diff options
Diffstat (limited to 'pkg/sentry/socket')
30 files changed, 632 insertions, 412 deletions
diff --git a/pkg/sentry/socket/BUILD b/pkg/sentry/socket/BUILD deleted file mode 100644 index 26176b10d..000000000 --- a/pkg/sentry/socket/BUILD +++ /dev/null @@ -1,24 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "socket", - srcs = ["socket.go"], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket", - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/sentry/context", - "//pkg/sentry/device", - "//pkg/sentry/fs", - "//pkg/sentry/fs/fsutil", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/time", - "//pkg/sentry/socket/unix/transport", - "//pkg/sentry/usermem", - "//pkg/syserr", - "//pkg/tcpip", - ], -) diff --git a/pkg/sentry/socket/control/BUILD b/pkg/sentry/socket/control/BUILD deleted file mode 100644 index 357517ed4..000000000 --- a/pkg/sentry/socket/control/BUILD +++ /dev/null @@ -1,25 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "control", - srcs = ["control.go"], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/control", - imports = [ - "gvisor.dev/gvisor/pkg/sentry/fs", - ], - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/sentry/context", - "//pkg/sentry/fs", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/auth", - "//pkg/sentry/socket", - "//pkg/sentry/socket/unix/transport", - "//pkg/sentry/usermem", - "//pkg/syserror", - ], -) diff --git a/pkg/sentry/socket/control/control_state_autogen.go b/pkg/sentry/socket/control/control_state_autogen.go new file mode 100755 index 000000000..c5ecfe700 --- /dev/null +++ b/pkg/sentry/socket/control/control_state_autogen.go @@ -0,0 +1,36 @@ +// automatically generated by stateify. + +package control + +import ( + "gvisor.dev/gvisor/pkg/state" + "gvisor.dev/gvisor/pkg/sentry/fs" +) + +func (x *RightsFiles) save(m state.Map) { + m.SaveValue("", ([]*fs.File)(*x)) +} + +func (x *RightsFiles) load(m state.Map) { + m.LoadValue("", new([]*fs.File), func(y interface{}) { *x = (RightsFiles)(y.([]*fs.File)) }) +} + +func (x *scmCredentials) beforeSave() {} +func (x *scmCredentials) save(m state.Map) { + x.beforeSave() + m.Save("t", &x.t) + m.Save("kuid", &x.kuid) + m.Save("kgid", &x.kgid) +} + +func (x *scmCredentials) afterLoad() {} +func (x *scmCredentials) load(m state.Map) { + m.Load("t", &x.t) + m.Load("kuid", &x.kuid) + m.Load("kgid", &x.kgid) +} + +func init() { + state.Register("control.RightsFiles", (*RightsFiles)(nil), state.Fns{Save: (*RightsFiles).save, Load: (*RightsFiles).load}) + state.Register("control.scmCredentials", (*scmCredentials)(nil), state.Fns{Save: (*scmCredentials).save, Load: (*scmCredentials).load}) +} diff --git a/pkg/sentry/socket/hostinet/BUILD b/pkg/sentry/socket/hostinet/BUILD deleted file mode 100644 index 4c44c7c0f..000000000 --- a/pkg/sentry/socket/hostinet/BUILD +++ /dev/null @@ -1,40 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "hostinet", - srcs = [ - "device.go", - "hostinet.go", - "save_restore.go", - "socket.go", - "socket_unsafe.go", - "stack.go", - ], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/hostinet", - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/fdnotifier", - "//pkg/log", - "//pkg/sentry/arch", - "//pkg/sentry/context", - "//pkg/sentry/device", - "//pkg/sentry/fs", - "//pkg/sentry/fs/fsutil", - "//pkg/sentry/inet", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/time", - "//pkg/sentry/safemem", - "//pkg/sentry/socket", - "//pkg/sentry/socket/control", - "//pkg/sentry/usermem", - "//pkg/syserr", - "//pkg/syserror", - "//pkg/tcpip/stack", - "//pkg/waiter", - "@org_golang_x_sys//unix:go_default_library", - ], -) diff --git a/pkg/sentry/socket/hostinet/hostinet_state_autogen.go b/pkg/sentry/socket/hostinet/hostinet_state_autogen.go new file mode 100755 index 000000000..0a5c7cdf3 --- /dev/null +++ b/pkg/sentry/socket/hostinet/hostinet_state_autogen.go @@ -0,0 +1,4 @@ +// automatically generated by stateify. + +package hostinet + diff --git a/pkg/sentry/socket/netfilter/BUILD b/pkg/sentry/socket/netfilter/BUILD deleted file mode 100644 index 2e581e9d2..000000000 --- a/pkg/sentry/socket/netfilter/BUILD +++ /dev/null @@ -1,24 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "netfilter", - srcs = [ - "netfilter.go", - ], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/netfilter", - # This target depends on netstack and should only be used by epsocket, - # which is allowed to depend on netstack. - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/log", - "//pkg/sentry/kernel", - "//pkg/sentry/usermem", - "//pkg/syserr", - "//pkg/tcpip/iptables", - "//pkg/tcpip/stack", - ], -) diff --git a/pkg/sentry/socket/netfilter/netfilter_state_autogen.go b/pkg/sentry/socket/netfilter/netfilter_state_autogen.go new file mode 100755 index 000000000..f3d68dd64 --- /dev/null +++ b/pkg/sentry/socket/netfilter/netfilter_state_autogen.go @@ -0,0 +1,4 @@ +// automatically generated by stateify. + +package netfilter + diff --git a/pkg/sentry/socket/netlink/BUILD b/pkg/sentry/socket/netlink/BUILD deleted file mode 100644 index 103933144..000000000 --- a/pkg/sentry/socket/netlink/BUILD +++ /dev/null @@ -1,36 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "netlink", - srcs = [ - "message.go", - "provider.go", - "socket.go", - ], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/netlink", - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/sentry/arch", - "//pkg/sentry/context", - "//pkg/sentry/device", - "//pkg/sentry/fs", - "//pkg/sentry/fs/fsutil", - "//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/usermem", - "//pkg/sync", - "//pkg/syserr", - "//pkg/syserror", - "//pkg/tcpip", - "//pkg/waiter", - ], -) diff --git a/pkg/sentry/socket/netlink/netlink_state_autogen.go b/pkg/sentry/socket/netlink/netlink_state_autogen.go new file mode 100755 index 000000000..39079575e --- /dev/null +++ b/pkg/sentry/socket/netlink/netlink_state_autogen.go @@ -0,0 +1,52 @@ +// 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("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 *Socket) afterLoad() {} +func (x *Socket) 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("netlink.Socket", (*Socket)(nil), state.Fns{Save: (*Socket).save, Load: (*Socket).load}) + state.Register("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 2d9f4ba9b..000000000 --- a/pkg/sentry/socket/netlink/port/BUILD +++ /dev/null @@ -1,18 +0,0 @@ -load("@io_bazel_rules_go//go:def.bzl", "go_test") -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "port", - srcs = ["port.go"], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/netlink/port", - visibility = ["//pkg/sentry:internal"], - deps = ["//pkg/sync"], -) - -go_test( - name = "port_test", - srcs = ["port_test.go"], - embed = [":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 100755 index 000000000..b4b4a6758 --- /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("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 1d4912753..000000000 --- a/pkg/sentry/socket/netlink/route/BUILD +++ /dev/null @@ -1,19 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "route", - srcs = ["protocol.go"], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/netlink/route", - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/sentry/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 100755 index 000000000..f4225cb3c --- /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("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 0777f3baf..000000000 --- a/pkg/sentry/socket/netlink/uevent/BUILD +++ /dev/null @@ -1,17 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "uevent", - srcs = ["protocol.go"], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/netlink/uevent", - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/sentry/context", - "//pkg/sentry/kernel", - "//pkg/sentry/socket/netlink", - "//pkg/syserr", - ], -) diff --git a/pkg/sentry/socket/netlink/uevent/protocol.go b/pkg/sentry/socket/netlink/uevent/protocol.go index b5d7808d7..b5d7808d7 100644..100755 --- a/pkg/sentry/socket/netlink/uevent/protocol.go +++ b/pkg/sentry/socket/netlink/uevent/protocol.go 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 100755 index 000000000..01a99399d --- /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("uevent.Protocol", (*Protocol)(nil), state.Fns{Save: (*Protocol).save, Load: (*Protocol).load}) +} diff --git a/pkg/sentry/socket/netstack/BUILD b/pkg/sentry/socket/netstack/BUILD deleted file mode 100644 index f78784569..000000000 --- a/pkg/sentry/socket/netstack/BUILD +++ /dev/null @@ -1,51 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "netstack", - srcs = [ - "device.go", - "netstack.go", - "provider.go", - "save_restore.go", - "stack.go", - ], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/netstack", - visibility = [ - "//pkg/sentry:internal", - ], - deps = [ - "//pkg/abi/linux", - "//pkg/binary", - "//pkg/log", - "//pkg/metric", - "//pkg/sentry/arch", - "//pkg/sentry/context", - "//pkg/sentry/device", - "//pkg/sentry/fs", - "//pkg/sentry/fs/fsutil", - "//pkg/sentry/inet", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/auth", - "//pkg/sentry/kernel/time", - "//pkg/sentry/safemem", - "//pkg/sentry/socket", - "//pkg/sentry/socket/netfilter", - "//pkg/sentry/unimpl", - "//pkg/sentry/usermem", - "//pkg/sync", - "//pkg/syserr", - "//pkg/syserror", - "//pkg/tcpip", - "//pkg/tcpip/buffer", - "//pkg/tcpip/header", - "//pkg/tcpip/iptables", - "//pkg/tcpip/network/ipv4", - "//pkg/tcpip/network/ipv6", - "//pkg/tcpip/stack", - "//pkg/tcpip/transport/tcp", - "//pkg/tcpip/transport/udp", - "//pkg/waiter", - ], -) diff --git a/pkg/sentry/socket/netstack/device.go b/pkg/sentry/socket/netstack/device.go index fbeb89fb8..fbeb89fb8 100644..100755 --- a/pkg/sentry/socket/netstack/device.go +++ b/pkg/sentry/socket/netstack/device.go diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go index 318acbeff..318acbeff 100644..100755 --- a/pkg/sentry/socket/netstack/netstack.go +++ b/pkg/sentry/socket/netstack/netstack.go diff --git a/pkg/sentry/socket/netstack/netstack_state_autogen.go b/pkg/sentry/socket/netstack/netstack_state_autogen.go new file mode 100755 index 000000000..8001792bb --- /dev/null +++ b/pkg/sentry/socket/netstack/netstack_state_autogen.go @@ -0,0 +1,56 @@ +// automatically generated by stateify. + +package netstack + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (x *SocketOperations) beforeSave() {} +func (x *SocketOperations) save(m state.Map) { + x.beforeSave() + m.Save("SendReceiveTimeout", &x.SendReceiveTimeout) + m.Save("Queue", &x.Queue) + m.Save("family", &x.family) + m.Save("Endpoint", &x.Endpoint) + m.Save("skType", &x.skType) + m.Save("protocol", &x.protocol) + m.Save("readView", &x.readView) + m.Save("readCM", &x.readCM) + m.Save("sender", &x.sender) + m.Save("sockOptTimestamp", &x.sockOptTimestamp) + m.Save("timestampValid", &x.timestampValid) + m.Save("timestampNS", &x.timestampNS) + m.Save("sockOptInq", &x.sockOptInq) +} + +func (x *SocketOperations) afterLoad() {} +func (x *SocketOperations) load(m state.Map) { + m.Load("SendReceiveTimeout", &x.SendReceiveTimeout) + m.Load("Queue", &x.Queue) + m.Load("family", &x.family) + m.Load("Endpoint", &x.Endpoint) + m.Load("skType", &x.skType) + m.Load("protocol", &x.protocol) + m.Load("readView", &x.readView) + m.Load("readCM", &x.readCM) + m.Load("sender", &x.sender) + m.Load("sockOptTimestamp", &x.sockOptTimestamp) + m.Load("timestampValid", &x.timestampValid) + m.Load("timestampNS", &x.timestampNS) + m.Load("sockOptInq", &x.sockOptInq) +} + +func (x *Stack) beforeSave() {} +func (x *Stack) save(m state.Map) { + x.beforeSave() +} + +func (x *Stack) load(m state.Map) { + m.AfterLoad(x.afterLoad) +} + +func init() { + state.Register("netstack.SocketOperations", (*SocketOperations)(nil), state.Fns{Save: (*SocketOperations).save, Load: (*SocketOperations).load}) + state.Register("netstack.Stack", (*Stack)(nil), state.Fns{Save: (*Stack).save, Load: (*Stack).load}) +} diff --git a/pkg/sentry/socket/netstack/provider.go b/pkg/sentry/socket/netstack/provider.go index 2d2c1ba2a..2d2c1ba2a 100644..100755 --- a/pkg/sentry/socket/netstack/provider.go +++ b/pkg/sentry/socket/netstack/provider.go diff --git a/pkg/sentry/socket/netstack/save_restore.go b/pkg/sentry/socket/netstack/save_restore.go index c7aaf722a..c7aaf722a 100644..100755 --- a/pkg/sentry/socket/netstack/save_restore.go +++ b/pkg/sentry/socket/netstack/save_restore.go diff --git a/pkg/sentry/socket/netstack/stack.go b/pkg/sentry/socket/netstack/stack.go index 31ea66eca..31ea66eca 100644..100755 --- a/pkg/sentry/socket/netstack/stack.go +++ b/pkg/sentry/socket/netstack/stack.go diff --git a/pkg/sentry/socket/socket_state_autogen.go b/pkg/sentry/socket/socket_state_autogen.go new file mode 100755 index 000000000..3df219247 --- /dev/null +++ b/pkg/sentry/socket/socket_state_autogen.go @@ -0,0 +1,24 @@ +// automatically generated by stateify. + +package socket + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (x *SendReceiveTimeout) beforeSave() {} +func (x *SendReceiveTimeout) save(m state.Map) { + x.beforeSave() + m.Save("send", &x.send) + m.Save("recv", &x.recv) +} + +func (x *SendReceiveTimeout) afterLoad() {} +func (x *SendReceiveTimeout) load(m state.Map) { + m.Load("send", &x.send) + m.Load("recv", &x.recv) +} + +func init() { + state.Register("socket.SendReceiveTimeout", (*SendReceiveTimeout)(nil), state.Fns{Save: (*SendReceiveTimeout).save, Load: (*SendReceiveTimeout).load}) +} diff --git a/pkg/sentry/socket/unix/BUILD b/pkg/sentry/socket/unix/BUILD deleted file mode 100644 index 5b6a154f6..000000000 --- a/pkg/sentry/socket/unix/BUILD +++ /dev/null @@ -1,35 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") - -package(licenses = ["notice"]) - -go_library( - name = "unix", - srcs = [ - "device.go", - "io.go", - "unix.go", - ], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/unix", - visibility = ["//pkg/sentry:internal"], - deps = [ - "//pkg/abi/linux", - "//pkg/refs", - "//pkg/sentry/arch", - "//pkg/sentry/context", - "//pkg/sentry/device", - "//pkg/sentry/fs", - "//pkg/sentry/fs/fsutil", - "//pkg/sentry/kernel", - "//pkg/sentry/kernel/time", - "//pkg/sentry/safemem", - "//pkg/sentry/socket", - "//pkg/sentry/socket/control", - "//pkg/sentry/socket/netstack", - "//pkg/sentry/socket/unix/transport", - "//pkg/sentry/usermem", - "//pkg/syserr", - "//pkg/syserror", - "//pkg/tcpip", - "//pkg/waiter", - ], -) diff --git a/pkg/sentry/socket/unix/transport/BUILD b/pkg/sentry/socket/unix/transport/BUILD deleted file mode 100644 index d7ba95dff..000000000 --- a/pkg/sentry/socket/unix/transport/BUILD +++ /dev/null @@ -1,41 +0,0 @@ -load("//tools/go_stateify:defs.bzl", "go_library") -load("//tools/go_generics:defs.bzl", "go_template_instance") - -package(licenses = ["notice"]) - -go_template_instance( - name = "transport_message_list", - out = "transport_message_list.go", - package = "transport", - prefix = "message", - template = "//pkg/ilist:generic_list", - types = { - "Element": "*message", - "Linker": "*message", - }, -) - -go_library( - name = "transport", - srcs = [ - "connectioned.go", - "connectioned_state.go", - "connectionless.go", - "queue.go", - "transport_message_list.go", - "unix.go", - ], - importpath = "gvisor.dev/gvisor/pkg/sentry/socket/unix/transport", - visibility = ["//:sandbox"], - deps = [ - "//pkg/abi/linux", - "//pkg/ilist", - "//pkg/refs", - "//pkg/sentry/context", - "//pkg/sync", - "//pkg/syserr", - "//pkg/tcpip", - "//pkg/tcpip/buffer", - "//pkg/waiter", - ], -) diff --git a/pkg/sentry/socket/unix/transport/transport_message_list.go b/pkg/sentry/socket/unix/transport/transport_message_list.go new file mode 100755 index 000000000..6d394860c --- /dev/null +++ b/pkg/sentry/socket/unix/transport/transport_message_list.go @@ -0,0 +1,173 @@ +package transport + +// ElementMapper provides an identity mapping by default. +// +// This can be replaced to provide a struct that maps elements to linker +// objects, if they are not the same. An ElementMapper is not typically +// required if: Linker is left as is, Element is left as is, or Linker and +// Element are the same type. +type messageElementMapper struct{} + +// linkerFor maps an Element to a Linker. +// +// This default implementation should be inlined. +// +//go:nosplit +func (messageElementMapper) linkerFor(elem *message) *message { return elem } + +// List is an intrusive list. Entries can be added to or removed from the list +// in O(1) time and with no additional memory allocations. +// +// The zero value for List is an empty list ready to use. +// +// To iterate over a list (where l is a List): +// for e := l.Front(); e != nil; e = e.Next() { +// // do something with e. +// } +// +// +stateify savable +type messageList struct { + head *message + tail *message +} + +// Reset resets list l to the empty state. +func (l *messageList) Reset() { + l.head = nil + l.tail = nil +} + +// Empty returns true iff the list is empty. +func (l *messageList) Empty() bool { + return l.head == nil +} + +// Front returns the first element of list l or nil. +func (l *messageList) Front() *message { + return l.head +} + +// Back returns the last element of list l or nil. +func (l *messageList) Back() *message { + return l.tail +} + +// PushFront inserts the element e at the front of list l. +func (l *messageList) PushFront(e *message) { + messageElementMapper{}.linkerFor(e).SetNext(l.head) + messageElementMapper{}.linkerFor(e).SetPrev(nil) + + if l.head != nil { + messageElementMapper{}.linkerFor(l.head).SetPrev(e) + } else { + l.tail = e + } + + l.head = e +} + +// PushBack inserts the element e at the back of list l. +func (l *messageList) PushBack(e *message) { + messageElementMapper{}.linkerFor(e).SetNext(nil) + messageElementMapper{}.linkerFor(e).SetPrev(l.tail) + + if l.tail != nil { + messageElementMapper{}.linkerFor(l.tail).SetNext(e) + } else { + l.head = e + } + + l.tail = e +} + +// PushBackList inserts list m at the end of list l, emptying m. +func (l *messageList) PushBackList(m *messageList) { + if l.head == nil { + l.head = m.head + l.tail = m.tail + } else if m.head != nil { + messageElementMapper{}.linkerFor(l.tail).SetNext(m.head) + messageElementMapper{}.linkerFor(m.head).SetPrev(l.tail) + + l.tail = m.tail + } + + m.head = nil + m.tail = nil +} + +// InsertAfter inserts e after b. +func (l *messageList) InsertAfter(b, e *message) { + a := messageElementMapper{}.linkerFor(b).Next() + messageElementMapper{}.linkerFor(e).SetNext(a) + messageElementMapper{}.linkerFor(e).SetPrev(b) + messageElementMapper{}.linkerFor(b).SetNext(e) + + if a != nil { + messageElementMapper{}.linkerFor(a).SetPrev(e) + } else { + l.tail = e + } +} + +// InsertBefore inserts e before a. +func (l *messageList) InsertBefore(a, e *message) { + b := messageElementMapper{}.linkerFor(a).Prev() + messageElementMapper{}.linkerFor(e).SetNext(a) + messageElementMapper{}.linkerFor(e).SetPrev(b) + messageElementMapper{}.linkerFor(a).SetPrev(e) + + if b != nil { + messageElementMapper{}.linkerFor(b).SetNext(e) + } else { + l.head = e + } +} + +// Remove removes e from l. +func (l *messageList) Remove(e *message) { + prev := messageElementMapper{}.linkerFor(e).Prev() + next := messageElementMapper{}.linkerFor(e).Next() + + if prev != nil { + messageElementMapper{}.linkerFor(prev).SetNext(next) + } else { + l.head = next + } + + if next != nil { + messageElementMapper{}.linkerFor(next).SetPrev(prev) + } else { + l.tail = prev + } +} + +// Entry is a default implementation of Linker. Users can add anonymous fields +// of this type to their structs to make them automatically implement the +// methods needed by List. +// +// +stateify savable +type messageEntry struct { + next *message + prev *message +} + +// Next returns the entry that follows e in the list. +func (e *messageEntry) Next() *message { + return e.next +} + +// Prev returns the entry that precedes e in the list. +func (e *messageEntry) Prev() *message { + return e.prev +} + +// SetNext assigns 'entry' as the entry that follows e in the list. +func (e *messageEntry) SetNext(elem *message) { + e.next = elem +} + +// SetPrev assigns 'entry' as the entry that precedes e in the list. +func (e *messageEntry) SetPrev(elem *message) { + e.prev = elem +} diff --git a/pkg/sentry/socket/unix/transport/transport_state_autogen.go b/pkg/sentry/socket/unix/transport/transport_state_autogen.go new file mode 100755 index 000000000..f4407ad29 --- /dev/null +++ b/pkg/sentry/socket/unix/transport/transport_state_autogen.go @@ -0,0 +1,193 @@ +// automatically generated by stateify. + +package transport + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (x *connectionedEndpoint) beforeSave() {} +func (x *connectionedEndpoint) save(m state.Map) { + x.beforeSave() + var acceptedChan []*connectionedEndpoint = x.saveAcceptedChan() + m.SaveValue("acceptedChan", acceptedChan) + m.Save("baseEndpoint", &x.baseEndpoint) + m.Save("id", &x.id) + m.Save("idGenerator", &x.idGenerator) + m.Save("stype", &x.stype) +} + +func (x *connectionedEndpoint) afterLoad() {} +func (x *connectionedEndpoint) load(m state.Map) { + m.Load("baseEndpoint", &x.baseEndpoint) + m.Load("id", &x.id) + m.Load("idGenerator", &x.idGenerator) + m.Load("stype", &x.stype) + m.LoadValue("acceptedChan", new([]*connectionedEndpoint), func(y interface{}) { x.loadAcceptedChan(y.([]*connectionedEndpoint)) }) +} + +func (x *connectionlessEndpoint) beforeSave() {} +func (x *connectionlessEndpoint) save(m state.Map) { + x.beforeSave() + m.Save("baseEndpoint", &x.baseEndpoint) +} + +func (x *connectionlessEndpoint) afterLoad() {} +func (x *connectionlessEndpoint) load(m state.Map) { + m.Load("baseEndpoint", &x.baseEndpoint) +} + +func (x *queue) beforeSave() {} +func (x *queue) save(m state.Map) { + x.beforeSave() + m.Save("AtomicRefCount", &x.AtomicRefCount) + m.Save("ReaderQueue", &x.ReaderQueue) + m.Save("WriterQueue", &x.WriterQueue) + m.Save("closed", &x.closed) + m.Save("unread", &x.unread) + m.Save("used", &x.used) + m.Save("limit", &x.limit) + m.Save("dataList", &x.dataList) +} + +func (x *queue) afterLoad() {} +func (x *queue) load(m state.Map) { + m.Load("AtomicRefCount", &x.AtomicRefCount) + m.Load("ReaderQueue", &x.ReaderQueue) + m.Load("WriterQueue", &x.WriterQueue) + m.Load("closed", &x.closed) + m.Load("unread", &x.unread) + m.Load("used", &x.used) + m.Load("limit", &x.limit) + m.Load("dataList", &x.dataList) +} + +func (x *messageList) beforeSave() {} +func (x *messageList) save(m state.Map) { + x.beforeSave() + m.Save("head", &x.head) + m.Save("tail", &x.tail) +} + +func (x *messageList) afterLoad() {} +func (x *messageList) load(m state.Map) { + m.Load("head", &x.head) + m.Load("tail", &x.tail) +} + +func (x *messageEntry) beforeSave() {} +func (x *messageEntry) save(m state.Map) { + x.beforeSave() + m.Save("next", &x.next) + m.Save("prev", &x.prev) +} + +func (x *messageEntry) afterLoad() {} +func (x *messageEntry) load(m state.Map) { + m.Load("next", &x.next) + m.Load("prev", &x.prev) +} + +func (x *ControlMessages) beforeSave() {} +func (x *ControlMessages) save(m state.Map) { + x.beforeSave() + m.Save("Rights", &x.Rights) + m.Save("Credentials", &x.Credentials) +} + +func (x *ControlMessages) afterLoad() {} +func (x *ControlMessages) load(m state.Map) { + m.Load("Rights", &x.Rights) + m.Load("Credentials", &x.Credentials) +} + +func (x *message) beforeSave() {} +func (x *message) save(m state.Map) { + x.beforeSave() + m.Save("messageEntry", &x.messageEntry) + m.Save("Data", &x.Data) + m.Save("Control", &x.Control) + m.Save("Address", &x.Address) +} + +func (x *message) afterLoad() {} +func (x *message) load(m state.Map) { + m.Load("messageEntry", &x.messageEntry) + m.Load("Data", &x.Data) + m.Load("Control", &x.Control) + m.Load("Address", &x.Address) +} + +func (x *queueReceiver) beforeSave() {} +func (x *queueReceiver) save(m state.Map) { + x.beforeSave() + m.Save("readQueue", &x.readQueue) +} + +func (x *queueReceiver) afterLoad() {} +func (x *queueReceiver) load(m state.Map) { + m.Load("readQueue", &x.readQueue) +} + +func (x *streamQueueReceiver) beforeSave() {} +func (x *streamQueueReceiver) save(m state.Map) { + x.beforeSave() + m.Save("queueReceiver", &x.queueReceiver) + m.Save("buffer", &x.buffer) + m.Save("control", &x.control) + m.Save("addr", &x.addr) +} + +func (x *streamQueueReceiver) afterLoad() {} +func (x *streamQueueReceiver) load(m state.Map) { + m.Load("queueReceiver", &x.queueReceiver) + m.Load("buffer", &x.buffer) + m.Load("control", &x.control) + m.Load("addr", &x.addr) +} + +func (x *connectedEndpoint) beforeSave() {} +func (x *connectedEndpoint) save(m state.Map) { + x.beforeSave() + m.Save("endpoint", &x.endpoint) + m.Save("writeQueue", &x.writeQueue) +} + +func (x *connectedEndpoint) afterLoad() {} +func (x *connectedEndpoint) load(m state.Map) { + m.Load("endpoint", &x.endpoint) + m.Load("writeQueue", &x.writeQueue) +} + +func (x *baseEndpoint) beforeSave() {} +func (x *baseEndpoint) save(m state.Map) { + x.beforeSave() + m.Save("Queue", &x.Queue) + m.Save("passcred", &x.passcred) + m.Save("receiver", &x.receiver) + m.Save("connected", &x.connected) + m.Save("path", &x.path) +} + +func (x *baseEndpoint) afterLoad() {} +func (x *baseEndpoint) load(m state.Map) { + m.Load("Queue", &x.Queue) + m.Load("passcred", &x.passcred) + m.Load("receiver", &x.receiver) + m.Load("connected", &x.connected) + m.Load("path", &x.path) +} + +func init() { + state.Register("transport.connectionedEndpoint", (*connectionedEndpoint)(nil), state.Fns{Save: (*connectionedEndpoint).save, Load: (*connectionedEndpoint).load}) + state.Register("transport.connectionlessEndpoint", (*connectionlessEndpoint)(nil), state.Fns{Save: (*connectionlessEndpoint).save, Load: (*connectionlessEndpoint).load}) + state.Register("transport.queue", (*queue)(nil), state.Fns{Save: (*queue).save, Load: (*queue).load}) + state.Register("transport.messageList", (*messageList)(nil), state.Fns{Save: (*messageList).save, Load: (*messageList).load}) + state.Register("transport.messageEntry", (*messageEntry)(nil), state.Fns{Save: (*messageEntry).save, Load: (*messageEntry).load}) + state.Register("transport.ControlMessages", (*ControlMessages)(nil), state.Fns{Save: (*ControlMessages).save, Load: (*ControlMessages).load}) + state.Register("transport.message", (*message)(nil), state.Fns{Save: (*message).save, Load: (*message).load}) + state.Register("transport.queueReceiver", (*queueReceiver)(nil), state.Fns{Save: (*queueReceiver).save, Load: (*queueReceiver).load}) + state.Register("transport.streamQueueReceiver", (*streamQueueReceiver)(nil), state.Fns{Save: (*streamQueueReceiver).save, Load: (*streamQueueReceiver).load}) + state.Register("transport.connectedEndpoint", (*connectedEndpoint)(nil), state.Fns{Save: (*connectedEndpoint).save, Load: (*connectedEndpoint).load}) + state.Register("transport.baseEndpoint", (*baseEndpoint)(nil), state.Fns{Save: (*baseEndpoint).save, Load: (*baseEndpoint).load}) +} diff --git a/pkg/sentry/socket/unix/unix_state_autogen.go b/pkg/sentry/socket/unix/unix_state_autogen.go new file mode 100755 index 000000000..86f734156 --- /dev/null +++ b/pkg/sentry/socket/unix/unix_state_autogen.go @@ -0,0 +1,28 @@ +// automatically generated by stateify. + +package unix + +import ( + "gvisor.dev/gvisor/pkg/state" +) + +func (x *SocketOperations) beforeSave() {} +func (x *SocketOperations) save(m state.Map) { + x.beforeSave() + m.Save("AtomicRefCount", &x.AtomicRefCount) + m.Save("SendReceiveTimeout", &x.SendReceiveTimeout) + m.Save("ep", &x.ep) + m.Save("stype", &x.stype) +} + +func (x *SocketOperations) afterLoad() {} +func (x *SocketOperations) load(m state.Map) { + m.Load("AtomicRefCount", &x.AtomicRefCount) + m.Load("SendReceiveTimeout", &x.SendReceiveTimeout) + m.Load("ep", &x.ep) + m.Load("stype", &x.stype) +} + +func init() { + state.Register("unix.SocketOperations", (*SocketOperations)(nil), state.Fns{Save: (*SocketOperations).save, Load: (*SocketOperations).load}) +} |