2 * Copyright (C) 2008,2009 Red Hat, Inc. All rights reserved.
4 * This file is part of LVM2.
6 * This copyrighted material is made available to anyone wishing to use,
7 * modify, copy, or redistribute it subject to the terms and conditions
8 * of the GNU Lesser General Public License v.2.1.
10 * You should have received a copy of the GNU Lesser General Public License
11 * along with this program; if not, write to the Free Software Foundation,
12 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 #include "toolcontext.h"
24 int lvm_vg_add_tag(vg_t vg, const char *tag)
26 if (vg_read_error(vg))
29 if (!vg_check_write_mode(vg))
32 if (!vg_change_tag(vg, tag, 1))
38 int lvm_vg_remove_tag(vg_t vg, const char *tag)
40 if (vg_read_error(vg))
43 if (!vg_check_write_mode(vg))
46 if (!vg_change_tag(vg, tag, 0))
52 vg_t lvm_vg_create(lvm_t libh, const char *vg_name)
54 struct volume_group *vg;
56 vg = vg_create((struct cmd_context *)libh, vg_name);
57 /* FIXME: error handling is still TBD */
58 if (vg_read_error(vg)) {
66 int lvm_vg_extend(vg_t vg, const char *device)
68 struct pvcreate_params pp;
70 if (vg_read_error(vg))
73 if (!vg_check_write_mode(vg))
76 if (!lock_vol(vg->cmd, VG_ORPHANS, LCK_VG_WRITE)) {
77 log_error("Can't get lock for orphan PVs");
81 pvcreate_params_set_defaults(&pp);
82 if (!vg_extend(vg, 1, (char **) &device, &pp)) {
83 unlock_vg(vg->cmd, VG_ORPHANS);
87 * FIXME: Either commit to disk, or keep holding VG_ORPHANS and
88 * release in lvm_vg_close().
90 unlock_vg(vg->cmd, VG_ORPHANS);
94 int lvm_vg_reduce(vg_t vg, const char *device)
96 if (vg_read_error(vg))
98 if (!vg_check_write_mode(vg))
101 if (!vg_reduce(vg, (char *)device))
106 int lvm_vg_set_extent_size(vg_t vg, uint32_t new_size)
108 if (vg_read_error(vg))
110 if (!vg_check_write_mode(vg))
113 if (!vg_set_extent_size(vg, new_size / SECTOR_SIZE))
118 int lvm_vg_write(vg_t vg)
122 if (vg_read_error(vg))
124 if (!vg_check_write_mode(vg))
127 if (dm_list_empty(&vg->pvs)) {
133 if (! dm_list_empty(&vg->removed_pvs)) {
134 if (!lock_vol(vg->cmd, VG_ORPHANS, LCK_VG_WRITE)) {
135 log_error("Can't get lock for orphan PVs");
143 /* Store VG on disk(s) */
144 if (!vg_write(vg) || !vg_commit(vg))
147 if (! dm_list_empty(&vg->removed_pvs)) {
148 dm_list_iterate_items(pvl, &vg->removed_pvs) {
149 pv_write_orphan(vg->cmd, pvl->pv);
150 /* FIXME: do pvremove / label_remove()? */
152 dm_list_init(&vg->removed_pvs);
153 unlock_vg(vg->cmd, VG_ORPHANS);
159 int lvm_vg_close(vg_t vg)
161 if (vg_read_error(vg) == FAILED_LOCKING)
164 unlock_and_free_vg(vg->cmd, vg, vg->name);
168 int lvm_vg_remove(vg_t vg)
170 if (vg_read_error(vg))
172 if (!vg_check_write_mode(vg))
175 if (!vg_remove_check(vg))
183 vg_t lvm_vg_open(lvm_t libh, const char *vgname, const char *mode,
186 uint32_t internal_flags = 0;
187 struct volume_group *vg;
189 if (!strncmp(mode, "w", 1))
190 internal_flags |= READ_FOR_UPDATE;
191 else if (strncmp(mode, "r", 1)) {
192 log_errno(EINVAL, "Invalid VG open mode");
196 vg = vg_read((struct cmd_context *)libh, vgname, NULL, internal_flags);
197 if (vg_read_error(vg)) {
198 /* FIXME: use log_errno either here in inside vg_read */
202 /* FIXME: combine this with locking ? */
203 vg->open_mode = mode[0];
208 struct dm_list *lvm_vg_list_pvs(vg_t vg)
210 struct dm_list *list;
214 if (dm_list_empty(&vg->pvs))
217 if (!(list = dm_pool_zalloc(vg->vgmem, sizeof(*list)))) {
218 log_errno(ENOMEM, "Memory allocation fail for dm_list.");
223 dm_list_iterate_items(pvl, &vg->pvs) {
224 if (!(pvs = dm_pool_zalloc(vg->vgmem, sizeof(*pvs)))) {
226 "Memory allocation fail for lvm_pv_list.");
230 dm_list_add(list, &pvs->list);
235 struct dm_list *lvm_vg_list_lvs(vg_t vg)
237 struct dm_list *list;
241 if (dm_list_empty(&vg->lvs))
244 if (!(list = dm_pool_zalloc(vg->vgmem, sizeof(*list)))) {
245 log_errno(ENOMEM, "Memory allocation fail for dm_list.");
250 dm_list_iterate_items(lvl, &vg->lvs) {
251 if (!(lvs = dm_pool_zalloc(vg->vgmem, sizeof(*lvs)))) {
253 "Memory allocation fail for lvm_lv_list.");
257 dm_list_add(list, &lvs->list);
262 struct dm_list *lvm_vg_get_tags(const vg_t vg)
264 return tag_list_copy(vg->vgmem, &vg->tags);
267 uint64_t lvm_vg_get_seqno(const vg_t vg)
272 uint64_t lvm_vg_is_clustered(const vg_t vg)
274 return vg_is_clustered(vg);
277 uint64_t lvm_vg_is_exported(const vg_t vg)
279 return vg_is_exported(vg);
282 uint64_t lvm_vg_is_partial(const vg_t vg)
284 return (vg_missing_pv_count(vg) != 0);
287 /* FIXME: invalid handle? return INTMAX? */
288 uint64_t lvm_vg_get_size(const vg_t vg)
290 return SECTOR_SIZE * vg_size(vg);
293 uint64_t lvm_vg_get_free_size(const vg_t vg)
295 return SECTOR_SIZE * vg_free(vg);
298 uint64_t lvm_vg_get_extent_size(const vg_t vg)
300 return SECTOR_SIZE * vg_extent_size(vg);
303 uint64_t lvm_vg_get_extent_count(const vg_t vg)
305 return vg_extent_count(vg);
308 uint64_t lvm_vg_get_free_extent_count(const vg_t vg)
310 return vg_free_count(vg);
313 uint64_t lvm_vg_get_pv_count(const vg_t vg)
315 return vg_pv_count(vg);
318 uint64_t lvm_vg_get_max_pv(const vg_t vg)
320 return vg_max_pv(vg);
323 uint64_t lvm_vg_get_max_lv(const vg_t vg)
325 return vg_max_lv(vg);
328 const char *lvm_vg_get_uuid(const vg_t vg)
330 return vg_uuid_dup(vg);
333 const char *lvm_vg_get_name(const vg_t vg)
335 return dm_pool_strndup(vg->vgmem, (const char *)vg->name, NAME_LEN+1);
339 struct lvm_property_value lvm_vg_get_property(const vg_t vg, const char *name)
341 return get_property(NULL, vg, NULL, NULL, NULL, name);
344 int lvm_vg_set_property(const vg_t vg, const char *name,
345 struct lvm_property_value *value)
347 return set_property(NULL, vg, NULL, name, value);
350 struct dm_list *lvm_list_vg_names(lvm_t libh)
352 return get_vgnames((struct cmd_context *)libh, 0);
355 struct dm_list *lvm_list_vg_uuids(lvm_t libh)
357 return get_vgids((struct cmd_context *)libh, 0);
361 * FIXME: Elaborate on when to use, side-effects, .cache file, etc
363 int lvm_scan(lvm_t libh)
365 if (!lvmcache_label_scan((struct cmd_context *)libh, 2))