242 lines
8.7 KiB
D
242 lines
8.7 KiB
D
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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* $FreeBSD$
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*/
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/*
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* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2013 Mark Johnston <markj@freebsd.org>
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*/
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#pragma D depends_on library ip.d
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#pragma D depends_on provider tcp
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/*
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* Convert a TCP state value to a string.
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*/
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#pragma D binding "1.0" TCPS_CLOSED
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inline int TCPS_CLOSED = 0;
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#pragma D binding "1.0" TCPS_LISTEN
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inline int TCPS_LISTEN = 1;
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#pragma D binding "1.0" TCPS_SYN_SENT
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inline int TCPS_SYN_SENT = 2;
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#pragma D binding "1.0" TCPS_SYN_RECEIVED
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inline int TCPS_SYN_RECEIVED = 3;
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#pragma D binding "1.0" TCPS_ESTABLISHED
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inline int TCPS_ESTABLISHED = 4;
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#pragma D binding "1.0" TCPS_CLOSE_WAIT
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inline int TCPS_CLOSE_WAIT = 5;
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#pragma D binding "1.0" TCPS_FIN_WAIT_1
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inline int TCPS_FIN_WAIT_1 = 6;
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#pragma D binding "1.0" TCPS_CLOSING
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inline int TCPS_CLOSING = 7;
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#pragma D binding "1.0" TCPS_LAST_ACK
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inline int TCPS_LAST_ACK = 8;
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#pragma D binding "1.0" TCPS_FIN_WAIT_2
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inline int TCPS_FIN_WAIT_2 = 9;
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#pragma D binding "1.0" TCPS_TIME_WAIT
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inline int TCPS_TIME_WAIT = 10;
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/* TCP segment flags. */
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#pragma D binding "1.0" TH_FIN
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inline uint8_t TH_FIN = 0x01;
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#pragma D binding "1.0" TH_SYN
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inline uint8_t TH_SYN = 0x02;
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#pragma D binding "1.0" TH_RST
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inline uint8_t TH_RST = 0x04;
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#pragma D binding "1.0" TH_PUSH
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inline uint8_t TH_PUSH = 0x08;
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#pragma D binding "1.0" TH_ACK
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inline uint8_t TH_ACK = 0x10;
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#pragma D binding "1.0" TH_URG
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inline uint8_t TH_URG = 0x20;
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#pragma D binding "1.0" TH_ECE
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inline uint8_t TH_ECE = 0x40;
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#pragma D binding "1.0" TH_CWR
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inline uint8_t TH_CWR = 0x80;
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/* TCP connection state strings. */
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#pragma D binding "1.0" tcp_state_string
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inline string tcp_state_string[int32_t state] =
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state == TCPS_CLOSED ? "state-closed" :
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state == TCPS_LISTEN ? "state-listen" :
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state == TCPS_SYN_SENT ? "state-syn-sent" :
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state == TCPS_SYN_RECEIVED ? "state-syn-received" :
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state == TCPS_ESTABLISHED ? "state-established" :
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state == TCPS_CLOSE_WAIT ? "state-close-wait" :
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state == TCPS_FIN_WAIT_1 ? "state-fin-wait-1" :
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state == TCPS_CLOSING ? "state-closing" :
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state == TCPS_LAST_ACK ? "state-last-ack" :
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state == TCPS_FIN_WAIT_2 ? "state-fin-wait-2" :
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state == TCPS_TIME_WAIT ? "state-time-wait" :
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"<unknown>";
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/*
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* tcpsinfo contains stable TCP details from tcp_t.
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*/
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typedef struct tcpsinfo {
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uintptr_t tcps_addr;
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int tcps_local; /* is delivered locally, boolean */
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int tcps_active; /* active open (from here), boolean */
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uint16_t tcps_lport; /* local port */
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uint16_t tcps_rport; /* remote port */
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string tcps_laddr; /* local address, as a string */
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string tcps_raddr; /* remote address, as a string */
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int32_t tcps_state; /* TCP state */
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uint32_t tcps_iss; /* Initial sequence # sent */
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uint32_t tcps_suna; /* sequence # sent but unacked */
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uint32_t tcps_snxt; /* next sequence # to send */
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uint32_t tcps_rack; /* sequence # we have acked */
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uint32_t tcps_rnxt; /* next sequence # expected */
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uint32_t tcps_swnd; /* send window size */
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int32_t tcps_snd_ws; /* send window scaling */
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uint32_t tcps_rwnd; /* receive window size */
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int32_t tcps_rcv_ws; /* receive window scaling */
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uint32_t tcps_cwnd; /* congestion window */
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uint32_t tcps_cwnd_ssthresh; /* threshold for congestion avoidance */
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uint32_t tcps_sack_fack; /* SACK sequence # we have acked */
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uint32_t tcps_sack_snxt; /* next SACK seq # for retransmission */
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uint32_t tcps_rto; /* round-trip timeout, msec */
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uint32_t tcps_mss; /* max segment size */
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int tcps_retransmit; /* retransmit send event, boolean */
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} tcpsinfo_t;
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/*
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* tcplsinfo provides the old tcp state for state changes.
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*/
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typedef struct tcplsinfo {
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int32_t tcps_state; /* previous TCP state */
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} tcplsinfo_t;
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/*
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* tcpinfo is the TCP header fields.
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*/
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typedef struct tcpinfo {
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uint16_t tcp_sport; /* source port */
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uint16_t tcp_dport; /* destination port */
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uint32_t tcp_seq; /* sequence number */
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uint32_t tcp_ack; /* acknowledgment number */
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uint8_t tcp_offset; /* data offset, in bytes */
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uint8_t tcp_flags; /* flags */
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uint16_t tcp_window; /* window size */
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uint16_t tcp_checksum; /* checksum */
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uint16_t tcp_urgent; /* urgent data pointer */
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struct tcphdr *tcp_hdr; /* raw TCP header */
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} tcpinfo_t;
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/*
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* A clone of tcpinfo_t used to handle the fact that the TCP input path
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* overwrites some fields of the TCP header with their host-order equivalents.
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* Unfortunately, DTrace doesn't let us simply typedef a new name for struct
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* tcpinfo and define a separate translator for it.
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*/
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typedef struct tcpinfoh {
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uint16_t tcp_sport; /* source port */
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uint16_t tcp_dport; /* destination port */
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uint32_t tcp_seq; /* sequence number */
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uint32_t tcp_ack; /* acknowledgment number */
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uint8_t tcp_offset; /* data offset, in bytes */
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uint8_t tcp_flags; /* flags */
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uint16_t tcp_window; /* window size */
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uint16_t tcp_checksum; /* checksum */
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uint16_t tcp_urgent; /* urgent data pointer */
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struct tcphdr *tcp_hdr; /* raw TCP header */
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} tcpinfoh_t;
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#pragma D binding "1.0" translator
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translator csinfo_t < struct tcpcb *p > {
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cs_addr = NULL;
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cs_cid = (uint64_t)(p == NULL ? 0 : p->t_inpcb);
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cs_pid = 0;
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cs_zoneid = 0;
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};
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#pragma D binding "1.0" translator
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translator tcpsinfo_t < struct tcpcb *p > {
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tcps_addr = (uintptr_t)p;
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tcps_local = -1; /* XXX */
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tcps_active = -1; /* XXX */
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tcps_lport = p == NULL ? 0 : ntohs(p->t_inpcb->inp_inc.inc_ie.ie_lport);
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tcps_rport = p == NULL ? 0 : ntohs(p->t_inpcb->inp_inc.inc_ie.ie_fport);
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tcps_laddr = p == NULL ? 0 :
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p->t_inpcb->inp_vflag == INP_IPV4 ?
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inet_ntoa(&p->t_inpcb->inp_inc.inc_ie.ie_dependladdr.ie46_local.ia46_addr4.s_addr) :
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inet_ntoa6(&p->t_inpcb->inp_inc.inc_ie.ie_dependladdr.ie6_local);
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tcps_raddr = p == NULL ? 0 :
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p->t_inpcb->inp_vflag == INP_IPV4 ?
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inet_ntoa(&p->t_inpcb->inp_inc.inc_ie.ie_dependfaddr.ie46_foreign.ia46_addr4.s_addr) :
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inet_ntoa6(&p->t_inpcb->inp_inc.inc_ie.ie_dependfaddr.ie6_foreign);
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tcps_state = p == NULL ? -1 : p->t_state;
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tcps_iss = p == NULL ? 0 : p->iss;
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tcps_suna = p == NULL ? 0 : p->snd_una;
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tcps_snxt = p == NULL ? 0 : p->snd_nxt;
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tcps_rack = p == NULL ? 0 : p->last_ack_sent;
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tcps_rnxt = p == NULL ? 0 : p->rcv_nxt;
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tcps_swnd = p == NULL ? -1 : p->snd_wnd;
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tcps_snd_ws = p == NULL ? -1 : p->snd_scale;
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tcps_rwnd = p == NULL ? -1 : p->rcv_wnd;
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tcps_rcv_ws = p == NULL ? -1 : p->rcv_scale;
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tcps_cwnd = p == NULL ? -1 : p->snd_cwnd;
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tcps_cwnd_ssthresh = p == NULL ? -1 : p->snd_ssthresh;
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tcps_sack_fack = p == NULL ? 0 : p->snd_fack;
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tcps_sack_snxt = p == NULL ? 0 : p->sack_newdata;
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tcps_rto = p == NULL ? -1 : p->t_rxtcur / 1000; /* XXX */
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tcps_mss = p == NULL ? -1 : p->t_maxseg;
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tcps_retransmit = p == NULL ? -1 : p->t_rxtshift > 0 ? 1 : 0;
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};
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#pragma D binding "1.0" translator
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translator tcpinfo_t < struct tcphdr *p > {
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tcp_sport = p == NULL ? 0 : ntohs(p->th_sport);
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tcp_dport = p == NULL ? 0 : ntohs(p->th_dport);
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tcp_seq = p == NULL ? -1 : ntohl(p->th_seq);
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tcp_ack = p == NULL ? -1 : ntohl(p->th_ack);
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tcp_offset = p == NULL ? -1 : (p->th_off >> 2);
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tcp_flags = p == NULL ? 0 : p->th_flags;
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tcp_window = p == NULL ? 0 : ntohs(p->th_win);
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tcp_checksum = p == NULL ? 0 : ntohs(p->th_sum);
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tcp_urgent = p == NULL ? 0 : ntohs(p->th_urp);
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tcp_hdr = (struct tcphdr *)p;
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};
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/*
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* This translator differs from the one for tcpinfo_t in that the sequence
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* number, acknowledgement number, window size and urgent pointer are already
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* in host order and thus don't need to be converted.
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*/
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#pragma D binding "1.0" translator
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translator tcpinfoh_t < struct tcphdr *p > {
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tcp_sport = p == NULL ? 0 : ntohs(p->th_sport);
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tcp_dport = p == NULL ? 0 : ntohs(p->th_dport);
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tcp_seq = p == NULL ? -1 : p->th_seq;
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tcp_ack = p == NULL ? -1 : p->th_ack;
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tcp_offset = p == NULL ? -1 : (p->th_off >> 2);
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tcp_flags = p == NULL ? 0 : p->th_flags;
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tcp_window = p == NULL ? 0 : (p->th_win);
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tcp_checksum = p == NULL ? 0 : ntohs(p->th_sum);
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tcp_urgent = p == NULL ? 0 : p->th_urp;
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tcp_hdr = (struct tcphdr *)p;
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};
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#pragma D binding "1.0" translator
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translator tcplsinfo_t < int s > {
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tcps_state = s;
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};
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