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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 | * | |
1cdffd64 | 38 | * from: @(#)hd_debug.c 7.5 (Berkeley) 5/29/91 |
4c45483e | 39 | * $Id: hd_debug.c,v 1.2 1993/10/16 19:46:34 rgrimes Exp $ |
15637ed4 RG |
40 | */ |
41 | ||
42 | #include "param.h" | |
43 | #include "systm.h" | |
44 | #include "mbuf.h" | |
45 | #include "domain.h" | |
46 | #include "socket.h" | |
47 | #include "protosw.h" | |
48 | #include "errno.h" | |
49 | #include "time.h" | |
50 | #include "kernel.h" | |
51 | ||
52 | #include "../net/if.h" | |
53 | ||
54 | #include "hdlc.h" | |
55 | #include "hd_var.h" | |
56 | #include "x25.h" | |
57 | ||
58 | #ifdef HDLCDEBUG | |
59 | #define NTRACE 32 | |
60 | ||
61 | struct hdlctrace { | |
62 | struct hdcb *ht_hdp; | |
63 | short ht_dir; | |
64 | struct mbuf *ht_frame; | |
65 | struct timeval ht_time; | |
66 | } hdtrace[NTRACE]; | |
67 | ||
68 | int lasttracelogged, freezetrace; | |
69 | #endif | |
70 | ||
4c45483e | 71 | void |
15637ed4 | 72 | hd_trace (hdp, direction, frame) |
4c45483e GW |
73 | struct hdcb *hdp; |
74 | int direction; | |
75 | register struct Hdlc_frame *frame; | |
15637ed4 RG |
76 | { |
77 | register char *s; | |
78 | register int nr, pf, ns, i; | |
79 | struct Hdlc_iframe *iframe = (struct Hdlc_iframe *) frame; | |
80 | ||
81 | #ifdef HDLCDEBUG | |
82 | hd_savetrace (hdp, direction, frame); | |
83 | #endif | |
84 | if (hdp -> hd_xcp -> xc_ltrace) { | |
85 | if (direction == RX) | |
86 | printf ("F-In: "); | |
87 | else if (direction == 2) | |
88 | printf ("F-Xmt: "); | |
89 | else | |
90 | printf ("F-Out: "); | |
91 | ||
92 | nr = iframe -> nr; | |
93 | pf = iframe -> pf; | |
94 | ns = iframe -> ns; | |
95 | ||
96 | switch (hd_decode (hdp, frame)) { | |
97 | case SABM: | |
98 | printf ("SABM : PF=%d\n", pf); | |
99 | break; | |
100 | ||
101 | case DISC: | |
102 | printf ("DISC : PF=%d\n", pf); | |
103 | break; | |
104 | ||
105 | case DM: | |
106 | printf ("DM : PF=%d\n", pf); | |
107 | break; | |
108 | ||
109 | case FRMR: | |
110 | { | |
111 | register struct Frmr_frame *f = (struct Frmr_frame *)frame; | |
112 | ||
113 | printf ("FRMR : PF=%d, TEXT=", pf); | |
114 | for (s = (char *) frame, i = 0; i < 5; ++i, ++s) | |
115 | printf ("%x ", (int) * s & 0xff); | |
116 | printf ("\n"); | |
117 | printf ("control=%x v(s)=%d v(r)=%d w%d x%d y%d z%d\n", | |
118 | f->frmr_control, f->frmr_ns, f->frmr_nr, | |
119 | f->frmr_w, f->frmr_x, f->frmr_y, f->frmr_z); | |
120 | break; | |
121 | } | |
122 | ||
123 | case UA: | |
124 | printf ("UA : PF=%d\n", pf); | |
125 | break; | |
126 | ||
127 | case RR: | |
128 | printf ("RR : N(R)=%d, PF=%d\n", nr, pf); | |
129 | break; | |
130 | ||
131 | case RNR: | |
132 | printf ("RNR : N(R)=%d, PF=%d\n", nr, pf); | |
133 | break; | |
134 | ||
135 | case REJ: | |
136 | printf ("REJ : N(R)=%d, PF=%d\n", nr, pf); | |
137 | break; | |
138 | ||
139 | case IFRAME: | |
140 | { | |
141 | register struct mbuf *m; | |
142 | register int len = 0; | |
143 | ||
144 | for(m = dtom (frame); m; m = m -> m_next) | |
145 | len += m -> m_len; | |
146 | len -= HDHEADERLN; | |
147 | printf ("IFRAME : N(R)=%d, PF=%d, N(S)=%d, DATA(%d)=", | |
148 | nr, pf, ns, len); | |
149 | for (s = (char *)iframe->i_field, i = 0; i < 3; ++i, ++s) | |
150 | printf ("%x ", (int) *s & 0xff); | |
151 | printf ("\n"); | |
152 | break; | |
153 | } | |
154 | ||
155 | default: | |
156 | printf ("ILLEGAL: "); | |
157 | for (s = (char *) frame, i = 0; i < 5; ++i, ++s) | |
158 | printf ("%x ", (int) *s & 0xff); | |
159 | printf ("\n"); | |
160 | } | |
161 | ||
162 | } | |
163 | } | |
164 | ||
165 | #ifdef HDLCDEBUG | |
166 | static | |
167 | hd_savetrace (hdp, dir, frame) | |
168 | struct hdcb *hdp; | |
169 | struct Hdlc_frame *frame; | |
170 | { | |
171 | register struct hdlctrace *htp; | |
172 | register struct mbuf *m; | |
173 | ||
174 | if (freezetrace) | |
175 | return; | |
176 | htp = &hdtrace[lasttracelogged]; | |
177 | lasttracelogged = (lasttracelogged + 1) % NTRACE; | |
178 | if (m = htp->ht_frame) | |
179 | m_freem (m); | |
180 | m = dtom (frame); | |
181 | htp->ht_frame = m_copy (m, 0, m->m_len); | |
182 | htp->ht_hdp = hdp; | |
183 | htp->ht_dir = dir; | |
184 | htp->ht_time = time; | |
185 | } | |
186 | ||
187 | hd_dumptrace (hdp) | |
188 | struct hdcb *hdp; | |
189 | { | |
190 | register int i, ltrace; | |
191 | register struct hdlctrace *htp; | |
192 | ||
193 | freezetrace = 1; | |
194 | hd_status (hdp); | |
195 | printf ("retransmit queue:"); | |
196 | for (i = 0; i < 8; i++) | |
197 | printf (" %x", hdp -> hd_retxq[i]); | |
198 | printf ("\n"); | |
199 | ltrace = hdp -> hd_xcp -> xc_ltrace; | |
200 | hdp -> hd_xcp -> xc_ltrace = 1; | |
201 | for (i = 0; i < NTRACE; i++) { | |
202 | htp = &hdtrace[(lasttracelogged + i) % NTRACE]; | |
203 | if (htp->ht_hdp != hdp || htp->ht_frame == 0) | |
204 | continue; | |
205 | printf ("%d/%d ", htp->ht_time.tv_sec & 0xff, | |
206 | htp->ht_time.tv_usec / 10000); | |
207 | hd_trace (htp->ht_hdp, htp->ht_dir, | |
208 | mtod (htp->ht_frame, struct Hdlc_frame *)); | |
209 | m_freem (htp->ht_frame); | |
210 | htp->ht_frame = 0; | |
211 | } | |
212 | hdp -> hd_xcp -> xc_ltrace = ltrace; | |
213 | freezetrace = 0; | |
214 | } | |
215 | #endif |