Release 4.15 kernel/sysctl_binary.c

// 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" },
	{}
};


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" }