source: rtems/cpukit/libnetworking/sys/sysctl.h @ 1cb54d1f

4.104.115
Last change on this file since 1cb54d1f was 1cb54d1f, checked in by Ralf Corsepius <ralf.corsepius@…>, on 12/11/08 at 00:47:56

#include <stdint.h> instead of <rtems/stdint.h>.
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1/*
2 * Copyright (c) 1989, 1993
3 *      The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Mike Karels at Berkeley Software Design, Inc.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *      @(#)sysctl.h    8.1 (Berkeley) 6/2/93
33 * $FreeBSD: src/sys/sys/sysctl.h,v 1.133 2004/10/11 22:04:16 peter Exp $
34 */
35
36#ifndef _SYS_SYSCTL_H_
37#define _SYS_SYSCTL_H_
38
39#include <stdint.h>
40#include <rtems/bsd/sys/queue.h>
41
42struct thread;
43/*
44 * Definitions for sysctl call.  The sysctl call uses a hierarchical name
45 * for objects that can be examined or modified.  The name is expressed as
46 * a sequence of integers.  Like a file path name, the meaning of each
47 * component depends on its place in the hierarchy.  The top-level and kern
48 * identifiers are defined here, and other identifiers are defined in the
49 * respective subsystem header files.
50 */
51
52#define CTL_MAXNAME     24      /* largest number of components supported */
53
54/*
55 * Each subsystem defined by sysctl defines a list of variables
56 * for that subsystem. Each name is either a node with further
57 * levels defined below it, or it is a leaf of some particular
58 * type given below. Each sysctl level defines a set of name/type
59 * pairs to be used by sysctl(8) in manipulating the subsystem.
60 */
61struct ctlname {
62        char    *ctl_name;      /* subsystem name */
63        int     ctl_type;       /* type of name */
64};
65
66#define CTLTYPE         0xf     /* Mask for the type */
67#define CTLTYPE_NODE    1       /* name is a node */
68#define CTLTYPE_INT     2       /* name describes an integer */
69#define CTLTYPE_STRING  3       /* name describes a string */
70#define CTLTYPE_QUAD    4       /* name describes a 64-bit number */
71#define CTLTYPE_OPAQUE  5       /* name describes a structure */
72#define CTLTYPE_STRUCT  CTLTYPE_OPAQUE  /* name describes a structure */
73#define CTLTYPE_UINT    6       /* name describes an unsigned integer */
74#define CTLTYPE_LONG    7       /* name describes a long */
75#define CTLTYPE_ULONG   8       /* name describes an unsigned long */
76
77#define CTLFLAG_RD      0x80000000      /* Allow reads of variable */
78#define CTLFLAG_WR      0x40000000      /* Allow writes to the variable */
79#define CTLFLAG_RW      (CTLFLAG_RD|CTLFLAG_WR)
80#define CTLFLAG_NOLOCK  0x20000000      /* XXX Don't Lock */
81#define CTLFLAG_ANYBODY 0x10000000      /* All users can set this var */
82#define CTLFLAG_SECURE  0x08000000      /* Permit set only if securelevel<=0 */
83#define CTLFLAG_PRISON  0x04000000      /* Prisoned roots can fiddle */
84#define CTLFLAG_DYN     0x02000000      /* Dynamic oid - can be freed */
85#define CTLFLAG_SKIP    0x01000000      /* Skip this sysctl when listing */
86#define CTLMASK_SECURE  0x00F00000      /* Secure level */
87#define CTLFLAG_TUN     0x00080000      /* Tunable variable */
88#define CTLFLAG_RDTUN   (CTLFLAG_RD|CTLFLAG_TUN)
89
90/*
91 * Secure level.   Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. 
92 *
93 * Secure when the securelevel is raised to at least N.
94 */
95#define CTLSHIFT_SECURE 20
96#define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE))
97#define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE))
98#define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE))
99
100/*
101 * USE THIS instead of a hardwired number from the categories below
102 * to get dynamically assigned sysctl entries using the linker-set
103 * technology. This is the way nearly all new sysctl variables should
104 * be implemented.
105 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
106 */
107#define OID_AUTO        (-1)
108
109/*
110 * The starting number for dynamically-assigned entries.  WARNING!
111 * ALL static sysctl entries should have numbers LESS than this!
112 */
113#define CTL_AUTO_START  0x100
114
115#ifdef _KERNEL
116#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \
117        struct sysctl_req *req
118
119/* definitions for sysctl_req 'lock' member */
120#define REQ_UNLOCKED    0       /* not locked and not wired */
121#define REQ_LOCKED      1       /* locked and not wired */
122#define REQ_WIRED       2       /* locked and wired */
123
124/*
125 * This describes the access space for a sysctl request.  This is needed
126 * so that we can use the interface from the kernel or from user-space.
127 */
128struct sysctl_req {
129        struct thread   *td;            /* used for access checking */
130        int             lock;           /* locking/wiring state */
131        void            *oldptr;
132        size_t          oldlen;
133        size_t          oldidx;
134        int             (*oldfunc)(struct sysctl_req *, const void *, size_t);
135        void            *newptr;
136        size_t          newlen;
137        size_t          newidx;
138        int             (*newfunc)(struct sysctl_req *, void *, size_t);
139        size_t          validlen;
140};
141
142SLIST_HEAD(sysctl_oid_list, sysctl_oid);
143
144/*
145 * This describes one "oid" in the MIB tree.  Potentially more nodes can
146 * be hidden behind it, expanded by the handler.
147 */
148struct sysctl_oid {
149        struct sysctl_oid_list *oid_parent;
150        SLIST_ENTRY(sysctl_oid) oid_link;
151        int             oid_number;
152        uint32_t        oid_kind;
153        void            *oid_arg1;
154        int             oid_arg2;
155        const char      *oid_name;
156        int             (*oid_handler)(SYSCTL_HANDLER_ARGS);
157        const char      *oid_fmt;
158        int             oid_refcnt;
159        const char      *descr;
160};
161
162#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
163#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
164
165int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
166int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
167int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS);
168int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
169int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
170
171/*
172 * These functions are used to add/remove an oid from the mib.
173 */
174void sysctl_register_oid(struct sysctl_oid *oidp);
175void sysctl_unregister_oid(struct sysctl_oid *oidp);
176
177/* Declare a static oid to allow child oids to be added to it. */
178#define SYSCTL_DECL(name)                                       \
179        extern struct sysctl_oid_list sysctl_##name##_children
180
181/* Hide these in macros */
182#define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \
183        (oid_ptr)->oid_arg1
184#define SYSCTL_CHILDREN_SET(oid_ptr, val) \
185        (oid_ptr)->oid_arg1 = (val);
186#define SYSCTL_STATIC_CHILDREN(oid_name) \
187        (&sysctl_##oid_name##_children)
188
189/* === Structs and macros related to context handling === */
190
191/* All dynamically created sysctls can be tracked in a context list. */
192struct sysctl_ctx_entry {
193        struct sysctl_oid *entry;
194        TAILQ_ENTRY(sysctl_ctx_entry) link;
195};
196
197TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
198
199#define SYSCTL_NODE_CHILDREN(parent, name) \
200        sysctl_##parent##_##name##_children
201
202/* This constructs a "raw" MIB oid. */
203#define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
204        static struct sysctl_oid sysctl__##parent##_##name = {           \
205                &sysctl_##parent##_children, { 0 },                      \
206                nbr, kind, a1, a2, #name, handler, fmt, 0, descr };      \
207        DATA_SET(sysctl_set, sysctl__##parent##_##name)
208
209#define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
210        sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr)
211
212/* This constructs a node from which other oids can hang. */
213#define SYSCTL_NODE(parent, nbr, name, access, handler, descr)              \
214        struct sysctl_oid_list SYSCTL_NODE_CHILDREN(parent, name);          \
215        SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|(access),                \
216                   (void*)&SYSCTL_NODE_CHILDREN(parent, name), 0, handler, \
217                   "N", descr)
218
219#define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr)     \
220        sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access),       \
221        0, 0, handler, "N", descr)
222
223/* Oid for a string.  len can be 0 to indicate '\0' termination. */
224#define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
225        SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \
226                arg, len, sysctl_handle_string, "A", descr)
227
228#define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr)  \
229        sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access),     \
230        arg, len, sysctl_handle_string, "A", descr)
231
232/* Oid for an int.  If ptr is NULL, val is returned. */
233#define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
234        SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|(access), \
235                ptr, val, sysctl_handle_int, "I", descr)
236
237#define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr)     \
238        sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|(access),        \
239        ptr, val, sysctl_handle_int, "I", descr)
240
241/* Oid for an unsigned int.  If ptr is NULL, val is returned. */
242#define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
243        SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|(access), \
244                ptr, val, sysctl_handle_int, "IU", descr)
245
246#define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr)    \
247        sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|(access),       \
248        ptr, val, sysctl_handle_int, "IU", descr)
249
250/* Oid for a long.  The pointer must be non NULL. */
251#define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
252        SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|(access), \
253                ptr, val, sysctl_handle_long, "L", descr)
254
255#define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr)         \
256        sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|(access),       \
257        ptr, 0, sysctl_handle_long, "L", descr)
258
259/* Oid for an unsigned long.  The pointer must be non NULL. */
260#define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
261        SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|(access), \
262                ptr, val, sysctl_handle_long, "LU", descr)
263
264#define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr)        \
265        sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|(access),      \
266        ptr, 0, sysctl_handle_long, "LU", descr)
267
268/* Oid for an opaque object.  Specified by a pointer and a length. */
269#define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
270        SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
271                ptr, len, sysctl_handle_opaque, fmt, descr)
272
273#define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\
274        sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access),     \
275        ptr, len, sysctl_handle_opaque, fmt, descr)
276
277/* Oid for a struct.  Specified by a pointer and a type. */
278#define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
279        SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \
280                ptr, sizeof(struct type), sysctl_handle_opaque, \
281                "S," #type, descr)
282
283#define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
284        sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access),     \
285        ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr)
286
287/* Oid for a procedure.  Specified by a pointer and an arg. */
288#define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
289        SYSCTL_OID(parent, nbr, name, (access), \
290                ptr, arg, handler, fmt, descr)
291
292#define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
293        sysctl_add_oid(ctx, parent, nbr, name, (access),                            \
294        ptr, arg, handler, fmt, descr)
295
296#endif /* _KERNEL */
297
298/*
299 * Top-level identifiers
300 */
301#define CTL_UNSPEC      0               /* unused */
302#define CTL_KERN        1               /* "high kernel": proc, limits */
303#define CTL_VM          2               /* virtual memory */
304#define CTL_VFS         3               /* filesystem, mount type is next */
305#define CTL_NET         4               /* network, see socket.h */
306#define CTL_DEBUG       5               /* debugging parameters */
307#define CTL_HW          6               /* generic cpu/io */
308#define CTL_MACHDEP     7               /* machine dependent */
309#define CTL_USER        8               /* user-level */
310#define CTL_P1003_1B    9               /* POSIX 1003.1B */
311#define CTL_MAXID       10              /* number of valid top-level ids */
312
313#define CTL_NAMES { \
314        { 0, 0 }, \
315        { "kern", CTLTYPE_NODE }, \
316        { "vm", CTLTYPE_NODE }, \
317        { "vfs", CTLTYPE_NODE }, \
318        { "net", CTLTYPE_NODE }, \
319        { "debug", CTLTYPE_NODE }, \
320        { "hw", CTLTYPE_NODE }, \
321        { "machdep", CTLTYPE_NODE }, \
322        { "user", CTLTYPE_NODE }, \
323        { "p1003_1b", CTLTYPE_NODE }, \
324}
325
326/*
327 * CTL_KERN identifiers
328 */
329#define KERN_OSTYPE              1      /* string: system version */
330#define KERN_OSRELEASE           2      /* string: system release */
331#define KERN_OSREV               3      /* int: system revision */
332#define KERN_VERSION             4      /* string: compile time info */
333#define KERN_MAXVNODES           5      /* int: max vnodes */
334#define KERN_MAXPROC             6      /* int: max processes */
335#define KERN_MAXFILES            7      /* int: max open files */
336#define KERN_ARGMAX              8      /* int: max arguments to exec */
337#define KERN_SECURELVL           9      /* int: system security level */
338#define KERN_HOSTNAME           10      /* string: hostname */
339#define KERN_HOSTID             11      /* int: host identifier */
340#define KERN_CLOCKRATE          12      /* struct: struct clockrate */
341#define KERN_VNODE              13      /* struct: vnode structures */
342#define KERN_PROC               14      /* struct: process entries */
343#define KERN_FILE               15      /* struct: file entries */
344#define KERN_PROF               16      /* node: kernel profiling info */
345#define KERN_POSIX1             17      /* int: POSIX.1 version */
346#define KERN_NGROUPS            18      /* int: # of supplemental group ids */
347#define KERN_JOB_CONTROL        19      /* int: is job control available */
348#define KERN_SAVED_IDS          20      /* int: saved set-user/group-ID */
349#define KERN_BOOTTIME           21      /* struct: time kernel was booted */
350#define KERN_NISDOMAINNAME      22      /* string: YP domain name */
351#define KERN_UPDATEINTERVAL     23      /* int: update process sleep time */
352#define KERN_OSRELDATE          24      /* int: kernel release date */
353#define KERN_NTP_PLL            25      /* node: NTP PLL control */
354#define KERN_BOOTFILE           26      /* string: name of booted kernel */
355#define KERN_MAXFILESPERPROC    27      /* int: max open files per proc */
356#define KERN_MAXPROCPERUID      28      /* int: max processes per uid */
357#define KERN_DUMPDEV            29      /* struct cdev *: device to dump on */
358#define KERN_IPC                30      /* node: anything related to IPC */
359#define KERN_DUMMY              31      /* unused */
360#define KERN_PS_STRINGS         32      /* int: address of PS_STRINGS */
361#define KERN_USRSTACK           33      /* int: address of USRSTACK */
362#define KERN_LOGSIGEXIT         34      /* int: do we log sigexit procs? */
363#define KERN_IOV_MAX            35      /* int: value of UIO_MAXIOV */
364#define KERN_MAXID              36      /* number of valid kern ids */
365
366#define CTL_KERN_NAMES { \
367        { 0, 0 }, \
368        { "ostype", CTLTYPE_STRING }, \
369        { "osrelease", CTLTYPE_STRING }, \
370        { "osrevision", CTLTYPE_INT }, \
371        { "version", CTLTYPE_STRING }, \
372        { "maxvnodes", CTLTYPE_INT }, \
373        { "maxproc", CTLTYPE_INT }, \
374        { "maxfiles", CTLTYPE_INT }, \
375        { "argmax", CTLTYPE_INT }, \
376        { "securelevel", CTLTYPE_INT }, \
377        { "hostname", CTLTYPE_STRING }, \
378        { "hostid", CTLTYPE_UINT }, \
379        { "clockrate", CTLTYPE_STRUCT }, \
380        { "vnode", CTLTYPE_STRUCT }, \
381        { "proc", CTLTYPE_STRUCT }, \
382        { "file", CTLTYPE_STRUCT }, \
383        { "profiling", CTLTYPE_NODE }, \
384        { "posix1version", CTLTYPE_INT }, \
385        { "ngroups", CTLTYPE_INT }, \
386        { "job_control", CTLTYPE_INT }, \
387        { "saved_ids", CTLTYPE_INT }, \
388        { "boottime", CTLTYPE_STRUCT }, \
389        { "nisdomainname", CTLTYPE_STRING }, \
390        { "update", CTLTYPE_INT }, \
391        { "osreldate", CTLTYPE_INT }, \
392        { "ntp_pll", CTLTYPE_NODE }, \
393        { "bootfile", CTLTYPE_STRING }, \
394        { "maxfilesperproc", CTLTYPE_INT }, \
395        { "maxprocperuid", CTLTYPE_INT }, \
396        { "ipc", CTLTYPE_NODE }, \
397        { "dummy", CTLTYPE_INT }, \
398        { "ps_strings", CTLTYPE_INT }, \
399        { "usrstack", CTLTYPE_INT }, \
400        { "logsigexit", CTLTYPE_INT }, \
401        { "iov_max", CTLTYPE_INT }, \
402}
403
404/*
405 * CTL_VFS identifiers
406 */
407#define CTL_VFS_NAMES { \
408        { "vfsconf", CTLTYPE_STRUCT }, \
409}
410
411/*
412 * KERN_PROC subtypes
413 */
414#define KERN_PROC_ALL           0       /* everything */
415#define KERN_PROC_PID           1       /* by process id */
416#define KERN_PROC_PGRP          2       /* by process group id */
417#define KERN_PROC_SESSION       3       /* by session of pid */
418#define KERN_PROC_TTY           4       /* by controlling tty */
419#define KERN_PROC_UID           5       /* by effective uid */
420#define KERN_PROC_RUID          6       /* by real uid */
421#define KERN_PROC_ARGS          7       /* get/set arguments/proctitle */
422#define KERN_PROC_PROC          8       /* only return procs */
423#define KERN_PROC_SV_NAME       9       /* get syscall vector name */
424#define KERN_PROC_RGID          10      /* by real group id */
425#define KERN_PROC_GID           11      /* by effective group id */
426#define KERN_PROC_INC_THREAD    0x10    /*
427                                         * modifier for pid, pgrp, tty,
428                                         * uid, ruid, gid, rgid and proc
429                                         */
430
431/*
432 * KERN_IPC identifiers
433 */
434#define KIPC_MAXSOCKBUF         1       /* int: max size of a socket buffer */
435#define KIPC_SOCKBUF_WASTE      2       /* int: wastage factor in sockbuf */
436#define KIPC_SOMAXCONN          3       /* int: max length of connection q */
437#define KIPC_MAX_LINKHDR        4       /* int: max length of link header */
438#define KIPC_MAX_PROTOHDR       5       /* int: max length of network header */
439#define KIPC_MAX_HDR            6       /* int: max total length of headers */
440#define KIPC_MAX_DATALEN        7       /* int: max length of data? */
441
442/*
443 * CTL_HW identifiers
444 */
445#define HW_MACHINE       1              /* string: machine class */
446#define HW_MODEL         2              /* string: specific machine model */
447#define HW_NCPU          3              /* int: number of cpus */
448#define HW_BYTEORDER     4              /* int: machine byte order */
449#define HW_PHYSMEM       5              /* int: total memory */
450#define HW_USERMEM       6              /* int: non-kernel memory */
451#define HW_PAGESIZE      7              /* int: software page size */
452#define HW_DISKNAMES     8              /* strings: disk drive names */
453#define HW_DISKSTATS     9              /* struct: diskstats[] */
454#define HW_FLOATINGPT   10              /* int: has HW floating point? */
455#define HW_MACHINE_ARCH 11              /* string: machine architecture */
456#define HW_MAXID        12              /* number of valid hw ids */
457
458#define CTL_HW_NAMES { \
459        { 0, 0 }, \
460        { "machine", CTLTYPE_STRING }, \
461        { "model", CTLTYPE_STRING }, \
462        { "ncpu", CTLTYPE_INT }, \
463        { "byteorder", CTLTYPE_INT }, \
464        { "physmem", CTLTYPE_ULONG }, \
465        { "usermem", CTLTYPE_ULONG }, \
466        { "pagesize", CTLTYPE_INT }, \
467        { "disknames", CTLTYPE_STRUCT }, \
468        { "diskstats", CTLTYPE_STRUCT }, \
469        { "floatingpoint", CTLTYPE_INT }, \
470}
471
472/*
473 * CTL_USER definitions
474 */
475#define USER_CS_PATH             1      /* string: _CS_PATH */
476#define USER_BC_BASE_MAX         2      /* int: BC_BASE_MAX */
477#define USER_BC_DIM_MAX          3      /* int: BC_DIM_MAX */
478#define USER_BC_SCALE_MAX        4      /* int: BC_SCALE_MAX */
479#define USER_BC_STRING_MAX       5      /* int: BC_STRING_MAX */
480#define USER_COLL_WEIGHTS_MAX    6      /* int: COLL_WEIGHTS_MAX */
481#define USER_EXPR_NEST_MAX       7      /* int: EXPR_NEST_MAX */
482#define USER_LINE_MAX            8      /* int: LINE_MAX */
483#define USER_RE_DUP_MAX          9      /* int: RE_DUP_MAX */
484#define USER_POSIX2_VERSION     10      /* int: POSIX2_VERSION */
485#define USER_POSIX2_C_BIND      11      /* int: POSIX2_C_BIND */
486#define USER_POSIX2_C_DEV       12      /* int: POSIX2_C_DEV */
487#define USER_POSIX2_CHAR_TERM   13      /* int: POSIX2_CHAR_TERM */
488#define USER_POSIX2_FORT_DEV    14      /* int: POSIX2_FORT_DEV */
489#define USER_POSIX2_FORT_RUN    15      /* int: POSIX2_FORT_RUN */
490#define USER_POSIX2_LOCALEDEF   16      /* int: POSIX2_LOCALEDEF */
491#define USER_POSIX2_SW_DEV      17      /* int: POSIX2_SW_DEV */
492#define USER_POSIX2_UPE         18      /* int: POSIX2_UPE */
493#define USER_STREAM_MAX         19      /* int: POSIX2_STREAM_MAX */
494#define USER_TZNAME_MAX         20      /* int: POSIX2_TZNAME_MAX */
495#define USER_MAXID              21      /* number of valid user ids */
496
497#define CTL_USER_NAMES { \
498        { 0, 0 }, \
499        { "cs_path", CTLTYPE_STRING }, \
500        { "bc_base_max", CTLTYPE_INT }, \
501        { "bc_dim_max", CTLTYPE_INT }, \
502        { "bc_scale_max", CTLTYPE_INT }, \
503        { "bc_string_max", CTLTYPE_INT }, \
504        { "coll_weights_max", CTLTYPE_INT }, \
505        { "expr_nest_max", CTLTYPE_INT }, \
506        { "line_max", CTLTYPE_INT }, \
507        { "re_dup_max", CTLTYPE_INT }, \
508        { "posix2_version", CTLTYPE_INT }, \
509        { "posix2_c_bind", CTLTYPE_INT }, \
510        { "posix2_c_dev", CTLTYPE_INT }, \
511        { "posix2_char_term", CTLTYPE_INT }, \
512        { "posix2_fort_dev", CTLTYPE_INT }, \
513        { "posix2_fort_run", CTLTYPE_INT }, \
514        { "posix2_localedef", CTLTYPE_INT }, \
515        { "posix2_sw_dev", CTLTYPE_INT }, \
516        { "posix2_upe", CTLTYPE_INT }, \
517        { "stream_max", CTLTYPE_INT }, \
518        { "tzname_max", CTLTYPE_INT }, \
519}
520
521#define CTL_P1003_1B_ASYNCHRONOUS_IO            1       /* boolean */
522#define CTL_P1003_1B_MAPPED_FILES               2       /* boolean */
523#define CTL_P1003_1B_MEMLOCK                    3       /* boolean */
524#define CTL_P1003_1B_MEMLOCK_RANGE              4       /* boolean */
525#define CTL_P1003_1B_MEMORY_PROTECTION          5       /* boolean */
526#define CTL_P1003_1B_MESSAGE_PASSING            6       /* boolean */
527#define CTL_P1003_1B_PRIORITIZED_IO             7       /* boolean */
528#define CTL_P1003_1B_PRIORITY_SCHEDULING        8       /* boolean */
529#define CTL_P1003_1B_REALTIME_SIGNALS           9       /* boolean */
530#define CTL_P1003_1B_SEMAPHORES                 10      /* boolean */
531#define CTL_P1003_1B_FSYNC                      11      /* boolean */
532#define CTL_P1003_1B_SHARED_MEMORY_OBJECTS      12      /* boolean */
533#define CTL_P1003_1B_SYNCHRONIZED_IO            13      /* boolean */
534#define CTL_P1003_1B_TIMERS                     14      /* boolean */
535#define CTL_P1003_1B_AIO_LISTIO_MAX             15      /* int */
536#define CTL_P1003_1B_AIO_MAX                    16      /* int */
537#define CTL_P1003_1B_AIO_PRIO_DELTA_MAX         17      /* int */
538#define CTL_P1003_1B_DELAYTIMER_MAX             18      /* int */
539#define CTL_P1003_1B_MQ_OPEN_MAX                19      /* int */
540#define CTL_P1003_1B_PAGESIZE                   20      /* int */
541#define CTL_P1003_1B_RTSIG_MAX                  21      /* int */
542#define CTL_P1003_1B_SEM_NSEMS_MAX              22      /* int */
543#define CTL_P1003_1B_SEM_VALUE_MAX              23      /* int */
544#define CTL_P1003_1B_SIGQUEUE_MAX               24      /* int */
545#define CTL_P1003_1B_TIMER_MAX                  25      /* int */
546
547#define CTL_P1003_1B_MAXID              26
548
549#define CTL_P1003_1B_NAMES { \
550        { 0, 0 }, \
551        { "asynchronous_io", CTLTYPE_INT }, \
552        { "mapped_files", CTLTYPE_INT }, \
553        { "memlock", CTLTYPE_INT }, \
554        { "memlock_range", CTLTYPE_INT }, \
555        { "memory_protection", CTLTYPE_INT }, \
556        { "message_passing", CTLTYPE_INT }, \
557        { "prioritized_io", CTLTYPE_INT }, \
558        { "priority_scheduling", CTLTYPE_INT }, \
559        { "realtime_signals", CTLTYPE_INT }, \
560        { "semaphores", CTLTYPE_INT }, \
561        { "fsync", CTLTYPE_INT }, \
562        { "shared_memory_objects", CTLTYPE_INT }, \
563        { "synchronized_io", CTLTYPE_INT }, \
564        { "timers", CTLTYPE_INT }, \
565        { "aio_listio_max", CTLTYPE_INT }, \
566        { "aio_max", CTLTYPE_INT }, \
567        { "aio_prio_delta_max", CTLTYPE_INT }, \
568        { "delaytimer_max", CTLTYPE_INT }, \
569        { "mq_open_max", CTLTYPE_INT }, \
570        { "pagesize", CTLTYPE_INT }, \
571        { "rtsig_max", CTLTYPE_INT }, \
572        { "nsems_max", CTLTYPE_INT }, \
573        { "sem_value_max", CTLTYPE_INT }, \
574        { "sigqueue_max", CTLTYPE_INT }, \
575        { "timer_max", CTLTYPE_INT }, \
576}
577
578#ifdef _KERNEL
579
580/*
581 * Declare some common oids.
582 */
583extern struct sysctl_oid_list sysctl__children;
584SYSCTL_DECL(_kern);
585SYSCTL_DECL(_sysctl);
586SYSCTL_DECL(_vm);
587SYSCTL_DECL(_vfs);
588SYSCTL_DECL(_net);
589SYSCTL_DECL(_debug);
590SYSCTL_DECL(_debug_sizeof);
591SYSCTL_DECL(_hw);
592SYSCTL_DECL(_machdep);
593SYSCTL_DECL(_user);
594SYSCTL_DECL(_compat);
595
596extern char     machine[];
597extern char     osrelease[];
598extern char     ostype[];
599extern char     kern_ident[];
600
601/* Dynamic oid handling */
602struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
603                struct sysctl_oid_list *parent, int nbr, const char *name,
604                int kind, void *arg1, int arg2,
605                int (*handler) (SYSCTL_HANDLER_ARGS),
606                const char *fmt, const char *descr);
607int     sysctl_move_oid(struct sysctl_oid *oidp,
608                struct sysctl_oid_list *parent);
609int     sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
610int     sysctl_ctx_init(struct sysctl_ctx_list *clist);
611int     sysctl_ctx_free(struct sysctl_ctx_list *clist);
612struct  sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
613                struct sysctl_oid *oidp);
614struct  sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
615                struct sysctl_oid *oidp);
616int     sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
617                struct sysctl_oid *oidp);
618
619int     kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old,
620                      size_t *oldlenp, void *new, size_t newlen,
621                      size_t *retval);
622int     kernel_sysctlbyname(struct thread *td, char *name,
623                void *old, size_t *oldlenp, void *new, size_t newlen,
624                size_t *retval);
625int     userland_sysctl(struct thread *td, int *name, u_int namelen, void *old,
626                        size_t *oldlenp, int inkernel, void *new, size_t newlen,
627                        size_t *retval);
628int     sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
629                        int *nindx, struct sysctl_req *req);
630int     sysctl_wire_old_buffer(struct sysctl_req *req, size_t len);
631
632#else   /* !_KERNEL */
633#include <rtems/bsd/sys/cdefs.h>
634
635__BEGIN_DECLS
636int     sysctl(int *, u_int, void *, size_t *, void *, size_t);
637int     sysctlbyname(const char *, void *, size_t *, void *, size_t);
638int     sysctlnametomib(const char *, int *, size_t *);
639__END_DECLS
640#endif  /* _KERNEL */
641
642#endif  /* !_SYS_SYSCTL_H_ */
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