in mind that
+ * one is going to be knocked off at the start of the
+ * next loop.
+ */
+ if (max_extent_count)
+ pvd->pe_total = max_extent_count + 1;
+ else
+ pvd->pe_total = (pv->size / extent_size);
+
+ if (pvd->pe_total < PE_SIZE_PV_SIZE_REL) {
+ log_error("Too few extents on %s. Try smaller extent size.",
+ pv_dev_name(pv));
+ dm_free(pvd);
+ return 0;
+ }
+
+ do {
+ pvd->pe_total--;
+ _calc_simple_layout(pvd);
+ end = ((pvd->pe_on_disk.base + pvd->pe_on_disk.size +
+ SECTOR_SIZE - 1) >> SECTOR_SHIFT);
+
+ if (pe_start && end < pe_start)
+ end = pe_start;
+
+ pvd->pe_start = _round_up(end, LVM1_PE_ALIGN);
+
+ } while ((pvd->pe_start + ((uint64_t)pvd->pe_total * extent_size))
+ > pv->size);
+
+ if (pvd->pe_total > MAX_PE_TOTAL) {
+ log_error("Metadata extent limit (%u) exceeded for %s - "
+ "%u required", MAX_PE_TOTAL, pv_dev_name(pv),
+ pvd->pe_total);
+ dm_free(pvd);
+ return 0;
+ }
+
+ pv->pe_count = pvd->pe_total;
+ pv->pe_start = pvd->pe_start;
+ /* We can't set pe_size here without breaking LVM1 compatibility */
+ dm_free(pvd);
+ return 1;
+}
diff --git a/lib/format1/lvm1-label.c b/lib/format1/lvm1-label.c
new file mode 100644
index 0000000..691a05a
--- /dev/null
+++ b/lib/format1/lvm1-label.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "lvm1-label.h"
+#include "disk-rep.h"
+#include "label.h"
+#include "metadata.h"
+#include "xlate.h"
+#include "format1.h"
+
+#include <sys/stat.h>
+#include <fcntl.h>
+
+static void _not_supported(const char *op)
+{
+ log_error("The '%s' operation is not supported for the lvm1 labeller.",
+ op);
+}
+
+static int _lvm1_can_handle(struct labeller *l __attribute__((unused)), void *buf, uint64_t sector)
+{
+ struct pv_disk *pvd = (struct pv_disk *) buf;
+ uint32_t version;
+
+ /* LVM1 label must always be in first sector */
+ if (sector)
+ return 0;
+
+ version = xlate16(pvd->version);
+
+ if (pvd->id[0] == 'H' && pvd->id[1] == 'M' &&
+ (version == 1 || version == 2))
+ return 1;
+
+ return 0;
+}
+
+static int _lvm1_write(struct label *label __attribute__((unused)), void *buf __attribute__((unused)))
+{
+ _not_supported("write");
+ return 0;
+}
+
+static int _lvm1_read(struct labeller *l, struct device *dev, void *buf,
+ struct label **label)
+{
+ struct pv_disk *pvd = (struct pv_disk *) buf;
+ struct vg_disk vgd;
+ struct lvmcache_info *info;
+ const char *vgid = FMT_LVM1_ORPHAN_VG_NAME;
+ const char *vgname = FMT_LVM1_ORPHAN_VG_NAME;
+ unsigned exported = 0;
+
+ munge_pvd(dev, pvd);
+
+ if (*pvd->vg_name) {
+ if (!read_vgd(dev, &vgd, pvd))
+ return_0;
+ vgid = (char *) vgd.vg_uuid;
+ vgname = (char *) pvd->vg_name;
+ exported = pvd->pv_status & VG_EXPORTED;
+ }
+
+ if (!(info = lvmcache_add(l, (char *)pvd->pv_uuid, dev, vgname, vgid,
+ exported)))
+ return_0;
+ *label = lvmcache_get_label(info);
+
+ lvmcache_set_device_size(info, ((uint64_t)xlate32(pvd->pv_size)) << SECTOR_SHIFT);
+ lvmcache_set_ext_version(info, 0);
+ lvmcache_set_ext_flags(info, 0);
+ lvmcache_del_mdas(info);
+ lvmcache_del_bas(info);
+
+ return 1;
+}
+
+static int _lvm1_initialise_label(struct labeller *l __attribute__((unused)), struct label *label)
+{
+ strcpy(label->type, "LVM1");
+
+ return 1;
+}
+
+static void _lvm1_destroy_label(struct labeller *l __attribute__((unused)), struct label *label __attribute__((unused)))
+{
+}
+
+static void _lvm1_destroy(struct labeller *l)
+{
+ dm_free(l);
+}
+
+struct label_ops _lvm1_ops = {
+ .can_handle = _lvm1_can_handle,
+ .write = _lvm1_write,
+ .read = _lvm1_read,
+ .initialise_label = _lvm1_initialise_label,
+ .destroy_label = _lvm1_destroy_label,
+ .destroy = _lvm1_destroy,
+};
+
+struct labeller *lvm1_labeller_create(struct format_type *fmt)
+{
+ struct labeller *l;
+
+ if (!(l = dm_malloc(sizeof(*l)))) {
+ log_error("Couldn't allocate labeller object.");
+ return NULL;
+ }
+
+ l->ops = &_lvm1_ops;
+ l->fmt = fmt;
+
+ return l;
+}
diff --git a/lib/format1/lvm1-label.h b/lib/format1/lvm1-label.h
new file mode 100644
index 0000000..27f2f51
--- /dev/null
+++ b/lib/format1/lvm1-label.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _LVM_LVM1_LABEL_H
+#define _LVM_LVM1_LABEL_H
+
+#include "metadata.h"
+
+struct labeller *lvm1_labeller_create(struct format_type *fmt);
+
+#endif
diff --git a/lib/format1/vg_number.c b/lib/format1/vg_number.c
new file mode 100644
index 0000000..8b1a803
--- /dev/null
+++ b/lib/format1/vg_number.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "disk-rep.h"
+
+/*
+ * FIXME: Quick hack. We can use caching to
+ * prevent a total re-read, even so vg_number
+ * causes the tools to check *every* pv. Yuck.
+ * Put in separate file so it wouldn't contaminate
+ * other code.
+ */
+int get_free_vg_number(struct format_instance *fid, struct dev_filter *filter,
+ const char *candidate_vg, int *result)
+{
+ struct dm_list all_pvs;
+ struct disk_list *dl;
+ struct dm_pool *mem = dm_pool_create("lvm1 vg_number", 10 * 1024);
+ int i, r = 0, numbers[MAX_VG] = { 0 };
+
+ dm_list_init(&all_pvs);
+
+ if (!mem)
+ return_0;
+
+ if (!read_pvs_in_vg(fid->fmt, NULL, filter, mem, &all_pvs))
+ goto_out;
+
+ dm_list_iterate_items(dl, &all_pvs) {
+ if (!*dl->pvd.vg_name || !strcmp((char *)dl->pvd.vg_name, candidate_vg))
+ continue;
+
+ numbers[dl->vgd.vg_number] = 1;
+ }
+
+ for (i = 0; i < MAX_VG; i++) {
+ if (!numbers[i]) {
+ r = 1;
+ *result = i;
+ break;
+ }
+ }
+
+ out:
+ dm_pool_destroy(mem);
+ return r;
+}
diff --git a/lib/format_pool/.exported_symbols b/lib/format_pool/.exported_symbols
new file mode 100644
index 0000000..e9fac2e
--- /dev/null
+++ b/lib/format_pool/.exported_symbols
@@ -0,0 +1 @@
+init_format
diff --git a/lib/format_pool/Makefile.in b/lib/format_pool/Makefile.in
new file mode 100644
index 0000000..05d1b0c
--- /dev/null
+++ b/lib/format_pool/Makefile.in
@@ -0,0 +1,30 @@
+#
+# Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
+# Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
+#
+# This file is part of LVM2.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = @top_builddir@
+
+SOURCES =\
+ disk_rep.c \
+ format_pool.c \
+ import_export.c \
+ pool_label.c
+
+LIB_SHARED = liblvm2formatpool.$(LIB_SUFFIX)
+LIB_VERSION = $(LIB_VERSION_LVM)
+
+include $(top_builddir)/make.tmpl
+
+install: install_lvm2_plugin
diff --git a/lib/format_pool/disk_rep.c b/lib/format_pool/disk_rep.c
new file mode 100644
index 0000000..fe9b03e
--- /dev/null
+++ b/lib/format_pool/disk_rep.c
@@ -0,0 +1,409 @@
+/*
+ * Copyright (C) 1997-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "label.h"
+#include "metadata.h"
+#include "lvmcache.h"
+#include "xlate.h"
+#include "disk_rep.h"
+#include "toolcontext.h"
+
+#include <assert.h>
+
+/* FIXME: memcpy might not be portable */
+#define CPIN_8(x, y, z) {memcpy((x), (y), (z));}
+#define CPOUT_8(x, y, z) {memcpy((y), (x), (z));}
+#define CPIN_16(x, y) {(x) = xlate16_be((y));}
+#define CPOUT_16(x, y) {(y) = xlate16_be((x));}
+#define CPIN_32(x, y) {(x) = xlate32_be((y));}
+#define CPOUT_32(x, y) {(y) = xlate32_be((x));}
+#define CPIN_64(x, y) {(x) = xlate64_be((y));}
+#define CPOUT_64(x, y) {(y) = xlate64_be((x));}
+
+static int __read_pool_disk(const struct format_type *fmt, struct device *dev,
+ struct dm_pool *mem __attribute__((unused)), struct pool_list *pl,
+ const char *vg_name __attribute__((unused)))
+{
+ char buf[512] __attribute__((aligned(8)));
+
+ /* FIXME: Need to check the cache here first */
+ if (!dev_read(dev, UINT64_C(0), 512, DEV_IO_POOL, buf)) {
+ log_very_verbose("Failed to read PV data from %s",
+ dev_name(dev));
+ return 0;
+ }
+
+ if (!read_pool_label(pl, fmt->labeller, dev, buf, NULL))
+ return_0;
+
+ return 1;
+}
+
+static void _add_pl_to_list(struct cmd_context *cmd, struct dm_list *head, struct pool_list *data)
+{
+ struct pool_list *pl;
+
+ dm_list_iterate_items(pl, head) {
+ if (id_equal(&data->pv_uuid, &pl->pv_uuid)) {
+ char uuid[ID_LEN + 7] __attribute__((aligned(8)));
+
+ if (!id_write_format(&pl->pv_uuid, uuid, ID_LEN + 7))
+ stack;
+
+ if (!dev_subsystem_part_major(cmd->dev_types, data->dev)) {
+ log_very_verbose("Ignoring duplicate PV %s on "
+ "%s", uuid,
+ dev_name(data->dev));
+ return;
+ }
+ log_very_verbose("Duplicate PV %s - using %s %s",
+ uuid, dev_subsystem_name(cmd->dev_types, data->dev),
+ dev_name(data->dev));
+ dm_list_del(&pl->list);
+ break;
+ }
+ }
+ dm_list_add(head, &data->list);
+}
+
+int read_pool_label(struct pool_list *pl, struct labeller *l,
+ struct device *dev, char *buf, struct label **label)
+{
+ struct lvmcache_info *info;
+ struct id pvid;
+ struct id vgid;
+ char uuid[ID_LEN + 7] __attribute__((aligned(8)));
+ struct pool_disk *pd = &pl->pd;
+
+ pool_label_in(pd, buf);
+
+ get_pool_pv_uuid(&pvid, pd);
+ if (!id_write_format(&pvid, uuid, ID_LEN + 7))
+ stack;
+ log_debug_metadata("Calculated uuid %s for %s", uuid, dev_name(dev));
+
+ get_pool_vg_uuid(&vgid, pd);
+ if (!id_write_format(&vgid, uuid, ID_LEN + 7))
+ stack;
+ log_debug_metadata("Calculated uuid %s for %s", uuid, pd->pl_pool_name);
+
+ if (!(info = lvmcache_add(l, (char *) &pvid, dev, pd->pl_pool_name,
+ (char *) &vgid, 0)))
+ return_0;
+ if (label)
+ *label = lvmcache_get_label(info);
+
+ lvmcache_set_device_size(info, ((uint64_t)xlate32_be(pd->pl_blocks)) << SECTOR_SHIFT);
+ lvmcache_set_ext_version(info, 0);
+ lvmcache_set_ext_flags(info, 0);
+ lvmcache_del_mdas(info);
+ lvmcache_del_bas(info);
+
+ pl->dev = dev;
+ pl->pv = NULL;
+ memcpy(&pl->pv_uuid, &pvid, sizeof(pvid));
+
+ return 1;
+}
+
+/**
+ * pool_label_out - copies a pool_label_t into a char buffer
+ * @pl: ptr to a pool_label_t struct
+ * @buf: ptr to raw space where label info will be copied
+ *
+ * This function is important because it takes care of all of
+ * the endian issues when copying to disk. This way, when
+ * machines of different architectures are used, they will
+ * be able to interpret ondisk labels correctly. Always use
+ * this function before writing to disk.
+ */
+void pool_label_out(struct pool_disk *pl, void *buf)
+{
+ struct pool_disk *bufpl = (struct pool_disk *) buf;
+
+ CPOUT_64(pl->pl_magic, bufpl->pl_magic);
+ CPOUT_64(pl->pl_pool_id, bufpl->pl_pool_id);
+ CPOUT_8(pl->pl_pool_name, bufpl->pl_pool_name, POOL_NAME_SIZE);
+ CPOUT_32(pl->pl_version, bufpl->pl_version);
+ CPOUT_32(pl->pl_subpools, bufpl->pl_subpools);
+ CPOUT_32(pl->pl_sp_id, bufpl->pl_sp_id);
+ CPOUT_32(pl->pl_sp_devs, bufpl->pl_sp_devs);
+ CPOUT_32(pl->pl_sp_devid, bufpl->pl_sp_devid);
+ CPOUT_32(pl->pl_sp_type, bufpl->pl_sp_type);
+ CPOUT_64(pl->pl_blocks, bufpl->pl_blocks);
+ CPOUT_32(pl->pl_striping, bufpl->pl_striping);
+ CPOUT_32(pl->pl_sp_dmepdevs, bufpl->pl_sp_dmepdevs);
+ CPOUT_32(pl->pl_sp_dmepid, bufpl->pl_sp_dmepid);
+ CPOUT_32(pl->pl_sp_weight, bufpl->pl_sp_weight);
+ CPOUT_32(pl->pl_minor, bufpl->pl_minor);
+ CPOUT_32(pl->pl_padding, bufpl->pl_padding);
+ CPOUT_8(pl->pl_reserve, bufpl->pl_reserve, 184);
+}
+
+/**
+ * pool_label_in - copies a char buffer into a pool_label_t
+ * @pl: ptr to a pool_label_t struct
+ * @buf: ptr to raw space where label info is copied from
+ *
+ * This function is important because it takes care of all of
+ * the endian issues when information from disk is about to be
+ * used. This way, when machines of different architectures
+ * are used, they will be able to interpret ondisk labels
+ * correctly. Always use this function before using labels that
+ * were read from disk.
+ */
+void pool_label_in(struct pool_disk *pl, void *buf)
+{
+ struct pool_disk *bufpl = (struct pool_disk *) buf;
+
+ CPIN_64(pl->pl_magic, bufpl->pl_magic);
+ CPIN_64(pl->pl_pool_id, bufpl->pl_pool_id);
+ CPIN_8(pl->pl_pool_name, bufpl->pl_pool_name, POOL_NAME_SIZE);
+ CPIN_32(pl->pl_version, bufpl->pl_version);
+ CPIN_32(pl->pl_subpools, bufpl->pl_subpools);
+ CPIN_32(pl->pl_sp_id, bufpl->pl_sp_id);
+ CPIN_32(pl->pl_sp_devs, bufpl->pl_sp_devs);
+ CPIN_32(pl->pl_sp_devid, bufpl->pl_sp_devid);
+ CPIN_32(pl->pl_sp_type, bufpl->pl_sp_type);
+ CPIN_64(pl->pl_blocks, bufpl->pl_blocks);
+ CPIN_32(pl->pl_striping, bufpl->pl_striping);
+ CPIN_32(pl->pl_sp_dmepdevs, bufpl->pl_sp_dmepdevs);
+ CPIN_32(pl->pl_sp_dmepid, bufpl->pl_sp_dmepid);
+ CPIN_32(pl->pl_sp_weight, bufpl->pl_sp_weight);
+ CPIN_32(pl->pl_minor, bufpl->pl_minor);
+ CPIN_32(pl->pl_padding, bufpl->pl_padding);
+ CPIN_8(pl->pl_reserve, bufpl->pl_reserve, 184);
+}
+
+static char _calc_char(unsigned int id)
+{
+ /*
+ * [0-9A-Za-z!#] - 64 printable chars (6-bits)
+ */
+
+ if (id < 10)
+ return id + 48;
+ if (id < 36)
+ return (id - 10) + 65;
+ if (id < 62)
+ return (id - 36) + 97;
+ if (id == 62)
+ return '!';
+ if (id == 63)
+ return '#';
+
+ return '%';
+}
+
+void get_pool_uuid(char *uuid, uint64_t poolid, uint32_t spid, uint32_t devid)
+{
+ int i;
+ unsigned shifter = 0x003F;
+
+ assert(ID_LEN == 32);
+ memset(uuid, 0, ID_LEN);
+ strcat(uuid, "POOL0000000000");
+
+ /* We grab the entire 64 bits (+2 that get shifted in) */
+ for (i = 13; i < 24; i++) {
+ uuid[i] = _calc_char(((unsigned) poolid) & shifter);
+ poolid = poolid >> 6;
+ }
+
+ /* We grab the entire 32 bits (+4 that get shifted in) */
+ for (i = 24; i < 30; i++) {
+ uuid[i] = _calc_char((unsigned) (spid & shifter));
+ spid = spid >> 6;
+ }
+
+ /*
+ * Since we can only have 128 devices, we only worry about the
+ * last 12 bits
+ */
+ for (i = 30; i < 32; i++) {
+ uuid[i] = _calc_char((unsigned) (devid & shifter));
+ devid = devid >> 6;
+ }
+
+}
+
+struct _read_pool_pv_baton {
+ const struct format_type *fmt;
+ struct dm_pool *mem, *tmpmem;
+ struct pool_list *pl;
+ struct dm_list *head;
+ const char *vgname;
+ uint32_t *sp_devs;
+ uint32_t sp_count;
+ int failed;
+ int empty;
+};
+
+static int _read_pool_pv(struct lvmcache_info *info, void *baton)
+{
+ struct _read_pool_pv_baton *b = baton;
+
+ b->empty = 0;
+
+ if (lvmcache_device(info) &&
+ !(b->pl = read_pool_disk(b->fmt, lvmcache_device(info), b->mem, b->vgname)))
+ return 0;
+
+ /*
+ * We need to keep track of the total expected number
+ * of devices per subpool
+ */
+ if (!b->sp_count) {
+ /* FIXME pl left uninitialised if !info->dev */
+ if (!b->pl) {
+ log_error(INTERNAL_ERROR "device is missing");
+ dm_pool_destroy(b->tmpmem);
+ b->failed = 1;
+ return 0;
+ }
+ b->sp_count = b->pl->pd.pl_subpools;
+ if (!(b->sp_devs =
+ dm_pool_zalloc(b->tmpmem,
+ sizeof(uint32_t) * b->sp_count))) {
+ log_error("Unable to allocate %d 32-bit uints",
+ b->sp_count);
+ dm_pool_destroy(b->tmpmem);
+ b->failed = 1;
+ return 0;
+ }
+ }
+
+ /*
+ * watch out for a pool label with a different subpool
+ * count than the original - give up if it does
+ */
+ if (b->sp_count != b->pl->pd.pl_subpools)
+ return 0;
+
+ _add_pl_to_list(lvmcache_fmt(info)->cmd, b->head, b->pl);
+
+ if (b->sp_count > b->pl->pd.pl_sp_id && b->sp_devs[b->pl->pd.pl_sp_id] == 0)
+ b->sp_devs[b->pl->pd.pl_sp_id] = b->pl->pd.pl_sp_devs;
+
+ return 1;
+}
+
+static int _read_vg_pds(struct _read_pool_pv_baton *b,
+ struct lvmcache_vginfo *vginfo,
+ uint32_t *devcount)
+{
+ uint32_t i;
+
+ b->sp_count = 0;
+ b->sp_devs = NULL;
+ b->failed = 0;
+ b->pl = NULL;
+
+ /* FIXME: maybe should return a different error in memory
+ * allocation failure */
+ if (!(b->tmpmem = dm_pool_create("pool read_vg", 512)))
+ return_0;
+
+ lvmcache_foreach_pv(vginfo, _read_pool_pv, b);
+
+ *devcount = 0;
+ for (i = 0; i < b->sp_count; i++)
+ *devcount += b->sp_devs[i];
+
+ dm_pool_destroy(b->tmpmem);
+
+ if (b->pl && *b->pl->pd.pl_pool_name)
+ return 1;
+
+ return 0;
+
+}
+
+int read_pool_pds(const struct format_type *fmt, const char *vg_name,
+ struct dm_pool *mem, struct dm_list *pdhead)
+{
+ struct lvmcache_vginfo *vginfo;
+ uint32_t totaldevs;
+ int full_scan = -1;
+
+ struct _read_pool_pv_baton baton;
+
+ baton.vgname = vg_name;
+ baton.mem = mem;
+ baton.fmt = fmt;
+ baton.head = pdhead;
+ baton.empty = 1;
+
+ do {
+ /*
+ * If the cache scanning doesn't work, this will never work
+ */
+ if (vg_name && (vginfo = lvmcache_vginfo_from_vgname(vg_name, NULL)) &&
+ _read_vg_pds(&baton, vginfo, &totaldevs) && !baton.empty)
+ {
+ /*
+ * If we found all the devices we were expecting, return
+ * success
+ */
+ if (dm_list_size(pdhead) == totaldevs)
+ return 1;
+
+ /*
+ * accept partial pool if we've done a full rescan of
+ * the cache
+ */
+ if (full_scan > 0)
+ return 1;
+ }
+
+ /* Failed */
+ dm_list_init(pdhead);
+
+ full_scan++;
+ if (full_scan > 1) {
+ log_debug_metadata("No devices for vg %s found in cache",
+ vg_name);
+ return 0;
+ }
+ lvmcache_label_scan(fmt->cmd);
+
+ } while (1);
+
+}
+
+struct pool_list *read_pool_disk(const struct format_type *fmt,
+ struct device *dev, struct dm_pool *mem,
+ const char *vg_name)
+{
+ struct pool_list *pl;
+
+ if (!dev_open_readonly(dev))
+ return_NULL;
+
+ if (!(pl = dm_pool_zalloc(mem, sizeof(*pl)))) {
+ log_error("Unable to allocate pool list structure");
+ return 0;
+ }
+
+ if (!__read_pool_disk(fmt, dev, mem, pl, vg_name))
+ return_NULL;
+
+ if (!dev_close(dev))
+ stack;
+
+ return pl;
+
+}
diff --git a/lib/format_pool/disk_rep.h b/lib/format_pool/disk_rep.h
new file mode 100644
index 0000000..37e942e
--- /dev/null
+++ b/lib/format_pool/disk_rep.h
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 1997-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef DISK_REP_FORMAT_POOL_H
+#define DISK_REP_FORMAT_POOL_H
+
+#include "label.h"
+#include "metadata.h"
+
+#define MINOR_OFFSET 65536
+
+/* From NSP.cf */
+#define NSPMajorVersion 4
+#define NSPMinorVersion 1
+#define NSPUpdateLevel 3
+
+/* From pool_std.h */
+#define POOL_NAME_SIZE (256)
+#define POOL_MAGIC 0x011670
+#define POOL_MAJOR (121)
+#define POOL_MAX_DEVICES 128
+
+/* When checking for version matching, the first two numbers **
+** are important for metadata formats, a.k.a pool labels. **
+** All the numbers are important when checking if the user **
+** space tools match up with the kernel module............. */
+#define POOL_VERSION (NSPMajorVersion << 16 | \
+ NSPMinorVersion << 8 | \
+ NSPUpdateLevel)
+
+/* Pool label is at the head of every pool disk partition */
+#define SIZEOF_POOL_LABEL (8192)
+
+/* in sectors */
+#define POOL_PE_SIZE (SIZEOF_POOL_LABEL >> SECTOR_SHIFT)
+#define POOL_PE_START (SIZEOF_POOL_LABEL >> SECTOR_SHIFT)
+
+/* Helper fxns */
+#define get_pool_vg_uuid(id, pd) do { get_pool_uuid((char *)(id), \
+ (pd)->pl_pool_id, 0, 0); \
+ } while(0)
+#define get_pool_pv_uuid(id, pd) do { get_pool_uuid((char *)(id), \
+ (pd)->pl_pool_id, \
+ (pd)->pl_sp_id, \
+ (pd)->pl_sp_devid); \
+ } while(0)
+#define get_pool_lv_uuid(id, pd) do { get_pool_uuid((char *)&(id)[0], \
+ (pd)->pl_pool_id, 0, 0); \
+ get_pool_uuid((char*)&(id)[1], \
+ (pd)->pl_pool_id, 0, 0); \
+ } while(0)
+
+struct pool_disk;
+struct pool_list;
+struct user_subpool;
+struct user_device;
+
+struct pool_disk {
+ uint64_t pl_magic; /* Pool magic number */
+ uint64_t pl_pool_id; /* Unique pool identifier */
+ char pl_pool_name[POOL_NAME_SIZE]; /* Name of pool */
+ uint32_t pl_version; /* Pool version */
+ uint32_t pl_subpools; /* Number of subpools in this pool */
+ uint32_t pl_sp_id; /* Subpool number within pool */
+ uint32_t pl_sp_devs; /* Number of data partitions in this subpool */
+ uint32_t pl_sp_devid; /* Partition number within subpool */
+ uint32_t pl_sp_type; /* Partition type */
+ uint64_t pl_blocks; /* Number of blocks in this partition */
+ uint32_t pl_striping; /* Striping size within subpool */
+ /*
+ * If the number of DMEP devices is zero, then the next field **
+ * ** (pl_sp_dmepid) becomes the subpool ID for redirection. In **
+ * ** other words, if this subpool does not have the capability **
+ * ** to do DMEP, then it must specify which subpool will do it **
+ * ** in it's place
+ */
+
+ /*
+ * While the next 3 field are no longer used, they must stay to keep **
+ * ** backward compatibility...........................................
+ */
+ uint32_t pl_sp_dmepdevs;/* Number of dmep devices in this subpool */
+ uint32_t pl_sp_dmepid; /* Dmep device number within subpool */
+ uint32_t pl_sp_weight; /* if dmep dev, pref to using it */
+
+ uint32_t pl_minor; /* the pool minor number */
+ uint32_t pl_padding; /* reminder - think about alignment */
+
+ /*
+ * Even though we're zeroing out 8k at the front of the disk before
+ * writing the label, putting this in
+ */
+ char pl_reserve[184]; /* bump the structure size out to 512 bytes */
+};
+
+struct pool_list {
+ struct dm_list list;
+ struct pool_disk pd;
+ struct physical_volume *pv;
+ struct id pv_uuid;
+ struct device *dev;
+};
+
+struct user_subpool {
+ uint32_t initialized;
+ uint32_t id;
+ uint32_t striping;
+ uint32_t num_devs;
+ uint32_t type;
+ uint32_t dummy;
+ struct user_device *devs;
+};
+
+struct user_device {
+ uint32_t initialized;
+ uint32_t sp_id;
+ uint32_t devid;
+ uint32_t dummy;
+ uint64_t blocks;
+ struct physical_volume *pv;
+};
+
+int read_pool_label(struct pool_list *pl, struct labeller *l,
+ struct device *dev, char *buf, struct label **label);
+void pool_label_out(struct pool_disk *pl, void *buf);
+void pool_label_in(struct pool_disk *pl, void *buf);
+void get_pool_uuid(char *uuid, uint64_t poolid, uint32_t spid, uint32_t devid);
+int import_pool_vg(struct volume_group *vg, struct dm_pool *mem, struct dm_list *pls);
+int import_pool_lvs(struct volume_group *vg, struct dm_pool *mem,
+ struct dm_list *pls);
+int import_pool_pvs(const struct format_type *fmt, struct volume_group *vg,
+ struct dm_pool *mem, struct dm_list *pls);
+int import_pool_pv(const struct format_type *fmt, struct dm_pool *mem,
+ struct volume_group *vg, struct physical_volume *pv,
+ struct pool_list *pl);
+int import_pool_segments(struct dm_list *lvs, struct dm_pool *mem,
+ struct user_subpool *usp, int sp_count);
+int read_pool_pds(const struct format_type *fmt, const char *vgname,
+ struct dm_pool *mem, struct dm_list *head);
+struct pool_list *read_pool_disk(const struct format_type *fmt,
+ struct device *dev, struct dm_pool *mem,
+ const char *vg_name);
+
+#endif /* DISK_REP_POOL_FORMAT_H */
diff --git a/lib/format_pool/format_pool.c b/lib/format_pool/format_pool.c
new file mode 100644
index 0000000..f8223a3
--- /dev/null
+++ b/lib/format_pool/format_pool.c
@@ -0,0 +1,337 @@
+/*
+ * Copyright (C) 1997-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2012 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "label.h"
+#include "metadata.h"
+#include "limits.h"
+#include "display.h"
+#include "toolcontext.h"
+#include "lvmcache.h"
+#include "disk_rep.h"
+#include "format_pool.h"
+#include "pool_label.h"
+
+/* Must be called after pvs are imported */
+static struct user_subpool *_build_usp(struct dm_list *pls, struct dm_pool *mem,
+ int *sps)
+{
+ struct pool_list *pl;
+ struct user_subpool *usp = NULL, *cur_sp = NULL;
+ struct user_device *cur_dev = NULL;
+
+ /*
+ * FIXME: Need to do some checks here - I'm tempted to add a
+ * user_pool structure and build the entire thing to check against.
+ */
+ dm_list_iterate_items(pl, pls) {
+ *sps = pl->pd.pl_subpools;
+ if (!usp && (!(usp = dm_pool_zalloc(mem, sizeof(*usp) * (*sps))))) {
+ log_error("Unable to allocate %d subpool structures",
+ *sps);
+ return 0;
+ }
+
+ if (cur_sp != &usp[pl->pd.pl_sp_id]) {
+ cur_sp = &usp[pl->pd.pl_sp_id];
+
+ cur_sp->id = pl->pd.pl_sp_id;
+ cur_sp->striping = pl->pd.pl_striping;
+ cur_sp->num_devs = pl->pd.pl_sp_devs;
+ cur_sp->type = pl->pd.pl_sp_type;
+ cur_sp->initialized = 1;
+ }
+
+ if (!cur_sp->devs &&
+ (!(cur_sp->devs =
+ dm_pool_zalloc(mem,
+ sizeof(*usp->devs) * pl->pd.pl_sp_devs)))) {
+
+ log_error("Unable to allocate %d pool_device "
+ "structures", pl->pd.pl_sp_devs);
+ return 0;
+ }
+
+ cur_dev = &cur_sp->devs[pl->pd.pl_sp_devid];
+ cur_dev->sp_id = cur_sp->id;
+ cur_dev->devid = pl->pd.pl_sp_id;
+ cur_dev->blocks = pl->pd.pl_blocks;
+ cur_dev->pv = pl->pv;
+ cur_dev->initialized = 1;
+ }
+
+ return usp;
+}
+
+static int _check_usp(const char *vgname, struct user_subpool *usp, int sp_count)
+{
+ int i;
+ unsigned j;
+
+ for (i = 0; i < sp_count; i++) {
+ if (!usp[i].initialized) {
+ log_error("Missing subpool %d in pool %s", i, vgname);
+ return 0;
+ }
+ for (j = 0; j < usp[i].num_devs; j++) {
+ if (!usp[i].devs[j].initialized) {
+ log_error("Missing device %u for subpool %d"
+ " in pool %s", j, i, vgname);
+ return 0;
+ }
+
+ }
+ }
+
+ return 1;
+}
+
+static struct volume_group *_pool_vg_read(struct format_instance *fid,
+ const char *vg_name,
+ struct metadata_area *mda __attribute__((unused)),
+ struct cached_vg_fmtdata **vg_fmtdata __attribute__((unused)),
+ unsigned *use_previous_vg __attribute__((unused)))
+{
+ struct volume_group *vg;
+ struct user_subpool *usp;
+ int sp_count;
+ DM_LIST_INIT(pds);
+
+ /* We can safely ignore the mda passed in */
+
+ /* Strip dev_dir if present */
+ if (vg_name)
+ vg_name = strip_dir(vg_name, fid->fmt->cmd->dev_dir);
+
+ /* Set vg_name through read_pool_pds() */
+ if (!(vg = alloc_vg("pool_vg_read", fid->fmt->cmd, NULL)))
+ return_NULL;
+
+ /* Read all the pvs in the vg */
+ if (!read_pool_pds(fid->fmt, vg_name, vg->vgmem, &pds))
+ goto_bad;
+
+ /* Setting pool seqno to 1 because the code always did this,
+ * although we don't think it's needed. */
+ vg->seqno = 1;
+
+ if (!import_pool_vg(vg, vg->vgmem, &pds))
+ goto_bad;
+
+ if (!import_pool_pvs(fid->fmt, vg, vg->vgmem, &pds))
+ goto_bad;
+
+ if (!import_pool_lvs(vg, vg->vgmem, &pds))
+ goto_bad;
+
+ /*
+ * I need an intermediate subpool structure that contains all the
+ * relevant info for this. Then i can iterate through the subpool
+ * structures for checking, and create the segments
+ */
+ if (!(usp = _build_usp(&pds, vg->vgmem, &sp_count)))
+ goto_bad;
+
+ /*
+ * check the subpool structures - we can't handle partial VGs in
+ * the pool format, so this will error out if we're missing PVs
+ */
+ if (!_check_usp(vg->name, usp, sp_count))
+ goto_bad;
+
+ if (!import_pool_segments(&vg->lvs, vg->vgmem, usp, sp_count))
+ goto_bad;
+
+ vg_set_fid(vg, fid);
+
+ return vg;
+
+bad:
+ release_vg(vg);
+
+ return NULL;
+}
+
+static int _pool_pv_initialise(const struct format_type *fmt __attribute__((unused)),
+ struct pv_create_args *pva __attribute__((unused)),
+ struct physical_volume *pv __attribute__((unused)))
+{
+ return 1;
+}
+
+static int _pool_pv_setup(const struct format_type *fmt __attribute__((unused)),
+ struct physical_volume *pv __attribute__((unused)),
+ struct volume_group *vg __attribute__((unused)))
+{
+ return 1;
+}
+
+static int _pool_pv_read(const struct format_type *fmt, const char *pv_name,
+ struct physical_volume *pv,
+ int scan_label_only __attribute__((unused)))
+{
+ struct dm_pool *mem = dm_pool_create("pool pv_read", 1024);
+ struct pool_list *pl;
+ struct device *dev;
+ int r = 0;
+
+ log_very_verbose("Reading physical volume data %s from disk", pv_name);
+
+ if (!mem)
+ return_0;
+
+ if (!(dev = dev_cache_get(pv_name, fmt->cmd->filter)))
+ goto_out;
+
+ /*
+ * I need to read the disk and populate a pv structure here
+ * I'll probably need to abstract some of this later for the
+ * vg_read code
+ */
+ if (!(pl = read_pool_disk(fmt, dev, mem, NULL)))
+ goto_out;
+
+ if (!import_pool_pv(fmt, fmt->cmd->mem, NULL, pv, pl))
+ goto_out;
+
+ pv->fmt = fmt;
+
+ r = 1;
+
+ out:
+ dm_pool_destroy(mem);
+ return r;
+}
+
+/* *INDENT-OFF* */
+static struct metadata_area_ops _metadata_format_pool_ops = {
+ .vg_read = _pool_vg_read,
+};
+/* *INDENT-ON* */
+
+static struct format_instance *_pool_create_instance(const struct format_type *fmt,
+ const struct format_instance_ctx *fic)
+{
+ struct format_instance *fid;
+ struct metadata_area *mda;
+
+ if (!(fid = alloc_fid(fmt, fic)))
+ return_NULL;
+
+ /* Define a NULL metadata area */
+ if (!(mda = dm_pool_zalloc(fid->mem, sizeof(*mda)))) {
+ log_error("Unable to allocate metadata area structure "
+ "for pool format");
+ goto bad;
+ }
+
+ mda->ops = &_metadata_format_pool_ops;
+ mda->metadata_locn = NULL;
+ mda->status = 0;
+ dm_list_add(&fid->metadata_areas_in_use, &mda->list);
+
+ return fid;
+
+bad:
+ dm_pool_destroy(fid->mem);
+ return NULL;
+}
+
+static void _pool_destroy_instance(struct format_instance *fid)
+{
+ if (--fid->ref_count <= 1)
+ dm_pool_destroy(fid->mem);
+}
+
+static void _pool_destroy(struct format_type *fmt)
+{
+ if (fmt->orphan_vg)
+ free_orphan_vg(fmt->orphan_vg);
+
+ dm_free(fmt);
+}
+
+/* *INDENT-OFF* */
+static struct format_handler _format_pool_ops = {
+ .pv_read = _pool_pv_read,
+ .pv_initialise = _pool_pv_initialise,
+ .pv_setup = _pool_pv_setup,
+ .create_instance = _pool_create_instance,
+ .destroy_instance = _pool_destroy_instance,
+ .destroy = _pool_destroy,
+};
+/* *INDENT-ON */
+
+#ifdef POOL_INTERNAL
+struct format_type *init_pool_format(struct cmd_context *cmd)
+#else /* Shared */
+struct format_type *init_format(struct cmd_context *cmd);
+struct format_type *init_format(struct cmd_context *cmd)
+#endif
+{
+ struct format_type *fmt = dm_malloc(sizeof(*fmt));
+ struct format_instance_ctx fic;
+ struct format_instance *fid;
+
+ if (!fmt) {
+ log_error("Unable to allocate format type structure for pool "
+ "format");
+ return NULL;
+ }
+
+ fmt->cmd = cmd;
+ fmt->ops = &_format_pool_ops;
+ fmt->name = FMT_POOL_NAME;
+ fmt->alias = NULL;
+ fmt->orphan_vg_name = FMT_POOL_ORPHAN_VG_NAME;
+ fmt->features = FMT_OBSOLETE;
+ fmt->private = NULL;
+
+ dm_list_init(&fmt->mda_ops);
+
+ if (!(fmt->labeller = pool_labeller_create(fmt))) {
+ log_error("Couldn't create pool label handler.");
+ dm_free(fmt);
+ return NULL;
+ }
+
+ if (!(label_register_handler(fmt->labeller))) {
+ log_error("Couldn't register pool label handler.");
+ fmt->labeller->ops->destroy(fmt->labeller);
+ dm_free(fmt);
+ return NULL;
+ }
+
+ if (!(fmt->orphan_vg = alloc_vg("pool_orphan", cmd, fmt->orphan_vg_name))) {
+ log_error("Couldn't create pool orphan VG.");
+ dm_free(fmt);
+ return NULL;
+ }
+
+ fic.type = FMT_INSTANCE_AUX_MDAS;
+ fic.context.vg_ref.vg_name = fmt->orphan_vg_name;
+ fic.context.vg_ref.vg_id = NULL;
+
+ if (!(fid = _pool_create_instance(fmt, &fic))) {
+ _pool_destroy(fmt);
+ return NULL;
+ }
+
+ vg_set_fid(fmt->orphan_vg, fid);
+
+ log_very_verbose("Initialised format: %s", fmt->name);
+
+ return fmt;
+}
diff --git a/lib/format_pool/format_pool.h b/lib/format_pool/format_pool.h
new file mode 100644
index 0000000..8ad7eb5
--- /dev/null
+++ b/lib/format_pool/format_pool.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _LVM_FORMAT_POOL_H
+#define _LVM_FORMAT_POOL_H
+
+#include "metadata.h"
+
+#define FMT_POOL_NAME "pool"
+#define FMT_POOL_ORPHAN_VG_NAME ORPHAN_VG_NAME(FMT_POOL_NAME)
+
+#ifdef POOL_INTERNAL
+struct format_type *init_pool_format(struct cmd_context *cmd);
+#endif
+
+#endif
diff --git a/lib/format_pool/import_export.c b/lib/format_pool/import_export.c
new file mode 100644
index 0000000..f4097a7
--- /dev/null
+++ b/lib/format_pool/import_export.c
@@ -0,0 +1,285 @@
+/*
+ * Copyright (C) 1997-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2017 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "label.h"
+#include "metadata.h"
+#include "disk_rep.h"
+#include "sptype_names.h"
+#include "lv_alloc.h"
+#include "pv_alloc.h"
+#include "str_list.h"
+#include "display.h"
+#include "segtype.h"
+#include "toolcontext.h"
+
+/* This file contains only imports at the moment... */
+
+int import_pool_vg(struct volume_group *vg, struct dm_pool *mem, struct dm_list *pls)
+{
+ struct pool_list *pl;
+
+ dm_list_iterate_items(pl, pls) {
+ vg->extent_count +=
+ ((pl->pd.pl_blocks) / POOL_PE_SIZE);
+
+ vg->free_count = vg->extent_count;
+
+ if (vg->name)
+ continue;
+
+ vg->name = dm_pool_strdup(mem, pl->pd.pl_pool_name);
+ get_pool_vg_uuid(&vg->id, &pl->pd);
+ vg->extent_size = POOL_PE_SIZE;
+ vg->status |= LVM_READ | LVM_WRITE | CLUSTERED | SHARED;
+ vg->max_lv = 1;
+ vg->max_pv = POOL_MAX_DEVICES;
+ vg->alloc = ALLOC_NORMAL;
+ }
+
+ return 1;
+}
+
+int import_pool_lvs(struct volume_group *vg, struct dm_pool *mem, struct dm_list *pls)
+{
+ struct pool_list *pl;
+ struct logical_volume *lv;
+
+ if (!(lv = alloc_lv(mem)))
+ return_0;
+
+ lv->status = 0;
+ lv->alloc = ALLOC_NORMAL;
+ lv->size = 0;
+ lv->name = NULL;
+ lv->le_count = 0;
+ lv->read_ahead = vg->cmd->default_settings.read_ahead;
+
+ dm_list_iterate_items(pl, pls) {
+ lv->size += pl->pd.pl_blocks;
+
+ if (lv->name)
+ continue;
+
+ if (!(lv->name = dm_pool_strdup(mem, pl->pd.pl_pool_name)))
+ return_0;
+
+ get_pool_lv_uuid(lv->lvid.id, &pl->pd);
+ log_debug_metadata("Calculated lv uuid for lv %s: %s", lv->name,
+ lv->lvid.s);
+
+ lv->status |= VISIBLE_LV | LVM_READ | LVM_WRITE;
+ lv->major = POOL_MAJOR;
+
+ /* for pool a minor of 0 is dynamic */
+ if (pl->pd.pl_minor) {
+ lv->status |= FIXED_MINOR;
+ lv->minor = pl->pd.pl_minor + MINOR_OFFSET;
+ } else {
+ lv->minor = -1;
+ }
+ }
+
+ lv->le_count = lv->size / POOL_PE_SIZE;
+
+ return link_lv_to_vg(vg, lv);
+}
+
+int import_pool_pvs(const struct format_type *fmt, struct volume_group *vg,
+ struct dm_pool *mem, struct dm_list *pls)
+{
+ struct pv_list *pvl;
+ struct pool_list *pl;
+
+ dm_list_iterate_items(pl, pls) {
+ if (!(pvl = dm_pool_zalloc(mem, sizeof(*pvl)))) {
+ log_error("Unable to allocate pv list structure");
+ return 0;
+ }
+ if (!(pvl->pv = dm_pool_zalloc(mem, sizeof(*pvl->pv)))) {
+ log_error("Unable to allocate pv structure");
+ return 0;
+ }
+ if (!import_pool_pv(fmt, mem, vg, pvl->pv, pl)) {
+ return 0;
+ }
+ pl->pv = pvl->pv;
+ pvl->mdas = NULL;
+ pvl->pe_ranges = NULL;
+ add_pvl_to_vgs(vg, pvl);
+ }
+
+ return 1;
+}
+
+int import_pool_pv(const struct format_type *fmt, struct dm_pool *mem,
+ struct volume_group *vg, struct physical_volume *pv,
+ struct pool_list *pl)
+{
+ struct pool_disk *pd = &pl->pd;
+
+ memset(pv, 0, sizeof(*pv));
+
+ get_pool_pv_uuid(&pv->id, pd);
+ pv->fmt = fmt;
+
+ pv->dev = pl->dev;
+ if (!(pv->vg_name = dm_pool_strdup(mem, pd->pl_pool_name))) {
+ log_error("Unable to duplicate vg_name string");
+ return 0;
+ }
+ if (vg != NULL)
+ memcpy(&pv->vgid, &vg->id, sizeof(vg->id));
+ pv->status = 0;
+ pv->size = pd->pl_blocks;
+ pv->pe_size = POOL_PE_SIZE;
+ pv->pe_start = POOL_PE_START;
+ pv->pe_count = pv->size / POOL_PE_SIZE;
+ pv->pe_alloc_count = 0;
+ pv->pe_align = 0;
+
+ dm_list_init(&pv->tags);
+ dm_list_init(&pv->segments);
+
+ if (!alloc_pv_segment_whole_pv(mem, pv))
+ return_0;
+
+ return 1;
+}
+
+static const char *_cvt_sptype(uint32_t sptype)
+{
+ int i;
+ for (i = 0; sptype_names[i].name[0]; i++) {
+ if (sptype == sptype_names[i].label) {
+ break;
+ }
+ }
+ log_debug_metadata("Found sptype %X and converted it to %s",
+ sptype, sptype_names[i].name);
+ return sptype_names[i].name;
+}
+
+static int _add_stripe_seg(struct dm_pool *mem,
+ struct user_subpool *usp, struct logical_volume *lv,
+ uint32_t *le_cur)
+{
+ struct lv_segment *seg;
+ struct segment_type *segtype;
+ unsigned j;
+ uint32_t area_len;
+
+ if (!is_power_of_2(usp->striping)) {
+ log_error("Stripe size must be a power of 2");
+ return 0;
+ }
+
+ area_len = (usp->devs[0].blocks) / POOL_PE_SIZE;
+
+ if (!(segtype = get_segtype_from_string(lv->vg->cmd, SEG_TYPE_NAME_STRIPED)))
+ return_0;
+
+ if (!(seg = alloc_lv_segment(segtype, lv, *le_cur,
+ area_len * usp->num_devs, 0, 0,
+ usp->striping, NULL, usp->num_devs,
+ area_len, 0, 0, 0, 0, NULL))) {
+ log_error("Unable to allocate striped lv_segment structure");
+ return 0;
+ }
+
+ for (j = 0; j < usp->num_devs; j++)
+ if (!set_lv_segment_area_pv(seg, j, usp->devs[j].pv, 0))
+ return_0;
+
+ /* add the subpool type to the segment tag list */
+ if (!str_list_add(mem, &seg->tags, _cvt_sptype(usp->type))) {
+ log_error("Allocation failed for str_list.");
+ return 0;
+ }
+
+ dm_list_add(&lv->segments, &seg->list);
+
+ *le_cur += seg->len;
+
+ return 1;
+}
+
+static int _add_linear_seg(struct dm_pool *mem,
+ struct user_subpool *usp, struct logical_volume *lv,
+ uint32_t *le_cur)
+{
+ struct lv_segment *seg;
+ struct segment_type *segtype;
+ unsigned j;
+ uint32_t area_len;
+
+ if (!(segtype = get_segtype_from_string(lv->vg->cmd, SEG_TYPE_NAME_STRIPED)))
+ return_0;
+
+ for (j = 0; j < usp->num_devs; j++) {
+ area_len = (usp->devs[j].blocks) / POOL_PE_SIZE;
+
+ if (!(seg = alloc_lv_segment(segtype, lv, *le_cur,
+ area_len, 0, 0, usp->striping,
+ NULL, 1, area_len, 0,
+ POOL_PE_SIZE, 0, 0, NULL))) {
+ log_error("Unable to allocate linear lv_segment "
+ "structure");
+ return 0;
+ }
+
+ /* add the subpool type to the segment tag list */
+ if (!str_list_add(mem, &seg->tags, _cvt_sptype(usp->type))) {
+ log_error("Allocation failed for str_list.");
+ return 0;
+ }
+
+ if (!set_lv_segment_area_pv(seg, 0, usp->devs[j].pv, 0))
+ return_0;
+ dm_list_add(&lv->segments, &seg->list);
+
+ *le_cur += seg->len;
+ }
+
+ return 1;
+}
+
+int import_pool_segments(struct dm_list *lvs, struct dm_pool *mem,
+ struct user_subpool *usp, int subpools)
+{
+ struct lv_list *lvl;
+ struct logical_volume *lv;
+ uint32_t le_cur = 0;
+ int i;
+
+ dm_list_iterate_items(lvl, lvs) {
+ lv = lvl->lv;
+
+ if (lv_is_snapshot(lv))
+ continue;
+
+ for (i = 0; i < subpools; i++) {
+ if (usp[i].striping) {
+ if (!_add_stripe_seg(mem, &usp[i], lv, &le_cur))
+ return_0;
+ } else {
+ if (!_add_linear_seg(mem, &usp[i], lv, &le_cur))
+ return_0;
+ }
+ }
+ }
+
+ return 1;
+}
diff --git a/lib/format_pool/pool_label.c b/lib/format_pool/pool_label.c
new file mode 100644
index 0000000..2e30a7b
--- /dev/null
+++ b/lib/format_pool/pool_label.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 1997-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "lib.h"
+#include "label.h"
+#include "metadata.h"
+#include "disk_rep.h"
+#include "pool_label.h"
+
+#include <sys/stat.h>
+#include <fcntl.h>
+
+static void _pool_not_supported(const char *op)
+{
+ log_error("The '%s' operation is not supported for the pool labeller.",
+ op);
+}
+
+static int _pool_can_handle(struct labeller *l __attribute__((unused)), void *buf, uint64_t sector)
+{
+
+ struct pool_disk pd;
+
+ /*
+ * POOL label must always be in first sector
+ */
+ if (sector)
+ return 0;
+
+ pool_label_in(&pd, buf);
+
+ /* can ignore 8 rightmost bits for ondisk format check */
+ if ((pd.pl_magic == POOL_MAGIC) &&
+ (pd.pl_version >> 8 == POOL_VERSION >> 8))
+ return 1;
+
+ return 0;
+}
+
+static int _pool_write(struct label *label __attribute__((unused)), void *buf __attribute__((unused)))
+{
+ _pool_not_supported("write");
+ return 0;
+}
+
+static int _pool_read(struct labeller *l, struct device *dev, void *buf,
+ struct label **label)
+{
+ struct pool_list pl;
+
+ return read_pool_label(&pl, l, dev, buf, label);
+}
+
+static int _pool_initialise_label(struct labeller *l __attribute__((unused)), struct label *label)
+{
+ strcpy(label->type, "POOL");
+
+ return 1;
+}
+
+static void _pool_destroy_label(struct labeller *l __attribute__((unused)), struct label *label __attribute__((unused)))
+{
+}
+
+static void _label_pool_destroy(struct labeller *l)
+{
+ dm_free(l);
+}
+
+struct label_ops _pool_ops = {
+ .can_handle = _pool_can_handle,
+ .write = _pool_write,
+ .read = _pool_read,
+ .initialise_label = _pool_initialise_label,
+ .destroy_label = _pool_destroy_label,
+ .destroy = _label_pool_destroy,
+};
+
+struct labeller *pool_labeller_create(struct format_type *fmt)
+{
+ struct labeller *l;
+
+ if (!(l = dm_malloc(sizeof(*l)))) {
+ log_error("Couldn't allocate labeller object.");
+ return NULL;
+ }
+
+ l->ops = &_pool_ops;
+ l->fmt = fmt;
+
+ return l;
+}
diff --git a/lib/format_pool/pool_label.h b/lib/format_pool/pool_label.h
new file mode 100644
index 0000000..1a529a4
--- /dev/null
+++ b/lib/format_pool/pool_label.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 1997-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _LVM_POOL_LABEL_H
+#define _LVM_POOL_LABEL_H
+
+#include "metadata.h"
+
+struct labeller *pool_labeller_create(struct format_type *fmt);
+
+#endif
diff --git a/lib/format_pool/sptype_names.h b/lib/format_pool/sptype_names.h
new file mode 100644
index 0000000..5812adb
--- /dev/null
+++ b/lib/format_pool/sptype_names.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 1997-2004 Sistina Software, Inc. All rights reserved.
+ * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
+ *
+ * This file is part of LVM2.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU Lesser General Public License v.2.1.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SPTYPE_NAMES_H
+#define SPTYPE_NAMES_H
+
+/* This must be kept up to date with sistina/pool/module/pool_sptypes.h */
+
+/* Generic Labels */
+#define SPTYPE_DATA (0x00000000)
+
+/* GFS specific labels */
+#define SPTYPE_GFS_DATA (0x68011670)
+#define SPTYPE_GFS_JOURNAL (0x69011670)
+
+struct sptype_name {
+ const char *name;
+ uint32_t label;
+};
+
+static const struct sptype_name sptype_names[] = {
+ {"data", SPTYPE_DATA},
+
+ {"gfs_data", SPTYPE_GFS_DATA},
+ {"gfs_journal", SPTYPE_GFS_JOURNAL},
+
+ {"", 0x0} /* This must be the last flag. */
+};
+
+#endif
diff --git a/lib/format_text/export.c b/lib/format_text/export.c
index 7866d56..e535237 100644
--- a/lib/format_text/export.c
+++ b/lib/format_text/export.c
@@ -467,6 +467,8 @@ static int _print_vg(struct formatter *f, struct volume_group *vg)
if (vg->system_id && *vg->system_id)
outf(f, "system_id = \"%s\"", vg->system_id);
+ else if (vg->lvm1_system_id && *vg->lvm1_system_id)
+ outf(f, "system_id = \"%s\"", vg->lvm1_system_id);
if (vg->lock_type) {
outf(f, "lock_type = \"%s\"", vg->lock_type);
diff --git a/lib/format_text/format-text.c b/lib/format_text/format-text.c
index 5c7b72f..792d75a 100644
--- a/lib/format_text/format-text.c
+++ b/lib/format_text/format-text.c
@@ -2545,9 +2545,9 @@ struct format_type *create_text_format(struct cmd_context *cmd)
fmt->name = FMT_TEXT_NAME;
fmt->alias = FMT_TEXT_ALIAS;
fmt->orphan_vg_name = ORPHAN_VG_NAME(FMT_TEXT_NAME);
- fmt->features = FMT_SEGMENTS | FMT_TAGS | FMT_PRECOMMIT |
+ fmt->features = FMT_SEGMENTS | FMT_MDAS | FMT_TAGS | FMT_PRECOMMIT |
FMT_UNLIMITED_VOLS | FMT_RESIZE_PV |
- FMT_UNLIMITED_STRIPESIZE | FMT_CONFIG_PROFILE |
+ FMT_UNLIMITED_STRIPESIZE | FMT_BAS | FMT_CONFIG_PROFILE |
FMT_NON_POWER2_EXTENTS | FMT_PV_FLAGS;
if (!(mda_lists = dm_malloc(sizeof(struct mda_lists)))) {
diff --git a/lib/format_text/import_vsn1.c b/lib/format_text/import_vsn1.c
index 58f517e..e038a27 100644
--- a/lib/format_text/import_vsn1.c
+++ b/lib/format_text/import_vsn1.c
@@ -1084,8 +1084,15 @@ static struct volume_group *_read_vg(struct format_instance *fid,
goto bad;
}
+ /*
+ * A system id without WRITE_LOCKED is an old lvm1 system id.
+ */
if (dm_config_get_str(vgn, "system_id", &system_id)) {
- if (!(vg->system_id = dm_pool_strdup(vg->vgmem, system_id))) {
+ if (!(vgstatus & LVM_WRITE_LOCKED)) {
+ if (!(vg->lvm1_system_id = dm_pool_zalloc(vg->vgmem, NAME_LEN + 1)))
+ goto_bad;
+ strncpy(vg->lvm1_system_id, system_id, NAME_LEN);
+ } else if (!(vg->system_id = dm_pool_strdup(vg->vgmem, system_id))) {
log_error("Failed to allocate memory for system_id in _read_vg.");
goto bad;
}
diff --git a/lib/locking/locking.c b/lib/locking/locking.c
index 105419a..f90bd2d 100644
--- a/lib/locking/locking.c
+++ b/lib/locking/locking.c
@@ -207,6 +207,42 @@ void fin_locking(void)
}
/*
+ * Does the LVM1 driver know of this VG name?
+ */
+int check_lvm1_vg_inactive(struct cmd_context *cmd, const char *vgname)
+{
+ struct stat info;
+ char path[PATH_MAX];
+
+ /* We'll allow operations on orphans */
+ if (!is_real_vg(vgname))
+ return 1;
+
+ /* LVM1 is only present in 2.4 kernels. */
+ if (strncmp(cmd->kernel_vsn, "2.4.", 4))
+ return 1;
+
+ if (dm_snprintf(path, sizeof(path), "%s/lvm/VGs/%s", cmd->proc_dir,
+ vgname) < 0) {
+ log_error("LVM1 proc VG pathname too long for %s", vgname);
+ return 0;
+ }
+
+ if (stat(path, &info) == 0) {
+ log_error("%s exists: Is the original LVM driver using "
+ "this volume group?", path);
+ return 0;
+ }
+
+ if (errno != ENOENT && errno != ENOTDIR) {
+ log_sys_error("stat", path);
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
* VG locking is by VG name.
* FIXME This should become VG uuid.
*/
@@ -318,6 +354,10 @@ int lock_vol(struct cmd_context *cmd, const char *vol, uint32_t flags, const str
lvmcache_drop_metadata(vol, 0);
}
+ /* Lock VG to change on-disk metadata. */
+ /* If LVM1 driver knows about the VG, it can't be accessed. */
+ if (!check_lvm1_vg_inactive(cmd, vol))
+ return_0;
break;
case LCK_LV:
/* All LV locks are non-blocking. */
diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c
index 8c76a38..f18d5f8 100644
--- a/lib/metadata/lv_manip.c
+++ b/lib/metadata/lv_manip.c
@@ -5977,6 +5977,8 @@ int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
force_t force, int suppress_remove_message)
{
struct volume_group *vg;
+ struct logical_volume *format1_origin = NULL;
+ int format1_reload_required = 0;
int visible, historical;
struct logical_volume *pool_lv = NULL;
struct logical_volume *lock_lv = lv;
@@ -6129,6 +6131,10 @@ int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
}
if (lv_is_cow(lv)) {
+ /* Old format1 code */
+ if (!(lv->vg->fid->fmt->features & FMT_MDAS))
+ format1_origin = origin_from_cow(lv);
+
log_verbose("Removing snapshot volume %s.", display_lvname(lv));
/* vg_remove_snapshot() will preload origin/former snapshots */
if (!vg_remove_snapshot(lv))
@@ -6184,10 +6190,30 @@ int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
}
}
+ /*
+ * Old format1 code: If no snapshots left reload without -real.
+ */
+ if (format1_origin && !lv_is_origin(format1_origin)) {
+ log_warn("WARNING: Support for snapshots with old LVM1-style metadata is deprecated.");
+ log_warn("WARNING: Please use lvconvert to update to lvm2 metadata at your convenience.");
+ format1_reload_required = 1;
+ }
+
/* store it on disks */
if (!vg_write(vg) || !vg_commit(vg))
return_0;
+ /* format1 */
+ if (format1_reload_required) {
+ if (!suspend_lv(cmd, format1_origin))
+ log_error("Failed to refresh %s without snapshot.", format1_origin->name);
+
+ if (!resume_lv(cmd, format1_origin)) {
+ log_error("Failed to resume %s.", format1_origin->name);
+ return 0;
+ }
+ }
+
/* Release unneeded blocks in thin pool */
/* TODO: defer when multiple LVs relased at once */
if (pool_lv && !update_pool_lv(pool_lv, 1)) {
diff --git a/lib/metadata/metadata-exported.h b/lib/metadata/metadata-exported.h
index 97184ed..317fd51 100644
--- a/lib/metadata/metadata-exported.h
+++ b/lib/metadata/metadata-exported.h
@@ -149,7 +149,7 @@
/* Format features flags */
#define FMT_SEGMENTS 0x00000001U /* Arbitrary segment params? */
-// #define FMT_MDAS 0x00000002U /* Proper metadata areas? */
+#define FMT_MDAS 0x00000002U /* Proper metadata areas? */
#define FMT_TAGS 0x00000004U /* Tagging? */
#define FMT_UNLIMITED_VOLS 0x00000008U /* Unlimited PVs/LVs? */
#define FMT_RESTRICTED_LVIDS 0x00000010U /* LVID <= 255 */
@@ -158,13 +158,15 @@
#define FMT_RESIZE_PV 0x00000080U /* Supports pvresize? */
#define FMT_UNLIMITED_STRIPESIZE 0x00000100U /* Unlimited stripe size? */
#define FMT_RESTRICTED_READAHEAD 0x00000200U /* Readahead restricted to 2-120? */
-// #define FMT_BAS 0x000000400U /* Supports bootloader areas? */
+#define FMT_BAS 0x000000400U /* Supports bootloader areas? */
#define FMT_CONFIG_PROFILE 0x000000800U /* Supports configuration profiles? */
-// #define FMT_OBSOLETE 0x000001000U /* Obsolete format? */
+#define FMT_OBSOLETE 0x000001000U /* Obsolete format? */
#define FMT_NON_POWER2_EXTENTS 0x000002000U /* Non-power-of-2 extent sizes? */
-// #define FMT_SYSTEMID_ON_PVS 0x000004000U /* System ID is stored on PVs not VG */
+#define FMT_SYSTEMID_ON_PVS 0x000004000U /* System ID is stored on PVs not VG */
#define FMT_PV_FLAGS 0x000008000U /* Supports PV flags */
+#define systemid_on_pvs(vg) ((vg)->fid->fmt->features & FMT_SYSTEMID_ON_PVS)
+
/* Mirror conversion type flags */
#define MIRROR_BY_SEG 0x00000001U /* segment-by-segment mirror */
#define MIRROR_BY_LV 0x00000002U /* mirror using whole mimage LVs */
diff --git a/lib/metadata/metadata.c b/lib/metadata/metadata.c
index 2609840..1660a0a 100644
--- a/lib/metadata/metadata.c
+++ b/lib/metadata/metadata.c
@@ -1011,6 +1011,8 @@ struct volume_group *vg_create(struct cmd_context *cmd, const char *vg_name)
vg->status = (RESIZEABLE_VG | LVM_READ | LVM_WRITE);
vg->system_id = NULL;
+ if (!(vg->lvm1_system_id = dm_pool_zalloc(vg->vgmem, NAME_LEN + 1)))
+ goto_bad;
vg->extent_size = DEFAULT_EXTENT_SIZE * 2;
vg->max_lv = DEFAULT_MAX_LV;
@@ -2971,7 +2973,7 @@ int vg_write(struct volume_group *vg)
return 0;
}
- if (!_vg_adjust_ignored_mdas(vg))
+ if ((vg->fid->fmt->features & FMT_MDAS) && !_vg_adjust_ignored_mdas(vg))
return_0;
if (!vg_mda_used_count(vg)) {
@@ -5342,6 +5344,15 @@ int is_system_id_allowed(struct cmd_context *cmd, const char *system_id)
static int _access_vg_systemid(struct cmd_context *cmd, struct volume_group *vg)
{
/*
+ * LVM1 VGs must not be accessed if a new-style LVM2 system ID is set.
+ */
+ if (cmd->system_id && systemid_on_pvs(vg)) {
+ log_error("Cannot access VG %s with LVM1 system ID %s when host system ID is set.",
+ vg->name, vg->lvm1_system_id);
+ return 0;
+ }
+
+ /*
* A few commands allow read-only access to foreign VGs.
*/
if (cmd->include_foreign_vgs)
@@ -5393,6 +5404,11 @@ static int _vg_access_permitted(struct cmd_context *cmd, struct volume_group *vg
uint32_t lockd_state, uint32_t *failure)
{
if (!is_real_vg(vg->name)) {
+ /* Disallow use of LVM1 orphans when a host system ID is set. */
+ if (cmd->system_id && *cmd->system_id && systemid_on_pvs(vg)) {
+ *failure |= FAILED_SYSTEMID;
+ return_0;
+ }
return 1;
}
diff --git a/lib/metadata/segtype.h b/lib/metadata/segtype.h
index 40b41ec..3941612 100644
--- a/lib/metadata/segtype.h
+++ b/lib/metadata/segtype.h
@@ -32,7 +32,7 @@ struct dev_manager;
#define SEG_AREAS_STRIPED (1ULL << 1)
#define SEG_AREAS_MIRRORED (1ULL << 2)
#define SEG_SNAPSHOT (1ULL << 3)
-/* #define SEG_FORMAT1_SUPPORT (1ULL << 4) */
+#define SEG_FORMAT1_SUPPORT (1ULL << 4)
#define SEG_VIRTUAL (1ULL << 5)
#define SEG_CANNOT_BE_ZEROED (1ULL << 6)
#define SEG_MONITORED (1ULL << 7)
diff --git a/lib/metadata/snapshot_manip.c b/lib/metadata/snapshot_manip.c
index 76d78f3..8357ea0 100644
--- a/lib/metadata/snapshot_manip.c
+++ b/lib/metadata/snapshot_manip.c
@@ -332,6 +332,17 @@ int vg_remove_snapshot(struct logical_volume *cow)
cow->snapshot = NULL;
lv_set_visible(cow);
+ /* format1 must do the change in one step, with the commit last. */
+ if (!(origin->vg->fid->fmt->features & FMT_MDAS)) {
+ /* Get the lock for COW volume */
+ if (is_origin_active && !activate_lv(cow->vg->cmd, cow)) {
+ log_error("Unable to activate logical volume \"%s\"",
+ cow->name);
+ return 0;
+ }
+ return 1;
+ }
+
if (!vg_write(origin->vg))
return_0;
diff --git a/lib/metadata/vg.c b/lib/metadata/vg.c
index b8b1501..1020a67 100644
--- a/lib/metadata/vg.c
+++ b/lib/metadata/vg.c
@@ -42,6 +42,12 @@ struct volume_group *alloc_vg(const char *pool_name, struct cmd_context *cmd,
return NULL;
}
+ if (!(vg->lvm1_system_id = dm_pool_zalloc(vgmem, NAME_LEN + 1))) {
+ log_error("Failed to allocate VG systemd id.");
+ dm_pool_destroy(vgmem);
+ return NULL;
+ }
+
vg->system_id = "";
vg->cmd = cmd;
@@ -172,7 +178,7 @@ char *vg_name_dup(const struct volume_group *vg)
char *vg_system_id_dup(const struct volume_group *vg)
{
- return dm_pool_strdup(vg->vgmem, vg->system_id ? : "");
+ return dm_pool_strdup(vg->vgmem, vg->system_id ? : vg->lvm1_system_id ? : "");
}
char *vg_lock_type_dup(const struct volume_group *vg)
@@ -671,11 +677,20 @@ int vg_set_system_id(struct volume_group *vg, const char *system_id)
return 1;
}
+ if (systemid_on_pvs(vg)) {
+ log_error("Metadata format %s does not support this type of system ID.",
+ vg->fid->fmt->name);
+ return 0;
+ }
+
if (!(vg->system_id = dm_pool_strdup(vg->vgmem, system_id))) {
log_error("Failed to allocate memory for system_id in vg_set_system_id.");
return 0;
}
+ if (vg->lvm1_system_id)
+ *vg->lvm1_system_id = '\0';
+
return 1;
}
diff --git a/lib/metadata/vg.h b/lib/metadata/vg.h
index 7ecfafe..29d88f8 100644
--- a/lib/metadata/vg.h
+++ b/lib/metadata/vg.h
@@ -70,6 +70,7 @@ struct volume_group {
const char *name;
const char *old_name; /* Set during vgrename and vgcfgrestore */
const char *system_id;
+ char *lvm1_system_id;
const char *lock_type;
const char *lock_args;
diff --git a/lib/report/report.c b/lib/report/report.c
index 01ab627..6d6289e 100644
--- a/lib/report/report.c
+++ b/lib/report/report.c
@@ -2845,7 +2845,7 @@ static int _vgsystemid_disp(struct dm_report *rh, struct dm_pool *mem,
const void *data, void *private)
{
const struct volume_group *vg = (const struct volume_group *) data;
- const char *repstr = (vg->system_id && *vg->system_id) ? vg->system_id : "";
+ const char *repstr = (vg->system_id && *vg->system_id) ? vg->system_id : vg->lvm1_system_id ? : "";
return _field_string(rh, field, repstr);
}
@@ -3822,6 +3822,7 @@ static struct volume_group _dummy_vg = {
.fid = &_dummy_fid,
.name = "",
.system_id = (char *) "",
+ .lvm1_system_id = (char *) "",
.pvs = DM_LIST_HEAD_INIT(_dummy_vg.pvs),
.lvs = DM_LIST_HEAD_INIT(_dummy_vg.lvs),
.historical_lvs = DM_LIST_HEAD_INIT(_dummy_vg.historical_lvs),
@@ -3832,6 +3833,7 @@ static struct volume_group _unknown_vg = {
.fid = &_dummy_fid,
.name = "[unknown]",
.system_id = (char *) "",
+ .lvm1_system_id = (char *) "",
.pvs = DM_LIST_HEAD_INIT(_unknown_vg.pvs),
.lvs = DM_LIST_HEAD_INIT(_unknown_vg.lvs),
.historical_lvs = DM_LIST_HEAD_INIT(_unknown_vg.historical_lvs),
diff --git a/lib/striped/striped.c b/lib/striped/striped.c
index bca4c2c..e1de9c9 100644
--- a/lib/striped/striped.c
+++ b/lib/striped/striped.c
@@ -240,7 +240,7 @@ struct segment_type *init_striped_segtype(struct cmd_context *cmd)
segtype->ops = &_striped_ops;
segtype->name = SEG_TYPE_NAME_STRIPED;
segtype->flags = SEG_STRIPED_TARGET |
- SEG_CAN_SPLIT | SEG_AREAS_STRIPED;
+ SEG_CAN_SPLIT | SEG_AREAS_STRIPED | SEG_FORMAT1_SUPPORT;
log_very_verbose("Initialised segtype: %s", segtype->name);
diff --git a/man/vgconvert.8_des b/man/vgconvert.8_des
index 8519063..a0d34fd 100644
--- a/man/vgconvert.8_des
+++ b/man/vgconvert.8_des
@@ -1,3 +1,6 @@
-vgconvert converts VG metadata from one format to another. This command
-is no longer used because this version of lvm no longer supports the LVM1
+vgconvert converts VG metadata from one format to another. The new
+metadata format must be able to fit into the space provided by the old
format.
+
+Because the LVM1 format should no longer be used, this command is no
+longer needed in general.
diff --git a/test/shell/format-lvm1.sh b/test/shell/format-lvm1.sh
new file mode 100644
index 0000000..b88579f
--- /dev/null
+++ b/test/shell/format-lvm1.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2008 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+test_description='Test lvm1 format'
+
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+aux prepare_devs 1
+
+if test -n "$LVM_TEST_LVM1" ; then
+pvcreate -M1 "$dev1"
+vgcreate -M1 $vg "$dev1"
+check vg_field $vg fmt "lvm1"
+fi
+
+# TODO: if we decide to make using lvm1 with lvmetad an error,
+# then if lvmetad is being used, then verify:
+# not pvcreate -M1 "$dev1"
+# not vgcreate -M1 $vg "$dev1"
+#
+# TODO: if we decide to allow using lvm1 with lvmetad, but disable lvmetad
+# when it happens, then verify:
+# pvcreate -M1 "$dev1" | tee err
+# grep "disabled" err
+# vgcreate -M1 $vg "$dev1" | tee err
+# grep "disabled" err
+
diff --git a/test/shell/lvm1-basic.sh b/test/shell/lvm1-basic.sh
new file mode 100644
index 0000000..93509c4
--- /dev/null
+++ b/test/shell/lvm1-basic.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+SKIP_WITH_LVMLOCKD=1
+SKIP_WITHOUT_LVMETAD=1
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+aux prepare_devs 2
+pvcreate --metadatatype 1 "$dev1"
+pvs | tee out
+grep "$dev1" out
+vgcreate --metadatatype 1 $vg1 "$dev1"
+vgs | tee out
+grep $vg1 out
+pvs | tee out
+grep "$dev1" out
+
+# check for RHBZ 1080189 -- SEGV in lvremove/vgremove
+pvcreate -ff -y --metadatatype 1 "$dev1" "$dev2"
+vgcreate --metadatatype 1 $vg1 "$dev1" "$dev2"
+lvcreate -l1 $vg1 "$dev1"
+pvremove -ff -y "$dev2"
+vgchange -an $vg1
+not lvremove $vg1
+not vgremove -ff -y $vg1
diff --git a/test/shell/snapshot-lvm1.sh b/test/shell/snapshot-lvm1.sh
new file mode 100644
index 0000000..75c97cb
--- /dev/null
+++ b/test/shell/snapshot-lvm1.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2013 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+# regression test for lvmetad reporting error:
+# Internal error: LV snap_with_lvm1_meta (00000000000000000000000000000001) missing from preload metadata
+
+SKIP_WITH_LVMLOCKD=1
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+aux prepare_devs 2
+get_devs
+
+vgcreate --metadatatype 1 "$vg" "${DEVICES[@]}"
+
+# Make origin volume
+lvcreate -ae -l5 $vg -n origin
+
+# Create a snap of origin
+lvcreate -s $vg/origin -n snap_with_lvm1_meta -l4
+
+# Remove volume snapper/snap_with_lvm1_meta
+lvremove -f $vg/snap_with_lvm1_meta
+
+vgremove -ff $vg
diff --git a/tools/args.h b/tools/args.h
index 603a0cf..b80b8da 100644
--- a/tools/args.h
+++ b/tools/args.h
@@ -1207,7 +1207,8 @@ arg(mirrors_ARG, 'm', "mirrors", number_VAL, 0, 0,
arg(metadatatype_ARG, 'M', "metadatatype", metadatatype_VAL, 0, 0,
"Specifies the type of on-disk metadata to use.\n"
"\\fBlvm2\\fP (or just \\fB2\\fP) is the current, standard format.\n"
- "\\fBlvm1\\fP (or just \\fB1\\fP) is no longer used.\n")
+ "\\fBlvm1\\fP (or just \\fB1\\fP) is a historical format that\n"
+ "can be used for accessing old data.\n")
arg(name_ARG, 'n', "name", string_VAL, 0, 0,
"#lvcreate\n"
diff --git a/tools/lvconvert.c b/tools/lvconvert.c
index 72f840a..abdcf2c 100644
--- a/tools/lvconvert.c
+++ b/tools/lvconvert.c
@@ -1802,6 +1802,11 @@ static int _lvconvert_splitsnapshot(struct cmd_context *cmd, struct logical_volu
return 0;
}
+ if (!(vg->fid->fmt->features & FMT_MDAS)) {
+ log_error("Unable to split off snapshot %s using old LVM1-style metadata.", cow_name);
+ return 0;
+ }
+
if (is_lockd_type(vg->lock_type)) {
/* FIXME: we need to create a lock for the new LV. */
log_error("Unable to split snapshots in VG with lock_type %s.", vg->lock_type);
diff --git a/tools/lvmcmdline.c b/tools/lvmcmdline.c
index 0dd24ec..0600b1c 100644
--- a/tools/lvmcmdline.c
+++ b/tools/lvmcmdline.c
@@ -23,6 +23,7 @@
#include "stub.h"
#include "last-path-component.h"
+#include "format1.h"
#include <signal.h>
#include <sys/stat.h>
@@ -2899,6 +2900,13 @@ int lvm_run_command(struct cmd_context *cmd, int argc, char **argv)
goto out;
}
+ if (!strcmp(cmd->fmt->name, FMT_LVM1_NAME) && lvmetad_used()) {
+ log_warn("WARNING: Disabling lvmetad cache which does not support obsolete metadata.");
+ lvmetad_set_disabled(cmd, LVMETAD_DISABLE_REASON_LVM1);
+ log_warn("WARNING: Not using lvmetad because lvm1 format is used.");
+ lvmetad_make_unused(cmd);
+ }
+
if (cmd->command->command_enum == lvconvert_repair_CMD) {
log_warn("WARNING: Disabling lvmetad cache for repair command.");
lvmetad_set_disabled(cmd, LVMETAD_DISABLE_REASON_REPAIR);
@@ -2963,7 +2971,7 @@ int lvm_run_command(struct cmd_context *cmd, int argc, char **argv)
* by different token values.)
*
* lvmetad may have been previously disabled (or disabled during the
- * rescan done here) because duplicate devices were seen.
+ * rescan done here) because duplicate devices or lvm1 metadata were seen.
* In this case, disable the *use* of lvmetad by this command, reverting to
* disk scanning.
*/
@@ -3388,6 +3396,41 @@ static int _run_script(struct cmd_context *cmd, int argc, char **argv)
return ret;
}
+/*
+ * Determine whether we should fall back and exec the equivalent LVM1 tool
+ */
+static int _lvm1_fallback(struct cmd_context *cmd)
+{
+ char vsn[80];
+ int dm_present;
+
+ if (!find_config_tree_bool(cmd, global_fallback_to_lvm1_CFG, NULL) ||
+ strncmp(cmd->kernel_vsn, "2.4.", 4))
+ return 0;
+
+ log_suppress(1);
+ dm_present = driver_version(vsn, sizeof(vsn));
+ log_suppress(0);
+
+ if (dm_present || !lvm1_present(cmd))
+ return 0;
+
+ return 1;
+}
+
+static void _exec_lvm1_command(char **argv)
+{
+ char path[PATH_MAX];
+
+ if (dm_snprintf(path, sizeof(path), "%s.lvm1", argv[0]) < 0) {
+ log_error("Failed to create LVM1 tool pathname");
+ return;
+ }
+
+ execvp(path, argv);
+ log_sys_error("execvp", path);
+}
+
static void _nonroot_warning(void)
{
if (getuid() || geteuid())
@@ -3477,6 +3520,19 @@ int lvm2_main(int argc, char **argv)
} else
run_name = dm_basename(argv[0]);
+ if (_lvm1_fallback(cmd)) {
+ /* Attempt to run equivalent LVM1 tool instead */
+ if (!argc) {
+ log_error("Falling back to LVM1 tools, but no "
+ "command specified.");
+ ret = ECMD_FAILED;
+ goto out;
+ }
+ _exec_lvm1_command(argv);
+ ret = ECMD_FAILED;
+ goto_out;
+ }
+
/*
* Decide if we are running a shell or a command or a script. When
* there is no run_name, it's a shell, when run_name is a recognized
diff --git a/tools/pvscan.c b/tools/pvscan.c
index 8493eaa..8649c6b 100644
--- a/tools/pvscan.c
+++ b/tools/pvscan.c
@@ -630,7 +630,7 @@ out:
* display the PV info.
*
* iii. If lvmetad is being used, but has been disabled (because of
- * duplicate devs), or has a non-matching token
+ * duplicate devs or lvm1 metadata), or has a non-matching token
* (because the device filter is different from the device filter last
* used to populate lvmetad), then 'pvscan' will begin by rescanning
* devices to repopulate lvmetad. If lvmetad is enabled after the
@@ -643,7 +643,8 @@ out:
* attempt to repopulate the lvmetad cache by rescanning all devs
* (regardless of whether lvmetad was previously disabled or had an
* unmatching token.) lvmetad may be enabled or disabled after the
- * rescan (depending on whether duplicate devs).
+ * rescan (depending on whether duplicate devs or lvm1 metadata was
+ * found).
*
* 3. The 'pvscan --cache <dev>' command will attempt to repopulate the
* lvmetad cache by rescanning all devs if lvmetad has a non-matching
diff --git a/tools/stub.h b/tools/stub.h
index 1d58387..f03e5d3 100644
--- a/tools/stub.h
+++ b/tools/stub.h
@@ -37,6 +37,7 @@ int pvdata(struct cmd_context *cmd __attribute__((unused)),
{
log_error("There's no 'pvdata' command in LVM2.");
log_error("Use lvs, pvs, vgs instead; or use vgcfgbackup and read the text file backup.");
+ log_error("Metadata in LVM1 format can still be displayed using LVM1's pvdata command.");
return ECMD_FAILED;
}
diff --git a/tools/toollib.c b/tools/toollib.c
index 0fc86cf..e19923c 100644
--- a/tools/toollib.c
+++ b/tools/toollib.c
@@ -14,6 +14,7 @@
*/
#include "tools.h"
+#include "format1.h"
#include "format-text.h"
#include <sys/stat.h>
@@ -4110,6 +4111,7 @@ static int _process_duplicate_pvs(struct cmd_context *cmd,
.fid = &dummy_fid,
.name = "",
.system_id = (char *) "",
+ .lvm1_system_id = (char *) "",
.pvs = DM_LIST_HEAD_INIT(dummy_vg.pvs),
.lvs = DM_LIST_HEAD_INIT(dummy_vg.lvs),
.historical_lvs = DM_LIST_HEAD_INIT(dummy_vg.historical_lvs),
@@ -4747,6 +4749,23 @@ int pvcreate_params_from_args(struct cmd_context *cmd, struct pvcreate_params *p
pp->pva.label_sector = arg_int64_value(cmd, labelsector_ARG,
DEFAULT_LABELSECTOR);
+ if (!(cmd->fmt->features & FMT_MDAS) &&
+ (arg_is_set(cmd, pvmetadatacopies_ARG) ||
+ arg_is_set(cmd, metadatasize_ARG) ||
+ arg_is_set(cmd, dataalignment_ARG) ||
+ arg_is_set(cmd, dataalignmentoffset_ARG))) {
+ log_error("Metadata and data alignment parameters only "
+ "apply to text format.");
+ return 0;
+ }
+
+ if (!(cmd->fmt->features & FMT_BAS) &&
+ arg_is_set(cmd, bootloaderareasize_ARG)) {
+ log_error("Bootloader area parameters only "
+ "apply to text format.");
+ return 0;
+ }
+
if (arg_is_set(cmd, metadataignore_ARG))
pp->pva.metadataignore = arg_int_value(cmd, metadataignore_ARG,
DEFAULT_PVMETADATAIGNORE);
@@ -5106,7 +5125,10 @@ static int _pvcreate_check_single(struct cmd_context *cmd,
pd->is_orphan_pv = 1;
}
- pp->orphan_vg_name = FMT_TEXT_ORPHAN_VG_NAME;
+ if (!strcmp(vg->name, FMT_LVM1_ORPHAN_VG_NAME))
+ pp->orphan_vg_name = FMT_LVM1_ORPHAN_VG_NAME;
+ else
+ pp->orphan_vg_name = FMT_TEXT_ORPHAN_VG_NAME;
} else {
log_debug("Found pvcreate arg %s: device is not a PV.", pd->name);
/* Device is not a PV. */
@@ -5335,7 +5357,10 @@ static int _pvremove_check_single(struct cmd_context *cmd,
pd->is_orphan_pv = 1;
}
- pp->orphan_vg_name = FMT_TEXT_ORPHAN_VG_NAME;
+ if (!strcmp(vg->name, FMT_LVM1_ORPHAN_VG_NAME))
+ pp->orphan_vg_name = FMT_LVM1_ORPHAN_VG_NAME;
+ else
+ pp->orphan_vg_name = FMT_TEXT_ORPHAN_VG_NAME;
} else {
/* FIXME: is it possible to reach here? */
log_debug("Found pvremove arg %s: device is not a PV.", pd->name);
diff --git a/tools/vals.h b/tools/vals.h
index 79c48b5..95dc8b2 100644
--- a/tools/vals.h
+++ b/tools/vals.h
@@ -77,7 +77,7 @@
*
* FIXME: are there some specialized or irrelevant
* options included in the usage text below that should
- * be removed?
+ * be removed? Should "lvm1" be removed?
*
* Size is a Number that takes an optional unit.
* A full usage could be "Size[b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E]"
@@ -126,7 +126,7 @@ val(sextents_VAL, sextents_arg, "SExtents", "[+|-]Number[PERCENT]")
val(pextents_VAL, pextents_arg, "PExtents", "[+]Number[PERCENT]")
val(nextents_VAL, nextents_arg, "NExtents", "[-]Number[PERCENT]")
val(permission_VAL, permission_arg, "Permission", "rw|r")
-val(metadatatype_VAL, metadatatype_arg, "MetadataType", "lvm2")
+val(metadatatype_VAL, metadatatype_arg, "MetadataType", "lvm2|lvm1")
val(units_VAL, string_arg, "Units", "r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E")
val(segtype_VAL, segtype_arg, "SegType", "linear|striped|snapshot|mirror|raid|thin|cache|thin-pool|cache-pool")
val(alloc_VAL, alloc_arg, "Alloc", "contiguous|cling|cling_by_tags|normal|anywhere|inherit")
diff --git a/tools/vgchange.c b/tools/vgchange.c
index e231c86..61b78df 100644
--- a/tools/vgchange.c
+++ b/tools/vgchange.c
@@ -534,6 +534,13 @@ static int _vgchange_system_id(struct cmd_context *cmd, struct volume_group *vg)
const char *system_id;
const char *system_id_arg_str = arg_str_value(cmd, systemid_ARG, NULL);
+ /* FIXME Merge with vg_set_system_id() */
+ if (systemid_on_pvs(vg)) {
+ log_error("Metadata format %s does not support this type of system ID.",
+ vg->fid->fmt->name);
+ return 0;
+ }
+
if (!(system_id = system_id_from_string(cmd, system_id_arg_str))) {
log_error("Unable to set system ID.");
return 0;
@@ -583,6 +590,9 @@ static int _vgchange_system_id(struct cmd_context *cmd, struct volume_group *vg)
vg->system_id = system_id;
+ if (vg->lvm1_system_id)
+ *vg->lvm1_system_id = '\0';
+
return 1;
}
diff --git a/tools/vgconvert.c b/tools/vgconvert.c
index ca9615c..8bdf8be 100644
--- a/tools/vgconvert.c
+++ b/tools/vgconvert.c
@@ -34,25 +34,29 @@ static int _vgconvert_single(struct cmd_context *cmd, const char *vg_name,
return ECMD_FAILED;
}
- if (arg_sign_value(cmd, metadatasize_ARG, SIGN_NONE) == SIGN_MINUS) {
- log_error("Metadata size may not be negative");
- return EINVALID_CMD_LINE;
- }
-
- pva.pvmetadatasize = arg_uint64_value(cmd, metadatasize_ARG, UINT64_C(0));
- if (!pva.pvmetadatasize)
- pva.pvmetadatasize = find_config_tree_int(cmd, metadata_pvmetadatasize_CFG, NULL);
+ if (cmd->fmt->features & FMT_MDAS) {
+ if (arg_sign_value(cmd, metadatasize_ARG, SIGN_NONE) == SIGN_MINUS) {
+ log_error("Metadata size may not be negative");
+ return EINVALID_CMD_LINE;
+ }
- pva.pvmetadatacopies = arg_int_value(cmd, pvmetadatacopies_ARG, -1);
- if (pva.pvmetadatacopies < 0)
- pva.pvmetadatacopies = find_config_tree_int(cmd, metadata_pvmetadatacopies_CFG, NULL);
+ pva.pvmetadatasize = arg_uint64_value(cmd, metadatasize_ARG, UINT64_C(0));
+ if (!pva.pvmetadatasize)
+ pva.pvmetadatasize = find_config_tree_int(cmd, metadata_pvmetadatasize_CFG, NULL);
- if (arg_sign_value(cmd, bootloaderareasize_ARG, SIGN_NONE) == SIGN_MINUS) {
- log_error("Bootloader area size may not be negative");
- return EINVALID_CMD_LINE;
+ pva.pvmetadatacopies = arg_int_value(cmd, pvmetadatacopies_ARG, -1);
+ if (pva.pvmetadatacopies < 0)
+ pva.pvmetadatacopies = find_config_tree_int(cmd, metadata_pvmetadatacopies_CFG, NULL);
}
- pva.ba_size = arg_uint64_value(cmd, bootloaderareasize_ARG, UINT64_C(0));
+ if (cmd->fmt->features & FMT_BAS) {
+ if (arg_sign_value(cmd, bootloaderareasize_ARG, SIGN_NONE) == SIGN_MINUS) {
+ log_error("Bootloader area size may not be negative");
+ return EINVALID_CMD_LINE;
+ }
+
+ pva.ba_size = arg_uint64_value(cmd, bootloaderareasize_ARG, UINT64_C(0));
+ }
if (!vg_check_new_extent_size(cmd->fmt, vg->extent_size))
return_ECMD_FAILED;
@@ -82,6 +86,13 @@ static int _vgconvert_single(struct cmd_context *cmd, const char *vg_name,
return ECMD_FAILED;
}
+ /* New-style system ID supported? */
+ if (vg->system_id && *vg->system_id && (cmd->fmt->features & FMT_SYSTEMID_ON_PVS)) {
+ log_error("Unable to convert VG %s while it has a system ID set (%s).", vg->name,
+ vg->system_id);
+ return ECMD_FAILED;
+ }
+
/* Attempt to change any LVIDs that are too big */
if (cmd->fmt->features & FMT_RESTRICTED_LVIDS) {
dm_list_iterate_items(lvl, &vg->lvs) {
@@ -146,6 +157,18 @@ int vgconvert(struct cmd_context *cmd, int argc, char **argv)
return EINVALID_CMD_LINE;
}
+ if (!(cmd->fmt->features & FMT_MDAS) &&
+ arg_is_set(cmd, pvmetadatacopies_ARG)) {
+ log_error("Metadata parameters only apply to text format");
+ return EINVALID_CMD_LINE;
+ }
+
+ if (!(cmd->fmt->features & FMT_BAS) &&
+ arg_is_set(cmd, bootloaderareasize_ARG)) {
+ log_error("Bootloader area parameters only apply to text format");
+ return EINVALID_CMD_LINE;
+ }
+
return process_each_vg(cmd, argc, argv, NULL, NULL, READ_FOR_UPDATE, 0, NULL,
&_vgconvert_single);
}
diff --git a/tools/vgscan.c b/tools/vgscan.c
index f9fa382..1ec9083 100644
--- a/tools/vgscan.c
+++ b/tools/vgscan.c
@@ -44,7 +44,7 @@ static int _vgscan_single(struct cmd_context *cmd, const char *vg_name,
* display the VG info.
*
* iii. If lvmetad is being used, but has been disabled (because of
- * duplicate devs), or has a non-matching token
+ * duplicate devs or lvm1 metadata), or has a non-matching token
* (because the device filter is different from the device filter last
* used to populate lvmetad), then 'vgscan' will begin by rescanning
* devices to repopulate lvmetad. If lvmetad is enabled after the
@@ -57,7 +57,7 @@ static int _vgscan_single(struct cmd_context *cmd, const char *vg_name,
* the lvmetad cache by rescanning all devs (regardless of whether
* lvmetad was previously disabled or had an unmatching token.)
* lvmetad may be enabled or disabled after the rescan (depending
- * on whether duplicate devs were found).
+ * on whether duplicate devs or lvm1 metadata was found).
* If enabled, then it will simply read and display VG info from the
* lvmetad cache (like case 1.i.). If disabled, then it will
* read all devices to display VG info (like case 1.ii.)
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