tcp.h revision 9cd928fe5e3ea4e05f64cfb380beb54b2623e7dc
/*
* 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 (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/* Copyright (c) 1990 Mentat Inc. */
#ifndef _INET_TCP_H
#define _INET_TCP_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/inttypes.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <sys/socket.h>
#include <sys/socket_proto.h>
#include <sys/md5.h>
#include <inet/common.h>
#include <inet/ip.h>
#include <inet/ip6.h>
#include <inet/mi.h>
#include <inet/mib2.h>
#include <inet/tcp_stack.h>
#include <inet/tcp_sack.h>
#include <inet/kssl/ksslapi.h>
/* 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 */
/*
* Internal flags used in conjunction with the packet header flags.
* Used in tcp_input_data to keep track of what needs to be done.
*/
#define TH_LIMIT_XMIT 0x0400 /* Limited xmit is needed */
#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_ACK_TIMER_NEEDED 0x8000 /* Start the delayed ACK 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_t *)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 (tcpha_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 TCP_MAX_LSO_LENGTH (IP_MAXPACKET - TCP_MAX_COMBINED_HEADER_LENGTH)
#define TCPIP_HDR_LENGTH(mp, n) \
(n) = IPH_HDR_LENGTH((mp)->b_rptr), \
(n) += TCP_HDR_LENGTH((tcpha_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 conn_s;
struct tcp_listen_cnt_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_time_wait_next;
/* Pointer to next T/W block */
struct tcp_s *tcp_time_wait_prev;
/* Pointer to previous T/W next */
int64_t tcp_time_wait_expire;
struct conn_s *tcp_connp; /* back pointer to conn_t */
tcp_stack_t *tcp_tcps; /* back pointer to tcp_stack_t */
int32_t tcp_state;
int32_t tcp_rcv_ws; /* My window scale power */
int32_t tcp_snd_ws; /* Sender's window scale power */
uint32_t tcp_ts_recent; /* Timestamp of earliest unacked */
/* data segment */
clock_t tcp_rto; /* Round trip timeout */
clock_t tcp_last_rcv_lbolt;
/* lbolt on last packet, used for PAWS */
uint32_t tcp_snxt; /* Senders next seq num */
uint32_t tcp_swnd; /* Senders window (relative to suna) */
uint32_t tcp_mss; /* Max segment size */
uint32_t tcp_iss; /* Initial send seq num */
uint32_t tcp_rnxt; /* Seq we expect to recv next */
uint32_t tcp_rwnd;
/* Fields arranged in approximate access order along main paths */
mblk_t *tcp_xmit_head; /* Head of xmit/rexmit list */
mblk_t *tcp_xmit_last; /* Last valid data seen by tcp_wput */
mblk_t *tcp_xmit_tail; /* Last data sent */
uint32_t tcp_unsent; /* # of bytes in hand that are unsent */
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 */
int32_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 /* Is the tcp_urg seq num active? */
#define TCP_OFO_FIN_VALID 0x8 /* Has TCP received an out of order FIN? */
timeout_id_t tcp_timer_tid; /* Control block for timer service */
uchar_t tcp_timer_backoff; /* Backoff shift count. */
int64_t tcp_last_recv_time; /* Last time we receive a segment. */
uint32_t tcp_init_cwnd; /* Initial cwnd (start/restart) */
/* Following manipulated by TCP under squeue protection */
uint32_t
tcp_urp_last_valid : 1, /* Is tcp_urp_last valid? */
tcp_hard_binding : 1, /* TCP_DETACHED_NONEAGER */
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_detached : 1, /* If we're detached from a stream */
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_active_open: 1, /* This is a active open */
tcp_rexmit : 1, /* TCP is retransmitting */
tcp_snd_sack_ok : 1, /* Can use SACK for this connection */
tcp_hwcksum : 1, /* The NIC is capable of hwcksum */
tcp_ip_forward_progress : 1,
tcp_ecn_ok : 1, /* Can use ECN for this connection */
tcp_ecn_echo_on : 1, /* Need to do ECN echo */
tcp_ecn_cwr_sent : 1, /* ECN_CWR has been sent */
tcp_cwr : 1, /* Cwnd has reduced recently */
tcp_pad_to_bit31 : 11;
/* Following manipulated by TCP under squeue protection */
uint32_t
tcp_snd_ts_ok : 1,
tcp_snd_ws_ok : 1,
tcp_reserved_port : 1,
tcp_in_free_list : 1,
tcp_snd_zcopy_on : 1, /* xmit zero-copy enabled */
tcp_snd_zcopy_aware : 1, /* client is zero-copy aware */
tcp_xmit_zc_clean : 1, /* the xmit list is free of zc-mblk */
tcp_wait_for_eagers : 1, /* Wait for eagers to disappear */
tcp_accept_error : 1, /* Error during TLI accept */
tcp_send_discon_ind : 1, /* TLI accept err, send discon ind */
tcp_cork : 1, /* tcp_cork option */
tcp_tconnind_started : 1, /* conn_ind message is being sent */
tcp_lso :1, /* Lower layer is capable of LSO */
tcp_is_wnd_shrnk : 1, /* Window has shrunk */
tcp_pad_to_bit_31 : 18;
uint32_t tcp_initial_pmtu; /* Initial outgoing Path MTU. */
mblk_t *tcp_reass_head; /* Out of order reassembly list head */
mblk_t *tcp_reass_tail; /* Out of order reassembly list tail */
/* SACK related info */
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. */
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 segs we have deferred ack */
uint32_t tcp_rack_cur_max; /* # of segs we may defer ack for now */
uint32_t tcp_rack_abs_max; /* # of segs we may defer ack ever */
timeout_id_t tcp_ack_tid; /* Delayed ACK timer ID */
timeout_id_t tcp_push_tid; /* Push timer ID */
uint32_t tcp_max_swnd; /* Maximum swnd we have seen */
struct tcp_s *tcp_listener; /* Our listener */
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 */
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 */
kmutex_t tcp_eager_lock;
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 */
boolean_t tcp_conn_def_q0; /* move from q0 to q deferred */
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;
uint32_t tcp_syn_rcvd_timeout; /* How many SYN_RCVD timeout in q0 */
/* TCP Keepalive Timer members */
int32_t tcp_ka_last_intrvl; /* Last probe interval */
timeout_id_t tcp_ka_tid; /* Keepalive timer ID */
uint32_t tcp_ka_interval; /* Keepalive interval */
uint32_t tcp_ka_abort_thres; /* Keepalive abort threshold */
int32_t tcp_client_errno; /* How the client screwed up */
/*
* The header template lives in conn_ht_iphc allocated by tcp_build_hdrs
* We maintain three pointers into conn_ht_iphc.
*/
ipha_t *tcp_ipha; /* IPv4 header in conn_ht_iphc */
ip6_t *tcp_ip6h; /* IPv6 header in conn_ht_iphc */
tcpha_t *tcp_tcpha; /* TCP header in conn_ht_iphc */
uint16_t tcp_last_sent_len; /* Record length for nagle */
uint16_t tcp_last_recv_len; /* Used by DTrace */
uint16_t tcp_dupack_cnt; /* # of consequtive duplicate acks */
kmutex_t *tcp_acceptor_lockp; /* Ptr to tf_lock */
mblk_t *tcp_ordrel_mp; /* T_ordrel_ind mblk */
t_uscalar_t tcp_acceptor_id; /* ACCEPTOR_id */
int tcp_ipsec_overhead;
uint_t tcp_recvifindex; /* Last received IPV6_RCVPKTINFO */
uint_t tcp_recvhops; /* Last received IPV6_RECVHOPLIMIT */
uint_t tcp_recvtclass; /* Last received IPV6_RECVTCLASS */
ip6_hbh_t *tcp_hopopts; /* Last received IPV6_RECVHOPOPTS */
ip6_dest_t *tcp_dstopts; /* Last received IPV6_RECVDSTOPTS */
ip6_dest_t *tcp_rthdrdstopts; /* Last recv IPV6_RECVRTHDRDSTOPTS */
ip6_rthdr_t *tcp_rthdr; /* Last received IPV6_RECVRTHDR */
uint_t tcp_hopoptslen;
uint_t tcp_dstoptslen;
uint_t tcp_rthdrdstoptslen;
uint_t tcp_rthdrlen;
mblk_t *tcp_timercache;
kmutex_t tcp_closelock;
kcondvar_t tcp_closecv;
uint8_t tcp_closed;
uint8_t tcp_closeflags;
mblk_t tcp_closemp;
timeout_id_t tcp_linger_tid; /* Linger timer ID */
struct tcp_s *tcp_acceptor_hash; /* Acceptor hash chain */
struct tcp_s **tcp_ptpahn; /* Pointer to previous accept hash next. */
struct tcp_s *tcp_bind_hash; /* Bind hash chain */
struct tcp_s *tcp_bind_hash_port; /* tcp_t's bound to the same lport */
struct tcp_s **tcp_ptpbhn;
uint_t tcp_maxpsz_multiplier;
uint32_t tcp_lso_max; /* maximum LSO payload */
uint32_t tcp_ofo_fin_seq; /* Recv out of order FIN seq num */
uint32_t tcp_cwr_snd_max;
struct tcp_s *tcp_saved_listener; /* saved value of listener */
uint32_t tcp_in_ack_unsent; /* ACK for unsent data cnt. */
/*
* All fusion-related fields are protected by squeue.
*/
struct tcp_s *tcp_loopback_peer; /* peer tcp for loopback */
mblk_t *tcp_fused_sigurg_mp; /* M_PCSIG mblk for SIGURG */
uint32_t
tcp_fused : 1, /* loopback tcp in fusion mode */
tcp_unfusable : 1, /* fusion not allowed on endpoint */
tcp_fused_sigurg : 1, /* send SIGURG upon draining */
tcp_fuse_to_bit_31 : 29;
kmutex_t tcp_non_sq_lock;
/*
* This variable is accessed without any lock protection
* and therefore must not be declared as a bit field along
* with the rest which require such condition.
*/
boolean_t tcp_issocket; /* this is a socket tcp */
/* protected by the tcp_non_sq_lock lock */
uint32_t tcp_squeue_bytes;
/*
* Kernel SSL session information
*/
boolean_t tcp_kssl_pending; /* waiting for 1st SSL rec. */
boolean_t tcp_kssl_inhandshake; /* during SSL handshake */
kssl_ent_t tcp_kssl_ent; /* SSL table entry */
kssl_ctx_t tcp_kssl_ctx; /* SSL session */
/*
* tcp_closemp_used is protected by listener's tcp_eager_lock
* when used for eagers. When used for a tcp in TIME_WAIT state
* or in tcp_close(), it is not protected by any lock as we
* do not expect any other thread to use it concurrently.
* We do allow re-use of tcp_closemp in tcp_time_wait_collector()
* and tcp_close() but not concurrently.
*/
boolean_t tcp_closemp_used;
/*
* previous and next eagers in the list of droppable eagers. See
* the comments before MAKE_DROPPABLE(). These pointers are
* protected by listener's tcp_eager_lock.
*/
struct tcp_s *tcp_eager_prev_drop_q0;
struct tcp_s *tcp_eager_next_drop_q0;
/*
* Have we flow controlled xmitter?
* This variable can be modified outside the squeue and hence must
* not be declared as a bit field along with the rest that are
* modified only within the squeue.
* protected by the tcp_non_sq_lock lock.
*/
boolean_t tcp_flow_stopped;
/*
* Sender's next sequence number at the time the window was shrunk.
*/
uint32_t tcp_snxt_shrunk;
/*
* Socket generation number which is bumped when a connection attempt
* is initiated. Its main purpose is to ensure that the socket does not
* miss the asynchronous connected/disconnected notification.
*/
sock_connid_t tcp_connid;
/* mblk_t used to enter TCP's squeue from the service routine. */
mblk_t *tcp_rsrv_mp;
/* Mutex for accessing tcp_rsrv_mp */
kmutex_t tcp_rsrv_mp_lock;
/* For connection counting. */
struct tcp_listen_cnt_s *tcp_listen_cnt;
/* Segment reassembly timer. */
timeout_id_t tcp_reass_tid;
#ifdef DEBUG
pc_t tcmp_stk[15];
#endif
} tcp_t;
#ifdef DEBUG
#define TCP_DEBUG_GETPCSTACK(buffer, depth) ((void) getpcstack(buffer, \
depth))
#else
#define TCP_DEBUG_GETPCSTACK(buffer, depth)
#endif
extern void tcp_conn_reclaim(void *);
extern void tcp_free(tcp_t *tcp);
extern void tcp_ddi_g_init(void);
extern void tcp_ddi_g_destroy(void);
extern void *tcp_get_conn(void *arg, tcp_stack_t *);
extern mblk_t *tcp_snmp_get(queue_t *, mblk_t *);
extern int tcp_snmp_set(queue_t *, int, int, uchar_t *, int len);
/*
* The TCP Fanout structure for bind and acceptor hashes.
* The hash tables and their linkage (tcp_*_hash, tcp_ptp*hn) are
* protected by the per-bucket tf_lock. Each tcp_t
* inserted in the list points back at this lock using tcp_*_lockp.
*
* The bind and acceptor hash queues are lists of tcp_t.
*/
/* listener hash and acceptor hash queue head */
typedef struct tf_s {
tcp_t *tf_tcp;
kmutex_t tf_lock;
} tf_t;
/* Also used in ipclassifier.c */
extern struct kmem_cache *tcp_sack_info_cache;
#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;
/*
* Hook functions to enable cluster networking
* On non-clustered systems these vectors must always be NULL.
*/
extern void (*cl_inet_listen)(netstackid_t, uint8_t, sa_family_t,
uint8_t *, in_port_t, void *);
extern void (*cl_inet_unlisten)(netstackid_t, uint8_t, sa_family_t,
uint8_t *, in_port_t, void *);
/*
* Contracted Consolidation Private ioctl for aborting TCP connections.
* In order to keep the offsets and size of the structure the same between
* a 32-bit application and a 64-bit amd64 kernel, we use a #pragma
* pack(4).
*/
#define TCP_IOC_ABORT_CONN (('T' << 8) + 91)
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
#pragma pack(4)
#endif
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 */
int32_t ac_zoneid; /* zoneid */
} tcp_ioc_abort_conn_t;
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
#pragma pack()
#endif
#ifdef __cplusplus
}
#endif
#endif /* _INET_TCP_H */