stateify: convert all packages to use explicit mode.

PiperOrigin-RevId: 207007153
Change-Id: Ifedf1cc3758dc18be16647a4ece9c840c1c636c9

16 files changed, 33 insertions, 114 deletions

diff --git a/pkg/sentry/socket/BUILD b/pkg/sentry/socket/BUILD
index 929787aa0..a320fca0b 100644
--- a/pkg/sentry/socket/BUILD
+++ b/pkg/sentry/socket/BUILD
@@ -1,22 +1,10 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "socket_state",
-    srcs = [
-        "socket.go",
-    ],
-    out = "socket_state_autogen.go",
-    package = "socket",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "socket",
-    srcs = [
-        "socket.go",
-        "socket_state_autogen.go",
-    ],
+    srcs = ["socket.go"],
     importpath = "gvisor.googlesource.com/gvisor/pkg/sentry/socket",
     visibility = ["//pkg/sentry:internal"],
     deps = [
@@ -29,7 +17,6 @@ go_library(
         "//pkg/sentry/kernel/kdefs",
         "//pkg/sentry/kernel/time",
         "//pkg/sentry/usermem",
-        "//pkg/state",
         "//pkg/syserr",
         "//pkg/tcpip",
         "//pkg/tcpip/transport/unix",
diff --git a/pkg/sentry/socket/control/BUILD b/pkg/sentry/socket/control/BUILD
index faf2b4c27..c4874fdfb 100644
--- a/pkg/sentry/socket/control/BUILD
+++ b/pkg/sentry/socket/control/BUILD
@@ -1,26 +1,14 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "control_state",
-    srcs = [
-        "control.go",
-    ],
-    out = "control_state.go",
-    imports = [
-        "gvisor.googlesource.com/gvisor/pkg/sentry/fs",
-    ],
-    package = "control",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "control",
-    srcs = [
-        "control.go",
-        "control_state.go",
-    ],
+    srcs = ["control.go"],
     importpath = "gvisor.googlesource.com/gvisor/pkg/sentry/socket/control",
+    imports = [
+        "gvisor.googlesource.com/gvisor/pkg/sentry/fs",
+    ],
     visibility = ["//pkg/sentry:internal"],
     deps = [
         "//pkg/abi/linux",
@@ -31,7 +19,6 @@ go_library(
         "//pkg/sentry/kernel/auth",
         "//pkg/sentry/kernel/kdefs",
         "//pkg/sentry/usermem",
-        "//pkg/state",
         "//pkg/syserror",
         "//pkg/tcpip/transport/unix",
     ],
diff --git a/pkg/sentry/socket/control/control.go b/pkg/sentry/socket/control/control.go
index 17ecdd11c..c31182e69 100644
--- a/pkg/sentry/socket/control/control.go
+++ b/pkg/sentry/socket/control/control.go
@@ -51,6 +51,8 @@ type SCMRights interface {
 // RightsFiles represents a SCM_RIGHTS socket control message. A reference is
 // maintained for each fs.File and is release either when an FD is created or
 // when the Release method is called.
+//
+// +stateify savable
 type RightsFiles []*fs.File
 
 // NewSCMRights creates a new SCM_RIGHTS socket control message representation
@@ -128,6 +130,8 @@ func PackRights(t *kernel.Task, rights SCMRights, cloexec bool, buf []byte) []by
 }
 
 // scmCredentials represents an SCM_CREDENTIALS socket control message.
+//
+// +stateify savable
 type scmCredentials struct {
 	t    *kernel.Task
 	kuid auth.KUID
diff --git a/pkg/sentry/socket/epsocket/BUILD b/pkg/sentry/socket/epsocket/BUILD
index 7ad5e88c5..49af8db85 100644
--- a/pkg/sentry/socket/epsocket/BUILD
+++ b/pkg/sentry/socket/epsocket/BUILD
@@ -1,24 +1,12 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "epsocket_state",
-    srcs = [
-        "epsocket.go",
-        "save_restore.go",
-        "stack.go",
-    ],
-    out = "epsocket_state.go",
-    package = "epsocket",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "epsocket",
     srcs = [
         "device.go",
         "epsocket.go",
-        "epsocket_state.go",
         "provider.go",
         "save_restore.go",
         "stack.go",
@@ -31,7 +19,6 @@ go_library(
         "//pkg/abi/linux",
         "//pkg/binary",
         "//pkg/log",
-        "//pkg/refs",
         "//pkg/sentry/arch",
         "//pkg/sentry/context",
         "//pkg/sentry/device",
@@ -44,7 +31,6 @@ go_library(
         "//pkg/sentry/safemem",
         "//pkg/sentry/socket",
         "//pkg/sentry/usermem",
-        "//pkg/state",
         "//pkg/syserr",
         "//pkg/syserror",
         "//pkg/tcpip",
diff --git a/pkg/sentry/socket/epsocket/epsocket.go b/pkg/sentry/socket/epsocket/epsocket.go
index a2927e1b9..f969a1d7c 100644
--- a/pkg/sentry/socket/epsocket/epsocket.go
+++ b/pkg/sentry/socket/epsocket/epsocket.go
@@ -95,6 +95,8 @@ type commonEndpoint interface {
 
 // SocketOperations encapsulates all the state needed to represent a network stack
 // endpoint in the kernel context.
+//
+// +stateify savable
 type SocketOperations struct {
 	socket.ReceiveTimeout
 	fsutil.PipeSeek      `state:"nosave"`
diff --git a/pkg/sentry/socket/epsocket/stack.go b/pkg/sentry/socket/epsocket/stack.go
index ec1d96ccb..12b4b4767 100644
--- a/pkg/sentry/socket/epsocket/stack.go
+++ b/pkg/sentry/socket/epsocket/stack.go
@@ -26,6 +26,8 @@ import (
 )
 
 // Stack implements inet.Stack for netstack/tcpip/stack.Stack.
+//
+// +stateify savable
 type Stack struct {
 	Stack *stack.Stack `state:"manual"`
 }
diff --git a/pkg/sentry/socket/hostinet/BUILD b/pkg/sentry/socket/hostinet/BUILD
index 227ca3926..d623718b3 100644
--- a/pkg/sentry/socket/hostinet/BUILD
+++ b/pkg/sentry/socket/hostinet/BUILD
@@ -1,24 +1,12 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "hostinet_state",
-    srcs = [
-        "save_restore.go",
-        "socket.go",
-        "stack.go",
-    ],
-    out = "hostinet_autogen_state.go",
-    package = "hostinet",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "hostinet",
     srcs = [
         "device.go",
         "hostinet.go",
-        "hostinet_autogen_state.go",
         "save_restore.go",
         "socket.go",
         "socket_unsafe.go",
@@ -42,7 +30,6 @@ go_library(
         "//pkg/sentry/safemem",
         "//pkg/sentry/socket",
         "//pkg/sentry/usermem",
-        "//pkg/state",
         "//pkg/syserr",
         "//pkg/syserror",
         "//pkg/tcpip/transport/unix",
diff --git a/pkg/sentry/socket/netlink/BUILD b/pkg/sentry/socket/netlink/BUILD
index b23a243f7..b852165f7 100644
--- a/pkg/sentry/socket/netlink/BUILD
+++ b/pkg/sentry/socket/netlink/BUILD
@@ -1,21 +1,11 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "netlink_state",
-    srcs = [
-        "socket.go",
-    ],
-    out = "netlink_state.go",
-    package = "netlink",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "netlink",
     srcs = [
         "message.go",
-        "netlink_state.go",
         "provider.go",
         "socket.go",
     ],
@@ -36,7 +26,6 @@ go_library(
         "//pkg/sentry/socket/netlink/port",
         "//pkg/sentry/socket/unix",
         "//pkg/sentry/usermem",
-        "//pkg/state",
         "//pkg/syserr",
         "//pkg/syserror",
         "//pkg/tcpip",
diff --git a/pkg/sentry/socket/netlink/port/BUILD b/pkg/sentry/socket/netlink/port/BUILD
index ba6f686e4..3a7dbc5ed 100644
--- a/pkg/sentry/socket/netlink/port/BUILD
+++ b/pkg/sentry/socket/netlink/port/BUILD
@@ -1,23 +1,12 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify", "go_test")
-
-go_stateify(
-    name = "port_state",
-    srcs = ["port.go"],
-    out = "port_state.go",
-    package = "port",
-)
+load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 
 go_library(
     name = "port",
-    srcs = [
-        "port.go",
-        "port_state.go",
-    ],
+    srcs = ["port.go"],
     importpath = "gvisor.googlesource.com/gvisor/pkg/sentry/socket/netlink/port",
     visibility = ["//pkg/sentry:internal"],
-    deps = ["//pkg/state"],
 )
 
 go_test(
diff --git a/pkg/sentry/socket/netlink/port/port.go b/pkg/sentry/socket/netlink/port/port.go
index 4ccf0b84c..1c5d4c3a5 100644
--- a/pkg/sentry/socket/netlink/port/port.go
+++ b/pkg/sentry/socket/netlink/port/port.go
@@ -32,6 +32,8 @@ import (
 const maxPorts = 10000
 
 // Manager allocates netlink port IDs.
+//
+// +stateify savable
 type Manager struct {
 	// mu protects the fields below.
 	mu sync.Mutex `state:"nosave"`
diff --git a/pkg/sentry/socket/netlink/route/BUILD b/pkg/sentry/socket/netlink/route/BUILD
index 726469fc9..e1bcfe252 100644
--- a/pkg/sentry/socket/netlink/route/BUILD
+++ b/pkg/sentry/socket/netlink/route/BUILD
@@ -1,32 +1,19 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "route_state",
-    srcs = ["protocol.go"],
-    out = "route_state.go",
-    package = "route",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "route",
-    srcs = [
-        "protocol.go",
-        "route_state.go",
-    ],
+    srcs = ["protocol.go"],
     importpath = "gvisor.googlesource.com/gvisor/pkg/sentry/socket/netlink/route",
     visibility = ["//pkg/sentry:internal"],
     deps = [
         "//pkg/abi/linux",
         "//pkg/sentry/context",
-        "//pkg/sentry/fs",
         "//pkg/sentry/inet",
         "//pkg/sentry/kernel",
         "//pkg/sentry/kernel/auth",
         "//pkg/sentry/socket/netlink",
-        "//pkg/sentry/usermem",
-        "//pkg/state",
         "//pkg/syserr",
     ],
 )
diff --git a/pkg/sentry/socket/netlink/route/protocol.go b/pkg/sentry/socket/netlink/route/protocol.go
index e8030c518..55a76e916 100644
--- a/pkg/sentry/socket/netlink/route/protocol.go
+++ b/pkg/sentry/socket/netlink/route/protocol.go
@@ -43,6 +43,8 @@ func typeKind(typ uint16) commandKind {
 }
 
 // Protocol implements netlink.Protocol.
+//
+// +stateify savable
 type Protocol struct{}
 
 var _ netlink.Protocol = (*Protocol)(nil)
diff --git a/pkg/sentry/socket/netlink/socket.go b/pkg/sentry/socket/netlink/socket.go
index 0b8f528d0..e15d1546c 100644
--- a/pkg/sentry/socket/netlink/socket.go
+++ b/pkg/sentry/socket/netlink/socket.go
@@ -51,6 +51,8 @@ var netlinkSocketDevice = device.NewAnonDevice()
 // to/from the kernel.
 //
 // Socket implements socket.Socket.
+//
+// +stateify savable
 type Socket struct {
 	socket.ReceiveTimeout
 	fsutil.PipeSeek      `state:"nosave"`
diff --git a/pkg/sentry/socket/socket.go b/pkg/sentry/socket/socket.go
index bd4858a34..54fe64595 100644
--- a/pkg/sentry/socket/socket.go
+++ b/pkg/sentry/socket/socket.go
@@ -195,6 +195,8 @@ func NewDirent(ctx context.Context, d *device.Device) *fs.Dirent {
 //
 // Care must be taken when copying ReceiveTimeout as it contains atomic
 // variables.
+//
+// +stateify savable
 type ReceiveTimeout struct {
 	// ns is length of the timeout in nanoseconds.
 	//
diff --git a/pkg/sentry/socket/unix/BUILD b/pkg/sentry/socket/unix/BUILD
index 7d04d6b6b..9fe681e9a 100644
--- a/pkg/sentry/socket/unix/BUILD
+++ b/pkg/sentry/socket/unix/BUILD
@@ -1,15 +1,6 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "unix_state",
-    srcs = [
-        "unix.go",
-    ],
-    out = "unix_state.go",
-    package = "unix",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "unix",
@@ -17,7 +8,6 @@ go_library(
         "device.go",
         "io.go",
         "unix.go",
-        "unix_state.go",
     ],
     importpath = "gvisor.googlesource.com/gvisor/pkg/sentry/socket/unix",
     visibility = ["//pkg/sentry:internal"],
@@ -37,7 +27,6 @@ go_library(
         "//pkg/sentry/socket/control",
         "//pkg/sentry/socket/epsocket",
         "//pkg/sentry/usermem",
-        "//pkg/state",
         "//pkg/syserr",
         "//pkg/syserror",
         "//pkg/tcpip",
diff --git a/pkg/sentry/socket/unix/unix.go b/pkg/sentry/socket/unix/unix.go
index 27bacbbc3..5b6411f97 100644
--- a/pkg/sentry/socket/unix/unix.go
+++ b/pkg/sentry/socket/unix/unix.go
@@ -42,6 +42,8 @@ import (
 
 // SocketOperations is a Unix socket. It is similar to an epsocket, except it is backed
 // by a unix.Endpoint instead of a tcpip.Endpoint.
+//
+// +stateify savable
 type SocketOperations struct {
 	refs.AtomicRefCount
 	socket.ReceiveTimeout