mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-12-01 19:06:43 +00:00
113 lines
3.1 KiB
Go
113 lines
3.1 KiB
Go
package libbox
|
|
|
|
import (
|
|
"context"
|
|
"net/netip"
|
|
"syscall"
|
|
|
|
"github.com/sagernet/sing-box"
|
|
"github.com/sagernet/sing-box/common/process"
|
|
"github.com/sagernet/sing-box/experimental/libbox/internal/procfs"
|
|
"github.com/sagernet/sing-box/experimental/libbox/platform"
|
|
"github.com/sagernet/sing-box/option"
|
|
"github.com/sagernet/sing-tun"
|
|
"github.com/sagernet/sing/common/control"
|
|
E "github.com/sagernet/sing/common/exceptions"
|
|
N "github.com/sagernet/sing/common/network"
|
|
)
|
|
|
|
type BoxService struct {
|
|
ctx context.Context
|
|
cancel context.CancelFunc
|
|
instance *box.Box
|
|
}
|
|
|
|
func NewService(configContent string, platformInterface PlatformInterface) (*BoxService, error) {
|
|
options, err := parseConfig(configContent)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
instance, err := box.New(ctx, options, &platformInterfaceWrapper{platformInterface, platformInterface.UseProcFS()})
|
|
if err != nil {
|
|
cancel()
|
|
return nil, E.Cause(err, "create service")
|
|
}
|
|
return &BoxService{
|
|
ctx: ctx,
|
|
cancel: cancel,
|
|
instance: instance,
|
|
}, nil
|
|
}
|
|
|
|
func (s *BoxService) Start() error {
|
|
return s.instance.Start()
|
|
}
|
|
|
|
func (s *BoxService) Close() error {
|
|
s.cancel()
|
|
return s.instance.Close()
|
|
}
|
|
|
|
var _ platform.Interface = (*platformInterfaceWrapper)(nil)
|
|
|
|
type platformInterfaceWrapper struct {
|
|
iif PlatformInterface
|
|
useProcFS bool
|
|
}
|
|
|
|
func (w *platformInterfaceWrapper) AutoDetectInterfaceControl() control.Func {
|
|
return func(network, address string, conn syscall.RawConn) error {
|
|
return control.Raw(conn, func(fd uintptr) error {
|
|
return w.iif.AutoDetectInterfaceControl(int32(fd))
|
|
})
|
|
}
|
|
}
|
|
|
|
func (w *platformInterfaceWrapper) OpenTun(options tun.Options, platformOptions option.TunPlatformOptions) (tun.Tun, error) {
|
|
if len(options.IncludeUID) > 0 || len(options.ExcludeUID) > 0 {
|
|
return nil, E.New("android: unsupported uid options")
|
|
}
|
|
if len(options.IncludeAndroidUser) > 0 {
|
|
return nil, E.New("android: unsupported android_user option")
|
|
}
|
|
tunFd, err := w.iif.OpenTun(&tunOptions{options, platformOptions})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
options.FileDescriptor = int(tunFd)
|
|
return tun.New(options)
|
|
}
|
|
|
|
func (w *platformInterfaceWrapper) Write(p []byte) (n int, err error) {
|
|
w.iif.WriteLog(string(p))
|
|
return len(p), nil
|
|
}
|
|
|
|
func (w *platformInterfaceWrapper) FindProcessInfo(ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*process.Info, error) {
|
|
var uid int32
|
|
if w.useProcFS {
|
|
uid = procfs.ResolveSocketByProcSearch(network, source, destination)
|
|
if uid == -1 {
|
|
return nil, E.New("procfs: not found")
|
|
}
|
|
} else {
|
|
var ipProtocol int32
|
|
switch N.NetworkName(network) {
|
|
case N.NetworkTCP:
|
|
ipProtocol = syscall.IPPROTO_TCP
|
|
case N.NetworkUDP:
|
|
ipProtocol = syscall.IPPROTO_UDP
|
|
default:
|
|
return nil, E.New("unknown network: ", network)
|
|
}
|
|
var err error
|
|
uid, err = w.iif.FindConnectionOwner(ipProtocol, source.Addr().String(), int32(source.Port()), destination.Addr().String(), int32(destination.Port()))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
packageName, _ := w.iif.PackageNameByUid(uid)
|
|
return &process.Info{UserId: uid, PackageName: packageName}, nil
|
|
}
|