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lvm2/lib/commands/toolcontext.c
Zdenek Kabelac 2925023411 cleanup: improve messages 
Add verbose message when we will not obtain devices from udev
(i.e. testing is using different udev dir, and the log was
giving misleading info about using udev)

Add proper error message if zalloc from pull would have failed.

Fix typo obolete -> obsolete
2013-04-23 12:27:33 +02:00

1742 lines
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/*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "lib.h"
#include "toolcontext.h"
#include "metadata.h"
#include "defaults.h"
#include "lvm-string.h"
#include "activate.h"
#include "filter.h"
#include "filter-composite.h"
#include "filter-md.h"
#include "filter-mpath.h"
#include "filter-persistent.h"
#include "filter-regex.h"
#include "filter-sysfs.h"
#include "label.h"
#include "lvm-file.h"
#include "format-text.h"
#include "display.h"
#include "memlock.h"
#include "str_list.h"
#include "segtype.h"
#include "lvmcache.h"
#include "lvmetad.h"
#include "dev-cache.h"
#include "archiver.h"
#ifdef HAVE_LIBDL
#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/utsname.h>
#include <syslog.h>
#include <time.h>
#ifdef linux
# include <malloc.h>
#endif
static const size_t linebuffer_size = 4096;
static int _get_env_vars(struct cmd_context *cmd)
{
const char *e;
/* Set to "" to avoid using any system directory */
if ((e = getenv("LVM_SYSTEM_DIR"))) {
if (dm_snprintf(cmd->system_dir, sizeof(cmd->system_dir),
"%s", e) < 0) {
log_error("LVM_SYSTEM_DIR environment variable "
"is too long.");
return 0;
}
}
return 1;
}
static void _get_sysfs_dir(struct cmd_context *cmd)
{
static char proc_mounts[PATH_MAX];
static char *split[4], buffer[PATH_MAX + 16];
FILE *fp;
char *sys_mnt = NULL;
cmd->sysfs_dir[0] = '\0';
if (!*cmd->proc_dir) {
log_debug("No proc filesystem found: skipping sysfs detection");
return;
}
if (dm_snprintf(proc_mounts, sizeof(proc_mounts),
"%s/mounts", cmd->proc_dir) < 0) {
log_error("Failed to create /proc/mounts string for sysfs detection");
return;
}
if (!(fp = fopen(proc_mounts, "r"))) {
log_sys_error("_get_sysfs_dir fopen", proc_mounts);
return;
}
while (fgets(buffer, sizeof(buffer), fp)) {
if (dm_split_words(buffer, 4, 0, split) == 4 &&
!strcmp(split[2], "sysfs")) {
sys_mnt = split[1];
break;
}
}
if (fclose(fp))
log_sys_error("fclose", proc_mounts);
if (!sys_mnt) {
log_error("Failed to find sysfs mount point");
return;
}
strncpy(cmd->sysfs_dir, sys_mnt, sizeof(cmd->sysfs_dir));
}
static int _parse_debug_classes(struct cmd_context *cmd)
{
const struct dm_config_node *cn;
const struct dm_config_value *cv;
int debug_classes = 0;
if (!(cn = find_config_tree_node(cmd, log_debug_classes_CFG)))
return DEFAULT_LOGGED_DEBUG_CLASSES;
for (cv = cn->v; cv; cv = cv->next) {
if (cv->type != DM_CFG_STRING) {
log_verbose("log/debug_classes contains a value "
"which is not a string. Ignoring.");
continue;
}
if (!strcasecmp(cv->v.str, "all"))
return -1;
if (!strcasecmp(cv->v.str, "memory"))
debug_classes |= LOG_CLASS_MEM;
else if (!strcasecmp(cv->v.str, "devices"))
debug_classes |= LOG_CLASS_DEVS;
else if (!strcasecmp(cv->v.str, "activation"))
debug_classes |= LOG_CLASS_ACTIVATION;
else if (!strcasecmp(cv->v.str, "allocation"))
debug_classes |= LOG_CLASS_ALLOC;
else if (!strcasecmp(cv->v.str, "lvmetad"))
debug_classes |= LOG_CLASS_LVMETAD;
else if (!strcasecmp(cv->v.str, "metadata"))
debug_classes |= LOG_CLASS_METADATA;
else if (!strcasecmp(cv->v.str, "cache"))
debug_classes |= LOG_CLASS_CACHE;
else if (!strcasecmp(cv->v.str, "locking"))
debug_classes |= LOG_CLASS_LOCKING;
else
log_verbose("Unrecognised value for log/debug_classes: %s", cv->v.str);
}
return debug_classes;
}
static void _init_logging(struct cmd_context *cmd)
{
int append = 1;
time_t t;
const char *log_file;
char timebuf[26];
/* Syslog */
cmd->default_settings.syslog = find_config_tree_bool(cmd, log_syslog_CFG);
if (cmd->default_settings.syslog != 1)
fin_syslog();
if (cmd->default_settings.syslog > 1)
init_syslog(cmd->default_settings.syslog);
/* Debug level for log file output */
cmd->default_settings.debug = find_config_tree_int(cmd, log_level_CFG);
init_debug(cmd->default_settings.debug);
/*
* Suppress all non-essential stdout?
* -qq can override the default of 0 to 1 later.
* Once set to 1, there is no facility to change it back to 0.
*/
cmd->default_settings.silent = silent_mode() ? :
find_config_tree_bool(cmd, log_silent_CFG);
init_silent(cmd->default_settings.silent);
/* Verbose level for tty output */
cmd->default_settings.verbose = find_config_tree_bool(cmd, log_verbose_CFG);
init_verbose(cmd->default_settings.verbose + VERBOSE_BASE_LEVEL);
/* Log message formatting */
init_indent(find_config_tree_bool(cmd, log_indent_CFG));
init_abort_on_internal_errors(find_config_tree_bool(cmd, global_abort_on_internal_errors_CFG));
cmd->default_settings.msg_prefix = find_config_tree_str_allow_empty(cmd, log_prefix_CFG);
init_msg_prefix(cmd->default_settings.msg_prefix);
cmd->default_settings.cmd_name = find_config_tree_bool(cmd, log_command_names_CFG);
init_cmd_name(cmd->default_settings.cmd_name);
/* Test mode */
cmd->default_settings.test =
find_config_tree_bool(cmd, global_test_CFG);
init_test(cmd->default_settings.test);
/* Settings for logging to file */
if (find_config_tree_bool(cmd, log_overwrite_CFG))
append = 0;
log_file = find_config_tree_str(cmd, log_file_CFG);
if (log_file) {
release_log_memory();
fin_log();
init_log_file(log_file, append);
}
log_file = find_config_tree_str(cmd, log_activate_file_CFG);
if (log_file)
init_log_direct(log_file, append);
init_log_while_suspended(find_config_tree_bool(cmd, log_activation_CFG));
cmd->default_settings.debug_classes = _parse_debug_classes(cmd);
log_debug("Setting log debug classes to %d", cmd->default_settings.debug_classes);
init_debug_classes_logged(cmd->default_settings.debug_classes);
t = time(NULL);
ctime_r(&t, &timebuf[0]);
timebuf[24] = '\0';
log_verbose("Logging initialised at %s", timebuf);
/* Tell device-mapper about our logging */
#ifdef DEVMAPPER_SUPPORT
dm_log_with_errno_init(print_log);
#endif
reset_log_duplicated();
reset_lvm_errno(1);
}
static int _check_disable_udev(const char *msg) {
if (getenv("DM_DISABLE_UDEV")) {
log_very_verbose("DM_DISABLE_UDEV environment variable set. "
"Overriding configuration to use "
"udev_rules=0, udev_sync=0, verify_udev_operations=1.");
if (udev_is_running())
log_warn("Udev is running and DM_DISABLE_UDEV environment variable is set. "
"Bypassing udev, LVM will %s.", msg);
return 1;
}
return 0;
}
#ifdef UDEV_SYNC_SUPPORT
/*
* Until the DM_UEVENT_GENERATED_FLAG was introduced in kernel patch
* 856a6f1dbd8940e72755af145ebcd806408ecedd
* some operations could not be performed by udev, requiring our fallback code.
*/
static int _dm_driver_has_stable_udev_support(void)
{
char vsn[80];
unsigned maj, min, patchlevel;
return driver_version(vsn, sizeof(vsn)) &&
(sscanf(vsn, "%u.%u.%u", &maj, &min, &patchlevel) == 3) &&
(maj == 4 ? min >= 18 : maj > 4);
}
#endif
static int _process_config(struct cmd_context *cmd)
{
mode_t old_umask;
const char *read_ahead;
struct stat st;
const struct dm_config_node *cn;
const struct dm_config_value *cv;
int64_t pv_min_kb;
const char *lvmetad_socket;
int udev_disabled = 0;
if (!config_def_check(cmd, 0, 0, 0) && find_config_tree_bool(cmd, config_abort_on_errors_CFG)) {
log_error("LVM configuration invalid.");
return 0;
}
/* umask */
cmd->default_settings.umask = find_config_tree_int(cmd, global_umask_CFG);
if ((old_umask = umask((mode_t) cmd->default_settings.umask)) !=
(mode_t) cmd->default_settings.umask)
log_verbose("Set umask from %04o to %04o",
old_umask, cmd->default_settings.umask);
/* dev dir */
if (dm_snprintf(cmd->dev_dir, sizeof(cmd->dev_dir), "%s/",
find_config_tree_str(cmd, devices_dir_CFG)) < 0) {
log_error("Device directory given in config file too long");
return 0;
}
#ifdef DEVMAPPER_SUPPORT
dm_set_dev_dir(cmd->dev_dir);
if (!dm_set_uuid_prefix("LVM-"))
return_0;
#endif
/* proc dir */
if (dm_snprintf(cmd->proc_dir, sizeof(cmd->proc_dir), "%s",
find_config_tree_str(cmd, global_proc_CFG)) < 0) {
log_error("Device directory given in config file too long");
return 0;
}
if (*cmd->proc_dir && !dir_exists(cmd->proc_dir)) {
log_warn("WARNING: proc dir %s not found - some checks will be bypassed",
cmd->proc_dir);
cmd->proc_dir[0] = '\0';
}
/* FIXME Use global value of sysfs_dir everywhere instead cmd->sysfs_dir. */
_get_sysfs_dir(cmd);
set_sysfs_dir_path(cmd->sysfs_dir);
dm_set_sysfs_dir(cmd->sysfs_dir);
/* activation? */
cmd->default_settings.activation = find_config_tree_bool(cmd, global_activation_CFG);
set_activation(cmd->default_settings.activation);
cmd->default_settings.suffix = find_config_tree_bool(cmd, global_suffix_CFG);
if (!(cmd->default_settings.unit_factor =
units_to_bytes(find_config_tree_str(cmd, global_units_CFG),
&cmd->default_settings.unit_type))) {
log_error("Invalid units specification");
return 0;
}
read_ahead = find_config_tree_str(cmd, activation_readahead_CFG);
if (!strcasecmp(read_ahead, "auto"))
cmd->default_settings.read_ahead = DM_READ_AHEAD_AUTO;
else if (!strcasecmp(read_ahead, "none"))
cmd->default_settings.read_ahead = DM_READ_AHEAD_NONE;
else {
log_error("Invalid readahead specification");
return 0;
}
/*
* If udev is disabled using DM_DISABLE_UDEV environment
* variable, override existing config and hardcode these:
* - udev_rules = 0
* - udev_sync = 0
* - udev_fallback = 1
*/
udev_disabled = _check_disable_udev("manage logical volume symlinks in device directory");
cmd->default_settings.udev_rules = udev_disabled ? 0 :
find_config_tree_bool(cmd, activation_udev_rules_CFG);
cmd->default_settings.udev_sync = udev_disabled ? 0 :
find_config_tree_bool(cmd, activation_udev_sync_CFG);
init_retry_deactivation(find_config_tree_bool(cmd, activation_retry_deactivation_CFG));
init_activation_checks(find_config_tree_bool(cmd, activation_checks_CFG));
#ifdef UDEV_SYNC_SUPPORT
/*
* Use udev fallback automatically in case udev
* is disabled via DM_DISABLE_UDEV environment
* variable or udev rules are switched off.
*/
cmd->default_settings.udev_fallback = !cmd->default_settings.udev_rules || udev_disabled ? 1 :
find_config_tree_bool(cmd, activation_verify_udev_operations_CFG);
/* Do not rely fully on udev if the udev support is known to be incomplete. */
if (!cmd->default_settings.udev_fallback && !_dm_driver_has_stable_udev_support()) {
log_very_verbose("Kernel driver has incomplete udev support so "
"LVM will check and perform some operations itself.");
cmd->default_settings.udev_fallback = 1;
}
#else
/* We must use old node/symlink creation code if not compiled with udev support at all! */
cmd->default_settings.udev_fallback = 1;
#endif
cmd->use_linear_target = find_config_tree_bool(cmd, activation_use_linear_target_CFG);
cmd->stripe_filler = find_config_tree_str(cmd, activation_missing_stripe_filler_CFG);
/* FIXME Missing error code checks from the stats, not log_warn?, notify if setting overridden, delay message/check till it is actually used (eg consider if lvm shell - file could appear later after this check)? */
if (!strcmp(cmd->stripe_filler, "/dev/ioerror") &&
stat(cmd->stripe_filler, &st))
cmd->stripe_filler = "error";
if (strcmp(cmd->stripe_filler, "error")) {
if (stat(cmd->stripe_filler, &st)) {
log_warn("WARNING: activation/missing_stripe_filler = \"%s\" "
"is invalid,", cmd->stripe_filler);
log_warn(" stat failed: %s", strerror(errno));
log_warn("Falling back to \"error\" missing_stripe_filler.");
cmd->stripe_filler = "error";
} else if (!S_ISBLK(st.st_mode)) {
log_warn("WARNING: activation/missing_stripe_filler = \"%s\" "
"is not a block device.", cmd->stripe_filler);
log_warn("Falling back to \"error\" missing_stripe_filler.");
cmd->stripe_filler = "error";
}
}
cmd->si_unit_consistency = find_config_tree_bool(cmd, global_si_unit_consistency_CFG);
if ((cn = find_config_tree_node(cmd, activation_mlock_filter_CFG)))
for (cv = cn->v; cv; cv = cv->next)
if ((cv->type != DM_CFG_STRING) || !cv->v.str[0])
log_error("Ignoring invalid activation/mlock_filter entry in config file");
cmd->metadata_read_only = find_config_tree_bool(cmd, global_metadata_read_only_CFG);
pv_min_kb = find_config_tree_int64(cmd, devices_pv_min_size_CFG);
if (pv_min_kb < PV_MIN_SIZE_KB) {
log_warn("Ignoring too small pv_min_size %" PRId64 "KB, using default %dKB.",
pv_min_kb, PV_MIN_SIZE_KB);
pv_min_kb = PV_MIN_SIZE_KB;
}
/* LVM stores sizes internally in units of 512-byte sectors. */
init_pv_min_size((uint64_t)pv_min_kb * (1024 >> SECTOR_SHIFT));
init_detect_internal_vg_cache_corruption
(find_config_tree_bool(cmd, global_detect_internal_vg_cache_corruption_CFG));
lvmetad_disconnect();
lvmetad_socket = getenv("LVM_LVMETAD_SOCKET");
if (!lvmetad_socket)
lvmetad_socket = DEFAULT_RUN_DIR "/lvmetad.socket";
/* TODO?
lvmetad_socket = find_config_tree_str(cmd, "lvmetad/socket_path",
DEFAULT_RUN_DIR "/lvmetad.socket");
*/
lvmetad_set_socket(lvmetad_socket);
cn = find_config_tree_node(cmd, devices_global_filter_CFG);
lvmetad_set_token(cn ? cn->v : NULL);
if (find_config_tree_int(cmd, global_locking_type_CFG) == 3 &&
find_config_tree_bool(cmd, global_use_lvmetad_CFG)) {
log_warn("WARNING: configuration setting use_lvmetad overriden to 0 due to locking_type 3. "
"Clustered environment not supported by lvmetad yet.");
lvmetad_set_active(0);
} else
lvmetad_set_active(find_config_tree_bool(cmd, global_use_lvmetad_CFG));
lvmetad_init(cmd);
return 1;
}
static int _set_tag(struct cmd_context *cmd, const char *tag)
{
log_very_verbose("Setting host tag: %s", dm_pool_strdup(cmd->libmem, tag));
if (!str_list_add(cmd->libmem, &cmd->tags, tag)) {
log_error("_set_tag: str_list_add %s failed", tag);
return 0;
}
return 1;
}
static int _check_host_filters(struct cmd_context *cmd, const struct dm_config_node *hn,
int *passes)
{
const struct dm_config_node *cn;
const struct dm_config_value *cv;
*passes = 1;
for (cn = hn; cn; cn = cn->sib) {
if (!cn->v)
continue;
if (!strcmp(cn->key, "host_list")) {
*passes = 0;
if (cn->v->type == DM_CFG_EMPTY_ARRAY)
continue;
for (cv = cn->v; cv; cv = cv->next) {
if (cv->type != DM_CFG_STRING) {
log_error("Invalid hostname string "
"for tag %s", cn->key);
return 0;
}
if (!strcmp(cv->v.str, cmd->hostname)) {
*passes = 1;
return 1;
}
}
}
if (!strcmp(cn->key, "host_filter")) {
log_error("host_filter not supported yet");
return 0;
}
}
return 1;
}
static int _init_tags(struct cmd_context *cmd, struct dm_config_tree *cft)
{
const struct dm_config_node *tn, *cn;
const char *tag;
int passes;
if (!(tn = find_config_tree_node(cmd, tags_CFG_SECTION)) || !tn->child)
return 1;
/* NB hosttags 0 when already 1 intentionally does not delete the tag */
if (!cmd->hosttags && find_config_tree_bool(cmd, tags_hosttags_CFG)) {
/* FIXME Strip out invalid chars: only A-Za-z0-9_+.- */
if (!_set_tag(cmd, cmd->hostname))
return_0;
cmd->hosttags = 1;
}
for (cn = tn->child; cn; cn = cn->sib) {
if (cn->v)
continue;
tag = cn->key;
if (*tag == '@')
tag++;
if (!validate_name(tag)) {
log_error("Invalid tag in config file: %s", cn->key);
return 0;
}
if (cn->child) {
passes = 0;
if (!_check_host_filters(cmd, cn->child, &passes))
return_0;
if (!passes)
continue;
}
if (!_set_tag(cmd, tag))
return_0;
}
return 1;
}
static int _load_config_file(struct cmd_context *cmd, const char *tag)
{
static char config_file[PATH_MAX] = "";
const char *filler = "";
struct stat info;
struct config_tree_list *cfl;
if (*tag)
filler = "_";
if (dm_snprintf(config_file, sizeof(config_file), "%s/lvm%s%s.conf",
cmd->system_dir, filler, tag) < 0) {
log_error("LVM_SYSTEM_DIR or tag was too long");
return 0;
}
if (!(cfl = dm_pool_alloc(cmd->libmem, sizeof(*cfl)))) {
log_error("config_tree_list allocation failed");
return 0;
}
if (!(cfl->cft = config_file_open(config_file, 0))) {
log_error("config_tree allocation failed");
return 0;
}
/* Is there a config file? */
if (stat(config_file, &info) == -1) {
if (errno == ENOENT) {
dm_list_add(&cmd->config_files, &cfl->list);
goto out;
}
log_sys_error("stat", config_file);
config_file_destroy(cfl->cft);
return 0;
}
log_very_verbose("Loading config file: %s", config_file);
if (!config_file_read(cfl->cft)) {
log_error("Failed to load config file %s", config_file);
config_file_destroy(cfl->cft);
return 0;
}
dm_list_add(&cmd->config_files, &cfl->list);
out:
if (*tag) {
if (!_init_tags(cmd, cfl->cft))
return_0;
} else
/* Use temporary copy of lvm.conf while loading other files */
cmd->cft = cfl->cft;
return 1;
}
/* Find and read first config file */
static int _init_lvm_conf(struct cmd_context *cmd)
{
/* No config file if LVM_SYSTEM_DIR is empty */
if (!*cmd->system_dir) {
if (!(cmd->cft = config_file_open(NULL, 0))) {
log_error("Failed to create config tree");
return 0;
}
return 1;
}
if (!_load_config_file(cmd, ""))
return_0;
return 1;
}
/* Read any additional config files */
static int _init_tag_configs(struct cmd_context *cmd)
{
struct str_list *sl;
/* Tag list may grow while inside this loop */
dm_list_iterate_items(sl, &cmd->tags) {
if (!_load_config_file(cmd, sl->str))
return_0;
}
return 1;
}
static struct dm_config_tree *_merge_config_files(struct cmd_context *cmd, struct dm_config_tree *cft)
{
struct config_tree_list *cfl;
/* Replace temporary duplicate copy of lvm.conf */
if (cft->root) {
if (!(cft = config_file_open(NULL, 0))) {
log_error("Failed to create config tree");
return 0;
}
}
dm_list_iterate_items(cfl, &cmd->config_files) {
/* Merge all config trees into cmd->cft using merge/tag rules */
if (!merge_config_tree(cmd, cft, cfl->cft))
return_0;
}
return cft;
}
static void _destroy_tags(struct cmd_context *cmd)
{
struct dm_list *slh, *slht;
dm_list_iterate_safe(slh, slht, &cmd->tags) {
dm_list_del(slh);
}
}
int config_files_changed(struct cmd_context *cmd)
{
struct config_tree_list *cfl;
dm_list_iterate_items(cfl, &cmd->config_files) {
if (config_file_changed(cfl->cft))
return 1;
}
return 0;
}
/*
* Returns cmdline config_tree that overrides all others, if present.
*/
static struct dm_config_tree *_destroy_tag_configs(struct cmd_context *cmd)
{
struct config_tree_list *cfl;
struct dm_config_tree *cft_cmdline = NULL, *cft;
cft = dm_config_remove_cascaded_tree(cmd->cft);
if (cft) {
cft_cmdline = cmd->cft;
cmd->cft = cft;
}
dm_list_iterate_items(cfl, &cmd->config_files) {
if (cfl->cft == cmd->cft)
cmd->cft = NULL;
config_file_destroy(cfl->cft);
}
if (cmd->cft) {
config_file_destroy(cmd->cft);
cmd->cft = NULL;
}
dm_list_init(&cmd->config_files);
return cft_cmdline;
}
static int _init_dev_cache(struct cmd_context *cmd)
{
const struct dm_config_node *cn;
const struct dm_config_value *cv;
size_t len, udev_dir_len = strlen(DM_UDEV_DEV_DIR);
int len_diff;
int device_list_from_udev;
init_dev_disable_after_error_count(
find_config_tree_int(cmd, devices_disable_after_error_count_CFG));
if (!dev_cache_init(cmd))
return_0;
/*
* Override existing config and hardcode device_list_from_udev = 0 if:
* - udev is not running
* - udev is disabled using DM_DISABLE_UDEV environment variable
*/
if (_check_disable_udev("obtain device list by scanning device directory"))
device_list_from_udev = 0;
else
device_list_from_udev = udev_is_running() ?
find_config_tree_bool(cmd, devices_obtain_device_list_from_udev_CFG) : 0;
init_obtain_device_list_from_udev(device_list_from_udev);
if (!(cn = find_config_tree_node(cmd, devices_scan_CFG))) {
if (!dev_cache_add_dir("/dev")) {
log_error("Failed to add /dev to internal "
"device cache");
return 0;
}
log_verbose("device/scan not in config file: "
"Defaulting to /dev");
return 1;
}
for (cv = cn->v; cv; cv = cv->next) {
if (cv->type != DM_CFG_STRING) {
log_error("Invalid string in config file: "
"devices/scan");
return 0;
}
if (device_list_from_udev) {
len = strlen(cv->v.str);
/*
* DM_UDEV_DEV_DIR always has '/' at its end.
* If the item in the conf does not have it, be sure
* to make the right comparison without the '/' char!
*/
len_diff = len && cv->v.str[len - 1] != '/' ?
udev_dir_len - 1 != len :
udev_dir_len != len;
if (len_diff || strncmp(DM_UDEV_DEV_DIR, cv->v.str, len)) {
log_very_verbose("Non standard udev dir %s, resetting "
"devices/obtain_device_list_from_udev.",
cv->v.str);
device_list_from_udev = 0;
init_obtain_device_list_from_udev(0);
}
}
if (!dev_cache_add_dir(cv->v.str)) {
log_error("Failed to add %s to internal device cache",
cv->v.str);
return 0;
}
}
if (!(cn = find_config_tree_node(cmd, devices_loopfiles_CFG)))
return 1;
for (cv = cn->v; cv; cv = cv->next) {
if (cv->type != DM_CFG_STRING) {
log_error("Invalid string in config file: "
"devices/loopfiles");
return 0;
}
if (!dev_cache_add_loopfile(cv->v.str)) {
log_error("Failed to add loopfile %s to internal "
"device cache", cv->v.str);
return 0;
}
}
return 1;
}
#define MAX_FILTERS 5
static struct dev_filter *_init_filter_components(struct cmd_context *cmd)
{
int nr_filt = 0;
const struct dm_config_node *cn;
struct dev_filter *filters[MAX_FILTERS] = { 0 };
struct dev_filter *composite;
/*
* Filters listed in order: top one gets applied first.
* Failure to initialise some filters is not fatal.
* Update MAX_FILTERS definition above when adding new filters.
*/
/*
* sysfs filter. Only available on 2.6 kernels. Non-critical.
* Listed first because it's very efficient at eliminating
* unavailable devices.
*/
if (find_config_tree_bool(cmd, devices_sysfs_scan_CFG)) {
if ((filters[nr_filt] = sysfs_filter_create(cmd->sysfs_dir)))
nr_filt++;
}
/* regex filter. Optional. */
if (!(cn = find_config_tree_node(cmd, devices_filter_CFG)))
log_very_verbose("devices/filter not found in config file: "
"no regex filter installed");
else if (!(filters[nr_filt] = regex_filter_create(cn->v))) {
log_error("Failed to create regex device filter");
goto bad;
} else
nr_filt++;
/* device type filter. Required. */
cn = find_config_tree_node(cmd, devices_types_CFG);
if (!(filters[nr_filt] = lvm_type_filter_create(cmd->proc_dir, cn))) {
log_error("Failed to create lvm type filter");
goto bad;
}
nr_filt++;
/* md component filter. Optional, non-critical. */
if (find_config_tree_bool(cmd, devices_md_component_detection_CFG)) {
init_md_filtering(1);
if ((filters[nr_filt] = md_filter_create()))
nr_filt++;
}
/* mpath component filter. Optional, non-critical. */
if (find_config_tree_bool(cmd, devices_multipath_component_detection_CFG)) {
if ((filters[nr_filt] = mpath_filter_create(cmd->sysfs_dir)))
nr_filt++;
}
/* Only build a composite filter if we really need it. */
if (nr_filt == 1)
return filters[0];
if (!(composite = composite_filter_create(nr_filt, filters)))
goto_bad;
return composite;
bad:
while (--nr_filt >= 0)
filters[nr_filt]->destroy(filters[nr_filt]);
return NULL;
}
static int _init_filters(struct cmd_context *cmd, unsigned load_persistent_cache)
{
static char cache_file[PATH_MAX];
const char *dev_cache = NULL, *cache_dir, *cache_file_prefix;
struct dev_filter *f3 = NULL, *f4 = NULL, *toplevel_components[2] = { 0 };
struct stat st;
const struct dm_config_node *cn;
cmd->dump_filter = 0;
if (!(f3 = _init_filter_components(cmd)))
goto_bad;
init_ignore_suspended_devices(find_config_tree_bool(cmd, devices_ignore_suspended_devices_CFG));
/*
* If 'cache_dir' or 'cache_file_prefix' is set, ignore 'cache'.
*/
cache_dir = find_config_tree_str(cmd, devices_cache_dir_CFG);
cache_file_prefix = find_config_tree_str(cmd, devices_cache_file_prefix_CFG);
if (cache_dir || cache_file_prefix) {
if (dm_snprintf(cache_file, sizeof(cache_file),
"%s%s%s/%s.cache",
cache_dir ? "" : cmd->system_dir,
cache_dir ? "" : "/",
cache_dir ? : DEFAULT_CACHE_SUBDIR,
cache_file_prefix ? : DEFAULT_CACHE_FILE_PREFIX) < 0) {
log_error("Persistent cache filename too long.");
goto bad;
}
} else if (!(dev_cache = find_config_tree_str(cmd, devices_cache_CFG)) &&
(dm_snprintf(cache_file, sizeof(cache_file),
"%s/%s/%s.cache",
cmd->system_dir, DEFAULT_CACHE_SUBDIR,
DEFAULT_CACHE_FILE_PREFIX) < 0)) {
log_error("Persistent cache filename too long.");
goto bad;
}
if (!dev_cache)
dev_cache = cache_file;
if (!(f4 = persistent_filter_create(f3, dev_cache))) {
log_verbose("Failed to create persistent device filter.");
f3->destroy(f3);
return_0;
}
/* Should we ever dump persistent filter state? */
if (find_config_tree_bool(cmd, devices_write_cache_state_CFG))
cmd->dump_filter = 1;
if (!*cmd->system_dir)
cmd->dump_filter = 0;
/*
* Only load persistent filter device cache on startup if it is newer
* than the config file and this is not a long-lived process.
*/
if (load_persistent_cache && !cmd->is_long_lived &&
!stat(dev_cache, &st) &&
(st.st_ctime > config_file_timestamp(cmd->cft)) &&
!persistent_filter_load(f4, NULL))
log_verbose("Failed to load existing device cache from %s",
dev_cache);
if (!(cn = find_config_tree_node(cmd, devices_global_filter_CFG))) {
cmd->filter = f4;
} else if (!(cmd->lvmetad_filter = regex_filter_create(cn->v)))
goto_bad;
else {
toplevel_components[0] = cmd->lvmetad_filter;
toplevel_components[1] = f4;
if (!(cmd->filter = composite_filter_create(2, toplevel_components)))
goto_bad;
}
return 1;
bad:
if (f3)
f3->destroy(f3);
if (f4)
f4->destroy(f4);
if (toplevel_components[0])
toplevel_components[0]->destroy(toplevel_components[0]);
return 0;
}
struct format_type *get_format_by_name(struct cmd_context *cmd, const char *format)
{
struct format_type *fmt;
dm_list_iterate_items(fmt, &cmd->formats)
if (!strcasecmp(fmt->name, format) ||
!strcasecmp(fmt->name + 3, format) ||
(fmt->alias && !strcasecmp(fmt->alias, format)))
return fmt;
return NULL;
}
static int _init_formats(struct cmd_context *cmd)
{
const char *format;
struct format_type *fmt;
#ifdef HAVE_LIBDL
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() &&
(cn = find_config_tree_node(cmd, global_format_libraries_CFG))) {
const struct dm_config_value *cv;
struct format_type *(*init_format_fn) (struct cmd_context *);
void *lib;
for (cv = cn->v; cv; cv = cv->next) {
if (cv->type != DM_CFG_STRING) {
log_error("Invalid string in config file: "
"global/format_libraries");
return 0;
}
if (!(lib = load_shared_library(cmd, cv->v.str,
"format", 0)))
return_0;
if (!(init_format_fn = dlsym(lib, "init_format"))) {
log_error("Shared library %s does not contain "
"format functions", cv->v.str);
dlclose(lib);
return 0;
}
if (!(fmt = init_format_fn(cmd))) {
dlclose(lib);
return_0;
}
fmt->library = lib;
dm_list_add(&cmd->formats, &fmt->list);
}
}
#endif
if (!(fmt = create_text_format(cmd)))
return 0;
fmt->library = NULL;
dm_list_add(&cmd->formats, &fmt->list);
cmd->fmt_backup = fmt;
format = find_config_tree_str(cmd, global_format_CFG);
dm_list_iterate_items(fmt, &cmd->formats) {
if (!strcasecmp(fmt->name, format) ||
(fmt->alias && !strcasecmp(fmt->alias, format))) {
cmd->default_settings.fmt_name = fmt->name;
cmd->fmt = fmt;
return 1;
}
}
log_error("_init_formats: Default format (%s) not found", format);
return 0;
}
int init_lvmcache_orphans(struct cmd_context *cmd)
{
struct format_type *fmt;
dm_list_iterate_items(fmt, &cmd->formats)
if (!lvmcache_add_orphan_vginfo(fmt->orphan_vg_name, fmt))
return_0;
return 1;
}
struct segtype_library {
struct cmd_context *cmd;
void *lib;
const char *libname;
};
int lvm_register_segtype(struct segtype_library *seglib,
struct segment_type *segtype)
{
struct segment_type *segtype2;
segtype->library = seglib->lib;
segtype->cmd = seglib->cmd;
dm_list_iterate_items(segtype2, &seglib->cmd->segtypes) {
if (strcmp(segtype2->name, segtype->name))
continue;
log_error("Duplicate segment type %s: "
"unloading shared library %s",
segtype->name, seglib->libname);
segtype->ops->destroy(segtype);
return 0;
}
dm_list_add(&seglib->cmd->segtypes, &segtype->list);
return 1;
}
static int _init_single_segtype(struct cmd_context *cmd,
struct segtype_library *seglib)
{
struct segment_type *(*init_segtype_fn) (struct cmd_context *);
struct segment_type *segtype;
if (!(init_segtype_fn = dlsym(seglib->lib, "init_segtype"))) {
log_error("Shared library %s does not contain segment type "
"functions", seglib->libname);
return 0;
}
if (!(segtype = init_segtype_fn(seglib->cmd)))
return_0;
return lvm_register_segtype(seglib, segtype);
}
static int _init_segtypes(struct cmd_context *cmd)
{
int i;
struct segment_type *segtype;
struct segtype_library seglib = { .cmd = cmd, .lib = NULL };
struct segment_type *(*init_segtype_array[])(struct cmd_context *cmd) = {
init_striped_segtype,
init_zero_segtype,
init_error_segtype,
init_free_segtype,
#ifdef SNAPSHOT_INTERNAL
init_snapshot_segtype,
#endif
#ifdef MIRRORED_INTERNAL
init_mirrored_segtype,
#endif
NULL
};
#ifdef HAVE_LIBDL
const struct dm_config_node *cn;
#endif
for (i = 0; init_segtype_array[i]; i++) {
if (!(segtype = init_segtype_array[i](cmd)))
return 0;
segtype->library = NULL;
dm_list_add(&cmd->segtypes, &segtype->list);
}
#ifdef REPLICATOR_INTERNAL
if (!init_replicator_segtype(cmd, &seglib))
return 0;
#endif
#ifdef RAID_INTERNAL
if (!init_raid_segtypes(cmd, &seglib))
return 0;
#endif
#ifdef THIN_INTERNAL
if (!init_thin_segtypes(cmd, &seglib))
return 0;
#endif
#ifdef HAVE_LIBDL
/* Load any formats in shared libs unless static */
if (!is_static() &&
(cn = find_config_tree_node(cmd, global_segment_libraries_CFG))) {
const struct dm_config_value *cv;
int (*init_multiple_segtypes_fn) (struct cmd_context *,
struct segtype_library *);
for (cv = cn->v; cv; cv = cv->next) {
if (cv->type != DM_CFG_STRING) {
log_error("Invalid string in config file: "
"global/segment_libraries");
return 0;
}
seglib.libname = cv->v.str;
if (!(seglib.lib = load_shared_library(cmd,
seglib.libname,
"segment type", 0)))
return_0;
if ((init_multiple_segtypes_fn =
dlsym(seglib.lib, "init_multiple_segtypes"))) {
if (dlsym(seglib.lib, "init_segtype"))
log_warn("WARNING: Shared lib %s has "
"conflicting init fns. Using"
" init_multiple_segtypes().",
seglib.libname);
} else
init_multiple_segtypes_fn =
_init_single_segtype;
if (!init_multiple_segtypes_fn(cmd, &seglib)) {
struct dm_list *sgtl, *tmp;
log_error("init_multiple_segtypes() failed: "
"Unloading shared library %s",
seglib.libname);
dm_list_iterate_safe(sgtl, tmp, &cmd->segtypes) {
segtype = dm_list_item(sgtl, struct segment_type);
if (segtype->library == seglib.lib) {
dm_list_del(&segtype->list);
segtype->ops->destroy(segtype);
}
}
dlclose(seglib.lib);
return_0;
}
}
}
#endif
return 1;
}
static int _init_hostname(struct cmd_context *cmd)
{
struct utsname uts;
if (uname(&uts)) {
log_sys_error("uname", "_init_hostname");
return 0;
}
if (!(cmd->hostname = dm_pool_strdup(cmd->libmem, uts.nodename))) {
log_error("_init_hostname: dm_pool_strdup failed");
return 0;
}
if (!(cmd->kernel_vsn = dm_pool_strdup(cmd->libmem, uts.release))) {
log_error("_init_hostname: dm_pool_strdup kernel_vsn failed");
return 0;
}
return 1;
}
static int _init_backup(struct cmd_context *cmd)
{
static char default_dir[PATH_MAX];
uint32_t days, min;
const char *dir;
if (!cmd->system_dir[0]) {
log_warn("WARNING: Metadata changes will NOT be backed up");
backup_init(cmd, "", 0);
archive_init(cmd, "", 0, 0, 0);
return 1;
}
/* set up archiving */
cmd->default_settings.archive =
find_config_tree_bool(cmd, backup_archive_CFG);
days = (uint32_t) find_config_tree_int(cmd, backup_retain_days_CFG);
min = (uint32_t) find_config_tree_int(cmd, backup_retain_min_CFG);
if (dm_snprintf
(default_dir, sizeof(default_dir), "%s/%s", cmd->system_dir,
DEFAULT_ARCHIVE_SUBDIR) == -1) {
log_error("Couldn't create default archive path '%s/%s'.",
cmd->system_dir, DEFAULT_ARCHIVE_SUBDIR);
return 0;
}
if (!(dir = find_config_tree_str(cmd, backup_archive_dir_CFG)))
dir = default_dir;
if (!archive_init(cmd, dir, days, min,
cmd->default_settings.archive)) {
log_debug("archive_init failed.");
return 0;
}
/* set up the backup */
cmd->default_settings.backup = find_config_tree_bool(cmd, backup_backup_CFG);
if (dm_snprintf
(default_dir, sizeof(default_dir), "%s/%s", cmd->system_dir,
DEFAULT_BACKUP_SUBDIR) == -1) {
log_error("Couldn't create default backup path '%s/%s'.",
cmd->system_dir, DEFAULT_BACKUP_SUBDIR);
return 0;
}
if (!(dir = find_config_tree_str(cmd, backup_backup_dir_CFG)))
dir = default_dir;
if (!backup_init(cmd, dir, cmd->default_settings.backup)) {
log_debug("backup_init failed.");
return 0;
}
return 1;
}
static void _init_rand(struct cmd_context *cmd)
{
if (read_urandom(&cmd->rand_seed, sizeof(cmd->rand_seed))) {
reset_lvm_errno(1);
return;
}
cmd->rand_seed = (unsigned) time(NULL) + (unsigned) getpid();
reset_lvm_errno(1);
}
static void _init_globals(struct cmd_context *cmd)
{
init_full_scan_done(0);
init_mirror_in_sync(0);
}
/*
* Close and reopen stream on file descriptor fd.
*/
static int _reopen_stream(FILE *stream, int fd, const char *mode, const char *name, FILE **new_stream)
{
int fd_copy, new_fd;
if ((fd_copy = dup(fd)) < 0) {
log_sys_error("dup", name);
return 0;
}
if (fclose(stream))
log_sys_error("fclose", name);
if ((new_fd = dup2(fd_copy, fd)) < 0)
log_sys_error("dup2", name);
else if (new_fd != fd)
log_error("dup2(%d, %d) returned %d", fd_copy, fd, new_fd);
if (close(fd_copy) < 0)
log_sys_error("close", name);
if (!(*new_stream = fdopen(fd, mode))) {
log_sys_error("fdopen", name);
return 0;
}
return 1;
}
/* Entry point */
struct cmd_context *create_toolcontext(unsigned is_long_lived,
const char *system_dir,
unsigned set_buffering,
unsigned threaded)
{
struct cmd_context *cmd;
FILE *new_stream;
#ifdef M_MMAP_MAX
mallopt(M_MMAP_MAX, 0);
#endif
if (!setlocale(LC_ALL, ""))
log_very_verbose("setlocale failed");
#ifdef INTL_PACKAGE
bindtextdomain(INTL_PACKAGE, LOCALEDIR);
#endif
init_syslog(DEFAULT_LOG_FACILITY);
if (!(cmd = dm_zalloc(sizeof(*cmd)))) {
log_error("Failed to allocate command context");
return NULL;
}
cmd->is_long_lived = is_long_lived;
cmd->threaded = threaded ? 1 : 0;
cmd->handles_missing_pvs = 0;
cmd->handles_unknown_segments = 0;
cmd->independent_metadata_areas = 0;
cmd->hosttags = 0;
dm_list_init(&cmd->arg_value_groups);
dm_list_init(&cmd->formats);
dm_list_init(&cmd->segtypes);
dm_list_init(&cmd->tags);
dm_list_init(&cmd->config_files);
label_init();
/* FIXME Make this configurable? */
reset_lvm_errno(1);
#ifndef VALGRIND_POOL
/* Set in/out stream buffering before glibc */
if (set_buffering) {
/* Allocate 2 buffers */
if (!(cmd->linebuffer = dm_malloc(2 * linebuffer_size))) {
log_error("Failed to allocate line buffer.");
goto out;
}
if (is_valid_fd(STDIN_FILENO)) {
if (!_reopen_stream(stdin, STDIN_FILENO, "r", "stdin", &new_stream))
goto_out;
stdin = new_stream;
if (setvbuf(stdin, cmd->linebuffer, _IOLBF, linebuffer_size)) {
log_sys_error("setvbuf", "");
goto out;
}
}
if (is_valid_fd(STDOUT_FILENO)) {
if (!_reopen_stream(stdout, STDOUT_FILENO, "w", "stdout", &new_stream))
goto_out;
stdout = new_stream;
if (setvbuf(stdout, cmd->linebuffer + linebuffer_size,
_IOLBF, linebuffer_size)) {
log_sys_error("setvbuf", "");
goto out;
}
}
/* Buffers are used for lines without '\n' */
} else
/* Without buffering, must not use stdin/stdout */
init_silent(1);
#endif
/*
* Environment variable LVM_SYSTEM_DIR overrides this below.
*/
if (system_dir)
strncpy(cmd->system_dir, system_dir, sizeof(cmd->system_dir) - 1);
else
strcpy(cmd->system_dir, DEFAULT_SYS_DIR);
if (!_get_env_vars(cmd))
goto_out;
/* Create system directory if it doesn't already exist */
if (*cmd->system_dir && !dm_create_dir(cmd->system_dir)) {
log_error("Failed to create LVM2 system dir for metadata backups, config "
"files and internal cache.");
log_error("Set environment variable LVM_SYSTEM_DIR to alternative location "
"or empty string.");
goto out;
}
if (!(cmd->libmem = dm_pool_create("library", 4 * 1024))) {
log_error("Library memory pool creation failed");
goto out;
}
if (!_init_lvm_conf(cmd))
goto_out;
_init_logging(cmd);
if (!_init_hostname(cmd))
goto_out;
if (!_init_tags(cmd, cmd->cft))
goto_out;
if (!_init_tag_configs(cmd))
goto_out;
if (!(cmd->cft = _merge_config_files(cmd, cmd->cft)))
goto_out;
if (!_process_config(cmd))
goto_out;
if (!_init_dev_cache(cmd))
goto_out;
if (!_init_filters(cmd, 1))
goto_out;
if (!(cmd->mem = dm_pool_create("command", 4 * 1024))) {
log_error("Command memory pool creation failed");
goto out;
}
memlock_init(cmd);
if (!_init_formats(cmd))
goto_out;
if (!init_lvmcache_orphans(cmd))
goto_out;
if (!_init_segtypes(cmd))
goto_out;
if (!_init_backup(cmd))
goto_out;
_init_rand(cmd);
_init_globals(cmd);
cmd->default_settings.cache_vgmetadata = 1;
cmd->current_settings = cmd->default_settings;
cmd->config_valid = 1;
out:
if (cmd->config_valid != 1) {
destroy_toolcontext(cmd);
cmd = NULL;
}
return cmd;
}
static void _destroy_formats(struct cmd_context *cmd, struct dm_list *formats)
{
struct dm_list *fmtl, *tmp;
struct format_type *fmt;
void *lib;
dm_list_iterate_safe(fmtl, tmp, formats) {
fmt = dm_list_item(fmtl, struct format_type);
dm_list_del(&fmt->list);
lib = fmt->library;
fmt->ops->destroy(fmt);
#ifdef HAVE_LIBDL
if (lib)
dlclose(lib);
#endif
}
cmd->independent_metadata_areas = 0;
}
static void _destroy_segtypes(struct dm_list *segtypes)
{
struct dm_list *sgtl, *tmp;
struct segment_type *segtype;
void *lib;
dm_list_iterate_safe(sgtl, tmp, segtypes) {
segtype = dm_list_item(sgtl, struct segment_type);
dm_list_del(&segtype->list);
lib = segtype->library;
segtype->ops->destroy(segtype);
#ifdef HAVE_LIBDL
/*
* If no segtypes remain from this library, close it.
*/
if (lib) {
struct segment_type *segtype2;
dm_list_iterate_items(segtype2, segtypes)
if (segtype2->library == lib)
goto skip_dlclose;
dlclose(lib);
skip_dlclose:
;
}
#endif
}
}
int refresh_filters(struct cmd_context *cmd)
{
int r, saved_ignore_suspended_devices = ignore_suspended_devices();
if (cmd->filter) {
cmd->filter->destroy(cmd->filter);
cmd->filter = NULL;
}
cmd->lvmetad_filter = NULL;
if (!(r = _init_filters(cmd, 0)))
stack;
/*
* During repair code must not reset suspended flag.
*/
init_ignore_suspended_devices(saved_ignore_suspended_devices);
return r;
}
int refresh_toolcontext(struct cmd_context *cmd)
{
struct dm_config_tree *cft_cmdline, *cft_tmp;
log_verbose("Reloading config files");
/*
* Don't update the persistent filter cache as we will
* perform a full rescan.
*/
activation_release();
lvmcache_destroy(cmd, 0);
label_exit();
_destroy_segtypes(&cmd->segtypes);
_destroy_formats(cmd, &cmd->formats);
if (cmd->filter) {
cmd->filter->destroy(cmd->filter);
cmd->filter = NULL;
}
dev_cache_exit();
_destroy_tags(cmd);
cft_cmdline = _destroy_tag_configs(cmd);
cmd->config_valid = 0;
cmd->hosttags = 0;
if (!_init_lvm_conf(cmd))
return 0;
/* Temporary duplicate cft pointer holding lvm.conf - replaced later */
cft_tmp = cmd->cft;
if (cft_cmdline)
cmd->cft = dm_config_insert_cascaded_tree(cft_cmdline, cft_tmp);
/* Uses cmd->cft i.e. cft_cmdline + lvm.conf */
_init_logging(cmd);
/* Init tags from lvm.conf. */
if (!_init_tags(cmd, cft_tmp))
return 0;
/* Doesn't change cmd->cft */
if (!_init_tag_configs(cmd))
return 0;
/* Merge all the tag config files with lvm.conf, returning a
* fresh cft pointer in place of cft_tmp. */
if (!(cmd->cft = _merge_config_files(cmd, cft_tmp)))
return 0;
/* Finally we can make the proper, fully-merged, cmd->cft */
if (cft_cmdline)
cmd->cft = dm_config_insert_cascaded_tree(cft_cmdline, cmd->cft);
if (!_process_config(cmd))
return 0;
if (!_init_dev_cache(cmd))
return 0;
if (!_init_filters(cmd, 0))
return 0;
if (!_init_formats(cmd))
return 0;
if (!init_lvmcache_orphans(cmd))
return 0;
if (!_init_segtypes(cmd))
return 0;
if (!_init_backup(cmd))
return 0;
cmd->config_valid = 1;
reset_lvm_errno(1);
return 1;
}
void destroy_toolcontext(struct cmd_context *cmd)
{
struct dm_config_tree *cft_cmdline;
FILE *new_stream;
if (cmd->dump_filter)
persistent_filter_dump(cmd->filter, 1);
archive_exit(cmd);
backup_exit(cmd);
lvmcache_destroy(cmd, 0);
label_exit();
_destroy_segtypes(&cmd->segtypes);
_destroy_formats(cmd, &cmd->formats);
if (cmd->filter)
cmd->filter->destroy(cmd->filter);
if (cmd->mem)
dm_pool_destroy(cmd->mem);
dev_cache_exit();
_destroy_tags(cmd);
if ((cft_cmdline = _destroy_tag_configs(cmd)))
dm_config_destroy(cft_cmdline);
if (cmd->libmem)
dm_pool_destroy(cmd->libmem);
#ifndef VALGRIND_POOL
if (cmd->linebuffer) {
/* Reset stream buffering to defaults */
if (is_valid_fd(STDIN_FILENO)) {
if (_reopen_stream(stdin, STDIN_FILENO, "r", "stdin", &new_stream)) {
stdin = new_stream;
setlinebuf(stdin);
} else
cmd->linebuffer = NULL; /* Leave buffer in place (deliberate leak) */
}
if (is_valid_fd(STDOUT_FILENO)) {
if (_reopen_stream(stdout, STDOUT_FILENO, "w", "stdout", &new_stream)) {
stdout = new_stream;
setlinebuf(stdout);
} else
cmd->linebuffer = NULL; /* Leave buffer in place (deliberate leak) */
}
dm_free(cmd->linebuffer);
}
#endif
if (cmd->cft_def_hash)
dm_hash_destroy(cmd->cft_def_hash);
dm_free(cmd);
lvmetad_release_token();
lvmetad_disconnect();
release_log_memory();
activation_exit();
reset_log_duplicated();
fin_log();
fin_syslog();
reset_lvm_errno(0);
}
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