sftpfs: add more ciphers, KEXs and MACs

they are negotiated according to the order.
Restrictions are generally configured server side.
I want to avoid to expose other settings for now.

Fixes #817

Signed-off-by: Nicola Murino <[email protected]>

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/Azure/azure-storage-blob-go v0.15.0
 	github.com/GehirnInc/crypt v0.0.0-20200316065508-bb7000b8a962
 	github.com/alexedwards/argon2id v0.0.0-20211130144151-3585854a6387
-	github.com/aws/aws-sdk-go v1.44.4
+	github.com/aws/aws-sdk-go v1.44.8
 	github.com/cockroachdb/cockroach-go/v2 v2.2.8
 	github.com/eikenb/pipeat v0.0.0-20210730190139-06b3e6902001
 	github.com/fclairamb/ftpserverlib v0.18.0
@@ -21,11 +21,11 @@ require (
 	github.com/google/uuid v1.3.0
 	github.com/grandcat/zeroconf v1.0.0
 	github.com/hashicorp/go-hclog v1.2.0
-	github.com/hashicorp/go-plugin v1.4.3
+	github.com/hashicorp/go-plugin v1.4.4
 	github.com/hashicorp/go-retryablehttp v0.7.1
 	github.com/jlaffaye/ftp v0.0.0-20201112195030-9aae4d151126
-	github.com/klauspost/compress v1.15.2
-	github.com/lestrrat-go/jwx v1.2.23
+	github.com/klauspost/compress v1.15.3
+	github.com/lestrrat-go/jwx v1.2.24
 	github.com/lib/pq v1.10.5
 	github.com/lithammer/shortuuid/v3 v3.0.7
 	github.com/mattn/go-sqlite3 v1.14.12
@@ -40,7 +40,7 @@ require (
 	github.com/rs/xid v1.4.0
 	github.com/rs/zerolog v1.26.2-0.20220312163309-e9344a8c507b
 	github.com/sftpgo/sdk v0.1.0
-	github.com/shirou/gopsutil/v3 v3.22.3
+	github.com/shirou/gopsutil/v3 v3.22.4
 	github.com/spf13/afero v1.8.2
 	github.com/spf13/cobra v1.4.0
 	github.com/spf13/viper v1.11.0
@@ -54,14 +54,14 @@ require (
 	gocloud.dev v0.25.0
 	golang.org/x/crypto v0.0.0-20220427172511-eb4f295cb31f
 	golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4
-	golang.org/x/sys v0.0.0-20220429233432-b5fbb4746d32
+	golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6
 	golang.org/x/time v0.0.0-20220411224347-583f2d630306
-	google.golang.org/api v0.77.0
+	google.golang.org/api v0.78.0
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 )
 
 require (
-	cloud.google.com/go v0.101.0 // indirect
+	cloud.google.com/go v0.101.1 // indirect
 	cloud.google.com/go/compute v1.6.1 // indirect
 	cloud.google.com/go/iam v0.3.0 // indirect
 	github.com/Azure/azure-pipeline-go v0.2.3 // indirect
@@ -130,7 +130,7 @@ require (
 	golang.org/x/tools v0.1.10 // indirect
 	golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20220429170224-98d788798c3e // indirect
+	google.golang.org/genproto v0.0.0-20220505152158-f39f71e6c8f3 // indirect
 	google.golang.org/grpc v1.46.0 // indirect
 	google.golang.org/protobuf v1.28.0 // indirect
 	gopkg.in/ini.v1 v1.66.4 // indirect

go.sum

@@ -31,8 +31,8 @@ cloud.google.com/go v0.97.0/go.mod h1:GF7l59pYBVlXQIBLx3a761cZ41F9bBH3JUlihCt2Ud
 cloud.google.com/go v0.99.0/go.mod h1:w0Xx2nLzqWJPuozYQX+hFfCSI8WioryfRDzkoI/Y2ZA=
 cloud.google.com/go v0.100.1/go.mod h1:fs4QogzfH5n2pBXBP9vRiU+eCny7lD2vmFZy79Iuw1U=
 cloud.google.com/go v0.100.2/go.mod h1:4Xra9TjzAeYHrl5+oeLlzbM2k3mjVhZh4UqTZ//w99A=
-cloud.google.com/go v0.101.0 h1:g+LL+JvpvdyGtcaD2xw2mSByE/6F9s471eJSoaysM84=
-cloud.google.com/go v0.101.0/go.mod h1:hEiddgDb77jDQ+I80tURYNJEnuwPzFU8awCFFRLKjW0=
+cloud.google.com/go v0.101.1 h1:3+/0TAm9JD/PyhkrDWQWi2L197h3euCsM+H+J4iYTR8=
+cloud.google.com/go v0.101.1/go.mod h1:55HwjsGW4CHD3JrNuMdZtSDsgTs0CuCB/bBTugD+7AA=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
 cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
@@ -141,8 +141,8 @@ github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgI
 github.com/aws/aws-sdk-go v1.15.27/go.mod h1:mFuSZ37Z9YOHbQEwBWztmVzqXrEkub65tZoCYDt7FT0=
 github.com/aws/aws-sdk-go v1.37.0/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
 github.com/aws/aws-sdk-go v1.43.31/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
-github.com/aws/aws-sdk-go v1.44.4 h1:ePN0CVJMdiz2vYUcJH96eyxRrtKGSDMgyhP6rah2OgE=
-github.com/aws/aws-sdk-go v1.44.4/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
+github.com/aws/aws-sdk-go v1.44.8 h1:Fc8lFiP97MjB/BFaeZ7ixAjkqrNoic/qvlRqqJb5cxY=
+github.com/aws/aws-sdk-go v1.44.8/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
 github.com/aws/aws-sdk-go-v2 v1.16.2/go.mod h1:ytwTPBG6fXTZLxxeeCCWj2/EMYp/xDUgX+OET6TLNNU=
 github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.1/go.mod h1:n8Bs1ElDD2wJ9kCRTczA83gYbBmjSwZp3umc6zF4EeM=
 github.com/aws/aws-sdk-go-v2/config v1.15.3/go.mod h1:9YL3v07Xc/ohTsxFXzan9ZpFpdTOFl4X65BAKYaz8jg=
@@ -298,7 +298,6 @@ github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22
 github.com/gobwas/pool v0.2.0/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
 github.com/gobwas/ws v1.0.2/go.mod h1:szmBTxLgaFppYjEmNtny/v3w89xOydFnnZMcgRRu/EM=
 github.com/goccy/go-json v0.7.6/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
-github.com/goccy/go-json v0.9.6/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/goccy/go-json v0.9.7 h1:IcB+Aqpx/iMHu5Yooh7jEzJk1JZ7Pjtmys2ukPr7EeM=
 github.com/goccy/go-json v0.9.7/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
@@ -436,8 +435,9 @@ github.com/hashicorp/go-immutable-radix v1.3.1/go.mod h1:0y9vanUI8NX6FsYoO3zeMjh
 github.com/hashicorp/go-msgpack v0.5.3/go.mod h1:ahLV/dePpqEmjfWmKiqvPkv/twdG7iPBM1vqhUKIvfM=
 github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
 github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+vmowP0z+KUhOZdA=
-github.com/hashicorp/go-plugin v1.4.3 h1:DXmvivbWD5qdiBts9TpBC7BYL1Aia5sxbRgQB+v6UZM=
 github.com/hashicorp/go-plugin v1.4.3/go.mod h1:5fGEH17QVwTTcR0zV7yhDPLLmFX9YSZ38b18Udy6vYQ=
+github.com/hashicorp/go-plugin v1.4.4 h1:NVdrSdFRt3SkZtNckJ6tog7gbpRrcbOjQi/rgF7JYWQ=
+github.com/hashicorp/go-plugin v1.4.4/go.mod h1:viDMjcLJuDui6pXb8U4HVfb8AamCWhHGUjr2IrTF67s=
 github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
 github.com/hashicorp/go-retryablehttp v0.7.1 h1:sUiuQAnLlbvmExtFQs72iFW/HXeUn8Z1aJLQ4LJJbTQ=
 github.com/hashicorp/go-retryablehttp v0.7.1/go.mod h1:vAew36LZh98gCBJNLH42IQ1ER/9wtLZZ8meHqQvEYWY=
@@ -542,8 +542,8 @@ github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/klauspost/compress v1.10.3/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
 github.com/klauspost/compress v1.15.1/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
-github.com/klauspost/compress v1.15.2 h1:3WH+AG7s2+T8o3nrM/8u2rdqUEcQhmga7smjrT41nAw=
-github.com/klauspost/compress v1.15.2/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHUDtV4Yw2GlzU=
+github.com/klauspost/compress v1.15.3 h1:wmfu2iqj9q22SyMINp1uQ8C2/V4M1phJdmH9fG4nba0=
+github.com/klauspost/compress v1.15.3/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHUDtV4Yw2GlzU=
 github.com/klauspost/cpuid/v2 v2.0.4/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.0.12 h1:p9dKCg8i4gmOxtv35DvrYoWqYzQrvEVdjQ762Y0OqZE=
 github.com/klauspost/cpuid/v2 v2.0.12/go.mod h1:g2LTdtYhdyuGPqyWyv7qRAmj1WBqxuObKfj5c0PQa7c=
@@ -576,8 +576,8 @@ github.com/lestrrat-go/iter v1.0.1/go.mod h1:zIdgO1mRKhn8l9vrZJZz9TUMMFbQbLeTsbq
 github.com/lestrrat-go/iter v1.0.2 h1:gMXo1q4c2pHmC3dn8LzRhJfP1ceCbgSiT9lUydIzltI=
 github.com/lestrrat-go/iter v1.0.2/go.mod h1:Momfcq3AnRlRjI5b5O8/G5/BvpzrhoFTZcn06fEOPt4=
 github.com/lestrrat-go/jwx v1.2.6/go.mod h1:tJuGuAI3LC71IicTx82Mz1n3w9woAs2bYJZpkjJQ5aU=
-github.com/lestrrat-go/jwx v1.2.23 h1:8oP5fY1yzCRraUNNyfAVdOkLCqY7xMZz11lVcvHqC1Y=
-github.com/lestrrat-go/jwx v1.2.23/go.mod h1:sAXjRwzSvCN6soO4RLoWWm1bVPpb8iOuv0IYfH8OWd8=
+github.com/lestrrat-go/jwx v1.2.24 h1:N6Qsn6TUsDzz+qgS/1xcfBtkQfnbwW01fLFJpuYgKsg=
+github.com/lestrrat-go/jwx v1.2.24/go.mod h1:zoNuZymNl5lgdcu6P7K6ie2QRll5HVfF4xwxBBK1NxY=
 github.com/lestrrat-go/option v1.0.0 h1:WqAWL8kh8VcSoD6xjSH34/1m8yxluXQbDeKNfvFeEO4=
 github.com/lestrrat-go/option v1.0.0/go.mod h1:5ZHFbivi4xwXxhxY9XHDe2FHo6/Z7WWmtT7T5nBBp3I=
 github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
@@ -742,8 +742,8 @@ github.com/secsy/goftp v0.0.0-20200609142545-aa2de14babf4 h1:PT+ElG/UUFMfqy5HrxJ
 github.com/secsy/goftp v0.0.0-20200609142545-aa2de14babf4/go.mod h1:MnkX001NG75g3p8bhFycnyIjeQoOjGL6CEIsdE/nKSY=
 github.com/sftpgo/sdk v0.1.0 h1:t94VfxsmNbCYLYRDr3x/UTwSbFFtL9DJ171zkQ3MchQ=
 github.com/sftpgo/sdk v0.1.0/go.mod h1:Bhgac6kiwIziILXLzH4wepT8lQXyhF83poDXqZorN6Q=
-github.com/shirou/gopsutil/v3 v3.22.3 h1:UebRzEomgMpv61e3hgD1tGooqX5trFbdU/ehphbHd00=
-github.com/shirou/gopsutil/v3 v3.22.3/go.mod h1:D01hZJ4pVHPpCTZ3m3T2+wDF2YAGfd+H4ifUguaQzHM=
+github.com/shirou/gopsutil/v3 v3.22.4 h1:srAQaiX6jX/cYL6q29aE0m8lOskT9CurZ9N61YR3yoI=
+github.com/shirou/gopsutil/v3 v3.22.4/go.mod h1:D01hZJ4pVHPpCTZ3m3T2+wDF2YAGfd+H4ifUguaQzHM=
 github.com/shopspring/decimal v0.0.0-20180709203117-cd690d0c9e24/go.mod h1:M+9NzErvs504Cn4c5DxATwIqPbtswREoFCre64PpcG4=
 github.com/shopspring/decimal v0.0.0-20200227202807-02e2044944cc/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
 github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
@@ -1003,8 +1003,9 @@ golang.org/x/sys v0.0.0-20220328115105-d36c6a25d886/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220422013727-9388b58f7150/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220429233432-b5fbb4746d32 h1:Js08h5hqB5xyWR789+QqueR6sDE8mk+YvpETZ+F6X9Y=
-golang.org/x/sys v0.0.0-20220429233432-b5fbb4746d32/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220502124256-b6088ccd6cba/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6 h1:nonptSpoQ4vQjyraW20DXPAglgQfVnM9ZC6MmNLMR60=
+golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -1144,8 +1145,9 @@ google.golang.org/api v0.70.0/go.mod h1:Bs4ZM2HGifEvXwd50TtW70ovgJffJYw2oRCOFU/S
 google.golang.org/api v0.71.0/go.mod h1:4PyU6e6JogV1f9eA4voyrTY2batOLdgZ5qZ5HOCc4j8=
 google.golang.org/api v0.74.0/go.mod h1:ZpfMZOVRMywNyvJFeqL9HRWBgAuRfSjJFpe9QtRRyDs=
 google.golang.org/api v0.75.0/go.mod h1:pU9QmyHLnzlpar1Mjt4IbapUCy8J+6HD6GeELN69ljA=
-google.golang.org/api v0.77.0 h1:msijLTxwkJ7Jub5tv9KBVCKtHOQwnvnvkX7ErFFCVxY=
 google.golang.org/api v0.77.0/go.mod h1:pU9QmyHLnzlpar1Mjt4IbapUCy8J+6HD6GeELN69ljA=
+google.golang.org/api v0.78.0 h1:5ewPyCwP43C3i8B6C2Kb+eVAevbnke2xR8VbcSWjS4I=
+google.golang.org/api v0.78.0/go.mod h1:1Sg78yoMLOhlQTeF+ARBoytAcH1NNyyl390YMy6rKmw=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -1245,8 +1247,10 @@ google.golang.org/genproto v0.0.0-20220407144326-9054f6ed7bac/go.mod h1:8w6bsBMX
 google.golang.org/genproto v0.0.0-20220413183235-5e96e2839df9/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
 google.golang.org/genproto v0.0.0-20220414192740-2d67ff6cf2b4/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
 google.golang.org/genproto v0.0.0-20220421151946-72621c1f0bd3/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
-google.golang.org/genproto v0.0.0-20220429170224-98d788798c3e h1:gMjH4zLGs9m+dGzR7qHCHaXMOwsJHJKKkHtyXhtOrJk=
 google.golang.org/genproto v0.0.0-20220429170224-98d788798c3e/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
+google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21/go.mod h1:RAyBrSAP7Fh3Nc84ghnVLDPuV51xc9agzmm4Ph6i0Q4=
+google.golang.org/genproto v0.0.0-20220505152158-f39f71e6c8f3 h1:q1kiSVscqoDeqTF27eQ2NnLLDmqF0I373qQNXYMy0fo=
+google.golang.org/genproto v0.0.0-20220505152158-f39f71e6c8f3/go.mod h1:RAyBrSAP7Fh3Nc84ghnVLDPuV51xc9agzmm4Ph6i0Q4=
 google.golang.org/grpc v1.8.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=

version/version.go

@@ -2,7 +2,7 @@ package version
 
 import "strings"
 
-const version = "2.2.3"
+const version = "2.2.3-dev"
 
 var (
 	commit = ""

vfs/sftpfs.go

@@ -791,6 +791,17 @@ func (fs *SFTPFs) createConnection() error {
 	if fs.config.Password.GetPayload() != "" {
 		clientConfig.Auth = append(clientConfig.Auth, ssh.Password(fs.config.Password.GetPayload()))
 	}
+	// add more ciphers, KEXs and MACs, they are negotiated according to the order
+	clientConfig.Ciphers = []string{"[email protected]", "[email protected]", "[email protected]",
+		"aes128-ctr", "aes192-ctr", "aes256-ctr", "aes128-cbc", "aes192-cbc", "aes256-cbc"}
+	clientConfig.KeyExchanges = []string{"curve25519-sha256", "[email protected]",
+		"ecdh-sha2-nistp256", "ecdh-sha2-nistp384", "ecdh-sha2-nistp521",
+		"diffie-hellman-group14-sha256", "diffie-hellman-group16-sha512", "diffie-hellman-group18-sha512",
+		"diffie-hellman-group-exchange-sha256", "diffie-hellman-group-exchange-sha1",
+		"diffie-hellman-group14-sha1", "diffie-hellman-group1-sha1"}
+	clientConfig.MACs = []string{"[email protected]", "hmac-sha2-256",
+		"[email protected]", "hmac-sha2-512",
+		"hmac-sha1", "hmac-sha1-96"}
 	fs.sshClient, err = ssh.Dial("tcp", fs.config.Endpoint, clientConfig)
 	if err != nil {
 		fsLog(fs, logger.LevelError, "unable to connect: %v", err)