josh/jrouter
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Send RI-Req, add comments

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This commit is contained in:
Josh Deprez 2024-04-01 14:44:51 +11:00
parent 7ebbb79e05
commit febea0b653
Signed by: josh
SSH key fingerprint: SHA256:zZji7w1Ilh2RuUpbQcqkLPrqmRwpiCSycbF2EfKm6Kw
2 changed files with 27 additions and 1 deletions
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22
aurp/transport.go
View file

@ -50,6 +50,8 @@ func parseTrHeader(p []byte) (TrHeader, []byte, error) {
}, p[4:], nil
}
// Transport tracks local and remote domain identifiers, connection IDs, and
// sequence numbers for use in a pair of one-way connections.
type Transport struct {
// LocalDI and RemoteDI are used for producing packets.
// When sending a packet, we use LocalDI as SourceDI and RemoteDI as
@ -141,6 +143,19 @@ func (tr *Transport) NewOpenRspPacket(envFlags RoutingFlag, rateOrErr int16, opt
}
}
// NewRIReqPacket returns a new RI-Req packet structure. By default it sets all
// SUI flags.
func (tr *Transport) NewRIReqPacket() *RIReqPacket {
return &RIReqPacket{
Header: Header{
TrHeader: tr.transaction(tr.LocalConnID),
CommandCode: CmdCodeRIReq,
Flags: RoutingFlagAllSUI,
},
}
}
// NewRIRspPacket returs a new RI-Rsp packet structure.
func (tr *Transport) NewRIRspPacket(last RoutingFlag, nets NetworkTuples) *RIRspPacket {
return &RIRspPacket{
Header: Header{
@ -152,6 +167,7 @@ func (tr *Transport) NewRIRspPacket(last RoutingFlag, nets NetworkTuples) *RIRsp
}
}
// NewRIAckPacket returns a new RI-Ack packet structure.
func (tr *Transport) NewRIAckPacket(connID, seq uint16, szi RoutingFlag) *RIAckPacket {
return &RIAckPacket{
Header: Header{
@ -162,6 +178,9 @@ func (tr *Transport) NewRIAckPacket(connID, seq uint16, szi RoutingFlag) *RIAckP
}
}
// NewZIRspPacket returns a new ZI-Rsp packet structure containing the given
// zone information. It automatically chooses between subcodes 1 or 2 depending
// on whether there is one network ID or more than one network ID.
func (tr *Transport) NewZIRspPacket(zones ZoneTuples) *ZIRspPacket {
nns := make(map[uint16]struct{})
for _, z := range zones {
@ -185,6 +204,7 @@ func (tr *Transport) NewZIRspPacket(zones ZoneTuples) *ZIRspPacket {
}
}
// NewRDPacket returns a new RD packet structure.
func (tr *Transport) NewRDPacket(errCode ErrorCode) *RDPacket {
return &RDPacket{
Header: Header{
@ -196,6 +216,7 @@ func (tr *Transport) NewRDPacket(errCode ErrorCode) *RDPacket {
}
}
// NewTicklePacket returns a new Tickle packet structure.
func (tr *Transport) NewTicklePacket() *TicklePacket {
return &TicklePacket{
Header: Header{
@ -206,6 +227,7 @@ func (tr *Transport) NewTicklePacket() *TicklePacket {
}
}
// NewTickleAckPacket returns a new Tickle-Ack packet.
func (tr *Transport) NewTickleAckPacket() *TickleAckPacket {
return &TickleAckPacket{
Header: Header{

6
peer.go
View file

@ -235,7 +235,11 @@ func (p *peer) handle(ctx context.Context) error {
log.Printf("Data receiver is connected!")
rstate = rsConnected
// TODO: Make other requests
// Send an RI-Req
if _, err := p.send(p.tr.NewRIReqPacket()); err != nil {
log.Printf("Couldn't send RI-Req packet: %v", err)
return err
}
case *aurp.RIReqPacket:
if sstate != ssConnected {