network-legacy: Support for static Wicked configuration

man/dracut.cmdline.7.asc

@@ -580,7 +580,7 @@ module. Other network modules might support a slightly different set of
 options; refer to the documentation of the specific network module in use. For
 NetworkManager, see *nm-initrd-generator*(8).
 
-**ip=**__{dhcp|on|any|dhcp6|auto6|either6|link6|single-dhcp}__::
+**ip=**__{dhcp|on|any|dhcp6|auto6|either6|link6|single-dhcp|wicked-static}__::
     dhcp|on|any::: get ip from dhcp server from all interfaces. If netroot=dhcp,
     loop sequentially through all interfaces (eth0, eth1, ...) and use the first
     with a valid DHCP root-path.
@@ -599,6 +599,11 @@ NetworkManager, see *nm-initrd-generator*(8).
 
     link6::: bring up interface for IPv6 link-local addressing
 
+    wicked-static::: Apply static network configuration from the installed system.
+    Files from /etc/sysconfig/network/ are copied upon buildtime. Changes require
+    the initramfs to be rebuilt.
+    This is a SUSE specific feature.
+
 **ip=**__<interface>__:__{dhcp|on|any|dhcp6|auto6|link6}__[:[__<mtu>__][:__<macaddr>__]]::
     This parameter can be specified multiple times.
 +

modules.d/35network-legacy/ifup.sh

@@ -295,6 +295,59 @@ do_ipv6link() {
     return "$ret"
 }
 
+# Prepare static IP configuration based on wicked ifcfg
+do_wicked_static() {
+    unset BOOTPROTO IPADDR PREFIXLEN NETMASK GATEWAY NETCONFIG_DNS_STATIC_SERVERS NETCONFIG_DNS_STATIC_SEARCHLIST \
+          autoconf ip mask
+
+    if [ -e /etc/sysconfig/network/ifcfg-${netif} ] ; then
+        # Pull in existing interface configuration
+        . /etc/sysconfig/network/ifcfg-${netif}
+
+        if [ "$BOOTPROTO" = "static" ] ; then
+            autoconf=${BOOTPROTO}
+            if [ -n "$IPADDR" ] ; then
+                # respect netmask priority described in ifcfg(5)
+                local cidr=${IPADDR#*/}
+                if [ "$cidr" != "$IPADDR" ] ; then
+                    mask=${cidr}
+                    ip=${IPADDR%/*}
+                elif [ -n "$PREFIXLEN" ] ; then
+                    mask=${PREFIXLEN}
+                    ip=${IPADDR}
+                elif [ -n "$NETMASK" ] ; then
+                    mask=${NETMASK}
+                    ip=${IPADDR}
+                fi
+                [ -n "$GATEWAY" ] && gw=${GATEWAY}
+            fi
+            if [ -z "$IPADDR" ] ; then
+                warn "Blank interface configuration for $netif!"
+                return 1
+            fi
+        else
+                warn "Non-static interface configuration for $netif!"
+                return 1
+        fi
+    fi
+
+    if [ -e /etc/sysconfig/network/config ] ; then
+        # Pull in existing configuration for name resolution
+        . /etc/sysconfig/network/config
+
+        if [ -n "$NETCONFIG_DNS_STATIC_SERVERS" ] ; then
+            for ns in "$NETCONFIG_DNS_STATIC_SERVERS" ; do
+                echo "nameserver $ns" >> /etc/resolv.conf
+            done
+        fi
+        if [ -n "$NETCONFIG_DNS_STATIC_SEARCHLIST" ] ; then
+            echo "search $NETCONFIG_DNS_STATIC_SEARCHLIST" >> /etc/resolv.conf
+        fi
+    fi
+
+    do_static
+}
+
 # Handle static ip configuration
 do_static() {
     strglobin "$ip" '*:*:*' && load_ipv6
@@ -657,6 +710,9 @@ for p in $(getargs ip=); do
             link6)
                 do_ipv6link
                 ;;
+            wicked-static)
+                do_wicked_static
+                ;;
             *)
                 do_static
                 ;;
@@ -732,4 +788,4 @@ if [ -z "$NO_AUTO_DHCP" ] && [ ! -e "/tmp/net.${netif}.up" ]; then
     fi
 fi
 
-exit 0
+exit 0

modules.d/35network-legacy/module-setup.sh

@@ -58,6 +58,7 @@ install() {
 
     # SUSE specific files
     for f in \
+        /etc/sysconfig/network/config \
         /etc/sysconfig/network/ifcfg-* \
         /etc/sysconfig/network/ifroute-* \
         /etc/sysconfig/network/routes \

modules.d/35network-legacy/parse-ip-opts.sh

@@ -84,6 +84,7 @@ for p in $(getargs ip=); do
                 [ -n "$ip" ] \
                     && die "For argument 'ip=$p'\nSorry, setting client-ip does not make sense for '$autoopt'"
                 ;;
+            wicked-static) ;;
             *) die "For argument 'ip=$p'\nSorry, unknown value '$autoopt'" ;;
         esac
     done
@@ -112,7 +113,7 @@ for p in $(getargs ip=); do
         [ -n "$DHCPORSERVER" ] && [ -n "$srv" ] && continue
         # dhcp? (It's simpler to check for a set ip. Checks above ensure that if
         # ip is there, we're static
-        [ -z "$ip" ] && continue
+        [ -z "$ip" -o "$autoopt" = "wicked-static" ] && continue
         # Not good!
         die "Server-ip or dhcp for netboot needed, but current arguments say otherwise"
     fi