[patch] baselayout-rfc3442-udhcp.patch

baselayout-rfc3442-udhcp.patch (text/plain), 2.14 KB, created by Alexander Zubkov on 2006-03-21 23:06:57 UTC

--- rc-scripts-1.6.14.orig/lib/rcscripts/net.modules.d/helpers.d/udhcpc-iproute2	2006-03-21 17:40:09.528606500 +0300
+++ rc-scripts-1.6.14/lib/rcscripts/net.modules.d/helpers.d/udhcpc-iproute2	2006-03-21 18:31:19.872491000 +0300
@@ -62,14 +62,50 @@
 eval dhcp=\" \$\{dhcp_${interface}\} \"
 if [[ ${dhcp} != *' nogateway '* ]]; then
     # Configure our default route
-    x=$(ip route show | awk '{ if ($1 == "default") {print $3} }')
     for r in ${router}; do
 	# We can only have one default route!
-	if [[ -z ${x} ]]; then
-	    ip route add default via ${r} dev ${interface} 2>/dev/null && break
-	elif [[ ${x} != ${r} ]]; then
-	    ip route change default via ${r} dev ${interface} 2>/dev/null && break
-	fi
+        ip route replace default via ${r} dev ${interface} 2>/dev/null && break
+    done
+fi
+
+# Configure static routes
+if [[ "${cidrroute}" ]]; then
+    cidrroute="${cidrroute} "
+    # Work while cidrroute not empty
+    while true; do
+        # First go number of bits in mask
+        bits=${cidrroute%% *}
+        [[ -z ${bits} ]] && break
+        cidrroute=${cidrroute#* }
+        pref=""
+        if [[ ${bits} == 0 ]]; then
+            # We got 0/0 here
+            pref="default"
+        else
+            # Calc how many bytes we need to get from cidrroute
+            # And get them in prefix
+            bytes=$(( (${bits} - 1) / 8 + 1 ))
+            while [[ ${bytes} > 0 ]]; do
+                byte=${cidrroute%% *}
+                cidrroute=${cidrroute#* }
+                pref="${pref}.${byte}"
+                bytes=$(( ${bytes} - 1 ))
+            done
+            pref=${pref#.}
+            pref="${pref}/${bits}"
+        fi
+        # We have subnet prefix now and need to get gateway same way
+        bytes=4
+        gw=""
+        while [[ ${bytes} > 0 ]]; do
+            byte=${cidrroute%% *}
+            cidrroute=${cidrroute#* }
+            gw="${gw}.${byte}"
+            bytes=$(( ${bytes} - 1 ))
+        done
+        gw=${gw#.}
+        # And add the next route finally
+        ip route replace ${pref} via ${gw} dev ${interface} 2>/dev/null
     done
 fi