exact

type Entry ¶

type Entry struct {
	// contains filtered or unexported fields
}

An Entry is an entry in an exact-match table. It maps a key to Actions. An entry is a part of a hash table collision list and an optional stale entry list.

func (e *Entry) String() string

type EntryDesc ¶

type EntryDesc []*fwdpb.PacketFieldBytes

EntryDesc describes a table entry as a set of pairs of packet-field-ids and packet-field-values.

type Table ¶

type Table struct {
	fwdobject.Base
	// contains filtered or unexported fields
}

A Table is a table that matches packets to entries using exact-match. Entries in the table are described by a keyDesc. Packets match an entry if the key made from the packet is equal to the key made from the entry. The table also has a set of actions which are used to process packets that do not match any entry in the table.

The forwarding infrastructure calls the AddEntry, RemoveEntry and Entries methods while holding a write lock on the context, and calls the Process function while holding a read lock on the context. The stale list monitor goroutine calls the Remove method while holding the write lock on the context. Since the stale list can be manipulated simultaneously by the monitor and packet processing goroutines, the table has a mutex to protect stale list operations.

func New(ctx *fwdcontext.Context, td *fwdpb.TableDesc) (*Table, error)

func (t *Table) AddEntry(ed *fwdpb.EntryDesc, ad []*fwdpb.ActionDesc) error

func (t *Table) Cleanup()

func (t *Table) Clear()

func (t *Table) Entries() []string

func (t *Table) Find(key tableutil.Key) *Entry

func (t *Table) Process(packet fwdpacket.Packet, _ fwdobject.Counters) (fwdaction.Actions, fwdaction.State)

func (t *Table) RemoveEntry(ed *fwdpb.EntryDesc) error

func (t *Table) String() string