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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
}
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