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/netipx/spx_debug.c

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    1 /*-
    2  * Copyright (c) 1984, 1985, 1986, 1987, 1993
    3  *      The Regents of the University of California.  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  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * Copyright (c) 1995, Mike Mitchell
   30  *
   31  * Redistribution and use in source and binary forms, with or without
   32  * modification, are permitted provided that the following conditions
   33  * are met:
   34  * 1. Redistributions of source code must retain the above copyright
   35  *    notice, this list of conditions and the following disclaimer.
   36  * 2. Redistributions in binary form must reproduce the above copyright
   37  *    notice, this list of conditions and the following disclaimer in the
   38  *    documentation and/or other materials provided with the distribution.
   39  * 3. All advertising materials mentioning features or use of this software
   40  *    must display the following acknowledgement:
   41  *      This product includes software developed by the University of
   42  *      California, Berkeley and its contributors.
   43  * 4. Neither the name of the University nor the names of its contributors
   44  *    may be used to endorse or promote products derived from this software
   45  *    without specific prior written permission.
   46  *
   47  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   48  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   50  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   51  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   52  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   53  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   54  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   55  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   56  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   57  * SUCH DAMAGE.
   58  *
   59  *      @(#)spx_debug.c
   60  */
   61 
   62 #include <sys/cdefs.h>
   63 __FBSDID("$FreeBSD$");
   64 
   65 #include "opt_inet.h"
   66 #include "opt_tcpdebug.h"
   67 
   68 #include <sys/param.h>
   69 #include <sys/systm.h>
   70 #include <sys/protosw.h>
   71 
   72 #define TCPSTATES               /* for logging */
   73 
   74 #include <netinet/in_systm.h>
   75 #include <netinet/tcp_fsm.h>
   76 
   77 #include <netipx/ipx.h>
   78 #include <netipx/ipx_var.h>
   79 #include <netipx/spx.h>
   80 #define SPXTIMERS
   81 #include <netipx/spx_timer.h>
   82 #define SANAMES
   83 #include <netipx/spx_debug.h>
   84 
   85 #ifdef TCPDEBUG
   86 static  int spxconsdebug = 0;
   87 static  struct spx_debug spx_debug[SPX_NDEBUG];
   88 static  int spx_debx;
   89 #endif
   90 
   91 /*
   92  * spx debug routines
   93  */
   94 void
   95 spx_trace(short act, u_char ostate, struct spxpcb *sp, struct spx *si,
   96     int req)
   97 {
   98 #ifdef INET
   99 #ifdef TCPDEBUG
  100         u_short seq, ack, len, alo;
  101         int flags;
  102         struct spx_debug *sd = &spx_debug[spx_debx++];
  103 
  104         if (spx_debx == SPX_NDEBUG)
  105                 spx_debx = 0;
  106         sd->sd_time = iptime();
  107         sd->sd_act = act;
  108         sd->sd_ostate = ostate;
  109         sd->sd_cb = (caddr_t)sp;
  110         if (sp != NULL)
  111                 sd->sd_sp = *sp;
  112         else
  113                 bzero((caddr_t)&sd->sd_sp, sizeof(*sp));
  114         if (si != NULL)
  115                 sd->sd_si = *si;
  116         else
  117                 bzero((caddr_t)&sd->sd_si, sizeof(*si));
  118         sd->sd_req = req;
  119         if (spxconsdebug == 0)
  120                 return;
  121         if (ostate >= TCP_NSTATES)
  122                 ostate = 0;
  123         if (act >= SA_DROP)
  124                 act = SA_DROP;
  125         if (sp != NULL)
  126                 printf("%p %s:", (void *)sp, tcpstates[ostate]);
  127         else
  128                 printf("???????? ");
  129         printf("%s ", spxnames[act]);
  130         switch (act) {
  131 
  132         case SA_RESPOND:
  133         case SA_INPUT:
  134         case SA_OUTPUT:
  135         case SA_DROP:
  136                 if (si == NULL)
  137                         break;
  138                 seq = si->si_seq;
  139                 ack = si->si_ack;
  140                 alo = si->si_alo;
  141                 len = si->si_len;
  142                 if (act == SA_OUTPUT) {
  143                         seq = ntohs(seq);
  144                         ack = ntohs(ack);
  145                         alo = ntohs(alo);
  146                         len = ntohs(len);
  147                 }
  148 #ifndef lint
  149 #define p1(f)  { printf("%s = %x, ", "f", f); }
  150                 p1(seq); p1(ack); p1(alo); p1(len);
  151 #endif
  152                 flags = si->si_cc;
  153                 if (flags) {
  154                         char *cp = "<";
  155 #ifndef lint
  156 #define pf(f) { if (flags & SPX_ ## f) { printf("%s%s", cp, "f"); cp = ","; } }
  157                         pf(SP); pf(SA); pf(OB); pf(EM);
  158 #else
  159                         cp = cp;
  160 #endif
  161                         printf(">");
  162                 }
  163 #ifndef lint
  164 #define p2(f)  { printf("%s = %x, ", "f", si->si_ ## f); }
  165                 p2(sid);p2(did);p2(dt);p2(pt);
  166 #endif
  167                 ipx_printhost(&si->si_sna);
  168                 ipx_printhost(&si->si_dna);
  169 
  170                 if (act == SA_RESPOND) {
  171                         printf("ipx_len = %x, ",
  172                                 ((struct ipx *)si)->ipx_len);
  173                 }
  174                 break;
  175 
  176         case SA_USER:
  177                 printf("%s", prurequests[req&0xff]);
  178                 if ((req & 0xff) == PRU_SLOWTIMO)
  179                         printf("<%s>", spxtimers[req>>8]);
  180                 break;
  181         }
  182         if (sp)
  183                 printf(" -> %s", tcpstates[sp->s_state]);
  184         /* print out internal state of sp !?! */
  185         printf("\n");
  186         if (sp == 0)
  187                 return;
  188 #ifndef lint
  189 #define p3(f)  { printf("%s = %x, ", "f", sp->s_ ## f); }
  190         printf("\t"); p3(rack);p3(ralo);p3(smax);p3(flags); printf("\n");
  191 #endif
  192 #endif
  193 #endif
  194 }

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