Annotation of Net2/netiso/tp_trace.c, revision 1.1.1.3

1.1       root        1: /*-
                      2:  * Copyright (c) 1991 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. All advertising materials mentioning features or use of this software
                     14:  *    must display the following acknowledgement:
                     15:  *     This product includes software developed by the University of
                     16:  *     California, Berkeley and its contributors.
                     17:  * 4. Neither the name of the University nor the names of its contributors
                     18:  *    may be used to endorse or promote products derived from this software
                     19:  *    without specific prior written permission.
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     31:  * SUCH DAMAGE.
                     32:  *
1.1.1.3 ! root       33:  *     from: @(#)tp_trace.c    7.4 (Berkeley) 5/6/91
        !            34:  *     tp_trace.c,v 1.2 1993/05/20 05:28:05 cgd Exp
1.1       root       35:  */
                     36: 
                     37: /***********************************************************
                     38:                Copyright IBM Corporation 1987
                     39: 
                     40:                       All Rights Reserved
                     41: 
                     42: Permission to use, copy, modify, and distribute this software and its 
                     43: documentation for any purpose and without fee is hereby granted, 
                     44: provided that the above copyright notice appear in all copies and that
                     45: both that copyright notice and this permission notice appear in 
                     46: supporting documentation, and that the name of IBM not be
                     47: used in advertising or publicity pertaining to distribution of the
                     48: software without specific, written prior permission.  
                     49: 
                     50: IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
                     51: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
                     52: IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
                     53: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
                     54: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
                     55: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
                     56: SOFTWARE.
                     57: 
                     58: ******************************************************************/
                     59: 
                     60: /*
                     61:  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
                     62:  */
                     63: /* 
                     64:  * ARGO TP
                     65:  *
                     66:  * The whole protocol trace module.
                     67:  * We keep a circular buffer of trace structures, which are big
                     68:  * unions of different structures we might want to see.
                     69:  * Unfortunately this gets too big pretty easily. Pcbs were removed
                     70:  * from the tracing when the kernel got too big to boot.
                     71:  */
                     72: 
                     73: #define TP_TRACEFILE
                     74: 
                     75: #include "param.h"
                     76: #include "systm.h"
                     77: #include "mbuf.h"
                     78: #include "socket.h"
                     79: #include "types.h"
                     80: #include "time.h"
                     81: 
                     82: #include "tp_param.h"
                     83: #include "tp_timer.h"
                     84: #include "tp_stat.h"
                     85: #include "tp_param.h"
                     86: #include "tp_ip.h"
                     87: #include "tp_pcb.h"
                     88: #include "tp_tpdu.h"
                     89: #include "argo_debug.h"
                     90: #include "tp_trace.h"
                     91: 
                     92: #ifdef TPPT
                     93: static tp_seq = 0;
                     94: u_char tp_traceflags[128];
                     95: 
                     96: /*
                     97:  * The argument tpcb is the obvious.
                     98:  * event here is just the type of trace event - TPPTmisc, etc.
                     99:  * The rest of the arguments have different uses depending
                    100:  * on the type of trace event.
                    101:  */
                    102: /*ARGSUSED*/
                    103: /*VARARGS*/
                    104: 
                    105: void
                    106: tpTrace(tpcb, event, arg, src, len, arg4, arg5)
                    107:        struct tp_pcb   *tpcb;
                    108:        u_int                   event, arg;
                    109:        u_int                   src;
                    110:        u_int                   len; 
                    111:        u_int                   arg4;
                    112:        u_int                   arg5;
                    113: {
                    114:        register struct tp_Trace *tp;
                    115: 
                    116:        tp = &tp_Trace[tp_Tracen++];
                    117:        tp_Tracen %= TPTRACEN;
                    118: 
                    119:        tp->tpt_event = event;
                    120:        tp->tpt_tseq = tp_seq++;
                    121:        tp->tpt_arg = arg;
                    122:        if(tpcb)
                    123:                tp->tpt_arg2 = tpcb->tp_lref;
                    124:        bcopy( (caddr_t)&time, (caddr_t)&tp->tpt_time, sizeof(struct timeval) );
                    125: 
                    126:        switch(event) {
                    127: 
                    128:        case TPPTertpdu:
                    129:                bcopy((caddr_t)src, (caddr_t)&tp->tpt_ertpdu,
                    130:                        (unsigned)MIN((int)len, sizeof(struct tp_Trace)));
                    131:                break;
                    132: 
                    133:        case TPPTusrreq:
                    134:        case TPPTmisc:
                    135: 
                    136:                /* arg is a string */
                    137:                bcopy((caddr_t)arg, (caddr_t)tp->tpt_str, 
                    138:                        (unsigned)MIN(1+strlen((caddr_t) arg), TPTRACE_STRLEN));
                    139:                tp->tpt_m2 = src; 
                    140:                tp->tpt_m3 = len;
                    141:                tp->tpt_m4 = arg4;
                    142:                tp->tpt_m1 = arg5;
                    143:                break;
                    144: 
                    145:        case TPPTgotXack: 
                    146:        case TPPTXack: 
                    147:        case TPPTsendack: 
                    148:        case TPPTgotack: 
                    149:        case TPPTack: 
                    150:        case TPPTindicate: 
                    151:        default:
                    152:        case TPPTdriver: 
                    153:                tp->tpt_m2 = arg; 
                    154:                tp->tpt_m3 = src;
                    155:                tp->tpt_m4 = len;
                    156:                tp->tpt_m5 = arg4;
                    157:                tp->tpt_m1 = arg5; 
                    158:                break;
                    159:        case TPPTparam:
                    160:                bcopy((caddr_t)src, (caddr_t)&tp->tpt_param, sizeof(struct tp_param));
                    161:                break;
                    162:        case TPPTref:
                    163:                bcopy((caddr_t)src, (caddr_t)&tp->tpt_ref, sizeof(struct tp_ref));
                    164:                break;
                    165: 
                    166:        case TPPTtpduin:
                    167:        case TPPTtpduout:
                    168:                tp->tpt_arg2 = arg4;
                    169:                bcopy((caddr_t)src, (caddr_t)&tp->tpt_tpdu,
                    170:                      (unsigned)MIN((int)len, sizeof(struct tp_Trace)));
                    171:                break;
                    172:        }
                    173: }
                    174: #endif TPPT

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