/* Rename a VM instance */
static int cmd_rename(hypervisor_conn_t *conn,int argc,char *argv[])
{
vm_instance_t *vm;
if (!(vm = hypervisor_find_object(conn,argv[0],OBJ_TYPE_VM)))
return(-1);
if (registry_exists(argv[1],OBJ_TYPE_VM)) {
vm_release(vm);
hypervisor_send_reply(conn,HSC_ERR_RENAME,1,
"unable to rename VM instance '%s', '%s' already exists",
argv[0],argv[1]);
return(-1);
}
if (vm_rename_instance(vm,argv[1])) {
hypervisor_send_reply(conn,HSC_ERR_RENAME,1,
"unable to rename VM instance '%s'",
argv[0]);
return(-1);
}
vm_release(vm);
hypervisor_send_reply(conn,HSC_INFO_OK,1,"VM '%s' renamed to '%s'",argv[0],argv[1]);
return(0);
}
/* Remove a NetIO descriptor from a virtual ethernet switch */
int ethsw_remove_netio(ethsw_table_t *t,char *nio_name)
{
netio_desc_t *nio;
int i;
ETHSW_LOCK(t);
if (!(nio = registry_exists(nio_name,OBJ_TYPE_NIO)))
goto error;
/* Try to find the NIO in the NIO array */
for(i=0;i<ETHSW_MAX_NIO;i++)
if (t->nio[i] == nio)
break;
if (i == ETHSW_MAX_NIO)
goto error;
/* Invalidate this port in the MAC address table */
ethsw_invalidate_port(t,nio);
t->nio[i] = NULL;
ETHSW_UNLOCK(t);
/* Remove the NIO from the RX multiplexer */
ethsw_free_nio(nio);
return(0);
error:
ETHSW_UNLOCK(t);
return(-1);
}
/* Rename a VM instance */
int vm_rename_instance(vm_instance_t *vm, char *name)
{
char *old_name;
char *old_lock_file = NULL;
FILE *old_lock_fd = NULL;
glob_t globbuf;
size_t i;
char *pattern = NULL;
char *filename;
int do_rename = 0;
if (name == NULL || vm == NULL)
goto err_invalid; /* invalid argument */
if (vm->status != VM_STATUS_HALTED)
goto err_not_stopped; /* VM is not stopped */
if (strcmp(vm->name, name) == 0)
return(0); /* same name, done */
if (registry_exists(name,OBJ_TYPE_VM))
goto err_exists; /* name already exists */
old_name = vm->name;
vm->name = NULL;
if(!(vm->name = strdup(name)))
goto err_strdup; /* out of memory */
/* get new lock */
do_rename = ( vm_file_naming_type != 1 );
if (do_rename) {
old_lock_file = vm->lock_file;
old_lock_fd = vm->lock_fd;
vm->lock_file = NULL;
vm->lock_fd = NULL;
if (vm_get_lock(vm) == -1)
goto err_lock;
}
if (registry_rename(old_name,name,OBJ_TYPE_VM))
goto err_registry; /* failed to rename */
vm_log(vm,"VM","renamed from '%s' to '%s'",old_name,vm->name);
/* rename files (best effort) */
if (do_rename) {
fclose(old_lock_fd);
unlink(old_lock_file);
free(old_lock_file);
vm_close_log(vm);
if ((pattern = dyn_sprintf("%s_%s_*",vm_get_type(vm),old_name)) == NULL)
goto skip_rename;
if (glob(pattern, GLOB_NOSORT, NULL, &globbuf) != 0)
goto skip_rename;
for (i = 0; i < globbuf.gl_pathc; i++) {
if ((filename = dyn_sprintf("%s_%s_%s",vm_get_type(vm),vm->name,globbuf.gl_pathv[i] + strlen(pattern) - 1)) == NULL)
break; /* out of memory */
rename(globbuf.gl_pathv[i], filename);
free(filename);
}
globfree(&globbuf);
skip_rename:
free(pattern);
vm_reopen_log(vm);
}
free(old_name);
return(0); // done
err_registry:
err_lock:
err_strdup:
free(vm->name);
vm->name = old_name;
if (do_rename) {
vm_release_lock(vm,TRUE);
vm->lock_file = old_lock_file;
vm->lock_fd = old_lock_fd;
}
err_exists:
err_not_stopped:
err_invalid:
return(-1);
}
