int is_reserved_lvname(const char *name)
{
int rc, old_suppress;
old_suppress = log_suppress(2);
rc = !apply_lvname_restrictions(name);
log_suppress(old_suppress);
return rc;
}
/*
* lvrename command implementation.
* Check arguments and call lv_rename() to execute the request.
*/
int lvrename(struct cmd_context *cmd, int argc, char **argv)
{
size_t maxlen;
char *lv_name_old, *lv_name_new;
const char *vg_name, *vg_name_new, *vg_name_old;
char *st;
int r = ECMD_FAILED;
struct volume_group *vg = NULL;
struct lv_list *lvl;
if (argc == 3) {
vg_name = skip_dev_dir(cmd, argv[0], NULL);
lv_name_old = argv[1];
lv_name_new = argv[2];
if (strchr(lv_name_old, '/') &&
(vg_name_old = extract_vgname(cmd, lv_name_old)) &&
strcmp(vg_name_old, vg_name)) {
log_error("Please use a single volume group name "
"(\"%s\" or \"%s\")", vg_name, vg_name_old);
return EINVALID_CMD_LINE;
}
} else if (argc == 2) {
lv_name_old = argv[0];
lv_name_new = argv[1];
vg_name = extract_vgname(cmd, lv_name_old);
} else {
log_error("Old and new logical volume names required");
return EINVALID_CMD_LINE;
}
if (!validate_name(vg_name)) {
log_error("Please provide a valid volume group name");
return EINVALID_CMD_LINE;
}
if (strchr(lv_name_new, '/') &&
(vg_name_new = extract_vgname(cmd, lv_name_new)) &&
strcmp(vg_name, vg_name_new)) {
log_error("Logical volume names must "
"have the same volume group (\"%s\" or \"%s\")",
vg_name, vg_name_new);
return EINVALID_CMD_LINE;
}
if ((st = strrchr(lv_name_old, '/')))
lv_name_old = st + 1;
if ((st = strrchr(lv_name_new, '/')))
lv_name_new = st + 1;
/* Check sanity of new name */
maxlen = NAME_LEN - strlen(vg_name) - strlen(cmd->dev_dir) - 3;
if (strlen(lv_name_new) > maxlen) {
log_error("New logical volume path exceeds maximum length "
"of %" PRIsize_t "!", maxlen);
return ECMD_FAILED;
}
if (!*lv_name_new) {
log_error("New logical volume name may not be blank");
return ECMD_FAILED;
}
if (!apply_lvname_restrictions(lv_name_new)) {
stack;
return ECMD_FAILED;
}
if (!validate_name(lv_name_new)) {
log_error("New logical volume name \"%s\" is invalid",
lv_name_new);
return EINVALID_CMD_LINE;
}
if (!strcmp(lv_name_old, lv_name_new)) {
log_error("Old and new logical volume names must differ");
return EINVALID_CMD_LINE;
}
log_verbose("Checking for existing volume group \"%s\"", vg_name);
vg = vg_read_for_update(cmd, vg_name, NULL, 0);
if (vg_read_error(vg)) {
release_vg(vg);
stack;
return ECMD_FAILED;
}
if (!(lvl = find_lv_in_vg(vg, lv_name_old))) {
log_error("Existing logical volume \"%s\" not found in "
"volume group \"%s\"", lv_name_old, vg_name);
goto error;
}
if (!lv_rename(cmd, lvl->lv, lv_name_new))
goto error;
log_print("Renamed \"%s\" to \"%s\" in volume group \"%s\"",
lv_name_old, lv_name_new, vg_name);
r = ECMD_PROCESSED;
error:
unlock_and_release_vg(cmd, vg, vg_name);
return r;
}
static int _lvcreate_name_params(struct lvcreate_params *lp,
struct cmd_context *cmd,
int *pargc, char ***pargv)
{
int argc = *pargc;
char **argv = *pargv, *ptr;
const char *vg_name;
lp->pool = arg_str_value(cmd, thinpool_ARG, NULL);
/* If --thinpool contains VG name, extract it. */
if (lp->pool && strchr(lp->pool, '/')) {
if (!(lp->vg_name = extract_vgname(cmd, lp->pool)))
return 0;
/* Strip VG from pool */
if ((ptr = strrchr(lp->pool, (int) '/')))
lp->pool = ptr + 1;
}
lp->lv_name = arg_str_value(cmd, name_ARG, NULL);
/* If --name contains VG name, extract it. */
if (lp->lv_name && strchr(lp->lv_name, '/')) {
if (!_set_vg_name(lp, extract_vgname(cmd, lp->lv_name)))
return_0;
/* Strip VG from lv_name */
if ((ptr = strrchr(lp->lv_name, (int) '/')))
lp->lv_name = ptr + 1;
}
/* Need an origin? */
if (lp->snapshot && !arg_count(cmd, virtualsize_ARG)) {
/* argv[0] might be origin or vg/origin */
if (!argc) {
log_error("Please specify a logical volume to act as "
"the snapshot origin.");
return 0;
}
lp->origin = skip_dev_dir(cmd, argv[0], NULL);
if (strrchr(lp->origin, '/')) {
if (!_set_vg_name(lp, extract_vgname(cmd, lp->origin)))
return_0;
/* Strip the volume group from the origin */
if ((ptr = strrchr(lp->origin, (int) '/')))
lp->origin = ptr + 1;
}
if (!lp->vg_name &&
!_set_vg_name(lp, extract_vgname(cmd, NULL)))
return_0;
if (!lp->vg_name) {
log_error("The origin name should include the "
"volume group.");
return 0;
}
(*pargv)++, (*pargc)--;
} else if (seg_is_thin(lp) && !lp->pool && argc) {
/* argv[0] might be vg or vg/Pool */
vg_name = skip_dev_dir(cmd, argv[0], NULL);
if (!strrchr(vg_name, '/')) {
if (!_set_vg_name(lp, vg_name))
return_0;
} else {
lp->pool = vg_name;
if (!_set_vg_name(lp, extract_vgname(cmd, lp->pool)))
return_0;
if (!lp->vg_name &&
!_set_vg_name(lp, extract_vgname(cmd, NULL)))
return_0;
if (!lp->vg_name) {
log_error("The pool name should include the "
"volume group.");
return 0;
}
/* Strip the volume group */
if ((ptr = strrchr(lp->pool, (int) '/')))
lp->pool = ptr + 1;
}
(*pargv)++, (*pargc)--;
} else {
/*
* If VG not on command line, try environment default.
*/
if (!argc) {
if (!lp->vg_name && !(lp->vg_name = extract_vgname(cmd, NULL))) {
log_error("Please provide a volume group name");
return 0;
}
} else {
vg_name = skip_dev_dir(cmd, argv[0], NULL);
if (strrchr(vg_name, '/')) {
log_error("Volume group name expected "
"(no slash)");
return 0;
}
if (!_set_vg_name(lp, vg_name))
return_0;
(*pargv)++, (*pargc)--;
}
}
if (!validate_name(lp->vg_name)) {
log_error("Volume group name %s has invalid characters",
lp->vg_name);
return 0;
}
if (lp->lv_name) {
if (!apply_lvname_restrictions(lp->lv_name))
return_0;
if (!validate_name(lp->lv_name)) {
log_error("Logical volume name \"%s\" is invalid",
lp->lv_name);
return 0;
}
}
if (lp->pool) {
if (!apply_lvname_restrictions(lp->pool))
return_0;
if (!validate_name(lp->pool)) {
log_error("Logical volume name \"%s\" is invalid",
lp->pool);
return 0;
}
if (lp->lv_name && !strcmp(lp->lv_name, lp->pool)) {
log_error("Logical volume name %s and pool name %s must be different.",
lp->lv_name, lp->pool);
return 0;
}
}
return 1;
}
static int _lvcreate_name_params(struct lvcreate_params *lp,
struct cmd_context *cmd,
int *pargc, char ***pargv)
{
int argc = *pargc;
char **argv = *pargv, *ptr;
char *vg_name;
lp->lv_name = arg_str_value(cmd, name_ARG, NULL);
if (lp->snapshot && !arg_count(cmd, virtualsize_ARG)) {
if (!argc) {
log_error("Please specify a logical volume to act as "
"the snapshot origin.");
return 0;
}
lp->origin = argv[0];
(*pargv)++, (*pargc)--;
if (!(lp->vg_name = extract_vgname(cmd, lp->origin))) {
log_error("The origin name should include the "
"volume group.");
return 0;
}
/* Strip the volume group from the origin */
if ((ptr = strrchr(lp->origin, (int) '/')))
lp->origin = ptr + 1;
} else {
/*
* If VG not on command line, try -n arg and then
* environment.
*/
if (!argc) {
if (!(lp->vg_name = extract_vgname(cmd, lp->lv_name))) {
log_error("Please provide a volume group name");
return 0;
}
} else {
vg_name = skip_dev_dir(cmd, argv[0], NULL);
if (strrchr(vg_name, '/')) {
log_error("Volume group name expected "
"(no slash)");
return 0;
}
/*
* Ensure lv_name doesn't contain a
* different VG.
*/
if (lp->lv_name && strchr(lp->lv_name, '/')) {
if (!(lp->vg_name =
extract_vgname(cmd, lp->lv_name)))
return 0;
if (strcmp(lp->vg_name, vg_name)) {
log_error("Inconsistent volume group "
"names "
"given: \"%s\" and \"%s\"",
lp->vg_name, vg_name);
return 0;
}
}
lp->vg_name = vg_name;
(*pargv)++, (*pargc)--;
}
}
if (!validate_name(lp->vg_name)) {
log_error("Volume group name %s has invalid characters",
lp->vg_name);
return 0;
}
if (lp->lv_name) {
if ((ptr = strrchr(lp->lv_name, '/')))
lp->lv_name = ptr + 1;
if (!apply_lvname_restrictions(lp->lv_name))
return_0;
if (!validate_name(lp->lv_name)) {
log_error("Logical volume name \"%s\" is invalid",
lp->lv_name);
return 0;
}
}
return 1;
}
