/* $OpenBSD: conf.c,v 1.75 2022/10/15 10:12:13 jsg Exp $ */ /*- * Copyright (c) 1991 The Regents of the University of California. * 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. 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.c 7.9 (Berkeley) 5/28/91 */ #include <sys/param.h> #include <sys/systm.h> #include <sys/buf.h> #include <sys/ioctl.h> #include <sys/tty.h> #include <sys/vnode.h> #include <machine/conf.h> #include "vnd.h" #include "rd.h" #include "sd.h" #include "st.h" #include "cd.h" #include "ch.h" #include "uk.h" #include "wd.h" bdev_decl(wd); cdev_decl(wd); #if 0 #include "fd.h" #else #define NFD 0 #endif bdev_decl(fd); cdev_decl(fd); struct bdevsw bdevsw[] = { bdev_swap_init(1,sw), /* 0: swap pseudo-device */ bdev_notdef(), /* 1: was: concatenated disk driver */ bdev_disk_init(NVND,vnd), /* 2: vnode disk driver */ bdev_disk_init(NRD,rd), /* 3: RAM disk */ bdev_disk_init(NSD,sd), /* 4: SCSI disk */ bdev_notdef(), /* 5: was: SCSI tape */ bdev_disk_init(NCD,cd), /* 6: SCSI CD-ROM */ bdev_disk_init(NFD,fd), /* 7: floppy drive */ bdev_disk_init(NWD,wd), /* 8: ST506 drive */ bdev_notdef(), /* 9: */ bdev_notdef(), /* 10: */ bdev_notdef(), /* 11: */ bdev_notdef(), /* 12: */ bdev_notdef(), /* 13: */ bdev_notdef(), /* 14: */ }; int nblkdev = nitems(bdevsw); #include "audio.h" #include "video.h" #include "bio.h" #include "pty.h" #include "wsdisplay.h" #include "wskbd.h" #include "wsmouse.h" #include "wsmux.h" #include "bpfilter.h" #include "tun.h" #include "ksyms.h" #include "kstat.h" #include "lpt.h" cdev_decl(lpt); #include "com.h" cdev_decl(com); #include "dt.h" #include "pf.h" #include "hotplug.h" #include "vscsi.h" #include "pppx.h" #ifdef USER_PCICONF #include "pci.h" cdev_decl(pci); #endif #include "usb.h" #include "uhid.h" #include "fido.h" #include "ujoy.h" #include "ugen.h" #include "ulpt.h" #include "ucom.h" #include "fuse.h" struct cdevsw cdevsw[] = { cdev_cn_init(1,cn), /* 0: virtual console */ cdev_ctty_init(1,ctty), /* 1: controlling terminal */ cdev_mm_init(1,mm), /* 2: /dev/{null,mem,kmem,...} */ cdev_notdef(), /* 3 was /dev/drum */ cdev_tty_init(NPTY,pts), /* 4: pseudo-tty slave */ cdev_ptc_init(NPTY,ptc), /* 5: pseudo-tty master */ cdev_log_init(1,log), /* 6: /dev/klog */ cdev_notdef(), /* 7: was: concatenated disk */ cdev_disk_init(NVND,vnd), /* 8: vnode disk driver */ cdev_disk_init(NRD,rd), /* 9: RAM disk */ cdev_disk_init(NSD,sd), /* 10: SCSI disk */ cdev_tape_init(NST,st), /* 11: SCSI tape */ cdev_disk_init(NCD,cd), /* 12: SCSI cd-rom */ cdev_ch_init(NCH,ch), /* 13: SCSI changer */ cdev_notdef(), /* 14: */ cdev_uk_init(NUK,uk), /* 15: SCSI unknown */ cdev_fd_init(1,filedesc), /* 16: file descriptor pseudo-device */ cdev_bpf_init(NBPFILTER,bpf), /* 17: Berkeley packet filter */ cdev_tun_init(NTUN,tun), /* 18: network tunnel */ cdev_notdef(), /* 19: was LKM */ cdev_random_init(1,random), /* 20: random generator */ cdev_pf_init(NPF,pf), /* 21: packet filter */ cdev_tty_init(1,pdc), /* 22: PDC device */ cdev_tty_init(NCOM,com), /* 23: RS232 */ cdev_disk_init(NFD,fd), /* 24: floppy drive */ cdev_ksyms_init(NKSYMS,ksyms), /* 25: Kernel symbols device */ cdev_lpt_init(NLPT,lpt), /* 26: parallel printer */ cdev_wsdisplay_init(NWSDISPLAY, /* 27: workstation console */ wsdisplay), cdev_mouse_init(NWSKBD,wskbd), /* 28: keyboards */ cdev_mouse_init(NWSMOUSE,wsmouse), /* 29: mice */ cdev_mouse_init(NWSMUX,wsmux), /* 30: mux */ #ifdef USER_PCICONF cdev_pci_init(NPCI,pci), /* 31: PCI user */ #else cdev_notdef(), /* 31: */ #endif cdev_dt_init(NDT,dt), /* 32: dynamic tracer */ cdev_video_init(NVIDEO,video), /* 33: generic video I/O */ cdev_notdef(), /* 34 */ cdev_audio_init(NAUDIO,audio), /* 35: /dev/audio */ cdev_notdef(), /* 36: was: /dev/crypto */ cdev_bio_init(NBIO,bio), /* 37: ioctl tunnel */ cdev_ptm_init(NPTY,ptm), /* 38: pseudo-tty ptm device */ cdev_disk_init(NWD,wd), /* 39: ST506 disk */ cdev_usb_init(NUSB,usb), /* 40: USB controller */ cdev_usbdev_init(NUHID,uhid), /* 41: USB generic HID */ cdev_usbdev_init(NUGEN,ugen), /* 42: USB generic driver */ cdev_ulpt_init(NULPT,ulpt), /* 43: USB printers */ cdev_notdef(), /* 44: was urio */ cdev_tty_init(NUCOM,ucom), /* 45: USB tty */ cdev_notdef(), /* 46: was USB scanners */ cdev_hotplug_init(NHOTPLUG,hotplug), /* 47: devices hot plugging */ cdev_notdef(), /* 48: */ cdev_notdef(), /* 49: */ cdev_notdef(), /* 50: */ cdev_kstat_init(NKSTAT,kstat), /* 51: kernel statistics */ cdev_notdef(), /* 52: */ cdev_notdef(), /* 53: */ cdev_vscsi_init(NVSCSI,vscsi), /* 54: vscsi */ cdev_notdef(), cdev_disk_init(1,diskmap), /* 56: disk mapper */ cdev_pppx_init(NPPPX,pppx), /* 57: pppx */ cdev_fuse_init(NFUSE,fuse), /* 58: fuse */ cdev_tun_init(NTUN,tap), /* 59: Ethernet network tunnel */ cdev_notdef(), /* 60: was switch(4) */ cdev_fido_init(NFIDO,fido), /* 61: FIDO/U2F security key */ cdev_pppx_init(NPPPX,pppac), /* 62: PPP Access Concentrator */ cdev_ujoy_init(NUJOY,ujoy), /* 63: USB joystick/gamecontroller */ }; int nchrdev = nitems(cdevsw); int mem_no = 2; /* major device number of memory special file */ /* * Swapdev is a fake device implemented * in sw.c used only internally to get to swstrategy. * It cannot be provided to the users, because the * swstrategy routine munches the b_dev and b_blkno entries * before calling the appropriate driver. This would horribly * confuse, e.g. the hashing routines. Instead, /dev/drum is * provided as a character (raw) device. */ dev_t swapdev = makedev(0, 0); const int chrtoblktbl[] = { /*VCHR*/ /*VBLK*/ /* 0 */ NODEV, /* 1 */ NODEV, /* 2 */ NODEV, /* 3 */ NODEV, /* 4 */ NODEV, /* 5 */ NODEV, /* 6 */ NODEV, /* 7 */ NODEV, /* 8 */ 2, /* vnd */ /* 9 */ 3, /* rd */ /* 10 */ 4, /* sd */ /* 11 */ NODEV, /* 12 */ 6, /* cd */ /* 13 */ NODEV, /* 14 */ NODEV, /* 15 */ NODEV, /* 16 */ NODEV, /* 17 */ NODEV, /* 18 */ NODEV, /* 19 */ NODEV, /* 20 */ NODEV, /* 21 */ NODEV, /* 22 */ NODEV, /* 23 */ NODEV, /* 24 */ 7, /* fd */ /* 25 */ NODEV, /* 26 */ NODEV, /* 27 */ NODEV, /* 28 */ NODEV, /* 29 */ NODEV, /* 30 */ NODEV, /* 31 */ NODEV, /* 32 */ NODEV, /* 33 */ NODEV, /* 34 */ NODEV, /* 35 */ NODEV, /* 36 */ NODEV, /* 37 */ NODEV, /* 38 */ NODEV, /* 39 */ 8, /* wd */ }; const int nchrtoblktbl = nitems(chrtoblktbl); /* * Returns true if dev is /dev/zero. */ int iszerodev(dev_t dev) { return (major(dev) == mem_no && minor(dev) == 12); } dev_t getnulldev(void) { return makedev(mem_no, 2); } /* * Returns true if dev is /dev/mem or /dev/kmem. */ int iskmemdev(dev_t dev) { return (major(dev) == mem_no && minor(dev) < 2); }
