linux/include/linux/sysctl.h
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   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#include <linux/compiler.h>
  31
  32struct file;
  33struct completion;
  34
  35#define CTL_MAXNAME 10          /* how many path components do we allow in a
  36                                   call to sysctl?   In other words, what is
  37                                   the largest acceptable value for the nlen
  38                                   member of a struct __sysctl_args to have? */
  39
  40struct __sysctl_args {
  41        int __user *name;
  42        int nlen;
  43        void __user *oldval;
  44        size_t __user *oldlenp;
  45        void __user *newval;
  46        size_t newlen;
  47        unsigned long __unused[4];
  48};
  49
  50/* Define sysctl names first */
  51
  52/* Top-level names: */
  53
  54/* For internal pattern-matching use only: */
  55#ifdef __KERNEL__
  56#define CTL_NONE        0
  57#define CTL_UNNUMBERED  CTL_NONE        /* sysctl without a binary number */
  58#endif
  59
  60enum
  61{
  62        CTL_KERN=1,             /* General kernel info and control */
  63        CTL_VM=2,               /* VM management */
  64        CTL_NET=3,              /* Networking */
  65        CTL_PROC=4,             /* removal breaks strace(1) compilation */
  66        CTL_FS=5,               /* Filesystems */
  67        CTL_DEBUG=6,            /* Debugging */
  68        CTL_DEV=7,              /* Devices */
  69        CTL_BUS=8,              /* Busses */
  70        CTL_ABI=9,              /* Binary emulation */
  71        CTL_CPU=10,             /* CPU stuff (speed scaling, etc) */
  72        CTL_ARLAN=254,          /* arlan wireless driver */
  73        CTL_S390DBF=5677,       /* s390 debug */
  74        CTL_SUNRPC=7249,        /* sunrpc debug */
  75        CTL_PM=9899,            /* frv power management */
  76        CTL_FRV=9898,           /* frv specific sysctls */
  77};
  78
  79/* CTL_BUS names: */
  80enum
  81{
  82        CTL_BUS_ISA=1           /* ISA */
  83};
  84
  85/* /proc/sys/fs/inotify/ */
  86enum
  87{
  88        INOTIFY_MAX_USER_INSTANCES=1,   /* max instances per user */
  89        INOTIFY_MAX_USER_WATCHES=2,     /* max watches per user */
  90        INOTIFY_MAX_QUEUED_EVENTS=3     /* max queued events per instance */
  91};
  92
  93/* CTL_KERN names: */
  94enum
  95{
  96        KERN_OSTYPE=1,          /* string: system version */
  97        KERN_OSRELEASE=2,       /* string: system release */
  98        KERN_OSREV=3,           /* int: system revision */
  99        KERN_VERSION=4,         /* string: compile time info */
 100        KERN_SECUREMASK=5,      /* struct: maximum rights mask */
 101        KERN_PROF=6,            /* table: profiling information */
 102        KERN_NODENAME=7,
 103        KERN_DOMAINNAME=8,
 104
 105        KERN_PANIC=15,          /* int: panic timeout */
 106        KERN_REALROOTDEV=16,    /* real root device to mount after initrd */
 107
 108        KERN_SPARC_REBOOT=21,   /* reboot command on Sparc */
 109        KERN_CTLALTDEL=22,      /* int: allow ctl-alt-del to reboot */
 110        KERN_PRINTK=23,         /* struct: control printk logging parameters */
 111        KERN_NAMETRANS=24,      /* Name translation */
 112        KERN_PPC_HTABRECLAIM=25, /* turn htab reclaimation on/off on PPC */
 113        KERN_PPC_ZEROPAGED=26,  /* turn idle page zeroing on/off on PPC */
 114        KERN_PPC_POWERSAVE_NAP=27, /* use nap mode for power saving */
 115        KERN_MODPROBE=28,
 116        KERN_SG_BIG_BUFF=29,
 117        KERN_ACCT=30,           /* BSD process accounting parameters */
 118        KERN_PPC_L2CR=31,       /* l2cr register on PPC */
 119
 120        KERN_RTSIGNR=32,        /* Number of rt sigs queued */
 121        KERN_RTSIGMAX=33,       /* Max queuable */
 122        
 123        KERN_SHMMAX=34,         /* long: Maximum shared memory segment */
 124        KERN_MSGMAX=35,         /* int: Maximum size of a messege */
 125        KERN_MSGMNB=36,         /* int: Maximum message queue size */
 126        KERN_MSGPOOL=37,        /* int: Maximum system message pool size */
 127        KERN_SYSRQ=38,          /* int: Sysreq enable */
 128        KERN_MAX_THREADS=39,    /* int: Maximum nr of threads in the system */
 129        KERN_RANDOM=40,         /* Random driver */
 130        KERN_SHMALL=41,         /* int: Maximum size of shared memory */
 131        KERN_MSGMNI=42,         /* int: msg queue identifiers */
 132        KERN_SEM=43,            /* struct: sysv semaphore limits */
 133        KERN_SPARC_STOP_A=44,   /* int: Sparc Stop-A enable */
 134        KERN_SHMMNI=45,         /* int: shm array identifiers */
 135        KERN_OVERFLOWUID=46,    /* int: overflow UID */
 136        KERN_OVERFLOWGID=47,    /* int: overflow GID */
 137        KERN_SHMPATH=48,        /* string: path to shm fs */
 138        KERN_HOTPLUG=49,        /* string: path to uevent helper (deprecated) */
 139        KERN_IEEE_EMULATION_WARNINGS=50, /* int: unimplemented ieee instructions */
 140        KERN_S390_USER_DEBUG_LOGGING=51,  /* int: dumps of user faults */
 141        KERN_CORE_USES_PID=52,          /* int: use core or core.%pid */
 142        KERN_TAINTED=53,        /* int: various kernel tainted flags */
 143        KERN_CADPID=54,         /* int: PID of the process to notify on CAD */
 144        KERN_PIDMAX=55,         /* int: PID # limit */
 145        KERN_CORE_PATTERN=56,   /* string: pattern for core-file names */
 146        KERN_PANIC_ON_OOPS=57,  /* int: whether we will panic on an oops */
 147        KERN_HPPA_PWRSW=58,     /* int: hppa soft-power enable */
 148        KERN_HPPA_UNALIGNED=59, /* int: hppa unaligned-trap enable */
 149        KERN_PRINTK_RATELIMIT=60, /* int: tune printk ratelimiting */
 150        KERN_PRINTK_RATELIMIT_BURST=61, /* int: tune printk ratelimiting */
 151        KERN_PTY=62,            /* dir: pty driver */
 152        KERN_NGROUPS_MAX=63,    /* int: NGROUPS_MAX */
 153        KERN_SPARC_SCONS_PWROFF=64, /* int: serial console power-off halt */
 154        KERN_HZ_TIMER=65,       /* int: hz timer on or off */
 155        KERN_UNKNOWN_NMI_PANIC=66, /* int: unknown nmi panic flag */
 156        KERN_BOOTLOADER_TYPE=67, /* int: boot loader type */
 157        KERN_RANDOMIZE=68, /* int: randomize virtual address space */
 158        KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */
 159        KERN_SPIN_RETRY=70,     /* int: number of spinlock retries */
 160        KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */
 161        KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */
 162        KERN_COMPAT_LOG=73,     /* int: print compat layer  messages */
 163        KERN_MAX_LOCK_DEPTH=74,
 164        KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */
 165        KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
 166};
 167
 168
 169
 170/* CTL_VM names: */
 171enum
 172{
 173        VM_UNUSED1=1,           /* was: struct: Set vm swapping control */
 174        VM_UNUSED2=2,           /* was; int: Linear or sqrt() swapout for hogs */
 175        VM_UNUSED3=3,           /* was: struct: Set free page thresholds */
 176        VM_UNUSED4=4,           /* Spare */
 177        VM_OVERCOMMIT_MEMORY=5, /* Turn off the virtual memory safety limit */
 178        VM_UNUSED5=6,           /* was: struct: Set buffer memory thresholds */
 179        VM_UNUSED7=7,           /* was: struct: Set cache memory thresholds */
 180        VM_UNUSED8=8,           /* was: struct: Control kswapd behaviour */
 181        VM_UNUSED9=9,           /* was: struct: Set page table cache parameters */
 182        VM_PAGE_CLUSTER=10,     /* int: set number of pages to swap together */
 183        VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */
 184        VM_DIRTY_RATIO=12,      /* dirty_ratio */
 185        VM_DIRTY_WB_CS=13,      /* dirty_writeback_centisecs */
 186        VM_DIRTY_EXPIRE_CS=14,  /* dirty_expire_centisecs */
 187        VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */
 188        VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */
 189        VM_PAGEBUF=17,          /* struct: Control pagebuf parameters */
 190        VM_HUGETLB_PAGES=18,    /* int: Number of available Huge Pages */
 191        VM_SWAPPINESS=19,       /* Tendency to steal mapped memory */
 192        VM_LOWMEM_RESERVE_RATIO=20,/* reservation ratio for lower memory zones */
 193        VM_MIN_FREE_KBYTES=21,  /* Minimum free kilobytes to maintain */
 194        VM_MAX_MAP_COUNT=22,    /* int: Maximum number of mmaps/address-space */
 195        VM_LAPTOP_MODE=23,      /* vm laptop mode */
 196        VM_BLOCK_DUMP=24,       /* block dump mode */
 197        VM_HUGETLB_GROUP=25,    /* permitted hugetlb group */
 198        VM_VFS_CACHE_PRESSURE=26, /* dcache/icache reclaim pressure */
 199        VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */
 200        VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */
 201        VM_DROP_PAGECACHE=29,   /* int: nuke lots of pagecache */
 202        VM_PERCPU_PAGELIST_FRACTION=30,/* int: fraction of pages in each percpu_pagelist */
 203        VM_ZONE_RECLAIM_MODE=31, /* reclaim local zone memory before going off node */
 204        VM_MIN_UNMAPPED=32,     /* Set min percent of unmapped pages */
 205        VM_PANIC_ON_OOM=33,     /* panic at out-of-memory */
 206        VM_VDSO_ENABLED=34,     /* map VDSO into new processes? */
 207        VM_MIN_SLAB=35,          /* Percent pages ignored by zone reclaim */
 208};
 209
 210
 211/* CTL_NET names: */
 212enum
 213{
 214        NET_CORE=1,
 215        NET_ETHER=2,
 216        NET_802=3,
 217        NET_UNIX=4,
 218        NET_IPV4=5,
 219        NET_IPX=6,
 220        NET_ATALK=7,
 221        NET_NETROM=8,
 222        NET_AX25=9,
 223        NET_BRIDGE=10,
 224        NET_ROSE=11,
 225        NET_IPV6=12,
 226        NET_X25=13,
 227        NET_TR=14,
 228        NET_DECNET=15,
 229        NET_ECONET=16,
 230        NET_SCTP=17,
 231        NET_LLC=18,
 232        NET_NETFILTER=19,
 233        NET_DCCP=20,
 234        NET_IRDA=412,
 235};
 236
 237/* /proc/sys/kernel/random */
 238enum
 239{
 240        RANDOM_POOLSIZE=1,
 241        RANDOM_ENTROPY_COUNT=2,
 242        RANDOM_READ_THRESH=3,
 243        RANDOM_WRITE_THRESH=4,
 244        RANDOM_BOOT_ID=5,
 245        RANDOM_UUID=6
 246};
 247
 248/* /proc/sys/kernel/pty */
 249enum
 250{
 251        PTY_MAX=1,
 252        PTY_NR=2
 253};
 254
 255/* /proc/sys/bus/isa */
 256enum
 257{
 258        BUS_ISA_MEM_BASE=1,
 259        BUS_ISA_PORT_BASE=2,
 260        BUS_ISA_PORT_SHIFT=3
 261};
 262
 263/* /proc/sys/net/core */
 264enum
 265{
 266        NET_CORE_WMEM_MAX=1,
 267        NET_CORE_RMEM_MAX=2,
 268        NET_CORE_WMEM_DEFAULT=3,
 269        NET_CORE_RMEM_DEFAULT=4,
 270/* was  NET_CORE_DESTROY_DELAY */
 271        NET_CORE_MAX_BACKLOG=6,
 272        NET_CORE_FASTROUTE=7,
 273        NET_CORE_MSG_COST=8,
 274        NET_CORE_MSG_BURST=9,
 275        NET_CORE_OPTMEM_MAX=10,
 276        NET_CORE_HOT_LIST_LENGTH=11,
 277        NET_CORE_DIVERT_VERSION=12,
 278        NET_CORE_NO_CONG_THRESH=13,
 279        NET_CORE_NO_CONG=14,
 280        NET_CORE_LO_CONG=15,
 281        NET_CORE_MOD_CONG=16,
 282        NET_CORE_DEV_WEIGHT=17,
 283        NET_CORE_SOMAXCONN=18,
 284        NET_CORE_BUDGET=19,
 285        NET_CORE_AEVENT_ETIME=20,
 286        NET_CORE_AEVENT_RSEQTH=21,
 287        NET_CORE_WARNINGS=22,
 288};
 289
 290/* /proc/sys/net/ethernet */
 291
 292/* /proc/sys/net/802 */
 293
 294/* /proc/sys/net/unix */
 295
 296enum
 297{
 298        NET_UNIX_DESTROY_DELAY=1,
 299        NET_UNIX_DELETE_DELAY=2,
 300        NET_UNIX_MAX_DGRAM_QLEN=3,
 301};
 302
 303/* /proc/sys/net/netfilter */
 304enum
 305{
 306        NET_NF_CONNTRACK_MAX=1,
 307        NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
 308        NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
 309        NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
 310        NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
 311        NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
 312        NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
 313        NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
 314        NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
 315        NET_NF_CONNTRACK_UDP_TIMEOUT=10,
 316        NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
 317        NET_NF_CONNTRACK_ICMP_TIMEOUT=12,
 318        NET_NF_CONNTRACK_GENERIC_TIMEOUT=13,
 319        NET_NF_CONNTRACK_BUCKETS=14,
 320        NET_NF_CONNTRACK_LOG_INVALID=15,
 321        NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
 322        NET_NF_CONNTRACK_TCP_LOOSE=17,
 323        NET_NF_CONNTRACK_TCP_BE_LIBERAL=18,
 324        NET_NF_CONNTRACK_TCP_MAX_RETRANS=19,
 325        NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
 326        NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
 327        NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
 328        NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
 329        NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
 330        NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
 331        NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
 332        NET_NF_CONNTRACK_COUNT=27,
 333        NET_NF_CONNTRACK_ICMPV6_TIMEOUT=28,
 334        NET_NF_CONNTRACK_FRAG6_TIMEOUT=29,
 335        NET_NF_CONNTRACK_FRAG6_LOW_THRESH=30,
 336        NET_NF_CONNTRACK_FRAG6_HIGH_THRESH=31,
 337        NET_NF_CONNTRACK_CHECKSUM=32,
 338};
 339
 340/* /proc/sys/net/ipv4 */
 341enum
 342{
 343        /* v2.0 compatibile variables */
 344        NET_IPV4_FORWARD=8,
 345        NET_IPV4_DYNADDR=9,
 346
 347        NET_IPV4_CONF=16,
 348        NET_IPV4_NEIGH=17,
 349        NET_IPV4_ROUTE=18,
 350        NET_IPV4_FIB_HASH=19,
 351        NET_IPV4_NETFILTER=20,
 352
 353        NET_IPV4_TCP_TIMESTAMPS=33,
 354        NET_IPV4_TCP_WINDOW_SCALING=34,
 355        NET_IPV4_TCP_SACK=35,
 356        NET_IPV4_TCP_RETRANS_COLLAPSE=36,
 357        NET_IPV4_DEFAULT_TTL=37,
 358        NET_IPV4_AUTOCONFIG=38,
 359        NET_IPV4_NO_PMTU_DISC=39,
 360        NET_IPV4_TCP_SYN_RETRIES=40,
 361        NET_IPV4_IPFRAG_HIGH_THRESH=41,
 362        NET_IPV4_IPFRAG_LOW_THRESH=42,
 363        NET_IPV4_IPFRAG_TIME=43,
 364        NET_IPV4_TCP_MAX_KA_PROBES=44,
 365        NET_IPV4_TCP_KEEPALIVE_TIME=45,
 366        NET_IPV4_TCP_KEEPALIVE_PROBES=46,
 367        NET_IPV4_TCP_RETRIES1=47,
 368        NET_IPV4_TCP_RETRIES2=48,
 369        NET_IPV4_TCP_FIN_TIMEOUT=49,
 370        NET_IPV4_IP_MASQ_DEBUG=50,
 371        NET_TCP_SYNCOOKIES=51,
 372        NET_TCP_STDURG=52,
 373        NET_TCP_RFC1337=53,
 374        NET_TCP_SYN_TAILDROP=54,
 375        NET_TCP_MAX_SYN_BACKLOG=55,
 376        NET_IPV4_LOCAL_PORT_RANGE=56,
 377        NET_IPV4_ICMP_ECHO_IGNORE_ALL=57,
 378        NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS=58,
 379        NET_IPV4_ICMP_SOURCEQUENCH_RATE=59,
 380        NET_IPV4_ICMP_DESTUNREACH_RATE=60,
 381        NET_IPV4_ICMP_TIMEEXCEED_RATE=61,
 382        NET_IPV4_ICMP_PARAMPROB_RATE=62,
 383        NET_IPV4_ICMP_ECHOREPLY_RATE=63,
 384        NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES=64,
 385        NET_IPV4_IGMP_MAX_MEMBERSHIPS=65,
 386        NET_TCP_TW_RECYCLE=66,
 387        NET_IPV4_ALWAYS_DEFRAG=67,
 388        NET_IPV4_TCP_KEEPALIVE_INTVL=68,
 389        NET_IPV4_INET_PEER_THRESHOLD=69,
 390        NET_IPV4_INET_PEER_MINTTL=70,
 391        NET_IPV4_INET_PEER_MAXTTL=71,
 392        NET_IPV4_INET_PEER_GC_MINTIME=72,
 393        NET_IPV4_INET_PEER_GC_MAXTIME=73,
 394        NET_TCP_ORPHAN_RETRIES=74,
 395        NET_TCP_ABORT_ON_OVERFLOW=75,
 396        NET_TCP_SYNACK_RETRIES=76,
 397        NET_TCP_MAX_ORPHANS=77,
 398        NET_TCP_MAX_TW_BUCKETS=78,
 399        NET_TCP_FACK=79,
 400        NET_TCP_REORDERING=80,
 401        NET_TCP_ECN=81,
 402        NET_TCP_DSACK=82,
 403        NET_TCP_MEM=83,
 404        NET_TCP_WMEM=84,
 405        NET_TCP_RMEM=85,
 406        NET_TCP_APP_WIN=86,
 407        NET_TCP_ADV_WIN_SCALE=87,
 408        NET_IPV4_NONLOCAL_BIND=88,
 409        NET_IPV4_ICMP_RATELIMIT=89,
 410        NET_IPV4_ICMP_RATEMASK=90,
 411        NET_TCP_TW_REUSE=91,
 412        NET_TCP_FRTO=92,
 413        NET_TCP_LOW_LATENCY=93,
 414        NET_IPV4_IPFRAG_SECRET_INTERVAL=94,
 415        NET_IPV4_IGMP_MAX_MSF=96,
 416        NET_TCP_NO_METRICS_SAVE=97,
 417        NET_TCP_DEFAULT_WIN_SCALE=105,
 418        NET_TCP_MODERATE_RCVBUF=106,
 419        NET_TCP_TSO_WIN_DIVISOR=107,
 420        NET_TCP_BIC_BETA=108,
 421        NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109,
 422        NET_TCP_CONG_CONTROL=110,
 423        NET_TCP_ABC=111,
 424        NET_IPV4_IPFRAG_MAX_DIST=112,
 425        NET_TCP_MTU_PROBING=113,
 426        NET_TCP_BASE_MSS=114,
 427        NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS=115,
 428        NET_TCP_DMA_COPYBREAK=116,
 429        NET_TCP_SLOW_START_AFTER_IDLE=117,
 430        NET_CIPSOV4_CACHE_ENABLE=118,
 431        NET_CIPSOV4_CACHE_BUCKET_SIZE=119,
 432        NET_CIPSOV4_RBM_OPTFMT=120,
 433        NET_CIPSOV4_RBM_STRICTVALID=121,
 434        NET_TCP_AVAIL_CONG_CONTROL=122,
 435        NET_TCP_ALLOWED_CONG_CONTROL=123,
 436        NET_TCP_MAX_SSTHRESH=124,
 437        NET_TCP_FRTO_RESPONSE=125,
 438};
 439
 440enum {
 441        NET_IPV4_ROUTE_FLUSH=1,
 442        NET_IPV4_ROUTE_MIN_DELAY=2, /* obsolete since 2.6.25 */
 443        NET_IPV4_ROUTE_MAX_DELAY=3, /* obsolete since 2.6.25 */
 444        NET_IPV4_ROUTE_GC_THRESH=4,
 445        NET_IPV4_ROUTE_MAX_SIZE=5,
 446        NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
 447        NET_IPV4_ROUTE_GC_TIMEOUT=7,
 448        NET_IPV4_ROUTE_GC_INTERVAL=8,
 449        NET_IPV4_ROUTE_REDIRECT_LOAD=9,
 450        NET_IPV4_ROUTE_REDIRECT_NUMBER=10,
 451        NET_IPV4_ROUTE_REDIRECT_SILENCE=11,
 452        NET_IPV4_ROUTE_ERROR_COST=12,
 453        NET_IPV4_ROUTE_ERROR_BURST=13,
 454        NET_IPV4_ROUTE_GC_ELASTICITY=14,
 455        NET_IPV4_ROUTE_MTU_EXPIRES=15,
 456        NET_IPV4_ROUTE_MIN_PMTU=16,
 457        NET_IPV4_ROUTE_MIN_ADVMSS=17,
 458        NET_IPV4_ROUTE_SECRET_INTERVAL=18,
 459        NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS=19,
 460};
 461
 462enum
 463{
 464        NET_PROTO_CONF_ALL=-2,
 465        NET_PROTO_CONF_DEFAULT=-3
 466
 467        /* And device ifindices ... */
 468};
 469
 470enum
 471{
 472        NET_IPV4_CONF_FORWARDING=1,
 473        NET_IPV4_CONF_MC_FORWARDING=2,
 474        NET_IPV4_CONF_PROXY_ARP=3,
 475        NET_IPV4_CONF_ACCEPT_REDIRECTS=4,
 476        NET_IPV4_CONF_SECURE_REDIRECTS=5,
 477        NET_IPV4_CONF_SEND_REDIRECTS=6,
 478        NET_IPV4_CONF_SHARED_MEDIA=7,
 479        NET_IPV4_CONF_RP_FILTER=8,
 480        NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE=9,
 481        NET_IPV4_CONF_BOOTP_RELAY=10,
 482        NET_IPV4_CONF_LOG_MARTIANS=11,
 483        NET_IPV4_CONF_TAG=12,
 484        NET_IPV4_CONF_ARPFILTER=13,
 485        NET_IPV4_CONF_MEDIUM_ID=14,
 486        NET_IPV4_CONF_NOXFRM=15,
 487        NET_IPV4_CONF_NOPOLICY=16,
 488        NET_IPV4_CONF_FORCE_IGMP_VERSION=17,
 489        NET_IPV4_CONF_ARP_ANNOUNCE=18,
 490        NET_IPV4_CONF_ARP_IGNORE=19,
 491        NET_IPV4_CONF_PROMOTE_SECONDARIES=20,
 492        NET_IPV4_CONF_ARP_ACCEPT=21,
 493        __NET_IPV4_CONF_MAX
 494};
 495
 496/* /proc/sys/net/ipv4/netfilter */
 497enum
 498{
 499        NET_IPV4_NF_CONNTRACK_MAX=1,
 500        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
 501        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
 502        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
 503        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
 504        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
 505        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
 506        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
 507        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
 508        NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT=10,
 509        NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
 510        NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT=12,
 511        NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT=13,
 512        NET_IPV4_NF_CONNTRACK_BUCKETS=14,
 513        NET_IPV4_NF_CONNTRACK_LOG_INVALID=15,
 514        NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
 515        NET_IPV4_NF_CONNTRACK_TCP_LOOSE=17,
 516        NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL=18,
 517        NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS=19,
 518        NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
 519        NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
 520        NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
 521        NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
 522        NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
 523        NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
 524        NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
 525        NET_IPV4_NF_CONNTRACK_COUNT=27,
 526        NET_IPV4_NF_CONNTRACK_CHECKSUM=28,
 527};
 528 
 529/* /proc/sys/net/ipv6 */
 530enum {
 531        NET_IPV6_CONF=16,
 532        NET_IPV6_NEIGH=17,
 533        NET_IPV6_ROUTE=18,
 534        NET_IPV6_ICMP=19,
 535        NET_IPV6_BINDV6ONLY=20,
 536        NET_IPV6_IP6FRAG_HIGH_THRESH=21,
 537        NET_IPV6_IP6FRAG_LOW_THRESH=22,
 538        NET_IPV6_IP6FRAG_TIME=23,
 539        NET_IPV6_IP6FRAG_SECRET_INTERVAL=24,
 540        NET_IPV6_MLD_MAX_MSF=25,
 541};
 542
 543enum {
 544        NET_IPV6_ROUTE_FLUSH=1,
 545        NET_IPV6_ROUTE_GC_THRESH=2,
 546        NET_IPV6_ROUTE_MAX_SIZE=3,
 547        NET_IPV6_ROUTE_GC_MIN_INTERVAL=4,
 548        NET_IPV6_ROUTE_GC_TIMEOUT=5,
 549        NET_IPV6_ROUTE_GC_INTERVAL=6,
 550        NET_IPV6_ROUTE_GC_ELASTICITY=7,
 551        NET_IPV6_ROUTE_MTU_EXPIRES=8,
 552        NET_IPV6_ROUTE_MIN_ADVMSS=9,
 553        NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS=10
 554};
 555
 556enum {
 557        NET_IPV6_FORWARDING=1,
 558        NET_IPV6_HOP_LIMIT=2,
 559        NET_IPV6_MTU=3,
 560        NET_IPV6_ACCEPT_RA=4,
 561        NET_IPV6_ACCEPT_REDIRECTS=5,
 562        NET_IPV6_AUTOCONF=6,
 563        NET_IPV6_DAD_TRANSMITS=7,
 564        NET_IPV6_RTR_SOLICITS=8,
 565        NET_IPV6_RTR_SOLICIT_INTERVAL=9,
 566        NET_IPV6_RTR_SOLICIT_DELAY=10,
 567        NET_IPV6_USE_TEMPADDR=11,
 568        NET_IPV6_TEMP_VALID_LFT=12,
 569        NET_IPV6_TEMP_PREFERED_LFT=13,
 570        NET_IPV6_REGEN_MAX_RETRY=14,
 571        NET_IPV6_MAX_DESYNC_FACTOR=15,
 572        NET_IPV6_MAX_ADDRESSES=16,
 573        NET_IPV6_FORCE_MLD_VERSION=17,
 574        NET_IPV6_ACCEPT_RA_DEFRTR=18,
 575        NET_IPV6_ACCEPT_RA_PINFO=19,
 576        NET_IPV6_ACCEPT_RA_RTR_PREF=20,
 577        NET_IPV6_RTR_PROBE_INTERVAL=21,
 578        NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN=22,
 579        NET_IPV6_PROXY_NDP=23,
 580        NET_IPV6_ACCEPT_SOURCE_ROUTE=25,
 581        __NET_IPV6_MAX
 582};
 583
 584/* /proc/sys/net/ipv6/icmp */
 585enum {
 586        NET_IPV6_ICMP_RATELIMIT=1
 587};
 588
 589/* /proc/sys/net/<protocol>/neigh/<dev> */
 590enum {
 591        NET_NEIGH_MCAST_SOLICIT=1,
 592        NET_NEIGH_UCAST_SOLICIT=2,
 593        NET_NEIGH_APP_SOLICIT=3,
 594        NET_NEIGH_RETRANS_TIME=4,
 595        NET_NEIGH_REACHABLE_TIME=5,
 596        NET_NEIGH_DELAY_PROBE_TIME=6,
 597        NET_NEIGH_GC_STALE_TIME=7,
 598        NET_NEIGH_UNRES_QLEN=8,
 599        NET_NEIGH_PROXY_QLEN=9,
 600        NET_NEIGH_ANYCAST_DELAY=10,
 601        NET_NEIGH_PROXY_DELAY=11,
 602        NET_NEIGH_LOCKTIME=12,
 603        NET_NEIGH_GC_INTERVAL=13,
 604        NET_NEIGH_GC_THRESH1=14,
 605        NET_NEIGH_GC_THRESH2=15,
 606        NET_NEIGH_GC_THRESH3=16,
 607        NET_NEIGH_RETRANS_TIME_MS=17,
 608        NET_NEIGH_REACHABLE_TIME_MS=18,
 609        __NET_NEIGH_MAX
 610};
 611
 612/* /proc/sys/net/dccp */
 613enum {
 614        NET_DCCP_DEFAULT=1,
 615};
 616
 617/* /proc/sys/net/ipx */
 618enum {
 619        NET_IPX_PPROP_BROADCASTING=1,
 620        NET_IPX_FORWARDING=2
 621};
 622
 623/* /proc/sys/net/llc */
 624enum {
 625        NET_LLC2=1,
 626        NET_LLC_STATION=2,
 627};
 628
 629/* /proc/sys/net/llc/llc2 */
 630enum {
 631        NET_LLC2_TIMEOUT=1,
 632};
 633
 634/* /proc/sys/net/llc/station */
 635enum {
 636        NET_LLC_STATION_ACK_TIMEOUT=1,
 637};
 638
 639/* /proc/sys/net/llc/llc2/timeout */
 640enum {
 641        NET_LLC2_ACK_TIMEOUT=1,
 642        NET_LLC2_P_TIMEOUT=2,
 643        NET_LLC2_REJ_TIMEOUT=3,
 644        NET_LLC2_BUSY_TIMEOUT=4,
 645};
 646
 647/* /proc/sys/net/appletalk */
 648enum {
 649        NET_ATALK_AARP_EXPIRY_TIME=1,
 650        NET_ATALK_AARP_TICK_TIME=2,
 651        NET_ATALK_AARP_RETRANSMIT_LIMIT=3,
 652        NET_ATALK_AARP_RESOLVE_TIME=4
 653};
 654
 655
 656/* /proc/sys/net/netrom */
 657enum {
 658        NET_NETROM_DEFAULT_PATH_QUALITY=1,
 659        NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2,
 660        NET_NETROM_NETWORK_TTL_INITIALISER=3,
 661        NET_NETROM_TRANSPORT_TIMEOUT=4,
 662        NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5,
 663        NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6,
 664        NET_NETROM_TRANSPORT_BUSY_DELAY=7,
 665        NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8,
 666        NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9,
 667        NET_NETROM_ROUTING_CONTROL=10,
 668        NET_NETROM_LINK_FAILS_COUNT=11,
 669        NET_NETROM_RESET=12
 670};
 671
 672/* /proc/sys/net/ax25 */
 673enum {
 674        NET_AX25_IP_DEFAULT_MODE=1,
 675        NET_AX25_DEFAULT_MODE=2,
 676        NET_AX25_BACKOFF_TYPE=3,
 677        NET_AX25_CONNECT_MODE=4,
 678        NET_AX25_STANDARD_WINDOW=5,
 679        NET_AX25_EXTENDED_WINDOW=6,
 680        NET_AX25_T1_TIMEOUT=7,
 681        NET_AX25_T2_TIMEOUT=8,
 682        NET_AX25_T3_TIMEOUT=9,
 683        NET_AX25_IDLE_TIMEOUT=10,
 684        NET_AX25_N2=11,
 685        NET_AX25_PACLEN=12,
 686        NET_AX25_PROTOCOL=13,
 687        NET_AX25_DAMA_SLAVE_TIMEOUT=14
 688};
 689
 690/* /proc/sys/net/rose */
 691enum {
 692        NET_ROSE_RESTART_REQUEST_TIMEOUT=1,
 693        NET_ROSE_CALL_REQUEST_TIMEOUT=2,
 694        NET_ROSE_RESET_REQUEST_TIMEOUT=3,
 695        NET_ROSE_CLEAR_REQUEST_TIMEOUT=4,
 696        NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5,
 697        NET_ROSE_ROUTING_CONTROL=6,
 698        NET_ROSE_LINK_FAIL_TIMEOUT=7,
 699        NET_ROSE_MAX_VCS=8,
 700        NET_ROSE_WINDOW_SIZE=9,
 701        NET_ROSE_NO_ACTIVITY_TIMEOUT=10
 702};
 703
 704/* /proc/sys/net/x25 */
 705enum {
 706        NET_X25_RESTART_REQUEST_TIMEOUT=1,
 707        NET_X25_CALL_REQUEST_TIMEOUT=2,
 708        NET_X25_RESET_REQUEST_TIMEOUT=3,
 709        NET_X25_CLEAR_REQUEST_TIMEOUT=4,
 710        NET_X25_ACK_HOLD_BACK_TIMEOUT=5,
 711        NET_X25_FORWARD=6
 712};
 713
 714/* /proc/sys/net/token-ring */
 715enum
 716{
 717        NET_TR_RIF_TIMEOUT=1
 718};
 719
 720/* /proc/sys/net/decnet/ */
 721enum {
 722        NET_DECNET_NODE_TYPE = 1,
 723        NET_DECNET_NODE_ADDRESS = 2,
 724        NET_DECNET_NODE_NAME = 3,
 725        NET_DECNET_DEFAULT_DEVICE = 4,
 726        NET_DECNET_TIME_WAIT = 5,
 727        NET_DECNET_DN_COUNT = 6,
 728        NET_DECNET_DI_COUNT = 7,
 729        NET_DECNET_DR_COUNT = 8,
 730        NET_DECNET_DST_GC_INTERVAL = 9,
 731        NET_DECNET_CONF = 10,
 732        NET_DECNET_NO_FC_MAX_CWND = 11,
 733        NET_DECNET_MEM = 12,
 734        NET_DECNET_RMEM = 13,
 735        NET_DECNET_WMEM = 14,
 736        NET_DECNET_DEBUG_LEVEL = 255
 737};
 738
 739/* /proc/sys/net/decnet/conf/<dev> */
 740enum {
 741        NET_DECNET_CONF_LOOPBACK = -2,
 742        NET_DECNET_CONF_DDCMP = -3,
 743        NET_DECNET_CONF_PPP = -4,
 744        NET_DECNET_CONF_X25 = -5,
 745        NET_DECNET_CONF_GRE = -6,
 746        NET_DECNET_CONF_ETHER = -7
 747
 748        /* ... and ifindex of devices */
 749};
 750
 751/* /proc/sys/net/decnet/conf/<dev>/ */
 752enum {
 753        NET_DECNET_CONF_DEV_PRIORITY = 1,
 754        NET_DECNET_CONF_DEV_T1 = 2,
 755        NET_DECNET_CONF_DEV_T2 = 3,
 756        NET_DECNET_CONF_DEV_T3 = 4,
 757        NET_DECNET_CONF_DEV_FORWARDING = 5,
 758        NET_DECNET_CONF_DEV_BLKSIZE = 6,
 759        NET_DECNET_CONF_DEV_STATE = 7
 760};
 761
 762/* /proc/sys/net/sctp */
 763enum {
 764        NET_SCTP_RTO_INITIAL = 1,
 765        NET_SCTP_RTO_MIN     = 2,
 766        NET_SCTP_RTO_MAX     = 3,
 767        NET_SCTP_RTO_ALPHA   = 4,
 768        NET_SCTP_RTO_BETA    = 5,
 769        NET_SCTP_VALID_COOKIE_LIFE       =  6,
 770        NET_SCTP_ASSOCIATION_MAX_RETRANS =  7,
 771        NET_SCTP_PATH_MAX_RETRANS        =  8,
 772        NET_SCTP_MAX_INIT_RETRANSMITS    =  9,
 773        NET_SCTP_HB_INTERVAL             = 10,
 774        NET_SCTP_PRESERVE_ENABLE         = 11,
 775        NET_SCTP_MAX_BURST               = 12,
 776        NET_SCTP_ADDIP_ENABLE            = 13,
 777        NET_SCTP_PRSCTP_ENABLE           = 14,
 778        NET_SCTP_SNDBUF_POLICY           = 15,
 779        NET_SCTP_SACK_TIMEOUT            = 16,
 780        NET_SCTP_RCVBUF_POLICY           = 17,
 781};
 782
 783/* /proc/sys/net/bridge */
 784enum {
 785        NET_BRIDGE_NF_CALL_ARPTABLES = 1,
 786        NET_BRIDGE_NF_CALL_IPTABLES = 2,
 787        NET_BRIDGE_NF_CALL_IP6TABLES = 3,
 788        NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4,
 789        NET_BRIDGE_NF_FILTER_PPPOE_TAGGED = 5,
 790};
 791
 792/* proc/sys/net/irda */
 793enum {
 794        NET_IRDA_DISCOVERY=1,
 795        NET_IRDA_DEVNAME=2,
 796        NET_IRDA_DEBUG=3,
 797        NET_IRDA_FAST_POLL=4,
 798        NET_IRDA_DISCOVERY_SLOTS=5,
 799        NET_IRDA_DISCOVERY_TIMEOUT=6,
 800        NET_IRDA_SLOT_TIMEOUT=7,
 801        NET_IRDA_MAX_BAUD_RATE=8,
 802        NET_IRDA_MIN_TX_TURN_TIME=9,
 803        NET_IRDA_MAX_TX_DATA_SIZE=10,
 804        NET_IRDA_MAX_TX_WINDOW=11,
 805        NET_IRDA_MAX_NOREPLY_TIME=12,
 806        NET_IRDA_WARN_NOREPLY_TIME=13,
 807        NET_IRDA_LAP_KEEPALIVE_TIME=14,
 808};
 809
 810
 811/* CTL_FS names: */
 812enum
 813{
 814        FS_NRINODE=1,   /* int:current number of allocated inodes */
 815        FS_STATINODE=2,
 816        FS_MAXINODE=3,  /* int:maximum number of inodes that can be allocated */
 817        FS_NRDQUOT=4,   /* int:current number of allocated dquots */
 818        FS_MAXDQUOT=5,  /* int:maximum number of dquots that can be allocated */
 819        FS_NRFILE=6,    /* int:current number of allocated filedescriptors */
 820        FS_MAXFILE=7,   /* int:maximum number of filedescriptors that can be allocated */
 821        FS_DENTRY=8,
 822        FS_NRSUPER=9,   /* int:current number of allocated super_blocks */
 823        FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */
 824        FS_OVERFLOWUID=11,      /* int: overflow UID */
 825        FS_OVERFLOWGID=12,      /* int: overflow GID */
 826        FS_LEASES=13,   /* int: leases enabled */
 827        FS_DIR_NOTIFY=14,       /* int: directory notification enabled */
 828        FS_LEASE_TIME=15,       /* int: maximum time to wait for a lease break */
 829        FS_DQSTATS=16,  /* disc quota usage statistics and control */
 830        FS_XFS=17,      /* struct: control xfs parameters */
 831        FS_AIO_NR=18,   /* current system-wide number of aio requests */
 832        FS_AIO_MAX_NR=19,       /* system-wide maximum number of aio requests */
 833        FS_INOTIFY=20,  /* inotify submenu */
 834        FS_OCFS2=988,   /* ocfs2 */
 835};
 836
 837/* /proc/sys/fs/quota/ */
 838enum {
 839        FS_DQ_LOOKUPS = 1,
 840        FS_DQ_DROPS = 2,
 841        FS_DQ_READS = 3,
 842        FS_DQ_WRITES = 4,
 843        FS_DQ_CACHE_HITS = 5,
 844        FS_DQ_ALLOCATED = 6,
 845        FS_DQ_FREE = 7,
 846        FS_DQ_SYNCS = 8,
 847        FS_DQ_WARNINGS = 9,
 848};
 849
 850/* CTL_DEBUG names: */
 851
 852/* CTL_DEV names: */
 853enum {
 854        DEV_CDROM=1,
 855        DEV_HWMON=2,
 856        DEV_PARPORT=3,
 857        DEV_RAID=4,
 858        DEV_MAC_HID=5,
 859        DEV_SCSI=6,
 860        DEV_IPMI=7,
 861};
 862
 863/* /proc/sys/dev/cdrom */
 864enum {
 865        DEV_CDROM_INFO=1,
 866        DEV_CDROM_AUTOCLOSE=2,
 867        DEV_CDROM_AUTOEJECT=3,
 868        DEV_CDROM_DEBUG=4,
 869        DEV_CDROM_LOCK=5,
 870        DEV_CDROM_CHECK_MEDIA=6
 871};
 872
 873/* /proc/sys/dev/parport */
 874enum {
 875        DEV_PARPORT_DEFAULT=-3
 876};
 877
 878/* /proc/sys/dev/raid */
 879enum {
 880        DEV_RAID_SPEED_LIMIT_MIN=1,
 881        DEV_RAID_SPEED_LIMIT_MAX=2
 882};
 883
 884/* /proc/sys/dev/parport/default */
 885enum {
 886        DEV_PARPORT_DEFAULT_TIMESLICE=1,
 887        DEV_PARPORT_DEFAULT_SPINTIME=2
 888};
 889
 890/* /proc/sys/dev/parport/parport n */
 891enum {
 892        DEV_PARPORT_SPINTIME=1,
 893        DEV_PARPORT_BASE_ADDR=2,
 894        DEV_PARPORT_IRQ=3,
 895        DEV_PARPORT_DMA=4,
 896        DEV_PARPORT_MODES=5,
 897        DEV_PARPORT_DEVICES=6,
 898        DEV_PARPORT_AUTOPROBE=16
 899};
 900
 901/* /proc/sys/dev/parport/parport n/devices/ */
 902enum {
 903        DEV_PARPORT_DEVICES_ACTIVE=-3,
 904};
 905
 906/* /proc/sys/dev/parport/parport n/devices/device n */
 907enum {
 908        DEV_PARPORT_DEVICE_TIMESLICE=1,
 909};
 910
 911/* /proc/sys/dev/mac_hid */
 912enum {
 913        DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1,
 914        DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2,
 915        DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3,
 916        DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4,
 917        DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5,
 918        DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6
 919};
 920
 921/* /proc/sys/dev/scsi */
 922enum {
 923        DEV_SCSI_LOGGING_LEVEL=1,
 924};
 925
 926/* /proc/sys/dev/ipmi */
 927enum {
 928        DEV_IPMI_POWEROFF_POWERCYCLE=1,
 929};
 930
 931/* /proc/sys/abi */
 932enum
 933{
 934        ABI_DEFHANDLER_COFF=1,  /* default handler for coff binaries */
 935        ABI_DEFHANDLER_ELF=2,   /* default handler for ELF binaries */
 936        ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */
 937        ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */
 938        ABI_TRACE=5,            /* tracing flags */
 939        ABI_FAKE_UTSNAME=6,     /* fake target utsname information */
 940};
 941
 942#ifdef __KERNEL__
 943#include <linux/list.h>
 944
 945/* For the /proc/sys support */
 946struct ctl_table;
 947struct nsproxy;
 948struct ctl_table_root;
 949
 950struct ctl_table_set {
 951        struct list_head list;
 952        struct ctl_table_set *parent;
 953        int (*is_seen)(struct ctl_table_set *);
 954};
 955
 956extern void setup_sysctl_set(struct ctl_table_set *p,
 957        struct ctl_table_set *parent,
 958        int (*is_seen)(struct ctl_table_set *));
 959
 960struct ctl_table_header;
 961
 962extern void sysctl_head_get(struct ctl_table_header *);
 963extern void sysctl_head_put(struct ctl_table_header *);
 964extern int sysctl_is_seen(struct ctl_table_header *);
 965extern struct ctl_table_header *sysctl_head_grab(struct ctl_table_header *);
 966extern struct ctl_table_header *sysctl_head_next(struct ctl_table_header *prev);
 967extern struct ctl_table_header *__sysctl_head_next(struct nsproxy *namespaces,
 968                                                struct ctl_table_header *prev);
 969extern void sysctl_head_finish(struct ctl_table_header *prev);
 970extern int sysctl_perm(struct ctl_table_root *root,
 971                struct ctl_table *table, int op);
 972
 973typedef struct ctl_table ctl_table;
 974
 975typedef int ctl_handler (struct ctl_table *table,
 976                         void __user *oldval, size_t __user *oldlenp,
 977                         void __user *newval, size_t newlen);
 978
 979typedef int proc_handler (struct ctl_table *ctl, int write, struct file * filp,
 980                          void __user *buffer, size_t *lenp, loff_t *ppos);
 981
 982extern int proc_dostring(struct ctl_table *, int, struct file *,
 983                         void __user *, size_t *, loff_t *);
 984extern int proc_dointvec(struct ctl_table *, int, struct file *,
 985                         void __user *, size_t *, loff_t *);
 986extern int proc_dointvec_minmax(struct ctl_table *, int, struct file *,
 987                                void __user *, size_t *, loff_t *);
 988extern int proc_dointvec_jiffies(struct ctl_table *, int, struct file *,
 989                                 void __user *, size_t *, loff_t *);
 990extern int proc_dointvec_userhz_jiffies(struct ctl_table *, int, struct file *,
 991                                        void __user *, size_t *, loff_t *);
 992extern int proc_dointvec_ms_jiffies(struct ctl_table *, int, struct file *,
 993                                    void __user *, size_t *, loff_t *);
 994extern int proc_doulongvec_minmax(struct ctl_table *, int, struct file *,
 995                                  void __user *, size_t *, loff_t *);
 996extern int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int,
 997                                      struct file *, void __user *, size_t *, loff_t *);
 998
 999extern int do_sysctl (int __user *name, int nlen,
1000                      void __user *oldval, size_t __user *oldlenp,
1001                      void __user *newval, size_t newlen);
1002
1003extern ctl_handler sysctl_data;
1004extern ctl_handler sysctl_string;
1005extern ctl_handler sysctl_intvec;
1006extern ctl_handler sysctl_jiffies;
1007extern ctl_handler sysctl_ms_jiffies;
1008
1009
1010/*
1011 * Register a set of sysctl names by calling register_sysctl_table
1012 * with an initialised array of struct ctl_table's.  An entry with zero
1013 * ctl_name and NULL procname terminates the table.  table->de will be
1014 * set up by the registration and need not be initialised in advance.
1015 *
1016 * sysctl names can be mirrored automatically under /proc/sys.  The
1017 * procname supplied controls /proc naming.
1018 *
1019 * The table's mode will be honoured both for sys_sysctl(2) and
1020 * proc-fs access.
1021 *
1022 * Leaf nodes in the sysctl tree will be represented by a single file
1023 * under /proc; non-leaf nodes will be represented by directories.  A
1024 * null procname disables /proc mirroring at this node.
1025 *
1026 * sysctl entries with a zero ctl_name will not be available through
1027 * the binary sysctl interface.
1028 *
1029 * sysctl(2) can automatically manage read and write requests through
1030 * the sysctl table.  The data and maxlen fields of the ctl_table
1031 * struct enable minimal validation of the values being written to be
1032 * performed, and the mode field allows minimal authentication.
1033 * 
1034 * More sophisticated management can be enabled by the provision of a
1035 * strategy routine with the table entry.  This will be called before
1036 * any automatic read or write of the data is performed.
1037 * 
1038 * The strategy routine may return:
1039 * <0: Error occurred (error is passed to user process)
1040 * 0:  OK - proceed with automatic read or write.
1041 * >0: OK - read or write has been done by the strategy routine, so 
1042 *     return immediately.
1043 * 
1044 * There must be a proc_handler routine for any terminal nodes
1045 * mirrored under /proc/sys (non-terminals are handled by a built-in
1046 * directory handler).  Several default handlers are available to
1047 * cover common cases.
1048 */
1049
1050/* A sysctl table is an array of struct ctl_table: */
1051struct ctl_table 
1052{
1053        int ctl_name;                   /* Binary ID */
1054        const char *procname;           /* Text ID for /proc/sys, or zero */
1055        void *data;
1056        int maxlen;
1057        mode_t mode;
1058        struct ctl_table *child;
1059        struct ctl_table *parent;       /* Automatically set */
1060        proc_handler *proc_handler;     /* Callback for text formatting */
1061        ctl_handler *strategy;          /* Callback function for all r/w */
1062        void *extra1;
1063        void *extra2;
1064};
1065
1066struct ctl_table_root {
1067        struct list_head root_list;
1068        struct ctl_table_set default_set;
1069        struct ctl_table_set *(*lookup)(struct ctl_table_root *root,
1070                                           struct nsproxy *namespaces);
1071        int (*permissions)(struct ctl_table_root *root,
1072                        struct nsproxy *namespaces, struct ctl_table *table);
1073};
1074
1075/* struct ctl_table_header is used to maintain dynamic lists of
1076   struct ctl_table trees. */
1077struct ctl_table_header
1078{
1079        struct ctl_table *ctl_table;
1080        struct list_head ctl_entry;
1081        int used;
1082        int count;
1083        struct completion *unregistering;
1084        struct ctl_table *ctl_table_arg;
1085        struct ctl_table_root *root;
1086        struct ctl_table_set *set;
1087        struct ctl_table *attached_by;
1088        struct ctl_table *attached_to;
1089        struct ctl_table_header *parent;
1090};
1091
1092/* struct ctl_path describes where in the hierarchy a table is added */
1093struct ctl_path {
1094        const char *procname;
1095        int ctl_name;
1096};
1097
1098void register_sysctl_root(struct ctl_table_root *root);
1099struct ctl_table_header *__register_sysctl_paths(
1100        struct ctl_table_root *root, struct nsproxy *namespaces,
1101        const struct ctl_path *path, struct ctl_table *table);
1102struct ctl_table_header *register_sysctl_table(struct ctl_table * table);
1103struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path,
1104                                                struct ctl_table *table);
1105
1106void unregister_sysctl_table(struct ctl_table_header * table);
1107int sysctl_check_table(struct nsproxy *namespaces, struct ctl_table *table);
1108
1109#endif /* __KERNEL__ */
1110
1111#endif /* _LINUX_SYSCTL_H */
1112
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