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Set udp dontfrag by default

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世界 2022-09-06 00:54:57 +08:00
parent cb4fea0240
commit 0c975db0a6
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GPG key ID: CD109927C34A63C4
4 changed files with 13 additions and 3 deletions
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4
common/dialer/default.go
View file

@ -112,6 +112,10 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
if options.TCPFastOpen {
warnTFOOnUnsupportedPlatform.Check()
}
if !options.UDPFragment {
dialer.Control = control.Append(dialer.Control, control.DisableUDPFragment())
listener.Control = control.Append(listener.Control, control.DisableUDPFragment())
}
var bindUDPAddr string
udpDialer := dialer
var bindAddress netip.Addr

9
inbound/default_udp.go
View file

@ -10,6 +10,7 @@ import (
"github.com/sagernet/sing-dns"
"github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/buf"
"github.com/sagernet/sing/common/control"
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
@ -17,11 +18,15 @@ import (
func (a *myInboundAdapter) ListenUDP() (net.PacketConn, error) {
bindAddr := M.SocksaddrFrom(netip.Addr(a.listenOptions.Listen), a.listenOptions.ListenPort)
udpConn, err := net.ListenUDP(M.NetworkFromNetAddr(N.NetworkUDP, bindAddr.Addr), bindAddr.UDPAddr())
var lc net.ListenConfig
if !a.listenOptions.UDPFragment {
lc.Control = control.Append(lc.Control, control.DisableUDPFragment())
}
udpConn, err := lc.ListenPacket(a.ctx, M.NetworkFromNetAddr(N.NetworkUDP, bindAddr.Addr), bindAddr.String())
if err != nil {
return nil, err
}
a.udpConn = udpConn
a.udpConn = udpConn.(*net.UDPConn)
a.udpAddr = bindAddr
a.logger.Info("udp server started at ", udpConn.LocalAddr())
return udpConn, err

1
option/inbound.go
View file

@ -114,6 +114,7 @@ type ListenOptions struct {
Listen ListenAddress `json:"listen"`
ListenPort uint16 `json:"listen_port,omitempty"`
TCPFastOpen bool `json:"tcp_fast_open,omitempty"`
UDPFragment bool `json:"udp_fragment,omitempty"`
UDPTimeout int64 `json:"udp_timeout,omitempty"`
ProxyProtocol bool `json:"proxy_protocol,omitempty"`
Detour string `json:"detour,omitempty"`

2
option/outbound.go
View file

@ -108,12 +108,12 @@ type DialerOptions struct {
Detour string `json:"detour,omitempty"`
BindInterface string `json:"bind_interface,omitempty"`
BindAddress *ListenAddress `json:"bind_address,omitempty"`
BindAddress6 *ListenAddress `json:"bind_address6,omitempty"`
ProtectPath string `json:"protect_path,omitempty"`
RoutingMark int `json:"routing_mark,omitempty"`
ReuseAddr bool `json:"reuse_addr,omitempty"`
ConnectTimeout Duration `json:"connect_timeout,omitempty"`
TCPFastOpen bool `json:"tcp_fast_open,omitempty"`
UDPFragment bool `json:"udp_fragment,omitempty"`
DomainStrategy DomainStrategy `json:"domain_strategy,omitempty"`
FallbackDelay Duration `json:"fallback_delay,omitempty"`
}