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Jan Wachsmuth 2024-01-13 20:01:50 +01:00 committed by GitHub
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persistent-hook.md
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@ -56,9 +56,14 @@ chmod 777 /vendor/user/ws_server
> **Note:** > **Note:**
> The ***telnetd*** is NOT installed, because the file is missing in the (read only) directory /usr/bin. > The ***telnetd*** is NOT installed, because the file is missing in the (read only) directory /usr/bin.
Just append the code below at the end of that file. On the device where the script was not present, I've just created it. Create a file in ***/vendor/user*** with the name ***usermod.sh*** and the following content. It has been tested with devices connected via ethernet and wireless. Please adjust the IP address for the web server (in my case 10.1.1.22).
``` ```
sleep 5 cd /vendor/user
cat <<\EOF >> /vendor/user/usermod.sh
#!/bin/sh
# user modification to allow telnet to the device and shut down WiFi after 5 minutes if device is connected by ethernet.
sleep 10
# get telnetd from full version of busybox and start in background # get telnetd from full version of busybox and start in background
mkdir /tmp/bin mkdir /tmp/bin
wget -O /tmp/bin/busybox -T 5 http://10.1.1.22/linkplay/a31/bin/busybox -q wget -O /tmp/bin/busybox -T 5 http://10.1.1.22/linkplay/a31/bin/busybox -q
@ -83,7 +88,16 @@ unset lanIPup
# Uncomment to disable sleep after 15 minutes (I haven't used this code - just an example from Crymeiriver) # Uncomment to disable sleep after 15 minutes (I haven't used this code - just an example from Crymeiriver)
#while true; do sleep 60; echo 'AXX+MUT+000' >/dev/ttyS0; done & #while true; do sleep 60; echo 'AXX+MUT+000' >/dev/ttyS0; done &
EOF
``` ```
Add a link to the new script in the existing ***user.sh*** script. Here's the content:
```
echo '' >> user.sh
echo '/vendor/user/usermod.sh &' >> user.sh
echo '' >> user.sh
```
The shutdown of the 'apcli0' WiFi interface does not work within the script when called in the first place, however it works a bit later if executed manually. So I added the 300 seconds (5 minutes) sleep and executed the command twice. Now it looks that it works as expected. I also added some code, so that the WiFi interface is NOT shut down if the Ethernet / LAN interface (eth2) does not get an IP address. The shutdown of the 'apcli0' WiFi interface does not work within the script when called in the first place, however it works a bit later if executed manually. So I added the 300 seconds (5 minutes) sleep and executed the command twice. Now it looks that it works as expected. I also added some code, so that the WiFi interface is NOT shut down if the Ethernet / LAN interface (eth2) does not get an IP address.
Compared to the the section [Enable telnetd](/TELNETD.md), the code above has a little enhancement included, because the downloaded version of busybox is used as the shell ***/tmp/bin/ash*** instead of "build-in" version. You can see the difference, because the shell prompt message is ***BusyBox v1.23.2 (2016-09-27 07:54:34 CEST) built-in shell (ash)*** instead of ***BusyBox v1.12.1 () built-in shell (ash)***. Compared to the the section [Enable telnetd](/TELNETD.md), the code above has a little enhancement included, because the downloaded version of busybox is used as the shell ***/tmp/bin/ash*** instead of "build-in" version. You can see the difference, because the shell prompt message is ***BusyBox v1.23.2 (2016-09-27 07:54:34 CEST) built-in shell (ash)*** instead of ***BusyBox v1.12.1 () built-in shell (ash)***.