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mirror of git://sourceware.org/git/lvm2.git synced 2024-12-22 17:35:59 +03:00
lvm2/tools/tools.h
David Teigland 3321a669d8 Allow system.devices to be automatically created on first boot
An OS installer can create system.devices for the system and
disks, but an OS image cannot create the system-specific
system.devices.  The OS image can instead configure the
image so that lvm will create system.devices on first boot.

Image preparation steps to enable auto creation of system.devices:
- create empty file /etc/lvm/devices/auto-import-rootvg
- remove any existing /etc/lvm/devices/system.devices
- enable lvm-devices-import.path
- enable lvm-devices-import.service

On first boot of the prepared image:
- udev triggers vgchange -aay --autoactivation event <rootvg>
- vgchange activates LVs in the root VG
- vgchange finds the file /etc/lvm/devices/auto-import-rootvg,
  and no /etc/lvm/devices/system.devices, so it creates
  /run/lvm/lvm-devices-import
- lvm-devices-import.path is run when /run/lvm/lvm-devices-import
  appears, and triggers lvm-devices-import.service
- lvm-devices-import.service runs vgimportdevices --rootvg --auto
- vgimportdevices finds /etc/lvm/devices/auto-import-rootvg,
  and no system.devices, so it creates system.devices containing
  PVs in the root VG, and removes /etc/lvm/devices/auto-import-rootvg
  and /run/lvm/lvm-devices-import

Run directly, vgimportdevices --rootvg (without --auto), will create
a new system.devices for the root VG, or will add devices for the
root VG to an existing system.devices.

(cherry picked from commit c609dedc2f)
2024-05-22 10:16:55 +02:00

241 lines
12 KiB
C

/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2015 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_TOOLS_H
#define _LVM_TOOLS_H
#include "tools/tool.h"
#include "lib/log/lvm-logging.h"
#include "lib/activate/activate.h"
#include "lib/format_text/archiver.h"
#include "lib/cache/lvmcache.h"
#include "lib/locking/lvmlockd.h"
#include "lvm-version.h"
#include "lib/config/config.h"
#include "lib/config/defaults.h"
#include "lib/device/dev-cache.h"
#include "lib/device/device.h"
#include "lib/device/device_id.h"
#include "lib/display/display.h"
#include "errors.h"
#include "lib/metadata/metadata-exported.h"
#include "lib/locking/locking.h"
#include "lib/misc/lvm-exec.h"
#include "lib/misc/lvm-file.h"
#include "lib/misc/lvm-signal.h"
#include "lib/misc/lvm-string.h"
#include "lib/metadata/segtype.h"
#include "lib/datastruct/str_list.h"
#include "lib/commands/toolcontext.h"
#include "toollib.h"
#include "lib/notify/lvmnotify.h"
#include "lib/label/hints.h"
#include <ctype.h>
#include <sys/types.h>
#define CMD_LEN 256
#define MAX_ARGS 64
#include "command_enums.h"
/* command functions */
#define xx(a, b...) int a(struct cmd_context *cmd, int argc, char **argv);
#include "commands.h"
#undef xx
#define ARG_COUNTABLE 0x00000001 /* E.g. -vvvv */
#define ARG_GROUPABLE 0x00000002 /* E.g. --addtag */
#define ARG_NONINTERACTIVE 0x00000004 /* only for use in noninteractive mode */
struct arg_values {
char *value;
int32_t i_value;
uint32_t ui_value;
int64_t i64_value;
uint64_t ui64_value;
sign_t sign;
percent_type_t percent;
uint16_t count;
};
struct arg_value_group_list {
struct dm_list list;
uint16_t prio;
struct arg_values arg_values[];
};
void usage(const char *name);
/* the argument verify/normalise functions */
int yes_no_arg(struct cmd_context *cmd, struct arg_values *av);
int activation_arg(struct cmd_context *cmd, struct arg_values *av);
int cachemetadataformat_arg(struct cmd_context *cmd, struct arg_values *av);
int cachemode_arg(struct cmd_context *cmd, struct arg_values *av);
int discards_arg(struct cmd_context *cmd, struct arg_values *av);
int mirrorlog_arg(struct cmd_context *cmd, struct arg_values *av);
int size_kb_arg(struct cmd_context *cmd, struct arg_values *av);
int ssize_kb_arg(struct cmd_context *cmd, struct arg_values *av);
int size_mb_arg(struct cmd_context *cmd, struct arg_values *av);
int ssize_mb_arg(struct cmd_context *cmd, struct arg_values *av);
int psize_mb_arg(struct cmd_context *cmd, struct arg_values *av);
int nsize_mb_arg(struct cmd_context *cmd, struct arg_values *av);
int int_arg(struct cmd_context *cmd, struct arg_values *av);
int uint32_arg(struct cmd_context *cmd, struct arg_values *av);
int int_arg_with_sign(struct cmd_context *cmd, struct arg_values *av);
int int_arg_with_plus(struct cmd_context *cmd, struct arg_values *av);
int extents_arg(struct cmd_context *cmd, struct arg_values *av);
int sextents_arg(struct cmd_context *cmd, struct arg_values *av);
int pextents_arg(struct cmd_context *cmd, struct arg_values *av);
int nextents_arg(struct cmd_context *cmd, struct arg_values *av);
int major_arg(struct cmd_context *cmd, struct arg_values *av);
int minor_arg(struct cmd_context *cmd, struct arg_values *av);
int string_arg(struct cmd_context *cmd, struct arg_values *av);
int tag_arg(struct cmd_context *cmd, struct arg_values *av);
int permission_arg(struct cmd_context *cmd, struct arg_values *av);
int metadatatype_arg(struct cmd_context *cmd, struct arg_values *av);
int units_arg(struct cmd_context *cmd, struct arg_values *av);
int segtype_arg(struct cmd_context *cmd, struct arg_values *av);
int alloc_arg(struct cmd_context *cmd, struct arg_values *av);
int locktype_arg(struct cmd_context *cmd, struct arg_values *av);
int readahead_arg(struct cmd_context *cmd, struct arg_values *av);
int regionsize_mb_arg(struct cmd_context *cmd, struct arg_values *av);
int vgmetadatacopies_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int pvmetadatacopies_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int metadatacopies_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int polloperation_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int writemostly_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int syncaction_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int reportformat_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int configreport_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int configtype_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int repairtype_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int dumptype_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
int headings_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av);
/* we use the enums to access the switches */
int arg_is_valid_for_command(const struct cmd_context *cmd, int a);
unsigned arg_count(const struct cmd_context *cmd, int a);
unsigned arg_is_set(const struct cmd_context *cmd, int a);
int arg_from_list_is_set(const struct cmd_context *cmd, const char *err_found, ...);
int arg_outside_list_is_set(const struct cmd_context *cmd, const char *err_found, ...);
int arg_from_list_is_negative(const struct cmd_context *cmd, const char *err_found, ...);
int arg_from_list_is_zero(const struct cmd_context *cmd, const char *err_found, ...);
const char *arg_long_option_name(int a);
const char *arg_value(const struct cmd_context *cmd, int a);
const char *arg_str_value(const struct cmd_context *cmd, int a, const char *def);
int32_t arg_int_value(const struct cmd_context *cmd, int a, const int32_t def);
int32_t first_grouped_arg_int_value(const struct cmd_context *cmd, int a, const int32_t def);
uint32_t arg_uint_value(const struct cmd_context *cmd, int a, const uint32_t def);
int64_t arg_int64_value(const struct cmd_context *cmd, int a, const int64_t def);
uint64_t arg_uint64_value(const struct cmd_context *cmd, int a, const uint64_t def);
const void *arg_ptr_value(const struct cmd_context *cmd, int a, const void *def);
sign_t arg_sign_value(const struct cmd_context *cmd, int a, const sign_t def);
percent_type_t arg_percent_value(const struct cmd_context *cmd, int a, const percent_type_t def);
int arg_count_increment(struct cmd_context *cmd, int a);
unsigned grouped_arg_count(const struct arg_values *av, int a);
unsigned grouped_arg_is_set(const struct arg_values *av, int a);
const char *grouped_arg_str_value(const struct arg_values *av, int a, const char *def);
int32_t grouped_arg_int_value(const struct arg_values *av, int a, const int32_t def);
const char *command_name(struct cmd_context *cmd);
int pvmove_poll(struct cmd_context *cmd, const char *pv_name, const char *uuid,
const char *vg_name, const char *lv_name, unsigned background);
int lvconvert_poll(struct cmd_context *cmd, struct logical_volume *lv, unsigned background);
int mirror_remove_missing(struct cmd_context *cmd,
struct logical_volume *lv, int force);
int vgchange_activate(struct cmd_context *cmd, struct volume_group *vg,
activation_change_t activate, int vg_complete_to_activate, char *root_dm_uuid);
int vgchange_background_polling(struct cmd_context *cmd, struct volume_group *vg);
int vgchange_locktype_cmd(struct cmd_context *cmd, int argc, char **argv);
int vgchange_lock_start_stop_cmd(struct cmd_context *cmd, int argc, char **argv);
int vgchange_systemid_cmd(struct cmd_context *cmd, int argc, char **argv);
const struct opt_name *get_opt_name(int opt);
const struct val_name *get_val_name(int val);
const struct lv_prop *get_lv_prop(int lvp_enum);
const struct lv_type *get_lv_type(int lvt_enum);
struct command *get_command(int cmd_enum);
int lvchange_properties_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvchange_activate_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvchange_refresh_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvchange_resync_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvchange_syncaction_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvchange_rebuild_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvchange_monitor_poll_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvchange_persistent_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_repair_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_replace_pv_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_merge_snapshot_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_split_snapshot_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_combine_split_snapshot_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_start_poll_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_pool_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_cache_with_cachevol_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_cache_with_cachepool_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_writecache_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_thin_with_external_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_thin_with_data_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_swap_pool_metadata_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_pool_or_swap_metadata_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_merge_thin_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_split_cache_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_raid_types_cmd(struct cmd_context * cmd, int argc, char **argv);
int lvconvert_split_mirror_images_cmd(struct cmd_context * cmd, int argc, char **argv);
int lvconvert_merge_mirror_images_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_change_mirrorlog_cmd(struct cmd_context * cmd, int argc, char **argv);
int lvconvert_change_region_size_cmd(struct cmd_context * cmd, int argc, char **argv);
int lvconvert_merge_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_vdopool_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_to_vdopool_param_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_integrity_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvcreate_and_attach_writecache_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvcreate_and_attach_cache_cmd(struct cmd_context *cmd, int argc, char **argv);
int pvscan_display_cmd(struct cmd_context *cmd, int argc, char **argv);
int pvscan_cache_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_writecache_attach_single(struct cmd_context *cmd,
struct logical_volume *lv,
struct processing_handle *handle);
int lvconvert_cachevol_attach_single(struct cmd_context *cmd,
struct logical_volume *lv,
struct processing_handle *handle);
int lvresize_cmd(struct cmd_context *cmd, int argc, char **argv);
int lvextend_policy_cmd(struct cmd_context *cmd, int argc, char **argv);
#endif