1 #include <linux/stat.h>
2 #include <linux/sysctl.h>
3 #include "../fs/xfs/xfs_sysctl.h"
4 #include <linux/sunrpc/debug.h>
5 #include <linux/string.h>
6 #include <linux/syscalls.h>
7 #include <linux/namei.h>
8 #include <linux/mount.h>
10 #include <linux/nsproxy.h>
11 #include <linux/pid_namespace.h>
12 #include <linux/file.h>
13 #include <linux/ctype.h>
14 #include <linux/netdevice.h>
15 #include <linux/kernel.h>
16 #include <linux/uuid.h>
17 #include <linux/slab.h>
18 #include <linux/compat.h>
20 #ifdef CONFIG_SYSCTL_SYSCALL
23 typedef ssize_t
bin_convert_t(struct file
*file
,
24 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
);
26 static bin_convert_t bin_dir
;
27 static bin_convert_t bin_string
;
28 static bin_convert_t bin_intvec
;
29 static bin_convert_t bin_ulongvec
;
30 static bin_convert_t bin_uuid
;
31 static bin_convert_t bin_dn_node_address
;
33 #define CTL_DIR bin_dir
34 #define CTL_STR bin_string
35 #define CTL_INT bin_intvec
36 #define CTL_ULONG bin_ulongvec
37 #define CTL_UUID bin_uuid
38 #define CTL_DNADR bin_dn_node_address
43 bin_convert_t
*convert
;
46 const struct bin_table
*child
;
49 static const struct bin_table bin_random_table
[] = {
50 { CTL_INT
, RANDOM_POOLSIZE
, "poolsize" },
51 { CTL_INT
, RANDOM_ENTROPY_COUNT
, "entropy_avail" },
52 { CTL_INT
, RANDOM_READ_THRESH
, "read_wakeup_threshold" },
53 { CTL_INT
, RANDOM_WRITE_THRESH
, "write_wakeup_threshold" },
54 { CTL_UUID
, RANDOM_BOOT_ID
, "boot_id" },
55 { CTL_UUID
, RANDOM_UUID
, "uuid" },
59 static const struct bin_table bin_pty_table
[] = {
60 { CTL_INT
, PTY_MAX
, "max" },
61 { CTL_INT
, PTY_NR
, "nr" },
65 static const struct bin_table bin_kern_table
[] = {
66 { CTL_STR
, KERN_OSTYPE
, "ostype" },
67 { CTL_STR
, KERN_OSRELEASE
, "osrelease" },
68 /* KERN_OSREV not used */
69 { CTL_STR
, KERN_VERSION
, "version" },
70 /* KERN_SECUREMASK not used */
71 /* KERN_PROF not used */
72 { CTL_STR
, KERN_NODENAME
, "hostname" },
73 { CTL_STR
, KERN_DOMAINNAME
, "domainname" },
75 { CTL_INT
, KERN_PANIC
, "panic" },
76 { CTL_INT
, KERN_REALROOTDEV
, "real-root-dev" },
78 { CTL_STR
, KERN_SPARC_REBOOT
, "reboot-cmd" },
79 { CTL_INT
, KERN_CTLALTDEL
, "ctrl-alt-del" },
80 { CTL_INT
, KERN_PRINTK
, "printk" },
82 /* KERN_NAMETRANS not used */
83 /* KERN_PPC_HTABRECLAIM not used */
84 /* KERN_PPC_ZEROPAGED not used */
85 { CTL_INT
, KERN_PPC_POWERSAVE_NAP
, "powersave-nap" },
87 { CTL_STR
, KERN_MODPROBE
, "modprobe" },
88 { CTL_INT
, KERN_SG_BIG_BUFF
, "sg-big-buff" },
89 { CTL_INT
, KERN_ACCT
, "acct" },
90 /* KERN_PPC_L2CR "l2cr" no longer used */
92 /* KERN_RTSIGNR not used */
93 /* KERN_RTSIGMAX not used */
95 { CTL_ULONG
, KERN_SHMMAX
, "shmmax" },
96 { CTL_INT
, KERN_MSGMAX
, "msgmax" },
97 { CTL_INT
, KERN_MSGMNB
, "msgmnb" },
98 /* KERN_MSGPOOL not used*/
99 { CTL_INT
, KERN_SYSRQ
, "sysrq" },
100 { CTL_INT
, KERN_MAX_THREADS
, "threads-max" },
101 { CTL_DIR
, KERN_RANDOM
, "random", bin_random_table
},
102 { CTL_ULONG
, KERN_SHMALL
, "shmall" },
103 { CTL_INT
, KERN_MSGMNI
, "msgmni" },
104 { CTL_INT
, KERN_SEM
, "sem" },
105 { CTL_INT
, KERN_SPARC_STOP_A
, "stop-a" },
106 { CTL_INT
, KERN_SHMMNI
, "shmmni" },
108 { CTL_INT
, KERN_OVERFLOWUID
, "overflowuid" },
109 { CTL_INT
, KERN_OVERFLOWGID
, "overflowgid" },
111 { CTL_STR
, KERN_HOTPLUG
, "hotplug", },
112 { CTL_INT
, KERN_IEEE_EMULATION_WARNINGS
, "ieee_emulation_warnings" },
114 { CTL_INT
, KERN_S390_USER_DEBUG_LOGGING
, "userprocess_debug" },
115 { CTL_INT
, KERN_CORE_USES_PID
, "core_uses_pid" },
116 /* KERN_TAINTED "tainted" no longer used */
117 { CTL_INT
, KERN_CADPID
, "cad_pid" },
118 { CTL_INT
, KERN_PIDMAX
, "pid_max" },
119 { CTL_STR
, KERN_CORE_PATTERN
, "core_pattern" },
120 { CTL_INT
, KERN_PANIC_ON_OOPS
, "panic_on_oops" },
121 { CTL_INT
, KERN_HPPA_PWRSW
, "soft-power" },
122 { CTL_INT
, KERN_HPPA_UNALIGNED
, "unaligned-trap" },
124 { CTL_INT
, KERN_PRINTK_RATELIMIT
, "printk_ratelimit" },
125 { CTL_INT
, KERN_PRINTK_RATELIMIT_BURST
, "printk_ratelimit_burst" },
127 { CTL_DIR
, KERN_PTY
, "pty", bin_pty_table
},
128 { CTL_INT
, KERN_NGROUPS_MAX
, "ngroups_max" },
129 { CTL_INT
, KERN_SPARC_SCONS_PWROFF
, "scons-poweroff" },
130 /* KERN_HZ_TIMER "hz_timer" no longer used */
131 { CTL_INT
, KERN_UNKNOWN_NMI_PANIC
, "unknown_nmi_panic" },
132 { CTL_INT
, KERN_BOOTLOADER_TYPE
, "bootloader_type" },
133 { CTL_INT
, KERN_RANDOMIZE
, "randomize_va_space" },
135 { CTL_INT
, KERN_SPIN_RETRY
, "spin_retry" },
136 /* KERN_ACPI_VIDEO_FLAGS "acpi_video_flags" no longer used */
137 { CTL_INT
, KERN_IA64_UNALIGNED
, "ignore-unaligned-usertrap" },
138 { CTL_INT
, KERN_COMPAT_LOG
, "compat-log" },
139 { CTL_INT
, KERN_MAX_LOCK_DEPTH
, "max_lock_depth" },
140 { CTL_INT
, KERN_PANIC_ON_NMI
, "panic_on_unrecovered_nmi" },
141 { CTL_INT
, KERN_PANIC_ON_WARN
, "panic_on_warn" },
145 static const struct bin_table bin_vm_table
[] = {
146 { CTL_INT
, VM_OVERCOMMIT_MEMORY
, "overcommit_memory" },
147 { CTL_INT
, VM_PAGE_CLUSTER
, "page-cluster" },
148 { CTL_INT
, VM_DIRTY_BACKGROUND
, "dirty_background_ratio" },
149 { CTL_INT
, VM_DIRTY_RATIO
, "dirty_ratio" },
150 /* VM_DIRTY_WB_CS "dirty_writeback_centisecs" no longer used */
151 /* VM_DIRTY_EXPIRE_CS "dirty_expire_centisecs" no longer used */
152 /* VM_NR_PDFLUSH_THREADS "nr_pdflush_threads" no longer used */
153 { CTL_INT
, VM_OVERCOMMIT_RATIO
, "overcommit_ratio" },
154 /* VM_PAGEBUF unused */
155 /* VM_HUGETLB_PAGES "nr_hugepages" no longer used */
156 { CTL_INT
, VM_SWAPPINESS
, "swappiness" },
157 { CTL_INT
, VM_LOWMEM_RESERVE_RATIO
, "lowmem_reserve_ratio" },
158 { CTL_INT
, VM_MIN_FREE_KBYTES
, "min_free_kbytes" },
159 { CTL_INT
, VM_MAX_MAP_COUNT
, "max_map_count" },
160 { CTL_INT
, VM_LAPTOP_MODE
, "laptop_mode" },
161 { CTL_INT
, VM_BLOCK_DUMP
, "block_dump" },
162 { CTL_INT
, VM_HUGETLB_GROUP
, "hugetlb_shm_group" },
163 { CTL_INT
, VM_VFS_CACHE_PRESSURE
, "vfs_cache_pressure" },
164 { CTL_INT
, VM_LEGACY_VA_LAYOUT
, "legacy_va_layout" },
165 /* VM_SWAP_TOKEN_TIMEOUT unused */
166 { CTL_INT
, VM_DROP_PAGECACHE
, "drop_caches" },
167 { CTL_INT
, VM_PERCPU_PAGELIST_FRACTION
, "percpu_pagelist_fraction" },
168 { CTL_INT
, VM_ZONE_RECLAIM_MODE
, "zone_reclaim_mode" },
169 { CTL_INT
, VM_MIN_UNMAPPED
, "min_unmapped_ratio" },
170 { CTL_INT
, VM_PANIC_ON_OOM
, "panic_on_oom" },
171 { CTL_INT
, VM_VDSO_ENABLED
, "vdso_enabled" },
172 { CTL_INT
, VM_MIN_SLAB
, "min_slab_ratio" },
177 static const struct bin_table bin_net_core_table
[] = {
178 { CTL_INT
, NET_CORE_WMEM_MAX
, "wmem_max" },
179 { CTL_INT
, NET_CORE_RMEM_MAX
, "rmem_max" },
180 { CTL_INT
, NET_CORE_WMEM_DEFAULT
, "wmem_default" },
181 { CTL_INT
, NET_CORE_RMEM_DEFAULT
, "rmem_default" },
182 /* NET_CORE_DESTROY_DELAY unused */
183 { CTL_INT
, NET_CORE_MAX_BACKLOG
, "netdev_max_backlog" },
184 /* NET_CORE_FASTROUTE unused */
185 { CTL_INT
, NET_CORE_MSG_COST
, "message_cost" },
186 { CTL_INT
, NET_CORE_MSG_BURST
, "message_burst" },
187 { CTL_INT
, NET_CORE_OPTMEM_MAX
, "optmem_max" },
188 /* NET_CORE_HOT_LIST_LENGTH unused */
189 /* NET_CORE_DIVERT_VERSION unused */
190 /* NET_CORE_NO_CONG_THRESH unused */
191 /* NET_CORE_NO_CONG unused */
192 /* NET_CORE_LO_CONG unused */
193 /* NET_CORE_MOD_CONG unused */
194 { CTL_INT
, NET_CORE_DEV_WEIGHT
, "dev_weight" },
195 { CTL_INT
, NET_CORE_SOMAXCONN
, "somaxconn" },
196 { CTL_INT
, NET_CORE_BUDGET
, "netdev_budget" },
197 { CTL_INT
, NET_CORE_AEVENT_ETIME
, "xfrm_aevent_etime" },
198 { CTL_INT
, NET_CORE_AEVENT_RSEQTH
, "xfrm_aevent_rseqth" },
199 { CTL_INT
, NET_CORE_WARNINGS
, "warnings" },
203 static const struct bin_table bin_net_unix_table
[] = {
204 /* NET_UNIX_DESTROY_DELAY unused */
205 /* NET_UNIX_DELETE_DELAY unused */
206 { CTL_INT
, NET_UNIX_MAX_DGRAM_QLEN
, "max_dgram_qlen" },
210 static const struct bin_table bin_net_ipv4_route_table
[] = {
211 { CTL_INT
, NET_IPV4_ROUTE_FLUSH
, "flush" },
212 /* NET_IPV4_ROUTE_MIN_DELAY "min_delay" no longer used */
213 /* NET_IPV4_ROUTE_MAX_DELAY "max_delay" no longer used */
214 { CTL_INT
, NET_IPV4_ROUTE_GC_THRESH
, "gc_thresh" },
215 { CTL_INT
, NET_IPV4_ROUTE_MAX_SIZE
, "max_size" },
216 { CTL_INT
, NET_IPV4_ROUTE_GC_MIN_INTERVAL
, "gc_min_interval" },
217 { CTL_INT
, NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS
, "gc_min_interval_ms" },
218 { CTL_INT
, NET_IPV4_ROUTE_GC_TIMEOUT
, "gc_timeout" },
219 /* NET_IPV4_ROUTE_GC_INTERVAL "gc_interval" no longer used */
220 { CTL_INT
, NET_IPV4_ROUTE_REDIRECT_LOAD
, "redirect_load" },
221 { CTL_INT
, NET_IPV4_ROUTE_REDIRECT_NUMBER
, "redirect_number" },
222 { CTL_INT
, NET_IPV4_ROUTE_REDIRECT_SILENCE
, "redirect_silence" },
223 { CTL_INT
, NET_IPV4_ROUTE_ERROR_COST
, "error_cost" },
224 { CTL_INT
, NET_IPV4_ROUTE_ERROR_BURST
, "error_burst" },
225 { CTL_INT
, NET_IPV4_ROUTE_GC_ELASTICITY
, "gc_elasticity" },
226 { CTL_INT
, NET_IPV4_ROUTE_MTU_EXPIRES
, "mtu_expires" },
227 { CTL_INT
, NET_IPV4_ROUTE_MIN_PMTU
, "min_pmtu" },
228 { CTL_INT
, NET_IPV4_ROUTE_MIN_ADVMSS
, "min_adv_mss" },
232 static const struct bin_table bin_net_ipv4_conf_vars_table
[] = {
233 { CTL_INT
, NET_IPV4_CONF_FORWARDING
, "forwarding" },
234 { CTL_INT
, NET_IPV4_CONF_MC_FORWARDING
, "mc_forwarding" },
236 { CTL_INT
, NET_IPV4_CONF_ACCEPT_REDIRECTS
, "accept_redirects" },
237 { CTL_INT
, NET_IPV4_CONF_SECURE_REDIRECTS
, "secure_redirects" },
238 { CTL_INT
, NET_IPV4_CONF_SEND_REDIRECTS
, "send_redirects" },
239 { CTL_INT
, NET_IPV4_CONF_SHARED_MEDIA
, "shared_media" },
240 { CTL_INT
, NET_IPV4_CONF_RP_FILTER
, "rp_filter" },
241 { CTL_INT
, NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE
, "accept_source_route" },
242 { CTL_INT
, NET_IPV4_CONF_PROXY_ARP
, "proxy_arp" },
243 { CTL_INT
, NET_IPV4_CONF_MEDIUM_ID
, "medium_id" },
244 { CTL_INT
, NET_IPV4_CONF_BOOTP_RELAY
, "bootp_relay" },
245 { CTL_INT
, NET_IPV4_CONF_LOG_MARTIANS
, "log_martians" },
246 { CTL_INT
, NET_IPV4_CONF_TAG
, "tag" },
247 { CTL_INT
, NET_IPV4_CONF_ARPFILTER
, "arp_filter" },
248 { CTL_INT
, NET_IPV4_CONF_ARP_ANNOUNCE
, "arp_announce" },
249 { CTL_INT
, NET_IPV4_CONF_ARP_IGNORE
, "arp_ignore" },
250 { CTL_INT
, NET_IPV4_CONF_ARP_ACCEPT
, "arp_accept" },
251 { CTL_INT
, NET_IPV4_CONF_ARP_NOTIFY
, "arp_notify" },
253 { CTL_INT
, NET_IPV4_CONF_NOXFRM
, "disable_xfrm" },
254 { CTL_INT
, NET_IPV4_CONF_NOPOLICY
, "disable_policy" },
255 { CTL_INT
, NET_IPV4_CONF_FORCE_IGMP_VERSION
, "force_igmp_version" },
256 { CTL_INT
, NET_IPV4_CONF_PROMOTE_SECONDARIES
, "promote_secondaries" },
260 static const struct bin_table bin_net_ipv4_conf_table
[] = {
261 { CTL_DIR
, NET_PROTO_CONF_ALL
, "all", bin_net_ipv4_conf_vars_table
},
262 { CTL_DIR
, NET_PROTO_CONF_DEFAULT
, "default", bin_net_ipv4_conf_vars_table
},
263 { CTL_DIR
, 0, NULL
, bin_net_ipv4_conf_vars_table
},
267 static const struct bin_table bin_net_neigh_vars_table
[] = {
268 { CTL_INT
, NET_NEIGH_MCAST_SOLICIT
, "mcast_solicit" },
269 { CTL_INT
, NET_NEIGH_UCAST_SOLICIT
, "ucast_solicit" },
270 { CTL_INT
, NET_NEIGH_APP_SOLICIT
, "app_solicit" },
271 /* NET_NEIGH_RETRANS_TIME "retrans_time" no longer used */
272 { CTL_INT
, NET_NEIGH_REACHABLE_TIME
, "base_reachable_time" },
273 { CTL_INT
, NET_NEIGH_DELAY_PROBE_TIME
, "delay_first_probe_time" },
274 { CTL_INT
, NET_NEIGH_GC_STALE_TIME
, "gc_stale_time" },
275 { CTL_INT
, NET_NEIGH_UNRES_QLEN
, "unres_qlen" },
276 { CTL_INT
, NET_NEIGH_PROXY_QLEN
, "proxy_qlen" },
277 /* NET_NEIGH_ANYCAST_DELAY "anycast_delay" no longer used */
278 /* NET_NEIGH_PROXY_DELAY "proxy_delay" no longer used */
279 /* NET_NEIGH_LOCKTIME "locktime" no longer used */
280 { CTL_INT
, NET_NEIGH_GC_INTERVAL
, "gc_interval" },
281 { CTL_INT
, NET_NEIGH_GC_THRESH1
, "gc_thresh1" },
282 { CTL_INT
, NET_NEIGH_GC_THRESH2
, "gc_thresh2" },
283 { CTL_INT
, NET_NEIGH_GC_THRESH3
, "gc_thresh3" },
284 { CTL_INT
, NET_NEIGH_RETRANS_TIME_MS
, "retrans_time_ms" },
285 { CTL_INT
, NET_NEIGH_REACHABLE_TIME_MS
, "base_reachable_time_ms" },
289 static const struct bin_table bin_net_neigh_table
[] = {
290 { CTL_DIR
, NET_PROTO_CONF_DEFAULT
, "default", bin_net_neigh_vars_table
},
291 { CTL_DIR
, 0, NULL
, bin_net_neigh_vars_table
},
295 static const struct bin_table bin_net_ipv4_netfilter_table
[] = {
296 { CTL_INT
, NET_IPV4_NF_CONNTRACK_MAX
, "ip_conntrack_max" },
298 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT "ip_conntrack_tcp_timeout_syn_sent" no longer used */
299 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV "ip_conntrack_tcp_timeout_syn_recv" no longer used */
300 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED "ip_conntrack_tcp_timeout_established" no longer used */
301 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT "ip_conntrack_tcp_timeout_fin_wait" no longer used */
302 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT "ip_conntrack_tcp_timeout_close_wait" no longer used */
303 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK "ip_conntrack_tcp_timeout_last_ack" no longer used */
304 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT "ip_conntrack_tcp_timeout_time_wait" no longer used */
305 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE "ip_conntrack_tcp_timeout_close" no longer used */
307 /* NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT "ip_conntrack_udp_timeout" no longer used */
308 /* NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM "ip_conntrack_udp_timeout_stream" no longer used */
309 /* NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT "ip_conntrack_icmp_timeout" no longer used */
310 /* NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT "ip_conntrack_generic_timeout" no longer used */
312 { CTL_INT
, NET_IPV4_NF_CONNTRACK_BUCKETS
, "ip_conntrack_buckets" },
313 { CTL_INT
, NET_IPV4_NF_CONNTRACK_LOG_INVALID
, "ip_conntrack_log_invalid" },
314 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS "ip_conntrack_tcp_timeout_max_retrans" no longer used */
315 { CTL_INT
, NET_IPV4_NF_CONNTRACK_TCP_LOOSE
, "ip_conntrack_tcp_loose" },
316 { CTL_INT
, NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL
, "ip_conntrack_tcp_be_liberal" },
317 { CTL_INT
, NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS
, "ip_conntrack_tcp_max_retrans" },
319 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED "ip_conntrack_sctp_timeout_closed" no longer used */
320 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT "ip_conntrack_sctp_timeout_cookie_wait" no longer used */
321 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED "ip_conntrack_sctp_timeout_cookie_echoed" no longer used */
322 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED "ip_conntrack_sctp_timeout_established" no longer used */
323 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT "ip_conntrack_sctp_timeout_shutdown_sent" no longer used */
324 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD "ip_conntrack_sctp_timeout_shutdown_recd" no longer used */
325 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT "ip_conntrack_sctp_timeout_shutdown_ack_sent" no longer used */
327 { CTL_INT
, NET_IPV4_NF_CONNTRACK_COUNT
, "ip_conntrack_count" },
328 { CTL_INT
, NET_IPV4_NF_CONNTRACK_CHECKSUM
, "ip_conntrack_checksum" },
332 static const struct bin_table bin_net_ipv4_table
[] = {
333 {CTL_INT
, NET_IPV4_FORWARD
, "ip_forward" },
335 { CTL_DIR
, NET_IPV4_CONF
, "conf", bin_net_ipv4_conf_table
},
336 { CTL_DIR
, NET_IPV4_NEIGH
, "neigh", bin_net_neigh_table
},
337 { CTL_DIR
, NET_IPV4_ROUTE
, "route", bin_net_ipv4_route_table
},
338 /* NET_IPV4_FIB_HASH unused */
339 { CTL_DIR
, NET_IPV4_NETFILTER
, "netfilter", bin_net_ipv4_netfilter_table
},
341 { CTL_INT
, NET_IPV4_TCP_TIMESTAMPS
, "tcp_timestamps" },
342 { CTL_INT
, NET_IPV4_TCP_WINDOW_SCALING
, "tcp_window_scaling" },
343 { CTL_INT
, NET_IPV4_TCP_SACK
, "tcp_sack" },
344 { CTL_INT
, NET_IPV4_TCP_RETRANS_COLLAPSE
, "tcp_retrans_collapse" },
345 { CTL_INT
, NET_IPV4_DEFAULT_TTL
, "ip_default_ttl" },
346 /* NET_IPV4_AUTOCONFIG unused */
347 { CTL_INT
, NET_IPV4_NO_PMTU_DISC
, "ip_no_pmtu_disc" },
348 { CTL_INT
, NET_IPV4_NONLOCAL_BIND
, "ip_nonlocal_bind" },
349 { CTL_INT
, NET_IPV4_TCP_SYN_RETRIES
, "tcp_syn_retries" },
350 { CTL_INT
, NET_TCP_SYNACK_RETRIES
, "tcp_synack_retries" },
351 { CTL_INT
, NET_TCP_MAX_ORPHANS
, "tcp_max_orphans" },
352 { CTL_INT
, NET_TCP_MAX_TW_BUCKETS
, "tcp_max_tw_buckets" },
353 { CTL_INT
, NET_IPV4_DYNADDR
, "ip_dynaddr" },
354 { CTL_INT
, NET_IPV4_TCP_KEEPALIVE_TIME
, "tcp_keepalive_time" },
355 { CTL_INT
, NET_IPV4_TCP_KEEPALIVE_PROBES
, "tcp_keepalive_probes" },
356 { CTL_INT
, NET_IPV4_TCP_KEEPALIVE_INTVL
, "tcp_keepalive_intvl" },
357 { CTL_INT
, NET_IPV4_TCP_RETRIES1
, "tcp_retries1" },
358 { CTL_INT
, NET_IPV4_TCP_RETRIES2
, "tcp_retries2" },
359 { CTL_INT
, NET_IPV4_TCP_FIN_TIMEOUT
, "tcp_fin_timeout" },
360 { CTL_INT
, NET_TCP_SYNCOOKIES
, "tcp_syncookies" },
361 { CTL_INT
, NET_TCP_TW_RECYCLE
, "tcp_tw_recycle" },
362 { CTL_INT
, NET_TCP_ABORT_ON_OVERFLOW
, "tcp_abort_on_overflow" },
363 { CTL_INT
, NET_TCP_STDURG
, "tcp_stdurg" },
364 { CTL_INT
, NET_TCP_RFC1337
, "tcp_rfc1337" },
365 { CTL_INT
, NET_TCP_MAX_SYN_BACKLOG
, "tcp_max_syn_backlog" },
366 { CTL_INT
, NET_IPV4_LOCAL_PORT_RANGE
, "ip_local_port_range" },
367 { CTL_INT
, NET_IPV4_IGMP_MAX_MEMBERSHIPS
, "igmp_max_memberships" },
368 { CTL_INT
, NET_IPV4_IGMP_MAX_MSF
, "igmp_max_msf" },
369 { CTL_INT
, NET_IPV4_INET_PEER_THRESHOLD
, "inet_peer_threshold" },
370 { CTL_INT
, NET_IPV4_INET_PEER_MINTTL
, "inet_peer_minttl" },
371 { CTL_INT
, NET_IPV4_INET_PEER_MAXTTL
, "inet_peer_maxttl" },
372 { CTL_INT
, NET_IPV4_INET_PEER_GC_MINTIME
, "inet_peer_gc_mintime" },
373 { CTL_INT
, NET_IPV4_INET_PEER_GC_MAXTIME
, "inet_peer_gc_maxtime" },
374 { CTL_INT
, NET_TCP_ORPHAN_RETRIES
, "tcp_orphan_retries" },
375 { CTL_INT
, NET_TCP_FACK
, "tcp_fack" },
376 { CTL_INT
, NET_TCP_REORDERING
, "tcp_reordering" },
377 { CTL_INT
, NET_TCP_ECN
, "tcp_ecn" },
378 { CTL_INT
, NET_TCP_DSACK
, "tcp_dsack" },
379 { CTL_INT
, NET_TCP_MEM
, "tcp_mem" },
380 { CTL_INT
, NET_TCP_WMEM
, "tcp_wmem" },
381 { CTL_INT
, NET_TCP_RMEM
, "tcp_rmem" },
382 { CTL_INT
, NET_TCP_APP_WIN
, "tcp_app_win" },
383 { CTL_INT
, NET_TCP_ADV_WIN_SCALE
, "tcp_adv_win_scale" },
384 { CTL_INT
, NET_TCP_TW_REUSE
, "tcp_tw_reuse" },
385 { CTL_INT
, NET_TCP_FRTO
, "tcp_frto" },
386 { CTL_INT
, NET_TCP_FRTO_RESPONSE
, "tcp_frto_response" },
387 { CTL_INT
, NET_TCP_LOW_LATENCY
, "tcp_low_latency" },
388 { CTL_INT
, NET_TCP_NO_METRICS_SAVE
, "tcp_no_metrics_save" },
389 { CTL_INT
, NET_TCP_MODERATE_RCVBUF
, "tcp_moderate_rcvbuf" },
390 { CTL_INT
, NET_TCP_TSO_WIN_DIVISOR
, "tcp_tso_win_divisor" },
391 { CTL_STR
, NET_TCP_CONG_CONTROL
, "tcp_congestion_control" },
392 { CTL_INT
, NET_TCP_MTU_PROBING
, "tcp_mtu_probing" },
393 { CTL_INT
, NET_TCP_BASE_MSS
, "tcp_base_mss" },
394 { CTL_INT
, NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS
, "tcp_workaround_signed_windows" },
395 { CTL_INT
, NET_TCP_SLOW_START_AFTER_IDLE
, "tcp_slow_start_after_idle" },
396 { CTL_INT
, NET_CIPSOV4_CACHE_ENABLE
, "cipso_cache_enable" },
397 { CTL_INT
, NET_CIPSOV4_CACHE_BUCKET_SIZE
, "cipso_cache_bucket_size" },
398 { CTL_INT
, NET_CIPSOV4_RBM_OPTFMT
, "cipso_rbm_optfmt" },
399 { CTL_INT
, NET_CIPSOV4_RBM_STRICTVALID
, "cipso_rbm_strictvalid" },
400 /* NET_TCP_AVAIL_CONG_CONTROL "tcp_available_congestion_control" no longer used */
401 { CTL_STR
, NET_TCP_ALLOWED_CONG_CONTROL
, "tcp_allowed_congestion_control" },
402 { CTL_INT
, NET_TCP_MAX_SSTHRESH
, "tcp_max_ssthresh" },
404 { CTL_INT
, NET_IPV4_ICMP_ECHO_IGNORE_ALL
, "icmp_echo_ignore_all" },
405 { CTL_INT
, NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS
, "icmp_echo_ignore_broadcasts" },
406 { CTL_INT
, NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES
, "icmp_ignore_bogus_error_responses" },
407 { CTL_INT
, NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR
, "icmp_errors_use_inbound_ifaddr" },
408 { CTL_INT
, NET_IPV4_ICMP_RATELIMIT
, "icmp_ratelimit" },
409 { CTL_INT
, NET_IPV4_ICMP_RATEMASK
, "icmp_ratemask" },
411 { CTL_INT
, NET_IPV4_IPFRAG_HIGH_THRESH
, "ipfrag_high_thresh" },
412 { CTL_INT
, NET_IPV4_IPFRAG_LOW_THRESH
, "ipfrag_low_thresh" },
413 { CTL_INT
, NET_IPV4_IPFRAG_TIME
, "ipfrag_time" },
415 { CTL_INT
, NET_IPV4_IPFRAG_SECRET_INTERVAL
, "ipfrag_secret_interval" },
416 /* NET_IPV4_IPFRAG_MAX_DIST "ipfrag_max_dist" no longer used */
418 { CTL_INT
, 2088 /* NET_IPQ_QMAX */, "ip_queue_maxlen" },
420 /* NET_TCP_DEFAULT_WIN_SCALE unused */
421 /* NET_TCP_BIC_BETA unused */
422 /* NET_IPV4_TCP_MAX_KA_PROBES unused */
423 /* NET_IPV4_IP_MASQ_DEBUG unused */
424 /* NET_TCP_SYN_TAILDROP unused */
425 /* NET_IPV4_ICMP_SOURCEQUENCH_RATE unused */
426 /* NET_IPV4_ICMP_DESTUNREACH_RATE unused */
427 /* NET_IPV4_ICMP_TIMEEXCEED_RATE unused */
428 /* NET_IPV4_ICMP_PARAMPROB_RATE unused */
429 /* NET_IPV4_ICMP_ECHOREPLY_RATE unused */
430 /* NET_IPV4_ALWAYS_DEFRAG unused */
434 static const struct bin_table bin_net_ipx_table
[] = {
435 { CTL_INT
, NET_IPX_PPROP_BROADCASTING
, "ipx_pprop_broadcasting" },
436 /* NET_IPX_FORWARDING unused */
440 static const struct bin_table bin_net_atalk_table
[] = {
441 { CTL_INT
, NET_ATALK_AARP_EXPIRY_TIME
, "aarp-expiry-time" },
442 { CTL_INT
, NET_ATALK_AARP_TICK_TIME
, "aarp-tick-time" },
443 { CTL_INT
, NET_ATALK_AARP_RETRANSMIT_LIMIT
, "aarp-retransmit-limit" },
444 { CTL_INT
, NET_ATALK_AARP_RESOLVE_TIME
, "aarp-resolve-time" },
448 static const struct bin_table bin_net_netrom_table
[] = {
449 { CTL_INT
, NET_NETROM_DEFAULT_PATH_QUALITY
, "default_path_quality" },
450 { CTL_INT
, NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER
, "obsolescence_count_initialiser" },
451 { CTL_INT
, NET_NETROM_NETWORK_TTL_INITIALISER
, "network_ttl_initialiser" },
452 { CTL_INT
, NET_NETROM_TRANSPORT_TIMEOUT
, "transport_timeout" },
453 { CTL_INT
, NET_NETROM_TRANSPORT_MAXIMUM_TRIES
, "transport_maximum_tries" },
454 { CTL_INT
, NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY
, "transport_acknowledge_delay" },
455 { CTL_INT
, NET_NETROM_TRANSPORT_BUSY_DELAY
, "transport_busy_delay" },
456 { CTL_INT
, NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE
, "transport_requested_window_size" },
457 { CTL_INT
, NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT
, "transport_no_activity_timeout" },
458 { CTL_INT
, NET_NETROM_ROUTING_CONTROL
, "routing_control" },
459 { CTL_INT
, NET_NETROM_LINK_FAILS_COUNT
, "link_fails_count" },
460 { CTL_INT
, NET_NETROM_RESET
, "reset" },
464 static const struct bin_table bin_net_ax25_param_table
[] = {
465 { CTL_INT
, NET_AX25_IP_DEFAULT_MODE
, "ip_default_mode" },
466 { CTL_INT
, NET_AX25_DEFAULT_MODE
, "ax25_default_mode" },
467 { CTL_INT
, NET_AX25_BACKOFF_TYPE
, "backoff_type" },
468 { CTL_INT
, NET_AX25_CONNECT_MODE
, "connect_mode" },
469 { CTL_INT
, NET_AX25_STANDARD_WINDOW
, "standard_window_size" },
470 { CTL_INT
, NET_AX25_EXTENDED_WINDOW
, "extended_window_size" },
471 { CTL_INT
, NET_AX25_T1_TIMEOUT
, "t1_timeout" },
472 { CTL_INT
, NET_AX25_T2_TIMEOUT
, "t2_timeout" },
473 { CTL_INT
, NET_AX25_T3_TIMEOUT
, "t3_timeout" },
474 { CTL_INT
, NET_AX25_IDLE_TIMEOUT
, "idle_timeout" },
475 { CTL_INT
, NET_AX25_N2
, "maximum_retry_count" },
476 { CTL_INT
, NET_AX25_PACLEN
, "maximum_packet_length" },
477 { CTL_INT
, NET_AX25_PROTOCOL
, "protocol" },
478 { CTL_INT
, NET_AX25_DAMA_SLAVE_TIMEOUT
, "dama_slave_timeout" },
482 static const struct bin_table bin_net_ax25_table
[] = {
483 { CTL_DIR
, 0, NULL
, bin_net_ax25_param_table
},
487 static const struct bin_table bin_net_rose_table
[] = {
488 { CTL_INT
, NET_ROSE_RESTART_REQUEST_TIMEOUT
, "restart_request_timeout" },
489 { CTL_INT
, NET_ROSE_CALL_REQUEST_TIMEOUT
, "call_request_timeout" },
490 { CTL_INT
, NET_ROSE_RESET_REQUEST_TIMEOUT
, "reset_request_timeout" },
491 { CTL_INT
, NET_ROSE_CLEAR_REQUEST_TIMEOUT
, "clear_request_timeout" },
492 { CTL_INT
, NET_ROSE_ACK_HOLD_BACK_TIMEOUT
, "acknowledge_hold_back_timeout" },
493 { CTL_INT
, NET_ROSE_ROUTING_CONTROL
, "routing_control" },
494 { CTL_INT
, NET_ROSE_LINK_FAIL_TIMEOUT
, "link_fail_timeout" },
495 { CTL_INT
, NET_ROSE_MAX_VCS
, "maximum_virtual_circuits" },
496 { CTL_INT
, NET_ROSE_WINDOW_SIZE
, "window_size" },
497 { CTL_INT
, NET_ROSE_NO_ACTIVITY_TIMEOUT
, "no_activity_timeout" },
501 static const struct bin_table bin_net_ipv6_conf_var_table
[] = {
502 { CTL_INT
, NET_IPV6_FORWARDING
, "forwarding" },
503 { CTL_INT
, NET_IPV6_HOP_LIMIT
, "hop_limit" },
504 { CTL_INT
, NET_IPV6_MTU
, "mtu" },
505 { CTL_INT
, NET_IPV6_ACCEPT_RA
, "accept_ra" },
506 { CTL_INT
, NET_IPV6_ACCEPT_REDIRECTS
, "accept_redirects" },
507 { CTL_INT
, NET_IPV6_AUTOCONF
, "autoconf" },
508 { CTL_INT
, NET_IPV6_DAD_TRANSMITS
, "dad_transmits" },
509 { CTL_INT
, NET_IPV6_RTR_SOLICITS
, "router_solicitations" },
510 { CTL_INT
, NET_IPV6_RTR_SOLICIT_INTERVAL
, "router_solicitation_interval" },
511 { CTL_INT
, NET_IPV6_RTR_SOLICIT_DELAY
, "router_solicitation_delay" },
512 { CTL_INT
, NET_IPV6_USE_TEMPADDR
, "use_tempaddr" },
513 { CTL_INT
, NET_IPV6_TEMP_VALID_LFT
, "temp_valid_lft" },
514 { CTL_INT
, NET_IPV6_TEMP_PREFERED_LFT
, "temp_prefered_lft" },
515 { CTL_INT
, NET_IPV6_REGEN_MAX_RETRY
, "regen_max_retry" },
516 { CTL_INT
, NET_IPV6_MAX_DESYNC_FACTOR
, "max_desync_factor" },
517 { CTL_INT
, NET_IPV6_MAX_ADDRESSES
, "max_addresses" },
518 { CTL_INT
, NET_IPV6_FORCE_MLD_VERSION
, "force_mld_version" },
519 { CTL_INT
, NET_IPV6_ACCEPT_RA_DEFRTR
, "accept_ra_defrtr" },
520 { CTL_INT
, NET_IPV6_ACCEPT_RA_PINFO
, "accept_ra_pinfo" },
521 { CTL_INT
, NET_IPV6_ACCEPT_RA_RTR_PREF
, "accept_ra_rtr_pref" },
522 { CTL_INT
, NET_IPV6_RTR_PROBE_INTERVAL
, "router_probe_interval" },
523 { CTL_INT
, NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN
, "accept_ra_rt_info_max_plen" },
524 { CTL_INT
, NET_IPV6_PROXY_NDP
, "proxy_ndp" },
525 { CTL_INT
, NET_IPV6_ACCEPT_SOURCE_ROUTE
, "accept_source_route" },
526 { CTL_INT
, NET_IPV6_ACCEPT_RA_FROM_LOCAL
, "accept_ra_from_local" },
530 static const struct bin_table bin_net_ipv6_conf_table
[] = {
531 { CTL_DIR
, NET_PROTO_CONF_ALL
, "all", bin_net_ipv6_conf_var_table
},
532 { CTL_DIR
, NET_PROTO_CONF_DEFAULT
, "default", bin_net_ipv6_conf_var_table
},
533 { CTL_DIR
, 0, NULL
, bin_net_ipv6_conf_var_table
},
537 static const struct bin_table bin_net_ipv6_route_table
[] = {
538 /* NET_IPV6_ROUTE_FLUSH "flush" no longer used */
539 { CTL_INT
, NET_IPV6_ROUTE_GC_THRESH
, "gc_thresh" },
540 { CTL_INT
, NET_IPV6_ROUTE_MAX_SIZE
, "max_size" },
541 { CTL_INT
, NET_IPV6_ROUTE_GC_MIN_INTERVAL
, "gc_min_interval" },
542 { CTL_INT
, NET_IPV6_ROUTE_GC_TIMEOUT
, "gc_timeout" },
543 { CTL_INT
, NET_IPV6_ROUTE_GC_INTERVAL
, "gc_interval" },
544 { CTL_INT
, NET_IPV6_ROUTE_GC_ELASTICITY
, "gc_elasticity" },
545 { CTL_INT
, NET_IPV6_ROUTE_MTU_EXPIRES
, "mtu_expires" },
546 { CTL_INT
, NET_IPV6_ROUTE_MIN_ADVMSS
, "min_adv_mss" },
547 { CTL_INT
, NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS
, "gc_min_interval_ms" },
551 static const struct bin_table bin_net_ipv6_icmp_table
[] = {
552 { CTL_INT
, NET_IPV6_ICMP_RATELIMIT
, "ratelimit" },
556 static const struct bin_table bin_net_ipv6_table
[] = {
557 { CTL_DIR
, NET_IPV6_CONF
, "conf", bin_net_ipv6_conf_table
},
558 { CTL_DIR
, NET_IPV6_NEIGH
, "neigh", bin_net_neigh_table
},
559 { CTL_DIR
, NET_IPV6_ROUTE
, "route", bin_net_ipv6_route_table
},
560 { CTL_DIR
, NET_IPV6_ICMP
, "icmp", bin_net_ipv6_icmp_table
},
561 { CTL_INT
, NET_IPV6_BINDV6ONLY
, "bindv6only" },
562 { CTL_INT
, NET_IPV6_IP6FRAG_HIGH_THRESH
, "ip6frag_high_thresh" },
563 { CTL_INT
, NET_IPV6_IP6FRAG_LOW_THRESH
, "ip6frag_low_thresh" },
564 { CTL_INT
, NET_IPV6_IP6FRAG_TIME
, "ip6frag_time" },
565 { CTL_INT
, NET_IPV6_IP6FRAG_SECRET_INTERVAL
, "ip6frag_secret_interval" },
566 { CTL_INT
, NET_IPV6_MLD_MAX_MSF
, "mld_max_msf" },
567 { CTL_INT
, 2088 /* IPQ_QMAX */, "ip6_queue_maxlen" },
571 static const struct bin_table bin_net_x25_table
[] = {
572 { CTL_INT
, NET_X25_RESTART_REQUEST_TIMEOUT
, "restart_request_timeout" },
573 { CTL_INT
, NET_X25_CALL_REQUEST_TIMEOUT
, "call_request_timeout" },
574 { CTL_INT
, NET_X25_RESET_REQUEST_TIMEOUT
, "reset_request_timeout" },
575 { CTL_INT
, NET_X25_CLEAR_REQUEST_TIMEOUT
, "clear_request_timeout" },
576 { CTL_INT
, NET_X25_ACK_HOLD_BACK_TIMEOUT
, "acknowledgement_hold_back_timeout" },
577 { CTL_INT
, NET_X25_FORWARD
, "x25_forward" },
581 static const struct bin_table bin_net_tr_table
[] = {
582 { CTL_INT
, NET_TR_RIF_TIMEOUT
, "rif_timeout" },
587 static const struct bin_table bin_net_decnet_conf_vars
[] = {
588 { CTL_INT
, NET_DECNET_CONF_DEV_FORWARDING
, "forwarding" },
589 { CTL_INT
, NET_DECNET_CONF_DEV_PRIORITY
, "priority" },
590 { CTL_INT
, NET_DECNET_CONF_DEV_T2
, "t2" },
591 { CTL_INT
, NET_DECNET_CONF_DEV_T3
, "t3" },
595 static const struct bin_table bin_net_decnet_conf
[] = {
596 { CTL_DIR
, NET_DECNET_CONF_ETHER
, "ethernet", bin_net_decnet_conf_vars
},
597 { CTL_DIR
, NET_DECNET_CONF_GRE
, "ipgre", bin_net_decnet_conf_vars
},
598 { CTL_DIR
, NET_DECNET_CONF_X25
, "x25", bin_net_decnet_conf_vars
},
599 { CTL_DIR
, NET_DECNET_CONF_PPP
, "ppp", bin_net_decnet_conf_vars
},
600 { CTL_DIR
, NET_DECNET_CONF_DDCMP
, "ddcmp", bin_net_decnet_conf_vars
},
601 { CTL_DIR
, NET_DECNET_CONF_LOOPBACK
, "loopback", bin_net_decnet_conf_vars
},
602 { CTL_DIR
, 0, NULL
, bin_net_decnet_conf_vars
},
606 static const struct bin_table bin_net_decnet_table
[] = {
607 { CTL_DIR
, NET_DECNET_CONF
, "conf", bin_net_decnet_conf
},
608 { CTL_DNADR
, NET_DECNET_NODE_ADDRESS
, "node_address" },
609 { CTL_STR
, NET_DECNET_NODE_NAME
, "node_name" },
610 { CTL_STR
, NET_DECNET_DEFAULT_DEVICE
, "default_device" },
611 { CTL_INT
, NET_DECNET_TIME_WAIT
, "time_wait" },
612 { CTL_INT
, NET_DECNET_DN_COUNT
, "dn_count" },
613 { CTL_INT
, NET_DECNET_DI_COUNT
, "di_count" },
614 { CTL_INT
, NET_DECNET_DR_COUNT
, "dr_count" },
615 { CTL_INT
, NET_DECNET_DST_GC_INTERVAL
, "dst_gc_interval" },
616 { CTL_INT
, NET_DECNET_NO_FC_MAX_CWND
, "no_fc_max_cwnd" },
617 { CTL_INT
, NET_DECNET_MEM
, "decnet_mem" },
618 { CTL_INT
, NET_DECNET_RMEM
, "decnet_rmem" },
619 { CTL_INT
, NET_DECNET_WMEM
, "decnet_wmem" },
620 { CTL_INT
, NET_DECNET_DEBUG_LEVEL
, "debug" },
624 static const struct bin_table bin_net_sctp_table
[] = {
625 { CTL_INT
, NET_SCTP_RTO_INITIAL
, "rto_initial" },
626 { CTL_INT
, NET_SCTP_RTO_MIN
, "rto_min" },
627 { CTL_INT
, NET_SCTP_RTO_MAX
, "rto_max" },
628 { CTL_INT
, NET_SCTP_RTO_ALPHA
, "rto_alpha_exp_divisor" },
629 { CTL_INT
, NET_SCTP_RTO_BETA
, "rto_beta_exp_divisor" },
630 { CTL_INT
, NET_SCTP_VALID_COOKIE_LIFE
, "valid_cookie_life" },
631 { CTL_INT
, NET_SCTP_ASSOCIATION_MAX_RETRANS
, "association_max_retrans" },
632 { CTL_INT
, NET_SCTP_PATH_MAX_RETRANS
, "path_max_retrans" },
633 { CTL_INT
, NET_SCTP_MAX_INIT_RETRANSMITS
, "max_init_retransmits" },
634 { CTL_INT
, NET_SCTP_HB_INTERVAL
, "hb_interval" },
635 { CTL_INT
, NET_SCTP_PRESERVE_ENABLE
, "cookie_preserve_enable" },
636 { CTL_INT
, NET_SCTP_MAX_BURST
, "max_burst" },
637 { CTL_INT
, NET_SCTP_ADDIP_ENABLE
, "addip_enable" },
638 { CTL_INT
, NET_SCTP_PRSCTP_ENABLE
, "prsctp_enable" },
639 { CTL_INT
, NET_SCTP_SNDBUF_POLICY
, "sndbuf_policy" },
640 { CTL_INT
, NET_SCTP_SACK_TIMEOUT
, "sack_timeout" },
641 { CTL_INT
, NET_SCTP_RCVBUF_POLICY
, "rcvbuf_policy" },
645 static const struct bin_table bin_net_llc_llc2_timeout_table
[] = {
646 { CTL_INT
, NET_LLC2_ACK_TIMEOUT
, "ack" },
647 { CTL_INT
, NET_LLC2_P_TIMEOUT
, "p" },
648 { CTL_INT
, NET_LLC2_REJ_TIMEOUT
, "rej" },
649 { CTL_INT
, NET_LLC2_BUSY_TIMEOUT
, "busy" },
653 static const struct bin_table bin_net_llc_station_table
[] = {
654 { CTL_INT
, NET_LLC_STATION_ACK_TIMEOUT
, "ack_timeout" },
658 static const struct bin_table bin_net_llc_llc2_table
[] = {
659 { CTL_DIR
, NET_LLC2
, "timeout", bin_net_llc_llc2_timeout_table
},
663 static const struct bin_table bin_net_llc_table
[] = {
664 { CTL_DIR
, NET_LLC2
, "llc2", bin_net_llc_llc2_table
},
665 { CTL_DIR
, NET_LLC_STATION
, "station", bin_net_llc_station_table
},
669 static const struct bin_table bin_net_netfilter_table
[] = {
670 { CTL_INT
, NET_NF_CONNTRACK_MAX
, "nf_conntrack_max" },
671 /* NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT "nf_conntrack_tcp_timeout_syn_sent" no longer used */
672 /* NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV "nf_conntrack_tcp_timeout_syn_recv" no longer used */
673 /* NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED "nf_conntrack_tcp_timeout_established" no longer used */
674 /* NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT "nf_conntrack_tcp_timeout_fin_wait" no longer used */
675 /* NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT "nf_conntrack_tcp_timeout_close_wait" no longer used */
676 /* NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK "nf_conntrack_tcp_timeout_last_ack" no longer used */
677 /* NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT "nf_conntrack_tcp_timeout_time_wait" no longer used */
678 /* NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE "nf_conntrack_tcp_timeout_close" no longer used */
679 /* NET_NF_CONNTRACK_UDP_TIMEOUT "nf_conntrack_udp_timeout" no longer used */
680 /* NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM "nf_conntrack_udp_timeout_stream" no longer used */
681 /* NET_NF_CONNTRACK_ICMP_TIMEOUT "nf_conntrack_icmp_timeout" no longer used */
682 /* NET_NF_CONNTRACK_GENERIC_TIMEOUT "nf_conntrack_generic_timeout" no longer used */
683 { CTL_INT
, NET_NF_CONNTRACK_BUCKETS
, "nf_conntrack_buckets" },
684 { CTL_INT
, NET_NF_CONNTRACK_LOG_INVALID
, "nf_conntrack_log_invalid" },
685 /* NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS "nf_conntrack_tcp_timeout_max_retrans" no longer used */
686 { CTL_INT
, NET_NF_CONNTRACK_TCP_LOOSE
, "nf_conntrack_tcp_loose" },
687 { CTL_INT
, NET_NF_CONNTRACK_TCP_BE_LIBERAL
, "nf_conntrack_tcp_be_liberal" },
688 { CTL_INT
, NET_NF_CONNTRACK_TCP_MAX_RETRANS
, "nf_conntrack_tcp_max_retrans" },
689 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED "nf_conntrack_sctp_timeout_closed" no longer used */
690 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT "nf_conntrack_sctp_timeout_cookie_wait" no longer used */
691 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED "nf_conntrack_sctp_timeout_cookie_echoed" no longer used */
692 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED "nf_conntrack_sctp_timeout_established" no longer used */
693 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT "nf_conntrack_sctp_timeout_shutdown_sent" no longer used */
694 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD "nf_conntrack_sctp_timeout_shutdown_recd" no longer used */
695 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT "nf_conntrack_sctp_timeout_shutdown_ack_sent" no longer used */
696 { CTL_INT
, NET_NF_CONNTRACK_COUNT
, "nf_conntrack_count" },
697 /* NET_NF_CONNTRACK_ICMPV6_TIMEOUT "nf_conntrack_icmpv6_timeout" no longer used */
698 /* NET_NF_CONNTRACK_FRAG6_TIMEOUT "nf_conntrack_frag6_timeout" no longer used */
699 { CTL_INT
, NET_NF_CONNTRACK_FRAG6_LOW_THRESH
, "nf_conntrack_frag6_low_thresh" },
700 { CTL_INT
, NET_NF_CONNTRACK_FRAG6_HIGH_THRESH
, "nf_conntrack_frag6_high_thresh" },
701 { CTL_INT
, NET_NF_CONNTRACK_CHECKSUM
, "nf_conntrack_checksum" },
706 static const struct bin_table bin_net_irda_table
[] = {
707 { CTL_INT
, NET_IRDA_DISCOVERY
, "discovery" },
708 { CTL_STR
, NET_IRDA_DEVNAME
, "devname" },
709 { CTL_INT
, NET_IRDA_DEBUG
, "debug" },
710 { CTL_INT
, NET_IRDA_FAST_POLL
, "fast_poll_increase" },
711 { CTL_INT
, NET_IRDA_DISCOVERY_SLOTS
, "discovery_slots" },
712 { CTL_INT
, NET_IRDA_DISCOVERY_TIMEOUT
, "discovery_timeout" },
713 { CTL_INT
, NET_IRDA_SLOT_TIMEOUT
, "slot_timeout" },
714 { CTL_INT
, NET_IRDA_MAX_BAUD_RATE
, "max_baud_rate" },
715 { CTL_INT
, NET_IRDA_MIN_TX_TURN_TIME
, "min_tx_turn_time" },
716 { CTL_INT
, NET_IRDA_MAX_TX_DATA_SIZE
, "max_tx_data_size" },
717 { CTL_INT
, NET_IRDA_MAX_TX_WINDOW
, "max_tx_window" },
718 { CTL_INT
, NET_IRDA_MAX_NOREPLY_TIME
, "max_noreply_time" },
719 { CTL_INT
, NET_IRDA_WARN_NOREPLY_TIME
, "warn_noreply_time" },
720 { CTL_INT
, NET_IRDA_LAP_KEEPALIVE_TIME
, "lap_keepalive_time" },
724 static const struct bin_table bin_net_table
[] = {
725 { CTL_DIR
, NET_CORE
, "core", bin_net_core_table
},
726 /* NET_ETHER not used */
727 /* NET_802 not used */
728 { CTL_DIR
, NET_UNIX
, "unix", bin_net_unix_table
},
729 { CTL_DIR
, NET_IPV4
, "ipv4", bin_net_ipv4_table
},
730 { CTL_DIR
, NET_IPX
, "ipx", bin_net_ipx_table
},
731 { CTL_DIR
, NET_ATALK
, "appletalk", bin_net_atalk_table
},
732 { CTL_DIR
, NET_NETROM
, "netrom", bin_net_netrom_table
},
733 { CTL_DIR
, NET_AX25
, "ax25", bin_net_ax25_table
},
734 /* NET_BRIDGE "bridge" no longer used */
735 { CTL_DIR
, NET_ROSE
, "rose", bin_net_rose_table
},
736 { CTL_DIR
, NET_IPV6
, "ipv6", bin_net_ipv6_table
},
737 { CTL_DIR
, NET_X25
, "x25", bin_net_x25_table
},
738 { CTL_DIR
, NET_TR
, "token-ring", bin_net_tr_table
},
739 { CTL_DIR
, NET_DECNET
, "decnet", bin_net_decnet_table
},
740 /* NET_ECONET not used */
741 { CTL_DIR
, NET_SCTP
, "sctp", bin_net_sctp_table
},
742 { CTL_DIR
, NET_LLC
, "llc", bin_net_llc_table
},
743 { CTL_DIR
, NET_NETFILTER
, "netfilter", bin_net_netfilter_table
},
744 /* NET_DCCP "dccp" no longer used */
745 { CTL_DIR
, NET_IRDA
, "irda", bin_net_irda_table
},
746 { CTL_INT
, 2089, "nf_conntrack_max" },
750 static const struct bin_table bin_fs_quota_table
[] = {
751 { CTL_INT
, FS_DQ_LOOKUPS
, "lookups" },
752 { CTL_INT
, FS_DQ_DROPS
, "drops" },
753 { CTL_INT
, FS_DQ_READS
, "reads" },
754 { CTL_INT
, FS_DQ_WRITES
, "writes" },
755 { CTL_INT
, FS_DQ_CACHE_HITS
, "cache_hits" },
756 { CTL_INT
, FS_DQ_ALLOCATED
, "allocated_dquots" },
757 { CTL_INT
, FS_DQ_FREE
, "free_dquots" },
758 { CTL_INT
, FS_DQ_SYNCS
, "syncs" },
759 { CTL_INT
, FS_DQ_WARNINGS
, "warnings" },
763 static const struct bin_table bin_fs_xfs_table
[] = {
764 { CTL_INT
, XFS_SGID_INHERIT
, "irix_sgid_inherit" },
765 { CTL_INT
, XFS_SYMLINK_MODE
, "irix_symlink_mode" },
766 { CTL_INT
, XFS_PANIC_MASK
, "panic_mask" },
768 { CTL_INT
, XFS_ERRLEVEL
, "error_level" },
769 { CTL_INT
, XFS_SYNCD_TIMER
, "xfssyncd_centisecs" },
770 { CTL_INT
, XFS_INHERIT_SYNC
, "inherit_sync" },
771 { CTL_INT
, XFS_INHERIT_NODUMP
, "inherit_nodump" },
772 { CTL_INT
, XFS_INHERIT_NOATIME
, "inherit_noatime" },
773 { CTL_INT
, XFS_BUF_TIMER
, "xfsbufd_centisecs" },
774 { CTL_INT
, XFS_BUF_AGE
, "age_buffer_centisecs" },
775 { CTL_INT
, XFS_INHERIT_NOSYM
, "inherit_nosymlinks" },
776 { CTL_INT
, XFS_ROTORSTEP
, "rotorstep" },
777 { CTL_INT
, XFS_INHERIT_NODFRG
, "inherit_nodefrag" },
778 { CTL_INT
, XFS_FILESTREAM_TIMER
, "filestream_centisecs" },
779 { CTL_INT
, XFS_STATS_CLEAR
, "stats_clear" },
783 static const struct bin_table bin_fs_ocfs2_nm_table
[] = {
784 { CTL_STR
, 1, "hb_ctl_path" },
788 static const struct bin_table bin_fs_ocfs2_table
[] = {
789 { CTL_DIR
, 1, "nm", bin_fs_ocfs2_nm_table
},
793 static const struct bin_table bin_inotify_table
[] = {
794 { CTL_INT
, INOTIFY_MAX_USER_INSTANCES
, "max_user_instances" },
795 { CTL_INT
, INOTIFY_MAX_USER_WATCHES
, "max_user_watches" },
796 { CTL_INT
, INOTIFY_MAX_QUEUED_EVENTS
, "max_queued_events" },
800 static const struct bin_table bin_fs_table
[] = {
801 { CTL_INT
, FS_NRINODE
, "inode-nr" },
802 { CTL_INT
, FS_STATINODE
, "inode-state" },
803 /* FS_MAXINODE unused */
804 /* FS_NRDQUOT unused */
805 /* FS_MAXDQUOT unused */
806 /* FS_NRFILE "file-nr" no longer used */
807 { CTL_INT
, FS_MAXFILE
, "file-max" },
808 { CTL_INT
, FS_DENTRY
, "dentry-state" },
809 /* FS_NRSUPER unused */
810 /* FS_MAXUPSER unused */
811 { CTL_INT
, FS_OVERFLOWUID
, "overflowuid" },
812 { CTL_INT
, FS_OVERFLOWGID
, "overflowgid" },
813 { CTL_INT
, FS_LEASES
, "leases-enable" },
814 { CTL_INT
, FS_DIR_NOTIFY
, "dir-notify-enable" },
815 { CTL_INT
, FS_LEASE_TIME
, "lease-break-time" },
816 { CTL_DIR
, FS_DQSTATS
, "quota", bin_fs_quota_table
},
817 { CTL_DIR
, FS_XFS
, "xfs", bin_fs_xfs_table
},
818 { CTL_ULONG
, FS_AIO_NR
, "aio-nr" },
819 { CTL_ULONG
, FS_AIO_MAX_NR
, "aio-max-nr" },
820 { CTL_DIR
, FS_INOTIFY
, "inotify", bin_inotify_table
},
821 { CTL_DIR
, FS_OCFS2
, "ocfs2", bin_fs_ocfs2_table
},
822 { CTL_INT
, KERN_SETUID_DUMPABLE
, "suid_dumpable" },
826 static const struct bin_table bin_ipmi_table
[] = {
827 { CTL_INT
, DEV_IPMI_POWEROFF_POWERCYCLE
, "poweroff_powercycle" },
831 static const struct bin_table bin_mac_hid_files
[] = {
832 /* DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES unused */
833 /* DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES unused */
834 { CTL_INT
, DEV_MAC_HID_MOUSE_BUTTON_EMULATION
, "mouse_button_emulation" },
835 { CTL_INT
, DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE
, "mouse_button2_keycode" },
836 { CTL_INT
, DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE
, "mouse_button3_keycode" },
837 /* DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES unused */
841 static const struct bin_table bin_raid_table
[] = {
842 { CTL_INT
, DEV_RAID_SPEED_LIMIT_MIN
, "speed_limit_min" },
843 { CTL_INT
, DEV_RAID_SPEED_LIMIT_MAX
, "speed_limit_max" },
847 static const struct bin_table bin_scsi_table
[] = {
848 { CTL_INT
, DEV_SCSI_LOGGING_LEVEL
, "logging_level" },
852 static const struct bin_table bin_dev_table
[] = {
853 /* DEV_CDROM "cdrom" no longer used */
854 /* DEV_HWMON unused */
855 /* DEV_PARPORT "parport" no longer used */
856 { CTL_DIR
, DEV_RAID
, "raid", bin_raid_table
},
857 { CTL_DIR
, DEV_MAC_HID
, "mac_hid", bin_mac_hid_files
},
858 { CTL_DIR
, DEV_SCSI
, "scsi", bin_scsi_table
},
859 { CTL_DIR
, DEV_IPMI
, "ipmi", bin_ipmi_table
},
863 static const struct bin_table bin_bus_isa_table
[] = {
864 { CTL_INT
, BUS_ISA_MEM_BASE
, "membase" },
865 { CTL_INT
, BUS_ISA_PORT_BASE
, "portbase" },
866 { CTL_INT
, BUS_ISA_PORT_SHIFT
, "portshift" },
870 static const struct bin_table bin_bus_table
[] = {
871 { CTL_DIR
, CTL_BUS_ISA
, "isa", bin_bus_isa_table
},
876 static const struct bin_table bin_s390dbf_table
[] = {
877 { CTL_INT
, 5678 /* CTL_S390DBF_STOPPABLE */, "debug_stoppable" },
878 { CTL_INT
, 5679 /* CTL_S390DBF_ACTIVE */, "debug_active" },
882 static const struct bin_table bin_sunrpc_table
[] = {
883 /* CTL_RPCDEBUG "rpc_debug" no longer used */
884 /* CTL_NFSDEBUG "nfs_debug" no longer used */
885 /* CTL_NFSDDEBUG "nfsd_debug" no longer used */
886 /* CTL_NLMDEBUG "nlm_debug" no longer used */
888 { CTL_INT
, CTL_SLOTTABLE_UDP
, "udp_slot_table_entries" },
889 { CTL_INT
, CTL_SLOTTABLE_TCP
, "tcp_slot_table_entries" },
890 { CTL_INT
, CTL_MIN_RESVPORT
, "min_resvport" },
891 { CTL_INT
, CTL_MAX_RESVPORT
, "max_resvport" },
895 static const struct bin_table bin_pm_table
[] = {
897 /* 1 == CTL_PM_SUSPEND "suspend" no longer used" */
898 { CTL_INT
, 2 /* CTL_PM_CMODE */, "cmode" },
899 { CTL_INT
, 3 /* CTL_PM_P0 */, "p0" },
900 { CTL_INT
, 4 /* CTL_PM_CM */, "cm" },
904 static const struct bin_table bin_root_table
[] = {
905 { CTL_DIR
, CTL_KERN
, "kernel", bin_kern_table
},
906 { CTL_DIR
, CTL_VM
, "vm", bin_vm_table
},
907 { CTL_DIR
, CTL_NET
, "net", bin_net_table
},
908 /* CTL_PROC not used */
909 { CTL_DIR
, CTL_FS
, "fs", bin_fs_table
},
910 /* CTL_DEBUG "debug" no longer used */
911 { CTL_DIR
, CTL_DEV
, "dev", bin_dev_table
},
912 { CTL_DIR
, CTL_BUS
, "bus", bin_bus_table
},
913 { CTL_DIR
, CTL_ABI
, "abi" },
914 /* CTL_CPU not used */
915 /* CTL_ARLAN "arlan" no longer used */
916 { CTL_DIR
, CTL_S390DBF
, "s390dbf", bin_s390dbf_table
},
917 { CTL_DIR
, CTL_SUNRPC
, "sunrpc", bin_sunrpc_table
},
918 { CTL_DIR
, CTL_PM
, "pm", bin_pm_table
},
922 static ssize_t
bin_dir(struct file
*file
,
923 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
929 static ssize_t
bin_string(struct file
*file
,
930 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
932 ssize_t result
, copied
= 0;
934 if (oldval
&& oldlen
) {
939 result
= vfs_read(file
, oldval
, oldlen
, &pos
);
944 lastp
= oldval
+ copied
- 1;
947 if (get_user(ch
, lastp
))
950 /* Trim off the trailing newline */
953 if (put_user('\0', lastp
))
959 if (newval
&& newlen
) {
962 result
= vfs_write(file
, newval
, newlen
, &pos
);
972 static ssize_t
bin_intvec(struct file
*file
,
973 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
980 buffer
= kmalloc(BUFSZ
, GFP_KERNEL
);
984 if (oldval
&& oldlen
) {
985 unsigned __user
*vec
= oldval
;
986 size_t length
= oldlen
/ sizeof(*vec
);
990 result
= kernel_read(file
, 0, buffer
, BUFSZ
- 1);
997 for (i
= 0; i
< length
; i
++) {
1000 value
= simple_strtoul(str
, &str
, 10);
1001 while (isspace(*str
))
1005 if (put_user(value
, vec
+ i
))
1008 copied
+= sizeof(*vec
);
1014 if (newval
&& newlen
) {
1015 unsigned __user
*vec
= newval
;
1016 size_t length
= newlen
/ sizeof(*vec
);
1022 for (i
= 0; i
< length
; i
++) {
1023 unsigned long value
;
1026 if (get_user(value
, vec
+ i
))
1029 str
+= scnprintf(str
, end
- str
, "%lu\t", value
);
1032 result
= kernel_write(file
, buffer
, str
- buffer
, 0);
1043 static ssize_t
bin_ulongvec(struct file
*file
,
1044 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
1051 buffer
= kmalloc(BUFSZ
, GFP_KERNEL
);
1055 if (oldval
&& oldlen
) {
1056 unsigned long __user
*vec
= oldval
;
1057 size_t length
= oldlen
/ sizeof(*vec
);
1061 result
= kernel_read(file
, 0, buffer
, BUFSZ
- 1);
1068 for (i
= 0; i
< length
; i
++) {
1069 unsigned long value
;
1071 value
= simple_strtoul(str
, &str
, 10);
1072 while (isspace(*str
))
1076 if (put_user(value
, vec
+ i
))
1079 copied
+= sizeof(*vec
);
1085 if (newval
&& newlen
) {
1086 unsigned long __user
*vec
= newval
;
1087 size_t length
= newlen
/ sizeof(*vec
);
1093 for (i
= 0; i
< length
; i
++) {
1094 unsigned long value
;
1097 if (get_user(value
, vec
+ i
))
1100 str
+= scnprintf(str
, end
- str
, "%lu\t", value
);
1103 result
= kernel_write(file
, buffer
, str
- buffer
, 0);
1114 static ssize_t
bin_uuid(struct file
*file
,
1115 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
1117 ssize_t result
, copied
= 0;
1119 /* Only supports reads */
1120 if (oldval
&& oldlen
) {
1121 char buf
[UUID_STRING_LEN
+ 1];
1124 result
= kernel_read(file
, 0, buf
, sizeof(buf
) - 1);
1131 if (uuid_be_to_bin(buf
, &uuid
))
1138 if (copy_to_user(oldval
, &uuid
, oldlen
))
1148 static ssize_t
bin_dn_node_address(struct file
*file
,
1149 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
1151 ssize_t result
, copied
= 0;
1153 if (oldval
&& oldlen
) {
1154 char buf
[15], *nodep
;
1155 unsigned long area
, node
;
1158 result
= kernel_read(file
, 0, buf
, sizeof(buf
) - 1);
1164 /* Convert the decnet address to binary */
1166 nodep
= strchr(buf
, '.');
1171 area
= simple_strtoul(buf
, NULL
, 10);
1172 node
= simple_strtoul(nodep
, NULL
, 10);
1175 if ((area
> 63)||(node
> 1023))
1178 dnaddr
= cpu_to_le16((area
<< 10) | node
);
1181 if (put_user(dnaddr
, (__le16 __user
*)oldval
))
1184 copied
= sizeof(dnaddr
);
1187 if (newval
&& newlen
) {
1193 if (newlen
!= sizeof(dnaddr
))
1197 if (get_user(dnaddr
, (__le16 __user
*)newval
))
1200 len
= scnprintf(buf
, sizeof(buf
), "%hu.%hu",
1201 le16_to_cpu(dnaddr
) >> 10,
1202 le16_to_cpu(dnaddr
) & 0x3ff);
1204 result
= kernel_write(file
, buf
, len
, 0);
1214 static const struct bin_table
*get_sysctl(const int *name
, int nlen
, char *path
)
1216 const struct bin_table
*table
= &bin_root_table
[0];
1219 /* The binary sysctl tables have a small maximum depth so
1220 * there is no danger of overflowing our path as it PATH_MAX
1223 memcpy(path
, "sys/", 4);
1228 return ERR_PTR(-ENOTDIR
);
1232 for ( ; table
->convert
; table
++) {
1236 * For a wild card entry map from ifindex to network
1239 if (!table
->ctl_name
) {
1241 struct net
*net
= current
->nsproxy
->net_ns
;
1242 struct net_device
*dev
;
1243 dev
= dev_get_by_index(net
, ctl_name
);
1245 len
= strlen(dev
->name
);
1246 memcpy(path
, dev
->name
, len
);
1250 /* Use the well known sysctl number to proc name mapping */
1251 } else if (ctl_name
== table
->ctl_name
) {
1252 len
= strlen(table
->procname
);
1253 memcpy(path
, table
->procname
, len
);
1259 table
= table
->child
;
1266 return ERR_PTR(-ENOTDIR
);
1269 static char *sysctl_getname(const int *name
, int nlen
, const struct bin_table
**tablep
)
1273 result
= ERR_PTR(-ENOMEM
);
1276 const struct bin_table
*table
= get_sysctl(name
, nlen
, tmp
);
1279 if (IS_ERR(table
)) {
1281 result
= ERR_CAST(table
);
1287 static ssize_t
binary_sysctl(const int *name
, int nlen
,
1288 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
1290 const struct bin_table
*table
= NULL
;
1291 struct vfsmount
*mnt
;
1297 pathname
= sysctl_getname(name
, nlen
, &table
);
1298 result
= PTR_ERR(pathname
);
1299 if (IS_ERR(pathname
))
1302 /* How should the sysctl be accessed? */
1303 if (oldval
&& oldlen
&& newval
&& newlen
) {
1305 } else if (newval
&& newlen
) {
1307 } else if (oldval
&& oldlen
) {
1314 mnt
= task_active_pid_ns(current
)->proc_mnt
;
1315 file
= file_open_root(mnt
->mnt_root
, mnt
, pathname
, flags
, 0);
1316 result
= PTR_ERR(file
);
1320 result
= table
->convert(file
, oldval
, oldlen
, newval
, newlen
);
1324 __putname(pathname
);
1330 #else /* CONFIG_SYSCTL_SYSCALL */
1332 static ssize_t
binary_sysctl(const int *name
, int nlen
,
1333 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
1338 #endif /* CONFIG_SYSCTL_SYSCALL */
1341 static void deprecated_sysctl_warning(const int *name
, int nlen
)
1346 * CTL_KERN/KERN_VERSION is used by older glibc and cannot
1349 if (name
[0] == CTL_KERN
&& name
[1] == KERN_VERSION
)
1352 if (printk_ratelimit()) {
1354 "warning: process `%s' used the deprecated sysctl "
1355 "system call with ", current
->comm
);
1356 for (i
= 0; i
< nlen
; i
++)
1357 printk("%d.", name
[i
]);
1363 #define WARN_ONCE_HASH_BITS 8
1364 #define WARN_ONCE_HASH_SIZE (1<<WARN_ONCE_HASH_BITS)
1366 static DECLARE_BITMAP(warn_once_bitmap
, WARN_ONCE_HASH_SIZE
);
1368 #define FNV32_OFFSET 2166136261U
1369 #define FNV32_PRIME 0x01000193
1372 * Print each legacy sysctl (approximately) only once.
1373 * To avoid making the tables non-const use a external
1374 * hash-table instead.
1375 * Worst case hash collision: 6, but very rarely.
1376 * NOTE! We don't use the SMP-safe bit tests. We simply
1377 * don't care enough.
1379 static void warn_on_bintable(const int *name
, int nlen
)
1382 u32 hash
= FNV32_OFFSET
;
1384 for (i
= 0; i
< nlen
; i
++)
1385 hash
= (hash
^ name
[i
]) * FNV32_PRIME
;
1386 hash
%= WARN_ONCE_HASH_SIZE
;
1387 if (__test_and_set_bit(hash
, warn_once_bitmap
))
1389 deprecated_sysctl_warning(name
, nlen
);
1392 static ssize_t
do_sysctl(int __user
*args_name
, int nlen
,
1393 void __user
*oldval
, size_t oldlen
, void __user
*newval
, size_t newlen
)
1395 int name
[CTL_MAXNAME
];
1398 /* Check args->nlen. */
1399 if (nlen
< 0 || nlen
> CTL_MAXNAME
)
1401 /* Read in the sysctl name for simplicity */
1402 for (i
= 0; i
< nlen
; i
++)
1403 if (get_user(name
[i
], args_name
+ i
))
1406 warn_on_bintable(name
, nlen
);
1408 return binary_sysctl(name
, nlen
, oldval
, oldlen
, newval
, newlen
);
1411 SYSCALL_DEFINE1(sysctl
, struct __sysctl_args __user
*, args
)
1413 struct __sysctl_args tmp
;
1417 if (copy_from_user(&tmp
, args
, sizeof(tmp
)))
1420 if (tmp
.oldval
&& !tmp
.oldlenp
)
1423 if (tmp
.oldlenp
&& get_user(oldlen
, tmp
.oldlenp
))
1426 result
= do_sysctl(tmp
.name
, tmp
.nlen
, tmp
.oldval
, oldlen
,
1427 tmp
.newval
, tmp
.newlen
);
1434 if (tmp
.oldlenp
&& put_user(oldlen
, tmp
.oldlenp
))
1441 #ifdef CONFIG_COMPAT
1443 struct compat_sysctl_args
{
1446 compat_uptr_t oldval
;
1447 compat_uptr_t oldlenp
;
1448 compat_uptr_t newval
;
1449 compat_size_t newlen
;
1450 compat_ulong_t __unused
[4];
1453 COMPAT_SYSCALL_DEFINE1(sysctl
, struct compat_sysctl_args __user
*, args
)
1455 struct compat_sysctl_args tmp
;
1456 compat_size_t __user
*compat_oldlenp
;
1460 if (copy_from_user(&tmp
, args
, sizeof(tmp
)))
1463 if (tmp
.oldval
&& !tmp
.oldlenp
)
1466 compat_oldlenp
= compat_ptr(tmp
.oldlenp
);
1467 if (compat_oldlenp
&& get_user(oldlen
, compat_oldlenp
))
1470 result
= do_sysctl(compat_ptr(tmp
.name
), tmp
.nlen
,
1471 compat_ptr(tmp
.oldval
), oldlen
,
1472 compat_ptr(tmp
.newval
), tmp
.newlen
);
1479 if (compat_oldlenp
&& put_user(oldlen
, compat_oldlenp
))
1485 #endif /* CONFIG_COMPAT */