wsl code edit

tcpip/stack/route.go

@@ -1,113 +1,113 @@
-package stack
-
-import (
-	"netstack/sleep"
-	"netstack/tcpip"
-	"netstack/tcpip/buffer"
-)
-
-// 贯穿整个协议栈的路由，也就是在链路层和网络层都可以路由
-// 如果目标地址是链路层地址，那么在链路层路由，
-// 如果目标地址是网络层地址，那么在网络层路由。
-type Route struct {
-	// 远端网络层地址 ipv4 or ipv6 地址
-	RemoteAddress tcpip.Address
-	// 远端网卡MAC地址
-	RemoteLinkAddress tcpip.LinkAddress
-
-	// 本地网络层地址 ipv4 or ipv6 地址
-	LocalAddress tcpip.Address
-	// 本地网卡MAC地址
-	LocalLinkAddress tcpip.LinkAddress
-
-	// 下一跳网络层地址
-	NextHop tcpip.Address
-
-	// 网络层协议号
-	NetProto tcpip.NetworkProtocolNumber
-
-	// 相关的网络终端
-	ref *referencedNetworkEndpoint
-}
-
-// 根据参数新建一个路由，并关联一个网络层端
-func makeRoute(netProto tcpip.NetworkProtocolNumber, localAddr, remoteAddr tcpip.Address,
-	localLinkAddr tcpip.LinkAddress, ref *referencedNetworkEndpoint) Route {
-	return Route{
-		NetProto:         netProto,
-		LocalAddress:     localAddr,
-		LocalLinkAddress: localLinkAddr,
-		RemoteAddress:    remoteAddr,
-		ref:              ref,
-	}
-}
-
-// NICID returns the id of the NIC from which this route originates.
-func (r *Route) NICID() tcpip.NICID {
-	return r.ref.ep.NICID()
-}
-
-// MaxHeaderLength forwards the call to the network endpoint's implementation.
-func (r *Route) MaxHeaderLength() uint16 {
-	return r.ref.ep.MaxHeaderLength()
-}
-
-// Stats returns a mutable copy of current stats.
-func (r *Route) Stats() tcpip.Stats {
-	return r.ref.nic.stack.Stats()
-}
-
-// Capabilities returns the link-layer capabilities of the route.
-func (r *Route) Capabilities() LinkEndpointCapabilities {
-	return r.ref.ep.Capabilities()
-}
-
-// RemoveWaker removes a waker that has been added in Resolve().
-func (r *Route) RemoveWaker(waker *sleep.Waker) {
-	nextAddr := r.NextHop
-	if nextAddr == "" {
-		nextAddr = r.RemoteAddress
-	}
-	r.ref.linkCache.RemoveWaker(r.ref.nic.ID(), nextAddr, waker)
-}
-
-// IsResolutionRequired returns true if Resolve() must be called to resolve
-// the link address before the this route can be written to.
-func (r *Route) IsResolutionRequired() bool {
-	return r.ref.linkCache != nil && r.RemoteLinkAddress == ""
-}
-
-// WritePacket writes the packet through the given route.
-func (r *Route) WritePacket(hdr buffer.Prependable, payload buffer.VectorisedView,
-	protocol tcpip.TransportProtocolNumber, ttl uint8) *tcpip.Error {
-	err := r.ref.ep.WritePacket(r, hdr, payload, protocol, ttl)
-	if err == tcpip.ErrNoRoute {
-		r.Stats().IP.OutgoingPacketErrors.Increment()
-	}
-	return err
-}
-
-// DefaultTTL returns the default TTL of the underlying network endpoint.
-func (r *Route) DefaultTTL() uint8 {
-	return r.ref.ep.DefaultTTL()
-}
-
-// MTU returns the MTU of the underlying network endpoint.
-func (r *Route) MTU() uint32 {
-	return r.ref.ep.MTU()
-}
-
-// Release frees all resources associated with the route.
-func (r *Route) Release() {
-	if r.ref != nil {
-		r.ref.decRef()
-		r.ref = nil
-	}
-}
-
-// Clone Clone a route such that the original one can be released and the new
-// one will remain valid.
-func (r *Route) Clone() Route {
-	r.ref.incRef()
-	return *r
-}
+package stack
+
+import (
+	"netstack/sleep"
+	"netstack/tcpip"
+	"netstack/tcpip/buffer"
+)
+
+// 贯穿整个协议栈的路由，也就是在链路层和网络层都可以路由
+// 如果目标地址是链路层地址，那么在链路层路由，
+// 如果目标地址是网络层地址，那么在网络层路由。
+type Route struct {
+	// 远端网络层地址 ipv4 or ipv6 地址
+	RemoteAddress tcpip.Address
+	// 远端网卡MAC地址
+	RemoteLinkAddress tcpip.LinkAddress
+
+	// 本地网络层地址 ipv4 or ipv6 地址
+	LocalAddress tcpip.Address
+	// 本地网卡MAC地址
+	LocalLinkAddress tcpip.LinkAddress
+
+	// 下一跳网络层地址
+	NextHop tcpip.Address
+
+	// 网络层协议号
+	NetProto tcpip.NetworkProtocolNumber
+
+	// 相关的网络终端
+	ref *referencedNetworkEndpoint
+}
+
+// 根据参数新建一个路由，并关联一个网络层端
+func makeRoute(netProto tcpip.NetworkProtocolNumber, localAddr, remoteAddr tcpip.Address,
+	localLinkAddr tcpip.LinkAddress, ref *referencedNetworkEndpoint) Route {
+	return Route{
+		NetProto:         netProto,
+		LocalAddress:     localAddr,
+		LocalLinkAddress: localLinkAddr,
+		RemoteAddress:    remoteAddr,
+		ref:              ref,
+	}
+}
+
+// NICID returns the id of the NIC from which this route originates.
+func (r *Route) NICID() tcpip.NICID {
+	return r.ref.ep.NICID()
+}
+
+// MaxHeaderLength forwards the call to the network endpoint's implementation.
+func (r *Route) MaxHeaderLength() uint16 {
+	return r.ref.ep.MaxHeaderLength()
+}
+
+// Stats returns a mutable copy of current stats.
+func (r *Route) Stats() tcpip.Stats {
+	return r.ref.nic.stack.Stats()
+}
+
+// Capabilities returns the link-layer capabilities of the route.
+func (r *Route) Capabilities() LinkEndpointCapabilities {
+	return r.ref.ep.Capabilities()
+}
+
+// RemoveWaker removes a waker that has been added in Resolve().
+func (r *Route) RemoveWaker(waker *sleep.Waker) {
+	nextAddr := r.NextHop
+	if nextAddr == "" {
+		nextAddr = r.RemoteAddress
+	}
+	r.ref.linkCache.RemoveWaker(r.ref.nic.ID(), nextAddr, waker)
+}
+
+// IsResolutionRequired returns true if Resolve() must be called to resolve
+// the link address before the this route can be written to.
+func (r *Route) IsResolutionRequired() bool {
+	return r.ref.linkCache != nil && r.RemoteLinkAddress == ""
+}
+
+// WritePacket writes the packet through the given route.
+func (r *Route) WritePacket(hdr buffer.Prependable, payload buffer.VectorisedView,
+	protocol tcpip.TransportProtocolNumber, ttl uint8) *tcpip.Error {
+	err := r.ref.ep.WritePacket(r, hdr, payload, protocol, ttl)
+	if err == tcpip.ErrNoRoute {
+		r.Stats().IP.OutgoingPacketErrors.Increment()
+	}
+	return err
+}
+
+// DefaultTTL returns the default TTL of the underlying network endpoint.
+func (r *Route) DefaultTTL() uint8 {
+	return r.ref.ep.DefaultTTL()
+}
+
+// MTU returns the MTU of the underlying network endpoint.
+func (r *Route) MTU() uint32 {
+	return r.ref.ep.MTU()
+}
+
+// Release frees all resources associated with the route.
+func (r *Route) Release() {
+	if r.ref != nil {
+		r.ref.decRef()
+		r.ref = nil
+	}
+}
+
+// Clone Clone a route such that the original one can be released and the new
+// one will remain valid.
+func (r *Route) Clone() Route {
+	r.ref.incRef()
+	return *r
+}