1#include <linux/stat.h> 2#include <linux/sysctl.h> 3#include "../fs/xfs/xfs_sysctl.h" 4#include <linux/sunrpc/debug.h> 5#include <linux/string.h> 6#include <linux/syscalls.h> 7#include <linux/namei.h> 8#include <linux/mount.h> 9#include <linux/fs.h> 10#include <linux/nsproxy.h> 11#include <linux/pid_namespace.h> 12#include <linux/file.h> 13#include <linux/ctype.h> 14#include <linux/netdevice.h> 15#include <linux/kernel.h> 16#include <linux/slab.h> 17#include <linux/compat.h> 18 19#ifdef CONFIG_SYSCTL_SYSCALL 20 21struct bin_table; 22typedef ssize_t bin_convert_t(struct file *file, 23 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen); 24 25static bin_convert_t bin_dir; 26static bin_convert_t bin_string; 27static bin_convert_t bin_intvec; 28static bin_convert_t bin_ulongvec; 29static bin_convert_t bin_uuid; 30static 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 41struct bin_table { 42 bin_convert_t *convert; 43 int ctl_name; 44 const char *procname; 45 const struct bin_table *child; 46}; 47 48static 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 58static const struct bin_table bin_pty_table[] = { 59 { CTL_INT, PTY_MAX, "max" }, 60 { CTL_INT, PTY_NR, "nr" }, 61 {} 62}; 63 64static 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 { CTL_INT, KERN_PANIC_ON_WARN, "panic_on_warn" }, 141 {} 142}; 143 144static const struct bin_table bin_vm_table[] = { 145 { CTL_INT, VM_OVERCOMMIT_MEMORY, "overcommit_memory" }, 146 { CTL_INT, VM_PAGE_CLUSTER, "page-cluster" }, 147 { CTL_INT, VM_DIRTY_BACKGROUND, "dirty_background_ratio" }, 148 { CTL_INT, VM_DIRTY_RATIO, "dirty_ratio" }, 149 /* VM_DIRTY_WB_CS "dirty_writeback_centisecs" no longer used */ 150 /* VM_DIRTY_EXPIRE_CS "dirty_expire_centisecs" no longer used */ 151 /* VM_NR_PDFLUSH_THREADS "nr_pdflush_threads" no longer used */ 152 { CTL_INT, VM_OVERCOMMIT_RATIO, "overcommit_ratio" }, 153 /* VM_PAGEBUF unused */ 154 /* VM_HUGETLB_PAGES "nr_hugepages" no longer used */ 155 { CTL_INT, VM_SWAPPINESS, "swappiness" }, 156 { CTL_INT, VM_LOWMEM_RESERVE_RATIO, "lowmem_reserve_ratio" }, 157 { CTL_INT, VM_MIN_FREE_KBYTES, "min_free_kbytes" }, 158 { CTL_INT, VM_MAX_MAP_COUNT, "max_map_count" }, 159 { CTL_INT, VM_LAPTOP_MODE, "laptop_mode" }, 160 { CTL_INT, VM_BLOCK_DUMP, "block_dump" }, 161 { CTL_INT, VM_HUGETLB_GROUP, "hugetlb_shm_group" }, 162 { CTL_INT, VM_VFS_CACHE_PRESSURE, "vfs_cache_pressure" }, 163 { CTL_INT, VM_LEGACY_VA_LAYOUT, "legacy_va_layout" }, 164 /* VM_SWAP_TOKEN_TIMEOUT unused */ 165 { CTL_INT, VM_DROP_PAGECACHE, "drop_caches" }, 166 { CTL_INT, VM_PERCPU_PAGELIST_FRACTION, "percpu_pagelist_fraction" }, 167 { CTL_INT, VM_ZONE_RECLAIM_MODE, "zone_reclaim_mode" }, 168 { CTL_INT, VM_MIN_UNMAPPED, "min_unmapped_ratio" }, 169 { CTL_INT, VM_PANIC_ON_OOM, "panic_on_oom" }, 170 { CTL_INT, VM_VDSO_ENABLED, "vdso_enabled" }, 171 { CTL_INT, VM_MIN_SLAB, "min_slab_ratio" }, 172 173 {} 174}; 175 176static const struct bin_table bin_net_core_table[] = { 177 { CTL_INT, NET_CORE_WMEM_MAX, "wmem_max" }, 178 { CTL_INT, NET_CORE_RMEM_MAX, "rmem_max" }, 179 { CTL_INT, NET_CORE_WMEM_DEFAULT, "wmem_default" }, 180 { CTL_INT, NET_CORE_RMEM_DEFAULT, "rmem_default" }, 181 /* NET_CORE_DESTROY_DELAY unused */ 182 { CTL_INT, NET_CORE_MAX_BACKLOG, "netdev_max_backlog" }, 183 /* NET_CORE_FASTROUTE unused */ 184 { CTL_INT, NET_CORE_MSG_COST, "message_cost" }, 185 { CTL_INT, NET_CORE_MSG_BURST, "message_burst" }, 186 { CTL_INT, NET_CORE_OPTMEM_MAX, "optmem_max" }, 187 /* NET_CORE_HOT_LIST_LENGTH unused */ 188 /* NET_CORE_DIVERT_VERSION unused */ 189 /* NET_CORE_NO_CONG_THRESH unused */ 190 /* NET_CORE_NO_CONG unused */ 191 /* NET_CORE_LO_CONG unused */ 192 /* NET_CORE_MOD_CONG unused */ 193 { CTL_INT, NET_CORE_DEV_WEIGHT, "dev_weight" }, 194 { CTL_INT, NET_CORE_SOMAXCONN, "somaxconn" }, 195 { CTL_INT, NET_CORE_BUDGET, "netdev_budget" }, 196 { CTL_INT, NET_CORE_AEVENT_ETIME, "xfrm_aevent_etime" }, 197 { CTL_INT, NET_CORE_AEVENT_RSEQTH, "xfrm_aevent_rseqth" }, 198 { CTL_INT, NET_CORE_WARNINGS, "warnings" }, 199 {}, 200}; 201 202static const struct bin_table bin_net_unix_table[] = { 203 /* NET_UNIX_DESTROY_DELAY unused */ 204 /* NET_UNIX_DELETE_DELAY unused */ 205 { CTL_INT, NET_UNIX_MAX_DGRAM_QLEN, "max_dgram_qlen" }, 206 {} 207}; 208 209static const struct bin_table bin_net_ipv4_route_table[] = { 210 { CTL_INT, NET_IPV4_ROUTE_FLUSH, "flush" }, 211 /* NET_IPV4_ROUTE_MIN_DELAY "min_delay" no longer used */ 212 /* NET_IPV4_ROUTE_MAX_DELAY "max_delay" no longer used */ 213 { CTL_INT, NET_IPV4_ROUTE_GC_THRESH, "gc_thresh" }, 214 { CTL_INT, NET_IPV4_ROUTE_MAX_SIZE, "max_size" }, 215 { CTL_INT, NET_IPV4_ROUTE_GC_MIN_INTERVAL, "gc_min_interval" }, 216 { CTL_INT, NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS, "gc_min_interval_ms" }, 217 { CTL_INT, NET_IPV4_ROUTE_GC_TIMEOUT, "gc_timeout" }, 218 /* NET_IPV4_ROUTE_GC_INTERVAL "gc_interval" no longer used */ 219 { CTL_INT, NET_IPV4_ROUTE_REDIRECT_LOAD, "redirect_load" }, 220 { CTL_INT, NET_IPV4_ROUTE_REDIRECT_NUMBER, "redirect_number" }, 221 { CTL_INT, NET_IPV4_ROUTE_REDIRECT_SILENCE, "redirect_silence" }, 222 { CTL_INT, NET_IPV4_ROUTE_ERROR_COST, "error_cost" }, 223 { CTL_INT, NET_IPV4_ROUTE_ERROR_BURST, "error_burst" }, 224 { CTL_INT, NET_IPV4_ROUTE_GC_ELASTICITY, "gc_elasticity" }, 225 { CTL_INT, NET_IPV4_ROUTE_MTU_EXPIRES, "mtu_expires" }, 226 { CTL_INT, NET_IPV4_ROUTE_MIN_PMTU, "min_pmtu" }, 227 { CTL_INT, NET_IPV4_ROUTE_MIN_ADVMSS, "min_adv_mss" }, 228 {} 229}; 230 231static const struct bin_table bin_net_ipv4_conf_vars_table[] = { 232 { CTL_INT, NET_IPV4_CONF_FORWARDING, "forwarding" }, 233 { CTL_INT, NET_IPV4_CONF_MC_FORWARDING, "mc_forwarding" }, 234 235 { CTL_INT, NET_IPV4_CONF_ACCEPT_REDIRECTS, "accept_redirects" }, 236 { CTL_INT, NET_IPV4_CONF_SECURE_REDIRECTS, "secure_redirects" }, 237 { CTL_INT, NET_IPV4_CONF_SEND_REDIRECTS, "send_redirects" }, 238 { CTL_INT, NET_IPV4_CONF_SHARED_MEDIA, "shared_media" }, 239 { CTL_INT, NET_IPV4_CONF_RP_FILTER, "rp_filter" }, 240 { CTL_INT, NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE, "accept_source_route" }, 241 { CTL_INT, NET_IPV4_CONF_PROXY_ARP, "proxy_arp" }, 242 { CTL_INT, NET_IPV4_CONF_MEDIUM_ID, "medium_id" }, 243 { CTL_INT, NET_IPV4_CONF_BOOTP_RELAY, "bootp_relay" }, 244 { CTL_INT, NET_IPV4_CONF_LOG_MARTIANS, "log_martians" }, 245 { CTL_INT, NET_IPV4_CONF_TAG, "tag" }, 246 { CTL_INT, NET_IPV4_CONF_ARPFILTER, "arp_filter" }, 247 { CTL_INT, NET_IPV4_CONF_ARP_ANNOUNCE, "arp_announce" }, 248 { CTL_INT, NET_IPV4_CONF_ARP_IGNORE, "arp_ignore" }, 249 { CTL_INT, NET_IPV4_CONF_ARP_ACCEPT, "arp_accept" }, 250 { CTL_INT, NET_IPV4_CONF_ARP_NOTIFY, "arp_notify" }, 251 252 { CTL_INT, NET_IPV4_CONF_NOXFRM, "disable_xfrm" }, 253 { CTL_INT, NET_IPV4_CONF_NOPOLICY, "disable_policy" }, 254 { CTL_INT, NET_IPV4_CONF_FORCE_IGMP_VERSION, "force_igmp_version" }, 255 { CTL_INT, NET_IPV4_CONF_PROMOTE_SECONDARIES, "promote_secondaries" }, 256 {} 257}; 258 259static const struct bin_table bin_net_ipv4_conf_table[] = { 260 { CTL_DIR, NET_PROTO_CONF_ALL, "all", bin_net_ipv4_conf_vars_table }, 261 { CTL_DIR, NET_PROTO_CONF_DEFAULT, "default", bin_net_ipv4_conf_vars_table }, 262 { CTL_DIR, 0, NULL, bin_net_ipv4_conf_vars_table }, 263 {} 264}; 265 266static const struct bin_table bin_net_neigh_vars_table[] = { 267 { CTL_INT, NET_NEIGH_MCAST_SOLICIT, "mcast_solicit" }, 268 { CTL_INT, NET_NEIGH_UCAST_SOLICIT, "ucast_solicit" }, 269 { CTL_INT, NET_NEIGH_APP_SOLICIT, "app_solicit" }, 270 /* NET_NEIGH_RETRANS_TIME "retrans_time" no longer used */ 271 { CTL_INT, NET_NEIGH_REACHABLE_TIME, "base_reachable_time" }, 272 { CTL_INT, NET_NEIGH_DELAY_PROBE_TIME, "delay_first_probe_time" }, 273 { CTL_INT, NET_NEIGH_GC_STALE_TIME, "gc_stale_time" }, 274 { CTL_INT, NET_NEIGH_UNRES_QLEN, "unres_qlen" }, 275 { CTL_INT, NET_NEIGH_PROXY_QLEN, "proxy_qlen" }, 276 /* NET_NEIGH_ANYCAST_DELAY "anycast_delay" no longer used */ 277 /* NET_NEIGH_PROXY_DELAY "proxy_delay" no longer used */ 278 /* NET_NEIGH_LOCKTIME "locktime" no longer used */ 279 { CTL_INT, NET_NEIGH_GC_INTERVAL, "gc_interval" }, 280 { CTL_INT, NET_NEIGH_GC_THRESH1, "gc_thresh1" }, 281 { CTL_INT, NET_NEIGH_GC_THRESH2, "gc_thresh2" }, 282 { CTL_INT, NET_NEIGH_GC_THRESH3, "gc_thresh3" }, 283 { CTL_INT, NET_NEIGH_RETRANS_TIME_MS, "retrans_time_ms" }, 284 { CTL_INT, NET_NEIGH_REACHABLE_TIME_MS, "base_reachable_time_ms" }, 285 {} 286}; 287 288static const struct bin_table bin_net_neigh_table[] = { 289 { CTL_DIR, NET_PROTO_CONF_DEFAULT, "default", bin_net_neigh_vars_table }, 290 { CTL_DIR, 0, NULL, bin_net_neigh_vars_table }, 291 {} 292}; 293 294static const struct bin_table bin_net_ipv4_netfilter_table[] = { 295 { CTL_INT, NET_IPV4_NF_CONNTRACK_MAX, "ip_conntrack_max" }, 296 297 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT "ip_conntrack_tcp_timeout_syn_sent" no longer used */ 298 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV "ip_conntrack_tcp_timeout_syn_recv" no longer used */ 299 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED "ip_conntrack_tcp_timeout_established" no longer used */ 300 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT "ip_conntrack_tcp_timeout_fin_wait" no longer used */ 301 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT "ip_conntrack_tcp_timeout_close_wait" no longer used */ 302 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK "ip_conntrack_tcp_timeout_last_ack" no longer used */ 303 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT "ip_conntrack_tcp_timeout_time_wait" no longer used */ 304 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE "ip_conntrack_tcp_timeout_close" no longer used */ 305 306 /* NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT "ip_conntrack_udp_timeout" no longer used */ 307 /* NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM "ip_conntrack_udp_timeout_stream" no longer used */ 308 /* NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT "ip_conntrack_icmp_timeout" no longer used */ 309 /* NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT "ip_conntrack_generic_timeout" no longer used */ 310 311 { CTL_INT, NET_IPV4_NF_CONNTRACK_BUCKETS, "ip_conntrack_buckets" }, 312 { CTL_INT, NET_IPV4_NF_CONNTRACK_LOG_INVALID, "ip_conntrack_log_invalid" }, 313 /* NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS "ip_conntrack_tcp_timeout_max_retrans" no longer used */ 314 { CTL_INT, NET_IPV4_NF_CONNTRACK_TCP_LOOSE, "ip_conntrack_tcp_loose" }, 315 { CTL_INT, NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL, "ip_conntrack_tcp_be_liberal" }, 316 { CTL_INT, NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS, "ip_conntrack_tcp_max_retrans" }, 317 318 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED "ip_conntrack_sctp_timeout_closed" no longer used */ 319 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT "ip_conntrack_sctp_timeout_cookie_wait" no longer used */ 320 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED "ip_conntrack_sctp_timeout_cookie_echoed" no longer used */ 321 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED "ip_conntrack_sctp_timeout_established" no longer used */ 322 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT "ip_conntrack_sctp_timeout_shutdown_sent" no longer used */ 323 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD "ip_conntrack_sctp_timeout_shutdown_recd" no longer used */ 324 /* NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT "ip_conntrack_sctp_timeout_shutdown_ack_sent" no longer used */ 325 326 { CTL_INT, NET_IPV4_NF_CONNTRACK_COUNT, "ip_conntrack_count" }, 327 { CTL_INT, NET_IPV4_NF_CONNTRACK_CHECKSUM, "ip_conntrack_checksum" }, 328 {} 329}; 330 331static const struct bin_table bin_net_ipv4_table[] = { 332 {CTL_INT, NET_IPV4_FORWARD, "ip_forward" }, 333 334 { CTL_DIR, NET_IPV4_CONF, "conf", bin_net_ipv4_conf_table }, 335 { CTL_DIR, NET_IPV4_NEIGH, "neigh", bin_net_neigh_table }, 336 { CTL_DIR, NET_IPV4_ROUTE, "route", bin_net_ipv4_route_table }, 337 /* NET_IPV4_FIB_HASH unused */ 338 { CTL_DIR, NET_IPV4_NETFILTER, "netfilter", bin_net_ipv4_netfilter_table }, 339 340 { CTL_INT, NET_IPV4_TCP_TIMESTAMPS, "tcp_timestamps" }, 341 { CTL_INT, NET_IPV4_TCP_WINDOW_SCALING, "tcp_window_scaling" }, 342 { CTL_INT, NET_IPV4_TCP_SACK, "tcp_sack" }, 343 { CTL_INT, NET_IPV4_TCP_RETRANS_COLLAPSE, "tcp_retrans_collapse" }, 344 { CTL_INT, NET_IPV4_DEFAULT_TTL, "ip_default_ttl" }, 345 /* NET_IPV4_AUTOCONFIG unused */ 346 { CTL_INT, NET_IPV4_NO_PMTU_DISC, "ip_no_pmtu_disc" }, 347 { CTL_INT, NET_IPV4_NONLOCAL_BIND, "ip_nonlocal_bind" }, 348 { CTL_INT, NET_IPV4_TCP_SYN_RETRIES, "tcp_syn_retries" }, 349 { CTL_INT, NET_TCP_SYNACK_RETRIES, "tcp_synack_retries" }, 350 { CTL_INT, NET_TCP_MAX_ORPHANS, "tcp_max_orphans" }, 351 { CTL_INT, NET_TCP_MAX_TW_BUCKETS, "tcp_max_tw_buckets" }, 352 { CTL_INT, NET_IPV4_DYNADDR, "ip_dynaddr" }, 353 { CTL_INT, NET_IPV4_TCP_KEEPALIVE_TIME, "tcp_keepalive_time" }, 354 { CTL_INT, NET_IPV4_TCP_KEEPALIVE_PROBES, "tcp_keepalive_probes" }, 355 { CTL_INT, NET_IPV4_TCP_KEEPALIVE_INTVL, "tcp_keepalive_intvl" }, 356 { CTL_INT, NET_IPV4_TCP_RETRIES1, "tcp_retries1" }, 357 { CTL_INT, NET_IPV4_TCP_RETRIES2, "tcp_retries2" }, 358 { CTL_INT, NET_IPV4_TCP_FIN_TIMEOUT, "tcp_fin_timeout" }, 359 { CTL_INT, NET_TCP_SYNCOOKIES, "tcp_syncookies" }, 360 { CTL_INT, NET_TCP_TW_RECYCLE, "tcp_tw_recycle" }, 361 { CTL_INT, NET_TCP_ABORT_ON_OVERFLOW, "tcp_abort_on_overflow" }, 362 { CTL_INT, NET_TCP_STDURG, "tcp_stdurg" }, 363 { CTL_INT, NET_TCP_RFC1337, "tcp_rfc1337" }, 364 { CTL_INT, NET_TCP_MAX_SYN_BACKLOG, "tcp_max_syn_backlog" }, 365 { CTL_INT, NET_IPV4_LOCAL_PORT_RANGE, "ip_local_port_range" }, 366 { CTL_INT, NET_IPV4_IGMP_MAX_MEMBERSHIPS, "igmp_max_memberships" }, 367 { CTL_INT, NET_IPV4_IGMP_MAX_MSF, "igmp_max_msf" }, 368 { CTL_INT, NET_IPV4_INET_PEER_THRESHOLD, "inet_peer_threshold" }, 369 { CTL_INT, NET_IPV4_INET_PEER_MINTTL, "inet_peer_minttl" }, 370 { CTL_INT, NET_IPV4_INET_PEER_MAXTTL, "inet_peer_maxttl" }, 371 { CTL_INT, NET_IPV4_INET_PEER_GC_MINTIME, "inet_peer_gc_mintime" }, 372 { CTL_INT, NET_IPV4_INET_PEER_GC_MAXTIME, "inet_peer_gc_maxtime" }, 373 { CTL_INT, NET_TCP_ORPHAN_RETRIES, "tcp_orphan_retries" }, 374 { CTL_INT, NET_TCP_FACK, "tcp_fack" }, 375 { CTL_INT, NET_TCP_REORDERING, "tcp_reordering" }, 376 { CTL_INT, NET_TCP_ECN, "tcp_ecn" }, 377 { CTL_INT, NET_TCP_DSACK, "tcp_dsack" }, 378 { CTL_INT, NET_TCP_MEM, "tcp_mem" }, 379 { CTL_INT, NET_TCP_WMEM, "tcp_wmem" }, 380 { CTL_INT, NET_TCP_RMEM, "tcp_rmem" }, 381 { CTL_INT, NET_TCP_APP_WIN, "tcp_app_win" }, 382 { CTL_INT, NET_TCP_ADV_WIN_SCALE, "tcp_adv_win_scale" }, 383 { CTL_INT, NET_TCP_TW_REUSE, "tcp_tw_reuse" }, 384 { CTL_INT, NET_TCP_FRTO, "tcp_frto" }, 385 { CTL_INT, NET_TCP_FRTO_RESPONSE, "tcp_frto_response" }, 386 { CTL_INT, NET_TCP_LOW_LATENCY, "tcp_low_latency" }, 387 { CTL_INT, NET_TCP_NO_METRICS_SAVE, "tcp_no_metrics_save" }, 388 { CTL_INT, NET_TCP_MODERATE_RCVBUF, "tcp_moderate_rcvbuf" }, 389 { CTL_INT, NET_TCP_TSO_WIN_DIVISOR, "tcp_tso_win_divisor" }, 390 { CTL_STR, NET_TCP_CONG_CONTROL, "tcp_congestion_control" }, 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_SLOW_START_AFTER_IDLE, "tcp_slow_start_after_idle" }, 395 { CTL_INT, NET_CIPSOV4_CACHE_ENABLE, "cipso_cache_enable" }, 396 { CTL_INT, NET_CIPSOV4_CACHE_BUCKET_SIZE, "cipso_cache_bucket_size" }, 397 { CTL_INT, NET_CIPSOV4_RBM_OPTFMT, "cipso_rbm_optfmt" }, 398 { CTL_INT, NET_CIPSOV4_RBM_STRICTVALID, "cipso_rbm_strictvalid" }, 399 /* NET_TCP_AVAIL_CONG_CONTROL "tcp_available_congestion_control" no longer used */ 400 { CTL_STR, NET_TCP_ALLOWED_CONG_CONTROL, "tcp_allowed_congestion_control" }, 401 { CTL_INT, NET_TCP_MAX_SSTHRESH, "tcp_max_ssthresh" }, 402 403 { CTL_INT, NET_IPV4_ICMP_ECHO_IGNORE_ALL, "icmp_echo_ignore_all" }, 404 { CTL_INT, NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS, "icmp_echo_ignore_broadcasts" }, 405 { CTL_INT, NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES, "icmp_ignore_bogus_error_responses" }, 406 { CTL_INT, NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR, "icmp_errors_use_inbound_ifaddr" }, 407 { CTL_INT, NET_IPV4_ICMP_RATELIMIT, "icmp_ratelimit" }, 408 { CTL_INT, NET_IPV4_ICMP_RATEMASK, "icmp_ratemask" }, 409 410 { CTL_INT, NET_IPV4_IPFRAG_HIGH_THRESH, "ipfrag_high_thresh" }, 411 { CTL_INT, NET_IPV4_IPFRAG_LOW_THRESH, "ipfrag_low_thresh" }, 412 { CTL_INT, NET_IPV4_IPFRAG_TIME, "ipfrag_time" }, 413 414 { CTL_INT, NET_IPV4_IPFRAG_SECRET_INTERVAL, "ipfrag_secret_interval" }, 415 /* NET_IPV4_IPFRAG_MAX_DIST "ipfrag_max_dist" no longer used */ 416 417 { CTL_INT, 2088 /* NET_IPQ_QMAX */, "ip_queue_maxlen" }, 418 419 /* NET_TCP_DEFAULT_WIN_SCALE unused */ 420 /* NET_TCP_BIC_BETA unused */ 421 /* NET_IPV4_TCP_MAX_KA_PROBES unused */ 422 /* NET_IPV4_IP_MASQ_DEBUG unused */ 423 /* NET_TCP_SYN_TAILDROP unused */ 424 /* NET_IPV4_ICMP_SOURCEQUENCH_RATE unused */ 425 /* NET_IPV4_ICMP_DESTUNREACH_RATE unused */ 426 /* NET_IPV4_ICMP_TIMEEXCEED_RATE unused */ 427 /* NET_IPV4_ICMP_PARAMPROB_RATE unused */ 428 /* NET_IPV4_ICMP_ECHOREPLY_RATE unused */ 429 /* NET_IPV4_ALWAYS_DEFRAG unused */ 430 {} 431}; 432 433static const struct bin_table bin_net_ipx_table[] = { 434 { CTL_INT, NET_IPX_PPROP_BROADCASTING, "ipx_pprop_broadcasting" }, 435 /* NET_IPX_FORWARDING unused */ 436 {} 437}; 438 439static const struct bin_table bin_net_atalk_table[] = { 440 { CTL_INT, NET_ATALK_AARP_EXPIRY_TIME, "aarp-expiry-time" }, 441 { CTL_INT, NET_ATALK_AARP_TICK_TIME, "aarp-tick-time" }, 442 { CTL_INT, NET_ATALK_AARP_RETRANSMIT_LIMIT, "aarp-retransmit-limit" }, 443 { CTL_INT, NET_ATALK_AARP_RESOLVE_TIME, "aarp-resolve-time" }, 444 {}, 445}; 446 447static const struct bin_table bin_net_netrom_table[] = { 448 { CTL_INT, NET_NETROM_DEFAULT_PATH_QUALITY, "default_path_quality" }, 449 { CTL_INT, NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER, "obsolescence_count_initialiser" }, 450 { CTL_INT, NET_NETROM_NETWORK_TTL_INITIALISER, "network_ttl_initialiser" }, 451 { CTL_INT, NET_NETROM_TRANSPORT_TIMEOUT, "transport_timeout" }, 452 { CTL_INT, NET_NETROM_TRANSPORT_MAXIMUM_TRIES, "transport_maximum_tries" }, 453 { CTL_INT, NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY, "transport_acknowledge_delay" }, 454 { CTL_INT, NET_NETROM_TRANSPORT_BUSY_DELAY, "transport_busy_delay" }, 455 { CTL_INT, NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE, "transport_requested_window_size" }, 456 { CTL_INT, NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT, "transport_no_activity_timeout" }, 457 { CTL_INT, NET_NETROM_ROUTING_CONTROL, "routing_control" }, 458 { CTL_INT, NET_NETROM_LINK_FAILS_COUNT, "link_fails_count" }, 459 { CTL_INT, NET_NETROM_RESET, "reset" }, 460 {} 461}; 462 463static const struct bin_table bin_net_ax25_param_table[] = { 464 { CTL_INT, NET_AX25_IP_DEFAULT_MODE, "ip_default_mode" }, 465 { CTL_INT, NET_AX25_DEFAULT_MODE, "ax25_default_mode" }, 466 { CTL_INT, NET_AX25_BACKOFF_TYPE, "backoff_type" }, 467 { CTL_INT, NET_AX25_CONNECT_MODE, "connect_mode" }, 468 { CTL_INT, NET_AX25_STANDARD_WINDOW, "standard_window_size" }, 469 { CTL_INT, NET_AX25_EXTENDED_WINDOW, "extended_window_size" }, 470 { CTL_INT, NET_AX25_T1_TIMEOUT, "t1_timeout" }, 471 { CTL_INT, NET_AX25_T2_TIMEOUT, "t2_timeout" }, 472 { CTL_INT, NET_AX25_T3_TIMEOUT, "t3_timeout" }, 473 { CTL_INT, NET_AX25_IDLE_TIMEOUT, "idle_timeout" }, 474 { CTL_INT, NET_AX25_N2, "maximum_retry_count" }, 475 { CTL_INT, NET_AX25_PACLEN, "maximum_packet_length" }, 476 { CTL_INT, NET_AX25_PROTOCOL, "protocol" }, 477 { CTL_INT, NET_AX25_DAMA_SLAVE_TIMEOUT, "dama_slave_timeout" }, 478 {} 479}; 480 481static const struct bin_table bin_net_ax25_table[] = { 482 { CTL_DIR, 0, NULL, bin_net_ax25_param_table }, 483 {} 484}; 485 486static const struct bin_table bin_net_rose_table[] = { 487 { CTL_INT, NET_ROSE_RESTART_REQUEST_TIMEOUT, "restart_request_timeout" }, 488 { CTL_INT, NET_ROSE_CALL_REQUEST_TIMEOUT, "call_request_timeout" }, 489 { CTL_INT, NET_ROSE_RESET_REQUEST_TIMEOUT, "reset_request_timeout" }, 490 { CTL_INT, NET_ROSE_CLEAR_REQUEST_TIMEOUT, "clear_request_timeout" }, 491 { CTL_INT, NET_ROSE_ACK_HOLD_BACK_TIMEOUT, "acknowledge_hold_back_timeout" }, 492 { CTL_INT, NET_ROSE_ROUTING_CONTROL, "routing_control" }, 493 { CTL_INT, NET_ROSE_LINK_FAIL_TIMEOUT, "link_fail_timeout" }, 494 { CTL_INT, NET_ROSE_MAX_VCS, "maximum_virtual_circuits" }, 495 { CTL_INT, NET_ROSE_WINDOW_SIZE, "window_size" }, 496 { CTL_INT, NET_ROSE_NO_ACTIVITY_TIMEOUT, "no_activity_timeout" }, 497 {} 498}; 499 500static const struct bin_table bin_net_ipv6_conf_var_table[] = { 501 { CTL_INT, NET_IPV6_FORWARDING, "forwarding" }, 502 { CTL_INT, NET_IPV6_HOP_LIMIT, "hop_limit" }, 503 { CTL_INT, NET_IPV6_MTU, "mtu" }, 504 { CTL_INT, NET_IPV6_ACCEPT_RA, "accept_ra" }, 505 { CTL_INT, NET_IPV6_ACCEPT_REDIRECTS, "accept_redirects" }, 506 { CTL_INT, NET_IPV6_AUTOCONF, "autoconf" }, 507 { CTL_INT, NET_IPV6_DAD_TRANSMITS, "dad_transmits" }, 508 { CTL_INT, NET_IPV6_RTR_SOLICITS, "router_solicitations" }, 509 { CTL_INT, NET_IPV6_RTR_SOLICIT_INTERVAL, "router_solicitation_interval" }, 510 { CTL_INT, NET_IPV6_RTR_SOLICIT_DELAY, "router_solicitation_delay" }, 511 { CTL_INT, NET_IPV6_USE_TEMPADDR, "use_tempaddr" }, 512 { CTL_INT, NET_IPV6_TEMP_VALID_LFT, "temp_valid_lft" }, 513 { CTL_INT, NET_IPV6_TEMP_PREFERED_LFT, "temp_prefered_lft" }, 514 { CTL_INT, NET_IPV6_REGEN_MAX_RETRY, "regen_max_retry" }, 515 { CTL_INT, NET_IPV6_MAX_DESYNC_FACTOR, "max_desync_factor" }, 516 { CTL_INT, NET_IPV6_MAX_ADDRESSES, "max_addresses" }, 517 { CTL_INT, NET_IPV6_FORCE_MLD_VERSION, "force_mld_version" }, 518 { CTL_INT, NET_IPV6_ACCEPT_RA_DEFRTR, "accept_ra_defrtr" }, 519 { CTL_INT, NET_IPV6_ACCEPT_RA_PINFO, "accept_ra_pinfo" }, 520 { CTL_INT, NET_IPV6_ACCEPT_RA_RTR_PREF, "accept_ra_rtr_pref" }, 521 { CTL_INT, NET_IPV6_RTR_PROBE_INTERVAL, "router_probe_interval" }, 522 { CTL_INT, NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN, "accept_ra_rt_info_max_plen" }, 523 { CTL_INT, NET_IPV6_PROXY_NDP, "proxy_ndp" }, 524 { CTL_INT, NET_IPV6_ACCEPT_SOURCE_ROUTE, "accept_source_route" }, 525 { CTL_INT, NET_IPV6_ACCEPT_RA_FROM_LOCAL, "accept_ra_from_local" }, 526 {} 527}; 528 529static 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 536static 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 550static const struct bin_table bin_net_ipv6_icmp_table[] = { 551 { CTL_INT, NET_IPV6_ICMP_RATELIMIT, "ratelimit" }, 552 {} 553}; 554 555static 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 570static 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 580static const struct bin_table bin_net_tr_table[] = { 581 { CTL_INT, NET_TR_RIF_TIMEOUT, "rif_timeout" }, 582 {} 583}; 584 585 586static 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 594static 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 605static 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 623static 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 644static 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 652static const struct bin_table bin_net_llc_station_table[] = { 653 { CTL_INT, NET_LLC_STATION_ACK_TIMEOUT, "ack_timeout" }, 654 {} 655}; 656 657static const struct bin_table bin_net_llc_llc2_table[] = { 658 { CTL_DIR, NET_LLC2, "timeout", bin_net_llc_llc2_timeout_table }, 659 {} 660}; 661 662static 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 668static 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 705static 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 723static 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 749static 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 762static 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 782static const struct bin_table bin_fs_ocfs2_nm_table[] = { 783 { CTL_STR, 1, "hb_ctl_path" }, 784 {} 785}; 786 787static const struct bin_table bin_fs_ocfs2_table[] = { 788 { CTL_DIR, 1, "nm", bin_fs_ocfs2_nm_table }, 789 {} 790}; 791 792static 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 799static 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 825static const struct bin_table bin_ipmi_table[] = { 826 { CTL_INT, DEV_IPMI_POWEROFF_POWERCYCLE, "poweroff_powercycle" }, 827 {} 828}; 829 830static 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 840static 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 846static const struct bin_table bin_scsi_table[] = { 847 { CTL_INT, DEV_SCSI_LOGGING_LEVEL, "logging_level" }, 848 {} 849}; 850 851static 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 862static 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 869static const struct bin_table bin_bus_table[] = { 870 { CTL_DIR, CTL_BUS_ISA, "isa", bin_bus_isa_table }, 871 {} 872}; 873 874 875static 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 881static 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 894static 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 903static 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 921static 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 928static 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; 967out: 968 return result; 969} 970 971static ssize_t bin_intvec(struct file *file, 972 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen) 973{ 974 ssize_t copied = 0; 975 char *buffer; 976 ssize_t result; 977 978 result = -ENOMEM; 979 buffer = kmalloc(BUFSZ, GFP_KERNEL); 980 if (!buffer) 981 goto out; 982 983 if (oldval && oldlen) { 984 unsigned __user *vec = oldval; 985 size_t length = oldlen / sizeof(*vec); 986 char *str, *end; 987 int i; 988 989 result = kernel_read(file, 0, buffer, BUFSZ - 1); 990 if (result < 0) 991 goto out_kfree; 992 993 str = buffer; 994 end = str + result; 995 *end++ = '\0'; 996 for (i = 0; i < length; i++) { 997 unsigned long value; 998 999 value = simple_strtoul(str, &str, 10); 1000 while (isspace(*str)) 1001 str++; 1002 1003 result = -EFAULT; 1004 if (put_user(value, vec + i)) 1005 goto out_kfree; 1006 1007 copied += sizeof(*vec); 1008 if (!isdigit(*str)) 1009 break; 1010 } 1011 } 1012 1013 if (newval && newlen) { 1014 unsigned __user *vec = newval; 1015 size_t length = newlen / sizeof(*vec); 1016 char *str, *end; 1017 int i; 1018 1019 str = buffer; 1020 end = str + BUFSZ; 1021 for (i = 0; i < length; i++) { 1022 unsigned long value; 1023 1024 result = -EFAULT; 1025 if (get_user(value, vec + i)) 1026 goto out_kfree; 1027 1028 str += scnprintf(str, end - str, "%lu\t", value); 1029 } 1030 1031 result = kernel_write(file, buffer, str - buffer, 0); 1032 if (result < 0) 1033 goto out_kfree; 1034 } 1035 result = copied; 1036out_kfree: 1037 kfree(buffer); 1038out: 1039 return result; 1040} 1041 1042static ssize_t bin_ulongvec(struct file *file, 1043 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen) 1044{ 1045 ssize_t copied = 0; 1046 char *buffer; 1047 ssize_t result; 1048 1049 result = -ENOMEM; 1050 buffer = kmalloc(BUFSZ, GFP_KERNEL); 1051 if (!buffer) 1052 goto out; 1053 1054 if (oldval && oldlen) { 1055 unsigned long __user *vec = oldval; 1056 size_t length = oldlen / sizeof(*vec); 1057 char *str, *end; 1058 int i; 1059 1060 result = kernel_read(file, 0, buffer, BUFSZ - 1); 1061 if (result < 0) 1062 goto out_kfree; 1063 1064 str = buffer; 1065 end = str + result; 1066 *end++ = '\0'; 1067 for (i = 0; i < length; i++) { 1068 unsigned long value; 1069 1070 value = simple_strtoul(str, &str, 10); 1071 while (isspace(*str)) 1072 str++; 1073 1074 result = -EFAULT; 1075 if (put_user(value, vec + i)) 1076 goto out_kfree; 1077 1078 copied += sizeof(*vec); 1079 if (!isdigit(*str)) 1080 break; 1081 } 1082 } 1083 1084 if (newval && newlen) { 1085 unsigned long __user *vec = newval; 1086 size_t length = newlen / sizeof(*vec); 1087 char *str, *end; 1088 int i; 1089 1090 str = buffer; 1091 end = str + BUFSZ; 1092 for (i = 0; i < length; i++) { 1093 unsigned long value; 1094 1095 result = -EFAULT; 1096 if (get_user(value, vec + i)) 1097 goto out_kfree; 1098 1099 str += scnprintf(str, end - str, "%lu\t", value); 1100 } 1101 1102 result = kernel_write(file, buffer, str - buffer, 0); 1103 if (result < 0) 1104 goto out_kfree; 1105 } 1106 result = copied; 1107out_kfree: 1108 kfree(buffer); 1109out: 1110 return result; 1111} 1112 1113static ssize_t bin_uuid(struct file *file, 1114 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen) 1115{ 1116 ssize_t result, copied = 0; 1117 1118 /* Only supports reads */ 1119 if (oldval && oldlen) { 1120 char buf[40], *str = buf; 1121 unsigned char uuid[16]; 1122 int i; 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 /* Convert the uuid to from a string to binary */ 1131 for (i = 0; i < 16; i++) { 1132 result = -EIO; 1133 if (!isxdigit(str[0]) || !isxdigit(str[1])) 1134 goto out; 1135 1136 uuid[i] = (hex_to_bin(str[0]) << 4) | 1137 hex_to_bin(str[1]); 1138 str += 2; 1139 if (*str == '-') 1140 str++; 1141 } 1142 1143 if (oldlen > 16) 1144 oldlen = 16; 1145 1146 result = -EFAULT; 1147 if (copy_to_user(oldval, uuid, oldlen)) 1148 goto out; 1149 1150 copied = oldlen; 1151 } 1152 result = copied; 1153out: 1154 return result; 1155} 1156 1157static ssize_t bin_dn_node_address(struct file *file, 1158 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen) 1159{ 1160 ssize_t result, copied = 0; 1161 1162 if (oldval && oldlen) { 1163 char buf[15], *nodep; 1164 unsigned long area, node; 1165 __le16 dnaddr; 1166 1167 result = kernel_read(file, 0, buf, sizeof(buf) - 1); 1168 if (result < 0) 1169 goto out; 1170 1171 buf[result] = '\0'; 1172 1173 /* Convert the decnet address to binary */ 1174 result = -EIO; 1175 nodep = strchr(buf, '.'); 1176 if (!nodep) 1177 goto out; 1178 ++nodep; 1179 1180 area = simple_strtoul(buf, NULL, 10); 1181 node = simple_strtoul(nodep, NULL, 10); 1182 1183 result = -EIO; 1184 if ((area > 63)||(node > 1023)) 1185 goto out; 1186 1187 dnaddr = cpu_to_le16((area << 10) | node); 1188 1189 result = -EFAULT; 1190 if (put_user(dnaddr, (__le16 __user *)oldval)) 1191 goto out; 1192 1193 copied = sizeof(dnaddr); 1194 } 1195 1196 if (newval && newlen) { 1197 __le16 dnaddr; 1198 char buf[15]; 1199 int len; 1200 1201 result = -EINVAL; 1202 if (newlen != sizeof(dnaddr)) 1203 goto out; 1204 1205 result = -EFAULT; 1206 if (get_user(dnaddr, (__le16 __user *)newval)) 1207 goto out; 1208 1209 len = scnprintf(buf, sizeof(buf), "%hu.%hu", 1210 le16_to_cpu(dnaddr) >> 10, 1211 le16_to_cpu(dnaddr) & 0x3ff); 1212 1213 result = kernel_write(file, buf, len, 0); 1214 if (result < 0) 1215 goto out; 1216 } 1217 1218 result = copied; 1219out: 1220 return result; 1221} 1222 1223static const struct bin_table *get_sysctl(const int *name, int nlen, char *path) 1224{ 1225 const struct bin_table *table = &bin_root_table[0]; 1226 int ctl_name; 1227 1228 /* The binary sysctl tables have a small maximum depth so 1229 * there is no danger of overflowing our path as it PATH_MAX 1230 * bytes long. 1231 */ 1232 memcpy(path, "sys/", 4); 1233 path += 4; 1234 1235repeat: 1236 if (!nlen) 1237 return ERR_PTR(-ENOTDIR); 1238 ctl_name = *name; 1239 name++; 1240 nlen--; 1241 for ( ; table->convert; table++) { 1242 int len = 0; 1243 1244 /* 1245 * For a wild card entry map from ifindex to network 1246 * device name. 1247 */ 1248 if (!table->ctl_name) { 1249#ifdef CONFIG_NET 1250 struct net *net = current->nsproxy->net_ns; 1251 struct net_device *dev; 1252 dev = dev_get_by_index(net, ctl_name); 1253 if (dev) { 1254 len = strlen(dev->name); 1255 memcpy(path, dev->name, len); 1256 dev_put(dev); 1257 } 1258#endif 1259 /* Use the well known sysctl number to proc name mapping */ 1260 } else if (ctl_name == table->ctl_name) { 1261 len = strlen(table->procname); 1262 memcpy(path, table->procname, len); 1263 } 1264 if (len) { 1265 path += len; 1266 if (table->child) { 1267 *path++ = '/'; 1268 table = table->child; 1269 goto repeat; 1270 } 1271 *path = '\0'; 1272 return table; 1273 } 1274 } 1275 return ERR_PTR(-ENOTDIR); 1276} 1277 1278static char *sysctl_getname(const int *name, int nlen, const struct bin_table **tablep) 1279{ 1280 char *tmp, *result; 1281 1282 result = ERR_PTR(-ENOMEM); 1283 tmp = __getname(); 1284 if (tmp) { 1285 const struct bin_table *table = get_sysctl(name, nlen, tmp); 1286 result = tmp; 1287 *tablep = table; 1288 if (IS_ERR(table)) { 1289 __putname(tmp); 1290 result = ERR_CAST(table); 1291 } 1292 } 1293 return result; 1294} 1295 1296static ssize_t binary_sysctl(const int *name, int nlen, 1297 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen) 1298{ 1299 const struct bin_table *table = NULL; 1300 struct vfsmount *mnt; 1301 struct file *file; 1302 ssize_t result; 1303 char *pathname; 1304 int flags; 1305 1306 pathname = sysctl_getname(name, nlen, &table); 1307 result = PTR_ERR(pathname); 1308 if (IS_ERR(pathname)) 1309 goto out; 1310 1311 /* How should the sysctl be accessed? */ 1312 if (oldval && oldlen && newval && newlen) { 1313 flags = O_RDWR; 1314 } else if (newval && newlen) { 1315 flags = O_WRONLY; 1316 } else if (oldval && oldlen) { 1317 flags = O_RDONLY; 1318 } else { 1319 result = 0; 1320 goto out_putname; 1321 } 1322 1323 mnt = task_active_pid_ns(current)->proc_mnt; 1324 file = file_open_root(mnt->mnt_root, mnt, pathname, flags, 0); 1325 result = PTR_ERR(file); 1326 if (IS_ERR(file)) 1327 goto out_putname; 1328 1329 result = table->convert(file, oldval, oldlen, newval, newlen); 1330 1331 fput(file); 1332out_putname: 1333 __putname(pathname); 1334out: 1335 return result; 1336} 1337 1338 1339#else /* CONFIG_SYSCTL_SYSCALL */ 1340 1341static ssize_t binary_sysctl(const int *name, int nlen, 1342 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen) 1343{ 1344 return -ENOSYS; 1345} 1346 1347#endif /* CONFIG_SYSCTL_SYSCALL */ 1348 1349 1350static void deprecated_sysctl_warning(const int *name, int nlen) 1351{ 1352 int i; 1353 1354 /* 1355 * CTL_KERN/KERN_VERSION is used by older glibc and cannot 1356 * ever go away. 1357 */ 1358 if (name[0] == CTL_KERN && name[1] == KERN_VERSION) 1359 return; 1360 1361 if (printk_ratelimit()) { 1362 printk(KERN_INFO 1363 "warning: process `%s' used the deprecated sysctl " 1364 "system call with ", current->comm); 1365 for (i = 0; i < nlen; i++) 1366 printk("%d.", name[i]); 1367 printk("\n"); 1368 } 1369 return; 1370} 1371 1372#define WARN_ONCE_HASH_BITS 8 1373#define WARN_ONCE_HASH_SIZE (1<<WARN_ONCE_HASH_BITS) 1374 1375static DECLARE_BITMAP(warn_once_bitmap, WARN_ONCE_HASH_SIZE); 1376 1377#define FNV32_OFFSET 2166136261U 1378#define FNV32_PRIME 0x01000193 1379 1380/* 1381 * Print each legacy sysctl (approximately) only once. 1382 * To avoid making the tables non-const use a external 1383 * hash-table instead. 1384 * Worst case hash collision: 6, but very rarely. 1385 * NOTE! We don't use the SMP-safe bit tests. We simply 1386 * don't care enough. 1387 */ 1388static void warn_on_bintable(const int *name, int nlen) 1389{ 1390 int i; 1391 u32 hash = FNV32_OFFSET; 1392 1393 for (i = 0; i < nlen; i++) 1394 hash = (hash ^ name[i]) * FNV32_PRIME; 1395 hash %= WARN_ONCE_HASH_SIZE; 1396 if (__test_and_set_bit(hash, warn_once_bitmap)) 1397 return; 1398 deprecated_sysctl_warning(name, nlen); 1399} 1400 1401static ssize_t do_sysctl(int __user *args_name, int nlen, 1402 void __user *oldval, size_t oldlen, void __user *newval, size_t newlen) 1403{ 1404 int name[CTL_MAXNAME]; 1405 int i; 1406 1407 /* Check args->nlen. */ 1408 if (nlen < 0 || nlen > CTL_MAXNAME) 1409 return -ENOTDIR; 1410 /* Read in the sysctl name for simplicity */ 1411 for (i = 0; i < nlen; i++) 1412 if (get_user(name[i], args_name + i)) 1413 return -EFAULT; 1414 1415 warn_on_bintable(name, nlen); 1416 1417 return binary_sysctl(name, nlen, oldval, oldlen, newval, newlen); 1418} 1419 1420SYSCALL_DEFINE1(sysctl, struct __sysctl_args __user *, args) 1421{ 1422 struct __sysctl_args tmp; 1423 size_t oldlen = 0; 1424 ssize_t result; 1425 1426 if (copy_from_user(&tmp, args, sizeof(tmp))) 1427 return -EFAULT; 1428 1429 if (tmp.oldval && !tmp.oldlenp) 1430 return -EFAULT; 1431 1432 if (tmp.oldlenp && get_user(oldlen, tmp.oldlenp)) 1433 return -EFAULT; 1434 1435 result = do_sysctl(tmp.name, tmp.nlen, tmp.oldval, oldlen, 1436 tmp.newval, tmp.newlen); 1437 1438 if (result >= 0) { 1439 oldlen = result; 1440 result = 0; 1441 } 1442 1443 if (tmp.oldlenp && put_user(oldlen, tmp.oldlenp)) 1444 return -EFAULT; 1445 1446 return result; 1447} 1448 1449 1450#ifdef CONFIG_COMPAT 1451 1452struct compat_sysctl_args { 1453 compat_uptr_t name; 1454 int nlen; 1455 compat_uptr_t oldval; 1456 compat_uptr_t oldlenp; 1457 compat_uptr_t newval; 1458 compat_size_t newlen; 1459 compat_ulong_t __unused[4]; 1460}; 1461 1462COMPAT_SYSCALL_DEFINE1(sysctl, struct compat_sysctl_args __user *, args) 1463{ 1464 struct compat_sysctl_args tmp; 1465 compat_size_t __user *compat_oldlenp; 1466 size_t oldlen = 0; 1467 ssize_t result; 1468 1469 if (copy_from_user(&tmp, args, sizeof(tmp))) 1470 return -EFAULT; 1471 1472 if (tmp.oldval && !tmp.oldlenp) 1473 return -EFAULT; 1474 1475 compat_oldlenp = compat_ptr(tmp.oldlenp); 1476 if (compat_oldlenp && get_user(oldlen, compat_oldlenp)) 1477 return -EFAULT; 1478 1479 result = do_sysctl(compat_ptr(tmp.name), tmp.nlen, 1480 compat_ptr(tmp.oldval), oldlen, 1481 compat_ptr(tmp.newval), tmp.newlen); 1482 1483 if (result >= 0) { 1484 oldlen = result; 1485 result = 0; 1486 } 1487 1488 if (compat_oldlenp && put_user(oldlen, compat_oldlenp)) 1489 return -EFAULT; 1490 1491 return result; 1492} 1493 1494#endif /* CONFIG_COMPAT */ 1495