From 6f8e253dec926ce324cceba16c7d2d6eb7a46b9f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=A3=8E=E6=89=87=E6=BB=91=E7=BF=94=E7=BF=BC?= Date: Fri, 21 Mar 2025 08:18:59 +0800 Subject: [PATCH] DNS: Add `tag` for DnsServerObject (#4515) Closes https://github.com/XTLS/Xray-core/issues/4505 --- app/dns/config.pb.go | 123 ++++++++++++++++++++++-------------------- app/dns/config.proto | 1 + app/dns/nameserver.go | 10 ++++ infra/conf/dns.go | 4 ++ 4 files changed, 81 insertions(+), 57 deletions(-) diff --git a/app/dns/config.pb.go b/app/dns/config.pb.go index 33dc904b..7f6888a3 100644 --- a/app/dns/config.pb.go +++ b/app/dns/config.pb.go @@ -136,6 +136,7 @@ type NameServer struct { OriginalRules []*NameServer_OriginalRule `protobuf:"bytes,4,rep,name=original_rules,json=originalRules,proto3" json:"original_rules,omitempty"` QueryStrategy QueryStrategy `protobuf:"varint,7,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"` AllowUnexpectedIPs bool `protobuf:"varint,8,opt,name=allowUnexpectedIPs,proto3" json:"allowUnexpectedIPs,omitempty"` + Tag string `protobuf:"bytes,9,opt,name=tag,proto3" json:"tag,omitempty"` } func (x *NameServer) Reset() { @@ -224,6 +225,13 @@ func (x *NameServer) GetAllowUnexpectedIPs() bool { return false } +func (x *NameServer) GetTag() string { + if x != nil { + return x.Tag + } + return "" +} + type Config struct { state protoimpl.MessageState sizeCache protoimpl.SizeCache @@ -516,7 +524,7 @@ var file_app_dns_config_proto_rawDesc = []byte{ 0x2e, 0x64, 0x6e, 0x73, 0x1a, 0x1c, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74, 0x2f, 0x64, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x17, 0x61, 0x70, 0x70, 0x2f, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2f, 0x63, - 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xe2, 0x04, 0x0a, 0x0a, + 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 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@@ -29,6 +29,7 @@ message NameServer { repeated OriginalRule original_rules = 4; QueryStrategy query_strategy = 7; bool allowUnexpectedIPs = 8; + string tag = 9; } enum DomainMatchingType { diff --git a/app/dns/nameserver.go b/app/dns/nameserver.go index e1f902bf..d46c00b7 100644 --- a/app/dns/nameserver.go +++ b/app/dns/nameserver.go @@ -9,6 +9,7 @@ import ( "github.com/xtls/xray-core/app/router" "github.com/xtls/xray-core/common/errors" "github.com/xtls/xray-core/common/net" + "github.com/xtls/xray-core/common/session" "github.com/xtls/xray-core/common/strmatcher" "github.com/xtls/xray-core/core" "github.com/xtls/xray-core/features/dns" @@ -31,6 +32,7 @@ type Client struct { domains []string expectIPs []*router.GeoIPMatcher allowUnexpectedIPs bool + tag string } var errExpectedIPNonMatch = errors.New("expectIPs not match") @@ -168,6 +170,7 @@ func NewClient( client.domains = rules client.expectIPs = matchers client.allowUnexpectedIPs = ns.AllowUnexpectedIPs + client.tag = ns.Tag return nil }) return client, err @@ -181,6 +184,13 @@ func (c *Client) Name() string { // QueryIP sends DNS query to the name server with the client's IP. func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption, disableCache bool) ([]net.IP, error) { ctx, cancel := context.WithTimeout(ctx, 4*time.Second) + if len(c.tag) != 0 { + content := session.InboundFromContext(ctx) + errors.LogDebug(ctx, "DNS: client override tag from ", content.Tag, " to ", c.tag) + // create a new context to override the tag + // do not direct set *content.Tag, it might be used by other clients + ctx = session.ContextWithInbound(ctx, &session.Inbound{Tag: c.tag}) + } ips, err := c.server.QueryIP(ctx, domain, c.clientIP, option, disableCache) cancel() diff --git a/infra/conf/dns.go b/infra/conf/dns.go index b2289026..f2e91573 100644 --- a/infra/conf/dns.go +++ b/infra/conf/dns.go @@ -20,6 +20,7 @@ type NameServerConfig struct { ExpectIPs StringList `json:"expectIps"` QueryStrategy string `json:"queryStrategy"` AllowUnexpectedIPs bool `json:"allowUnexpectedIps"` + Tag string `json:"tag"` } func (c *NameServerConfig) UnmarshalJSON(data []byte) error { @@ -38,6 +39,7 @@ func (c *NameServerConfig) UnmarshalJSON(data []byte) error { ExpectIPs StringList `json:"expectIps"` QueryStrategy string `json:"queryStrategy"` AllowUnexpectedIPs bool `json:"allowUnexpectedIps"` + Tag string `json:"tag"` } if err := json.Unmarshal(data, &advanced); err == nil { c.Address = advanced.Address @@ -48,6 +50,7 @@ func (c *NameServerConfig) UnmarshalJSON(data []byte) error { c.ExpectIPs = advanced.ExpectIPs c.QueryStrategy = advanced.QueryStrategy c.AllowUnexpectedIPs = advanced.AllowUnexpectedIPs + c.Tag = advanced.Tag return nil } @@ -121,6 +124,7 @@ func (c *NameServerConfig) Build() (*dns.NameServer, error) { OriginalRules: originalRules, QueryStrategy: resolveQueryStrategy(c.QueryStrategy), AllowUnexpectedIPs: c.AllowUnexpectedIPs, + Tag: c.Tag, }, nil }