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1 #!/bin/sh | |
2 # | |
3 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | |
4 # | |
5 # Use of this source code is governed by a BSD-style license | |
6 # that can be found in the LICENSE file in the root of the source | |
7 # tree. An additional intellectual property rights grant can be found | |
8 # in the file PATENTS. All contributing project authors may | |
9 # be found in the AUTHORS file in the root of the source tree. | |
10 # | |
11 # This script is used to record a tcp dump of running a loop back test. | |
12 # Example use case: | |
13 # | |
14 # $ ./run-server.sh & # spawns a server to serve the html pages | |
15 # # on localhost:8080 | |
16 # | |
17 # (recording 3 tests with 5mins and bitrates 1mbps, 2mbps and 3mbps) | |
18 # $ sudo -v # Caches sudo credentials needed | |
19 # # for tcpdump | |
20 # $ export INTERFACE=eth1 # Defines interface to record packets | |
21 # $ export CHROME_UNDER_TESTING=./chrome # Define which chrome to run on tests | |
22 # $ export TEST="http://localhost:8080/loopback_test.html?auto-mode=true" | |
23 # $ record-test.sh ./record1.pcap "$TEST&duration=300&max-video-bitrate=1000" | |
24 # $ record-test.sh ./record2.pcap "$TEST&duration=300&max-video-bitrate=2000" | |
25 # $ record-test.sh ./record3.pcap "$TEST&duration=300&max-video-bitrate=3000" | |
26 | |
27 # Indicate an error and exit with a nonzero status if any of the required | |
28 # environment variables is Null or Unset. | |
29 : ${INTERFACE:?"Need to set INTERFACE env variable"} | |
30 : ${CHROME_UNDER_TESTING:?"Need to set CHROME_UNDER_TESTING env variable"} | |
31 | |
32 if [ ! -x "$CHROME_UNDER_TESTING" ]; then | |
33 echo "CHROME_UNDER_TESTING=$CHROME_UNDER_TESTING does not seem to exist." | |
34 exit 1 | |
35 fi | |
36 | |
37 if [ "$#" -ne 2 ]; then | |
38 echo "Usage: $0 <test-url> <network-dump>" | |
39 exit 1 | |
40 fi | |
41 TEST_URL=$1 | |
42 OUTPUT_RECORDING=$2 | |
43 | |
44 sudo -nv > /dev/null 2>&1 | |
45 if [ $? != 0 ]; then | |
46 echo "Run \"sudo -v\" to cache your credentials." \ | |
47 "They are needed to run tcpdump." | |
48 exit | |
49 fi | |
50 | |
51 echo "Recording $INTERFACE into ${OUTPUT_RECORDING}" | |
52 sudo -n tcpdump -i "$INTERFACE" -w - > "${OUTPUT_RECORDING}" & | |
53 TCPDUMP_PID=$! | |
54 | |
55 echo "Starting ${CHROME_UNDER_TESTING} with ${TEST_URL}." | |
56 # Using real camera instead of --use-fake-device-for-media-stream as it | |
57 # does not produces images complex enough to reach 3mbps. | |
58 # Flag --use-fake-ui-for-media-stream automatically allows getUserMedia calls. | |
59 $CHROME_UNDER_TESTING --use-fake-ui-for-media-stream "${TEST_URL}" | |
60 kill ${TCPDUMP_PID} | |
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