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Merge pull request #953 from apernet/wip-udphop-listenudpfunc

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feat: allow set ListenUDP impl for udphop conn
This commit is contained in:
Toby 2024-02-29 16:17:40 -08:00 committed by GitHub
commit 982be5498b
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GPG Key ID: B5690EEEBB952194
2 changed files with 24 additions and 15 deletions
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2
app/cmd/client.go
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@ -179,7 +179,7 @@ func (c *clientConfig) fillConnFactory(hyConfig *client.Config) error {
if hyConfig.ServerAddr.Network() == "udphop" { if hyConfig.ServerAddr.Network() == "udphop" {
hopAddr := hyConfig.ServerAddr.(*udphop.UDPHopAddr) hopAddr := hyConfig.ServerAddr.(*udphop.UDPHopAddr)
newFunc = func(addr net.Addr) (net.PacketConn, error) { newFunc = func(addr net.Addr) (net.PacketConn, error) {
return udphop.NewUDPHopPacketConn(hopAddr, c.Transport.UDP.HopInterval) return udphop.NewUDPHopPacketConn(hopAddr, c.Transport.UDP.HopInterval, nil)
} }
} else { } else {
newFunc = func(addr net.Addr) (net.PacketConn, error) { newFunc = func(addr net.Addr) (net.PacketConn, error) {

15
extras/transport/udphop/conn.go
View File

@ -20,6 +20,7 @@ type udpHopPacketConn struct {
Addr net.Addr Addr net.Addr
Addrs []net.Addr Addrs []net.Addr
HopInterval time.Duration HopInterval time.Duration
ListenUDPFunc ListenUDPFunc
connMutex sync.RWMutex connMutex sync.RWMutex
prevConn net.PacketConn prevConn net.PacketConn
@ -43,17 +44,24 @@ type udpPacket struct {
Err error Err error
} }
func NewUDPHopPacketConn(addr *UDPHopAddr, hopInterval time.Duration) (net.PacketConn, error) { type ListenUDPFunc func() (net.PacketConn, error)
func NewUDPHopPacketConn(addr *UDPHopAddr, hopInterval time.Duration, listenUDPFunc ListenUDPFunc) (net.PacketConn, error) {
if hopInterval == 0 { if hopInterval == 0 {
hopInterval = defaultHopInterval hopInterval = defaultHopInterval
} else if hopInterval < 5*time.Second { } else if hopInterval < 5*time.Second {
return nil, errors.New("hop interval must be at least 5 seconds") return nil, errors.New("hop interval must be at least 5 seconds")
} }
if listenUDPFunc == nil {
listenUDPFunc = func() (net.PacketConn, error) {
return net.ListenUDP("udp", nil)
}
}
addrs, err := addr.addrs() addrs, err := addr.addrs()
if err != nil { if err != nil {
return nil, err return nil, err
} }
curConn, err := net.ListenUDP("udp", nil) curConn, err := listenUDPFunc()
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -61,6 +69,7 @@ func NewUDPHopPacketConn(addr *UDPHopAddr, hopInterval time.Duration) (net.Packe
Addr: addr, Addr: addr,
Addrs: addrs, Addrs: addrs,
HopInterval: hopInterval, HopInterval: hopInterval,
ListenUDPFunc: listenUDPFunc,
prevConn: nil, prevConn: nil,
currentConn: curConn, currentConn: curConn,
addrIndex: rand.Intn(len(addrs)), addrIndex: rand.Intn(len(addrs)),
@ -121,7 +130,7 @@ func (u *udpHopPacketConn) hop() {
if u.closed { if u.closed {
return return
} }
newConn, err := net.ListenUDP("udp", nil) newConn, err := u.ListenUDPFunc()
if err != nil { if err != nil {
// Could be temporary, just skip this hop // Could be temporary, just skip this hop
return return