1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <sys/types.h>
#include <at.h>
#include <snoop.h>
static void show_rtmp_tuples(uint8_t *, int);
static char *
rtmp_func_long(uint8_t fun)
{
switch (fun) {
case RTMP_REQ:
return ("Request");
case RTMP_RDR_SH:
return ("Route Data Request, split horizon");
case RTMP_RDR_NSH:
return ("Route Data Request, no split horizon");
default:
return ("unknown");
}
}
static char *
rtmp_func_short(uint8_t fun)
{
switch (fun) {
case RTMP_REQ:
return ("Req");
case RTMP_RDR_SH:
return ("RDR, sh");
case RTMP_RDR_NSH:
return ("RDR, no sh");
default:
return ("unknown");
}
}
void
interpret_rtmp(int flags, struct ddp_hdr *ddp, int len)
{
uint8_t *data;
uint16_t snet;
uint8_t node;
int tuples;
int runt;
char extended;
len -= DDPHDR_SIZE;
if (len < 0)
goto out;
data = (uint8_t *)ddp + DDPHDR_SIZE;
switch (ddp->ddp_type) {
case DDP_TYPE_RTMPRQ: /* simple rtmp */
if (len < 1)
goto out;
if (flags & F_SUM) {
(void) snprintf(get_sum_line(), MAXLINE,
"RTMP F=%s",
rtmp_func_short(data[0]));
}
if (flags & F_DTAIL) {
show_header("RTMP: ", "RTMP Header", len);
show_space();
(void) snprintf(get_line(0, 0), get_line_remain(),
"Func = %d (%s)",
data[0], rtmp_func_long(data[0]));
}
break;
case DDP_TYPE_RTMPRESP: /* RTMP data */
if (len < 3)
goto out;
snet = get_short(data);
if (data[2] != 8) /* ID length is always 8 */
return;
node = data[3]; /* assume id_len == 8 */
extended = (data[6] != RTMP_FILLER) &&
(get_short(&data[4]) != 0);
tuples = (len - 4) / 3;
runt = (len - 4) % 3; /* integral length? */
if (flags & F_SUM) {
(void) snprintf(get_sum_line(), MAXLINE,
"RTMP Data Snet=%d, Snode=%d%s",
snet, node, runt != 0 ? " (short)" : "");
}
if (flags & F_DTAIL) {
show_header("RTMP: ", "RTMP Header", len);
show_space();
(void) snprintf(get_line(0, 0), get_line_remain(),
"RTMP Data, Length = %d%s",
len, runt != 0 ? " (short packet)" : "");
(void) snprintf(get_line(0, 0), get_line_remain(),
"Senders Net = %d, Sender Node %d",
snet, node);
if (extended)
show_rtmp_tuples(&data[4], tuples);
else
show_rtmp_tuples(&data[7], tuples-1);
}
break;
}
return;
out:
if (flags & F_SUM) {
(void) snprintf(get_sum_line(), MAXLINE,
"RTMP (short packet)");
}
if (flags & F_DTAIL) {
show_header("RTMP: ", "RTMP Header", len);
show_space();
(void) snprintf(get_line(0, 0), get_line_remain(),
"(short packet)");
}
}
static void
show_rtmp_tuples(uint8_t *p, int tuples)
{
while (tuples > 0) {
if (p[2] & RTMP_EXTEND) { /* extended tuple? */
(void) snprintf(get_line(0, 0),
get_line_remain(),
"Network = %d-%d, Distance = %d",
get_short(p), get_short(&p[3]),
p[2] & RTMP_DIST_MASK);
p += 6;
tuples -= 2;
} else {
(void) snprintf(get_line(0, 0),
get_line_remain(),
"Network = %d, Distance = %d",
get_short(p), p[2]);
p += 3;
tuples--;
}
}
}
|
