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 };
157 
158 
159 
160 /* CTL_VM names: */
161 enum
162 {
163 	VM_UNUSED1=1,		/* was: struct: Set vm swapping control */
164 	VM_UNUSED2=2,		/* was; int: Linear or sqrt() swapout for hogs */
165 	VM_UNUSED3=3,		/* was: struct: Set free page thresholds */
166 	VM_UNUSED4=4,		/* Spare */
167 	VM_OVERCOMMIT_MEMORY=5,	/* Turn off the virtual memory safety limit */
168 	VM_UNUSED5=6,		/* was: struct: Set buffer memory thresholds */
169 	VM_UNUSED7=7,		/* was: struct: Set cache memory thresholds */
170 	VM_UNUSED8=8,		/* was: struct: Control kswapd behaviour */
171 	VM_UNUSED9=9,		/* was: struct: Set page table cache parameters */
172 	VM_PAGE_CLUSTER=10,	/* int: set number of pages to swap together */
173 	VM_DIRTY_BACKGROUND=11,	/* dirty_background_ratio */
174 	VM_DIRTY_RATIO=12,	/* dirty_ratio */
175 	VM_DIRTY_WB_CS=13,	/* dirty_writeback_centisecs */
176 	VM_DIRTY_EXPIRE_CS=14,	/* dirty_expire_centisecs */
177 	VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */
178 	VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */
179 	VM_PAGEBUF=17,		/* struct: Control pagebuf parameters */
180 	VM_HUGETLB_PAGES=18,	/* int: Number of available Huge Pages */
181 	VM_SWAPPINESS=19,	/* Tendency to steal mapped memory */
182 	VM_LOWMEM_RESERVE_RATIO=20,/* reservation ratio for lower memory zones */
183 	VM_MIN_FREE_KBYTES=21,	/* Minimum free kilobytes to maintain */
184 	VM_MAX_MAP_COUNT=22,	/* int: Maximum number of mmaps/address-space */
185 	VM_LAPTOP_MODE=23,	/* vm laptop mode */
186 	VM_BLOCK_DUMP=24,	/* block dump mode */
187 	VM_HUGETLB_GROUP=25,	/* permitted hugetlb group */
188 	VM_VFS_CACHE_PRESSURE=26, /* dcache/icache reclaim pressure */
189 	VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */
190 	VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */
191 	VM_DROP_PAGECACHE=29,	/* int: nuke lots of pagecache */
192 	VM_PERCPU_PAGELIST_FRACTION=30,/* int: fraction of pages in each percpu_pagelist */
193 	VM_ZONE_RECLAIM_MODE=31, /* reclaim local zone memory before going off node */
194 	VM_MIN_UNMAPPED=32,	/* Set min percent of unmapped pages */
195 	VM_PANIC_ON_OOM=33,	/* panic at out-of-memory */
196 	VM_VDSO_ENABLED=34,	/* map VDSO into new processes? */
197 	VM_MIN_SLAB=35,		 /* Percent pages ignored by zone reclaim */
198 };
199 
200 
201 /* CTL_NET names: */
202 enum
203 {
204 	NET_CORE=1,
205 	NET_ETHER=2,
206 	NET_802=3,
207 	NET_UNIX=4,
208 	NET_IPV4=5,
209 	NET_IPX=6,
210 	NET_ATALK=7,
211 	NET_NETROM=8,
212 	NET_AX25=9,
213 	NET_BRIDGE=10,
214 	NET_ROSE=11,
215 	NET_IPV6=12,
216 	NET_X25=13,
217 	NET_TR=14,
218 	NET_DECNET=15,
219 	NET_ECONET=16,
220 	NET_SCTP=17,
221 	NET_LLC=18,
222 	NET_NETFILTER=19,
223 	NET_DCCP=20,
224 	NET_IRDA=412,
225 };
226 
227 /* /proc/sys/kernel/random */
228 enum
229 {
230 	RANDOM_POOLSIZE=1,
231 	RANDOM_ENTROPY_COUNT=2,
232 	RANDOM_READ_THRESH=3,
233 	RANDOM_WRITE_THRESH=4,
234 	RANDOM_BOOT_ID=5,
235 	RANDOM_UUID=6
236 };
237 
238 /* /proc/sys/kernel/pty */
239 enum
240 {
241 	PTY_MAX=1,
242 	PTY_NR=2
243 };
244 
245 /* /proc/sys/bus/isa */
246 enum
247 {
248 	BUS_ISA_MEM_BASE=1,
249 	BUS_ISA_PORT_BASE=2,
250 	BUS_ISA_PORT_SHIFT=3
251 };
252 
253 /* /proc/sys/net/core */
254 enum
255 {
256 	NET_CORE_WMEM_MAX=1,
257 	NET_CORE_RMEM_MAX=2,
258 	NET_CORE_WMEM_DEFAULT=3,
259 	NET_CORE_RMEM_DEFAULT=4,
260 /* was	NET_CORE_DESTROY_DELAY */
261 	NET_CORE_MAX_BACKLOG=6,
262 	NET_CORE_FASTROUTE=7,
263 	NET_CORE_MSG_COST=8,
264 	NET_CORE_MSG_BURST=9,
265 	NET_CORE_OPTMEM_MAX=10,
266 	NET_CORE_HOT_LIST_LENGTH=11,
267 	NET_CORE_DIVERT_VERSION=12,
268 	NET_CORE_NO_CONG_THRESH=13,
269 	NET_CORE_NO_CONG=14,
270 	NET_CORE_LO_CONG=15,
271 	NET_CORE_MOD_CONG=16,
272 	NET_CORE_DEV_WEIGHT=17,
273 	NET_CORE_SOMAXCONN=18,
274 	NET_CORE_BUDGET=19,
275 	NET_CORE_AEVENT_ETIME=20,
276 	NET_CORE_AEVENT_RSEQTH=21,
277 	NET_CORE_WARNINGS=22,
278 };
279 
280 /* /proc/sys/net/ethernet */
281 
282 /* /proc/sys/net/802 */
283 
284 /* /proc/sys/net/unix */
285 
286 enum
287 {
288 	NET_UNIX_DESTROY_DELAY=1,
289 	NET_UNIX_DELETE_DELAY=2,
290 	NET_UNIX_MAX_DGRAM_QLEN=3,
291 };
292 
293 /* /proc/sys/net/netfilter */
294 enum
295 {
296 	NET_NF_CONNTRACK_MAX=1,
297 	NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
298 	NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
299 	NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
300 	NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
301 	NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
302 	NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
303 	NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
304 	NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
305 	NET_NF_CONNTRACK_UDP_TIMEOUT=10,
306 	NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
307 	NET_NF_CONNTRACK_ICMP_TIMEOUT=12,
308 	NET_NF_CONNTRACK_GENERIC_TIMEOUT=13,
309 	NET_NF_CONNTRACK_BUCKETS=14,
310 	NET_NF_CONNTRACK_LOG_INVALID=15,
311 	NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
312 	NET_NF_CONNTRACK_TCP_LOOSE=17,
313 	NET_NF_CONNTRACK_TCP_BE_LIBERAL=18,
314 	NET_NF_CONNTRACK_TCP_MAX_RETRANS=19,
315 	NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
316 	NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
317 	NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
318 	NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
319 	NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
320 	NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
321 	NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
322 	NET_NF_CONNTRACK_COUNT=27,
323 	NET_NF_CONNTRACK_ICMPV6_TIMEOUT=28,
324 	NET_NF_CONNTRACK_FRAG6_TIMEOUT=29,
325 	NET_NF_CONNTRACK_FRAG6_LOW_THRESH=30,
326 	NET_NF_CONNTRACK_FRAG6_HIGH_THRESH=31,
327 	NET_NF_CONNTRACK_CHECKSUM=32,
328 };
329 
330 /* /proc/sys/net/ipv4 */
331 enum
332 {
333 	/* v2.0 compatibile variables */
334 	NET_IPV4_FORWARD=8,
335 	NET_IPV4_DYNADDR=9,
336 
337 	NET_IPV4_CONF=16,
338 	NET_IPV4_NEIGH=17,
339 	NET_IPV4_ROUTE=18,
340 	NET_IPV4_FIB_HASH=19,
341 	NET_IPV4_NETFILTER=20,
342 
343 	NET_IPV4_TCP_TIMESTAMPS=33,
344 	NET_IPV4_TCP_WINDOW_SCALING=34,
345 	NET_IPV4_TCP_SACK=35,
346 	NET_IPV4_TCP_RETRANS_COLLAPSE=36,
347 	NET_IPV4_DEFAULT_TTL=37,
348 	NET_IPV4_AUTOCONFIG=38,
349 	NET_IPV4_NO_PMTU_DISC=39,
350 	NET_IPV4_TCP_SYN_RETRIES=40,
351 	NET_IPV4_IPFRAG_HIGH_THRESH=41,
352 	NET_IPV4_IPFRAG_LOW_THRESH=42,
353 	NET_IPV4_IPFRAG_TIME=43,
354 	NET_IPV4_TCP_MAX_KA_PROBES=44,
355 	NET_IPV4_TCP_KEEPALIVE_TIME=45,
356 	NET_IPV4_TCP_KEEPALIVE_PROBES=46,
357 	NET_IPV4_TCP_RETRIES1=47,
358 	NET_IPV4_TCP_RETRIES2=48,
359 	NET_IPV4_TCP_FIN_TIMEOUT=49,
360 	NET_IPV4_IP_MASQ_DEBUG=50,
361 	NET_TCP_SYNCOOKIES=51,
362 	NET_TCP_STDURG=52,
363 	NET_TCP_RFC1337=53,
364 	NET_TCP_SYN_TAILDROP=54,
365 	NET_TCP_MAX_SYN_BACKLOG=55,
366 	NET_IPV4_LOCAL_PORT_RANGE=56,
367 	NET_IPV4_ICMP_ECHO_IGNORE_ALL=57,
368 	NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS=58,
369 	NET_IPV4_ICMP_SOURCEQUENCH_RATE=59,
370 	NET_IPV4_ICMP_DESTUNREACH_RATE=60,
371 	NET_IPV4_ICMP_TIMEEXCEED_RATE=61,
372 	NET_IPV4_ICMP_PARAMPROB_RATE=62,
373 	NET_IPV4_ICMP_ECHOREPLY_RATE=63,
374 	NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES=64,
375 	NET_IPV4_IGMP_MAX_MEMBERSHIPS=65,
376 	NET_TCP_TW_RECYCLE=66,
377 	NET_IPV4_ALWAYS_DEFRAG=67,
378 	NET_IPV4_TCP_KEEPALIVE_INTVL=68,
379 	NET_IPV4_INET_PEER_THRESHOLD=69,
380 	NET_IPV4_INET_PEER_MINTTL=70,
381 	NET_IPV4_INET_PEER_MAXTTL=71,
382 	NET_IPV4_INET_PEER_GC_MINTIME=72,
383 	NET_IPV4_INET_PEER_GC_MAXTIME=73,
384 	NET_TCP_ORPHAN_RETRIES=74,
385 	NET_TCP_ABORT_ON_OVERFLOW=75,
386 	NET_TCP_SYNACK_RETRIES=76,
387 	NET_TCP_MAX_ORPHANS=77,
388 	NET_TCP_MAX_TW_BUCKETS=78,
389 	NET_TCP_FACK=79,
390 	NET_TCP_REORDERING=80,
391 	NET_TCP_ECN=81,
392 	NET_TCP_DSACK=82,
393 	NET_TCP_MEM=83,
394 	NET_TCP_WMEM=84,
395 	NET_TCP_RMEM=85,
396 	NET_TCP_APP_WIN=86,
397 	NET_TCP_ADV_WIN_SCALE=87,
398 	NET_IPV4_NONLOCAL_BIND=88,
399 	NET_IPV4_ICMP_RATELIMIT=89,
400 	NET_IPV4_ICMP_RATEMASK=90,
401 	NET_TCP_TW_REUSE=91,
402 	NET_TCP_FRTO=92,
403 	NET_TCP_LOW_LATENCY=93,
404 	NET_IPV4_IPFRAG_SECRET_INTERVAL=94,
405 	NET_IPV4_IGMP_MAX_MSF=96,
406 	NET_TCP_NO_METRICS_SAVE=97,
407 	NET_TCP_DEFAULT_WIN_SCALE=105,
408 	NET_TCP_MODERATE_RCVBUF=106,
409 	NET_TCP_TSO_WIN_DIVISOR=107,
410 	NET_TCP_BIC_BETA=108,
411 	NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109,
412 	NET_TCP_CONG_CONTROL=110,
413 	NET_TCP_ABC=111,
414 	NET_IPV4_IPFRAG_MAX_DIST=112,
415  	NET_TCP_MTU_PROBING=113,
416 	NET_TCP_BASE_MSS=114,
417 	NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS=115,
418 	NET_TCP_DMA_COPYBREAK=116,
419 	NET_TCP_SLOW_START_AFTER_IDLE=117,
420 	NET_CIPSOV4_CACHE_ENABLE=118,
421 	NET_CIPSOV4_CACHE_BUCKET_SIZE=119,
422 	NET_CIPSOV4_RBM_OPTFMT=120,
423 	NET_CIPSOV4_RBM_STRICTVALID=121,
424 	NET_TCP_AVAIL_CONG_CONTROL=122,
425 	NET_TCP_ALLOWED_CONG_CONTROL=123,
426 	NET_TCP_MAX_SSTHRESH=124,
427 	NET_TCP_FRTO_RESPONSE=125,
428 };
429 
430 enum {
431 	NET_IPV4_ROUTE_FLUSH=1,
432 	NET_IPV4_ROUTE_MIN_DELAY=2, /* obsolete since 2.6.25 */
433 	NET_IPV4_ROUTE_MAX_DELAY=3, /* obsolete since 2.6.25 */
434 	NET_IPV4_ROUTE_GC_THRESH=4,
435 	NET_IPV4_ROUTE_MAX_SIZE=5,
436 	NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
437 	NET_IPV4_ROUTE_GC_TIMEOUT=7,
438 	NET_IPV4_ROUTE_GC_INTERVAL=8, /* obsolete since 2.6.38 */
439 	NET_IPV4_ROUTE_REDIRECT_LOAD=9,
440 	NET_IPV4_ROUTE_REDIRECT_NUMBER=10,
441 	NET_IPV4_ROUTE_REDIRECT_SILENCE=11,
442 	NET_IPV4_ROUTE_ERROR_COST=12,
443 	NET_IPV4_ROUTE_ERROR_BURST=13,
444 	NET_IPV4_ROUTE_GC_ELASTICITY=14,
445 	NET_IPV4_ROUTE_MTU_EXPIRES=15,
446 	NET_IPV4_ROUTE_MIN_PMTU=16,
447 	NET_IPV4_ROUTE_MIN_ADVMSS=17,
448 	NET_IPV4_ROUTE_SECRET_INTERVAL=18,
449 	NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS=19,
450 };
451 
452 enum
453 {
454 	NET_PROTO_CONF_ALL=-2,
455 	NET_PROTO_CONF_DEFAULT=-3
456 
457 	/* And device ifindices ... */
458 };
459 
460 enum
461 {
462 	NET_IPV4_CONF_FORWARDING=1,
463 	NET_IPV4_CONF_MC_FORWARDING=2,
464 	NET_IPV4_CONF_PROXY_ARP=3,
465 	NET_IPV4_CONF_ACCEPT_REDIRECTS=4,
466 	NET_IPV4_CONF_SECURE_REDIRECTS=5,
467 	NET_IPV4_CONF_SEND_REDIRECTS=6,
468 	NET_IPV4_CONF_SHARED_MEDIA=7,
469 	NET_IPV4_CONF_RP_FILTER=8,
470 	NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE=9,
471 	NET_IPV4_CONF_BOOTP_RELAY=10,
472 	NET_IPV4_CONF_LOG_MARTIANS=11,
473 	NET_IPV4_CONF_TAG=12,
474 	NET_IPV4_CONF_ARPFILTER=13,
475 	NET_IPV4_CONF_MEDIUM_ID=14,
476 	NET_IPV4_CONF_NOXFRM=15,
477 	NET_IPV4_CONF_NOPOLICY=16,
478 	NET_IPV4_CONF_FORCE_IGMP_VERSION=17,
479 	NET_IPV4_CONF_ARP_ANNOUNCE=18,
480 	NET_IPV4_CONF_ARP_IGNORE=19,
481 	NET_IPV4_CONF_PROMOTE_SECONDARIES=20,
482 	NET_IPV4_CONF_ARP_ACCEPT=21,
483 	NET_IPV4_CONF_ARP_NOTIFY=22,
484 };
485 
486 /* /proc/sys/net/ipv4/netfilter */
487 enum
488 {
489 	NET_IPV4_NF_CONNTRACK_MAX=1,
490 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
491 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
492 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
493 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
494 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
495 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
496 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
497 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
498 	NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT=10,
499 	NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
500 	NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT=12,
501 	NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT=13,
502 	NET_IPV4_NF_CONNTRACK_BUCKETS=14,
503 	NET_IPV4_NF_CONNTRACK_LOG_INVALID=15,
504 	NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
505 	NET_IPV4_NF_CONNTRACK_TCP_LOOSE=17,
506 	NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL=18,
507 	NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS=19,
508  	NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
509  	NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
510  	NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
511  	NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
512  	NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
513  	NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
514  	NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
515 	NET_IPV4_NF_CONNTRACK_COUNT=27,
516 	NET_IPV4_NF_CONNTRACK_CHECKSUM=28,
517 };
518 
519 /* /proc/sys/net/ipv6 */
520 enum {
521 	NET_IPV6_CONF=16,
522 	NET_IPV6_NEIGH=17,
523 	NET_IPV6_ROUTE=18,
524 	NET_IPV6_ICMP=19,
525 	NET_IPV6_BINDV6ONLY=20,
526 	NET_IPV6_IP6FRAG_HIGH_THRESH=21,
527 	NET_IPV6_IP6FRAG_LOW_THRESH=22,
528 	NET_IPV6_IP6FRAG_TIME=23,
529 	NET_IPV6_IP6FRAG_SECRET_INTERVAL=24,
530 	NET_IPV6_MLD_MAX_MSF=25,
531 };
532 
533 enum {
534 	NET_IPV6_ROUTE_FLUSH=1,
535 	NET_IPV6_ROUTE_GC_THRESH=2,
536 	NET_IPV6_ROUTE_MAX_SIZE=3,
537 	NET_IPV6_ROUTE_GC_MIN_INTERVAL=4,
538 	NET_IPV6_ROUTE_GC_TIMEOUT=5,
539 	NET_IPV6_ROUTE_GC_INTERVAL=6,
540 	NET_IPV6_ROUTE_GC_ELASTICITY=7,
541 	NET_IPV6_ROUTE_MTU_EXPIRES=8,
542 	NET_IPV6_ROUTE_MIN_ADVMSS=9,
543 	NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS=10
544 };
545 
546 enum {
547 	NET_IPV6_FORWARDING=1,
548 	NET_IPV6_HOP_LIMIT=2,
549 	NET_IPV6_MTU=3,
550 	NET_IPV6_ACCEPT_RA=4,
551 	NET_IPV6_ACCEPT_REDIRECTS=5,
552 	NET_IPV6_AUTOCONF=6,
553 	NET_IPV6_DAD_TRANSMITS=7,
554 	NET_IPV6_RTR_SOLICITS=8,
555 	NET_IPV6_RTR_SOLICIT_INTERVAL=9,
556 	NET_IPV6_RTR_SOLICIT_DELAY=10,
557 	NET_IPV6_USE_TEMPADDR=11,
558 	NET_IPV6_TEMP_VALID_LFT=12,
559 	NET_IPV6_TEMP_PREFERED_LFT=13,
560 	NET_IPV6_REGEN_MAX_RETRY=14,
561 	NET_IPV6_MAX_DESYNC_FACTOR=15,
562 	NET_IPV6_MAX_ADDRESSES=16,
563 	NET_IPV6_FORCE_MLD_VERSION=17,
564 	NET_IPV6_ACCEPT_RA_DEFRTR=18,
565 	NET_IPV6_ACCEPT_RA_PINFO=19,
566 	NET_IPV6_ACCEPT_RA_RTR_PREF=20,
567 	NET_IPV6_RTR_PROBE_INTERVAL=21,
568 	NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN=22,
569 	NET_IPV6_PROXY_NDP=23,
570 	NET_IPV6_ACCEPT_SOURCE_ROUTE=25,
571 	NET_IPV6_ACCEPT_RA_FROM_LOCAL=26,
572 	NET_IPV6_ACCEPT_RA_RT_INFO_MIN_PLEN=27,
573 	__NET_IPV6_MAX
574 };
575 
576 /* /proc/sys/net/ipv6/icmp */
577 enum {
578 	NET_IPV6_ICMP_RATELIMIT = 1,
579 	NET_IPV6_ICMP_ECHO_IGNORE_ALL = 2
580 };
581 
582 /* /proc/sys/net/<protocol>/neigh/<dev> */
583 enum {
584 	NET_NEIGH_MCAST_SOLICIT=1,
585 	NET_NEIGH_UCAST_SOLICIT=2,
586 	NET_NEIGH_APP_SOLICIT=3,
587 	NET_NEIGH_RETRANS_TIME=4,
588 	NET_NEIGH_REACHABLE_TIME=5,
589 	NET_NEIGH_DELAY_PROBE_TIME=6,
590 	NET_NEIGH_GC_STALE_TIME=7,
591 	NET_NEIGH_UNRES_QLEN=8,
592 	NET_NEIGH_PROXY_QLEN=9,
593 	NET_NEIGH_ANYCAST_DELAY=10,
594 	NET_NEIGH_PROXY_DELAY=11,
595 	NET_NEIGH_LOCKTIME=12,
596 	NET_NEIGH_GC_INTERVAL=13,
597 	NET_NEIGH_GC_THRESH1=14,
598 	NET_NEIGH_GC_THRESH2=15,
599 	NET_NEIGH_GC_THRESH3=16,
600 	NET_NEIGH_RETRANS_TIME_MS=17,
601 	NET_NEIGH_REACHABLE_TIME_MS=18,
602 };
603 
604 /* /proc/sys/net/dccp */
605 enum {
606 	NET_DCCP_DEFAULT=1,
607 };
608 
609 /* /proc/sys/net/ipx */
610 enum {
611 	NET_IPX_PPROP_BROADCASTING=1,
612 	NET_IPX_FORWARDING=2
613 };
614 
615 /* /proc/sys/net/llc */
616 enum {
617 	NET_LLC2=1,
618 	NET_LLC_STATION=2,
619 };
620 
621 /* /proc/sys/net/llc/llc2 */
622 enum {
623 	NET_LLC2_TIMEOUT=1,
624 };
625 
626 /* /proc/sys/net/llc/station */
627 enum {
628 	NET_LLC_STATION_ACK_TIMEOUT=1,
629 };
630 
631 /* /proc/sys/net/llc/llc2/timeout */
632 enum {
633 	NET_LLC2_ACK_TIMEOUT=1,
634 	NET_LLC2_P_TIMEOUT=2,
635 	NET_LLC2_REJ_TIMEOUT=3,
636 	NET_LLC2_BUSY_TIMEOUT=4,
637 };
638 
639 /* /proc/sys/net/appletalk */
640 enum {
641 	NET_ATALK_AARP_EXPIRY_TIME=1,
642 	NET_ATALK_AARP_TICK_TIME=2,
643 	NET_ATALK_AARP_RETRANSMIT_LIMIT=3,
644 	NET_ATALK_AARP_RESOLVE_TIME=4
645 };
646 
647 
648 /* /proc/sys/net/netrom */
649 enum {
650 	NET_NETROM_DEFAULT_PATH_QUALITY=1,
651 	NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2,
652 	NET_NETROM_NETWORK_TTL_INITIALISER=3,
653 	NET_NETROM_TRANSPORT_TIMEOUT=4,
654 	NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5,
655 	NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6,
656 	NET_NETROM_TRANSPORT_BUSY_DELAY=7,
657 	NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8,
658 	NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9,
659 	NET_NETROM_ROUTING_CONTROL=10,
660 	NET_NETROM_LINK_FAILS_COUNT=11,
661 	NET_NETROM_RESET=12
662 };
663 
664 /* /proc/sys/net/ax25 */
665 enum {
666 	NET_AX25_IP_DEFAULT_MODE=1,
667 	NET_AX25_DEFAULT_MODE=2,
668 	NET_AX25_BACKOFF_TYPE=3,
669 	NET_AX25_CONNECT_MODE=4,
670 	NET_AX25_STANDARD_WINDOW=5,
671 	NET_AX25_EXTENDED_WINDOW=6,
672 	NET_AX25_T1_TIMEOUT=7,
673 	NET_AX25_T2_TIMEOUT=8,
674 	NET_AX25_T3_TIMEOUT=9,
675 	NET_AX25_IDLE_TIMEOUT=10,
676 	NET_AX25_N2=11,
677 	NET_AX25_PACLEN=12,
678 	NET_AX25_PROTOCOL=13,
679 	NET_AX25_DAMA_SLAVE_TIMEOUT=14
680 };
681 
682 /* /proc/sys/net/rose */
683 enum {
684 	NET_ROSE_RESTART_REQUEST_TIMEOUT=1,
685 	NET_ROSE_CALL_REQUEST_TIMEOUT=2,
686 	NET_ROSE_RESET_REQUEST_TIMEOUT=3,
687 	NET_ROSE_CLEAR_REQUEST_TIMEOUT=4,
688 	NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5,
689 	NET_ROSE_ROUTING_CONTROL=6,
690 	NET_ROSE_LINK_FAIL_TIMEOUT=7,
691 	NET_ROSE_MAX_VCS=8,
692 	NET_ROSE_WINDOW_SIZE=9,
693 	NET_ROSE_NO_ACTIVITY_TIMEOUT=10
694 };
695 
696 /* /proc/sys/net/x25 */
697 enum {
698 	NET_X25_RESTART_REQUEST_TIMEOUT=1,
699 	NET_X25_CALL_REQUEST_TIMEOUT=2,
700 	NET_X25_RESET_REQUEST_TIMEOUT=3,
701 	NET_X25_CLEAR_REQUEST_TIMEOUT=4,
702 	NET_X25_ACK_HOLD_BACK_TIMEOUT=5,
703 	NET_X25_FORWARD=6
704 };
705 
706 /* /proc/sys/net/token-ring */
707 enum
708 {
709 	NET_TR_RIF_TIMEOUT=1
710 };
711 
712 /* /proc/sys/net/decnet/ */
713 enum {
714 	NET_DECNET_NODE_TYPE = 1,
715 	NET_DECNET_NODE_ADDRESS = 2,
716 	NET_DECNET_NODE_NAME = 3,
717 	NET_DECNET_DEFAULT_DEVICE = 4,
718 	NET_DECNET_TIME_WAIT = 5,
719 	NET_DECNET_DN_COUNT = 6,
720 	NET_DECNET_DI_COUNT = 7,
721 	NET_DECNET_DR_COUNT = 8,
722 	NET_DECNET_DST_GC_INTERVAL = 9,
723 	NET_DECNET_CONF = 10,
724 	NET_DECNET_NO_FC_MAX_CWND = 11,
725 	NET_DECNET_MEM = 12,
726 	NET_DECNET_RMEM = 13,
727 	NET_DECNET_WMEM = 14,
728 	NET_DECNET_DEBUG_LEVEL = 255
729 };
730 
731 /* /proc/sys/net/decnet/conf/<dev> */
732 enum {
733 	NET_DECNET_CONF_LOOPBACK = -2,
734 	NET_DECNET_CONF_DDCMP = -3,
735 	NET_DECNET_CONF_PPP = -4,
736 	NET_DECNET_CONF_X25 = -5,
737 	NET_DECNET_CONF_GRE = -6,
738 	NET_DECNET_CONF_ETHER = -7
739 
740 	/* ... and ifindex of devices */
741 };
742 
743 /* /proc/sys/net/decnet/conf/<dev>/ */
744 enum {
745 	NET_DECNET_CONF_DEV_PRIORITY = 1,
746 	NET_DECNET_CONF_DEV_T1 = 2,
747 	NET_DECNET_CONF_DEV_T2 = 3,
748 	NET_DECNET_CONF_DEV_T3 = 4,
749 	NET_DECNET_CONF_DEV_FORWARDING = 5,
750 	NET_DECNET_CONF_DEV_BLKSIZE = 6,
751 	NET_DECNET_CONF_DEV_STATE = 7
752 };
753 
754 /* /proc/sys/net/sctp */
755 enum {
756 	NET_SCTP_RTO_INITIAL = 1,
757 	NET_SCTP_RTO_MIN     = 2,
758 	NET_SCTP_RTO_MAX     = 3,
759 	NET_SCTP_RTO_ALPHA   = 4,
760 	NET_SCTP_RTO_BETA    = 5,
761 	NET_SCTP_VALID_COOKIE_LIFE       =  6,
762 	NET_SCTP_ASSOCIATION_MAX_RETRANS =  7,
763 	NET_SCTP_PATH_MAX_RETRANS        =  8,
764 	NET_SCTP_MAX_INIT_RETRANSMITS    =  9,
765 	NET_SCTP_HB_INTERVAL             = 10,
766 	NET_SCTP_PRESERVE_ENABLE         = 11,
767 	NET_SCTP_MAX_BURST               = 12,
768 	NET_SCTP_ADDIP_ENABLE		 = 13,
769 	NET_SCTP_PRSCTP_ENABLE		 = 14,
770 	NET_SCTP_SNDBUF_POLICY		 = 15,
771 	NET_SCTP_SACK_TIMEOUT		 = 16,
772 	NET_SCTP_RCVBUF_POLICY		 = 17,
773 };
774 
775 /* /proc/sys/net/bridge */
776 enum {
777 	NET_BRIDGE_NF_CALL_ARPTABLES = 1,
778 	NET_BRIDGE_NF_CALL_IPTABLES = 2,
779 	NET_BRIDGE_NF_CALL_IP6TABLES = 3,
780 	NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4,
781 	NET_BRIDGE_NF_FILTER_PPPOE_TAGGED = 5,
782 };
783 
784 
785 /* CTL_FS names: */
786 enum
787 {
788 	FS_NRINODE=1,	/* int:current number of allocated inodes */
789 	FS_STATINODE=2,
790 	FS_MAXINODE=3,	/* int:maximum number of inodes that can be allocated */
791 	FS_NRDQUOT=4,	/* int:current number of allocated dquots */
792 	FS_MAXDQUOT=5,	/* int:maximum number of dquots that can be allocated */
793 	FS_NRFILE=6,	/* int:current number of allocated filedescriptors */
794 	FS_MAXFILE=7,	/* int:maximum number of filedescriptors that can be allocated */
795 	FS_DENTRY=8,
796 	FS_NRSUPER=9,	/* int:current number of allocated super_blocks */
797 	FS_MAXSUPER=10,	/* int:maximum number of super_blocks that can be allocated */
798 	FS_OVERFLOWUID=11,	/* int: overflow UID */
799 	FS_OVERFLOWGID=12,	/* int: overflow GID */
800 	FS_LEASES=13,	/* int: leases enabled */
801 	FS_DIR_NOTIFY=14,	/* int: directory notification enabled */
802 	FS_LEASE_TIME=15,	/* int: maximum time to wait for a lease break */
803 	FS_DQSTATS=16,	/* disc quota usage statistics and control */
804 	FS_XFS=17,	/* struct: control xfs parameters */
805 	FS_AIO_NR=18,	/* current system-wide number of aio requests */
806 	FS_AIO_MAX_NR=19,	/* system-wide maximum number of aio requests */
807 	FS_INOTIFY=20,	/* inotify submenu */
808 	FS_OCFS2=988,	/* ocfs2 */
809 };
810 
811 /* /proc/sys/fs/quota/ */
812 enum {
813 	FS_DQ_LOOKUPS = 1,
814 	FS_DQ_DROPS = 2,
815 	FS_DQ_READS = 3,
816 	FS_DQ_WRITES = 4,
817 	FS_DQ_CACHE_HITS = 5,
818 	FS_DQ_ALLOCATED = 6,
819 	FS_DQ_FREE = 7,
820 	FS_DQ_SYNCS = 8,
821 	FS_DQ_WARNINGS = 9,
822 };
823 
824 /* CTL_DEBUG names: */
825 
826 /* CTL_DEV names: */
827 enum {
828 	DEV_CDROM=1,
829 	DEV_HWMON=2,
830 	DEV_PARPORT=3,
831 	DEV_RAID=4,
832 	DEV_MAC_HID=5,
833 	DEV_SCSI=6,
834 	DEV_IPMI=7,
835 };
836 
837 /* /proc/sys/dev/cdrom */
838 enum {
839 	DEV_CDROM_INFO=1,
840 	DEV_CDROM_AUTOCLOSE=2,
841 	DEV_CDROM_AUTOEJECT=3,
842 	DEV_CDROM_DEBUG=4,
843 	DEV_CDROM_LOCK=5,
844 	DEV_CDROM_CHECK_MEDIA=6
845 };
846 
847 /* /proc/sys/dev/parport */
848 enum {
849 	DEV_PARPORT_DEFAULT=-3
850 };
851 
852 /* /proc/sys/dev/raid */
853 enum {
854 	DEV_RAID_SPEED_LIMIT_MIN=1,
855 	DEV_RAID_SPEED_LIMIT_MAX=2
856 };
857 
858 /* /proc/sys/dev/parport/default */
859 enum {
860 	DEV_PARPORT_DEFAULT_TIMESLICE=1,
861 	DEV_PARPORT_DEFAULT_SPINTIME=2
862 };
863 
864 /* /proc/sys/dev/parport/parport n */
865 enum {
866 	DEV_PARPORT_SPINTIME=1,
867 	DEV_PARPORT_BASE_ADDR=2,
868 	DEV_PARPORT_IRQ=3,
869 	DEV_PARPORT_DMA=4,
870 	DEV_PARPORT_MODES=5,
871 	DEV_PARPORT_DEVICES=6,
872 	DEV_PARPORT_AUTOPROBE=16
873 };
874 
875 /* /proc/sys/dev/parport/parport n/devices/ */
876 enum {
877 	DEV_PARPORT_DEVICES_ACTIVE=-3,
878 };
879 
880 /* /proc/sys/dev/parport/parport n/devices/device n */
881 enum {
882 	DEV_PARPORT_DEVICE_TIMESLICE=1,
883 };
884 
885 /* /proc/sys/dev/mac_hid */
886 enum {
887 	DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1,
888 	DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2,
889 	DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3,
890 	DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4,
891 	DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5,
892 	DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6
893 };
894 
895 /* /proc/sys/dev/scsi */
896 enum {
897 	DEV_SCSI_LOGGING_LEVEL=1,
898 };
899 
900 /* /proc/sys/dev/ipmi */
901 enum {
902 	DEV_IPMI_POWEROFF_POWERCYCLE=1,
903 };
904 
905 /* /proc/sys/abi */
906 enum
907 {
908 	ABI_DEFHANDLER_COFF=1,	/* default handler for coff binaries */
909 	ABI_DEFHANDLER_ELF=2, 	/* default handler for ELF binaries */
910 	ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */
911 	ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */
912 	ABI_TRACE=5,		/* tracing flags */
913 	ABI_FAKE_UTSNAME=6,	/* fake target utsname information */
914 };
915 
916 
917 #endif /* _UAPI_LINUX_SYSCTL_H */
918