2931901b1d
declaration macros so that a semicolon can be added when the macros are invoked without giving a (pedantic) syntax error. Invocations need to be followed by a semicolon so that programs like indent and gtags don't get confused. Fixed the one invocation that wasn't followed by a trailing semicolon.
406 lines
15 KiB
C
406 lines
15 KiB
C
/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Mike Karels at Berkeley Software Design, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)sysctl.h 8.1 (Berkeley) 6/2/93
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* $Id: sysctl.h,v 1.56 1997/09/07 05:27:26 bde Exp $
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*/
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#ifndef _SYS_SYSCTL_H_
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#define _SYS_SYSCTL_H_
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/*
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* Definitions for sysctl call. The sysctl call uses a hierarchical name
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* for objects that can be examined or modified. The name is expressed as
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* a sequence of integers. Like a file path name, the meaning of each
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* component depends on its place in the hierarchy. The top-level and kern
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* identifiers are defined here, and other identifiers are defined in the
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* respective subsystem header files.
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*/
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#define CTL_MAXNAME 12 /* largest number of components supported */
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/*
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* Each subsystem defined by sysctl defines a list of variables
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* for that subsystem. Each name is either a node with further
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* levels defined below it, or it is a leaf of some particular
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* type given below. Each sysctl level defines a set of name/type
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* pairs to be used by sysctl(1) in manipulating the subsystem.
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*/
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struct ctlname {
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char *ctl_name; /* subsystem name */
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int ctl_type; /* type of name */
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};
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#define CTLTYPE 0xf /* Mask for the type */
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#define CTLTYPE_NODE 1 /* name is a node */
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#define CTLTYPE_INT 2 /* name describes an integer */
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#define CTLTYPE_STRING 3 /* name describes a string */
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#define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
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#define CTLTYPE_OPAQUE 5 /* name describes a structure */
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#define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
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#define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
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#define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
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#define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
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#define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */
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#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
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/*
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* USE THIS instead of a hardwired number from the categories below
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* to get dynamically assigned sysctl entries using the linker-set
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* technology. This is the way nearly all new sysctl variables should
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* be implimented.
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* e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
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*/
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#define OID_AUTO (-1)
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#ifdef KERNEL
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#define SYSCTL_HANDLER_ARGS (struct sysctl_oid *oidp, void *arg1, int arg2, \
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struct sysctl_req *req)
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/*
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* This describes the access space for a sysctl request. This is needed
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* so that we can use the interface from the kernel or from user-space.
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*/
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struct sysctl_req {
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struct proc *p;
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int lock;
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void *oldptr;
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int oldlen;
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int oldidx;
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int (*oldfunc)(struct sysctl_req *, const void *, int);
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void *newptr;
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int newlen;
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int newidx;
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int (*newfunc)(struct sysctl_req *, void *, int);
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};
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/*
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* This describes one "oid" in the MIB tree. Potentially more nodes can
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* be hidden behind it, expanded by the handler.
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*/
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struct sysctl_oid {
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int oid_number;
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int oid_kind;
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void *oid_arg1;
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int oid_arg2;
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const char *oid_name;
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int (*oid_handler) SYSCTL_HANDLER_ARGS;
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const char *oid_fmt;
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};
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#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
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#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
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int sysctl_handle_int SYSCTL_HANDLER_ARGS;
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int sysctl_handle_string SYSCTL_HANDLER_ARGS;
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int sysctl_handle_opaque SYSCTL_HANDLER_ARGS;
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/* This is the "raw" function for a mib-oid */
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#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
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static const struct sysctl_oid sysctl__##parent##_##name = { \
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nbr, kind, a1, a2, #name, handler, fmt }; \
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TEXT_SET(sysctl_##parent, sysctl__##parent##_##name)
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/* This makes a node from which other oids can hang */
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#define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
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extern struct linker_set sysctl_##parent##_##name; \
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SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \
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(void*)&sysctl_##parent##_##name, 0, handler, "N", descr); \
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TEXT_SET(sysctl_##parent##_##name, sysctl__##parent##_##name)
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/* This is a string len can be 0 to indicate '\0' termination */
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#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
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SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \
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arg, len, sysctl_handle_string, "A", descr)
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/* This is a integer, if ptr is NULL, val is returned */
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#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
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SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
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ptr, val, sysctl_handle_int, "I", descr)
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/* This is anything, specified by a pointer and a lenth */
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#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
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SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
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ptr, len, sysctl_handle_opaque, fmt, descr)
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/* This is a struct, specified by a pointer and type */
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#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
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SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
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ptr, sizeof(struct type), sysctl_handle_opaque, \
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"S," #type, descr)
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/* Needs a proc. Specify by pointer and arg */
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#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
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SYSCTL_OID(parent, nbr, name, access, \
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ptr, arg, handler, fmt, descr)
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#endif /* KERNEL */
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/*
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* Top-level identifiers
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*/
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#define CTL_UNSPEC 0 /* unused */
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#define CTL_KERN 1 /* "high kernel": proc, limits */
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#define CTL_VM 2 /* virtual memory */
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#define CTL_VFS 3 /* file system, mount type is next */
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#define CTL_NET 4 /* network, see socket.h */
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#define CTL_DEBUG 5 /* debugging parameters */
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#define CTL_HW 6 /* generic cpu/io */
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#define CTL_MACHDEP 7 /* machine dependent */
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#define CTL_USER 8 /* user-level */
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#define CTL_MAXID 9 /* number of valid top-level ids */
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#define CTL_NAMES { \
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{ 0, 0 }, \
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{ "kern", CTLTYPE_NODE }, \
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{ "vm", CTLTYPE_NODE }, \
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{ "vfs", CTLTYPE_NODE }, \
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{ "net", CTLTYPE_NODE }, \
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{ "debug", CTLTYPE_NODE }, \
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{ "hw", CTLTYPE_NODE }, \
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{ "machdep", CTLTYPE_NODE }, \
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{ "user", CTLTYPE_NODE }, \
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}
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/*
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* CTL_KERN identifiers
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*/
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#define KERN_OSTYPE 1 /* string: system version */
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#define KERN_OSRELEASE 2 /* string: system release */
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#define KERN_OSREV 3 /* int: system revision */
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#define KERN_VERSION 4 /* string: compile time info */
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#define KERN_MAXVNODES 5 /* int: max vnodes */
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#define KERN_MAXPROC 6 /* int: max processes */
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#define KERN_MAXFILES 7 /* int: max open files */
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#define KERN_ARGMAX 8 /* int: max arguments to exec */
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#define KERN_SECURELVL 9 /* int: system security level */
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#define KERN_HOSTNAME 10 /* string: hostname */
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#define KERN_HOSTID 11 /* int: host identifier */
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#define KERN_CLOCKRATE 12 /* struct: struct clockrate */
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#define KERN_VNODE 13 /* struct: vnode structures */
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#define KERN_PROC 14 /* struct: process entries */
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#define KERN_FILE 15 /* struct: file entries */
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#define KERN_PROF 16 /* node: kernel profiling info */
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#define KERN_POSIX1 17 /* int: POSIX.1 version */
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#define KERN_NGROUPS 18 /* int: # of supplemental group ids */
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#define KERN_JOB_CONTROL 19 /* int: is job control available */
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#define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
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#define KERN_BOOTTIME 21 /* struct: time kernel was booted */
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#define KERN_NISDOMAINNAME 22 /* string: YP domain name */
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#define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
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#define KERN_OSRELDATE 24 /* int: OS release date */
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#define KERN_NTP_PLL 25 /* node: NTP PLL control */
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#define KERN_BOOTFILE 26 /* string: name of booted kernel */
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#define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
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#define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
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#define KERN_DUMPDEV 29 /* dev_t: device to dump on */
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#define KERN_IPC 30 /* node: anything related to IPC */
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#define KERN_DUMMY 31 /* unused */
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#define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
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#define KERN_USRSTACK 33 /* int: address of USRSTACK */
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#define KERN_MAXID 34 /* number of valid kern ids */
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#define CTL_KERN_NAMES { \
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{ 0, 0 }, \
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{ "ostype", CTLTYPE_STRING }, \
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{ "osrelease", CTLTYPE_STRING }, \
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{ "osrevision", CTLTYPE_INT }, \
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{ "version", CTLTYPE_STRING }, \
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{ "maxvnodes", CTLTYPE_INT }, \
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{ "maxproc", CTLTYPE_INT }, \
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{ "maxfiles", CTLTYPE_INT }, \
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{ "argmax", CTLTYPE_INT }, \
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{ "securelevel", CTLTYPE_INT }, \
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{ "hostname", CTLTYPE_STRING }, \
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{ "hostid", CTLTYPE_INT }, \
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{ "clockrate", CTLTYPE_STRUCT }, \
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{ "vnode", CTLTYPE_STRUCT }, \
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{ "proc", CTLTYPE_STRUCT }, \
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{ "file", CTLTYPE_STRUCT }, \
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{ "profiling", CTLTYPE_NODE }, \
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{ "posix1version", CTLTYPE_INT }, \
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{ "ngroups", CTLTYPE_INT }, \
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{ "job_control", CTLTYPE_INT }, \
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{ "saved_ids", CTLTYPE_INT }, \
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{ "boottime", CTLTYPE_STRUCT }, \
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{ "nisdomainname", CTLTYPE_STRING }, \
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{ "update", CTLTYPE_INT }, \
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{ "osreldate", CTLTYPE_INT }, \
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{ "ntp_pll", CTLTYPE_NODE }, \
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{ "bootfile", CTLTYPE_STRING }, \
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{ "maxfilesperproc", CTLTYPE_INT }, \
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{ "maxprocperuid", CTLTYPE_INT }, \
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{ "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
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{ "ipc", CTLTYPE_NODE }, \
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{ "dummy", CTLTYPE_INT }, \
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{ "ps_strings", CTLTYPE_INT }, \
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{ "usrstack", CTLTYPE_INT }, \
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}
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/*
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* CTL_VFS identifiers
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*/
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#define CTL_VFS_NAMES { \
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{ "vfsconf", CTLTYPE_STRUCT }, \
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}
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/*
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* KERN_PROC subtypes
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*/
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#define KERN_PROC_ALL 0 /* everything */
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#define KERN_PROC_PID 1 /* by process id */
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#define KERN_PROC_PGRP 2 /* by process group id */
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#define KERN_PROC_SESSION 3 /* by session of pid */
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#define KERN_PROC_TTY 4 /* by controlling tty */
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#define KERN_PROC_UID 5 /* by effective uid */
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#define KERN_PROC_RUID 6 /* by real uid */
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/*
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* KERN_IPC identifiers
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*/
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#define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
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#define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
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#define KIPC_SOMAXCONN 3 /* int: max length of connection q */
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#define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
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#define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
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#define KIPC_MAX_HDR 6 /* int: max total length of headers */
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#define KIPC_MAX_DATALEN 7 /* int: max length of data? */
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#define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
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/*
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* CTL_HW identifiers
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*/
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#define HW_MACHINE 1 /* string: machine class */
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#define HW_MODEL 2 /* string: specific machine model */
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#define HW_NCPU 3 /* int: number of cpus */
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#define HW_BYTEORDER 4 /* int: machine byte order */
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#define HW_PHYSMEM 5 /* int: total memory */
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#define HW_USERMEM 6 /* int: non-kernel memory */
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#define HW_PAGESIZE 7 /* int: software page size */
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#define HW_DISKNAMES 8 /* strings: disk drive names */
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#define HW_DISKSTATS 9 /* struct: diskstats[] */
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#define HW_FLOATINGPT 10 /* int: has HW floating point? */
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#define HW_MACHINE_ARCH 11 /* string: machine architecture */
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#define HW_MAXID 12 /* number of valid hw ids */
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#define CTL_HW_NAMES { \
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{ 0, 0 }, \
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{ "machine", CTLTYPE_STRING }, \
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{ "model", CTLTYPE_STRING }, \
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{ "ncpu", CTLTYPE_INT }, \
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{ "byteorder", CTLTYPE_INT }, \
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{ "physmem", CTLTYPE_INT }, \
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{ "usermem", CTLTYPE_INT }, \
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{ "pagesize", CTLTYPE_INT }, \
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{ "disknames", CTLTYPE_STRUCT }, \
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{ "diskstats", CTLTYPE_STRUCT }, \
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{ "floatingpoint", CTLTYPE_INT }, \
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}
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/*
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* CTL_USER definitions
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*/
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#define USER_CS_PATH 1 /* string: _CS_PATH */
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#define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
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#define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
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#define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
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#define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
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#define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
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#define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
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#define USER_LINE_MAX 8 /* int: LINE_MAX */
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#define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
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#define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
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#define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
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#define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
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#define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
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#define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
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#define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
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#define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
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#define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
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#define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
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#define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
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#define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
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#define USER_MAXID 21 /* number of valid user ids */
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#define CTL_USER_NAMES { \
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{ 0, 0 }, \
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{ "cs_path", CTLTYPE_STRING }, \
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{ "bc_base_max", CTLTYPE_INT }, \
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{ "bc_dim_max", CTLTYPE_INT }, \
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{ "bc_scale_max", CTLTYPE_INT }, \
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{ "bc_string_max", CTLTYPE_INT }, \
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{ "coll_weights_max", CTLTYPE_INT }, \
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{ "expr_nest_max", CTLTYPE_INT }, \
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{ "line_max", CTLTYPE_INT }, \
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{ "re_dup_max", CTLTYPE_INT }, \
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{ "posix2_version", CTLTYPE_INT }, \
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{ "posix2_c_bind", CTLTYPE_INT }, \
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{ "posix2_c_dev", CTLTYPE_INT }, \
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{ "posix2_char_term", CTLTYPE_INT }, \
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{ "posix2_fort_dev", CTLTYPE_INT }, \
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{ "posix2_fort_run", CTLTYPE_INT }, \
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{ "posix2_localedef", CTLTYPE_INT }, \
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{ "posix2_sw_dev", CTLTYPE_INT }, \
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{ "posix2_upe", CTLTYPE_INT }, \
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{ "stream_max", CTLTYPE_INT }, \
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{ "tzname_max", CTLTYPE_INT }, \
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}
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#ifdef KERNEL
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extern char machine[];
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extern char osrelease[];
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extern char ostype[];
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int kernel_sysctl(struct proc *p, int *name, u_int namelen, void *old, size_t *oldlenp, void *new, size_t newlen, int *retval);
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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);
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/*
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int sysctl_clockrate __P((char *, size_t*));
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int sysctl_file __P((char *, size_t*));
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int sysctl_doproc __P((int *, u_int, char *, size_t*));
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int sysctl_doprof __P((int *, u_int, void *, size_t *, void *, size_t));
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*/
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#else /* !KERNEL */
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
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int sysctlbyname __P((const char *, void *, size_t *, void *, size_t));
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__END_DECLS
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#endif /* KERNEL */
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#endif /* !_SYS_SYSCTL_H_ */
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