diff options
Diffstat (limited to 'pkg/sentry/socket/netlink')
-rw-r--r-- | pkg/sentry/socket/netlink/BUILD | 54 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/message_test.go | 312 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/netlink_state_autogen.go | 149 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/port/BUILD | 16 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/port/port_state_autogen.go | 36 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/port/port_test.go | 82 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/route/BUILD | 21 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/route/route_state_autogen.go | 32 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/uevent/BUILD | 16 | ||||
-rw-r--r-- | pkg/sentry/socket/netlink/uevent/uevent_state_autogen.go | 32 |
10 files changed, 249 insertions, 501 deletions
diff --git a/pkg/sentry/socket/netlink/BUILD b/pkg/sentry/socket/netlink/BUILD deleted file mode 100644 index 171b95c63..000000000 --- a/pkg/sentry/socket/netlink/BUILD +++ /dev/null @@ -1,54 +0,0 @@ -load("//tools:defs.bzl", "go_library", "go_test") - -package(licenses = ["notice"]) - -go_library( - name = "netlink", - srcs = [ - "message.go", - "provider.go", - "provider_vfs2.go", - "socket.go", - "socket_vfs2.go", - ], - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/context", - "//pkg/hostarch", - "//pkg/marshal", - "//pkg/marshal/primitive", - "//pkg/sentry/arch", - "//pkg/sentry/device", - "//pkg/sentry/fs", - "//pkg/sentry/fs/fsutil", - "//pkg/sentry/fsimpl/sockfs", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/auth", - "//pkg/sentry/kernel/time", - "//pkg/sentry/socket", - "//pkg/sentry/socket/netlink/port", - "//pkg/sentry/socket/unix", - "//pkg/sentry/socket/unix/transport", - "//pkg/sentry/vfs", - "//pkg/sync", - "//pkg/syserr", - "//pkg/syserror", - "//pkg/tcpip", - "//pkg/usermem", - "//pkg/waiter", - ], -) - -go_test( - name = "netlink_test", - size = "small", - srcs = [ - "message_test.go", - ], - deps = [ - ":netlink", - "//pkg/abi/linux", - ], -) diff --git a/pkg/sentry/socket/netlink/message_test.go b/pkg/sentry/socket/netlink/message_test.go deleted file mode 100644 index ef13d9386..000000000 --- a/pkg/sentry/socket/netlink/message_test.go +++ /dev/null @@ -1,312 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package message_test - -import ( - "bytes" - "reflect" - "testing" - - "gvisor.dev/gvisor/pkg/abi/linux" - "gvisor.dev/gvisor/pkg/sentry/socket/netlink" -) - -type dummyNetlinkMsg struct { - Foo uint16 -} - -func TestParseMessage(t *testing.T) { - tests := []struct { - desc string - input []byte - - header linux.NetlinkMessageHeader - dataMsg *dummyNetlinkMsg - restLen int - ok bool - }{ - { - desc: "valid", - input: []byte{ - 0x14, 0x00, 0x00, 0x00, // Length - 0x01, 0x00, // Type - 0x02, 0x00, // Flags - 0x03, 0x00, 0x00, 0x00, // Seq - 0x04, 0x00, 0x00, 0x00, // PortID - 0x30, 0x31, 0x00, 0x00, // Data message with 2 bytes padding - }, - header: linux.NetlinkMessageHeader{ - Length: 20, - Type: 1, - Flags: 2, - Seq: 3, - PortID: 4, - }, - dataMsg: &dummyNetlinkMsg{ - Foo: 0x3130, - }, - restLen: 0, - ok: true, - }, - { - desc: "valid with next message", - input: []byte{ - 0x14, 0x00, 0x00, 0x00, // Length - 0x01, 0x00, // Type - 0x02, 0x00, // Flags - 0x03, 0x00, 0x00, 0x00, // Seq - 0x04, 0x00, 0x00, 0x00, // PortID - 0x30, 0x31, 0x00, 0x00, // Data message with 2 bytes padding - 0xFF, // Next message (rest) - }, - header: linux.NetlinkMessageHeader{ - Length: 20, - Type: 1, - Flags: 2, - Seq: 3, - PortID: 4, - }, - dataMsg: &dummyNetlinkMsg{ - Foo: 0x3130, - }, - restLen: 1, - ok: true, - }, - { - desc: "valid for last message without padding", - input: []byte{ - 0x12, 0x00, 0x00, 0x00, // Length - 0x01, 0x00, // Type - 0x02, 0x00, // Flags - 0x03, 0x00, 0x00, 0x00, // Seq - 0x04, 0x00, 0x00, 0x00, // PortID - 0x30, 0x31, // Data message - }, - header: linux.NetlinkMessageHeader{ - Length: 18, - Type: 1, - Flags: 2, - Seq: 3, - PortID: 4, - }, - dataMsg: &dummyNetlinkMsg{ - Foo: 0x3130, - }, - restLen: 0, - ok: true, - }, - { - desc: "valid for last message not to be aligned", - input: []byte{ - 0x13, 0x00, 0x00, 0x00, // Length - 0x01, 0x00, // Type - 0x02, 0x00, // Flags - 0x03, 0x00, 0x00, 0x00, // Seq - 0x04, 0x00, 0x00, 0x00, // PortID - 0x30, 0x31, // Data message - 0x00, // Excessive 1 byte permitted at end - }, - header: linux.NetlinkMessageHeader{ - Length: 19, - Type: 1, - Flags: 2, - Seq: 3, - PortID: 4, - }, - dataMsg: &dummyNetlinkMsg{ - Foo: 0x3130, - }, - restLen: 0, - ok: true, - }, - { - desc: "header.Length too short", - input: []byte{ - 0x04, 0x00, 0x00, 0x00, // Length - 0x01, 0x00, // Type - 0x02, 0x00, // Flags - 0x03, 0x00, 0x00, 0x00, // Seq - 0x04, 0x00, 0x00, 0x00, // PortID - 0x30, 0x31, 0x00, 0x00, // Data message with 2 bytes padding - }, - ok: false, - }, - { - desc: "header.Length too long", - input: []byte{ - 0xFF, 0xFF, 0x00, 0x00, // Length - 0x01, 0x00, // Type - 0x02, 0x00, // Flags - 0x03, 0x00, 0x00, 0x00, // Seq - 0x04, 0x00, 0x00, 0x00, // PortID - 0x30, 0x31, 0x00, 0x00, // Data message with 2 bytes padding - }, - ok: false, - }, - { - desc: "header incomplete", - input: []byte{ - 0x04, 0x00, 0x00, 0x00, // Length - }, - ok: false, - }, - { - desc: "empty message", - input: []byte{}, - ok: false, - }, - } - for _, test := range tests { - msg, rest, ok := netlink.ParseMessage(test.input) - if ok != test.ok { - t.Errorf("%v: got ok = %v, want = %v", test.desc, ok, test.ok) - continue - } - if !test.ok { - continue - } - if !reflect.DeepEqual(msg.Header(), test.header) { - t.Errorf("%v: got hdr = %+v, want = %+v", test.desc, msg.Header(), test.header) - } - - dataMsg := &dummyNetlinkMsg{} - _, dataOk := msg.GetData(dataMsg) - if !dataOk { - t.Errorf("%v: GetData.ok = %v, want = true", test.desc, dataOk) - } else if !reflect.DeepEqual(dataMsg, test.dataMsg) { - t.Errorf("%v: GetData.msg = %+v, want = %+v", test.desc, dataMsg, test.dataMsg) - } - - if got, want := rest, test.input[len(test.input)-test.restLen:]; !bytes.Equal(got, want) { - t.Errorf("%v: got rest = %v, want = %v", test.desc, got, want) - } - } -} - -func TestAttrView(t *testing.T) { - tests := []struct { - desc string - input []byte - - // Outputs for ParseFirst. - hdr linux.NetlinkAttrHeader - value []byte - restLen int - ok bool - - // Outputs for Empty. - isEmpty bool - }{ - { - desc: "valid", - input: []byte{ - 0x06, 0x00, // Length - 0x01, 0x00, // Type - 0x30, 0x31, 0x00, 0x00, // Data with 2 bytes padding - }, - hdr: linux.NetlinkAttrHeader{ - Length: 6, - Type: 1, - }, - value: []byte{0x30, 0x31}, - restLen: 0, - ok: true, - isEmpty: false, - }, - { - desc: "at alignment", - input: []byte{ - 0x08, 0x00, // Length - 0x01, 0x00, // Type - 0x30, 0x31, 0x32, 0x33, // Data - }, - hdr: linux.NetlinkAttrHeader{ - Length: 8, - Type: 1, - }, - value: []byte{0x30, 0x31, 0x32, 0x33}, - restLen: 0, - ok: true, - isEmpty: false, - }, - { - desc: "at alignment with rest data", - input: []byte{ - 0x08, 0x00, // Length - 0x01, 0x00, // Type - 0x30, 0x31, 0x32, 0x33, // Data - 0xFF, 0xFE, // Rest data - }, - hdr: linux.NetlinkAttrHeader{ - Length: 8, - Type: 1, - }, - value: []byte{0x30, 0x31, 0x32, 0x33}, - restLen: 2, - ok: true, - isEmpty: false, - }, - { - desc: "hdr.Length too long", - input: []byte{ - 0xFF, 0x00, // Length - 0x01, 0x00, // Type - 0x30, 0x31, 0x32, 0x33, // Data - }, - ok: false, - isEmpty: false, - }, - { - desc: "hdr.Length too short", - input: []byte{ - 0x01, 0x00, // Length - 0x01, 0x00, // Type - 0x30, 0x31, 0x32, 0x33, // Data - }, - ok: false, - isEmpty: false, - }, - { - desc: "empty", - input: []byte{}, - ok: false, - isEmpty: true, - }, - } - for _, test := range tests { - attrs := netlink.AttrsView(test.input) - - // Test ParseFirst(). - hdr, value, rest, ok := attrs.ParseFirst() - if ok != test.ok { - t.Errorf("%v: got ok = %v, want = %v", test.desc, ok, test.ok) - } else if test.ok { - if !reflect.DeepEqual(hdr, test.hdr) { - t.Errorf("%v: got hdr = %+v, want = %+v", test.desc, hdr, test.hdr) - } - if !bytes.Equal(value, test.value) { - t.Errorf("%v: got value = %v, want = %v", test.desc, value, test.value) - } - if wantRest := test.input[len(test.input)-test.restLen:]; !bytes.Equal(rest, wantRest) { - t.Errorf("%v: got rest = %v, want = %v", test.desc, rest, wantRest) - } - } - - // Test Empty(). - if got, want := attrs.Empty(), test.isEmpty; got != want { - t.Errorf("%v: got empty = %v, want = %v", test.desc, got, want) - } - } -} diff --git a/pkg/sentry/socket/netlink/netlink_state_autogen.go b/pkg/sentry/socket/netlink/netlink_state_autogen.go new file mode 100644 index 000000000..29c549880 --- /dev/null +++ b/pkg/sentry/socket/netlink/netlink_state_autogen.go @@ -0,0 +1,149 @@ +// automatically generated by stateify. + +package netlink + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (s *Socket) StateTypeName() string { + return "pkg/sentry/socket/netlink.Socket" +} + +func (s *Socket) StateFields() []string { + return []string{ + "socketOpsCommon", + } +} + +func (s *Socket) beforeSave() {} + +// +checklocksignore +func (s *Socket) StateSave(stateSinkObject state.Sink) { + s.beforeSave() + stateSinkObject.Save(0, &s.socketOpsCommon) +} + +func (s *Socket) afterLoad() {} + +// +checklocksignore +func (s *Socket) StateLoad(stateSourceObject state.Source) { + stateSourceObject.Load(0, &s.socketOpsCommon) +} + +func (s *socketOpsCommon) StateTypeName() string { + return "pkg/sentry/socket/netlink.socketOpsCommon" +} + +func (s *socketOpsCommon) StateFields() []string { + return []string{ + "SendReceiveTimeout", + "ports", + "protocol", + "skType", + "ep", + "connection", + "bound", + "portID", + "sendBufferSize", + "filter", + } +} + +func (s *socketOpsCommon) beforeSave() {} + +// +checklocksignore +func (s *socketOpsCommon) StateSave(stateSinkObject state.Sink) { + s.beforeSave() + stateSinkObject.Save(0, &s.SendReceiveTimeout) + stateSinkObject.Save(1, &s.ports) + stateSinkObject.Save(2, &s.protocol) + stateSinkObject.Save(3, &s.skType) + stateSinkObject.Save(4, &s.ep) + stateSinkObject.Save(5, &s.connection) + stateSinkObject.Save(6, &s.bound) + stateSinkObject.Save(7, &s.portID) + stateSinkObject.Save(8, &s.sendBufferSize) + stateSinkObject.Save(9, &s.filter) +} + +func (s *socketOpsCommon) afterLoad() {} + +// +checklocksignore +func (s *socketOpsCommon) StateLoad(stateSourceObject state.Source) { + stateSourceObject.Load(0, &s.SendReceiveTimeout) + stateSourceObject.Load(1, &s.ports) + stateSourceObject.Load(2, &s.protocol) + stateSourceObject.Load(3, &s.skType) + stateSourceObject.Load(4, &s.ep) + stateSourceObject.Load(5, &s.connection) + stateSourceObject.Load(6, &s.bound) + stateSourceObject.Load(7, &s.portID) + stateSourceObject.Load(8, &s.sendBufferSize) + stateSourceObject.Load(9, &s.filter) +} + +func (k *kernelSCM) StateTypeName() string { + return "pkg/sentry/socket/netlink.kernelSCM" +} + +func (k *kernelSCM) StateFields() []string { + return []string{} +} + +func (k *kernelSCM) beforeSave() {} + +// +checklocksignore +func (k *kernelSCM) StateSave(stateSinkObject state.Sink) { + k.beforeSave() +} + +func (k *kernelSCM) afterLoad() {} + +// +checklocksignore +func (k *kernelSCM) StateLoad(stateSourceObject state.Source) { +} + +func (s *SocketVFS2) StateTypeName() string { + return "pkg/sentry/socket/netlink.SocketVFS2" +} + +func (s *SocketVFS2) StateFields() []string { + return []string{ + "vfsfd", + "FileDescriptionDefaultImpl", + "DentryMetadataFileDescriptionImpl", + "LockFD", + "socketOpsCommon", + } +} + +func (s *SocketVFS2) beforeSave() {} + +// +checklocksignore +func (s *SocketVFS2) StateSave(stateSinkObject state.Sink) { + s.beforeSave() + stateSinkObject.Save(0, &s.vfsfd) + stateSinkObject.Save(1, &s.FileDescriptionDefaultImpl) + stateSinkObject.Save(2, &s.DentryMetadataFileDescriptionImpl) + stateSinkObject.Save(3, &s.LockFD) + stateSinkObject.Save(4, &s.socketOpsCommon) +} + +func (s *SocketVFS2) afterLoad() {} + +// +checklocksignore +func (s *SocketVFS2) StateLoad(stateSourceObject state.Source) { + stateSourceObject.Load(0, &s.vfsfd) + stateSourceObject.Load(1, &s.FileDescriptionDefaultImpl) + stateSourceObject.Load(2, &s.DentryMetadataFileDescriptionImpl) + stateSourceObject.Load(3, &s.LockFD) + stateSourceObject.Load(4, &s.socketOpsCommon) +} + +func init() { + state.Register((*Socket)(nil)) + state.Register((*socketOpsCommon)(nil)) + state.Register((*kernelSCM)(nil)) + state.Register((*SocketVFS2)(nil)) +} diff --git a/pkg/sentry/socket/netlink/port/BUILD b/pkg/sentry/socket/netlink/port/BUILD deleted file mode 100644 index 3a22923d8..000000000 --- a/pkg/sentry/socket/netlink/port/BUILD +++ /dev/null @@ -1,16 +0,0 @@ -load("//tools:defs.bzl", "go_library", "go_test") - -package(licenses = ["notice"]) - -go_library( - name = "port", - srcs = ["port.go"], - visibility = ["//pkg/sentry:internal"], - deps = ["//pkg/sync"], -) - -go_test( - name = "port_test", - srcs = ["port_test.go"], - library = ":port", -) diff --git a/pkg/sentry/socket/netlink/port/port_state_autogen.go b/pkg/sentry/socket/netlink/port/port_state_autogen.go new file mode 100644 index 000000000..b22471899 --- /dev/null +++ b/pkg/sentry/socket/netlink/port/port_state_autogen.go @@ -0,0 +1,36 @@ +// automatically generated by stateify. + +package port + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (m *Manager) StateTypeName() string { + return "pkg/sentry/socket/netlink/port.Manager" +} + +func (m *Manager) StateFields() []string { + return []string{ + "ports", + } +} + +func (m *Manager) beforeSave() {} + +// +checklocksignore +func (m *Manager) StateSave(stateSinkObject state.Sink) { + m.beforeSave() + stateSinkObject.Save(0, &m.ports) +} + +func (m *Manager) afterLoad() {} + +// +checklocksignore +func (m *Manager) StateLoad(stateSourceObject state.Source) { + stateSourceObject.Load(0, &m.ports) +} + +func init() { + state.Register((*Manager)(nil)) +} diff --git a/pkg/sentry/socket/netlink/port/port_test.go b/pkg/sentry/socket/netlink/port/port_test.go deleted file mode 100644 index 516f6cd6c..000000000 --- a/pkg/sentry/socket/netlink/port/port_test.go +++ /dev/null @@ -1,82 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package port - -import ( - "testing" -) - -func TestAllocateHint(t *testing.T) { - m := New() - - // We can get the hint port. - p, ok := m.Allocate(0, 1) - if !ok { - t.Errorf("m.Allocate got !ok want ok") - } - if p != 1 { - t.Errorf("m.Allocate(0, 1) got %d want 1", p) - } - - // Hint is taken. - p, ok = m.Allocate(0, 1) - if !ok { - t.Errorf("m.Allocate got !ok want ok") - } - if p == 1 { - t.Errorf("m.Allocate(0, 1) got 1 want anything else") - } - - // Hint is available for a different protocol. - p, ok = m.Allocate(1, 1) - if !ok { - t.Errorf("m.Allocate got !ok want ok") - } - if p != 1 { - t.Errorf("m.Allocate(1, 1) got %d want 1", p) - } - - m.Release(0, 1) - - // Hint is available again after release. - p, ok = m.Allocate(0, 1) - if !ok { - t.Errorf("m.Allocate got !ok want ok") - } - if p != 1 { - t.Errorf("m.Allocate(0, 1) got %d want 1", p) - } -} - -func TestAllocateExhausted(t *testing.T) { - m := New() - - // Fill all ports (0 is already reserved). - for i := int32(1); i < maxPorts; i++ { - p, ok := m.Allocate(0, i) - if !ok { - t.Fatalf("m.Allocate got !ok want ok") - } - if p != i { - t.Fatalf("m.Allocate(0, %d) got %d want %d", i, p, i) - } - } - - // Now no more can be allocated. - p, ok := m.Allocate(0, 1) - if ok { - t.Errorf("m.Allocate got %d, ok want !ok", p) - } -} diff --git a/pkg/sentry/socket/netlink/route/BUILD b/pkg/sentry/socket/netlink/route/BUILD deleted file mode 100644 index 744fc74f4..000000000 --- a/pkg/sentry/socket/netlink/route/BUILD +++ /dev/null @@ -1,21 +0,0 @@ -load("//tools:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "route", - srcs = [ - "protocol.go", - ], - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/context", - "//pkg/sentry/inet", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/auth", - "//pkg/sentry/socket/netlink", - "//pkg/syserr", - "@org_golang_x_sys//unix:go_default_library", - ], -) diff --git a/pkg/sentry/socket/netlink/route/route_state_autogen.go b/pkg/sentry/socket/netlink/route/route_state_autogen.go new file mode 100644 index 000000000..c4a94ab49 --- /dev/null +++ b/pkg/sentry/socket/netlink/route/route_state_autogen.go @@ -0,0 +1,32 @@ +// automatically generated by stateify. + +package route + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (p *Protocol) StateTypeName() string { + return "pkg/sentry/socket/netlink/route.Protocol" +} + +func (p *Protocol) StateFields() []string { + return []string{} +} + +func (p *Protocol) beforeSave() {} + +// +checklocksignore +func (p *Protocol) StateSave(stateSinkObject state.Sink) { + p.beforeSave() +} + +func (p *Protocol) afterLoad() {} + +// +checklocksignore +func (p *Protocol) StateLoad(stateSourceObject state.Source) { +} + +func init() { + state.Register((*Protocol)(nil)) +} diff --git a/pkg/sentry/socket/netlink/uevent/BUILD b/pkg/sentry/socket/netlink/uevent/BUILD deleted file mode 100644 index b6434923c..000000000 --- a/pkg/sentry/socket/netlink/uevent/BUILD +++ /dev/null @@ -1,16 +0,0 @@ -load("//tools:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "uevent", - srcs = ["protocol.go"], - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/context", - "//pkg/sentry/kernel", - "//pkg/sentry/socket/netlink", - "//pkg/syserr", - ], -) diff --git a/pkg/sentry/socket/netlink/uevent/uevent_state_autogen.go b/pkg/sentry/socket/netlink/uevent/uevent_state_autogen.go new file mode 100644 index 000000000..f45d63d9a --- /dev/null +++ b/pkg/sentry/socket/netlink/uevent/uevent_state_autogen.go @@ -0,0 +1,32 @@ +// automatically generated by stateify. + +package uevent + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (p *Protocol) StateTypeName() string { + return "pkg/sentry/socket/netlink/uevent.Protocol" +} + +func (p *Protocol) StateFields() []string { + return []string{} +} + +func (p *Protocol) beforeSave() {} + +// +checklocksignore +func (p *Protocol) StateSave(stateSinkObject state.Sink) { + p.beforeSave() +} + +func (p *Protocol) afterLoad() {} + +// +checklocksignore +func (p *Protocol) StateLoad(stateSourceObject state.Source) { +} + +func init() { + state.Register((*Protocol)(nil)) +} |