diff options
author | gVisor bot <gvisor-bot@google.com> | 2019-11-07 03:45:25 +0000 |
---|---|---|
committer | gVisor bot <gvisor-bot@google.com> | 2019-11-07 03:45:25 +0000 |
commit | 57af32e2181c4e4197e67f373608e3d0fc626da9 (patch) | |
tree | 1e7809fc063d4c10c95a4d4686e057daa6cb3eee /pkg/tcpip | |
parent | 240b9f2db7cbbde6b89020a2b4dbb196109e5569 (diff) | |
parent | 0c424ea73198866066ddc5e7047a3a357d313f46 (diff) |
Merge release-20190806.1-379-g0c424ea (automated)
Diffstat (limited to 'pkg/tcpip')
-rw-r--r-- | pkg/tcpip/network/arp/arp.go | 12 | ||||
-rw-r--r-- | pkg/tcpip/network/ipv4/ipv4.go | 8 | ||||
-rw-r--r-- | pkg/tcpip/network/ipv6/icmp.go | 8 | ||||
-rw-r--r-- | pkg/tcpip/network/ipv6/ipv6.go | 8 | ||||
-rwxr-xr-x | pkg/tcpip/stack/ndp.go | 8 | ||||
-rw-r--r-- | pkg/tcpip/stack/registration.go | 12 | ||||
-rw-r--r-- | pkg/tcpip/stack/stack.go | 30 | ||||
-rw-r--r-- | pkg/tcpip/transport/icmp/endpoint.go | 26 | ||||
-rwxr-xr-x | pkg/tcpip/transport/packet/endpoint.go | 6 | ||||
-rw-r--r-- | pkg/tcpip/transport/tcp/endpoint.go | 18 | ||||
-rw-r--r-- | pkg/tcpip/transport/udp/endpoint.go | 50 |
11 files changed, 93 insertions, 93 deletions
diff --git a/pkg/tcpip/network/arp/arp.go b/pkg/tcpip/network/arp/arp.go index 4161ebf87..0ee509ebe 100644 --- a/pkg/tcpip/network/arp/arp.go +++ b/pkg/tcpip/network/arp/arp.go @@ -42,7 +42,7 @@ const ( // endpoint implements stack.NetworkEndpoint. type endpoint struct { - nicid tcpip.NICID + nicID tcpip.NICID linkEP stack.LinkEndpoint linkAddrCache stack.LinkAddressCache } @@ -58,7 +58,7 @@ func (e *endpoint) MTU() uint32 { } func (e *endpoint) NICID() tcpip.NICID { - return e.nicid + return e.nicID } func (e *endpoint) Capabilities() stack.LinkEndpointCapabilities { @@ -102,7 +102,7 @@ func (e *endpoint) HandlePacket(r *stack.Route, pkt tcpip.PacketBuffer) { switch h.Op() { case header.ARPRequest: localAddr := tcpip.Address(h.ProtocolAddressTarget()) - if e.linkAddrCache.CheckLocalAddress(e.nicid, header.IPv4ProtocolNumber, localAddr) == 0 { + if e.linkAddrCache.CheckLocalAddress(e.nicID, header.IPv4ProtocolNumber, localAddr) == 0 { return // we have no useful answer, ignore the request } hdr := buffer.NewPrependable(int(e.linkEP.MaxHeaderLength()) + header.ARPSize) @@ -118,7 +118,7 @@ func (e *endpoint) HandlePacket(r *stack.Route, pkt tcpip.PacketBuffer) { case header.ARPReply: addr := tcpip.Address(h.ProtocolAddressSender()) linkAddr := tcpip.LinkAddress(h.HardwareAddressSender()) - e.linkAddrCache.AddLinkAddress(e.nicid, addr, linkAddr) + e.linkAddrCache.AddLinkAddress(e.nicID, addr, linkAddr) } } @@ -135,12 +135,12 @@ func (*protocol) ParseAddresses(v buffer.View) (src, dst tcpip.Address) { return tcpip.Address(h.ProtocolAddressSender()), ProtocolAddress } -func (p *protocol) NewEndpoint(nicid tcpip.NICID, addrWithPrefix tcpip.AddressWithPrefix, linkAddrCache stack.LinkAddressCache, dispatcher stack.TransportDispatcher, sender stack.LinkEndpoint) (stack.NetworkEndpoint, *tcpip.Error) { +func (p *protocol) NewEndpoint(nicID tcpip.NICID, addrWithPrefix tcpip.AddressWithPrefix, linkAddrCache stack.LinkAddressCache, dispatcher stack.TransportDispatcher, sender stack.LinkEndpoint) (stack.NetworkEndpoint, *tcpip.Error) { if addrWithPrefix.Address != ProtocolAddress { return nil, tcpip.ErrBadLocalAddress } return &endpoint{ - nicid: nicid, + nicID: nicID, linkEP: sender, linkAddrCache: linkAddrCache, }, nil diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go index 26f1402ed..ac16c8add 100644 --- a/pkg/tcpip/network/ipv4/ipv4.go +++ b/pkg/tcpip/network/ipv4/ipv4.go @@ -47,7 +47,7 @@ const ( ) type endpoint struct { - nicid tcpip.NICID + nicID tcpip.NICID id stack.NetworkEndpointID prefixLen int linkEP stack.LinkEndpoint @@ -57,9 +57,9 @@ type endpoint struct { } // NewEndpoint creates a new ipv4 endpoint. -func (p *protocol) NewEndpoint(nicid tcpip.NICID, addrWithPrefix tcpip.AddressWithPrefix, linkAddrCache stack.LinkAddressCache, dispatcher stack.TransportDispatcher, linkEP stack.LinkEndpoint) (stack.NetworkEndpoint, *tcpip.Error) { +func (p *protocol) NewEndpoint(nicID tcpip.NICID, addrWithPrefix tcpip.AddressWithPrefix, linkAddrCache stack.LinkAddressCache, dispatcher stack.TransportDispatcher, linkEP stack.LinkEndpoint) (stack.NetworkEndpoint, *tcpip.Error) { e := &endpoint{ - nicid: nicid, + nicID: nicID, id: stack.NetworkEndpointID{LocalAddress: addrWithPrefix.Address}, prefixLen: addrWithPrefix.PrefixLen, linkEP: linkEP, @@ -89,7 +89,7 @@ func (e *endpoint) Capabilities() stack.LinkEndpointCapabilities { // NICID returns the ID of the NIC this endpoint belongs to. func (e *endpoint) NICID() tcpip.NICID { - return e.nicid + return e.nicID } // ID returns the ipv4 endpoint ID. diff --git a/pkg/tcpip/network/ipv6/icmp.go b/pkg/tcpip/network/ipv6/icmp.go index 58f8e80df..6629951c6 100644 --- a/pkg/tcpip/network/ipv6/icmp.go +++ b/pkg/tcpip/network/ipv6/icmp.go @@ -180,7 +180,7 @@ func (e *endpoint) handleICMP(r *stack.Route, netHeader buffer.View, pkt tcpip.P // rxNICID so the packet is processed as defined in RFC 4861, // as per RFC 4862 section 5.4.3. - if e.linkAddrCache.CheckLocalAddress(e.nicid, ProtocolNumber, targetAddr) == 0 { + if e.linkAddrCache.CheckLocalAddress(e.nicID, ProtocolNumber, targetAddr) == 0 { // We don't have a useful answer; the best we can do is ignore the request. return } @@ -218,7 +218,7 @@ func (e *endpoint) handleICMP(r *stack.Route, netHeader buffer.View, pkt tcpip.P // // Furthermore, the entirety of NDP handling here seems to be // contradicted by RFC 4861. - e.linkAddrCache.AddLinkAddress(e.nicid, r.RemoteAddress, r.RemoteLinkAddress) + e.linkAddrCache.AddLinkAddress(e.nicID, r.RemoteAddress, r.RemoteLinkAddress) // RFC 4861 Neighbor Discovery for IP version 6 (IPv6) // @@ -274,9 +274,9 @@ func (e *endpoint) handleICMP(r *stack.Route, netHeader buffer.View, pkt tcpip.P // inform the netstack integration that a duplicate address was // detected outside of DAD. - e.linkAddrCache.AddLinkAddress(e.nicid, targetAddr, r.RemoteLinkAddress) + e.linkAddrCache.AddLinkAddress(e.nicID, targetAddr, r.RemoteLinkAddress) if targetAddr != r.RemoteAddress { - e.linkAddrCache.AddLinkAddress(e.nicid, r.RemoteAddress, r.RemoteLinkAddress) + e.linkAddrCache.AddLinkAddress(e.nicID, r.RemoteAddress, r.RemoteLinkAddress) } case header.ICMPv6EchoRequest: diff --git a/pkg/tcpip/network/ipv6/ipv6.go b/pkg/tcpip/network/ipv6/ipv6.go index 805d1739c..4cee848a1 100644 --- a/pkg/tcpip/network/ipv6/ipv6.go +++ b/pkg/tcpip/network/ipv6/ipv6.go @@ -43,7 +43,7 @@ const ( ) type endpoint struct { - nicid tcpip.NICID + nicID tcpip.NICID id stack.NetworkEndpointID prefixLen int linkEP stack.LinkEndpoint @@ -65,7 +65,7 @@ func (e *endpoint) MTU() uint32 { // NICID returns the ID of the NIC this endpoint belongs to. func (e *endpoint) NICID() tcpip.NICID { - return e.nicid + return e.nicID } // ID returns the ipv6 endpoint ID. @@ -218,9 +218,9 @@ func (*protocol) ParseAddresses(v buffer.View) (src, dst tcpip.Address) { } // NewEndpoint creates a new ipv6 endpoint. -func (p *protocol) NewEndpoint(nicid tcpip.NICID, addrWithPrefix tcpip.AddressWithPrefix, linkAddrCache stack.LinkAddressCache, dispatcher stack.TransportDispatcher, linkEP stack.LinkEndpoint) (stack.NetworkEndpoint, *tcpip.Error) { +func (p *protocol) NewEndpoint(nicID tcpip.NICID, addrWithPrefix tcpip.AddressWithPrefix, linkAddrCache stack.LinkAddressCache, dispatcher stack.TransportDispatcher, linkEP stack.LinkEndpoint) (stack.NetworkEndpoint, *tcpip.Error) { return &endpoint{ - nicid: nicid, + nicID: nicID, id: stack.NetworkEndpointID{LocalAddress: addrWithPrefix.Address}, prefixLen: addrWithPrefix.PrefixLen, linkEP: linkEP, diff --git a/pkg/tcpip/stack/ndp.go b/pkg/tcpip/stack/ndp.go index a216242d8..8e49f7a56 100755 --- a/pkg/tcpip/stack/ndp.go +++ b/pkg/tcpip/stack/ndp.go @@ -78,7 +78,7 @@ const ( // receive and handle NDP related events. type NDPDispatcher interface { // OnDuplicateAddressDetectionStatus will be called when the DAD process - // for an address (addr) on a NIC (with ID nicid) completes. resolved + // for an address (addr) on a NIC (with ID nicID) completes. resolved // will be set to true if DAD completed successfully (no duplicate addr // detected); false otherwise (addr was detected to be a duplicate on // the link the NIC is a part of, or it was stopped for some other @@ -87,7 +87,7 @@ type NDPDispatcher interface { // // This function is permitted to block indefinitely without interfering // with the stack's operation. - OnDuplicateAddressDetectionStatus(nicid tcpip.NICID, addr tcpip.Address, resolved bool, err *tcpip.Error) + OnDuplicateAddressDetectionStatus(nicID tcpip.NICID, addr tcpip.Address, resolved bool, err *tcpip.Error) // OnDefaultRouterDiscovered will be called when a new default router is // discovered. Implementations must return true along with a new valid @@ -97,7 +97,7 @@ type NDPDispatcher interface { // // This function is not permitted to block indefinitely. This function // is also not permitted to call into the stack. - OnDefaultRouterDiscovered(nicid tcpip.NICID, addr tcpip.Address) (bool, []tcpip.Route) + OnDefaultRouterDiscovered(nicID tcpip.NICID, addr tcpip.Address) (bool, []tcpip.Route) // OnDefaultRouterInvalidated will be called when a discovered default // router is invalidated. Implementers must return a new valid route @@ -105,7 +105,7 @@ type NDPDispatcher interface { // // This function is not permitted to block indefinitely. This function // is also not permitted to call into the stack. - OnDefaultRouterInvalidated(nicid tcpip.NICID, addr tcpip.Address) []tcpip.Route + OnDefaultRouterInvalidated(nicID tcpip.NICID, addr tcpip.Address) []tcpip.Route } // NDPConfigurations is the NDP configurations for the netstack. diff --git a/pkg/tcpip/stack/registration.go b/pkg/tcpip/stack/registration.go index 5806d294c..c0026f5a3 100644 --- a/pkg/tcpip/stack/registration.go +++ b/pkg/tcpip/stack/registration.go @@ -117,7 +117,7 @@ type PacketEndpoint interface { // should construct its own ethernet header for applications. // // HandlePacket takes ownership of pkt. - HandlePacket(nicid tcpip.NICID, addr tcpip.LinkAddress, netProto tcpip.NetworkProtocolNumber, pkt tcpip.PacketBuffer) + HandlePacket(nicID tcpip.NICID, addr tcpip.LinkAddress, netProto tcpip.NetworkProtocolNumber, pkt tcpip.PacketBuffer) } // TransportProtocol is the interface that needs to be implemented by transport @@ -281,7 +281,7 @@ type NetworkProtocol interface { ParseAddresses(v buffer.View) (src, dst tcpip.Address) // NewEndpoint creates a new endpoint of this protocol. - NewEndpoint(nicid tcpip.NICID, addrWithPrefix tcpip.AddressWithPrefix, linkAddrCache LinkAddressCache, dispatcher TransportDispatcher, sender LinkEndpoint) (NetworkEndpoint, *tcpip.Error) + NewEndpoint(nicID tcpip.NICID, addrWithPrefix tcpip.AddressWithPrefix, linkAddrCache LinkAddressCache, dispatcher TransportDispatcher, sender LinkEndpoint) (NetworkEndpoint, *tcpip.Error) // SetOption allows enabling/disabling protocol specific features. // SetOption returns an error if the option is not supported or the @@ -440,10 +440,10 @@ type LinkAddressResolver interface { type LinkAddressCache interface { // CheckLocalAddress determines if the given local address exists, and if it // does not exist. - CheckLocalAddress(nicid tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.NICID + CheckLocalAddress(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.NICID // AddLinkAddress adds a link address to the cache. - AddLinkAddress(nicid tcpip.NICID, addr tcpip.Address, linkAddr tcpip.LinkAddress) + AddLinkAddress(nicID tcpip.NICID, addr tcpip.Address, linkAddr tcpip.LinkAddress) // GetLinkAddress looks up the cache to translate address to link address (e.g. IP -> MAC). // If the LinkEndpoint requests address resolution and there is a LinkAddressResolver @@ -454,10 +454,10 @@ type LinkAddressCache interface { // If address resolution is required, ErrNoLinkAddress and a notification channel is // returned for the top level caller to block. Channel is closed once address resolution // is complete (success or not). - GetLinkAddress(nicid tcpip.NICID, addr, localAddr tcpip.Address, protocol tcpip.NetworkProtocolNumber, w *sleep.Waker) (tcpip.LinkAddress, <-chan struct{}, *tcpip.Error) + GetLinkAddress(nicID tcpip.NICID, addr, localAddr tcpip.Address, protocol tcpip.NetworkProtocolNumber, w *sleep.Waker) (tcpip.LinkAddress, <-chan struct{}, *tcpip.Error) // RemoveWaker removes a waker that has been added in GetLinkAddress(). - RemoveWaker(nicid tcpip.NICID, addr tcpip.Address, waker *sleep.Waker) + RemoveWaker(nicID tcpip.NICID, addr tcpip.Address, waker *sleep.Waker) } // RawFactory produces endpoints for writing various types of raw packets. diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go index 08599d765..99809df75 100644 --- a/pkg/tcpip/stack/stack.go +++ b/pkg/tcpip/stack/stack.go @@ -1055,13 +1055,13 @@ func (s *Stack) CheckNetworkProtocol(protocol tcpip.NetworkProtocolNumber) bool // CheckLocalAddress determines if the given local address exists, and if it // does, returns the id of the NIC it's bound to. Returns 0 if the address // does not exist. -func (s *Stack) CheckLocalAddress(nicid tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.NICID { +func (s *Stack) CheckLocalAddress(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.NICID { s.mu.RLock() defer s.mu.RUnlock() // If a NIC is specified, we try to find the address there only. - if nicid != 0 { - nic := s.nics[nicid] + if nicID != 0 { + nic := s.nics[nicID] if nic == nil { return 0 } @@ -1120,35 +1120,35 @@ func (s *Stack) SetSpoofing(nicID tcpip.NICID, enable bool) *tcpip.Error { } // AddLinkAddress adds a link address to the stack link cache. -func (s *Stack) AddLinkAddress(nicid tcpip.NICID, addr tcpip.Address, linkAddr tcpip.LinkAddress) { - fullAddr := tcpip.FullAddress{NIC: nicid, Addr: addr} +func (s *Stack) AddLinkAddress(nicID tcpip.NICID, addr tcpip.Address, linkAddr tcpip.LinkAddress) { + fullAddr := tcpip.FullAddress{NIC: nicID, Addr: addr} s.linkAddrCache.add(fullAddr, linkAddr) // TODO: provide a way for a transport endpoint to receive a signal // that AddLinkAddress for a particular address has been called. } // GetLinkAddress implements LinkAddressCache.GetLinkAddress. -func (s *Stack) GetLinkAddress(nicid tcpip.NICID, addr, localAddr tcpip.Address, protocol tcpip.NetworkProtocolNumber, waker *sleep.Waker) (tcpip.LinkAddress, <-chan struct{}, *tcpip.Error) { +func (s *Stack) GetLinkAddress(nicID tcpip.NICID, addr, localAddr tcpip.Address, protocol tcpip.NetworkProtocolNumber, waker *sleep.Waker) (tcpip.LinkAddress, <-chan struct{}, *tcpip.Error) { s.mu.RLock() - nic := s.nics[nicid] + nic := s.nics[nicID] if nic == nil { s.mu.RUnlock() return "", nil, tcpip.ErrUnknownNICID } s.mu.RUnlock() - fullAddr := tcpip.FullAddress{NIC: nicid, Addr: addr} + fullAddr := tcpip.FullAddress{NIC: nicID, Addr: addr} linkRes := s.linkAddrResolvers[protocol] return s.linkAddrCache.get(fullAddr, linkRes, localAddr, nic.linkEP, waker) } // RemoveWaker implements LinkAddressCache.RemoveWaker. -func (s *Stack) RemoveWaker(nicid tcpip.NICID, addr tcpip.Address, waker *sleep.Waker) { +func (s *Stack) RemoveWaker(nicID tcpip.NICID, addr tcpip.Address, waker *sleep.Waker) { s.mu.RLock() defer s.mu.RUnlock() - if nic := s.nics[nicid]; nic == nil { - fullAddr := tcpip.FullAddress{NIC: nicid, Addr: addr} + if nic := s.nics[nicID]; nic == nil { + fullAddr := tcpip.FullAddress{NIC: nicID, Addr: addr} s.linkAddrCache.removeWaker(fullAddr, waker) } } @@ -1344,9 +1344,9 @@ func (s *Stack) unregisterPacketEndpointLocked(nicID tcpip.NICID, netProto tcpip // WritePacket writes data directly to the specified NIC. It adds an ethernet // header based on the arguments. -func (s *Stack) WritePacket(nicid tcpip.NICID, dst tcpip.LinkAddress, netProto tcpip.NetworkProtocolNumber, payload buffer.VectorisedView) *tcpip.Error { +func (s *Stack) WritePacket(nicID tcpip.NICID, dst tcpip.LinkAddress, netProto tcpip.NetworkProtocolNumber, payload buffer.VectorisedView) *tcpip.Error { s.mu.Lock() - nic, ok := s.nics[nicid] + nic, ok := s.nics[nicID] s.mu.Unlock() if !ok { return tcpip.ErrUnknownDevice @@ -1372,9 +1372,9 @@ func (s *Stack) WritePacket(nicid tcpip.NICID, dst tcpip.LinkAddress, netProto t // WriteRawPacket writes data directly to the specified NIC without adding any // headers. -func (s *Stack) WriteRawPacket(nicid tcpip.NICID, payload buffer.VectorisedView) *tcpip.Error { +func (s *Stack) WriteRawPacket(nicID tcpip.NICID, payload buffer.VectorisedView) *tcpip.Error { s.mu.Lock() - nic, ok := s.nics[nicid] + nic, ok := s.nics[nicID] s.mu.Unlock() if !ok { return tcpip.ErrUnknownDevice diff --git a/pkg/tcpip/transport/icmp/endpoint.go b/pkg/tcpip/transport/icmp/endpoint.go index 0092d0ea9..70e008d36 100644 --- a/pkg/tcpip/transport/icmp/endpoint.go +++ b/pkg/tcpip/transport/icmp/endpoint.go @@ -278,13 +278,13 @@ func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, <-c } else { // Reject destination address if it goes through a different // NIC than the endpoint was bound to. - nicid := to.NIC + nicID := to.NIC if e.BindNICID != 0 { - if nicid != 0 && nicid != e.BindNICID { + if nicID != 0 && nicID != e.BindNICID { return 0, nil, tcpip.ErrNoRoute } - nicid = e.BindNICID + nicID = e.BindNICID } toCopy := *to @@ -295,7 +295,7 @@ func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, <-c } // Find the enpoint. - r, err := e.stack.FindRoute(nicid, e.BindAddr, to.Addr, netProto, false /* multicastLoop */) + r, err := e.stack.FindRoute(nicID, e.BindAddr, to.Addr, netProto, false /* multicastLoop */) if err != nil { return 0, nil, err } @@ -483,7 +483,7 @@ func (e *endpoint) Connect(addr tcpip.FullAddress) *tcpip.Error { e.mu.Lock() defer e.mu.Unlock() - nicid := addr.NIC + nicID := addr.NIC localPort := uint16(0) switch e.state { case stateBound, stateConnected: @@ -492,11 +492,11 @@ func (e *endpoint) Connect(addr tcpip.FullAddress) *tcpip.Error { break } - if nicid != 0 && nicid != e.BindNICID { + if nicID != 0 && nicID != e.BindNICID { return tcpip.ErrInvalidEndpointState } - nicid = e.BindNICID + nicID = e.BindNICID default: return tcpip.ErrInvalidEndpointState } @@ -507,7 +507,7 @@ func (e *endpoint) Connect(addr tcpip.FullAddress) *tcpip.Error { } // Find a route to the desired destination. - r, err := e.stack.FindRoute(nicid, e.BindAddr, addr.Addr, netProto, false /* multicastLoop */) + r, err := e.stack.FindRoute(nicID, e.BindAddr, addr.Addr, netProto, false /* multicastLoop */) if err != nil { return err } @@ -524,14 +524,14 @@ func (e *endpoint) Connect(addr tcpip.FullAddress) *tcpip.Error { // v6only is set to false and this is an ipv6 endpoint. netProtos := []tcpip.NetworkProtocolNumber{netProto} - id, err = e.registerWithStack(nicid, netProtos, id) + id, err = e.registerWithStack(nicID, netProtos, id) if err != nil { return err } e.ID = id e.route = r.Clone() - e.RegisterNICID = nicid + e.RegisterNICID = nicID e.state = stateConnected @@ -582,18 +582,18 @@ func (*endpoint) Accept() (tcpip.Endpoint, *waiter.Queue, *tcpip.Error) { return nil, nil, tcpip.ErrNotSupported } -func (e *endpoint) registerWithStack(nicid tcpip.NICID, netProtos []tcpip.NetworkProtocolNumber, id stack.TransportEndpointID) (stack.TransportEndpointID, *tcpip.Error) { +func (e *endpoint) registerWithStack(nicID tcpip.NICID, netProtos []tcpip.NetworkProtocolNumber, id stack.TransportEndpointID) (stack.TransportEndpointID, *tcpip.Error) { if id.LocalPort != 0 { // The endpoint already has a local port, just attempt to // register it. - err := e.stack.RegisterTransportEndpoint(nicid, netProtos, e.TransProto, id, e, false /* reuse */, 0 /* bindToDevice */) + err := e.stack.RegisterTransportEndpoint(nicID, netProtos, e.TransProto, id, e, false /* reuse */, 0 /* bindToDevice */) return id, err } // We need to find a port for the endpoint. _, err := e.stack.PickEphemeralPort(func(p uint16) (bool, *tcpip.Error) { id.LocalPort = p - err := e.stack.RegisterTransportEndpoint(nicid, netProtos, e.TransProto, id, e, false /* reuse */, 0 /* bindtodevice */) + err := e.stack.RegisterTransportEndpoint(nicID, netProtos, e.TransProto, id, e, false /* reuse */, 0 /* bindtodevice */) switch err { case nil: return true, nil diff --git a/pkg/tcpip/transport/packet/endpoint.go b/pkg/tcpip/transport/packet/endpoint.go index 26335094e..0010b5e5f 100755 --- a/pkg/tcpip/transport/packet/endpoint.go +++ b/pkg/tcpip/transport/packet/endpoint.go @@ -266,7 +266,7 @@ func (ep *endpoint) GetSockOpt(opt interface{}) *tcpip.Error { } // HandlePacket implements stack.PacketEndpoint.HandlePacket. -func (ep *endpoint) HandlePacket(nicid tcpip.NICID, localAddr tcpip.LinkAddress, netProto tcpip.NetworkProtocolNumber, pkt tcpip.PacketBuffer) { +func (ep *endpoint) HandlePacket(nicID tcpip.NICID, localAddr tcpip.LinkAddress, netProto tcpip.NetworkProtocolNumber, pkt tcpip.PacketBuffer) { ep.rcvMu.Lock() // Drop the packet if our buffer is currently full. @@ -293,13 +293,13 @@ func (ep *endpoint) HandlePacket(nicid tcpip.NICID, localAddr tcpip.LinkAddress, // Get info directly from the ethernet header. hdr := header.Ethernet(pkt.LinkHeader) packet.senderAddr = tcpip.FullAddress{ - NIC: nicid, + NIC: nicID, Addr: tcpip.Address(hdr.SourceAddress()), } } else { // Guess the would-be ethernet header. packet.senderAddr = tcpip.FullAddress{ - NIC: nicid, + NIC: nicID, Addr: tcpip.Address(localAddr), } } diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go index d29f0f81b..79fec6b77 100644 --- a/pkg/tcpip/transport/tcp/endpoint.go +++ b/pkg/tcpip/transport/tcp/endpoint.go @@ -1214,9 +1214,9 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error { e.bindToDevice = 0 return nil } - for nicid, nic := range e.stack.NICInfo() { + for nicID, nic := range e.stack.NICInfo() { if nic.Name == string(v) { - e.bindToDevice = nicid + e.bindToDevice = nicID return nil } } @@ -1634,7 +1634,7 @@ func (e *endpoint) connect(addr tcpip.FullAddress, handshake bool, run bool) *tc return tcpip.ErrAlreadyConnected } - nicid := addr.NIC + nicID := addr.NIC switch e.state { case StateBound: // If we're already bound to a NIC but the caller is requesting @@ -1643,11 +1643,11 @@ func (e *endpoint) connect(addr tcpip.FullAddress, handshake bool, run bool) *tc break } - if nicid != 0 && nicid != e.boundNICID { + if nicID != 0 && nicID != e.boundNICID { return tcpip.ErrNoRoute } - nicid = e.boundNICID + nicID = e.boundNICID case StateInitial: // Nothing to do. We'll eventually fill-in the gaps in the ID (if any) @@ -1666,7 +1666,7 @@ func (e *endpoint) connect(addr tcpip.FullAddress, handshake bool, run bool) *tc } // Find a route to the desired destination. - r, err := e.stack.FindRoute(nicid, e.ID.LocalAddress, addr.Addr, netProto, false /* multicastLoop */) + r, err := e.stack.FindRoute(nicID, e.ID.LocalAddress, addr.Addr, netProto, false /* multicastLoop */) if err != nil { return err } @@ -1681,7 +1681,7 @@ func (e *endpoint) connect(addr tcpip.FullAddress, handshake bool, run bool) *tc if e.ID.LocalPort != 0 { // The endpoint is bound to a port, attempt to register it. - err := e.stack.RegisterTransportEndpoint(nicid, netProtos, ProtocolNumber, e.ID, e, e.reusePort, e.bindToDevice) + err := e.stack.RegisterTransportEndpoint(nicID, netProtos, ProtocolNumber, e.ID, e, e.reusePort, e.bindToDevice) if err != nil { return err } @@ -1716,7 +1716,7 @@ func (e *endpoint) connect(addr tcpip.FullAddress, handshake bool, run bool) *tc id := e.ID id.LocalPort = p - switch e.stack.RegisterTransportEndpoint(nicid, netProtos, ProtocolNumber, id, e, e.reusePort, e.bindToDevice) { + switch e.stack.RegisterTransportEndpoint(nicID, netProtos, ProtocolNumber, id, e, e.reusePort, e.bindToDevice) { case nil: e.ID = id return true, nil @@ -1741,7 +1741,7 @@ func (e *endpoint) connect(addr tcpip.FullAddress, handshake bool, run bool) *tc e.isRegistered = true e.state = StateConnecting e.route = r.Clone() - e.boundNICID = nicid + e.boundNICID = nicID e.effectiveNetProtos = netProtos e.connectingAddress = connectingAddr diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go index 4e11de9db..5270f24df 100644 --- a/pkg/tcpip/transport/udp/endpoint.go +++ b/pkg/tcpip/transport/udp/endpoint.go @@ -282,7 +282,7 @@ func (e *endpoint) prepareForWrite(to *tcpip.FullAddress) (retry bool, err *tcpi // connectRoute establishes a route to the specified interface or the // configured multicast interface if no interface is specified and the // specified address is a multicast address. -func (e *endpoint) connectRoute(nicid tcpip.NICID, addr tcpip.FullAddress, netProto tcpip.NetworkProtocolNumber) (stack.Route, tcpip.NICID, *tcpip.Error) { +func (e *endpoint) connectRoute(nicID tcpip.NICID, addr tcpip.FullAddress, netProto tcpip.NetworkProtocolNumber) (stack.Route, tcpip.NICID, *tcpip.Error) { localAddr := e.ID.LocalAddress if isBroadcastOrMulticast(localAddr) { // A packet can only originate from a unicast address (i.e., an interface). @@ -290,20 +290,20 @@ func (e *endpoint) connectRoute(nicid tcpip.NICID, addr tcpip.FullAddress, netPr } if header.IsV4MulticastAddress(addr.Addr) || header.IsV6MulticastAddress(addr.Addr) { - if nicid == 0 { - nicid = e.multicastNICID + if nicID == 0 { + nicID = e.multicastNICID } - if localAddr == "" && nicid == 0 { + if localAddr == "" && nicID == 0 { localAddr = e.multicastAddr } } // Find a route to the desired destination. - r, err := e.stack.FindRoute(nicid, localAddr, addr.Addr, netProto, e.multicastLoop) + r, err := e.stack.FindRoute(nicID, localAddr, addr.Addr, netProto, e.multicastLoop) if err != nil { return stack.Route{}, 0, err } - return r, nicid, nil + return r, nicID, nil } // Write writes data to the endpoint's peer. This method does not block @@ -382,13 +382,13 @@ func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, <-c } else { // Reject destination address if it goes through a different // NIC than the endpoint was bound to. - nicid := to.NIC + nicID := to.NIC if e.BindNICID != 0 { - if nicid != 0 && nicid != e.BindNICID { + if nicID != 0 && nicID != e.BindNICID { return 0, nil, tcpip.ErrNoRoute } - nicid = e.BindNICID + nicID = e.BindNICID } if to.Addr == header.IPv4Broadcast && !e.broadcast { @@ -400,7 +400,7 @@ func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, <-c return 0, nil, err } - r, _, err := e.connectRoute(nicid, *to, netProto) + r, _, err := e.connectRoute(nicID, *to, netProto) if err != nil { return 0, nil, err } @@ -622,9 +622,9 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error { e.bindToDevice = 0 return nil } - for nicid, nic := range e.stack.NICInfo() { + for nicID, nic := range e.stack.NICInfo() { if nic.Name == string(v) { - e.bindToDevice = nicid + e.bindToDevice = nicID return nil } } @@ -907,7 +907,7 @@ func (e *endpoint) Connect(addr tcpip.FullAddress) *tcpip.Error { e.mu.Lock() defer e.mu.Unlock() - nicid := addr.NIC + nicID := addr.NIC var localPort uint16 switch e.state { case StateInitial: @@ -917,16 +917,16 @@ func (e *endpoint) Connect(addr tcpip.FullAddress) *tcpip.Error { break } - if nicid != 0 && nicid != e.BindNICID { + if nicID != 0 && nicID != e.BindNICID { return tcpip.ErrInvalidEndpointState } - nicid = e.BindNICID + nicID = e.BindNICID default: return tcpip.ErrInvalidEndpointState } - r, nicid, err := e.connectRoute(nicid, addr, netProto) + r, nicID, err := e.connectRoute(nicID, addr, netProto) if err != nil { return err } @@ -954,7 +954,7 @@ func (e *endpoint) Connect(addr tcpip.FullAddress) *tcpip.Error { } } - id, err = e.registerWithStack(nicid, netProtos, id) + id, err = e.registerWithStack(nicID, netProtos, id) if err != nil { return err } @@ -967,7 +967,7 @@ func (e *endpoint) Connect(addr tcpip.FullAddress) *tcpip.Error { e.ID = id e.route = r.Clone() e.dstPort = addr.Port - e.RegisterNICID = nicid + e.RegisterNICID = nicID e.effectiveNetProtos = netProtos e.state = StateConnected @@ -1022,7 +1022,7 @@ func (*endpoint) Accept() (tcpip.Endpoint, *waiter.Queue, *tcpip.Error) { return nil, nil, tcpip.ErrNotSupported } -func (e *endpoint) registerWithStack(nicid tcpip.NICID, netProtos []tcpip.NetworkProtocolNumber, id stack.TransportEndpointID) (stack.TransportEndpointID, *tcpip.Error) { +func (e *endpoint) registerWithStack(nicID tcpip.NICID, netProtos []tcpip.NetworkProtocolNumber, id stack.TransportEndpointID) (stack.TransportEndpointID, *tcpip.Error) { if e.ID.LocalPort == 0 { port, err := e.stack.ReservePort(netProtos, ProtocolNumber, id.LocalAddress, id.LocalPort, e.reusePort, e.bindToDevice) if err != nil { @@ -1031,7 +1031,7 @@ func (e *endpoint) registerWithStack(nicid tcpip.NICID, netProtos []tcpip.Networ id.LocalPort = port } - err := e.stack.RegisterTransportEndpoint(nicid, netProtos, ProtocolNumber, id, e, e.reusePort, e.bindToDevice) + err := e.stack.RegisterTransportEndpoint(nicID, netProtos, ProtocolNumber, id, e, e.reusePort, e.bindToDevice) if err != nil { e.stack.ReleasePort(netProtos, ProtocolNumber, id.LocalAddress, id.LocalPort, e.bindToDevice) } @@ -1061,11 +1061,11 @@ func (e *endpoint) bindLocked(addr tcpip.FullAddress) *tcpip.Error { } } - nicid := addr.NIC + nicID := addr.NIC if len(addr.Addr) != 0 && !isBroadcastOrMulticast(addr.Addr) { // A local unicast address was specified, verify that it's valid. - nicid = e.stack.CheckLocalAddress(addr.NIC, netProto, addr.Addr) - if nicid == 0 { + nicID = e.stack.CheckLocalAddress(addr.NIC, netProto, addr.Addr) + if nicID == 0 { return tcpip.ErrBadLocalAddress } } @@ -1074,13 +1074,13 @@ func (e *endpoint) bindLocked(addr tcpip.FullAddress) *tcpip.Error { LocalPort: addr.Port, LocalAddress: addr.Addr, } - id, err = e.registerWithStack(nicid, netProtos, id) + id, err = e.registerWithStack(nicID, netProtos, id) if err != nil { return err } e.ID = id - e.RegisterNICID = nicid + e.RegisterNICID = nicID e.effectiveNetProtos = netProtos // Mark endpoint as bound. |