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Merge branch 'for-2.6.38' of git://linux-nfs.org/~bfields/linux
[deliverable/linux.git] / include / linux / sysctl.h
CommitLineData
1da177e4
LT		 1/*
2 * sysctl.h: General linux system control interface
3 *
4 * Begun 24 March 1995, Stephen Tweedie
5 *
6 ****************************************************************
7 ****************************************************************
8 **
7cc13edc 9 ** WARNING:
1da177e4 10 ** The values in this file are exported to user space via
7cc13edc
EB		 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 to
93aec204 14 ** redefine an existing interface, use a new number for it.
7cc13edc
EB		 15 ** The kernel will then return -ENOTDIR to any application using
16 ** the old binary interface.
17 **
1da177e4
LT		 18 ****************************************************************
19 ****************************************************************
20 */
21
22#ifndef _LINUX_SYSCTL_H
23#define _LINUX_SYSCTL_H
24
25#include <linux/kernel.h>
26#include <linux/types.h>
1da177e4 27#include <linux/compiler.h>
dfef6dcd 28#include <linux/rcupdate.h>
1da177e4 29
330d57fb 30struct completion;
1da177e4
LT		 31
32#define CTL_MAXNAME 10 /* how many path components do we allow in a
33 call to sysctl? In other words, what is
34 the largest acceptable value for the nlen
35 member of a struct __sysctl_args to have? */
36
37struct __sysctl_args {
38 int __user *name;
39 int nlen;
40 void __user *oldval;
41 size_t __user *oldlenp;
42 void __user *newval;
43 size_t newlen;
44 unsigned long __unused[4];
45};
46
47/* Define sysctl names first */
48
49/* Top-level names: */
50
1da177e4
LT		 51enum
52{
53 CTL_KERN=1, /* General kernel info and control */
54 CTL_VM=2, /* VM management */
55 CTL_NET=3, /* Networking */
0d0ed42e 56 CTL_PROC=4, /* removal breaks strace(1) compilation */
1da177e4
LT		 57 CTL_FS=5, /* Filesystems */
58 CTL_DEBUG=6, /* Debugging */
59 CTL_DEV=7, /* Devices */
60 CTL_BUS=8, /* Busses */
61 CTL_ABI=9, /* Binary emulation */
50d851f7 62 CTL_CPU=10, /* CPU stuff (speed scaling, etc) */
59fc5313 63 CTL_ARLAN=254, /* arlan wireless driver */
feceb63e 64 CTL_S390DBF=5677, /* s390 debug */
50d851f7 65 CTL_SUNRPC=7249, /* sunrpc debug */
462591b8 66 CTL_PM=9899, /* frv power management */
77f6dfb1 67 CTL_FRV=9898, /* frv specific sysctls */
1da177e4
LT		 68};
69
70/* CTL_BUS names: */
71enum
72{
73 CTL_BUS_ISA=1 /* ISA */
74};
75
0399cb08 76/* /proc/sys/fs/inotify/ */
0eeca283
RL		 77enum
78{
0399cb08
RL		 79 INOTIFY_MAX_USER_INSTANCES=1, /* max instances per user */
80 INOTIFY_MAX_USER_WATCHES=2, /* max watches per user */
81 INOTIFY_MAX_QUEUED_EVENTS=3 /* max queued events per instance */
0eeca283
RL		 82};
83
1da177e4
LT		 84/* CTL_KERN names: */
85enum
86{
87 KERN_OSTYPE=1, /* string: system version */
88 KERN_OSRELEASE=2, /* string: system release */
89 KERN_OSREV=3, /* int: system revision */
90 KERN_VERSION=4, /* string: compile time info */
91 KERN_SECUREMASK=5, /* struct: maximum rights mask */
92 KERN_PROF=6, /* table: profiling information */
8a747703
TLSC		 93 KERN_NODENAME=7, /* string: hostname */
94 KERN_DOMAINNAME=8, /* string: domainname */
1da177e4 95
1da177e4
LT		 96 KERN_PANIC=15, /* int: panic timeout */
97 KERN_REALROOTDEV=16, /* real root device to mount after initrd */
98
99 KERN_SPARC_REBOOT=21, /* reboot command on Sparc */
100 KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */
101 KERN_PRINTK=23, /* struct: control printk logging parameters */
102 KERN_NAMETRANS=24, /* Name translation */
103 KERN_PPC_HTABRECLAIM=25, /* turn htab reclaimation on/off on PPC */
104 KERN_PPC_ZEROPAGED=26, /* turn idle page zeroing on/off on PPC */
105 KERN_PPC_POWERSAVE_NAP=27, /* use nap mode for power saving */
8a747703
TLSC		 106 KERN_MODPROBE=28, /* string: modprobe path */
107 KERN_SG_BIG_BUFF=29, /* int: sg driver reserved buffer size */
1da177e4
LT		 108 KERN_ACCT=30, /* BSD process accounting parameters */
109 KERN_PPC_L2CR=31, /* l2cr register on PPC */
110
111 KERN_RTSIGNR=32, /* Number of rt sigs queued */
112 KERN_RTSIGMAX=33, /* Max queuable */
113
114 KERN_SHMMAX=34, /* long: Maximum shared memory segment */
115 KERN_MSGMAX=35, /* int: Maximum size of a messege */
116 KERN_MSGMNB=36, /* int: Maximum message queue size */
117 KERN_MSGPOOL=37, /* int: Maximum system message pool size */
118 KERN_SYSRQ=38, /* int: Sysreq enable */
119 KERN_MAX_THREADS=39, /* int: Maximum nr of threads in the system */
120 KERN_RANDOM=40, /* Random driver */
121 KERN_SHMALL=41, /* int: Maximum size of shared memory */
122 KERN_MSGMNI=42, /* int: msg queue identifiers */
123 KERN_SEM=43, /* struct: sysv semaphore limits */
124 KERN_SPARC_STOP_A=44, /* int: Sparc Stop-A enable */
125 KERN_SHMMNI=45, /* int: shm array identifiers */
126 KERN_OVERFLOWUID=46, /* int: overflow UID */
127 KERN_OVERFLOWGID=47, /* int: overflow GID */
128 KERN_SHMPATH=48, /* string: path to shm fs */
312c004d 129 KERN_HOTPLUG=49, /* string: path to uevent helper (deprecated) */
1da177e4
LT		 130 KERN_IEEE_EMULATION_WARNINGS=50, /* int: unimplemented ieee instructions */
131 KERN_S390_USER_DEBUG_LOGGING=51, /* int: dumps of user faults */
132 KERN_CORE_USES_PID=52, /* int: use core or core.%pid */
133 KERN_TAINTED=53, /* int: various kernel tainted flags */
134 KERN_CADPID=54, /* int: PID of the process to notify on CAD */
135 KERN_PIDMAX=55, /* int: PID # limit */
136 KERN_CORE_PATTERN=56, /* string: pattern for core-file names */
137 KERN_PANIC_ON_OOPS=57, /* int: whether we will panic on an oops */
138 KERN_HPPA_PWRSW=58, /* int: hppa soft-power enable */
139 KERN_HPPA_UNALIGNED=59, /* int: hppa unaligned-trap enable */
140 KERN_PRINTK_RATELIMIT=60, /* int: tune printk ratelimiting */
141 KERN_PRINTK_RATELIMIT_BURST=61, /* int: tune printk ratelimiting */
142 KERN_PTY=62, /* dir: pty driver */
143 KERN_NGROUPS_MAX=63, /* int: NGROUPS_MAX */
144 KERN_SPARC_SCONS_PWROFF=64, /* int: serial console power-off halt */
145 KERN_HZ_TIMER=65, /* int: hz timer on or off */
146 KERN_UNKNOWN_NMI_PANIC=66, /* int: unknown nmi panic flag */
147 KERN_BOOTLOADER_TYPE=67, /* int: boot loader type */
148 KERN_RANDOMIZE=68, /* int: randomize virtual address space */
d6e71144 149 KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */
951f22d5 150 KERN_SPIN_RETRY=70, /* int: number of spinlock retries */
c255d844 151 KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */
d2b176ed 152 KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */
bebfa101 153 KERN_COMPAT_LOG=73, /* int: print compat layer messages */
8a747703 154 KERN_MAX_LOCK_DEPTH=74, /* int: rtmutex's maximum lock depth */
407984f1 155 KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */
8da5adda 156 KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
1da177e4
LT		 157};
158
159
bebfa101 160
1da177e4
LT		 161/* CTL_VM names: */
162enum
163{
164 VM_UNUSED1=1, /* was: struct: Set vm swapping control */
165 VM_UNUSED2=2, /* was; int: Linear or sqrt() swapout for hogs */
166 VM_UNUSED3=3, /* was: struct: Set free page thresholds */
167 VM_UNUSED4=4, /* Spare */
168 VM_OVERCOMMIT_MEMORY=5, /* Turn off the virtual memory safety limit */
169 VM_UNUSED5=6, /* was: struct: Set buffer memory thresholds */
170 VM_UNUSED7=7, /* was: struct: Set cache memory thresholds */
171 VM_UNUSED8=8, /* was: struct: Control kswapd behaviour */
172 VM_UNUSED9=9, /* was: struct: Set page table cache parameters */
173 VM_PAGE_CLUSTER=10, /* int: set number of pages to swap together */
174 VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */
175 VM_DIRTY_RATIO=12, /* dirty_ratio */
176 VM_DIRTY_WB_CS=13, /* dirty_writeback_centisecs */
177 VM_DIRTY_EXPIRE_CS=14, /* dirty_expire_centisecs */
178 VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */
179 VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */
180 VM_PAGEBUF=17, /* struct: Control pagebuf parameters */
181 VM_HUGETLB_PAGES=18, /* int: Number of available Huge Pages */
182 VM_SWAPPINESS=19, /* Tendency to steal mapped memory */
183 VM_LOWMEM_RESERVE_RATIO=20,/* reservation ratio for lower memory zones */
184 VM_MIN_FREE_KBYTES=21, /* Minimum free kilobytes to maintain */
185 VM_MAX_MAP_COUNT=22, /* int: Maximum number of mmaps/address-space */
186 VM_LAPTOP_MODE=23, /* vm laptop mode */
187 VM_BLOCK_DUMP=24, /* block dump mode */
188 VM_HUGETLB_GROUP=25, /* permitted hugetlb group */
189 VM_VFS_CACHE_PRESSURE=26, /* dcache/icache reclaim pressure */
190 VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */
191 VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */
9d0243bc 192 VM_DROP_PAGECACHE=29, /* int: nuke lots of pagecache */
8ad4b1fb 193 VM_PERCPU_PAGELIST_FRACTION=30,/* int: fraction of pages in each percpu_pagelist */
2a11ff06 194 VM_ZONE_RECLAIM_MODE=31, /* reclaim local zone memory before going off node */
9614634f 195 VM_MIN_UNMAPPED=32, /* Set min percent of unmapped pages */
fadd8fbd 196 VM_PANIC_ON_OOM=33, /* panic at out-of-memory */
e6e5494c 197 VM_VDSO_ENABLED=34, /* map VDSO into new processes? */
0ff38490 198 VM_MIN_SLAB=35, /* Percent pages ignored by zone reclaim */
1da177e4
LT		 199};
200
201
202/* CTL_NET names: */
203enum
204{
205 NET_CORE=1,
206 NET_ETHER=2,
207 NET_802=3,
208 NET_UNIX=4,
209 NET_IPV4=5,
210 NET_IPX=6,
211 NET_ATALK=7,
212 NET_NETROM=8,
213 NET_AX25=9,
214 NET_BRIDGE=10,
215 NET_ROSE=11,
216 NET_IPV6=12,
217 NET_X25=13,
218 NET_TR=14,
219 NET_DECNET=15,
220 NET_ECONET=16,
590232a7
ACM		 221 NET_SCTP=17,
222 NET_LLC=18,
9fb9cbb1 223 NET_NETFILTER=19,
e55d912f 224 NET_DCCP=20,
f429cd37 225 NET_IRDA=412,
1da177e4
LT		 226};
227
228/* /proc/sys/kernel/random */
229enum
230{
231 RANDOM_POOLSIZE=1,
232 RANDOM_ENTROPY_COUNT=2,
233 RANDOM_READ_THRESH=3,
234 RANDOM_WRITE_THRESH=4,
235 RANDOM_BOOT_ID=5,
236 RANDOM_UUID=6
237};
238
239/* /proc/sys/kernel/pty */
240enum
241{
242 PTY_MAX=1,
243 PTY_NR=2
244};
245
246/* /proc/sys/bus/isa */
247enum
248{
249 BUS_ISA_MEM_BASE=1,
250 BUS_ISA_PORT_BASE=2,
251 BUS_ISA_PORT_SHIFT=3
252};
253
254/* /proc/sys/net/core */
255enum
256{
257 NET_CORE_WMEM_MAX=1,
258 NET_CORE_RMEM_MAX=2,
259 NET_CORE_WMEM_DEFAULT=3,
260 NET_CORE_RMEM_DEFAULT=4,
261/* was NET_CORE_DESTROY_DELAY */
262 NET_CORE_MAX_BACKLOG=6,
263 NET_CORE_FASTROUTE=7,
264 NET_CORE_MSG_COST=8,
265 NET_CORE_MSG_BURST=9,
266 NET_CORE_OPTMEM_MAX=10,
267 NET_CORE_HOT_LIST_LENGTH=11,
268 NET_CORE_DIVERT_VERSION=12,
269 NET_CORE_NO_CONG_THRESH=13,
270 NET_CORE_NO_CONG=14,
271 NET_CORE_LO_CONG=15,
272 NET_CORE_MOD_CONG=16,
273 NET_CORE_DEV_WEIGHT=17,
274 NET_CORE_SOMAXCONN=18,
51b0bded 275 NET_CORE_BUDGET=19,
f8cd5488
JHS		 276 NET_CORE_AEVENT_ETIME=20,
277 NET_CORE_AEVENT_RSEQTH=21,
a2a316fd 278 NET_CORE_WARNINGS=22,
1da177e4
LT		 279};
280
281/* /proc/sys/net/ethernet */
282
283/* /proc/sys/net/802 */
284
285/* /proc/sys/net/unix */
286
287enum
288{
289 NET_UNIX_DESTROY_DELAY=1,
290 NET_UNIX_DELETE_DELAY=2,
291 NET_UNIX_MAX_DGRAM_QLEN=3,
292};
293
9fb9cbb1
YK		 294/* /proc/sys/net/netfilter */
295enum
296{
297 NET_NF_CONNTRACK_MAX=1,
298 NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
299 NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
300 NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
301 NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
302 NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
303 NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
304 NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
305 NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
306 NET_NF_CONNTRACK_UDP_TIMEOUT=10,
307 NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
308 NET_NF_CONNTRACK_ICMP_TIMEOUT=12,
309 NET_NF_CONNTRACK_GENERIC_TIMEOUT=13,
310 NET_NF_CONNTRACK_BUCKETS=14,
311 NET_NF_CONNTRACK_LOG_INVALID=15,
312 NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
313 NET_NF_CONNTRACK_TCP_LOOSE=17,
314 NET_NF_CONNTRACK_TCP_BE_LIBERAL=18,
315 NET_NF_CONNTRACK_TCP_MAX_RETRANS=19,
316 NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
317 NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
318 NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
319 NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
320 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
321 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
322 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
323 NET_NF_CONNTRACK_COUNT=27,
324 NET_NF_CONNTRACK_ICMPV6_TIMEOUT=28,
325 NET_NF_CONNTRACK_FRAG6_TIMEOUT=29,
326 NET_NF_CONNTRACK_FRAG6_LOW_THRESH=30,
327 NET_NF_CONNTRACK_FRAG6_HIGH_THRESH=31,
39a27a35 328 NET_NF_CONNTRACK_CHECKSUM=32,
9fb9cbb1
YK		 329};
330
1da177e4
LT		 331/* /proc/sys/net/ipv4 */
332enum
333{
334 /* v2.0 compatibile variables */
335 NET_IPV4_FORWARD=8,
336 NET_IPV4_DYNADDR=9,
337
338 NET_IPV4_CONF=16,
339 NET_IPV4_NEIGH=17,
340 NET_IPV4_ROUTE=18,
341 NET_IPV4_FIB_HASH=19,
342 NET_IPV4_NETFILTER=20,
343
344 NET_IPV4_TCP_TIMESTAMPS=33,
345 NET_IPV4_TCP_WINDOW_SCALING=34,
346 NET_IPV4_TCP_SACK=35,
347 NET_IPV4_TCP_RETRANS_COLLAPSE=36,
348 NET_IPV4_DEFAULT_TTL=37,
349 NET_IPV4_AUTOCONFIG=38,
350 NET_IPV4_NO_PMTU_DISC=39,
351 NET_IPV4_TCP_SYN_RETRIES=40,
352 NET_IPV4_IPFRAG_HIGH_THRESH=41,
353 NET_IPV4_IPFRAG_LOW_THRESH=42,
354 NET_IPV4_IPFRAG_TIME=43,
355 NET_IPV4_TCP_MAX_KA_PROBES=44,
356 NET_IPV4_TCP_KEEPALIVE_TIME=45,
357 NET_IPV4_TCP_KEEPALIVE_PROBES=46,
358 NET_IPV4_TCP_RETRIES1=47,
359 NET_IPV4_TCP_RETRIES2=48,
360 NET_IPV4_TCP_FIN_TIMEOUT=49,
361 NET_IPV4_IP_MASQ_DEBUG=50,
362 NET_TCP_SYNCOOKIES=51,
363 NET_TCP_STDURG=52,
364 NET_TCP_RFC1337=53,
365 NET_TCP_SYN_TAILDROP=54,
366 NET_TCP_MAX_SYN_BACKLOG=55,
367 NET_IPV4_LOCAL_PORT_RANGE=56,
368 NET_IPV4_ICMP_ECHO_IGNORE_ALL=57,
369 NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS=58,
370 NET_IPV4_ICMP_SOURCEQUENCH_RATE=59,
371 NET_IPV4_ICMP_DESTUNREACH_RATE=60,
372 NET_IPV4_ICMP_TIMEEXCEED_RATE=61,
373 NET_IPV4_ICMP_PARAMPROB_RATE=62,
374 NET_IPV4_ICMP_ECHOREPLY_RATE=63,
375 NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES=64,
376 NET_IPV4_IGMP_MAX_MEMBERSHIPS=65,
377 NET_TCP_TW_RECYCLE=66,
378 NET_IPV4_ALWAYS_DEFRAG=67,
379 NET_IPV4_TCP_KEEPALIVE_INTVL=68,
380 NET_IPV4_INET_PEER_THRESHOLD=69,
381 NET_IPV4_INET_PEER_MINTTL=70,
382 NET_IPV4_INET_PEER_MAXTTL=71,
383 NET_IPV4_INET_PEER_GC_MINTIME=72,
384 NET_IPV4_INET_PEER_GC_MAXTIME=73,
385 NET_TCP_ORPHAN_RETRIES=74,
386 NET_TCP_ABORT_ON_OVERFLOW=75,
387 NET_TCP_SYNACK_RETRIES=76,
388 NET_TCP_MAX_ORPHANS=77,
389 NET_TCP_MAX_TW_BUCKETS=78,
390 NET_TCP_FACK=79,
391 NET_TCP_REORDERING=80,
392 NET_TCP_ECN=81,
393 NET_TCP_DSACK=82,
394 NET_TCP_MEM=83,
395 NET_TCP_WMEM=84,
396 NET_TCP_RMEM=85,
397 NET_TCP_APP_WIN=86,
398 NET_TCP_ADV_WIN_SCALE=87,
399 NET_IPV4_NONLOCAL_BIND=88,
400 NET_IPV4_ICMP_RATELIMIT=89,
401 NET_IPV4_ICMP_RATEMASK=90,
402 NET_TCP_TW_REUSE=91,
403 NET_TCP_FRTO=92,
404 NET_TCP_LOW_LATENCY=93,
405 NET_IPV4_IPFRAG_SECRET_INTERVAL=94,
1da177e4
LT		 406 NET_IPV4_IGMP_MAX_MSF=96,
407 NET_TCP_NO_METRICS_SAVE=97,
1da177e4
LT		 408 NET_TCP_DEFAULT_WIN_SCALE=105,
409 NET_TCP_MODERATE_RCVBUF=106,
410 NET_TCP_TSO_WIN_DIVISOR=107,
411 NET_TCP_BIC_BETA=108,
1c2fb7f9 412 NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109,
317a76f9 413 NET_TCP_CONG_CONTROL=110,
9772efb9 414 NET_TCP_ABC=111,
89cee8b1 415 NET_IPV4_IPFRAG_MAX_DIST=112,
5d424d5a
JH		 416 NET_TCP_MTU_PROBING=113,
417 NET_TCP_BASE_MSS=114,
15d99e02 418 NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS=115,
95937825 419 NET_TCP_DMA_COPYBREAK=116,
35089bb2 420 NET_TCP_SLOW_START_AFTER_IDLE=117,
446fda4f
PM		 421 NET_CIPSOV4_CACHE_ENABLE=118,
422 NET_CIPSOV4_CACHE_BUCKET_SIZE=119,
423 NET_CIPSOV4_RBM_OPTFMT=120,
424 NET_CIPSOV4_RBM_STRICTVALID=121,
3ff825b2 425 NET_TCP_AVAIL_CONG_CONTROL=122,
ce7bc3bf 426 NET_TCP_ALLOWED_CONG_CONTROL=123,
886236c1 427 NET_TCP_MAX_SSTHRESH=124,
3cfe3baa 428 NET_TCP_FRTO_RESPONSE=125,
1da177e4
LT		 429};
430
431enum {
432 NET_IPV4_ROUTE_FLUSH=1,
29e75252
ED		 433 NET_IPV4_ROUTE_MIN_DELAY=2, /* obsolete since 2.6.25 */
434 NET_IPV4_ROUTE_MAX_DELAY=3, /* obsolete since 2.6.25 */
1da177e4
LT		 435 NET_IPV4_ROUTE_GC_THRESH=4,
436 NET_IPV4_ROUTE_MAX_SIZE=5,
437 NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
438 NET_IPV4_ROUTE_GC_TIMEOUT=7,
439 NET_IPV4_ROUTE_GC_INTERVAL=8,
440 NET_IPV4_ROUTE_REDIRECT_LOAD=9,
441 NET_IPV4_ROUTE_REDIRECT_NUMBER=10,
442 NET_IPV4_ROUTE_REDIRECT_SILENCE=11,
443 NET_IPV4_ROUTE_ERROR_COST=12,
444 NET_IPV4_ROUTE_ERROR_BURST=13,
445 NET_IPV4_ROUTE_GC_ELASTICITY=14,
446 NET_IPV4_ROUTE_MTU_EXPIRES=15,
447 NET_IPV4_ROUTE_MIN_PMTU=16,
448 NET_IPV4_ROUTE_MIN_ADVMSS=17,
449 NET_IPV4_ROUTE_SECRET_INTERVAL=18,
450 NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS=19,
451};
452
453enum
454{
455 NET_PROTO_CONF_ALL=-2,
456 NET_PROTO_CONF_DEFAULT=-3
457
458 /* And device ifindices ... */
459};
460
461enum
462{
463 NET_IPV4_CONF_FORWARDING=1,
464 NET_IPV4_CONF_MC_FORWARDING=2,
465 NET_IPV4_CONF_PROXY_ARP=3,
466 NET_IPV4_CONF_ACCEPT_REDIRECTS=4,
467 NET_IPV4_CONF_SECURE_REDIRECTS=5,
468 NET_IPV4_CONF_SEND_REDIRECTS=6,
469 NET_IPV4_CONF_SHARED_MEDIA=7,
470 NET_IPV4_CONF_RP_FILTER=8,
471 NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE=9,
472 NET_IPV4_CONF_BOOTP_RELAY=10,
473 NET_IPV4_CONF_LOG_MARTIANS=11,
474 NET_IPV4_CONF_TAG=12,
475 NET_IPV4_CONF_ARPFILTER=13,
476 NET_IPV4_CONF_MEDIUM_ID=14,
477 NET_IPV4_CONF_NOXFRM=15,
478 NET_IPV4_CONF_NOPOLICY=16,
479 NET_IPV4_CONF_FORCE_IGMP_VERSION=17,
480 NET_IPV4_CONF_ARP_ANNOUNCE=18,
481 NET_IPV4_CONF_ARP_IGNORE=19,
8f937c60 482 NET_IPV4_CONF_PROMOTE_SECONDARIES=20,
abd596a4 483 NET_IPV4_CONF_ARP_ACCEPT=21,
eefef1cf 484 NET_IPV4_CONF_ARP_NOTIFY=22,
1da177e4
LT		 485};
486
487/* /proc/sys/net/ipv4/netfilter */
488enum
489{
490 NET_IPV4_NF_CONNTRACK_MAX=1,
491 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
492 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
493 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
494 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
495 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
496 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
497 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
498 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
499 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT=10,
500 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
501 NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT=12,
502 NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT=13,
503 NET_IPV4_NF_CONNTRACK_BUCKETS=14,
504 NET_IPV4_NF_CONNTRACK_LOG_INVALID=15,
505 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
506 NET_IPV4_NF_CONNTRACK_TCP_LOOSE=17,
507 NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL=18,
508 NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS=19,
509 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
510 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
511 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
512 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
513 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
514 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
515 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
516 NET_IPV4_NF_CONNTRACK_COUNT=27,
39a27a35 517 NET_IPV4_NF_CONNTRACK_CHECKSUM=28,
1da177e4
LT		 518};
519
520/* /proc/sys/net/ipv6 */
521enum {
522 NET_IPV6_CONF=16,
523 NET_IPV6_NEIGH=17,
524 NET_IPV6_ROUTE=18,
525 NET_IPV6_ICMP=19,
526 NET_IPV6_BINDV6ONLY=20,
527 NET_IPV6_IP6FRAG_HIGH_THRESH=21,
528 NET_IPV6_IP6FRAG_LOW_THRESH=22,
529 NET_IPV6_IP6FRAG_TIME=23,
530 NET_IPV6_IP6FRAG_SECRET_INTERVAL=24,
531 NET_IPV6_MLD_MAX_MSF=25,
532};
533
534enum {
535 NET_IPV6_ROUTE_FLUSH=1,
536 NET_IPV6_ROUTE_GC_THRESH=2,
537 NET_IPV6_ROUTE_MAX_SIZE=3,
538 NET_IPV6_ROUTE_GC_MIN_INTERVAL=4,
539 NET_IPV6_ROUTE_GC_TIMEOUT=5,
540 NET_IPV6_ROUTE_GC_INTERVAL=6,
541 NET_IPV6_ROUTE_GC_ELASTICITY=7,
542 NET_IPV6_ROUTE_MTU_EXPIRES=8,
543 NET_IPV6_ROUTE_MIN_ADVMSS=9,
544 NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS=10
545};
546
547enum {
548 NET_IPV6_FORWARDING=1,
549 NET_IPV6_HOP_LIMIT=2,
550 NET_IPV6_MTU=3,
551 NET_IPV6_ACCEPT_RA=4,
552 NET_IPV6_ACCEPT_REDIRECTS=5,
553 NET_IPV6_AUTOCONF=6,
554 NET_IPV6_DAD_TRANSMITS=7,
555 NET_IPV6_RTR_SOLICITS=8,
556 NET_IPV6_RTR_SOLICIT_INTERVAL=9,
557 NET_IPV6_RTR_SOLICIT_DELAY=10,
558 NET_IPV6_USE_TEMPADDR=11,
559 NET_IPV6_TEMP_VALID_LFT=12,
560 NET_IPV6_TEMP_PREFERED_LFT=13,
561 NET_IPV6_REGEN_MAX_RETRY=14,
562 NET_IPV6_MAX_DESYNC_FACTOR=15,
563 NET_IPV6_MAX_ADDRESSES=16,
564 NET_IPV6_FORCE_MLD_VERSION=17,
65f5c7c1 565 NET_IPV6_ACCEPT_RA_DEFRTR=18,
c4fd30eb 566 NET_IPV6_ACCEPT_RA_PINFO=19,
930d6ff2 567 NET_IPV6_ACCEPT_RA_RTR_PREF=20,
52e16356 568 NET_IPV6_RTR_PROBE_INTERVAL=21,
09c884d4 569 NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN=22,
fbea49e1 570 NET_IPV6_PROXY_NDP=23,
0bcbc926 571 NET_IPV6_ACCEPT_SOURCE_ROUTE=25,
1da177e4
LT		 572 __NET_IPV6_MAX
573};
574
575/* /proc/sys/net/ipv6/icmp */
576enum {
577 NET_IPV6_ICMP_RATELIMIT=1
578};
579
580/* /proc/sys/net/<protocol>/neigh/<dev> */
581enum {
582 NET_NEIGH_MCAST_SOLICIT=1,
583 NET_NEIGH_UCAST_SOLICIT=2,
584 NET_NEIGH_APP_SOLICIT=3,
585 NET_NEIGH_RETRANS_TIME=4,
586 NET_NEIGH_REACHABLE_TIME=5,
587 NET_NEIGH_DELAY_PROBE_TIME=6,
588 NET_NEIGH_GC_STALE_TIME=7,
589 NET_NEIGH_UNRES_QLEN=8,
590 NET_NEIGH_PROXY_QLEN=9,
591 NET_NEIGH_ANYCAST_DELAY=10,
592 NET_NEIGH_PROXY_DELAY=11,
593 NET_NEIGH_LOCKTIME=12,
594 NET_NEIGH_GC_INTERVAL=13,
595 NET_NEIGH_GC_THRESH1=14,
596 NET_NEIGH_GC_THRESH2=15,
597 NET_NEIGH_GC_THRESH3=16,
598 NET_NEIGH_RETRANS_TIME_MS=17,
599 NET_NEIGH_REACHABLE_TIME_MS=18,
1da177e4
LT		 600};
601
e55d912f
ACM		 602/* /proc/sys/net/dccp */
603enum {
604 NET_DCCP_DEFAULT=1,
605};
606
1da177e4
LT		 607/* /proc/sys/net/ipx */
608enum {
609 NET_IPX_PPROP_BROADCASTING=1,
610 NET_IPX_FORWARDING=2
611};
612
590232a7
ACM		 613/* /proc/sys/net/llc */
614enum {
615 NET_LLC2=1,
616 NET_LLC_STATION=2,
617};
618
619/* /proc/sys/net/llc/llc2 */
620enum {
621 NET_LLC2_TIMEOUT=1,
622};
623
624/* /proc/sys/net/llc/station */
625enum {
626 NET_LLC_STATION_ACK_TIMEOUT=1,
627};
628
629/* /proc/sys/net/llc/llc2/timeout */
630enum {
631 NET_LLC2_ACK_TIMEOUT=1,
632 NET_LLC2_P_TIMEOUT=2,
633 NET_LLC2_REJ_TIMEOUT=3,
634 NET_LLC2_BUSY_TIMEOUT=4,
635};
1da177e4
LT		 636
637/* /proc/sys/net/appletalk */
638enum {
639 NET_ATALK_AARP_EXPIRY_TIME=1,
640 NET_ATALK_AARP_TICK_TIME=2,
641 NET_ATALK_AARP_RETRANSMIT_LIMIT=3,
642 NET_ATALK_AARP_RESOLVE_TIME=4
643};
644
645
646/* /proc/sys/net/netrom */
647enum {
648 NET_NETROM_DEFAULT_PATH_QUALITY=1,
649 NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2,
650 NET_NETROM_NETWORK_TTL_INITIALISER=3,
651 NET_NETROM_TRANSPORT_TIMEOUT=4,
652 NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5,
653 NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6,
654 NET_NETROM_TRANSPORT_BUSY_DELAY=7,
655 NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8,
656 NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9,
657 NET_NETROM_ROUTING_CONTROL=10,
e21ce8c7
RB		 658 NET_NETROM_LINK_FAILS_COUNT=11,
659 NET_NETROM_RESET=12
1da177e4
LT		 660};
661
662/* /proc/sys/net/ax25 */
663enum {
664 NET_AX25_IP_DEFAULT_MODE=1,
665 NET_AX25_DEFAULT_MODE=2,
666 NET_AX25_BACKOFF_TYPE=3,
667 NET_AX25_CONNECT_MODE=4,
668 NET_AX25_STANDARD_WINDOW=5,
669 NET_AX25_EXTENDED_WINDOW=6,
670 NET_AX25_T1_TIMEOUT=7,
671 NET_AX25_T2_TIMEOUT=8,
672 NET_AX25_T3_TIMEOUT=9,
673 NET_AX25_IDLE_TIMEOUT=10,
674 NET_AX25_N2=11,
675 NET_AX25_PACLEN=12,
676 NET_AX25_PROTOCOL=13,
677 NET_AX25_DAMA_SLAVE_TIMEOUT=14
678};
679
680/* /proc/sys/net/rose */
681enum {
682 NET_ROSE_RESTART_REQUEST_TIMEOUT=1,
683 NET_ROSE_CALL_REQUEST_TIMEOUT=2,
684 NET_ROSE_RESET_REQUEST_TIMEOUT=3,
685 NET_ROSE_CLEAR_REQUEST_TIMEOUT=4,
686 NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5,
687 NET_ROSE_ROUTING_CONTROL=6,
688 NET_ROSE_LINK_FAIL_TIMEOUT=7,
689 NET_ROSE_MAX_VCS=8,
690 NET_ROSE_WINDOW_SIZE=9,
691 NET_ROSE_NO_ACTIVITY_TIMEOUT=10
692};
693
694/* /proc/sys/net/x25 */
695enum {
696 NET_X25_RESTART_REQUEST_TIMEOUT=1,
697 NET_X25_CALL_REQUEST_TIMEOUT=2,
698 NET_X25_RESET_REQUEST_TIMEOUT=3,
699 NET_X25_CLEAR_REQUEST_TIMEOUT=4,
39e21c0d
AH		 700 NET_X25_ACK_HOLD_BACK_TIMEOUT=5,
701 NET_X25_FORWARD=6
1da177e4
LT		 702};
703
704/* /proc/sys/net/token-ring */
705enum
706{
707 NET_TR_RIF_TIMEOUT=1
708};
709
710/* /proc/sys/net/decnet/ */
711enum {
712 NET_DECNET_NODE_TYPE = 1,
713 NET_DECNET_NODE_ADDRESS = 2,
714 NET_DECNET_NODE_NAME = 3,
715 NET_DECNET_DEFAULT_DEVICE = 4,
716 NET_DECNET_TIME_WAIT = 5,
717 NET_DECNET_DN_COUNT = 6,
718 NET_DECNET_DI_COUNT = 7,
719 NET_DECNET_DR_COUNT = 8,
720 NET_DECNET_DST_GC_INTERVAL = 9,
721 NET_DECNET_CONF = 10,
722 NET_DECNET_NO_FC_MAX_CWND = 11,
1f12bcc9
SW		 723 NET_DECNET_MEM = 12,
724 NET_DECNET_RMEM = 13,
725 NET_DECNET_WMEM = 14,
1da177e4
LT		 726 NET_DECNET_DEBUG_LEVEL = 255
727};
728
729/* /proc/sys/net/decnet/conf/<dev> */
730enum {
731 NET_DECNET_CONF_LOOPBACK = -2,
732 NET_DECNET_CONF_DDCMP = -3,
733 NET_DECNET_CONF_PPP = -4,
734 NET_DECNET_CONF_X25 = -5,
735 NET_DECNET_CONF_GRE = -6,
736 NET_DECNET_CONF_ETHER = -7
737
738 /* ... and ifindex of devices */
739};
740
741/* /proc/sys/net/decnet/conf/<dev>/ */
742enum {
743 NET_DECNET_CONF_DEV_PRIORITY = 1,
744 NET_DECNET_CONF_DEV_T1 = 2,
745 NET_DECNET_CONF_DEV_T2 = 3,
746 NET_DECNET_CONF_DEV_T3 = 4,
747 NET_DECNET_CONF_DEV_FORWARDING = 5,
748 NET_DECNET_CONF_DEV_BLKSIZE = 6,
749 NET_DECNET_CONF_DEV_STATE = 7
750};
751
752/* /proc/sys/net/sctp */
753enum {
754 NET_SCTP_RTO_INITIAL = 1,
755 NET_SCTP_RTO_MIN = 2,
756 NET_SCTP_RTO_MAX = 3,
757 NET_SCTP_RTO_ALPHA = 4,
758 NET_SCTP_RTO_BETA = 5,
759 NET_SCTP_VALID_COOKIE_LIFE = 6,
760 NET_SCTP_ASSOCIATION_MAX_RETRANS = 7,
761 NET_SCTP_PATH_MAX_RETRANS = 8,
762 NET_SCTP_MAX_INIT_RETRANSMITS = 9,
763 NET_SCTP_HB_INTERVAL = 10,
764 NET_SCTP_PRESERVE_ENABLE = 11,
765 NET_SCTP_MAX_BURST = 12,
766 NET_SCTP_ADDIP_ENABLE = 13,
767 NET_SCTP_PRSCTP_ENABLE = 14,
4eb701df 768 NET_SCTP_SNDBUF_POLICY = 15,
2f85a429 769 NET_SCTP_SACK_TIMEOUT = 16,
049b3ff5 770 NET_SCTP_RCVBUF_POLICY = 17,
1da177e4
LT		 771};
772
773/* /proc/sys/net/bridge */
774enum {
775 NET_BRIDGE_NF_CALL_ARPTABLES = 1,
776 NET_BRIDGE_NF_CALL_IPTABLES = 2,
777 NET_BRIDGE_NF_CALL_IP6TABLES = 3,
778 NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4,
516299d2 779 NET_BRIDGE_NF_FILTER_PPPOE_TAGGED = 5,
1da177e4
LT		 780};
781
f429cd37
EB		 782/* proc/sys/net/irda */
783enum {
784 NET_IRDA_DISCOVERY=1,
785 NET_IRDA_DEVNAME=2,
786 NET_IRDA_DEBUG=3,
787 NET_IRDA_FAST_POLL=4,
788 NET_IRDA_DISCOVERY_SLOTS=5,
789 NET_IRDA_DISCOVERY_TIMEOUT=6,
790 NET_IRDA_SLOT_TIMEOUT=7,
791 NET_IRDA_MAX_BAUD_RATE=8,
792 NET_IRDA_MIN_TX_TURN_TIME=9,
793 NET_IRDA_MAX_TX_DATA_SIZE=10,
794 NET_IRDA_MAX_TX_WINDOW=11,
795 NET_IRDA_MAX_NOREPLY_TIME=12,
796 NET_IRDA_WARN_NOREPLY_TIME=13,
797 NET_IRDA_LAP_KEEPALIVE_TIME=14,
798};
799
800
1da177e4
LT		 801/* CTL_FS names: */
802enum
803{
804 FS_NRINODE=1, /* int:current number of allocated inodes */
805 FS_STATINODE=2,
806 FS_MAXINODE=3, /* int:maximum number of inodes that can be allocated */
807 FS_NRDQUOT=4, /* int:current number of allocated dquots */
808 FS_MAXDQUOT=5, /* int:maximum number of dquots that can be allocated */
809 FS_NRFILE=6, /* int:current number of allocated filedescriptors */
810 FS_MAXFILE=7, /* int:maximum number of filedescriptors that can be allocated */
811 FS_DENTRY=8,
812 FS_NRSUPER=9, /* int:current number of allocated super_blocks */
813 FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */
814 FS_OVERFLOWUID=11, /* int: overflow UID */
815 FS_OVERFLOWGID=12, /* int: overflow GID */
816 FS_LEASES=13, /* int: leases enabled */
817 FS_DIR_NOTIFY=14, /* int: directory notification enabled */
818 FS_LEASE_TIME=15, /* int: maximum time to wait for a lease break */
819 FS_DQSTATS=16, /* disc quota usage statistics and control */
820 FS_XFS=17, /* struct: control xfs parameters */
821 FS_AIO_NR=18, /* current system-wide number of aio requests */
822 FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */
0399cb08 823 FS_INOTIFY=20, /* inotify submenu */
0e03036c 824 FS_OCFS2=988, /* ocfs2 */
1da177e4
LT		 825};
826
827/* /proc/sys/fs/quota/ */
828enum {
829 FS_DQ_LOOKUPS = 1,
830 FS_DQ_DROPS = 2,
831 FS_DQ_READS = 3,
832 FS_DQ_WRITES = 4,
833 FS_DQ_CACHE_HITS = 5,
834 FS_DQ_ALLOCATED = 6,
835 FS_DQ_FREE = 7,
836 FS_DQ_SYNCS = 8,
837 FS_DQ_WARNINGS = 9,
838};
839
840/* CTL_DEBUG names: */
841
842/* CTL_DEV names: */
843enum {
844 DEV_CDROM=1,
845 DEV_HWMON=2,
846 DEV_PARPORT=3,
847 DEV_RAID=4,
848 DEV_MAC_HID=5,
849 DEV_SCSI=6,
8c702e16 850 DEV_IPMI=7,
1da177e4
LT		 851};
852
853/* /proc/sys/dev/cdrom */
854enum {
855 DEV_CDROM_INFO=1,
856 DEV_CDROM_AUTOCLOSE=2,
857 DEV_CDROM_AUTOEJECT=3,
858 DEV_CDROM_DEBUG=4,
859 DEV_CDROM_LOCK=5,
860 DEV_CDROM_CHECK_MEDIA=6
861};
862
863/* /proc/sys/dev/parport */
864enum {
865 DEV_PARPORT_DEFAULT=-3
866};
867
868/* /proc/sys/dev/raid */
869enum {
870 DEV_RAID_SPEED_LIMIT_MIN=1,
871 DEV_RAID_SPEED_LIMIT_MAX=2
872};
873
874/* /proc/sys/dev/parport/default */
875enum {
876 DEV_PARPORT_DEFAULT_TIMESLICE=1,
877 DEV_PARPORT_DEFAULT_SPINTIME=2
878};
879
880/* /proc/sys/dev/parport/parport n */
881enum {
882 DEV_PARPORT_SPINTIME=1,
883 DEV_PARPORT_BASE_ADDR=2,
884 DEV_PARPORT_IRQ=3,
885 DEV_PARPORT_DMA=4,
886 DEV_PARPORT_MODES=5,
887 DEV_PARPORT_DEVICES=6,
888 DEV_PARPORT_AUTOPROBE=16
889};
890
891/* /proc/sys/dev/parport/parport n/devices/ */
892enum {
893 DEV_PARPORT_DEVICES_ACTIVE=-3,
894};
895
896/* /proc/sys/dev/parport/parport n/devices/device n */
897enum {
898 DEV_PARPORT_DEVICE_TIMESLICE=1,
899};
900
901/* /proc/sys/dev/mac_hid */
902enum {
903 DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1,
904 DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2,
905 DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3,
906 DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4,
907 DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5,
908 DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6
909};
910
911/* /proc/sys/dev/scsi */
912enum {
913 DEV_SCSI_LOGGING_LEVEL=1,
914};
915
8c702e16
CM		 916/* /proc/sys/dev/ipmi */
917enum {
918 DEV_IPMI_POWEROFF_POWERCYCLE=1,
919};
920
1da177e4
LT		 921/* /proc/sys/abi */
922enum
923{
924 ABI_DEFHANDLER_COFF=1, /* default handler for coff binaries */
925 ABI_DEFHANDLER_ELF=2, /* default handler for ELF binaries */
926 ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */
927 ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */
928 ABI_TRACE=5, /* tracing flags */
929 ABI_FAKE_UTSNAME=6, /* fake target utsname information */
930};
931
932#ifdef __KERNEL__
d4ed803c 933#include <linux/list.h>
1da177e4 934
805b5d5e 935/* For the /proc/sys support */
1ff007eb 936struct ctl_table;
e51b6ba0 937struct nsproxy;
d7321cd6
PE		 938struct ctl_table_root;
939
73455092
AV		 940struct ctl_table_set {
941 struct list_head list;
942 struct ctl_table_set *parent;
943 int (*is_seen)(struct ctl_table_set *);
944};
945
946extern void setup_sysctl_set(struct ctl_table_set *p,
947 struct ctl_table_set *parent,
948 int (*is_seen)(struct ctl_table_set *));
949
f7e6ced4
AV		 950struct ctl_table_header;
951
952extern void sysctl_head_get(struct ctl_table_header *);
953extern void sysctl_head_put(struct ctl_table_header *);
9043476f 954extern int sysctl_is_seen(struct ctl_table_header *);
f7e6ced4 955extern struct ctl_table_header *sysctl_head_grab(struct ctl_table_header *);
805b5d5e 956extern struct ctl_table_header *sysctl_head_next(struct ctl_table_header *prev);
e51b6ba0
EB		 957extern struct ctl_table_header *__sysctl_head_next(struct nsproxy *namespaces,
958 struct ctl_table_header *prev);
805b5d5e 959extern void sysctl_head_finish(struct ctl_table_header *prev);
d7321cd6
PE		 960extern int sysctl_perm(struct ctl_table_root *root,
961 struct ctl_table *table, int op);
805b5d5e 962
1da177e4
LT		 963typedef struct ctl_table ctl_table;
964
8d65af78 965typedef int proc_handler (struct ctl_table *ctl, int write,
1da177e4
LT		 966 void __user *buffer, size_t *lenp, loff_t *ppos);
967
8d65af78 968extern int proc_dostring(struct ctl_table *, int,
1da177e4 969 void __user *, size_t *, loff_t *);
8d65af78 970extern int proc_dointvec(struct ctl_table *, int,
1da177e4 971 void __user *, size_t *, loff_t *);
8d65af78 972extern int proc_dointvec_minmax(struct ctl_table *, int,
1da177e4 973 void __user *, size_t *, loff_t *);
8d65af78 974extern int proc_dointvec_jiffies(struct ctl_table *, int,
1da177e4 975 void __user *, size_t *, loff_t *);
8d65af78 976extern int proc_dointvec_userhz_jiffies(struct ctl_table *, int,
1da177e4 977 void __user *, size_t *, loff_t *);
8d65af78 978extern int proc_dointvec_ms_jiffies(struct ctl_table *, int,
1da177e4 979 void __user *, size_t *, loff_t *);
8d65af78 980extern int proc_doulongvec_minmax(struct ctl_table *, int,
1da177e4 981 void __user *, size_t *, loff_t *);
d8217f07 982extern int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int,
8d65af78 983 void __user *, size_t *, loff_t *);
9f977fb7
OP		 984extern int proc_do_large_bitmap(struct ctl_table *, int,
985 void __user *, size_t *, loff_t *);
1da177e4 986
1da177e4
LT		 987/*
988 * Register a set of sysctl names by calling register_sysctl_table
2315ffa0
EB		 989 * with an initialised array of struct ctl_table's. An entry with
990 * NULL procname terminates the table. table->de will be
d99f160a 991 * set up by the registration and need not be initialised in advance.
1da177e4
LT		 992 *
993 * sysctl names can be mirrored automatically under /proc/sys. The
994 * procname supplied controls /proc naming.
995 *
996 * The table's mode will be honoured both for sys_sysctl(2) and
997 * proc-fs access.
998 *
999 * Leaf nodes in the sysctl tree will be represented by a single file
1000 * under /proc; non-leaf nodes will be represented by directories. A
1001 * null procname disables /proc mirroring at this node.
d99f160a 1002 *
1da177e4
LT		 1003 * sysctl(2) can automatically manage read and write requests through
1004 * the sysctl table. The data and maxlen fields of the ctl_table
1005 * struct enable minimal validation of the values being written to be
1006 * performed, and the mode field allows minimal authentication.
1007 *
1da177e4
LT		 1008 * There must be a proc_handler routine for any terminal nodes
1009 * mirrored under /proc/sys (non-terminals are handled by a built-in
1010 * directory handler). Several default handlers are available to
1011 * cover common cases.
1012 */
1013
1014/* A sysctl table is an array of struct ctl_table: */
1015struct ctl_table
1016{
1da177e4
LT		 1017 const char *procname; /* Text ID for /proc/sys, or zero */
1018 void *data;
1019 int maxlen;
1020 mode_t mode;
d8217f07
EB		 1021 struct ctl_table *child;
1022 struct ctl_table *parent; /* Automatically set */
1da177e4 1023 proc_handler *proc_handler; /* Callback for text formatting */
1da177e4
LT		 1024 void *extra1;
1025 void *extra2;
1026};
1027
e51b6ba0
EB		 1028struct ctl_table_root {
1029 struct list_head root_list;
73455092
AV		 1030 struct ctl_table_set default_set;
1031 struct ctl_table_set *(*lookup)(struct ctl_table_root *root,
e51b6ba0 1032 struct nsproxy *namespaces);
d7321cd6
PE		 1033 int (*permissions)(struct ctl_table_root *root,
1034 struct nsproxy *namespaces, struct ctl_table *table);
e51b6ba0
EB		 1035};
1036
1da177e4 1037/* struct ctl_table_header is used to maintain dynamic lists of
d8217f07 1038 struct ctl_table trees. */
1da177e4
LT		 1039struct ctl_table_header
1040{
dfef6dcd
AV		 1041 union {
1042 struct {
1043 struct ctl_table *ctl_table;
1044 struct list_head ctl_entry;
1045 int used;
1046 int count;
1047 };
1048 struct rcu_head rcu;
1049 };
330d57fb 1050 struct completion *unregistering;
23eb06de 1051 struct ctl_table *ctl_table_arg;
e51b6ba0 1052 struct ctl_table_root *root;
73455092 1053 struct ctl_table_set *set;
ae7edecc
AV		 1054 struct ctl_table *attached_by;
1055 struct ctl_table *attached_to;
1056 struct ctl_table_header *parent;
1da177e4
LT		 1057};
1058
29e796fd
EB		 1059/* struct ctl_path describes where in the hierarchy a table is added */
1060struct ctl_path {
1061 const char *procname;
29e796fd
EB		 1062};
1063
e51b6ba0
EB		 1064void register_sysctl_root(struct ctl_table_root *root);
1065struct ctl_table_header *__register_sysctl_paths(
1066 struct ctl_table_root *root, struct nsproxy *namespaces,
1067 const struct ctl_path *path, struct ctl_table *table);
d8217f07 1068struct ctl_table_header *register_sysctl_table(struct ctl_table * table);
29e796fd
EB		 1069struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path,
1070 struct ctl_table *table);
0b4d4147 1071
1da177e4 1072void unregister_sysctl_table(struct ctl_table_header * table);
e51b6ba0 1073int sysctl_check_table(struct nsproxy *namespaces, struct ctl_table *table);
1da177e4 1074
1da177e4
LT		 1075#endif /* __KERNEL__ */
1076
1077#endif /* _LINUX_SYSCTL_H */
Linux kernel - Deliverables
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