FreeBSD/Linux Kernel Cross Reference
sys/netipx/spx_debug.c

     /*
      * Copyright (c) 1995, Mike Mitchell
      * Copyright (c) 1984, 1985, 1986, 1987, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)spx_debug.c
     *
     * $FreeBSD: releng/5.1/sys/netipx/spx_debug.c 50477 1999-08-28 01:08:13Z peter $
     */
    
    #include "opt_inet.h"
    #include "opt_tcpdebug.h"
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/protosw.h>
    
    #include <netinet/in_systm.h>
    #include <netinet/tcp_fsm.h>
    
    #include <netipx/ipx.h>
    #include <netipx/ipx_var.h>
    #include <netipx/spx.h>
    #define SPXTIMERS
    #include <netipx/spx_timer.h>
    #define SANAMES
    #include <netipx/spx_debug.h>
    
    #ifdef TCPDEBUG
    static  int spxconsdebug = 0;
    static  struct spx_debug spx_debug[SPX_NDEBUG];
    static  int spx_debx;
    #endif
    
    /*
     * spx debug routines
     */
    void
    spx_trace(act, ostate, sp, si, req)
            short act;
            u_char ostate;
            struct spxpcb *sp;
            struct spx *si;
            int req;
    {
    #ifdef INET
    #ifdef TCPDEBUG
            u_short seq, ack, len, alo;
            int flags;
            struct spx_debug *sd = &spx_debug[spx_debx++];
    
            if (spx_debx == SPX_NDEBUG)
                    spx_debx = 0;
            sd->sd_time = iptime();
            sd->sd_act = act;
            sd->sd_ostate = ostate;
            sd->sd_cb = (caddr_t)sp;
            if (sp != NULL)
                    sd->sd_sp = *sp;
            else
                    bzero((caddr_t)&sd->sd_sp, sizeof(*sp));
            if (si != NULL)
                    sd->sd_si = *si;
            else
                    bzero((caddr_t)&sd->sd_si, sizeof(*si));
            sd->sd_req = req;
            if (spxconsdebug == 0)
                    return;
            if (ostate >= TCP_NSTATES)
                    ostate = 0;
            if (act >= SA_DROP)
                   act = SA_DROP;
           if (sp != NULL)
                   printf("%p %s:", (void *)sp, tcpstates[ostate]);
           else
                   printf("???????? ");
           printf("%s ", spxnames[act]);
           switch (act) {
   
           case SA_RESPOND:
           case SA_INPUT:
           case SA_OUTPUT:
           case SA_DROP:
                   if (si == NULL)
                           break;
                   seq = si->si_seq;
                   ack = si->si_ack;
                   alo = si->si_alo;
                   len = si->si_len;
                   if (act == SA_OUTPUT) {
                           seq = ntohs(seq);
                           ack = ntohs(ack);
                           alo = ntohs(alo);
                           len = ntohs(len);
                   }
   #ifndef lint
   #define p1(f)  { printf("%s = %x, ", "f", f); }
                   p1(seq); p1(ack); p1(alo); p1(len);
   #endif
                   flags = si->si_cc;
                   if (flags) {
                           char *cp = "<";
   #ifndef lint
   #define pf(f) { if (flags & SPX_ ## f) { printf("%s%s", cp, "f"); cp = ","; } }
                           pf(SP); pf(SA); pf(OB); pf(EM);
   #else
                           cp = cp;
   #endif
                           printf(">");
                   }
   #ifndef lint
   #define p2(f)  { printf("%s = %x, ", "f", si->si_ ## f); }
                   p2(sid);p2(did);p2(dt);p2(pt);
   #endif
                   ipx_printhost(&si->si_sna);
                   ipx_printhost(&si->si_dna);
   
                   if (act == SA_RESPOND) {
                           printf("ipx_len = %x, ",
                                   ((struct ipx *)si)->ipx_len);
                   }
                   break;
   
           case SA_USER:
                   printf("%s", prurequests[req&0xff]);
                   if ((req & 0xff) == PRU_SLOWTIMO)
                           printf("<%s>", spxtimers[req>>8]);
                   break;
           }
           if (sp)
                   printf(" -> %s", tcpstates[sp->s_state]);
           /* print out internal state of sp !?! */
           printf("\n");
           if (sp == 0)
                   return;
   #ifndef lint
   #define p3(f)  { printf("%s = %x, ", "f", sp->s_ ## f); }
           printf("\t"); p3(rack);p3(ralo);p3(smax);p3(flags); printf("\n");
   #endif
   #endif
   #endif
   }

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