Comments (34)
svpcom
commented on August 13, 2024
1
Try latest version from master. It support IP tunnels which send keepalive packets (you don't need to do any "echo | nc" calls for test). Also use python services for first tests (sh scripts are obsolete)
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svpcom
commented on August 13, 2024
I've had a bad experience with Alfa AWUS1900 (RTL8814AU). Try with both RTL8812AU. Also try yo use different band or channel (2.4 <-> 5.8 GHz)
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fmckeogh
commented on August 13, 2024
I'm now using two RTL8812AU's on one machine, with the rx_standalone script modified to output on port 5601.
I get this output, (5G is the exact same except on channel 149. Swapping wlan1 and wlan2 makes no difference):
$ sudo ./scripts/rx_standalone.sh wlan1
Setting wlan1 to channel 6
wlan1 has DLT_IEEE802_11_RADIO Encap
537821 PKT 0:0:0:0:0:0
538822 PKT 0:0:0:0:0:0
539823 PKT 0:0:0:0:0:0
540824 PKT 0:0:0:0:0:0
541825 PKT 0:0:0:0:0:0
542827 PKT 0:0:0:0:0:0
$ sudo ./scripts/tx_standalone.sh wlan2
Setting wlan2 to channel 6
Listen on 5600 for wlan2
No output on port 5601, and echo test | nc -u 127.0.0.1 5600 blocks.
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fmckeogh
commented on August 13, 2024
Done, I'm getting this output:
$ sudo ./wfb_tx -K tx.key wlan1
Listen on 5600 for wlan1
$ sudo ./wfb_rx -K rx.key wlan2
Error: unknown encapsulation on wlan2
(No difference when swapping interfaces)
Thanks for your help :)
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svpcom
commented on August 13, 2024
What is shown by ethtool -i wlan1 and ethtool -i wlan2 ?
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fmckeogh
commented on August 13, 2024
$ ethtool -i wlan1
driver: rtl88xxau
version:
firmware-version:
expansion-rom-version:
bus-info: 1-1.5:1.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
$ ethtool -i wlan2
driver: rtl88xxau
version:
firmware-version:
expansion-rom-version:
bus-info: 1-1.2:1.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
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svpcom
commented on August 13, 2024
What is version of rtl88xxau driver? Do git branch to show
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svpcom
commented on August 13, 2024
And modinfo ./88XXau.ko | grep version
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fmckeogh
commented on August 13, 2024
$ git branch
* v5.3.4
$ modinfo ./88XXau.ko | grep version
version: v5.3.4_28226.20180614_COEX20171103-6c6d
srcversion: DC30DE0EB3C235E62E5B42F
vermagic: 4.14.98-v7+ SMP mod_unload modversions ARMv7 p2v8
parm: rtw_chip_version:int
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svpcom
commented on August 13, 2024
This version is not compatible with WFB. Use v5.2.20 from https://github.com/svpcom/rtl8812au
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svpcom
commented on August 13, 2024
git checkout v5.2.20
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fmckeogh
commented on August 13, 2024
🤦♂ my bad, building now
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fmckeogh
commented on August 13, 2024
Okay, I've installed the correct version.
$ modinfo ./88XXau.ko | grep version
version: v5.2.20.2_28373.20180619
srcversion: 2371CE7C983AA2C18EBE8C6
vermagic: 4.14.98-v7+ SMP mod_unload modversions ARMv7 p2v8
parm: rtw_chip_version:int
$ sudo ethtool -i wlan1
driver: rtl88xxau
version:
firmware-version:
expansion-rom-version:
bus-info: 1-1.2:1.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
but I'm getting the same error:
$ sudo ./wfb_rx -K gs.key wlan1
Error: unknown encapsulation on wlan1
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svpcom
commented on August 13, 2024
Use rx_standalone.sh (or code from it) to setup wifi card in monitor mode
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svpcom
commented on August 13, 2024
Or use python -m telemetry.server gs wlan1 and python -m telemetry.server drone wlan2 (recommended)
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fmckeogh
commented on August 13, 2024
$ sudo python -m telemetry.server gs wlan1
2019-05-15 18:38:44+0100 [-] Log opened.
2019-05-15 18:38:44+0100 [-] # iw reg set BO
2019-05-15 18:38:44+0100 [-] # ifconfig wlan1 down
2019-05-15 18:38:44+0100 [-] # iw dev wlan1 set monitor otherbss
2019-05-15 18:38:44+0100 [-] # ifconfig wlan1 up
2019-05-15 18:38:45+0100 [-] # iw dev wlan1 set channel 161 HT20
2019-05-15 18:38:45+0100 [-] Connect telem stream 2(RX), 1(TX) to 127.0.0.1:14550
2019-05-15 18:38:45+0100 [-] UDPProxyProtocol starting on 35970
2019-05-15 18:38:45+0100 [-] UDPProxyProtocol starting on 14600
2019-05-15 18:38:45+0100 [-] UDPProxyProtocol starting on 55851
2019-05-15 18:38:45+0100 [-] Telem RX: ./wfb_rx -p 2 -u 14600 -K ./gs.key -k 1 -n 2 wlan1
2019-05-15 18:38:45+0100 [-] Telem TX: ./wfb_tx -p 1 -u 14601 -K ./gs.key -B 20 -G long -S 1 -L 0 -M 1 -k 1 -n 2 wlan1
2019-05-15 18:38:45+0100 [-] AntennaFactory starting on 8001
2019-05-15 18:38:45+0100 [-] Started telem rx
2019-05-15 18:38:45+0100 [-] Started telem tx
2019-05-15 18:38:45+0100 [-] Send video stream 3 to 127.0.0.1:5600
2019-05-15 18:38:45+0100 [-] AntennaFactory starting on 8002
2019-05-15 18:38:45+0100 [-] Started video rx
2019-05-15 18:38:45+0100 [-] Video: ./wfb_rx -p 3 -c 127.0.0.1 -u 5600 -K ./gs.key -k 8 -n 12 wlan1
2019-05-15 18:38:45+0100 [-] UDPProxyProtocol starting on 14800
2019-05-15 18:38:45+0100 [-] UDPProxyProtocol starting on 32941
2019-05-15 18:38:45+0100 [-] Tunnel RX: ./wfb_rx -p 5 -u 14800 -K ./gs.key -k 1 -n 2 wlan1
2019-05-15 18:38:45+0100 [-] Tunnel TX: ./wfb_tx -p 4 -u 14801 -K ./gs.key -B 20 -G long -S 1 -L 0 -M 1 -k 1 -n 2 wlan1
2019-05-15 18:38:45+0100 [-] AntennaFactory starting on 8003
2019-05-15 18:38:45+0100 [-] Started tunnel rx
2019-05-15 18:38:45+0100 [-] Started tunnel tx
2019-05-15 18:38:45+0100 [-] telem tx: Listen on 14601 for wlan1
2019-05-15 18:38:45+0100 [-] telem rx: wlan1 has DLT_IEEE802_11_RADIO Encap
2019-05-15 18:38:45+0100 [-] video rx: wlan1 has DLT_IEEE802_11_RADIO Encap
2019-05-15 18:38:45+0100 [-] tunnel tx: Listen on 14801 for wlan1
2019-05-15 18:38:45+0100 [-] tunnel rx: wlan1 has DLT_IEEE802_11_RADIO Encap
$ sudo python -m telemetry.server drone wlan2
2019-05-15 18:39:23+0100 [-] Log opened.
2019-05-15 18:39:23+0100 [-] # iw reg set BO
2019-05-15 18:39:23+0100 [-] # ifconfig wlan2 down
2019-05-15 18:39:23+0100 [-] # iw dev wlan2 set monitor otherbss
2019-05-15 18:39:23+0100 [-] # ifconfig wlan2 up
2019-05-15 18:39:23+0100 [-] # iw dev wlan2 set channel 161 HT20
2019-05-15 18:39:23+0100 [-] Listen for telem stream 1(RX), 2(TX) on 0.0.0.0:14560
2019-05-15 18:39:23+0100 [-] UDPProxyProtocol starting on 14560
2019-05-15 18:39:23+0100 [-] UDPProxyProtocol starting on 14700
2019-05-15 18:39:23+0100 [-] UDPProxyProtocol starting on 42107
2019-05-15 18:39:23+0100 [-] Telem RX: ./wfb_rx -p 1 -u 14700 -K ./drone.key -k 1 -n 2 wlan2
2019-05-15 18:39:23+0100 [-] Telem TX: ./wfb_tx -p 2 -u 14701 -K ./drone.key -B 20 -G long -S 1 -L 0 -M 1 -k 1 -n 2 wlan2
2019-05-15 18:39:23+0100 [-] Started telem rx
2019-05-15 18:39:23+0100 [-] Started telem tx
2019-05-15 18:39:23+0100 [-] Listen for video stream 3 on 0.0.0.0:5602
2019-05-15 18:39:23+0100 [-] Started video tx
2019-05-15 18:39:23+0100 [-] Video: ./wfb_tx -p 3 -u 5602 -K ./drone.key -B 20 -G long -S 1 -L 0 -M 1 -k 8 -n 12 wlan2
2019-05-15 18:39:23+0100 [-] UDPProxyProtocol starting on 14900
2019-05-15 18:39:23+0100 [-] UDPProxyProtocol starting on 58327
2019-05-15 18:39:23+0100 [-] Tunnel RX: ./wfb_rx -p 4 -u 14900 -K ./drone.key -k 1 -n 2 wlan2
2019-05-15 18:39:23+0100 [-] Tunnel TX: ./wfb_tx -p 5 -u 14901 -K ./drone.key -B 20 -G long -S 1 -L 0 -M 1 -k 1 -n 2 wlan2
2019-05-15 18:39:23+0100 [-] Started tunnel rx
2019-05-15 18:39:23+0100 [-] Started tunnel tx
2019-05-15 18:39:23+0100 [-] video tx: Listen on 5602 for wlan2
2019-05-15 18:39:23+0100 [-] telem tx: Listen on 14701 for wlan2
2019-05-15 18:39:23+0100 [-] telem rx: wlan2 has DLT_IEEE802_11_RADIO Encap
2019-05-15 18:39:23+0100 [-] tunnel tx: Listen on 14901 for wlan2
2019-05-15 18:39:23+0100 [-] tunnel rx: wlan2 has DLT_IEEE802_11_RADIO Encap
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fmckeogh
commented on August 13, 2024
Nothing happens when the other side is started, is it working?
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svpcom
commented on August 13, 2024
Run python -m telemetry.cli gs in other console
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svpcom
commented on August 13, 2024
Tunnel link should not be in state "link lost"
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fmckeogh
commented on August 13, 2024
Unfortunately it is :(
I also regenerated the keys to no avail.
$ modinfo 88XXau
filename: /lib/modules/4.14.98-v7+/updates/88XXau.ko
version: v5.2.20.2_28373.20180619
author: Realtek Semiconductor Corp.
description: Realtek Wireless Lan Driver
license: GPL
srcversion: 2371CE7C983AA2C18EBE8C6
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fmckeogh
commented on August 13, 2024
I left it for a bit, and sometimes it flickers and a few packets are maybe sent?
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svpcom
commented on August 13, 2024
It seems that it works (session detected) but something prevent normal operation. Try this:
- Change
wifi_channelfrom 165 to 1 in config file (some cards are incompatible with 5GHz band) - Check that NetworkManager is disabled or your wifi cards are blacklisted in its config. (
unmanaged-devices=interface-name:wlan1,interface-name:wlan2) - Check that wifi cards have enough power (RPI has too weak usb ports for high-power wifi cards). Check them on linux PC or use external +5V (or powered USB hub) for wifi cards.
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fmckeogh
commented on August 13, 2024
I changed wifi_channel in telemetry/conf/master.cfg, still link lost.
NetworkManager is not installed, and neither wifi card is in /etc/network/interfaces
I'm trying it on my Ubuntu box now, but it doesn't look like it's working here either.
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fmckeogh
commented on August 13, 2024
Okay, now I'm having a few issues building the driver, may I ask what kernel version you are using?
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svpcom
commented on August 13, 2024
I use 4.14.52 on NanoPI NEO2 and 4.18.20-100.fc27.x86_64 on PC
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svpcom
commented on August 13, 2024
Try to use powered USB hub in case of RPI
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fmckeogh
commented on August 13, 2024
Progress!!
I can start both the gs and drone, and the tunnel works! However, when I listened to port 5600 and send "test" over port 5602, it successfully sent the text but then I got link lost everywhere. Restarting just the drone didn't help, I had to restart both before it would establish a tunnel again.
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svpcom
commented on August 13, 2024
"Link lost" message shown if there are no packets in channel during 1 second. So you need to emit heartbeat packets if no traffic available. (This is only for video and mavlink streams, for tunnel hearbeart generation is builtin)
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svpcom
commented on August 13, 2024
But this is strange that sending one packet into mavlink stream broke IP tunnel. This should not be happened
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svpcom
commented on August 13, 2024
Don't forget to add
[keyfile]
unmanaged-devices=interface-name:wlan1,interface-name:wlan2
to /etc/NetworkManager/NetworkManager.conf
Also try to disable firewall
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svpcom
commented on August 13, 2024
For test video you can use:
gst-launch-1.0 videotestsrc ! videoconvert ! video/x-raw,format=NV12,framerate=30/1,width=1280,height=720 ! clockoverlay ! x264enc tune=zerolatency bitrate=4000 ! rtph264pay ! udpsink port=5602
and
gst-launch-1.0 udpsrc do-timestamp=true port=5600 caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264' ! rtph264depay ! avdec_h264 ! xvimagesink
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fmckeogh
commented on August 13, 2024
I've added that, but I'm getting a lot of lost packets.
I can get semi-stable video if I reduce the resolution down to 240p, but the packet loss is still around 50%. The peak number I could get with 720p video was around 400 packets a second.
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svpcom
commented on August 13, 2024
Try on real hardware. It seems that is virtualbox issues
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fmckeogh
commented on August 13, 2024
I still haven't had success on real hardware, but I tried Ubuntu Desktop 18.04, and it works! Full 720p stream, no visual issues, and only 1 or 2 packets dropped every few seconds :D
Thank you so much for all your help :)
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