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/netns/spp_debug.c

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    1 /*      $NetBSD: spp_debug.c,v 1.15 2004/04/21 02:30:56 matt Exp $      */
    2 
    3 /*
    4  * Copyright (c) 1984, 1985, 1986, 1987, 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  *      @(#)spp_debug.c 8.1 (Berkeley) 6/10/93
   32  */
   33 
   34 #include <sys/cdefs.h>
   35 __KERNEL_RCSID(0, "$NetBSD: spp_debug.c,v 1.15 2004/04/21 02:30:56 matt Exp $");
   36 
   37 #include "opt_inet.h"
   38 
   39 #include <sys/param.h>
   40 #include <sys/systm.h>
   41 #include <sys/mbuf.h>
   42 #include <sys/socket.h>
   43 #include <sys/socketvar.h>
   44 #include <sys/protosw.h>
   45 #include <sys/errno.h>
   46 
   47 #include <net/route.h>
   48 #include <net/if.h>
   49 #include <netinet/tcp_fsm.h>
   50 
   51 #include <netns/ns.h>
   52 #include <netns/ns_pcb.h>
   53 #include <netns/idp.h>
   54 #include <netns/idp_var.h>
   55 #include <netns/sp.h>
   56 #include <netns/spidp.h>
   57 #define SPPTIMERS
   58 #include <netns/spp_timer.h>
   59 #include <netns/spp_var.h>
   60 #define SANAMES
   61 #include <netns/spp_debug.h>
   62 
   63 extern const char * const sanames[];
   64 extern const char * const sppnames[];
   65 
   66 int     sppconsdebug = 0;
   67 
   68 struct  spp_debug spp_debug[SPP_NDEBUG];
   69 int     spp_debx;
   70 
   71 /*
   72  * spp debug routines
   73  */
   74 void
   75 spp_trace(int act, u_int ostate, struct sppcb *sp, struct spidp *si, int req)
   76 {
   77 #ifdef INET
   78 #ifdef SPPDEBUG
   79         u_short seq, ack, len, alo;
   80         unsigned long iptime();
   81         int flags;
   82         struct spp_debug *sd = &spp_debug[spp_debx++];
   83 
   84         if (spp_debx == SPP_NDEBUG)
   85                 spp_debx = 0;
   86         sd->sd_time = iptime();
   87         sd->sd_act = (short) act;
   88         sd->sd_ostate = ostate;
   89         sd->sd_cb = (caddr_t)sp;
   90         if (sp)
   91                 sd->sd_sp = *sp;
   92         else
   93                 bzero((caddr_t)&sd->sd_sp, sizeof (*sp));
   94         if (si)
   95                 sd->sd_si = *si;
   96         else
   97                 bzero((caddr_t)&sd->sd_si, sizeof (*si));
   98         sd->sd_req = req;
   99         if (sppconsdebug == 0)
  100                 return;
  101         if (ostate >= TCP_NSTATES) ostate = 0;
  102         if (act >= SA_DROP) act = SA_DROP;
  103         if (sp)
  104                 printf("%x %s:", sp, tcpstates[ostate]);
  105         else
  106                 printf("???????? ");
  107         printf("%s ", sanames[act]);
  108         switch (act) {
  109 
  110         case SA_RESPOND:
  111         case SA_INPUT:
  112         case SA_OUTPUT:
  113         case SA_DROP:
  114                 if (si == 0)
  115                         break;
  116                 seq = si->si_seq;
  117                 ack = si->si_ack;
  118                 alo = si->si_alo;
  119                 len = si->si_len;
  120                 if (act == SA_OUTPUT) {
  121                         seq = ntohs(seq);
  122                         ack = ntohs(ack);
  123                         alo = ntohs(alo);
  124                         len = ntohs(len);
  125                 }
  126 #ifndef lint
  127 #define p1(f)  { printf("%s = %x, ", "f", f); }
  128                 p1(seq); p1(ack); p1(alo); p1(len);
  129 #endif
  130                 flags = si->si_cc;
  131                 if (flags) {
  132                         char *cp = "<";
  133 #ifndef lint
  134 #define pf(f) { if (flags&SP_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
  135                         pf(SP); pf(SA); pf(OB); pf(EM);
  136 #else
  137                         cp = cp;
  138 #endif
  139                         printf(">");
  140                 }
  141 #ifndef lint
  142 #define p2(f)  { printf("%s = %x, ", "f", si->si_/**/f); }
  143                 p2(sid);p2(did);p2(dt);p2(pt);
  144 #endif
  145                 ns_printhost(&si->si_sna);
  146                 ns_printhost(&si->si_dna);
  147 
  148                 if (act==SA_RESPOND) {
  149                         printf("idp_len = %x, ",
  150                                 ((struct idp *)si)->idp_len);
  151                 }
  152                 break;
  153 
  154         case SA_USER:
  155                 printf("%s", prurequests[req&0xff]);
  156                 if ((req & 0xff) == PRU_SLOWTIMO)
  157                         printf("<%s>", spptimers[req>>8]);
  158                 break;
  159         }
  160         if (sp)
  161                 printf(" -> %s", tcpstates[sp->s_state]);
  162         /* print out internal state of sp !?! */
  163         printf("\n");
  164         if (sp == 0)
  165                 return;
  166 #ifndef lint
  167 #define p3(f)  { printf("%s = %x, ", "f", sp->s_/**/f); }
  168         printf("\t"); p3(rack);p3(ralo);p3(smax);p3(flags); printf("\n");
  169 #endif
  170 #endif
  171 #endif
  172 }

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