The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/netinet/tcp_debug.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    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  * $FreeBSD$
   35  */
   36 
   37 #include "opt_inet.h"
   38 #include "opt_tcpdebug.h"
   39 
   40 #ifndef INET
   41 #error The option TCPDEBUG requires option INET.
   42 #endif
   43 
   44 #ifdef TCPDEBUG
   45 /* load symbolic names */
   46 #define PRUREQUESTS
   47 #define TCPSTATES
   48 #define TCPTIMERS
   49 #define TANAMES
   50 #endif
   51 
   52 #include <sys/param.h>
   53 #include <sys/systm.h>
   54 #include <sys/protosw.h>
   55 
   56 #include <netinet/in.h>
   57 #include <netinet/in_systm.h>
   58 #include <netinet/ip_var.h>
   59 #include <netinet/tcp.h>
   60 #include <netinet/tcp_fsm.h>
   61 #include <netinet/tcp_timer.h>
   62 #include <netinet/tcp_var.h>
   63 #include <netinet/tcpip.h>
   64 #include <netinet/tcp_debug.h>
   65 
   66 #ifdef TCPDEBUG
   67 static int      tcpconsdebug = 0;
   68 #endif
   69 
   70 static struct tcp_debug tcp_debug[TCP_NDEBUG];
   71 static int      tcp_debx;
   72 
   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         tcp_seq seq, ack;
   84         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(
  159         "\trcv_(nxt,wnd,up) (%lx,%lx,%lx) snd_(una,nxt,max) (%lx,%lx,%lx)\n",
  160             (u_long)tp->rcv_nxt, tp->rcv_wnd, (u_long)tp->rcv_up,
  161             (u_long)tp->snd_una, (u_long)tp->snd_nxt, (u_long)tp->snd_max);
  162         printf("\tsnd_(wl1,wl2,wnd) (%lx,%lx,%lx)\n",
  163             (u_long)tp->snd_wl1, (u_long)tp->snd_wl2, tp->snd_wnd);
  164 #endif /* TCPDEBUG */
  165 }

Cache object: 5e52a805a6ac606adbee5fdab189cd64


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.