// SPDX-License-Identifier: GPL-2.0

  #include <linux/stat.h>
  #include <linux/sysctl.h>

  #include "../fs/xfs/xfs_sysctl.h"

  #include <linux/sunrpc/debug.h>
  #include <linux/string.h>

  #include <linux/syscalls.h>
  #include <linux/namei.h>
  #include <linux/mount.h>
  #include <linux/fs.h>
  #include <linux/nsproxy.h>
  #include <linux/pid_namespace.h>
  #include <linux/file.h>
  #include <linux/ctype.h>

  #include <linux/netdevice.h>

  #include <linux/kernel.h>

  #include <linux/uuid.h>

  #include <linux/slab.h>

  #include <linux/compat.h>

  #ifdef CONFIG_SYSCTL_SYSCALL

  struct bin_table;
  typedef ssize_t bin_convert_t(struct file *file,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen);
  
  static bin_convert_t bin_dir;
  static bin_convert_t bin_string;
  static bin_convert_t bin_intvec;
  static bin_convert_t bin_ulongvec;
  static bin_convert_t bin_uuid;
  static bin_convert_t bin_dn_node_address;
  
  #define CTL_DIR   bin_dir
  #define CTL_STR   bin_string
  #define CTL_INT   bin_intvec
  #define CTL_ULONG bin_ulongvec
  #define CTL_UUID  bin_uuid
  #define CTL_DNADR bin_dn_node_address
  
  #define BUFSZ 256
  
  struct bin_table {
  	bin_convert_t		*convert;
  	int			ctl_name;
  	const char		*procname;
  	const struct bin_table	*child;
  };
  
  static const struct bin_table bin_random_table[] = {
  	{ CTL_INT,	RANDOM_POOLSIZE,	"poolsize" },
  	{ CTL_INT,	RANDOM_ENTROPY_COUNT,	"entropy_avail" },
  	{ CTL_INT,	RANDOM_READ_THRESH,	"read_wakeup_threshold" },
  	{ CTL_INT,	RANDOM_WRITE_THRESH,	"write_wakeup_threshold" },
  	{ CTL_UUID,	RANDOM_BOOT_ID,		"boot_id" },
  	{ CTL_UUID,	RANDOM_UUID,		"uuid" },
  	{}
  };
  
  static const struct bin_table bin_pty_table[] = {
  	{ CTL_INT,	PTY_MAX,	"max" },
  	{ CTL_INT,	PTY_NR,		"nr" },
  	{}
  };
  
  static const struct bin_table bin_kern_table[] = {
  	{ CTL_STR,	KERN_OSTYPE,			"ostype" },
  	{ CTL_STR,	KERN_OSRELEASE,			"osrelease" },
  	/* KERN_OSREV not used */
  	{ CTL_STR,	KERN_VERSION,			"version" },
  	/* KERN_SECUREMASK not used */
  	/* KERN_PROF not used */
  	{ CTL_STR,	KERN_NODENAME,			"hostname" },
  	{ CTL_STR,	KERN_DOMAINNAME,		"domainname" },
  
  	{ CTL_INT,	KERN_PANIC,			"panic" },
  	{ CTL_INT,	KERN_REALROOTDEV,		"real-root-dev" },
  
  	{ CTL_STR,	KERN_SPARC_REBOOT,		"reboot-cmd" },
  	{ CTL_INT,	KERN_CTLALTDEL,			"ctrl-alt-del" },
  	{ CTL_INT,	KERN_PRINTK,			"printk" },
  
  	/* KERN_NAMETRANS not used */
  	/* KERN_PPC_HTABRECLAIM not used */
  	/* KERN_PPC_ZEROPAGED not used */
  	{ CTL_INT,	KERN_PPC_POWERSAVE_NAP,		"powersave-nap" },
  
  	{ CTL_STR,	KERN_MODPROBE,			"modprobe" },
  	{ CTL_INT,	KERN_SG_BIG_BUFF,		"sg-big-buff" },
  	{ CTL_INT,	KERN_ACCT,			"acct" },
  	/* KERN_PPC_L2CR "l2cr" no longer used */
  
  	/* KERN_RTSIGNR not used */
  	/* KERN_RTSIGMAX not used */
  
  	{ CTL_ULONG,	KERN_SHMMAX,			"shmmax" },
  	{ CTL_INT,	KERN_MSGMAX,			"msgmax" },
  	{ CTL_INT,	KERN_MSGMNB,			"msgmnb" },
  	/* KERN_MSGPOOL not used*/
  	{ CTL_INT,	KERN_SYSRQ,			"sysrq" },
  	{ CTL_INT,	KERN_MAX_THREADS,		"threads-max" },
  	{ CTL_DIR,	KERN_RANDOM,			"random",	bin_random_table },
  	{ CTL_ULONG,	KERN_SHMALL,			"shmall" },
  	{ CTL_INT,	KERN_MSGMNI,			"msgmni" },
  	{ CTL_INT,	KERN_SEM,			"sem" },
  	{ CTL_INT,	KERN_SPARC_STOP_A,		"stop-a" },
  	{ CTL_INT,	KERN_SHMMNI,			"shmmni" },
  
  	{ CTL_INT,	KERN_OVERFLOWUID,		"overflowuid" },
  	{ CTL_INT,	KERN_OVERFLOWGID,		"overflowgid" },
  
  	{ CTL_STR,	KERN_HOTPLUG,			"hotplug", },
  	{ CTL_INT,	KERN_IEEE_EMULATION_WARNINGS,	"ieee_emulation_warnings" },
  
  	{ CTL_INT,	KERN_S390_USER_DEBUG_LOGGING,	"userprocess_debug" },
  	{ CTL_INT,	KERN_CORE_USES_PID,		"core_uses_pid" },
  	/* KERN_TAINTED "tainted" no longer used */
  	{ CTL_INT,	KERN_CADPID,			"cad_pid" },
  	{ CTL_INT,	KERN_PIDMAX,			"pid_max" },
  	{ CTL_STR,	KERN_CORE_PATTERN,		"core_pattern" },
  	{ CTL_INT,	KERN_PANIC_ON_OOPS,		"panic_on_oops" },
  	{ CTL_INT,	KERN_HPPA_PWRSW,		"soft-power" },
  	{ CTL_INT,	KERN_HPPA_UNALIGNED,		"unaligned-trap" },
  
  	{ CTL_INT,	KERN_PRINTK_RATELIMIT,		"printk_ratelimit" },
  	{ CTL_INT,	KERN_PRINTK_RATELIMIT_BURST,	"printk_ratelimit_burst" },
  
  	{ CTL_DIR,	KERN_PTY,			"pty",		bin_pty_table },
  	{ CTL_INT,	KERN_NGROUPS_MAX,		"ngroups_max" },
  	{ CTL_INT,	KERN_SPARC_SCONS_PWROFF,	"scons-poweroff" },
  	/* KERN_HZ_TIMER "hz_timer" no longer used */
  	{ CTL_INT,	KERN_UNKNOWN_NMI_PANIC,		"unknown_nmi_panic" },
  	{ CTL_INT,	KERN_BOOTLOADER_TYPE,		"bootloader_type" },
  	{ CTL_INT,	KERN_RANDOMIZE,			"randomize_va_space" },
  
  	{ CTL_INT,	KERN_SPIN_RETRY,		"spin_retry" },
  	/* KERN_ACPI_VIDEO_FLAGS "acpi_video_flags" no longer used */
  	{ CTL_INT,	KERN_IA64_UNALIGNED,		"ignore-unaligned-usertrap" },
  	{ CTL_INT,	KERN_COMPAT_LOG,		"compat-log" },
  	{ CTL_INT,	KERN_MAX_LOCK_DEPTH,		"max_lock_depth" },

  	{ CTL_INT,	KERN_PANIC_ON_NMI,		"panic_on_unrecovered_nmi" },

  	{ CTL_INT,	KERN_PANIC_ON_WARN,		"panic_on_warn" },

  	{ CTL_ULONG,	KERN_PANIC_PRINT,		"panic_print" },

  	{}
  };
  
  static const struct bin_table bin_vm_table[] = {
  	{ CTL_INT,	VM_OVERCOMMIT_MEMORY,		"overcommit_memory" },
  	{ CTL_INT,	VM_PAGE_CLUSTER,		"page-cluster" },
  	{ CTL_INT,	VM_DIRTY_BACKGROUND,		"dirty_background_ratio" },
  	{ CTL_INT,	VM_DIRTY_RATIO,			"dirty_ratio" },
  	/* VM_DIRTY_WB_CS "dirty_writeback_centisecs" no longer used */
  	/* VM_DIRTY_EXPIRE_CS "dirty_expire_centisecs" no longer used */

  	/* VM_NR_PDFLUSH_THREADS "nr_pdflush_threads" no longer used */

  	{ CTL_INT,	VM_OVERCOMMIT_RATIO,		"overcommit_ratio" },
  	/* VM_PAGEBUF unused */
  	/* VM_HUGETLB_PAGES "nr_hugepages" no longer used */
  	{ CTL_INT,	VM_SWAPPINESS,			"swappiness" },
  	{ CTL_INT,	VM_LOWMEM_RESERVE_RATIO,	"lowmem_reserve_ratio" },
  	{ CTL_INT,	VM_MIN_FREE_KBYTES,		"min_free_kbytes" },
  	{ CTL_INT,	VM_MAX_MAP_COUNT,		"max_map_count" },
  	{ CTL_INT,	VM_LAPTOP_MODE,			"laptop_mode" },
  	{ CTL_INT,	VM_BLOCK_DUMP,			"block_dump" },
  	{ CTL_INT,	VM_HUGETLB_GROUP,		"hugetlb_shm_group" },
  	{ CTL_INT,	VM_VFS_CACHE_PRESSURE,	"vfs_cache_pressure" },
  	{ CTL_INT,	VM_LEGACY_VA_LAYOUT,		"legacy_va_layout" },
  	/* VM_SWAP_TOKEN_TIMEOUT unused */
  	{ CTL_INT,	VM_DROP_PAGECACHE,		"drop_caches" },
  	{ CTL_INT,	VM_PERCPU_PAGELIST_FRACTION,	"percpu_pagelist_fraction" },
  	{ CTL_INT,	VM_ZONE_RECLAIM_MODE,		"zone_reclaim_mode" },
  	{ CTL_INT,	VM_MIN_UNMAPPED,		"min_unmapped_ratio" },
  	{ CTL_INT,	VM_PANIC_ON_OOM,		"panic_on_oom" },
  	{ CTL_INT,	VM_VDSO_ENABLED,		"vdso_enabled" },
  	{ CTL_INT,	VM_MIN_SLAB,			"min_slab_ratio" },
  
  	{}
  };
  
  static const struct bin_table bin_net_core_table[] = {
  	{ CTL_INT,	NET_CORE_WMEM_MAX,	"wmem_max" },
  	{ CTL_INT,	NET_CORE_RMEM_MAX,	"rmem_max" },
  	{ CTL_INT,	NET_CORE_WMEM_DEFAULT,	"wmem_default" },
  	{ CTL_INT,	NET_CORE_RMEM_DEFAULT,	"rmem_default" },
  	/* NET_CORE_DESTROY_DELAY unused */
  	{ CTL_INT,	NET_CORE_MAX_BACKLOG,	"netdev_max_backlog" },
  	/* NET_CORE_FASTROUTE unused */
  	{ CTL_INT,	NET_CORE_MSG_COST,	"message_cost" },
  	{ CTL_INT,	NET_CORE_MSG_BURST,	"message_burst" },
  	{ CTL_INT,	NET_CORE_OPTMEM_MAX,	"optmem_max" },
  	/* NET_CORE_HOT_LIST_LENGTH unused */
  	/* NET_CORE_DIVERT_VERSION unused */
  	/* NET_CORE_NO_CONG_THRESH unused */
  	/* NET_CORE_NO_CONG unused */
  	/* NET_CORE_LO_CONG unused */
  	/* NET_CORE_MOD_CONG unused */
  	{ CTL_INT,	NET_CORE_DEV_WEIGHT,	"dev_weight" },
  	{ CTL_INT,	NET_CORE_SOMAXCONN,	"somaxconn" },
  	{ CTL_INT,	NET_CORE_BUDGET,	"netdev_budget" },
  	{ CTL_INT,	NET_CORE_AEVENT_ETIME,	"xfrm_aevent_etime" },
  	{ CTL_INT,	NET_CORE_AEVENT_RSEQTH,	"xfrm_aevent_rseqth" },
  	{ CTL_INT,	NET_CORE_WARNINGS,	"warnings" },
  	{},
  };
  
  static const struct bin_table bin_net_unix_table[] = {
  	/* NET_UNIX_DESTROY_DELAY unused */
  	/* NET_UNIX_DELETE_DELAY unused */
  	{ CTL_INT,	NET_UNIX_MAX_DGRAM_QLEN,	"max_dgram_qlen" },
  	{}
  };
  
  static const struct bin_table bin_net_ipv4_route_table[] = {
  	{ CTL_INT,	NET_IPV4_ROUTE_FLUSH,			"flush" },
  	/* NET_IPV4_ROUTE_MIN_DELAY "min_delay" no longer used */
  	/* NET_IPV4_ROUTE_MAX_DELAY "max_delay" no longer used */
  	{ CTL_INT,	NET_IPV4_ROUTE_GC_THRESH,		"gc_thresh" },
  	{ CTL_INT,	NET_IPV4_ROUTE_MAX_SIZE,		"max_size" },
  	{ CTL_INT,	NET_IPV4_ROUTE_GC_MIN_INTERVAL,		"gc_min_interval" },
  	{ CTL_INT,	NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS,	"gc_min_interval_ms" },
  	{ CTL_INT,	NET_IPV4_ROUTE_GC_TIMEOUT,		"gc_timeout" },

  	/* NET_IPV4_ROUTE_GC_INTERVAL "gc_interval" no longer used */

  	{ CTL_INT,	NET_IPV4_ROUTE_REDIRECT_LOAD,		"redirect_load" },
  	{ CTL_INT,	NET_IPV4_ROUTE_REDIRECT_NUMBER,		"redirect_number" },
  	{ CTL_INT,	NET_IPV4_ROUTE_REDIRECT_SILENCE,	"redirect_silence" },
  	{ CTL_INT,	NET_IPV4_ROUTE_ERROR_COST,		"error_cost" },
  	{ CTL_INT,	NET_IPV4_ROUTE_ERROR_BURST,		"error_burst" },
  	{ CTL_INT,	NET_IPV4_ROUTE_GC_ELASTICITY,		"gc_elasticity" },
  	{ CTL_INT,	NET_IPV4_ROUTE_MTU_EXPIRES,		"mtu_expires" },
  	{ CTL_INT,	NET_IPV4_ROUTE_MIN_PMTU,		"min_pmtu" },
  	{ CTL_INT,	NET_IPV4_ROUTE_MIN_ADVMSS,		"min_adv_mss" },

  	{}
  };
  
  static const struct bin_table bin_net_ipv4_conf_vars_table[] = {
  	{ CTL_INT,	NET_IPV4_CONF_FORWARDING,		"forwarding" },
  	{ CTL_INT,	NET_IPV4_CONF_MC_FORWARDING,		"mc_forwarding" },
  
  	{ CTL_INT,	NET_IPV4_CONF_ACCEPT_REDIRECTS,		"accept_redirects" },
  	{ CTL_INT,	NET_IPV4_CONF_SECURE_REDIRECTS,		"secure_redirects" },
  	{ CTL_INT,	NET_IPV4_CONF_SEND_REDIRECTS,		"send_redirects" },
  	{ CTL_INT,	NET_IPV4_CONF_SHARED_MEDIA,		"shared_media" },
  	{ CTL_INT,	NET_IPV4_CONF_RP_FILTER,		"rp_filter" },
  	{ CTL_INT,	NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE,	"accept_source_route" },
  	{ CTL_INT,	NET_IPV4_CONF_PROXY_ARP,		"proxy_arp" },
  	{ CTL_INT,	NET_IPV4_CONF_MEDIUM_ID,		"medium_id" },
  	{ CTL_INT,	NET_IPV4_CONF_BOOTP_RELAY,		"bootp_relay" },
  	{ CTL_INT,	NET_IPV4_CONF_LOG_MARTIANS,		"log_martians" },
  	{ CTL_INT,	NET_IPV4_CONF_TAG,			"tag" },
  	{ CTL_INT,	NET_IPV4_CONF_ARPFILTER,		"arp_filter" },
  	{ CTL_INT,	NET_IPV4_CONF_ARP_ANNOUNCE,		"arp_announce" },
  	{ CTL_INT,	NET_IPV4_CONF_ARP_IGNORE,		"arp_ignore" },
  	{ CTL_INT,	NET_IPV4_CONF_ARP_ACCEPT,		"arp_accept" },
  	{ CTL_INT,	NET_IPV4_CONF_ARP_NOTIFY,		"arp_notify" },
  
  	{ CTL_INT,	NET_IPV4_CONF_NOXFRM,			"disable_xfrm" },
  	{ CTL_INT,	NET_IPV4_CONF_NOPOLICY,			"disable_policy" },
  	{ CTL_INT,	NET_IPV4_CONF_FORCE_IGMP_VERSION,	"force_igmp_version" },
  	{ CTL_INT,	NET_IPV4_CONF_PROMOTE_SECONDARIES,	"promote_secondaries" },
  	{}
  };
  
  static const struct bin_table bin_net_ipv4_conf_table[] = {
  	{ CTL_DIR,	NET_PROTO_CONF_ALL,	"all",		bin_net_ipv4_conf_vars_table },
  	{ CTL_DIR,	NET_PROTO_CONF_DEFAULT,	"default",	bin_net_ipv4_conf_vars_table },
  	{ CTL_DIR,	0, NULL, bin_net_ipv4_conf_vars_table },
  	{}
  };
  
  static const struct bin_table bin_net_neigh_vars_table[] = {
  	{ CTL_INT,	NET_NEIGH_MCAST_SOLICIT,	"mcast_solicit" },
  	{ CTL_INT,	NET_NEIGH_UCAST_SOLICIT,	"ucast_solicit" },
  	{ CTL_INT,	NET_NEIGH_APP_SOLICIT,		"app_solicit" },
  	/* NET_NEIGH_RETRANS_TIME "retrans_time" no longer used */
  	{ CTL_INT,	NET_NEIGH_REACHABLE_TIME,	"base_reachable_time" },
  	{ CTL_INT,	NET_NEIGH_DELAY_PROBE_TIME,	"delay_first_probe_time" },
  	{ CTL_INT,	NET_NEIGH_GC_STALE_TIME,	"gc_stale_time" },
  	{ CTL_INT,	NET_NEIGH_UNRES_QLEN,		"unres_qlen" },
  	{ CTL_INT,	NET_NEIGH_PROXY_QLEN,		"proxy_qlen" },
  	/* NET_NEIGH_ANYCAST_DELAY "anycast_delay" no longer used */
  	/* NET_NEIGH_PROXY_DELAY "proxy_delay" no longer used */
  	/* NET_NEIGH_LOCKTIME "locktime" no longer used */
  	{ CTL_INT,	NET_NEIGH_GC_INTERVAL,		"gc_interval" },
  	{ CTL_INT,	NET_NEIGH_GC_THRESH1,		"gc_thresh1" },
  	{ CTL_INT,	NET_NEIGH_GC_THRESH2,		"gc_thresh2" },
  	{ CTL_INT,	NET_NEIGH_GC_THRESH3,		"gc_thresh3" },
  	{ CTL_INT,	NET_NEIGH_RETRANS_TIME_MS,	"retrans_time_ms" },
  	{ CTL_INT,	NET_NEIGH_REACHABLE_TIME_MS,	"base_reachable_time_ms" },
  	{}
  };
  
  static const struct bin_table bin_net_neigh_table[] = {
  	{ CTL_DIR,	NET_PROTO_CONF_DEFAULT, "default", bin_net_neigh_vars_table },
  	{ CTL_DIR,	0, NULL, bin_net_neigh_vars_table },
  	{}
  };
  
  static const struct bin_table bin_net_ipv4_netfilter_table[] = {
  	{ CTL_INT,	NET_IPV4_NF_CONNTRACK_MAX,		"ip_conntrack_max" },
  
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT "ip_conntrack_tcp_timeout_syn_sent" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV "ip_conntrack_tcp_timeout_syn_recv" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED "ip_conntrack_tcp_timeout_established" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT "ip_conntrack_tcp_timeout_fin_wait" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT	"ip_conntrack_tcp_timeout_close_wait" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK "ip_conntrack_tcp_timeout_last_ack" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT "ip_conntrack_tcp_timeout_time_wait" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE "ip_conntrack_tcp_timeout_close" no longer used */
  
  	/* NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT "ip_conntrack_udp_timeout" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM "ip_conntrack_udp_timeout_stream" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT "ip_conntrack_icmp_timeout" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT "ip_conntrack_generic_timeout" no longer used */
  
  	{ CTL_INT,	NET_IPV4_NF_CONNTRACK_BUCKETS,		"ip_conntrack_buckets" },
  	{ CTL_INT,	NET_IPV4_NF_CONNTRACK_LOG_INVALID,	"ip_conntrack_log_invalid" },
  	/* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS "ip_conntrack_tcp_timeout_max_retrans" no longer used */
  	{ CTL_INT,	NET_IPV4_NF_CONNTRACK_TCP_LOOSE,	"ip_conntrack_tcp_loose" },
  	{ CTL_INT,	NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL,	"ip_conntrack_tcp_be_liberal" },
  	{ CTL_INT,	NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS,	"ip_conntrack_tcp_max_retrans" },
  
  	/* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED "ip_conntrack_sctp_timeout_closed" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT "ip_conntrack_sctp_timeout_cookie_wait" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED "ip_conntrack_sctp_timeout_cookie_echoed" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED "ip_conntrack_sctp_timeout_established" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT "ip_conntrack_sctp_timeout_shutdown_sent" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD "ip_conntrack_sctp_timeout_shutdown_recd" no longer used */
  	/* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT "ip_conntrack_sctp_timeout_shutdown_ack_sent" no longer used */
  
  	{ CTL_INT,	NET_IPV4_NF_CONNTRACK_COUNT,		"ip_conntrack_count" },
  	{ CTL_INT,	NET_IPV4_NF_CONNTRACK_CHECKSUM,		"ip_conntrack_checksum" },
  	{}
  };
  
  static const struct bin_table bin_net_ipv4_table[] = {
  	{CTL_INT,	NET_IPV4_FORWARD,			"ip_forward" },
  
  	{ CTL_DIR,	NET_IPV4_CONF,		"conf",		bin_net_ipv4_conf_table },
  	{ CTL_DIR,	NET_IPV4_NEIGH,		"neigh",	bin_net_neigh_table },
  	{ CTL_DIR,	NET_IPV4_ROUTE,		"route",	bin_net_ipv4_route_table },
  	/* NET_IPV4_FIB_HASH unused */
  	{ CTL_DIR,	NET_IPV4_NETFILTER,	"netfilter",	bin_net_ipv4_netfilter_table },
  
  	{ CTL_INT,	NET_IPV4_TCP_TIMESTAMPS,		"tcp_timestamps" },
  	{ CTL_INT,	NET_IPV4_TCP_WINDOW_SCALING,		"tcp_window_scaling" },
  	{ CTL_INT,	NET_IPV4_TCP_SACK,			"tcp_sack" },
  	{ CTL_INT,	NET_IPV4_TCP_RETRANS_COLLAPSE,		"tcp_retrans_collapse" },
  	{ CTL_INT,	NET_IPV4_DEFAULT_TTL,			"ip_default_ttl" },
  	/* NET_IPV4_AUTOCONFIG unused */
  	{ CTL_INT,	NET_IPV4_NO_PMTU_DISC,			"ip_no_pmtu_disc" },
  	{ CTL_INT,	NET_IPV4_NONLOCAL_BIND,			"ip_nonlocal_bind" },
  	{ CTL_INT,	NET_IPV4_TCP_SYN_RETRIES,		"tcp_syn_retries" },
  	{ CTL_INT,	NET_TCP_SYNACK_RETRIES,			"tcp_synack_retries" },
  	{ CTL_INT,	NET_TCP_MAX_ORPHANS,			"tcp_max_orphans" },
  	{ CTL_INT,	NET_TCP_MAX_TW_BUCKETS,			"tcp_max_tw_buckets" },
  	{ CTL_INT,	NET_IPV4_DYNADDR,			"ip_dynaddr" },
  	{ CTL_INT,	NET_IPV4_TCP_KEEPALIVE_TIME,		"tcp_keepalive_time" },
  	{ CTL_INT,	NET_IPV4_TCP_KEEPALIVE_PROBES,		"tcp_keepalive_probes" },
  	{ CTL_INT,	NET_IPV4_TCP_KEEPALIVE_INTVL,		"tcp_keepalive_intvl" },
  	{ CTL_INT,	NET_IPV4_TCP_RETRIES1,			"tcp_retries1" },
  	{ CTL_INT,	NET_IPV4_TCP_RETRIES2,			"tcp_retries2" },
  	{ CTL_INT,	NET_IPV4_TCP_FIN_TIMEOUT,		"tcp_fin_timeout" },
  	{ CTL_INT,	NET_TCP_SYNCOOKIES,			"tcp_syncookies" },
  	{ CTL_INT,	NET_TCP_TW_RECYCLE,			"tcp_tw_recycle" },
  	{ CTL_INT,	NET_TCP_ABORT_ON_OVERFLOW,		"tcp_abort_on_overflow" },
  	{ CTL_INT,	NET_TCP_STDURG,				"tcp_stdurg" },
  	{ CTL_INT,	NET_TCP_RFC1337,			"tcp_rfc1337" },
  	{ CTL_INT,	NET_TCP_MAX_SYN_BACKLOG,		"tcp_max_syn_backlog" },
  	{ CTL_INT,	NET_IPV4_LOCAL_PORT_RANGE,		"ip_local_port_range" },
  	{ CTL_INT,	NET_IPV4_IGMP_MAX_MEMBERSHIPS,		"igmp_max_memberships" },
  	{ CTL_INT,	NET_IPV4_IGMP_MAX_MSF,			"igmp_max_msf" },
  	{ CTL_INT,	NET_IPV4_INET_PEER_THRESHOLD,		"inet_peer_threshold" },
  	{ CTL_INT,	NET_IPV4_INET_PEER_MINTTL,		"inet_peer_minttl" },
  	{ CTL_INT,	NET_IPV4_INET_PEER_MAXTTL,		"inet_peer_maxttl" },
  	{ CTL_INT,	NET_IPV4_INET_PEER_GC_MINTIME,		"inet_peer_gc_mintime" },
  	{ CTL_INT,	NET_IPV4_INET_PEER_GC_MAXTIME,		"inet_peer_gc_maxtime" },
  	{ CTL_INT,	NET_TCP_ORPHAN_RETRIES,			"tcp_orphan_retries" },
  	{ CTL_INT,	NET_TCP_FACK,				"tcp_fack" },
  	{ CTL_INT,	NET_TCP_REORDERING,			"tcp_reordering" },
  	{ CTL_INT,	NET_TCP_ECN,				"tcp_ecn" },
  	{ CTL_INT,	NET_TCP_DSACK,				"tcp_dsack" },
  	{ CTL_INT,	NET_TCP_MEM,				"tcp_mem" },
  	{ CTL_INT,	NET_TCP_WMEM,				"tcp_wmem" },
  	{ CTL_INT,	NET_TCP_RMEM,				"tcp_rmem" },
  	{ CTL_INT,	NET_TCP_APP_WIN,			"tcp_app_win" },
  	{ CTL_INT,	NET_TCP_ADV_WIN_SCALE,			"tcp_adv_win_scale" },
  	{ CTL_INT,	NET_TCP_TW_REUSE,			"tcp_tw_reuse" },
  	{ CTL_INT,	NET_TCP_FRTO,				"tcp_frto" },
  	{ CTL_INT,	NET_TCP_FRTO_RESPONSE,			"tcp_frto_response" },
  	{ CTL_INT,	NET_TCP_LOW_LATENCY,			"tcp_low_latency" },
  	{ CTL_INT,	NET_TCP_NO_METRICS_SAVE,		"tcp_no_metrics_save" },
  	{ CTL_INT,	NET_TCP_MODERATE_RCVBUF,		"tcp_moderate_rcvbuf" },
  	{ CTL_INT,	NET_TCP_TSO_WIN_DIVISOR,		"tcp_tso_win_divisor" },
  	{ CTL_STR,	NET_TCP_CONG_CONTROL,			"tcp_congestion_control" },

  	{ CTL_INT,	NET_TCP_MTU_PROBING,			"tcp_mtu_probing" },
  	{ CTL_INT,	NET_TCP_BASE_MSS,			"tcp_base_mss" },
  	{ CTL_INT,	NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS,	"tcp_workaround_signed_windows" },

  	{ CTL_INT,	NET_TCP_SLOW_START_AFTER_IDLE,		"tcp_slow_start_after_idle" },
  	{ CTL_INT,	NET_CIPSOV4_CACHE_ENABLE,		"cipso_cache_enable" },
  	{ CTL_INT,	NET_CIPSOV4_CACHE_BUCKET_SIZE,		"cipso_cache_bucket_size" },
  	{ CTL_INT,	NET_CIPSOV4_RBM_OPTFMT,			"cipso_rbm_optfmt" },
  	{ CTL_INT,	NET_CIPSOV4_RBM_STRICTVALID,		"cipso_rbm_strictvalid" },
  	/* NET_TCP_AVAIL_CONG_CONTROL "tcp_available_congestion_control" no longer used */
  	{ CTL_STR,	NET_TCP_ALLOWED_CONG_CONTROL,		"tcp_allowed_congestion_control" },
  	{ CTL_INT,	NET_TCP_MAX_SSTHRESH,			"tcp_max_ssthresh" },
  
  	{ CTL_INT,	NET_IPV4_ICMP_ECHO_IGNORE_ALL,		"icmp_echo_ignore_all" },
  	{ CTL_INT,	NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS,	"icmp_echo_ignore_broadcasts" },
  	{ CTL_INT,	NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES,	"icmp_ignore_bogus_error_responses" },
  	{ CTL_INT,	NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR,	"icmp_errors_use_inbound_ifaddr" },
  	{ CTL_INT,	NET_IPV4_ICMP_RATELIMIT,		"icmp_ratelimit" },
  	{ CTL_INT,	NET_IPV4_ICMP_RATEMASK,			"icmp_ratemask" },
  
  	{ CTL_INT,	NET_IPV4_IPFRAG_HIGH_THRESH,		"ipfrag_high_thresh" },
  	{ CTL_INT,	NET_IPV4_IPFRAG_LOW_THRESH,		"ipfrag_low_thresh" },
  	{ CTL_INT,	NET_IPV4_IPFRAG_TIME,			"ipfrag_time" },
  
  	{ CTL_INT,	NET_IPV4_IPFRAG_SECRET_INTERVAL,	"ipfrag_secret_interval" },
  	/* NET_IPV4_IPFRAG_MAX_DIST "ipfrag_max_dist" no longer used */
  
  	{ CTL_INT,	2088 /* NET_IPQ_QMAX */,		"ip_queue_maxlen" },
  
  	/* NET_TCP_DEFAULT_WIN_SCALE unused */
  	/* NET_TCP_BIC_BETA unused */
  	/* NET_IPV4_TCP_MAX_KA_PROBES unused */
  	/* NET_IPV4_IP_MASQ_DEBUG unused */
  	/* NET_TCP_SYN_TAILDROP unused */
  	/* NET_IPV4_ICMP_SOURCEQUENCH_RATE unused */
  	/* NET_IPV4_ICMP_DESTUNREACH_RATE unused */
  	/* NET_IPV4_ICMP_TIMEEXCEED_RATE unused */
  	/* NET_IPV4_ICMP_PARAMPROB_RATE unused */
  	/* NET_IPV4_ICMP_ECHOREPLY_RATE unused */
  	/* NET_IPV4_ALWAYS_DEFRAG unused */
  	{}
  };
  
  static const struct bin_table bin_net_ipx_table[] = {
  	{ CTL_INT,	NET_IPX_PPROP_BROADCASTING,	"ipx_pprop_broadcasting" },
  	/* NET_IPX_FORWARDING unused */
  	{}
  };
  
  static const struct bin_table bin_net_atalk_table[] = {
  	{ CTL_INT,	NET_ATALK_AARP_EXPIRY_TIME,		"aarp-expiry-time" },
  	{ CTL_INT,	NET_ATALK_AARP_TICK_TIME,		"aarp-tick-time" },
  	{ CTL_INT,	NET_ATALK_AARP_RETRANSMIT_LIMIT,	"aarp-retransmit-limit" },
  	{ CTL_INT,	NET_ATALK_AARP_RESOLVE_TIME,		"aarp-resolve-time" },
  	{},
  };
  
  static const struct bin_table bin_net_netrom_table[] = {
  	{ CTL_INT,	NET_NETROM_DEFAULT_PATH_QUALITY,		"default_path_quality" },
  	{ CTL_INT,	NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER,	"obsolescence_count_initialiser" },
  	{ CTL_INT,	NET_NETROM_NETWORK_TTL_INITIALISER,		"network_ttl_initialiser" },
  	{ CTL_INT,	NET_NETROM_TRANSPORT_TIMEOUT,			"transport_timeout" },
  	{ CTL_INT,	NET_NETROM_TRANSPORT_MAXIMUM_TRIES,		"transport_maximum_tries" },
  	{ CTL_INT,	NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY,		"transport_acknowledge_delay" },
  	{ CTL_INT,	NET_NETROM_TRANSPORT_BUSY_DELAY,		"transport_busy_delay" },
  	{ CTL_INT,	NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE,	"transport_requested_window_size" },
  	{ CTL_INT,	NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT,	"transport_no_activity_timeout" },
  	{ CTL_INT,	NET_NETROM_ROUTING_CONTROL,			"routing_control" },
  	{ CTL_INT,	NET_NETROM_LINK_FAILS_COUNT,			"link_fails_count" },
  	{ CTL_INT,	NET_NETROM_RESET,				"reset" },
  	{}
  };
  
  static const struct bin_table bin_net_ax25_param_table[] = {
  	{ CTL_INT,	NET_AX25_IP_DEFAULT_MODE,	"ip_default_mode" },
  	{ CTL_INT,	NET_AX25_DEFAULT_MODE,		"ax25_default_mode" },
  	{ CTL_INT,	NET_AX25_BACKOFF_TYPE,		"backoff_type" },
  	{ CTL_INT,	NET_AX25_CONNECT_MODE,		"connect_mode" },
  	{ CTL_INT,	NET_AX25_STANDARD_WINDOW,	"standard_window_size" },
  	{ CTL_INT,	NET_AX25_EXTENDED_WINDOW,	"extended_window_size" },
  	{ CTL_INT,	NET_AX25_T1_TIMEOUT,		"t1_timeout" },
  	{ CTL_INT,	NET_AX25_T2_TIMEOUT,		"t2_timeout" },
  	{ CTL_INT,	NET_AX25_T3_TIMEOUT,		"t3_timeout" },
  	{ CTL_INT,	NET_AX25_IDLE_TIMEOUT,		"idle_timeout" },
  	{ CTL_INT,	NET_AX25_N2,			"maximum_retry_count" },
  	{ CTL_INT,	NET_AX25_PACLEN,		"maximum_packet_length" },
  	{ CTL_INT,	NET_AX25_PROTOCOL,		"protocol" },
  	{ CTL_INT,	NET_AX25_DAMA_SLAVE_TIMEOUT,	"dama_slave_timeout" },
  	{}
  };
  
  static const struct bin_table bin_net_ax25_table[] = {
  	{ CTL_DIR,	0, NULL, bin_net_ax25_param_table },
  	{}
  };
  
  static const struct bin_table bin_net_rose_table[] = {
  	{ CTL_INT,	NET_ROSE_RESTART_REQUEST_TIMEOUT,	"restart_request_timeout" },
  	{ CTL_INT,	NET_ROSE_CALL_REQUEST_TIMEOUT,		"call_request_timeout" },
  	{ CTL_INT,	NET_ROSE_RESET_REQUEST_TIMEOUT,		"reset_request_timeout" },
  	{ CTL_INT,	NET_ROSE_CLEAR_REQUEST_TIMEOUT,		"clear_request_timeout" },
  	{ CTL_INT,	NET_ROSE_ACK_HOLD_BACK_TIMEOUT,		"acknowledge_hold_back_timeout" },
  	{ CTL_INT,	NET_ROSE_ROUTING_CONTROL,		"routing_control" },
  	{ CTL_INT,	NET_ROSE_LINK_FAIL_TIMEOUT,		"link_fail_timeout" },
  	{ CTL_INT,	NET_ROSE_MAX_VCS,			"maximum_virtual_circuits" },
  	{ CTL_INT,	NET_ROSE_WINDOW_SIZE,			"window_size" },
  	{ CTL_INT,	NET_ROSE_NO_ACTIVITY_TIMEOUT,		"no_activity_timeout" },
  	{}
  };
  
  static const struct bin_table bin_net_ipv6_conf_var_table[] = {
  	{ CTL_INT,	NET_IPV6_FORWARDING,			"forwarding" },
  	{ CTL_INT,	NET_IPV6_HOP_LIMIT,			"hop_limit" },
  	{ CTL_INT,	NET_IPV6_MTU,				"mtu" },
  	{ CTL_INT,	NET_IPV6_ACCEPT_RA,			"accept_ra" },
  	{ CTL_INT,	NET_IPV6_ACCEPT_REDIRECTS,		"accept_redirects" },
  	{ CTL_INT,	NET_IPV6_AUTOCONF,			"autoconf" },
  	{ CTL_INT,	NET_IPV6_DAD_TRANSMITS,			"dad_transmits" },
  	{ CTL_INT,	NET_IPV6_RTR_SOLICITS,			"router_solicitations" },
  	{ CTL_INT,	NET_IPV6_RTR_SOLICIT_INTERVAL,		"router_solicitation_interval" },
  	{ CTL_INT,	NET_IPV6_RTR_SOLICIT_DELAY,		"router_solicitation_delay" },
  	{ CTL_INT,	NET_IPV6_USE_TEMPADDR,			"use_tempaddr" },
  	{ CTL_INT,	NET_IPV6_TEMP_VALID_LFT,		"temp_valid_lft" },
  	{ CTL_INT,	NET_IPV6_TEMP_PREFERED_LFT,		"temp_prefered_lft" },
  	{ CTL_INT,	NET_IPV6_REGEN_MAX_RETRY,		"regen_max_retry" },
  	{ CTL_INT,	NET_IPV6_MAX_DESYNC_FACTOR,		"max_desync_factor" },
  	{ CTL_INT,	NET_IPV6_MAX_ADDRESSES,			"max_addresses" },
  	{ CTL_INT,	NET_IPV6_FORCE_MLD_VERSION,		"force_mld_version" },
  	{ CTL_INT,	NET_IPV6_ACCEPT_RA_DEFRTR,		"accept_ra_defrtr" },
  	{ CTL_INT,	NET_IPV6_ACCEPT_RA_PINFO,		"accept_ra_pinfo" },
  	{ CTL_INT,	NET_IPV6_ACCEPT_RA_RTR_PREF,		"accept_ra_rtr_pref" },
  	{ CTL_INT,	NET_IPV6_RTR_PROBE_INTERVAL,		"router_probe_interval" },
  	{ CTL_INT,	NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN,	"accept_ra_rt_info_max_plen" },
  	{ CTL_INT,	NET_IPV6_PROXY_NDP,			"proxy_ndp" },
  	{ CTL_INT,	NET_IPV6_ACCEPT_SOURCE_ROUTE,		"accept_source_route" },

  	{ CTL_INT,	NET_IPV6_ACCEPT_RA_FROM_LOCAL,		"accept_ra_from_local" },

  	{}
  };
  
  static const struct bin_table bin_net_ipv6_conf_table[] = {
  	{ CTL_DIR,	NET_PROTO_CONF_ALL,		"all",	bin_net_ipv6_conf_var_table },
  	{ CTL_DIR,	NET_PROTO_CONF_DEFAULT, 	"default", bin_net_ipv6_conf_var_table },
  	{ CTL_DIR,	0, NULL, bin_net_ipv6_conf_var_table },
  	{}
  };
  
  static const struct bin_table bin_net_ipv6_route_table[] = {
  	/* NET_IPV6_ROUTE_FLUSH	"flush"  no longer used */
  	{ CTL_INT,	NET_IPV6_ROUTE_GC_THRESH,		"gc_thresh" },
  	{ CTL_INT,	NET_IPV6_ROUTE_MAX_SIZE,		"max_size" },
  	{ CTL_INT,	NET_IPV6_ROUTE_GC_MIN_INTERVAL,		"gc_min_interval" },
  	{ CTL_INT,	NET_IPV6_ROUTE_GC_TIMEOUT,		"gc_timeout" },
  	{ CTL_INT,	NET_IPV6_ROUTE_GC_INTERVAL,		"gc_interval" },
  	{ CTL_INT,	NET_IPV6_ROUTE_GC_ELASTICITY,		"gc_elasticity" },
  	{ CTL_INT,	NET_IPV6_ROUTE_MTU_EXPIRES,		"mtu_expires" },
  	{ CTL_INT,	NET_IPV6_ROUTE_MIN_ADVMSS,		"min_adv_mss" },
  	{ CTL_INT,	NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS,	"gc_min_interval_ms" },
  	{}
  };
  
  static const struct bin_table bin_net_ipv6_icmp_table[] = {
  	{ CTL_INT,	NET_IPV6_ICMP_RATELIMIT,	"ratelimit" },
  	{}
  };
  
  static const struct bin_table bin_net_ipv6_table[] = {
  	{ CTL_DIR,	NET_IPV6_CONF,		"conf",		bin_net_ipv6_conf_table },
  	{ CTL_DIR,	NET_IPV6_NEIGH,		"neigh",	bin_net_neigh_table },
  	{ CTL_DIR,	NET_IPV6_ROUTE,		"route",	bin_net_ipv6_route_table },
  	{ CTL_DIR,	NET_IPV6_ICMP,		"icmp",		bin_net_ipv6_icmp_table },
  	{ CTL_INT,	NET_IPV6_BINDV6ONLY,		"bindv6only" },
  	{ CTL_INT,	NET_IPV6_IP6FRAG_HIGH_THRESH,	"ip6frag_high_thresh" },
  	{ CTL_INT,	NET_IPV6_IP6FRAG_LOW_THRESH,	"ip6frag_low_thresh" },
  	{ CTL_INT,	NET_IPV6_IP6FRAG_TIME,		"ip6frag_time" },
  	{ CTL_INT,	NET_IPV6_IP6FRAG_SECRET_INTERVAL,	"ip6frag_secret_interval" },
  	{ CTL_INT,	NET_IPV6_MLD_MAX_MSF,		"mld_max_msf" },
  	{ CTL_INT,	2088 /* IPQ_QMAX */,		"ip6_queue_maxlen" },
  	{}
  };
  
  static const struct bin_table bin_net_x25_table[] = {
  	{ CTL_INT,	NET_X25_RESTART_REQUEST_TIMEOUT,	"restart_request_timeout" },
  	{ CTL_INT,	NET_X25_CALL_REQUEST_TIMEOUT,		"call_request_timeout" },
  	{ CTL_INT,	NET_X25_RESET_REQUEST_TIMEOUT,	"reset_request_timeout" },
  	{ CTL_INT,	NET_X25_CLEAR_REQUEST_TIMEOUT,	"clear_request_timeout" },
  	{ CTL_INT,	NET_X25_ACK_HOLD_BACK_TIMEOUT,	"acknowledgement_hold_back_timeout" },
  	{ CTL_INT,	NET_X25_FORWARD,			"x25_forward" },
  	{}
  };
  
  static const struct bin_table bin_net_tr_table[] = {
  	{ CTL_INT,	NET_TR_RIF_TIMEOUT,	"rif_timeout" },
  	{}
  };
  
  
  static const struct bin_table bin_net_decnet_conf_vars[] = {
  	{ CTL_INT,	NET_DECNET_CONF_DEV_FORWARDING,	"forwarding" },
  	{ CTL_INT,	NET_DECNET_CONF_DEV_PRIORITY,	"priority" },
  	{ CTL_INT,	NET_DECNET_CONF_DEV_T2,		"t2" },
  	{ CTL_INT,	NET_DECNET_CONF_DEV_T3,		"t3" },
  	{}
  };
  
  static const struct bin_table bin_net_decnet_conf[] = {
  	{ CTL_DIR, NET_DECNET_CONF_ETHER,    "ethernet", bin_net_decnet_conf_vars },
  	{ CTL_DIR, NET_DECNET_CONF_GRE,	     "ipgre",    bin_net_decnet_conf_vars },
  	{ CTL_DIR, NET_DECNET_CONF_X25,	     "x25",      bin_net_decnet_conf_vars },
  	{ CTL_DIR, NET_DECNET_CONF_PPP,	     "ppp",      bin_net_decnet_conf_vars },
  	{ CTL_DIR, NET_DECNET_CONF_DDCMP,    "ddcmp",    bin_net_decnet_conf_vars },
  	{ CTL_DIR, NET_DECNET_CONF_LOOPBACK, "loopback", bin_net_decnet_conf_vars },
  	{ CTL_DIR, 0,			     NULL,	 bin_net_decnet_conf_vars },
  	{}
  };
  
  static const struct bin_table bin_net_decnet_table[] = {
  	{ CTL_DIR,	NET_DECNET_CONF,		"conf",	bin_net_decnet_conf },
  	{ CTL_DNADR,	NET_DECNET_NODE_ADDRESS,	"node_address" },
  	{ CTL_STR,	NET_DECNET_NODE_NAME,		"node_name" },
  	{ CTL_STR,	NET_DECNET_DEFAULT_DEVICE,	"default_device" },
  	{ CTL_INT,	NET_DECNET_TIME_WAIT,		"time_wait" },
  	{ CTL_INT,	NET_DECNET_DN_COUNT,		"dn_count" },
  	{ CTL_INT,	NET_DECNET_DI_COUNT,		"di_count" },
  	{ CTL_INT,	NET_DECNET_DR_COUNT,		"dr_count" },
  	{ CTL_INT,	NET_DECNET_DST_GC_INTERVAL,	"dst_gc_interval" },
  	{ CTL_INT,	NET_DECNET_NO_FC_MAX_CWND,	"no_fc_max_cwnd" },
  	{ CTL_INT,	NET_DECNET_MEM,		"decnet_mem" },
  	{ CTL_INT,	NET_DECNET_RMEM,		"decnet_rmem" },
  	{ CTL_INT,	NET_DECNET_WMEM,		"decnet_wmem" },
  	{ CTL_INT,	NET_DECNET_DEBUG_LEVEL,	"debug" },
  	{}
  };
  
  static const struct bin_table bin_net_sctp_table[] = {
  	{ CTL_INT,	NET_SCTP_RTO_INITIAL,		"rto_initial" },
  	{ CTL_INT,	NET_SCTP_RTO_MIN,		"rto_min" },
  	{ CTL_INT,	NET_SCTP_RTO_MAX,		"rto_max" },
  	{ CTL_INT,	NET_SCTP_RTO_ALPHA,		"rto_alpha_exp_divisor" },
  	{ CTL_INT,	NET_SCTP_RTO_BETA,		"rto_beta_exp_divisor" },
  	{ CTL_INT,	NET_SCTP_VALID_COOKIE_LIFE,	"valid_cookie_life" },
  	{ CTL_INT,	NET_SCTP_ASSOCIATION_MAX_RETRANS,	"association_max_retrans" },
  	{ CTL_INT,	NET_SCTP_PATH_MAX_RETRANS,	"path_max_retrans" },
  	{ CTL_INT,	NET_SCTP_MAX_INIT_RETRANSMITS,	"max_init_retransmits" },
  	{ CTL_INT,	NET_SCTP_HB_INTERVAL,		"hb_interval" },
  	{ CTL_INT,	NET_SCTP_PRESERVE_ENABLE,	"cookie_preserve_enable" },
  	{ CTL_INT,	NET_SCTP_MAX_BURST,		"max_burst" },
  	{ CTL_INT,	NET_SCTP_ADDIP_ENABLE,		"addip_enable" },
  	{ CTL_INT,	NET_SCTP_PRSCTP_ENABLE,		"prsctp_enable" },
  	{ CTL_INT,	NET_SCTP_SNDBUF_POLICY,		"sndbuf_policy" },
  	{ CTL_INT,	NET_SCTP_SACK_TIMEOUT,		"sack_timeout" },
  	{ CTL_INT,	NET_SCTP_RCVBUF_POLICY,		"rcvbuf_policy" },
  	{}
  };
  
  static const struct bin_table bin_net_llc_llc2_timeout_table[] = {
  	{ CTL_INT,	NET_LLC2_ACK_TIMEOUT,	"ack" },
  	{ CTL_INT,	NET_LLC2_P_TIMEOUT,	"p" },
  	{ CTL_INT,	NET_LLC2_REJ_TIMEOUT,	"rej" },
  	{ CTL_INT,	NET_LLC2_BUSY_TIMEOUT,	"busy" },
  	{}
  };
  
  static const struct bin_table bin_net_llc_station_table[] = {
  	{ CTL_INT,	NET_LLC_STATION_ACK_TIMEOUT,	"ack_timeout" },
  	{}
  };
  
  static const struct bin_table bin_net_llc_llc2_table[] = {
  	{ CTL_DIR,	NET_LLC2,		"timeout",	bin_net_llc_llc2_timeout_table },
  	{}
  };
  
  static const struct bin_table bin_net_llc_table[] = {
  	{ CTL_DIR,	NET_LLC2,		"llc2",		bin_net_llc_llc2_table },
  	{ CTL_DIR,	NET_LLC_STATION,	"station",	bin_net_llc_station_table },
  	{}
  };
  
  static const struct bin_table bin_net_netfilter_table[] = {
  	{ CTL_INT,	NET_NF_CONNTRACK_MAX,			"nf_conntrack_max" },
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT "nf_conntrack_tcp_timeout_syn_sent" no longer used */
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV "nf_conntrack_tcp_timeout_syn_recv" no longer used */
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED "nf_conntrack_tcp_timeout_established" no longer used */
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT "nf_conntrack_tcp_timeout_fin_wait" no longer used */
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT "nf_conntrack_tcp_timeout_close_wait" no longer used */
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK "nf_conntrack_tcp_timeout_last_ack" no longer used */
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT "nf_conntrack_tcp_timeout_time_wait" no longer used */
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE "nf_conntrack_tcp_timeout_close" no longer used */
  	/* NET_NF_CONNTRACK_UDP_TIMEOUT	"nf_conntrack_udp_timeout" no longer used */
  	/* NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM "nf_conntrack_udp_timeout_stream" no longer used */
  	/* NET_NF_CONNTRACK_ICMP_TIMEOUT "nf_conntrack_icmp_timeout" no longer used */
  	/* NET_NF_CONNTRACK_GENERIC_TIMEOUT "nf_conntrack_generic_timeout" no longer used */
  	{ CTL_INT,	NET_NF_CONNTRACK_BUCKETS,		"nf_conntrack_buckets" },
  	{ CTL_INT,	NET_NF_CONNTRACK_LOG_INVALID,		"nf_conntrack_log_invalid" },
  	/* NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS "nf_conntrack_tcp_timeout_max_retrans" no longer used */
  	{ CTL_INT,	NET_NF_CONNTRACK_TCP_LOOSE,		"nf_conntrack_tcp_loose" },
  	{ CTL_INT,	NET_NF_CONNTRACK_TCP_BE_LIBERAL,	"nf_conntrack_tcp_be_liberal" },
  	{ CTL_INT,	NET_NF_CONNTRACK_TCP_MAX_RETRANS,	"nf_conntrack_tcp_max_retrans" },
  	/* NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED "nf_conntrack_sctp_timeout_closed" no longer used */
  	/* NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT "nf_conntrack_sctp_timeout_cookie_wait" no longer used */
  	/* NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED "nf_conntrack_sctp_timeout_cookie_echoed" no longer used */
  	/* NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED "nf_conntrack_sctp_timeout_established" no longer used */
  	/* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT "nf_conntrack_sctp_timeout_shutdown_sent" no longer used */
  	/* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD "nf_conntrack_sctp_timeout_shutdown_recd" no longer used */
  	/* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT "nf_conntrack_sctp_timeout_shutdown_ack_sent" no longer used */
  	{ CTL_INT,	NET_NF_CONNTRACK_COUNT,			"nf_conntrack_count" },
  	/* NET_NF_CONNTRACK_ICMPV6_TIMEOUT "nf_conntrack_icmpv6_timeout" no longer used */
  	/* NET_NF_CONNTRACK_FRAG6_TIMEOUT "nf_conntrack_frag6_timeout" no longer used */
  	{ CTL_INT,	NET_NF_CONNTRACK_FRAG6_LOW_THRESH,	"nf_conntrack_frag6_low_thresh" },
  	{ CTL_INT,	NET_NF_CONNTRACK_FRAG6_HIGH_THRESH,	"nf_conntrack_frag6_high_thresh" },
  	{ CTL_INT,	NET_NF_CONNTRACK_CHECKSUM,		"nf_conntrack_checksum" },
  
  	{}
  };

  static const struct bin_table bin_net_table[] = {
  	{ CTL_DIR,	NET_CORE,		"core",		bin_net_core_table },
  	/* NET_ETHER not used */
  	/* NET_802 not used */
  	{ CTL_DIR,	NET_UNIX,		"unix",		bin_net_unix_table },
  	{ CTL_DIR,	NET_IPV4,		"ipv4",		bin_net_ipv4_table },
  	{ CTL_DIR,	NET_IPX,		"ipx",		bin_net_ipx_table },
  	{ CTL_DIR,	NET_ATALK,		"appletalk",	bin_net_atalk_table },
  	{ CTL_DIR,	NET_NETROM,		"netrom",	bin_net_netrom_table },
  	{ CTL_DIR,	NET_AX25,		"ax25",		bin_net_ax25_table },
  	/*  NET_BRIDGE "bridge" no longer used */
  	{ CTL_DIR,	NET_ROSE,		"rose",		bin_net_rose_table },
  	{ CTL_DIR,	NET_IPV6,		"ipv6",		bin_net_ipv6_table },
  	{ CTL_DIR,	NET_X25,		"x25",		bin_net_x25_table },
  	{ CTL_DIR,	NET_TR,			"token-ring",	bin_net_tr_table },
  	{ CTL_DIR,	NET_DECNET,		"decnet",	bin_net_decnet_table },
  	/*  NET_ECONET not used */
  	{ CTL_DIR,	NET_SCTP,		"sctp",		bin_net_sctp_table },
  	{ CTL_DIR,	NET_LLC,		"llc",		bin_net_llc_table },
  	{ CTL_DIR,	NET_NETFILTER,		"netfilter",	bin_net_netfilter_table },
  	/* NET_DCCP "dccp" no longer used */

  	/* NET_IRDA "irda" no longer used */

  	{ CTL_INT,	2089,			"nf_conntrack_max" },
  	{}
  };
  
  static const struct bin_table bin_fs_quota_table[] = {
  	{ CTL_INT,	FS_DQ_LOOKUPS,		"lookups" },
  	{ CTL_INT,	FS_DQ_DROPS,		"drops" },
  	{ CTL_INT,	FS_DQ_READS,		"reads" },
  	{ CTL_INT,	FS_DQ_WRITES,		"writes" },
  	{ CTL_INT,	FS_DQ_CACHE_HITS,	"cache_hits" },
  	{ CTL_INT,	FS_DQ_ALLOCATED,	"allocated_dquots" },
  	{ CTL_INT,	FS_DQ_FREE,		"free_dquots" },
  	{ CTL_INT,	FS_DQ_SYNCS,		"syncs" },
  	{ CTL_INT,	FS_DQ_WARNINGS,		"warnings" },
  	{}
  };
  
  static const struct bin_table bin_fs_xfs_table[] = {
  	{ CTL_INT,	XFS_SGID_INHERIT,	"irix_sgid_inherit" },
  	{ CTL_INT,	XFS_SYMLINK_MODE,	"irix_symlink_mode" },
  	{ CTL_INT,	XFS_PANIC_MASK,		"panic_mask" },
  
  	{ CTL_INT,	XFS_ERRLEVEL,		"error_level" },
  	{ CTL_INT,	XFS_SYNCD_TIMER,	"xfssyncd_centisecs" },
  	{ CTL_INT,	XFS_INHERIT_SYNC,	"inherit_sync" },
  	{ CTL_INT,	XFS_INHERIT_NODUMP,	"inherit_nodump" },
  	{ CTL_INT,	XFS_INHERIT_NOATIME,	"inherit_noatime" },
  	{ CTL_INT,	XFS_BUF_TIMER,		"xfsbufd_centisecs" },
  	{ CTL_INT,	XFS_BUF_AGE,		"age_buffer_centisecs" },
  	{ CTL_INT,	XFS_INHERIT_NOSYM,	"inherit_nosymlinks" },
  	{ CTL_INT,	XFS_ROTORSTEP,	"rotorstep" },
  	{ CTL_INT,	XFS_INHERIT_NODFRG,	"inherit_nodefrag" },
  	{ CTL_INT,	XFS_FILESTREAM_TIMER,	"filestream_centisecs" },
  	{ CTL_INT,	XFS_STATS_CLEAR,	"stats_clear" },
  	{}
  };
  
  static const struct bin_table bin_fs_ocfs2_nm_table[] = {
  	{ CTL_STR,	1, "hb_ctl_path" },
  	{}
  };
  
  static const struct bin_table bin_fs_ocfs2_table[] = {
  	{ CTL_DIR,	1,	"nm",	bin_fs_ocfs2_nm_table },
  	{}
  };
  
  static const struct bin_table bin_inotify_table[] = {
  	{ CTL_INT,	INOTIFY_MAX_USER_INSTANCES,	"max_user_instances" },
  	{ CTL_INT,	INOTIFY_MAX_USER_WATCHES,	"max_user_watches" },
  	{ CTL_INT,	INOTIFY_MAX_QUEUED_EVENTS,	"max_queued_events" },
  	{}
  };
  
  static const struct bin_table bin_fs_table[] = {
  	{ CTL_INT,	FS_NRINODE,		"inode-nr" },
  	{ CTL_INT,	FS_STATINODE,		"inode-state" },
  	/* FS_MAXINODE unused */
  	/* FS_NRDQUOT unused */
  	/* FS_MAXDQUOT unused */
  	/* FS_NRFILE "file-nr" no longer used */
  	{ CTL_INT,	FS_MAXFILE,		"file-max" },
  	{ CTL_INT,	FS_DENTRY,		"dentry-state" },
  	/* FS_NRSUPER unused */
  	/* FS_MAXUPSER unused */
  	{ CTL_INT,	FS_OVERFLOWUID,		"overflowuid" },
  	{ CTL_INT,	FS_OVERFLOWGID,		"overflowgid" },
  	{ CTL_INT,	FS_LEASES,		"leases-enable" },
  	{ CTL_INT,	FS_DIR_NOTIFY,		"dir-notify-enable" },
  	{ CTL_INT,	FS_LEASE_TIME,		"lease-break-time" },
  	{ CTL_DIR,	FS_DQSTATS,		"quota",	bin_fs_quota_table },
  	{ CTL_DIR,	FS_XFS,			"xfs",		bin_fs_xfs_table },
  	{ CTL_ULONG,	FS_AIO_NR,		"aio-nr" },
  	{ CTL_ULONG,	FS_AIO_MAX_NR,		"aio-max-nr" },
  	{ CTL_DIR,	FS_INOTIFY,		"inotify",	bin_inotify_table },
  	{ CTL_DIR,	FS_OCFS2,		"ocfs2",	bin_fs_ocfs2_table },
  	{ CTL_INT,	KERN_SETUID_DUMPABLE,	"suid_dumpable" },
  	{}
  };
  
  static const struct bin_table bin_ipmi_table[] = {
  	{ CTL_INT,	DEV_IPMI_POWEROFF_POWERCYCLE,	"poweroff_powercycle" },
  	{}
  };
  
  static const struct bin_table bin_mac_hid_files[] = {
  	/* DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES unused */
  	/* DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES unused */
  	{ CTL_INT,	DEV_MAC_HID_MOUSE_BUTTON_EMULATION,	"mouse_button_emulation" },
  	{ CTL_INT,	DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE,	"mouse_button2_keycode" },
  	{ CTL_INT,	DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE,	"mouse_button3_keycode" },
  	/* DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES unused */
  	{}
  };
  
  static const struct bin_table bin_raid_table[] = {
  	{ CTL_INT,	DEV_RAID_SPEED_LIMIT_MIN,	"speed_limit_min" },
  	{ CTL_INT,	DEV_RAID_SPEED_LIMIT_MAX,	"speed_limit_max" },
  	{}
  };
  
  static const struct bin_table bin_scsi_table[] = {
  	{ CTL_INT, DEV_SCSI_LOGGING_LEVEL, "logging_level" },
  	{}
  };
  
  static const struct bin_table bin_dev_table[] = {
  	/* DEV_CDROM	"cdrom" no longer used */
  	/* DEV_HWMON unused */
  	/* DEV_PARPORT	"parport" no longer used */
  	{ CTL_DIR,	DEV_RAID,	"raid",		bin_raid_table },
  	{ CTL_DIR,	DEV_MAC_HID,	"mac_hid",	bin_mac_hid_files },
  	{ CTL_DIR,	DEV_SCSI,	"scsi",		bin_scsi_table },
  	{ CTL_DIR,	DEV_IPMI,	"ipmi",		bin_ipmi_table },
  	{}
  };
  
  static const struct bin_table bin_bus_isa_table[] = {
  	{ CTL_INT,	BUS_ISA_MEM_BASE,	"membase" },
  	{ CTL_INT,	BUS_ISA_PORT_BASE,	"portbase" },
  	{ CTL_INT,	BUS_ISA_PORT_SHIFT,	"portshift" },
  	{}
  };
  
  static const struct bin_table bin_bus_table[] = {
  	{ CTL_DIR,	CTL_BUS_ISA,	"isa",	bin_bus_isa_table },
  	{}
  };
  
  
  static const struct bin_table bin_s390dbf_table[] = {
  	{ CTL_INT,	5678 /* CTL_S390DBF_STOPPABLE */, "debug_stoppable" },
  	{ CTL_INT,	5679 /* CTL_S390DBF_ACTIVE */,	  "debug_active" },
  	{}
  };
  
  static const struct bin_table bin_sunrpc_table[] = {
  	/* CTL_RPCDEBUG	"rpc_debug"  no longer used */
  	/* CTL_NFSDEBUG "nfs_debug"  no longer used */
  	/* CTL_NFSDDEBUG "nfsd_debug" no longer used  */
  	/* CTL_NLMDEBUG "nlm_debug" no longer used */
  
  	{ CTL_INT,	CTL_SLOTTABLE_UDP,	"udp_slot_table_entries" },
  	{ CTL_INT,	CTL_SLOTTABLE_TCP,	"tcp_slot_table_entries" },
  	{ CTL_INT,	CTL_MIN_RESVPORT,	"min_resvport" },
  	{ CTL_INT,	CTL_MAX_RESVPORT,	"max_resvport" },
  	{}
  };
  
  static const struct bin_table bin_pm_table[] = {
  	/* frv specific */
  	/* 1 == CTL_PM_SUSPEND	"suspend"  no longer used" */
  	{ CTL_INT,	2 /* CTL_PM_CMODE */,		"cmode" },
  	{ CTL_INT,	3 /* CTL_PM_P0 */,		"p0" },
  	{ CTL_INT,	4 /* CTL_PM_CM */,		"cm" },
  	{}
  };
  
  static const struct bin_table bin_root_table[] = {
  	{ CTL_DIR,	CTL_KERN,	"kernel",	bin_kern_table },
  	{ CTL_DIR,	CTL_VM,		"vm",		bin_vm_table },
  	{ CTL_DIR,	CTL_NET,	"net",		bin_net_table },
  	/* CTL_PROC not used */
  	{ CTL_DIR,	CTL_FS,		"fs",		bin_fs_table },
  	/* CTL_DEBUG "debug" no longer used */
  	{ CTL_DIR,	CTL_DEV,	"dev",		bin_dev_table },
  	{ CTL_DIR,	CTL_BUS,	"bus",		bin_bus_table },
  	{ CTL_DIR,	CTL_ABI,	"abi" },
  	/* CTL_CPU not used */
  	/* CTL_ARLAN "arlan" no longer used */
  	{ CTL_DIR,	CTL_S390DBF,	"s390dbf",	bin_s390dbf_table },
  	{ CTL_DIR,	CTL_SUNRPC,	"sunrpc",	bin_sunrpc_table },
  	{ CTL_DIR,	CTL_PM,		"pm",		bin_pm_table },
  	{}
  };
  
  static ssize_t bin_dir(struct file *file,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
  {
  	return -ENOTDIR;
  }
  
  
  static ssize_t bin_string(struct file *file,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
  {
  	ssize_t result, copied = 0;
  
  	if (oldval && oldlen) {
  		char __user *lastp;
  		loff_t pos = 0;
  		int ch;
  
  		result = vfs_read(file, oldval, oldlen, &pos);
  		if (result < 0)
  			goto out;
  
  		copied = result;
  		lastp = oldval + copied - 1;
  
  		result = -EFAULT;
  		if (get_user(ch, lastp))
  			goto out;
  
  		/* Trim off the trailing newline */
  		if (ch == '
  ') {
  			result = -EFAULT;
  			if (put_user('\0', lastp))
  				goto out;
  			copied -= 1;
  		}
  	}
  
  	if (newval && newlen) {
  		loff_t pos = 0;
  
  		result = vfs_write(file, newval, newlen, &pos);
  		if (result < 0)
  			goto out;
  	}
  
  	result = copied;
  out:
  	return result;
  }
  
  static ssize_t bin_intvec(struct file *file,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
  {

  	ssize_t copied = 0;
  	char *buffer;
  	ssize_t result;
  
  	result = -ENOMEM;
  	buffer = kmalloc(BUFSZ, GFP_KERNEL);
  	if (!buffer)
  		goto out;
  
  	if (oldval && oldlen) {
  		unsigned __user *vec = oldval;
  		size_t length = oldlen / sizeof(*vec);

  		char *str, *end;
  		int i;

  		loff_t pos = 0;

  		result = kernel_read(file, buffer, BUFSZ - 1, &pos);

  		if (result < 0)
  			goto out_kfree;
  
  		str = buffer;
  		end = str + result;
  		*end++ = '\0';
  		for (i = 0; i < length; i++) {
  			unsigned long value;
  
  			value = simple_strtoul(str, &str, 10);
  			while (isspace(*str))
  				str++;
  			
  			result = -EFAULT;
  			if (put_user(value, vec + i))
  				goto out_kfree;
  
  			copied += sizeof(*vec);
  			if (!isdigit(*str))
  				break;
  		}
  	}
  
  	if (newval && newlen) {
  		unsigned __user *vec = newval;
  		size_t length = newlen / sizeof(*vec);

  		char *str, *end;
  		int i;

  		loff_t pos = 0;

  
  		str = buffer;
  		end = str + BUFSZ;
  		for (i = 0; i < length; i++) {
  			unsigned long value;
  
  			result = -EFAULT;
  			if (get_user(value, vec + i))
  				goto out_kfree;

  			str += scnprintf(str, end - str, "%lu\t", value);

  		}

  		result = kernel_write(file, buffer, str - buffer, &pos);

  		if (result < 0)
  			goto out_kfree;
  	}
  	result = copied;
  out_kfree:
  	kfree(buffer);
  out:
  	return result;
  }
  
  static ssize_t bin_ulongvec(struct file *file,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)

  {

  	ssize_t copied = 0;
  	char *buffer;
  	ssize_t result;
  
  	result = -ENOMEM;
  	buffer = kmalloc(BUFSZ, GFP_KERNEL);
  	if (!buffer)
  		goto out;
  
  	if (oldval && oldlen) {
  		unsigned long __user *vec = oldval;
  		size_t length = oldlen / sizeof(*vec);

  		char *str, *end;
  		int i;

  		loff_t pos = 0;

  		result = kernel_read(file, buffer, BUFSZ - 1, &pos);

  		if (result < 0)
  			goto out_kfree;
  
  		str = buffer;
  		end = str + result;
  		*end++ = '\0';
  		for (i = 0; i < length; i++) {
  			unsigned long value;
  
  			value = simple_strtoul(str, &str, 10);
  			while (isspace(*str))
  				str++;
  			
  			result = -EFAULT;
  			if (put_user(value, vec + i))
  				goto out_kfree;
  
  			copied += sizeof(*vec);
  			if (!isdigit(*str))
  				break;
  		}

  	}

  	if (newval && newlen) {
  		unsigned long __user *vec = newval;
  		size_t length = newlen / sizeof(*vec);

  		char *str, *end;
  		int i;

  		loff_t pos = 0;

  
  		str = buffer;
  		end = str + BUFSZ;
  		for (i = 0; i < length; i++) {
  			unsigned long value;
  
  			result = -EFAULT;
  			if (get_user(value, vec + i))
  				goto out_kfree;

  			str += scnprintf(str, end - str, "%lu\t", value);

  		}

  		result = kernel_write(file, buffer, str - buffer, &pos);

  		if (result < 0)
  			goto out_kfree;

  	}

  	result = copied;
  out_kfree:
  	kfree(buffer);
  out:
  	return result;
  }

  static ssize_t bin_uuid(struct file *file,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)

  {

  	ssize_t result, copied = 0;
  
  	/* Only supports reads */
  	if (oldval && oldlen) {

  		char buf[UUID_STRING_LEN + 1];

  		uuid_t uuid;

  		loff_t pos = 0;

  		result = kernel_read(file, buf, sizeof(buf) - 1, &pos);

  		if (result < 0)
  			goto out;
  
  		buf[result] = '\0';

  		result = -EIO;

  		if (uuid_parse(buf, &uuid))

  			goto out;

  
  		if (oldlen > 16)
  			oldlen = 16;
  
  		result = -EFAULT;

  		if (copy_to_user(oldval, &uuid, oldlen))

  			goto out;
  
  		copied = oldlen;
  	}
  	result = copied;
  out:
  	return result;
  }
  
  static ssize_t bin_dn_node_address(struct file *file,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
  {

  	ssize_t result, copied = 0;
  
  	if (oldval && oldlen) {

  		char buf[15], *nodep;
  		unsigned long area, node;
  		__le16 dnaddr;

  		loff_t pos = 0;

  		result = kernel_read(file, buf, sizeof(buf) - 1, &pos);

  		if (result < 0)
  			goto out;
  
  		buf[result] = '\0';

  		/* Convert the decnet address to binary */

  		result = -EIO;

  		nodep = strchr(buf, '.');

  		if (!nodep)
  			goto out;

  		++nodep;

  
  		area = simple_strtoul(buf, NULL, 10);
  		node = simple_strtoul(nodep, NULL, 10);
  
  		result = -EIO;
  		if ((area > 63)||(node > 1023))
  			goto out;
  
  		dnaddr = cpu_to_le16((area << 10) | node);
  
  		result = -EFAULT;
  		if (put_user(dnaddr, (__le16 __user *)oldval))
  			goto out;
  
  		copied = sizeof(dnaddr);
  	}
  
  	if (newval && newlen) {

  		__le16 dnaddr;
  		char buf[15];
  		int len;

  		loff_t pos = 0;

  
  		result = -EINVAL;
  		if (newlen != sizeof(dnaddr))
  			goto out;
  
  		result = -EFAULT;
  		if (get_user(dnaddr, (__le16 __user *)newval))
  			goto out;

  		len = scnprintf(buf, sizeof(buf), "%hu.%hu",

  				le16_to_cpu(dnaddr) >> 10,
  				le16_to_cpu(dnaddr) & 0x3ff);

  		result = kernel_write(file, buf, len, &pos);

  		if (result < 0)
  			goto out;
  	}
  
  	result = copied;
  out:
  	return result;
  }
  
  static const struct bin_table *get_sysctl(const int *name, int nlen, char *path)
  {
  	const struct bin_table *table = &bin_root_table[0];

  	int ctl_name;

  	/* The binary sysctl tables have a small maximum depth so
  	 * there is no danger of overflowing our path as it PATH_MAX
  	 * bytes long.
  	 */

  	memcpy(path, "sys/", 4);
  	path += 4;

  repeat:
  	if (!nlen)

  		return ERR_PTR(-ENOTDIR);
  	ctl_name = *name;
  	name++;
  	nlen--;
  	for ( ; table->convert; table++) {

  		int len = 0;

  		/*
  		 * For a wild card entry map from ifindex to network
  		 * device name.
  		 */

  		if (!table->ctl_name) {
  #ifdef CONFIG_NET

  			struct net *net = current->nsproxy->net_ns;
  			struct net_device *dev;

  			dev = dev_get_by_index(net, ctl_name);

  			if (dev) {
  				len = strlen(dev->name);
  				memcpy(path, dev->name, len);
  				dev_put(dev);
  			}

  #endif

  		/* Use the well known sysctl number to proc name mapping */
  		} else if (ctl_name == table->ctl_name) {
  			len = strlen(table->procname);
  			memcpy(path, table->procname, len);
  		}

  		if (len) {

  			path += len;

  			if (table->child) {

  				*path++ = '/';

  				table = table->child;
  				goto repeat;
  			}

  			*path = '\0';
  			return table;

  		}
  	}

  	return ERR_PTR(-ENOTDIR);

  }

  static char *sysctl_getname(const int *name, int nlen, const struct bin_table **tablep)

  {

  	char *tmp, *result;
  
  	result = ERR_PTR(-ENOMEM);
  	tmp = __getname();
  	if (tmp) {
  		const struct bin_table *table = get_sysctl(name, nlen, tmp);
  		result = tmp;
  		*tablep = table;
  		if (IS_ERR(table)) {
  			__putname(tmp);
  			result = ERR_CAST(table);

  		}
  	}

  	return result;

  }

  static ssize_t binary_sysctl(const int *name, int nlen,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
  {
  	const struct bin_table *table = NULL;

  	struct vfsmount *mnt;
  	struct file *file;
  	ssize_t result;
  	char *pathname;
  	int flags;

  
  	pathname = sysctl_getname(name, nlen, &table);
  	result = PTR_ERR(pathname);
  	if (IS_ERR(pathname))
  		goto out;
  
  	/* How should the sysctl be accessed? */
  	if (oldval && oldlen && newval && newlen) {
  		flags = O_RDWR;

  	} else if (newval && newlen) {
  		flags = O_WRONLY;

  	} else if (oldval && oldlen) {
  		flags = O_RDONLY;

  	} else {
  		result = 0;
  		goto out_putname;
  	}

  	mnt = task_active_pid_ns(current)->proc_mnt;

  	file = file_open_root(mnt->mnt_root, mnt, pathname, flags, 0);

  	result = PTR_ERR(file);
  	if (IS_ERR(file))
  		goto out_putname;
  
  	result = table->convert(file, oldval, oldlen, newval, newlen);
  
  	fput(file);
  out_putname:

  	__putname(pathname);

  out:
  	return result;

  }

  #else /* CONFIG_SYSCTL_SYSCALL */

  static ssize_t binary_sysctl(const int *name, int nlen,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)

  {

  	return -ENOSYS;

  }
  
  #endif /* CONFIG_SYSCTL_SYSCALL */

  static void deprecated_sysctl_warning(const int *name, int nlen)

  {

  	int i;

  	/*
  	 * CTL_KERN/KERN_VERSION is used by older glibc and cannot
  	 * ever go away.
  	 */

  	if (nlen >= 2 && name[0] == CTL_KERN && name[1] == KERN_VERSION)

  		return;

  	if (printk_ratelimit()) {

  		printk(KERN_INFO
  			"warning: process `%s' used the deprecated sysctl "
  			"system call with ", current->comm);

  		for (i = 0; i < nlen; i++)

  			printk(KERN_CONT "%d.", name[i]);
  		printk(KERN_CONT "
  ");

  	}

  	return;
  }

  #define WARN_ONCE_HASH_BITS 8
  #define WARN_ONCE_HASH_SIZE (1<<WARN_ONCE_HASH_BITS)
  
  static DECLARE_BITMAP(warn_once_bitmap, WARN_ONCE_HASH_SIZE);
  
  #define FNV32_OFFSET 2166136261U
  #define FNV32_PRIME 0x01000193
  
  /*
   * Print each legacy sysctl (approximately) only once.
   * To avoid making the tables non-const use a external
   * hash-table instead.
   * Worst case hash collision: 6, but very rarely.
   * NOTE! We don't use the SMP-safe bit tests. We simply
   * don't care enough.
   */
  static void warn_on_bintable(const int *name, int nlen)
  {
  	int i;
  	u32 hash = FNV32_OFFSET;
  
  	for (i = 0; i < nlen; i++)
  		hash = (hash ^ name[i]) * FNV32_PRIME;
  	hash %= WARN_ONCE_HASH_SIZE;
  	if (__test_and_set_bit(hash, warn_once_bitmap))
  		return;
  	deprecated_sysctl_warning(name, nlen);
  }

  static ssize_t do_sysctl(int __user *args_name, int nlen,
  	void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)

  {
  	int name[CTL_MAXNAME];

  	int i;

  	/* Check args->nlen. */
  	if (nlen < 0 || nlen > CTL_MAXNAME)

  		return -ENOTDIR;

  	/* Read in the sysctl name for simplicity */
  	for (i = 0; i < nlen; i++)
  		if (get_user(name[i], args_name + i))
  			return -EFAULT;

  	warn_on_bintable(name, nlen);

  	return binary_sysctl(name, nlen, oldval, oldlen, newval, newlen);

  }

  SYSCALL_DEFINE1(sysctl, struct __sysctl_args __user *, args)
  {
  	struct __sysctl_args tmp;

  	size_t oldlen = 0;
  	ssize_t result;

  
  	if (copy_from_user(&tmp, args, sizeof(tmp)))
  		return -EFAULT;

  	if (tmp.oldval && !tmp.oldlenp)
  		return -EFAULT;
  
  	if (tmp.oldlenp && get_user(oldlen, tmp.oldlenp))
  		return -EFAULT;
  
  	result = do_sysctl(tmp.name, tmp.nlen, tmp.oldval, oldlen,
  			   tmp.newval, tmp.newlen);
  
  	if (result >= 0) {
  		oldlen = result;
  		result = 0;
  	}

  	if (tmp.oldlenp && put_user(oldlen, tmp.oldlenp))
  		return -EFAULT;
  
  	return result;

  }

  #ifdef CONFIG_COMPAT

  
  struct compat_sysctl_args {
  	compat_uptr_t	name;
  	int		nlen;
  	compat_uptr_t	oldval;
  	compat_uptr_t	oldlenp;
  	compat_uptr_t	newval;
  	compat_size_t	newlen;
  	compat_ulong_t	__unused[4];
  };

  COMPAT_SYSCALL_DEFINE1(sysctl, struct compat_sysctl_args __user *, args)

  {
  	struct compat_sysctl_args tmp;
  	compat_size_t __user *compat_oldlenp;

  	size_t oldlen = 0;
  	ssize_t result;
  
  	if (copy_from_user(&tmp, args, sizeof(tmp)))
  		return -EFAULT;

  	if (tmp.oldval && !tmp.oldlenp)
  		return -EFAULT;

  	compat_oldlenp = compat_ptr(tmp.oldlenp);
  	if (compat_oldlenp && get_user(oldlen, compat_oldlenp))
  		return -EFAULT;

  	result = do_sysctl(compat_ptr(tmp.name), tmp.nlen,

  			   compat_ptr(tmp.oldval), oldlen,

  			   compat_ptr(tmp.newval), tmp.newlen);

  	if (result >= 0) {
  		oldlen = result;
  		result = 0;

  	}

  	if (compat_oldlenp && put_user(oldlen, compat_oldlenp))
  		return -EFAULT;

  	return result;
  }
  
  #endif /* CONFIG_COMPAT */