f-25: dhcp: fill db with dhcp data

Signed-off-by: GnomeZworc <nicolas.boufidjeline@g3e.fr>

internal/dhcp/db.go

@@ -0,0 +1,19 @@
+package dhcp
+
+import (
+	"git.g3e.fr/syonad/two/pkg/db/kv"
+	"github.com/dgraph-io/badger/v4"
+)
+
+func StoreDHCPEntries(db *badger.DB, subnetName string, entries map[string]string) error {
+	for ip, mac := range entries {
+		if err := kv.AddInDB(db, "subnet/"+subnetName+"/dhcp/"+ip, mac); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func GetMACForIP(db *badger.DB, subnetName, ip string) (string, error) {
+	return kv.GetFromDB(db, "subnet/"+subnetName+"/dhcp/"+ip)
+}