[unix-history] / sys / netccitt / hd_debug.c

/*
 * Copyright (c) University of British Columbia, 1984
 * Copyright (c) 1990 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. 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.
 *
 *	@(#)hd_debug.c	7.5 (Berkeley) 5/29/91
 */

#include "param.h"
#include "systm.h"
#include "mbuf.h"
#include "domain.h"
#include "socket.h"
#include "protosw.h"
#include "errno.h"
#include "time.h"
#include "kernel.h"

#include "../net/if.h"

#include "hdlc.h"
#include "hd_var.h"
#include "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

hd_trace (hdp, direction, frame)
struct hdcb *hdp;
register struct Hdlc_frame *frame;
{
	register char *s;
	register 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: 
			{
			register 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: 
			{
			register struct mbuf *m;
			register 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
hd_savetrace (hdp, dir, frame)
struct hdcb *hdp;
struct Hdlc_frame *frame;
{
	register struct hdlctrace *htp;
	register 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;
}

hd_dumptrace (hdp)
struct hdcb *hdp;
{
	register int i, ltrace;
	register 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
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) University of British Columbia, 1984
	3	* Copyright (c) 1990 The Regents of the University of California.
	4	* All rights reserved.
	5	*
	6	* This code is derived from software contributed to Berkeley by
	7	* the Laboratory for Computation Vision and the Computer Science Department
	8	* of the University of British Columbia.
	9	*
	10	* Redistribution and use in source and binary forms, with or without
	11	* modification, are permitted provided that the following conditions
	12	* are met:
	13	* 1. Redistributions of source code must retain the above copyright
	14	* notice, this list of conditions and the following disclaimer.
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in the
	17	* documentation and/or other materials provided with the distribution.
	18	* 3. All advertising materials mentioning features or use of this software
	19	* must display the following acknowledgement:
	20	* This product includes software developed by the University of
	21	* California, Berkeley and its contributors.
	22	* 4. Neither the name of the University nor the names of its contributors
	23	* may be used to endorse or promote products derived from this software
	24	* without specific prior written permission.
	25	*
	26	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	27	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	28	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	29	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	30	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	31	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	32	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	33	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	34	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	35	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	36	* SUCH DAMAGE.
	37	*
	38	* @(#)hd_debug.c 7.5 (Berkeley) 5/29/91
	39	*/
	40
	41	#include "param.h"
	42	#include "systm.h"
	43	#include "mbuf.h"
	44	#include "domain.h"
	45	#include "socket.h"
	46	#include "protosw.h"
	47	#include "errno.h"
	48	#include "time.h"
	49	#include "kernel.h"
	50
	51	#include "../net/if.h"
	52
	53	#include "hdlc.h"
	54	#include "hd_var.h"
	55	#include "x25.h"
	56
	57	#ifdef HDLCDEBUG
	58	#define NTRACE 32
	59
	60	struct hdlctrace {
	61	struct hdcb *ht_hdp;
	62	short ht_dir;
	63	struct mbuf *ht_frame;
	64	struct timeval ht_time;
65	} hdtrace[NTRACE];
66
67	int lasttracelogged, freezetrace;
68	#endif
69
70	hd_trace (hdp, direction, frame)
71	struct hdcb *hdp;
72	register struct Hdlc_frame *frame;
73	{
74	register char *s;
75	register int nr, pf, ns, i;
76	struct Hdlc_iframe iframe = (struct Hdlc_iframe ) frame;
77
78	#ifdef HDLCDEBUG
79	hd_savetrace (hdp, direction, frame);
80	#endif
81	if (hdp -> hd_xcp -> xc_ltrace) {
82	if (direction == RX)
83	printf ("F-In: ");
84	else if (direction == 2)
85	printf ("F-Xmt: ");
86	else
87	printf ("F-Out: ");
88
89	nr = iframe -> nr;
90	pf = iframe -> pf;
91	ns = iframe -> ns;
92
93	switch (hd_decode (hdp, frame)) {
94	case SABM:
95	printf ("SABM : PF=%d\n", pf);
96	break;
97
98	case DISC:
99	printf ("DISC : PF=%d\n", pf);
100	break;
101
102	case DM:
103	printf ("DM : PF=%d\n", pf);
104	break;
105
106	case FRMR:
107	{
108	register struct Frmr_frame f = (struct Frmr_frame )frame;
109
110	printf ("FRMR : PF=%d, TEXT=", pf);
111	for (s = (char *) frame, i = 0; i < 5; ++i, ++s)
112	printf ("%x ", (int) * s & 0xff);
113	printf ("\n");
114	printf ("control=%x v(s)=%d v(r)=%d w%d x%d y%d z%d\n",
115	f->frmr_control, f->frmr_ns, f->frmr_nr,
116	f->frmr_w, f->frmr_x, f->frmr_y, f->frmr_z);
117	break;
118	}
119
120	case UA:
121	printf ("UA : PF=%d\n", pf);
122	break;
123
124	case RR:
125	printf ("RR : N(R)=%d, PF=%d\n", nr, pf);
126	break;
127
128	case RNR:
129	printf ("RNR : N(R)=%d, PF=%d\n", nr, pf);
130	break;
131
132	case REJ:
133	printf ("REJ : N(R)=%d, PF=%d\n", nr, pf);
134	break;
135
136	case IFRAME:
137	{
138	register struct mbuf *m;
139	register int len = 0;
140
141	for(m = dtom (frame); m; m = m -> m_next)
142	len += m -> m_len;
143	len -= HDHEADERLN;
144	printf ("IFRAME : N(R)=%d, PF=%d, N(S)=%d, DATA(%d)=",
145	nr, pf, ns, len);
146	for (s = (char *)iframe->i_field, i = 0; i < 3; ++i, ++s)
147	printf ("%x ", (int) *s & 0xff);
148	printf ("\n");
149	break;
150	}
151
152	default:
153	printf ("ILLEGAL: ");
154	for (s = (char *) frame, i = 0; i < 5; ++i, ++s)
155	printf ("%x ", (int) *s & 0xff);
156	printf ("\n");
157	}
158
159	}
160	}
161
162	#ifdef HDLCDEBUG
163	static
164	hd_savetrace (hdp, dir, frame)
165	struct hdcb *hdp;
166	struct Hdlc_frame *frame;
167	{
168	register struct hdlctrace *htp;
169	register struct mbuf *m;
170
171	if (freezetrace)
172	return;
173	htp = &hdtrace[lasttracelogged];
174	lasttracelogged = (lasttracelogged + 1) % NTRACE;
175	if (m = htp->ht_frame)
176	m_freem (m);
177	m = dtom (frame);
178	htp->ht_frame = m_copy (m, 0, m->m_len);
179	htp->ht_hdp = hdp;
180	htp->ht_dir = dir;
181	htp->ht_time = time;
182	}
183
184	hd_dumptrace (hdp)
185	struct hdcb *hdp;
186	{
187	register int i, ltrace;
188	register struct hdlctrace *htp;
189
190	freezetrace = 1;
191	hd_status (hdp);
192	printf ("retransmit queue:");
193	for (i = 0; i < 8; i++)
194	printf (" %x", hdp -> hd_retxq[i]);
195	printf ("\n");
196	ltrace = hdp -> hd_xcp -> xc_ltrace;
197	hdp -> hd_xcp -> xc_ltrace = 1;
198	for (i = 0; i < NTRACE; i++) {
199	htp = &hdtrace[(lasttracelogged + i) % NTRACE];
200	if (htp->ht_hdp != hdp \|\| htp->ht_frame == 0)
201	continue;
202	printf ("%d/%d ", htp->ht_time.tv_sec & 0xff,
203	htp->ht_time.tv_usec / 10000);
204	hd_trace (htp->ht_hdp, htp->ht_dir,
205	mtod (htp->ht_frame, struct Hdlc_frame *));
206	m_freem (htp->ht_frame);
207	htp->ht_frame = 0;
208	}
209	hdp -> hd_xcp -> xc_ltrace = ltrace;
210	freezetrace = 0;
211	}
212	#endif