c285ca1254
kernel as a pseudo-device. The changes were: - #ifdef DEBUG -> #ifdef VINUMDEBUG - opt_vinum.h for holding above config variable - Fixing up a few stray problems where DEBUG wasn't optional. - config.c -> vinumconfig.c (there's already a config.o) - Other *.c -> vinum*.c (wasn't strictly necessary, but done in case we end up with something else conflicting later on and we might have to have yet more repository copies of files). - include file paths fixups.. (ie: get them all from the kernel tree instead of partly from the kernel and partly from /usr/include/machine) I've spoken with Greg about this.. I hope this doesn't mess him around too much..
799 lines
26 KiB
C
799 lines
26 KiB
C
/* XXX replace all the checks on object validity with
|
|
* calls to valid<object> */
|
|
/*-
|
|
* Copyright (c) 1997, 1998
|
|
* Nan Yang Computer Services Limited. All rights reserved.
|
|
*
|
|
* This software is distributed under the so-called ``Berkeley
|
|
* License'':
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Nan Yang Computer
|
|
* Services Limited.
|
|
* 4. Neither the name of the Company nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* This software is provided ``as is'', and any express or implied
|
|
* warranties, including, but not limited to, the implied warranties of
|
|
* merchantability and fitness for a particular purpose are disclaimed.
|
|
* In no event shall the company or contributors be liable for any
|
|
* direct, indirect, incidental, special, exemplary, or consequential
|
|
* damages (including, but not limited to, procurement of substitute
|
|
* goods or services; loss of use, data, or profits; or business
|
|
* interruption) however caused and on any theory of liability, whether
|
|
* in contract, strict liability, or tort (including negligence or
|
|
* otherwise) arising in any way out of the use of this software, even if
|
|
* advised of the possibility of such damage.
|
|
*
|
|
* $Id: vinumioctl.c,v 1.4 1998/12/28 04:56:24 peter Exp $
|
|
*/
|
|
|
|
#define STATIC /* nothing while we're testing XXX */
|
|
|
|
#define REALLYKERNEL
|
|
#include "opt_vinum.h"
|
|
#include <dev/vinum/vinumhdr.h>
|
|
#include <sys/sysproto.h> /* for sync(2) */
|
|
#ifdef VINUMDEBUG
|
|
#include <sys/reboot.h>
|
|
#include <dev/vinum/request.h>
|
|
#endif
|
|
|
|
jmp_buf command_fail; /* return on a failed command */
|
|
|
|
#if __FreeBSD__ >= 3
|
|
/* Why aren't these declared anywhere? XXX */
|
|
int setjmp(jmp_buf);
|
|
void longjmp(jmp_buf, int);
|
|
#endif
|
|
|
|
/* pointer to ioctl p parameter, to save passing it around */
|
|
struct proc *myproc;
|
|
|
|
int vinum_inactive(void);
|
|
void free_vinum(int);
|
|
void attachobject(struct vinum_ioctl_msg *);
|
|
void detachobject(struct vinum_ioctl_msg *);
|
|
void renameobject(struct vinum_rename_msg *);
|
|
void replaceobject(struct vinum_ioctl_msg *);
|
|
|
|
/* ioctl routine */
|
|
int
|
|
vinumioctl(dev_t dev,
|
|
#if __FreeBSD__ >= 3
|
|
u_long cmd,
|
|
#else
|
|
int cmd,
|
|
#endif
|
|
caddr_t data,
|
|
int flag,
|
|
struct proc *p)
|
|
{
|
|
BROKEN_GDB;
|
|
unsigned int objno;
|
|
int error = 0;
|
|
struct volume *vol;
|
|
unsigned int index; /* for transferring config info */
|
|
unsigned int sdno; /* for transferring config info */
|
|
int fe; /* free list element number */
|
|
struct _ioctl_reply *ioctl_reply = (struct _ioctl_reply *) data; /* struct to return */
|
|
|
|
struct devcode *device = (struct devcode *) &dev;
|
|
|
|
/* First, decide what we're looking at */
|
|
switch (device->type) {
|
|
case VINUM_SUPERDEV_TYPE:
|
|
myproc = p; /* save pointer to process */
|
|
ioctl_reply = (struct _ioctl_reply *) data; /* save the address to reply to */
|
|
error = setjmp(command_fail); /* come back here on error */
|
|
if (error) /* bombed out */
|
|
return 0; /* the reply will contain meaningful info */
|
|
switch (cmd) {
|
|
#ifdef VINUMDEBUG
|
|
case VINUM_DEBUG:
|
|
if (((struct debuginfo *) data)->changeit) /* change debug settings */
|
|
debug = (((struct debuginfo *) data)->param);
|
|
else {
|
|
if (debug & DEBUG_REMOTEGDB)
|
|
boothowto |= RB_GDB; /* serial debug line */
|
|
else
|
|
boothowto &= ~RB_GDB; /* local ddb */
|
|
Debugger("vinum debug");
|
|
}
|
|
ioctl_reply = (struct _ioctl_reply *) data; /* reinstate the address to reply to */
|
|
ioctl_reply->error = 0;
|
|
return 0;
|
|
#endif
|
|
|
|
case VINUM_CREATE: /* create a vinum object */
|
|
error = lock_config(); /* get the config for us alone */
|
|
if (error) /* can't do it, */
|
|
return error; /* give up */
|
|
error = setjmp(command_fail); /* come back here on error */
|
|
if (error == 0) { /* first time, */
|
|
parse_user_config((char *) data, &keyword_set); /* update the config */
|
|
ioctl_reply->error = 0; /* no error if we make it here */
|
|
} else if (ioctl_reply->error == 0) { /* longjmp, but no error status */
|
|
ioctl_reply->error = EINVAL; /* note that something's up */
|
|
ioctl_reply->msg[0] = '\0'; /* no message? */
|
|
}
|
|
unlock_config();
|
|
return 0; /* must be 0 to return the real error info */
|
|
|
|
case VINUM_GETCONFIG: /* get the configuration information */
|
|
bcopy(&vinum_conf, data, sizeof(vinum_conf));
|
|
return 0;
|
|
|
|
/* start configuring the subsystem */
|
|
case VINUM_STARTCONFIG:
|
|
return start_config(); /* just lock it */
|
|
|
|
/* Move the individual parts of the config to user space.
|
|
|
|
* Specify the index of the object in the first word of data,
|
|
* and return the object there
|
|
*/
|
|
case VINUM_DRIVECONFIG:
|
|
index = *(int *) data; /* get the index */
|
|
if (index >= (unsigned) vinum_conf.drives_used) /* can't do it */
|
|
return EFAULT; /* bang */
|
|
bcopy(&DRIVE[index], data, sizeof(struct drive)); /* copy the config item out */
|
|
return 0;
|
|
|
|
case VINUM_SDCONFIG:
|
|
index = *(int *) data; /* get the index */
|
|
if (index >= (unsigned) vinum_conf.subdisks_used) /* can't do it */
|
|
return EFAULT; /* bang */
|
|
bcopy(&SD[index], data, sizeof(struct sd)); /* copy the config item out */
|
|
return 0;
|
|
|
|
case VINUM_PLEXCONFIG:
|
|
index = *(int *) data; /* get the index */
|
|
if (index >= (unsigned) vinum_conf.plexes_used) /* can't do it */
|
|
return EFAULT; /* bang */
|
|
bcopy(&PLEX[index], data, sizeof(struct plex)); /* copy the config item out */
|
|
return 0;
|
|
|
|
case VINUM_VOLCONFIG:
|
|
index = *(int *) data; /* get the index */
|
|
if (index >= (unsigned) vinum_conf.volumes_used) /* can't do it */
|
|
return EFAULT; /* bang */
|
|
bcopy(&VOL[index], data, sizeof(struct volume)); /* copy the config item out */
|
|
return 0;
|
|
|
|
case VINUM_PLEXSDCONFIG:
|
|
index = *(int *) data; /* get the plex index */
|
|
sdno = ((int *) data)[1]; /* and the sd index */
|
|
if ((index >= (unsigned) vinum_conf.plexes_used) /* plex doesn't exist */
|
|
||(sdno >= PLEX[index].subdisks)) /* or it doesn't have this many subdisks */
|
|
return EFAULT; /* bang */
|
|
bcopy(&SD[PLEX[index].sdnos[sdno]], /* copy the config item out */
|
|
data,
|
|
sizeof(struct sd));
|
|
return 0;
|
|
|
|
case VINUM_SAVECONFIG:
|
|
if (VFLAGS & VF_CONFIGURING) { /* must be us, the others are asleep */
|
|
finish_config(1); /* finish the configuration and update it */
|
|
error = save_config(); /* save configuration to disk */
|
|
} else
|
|
error = EINVAL; /* queue up for this one, please */
|
|
return error;
|
|
|
|
case VINUM_RELEASECONFIG: /* release the config */
|
|
if (VFLAGS & VF_CONFIGURING) { /* must be us, the others are asleep */
|
|
finish_config(0); /* finish the configuration, don't change it */
|
|
error = save_config(); /* save configuration to disk */
|
|
} else
|
|
error = EINVAL; /* release what config? */
|
|
return error;
|
|
|
|
case VINUM_INIT:
|
|
ioctl_reply = (struct _ioctl_reply *) data; /* reinstate the address to reply to */
|
|
ioctl_reply->error = 0;
|
|
return 0;
|
|
|
|
case VINUM_RESETCONFIG:
|
|
if (vinum_inactive() && (vinum_conf.opencount < 2)) { /* if we're not active */
|
|
/* Note the open count. We may be called from v, so we'll be open.
|
|
* Keep the count so we don't underflow */
|
|
int oc = vinum_conf.opencount;
|
|
free_vinum(1); /* clean up everything */
|
|
printf("vinum: CONFIGURATION OBLITERATED\n");
|
|
vinum_conf.opencount = oc;
|
|
ioctl_reply = (struct _ioctl_reply *) data; /* reinstate the address to reply to */
|
|
ioctl_reply->error = 0;
|
|
return 0;
|
|
}
|
|
return EBUSY;
|
|
|
|
case VINUM_SETSTATE:
|
|
setstate((struct vinum_ioctl_msg *) data); /* set an object state */
|
|
return 0;
|
|
|
|
#ifdef VINUMDEBUG
|
|
case VINUM_MEMINFO:
|
|
vinum_meminfo(data);
|
|
return 0;
|
|
|
|
case VINUM_MALLOCINFO:
|
|
return vinum_mallocinfo(data);
|
|
|
|
case VINUM_RQINFO:
|
|
return vinum_rqinfo(data);
|
|
#endif
|
|
|
|
case VINUM_LABEL: /* label a volume */
|
|
ioctl_reply->error = write_volume_label(*(int *) data); /* index of the volume to label */
|
|
ioctl_reply->msg[0] = '\0'; /* no message */
|
|
return 0;
|
|
|
|
case VINUM_REMOVE:
|
|
remove((struct vinum_ioctl_msg *) data); /* remove an object */
|
|
return 0;
|
|
|
|
case VINUM_GETFREELIST: /* get a drive free list element */
|
|
index = *(int *) data; /* get the drive index */
|
|
fe = ((int *) data)[1]; /* and the free list element */
|
|
if ((index >= (unsigned) vinum_conf.drives_used) /* plex doesn't exist */
|
|
||(DRIVE[index].state == drive_unallocated))
|
|
return ENODEV;
|
|
if (fe >= DRIVE[index].freelist_entries) /* no such entry */
|
|
return ENOENT;
|
|
bcopy(&DRIVE[index].freelist[fe],
|
|
data,
|
|
sizeof(struct drive_freelist));
|
|
return 0;
|
|
|
|
case VINUM_GETDEFECTIVE: /* get a plex defective area element */
|
|
index = *(int *) data; /* get the plex index */
|
|
fe = ((int *) data)[1]; /* and the region number */
|
|
if ((index >= (unsigned) vinum_conf.plexes_used) /* plex doesn't exist */
|
|
||(PLEX[index].state == plex_unallocated))
|
|
return ENODEV;
|
|
if (fe >= PLEX[index].defective_regions) /* no such entry */
|
|
return ENOENT;
|
|
bcopy(&PLEX[index].defective_region[fe],
|
|
data,
|
|
sizeof(struct plexregion));
|
|
return 0;
|
|
|
|
case VINUM_GETUNMAPPED: /* get a plex unmapped area element */
|
|
index = *(int *) data; /* get the plex index */
|
|
fe = ((int *) data)[1]; /* and the region number */
|
|
if ((index >= (unsigned) vinum_conf.plexes_used) /* plex doesn't exist */
|
|
||(PLEX[index].state == plex_unallocated))
|
|
return ENODEV;
|
|
if (fe >= PLEX[index].unmapped_regions) /* no such entry */
|
|
return ENOENT;
|
|
bcopy(&PLEX[index].unmapped_region[fe],
|
|
data,
|
|
sizeof(struct plexregion));
|
|
return 0;
|
|
|
|
case VINUM_RESETSTATS:
|
|
resetstats((struct vinum_ioctl_msg *) data); /* reset object stats */
|
|
return 0;
|
|
|
|
/* attach an object to a superordinate object */
|
|
case VINUM_ATTACH:
|
|
attachobject((struct vinum_ioctl_msg *) data);
|
|
return 0;
|
|
|
|
/* detach an object from a superordinate object */
|
|
case VINUM_DETACH:
|
|
detachobject((struct vinum_ioctl_msg *) data);
|
|
return 0;
|
|
|
|
/* rename an object */
|
|
case VINUM_RENAME:
|
|
renameobject((struct vinum_rename_msg *) data);
|
|
return 0;
|
|
|
|
/* replace an object */
|
|
case VINUM_REPLACE:
|
|
replaceobject((struct vinum_ioctl_msg *) data);
|
|
return 0;
|
|
|
|
default:
|
|
/* FALLTHROUGH */
|
|
}
|
|
|
|
default:
|
|
#if __FreeBSD__>=3
|
|
printf("vinumioctl: type %d, sd %d, plex %d, major %x, volume %d, command %lx\n",
|
|
device->type,
|
|
device->sd,
|
|
device->plex,
|
|
device->major,
|
|
device->volume,
|
|
cmd); /* XXX */
|
|
|
|
#else
|
|
printf("vinumioctl: type %d, sd %d, plex %d, major %x, volume %d, command %x\n",
|
|
device->type,
|
|
device->sd,
|
|
device->plex,
|
|
device->major,
|
|
device->volume,
|
|
cmd); /* XXX */
|
|
|
|
#endif
|
|
return EINVAL;
|
|
|
|
case VINUM_DRIVE_TYPE:
|
|
case VINUM_PLEX_TYPE:
|
|
return EAGAIN; /* try again next week */
|
|
|
|
case VINUM_SD_TYPE:
|
|
objno = SDNO(dev);
|
|
|
|
switch (cmd) {
|
|
case VINUM_INITSD: /* initialize subdisk */
|
|
return initsd(objno);
|
|
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
break;
|
|
|
|
case VINUM_VOLUME_TYPE:
|
|
objno = VOLNO(dev);
|
|
|
|
if ((unsigned) objno >= (unsigned) vinum_conf.volumes_used) /* not a valid volume */
|
|
return ENXIO;
|
|
vol = &VOL[objno];
|
|
if (vol->state != volume_up) /* not up, */
|
|
return EIO; /* I/O error */
|
|
|
|
switch (cmd) {
|
|
case DIOCGDINFO: /* get disk label */
|
|
get_volume_label(vol, (struct disklabel *) data);
|
|
break;
|
|
|
|
/* Care! DIOCGPART returns *pointers* to
|
|
* the caller, so we need to store this crap as well.
|
|
* And yes, we need it. */
|
|
case DIOCGPART: /* get partition information */
|
|
get_volume_label(vol, &vol->label);
|
|
((struct partinfo *) data)->disklab = &vol->label;
|
|
((struct partinfo *) data)->part = &vol->label.d_partitions[0];
|
|
break;
|
|
|
|
/* We don't have this stuff on hardware,
|
|
* so just pretend to do it so that
|
|
* utilities don't get upset. */
|
|
case DIOCWDINFO: /* write partition info */
|
|
case DIOCSDINFO: /* set partition info */
|
|
return 0; /* not a titty */
|
|
|
|
case DIOCWLABEL: /* set or reset label writeable */
|
|
if ((flag & FWRITE) == 0) /* not writeable? */
|
|
return EACCES; /* no, die */
|
|
if (*(int *) data != 0) /* set it? */
|
|
vol->flags |= VF_WLABEL; /* yes */
|
|
else
|
|
vol->flags &= ~VF_WLABEL; /* no, reset */
|
|
break;
|
|
|
|
default:
|
|
return ENOTTY; /* not my kind of ioctl */
|
|
}
|
|
break;
|
|
}
|
|
return 0; /* XXX */
|
|
}
|
|
|
|
/* The following four functions check the supplied
|
|
* object index and return a pointer to the object
|
|
* if it exists. Otherwise they longjump out via
|
|
* throw_rude_remark */
|
|
struct drive *
|
|
validdrive(int driveno, struct _ioctl_reply *reply)
|
|
{
|
|
if ((driveno < vinum_conf.drives_used)
|
|
&& (DRIVE[driveno].state != drive_unallocated))
|
|
return &DRIVE[driveno];
|
|
strcpy(reply->msg, "No such drive");
|
|
reply->error = ENOENT;
|
|
return NULL;
|
|
}
|
|
|
|
struct sd *
|
|
validsd(int sdno, struct _ioctl_reply *reply)
|
|
{
|
|
if ((sdno < vinum_conf.subdisks_used)
|
|
&& (SD[sdno].state != sd_unallocated))
|
|
return &SD[sdno];
|
|
strcpy(reply->msg, "No such subdisk");
|
|
reply->error = ENOENT;
|
|
return NULL;
|
|
}
|
|
|
|
struct plex *
|
|
validplex(int plexno, struct _ioctl_reply *reply)
|
|
{
|
|
if ((plexno < vinum_conf.plexes_used)
|
|
&& (PLEX[plexno].state != plex_unallocated))
|
|
return &PLEX[plexno];
|
|
strcpy(reply->msg, "No such plex");
|
|
reply->error = ENOENT;
|
|
return NULL;
|
|
}
|
|
|
|
struct volume *
|
|
validvol(int volno, struct _ioctl_reply *reply)
|
|
{
|
|
if ((volno < vinum_conf.volumes_used)
|
|
&& (VOL[volno].state != volume_unallocated))
|
|
return &VOL[volno];
|
|
strcpy(reply->msg, "No such volume");
|
|
reply->error = ENOENT;
|
|
return NULL;
|
|
}
|
|
|
|
/* reset an object's stats */
|
|
void
|
|
resetstats(struct vinum_ioctl_msg *msg)
|
|
{
|
|
struct _ioctl_reply *reply = (struct _ioctl_reply *) msg;
|
|
|
|
switch (msg->type) {
|
|
case drive_object:
|
|
if (msg->index < vinum_conf.drives_used) {
|
|
struct drive *drive = &DRIVE[msg->index];
|
|
if (drive->state != drive_unallocated) {
|
|
drive->reads = 0; /* number of reads on this drive */
|
|
drive->writes = 0; /* number of writes on this drive */
|
|
drive->bytes_read = 0; /* number of bytes read */
|
|
drive->bytes_written = 0; /* number of bytes written */
|
|
reply->error = 0;
|
|
return;
|
|
}
|
|
reply->error = EINVAL;
|
|
return;
|
|
}
|
|
case sd_object:
|
|
if (msg->index < vinum_conf.subdisks_used) {
|
|
struct sd *sd = &SD[msg->index];
|
|
if (sd->state != sd_unallocated) {
|
|
sd->reads = 0; /* number of reads on this subdisk */
|
|
sd->writes = 0; /* number of writes on this subdisk */
|
|
sd->bytes_read = 0; /* number of bytes read */
|
|
sd->bytes_written = 0; /* number of bytes written */
|
|
reply->error = 0;
|
|
return;
|
|
}
|
|
reply->error = EINVAL;
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case plex_object:
|
|
if (msg->index < vinum_conf.plexes_used) {
|
|
struct plex *plex = &PLEX[msg->index];
|
|
if (plex->state != plex_unallocated) {
|
|
plex->reads = 0;
|
|
plex->writes = 0; /* number of writes on this plex */
|
|
plex->bytes_read = 0; /* number of bytes read */
|
|
plex->bytes_written = 0; /* number of bytes written */
|
|
plex->multiblock = 0; /* requests that needed more than one block */
|
|
plex->multistripe = 0; /* requests that needed more than one stripe */
|
|
reply->error = 0;
|
|
return;
|
|
}
|
|
reply->error = EINVAL;
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case volume_object:
|
|
if (msg->index < vinum_conf.volumes_used) {
|
|
struct volume *vol = &VOL[msg->index];
|
|
if (vol->state != volume_unallocated) {
|
|
vol->bytes_read = 0; /* number of bytes read */
|
|
vol->bytes_written = 0; /* number of bytes written */
|
|
vol->reads = 0; /* number of reads on this volume */
|
|
vol->writes = 0; /* number of writes on this volume */
|
|
vol->recovered_reads = 0; /* reads recovered from another plex */
|
|
reply->error = 0;
|
|
return;
|
|
}
|
|
reply->error = EINVAL;
|
|
return;
|
|
}
|
|
case invalid_object: /* can't get this */
|
|
reply->error = EINVAL;
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* attach an object to a superior object */
|
|
void
|
|
attachobject(struct vinum_ioctl_msg *msg)
|
|
{
|
|
struct _ioctl_reply *reply = (struct _ioctl_reply *) msg;
|
|
struct sd *sd;
|
|
struct plex *plex;
|
|
struct volume *vol;
|
|
|
|
switch (msg->type) {
|
|
case drive_object: /* you can't attach a drive to anything */
|
|
case volume_object: /* nor a volume */
|
|
case invalid_object: /* "this can't happen" */
|
|
reply->error = EINVAL;
|
|
reply->msg[0] = '\0'; /* vinum(8) doesn't do this */
|
|
return;
|
|
|
|
case sd_object:
|
|
sd = validsd(msg->index, reply);
|
|
if (sd == NULL) /* not a valid subdisk */
|
|
return;
|
|
plex = validplex(msg->otherobject, reply);
|
|
if (plex) {
|
|
if (sd->plexno >= 0) { /* already belong to a plex */
|
|
reply->error = EBUSY; /* no message, the user should check */
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
sd->plexoffset = msg->offset; /* this is where we want it */
|
|
set_sd_state(sd->sdno, sd_stale, setstate_force); /* make sure it's stale */
|
|
give_sd_to_plex(plex->plexno, sd->sdno); /* and give it to the plex */
|
|
update_sd_config(sd->sdno, 0);
|
|
save_config();
|
|
reply->error = 0;
|
|
}
|
|
break;
|
|
|
|
case plex_object:
|
|
plex = validplex(msg->index, reply); /* get plex */
|
|
if (plex == NULL)
|
|
return;
|
|
if (plex->organization != plex_concat) { /* can't attach to striped and raid-5 */
|
|
reply->error = EINVAL; /* no message, the user should check */
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
vol = validvol(msg->otherobject, reply); /* and volume information */
|
|
if (vol) {
|
|
if ((vol->plexes == MAXPLEX) /* we have too many already */
|
|
||(plex->volno >= 0)) { /* or the plex has an owner */
|
|
reply->error = EINVAL; /* no message, the user should check */
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
set_plex_state(plex->plexno, plex_down, setstate_force); /* make sure it's down */
|
|
give_plex_to_volume(msg->otherobject, msg->index); /* and give it to the volume */
|
|
update_plex_config(plex->plexno, 0);
|
|
save_config();
|
|
if (plex->state == plex_reviving)
|
|
reply->error = EAGAIN; /* need to revive it */
|
|
else
|
|
reply->error = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* detach an object from a superior object */
|
|
void
|
|
detachobject(struct vinum_ioctl_msg *msg)
|
|
{
|
|
struct _ioctl_reply *reply = (struct _ioctl_reply *) msg;
|
|
struct sd *sd;
|
|
struct plex *plex;
|
|
struct volume *vol;
|
|
int sdno;
|
|
int plexno;
|
|
|
|
switch (msg->type) {
|
|
case drive_object: /* you can't attach a drive to anything */
|
|
case volume_object: /* nor a volume */
|
|
case invalid_object: /* "this can't happen" */
|
|
reply->error = EINVAL;
|
|
reply->msg[0] = '\0'; /* vinum(8) doesn't do this */
|
|
return;
|
|
|
|
case sd_object:
|
|
sd = validsd(msg->index, reply);
|
|
if (sd == NULL)
|
|
return;
|
|
if (sd->plexno < 0) { /* doesn't belong to a plex */
|
|
reply->error = ENOENT;
|
|
strcpy(reply->msg, "Subdisk is not attached");
|
|
return;
|
|
} else { /* valid plex number */
|
|
plex = &PLEX[sd->plexno];
|
|
if ((!msg->force) /* don't force things */
|
|
&&((plex->state == plex_up) /* and the plex is up */
|
|
||((plex->state == plex_flaky) && sd->state == sd_up))) { /* or flaky with this sd up */
|
|
reply->error = EBUSY; /* we need this sd */
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
sd->plexno = -1; /* anonymous sd */
|
|
if (plex->subdisks == 1) { /* this was the only subdisk */
|
|
Free(plex->sdnos); /* free the subdisk array */
|
|
plex->sdnos = NULL; /* and note the fact */
|
|
plex->subdisks_allocated = 0; /* no subdisk space */
|
|
} else {
|
|
for (sdno = 0; sdno < plex->subdisks; sdno++) {
|
|
if (plex->sdnos[sdno] == msg->index) /* found our subdisk */
|
|
break;
|
|
}
|
|
if (sdno < (plex->subdisks - 1)) /* not the last one, compact */
|
|
bcopy(&plex->sdnos[sdno + 1],
|
|
&plex->sdnos[sdno],
|
|
(plex->subdisks - 1 - sdno) * sizeof(int));
|
|
}
|
|
plex->subdisks--;
|
|
rebuild_plex_unmappedlist(plex); /* rebuild the unmapped list */
|
|
if (!bcmp(plex->name, sd->name, strlen(plex->name))) { /* this subdisk is named after the plex */
|
|
bcopy(sd->name,
|
|
&sd->name[3],
|
|
min(strlen(sd->name), MAXSDNAME - 3));
|
|
bcopy("ex-", sd->name, 3);
|
|
sd->name[MAXSDNAME - 1] = '\0';
|
|
}
|
|
update_plex_config(plex->plexno, 0);
|
|
if ((plex->organization == plex_striped) /* we've just mutilated our plex, */
|
|
||(plex->organization == plex_striped)) /* the data no longer matches */
|
|
set_plex_state(plex->plexno,
|
|
plex_down,
|
|
setstate_force | setstate_configuring);
|
|
update_sd_config(sd->sdno, 0);
|
|
save_config();
|
|
reply->error = 0;
|
|
}
|
|
return;
|
|
|
|
case plex_object:
|
|
plex = validplex(msg->index, reply); /* get plex */
|
|
if (plex == NULL)
|
|
return;
|
|
if (plex->volno >= 0) {
|
|
int volno = plex->volno;
|
|
|
|
vol = &VOL[volno];
|
|
if ((!msg->force) /* don't force things */
|
|
&&((vol->state == volume_up) /* and the volume is up */
|
|
&&(vol->plexes == 1))) { /* and this is the last plex */
|
|
/* XXX As elsewhere, check whether we will lose
|
|
* mapping by removing this plex */
|
|
reply->error = EBUSY; /* we need this plex */
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
plex->volno = -1; /* anonymous plex */
|
|
for (plexno = 0; plexno < vol->plexes; plexno++) {
|
|
if (vol->plex[plexno] == msg->index) /* found our plex */
|
|
break;
|
|
}
|
|
if (plexno < (vol->plexes - 1)) /* not the last one, compact */
|
|
bcopy(&vol[plexno + 1], &vol[plexno], (vol->plexes - 1 - plexno) * sizeof(int));
|
|
vol->plexes--;
|
|
if (!bcmp(vol->name, plex->name, strlen(vol->name))) { /* this plex is named after the volume */
|
|
/* First, check if the subdisks are the same */
|
|
if (msg->recurse) {
|
|
int sdno;
|
|
|
|
for (sdno = 0; sdno < plex->subdisks; sdno++) {
|
|
struct sd *sd = &SD[plex->sdnos[sdno]];
|
|
|
|
if (!bcmp(plex->name, sd->name, strlen(plex->name))) { /* subdisk is named after the plex */
|
|
bcopy(sd->name, &sd->name[3], min(strlen(sd->name), MAXSDNAME - 3));
|
|
bcopy("ex-", sd->name, 3);
|
|
sd->name[MAXSDNAME - 1] = '\0';
|
|
}
|
|
}
|
|
}
|
|
bcopy(plex->name, &plex->name[3], min(strlen(plex->name), MAXPLEXNAME - 3));
|
|
bcopy("ex-", plex->name, 3);
|
|
plex->name[MAXPLEXNAME - 1] = '\0';
|
|
}
|
|
update_plex_config(plex->plexno, 0);
|
|
update_volume_config(volno, 0);
|
|
save_config();
|
|
reply->error = 0;
|
|
} else {
|
|
reply->error = ENOENT;
|
|
strcpy(reply->msg, "Plex is not attached");
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
renameobject(struct vinum_rename_msg *msg)
|
|
{
|
|
struct _ioctl_reply *reply = (struct _ioctl_reply *) msg;
|
|
struct drive *drive;
|
|
struct sd *sd;
|
|
struct plex *plex;
|
|
struct volume *vol;
|
|
|
|
switch (msg->type) {
|
|
case drive_object: /* you can't attach a drive to anything */
|
|
if (find_drive(msg->newname, 0) >= 0) { /* we have that name already, */
|
|
reply->error = EEXIST;
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
drive = validdrive(msg->index, reply);
|
|
if (drive) {
|
|
bcopy(msg->newname, drive->label.name, MAXDRIVENAME);
|
|
save_config();
|
|
reply->error = 0;
|
|
}
|
|
return;
|
|
|
|
case sd_object: /* you can't attach a subdisk to anything */
|
|
if (find_subdisk(msg->newname, 0) >= 0) { /* we have that name already, */
|
|
reply->error = EEXIST;
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
sd = validsd(msg->index, reply);
|
|
if (sd) {
|
|
bcopy(msg->newname, sd->name, MAXSDNAME);
|
|
update_sd_config(sd->sdno, 0);
|
|
save_config();
|
|
reply->error = 0;
|
|
}
|
|
return;
|
|
|
|
case plex_object: /* you can't attach a plex to anything */
|
|
if (find_plex(msg->newname, 0) >= 0) { /* we have that name already, */
|
|
reply->error = EEXIST;
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
plex = validplex(msg->index, reply);
|
|
if (plex) {
|
|
bcopy(msg->newname, plex->name, MAXPLEXNAME);
|
|
update_plex_config(plex->plexno, 0);
|
|
save_config();
|
|
reply->error = 0;
|
|
}
|
|
return;
|
|
|
|
case volume_object: /* you can't attach a volume to anything */
|
|
if (find_volume(msg->newname, 0) >= 0) { /* we have that name already, */
|
|
reply->error = EEXIST;
|
|
reply->msg[0] = '\0';
|
|
return;
|
|
}
|
|
vol = validvol(msg->index, reply);
|
|
if (vol) {
|
|
bcopy(msg->newname, vol->name, MAXVOLNAME);
|
|
update_volume_config(msg->index, 0);
|
|
save_config();
|
|
reply->error = 0;
|
|
}
|
|
return;
|
|
|
|
case invalid_object:
|
|
reply->error = EINVAL;
|
|
reply->msg[0] = '\0';
|
|
}
|
|
}
|
|
|
|
/* Replace one object with another */
|
|
void
|
|
replaceobject(struct vinum_ioctl_msg *msg)
|
|
{
|
|
struct _ioctl_reply *reply = (struct _ioctl_reply *) msg;
|
|
|
|
reply->error = ENODEV; /* until I know how to do this */
|
|
strcpy(reply->msg, "replace not implemented yet");
|
|
/* save_config (); */
|
|
}
|