Split peer type into separate file
This commit is contained in:
parent
86cd7879b6
commit
b9ae3cc426
SSH key fingerprint:
SHA256:zZji7w1Ilh2RuUpbQcqkLPrqmRwpiCSycbF2EfKm6Kw
109
main.go
109
main.go
|
|
@ -1,7 +1,6 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"flag"
|
||||
"log"
|
||||
"net"
|
||||
|
|
@ -136,114 +135,6 @@ func main() {
|
|||
}
|
||||
}
|
||||
|
||||
type peer struct {
|
||||
tr *aurp.Transport
|
||||
conn *net.UDPConn
|
||||
raddr *net.UDPAddr
|
||||
recv chan aurp.Packet
|
||||
}
|
||||
|
||||
// send encodes and sends pkt to the remote host.
|
||||
func (p *peer) send(pkt aurp.Packet) (int, error) {
|
||||
var b bytes.Buffer
|
||||
if _, err := pkt.WriteTo(&b); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return p.conn.WriteToUDP(b.Bytes(), p.raddr)
|
||||
}
|
||||
|
||||
func (p *peer) handle() {
|
||||
// Write an Open-Req packet
|
||||
n, err := p.send(p.tr.NewOpenReqPacket(nil))
|
||||
if err != nil {
|
||||
log.Printf("Couldn't send Open-Req packet: %v", err)
|
||||
return
|
||||
}
|
||||
log.Printf("Sent Open-Req (len %d) to peer %v", n, p.raddr)
|
||||
|
||||
for pkt := range p.recv {
|
||||
switch pkt := pkt.(type) {
|
||||
case *aurp.AppleTalkPacket:
|
||||
// Probably something like:
|
||||
//
|
||||
// * parse the DDP header
|
||||
// * check that this is headed for our local network
|
||||
// * write the packet out in an EtherTalk frame
|
||||
//
|
||||
// or maybe if we were implementing a "central hub"
|
||||
//
|
||||
// * parse the DDP header
|
||||
// * see if we know the network
|
||||
// * forward to the peer with that network and lowest metric
|
||||
|
||||
case *aurp.OpenReqPacket:
|
||||
// The peer tells us their connection ID in Open-Req.
|
||||
p.tr.RemoteConnID = pkt.ConnectionID
|
||||
|
||||
// Formulate a response.
|
||||
var orsp *aurp.OpenRspPacket
|
||||
switch {
|
||||
case pkt.Version != 1:
|
||||
// Respond with Open-Rsp with unknown version error.
|
||||
orsp = p.tr.NewOpenRspPacket(0, aurp.ErrCodeInvalidVersion, nil)
|
||||
|
||||
case len(pkt.Options) > 0:
|
||||
// Options? OPTIONS? We don't accept no stinkin' _options_
|
||||
orsp = p.tr.NewOpenRspPacket(0, aurp.ErrCodeOptionNegotiation, nil)
|
||||
|
||||
default:
|
||||
// Accept it I guess.
|
||||
orsp = p.tr.NewOpenRspPacket(0, 1, nil)
|
||||
}
|
||||
|
||||
log.Printf("Responding with %T", orsp)
|
||||
|
||||
if _, err := p.send(orsp); err != nil {
|
||||
log.Printf("Couldn't send Open-Rsp: %v", err)
|
||||
}
|
||||
|
||||
case *aurp.OpenRspPacket:
|
||||
if pkt.RateOrErrCode < 0 {
|
||||
// It's an error code.
|
||||
log.Printf("Open-Rsp error code from peer %v: %d", p.raddr.IP, pkt.RateOrErrCode)
|
||||
// Close the connection
|
||||
}
|
||||
|
||||
// TODO: Make other requests
|
||||
|
||||
case *aurp.RIReqPacket:
|
||||
// TODO: Respond with RI-Rsp
|
||||
|
||||
case *aurp.RIRspPacket:
|
||||
// TODO: Repsond with RI-Ack
|
||||
// TODO: Integrate info into route table
|
||||
|
||||
case *aurp.RIAckPacket:
|
||||
// TODO: Continue sending next RI-Rsp (streamed)
|
||||
// TODO: If SZI flag is set, send ZI-Rsp (transaction)
|
||||
|
||||
case *aurp.RIUpdPacket:
|
||||
// TODO: Integrate info into route table
|
||||
|
||||
case *aurp.RDPacket:
|
||||
// TODO: Remove router from tables
|
||||
// TODO: Close connection
|
||||
|
||||
case *aurp.ZIReqPacket:
|
||||
// TODO: Respond with ZI-Rsp
|
||||
|
||||
case *aurp.ZIRspPacket:
|
||||
// TODO: Integrate info into zone table
|
||||
|
||||
case *aurp.TicklePacket:
|
||||
// TODO: Respond with TickleAck
|
||||
|
||||
case *aurp.TickleAckPacket:
|
||||
// TODO: Reset LHFT
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Hashable net.UDPAddr
|
||||
type udpAddr struct {
|
||||
ipv4 [4]byte
|
||||
|
|
|
|||
117
peer.go
Normal file
117
peer.go
Normal file
|
|
@ -0,0 +1,117 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"log"
|
||||
"net"
|
||||
|
||||
"gitea.drjosh.dev/josh/jrouter/aurp"
|
||||
)
|
||||
|
||||
type peer struct {
|
||||
tr *aurp.Transport
|
||||
conn *net.UDPConn
|
||||
raddr *net.UDPAddr
|
||||
recv chan aurp.Packet
|
||||
}
|
||||
|
||||
// send encodes and sends pkt to the remote host.
|
||||
func (p *peer) send(pkt aurp.Packet) (int, error) {
|
||||
var b bytes.Buffer
|
||||
if _, err := pkt.WriteTo(&b); err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return p.conn.WriteToUDP(b.Bytes(), p.raddr)
|
||||
}
|
||||
|
||||
func (p *peer) handle() {
|
||||
// Write an Open-Req packet
|
||||
n, err := p.send(p.tr.NewOpenReqPacket(nil))
|
||||
if err != nil {
|
||||
log.Printf("Couldn't send Open-Req packet: %v", err)
|
||||
return
|
||||
}
|
||||
log.Printf("Sent Open-Req (len %d) to peer %v", n, p.raddr)
|
||||
|
||||
for pkt := range p.recv {
|
||||
switch pkt := pkt.(type) {
|
||||
case *aurp.AppleTalkPacket:
|
||||
// Probably something like:
|
||||
//
|
||||
// * parse the DDP header
|
||||
// * check that this is headed for our local network
|
||||
// * write the packet out in an EtherTalk frame
|
||||
//
|
||||
// or maybe if we were implementing a "central hub"
|
||||
//
|
||||
// * parse the DDP header
|
||||
// * see if we know the network
|
||||
// * forward to the peer with that network and lowest metric
|
||||
|
||||
case *aurp.OpenReqPacket:
|
||||
// The peer tells us their connection ID in Open-Req.
|
||||
p.tr.RemoteConnID = pkt.ConnectionID
|
||||
|
||||
// Formulate a response.
|
||||
var orsp *aurp.OpenRspPacket
|
||||
switch {
|
||||
case pkt.Version != 1:
|
||||
// Respond with Open-Rsp with unknown version error.
|
||||
orsp = p.tr.NewOpenRspPacket(0, aurp.ErrCodeInvalidVersion, nil)
|
||||
|
||||
case len(pkt.Options) > 0:
|
||||
// Options? OPTIONS? We don't accept no stinkin' _options_
|
||||
orsp = p.tr.NewOpenRspPacket(0, aurp.ErrCodeOptionNegotiation, nil)
|
||||
|
||||
default:
|
||||
// Accept it I guess.
|
||||
orsp = p.tr.NewOpenRspPacket(0, 1, nil)
|
||||
}
|
||||
|
||||
log.Printf("Responding with %T", orsp)
|
||||
|
||||
if _, err := p.send(orsp); err != nil {
|
||||
log.Printf("Couldn't send Open-Rsp: %v", err)
|
||||
}
|
||||
|
||||
case *aurp.OpenRspPacket:
|
||||
if pkt.RateOrErrCode < 0 {
|
||||
// It's an error code.
|
||||
log.Printf("Open-Rsp error code from peer %v: %d", p.raddr.IP, pkt.RateOrErrCode)
|
||||
// Close the connection
|
||||
}
|
||||
|
||||
// TODO: Make other requests
|
||||
|
||||
case *aurp.RIReqPacket:
|
||||
// TODO: Respond with RI-Rsp
|
||||
|
||||
case *aurp.RIRspPacket:
|
||||
// TODO: Repsond with RI-Ack
|
||||
// TODO: Integrate info into route table
|
||||
|
||||
case *aurp.RIAckPacket:
|
||||
// TODO: Continue sending next RI-Rsp (streamed)
|
||||
// TODO: If SZI flag is set, send ZI-Rsp (transaction)
|
||||
|
||||
case *aurp.RIUpdPacket:
|
||||
// TODO: Integrate info into route table
|
||||
|
||||
case *aurp.RDPacket:
|
||||
// TODO: Remove router from tables
|
||||
// TODO: Close connection
|
||||
|
||||
case *aurp.ZIReqPacket:
|
||||
// TODO: Respond with ZI-Rsp
|
||||
|
||||
case *aurp.ZIRspPacket:
|
||||
// TODO: Integrate info into zone table
|
||||
|
||||
case *aurp.TicklePacket:
|
||||
// TODO: Respond with TickleAck
|
||||
|
||||
case *aurp.TickleAckPacket:
|
||||
// TODO: Reset LHFT
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue