sing-box/common/tls/system_client_engine.go
2026-05-15 07:58:46 +08:00

109 lines
3.4 KiB
Go

//go:build (darwin && cgo) || windows
package tls
import (
"context"
"net"
"os"
"time"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/option"
E "github.com/sagernet/sing/common/exceptions"
"github.com/sagernet/sing/common/ntp"
)
type systemTLSConfig struct {
serverName string
nextProtos []string
handshakeTimeout time.Duration
minVersion uint16
maxVersion uint16
insecure bool
anchorOnly bool
certificatePublicKeySHA256 [][]byte
timeFunc func() time.Time
store adapter.CertificateStore
}
func (c *systemTLSConfig) ServerName() string {
return c.serverName
}
func (c *systemTLSConfig) SetServerName(serverName string) {
c.serverName = serverName
}
func (c *systemTLSConfig) NextProtos() []string {
return c.nextProtos
}
func (c *systemTLSConfig) SetNextProtos(nextProto []string) {
c.nextProtos = append([]string(nil), nextProto...)
}
func (c *systemTLSConfig) HandshakeTimeout() time.Duration {
return c.handshakeTimeout
}
func (c *systemTLSConfig) SetHandshakeTimeout(timeout time.Duration) {
c.handshakeTimeout = timeout
}
func (c *systemTLSConfig) STDConfig() (*STDConfig, error) {
return nil, E.New("STDConfig is unsupported for the system TLS engine")
}
func (c *systemTLSConfig) Client(conn net.Conn) (Conn, error) {
return nil, os.ErrInvalid
}
func (c *systemTLSConfig) clone() systemTLSConfig {
return systemTLSConfig{
serverName: c.serverName,
nextProtos: append([]string(nil), c.nextProtos...),
handshakeTimeout: c.handshakeTimeout,
minVersion: c.minVersion,
maxVersion: c.maxVersion,
insecure: c.insecure,
anchorOnly: c.anchorOnly,
certificatePublicKeySHA256: append([][]byte(nil), c.certificatePublicKeySHA256...),
timeFunc: c.timeFunc,
store: c.store,
}
}
func newSystemTLSConfig(ctx context.Context, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool, engineName string) (systemTLSConfig, SystemTLSValidated, error) {
validated, err := ValidateSystemTLSOptions(ctx, options, engineName)
if err != nil {
return systemTLSConfig{}, SystemTLSValidated{}, err
}
var serverName string
if options.ServerName != "" {
serverName = options.ServerName
} else if serverAddress != "" {
serverName = serverAddress
}
if serverName == "" && !options.Insecure && !allowEmptyServerName {
return systemTLSConfig{}, SystemTLSValidated{}, errMissingServerName
}
handshakeTimeout := C.TCPTimeout
if options.HandshakeTimeout > 0 {
handshakeTimeout = options.HandshakeTimeout.Build()
}
return systemTLSConfig{
serverName: serverName,
nextProtos: append([]string(nil), options.ALPN...),
handshakeTimeout: handshakeTimeout,
minVersion: validated.MinVersion,
maxVersion: validated.MaxVersion,
insecure: options.Insecure || len(options.CertificatePublicKeySHA256) > 0,
anchorOnly: validated.Exclusive,
certificatePublicKeySHA256: append([][]byte(nil), options.CertificatePublicKeySHA256...),
timeFunc: ntp.TimeFuncFromContext(ctx),
store: validated.Store,
}, validated, nil
}