FreeBSD/Linux Kernel Cross Reference
sys/netiso/tp_trace.c
1 /* $NetBSD: tp_trace.c,v 1.9 2003/08/07 16:33:43 agc Exp $ */
2
3 /*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)tp_trace.c 8.1 (Berkeley) 6/10/93
32 */
33
34 /***********************************************************
35 Copyright IBM Corporation 1987
36
37 All Rights Reserved
38
39 Permission to use, copy, modify, and distribute this software and its
40 documentation for any purpose and without fee is hereby granted,
41 provided that the above copyright notice appear in all copies and that
42 both that copyright notice and this permission notice appear in
43 supporting documentation, and that the name of IBM not be
44 used in advertising or publicity pertaining to distribution of the
45 software without specific, written prior permission.
46
47 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
48 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
49 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
50 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
51 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
52 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
53 SOFTWARE.
54
55 ******************************************************************/
56
57 /*
58 * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
59 */
60 /*
61 * The whole protocol trace module. We keep a circular buffer of trace
62 * structures, which are big unions of different structures we might want to
63 * see. Unfortunately this gets too big pretty easily. Pcbs were removed from
64 * the tracing when the kernel got too big to boot.
65 */
66
67 #include <sys/cdefs.h>
68 __KERNEL_RCSID(0, "$NetBSD: tp_trace.c,v 1.9 2003/08/07 16:33:43 agc Exp $");
69
70 #define TP_TRACEFILE
71
72 #include <sys/param.h>
73 #include <sys/systm.h>
74 #include <sys/mbuf.h>
75 #include <sys/socket.h>
76 #include <sys/time.h>
77
78 #include <netiso/tp_param.h>
79 #include <netiso/tp_timer.h>
80 #include <netiso/tp_stat.h>
81 #include <netiso/tp_param.h>
82 #include <netiso/tp_ip.h>
83 #include <netiso/tp_pcb.h>
84 #include <netiso/tp_tpdu.h>
85 #include <netiso/argo_debug.h>
86 #include <netiso/tp_trace.h>
87
88 #ifdef TPPT
89 static tp_seq = 0;
90 u_char tp_traceflags[128];
91
92 /*
93 * The argument tpcb is the obvious.
94 * event here is just the type of trace event - TPPTmisc, etc.
95 * The rest of the arguments have different uses depending
96 * on the type of trace event.
97 */
98 /* ARGSUSED */
99 /* VARARGS */
100
101 void
102 tpTrace(tpcb, event, arg, src, len, arg4, arg5)
103 struct tp_pcb *tpcb;
104 u_int event, arg;
105 u_int src;
106 u_int len;
107 u_int arg4;
108 u_int arg5;
109 {
110 struct tp_Trace *tp;
111
112 tp = &tp_Trace[tp_Tracen++];
113 tp_Tracen %= TPTRACEN;
114
115 tp->tpt_event = event;
116 tp->tpt_tseq = tp_seq++;
117 tp->tpt_arg = arg;
118 if (tpcb)
119 tp->tpt_arg2 = tpcb->tp_lref;
120 bcopy((caddr_t) & time, (caddr_t) & tp->tpt_time, sizeof(struct timeval));
121
122 switch (event) {
123
124 case TPPTertpdu:
125 bcopy((caddr_t) src, (caddr_t) & tp->tpt_ertpdu,
126 (unsigned) MIN((int) len, sizeof(struct tp_Trace)));
127 break;
128
129 case TPPTusrreq:
130 case TPPTmisc:
131
132 /* arg is a string */
133 bcopy((caddr_t) arg, (caddr_t) tp->tpt_str,
134 (unsigned) MIN(1 + strlen((caddr_t) arg), TPTRACE_STRLEN));
135 tp->tpt_m2 = src;
136 tp->tpt_m3 = len;
137 tp->tpt_m4 = arg4;
138 tp->tpt_m1 = arg5;
139 break;
140
141 case TPPTgotXack:
142 case TPPTXack:
143 case TPPTsendack:
144 case TPPTgotack:
145 case TPPTack:
146 case TPPTindicate:
147 default:
148 case TPPTdriver:
149 tp->tpt_m2 = arg;
150 tp->tpt_m3 = src;
151 tp->tpt_m4 = len;
152 tp->tpt_m5 = arg4;
153 tp->tpt_m1 = arg5;
154 break;
155 case TPPTparam:
156 bcopy((caddr_t) src, (caddr_t) & tp->tpt_param, sizeof(struct tp_param));
157 break;
158 case TPPTref:
159 bcopy((caddr_t) src, (caddr_t) & tp->tpt_ref, sizeof(struct tp_ref));
160 break;
161
162 case TPPTtpduin:
163 case TPPTtpduout:
164 tp->tpt_arg2 = arg4;
165 bcopy((caddr_t) src, (caddr_t) & tp->tpt_tpdu,
166 (unsigned) MIN((int) len, sizeof(struct tp_Trace)));
167 break;
168 }
169 }
170 #endif /* TPPT */
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