Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 1234]

boost
asio
ip
RawSocketProtocol	Protocol for using raw sockets
whisper_library
BitSetCoder	Converts the message into bit-blocks and reassembles them to a message (used by TcpHeaderCovertChannel)
ChannelManager	The connecting part for the CovertChannel and the framework
CovertChannel	The interface used by all covert channels
GenericPacket	Represents a network packet
LengthCoder	Converts between messages and packet lengths (used by PacketLengthCovertChannel)
MorseCoder	Converts messages and timing intervals back and forth (used by TimingCovertChannel)
PacketLengthCovertChannel	A covert channel using packet lengths
PcapWrapper	Used to receive packets and send TCP packets under win32
PcapPacket	Packet structure as returned by pcap
TcpHeaderCovertChannel	A covert channel using tcp header fields
TimingCovertChannel	A covert channel using inter packet delays
EthernetHeader	Represents an ethernet header
IpHeaderv4	Represents an Ipv4 header
NetworkConnector	NetworkConnector can send Packets to the Network
SocketSender	Sends packets over a raw Socket
TcpPacket	Represents a tcp packet
TcpPacketGenerator	Simulates a HTTP conversation based on tcp
UdpPacket	Represents a udp packet
UdpPacketGenerator	Generates valid udp packets