/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _INET_IP_STACK_H #define _INET_IP_STACK_H #pragma ident "%Z%%M% %I% %E% SMI" #ifdef __cplusplus extern "C" { #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef _KERNEL #include #include #include #include #endif /* _KERNEL */ #ifdef _KERNEL /* * IP statistics. */ #define IP_STAT(ipst, x) ((ipst)->ips_ip_statistics.x.value.ui64++) #define IP_STAT_UPDATE(ipst, x, n) \ ((ipst)->ips_ip_statistics.x.value.ui64 += (n)) typedef struct ip_stat { kstat_named_t ipsec_fanout_proto; kstat_named_t ip_udp_fannorm; kstat_named_t ip_udp_fanmb; kstat_named_t ip_udp_fanothers; kstat_named_t ip_udp_fast_path; kstat_named_t ip_udp_slow_path; kstat_named_t ip_udp_input_err; kstat_named_t ip_tcppullup; kstat_named_t ip_tcpoptions; kstat_named_t ip_multipkttcp; kstat_named_t ip_tcp_fast_path; kstat_named_t ip_tcp_slow_path; kstat_named_t ip_tcp_input_error; kstat_named_t ip_db_ref; kstat_named_t ip_notaligned1; kstat_named_t ip_notaligned2; kstat_named_t ip_multimblk3; kstat_named_t ip_multimblk4; kstat_named_t ip_ipoptions; kstat_named_t ip_classify_fail; kstat_named_t ip_opt; kstat_named_t ip_udp_rput_local; kstat_named_t ipsec_proto_ahesp; kstat_named_t ip_conn_flputbq; kstat_named_t ip_conn_walk_drain; kstat_named_t ip_out_sw_cksum; kstat_named_t ip_in_sw_cksum; kstat_named_t ip_trash_ire_reclaim_calls; kstat_named_t ip_trash_ire_reclaim_success; kstat_named_t ip_ire_arp_timer_expired; kstat_named_t ip_ire_redirect_timer_expired; kstat_named_t ip_ire_pmtu_timer_expired; kstat_named_t ip_input_multi_squeue; kstat_named_t ip_tcp_in_full_hw_cksum_err; kstat_named_t ip_tcp_in_part_hw_cksum_err; kstat_named_t ip_tcp_in_sw_cksum_err; kstat_named_t ip_tcp_out_sw_cksum_bytes; kstat_named_t ip_udp_in_full_hw_cksum_err; kstat_named_t ip_udp_in_part_hw_cksum_err; kstat_named_t ip_udp_in_sw_cksum_err; kstat_named_t ip_udp_out_sw_cksum_bytes; kstat_named_t ip_frag_mdt_pkt_out; kstat_named_t ip_frag_mdt_discarded; kstat_named_t ip_frag_mdt_allocfail; kstat_named_t ip_frag_mdt_addpdescfail; kstat_named_t ip_frag_mdt_allocd; } ip_stat_t; /* * IP6 statistics. */ #define IP6_STAT(ipst, x) ((ipst)->ips_ip6_statistics.x.value.ui64++) #define IP6_STAT_UPDATE(ipst, x, n) \ ((ipst)->ips_ip6_statistics.x.value.ui64 += (n)) typedef struct ip6_stat { kstat_named_t ip6_udp_fast_path; kstat_named_t ip6_udp_slow_path; kstat_named_t ip6_udp_fannorm; kstat_named_t ip6_udp_fanmb; kstat_named_t ip6_out_sw_cksum; kstat_named_t ip6_in_sw_cksum; kstat_named_t ip6_tcp_in_full_hw_cksum_err; kstat_named_t ip6_tcp_in_part_hw_cksum_err; kstat_named_t ip6_tcp_in_sw_cksum_err; kstat_named_t ip6_tcp_out_sw_cksum_bytes; kstat_named_t ip6_udp_in_full_hw_cksum_err; kstat_named_t ip6_udp_in_part_hw_cksum_err; kstat_named_t ip6_udp_in_sw_cksum_err; kstat_named_t ip6_udp_out_sw_cksum_bytes; kstat_named_t ip6_frag_mdt_pkt_out; kstat_named_t ip6_frag_mdt_discarded; kstat_named_t ip6_frag_mdt_allocfail; kstat_named_t ip6_frag_mdt_addpdescfail; kstat_named_t ip6_frag_mdt_allocd; } ip6_stat_t; typedef struct ire_stats { uint64_t ire_stats_alloced; /* # of ires alloced */ uint64_t ire_stats_freed; /* # of ires freed */ uint64_t ire_stats_inserted; /* # of ires inserted in the bucket */ uint64_t ire_stats_deleted; /* # of ires deleted from the bucket */ } ire_stats_t; /* * IP stack instances */ struct ip_stack { netstack_t *ips_netstack; /* Common netstack */ struct ipparam_s *ips_param_arr; /* ndd variable table */ struct ipndp_s *ips_ndp_arr; mib2_ipIfStatsEntry_t ips_ip_mib; /* SNMP fixed size info */ mib2_icmp_t ips_icmp_mib; /* * IPv6 mibs when the interface (ill) is not known. * When the ill is known the per-interface mib in the ill is used. */ mib2_ipIfStatsEntry_t ips_ip6_mib; mib2_ipv6IfIcmpEntry_t ips_icmp6_mib; struct igmpstat ips_igmpstat; kstat_t *ips_ip_mibkp; /* kstat exporting ip_mib data */ kstat_t *ips_icmp_mibkp; /* kstat exporting icmp_mib data */ kstat_t *ips_ip_kstat; ip_stat_t ips_ip_statistics; kstat_t *ips_ip6_kstat; ip6_stat_t ips_ip6_statistics; /* ip.c */ krwlock_t ips_ip_g_nd_lock; kmutex_t ips_igmp_timer_lock; kmutex_t ips_mld_timer_lock; kmutex_t ips_ip_mi_lock; kmutex_t ips_ip_addr_avail_lock; krwlock_t ips_ill_g_lock; krwlock_t ips_ipsec_capab_ills_lock; /* protects the list of IPsec capable ills */ struct ipsec_capab_ill_s *ips_ipsec_capab_ills_ah; struct ipsec_capab_ill_s *ips_ipsec_capab_ills_esp; krwlock_t ips_ill_g_usesrc_lock; struct ill_group *ips_illgrp_head_v4; /* Head of IPv4 ill groups */ struct ill_group *ips_illgrp_head_v6; /* Head of IPv6 ill groups */ /* ipclassifier.c - keep in ip_stack_t */ /* ipclassifier hash tables */ struct connf_s *ips_rts_clients; struct connf_s *ips_ipcl_conn_fanout; struct connf_s *ips_ipcl_bind_fanout; struct connf_s *ips_ipcl_proto_fanout; struct connf_s *ips_ipcl_proto_fanout_v6; struct connf_s *ips_ipcl_udp_fanout; struct connf_s *ips_ipcl_raw_fanout; uint_t ips_ipcl_conn_fanout_size; uint_t ips_ipcl_bind_fanout_size; uint_t ips_ipcl_udp_fanout_size; uint_t ips_ipcl_raw_fanout_size; struct connf_s *ips_ipcl_globalhash_fanout; int ips_conn_g_index; /* ip.c */ /* Following protected by ips_igmp_timer_lock */ int ips_igmp_time_to_next; /* Time since last timeout */ int ips_igmp_timer_scheduled_last; int ips_igmp_deferred_next; timeout_id_t ips_igmp_timeout_id; /* Protected by igmp_timer_lock */ boolean_t ips_igmp_timer_setter_active; /* Following protected by mld_timer_lock */ int ips_mld_time_to_next; /* Time since last timeout */ int ips_mld_timer_scheduled_last; int ips_mld_deferred_next; timeout_id_t ips_mld_timeout_id; /* Protected by mld_timer_lock */ boolean_t ips_mld_timer_setter_active; /* Protected by igmp_slowtimeout_lock */ timeout_id_t ips_igmp_slowtimeout_id; kmutex_t ips_igmp_slowtimeout_lock; /* Protected by mld_slowtimeout_lock */ timeout_id_t ips_mld_slowtimeout_id; kmutex_t ips_mld_slowtimeout_lock; /* IPv4 forwarding table */ struct radix_node_head *ips_ip_ftable; /* This is dynamically allocated in ip_ire_init */ struct irb *ips_ip_cache_table; #define IPV6_ABITS 128 #define IP6_MASK_TABLE_SIZE (IPV6_ABITS + 1) /* 129 ptrs */ struct irb *ips_ip_forwarding_table_v6[IP6_MASK_TABLE_SIZE]; /* This is dynamically allocated in ip_ire_init */ struct irb *ips_ip_cache_table_v6; uint32_t ips_ire_handle; /* * ire_ft_init_lock is used while initializing ip_forwarding_table * dynamically in ire_add. */ kmutex_t ips_ire_ft_init_lock; kmutex_t ips_ire_handle_lock; /* Protects ire_handle */ uint32_t ips_ip_cache_table_size; uint32_t ips_ip6_cache_table_size; uint32_t ips_ip6_ftable_hash_size; ire_stats_t ips_ire_stats_v4; /* IPv4 ire statistics */ ire_stats_t ips_ire_stats_v6; /* IPv6 ire statistics */ /* pending binds */ mblk_t *ips_ip6_asp_pending_ops; mblk_t *ips_ip6_asp_pending_ops_tail; /* Synchronize updates with table usage */ mblk_t *ips_ip6_asp_pending_update; /* pending table updates */ boolean_t ips_ip6_asp_uip; /* table update in progress */ kmutex_t ips_ip6_asp_lock; /* protect all the above */ uint32_t ips_ip6_asp_refcnt; /* outstanding references */ struct ip6_asp *ips_ip6_asp_table; /* The number of policy entries in the table */ uint_t ips_ip6_asp_table_count; int ips_ip_g_forward; int ips_ipv6_forward; int ips_ipmp_hook_emulation; /* ndd variable */ time_t ips_ip_g_frag_timeout; clock_t ips_ip_g_frag_timo_ms; queue_t *ips_ip_g_mrouter; /* Time since last icmp_pkt_err */ clock_t ips_icmp_pkt_err_last; /* Number of packets sent in burst */ uint_t ips_icmp_pkt_err_sent; /* Used by icmp_send_redirect_v6 for picking random src. */ uint_t ips_icmp_redirect_v6_src_index; /* Protected by ip_mi_lock */ void *ips_ip_g_head; /* Instance Data List Head */ caddr_t ips_ip_g_nd; /* Named Dispatch List Head */ /* Multirouting stuff */ /* Interval (in ms) between consecutive 'bad MTU' warnings */ hrtime_t ips_ip_multirt_log_interval; /* Time since last warning issued. */ hrtime_t ips_multirt_bad_mtu_last_time; struct cgtp_filter_ops *ips_ip_cgtp_filter_ops; /* CGTP hooks */ boolean_t ips_ip_cgtp_filter; /* Enable/disable CGTP hooks */ kmutex_t ips_ip_trash_timer_lock; timeout_id_t ips_ip_ire_expire_id; /* IRE expiration timer. */ struct ipsq_s *ips_ipsq_g_head; uint_t ips_ill_index; /* Used to assign interface indicies */ /* When set search for unused index */ boolean_t ips_ill_index_wrap; clock_t ips_ip_ire_arp_time_elapsed; /* Time since IRE cache last flushed */ clock_t ips_ip_ire_rd_time_elapsed; /* ... redirect IREs last flushed */ clock_t ips_ip_ire_pmtu_time_elapsed; /* Time since path mtu increase */ uint_t ips_ip_redirect_cnt; /* Num of redirect routes in ftable */ uint_t ips_ipv6_ire_default_count; /* Number of IPv6 IRE_DEFAULT entries */ uint_t ips_ipv6_ire_default_index; /* Walking IPv6 index used to mod in */ uint_t ips_loopback_packets; /* NDP/NCE structures for IPv4 and IPv6 */ struct ndp_g_s *ips_ndp4; struct ndp_g_s *ips_ndp6; /* ip_mroute stuff */ kmutex_t ips_ip_g_mrouter_mutex; struct mrtstat *ips_mrtstat; /* Stats for netstat */ int ips_saved_ip_g_forward; /* numvifs is only a hint about the max interface being used. */ ushort_t ips_numvifs; kmutex_t ips_numvifs_mutex; struct vif *ips_vifs; struct mfcb *ips_mfcs; /* kernel routing table */ struct tbf *ips_tbfs; /* * One-back cache used to locate a tunnel's vif, * given a datagram's src ip address. */ ipaddr_t ips_last_encap_src; struct vif *ips_last_encap_vif; kmutex_t ips_last_encap_lock; /* Protects the above */ /* * reg_vif_num is protected by numvifs_mutex */ /* Whether or not special PIM assert processing is enabled. */ ushort_t ips_reg_vif_num; /* Index to Register vif */ int ips_pim_assert; union ill_g_head_u *ips_ill_g_heads; /* ILL List Head */ kstat_t *ips_loopback_ksp; uint_t ips_ipif_src_random; struct idl_s *ips_conn_drain_list; /* Array of conn drain lists */ uint_t ips_conn_drain_list_cnt; /* Count of conn_drain_list */ int ips_conn_drain_list_index; /* Next drain_list */ /* * ID used to assign next free one. * Increases by one. Once it wraps we search for an unused ID. */ uint_t ips_ip_src_id; boolean_t ips_srcid_wrapped; struct srcid_map *ips_srcid_head; krwlock_t ips_srcid_lock; uint64_t ips_ipif_g_seqid; union phyint_list_u *ips_phyint_g_list; /* start of phyint list */ /* * Reflects value of FAILBACK variable in IPMP config file * /etc/default/mpathd. Default value is B_TRUE. * Set to B_FALSE if user disabled failback by configuring * "FAILBACK=no" in.mpathd uses SIOCSIPMPFAILBACK ioctl to pass this * information to kernel. */ boolean_t ips_ipmp_enable_failback; /* ip_neti.c */ hook_family_t ips_ipv4root; hook_family_t ips_ipv6root; /* * Hooks for firewalling */ hook_event_t ips_ip4_physical_in_event; hook_event_t ips_ip4_physical_out_event; hook_event_t ips_ip4_forwarding_event; hook_event_t ips_ip4_loopback_in_event; hook_event_t ips_ip4_loopback_out_event; hook_event_t ips_ip4_nic_events; hook_event_t ips_ip6_physical_in_event; hook_event_t ips_ip6_physical_out_event; hook_event_t ips_ip6_forwarding_event; hook_event_t ips_ip6_loopback_in_event; hook_event_t ips_ip6_loopback_out_event; hook_event_t ips_ip6_nic_events; hook_event_token_t ips_ipv4firewall_physical_in; hook_event_token_t ips_ipv4firewall_physical_out; hook_event_token_t ips_ipv4firewall_forwarding; hook_event_token_t ips_ipv4firewall_loopback_in; hook_event_token_t ips_ipv4firewall_loopback_out; hook_event_token_t ips_ipv4nicevents; hook_event_token_t ips_ipv6firewall_physical_in; hook_event_token_t ips_ipv6firewall_physical_out; hook_event_token_t ips_ipv6firewall_forwarding; hook_event_token_t ips_ipv6firewall_loopback_in; hook_event_token_t ips_ipv6firewall_loopback_out; hook_event_token_t ips_ipv6nicevents; net_data_t ips_ipv4_net_data; net_data_t ips_ipv6_net_data; }; typedef struct ip_stack ip_stack_t; /* Finding an ip_stack_t */ #define CONNQ_TO_IPST(_q) (Q_TO_CONN(_q)->conn_netstack->netstack_ip) #define ILLQ_TO_IPST(_q) (((ill_t *)(_q)->q_ptr)->ill_ipst) #else /* _KERNEL */ typedef int ip_stack_t; #endif /* _KERNEL */ #ifdef __cplusplus } #endif #endif /* _INET_IP_STACK_H */