FreeBSD/Linux Kernel Cross Reference
sys/netiso/tp_trace.c
1 /* $NetBSD: tp_trace.c,v 1.10 2004/04/19 05:16:46 matt 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 1.10 2004/04/19 05:16:46 matt 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(struct tp_pcb *tpcb, u_int event, u_int arg, u_int src, u_int len,
103 u_int arg4, u_int arg5)
104 {
105 struct tp_Trace *tp;
106
107 tp = &tp_Trace[tp_Tracen++];
108 tp_Tracen %= TPTRACEN;
109
110 tp->tpt_event = event;
111 tp->tpt_tseq = tp_seq++;
112 tp->tpt_arg = arg;
113 if (tpcb)
114 tp->tpt_arg2 = tpcb->tp_lref;
115 bcopy((caddr_t) & time, (caddr_t) & tp->tpt_time, sizeof(struct timeval));
116
117 switch (event) {
118
119 case TPPTertpdu:
120 bcopy((caddr_t) src, (caddr_t) & tp->tpt_ertpdu,
121 (unsigned) MIN((int) len, sizeof(struct tp_Trace)));
122 break;
123
124 case TPPTusrreq:
125 case TPPTmisc:
126
127 /* arg is a string */
128 bcopy((caddr_t) arg, (caddr_t) tp->tpt_str,
129 (unsigned) MIN(1 + strlen((caddr_t) arg), TPTRACE_STRLEN));
130 tp->tpt_m2 = src;
131 tp->tpt_m3 = len;
132 tp->tpt_m4 = arg4;
133 tp->tpt_m1 = arg5;
134 break;
135
136 case TPPTgotXack:
137 case TPPTXack:
138 case TPPTsendack:
139 case TPPTgotack:
140 case TPPTack:
141 case TPPTindicate:
142 default:
143 case TPPTdriver:
144 tp->tpt_m2 = arg;
145 tp->tpt_m3 = src;
146 tp->tpt_m4 = len;
147 tp->tpt_m5 = arg4;
148 tp->tpt_m1 = arg5;
149 break;
150 case TPPTparam:
151 bcopy((caddr_t) src, (caddr_t) & tp->tpt_param, sizeof(struct tp_param));
152 break;
153 case TPPTref:
154 bcopy((caddr_t) src, (caddr_t) & tp->tpt_ref, sizeof(struct tp_ref));
155 break;
156
157 case TPPTtpduin:
158 case TPPTtpduout:
159 tp->tpt_arg2 = arg4;
160 bcopy((caddr_t) src, (caddr_t) & tp->tpt_tpdu,
161 (unsigned) MIN((int) len, sizeof(struct tp_Trace)));
162 break;
163 }
164 }
165 #endif /* TPPT */
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