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lvm2/lib/display/display.c
Zdenek Kabelac 52935b5834 cache: enhance lvdisplay for cache volumes 
Better support for lvdisplay.
By default info about running (in kernel) cache status is printed.
To get 'segtype' info, user runs: 'lvdisplay -m',  example:

  --- Logical volume ---
  LV Path                /dev/vg/lvol0
  LV Name                lvol0
  VG Name                vg
  LV UUID                Y4uWuN-TBGk-duer-aPWl-yBWn-iFFR-RU1gg1
  LV Write Access        read/write
  LV Creation host, time linux, 2017-03-01 20:52:39 +0100
  LV Cache pool name     lvol2
  LV Cache origin name   lvol0_corig
  LV Status              available
  # open                 0
  LV Size                12,00 MiB
  Cache used blocks      10,42%
  Cache metadata blocks  0,49%
  Cache dirty blocks     0,00%
  Cache read hits/misses 112 / 34
  Cache wrt hits/misses  133 / 0
  Cache demotions        0
  Cache promotions       20
  Current LE             3
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0

  --- Segments ---
  Logical extents 0 to 2:
    Type		cache
    Chunk size		64,00 KiB
    Metadata format	1
    Mode		writethrough
    Policy		smq
      Setting		migration_threshold=100000
2017-03-10 19:33:01 +01:00

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/*
* 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 "metadata.h"
#include "display.h"
#include "activate.h"
#include "toolcontext.h"
#include "segtype.h"
#include "defaults.h"
#include "lvm-signal.h"
#include <stdarg.h>
static const struct {
alloc_policy_t alloc;
const char str[14]; /* must be changed when size extends 13 chars */
const char repchar;
} _policies[] = {
{
ALLOC_CONTIGUOUS, "contiguous", 'c'}, {
ALLOC_CLING, "cling", 'l'}, {
ALLOC_CLING_BY_TAGS, "cling_by_tags", 't'}, { /* Only used in log mesgs */
ALLOC_NORMAL, "normal", 'n'}, {
ALLOC_ANYWHERE, "anywhere", 'a'}, {
ALLOC_INHERIT, "inherit", 'i'}
};
static const int _num_policies = DM_ARRAY_SIZE(_policies);
char alloc_policy_char(alloc_policy_t alloc)
{
int i;
for (i = 0; i < _num_policies; i++)
if (_policies[i].alloc == alloc)
return _policies[i].repchar;
return '-';
}
const char *get_alloc_string(alloc_policy_t alloc)
{
int i;
for (i = 0; i < _num_policies; i++)
if (_policies[i].alloc == alloc)
return _policies[i].str;
return NULL;
}
alloc_policy_t get_alloc_from_string(const char *str)
{
int i;
/* cling_by_tags is part of cling */
if (!strcmp("cling_by_tags", str))
return ALLOC_CLING;
for (i = 0; i < _num_policies; i++)
if (!strcmp(_policies[i].str, str))
return _policies[i].alloc;
/* Special case for old metadata */
if (!strcmp("next free", str))
return ALLOC_NORMAL;
log_error("Unrecognised allocation policy %s", str);
return ALLOC_INVALID;
}
const char *get_lock_type_string(lock_type_t lock_type)
{
switch (lock_type) {
case LOCK_TYPE_INVALID:
return "invalid";
case LOCK_TYPE_NONE:
return "none";
case LOCK_TYPE_CLVM:
return "clvm";
case LOCK_TYPE_DLM:
return "dlm";
case LOCK_TYPE_SANLOCK:
return "sanlock";
}
return "invalid";
}
lock_type_t get_lock_type_from_string(const char *str)
{
if (!str)
return LOCK_TYPE_NONE;
if (!strcmp(str, "none"))
return LOCK_TYPE_NONE;
if (!strcmp(str, "clvm"))
return LOCK_TYPE_CLVM;
if (!strcmp(str, "dlm"))
return LOCK_TYPE_DLM;
if (!strcmp(str, "sanlock"))
return LOCK_TYPE_SANLOCK;
return LOCK_TYPE_INVALID;
}
static const char *_percent_types[7] = { "NONE", "VG", "FREE", "LV", "PVS", "ORIGIN" };
const char *get_percent_string(percent_type_t def)
{
return _percent_types[def];
}
static const char *_lv_name(const struct logical_volume *lv)
{
/* Never try to display names of the internal snapshot structures. */
if (lv_is_snapshot(lv))
return find_cow(lv)->name;
return lv->name;
}
const char *display_lvname(const struct logical_volume *lv)
{
char *name;
const char *lv_name = _lv_name(lv);
int r;
if ((lv->vg->cmd->display_lvname_idx + NAME_LEN) >= sizeof((lv->vg->cmd->display_buffer)))
lv->vg->cmd->display_lvname_idx = 0;
name = lv->vg->cmd->display_buffer + lv->vg->cmd->display_lvname_idx;
r = dm_snprintf(name, NAME_LEN, "%s/%s", lv->vg->name, lv_name);
if (r < 0) {
log_error("Full LV name \"%s/%s\" is too long.", lv->vg->name, lv_name);
return NULL;
}
lv->vg->cmd->display_lvname_idx += r + 1;
return name;
}
/* Size supplied in sectors */
static const char *_display_size(const struct cmd_context *cmd,
uint64_t size, dm_size_suffix_t suffix_type)
{
return dm_size_to_string(cmd->mem, size, cmd->current_settings.unit_type,
cmd->si_unit_consistency,
cmd->current_settings.unit_factor,
cmd->current_settings.suffix,
suffix_type);
}
const char *display_size_long(const struct cmd_context *cmd, uint64_t size)
{
return _display_size(cmd, size, DM_SIZE_LONG);
}
const char *display_size_units(const struct cmd_context *cmd, uint64_t size)
{
return _display_size(cmd, size, DM_SIZE_UNIT);
}
const char *display_size(const struct cmd_context *cmd, uint64_t size)
{
return _display_size(cmd, size, DM_SIZE_SHORT);
}
void pvdisplay_colons(const struct physical_volume *pv)
{
char uuid[64] __attribute__((aligned(8)));
if (!pv)
return;
if (!id_write_format(&pv->id, uuid, sizeof(uuid))) {
stack;
return;
}
log_print("%s:%s:%" PRIu64 ":-1:%" PRIu64 ":%" PRIu64 ":-1:%" PRIu32 ":%u:%u:%u:%s",
pv_dev_name(pv), pv_vg_name(pv), pv->size,
/* FIXME pv->pv_number, Derive or remove? */
pv->status, /* FIXME Support old or new format here? */
pv->status & ALLOCATABLE_PV, /* FIXME remove? */
/* FIXME pv->lv_cur, Remove? */
pv->pe_size / 2,
pv->pe_count,
pv->pe_count - pv->pe_alloc_count,
pv->pe_alloc_count, *uuid ? uuid : "none");
}
void pvdisplay_segments(const struct physical_volume *pv)
{
const struct pv_segment *pvseg;
if (pv->pe_size)
log_print("--- Physical Segments ---");
dm_list_iterate_items(pvseg, &pv->segments) {
log_print("Physical extent %u to %u:",
pvseg->pe, pvseg->pe + pvseg->len - 1);
if (pvseg_is_allocated(pvseg)) {
log_print(" Logical volume\t%s%s/%s",
pvseg->lvseg->lv->vg->cmd->dev_dir,
pvseg->lvseg->lv->vg->name,
pvseg->lvseg->lv->name);
log_print(" Logical extents\t%d to %d",
pvseg->lvseg->le, pvseg->lvseg->le +
pvseg->lvseg->len - 1);
} else
log_print(" FREE");
}
log_print(" ");
}
/* FIXME Include label fields */
void pvdisplay_full(const struct cmd_context *cmd,
const struct physical_volume *pv,
void *handle __attribute__((unused)))
{
char uuid[64] __attribute__((aligned(8)));
const char *size;
uint32_t pe_free;
uint64_t data_size, pvsize, unusable;
if (!pv)
return;
if (!id_write_format(&pv->id, uuid, sizeof(uuid))) {
stack;
return;
}
log_print("--- %sPhysical volume ---", pv->pe_size ? "" : "NEW ");
log_print("PV Name %s", pv_dev_name(pv));
log_print("VG Name %s%s",
is_orphan(pv) ? "" : pv->vg_name,
pv->status & EXPORTED_VG ? " (exported)" : "");
data_size = (uint64_t) pv->pe_count * pv->pe_size;
if (pv->size > data_size + pv->pe_start) {
pvsize = pv->size;
unusable = pvsize - data_size;
} else {
pvsize = data_size + pv->pe_start;
unusable = pvsize - pv->size;
}
size = display_size(cmd, pvsize);
if (data_size)
log_print("PV Size %s / not usable %s", /* [LVM: %s]", */
size, display_size(cmd, unusable));
else
log_print("PV Size %s", size);
/* PV number not part of LVM2 design
log_print("PV# %u", pv->pv_number);
*/
pe_free = pv->pe_count - pv->pe_alloc_count;
if (pv->pe_count && (pv->status & ALLOCATABLE_PV))
log_print("Allocatable yes %s",
(!pe_free && pv->pe_count) ? "(but full)" : "");
else
log_print("Allocatable NO");
/* LV count is no longer available when displaying PV
log_print("Cur LV %u", vg->lv_count);
*/
if (cmd->si_unit_consistency)
log_print("PE Size %s", display_size(cmd, (uint64_t) pv->pe_size));
else
log_print("PE Size (KByte) %" PRIu32, pv->pe_size / 2);
log_print("Total PE %u", pv->pe_count);
log_print("Free PE %" PRIu32, pe_free);
log_print("Allocated PE %u", pv->pe_alloc_count);
log_print("PV UUID %s", *uuid ? uuid : "none");
log_print(" ");
}
int pvdisplay_short(const struct cmd_context *cmd __attribute__((unused)),
const struct volume_group *vg __attribute__((unused)),
const struct physical_volume *pv,
void *handle __attribute__((unused)))
{
char uuid[64] __attribute__((aligned(8)));
if (!pv)
return_0;
if (!id_write_format(&pv->id, uuid, sizeof(uuid)))
return_0;
log_print("PV Name %s ", pv_dev_name(pv));
/* FIXME pv->pv_number); */
log_print("PV UUID %s", *uuid ? uuid : "none");
log_print("PV Status %sallocatable",
(pv->status & ALLOCATABLE_PV) ? "" : "NOT ");
log_print("Total PE / Free PE %u / %u",
pv->pe_count, pv->pe_count - pv->pe_alloc_count);
log_print(" ");
return 1; /* ECMD_PROCESSED */
}
void lvdisplay_colons(const struct logical_volume *lv)
{
int inkernel;
struct lvinfo info;
inkernel = lv_info(lv->vg->cmd, lv, 0, &info, 1, 0) && info.exists;
log_print("%s%s/%s:%s:%" PRIu64 ":%d:-1:%d:%" PRIu64 ":%d:-1:%d:%d:%d:%d",
lv->vg->cmd->dev_dir,
lv->vg->name,
lv->name,
lv->vg->name,
((lv->status & (LVM_READ | LVM_WRITE)) >> 8) |
((inkernel && info.read_only) ? 4 : 0), inkernel ? 1 : 0,
/* FIXME lv->lv_number, */
inkernel ? info.open_count : 0, lv->size, lv->le_count,
/* FIXME Add num allocated to struct! lv->lv_allocated_le, */
(lv->alloc == ALLOC_CONTIGUOUS ? 2 : 0), lv->read_ahead,
inkernel ? info.major : -1, inkernel ? info.minor : -1);
}
static int _lvdisplay_historical_full(struct cmd_context *cmd,
const struct logical_volume *lv)
{
char uuid[64] __attribute__((aligned(8)));
int lvm1compat = find_config_tree_bool(cmd, global_lvdisplay_shows_full_device_path_CFG, NULL);
struct historical_logical_volume *hlv = lv->this_glv->historical;
if (!id_write_format(&hlv->lvid.id[1], uuid, sizeof(uuid)))
return_0;
log_print("--- Historical Logical volume ---");
if (lvm1compat)
/* /dev/vgname/lvname doen't actually exist for historical devices */
log_print("LV Name %s%s/%s",
hlv->vg->cmd->dev_dir, hlv->vg->name, hlv->name);
else
log_print("LV Name %s%s", HISTORICAL_LV_PREFIX, hlv->name);
log_print("VG Name %s", hlv->vg->name);
log_print("LV UUID %s", uuid);
log_print("LV Creation time %s", lv_creation_time_dup(cmd->mem, lv, 1));
log_print("LV Removal time %s", lv_removal_time_dup(cmd->mem, lv, 1));
log_print(" ");
return 1;
}
int lvdisplay_full(struct cmd_context *cmd,
const struct logical_volume *lv,
void *handle __attribute__((unused)))
{
struct lvinfo info;
int inkernel, snap_active = 0;
char uuid[64] __attribute__((aligned(8)));
const char *access_str;
struct lv_segment *snap_seg = NULL, *mirror_seg = NULL;
struct lv_segment *seg = NULL;
int lvm1compat;
dm_percent_t snap_percent;
int thin_data_active = 0, thin_metadata_active = 0;
dm_percent_t thin_data_percent, thin_metadata_percent;
int thin_active = 0;
dm_percent_t thin_percent;
struct lv_status_cache *cache_status = NULL;
if (lv_is_historical(lv))
return _lvdisplay_historical_full(cmd, lv);
if (!id_write_format(&lv->lvid.id[1], uuid, sizeof(uuid)))
return_0;
inkernel = lv_info(cmd, lv, 0, &info, 1, 1) && info.exists;
if ((lv->status & LVM_WRITE) && inkernel && info.read_only)
access_str = "read/write (activated read only)";
else if (lv->status & LVM_WRITE)
access_str = "read/write";
else
access_str = "read only";
log_print("--- Logical volume ---");
lvm1compat = find_config_tree_bool(cmd, global_lvdisplay_shows_full_device_path_CFG, NULL);
if (lvm1compat)
/* /dev/vgname/lvname doen't actually exist for internal devices */
log_print("LV Name %s%s/%s",
lv->vg->cmd->dev_dir, lv->vg->name, lv->name);
else if (lv_is_visible(lv)) {
/* Thin pool does not have /dev/vg/name link */
if (!lv_is_thin_pool(lv))
log_print("LV Path %s%s/%s",
lv->vg->cmd->dev_dir,
lv->vg->name, lv->name);
log_print("LV Name %s", lv->name);
} else
log_print("Internal LV Name %s", lv->name);
log_print("VG Name %s", lv->vg->name);
log_print("LV UUID %s", uuid);
log_print("LV Write Access %s", access_str);
log_print("LV Creation host, time %s, %s",
lv_host_dup(cmd->mem, lv), lv_creation_time_dup(cmd->mem, lv, 1));
if (lv_is_origin(lv)) {
log_print("LV snapshot status source of");
dm_list_iterate_items_gen(snap_seg, &lv->snapshot_segs,
origin_list) {
if (inkernel &&
(snap_active = lv_snapshot_percent(snap_seg->cow,
&snap_percent)))
if (snap_percent == DM_PERCENT_INVALID)
snap_active = 0;
if (lvm1compat)
log_print(" %s%s/%s [%s]",
lv->vg->cmd->dev_dir, lv->vg->name,
snap_seg->cow->name,
snap_active ? "active" : "INACTIVE");
else
log_print(" %s [%s]",
snap_seg->cow->name,
snap_active ? "active" : "INACTIVE");
}
snap_seg = NULL;
} else if ((snap_seg = find_snapshot(lv))) {
if (inkernel &&
(snap_active = lv_snapshot_percent(snap_seg->cow,
&snap_percent)))
if (snap_percent == DM_PERCENT_INVALID)
snap_active = 0;
if (lvm1compat)
log_print("LV snapshot status %s destination for %s%s/%s",
snap_active ? "active" : "INACTIVE",
lv->vg->cmd->dev_dir, lv->vg->name,
snap_seg->origin->name);
else
log_print("LV snapshot status %s destination for %s",
snap_active ? "active" : "INACTIVE",
snap_seg->origin->name);
}
if (lv_is_thin_volume(lv)) {
seg = first_seg(lv);
log_print("LV Pool name %s", seg->pool_lv->name);
if (seg->origin)
log_print("LV Thin origin name %s",
seg->origin->name);
if (seg->external_lv)
log_print("LV External origin name %s",
seg->external_lv->name);
if (seg->merge_lv)
log_print("LV merging to %s",
seg->merge_lv->name);
if (inkernel)
thin_active = lv_thin_percent(lv, 0, &thin_percent);
if (lv_is_merging_origin(lv))
log_print("LV merged with %s",
find_snapshot(lv)->lv->name);
} else if (lv_is_thin_pool(lv)) {
if (lv_info(cmd, lv, 1, &info, 1, 1) && info.exists) {
thin_data_active = lv_thin_pool_percent(lv, 0, &thin_data_percent);
thin_metadata_active = lv_thin_pool_percent(lv, 1, &thin_metadata_percent);
}
/* FIXME: display thin_pool targets transid for activated LV as well */
seg = first_seg(lv);
log_print("LV Pool metadata %s", seg->metadata_lv->name);
log_print("LV Pool data %s", seg_lv(seg, 0)->name);
} else if (lv_is_cache_origin(lv)) {
log_print("LV origin of Cache LV %s",
get_only_segment_using_this_lv(lv)->lv->name);
} else if (lv_is_cache(lv)) {
seg = first_seg(lv);
if (inkernel && !lv_cache_status(lv, &cache_status))
return_0;
log_print("LV Cache pool name %s", seg->pool_lv->name);
log_print("LV Cache origin name %s", seg_lv(seg, 0)->name);
} else if (lv_is_cache_pool(lv)) {
seg = first_seg(lv);
log_print("LV Pool metadata %s", seg->metadata_lv->name);
log_print("LV Pool data %s", seg_lv(seg, 0)->name);
}
if (inkernel && info.suspended)
log_print("LV Status suspended");
else if (activation())
log_print("LV Status %savailable",
inkernel ? "" : "NOT ");
/********* FIXME lv_number
log_print("LV # %u", lv->lv_number + 1);
************/
if (inkernel)
log_print("# open %u", info.open_count);
log_print("LV Size %s",
display_size(cmd,
snap_seg ? snap_seg->origin->size : lv->size));
if (cache_status) {
log_print("Cache used blocks %.2f%%",
dm_percent_to_float(cache_status->data_usage));
log_print("Cache metadata blocks %.2f%%",
dm_percent_to_float(cache_status->metadata_usage));
log_print("Cache dirty blocks %.2f%%",
dm_percent_to_float(cache_status->dirty_usage));
log_print("Cache read hits/misses " FMTu64 " / " FMTu64,
cache_status->cache->read_hits,
cache_status->cache->read_misses);
log_print("Cache wrt hits/misses " FMTu64 " / " FMTu64,
cache_status->cache->write_hits,
cache_status->cache->write_misses);
log_print("Cache demotions " FMTu64,
cache_status->cache->demotions);
log_print("Cache promotions " FMTu64,
cache_status->cache->promotions);
dm_pool_destroy(cache_status->mem);
}
if (thin_data_active)
log_print("Allocated pool data %.2f%%",
dm_percent_to_float(thin_data_percent));
if (thin_metadata_active)
log_print("Allocated metadata %.2f%%",
dm_percent_to_float(thin_metadata_percent));
if (thin_active)
log_print("Mapped size %.2f%%",
dm_percent_to_float(thin_percent));
log_print("Current LE %u",
snap_seg ? snap_seg->origin->le_count : lv->le_count);
if (snap_seg) {
log_print("COW-table size %s",
display_size(cmd, (uint64_t) lv->size));
log_print("COW-table LE %u", lv->le_count);
if (snap_active)
log_print("Allocated to snapshot %.2f%%",
dm_percent_to_float(snap_percent));
log_print("Snapshot chunk size %s",
display_size(cmd, (uint64_t) snap_seg->chunk_size));
}
if (lv_is_mirrored(lv)) {
mirror_seg = first_seg(lv);
log_print("Mirrored volumes %" PRIu32, mirror_seg->area_count);
if (lv_is_converting(lv))
log_print("LV type Mirror undergoing conversion");
}
log_print("Segments %u", dm_list_size(&lv->segments));
/********* FIXME Stripes & stripesize for each segment
log_print("Stripe size %s", display_size(cmd, (uint64_t) lv->stripesize));
***********/
log_print("Allocation %s", get_alloc_string(lv->alloc));
if (lv->read_ahead == DM_READ_AHEAD_AUTO)
log_print("Read ahead sectors auto");
else if (lv->read_ahead == DM_READ_AHEAD_NONE)
log_print("Read ahead sectors 0");
else
log_print("Read ahead sectors %u", lv->read_ahead);
if (inkernel && lv->read_ahead != info.read_ahead)
log_print("- currently set to %u", info.read_ahead);
if (lv->status & FIXED_MINOR) {
if (lv->major >= 0)
log_print("Persistent major %d", lv->major);
log_print("Persistent minor %d", lv->minor);
}
if (inkernel)
log_print("Block device %d:%d", info.major,
info.minor);
log_print(" ");
return 1; /* ECMD_PROCESSED */
}
void display_stripe(const struct lv_segment *seg, uint32_t s, const char *pre)
{
switch (seg_type(seg, s)) {
case AREA_PV:
/* FIXME Re-check the conditions for 'Missing' */
log_print("%sPhysical volume\t%s", pre,
seg_pv(seg, s) ?
pv_dev_name(seg_pv(seg, s)) :
"Missing");
if (seg_pv(seg, s))
log_print("%sPhysical extents\t%d to %d", pre,
seg_pe(seg, s),
seg_pe(seg, s) + seg->area_len - 1);
break;
case AREA_LV:
log_print("%sLogical volume\t%s", pre,
seg_lv(seg, s) ?
seg_lv(seg, s)->name : "Missing");
if (seg_lv(seg, s))
log_print("%sLogical extents\t%d to %d", pre,
seg_le(seg, s),
seg_le(seg, s) + seg->area_len - 1);
break;
case AREA_UNASSIGNED:
log_print("%sUnassigned area", pre);
}
}
int lvdisplay_segments(const struct logical_volume *lv)
{
const struct lv_segment *seg;
log_print("--- Segments ---");
dm_list_iterate_items(seg, &lv->segments) {
log_print("%s extents %u to %u:",
lv_is_virtual(lv) ? "Virtual" : "Logical",
seg->le, seg->le + seg->len - 1);
log_print(" Type\t\t%s", lvseg_name(seg));
if (seg->segtype->ops->target_monitored)
log_print(" Monitoring\t\t%s",
lvseg_monitor_dup(lv->vg->cmd->mem, seg));
if (seg->segtype->ops->display)
seg->segtype->ops->display(seg);
}
log_print(" ");
return 1;
}
void vgdisplay_extents(const struct volume_group *vg __attribute__((unused)))
{
}
void vgdisplay_full(const struct volume_group *vg)
{
uint32_t access_str;
uint32_t active_pvs;
char uuid[64] __attribute__((aligned(8)));
active_pvs = vg->pv_count - vg_missing_pv_count(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 : vg->lvm1_system_id ? : "");
log_print("Format %s", vg->fid->fmt->name);
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" : "",
access_str == LVM_READ ? "read" : "",
access_str == LVM_WRITE ? "write" : "",
access_str == 0 ? "error" : "");
log_print("VG Status %s%sresizable",
vg_is_exported(vg) ? "exported/" : "",
vg_is_resizeable(vg) ? "" : "NOT ");
/* vg number not part of LVM2 design
log_print ("VG # %u\n", vg->vg_number);
*/
if (vg_is_clustered(vg)) {
log_print("Clustered yes");
log_print("Shared %s",
vg->status & SHARED ? "yes" : "no");
}
log_print("MAX LV %u", vg->max_lv);
log_print("Cur LV %u", vg_visible_lvs(vg));
log_print("Open LV %u", lvs_in_vg_opened(vg));
/****** FIXME Max LV Size
log_print ( "MAX LV Size %s",
( s1 = display_size ( LVM_LV_SIZE_MAX(vg))));
free ( s1);
*********/
log_print("Max PV %u", vg->max_pv);
log_print("Cur PV %u", vg->pv_count);
log_print("Act PV %u", active_pvs);
log_print("VG Size %s",
display_size(vg->cmd,
(uint64_t) vg->extent_count * vg->extent_size));
log_print("PE Size %s",
display_size(vg->cmd, vg->extent_size));
log_print("Total PE %u", vg->extent_count);
log_print("Alloc PE / Size %u / %s",
vg->extent_count - vg->free_count,
display_size(vg->cmd,
(uint64_t) (vg->extent_count - vg->free_count) *
vg->extent_size));
log_print("Free PE / Size %u / %s", vg->free_count,
display_size(vg->cmd, vg_free(vg)));
if (!id_write_format(&vg->id, uuid, sizeof(uuid))) {
stack;
return;
}
log_print("VG UUID %s", uuid);
log_print(" ");
}
void vgdisplay_colons(const struct volume_group *vg)
{
uint32_t active_pvs;
const char *access_str;
char uuid[64] __attribute__((aligned(8)));
active_pvs = vg->pv_count - vg_missing_pv_count(vg);
switch (vg->status & (LVM_READ | LVM_WRITE)) {
case LVM_READ | LVM_WRITE:
access_str = "r/w";
break;
case LVM_READ:
access_str = "r";
break;
case LVM_WRITE:
access_str = "w";
break;
default:
access_str = "";
}
if (!id_write_format(&vg->id, uuid, sizeof(uuid))) {
stack;
return;
}
log_print("%s:%s:%" PRIu64 ":-1:%u:%u:%u:-1:%u:%u:%u:%" PRIu64 ":%" PRIu32
":%u:%u:%u:%s",
vg->name,
access_str,
vg->status,
/* internal volume group number; obsolete */
vg->max_lv,
vg_visible_lvs(vg),
lvs_in_vg_opened(vg),
/* FIXME: maximum logical volume size */
vg->max_pv,
vg->pv_count,
active_pvs,
(uint64_t) vg->extent_count * (vg->extent_size / 2),
vg->extent_size / 2,
vg->extent_count,
vg->extent_count - vg->free_count,
vg->free_count,
uuid[0] ? uuid : "none");
}
void vgdisplay_short(const struct volume_group *vg)
{
log_print("\"%s\" %-9s [%-9s used / %s free]", vg->name,
/********* FIXME if "open" print "/used" else print "/idle"??? ******/
display_size(vg->cmd,
(uint64_t) vg->extent_count * vg->extent_size),
display_size(vg->cmd,
((uint64_t) vg->extent_count -
vg->free_count) * vg->extent_size),
display_size(vg->cmd, vg_free(vg)));
}
void display_formats(const struct cmd_context *cmd)
{
const struct format_type *fmt;
dm_list_iterate_items(fmt, &cmd->formats) {
log_print("%s", fmt->name);
}
}
void display_segtypes(const struct cmd_context *cmd)
{
const struct segment_type *segtype;
dm_list_iterate_items(segtype, &cmd->segtypes) {
log_print("%s", segtype->name);
}
}
void display_tags(const struct cmd_context *cmd)
{
const struct dm_str_list *sl;
dm_list_iterate_items(sl, &cmd->tags) {
log_print("%s", sl->str);
}
}
void display_name_error(name_error_t name_error)
{
switch(name_error) {
case NAME_VALID:
/* Valid name */
break;
case NAME_INVALID_EMPTY:
log_error("Name is zero length.");
break;
case NAME_INVALID_HYPHEN:
log_error("Name cannot start with hyphen.");
break;
case NAME_INVALID_DOTS:
log_error("Name starts with . or .. and has no "
"following character(s).");
break;
case NAME_INVALID_CHARSET:
log_error("Name contains invalid character, valid set includes: "
"[a-zA-Z0-9.-_+].");
break;
case NAME_INVALID_LENGTH:
/* Report that name length - 1 to accommodate nul*/
log_error("Name length exceeds maximum limit of %d.", (NAME_LEN - 1));
break;
default:
log_error(INTERNAL_ERROR "Unknown error %d on name validation.", name_error);
break;
}
}
/*
* Prompt for y or n from stdin.
* Defaults to 'no' in silent mode.
* All callers should support --yes and/or --force to override this.
*
* Accepted are either _yes[] or _no[] strings or just their outset.
* When running without 'tty' stdin is printed to stderr.
* 'Yes' is accepted ONLY with '\n'.
*/
char yes_no_prompt(const char *prompt, ...)
{
/* Lowercase Yes/No strings */
static const char _yes[] = "yes";
static const char _no[] = "no";
const char *answer = NULL;
int c = silent_mode() ? EOF : 0;
int i = 0, ret = 0, sig = 0;
char buf[12];
va_list ap;
sigint_allow();
for (;;) {
if (!ret) {
/* Show prompt */
va_start(ap, prompt);
vfprintf(stderr, prompt, ap);
va_end(ap);
fflush(stderr);
if (c == EOF)
break;
i = 0;
answer = NULL;
}
nextchar:
if ((sig = sigint_caught()))
break; /* Check if already interrupted before getchar() */
if ((c = getchar()) == EOF) {
/* SIGNAL or no chars on stdin (missing '\n') or ^D */
if (!i)
break; /* Just shown prompt,-> print [n]\n */
goto invalid; /* Note: c holds EOF */
}
if ((i < (sizeof(buf) - 4)) && isprint(c))
buf[i++] = c;
c = tolower(c);
if ((ret > 0) && (c == answer[0]))
answer++; /* Matching, next char */
else if (c == '\n') {
if (feof(stdin))
fputc('\n', stderr);
if (ret > 0)
break; /* Answered */
invalid:
if (i >= (sizeof(buf) - 4)) {
/* '...' for missing input */
i = sizeof(buf) - 1;
buf[i - 1] = buf[i - 2] = buf[i - 3] = '.';
}
buf[i] = 0;
log_warn("WARNING: Invalid input '%s'.", buf);
ret = 0; /* Otherwise refresh prompt */
} else if (!ret && (c == _yes[0])) {
ret = 'y';
answer = _yes + 1; /* Expecting 'Yes' */
} else if (!ret && (c == _no[0])) {
ret = 'n';
answer = _no + 1; /* Expecting 'No' */
} else if (!ret && isspace(c)) {
/* Ignore any whitespace before */
--i;
goto nextchar;
} else if ((ret > 0) && isspace(c)) {
/* Ignore any whitespace after */
while (*answer)
answer++; /* jump to end-of-word */
} else
ret = -1; /* Read till '\n' and refresh */
}
sigint_restore();
/* For other then Yes answer check there is really no interrupt */
if (sig || sigint_caught()) {
stack;
ret = 'n';
} else if (c == EOF) {
fputs("[n]\n", stderr);
ret = 'n';
} else
/* Not knowing if it's terminal, makes this hard.... */
log_verbose("Accepted input: [%c]", ret);
return ret;
}
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