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/kernel.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 }; 486 487 /* /proc/sys/net/ipv4/netfilter */ 488 enum 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, 517 NET_IPV4_NF_CONNTRACK_CHECKSUM=28, 518 }; 519 520 /* /proc/sys/net/ipv6 */ 521 enum { 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 }; 533 534 enum { 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 }; 546 547 enum { 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, 565 NET_IPV6_ACCEPT_RA_DEFRTR=18, 566 NET_IPV6_ACCEPT_RA_PINFO=19, 567 NET_IPV6_ACCEPT_RA_RTR_PREF=20, 568 NET_IPV6_RTR_PROBE_INTERVAL=21, 569 NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN=22, 570 NET_IPV6_PROXY_NDP=23, 571 NET_IPV6_ACCEPT_SOURCE_ROUTE=25, 572 NET_IPV6_ACCEPT_RA_FROM_LOCAL=26, 573 NET_IPV6_ACCEPT_RA_RT_INFO_MIN_PLEN=27, 574 __NET_IPV6_MAX 575 }; 576 577 /* /proc/sys/net/ipv6/icmp */ 578 enum { 579 NET_IPV6_ICMP_RATELIMIT = 1, 580 NET_IPV6_ICMP_ECHO_IGNORE_ALL = 2 581 }; 582 583 /* /proc/sys/net/<protocol>/neigh/<dev> */ 584 enum { 585 NET_NEIGH_MCAST_SOLICIT=1, 586 NET_NEIGH_UCAST_SOLICIT=2, 587 NET_NEIGH_APP_SOLICIT=3, 588 NET_NEIGH_RETRANS_TIME=4, 589 NET_NEIGH_REACHABLE_TIME=5, 590 NET_NEIGH_DELAY_PROBE_TIME=6, 591 NET_NEIGH_GC_STALE_TIME=7, 592 NET_NEIGH_UNRES_QLEN=8, 593 NET_NEIGH_PROXY_QLEN=9, 594 NET_NEIGH_ANYCAST_DELAY=10, 595 NET_NEIGH_PROXY_DELAY=11, 596 NET_NEIGH_LOCKTIME=12, 597 NET_NEIGH_GC_INTERVAL=13, 598 NET_NEIGH_GC_THRESH1=14, 599 NET_NEIGH_GC_THRESH2=15, 600 NET_NEIGH_GC_THRESH3=16, 601 NET_NEIGH_RETRANS_TIME_MS=17, 602 NET_NEIGH_REACHABLE_TIME_MS=18, 603 }; 604 605 /* /proc/sys/net/dccp */ 606 enum { 607 NET_DCCP_DEFAULT=1, 608 }; 609 610 /* /proc/sys/net/ipx */ 611 enum { 612 NET_IPX_PPROP_BROADCASTING=1, 613 NET_IPX_FORWARDING=2 614 }; 615 616 /* /proc/sys/net/llc */ 617 enum { 618 NET_LLC2=1, 619 NET_LLC_STATION=2, 620 }; 621 622 /* /proc/sys/net/llc/llc2 */ 623 enum { 624 NET_LLC2_TIMEOUT=1, 625 }; 626 627 /* /proc/sys/net/llc/station */ 628 enum { 629 NET_LLC_STATION_ACK_TIMEOUT=1, 630 }; 631 632 /* /proc/sys/net/llc/llc2/timeout */ 633 enum { 634 NET_LLC2_ACK_TIMEOUT=1, 635 NET_LLC2_P_TIMEOUT=2, 636 NET_LLC2_REJ_TIMEOUT=3, 637 NET_LLC2_BUSY_TIMEOUT=4, 638 }; 639 640 /* /proc/sys/net/appletalk */ 641 enum { 642 NET_ATALK_AARP_EXPIRY_TIME=1, 643 NET_ATALK_AARP_TICK_TIME=2, 644 NET_ATALK_AARP_RETRANSMIT_LIMIT=3, 645 NET_ATALK_AARP_RESOLVE_TIME=4 646 }; 647 648 649 /* /proc/sys/net/netrom */ 650 enum { 651 NET_NETROM_DEFAULT_PATH_QUALITY=1, 652 NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2, 653 NET_NETROM_NETWORK_TTL_INITIALISER=3, 654 NET_NETROM_TRANSPORT_TIMEOUT=4, 655 NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5, 656 NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6, 657 NET_NETROM_TRANSPORT_BUSY_DELAY=7, 658 NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8, 659 NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9, 660 NET_NETROM_ROUTING_CONTROL=10, 661 NET_NETROM_LINK_FAILS_COUNT=11, 662 NET_NETROM_RESET=12 663 }; 664 665 /* /proc/sys/net/ax25 */ 666 enum { 667 NET_AX25_IP_DEFAULT_MODE=1, 668 NET_AX25_DEFAULT_MODE=2, 669 NET_AX25_BACKOFF_TYPE=3, 670 NET_AX25_CONNECT_MODE=4, 671 NET_AX25_STANDARD_WINDOW=5, 672 NET_AX25_EXTENDED_WINDOW=6, 673 NET_AX25_T1_TIMEOUT=7, 674 NET_AX25_T2_TIMEOUT=8, 675 NET_AX25_T3_TIMEOUT=9, 676 NET_AX25_IDLE_TIMEOUT=10, 677 NET_AX25_N2=11, 678 NET_AX25_PACLEN=12, 679 NET_AX25_PROTOCOL=13, 680 NET_AX25_DAMA_SLAVE_TIMEOUT=14 681 }; 682 683 /* /proc/sys/net/rose */ 684 enum { 685 NET_ROSE_RESTART_REQUEST_TIMEOUT=1, 686 NET_ROSE_CALL_REQUEST_TIMEOUT=2, 687 NET_ROSE_RESET_REQUEST_TIMEOUT=3, 688 NET_ROSE_CLEAR_REQUEST_TIMEOUT=4, 689 NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5, 690 NET_ROSE_ROUTING_CONTROL=6, 691 NET_ROSE_LINK_FAIL_TIMEOUT=7, 692 NET_ROSE_MAX_VCS=8, 693 NET_ROSE_WINDOW_SIZE=9, 694 NET_ROSE_NO_ACTIVITY_TIMEOUT=10 695 }; 696 697 /* /proc/sys/net/x25 */ 698 enum { 699 NET_X25_RESTART_REQUEST_TIMEOUT=1, 700 NET_X25_CALL_REQUEST_TIMEOUT=2, 701 NET_X25_RESET_REQUEST_TIMEOUT=3, 702 NET_X25_CLEAR_REQUEST_TIMEOUT=4, 703 NET_X25_ACK_HOLD_BACK_TIMEOUT=5, 704 NET_X25_FORWARD=6 705 }; 706 707 /* /proc/sys/net/token-ring */ 708 enum 709 { 710 NET_TR_RIF_TIMEOUT=1 711 }; 712 713 /* /proc/sys/net/decnet/ */ 714 enum { 715 NET_DECNET_NODE_TYPE = 1, 716 NET_DECNET_NODE_ADDRESS = 2, 717 NET_DECNET_NODE_NAME = 3, 718 NET_DECNET_DEFAULT_DEVICE = 4, 719 NET_DECNET_TIME_WAIT = 5, 720 NET_DECNET_DN_COUNT = 6, 721 NET_DECNET_DI_COUNT = 7, 722 NET_DECNET_DR_COUNT = 8, 723 NET_DECNET_DST_GC_INTERVAL = 9, 724 NET_DECNET_CONF = 10, 725 NET_DECNET_NO_FC_MAX_CWND = 11, 726 NET_DECNET_MEM = 12, 727 NET_DECNET_RMEM = 13, 728 NET_DECNET_WMEM = 14, 729 NET_DECNET_DEBUG_LEVEL = 255 730 }; 731 732 /* /proc/sys/net/decnet/conf/<dev> */ 733 enum { 734 NET_DECNET_CONF_LOOPBACK = -2, 735 NET_DECNET_CONF_DDCMP = -3, 736 NET_DECNET_CONF_PPP = -4, 737 NET_DECNET_CONF_X25 = -5, 738 NET_DECNET_CONF_GRE = -6, 739 NET_DECNET_CONF_ETHER = -7 740 741 /* ... and ifindex of devices */ 742 }; 743 744 /* /proc/sys/net/decnet/conf/<dev>/ */ 745 enum { 746 NET_DECNET_CONF_DEV_PRIORITY = 1, 747 NET_DECNET_CONF_DEV_T1 = 2, 748 NET_DECNET_CONF_DEV_T2 = 3, 749 NET_DECNET_CONF_DEV_T3 = 4, 750 NET_DECNET_CONF_DEV_FORWARDING = 5, 751 NET_DECNET_CONF_DEV_BLKSIZE = 6, 752 NET_DECNET_CONF_DEV_STATE = 7 753 }; 754 755 /* /proc/sys/net/sctp */ 756 enum { 757 NET_SCTP_RTO_INITIAL = 1, 758 NET_SCTP_RTO_MIN = 2, 759 NET_SCTP_RTO_MAX = 3, 760 NET_SCTP_RTO_ALPHA = 4, 761 NET_SCTP_RTO_BETA = 5, 762 NET_SCTP_VALID_COOKIE_LIFE = 6, 763 NET_SCTP_ASSOCIATION_MAX_RETRANS = 7, 764 NET_SCTP_PATH_MAX_RETRANS = 8, 765 NET_SCTP_MAX_INIT_RETRANSMITS = 9, 766 NET_SCTP_HB_INTERVAL = 10, 767 NET_SCTP_PRESERVE_ENABLE = 11, 768 NET_SCTP_MAX_BURST = 12, 769 NET_SCTP_ADDIP_ENABLE = 13, 770 NET_SCTP_PRSCTP_ENABLE = 14, 771 NET_SCTP_SNDBUF_POLICY = 15, 772 NET_SCTP_SACK_TIMEOUT = 16, 773 NET_SCTP_RCVBUF_POLICY = 17, 774 }; 775 776 /* /proc/sys/net/bridge */ 777 enum { 778 NET_BRIDGE_NF_CALL_ARPTABLES = 1, 779 NET_BRIDGE_NF_CALL_IPTABLES = 2, 780 NET_BRIDGE_NF_CALL_IP6TABLES = 3, 781 NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4, 782 NET_BRIDGE_NF_FILTER_PPPOE_TAGGED = 5, 783 }; 784 785 786 /* CTL_FS names: */ 787 enum 788 { 789 FS_NRINODE=1, /* int:current number of allocated inodes */ 790 FS_STATINODE=2, 791 FS_MAXINODE=3, /* int:maximum number of inodes that can be allocated */ 792 FS_NRDQUOT=4, /* int:current number of allocated dquots */ 793 FS_MAXDQUOT=5, /* int:maximum number of dquots that can be allocated */ 794 FS_NRFILE=6, /* int:current number of allocated filedescriptors */ 795 FS_MAXFILE=7, /* int:maximum number of filedescriptors that can be allocated */ 796 FS_DENTRY=8, 797 FS_NRSUPER=9, /* int:current number of allocated super_blocks */ 798 FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */ 799 FS_OVERFLOWUID=11, /* int: overflow UID */ 800 FS_OVERFLOWGID=12, /* int: overflow GID */ 801 FS_LEASES=13, /* int: leases enabled */ 802 FS_DIR_NOTIFY=14, /* int: directory notification enabled */ 803 FS_LEASE_TIME=15, /* int: maximum time to wait for a lease break */ 804 FS_DQSTATS=16, /* disc quota usage statistics and control */ 805 FS_XFS=17, /* struct: control xfs parameters */ 806 FS_AIO_NR=18, /* current system-wide number of aio requests */ 807 FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */ 808 FS_INOTIFY=20, /* inotify submenu */ 809 FS_OCFS2=988, /* ocfs2 */ 810 }; 811 812 /* /proc/sys/fs/quota/ */ 813 enum { 814 FS_DQ_LOOKUPS = 1, 815 FS_DQ_DROPS = 2, 816 FS_DQ_READS = 3, 817 FS_DQ_WRITES = 4, 818 FS_DQ_CACHE_HITS = 5, 819 FS_DQ_ALLOCATED = 6, 820 FS_DQ_FREE = 7, 821 FS_DQ_SYNCS = 8, 822 FS_DQ_WARNINGS = 9, 823 }; 824 825 /* CTL_DEBUG names: */ 826 827 /* CTL_DEV names: */ 828 enum { 829 DEV_CDROM=1, 830 DEV_HWMON=2, 831 DEV_PARPORT=3, 832 DEV_RAID=4, 833 DEV_MAC_HID=5, 834 DEV_SCSI=6, 835 DEV_IPMI=7, 836 }; 837 838 /* /proc/sys/dev/cdrom */ 839 enum { 840 DEV_CDROM_INFO=1, 841 DEV_CDROM_AUTOCLOSE=2, 842 DEV_CDROM_AUTOEJECT=3, 843 DEV_CDROM_DEBUG=4, 844 DEV_CDROM_LOCK=5, 845 DEV_CDROM_CHECK_MEDIA=6 846 }; 847 848 /* /proc/sys/dev/parport */ 849 enum { 850 DEV_PARPORT_DEFAULT=-3 851 }; 852 853 /* /proc/sys/dev/raid */ 854 enum { 855 DEV_RAID_SPEED_LIMIT_MIN=1, 856 DEV_RAID_SPEED_LIMIT_MAX=2 857 }; 858 859 /* /proc/sys/dev/parport/default */ 860 enum { 861 DEV_PARPORT_DEFAULT_TIMESLICE=1, 862 DEV_PARPORT_DEFAULT_SPINTIME=2 863 }; 864 865 /* /proc/sys/dev/parport/parport n */ 866 enum { 867 DEV_PARPORT_SPINTIME=1, 868 DEV_PARPORT_BASE_ADDR=2, 869 DEV_PARPORT_IRQ=3, 870 DEV_PARPORT_DMA=4, 871 DEV_PARPORT_MODES=5, 872 DEV_PARPORT_DEVICES=6, 873 DEV_PARPORT_AUTOPROBE=16 874 }; 875 876 /* /proc/sys/dev/parport/parport n/devices/ */ 877 enum { 878 DEV_PARPORT_DEVICES_ACTIVE=-3, 879 }; 880 881 /* /proc/sys/dev/parport/parport n/devices/device n */ 882 enum { 883 DEV_PARPORT_DEVICE_TIMESLICE=1, 884 }; 885 886 /* /proc/sys/dev/mac_hid */ 887 enum { 888 DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1, 889 DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2, 890 DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3, 891 DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4, 892 DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5, 893 DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6 894 }; 895 896 /* /proc/sys/dev/scsi */ 897 enum { 898 DEV_SCSI_LOGGING_LEVEL=1, 899 }; 900 901 /* /proc/sys/dev/ipmi */ 902 enum { 903 DEV_IPMI_POWEROFF_POWERCYCLE=1, 904 }; 905 906 /* /proc/sys/abi */ 907 enum 908 { 909 ABI_DEFHANDLER_COFF=1, /* default handler for coff binaries */ 910 ABI_DEFHANDLER_ELF=2, /* default handler for ELF binaries */ 911 ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */ 912 ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */ 913 ABI_TRACE=5, /* tracing flags */ 914 ABI_FAKE_UTSNAME=6, /* fake target utsname information */ 915 }; 916 917 918 #endif /* _UAPI_LINUX_SYSCTL_H */ 919
