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-rw-r--r--pkg/tcpip/transport/tcp/endpoint.go27
-rw-r--r--pkg/tcpip/transport/tcp/tcp_test.go42
-rw-r--r--pkg/tcpip/transport/udp/endpoint.go27
-rw-r--r--pkg/tcpip/transport/udp/udp_test.go31
4 files changed, 49 insertions, 78 deletions
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go
index 2ac1b6877..920b24975 100644
--- a/pkg/tcpip/transport/tcp/endpoint.go
+++ b/pkg/tcpip/transport/tcp/endpoint.go
@@ -1279,19 +1279,14 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
return nil
case tcpip.BindToDeviceOption:
- e.mu.Lock()
- defer e.mu.Unlock()
- if v == "" {
- e.bindToDevice = 0
- return nil
- }
- for nicID, nic := range e.stack.NICInfo() {
- if nic.Name == string(v) {
- e.bindToDevice = nicID
- return nil
- }
+ id := tcpip.NICID(v)
+ if id != 0 && !e.stack.HasNIC(id) {
+ return tcpip.ErrUnknownDevice
}
- return tcpip.ErrUnknownDevice
+ e.mu.Lock()
+ e.bindToDevice = id
+ e.mu.Unlock()
+ return nil
case tcpip.QuickAckOption:
if v == 0 {
@@ -1550,12 +1545,8 @@ func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
case *tcpip.BindToDeviceOption:
e.mu.RLock()
- defer e.mu.RUnlock()
- if nic, ok := e.stack.NICInfo()[e.bindToDevice]; ok {
- *o = tcpip.BindToDeviceOption(nic.Name)
- return nil
- }
- *o = ""
+ *o = tcpip.BindToDeviceOption(e.bindToDevice)
+ e.mu.RUnlock()
return nil
case *tcpip.QuickAckOption:
diff --git a/pkg/tcpip/transport/tcp/tcp_test.go b/pkg/tcpip/transport/tcp/tcp_test.go
index 15745ebd4..1aa0733d0 100644
--- a/pkg/tcpip/transport/tcp/tcp_test.go
+++ b/pkg/tcpip/transport/tcp/tcp_test.go
@@ -1083,12 +1083,12 @@ func TestTrafficClassV6(t *testing.T) {
func TestConnectBindToDevice(t *testing.T) {
for _, test := range []struct {
name string
- device string
+ device tcpip.NICID
want tcp.EndpointState
}{
- {"RightDevice", "nic1", tcp.StateEstablished},
- {"WrongDevice", "nic2", tcp.StateSynSent},
- {"AnyDevice", "", tcp.StateEstablished},
+ {"RightDevice", 1, tcp.StateEstablished},
+ {"WrongDevice", 2, tcp.StateSynSent},
+ {"AnyDevice", 0, tcp.StateEstablished},
} {
t.Run(test.name, func(t *testing.T) {
c := context.New(t, defaultMTU)
@@ -3794,47 +3794,41 @@ func TestBindToDeviceOption(t *testing.T) {
}
defer ep.Close()
- opts := stack.NICOptions{Name: "my_device"}
- if err := s.CreateNICWithOptions(321, loopback.New(), opts); err != nil {
- t.Errorf("CreateNICWithOptions(_, _, %+v) failed: %v", opts, err)
- }
-
- // Make an nameless NIC.
- if err := s.CreateNIC(54321, loopback.New()); err != nil {
+ if err := s.CreateNIC(321, loopback.New()); err != nil {
t.Errorf("CreateNIC failed: %v", err)
}
- // strPtr is used instead of taking the address of string literals, which is
+ // nicIDPtr is used instead of taking the address of NICID literals, which is
// a compiler error.
- strPtr := func(s string) *string {
+ nicIDPtr := func(s tcpip.NICID) *tcpip.NICID {
return &s
}
testActions := []struct {
name string
- setBindToDevice *string
+ setBindToDevice *tcpip.NICID
setBindToDeviceError *tcpip.Error
getBindToDevice tcpip.BindToDeviceOption
}{
- {"GetDefaultValue", nil, nil, ""},
- {"BindToNonExistent", strPtr("non_existent_device"), tcpip.ErrUnknownDevice, ""},
- {"BindToExistent", strPtr("my_device"), nil, "my_device"},
- {"UnbindToDevice", strPtr(""), nil, ""},
+ {"GetDefaultValue", nil, nil, 0},
+ {"BindToNonExistent", nicIDPtr(999), tcpip.ErrUnknownDevice, 0},
+ {"BindToExistent", nicIDPtr(321), nil, 321},
+ {"UnbindToDevice", nicIDPtr(0), nil, 0},
}
for _, testAction := range testActions {
t.Run(testAction.name, func(t *testing.T) {
if testAction.setBindToDevice != nil {
bindToDevice := tcpip.BindToDeviceOption(*testAction.setBindToDevice)
- if got, want := ep.SetSockOpt(bindToDevice), testAction.setBindToDeviceError; got != want {
- t.Errorf("SetSockOpt(%v) got %v, want %v", bindToDevice, got, want)
+ if gotErr, wantErr := ep.SetSockOpt(bindToDevice), testAction.setBindToDeviceError; gotErr != wantErr {
+ t.Errorf("SetSockOpt(%v) got %v, want %v", bindToDevice, gotErr, wantErr)
}
}
- bindToDevice := tcpip.BindToDeviceOption("to be modified by GetSockOpt")
- if ep.GetSockOpt(&bindToDevice) != nil {
- t.Errorf("GetSockOpt got %v, want %v", ep.GetSockOpt(&bindToDevice), nil)
+ bindToDevice := tcpip.BindToDeviceOption(88888)
+ if err := ep.GetSockOpt(&bindToDevice); err != nil {
+ t.Errorf("GetSockOpt got %v, want %v", err, nil)
}
if got, want := bindToDevice, testAction.getBindToDevice; got != want {
- t.Errorf("bindToDevice got %q, want %q", got, want)
+ t.Errorf("bindToDevice got %d, want %d", got, want)
}
})
}
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go
index 1a5ee6317..864dc8733 100644
--- a/pkg/tcpip/transport/udp/endpoint.go
+++ b/pkg/tcpip/transport/udp/endpoint.go
@@ -631,19 +631,14 @@ func (e *endpoint) SetSockOpt(opt interface{}) *tcpip.Error {
e.mu.Unlock()
case tcpip.BindToDeviceOption:
- e.mu.Lock()
- defer e.mu.Unlock()
- if v == "" {
- e.bindToDevice = 0
- return nil
- }
- for nicID, nic := range e.stack.NICInfo() {
- if nic.Name == string(v) {
- e.bindToDevice = nicID
- return nil
- }
+ id := tcpip.NICID(v)
+ if id != 0 && !e.stack.HasNIC(id) {
+ return tcpip.ErrUnknownDevice
}
- return tcpip.ErrUnknownDevice
+ e.mu.Lock()
+ e.bindToDevice = id
+ e.mu.Unlock()
+ return nil
case tcpip.BroadcastOption:
e.mu.Lock()
@@ -767,12 +762,8 @@ func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
case *tcpip.BindToDeviceOption:
e.mu.RLock()
- defer e.mu.RUnlock()
- if nic, ok := e.stack.NICInfo()[e.bindToDevice]; ok {
- *o = tcpip.BindToDeviceOption(nic.Name)
- return nil
- }
- *o = tcpip.BindToDeviceOption("")
+ *o = tcpip.BindToDeviceOption(e.bindToDevice)
+ e.mu.RUnlock()
return nil
case *tcpip.KeepaliveEnabledOption:
diff --git a/pkg/tcpip/transport/udp/udp_test.go b/pkg/tcpip/transport/udp/udp_test.go
index 149fff999..0a82bc4fa 100644
--- a/pkg/tcpip/transport/udp/udp_test.go
+++ b/pkg/tcpip/transport/udp/udp_test.go
@@ -513,42 +513,37 @@ func TestBindToDeviceOption(t *testing.T) {
t.Errorf("CreateNICWithOptions(_, _, %+v) failed: %v", opts, err)
}
- // Make an nameless NIC.
- if err := s.CreateNIC(54321, loopback.New()); err != nil {
- t.Errorf("CreateNIC failed: %v", err)
- }
-
- // strPtr is used instead of taking the address of string literals, which is
+ // nicIDPtr is used instead of taking the address of NICID literals, which is
// a compiler error.
- strPtr := func(s string) *string {
+ nicIDPtr := func(s tcpip.NICID) *tcpip.NICID {
return &s
}
testActions := []struct {
name string
- setBindToDevice *string
+ setBindToDevice *tcpip.NICID
setBindToDeviceError *tcpip.Error
getBindToDevice tcpip.BindToDeviceOption
}{
- {"GetDefaultValue", nil, nil, ""},
- {"BindToNonExistent", strPtr("non_existent_device"), tcpip.ErrUnknownDevice, ""},
- {"BindToExistent", strPtr("my_device"), nil, "my_device"},
- {"UnbindToDevice", strPtr(""), nil, ""},
+ {"GetDefaultValue", nil, nil, 0},
+ {"BindToNonExistent", nicIDPtr(999), tcpip.ErrUnknownDevice, 0},
+ {"BindToExistent", nicIDPtr(321), nil, 321},
+ {"UnbindToDevice", nicIDPtr(0), nil, 0},
}
for _, testAction := range testActions {
t.Run(testAction.name, func(t *testing.T) {
if testAction.setBindToDevice != nil {
bindToDevice := tcpip.BindToDeviceOption(*testAction.setBindToDevice)
- if got, want := ep.SetSockOpt(bindToDevice), testAction.setBindToDeviceError; got != want {
- t.Errorf("SetSockOpt(%v) got %v, want %v", bindToDevice, got, want)
+ if gotErr, wantErr := ep.SetSockOpt(bindToDevice), testAction.setBindToDeviceError; gotErr != wantErr {
+ t.Errorf("SetSockOpt(%v) got %v, want %v", bindToDevice, gotErr, wantErr)
}
}
- bindToDevice := tcpip.BindToDeviceOption("to be modified by GetSockOpt")
- if ep.GetSockOpt(&bindToDevice) != nil {
- t.Errorf("GetSockOpt got %v, want %v", ep.GetSockOpt(&bindToDevice), nil)
+ bindToDevice := tcpip.BindToDeviceOption(88888)
+ if err := ep.GetSockOpt(&bindToDevice); err != nil {
+ t.Errorf("GetSockOpt got %v, want %v", err, nil)
}
if got, want := bindToDevice, testAction.getBindToDevice; got != want {
- t.Errorf("bindToDevice got %q, want %q", got, want)
+ t.Errorf("bindToDevice got %d, want %d", got, want)
}
})
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 01:37:36 +0000