workbench/network/stacks/AROSTCP/bsdsocket/netinet/tcp_debug.c

   1 /*
   2  * Copyright (c) 1982, 1986, 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  *      @(#)tcp_debug.c 8.1 (Berkeley) 6/10/93
  34  * $Id$
  35  */
  36
  37 #ifdef TCPDEBUG
  38 /* load symbolic names */
  39 #define PRUREQUESTS
  40 #define TCPSTATES
  41 #define TCPTIMERS
  42 #define TANAMES
  43 #endif
  44
  45 #include <sys/param.h>
  46 #include <sys/systm.h>
  47 #include <sys/mbuf.h>
  48 #include <sys/socket.h>
  49 #include <sys/socketvar.h>
  50 #include <sys/protosw.h>
  51 #include <sys/errno.h>
  52 #include <sys/queue.h>
  53
  54 #include <net/route.h>
  55 #include <net/if.h>
  56
  57 #include <netinet/in.h>
  58 #include <netinet/in_systm.h>
  59 #include <netinet/ip.h>
  60 #include <netinet/in_pcb.h>
  61 #include <netinet/ip_var.h>
  62 #include <netinet/tcp.h>
  63 #include <netinet/tcp_fsm.h>
  64 #include <netinet/tcp_seq.h>
  65 #include <netinet/tcp_timer.h>
  66 #include <netinet/tcp_var.h>
  67 #include <netinet/tcpip.h>
  68 #include <netinet/tcp_debug.h>
  69
  70 #ifdef TCPDEBUG
  71 int     tcpconsdebug = 0;
  72 #endif
  73 /*
  74  * Tcp debug routines
  75  */
  76 void
  77 tcp_trace(act, ostate, tp, ti, req)
  78         short act, ostate;
  79         struct tcpcb *tp;
  80         struct tcpiphdr *ti;
  81         int req;
  82 {
  83         __unused tcp_seq seq, ack;
  84         __unused int len, flags;
  85         struct tcp_debug *td = &tcp_debug[tcp_debx++];
  86
  87         if (tcp_debx == TCP_NDEBUG)
  88                 tcp_debx = 0;
  89         td->td_time = iptime();
  90         td->td_act = act;
  91         td->td_ostate = ostate;
  92         td->td_tcb = (caddr_t)tp;
  93         if (tp)
  94                 td->td_cb = *tp;
  95         else
  96                 bzero((caddr_t)&td->td_cb, sizeof (*tp));
  97         if (ti)
  98                 td->td_ti = *ti;
  99         else
 100                 bzero((caddr_t)&td->td_ti, sizeof (*ti));
 101         td->td_req = req;
 102 #ifdef TCPDEBUG
 103         if (tcpconsdebug == 0)
 104                 return;
 105         if (tp)
 106                 printf("%p %s:", tp, tcpstates[ostate]);
 107         else
 108                 printf("???????? ");
 109         printf("%s ", tanames[act]);
 110         switch (act) {
 111
 112         case TA_INPUT:
 113         case TA_OUTPUT:
 114         case TA_DROP:
 115                 if (ti == 0)
 116                         break;
 117                 seq = ti->ti_seq;
 118                 ack = ti->ti_ack;
 119                 len = ti->ti_len;
 120                 if (act == TA_OUTPUT) {
 121                         seq = ntohl(seq);
 122                         ack = ntohl(ack);
 123                         len = ntohs((u_short)len);
 124                 }
 125                 if (act == TA_OUTPUT)
 126                         len -= sizeof (struct tcphdr);
 127                 if (len)
 128                         printf("[%x..%x)", seq, seq+len);
 129                 else
 130                         printf("%x", seq);
 131                 printf("@%x, urp=%x", ack, ti->ti_urp);
 132                 flags = ti->ti_flags;
 133                 if (flags) {
 134                         char *cp = "<";
 135 #define pf(f) {                                 \
 136         if (ti->ti_flags & TH_##f) {            \
 137                 printf("%s%s", cp, #f);         \
 138                 cp = ",";                       \
 139         }                                       \
 140 }
 141                         pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
 142                         printf(">");
 143                 }
 144                 break;
 145
 146         case TA_USER:
 147                 printf("%s", prurequests[req&0xff]);
 148                 if ((req & 0xff) == PRU_SLOWTIMO)
 149                         printf("<%s>", tcptimers[req>>8]);
 150                 break;
 151         }
 152         if (tp)
 153                 printf(" -> %s", tcpstates[tp->t_state]);
 154         /* print out internal state of tp !?! */
 155         printf("\n");
 156         if (tp == 0)
 157                 return;
 158         printf("\trcv_(nxt,wnd,up) (%x,%x,%x) snd_(una,nxt,max) (%x,%x,%x)\n",
 159             tp->rcv_nxt, tp->rcv_wnd, tp->rcv_up, tp->snd_una, tp->snd_nxt,
 160             tp->snd_max);
 161         printf("\tsnd_(wl1,wl2,wnd) (%x,%x,%x)\n",
 162             tp->snd_wl1, tp->snd_wl2, tp->snd_wnd);
 163 #endif /* TCPDEBUG */
 164 }