diff options
Diffstat (limited to 'cddl/lib/libdtrace/tcp.d')
| -rw-r--r-- | cddl/lib/libdtrace/tcp.d | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/cddl/lib/libdtrace/tcp.d b/cddl/lib/libdtrace/tcp.d new file mode 100644 index 0000000..27126658 --- /dev/null +++ b/cddl/lib/libdtrace/tcp.d @@ -0,0 +1,203 @@ +/* + * 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 + * + * $FreeBSD$ + */ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2013 Mark Johnston <markj@freebsd.org> + */ + +#pragma D depends_on library ip.d +#pragma D depends_on provider tcp + +/* + * Convert a TCP state value to a string. + */ +#pragma D binding "1.0" TCPS_CLOSED +inline int TCPS_CLOSED = 0; +#pragma D binding "1.0" TCPS_LISTEN +inline int TCPS_LISTEN = 1; +#pragma D binding "1.0" TCPS_SYN_SENT +inline int TCPS_SYN_SENT = 2; +#pragma D binding "1.0" TCPS_SYN_RECEIVED +inline int TCPS_SYN_RECEIVED = 3; +#pragma D binding "1.0" TCPS_ESTABLISHED +inline int TCPS_ESTABLISHED = 4; +#pragma D binding "1.0" TCPS_CLOSE_WAIT +inline int TCPS_CLOSE_WAIT = 5; +#pragma D binding "1.0" TCPS_FIN_WAIT_1 +inline int TCPS_FIN_WAIT_1 = 6; +#pragma D binding "1.0" TCPS_CLOSING +inline int TCPS_CLOSING = 7; +#pragma D binding "1.0" TCPS_LAST_ACK +inline int TCPS_LAST_ACK = 8; +#pragma D binding "1.0" TCPS_FIN_WAIT_2 +inline int TCPS_FIN_WAIT_2 = 9; +#pragma D binding "1.0" TCPS_TIME_WAIT +inline int TCPS_TIME_WAIT = 10; + +/* TCP segment flags. */ +#pragma D binding "1.0" TH_FIN +inline uint8_t TH_FIN = 0x01; +#pragma D binding "1.0" TH_SYN +inline uint8_t TH_SYN = 0x02; +#pragma D binding "1.0" TH_RST +inline uint8_t TH_RST = 0x04; +#pragma D binding "1.0" TH_PUSH +inline uint8_t TH_PUSH = 0x08; +#pragma D binding "1.0" TH_ACK +inline uint8_t TH_ACK = 0x10; +#pragma D binding "1.0" TH_URG +inline uint8_t TH_URG = 0x20; +#pragma D binding "1.0" TH_ECE +inline uint8_t TH_ECE = 0x40; +#pragma D binding "1.0" TH_CWR +inline uint8_t TH_CWR = 0x80; + +/* TCP connection state strings. */ +#pragma D binding "1.0" tcp_state_string +inline string tcp_state_string[int32_t state] = + state == TCPS_CLOSED ? "state-closed" : + state == TCPS_LISTEN ? "state-listen" : + state == TCPS_SYN_SENT ? "state-syn-sent" : + state == TCPS_SYN_RECEIVED ? "state-syn-received" : + state == TCPS_ESTABLISHED ? "state-established" : + state == TCPS_CLOSE_WAIT ? "state-close-wait" : + state == TCPS_FIN_WAIT_1 ? "state-fin-wait-1" : + state == TCPS_CLOSING ? "state-closing" : + state == TCPS_LAST_ACK ? "state-last-ack" : + state == TCPS_FIN_WAIT_2 ? "state-fin-wait-2" : + state == TCPS_TIME_WAIT ? "state-time-wait" : + "<unknown>"; + +/* + * tcpsinfo contains stable TCP details from tcp_t. + */ +typedef struct tcpsinfo { + uintptr_t tcps_addr; + int tcps_local; /* is delivered locally, boolean */ + int tcps_active; /* active open (from here), boolean */ + uint16_t tcps_lport; /* local port */ + uint16_t tcps_rport; /* remote port */ + string tcps_laddr; /* local address, as a string */ + string tcps_raddr; /* remote address, as a string */ + int32_t tcps_state; /* TCP state */ + uint32_t tcps_iss; /* Initial sequence # sent */ + uint32_t tcps_suna; /* sequence # sent but unacked */ + uint32_t tcps_snxt; /* next sequence # to send */ + uint32_t tcps_rack; /* sequence # we have acked */ + uint32_t tcps_rnxt; /* next sequence # expected */ + uint32_t tcps_swnd; /* send window size */ + int32_t tcps_snd_ws; /* send window scaling */ + uint32_t tcps_rwnd; /* receive window size */ + int32_t tcps_rcv_ws; /* receive window scaling */ + uint32_t tcps_cwnd; /* congestion window */ + uint32_t tcps_cwnd_ssthresh; /* threshold for congestion avoidance */ + uint32_t tcps_sack_fack; /* SACK sequence # we have acked */ + uint32_t tcps_sack_snxt; /* next SACK seq # for retransmission */ + uint32_t tcps_rto; /* round-trip timeout, msec */ + uint32_t tcps_mss; /* max segment size */ + int tcps_retransmit; /* retransmit send event, boolean */ +} tcpsinfo_t; + +/* + * tcplsinfo provides the old tcp state for state changes. + */ +typedef struct tcplsinfo { + int32_t tcps_state; /* previous TCP state */ +} tcplsinfo_t; + +/* + * tcpinfo is the TCP header fields. + */ +typedef struct tcpinfo { + uint16_t tcp_sport; /* source port */ + uint16_t tcp_dport; /* destination port */ + uint32_t tcp_seq; /* sequence number */ + uint32_t tcp_ack; /* acknowledgment number */ + uint8_t tcp_offset; /* data offset, in bytes */ + uint8_t tcp_flags; /* flags */ + uint16_t tcp_window; /* window size */ + uint16_t tcp_checksum; /* checksum */ + uint16_t tcp_urgent; /* urgent data pointer */ + struct tcphdr *tcp_hdr; /* raw TCP header */ +} tcpinfo_t; + +#pragma D binding "1.0" translator +translator csinfo_t < struct tcpcb *p > { + cs_addr = NULL; + cs_cid = (uint64_t)p; + cs_pid = 0; + cs_zoneid = 0; +}; + +#pragma D binding "1.0" translator +translator tcpsinfo_t < struct tcpcb *p > { + tcps_addr = (uintptr_t)p; + tcps_local = -1; /* XXX */ + tcps_active = -1; /* XXX */ + tcps_lport = p == NULL ? 0 : ntohs(p->t_inpcb->inp_inc.inc_ie.ie_lport); + tcps_rport = p == NULL ? 0 : ntohs(p->t_inpcb->inp_inc.inc_ie.ie_fport); + tcps_laddr = p == NULL ? 0 : + p->t_inpcb->inp_vflag == INP_IPV4 ? + inet_ntoa(&p->t_inpcb->inp_inc.inc_ie.ie_dependladdr.ie46_local.ia46_addr4.s_addr) : + inet_ntoa6(&p->t_inpcb->inp_inc.inc_ie.ie_dependladdr.ie6_local); + tcps_raddr = p == NULL ? 0 : + p->t_inpcb->inp_vflag == INP_IPV4 ? + inet_ntoa(&p->t_inpcb->inp_inc.inc_ie.ie_dependfaddr.ie46_foreign.ia46_addr4.s_addr) : + inet_ntoa6(&p->t_inpcb->inp_inc.inc_ie.ie_dependfaddr.ie6_foreign); + tcps_state = p == NULL ? -1 : p->t_state; + tcps_iss = p == NULL ? 0 : p->iss; + tcps_suna = p == NULL ? 0 : p->snd_una; + tcps_snxt = p == NULL ? 0 : p->snd_nxt; + tcps_rack = p == NULL ? 0 : p->last_ack_sent; + tcps_rnxt = p == NULL ? 0 : p->rcv_nxt; + tcps_swnd = p == NULL ? -1 : p->snd_wnd; + tcps_snd_ws = p == NULL ? -1 : p->snd_scale; + tcps_rwnd = p == NULL ? -1 : p->rcv_wnd; + tcps_rcv_ws = p == NULL ? -1 : p->rcv_scale; + tcps_cwnd = p == NULL ? -1 : p->snd_cwnd; + tcps_cwnd_ssthresh = p == NULL ? -1 : p->snd_ssthresh; + tcps_sack_fack = p == NULL ? 0 : p->snd_fack; + tcps_sack_snxt = p == NULL ? 0 : p->sack_newdata; + tcps_rto = p == NULL ? -1 : p->t_rxtcur / 1000; /* XXX */ + tcps_mss = p == NULL ? -1 : p->t_maxseg; + tcps_retransmit = -1; /* XXX */ +}; + +#pragma D binding "1.0" translator +translator tcpinfo_t < struct tcphdr *p > { + tcp_sport = p == NULL ? 0 : ntohs(p->th_sport); + tcp_dport = p == NULL ? 0 : ntohs(p->th_dport); + tcp_seq = p == NULL ? -1 : ntohl(p->th_seq); + tcp_ack = p == NULL ? -1 : ntohl(p->th_ack); + tcp_offset = p == NULL ? -1 : (p->th_off >> 2); + tcp_flags = p == NULL ? 0 : p->th_flags; + tcp_window = p == NULL ? 0 : ntohs(p->th_win); + tcp_checksum = p == NULL ? 0 : ntohs(p->th_sum); + tcp_urgent = p == NULL ? 0 : ntohs(p->th_urp); + tcp_hdr = (struct tcphdr *)p; +}; + +#pragma D binding "1.0" translator +translator tcplsinfo_t < int s > { + tcps_state = s; +}; |
