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/uuid.h>
17 #include <linux/slab.h>
18 #include <linux/compat.h>
19
20 #ifdef CONFIG_SYSCTL_SYSCALL
21
22 struct bin_table;
23 typedef ssize_t bin_convert_t(struct file *file,
24 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen);
25
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;
32
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
39
40 #define BUFSZ 256
41
42 struct bin_table {
43 bin_convert_t *convert;
44 int ctl_name;
45 const char *procname;
46 const struct bin_table *child;
47 };
48
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" },
56 {}
57 };
58
59 static const struct bin_table bin_pty_table[] = {
60 { CTL_INT, PTY_MAX, "max" },
61 { CTL_INT, PTY_NR, "nr" },
62 {}
63 };
64
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" },
74
75 { CTL_INT, KERN_PANIC, "panic" },
76 { CTL_INT, KERN_REALROOTDEV, "real-root-dev" },
77
78 { CTL_STR, KERN_SPARC_REBOOT, "reboot-cmd" },
79 { CTL_INT, KERN_CTLALTDEL, "ctrl-alt-del" },
80 { CTL_INT, KERN_PRINTK, "printk" },
81
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" },
86
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 */
91
92 /* KERN_RTSIGNR not used */
93 /* KERN_RTSIGMAX not used */
94
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" },
107
108 { CTL_INT, KERN_OVERFLOWUID, "overflowuid" },
109 { CTL_INT, KERN_OVERFLOWGID, "overflowgid" },
110
111 { CTL_STR, KERN_HOTPLUG, "hotplug", },
112 { CTL_INT, KERN_IEEE_EMULATION_WARNINGS, "ieee_emulation_warnings" },
113
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" },
123
124 { CTL_INT, KERN_PRINTK_RATELIMIT, "printk_ratelimit" },
125 { CTL_INT, KERN_PRINTK_RATELIMIT_BURST, "printk_ratelimit_burst" },
126
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" },
134
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" },
142 {}
143 };
144
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" },
173
174 {}
175 };
176
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" },
200 {},
201 };
202
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" },
207 {}
208 };
209
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" },
229 {}
230 };
231
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" },
235
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" },
252
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" },
257 {}
258 };
259
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 },
264 {}
265 };
266
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" },
286 {}
287 };
288
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 },
292 {}
293 };
294
295 static const struct bin_table bin_net_ipv4_netfilter_table[] = {
296 { CTL_INT, NET_IPV4_NF_CONNTRACK_MAX, "ip_conntrack_max" },
297
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 */
306
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 */
311
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" },
318
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 */
326
327 { CTL_INT, NET_IPV4_NF_CONNTRACK_COUNT, "ip_conntrack_count" },
328 { CTL_INT, NET_IPV4_NF_CONNTRACK_CHECKSUM, "ip_conntrack_checksum" },
329 {}
330 };
331
332 static const struct bin_table bin_net_ipv4_table[] = {
333 {CTL_INT, NET_IPV4_FORWARD, "ip_forward" },
334
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 },
340
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" },
403
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" },
410
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" },
414
415 { CTL_INT, NET_IPV4_IPFRAG_SECRET_INTERVAL, "ipfrag_secret_interval" },
416 /* NET_IPV4_IPFRAG_MAX_DIST "ipfrag_max_dist" no longer used */
417
418 { CTL_INT, 2088 /* NET_IPQ_QMAX */, "ip_queue_maxlen" },
419
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 */
431 {}
432 };
433
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 */
437 {}
438 };
439
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" },
445 {},
446 };
447
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" },
461 {}
462 };
463
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" },
479 {}
480 };
481
482 static const struct bin_table bin_net_ax25_table[] = {
483 { CTL_DIR, 0, NULL, bin_net_ax25_param_table },
484 {}
485 };
486
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" },
498 {}
499 };
500
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" },
527 {}
528 };
529
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 },
534 {}
535 };
536
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" },
548 {}
549 };
550
551 static const struct bin_table bin_net_ipv6_icmp_table[] = {
552 { CTL_INT, NET_IPV6_ICMP_RATELIMIT, "ratelimit" },
553 {}
554 };
555
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" },
568 {}
569 };
570
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" },
578 {}
579 };
580
581 static const struct bin_table bin_net_tr_table[] = {
582 { CTL_INT, NET_TR_RIF_TIMEOUT, "rif_timeout" },
583 {}
584 };
585
586
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" },
592 {}
593 };
594
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 },
603 {}
604 };
605
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" },
621 {}
622 };
623
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" },
642 {}
643 };
644
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" },
650 {}
651 };
652
653 static const struct bin_table bin_net_llc_station_table[] = {
654 { CTL_INT, NET_LLC_STATION_ACK_TIMEOUT, "ack_timeout" },
655 {}
656 };
657
658 static const struct bin_table bin_net_llc_llc2_table[] = {
659 { CTL_DIR, NET_LLC2, "timeout", bin_net_llc_llc2_timeout_table },
660 {}
661 };
662
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 },
666 {}
667 };
668
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" },
702
703 {}
704 };
705
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" },
721 {}
722 };
723
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" },
747 {}
748 };
749
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" },
760 {}
761 };
762
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" },
767
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" },
780 {}
781 };
782
783 static const struct bin_table bin_fs_ocfs2_nm_table[] = {
784 { CTL_STR, 1, "hb_ctl_path" },
785 {}
786 };
787
788 static const struct bin_table bin_fs_ocfs2_table[] = {
789 { CTL_DIR, 1, "nm", bin_fs_ocfs2_nm_table },
790 {}
791 };
792
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" },
797 {}
798 };
799
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" },
823 {}
824 };
825
826 static const struct bin_table bin_ipmi_table[] = {
827 { CTL_INT, DEV_IPMI_POWEROFF_POWERCYCLE, "poweroff_powercycle" },
828 {}
829 };
830
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 */
838 {}
839 };
840
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" },
844 {}
845 };
846
847 static const struct bin_table bin_scsi_table[] = {
848 { CTL_INT, DEV_SCSI_LOGGING_LEVEL, "logging_level" },
849 {}
850 };
851
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 },
860 {}
861 };
862
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" },
867 {}
868 };
869
870 static const struct bin_table bin_bus_table[] = {
871 { CTL_DIR, CTL_BUS_ISA, "isa", bin_bus_isa_table },
872 {}
873 };
874
875
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" },
879 {}
880 };
881
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 */
887
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" },
892 {}
893 };
894
895 static const struct bin_table bin_pm_table[] = {
896 /* frv specific */
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" },
901 {}
902 };
903
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 },
919 {}
920 };
921
bin_dir(struct file * file,void __user * oldval,size_t oldlen,void __user * newval,size_t newlen)922 static ssize_t bin_dir(struct file *file,
923 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
924 {
925 return -ENOTDIR;
926 }
927
928
bin_string(struct file * file,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)
931 {
932 ssize_t result, copied = 0;
933
934 if (oldval && oldlen) {
935 char __user *lastp;
936 loff_t pos = 0;
937 int ch;
938
939 result = vfs_read(file, oldval, oldlen, &pos);
940 if (result < 0)
941 goto out;
942
943 copied = result;
944 lastp = oldval + copied - 1;
945
946 result = -EFAULT;
947 if (get_user(ch, lastp))
948 goto out;
949
950 /* Trim off the trailing newline */
951 if (ch == '\n') {
952 result = -EFAULT;
953 if (put_user('\0', lastp))
954 goto out;
955 copied -= 1;
956 }
957 }
958
959 if (newval && newlen) {
960 loff_t pos = 0;
961
962 result = vfs_write(file, newval, newlen, &pos);
963 if (result < 0)
964 goto out;
965 }
966
967 result = copied;
968 out:
969 return result;
970 }
971
bin_intvec(struct file * file,void __user * oldval,size_t oldlen,void __user * newval,size_t newlen)972 static ssize_t bin_intvec(struct file *file,
973 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
974 {
975 ssize_t copied = 0;
976 char *buffer;
977 ssize_t result;
978
979 result = -ENOMEM;
980 buffer = kmalloc(BUFSZ, GFP_KERNEL);
981 if (!buffer)
982 goto out;
983
984 if (oldval && oldlen) {
985 unsigned __user *vec = oldval;
986 size_t length = oldlen / sizeof(*vec);
987 char *str, *end;
988 int i;
989
990 result = kernel_read(file, 0, buffer, BUFSZ - 1);
991 if (result < 0)
992 goto out_kfree;
993
994 str = buffer;
995 end = str + result;
996 *end++ = '\0';
997 for (i = 0; i < length; i++) {
998 unsigned long value;
999
1000 value = simple_strtoul(str, &str, 10);
1001 while (isspace(*str))
1002 str++;
1003
1004 result = -EFAULT;
1005 if (put_user(value, vec + i))
1006 goto out_kfree;
1007
1008 copied += sizeof(*vec);
1009 if (!isdigit(*str))
1010 break;
1011 }
1012 }
1013
1014 if (newval && newlen) {
1015 unsigned __user *vec = newval;
1016 size_t length = newlen / sizeof(*vec);
1017 char *str, *end;
1018 int i;
1019
1020 str = buffer;
1021 end = str + BUFSZ;
1022 for (i = 0; i < length; i++) {
1023 unsigned long value;
1024
1025 result = -EFAULT;
1026 if (get_user(value, vec + i))
1027 goto out_kfree;
1028
1029 str += scnprintf(str, end - str, "%lu\t", value);
1030 }
1031
1032 result = kernel_write(file, buffer, str - buffer, 0);
1033 if (result < 0)
1034 goto out_kfree;
1035 }
1036 result = copied;
1037 out_kfree:
1038 kfree(buffer);
1039 out:
1040 return result;
1041 }
1042
bin_ulongvec(struct file * file,void __user * oldval,size_t oldlen,void __user * newval,size_t newlen)1043 static ssize_t bin_ulongvec(struct file *file,
1044 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1045 {
1046 ssize_t copied = 0;
1047 char *buffer;
1048 ssize_t result;
1049
1050 result = -ENOMEM;
1051 buffer = kmalloc(BUFSZ, GFP_KERNEL);
1052 if (!buffer)
1053 goto out;
1054
1055 if (oldval && oldlen) {
1056 unsigned long __user *vec = oldval;
1057 size_t length = oldlen / sizeof(*vec);
1058 char *str, *end;
1059 int i;
1060
1061 result = kernel_read(file, 0, buffer, BUFSZ - 1);
1062 if (result < 0)
1063 goto out_kfree;
1064
1065 str = buffer;
1066 end = str + result;
1067 *end++ = '\0';
1068 for (i = 0; i < length; i++) {
1069 unsigned long value;
1070
1071 value = simple_strtoul(str, &str, 10);
1072 while (isspace(*str))
1073 str++;
1074
1075 result = -EFAULT;
1076 if (put_user(value, vec + i))
1077 goto out_kfree;
1078
1079 copied += sizeof(*vec);
1080 if (!isdigit(*str))
1081 break;
1082 }
1083 }
1084
1085 if (newval && newlen) {
1086 unsigned long __user *vec = newval;
1087 size_t length = newlen / sizeof(*vec);
1088 char *str, *end;
1089 int i;
1090
1091 str = buffer;
1092 end = str + BUFSZ;
1093 for (i = 0; i < length; i++) {
1094 unsigned long value;
1095
1096 result = -EFAULT;
1097 if (get_user(value, vec + i))
1098 goto out_kfree;
1099
1100 str += scnprintf(str, end - str, "%lu\t", value);
1101 }
1102
1103 result = kernel_write(file, buffer, str - buffer, 0);
1104 if (result < 0)
1105 goto out_kfree;
1106 }
1107 result = copied;
1108 out_kfree:
1109 kfree(buffer);
1110 out:
1111 return result;
1112 }
1113
bin_uuid(struct file * file,void __user * oldval,size_t oldlen,void __user * newval,size_t newlen)1114 static ssize_t bin_uuid(struct file *file,
1115 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1116 {
1117 ssize_t result, copied = 0;
1118
1119 /* Only supports reads */
1120 if (oldval && oldlen) {
1121 char buf[UUID_STRING_LEN + 1];
1122 uuid_be uuid;
1123
1124 result = kernel_read(file, 0, buf, sizeof(buf) - 1);
1125 if (result < 0)
1126 goto out;
1127
1128 buf[result] = '\0';
1129
1130 result = -EIO;
1131 if (uuid_be_to_bin(buf, &uuid))
1132 goto out;
1133
1134 if (oldlen > 16)
1135 oldlen = 16;
1136
1137 result = -EFAULT;
1138 if (copy_to_user(oldval, &uuid, oldlen))
1139 goto out;
1140
1141 copied = oldlen;
1142 }
1143 result = copied;
1144 out:
1145 return result;
1146 }
1147
bin_dn_node_address(struct file * file,void __user * oldval,size_t oldlen,void __user * newval,size_t newlen)1148 static ssize_t bin_dn_node_address(struct file *file,
1149 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1150 {
1151 ssize_t result, copied = 0;
1152
1153 if (oldval && oldlen) {
1154 char buf[15], *nodep;
1155 unsigned long area, node;
1156 __le16 dnaddr;
1157
1158 result = kernel_read(file, 0, buf, sizeof(buf) - 1);
1159 if (result < 0)
1160 goto out;
1161
1162 buf[result] = '\0';
1163
1164 /* Convert the decnet address to binary */
1165 result = -EIO;
1166 nodep = strchr(buf, '.');
1167 if (!nodep)
1168 goto out;
1169 ++nodep;
1170
1171 area = simple_strtoul(buf, NULL, 10);
1172 node = simple_strtoul(nodep, NULL, 10);
1173
1174 result = -EIO;
1175 if ((area > 63)||(node > 1023))
1176 goto out;
1177
1178 dnaddr = cpu_to_le16((area << 10) | node);
1179
1180 result = -EFAULT;
1181 if (put_user(dnaddr, (__le16 __user *)oldval))
1182 goto out;
1183
1184 copied = sizeof(dnaddr);
1185 }
1186
1187 if (newval && newlen) {
1188 __le16 dnaddr;
1189 char buf[15];
1190 int len;
1191
1192 result = -EINVAL;
1193 if (newlen != sizeof(dnaddr))
1194 goto out;
1195
1196 result = -EFAULT;
1197 if (get_user(dnaddr, (__le16 __user *)newval))
1198 goto out;
1199
1200 len = scnprintf(buf, sizeof(buf), "%hu.%hu",
1201 le16_to_cpu(dnaddr) >> 10,
1202 le16_to_cpu(dnaddr) & 0x3ff);
1203
1204 result = kernel_write(file, buf, len, 0);
1205 if (result < 0)
1206 goto out;
1207 }
1208
1209 result = copied;
1210 out:
1211 return result;
1212 }
1213
get_sysctl(const int * name,int nlen,char * path)1214 static const struct bin_table *get_sysctl(const int *name, int nlen, char *path)
1215 {
1216 const struct bin_table *table = &bin_root_table[0];
1217 int ctl_name;
1218
1219 /* The binary sysctl tables have a small maximum depth so
1220 * there is no danger of overflowing our path as it PATH_MAX
1221 * bytes long.
1222 */
1223 memcpy(path, "sys/", 4);
1224 path += 4;
1225
1226 repeat:
1227 if (!nlen)
1228 return ERR_PTR(-ENOTDIR);
1229 ctl_name = *name;
1230 name++;
1231 nlen--;
1232 for ( ; table->convert; table++) {
1233 int len = 0;
1234
1235 /*
1236 * For a wild card entry map from ifindex to network
1237 * device name.
1238 */
1239 if (!table->ctl_name) {
1240 #ifdef CONFIG_NET
1241 struct net *net = current->nsproxy->net_ns;
1242 struct net_device *dev;
1243 dev = dev_get_by_index(net, ctl_name);
1244 if (dev) {
1245 len = strlen(dev->name);
1246 memcpy(path, dev->name, len);
1247 dev_put(dev);
1248 }
1249 #endif
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);
1254 }
1255 if (len) {
1256 path += len;
1257 if (table->child) {
1258 *path++ = '/';
1259 table = table->child;
1260 goto repeat;
1261 }
1262 *path = '\0';
1263 return table;
1264 }
1265 }
1266 return ERR_PTR(-ENOTDIR);
1267 }
1268
sysctl_getname(const int * name,int nlen,const struct bin_table ** tablep)1269 static char *sysctl_getname(const int *name, int nlen, const struct bin_table **tablep)
1270 {
1271 char *tmp, *result;
1272
1273 result = ERR_PTR(-ENOMEM);
1274 tmp = __getname();
1275 if (tmp) {
1276 const struct bin_table *table = get_sysctl(name, nlen, tmp);
1277 result = tmp;
1278 *tablep = table;
1279 if (IS_ERR(table)) {
1280 __putname(tmp);
1281 result = ERR_CAST(table);
1282 }
1283 }
1284 return result;
1285 }
1286
binary_sysctl(const int * name,int nlen,void __user * oldval,size_t oldlen,void __user * newval,size_t newlen)1287 static ssize_t binary_sysctl(const int *name, int nlen,
1288 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1289 {
1290 const struct bin_table *table = NULL;
1291 struct vfsmount *mnt;
1292 struct file *file;
1293 ssize_t result;
1294 char *pathname;
1295 int flags;
1296
1297 pathname = sysctl_getname(name, nlen, &table);
1298 result = PTR_ERR(pathname);
1299 if (IS_ERR(pathname))
1300 goto out;
1301
1302 /* How should the sysctl be accessed? */
1303 if (oldval && oldlen && newval && newlen) {
1304 flags = O_RDWR;
1305 } else if (newval && newlen) {
1306 flags = O_WRONLY;
1307 } else if (oldval && oldlen) {
1308 flags = O_RDONLY;
1309 } else {
1310 result = 0;
1311 goto out_putname;
1312 }
1313
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);
1317 if (IS_ERR(file))
1318 goto out_putname;
1319
1320 result = table->convert(file, oldval, oldlen, newval, newlen);
1321
1322 fput(file);
1323 out_putname:
1324 __putname(pathname);
1325 out:
1326 return result;
1327 }
1328
1329
1330 #else /* CONFIG_SYSCTL_SYSCALL */
1331
binary_sysctl(const int * name,int nlen,void __user * oldval,size_t oldlen,void __user * newval,size_t newlen)1332 static ssize_t binary_sysctl(const int *name, int nlen,
1333 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1334 {
1335 return -ENOSYS;
1336 }
1337
1338 #endif /* CONFIG_SYSCTL_SYSCALL */
1339
1340
deprecated_sysctl_warning(const int * name,int nlen)1341 static void deprecated_sysctl_warning(const int *name, int nlen)
1342 {
1343 int i;
1344
1345 /*
1346 * CTL_KERN/KERN_VERSION is used by older glibc and cannot
1347 * ever go away.
1348 */
1349 if (name[0] == CTL_KERN && name[1] == KERN_VERSION)
1350 return;
1351
1352 if (printk_ratelimit()) {
1353 printk(KERN_INFO
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]);
1358 printk("\n");
1359 }
1360 return;
1361 }
1362
1363 #define WARN_ONCE_HASH_BITS 8
1364 #define WARN_ONCE_HASH_SIZE (1<<WARN_ONCE_HASH_BITS)
1365
1366 static DECLARE_BITMAP(warn_once_bitmap, WARN_ONCE_HASH_SIZE);
1367
1368 #define FNV32_OFFSET 2166136261U
1369 #define FNV32_PRIME 0x01000193
1370
1371 /*
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.
1378 */
warn_on_bintable(const int * name,int nlen)1379 static void warn_on_bintable(const int *name, int nlen)
1380 {
1381 int i;
1382 u32 hash = FNV32_OFFSET;
1383
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))
1388 return;
1389 deprecated_sysctl_warning(name, nlen);
1390 }
1391
do_sysctl(int __user * args_name,int nlen,void __user * oldval,size_t oldlen,void __user * newval,size_t newlen)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)
1394 {
1395 int name[CTL_MAXNAME];
1396 int i;
1397
1398 /* Check args->nlen. */
1399 if (nlen < 0 || nlen > CTL_MAXNAME)
1400 return -ENOTDIR;
1401 /* Read in the sysctl name for simplicity */
1402 for (i = 0; i < nlen; i++)
1403 if (get_user(name[i], args_name + i))
1404 return -EFAULT;
1405
1406 warn_on_bintable(name, nlen);
1407
1408 return binary_sysctl(name, nlen, oldval, oldlen, newval, newlen);
1409 }
1410
SYSCALL_DEFINE1(sysctl,struct __sysctl_args __user *,args)1411 SYSCALL_DEFINE1(sysctl, struct __sysctl_args __user *, args)
1412 {
1413 struct __sysctl_args tmp;
1414 size_t oldlen = 0;
1415 ssize_t result;
1416
1417 if (copy_from_user(&tmp, args, sizeof(tmp)))
1418 return -EFAULT;
1419
1420 if (tmp.oldval && !tmp.oldlenp)
1421 return -EFAULT;
1422
1423 if (tmp.oldlenp && get_user(oldlen, tmp.oldlenp))
1424 return -EFAULT;
1425
1426 result = do_sysctl(tmp.name, tmp.nlen, tmp.oldval, oldlen,
1427 tmp.newval, tmp.newlen);
1428
1429 if (result >= 0) {
1430 oldlen = result;
1431 result = 0;
1432 }
1433
1434 if (tmp.oldlenp && put_user(oldlen, tmp.oldlenp))
1435 return -EFAULT;
1436
1437 return result;
1438 }
1439
1440
1441 #ifdef CONFIG_COMPAT
1442
1443 struct compat_sysctl_args {
1444 compat_uptr_t name;
1445 int nlen;
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];
1451 };
1452
COMPAT_SYSCALL_DEFINE1(sysctl,struct compat_sysctl_args __user *,args)1453 COMPAT_SYSCALL_DEFINE1(sysctl, struct compat_sysctl_args __user *, args)
1454 {
1455 struct compat_sysctl_args tmp;
1456 compat_size_t __user *compat_oldlenp;
1457 size_t oldlen = 0;
1458 ssize_t result;
1459
1460 if (copy_from_user(&tmp, args, sizeof(tmp)))
1461 return -EFAULT;
1462
1463 if (tmp.oldval && !tmp.oldlenp)
1464 return -EFAULT;
1465
1466 compat_oldlenp = compat_ptr(tmp.oldlenp);
1467 if (compat_oldlenp && get_user(oldlen, compat_oldlenp))
1468 return -EFAULT;
1469
1470 result = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
1471 compat_ptr(tmp.oldval), oldlen,
1472 compat_ptr(tmp.newval), tmp.newlen);
1473
1474 if (result >= 0) {
1475 oldlen = result;
1476 result = 0;
1477 }
1478
1479 if (compat_oldlenp && put_user(oldlen, compat_oldlenp))
1480 return -EFAULT;
1481
1482 return result;
1483 }
1484
1485 #endif /* CONFIG_COMPAT */
1486