diff options
Diffstat (limited to 'pkg/tcpip/link')
-rw-r--r-- | pkg/tcpip/link/channel/channel.go | 6 | ||||
-rw-r--r-- | pkg/tcpip/link/fdbased/endpoint.go | 18 | ||||
-rw-r--r-- | pkg/tcpip/link/fdbased/endpoint_test.go | 3 | ||||
-rw-r--r-- | pkg/tcpip/link/loopback/loopback.go | 4 | ||||
-rw-r--r-- | pkg/tcpip/link/muxed/injectable.go | 5 | ||||
-rw-r--r-- | pkg/tcpip/link/muxed/injectable_test.go | 4 | ||||
-rw-r--r-- | pkg/tcpip/link/sharedmem/sharedmem.go | 8 | ||||
-rw-r--r-- | pkg/tcpip/link/sharedmem/sharedmem_test.go | 4 | ||||
-rw-r--r-- | pkg/tcpip/link/sniffer/sniffer.go | 18 | ||||
-rw-r--r-- | pkg/tcpip/link/waitable/waitable.go | 7 | ||||
-rw-r--r-- | pkg/tcpip/link/waitable/waitable_test.go | 6 |
11 files changed, 38 insertions, 45 deletions
diff --git a/pkg/tcpip/link/channel/channel.go b/pkg/tcpip/link/channel/channel.go index c40744b8e..eec430d0a 100644 --- a/pkg/tcpip/link/channel/channel.go +++ b/pkg/tcpip/link/channel/channel.go @@ -44,14 +44,12 @@ type Endpoint struct { } // New creates a new channel endpoint. -func New(size int, mtu uint32, linkAddr tcpip.LinkAddress) (tcpip.LinkEndpointID, *Endpoint) { - e := &Endpoint{ +func New(size int, mtu uint32, linkAddr tcpip.LinkAddress) *Endpoint { + return &Endpoint{ C: make(chan PacketInfo, size), mtu: mtu, linkAddr: linkAddr, } - - return stack.RegisterLinkEndpoint(e), e } // Drain removes all outbound packets from the channel and counts them. diff --git a/pkg/tcpip/link/fdbased/endpoint.go b/pkg/tcpip/link/fdbased/endpoint.go index 77f988b9f..adcf21371 100644 --- a/pkg/tcpip/link/fdbased/endpoint.go +++ b/pkg/tcpip/link/fdbased/endpoint.go @@ -165,7 +165,7 @@ type Options struct { // // Makes fd non-blocking, but does not take ownership of fd, which must remain // open for the lifetime of the returned endpoint. -func New(opts *Options) (tcpip.LinkEndpointID, error) { +func New(opts *Options) (stack.LinkEndpoint, error) { caps := stack.LinkEndpointCapabilities(0) if opts.RXChecksumOffload { caps |= stack.CapabilityRXChecksumOffload @@ -190,7 +190,7 @@ func New(opts *Options) (tcpip.LinkEndpointID, error) { } if len(opts.FDs) == 0 { - return 0, fmt.Errorf("opts.FD is empty, at least one FD must be specified") + return nil, fmt.Errorf("opts.FD is empty, at least one FD must be specified") } e := &endpoint{ @@ -207,12 +207,12 @@ func New(opts *Options) (tcpip.LinkEndpointID, error) { for i := 0; i < len(e.fds); i++ { fd := e.fds[i] if err := syscall.SetNonblock(fd, true); err != nil { - return 0, fmt.Errorf("syscall.SetNonblock(%v) failed: %v", fd, err) + return nil, fmt.Errorf("syscall.SetNonblock(%v) failed: %v", fd, err) } isSocket, err := isSocketFD(fd) if err != nil { - return 0, err + return nil, err } if isSocket { if opts.GSOMaxSize != 0 { @@ -222,12 +222,12 @@ func New(opts *Options) (tcpip.LinkEndpointID, error) { } inboundDispatcher, err := createInboundDispatcher(e, fd, isSocket) if err != nil { - return 0, fmt.Errorf("createInboundDispatcher(...) = %v", err) + return nil, fmt.Errorf("createInboundDispatcher(...) = %v", err) } e.inboundDispatchers = append(e.inboundDispatchers, inboundDispatcher) } - return stack.RegisterLinkEndpoint(e), nil + return e, nil } func createInboundDispatcher(e *endpoint, fd int, isSocket bool) (linkDispatcher, error) { @@ -435,14 +435,12 @@ func (e *InjectableEndpoint) Inject(protocol tcpip.NetworkProtocolNumber, vv buf } // NewInjectable creates a new fd-based InjectableEndpoint. -func NewInjectable(fd int, mtu uint32, capabilities stack.LinkEndpointCapabilities) (tcpip.LinkEndpointID, *InjectableEndpoint) { +func NewInjectable(fd int, mtu uint32, capabilities stack.LinkEndpointCapabilities) *InjectableEndpoint { syscall.SetNonblock(fd, true) - e := &InjectableEndpoint{endpoint: endpoint{ + return &InjectableEndpoint{endpoint: endpoint{ fds: []int{fd}, mtu: mtu, caps: capabilities, }} - - return stack.RegisterLinkEndpoint(e), e } diff --git a/pkg/tcpip/link/fdbased/endpoint_test.go b/pkg/tcpip/link/fdbased/endpoint_test.go index e305252d6..04406bc9a 100644 --- a/pkg/tcpip/link/fdbased/endpoint_test.go +++ b/pkg/tcpip/link/fdbased/endpoint_test.go @@ -68,11 +68,10 @@ func newContext(t *testing.T, opt *Options) *context { } opt.FDs = []int{fds[1]} - epID, err := New(opt) + ep, err := New(opt) if err != nil { t.Fatalf("Failed to create FD endpoint: %v", err) } - ep := stack.FindLinkEndpoint(epID).(*endpoint) c := &context{ t: t, diff --git a/pkg/tcpip/link/loopback/loopback.go b/pkg/tcpip/link/loopback/loopback.go index ab6a53988..e121ea1a5 100644 --- a/pkg/tcpip/link/loopback/loopback.go +++ b/pkg/tcpip/link/loopback/loopback.go @@ -32,8 +32,8 @@ type endpoint struct { // New creates a new loopback endpoint. This link-layer endpoint just turns // outbound packets into inbound packets. -func New() tcpip.LinkEndpointID { - return stack.RegisterLinkEndpoint(&endpoint{}) +func New() stack.LinkEndpoint { + return &endpoint{} } // Attach implements stack.LinkEndpoint.Attach. It just saves the stack network- diff --git a/pkg/tcpip/link/muxed/injectable.go b/pkg/tcpip/link/muxed/injectable.go index a577a3d52..3ed7b98d1 100644 --- a/pkg/tcpip/link/muxed/injectable.go +++ b/pkg/tcpip/link/muxed/injectable.go @@ -105,9 +105,8 @@ func (m *InjectableEndpoint) WriteRawPacket(dest tcpip.Address, packet []byte) * } // NewInjectableEndpoint creates a new multi-endpoint injectable endpoint. -func NewInjectableEndpoint(routes map[tcpip.Address]stack.InjectableLinkEndpoint) (tcpip.LinkEndpointID, *InjectableEndpoint) { - e := &InjectableEndpoint{ +func NewInjectableEndpoint(routes map[tcpip.Address]stack.InjectableLinkEndpoint) *InjectableEndpoint { + return &InjectableEndpoint{ routes: routes, } - return stack.RegisterLinkEndpoint(e), e } diff --git a/pkg/tcpip/link/muxed/injectable_test.go b/pkg/tcpip/link/muxed/injectable_test.go index 174b9330f..3086fec00 100644 --- a/pkg/tcpip/link/muxed/injectable_test.go +++ b/pkg/tcpip/link/muxed/injectable_test.go @@ -87,8 +87,8 @@ func makeTestInjectableEndpoint(t *testing.T) (*InjectableEndpoint, *os.File, tc if err != nil { t.Fatal("Failed to create socket pair:", err) } - _, underlyingEndpoint := fdbased.NewInjectable(pair[1], 6500, stack.CapabilityNone) + underlyingEndpoint := fdbased.NewInjectable(pair[1], 6500, stack.CapabilityNone) routes := map[tcpip.Address]stack.InjectableLinkEndpoint{dstIP: underlyingEndpoint} - _, endpoint := NewInjectableEndpoint(routes) + endpoint := NewInjectableEndpoint(routes) return endpoint, os.NewFile(uintptr(pair[0]), "test route end"), dstIP } diff --git a/pkg/tcpip/link/sharedmem/sharedmem.go b/pkg/tcpip/link/sharedmem/sharedmem.go index 834ea5c40..ba387af73 100644 --- a/pkg/tcpip/link/sharedmem/sharedmem.go +++ b/pkg/tcpip/link/sharedmem/sharedmem.go @@ -94,7 +94,7 @@ type endpoint struct { // New creates a new shared-memory-based endpoint. Buffers will be broken up // into buffers of "bufferSize" bytes. -func New(mtu, bufferSize uint32, addr tcpip.LinkAddress, tx, rx QueueConfig) (tcpip.LinkEndpointID, error) { +func New(mtu, bufferSize uint32, addr tcpip.LinkAddress, tx, rx QueueConfig) (stack.LinkEndpoint, error) { e := &endpoint{ mtu: mtu, bufferSize: bufferSize, @@ -102,15 +102,15 @@ func New(mtu, bufferSize uint32, addr tcpip.LinkAddress, tx, rx QueueConfig) (tc } if err := e.tx.init(bufferSize, &tx); err != nil { - return 0, err + return nil, err } if err := e.rx.init(bufferSize, &rx); err != nil { e.tx.cleanup() - return 0, err + return nil, err } - return stack.RegisterLinkEndpoint(e), nil + return e, nil } // Close frees all resources associated with the endpoint. diff --git a/pkg/tcpip/link/sharedmem/sharedmem_test.go b/pkg/tcpip/link/sharedmem/sharedmem_test.go index 98036f367..0e9ba0846 100644 --- a/pkg/tcpip/link/sharedmem/sharedmem_test.go +++ b/pkg/tcpip/link/sharedmem/sharedmem_test.go @@ -119,12 +119,12 @@ func newTestContext(t *testing.T, mtu, bufferSize uint32, addr tcpip.LinkAddress initQueue(t, &c.txq, &c.txCfg) initQueue(t, &c.rxq, &c.rxCfg) - id, err := New(mtu, bufferSize, addr, c.txCfg, c.rxCfg) + ep, err := New(mtu, bufferSize, addr, c.txCfg, c.rxCfg) if err != nil { t.Fatalf("New failed: %v", err) } - c.ep = stack.FindLinkEndpoint(id).(*endpoint) + c.ep = ep.(*endpoint) c.ep.Attach(c) return c diff --git a/pkg/tcpip/link/sniffer/sniffer.go b/pkg/tcpip/link/sniffer/sniffer.go index 36c8c46fc..e7b6d7912 100644 --- a/pkg/tcpip/link/sniffer/sniffer.go +++ b/pkg/tcpip/link/sniffer/sniffer.go @@ -58,10 +58,10 @@ type endpoint struct { // New creates a new sniffer link-layer endpoint. It wraps around another // endpoint and logs packets and they traverse the endpoint. -func New(lower tcpip.LinkEndpointID) tcpip.LinkEndpointID { - return stack.RegisterLinkEndpoint(&endpoint{ - lower: stack.FindLinkEndpoint(lower), - }) +func New(lower stack.LinkEndpoint) stack.LinkEndpoint { + return &endpoint{ + lower: lower, + } } func zoneOffset() (int32, error) { @@ -102,15 +102,15 @@ func writePCAPHeader(w io.Writer, maxLen uint32) error { // snapLen is the maximum amount of a packet to be saved. Packets with a length // less than or equal too snapLen will be saved in their entirety. Longer // packets will be truncated to snapLen. -func NewWithFile(lower tcpip.LinkEndpointID, file *os.File, snapLen uint32) (tcpip.LinkEndpointID, error) { +func NewWithFile(lower stack.LinkEndpoint, file *os.File, snapLen uint32) (stack.LinkEndpoint, error) { if err := writePCAPHeader(file, snapLen); err != nil { - return 0, err + return nil, err } - return stack.RegisterLinkEndpoint(&endpoint{ - lower: stack.FindLinkEndpoint(lower), + return &endpoint{ + lower: lower, file: file, maxPCAPLen: snapLen, - }), nil + }, nil } // DeliverNetworkPacket implements the stack.NetworkDispatcher interface. It is diff --git a/pkg/tcpip/link/waitable/waitable.go b/pkg/tcpip/link/waitable/waitable.go index 3b6ac2ff7..408cc62f7 100644 --- a/pkg/tcpip/link/waitable/waitable.go +++ b/pkg/tcpip/link/waitable/waitable.go @@ -40,11 +40,10 @@ type Endpoint struct { // New creates a new waitable link-layer endpoint. It wraps around another // endpoint and allows the caller to block new write/dispatch calls and wait for // the inflight ones to finish before returning. -func New(lower tcpip.LinkEndpointID) (tcpip.LinkEndpointID, *Endpoint) { - e := &Endpoint{ - lower: stack.FindLinkEndpoint(lower), +func New(lower stack.LinkEndpoint) *Endpoint { + return &Endpoint{ + lower: lower, } - return stack.RegisterLinkEndpoint(e), e } // DeliverNetworkPacket implements stack.NetworkDispatcher.DeliverNetworkPacket. diff --git a/pkg/tcpip/link/waitable/waitable_test.go b/pkg/tcpip/link/waitable/waitable_test.go index 56e18ecb0..1031438b1 100644 --- a/pkg/tcpip/link/waitable/waitable_test.go +++ b/pkg/tcpip/link/waitable/waitable_test.go @@ -72,7 +72,7 @@ func (e *countedEndpoint) WritePacket(r *stack.Route, _ *stack.GSO, hdr buffer.P func TestWaitWrite(t *testing.T) { ep := &countedEndpoint{} - _, wep := New(stack.RegisterLinkEndpoint(ep)) + wep := New(ep) // Write and check that it goes through. wep.WritePacket(nil, nil /* gso */, buffer.Prependable{}, buffer.VectorisedView{}, 0) @@ -97,7 +97,7 @@ func TestWaitWrite(t *testing.T) { func TestWaitDispatch(t *testing.T) { ep := &countedEndpoint{} - _, wep := New(stack.RegisterLinkEndpoint(ep)) + wep := New(ep) // Check that attach happens. wep.Attach(ep) @@ -139,7 +139,7 @@ func TestOtherMethods(t *testing.T) { hdrLen: hdrLen, linkAddr: linkAddr, } - _, wep := New(stack.RegisterLinkEndpoint(ep)) + wep := New(ep) if v := wep.MTU(); v != mtu { t.Fatalf("Unexpected mtu: got=%v, want=%v", v, mtu) |