AckNum creates a checker that checks the ack number.

DstAddr creates a checker that checks the destination address.

DstPort creates a checker that checks the destination port.

FragmentFlags creates a checker that checks the fragment flags field.

FragmentOffset creates a checker that checks the FragmentOffset field.

IPv4 checks the validity and properties of the given IPv4 packet.

IPv6 checks the validity and properties of the given IPv6 packet.

IPv6Fragment creates a checker that validates an IPv6 fragment.

Payload creates a checker that checks the payload.

PayloadLen creates a checker that checks the payload length.

Raw creates a checker that checks the bytes of payload.

SeqNum creates a checker that checks the sequence number.

SrcAddr creates a checker that checks the source address.

SrcPort creates a checker that checks the source port.

TCP creates a checker that checks that the transport protocol is TCP and potentially additional transport header fields.

TCPFlags creates a checker that checks the tcp flags.

TCPFlagsMatch creates a checker that checks that the tcp flags, masked by the given mask, match the supplied flags.

TCPNoSACKBlockChecker creates a checker that verifies that the segment does not contain any SACK blocks in the TCP options.

TCPSACKBlockChecker creates a checker that verifies that the segment does contain the specified SACK blocks in the TCP options.

TCPSynOptions creates a checker that checks the presence of TCP options in SYN segments.

TCPTimestampChecker creates a checker that validates that a TCP segment has a TCP Timestamp option if wantTS is true, it also compares the wantTSVal and wantTSEcr values with those in the TCP segment (if present).

TOS creates a checker that checks the TOS field.

UDP creates a checker that checks that the transport protocol is UDP and potentially additional transport header fields.

Window creates a checker that checks the tcp window.

NetworkChecker is a function to check a property of a network packet.

TransportChecker is a function to check a property of a transport packet.