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-rw-r--r--dialer.go15
-rw-r--r--go.mod12
-rw-r--r--go.sum139
-rw-r--r--listener.go16
-rw-r--r--obfsvpn_test.go2
5 files changed, 176 insertions, 8 deletions
diff --git a/dialer.go b/dialer.go
index 444e0c2..dc22e02 100644
--- a/dialer.go
+++ b/dialer.go
@@ -7,12 +7,15 @@ import (
"net"
"strconv"
- pt "git.torproject.org/pluggable-transports/goptlib.git"
+ "git.torproject.org/pluggable-transports/goptlib.git"
+ "github.com/xtaci/kcp-go/v5"
"gitlab.com/yawning/obfs4.git/common/ntor"
"gitlab.com/yawning/obfs4.git/transports/base"
"gitlab.com/yawning/obfs4.git/transports/obfs4"
)
+const netKCP = "kcp"
+
const (
ptArgNode = "node-id"
ptArgKey = "public-key"
@@ -121,6 +124,12 @@ func NewDialerArgs(args pt.Args) (*Dialer, error) {
}
// Dial creates an outbound net.Conn and performs the ntor handshake.
+//
+// See func net.Dial for a description of the network and address parameters.
+// In addition to the networks supported by net.Dial, Dial supports the network
+// string "kcp" which creates a reliable UDP connection.
+// If the kcp network is used, the underlying net.Dialer is ignored and options
+// set on it do not apply.
func (d *Dialer) Dial(ctx context.Context, network, address string) (net.Conn, error) {
if d.cf == nil {
cf, err := (&obfs4.Transport{}).ClientFactory("")
@@ -135,6 +144,10 @@ func (d *Dialer) Dial(ctx context.Context, network, address string) (net.Conn, e
return nil, err
}
return d.cf.Dial(network, address, func(network, address string) (net.Conn, error) {
+ switch network {
+ case netKCP:
+ return kcp.Dial(address)
+ }
return d.Dialer.DialContext(ctx, network, address)
}, args)
}
diff --git a/go.mod b/go.mod
index c508bed..f4a461f 100644
--- a/go.mod
+++ b/go.mod
@@ -4,13 +4,21 @@ go 1.17
require (
git.torproject.org/pluggable-transports/goptlib.git v1.0.0
+ github.com/xtaci/kcp-go/v5 v5.6.1
gitlab.com/yawning/obfs4.git v0.0.0-20220204003609-77af0cba934d
)
require (
filippo.io/edwards25519 v1.0.0-rc.1.0.20210721174708-390f27c3be20 // indirect
github.com/dchest/siphash v1.2.1 // indirect
+ github.com/klauspost/cpuid/v2 v2.0.11 // indirect
+ github.com/klauspost/reedsolomon v1.9.16 // indirect
+ github.com/pkg/errors v0.9.1 // indirect
+ github.com/templexxx/cpu v0.0.9 // indirect
+ github.com/templexxx/xorsimd v0.4.1 // indirect
+ github.com/tjfoc/gmsm v1.4.1 // indirect
gitlab.com/yawning/edwards25519-extra.git v0.0.0-20211229043746-2f91fcc9fbdb // indirect
- golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
- golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 // indirect
+ golang.org/x/crypto v0.0.0-20220314234724-5d542ad81a58 // indirect
+ golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect
+ golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5 // indirect
)
diff --git a/go.sum b/go.sum
index b64b2f4..28a53ed 100644
--- a/go.sum
+++ b/go.sum
@@ -1,19 +1,154 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
filippo.io/edwards25519 v1.0.0-rc.1.0.20210721174708-390f27c3be20 h1:iJoUgXvhagsNMrJrvavw7vu1eG8+hm6jLOxlLFcoODw=
filippo.io/edwards25519 v1.0.0-rc.1.0.20210721174708-390f27c3be20/go.mod h1:N1IkdkCkiLB6tki+MYJoSx2JTY9NUlxZE7eHn5EwJns=
git.torproject.org/pluggable-transports/goptlib.git v1.0.0 h1:ElTwFFPKf/tA6x5nuIk9g49JZzS4T5WN+eTQTjqd00A=
git.torproject.org/pluggable-transports/goptlib.git v1.0.0/go.mod h1:YT4XMSkuEXbtqlydr9+OxqFAyspUv0Gr9qhM3B++o/Q=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dchest/siphash v1.2.1 h1:4cLinnzVJDKxTCl9B01807Yiy+W7ZzVHj/KIroQRvT4=
github.com/dchest/siphash v1.2.1/go.mod h1:q+IRvb2gOSrUnYoPqHiyHXS0FOBBOdl6tONBlVnOnt4=
+github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
+github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
+github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
+github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
+github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
+github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
+github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
+github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/klauspost/cpuid v1.2.4/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
+github.com/klauspost/cpuid v1.3.1 h1:5JNjFYYQrZeKRJ0734q51WCEEn2huer72Dc7K+R/b6s=
+github.com/klauspost/cpuid v1.3.1/go.mod h1:bYW4mA6ZgKPob1/Dlai2LviZJO7KGI3uoWLd42rAQw4=
+github.com/klauspost/cpuid/v2 v2.0.6/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
+github.com/klauspost/cpuid/v2 v2.0.11 h1:i2lw1Pm7Yi/4O6XCSyJWqEHI2MDw2FzUK6o/D21xn2A=
+github.com/klauspost/cpuid/v2 v2.0.11/go.mod h1:g2LTdtYhdyuGPqyWyv7qRAmj1WBqxuObKfj5c0PQa7c=
+github.com/klauspost/reedsolomon v1.9.9/go.mod h1:O7yFFHiQwDR6b2t63KPUpccPtNdp5ADgh1gg4fd12wo=
+github.com/klauspost/reedsolomon v1.9.16 h1:mR0AwphBwqFv/I3B9AHtNKvzuowI1vrj8/3UX4XRmHA=
+github.com/klauspost/reedsolomon v1.9.16/go.mod h1:eqPAcE7xar5CIzcdfwydOEdcmchAKAP/qs14y4GCBOk=
+github.com/mmcloughlin/avo v0.0.0-20200803215136-443f81d77104/go.mod h1:wqKykBG2QzQDJEzvRkcS8x6MiSJkF52hXZsXcjaB3ls=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/templexxx/cpu v0.0.1/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk=
+github.com/templexxx/cpu v0.0.7/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk=
+github.com/templexxx/cpu v0.0.9 h1:cGGLK8twbc1J1S/fHnZW7BylXYaFP+0fR2s+nzsFDiU=
+github.com/templexxx/cpu v0.0.9/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk=
+github.com/templexxx/xorsimd v0.4.1 h1:iUZcywbOYDRAZUasAs2eSCUW8eobuZDy0I9FJiORkVg=
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+github.com/xtaci/kcp-go/v5 v5.6.1/go.mod h1:W3kVPyNYwZ06p79dNwFWQOVFrdcBpDBsdyvK8moQrYo=
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+github.com/xtaci/lossyconn v0.0.0-20190602105132-8df528c0c9ae/go.mod h1:gXtu8J62kEgmN++bm9BVICuT/e8yiLI2KFobd/TRFsE=
+github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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gitlab.com/yawning/edwards25519-extra.git v0.0.0-20211229043746-2f91fcc9fbdb h1:qRSZHsODmAP5qDvb3YsO7Qnf3TRiVbGxNG/WYnlM4/o=
gitlab.com/yawning/edwards25519-extra.git v0.0.0-20211229043746-2f91fcc9fbdb/go.mod h1:gvdJuZuO/tPZyhEV8K3Hmoxv/DWud5L4qEQxfYjEUTo=
gitlab.com/yawning/obfs4.git v0.0.0-20220204003609-77af0cba934d h1:tJ8F7ABaQ3p3wjxwXiWSktVDgjZEXkvaRawd2rIq5ws=
gitlab.com/yawning/obfs4.git v0.0.0-20220204003609-77af0cba934d/go.mod h1:9GcM8QNU9/wXtEEH2q8bVOnPI7FtIF6VVLzZ1l6Hgf8=
-golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 h1:/UOmuWzQfxxo9UtlXMwuQU8CMgg1eZXqTRwkSQJWKOI=
+golang.org/x/arch v0.0.0-20190909030613-46d78d1859ac/go.mod h1:flIaEI6LNU6xOCD5PaJvn9wGP0agmIOqjrtsKGRguv4=
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+golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20201012173705-84dcc777aaee/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.0.0-20220314234724-5d542ad81a58 h1:L8CkJyVoa0/NslN3RUMLgasK5+KatNvyRGQ9QyCYAfc=
+golang.org/x/crypto v0.0.0-20220314234724-5d542ad81a58/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
+golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
+golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
+golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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+golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
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golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20220225172249-27dd8689420f h1:oA4XRj0qtSt8Yo1Zms0CUlsT3KG69V2UGQWPBxujDmc=
+golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
+golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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diff --git a/listener.go b/listener.go
index 4163cb9..86f1470 100644
--- a/listener.go
+++ b/listener.go
@@ -7,7 +7,8 @@ import (
"encoding/hex"
"net"
- pt "git.torproject.org/pluggable-transports/goptlib.git"
+ "git.torproject.org/pluggable-transports/goptlib.git"
+ "github.com/xtaci/kcp-go/v5"
"gitlab.com/yawning/obfs4.git/common/ntor"
"gitlab.com/yawning/obfs4.git/transports/base"
"gitlab.com/yawning/obfs4.git/transports/obfs4"
@@ -41,8 +42,19 @@ func NewListenConfigCert(cert string) (*ListenConfig, error) {
// Listen announces on the local network address.
//
// See func net.Dial for a description of the network and address parameters.
+// In addition to the networks supported by net.Dial, Listen supports the
+// network string "kcp" which creates a reliable UDP connection.
+// If the kcp network is used, the underlying ListenConfig is ignored and
+// options set on it do not apply.
func (lc *ListenConfig) Listen(ctx context.Context, network, address string) (*Listener, error) {
- ln, err := lc.ListenConfig.Listen(ctx, network, address)
+ var ln net.Listener
+ var err error
+ switch network {
+ case netKCP:
+ ln, err = kcp.Listen(address)
+ default:
+ ln, err = lc.ListenConfig.Listen(ctx, network, address)
+ }
if err != nil {
return nil, err
}
diff --git a/obfsvpn_test.go b/obfsvpn_test.go
index c627500..ad00fb9 100644
--- a/obfsvpn_test.go
+++ b/obfsvpn_test.go
@@ -25,7 +25,7 @@ func TestRoundTrip(t *testing.T) {
PrivateKey: pair.Private(),
StateDir: t.TempDir(),
}
- ln, err := lc.Listen(context.Background(), "tcp", ":0")
+ ln, err := lc.Listen(context.Background(), "tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("error listening for incoming connection: %v", err)
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 23:25:26 +0000