The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/sys/conf.h

Version: -  FREEBSD  -  FREEBSD11  -  FREEBSD10  -  FREEBSD9  -  FREEBSD92  -  FREEBSD91  -  FREEBSD90  -  FREEBSD8  -  FREEBSD82  -  FREEBSD81  -  FREEBSD80  -  FREEBSD7  -  FREEBSD74  -  FREEBSD73  -  FREEBSD72  -  FREEBSD71  -  FREEBSD70  -  FREEBSD6  -  FREEBSD64  -  FREEBSD63  -  FREEBSD62  -  FREEBSD61  -  FREEBSD60  -  FREEBSD5  -  FREEBSD55  -  FREEBSD54  -  FREEBSD53  -  FREEBSD52  -  FREEBSD51  -  FREEBSD50  -  FREEBSD4  -  FREEBSD3  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 1990, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  * Copyright (c) 2000
    5  *      Poul-Henning Kamp.  All rights reserved.
    6  * (c) UNIX System Laboratories, Inc.
    7  * All or some portions of this file are derived from material licensed
    8  * to the University of California by American Telephone and Telegraph
    9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   10  * the permission of UNIX System Laboratories, Inc.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  * 4. Neither the name of the University nor the names of its contributors
   21  *    may be used to endorse or promote products derived from this software
   22  *    without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  *
   36  *      @(#)conf.h      8.5 (Berkeley) 1/9/95
   37  * $FreeBSD$
   38  */
   39 
   40 #ifndef _SYS_CONF_H_
   41 #define _SYS_CONF_H_
   42 
   43 #ifdef _KERNEL
   44 #include <sys/eventhandler.h>
   45 #else
   46 #include <sys/queue.h>
   47 #endif
   48 
   49 struct tty;
   50 struct snapdata;
   51 struct devfs_dirent;
   52 struct cdevsw;
   53 
   54 struct cdev {
   55         struct cdev_priv        *si_priv;
   56         u_int           si_flags;
   57 #define SI_ALIAS        0x0002  /* carrier of alias name */
   58 #define SI_NAMED        0x0004  /* make_dev{_alias} has been called */
   59 #define SI_CHEAPCLONE   0x0008  /* can be removed_dev'ed when vnode reclaims */
   60 #define SI_CHILD        0x0010  /* child of another struct cdev **/
   61 #define SI_DEVOPEN      0x0020  /* opened by device */
   62 #define SI_CONSOPEN     0x0040  /* opened by console */
   63 #define SI_DUMPDEV      0x0080  /* is kernel dumpdev */
   64 #define SI_CANDELETE    0x0100  /* can do BIO_DELETE */
   65 #define SI_CLONELIST    0x0200  /* on a clone list */
   66         struct timespec si_atime;
   67         struct timespec si_ctime;
   68         struct timespec si_mtime;
   69         uid_t           si_uid;
   70         gid_t           si_gid;
   71         mode_t          si_mode;
   72         struct ucred    *si_cred;       /* cached clone-time credential */
   73         u_int           si_drv0;
   74         int             si_refcount;
   75         LIST_ENTRY(cdev)        si_list;
   76         LIST_ENTRY(cdev)        si_clone;
   77         LIST_HEAD(, cdev)       si_children;
   78         LIST_ENTRY(cdev)        si_siblings;
   79         struct cdev *si_parent;
   80         char            *si_name;
   81         void            *si_drv1, *si_drv2;
   82         struct cdevsw   *si_devsw;
   83         int             si_iosize_max;  /* maximum I/O size (for physio &al) */
   84         u_long          si_usecount;
   85         u_long          si_threadcount;
   86         union {
   87                 struct tty *__sit_tty;
   88                 struct snapdata *__sid_snapdata;
   89         } __si_u;
   90         char            __si_namebuf[SPECNAMELEN + 1];
   91 };
   92 
   93 #define si_tty          __si_u.__sit_tty
   94 #define si_snapdata     __si_u.__sid_snapdata
   95 
   96 #ifdef _KERNEL
   97 
   98 /*
   99  * Definitions of device driver entry switches
  100  */
  101 
  102 struct bio;
  103 struct buf;
  104 struct thread;
  105 struct uio;
  106 struct knote;
  107 struct clonedevs;
  108 struct vnode;
  109 
  110 /*
  111  * Note: d_thread_t is provided as a transition aid for those drivers
  112  * that treat struct proc/struct thread as an opaque data type and
  113  * exist in substantially the same form in both 4.x and 5.x.  Writers
  114  * of drivers that dips into the d_thread_t structure should use
  115  * struct thread or struct proc as appropriate for the version of the
  116  * OS they are using.  It is provided in lieu of each device driver
  117  * inventing its own way of doing this.  While it does violate style(9)
  118  * in a number of ways, this violation is deemed to be less
  119  * important than the benefits that a uniform API between releases
  120  * gives.
  121  *
  122  * Users of struct thread/struct proc that aren't device drivers should
  123  * not use d_thread_t.
  124  */
  125 
  126 typedef struct thread d_thread_t;
  127 
  128 typedef int d_open_t(struct cdev *dev, int oflags, int devtype, struct thread *td);
  129 typedef int d_fdopen_t(struct cdev *dev, int oflags, struct thread *td, int fdidx);
  130 typedef int d_close_t(struct cdev *dev, int fflag, int devtype, struct thread *td);
  131 typedef void d_strategy_t(struct bio *bp);
  132 typedef int d_ioctl_t(struct cdev *dev, u_long cmd, caddr_t data,
  133                       int fflag, struct thread *td);
  134 
  135 typedef int d_read_t(struct cdev *dev, struct uio *uio, int ioflag);
  136 typedef int d_write_t(struct cdev *dev, struct uio *uio, int ioflag);
  137 typedef int d_poll_t(struct cdev *dev, int events, struct thread *td);
  138 typedef int d_kqfilter_t(struct cdev *dev, struct knote *kn);
  139 typedef int d_mmap_t(struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr,
  140                      int nprot);
  141 typedef void d_purge_t(struct cdev *dev);
  142 
  143 typedef int d_spare2_t(struct cdev *dev);
  144 
  145 typedef int dumper_t(
  146         void *priv,             /* Private to the driver. */
  147         void *virtual,          /* Virtual (mapped) address. */
  148         vm_offset_t physical,   /* Physical address of virtual. */
  149         off_t offset,           /* Byte-offset to write at. */
  150         size_t length);         /* Number of bytes to dump. */
  151 
  152 #endif /* _KERNEL */
  153 
  154 /*
  155  * Types for d_flags.
  156  */
  157 #define D_TAPE  0x0001
  158 #define D_DISK  0x0002
  159 #define D_TTY   0x0004
  160 #define D_MEM   0x0008
  161 
  162 #ifdef _KERNEL 
  163 
  164 #define D_TYPEMASK      0xffff
  165 
  166 /*
  167  * Flags for d_flags which the drivers can set.
  168  */
  169 #define D_MEMDISK       0x00010000      /* memory type disk */
  170 #define D_TRACKCLOSE    0x00080000      /* track all closes */
  171 #define D_MMAP_ANON     0x00100000      /* special treatment in vm_mmap.c */
  172 #define D_PSEUDO        0x00200000      /* make_dev() can return NULL */
  173 #define D_NEEDGIANT     0x00400000      /* driver want Giant */
  174 
  175 /*
  176  * Version numbers.
  177  */
  178 #define D_VERSION_00    0x20011966
  179 #define D_VERSION_01    0x17032005      /* Add d_uid,gid,mode & kind */
  180 #define D_VERSION       D_VERSION_01
  181 
  182 /*
  183  * Flags used for internal housekeeping
  184  */
  185 #define D_INIT          0x80000000      /* cdevsw initialized */
  186 
  187 /*
  188  * Character device switch table
  189  */
  190 struct cdevsw {
  191         int                     d_version;
  192         u_int                   d_flags;
  193         const char              *d_name;
  194         d_open_t                *d_open;
  195         d_fdopen_t              *d_fdopen;
  196         d_close_t               *d_close;
  197         d_read_t                *d_read;
  198         d_write_t               *d_write;
  199         d_ioctl_t               *d_ioctl;
  200         d_poll_t                *d_poll;
  201         d_mmap_t                *d_mmap;
  202         d_strategy_t            *d_strategy;
  203         dumper_t                *d_dump;
  204         d_kqfilter_t            *d_kqfilter;
  205         d_purge_t               *d_purge;
  206         d_spare2_t              *d_spare2;
  207         uid_t                   d_uid;
  208         gid_t                   d_gid;
  209         mode_t                  d_mode;
  210         const char              *d_kind;
  211 
  212         /* These fields should not be messed with by drivers */
  213         LIST_ENTRY(cdevsw)      d_list;
  214         LIST_HEAD(, cdev)       d_devs;
  215         int                     d_spare3;
  216         struct cdevsw           *d_gianttrick;
  217 };
  218 
  219 #define NUMCDEVSW 256
  220 
  221 #define MAXMINOR        0xffff00ffU
  222 
  223 struct module;
  224 
  225 struct devsw_module_data {
  226         int     (*chainevh)(struct module *, int, void *); /* next handler */
  227         void    *chainarg;      /* arg for next event handler */
  228         /* Do not initialize fields hereafter */
  229 };
  230 
  231 #define DEV_MODULE(name, evh, arg)                                      \
  232 static moduledata_t name##_mod = {                                      \
  233     #name,                                                              \
  234     evh,                                                                \
  235     arg                                                                 \
  236 };                                                                      \
  237 DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
  238 
  239 
  240 void clone_setup(struct clonedevs **cdp);
  241 void clone_cleanup(struct clonedevs **);
  242 #define CLONE_UNITMASK 0xfffff
  243 #define CLONE_FLAG0 (CLONE_UNITMASK + 1)
  244 int clone_create(struct clonedevs **, struct cdevsw *, int *unit, struct cdev **dev, int extra);
  245 
  246 int     count_dev(struct cdev *_dev);
  247 void    destroy_dev(struct cdev *_dev);
  248 struct cdevsw *dev_refthread(struct cdev *_dev);
  249 struct cdevsw *devvn_refthread(struct vnode *vp, struct cdev **devp);
  250 void    dev_relthread(struct cdev *_dev);
  251 void    dev_depends(struct cdev *_pdev, struct cdev *_cdev);
  252 void    dev_ref(struct cdev *dev);
  253 void    dev_refl(struct cdev *dev);
  254 void    dev_rel(struct cdev *dev);
  255 void    dev_strategy(struct cdev *dev, struct buf *bp);
  256 struct cdev *make_dev(struct cdevsw *_devsw, int _minor, uid_t _uid, gid_t _gid,
  257                 int _perms, const char *_fmt, ...) __printflike(6, 7);
  258 struct cdev *make_dev_cred(struct cdevsw *_devsw, int _minor,
  259                 struct ucred *_cr, uid_t _uid, gid_t _gid, int _perms,
  260                 const char *_fmt, ...) __printflike(7, 8);
  261 struct cdev *make_dev_alias(struct cdev *_pdev, const char *_fmt, ...) __printflike(2, 3);
  262 int     dev2unit(struct cdev *_dev);
  263 void    dev_lock(void);
  264 void    dev_unlock(void);
  265 int     unit2minor(int _unit);
  266 u_int   minor2unit(u_int _minor);
  267 void    setconf(void);
  268 
  269 #define         UID_ROOT        0
  270 #define         UID_BIN         3
  271 #define         UID_UUCP        66
  272 
  273 #define         GID_WHEEL       0
  274 #define         GID_KMEM        2
  275 #define         GID_OPERATOR    5
  276 #define         GID_BIN         7
  277 #define         GID_GAMES       13
  278 #define         GID_DIALER      68
  279 
  280 typedef void (*dev_clone_fn)(void *arg, struct ucred *cred, char *name,
  281             int namelen, struct cdev **result);
  282 
  283 int dev_stdclone(char *_name, char **_namep, const char *_stem, int *_unit);
  284 EVENTHANDLER_DECLARE(dev_clone, dev_clone_fn);
  285 
  286 /* Stuff relating to kernel-dump */
  287 
  288 struct dumperinfo {
  289         dumper_t *dumper;       /* Dumping function. */
  290         void    *priv;          /* Private parts. */
  291         u_int   blocksize;      /* Size of block in bytes. */
  292         off_t   mediaoffset;    /* Initial offset in bytes. */
  293         off_t   mediasize;      /* Space available in bytes. */
  294 };
  295 
  296 int set_dumper(struct dumperinfo *);
  297 void dumpsys(struct dumperinfo *);
  298 extern int dumping;             /* system is dumping */
  299 
  300 /* D_TTY related functions */
  301 d_close_t        ttyclose;
  302 d_ioctl_t        ttyioctl;
  303 d_kqfilter_t     ttykqfilter;
  304 d_open_t         ttyopen;
  305 d_poll_t         ttypoll;
  306 d_read_t         ttyread;
  307 d_write_t        ttywrite;
  308 
  309 #endif /* _KERNEL */
  310 
  311 #endif /* !_SYS_CONF_H_ */

Cache object: 7de0f75a321a36910f42f39cb09b8b8f


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.