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TOMOYO Linux Cross Reference
Linux/kernel/sysctl_binary.c

Version: ~ [ linux-5.4-rc3 ] ~ [ linux-5.3.6 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.79 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.149 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.196 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.196 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.75 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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 <net/ip_vs.h>
  7 #include <linux/syscalls.h>
  8 #include <linux/namei.h>
  9 #include <linux/mount.h>
 10 #include <linux/fs.h>
 11 #include <linux/nsproxy.h>
 12 #include <linux/pid_namespace.h>
 13 #include <linux/file.h>
 14 #include <linux/ctype.h>
 15 #include <linux/netdevice.h>
 16 #include <linux/kernel.h>
 17 #include <linux/slab.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         { CTL_INT,      VM_NR_PDFLUSH_THREADS,          "nr_pdflush_threads" },
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_ABC,                            "tcp_abc" },
391         { CTL_INT,      NET_TCP_MTU_PROBING,                    "tcp_mtu_probing" },
392         { CTL_INT,      NET_TCP_BASE_MSS,                       "tcp_base_mss" },
393         { CTL_INT,      NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS, "tcp_workaround_signed_windows" },
394         { CTL_INT,      NET_TCP_DMA_COPYBREAK,                  "tcp_dma_copybreak" },
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         {}
527 };
528 
529 static const struct bin_table bin_net_ipv6_conf_table[] = {
530         { CTL_DIR,      NET_PROTO_CONF_ALL,             "all",  bin_net_ipv6_conf_var_table },
531         { CTL_DIR,      NET_PROTO_CONF_DEFAULT,         "default", bin_net_ipv6_conf_var_table },
532         { CTL_DIR,      0, NULL, bin_net_ipv6_conf_var_table },
533         {}
534 };
535 
536 static const struct bin_table bin_net_ipv6_route_table[] = {
537         /* NET_IPV6_ROUTE_FLUSH "flush"  no longer used */
538         { CTL_INT,      NET_IPV6_ROUTE_GC_THRESH,               "gc_thresh" },
539         { CTL_INT,      NET_IPV6_ROUTE_MAX_SIZE,                "max_size" },
540         { CTL_INT,      NET_IPV6_ROUTE_GC_MIN_INTERVAL,         "gc_min_interval" },
541         { CTL_INT,      NET_IPV6_ROUTE_GC_TIMEOUT,              "gc_timeout" },
542         { CTL_INT,      NET_IPV6_ROUTE_GC_INTERVAL,             "gc_interval" },
543         { CTL_INT,      NET_IPV6_ROUTE_GC_ELASTICITY,           "gc_elasticity" },
544         { CTL_INT,      NET_IPV6_ROUTE_MTU_EXPIRES,             "mtu_expires" },
545         { CTL_INT,      NET_IPV6_ROUTE_MIN_ADVMSS,              "min_adv_mss" },
546         { CTL_INT,      NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS,      "gc_min_interval_ms" },
547         {}
548 };
549 
550 static const struct bin_table bin_net_ipv6_icmp_table[] = {
551         { CTL_INT,      NET_IPV6_ICMP_RATELIMIT,        "ratelimit" },
552         {}
553 };
554 
555 static const struct bin_table bin_net_ipv6_table[] = {
556         { CTL_DIR,      NET_IPV6_CONF,          "conf",         bin_net_ipv6_conf_table },
557         { CTL_DIR,      NET_IPV6_NEIGH,         "neigh",        bin_net_neigh_table },
558         { CTL_DIR,      NET_IPV6_ROUTE,         "route",        bin_net_ipv6_route_table },
559         { CTL_DIR,      NET_IPV6_ICMP,          "icmp",         bin_net_ipv6_icmp_table },
560         { CTL_INT,      NET_IPV6_BINDV6ONLY,            "bindv6only" },
561         { CTL_INT,      NET_IPV6_IP6FRAG_HIGH_THRESH,   "ip6frag_high_thresh" },
562         { CTL_INT,      NET_IPV6_IP6FRAG_LOW_THRESH,    "ip6frag_low_thresh" },
563         { CTL_INT,      NET_IPV6_IP6FRAG_TIME,          "ip6frag_time" },
564         { CTL_INT,      NET_IPV6_IP6FRAG_SECRET_INTERVAL,       "ip6frag_secret_interval" },
565         { CTL_INT,      NET_IPV6_MLD_MAX_MSF,           "mld_max_msf" },
566         { CTL_INT,      2088 /* IPQ_QMAX */,            "ip6_queue_maxlen" },
567         {}
568 };
569 
570 static const struct bin_table bin_net_x25_table[] = {
571         { CTL_INT,      NET_X25_RESTART_REQUEST_TIMEOUT,        "restart_request_timeout" },
572         { CTL_INT,      NET_X25_CALL_REQUEST_TIMEOUT,           "call_request_timeout" },
573         { CTL_INT,      NET_X25_RESET_REQUEST_TIMEOUT,  "reset_request_timeout" },
574         { CTL_INT,      NET_X25_CLEAR_REQUEST_TIMEOUT,  "clear_request_timeout" },
575         { CTL_INT,      NET_X25_ACK_HOLD_BACK_TIMEOUT,  "acknowledgement_hold_back_timeout" },
576         { CTL_INT,      NET_X25_FORWARD,                        "x25_forward" },
577         {}
578 };
579 
580 static const struct bin_table bin_net_tr_table[] = {
581         { CTL_INT,      NET_TR_RIF_TIMEOUT,     "rif_timeout" },
582         {}
583 };
584 
585 
586 static const struct bin_table bin_net_decnet_conf_vars[] = {
587         { CTL_INT,      NET_DECNET_CONF_DEV_FORWARDING, "forwarding" },
588         { CTL_INT,      NET_DECNET_CONF_DEV_PRIORITY,   "priority" },
589         { CTL_INT,      NET_DECNET_CONF_DEV_T2,         "t2" },
590         { CTL_INT,      NET_DECNET_CONF_DEV_T3,         "t3" },
591         {}
592 };
593 
594 static const struct bin_table bin_net_decnet_conf[] = {
595         { CTL_DIR, NET_DECNET_CONF_ETHER,    "ethernet", bin_net_decnet_conf_vars },
596         { CTL_DIR, NET_DECNET_CONF_GRE,      "ipgre",    bin_net_decnet_conf_vars },
597         { CTL_DIR, NET_DECNET_CONF_X25,      "x25",      bin_net_decnet_conf_vars },
598         { CTL_DIR, NET_DECNET_CONF_PPP,      "ppp",      bin_net_decnet_conf_vars },
599         { CTL_DIR, NET_DECNET_CONF_DDCMP,    "ddcmp",    bin_net_decnet_conf_vars },
600         { CTL_DIR, NET_DECNET_CONF_LOOPBACK, "loopback", bin_net_decnet_conf_vars },
601         { CTL_DIR, 0,                        NULL,       bin_net_decnet_conf_vars },
602         {}
603 };
604 
605 static const struct bin_table bin_net_decnet_table[] = {
606         { CTL_DIR,      NET_DECNET_CONF,                "conf", bin_net_decnet_conf },
607         { CTL_DNADR,    NET_DECNET_NODE_ADDRESS,        "node_address" },
608         { CTL_STR,      NET_DECNET_NODE_NAME,           "node_name" },
609         { CTL_STR,      NET_DECNET_DEFAULT_DEVICE,      "default_device" },
610         { CTL_INT,      NET_DECNET_TIME_WAIT,           "time_wait" },
611         { CTL_INT,      NET_DECNET_DN_COUNT,            "dn_count" },
612         { CTL_INT,      NET_DECNET_DI_COUNT,            "di_count" },
613         { CTL_INT,      NET_DECNET_DR_COUNT,            "dr_count" },
614         { CTL_INT,      NET_DECNET_DST_GC_INTERVAL,     "dst_gc_interval" },
615         { CTL_INT,      NET_DECNET_NO_FC_MAX_CWND,      "no_fc_max_cwnd" },
616         { CTL_INT,      NET_DECNET_MEM,         "decnet_mem" },
617         { CTL_INT,      NET_DECNET_RMEM,                "decnet_rmem" },
618         { CTL_INT,      NET_DECNET_WMEM,                "decnet_wmem" },
619         { CTL_INT,      NET_DECNET_DEBUG_LEVEL, "debug" },
620         {}
621 };
622 
623 static const struct bin_table bin_net_sctp_table[] = {
624         { CTL_INT,      NET_SCTP_RTO_INITIAL,           "rto_initial" },
625         { CTL_INT,      NET_SCTP_RTO_MIN,               "rto_min" },
626         { CTL_INT,      NET_SCTP_RTO_MAX,               "rto_max" },
627         { CTL_INT,      NET_SCTP_RTO_ALPHA,             "rto_alpha_exp_divisor" },
628         { CTL_INT,      NET_SCTP_RTO_BETA,              "rto_beta_exp_divisor" },
629         { CTL_INT,      NET_SCTP_VALID_COOKIE_LIFE,     "valid_cookie_life" },
630         { CTL_INT,      NET_SCTP_ASSOCIATION_MAX_RETRANS,       "association_max_retrans" },
631         { CTL_INT,      NET_SCTP_PATH_MAX_RETRANS,      "path_max_retrans" },
632         { CTL_INT,      NET_SCTP_MAX_INIT_RETRANSMITS,  "max_init_retransmits" },
633         { CTL_INT,      NET_SCTP_HB_INTERVAL,           "hb_interval" },
634         { CTL_INT,      NET_SCTP_PRESERVE_ENABLE,       "cookie_preserve_enable" },
635         { CTL_INT,      NET_SCTP_MAX_BURST,             "max_burst" },
636         { CTL_INT,      NET_SCTP_ADDIP_ENABLE,          "addip_enable" },
637         { CTL_INT,      NET_SCTP_PRSCTP_ENABLE,         "prsctp_enable" },
638         { CTL_INT,      NET_SCTP_SNDBUF_POLICY,         "sndbuf_policy" },
639         { CTL_INT,      NET_SCTP_SACK_TIMEOUT,          "sack_timeout" },
640         { CTL_INT,      NET_SCTP_RCVBUF_POLICY,         "rcvbuf_policy" },
641         {}
642 };
643 
644 static const struct bin_table bin_net_llc_llc2_timeout_table[] = {
645         { CTL_INT,      NET_LLC2_ACK_TIMEOUT,   "ack" },
646         { CTL_INT,      NET_LLC2_P_TIMEOUT,     "p" },
647         { CTL_INT,      NET_LLC2_REJ_TIMEOUT,   "rej" },
648         { CTL_INT,      NET_LLC2_BUSY_TIMEOUT,  "busy" },
649         {}
650 };
651 
652 static const struct bin_table bin_net_llc_station_table[] = {
653         { CTL_INT,      NET_LLC_STATION_ACK_TIMEOUT,    "ack_timeout" },
654         {}
655 };
656 
657 static const struct bin_table bin_net_llc_llc2_table[] = {
658         { CTL_DIR,      NET_LLC2,               "timeout",      bin_net_llc_llc2_timeout_table },
659         {}
660 };
661 
662 static const struct bin_table bin_net_llc_table[] = {
663         { CTL_DIR,      NET_LLC2,               "llc2",         bin_net_llc_llc2_table },
664         { CTL_DIR,      NET_LLC_STATION,        "station",      bin_net_llc_station_table },
665         {}
666 };
667 
668 static const struct bin_table bin_net_netfilter_table[] = {
669         { CTL_INT,      NET_NF_CONNTRACK_MAX,                   "nf_conntrack_max" },
670         /* NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT "nf_conntrack_tcp_timeout_syn_sent" no longer used */
671         /* NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV "nf_conntrack_tcp_timeout_syn_recv" no longer used */
672         /* NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED "nf_conntrack_tcp_timeout_established" no longer used */
673         /* NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT "nf_conntrack_tcp_timeout_fin_wait" no longer used */
674         /* NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT "nf_conntrack_tcp_timeout_close_wait" no longer used */
675         /* NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK "nf_conntrack_tcp_timeout_last_ack" no longer used */
676         /* NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT "nf_conntrack_tcp_timeout_time_wait" no longer used */
677         /* NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE "nf_conntrack_tcp_timeout_close" no longer used */
678         /* NET_NF_CONNTRACK_UDP_TIMEOUT "nf_conntrack_udp_timeout" no longer used */
679         /* NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM "nf_conntrack_udp_timeout_stream" no longer used */
680         /* NET_NF_CONNTRACK_ICMP_TIMEOUT "nf_conntrack_icmp_timeout" no longer used */
681         /* NET_NF_CONNTRACK_GENERIC_TIMEOUT "nf_conntrack_generic_timeout" no longer used */
682         { CTL_INT,      NET_NF_CONNTRACK_BUCKETS,               "nf_conntrack_buckets" },
683         { CTL_INT,      NET_NF_CONNTRACK_LOG_INVALID,           "nf_conntrack_log_invalid" },
684         /* NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS "nf_conntrack_tcp_timeout_max_retrans" no longer used */
685         { CTL_INT,      NET_NF_CONNTRACK_TCP_LOOSE,             "nf_conntrack_tcp_loose" },
686         { CTL_INT,      NET_NF_CONNTRACK_TCP_BE_LIBERAL,        "nf_conntrack_tcp_be_liberal" },
687         { CTL_INT,      NET_NF_CONNTRACK_TCP_MAX_RETRANS,       "nf_conntrack_tcp_max_retrans" },
688         /* NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED "nf_conntrack_sctp_timeout_closed" no longer used */
689         /* NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT "nf_conntrack_sctp_timeout_cookie_wait" no longer used */
690         /* NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED "nf_conntrack_sctp_timeout_cookie_echoed" no longer used */
691         /* NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED "nf_conntrack_sctp_timeout_established" no longer used */
692         /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT "nf_conntrack_sctp_timeout_shutdown_sent" no longer used */
693         /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD "nf_conntrack_sctp_timeout_shutdown_recd" no longer used */
694         /* NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT "nf_conntrack_sctp_timeout_shutdown_ack_sent" no longer used */
695         { CTL_INT,      NET_NF_CONNTRACK_COUNT,                 "nf_conntrack_count" },
696         /* NET_NF_CONNTRACK_ICMPV6_TIMEOUT "nf_conntrack_icmpv6_timeout" no longer used */
697         /* NET_NF_CONNTRACK_FRAG6_TIMEOUT "nf_conntrack_frag6_timeout" no longer used */
698         { CTL_INT,      NET_NF_CONNTRACK_FRAG6_LOW_THRESH,      "nf_conntrack_frag6_low_thresh" },
699         { CTL_INT,      NET_NF_CONNTRACK_FRAG6_HIGH_THRESH,     "nf_conntrack_frag6_high_thresh" },
700         { CTL_INT,      NET_NF_CONNTRACK_CHECKSUM,              "nf_conntrack_checksum" },
701 
702         {}
703 };
704 
705 static const struct bin_table bin_net_irda_table[] = {
706         { CTL_INT,      NET_IRDA_DISCOVERY,             "discovery" },
707         { CTL_STR,      NET_IRDA_DEVNAME,               "devname" },
708         { CTL_INT,      NET_IRDA_DEBUG,                 "debug" },
709         { CTL_INT,      NET_IRDA_FAST_POLL,             "fast_poll_increase" },
710         { CTL_INT,      NET_IRDA_DISCOVERY_SLOTS,       "discovery_slots" },
711         { CTL_INT,      NET_IRDA_DISCOVERY_TIMEOUT,     "discovery_timeout" },
712         { CTL_INT,      NET_IRDA_SLOT_TIMEOUT,          "slot_timeout" },
713         { CTL_INT,      NET_IRDA_MAX_BAUD_RATE,         "max_baud_rate" },
714         { CTL_INT,      NET_IRDA_MIN_TX_TURN_TIME,      "min_tx_turn_time" },
715         { CTL_INT,      NET_IRDA_MAX_TX_DATA_SIZE,      "max_tx_data_size" },
716         { CTL_INT,      NET_IRDA_MAX_TX_WINDOW,         "max_tx_window" },
717         { CTL_INT,      NET_IRDA_MAX_NOREPLY_TIME,      "max_noreply_time" },
718         { CTL_INT,      NET_IRDA_WARN_NOREPLY_TIME,     "warn_noreply_time" },
719         { CTL_INT,      NET_IRDA_LAP_KEEPALIVE_TIME,    "lap_keepalive_time" },
720         {}
721 };
722 
723 static const struct bin_table bin_net_table[] = {
724         { CTL_DIR,      NET_CORE,               "core",         bin_net_core_table },
725         /* NET_ETHER not used */
726         /* NET_802 not used */
727         { CTL_DIR,      NET_UNIX,               "unix",         bin_net_unix_table },
728         { CTL_DIR,      NET_IPV4,               "ipv4",         bin_net_ipv4_table },
729         { CTL_DIR,      NET_IPX,                "ipx",          bin_net_ipx_table },
730         { CTL_DIR,      NET_ATALK,              "appletalk",    bin_net_atalk_table },
731         { CTL_DIR,      NET_NETROM,             "netrom",       bin_net_netrom_table },
732         { CTL_DIR,      NET_AX25,               "ax25",         bin_net_ax25_table },
733         /*  NET_BRIDGE "bridge" no longer used */
734         { CTL_DIR,      NET_ROSE,               "rose",         bin_net_rose_table },
735         { CTL_DIR,      NET_IPV6,               "ipv6",         bin_net_ipv6_table },
736         { CTL_DIR,      NET_X25,                "x25",          bin_net_x25_table },
737         { CTL_DIR,      NET_TR,                 "token-ring",   bin_net_tr_table },
738         { CTL_DIR,      NET_DECNET,             "decnet",       bin_net_decnet_table },
739         /*  NET_ECONET not used */
740         { CTL_DIR,      NET_SCTP,               "sctp",         bin_net_sctp_table },
741         { CTL_DIR,      NET_LLC,                "llc",          bin_net_llc_table },
742         { CTL_DIR,      NET_NETFILTER,          "netfilter",    bin_net_netfilter_table },
743         /* NET_DCCP "dccp" no longer used */
744         { CTL_DIR,      NET_IRDA,               "irda",         bin_net_irda_table },
745         { CTL_INT,      2089,                   "nf_conntrack_max" },
746         {}
747 };
748 
749 static const struct bin_table bin_fs_quota_table[] = {
750         { CTL_INT,      FS_DQ_LOOKUPS,          "lookups" },
751         { CTL_INT,      FS_DQ_DROPS,            "drops" },
752         { CTL_INT,      FS_DQ_READS,            "reads" },
753         { CTL_INT,      FS_DQ_WRITES,           "writes" },
754         { CTL_INT,      FS_DQ_CACHE_HITS,       "cache_hits" },
755         { CTL_INT,      FS_DQ_ALLOCATED,        "allocated_dquots" },
756         { CTL_INT,      FS_DQ_FREE,             "free_dquots" },
757         { CTL_INT,      FS_DQ_SYNCS,            "syncs" },
758         { CTL_INT,      FS_DQ_WARNINGS,         "warnings" },
759         {}
760 };
761 
762 static const struct bin_table bin_fs_xfs_table[] = {
763         { CTL_INT,      XFS_SGID_INHERIT,       "irix_sgid_inherit" },
764         { CTL_INT,      XFS_SYMLINK_MODE,       "irix_symlink_mode" },
765         { CTL_INT,      XFS_PANIC_MASK,         "panic_mask" },
766 
767         { CTL_INT,      XFS_ERRLEVEL,           "error_level" },
768         { CTL_INT,      XFS_SYNCD_TIMER,        "xfssyncd_centisecs" },
769         { CTL_INT,      XFS_INHERIT_SYNC,       "inherit_sync" },
770         { CTL_INT,      XFS_INHERIT_NODUMP,     "inherit_nodump" },
771         { CTL_INT,      XFS_INHERIT_NOATIME,    "inherit_noatime" },
772         { CTL_INT,      XFS_BUF_TIMER,          "xfsbufd_centisecs" },
773         { CTL_INT,      XFS_BUF_AGE,            "age_buffer_centisecs" },
774         { CTL_INT,      XFS_INHERIT_NOSYM,      "inherit_nosymlinks" },
775         { CTL_INT,      XFS_ROTORSTEP,  "rotorstep" },
776         { CTL_INT,      XFS_INHERIT_NODFRG,     "inherit_nodefrag" },
777         { CTL_INT,      XFS_FILESTREAM_TIMER,   "filestream_centisecs" },
778         { CTL_INT,      XFS_STATS_CLEAR,        "stats_clear" },
779         {}
780 };
781 
782 static const struct bin_table bin_fs_ocfs2_nm_table[] = {
783         { CTL_STR,      1, "hb_ctl_path" },
784         {}
785 };
786 
787 static const struct bin_table bin_fs_ocfs2_table[] = {
788         { CTL_DIR,      1,      "nm",   bin_fs_ocfs2_nm_table },
789         {}
790 };
791 
792 static const struct bin_table bin_inotify_table[] = {
793         { CTL_INT,      INOTIFY_MAX_USER_INSTANCES,     "max_user_instances" },
794         { CTL_INT,      INOTIFY_MAX_USER_WATCHES,       "max_user_watches" },
795         { CTL_INT,      INOTIFY_MAX_QUEUED_EVENTS,      "max_queued_events" },
796         {}
797 };
798 
799 static const struct bin_table bin_fs_table[] = {
800         { CTL_INT,      FS_NRINODE,             "inode-nr" },
801         { CTL_INT,      FS_STATINODE,           "inode-state" },
802         /* FS_MAXINODE unused */
803         /* FS_NRDQUOT unused */
804         /* FS_MAXDQUOT unused */
805         /* FS_NRFILE "file-nr" no longer used */
806         { CTL_INT,      FS_MAXFILE,             "file-max" },
807         { CTL_INT,      FS_DENTRY,              "dentry-state" },
808         /* FS_NRSUPER unused */
809         /* FS_MAXUPSER unused */
810         { CTL_INT,      FS_OVERFLOWUID,         "overflowuid" },
811         { CTL_INT,      FS_OVERFLOWGID,         "overflowgid" },
812         { CTL_INT,      FS_LEASES,              "leases-enable" },
813         { CTL_INT,      FS_DIR_NOTIFY,          "dir-notify-enable" },
814         { CTL_INT,      FS_LEASE_TIME,          "lease-break-time" },
815         { CTL_DIR,      FS_DQSTATS,             "quota",        bin_fs_quota_table },
816         { CTL_DIR,      FS_XFS,                 "xfs",          bin_fs_xfs_table },
817         { CTL_ULONG,    FS_AIO_NR,              "aio-nr" },
818         { CTL_ULONG,    FS_AIO_MAX_NR,          "aio-max-nr" },
819         { CTL_DIR,      FS_INOTIFY,             "inotify",      bin_inotify_table },
820         { CTL_DIR,      FS_OCFS2,               "ocfs2",        bin_fs_ocfs2_table },
821         { CTL_INT,      KERN_SETUID_DUMPABLE,   "suid_dumpable" },
822         {}
823 };
824 
825 static const struct bin_table bin_ipmi_table[] = {
826         { CTL_INT,      DEV_IPMI_POWEROFF_POWERCYCLE,   "poweroff_powercycle" },
827         {}
828 };
829 
830 static const struct bin_table bin_mac_hid_files[] = {
831         /* DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES unused */
832         /* DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES unused */
833         { CTL_INT,      DEV_MAC_HID_MOUSE_BUTTON_EMULATION,     "mouse_button_emulation" },
834         { CTL_INT,      DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE,      "mouse_button2_keycode" },
835         { CTL_INT,      DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE,      "mouse_button3_keycode" },
836         /* DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES unused */
837         {}
838 };
839 
840 static const struct bin_table bin_raid_table[] = {
841         { CTL_INT,      DEV_RAID_SPEED_LIMIT_MIN,       "speed_limit_min" },
842         { CTL_INT,      DEV_RAID_SPEED_LIMIT_MAX,       "speed_limit_max" },
843         {}
844 };
845 
846 static const struct bin_table bin_scsi_table[] = {
847         { CTL_INT, DEV_SCSI_LOGGING_LEVEL, "logging_level" },
848         {}
849 };
850 
851 static const struct bin_table bin_dev_table[] = {
852         /* DEV_CDROM    "cdrom" no longer used */
853         /* DEV_HWMON unused */
854         /* DEV_PARPORT  "parport" no longer used */
855         { CTL_DIR,      DEV_RAID,       "raid",         bin_raid_table },
856         { CTL_DIR,      DEV_MAC_HID,    "mac_hid",      bin_mac_hid_files },
857         { CTL_DIR,      DEV_SCSI,       "scsi",         bin_scsi_table },
858         { CTL_DIR,      DEV_IPMI,       "ipmi",         bin_ipmi_table },
859         {}
860 };
861 
862 static const struct bin_table bin_bus_isa_table[] = {
863         { CTL_INT,      BUS_ISA_MEM_BASE,       "membase" },
864         { CTL_INT,      BUS_ISA_PORT_BASE,      "portbase" },
865         { CTL_INT,      BUS_ISA_PORT_SHIFT,     "portshift" },
866         {}
867 };
868 
869 static const struct bin_table bin_bus_table[] = {
870         { CTL_DIR,      CTL_BUS_ISA,    "isa",  bin_bus_isa_table },
871         {}
872 };
873 
874 
875 static const struct bin_table bin_s390dbf_table[] = {
876         { CTL_INT,      5678 /* CTL_S390DBF_STOPPABLE */, "debug_stoppable" },
877         { CTL_INT,      5679 /* CTL_S390DBF_ACTIVE */,    "debug_active" },
878         {}
879 };
880 
881 static const struct bin_table bin_sunrpc_table[] = {
882         /* CTL_RPCDEBUG "rpc_debug"  no longer used */
883         /* CTL_NFSDEBUG "nfs_debug"  no longer used */
884         /* CTL_NFSDDEBUG "nfsd_debug" no longer used  */
885         /* CTL_NLMDEBUG "nlm_debug" no longer used */
886 
887         { CTL_INT,      CTL_SLOTTABLE_UDP,      "udp_slot_table_entries" },
888         { CTL_INT,      CTL_SLOTTABLE_TCP,      "tcp_slot_table_entries" },
889         { CTL_INT,      CTL_MIN_RESVPORT,       "min_resvport" },
890         { CTL_INT,      CTL_MAX_RESVPORT,       "max_resvport" },
891         {}
892 };
893 
894 static const struct bin_table bin_pm_table[] = {
895         /* frv specific */
896         /* 1 == CTL_PM_SUSPEND  "suspend"  no longer used" */
897         { CTL_INT,      2 /* CTL_PM_CMODE */,           "cmode" },
898         { CTL_INT,      3 /* CTL_PM_P0 */,              "p0" },
899         { CTL_INT,      4 /* CTL_PM_CM */,              "cm" },
900         {}
901 };
902 
903 static const struct bin_table bin_root_table[] = {
904         { CTL_DIR,      CTL_KERN,       "kernel",       bin_kern_table },
905         { CTL_DIR,      CTL_VM,         "vm",           bin_vm_table },
906         { CTL_DIR,      CTL_NET,        "net",          bin_net_table },
907         /* CTL_PROC not used */
908         { CTL_DIR,      CTL_FS,         "fs",           bin_fs_table },
909         /* CTL_DEBUG "debug" no longer used */
910         { CTL_DIR,      CTL_DEV,        "dev",          bin_dev_table },
911         { CTL_DIR,      CTL_BUS,        "bus",          bin_bus_table },
912         { CTL_DIR,      CTL_ABI,        "abi" },
913         /* CTL_CPU not used */
914         /* CTL_ARLAN "arlan" no longer used */
915         { CTL_DIR,      CTL_S390DBF,    "s390dbf",      bin_s390dbf_table },
916         { CTL_DIR,      CTL_SUNRPC,     "sunrpc",       bin_sunrpc_table },
917         { CTL_DIR,      CTL_PM,         "pm",           bin_pm_table },
918         {}
919 };
920 
921 static ssize_t bin_dir(struct file *file,
922         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
923 {
924         return -ENOTDIR;
925 }
926 
927 
928 static ssize_t bin_string(struct file *file,
929         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
930 {
931         ssize_t result, copied = 0;
932 
933         if (oldval && oldlen) {
934                 char __user *lastp;
935                 loff_t pos = 0;
936                 int ch;
937 
938                 result = vfs_read(file, oldval, oldlen, &pos);
939                 if (result < 0)
940                         goto out;
941 
942                 copied = result;
943                 lastp = oldval + copied - 1;
944 
945                 result = -EFAULT;
946                 if (get_user(ch, lastp))
947                         goto out;
948 
949                 /* Trim off the trailing newline */
950                 if (ch == '\n') {
951                         result = -EFAULT;
952                         if (put_user('\0', lastp))
953                                 goto out;
954                         copied -= 1;
955                 }
956         }
957 
958         if (newval && newlen) {
959                 loff_t pos = 0;
960 
961                 result = vfs_write(file, newval, newlen, &pos);
962                 if (result < 0)
963                         goto out;
964         }
965 
966         result = copied;
967 out:
968         return result;
969 }
970 
971 static ssize_t bin_intvec(struct file *file,
972         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
973 {
974         mm_segment_t old_fs = get_fs();
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                 loff_t pos = 0;
988                 char *str, *end;
989                 int i;
990 
991                 set_fs(KERNEL_DS);
992                 result = vfs_read(file, buffer, BUFSZ - 1, &pos);
993                 set_fs(old_fs);
994                 if (result < 0)
995                         goto out_kfree;
996 
997                 str = buffer;
998                 end = str + result;
999                 *end++ = '\0';
1000                 for (i = 0; i < length; i++) {
1001                         unsigned long value;
1002 
1003                         value = simple_strtoul(str, &str, 10);
1004                         while (isspace(*str))
1005                                 str++;
1006                         
1007                         result = -EFAULT;
1008                         if (put_user(value, vec + i))
1009                                 goto out_kfree;
1010 
1011                         copied += sizeof(*vec);
1012                         if (!isdigit(*str))
1013                                 break;
1014                 }
1015         }
1016 
1017         if (newval && newlen) {
1018                 unsigned __user *vec = newval;
1019                 size_t length = newlen / sizeof(*vec);
1020                 loff_t pos = 0;
1021                 char *str, *end;
1022                 int i;
1023 
1024                 str = buffer;
1025                 end = str + BUFSZ;
1026                 for (i = 0; i < length; i++) {
1027                         unsigned long value;
1028 
1029                         result = -EFAULT;
1030                         if (get_user(value, vec + i))
1031                                 goto out_kfree;
1032 
1033                         str += snprintf(str, end - str, "%lu\t", value);
1034                 }
1035 
1036                 set_fs(KERNEL_DS);
1037                 result = vfs_write(file, buffer, str - buffer, &pos);
1038                 set_fs(old_fs);
1039                 if (result < 0)
1040                         goto out_kfree;
1041         }
1042         result = copied;
1043 out_kfree:
1044         kfree(buffer);
1045 out:
1046         return result;
1047 }
1048 
1049 static ssize_t bin_ulongvec(struct file *file,
1050         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1051 {
1052         mm_segment_t old_fs = get_fs();
1053         ssize_t copied = 0;
1054         char *buffer;
1055         ssize_t result;
1056 
1057         result = -ENOMEM;
1058         buffer = kmalloc(BUFSZ, GFP_KERNEL);
1059         if (!buffer)
1060                 goto out;
1061 
1062         if (oldval && oldlen) {
1063                 unsigned long __user *vec = oldval;
1064                 size_t length = oldlen / sizeof(*vec);
1065                 loff_t pos = 0;
1066                 char *str, *end;
1067                 int i;
1068 
1069                 set_fs(KERNEL_DS);
1070                 result = vfs_read(file, buffer, BUFSZ - 1, &pos);
1071                 set_fs(old_fs);
1072                 if (result < 0)
1073                         goto out_kfree;
1074 
1075                 str = buffer;
1076                 end = str + result;
1077                 *end++ = '\0';
1078                 for (i = 0; i < length; i++) {
1079                         unsigned long value;
1080 
1081                         value = simple_strtoul(str, &str, 10);
1082                         while (isspace(*str))
1083                                 str++;
1084                         
1085                         result = -EFAULT;
1086                         if (put_user(value, vec + i))
1087                                 goto out_kfree;
1088 
1089                         copied += sizeof(*vec);
1090                         if (!isdigit(*str))
1091                                 break;
1092                 }
1093         }
1094 
1095         if (newval && newlen) {
1096                 unsigned long __user *vec = newval;
1097                 size_t length = newlen / sizeof(*vec);
1098                 loff_t pos = 0;
1099                 char *str, *end;
1100                 int i;
1101 
1102                 str = buffer;
1103                 end = str + BUFSZ;
1104                 for (i = 0; i < length; i++) {
1105                         unsigned long value;
1106 
1107                         result = -EFAULT;
1108                         if (get_user(value, vec + i))
1109                                 goto out_kfree;
1110 
1111                         str += snprintf(str, end - str, "%lu\t", value);
1112                 }
1113 
1114                 set_fs(KERNEL_DS);
1115                 result = vfs_write(file, buffer, str - buffer, &pos);
1116                 set_fs(old_fs);
1117                 if (result < 0)
1118                         goto out_kfree;
1119         }
1120         result = copied;
1121 out_kfree:
1122         kfree(buffer);
1123 out:
1124         return result;
1125 }
1126 
1127 static ssize_t bin_uuid(struct file *file,
1128         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1129 {
1130         mm_segment_t old_fs = get_fs();
1131         ssize_t result, copied = 0;
1132 
1133         /* Only supports reads */
1134         if (oldval && oldlen) {
1135                 loff_t pos = 0;
1136                 char buf[40], *str = buf;
1137                 unsigned char uuid[16];
1138                 int i;
1139 
1140                 set_fs(KERNEL_DS);
1141                 result = vfs_read(file, buf, sizeof(buf) - 1, &pos);
1142                 set_fs(old_fs);
1143                 if (result < 0)
1144                         goto out;
1145 
1146                 buf[result] = '\0';
1147 
1148                 /* Convert the uuid to from a string to binary */
1149                 for (i = 0; i < 16; i++) {
1150                         result = -EIO;
1151                         if (!isxdigit(str[0]) || !isxdigit(str[1]))
1152                                 goto out;
1153 
1154                         uuid[i] = (hex_to_bin(str[0]) << 4) |
1155                                         hex_to_bin(str[1]);
1156                         str += 2;
1157                         if (*str == '-')
1158                                 str++;
1159                 }
1160 
1161                 if (oldlen > 16)
1162                         oldlen = 16;
1163 
1164                 result = -EFAULT;
1165                 if (copy_to_user(oldval, uuid, oldlen))
1166                         goto out;
1167 
1168                 copied = oldlen;
1169         }
1170         result = copied;
1171 out:
1172         return result;
1173 }
1174 
1175 static ssize_t bin_dn_node_address(struct file *file,
1176         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1177 {
1178         mm_segment_t old_fs = get_fs();
1179         ssize_t result, copied = 0;
1180 
1181         if (oldval && oldlen) {
1182                 loff_t pos = 0;
1183                 char buf[15], *nodep;
1184                 unsigned long area, node;
1185                 __le16 dnaddr;
1186 
1187                 set_fs(KERNEL_DS);
1188                 result = vfs_read(file, buf, sizeof(buf) - 1, &pos);
1189                 set_fs(old_fs);
1190                 if (result < 0)
1191                         goto out;
1192 
1193                 buf[result] = '\0';
1194 
1195                 /* Convert the decnet address to binary */
1196                 result = -EIO;
1197                 nodep = strchr(buf, '.');
1198                 if (!nodep)
1199                         goto out;
1200                 ++nodep;
1201 
1202                 area = simple_strtoul(buf, NULL, 10);
1203                 node = simple_strtoul(nodep, NULL, 10);
1204 
1205                 result = -EIO;
1206                 if ((area > 63)||(node > 1023))
1207                         goto out;
1208 
1209                 dnaddr = cpu_to_le16((area << 10) | node);
1210 
1211                 result = -EFAULT;
1212                 if (put_user(dnaddr, (__le16 __user *)oldval))
1213                         goto out;
1214 
1215                 copied = sizeof(dnaddr);
1216         }
1217 
1218         if (newval && newlen) {
1219                 loff_t pos = 0;
1220                 __le16 dnaddr;
1221                 char buf[15];
1222                 int len;
1223 
1224                 result = -EINVAL;
1225                 if (newlen != sizeof(dnaddr))
1226                         goto out;
1227 
1228                 result = -EFAULT;
1229                 if (get_user(dnaddr, (__le16 __user *)newval))
1230                         goto out;
1231 
1232                 len = snprintf(buf, sizeof(buf), "%hu.%hu",
1233                                 le16_to_cpu(dnaddr) >> 10,
1234                                 le16_to_cpu(dnaddr) & 0x3ff);
1235 
1236                 set_fs(KERNEL_DS);
1237                 result = vfs_write(file, buf, len, &pos);
1238                 set_fs(old_fs);
1239                 if (result < 0)
1240                         goto out;
1241         }
1242 
1243         result = copied;
1244 out:
1245         return result;
1246 }
1247 
1248 static const struct bin_table *get_sysctl(const int *name, int nlen, char *path)
1249 {
1250         const struct bin_table *table = &bin_root_table[0];
1251         int ctl_name;
1252 
1253         /* The binary sysctl tables have a small maximum depth so
1254          * there is no danger of overflowing our path as it PATH_MAX
1255          * bytes long.
1256          */
1257         memcpy(path, "sys/", 4);
1258         path += 4;
1259 
1260 repeat:
1261         if (!nlen)
1262                 return ERR_PTR(-ENOTDIR);
1263         ctl_name = *name;
1264         name++;
1265         nlen--;
1266         for ( ; table->convert; table++) {
1267                 int len = 0;
1268 
1269                 /*
1270                  * For a wild card entry map from ifindex to network
1271                  * device name.
1272                  */
1273                 if (!table->ctl_name) {
1274 #ifdef CONFIG_NET
1275                         struct net *net = current->nsproxy->net_ns;
1276                         struct net_device *dev;
1277                         dev = dev_get_by_index(net, ctl_name);
1278                         if (dev) {
1279                                 len = strlen(dev->name);
1280                                 memcpy(path, dev->name, len);
1281                                 dev_put(dev);
1282                         }
1283 #endif
1284                 /* Use the well known sysctl number to proc name mapping */
1285                 } else if (ctl_name == table->ctl_name) {
1286                         len = strlen(table->procname);
1287                         memcpy(path, table->procname, len);
1288                 }
1289                 if (len) {
1290                         path += len;
1291                         if (table->child) {
1292                                 *path++ = '/';
1293                                 table = table->child;
1294                                 goto repeat;
1295                         }
1296                         *path = '\0';
1297                         return table;
1298                 }
1299         }
1300         return ERR_PTR(-ENOTDIR);
1301 }
1302 
1303 static char *sysctl_getname(const int *name, int nlen, const struct bin_table **tablep)
1304 {
1305         char *tmp, *result;
1306 
1307         result = ERR_PTR(-ENOMEM);
1308         tmp = __getname();
1309         if (tmp) {
1310                 const struct bin_table *table = get_sysctl(name, nlen, tmp);
1311                 result = tmp;
1312                 *tablep = table;
1313                 if (IS_ERR(table)) {
1314                         __putname(tmp);
1315                         result = ERR_CAST(table);
1316                 }
1317         }
1318         return result;
1319 }
1320 
1321 static ssize_t binary_sysctl(const int *name, int nlen,
1322         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1323 {
1324         const struct bin_table *table = NULL;
1325         struct vfsmount *mnt;
1326         struct file *file;
1327         ssize_t result;
1328         char *pathname;
1329         int flags;
1330 
1331         pathname = sysctl_getname(name, nlen, &table);
1332         result = PTR_ERR(pathname);
1333         if (IS_ERR(pathname))
1334                 goto out;
1335 
1336         /* How should the sysctl be accessed? */
1337         if (oldval && oldlen && newval && newlen) {
1338                 flags = O_RDWR;
1339         } else if (newval && newlen) {
1340                 flags = O_WRONLY;
1341         } else if (oldval && oldlen) {
1342                 flags = O_RDONLY;
1343         } else {
1344                 result = 0;
1345                 goto out_putname;
1346         }
1347 
1348         mnt = current->nsproxy->pid_ns->proc_mnt;
1349         file = file_open_root(mnt->mnt_root, mnt, pathname, flags, 0);
1350         result = PTR_ERR(file);
1351         if (IS_ERR(file))
1352                 goto out_putname;
1353 
1354         result = table->convert(file, oldval, oldlen, newval, newlen);
1355 
1356         fput(file);
1357 out_putname:
1358         __putname(pathname);
1359 out:
1360         return result;
1361 }
1362 
1363 
1364 #else /* CONFIG_SYSCTL_SYSCALL */
1365 
1366 static ssize_t binary_sysctl(const int *name, int nlen,
1367         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1368 {
1369         return -ENOSYS;
1370 }
1371 
1372 #endif /* CONFIG_SYSCTL_SYSCALL */
1373 
1374 
1375 static void deprecated_sysctl_warning(const int *name, int nlen)
1376 {
1377         int i;
1378 
1379         /*
1380          * CTL_KERN/KERN_VERSION is used by older glibc and cannot
1381          * ever go away.
1382          */
1383         if (name[0] == CTL_KERN && name[1] == KERN_VERSION)
1384                 return;
1385 
1386         if (printk_ratelimit()) {
1387                 printk(KERN_INFO
1388                         "warning: process `%s' used the deprecated sysctl "
1389                         "system call with ", current->comm);
1390                 for (i = 0; i < nlen; i++)
1391                         printk("%d.", name[i]);
1392                 printk("\n");
1393         }
1394         return;
1395 }
1396 
1397 #define WARN_ONCE_HASH_BITS 8
1398 #define WARN_ONCE_HASH_SIZE (1<<WARN_ONCE_HASH_BITS)
1399 
1400 static DECLARE_BITMAP(warn_once_bitmap, WARN_ONCE_HASH_SIZE);
1401 
1402 #define FNV32_OFFSET 2166136261U
1403 #define FNV32_PRIME 0x01000193
1404 
1405 /*
1406  * Print each legacy sysctl (approximately) only once.
1407  * To avoid making the tables non-const use a external
1408  * hash-table instead.
1409  * Worst case hash collision: 6, but very rarely.
1410  * NOTE! We don't use the SMP-safe bit tests. We simply
1411  * don't care enough.
1412  */
1413 static void warn_on_bintable(const int *name, int nlen)
1414 {
1415         int i;
1416         u32 hash = FNV32_OFFSET;
1417 
1418         for (i = 0; i < nlen; i++)
1419                 hash = (hash ^ name[i]) * FNV32_PRIME;
1420         hash %= WARN_ONCE_HASH_SIZE;
1421         if (__test_and_set_bit(hash, warn_once_bitmap))
1422                 return;
1423         deprecated_sysctl_warning(name, nlen);
1424 }
1425 
1426 static ssize_t do_sysctl(int __user *args_name, int nlen,
1427         void __user *oldval, size_t oldlen, void __user *newval, size_t newlen)
1428 {
1429         int name[CTL_MAXNAME];
1430         int i;
1431 
1432         /* Check args->nlen. */
1433         if (nlen < 0 || nlen > CTL_MAXNAME)
1434                 return -ENOTDIR;
1435         /* Read in the sysctl name for simplicity */
1436         for (i = 0; i < nlen; i++)
1437                 if (get_user(name[i], args_name + i))
1438                         return -EFAULT;
1439 
1440         warn_on_bintable(name, nlen);
1441 
1442         return binary_sysctl(name, nlen, oldval, oldlen, newval, newlen);
1443 }
1444 
1445 SYSCALL_DEFINE1(sysctl, struct __sysctl_args __user *, args)
1446 {
1447         struct __sysctl_args tmp;
1448         size_t oldlen = 0;
1449         ssize_t result;
1450 
1451         if (copy_from_user(&tmp, args, sizeof(tmp)))
1452                 return -EFAULT;
1453 
1454         if (tmp.oldval && !tmp.oldlenp)
1455                 return -EFAULT;
1456 
1457         if (tmp.oldlenp && get_user(oldlen, tmp.oldlenp))
1458                 return -EFAULT;
1459 
1460         result = do_sysctl(tmp.name, tmp.nlen, tmp.oldval, oldlen,
1461                            tmp.newval, tmp.newlen);
1462 
1463         if (result >= 0) {
1464                 oldlen = result;
1465                 result = 0;
1466         }
1467 
1468         if (tmp.oldlenp && put_user(oldlen, tmp.oldlenp))
1469                 return -EFAULT;
1470 
1471         return result;
1472 }
1473 
1474 
1475 #ifdef CONFIG_COMPAT
1476 #include <asm/compat.h>
1477 
1478 struct compat_sysctl_args {
1479         compat_uptr_t   name;
1480         int             nlen;
1481         compat_uptr_t   oldval;
1482         compat_uptr_t   oldlenp;
1483         compat_uptr_t   newval;
1484         compat_size_t   newlen;
1485         compat_ulong_t  __unused[4];
1486 };
1487 
1488 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args)
1489 {
1490         struct compat_sysctl_args tmp;
1491         compat_size_t __user *compat_oldlenp;
1492         size_t oldlen = 0;
1493         ssize_t result;
1494 
1495         if (copy_from_user(&tmp, args, sizeof(tmp)))
1496                 return -EFAULT;
1497 
1498         if (tmp.oldval && !tmp.oldlenp)
1499                 return -EFAULT;
1500 
1501         compat_oldlenp = compat_ptr(tmp.oldlenp);
1502         if (compat_oldlenp && get_user(oldlen, compat_oldlenp))
1503                 return -EFAULT;
1504 
1505         result = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
1506                            compat_ptr(tmp.oldval), oldlen,
1507                            compat_ptr(tmp.newval), tmp.newlen);
1508 
1509         if (result >= 0) {
1510                 oldlen = result;
1511                 result = 0;
1512         }
1513 
1514         if (compat_oldlenp && put_user(oldlen, compat_oldlenp))
1515                 return -EFAULT;
1516 
1517         return result;
1518 }
1519 
1520 #endif /* CONFIG_COMPAT */
1521 

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