Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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
26struct file;
27struct completion;
28
29#define CTL_MAXNAME 10 /* how many path components do we allow in a
30 call to sysctl? In other words, what is
31 the largest acceptable value for the nlen
32 member of a struct __sysctl_args to have? */
33
34struct __sysctl_args {
35 int __user *name;
36 int nlen;
37 void __user *oldval;
38 size_t __user *oldlenp;
39 void __user *newval;
40 size_t newlen;
41 unsigned long __unused[4];
42};
43
44/* Define sysctl names first */
45
46/* Top-level names: */
47
48/* For internal pattern-matching use only: */
49#ifdef __KERNEL__
50#define CTL_ANY -1 /* Matches any name */
51#define CTL_NONE 0
52#endif
53
54enum
55{
56 CTL_KERN=1, /* General kernel info and control */
57 CTL_VM=2, /* VM management */
58 CTL_NET=3, /* Networking */
59 CTL_PROC=4, /* Process info */
60 CTL_FS=5, /* Filesystems */
61 CTL_DEBUG=6, /* Debugging */
62 CTL_DEV=7, /* Devices */
63 CTL_BUS=8, /* Busses */
64 CTL_ABI=9, /* Binary emulation */
65 CTL_CPU=10 /* CPU stuff (speed scaling, etc) */
66};
67
68/* CTL_BUS names: */
69enum
70{
71 CTL_BUS_ISA=1 /* ISA */
72};
73
74/* /proc/sys/fs/inotify/ */
75enum
76{
77 INOTIFY_MAX_USER_INSTANCES=1, /* max instances per user */
78 INOTIFY_MAX_USER_WATCHES=2, /* max watches per user */
79 INOTIFY_MAX_QUEUED_EVENTS=3 /* max queued events per instance */
80};
81
82/* CTL_KERN names: */
83enum
84{
85 KERN_OSTYPE=1, /* string: system version */
86 KERN_OSRELEASE=2, /* string: system release */
87 KERN_OSREV=3, /* int: system revision */
88 KERN_VERSION=4, /* string: compile time info */
89 KERN_SECUREMASK=5, /* struct: maximum rights mask */
90 KERN_PROF=6, /* table: profiling information */
91 KERN_NODENAME=7,
92 KERN_DOMAINNAME=8,
93
94 KERN_CAP_BSET=14, /* int: capability bounding set */
95 KERN_PANIC=15, /* int: panic timeout */
96 KERN_REALROOTDEV=16, /* real root device to mount after initrd */
97
98 KERN_SPARC_REBOOT=21, /* reboot command on Sparc */
99 KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */
100 KERN_PRINTK=23, /* struct: control printk logging parameters */
101 KERN_NAMETRANS=24, /* Name translation */
102 KERN_PPC_HTABRECLAIM=25, /* turn htab reclaimation on/off on PPC */
103 KERN_PPC_ZEROPAGED=26, /* turn idle page zeroing on/off on PPC */
104 KERN_PPC_POWERSAVE_NAP=27, /* use nap mode for power saving */
105 KERN_MODPROBE=28,
106 KERN_SG_BIG_BUFF=29,
107 KERN_ACCT=30, /* BSD process accounting parameters */
108 KERN_PPC_L2CR=31, /* l2cr register on PPC */
109
110 KERN_RTSIGNR=32, /* Number of rt sigs queued */
111 KERN_RTSIGMAX=33, /* Max queuable */
112
113 KERN_SHMMAX=34, /* long: Maximum shared memory segment */
114 KERN_MSGMAX=35, /* int: Maximum size of a messege */
115 KERN_MSGMNB=36, /* int: Maximum message queue size */
116 KERN_MSGPOOL=37, /* int: Maximum system message pool size */
117 KERN_SYSRQ=38, /* int: Sysreq enable */
118 KERN_MAX_THREADS=39, /* int: Maximum nr of threads in the system */
119 KERN_RANDOM=40, /* Random driver */
120 KERN_SHMALL=41, /* int: Maximum size of shared memory */
121 KERN_MSGMNI=42, /* int: msg queue identifiers */
122 KERN_SEM=43, /* struct: sysv semaphore limits */
123 KERN_SPARC_STOP_A=44, /* int: Sparc Stop-A enable */
124 KERN_SHMMNI=45, /* int: shm array identifiers */
125 KERN_OVERFLOWUID=46, /* int: overflow UID */
126 KERN_OVERFLOWGID=47, /* int: overflow GID */
127 KERN_SHMPATH=48, /* string: path to shm fs */
128 KERN_HOTPLUG=49, /* string: path to hotplug policy agent */
129 KERN_IEEE_EMULATION_WARNINGS=50, /* int: unimplemented ieee instructions */
130 KERN_S390_USER_DEBUG_LOGGING=51, /* int: dumps of user faults */
131 KERN_CORE_USES_PID=52, /* int: use core or core.%pid */
132 KERN_TAINTED=53, /* int: various kernel tainted flags */
133 KERN_CADPID=54, /* int: PID of the process to notify on CAD */
134 KERN_PIDMAX=55, /* int: PID # limit */
135 KERN_CORE_PATTERN=56, /* string: pattern for core-file names */
136 KERN_PANIC_ON_OOPS=57, /* int: whether we will panic on an oops */
137 KERN_HPPA_PWRSW=58, /* int: hppa soft-power enable */
138 KERN_HPPA_UNALIGNED=59, /* int: hppa unaligned-trap enable */
139 KERN_PRINTK_RATELIMIT=60, /* int: tune printk ratelimiting */
140 KERN_PRINTK_RATELIMIT_BURST=61, /* int: tune printk ratelimiting */
141 KERN_PTY=62, /* dir: pty driver */
142 KERN_NGROUPS_MAX=63, /* int: NGROUPS_MAX */
143 KERN_SPARC_SCONS_PWROFF=64, /* int: serial console power-off halt */
144 KERN_HZ_TIMER=65, /* int: hz timer on or off */
145 KERN_UNKNOWN_NMI_PANIC=66, /* int: unknown nmi panic flag */
146 KERN_BOOTLOADER_TYPE=67, /* int: boot loader type */
147 KERN_RANDOMIZE=68, /* int: randomize virtual address space */
148 KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */
149 KERN_SPIN_RETRY=70, /* int: number of spinlock retries */
150};
151
152
153/* CTL_VM names: */
154enum
155{
156 VM_UNUSED1=1, /* was: struct: Set vm swapping control */
157 VM_UNUSED2=2, /* was; int: Linear or sqrt() swapout for hogs */
158 VM_UNUSED3=3, /* was: struct: Set free page thresholds */
159 VM_UNUSED4=4, /* Spare */
160 VM_OVERCOMMIT_MEMORY=5, /* Turn off the virtual memory safety limit */
161 VM_UNUSED5=6, /* was: struct: Set buffer memory thresholds */
162 VM_UNUSED7=7, /* was: struct: Set cache memory thresholds */
163 VM_UNUSED8=8, /* was: struct: Control kswapd behaviour */
164 VM_UNUSED9=9, /* was: struct: Set page table cache parameters */
165 VM_PAGE_CLUSTER=10, /* int: set number of pages to swap together */
166 VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */
167 VM_DIRTY_RATIO=12, /* dirty_ratio */
168 VM_DIRTY_WB_CS=13, /* dirty_writeback_centisecs */
169 VM_DIRTY_EXPIRE_CS=14, /* dirty_expire_centisecs */
170 VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */
171 VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */
172 VM_PAGEBUF=17, /* struct: Control pagebuf parameters */
173 VM_HUGETLB_PAGES=18, /* int: Number of available Huge Pages */
174 VM_SWAPPINESS=19, /* Tendency to steal mapped memory */
175 VM_LOWMEM_RESERVE_RATIO=20,/* reservation ratio for lower memory zones */
176 VM_MIN_FREE_KBYTES=21, /* Minimum free kilobytes to maintain */
177 VM_MAX_MAP_COUNT=22, /* int: Maximum number of mmaps/address-space */
178 VM_LAPTOP_MODE=23, /* vm laptop mode */
179 VM_BLOCK_DUMP=24, /* block dump mode */
180 VM_HUGETLB_GROUP=25, /* permitted hugetlb group */
181 VM_VFS_CACHE_PRESSURE=26, /* dcache/icache reclaim pressure */
182 VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */
183 VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */
184};
185
186
187/* CTL_NET names: */
188enum
189{
190 NET_CORE=1,
191 NET_ETHER=2,
192 NET_802=3,
193 NET_UNIX=4,
194 NET_IPV4=5,
195 NET_IPX=6,
196 NET_ATALK=7,
197 NET_NETROM=8,
198 NET_AX25=9,
199 NET_BRIDGE=10,
200 NET_ROSE=11,
201 NET_IPV6=12,
202 NET_X25=13,
203 NET_TR=14,
204 NET_DECNET=15,
205 NET_ECONET=16,
206 NET_SCTP=17,
207 NET_LLC=18,
208 NET_NETFILTER=19,
209};
210
211/* /proc/sys/kernel/random */
212enum
213{
214 RANDOM_POOLSIZE=1,
215 RANDOM_ENTROPY_COUNT=2,
216 RANDOM_READ_THRESH=3,
217 RANDOM_WRITE_THRESH=4,
218 RANDOM_BOOT_ID=5,
219 RANDOM_UUID=6
220};
221
222/* /proc/sys/kernel/pty */
223enum
224{
225 PTY_MAX=1,
226 PTY_NR=2
227};
228
229/* /proc/sys/bus/isa */
230enum
231{
232 BUS_ISA_MEM_BASE=1,
233 BUS_ISA_PORT_BASE=2,
234 BUS_ISA_PORT_SHIFT=3
235};
236
237/* /proc/sys/net/core */
238enum
239{
240 NET_CORE_WMEM_MAX=1,
241 NET_CORE_RMEM_MAX=2,
242 NET_CORE_WMEM_DEFAULT=3,
243 NET_CORE_RMEM_DEFAULT=4,
244/* was NET_CORE_DESTROY_DELAY */
245 NET_CORE_MAX_BACKLOG=6,
246 NET_CORE_FASTROUTE=7,
247 NET_CORE_MSG_COST=8,
248 NET_CORE_MSG_BURST=9,
249 NET_CORE_OPTMEM_MAX=10,
250 NET_CORE_HOT_LIST_LENGTH=11,
251 NET_CORE_DIVERT_VERSION=12,
252 NET_CORE_NO_CONG_THRESH=13,
253 NET_CORE_NO_CONG=14,
254 NET_CORE_LO_CONG=15,
255 NET_CORE_MOD_CONG=16,
256 NET_CORE_DEV_WEIGHT=17,
257 NET_CORE_SOMAXCONN=18,
258 NET_CORE_BUDGET=19,
259};
260
261/* /proc/sys/net/ethernet */
262
263/* /proc/sys/net/802 */
264
265/* /proc/sys/net/unix */
266
267enum
268{
269 NET_UNIX_DESTROY_DELAY=1,
270 NET_UNIX_DELETE_DELAY=2,
271 NET_UNIX_MAX_DGRAM_QLEN=3,
272};
273
274/* /proc/sys/net/netfilter */
275enum
276{
277 NET_NF_CONNTRACK_MAX=1,
278 NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
279 NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
280 NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
281 NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
282 NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
283 NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
284 NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
285 NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
286 NET_NF_CONNTRACK_UDP_TIMEOUT=10,
287 NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
288 NET_NF_CONNTRACK_ICMP_TIMEOUT=12,
289 NET_NF_CONNTRACK_GENERIC_TIMEOUT=13,
290 NET_NF_CONNTRACK_BUCKETS=14,
291 NET_NF_CONNTRACK_LOG_INVALID=15,
292 NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
293 NET_NF_CONNTRACK_TCP_LOOSE=17,
294 NET_NF_CONNTRACK_TCP_BE_LIBERAL=18,
295 NET_NF_CONNTRACK_TCP_MAX_RETRANS=19,
296 NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
297 NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
298 NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
299 NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
300 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
301 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
302 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
303 NET_NF_CONNTRACK_COUNT=27,
304 NET_NF_CONNTRACK_ICMPV6_TIMEOUT=28,
305 NET_NF_CONNTRACK_FRAG6_TIMEOUT=29,
306 NET_NF_CONNTRACK_FRAG6_LOW_THRESH=30,
307 NET_NF_CONNTRACK_FRAG6_HIGH_THRESH=31,
308};
309
310/* /proc/sys/net/ipv4 */
311enum
312{
313 /* v2.0 compatibile variables */
314 NET_IPV4_FORWARD=8,
315 NET_IPV4_DYNADDR=9,
316
317 NET_IPV4_CONF=16,
318 NET_IPV4_NEIGH=17,
319 NET_IPV4_ROUTE=18,
320 NET_IPV4_FIB_HASH=19,
321 NET_IPV4_NETFILTER=20,
322
323 NET_IPV4_TCP_TIMESTAMPS=33,
324 NET_IPV4_TCP_WINDOW_SCALING=34,
325 NET_IPV4_TCP_SACK=35,
326 NET_IPV4_TCP_RETRANS_COLLAPSE=36,
327 NET_IPV4_DEFAULT_TTL=37,
328 NET_IPV4_AUTOCONFIG=38,
329 NET_IPV4_NO_PMTU_DISC=39,
330 NET_IPV4_TCP_SYN_RETRIES=40,
331 NET_IPV4_IPFRAG_HIGH_THRESH=41,
332 NET_IPV4_IPFRAG_LOW_THRESH=42,
333 NET_IPV4_IPFRAG_TIME=43,
334 NET_IPV4_TCP_MAX_KA_PROBES=44,
335 NET_IPV4_TCP_KEEPALIVE_TIME=45,
336 NET_IPV4_TCP_KEEPALIVE_PROBES=46,
337 NET_IPV4_TCP_RETRIES1=47,
338 NET_IPV4_TCP_RETRIES2=48,
339 NET_IPV4_TCP_FIN_TIMEOUT=49,
340 NET_IPV4_IP_MASQ_DEBUG=50,
341 NET_TCP_SYNCOOKIES=51,
342 NET_TCP_STDURG=52,
343 NET_TCP_RFC1337=53,
344 NET_TCP_SYN_TAILDROP=54,
345 NET_TCP_MAX_SYN_BACKLOG=55,
346 NET_IPV4_LOCAL_PORT_RANGE=56,
347 NET_IPV4_ICMP_ECHO_IGNORE_ALL=57,
348 NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS=58,
349 NET_IPV4_ICMP_SOURCEQUENCH_RATE=59,
350 NET_IPV4_ICMP_DESTUNREACH_RATE=60,
351 NET_IPV4_ICMP_TIMEEXCEED_RATE=61,
352 NET_IPV4_ICMP_PARAMPROB_RATE=62,
353 NET_IPV4_ICMP_ECHOREPLY_RATE=63,
354 NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES=64,
355 NET_IPV4_IGMP_MAX_MEMBERSHIPS=65,
356 NET_TCP_TW_RECYCLE=66,
357 NET_IPV4_ALWAYS_DEFRAG=67,
358 NET_IPV4_TCP_KEEPALIVE_INTVL=68,
359 NET_IPV4_INET_PEER_THRESHOLD=69,
360 NET_IPV4_INET_PEER_MINTTL=70,
361 NET_IPV4_INET_PEER_MAXTTL=71,
362 NET_IPV4_INET_PEER_GC_MINTIME=72,
363 NET_IPV4_INET_PEER_GC_MAXTIME=73,
364 NET_TCP_ORPHAN_RETRIES=74,
365 NET_TCP_ABORT_ON_OVERFLOW=75,
366 NET_TCP_SYNACK_RETRIES=76,
367 NET_TCP_MAX_ORPHANS=77,
368 NET_TCP_MAX_TW_BUCKETS=78,
369 NET_TCP_FACK=79,
370 NET_TCP_REORDERING=80,
371 NET_TCP_ECN=81,
372 NET_TCP_DSACK=82,
373 NET_TCP_MEM=83,
374 NET_TCP_WMEM=84,
375 NET_TCP_RMEM=85,
376 NET_TCP_APP_WIN=86,
377 NET_TCP_ADV_WIN_SCALE=87,
378 NET_IPV4_NONLOCAL_BIND=88,
379 NET_IPV4_ICMP_RATELIMIT=89,
380 NET_IPV4_ICMP_RATEMASK=90,
381 NET_TCP_TW_REUSE=91,
382 NET_TCP_FRTO=92,
383 NET_TCP_LOW_LATENCY=93,
384 NET_IPV4_IPFRAG_SECRET_INTERVAL=94,
385 NET_IPV4_IGMP_MAX_MSF=96,
386 NET_TCP_NO_METRICS_SAVE=97,
387 NET_TCP_DEFAULT_WIN_SCALE=105,
388 NET_TCP_MODERATE_RCVBUF=106,
389 NET_TCP_TSO_WIN_DIVISOR=107,
390 NET_TCP_BIC_BETA=108,
391 NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109,
392 NET_TCP_CONG_CONTROL=110,
393 NET_TCP_ABC=111,
394};
395
396enum {
397 NET_IPV4_ROUTE_FLUSH=1,
398 NET_IPV4_ROUTE_MIN_DELAY=2,
399 NET_IPV4_ROUTE_MAX_DELAY=3,
400 NET_IPV4_ROUTE_GC_THRESH=4,
401 NET_IPV4_ROUTE_MAX_SIZE=5,
402 NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
403 NET_IPV4_ROUTE_GC_TIMEOUT=7,
404 NET_IPV4_ROUTE_GC_INTERVAL=8,
405 NET_IPV4_ROUTE_REDIRECT_LOAD=9,
406 NET_IPV4_ROUTE_REDIRECT_NUMBER=10,
407 NET_IPV4_ROUTE_REDIRECT_SILENCE=11,
408 NET_IPV4_ROUTE_ERROR_COST=12,
409 NET_IPV4_ROUTE_ERROR_BURST=13,
410 NET_IPV4_ROUTE_GC_ELASTICITY=14,
411 NET_IPV4_ROUTE_MTU_EXPIRES=15,
412 NET_IPV4_ROUTE_MIN_PMTU=16,
413 NET_IPV4_ROUTE_MIN_ADVMSS=17,
414 NET_IPV4_ROUTE_SECRET_INTERVAL=18,
415 NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS=19,
416};
417
418enum
419{
420 NET_PROTO_CONF_ALL=-2,
421 NET_PROTO_CONF_DEFAULT=-3
422
423 /* And device ifindices ... */
424};
425
426enum
427{
428 NET_IPV4_CONF_FORWARDING=1,
429 NET_IPV4_CONF_MC_FORWARDING=2,
430 NET_IPV4_CONF_PROXY_ARP=3,
431 NET_IPV4_CONF_ACCEPT_REDIRECTS=4,
432 NET_IPV4_CONF_SECURE_REDIRECTS=5,
433 NET_IPV4_CONF_SEND_REDIRECTS=6,
434 NET_IPV4_CONF_SHARED_MEDIA=7,
435 NET_IPV4_CONF_RP_FILTER=8,
436 NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE=9,
437 NET_IPV4_CONF_BOOTP_RELAY=10,
438 NET_IPV4_CONF_LOG_MARTIANS=11,
439 NET_IPV4_CONF_TAG=12,
440 NET_IPV4_CONF_ARPFILTER=13,
441 NET_IPV4_CONF_MEDIUM_ID=14,
442 NET_IPV4_CONF_NOXFRM=15,
443 NET_IPV4_CONF_NOPOLICY=16,
444 NET_IPV4_CONF_FORCE_IGMP_VERSION=17,
445 NET_IPV4_CONF_ARP_ANNOUNCE=18,
446 NET_IPV4_CONF_ARP_IGNORE=19,
447 NET_IPV4_CONF_PROMOTE_SECONDARIES=20,
448 __NET_IPV4_CONF_MAX
449};
450
451/* /proc/sys/net/ipv4/netfilter */
452enum
453{
454 NET_IPV4_NF_CONNTRACK_MAX=1,
455 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
456 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
457 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
458 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
459 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
460 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
461 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
462 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
463 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT=10,
464 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
465 NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT=12,
466 NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT=13,
467 NET_IPV4_NF_CONNTRACK_BUCKETS=14,
468 NET_IPV4_NF_CONNTRACK_LOG_INVALID=15,
469 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
470 NET_IPV4_NF_CONNTRACK_TCP_LOOSE=17,
471 NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL=18,
472 NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS=19,
473 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
474 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
475 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
476 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
477 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
478 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
479 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
480 NET_IPV4_NF_CONNTRACK_COUNT=27,
481};
482
483/* /proc/sys/net/ipv6 */
484enum {
485 NET_IPV6_CONF=16,
486 NET_IPV6_NEIGH=17,
487 NET_IPV6_ROUTE=18,
488 NET_IPV6_ICMP=19,
489 NET_IPV6_BINDV6ONLY=20,
490 NET_IPV6_IP6FRAG_HIGH_THRESH=21,
491 NET_IPV6_IP6FRAG_LOW_THRESH=22,
492 NET_IPV6_IP6FRAG_TIME=23,
493 NET_IPV6_IP6FRAG_SECRET_INTERVAL=24,
494 NET_IPV6_MLD_MAX_MSF=25,
495};
496
497enum {
498 NET_IPV6_ROUTE_FLUSH=1,
499 NET_IPV6_ROUTE_GC_THRESH=2,
500 NET_IPV6_ROUTE_MAX_SIZE=3,
501 NET_IPV6_ROUTE_GC_MIN_INTERVAL=4,
502 NET_IPV6_ROUTE_GC_TIMEOUT=5,
503 NET_IPV6_ROUTE_GC_INTERVAL=6,
504 NET_IPV6_ROUTE_GC_ELASTICITY=7,
505 NET_IPV6_ROUTE_MTU_EXPIRES=8,
506 NET_IPV6_ROUTE_MIN_ADVMSS=9,
507 NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS=10
508};
509
510enum {
511 NET_IPV6_FORWARDING=1,
512 NET_IPV6_HOP_LIMIT=2,
513 NET_IPV6_MTU=3,
514 NET_IPV6_ACCEPT_RA=4,
515 NET_IPV6_ACCEPT_REDIRECTS=5,
516 NET_IPV6_AUTOCONF=6,
517 NET_IPV6_DAD_TRANSMITS=7,
518 NET_IPV6_RTR_SOLICITS=8,
519 NET_IPV6_RTR_SOLICIT_INTERVAL=9,
520 NET_IPV6_RTR_SOLICIT_DELAY=10,
521 NET_IPV6_USE_TEMPADDR=11,
522 NET_IPV6_TEMP_VALID_LFT=12,
523 NET_IPV6_TEMP_PREFERED_LFT=13,
524 NET_IPV6_REGEN_MAX_RETRY=14,
525 NET_IPV6_MAX_DESYNC_FACTOR=15,
526 NET_IPV6_MAX_ADDRESSES=16,
527 NET_IPV6_FORCE_MLD_VERSION=17,
528 __NET_IPV6_MAX
529};
530
531/* /proc/sys/net/ipv6/icmp */
532enum {
533 NET_IPV6_ICMP_RATELIMIT=1
534};
535
536/* /proc/sys/net/<protocol>/neigh/<dev> */
537enum {
538 NET_NEIGH_MCAST_SOLICIT=1,
539 NET_NEIGH_UCAST_SOLICIT=2,
540 NET_NEIGH_APP_SOLICIT=3,
541 NET_NEIGH_RETRANS_TIME=4,
542 NET_NEIGH_REACHABLE_TIME=5,
543 NET_NEIGH_DELAY_PROBE_TIME=6,
544 NET_NEIGH_GC_STALE_TIME=7,
545 NET_NEIGH_UNRES_QLEN=8,
546 NET_NEIGH_PROXY_QLEN=9,
547 NET_NEIGH_ANYCAST_DELAY=10,
548 NET_NEIGH_PROXY_DELAY=11,
549 NET_NEIGH_LOCKTIME=12,
550 NET_NEIGH_GC_INTERVAL=13,
551 NET_NEIGH_GC_THRESH1=14,
552 NET_NEIGH_GC_THRESH2=15,
553 NET_NEIGH_GC_THRESH3=16,
554 NET_NEIGH_RETRANS_TIME_MS=17,
555 NET_NEIGH_REACHABLE_TIME_MS=18,
556 __NET_NEIGH_MAX
557};
558
559/* /proc/sys/net/ipx */
560enum {
561 NET_IPX_PPROP_BROADCASTING=1,
562 NET_IPX_FORWARDING=2
563};
564
565/* /proc/sys/net/llc */
566enum {
567 NET_LLC2=1,
568 NET_LLC_STATION=2,
569};
570
571/* /proc/sys/net/llc/llc2 */
572enum {
573 NET_LLC2_TIMEOUT=1,
574};
575
576/* /proc/sys/net/llc/station */
577enum {
578 NET_LLC_STATION_ACK_TIMEOUT=1,
579};
580
581/* /proc/sys/net/llc/llc2/timeout */
582enum {
583 NET_LLC2_ACK_TIMEOUT=1,
584 NET_LLC2_P_TIMEOUT=2,
585 NET_LLC2_REJ_TIMEOUT=3,
586 NET_LLC2_BUSY_TIMEOUT=4,
587};
588
589/* /proc/sys/net/appletalk */
590enum {
591 NET_ATALK_AARP_EXPIRY_TIME=1,
592 NET_ATALK_AARP_TICK_TIME=2,
593 NET_ATALK_AARP_RETRANSMIT_LIMIT=3,
594 NET_ATALK_AARP_RESOLVE_TIME=4
595};
596
597
598/* /proc/sys/net/netrom */
599enum {
600 NET_NETROM_DEFAULT_PATH_QUALITY=1,
601 NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2,
602 NET_NETROM_NETWORK_TTL_INITIALISER=3,
603 NET_NETROM_TRANSPORT_TIMEOUT=4,
604 NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5,
605 NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6,
606 NET_NETROM_TRANSPORT_BUSY_DELAY=7,
607 NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8,
608 NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9,
609 NET_NETROM_ROUTING_CONTROL=10,
610 NET_NETROM_LINK_FAILS_COUNT=11,
611 NET_NETROM_RESET=12
612};
613
614/* /proc/sys/net/ax25 */
615enum {
616 NET_AX25_IP_DEFAULT_MODE=1,
617 NET_AX25_DEFAULT_MODE=2,
618 NET_AX25_BACKOFF_TYPE=3,
619 NET_AX25_CONNECT_MODE=4,
620 NET_AX25_STANDARD_WINDOW=5,
621 NET_AX25_EXTENDED_WINDOW=6,
622 NET_AX25_T1_TIMEOUT=7,
623 NET_AX25_T2_TIMEOUT=8,
624 NET_AX25_T3_TIMEOUT=9,
625 NET_AX25_IDLE_TIMEOUT=10,
626 NET_AX25_N2=11,
627 NET_AX25_PACLEN=12,
628 NET_AX25_PROTOCOL=13,
629 NET_AX25_DAMA_SLAVE_TIMEOUT=14
630};
631
632/* /proc/sys/net/rose */
633enum {
634 NET_ROSE_RESTART_REQUEST_TIMEOUT=1,
635 NET_ROSE_CALL_REQUEST_TIMEOUT=2,
636 NET_ROSE_RESET_REQUEST_TIMEOUT=3,
637 NET_ROSE_CLEAR_REQUEST_TIMEOUT=4,
638 NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5,
639 NET_ROSE_ROUTING_CONTROL=6,
640 NET_ROSE_LINK_FAIL_TIMEOUT=7,
641 NET_ROSE_MAX_VCS=8,
642 NET_ROSE_WINDOW_SIZE=9,
643 NET_ROSE_NO_ACTIVITY_TIMEOUT=10
644};
645
646/* /proc/sys/net/x25 */
647enum {
648 NET_X25_RESTART_REQUEST_TIMEOUT=1,
649 NET_X25_CALL_REQUEST_TIMEOUT=2,
650 NET_X25_RESET_REQUEST_TIMEOUT=3,
651 NET_X25_CLEAR_REQUEST_TIMEOUT=4,
652 NET_X25_ACK_HOLD_BACK_TIMEOUT=5
653};
654
655/* /proc/sys/net/token-ring */
656enum
657{
658 NET_TR_RIF_TIMEOUT=1
659};
660
661/* /proc/sys/net/decnet/ */
662enum {
663 NET_DECNET_NODE_TYPE = 1,
664 NET_DECNET_NODE_ADDRESS = 2,
665 NET_DECNET_NODE_NAME = 3,
666 NET_DECNET_DEFAULT_DEVICE = 4,
667 NET_DECNET_TIME_WAIT = 5,
668 NET_DECNET_DN_COUNT = 6,
669 NET_DECNET_DI_COUNT = 7,
670 NET_DECNET_DR_COUNT = 8,
671 NET_DECNET_DST_GC_INTERVAL = 9,
672 NET_DECNET_CONF = 10,
673 NET_DECNET_NO_FC_MAX_CWND = 11,
674 NET_DECNET_DEBUG_LEVEL = 255
675};
676
677/* /proc/sys/net/decnet/conf/<dev> */
678enum {
679 NET_DECNET_CONF_LOOPBACK = -2,
680 NET_DECNET_CONF_DDCMP = -3,
681 NET_DECNET_CONF_PPP = -4,
682 NET_DECNET_CONF_X25 = -5,
683 NET_DECNET_CONF_GRE = -6,
684 NET_DECNET_CONF_ETHER = -7
685
686 /* ... and ifindex of devices */
687};
688
689/* /proc/sys/net/decnet/conf/<dev>/ */
690enum {
691 NET_DECNET_CONF_DEV_PRIORITY = 1,
692 NET_DECNET_CONF_DEV_T1 = 2,
693 NET_DECNET_CONF_DEV_T2 = 3,
694 NET_DECNET_CONF_DEV_T3 = 4,
695 NET_DECNET_CONF_DEV_FORWARDING = 5,
696 NET_DECNET_CONF_DEV_BLKSIZE = 6,
697 NET_DECNET_CONF_DEV_STATE = 7
698};
699
700/* /proc/sys/net/sctp */
701enum {
702 NET_SCTP_RTO_INITIAL = 1,
703 NET_SCTP_RTO_MIN = 2,
704 NET_SCTP_RTO_MAX = 3,
705 NET_SCTP_RTO_ALPHA = 4,
706 NET_SCTP_RTO_BETA = 5,
707 NET_SCTP_VALID_COOKIE_LIFE = 6,
708 NET_SCTP_ASSOCIATION_MAX_RETRANS = 7,
709 NET_SCTP_PATH_MAX_RETRANS = 8,
710 NET_SCTP_MAX_INIT_RETRANSMITS = 9,
711 NET_SCTP_HB_INTERVAL = 10,
712 NET_SCTP_PRESERVE_ENABLE = 11,
713 NET_SCTP_MAX_BURST = 12,
714 NET_SCTP_ADDIP_ENABLE = 13,
715 NET_SCTP_PRSCTP_ENABLE = 14,
716 NET_SCTP_SNDBUF_POLICY = 15,
717 NET_SCTP_SACK_TIMEOUT = 16,
718 NET_SCTP_RCVBUF_POLICY = 17,
719};
720
721/* /proc/sys/net/bridge */
722enum {
723 NET_BRIDGE_NF_CALL_ARPTABLES = 1,
724 NET_BRIDGE_NF_CALL_IPTABLES = 2,
725 NET_BRIDGE_NF_CALL_IP6TABLES = 3,
726 NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4,
727};
728
729/* CTL_PROC names: */
730
731/* CTL_FS names: */
732enum
733{
734 FS_NRINODE=1, /* int:current number of allocated inodes */
735 FS_STATINODE=2,
736 FS_MAXINODE=3, /* int:maximum number of inodes that can be allocated */
737 FS_NRDQUOT=4, /* int:current number of allocated dquots */
738 FS_MAXDQUOT=5, /* int:maximum number of dquots that can be allocated */
739 FS_NRFILE=6, /* int:current number of allocated filedescriptors */
740 FS_MAXFILE=7, /* int:maximum number of filedescriptors that can be allocated */
741 FS_DENTRY=8,
742 FS_NRSUPER=9, /* int:current number of allocated super_blocks */
743 FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */
744 FS_OVERFLOWUID=11, /* int: overflow UID */
745 FS_OVERFLOWGID=12, /* int: overflow GID */
746 FS_LEASES=13, /* int: leases enabled */
747 FS_DIR_NOTIFY=14, /* int: directory notification enabled */
748 FS_LEASE_TIME=15, /* int: maximum time to wait for a lease break */
749 FS_DQSTATS=16, /* disc quota usage statistics and control */
750 FS_XFS=17, /* struct: control xfs parameters */
751 FS_AIO_NR=18, /* current system-wide number of aio requests */
752 FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */
753 FS_INOTIFY=20, /* inotify submenu */
754};
755
756/* /proc/sys/fs/quota/ */
757enum {
758 FS_DQ_LOOKUPS = 1,
759 FS_DQ_DROPS = 2,
760 FS_DQ_READS = 3,
761 FS_DQ_WRITES = 4,
762 FS_DQ_CACHE_HITS = 5,
763 FS_DQ_ALLOCATED = 6,
764 FS_DQ_FREE = 7,
765 FS_DQ_SYNCS = 8,
766 FS_DQ_WARNINGS = 9,
767};
768
769/* CTL_DEBUG names: */
770
771/* CTL_DEV names: */
772enum {
773 DEV_CDROM=1,
774 DEV_HWMON=2,
775 DEV_PARPORT=3,
776 DEV_RAID=4,
777 DEV_MAC_HID=5,
778 DEV_SCSI=6,
779 DEV_IPMI=7,
780};
781
782/* /proc/sys/dev/cdrom */
783enum {
784 DEV_CDROM_INFO=1,
785 DEV_CDROM_AUTOCLOSE=2,
786 DEV_CDROM_AUTOEJECT=3,
787 DEV_CDROM_DEBUG=4,
788 DEV_CDROM_LOCK=5,
789 DEV_CDROM_CHECK_MEDIA=6
790};
791
792/* /proc/sys/dev/parport */
793enum {
794 DEV_PARPORT_DEFAULT=-3
795};
796
797/* /proc/sys/dev/raid */
798enum {
799 DEV_RAID_SPEED_LIMIT_MIN=1,
800 DEV_RAID_SPEED_LIMIT_MAX=2
801};
802
803/* /proc/sys/dev/parport/default */
804enum {
805 DEV_PARPORT_DEFAULT_TIMESLICE=1,
806 DEV_PARPORT_DEFAULT_SPINTIME=2
807};
808
809/* /proc/sys/dev/parport/parport n */
810enum {
811 DEV_PARPORT_SPINTIME=1,
812 DEV_PARPORT_BASE_ADDR=2,
813 DEV_PARPORT_IRQ=3,
814 DEV_PARPORT_DMA=4,
815 DEV_PARPORT_MODES=5,
816 DEV_PARPORT_DEVICES=6,
817 DEV_PARPORT_AUTOPROBE=16
818};
819
820/* /proc/sys/dev/parport/parport n/devices/ */
821enum {
822 DEV_PARPORT_DEVICES_ACTIVE=-3,
823};
824
825/* /proc/sys/dev/parport/parport n/devices/device n */
826enum {
827 DEV_PARPORT_DEVICE_TIMESLICE=1,
828};
829
830/* /proc/sys/dev/mac_hid */
831enum {
832 DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1,
833 DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2,
834 DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3,
835 DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4,
836 DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5,
837 DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6
838};
839
840/* /proc/sys/dev/scsi */
841enum {
842 DEV_SCSI_LOGGING_LEVEL=1,
843};
844
845/* /proc/sys/dev/ipmi */
846enum {
847 DEV_IPMI_POWEROFF_POWERCYCLE=1,
848};
849
850/* /proc/sys/abi */
851enum
852{
853 ABI_DEFHANDLER_COFF=1, /* default handler for coff binaries */
854 ABI_DEFHANDLER_ELF=2, /* default handler for ELF binaries */
855 ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */
856 ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */
857 ABI_TRACE=5, /* tracing flags */
858 ABI_FAKE_UTSNAME=6, /* fake target utsname information */
859};
860
861#ifdef __KERNEL__
862
863extern void sysctl_init(void);
864
865typedef struct ctl_table ctl_table;
866
867typedef int ctl_handler (ctl_table *table, int __user *name, int nlen,
868 void __user *oldval, size_t __user *oldlenp,
869 void __user *newval, size_t newlen,
870 void **context);
871
872typedef int proc_handler (ctl_table *ctl, int write, struct file * filp,
873 void __user *buffer, size_t *lenp, loff_t *ppos);
874
875extern int proc_dostring(ctl_table *, int, struct file *,
876 void __user *, size_t *, loff_t *);
877extern int proc_dointvec(ctl_table *, int, struct file *,
878 void __user *, size_t *, loff_t *);
879extern int proc_dointvec_bset(ctl_table *, int, struct file *,
880 void __user *, size_t *, loff_t *);
881extern int proc_dointvec_minmax(ctl_table *, int, struct file *,
882 void __user *, size_t *, loff_t *);
883extern int proc_dointvec_jiffies(ctl_table *, int, struct file *,
884 void __user *, size_t *, loff_t *);
885extern int proc_dointvec_userhz_jiffies(ctl_table *, int, struct file *,
886 void __user *, size_t *, loff_t *);
887extern int proc_dointvec_ms_jiffies(ctl_table *, int, struct file *,
888 void __user *, size_t *, loff_t *);
889extern int proc_doulongvec_minmax(ctl_table *, int, struct file *,
890 void __user *, size_t *, loff_t *);
891extern int proc_doulongvec_ms_jiffies_minmax(ctl_table *table, int,
892 struct file *, void __user *, size_t *, loff_t *);
893
894extern int do_sysctl (int __user *name, int nlen,
895 void __user *oldval, size_t __user *oldlenp,
896 void __user *newval, size_t newlen);
897
898extern int do_sysctl_strategy (ctl_table *table,
899 int __user *name, int nlen,
900 void __user *oldval, size_t __user *oldlenp,
901 void __user *newval, size_t newlen, void ** context);
902
903extern ctl_handler sysctl_string;
904extern ctl_handler sysctl_intvec;
905extern ctl_handler sysctl_jiffies;
906extern ctl_handler sysctl_ms_jiffies;
907
908
909/*
910 * Register a set of sysctl names by calling register_sysctl_table
911 * with an initialised array of ctl_table's. An entry with zero
912 * ctl_name terminates the table. table->de will be set up by the
913 * registration and need not be initialised in advance.
914 *
915 * sysctl names can be mirrored automatically under /proc/sys. The
916 * procname supplied controls /proc naming.
917 *
918 * The table's mode will be honoured both for sys_sysctl(2) and
919 * proc-fs access.
920 *
921 * Leaf nodes in the sysctl tree will be represented by a single file
922 * under /proc; non-leaf nodes will be represented by directories. A
923 * null procname disables /proc mirroring at this node.
924 *
925 * sysctl(2) can automatically manage read and write requests through
926 * the sysctl table. The data and maxlen fields of the ctl_table
927 * struct enable minimal validation of the values being written to be
928 * performed, and the mode field allows minimal authentication.
929 *
930 * More sophisticated management can be enabled by the provision of a
931 * strategy routine with the table entry. This will be called before
932 * any automatic read or write of the data is performed.
933 *
934 * The strategy routine may return:
935 * <0: Error occurred (error is passed to user process)
936 * 0: OK - proceed with automatic read or write.
937 * >0: OK - read or write has been done by the strategy routine, so
938 * return immediately.
939 *
940 * There must be a proc_handler routine for any terminal nodes
941 * mirrored under /proc/sys (non-terminals are handled by a built-in
942 * directory handler). Several default handlers are available to
943 * cover common cases.
944 */
945
946/* A sysctl table is an array of struct ctl_table: */
947struct ctl_table
948{
949 int ctl_name; /* Binary ID */
950 const char *procname; /* Text ID for /proc/sys, or zero */
951 void *data;
952 int maxlen;
953 mode_t mode;
954 ctl_table *child;
955 proc_handler *proc_handler; /* Callback for text formatting */
956 ctl_handler *strategy; /* Callback function for all r/w */
957 struct proc_dir_entry *de; /* /proc control block */
958 void *extra1;
959 void *extra2;
960};
961
962/* struct ctl_table_header is used to maintain dynamic lists of
963 ctl_table trees. */
964struct ctl_table_header
965{
966 ctl_table *ctl_table;
967 struct list_head ctl_entry;
968 int used;
969 struct completion *unregistering;
970};
971
972struct ctl_table_header * register_sysctl_table(ctl_table * table,
973 int insert_at_head);
974void unregister_sysctl_table(struct ctl_table_header * table);
975
976#else /* __KERNEL__ */
977
978#endif /* __KERNEL__ */
979
980#endif /* _LINUX_SYSCTL_H */