F #83: Add route metric support (#208)

* F #83: Add route metric support

- BSD has no support for metrics:
  https://redmine.pfsense.org/issues/1521

Signed-off-by: Petr Ospalý <pospaly@opennebula.systems>
Signed-off-by: Petr Ospalý <pospaly@opennebula.io>

* F #83: Remove unsupported ipv6 metric

- distro's network scripts have no support for ipv6 metrics - no reason
  then to provide ipv6 specific METRIC6 variable
- fix whitespace

Signed-off-by: Petr Ospalý <pospaly@opennebula.io>

src/etc/one-context.d/loc-10-network##apk.one

@@ -172,10 +172,6 @@ EOT
 
     if [ -n "$GATEWAY6" ]; then
         echo "  gateway $GATEWAY6"
-
-        if [ -n "$METRIC" ]; then
-            echo "  metric $METRIC"
-        fi
     fi
 
     if [ -n "$IP6_ULA" ]; then

src/etc/one-context.d/loc-10-network##deb.one

@@ -114,7 +114,12 @@ EOT
 
     if [ -n "$GATEWAY" ]; then
         echo "  gateway $GATEWAY"
+
+        if [ -n "$METRIC" ]; then
+            echo "  metric $METRIC"
+        fi
     fi
+
     echo ""
 }
 
@@ -232,6 +237,7 @@ EOT
         MASK=$(get_mask)
         MTU=$(get_mtu)
         GATEWAY=$(get_gateway)
+        METRIC=$(get_iface_var "METRIC")
 
         IP6=$(get_iface_var "IP6")
         [[ -z $IP6 ]] && IP6=$(get_iface_var "IPV6")

src/etc/one-context.d/loc-10-network##network-scripts.one

@@ -108,9 +108,13 @@ EOT
 
     if [ -n "$GATEWAY" ]; then
         if [ "$CONFIG_PATH" = "/etc/sysconfig/network" ]; then
-            echo "default $GATEWAY - $DEV" >> /etc/sysconfig/network/ifroute-$DEV
+            echo "default $GATEWAY - $DEV" ${METRIC:+metric ${METRIC}} >> /etc/sysconfig/network/ifroute-$DEV
         else
             echo "GATEWAY=$GATEWAY"
+
+            if [ -n "$METRIC" ]; then
+                echo "METRIC=$METRIC"
+            fi
         fi
     fi
 
@@ -225,6 +229,7 @@ gen_network_configuration()
         MASK=$(get_mask)
         MTU=$(get_mtu)
         GATEWAY=$(get_gateway)
+        METRIC=$(get_iface_var "METRIC")
 
         IP6=$(get_iface_var "IP6")
         [[ -z $IP6 ]] && IP6=$(get_iface_var "IPV6")

src/etc/one-context.d/loc-10-network##networkd.one

@@ -169,10 +169,6 @@ EOT
         fi
     done
 
-    if [ -n "$GATEWAY" ]; then
-        echo "Gateway=$GATEWAY"
-    fi
-
     if [ -n "$DNS" ]; then
         for dns_server in $DNS; do
             echo "DNS=$dns_server"
@@ -185,6 +181,18 @@ EOT
         done
     fi
 
+    cat <<EOT
+[Route]
+EOT
+
+    if [ -n "$GATEWAY" ]; then
+        echo "Gateway=$GATEWAY"
+
+        if [ -n "$METRIC" ]; then
+            echo "Metric=$METRIC"
+        fi
+    fi
+
     echo ""
 }
 
@@ -219,10 +227,6 @@ EOT
 
     echo "IPv6AcceptRA=false"
 
-    if [ -n "$GATEWAY6" ]; then
-        echo "Gateway=$GATEWAY6"
-    fi
-
     if [ -n "$DNS" ]; then
         for dns_server in $DNS; do
             echo "DNS=$dns_server"
@@ -235,6 +239,14 @@ EOT
         done
     fi
 
+    cat <<EOT
+[Route]
+EOT
+
+    if [ -n "$GATEWAY6" ]; then
+        echo "Gateway=$GATEWAY6"
+    fi
+
     if [ -n "$IP6_ULA" ]; then
         cat <<EOT
 [Network]
@@ -286,6 +298,7 @@ gen_network_configuration()
         CIDR=$(mask2cidr "$MASK")
         MTU=$(get_mtu)
         GATEWAY=$(get_gateway)
+        METRIC=$(get_iface_var "METRIC")
         DNS=$(get_dns)
         SEARCH_DOMAIN=$(get_search_domain)
 

src/etc/one-context.d/loc-10-network-pci##one

@@ -56,6 +56,7 @@ for pci in $PCI_INTERFACES; do
     MASK=$(get_iface_var "MASK")
     MASK=${MASK:-255.255.255.0}
     GATEWAY=$(get_iface_var "GATEWAY")
+    METRIC=$(get_iface_var "METRIC")
     MTU=$(get_iface_var "MTU")
     MTU=${MTU:-1500}
     VLAN_ID=$(get_iface_var "VLAN_ID")
@@ -92,9 +93,9 @@ for pci in $PCI_INTERFACES; do
     if [ -n "$IP" ]; then
         ip address add $IP/$MASK dev $DEV
 
-	if [ -n "$GATEWAY" ]; then
-            ip route add default via $GATEWAY dev $DEV
-	fi
+    if [ -n "$GATEWAY" ]; then
+        ip route add default via $GATEWAY dev $DEV ${METRIC:+metric ${METRIC}}
+    fi
     fi
 
     # IPv6