909 lines
28 KiB
C
909 lines
28 KiB
C
/*
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* XXX replace all the checks on object validity with
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* calls to valid<object>
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*/
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/*-
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* Copyright (c) 1997, 1998, 1999
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* Nan Yang Computer Services Limited. All rights reserved.
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*
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* Parts copyright (c) 1997, 1998 Cybernet Corporation, NetMAX project.
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*
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* Written by Greg Lehey
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*
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* This software is distributed under the so-called ``Berkeley
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* License'':
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Nan Yang Computer
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* Services Limited.
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* 4. Neither the name of the Company nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* This software is provided ``as is'', and any express or implied
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* warranties, including, but not limited to, the implied warranties of
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* merchantability and fitness for a particular purpose are disclaimed.
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* In no event shall the company or contributors be liable for any
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* direct, indirect, incidental, special, exemplary, or consequential
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* damages (including, but not limited to, procurement of substitute
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* goods or services; loss of use, data, or profits; or business
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* interruption) however caused and on any theory of liability, whether
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* in contract, strict liability, or tort (including negligence or
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* otherwise) arising in any way out of the use of this software, even if
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* advised of the possibility of such damage.
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*
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* $Id: vinumioctl.c,v 1.14 2000/10/27 03:07:53 grog Exp grog $
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* $FreeBSD$
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*/
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#include <dev/vinum/vinumhdr.h>
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#include <dev/vinum/request.h>
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#ifdef VINUMDEBUG
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#include <sys/reboot.h>
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#endif
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void attachobject(struct vinum_ioctl_msg *);
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void detachobject(struct vinum_ioctl_msg *);
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void renameobject(struct vinum_rename_msg *);
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void replaceobject(struct vinum_ioctl_msg *);
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void moveobject(struct vinum_ioctl_msg *);
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jmp_buf command_fail; /* return on a failed command */
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/* ioctl routine */
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int
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vinumioctl(dev_t dev,
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u_long cmd,
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caddr_t data,
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int flag,
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struct proc *p)
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{
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unsigned int objno;
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int error = 0;
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struct sd *sd;
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struct plex *plex;
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struct volume *vol;
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unsigned int index; /* for transferring config info */
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unsigned int sdno; /* for transferring config info */
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int fe; /* free list element number */
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struct _ioctl_reply *ioctl_reply = (struct _ioctl_reply *) data; /* struct to return */
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/* First, decide what we're looking at */
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switch (DEVTYPE(dev)) {
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case VINUM_SUPERDEV_TYPE: /* ordinary super device */
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ioctl_reply = (struct _ioctl_reply *) data; /* save the address to reply to */
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error = setjmp(command_fail); /* come back here on error */
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if (error) /* bombed out */
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return 0; /* the reply will contain meaningful info */
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switch (cmd) {
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#ifdef VINUMDEBUG
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case VINUM_DEBUG:
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if (((struct debuginfo *) data)->changeit) /* change debug settings */
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debug = (((struct debuginfo *) data)->param);
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else {
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if (debug & DEBUG_REMOTEGDB)
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boothowto |= RB_GDB; /* serial debug line */
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else
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boothowto &= ~RB_GDB; /* local ddb */
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Debugger("vinum debug");
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}
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ioctl_reply = (struct _ioctl_reply *) data; /* reinstate the address to reply to */
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ioctl_reply->error = 0;
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return 0;
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#endif
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case VINUM_CREATE: /* create a vinum object */
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error = lock_config(); /* get the config for us alone */
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if (error) /* can't do it, */
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return error; /* give up */
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error = setjmp(command_fail); /* come back here on error */
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if (error == 0) /* first time, */
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ioctl_reply->error = parse_user_config((char *) data, /* update the config */
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&keyword_set);
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else if (ioctl_reply->error == 0) { /* longjmp, but no error status */
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ioctl_reply->error = EINVAL; /* note that something's up */
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ioctl_reply->msg[0] = '\0'; /* no message? */
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}
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unlock_config();
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return 0; /* must be 0 to return the real error info */
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case VINUM_GETCONFIG: /* get the configuration information */
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bcopy(&vinum_conf, data, sizeof(vinum_conf));
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return 0;
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/* start configuring the subsystem */
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case VINUM_STARTCONFIG:
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return start_config(*(int *) data); /* just lock it. Parameter is 'force' */
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/*
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* Move the individual parts of the config to user space.
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*
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* Specify the index of the object in the first word of data,
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* and return the object there
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*/
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case VINUM_DRIVECONFIG:
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index = *(int *) data; /* get the index */
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if (index >= (unsigned) vinum_conf.drives_allocated) /* can't do it */
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return ENXIO; /* bang */
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bcopy(&DRIVE[index], data, sizeof(struct _drive)); /* copy the config item out */
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return 0;
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case VINUM_SDCONFIG:
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index = *(int *) data; /* get the index */
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if (index >= (unsigned) vinum_conf.subdisks_allocated) /* can't do it */
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return ENXIO; /* bang */
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bcopy(&SD[index], data, sizeof(struct _sd)); /* copy the config item out */
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return 0;
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case VINUM_PLEXCONFIG:
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index = *(int *) data; /* get the index */
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if (index >= (unsigned) vinum_conf.plexes_allocated) /* can't do it */
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return ENXIO; /* bang */
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bcopy(&PLEX[index], data, sizeof(struct _plex)); /* copy the config item out */
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return 0;
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case VINUM_VOLCONFIG:
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index = *(int *) data; /* get the index */
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if (index >= (unsigned) vinum_conf.volumes_allocated) /* can't do it */
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return ENXIO; /* bang */
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bcopy(&VOL[index], data, sizeof(struct _volume)); /* copy the config item out */
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return 0;
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case VINUM_PLEXSDCONFIG:
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index = *(int *) data; /* get the plex index */
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sdno = ((int *) data)[1]; /* and the sd index */
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if ((index >= (unsigned) vinum_conf.plexes_allocated) /* plex doesn't exist */
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||(sdno >= PLEX[index].subdisks)) /* or it doesn't have this many subdisks */
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return ENXIO; /* bang */
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bcopy(&SD[PLEX[index].sdnos[sdno]], /* copy the config item out */
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data,
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sizeof(struct _sd));
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return 0;
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/*
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* We get called in two places: one from the
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* userland config routines, which call us
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* to complete the config and save it. This
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* call supplies the value 0 as a parameter.
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*
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* The other place is from the user "saveconfig"
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* routine, which can only work if we're *not*
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* configuring. In this case, supply parameter 1.
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*/
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case VINUM_SAVECONFIG:
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if (VFLAGS & VF_CONFIGURING) { /* must be us, the others are asleep */
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if (*(int *) data == 0) /* finish config */
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finish_config(1); /* finish the configuration and update it */
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else
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return EBUSY; /* can't do it now */
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}
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save_config(); /* save configuration to disk */
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return 0;
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case VINUM_RELEASECONFIG: /* release the config */
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if (VFLAGS & VF_CONFIGURING) { /* must be us, the others are asleep */
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finish_config(0); /* finish the configuration, don't change it */
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save_config(); /* save configuration to disk */
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} else
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error = EINVAL; /* release what config? */
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return error;
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case VINUM_INIT:
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ioctl_reply = (struct _ioctl_reply *) data; /* reinstate the address to reply to */
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ioctl_reply->error = 0;
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return 0;
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case VINUM_RESETCONFIG:
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if (vinum_inactive(0)) { /* if the volumes are not active */
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/*
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* Note the open count. We may be called from v, so we'll be open.
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* Keep the count so we don't underflow
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*/
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free_vinum(1); /* clean up everything */
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log(LOG_NOTICE, "vinum: CONFIGURATION OBLITERATED\n");
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ioctl_reply = (struct _ioctl_reply *) data; /* reinstate the address to reply to */
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ioctl_reply->error = 0;
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return 0;
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}
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return EBUSY;
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case VINUM_SETSTATE:
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setstate((struct vinum_ioctl_msg *) data); /* set an object state */
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return 0;
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/*
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* Set state by force, without changing
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* anything else.
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*/
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case VINUM_SETSTATE_FORCE:
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setstate_by_force((struct vinum_ioctl_msg *) data); /* set an object state */
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return 0;
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#ifdef VINUMDEBUG
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case VINUM_MEMINFO:
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vinum_meminfo(data);
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return 0;
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case VINUM_MALLOCINFO:
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return vinum_mallocinfo(data);
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case VINUM_RQINFO:
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return vinum_rqinfo(data);
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#endif
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case VINUM_LABEL: /* label a volume */
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ioctl_reply->error = write_volume_label(*(int *) data); /* index of the volume to label */
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ioctl_reply->msg[0] = '\0'; /* no message */
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return 0;
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case VINUM_REMOVE:
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remove((struct vinum_ioctl_msg *) data); /* remove an object */
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return 0;
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case VINUM_GETFREELIST: /* get a drive free list element */
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index = *(int *) data; /* get the drive index */
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fe = ((int *) data)[1]; /* and the free list element */
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if ((index >= (unsigned) vinum_conf.drives_allocated) /* plex doesn't exist */
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||(DRIVE[index].state == drive_unallocated))
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return ENODEV;
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if (fe >= DRIVE[index].freelist_entries) /* no such entry */
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return ENOENT;
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bcopy(&DRIVE[index].freelist[fe],
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data,
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sizeof(struct drive_freelist));
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return 0;
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case VINUM_RESETSTATS:
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resetstats((struct vinum_ioctl_msg *) data); /* reset object stats */
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return 0;
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/* attach an object to a superordinate object */
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case VINUM_ATTACH:
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attachobject((struct vinum_ioctl_msg *) data);
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return 0;
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/* detach an object from a superordinate object */
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case VINUM_DETACH:
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detachobject((struct vinum_ioctl_msg *) data);
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return 0;
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/* rename an object */
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case VINUM_RENAME:
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renameobject((struct vinum_rename_msg *) data);
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return 0;
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/* replace an object */
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case VINUM_REPLACE:
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replaceobject((struct vinum_ioctl_msg *) data);
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return 0;
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case VINUM_DAEMON:
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vinum_daemon(); /* perform the daemon */
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return 0;
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case VINUM_FINDDAEMON: /* check for presence of daemon */
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return vinum_finddaemon();
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return 0;
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case VINUM_SETDAEMON: /* set daemon flags */
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return vinum_setdaemonopts(*(int *) data);
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case VINUM_GETDAEMON: /* get daemon flags */
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*(int *) data = daemon_options;
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return 0;
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case VINUM_PARITYOP: /* check/rebuild RAID-4/5 parity */
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parityops((struct vinum_ioctl_msg *) data);
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return 0;
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/* move an object */
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case VINUM_MOVE:
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moveobject((struct vinum_ioctl_msg *) data);
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return 0;
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default:
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/* FALLTHROUGH */
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}
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case VINUM_DRIVE_TYPE:
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default:
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log(LOG_WARNING,
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"vinumioctl: invalid ioctl from process %d (%s): %lx\n",
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curproc->p_pid,
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curproc->p_comm,
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cmd);
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return EINVAL;
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case VINUM_SD_TYPE:
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case VINUM_RAWSD_TYPE:
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objno = Sdno(dev);
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sd = &SD[objno];
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switch (cmd) {
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case DIOCGDINFO: /* get disk label */
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get_volume_label(sd->name, 1, sd->sectors, (struct disklabel *) data);
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break;
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/*
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* We don't have this stuff on hardware,
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* so just pretend to do it so that
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* utilities don't get upset.
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*/
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case DIOCWDINFO: /* write partition info */
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case DIOCSDINFO: /* set partition info */
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return 0; /* not a titty */
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default:
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return ENOTTY; /* not my kind of ioctl */
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}
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return 0; /* pretend we did it */
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case VINUM_RAWPLEX_TYPE:
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case VINUM_PLEX_TYPE:
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objno = Plexno(dev);
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plex = &PLEX[objno];
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switch (cmd) {
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case DIOCGDINFO: /* get disk label */
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get_volume_label(plex->name, 1, plex->length, (struct disklabel *) data);
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break;
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/*
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* We don't have this stuff on hardware,
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* so just pretend to do it so that
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* utilities don't get upset.
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*/
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case DIOCWDINFO: /* write partition info */
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case DIOCSDINFO: /* set partition info */
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return 0; /* not a titty */
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default:
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return ENOTTY; /* not my kind of ioctl */
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}
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return 0; /* pretend we did it */
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case VINUM_VOLUME_TYPE:
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objno = Volno(dev);
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if ((unsigned) objno >= (unsigned) vinum_conf.volumes_allocated) /* not a valid volume */
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return ENXIO;
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vol = &VOL[objno];
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if (vol->state != volume_up) /* not up, */
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return EIO; /* I/O error */
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switch (cmd) {
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case DIOCGDINFO: /* get disk label */
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get_volume_label(vol->name, vol->plexes, vol->size, (struct disklabel *) data);
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break;
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/*
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* Care! DIOCGPART returns *pointers* to
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* the caller, so we need to store this crap
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* as well. And yes, we need it.
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*/
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case DIOCGPART: /* get partition information */
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get_volume_label(vol->name, vol->plexes, vol->size, &vol->label);
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((struct partinfo *) data)->disklab = &vol->label;
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((struct partinfo *) data)->part = &vol->label.d_partitions[0];
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break;
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/*
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* We don't have this stuff on hardware,
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* so just pretend to do it so that
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* utilities don't get upset.
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*/
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case DIOCWDINFO: /* write partition info */
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case DIOCSDINFO: /* set partition info */
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return 0; /* not a titty */
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case DIOCWLABEL: /* set or reset label writeable */
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if ((flag & FWRITE) == 0) /* not writeable? */
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return EACCES; /* no, die */
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if (*(int *) data != 0) /* set it? */
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vol->flags |= VF_WLABEL; /* yes */
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else
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vol->flags &= ~VF_WLABEL; /* no, reset */
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break;
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default:
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return ENOTTY; /* not my kind of ioctl */
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}
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break;
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}
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return 0; /* XXX */
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}
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/*
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* The following four functions check the supplied
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* object index and return a pointer to the object
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* if it exists. Otherwise they longjump out via
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* throw_rude_remark.
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*/
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struct drive *
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validdrive(int driveno, struct _ioctl_reply *reply)
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{
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if ((driveno < vinum_conf.drives_allocated)
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&& (DRIVE[driveno].state > drive_referenced))
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return &DRIVE[driveno];
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strcpy(reply->msg, "No such drive");
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reply->error = ENOENT;
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return NULL;
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}
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struct sd *
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validsd(int sdno, struct _ioctl_reply *reply)
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{
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if ((sdno < vinum_conf.subdisks_allocated)
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&& (SD[sdno].state > sd_referenced))
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return &SD[sdno];
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strcpy(reply->msg, "No such subdisk");
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reply->error = ENOENT;
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return NULL;
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}
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struct plex *
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validplex(int plexno, struct _ioctl_reply *reply)
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{
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if ((plexno < vinum_conf.plexes_allocated)
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&& (PLEX[plexno].state > plex_referenced))
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return &PLEX[plexno];
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strcpy(reply->msg, "No such plex");
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reply->error = ENOENT;
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return NULL;
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}
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struct volume *
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validvol(int volno, struct _ioctl_reply *reply)
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{
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if ((volno < vinum_conf.volumes_allocated)
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&& (VOL[volno].state > volume_uninit))
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return &VOL[volno];
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strcpy(reply->msg, "No such volume");
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reply->error = ENOENT;
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return NULL;
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}
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/* reset an object's stats */
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void
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resetstats(struct vinum_ioctl_msg *msg)
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{
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struct _ioctl_reply *reply = (struct _ioctl_reply *) msg;
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switch (msg->type) {
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case drive_object:
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if (msg->index < vinum_conf.drives_allocated) {
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struct drive *drive = &DRIVE[msg->index];
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if (drive->state > drive_referenced) {
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drive->reads = 0; /* number of reads on this drive */
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drive->writes = 0; /* number of writes on this drive */
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drive->bytes_read = 0; /* number of bytes read */
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drive->bytes_written = 0; /* number of bytes written */
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reply->error = 0;
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return;
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}
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reply->error = EINVAL;
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return;
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}
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case sd_object:
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if (msg->index < vinum_conf.subdisks_allocated) {
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struct sd *sd = &SD[msg->index];
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if (sd->state > sd_referenced) {
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sd->reads = 0; /* number of reads on this subdisk */
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sd->writes = 0; /* number of writes on this subdisk */
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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_allocated) {
|
|
struct plex *plex = &PLEX[msg->index];
|
|
if (plex->state > plex_referenced) {
|
|
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->recovered_reads = 0; /* number of recovered read operations */
|
|
plex->degraded_writes = 0; /* number of degraded writes */
|
|
plex->parityless_writes = 0; /* number of parityless writes */
|
|
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_allocated) {
|
|
struct volume *vol = &VOL[msg->index];
|
|
if (vol->state > volume_uninit) {
|
|
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;
|
|
int sdno;
|
|
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) {
|
|
/*
|
|
* We should be more intelligent about this.
|
|
* We should be able to reattach a dead
|
|
* subdisk, but if we want to increase the total
|
|
* number of subdisks, we have a lot of reshuffling
|
|
* to do. XXX
|
|
*/
|
|
if ((plex->organization != plex_concat) /* can't attach to striped and RAID-4/5 */
|
|
&&(!msg->force)) { /* without using force */
|
|
reply->error = EINVAL; /* no message, the user should check */
|
|
strcpy(reply->msg, "Can't attach to this plex organization");
|
|
return;
|
|
}
|
|
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();
|
|
}
|
|
if (sd->state == sd_reviving)
|
|
reply->error = EAGAIN; /* need to revive it */
|
|
else
|
|
reply->error = 0;
|
|
break;
|
|
|
|
case plex_object:
|
|
plex = validplex(msg->index, reply); /* get plex */
|
|
if (plex == NULL)
|
|
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;
|
|
}
|
|
for (sdno = 0; sdno < plex->subdisks; sdno++) {
|
|
sd = &SD[plex->sdnos[sdno]];
|
|
|
|
if (sd->state > sd_down) /* real subdisk, vaguely accessible */
|
|
set_sd_state(plex->sdnos[sdno], sd_stale, setstate_force); /* make it stale */
|
|
}
|
|
set_plex_state(plex->plexno, plex_up, setstate_none); /* update plex state */
|
|
give_plex_to_volume(msg->otherobject, msg->index); /* and give it to the volume */
|
|
update_plex_config(plex->plexno, 0);
|
|
save_config();
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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 detach a drive from 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--;
|
|
if (!bcmp(plex->name, sd->name, strlen(plex->name) + 1))
|
|
/* this subdisk is named after the plex */
|
|
{
|
|
bcopy(sd->name,
|
|
&sd->name[3],
|
|
min(strlen(sd->name) + 1, MAXSDNAME - 3));
|
|
bcopy("ex-", sd->name, 3);
|
|
sd->name[MAXSDNAME - 1] = '\0';
|
|
}
|
|
update_plex_config(plex->plexno, 0);
|
|
if (isstriped(plex)) /* we've just mutilated our plex, */
|
|
set_plex_state(plex->plexno,
|
|
plex_down,
|
|
setstate_force | setstate_configuring);
|
|
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->plex[plexno + 1],
|
|
&vol->plex[plexno],
|
|
(vol->plexes - 1 - plexno) * sizeof(int));
|
|
vol->plexes--;
|
|
vol->last_plex_read = 0; /* don't go beyond the end */
|
|
if (!bcmp(vol->name, plex->name, strlen(vol->name) + 1))
|
|
/* 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) + 1))
|
|
/* subdisk is named after the plex */
|
|
{
|
|
bcopy(sd->name,
|
|
&sd->name[3],
|
|
min(strlen(sd->name) + 1, MAXSDNAME - 3));
|
|
bcopy("ex-", sd->name, 3);
|
|
sd->name[MAXSDNAME - 1] = '\0';
|
|
}
|
|
}
|
|
}
|
|
bcopy(plex->name,
|
|
&plex->name[3],
|
|
min(strlen(plex->name) + 1, MAXPLEXNAME - 3));
|
|
bcopy("ex-", plex->name, 3);
|
|
plex->name[MAXPLEXNAME - 1] = '\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.
|
|
* Currently only for drives.
|
|
* message->index is the drive number of the old drive
|
|
* message->otherobject is the drive number of the new drive
|
|
*/
|
|
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 (); */
|
|
}
|
|
|
|
void
|
|
moveobject(struct vinum_ioctl_msg *msg)
|
|
{
|
|
struct _ioctl_reply *reply = (struct _ioctl_reply *) msg;
|
|
struct drive *drive;
|
|
struct sd *sd;
|
|
|
|
/* Check that our objects are valid (i.e. they exist) */
|
|
drive = validdrive(msg->index, (struct _ioctl_reply *) msg);
|
|
if (drive == NULL)
|
|
return;
|
|
sd = validsd(msg->otherobject, (struct _ioctl_reply *) msg);
|
|
if (sd == NULL)
|
|
return;
|
|
if (sd->driveno == msg->index) /* sd already belongs to drive */
|
|
return;
|
|
|
|
if (sd->state > sd_stale)
|
|
set_sd_state(sd->sdno, sd_stale, setstate_force); /* make the subdisk stale */
|
|
else
|
|
sd->state = sd_empty;
|
|
if (sd->plexno >= 0) /* part of a plex, */
|
|
update_plex_state(sd->plexno); /* update its state */
|
|
|
|
/* Return the space on the old drive */
|
|
if ((sd->driveno >= 0) /* we have a drive, */
|
|
&&(sd->sectors > 0)) /* and some space on it */
|
|
return_drive_space(sd->driveno, /* return the space */
|
|
sd->driveoffset,
|
|
sd->sectors);
|
|
|
|
/* Reassign the old subdisk */
|
|
sd->driveno = msg->index;
|
|
sd->driveoffset = -1; /* let the drive decide where to put us */
|
|
give_sd_to_drive(sd->sdno);
|
|
reply->error = 0;
|
|
}
|
|
|
|
/* Local Variables: */
|
|
/* fill-column: 50 */
|
|
/* End: */
|