summaryrefslogtreecommitdiffhomepage
path: root/pkg/sentry/socket/netlink
diff options
context:
space:
mode:
Diffstat (limited to 'pkg/sentry/socket/netlink')
-rw-r--r--pkg/sentry/socket/netlink/BUILD52
-rw-r--r--pkg/sentry/socket/netlink/message_test.go312
-rw-r--r--pkg/sentry/socket/netlink/netlink_state_autogen.go64
-rw-r--r--pkg/sentry/socket/netlink/port/BUILD16
-rw-r--r--pkg/sentry/socket/netlink/port/port_state_autogen.go22
-rw-r--r--pkg/sentry/socket/netlink/port/port_test.go82
-rw-r--r--pkg/sentry/socket/netlink/route/BUILD20
-rw-r--r--pkg/sentry/socket/netlink/route/route_state_autogen.go20
-rw-r--r--pkg/sentry/socket/netlink/uevent/BUILD16
-rw-r--r--pkg/sentry/socket/netlink/uevent/uevent_state_autogen.go20
10 files changed, 126 insertions, 498 deletions
diff --git a/pkg/sentry/socket/netlink/BUILD b/pkg/sentry/socket/netlink/BUILD
deleted file mode 100644
index d5ca3ac56..000000000
--- a/pkg/sentry/socket/netlink/BUILD
+++ /dev/null
@@ -1,52 +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/sentry/arch",
- "//pkg/sentry/device",
- "//pkg/sentry/fs",
- "//pkg/sentry/fs/fsutil",
- "//pkg/sentry/fs/lock",
- "//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..fa6a7ce74
--- /dev/null
+++ b/pkg/sentry/socket/netlink/netlink_state_autogen.go
@@ -0,0 +1,64 @@
+// automatically generated by stateify.
+
+package netlink
+
+import (
+ "gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *Socket) beforeSave() {}
+func (x *Socket) save(m state.Map) {
+ x.beforeSave()
+ m.Save("socketOpsCommon", &x.socketOpsCommon)
+}
+
+func (x *Socket) afterLoad() {}
+func (x *Socket) load(m state.Map) {
+ m.Load("socketOpsCommon", &x.socketOpsCommon)
+}
+
+func (x *socketOpsCommon) beforeSave() {}
+func (x *socketOpsCommon) save(m state.Map) {
+ x.beforeSave()
+ m.Save("SendReceiveTimeout", &x.SendReceiveTimeout)
+ m.Save("ports", &x.ports)
+ m.Save("protocol", &x.protocol)
+ m.Save("skType", &x.skType)
+ m.Save("ep", &x.ep)
+ m.Save("connection", &x.connection)
+ m.Save("bound", &x.bound)
+ m.Save("portID", &x.portID)
+ m.Save("sendBufferSize", &x.sendBufferSize)
+ m.Save("passcred", &x.passcred)
+ m.Save("filter", &x.filter)
+}
+
+func (x *socketOpsCommon) afterLoad() {}
+func (x *socketOpsCommon) load(m state.Map) {
+ m.Load("SendReceiveTimeout", &x.SendReceiveTimeout)
+ m.Load("ports", &x.ports)
+ m.Load("protocol", &x.protocol)
+ m.Load("skType", &x.skType)
+ m.Load("ep", &x.ep)
+ m.Load("connection", &x.connection)
+ m.Load("bound", &x.bound)
+ m.Load("portID", &x.portID)
+ m.Load("sendBufferSize", &x.sendBufferSize)
+ m.Load("passcred", &x.passcred)
+ m.Load("filter", &x.filter)
+}
+
+func (x *kernelSCM) beforeSave() {}
+func (x *kernelSCM) save(m state.Map) {
+ x.beforeSave()
+}
+
+func (x *kernelSCM) afterLoad() {}
+func (x *kernelSCM) load(m state.Map) {
+}
+
+func init() {
+ state.Register("pkg/sentry/socket/netlink.Socket", (*Socket)(nil), state.Fns{Save: (*Socket).save, Load: (*Socket).load})
+ state.Register("pkg/sentry/socket/netlink.socketOpsCommon", (*socketOpsCommon)(nil), state.Fns{Save: (*socketOpsCommon).save, Load: (*socketOpsCommon).load})
+ state.Register("pkg/sentry/socket/netlink.kernelSCM", (*kernelSCM)(nil), state.Fns{Save: (*kernelSCM).save, Load: (*kernelSCM).load})
+}
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..c509cc7d5
--- /dev/null
+++ b/pkg/sentry/socket/netlink/port/port_state_autogen.go
@@ -0,0 +1,22 @@
+// automatically generated by stateify.
+
+package port
+
+import (
+ "gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *Manager) beforeSave() {}
+func (x *Manager) save(m state.Map) {
+ x.beforeSave()
+ m.Save("ports", &x.ports)
+}
+
+func (x *Manager) afterLoad() {}
+func (x *Manager) load(m state.Map) {
+ m.Load("ports", &x.ports)
+}
+
+func init() {
+ state.Register("pkg/sentry/socket/netlink/port.Manager", (*Manager)(nil), state.Fns{Save: (*Manager).save, Load: (*Manager).load})
+}
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 93127398d..000000000
--- a/pkg/sentry/socket/netlink/route/BUILD
+++ /dev/null
@@ -1,20 +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",
- ],
-)
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..bd10fe189
--- /dev/null
+++ b/pkg/sentry/socket/netlink/route/route_state_autogen.go
@@ -0,0 +1,20 @@
+// automatically generated by stateify.
+
+package route
+
+import (
+ "gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *Protocol) beforeSave() {}
+func (x *Protocol) save(m state.Map) {
+ x.beforeSave()
+}
+
+func (x *Protocol) afterLoad() {}
+func (x *Protocol) load(m state.Map) {
+}
+
+func init() {
+ state.Register("pkg/sentry/socket/netlink/route.Protocol", (*Protocol)(nil), state.Fns{Save: (*Protocol).save, Load: (*Protocol).load})
+}
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..b82dddf32
--- /dev/null
+++ b/pkg/sentry/socket/netlink/uevent/uevent_state_autogen.go
@@ -0,0 +1,20 @@
+// automatically generated by stateify.
+
+package uevent
+
+import (
+ "gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *Protocol) beforeSave() {}
+func (x *Protocol) save(m state.Map) {
+ x.beforeSave()
+}
+
+func (x *Protocol) afterLoad() {}
+func (x *Protocol) load(m state.Map) {
+}
+
+func init() {
+ state.Register("pkg/sentry/socket/netlink/uevent.Protocol", (*Protocol)(nil), state.Fns{Save: (*Protocol).save, Load: (*Protocol).load})
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 16:00:31 +0000