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TLS: Force connection failed if ApplyECH failed

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Fangliding 2025-07-26 21:15:59 +08:00
parent b6b51c51c8
commit 115825f65c
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GPG key ID: 67746ECEFA41C2B4
1 changed files with 8 additions and 2 deletions
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10
transport/internet/tls/ech.go
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@ -34,6 +34,13 @@ func ApplyECH(c *Config, config *tls.Config) error {
// for client // for client
if len(c.EchConfigList) != 0 { if len(c.EchConfigList) != 0 {
defer func() {
// if failed to get ECHConfig, use an invalid one to make connection fail
if err != nil {
ECHConfig = []byte{1, 1, 4, 5, 1, 4}
}
config.EncryptedClientHelloConfigList = ECHConfig
}()
// direct base64 config // direct base64 config
if strings.Contains(c.EchConfigList, "://") { if strings.Contains(c.EchConfigList, "://") {
// query config from dns // query config from dns
@ -61,8 +68,6 @@ func ApplyECH(c *Config, config *tls.Config) error {
return errors.New("Failed to unmarshal ECHConfigList: ", err) return errors.New("Failed to unmarshal ECHConfigList: ", err)
} }
} }
config.EncryptedClientHelloConfigList = ECHConfig
} }
// for server // for server
@ -239,6 +244,7 @@ func dnsQuery(server string, domain string) ([]byte, uint32, error) {
} }
conn.Write(msg) conn.Write(msg)
udpResponse := make([]byte, 512) udpResponse := make([]byte, 512)
conn.SetReadDeadline(time.Now().Add(5 * time.Second))
_, err = conn.Read(udpResponse) _, err = conn.Read(udpResponse)
if err != nil { if err != nil {
return []byte{}, 0, err return []byte{}, 0, err