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diff --git a/lkm/vinum/vinumext.h b/lkm/vinum/vinumext.h
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+/*-
+ * 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: vinumext.h,v 1.14 1998/08/11 00:03:57 grog Exp grog $
+ */
+
+/* vinumext.h: external definitions */
+
+extern struct _vinum_conf vinum_conf;			    /* configuration information */
+
+#ifdef DEBUG
+extern debug;						    /* debug flags */
+#endif
+
+#define CHECKALLOC(ptr, msg) \
+  if (ptr == NULL) \
+    { \
+    printf (msg); \
+    longjmp (command_fail, -1); \
+    }
+#ifndef KERNEL
+struct vnode;
+struct proc;
+#endif
+
+#ifdef KERNEL
+int give_sd_to_plex(int plexno, int sdno);
+int give_plex_to_volume(int volno, int plexno);
+int check_drive(char *);
+enum drive_label_info read_drive_label(struct drive *drive);
+int parse_config(char *, struct keywordset *);
+int parse_user_config(char *cptr, struct keywordset *keyset);
+u_int64_t sizespec(char *spec);
+int volume_index(struct volume *volume);
+int plex_index(struct plex *plex);
+int sd_index(struct sd *sd);
+int drive_index(struct drive *drive);
+int my_plex(int volno, int plexno);
+int my_sd(int plexno, int sdno);
+int get_empty_drive(void);
+int find_drive(const char *name, int create);
+int find_drive_by_dev(const char *devname, int create);
+int get_empty_sd(void);
+int find_subdisk(const char *name, int create);
+void free_sd(int sdno);
+void free_volume(int volno);
+int get_empty_plex(void);
+int find_plex(const char *name, int create);
+void free_plex(int plexno);
+int get_empty_volume(void);
+int find_volume(const char *name, int create);
+void config_subdisk(void);
+void config_plex(void);
+void config_volume(void);
+void config_drive(void);
+void updateconfig(int);
+void update_sd_config(int sdno, int kernelstate);
+void update_plex_config(int plexno, int kernelstate);
+void update_volume_config(int volno, int kernelstate);
+void update_config(void);
+void drive_io_done(struct buf *);
+int save_config(void);
+void write_config(char *, int);
+int start_config(void);
+void finish_config(int);
+void remove(struct vinum_ioctl_msg *msg);
+void remove_drive_entry(int driveno, int force, int recurse);
+void remove_sd_entry(int sdno, int force, int recurse);
+void remove_plex_entry(int plexno, int force, int recurse);
+void remove_volume_entry(int volno, int force, int recurse);
+
+void checkernel(char *);
+int open_drive(struct drive *, struct proc *);
+void close_drive(struct drive *drive);
+int driveio(struct drive *, void *, size_t, off_t, int);
+/* #define read_drive(a, b, c, d) driveio (a, b, c, d, B_READ)
+   #define write_drive(a, b, c, d) driveio (a, b, c, d, B_WRITE) */
+int set_drive_parms(struct drive *drive);
+int init_drive(struct drive *);
+/* void throw_rude_remark (int, struct _ioctl_reply *, char *, ...); XXX */
+void throw_rude_remark(int, char *,...);
+
+int read_drive(struct drive *drive, void *buf, size_t length, off_t offset);
+int write_drive(struct drive *drive, void *buf, size_t length, off_t offset);
+void format_config(char *config, int len);
+void checkkernel(char *op);
+void free_drive(struct drive *drive);
+void down_drive(struct drive *drive);
+void remove_drive(int driveno);
+
+/* I/O */
+d_open_t vinumopen;
+d_close_t vinumclose;
+d_strategy_t vinumstrategy;
+d_ioctl_t vinumioctl;
+d_dump_t vinumdump;
+d_psize_t vinumsize;
+d_read_t vinumread;
+d_write_t vinumwrite;
+
+int vinumstart(struct buf *bp, int reviveok);
+int launch_requests(struct request *rq, int reviveok);
+
+/* XXX Do we need this? */
+int vinumpart(dev_t);
+
+/* Memory allocation */
+void vinum_meminfo(caddr_t data);
+int vinum_mallocinfo(caddr_t data);
+
+void expand_table(void **, int, int);
+
+void add_defective_region(struct plex *plex, off_t offset, size_t length);
+void add_unmapped_region(struct plex *plex, off_t offset, size_t length);
+void rebuild_plex_unmappedlist(struct plex *plex);
+struct request;
+struct rqgroup *allocrqg(struct request *rq, int elements);
+void deallocrqg(struct rqgroup *rqg);
+
+/* State transitions */
+int set_drive_state(int driveno, enum drivestate state, int force);
+int set_sd_state(int sdno, enum sdstate state, enum setstateflags flags);
+enum requeststatus checksdstate(struct sd *sd, struct request *rq, daddr_t diskaddr, daddr_t diskend);
+int set_plex_state(int plexno, enum plexstate state, enum setstateflags flags);
+int set_volume_state(int volumeno, enum volumestate state, enum setstateflags flags);
+void get_volume_label(struct volume *vol, struct disklabel *lp);
+int write_volume_label(int);
+void start_object(struct vinum_ioctl_msg *);
+void stop_object(struct vinum_ioctl_msg *);
+void setstate(struct vinum_ioctl_msg *msg);
+void vinum_label(int);
+int vinum_writedisklabel(struct volume *, struct disklabel *);
+int initsd(int);
+
+int restart_plex(int plexno);
+int revive_block(int plexno);
+
+/* Auxiliary functions */
+enum sdstates sdstatemap(struct plex *plex, int *sddowncount);
+enum volplexstate vpstate(struct plex *plex);
+#endif
+
+enum keyword get_keyword(char *, struct keywordset *);
+void listconfig(void);
+char *drive_state(enum drivestate);
+char *volume_state(enum volumestate);
+char *plex_state(enum plexstate);
+char *plex_org(enum plexorg);
+char *sd_state(enum sdstate);
+enum drivestate DriveState(char *text);
+enum sdstate SdState(char *text);
+enum plexstate PlexState(char *text);
+enum volumestate VolState(char *text);
+struct drive *validdrive(int driveno, struct _ioctl_reply *);
+struct sd *validsd(int sdno, struct _ioctl_reply *);
+struct plex *validplex(int plexno, struct _ioctl_reply *);
+struct volume *validvol(int volno, struct _ioctl_reply *);
+int tokenize(char *, char *[]);
+void resetstats(struct vinum_ioctl_msg *msg);
+
+/* Locking */
+int lockvol(struct volume *vol);
+void unlockvol(struct volume *vol);
+int lockplex(struct plex *plex);
+void unlockplex(struct plex *plex);
+int lockrange(struct plex *plex, off_t first, off_t last);
+void unlockrange(struct plex *plex, off_t first, off_t last);
+int lock_config(void);
+void unlock_config(void);
+
+#ifdef DEBUG
+#define expandrq(prq) \
+{  \
+  expand_table ((void **) &prq->rqe, \
+		prq->requests * sizeof (struct rqelement), \
+		(prq->requests + RQELTS) * sizeof (struct rqelement) ); \
+  bzero (&prq->rqe [prq->requests], RQELTS * sizeof (struct rqelement)); \
+  prq->rqcount += RQELTS; \
+  }
+#else
+void expandrq(struct plexrq *);
+#endif