static int
sysctl_vfs_generic_conf(SYSCTLFN_ARGS)
{
struct vfsconf vfc;
extern const char * const mountcompatnames[];
extern int nmountcompatnames;
struct sysctlnode node;
struct vfsops *vfsp;
u_int vfsnum;
if (namelen != 1)
return (ENOTDIR);
vfsnum = name[0];
if (vfsnum >= nmountcompatnames ||
mountcompatnames[vfsnum] == NULL)
return (EOPNOTSUPP);
vfsp = vfs_getopsbyname(mountcompatnames[vfsnum]);
if (vfsp == NULL)
return (EOPNOTSUPP);
vfc.vfc_vfsops = vfsp;
strncpy(vfc.vfc_name, vfsp->vfs_name, sizeof(vfc.vfc_name));
vfc.vfc_typenum = vfsnum;
vfc.vfc_refcount = vfsp->vfs_refcount;
vfc.vfc_flags = 0;
vfc.vfc_mountroot = vfsp->vfs_mountroot;
vfc.vfc_next = NULL;
vfs_delref(vfsp);
node = *rnode;
node.sysctl_data = &vfc;
return (sysctl_lookup(SYSCTLFN_CALL(&node)));
}
void
cpu_rootconf(void)
{
struct dev_data *dd;
struct device *dv;
struct vfsops *vops;
/*
* Find boot device.
*/
if ((bootdev & B_MAGICMASK) != B_DEVMAGIC) {
printf("WARNING: boot program didn't supply boot device.\n");
printf("Please update your boot program.\n");
} else {
findbootdev();
if (booted_device == NULL) {
printf("WARNING: can't find match for bootdev:\n");
printf(
"type = %d, ctlr = %d, slave = %d, punit = %d, part = %d\n",
B_TYPE(bootdev), B_ADAPTOR(bootdev),
B_CONTROLLER(bootdev), B_UNIT(bootdev),
B_PARTITION(bootdev));
bootdev = 0; /* invalidate bootdev */
} else {
printf("boot device: %s\n", booted_device->dv_xname);
}
}
dv = booted_device;
/*
* If wild carded root device and wired down NFS root file system,
* pick the network interface device to use.
*/
if (rootspec == NULL) {
vops = vfs_getopsbyname("nfs");
if (vops != NULL && vops->vfs_mountroot == mountroot) {
for (dd = LIST_FIRST(&dev_data_list);
dd != NULL; dd = LIST_NEXT(dd, dd_list)) {
if (device_class(dd->dd_dev) == DV_IFNET) {
/* Got it! */
dv = dd->dd_dev;
break;
}
}
if (dd == NULL) {
printf("no network interface for NFS root");
dv = NULL;
}
}
}
/*
* If bootdev is bogus, ask the user anyhow.
*/
if (bootdev == 0)
boothowto |= RB_ASKNAME;
/*
* If we booted from tape, ask the user.
*/
if (booted_device != NULL && device_class(booted_device) == DV_TAPE)
boothowto |= RB_ASKNAME;
setroot(dv, booted_partition);
/*
* Set bootdev based on what we found as the root.
* This is given to the boot program when we reboot.
*/
setbootdev();
}
