diff --git a/sys/kern/kern_conf.c b/sys/kern/kern_conf.c index a3fedc13b928..7be808ea6bc6 100644 --- a/sys/kern/kern_conf.c +++ b/sys/kern/kern_conf.c @@ -1,300 +1,311 @@ /*- * Parts Copyright (c) 1995 Terrence R. Lambert * Copyright (c) 1995 Julian R. Elischer * All rights reserved. * * 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 Terrence R. Lambert. * 4. The name Terrence R. Lambert may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY Julian R. Elischer ``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 TERRENCE R. LAMBERT 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: kern_conf.c,v 1.55 1999/08/08 18:42:47 phk Exp $ + * $Id: kern_conf.c,v 1.56 1999/08/13 10:29:20 phk Exp $ */ #include #include #include #include #include #include #include #include #include #define cdevsw_ALLOCSTART (NUMCDEVSW/2) struct cdevsw *cdevsw[NUMCDEVSW]; static int bmaj2cmaj[NUMCDEVSW]; MALLOC_DEFINE(M_DEVT, "dev_t", "dev_t storage"); #define DEVT_HASH 83 #define DEVT_STASH 50 static struct specinfo devt_stash[DEVT_STASH]; static SLIST_HEAD(devt_hash_head, specinfo) dev_hash[DEVT_HASH]; /* * Routine to convert from character to block device number. * * A minimal stub routine can always return NODEV. */ dev_t chrtoblk(dev_t dev) { struct cdevsw *cd; if((cd = devsw(dev)) != NULL) { if (cd->d_bmaj != -1) return(makebdev(cd->d_bmaj,minor(dev))); } return(NODEV); } struct cdevsw * devsw(dev_t dev) { if (dev->si_devsw) return (dev->si_devsw); return(cdevsw[major(dev)]); } /* * Add a cdevsw entry */ int cdevsw_add(struct cdevsw *newentry) { int i; static int setup; if (!setup) { for (i = 0; i < NUMCDEVSW; i++) if (!bmaj2cmaj[i]) bmaj2cmaj[i] = 254; setup++; } if (newentry->d_maj < 0 || newentry->d_maj >= NUMCDEVSW) { printf("%s: ERROR: driver has bogus cdevsw->d_maj = %d\n", newentry->d_name, newentry->d_maj); return EINVAL; } if (cdevsw[newentry->d_maj]) { printf("WARNING: \"%s\" is usurping \"%s\"'s cdevsw[]\n", newentry->d_name, cdevsw[newentry->d_maj]->d_name); } cdevsw[newentry->d_maj] = newentry; if (newentry->d_bmaj >= 0 && newentry->d_bmaj < NUMCDEVSW) { if (bmaj2cmaj[newentry->d_bmaj] != 254) { printf("WARNING: \"%s\" is usurping \"%s\"'s bmaj\n", newentry->d_name, cdevsw[bmaj2cmaj[newentry->d_bmaj]]->d_name); } bmaj2cmaj[newentry->d_bmaj] = newentry->d_maj; } return 0; } /* * Remove a cdevsw entry */ int cdevsw_remove(struct cdevsw *oldentry) { if (oldentry->d_maj < 0 || oldentry->d_maj >= NUMCDEVSW) { printf("%s: ERROR: driver has bogus cdevsw->d_maj = %d\n", oldentry->d_name, oldentry->d_maj); return EINVAL; } cdevsw[oldentry->d_maj] = NULL; if (oldentry->d_bmaj >= 0 && oldentry->d_bmaj < NUMCDEVSW) bmaj2cmaj[oldentry->d_bmaj] = 254; return 0; } int devsw_module_handler(module_t mod, int what, void* arg) { struct devsw_module_data* data = (struct devsw_module_data*) arg; int error = 0; switch (what) { case MOD_LOAD: error = cdevsw_add(data->cdevsw); if (!error && data->chainevh) error = data->chainevh(mod, what, data->chainarg); return error; case MOD_UNLOAD: if (data->chainevh) { error = data->chainevh(mod, what, data->chainarg); if (error) return error; } cdevsw_remove(data->cdevsw); return error; } if (data->chainevh) return data->chainevh(mod, what, data->chainarg); else return 0; } /* * dev_t and u_dev_t primitives */ int major(dev_t x) { if (x == NODEV) return NOUDEV; return((x->si_udev >> 8) & 0xff); } int minor(dev_t x) { if (x == NODEV) return NOUDEV; return(x->si_udev & 0xffff00ff); } +int +lminor(dev_t x) +{ + int i; + + if (x == NODEV) + return NOUDEV; + i = minor(x); + return ((i & 0xff) | (i >> 8)); +} + dev_t makebdev(int x, int y) { return (makedev(bmaj2cmaj[x], y)); } dev_t makedev(int x, int y) { struct specinfo *si; udev_t udev; int hash; static int stashed; udev = (x << 8) | y; hash = udev % DEVT_HASH; SLIST_FOREACH(si, &dev_hash[hash], si_hash) { if (si->si_udev == udev) return (si); } if (stashed >= DEVT_STASH) { MALLOC(si, struct specinfo *, sizeof(*si), M_DEVT, M_USE_RESERVE); } else { si = devt_stash + stashed++; } bzero(si, sizeof(*si)); si->si_udev = udev; si->si_bsize_phys = DEV_BSIZE; si->si_bsize_best = BLKDEV_IOSIZE; si->si_bsize_max = MAXBSIZE; if (y > 256) sprintf(si->si_name, "#%d/0x%x", x, y); else sprintf(si->si_name, "#%d/%d", x, y); SLIST_INSERT_HEAD(&dev_hash[hash], si, si_hash); return (si); } udev_t dev2udev(dev_t x) { if (x == NODEV) return NOUDEV; return (x->si_udev); } udev_t dev2budev(dev_t x) { if (x == NODEV) return NOUDEV; else return makeudev(devsw(x)->d_bmaj, minor(x)); } dev_t udev2dev(udev_t x, int b) { switch (b) { case 0: return makedev(umajor(x), uminor(x)); case 1: return makebdev(umajor(x), uminor(x)); default: Debugger("udev2dev(...,X)"); return NODEV; } } int uminor(udev_t dev) { return(dev & 0xffff00ff); } int umajor(udev_t dev) { return((dev & 0xff00) >> 8); } udev_t makeudev(int x, int y) { return ((x << 8) | y); } dev_t make_dev(struct cdevsw *devsw, int minor, uid_t uid, gid_t gid, int perms, char *fmt, ...) { dev_t dev; va_list ap; int i; dev = makedev(devsw->d_maj, minor); va_start(ap, fmt); i = kvprintf(fmt, NULL, dev->si_name, 32, ap); dev->si_name[i] = '\0'; va_end(ap); dev->si_devsw = devsw; return (dev); } diff --git a/sys/sys/conf.h b/sys/sys/conf.h index 2df2b741c2ce..a5e8ab6bc1c9 100644 --- a/sys/sys/conf.h +++ b/sys/sys/conf.h @@ -1,289 +1,290 @@ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * 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 the University of * California, Berkeley and its contributors. * 4. Neither the name of the University 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 BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS 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. * * @(#)conf.h 8.5 (Berkeley) 1/9/95 - * $Id: conf.h,v 1.72 1999/08/13 16:29:27 phk Exp $ + * $Id: conf.h,v 1.73 1999/08/14 11:40:49 phk Exp $ */ #ifndef _SYS_CONF_H_ #define _SYS_CONF_H_ #include #define SPECNAMELEN 15 struct tty; struct vnode; struct specinfo { struct mount *si_mountpoint; int si_bsize_phys; /* minimum physical block size */ int si_bsize_best; /* optimal block size / VBLK */ int si_bsize_max; /* maximum block size */ udev_t si_udev; SLIST_ENTRY(specinfo) si_hash; struct vnode *si_hlist; char si_name[SPECNAMELEN + 1]; void *si_drv1, *si_drv2; struct cdevsw *si_devsw; union { struct { struct tty *__sit_tty; } __si_tty; } __si_u; }; #define si_tty_tty __si_u.__si_tty.__sit_tty /* * Exported shorthand */ #define v_hashchain v_rdev->si_hlist #define v_specmountpoint v_rdev->si_mountpoint /* * Special device management */ #define SPECHSZ 64 #define SPECHASH(rdev) (((unsigned)(minor(rdev)))%SPECHSZ) /* * Definitions of device driver entry switches */ struct buf; struct proc; struct uio; typedef int d_open_t __P((dev_t dev, int oflags, int devtype, struct proc *p)); typedef int d_close_t __P((dev_t dev, int fflag, int devtype, struct proc *p)); typedef void d_strategy_t __P((struct buf *bp)); typedef int d_parms_t __P((dev_t dev, struct specinfo *sinfo, int ctl)); typedef int d_ioctl_t __P((dev_t dev, u_long cmd, caddr_t data, int fflag, struct proc *p)); typedef int d_dump_t __P((dev_t dev)); typedef int d_psize_t __P((dev_t dev)); typedef int d_read_t __P((dev_t dev, struct uio *uio, int ioflag)); typedef int d_write_t __P((dev_t dev, struct uio *uio, int ioflag)); typedef void d_stop_t __P((struct tty *tp, int rw)); typedef int d_reset_t __P((dev_t dev)); typedef struct tty *d_devtotty_t __P((dev_t dev)); typedef int d_poll_t __P((dev_t dev, int events, struct proc *p)); typedef int d_mmap_t __P((dev_t dev, vm_offset_t offset, int nprot)); typedef int l_open_t __P((dev_t dev, struct tty *tp)); typedef int l_close_t __P((struct tty *tp, int flag)); typedef int l_read_t __P((struct tty *tp, struct uio *uio, int flag)); typedef int l_write_t __P((struct tty *tp, struct uio *uio, int flag)); typedef int l_ioctl_t __P((struct tty *tp, u_long cmd, caddr_t data, int flag, struct proc *p)); typedef int l_rint_t __P((int c, struct tty *tp)); typedef int l_start_t __P((struct tty *tp)); typedef int l_modem_t __P((struct tty *tp, int flag)); /* * XXX: The dummy argument can be used to do what strategy1() never * did anywhere: Create a per device flag to lock the device during * label/slice surgery, all calls with a dummy == 0 gets stalled on * a queue somewhere, whereas dummy == 1 are let through. Once out * of surgery, reset the flag and restart all the stuff on the stall * queue. */ #define BUF_STRATEGY(bp, dummy) (*devsw((bp)->b_dev)->d_strategy)(bp) /* * Types for d_type. */ #define D_TAPE 1 #define D_DISK 2 #define D_TTY 4 #define D_TYPEMASK 0xffff /* * Flags for d_flags. */ #define D_NOCLUSTERR 0x10000 /* disables cluter read */ #define D_NOCLUSTERW 0x20000 /* disables cluster write */ #define D_NOCLUSTERRW (D_NOCLUSTERR | D_NOCLUSTERW) #define D_CANFREE 0x40000 /* can free blocks */ #define D_TRACKCLOSE 0x80000 /* track all closes */ /* * Character device switch table */ struct cdevsw { d_open_t *d_open; d_close_t *d_close; d_read_t *d_read; d_write_t *d_write; d_ioctl_t *d_ioctl; d_stop_t *d_stop; d_reset_t *d_bogoreset; /* XXX not used */ d_devtotty_t *d_devtotty; d_poll_t *d_poll; d_mmap_t *d_mmap; d_strategy_t *d_strategy; char *d_name; /* base device name, e.g. 'vn' */ d_parms_t *d_bogoparms; /* XXX not used */ int d_maj; d_dump_t *d_dump; d_psize_t *d_psize; u_int d_flags; int d_maxio; int d_bmaj; }; /* * Line discipline switch table */ struct linesw { l_open_t *l_open; l_close_t *l_close; l_read_t *l_read; l_write_t *l_write; l_ioctl_t *l_ioctl; l_rint_t *l_rint; l_start_t *l_start; l_modem_t *l_modem; u_char l_hotchar; }; #ifdef KERNEL extern struct linesw linesw[]; extern int nlinesw; int ldisc_register __P((int , struct linesw *)); void ldisc_deregister __P((int)); #define LDISC_LOAD -1 /* Loadable line discipline */ #endif /* * Swap device table */ struct swdevt { udev_t sw_dev; /* For quasibogus swapdev reporting */ int sw_flags; int sw_nblks; struct vnode *sw_vp; dev_t sw_device; }; #define SW_FREED 0x01 #define SW_SEQUENTIAL 0x02 #define sw_freed sw_flags /* XXX compat */ #ifdef KERNEL d_open_t noopen; d_close_t noclose; d_read_t noread; d_write_t nowrite; d_ioctl_t noioctl; d_stop_t nostop; d_reset_t noreset; d_devtotty_t nodevtotty; d_mmap_t nommap; #define nostrategy ((d_strategy_t *)NULL) #define noparms ((d_parms_t *)NULL) #define nopoll seltrue d_dump_t nodump; #define NUMCDEVSW 256 /* * nopsize is little used, so not worth having dummy functions for. */ #define nopsize ((d_psize_t *)NULL) d_open_t nullopen; d_close_t nullclose; l_read_t l_noread; l_write_t l_nowrite; struct module; struct devsw_module_data { int (*chainevh)(struct module *, int, void *); /* next handler */ void *chainarg; /* arg for next event handler */ struct cdevsw *cdevsw; /* device functions */ /* Do not initialize fields hereafter */ }; #define DEV_MODULE(name, cmaj, bmaj, devsw, evh, arg) \ static struct devsw_module_data name##_devsw_mod = { \ evh, arg, &devsw \ }; \ \ static moduledata_t name##_mod = { \ #name, \ devsw_module_handler, \ &name##_devsw_mod \ }; \ DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE+cmaj*256+bmaj) int cdevsw_add __P((struct cdevsw *new)); int cdevsw_remove __P((struct cdevsw *old)); dev_t chrtoblk __P((dev_t dev)); struct cdevsw *devsw __P((dev_t dev)); int devsw_module_handler __P((struct module *mod, int what, void *arg)); int iskmemdev __P((dev_t dev)); int iszerodev __P((dev_t dev)); dev_t makebdev __P((int maj, int min)); dev_t make_dev __P((struct cdevsw *devsw, int minor, uid_t uid, gid_t gid, int perms, char *fmt, ...)) __printflike(6, 7); +int lminor __P((dev_t dev)); void setconf __P((void)); /* * XXX: This gunk included in case DEVFS resurfaces */ #define UID_ROOT 0 #define UID_BIN 3 #define UID_UUCP 66 #define GID_WHEEL 0 #define GID_KMEM 2 #define GID_OPERATOR 5 #define GID_BIN 7 #define GID_GAMES 13 #define GID_DIALER 68 #endif /* KERNEL */ #endif /* !_SYS_CONF_H_ */ diff --git a/sys/sys/linedisc.h b/sys/sys/linedisc.h index 2df2b741c2ce..a5e8ab6bc1c9 100644 --- a/sys/sys/linedisc.h +++ b/sys/sys/linedisc.h @@ -1,289 +1,290 @@ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * 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 the University of * California, Berkeley and its contributors. * 4. Neither the name of the University 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 BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS 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. * * @(#)conf.h 8.5 (Berkeley) 1/9/95 - * $Id: conf.h,v 1.72 1999/08/13 16:29:27 phk Exp $ + * $Id: conf.h,v 1.73 1999/08/14 11:40:49 phk Exp $ */ #ifndef _SYS_CONF_H_ #define _SYS_CONF_H_ #include #define SPECNAMELEN 15 struct tty; struct vnode; struct specinfo { struct mount *si_mountpoint; int si_bsize_phys; /* minimum physical block size */ int si_bsize_best; /* optimal block size / VBLK */ int si_bsize_max; /* maximum block size */ udev_t si_udev; SLIST_ENTRY(specinfo) si_hash; struct vnode *si_hlist; char si_name[SPECNAMELEN + 1]; void *si_drv1, *si_drv2; struct cdevsw *si_devsw; union { struct { struct tty *__sit_tty; } __si_tty; } __si_u; }; #define si_tty_tty __si_u.__si_tty.__sit_tty /* * Exported shorthand */ #define v_hashchain v_rdev->si_hlist #define v_specmountpoint v_rdev->si_mountpoint /* * Special device management */ #define SPECHSZ 64 #define SPECHASH(rdev) (((unsigned)(minor(rdev)))%SPECHSZ) /* * Definitions of device driver entry switches */ struct buf; struct proc; struct uio; typedef int d_open_t __P((dev_t dev, int oflags, int devtype, struct proc *p)); typedef int d_close_t __P((dev_t dev, int fflag, int devtype, struct proc *p)); typedef void d_strategy_t __P((struct buf *bp)); typedef int d_parms_t __P((dev_t dev, struct specinfo *sinfo, int ctl)); typedef int d_ioctl_t __P((dev_t dev, u_long cmd, caddr_t data, int fflag, struct proc *p)); typedef int d_dump_t __P((dev_t dev)); typedef int d_psize_t __P((dev_t dev)); typedef int d_read_t __P((dev_t dev, struct uio *uio, int ioflag)); typedef int d_write_t __P((dev_t dev, struct uio *uio, int ioflag)); typedef void d_stop_t __P((struct tty *tp, int rw)); typedef int d_reset_t __P((dev_t dev)); typedef struct tty *d_devtotty_t __P((dev_t dev)); typedef int d_poll_t __P((dev_t dev, int events, struct proc *p)); typedef int d_mmap_t __P((dev_t dev, vm_offset_t offset, int nprot)); typedef int l_open_t __P((dev_t dev, struct tty *tp)); typedef int l_close_t __P((struct tty *tp, int flag)); typedef int l_read_t __P((struct tty *tp, struct uio *uio, int flag)); typedef int l_write_t __P((struct tty *tp, struct uio *uio, int flag)); typedef int l_ioctl_t __P((struct tty *tp, u_long cmd, caddr_t data, int flag, struct proc *p)); typedef int l_rint_t __P((int c, struct tty *tp)); typedef int l_start_t __P((struct tty *tp)); typedef int l_modem_t __P((struct tty *tp, int flag)); /* * XXX: The dummy argument can be used to do what strategy1() never * did anywhere: Create a per device flag to lock the device during * label/slice surgery, all calls with a dummy == 0 gets stalled on * a queue somewhere, whereas dummy == 1 are let through. Once out * of surgery, reset the flag and restart all the stuff on the stall * queue. */ #define BUF_STRATEGY(bp, dummy) (*devsw((bp)->b_dev)->d_strategy)(bp) /* * Types for d_type. */ #define D_TAPE 1 #define D_DISK 2 #define D_TTY 4 #define D_TYPEMASK 0xffff /* * Flags for d_flags. */ #define D_NOCLUSTERR 0x10000 /* disables cluter read */ #define D_NOCLUSTERW 0x20000 /* disables cluster write */ #define D_NOCLUSTERRW (D_NOCLUSTERR | D_NOCLUSTERW) #define D_CANFREE 0x40000 /* can free blocks */ #define D_TRACKCLOSE 0x80000 /* track all closes */ /* * Character device switch table */ struct cdevsw { d_open_t *d_open; d_close_t *d_close; d_read_t *d_read; d_write_t *d_write; d_ioctl_t *d_ioctl; d_stop_t *d_stop; d_reset_t *d_bogoreset; /* XXX not used */ d_devtotty_t *d_devtotty; d_poll_t *d_poll; d_mmap_t *d_mmap; d_strategy_t *d_strategy; char *d_name; /* base device name, e.g. 'vn' */ d_parms_t *d_bogoparms; /* XXX not used */ int d_maj; d_dump_t *d_dump; d_psize_t *d_psize; u_int d_flags; int d_maxio; int d_bmaj; }; /* * Line discipline switch table */ struct linesw { l_open_t *l_open; l_close_t *l_close; l_read_t *l_read; l_write_t *l_write; l_ioctl_t *l_ioctl; l_rint_t *l_rint; l_start_t *l_start; l_modem_t *l_modem; u_char l_hotchar; }; #ifdef KERNEL extern struct linesw linesw[]; extern int nlinesw; int ldisc_register __P((int , struct linesw *)); void ldisc_deregister __P((int)); #define LDISC_LOAD -1 /* Loadable line discipline */ #endif /* * Swap device table */ struct swdevt { udev_t sw_dev; /* For quasibogus swapdev reporting */ int sw_flags; int sw_nblks; struct vnode *sw_vp; dev_t sw_device; }; #define SW_FREED 0x01 #define SW_SEQUENTIAL 0x02 #define sw_freed sw_flags /* XXX compat */ #ifdef KERNEL d_open_t noopen; d_close_t noclose; d_read_t noread; d_write_t nowrite; d_ioctl_t noioctl; d_stop_t nostop; d_reset_t noreset; d_devtotty_t nodevtotty; d_mmap_t nommap; #define nostrategy ((d_strategy_t *)NULL) #define noparms ((d_parms_t *)NULL) #define nopoll seltrue d_dump_t nodump; #define NUMCDEVSW 256 /* * nopsize is little used, so not worth having dummy functions for. */ #define nopsize ((d_psize_t *)NULL) d_open_t nullopen; d_close_t nullclose; l_read_t l_noread; l_write_t l_nowrite; struct module; struct devsw_module_data { int (*chainevh)(struct module *, int, void *); /* next handler */ void *chainarg; /* arg for next event handler */ struct cdevsw *cdevsw; /* device functions */ /* Do not initialize fields hereafter */ }; #define DEV_MODULE(name, cmaj, bmaj, devsw, evh, arg) \ static struct devsw_module_data name##_devsw_mod = { \ evh, arg, &devsw \ }; \ \ static moduledata_t name##_mod = { \ #name, \ devsw_module_handler, \ &name##_devsw_mod \ }; \ DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE+cmaj*256+bmaj) int cdevsw_add __P((struct cdevsw *new)); int cdevsw_remove __P((struct cdevsw *old)); dev_t chrtoblk __P((dev_t dev)); struct cdevsw *devsw __P((dev_t dev)); int devsw_module_handler __P((struct module *mod, int what, void *arg)); int iskmemdev __P((dev_t dev)); int iszerodev __P((dev_t dev)); dev_t makebdev __P((int maj, int min)); dev_t make_dev __P((struct cdevsw *devsw, int minor, uid_t uid, gid_t gid, int perms, char *fmt, ...)) __printflike(6, 7); +int lminor __P((dev_t dev)); void setconf __P((void)); /* * XXX: This gunk included in case DEVFS resurfaces */ #define UID_ROOT 0 #define UID_BIN 3 #define UID_UUCP 66 #define GID_WHEEL 0 #define GID_KMEM 2 #define GID_OPERATOR 5 #define GID_BIN 7 #define GID_GAMES 13 #define GID_DIALER 68 #endif /* KERNEL */ #endif /* !_SYS_CONF_H_ */