System.Linux.RTNetlink.Packet

Low-level headers

data NLMsgHdr

ADT corresponding to struct nlmsghdr from linux/netlink.h.

Constructors

NLMsgHdr

Fields

• nlMsgLength :: Word32

  Total message length (nlmsg_len).

• nlMsgType :: Word16

  Message type (nlmsg_type).

• nlMsgFlags :: Word16

  Top-level flags (nlmsg_flags).

• nlMsgSeqNum :: Word32

  Sequence number (nlmsg_seq).

• nlMsgPid :: Word32

  Destination address (nlmsg_pid).

Instances

Eq NLMsgHdr

Methods

(==) :: NLMsgHdr -> NLMsgHdr -> Bool

(/=) :: NLMsgHdr -> NLMsgHdr -> Bool

Show NLMsgHdr

Methods

showsPrec :: Int -> NLMsgHdr -> ShowS

show :: NLMsgHdr -> String

showList :: [NLMsgHdr] -> ShowS

Serialize NLMsgHdr

Methods

put :: Putter NLMsgHdr

get :: Get NLMsgHdr

Sized NLMsgHdr

Methods

size :: Integral i => NLMsgHdr -> i

sizeAligned :: Integral a => a -> NLMsgHdr -> a

nlMsgHdrIsError :: ByteString -> Bool

Return True iff the message is an error, assuming the provided ByteString is headed by an NLMsgHdr.

splitMessages :: ByteString -> [ByteString]

Split a ByteString into multiple messages using their NLMsgHdrs.

Attributes

data Attribute

ADT representing a possibly nested netlink attribute.

Constructors

Attribute AttributeType ByteString

Simple attribute.

AttributeNest AttributeType [Attribute]

Nested attribute.

Instances

Eq Attribute

Methods

(==) :: Attribute -> Attribute -> Bool

(/=) :: Attribute -> Attribute -> Bool

Show Attribute

Methods

showsPrec :: Int -> Attribute -> ShowS

show :: Attribute -> String

showList :: [Attribute] -> ShowS

Serialize Attribute

Methods

put :: Putter Attribute

get :: Get Attribute

Sized Attribute

Methods

size :: Integral i => Attribute -> i

sizeAligned :: Integral a => a -> Attribute -> a

newtype AttributeList

A collection of netlink attributes.

Constructors

AttributeList [Attribute]

Instances

Eq AttributeList

Methods

(==) :: AttributeList -> AttributeList -> Bool

(/=) :: AttributeList -> AttributeList -> Bool

Show AttributeList

Methods

showsPrec :: Int -> AttributeList -> ShowS

show :: AttributeList -> String

showList :: [AttributeList] -> ShowS

Monoid AttributeList

Methods

mempty :: AttributeList

mappend :: AttributeList -> AttributeList -> AttributeList

mconcat :: [AttributeList] -> AttributeList

Serialize AttributeList

Methods

put :: Putter AttributeList

get :: Get AttributeList

Sized AttributeList

Methods

size :: Integral i => AttributeList -> i

sizeAligned :: Integral a => a -> AttributeList -> a

type AttributeType = Word16

Type identifier for an Attribute.

attributeType :: Attribute -> AttributeType

Get the type of an Attribute.

attributeData :: Attribute -> Maybe ByteString

Get the data from a simple Attribute.

findAttribute :: [AttributeType] -> AttributeList -> Maybe Attribute

Search for an Attribute in a possibly nested list using the AttributeType to look for at each level.

cStringAttr :: AttributeType -> ByteString -> Attribute

Construct an Attribute with a null-byte-terminated string as data.

word32Attr :: AttributeType -> Word32 -> Attribute

Construct an Attribute with a 32-bit word as data.

word16Attr :: AttributeType -> Word16 -> Attribute

Construct an Attribute with a 16-bit word as data.

Sized data

class Sized s where

Typeclass for data with a defined size. This lets us get sizes to use for constructing headers.

Minimal complete definition

size

Methods

size :: Integral i => s -> i

Size of data.

sizeAligned :: Integral a => a -> s -> a

Size of data with alignment padding added.

Instances

Sized ()

Methods

size :: Integral i => () -> i

sizeAligned :: Integral a => a -> () -> a

Sized ByteString

Methods

size :: Integral i => ByteString -> i

sizeAligned :: Integral a => a -> ByteString -> a

Sized AttributeList

Methods

size :: Integral i => AttributeList -> i

sizeAligned :: Integral a => a -> AttributeList -> a

Sized Attribute

Methods

size :: Integral i => Attribute -> i

sizeAligned :: Integral a => a -> Attribute -> a

Sized NLMsgHdr

Methods

size :: Integral i => NLMsgHdr -> i

sizeAligned :: Integral a => a -> NLMsgHdr -> a

Sized NLMsgErr

Methods

size :: Integral i => NLMsgErr -> i

sizeAligned :: Integral a => a -> NLMsgErr -> a

Sized IfAddrMsg

Methods

size :: Integral i => IfAddrMsg -> i

sizeAligned :: Integral a => a -> IfAddrMsg -> a

Sized IfInfoMsg

Methods

size :: Integral i => IfInfoMsg -> i

sizeAligned :: Integral a => a -> IfInfoMsg -> a

Sized header => Sized (NLMessage header)

Methods

size :: Integral i => NLMessage header -> i

sizeAligned :: Integral a => a -> NLMessage header -> a

putAligned :: Integral a => a -> Putter ByteString

Pad a ByteString to a given alignment.