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\ ========== Copyright Header Begin ==========================================
\
\ Hypervisor Software File: tcp-debug.fth
\
\ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
\
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\
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\ or without modification, are permitted provided that the following
\ conditions are met:
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\ this list of conditions and the following disclaimer.
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\ - Redistribution in binary form must reproduce the above copyright notice,
\ this list of conditions and the following disclaimer in the
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\
\ Neither the name of Sun Microsystems, Inc. or the names of contributors
\ may be used to endorse or promote products derived from this software
\ without specific prior written permission.
\
\ This software is provided "AS IS," without a warranty of any kind.
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\ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
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\ ========== Copyright Header End ============================================
id: @(#)tcp-debug.fth 1.1 04/09/07
purpose: TCP debug support
copyright: Copyright 2004 Sun Microsystems, Inc. All Rights Reserved
copyright: Use is subject to license terms.
\ Post-mortem debugging support routines.
[ifdef] DEBUG
headerless
create tcp-state-names
" CLOSED" pstring,
" LISTEN" pstring,
" SYN_SENT" pstring,
" SYN_RCVD" pstring,
" ESTABLISHED" pstring,
" CLOSE_WAIT" pstring,
" FIN_WAIT_1" pstring,
" CLOSING" pstring,
" LAST_ACK" pstring,
" FIN_WAIT_2" pstring,
" TIME_WAIT" pstring,
create soreq-names
" ATTACH" pstring,
" DETACH" pstring,
" BIND" pstring,
" CONNECT" pstring,
" LISTEN" pstring,
" ACCEPT" pstring,
" SEND" pstring,
" SENDTO" pstring,
" RECV" pstring,
" RECVFROM" pstring,
: find-string ( table index -- $ ) 0 ?do count ca+ loop count ;
: tcp-state-name ( record -- $ )
tcp-state-names swap >td-tcb tcb-state@ find-string
;
: tcp-event-name ( record -- $ )
dup >td-event l@ case
TR_INPUT of drop " Input" endof
TR_SOCKET of
soreq-names swap >td-req l@ find-string
endof
TR_OUTPUT of
>td-tcb tcp-retransmitting? if " Rexmit" else " Output" then
endof
endcase
;
: ftype ( adr len field-width -- )
over - >r type r> dup 0> if spaces else drop then
;
\ Display information from TCP/IP header as
\ [FLAGS] SEG.SEQ:SEG.END(SEG.LEN) SEG.ACK SEG.WND
: show-packet-info ( pkt -- )
dup ip-len@ 0= if drop exit then ( pkt )
dup tcp-flags@ ( pkt flags )
." [" ( pkt flags )
dup TH_ACK invert and if ( pkt flags )
dup TH_SYN and if ." S" then ( pkt flags )
dup TH_FIN and if ." F" then ( pkt flags )
dup TH_PSH and if ." P" then ( pkt flags )
TH_RST and if ." R" then ( pkt )
else ( pkt flags )
drop ." ." ( pkt )
then ( pkt )
." ] " ( pkt )
base @ >r decimal ( pkt ) ( r: base )
dup seg-seq@ over seg-len@ ( pkt seg.seq seg.len )
over (u.) type ." :" ( pkt seg.seq seg.len )
tuck + (u.) type ." (" ( pkt seg.len )
(u.) type ." )" space ( pkt )
dup is-tcpack? if ( pkt )
." ack " dup seg-ack@ u. ( pkt )
then ( pkt )
." win " seg-wnd@ u. ( )
r> base ! ( ) ( r: )
;
\ Show a one line summary of the TCP event formatted as
\ <tcp-state> <soreq-name> (for TR_SOCKET events)
\ <tcp-state> <event> <pkt-info> (for TR_INPUT/TR_OUTPUT events)
: show-tcptrace-event ( record -- )
dup tcp-state-name d# 12 ftype
dup tcp-event-name d# 7 ftype
dup >td-event l@ TR_SOCKET <> if
dup >td-pkthdr show-packet-info
then drop cr
;
\ Dump out information from TCB.
: show-tcb-vars ( tcb -- )
dup tcb>inpcb 0= if exit then
base @ >r decimal
2 spaces
." rcv.nxt = " dup rcv-nxt@ .
." rcv.wnd = " dup rcv-wnd@ . cr
2 spaces
." snd.una = " dup snd-una@ .
." snd.nxt = " dup snd-nxt@ .
." snd.max = " dup snd-max@ . cr
2 spaces
." snd.wl1 = " dup snd-wl1@ .
." snd.wl2 = " dup snd-wl2@ .
." snd.wnd = " dup snd-wnd@ . cr
2 spaces
." snd.cwnd = " dup snd-cwnd@ .
." ssthresh = " dup ssthresh@ . cr
2 spaces
." rttseq = " dup >tcb-rttseq l@ .
." rtt = " dup >tcb-rtt l@ .
." srtt = " dup >tcb-srtt l@ 3 rshift .
." rttvar = " dup >tcb-rttvar l@ 2 rshift .
." rto = " >tcb-rto l@ . cr
r> base !
;
: show-tcptrace-record ( record -- )
dup show-tcptrace-event >td-tcb show-tcb-vars cr
;
headers
\ Show all available information.
: show-log ( -- )
['] show-tcptrace-record show-tcptrace-data
;
\ Show TCP event summary (1 line per event).
: show-tcp-events ( -- )
['] show-tcptrace-event show-tcptrace-data
;
headerless
[then]