1 /*
2 * sysctl.h: General linux system control interface
3 *
4 * Begun 24 March 1995, Stephen Tweedie
5 *
6 ****************************************************************
7 ****************************************************************
8 **
9 ** WARNING:
10 ** The values in this file are exported to user space via
11 ** the sysctl() binary interface. Do *NOT* change the
12 ** numbering of any existing values here, and do not change
13 ** any numbers within any one set of values. If you have
14 ** to redefine an existing interface, use a new number for it.
15 ** The kernel will then return ENOTDIR to any application using
16 ** the old binary interface.
17 **
18 ** --sct
19 **
20 ****************************************************************
21 ****************************************************************
22 */
23
24 #ifndef _LINUX_SYSCTL_H
25 #define _LINUX_SYSCTL_H
26
27 #include <linux/kernel.h>
28 #include <linux/types.h>
29 #include <linux/list.h>
30
31 struct file;
32
33 #define CTL_MAXNAME 10
34
35 struct __sysctl_args {
36 int *name;
37 int nlen;
38 void *oldval;
39 size_t *oldlenp;
40 void *newval;
41 size_t newlen;
42 unsigned long __unused[4];
43 };
44
45 /* Define sysctl names first */
46
47 /* Top-level names: */
48
49 /* For internal pattern-matching use only: */
50 #ifdef __KERNEL__
51 #define CTL_ANY -1 /* Matches any name */
52 #define CTL_NONE 0
53 #endif
54
55 enum
56 {
57 CTL_KERN=1, /* General kernel info and control */
58 CTL_VM=2, /* VM management */
59 CTL_NET=3, /* Networking */
60 CTL_PROC=4, /* Process info */
61 CTL_FS=5, /* Filesystems */
62 CTL_DEBUG=6, /* Debugging */
63 CTL_DEV=7, /* Devices */
64 CTL_BUS=8 /* Buses */
65 };
66
67 /* CTL_BUS names: */
68 enum
69 {
70 BUS_ISA=1 /* ISA */
71 };
72
73 /* CTL_KERN names: */
74 enum
75 {
76 KERN_OSTYPE=1, /* string: system version */
77 KERN_OSRELEASE=2, /* string: system release */
78 KERN_OSREV=3, /* int: system revision */
79 KERN_VERSION=4, /* string: compile time info */
80 KERN_SECUREMASK=5, /* struct: maximum rights mask */
81 KERN_PROF=6, /* table: profiling information */
82 KERN_NODENAME=7,
83 KERN_DOMAINNAME=8,
84
85 KERN_CAP_BSET=14, /* int: capability bounding set */
86 KERN_PANIC=15, /* int: panic timeout */
87 KERN_REALROOTDEV=16, /* real root device to mount after initrd */
88
89 KERN_SPARC_REBOOT=21, /* reboot command on Sparc */
90 KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */
91 KERN_PRINTK=23, /* struct: control printk logging parameters */
92 KERN_NAMETRANS=24, /* Name translation */
93 KERN_PPC_HTABRECLAIM=25, /* turn htab reclaimation on/off on PPC */
94 KERN_PPC_ZEROPAGED=26, /* turn idle page zeroing on/off on PPC */
95 KERN_PPC_POWERSAVE_NAP=27, /* use nap mode for power saving */
96 KERN_MODPROBE=28,
97 KERN_SG_BIG_BUFF=29,
98 KERN_ACCT=30, /* BSD process accounting parameters */
99 KERN_PPC_L2CR=31, /* l2cr register on PPC */
100
101 KERN_RTSIGNR=32, /* Number of rt sigs queued */
102 KERN_RTSIGMAX=33, /* Max queuable */
103
104 KERN_SHMMAX=34, /* long: Maximum shared memory segment */
105 KERN_MSGMAX=35, /* int: Maximum size of a messege */
106 KERN_MSGMNB=36, /* int: Maximum message queue size */
107 KERN_MSGPOOL=37, /* int: Maximum system message pool size */
108 KERN_SYSRQ=38, /* int: Sysreq enable */
109 KERN_MAX_THREADS=39, /* int: Maximum nr of threads in the system */
110 KERN_RANDOM=40, /* Random driver */
111 KERN_SHMALL=41, /* int: Maximum size of shared memory */
112 KERN_MSGMNI=42, /* int: msg queue identifiers */
113 KERN_SEM=43, /* struct: sysv semaphore limits */
114 KERN_SPARC_STOP_A=44, /* int: Sparc Stop-A enable */
115 KERN_SHMMNI=45, /* int: shm array identifiers */
116 KERN_OVERFLOWUID=46, /* int: overflow UID */
117 KERN_OVERFLOWGID=47, /* int: overflow GID */
118 KERN_SHMPATH=48, /* string: path to shm fs */
119 KERN_HOTPLUG=49, /* string: path to hotplug policy agent */
120 };
121
122
123 /* CTL_VM names: */
124 enum
125 {
126 VM_SWAPCTL=1, /* struct: Set vm swapping control */
127 VM_SWAPOUT=2, /* int: Linear or sqrt() swapout for hogs */
128 VM_FREEPG=3, /* struct: Set free page thresholds */
129 VM_BDFLUSH=4, /* struct: Control buffer cache flushing */
130 VM_OVERCOMMIT_MEMORY=5, /* Turn off the virtual memory safety limit */
131 VM_BUFFERMEM=6, /* struct: Set buffer memory thresholds */
132 VM_PAGECACHE=7, /* struct: Set cache memory thresholds */
133 VM_PAGERDAEMON=8, /* struct: Control kswapd behaviour */
134 VM_PGT_CACHE=9, /* struct: Set page table cache parameters */
135 VM_PAGE_CLUSTER=10 /* int: set number of pages to swap together */
136 };
137
138
139 /* CTL_NET names: */
140 enum
141 {
142 NET_CORE=1,
143 NET_ETHER=2,
144 NET_802=3,
145 NET_UNIX=4,
146 NET_IPV4=5,
147 NET_IPX=6,
148 NET_ATALK=7,
149 NET_NETROM=8,
150 NET_AX25=9,
151 NET_BRIDGE=10,
152 NET_ROSE=11,
153 NET_IPV6=12,
154 NET_X25=13,
155 NET_TR=14,
156 NET_DECNET=15,
157 NET_ECONET=16,
158 NET_KHTTPD=17
159 };
160
161 /* /proc/sys/kernel/random */
162 enum
163 {
164 RANDOM_POOLSIZE=1,
165 RANDOM_ENTROPY_COUNT=2,
166 RANDOM_READ_THRESH=3,
167 RANDOM_WRITE_THRESH=4,
168 RANDOM_BOOT_ID=5,
169 RANDOM_UUID=6
170 };
171
172 /* /proc/sys/bus/isa */
173 enum
174 {
175 BUS_ISA_MEM_BASE=1,
176 BUS_ISA_PORT_BASE=2,
177 BUS_ISA_PORT_SHIFT=3
178 };
179
180 /* /proc/sys/net/core */
181 enum
182 {
183 NET_CORE_WMEM_MAX=1,
184 NET_CORE_RMEM_MAX=2,
185 NET_CORE_WMEM_DEFAULT=3,
186 NET_CORE_RMEM_DEFAULT=4,
187 /* was NET_CORE_DESTROY_DELAY */
188 NET_CORE_MAX_BACKLOG=6,
189 NET_CORE_FASTROUTE=7,
190 NET_CORE_MSG_COST=8,
191 NET_CORE_MSG_BURST=9,
192 NET_CORE_OPTMEM_MAX=10,
193 NET_CORE_HOT_LIST_LENGTH=11,
194 NET_CORE_DIVERT_VERSION=12,
195 NET_CORE_NO_CONG_THRESH=13,
196 NET_CORE_NO_CONG=14,
197 NET_CORE_LO_CONG=15,
198 NET_CORE_MOD_CONG=16
199 };
200
201 /* /proc/sys/net/ethernet */
202
203 /* /proc/sys/net/802 */
204
205 /* /proc/sys/net/unix */
206
207 enum
208 {
209 NET_UNIX_DESTROY_DELAY=1,
210 NET_UNIX_DELETE_DELAY=2,
211 NET_UNIX_MAX_DGRAM_QLEN=3,
212 };
213
214 /* /proc/sys/net/ipv4 */
215 enum
216 {
217 /* v2.0 compatibile variables */
218 NET_IPV4_FORWARD=8,
219 NET_IPV4_DYNADDR=9,
220
221 NET_IPV4_CONF=16,
222 NET_IPV4_NEIGH=17,
223 NET_IPV4_ROUTE=18,
224 NET_IPV4_FIB_HASH=19,
225
226 NET_IPV4_TCP_TIMESTAMPS=33,
227 NET_IPV4_TCP_WINDOW_SCALING=34,
228 NET_IPV4_TCP_SACK=35,
229 NET_IPV4_TCP_RETRANS_COLLAPSE=36,
230 NET_IPV4_DEFAULT_TTL=37,
231 NET_IPV4_AUTOCONFIG=38,
232 NET_IPV4_NO_PMTU_DISC=39,
233 NET_IPV4_TCP_SYN_RETRIES=40,
234 NET_IPV4_IPFRAG_HIGH_THRESH=41,
235 NET_IPV4_IPFRAG_LOW_THRESH=42,
236 NET_IPV4_IPFRAG_TIME=43,
237 NET_IPV4_TCP_MAX_KA_PROBES=44,
238 NET_IPV4_TCP_KEEPALIVE_TIME=45,
239 NET_IPV4_TCP_KEEPALIVE_PROBES=46,
240 NET_IPV4_TCP_RETRIES1=47,
241 NET_IPV4_TCP_RETRIES2=48,
242 NET_IPV4_TCP_FIN_TIMEOUT=49,
243 NET_IPV4_IP_MASQ_DEBUG=50,
244 NET_TCP_SYNCOOKIES=51,
245 NET_TCP_STDURG=52,
246 NET_TCP_RFC1337=53,
247 NET_TCP_SYN_TAILDROP=54,
248 NET_TCP_MAX_SYN_BACKLOG=55,
249 NET_IPV4_LOCAL_PORT_RANGE=56,
250 NET_IPV4_ICMP_ECHO_IGNORE_ALL=57,
251 NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS=58,
252 NET_IPV4_ICMP_SOURCEQUENCH_RATE=59,
253 NET_IPV4_ICMP_DESTUNREACH_RATE=60,
254 NET_IPV4_ICMP_TIMEEXCEED_RATE=61,
255 NET_IPV4_ICMP_PARAMPROB_RATE=62,
256 NET_IPV4_ICMP_ECHOREPLY_RATE=63,
257 NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES=64,
258 NET_IPV4_IGMP_MAX_MEMBERSHIPS=65,
259 NET_TCP_TW_RECYCLE=66,
260 NET_IPV4_ALWAYS_DEFRAG=67,
261 NET_IPV4_TCP_KEEPALIVE_INTVL=68,
262 NET_IPV4_INET_PEER_THRESHOLD=69,
263 NET_IPV4_INET_PEER_MINTTL=70,
264 NET_IPV4_INET_PEER_MAXTTL=71,
265 NET_IPV4_INET_PEER_GC_MINTIME=72,
266 NET_IPV4_INET_PEER_GC_MAXTIME=73,
267 NET_TCP_ORPHAN_RETRIES=74,
268 NET_TCP_ABORT_ON_OVERFLOW=75,
269 NET_TCP_SYNACK_RETRIES=76,
270 NET_TCP_MAX_ORPHANS=77,
271 NET_TCP_MAX_TW_BUCKETS=78,
272 NET_TCP_FACK=79,
273 NET_TCP_REORDERING=80,
274 NET_TCP_ECN=81,
275 NET_TCP_DSACK=82,
276 NET_TCP_MEM=83,
277 NET_TCP_WMEM=84,
278 NET_TCP_RMEM=85,
279 NET_TCP_APP_WIN=86,
280 NET_TCP_ADV_WIN_SCALE=87,
281 NET_IPV4_NONLOCAL_BIND=88,
282 };
283
284 enum {
285 NET_IPV4_ROUTE_FLUSH=1,
286 NET_IPV4_ROUTE_MIN_DELAY=2,
287 NET_IPV4_ROUTE_MAX_DELAY=3,
288 NET_IPV4_ROUTE_GC_THRESH=4,
289 NET_IPV4_ROUTE_MAX_SIZE=5,
290 NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
291 NET_IPV4_ROUTE_GC_TIMEOUT=7,
292 NET_IPV4_ROUTE_GC_INTERVAL=8,
293 NET_IPV4_ROUTE_REDIRECT_LOAD=9,
294 NET_IPV4_ROUTE_REDIRECT_NUMBER=10,
295 NET_IPV4_ROUTE_REDIRECT_SILENCE=11,
296 NET_IPV4_ROUTE_ERROR_COST=12,
297 NET_IPV4_ROUTE_ERROR_BURST=13,
298 NET_IPV4_ROUTE_GC_ELASTICITY=14,
299 NET_IPV4_ROUTE_MTU_EXPIRES=15,
300 NET_IPV4_ROUTE_MIN_PMTU=16,
301 NET_IPV4_ROUTE_MIN_ADVMSS=17
302 };
303
304 enum
305 {
306 NET_PROTO_CONF_ALL=-2,
307 NET_PROTO_CONF_DEFAULT=-3
308
309 /* And device ifindices ... */
310 };
311
312 enum
313 {
314 NET_IPV4_CONF_FORWARDING=1,
315 NET_IPV4_CONF_MC_FORWARDING=2,
316 NET_IPV4_CONF_PROXY_ARP=3,
317 NET_IPV4_CONF_ACCEPT_REDIRECTS=4,
318 NET_IPV4_CONF_SECURE_REDIRECTS=5,
319 NET_IPV4_CONF_SEND_REDIRECTS=6,
320 NET_IPV4_CONF_SHARED_MEDIA=7,
321 NET_IPV4_CONF_RP_FILTER=8,
322 NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE=9,
323 NET_IPV4_CONF_BOOTP_RELAY=10,
324 NET_IPV4_CONF_LOG_MARTIANS=11,
325 NET_IPV4_CONF_TAG=12
326 };
327
328 /* /proc/sys/net/ipv6 */
329 enum {
330 NET_IPV6_CONF=16,
331 NET_IPV6_NEIGH=17,
332 NET_IPV6_ROUTE=18
333 };
334
335 enum {
336 NET_IPV6_ROUTE_FLUSH=1,
337 NET_IPV6_ROUTE_GC_THRESH=2,
338 NET_IPV6_ROUTE_MAX_SIZE=3,
339 NET_IPV6_ROUTE_GC_MIN_INTERVAL=4,
340 NET_IPV6_ROUTE_GC_TIMEOUT=5,
341 NET_IPV6_ROUTE_GC_INTERVAL=6,
342 NET_IPV6_ROUTE_GC_ELASTICITY=7,
343 NET_IPV6_ROUTE_MTU_EXPIRES=8,
344 NET_IPV6_ROUTE_MIN_ADVMSS=9
345 };
346
347 enum {
348 NET_IPV6_FORWARDING=1,
349 NET_IPV6_HOP_LIMIT=2,
350 NET_IPV6_MTU=3,
351 NET_IPV6_ACCEPT_RA=4,
352 NET_IPV6_ACCEPT_REDIRECTS=5,
353 NET_IPV6_AUTOCONF=6,
354 NET_IPV6_DAD_TRANSMITS=7,
355 NET_IPV6_RTR_SOLICITS=8,
356 NET_IPV6_RTR_SOLICIT_INTERVAL=9,
357 NET_IPV6_RTR_SOLICIT_DELAY=10
358 };
359
360 /* /proc/sys/net/<protocol>/neigh/<dev> */
361 enum {
362 NET_NEIGH_MCAST_SOLICIT=1,
363 NET_NEIGH_UCAST_SOLICIT=2,
364 NET_NEIGH_APP_SOLICIT=3,
365 NET_NEIGH_RETRANS_TIME=4,
366 NET_NEIGH_REACHABLE_TIME=5,
367 NET_NEIGH_DELAY_PROBE_TIME=6,
368 NET_NEIGH_GC_STALE_TIME=7,
369 NET_NEIGH_UNRES_QLEN=8,
370 NET_NEIGH_PROXY_QLEN=9,
371 NET_NEIGH_ANYCAST_DELAY=10,
372 NET_NEIGH_PROXY_DELAY=11,
373 NET_NEIGH_LOCKTIME=12,
374 NET_NEIGH_GC_INTERVAL=13,
375 NET_NEIGH_GC_THRESH1=14,
376 NET_NEIGH_GC_THRESH2=15,
377 NET_NEIGH_GC_THRESH3=16
378 };
379
380 /* /proc/sys/net/ipx */
381
382
383 /* /proc/sys/net/appletalk */
384 enum {
385 NET_ATALK_AARP_EXPIRY_TIME=1,
386 NET_ATALK_AARP_TICK_TIME=2,
387 NET_ATALK_AARP_RETRANSMIT_LIMIT=3,
388 NET_ATALK_AARP_RESOLVE_TIME=4
389 };
390
391
392 /* /proc/sys/net/netrom */
393 enum {
394 NET_NETROM_DEFAULT_PATH_QUALITY=1,
395 NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2,
396 NET_NETROM_NETWORK_TTL_INITIALISER=3,
397 NET_NETROM_TRANSPORT_TIMEOUT=4,
398 NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5,
399 NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6,
400 NET_NETROM_TRANSPORT_BUSY_DELAY=7,
401 NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8,
402 NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9,
403 NET_NETROM_ROUTING_CONTROL=10,
404 NET_NETROM_LINK_FAILS_COUNT=11
405 };
406
407 /* /proc/sys/net/ax25 */
408 enum {
409 NET_AX25_IP_DEFAULT_MODE=1,
410 NET_AX25_DEFAULT_MODE=2,
411 NET_AX25_BACKOFF_TYPE=3,
412 NET_AX25_CONNECT_MODE=4,
413 NET_AX25_STANDARD_WINDOW=5,
414 NET_AX25_EXTENDED_WINDOW=6,
415 NET_AX25_T1_TIMEOUT=7,
416 NET_AX25_T2_TIMEOUT=8,
417 NET_AX25_T3_TIMEOUT=9,
418 NET_AX25_IDLE_TIMEOUT=10,
419 NET_AX25_N2=11,
420 NET_AX25_PACLEN=12,
421 NET_AX25_PROTOCOL=13,
422 NET_AX25_DAMA_SLAVE_TIMEOUT=14
423 };
424
425 /* /proc/sys/net/rose */
426 enum {
427 NET_ROSE_RESTART_REQUEST_TIMEOUT=1,
428 NET_ROSE_CALL_REQUEST_TIMEOUT=2,
429 NET_ROSE_RESET_REQUEST_TIMEOUT=3,
430 NET_ROSE_CLEAR_REQUEST_TIMEOUT=4,
431 NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5,
432 NET_ROSE_ROUTING_CONTROL=6,
433 NET_ROSE_LINK_FAIL_TIMEOUT=7,
434 NET_ROSE_MAX_VCS=8,
435 NET_ROSE_WINDOW_SIZE=9,
436 NET_ROSE_NO_ACTIVITY_TIMEOUT=10
437 };
438
439 /* /proc/sys/net/x25 */
440 enum {
441 NET_X25_RESTART_REQUEST_TIMEOUT=1,
442 NET_X25_CALL_REQUEST_TIMEOUT=2,
443 NET_X25_RESET_REQUEST_TIMEOUT=3,
444 NET_X25_CLEAR_REQUEST_TIMEOUT=4,
445 NET_X25_ACK_HOLD_BACK_TIMEOUT=5
446 };
447
448 /* /proc/sys/net/token-ring */
449 enum
450 {
451 NET_TR_RIF_TIMEOUT=1
452 };
453
454 /* /proc/sys/net/decnet/ */
455 enum {
456 NET_DECNET_NODE_TYPE = 1,
457 NET_DECNET_NODE_ADDRESS = 2,
458 NET_DECNET_NODE_NAME = 3,
459 NET_DECNET_DEFAULT_DEVICE = 4,
460 NET_DECNET_TIME_WAIT = 5,
461 NET_DECNET_DN_COUNT = 6,
462 NET_DECNET_DI_COUNT = 7,
463 NET_DECNET_DR_COUNT = 8,
464 NET_DECNET_DST_GC_INTERVAL = 9,
465 NET_DECNET_CONF = 10,
466 NET_DECNET_DEBUG_LEVEL = 255
467 };
468
469 /* /proc/sys/net/khttpd/ */
470 enum {
471 NET_KHTTPD_DOCROOT = 1,
472 NET_KHTTPD_START = 2,
473 NET_KHTTPD_STOP = 3,
474 NET_KHTTPD_UNLOAD = 4,
475 NET_KHTTPD_CLIENTPORT = 5,
476 NET_KHTTPD_PERMREQ = 6,
477 NET_KHTTPD_PERMFORBID = 7,
478 NET_KHTTPD_LOGGING = 8,
479 NET_KHTTPD_SERVERPORT = 9,
480 NET_KHTTPD_DYNAMICSTRING= 10,
481 NET_KHTTPD_SLOPPYMIME = 11,
482 NET_KHTTPD_THREADS = 12,
483 NET_KHTTPD_MAXCONNECT = 13
484 };
485
486 /* /proc/sys/net/decnet/conf/<dev> */
487 enum {
488 NET_DECNET_CONF_LOOPBACK = -2,
489 NET_DECNET_CONF_DDCMP = -3,
490 NET_DECNET_CONF_PPP = -4,
491 NET_DECNET_CONF_X25 = -5,
492 NET_DECNET_CONF_GRE = -6,
493 NET_DECNET_CONF_ETHER = -7
494
495 /* ... and ifindex of devices */
496 };
497
498 /* /proc/sys/net/decnet/conf/<dev>/ */
499 enum {
500 NET_DECNET_CONF_DEV_PRIORITY = 1,
501 NET_DECNET_CONF_DEV_T1 = 2,
502 NET_DECNET_CONF_DEV_T2 = 3,
503 NET_DECNET_CONF_DEV_T3 = 4,
504 NET_DECNET_CONF_DEV_FORWARDING = 5,
505 NET_DECNET_CONF_DEV_BLKSIZE = 6,
506 NET_DECNET_CONF_DEV_STATE = 7
507 };
508
509 /* CTL_PROC names: */
510
511 /* CTL_FS names: */
512 enum
513 {
514 FS_NRINODE=1, /* int:current number of allocated inodes */
515 FS_STATINODE=2,
516 FS_MAXINODE=3, /* int:maximum number of inodes that can be allocated */
517 FS_NRDQUOT=4, /* int:current number of allocated dquots */
518 FS_MAXDQUOT=5, /* int:maximum number of dquots that can be allocated */
519 FS_NRFILE=6, /* int:current number of allocated filedescriptors */
520 FS_MAXFILE=7, /* int:maximum number of filedescriptors that can be allocated */
521 FS_DENTRY=8,
522 FS_NRSUPER=9, /* int:current number of allocated super_blocks */
523 FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */
524 FS_OVERFLOWUID=11, /* int: overflow UID */
525 FS_OVERFLOWGID=12, /* int: overflow GID */
526 FS_LEASES=13, /* int: leases enabled */
527 FS_DIR_NOTIFY=14, /* int: directory notification enabled */
528 FS_LEASE_TIME=15, /* int: maximum time to wait for a lease break */
529 };
530
531 /* CTL_DEBUG names: */
532
533 /* CTL_DEV names: */
534 enum {
535 DEV_CDROM=1,
536 DEV_HWMON=2,
537 DEV_PARPORT=3,
538 DEV_RAID=4,
539 DEV_MAC_HID=5
540 };
541
542 /* /proc/sys/dev/cdrom */
543 enum {
544 DEV_CDROM_INFO=1,
545 DEV_CDROM_AUTOCLOSE=2,
546 DEV_CDROM_AUTOEJECT=3,
547 DEV_CDROM_DEBUG=4,
548 DEV_CDROM_LOCK=5,
549 DEV_CDROM_CHECK_MEDIA=6
550 };
551
552 /* /proc/sys/dev/parport */
553 enum {
554 DEV_PARPORT_DEFAULT=-3
555 };
556
557 /* /proc/sys/dev/raid */
558 enum {
559 DEV_RAID_SPEED_LIMIT_MIN=1,
560 DEV_RAID_SPEED_LIMIT_MAX=2
561 };
562
563 /* /proc/sys/dev/parport/default */
564 enum {
565 DEV_PARPORT_DEFAULT_TIMESLICE=1,
566 DEV_PARPORT_DEFAULT_SPINTIME=2
567 };
568
569 /* /proc/sys/dev/parport/parport n */
570 enum {
571 DEV_PARPORT_SPINTIME=1,
572 DEV_PARPORT_BASE_ADDR=2,
573 DEV_PARPORT_IRQ=3,
574 DEV_PARPORT_DMA=4,
575 DEV_PARPORT_MODES=5,
576 DEV_PARPORT_DEVICES=6,
577 DEV_PARPORT_AUTOPROBE=16
578 };
579
580 /* /proc/sys/dev/parport/parport n/devices/ */
581 enum {
582 DEV_PARPORT_DEVICES_ACTIVE=-3,
583 };
584
585 /* /proc/sys/dev/parport/parport n/devices/device n */
586 enum {
587 DEV_PARPORT_DEVICE_TIMESLICE=1,
588 };
589
590 /* /proc/sys/dev/mac_hid */
591 enum {
592 DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1,
593 DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2,
594 DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3,
595 DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4,
596 DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5,
597 DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6
598 };
599
600 #ifdef __KERNEL__
601
602 extern asmlinkage long sys_sysctl(struct __sysctl_args *);
603 extern void sysctl_init(void);
604
605 typedef struct ctl_table ctl_table;
606
607 typedef int ctl_handler (ctl_table *table, int *name, int nlen,
608 void *oldval, size_t *oldlenp,
609 void *newval, size_t newlen,
610 void **context);
611
612 typedef int proc_handler (ctl_table *ctl, int write, struct file * filp,
613 void *buffer, size_t *lenp);
614
615 extern int proc_dostring(ctl_table *, int, struct file *,
616 void *, size_t *);
617 extern int proc_dointvec(ctl_table *, int, struct file *,
618 void *, size_t *);
619 extern int proc_dointvec_bset(ctl_table *, int, struct file *,
620 void *, size_t *);
621 extern int proc_dointvec_minmax(ctl_table *, int, struct file *,
622 void *, size_t *);
623 extern int proc_dointvec_jiffies(ctl_table *, int, struct file *,
624 void *, size_t *);
625 extern int proc_doulongvec_minmax(ctl_table *, int, struct file *,
626 void *, size_t *);
627 extern int proc_doulongvec_ms_jiffies_minmax(ctl_table *table, int,
628 struct file *, void *, size_t *);
629
630 extern int do_sysctl (int *name, int nlen,
631 void *oldval, size_t *oldlenp,
632 void *newval, size_t newlen);
633
634 extern int do_sysctl_strategy (ctl_table *table,
635 int *name, int nlen,
636 void *oldval, size_t *oldlenp,
637 void *newval, size_t newlen, void ** context);
638
639 extern ctl_handler sysctl_string;
640 extern ctl_handler sysctl_intvec;
641 extern ctl_handler sysctl_jiffies;
642
643
644 /*
645 * Register a set of sysctl names by calling register_sysctl_table
646 * with an initialised array of ctl_table's. An entry with zero
647 * ctl_name terminates the table. table->de will be set up by the
648 * registration and need not be initialised in advance.
649 *
650 * sysctl names can be mirrored automatically under /proc/sys. The
651 * procname supplied controls /proc naming.
652 *
653 * The table's mode will be honoured both for sys_sysctl(2) and
654 * proc-fs access.
655 *
656 * Leaf nodes in the sysctl tree will be represented by a single file
657 * under /proc; non-leaf nodes will be represented by directories. A
658 * null procname disables /proc mirroring at this node.
659 *
660 * sysctl(2) can automatically manage read and write requests through
661 * the sysctl table. The data and maxlen fields of the ctl_table
662 * struct enable minimal validation of the values being written to be
663 * performed, and the mode field allows minimal authentication.
664 *
665 * More sophisticated management can be enabled by the provision of a
666 * strategy routine with the table entry. This will be called before
667 * any automatic read or write of the data is performed.
668 *
669 * The strategy routine may return:
670 * <0: Error occurred (error is passed to user process)
671 * 0: OK - proceed with automatic read or write.
672 * >0: OK - read or write has been done by the strategy routine, so
673 * return immediately.
674 *
675 * There must be a proc_handler routine for any terminal nodes
676 * mirrored under /proc/sys (non-terminals are handled by a built-in
677 * directory handler). Several default handlers are available to
678 * cover common cases.
679 */
680
681 /* A sysctl table is an array of struct ctl_table: */
682 struct ctl_table
683 {
684 int ctl_name; /* Binary ID */
685 const char *procname; /* Text ID for /proc/sys, or zero */
686 void *data;
687 int maxlen;
688 mode_t mode;
689 ctl_table *child;
690 proc_handler *proc_handler; /* Callback for text formatting */
691 ctl_handler *strategy; /* Callback function for all r/w */
692 struct proc_dir_entry *de; /* /proc control block */
693 void *extra1;
694 void *extra2;
695 };
696
697 /* struct ctl_table_header is used to maintain dynamic lists of
698 ctl_table trees. */
699 struct ctl_table_header
700 {
701 ctl_table *ctl_table;
702 struct list_head ctl_entry;
703 };
704
705 struct ctl_table_header * register_sysctl_table(ctl_table * table,
706 int insert_at_head);
707 void unregister_sysctl_table(struct ctl_table_header * table);
708
709 #else /* __KERNEL__ */
710
711 #endif /* __KERNEL__ */
712
713 #endif /* _LINUX_SYSCTL_H */
714
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