network: add sanity check

Signed-off-by: AuxXxilium <info@auxxxilium.tech>

files/initrd/opt/arc/boot.sh

@@ -157,6 +157,8 @@ for ETH in ${ETHX}; do
   MAC="$(readConfigKey "mac.${ETH}" "${USER_CONFIG_FILE}")"
   [ -n "${MAC}" ] && NIC=$((${NIC} + 1)) && CMDLINE["mac${NIC}"]="${MAC}"
 done
+ETHN=$(ls /sys/class/net/ 2>/dev/null | grep eth | wc -l)
+[ ${NIC} -ne ${ETHN} ] && echo -e "\033[1;31mWarning: NIC mismatch (NICs: ${NIC} | Real: ${ETHN})\033[0m"
 CMDLINE['netif_num']="${NIC}"
 if [ "${MACSYS}" = "hardware" ]; then
   CMDLINE['skip_vender_mac_interfaces']="0,1,2,3,4,5,6,7"

files/initrd/opt/arc/include/network.sh

@@ -16,11 +16,8 @@ function getnet() {
   elif [ "${ARCPATCH}" = "false" ]; then
     ETHN=$(ls /sys/class/net/ 2>/dev/null | grep eth | wc -l)
     MACS=($(generateMacAddress "${MODEL}" ${ETHN}))
-    N=1
-    for ETH in ${ETHX}; do
-      MAC=$(echo "${MACS}" | cut -d ' ' -f ${N})
-      writeConfigKey "mac.${ETH}" "${MAC}" "${USER_CONFIG_FILE}"
-      N=$((${N} + 1))
+    for I in $(seq 1 ${ETHN}); do
+      writeConfigKey "mac.eth$((${I} - 1))" "${MACS[$((${I} - 1))]}" "${USER_CONFIG_FILE}"
     done
   elif [ "${ARCPATCH}" = "user" ]; then
     # User Mac

files/initrd/opt/arc/init.sh

@@ -100,10 +100,12 @@ for ETH in ${ETHX}; do
   fi
   NIC=$((${NIC} + 1))
 done
-echo
+ETHN=$(ls /sys/class/net/ 2>/dev/null | grep eth | wc -l)
+[ ${NIC} -ne ${ETHN} ] && echo "Warning: NIC mismatch (NICs: ${NIC} | Real: ${ETHN})"
 # Write NIC Amount to config
 writeConfigKey "device.nic" "${NIC}" "${USER_CONFIG_FILE}"
 # No network devices
+echo
 [ ${NIC} -le 0 ] && die "No NIC found! - Loader does not work without Network connection."
 
 # Get the VID/PID if we are in USB