#!/bin/sh
+Wait_for_carrier ()
+{
+ # $1 = network device
+ echo -n "Waiting for link to come up on $1... "
+ ip link set $1 up
+ for step in $(seq 1 15)
+ do
+ carrier=$(cat /sys/class/net/$1/carrier \
+ 2>/dev/null)
+ case "${carrier}" in
+ 1)
+ echo -e "\nLink is up"
+ return
+ ;;
+ *)
+ # Counter
+ echo -n "$step "
+ ;;
+ esac
+ sleep 1
+ done
+ echo -e "\nError - carrier not detected on $1."
+ ip link set $1 down
+}
+
Select_eth_device ()
{
# Boot type in initramfs's config
then
# only one interface : no choice
echo "DEVICE=$l_interfaces" >> /conf/param.conf
+ Wait_for_carrier $l_interfaces
return
fi
case "${ARGUMENT}" in
live-netdev=*)
NETDEV="${ARGUMENT#live-netdev=}"
+
+ # Check if NETDEV is a valid MAC address
+ if echo "$NETDEV" | grep -Eq '^[0-9A-Fa-f]{2}[:-]([0-9A-Fa-f]{2}[:-]){4}[0-9A-Fa-f]{2}$'
+ then
+ echo "NETDEV is a valid MAC address."
+
+ # Retrieve the device name associated with the MAC address
+ DEVICE_NAME=$(ip -o link | awk -v mac="$NETDEV" '$0 ~ mac{print substr($2, 1, length($2)-1)}')
+ if [ -n "$DEVICE_NAME" ]
+ then
+ echo "Device name for MAC address $NETDEV is $DEVICE_NAME."
+ NETDEV="$DEVICE_NAME"
+ fi
+ else
+ echo "NETDEV is not a valid MAC address. Assuming it is a device name."
+ fi
+
echo "DEVICE=$NETDEV" >> /conf/param.conf
- echo "Found live-netdev parameter, forcing to to use network device $NETDEV."
+ echo "Found live-netdev parameter, forcing it to use network device $NETDEV."
+ Wait_for_carrier "$NETDEV"
return
;;
esac
# ATTR{carrier} is not set if this is not done
echo -n " $interface ?"
ipconfig -c none -d $interface -t 1 >/dev/null 2>&1
+ sleep 1
done
echo ''
do
for interface in $l_interfaces
do
+ ip link set $interface up
carrier=$(cat /sys/class/net/$interface/carrier \
2>/dev/null)
# link detected
1)
echo "Connected $interface found"
# inform initrd's init script :
- found_eth_dev="$interface"
+ found_eth_dev="$found_eth_dev $interface"
+ found_eth_dev="$(echo $found_eth_dev | sed -e "s/^[[:space:]]*//g")"
;;
esac
done