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Allow specifying TLS SNI with ?sni= in peering URI

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This commit is contained in:
Neil Alexander 2021-07-28 22:11:20 +01:00
parent b333c7d7f3
commit d8df9755f2
3 changed files with 10 additions and 5 deletions
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1
src/core/link.go
View File

@ -98,6 +98,7 @@ func (l *links) call(u *url.URL, sintf string) error {
l.tcp.call(pathtokens[0], tcpOpts, sintf)
case "tls":
tcpOpts.upgrade = l.tcp.tls.forDialer
tcpOpts.tlsSNI = u.Query().Get("sni")
l.tcp.call(u.Host, tcpOpts, sintf)
default:
return errors.New("unknown call scheme: " + u.Scheme)

1
src/core/tcp.go
View File

@ -64,6 +64,7 @@ type tcpOptions struct {
socksProxyAddr string
socksProxyAuth *proxy.Auth
socksPeerAddr string
tlsSNI string
}
func (l *TcpListener) Stop() {

13
src/core/tls.go
View File

@ -77,8 +77,8 @@ func (t *tcptls) init(tcp *tcp) {
}
}
func (t *tcptls) configForOptions(options *tcpOptions) *tls.Config {
config := *t.config
func (t *tcptls) configForOptions(options *tcpOptions, serverName string) *tls.Config {
config := t.config.Clone()
config.VerifyPeerCertificate = func(rawCerts [][]byte, _ [][]*x509.Certificate) error {
if len(rawCerts) != 1 {
return errors.New("tls not exactly 1 cert")
@ -103,11 +103,14 @@ func (t *tcptls) configForOptions(options *tcpOptions) *tls.Config {
}
return nil
}
return &config
if serverName != "" {
config.ServerName = serverName
}
return config
}
func (t *tcptls) upgradeListener(c net.Conn, options *tcpOptions) (net.Conn, error) {
config := t.configForOptions(options)
config := t.configForOptions(options, "")
conn := tls.Server(c, config)
if err := conn.Handshake(); err != nil {
return c, err
@ -116,7 +119,7 @@ func (t *tcptls) upgradeListener(c net.Conn, options *tcpOptions) (net.Conn, err
}
func (t *tcptls) upgradeDialer(c net.Conn, options *tcpOptions) (net.Conn, error) {
config := t.configForOptions(options)
config := t.configForOptions(options, options.tlsSNI)
conn := tls.Client(c, config)
if err := conn.Handshake(); err != nil {
return c, err