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tcp_debug.c
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1993-12-22
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RCS_ID_C="$Id: tcp_debug.c,v 1.10 1993/12/21 22:17:22 jraja Exp $";
/*
* Copyright (c) 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>,
* Helsinki University of Technology, Finland.
* All rights reserved.
*
* HISTORY
* $Log: tcp_debug.c,v $
* Revision 1.10 1993/12/21 22:17:22 jraja
* Added one 'const' to avoid warnings...
*
* Revision 1.9 1993/06/04 11:16:15 jraja
* Fixes for first public release.
*
* Revision 1.8 1993/05/17 00:16:44 ppessi
* Changed RCS version. Added rcsid.
*
* Revision 1.7 1993/04/05 19:06:24 jraja
* Changed storage of the spl functions return values to type spl_t.
* Added include for conf.h to every .c file.
*
* Revision 1.6 93/03/22 16:59:34 16:59:34 jraja (Jarno Tapio Rajahalme)
* Changed bcopy()s and bzero()s with word aligned pointers to
* aligned_b(copy|zero) ar aligned_b(copy|zero)_const. The latter is for calls
* in which the size is constant.
* These can be disabled by defining NOALIGN.
* Converted bcopys doing structure copies (on aligned pointers) to structure
* assignments, since at least SASC produces better code with assignment.
*
* Revision 1.5 93/03/13 17:14:23 17:14:23 ppessi (Pekka Pessi)
* Fixed bugs with variable initialization.
*
* Revision 1.4 93/03/03 21:29:59 21:29:59 jraja (Jarno Tapio Rajahalme)
* Moved various data definitions from header files to here.
*
* Revision 1.3 93/03/02 19:02:22 19:02:22 too (Tomi Ollila)
* Changed %? to %l? on format strings
*
* Revision 1.2 93/02/26 09:29:59 09:29:59 jraja (Jarno Tapio Rajahalme)
* Made this compile with ANSI C (added prototypes).
* Made one structure copy to explicitly use bcopy to be able to use inline
* bcopy().
* Changed old style string concat / ** / to ansi ##.
*
* Revision 1.1 92/11/17 16:30:11 16:30:11 jraja (Jarno Tapio Rajahalme)
* Initial revision
*
*/
/*
* Copyright (c) 1982, 1986 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.
*
* @(#)tcp_debug.c 7.6 (Berkeley) 6/28/90
*/
#ifdef TCPDEBUG
/* load symbolic names */
#define PRUREQUESTS
#define TCPSTATES
#define TCPTIMERS
#define TANAMES
#endif
#include <conf.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <sys/errno.h>
#include <net/route.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/in_pcb.h>
#include <netinet/ip_var.h>
#include <netinet/tcp.h>
#include <netinet/tcp_fsm.h>
#include <netinet/tcp_seq.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/tcpip.h>
#include <netinet/tcp_debug.h>
#include <netinet/tcp_debug_protos.h>
/* --- start moved from tcp_debug.h --- */
struct tcp_debug tcp_debug[TCP_NDEBUG] = {0};
int tcp_debx = 0;
#ifdef TCPDEBUG
char *tanames[] =
{ "input", "output", "user", "respond", "drop" };
/* --- end moved from tcp_debug.h --- */
/* --- start moved from sys/protosw.h --- */
char *prurequests[] = {
"ATTACH", "DETACH", "BIND", "LISTEN",
"CONNECT", "ACCEPT", "DISCONNECT", "SHUTDOWN",
"RCVD", "SEND", "ABORT", "CONTROL",
"SENSE", "RCVOOB", "SENDOOB", "SOCKADDR",
"PEERADDR", "CONNECT2", "FASTTIMO", "SLOWTIMO",
"PROTORCV", "PROTOSEND"
};
/* --- end moved from sys/protosw.h --- */
/* --- start moved from netinet/tcp_timers.h --- */
char *tcptimers[] =
{ "REXMT", "PERSIST", "KEEP", "2MSL" };
/* --- end moved from netinet/tcp_timers.h --- */
/* --- start moved from tcp_fsm.h --- */
char *tcpstates[] = {
"CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD",
"ESTABLISHED", "CLOSE_WAIT", "FIN_WAIT_1", "CLOSING",
"LAST_ACK", "FIN_WAIT_2", "TIME_WAIT",
};
/* --- end moved from tcp_fsm.h --- */
int tcpconsdebug = 0;
#endif
/*
* Tcp debug routines
*/
void
tcp_trace(act, ostate, tp, ti, req)
short act, ostate;
struct tcpcb *tp;
struct tcpiphdr *ti;
int req;
{
tcp_seq seq, ack;
int len, flags;
struct tcp_debug *td = &tcp_debug[tcp_debx++];
if (tcp_debx == TCP_NDEBUG)
tcp_debx = 0;
td->td_time = iptime();
td->td_act = act;
td->td_ostate = ostate;
td->td_tcb = (caddr_t)tp;
if (tp)
td->td_cb = *tp;
else
aligned_bzero_const((caddr_t)&td->td_cb, sizeof (*tp));
if (ti)
td->td_ti = *ti;
else
aligned_bzero_const((caddr_t)&td->td_ti, sizeof (*ti));
td->td_req = req;
#ifdef TCPDEBUG
if (tcpconsdebug == 0)
return;
if (tp)
printf("%lx %s:", (u_long)tp, tcpstates[ostate]);
else
printf("???????? ");
printf("%s ", tanames[act]);
switch (act) {
case TA_INPUT:
case TA_OUTPUT:
case TA_DROP:
if (ti == 0)
break;
seq = ti->ti_seq;
ack = ti->ti_ack;
len = ti->ti_len;
if (act == TA_OUTPUT) {
seq = ntohl(seq);
ack = ntohl(ack);
len = ntohs((u_short)len);
}
if (act == TA_OUTPUT)
len -= sizeof (struct tcphdr);
if (len)
printf("[%lx..%lx)", seq, seq+len);
else
printf("%lx", seq);
printf("@%lx, urp=%lx", ack, ti->ti_urp);
flags = ti->ti_flags;
if (flags) {
#ifndef lint
const char *cp = "<";
#define pf(f) { if (ti->ti_flags&TH_##f) { printf("%s%s", cp, "f"); cp = ","; } }
pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
#endif
printf(">");
}
break;
case TA_USER:
printf("%s", prurequests[req&0xff]);
if ((req & 0xff) == PRU_SLOWTIMO)
printf("<%s>", tcptimers[req>>8]);
break;
}
if (tp)
printf(" -> %s", tcpstates[tp->t_state]);
/* print out internal state of tp !?! */
printf("\n");
if (tp == 0)
return;
printf("\trcv_(nxt,wnd,up) (%lx,%lx,%lx) snd_(una,nxt,max) (%lx,%lx,%lx)\n",
tp->rcv_nxt, tp->rcv_wnd, tp->rcv_up, tp->snd_una, tp->snd_nxt,
tp->snd_max);
printf("\tsnd_(wl1,wl2,wnd) (%lx,%lx,%lx)\n",
tp->snd_wl1, tp->snd_wl2, tp->snd_wnd);
#endif /* TCPDEBUG */
}