hans-2.4.0.0: IPv4 Network Stack

Safe Haskell	None
Language	Haskell98

Hans.Message.Ip4

Synopsis

Documentation

mkIP4PseudoHeader :: IP4 -> IP4 -> IP4Protocol -> MkPseudoHeader Source

source address | +--------+--------+--------+--------+ | destination address | +--------+--------+--------+--------+ | zero |protocol| length | +--------+--------+--------+--------+

newtype Ident Source

Constructors

Ident
Fields getIdent :: Word16

Instances

Enum Ident
Eq Ident
Integral Ident
Num Ident
Ord Ident
Real Ident
Show Ident
Serialize Ident

newtype IP4Protocol Source

Constructors

IP4Protocol
Fields getIP4Protocol :: Word8

Instances

Eq IP4Protocol
Num IP4Protocol
Ord IP4Protocol
Show IP4Protocol
Serialize IP4Protocol

data IP4Header Source

Constructors

IP4Header
Fields ip4Version :: !Word8 ip4TypeOfService :: !Word8 ip4Ident :: !Ident ip4DontFragment :: Bool ip4MoreFragments :: Bool ip4FragmentOffset :: !Word16 ip4TimeToLive :: !Word8 ip4Protocol :: !IP4Protocol ip4Checksum :: !Word16 ip4SourceAddr :: !IP4 ip4DestAddr :: !IP4 ip4Options :: [IP4Option]

Instances

Eq IP4Header
Show IP4Header

emptyIP4Header :: IP4Header Source

noMoreFragments :: IP4Header -> IP4Header Source

moreFragments :: IP4Header -> IP4Header Source

addOffset :: Word16 -> IP4Header -> IP4Header Source

setIdent :: Ident -> IP4Header -> IP4Header Source

ip4PacketSize :: IP4Header -> ByteString -> Int Source

Calculate the size of an IP4 packet

ip4HeaderSize :: IP4Header -> Int Source

Calculate the size of an IP4 header

splitPacket :: Int -> IP4Header -> ByteString -> [(IP4Header, ByteString)] Source

Fragment a single IP packet into one or more, given an MTU to fit into.

fragmentPacket :: Int64 -> IP4Header -> ByteString -> [(IP4Header, ByteString)] Source

Given a fragment size and a packet, fragment the packet into multiple smaller ones.

getIP4Packet :: Get (IP4Header, Int, Int) Source

Version| IHL |Type of Service| Total Length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Identification |Flags| Fragment Offset | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Time to Live | Protocol | Header Checksum | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Source Address | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Destination Address | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

parseIP4Packet :: ByteString -> Either String (IP4Header, Int, Int) Source

renderIP4Header :: IP4Header -> Int -> ByteString Source

putIP4Header :: IP4Header -> Int -> Put Source

renderIP4Packet :: IP4Header -> ByteString -> IO ByteString Source

The final step to render an IP header and its payload out as a bytestring.

renderOptions :: [IP4Option] -> (ByteString, Word8) Source

getOptions :: Int -> Get [IP4Option] Source

data IP4Option Source

Constructors

IP4Option
Fields ip4OptionCopied :: !Bool ip4OptionClass :: !Word8 ip4OptionNum :: !Word8 ip4OptionData :: ByteString

Instances

Eq IP4Option
Show IP4Option
Serialize IP4Option

ip4OptionSize :: IP4Option -> Int Source