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Add dns proxy response ttl control (#3323)

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Xiaokang Wang (Shelikhoo) 2025-04-05 15:51:27 +01:00 committed by GitHub
parent 21653e2ecf
commit c3be0e2622
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GPG Key ID: B5690EEEBB952194
3 changed files with 81 additions and 23 deletions
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89
proxy/dns/config.pb.go
View File

@ -21,10 +21,12 @@ type Config struct {
state protoimpl.MessageState `protogen:"open.v1"`
// Server is the DNS server address. If specified, this address overrides the
// original one.
Server *net.Endpoint `protobuf:"bytes,1,opt,name=server,proto3" json:"server,omitempty"`
UserLevel uint32 `protobuf:"varint,2,opt,name=user_level,json=userLevel,proto3" json:"user_level,omitempty"`
unknownFields protoimpl.UnknownFields
sizeCache protoimpl.SizeCache
Server *net.Endpoint `protobuf:"bytes,1,opt,name=server,proto3" json:"server,omitempty"`
UserLevel uint32 `protobuf:"varint,2,opt,name=user_level,json=userLevel,proto3" json:"user_level,omitempty"`
OverrideResponseTtl bool `protobuf:"varint,4,opt,name=override_response_ttl,json=overrideResponseTtl,proto3" json:"override_response_ttl,omitempty"`
ResponseTtl uint32 `protobuf:"varint,3,opt,name=response_ttl,json=responseTtl,proto3" json:"response_ttl,omitempty"`
unknownFields protoimpl.UnknownFields
sizeCache protoimpl.SizeCache
}
func (x *Config) Reset() {
@ -71,10 +73,26 @@ func (x *Config) GetUserLevel() uint32 {
return 0
}
func (x *Config) GetOverrideResponseTtl() bool {
if x != nil {
return x.OverrideResponseTtl
}
return false
}
func (x *Config) GetResponseTtl() uint32 {
if x != nil {
return x.ResponseTtl
}
return 0
}
type SimplifiedConfig struct {
state protoimpl.MessageState `protogen:"open.v1"`
unknownFields protoimpl.UnknownFields
sizeCache protoimpl.SizeCache
state protoimpl.MessageState `protogen:"open.v1"`
OverrideResponseTtl bool `protobuf:"varint,4,opt,name=override_response_ttl,json=overrideResponseTtl,proto3" json:"override_response_ttl,omitempty"`
ResponseTtl uint32 `protobuf:"varint,3,opt,name=response_ttl,json=responseTtl,proto3" json:"response_ttl,omitempty"`
unknownFields protoimpl.UnknownFields
sizeCache protoimpl.SizeCache
}
func (x *SimplifiedConfig) Reset() {
@ -107,6 +125,20 @@ func (*SimplifiedConfig) Descriptor() ([]byte, []int) {
return file_proxy_dns_config_proto_rawDescGZIP(), []int{1}
}
func (x *SimplifiedConfig) GetOverrideResponseTtl() bool {
if x != nil {
return x.OverrideResponseTtl
}
return false
}
func (x *SimplifiedConfig) GetResponseTtl() uint32 {
if x != nil {
return x.ResponseTtl
}
return 0
}
var File_proxy_dns_config_proto protoreflect.FileDescriptor
var file_proxy_dns_config_proto_rawDesc = string([]byte{
@ -116,22 +148,33 @@ var file_proxy_dns_config_proto_rawDesc = string([]byte{
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})
var (

6
proxy/dns/config.proto
View File

@ -14,9 +14,15 @@ message Config {
// original one.
v2ray.core.common.net.Endpoint server = 1;
uint32 user_level = 2;
bool override_response_ttl = 4;
uint32 response_ttl = 3;
}
message SimplifiedConfig {
option (v2ray.core.common.protoext.message_opt).type = "outbound";
option (v2ray.core.common.protoext.message_opt).short_name = "dns";
bool override_response_ttl = 4;
uint32 response_ttl = 3;
}

9
proxy/dns/dns.go
View File

@ -38,6 +38,8 @@ func init() {
simplifiedServer := config.(*SimplifiedConfig)
_ = simplifiedServer
fullConfig := &Config{}
fullConfig.OverrideResponseTtl = simplifiedServer.OverrideResponseTtl
fullConfig.ResponseTtl = simplifiedServer.ResponseTtl
return common.CreateObject(ctx, fullConfig)
}))
}
@ -53,6 +55,8 @@ type Handler struct {
ownLinkVerifier ownLinkVerifier
server net.Destination
timeout time.Duration
config *Config
}
func (h *Handler) Init(config *Config, dnsClient dns.Client, policyManager policy.Manager) error {
@ -82,6 +86,8 @@ func (h *Handler) Init(config *Config, dnsClient dns.Client, policyManager polic
if config.Server != nil {
h.server = config.Server.AsDestination()
}
h.config = config
return nil
}
@ -239,6 +245,9 @@ func (h *Handler) handleIPQuery(id uint16, qType dnsmessage.Type, domain string,
var err error
var ttl uint32 = 600
if h.config.OverrideResponseTtl {
ttl = h.config.ResponseTtl
}
switch qType {
case dnsmessage.TypeA: