Rename networking drivers for debian & redhat

Rename debian.sh to ifupdown.sh and redhat.sh to ifcfg.sh. This is done
to make things more clear in case we add more network drivers that do
apply to Debian and RedHat like a driver for NetworkManager.

snf-image-helper/common.sh.in

@@ -290,6 +290,22 @@ get_distro() {
     fi
 }
 
+get_networking_tool() {
+    local root_dir distro tool
+    root_dir=$1
+
+    distro=$(get_base_distro "$root_dir")
+    if [ "$distro" = debian ]; then
+        tool=ifupdown
+    elif [ "$distro" = redhat ]; then
+        tool=ifcfg
+    else
+        tool=$distro
+    fi
+
+    echo "@networkingdir@/$tool.sh"
+}
+
 get_partition_table() {
     local dev output
     dev="$1"

snf-image-helper/networking/Makefile.am

 networkingdir=$(libdir)/$(PACKAGE)/networking
 
-dist_networking_SCRIPTS = debian.sh redhat.sh freebsd.sh openbsd.sh netbsd.sh
+dist_networking_SCRIPTS = ifupdown.sh ifcfg.sh freebsd.sh openbsd.sh netbsd.sh
 
 edit = sed \
            -e 's|@sysconfdir[@]|$(sysconfdir)|g' \

snf-image-helper/tasks/50ConfigureNetwork.in

@@ -42,9 +42,9 @@ fi
 # Check if the image overwrites the task
 check_if_overwritten
 
-distro=$(get_base_distro "$SNF_IMAGE_TARGET")
+networking_tool=$(get_networking_tool "$SNF_IMAGE_TARGET")
 
-if [ ! -f "@networkingdir@/$distro.sh" ]; then
+if [ ! -f "$networking_tool" ]; then
     warn "Don't know how to configure the network for this OS"
     exit 0
 fi
@@ -52,7 +52,7 @@ fi
 export SNF_IMAGE_TARGET
 
 # Initialize the driver
-"@networkingdir@/$distro.sh" -i
+"$networking_tool" -i
 
 for index in $(seq 0 $((SNF_IMAGE_NIC_COUNT-1))); do
     dhcp=no
@@ -129,12 +129,12 @@ for index in $(seq 0 $((SNF_IMAGE_NIC_COUNT-1))); do
         fi
     fi
 
-    "@networkingdir@/$distro.sh" $ARGS
+    "$networking_tool" $ARGS
 
 done
 
 # Finalize the driver
-"@networkingdir@/$distro.sh" -f
+"$networking_tool" -f
 
 
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