Hi,
I recently fat fingered the vm template passed to vmctl and was greeted
with the following error:

  vmctl: start vm command failed: Operation not permitted

I think we can be more specific in order to improve usability:

  vmctl: could not find specified parent template

Comments? OK?

Index: vmctl/vmctl.c
===================================================================
RCS file: /cvs/src/usr.sbin/vmctl/vmctl.c,v
retrieving revision 1.69
diff -u -p -r1.69 vmctl.c
--- vmctl/vmctl.c       22 May 2019 16:19:21 -0000      1.69
+++ vmctl/vmctl.c       5 Aug 2019 15:11:38 -0000
@@ -249,6 +249,10 @@ vm_start_complete(struct imsg *imsg, int
                                    "file");
                                *ret = ENOENT;
                                break;
+                       case VMD_PARENT_INVALID:
+                               warnx("could not find specified parent 
template");
+                               *ret = EINVAL;
+                               break;
                        default:
                                errno = res;
                                warn("start vm command failed");
Index: vmd/vmd.c
===================================================================
RCS file: /cvs/src/usr.sbin/vmd/vmd.c,v
retrieving revision 1.114
diff -u -p -r1.114 vmd.c
--- vmd/vmd.c   28 Jun 2019 13:32:51 -0000      1.114
+++ vmd/vmd.c   5 Aug 2019 15:11:38 -0000
@@ -1373,8 +1373,13 @@ vm_instance(struct privsep *ps, struct v
 
        /* return without error if the parent is NULL (nothing to inherit) */
        if ((vmc->vmc_flags & VMOP_CREATE_INSTANCE) == 0 ||
-           (*vm_parent = vm_getbyname(vmc->vmc_instance)) == NULL)
+           vmc->vmc_instance[0] == '\0')
                return (0);
+
+       if ((*vm_parent = vm_getbyname(vmc->vmc_instance)) == NULL) {
+               errno = VMD_PARENT_INVALID;
+               return (-1);
+       }
 
        errno = 0;
        vmcp = &(*vm_parent)->vm_params;
Index: vmd/vmd.h
===================================================================
RCS file: /cvs/src/usr.sbin/vmd/vmd.h,v
retrieving revision 1.95
diff -u -p -r1.95 vmd.h
--- vmd/vmd.h   17 Jul 2019 05:51:07 -0000      1.95
+++ vmd/vmd.h   5 Aug 2019 15:11:38 -0000
@@ -72,6 +72,7 @@
 #define VMD_VM_STOP_INVALID    1004
 #define VMD_CDROM_MISSING      1005
 #define VMD_CDROM_INVALID      1006
+#define VMD_PARENT_INVALID     1007
 
 /* Image file signatures */
 #define VM_MAGIC_QCOW          "QFI\xfb"

Reply via email to