#!/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="${ARGUMENT#live-netdev=}"
- # net device could be specified by MAC address
- hex="[0-9A-Fa-f][0-9A-Fa-f]"
- case "${NETDEV}" in
- ${hex}:${hex}:${hex}:${hex}:${hex}:${hex})
- # MAC address; record it and select later
- netdev_mac_addr="${NETDEV}"
- ;;
- *)
- # interface name
- echo "DEVICE=$NETDEV" >> /conf/param.conf
- echo "Found live-netdev parameter, forcing to to use network device $NETDEV."
- return
- ;;
- esac
- ;;
- esac
- done
- else
- l_interfaces="$DEVICE"
- fi
+ # If user force to use specific device, write it
+ for ARGUMENT in ${LIVE_BOOT_CMDLINE}
+ do
+ case "${ARGUMENT}" in
+ live-netdev=*)
+ NETDEV="${ARGUMENT#live-netdev=}"
+
+ # Check if NETDEV is a valid MAC address
+ if echo "$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 it to use network device $NETDEV."
+ Wait_for_carrier "$NETDEV"
+ return
+ ;;
+ esac
+ done
+ else
+ l_interfaces="$DEVICE"
+ fi
found_eth_dev=""
while true
# 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 ''
- for step in 1 2 3 4 5
- do
- for interface in $l_interfaces
- do
- if [ -z "$netdev_mac_addr" ]; then
- carrier=$(cat /sys/class/net/$interface/carrier \
- 2>/dev/null)
- # link detected
-
- case "${carrier}" in
- 1)
- echo "Connected $interface found"
- # inform initrd's init script :
- found_eth_dev="$found_eth_dev $interface"
- ;;
- esac
- else
- # MAC addr given, check for that
- mac_addr=$(ifconfig "$interface" \
- | grep HWaddr \
- | { read _ _ _ _ mac_addr; echo $mac_addr; })
- if [ "$mac_addr" = "$netdev_mac_addr" ]; then
- found_eth_dev="$interface"
- fi
- fi
- done
- if [ -n "$found_eth_dev" ]
- then
- echo "DEVICE='$found_eth_dev'" >> /conf/param.conf
- return
- else
- # wait a bit
- sleep 1
- fi
- done
- done
+ for step in 1 2 3 4 5
+ do
+ for interface in $l_interfaces
+ do
+ ip link set $interface up
+ carrier=$(cat /sys/class/net/$interface/carrier \
+ 2>/dev/null)
+ # link detected
+
+ case "${carrier}" in
+ 1)
+ echo "Connected $interface found"
+ # inform initrd's init script :
+ found_eth_dev="$found_eth_dev $interface"
+ found_eth_dev="$(echo $found_eth_dev | sed -e "s/^[[:space:]]*//g")"
+ ;;
+ esac
+ done
+ if [ -n "$found_eth_dev" ]
+ then
+ echo "DEVICE='$found_eth_dev'" >> /conf/param.conf
+ return
+ else
+ # wait a bit
+ sleep 1
+ fi
+ done
+ done
}