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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*************************************************************************************************************
Copyright (c) 2012-2015, Symphony Teleca Corporation, a Harman International Industries, Incorporated company
Copyright (c) 2016-2017, Harman International Industries, Incorporated
All rights reserved.
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.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS LISTED "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 COPYRIGHT OWNER OR CONTRIBUTORS LISTED 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.
Attributions: The inih library portion of the source code is licensed from
Brush Technology and Ben Hoyt - Copyright (c) 2009, Brush Technology and Copyright (c) 2009, Ben Hoyt.
Complete license and copyright information can be found at
https://github.com/benhoyt/inih/commit/74d2ca064fb293bc60a77b0bd068075b293cf175.
*************************************************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <glib.h>
#include "openavb_rawsock.h"
#include "openavb_avtp.h"
#ifdef UBUNTU
static int ethertype = ETHERTYPE_AVTP;
#else
static int ethertype = ETHERTYPE_8021Q;
#endif
#define MAX_NUM_FRAMES 10
static bool bRunning = TRUE;
static char* interface = NULL;
#define NUM_STREAMS 256
#define REPORT_SECONDS 10
static GOptionEntry entries[] =
{
{ "interface", 'i', 0, G_OPTION_ARG_STRING, &interface, "network interface", "NAME" },
{ NULL }
};
int timespec_cmp(struct timespec *a, struct timespec *b)
{
if (a->tv_sec > b->tv_sec)
return 1;
else if (a->tv_sec < b->tv_sec)
return -1;
else {
if (a->tv_nsec > b->tv_nsec)
return 1;
else if (a->tv_nsec < b->tv_nsec)
return -1;
}
return 0;
}
void dumpAscii(U8 *pFrame, int i, int *j)
{
char c;
printf(" ");
while (*j <= i) {
c = pFrame[*j];
*j += 1;
if (!isprint(c) || isspace(c))
c = '.';
printf("%c", c);
}
}
void dumpFrameContent(U8 *pFrame, U32 len)
{
int i = 0, j = 0;
while (TRUE) {
if (i % 16 == 0) {
if (i != 0 ) {
// end of line stuff
dumpAscii(pFrame, (i < len ? i : len), &j);
printf("\n");
if (i >= len)
break;
}
if (i+1 < len) {
// start of line stuff
printf("0x%4.4d: ", i);
}
}
else if (i % 2 == 0) {
printf(" ");
}
if (i >= len)
printf(" ");
else
printf("%2.2x", pFrame[i]);
i += 1;
}
}
void dumpFrame(U8 *pFrame, U32 len, hdr_info_t *hdr)
{
printf("Frame received, ethertype=0x%x len=%u\n", hdr->ethertype, len);
printf("src: %s\n", ether_ntoa((const struct ether_addr*)hdr->shost));
printf("dst: %s\n", ether_ntoa((const struct ether_addr*)hdr->dhost));
if (hdr->vlan) {
printf("VLAN pcp=%u, vid=%u\n", (unsigned)hdr->vlan_pcp, hdr->vlan_vid);
}
dumpFrameContent(pFrame, len);
printf("\n");
}
int main(int argc, char* argv[])
{
GError *error = NULL;
GOptionContext *context;
context = g_option_context_new("- rawsock listenr");
g_option_context_add_main_entries(context, entries, NULL);
if (!g_option_context_parse(context, &argc, &argv, &error))
{
printf("error: %s\n", error->message);
exit(1);
}
if (interface == NULL) {
printf("error: must specify network interface\n");
exit(2);
}
void* rs = openavbRawsockOpen(interface, TRUE, FALSE, ethertype, 0, MAX_NUM_FRAMES);
if (!rs) {
printf("error: failed to open raw socket (are you root?)\n");
exit(3);
}
hdr_info_t hdr;
U8 *pBuf, *pFrame, tmp8;
U32 offset, len;
U16 uid, i;
long nTotal = 0, nRecv[NUM_STREAMS];
for (i = 0; i < NUM_STREAMS; i++)
nRecv[i] = 0;
struct timespec now, report;
clock_gettime(CLOCK_MONOTONIC, &report);
report.tv_sec += REPORT_SECONDS;
while (bRunning) {
pBuf = openavbRawsockGetRxFrame(rs, 1000, &offset, &len);
if (pBuf) {
pFrame = pBuf + offset;
offset = openavbRawsockRxParseHdr(rs, pBuf, &hdr);
if ((int)offset < 0) {
printf("error parsing frame header");
}
else {
#ifndef UBUNTU
if (hdr.ethertype == ETHERTYPE_8021Q) {
// Oh! Need to look past the VLAN tag
U16 vlan_bits = ntohs(*(U16 *)(pFrame + offset));
hdr.vlan = TRUE;
hdr.vlan_vid = vlan_bits & 0x0FFF;
hdr.vlan_pcp = (vlan_bits >> 13) & 0x0007;
offset += 2;
hdr.ethertype = ntohs(*(U16 *)(pFrame + offset));
offset += 2;
}
#endif
if (hdr.ethertype == ETHERTYPE_AVTP) {
//dumpFrame(pFrame + offset, len - offset, &hdr);
// Look for stream data frames
// (ignore control frames, including MAAP)
tmp8 = *(pFrame + offset);
if ((tmp8 & 0x80) == 0) {
// Find the unique ID in the streamID
uid = htons(*(U16*)(pFrame + offset + 10));
if (uid < NUM_STREAMS)
nRecv[uid]++;
nTotal++;
}
}
}
openavbRawsockRelRxFrame(rs, pBuf);
}
clock_gettime(CLOCK_MONOTONIC, &now);
if (timespec_cmp(&now, &report) >= 0) {
printf("total=%ld\t", nTotal);
nTotal = 0;
for (i = 0; i < NUM_STREAMS-1; i++) {
if (nRecv[i] > 0) {
printf("%d=%ld\t", i, nRecv[i]);
nRecv[i] = 0;
}
}
printf("\n");
report.tv_sec += REPORT_SECONDS;
}
}
openavbRawsockClose(rs);
return 0;
}
|
