Commit | Line | Data |
---|---|---|
920dae64 AT |
1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: tcp-trace.fth | |
4 | \ | |
5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
6 | \ | |
7 | \ - Do no alter or remove copyright notices | |
8 | \ | |
9 | \ - Redistribution and use of this software in source and binary forms, with | |
10 | \ or without modification, are permitted provided that the following | |
11 | \ conditions are met: | |
12 | \ | |
13 | \ - Redistribution of source code must retain the above copyright notice, | |
14 | \ this list of conditions and the following disclaimer. | |
15 | \ | |
16 | \ - Redistribution in binary form must reproduce the above copyright notice, | |
17 | \ this list of conditions and the following disclaimer in the | |
18 | \ documentation and/or other materials provided with the distribution. | |
19 | \ | |
20 | \ Neither the name of Sun Microsystems, Inc. or the names of contributors | |
21 | \ may be used to endorse or promote products derived from this software | |
22 | \ without specific prior written permission. | |
23 | \ | |
24 | \ This software is provided "AS IS," without a warranty of any kind. | |
25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
28 | \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
29 | \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
30 | \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
31 | \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
32 | \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
33 | \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
34 | \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
35 | \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
36 | \ | |
37 | \ You acknowledge that this software is not designed, licensed or | |
38 | \ intended for use in the design, construction, operation or maintenance of | |
39 | \ any nuclear facility. | |
40 | \ | |
41 | \ ========== Copyright Header End ============================================ | |
42 | id: @(#)tcp-trace.fth 1.1 04/09/07 | |
43 | purpose: TCP trace support | |
44 | copyright: Copyright 2004 Sun Microsystems, Inc. All Rights Reserved | |
45 | copyright: Use is subject to license terms. | |
46 | ||
47 | \ When debugging support is enabled, tcp-trace adds an entry to a | |
48 | \ trace buffer recording the event type, the state of the TCP control | |
49 | \ block, and the TCP/IP packet header for input/output events. This | |
50 | \ provides complete TCP state information (recorded without impacting | |
51 | \ the actual transfer) which can be analysed post-mortem. The | |
52 | \ trace buffer is implemented as circular buffer. | |
53 | ||
54 | headerless | |
55 | ||
56 | \ TCP trace events | |
57 | 0 constant TR_OUTPUT \ Before call to ip-output to send segment | |
58 | 1 constant TR_INPUT \ Before incoming segment is processed | |
59 | 2 constant TR_SOCKET \ Before processing TCP PRREQ | |
60 | ||
61 | [ifndef] DEBUG | |
62 | ||
63 | : tcp-trace ( tcb pkt event req -- ) 2drop 2drop ; | |
64 | ||
65 | [else] | |
66 | ||
67 | struct | |
68 | /l field >td-event \ TCP event (TR_*) | |
69 | /tcp-control-block field >td-tcb \ TCP control block | |
70 | /tcpip-header field >td-pkthdr \ TCP and IP headers | |
71 | /l field >td-req \ PRREQ value for TD_SOCKET | |
72 | constant /tcptrace-record | |
73 | ||
74 | d# 100 constant TCP_NTRACE \ Max number of records | |
75 | 0 value tcptrace-buffer \ Buffer | |
76 | 0 value tcptrace-nrecords \ Total records logged | |
77 | ||
78 | : index>tcptrace-entry ( index -- adr ) | |
79 | /tcptrace-record * tcptrace-buffer + | |
80 | ; | |
81 | ||
82 | : tcptrace-init ( -- ) | |
83 | tcptrace-buffer 0= if | |
84 | /tcptrace-record TCP_NTRACE * alloc-mem to tcptrace-buffer | |
85 | then | |
86 | 0 to tcptrace-nrecords | |
87 | ; | |
88 | ||
89 | : tcp-trace ( tcb pkt event req -- ) | |
90 | tcptrace-nrecords TCP_NTRACE mod ( tcb pkt event req n ) | |
91 | index>tcptrace-entry >r ( tcb pkt event req ) ( r: adr ) | |
92 | r@ /tcptrace-record erase ( tcb pkt event req ) | |
93 | r@ >td-req l! ( tcb pkt event ) | |
94 | r@ >td-event l! ( tcb pkt ) | |
95 | ?dup if ( tcb pkt ) | |
96 | r@ >td-pkthdr /tcpip-header move ( tcb ) | |
97 | then ( tcb ) | |
98 | ?dup if ( tcb ) | |
99 | r@ >td-tcb /tcp-control-block move ( ) | |
100 | then ( ) | |
101 | tcptrace-nrecords 1+ to tcptrace-nrecords ( ) | |
102 | r> drop ( ) ( r: ) | |
103 | ; | |
104 | ||
105 | : show-tcptrace-data ( xt -- ) | |
106 | tcptrace-nrecords TCP_NTRACE > if | |
107 | TCP_NTRACE tcptrace-nrecords over mod do | |
108 | i index>tcptrace-entry over execute | |
109 | loop | |
110 | then | |
111 | tcptrace-nrecords TCP_NTRACE mod 0 do | |
112 | i index>tcptrace-entry over execute | |
113 | loop drop | |
114 | ; | |
115 | ||
116 | [then] | |
117 | ||
118 | headers |