Subversion Repositories openrisc_2011-10-31

/*

 * Copyright (c) 1989, 1993

 *      The Regents of the University of California.  All rights reserved.

 *

 * This code is derived from software contributed to Berkeley by

 * Mike Karels at Berkeley Software Design, 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.

 *

 *      @(#)sysctl.h    8.1 (Berkeley) 6/2/93

 * $Id: sysctl.h,v 1.2 2001-09-27 12:02:00 chris Exp $

 */

#ifndef _SYS_SYSCTL_H_

#define _SYS_SYSCTL_H_

/*

 * Definitions for sysctl call.  The sysctl call uses a hierarchical name

 * for objects that can be examined or modified.  The name is expressed as

 * a sequence of integers.  Like a file path name, the meaning of each

 * component depends on its place in the hierarchy.  The top-level and kern

 * identifiers are defined here, and other identifiers are defined in the

 * respective subsystem header files.

 */

#define CTL_MAXNAME     12      /* largest number of components supported */

/*

 * Each subsystem defined by sysctl defines a list of variables

 * for that subsystem. Each name is either a node with further

 * levels defined below it, or it is a leaf of some particular

 * type given below. Each sysctl level defines a set of name/type

 * pairs to be used by sysctl(1) in manipulating the subsystem.

 */

struct ctlname {

        char    *ctl_name;      /* subsystem name */

        int     ctl_type;       /* type of name */

};

#define CTLTYPE         0xf     /* Mask for the type */

#define CTLTYPE_NODE    1       /* name is a node */

#define CTLTYPE_INT     2       /* name describes an integer */

#define CTLTYPE_STRING  3       /* name describes a string */

#define CTLTYPE_QUAD    4       /* name describes a 64-bit number */

#define CTLTYPE_OPAQUE  5       /* name describes a structure */

#define CTLTYPE_STRUCT  CTLTYPE_OPAQUE  /* name describes a structure */

#define CTLFLAG_RD      0x80000000      /* Allow reads of variable */

#define CTLFLAG_WR      0x40000000      /* Allow writes to the variable */

#define CTLFLAG_RW      (CTLFLAG_RD|CTLFLAG_WR)

#define CTLFLAG_NOLOCK  0x20000000      /* XXX Don't Lock */

#define CTLFLAG_ANYBODY 0x10000000      /* All users can set this var */

/*

 * USE THIS instead of a hardwired number from the categories below

 * to get dynamically assigned sysctl entries using the linker-set

 * technology. This is the way nearly all new sysctl variables should

 * be implimented.

 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");

 */

#define OID_AUTO        (-1)

#ifdef KERNEL

#define SYSCTL_HANDLER_ARGS (struct sysctl_oid *oidp, void *arg1, int arg2, \

        struct sysctl_req *req)

/*

 * This describes the access space for a sysctl request.  This is needed

 * so that we can use the interface from the kernel or from user-space.

 */

struct sysctl_req {

        struct proc     *p;

        int             lock;

        void            *oldptr;

        int             oldlen;

        int             oldidx;

        int             (*oldfunc)(struct sysctl_req *, const void *, int);

        void            *newptr;

        int             newlen;

        int             newidx;

        int             (*newfunc)(struct sysctl_req *, void *, int);

};

/*

 * This describes one "oid" in the MIB tree.  Potentially more nodes can

 * be hidden behind it, expanded by the handler.

 */

struct sysctl_oid {

        int             oid_number;

        int             oid_kind;

        void            *oid_arg1;

        int             oid_arg2;

        const char      *oid_name;

        int             (*oid_handler) SYSCTL_HANDLER_ARGS;

        const char      *oid_fmt;

};

#define SYSCTL_IN(r, p, l)

#define SYSCTL_OUT(r, p, l)

int sysctl_handle_int SYSCTL_HANDLER_ARGS;

int sysctl_handle_string SYSCTL_HANDLER_ARGS;

int sysctl_handle_opaque SYSCTL_HANDLER_ARGS;

/* This is the "raw" function for a mib-oid */

#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr)

/* This makes a node from which other oids can hang */

#define SYSCTL_NODE(parent, nbr, name, access, handler, descr)

/* This is a string len can be 0 to indicate '\0' termination */

#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) 

/* This is a integer, if ptr is NULL, val is returned */

#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) 

/* This is anything, specified by a pointer and a lenth */

#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) 

/* This is a struct, specified by a pointer and type */

#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) 

/* Needs a proc.  Specify by pointer and arg */

#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) 

#endif /* KERNEL */

/*

 * Top-level identifiers

 */

#define CTL_UNSPEC      0                /* unused */

#define CTL_KERN        1               /* "high kernel": proc, limits */

#define CTL_VM          2               /* virtual memory */

#define CTL_VFS         3               /* file system, mount type is next */

#define CTL_NET         4               /* network, see socket.h */

#define CTL_DEBUG       5               /* debugging parameters */

#define CTL_HW          6               /* generic cpu/io */

#define CTL_MACHDEP     7               /* machine dependent */

#define CTL_USER        8               /* user-level */

#define CTL_MAXID       9               /* number of valid top-level ids */

#define CTL_NAMES { \

        { 0, 0 }, \

        { "kern", CTLTYPE_NODE }, \

        { "vm", CTLTYPE_NODE }, \

        { "vfs", CTLTYPE_NODE }, \

        { "net", CTLTYPE_NODE }, \

        { "debug", CTLTYPE_NODE }, \

        { "hw", CTLTYPE_NODE }, \

        { "machdep", CTLTYPE_NODE }, \

        { "user", CTLTYPE_NODE }, \

}

/*

 * CTL_KERN identifiers

 */

#define KERN_OSTYPE              1      /* string: system version */

#define KERN_OSRELEASE           2      /* string: system release */

#define KERN_OSREV               3      /* int: system revision */

#define KERN_VERSION             4      /* string: compile time info */

#define KERN_MAXVNODES           5      /* int: max vnodes */

#define KERN_MAXPROC             6      /* int: max processes */

#define KERN_MAXFILES            7      /* int: max open files */

#define KERN_ARGMAX              8      /* int: max arguments to exec */

#define KERN_SECURELVL           9      /* int: system security level */

#define KERN_HOSTNAME           10      /* string: hostname */

#define KERN_HOSTID             11      /* int: host identifier */

#define KERN_CLOCKRATE          12      /* struct: struct clockrate */

#define KERN_VNODE              13      /* struct: vnode structures */

#define KERN_PROC               14      /* struct: process entries */

#define KERN_FILE               15      /* struct: file entries */

#define KERN_PROF               16      /* node: kernel profiling info */

#define KERN_POSIX1             17      /* int: POSIX.1 version */

#define KERN_NGROUPS            18      /* int: # of supplemental group ids */

#define KERN_JOB_CONTROL        19      /* int: is job control available */

#define KERN_SAVED_IDS          20      /* int: saved set-user/group-ID */

#define KERN_BOOTTIME           21      /* struct: time kernel was booted */

#define KERN_NISDOMAINNAME      22      /* string: YP domain name */

#define KERN_UPDATEINTERVAL     23      /* int: update process sleep time */

#define KERN_OSRELDATE          24      /* int: OS release date */

#define KERN_NTP_PLL            25      /* node: NTP PLL control */

#define KERN_BOOTFILE           26      /* string: name of booted kernel */

#define KERN_MAXFILESPERPROC    27      /* int: max open files per proc */

#define KERN_MAXPROCPERUID      28      /* int: max processes per uid */

#define KERN_DUMPDEV            29      /* dev_t: device to dump on */

#define KERN_SOMAXCONN          30      /* int: max connections in listen q */

#define KERN_MAXSOCKBUF         31      /* int: max size of a socket buffer */

#define KERN_PS_STRINGS         32      /* int: address of PS_STRINGS */

#define KERN_USRSTACK           33      /* int: address of USRSTACK */

#define KERN_MAXID              34      /* number of valid kern ids */

#define CTL_KERN_NAMES { \

        { 0, 0 }, \

        { "ostype", CTLTYPE_STRING }, \

        { "osrelease", CTLTYPE_STRING }, \

        { "osrevision", CTLTYPE_INT }, \

        { "version", CTLTYPE_STRING }, \

        { "maxvnodes", CTLTYPE_INT }, \

        { "maxproc", CTLTYPE_INT }, \

        { "maxfiles", CTLTYPE_INT }, \

        { "argmax", CTLTYPE_INT }, \

        { "securelevel", CTLTYPE_INT }, \

        { "hostname", CTLTYPE_STRING }, \

        { "hostid", CTLTYPE_INT }, \

        { "clockrate", CTLTYPE_STRUCT }, \

        { "vnode", CTLTYPE_STRUCT }, \

        { "proc", CTLTYPE_STRUCT }, \

        { "file", CTLTYPE_STRUCT }, \

        { "profiling", CTLTYPE_NODE }, \

        { "posix1version", CTLTYPE_INT }, \

        { "ngroups", CTLTYPE_INT }, \

        { "job_control", CTLTYPE_INT }, \

        { "saved_ids", CTLTYPE_INT }, \

        { "boottime", CTLTYPE_STRUCT }, \

        { "nisdomainname", CTLTYPE_STRING }, \

        { "update", CTLTYPE_INT }, \

        { "osreldate", CTLTYPE_INT }, \

        { "ntp_pll", CTLTYPE_NODE }, \

        { "bootfile", CTLTYPE_STRING }, \

        { "maxfilesperproc", CTLTYPE_INT }, \

        { "maxprocperuid", CTLTYPE_INT }, \

        { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \

        { "somaxconn", CTLTYPE_INT }, \

        { "maxsockbuf", CTLTYPE_INT }, \

        { "ps_strings", CTLTYPE_INT }, \

        { "usrstack", CTLTYPE_INT }, \

}

/*

 * CTL_VFS identifiers

 */

#define VFS_VFSCONF             0        /* get configured filesystems */

#define VFS_MAXID               1       /* number of items */

#define CTL_VFS_NAMES { \

        { "vfsconf", CTLTYPE_STRUCT }, \

}

/*

 * KERN_PROC subtypes

 */

#define KERN_PROC_ALL           0        /* everything */

#define KERN_PROC_PID           1       /* by process id */

#define KERN_PROC_PGRP          2       /* by process group id */

#define KERN_PROC_SESSION       3       /* by session of pid */

#define KERN_PROC_TTY           4       /* by controlling tty */

#define KERN_PROC_UID           5       /* by effective uid */

#define KERN_PROC_RUID          6       /* by real uid */

/*

 * CTL_HW identifiers

 */

#define HW_MACHINE       1              /* string: machine class */

#define HW_MODEL         2              /* string: specific machine model */

#define HW_NCPU          3              /* int: number of cpus */

#define HW_BYTEORDER     4              /* int: machine byte order */

#define HW_PHYSMEM       5              /* int: total memory */

#define HW_USERMEM       6              /* int: non-kernel memory */

#define HW_PAGESIZE      7              /* int: software page size */

#define HW_DISKNAMES     8              /* strings: disk drive names */

#define HW_DISKSTATS     9              /* struct: diskstats[] */

#define HW_FLOATINGPT   10              /* int: has HW floating point? */

#define HW_MACHINE_ARCH 11              /* string: machine architecture */

#define HW_MAXID        12              /* number of valid hw ids */

#define CTL_HW_NAMES { \

        { 0, 0 }, \

        { "machine", CTLTYPE_STRING }, \

        { "model", CTLTYPE_STRING }, \

        { "ncpu", CTLTYPE_INT }, \

        { "byteorder", CTLTYPE_INT }, \

        { "physmem", CTLTYPE_INT }, \

        { "usermem", CTLTYPE_INT }, \

        { "pagesize", CTLTYPE_INT }, \

        { "disknames", CTLTYPE_STRUCT }, \

        { "diskstats", CTLTYPE_STRUCT }, \

        { "floatingpoint", CTLTYPE_INT }, \

}

/*

 * CTL_USER definitions

 */

#define USER_CS_PATH             1      /* string: _CS_PATH */

#define USER_BC_BASE_MAX         2      /* int: BC_BASE_MAX */

#define USER_BC_DIM_MAX          3      /* int: BC_DIM_MAX */

#define USER_BC_SCALE_MAX        4      /* int: BC_SCALE_MAX */

#define USER_BC_STRING_MAX       5      /* int: BC_STRING_MAX */

#define USER_COLL_WEIGHTS_MAX    6      /* int: COLL_WEIGHTS_MAX */

#define USER_EXPR_NEST_MAX       7      /* int: EXPR_NEST_MAX */

#define USER_LINE_MAX            8      /* int: LINE_MAX */

#define USER_RE_DUP_MAX          9      /* int: RE_DUP_MAX */

#define USER_POSIX2_VERSION     10      /* int: POSIX2_VERSION */

#define USER_POSIX2_C_BIND      11      /* int: POSIX2_C_BIND */

#define USER_POSIX2_C_DEV       12      /* int: POSIX2_C_DEV */

#define USER_POSIX2_CHAR_TERM   13      /* int: POSIX2_CHAR_TERM */

#define USER_POSIX2_FORT_DEV    14      /* int: POSIX2_FORT_DEV */

#define USER_POSIX2_FORT_RUN    15      /* int: POSIX2_FORT_RUN */

#define USER_POSIX2_LOCALEDEF   16      /* int: POSIX2_LOCALEDEF */

#define USER_POSIX2_SW_DEV      17      /* int: POSIX2_SW_DEV */

#define USER_POSIX2_UPE         18      /* int: POSIX2_UPE */

#define USER_STREAM_MAX         19      /* int: POSIX2_STREAM_MAX */

#define USER_TZNAME_MAX         20      /* int: POSIX2_TZNAME_MAX */

#define USER_MAXID              21      /* number of valid user ids */

#define CTL_USER_NAMES { \

        { 0, 0 }, \

        { "cs_path", CTLTYPE_STRING }, \

        { "bc_base_max", CTLTYPE_INT }, \

        { "bc_dim_max", CTLTYPE_INT }, \

        { "bc_scale_max", CTLTYPE_INT }, \

        { "bc_string_max", CTLTYPE_INT }, \

        { "coll_weights_max", CTLTYPE_INT }, \

        { "expr_nest_max", CTLTYPE_INT }, \

        { "line_max", CTLTYPE_INT }, \

        { "re_dup_max", CTLTYPE_INT }, \

        { "posix2_version", CTLTYPE_INT }, \

        { "posix2_c_bind", CTLTYPE_INT }, \

        { "posix2_c_dev", CTLTYPE_INT }, \

        { "posix2_char_term", CTLTYPE_INT }, \

        { "posix2_fort_dev", CTLTYPE_INT }, \

        { "posix2_fort_run", CTLTYPE_INT }, \

        { "posix2_localedef", CTLTYPE_INT }, \

        { "posix2_sw_dev", CTLTYPE_INT }, \

        { "posix2_upe", CTLTYPE_INT }, \

        { "stream_max", CTLTYPE_INT }, \

        { "tzname_max", CTLTYPE_INT }, \

}

#ifdef KERNEL

extern char     cpu_model[];

extern char     machine[];

extern char     osrelease[];

extern char     ostype[];

int kernel_sysctl(struct proc *p, int *name, u_int namelen, void *old, size_t *oldlenp, void *new, size_t newlen, int *retval);

int userland_sysctl(struct proc *p, int *name, u_int namelen, void *old, size_t *oldlenp, int inkernel, void *new, size_t newlen, int *retval);

/*

int     sysctl_clockrate __P((char *, size_t*));

int     sysctl_file __P((char *, size_t*));

int     sysctl_doproc __P((int *, u_int, char *, size_t*));

int     sysctl_doprof __P((int *, u_int, void *, size_t *, void *, size_t));

*/

#else   /* !KERNEL */

#include <sys/cdefs.h>

__BEGIN_DECLS

int     sysctl __P((int *, u_int, void *, size_t *, void *, size_t));

int     sysctlbyname __P((const char *, void *, size_t *, void *, size_t));

__END_DECLS

#endif  /* KERNEL */

#endif  /* !_SYS_SYSCTL_H_ */