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-rw-r--r--pkg/tcpip/link/channel/channel.go6
-rw-r--r--pkg/tcpip/link/fdbased/endpoint.go18
-rw-r--r--pkg/tcpip/link/fdbased/endpoint_test.go3
-rw-r--r--pkg/tcpip/link/loopback/loopback.go4
-rw-r--r--pkg/tcpip/link/muxed/injectable.go5
-rw-r--r--pkg/tcpip/link/muxed/injectable_test.go4
-rw-r--r--pkg/tcpip/link/sharedmem/sharedmem.go8
-rw-r--r--pkg/tcpip/link/sharedmem/sharedmem_test.go4
-rw-r--r--pkg/tcpip/link/sniffer/sniffer.go18
-rw-r--r--pkg/tcpip/link/waitable/waitable.go7
-rw-r--r--pkg/tcpip/link/waitable/waitable_test.go6
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)