#!/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
# If user force to use specific device, write it
for ARGUMENT in ${LIVE_BOOT_CMDLINE}
do
- case "${ARGUMENT}" in
- live-netdev=*)
- NETDEV="${ARGUMENT#live-netdev=}"
- echo "DEVICE=$NETDEV" >> /conf/param.conf
- echo "Found live-netdev parameter, forcing to to use network device $NETDEV."
- return
- ;;
- esac
+ case "${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."
+ # Assign NETDEV directly to $NETDEV
+ NETDEV="$NETDEV"
+ fi
+ echo "DEVICE=$NETDEV" >> /conf/param.conf
+ echo "Found live-netdev parameter, forcing it to use network device $NETDEV."
+ Wait_for_carrier "$NETDEV"
+ return
+ ;;
+ esac
+
done
else
l_interfaces="$DEVICE"
# 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
echo "Connected $interface found"
# inform initrd's init script :
found_eth_dev="$found_eth_dev $interface"
+ found_eth_dev="$(echo $found_eth_dev | sed -e "s/^[[:space:]]*//g")"
;;
esac
done