add serial port(COM) listener and handler

go.mod

@@ -23,21 +23,22 @@ require (
 	github.com/pion/dtls/v2 v2.2.6
 	github.com/pires/go-proxyproto v0.6.2
 	github.com/prometheus/client_golang v1.14.0
-	github.com/quic-go/quic-go v0.38.0
+	github.com/quic-go/quic-go v0.38.1
 	github.com/rs/xid v1.3.0
 	github.com/shadowsocks/go-shadowsocks2 v0.1.5
 	github.com/shadowsocks/shadowsocks-go v0.0.0-20200409064450-3e585ff90601
 	github.com/sirupsen/logrus v1.8.1
 	github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8
 	github.com/spf13/viper v1.14.0
+	github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07
 	github.com/vishvananda/netlink v1.1.0
 	github.com/xtaci/kcp-go/v5 v5.6.1
 	github.com/xtaci/smux v1.5.16
 	github.com/xtaci/tcpraw v1.2.25
 	github.com/yl2chen/cidranger v1.0.2
-	golang.org/x/crypto v0.12.0
+	golang.org/x/crypto v0.13.0
-	golang.org/x/net v0.10.0
+	golang.org/x/net v0.15.0
-	golang.org/x/sys v0.11.0
+	golang.org/x/sys v0.12.0
 	golang.org/x/time v0.3.0
 	golang.zx2c4.com/wireguard v0.0.0-20220703234212-c31a7b1ab478
 	google.golang.org/grpc v1.54.0
@@ -59,12 +60,12 @@ require (
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.14.0 // indirect
-	github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 // indirect
+	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/golang/mock v1.6.0 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/gopacket v1.1.19 // indirect
-	github.com/google/pprof v0.0.0-20221219190121-3cb0bae90811 // indirect
+	github.com/google/pprof v0.0.0-20230912144702-c363fe2c2ed8 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid v1.3.1 // indirect
@@ -78,7 +79,7 @@ require (
 	github.com/mmcloughlin/avo v0.0.0-20200803215136-443f81d77104 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/onsi/ginkgo/v2 v2.9.5 // indirect
+	github.com/onsi/ginkgo/v2 v2.12.0 // indirect
 	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
 	github.com/pion/logging v0.2.2 // indirect
@@ -89,7 +90,7 @@ require (
 	github.com/prometheus/common v0.37.0 // indirect
 	github.com/prometheus/procfs v0.8.0 // indirect
 	github.com/quic-go/qpack v0.4.0 // indirect
-	github.com/quic-go/qtls-go1-20 v0.3.2 // indirect
+	github.com/quic-go/qtls-go1-20 v0.3.4 // indirect
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
 	github.com/spf13/afero v1.9.3 // indirect
 	github.com/spf13/cast v1.5.0 // indirect
@@ -103,10 +104,10 @@ require (
 	github.com/ugorji/go/codec v1.2.11 // indirect
 	github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df // indirect
 	golang.org/x/arch v0.3.0 // indirect
-	golang.org/x/exp v0.0.0-20221217163422-3c43f8badb15 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
-	golang.org/x/mod v0.10.0 // indirect
+	golang.org/x/mod v0.12.0 // indirect
-	golang.org/x/text v0.12.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
-	golang.org/x/tools v0.9.1 // indirect
+	golang.org/x/tools v0.13.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
 	google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect

go.sum

@@ -120,8 +120,7 @@ github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
 github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
-github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
+github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
-github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.12.1/go.mod h1:IUMDtCfWo/w/mtMfIE/IG2K+Ey3ygWanZIBtBW0W2TM=
 github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
 github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
@@ -202,8 +201,10 @@ github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hf
 github.com/google/pprof v0.0.0-20201023163331-3e6fc7fc9c4c/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20201203190320-1bf35d6f28c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20201218002935-b9804c9f04c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
-github.com/google/pprof v0.0.0-20221219190121-3cb0bae90811 h1:wORs2YN3R3ona/CXYuTvLM31QlgoNKHvlCNuArCDDCU=
+github.com/google/pprof v0.0.0-20230907193218-d3ddc7976beb h1:LCMfzVg3sflxTs4UvuP4D8CkoZnfHLe2qzqgDn/4OHs=
-github.com/google/pprof v0.0.0-20221219190121-3cb0bae90811/go.mod h1:dDKJzRmX4S37WGHujM7tX//fmj1uioxKzKxz3lo4HJo=
+github.com/google/pprof v0.0.0-20230907193218-d3ddc7976beb/go.mod h1:czg5+yv1E0ZGTi6S6vVK1mke0fV+FaUhNGcd6VRS9Ik=
+github.com/google/pprof v0.0.0-20230912144702-c363fe2c2ed8 h1:gpptm606MZYGaMHMsB4Srmb6EbW/IVHnt04rcMXnkBQ=
+github.com/google/pprof v0.0.0-20230912144702-c363fe2c2ed8/go.mod h1:czg5+yv1E0ZGTi6S6vVK1mke0fV+FaUhNGcd6VRS9Ik=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
@@ -275,9 +276,9 @@ github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRW
 github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
 github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
-github.com/onsi/ginkgo/v2 v2.9.5 h1:+6Hr4uxzP4XIUyAkg61dWBw8lb/gc4/X5luuxN/EC+Q=
+github.com/onsi/ginkgo/v2 v2.12.0 h1:UIVDowFPwpg6yMUpPjGkYvf06K3RAiJXUhCxEwQVHRI=
-github.com/onsi/ginkgo/v2 v2.9.5/go.mod h1:tvAoo1QUJwNEU2ITftXTpR7R1RbCzoZUOs3RonqW57k=
+github.com/onsi/ginkgo/v2 v2.12.0/go.mod h1:ZNEzXISYlqpb8S36iN71ifqLi3vVD1rVJGvWRCJOUpQ=
-github.com/onsi/gomega v1.27.6 h1:ENqfyGeS5AX/rlXDd/ETokDz93u0YufY1Pgxuy/PvWE=
+github.com/onsi/gomega v1.27.10 h1:naR28SdDFlqrG6kScpT8VWpu1xWY5nJRCF3XaYyBjhI=
 github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=
 github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
 github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
@@ -329,10 +330,12 @@ github.com/prometheus/procfs v0.8.0 h1:ODq8ZFEaYeCaZOJlZZdJA2AbQR98dSHSM1KW/You5
 github.com/prometheus/procfs v0.8.0/go.mod h1:z7EfXMXOkbkqb9IINtpCn86r/to3BnA0uaxHdg830/4=
 github.com/quic-go/qpack v0.4.0 h1:Cr9BXA1sQS2SmDUWjSofMPNKmvF6IiIfDRmgU0w1ZCo=
 github.com/quic-go/qpack v0.4.0/go.mod h1:UZVnYIfi5GRk+zI9UMaCPsmZ2xKJP7XBUvVyT1Knj9A=
-github.com/quic-go/qtls-go1-20 v0.3.2 h1:rRgN3WfnKbyik4dBV8A6girlJVxGand/d+jVKbQq5GI=
+github.com/quic-go/qtls-go1-20 v0.3.3 h1:17/glZSLI9P9fDAeyCHBFSWSqJcwx1byhLwP5eUIDCM=
-github.com/quic-go/qtls-go1-20 v0.3.2/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
+github.com/quic-go/qtls-go1-20 v0.3.3/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
-github.com/quic-go/quic-go v0.38.0 h1:T45lASr5q/TrVwt+jrVccmqHhPL2XuSyoCLVCpfOSLc=
+github.com/quic-go/qtls-go1-20 v0.3.4 h1:MfFAPULvst4yoMgY9QmtpYmfij/em7O8UUi+bNVm7Cg=
-github.com/quic-go/quic-go v0.38.0/go.mod h1:MPCuRq7KBK2hNcfKj/1iD1BGuN3eAYMeNxp3T42LRUg=
+github.com/quic-go/qtls-go1-20 v0.3.4/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
+github.com/quic-go/quic-go v0.38.1 h1:M36YWA5dEhEeT+slOu/SwMEucbYd0YFidxG3KlGPZaE=
+github.com/quic-go/quic-go v0.38.1/go.mod h1:ijnZM7JsFIkp4cRyjxJNIzdSfCLmUMg9wdyhGmg+SN4=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 h1:f/FNXud6gA3MNr8meMVVGxhp+QBTqY91tM8HjEuMjGg=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3/go.mod h1:HgjTstvQsPGkxUsCd2KWxErBblirPizecHcpD3ffK+s=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
@@ -378,6 +381,8 @@ github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gt
 github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/subosito/gotenv v1.4.1 h1:jyEFiXpy21Wm81FBN71l9VoMMV8H8jG+qIK3GCpY6Qs=
 github.com/subosito/gotenv v1.4.1/go.mod h1:ayKnFf/c6rvx/2iiLrJUk1e6plDbT3edrFNGqEflhK0=
+github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07 h1:UyzmZLoiDWMRywV4DUYb9Fbt8uiOSooupjTq10vpvnU=
+github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
 github.com/templexxx/cpu v0.0.1/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk=
 github.com/templexxx/cpu v0.0.7 h1:pUEZn8JBy/w5yzdYWgx+0m0xL9uk6j4K91C5kOViAzo=
 github.com/templexxx/cpu v0.0.7/go.mod h1:w7Tb+7qgcAlIyX4NhLuDKt78AHA5SzPmq0Wj6HiEnnk=
@@ -434,8 +439,8 @@ golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.5.0/go.mod h1:NK/OQwhpMQP3MwtdjgLlYHnH9ebylxKWv3e0fK+mkQU=
-golang.org/x/crypto v0.12.0 h1:tFM/ta59kqch6LlvYnPa0yx5a83cL2nHflFhYKvv9Yk=
+golang.org/x/crypto v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck=
-golang.org/x/crypto v0.12.0/go.mod h1:NF0Gs7EO5K4qLn+Ylc+fih8BSTeIjAP05siRnAh98yw=
+golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -448,6 +453,8 @@ golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EH
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
 golang.org/x/exp v0.0.0-20221217163422-3c43f8badb15 h1:5oN1Pz/eDhCpbMbLstvIPa0b/BEQo6g6nwV3pLjfM6w=
 golang.org/x/exp v0.0.0-20221217163422-3c43f8badb15/go.mod h1:CxIveKay+FTh1D0yPZemJVgC/95VzuuOLq5Qi4xnoYc=
+golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g=
+golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -473,8 +480,8 @@ golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.10.0 h1:lFO9qtOdlre5W1jxS3r/4szv2/6iXxScdzjoBMXNhYk=
+golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
-golang.org/x/mod v0.10.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -510,14 +517,13 @@ golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.5.0/go.mod h1:DivGGAXEgPSlEBzxGzZI+ZLohi+xUj054jfeKui00ws=
 golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.10.0 h1:X2//UzNDwYmtCLn7To6G58Wr6f5ahEAQgKNzv9Y951M=
+golang.org/x/net v0.15.0 h1:ugBLEUaxABaB5AJqW9enI0ACdci2RUd4eP51NTBvuJ8=
-golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
+golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -541,7 +547,7 @@ golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.2.0 h1:PUR+T4wwASmuSTYdKjYHI5TD22Wy5ogLU5qZCOLxBrI=
+golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -591,7 +597,6 @@ golang.org/x/sys v0.0.0-20210423185535-09eb48e85fd7/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220114195835-da31bd327af9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -600,14 +605,15 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=
+golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.4.0/go.mod h1:9P2UbLfCdcvo3p/nzKvsmas4TnlujnuoV9hGgYzW1lQ=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
-golang.org/x/term v0.11.0 h1:F9tnn/DA/Im8nCwm+fX+1/eBwi4qFjRT++MhtVC4ZX0=
+golang.org/x/term v0.12.0 h1:/ZfYdc3zq+q02Rv9vGqTeSItdzZTSNDmfTi0mBAuidU=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -618,8 +624,8 @@ golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.6.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
+golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
-golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -676,8 +682,10 @@ golang.org/x/tools v0.0.0-20210108195828-e2f9c7f1fc8e/go.mod h1:emZCQorbCU4vsT4f
 golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.9.1 h1:8WMNJAz3zrtPmnYC7ISf5dEn3MT0gY7jBJfw27yrrLo=
+golang.org/x/tools v0.12.0 h1:YW6HUoUmYBpwSgyaGaZq1fHjrBjX1rlpZ54T6mu2kss=
-golang.org/x/tools v0.9.1/go.mod h1:owI94Op576fPu3cIGQeHs3joujW/2Oc6MtlxbF5dfNc=
+golang.org/x/tools v0.12.0/go.mod h1:Sc0INKfu04TlqNoRA1hgpFZbhYXHPr4V5DzpSBTPqQM=
+golang.org/x/tools v0.13.0 h1:Iey4qkscZuv0VvIt8E0neZjtPVQFSc870HQ448QgEmQ=
+golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

handler/com/handler.go

@@ -0,0 +1,159 @@
+package com
+
+import (
+	"context"
+	"errors"
+	"net"
+	"strings"
+	"time"
+
+	"github.com/go-gost/core/chain"
+	"github.com/go-gost/core/handler"
+	"github.com/go-gost/core/logger"
+	md "github.com/go-gost/core/metadata"
+	xnet "github.com/go-gost/x/internal/net"
+	"github.com/go-gost/x/registry"
+	goserial "github.com/tarm/serial"
+)
+
+func init() {
+	registry.HandlerRegistry().Register("com", NewHandler)
+}
+
+type comHandler struct {
+	hop     chain.Hop
+	router  *chain.Router
+	md      metadata
+	options handler.Options
+}
+
+func NewHandler(opts ...handler.Option) handler.Handler {
+	options := handler.Options{}
+	for _, opt := range opts {
+		opt(&options)
+	}
+
+	return &comHandler{
+		options: options,
+	}
+}
+
+func (h *comHandler) Init(md md.Metadata) (err error) {
+	if err = h.parseMetadata(md); err != nil {
+		return
+	}
+
+	h.router = h.options.Router
+	if h.router == nil {
+		h.router = chain.NewRouter(chain.LoggerRouterOption(h.options.Logger))
+	}
+
+	return
+}
+
+// Forward implements handler.Forwarder.
+func (h *comHandler) Forward(hop chain.Hop) {
+	h.hop = hop
+}
+
+func (h *comHandler) Handle(ctx context.Context, conn net.Conn, opts ...handler.HandleOption) error {
+	defer conn.Close()
+
+	log := h.options.Logger
+
+	start := time.Now()
+	log = log.WithFields(map[string]any{
+		"remote": conn.RemoteAddr().String(),
+		"local":  conn.LocalAddr().String(),
+	})
+
+	log.Infof("%s <> %s", conn.RemoteAddr(), conn.LocalAddr())
+	defer func() {
+		log.WithFields(map[string]any{
+			"duration": time.Since(start),
+		}).Infof("%s >< %s", conn.RemoteAddr(), conn.LocalAddr())
+	}()
+
+	var target *chain.Node
+	if h.hop != nil {
+		target = h.hop.Select(ctx)
+	}
+
+	if target == nil {
+		err := errors.New("target not available")
+		log.Error(err)
+		return err
+	}
+
+	log = log.WithFields(map[string]any{
+		"node": target.Name,
+		"dst":  target.Addr,
+	})
+
+	log.Debugf("%s >> %s", conn.RemoteAddr(), target.Addr)
+
+	// serial port
+	if _, _, err := net.SplitHostPort(target.Addr); err != nil {
+		return h.forwardCom(ctx, conn, target, log)
+	}
+
+	cc, err := h.router.Dial(ctx, "tcp", target.Addr)
+	if err != nil {
+		log.Error(err)
+		if marker := target.Marker(); marker != nil {
+			marker.Mark()
+		}
+		return err
+	}
+	defer cc.Close()
+	if marker := target.Marker(); marker != nil {
+		marker.Reset()
+	}
+
+	t := time.Now()
+	log.Infof("%s <-> %s", conn.RemoteAddr(), target.Addr)
+	xnet.Transport(conn, cc)
+	log.WithFields(map[string]any{
+		"duration": time.Since(t),
+	}).Infof("%s >-< %s", conn.RemoteAddr(), target.Addr)
+
+	return nil
+}
+
+func (h *comHandler) forwardCom(ctx context.Context, conn net.Conn, target *chain.Node, log logger.Logger) error {
+	port, err := goserial.OpenPort(&goserial.Config{
+		Name:        target.Addr,
+		Baud:        h.md.baudRate,
+		Parity:      parseParity(h.md.parity),
+		ReadTimeout: h.md.timeout,
+	})
+	if err != nil {
+		return err
+	}
+
+	defer port.Close()
+
+	t := time.Now()
+	log.Infof("%s <-> %s", conn.RemoteAddr(), target.Addr)
+	xnet.Transport(conn, port)
+	log.WithFields(map[string]any{
+		"duration": time.Since(t),
+	}).Infof("%s >-< %s", conn.RemoteAddr(), target.Addr)
+
+	return nil
+}
+
+func parseParity(s string) goserial.Parity {
+	switch strings.ToLower(s) {
+	case "o", "odd":
+		return goserial.ParityOdd
+	case "e", "even":
+		return goserial.ParityEven
+	case "m", "mark":
+		return goserial.ParityMark
+	case "s", "space":
+		return goserial.ParitySpace
+	default:
+		return goserial.ParityNone
+	}
+}

handler/com/metadata.go

@@ -0,0 +1,32 @@
+package com
+
+import (
+	"time"
+
+	mdata "github.com/go-gost/core/metadata"
+	mdutil "github.com/go-gost/core/metadata/util"
+)
+
+const (
+	defaultBaudRate = 9600
+	defaultParity   = "odd"
+)
+
+type metadata struct {
+	baudRate int
+	parity   string
+	timeout  time.Duration
+}
+
+func (h *comHandler) parseMetadata(md mdata.Metadata) (err error) {
+	h.md.baudRate = mdutil.GetInt(md, "baud", "com.baud", "handler.com.baud")
+	if h.md.baudRate <= 0 {
+		h.md.baudRate = defaultBaudRate
+	}
+	h.md.parity = mdutil.GetString(md, "parity", "com.parity", "handler.com.parity")
+	if h.md.parity == "" {
+		h.md.parity = defaultParity
+	}
+	h.md.timeout = mdutil.GetDuration(md, "timeout", "com.timeout", "handler.com.timeout")
+	return
+}

listener/com/conn.go

@@ -0,0 +1,63 @@
+package com
+
+import (
+	"context"
+	"errors"
+	"io"
+	"net"
+	"time"
+)
+
+type conn struct {
+	port   io.ReadWriteCloser
+	laddr  net.Addr
+	raddr  net.Addr
+	cancel context.CancelFunc
+}
+
+func (c *conn) Read(b []byte) (n int, err error) {
+	return c.port.Read(b)
+}
+
+func (c *conn) Write(b []byte) (n int, err error) {
+	return c.port.Write(b)
+}
+
+func (c *conn) LocalAddr() net.Addr {
+	return c.laddr
+}
+
+func (c *conn) RemoteAddr() net.Addr {
+	return c.raddr
+}
+
+func (c *conn) SetDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "com", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}
+
+func (c *conn) SetReadDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "com", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}
+
+func (c *conn) SetWriteDeadline(t time.Time) error {
+	return &net.OpError{Op: "set", Net: "com", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
+}
+
+func (c *conn) Close() (err error) {
+	if c.cancel != nil {
+		c.cancel()
+	}
+	return c.port.Close()
+}
+
+type comAddr struct {
+	port string
+}
+
+func (a *comAddr) Network() string {
+	return "com"
+}
+
+func (a *comAddr) String() string {
+	return a.port
+}

listener/com/listener.go

@@ -0,0 +1,142 @@
+package com
+
+import (
+	"context"
+	"net"
+	"strings"
+	"time"
+
+	"github.com/go-gost/core/listener"
+	"github.com/go-gost/core/logger"
+	md "github.com/go-gost/core/metadata"
+	limiter "github.com/go-gost/x/limiter/traffic/wrapper"
+	metrics "github.com/go-gost/x/metrics/wrapper"
+	"github.com/go-gost/x/registry"
+	goserial "github.com/tarm/serial"
+)
+
+func init() {
+	registry.ListenerRegistry().Register("com", NewListener)
+}
+
+type comListener struct {
+	cqueue  chan net.Conn
+	closed  chan struct{}
+	addr    net.Addr
+	logger  logger.Logger
+	md      metadata
+	options listener.Options
+}
+
+func NewListener(opts ...listener.Option) listener.Listener {
+	options := listener.Options{}
+	for _, opt := range opts {
+		opt(&options)
+	}
+
+	if options.Addr == "" {
+		options.Addr = defaultPort
+	}
+
+	return &comListener{
+		logger:  options.Logger,
+		options: options,
+	}
+}
+
+func (l *comListener) Init(md md.Metadata) (err error) {
+	if err = l.parseMetadata(md); err != nil {
+		return
+	}
+
+	l.addr = &comAddr{port: l.options.Addr}
+
+	l.cqueue = make(chan net.Conn)
+	l.closed = make(chan struct{})
+
+	go l.listenLoop()
+
+	return
+}
+
+func (l *comListener) Accept() (conn net.Conn, err error) {
+	select {
+	case conn := <-l.cqueue:
+		return conn, nil
+	case <-l.closed:
+	}
+
+	return nil, listener.ErrClosed
+}
+
+func (l *comListener) Addr() net.Addr {
+	return l.addr
+}
+
+func (l *comListener) Close() error {
+	select {
+	case <-l.closed:
+		return net.ErrClosed
+	default:
+		close(l.closed)
+	}
+	return nil
+}
+
+func (l *comListener) listenLoop() {
+	for {
+		ctx, cancel := context.WithCancel(context.Background())
+		err := func() error {
+			port, err := goserial.OpenPort(&goserial.Config{
+				Name:        l.options.Addr,
+				Baud:        l.md.baudRate,
+				Parity:      parseParity(l.md.parity),
+				ReadTimeout: l.md.timeout,
+			})
+			if err != nil {
+				return err
+			}
+
+			var c net.Conn
+			c = &conn{
+				port:   port,
+				laddr:  l.addr,
+				raddr:  l.addr,
+				cancel: cancel,
+			}
+			c = metrics.WrapConn(l.options.Service, c)
+			c = limiter.WrapConn(l.options.TrafficLimiter, c)
+
+			l.cqueue <- c
+
+			return nil
+		}()
+		if err != nil {
+			l.logger.Error(err)
+			cancel()
+		}
+
+		select {
+		case <-ctx.Done():
+		case <-l.closed:
+			return
+		}
+
+		time.Sleep(time.Second)
+	}
+}
+
+func parseParity(s string) goserial.Parity {
+	switch strings.ToLower(s) {
+	case "o", "odd":
+		return goserial.ParityOdd
+	case "e", "even":
+		return goserial.ParityEven
+	case "m", "mark":
+		return goserial.ParityMark
+	case "s", "space":
+		return goserial.ParitySpace
+	default:
+		return goserial.ParityNone
+	}
+}

listener/com/metadata.go

@@ -0,0 +1,33 @@
+package com
+
+import (
+	"time"
+
+	md "github.com/go-gost/core/metadata"
+	mdutil "github.com/go-gost/core/metadata/util"
+)
+
+const (
+	defaultPort     = "COM1"
+	defaultBaudRate = 9600
+	defaultParity   = "odd"
+)
+
+type metadata struct {
+	baudRate int
+	parity   string
+	timeout  time.Duration
+}
+
+func (l *comListener) parseMetadata(md md.Metadata) (err error) {
+	l.md.baudRate = mdutil.GetInt(md, "baud", "com.baud", "listener.com.baud")
+	if l.md.baudRate <= 0 {
+		l.md.baudRate = defaultBaudRate
+	}
+	l.md.parity = mdutil.GetString(md, "parity", "com.parity", "listener.com.parity")
+	if l.md.parity == "" {
+		l.md.parity = defaultParity
+	}
+	l.md.timeout = mdutil.GetDuration(md, "timeout", "com.timeout", "listener.com.timeout")
+	return
+}