sys/netproto/ipx/spx_debug.c

   1 /*
   2  * Copyright (c) 1995, Mike Mitchell
   3  * Copyright (c) 1984, 1985, 1986, 1987, 1993
   4  *      The Regents of the University of California.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by the University of
  17  *      California, Berkeley and its contributors.
  18  * 4. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)spx_debug.c
  35  *
  36  * $FreeBSD: src/sys/netipx/spx_debug.c,v 1.14 1999/08/28 00:49:43 peter Exp $
  37  * $DragonFly: src/sys/netproto/ipx/spx_debug.c,v 1.5 2006/12/22 23:57:54 swildner Exp $
  38  */
  39
  40 #include "opt_inet.h"
  41 #include "opt_tcpdebug.h"
  42
  43 #include <sys/param.h>
  44 #include <sys/systm.h>
  45 #include <sys/protosw.h>
  46
  47 #include <netinet/in_systm.h>
  48 #include <netinet/tcp_fsm.h>
  49
  50 #include "ipx.h"
  51 #include "ipx_var.h"
  52 #include "spx.h"
  53 #define SPXTIMERS
  54 #include "spx_timer.h"
  55 #define SANAMES
  56 #include "spx_debug.h"
  57
  58 #ifdef TCPDEBUG
  59 static  int spxconsdebug = 0;
  60 static  struct spx_debug spx_debug[SPX_NDEBUG];
  61 static  int spx_debx;
  62 #endif
  63
  64 /*
  65  * spx debug routines
  66  */
  67 void
  68 spx_trace(int act, int ostate, struct spxpcb *sp, struct spx *si, int req)
  69 {
  70 #ifdef INET
  71 #ifdef TCPDEBUG
  72         u_short seq, ack, len, alo;
  73         int flags;
  74         struct spx_debug *sd = &spx_debug[spx_debx++];
  75
  76         if (spx_debx == SPX_NDEBUG)
  77                 spx_debx = 0;
  78         sd->sd_time = iptime();
  79         sd->sd_act = act;
  80         sd->sd_ostate = ostate;
  81         sd->sd_cb = (caddr_t)sp;
  82         if (sp != NULL)
  83                 sd->sd_sp = *sp;
  84         else
  85                 bzero((caddr_t)&sd->sd_sp, sizeof(*sp));
  86         if (si != NULL)
  87                 sd->sd_si = *si;
  88         else
  89                 bzero((caddr_t)&sd->sd_si, sizeof(*si));
  90         sd->sd_req = req;
  91         if (spxconsdebug == 0)
  92                 return;
  93         if (ostate >= TCP_NSTATES)
  94                 ostate = 0;
  95         if (act >= SA_DROP)
  96                 act = SA_DROP;
  97         if (sp != NULL)
  98                 kprintf("%p %s:", (void *)sp, tcpstates[ostate]);
  99         else
 100                 kprintf("???????? ");
 101         kprintf("%s ", spxnames[act]);
 102         switch (act) {
 103
 104         case SA_RESPOND:
 105         case SA_INPUT:
 106         case SA_OUTPUT:
 107         case SA_DROP:
 108                 if (si == NULL)
 109                         break;
 110                 seq = si->si_seq;
 111                 ack = si->si_ack;
 112                 alo = si->si_alo;
 113                 len = si->si_len;
 114                 if (act == SA_OUTPUT) {
 115                         seq = ntohs(seq);
 116                         ack = ntohs(ack);
 117                         alo = ntohs(alo);
 118                         len = ntohs(len);
 119                 }
 120 #ifndef lint
 121 #define p1(f)  { kprintf("%s = %x, ", "f", f); }
 122                 p1(seq); p1(ack); p1(alo); p1(len);
 123 #endif
 124                 flags = si->si_cc;
 125                 if (flags) {
 126                         char *cp = "<";
 127 #ifndef lint
 128 #define pf(f) { if (flags & SPX_ ## f) { kprintf("%s%s", cp, "f"); cp = ","; } }
 129                         pf(SP); pf(SA); pf(OB); pf(EM);
 130 #else
 131                         cp = cp;
 132 #endif
 133                         kprintf(">");
 134                 }
 135 #ifndef lint
 136 #define p2(f)  { kprintf("%s = %x, ", "f", si->si_ ## f); }
 137                 p2(sid);p2(did);p2(dt);p2(pt);
 138 #endif
 139                 ipx_printhost(&si->si_sna);
 140                 ipx_printhost(&si->si_dna);
 141
 142                 if (act == SA_RESPOND) {
 143                         kprintf("ipx_len = %x, ",
 144                                 ((struct ipx *)si)->ipx_len);
 145                 }
 146                 break;
 147
 148         case SA_USER:
 149                 kprintf("%s", prurequests[req&0xff]);
 150                 if ((req & 0xff) == PRU_SLOWTIMO)
 151                         kprintf("<%s>", spxtimers[req>>8]);
 152                 break;
 153         }
 154         if (sp)
 155                 kprintf(" -> %s", tcpstates[sp->s_state]);
 156         /* print out internal state of sp !?! */
 157         kprintf("\n");
 158         if (sp == 0)
 159                 return;
 160 #ifndef lint
 161 #define p3(f)  { kprintf("%s = %x, ", "f", sp->s_ ## f); }
 162         kprintf("\t"); p3(rack);p3(ralo);p3(smax);p3(flags); kprintf("\n");
 163 #endif
 164 #endif
 165 #endif
 166 }