d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
5ebfc07dce
freebsd-dev/sys/dev/vinum/vinumioctl.c
Greg Lehey 721fbc5ae0 config.c: 
config_drive:
    Catch an instance of anonymous drives.  Doubtless many remain.

interrupt.c:
  complete_rqe:
    Call logrq to log iodone events if DEBUG_LASTREQS is set.

    Call set_sd_state with setstate_noupdate to avoid buffered I/O out
    of interrupt context.

    Use define DEBUG_RESID instead of constant.

memory.c:
  Remove dead expandrq() function

  Malloc:
    Remove directory component of file names in malloc table.

  Add function vinum_rqinfo (part of the request tracing stuff).

request.c:
  Add function logrq (part of the request tracing stuff).

  vinumstrategy:
    Check whether config needs to be written to disk, do it if so.
    This is a stopgap until the Vinum daemon (bacchusd?  oenologistd?)
    is written.

    If DEBUG_LASTREQS is set, call logrq to log user buffer headers.

  launch_requests:
    Correct format of debug output to console.

    If DEBUG_LASTREQS is set, call logrq to log request elements.

request.h:
  Add definitions for request trace.

state.c:
  set_sd_state:
    Check flags for setstate_noupdate.  If set, don't write the config
    to disk, just set global VF_DIRTYCONFIG flag.  This is part of the
    kludge to avoid writing config from an interrupt context.

vinumext.h:
    Add declaration for vinum_rqinfo, put inside #ifdef DEBUG
    Remove dead macro expandrq

vinumio.h:
  Increase maximum ioctl reply length to 4 kB if DEBUG is set.
  Define VINUM_RQINFO ioctl if DEBUG is set.

vinumioctl.c:
  vinumioctl:
    Change implementation of VINUM_DEBUG ioctl: use a debug flag
    (DEBUG_REMOTEGDB) to decide whether to go into remote debugging or
    not.

    Implement VINUM_RQINFO.

vinumkw.h:
  Define kw_info even when not debugging.

vinumvar.h:
  Define VF_DIRTYCONFIG
  Add pointers to request info to vinum_info if DEBUG is set.
  Define setstate_noupdate
  Define additional debug bits DEBUG_RESID, DEBUG_LASTREQS and
  DEBUG_REMOTEGDB.
1998-10-21 08:32:32 +00:00

796 lines
25 KiB
C
Raw Blame History

/* 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 1.3 1998/09/29 05:26:37 grog Exp grog $
*/
#define STATIC /* nothing while we're testing XXX */
#define REALLYKERNEL
#include "vinumhdr.h"
#include "sys/sysproto.h" /* for sync(2) */
#ifdef DEBUG
#include <sys/reboot.h>
#include "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 DEBUG
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;
case VINUM_MEMINFO:
vinum_meminfo(data);
return 0;
case VINUM_MALLOCINFO:
return vinum_mallocinfo(data);
case VINUM_RQINFO:
return vinum_rqinfo(data);
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 (); */
}
Reference in New Issue View Git Blame Copy Permalink