sys/netproto/ns/spp_debug.c

   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  * 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  *
  33  *      @(#)spp_debug.c 8.1 (Berkeley) 6/10/93
  34  * $FreeBSD: src/sys/netns/spp_debug.c,v 1.10 1999/08/28 00:49:52 peter Exp $
  35  * $DragonFly: src/sys/netproto/ns/spp_debug.c,v 1.7 2006/12/22 23:57:54 swildner Exp $
  36  */
  37
  38 #include "opt_inet.h"
  39
  40 #include <sys/param.h>
  41 #include <sys/systm.h>
  42 #include <sys/mbuf.h>
  43 #include <sys/socket.h>
  44 #include <sys/socketvar.h>
  45 #include <sys/protosw.h>
  46 #include <sys/errno.h>
  47
  48 #include <net/route.h>
  49 #include <net/if.h>
  50 #include <netinet/tcp_fsm.h>
  51
  52 #include "ns.h"
  53 #include "ns_pcb.h"
  54 #include "idp.h"
  55 #include "idp_var.h"
  56 #include "sp.h"
  57 #include "spidp.h"
  58 #define SPPTIMERS
  59 #include "spp_timer.h"
  60 #include "spp_var.h"
  61 #define SANAMES
  62 #include "spp_debug.h"
  63
  64 int     sppconsdebug = 0;
  65 struct   spp_debug spp_debug[SPP_NDEBUG];
  66 int      spp_debx;
  67
  68 /*
  69  * spp debug routines
  70  */
  71 void
  72 spp_trace(short act, u_char ostate, struct sppcb *sp, struct spidp *si, int req)
  73 {
  74 #ifdef INET
  75 #ifdef TCPDEBUG
  76         u_short seq, ack, len, alo;
  77         unsigned long iptime();
  78         int flags;
  79         struct spp_debug *sd = &spp_debug[spp_debx++];
  80         extern char *prurequests[];
  81         extern char *sanames[];
  82         extern char *tcpstates[];
  83         extern char *spptimers[];
  84
  85         if (spp_debx == SPP_NDEBUG)
  86                 spp_debx = 0;
  87         sd->sd_time = iptime();
  88         sd->sd_act = act;
  89         sd->sd_ostate = ostate;
  90         sd->sd_cb = (caddr_t)sp;
  91         if (sp)
  92                 sd->sd_sp = *sp;
  93         else
  94                 bzero((caddr_t)&sd->sd_sp, sizeof (*sp));
  95         if (si)
  96                 sd->sd_si = *si;
  97         else
  98                 bzero((caddr_t)&sd->sd_si, sizeof (*si));
  99         sd->sd_req = req;
 100         if (sppconsdebug == 0)
 101                 return;
 102         if (ostate >= TCP_NSTATES) ostate = 0;
 103         if (act >= SA_DROP) act = SA_DROP;
 104         if (sp)
 105                 kprintf("%x %s:", sp, tcpstates[ostate]);
 106         else
 107                 kprintf("???????? ");
 108         kprintf("%s ", sanames[act]);
 109         switch (act) {
 110
 111         case SA_RESPOND:
 112         case SA_INPUT:
 113         case SA_OUTPUT:
 114         case SA_DROP:
 115                 if (si == 0)
 116                         break;
 117                 seq = si->si_seq;
 118                 ack = si->si_ack;
 119                 alo = si->si_alo;
 120                 len = si->si_len;
 121                 if (act == SA_OUTPUT) {
 122                         seq = ntohs(seq);
 123                         ack = ntohs(ack);
 124                         alo = ntohs(alo);
 125                         len = ntohs(len);
 126                 }
 127 #ifndef lint
 128 #define p1(f)  { kprintf("%s = %x, ", "f", f); }
 129                 p1(seq); p1(ack); p1(alo); p1(len);
 130 #endif
 131                 flags = si->si_cc;
 132                 if (flags) {
 133                         char *cp = "<";
 134 #ifndef lint
 135 #define pf(f) { if (flags&SP_/**/f) { kprintf("%s%s", cp, "f"); cp = ","; } }
 136                         pf(SP); pf(SA); pf(OB); pf(EM);
 137 #else
 138                         cp = cp;
 139 #endif
 140                         kprintf(">");
 141                 }
 142 #ifndef lint
 143 #define p2(f)  { kprintf("%s = %x, ", "f", si->si_/**/f); }
 144                 p2(sid);p2(did);p2(dt);p2(pt);
 145 #endif
 146                 ns_printhost(&si->si_sna);
 147                 ns_printhost(&si->si_dna);
 148
 149                 if (act==SA_RESPOND) {
 150                         kprintf("idp_len = %x, ",
 151                                 ((struct idp *)si)->idp_len);
 152                 }
 153                 break;
 154
 155         case SA_USER:
 156                 kprintf("%s", prurequests[req&0xff]);
 157                 if ((req & 0xff) == PRU_SLOWTIMO)
 158                         kprintf("<%s>", spptimers[req>>8]);
 159                 break;
 160         }
 161         if (sp)
 162                 kprintf(" -> %s", tcpstates[sp->s_state]);
 163         /* print out internal state of sp !?! */
 164         kprintf("\n");
 165         if (sp == 0)
 166                 return;
 167 #ifndef lint
 168 #define p3(f)  { kprintf("%s = %x, ", "f", sp->s_/**/f); }
 169         kprintf("\t"); p3(rack);p3(ralo);p3(smax);p3(flags); kprintf("\n");
 170 #endif
 171 #endif
 172 #endif
 173 }