/* * Copyright (c) 1992-1999 by Sun Microsystems, Inc. * All rights reserved. */ #ifndef _INET_TCP_H #define _INET_TCP_H #pragma ident "@(#)tcp.h 1.55 01/07/25 SMI" #ifdef __cplusplus extern "C" { #endif #include #include #include #include #include /* * Private (and possibly temporary) ioctl used by configuration code * to lock in the "default" stream for detached closes. */ #define TCP_IOC_DEFAULT_Q (('T' << 8) + 51) /* TCP states */ #define TCPS_CLOSED -6 #define TCPS_IDLE -5 /* idle (opened, but not bound) */ #define TCPS_BOUND -4 /* bound, ready to connect or accept */ #define TCPS_LISTEN -3 /* listening for connection */ #define TCPS_SYN_SENT -2 /* active, have sent syn */ #define TCPS_SYN_RCVD -1 /* have received syn (and sent ours) */ /* states < TCPS_ESTABLISHED are those where connections not established */ #define TCPS_ESTABLISHED 0 /* established */ #define TCPS_CLOSE_WAIT 1 /* rcvd fin, waiting for close */ /* states > TCPS_CLOSE_WAIT are those where user has closed */ #define TCPS_FIN_WAIT_1 2 /* have closed and sent fin */ #define TCPS_CLOSING 3 /* closed, xchd FIN, await FIN ACK */ #define TCPS_LAST_ACK 4 /* had fin and close; await FIN ACK */ /* states > TCPS_CLOSE_WAIT && < TCPS_FIN_WAIT_2 await ACK of FIN */ #define TCPS_FIN_WAIT_2 5 /* have closed, fin is acked */ #define TCPS_TIME_WAIT 6 /* in 2*msl quiet wait after close */ /* Bit values in 'th_flags' field of the TCP packet header */ #define TH_FIN 0x01 /* Sender will not send more */ #define TH_SYN 0x02 /* Synchronize sequence numbers */ #define TH_RST 0x04 /* Reset the connection */ #define TH_PSH 0x08 /* This segment requests a push */ #define TH_ACK 0x10 /* Acknowledgement field is valid */ #define TH_URG 0x20 /* Urgent pointer field is valid */ /* * Internal flags used in conjunction with the packet header flags above. * Used in tcp_rput to keep track of what needs to be done. */ #define TH_ACK_ACCEPTABLE 0x0400 #define TH_XMIT_NEEDED 0x0800 /* Window opened - send queued data */ #define TH_REXMIT_NEEDED 0x1000 /* Time expired for unacked data */ #define TH_ACK_NEEDED 0x2000 /* Send an ack now. */ #define TH_NEED_SACK_REXMIT 0x4000 /* Use SACK info to retransmission */ #define TH_TIMER_NEEDED 0x8000 /* Start the delayed ack/push bit timer */ #define TH_ORDREL_NEEDED 0x10000 /* Generate an ordrel indication */ #define TH_MARKNEXT_NEEDED 0x20000 /* Data should have MSGMARKNEXT */ #define TH_SEND_URP_MARK 0x40000 /* Send up tcp_urp_mark_mp */ /* * TCP sequence numbers are 32 bit integers operated * on with modular arithmetic. These macros can be * used to compare such integers. */ #define SEQ_LT(a, b) ((int32_t)((a)-(b)) < 0) #define SEQ_LEQ(a, b) ((int32_t)((a)-(b)) <= 0) #define SEQ_GT(a, b) ((int32_t)((a)-(b)) > 0) #define SEQ_GEQ(a, b) ((int32_t)((a)-(b)) >= 0) /* TCP Protocol header */ typedef struct tcphdr_s { uint8_t th_lport[2]; /* Source port */ uint8_t th_fport[2]; /* Destination port */ uint8_t th_seq[4]; /* Sequence number */ uint8_t th_ack[4]; /* Acknowledgement number */ uint8_t th_offset_and_rsrvd[1]; /* Offset to the packet data */ uint8_t th_flags[1]; uint8_t th_win[2]; /* Allocation number */ uint8_t th_sum[2]; /* TCP checksum */ uint8_t th_urp[2]; /* Urgent pointer */ } tcph_t; #define TCP_HDR_LENGTH(tcph) (((tcph)->th_offset_and_rsrvd[0] >>2) &(0xF << 2)) #define TCP_MAX_COMBINED_HEADER_LENGTH (60 + 60) /* Maxed out ip + tcp */ #define TCP_MAX_IP_OPTIONS_LENGTH (60 - IP_SIMPLE_HDR_LENGTH) #define TCP_MAX_HDR_LENGTH 60 #define TCP_MAX_TCP_OPTIONS_LENGTH (60 - sizeof (tcph_t)) #define TCP_MIN_HEADER_LENGTH 20 #define TCP_MAXWIN 65535 #define TCP_PORT_LEN sizeof (in_port_t) #define TCP_MAX_WINSHIFT 14 #define TCP_MAX_LARGEWIN (TCP_MAXWIN << TCP_MAX_WINSHIFT) #define TCPIP_HDR_LENGTH(mp, n) \ (n) = IPH_HDR_LENGTH((mp)->b_rptr), \ (n) += TCP_HDR_LENGTH((tcph_t *)&(mp)->b_rptr[(n)]) /* TCP Protocol header (used if the header is known to be 32-bit aligned) */ typedef struct tcphdra_s { in_port_t tha_lport; /* Source port */ in_port_t tha_fport; /* Destination port */ uint32_t tha_seq; /* Sequence number */ uint32_t tha_ack; /* Acknowledgement number */ uint8_t tha_offset_and_reserved; /* Offset to the packet data */ uint8_t tha_flags; uint16_t tha_win; /* Allocation number */ uint16_t tha_sum; /* TCP checksum */ uint16_t tha_urp; /* Urgent pointer */ } tcpha_t; struct tcp_base_s; /* * Control structure for each open TCP stream, * defined only within the kernel or for a kmem user. * NOTE: tcp_reinit_values MUST have a line for each field in this structure! */ #if (defined(_KERNEL) || defined(_KMEMUSER)) typedef struct tcp_s { struct tcp_s *tcp_listen_hash; /* Listen hash chain */ struct tcp_s **tcp_ptplhn; /* Pointer to previous listen hash next. */ struct tcp_s *tcp_acceptor_hash; /* Acceptor hash chain */ struct tcp_s **tcp_ptpahn; /* Pointer to previous accept hash next. */ queue_t *tcp_rq; /* Our upstream neighbor (client) */ queue_t *tcp_wq; /* Our downstream neighbor */ /* Fields arranged in approximate access order along main paths */ mblk_t *tcp_xmit_head; /* Head of rexmit list */ mblk_t *tcp_xmit_last; /* last valid data seen by tcp_wput */ uint32_t tcp_unsent; /* # of bytes in hand that are unsent */ mblk_t *tcp_xmit_tail; /* Last rexmit data sent */ uint32_t tcp_xmit_tail_unsent; /* # of unsent bytes in xmit_tail */ uint32_t tcp_suna; /* Sender unacknowledged */ uint32_t tcp_rexmit_nxt; /* Next rexmit seq num */ uint32_t tcp_rexmit_max; /* Max retran seq num */ int32_t tcp_snd_burst; /* Send burst factor */ uint32_t tcp_cwnd; /* Congestion window */ uint32_t tcp_cwnd_cnt; /* cwnd cnt in congestion avoidance */ uint32_t tcp_ibsegs; /* Inbound segments on this stream */ uint32_t tcp_obsegs; /* Outbound segments on this stream */ uint32_t tcp_naglim; /* Tunable nagle limit */ uint32_t tcp_valid_bits; #define TCP_ISS_VALID 0x1 /* Is the tcp_iss seq num active? */ #define TCP_FSS_VALID 0x2 /* Is the tcp_fss seq num active? */ #define TCP_URG_VALID 0x4 /* If the tcp_urg seq num active? */ #define TCP_OFO_FIN_VALID 0x8 /* Has TCP received an out of order FIN? */ int32_t tcp_xmit_hiwater; /* Send buffer high water mark. */ mblk_t *tcp_flow_mp; /* mp to exert flow control upstream */ mblk_t *tcp_timer_mp; /* Control block for timer service */ uchar_t tcp_timer_backoff; /* Backoff shift count. */ clock_t tcp_last_recv_time; /* Last time we receive a segment. */ clock_t tcp_dack_set_time; /* When delayed ACK timer is set. */ uint32_t tcp_urp_last_valid : 1, /* Is tcp_urp_last valid? */ tcp_hard_binding : 1, /* If we've started a full bind */ tcp_hard_bound : 1, /* If we've done a full bind with IP */ tcp_priv_stream : 1, /* If stream was opened by priv user */ tcp_fin_acked : 1, /* Has our FIN been acked? */ tcp_fin_rcvd : 1, /* Have we seen a FIN? */ tcp_fin_sent : 1, /* Have we sent our FIN yet? */ tcp_ordrel_done : 1, /* Have we sent the ord_rel upstream? */ tcp_flow_stopped : 1, /* Have we flow controlled xmitter? */ tcp_debug : 1, /* SO_DEBUG "socket" option. */ tcp_dontroute : 1, /* SO_DONTROUTE "socket" option. */ tcp_broadcast : 1, /* SO_BROADCAST "socket" option. */ tcp_useloopback : 1, /* SO_USELOOPBACK "socket" option. */ tcp_oobinline : 1, /* SO_OOBINLINE "socket" option. */ tcp_dgram_errind : 1, /* SO_DGRAM_ERRIND option */ tcp_detached : 1, /* If we're detached from a stream */ tcp_bind_pending : 1, /* Client is waiting for bind ack */ tcp_unbind_pending : 1, /* Client sent T_UNBIND_REQ */ tcp_deferred_clean_death : 1, /* defer tcp endpoint cleanup etc. */ tcp_co_wakeq_done : 1, /* A strwakeq() has been done */ tcp_co_wakeq_force : 1, /* A strwakeq() must be done */ tcp_co_norm : 1, /* In normal mode, putnext() done */ tcp_co_wakeq_need : 1, /* A strwakeq() needs to be done */ tcp_conn_def_q0: 1, /* move from q0 to q deferred */ tcp_tracing: 1, /* tracing is active for this stream */ tcp_linger : 1, /* SO_LINGER turned on */ tcp_zero_win_probe: 1, /* Zero win probing is in progress */ tcp_loopback: 1, /* src and dst are the same machine */ tcp_localnet: 1, /* src and dst are on the same subnet */ tcp_syn_defense: 1, /* For defense against SYN attack */ #define tcp_dontdrop tcp_syn_defense tcp_set_timer : 1, tcp_1_junk_fill_thru_bit_31 : 1; uint32_t tcp_active_open: 1, /* This is a active open */ tcp_timeout : 1, /* qbufcall failed, qtimeout pending */ tcp_ack_timer_running: 1, /* Delayed ACK timer running */ tcp_rexmit : 1, /* TCP is retransmitting */ tcp_snd_sack_ok : 1, /* Can use SACK for this connection */ tcp_bind_proxy_addr : 1, /* proxy addr is being used */ tcp_recvdstaddr : 1, /* return T_EXTCONN_IND with dst addr */ tcp_hwcksum : 1, /* The NIC is capable of hwcksum */ tcp_ip_forward_progress : 1, tcp_anon_priv_bind : 1, tcp_pad_to_bit_31 : 22; uint32_t tcp_if_mtu; /* Outgoing interface MTU. */ mblk_t *tcp_reass_head; /* Out of order reassembly list head */ mblk_t *tcp_reass_tail; /* Out of order reassembly list tail */ tcp_sack_info_t *tcp_sack_info; #define tcp_pipe tcp_sack_info->tcp_pipe #define tcp_fack tcp_sack_info->tcp_fack #define tcp_sack_snxt tcp_sack_info->tcp_sack_snxt #define tcp_max_sack_blk tcp_sack_info->tcp_max_sack_blk #define tcp_num_sack_blk tcp_sack_info->tcp_num_sack_blk #define tcp_sack_list tcp_sack_info->tcp_sack_list #define tcp_num_notsack_blk tcp_sack_info->tcp_num_notsack_blk #define tcp_cnt_notsack_list tcp_sack_info->tcp_cnt_notsack_list #define tcp_notsack_list tcp_sack_info->tcp_notsack_list mblk_t *tcp_rcv_list; /* Queued until push, urgent data, */ mblk_t *tcp_rcv_last_head; /* optdata, or the count exceeds */ mblk_t *tcp_rcv_last_tail; /* tcp_rcv_push_wait. */ uint32_t tcp_rcv_cnt; /* tcp_rcv_list is b_next chain. */ mblk_t *tcp_co_head; /* Co (copyout) queue head */ mblk_t *tcp_co_tail; /* " " " tail */ mblk_t *tcp_co_tmp; /* Co timer mblk */ /* * Note: tcp_co_imp is used to both indicate the read-side stream * data flow state (synchronous/asynchronous) as well as a * pointer to a reusable iocblk sized mblk. * * The mblk is allocated (if need be) at initialization time * and is used by the read-side when a copyout queue eligible * mblk arrives (synchronous data flow) but previously one or * more mblk(s) have been putnext()ed (asynchronous data flow). * In this case, the mblk pointed to by tcp_co_imp is putnext()ed * as an M_IOCTL of I_SYNCSTR after first nullifying tcp_co_imp. * The streamhead will putnext() the mblk down the write-side * stream as an M_IOCNAK of I_SYNCSTR and when (if) it arrives at * the write-side its pointer will be saved again in tcp_co_imp. * * If an instance of tcp is closed while its tcp_co_imp is null, * then the mblk will be freed elsewhere in the stream. Else, it * will be freed (close) or saved (reinit) for future use. */ mblk_t *tcp_co_imp; /* Co ioctl mblk */ clock_t tcp_co_tintrvl; /* Co timer interval */ uint32_t tcp_co_rnxt; /* Co seq we expect to recv next */ int tcp_co_cnt; /* Co enqueued byte count */ uint32_t tcp_cwnd_ssthresh; /* Congestion window */ uint32_t tcp_cwnd_max; uint32_t tcp_csuna; /* Clear (no rexmits in window) suna */ clock_t tcp_rtt_sa; /* Round trip smoothed average */ clock_t tcp_rtt_sd; /* Round trip smoothed deviation */ clock_t tcp_rtt_update; /* Round trip update(s) */ clock_t tcp_ms_we_have_waited; /* Total retrans time */ uint32_t tcp_swl1; /* These help us avoid using stale */ uint32_t tcp_swl2; /* packets to update state */ uint32_t tcp_rack; /* Seq # we have acked */ uint32_t tcp_rack_cnt; /* # of bytes we have deferred ack */ uint32_t tcp_rack_cur_max; /* # bytes we may defer ack for now */ uint32_t tcp_rack_abs_max; /* # of bytes we may defer ack ever */ mblk_t *tcp_ack_mp; /* Delayed ACK timer block */ uint32_t tcp_max_swnd; /* Maximum swnd we have seen */ struct tcp_s *tcp_listener; /* Our listener */ int32_t tcp_xmit_lowater; /* Send buffer low water mark. */ uint32_t tcp_irs; /* Initial recv seq num */ uint32_t tcp_fss; /* Final/fin send seq num */ uint32_t tcp_urg; /* Urgent data seq num */ clock_t tcp_first_timer_threshold; /* When to prod IP */ clock_t tcp_second_timer_threshold; /* When to give up completely */ clock_t tcp_first_ctimer_threshold; /* 1st threshold while connecting */ clock_t tcp_second_ctimer_threshold; /* 2nd ... while connecting */ int tcp_lingertime; /* Close linger time (in seconds) */ uint32_t tcp_urp_last; /* Last urp for which signal sent */ mblk_t *tcp_urp_mp; /* T_EXDATA_IND for urgent byte */ mblk_t *tcp_urp_mark_mp; /* zero-length marked/unmarked msg */ int tcp_conn_req_cnt_q0; /* # of conn reqs in SYN_RCVD */ int tcp_conn_req_cnt_q; /* # of conn reqs in ESTABLISHED */ int tcp_conn_req_max; /* # of ESTABLISHED conn reqs allowed */ t_scalar_t tcp_conn_req_seqnum; /* Incrementing pending conn req ID */ #define tcp_ip_addr_cache tcp_reass_tail /* Cache ip addresses that */ /* complete the 3-way handshake */ struct tcp_s *tcp_eager_next_q; /* next eager in ESTABLISHED state */ struct tcp_s *tcp_eager_last_q; /* last eager in ESTABLISHED state */ struct tcp_s *tcp_eager_next_q0; /* next eager in SYN_RCVD state */ struct tcp_s *tcp_eager_prev_q0; /* prev eager in SYN_RCVD state */ /* all eagers form a circular list */ uint32_t tcp_syn_rcvd_timeout; /* How many SYN_RCVD timeout in q0 */ union { mblk_t *tcp_eager_conn_ind; /* T_CONN_IND waiting for 3rd ack. */ mblk_t *tcp_opts_conn_req; /* T_CONN_REQ w/ options processed */ } tcp_conn; int32_t tcp_keepalive_intrvl; /* Zero means don't bother */ mblk_t *tcp_keepalive_mp; /* Timer block for keepalive */ int32_t tcp_client_errno; /* How the client screwed up */ char *tcp_iphc; /* Buffer holding tcp/ip hdr template */ int tcp_iphc_len; /* actual allocated buffer size */ int32_t tcp_hdr_len; /* Byte len of combined TCP/IP hdr */ ipha_t *tcp_ipha; /* IPv4 header in the buffer */ ip6_t *tcp_ip6h; /* IPv6 header in the buffer */ int tcp_ip_hdr_len; /* Byte len of our current IPvx hdr */ tcph_t *tcp_tcph; /* tcp header within combined hdr */ int32_t tcp_tcp_hdr_len; /* tcp header len within combined */ uint32_t tcp_sum; /* checksum to compensate for source */ /* routed packets. Host byte order */ uint16_t tcp_last_sent_len; /* Record length for nagle */ uint16_t tcp_dupack_cnt; /* # of consequtive duplicate acks */ kcondvar_t tcp_refcv; /* Wait for refcnt decrease */ kmutex_t *tcp_unused_lockp; /* Unused, for binary compat */ kmutex_t *tcp_listen_lockp; /* Ptr to tf_lock */ kmutex_t *tcp_conn_lockp; /* Ptr to tf_lock */ kmutex_t *tcp_acceptor_lockp; /* Ptr to tf_lock */ timeout_id_t tcp_ordrelid; /* qbufcall/qtimeout id */ t_uscalar_t tcp_acceptor_id; /* ACCEPTOR_id */ /* * tcp_ipsec_policy is set if a IPSEC_POLICY_SET mp is present * with the SYN. Used by accept() code to set policy on the newly * accepted connection. */ mblk_t *tcp_ipsec_policy; int tcp_ipsec_options_size; struct tcp_base_s *tcp_base; /* * Address family that app wishes returned addrsses to be in. * Currently taken from address family used in T_BIND_REQ, but * should really come from family used in original socket() call. * Value can be AF_INET or AF_INET6. */ uint_t tcp_family; /* * used for a quick test to determine if any ancillary bits are * set */ uint_t tcp_ipv6_recvancillary; /* Flags */ #define TCP_IPV6_RECVPKTINFO 0x01 /* IPV6_RECVPKTINFO option */ #define TCP_IPV6_RECVHOPLIMIT 0x02 /* IPV6_RECVHOPLIMIT option */ #define TCP_IPV6_RECVHOPOPTS 0x04 /* IPV6_RECVHOPOPTS option */ #define TCP_IPV6_RECVDSTOPTS 0x08 /* IPV6_RECVDSTOPTS option */ #define TCP_IPV6_RECVRTHDR 0x10 /* IPV6_RECVRTHDR option */ #define TCP_IPV6_RECVRTDSTOPTS 0x20 /* IPV6_RECVRTHDRDSTOPTS option */ uint_t tcp_recvifindex; /* Last received IPV6_RCVPKTINFO */ uint_t tcp_recvhops; /* Last received IPV6_RECVHOPLIMIT */ ip6_hbh_t *tcp_hopopts; /* Last received IPV6_RECVHOPOPTS */ ip6_dest_t *tcp_dstopts; /* Last received IPV6_RECVDSTOPTS */ ip6_dest_t *tcp_rtdstopts; /* Last recvd IPV6_RECVRTHDRDSTOPTS */ ip6_rthdr_t *tcp_rthdr; /* Last received IPV6_RECVRTHDR */ uint_t tcp_hopoptslen; uint_t tcp_dstoptslen; uint_t tcp_rtdstoptslen; uint_t tcp_rthdrlen; uint_t tcp_drop_opt_ack_cnt; /* # tcp generated optmgmt */ ip6_pkt_t tcp_sticky_ipp; /* Sticky options */ #define tcp_ipp_fields tcp_sticky_ipp.tcp_ipp_fields /* valid fields */ #define tcp_ipp_ifindex tcp_sticky_ipp.tcp_ipp_ifindex /* pktinfo ifindex */ #define tcp_ipp_addr tcp_sticky_ipp.tcp_ipp_addr /* pktinfo src/dst addr */ #define tcp_ipp_hoplimit tcp_sticky_ipp.tcp_ipp_hoplimit #define tcp_ipp_hopoptslen tcp_sticky_ipp.tcp_ipp_hopoptslen #define tcp_ipp_rtdstoptslen tcp_sticky_ipp.tcp_ipp_rtdstoptslen #define tcp_ipp_rthdrlen tcp_sticky_ipp.tcp_ipp_rthdrlen #define tcp_ipp_dstoptslen tcp_sticky_ipp.tcp_ipp_dstoptslen #define tcp_ipp_hopopts tcp_sticky_ipp.tcp_ipp_hopopts #define tcp_ipp_rtdstopts tcp_sticky_ipp.tcp_ipp_rtdstopts #define tcp_ipp_rthdr tcp_sticky_ipp.tcp_ipp_rthdr #define tcp_ipp_dstopts tcp_sticky_ipp.tcp_ipp_dstopts #define tcp_ipp_nexthop tcp_sticky_ipp.tcp_ipp_nexthop uint32_t tcp_ofo_fin_seq; /* Recv out of order FIN seq num */ } tcp_t; /* * Adding a new field to tcp_t or tcpb_t : * If the information represented by the field is required even in the * TIME_WAIT state, it must be part of tcpb_t. Otherwise it must be part * of tcp_t. In other words, the tcp_t captures the information that is * not required, after a connection has entered the TIME_WAIT state. */ typedef struct tcp_base_s { struct tcp_base_s *tcpb_bind_hash; /* Bind hash chain */ struct tcp_base_s **tcpb_ptpbhn; /* Pointer to previous bind hash next. */ struct tcp_base_s *tcpb_conn_hash; /* Connect hash chain */ struct tcp_base_s **tcpb_ptpchn; /* Pointer to previous conn hash next. */ struct tcp_base_s *tcpb_time_wait_next; /* Pointer to next T/W block */ struct tcp_base_s *tcpb_time_wait_prev; /* Pointer to previous T/W next */ clock_t tcpb_time_wait_expire; /* time in hz when t/w expires */ clock_t tcpb_last_rcv_lbolt; /* lbolt on last packet, used for PAWS */ int32_t tcpb_state; int32_t tcpb_rcv_ws; /* My window scale power */ int32_t tcpb_snd_ws; /* Sender's window scale power */ uint32_t tcpb_ts_recent; /* Timestamp of earliest unacked */ /* data segment */ clock_t tcpb_rto; /* Round trip timeout */ uint32_t tcpb_snd_ts_ok : 1, tcpb_snd_ws_ok : 1, tcpb_is_secure : 1, tcpb_reuseaddr : 1, /* SO_REUSEADDR "socket" option. */ tcpb_exclbind : 1, /* ``exclusive'' binding */ tcpb_reserved_port : 1, tcpb_junk_fill_thru_bit_31 : 26; uint32_t tcpb_snxt; /* Senders next seq num */ uint32_t tcpb_swnd; /* Senders window (relative to suna) */ uint32_t tcpb_mss; /* Max segment size */ uint32_t tcpb_iss; /* Initial send seq num */ uint32_t tcpb_rnxt; /* Seq we expect to recv next */ uint32_t tcpb_rwnd; /* Current receive window */ kmutex_t tcpb_reflock; /* Protects tcp_refcnt */ ushort_t tcpb_refcnt; /* Number of pending upstream msg */ union { struct { uchar_t v4_ttl; /* Dup of tcp_ipha.iph_type_of_service */ uchar_t v4_tos; /* Dup of tcp_ipha.iph_ttl */ } v4_hdr_info; struct { uint_t v6_vcf; /* Dup of tcp_ip6h.ip6h_vcf */ uchar_t v6_hops; /* Dup of tcp_ip6h.ip6h_hops */ } v6_hdr_info; } tcpb_hdr_info; #define tcpb_ttl tcpb_hdr_info.v4_hdr_info.v4_ttl #define tcpb_tos tcpb_hdr_info.v4_hdr_info.v4_tos #define tcpb_ip6_vcf tcpb_hdr_info.v6_hdr_info.v6_vcf #define tcpb_ip6_hops tcpb_hdr_info.v6_hdr_info.v6_hops in6_addr_t tcpb_remote_v6; /* true remote address - needed for */ /* source routing. */ in6_addr_t tcpb_bound_source_v6; /* IP address in bind_req */ in6_addr_t tcpb_ip_src_v6; /* same as tcp_iph.iph_src. */ #ifdef _KERNEL /* Note: V4_PART_OF_V6 is meant to be used only for _KERNEL defined stuff */ #define tcpb_remote V4_PART_OF_V6(tcpb_remote_v6) #define tcpb_bound_source V4_PART_OF_V6(tcpb_bound_source_v6) #define tcpb_ip_src V4_PART_OF_V6(tcpb_ip_src_v6) #endif /* _KERNEL */ /* * These fields contain the same information as tcp_tcph->th_*port. * However, the lookup functions can not use the header fields * since during IP option manipulation the tcp_tcph pointer * changes. */ union { struct { in_port_t tcpu_fport; /* Remote port */ in_port_t tcpu_lport; /* Local port */ } tcpu_ports1; uint32_t tcpu_ports2; /* Rem port, */ /* local port */ /* Used for TCP_MATCH performance */ } tcpb_tcpu; #define tcpb_fport tcpb_tcpu.tcpu_ports1.tcpu_fport #define tcpb_lport tcpb_tcpu.tcpu_ports1.tcpu_lport #define tcpb_ports tcpb_tcpu.tcpu_ports2 /* * IP sends back 2 mblks with the unbind ACK for handling * IPSEC policy for detached connections. Following two fields * are initialized then. */ mblk_t *tcpb_ipsec_out; mblk_t *tcpb_ipsec_req_in; tcp_t *tcpb_tcp; /* * IP format that packets transmitted from this struct should use. * Value can be IPV4_VERSION or IPV6_VERSION. Determines whether * IP+TCP header template above stores an IPv4 or IPv6 header. */ ushort_t tcpb_ipversion; uint_t tcpb_bound_if; /* IPV6_BOUND_IF */ uid_t tcpb_ownerid; /* uid of process that did open */ #define tcp_bind_hash tcp_base->tcpb_bind_hash #define tcp_ptpbhn tcp_base->tcpb_ptpbhn #define tcp_conn_hash tcp_base->tcpb_conn_hash #define tcp_ptpchn tcp_base->tcpb_ptpchn #define tcp_time_wait_next tcp_base->tcpb_time_wait_next #define tcp_time_wait_prev tcp_base->tcpb_time_wait_prev #define tcp_time_wait_expire tcp_base->tcpb_time_wait_expire #define tcp_last_rcv_lbolt tcp_base->tcpb_last_rcv_lbolt #define tcp_state tcp_base->tcpb_state #define tcp_rcv_ws tcp_base->tcpb_rcv_ws #define tcp_snd_ws tcp_base->tcpb_snd_ws #define tcp_ts_recent tcp_base->tcpb_ts_recent #define tcp_rto tcp_base->tcpb_rto #define tcp_snd_ts_ok tcp_base->tcpb_snd_ts_ok #define tcp_snd_ws_ok tcp_base->tcpb_snd_ws_ok #define tcp_is_secure tcp_base->tcpb_is_secure #define tcp_snxt tcp_base->tcpb_snxt #define tcp_swnd tcp_base->tcpb_swnd #define tcp_mss tcp_base->tcpb_mss #define tcp_iss tcp_base->tcpb_iss #define tcp_rnxt tcp_base->tcpb_rnxt #define tcp_rwnd tcp_base->tcpb_rwnd #define tcp_reflock tcp_base->tcpb_reflock #define tcp_refcnt tcp_base->tcpb_refcnt #define tcp_remote_v6 tcp_base->tcpb_remote_v6 #define tcp_remote tcp_base->tcpb_remote #define tcp_bound_source_v6 tcp_base->tcpb_bound_source_v6 #define tcp_bound_source tcp_base->tcpb_bound_source #define tcp_lport tcp_base->tcpb_tcpu.tcpu_ports1.tcpu_lport #define tcp_fport tcp_base->tcpb_tcpu.tcpu_ports1.tcpu_fport #define tcp_ports tcp_base->tcpb_tcpu.tcpu_ports2 #define tcp_ipsec_out tcp_base->tcpb_ipsec_out #define tcp_ipsec_req_in tcp_base->tcpb_ipsec_req_in #define tcp_ipversion tcp_base->tcpb_ipversion #define tcp_bound_if tcp_base->tcpb_bound_if #define tcp_reuseaddr tcp_base->tcpb_reuseaddr #define tcp_exclbind tcp_base->tcpb_exclbind #define tcp_ownerid tcp_base->tcpb_ownerid } tcpb_t; #endif /* (defined(_KERNEL) || defined(_KMEMUSER)) */ /* Contract private interface between TCP and Clustering. */ #define CL_TCPI_V1 1 /* cl_tcpi_version number */ typedef struct cl_tcp_info_s { ushort_t cl_tcpi_version; /* cl_tcp_info_t's version no */ ushort_t cl_tcpi_ipversion; /* IP version */ int32_t cl_tcpi_state; /* TCP state */ in_port_t cl_tcpi_lport; /* Local port */ in_port_t cl_tcpi_fport; /* Remote port */ in6_addr_t cl_tcpi_laddr_v6; /* Local IP address */ in6_addr_t cl_tcpi_faddr_v6; /* Remote IP address */ #ifdef _KERNEL /* Note: V4_PART_OF_V6 is meant to be used only for _KERNEL defined stuff */ #define cl_tcpi_laddr V4_PART_OF_V6(cl_tcpi_laddr_v6) #define cl_tcpi_faddr V4_PART_OF_V6(cl_tcpi_faddr_v6) #endif /* _KERNEL */ } cl_tcp_info_t; /* ioctl command for aborting TCP connections. */ #define TCP_IOC_ABORT_CONN (('T' << 8) + 91) /* structure used by the above ioctl command. */ typedef struct tcp_ioc_abort_conn_s { struct sockaddr_storage ac_local; /* local addr and port */ struct sockaddr_storage ac_remote; /* remote addr and port */ int32_t ac_start; /* start state */ int32_t ac_end; /* end state */ } tcp_ioc_abort_conn_t; #ifdef __cplusplus } #endif #endif /* _INET_TCP_H */