/*
* sysctl.h: General linux system control interface
*
* Begun 24 March 1995, Stephen Tweedie
*
****************************************************************
****************************************************************
**
** The values in this file are exported to user space via
** the sysctl() binary interface. However this interface
** is unstable and deprecated and will be removed in the future.
** For a stable interface use /proc/sys.
**
****************************************************************
****************************************************************
*/
#ifndef _LINUX_SYSCTL_H
#define _LINUX_SYSCTL_H
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/compiler.h>
struct file;
struct completion;
#define CTL_MAXNAME 10 /* how many path components do we allow in a
call to sysctl? In other words, what is
the largest acceptable value for the nlen
member of a struct __sysctl_args to have? */
struct __sysctl_args {
int __user *name;
int nlen;
void __user *oldval;
size_t __user *oldlenp;
void __user *newval;
size_t newlen;
unsigned long __unused[4];
};
/* Define sysctl names first */
/* Top-level names: */
/* For internal pattern-matching use only: */
#ifdef __KERNEL__
#define CTL_ANY -1 /* Matches any name */
#define CTL_NONE 0
#endif
enum
{
CTL_KERN=1, /* General kernel info and control */
CTL_VM=2, /* VM management */
CTL_NET=3, /* Networking */
CTL_PROC=4, /* Process info */
CTL_FS=5, /* Filesystems */
CTL_DEBUG=6, /* Debugging */
CTL_DEV=7, /* Devices */
CTL_BUS=8, /* Busses */
CTL_ABI=9, /* Binary emulation */
CTL_CPU=10 /* CPU stuff (speed scaling, etc) */
};
/* CTL_BUS names: */
enum
{
CTL_BUS_ISA=1 /* ISA */
};
/* /proc/sys/fs/inotify/ */
enum
{
INOTIFY_MAX_USER_INSTANCES=1, /* max instances per user */
INOTIFY_MAX_USER_WATCHES=2, /* max watches per user */
INOTIFY_MAX_QUEUED_EVENTS=3 /* max queued events per instance */
};
/* CTL_KERN names: */
enum
{
KERN_OSTYPE=1, /* string: system version */
KERN_OSRELEASE=2, /* string: system release */
KERN_OSREV=3, /* int: system revision */
KERN_VERSION=4, /* string: compile time info */
KERN_SECUREMASK=5, /* struct: maximum rights mask */
KERN_PROF=6, /* table: profiling information */
KERN_NODENAME=7,
KERN_DOMAINNAME=8,
KERN_CAP_BSET=14, /* int: capability bounding set */
KERN_PANIC=15, /* int: panic timeout */
KERN_REALROOTDEV=16, /* real root device to mount after initrd */
KERN_SPARC_REBOOT=21, /* reboot command on Sparc */
KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */
KERN_PRINTK=23, /* struct: control printk logging parameters */
KERN_NAMETRANS=24, /* Name translation */
KERN_PPC_HTABRECLAIM=25, /* turn htab reclaimation on/off on PPC */
KERN_PPC_ZEROPAGED=26, /* turn idle page zeroing on/off on PPC */
KERN_PPC_POWERSAVE_NAP=27, /* use nap mode for power saving */
KERN_MODPROBE=28,
KERN_SG_BIG_BUFF=29,
KERN_ACCT=30, /* BSD process accounting parameters */
KERN_PPC_L2CR=31, /* l2cr register on PPC */
KERN_RTSIGNR=32, /* Number of rt sigs queued */
KERN_RTSIGMAX=33, /* Max queuable */
KERN_SHMMAX=34, /* long: Maximum shared memory segment */
KERN_MSGMAX=35, /* int: Maximum size of a messege */
KERN_MSGMNB=36, /* int: Maximum message queue size */
KERN_MSGPOOL=37, /* int: Maximum system message pool size */
KERN_SYSRQ=38, /* int: Sysreq enable */
KERN_MAX_THREADS=39, /* int: Maximum nr of threads in the system */
KERN_RANDOM=40, /* Random driver */
KERN_SHMALL=41, /* int: Maximum size of shared memory */
KERN_MSGMNI=42, /* int: msg queue identifiers */
KERN_SEM=43, /* struct: sysv semaphore limits */
KERN_SPARC_STOP_A=44, /* int: Sparc Stop-A enable */
KERN_SHMMNI=45, /* int: shm array identifiers */
KERN_OVERFLOWUID=46, /* int: overflow UID */
KERN_OVERFLOWGID=47, /* int: overflow GID */
KERN_SHMPATH=48, /* string: path to shm fs */
KERN_HOTPLUG=49, /* string: path to hotplug policy agent */
KERN_IEEE_EMULATION_WARNINGS=50, /* int: unimplemented ieee instructions */
KERN_S390_USER_DEBUG_LOGGING=51, /* int: dumps of user faults */
KERN_CORE_USES_PID=52, /* int: use core or core.%pid */
KERN_TAINTED=53, /* int: various kernel tainted flags */
KERN_CADPID=54, /* int: PID of the process to notify on CAD */
KERN_PIDMAX=55, /* int: PID # limit */
KERN_CORE_PATTERN=56, /* string: pattern for core-file names */
KERN_PANIC_ON_OOPS=57, /* int: whether we will panic on an oops */
KERN_HPPA_PWRSW=58, /* int: hppa soft-power enable */
KERN_HPPA_UNALIGNED=59, /* int: hppa unaligned-trap enable */
KERN_PRINTK_RATELIMIT=60, /* int: tune printk ratelimiting */
KERN_PRINTK_RATELIMIT_BURST=61, /* int: tune printk ratelimiting */
KERN_PTY=62, /* dir: pty driver */
KERN_NGROUPS_MAX=63, /* int: NGROUPS_MAX */
KERN_SPARC_SCONS_PWROFF=64, /* int: serial console power-off halt */
KERN_HZ_TIMER=65, /* int: hz timer on or off */
KERN_UNKNOWN_NMI_PANIC=66, /* int: unknown nmi panic flag */
KERN_BOOTLOADER_TYPE=67, /* int: boot loader type */
KERN_RANDOMIZE=68, /* int: randomize virtual address space */
KERN_SETUID_DUMPABLE=69, /* int: behaviour of dumps for setuid core */
KERN_SPIN_RETRY=70, /* int: number of spinlock retries */
};
/* CTL_VM names: */
enum
{
VM_UNUSED1=1, /* was: struct: Set vm swapping control */
VM_UNUSED2=2, /* was; int: Linear or sqrt() swapout for hogs */
VM_UNUSED3=3, /* was: struct: Set free page thresholds */
VM_UNUSED4=4, /* Spare */
VM_OVERCOMMIT_MEMORY=5, /* Turn off the virtual memory safety limit */
VM_UNUSED5=6, /* was: struct: Set buffer memory thresholds */
VM_UNUSED7=7, /* was: struct: Set cache memory thresholds */
VM_UNUSED8=8, /* was: struct: Control kswapd behaviour */
VM_UNUSED9=9, /* was: struct: Set page table cache parameters */
VM_PAGE_CLUSTER=10, /* int: set number of pages to swap together */
VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */
VM_DIRTY_RATIO=12, /* dirty_ratio */
VM_DIRTY_WB_CS=13, /* dirty_writeback_centisecs */
VM_DIRTY_EXPIRE_CS=14, /* dirty_expire_centisecs */
VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */
VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */
VM_PAGEBUF=17, /* struct: Control pagebuf parameters */
VM_HUGETLB_PAGES=18, /* int: Number of available Huge Pages */
VM_SWAPPINESS=19, /* Tendency to steal mapped memory */
VM_LOWMEM_RESERVE_RATIO=20,/* reservation ratio for lower memory zones */
VM_MIN_FREE_KBYTES=21, /* Minimum free kilobytes to maintain */
VM_MAX_MAP_COUNT=22, /* int: Maximum number of mmaps/address-space */
VM_LAPTOP_MODE=23, /* vm laptop mode */
VM_BLOCK_DUMP=24, /* block dump mode */
VM_HUGETLB_GROUP=25, /* permitted hugetlb group */
VM_VFS_CACHE_PRESSURE=26, /* dcache/icache reclaim pressure */
VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */
VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */
};
/* CTL_NET names: */
enum
{
NET_CORE=1,
NET_ETHER=2,
NET_802=3,
NET_UNIX=4,
NET_IPV4=5,
NET_IPX=6,
NET_ATALK=7,
NET_NETROM=8,
NET_AX25=9,
NET_BRIDGE=10,
NET_ROSE=11,
NET_IPV6=12,
NET_X25=13,
NET_TR=14,
NET_DECNET=15,
NET_ECONET=16,
NET_SCTP=17,
NET_LLC=18,
NET_NETFILTER=19,
};
/* /proc/sys/kernel/random */
enum
{
RANDOM_POOLSIZE=1,
RANDOM_ENTROPY_COUNT=2,
RANDOM_READ_THRESH=3,
RANDOM_WRITE_THRESH=4,
RANDOM_BOOT_ID=5,
RANDOM_UUID=6
};
/* /proc/sys/kernel/pty */
enum
{
PTY_MAX=1,
PTY_NR=2
};
/* /proc/sys/bus/isa */
enum
{
BUS_ISA_MEM_BASE=1,
BUS_ISA_PORT_BASE=2,
BUS_ISA_PORT_SHIFT=3
};
/* /proc/sys/net/core */
enum
{
NET_CORE_WMEM_MAX=1,
NET_CORE_RMEM_MAX=2,
NET_CORE_WMEM_DEFAULT=3,
NET_CORE_RMEM_DEFAULT=4,
/* was NET_CORE_DESTROY_DELAY */
NET_CORE_MAX_BACKLOG=6,
NET_CORE_FASTROUTE=7,
NET_CORE_MSG_COST=8,
NET_CORE_MSG_BURST=9,
NET_CORE_OPTMEM_MAX=10,
NET_CORE_HOT_LIST_LENGTH=11,
NET_CORE_DIVERT_VERSION=12,
NET_CORE_NO_CONG_THRESH=13,
NET_CORE_NO_CONG=14,
NET_CORE_LO_CONG=15,
NET_CORE_MOD_CONG=16,
NET_CORE_DEV_WEIGHT=17,
NET_CORE_SOMAXCONN=18,
NET_CORE_BUDGET=19,
};
/* /proc/sys/net/ethernet */
/* /proc/sys/net/802 */
/* /proc/sys/net/unix */
enum
{
NET_UNIX_DESTROY_DELAY=1,
NET_UNIX_DELETE_DELAY=2,
NET_UNIX_MAX_DGRAM_QLEN=3,
};
/* /proc/sys/net/netfilter */
enum
{
NET_NF_CONNTRACK_MAX=1,
NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
NET_NF_CONNTRACK_UDP_TIMEOUT=10,
NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
NET_NF_CONNTRACK_ICMP_TIMEOUT=12,
NET_NF_CONNTRACK_GENERIC_TIMEOUT=13,
NET_NF_CONNTRACK_BUCKETS=14,
NET_NF_CONNTRACK_LOG_INVALID=15,
NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
NET_NF_CONNTRACK_TCP_LOOSE=17,
NET_NF_CONNTRACK_TCP_BE_LIBERAL=18,
NET_NF_CONNTRACK_TCP_MAX_RETRANS=19,
NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
NET_NF_CONNTRACK_COUNT=27,
NET_NF_CONNTRACK_ICMPV6_TIMEOUT=28,
NET_NF_CONNTRACK_FRAG6_TIMEOUT=29,
NET_NF_CONNTRACK_FRAG6_LOW_THRESH=30,
NET_NF_CONNTRACK_FRAG6_HIGH_THRESH=31,
};
/* /proc/sys/net/ipv4 */
enum
{
/* v2.0 compatibile variables */
NET_IPV4_FORWARD=8,
NET_IPV4_DYNADDR=9,
NET_IPV4_CONF=16,
NET_IPV4_NEIGH=17,
NET_IPV4_ROUTE=18,
NET_IPV4_FIB_HASH=19,
NET_IPV4_NETFILTER=20,
NET_IPV4_TCP_TIMESTAMPS=33,
NET_IPV4_TCP_WINDOW_SCALING=34,
NET_IPV4_TCP_SACK=35,
NET_IPV4_TCP_RETRANS_COLLAPSE=36,
NET_IPV4_DEFAULT_TTL=37,
NET_IPV4_AUTOCONFIG=38,
NET_IPV4_NO_PMTU_DISC=39,
NET_IPV4_TCP_SYN_RETRIES=40,
NET_IPV4_IPFRAG_HIGH_THRESH=41,
NET_IPV4_IPFRAG_LOW_THRESH=42,
NET_IPV4_IPFRAG_TIME=43,
NET_IPV4_TCP_MAX_KA_PROBES=44,
NET_IPV4_TCP_KEEPALIVE_TIME=45,
NET_IPV4_TCP_KEEPALIVE_PROBES=46,
NET_IPV4_TCP_RETRIES1=47,
NET_IPV4_TCP_RETRIES2=48,
NET_IPV4_TCP_FIN_TIMEOUT=49,
NET_IPV4_IP_MASQ_DEBUG=50,
NET_TCP_SYNCOOKIES=51,
NET_TCP_STDURG=52,
NET_TCP_RFC1337=53,
NET_TCP_SYN_TAILDROP=54,
NET_TCP_MAX_SYN_BACKLOG=55,
NET_IPV4_LOCAL_PORT_RANGE=56,
NET_IPV4_ICMP_ECHO_IGNORE_ALL=57,
NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS=58,
NET_IPV4_ICMP_SOURCEQUENCH_RATE=59,
NET_IPV4_ICMP_DESTUNREACH_RATE=60,
NET_IPV4_ICMP_TIMEEXCEED_RATE=61,
NET_IPV4_ICMP_PARAMPROB_RATE=62,
NET_IPV4_ICMP_ECHOREPLY_RATE=63,
NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES=64,
NET_IPV4_IGMP_MAX_MEMBERSHIPS=65,
NET_TCP_TW_RECYCLE=66,
NET_IPV4_ALWAYS_DEFRAG=67,
NET_IPV4_TCP_KEEPALIVE_INTVL=68,
NET_IPV4_INET_PEER_THRESHOLD=69,
NET_IPV4_INET_PEER_MINTTL=70,
NET_IPV4_INET_PEER_MAXTTL=71,
NET_IPV4_INET_PEER_GC_MINTIME=72,
NET_IPV4_INET_PEER_GC_MAXTIME=73,
NET_TCP_ORPHAN_RETRIES=74,
NET_TCP_ABORT_ON_OVERFLOW=75,
NET_TCP_SYNACK_RETRIES=76,
NET_TCP_MAX_ORPHANS=77,
NET_TCP_MAX_TW_BUCKETS=78,
NET_TCP_FACK=79,
NET_TCP_REORDERING=80,
NET_TCP_ECN=81,
NET_TCP_DSACK=82,
NET_TCP_MEM=83,
NET_TCP_WMEM=84,
NET_TCP_RMEM=85,
NET_TCP_APP_WIN=86,
NET_TCP_ADV_WIN_SCALE=87,
NET_IPV4_NONLOCAL_BIND=88,
NET_IPV4_ICMP_RATELIMIT=89,
NET_IPV4_ICMP_RATEMASK=90,
NET_TCP_TW_REUSE=91,
NET_TCP_FRTO=92,
NET_TCP_LOW_LATENCY=93,
NET_IPV4_IPFRAG_SECRET_INTERVAL=94,
NET_IPV4_IGMP_MAX_MSF=96,
NET_TCP_NO_METRICS_SAVE=97,
NET_TCP_DEFAULT_WIN_SCALE=105,
NET_TCP_MODERATE_RCVBUF=106,
NET_TCP_TSO_WIN_DIVISOR=107,
NET_TCP_BIC_BETA=108,
NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR=109,
NET_TCP_CONG_CONTROL=110,
NET_TCP_ABC=111,
};
enum {
NET_IPV4_ROUTE_FLUSH=1,
NET_IPV4_ROUTE_MIN_DELAY=2,
NET_IPV4_ROUTE_MAX_DELAY=3,
NET_IPV4_ROUTE_GC_THRESH=4,
NET_IPV4_ROUTE_MAX_SIZE=5,
NET_IPV4_ROUTE_GC_MIN_INTERVAL=6,
NET_IPV4_ROUTE_GC_TIMEOUT=7,
NET_IPV4_ROUTE_GC_INTERVAL=8,
NET_IPV4_ROUTE_REDIRECT_LOAD=9,
NET_IPV4_ROUTE_REDIRECT_NUMBER=10,
NET_IPV4_ROUTE_REDIRECT_SILENCE=11,
NET_IPV4_ROUTE_ERROR_COST=12,
NET_IPV4_ROUTE_ERROR_BURST=13,
NET_IPV4_ROUTE_GC_ELASTICITY=14,
NET_IPV4_ROUTE_MTU_EXPIRES=15,
NET_IPV4_ROUTE_MIN_PMTU=16,
NET_IPV4_ROUTE_MIN_ADVMSS=17,
NET_IPV4_ROUTE_SECRET_INTERVAL=18,
NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS=19,
};
enum
{
NET_PROTO_CONF_ALL=-2,
NET_PROTO_CONF_DEFAULT=-3
/* And device ifindices ... */
};
enum
{
NET_IPV4_CONF_FORWARDING=1,
NET_IPV4_CONF_MC_FORWARDING=2,
NET_IPV4_CONF_PROXY_ARP=3,
NET_IPV4_CONF_ACCEPT_REDIRECTS=4,
NET_IPV4_CONF_SECURE_REDIRECTS=5,
NET_IPV4_CONF_SEND_REDIRECTS=6,
NET_IPV4_CONF_SHARED_MEDIA=7,
NET_IPV4_CONF_RP_FILTER=8,
NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE=9,
NET_IPV4_CONF_BOOTP_RELAY=10,
NET_IPV4_CONF_LOG_MARTIANS=11,
NET_IPV4_CONF_TAG=12,
NET_IPV4_CONF_ARPFILTER=13,
NET_IPV4_CONF_MEDIUM_ID=14,
NET_IPV4_CONF_NOXFRM=15,
NET_IPV4_CONF_NOPOLICY=16,
NET_IPV4_CONF_FORCE_IGMP_VERSION=17,
NET_IPV4_CONF_ARP_ANNOUNCE=18,
NET_IPV4_CONF_ARP_IGNORE=19,
NET_IPV4_CONF_PROMOTE_SECONDARIES=20,
__NET_IPV4_CONF_MAX
};
/* /proc/sys/net/ipv4/netfilter */
enum
{
NET_IPV4_NF_CONNTRACK_MAX=1,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT=2,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV=3,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED=4,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT=5,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT=6,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK=7,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT=8,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE=9,
NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT=10,
NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM=11,
NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT=12,
NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT=13,
NET_IPV4_NF_CONNTRACK_BUCKETS=14,
NET_IPV4_NF_CONNTRACK_LOG_INVALID=15,
NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS=16,
NET_IPV4_NF_CONNTRACK_TCP_LOOSE=17,
NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL=18,
NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS=19,
NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED=20,
NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT=21,
NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED=22,
NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED=23,
NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT=24,
NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD=25,
NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT=26,
NET_IPV4_NF_CONNTRACK_COUNT=27,
};
/* /proc/sys/net/ipv6 */
enum {
NET_IPV6_CONF=16,
NET_IPV6_NEIGH=17,
NET_IPV6_ROUTE=18,
NET_IPV6_ICMP=19,
NET_IPV6_BINDV6ONLY=20,
NET_IPV6_IP6FRAG_HIGH_THRESH=21,
NET_IPV6_IP6FRAG_LOW_THRESH=22,
NET_IPV6_IP6FRAG_TIME=23,
NET_IPV6_IP6FRAG_SECRET_INTERVAL=24,
NET_IPV6_MLD_MAX_MSF=25,
};
enum {
NET_IPV6_ROUTE_FLUSH=1,
NET_IPV6_ROUTE_GC_THRESH=2,
NET_IPV6_ROUTE_MAX_SIZE=3,
NET_IPV6_ROUTE_GC_MIN_INTERVAL=4,
NET_IPV6_ROUTE_GC_TIMEOUT=5,
NET_IPV6_ROUTE_GC_INTERVAL=6,
NET_IPV6_ROUTE_GC_ELASTICITY=7,
NET_IPV6_ROUTE_MTU_EXPIRES=8,
NET_IPV6_ROUTE_MIN_ADVMSS=9,
NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS=10
};
enum {
NET_IPV6_FORWARDING=1,
NET_IPV6_HOP_LIMIT=2,
NET_IPV6_MTU=3,
NET_IPV6_ACCEPT_RA=4,
NET_IPV6_ACCEPT_REDIRECTS=5,
NET_IPV6_AUTOCONF=6,
NET_IPV6_DAD_TRANSMITS=7,
NET_IPV6_RTR_SOLICITS=8,
NET_IPV6_RTR_SOLICIT_INTERVAL=9,
NET_IPV6_RTR_SOLICIT_DELAY=10,
NET_IPV6_USE_TEMPADDR=11,
NET_IPV6_TEMP_VALID_LFT=12,
NET_IPV6_TEMP_PREFERED_LFT=13,
NET_IPV6_REGEN_MAX_RETRY=14,
NET_IPV6_MAX_DESYNC_FACTOR=15,
NET_IPV6_MAX_ADDRESSES=16,
NET_IPV6_FORCE_MLD_VERSION=17,
__NET_IPV6_MAX
};
/* /proc/sys/net/ipv6/icmp */
enum {
NET_IPV6_ICMP_RATELIMIT=1
};
/* /proc/sys/net/<protocol>/neigh/<dev> */
enum {
NET_NEIGH_MCAST_SOLICIT=1,
NET_NEIGH_UCAST_SOLICIT=2,
NET_NEIGH_APP_SOLICIT=3,
NET_NEIGH_RETRANS_TIME=4,
NET_NEIGH_REACHABLE_TIME=5,
NET_NEIGH_DELAY_PROBE_TIME=6,
NET_NEIGH_GC_STALE_TIME=7,
NET_NEIGH_UNRES_QLEN=8,
NET_NEIGH_PROXY_QLEN=9,
NET_NEIGH_ANYCAST_DELAY=10,
NET_NEIGH_PROXY_DELAY=11,
NET_NEIGH_LOCKTIME=12,
NET_NEIGH_GC_INTERVAL=13,
NET_NEIGH_GC_THRESH1=14,
NET_NEIGH_GC_THRESH2=15,
NET_NEIGH_GC_THRESH3=16,
NET_NEIGH_RETRANS_TIME_MS=17,
NET_NEIGH_REACHABLE_TIME_MS=18,
__NET_NEIGH_MAX
};
/* /proc/sys/net/ipx */
enum {
NET_IPX_PPROP_BROADCASTING=1,
NET_IPX_FORWARDING=2
};
/* /proc/sys/net/llc */
enum {
NET_LLC2=1,
NET_LLC_STATION=2,
};
/* /proc/sys/net/llc/llc2 */
enum {
NET_LLC2_TIMEOUT=1,
};
/* /proc/sys/net/llc/station */
enum {
NET_LLC_STATION_ACK_TIMEOUT=1,
};
/* /proc/sys/net/llc/llc2/timeout */
enum {
NET_LLC2_ACK_TIMEOUT=1,
NET_LLC2_P_TIMEOUT=2,
NET_LLC2_REJ_TIMEOUT=3,
NET_LLC2_BUSY_TIMEOUT=4,
};
/* /proc/sys/net/appletalk */
enum {
NET_ATALK_AARP_EXPIRY_TIME=1,
NET_ATALK_AARP_TICK_TIME=2,
NET_ATALK_AARP_RETRANSMIT_LIMIT=3,
NET_ATALK_AARP_RESOLVE_TIME=4
};
/* /proc/sys/net/netrom */
enum {
NET_NETROM_DEFAULT_PATH_QUALITY=1,
NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER=2,
NET_NETROM_NETWORK_TTL_INITIALISER=3,
NET_NETROM_TRANSPORT_TIMEOUT=4,
NET_NETROM_TRANSPORT_MAXIMUM_TRIES=5,
NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY=6,
NET_NETROM_TRANSPORT_BUSY_DELAY=7,
NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE=8,
NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT=9,
NET_NETROM_ROUTING_CONTROL=10,
NET_NETROM_LINK_FAILS_COUNT=11,
NET_NETROM_RESET=12
};
/* /proc/sys/net/ax25 */
enum {
NET_AX25_IP_DEFAULT_MODE=1,
NET_AX25_DEFAULT_MODE=2,
NET_AX25_BACKOFF_TYPE=3,
NET_AX25_CONNECT_MODE=4,
NET_AX25_STANDARD_WINDOW=5,
NET_AX25_EXTENDED_WINDOW=6,
NET_AX25_T1_TIMEOUT=7,
NET_AX25_T2_TIMEOUT=8,
NET_AX25_T3_TIMEOUT=9,
NET_AX25_IDLE_TIMEOUT=10,
NET_AX25_N2=11,
NET_AX25_PACLEN=12,
NET_AX25_PROTOCOL=13,
NET_AX25_DAMA_SLAVE_TIMEOUT=14
};
/* /proc/sys/net/rose */
enum {
NET_ROSE_RESTART_REQUEST_TIMEOUT=1,
NET_ROSE_CALL_REQUEST_TIMEOUT=2,
NET_ROSE_RESET_REQUEST_TIMEOUT=3,
NET_ROSE_CLEAR_REQUEST_TIMEOUT=4,
NET_ROSE_ACK_HOLD_BACK_TIMEOUT=5,
NET_ROSE_ROUTING_CONTROL=6,
NET_ROSE_LINK_FAIL_TIMEOUT=7,
NET_ROSE_MAX_VCS=8,
NET_ROSE_WINDOW_SIZE=9,
NET_ROSE_NO_ACTIVITY_TIMEOUT=10
};
/* /proc/sys/net/x25 */
enum {
NET_X25_RESTART_REQUEST_TIMEOUT=1,
NET_X25_CALL_REQUEST_TIMEOUT=2,
NET_X25_RESET_REQUEST_TIMEOUT=3,
NET_X25_CLEAR_REQUEST_TIMEOUT=4,
NET_X25_ACK_HOLD_BACK_TIMEOUT=5
};
/* /proc/sys/net/token-ring */
enum
{
NET_TR_RIF_TIMEOUT=1
};
/* /proc/sys/net/decnet/ */
enum {
NET_DECNET_NODE_TYPE = 1,
NET_DECNET_NODE_ADDRESS = 2,
NET_DECNET_NODE_NAME = 3,
NET_DECNET_DEFAULT_DEVICE = 4,
NET_DECNET_TIME_WAIT = 5,
NET_DECNET_DN_COUNT = 6,
NET_DECNET_DI_COUNT = 7,
NET_DECNET_DR_COUNT = 8,
NET_DECNET_DST_GC_INTERVAL = 9,
NET_DECNET_CONF = 10,
NET_DECNET_NO_FC_MAX_CWND = 11,
NET_DECNET_DEBUG_LEVEL = 255
};
/* /proc/sys/net/decnet/conf/<dev> */
enum {
NET_DECNET_CONF_LOOPBACK = -2,
NET_DECNET_CONF_DDCMP = -3,
NET_DECNET_CONF_PPP = -4,
NET_DECNET_CONF_X25 = -5,
NET_DECNET_CONF_GRE = -6,
NET_DECNET_CONF_ETHER = -7
/* ... and ifindex of devices */
};
/* /proc/sys/net/decnet/conf/<dev>/ */
enum {
NET_DECNET_CONF_DEV_PRIORITY = 1,
NET_DECNET_CONF_DEV_T1 = 2,
NET_DECNET_CONF_DEV_T2 = 3,
NET_DECNET_CONF_DEV_T3 = 4,
NET_DECNET_CONF_DEV_FORWARDING = 5,
NET_DECNET_CONF_DEV_BLKSIZE = 6,
NET_DECNET_CONF_DEV_STATE = 7
};
/* /proc/sys/net/sctp */
enum {
NET_SCTP_RTO_INITIAL = 1,
NET_SCTP_RTO_MIN = 2,
NET_SCTP_RTO_MAX = 3,
NET_SCTP_RTO_ALPHA = 4,
NET_SCTP_RTO_BETA = 5,
NET_SCTP_VALID_COOKIE_LIFE = 6,
NET_SCTP_ASSOCIATION_MAX_RETRANS = 7,
NET_SCTP_PATH_MAX_RETRANS = 8,
NET_SCTP_MAX_INIT_RETRANSMITS = 9,
NET_SCTP_HB_INTERVAL = 10,
NET_SCTP_PRESERVE_ENABLE = 11,
NET_SCTP_MAX_BURST = 12,
NET_SCTP_ADDIP_ENABLE = 13,
NET_SCTP_PRSCTP_ENABLE = 14,
NET_SCTP_SNDBUF_POLICY = 15,
NET_SCTP_SACK_TIMEOUT = 16,
};
/* /proc/sys/net/bridge */
enum {
NET_BRIDGE_NF_CALL_ARPTABLES = 1,
NET_BRIDGE_NF_CALL_IPTABLES = 2,
NET_BRIDGE_NF_CALL_IP6TABLES = 3,
NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4,
};
/* CTL_PROC names: */
/* CTL_FS names: */
enum
{
FS_NRINODE=1, /* int:current number of allocated inodes */
FS_STATINODE=2,
FS_MAXINODE=3, /* int:maximum number of inodes that can be allocated */
FS_NRDQUOT=4, /* int:current number of allocated dquots */
FS_MAXDQUOT=5, /* int:maximum number of dquots that can be allocated */
FS_NRFILE=6, /* int:current number of allocated filedescriptors */
FS_MAXFILE=7, /* int:maximum number of filedescriptors that can be allocated */
FS_DENTRY=8,
FS_NRSUPER=9, /* int:current number of allocated super_blocks */
FS_MAXSUPER=10, /* int:maximum number of super_blocks that can be allocated */
FS_OVERFLOWUID=11, /* int: overflow UID */
FS_OVERFLOWGID=12, /* int: overflow GID */
FS_LEASES=13, /* int: leases enabled */
FS_DIR_NOTIFY=14, /* int: directory notification enabled */
FS_LEASE_TIME=15, /* int: maximum time to wait for a lease break */
FS_DQSTATS=16, /* disc quota usage statistics and control */
FS_XFS=17, /* struct: control xfs parameters */
FS_AIO_NR=18, /* current system-wide number of aio requests */
FS_AIO_MAX_NR=19, /* system-wide maximum number of aio requests */
FS_INOTIFY=20, /* inotify submenu */
};
/* /proc/sys/fs/quota/ */
enum {
FS_DQ_LOOKUPS = 1,
FS_DQ_DROPS = 2,
FS_DQ_READS = 3,
FS_DQ_WRITES = 4,
FS_DQ_CACHE_HITS = 5,
FS_DQ_ALLOCATED = 6,
FS_DQ_FREE = 7,
FS_DQ_SYNCS = 8,
FS_DQ_WARNINGS = 9,
};
/* CTL_DEBUG names: */
/* CTL_DEV names: */
enum {
DEV_CDROM=1,
DEV_HWMON=2,
DEV_PARPORT=3,
DEV_RAID=4,
DEV_MAC_HID=5,
DEV_SCSI=6,
DEV_IPMI=7,
};
/* /proc/sys/dev/cdrom */
enum {
DEV_CDROM_INFO=1,
DEV_CDROM_AUTOCLOSE=2,
DEV_CDROM_AUTOEJECT=3,
DEV_CDROM_DEBUG=4,
DEV_CDROM_LOCK=5,
DEV_CDROM_CHECK_MEDIA=6
};
/* /proc/sys/dev/parport */
enum {
DEV_PARPORT_DEFAULT=-3
};
/* /proc/sys/dev/raid */
enum {
DEV_RAID_SPEED_LIMIT_MIN=1,
DEV_RAID_SPEED_LIMIT_MAX=2
};
/* /proc/sys/dev/parport/default */
enum {
DEV_PARPORT_DEFAULT_TIMESLICE=1,
DEV_PARPORT_DEFAULT_SPINTIME=2
};
/* /proc/sys/dev/parport/parport n */
enum {
DEV_PARPORT_SPINTIME=1,
DEV_PARPORT_BASE_ADDR=2,
DEV_PARPORT_IRQ=3,
DEV_PARPORT_DMA=4,
DEV_PARPORT_MODES=5,
DEV_PARPORT_DEVICES=6,
DEV_PARPORT_AUTOPROBE=16
};
/* /proc/sys/dev/parport/parport n/devices/ */
enum {
DEV_PARPORT_DEVICES_ACTIVE=-3,
};
/* /proc/sys/dev/parport/parport n/devices/device n */
enum {
DEV_PARPORT_DEVICE_TIMESLICE=1,
};
/* /proc/sys/dev/mac_hid */
enum {
DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES=1,
DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES=2,
DEV_MAC_HID_MOUSE_BUTTON_EMULATION=3,
DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE=4,
DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE=5,
DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES=6
};
/* /proc/sys/dev/scsi */
enum {
DEV_SCSI_LOGGING_LEVEL=1,
};
/* /proc/sys/dev/ipmi */
enum {
DEV_IPMI_POWEROFF_POWERCYCLE=1,
};
/* /proc/sys/abi */
enum
{
ABI_DEFHANDLER_COFF=1, /* default handler for coff binaries */
ABI_DEFHANDLER_ELF=2, /* default handler for ELF binaries */
ABI_DEFHANDLER_LCALL7=3,/* default handler for procs using lcall7 */
ABI_DEFHANDLER_LIBCSO=4,/* default handler for an libc.so ELF interp */
ABI_TRACE=5, /* tracing flags */
ABI_FAKE_UTSNAME=6, /* fake target utsname information */
};
#ifdef __KERNEL__
extern void sysctl_init(void);
typedef struct ctl_table ctl_table;
typedef int ctl_handler (ctl_table *table, int __user *name, int nlen,
void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen,
void **context);
typedef int proc_handler (ctl_table *ctl, int write, struct file * filp,
void __user *buffer, size_t *lenp, loff_t *ppos);
extern int proc_dostring(ctl_table *, int, struct file *,
void __user *, size_t *, loff_t *);
extern int proc_dointvec(ctl_table *, int, struct file *,
void __user *, size_t *, loff_t *);
extern int proc_dointvec_bset(ctl_table *, int, struct file *,
void __user *, size_t *, loff_t *);
extern int proc_dointvec_minmax(ctl_table *, int, struct file *,
void __user *, size_t *, loff_t *);
extern int proc_dointvec_jiffies(ctl_table *, int, struct file *,
void __user *, size_t *, loff_t *);
extern int proc_dointvec_userhz_jiffies(ctl_table *, int, struct file *,
void __user *, size_t *, loff_t *);
extern int proc_dointvec_ms_jiffies(ctl_table *, int, struct file *,
void __user *, size_t *, loff_t *);
extern int proc_doulongvec_minmax(ctl_table *, int, struct file *,
void __user *, size_t *, loff_t *);
extern int proc_doulongvec_ms_jiffies_minmax(ctl_table *table, int,
struct file *, void __user *, size_t *, loff_t *);
extern int do_sysctl (int __user *name, int nlen,
void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen);
extern int do_sysctl_strategy (ctl_table *table,
int __user *name, int nlen,
void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen, void ** context);
extern ctl_handler sysctl_string;
extern ctl_handler sysctl_intvec;
extern ctl_handler sysctl_jiffies;
extern ctl_handler sysctl_ms_jiffies;
/*
* Register a set of sysctl names by calling register_sysctl_table
* with an initialised array of ctl_table's. An entry with zero
* ctl_name terminates the table. table->de will be set up by the
* registration and need not be initialised in advance.
*
* sysctl names can be mirrored automatically under /proc/sys. The
* procname supplied controls /proc naming.
*
* The table's mode will be honoured both for sys_sysctl(2) and
* proc-fs access.
*
* Leaf nodes in the sysctl tree will be represented by a single file
* under /proc; non-leaf nodes will be represented by directories. A
* null procname disables /proc mirroring at this node.
*
* sysctl(2) can automatically manage read and write requests through
* the sysctl table. The data and maxlen fields of the ctl_table
* struct enable minimal validation of the values being written to be
* performed, and the mode field allows minimal authentication.
*
* More sophisticated management can be enabled by the provision of a
* strategy routine with the table entry. This will be called before
* any automatic read or write of the data is performed.
*
* The strategy routine may return:
* <0: Error occurred (error is passed to user process)
* 0: OK - proceed with automatic read or write.
* >0: OK - read or write has been done by the strategy routine, so
* return immediately.
*
* There must be a proc_handler routine for any terminal nodes
* mirrored under /proc/sys (non-terminals are handled by a built-in
* directory handler). Several default handlers are available to
* cover common cases.
*/
/* A sysctl table is an array of struct ctl_table: */
struct ctl_table
{
int ctl_name; /* Binary ID */
const char *procname; /* Text ID for /proc/sys, or zero */
void *data;
int maxlen;
mode_t mode;
ctl_table *child;
proc_handler *proc_handler; /* Callback for text formatting */
ctl_handler *strategy; /* Callback function for all r/w */
struct proc_dir_entry *de; /* /proc control block */
void *extra1;
void *extra2;
};
/* struct ctl_table_header is used to maintain dynamic lists of
ctl_table trees. */
struct ctl_table_header
{
ctl_table *ctl_table;
struct list_head ctl_entry;
int used;
struct completion *unregistering;
};
struct ctl_table_header * register_sysctl_table(ctl_table * table,
int insert_at_head);
void unregister_sysctl_table(struct ctl_table_header * table);
#else /* __KERNEL__ */
#endif /* __KERNEL__ */
#endif /* _LINUX_SYSCTL_H */
