6 use crate::wire::ip::checksum;
274     pub fn checksum(&self) -> u16 {  in checksum()  method
343         checksum::combine(&[  in verify_checksum()
344             checksum::pseudo_header(src_addr, dst_addr, IpProtocol::Tcp, data.len() as u32),  in verify_checksum()
345             checksum::data(data),  in verify_checksum()
560         let checksum = {  in fill_checksum()  localVariable
562             !checksum::combine(&[  in fill_checksum()
563                 checksum::pseudo_header(src_addr, dst_addr, IpProtocol::Tcp, data.len() as u32),  in fill_checksum()
564                 checksum::data(data),  in fill_checksum()
567         self.set_checksum(checksum)  in fill_checksum()
1122         assert_eq!(packet.checksum(), 0x01b6);  in test_deconstruct()