253 lines
7.4 KiB
C
253 lines
7.4 KiB
C
/* $NetBSD: hd_debug.c,v 1.13 2003/08/07 16:33:00 agc Exp $ */
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/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Laboratory for Computation Vision and the Computer Science Department
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* of the University of British Columbia.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)hd_debug.c 8.1 (Berkeley) 6/10/93
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*/
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/*
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* Copyright (c) 1984 University of British Columbia.
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*
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* This code is derived from software contributed to Berkeley by
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* the Laboratory for Computation Vision and the Computer Science Department
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* of the University of British Columbia.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)hd_debug.c 8.1 (Berkeley) 6/10/93
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: hd_debug.c,v 1.13 2003/08/07 16:33:00 agc Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/domain.h>
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#include <sys/socket.h>
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#include <sys/protosw.h>
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#include <sys/errno.h>
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#include <sys/time.h>
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#include <sys/kernel.h>
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#include <net/if.h>
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#include <netccitt/hdlc.h>
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#include <netccitt/hd_var.h>
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#include <netccitt/x25.h>
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#ifdef HDLCDEBUG
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#define NTRACE 32
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struct hdlctrace {
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struct hdcb *ht_hdp;
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short ht_dir;
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struct mbuf *ht_frame;
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struct timeval ht_time;
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} hdtrace[NTRACE];
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int lasttracelogged, freezetrace;
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#endif
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void
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hd_trace(hdp, direction, m)
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struct hdcb *hdp;
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int direction;
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struct mbuf *m;
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{
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char *s;
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int nr, pf, ns, i;
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struct Hdlc_frame *frame = mtod(m, struct Hdlc_frame *);
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struct Hdlc_iframe *iframe = (struct Hdlc_iframe *) frame;
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#ifdef HDLCDEBUG
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hd_savetrace(hdp, direction, m);
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#endif
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if (hdp->hd_xcp->xc_ltrace) {
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if (direction == RX)
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printf("F-In: ");
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else if (direction == 2)
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printf("F-Xmt: ");
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else
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printf("F-Out: ");
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nr = iframe->nr;
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pf = iframe->pf;
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ns = iframe->ns;
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switch (hd_decode(hdp, frame)) {
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case SABM:
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printf("SABM : PF=%d\n", pf);
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break;
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case DISC:
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printf("DISC : PF=%d\n", pf);
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break;
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case DM:
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printf("DM : PF=%d\n", pf);
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break;
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case FRMR:
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{
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struct Frmr_frame *f = (struct Frmr_frame *) frame;
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printf("FRMR : PF=%d, TEXT=", pf);
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for (s = (char *) frame, i = 0; i < 5; ++i, ++s)
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printf("%x ", (int) *s & 0xff);
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printf("\n");
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printf("control=%x v(s)=%d v(r)=%d w%d x%d y%d z%d\n",
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f->frmr_control, f->frmr_ns, f->frmr_nr,
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f->frmr_w, f->frmr_x, f->frmr_y, f->frmr_z);
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break;
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}
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case UA:
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printf("UA : PF=%d\n", pf);
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break;
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case RR:
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printf("RR : N(R)=%d, PF=%d\n", nr, pf);
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break;
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case RNR:
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printf("RNR : N(R)=%d, PF=%d\n", nr, pf);
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break;
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case REJ:
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printf("REJ : N(R)=%d, PF=%d\n", nr, pf);
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break;
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case IFRAME:
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{
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int len = 0;
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for (; m; m = m->m_next)
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len += m->m_len;
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len -= HDHEADERLN;
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printf("IFRAME : N(R)=%d, PF=%d, N(S)=%d, DATA(%d)=",
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nr, pf, ns, len);
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for (s = (char *) iframe->i_field, i = 0; i < 3; ++i, ++s)
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printf("%x ", (int) *s & 0xff);
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printf("\n");
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break;
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}
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default:
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printf("ILLEGAL: ");
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for (s = (char *) frame, i = 0; i < 5; ++i, ++s)
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printf("%x ", (int) *s & 0xff);
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printf("\n");
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}
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}
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}
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#ifdef HDLCDEBUG
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static void
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hd_savetrace(hdp, dir, m)
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struct hdcb *hdp;
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int dir;
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struct mbuf *m;
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{
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struct hdlctrace *htp;
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struct Hdlc_frame *frame = mtod(m, struct Hdlc_frame *);
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if (freezetrace)
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return;
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htp = &hdtrace[lasttracelogged];
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lasttracelogged = (lasttracelogged + 1) % NTRACE;
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if (m = htp->ht_frame)
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m_freem(m);
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htp->ht_frame = m_copy(m, 0, m->m_len);
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htp->ht_hdp = hdp;
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htp->ht_dir = dir;
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htp->ht_time = time;
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}
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void
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hd_dumptrace(hdp)
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struct hdcb *hdp;
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{
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int i, ltrace;
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struct hdlctrace *htp;
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freezetrace = 1;
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hd_status(hdp);
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printf("retransmit queue:");
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for (i = 0; i < 8; i++)
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printf(" %x", hdp->hd_retxq[i]);
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printf("\n");
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ltrace = hdp->hd_xcp->xc_ltrace;
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hdp->hd_xcp->xc_ltrace = 1;
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for (i = 0; i < NTRACE; i++) {
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htp = &hdtrace[(lasttracelogged + i) % NTRACE];
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if (htp->ht_hdp != hdp || htp->ht_frame == 0)
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continue;
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printf("%d/%d ", htp->ht_time.tv_sec & 0xff,
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htp->ht_time.tv_usec / 10000);
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hd_trace(htp->ht_hdp, htp->ht_dir, htp->ht_frame);
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m_freem(htp->ht_frame);
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htp->ht_frame = 0;
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}
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hdp->hd_xcp->xc_ltrace = ltrace;
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freezetrace = 0;
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}
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#endif
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