yggdrasil-network/yggdrasil-go
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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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13
src/core/tls.go
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@ -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