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/*
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* Copyright ( C ) 2001 - 2004 Sistina Software , Inc . All rights reserved .
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* Copyright ( C ) 2004 - 2007 Red Hat , Inc . All rights reserved .
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*
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* This file is part of LVM2 .
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*
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* This copyrighted material is made available to anyone wishing to use ,
* modify , copy , or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v .2 .1 .
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program ; if not , write to the Free Software Foundation ,
* Inc . , 59 Temple Place , Suite 330 , Boston , MA 02111 - 1307 USA
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*/
# include "tools.h"
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# include "lvm-types.h"
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/*
* lvrename command implementation .
* Check arguments and call lv_rename ( ) to execute the request .
*/
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int lvrename ( struct cmd_context * cmd , int argc , char * * argv )
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{
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size_t maxlen ;
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char * lv_name_old , * lv_name_new ;
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const char * vg_name , * vg_name_new , * vg_name_old ;
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char * st ;
struct volume_group * vg ;
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struct lv_list * lvl ;
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if ( argc = = 3 ) {
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vg_name = skip_dev_dir ( cmd , argv [ 0 ] , NULL ) ;
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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 " ) ;
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return EINVALID_CMD_LINE ;
}
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if ( ! validate_name ( vg_name ) ) {
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log_error ( " Please provide a valid volume group name " ) ;
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return EINVALID_CMD_LINE ;
}
if ( strchr ( lv_name_new , ' / ' ) & &
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( vg_name_new = extract_vgname ( cmd , lv_name_new ) ) & &
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strcmp ( vg_name , vg_name_new ) ) {
log_error ( " Logical volume names must "
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" have the same volume group ( \" %s \" or \" %s \" ) " ,
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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 */
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maxlen = NAME_LEN - strlen ( vg_name ) - strlen ( cmd - > dev_dir ) - 3 ;
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if ( strlen ( lv_name_new ) > maxlen ) {
log_error ( " New logical volume path exceeds maximum length "
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" of % " PRIsize_t " ! " , maxlen ) ;
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return ECMD_FAILED ;
}
if ( ! * lv_name_new ) {
log_error ( " New logical volume name may not be blank " ) ;
return ECMD_FAILED ;
}
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if ( ! apply_lvname_restrictions ( lv_name_new ) ) {
stack ;
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return ECMD_FAILED ;
}
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if ( ! validate_name ( lv_name_new ) ) {
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log_error ( " New logical volume name \" %s \" is invalid " ,
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lv_name_new ) ;
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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 ;
}
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log_verbose ( " Checking for existing volume group \" %s \" " , vg_name ) ;
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if ( ! ( vg = vg_lock_and_read ( cmd , vg_name , LCK_VG_WRITE ,
CLUSTERED | EXPORTED_VG | LVM_WRITE ,
CORRECT_INCONSISTENT ) ) )
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return ECMD_FAILED ;
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if ( ! ( lvl = find_lv_in_vg ( vg , lv_name_old ) ) ) {
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log_error ( " Existing logical volume \" %s \" not found in "
" volume group \" %s \" " , lv_name_old , vg_name ) ;
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goto error ;
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}
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if ( ! lv_rename ( cmd , lvl - > lv , lv_name_new ) )
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goto error ;
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unlock_vg ( cmd , vg_name ) ;
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log_print ( " Renamed \" %s \" to \" %s \" in volume group \" %s \" " ,
lv_name_old , lv_name_new , vg_name ) ;
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return ECMD_PROCESSED ;
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error :
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unlock_vg ( cmd , vg_name ) ;
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return ECMD_FAILED ;
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}