From a3023e43ef55d4498b1afbc9a7fe7b385138bb1a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E4=B8=96=E7=95=8C?= Date: Thu, 16 Sep 2021 15:05:48 +0800 Subject: [PATCH] Add routeOnly sniffing option --- app/dispatcher/default.go | 12 +- app/proxyman/config.pb.go | 170 +++++++++++++++------------- app/proxyman/config.proto | 4 +- app/proxyman/inbound/worker.go | 3 + common/session/session.go | 4 +- features/routing/dns/context.go | 8 +- features/routing/session/context.go | 7 +- infra/conf/xray.go | 2 + 8 files changed, 121 insertions(+), 89 deletions(-) diff --git a/app/dispatcher/default.go b/app/dispatcher/default.go index 306cd7b0..14c31a26 100644 --- a/app/dispatcher/default.go +++ b/app/dispatcher/default.go @@ -237,7 +237,11 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin domain := result.Domain() newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx)) destination.Address = net.ParseAddress(domain) - ob.Target = destination + if sniffingRequest.RouteOnly && result.Protocol() != "fakedns" { + ob.RouteTarget = destination + } else { + ob.Target = destination + } } } go d.routedDispatch(ctx, outbound, destination) @@ -255,7 +259,11 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin domain := result.Domain() newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx)) destination.Address = net.ParseAddress(domain) - ob.Target = destination + if sniffingRequest.RouteOnly && result.Protocol() != "fakedns" { + ob.RouteTarget = destination + } else { + ob.Target = destination + } } d.routedDispatch(ctx, outbound, destination) }() diff --git a/app/proxyman/config.pb.go b/app/proxyman/config.pb.go index 70028353..d1b9b1fb 100644 --- a/app/proxyman/config.pb.go +++ b/app/proxyman/config.pb.go @@ -240,6 +240,7 @@ type SniffingConfig struct { // Whether should only try to sniff metadata without waiting for client input. // Can be used to support SMTP like protocol where server send the first message. MetadataOnly bool `protobuf:"varint,4,opt,name=metadata_only,json=metadataOnly,proto3" json:"metadata_only,omitempty"` + RouteOnly bool `protobuf:"varint,5,opt,name=route_only,json=routeOnly,proto3" json:"route_only,omitempty"` } func (x *SniffingConfig) Reset() { @@ -302,6 +303,13 @@ func (x *SniffingConfig) GetMetadataOnly() bool { return false } +func (x *SniffingConfig) GetRouteOnly() bool { + if x != nil { + return x.RouteOnly + } + return false +} + type ReceiverConfig struct { state protoimpl.MessageState sizeCache protoimpl.SizeCache @@ -769,7 +777,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{ 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x2c, 0x0a, 0x04, 0x54, 0x79, 0x70, 0x65, 0x12, 0x0a, 0x0a, 0x06, 0x41, 0x6c, 0x77, 0x61, 0x79, 0x73, 0x10, 0x00, 0x12, 0x0a, 0x0a, 0x06, 0x52, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x10, 0x01, 0x12, 0x0c, 0x0a, 0x08, 0x45, 0x78, 0x74, 0x65, 0x72, - 0x6e, 0x61, 0x6c, 0x10, 0x02, 0x22, 0xad, 0x01, 0x0a, 0x0e, 0x53, 0x6e, 0x69, 0x66, 0x66, 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ReceiverConfig { diff --git a/app/proxyman/inbound/worker.go b/app/proxyman/inbound/worker.go index 913c69cc..1db11a9e 100644 --- a/app/proxyman/inbound/worker.go +++ b/app/proxyman/inbound/worker.go @@ -101,6 +101,7 @@ func (w *tcpWorker) callback(conn stat.Connection) { content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly + content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly } ctx = session.ContextWithContent(ctx, content) @@ -320,6 +321,7 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest content.SniffingRequest.Enabled = w.sniffingConfig.Enabled content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly + content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly } ctx = session.ContextWithContent(ctx, content) if err := w.proxy.Process(ctx, net.Network_UDP, conn, w.dispatcher); err != nil { @@ -463,6 +465,7 @@ func (w *dsWorker) callback(conn stat.Connection) { content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly + content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly } ctx = session.ContextWithContent(ctx, content) diff --git a/common/session/session.go b/common/session/session.go index aa85aa58..a753c59d 100644 --- a/common/session/session.go +++ b/common/session/session.go @@ -53,7 +53,8 @@ type Inbound struct { // Outbound is the metadata of an outbound connection. type Outbound struct { // Target address of the outbound connection. - Target net.Destination + Target net.Destination + RouteTarget net.Destination // Gateway address Gateway net.Address } @@ -64,6 +65,7 @@ type SniffingRequest struct { OverrideDestinationForProtocol []string Enabled bool MetadataOnly bool + RouteOnly bool } // Content is the metadata of the connection content. diff --git a/features/routing/dns/context.go b/features/routing/dns/context.go index b4d07717..7b7fe928 100644 --- a/features/routing/dns/context.go +++ b/features/routing/dns/context.go @@ -17,10 +17,6 @@ type ResolvableContext struct { // GetTargetIPs overrides original routing.Context's implementation. func (ctx *ResolvableContext) GetTargetIPs() []net.IP { - if ips := ctx.Context.GetTargetIPs(); len(ips) != 0 { - return ips - } - if len(ctx.resolvedIPs) > 0 { return ctx.resolvedIPs } @@ -38,6 +34,10 @@ func (ctx *ResolvableContext) GetTargetIPs() []net.IP { newError("resolve ip for ", domain).Base(err).WriteToLog() } + if ips := ctx.Context.GetTargetIPs(); len(ips) != 0 { + return ips + } + return nil } diff --git a/features/routing/session/context.go b/features/routing/session/context.go index ce7e9493..c900219d 100644 --- a/features/routing/session/context.go +++ b/features/routing/session/context.go @@ -70,7 +70,12 @@ func (ctx *Context) GetTargetDomain() string { if ctx.Outbound == nil || !ctx.Outbound.Target.IsValid() { return "" } - dest := ctx.Outbound.Target + dest := ctx.Outbound.RouteTarget + if dest.IsValid() && dest.Address.Family().IsDomain() { + return dest.Address.Domain() + } + + dest = ctx.Outbound.Target if !dest.Address.Family().IsDomain() { return "" } diff --git a/infra/conf/xray.go b/infra/conf/xray.go index 8e7290a0..8471d618 100644 --- a/infra/conf/xray.go +++ b/infra/conf/xray.go @@ -64,6 +64,7 @@ type SniffingConfig struct { DestOverride *StringList `json:"destOverride"` DomainsExcluded *StringList `json:"domainsExcluded"` MetadataOnly bool `json:"metadataOnly"` + RouteOnly bool `json:"routeOnly"` } // Build implements Buildable. @@ -98,6 +99,7 @@ func (c *SniffingConfig) Build() (*proxyman.SniffingConfig, error) { DestinationOverride: p, DomainsExcluded: d, MetadataOnly: c.MetadataOnly, + RouteOnly: c.RouteOnly, }, nil }