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rapidio/rionet: fix deadlock on SMP
[linux/fpc-iii.git] / kernel / sysctl_binary.c
blobb93763d780d6aa0e7067abf5029b2c30562c1a01
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>
9 #include <linux/fs.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/slab.h>
17 #include <linux/compat.h>
18
19 #ifdef CONFIG_SYSCTL_SYSCALL
20
21 struct bin_table;
22 typedef ssize_t bin_convert_t(struct file *file,
23 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen);
24
25 static bin_convert_t bin_dir;
26 static bin_convert_t bin_string;
27 static bin_convert_t bin_intvec;
28 static bin_convert_t bin_ulongvec;
29 static bin_convert_t bin_uuid;
30 static bin_convert_t bin_dn_node_address;
31
32 #define CTL_DIR bin_dir
33 #define CTL_STR bin_string
34 #define CTL_INT bin_intvec
35 #define CTL_ULONG bin_ulongvec
36 #define CTL_UUID bin_uuid
37 #define CTL_DNADR bin_dn_node_address
38
39 #define BUFSZ 256
40
41 struct bin_table {
42 bin_convert_t *convert;
43 int ctl_name;
44 const char *procname;
45 const struct bin_table *child;
46 };
47
48 static const struct bin_table bin_random_table[] = {
49 { CTL_INT, RANDOM_POOLSIZE, "poolsize" },
50 { CTL_INT, RANDOM_ENTROPY_COUNT, "entropy_avail" },
51 { CTL_INT, RANDOM_READ_THRESH, "read_wakeup_threshold" },
52 { CTL_INT, RANDOM_WRITE_THRESH, "write_wakeup_threshold" },
53 { CTL_UUID, RANDOM_BOOT_ID, "boot_id" },
54 { CTL_UUID, RANDOM_UUID, "uuid" },
55 {}
56 };
57
58 static const struct bin_table bin_pty_table[] = {
59 { CTL_INT, PTY_MAX, "max" },
60 { CTL_INT, PTY_NR, "nr" },
61 {}
62 };
63
64 static const struct bin_table bin_kern_table[] = {
65 { CTL_STR, KERN_OSTYPE, "ostype" },
66 { CTL_STR, KERN_OSRELEASE, "osrelease" },
67 /* KERN_OSREV not used */
68 { CTL_STR, KERN_VERSION, "version" },
69 /* KERN_SECUREMASK not used */
70 /* KERN_PROF not used */
71 { CTL_STR, KERN_NODENAME, "hostname" },
72 { CTL_STR, KERN_DOMAINNAME, "domainname" },
73
74 { CTL_INT, KERN_PANIC, "panic" },
75 { CTL_INT, KERN_REALROOTDEV, "real-root-dev" },
76
77 { CTL_STR, KERN_SPARC_REBOOT, "reboot-cmd" },
78 { CTL_INT, KERN_CTLALTDEL, "ctrl-alt-del" },
79 { CTL_INT, KERN_PRINTK, "printk" },
80
81 /* KERN_NAMETRANS not used */
82 /* KERN_PPC_HTABRECLAIM not used */
83 /* KERN_PPC_ZEROPAGED not used */
84 { CTL_INT, KERN_PPC_POWERSAVE_NAP, "powersave-nap" },
85
86 { CTL_STR, KERN_MODPROBE, "modprobe" },
87 { CTL_INT, KERN_SG_BIG_BUFF, "sg-big-buff" },
88 { CTL_INT, KERN_ACCT, "acct" },
89 /* KERN_PPC_L2CR "l2cr" no longer used */
90
91 /* KERN_RTSIGNR not used */
92 /* KERN_RTSIGMAX not used */
93
94 { CTL_ULONG, KERN_SHMMAX, "shmmax" },
95 { CTL_INT, KERN_MSGMAX, "msgmax" },
96 { CTL_INT, KERN_MSGMNB, "msgmnb" },
97 /* KERN_MSGPOOL not used*/
98 { CTL_INT, KERN_SYSRQ, "sysrq" },
99 { CTL_INT, KERN_MAX_THREADS, "threads-max" },
100 { CTL_DIR, KERN_RANDOM, "random", bin_random_table },
101 { CTL_ULONG, KERN_SHMALL, "shmall" },
102 { CTL_INT, KERN_MSGMNI, "msgmni" },
103 { CTL_INT, KERN_SEM, "sem" },
104 { CTL_INT, KERN_SPARC_STOP_A, "stop-a" },
105 { CTL_INT, KERN_SHMMNI, "shmmni" },
106
107 { CTL_INT, KERN_OVERFLOWUID, "overflowuid" },
108 { CTL_INT, KERN_OVERFLOWGID, "overflowgid" },
109
110 { CTL_STR, KERN_HOTPLUG, "hotplug", },
111 { CTL_INT, KERN_IEEE_EMULATION_WARNINGS, "ieee_emulation_warnings" },
112
113 { CTL_INT, KERN_S390_USER_DEBUG_LOGGING, "userprocess_debug" },
114 { CTL_INT, KERN_CORE_USES_PID, "core_uses_pid" },
115 /* KERN_TAINTED "tainted" no longer used */
116 { CTL_INT, KERN_CADPID, "cad_pid" },
117 { CTL_INT, KERN_PIDMAX, "pid_max" },
118 { CTL_STR, KERN_CORE_PATTERN, "core_pattern" },
119 { CTL_INT, KERN_PANIC_ON_OOPS, "panic_on_oops" },
120 { CTL_INT, KERN_HPPA_PWRSW, "soft-power" },
121 { CTL_INT, KERN_HPPA_UNALIGNED, "unaligned-trap" },
122
123 { CTL_INT, KERN_PRINTK_RATELIMIT, "printk_ratelimit" },
124 { CTL_INT, KERN_PRINTK_RATELIMIT_BURST, "printk_ratelimit_burst" },
125
126 { CTL_DIR, KERN_PTY, "pty", bin_pty_table },
127 { CTL_INT, KERN_NGROUPS_MAX, "ngroups_max" },
128 { CTL_INT, KERN_SPARC_SCONS_PWROFF, "scons-poweroff" },
129 /* KERN_HZ_TIMER "hz_timer" no longer used */
130 { CTL_INT, KERN_UNKNOWN_NMI_PANIC, "unknown_nmi_panic" },
131 { CTL_INT, KERN_BOOTLOADER_TYPE, "bootloader_type" },
132 { CTL_INT, KERN_RANDOMIZE, "randomize_va_space" },
133
134 { CTL_INT, KERN_SPIN_RETRY, "spin_retry" },
135 /* KERN_ACPI_VIDEO_FLAGS "acpi_video_flags" no longer used */
136 { CTL_INT, KERN_IA64_UNALIGNED, "ignore-unaligned-usertrap" },
137 { CTL_INT, KERN_COMPAT_LOG, "compat-log" },
138 { CTL_INT, KERN_MAX_LOCK_DEPTH, "max_lock_depth" },
139 { CTL_INT, KERN_PANIC_ON_NMI, "panic_on_unrecovered_nmi" },
140 {}
141 };
142
143 static const struct bin_table bin_vm_table[] = {
144 { CTL_INT, VM_OVERCOMMIT_MEMORY, "overcommit_memory" },
145 { CTL_INT, VM_PAGE_CLUSTER, "page-cluster" },
146 { CTL_INT, VM_DIRTY_BACKGROUND, "dirty_background_ratio" },
147 { CTL_INT, VM_DIRTY_RATIO, "dirty_ratio" },
148 /* VM_DIRTY_WB_CS "dirty_writeback_centisecs" no longer used */
149 /* VM_DIRTY_EXPIRE_CS "dirty_expire_centisecs" no longer used */
150 /* VM_NR_PDFLUSH_THREADS "nr_pdflush_threads" no longer used */
151 { CTL_INT, VM_OVERCOMMIT_RATIO, "overcommit_ratio" },
152 /* VM_PAGEBUF unused */
153 /* VM_HUGETLB_PAGES "nr_hugepages" no longer used */
154 { CTL_INT, VM_SWAPPINESS, "swappiness" },
155 { CTL_INT, VM_LOWMEM_RESERVE_RATIO, "lowmem_reserve_ratio" },
156 { CTL_INT, VM_MIN_FREE_KBYTES, "min_free_kbytes" },
157 { CTL_INT, VM_MAX_MAP_COUNT, "max_map_count" },
158 { CTL_INT, VM_LAPTOP_MODE, "laptop_mode" },
159 { CTL_INT, VM_BLOCK_DUMP, "block_dump" },
160 { CTL_INT, VM_HUGETLB_GROUP, "hugetlb_shm_group" },
161 { CTL_INT, VM_VFS_CACHE_PRESSURE, "vfs_cache_pressure" },
162 { CTL_INT, VM_LEGACY_VA_LAYOUT, "legacy_va_layout" },
163 /* VM_SWAP_TOKEN_TIMEOUT unused */
164 { CTL_INT, VM_DROP_PAGECACHE, "drop_caches" },
165 { CTL_INT, VM_PERCPU_PAGELIST_FRACTION, "percpu_pagelist_fraction" },
166 { CTL_INT, VM_ZONE_RECLAIM_MODE, "zone_reclaim_mode" },
167 { CTL_INT, VM_MIN_UNMAPPED, "min_unmapped_ratio" },
168 { CTL_INT, VM_PANIC_ON_OOM, "panic_on_oom" },
169 { CTL_INT, VM_VDSO_ENABLED, "vdso_enabled" },
170 { CTL_INT, VM_MIN_SLAB, "min_slab_ratio" },
171
172 {}
173 };
174
175 static const struct bin_table bin_net_core_table[] = {
176 { CTL_INT, NET_CORE_WMEM_MAX, "wmem_max" },
177 { CTL_INT, NET_CORE_RMEM_MAX, "rmem_max" },
178 { CTL_INT, NET_CORE_WMEM_DEFAULT, "wmem_default" },
179 { CTL_INT, NET_CORE_RMEM_DEFAULT, "rmem_default" },
180 /* NET_CORE_DESTROY_DELAY unused */
181 { CTL_INT, NET_CORE_MAX_BACKLOG, "netdev_max_backlog" },
182 /* NET_CORE_FASTROUTE unused */
183 { CTL_INT, NET_CORE_MSG_COST, "message_cost" },
184 { CTL_INT, NET_CORE_MSG_BURST, "message_burst" },
185 { CTL_INT, NET_CORE_OPTMEM_MAX, "optmem_max" },
186 /* NET_CORE_HOT_LIST_LENGTH unused */
187 /* NET_CORE_DIVERT_VERSION unused */
188 /* NET_CORE_NO_CONG_THRESH unused */
189 /* NET_CORE_NO_CONG unused */
190 /* NET_CORE_LO_CONG unused */
191 /* NET_CORE_MOD_CONG unused */
192 { CTL_INT, NET_CORE_DEV_WEIGHT, "dev_weight" },
193 { CTL_INT, NET_CORE_SOMAXCONN, "somaxconn" },
194 { CTL_INT, NET_CORE_BUDGET, "netdev_budget" },
195 { CTL_INT, NET_CORE_AEVENT_ETIME, "xfrm_aevent_etime" },
196 { CTL_INT, NET_CORE_AEVENT_RSEQTH, "xfrm_aevent_rseqth" },
197 { CTL_INT, NET_CORE_WARNINGS, "warnings" },
198 {},
199 };
200
201 static const struct bin_table bin_net_unix_table[] = {
202 /* NET_UNIX_DESTROY_DELAY unused */
203 /* NET_UNIX_DELETE_DELAY unused */
204 { CTL_INT, NET_UNIX_MAX_DGRAM_QLEN, "max_dgram_qlen" },
205 {}
206 };
207
208 static const struct bin_table bin_net_ipv4_route_table[] = {
209 { CTL_INT, NET_IPV4_ROUTE_FLUSH, "flush" },
210 /* NET_IPV4_ROUTE_MIN_DELAY "min_delay" no longer used */
211 /* NET_IPV4_ROUTE_MAX_DELAY "max_delay" no longer used */
212 { CTL_INT, NET_IPV4_ROUTE_GC_THRESH, "gc_thresh" },
213 { CTL_INT, NET_IPV4_ROUTE_MAX_SIZE, "max_size" },
214 { CTL_INT, NET_IPV4_ROUTE_GC_MIN_INTERVAL, "gc_min_interval" },
215 { CTL_INT, NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS, "gc_min_interval_ms" },
216 { CTL_INT, NET_IPV4_ROUTE_GC_TIMEOUT, "gc_timeout" },
217 /* NET_IPV4_ROUTE_GC_INTERVAL "gc_interval" no longer used */
218 { CTL_INT, NET_IPV4_ROUTE_REDIRECT_LOAD, "redirect_load" },
219 { CTL_INT, NET_IPV4_ROUTE_REDIRECT_NUMBER, "redirect_number" },
220 { CTL_INT, NET_IPV4_ROUTE_REDIRECT_SILENCE, "redirect_silence" },
221 { CTL_INT, NET_IPV4_ROUTE_ERROR_COST, "error_cost" },
222 { CTL_INT, NET_IPV4_ROUTE_ERROR_BURST, "error_burst" },
223 { CTL_INT, NET_IPV4_ROUTE_GC_ELASTICITY, "gc_elasticity" },
224 { CTL_INT, NET_IPV4_ROUTE_MTU_EXPIRES, "mtu_expires" },
225 { CTL_INT, NET_IPV4_ROUTE_MIN_PMTU, "min_pmtu" },
226 { CTL_INT, NET_IPV4_ROUTE_MIN_ADVMSS, "min_adv_mss" },
227 {}
228 };
229
230 static const struct bin_table bin_net_ipv4_conf_vars_table[] = {
231 { CTL_INT, NET_IPV4_CONF_FORWARDING, "forwarding" },
232 { CTL_INT, NET_IPV4_CONF_MC_FORWARDING, "mc_forwarding" },
233
234 { CTL_INT, NET_IPV4_CONF_ACCEPT_REDIRECTS, "accept_redirects" },
235 { CTL_INT, NET_IPV4_CONF_SECURE_REDIRECTS, "secure_redirects" },
236 { CTL_INT, NET_IPV4_CONF_SEND_REDIRECTS, "send_redirects" },
237 { CTL_INT, NET_IPV4_CONF_SHARED_MEDIA, "shared_media" },
238 { CTL_INT, NET_IPV4_CONF_RP_FILTER, "rp_filter" },
239 { CTL_INT, NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE, "accept_source_route" },
240 { CTL_INT, NET_IPV4_CONF_PROXY_ARP, "proxy_arp" },
241 { CTL_INT, NET_IPV4_CONF_MEDIUM_ID, "medium_id" },
242 { CTL_INT, NET_IPV4_CONF_BOOTP_RELAY, "bootp_relay" },
243 { CTL_INT, NET_IPV4_CONF_LOG_MARTIANS, "log_martians" },
244 { CTL_INT, NET_IPV4_CONF_TAG, "tag" },
245 { CTL_INT, NET_IPV4_CONF_ARPFILTER, "arp_filter" },
246 { CTL_INT, NET_IPV4_CONF_ARP_ANNOUNCE, "arp_announce" },
247 { CTL_INT, NET_IPV4_CONF_ARP_IGNORE, "arp_ignore" },
248 { CTL_INT, NET_IPV4_CONF_ARP_ACCEPT, "arp_accept" },
249 { CTL_INT, NET_IPV4_CONF_ARP_NOTIFY, "arp_notify" },
250
251 { CTL_INT, NET_IPV4_CONF_NOXFRM, "disable_xfrm" },
252 { CTL_INT, NET_IPV4_CONF_NOPOLICY, "disable_policy" },
253 { CTL_INT, NET_IPV4_CONF_FORCE_IGMP_VERSION, "force_igmp_version" },
254 { CTL_INT, NET_IPV4_CONF_PROMOTE_SECONDARIES, "promote_secondaries" },
255 {}
256 };
257
258 static const struct bin_table bin_net_ipv4_conf_table[] = {
259 { CTL_DIR, NET_PROTO_CONF_ALL, "all", bin_net_ipv4_conf_vars_table },
260 { CTL_DIR, NET_PROTO_CONF_DEFAULT, "default", bin_net_ipv4_conf_vars_table },
261 { CTL_DIR, 0, NULL, bin_net_ipv4_conf_vars_table },
262 {}
263 };
264
265 static const struct bin_table bin_net_neigh_vars_table[] = {
266 { CTL_INT, NET_NEIGH_MCAST_SOLICIT, "mcast_solicit" },
267 { CTL_INT, NET_NEIGH_UCAST_SOLICIT, "ucast_solicit" },
268 { CTL_INT, NET_NEIGH_APP_SOLICIT, "app_solicit" },
269 /* NET_NEIGH_RETRANS_TIME "retrans_time" no longer used */
270 { CTL_INT, NET_NEIGH_REACHABLE_TIME, "base_reachable_time" },
271 { CTL_INT, NET_NEIGH_DELAY_PROBE_TIME, "delay_first_probe_time" },
272 { CTL_INT, NET_NEIGH_GC_STALE_TIME, "gc_stale_time" },
273 { CTL_INT, NET_NEIGH_UNRES_QLEN, "unres_qlen" },
274 { CTL_INT, NET_NEIGH_PROXY_QLEN, "proxy_qlen" },
275 /* NET_NEIGH_ANYCAST_DELAY "anycast_delay" no longer used */
276 /* NET_NEIGH_PROXY_DELAY "proxy_delay" no longer used */
277 /* NET_NEIGH_LOCKTIME "locktime" no longer used */
278 { CTL_INT, NET_NEIGH_GC_INTERVAL, "gc_interval" },
279 { CTL_INT, NET_NEIGH_GC_THRESH1, "gc_thresh1" },
280 { CTL_INT, NET_NEIGH_GC_THRESH2, "gc_thresh2" },
281 { CTL_INT, NET_NEIGH_GC_THRESH3, "gc_thresh3" },
282 { CTL_INT, NET_NEIGH_RETRANS_TIME_MS, "retrans_time_ms" },
283 { CTL_INT, NET_NEIGH_REACHABLE_TIME_MS, "base_reachable_time_ms" },
284 {}
285 };
286
287 static const struct bin_table bin_net_neigh_table[] = {
288 { CTL_DIR, NET_PROTO_CONF_DEFAULT, "default", bin_net_neigh_vars_table },
289 { CTL_DIR, 0, NULL, bin_net_neigh_vars_table },
290 {}
291 };
292
293 static const struct bin_table bin_net_ipv4_netfilter_table[] = {
294 { CTL_INT, NET_IPV4_NF_CONNTRACK_MAX, "ip_conntrack_max" },
295
296 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT "ip_conntrack_tcp_timeout_syn_sent" no longer used */
297 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV "ip_conntrack_tcp_timeout_syn_recv" no longer used */
298 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED "ip_conntrack_tcp_timeout_established" no longer used */
299 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT "ip_conntrack_tcp_timeout_fin_wait" no longer used */
300 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT "ip_conntrack_tcp_timeout_close_wait" no longer used */
301 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK "ip_conntrack_tcp_timeout_last_ack" no longer used */
302 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT "ip_conntrack_tcp_timeout_time_wait" no longer used */
303 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE "ip_conntrack_tcp_timeout_close" no longer used */
304
305 /* NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT "ip_conntrack_udp_timeout" no longer used */
306 /* NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM "ip_conntrack_udp_timeout_stream" no longer used */
307 /* NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT "ip_conntrack_icmp_timeout" no longer used */
308 /* NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT "ip_conntrack_generic_timeout" no longer used */
309
310 { CTL_INT, NET_IPV4_NF_CONNTRACK_BUCKETS, "ip_conntrack_buckets" },
311 { CTL_INT, NET_IPV4_NF_CONNTRACK_LOG_INVALID, "ip_conntrack_log_invalid" },
312 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS "ip_conntrack_tcp_timeout_max_retrans" no longer used */
313 { CTL_INT, NET_IPV4_NF_CONNTRACK_TCP_LOOSE, "ip_conntrack_tcp_loose" },
314 { CTL_INT, NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL, "ip_conntrack_tcp_be_liberal" },
315 { CTL_INT, NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS, "ip_conntrack_tcp_max_retrans" },
316
317 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED "ip_conntrack_sctp_timeout_closed" no longer used */
318 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT "ip_conntrack_sctp_timeout_cookie_wait" no longer used */
319 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED "ip_conntrack_sctp_timeout_cookie_echoed" no longer used */
320 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED "ip_conntrack_sctp_timeout_established" no longer used */
321 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT "ip_conntrack_sctp_timeout_shutdown_sent" no longer used */
322 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD "ip_conntrack_sctp_timeout_shutdown_recd" no longer used */
323 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT "ip_conntrack_sctp_timeout_shutdown_ack_sent" no longer used */
324
325 { CTL_INT, NET_IPV4_NF_CONNTRACK_COUNT, "ip_conntrack_count" },
326 { CTL_INT, NET_IPV4_NF_CONNTRACK_CHECKSUM, "ip_conntrack_checksum" },
327 {}
328 };
329
330 static const struct bin_table bin_net_ipv4_table[] = {
331 {CTL_INT, NET_IPV4_FORWARD, "ip_forward" },
332
333 { CTL_DIR, NET_IPV4_CONF, "conf", bin_net_ipv4_conf_table },
334 { CTL_DIR, NET_IPV4_NEIGH, "neigh", bin_net_neigh_table },
335 { CTL_DIR, NET_IPV4_ROUTE, "route", bin_net_ipv4_route_table },
336 /* NET_IPV4_FIB_HASH unused */
337 { CTL_DIR, NET_IPV4_NETFILTER, "netfilter", bin_net_ipv4_netfilter_table },
338
339 { CTL_INT, NET_IPV4_TCP_TIMESTAMPS, "tcp_timestamps" },
340 { CTL_INT, NET_IPV4_TCP_WINDOW_SCALING, "tcp_window_scaling" },
341 { CTL_INT, NET_IPV4_TCP_SACK, "tcp_sack" },
342 { CTL_INT, NET_IPV4_TCP_RETRANS_COLLAPSE, "tcp_retrans_collapse" },
343 { CTL_INT, NET_IPV4_DEFAULT_TTL, "ip_default_ttl" },
344 /* NET_IPV4_AUTOCONFIG unused */
345 { CTL_INT, NET_IPV4_NO_PMTU_DISC, "ip_no_pmtu_disc" },
346 { CTL_INT, NET_IPV4_NONLOCAL_BIND, "ip_nonlocal_bind" },
347 { CTL_INT, NET_IPV4_TCP_SYN_RETRIES, "tcp_syn_retries" },
348 { CTL_INT, NET_TCP_SYNACK_RETRIES, "tcp_synack_retries" },
349 { CTL_INT, NET_TCP_MAX_ORPHANS, "tcp_max_orphans" },
350 { CTL_INT, NET_TCP_MAX_TW_BUCKETS, "tcp_max_tw_buckets" },
351 { CTL_INT, NET_IPV4_DYNADDR, "ip_dynaddr" },
352 { CTL_INT, NET_IPV4_TCP_KEEPALIVE_TIME, "tcp_keepalive_time" },
353 { CTL_INT, NET_IPV4_TCP_KEEPALIVE_PROBES, "tcp_keepalive_probes" },
354 { CTL_INT, NET_IPV4_TCP_KEEPALIVE_INTVL, "tcp_keepalive_intvl" },
355 { CTL_INT, NET_IPV4_TCP_RETRIES1, "tcp_retries1" },
356 { CTL_INT, NET_IPV4_TCP_RETRIES2, "tcp_retries2" },
357 { CTL_INT, NET_IPV4_TCP_FIN_TIMEOUT, "tcp_fin_timeout" },
358 { CTL_INT, NET_TCP_SYNCOOKIES, "tcp_syncookies" },
359 { CTL_INT, NET_TCP_TW_RECYCLE, "tcp_tw_recycle" },
360 { CTL_INT, NET_TCP_ABORT_ON_OVERFLOW, "tcp_abort_on_overflow" },
361 { CTL_INT, NET_TCP_STDURG, "tcp_stdurg" },
362 { CTL_INT, NET_TCP_RFC1337, "tcp_rfc1337" },
363 { CTL_INT, NET_TCP_MAX_SYN_BACKLOG, "tcp_max_syn_backlog" },
364 { CTL_INT, NET_IPV4_LOCAL_PORT_RANGE, "ip_local_port_range" },
365 { CTL_INT, NET_IPV4_IGMP_MAX_MEMBERSHIPS, "igmp_max_memberships" },
366 { CTL_INT, NET_IPV4_IGMP_MAX_MSF, "igmp_max_msf" },
367 { CTL_INT, NET_IPV4_INET_PEER_THRESHOLD, "inet_peer_threshold" },
368 { CTL_INT, NET_IPV4_INET_PEER_MINTTL, "inet_peer_minttl" },
369 { CTL_INT, NET_IPV4_INET_PEER_MAXTTL, "inet_peer_maxttl" },
370 { CTL_INT, NET_IPV4_INET_PEER_GC_MINTIME, "inet_peer_gc_mintime" },
371 { CTL_INT, NET_IPV4_INET_PEER_GC_MAXTIME, "inet_peer_gc_maxtime" },
372 { CTL_INT, NET_TCP_ORPHAN_RETRIES, "tcp_orphan_retries" },
373 { CTL_INT, NET_TCP_FACK, "tcp_fack" },
374 { CTL_INT, NET_TCP_REORDERING, "tcp_reordering" },
375 { CTL_INT, NET_TCP_ECN, "tcp_ecn" },
376 { CTL_INT, NET_TCP_DSACK, "tcp_dsack" },
377 { CTL_INT, NET_TCP_MEM, "tcp_mem" },
378 { CTL_INT, NET_TCP_WMEM, "tcp_wmem" },
379 { CTL_INT, NET_TCP_RMEM, "tcp_rmem" },
380 { CTL_INT, NET_TCP_APP_WIN, "tcp_app_win" },
381 { CTL_INT, NET_TCP_ADV_WIN_SCALE, "tcp_adv_win_scale" },
382 { CTL_INT, NET_TCP_TW_REUSE, "tcp_tw_reuse" },
383 { CTL_INT, NET_TCP_FRTO, "tcp_frto" },
384 { CTL_INT, NET_TCP_FRTO_RESPONSE, "tcp_frto_response" },
385 { CTL_INT, NET_TCP_LOW_LATENCY, "tcp_low_latency" },
386 { CTL_INT, NET_TCP_NO_METRICS_SAVE, "tcp_no_metrics_save" },
387 { CTL_INT, NET_TCP_MODERATE_RCVBUF, "tcp_moderate_rcvbuf" },
388 { CTL_INT, NET_TCP_TSO_WIN_DIVISOR, "tcp_tso_win_divisor" },
389 { CTL_STR, NET_TCP_CONG_CONTROL, "tcp_congestion_control" },
390 { CTL_INT, NET_TCP_MTU_PROBING, "tcp_mtu_probing" },
391 { CTL_INT, NET_TCP_BASE_MSS, "tcp_base_mss" },
392 { CTL_INT, NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS, "tcp_workaround_signed_windows" },
393 { CTL_INT, NET_TCP_DMA_COPYBREAK, "tcp_dma_copybreak" },
394 { CTL_INT, NET_TCP_SLOW_START_AFTER_IDLE, "tcp_slow_start_after_idle" },
395 { CTL_INT, NET_CIPSOV4_CACHE_ENABLE, "cipso_cache_enable" },
396 { CTL_INT, NET_CIPSOV4_CACHE_BUCKET_SIZE, "cipso_cache_bucket_size" },
397 { CTL_INT, NET_CIPSOV4_RBM_OPTFMT, "cipso_rbm_optfmt" },
398 { CTL_INT, NET_CIPSOV4_RBM_STRICTVALID, "cipso_rbm_strictvalid" },
399 /* NET_TCP_AVAIL_CONG_CONTROL "tcp_available_congestion_control" no longer used */
400 { CTL_STR, NET_TCP_ALLOWED_CONG_CONTROL, "tcp_allowed_congestion_control" },
401 { CTL_INT, NET_TCP_MAX_SSTHRESH, "tcp_max_ssthresh" },
402
403 { CTL_INT, NET_IPV4_ICMP_ECHO_IGNORE_ALL, "icmp_echo_ignore_all" },
404 { CTL_INT, NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS, "icmp_echo_ignore_broadcasts" },
405 { CTL_INT, NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES, "icmp_ignore_bogus_error_responses" },
406 { CTL_INT, NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR, "icmp_errors_use_inbound_ifaddr" },
407 { CTL_INT, NET_IPV4_ICMP_RATELIMIT, "icmp_ratelimit" },
408 { CTL_INT, NET_IPV4_ICMP_RATEMASK, "icmp_ratemask" },
409
410 { CTL_INT, NET_IPV4_IPFRAG_HIGH_THRESH, "ipfrag_high_thresh" },
411 { CTL_INT, NET_IPV4_IPFRAG_LOW_THRESH, "ipfrag_low_thresh" },
412 { CTL_INT, NET_IPV4_IPFRAG_TIME, "ipfrag_time" },
413
414 { CTL_INT, NET_IPV4_IPFRAG_SECRET_INTERVAL, "ipfrag_secret_interval" },
415 /* NET_IPV4_IPFRAG_MAX_DIST "ipfrag_max_dist" no longer used */
416
417 { CTL_INT, 2088 /* NET_IPQ_QMAX */, "ip_queue_maxlen" },
418
419 /* NET_TCP_DEFAULT_WIN_SCALE unused */
420 /* NET_TCP_BIC_BETA unused */
421 /* NET_IPV4_TCP_MAX_KA_PROBES unused */
422 /* NET_IPV4_IP_MASQ_DEBUG unused */
423 /* NET_TCP_SYN_TAILDROP unused */
424 /* NET_IPV4_ICMP_SOURCEQUENCH_RATE unused */
425 /* NET_IPV4_ICMP_DESTUNREACH_RATE unused */
426 /* NET_IPV4_ICMP_TIMEEXCEED_RATE unused */
427 /* NET_IPV4_ICMP_PARAMPROB_RATE unused */
428 /* NET_IPV4_ICMP_ECHOREPLY_RATE unused */
429 /* NET_IPV4_ALWAYS_DEFRAG unused */
430 {}
431 };
432
433 static const struct bin_table bin_net_ipx_table[] = {
434 { CTL_INT, NET_IPX_PPROP_BROADCASTING, "ipx_pprop_broadcasting" },
435 /* NET_IPX_FORWARDING unused */
436 {}
437 };
438
439 static const struct bin_table bin_net_atalk_table[] = {
440 { CTL_INT, NET_ATALK_AARP_EXPIRY_TIME, "aarp-expiry-time" },
441 { CTL_INT, NET_ATALK_AARP_TICK_TIME, "aarp-tick-time" },
442 { CTL_INT, NET_ATALK_AARP_RETRANSMIT_LIMIT, "aarp-retransmit-limit" },
443 { CTL_INT, NET_ATALK_AARP_RESOLVE_TIME, "aarp-resolve-time" },
444 {},
445 };
446
447 static const struct bin_table bin_net_netrom_table[] = {
448 { CTL_INT, NET_NETROM_DEFAULT_PATH_QUALITY, "default_path_quality" },
449 { CTL_INT, NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER, "obsolescence_count_initialiser" },
450 { CTL_INT, NET_NETROM_NETWORK_TTL_INITIALISER, "network_ttl_initialiser" },
451 { CTL_INT, NET_NETROM_TRANSPORT_TIMEOUT, "transport_timeout" },
452 { CTL_INT, NET_NETROM_TRANSPORT_MAXIMUM_TRIES, "transport_maximum_tries" },
453 { CTL_INT, NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY, "transport_acknowledge_delay" },
454 { CTL_INT, NET_NETROM_TRANSPORT_BUSY_DELAY, "transport_busy_delay" },
455 { CTL_INT, NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE, "transport_requested_window_size" },
456 { CTL_INT, NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT, "transport_no_activity_timeout" },
457 { CTL_INT, NET_NETROM_ROUTING_CONTROL, "routing_control" },
458 { CTL_INT, NET_NETROM_LINK_FAILS_COUNT, "link_fails_count" },
459 { CTL_INT, NET_NETROM_RESET, "reset" },
460 {}
461 };
462
463 static const struct bin_table bin_net_ax25_param_table[] = {
464 { CTL_INT, NET_AX25_IP_DEFAULT_MODE, "ip_default_mode" },
465 { CTL_INT, NET_AX25_DEFAULT_MODE, "ax25_default_mode" },
466 { CTL_INT, NET_AX25_BACKOFF_TYPE, "backoff_type" },
467 { CTL_INT, NET_AX25_CONNECT_MODE, "connect_mode" },
468 { CTL_INT, NET_AX25_STANDARD_WINDOW, "standard_window_size" },
469 { CTL_INT, NET_AX25_EXTENDED_WINDOW, "extended_window_size" },
470 { CTL_INT, NET_AX25_T1_TIMEOUT, "t1_timeout" },
471 { CTL_INT, NET_AX25_T2_TIMEOUT, "t2_timeout" },
472 { CTL_INT, NET_AX25_T3_TIMEOUT, "t3_timeout" },
473 { CTL_INT, NET_AX25_IDLE_TIMEOUT, "idle_timeout" },
474 { CTL_INT, NET_AX25_N2, "maximum_retry_count" },
475 { CTL_INT, NET_AX25_PACLEN, "maximum_packet_length" },
476 { CTL_INT, NET_AX25_PROTOCOL, "protocol" },
477 { CTL_INT, NET_AX25_DAMA_SLAVE_TIMEOUT, "dama_slave_timeout" },
478 {}
479 };
480
481 static const struct bin_table bin_net_ax25_table[] = {
482 { CTL_DIR, 0, NULL, bin_net_ax25_param_table },
483 {}
484 };
485
486 static const struct bin_table bin_net_rose_table[] = {
487 { CTL_INT, NET_ROSE_RESTART_REQUEST_TIMEOUT, "restart_request_timeout" },
488 { CTL_INT, NET_ROSE_CALL_REQUEST_TIMEOUT, "call_request_timeout" },
489 { CTL_INT, NET_ROSE_RESET_REQUEST_TIMEOUT, "reset_request_timeout" },
490 { CTL_INT, NET_ROSE_CLEAR_REQUEST_TIMEOUT, "clear_request_timeout" },
491 { CTL_INT, NET_ROSE_ACK_HOLD_BACK_TIMEOUT, "acknowledge_hold_back_timeout" },
492 { CTL_INT, NET_ROSE_ROUTING_CONTROL, "routing_control" },
493 { CTL_INT, NET_ROSE_LINK_FAIL_TIMEOUT, "link_fail_timeout" },
494 { CTL_INT, NET_ROSE_MAX_VCS, "maximum_virtual_circuits" },
495 { CTL_INT, NET_ROSE_WINDOW_SIZE, "window_size" },
496 { CTL_INT, NET_ROSE_NO_ACTIVITY_TIMEOUT, "no_activity_timeout" },
497 {}
498 };
499
500 static const struct bin_table bin_net_ipv6_conf_var_table[] = {
501 { CTL_INT, NET_IPV6_FORWARDING, "forwarding" },
502 { CTL_INT, NET_IPV6_HOP_LIMIT, "hop_limit" },
503 { CTL_INT, NET_IPV6_MTU, "mtu" },
504 { CTL_INT, NET_IPV6_ACCEPT_RA, "accept_ra" },
505 { CTL_INT, NET_IPV6_ACCEPT_REDIRECTS, "accept_redirects" },
506 { CTL_INT, NET_IPV6_AUTOCONF, "autoconf" },
507 { CTL_INT, NET_IPV6_DAD_TRANSMITS, "dad_transmits" },
508 { CTL_INT, NET_IPV6_RTR_SOLICITS, "router_solicitations" },
509 { CTL_INT, NET_IPV6_RTR_SOLICIT_INTERVAL, "router_solicitation_interval" },
510 { CTL_INT, NET_IPV6_RTR_SOLICIT_DELAY, "router_solicitation_delay" },
511 { CTL_INT, NET_IPV6_USE_TEMPADDR, "use_tempaddr" },
512 { CTL_INT, NET_IPV6_TEMP_VALID_LFT, "temp_valid_lft" },
513 { CTL_INT, NET_IPV6_TEMP_PREFERED_LFT, "temp_prefered_lft" },
514 { CTL_INT, NET_IPV6_REGEN_MAX_RETRY, "regen_max_retry" },
515 { CTL_INT, NET_IPV6_MAX_DESYNC_FACTOR, "max_desync_factor" },
516 { CTL_INT, NET_IPV6_MAX_ADDRESSES, "max_addresses" },
517 { CTL_INT, NET_IPV6_FORCE_MLD_VERSION, "force_mld_version" },
518 { CTL_INT, NET_IPV6_ACCEPT_RA_DEFRTR, "accept_ra_defrtr" },
519 { CTL_INT, NET_IPV6_ACCEPT_RA_PINFO, "accept_ra_pinfo" },
520 { CTL_INT, NET_IPV6_ACCEPT_RA_RTR_PREF, "accept_ra_rtr_pref" },
521 { CTL_INT, NET_IPV6_RTR_PROBE_INTERVAL, "router_probe_interval" },
522 { CTL_INT, NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN, "accept_ra_rt_info_max_plen" },
523 { CTL_INT, NET_IPV6_PROXY_NDP, "proxy_ndp" },
524 { CTL_INT, NET_IPV6_ACCEPT_SOURCE_ROUTE, "accept_source_route" },
525 {}
526 };
527
528 static const struct bin_table bin_net_ipv6_conf_table[] = {
529 { CTL_DIR, NET_PROTO_CONF_ALL, "all", bin_net_ipv6_conf_var_table },
530 { CTL_DIR, NET_PROTO_CONF_DEFAULT, "default", bin_net_ipv6_conf_var_table },
531 { CTL_DIR, 0, NULL, bin_net_ipv6_conf_var_table },
532 {}
533 };
534
535 static const struct bin_table bin_net_ipv6_route_table[] = {
536 /* NET_IPV6_ROUTE_FLUSH "flush" no longer used */
537 { CTL_INT, NET_IPV6_ROUTE_GC_THRESH, "gc_thresh" },
538 { CTL_INT, NET_IPV6_ROUTE_MAX_SIZE, "max_size" },
539 { CTL_INT, NET_IPV6_ROUTE_GC_MIN_INTERVAL, "gc_min_interval" },
540 { CTL_INT, NET_IPV6_ROUTE_GC_TIMEOUT, "gc_timeout" },
541 { CTL_INT, NET_IPV6_ROUTE_GC_INTERVAL, "gc_interval" },
542 { CTL_INT, NET_IPV6_ROUTE_GC_ELASTICITY, "gc_elasticity" },
543 { CTL_INT, NET_IPV6_ROUTE_MTU_EXPIRES, "mtu_expires" },
544 { CTL_INT, NET_IPV6_ROUTE_MIN_ADVMSS, "min_adv_mss" },
545 { CTL_INT, NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS, "gc_min_interval_ms" },
546 {}
547 };
548
549 static const struct bin_table bin_net_ipv6_icmp_table[] = {
550 { CTL_INT, NET_IPV6_ICMP_RATELIMIT, "ratelimit" },
551 {}
552 };
553
554 static const struct bin_table bin_net_ipv6_table[] = {
555 { CTL_DIR, NET_IPV6_CONF, "conf", bin_net_ipv6_conf_table },
556 { CTL_DIR, NET_IPV6_NEIGH, "neigh", bin_net_neigh_table },
557 { CTL_DIR, NET_IPV6_ROUTE, "route", bin_net_ipv6_route_table },
558 { CTL_DIR, NET_IPV6_ICMP, "icmp", bin_net_ipv6_icmp_table },
559 { CTL_INT, NET_IPV6_BINDV6ONLY, "bindv6only" },
560 { CTL_INT, NET_IPV6_IP6FRAG_HIGH_THRESH, "ip6frag_high_thresh" },
561 { CTL_INT, NET_IPV6_IP6FRAG_LOW_THRESH, "ip6frag_low_thresh" },
562 { CTL_INT, NET_IPV6_IP6FRAG_TIME, "ip6frag_time" },
563 { CTL_INT, NET_IPV6_IP6FRAG_SECRET_INTERVAL, "ip6frag_secret_interval" },
564 { CTL_INT, NET_IPV6_MLD_MAX_MSF, "mld_max_msf" },
565 { CTL_INT, 2088 /* IPQ_QMAX */, "ip6_queue_maxlen" },
566 {}
567 };
568
569 static const struct bin_table bin_net_x25_table[] = {
570 { CTL_INT, NET_X25_RESTART_REQUEST_TIMEOUT, "restart_request_timeout" },
571 { CTL_INT, NET_X25_CALL_REQUEST_TIMEOUT, "call_request_timeout" },
572 { CTL_INT, NET_X25_RESET_REQUEST_TIMEOUT, "reset_request_timeout" },
573 { CTL_INT, NET_X25_CLEAR_REQUEST_TIMEOUT, "clear_request_timeout" },
574 { CTL_INT, NET_X25_ACK_HOLD_BACK_TIMEOUT, "acknowledgement_hold_back_timeout" },
575 { CTL_INT, NET_X25_FORWARD, "x25_forward" },
576 {}
577 };
578
579 static const struct bin_table bin_net_tr_table[] = {
580 { CTL_INT, NET_TR_RIF_TIMEOUT, "rif_timeout" },
581 {}
582 };
583
584
585 static const struct bin_table bin_net_decnet_conf_vars[] = {
586 { CTL_INT, NET_DECNET_CONF_DEV_FORWARDING, "forwarding" },
587 { CTL_INT, NET_DECNET_CONF_DEV_PRIORITY, "priority" },
588 { CTL_INT, NET_DECNET_CONF_DEV_T2, "t2" },
589 { CTL_INT, NET_DECNET_CONF_DEV_T3, "t3" },
590 {}
591 };
592
593 static const struct bin_table bin_net_decnet_conf[] = {
594 { CTL_DIR, NET_DECNET_CONF_ETHER, "ethernet", bin_net_decnet_conf_vars },
595 { CTL_DIR, NET_DECNET_CONF_GRE, "ipgre", bin_net_decnet_conf_vars },
596 { CTL_DIR, NET_DECNET_CONF_X25, "x25", bin_net_decnet_conf_vars },
597 { CTL_DIR, NET_DECNET_CONF_PPP, "ppp", bin_net_decnet_conf_vars },
598 { CTL_DIR, NET_DECNET_CONF_DDCMP, "ddcmp", bin_net_decnet_conf_vars },
599 { CTL_DIR, NET_DECNET_CONF_LOOPBACK, "loopback", bin_net_decnet_conf_vars },
600 { CTL_DIR, 0, NULL, bin_net_decnet_conf_vars },
601 {}
602 };
603
604 static const struct bin_table bin_net_decnet_table[] = {
605 { CTL_DIR, NET_DECNET_CONF, "conf", bin_net_decnet_conf },
606 { CTL_DNADR, NET_DECNET_NODE_ADDRESS, "node_address" },
607 { CTL_STR, NET_DECNET_NODE_NAME, "node_name" },
608 { CTL_STR, NET_DECNET_DEFAULT_DEVICE, "default_device" },
609 { CTL_INT, NET_DECNET_TIME_WAIT, "time_wait" },
610 { CTL_INT, NET_DECNET_DN_COUNT, "dn_count" },
611 { CTL_INT, NET_DECNET_DI_COUNT, "di_count" },
612 { CTL_INT, NET_DECNET_DR_COUNT, "dr_count" },
613 { CTL_INT, NET_DECNET_DST_GC_INTERVAL, "dst_gc_interval" },
614 { CTL_INT, NET_DECNET_NO_FC_MAX_CWND, "no_fc_max_cwnd" },
615 { CTL_INT, NET_DECNET_MEM, "decnet_mem" },
616 { CTL_INT, NET_DECNET_RMEM, "decnet_rmem" },
617 { CTL_INT, NET_DECNET_WMEM, "decnet_wmem" },
618 { CTL_INT, NET_DECNET_DEBUG_LEVEL, "debug" },
619 {}
620 };
621
622 static const struct bin_table bin_net_sctp_table[] = {
623 { CTL_INT, NET_SCTP_RTO_INITIAL, "rto_initial" },
624 { CTL_INT, NET_SCTP_RTO_MIN, "rto_min" },
625 { CTL_INT, NET_SCTP_RTO_MAX, "rto_max" },
626 { CTL_INT, NET_SCTP_RTO_ALPHA, "rto_alpha_exp_divisor" },
627 { CTL_INT, NET_SCTP_RTO_BETA, "rto_beta_exp_divisor" },
628 { CTL_INT, NET_SCTP_VALID_COOKIE_LIFE, "valid_cookie_life" },
629 { CTL_INT, NET_SCTP_ASSOCIATION_MAX_RETRANS, "association_max_retrans" },
630 { CTL_INT, NET_SCTP_PATH_MAX_RETRANS, "path_max_retrans" },
631 { CTL_INT, NET_SCTP_MAX_INIT_RETRANSMITS, "max_init_retransmits" },
632 { CTL_INT, NET_SCTP_HB_INTERVAL, "hb_interval" },
633 { CTL_INT, NET_SCTP_PRESERVE_ENABLE, "cookie_preserve_enable" },
634 { CTL_INT, NET_SCTP_MAX_BURST, "max_burst" },
635 { CTL_INT, NET_SCTP_ADDIP_ENABLE, "addip_enable" },
636 { CTL_INT, NET_SCTP_PRSCTP_ENABLE, "prsctp_enable" },
637 { CTL_INT, NET_SCTP_SNDBUF_POLICY, "sndbuf_policy" },
638 { CTL_INT, NET_SCTP_SACK_TIMEOUT, "sack_timeout" },
639 { CTL_INT, NET_SCTP_RCVBUF_POLICY, "rcvbuf_policy" },
640 {}
641 };
642
643 static const struct bin_table bin_net_llc_llc2_timeout_table[] = {
644 { CTL_INT, NET_LLC2_ACK_TIMEOUT, "ack" },
645 { CTL_INT, NET_LLC2_P_TIMEOUT, "p" },
646 { CTL_INT, NET_LLC2_REJ_TIMEOUT, "rej" },
647 { CTL_INT, NET_LLC2_BUSY_TIMEOUT, "busy" },
648 {}
649 };
650
651 static const struct bin_table bin_net_llc_station_table[] = {
652 { CTL_INT, NET_LLC_STATION_ACK_TIMEOUT, "ack_timeout" },
653 {}
654 };
655
656 static const struct bin_table bin_net_llc_llc2_table[] = {
657 { CTL_DIR, NET_LLC2, "timeout", bin_net_llc_llc2_timeout_table },
658 {}
659 };
660
661 static const struct bin_table bin_net_llc_table[] = {
662 { CTL_DIR, NET_LLC2, "llc2", bin_net_llc_llc2_table },
663 { CTL_DIR, NET_LLC_STATION, "station", bin_net_llc_station_table },
664 {}
665 };
666
667 static const struct bin_table bin_net_netfilter_table[] = {
668 { CTL_INT, NET_NF_CONNTRACK_MAX, "nf_conntrack_max" },
669 /* NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT "nf_conntrack_tcp_timeout_syn_sent" no longer used */
670 /* NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV "nf_conntrack_tcp_timeout_syn_recv" no longer used */
671 /* NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED "nf_conntrack_tcp_timeout_established" no longer used */
672 /* NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT "nf_conntrack_tcp_timeout_fin_wait" no longer used */
673 /* NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT "nf_conntrack_tcp_timeout_close_wait" no longer used */
674 /* NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK "nf_conntrack_tcp_timeout_last_ack" no longer used */
675 /* NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT "nf_conntrack_tcp_timeout_time_wait" no longer used */
676 /* NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE "nf_conntrack_tcp_timeout_close" no longer used */
677 /* NET_NF_CONNTRACK_UDP_TIMEOUT "nf_conntrack_udp_timeout" no longer used */
678 /* NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM "nf_conntrack_udp_timeout_stream" no longer used */
679 /* NET_NF_CONNTRACK_ICMP_TIMEOUT "nf_conntrack_icmp_timeout" no longer used */
680 /* NET_NF_CONNTRACK_GENERIC_TIMEOUT "nf_conntrack_generic_timeout" no longer used */
681 { CTL_INT, NET_NF_CONNTRACK_BUCKETS, "nf_conntrack_buckets" },
682 { CTL_INT, NET_NF_CONNTRACK_LOG_INVALID, "nf_conntrack_log_invalid" },
683 /* NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS "nf_conntrack_tcp_timeout_max_retrans" no longer used */
684 { CTL_INT, NET_NF_CONNTRACK_TCP_LOOSE, "nf_conntrack_tcp_loose" },
685 { CTL_INT, NET_NF_CONNTRACK_TCP_BE_LIBERAL, "nf_conntrack_tcp_be_liberal" },
686 { CTL_INT, NET_NF_CONNTRACK_TCP_MAX_RETRANS, "nf_conntrack_tcp_max_retrans" },
687 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED "nf_conntrack_sctp_timeout_closed" no longer used */
688 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT "nf_conntrack_sctp_timeout_cookie_wait" no longer used */
689 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED "nf_conntrack_sctp_timeout_cookie_echoed" no longer used */
690 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED "nf_conntrack_sctp_timeout_established" no longer used */
691 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT "nf_conntrack_sctp_timeout_shutdown_sent" no longer used */
692 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD "nf_conntrack_sctp_timeout_shutdown_recd" no longer used */
693 /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT "nf_conntrack_sctp_timeout_shutdown_ack_sent" no longer used */
694 { CTL_INT, NET_NF_CONNTRACK_COUNT, "nf_conntrack_count" },
695 /* NET_NF_CONNTRACK_ICMPV6_TIMEOUT "nf_conntrack_icmpv6_timeout" no longer used */
696 /* NET_NF_CONNTRACK_FRAG6_TIMEOUT "nf_conntrack_frag6_timeout" no longer used */
697 { CTL_INT, NET_NF_CONNTRACK_FRAG6_LOW_THRESH, "nf_conntrack_frag6_low_thresh" },
698 { CTL_INT, NET_NF_CONNTRACK_FRAG6_HIGH_THRESH, "nf_conntrack_frag6_high_thresh" },
699 { CTL_INT, NET_NF_CONNTRACK_CHECKSUM, "nf_conntrack_checksum" },
700
701 {}
702 };
703
704 static const struct bin_table bin_net_irda_table[] = {
705 { CTL_INT, NET_IRDA_DISCOVERY, "discovery" },
706 { CTL_STR, NET_IRDA_DEVNAME, "devname" },
707 { CTL_INT, NET_IRDA_DEBUG, "debug" },
708 { CTL_INT, NET_IRDA_FAST_POLL, "fast_poll_increase" },
709 { CTL_INT, NET_IRDA_DISCOVERY_SLOTS, "discovery_slots" },
710 { CTL_INT, NET_IRDA_DISCOVERY_TIMEOUT, "discovery_timeout" },
711 { CTL_INT, NET_IRDA_SLOT_TIMEOUT, "slot_timeout" },
712 { CTL_INT, NET_IRDA_MAX_BAUD_RATE, "max_baud_rate" },
713 { CTL_INT, NET_IRDA_MIN_TX_TURN_TIME, "min_tx_turn_time" },
714 { CTL_INT, NET_IRDA_MAX_TX_DATA_SIZE, "max_tx_data_size" },
715 { CTL_INT, NET_IRDA_MAX_TX_WINDOW, "max_tx_window" },
716 { CTL_INT, NET_IRDA_MAX_NOREPLY_TIME, "max_noreply_time" },
717 { CTL_INT, NET_IRDA_WARN_NOREPLY_TIME, "warn_noreply_time" },
718 { CTL_INT, NET_IRDA_LAP_KEEPALIVE_TIME, "lap_keepalive_time" },
719 {}
720 };
721
722 static const struct bin_table bin_net_table[] = {
723 { CTL_DIR, NET_CORE, "core", bin_net_core_table },
724 /* NET_ETHER not used */
725 /* NET_802 not used */
726 { CTL_DIR, NET_UNIX, "unix", bin_net_unix_table },
727 { CTL_DIR, NET_IPV4, "ipv4", bin_net_ipv4_table },
728 { CTL_DIR, NET_IPX, "ipx", bin_net_ipx_table },
729 { CTL_DIR, NET_ATALK, "appletalk", bin_net_atalk_table },
730 { CTL_DIR, NET_NETROM, "netrom", bin_net_netrom_table },
731 { CTL_DIR, NET_AX25, "ax25", bin_net_ax25_table },
732 /* NET_BRIDGE "bridge" no longer used */
733 { CTL_DIR, NET_ROSE, "rose", bin_net_rose_table },
734 { CTL_DIR, NET_IPV6, "ipv6", bin_net_ipv6_table },
735 { CTL_DIR, NET_X25, "x25", bin_net_x25_table },
736 { CTL_DIR, NET_TR, "token-ring", bin_net_tr_table },
737 { CTL_DIR, NET_DECNET, "decnet", bin_net_decnet_table },
738 /* NET_ECONET not used */
739 { CTL_DIR, NET_SCTP, "sctp", bin_net_sctp_table },
740 { CTL_DIR, NET_LLC, "llc", bin_net_llc_table },
741 { CTL_DIR, NET_NETFILTER, "netfilter", bin_net_netfilter_table },
742 /* NET_DCCP "dccp" no longer used */
743 { CTL_DIR, NET_IRDA, "irda", bin_net_irda_table },
744 { CTL_INT, 2089, "nf_conntrack_max" },
745 {}
746 };
747
748 static const struct bin_table bin_fs_quota_table[] = {
749 { CTL_INT, FS_DQ_LOOKUPS, "lookups" },
750 { CTL_INT, FS_DQ_DROPS, "drops" },
751 { CTL_INT, FS_DQ_READS, "reads" },
752 { CTL_INT, FS_DQ_WRITES, "writes" },
753 { CTL_INT, FS_DQ_CACHE_HITS, "cache_hits" },
754 { CTL_INT, FS_DQ_ALLOCATED, "allocated_dquots" },
755 { CTL_INT, FS_DQ_FREE, "free_dquots" },
756 { CTL_INT, FS_DQ_SYNCS, "syncs" },
757 { CTL_INT, FS_DQ_WARNINGS, "warnings" },
758 {}
759 };
760
761 static const struct bin_table bin_fs_xfs_table[] = {
762 { CTL_INT, XFS_SGID_INHERIT, "irix_sgid_inherit" },
763 { CTL_INT, XFS_SYMLINK_MODE, "irix_symlink_mode" },
764 { CTL_INT, XFS_PANIC_MASK, "panic_mask" },
765
766 { CTL_INT, XFS_ERRLEVEL, "error_level" },
767 { CTL_INT, XFS_SYNCD_TIMER, "xfssyncd_centisecs" },
768 { CTL_INT, XFS_INHERIT_SYNC, "inherit_sync" },
769 { CTL_INT, XFS_INHERIT_NODUMP, "inherit_nodump" },
770 { CTL_INT, XFS_INHERIT_NOATIME, "inherit_noatime" },
771 { CTL_INT, XFS_BUF_TIMER, "xfsbufd_centisecs" },
772 { CTL_INT, XFS_BUF_AGE, "age_buffer_centisecs" },
773 { CTL_INT, XFS_INHERIT_NOSYM, "inherit_nosymlinks" },
774 { CTL_INT, XFS_ROTORSTEP, "rotorstep" },
775 { CTL_INT, XFS_INHERIT_NODFRG, "inherit_nodefrag" },
776 { CTL_INT, XFS_FILESTREAM_TIMER, "filestream_centisecs" },
777 { CTL_INT, XFS_STATS_CLEAR, "stats_clear" },
778 {}
779 };
780
781 static const struct bin_table bin_fs_ocfs2_nm_table[] = {
782 { CTL_STR, 1, "hb_ctl_path" },
783 {}
784 };
785
786 static const struct bin_table bin_fs_ocfs2_table[] = {
787 { CTL_DIR, 1, "nm", bin_fs_ocfs2_nm_table },
788 {}
789 };
790
791 static const struct bin_table bin_inotify_table[] = {
792 { CTL_INT, INOTIFY_MAX_USER_INSTANCES, "max_user_instances" },
793 { CTL_INT, INOTIFY_MAX_USER_WATCHES, "max_user_watches" },
794 { CTL_INT, INOTIFY_MAX_QUEUED_EVENTS, "max_queued_events" },
795 {}
796 };
797
798 static const struct bin_table bin_fs_table[] = {
799 { CTL_INT, FS_NRINODE, "inode-nr" },
800 { CTL_INT, FS_STATINODE, "inode-state" },
801 /* FS_MAXINODE unused */
802 /* FS_NRDQUOT unused */
803 /* FS_MAXDQUOT unused */
804 /* FS_NRFILE "file-nr" no longer used */
805 { CTL_INT, FS_MAXFILE, "file-max" },
806 { CTL_INT, FS_DENTRY, "dentry-state" },
807 /* FS_NRSUPER unused */
808 /* FS_MAXUPSER unused */
809 { CTL_INT, FS_OVERFLOWUID, "overflowuid" },
810 { CTL_INT, FS_OVERFLOWGID, "overflowgid" },
811 { CTL_INT, FS_LEASES, "leases-enable" },
812 { CTL_INT, FS_DIR_NOTIFY, "dir-notify-enable" },
813 { CTL_INT, FS_LEASE_TIME, "lease-break-time" },
814 { CTL_DIR, FS_DQSTATS, "quota", bin_fs_quota_table },
815 { CTL_DIR, FS_XFS, "xfs", bin_fs_xfs_table },
816 { CTL_ULONG, FS_AIO_NR, "aio-nr" },
817 { CTL_ULONG, FS_AIO_MAX_NR, "aio-max-nr" },
818 { CTL_DIR, FS_INOTIFY, "inotify", bin_inotify_table },
819 { CTL_DIR, FS_OCFS2, "ocfs2", bin_fs_ocfs2_table },
820 { CTL_INT, KERN_SETUID_DUMPABLE, "suid_dumpable" },
821 {}
822 };
823
824 static const struct bin_table bin_ipmi_table[] = {
825 { CTL_INT, DEV_IPMI_POWEROFF_POWERCYCLE, "poweroff_powercycle" },
826 {}
827 };
828
829 static const struct bin_table bin_mac_hid_files[] = {
830 /* DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES unused */
831 /* DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES unused */
832 { CTL_INT, DEV_MAC_HID_MOUSE_BUTTON_EMULATION, "mouse_button_emulation" },
833 { CTL_INT, DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE, "mouse_button2_keycode" },
834 { CTL_INT, DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE, "mouse_button3_keycode" },
835 /* DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES unused */
836 {}
837 };
838
839 static const struct bin_table bin_raid_table[] = {
840 { CTL_INT, DEV_RAID_SPEED_LIMIT_MIN, "speed_limit_min" },
841 { CTL_INT, DEV_RAID_SPEED_LIMIT_MAX, "speed_limit_max" },
842 {}
843 };
844
845 static const struct bin_table bin_scsi_table[] = {
846 { CTL_INT, DEV_SCSI_LOGGING_LEVEL, "logging_level" },
847 {}
848 };
849
850 static const struct bin_table bin_dev_table[] = {
851 /* DEV_CDROM "cdrom" no longer used */
852 /* DEV_HWMON unused */
853 /* DEV_PARPORT "parport" no longer used */
854 { CTL_DIR, DEV_RAID, "raid", bin_raid_table },
855 { CTL_DIR, DEV_MAC_HID, "mac_hid", bin_mac_hid_files },
856 { CTL_DIR, DEV_SCSI, "scsi", bin_scsi_table },
857 { CTL_DIR, DEV_IPMI, "ipmi", bin_ipmi_table },
858 {}
859 };
860
861 static const struct bin_table bin_bus_isa_table[] = {
862 { CTL_INT, BUS_ISA_MEM_BASE, "membase" },
863 { CTL_INT, BUS_ISA_PORT_BASE, "portbase" },
864 { CTL_INT, BUS_ISA_PORT_SHIFT, "portshift" },
865 {}
866 };
867
868 static const struct bin_table bin_bus_table[] = {
869 { CTL_DIR, CTL_BUS_ISA, "isa", bin_bus_isa_table },
870 {}
871 };
872
873
874 static const struct bin_table bin_s390dbf_table[] = {
875 { CTL_INT, 5678 /* CTL_S390DBF_STOPPABLE */, "debug_stoppable" },
876 { CTL_INT, 5679 /* CTL_S390DBF_ACTIVE */, "debug_active" },
877 {}
878 };
879
880 static const struct bin_table bin_sunrpc_table[] = {
881 /* CTL_RPCDEBUG "rpc_debug" no longer used */
882 /* CTL_NFSDEBUG "nfs_debug" no longer used */
883 /* CTL_NFSDDEBUG "nfsd_debug" no longer used */
884 /* CTL_NLMDEBUG "nlm_debug" no longer used */
885
886 { CTL_INT, CTL_SLOTTABLE_UDP, "udp_slot_table_entries" },
887 { CTL_INT, CTL_SLOTTABLE_TCP, "tcp_slot_table_entries" },
888 { CTL_INT, CTL_MIN_RESVPORT, "min_resvport" },
889 { CTL_INT, CTL_MAX_RESVPORT, "max_resvport" },
890 {}
891 };
892
893 static const struct bin_table bin_pm_table[] = {
894 /* frv specific */
895 /* 1 == CTL_PM_SUSPEND "suspend" no longer used" */
896 { CTL_INT, 2 /* CTL_PM_CMODE */, "cmode" },
897 { CTL_INT, 3 /* CTL_PM_P0 */, "p0" },
898 { CTL_INT, 4 /* CTL_PM_CM */, "cm" },
899 {}
900 };
901
902 static const struct bin_table bin_root_table[] = {
903 { CTL_DIR, CTL_KERN, "kernel", bin_kern_table },
904 { CTL_DIR, CTL_VM, "vm", bin_vm_table },
905 { CTL_DIR, CTL_NET, "net", bin_net_table },
906 /* CTL_PROC not used */
907 { CTL_DIR, CTL_FS, "fs", bin_fs_table },
908 /* CTL_DEBUG "debug" no longer used */
909 { CTL_DIR, CTL_DEV, "dev", bin_dev_table },
910 { CTL_DIR, CTL_BUS, "bus", bin_bus_table },
911 { CTL_DIR, CTL_ABI, "abi" },
912 /* CTL_CPU not used */
913 /* CTL_ARLAN "arlan" no longer used */
914 { CTL_DIR, CTL_S390DBF, "s390dbf", bin_s390dbf_table },
915 { CTL_DIR, CTL_SUNRPC, "sunrpc", bin_sunrpc_table },
916 { CTL_DIR, CTL_PM, "pm", bin_pm_table },
917 {}
918 };
919
920 static ssize_t bin_dir(struct file *file,
921 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
922 {
923 return -ENOTDIR;
924 }
925
926
927 static ssize_t bin_string(struct file *file,
928 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
929 {
930 ssize_t result, copied = 0;
931
932 if (oldval && oldlen) {
933 char __user *lastp;
934 loff_t pos = 0;
935 int ch;
936
937 result = vfs_read(file, oldval, oldlen, &pos);
938 if (result < 0)
939 goto out;
940
941 copied = result;
942 lastp = oldval + copied - 1;
943
944 result = -EFAULT;
945 if (get_user(ch, lastp))
946 goto out;
947
948 /* Trim off the trailing newline */
949 if (ch == '\n') {
950 result = -EFAULT;
951 if (put_user('\0', lastp))
952 goto out;
953 copied -= 1;
954 }
955 }
956
957 if (newval && newlen) {
958 loff_t pos = 0;
959
960 result = vfs_write(file, newval, newlen, &pos);
961 if (result < 0)
962 goto out;
963 }
964
965 result = copied;
966 out:
967 return result;
968 }
969
970 static ssize_t bin_intvec(struct file *file,
971 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
972 {
973 ssize_t copied = 0;
974 char *buffer;
975 ssize_t result;
976
977 result = -ENOMEM;
978 buffer = kmalloc(BUFSZ, GFP_KERNEL);
979 if (!buffer)
980 goto out;
981
982 if (oldval && oldlen) {
983 unsigned __user *vec = oldval;
984 size_t length = oldlen / sizeof(*vec);
985 char *str, *end;
986 int i;
987
988 result = kernel_read(file, 0, buffer, BUFSZ - 1);
989 if (result < 0)
990 goto out_kfree;
991
992 str = buffer;
993 end = str + result;
994 *end++ = '\0';
995 for (i = 0; i < length; i++) {
996 unsigned long value;
997
998 value = simple_strtoul(str, &str, 10);
999 while (isspace(*str))
1000 str++;
1001
1002 result = -EFAULT;
1003 if (put_user(value, vec + i))
1004 goto out_kfree;
1005
1006 copied += sizeof(*vec);
1007 if (!isdigit(*str))
1008 break;
1009 }
1010 }
1011
1012 if (newval && newlen) {
1013 unsigned __user *vec = newval;
1014 size_t length = newlen / sizeof(*vec);
1015 char *str, *end;
1016 int i;
1017
1018 str = buffer;
1019 end = str + BUFSZ;
1020 for (i = 0; i < length; i++) {
1021 unsigned long value;
1022
1023 result = -EFAULT;
1024 if (get_user(value, vec + i))
1025 goto out_kfree;
1026
1027 str += scnprintf(str, end - str, "%lu\t", value);
1028 }
1029
1030 result = kernel_write(file, buffer, str - buffer, 0);
1031 if (result < 0)
1032 goto out_kfree;
1033 }
1034 result = copied;
1035 out_kfree:
1036 kfree(buffer);
1037 out:
1038 return result;
1039 }
1040
1041 static ssize_t bin_ulongvec(struct file *file,
1042 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1043 {
1044 ssize_t copied = 0;
1045 char *buffer;
1046 ssize_t result;
1047
1048 result = -ENOMEM;
1049 buffer = kmalloc(BUFSZ, GFP_KERNEL);
1050 if (!buffer)
1051 goto out;
1052
1053 if (oldval && oldlen) {
1054 unsigned long __user *vec = oldval;
1055 size_t length = oldlen / sizeof(*vec);
1056 char *str, *end;
1057 int i;
1058
1059 result = kernel_read(file, 0, buffer, BUFSZ - 1);
1060 if (result < 0)
1061 goto out_kfree;
1062
1063 str = buffer;
1064 end = str + result;
1065 *end++ = '\0';
1066 for (i = 0; i < length; i++) {
1067 unsigned long value;
1068
1069 value = simple_strtoul(str, &str, 10);
1070 while (isspace(*str))
1071 str++;
1072
1073 result = -EFAULT;
1074 if (put_user(value, vec + i))
1075 goto out_kfree;
1076
1077 copied += sizeof(*vec);
1078 if (!isdigit(*str))
1079 break;
1080 }
1081 }
1082
1083 if (newval && newlen) {
1084 unsigned long __user *vec = newval;
1085 size_t length = newlen / sizeof(*vec);
1086 char *str, *end;
1087 int i;
1088
1089 str = buffer;
1090 end = str + BUFSZ;
1091 for (i = 0; i < length; i++) {
1092 unsigned long value;
1093
1094 result = -EFAULT;
1095 if (get_user(value, vec + i))
1096 goto out_kfree;
1097
1098 str += scnprintf(str, end - str, "%lu\t", value);
1099 }
1100
1101 result = kernel_write(file, buffer, str - buffer, 0);
1102 if (result < 0)
1103 goto out_kfree;
1104 }
1105 result = copied;
1106 out_kfree:
1107 kfree(buffer);
1108 out:
1109 return result;
1110 }
1111
1112 static ssize_t bin_uuid(struct file *file,
1113 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1114 {
1115 ssize_t result, copied = 0;
1116
1117 /* Only supports reads */
1118 if (oldval && oldlen) {
1119 char buf[40], *str = buf;
1120 unsigned char uuid[16];
1121 int i;
1122
1123 result = kernel_read(file, 0, buf, sizeof(buf) - 1);
1124 if (result < 0)
1125 goto out;
1126
1127 buf[result] = '\0';
1128
1129 /* Convert the uuid to from a string to binary */
1130 for (i = 0; i < 16; i++) {
1131 result = -EIO;
1132 if (!isxdigit(str[0]) || !isxdigit(str[1]))
1133 goto out;
1134
1135 uuid[i] = (hex_to_bin(str[0]) << 4) |
1136 hex_to_bin(str[1]);
1137 str += 2;
1138 if (*str == '-')
1139 str++;
1140 }
1141
1142 if (oldlen > 16)
1143 oldlen = 16;
1144
1145 result = -EFAULT;
1146 if (copy_to_user(oldval, uuid, oldlen))
1147 goto out;
1148
1149 copied = oldlen;
1150 }
1151 result = copied;
1152 out:
1153 return result;
1154 }
1155
1156 static ssize_t bin_dn_node_address(struct file *file,
1157 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1158 {
1159 ssize_t result, copied = 0;
1160
1161 if (oldval && oldlen) {
1162 char buf[15], *nodep;
1163 unsigned long area, node;
1164 __le16 dnaddr;
1165
1166 result = kernel_read(file, 0, buf, sizeof(buf) - 1);
1167 if (result < 0)
1168 goto out;
1169
1170 buf[result] = '\0';
1171
1172 /* Convert the decnet address to binary */
1173 result = -EIO;
1174 nodep = strchr(buf, '.');
1175 if (!nodep)
1176 goto out;
1177 ++nodep;
1178
1179 area = simple_strtoul(buf, NULL, 10);
1180 node = simple_strtoul(nodep, NULL, 10);
1181
1182 result = -EIO;
1183 if ((area > 63)||(node > 1023))
1184 goto out;
1185
1186 dnaddr = cpu_to_le16((area << 10) | node);
1187
1188 result = -EFAULT;
1189 if (put_user(dnaddr, (__le16 __user *)oldval))
1190 goto out;
1191
1192 copied = sizeof(dnaddr);
1193 }
1194
1195 if (newval && newlen) {
1196 __le16 dnaddr;
1197 char buf[15];
1198 int len;
1199
1200 result = -EINVAL;
1201 if (newlen != sizeof(dnaddr))
1202 goto out;
1203
1204 result = -EFAULT;
1205 if (get_user(dnaddr, (__le16 __user *)newval))
1206 goto out;
1207
1208 len = scnprintf(buf, sizeof(buf), "%hu.%hu",
1209 le16_to_cpu(dnaddr) >> 10,
1210 le16_to_cpu(dnaddr) & 0x3ff);
1211
1212 result = kernel_write(file, buf, len, 0);
1213 if (result < 0)
1214 goto out;
1215 }
1216
1217 result = copied;
1218 out:
1219 return result;
1220 }
1221
1222 static const struct bin_table *get_sysctl(const int *name, int nlen, char *path)
1223 {
1224 const struct bin_table *table = &bin_root_table[0];
1225 int ctl_name;
1226
1227 /* The binary sysctl tables have a small maximum depth so
1228 * there is no danger of overflowing our path as it PATH_MAX
1229 * bytes long.
1230 */
1231 memcpy(path, "sys/", 4);
1232 path += 4;
1233
1234 repeat:
1235 if (!nlen)
1236 return ERR_PTR(-ENOTDIR);
1237 ctl_name = *name;
1238 name++;
1239 nlen--;
1240 for ( ; table->convert; table++) {
1241 int len = 0;
1242
1243 /*
1244 * For a wild card entry map from ifindex to network
1245 * device name.
1246 */
1247 if (!table->ctl_name) {
1248 #ifdef CONFIG_NET
1249 struct net *net = current->nsproxy->net_ns;
1250 struct net_device *dev;
1251 dev = dev_get_by_index(net, ctl_name);
1252 if (dev) {
1253 len = strlen(dev->name);
1254 memcpy(path, dev->name, len);
1255 dev_put(dev);
1256 }
1257 #endif
1258 /* Use the well known sysctl number to proc name mapping */
1259 } else if (ctl_name == table->ctl_name) {
1260 len = strlen(table->procname);
1261 memcpy(path, table->procname, len);
1262 }
1263 if (len) {
1264 path += len;
1265 if (table->child) {
1266 *path++ = '/';
1267 table = table->child;
1268 goto repeat;
1269 }
1270 *path = '\0';
1271 return table;
1272 }
1273 }
1274 return ERR_PTR(-ENOTDIR);
1275 }
1276
1277 static char *sysctl_getname(const int *name, int nlen, const struct bin_table **tablep)
1278 {
1279 char *tmp, *result;
1280
1281 result = ERR_PTR(-ENOMEM);
1282 tmp = __getname();
1283 if (tmp) {
1284 const struct bin_table *table = get_sysctl(name, nlen, tmp);
1285 result = tmp;
1286 *tablep = table;
1287 if (IS_ERR(table)) {
1288 __putname(tmp);
1289 result = ERR_CAST(table);
1290 }
1291 }
1292 return result;
1293 }
1294
1295 static ssize_t binary_sysctl(const int *name, int nlen,
1296 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1297 {
1298 const struct bin_table *table = NULL;
1299 struct vfsmount *mnt;
1300 struct file *file;
1301 ssize_t result;
1302 char *pathname;
1303 int flags;
1304
1305 pathname = sysctl_getname(name, nlen, &table);
1306 result = PTR_ERR(pathname);
1307 if (IS_ERR(pathname))
1308 goto out;
1309
1310 /* How should the sysctl be accessed? */
1311 if (oldval && oldlen && newval && newlen) {
1312 flags = O_RDWR;
1313 } else if (newval && newlen) {
1314 flags = O_WRONLY;
1315 } else if (oldval && oldlen) {
1316 flags = O_RDONLY;
1317 } else {
1318 result = 0;
1319 goto out_putname;
1320 }
1321
1322 mnt = task_active_pid_ns(current)->proc_mnt;
1323 file = file_open_root(mnt->mnt_root, mnt, pathname, flags, 0);
1324 result = PTR_ERR(file);
1325 if (IS_ERR(file))
1326 goto out_putname;
1327
1328 result = table->convert(file, oldval, oldlen, newval, newlen);
1329
1330 fput(file);
1331 out_putname:
1332 __putname(pathname);
1333 out:
1334 return result;
1335 }
1336
1337
1338 #else /* CONFIG_SYSCTL_SYSCALL */
1339
1340 static ssize_t binary_sysctl(const int *name, int nlen,
1341 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1342 {
1343 return -ENOSYS;
1344 }
1345
1346 #endif /* CONFIG_SYSCTL_SYSCALL */
1347
1348
1349 static void deprecated_sysctl_warning(const int *name, int nlen)
1350 {
1351 int i;
1352
1353 /*
1354 * CTL_KERN/KERN_VERSION is used by older glibc and cannot
1355 * ever go away.
1356 */
1357 if (name[0] == CTL_KERN && name[1] == KERN_VERSION)
1358 return;
1359
1360 if (printk_ratelimit()) {
1361 printk(KERN_INFO
1362 "warning: process `%s' used the deprecated sysctl "
1363 "system call with ", current->comm);
1364 for (i = 0; i < nlen; i++)
1365 printk("%d.", name[i]);
1366 printk("\n");
1367 }
1368 return;
1369 }
1370
1371 #define WARN_ONCE_HASH_BITS 8
1372 #define WARN_ONCE_HASH_SIZE (1<<WARN_ONCE_HASH_BITS)
1373
1374 static DECLARE_BITMAP(warn_once_bitmap, WARN_ONCE_HASH_SIZE);
1375
1376 #define FNV32_OFFSET 2166136261U
1377 #define FNV32_PRIME 0x01000193
1378
1379 /*
1380 * Print each legacy sysctl (approximately) only once.
1381 * To avoid making the tables non-const use a external
1382 * hash-table instead.
1383 * Worst case hash collision: 6, but very rarely.
1384 * NOTE! We don't use the SMP-safe bit tests. We simply
1385 * don't care enough.
1386 */
1387 static void warn_on_bintable(const int *name, int nlen)
1388 {
1389 int i;
1390 u32 hash = FNV32_OFFSET;
1391
1392 for (i = 0; i < nlen; i++)
1393 hash = (hash ^ name[i]) * FNV32_PRIME;
1394 hash %= WARN_ONCE_HASH_SIZE;
1395 if (__test_and_set_bit(hash, warn_once_bitmap))
1396 return;
1397 deprecated_sysctl_warning(name, nlen);
1398 }
1399
1400 static ssize_t do_sysctl(int __user *args_name, int nlen,
1401 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1402 {
1403 int name[CTL_MAXNAME];
1404 int i;
1405
1406 /* Check args->nlen. */
1407 if (nlen < 0 || nlen > CTL_MAXNAME)
1408 return -ENOTDIR;
1409 /* Read in the sysctl name for simplicity */
1410 for (i = 0; i < nlen; i++)
1411 if (get_user(name[i], args_name + i))
1412 return -EFAULT;
1413
1414 warn_on_bintable(name, nlen);
1415
1416 return binary_sysctl(name, nlen, oldval, oldlen, newval, newlen);
1417 }
1418
1419 SYSCALL_DEFINE1(sysctl, struct __sysctl_args __user *, args)
1420 {
1421 struct __sysctl_args tmp;
1422 size_t oldlen = 0;
1423 ssize_t result;
1424
1425 if (copy_from_user(&tmp, args, sizeof(tmp)))
1426 return -EFAULT;
1427
1428 if (tmp.oldval && !tmp.oldlenp)
1429 return -EFAULT;
1430
1431 if (tmp.oldlenp && get_user(oldlen, tmp.oldlenp))
1432 return -EFAULT;
1433
1434 result = do_sysctl(tmp.name, tmp.nlen, tmp.oldval, oldlen,
1435 tmp.newval, tmp.newlen);
1436
1437 if (result >= 0) {
1438 oldlen = result;
1439 result = 0;
1440 }
1441
1442 if (tmp.oldlenp && put_user(oldlen, tmp.oldlenp))
1443 return -EFAULT;
1444
1445 return result;
1446 }
1447
1448
1449 #ifdef CONFIG_COMPAT
1450
1451 struct compat_sysctl_args {
1452 compat_uptr_t name;
1453 int nlen;
1454 compat_uptr_t oldval;
1455 compat_uptr_t oldlenp;
1456 compat_uptr_t newval;
1457 compat_size_t newlen;
1458 compat_ulong_t __unused[4];
1459 };
1460
1461 COMPAT_SYSCALL_DEFINE1(sysctl, struct compat_sysctl_args __user *, args)
1462 {
1463 struct compat_sysctl_args tmp;
1464 compat_size_t __user *compat_oldlenp;
1465 size_t oldlen = 0;
1466 ssize_t result;
1467
1468 if (copy_from_user(&tmp, args, sizeof(tmp)))
1469 return -EFAULT;
1470
1471 if (tmp.oldval && !tmp.oldlenp)
1472 return -EFAULT;
1473
1474 compat_oldlenp = compat_ptr(tmp.oldlenp);
1475 if (compat_oldlenp && get_user(oldlen, compat_oldlenp))
1476 return -EFAULT;
1477
1478 result = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
1479 compat_ptr(tmp.oldval), oldlen,
1480 compat_ptr(tmp.newval), tmp.newlen);
1481
1482 if (result >= 0) {
1483 oldlen = result;
1484 result = 0;
1485 }
1486
1487 if (compat_oldlenp && put_user(oldlen, compat_oldlenp))
1488 return -EFAULT;
1489
1490 return result;
1491 }
1492
1493 #endif /* CONFIG_COMPAT */
Linux with added FPC-III support