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Add: reject unknown SNI

Browse Source 
Co-Authored-By: 玖柒Max <60207794+jiuqi9997@users.noreply.github.com>
This commit is contained in:
hmol233 2021-05-09 23:47:21 +08:00
parent 1e3d739a5b
commit 53b99efe78
No known key found for this signature in database
GPG Key ID: D617A9DAB0C992D5
7 changed files with 63 additions and 27 deletions
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4
infra/conf/transport_internet.go
View File

@ -322,6 +322,7 @@ type TLSConfig struct {
CipherSuites string `json:"cipherSuites"`
PreferServerCipherSuites bool `json:"preferServerCipherSuites"`
Fingerprint string `json:"fingerprint"`
RejectUnknownSNI bool `json:"rejectUnknownSni"`
}
// Build implements Buildable.
@ -350,6 +351,7 @@ func (c *TLSConfig) Build() (proto.Message, error) {
config.CipherSuites = c.CipherSuites
config.PreferServerCipherSuites = c.PreferServerCipherSuites
config.Fingerprint = strings.ToLower(c.Fingerprint)
config.RejectUnknownSni = c.RejectUnknownSNI
return config, nil
}
@ -413,6 +415,7 @@ type XTLSConfig struct {
MaxVersion string `json:"maxVersion"`
CipherSuites string `json:"cipherSuites"`
PreferServerCipherSuites bool `json:"preferServerCipherSuites"`
RejectUnknownSNI bool `json:"rejectUnknownSni"`
}
// Build implements Buildable.
@ -440,6 +443,7 @@ func (c *XTLSConfig) Build() (proto.Message, error) {
config.MaxVersion = c.MaxVersion
config.CipherSuites = c.CipherSuites
config.PreferServerCipherSuites = c.PreferServerCipherSuites
config.RejectUnknownSni = c.RejectUnknownSNI
return config, nil
}

7
transport/internet/tls/config.go
View File

@ -211,7 +211,7 @@ func getGetCertificateFunc(c *tls.Config, ca []*Certificate) func(hello *tls.Cli
}
}
func getNewGetCertficateFunc(certs []*tls.Certificate) func(hello *tls.ClientHelloInfo) (*tls.Certificate, error) {
func getNewGetCertificateFunc(certs []*tls.Certificate, rejectUnknownSNI bool) func(hello *tls.ClientHelloInfo) (*tls.Certificate, error) {
return func(hello *tls.ClientHelloInfo) (*tls.Certificate, error) {
if len(certs) == 0 {
return nil, newError("empty certs")
@ -234,6 +234,9 @@ func getNewGetCertficateFunc(certs []*tls.Certificate) func(hello *tls.ClientHel
}
}
}
if rejectUnknownSNI {
return nil, newError("reject unknown sni")
}
return certs[0], nil
}
}
@ -275,7 +278,7 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
if len(caCerts) > 0 {
config.GetCertificate = getGetCertificateFunc(config, caCerts)
} else {
config.GetCertificate = getNewGetCertficateFunc(c.BuildCertificates())
config.GetCertificate = getNewGetCertificateFunc(c.BuildCertificates(), c.RejectUnknownSni)
}
if sn := c.parseServerName(); len(sn) > 0 {

35
transport/internet/tls/config.pb.go
View File

@ -1,7 +1,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.25.0
// protoc v3.15.6
// protoc v3.15.8
// source: transport/internet/tls/config.proto
package tls
@ -201,7 +201,8 @@ type Config struct {
// Whether the server selects its most preferred ciphersuite.
PreferServerCipherSuites bool `protobuf:"varint,10,opt,name=prefer_server_cipher_suites,json=preferServerCipherSuites,proto3" json:"prefer_server_cipher_suites,omitempty"`
// TLS Client Hello fingerprint (uTLS).
Fingerprint string `protobuf:"bytes,11,opt,name=fingerprint,proto3" json:"fingerprint,omitempty"`
Fingerprint string `protobuf:"bytes,11,opt,name=fingerprint,proto3" json:"fingerprint,omitempty"`
RejectUnknownSni bool `protobuf:"varint,12,opt,name=reject_unknown_sni,json=rejectUnknownSni,proto3" json:"reject_unknown_sni,omitempty"`
}
func (x *Config) Reset() {
@ -313,6 +314,13 @@ func (x *Config) GetFingerprint() string {
return ""
}
func (x *Config) GetRejectUnknownSni() bool {
if x != nil {
return x.RejectUnknownSni
}
return false
}
var File_transport_internet_tls_config_proto protoreflect.FileDescriptor
var file_transport_internet_tls_config_proto_rawDesc = []byte{
@ -342,7 +350,7 @@ var file_transport_internet_tls_config_proto_rawDesc = []byte{
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@ -373,15 +381,18 @@ var file_transport_internet_tls_config_proto_rawDesc = []byte{
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}
var (

2
transport/internet/tls/config.proto
View File

@ -67,4 +67,6 @@ message Config {
// TLS Client Hello fingerprint (uTLS).
string fingerprint = 11;
bool reject_unknown_sni = 12;
}

7
transport/internet/xtls/config.go
View File

@ -212,7 +212,7 @@ func getGetCertificateFunc(c *xtls.Config, ca []*Certificate) func(hello *xtls.C
}
}
func getNewGetCertficateFunc(certs []*xtls.Certificate) func(hello *xtls.ClientHelloInfo) (*xtls.Certificate, error) {
func getNewGetCertificateFunc(certs []*xtls.Certificate, rejectUnknownSNI bool) func(hello *xtls.ClientHelloInfo) (*xtls.Certificate, error) {
return func(hello *xtls.ClientHelloInfo) (*xtls.Certificate, error) {
if len(certs) == 0 {
return nil, newError("empty certs")
@ -235,6 +235,9 @@ func getNewGetCertficateFunc(certs []*xtls.Certificate) func(hello *xtls.ClientH
}
}
}
if rejectUnknownSNI {
return nil, newError("reject unknown sni")
}
return certs[0], nil
}
}
@ -276,7 +279,7 @@ func (c *Config) GetXTLSConfig(opts ...Option) *xtls.Config {
if len(caCerts) > 0 {
config.GetCertificate = getGetCertificateFunc(config, caCerts)
} else {
config.GetCertificate = getNewGetCertficateFunc(c.BuildCertificates())
config.GetCertificate = getNewGetCertificateFunc(c.BuildCertificates(), c.RejectUnknownSni)
}
if sn := c.parseServerName(); len(sn) > 0 {

32
transport/internet/xtls/config.pb.go
View File

@ -1,7 +1,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.25.0
// protoc v3.14.0
// protoc v3.15.8
// source: transport/internet/xtls/config.proto
package xtls
@ -200,6 +200,7 @@ type Config struct {
CipherSuites string `protobuf:"bytes,9,opt,name=cipher_suites,json=cipherSuites,proto3" json:"cipher_suites,omitempty"`
// Whether the server selects its most preferred ciphersuite.
PreferServerCipherSuites bool `protobuf:"varint,10,opt,name=prefer_server_cipher_suites,json=preferServerCipherSuites,proto3" json:"prefer_server_cipher_suites,omitempty"`
RejectUnknownSni bool `protobuf:"varint,12,opt,name=reject_unknown_sni,json=rejectUnknownSni,proto3" json:"reject_unknown_sni,omitempty"`
}
func (x *Config) Reset() {
@ -304,6 +305,13 @@ func (x *Config) GetPreferServerCipherSuites() bool {
return false
}
func (x *Config) GetRejectUnknownSni() bool {
if x != nil {
return x.RejectUnknownSni
}
return false
}
var File_transport_internet_xtls_config_proto protoreflect.FileDescriptor
var file_transport_internet_xtls_config_proto_rawDesc = []byte{
@ -333,7 +341,7 @@ var file_transport_internet_xtls_config_proto_rawDesc = []byte{
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@ -363,15 +371,17 @@ var file_transport_internet_xtls_config_proto_rawDesc = []byte{
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}
var (

3
transport/internet/xtls/config.proto
View File

@ -64,4 +64,7 @@ message Config {
// Whether the server selects its most preferred ciphersuite.
bool prefer_server_cipher_suites = 10;
bool reject_unknown_sni = 12;
}