122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
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/* sysctl.h
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* should really be installed as sys/sysctl.h
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*/
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#ifndef _SYS_SYSCTL_H
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#define _SYS_SYSCTL_H
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/* This file contains definitions for the sysctl call.
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* The call uses a heirachy of names for objects that can be
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* examined or modified. The name is expressed as a sequence
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* of integers and works in a similar manner to a filename, ie each
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* component is dependant upon it's place in the heirachy.
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*
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* NB this file defines only the top level and kernel level (_KERN)
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* identifiers with others being defined in files specific to
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* the subsystem concerned.
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*/
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#define CTL_MAXNAME 12 /* This is the largest no. of components we support */
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/* Each subsystem defines a list of variables for that subsystem.
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* The name can either be:
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* - a node that has further levels defined below it, or
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* - a leaf in a particular type.
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* Each level of sysctl has a set of name/type pairs used when manipulating
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* that level.
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*/
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struct ctlname {
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char *ctl_name; /* the subsystem name */
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int ctl_type; /* type of name */
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};
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#define CTLTYPE_NODE 1 /* it's a node */
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#define CTLTYPE_INT 2 /* integer */
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#define CTLTYPE_STRING 3 /* string */
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#define CTLTYPE_QUAD 4 /* 64-bit number */
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#define CTLTYPE_STRUCT 5 /* it's a structure */
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/* The top level identifiers we support */
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#define CTL_UNSPEC 0 /* unused */
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#define CTL_KERN 1 /* Kernel level */
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#define CTL_VM 2 /* VM */
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#define CTL_FS 3 /* Filesystem */
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#define CTL_NET 4 /* networking (socket.h) */
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#define CTL_HW 5 /* hardware */
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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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{ "fs" , CTLTYPE_NODE }, \
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{ "net" , CTLTYPE_NODE }, \
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{ "hardware", CTL_TYPE_NODE }, \
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}
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/* Identifiers for use in the CTL_KERN subsystem */
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#define KERN_OSTYPE 1 /* string: system type string */
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#define KERN_OSRELEASE 2 /* string: system release */
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#define KERN_OSVERSION 3 /* int: system revision */
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#define KERN_HOSTNAME 4 /* string: hostname of system */
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#define KERN_DOMAINNAME 5 /* string: (YP) domain name */
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#define KERN_VERSION 6 /* string: system version string */
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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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{ "osversion" , CTLTYPE_STRING }, \
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{ "hostname" , CTLTYPE_STRING }, \
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{ "domainname" , CTLTYPE_STRING }, \
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{ "version" , CTLTYPE_STRING }, \
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}
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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_DISKCOUNT 10 /* int: number of disks */
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#define HW_MAXID 11 /* 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_STRING }, \
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{ "diskstats", CTLTYPE_STRUCT }, \
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{ "diskcount", CTLTYPE_INT }, \
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}
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#ifdef _KERNEL_MODE
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typedef int (sysctlfn)(int *, uint, void *, size_t *, void *, size_t);
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int kern_sysctl(int *, uint, void *, size_t *, void *, size_t);
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int hw_sysctl(int *, uint, void *, size_t *, void *, size_t);
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int sysctl_int (void *, size_t *, void *, size_t, int *);
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int sysctl_rdint (void *, size_t *, void *, int);
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int sysctl_tstring(void *, size_t *, void *, size_t, char *, int);
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int sysctl__string(void *, size_t *, void *, size_t, char *, int, int);
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int sysctl_rdstring(void *, size_t *, void *, char *);
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int user_sysctl(int *, uint, void *, size_t *, void *, size_t);
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#endif
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int sysctl(int *, uint, void *, size_t *, void *, size_t);
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#endif /* _SYS_SYSCTL_H */
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