254 lines
8.4 KiB
D
254 lines
8.4 KiB
D
/*
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* Copyright (c) 2006-2008 Apple Computer, Inc. All Rights Reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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#pragma D depends_on library darwin.d
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#pragma D depends_on module mach_kernel
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#pragma D depends_on provider tcp
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/*
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* TCP flags
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*/
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inline int TH_FIN = 0x01;
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#pragma D binding "1.0" TH_FIN
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inline int TH_SYN = 0x02;
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#pragma D binding "1.0" TH_SYN
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inline int TH_RST = 0x04;
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#pragma D binding "1.0" TH_RST
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inline int TH_PUSH = 0x08;
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#pragma D binding "1.0" TH_PUSH
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inline int TH_ACK = 0x10;
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#pragma D binding "1.0" TH_ACK
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inline int TH_URG = 0x20;
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#pragma D binding "1.0" TH_URG
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inline int TH_ECE = 0x40;
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#pragma D binding "1.0" TH_ECE
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inline int TH_CWR = 0x80;
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#pragma D binding "1.0" TH_CWR
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/*
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* TCP states
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*/
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inline int TCPS_CLOSED = 0;
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#pragma D binding "1.0" TCPS_CLOSED
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inline int TCPS_LISTEN = 1;
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#pragma D binding "1.0" TCPS_LISTEN
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inline int TCPS_SYN_SENT = 2;
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#pragma D binding "1.0" TCPS_SYN_SENT
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inline int TCPS_SYN_RECEIVED = 3;
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#pragma D binding "1.0" TCPS_SYN_RECEIVED
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inline int TCPS_ESTABLISHED = 4;
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#pragma D binding "1.0" TCPS_ESTABLISHED
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inline int TCPS_CLOSE_WAIT = 5;
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#pragma D binding "1.0" TCPS_CLOSE_WAIT
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inline int TCPS_FIN_WAIT_1 = 6;
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#pragma D binding "1.0" TCPS_FIN_WAIT_1
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inline int TCPS_CLOSING = 7;
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#pragma D binding "1.0" TCPS_CLOSING
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inline int TCPS_LAST_ACK = 8;
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#pragma D binding "1.0" TCPS_LAST_ACK
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inline int TCPS_FIN_WAIT_2 = 9;
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#pragma D binding "1.0" TCPS_FIN_WAIT_2
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inline int TCPS_TIME_WAIT = 10;
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#pragma D binding "1.0" TCPS_TIME_WAIT
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/*
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* TCP congestion control events
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*/
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inline int TCP_CC_CWND_INIT = 0;
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#pragma D binding "1.0" TCP_CC_CWND_INIT
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inline int TCP_CC_INSEQ_ACK_RCVD = 1;
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#pragma D binding "1.0" TCP_CC_INSEQ_ACK_RCVD
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inline int TCP_CC_ACK_RCVD = 2;
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#pragma D binding "1.0" TCP_CC_ACK_RCVD
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inline int TCP_CC_ENTER_FASTRECOVERY = 3;
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#pragma D binding "1.0" TCP_CC_ENTER_FASTRECOVERY
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inline int TCP_CC_IN_FASTRECOVERY = 4;
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#pragma D binding "1.0" TCP_CC_IN_FASTRECOVERY
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inline int TCP_CC_EXIT_FASTRECOVERY = 5;
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#pragma D binding "1.0" TCP_CC_EXIT_FASTRECOVERY
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inline int TCP_CC_PARTIAL_ACK = 6;
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#pragma D binding "1.0" TCP_CC_PARTIAL_ACK
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inline int TCP_CC_IDLE_TIMEOUT = 7;
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#pragma D binding "1.0" TCP_CC_IDLE_TIMEOUT
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inline int TCP_CC_REXMT_TIMEOUT = 8;
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#pragma D binding "1.0" TCP_CC_REXMT_TIMEOUT
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inline int TCP_CC_ECN_RCVD = 9;
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#pragma D binding "1.0" TCP_CC_ECN_RCVD
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inline int TCP_CC_BAD_REXMT_RECOVERY = 10;
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#pragma D binding "1.0" TCP_CC_BAD_REXMT_RECOVERY
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inline int TCP_CC_OUTPUT_ERROR = 11;
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#pragma D binding "1.0" TCP_CC_OUTPUT_ERROR
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inline int TCP_CC_CHANGE_ALGO = 12;
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#pragma D binding "1.0" TCP_CC_CHANGE_ALGO
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inline int TCP_CC_FLOW_CONTROL = 13;
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#pragma D binding "1.0" TCP_CC_FLOW_CONTROL
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inline int TCP_CC_SUSPEND = 14;
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#pragma D binding "1.0" TCP_CC_SUSPEND
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inline int TCP_CC_LIMITED_TRANSMIT = 15;
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#pragma D binding "1.0" TCP_CC_LIMITED_TRANSMIT
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inline int TCP_CC_EARLY_RETRANSMIT = 16;
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#pragma D binding "1.0" TCP_CC_EARLY_RETRANSMIT
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/*
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* tcpinfo is the TCP header field
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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; /* acknowledgement 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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#pragma D binding "1.0" translator
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translator tcpinfo_t < struct tcphdr *T > {
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tcp_sport = ntohs(T->th_sport);
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tcp_dport = ntohs(T->th_dport);
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tcp_seq = ntohl(T->th_seq);
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tcp_ack = ntohl(T->th_ack);
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tcp_offset = T->th_off << 2;
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tcp_flags = T->th_flags;
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tcp_window = ntohs(T->th_win);
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tcp_checksum = ntohs(T->th_sum);
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tcp_urgent = ntohs(T->th_urp);
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tcp_hdr = T;
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};
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/*
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* tcpsinfo contains stable TCP details from TCP control block
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*/
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typedef struct tcpsinfo {
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int tcps_local; /* is delivered locally, boolean */
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int tcps_active; /* active open, boolean */
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string tcps_state; /* TCP state, as a string */
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u_int t_flags; /* flags */
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uint32_t rcv_nxt; /* receive next */
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uint32_t rcv_adv; /* advertised window */
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uint32_t rcv_wnd; /* receive window */
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uint32_t snd_wnd; /* send window */
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uint32_t snd_cwnd; /* congestion controlled window */
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uint32_t snd_ssthresh; /* slow-start threshold */
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uint32_t snd_una; /* send unacknowledged */
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uint32_t snd_nxt; /* send next */
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uint32_t snd_max; /* send max */
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uint32_t snd_recover; /* send recover for NewReno */
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int t_rxtcur; /* retransmit timeout in ms */
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u_int t_maxseg; /* maximum segment size */
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u_int t_rttbest; /* best rtt we have seen */
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int rcv_numsacks; /* number of sack blocks present */
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int snd_numholes; /* number of holes seen by sender */
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struct tcpcb* tcpcb; /* Pointer to tcp control block */
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} tcpsinfo_t;
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#pragma D binding "1.0" translator
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translator tcpsinfo_t < struct tcpcb *T> {
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tcps_local = 0; /* Not used */
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tcps_active = 0;
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tcps_state = T ?
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T->t_state == TCPS_CLOSED ? "state-closed" :
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T->t_state == TCPS_LISTEN ? "state-listen" :
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T->t_state == TCPS_SYN_SENT ? "state-syn-sent" :
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T->t_state == TCPS_SYN_RECEIVED ? "state-syn-received" :
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T->t_state == TCPS_ESTABLISHED ? "state-established" :
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T->t_state == TCPS_CLOSE_WAIT ? "state-close-wait" :
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T->t_state == TCPS_FIN_WAIT_1 ? "state-fin-wait1" :
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T->t_state == TCPS_CLOSING ? "state-closing" :
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T->t_state == TCPS_LAST_ACK ? "state-last-ack" :
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T->t_state == TCPS_FIN_WAIT_2 ? "state-fin-wait2" :
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T->t_state == TCPS_TIME_WAIT ? "state-time-wait" :
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"<unknown>" : "<null>";
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t_flags = T->t_flags;
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rcv_nxt = T->rcv_nxt;
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rcv_adv = T->rcv_adv;
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rcv_wnd = T->rcv_wnd;
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snd_wnd = T->snd_wnd;
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snd_cwnd = T->snd_cwnd;
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snd_ssthresh = T->snd_ssthresh;
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snd_una = T->snd_una;
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snd_nxt = T->snd_nxt;
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snd_max = T->snd_max;
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snd_recover = T->snd_recover;
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t_rxtcur = T->t_rxtcur;
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t_maxseg = T->t_maxseg;
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t_rttbest = T->t_rttbest;
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rcv_numsacks = T->rcv_numsacks;
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snd_numholes = T->snd_numholes;
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tcpcb = T;
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};
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/*
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* tcpnsinfo provides the new tcp state for state changes.
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*/
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typedef struct tcpnsinfo {
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string tcps_state; /* TCP state, as a string */
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} tcpnsinfo_t;
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#pragma D binding "1.0" translator
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translator tcpnsinfo_t < int32_t I > {
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tcps_state = I ?
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I == TCPS_LISTEN ? "state-listen" :
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I == TCPS_SYN_SENT ? "state-syn-sent" :
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I == TCPS_SYN_RECEIVED ? "state-syn-received" :
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I == TCPS_ESTABLISHED ? "state-established" :
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I == TCPS_CLOSE_WAIT ? "state-close-wait" :
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I == TCPS_FIN_WAIT_1 ? "state-fin-wait1" :
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I == TCPS_CLOSING ? "state-closing" :
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I == TCPS_LAST_ACK ? "state-last-ack" :
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I == TCPS_FIN_WAIT_2 ? "state-fin-wait2" :
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I == TCPS_TIME_WAIT ? "state-time-wait" :
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"<unknown>" : "state-closed";
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};
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/*
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* tcpccevent provides the congestion control event for TCP cc probes
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*/
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typedef struct tcpccevent {
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string tcp_cc; /* TCP congestion control event, as a string */
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} tcpccevent_t;
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#pragma D binding "1.0" translator
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translator tcpccevent_t < int32_t I > {
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tcp_cc = I ?
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I == TCP_CC_INSEQ_ACK_RCVD ? "inseq-ack-rcvd" :
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I == TCP_CC_ACK_RCVD ? "ack-rcvd" :
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I == TCP_CC_ENTER_FASTRECOVERY ? "enter-fastrecovery" :
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I == TCP_CC_EXIT_FASTRECOVERY ? "exit-fastrecovery" :
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I == TCP_CC_PARTIAL_ACK ? "partial-ack" :
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I == TCP_CC_IDLE_TIMEOUT ? "idle-timeout" :
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I == TCP_CC_REXMT_TIMEOUT ? "rexmt-timeout" :
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I == TCP_CC_ECN_RCVD ? "ecn-rcvd" :
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I == TCP_CC_BAD_REXMT_RECOVERY ? "bad-rexmt" :
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I == TCP_CC_OUTPUT_ERROR ? "output-error" :
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I == TCP_CC_CHANGE_ALGO ? "change-algo" :
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I == TCP_CC_FLOW_CONTROL ? "flow-control" :
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I == TCP_CC_SUSPEND ? "suspend" :
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I == TCP_CC_LIMITED_TRANSMIT ? "limited-transmit" :
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I == TCP_CC_EARLY_RETRANSMIT ? "early-rexmt" :
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"<unknown>" : "cwnd-init";
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};
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