Packet

Collaboration diagram for Packet:

Classes
class	ns3::Buffer
	automatically resized byte buffer More...
class	ns3::ByteTagIterator
	Iterator over the set of byte tags in a packet. More...
class	ns3::ByteTagList
	keep track of the byte tags stored in a packet. More...
struct	ns3::ByteTagListData
	Internal representation of the byte tags stored in a packet. More...
class	ns3::ByteTagListDataFreeList
	Container class for struct ByteTagListData. More...
class	ns3::Chunk
	abstract base class for ns3::Header and ns3::Trailer More...
struct	ns3::PacketMetadata::Data
	Data structure. More...
struct	ns3::Buffer::Data
	This data structure is variable-sized through its last member whose size is determined at allocation time and stored in the m_size field. More...
class	ns3::PacketMetadata::DataFreeList
	Class to hold all the metadata. More...
struct	ns3::PacketMetadata::ExtraItem
	ExtraItem structure. More...
class	ns3::Header
	Protocol header serialization and deserialization. More...
class	ns3::HigherLayerTxVectorTag
	This tag will be used to support higher layer control DataRate and TxPwr_Level for transmission. More...
class	ns3::PacketTagIterator::Item
	Identifies a packet tag within a packet. More...
class	ns3::ByteTagIterator::Item
	Identifies a byte tag and a set of bytes within a packet to which the tag applies. More...
struct	ns3::PacketMetadata::Item
	structure describing a packet metadata item More...
struct	ns3::ByteTagList::Iterator::Item
	An item specifies an individual tag within a byte buffer. More...
class	ns3::PacketMetadata::ItemIterator
	Iterator class for metadata items. More...
class	ns3::ByteTagList::Iterator
	An iterator for iterating through a byte tag list. More...
class	ns3::Buffer::Iterator
	iterator in a Buffer instance More...
struct	ns3::Buffer::LocalStaticDestructor
	Local static destructor structure. More...
class	ns3::NixVector
	Neighbor-index data structure for nix-vector routing. More...
class	ns3::Packet
	network packets More...
class	ns3::PacketMetadata
	Handle packet metadata about packet headers and trailers. More...
class	ns3::PacketTagIterator
	Iterator over the set of packet tags in a packet. More...
class	ns3::PacketTagList
	List of the packet tags stored in a packet. More...
struct	ns3::PacketMetadata::SmallItem
	SmallItem structure. More...
class	ns3::Tag
	tag a set of bytes in a packet More...
class	ns3::TagBuffer
	read and write tag data More...
struct	ns3::PacketTagList::TagData
	Tree node for sharing serialized tags. More...
class	ns3::Trailer
	Protocol trailer serialization and deserialization. More...
struct	anonymous_namespace{buffer.cc}::Zeroes
	Zero-filled buffer. More...

Enumerations
enum	{ ns3::PacketMetadata::Item::PAYLOAD, ns3::PacketMetadata::Item::HEADER, ns3::PacketMetadata::Item::TRAILER }
enum	ns3::PacketTagList::TagData::TagData_e { ns3::PacketTagList::TagData::MAX_SIZE = 20 }
	Packet Tag maximum size. More...

Variables
ns3::ByteTagListDataFreeList	ns3::g_freeList
	Container for struct ByteTagListData. More...
static struct anonymous_namespace{buffer.cc}::Zeroes	anonymous_namespace{buffer.cc}::g_zeroes
	Zero-filled buffer. More...

Detailed Description

Enumeration Type Documentation

anonymous enum

Enumerator
PAYLOAD
HEADER
TRAILER

Definition at line 87 of file packet-metadata.h.

enum ns3::PacketTagList::TagData::TagData_e

Packet Tag maximum size.

The maximum size (in bytes) of a Tag is stored in this constant.

Internal:

Ideally, TagData would be 32 bytes in size, so they require no padding on 64-bit architectures. (The architecture affects the size because of the next pointer.) This would leave 18 bytes for data. However, ns3:Ipv6PacketInfoTag needs 19 bytes! The current implementation allows 20 bytes, which gives TagData a size of 30 bytes on 32-byte machines (which gets padded with 2 bytes), and 34 bytes on 64-bit machines, which gets padded to 40 bytes.

Enumerator
MAX_SIZE	Size of serialization buffer data.

Definition at line 159 of file packet-tag-list.h.

Variable Documentation

ns3::ByteTagListDataFreeList ns3::g_freeList

static

Container for struct ByteTagListData.

Referenced by ns3::ByteTagList::Allocate(), and ns3::ByteTagList::Deallocate().

struct anonymous_namespace{buffer.cc}::Zeroes anonymous_namespace{buffer.cc}::g_zeroes

static

Zero-filled buffer.

Referenced by ns3::Buffer::CopyData().