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