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/* $OpenBSD: hd_debug.c,v 1.4 2003/12/10 07:22:42 itojun Exp $ */
/* $NetBSD: hd_debug.c,v 1.6 1996/02/13 22:04:25 christos Exp $ */
/*
* Copyright (c) University of British Columbia, 1984
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Laboratory for Computation Vision and the Computer Science Department
* of the University of British Columbia.
*
* 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. 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.
*
* @(#)hd_debug.c 8.1 (Berkeley) 6/10/93
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/domain.h>
#include <sys/socket.h>
#include <sys/protosw.h>
#include <sys/errno.h>
#include <sys/time.h>
#include <sys/kernel.h>
#include <net/if.h>
#include <netccitt/hdlc.h>
#include <netccitt/hd_var.h>
#include <netccitt/x25.h>
#ifdef HDLCDEBUG
#define NTRACE 32
struct hdlctrace {
struct hdcb *ht_hdp;
short ht_dir;
struct mbuf *ht_frame;
struct timeval ht_time;
} hdtrace[NTRACE];
int lasttracelogged, freezetrace;
#endif
void
hd_trace(hdp, direction, frame)
struct hdcb *hdp;
int direction;
struct Hdlc_frame *frame;
{
char *s;
int nr, pf, ns, i;
struct Hdlc_iframe *iframe = (struct Hdlc_iframe *) frame;
#ifdef HDLCDEBUG
hd_savetrace(hdp, direction, frame);
#endif
if (hdp->hd_xcp->xc_ltrace) {
if (direction == RX)
printf("F-In: ");
else if (direction == 2)
printf("F-Xmt: ");
else
printf("F-Out: ");
nr = iframe->nr;
pf = iframe->pf;
ns = iframe->ns;
switch (hd_decode(hdp, frame)) {
case SABM:
printf("SABM : PF=%d\n", pf);
break;
case DISC:
printf("DISC : PF=%d\n", pf);
break;
case DM:
printf("DM : PF=%d\n", pf);
break;
case FRMR:
{
struct Frmr_frame *f = (struct Frmr_frame *) frame;
printf("FRMR : PF=%d, TEXT=", pf);
for (s = (char *) frame, i = 0; i < 5; ++i, ++s)
printf("%x ", (int) *s & 0xff);
printf("\n");
printf("control=%x v(s)=%d v(r)=%d w%d x%d y%d z%d\n",
f->frmr_control, f->frmr_ns, f->frmr_nr,
f->frmr_w, f->frmr_x, f->frmr_y, f->frmr_z);
break;
}
case UA:
printf("UA : PF=%d\n", pf);
break;
case RR:
printf("RR : N(R)=%d, PF=%d\n", nr, pf);
break;
case RNR:
printf("RNR : N(R)=%d, PF=%d\n", nr, pf);
break;
case REJ:
printf("REJ : N(R)=%d, PF=%d\n", nr, pf);
break;
case IFRAME:
{
struct mbuf *m;
int len = 0;
for (m = dtom(frame); m; m = m->m_next)
len += m->m_len;
len -= HDHEADERLN;
printf("IFRAME : N(R)=%d, PF=%d, N(S)=%d, DATA(%d)=",
nr, pf, ns, len);
for (s = (char *) iframe->i_field, i = 0; i < 3; ++i, ++s)
printf("%x ", (int) *s & 0xff);
printf("\n");
break;
}
default:
printf("ILLEGAL: ");
for (s = (char *) frame, i = 0; i < 5; ++i, ++s)
printf("%x ", (int) *s & 0xff);
printf("\n");
}
}
}
#ifdef HDLCDEBUG
static void
hd_savetrace(hdp, dir, frame)
struct hdcb *hdp;
int dir;
struct Hdlc_frame *frame;
{
struct hdlctrace *htp;
struct mbuf *m;
if (freezetrace)
return;
htp = &hdtrace[lasttracelogged];
lasttracelogged = (lasttracelogged + 1) % NTRACE;
if (m = htp->ht_frame)
m_freem(m);
m = dtom(frame);
htp->ht_frame = m_copy(m, 0, m->m_len);
htp->ht_hdp = hdp;
htp->ht_dir = dir;
htp->ht_time = time;
}
void
hd_dumptrace(hdp)
struct hdcb *hdp;
{
int i, ltrace;
struct hdlctrace *htp;
freezetrace = 1;
hd_status(hdp);
printf("retransmit queue:");
for (i = 0; i < 8; i++)
printf(" %x", hdp->hd_retxq[i]);
printf("\n");
ltrace = hdp->hd_xcp->xc_ltrace;
hdp->hd_xcp->xc_ltrace = 1;
for (i = 0; i < NTRACE; i++) {
htp = &hdtrace[(lasttracelogged + i) % NTRACE];
if (htp->ht_hdp != hdp || htp->ht_frame == 0)
continue;
printf("%d/%d ", htp->ht_time.tv_sec & 0xff,
htp->ht_time.tv_usec / 10000);
hd_trace(htp->ht_hdp, htp->ht_dir,
mtod(htp->ht_frame, struct Hdlc_frame *));
m_freem(htp->ht_frame);
htp->ht_frame = 0;
}
hdp->hd_xcp->xc_ltrace = ltrace;
freezetrace = 0;
}
#endif
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