mirror of
https://github.com/PartialVolume/shredos.x86_64.git
synced 2026-02-20 09:35:26 +00:00
Fix repeating ifup when no RJ45 link
This commit is contained in:
PartialVolume
138
board/shredos/fsoverlay/usr/bin/shredos_net.sh
Executable file → Normal file
138
board/shredos/fsoverlay/usr/bin/shredos_net.sh
Executable file → Normal file
@@ -5,7 +5,7 @@
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# with those devices set up as DHCP hot plug. We then monitor the link
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# state (whether the ethernet cable is connected).
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#
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version=1.1-211123-1901
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version=1.2-251205-0017
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#
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# Forcefully shutdown all network interfaces if any are up
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ifdown -f -a
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@@ -52,10 +52,21 @@ do
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device_operstate="$device"_operstate
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device_status="$device"_status
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device_carrier="$device"_carrier
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device_carrier_up_count="$device"_carrier_up_count
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device_carrier_down_count="$device"_carrier_down_count
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# Keep a record of the previous carrier up and down counts so
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# we know if anything has changed and can take the appropriate action
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device_carrier_up_count="$device"_carrier_up_count
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eval "$device_carrier_up_count"=$(more /sys/class/net/$device/carrier_up_count)
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eval device_carrier_up_count_previous_result="\${$device_carrier_up_count}"
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device_carrier_down_count="$device"_carrier_down_count
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eval "$device_carrier_down_count"=$(more /sys/class/net/$device/carrier_down_count)
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eval device_carrier_down_count_previous_result="\${$device_carrier_down_count}"
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# no need to check the return status, whether it works or not we need
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# to initialise the device statuses.
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# ifdown $device
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# Obtain network device link status
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eval "$device_operstate"=$(more /sys/class/net/$device/operstate)
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@@ -74,15 +85,33 @@ do
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then
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active_device="none"
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fi
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ifup $device
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if [ $? == 0 ];
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then
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eval "$device_status"="up"
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echo "[OK] $device is up"
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active_device="$device"
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else
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eval "$device_status"="down"
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echo "[FAIL] $device ifup failed"
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if [ "$active_device" == "$device" ];
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then
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active_device="none"
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fi
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fi
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fi
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fi
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done
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# Now Monitor the link status of each network device
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# If we lose the link status 'down' then we bring down that network
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# device. ie it's association with an IPv4/IPv6 address is removed.
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# When the link status is 'up' then we bring the network back up
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# which means we request a IP address via DHCP. This is therefore
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# Now Monitor the carrier up down values of each network device
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# If carrier up or down changes, i.e. the network lead is unplugged
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# then we bring down that network device. It's association with an
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# IPv4/IPv6 address is removed. We then bring the interface back up,
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# even though no network lead may not be plugged in.
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#
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# When the link status is 'up' then we issue an ifup to makesure
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# its up. As it most likely is, it will say device already configured.
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# An IP address is requested via the DHCP protocol. This is therefore
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# acting as a hotplug for ethernet. We only need one active ethernet
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# connection, so on a system with multiple ethernet points as soon
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# as one is active and succesfully retrieves a IP addres via DHCP we
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@@ -94,73 +123,70 @@ do
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for device in $net_devices
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do
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# We're only interested in ethernet enxxxx or ethxx devices
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# We're only interested in ethernet enxxxx or ethxx devices
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if [[ "$device" == en* ]] || [[ "$device" == eth* ]]
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then
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# and we are only interested in one device being active at any one time
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if [ "$active_device" == "$device" ] || [ "$active_device" == "none" ];
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then
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# and we are only interested in one device being active at any one time
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if [ "$active_device" == "$device" ] || [ "$active_device" == "none" ];
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then
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# Obtain network device link status and carrier states
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device_operstate="$device"_operstate
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eval "$device_operstate"=$(more /sys/class/net/$device/operstate)
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eval device_operstate_result="\${$device_operstate}"
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device_carrier="$device"_carrier
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eval "$device_carrier"=$(more /sys/class/net/$device/carrier)
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eval device_carrier_result="\${$device_carrier}"
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device_carrier_up_count="$device"_carrier_up_count
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eval "$device_carrier_up_count"=$(more /sys/class/net/$device/carrier_up_count)
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eval device_carrier_up_count_result="\${$device_carrier_up_count}"
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device_carrier_down_count="$device"_carrier_down_count
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eval "$device_carrier_down_count"=$(more /sys/class/net/$device/carrier_down_count)
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eval device_carrier_down_count_result="\${$device_carrier_down_count}"
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device_status="$device"_status
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eval device_status_result="\${$device_status}"
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# eval echo "device=$device, status=""\${$device_status}"", device_operstate_result=$device_operstate_result, device_carrier_result=$device_carrier_result, device_status_result=$device_status_result"
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if [[ $device_carrier_result != 1 ]];
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if [ $device_carrier_down_count_previous_result != $device_carrier_down_count_result ];
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then
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if [[ $device_carrier_result != 0 ]];
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ifdown -f $device
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if [ $? == 0 ];
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then
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ifup $device
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if [ $? == 0 ];
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then
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eval "$device_status"="up"
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echo "[OK] $device is up"
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active_device="$device"
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else
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eval "$device_status"="down"
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echo "[FAIL] $device ifup failed"
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if [ "$active_device" == "$device" ];
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then
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active_device="none"
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fi
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fi
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eval "$device_status"="down"
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echo "[OK] $device is down"
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else
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echo "[FAIL] $device ifdown failed"
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fi
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fi
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device_carrier_down_count="$device"_carrier_down_count
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eval "$device_carrier_down_count"=$(more /sys/class/net/$device/carrier_down_count)
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eval device_carrier_down_count_previous_result="\${$device_carrier_down_count}"
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if [[ $device_operstate_result == down ]];
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# After the carrier is lost and the interface brought down, bring it back up
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# so DHCP requests will be issued as soon as it's plugged back in.
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ifup $device
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if [ $? == 0 ];
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then
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eval "$device_status"="up"
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echo "[OK] $device is up"
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else
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echo "[FAIL] $device ifup failed"
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fi
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fi
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if [ $device_carrier_up_count_previous_result != $device_carrier_up_count_result ];
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then
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if [[ $device_status_result == up ]];
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ifup $device
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if [ $? == 0 ];
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then
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ifdown -f $device
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if [ $? == 0 ];
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then
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eval "$device_status"="down"
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echo "[OK] $device is down"
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else
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echo "[FAIL] $device ifdown failed"
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fi
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fi
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else
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if [[ $device_status_result == down ]];
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then
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ifup $device
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if [ $? == 0 ];
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then
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eval "$device_status"="up"
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echo "[OK] $device is up"
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else
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echo "[FAIL] $device ifup failed"
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fi
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eval "$device_status"="up"
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echo "[OK] $device is up"
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else
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echo "[FAIL] $device ifup failed"
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fi
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# update previous carrier up count value
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device_carrier_up_count="$device"_carrier_up_count
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eval "$device_carrier_up_count"=$(more /sys/class/net/$device/carrier_up_count)
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eval device_carrier_up_count_previous_result="\${$device_carrier_up_count}"
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fi
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fi
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fi
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