1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3 * sysctl.h: General linux system control interface
4 *
5 * Begun 24 March 1995, Stephen Tweedie
6 *
7 ****************************************************************
8 ****************************************************************
9 **
10 ** WARNING:
11 ** The values in this file are exported to user space via
12 ** the sysctl() binary interface. Do *NOT* change the
13 ** numbering of any existing values here, and do not change
14 ** any numbers within any one set of values. If you have to
15 ** redefine an existing interface, use a new number for it.
16 ** The kernel will then return -ENOTDIR to any application using
17 ** the old binary interface.
18 **
19 ****************************************************************
20 ****************************************************************
21 */
22
23 #ifndef _UAPI_LINUX_SYSCTL_H
24 #define _UAPI_LINUX_SYSCTL_H
25
26 #include <linux/const.h>
27 #include <linux/types.h>
28 #include <linux/compiler.h>
29
30 #define CTL_MAXNAME 10 /* how many path components do we allow in a
31 call to sysctl? In other words, what is
32 the largest acceptable value for the nlen
33 member of a struct __sysctl_args to have? */
34
35 struct __sysctl_args {
36 int __user *name;
37 int nlen;
38 void __user *oldval;
39 size_t __user *oldlenp;
40 void __user *newval;
41 size_t newlen;
42 unsigned long __unused[4];
43 };
44
45 /* Define sysctl names first */
46
47 /* Top-level names: */
48
49 enum
50 {
51 CTL_KERN=1, /* General kernel info and control */
52 CTL_VM=2, /* VM management */
53 CTL_NET=3, /* Networking */
54 CTL_PROC=4, /* removal breaks strace(1) compilation */
55 CTL_FS=5, /* Filesystems */
56 CTL_DEBUG=6, /* Debugging */
57 CTL_DEV=7, /* Devices */
58 CTL_BUS=8, /* Busses */
59 CTL_ABI=9, /* Binary emulation */
60 CTL_CPU=10, /* CPU stuff (speed scaling, etc) */
61 CTL_ARLAN=254, /* arlan wireless driver */
62 CTL_S390DBF=5677, /* s390 debug */
63 CTL_SUNRPC=7249, /* sunrpc debug */
64 CTL_PM=9899, /* frv power management */
65 CTL_FRV=9898, /* frv specific sysctls */
66 };
67
68 /* CTL_BUS names: */
69 enum
70 {
71 CTL_BUS_ISA=1 /* ISA */
72 };
73
74 /* /proc/sys/fs/inotify/ */
75 enum
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: */
83 enum
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, /* string: hostname */
92 KERN_DOMAINNAME=8, /* string: domainname */
93
94 KERN_PANIC=15, /* int: panic timeout */
95 KERN_REALROOTDEV=16, /* real root device to mount after initrd */
96
97 KERN_SPARC_REBOOT=21, /* reboot command on Sparc */
98 KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */
99 KERN_PRINTK=23, /* struct: control printk logging parameters */
100 KERN_NAMETRANS=24, /* Name translation */
101 KERN_PPC_HTABRECLAIM=25, /* turn htab reclaimation on/off on PPC */
102 KERN_PPC_ZEROPAGED=26, /* turn idle page zeroing on/off on PPC */
103 KERN_PPC_POWERSAVE_NAP=27, /* use nap mode for power saving */
104 KERN_MODPROBE=28, /* string: modprobe path */
105 KERN_SG_BIG_BUFF=29, /* int: sg driver reserved buffer size */
106 KERN_ACCT=30, /* BSD process accounting parameters */
107 KERN_PPC_L2CR=31, /* l2cr register on PPC */
108
109 KERN_RTSIGNR=32, /* Number of rt sigs queued */
110 KERN_RTSIGMAX=33, /* Max queuable */
111
112 KERN_SHMMAX=34, /* long: Maximum shared memory segment */
113 KERN_MSGMAX=35, /* int: Maximum size of a messege */
114 KERN_MSGMNB=36, /* int: Maximum message queue size */
115 KERN_MSGPOOL=37, /* int: Maximum system message pool size */
116 KERN_SYSRQ=38, /* int: Sysreq enable */
117 KERN_MAX_THREADS=39, /* int: Maximum nr of threads in the system */
118 KERN_RANDOM=40, /* Random driver */
119 KERN_SHMALL=41, /* int: Maximum size of shared memory */
120 KERN_MSGMNI=42, /* int: msg queue identifiers */
121 KERN_SEM=43, /* struct: sysv semaphore limits */
122 KERN_SPARC_STOP_A=44, /* int: Sparc Stop-A enable */
123 KERN_SHMMNI=45, /* int: shm array identifiers */
124 KERN_OVERFLOWUID=46, /* int: overflow UID */
125 KERN_OVERFLOWGID=47, /* int: overflow GID */
126 KERN_SHMPATH=48, /* string: path to shm fs */
127 KERN_HOTPLUG=49, /* string: path to uevent helper (deprecated) */
128 KERN_IEEE_EMULATION_WARNINGS=50, /* int: unimplemented ieee instructions */
129 KERN_S390_USER_DEBUG_LOGGING=51, /* int: dumps of user faults */
130 KERN_CORE_USES_PID=52, /* int: use core or core.%pid */
131 KERN_TAINTED=53, /* int: various kernel tainted flags */
132 KERN_CADPID=54, /* int: PID of the process to notify on CAD */
133 KERN_PIDMAX=55, /* int: PID # limit */
134 KERN_CORE_PATTERN=56, /* string: pattern for core-file names */
135 KERN_PANIC_ON_OOPS=57, /* int: whether we will panic on an oops */
136 KERN_HPPA_PWRSW=58, /* int: hppa soft-power enable */
137 KERN_HPPA_UNALIGNED=59, /* int: hppa unaligned-trap enable */
138 KERN_PRINTK_RATELIMIT=60, /* int: tune printk ratelimiting */
139 KERN_PRINTK_RATELIMIT_BURST=61, /* int: tune printk ratelimiting */
140 KERN_PTY=62, /* dir: pty driver */
141 KERN_NGROUPS_MAX=63, /* int: NGROUPS_MAX */
142 KERN_SPARC_SCONS_PWROFF=64, /* int: serial console power-off halt */
143 KERN_HZ_TIMER=65, /* int: hz timer on or off */
144 KERN_UNKNOWN_NMI_PANIC=66, /* int: unknown nmi panic flag */
145 KERN_BOOTLOADER_TYPE=67, /* int: boot loader type */
146 KERN_RANDOMIZE=68, /* int: randomize virtual address space */
147 KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */
148 KERN_SPIN_RETRY=70, /* int: number of spinlock retries */
149 KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */
150 KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */
151 KERN_COMPAT_LOG=73, /* int: print compat layer messages */
152 KERN_MAX_LOCK_DEPTH=74, /* int: rtmutex's maximum lock depth */
153 KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */
154 KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
155 KERN_PANIC_ON_WARN=77, /* int: call panic() in WARN() functions */
156 KERN_PANIC_PRINT=78, /* ulong: bitmask to print system info on panic */
157 };
158
159
160
161 /* CTL_VM names: */
162 enum
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 */
192 VM_DROP_PAGECACHE=29, /* int: nuke lots of pagecache */
193 VM_PERCPU_PAGELIST_FRACTION=30,/* int: fraction of pages in each percpu_pagelist */
194 VM_ZONE_RECLAIM_MODE=31, /* reclaim local zone memory before going off node */
195 VM_MIN_UNMAPPED=32, /* Set min percent of unmapped pages */
196 VM_PANIC_ON_OOM=33, /* panic at out-of-memory */
197 VM_VDSO_ENABLED=34, /* map VDSO into new processes? */
198 VM_MIN_SLAB=35, /* Percent pages ignored by node reclaim */
199 };
200
201
202 /* CTL_NET names: */
203 enum
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,
221 NET_SCTP=17,
222 NET_LLC=18,
223 NET_NETFILTER=19,
224 NET_DCCP=20,
225 NET_IRDA=412,
226 };
227
228 /* /proc/sys/kernel/random */
229 enum
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 */
240 enum
241 {
242 PTY_MAX=1,
243 PTY_NR=2
244 };
245
246 /* /proc/sys/bus/isa */
247 enum
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 */
255 enum
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,
275 NET_CORE_BUDGET=19,
276 NET_CORE_AEVENT_ETIME=20,
277 NET_CORE_AEVENT_RSEQTH=21,
278 NET_CORE_WARNINGS=22,
279 };
280
281 /* /proc/sys/net/ethernet */
282
283 /* /proc/sys/net/802 */
284
285 /* /proc/sys/net/unix */
286
287 enum
288 {
289 NET_UNIX_DESTROY_DELAY=1,
290 NET_UNIX_DELETE_DELAY=2,
291 NET_UNIX_MAX_DGRAM_QLEN=3,
292 };
293
294 /* /proc/sys/net/netfilter */
295 enum
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,
328 NET_NF_CONNTRACK_CHECKSUM=32,
329 };
330
331 /* /proc/sys/net/ipv4 */
332 enum
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,
406 NET_IPV4_IGMP_MAX_MSF=96,
407 NET_TCP_NO_METRICS_SAVE=97,
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,
412 NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109,
413 NET_TCP_CONG_CONTROL=110,
414 NET_TCP_ABC=111,
415 NET_IPV4_IPFRAG_MAX_DIST=112,
416 NET_TCP_MTU_PROBING=113,
417 NET_TCP_BASE_MSS=114,
418 NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS=115,
419 NET_TCP_DMA_COPYBREAK=116,
420 NET_TCP_SLOW_START_AFTER_IDLE=117,
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,
425 NET_TCP_AVAIL_CONG_CONTROL=122,
426 NET_TCP_ALLOWED_CONG_CONTROL=123,
427 NET_TCP_MAX_SSTHRESH=124,
428 NET_TCP_FRTO_RESPONSE=125,
429 };
430
431 enum {
432 NET_IPV4_ROUTE_FLUSH=1,
433 NET_IPV4_ROUTE_MIN_DELAY=2, /* obsolete since 2.6.25 */
434 NET_IPV4_ROUTE_MAX_DELAY=3, /* obsolete since 2.6.25 */
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, /* obsolete since 2.6.38 */
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
453 enum
454 {
455 NET_PROTO_CONF_ALL=-2,
456 NET_PROTO_CONF_DEFAULT=-3
457
458 /* And device ifindices ... */
459 };
460
461 enum
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,
482 NET_IPV4_CONF_PROMOTE_SECONDARIES=20,
483 NET_IPV4_CONF_ARP_ACCEPT=21,
484 NET_IPV4_CONF_ARP_NOTIFY=22,
485 NET_IPV4_CONF_ARP_EVICT_NOCARRIER=23,
486 };
487
488 /* /proc/sys/net/ipv4/netfilter */
489 enum
490 {
491 NET_IPV4_NF_CONNTRACK_MAX=1,
492 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
493 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
494 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
495 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
496 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
497 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
498 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
499 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
500 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT=10,
501 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
502 NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT=12,
503 NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT=13,
504 NET_IPV4_NF_CONNTRACK_BUCKETS=14,
505 NET_IPV4_NF_CONNTRACK_LOG_INVALID=15,
506 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
507 NET_IPV4_NF_CONNTRACK_TCP_LOOSE=17,
508 NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL=18,
509 NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS=19,
510 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
511 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
512 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
513 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
514 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
515 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
516 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
517 NET_IPV4_NF_CONNTRACK_COUNT=27,
518 NET_IPV4_NF_CONNTRACK_CHECKSUM=28,
519 };
520
521 /* /proc/sys/net/ipv6 */
522 enum {
523 NET_IPV6_CONF=16,
524 NET_IPV6_NEIGH=17,
525 NET_IPV6_ROUTE=18,
526 NET_IPV6_ICMP=19,
527 NET_IPV6_BINDV6ONLY=20,
528 NET_IPV6_IP6FRAG_HIGH_THRESH=21,
529 NET_IPV6_IP6FRAG_LOW_THRESH=22,
530 NET_IPV6_IP6FRAG_TIME=23,
531 NET_IPV6_IP6FRAG_SECRET_INTERVAL=24,
532 NET_IPV6_MLD_MAX_MSF=25,
533 };
534
535 enum {
536 NET_IPV6_ROUTE_FLUSH=1,
537 NET_IPV6_ROUTE_GC_THRESH=2,
538 NET_IPV6_ROUTE_MAX_SIZE=3,
539 NET_IPV6_ROUTE_GC_MIN_INTERVAL=4,
540 NET_IPV6_ROUTE_GC_TIMEOUT=5,
541 NET_IPV6_ROUTE_GC_INTERVAL=6,
542 NET_IPV6_ROUTE_GC_ELASTICITY=7,
543 NET_IPV6_ROUTE_MTU_EXPIRES=8,
544 NET_IPV6_ROUTE_MIN_ADVMSS=9,
545 NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS=10
546 };
547
548 enum {
549 NET_IPV6_FORWARDING=1,
550 NET_IPV6_HOP_LIMIT=2,
551 NET_IPV6_MTU=3,
552 NET_IPV6_ACCEPT_RA=4,
553 NET_IPV6_ACCEPT_REDIRECTS=5,
554 NET_IPV6_AUTOCONF=6,
555 NET_IPV6_DAD_TRANSMITS=7,
556 NET_IPV6_RTR_SOLICITS=8,
557 NET_IPV6_RTR_SOLICIT_INTERVAL=9,
558 NET_IPV6_RTR_SOLICIT_DELAY=10,
559 NET_IPV6_USE_TEMPADDR=11,
560 NET_IPV6_TEMP_VALID_LFT=12,
561 NET_IPV6_TEMP_PREFERED_LFT=13,
562 NET_IPV6_REGEN_MAX_RETRY=14,
563 NET_IPV6_MAX_DESYNC_FACTOR=15,
564 NET_IPV6_MAX_ADDRESSES=16,
565 NET_IPV6_FORCE_MLD_VERSION=17,
566 NET_IPV6_ACCEPT_RA_DEFRTR=18,
567 NET_IPV6_ACCEPT_RA_PINFO=19,
568 NET_IPV6_ACCEPT_RA_RTR_PREF=20,
569 NET_IPV6_RTR_PROBE_INTERVAL=21,
570 NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN=22,
571 NET_IPV6_PROXY_NDP=23,
572 NET_IPV6_ACCEPT_SOURCE_ROUTE=25,
573 NET_IPV6_ACCEPT_RA_FROM_LOCAL=26,
574 NET_IPV6_ACCEPT_RA_RT_INFO_MIN_PLEN=27,
575 NET_IPV6_RA_DEFRTR_METRIC=28,
576 __NET_IPV6_MAX
577 };
578
579 /* /proc/sys/net/ipv6/icmp */
580 enum {
581 NET_IPV6_ICMP_RATELIMIT = 1,
582 NET_IPV6_ICMP_ECHO_IGNORE_ALL = 2
583 };
584
585 /* /proc/sys/net/<protocol>/neigh/<dev> */
586 enum {
587 NET_NEIGH_MCAST_SOLICIT = 1,
588 NET_NEIGH_UCAST_SOLICIT = 2,
589 NET_NEIGH_APP_SOLICIT = 3,
590 NET_NEIGH_RETRANS_TIME = 4,
591 NET_NEIGH_REACHABLE_TIME = 5,
592 NET_NEIGH_DELAY_PROBE_TIME = 6,
593 NET_NEIGH_GC_STALE_TIME = 7,
594 NET_NEIGH_UNRES_QLEN = 8,
595 NET_NEIGH_PROXY_QLEN = 9,
596 NET_NEIGH_ANYCAST_DELAY = 10,
597 NET_NEIGH_PROXY_DELAY = 11,
598 NET_NEIGH_LOCKTIME = 12,
599 NET_NEIGH_GC_INTERVAL = 13,
600 NET_NEIGH_GC_THRESH1 = 14,
601 NET_NEIGH_GC_THRESH2 = 15,
602 NET_NEIGH_GC_THRESH3 = 16,
603 NET_NEIGH_RETRANS_TIME_MS = 17,
604 NET_NEIGH_REACHABLE_TIME_MS = 18,
605 NET_NEIGH_INTERVAL_PROBE_TIME_MS = 19,
606 };
607
608 /* /proc/sys/net/dccp */
609 enum {
610 NET_DCCP_DEFAULT=1,
611 };
612
613 /* /proc/sys/net/ipx */
614 enum {
615 NET_IPX_PPROP_BROADCASTING=1,
616 NET_IPX_FORWARDING=2
617 };
618
619 /* /proc/sys/net/llc */
620 enum {
621 NET_LLC2=1,
622 NET_LLC_STATION=2,
623 };
624
625 /* /proc/sys/net/llc/llc2 */
626 enum {
627 NET_LLC2_TIMEOUT=1,
628 };
629
630 /* /proc/sys/net/llc/station */
631 enum {
632 NET_LLC_STATION_ACK_TIMEOUT=1,
633 };
634
635 /* /proc/sys/net/llc/llc2/timeout */
636 enum {
637 NET_LLC2_ACK_TIMEOUT=1,
638 NET_LLC2_P_TIMEOUT=2,
639 NET_LLC2_REJ_TIMEOUT=3,
640 NET_LLC2_BUSY_TIMEOUT=4,
641 };
642
643 /* /proc/sys/net/appletalk */
644 enum {
645 NET_ATALK_AARP_EXPIRY_TIME=1,
646 NET_ATALK_AARP_TICK_TIME=2,
647 NET_ATALK_AARP_RETRANSMIT_LIMIT=3,
648 NET_ATALK_AARP_RESOLVE_TIME=4
649 };
650
651
652 /* /proc/sys/net/netrom */
653 enum {
654 NET_NETROM_DEFAULT_PATH_QUALITY=1,
655 NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2,
656 NET_NETROM_NETWORK_TTL_INITIALISER=3,
657 NET_NETROM_TRANSPORT_TIMEOUT=4,
658 NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5,
659 NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6,
660 NET_NETROM_TRANSPORT_BUSY_DELAY=7,
661 NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8,
662 NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9,
663 NET_NETROM_ROUTING_CONTROL=10,
664 NET_NETROM_LINK_FAILS_COUNT=11,
665 NET_NETROM_RESET=12
666 };
667
668 /* /proc/sys/net/ax25 */
669 enum {
670 NET_AX25_IP_DEFAULT_MODE=1,
671 NET_AX25_DEFAULT_MODE=2,
672 NET_AX25_BACKOFF_TYPE=3,
673 NET_AX25_CONNECT_MODE=4,
674 NET_AX25_STANDARD_WINDOW=5,
675 NET_AX25_EXTENDED_WINDOW=6,
676 NET_AX25_T1_TIMEOUT=7,
677 NET_AX25_T2_TIMEOUT=8,
678 NET_AX25_T3_TIMEOUT=9,
679 NET_AX25_IDLE_TIMEOUT=10,
680 NET_AX25_N2=11,
681 NET_AX25_PACLEN=12,
682 NET_AX25_PROTOCOL=13,
683 NET_AX25_DAMA_SLAVE_TIMEOUT=14
684 };
685
686 /* /proc/sys/net/rose */
687 enum {
688 NET_ROSE_RESTART_REQUEST_TIMEOUT=1,
689 NET_ROSE_CALL_REQUEST_TIMEOUT=2,
690 NET_ROSE_RESET_REQUEST_TIMEOUT=3,
691 NET_ROSE_CLEAR_REQUEST_TIMEOUT=4,
692 NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5,
693 NET_ROSE_ROUTING_CONTROL=6,
694 NET_ROSE_LINK_FAIL_TIMEOUT=7,
695 NET_ROSE_MAX_VCS=8,
696 NET_ROSE_WINDOW_SIZE=9,
697 NET_ROSE_NO_ACTIVITY_TIMEOUT=10
698 };
699
700 /* /proc/sys/net/x25 */
701 enum {
702 NET_X25_RESTART_REQUEST_TIMEOUT=1,
703 NET_X25_CALL_REQUEST_TIMEOUT=2,
704 NET_X25_RESET_REQUEST_TIMEOUT=3,
705 NET_X25_CLEAR_REQUEST_TIMEOUT=4,
706 NET_X25_ACK_HOLD_BACK_TIMEOUT=5,
707 NET_X25_FORWARD=6
708 };
709
710 /* /proc/sys/net/token-ring */
711 enum
712 {
713 NET_TR_RIF_TIMEOUT=1
714 };
715
716 /* /proc/sys/net/decnet/ */
717 enum {
718 NET_DECNET_NODE_TYPE = 1,
719 NET_DECNET_NODE_ADDRESS = 2,
720 NET_DECNET_NODE_NAME = 3,
721 NET_DECNET_DEFAULT_DEVICE = 4,
722 NET_DECNET_TIME_WAIT = 5,
723 NET_DECNET_DN_COUNT = 6,
724 NET_DECNET_DI_COUNT = 7,
725 NET_DECNET_DR_COUNT = 8,
726 NET_DECNET_DST_GC_INTERVAL = 9,
727 NET_DECNET_CONF = 10,
728 NET_DECNET_NO_FC_MAX_CWND = 11,
729 NET_DECNET_MEM = 12,
730 NET_DECNET_RMEM = 13,
731 NET_DECNET_WMEM = 14,
732 NET_DECNET_DEBUG_LEVEL = 255
733 };
734
735 /* /proc/sys/net/decnet/conf/<dev> */
736 enum {
737 NET_DECNET_CONF_LOOPBACK = -2,
738 NET_DECNET_CONF_DDCMP = -3,
739 NET_DECNET_CONF_PPP = -4,
740 NET_DECNET_CONF_X25 = -5,
741 NET_DECNET_CONF_GRE = -6,
742 NET_DECNET_CONF_ETHER = -7
743
744 /* ... and ifindex of devices */
745 };
746
747 /* /proc/sys/net/decnet/conf/<dev>/ */
748 enum {
749 NET_DECNET_CONF_DEV_PRIORITY = 1,
750 NET_DECNET_CONF_DEV_T1 = 2,
751 NET_DECNET_CONF_DEV_T2 = 3,
752 NET_DECNET_CONF_DEV_T3 = 4,
753 NET_DECNET_CONF_DEV_FORWARDING = 5,
754 NET_DECNET_CONF_DEV_BLKSIZE = 6,
755 NET_DECNET_CONF_DEV_STATE = 7
756 };
757
758 /* /proc/sys/net/sctp */
759 enum {
760 NET_SCTP_RTO_INITIAL = 1,
761 NET_SCTP_RTO_MIN = 2,
762 NET_SCTP_RTO_MAX = 3,
763 NET_SCTP_RTO_ALPHA = 4,
764 NET_SCTP_RTO_BETA = 5,
765 NET_SCTP_VALID_COOKIE_LIFE = 6,
766 NET_SCTP_ASSOCIATION_MAX_RETRANS = 7,
767 NET_SCTP_PATH_MAX_RETRANS = 8,
768 NET_SCTP_MAX_INIT_RETRANSMITS = 9,
769 NET_SCTP_HB_INTERVAL = 10,
770 NET_SCTP_PRESERVE_ENABLE = 11,
771 NET_SCTP_MAX_BURST = 12,
772 NET_SCTP_ADDIP_ENABLE = 13,
773 NET_SCTP_PRSCTP_ENABLE = 14,
774 NET_SCTP_SNDBUF_POLICY = 15,
775 NET_SCTP_SACK_TIMEOUT = 16,
776 NET_SCTP_RCVBUF_POLICY = 17,
777 };
778
779 /* /proc/sys/net/bridge */
780 enum {
781 NET_BRIDGE_NF_CALL_ARPTABLES = 1,
782 NET_BRIDGE_NF_CALL_IPTABLES = 2,
783 NET_BRIDGE_NF_CALL_IP6TABLES = 3,
784 NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4,
785 NET_BRIDGE_NF_FILTER_PPPOE_TAGGED = 5,
786 };
787
788
789 /* CTL_FS names: */
790 enum
791 {
792 FS_NRINODE=1, /* int:current number of allocated inodes */
793 FS_STATINODE=2,
794 FS_MAXINODE=3, /* int:maximum number of inodes that can be allocated */
795 FS_NRDQUOT=4, /* int:current number of allocated dquots */
796 FS_MAXDQUOT=5, /* int:maximum number of dquots that can be allocated */
797 FS_NRFILE=6, /* int:current number of allocated filedescriptors */
798 FS_MAXFILE=7, /* int:maximum number of filedescriptors that can be allocated */
799 FS_DENTRY=8,
800 FS_NRSUPER=9, /* int:current number of allocated super_blocks */
801 FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */
802 FS_OVERFLOWUID=11, /* int: overflow UID */
803 FS_OVERFLOWGID=12, /* int: overflow GID */
804 FS_LEASES=13, /* int: leases enabled */
805 FS_DIR_NOTIFY=14, /* int: directory notification enabled */
806 FS_LEASE_TIME=15, /* int: maximum time to wait for a lease break */
807 FS_DQSTATS=16, /* disc quota usage statistics and control */
808 FS_XFS=17, /* struct: control xfs parameters */
809 FS_AIO_NR=18, /* current system-wide number of aio requests */
810 FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */
811 FS_INOTIFY=20, /* inotify submenu */
812 FS_OCFS2=988, /* ocfs2 */
813 };
814
815 /* /proc/sys/fs/quota/ */
816 enum {
817 FS_DQ_LOOKUPS = 1,
818 FS_DQ_DROPS = 2,
819 FS_DQ_READS = 3,
820 FS_DQ_WRITES = 4,
821 FS_DQ_CACHE_HITS = 5,
822 FS_DQ_ALLOCATED = 6,
823 FS_DQ_FREE = 7,
824 FS_DQ_SYNCS = 8,
825 FS_DQ_WARNINGS = 9,
826 };
827
828 /* CTL_DEBUG names: */
829
830 /* CTL_DEV names: */
831 enum {
832 DEV_CDROM=1,
833 DEV_HWMON=2,
834 DEV_PARPORT=3,
835 DEV_RAID=4,
836 DEV_MAC_HID=5,
837 DEV_SCSI=6,
838 DEV_IPMI=7,
839 };
840
841 /* /proc/sys/dev/cdrom */
842 enum {
843 DEV_CDROM_INFO=1,
844 DEV_CDROM_AUTOCLOSE=2,
845 DEV_CDROM_AUTOEJECT=3,
846 DEV_CDROM_DEBUG=4,
847 DEV_CDROM_LOCK=5,
848 DEV_CDROM_CHECK_MEDIA=6
849 };
850
851 /* /proc/sys/dev/parport */
852 enum {
853 DEV_PARPORT_DEFAULT=-3
854 };
855
856 /* /proc/sys/dev/raid */
857 enum {
858 DEV_RAID_SPEED_LIMIT_MIN=1,
859 DEV_RAID_SPEED_LIMIT_MAX=2
860 };
861
862 /* /proc/sys/dev/parport/default */
863 enum {
864 DEV_PARPORT_DEFAULT_TIMESLICE=1,
865 DEV_PARPORT_DEFAULT_SPINTIME=2
866 };
867
868 /* /proc/sys/dev/parport/parport n */
869 enum {
870 DEV_PARPORT_SPINTIME=1,
871 DEV_PARPORT_BASE_ADDR=2,
872 DEV_PARPORT_IRQ=3,
873 DEV_PARPORT_DMA=4,
874 DEV_PARPORT_MODES=5,
875 DEV_PARPORT_DEVICES=6,
876 DEV_PARPORT_AUTOPROBE=16
877 };
878
879 /* /proc/sys/dev/parport/parport n/devices/ */
880 enum {
881 DEV_PARPORT_DEVICES_ACTIVE=-3,
882 };
883
884 /* /proc/sys/dev/parport/parport n/devices/device n */
885 enum {
886 DEV_PARPORT_DEVICE_TIMESLICE=1,
887 };
888
889 /* /proc/sys/dev/mac_hid */
890 enum {
891 DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1,
892 DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2,
893 DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3,
894 DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4,
895 DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5,
896 DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6
897 };
898
899 /* /proc/sys/dev/scsi */
900 enum {
901 DEV_SCSI_LOGGING_LEVEL=1,
902 };
903
904 /* /proc/sys/dev/ipmi */
905 enum {
906 DEV_IPMI_POWEROFF_POWERCYCLE=1,
907 };
908
909 /* /proc/sys/abi */
910 enum
911 {
912 ABI_DEFHANDLER_COFF=1, /* default handler for coff binaries */
913 ABI_DEFHANDLER_ELF=2, /* default handler for ELF binaries */
914 ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */
915 ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */
916 ABI_TRACE=5, /* tracing flags */
917 ABI_FAKE_UTSNAME=6, /* fake target utsname information */
918 };
919
920
921 #endif /* _UAPI_LINUX_SYSCTL_H */
922
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