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MOXA linux-2.6.x / linux-2.6.9-uc0 from sdlinux-moxaart.tgz
[linux-2.6.9-moxart.git] / include / linux / sysctl.h
blob8db31f8d17ffd5036621fd324e919d801d5cf6b7
1 /*
2 * sysctl.h: General linux system control interface
3 *
4 * Begun 24 March 1995, Stephen Tweedie
5 *
6 ****************************************************************
7 ****************************************************************
8 **
9 ** The values in this file are exported to user space via
10 ** the sysctl() binary interface. However this interface
11 ** is unstable and deprecated and will be removed in the future.
12 ** For a stable interface use /proc/sys.
13 **
14 ****************************************************************
15 ****************************************************************
16 */
17
18 #ifndef _LINUX_SYSCTL_H
19 #define _LINUX_SYSCTL_H
20
21 #include <linux/kernel.h>
22 #include <linux/types.h>
23 #include <linux/list.h>
24 #include <linux/compiler.h>
25
26 struct file;
27
28 #define CTL_MAXNAME 10 /* how many path components do we allow in a
29 call to sysctl? In other words, what is
30 the largest acceptable value for the nlen
31 member of a struct __sysctl_args to have? */
32
33 struct __sysctl_args {
34 int __user *name;
35 int nlen;
36 void __user *oldval;
37 size_t __user *oldlenp;
38 void __user *newval;
39 size_t newlen;
40 unsigned long __unused[4];
41 };
42
43 /* Define sysctl names first */
44
45 /* Top-level names: */
46
47 /* For internal pattern-matching use only: */
48 #ifdef __KERNEL__
49 #define CTL_ANY -1 /* Matches any name */
50 #define CTL_NONE 0
51 #endif
52
53 enum
54 {
55 CTL_KERN=1, /* General kernel info and control */
56 CTL_VM=2, /* VM management */
57 CTL_NET=3, /* Networking */
58 CTL_PROC=4, /* Process info */
59 CTL_FS=5, /* Filesystems */
60 CTL_DEBUG=6, /* Debugging */
61 CTL_DEV=7, /* Devices */
62 CTL_BUS=8, /* Busses */
63 CTL_ABI=9, /* Binary emulation */
64 CTL_CPU=10 /* CPU stuff (speed scaling, etc) */
65 };
66
67 /* CTL_BUS names: */
68 enum
69 {
70 CTL_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 KERN_IEEE_EMULATION_WARNINGS=50, /* int: unimplemented ieee instructions */
121 KERN_S390_USER_DEBUG_LOGGING=51, /* int: dumps of user faults */
122 KERN_CORE_USES_PID=52, /* int: use core or core.%pid */
123 KERN_TAINTED=53, /* int: various kernel tainted flags */
124 KERN_CADPID=54, /* int: PID of the process to notify on CAD */
125 KERN_PIDMAX=55, /* int: PID # limit */
126 KERN_CORE_PATTERN=56, /* string: pattern for core-file names */
127 KERN_PANIC_ON_OOPS=57, /* int: whether we will panic on an oops */
128 KERN_HPPA_PWRSW=58, /* int: hppa soft-power enable */
129 KERN_HPPA_UNALIGNED=59, /* int: hppa unaligned-trap enable */
130 KERN_PRINTK_RATELIMIT=60, /* int: tune printk ratelimiting */
131 KERN_PRINTK_RATELIMIT_BURST=61, /* int: tune printk ratelimiting */
132 KERN_PTY=62, /* dir: pty driver */
133 KERN_NGROUPS_MAX=63, /* int: NGROUPS_MAX */
134 KERN_SPARC_SCONS_PWROFF=64, /* int: serial console power-off halt */
135 KERN_HZ_TIMER=65, /* int: hz timer on or off */
136 KERN_UNKNOWN_NMI_PANIC=66, /* int: unknown nmi panic flag */
137 };
138
139
140 /* CTL_VM names: */
141 enum
142 {
143 VM_UNUSED1=1, /* was: struct: Set vm swapping control */
144 VM_UNUSED2=2, /* was; int: Linear or sqrt() swapout for hogs */
145 VM_UNUSED3=3, /* was: struct: Set free page thresholds */
146 VM_UNUSED4=4, /* Spare */
147 VM_OVERCOMMIT_MEMORY=5, /* Turn off the virtual memory safety limit */
148 VM_UNUSED5=6, /* was: struct: Set buffer memory thresholds */
149 VM_UNUSED7=7, /* was: struct: Set cache memory thresholds */
150 VM_UNUSED8=8, /* was: struct: Control kswapd behaviour */
151 VM_UNUSED9=9, /* was: struct: Set page table cache parameters */
152 VM_PAGE_CLUSTER=10, /* int: set number of pages to swap together */
153 VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */
154 VM_DIRTY_RATIO=12, /* dirty_ratio */
155 VM_DIRTY_WB_CS=13, /* dirty_writeback_centisecs */
156 VM_DIRTY_EXPIRE_CS=14, /* dirty_expire_centisecs */
157 VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */
158 VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */
159 VM_PAGEBUF=17, /* struct: Control pagebuf parameters */
160 VM_HUGETLB_PAGES=18, /* int: Number of available Huge Pages */
161 VM_SWAPPINESS=19, /* Tendency to steal mapped memory */
162 VM_LOWER_ZONE_PROTECTION=20,/* Amount of protection of lower zones */
163 VM_MIN_FREE_KBYTES=21, /* Minimum free kilobytes to maintain */
164 VM_MAX_MAP_COUNT=22, /* int: Maximum number of mmaps/address-space */
165 VM_LAPTOP_MODE=23, /* vm laptop mode */
166 VM_BLOCK_DUMP=24, /* block dump mode */
167 VM_HUGETLB_GROUP=25, /* permitted hugetlb group */
168 VM_VFS_CACHE_PRESSURE=26, /* dcache/icache reclaim pressure */
169 VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */
170 };
171
172
173 /* CTL_NET names: */
174 enum
175 {
176 NET_CORE=1,
177 NET_ETHER=2,
178 NET_802=3,
179 NET_UNIX=4,
180 NET_IPV4=5,
181 NET_IPX=6,
182 NET_ATALK=7,
183 NET_NETROM=8,
184 NET_AX25=9,
185 NET_BRIDGE=10,
186 NET_ROSE=11,
187 NET_IPV6=12,
188 NET_X25=13,
189 NET_TR=14,
190 NET_DECNET=15,
191 NET_ECONET=16,
192 NET_SCTP=17,
193 };
194
195 /* /proc/sys/kernel/random */
196 enum
197 {
198 RANDOM_POOLSIZE=1,
199 RANDOM_ENTROPY_COUNT=2,
200 RANDOM_READ_THRESH=3,
201 RANDOM_WRITE_THRESH=4,
202 RANDOM_BOOT_ID=5,
203 RANDOM_UUID=6
204 };
205
206 /* /proc/sys/kernel/pty */
207 enum
208 {
209 PTY_MAX=1,
210 PTY_NR=2
211 };
212
213 /* /proc/sys/bus/isa */
214 enum
215 {
216 BUS_ISA_MEM_BASE=1,
217 BUS_ISA_PORT_BASE=2,
218 BUS_ISA_PORT_SHIFT=3
219 };
220
221 /* /proc/sys/net/core */
222 enum
223 {
224 NET_CORE_WMEM_MAX=1,
225 NET_CORE_RMEM_MAX=2,
226 NET_CORE_WMEM_DEFAULT=3,
227 NET_CORE_RMEM_DEFAULT=4,
228 /* was NET_CORE_DESTROY_DELAY */
229 NET_CORE_MAX_BACKLOG=6,
230 NET_CORE_FASTROUTE=7,
231 NET_CORE_MSG_COST=8,
232 NET_CORE_MSG_BURST=9,
233 NET_CORE_OPTMEM_MAX=10,
234 NET_CORE_HOT_LIST_LENGTH=11,
235 NET_CORE_DIVERT_VERSION=12,
236 NET_CORE_NO_CONG_THRESH=13,
237 NET_CORE_NO_CONG=14,
238 NET_CORE_LO_CONG=15,
239 NET_CORE_MOD_CONG=16,
240 NET_CORE_DEV_WEIGHT=17,
241 NET_CORE_SOMAXCONN=18,
242 };
243
244 /* /proc/sys/net/ethernet */
245
246 /* /proc/sys/net/802 */
247
248 /* /proc/sys/net/unix */
249
250 enum
251 {
252 NET_UNIX_DESTROY_DELAY=1,
253 NET_UNIX_DELETE_DELAY=2,
254 NET_UNIX_MAX_DGRAM_QLEN=3,
255 };
256
257 /* /proc/sys/net/ipv4 */
258 enum
259 {
260 /* v2.0 compatibile variables */
261 NET_IPV4_FORWARD=8,
262 NET_IPV4_DYNADDR=9,
263
264 NET_IPV4_CONF=16,
265 NET_IPV4_NEIGH=17,
266 NET_IPV4_ROUTE=18,
267 NET_IPV4_FIB_HASH=19,
268 NET_IPV4_NETFILTER=20,
269
270 NET_IPV4_TCP_TIMESTAMPS=33,
271 NET_IPV4_TCP_WINDOW_SCALING=34,
272 NET_IPV4_TCP_SACK=35,
273 NET_IPV4_TCP_RETRANS_COLLAPSE=36,
274 NET_IPV4_DEFAULT_TTL=37,
275 NET_IPV4_AUTOCONFIG=38,
276 NET_IPV4_NO_PMTU_DISC=39,
277 NET_IPV4_TCP_SYN_RETRIES=40,
278 NET_IPV4_IPFRAG_HIGH_THRESH=41,
279 NET_IPV4_IPFRAG_LOW_THRESH=42,
280 NET_IPV4_IPFRAG_TIME=43,
281 NET_IPV4_TCP_MAX_KA_PROBES=44,
282 NET_IPV4_TCP_KEEPALIVE_TIME=45,
283 NET_IPV4_TCP_KEEPALIVE_PROBES=46,
284 NET_IPV4_TCP_RETRIES1=47,
285 NET_IPV4_TCP_RETRIES2=48,
286 NET_IPV4_TCP_FIN_TIMEOUT=49,
287 NET_IPV4_IP_MASQ_DEBUG=50,
288 NET_TCP_SYNCOOKIES=51,
289 NET_TCP_STDURG=52,
290 NET_TCP_RFC1337=53,
291 NET_TCP_SYN_TAILDROP=54,
292 NET_TCP_MAX_SYN_BACKLOG=55,
293 NET_IPV4_LOCAL_PORT_RANGE=56,
294 NET_IPV4_ICMP_ECHO_IGNORE_ALL=57,
295 NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS=58,
296 NET_IPV4_ICMP_SOURCEQUENCH_RATE=59,
297 NET_IPV4_ICMP_DESTUNREACH_RATE=60,
298 NET_IPV4_ICMP_TIMEEXCEED_RATE=61,
299 NET_IPV4_ICMP_PARAMPROB_RATE=62,
300 NET_IPV4_ICMP_ECHOREPLY_RATE=63,
301 NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES=64,
302 NET_IPV4_IGMP_MAX_MEMBERSHIPS=65,
303 NET_TCP_TW_RECYCLE=66,
304 NET_IPV4_ALWAYS_DEFRAG=67,
305 NET_IPV4_TCP_KEEPALIVE_INTVL=68,
306 NET_IPV4_INET_PEER_THRESHOLD=69,
307 NET_IPV4_INET_PEER_MINTTL=70,
308 NET_IPV4_INET_PEER_MAXTTL=71,
309 NET_IPV4_INET_PEER_GC_MINTIME=72,
310 NET_IPV4_INET_PEER_GC_MAXTIME=73,
311 NET_TCP_ORPHAN_RETRIES=74,
312 NET_TCP_ABORT_ON_OVERFLOW=75,
313 NET_TCP_SYNACK_RETRIES=76,
314 NET_TCP_MAX_ORPHANS=77,
315 NET_TCP_MAX_TW_BUCKETS=78,
316 NET_TCP_FACK=79,
317 NET_TCP_REORDERING=80,
318 NET_TCP_ECN=81,
319 NET_TCP_DSACK=82,
320 NET_TCP_MEM=83,
321 NET_TCP_WMEM=84,
322 NET_TCP_RMEM=85,
323 NET_TCP_APP_WIN=86,
324 NET_TCP_ADV_WIN_SCALE=87,
325 NET_IPV4_NONLOCAL_BIND=88,
326 NET_IPV4_ICMP_RATELIMIT=89,
327 NET_IPV4_ICMP_RATEMASK=90,
328 NET_TCP_TW_REUSE=91,
329 NET_TCP_FRTO=92,
330 NET_TCP_LOW_LATENCY=93,
331 NET_IPV4_IPFRAG_SECRET_INTERVAL=94,
332 NET_TCP_WESTWOOD=95,
333 NET_IPV4_IGMP_MAX_MSF=96,
334 NET_TCP_NO_METRICS_SAVE=97,
335 NET_TCP_VEGAS=98,
336 NET_TCP_VEGAS_ALPHA=99,
337 NET_TCP_VEGAS_BETA=100,
338 NET_TCP_VEGAS_GAMMA=101,
339 NET_TCP_BIC=102,
340 NET_TCP_BIC_FAST_CONVERGENCE=103,
341 NET_TCP_BIC_LOW_WINDOW=104,
342 NET_TCP_DEFAULT_WIN_SCALE=105,
343 NET_TCP_MODERATE_RCVBUF=106,
344 NET_TCP_TSO_WIN_DIVISOR=107,
345 };
346
347 enum {
348 NET_IPV4_ROUTE_FLUSH=1,
349 NET_IPV4_ROUTE_MIN_DELAY=2,
350 NET_IPV4_ROUTE_MAX_DELAY=3,
351 NET_IPV4_ROUTE_GC_THRESH=4,
352 NET_IPV4_ROUTE_MAX_SIZE=5,
353 NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
354 NET_IPV4_ROUTE_GC_TIMEOUT=7,
355 NET_IPV4_ROUTE_GC_INTERVAL=8,
356 NET_IPV4_ROUTE_REDIRECT_LOAD=9,
357 NET_IPV4_ROUTE_REDIRECT_NUMBER=10,
358 NET_IPV4_ROUTE_REDIRECT_SILENCE=11,
359 NET_IPV4_ROUTE_ERROR_COST=12,
360 NET_IPV4_ROUTE_ERROR_BURST=13,
361 NET_IPV4_ROUTE_GC_ELASTICITY=14,
362 NET_IPV4_ROUTE_MTU_EXPIRES=15,
363 NET_IPV4_ROUTE_MIN_PMTU=16,
364 NET_IPV4_ROUTE_MIN_ADVMSS=17,
365 NET_IPV4_ROUTE_SECRET_INTERVAL=18,
366 };
367
368 enum
369 {
370 NET_PROTO_CONF_ALL=-2,
371 NET_PROTO_CONF_DEFAULT=-3
372
373 /* And device ifindices ... */
374 };
375
376 enum
377 {
378 NET_IPV4_CONF_FORWARDING=1,
379 NET_IPV4_CONF_MC_FORWARDING=2,
380 NET_IPV4_CONF_PROXY_ARP=3,
381 NET_IPV4_CONF_ACCEPT_REDIRECTS=4,
382 NET_IPV4_CONF_SECURE_REDIRECTS=5,
383 NET_IPV4_CONF_SEND_REDIRECTS=6,
384 NET_IPV4_CONF_SHARED_MEDIA=7,
385 NET_IPV4_CONF_RP_FILTER=8,
386 NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE=9,
387 NET_IPV4_CONF_BOOTP_RELAY=10,
388 NET_IPV4_CONF_LOG_MARTIANS=11,
389 NET_IPV4_CONF_TAG=12,
390 NET_IPV4_CONF_ARPFILTER=13,
391 NET_IPV4_CONF_MEDIUM_ID=14,
392 NET_IPV4_CONF_NOXFRM=15,
393 NET_IPV4_CONF_NOPOLICY=16,
394 NET_IPV4_CONF_FORCE_IGMP_VERSION=17,
395 NET_IPV4_CONF_ARP_ANNOUNCE=18,
396 NET_IPV4_CONF_ARP_IGNORE=19,
397 };
398
399 /* /proc/sys/net/ipv4/netfilter */
400 enum
401 {
402 NET_IPV4_NF_CONNTRACK_MAX=1,
403 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
404 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
405 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
406 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
407 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
408 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
409 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
410 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
411 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT=10,
412 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
413 NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT=12,
414 NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT=13,
415 NET_IPV4_NF_CONNTRACK_BUCKETS=14,
416 NET_IPV4_NF_CONNTRACK_LOG_INVALID=15,
417 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
418 NET_IPV4_NF_CONNTRACK_TCP_LOOSE=17,
419 NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL=18,
420 NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS=19,
421 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
422 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
423 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
424 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
425 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
426 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
427 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
428 NET_IPV4_NF_CONNTRACK_COUNT=27,
429 };
430
431 /* /proc/sys/net/ipv6 */
432 enum {
433 NET_IPV6_CONF=16,
434 NET_IPV6_NEIGH=17,
435 NET_IPV6_ROUTE=18,
436 NET_IPV6_ICMP=19,
437 NET_IPV6_BINDV6ONLY=20,
438 NET_IPV6_IP6FRAG_HIGH_THRESH=21,
439 NET_IPV6_IP6FRAG_LOW_THRESH=22,
440 NET_IPV6_IP6FRAG_TIME=23,
441 NET_IPV6_IP6FRAG_SECRET_INTERVAL=24,
442 NET_IPV6_MLD_MAX_MSF=25,
443 };
444
445 enum {
446 NET_IPV6_ROUTE_FLUSH=1,
447 NET_IPV6_ROUTE_GC_THRESH=2,
448 NET_IPV6_ROUTE_MAX_SIZE=3,
449 NET_IPV6_ROUTE_GC_MIN_INTERVAL=4,
450 NET_IPV6_ROUTE_GC_TIMEOUT=5,
451 NET_IPV6_ROUTE_GC_INTERVAL=6,
452 NET_IPV6_ROUTE_GC_ELASTICITY=7,
453 NET_IPV6_ROUTE_MTU_EXPIRES=8,
454 NET_IPV6_ROUTE_MIN_ADVMSS=9
455 };
456
457 enum {
458 NET_IPV6_FORWARDING=1,
459 NET_IPV6_HOP_LIMIT=2,
460 NET_IPV6_MTU=3,
461 NET_IPV6_ACCEPT_RA=4,
462 NET_IPV6_ACCEPT_REDIRECTS=5,
463 NET_IPV6_AUTOCONF=6,
464 NET_IPV6_DAD_TRANSMITS=7,
465 NET_IPV6_RTR_SOLICITS=8,
466 NET_IPV6_RTR_SOLICIT_INTERVAL=9,
467 NET_IPV6_RTR_SOLICIT_DELAY=10,
468 NET_IPV6_USE_TEMPADDR=11,
469 NET_IPV6_TEMP_VALID_LFT=12,
470 NET_IPV6_TEMP_PREFERED_LFT=13,
471 NET_IPV6_REGEN_MAX_RETRY=14,
472 NET_IPV6_MAX_DESYNC_FACTOR=15,
473 NET_IPV6_MAX_ADDRESSES=16,
474 NET_IPV6_FORCE_MLD_VERSION=17
475 };
476
477 /* /proc/sys/net/ipv6/icmp */
478 enum {
479 NET_IPV6_ICMP_RATELIMIT=1
480 };
481
482 /* /proc/sys/net/<protocol>/neigh/<dev> */
483 enum {
484 NET_NEIGH_MCAST_SOLICIT=1,
485 NET_NEIGH_UCAST_SOLICIT=2,
486 NET_NEIGH_APP_SOLICIT=3,
487 NET_NEIGH_RETRANS_TIME=4,
488 NET_NEIGH_REACHABLE_TIME=5,
489 NET_NEIGH_DELAY_PROBE_TIME=6,
490 NET_NEIGH_GC_STALE_TIME=7,
491 NET_NEIGH_UNRES_QLEN=8,
492 NET_NEIGH_PROXY_QLEN=9,
493 NET_NEIGH_ANYCAST_DELAY=10,
494 NET_NEIGH_PROXY_DELAY=11,
495 NET_NEIGH_LOCKTIME=12,
496 NET_NEIGH_GC_INTERVAL=13,
497 NET_NEIGH_GC_THRESH1=14,
498 NET_NEIGH_GC_THRESH2=15,
499 NET_NEIGH_GC_THRESH3=16
500 };
501
502 /* /proc/sys/net/ipx */
503 enum {
504 NET_IPX_PPROP_BROADCASTING=1,
505 NET_IPX_FORWARDING=2
506 };
507
508
509 /* /proc/sys/net/appletalk */
510 enum {
511 NET_ATALK_AARP_EXPIRY_TIME=1,
512 NET_ATALK_AARP_TICK_TIME=2,
513 NET_ATALK_AARP_RETRANSMIT_LIMIT=3,
514 NET_ATALK_AARP_RESOLVE_TIME=4
515 };
516
517
518 /* /proc/sys/net/netrom */
519 enum {
520 NET_NETROM_DEFAULT_PATH_QUALITY=1,
521 NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2,
522 NET_NETROM_NETWORK_TTL_INITIALISER=3,
523 NET_NETROM_TRANSPORT_TIMEOUT=4,
524 NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5,
525 NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6,
526 NET_NETROM_TRANSPORT_BUSY_DELAY=7,
527 NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8,
528 NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9,
529 NET_NETROM_ROUTING_CONTROL=10,
530 NET_NETROM_LINK_FAILS_COUNT=11
531 };
532
533 /* /proc/sys/net/ax25 */
534 enum {
535 NET_AX25_IP_DEFAULT_MODE=1,
536 NET_AX25_DEFAULT_MODE=2,
537 NET_AX25_BACKOFF_TYPE=3,
538 NET_AX25_CONNECT_MODE=4,
539 NET_AX25_STANDARD_WINDOW=5,
540 NET_AX25_EXTENDED_WINDOW=6,
541 NET_AX25_T1_TIMEOUT=7,
542 NET_AX25_T2_TIMEOUT=8,
543 NET_AX25_T3_TIMEOUT=9,
544 NET_AX25_IDLE_TIMEOUT=10,
545 NET_AX25_N2=11,
546 NET_AX25_PACLEN=12,
547 NET_AX25_PROTOCOL=13,
548 NET_AX25_DAMA_SLAVE_TIMEOUT=14
549 };
550
551 /* /proc/sys/net/rose */
552 enum {
553 NET_ROSE_RESTART_REQUEST_TIMEOUT=1,
554 NET_ROSE_CALL_REQUEST_TIMEOUT=2,
555 NET_ROSE_RESET_REQUEST_TIMEOUT=3,
556 NET_ROSE_CLEAR_REQUEST_TIMEOUT=4,
557 NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5,
558 NET_ROSE_ROUTING_CONTROL=6,
559 NET_ROSE_LINK_FAIL_TIMEOUT=7,
560 NET_ROSE_MAX_VCS=8,
561 NET_ROSE_WINDOW_SIZE=9,
562 NET_ROSE_NO_ACTIVITY_TIMEOUT=10
563 };
564
565 /* /proc/sys/net/x25 */
566 enum {
567 NET_X25_RESTART_REQUEST_TIMEOUT=1,
568 NET_X25_CALL_REQUEST_TIMEOUT=2,
569 NET_X25_RESET_REQUEST_TIMEOUT=3,
570 NET_X25_CLEAR_REQUEST_TIMEOUT=4,
571 NET_X25_ACK_HOLD_BACK_TIMEOUT=5
572 };
573
574 /* /proc/sys/net/token-ring */
575 enum
576 {
577 NET_TR_RIF_TIMEOUT=1
578 };
579
580 /* /proc/sys/net/decnet/ */
581 enum {
582 NET_DECNET_NODE_TYPE = 1,
583 NET_DECNET_NODE_ADDRESS = 2,
584 NET_DECNET_NODE_NAME = 3,
585 NET_DECNET_DEFAULT_DEVICE = 4,
586 NET_DECNET_TIME_WAIT = 5,
587 NET_DECNET_DN_COUNT = 6,
588 NET_DECNET_DI_COUNT = 7,
589 NET_DECNET_DR_COUNT = 8,
590 NET_DECNET_DST_GC_INTERVAL = 9,
591 NET_DECNET_CONF = 10,
592 NET_DECNET_NO_FC_MAX_CWND = 11,
593 NET_DECNET_DEBUG_LEVEL = 255
594 };
595
596 /* /proc/sys/net/decnet/conf/<dev> */
597 enum {
598 NET_DECNET_CONF_LOOPBACK = -2,
599 NET_DECNET_CONF_DDCMP = -3,
600 NET_DECNET_CONF_PPP = -4,
601 NET_DECNET_CONF_X25 = -5,
602 NET_DECNET_CONF_GRE = -6,
603 NET_DECNET_CONF_ETHER = -7
604
605 /* ... and ifindex of devices */
606 };
607
608 /* /proc/sys/net/decnet/conf/<dev>/ */
609 enum {
610 NET_DECNET_CONF_DEV_PRIORITY = 1,
611 NET_DECNET_CONF_DEV_T1 = 2,
612 NET_DECNET_CONF_DEV_T2 = 3,
613 NET_DECNET_CONF_DEV_T3 = 4,
614 NET_DECNET_CONF_DEV_FORWARDING = 5,
615 NET_DECNET_CONF_DEV_BLKSIZE = 6,
616 NET_DECNET_CONF_DEV_STATE = 7
617 };
618
619 /* /proc/sys/net/sctp */
620 enum {
621 NET_SCTP_RTO_INITIAL = 1,
622 NET_SCTP_RTO_MIN = 2,
623 NET_SCTP_RTO_MAX = 3,
624 NET_SCTP_RTO_ALPHA = 4,
625 NET_SCTP_RTO_BETA = 5,
626 NET_SCTP_VALID_COOKIE_LIFE = 6,
627 NET_SCTP_ASSOCIATION_MAX_RETRANS = 7,
628 NET_SCTP_PATH_MAX_RETRANS = 8,
629 NET_SCTP_MAX_INIT_RETRANSMITS = 9,
630 NET_SCTP_HB_INTERVAL = 10,
631 NET_SCTP_PRESERVE_ENABLE = 11,
632 NET_SCTP_MAX_BURST = 12,
633 NET_SCTP_ADDIP_ENABLE = 13,
634 NET_SCTP_PRSCTP_ENABLE = 14,
635 };
636
637 /* /proc/sys/net/bridge */
638 enum {
639 NET_BRIDGE_NF_CALL_ARPTABLES = 1,
640 NET_BRIDGE_NF_CALL_IPTABLES = 2,
641 NET_BRIDGE_NF_CALL_IP6TABLES = 3,
642 NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4,
643 };
644
645 /* CTL_PROC names: */
646
647 /* CTL_FS names: */
648 enum
649 {
650 FS_NRINODE=1, /* int:current number of allocated inodes */
651 FS_STATINODE=2,
652 FS_MAXINODE=3, /* int:maximum number of inodes that can be allocated */
653 FS_NRDQUOT=4, /* int:current number of allocated dquots */
654 FS_MAXDQUOT=5, /* int:maximum number of dquots that can be allocated */
655 FS_NRFILE=6, /* int:current number of allocated filedescriptors */
656 FS_MAXFILE=7, /* int:maximum number of filedescriptors that can be allocated */
657 FS_DENTRY=8,
658 FS_NRSUPER=9, /* int:current number of allocated super_blocks */
659 FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */
660 FS_OVERFLOWUID=11, /* int: overflow UID */
661 FS_OVERFLOWGID=12, /* int: overflow GID */
662 FS_LEASES=13, /* int: leases enabled */
663 FS_DIR_NOTIFY=14, /* int: directory notification enabled */
664 FS_LEASE_TIME=15, /* int: maximum time to wait for a lease break */
665 FS_DQSTATS=16, /* disc quota usage statistics */
666 FS_XFS=17, /* struct: control xfs parameters */
667 FS_AIO_NR=18, /* current system-wide number of aio requests */
668 FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */
669 };
670
671 /* /proc/sys/fs/quota/ */
672 enum {
673 FS_DQ_LOOKUPS = 1,
674 FS_DQ_DROPS = 2,
675 FS_DQ_READS = 3,
676 FS_DQ_WRITES = 4,
677 FS_DQ_CACHE_HITS = 5,
678 FS_DQ_ALLOCATED = 6,
679 FS_DQ_FREE = 7,
680 FS_DQ_SYNCS = 8,
681 };
682
683 /* CTL_DEBUG names: */
684
685 /* CTL_DEV names: */
686 enum {
687 DEV_CDROM=1,
688 DEV_HWMON=2,
689 DEV_PARPORT=3,
690 DEV_RAID=4,
691 DEV_MAC_HID=5,
692 DEV_SCSI=6,
693 };
694
695 /* /proc/sys/dev/cdrom */
696 enum {
697 DEV_CDROM_INFO=1,
698 DEV_CDROM_AUTOCLOSE=2,
699 DEV_CDROM_AUTOEJECT=3,
700 DEV_CDROM_DEBUG=4,
701 DEV_CDROM_LOCK=5,
702 DEV_CDROM_CHECK_MEDIA=6
703 };
704
705 /* /proc/sys/dev/parport */
706 enum {
707 DEV_PARPORT_DEFAULT=-3
708 };
709
710 /* /proc/sys/dev/raid */
711 enum {
712 DEV_RAID_SPEED_LIMIT_MIN=1,
713 DEV_RAID_SPEED_LIMIT_MAX=2
714 };
715
716 /* /proc/sys/dev/parport/default */
717 enum {
718 DEV_PARPORT_DEFAULT_TIMESLICE=1,
719 DEV_PARPORT_DEFAULT_SPINTIME=2
720 };
721
722 /* /proc/sys/dev/parport/parport n */
723 enum {
724 DEV_PARPORT_SPINTIME=1,
725 DEV_PARPORT_BASE_ADDR=2,
726 DEV_PARPORT_IRQ=3,
727 DEV_PARPORT_DMA=4,
728 DEV_PARPORT_MODES=5,
729 DEV_PARPORT_DEVICES=6,
730 DEV_PARPORT_AUTOPROBE=16
731 };
732
733 /* /proc/sys/dev/parport/parport n/devices/ */
734 enum {
735 DEV_PARPORT_DEVICES_ACTIVE=-3,
736 };
737
738 /* /proc/sys/dev/parport/parport n/devices/device n */
739 enum {
740 DEV_PARPORT_DEVICE_TIMESLICE=1,
741 };
742
743 /* /proc/sys/dev/mac_hid */
744 enum {
745 DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1,
746 DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2,
747 DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3,
748 DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4,
749 DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5,
750 DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6
751 };
752
753 /* /proc/sys/dev/scsi */
754 enum {
755 DEV_SCSI_LOGGING_LEVEL=1,
756 };
757
758 /* /proc/sys/abi */
759 enum
760 {
761 ABI_DEFHANDLER_COFF=1, /* default handler for coff binaries */
762 ABI_DEFHANDLER_ELF=2, /* default handler for ELF binaries */
763 ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */
764 ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */
765 ABI_TRACE=5, /* tracing flags */
766 ABI_FAKE_UTSNAME=6, /* fake target utsname information */
767 };
768
769 #ifdef __KERNEL__
770
771 extern void sysctl_init(void);
772
773 typedef struct ctl_table ctl_table;
774
775 typedef int ctl_handler (ctl_table *table, int __user *name, int nlen,
776 void __user *oldval, size_t __user *oldlenp,
777 void __user *newval, size_t newlen,
778 void **context);
779
780 typedef int proc_handler (ctl_table *ctl, int write, struct file * filp,
781 void __user *buffer, size_t *lenp, loff_t *ppos);
782
783 extern int proc_dostring(ctl_table *, int, struct file *,
784 void __user *, size_t *, loff_t *);
785 extern int proc_dointvec(ctl_table *, int, struct file *,
786 void __user *, size_t *, loff_t *);
787 extern int proc_dointvec_bset(ctl_table *, int, struct file *,
788 void __user *, size_t *, loff_t *);
789 extern int proc_dointvec_minmax(ctl_table *, int, struct file *,
790 void __user *, size_t *, loff_t *);
791 extern int proc_dointvec_jiffies(ctl_table *, int, struct file *,
792 void __user *, size_t *, loff_t *);
793 extern int proc_dointvec_userhz_jiffies(ctl_table *, int, struct file *,
794 void __user *, size_t *, loff_t *);
795 extern int proc_doulongvec_minmax(ctl_table *, int, struct file *,
796 void __user *, size_t *, loff_t *);
797 extern int proc_doulongvec_ms_jiffies_minmax(ctl_table *table, int,
798 struct file *, void __user *, size_t *, loff_t *);
799
800 extern int do_sysctl (int __user *name, int nlen,
801 void __user *oldval, size_t __user *oldlenp,
802 void __user *newval, size_t newlen);
803
804 extern int do_sysctl_strategy (ctl_table *table,
805 int __user *name, int nlen,
806 void __user *oldval, size_t __user *oldlenp,
807 void __user *newval, size_t newlen, void ** context);
808
809 extern ctl_handler sysctl_string;
810 extern ctl_handler sysctl_intvec;
811 extern ctl_handler sysctl_jiffies;
812
813
814 /*
815 * Register a set of sysctl names by calling register_sysctl_table
816 * with an initialised array of ctl_table's. An entry with zero
817 * ctl_name terminates the table. table->de will be set up by the
818 * registration and need not be initialised in advance.
819 *
820 * sysctl names can be mirrored automatically under /proc/sys. The
821 * procname supplied controls /proc naming.
822 *
823 * The table's mode will be honoured both for sys_sysctl(2) and
824 * proc-fs access.
825 *
826 * Leaf nodes in the sysctl tree will be represented by a single file
827 * under /proc; non-leaf nodes will be represented by directories. A
828 * null procname disables /proc mirroring at this node.
829 *
830 * sysctl(2) can automatically manage read and write requests through
831 * the sysctl table. The data and maxlen fields of the ctl_table
832 * struct enable minimal validation of the values being written to be
833 * performed, and the mode field allows minimal authentication.
834 *
835 * More sophisticated management can be enabled by the provision of a
836 * strategy routine with the table entry. This will be called before
837 * any automatic read or write of the data is performed.
838 *
839 * The strategy routine may return:
840 * <0: Error occurred (error is passed to user process)
841 * 0: OK - proceed with automatic read or write.
842 * >0: OK - read or write has been done by the strategy routine, so
843 * return immediately.
844 *
845 * There must be a proc_handler routine for any terminal nodes
846 * mirrored under /proc/sys (non-terminals are handled by a built-in
847 * directory handler). Several default handlers are available to
848 * cover common cases.
849 */
850
851 /* A sysctl table is an array of struct ctl_table: */
852 struct ctl_table
853 {
854 int ctl_name; /* Binary ID */
855 const char *procname; /* Text ID for /proc/sys, or zero */
856 void *data;
857 int maxlen;
858 mode_t mode;
859 ctl_table *child;
860 proc_handler *proc_handler; /* Callback for text formatting */
861 ctl_handler *strategy; /* Callback function for all r/w */
862 struct proc_dir_entry *de; /* /proc control block */
863 void *extra1;
864 void *extra2;
865 };
866
867 /* struct ctl_table_header is used to maintain dynamic lists of
868 ctl_table trees. */
869 struct ctl_table_header
870 {
871 ctl_table *ctl_table;
872 struct list_head ctl_entry;
873 };
874
875 struct ctl_table_header * register_sysctl_table(ctl_table * table,
876 int insert_at_head);
877 void unregister_sysctl_table(struct ctl_table_header * table);
878
879 #else /* __KERNEL__ */
880
881 #endif /* __KERNEL__ */
882
883 #endif /* _LINUX_SYSCTL_H */
MOXA 2.6.9 from sdlinux-moxaart.tgz