Initial import from FreeBSD RELENG_4:
[dragonfly.git] / usr.sbin / i4b / isdntrace / unknownl3.c
1 /*
2  * Copyright (c) 2000 Hellmuth Michaelis. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  *
25  *---------------------------------------------------------------------------
26  *
27  *      unknownl3.c - print L3 packets with unknown PD
28  *      ----------------------------------------------
29  *
30  *      $Id: unknownl3.c,v 1.2 2000/02/13 15:26:52 hm Exp $
31  *
32  * $FreeBSD: src/usr.sbin/i4b/isdntrace/unknownl3.c,v 1.1.2.1 2001/08/01 23:07:06 obrien Exp $
33  *
34  *      last edit-date: [Sun Feb 13 14:16:44 2000]
35  *
36  *---------------------------------------------------------------------------*/
37
38 #include "trace.h"
39
40 /*---------------------------------------------------------------------------*
41  *      decode unknown protocol
42  *---------------------------------------------------------------------------*/
43 void
44 decode_unknownl3(char *pbuf, int n, int off, unsigned char *buf, int raw)
45 {
46         int pd;
47         int j;
48         int i;
49
50         if(n <= 0)
51                 return;
52
53         *pbuf = '\0';
54         
55         if(raw)
56         {
57                 for (i = 0; i < n; i += 16)
58                 {
59                         sprintf((pbuf+strlen(pbuf)),"Dump:%.3d  ", i+off);
60                         for (j = 0; j < 16; j++)
61                                 if (i + j < n)
62                                         sprintf((pbuf+strlen(pbuf)),"%02x ", buf[i + j]);
63                                 else
64                                         sprintf((pbuf+strlen(pbuf)),"   ");
65                         sprintf((pbuf+strlen(pbuf)),"      ");
66                         for (j = 0; j < 16 && i + j < n; j++)
67                                 if (isprint(buf[i + j]))
68                                         sprintf((pbuf+strlen(pbuf)),"%c", buf[i + j]);
69                                 else
70                                         sprintf((pbuf+strlen(pbuf)),".");
71                         sprintf((pbuf+strlen(pbuf)),"\n");
72                 }
73         }
74
75         i = 0;
76                 
77         /* protocol discriminator */
78
79         pd = buf[i];
80
81         sprintf((pbuf+strlen(pbuf)), "PD%02X: ", pd);   
82
83         if(pd >= 0x00 && pd <= 0x07)
84                 sprintf((pbuf+strlen(pbuf)), "pd=User-User (0x%02x)",pd);
85         else if(pd == 0x08)
86                 sprintf((pbuf+strlen(pbuf)), "pd=Q.931/I.451");
87         else if(pd >= 0x10 && pd <= 0x3f)
88                 sprintf((pbuf+strlen(pbuf)), "pd=Other Layer 3 or X.25 (0x%02x)",pd);
89         else if(pd >= 0x40 && pd <= 0x4f)
90                 sprintf((pbuf+strlen(pbuf)), "pd=National Use (0x%02x)",pd);
91         else if(pd >= 0x50 && pd <= 0xfe)
92                 sprintf((pbuf+strlen(pbuf)), "pd=Other Layer 3 or X.25 (0x%02x)",pd);
93         else
94                 sprintf((pbuf+strlen(pbuf)), "pd=Reserved (0x%02x)",pd);
95
96         sprintf((pbuf+strlen(pbuf)), "\n     [");       
97         for(j = 0; j < (n-i); j++)
98         {
99                 sprintf((pbuf+strlen(pbuf)),"0x%02x ", buf[j+i]);
100         }
101         
102         sprintf((pbuf+strlen(pbuf)),"]\n");
103 }
104
105 /* EOF */
106