1 /* 2 * sysctl.h: General linux system control interface 3 * 4 * Begun 24 March 1995, Stephen Tweedie 5 * 6 **************************************************************** 7 **************************************************************** 8 ** 9 ** WARNING: 10 ** The values in this file are exported to user space via 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 14 ** redefine an existing interface, use a new number for it. 15 ** The kernel will then return -ENOTDIR to any application using 16 ** the old binary interface. 17 ** 18 ** For new interfaces unless you really need a binary number 19 ** please use CTL_UNNUMBERED. 20 ** 21 **************************************************************** 22 **************************************************************** 23 */ 24 25 #ifndef _LINUX_SYSCTL_H 26 #define _LINUX_SYSCTL_H 27 28 #include <linux/kernel.h> 29 #include <linux/types.h> 30 31 struct file; 32 struct completion; 33 34 #define CTL_MAXNAME 10 /* how many path components do we allow in a 35 call to sysctl? In other words, what is 36 the largest acceptable value for the nlen 37 member of a struct __sysctl_args to have? */ 38 39 struct __sysctl_args { 40 int *name; 41 int nlen; 42 void *oldval; 43 size_t *oldlenp; 44 void *newval; 45 size_t newlen; 46 unsigned long __unused[4]; 47 }; 48 49 /* Define sysctl names first */ 50 51 /* Top-level names: */ 52 53 /* For internal pattern-matching use only: */ 54 55 enum 56 { 57 CTL_KERN=1, /* General kernel info and control */ 58 CTL_VM=2, /* VM management */ 59 CTL_NET=3, /* Networking */ 60 CTL_PROC=4, /* removal breaks strace(1) compilation */ 61 CTL_FS=5, /* Filesystems */ 62 CTL_DEBUG=6, /* Debugging */ 63 CTL_DEV=7, /* Devices */ 64 CTL_BUS=8, /* Busses */ 65 CTL_ABI=9, /* Binary emulation */ 66 CTL_CPU=10, /* CPU stuff (speed scaling, etc) */ 67 CTL_ARLAN=254, /* arlan wireless driver */ 68 CTL_S390DBF=5677, /* s390 debug */ 69 CTL_SUNRPC=7249, /* sunrpc debug */ 70 CTL_PM=9899, /* frv power management */ 71 CTL_FRV=9898, /* frv specific sysctls */ 72 }; 73 74 /* CTL_BUS names: */ 75 enum 76 { 77 CTL_BUS_ISA=1 /* ISA */ 78 }; 79 80 /* /proc/sys/fs/inotify/ */ 81 enum 82 { 83 INOTIFY_MAX_USER_INSTANCES=1, /* max instances per user */ 84 INOTIFY_MAX_USER_WATCHES=2, /* max watches per user */ 85 INOTIFY_MAX_QUEUED_EVENTS=3 /* max queued events per instance */ 86 }; 87 88 /* CTL_KERN names: */ 89 enum 90 { 91 KERN_OSTYPE=1, /* string: system version */ 92 KERN_OSRELEASE=2, /* string: system release */ 93 KERN_OSREV=3, /* int: system revision */ 94 KERN_VERSION=4, /* string: compile time info */ 95 KERN_SECUREMASK=5, /* struct: maximum rights mask */ 96 KERN_PROF=6, /* table: profiling information */ 97 KERN_NODENAME=7, 98 KERN_DOMAINNAME=8, 99 100 KERN_CAP_BSET=14, /* int: capability bounding set */ 101 KERN_PANIC=15, /* int: panic timeout */ 102 KERN_REALROOTDEV=16, /* real root device to mount after initrd */ 103 104 KERN_SPARC_REBOOT=21, /* reboot command on Sparc */ 105 KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */ 106 KERN_PRINTK=23, /* struct: control printk logging parameters */ 107 KERN_NAMETRANS=24, /* Name translation */ 108 KERN_PPC_HTABRECLAIM=25, /* turn htab reclaimation on/off on PPC */ 109 KERN_PPC_ZEROPAGED=26, /* turn idle page zeroing on/off on PPC */ 110 KERN_PPC_POWERSAVE_NAP=27, /* use nap mode for power saving */ 111 KERN_MODPROBE=28, 112 KERN_SG_BIG_BUFF=29, 113 KERN_ACCT=30, /* BSD process accounting parameters */ 114 KERN_PPC_L2CR=31, /* l2cr register on PPC */ 115 116 KERN_RTSIGNR=32, /* Number of rt sigs queued */ 117 KERN_RTSIGMAX=33, /* Max queuable */ 118 119 KERN_SHMMAX=34, /* long: Maximum shared memory segment */ 120 KERN_MSGMAX=35, /* int: Maximum size of a messege */ 121 KERN_MSGMNB=36, /* int: Maximum message queue size */ 122 KERN_MSGPOOL=37, /* int: Maximum system message pool size */ 123 KERN_SYSRQ=38, /* int: Sysreq enable */ 124 KERN_MAX_THREADS=39, /* int: Maximum nr of threads in the system */ 125 KERN_RANDOM=40, /* Random driver */ 126 KERN_SHMALL=41, /* int: Maximum size of shared memory */ 127 KERN_MSGMNI=42, /* int: msg queue identifiers */ 128 KERN_SEM=43, /* struct: sysv semaphore limits */ 129 KERN_SPARC_STOP_A=44, /* int: Sparc Stop-A enable */ 130 KERN_SHMMNI=45, /* int: shm array identifiers */ 131 KERN_OVERFLOWUID=46, /* int: overflow UID */ 132 KERN_OVERFLOWGID=47, /* int: overflow GID */ 133 KERN_SHMPATH=48, /* string: path to shm fs */ 134 KERN_HOTPLUG=49, /* string: path to uevent helper (deprecated) */ 135 KERN_IEEE_EMULATION_WARNINGS=50, /* int: unimplemented ieee instructions */ 136 KERN_S390_USER_DEBUG_LOGGING=51, /* int: dumps of user faults */ 137 KERN_CORE_USES_PID=52, /* int: use core or core.%pid */ 138 KERN_TAINTED=53, /* int: various kernel tainted flags */ 139 KERN_CADPID=54, /* int: PID of the process to notify on CAD */ 140 KERN_PIDMAX=55, /* int: PID # limit */ 141 KERN_CORE_PATTERN=56, /* string: pattern for core-file names */ 142 KERN_PANIC_ON_OOPS=57, /* int: whether we will panic on an oops */ 143 KERN_HPPA_PWRSW=58, /* int: hppa soft-power enable */ 144 KERN_HPPA_UNALIGNED=59, /* int: hppa unaligned-trap enable */ 145 KERN_PRINTK_RATELIMIT=60, /* int: tune printk ratelimiting */ 146 KERN_PRINTK_RATELIMIT_BURST=61, /* int: tune printk ratelimiting */ 147 KERN_PTY=62, /* dir: pty driver */ 148 KERN_NGROUPS_MAX=63, /* int: NGROUPS_MAX */ 149 KERN_SPARC_SCONS_PWROFF=64, /* int: serial console power-off halt */ 150 KERN_HZ_TIMER=65, /* int: hz timer on or off */ 151 KERN_UNKNOWN_NMI_PANIC=66, /* int: unknown nmi panic flag */ 152 KERN_BOOTLOADER_TYPE=67, /* int: boot loader type */ 153 KERN_RANDOMIZE=68, /* int: randomize virtual address space */ 154 KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */ 155 KERN_SPIN_RETRY=70, /* int: number of spinlock retries */ 156 KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */ 157 KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */ 158 KERN_COMPAT_LOG=73, /* int: print compat layer messages */ 159 KERN_MAX_LOCK_DEPTH=74, 160 KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */ 161 KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */ 162 }; 163 164 165 166 /* CTL_VM names: */ 167 enum 168 { 169 VM_UNUSED1=1, /* was: struct: Set vm swapping control */ 170 VM_UNUSED2=2, /* was; int: Linear or sqrt() swapout for hogs */ 171 VM_UNUSED3=3, /* was: struct: Set free page thresholds */ 172 VM_UNUSED4=4, /* Spare */ 173 VM_OVERCOMMIT_MEMORY=5, /* Turn off the virtual memory safety limit */ 174 VM_UNUSED5=6, /* was: struct: Set buffer memory thresholds */ 175 VM_UNUSED7=7, /* was: struct: Set cache memory thresholds */ 176 VM_UNUSED8=8, /* was: struct: Control kswapd behaviour */ 177 VM_UNUSED9=9, /* was: struct: Set page table cache parameters */ 178 VM_PAGE_CLUSTER=10, /* int: set number of pages to swap together */ 179 VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */ 180 VM_DIRTY_RATIO=12, /* dirty_ratio */ 181 VM_DIRTY_WB_CS=13, /* dirty_writeback_centisecs */ 182 VM_DIRTY_EXPIRE_CS=14, /* dirty_expire_centisecs */ 183 VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */ 184 VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */ 185 VM_PAGEBUF=17, /* struct: Control pagebuf parameters */ 186 VM_HUGETLB_PAGES=18, /* int: Number of available Huge Pages */ 187 VM_SWAPPINESS=19, /* Tendency to steal mapped memory */ 188 VM_LOWMEM_RESERVE_RATIO=20,/* reservation ratio for lower memory zones */ 189 VM_MIN_FREE_KBYTES=21, /* Minimum free kilobytes to maintain */ 190 VM_MAX_MAP_COUNT=22, /* int: Maximum number of mmaps/address-space */ 191 VM_LAPTOP_MODE=23, /* vm laptop mode */ 192 VM_BLOCK_DUMP=24, /* block dump mode */ 193 VM_HUGETLB_GROUP=25, /* permitted hugetlb group */ 194 VM_VFS_CACHE_PRESSURE=26, /* dcache/icache reclaim pressure */ 195 VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */ 196 VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */ 197 VM_DROP_PAGECACHE=29, /* int: nuke lots of pagecache */ 198 VM_PERCPU_PAGELIST_FRACTION=30,/* int: fraction of pages in each percpu_pagelist */ 199 VM_ZONE_RECLAIM_MODE=31, /* reclaim local zone memory before going off node */ 200 VM_MIN_UNMAPPED=32, /* Set min percent of unmapped pages */ 201 VM_PANIC_ON_OOM=33, /* panic at out-of-memory */ 202 VM_VDSO_ENABLED=34, /* map VDSO into new processes? */ 203 VM_MIN_SLAB=35, /* Percent pages ignored by zone reclaim */ 204 }; 205 206 207 /* CTL_NET names: */ 208 enum 209 { 210 NET_CORE=1, 211 NET_ETHER=2, 212 NET_802=3, 213 NET_UNIX=4, 214 NET_IPV4=5, 215 NET_IPX=6, 216 NET_ATALK=7, 217 NET_NETROM=8, 218 NET_AX25=9, 219 NET_BRIDGE=10, 220 NET_ROSE=11, 221 NET_IPV6=12, 222 NET_X25=13, 223 NET_TR=14, 224 NET_DECNET=15, 225 NET_ECONET=16, 226 NET_SCTP=17, 227 NET_LLC=18, 228 NET_NETFILTER=19, 229 NET_DCCP=20, 230 NET_IRDA=412, 231 }; 232 233 /* /proc/sys/kernel/random */ 234 enum 235 { 236 RANDOM_POOLSIZE=1, 237 RANDOM_ENTROPY_COUNT=2, 238 RANDOM_READ_THRESH=3, 239 RANDOM_WRITE_THRESH=4, 240 RANDOM_BOOT_ID=5, 241 RANDOM_UUID=6 242 }; 243 244 /* /proc/sys/kernel/pty */ 245 enum 246 { 247 PTY_MAX=1, 248 PTY_NR=2 249 }; 250 251 /* /proc/sys/bus/isa */ 252 enum 253 { 254 BUS_ISA_MEM_BASE=1, 255 BUS_ISA_PORT_BASE=2, 256 BUS_ISA_PORT_SHIFT=3 257 }; 258 259 /* /proc/sys/net/core */ 260 enum 261 { 262 NET_CORE_WMEM_MAX=1, 263 NET_CORE_RMEM_MAX=2, 264 NET_CORE_WMEM_DEFAULT=3, 265 NET_CORE_RMEM_DEFAULT=4, 266 /* was NET_CORE_DESTROY_DELAY */ 267 NET_CORE_MAX_BACKLOG=6, 268 NET_CORE_FASTROUTE=7, 269 NET_CORE_MSG_COST=8, 270 NET_CORE_MSG_BURST=9, 271 NET_CORE_OPTMEM_MAX=10, 272 NET_CORE_HOT_LIST_LENGTH=11, 273 NET_CORE_DIVERT_VERSION=12, 274 NET_CORE_NO_CONG_THRESH=13, 275 NET_CORE_NO_CONG=14, 276 NET_CORE_LO_CONG=15, 277 NET_CORE_MOD_CONG=16, 278 NET_CORE_DEV_WEIGHT=17, 279 NET_CORE_SOMAXCONN=18, 280 NET_CORE_BUDGET=19, 281 NET_CORE_AEVENT_ETIME=20, 282 NET_CORE_AEVENT_RSEQTH=21, 283 NET_CORE_WARNINGS=22, 284 }; 285 286 /* /proc/sys/net/ethernet */ 287 288 /* /proc/sys/net/802 */ 289 290 /* /proc/sys/net/unix */ 291 292 enum 293 { 294 NET_UNIX_DESTROY_DELAY=1, 295 NET_UNIX_DELETE_DELAY=2, 296 NET_UNIX_MAX_DGRAM_QLEN=3, 297 }; 298 299 /* /proc/sys/net/netfilter */ 300 enum 301 { 302 NET_NF_CONNTRACK_MAX=1, 303 NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2, 304 NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3, 305 NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4, 306 NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5, 307 NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6, 308 NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7, 309 NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8, 310 NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9, 311 NET_NF_CONNTRACK_UDP_TIMEOUT=10, 312 NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11, 313 NET_NF_CONNTRACK_ICMP_TIMEOUT=12, 314 NET_NF_CONNTRACK_GENERIC_TIMEOUT=13, 315 NET_NF_CONNTRACK_BUCKETS=14, 316 NET_NF_CONNTRACK_LOG_INVALID=15, 317 NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16, 318 NET_NF_CONNTRACK_TCP_LOOSE=17, 319 NET_NF_CONNTRACK_TCP_BE_LIBERAL=18, 320 NET_NF_CONNTRACK_TCP_MAX_RETRANS=19, 321 NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20, 322 NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21, 323 NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22, 324 NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23, 325 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24, 326 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25, 327 NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26, 328 NET_NF_CONNTRACK_COUNT=27, 329 NET_NF_CONNTRACK_ICMPV6_TIMEOUT=28, 330 NET_NF_CONNTRACK_FRAG6_TIMEOUT=29, 331 NET_NF_CONNTRACK_FRAG6_LOW_THRESH=30, 332 NET_NF_CONNTRACK_FRAG6_HIGH_THRESH=31, 333 NET_NF_CONNTRACK_CHECKSUM=32, 334 }; 335 336 /* /proc/sys/net/ipv4 */ 337 enum 338 { 339 /* v2.0 compatibile variables */ 340 NET_IPV4_FORWARD=8, 341 NET_IPV4_DYNADDR=9, 342 343 NET_IPV4_CONF=16, 344 NET_IPV4_NEIGH=17, 345 NET_IPV4_ROUTE=18, 346 NET_IPV4_FIB_HASH=19, 347 NET_IPV4_NETFILTER=20, 348 349 NET_IPV4_TCP_TIMESTAMPS=33, 350 NET_IPV4_TCP_WINDOW_SCALING=34, 351 NET_IPV4_TCP_SACK=35, 352 NET_IPV4_TCP_RETRANS_COLLAPSE=36, 353 NET_IPV4_DEFAULT_TTL=37, 354 NET_IPV4_AUTOCONFIG=38, 355 NET_IPV4_NO_PMTU_DISC=39, 356 NET_IPV4_TCP_SYN_RETRIES=40, 357 NET_IPV4_IPFRAG_HIGH_THRESH=41, 358 NET_IPV4_IPFRAG_LOW_THRESH=42, 359 NET_IPV4_IPFRAG_TIME=43, 360 NET_IPV4_TCP_MAX_KA_PROBES=44, 361 NET_IPV4_TCP_KEEPALIVE_TIME=45, 362 NET_IPV4_TCP_KEEPALIVE_PROBES=46, 363 NET_IPV4_TCP_RETRIES1=47, 364 NET_IPV4_TCP_RETRIES2=48, 365 NET_IPV4_TCP_FIN_TIMEOUT=49, 366 NET_IPV4_IP_MASQ_DEBUG=50, 367 NET_TCP_SYNCOOKIES=51, 368 NET_TCP_STDURG=52, 369 NET_TCP_RFC1337=53, 370 NET_TCP_SYN_TAILDROP=54, 371 NET_TCP_MAX_SYN_BACKLOG=55, 372 NET_IPV4_LOCAL_PORT_RANGE=56, 373 NET_IPV4_ICMP_ECHO_IGNORE_ALL=57, 374 NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS=58, 375 NET_IPV4_ICMP_SOURCEQUENCH_RATE=59, 376 NET_IPV4_ICMP_DESTUNREACH_RATE=60, 377 NET_IPV4_ICMP_TIMEEXCEED_RATE=61, 378 NET_IPV4_ICMP_PARAMPROB_RATE=62, 379 NET_IPV4_ICMP_ECHOREPLY_RATE=63, 380 NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES=64, 381 NET_IPV4_IGMP_MAX_MEMBERSHIPS=65, 382 NET_TCP_TW_RECYCLE=66, 383 NET_IPV4_ALWAYS_DEFRAG=67, 384 NET_IPV4_TCP_KEEPALIVE_INTVL=68, 385 NET_IPV4_INET_PEER_THRESHOLD=69, 386 NET_IPV4_INET_PEER_MINTTL=70, 387 NET_IPV4_INET_PEER_MAXTTL=71, 388 NET_IPV4_INET_PEER_GC_MINTIME=72, 389 NET_IPV4_INET_PEER_GC_MAXTIME=73, 390 NET_TCP_ORPHAN_RETRIES=74, 391 NET_TCP_ABORT_ON_OVERFLOW=75, 392 NET_TCP_SYNACK_RETRIES=76, 393 NET_TCP_MAX_ORPHANS=77, 394 NET_TCP_MAX_TW_BUCKETS=78, 395 NET_TCP_FACK=79, 396 NET_TCP_REORDERING=80, 397 NET_TCP_ECN=81, 398 NET_TCP_DSACK=82, 399 NET_TCP_MEM=83, 400 NET_TCP_WMEM=84, 401 NET_TCP_RMEM=85, 402 NET_TCP_APP_WIN=86, 403 NET_TCP_ADV_WIN_SCALE=87, 404 NET_IPV4_NONLOCAL_BIND=88, 405 NET_IPV4_ICMP_RATELIMIT=89, 406 NET_IPV4_ICMP_RATEMASK=90, 407 NET_TCP_TW_REUSE=91, 408 NET_TCP_FRTO=92, 409 NET_TCP_LOW_LATENCY=93, 410 NET_IPV4_IPFRAG_SECRET_INTERVAL=94, 411 NET_IPV4_IGMP_MAX_MSF=96, 412 NET_TCP_NO_METRICS_SAVE=97, 413 NET_TCP_DEFAULT_WIN_SCALE=105, 414 NET_TCP_MODERATE_RCVBUF=106, 415 NET_TCP_TSO_WIN_DIVISOR=107, 416 NET_TCP_BIC_BETA=108, 417 NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109, 418 NET_TCP_CONG_CONTROL=110, 419 NET_TCP_ABC=111, 420 NET_IPV4_IPFRAG_MAX_DIST=112, 421 NET_TCP_MTU_PROBING=113, 422 NET_TCP_BASE_MSS=114, 423 NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS=115, 424 NET_TCP_DMA_COPYBREAK=116, 425 NET_TCP_SLOW_START_AFTER_IDLE=117, 426 NET_CIPSOV4_CACHE_ENABLE=118, 427 NET_CIPSOV4_CACHE_BUCKET_SIZE=119, 428 NET_CIPSOV4_RBM_OPTFMT=120, 429 NET_CIPSOV4_RBM_STRICTVALID=121, 430 NET_TCP_AVAIL_CONG_CONTROL=122, 431 NET_TCP_ALLOWED_CONG_CONTROL=123, 432 NET_TCP_MAX_SSTHRESH=124, 433 NET_TCP_FRTO_RESPONSE=125, 434 }; 435 436 enum { 437 NET_IPV4_ROUTE_FLUSH=1, 438 NET_IPV4_ROUTE_MIN_DELAY=2, 439 NET_IPV4_ROUTE_MAX_DELAY=3, 440 NET_IPV4_ROUTE_GC_THRESH=4, 441 NET_IPV4_ROUTE_MAX_SIZE=5, 442 NET_IPV4_ROUTE_GC_MIN_INTERVAL=6, 443 NET_IPV4_ROUTE_GC_TIMEOUT=7, 444 NET_IPV4_ROUTE_GC_INTERVAL=8, 445 NET_IPV4_ROUTE_REDIRECT_LOAD=9, 446 NET_IPV4_ROUTE_REDIRECT_NUMBER=10, 447 NET_IPV4_ROUTE_REDIRECT_SILENCE=11, 448 NET_IPV4_ROUTE_ERROR_COST=12, 449 NET_IPV4_ROUTE_ERROR_BURST=13, 450 NET_IPV4_ROUTE_GC_ELASTICITY=14, 451 NET_IPV4_ROUTE_MTU_EXPIRES=15, 452 NET_IPV4_ROUTE_MIN_PMTU=16, 453 NET_IPV4_ROUTE_MIN_ADVMSS=17, 454 NET_IPV4_ROUTE_SECRET_INTERVAL=18, 455 NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS=19, 456 }; 457 458 enum 459 { 460 NET_PROTO_CONF_ALL=-2, 461 NET_PROTO_CONF_DEFAULT=-3 462 463 /* And device ifindices ... */ 464 }; 465 466 enum 467 { 468 NET_IPV4_CONF_FORWARDING=1, 469 NET_IPV4_CONF_MC_FORWARDING=2, 470 NET_IPV4_CONF_PROXY_ARP=3, 471 NET_IPV4_CONF_ACCEPT_REDIRECTS=4, 472 NET_IPV4_CONF_SECURE_REDIRECTS=5, 473 NET_IPV4_CONF_SEND_REDIRECTS=6, 474 NET_IPV4_CONF_SHARED_MEDIA=7, 475 NET_IPV4_CONF_RP_FILTER=8, 476 NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE=9, 477 NET_IPV4_CONF_BOOTP_RELAY=10, 478 NET_IPV4_CONF_LOG_MARTIANS=11, 479 NET_IPV4_CONF_TAG=12, 480 NET_IPV4_CONF_ARPFILTER=13, 481 NET_IPV4_CONF_MEDIUM_ID=14, 482 NET_IPV4_CONF_NOXFRM=15, 483 NET_IPV4_CONF_NOPOLICY=16, 484 NET_IPV4_CONF_FORCE_IGMP_VERSION=17, 485 NET_IPV4_CONF_ARP_ANNOUNCE=18, 486 NET_IPV4_CONF_ARP_IGNORE=19, 487 NET_IPV4_CONF_PROMOTE_SECONDARIES=20, 488 NET_IPV4_CONF_ARP_ACCEPT=21, 489 __NET_IPV4_CONF_MAX 490 }; 491 492 /* /proc/sys/net/ipv4/netfilter */ 493 enum 494 { 495 NET_IPV4_NF_CONNTRACK_MAX=1, 496 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2, 497 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3, 498 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4, 499 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5, 500 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6, 501 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7, 502 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8, 503 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9, 504 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT=10, 505 NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11, 506 NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT=12, 507 NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT=13, 508 NET_IPV4_NF_CONNTRACK_BUCKETS=14, 509 NET_IPV4_NF_CONNTRACK_LOG_INVALID=15, 510 NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16, 511 NET_IPV4_NF_CONNTRACK_TCP_LOOSE=17, 512 NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL=18, 513 NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS=19, 514 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20, 515 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21, 516 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22, 517 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23, 518 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24, 519 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25, 520 NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26, 521 NET_IPV4_NF_CONNTRACK_COUNT=27, 522 NET_IPV4_NF_CONNTRACK_CHECKSUM=28, 523 }; 524 525 /* /proc/sys/net/ipv6 */ 526 enum { 527 NET_IPV6_CONF=16, 528 NET_IPV6_NEIGH=17, 529 NET_IPV6_ROUTE=18, 530 NET_IPV6_ICMP=19, 531 NET_IPV6_BINDV6ONLY=20, 532 NET_IPV6_IP6FRAG_HIGH_THRESH=21, 533 NET_IPV6_IP6FRAG_LOW_THRESH=22, 534 NET_IPV6_IP6FRAG_TIME=23, 535 NET_IPV6_IP6FRAG_SECRET_INTERVAL=24, 536 NET_IPV6_MLD_MAX_MSF=25, 537 }; 538 539 enum { 540 NET_IPV6_ROUTE_FLUSH=1, 541 NET_IPV6_ROUTE_GC_THRESH=2, 542 NET_IPV6_ROUTE_MAX_SIZE=3, 543 NET_IPV6_ROUTE_GC_MIN_INTERVAL=4, 544 NET_IPV6_ROUTE_GC_TIMEOUT=5, 545 NET_IPV6_ROUTE_GC_INTERVAL=6, 546 NET_IPV6_ROUTE_GC_ELASTICITY=7, 547 NET_IPV6_ROUTE_MTU_EXPIRES=8, 548 NET_IPV6_ROUTE_MIN_ADVMSS=9, 549 NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS=10 550 }; 551 552 enum { 553 NET_IPV6_FORWARDING=1, 554 NET_IPV6_HOP_LIMIT=2, 555 NET_IPV6_MTU=3, 556 NET_IPV6_ACCEPT_RA=4, 557 NET_IPV6_ACCEPT_REDIRECTS=5, 558 NET_IPV6_AUTOCONF=6, 559 NET_IPV6_DAD_TRANSMITS=7, 560 NET_IPV6_RTR_SOLICITS=8, 561 NET_IPV6_RTR_SOLICIT_INTERVAL=9, 562 NET_IPV6_RTR_SOLICIT_DELAY=10, 563 NET_IPV6_USE_TEMPADDR=11, 564 NET_IPV6_TEMP_VALID_LFT=12, 565 NET_IPV6_TEMP_PREFERED_LFT=13, 566 NET_IPV6_REGEN_MAX_RETRY=14, 567 NET_IPV6_MAX_DESYNC_FACTOR=15, 568 NET_IPV6_MAX_ADDRESSES=16, 569 NET_IPV6_FORCE_MLD_VERSION=17, 570 NET_IPV6_ACCEPT_RA_DEFRTR=18, 571 NET_IPV6_ACCEPT_RA_PINFO=19, 572 NET_IPV6_ACCEPT_RA_RTR_PREF=20, 573 NET_IPV6_RTR_PROBE_INTERVAL=21, 574 NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN=22, 575 NET_IPV6_PROXY_NDP=23, 576 NET_IPV6_ACCEPT_SOURCE_ROUTE=25, 577 __NET_IPV6_MAX 578 }; 579 580 /* /proc/sys/net/ipv6/icmp */ 581 enum { 582 NET_IPV6_ICMP_RATELIMIT=1 583 }; 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_MAX 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 /* proc/sys/net/irda */ 789 enum { 790 NET_IRDA_DISCOVERY=1, 791 NET_IRDA_DEVNAME=2, 792 NET_IRDA_DEBUG=3, 793 NET_IRDA_FAST_POLL=4, 794 NET_IRDA_DISCOVERY_SLOTS=5, 795 NET_IRDA_DISCOVERY_TIMEOUT=6, 796 NET_IRDA_SLOT_TIMEOUT=7, 797 NET_IRDA_MAX_BAUD_RATE=8, 798 NET_IRDA_MIN_TX_TURN_TIME=9, 799 NET_IRDA_MAX_TX_DATA_SIZE=10, 800 NET_IRDA_MAX_TX_WINDOW=11, 801 NET_IRDA_MAX_NOREPLY_TIME=12, 802 NET_IRDA_WARN_NOREPLY_TIME=13, 803 NET_IRDA_LAP_KEEPALIVE_TIME=14, 804 }; 805 806 807 /* CTL_FS names: */ 808 enum 809 { 810 FS_NRINODE=1, /* int:current number of allocated inodes */ 811 FS_STATINODE=2, 812 FS_MAXINODE=3, /* int:maximum number of inodes that can be allocated */ 813 FS_NRDQUOT=4, /* int:current number of allocated dquots */ 814 FS_MAXDQUOT=5, /* int:maximum number of dquots that can be allocated */ 815 FS_NRFILE=6, /* int:current number of allocated filedescriptors */ 816 FS_MAXFILE=7, /* int:maximum number of filedescriptors that can be allocated */ 817 FS_DENTRY=8, 818 FS_NRSUPER=9, /* int:current number of allocated super_blocks */ 819 FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */ 820 FS_OVERFLOWUID=11, /* int: overflow UID */ 821 FS_OVERFLOWGID=12, /* int: overflow GID */ 822 FS_LEASES=13, /* int: leases enabled */ 823 FS_DIR_NOTIFY=14, /* int: directory notification enabled */ 824 FS_LEASE_TIME=15, /* int: maximum time to wait for a lease break */ 825 FS_DQSTATS=16, /* disc quota usage statistics and control */ 826 FS_XFS=17, /* struct: control xfs parameters */ 827 FS_AIO_NR=18, /* current system-wide number of aio requests */ 828 FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */ 829 FS_INOTIFY=20, /* inotify submenu */ 830 FS_OCFS2=988, /* ocfs2 */ 831 }; 832 833 /* /proc/sys/fs/quota/ */ 834 enum { 835 FS_DQ_LOOKUPS = 1, 836 FS_DQ_DROPS = 2, 837 FS_DQ_READS = 3, 838 FS_DQ_WRITES = 4, 839 FS_DQ_CACHE_HITS = 5, 840 FS_DQ_ALLOCATED = 6, 841 FS_DQ_FREE = 7, 842 FS_DQ_SYNCS = 8, 843 FS_DQ_WARNINGS = 9, 844 }; 845 846 /* CTL_DEBUG names: */ 847 848 /* CTL_DEV names: */ 849 enum { 850 DEV_CDROM=1, 851 DEV_HWMON=2, 852 DEV_PARPORT=3, 853 DEV_RAID=4, 854 DEV_MAC_HID=5, 855 DEV_SCSI=6, 856 DEV_IPMI=7, 857 }; 858 859 /* /proc/sys/dev/cdrom */ 860 enum { 861 DEV_CDROM_INFO=1, 862 DEV_CDROM_AUTOCLOSE=2, 863 DEV_CDROM_AUTOEJECT=3, 864 DEV_CDROM_DEBUG=4, 865 DEV_CDROM_LOCK=5, 866 DEV_CDROM_CHECK_MEDIA=6 867 }; 868 869 /* /proc/sys/dev/parport */ 870 enum { 871 DEV_PARPORT_DEFAULT=-3 872 }; 873 874 /* /proc/sys/dev/raid */ 875 enum { 876 DEV_RAID_SPEED_LIMIT_MIN=1, 877 DEV_RAID_SPEED_LIMIT_MAX=2 878 }; 879 880 /* /proc/sys/dev/parport/default */ 881 enum { 882 DEV_PARPORT_DEFAULT_TIMESLICE=1, 883 DEV_PARPORT_DEFAULT_SPINTIME=2 884 }; 885 886 /* /proc/sys/dev/parport/parport n */ 887 enum { 888 DEV_PARPORT_SPINTIME=1, 889 DEV_PARPORT_BASE_ADDR=2, 890 DEV_PARPORT_IRQ=3, 891 DEV_PARPORT_DMA=4, 892 DEV_PARPORT_MODES=5, 893 DEV_PARPORT_DEVICES=6, 894 DEV_PARPORT_AUTOPROBE=16 895 }; 896 897 /* /proc/sys/dev/parport/parport n/devices/ */ 898 enum { 899 DEV_PARPORT_DEVICES_ACTIVE=-3, 900 }; 901 902 /* /proc/sys/dev/parport/parport n/devices/device n */ 903 enum { 904 DEV_PARPORT_DEVICE_TIMESLICE=1, 905 }; 906 907 /* /proc/sys/dev/mac_hid */ 908 enum { 909 DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1, 910 DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2, 911 DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3, 912 DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4, 913 DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5, 914 DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6 915 }; 916 917 /* /proc/sys/dev/scsi */ 918 enum { 919 DEV_SCSI_LOGGING_LEVEL=1, 920 }; 921 922 /* /proc/sys/dev/ipmi */ 923 enum { 924 DEV_IPMI_POWEROFF_POWERCYCLE=1, 925 }; 926 927 /* /proc/sys/abi */ 928 enum 929 { 930 ABI_DEFHANDLER_COFF=1, /* default handler for coff binaries */ 931 ABI_DEFHANDLER_ELF=2, /* default handler for ELF binaries */ 932 ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */ 933 ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */ 934 ABI_TRACE=5, /* tracing flags */ 935 ABI_FAKE_UTSNAME=6, /* fake target utsname information */ 936 }; 937 938 939 940 #endif /* _LINUX_SYSCTL_H */ 941
