1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _INET_IP_STACK_H 28 #define _INET_IP_STACK_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 #include <sys/netstack.h> 35 #include <netinet/igmp_var.h> 36 37 #ifdef _KERNEL 38 #include <sys/list.h> 39 40 /* 41 * IP statistics. 42 */ 43 #define IP_STAT(ipst, x) ((ipst)->ips_ip_statistics.x.value.ui64++) 44 #define IP_STAT_UPDATE(ipst, x, n) \ 45 ((ipst)->ips_ip_statistics.x.value.ui64 += (n)) 46 47 typedef struct ip_stat { 48 kstat_named_t ipsec_fanout_proto; 49 kstat_named_t ip_udp_fannorm; 50 kstat_named_t ip_udp_fanmb; 51 kstat_named_t ip_udp_fanothers; 52 kstat_named_t ip_udp_fast_path; 53 kstat_named_t ip_udp_slow_path; 54 kstat_named_t ip_udp_input_err; 55 kstat_named_t ip_tcppullup; 56 kstat_named_t ip_tcpoptions; 57 kstat_named_t ip_multipkttcp; 58 kstat_named_t ip_tcp_fast_path; 59 kstat_named_t ip_tcp_slow_path; 60 kstat_named_t ip_tcp_input_error; 61 kstat_named_t ip_db_ref; 62 kstat_named_t ip_notaligned1; 63 kstat_named_t ip_notaligned2; 64 kstat_named_t ip_multimblk3; 65 kstat_named_t ip_multimblk4; 66 kstat_named_t ip_ipoptions; 67 kstat_named_t ip_classify_fail; 68 kstat_named_t ip_opt; 69 kstat_named_t ip_udp_rput_local; 70 kstat_named_t ipsec_proto_ahesp; 71 kstat_named_t ip_conn_flputbq; 72 kstat_named_t ip_conn_walk_drain; 73 kstat_named_t ip_out_sw_cksum; 74 kstat_named_t ip_in_sw_cksum; 75 kstat_named_t ip_trash_ire_reclaim_calls; 76 kstat_named_t ip_trash_ire_reclaim_success; 77 kstat_named_t ip_ire_arp_timer_expired; 78 kstat_named_t ip_ire_redirect_timer_expired; 79 kstat_named_t ip_ire_pmtu_timer_expired; 80 kstat_named_t ip_input_multi_squeue; 81 kstat_named_t ip_tcp_in_full_hw_cksum_err; 82 kstat_named_t ip_tcp_in_part_hw_cksum_err; 83 kstat_named_t ip_tcp_in_sw_cksum_err; 84 kstat_named_t ip_tcp_out_sw_cksum_bytes; 85 kstat_named_t ip_udp_in_full_hw_cksum_err; 86 kstat_named_t ip_udp_in_part_hw_cksum_err; 87 kstat_named_t ip_udp_in_sw_cksum_err; 88 kstat_named_t ip_udp_out_sw_cksum_bytes; 89 kstat_named_t ip_frag_mdt_pkt_out; 90 kstat_named_t ip_frag_mdt_discarded; 91 kstat_named_t ip_frag_mdt_allocfail; 92 kstat_named_t ip_frag_mdt_addpdescfail; 93 kstat_named_t ip_frag_mdt_allocd; 94 } ip_stat_t; 95 96 97 /* 98 * IP6 statistics. 99 */ 100 #define IP6_STAT(ipst, x) ((ipst)->ips_ip6_statistics.x.value.ui64++) 101 #define IP6_STAT_UPDATE(ipst, x, n) \ 102 ((ipst)->ips_ip6_statistics.x.value.ui64 += (n)) 103 104 typedef struct ip6_stat { 105 kstat_named_t ip6_udp_fast_path; 106 kstat_named_t ip6_udp_slow_path; 107 kstat_named_t ip6_udp_fannorm; 108 kstat_named_t ip6_udp_fanmb; 109 kstat_named_t ip6_out_sw_cksum; 110 kstat_named_t ip6_in_sw_cksum; 111 kstat_named_t ip6_tcp_in_full_hw_cksum_err; 112 kstat_named_t ip6_tcp_in_part_hw_cksum_err; 113 kstat_named_t ip6_tcp_in_sw_cksum_err; 114 kstat_named_t ip6_tcp_out_sw_cksum_bytes; 115 kstat_named_t ip6_udp_in_full_hw_cksum_err; 116 kstat_named_t ip6_udp_in_part_hw_cksum_err; 117 kstat_named_t ip6_udp_in_sw_cksum_err; 118 kstat_named_t ip6_udp_out_sw_cksum_bytes; 119 kstat_named_t ip6_frag_mdt_pkt_out; 120 kstat_named_t ip6_frag_mdt_discarded; 121 kstat_named_t ip6_frag_mdt_allocfail; 122 kstat_named_t ip6_frag_mdt_addpdescfail; 123 kstat_named_t ip6_frag_mdt_allocd; 124 } ip6_stat_t; 125 126 typedef struct ire_stats { 127 uint64_t ire_stats_alloced; /* # of ires alloced */ 128 uint64_t ire_stats_freed; /* # of ires freed */ 129 uint64_t ire_stats_inserted; /* # of ires inserted in the bucket */ 130 uint64_t ire_stats_deleted; /* # of ires deleted from the bucket */ 131 } ire_stats_t; 132 133 134 /* 135 * IP stack instances 136 */ 137 struct ip_stack { 138 netstack_t *ips_netstack; /* Common netstack */ 139 140 struct ipparam_s *ips_param_arr; /* ndd variable table */ 141 struct ipndp_s *ips_ndp_arr; 142 143 mib2_ipIfStatsEntry_t ips_ip_mib; /* SNMP fixed size info */ 144 mib2_icmp_t ips_icmp_mib; 145 /* 146 * IPv6 mibs when the interface (ill) is not known. 147 * When the ill is known the per-interface mib in the ill is used. 148 */ 149 mib2_ipIfStatsEntry_t ips_ip6_mib; 150 mib2_ipv6IfIcmpEntry_t ips_icmp6_mib; 151 152 struct igmpstat ips_igmpstat; 153 154 kstat_t *ips_ip_mibkp; /* kstat exporting ip_mib data */ 155 kstat_t *ips_icmp_mibkp; /* kstat exporting icmp_mib data */ 156 kstat_t *ips_ip_kstat; 157 ip_stat_t ips_ip_statistics; 158 kstat_t *ips_ip6_kstat; 159 ip6_stat_t ips_ip6_statistics; 160 161 /* ip.c */ 162 krwlock_t ips_ip_g_nd_lock; 163 kmutex_t ips_igmp_timer_lock; 164 kmutex_t ips_mld_timer_lock; 165 kmutex_t ips_ip_mi_lock; 166 kmutex_t ips_ip_addr_avail_lock; 167 krwlock_t ips_ill_g_lock; 168 krwlock_t ips_ipsec_capab_ills_lock; 169 /* protects the list of IPsec capable ills */ 170 struct ipsec_capab_ill_s *ips_ipsec_capab_ills_ah; 171 struct ipsec_capab_ill_s *ips_ipsec_capab_ills_esp; 172 173 krwlock_t ips_ill_g_usesrc_lock; 174 175 struct ill_group *ips_illgrp_head_v4; /* Head of IPv4 ill groups */ 176 struct ill_group *ips_illgrp_head_v6; /* Head of IPv6 ill groups */ 177 178 /* Taskq dispatcher for capability operations */ 179 kmutex_t ips_capab_taskq_lock; 180 kcondvar_t ips_capab_taskq_cv; 181 list_t ips_capab_taskq_list; 182 kthread_t *ips_capab_taskq_thread; 183 boolean_t ips_capab_taskq_quit; 184 185 /* ipclassifier.c - keep in ip_stack_t */ 186 /* ipclassifier hash tables */ 187 struct connf_s *ips_rts_clients; 188 struct connf_s *ips_ipcl_conn_fanout; 189 struct connf_s *ips_ipcl_bind_fanout; 190 struct connf_s *ips_ipcl_proto_fanout; 191 struct connf_s *ips_ipcl_proto_fanout_v6; 192 struct connf_s *ips_ipcl_udp_fanout; 193 struct connf_s *ips_ipcl_raw_fanout; 194 uint_t ips_ipcl_conn_fanout_size; 195 uint_t ips_ipcl_bind_fanout_size; 196 uint_t ips_ipcl_udp_fanout_size; 197 uint_t ips_ipcl_raw_fanout_size; 198 struct connf_s *ips_ipcl_globalhash_fanout; 199 int ips_conn_g_index; 200 201 /* ip.c */ 202 /* Following protected by igmp_timer_lock */ 203 int ips_igmp_time_to_next; /* Time since last timeout */ 204 int ips_igmp_timer_scheduled_last; 205 int ips_igmp_deferred_next; 206 timeout_id_t ips_igmp_timeout_id; 207 kthread_t *ips_igmp_timer_thread; 208 boolean_t ips_igmp_timer_setter_active; 209 210 /* Following protected by mld_timer_lock */ 211 int ips_mld_time_to_next; /* Time since last timeout */ 212 int ips_mld_timer_scheduled_last; 213 int ips_mld_deferred_next; 214 timeout_id_t ips_mld_timeout_id; 215 kthread_t *ips_mld_timer_thread; 216 boolean_t ips_mld_timer_setter_active; 217 218 /* Protected by igmp_slowtimeout_lock */ 219 timeout_id_t ips_igmp_slowtimeout_id; 220 kmutex_t ips_igmp_slowtimeout_lock; 221 222 /* Protected by mld_slowtimeout_lock */ 223 timeout_id_t ips_mld_slowtimeout_id; 224 kmutex_t ips_mld_slowtimeout_lock; 225 226 /* IPv4 forwarding table */ 227 struct radix_node_head *ips_ip_ftable; 228 229 /* This is dynamically allocated in ip_ire_init */ 230 struct irb *ips_ip_cache_table; 231 232 #define IPV6_ABITS 128 233 #define IP6_MASK_TABLE_SIZE (IPV6_ABITS + 1) /* 129 ptrs */ 234 235 struct irb *ips_ip_forwarding_table_v6[IP6_MASK_TABLE_SIZE]; 236 /* This is dynamically allocated in ip_ire_init */ 237 struct irb *ips_ip_cache_table_v6; 238 239 uint32_t ips_ire_handle; 240 /* 241 * ire_ft_init_lock is used while initializing ip_forwarding_table 242 * dynamically in ire_add. 243 */ 244 kmutex_t ips_ire_ft_init_lock; 245 kmutex_t ips_ire_handle_lock; /* Protects ire_handle */ 246 247 uint32_t ips_ip_cache_table_size; 248 uint32_t ips_ip6_cache_table_size; 249 uint32_t ips_ip6_ftable_hash_size; 250 251 ire_stats_t ips_ire_stats_v4; /* IPv4 ire statistics */ 252 ire_stats_t ips_ire_stats_v6; /* IPv6 ire statistics */ 253 254 /* pending binds */ 255 mblk_t *ips_ip6_asp_pending_ops; 256 mblk_t *ips_ip6_asp_pending_ops_tail; 257 258 /* Synchronize updates with table usage */ 259 mblk_t *ips_ip6_asp_pending_update; /* pending table updates */ 260 261 boolean_t ips_ip6_asp_uip; /* table update in progress */ 262 kmutex_t ips_ip6_asp_lock; /* protect all the above */ 263 uint32_t ips_ip6_asp_refcnt; /* outstanding references */ 264 265 struct ip6_asp *ips_ip6_asp_table; 266 /* The number of policy entries in the table */ 267 uint_t ips_ip6_asp_table_count; 268 269 int ips_ip_g_forward; 270 int ips_ipv6_forward; 271 272 int ips_ipmp_hook_emulation; /* ndd variable */ 273 274 time_t ips_ip_g_frag_timeout; 275 clock_t ips_ip_g_frag_timo_ms; 276 277 struct conn_s *ips_ip_g_mrouter; 278 279 /* Time since last icmp_pkt_err */ 280 clock_t ips_icmp_pkt_err_last; 281 /* Number of packets sent in burst */ 282 uint_t ips_icmp_pkt_err_sent; 283 /* Used by icmp_send_redirect_v6 for picking random src. */ 284 uint_t ips_icmp_redirect_v6_src_index; 285 286 /* Protected by ip_mi_lock */ 287 void *ips_ip_g_head; /* Instance Data List Head */ 288 289 caddr_t ips_ip_g_nd; /* Named Dispatch List Head */ 290 291 /* Multirouting stuff */ 292 /* Interval (in ms) between consecutive 'bad MTU' warnings */ 293 hrtime_t ips_ip_multirt_log_interval; 294 /* Time since last warning issued. */ 295 hrtime_t ips_multirt_bad_mtu_last_time; 296 297 struct cgtp_filter_ops *ips_ip_cgtp_filter_ops; /* CGTP hooks */ 298 boolean_t ips_ip_cgtp_filter; /* Enable/disable CGTP hooks */ 299 300 kmutex_t ips_ip_trash_timer_lock; 301 timeout_id_t ips_ip_ire_expire_id; /* IRE expiration timer. */ 302 struct ipsq_s *ips_ipsq_g_head; 303 uint_t ips_ill_index; /* Used to assign interface indicies */ 304 /* When set search for unused index */ 305 boolean_t ips_ill_index_wrap; 306 307 clock_t ips_ip_ire_arp_time_elapsed; 308 /* Time since IRE cache last flushed */ 309 clock_t ips_ip_ire_rd_time_elapsed; 310 /* ... redirect IREs last flushed */ 311 clock_t ips_ip_ire_pmtu_time_elapsed; 312 /* Time since path mtu increase */ 313 314 uint_t ips_ip_redirect_cnt; 315 /* Num of redirect routes in ftable */ 316 uint_t ips_ipv6_ire_default_count; 317 /* Number of IPv6 IRE_DEFAULT entries */ 318 uint_t ips_ipv6_ire_default_index; 319 /* Walking IPv6 index used to mod in */ 320 321 uint_t ips_loopback_packets; 322 323 /* NDP/NCE structures for IPv4 and IPv6 */ 324 struct ndp_g_s *ips_ndp4; 325 struct ndp_g_s *ips_ndp6; 326 327 /* ip_mroute stuff */ 328 kmutex_t ips_ip_g_mrouter_mutex; 329 330 struct mrtstat *ips_mrtstat; /* Stats for netstat */ 331 int ips_saved_ip_g_forward; 332 333 /* numvifs is only a hint about the max interface being used. */ 334 ushort_t ips_numvifs; 335 kmutex_t ips_numvifs_mutex; 336 337 struct vif *ips_vifs; 338 struct mfcb *ips_mfcs; /* kernel routing table */ 339 struct tbf *ips_tbfs; 340 /* 341 * One-back cache used to locate a tunnel's vif, 342 * given a datagram's src ip address. 343 */ 344 ipaddr_t ips_last_encap_src; 345 struct vif *ips_last_encap_vif; 346 kmutex_t ips_last_encap_lock; /* Protects the above */ 347 348 /* 349 * reg_vif_num is protected by numvifs_mutex 350 */ 351 /* Whether or not special PIM assert processing is enabled. */ 352 ushort_t ips_reg_vif_num; /* Index to Register vif */ 353 int ips_pim_assert; 354 355 union ill_g_head_u *ips_ill_g_heads; /* ILL List Head */ 356 357 kstat_t *ips_loopback_ksp; 358 359 uint_t ips_ipif_src_random; 360 361 struct idl_s *ips_conn_drain_list; /* Array of conn drain lists */ 362 uint_t ips_conn_drain_list_cnt; /* Count of conn_drain_list */ 363 int ips_conn_drain_list_index; /* Next drain_list */ 364 365 /* 366 * ID used to assign next free one. 367 * Increases by one. Once it wraps we search for an unused ID. 368 */ 369 uint_t ips_ip_src_id; 370 boolean_t ips_srcid_wrapped; 371 372 struct srcid_map *ips_srcid_head; 373 krwlock_t ips_srcid_lock; 374 375 uint64_t ips_ipif_g_seqid; 376 union phyint_list_u *ips_phyint_g_list; /* start of phyint list */ 377 378 /* 379 * Reflects value of FAILBACK variable in IPMP config file 380 * /etc/default/mpathd. Default value is B_TRUE. 381 * Set to B_FALSE if user disabled failback by configuring 382 * "FAILBACK=no" in.mpathd uses SIOCSIPMPFAILBACK ioctl to pass this 383 * information to kernel. 384 */ 385 boolean_t ips_ipmp_enable_failback; 386 387 /* ip_neti.c */ 388 hook_family_t ips_ipv4root; 389 hook_family_t ips_ipv6root; 390 391 /* 392 * Hooks for firewalling 393 */ 394 hook_event_t ips_ip4_physical_in_event; 395 hook_event_t ips_ip4_physical_out_event; 396 hook_event_t ips_ip4_forwarding_event; 397 hook_event_t ips_ip4_loopback_in_event; 398 hook_event_t ips_ip4_loopback_out_event; 399 hook_event_t ips_ip4_nic_events; 400 hook_event_t ips_ip6_physical_in_event; 401 hook_event_t ips_ip6_physical_out_event; 402 hook_event_t ips_ip6_forwarding_event; 403 hook_event_t ips_ip6_loopback_in_event; 404 hook_event_t ips_ip6_loopback_out_event; 405 hook_event_t ips_ip6_nic_events; 406 407 hook_event_token_t ips_ipv4firewall_physical_in; 408 hook_event_token_t ips_ipv4firewall_physical_out; 409 hook_event_token_t ips_ipv4firewall_forwarding; 410 hook_event_token_t ips_ipv4firewall_loopback_in; 411 hook_event_token_t ips_ipv4firewall_loopback_out; 412 hook_event_token_t ips_ipv4nicevents; 413 hook_event_token_t ips_ipv6firewall_physical_in; 414 hook_event_token_t ips_ipv6firewall_physical_out; 415 hook_event_token_t ips_ipv6firewall_forwarding; 416 hook_event_token_t ips_ipv6firewall_loopback_in; 417 hook_event_token_t ips_ipv6firewall_loopback_out; 418 hook_event_token_t ips_ipv6nicevents; 419 420 net_handle_t ips_ipv4_net_data; 421 net_handle_t ips_ipv6_net_data; 422 423 boolean_t ips_ipobs_enabled; 424 list_t ips_ipobs_cb_list; 425 kmutex_t ips_ipobs_cb_lock; 426 uint_t ips_ipobs_cb_nwalkers; 427 kcondvar_t ips_ipobs_cb_cv; 428 429 struct __ldi_ident *ips_ldi_ident; 430 }; 431 typedef struct ip_stack ip_stack_t; 432 433 /* Finding an ip_stack_t */ 434 #define CONNQ_TO_IPST(_q) (Q_TO_CONN(_q)->conn_netstack->netstack_ip) 435 #define ILLQ_TO_IPST(_q) (((ill_t *)(_q)->q_ptr)->ill_ipst) 436 437 #else /* _KERNEL */ 438 typedef int ip_stack_t; 439 #endif /* _KERNEL */ 440 441 #ifdef __cplusplus 442 } 443 #endif 444 445 #endif /* _INET_IP_STACK_H */ 446