v0.1.0

ADDED:
* Explicit subnet ordering option for VLSM

netsplit/funcs_vlsmsplitter.go

@@ -2,7 +2,7 @@ package netsplit
 
 import (
 	"net/netip"
-	"sort"
+	`sort`
 
 	"go4.org/netipx"
 )
@@ -42,17 +42,19 @@ func (v *VLSMSplitter) Split() (nets []*netip.Prefix, remaining *netipx.IPSet, e
 		return
 	}
 
-	sort.SliceStable(
-		v.PrefixLengths,
-		func(i, j int) (isBefore bool) { // We use a reverse sorting by default so we get larger prefixes at the beginning.
-			if v.Ascending {
-				isBefore = v.PrefixLengths[i] > v.PrefixLengths[j]
-			} else {
-				isBefore = v.PrefixLengths[i] < v.PrefixLengths[j]
-			}
-			return
-		},
-	)
+	if !v.Explicit {
+		sort.SliceStable(
+			v.PrefixLengths,
+			func(i, j int) (isBefore bool) { // We use a reverse sorting by default so we get larger prefixes at the beginning.
+				if v.Ascending {
+					isBefore = v.PrefixLengths[i] > v.PrefixLengths[j]
+				} else {
+					isBefore = v.PrefixLengths[i] < v.PrefixLengths[j]
+				}
+				return
+			},
+		)
+	}
 
 	pfxLen, _ = v.network.Mask.Size()
 	pfxLen8 = uint8(pfxLen)