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-rw-r--r--tunnel/tools/libwg-go/.gitignore3
-rw-r--r--tunnel/tools/libwg-go/Makefile27
-rw-r--r--tunnel/tools/libwg-go/api-android.go29
-rw-r--r--tunnel/tools/libwg-go/jni.c13
-rw-r--r--tunnel/tools/libwg-go/service.go76
5 files changed, 142 insertions, 6 deletions
diff --git a/tunnel/tools/libwg-go/.gitignore b/tunnel/tools/libwg-go/.gitignore
index d1638636..d69ee823 100644
--- a/tunnel/tools/libwg-go/.gitignore
+++ b/tunnel/tools/libwg-go/.gitignore
@@ -1 +1,2 @@
-build/ \ No newline at end of file
+build/
+/gen/
diff --git a/tunnel/tools/libwg-go/Makefile b/tunnel/tools/libwg-go/Makefile
index f1936e1d..ff907fdf 100644
--- a/tunnel/tools/libwg-go/Makefile
+++ b/tunnel/tools/libwg-go/Makefile
@@ -19,6 +19,7 @@ export CGO_LDFLAGS := $(CLANG_FLAGS) $(patsubst -Wl$(comma)--build-id=%,-Wl$(com
export GOARCH := $(NDK_GO_ARCH_MAP_$(ANDROID_ARCH_NAME))
export GOOS := android
export CGO_ENABLED := 1
+export GOPATH ?= $(HOME)/go
GO_VERSION := 1.20.3
GO_PLATFORM := $(shell uname -s | tr '[:upper:]' '[:lower:]')-$(NDK_GO_ARCH_MAP_$(shell uname -m))
@@ -27,6 +28,13 @@ GO_HASH_darwin-amd64 := c1e1161d6d859deb576e6cfabeb40e3d042ceb1c6f444f617c3c9d76
GO_HASH_darwin-arm64 := 86b0ed0f2b2df50fa8036eea875d1cf2d76cefdacf247c44639a1464b7e36b95
GO_HASH_linux-amd64 := 979694c2c25c735755bf26f4f45e19e64e4811d661dd07b8c010f7a8e18adfca
+PROTOC_VERSION := 3.22.4
+PROTOC_GEN_GO := $(GOPATH)/bin/protoc-gen-go
+PROTOC := $(GRADLE_USER_HOME)/caches/protoc-bin-$(PROTOC_VERSION)/protoc
+PROTODIR = $(CURDIR)/../../src/main/proto
+PROTO_INCLUDEDIR = $(CURDIR)/../../build/extracted-include-protos/debug
+PBDIR = $(GOPATH)/pkg/mod
+
default: $(DESTDIR)/libwg-go.so
$(GRADLE_USER_HOME)/caches/golang/$(GO_TARBALL):
@@ -45,8 +53,25 @@ $(BUILDDIR)/go-$(GO_VERSION)/.prepared: $(GRADLE_USER_HOME)/caches/golang/$(GO_T
patch -p1 -f -N -r- -d "$(dir $@)" < goruntime-boottime-over-monotonic.diff && \
touch "$@"'
+$(PROTOC_GEN_GO): export GOARCH :=
+$(PROTOC_GEN_GO): export GOOS :=
+$(PROTOC_GEN_GO): export PATH := $(BUILDDIR)/go-$(GO_VERSION)/bin/:$(PATH)
+$(PROTOC_GEN_GO): $(BUILDDIR)/go-$(GO_VERSION)/.prepared Makefile
+ go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28
+ go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2
+
+gen/%.pb.go: export PATH := $(GOPATH)/bin:$(PATH)
+gen/%.pb.go: $(PROTODIR)/%.proto $(BUILDDIR)/go-$(GO_VERSION)/.prepared $(PROTOC_GEN_GO)
+ test -d gen || mkdir gen
+ $(PROTOC) -I $(PROTODIR) -I $(PROTO_INCLUDEDIR) --go_out=paths=source_relative:./gen $<
+
+gen/%_grpc.pb.go: export PATH := $(GOPATH)/bin:$(PATH)
+gen/%_grpc.pb.go: $(PROTODIR)/%.proto $(BUILDDIR)/go-$(GO_VERSION)/.prepared $(PROTOC_GEN_GO)
+ test -d gen || mkdir gen
+ $(PROTOC) -I $(PROTODIR) -I $(PROTO_INCLUDEDIR) --go-grpc_out=./gen --go-grpc_opt=paths=source_relative $<
+
$(DESTDIR)/libwg-go.so: export PATH := $(BUILDDIR)/go-$(GO_VERSION)/bin/:$(PATH)
-$(DESTDIR)/libwg-go.so: $(BUILDDIR)/go-$(GO_VERSION)/.prepared go.mod
+$(DESTDIR)/libwg-go.so: $(BUILDDIR)/go-$(GO_VERSION)/.prepared go.mod api-android.go service.go gen/libwg.pb.go gen/libwg_grpc.pb.go jni.c
go build -tags linux -ldflags="-X golang.zx2c4.com/wireguard/ipc.socketDirectory=/data/data/$(ANDROID_PACKAGE_NAME)/cache/wireguard -buildid=" -v -trimpath -buildvcs=false -o "$@" -buildmode c-shared
.DELETE_ON_ERROR:
diff --git a/tunnel/tools/libwg-go/api-android.go b/tunnel/tools/libwg-go/api-android.go
index d4e36480..484a89b0 100644
--- a/tunnel/tools/libwg-go/api-android.go
+++ b/tunnel/tools/libwg-go/api-android.go
@@ -48,6 +48,7 @@ func (l AndroidLogger) Printf(format string, args ...interface{}) {
type TunnelHandle struct {
device *device.Device
uapi net.Listener
+ logger *device.Logger
}
var tunnelHandles map[int32]TunnelHandle
@@ -208,20 +209,40 @@ func wgGetConfig(tunnelHandle int32) *C.char {
//export wgVersion
func wgVersion() *C.char {
+ return C.CString(Version())
+}
+
+func Version() string {
info, ok := debug.ReadBuildInfo()
if !ok {
- return C.CString("unknown")
+ return "unknown"
}
for _, dep := range info.Deps {
if dep.Path == "golang.zx2c4.com/wireguard" {
parts := strings.Split(dep.Version, "-")
if len(parts) == 3 && len(parts[2]) == 12 {
- return C.CString(parts[2][:7])
+ return parts[2][:7]
}
- return C.CString(dep.Version)
+ return dep.Version
}
}
- return C.CString("unknown")
+ return "unknown"
+}
+
+//export wgStartGrpc
+func wgStartGrpc(sock_path string) C.int{
+ tag := cstring("WireGuard/GoBackend/gRPC")
+ logger := &device.Logger{
+ Verbosef: AndroidLogger{level: C.ANDROID_LOG_DEBUG, tag: tag}.Printf,
+ Errorf: AndroidLogger{level: C.ANDROID_LOG_ERROR, tag: tag}.Printf,
+ }
+
+ res, errmsg := StartGrpc(sock_path, logger)
+ if res < 0 {
+ logger.Verbosef("wgStartGrpc: %v (%v)", errmsg, res)
+ }
+
+ return C.int(res)
}
//export wgSetConfig
diff --git a/tunnel/tools/libwg-go/jni.c b/tunnel/tools/libwg-go/jni.c
index e47b0be5..b386579c 100644
--- a/tunnel/tools/libwg-go/jni.c
+++ b/tunnel/tools/libwg-go/jni.c
@@ -15,6 +15,7 @@ extern int wgGetSocketV6(int handle);
extern char *wgGetConfig(int handle);
extern char *wgVersion();
extern int wgSetConfig(int handle, struct go_string settings);
+extern int wgStartGrpc();
JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgTurnOn(JNIEnv *env, jclass c, jstring ifname, jint tun_fd, jstring settings)
{
@@ -82,3 +83,15 @@ JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgSetConfig(
(*env)->ReleaseStringUTFChars(env, settings, settings_str);
return ret;
}
+
+JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgStartGrpc(JNIEnv *env, jclass c, jstring sockname)
+{
+ const char *sockname_str = (*env)->GetStringUTFChars(env, sockname, 0);
+ size_t sockname_len = (*env)->GetStringUTFLength(env, sockname);
+ jint res = wgStartGrpc((struct go_string){
+ .str = sockname_str,
+ .n = sockname_len
+ });
+ (*env)->ReleaseStringUTFChars(env, sockname, sockname_str);
+ return res;
+}
diff --git a/tunnel/tools/libwg-go/service.go b/tunnel/tools/libwg-go/service.go
new file mode 100644
index 00000000..2a0dfb2d
--- /dev/null
+++ b/tunnel/tools/libwg-go/service.go
@@ -0,0 +1,76 @@
+package main
+
+import (
+ "context"
+ "fmt"
+ "net"
+ "os"
+
+ "google.golang.org/grpc"
+
+ gen "golang.zx2c4.com/wireguard/android/gen"
+ "golang.zx2c4.com/wireguard/device"
+)
+
+type LibwgServiceImpl struct {
+ gen.UnimplementedLibwgServer
+ logger *device.Logger
+}
+
+var _ gen.LibwgServer = (*LibwgServiceImpl)(nil)
+var server *grpc.Server
+
+func NewLibwgService(logger *device.Logger) gen.LibwgServer {
+ return &LibwgServiceImpl{logger: logger}
+}
+
+func StartGrpc(sock_path string, logger *device.Logger) (int, string) {
+ if server != nil {
+ return -1, "Already started"
+ }
+
+ if _, err := os.Stat(sock_path); err == nil {
+ if err := os.RemoveAll(sock_path); err != nil {
+ return -1, fmt.Sprintf("Cleanup failed: %v %v", sock_path, err)
+ }
+ }
+
+ listener, err := net.Listen("unix", sock_path)
+ if err != nil {
+ return -1, fmt.Sprintf("Listen failed: %v %v", sock_path, err)
+ }
+
+ server = grpc.NewServer()
+ service := NewLibwgService(logger)
+
+ gen.RegisterLibwgServer(server, service)
+
+ go func() {
+ server.Serve(listener)
+ }()
+
+ logger.Verbosef("gRPC started")
+
+ return 0, ""
+}
+
+func (e *LibwgServiceImpl) Version(ctx context.Context, req *gen.VersionRequest) (*gen.VersionResponse, error) {
+
+ r := &gen.VersionResponse{
+ Version: Version(),
+ }
+
+ return r, nil
+}
+
+func (e *LibwgServiceImpl) StopGrpc(ctx context.Context, req *gen.StopGrpcRequest) (*gen.StopGrpcResponse, error) {
+ if server != nil {
+ server.Stop()
+ server = nil
+ }
+
+ r := &gen.StopGrpcResponse{
+ }
+
+ return r, nil
+}