/* ioctl routine */
int
vinumioctl(dev_t dev,
u_long cmd,
caddr_t data,
int flag,
struct thread *td)
{
unsigned int objno;
int error = 0;
struct sd *sd;
struct plex *plex;
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 */
/* First, decide what we're looking at */
switch (DEVTYPE(dev)) {
case VINUM_SUPERDEV_TYPE: /* ordinary super device */
ioctl_reply = (struct _ioctl_reply *) data; /* save the address to reply to */
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, */
ioctl_reply->error = parse_user_config((char *) data, /* update the config */
&keyword_set);
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(*(int *) data); /* just lock it. Parameter is 'force' */
/*
* 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_allocated) /* can't do it */
return ENXIO; /* 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_allocated) /* can't do it */
return ENXIO; /* 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_allocated) /* can't do it */
return ENXIO; /* 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_allocated) /* can't do it */
return ENXIO; /* 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_allocated) /* plex doesn't exist */
||(sdno >= PLEX[index].subdisks)) /* or it doesn't have this many subdisks */
return ENXIO; /* bang */
bcopy(&SD[PLEX[index].sdnos[sdno]], /* copy the config item out */
data,
sizeof(struct _sd));
return 0;
/*
* We get called in two places: one from the
* userland config routines, which call us
* to complete the config and save it. This
* call supplies the value 0 as a parameter.
*
* The other place is from the user "saveconfig"
* routine, which can only work if we're *not*
* configuring. In this case, supply parameter 1.
*/
case VINUM_SAVECONFIG:
if (VFLAGS & VF_CONFIGURING) { /* must be us, the others are asleep */
if (*(int *) data == 0) /* finish config */
finish_config(1); /* finish the configuration and update it */
else
return EBUSY; /* can't do it now */
}
save_config(); /* save configuration to disk */
return 0;
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 */
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(0)) { /* if the volumes are 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
*/
free_vinum(1); /* clean up everything */
log(LOG_NOTICE, "vinum: CONFIGURATION OBLITERATED\n");
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;
/*
* Set state by force, without changing
* anything else.
*/
case VINUM_SETSTATE_FORCE:
setstate_by_force((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_allocated) /* 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_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;
case VINUM_DAEMON:
vinum_daemon(); /* perform the daemon */
return 0;
case VINUM_FINDDAEMON: /* check for presence of daemon */
return vinum_finddaemon();
return 0;
case VINUM_SETDAEMON: /* set daemon flags */
return vinum_setdaemonopts(*(int *) data);
case VINUM_GETDAEMON: /* get daemon flags */
*(int *) data = daemon_options;
return 0;
case VINUM_PARITYOP: /* check/rebuild RAID-4/5 parity */
parityops((struct vinum_ioctl_msg *) data);
return 0;
/* move an object */
case VINUM_MOVE:
moveobject((struct vinum_ioctl_msg *) data);
return 0;
default:
/* FALLTHROUGH */
break;
}
case VINUM_DRIVE_TYPE:
default:
log(LOG_WARNING,
"vinumioctl: invalid ioctl from process %d (%s): %lx\n",
curthread->td_proc->p_pid,
curthread->td_proc->p_comm,
cmd);
return EINVAL;
case VINUM_SD_TYPE:
case VINUM_RAWSD_TYPE:
objno = Sdno(dev);
sd = &SD[objno];
switch (cmd) {
case DIOCGDINFO: /* get disk label */
get_volume_label(sd->name, 1, sd->sectors, (struct disklabel *) data);
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 */
default:
return ENOTTY; /* not my kind of ioctl */
}
return 0; /* pretend we did it */
case VINUM_RAWPLEX_TYPE:
case VINUM_PLEX_TYPE:
objno = Plexno(dev);
plex = &PLEX[objno];
switch (cmd) {
case DIOCGDINFO: /* get disk label */
get_volume_label(plex->name, 1, plex->length, (struct disklabel *) data);
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 */
default:
return ENOTTY; /* not my kind of ioctl */
}
return 0; /* pretend we did it */
case VINUM_VOLUME_TYPE:
objno = Volno(dev);
if ((unsigned) objno >= (unsigned) vinum_conf.volumes_allocated) /* not a valid volume */
return ENXIO;
vol = &VOL[objno];
if (vol->state != volume_up) /* not up, */
return EIO; /* I/O error */
switch (cmd) {
case DIOCGMEDIASIZE:
*(off_t *)data = vol->size << DEV_BSHIFT;
break;
case DIOCGSECTORSIZE:
*(u_int *)data = DEV_BSIZE;
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 */
}
/* ioctl routine */
int
vinumioctl(struct dev_ioctl_args *ap)
{
cdev_t dev = ap->a_head.a_dev;
u_long cmd = ap->a_cmd;
caddr_t data = ap->a_data;
int error;
unsigned int index; /* for transferring config info */
unsigned int sdno; /* for transferring config info */
unsigned int objno;
struct volume *vol;
struct partinfo *dpart;
int fe; /* free list element number */
struct _ioctl_reply *ioctl_reply; /* struct to return */
error = 0;
/* First, decide what we're looking at */
switch (DEVTYPE(dev)) {
case VINUM_SUPERDEV_TYPE: /* ordinary super device */
ioctl_reply = (struct _ioctl_reply *) data; /* save the address to reply to */
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;
break;
#endif
case VINUM_CREATE: /* create a vinum object */
error = lock_config(); /* get the config for us alone */
if (error) /* can't do it, */
break;
error = setjmp(command_fail); /* come back here on error */
if (error == 0) /* first time, */
ioctl_reply->error = parse_user_config((char *) data, /* update the config */
&keyword_set);
else if (ioctl_reply->error == 0) { /* longjmp, but no error status */
error = 0;
ioctl_reply->error = EINVAL; /* note that something's up */
ioctl_reply->msg[0] = '\0'; /* no message? */
}
unlock_config();
break;
case VINUM_GETCONFIG: /* get the configuration information */
bcopy(&vinum_conf, data, sizeof(vinum_conf));
break;
/* start configuring the subsystem */
case VINUM_STARTCONFIG:
error = start_config(*(int *) data); /* just lock it. Parameter is 'force' */
break;
case VINUM_DRIVECONFIG:
/*
* 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
*/
index = *(int *) data;
if (index >= (unsigned)vinum_conf.drives_allocated) {
error = ENXIO;
} else {
bcopy(&DRIVE[index], data, sizeof(struct drive));
}
break;
case VINUM_SDCONFIG:
index = *(int *) data;
if (index >= (unsigned) vinum_conf.subdisks_allocated) {
error = ENXIO;
} else {
bcopy(&SD[index], data, sizeof(struct sd));
}
break;
case VINUM_PLEXCONFIG:
index = *(int *) data;
if (index >= (unsigned) vinum_conf.plexes_allocated) {
error = ENXIO;
} else {
bcopy(&PLEX[index], data, sizeof(struct plex));
}
break;
case VINUM_VOLCONFIG:
index = *(int *) data;
if (index >= (unsigned) vinum_conf.volumes_allocated) {
error = ENXIO;
} else {
bcopy(&VOL[index], data, sizeof(struct volume));
}
break;
case VINUM_PLEXSDCONFIG:
index = ((int *)data)[0]; /* get the plex index */
sdno = ((int *)data)[1]; /* and the sd index */
if ((index >= (unsigned) vinum_conf.plexes_allocated)
||(sdno >= PLEX[index].subdisks)) {
error = ENXIO;
} else {
bcopy(&SD[PLEX[index].sdnos[sdno]], data, sizeof(struct sd));
}
break;
case VINUM_SAVECONFIG:
/*
* We get called in two places: one from the
* userland config routines, which call us
* to complete the config and save it. This
* call supplies the value 0 as a parameter.
*
* The other place is from the user "saveconfig"
* routine, which can only work if we're *not*
* configuring. In this case, supply parameter 1.
*/
if (VFLAGS & VF_CONFIGURING) { /* must be us, the others are asleep */
if (*(int *) data == 0) /* finish config */
finish_config(1); /* finish the configuration and update it */
else
error = EBUSY;
}
if (error == 0)
save_config(); /* save configuration to disk */
break;
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 */
save_config(); /* save configuration to disk */
} else {
error = EINVAL; /* release what config? */
}
break;
case VINUM_INIT:
ioctl_reply = (struct _ioctl_reply *) data; /* reinstate the address to reply to */
ioctl_reply->error = 0;
break;
case VINUM_RESETCONFIG:
if (vinum_inactive(0)) { /* if the volumes are 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
*/
free_vinum(1); /* clean up everything */
log(LOG_NOTICE, "vinum: CONFIGURATION OBLITERATED\n");
ioctl_reply = (struct _ioctl_reply *) data; /* reinstate the address to reply to */
ioctl_reply->error = 0;
} else {
error = EBUSY;
}
case VINUM_SETSTATE:
setstate((struct vinum_ioctl_msg *) data); /* set an object state */
break;
/*
* Set state by force, without changing
* anything else.
*/
case VINUM_SETSTATE_FORCE:
setstate_by_force((struct vinum_ioctl_msg *) data); /* set an object state */
break;
#ifdef VINUMDEBUG
case VINUM_MEMINFO:
vinum_meminfo(data);
break;
case VINUM_MALLOCINFO:
error = vinum_mallocinfo(data);
break;
case VINUM_RQINFO:
error = vinum_rqinfo(data);
break;
#endif
case VINUM_REMOVE:
remove((struct vinum_ioctl_msg *) data); /* remove an object */
break;
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_allocated) /* plex doesn't exist */
||(DRIVE[index].state == drive_unallocated)) {
error = ENODEV;
} else if (fe >= DRIVE[index].freelist_entries) {
error = ENOENT;
} else {
bcopy(&DRIVE[index].freelist[fe], data,
sizeof(struct drive_freelist));
}
break;
case VINUM_RESETSTATS:
resetstats((struct vinum_ioctl_msg *) data); /* reset object stats */
break;
/* attach an object to a superordinate object */
case VINUM_ATTACH:
attachobject((struct vinum_ioctl_msg *) data);
break;
/* detach an object from a superordinate object */
case VINUM_DETACH:
detachobject((struct vinum_ioctl_msg *) data);
break;
/* rename an object */
case VINUM_RENAME:
renameobject((struct vinum_rename_msg *) data);
break;
/* replace an object */
case VINUM_REPLACE:
replaceobject((struct vinum_ioctl_msg *) data);
break;
case VINUM_DAEMON:
vinum_daemon(); /* perform the daemon */
break;
case VINUM_FINDDAEMON: /* check for presence of daemon */
error = vinum_finddaemon();
break;
case VINUM_SETDAEMON: /* set daemon flags */
error = vinum_setdaemonopts(*(int *) data);
break;
case VINUM_GETDAEMON: /* get daemon flags */
*(int *) data = daemon_options;
break;
case VINUM_PARITYOP: /* check/rebuild RAID-4/5 parity */
parityops((struct vinum_ioctl_msg *) data);
break;
/* move an object */
case VINUM_MOVE:
moveobject((struct vinum_ioctl_msg *) data);
break;
default:
error = EINVAL;
break;
}
break;
case VINUM_LABEL:
case VINUM_DRIVE_TYPE:
case VINUM_SD_TYPE:
case VINUM_RAWSD_TYPE:
case VINUM_RAWPLEX_TYPE:
case VINUM_PLEX_TYPE:
error = EINVAL;
break;
case VINUM_VOLUME_TYPE:
objno = Volno(dev);
if ((unsigned)objno >= (unsigned)vinum_conf.volumes_allocated) {
error = ENXIO;
break;
}
vol = &VOL[objno];
if (vol->state != volume_up) {
error = EIO;
break;
}
switch(cmd) {
case DIOCGPART:
dpart = (void *)data;
bzero(dpart, sizeof(*dpart));
dpart->media_offset = 0;
dpart->media_size = (u_int64_t)vol->size * DEV_BSIZE;
dpart->media_blocks = vol->size;
dpart->media_blksize = DEV_BSIZE;
dpart->fstype = FS_BSDFFS;
break;
default:
error = EINVAL;
}
break;
default:
error = EINVAL;
break;
}
if (error) {
log(LOG_WARNING,
"vinumioctl: invalid ioctl from process %d (%s): %lx\n",
curproc->p_pid,
curproc->p_comm,
cmd);
}
return error;
}