if((int)basic_header.nextHeader()==2){// Verify and extract the GeoNetworking Secured Packet as specified in ETSI EN 302 636-4-1 V1.3.1 (2017-08) Clause 9.6.1 Composition of the Basic Header
unsignedintbasic_header_len=4;// FIXME How to retrive the BasicHeader length basic_header.get_descriptor()->raw->fieldlength / 8;