The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netiso/tp_trace.c

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    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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