diff --git a/go.mod b/go.mod index fb02b35..67f57c2 100644 --- a/go.mod +++ b/go.mod @@ -15,9 +15,9 @@ require ( github.com/sirupsen/logrus v1.9.3 github.com/urfave/cli v1.22.5 github.com/vishvananda/netlink v1.1.0 - github.com/wmnsk/go-gtp v0.8.0 - golang.org/x/net v0.25.0 - golang.org/x/sys v0.20.0 + github.com/wmnsk/go-gtp v0.8.11-0.20240705144331-f53bfdd4233b + golang.org/x/net v0.27.0 + golang.org/x/sys v0.22.0 gopkg.in/yaml.v2 v2.4.0 ) @@ -48,10 +48,10 @@ require ( github.com/tim-ywliu/nested-logrus-formatter v1.3.2 // indirect github.com/twitchyliquid64/golang-asm v0.15.1 // indirect github.com/ugorji/go/codec v1.2.12 // indirect - github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df // indirect + github.com/vishvananda/netns v0.0.4 // indirect golang.org/x/arch v0.8.0 // indirect - golang.org/x/crypto v0.23.0 // indirect - golang.org/x/text v0.15.0 // indirect + golang.org/x/crypto v0.25.0 // indirect + golang.org/x/text v0.16.0 // indirect google.golang.org/protobuf v1.34.1 // indirect gopkg.in/yaml.v3 v3.0.1 // indirect ) diff --git a/go.sum b/go.sum index 39c8c38..d93d4cd 100644 --- a/go.sum +++ b/go.sum @@ -1,37 +1,19 @@ -cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= -github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= -github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= -github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= -github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= -github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho= github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d h1:Byv0BzEl3/e6D5CLfI0j/7hiIEtvGVFPCZ7Ei2oq8iQ= github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw= -github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= -github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8= -github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw= github.com/bytedance/sonic v1.11.6 h1:oUp34TzMlL+OY1OUWxHqsdkgC/Zfc85zGqw9siXjrc0= github.com/bytedance/sonic v1.11.6/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4= github.com/bytedance/sonic/loader v0.1.1 h1:c+e5Pt1k/cy5wMveRDyk2X4B9hF4g7an8N3zCYjJFNM= github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU= -github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= -github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= -github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= github.com/cloudwego/base64x v0.1.4 h1:jwCgWpFanWmN8xoIUHa2rtzmkd5J2plF/dnLS6Xd/0Y= github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w= github.com/cloudwego/iasm v0.2.0 h1:1KNIy1I1H9hNNFEEH3DVnI4UujN+1zjpuk6gwHLTssg= github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY= -github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY= github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= -github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= -github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/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/free5gc/aper v1.0.6-0.20240503143507-2c4c4780b98f h1:sO8FFwAq7feSw/vKN9ioY+fX1gNTXd6/xQOqaeclzsA= github.com/free5gc/aper v1.0.6-0.20240503143507-2c4c4780b98f/go.mod h1:oh3dtNsje2W4/q3pfidMWQKXbXIehXK3t6CD9tXmHx0= github.com/free5gc/ngap v1.0.9-0.20240708062829-734d184eed74 h1:foSd3OVtTfDmn3EZbsBngK+U93Mv8YE+qSja7FvKEVU= @@ -50,12 +32,6 @@ github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI= github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU= github.com/gin-gonic/gin v1.10.0/go.mod h1:4PMNQiOhvDRa013RKVbsiNwoyezlm2rm0uX/T7kzp5Y= -github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as= -github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as= -github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY= -github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE= -github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk= -github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A= github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s= github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4= github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA= @@ -64,117 +40,55 @@ github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJn github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY= github.com/go-playground/validator/v10 v10.20.0 h1:K9ISHbSaI0lyB2eWMPJo+kOS/FBExVwjEviJTixqxL8= github.com/go-playground/validator/v10 v10.20.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM= -github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU= github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I= -github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ= github.com/golang-jwt/jwt v3.2.1+incompatible h1:73Z+4BJcrTC+KczS6WvTPvRGOp1WmfEP4Q1lOd9Z/+c= github.com/golang-jwt/jwt v3.2.1+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I= github.com/golang-jwt/jwt/v5 v5.2.1 h1:OuVbFODueb089Lh128TAcimifWaLhJwVflnrgM17wHk= github.com/golang-jwt/jwt/v5 v5.2.1/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk= -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 v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= -github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= -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 v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8= -github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI= -github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI= -github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= -github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= -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/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= -github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= -github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU= -github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= +github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= -github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= -github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4= -github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU= -github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= -github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM= github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo= -github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w= -github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM= github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg= github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM= github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws= github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M= 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-golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= -golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4= -golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= -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/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= -google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc= -google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo= -google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= -google.golang.org/grpc v1.23.0/go.mod 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h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= -honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50= rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4= diff --git a/internal/ngap/gtp.go b/internal/ngap/gtp.go deleted file mode 100644 index 680087c..0000000 --- a/internal/ngap/gtp.go +++ /dev/null @@ -1,139 +0,0 @@ -package ngap - -import ( - "net" - "runtime/debug" - - "github.com/pkg/errors" - gtp "github.com/wmnsk/go-gtp/gtpv1" - gtpMsg "github.com/wmnsk/go-gtp/gtpv1/message" - "golang.org/x/net/ipv4" - - "github.com/free5gc/n3iwf/internal/gre" - gtpQoSMsg "github.com/free5gc/n3iwf/internal/gtp/message" - "github.com/free5gc/n3iwf/internal/logger" -) - -// set up GTP connection with UPF -func (s *Server) setupGTPTunnelWithUPF( - upfIPAddr string, -) (*gtp.UPlaneConn, net.Addr, error) { - gtpLog := logger.GTPLog - cfg := s.Config() - - // Set up GTP connection - upfUDPAddr := upfIPAddr + gtp.GTPUPort - - remoteUDPAddr, err := net.ResolveUDPAddr("udp", upfUDPAddr) - if err != nil { - gtpLog.Errorf("Resolve UDP address %s failed: %+v", upfUDPAddr, err) - return nil, nil, errors.Errorf("Resolve Address Failed") - } - - n3iwfUDPAddr := cfg.GetGTPBindAddr() + gtp.GTPUPort - - localUDPAddr, err := net.ResolveUDPAddr("udp", n3iwfUDPAddr) - if err != nil { - gtpLog.Errorf("Resolve UDP address %s failed: %+v", n3iwfUDPAddr, err) - return nil, nil, errors.Errorf("Resolve Address Failed") - } - - // Dial to UPF - userPlaneConnection, err := gtp.DialUPlane( - s.CancelContext(), localUDPAddr, remoteUDPAddr) - if err != nil { - gtpLog.Errorf("Dial to UPF failed: %+v", err) - return nil, nil, errors.Errorf("Dial failed") - } - - // Overwrite T-PDU handler for supporting extension header containing QoS parameters - userPlaneConnection.AddHandler(gtpMsg.MsgTypeTPDU, s.handleQoSTPDU) - - return userPlaneConnection, remoteUDPAddr, nil -} - -// Parse the fields not supported by go-gtp and forward data to UE. -func (s *Server) handleQoSTPDU(c gtp.Conn, senderAddr net.Addr, msg gtpMsg.Message) error { - pdu := gtpQoSMsg.QoSTPDUPacket{} - err := pdu.Unmarshal(msg.(*gtpMsg.TPDU)) - if err != nil { - return err - } - - s.forward(pdu) - return nil -} - -// Forward user plane packets from N3 to UE with GRE header and new IP header encapsulated -func (s *Server) forward(packet gtpQoSMsg.QoSTPDUPacket) { - gtpLog := logger.GTPLog - - defer func() { - if p := recover(); p != nil { - // Print stack for panic to log. Fatalf() will let program exit. - gtpLog.Fatalf("panic: %v\n%s", p, string(debug.Stack())) - } - }() - - // N3IWF context - self := s.Context() - - pktTEID := packet.GetTEID() - gtpLog.Tracef("pkt teid : %d", pktTEID) - - // Find UE information - ranUe, ok := self.AllocatedUETEIDLoad(pktTEID) - if !ok { - gtpLog.Errorf("Cannot find RanUE context from QosPacket TEID : %+v", pktTEID) - return - } - - ikeUe, err := self.IkeUeLoadFromNgapId(ranUe.RanUeNgapId) - if err != nil { - gtpLog.Errorf("Cannot find IkeUe context from RanUe , NgapID : %+v", ranUe.RanUeNgapId) - return - } - - // UE inner IP in IPSec - ueInnerIPAddr := ikeUe.IPSecInnerIPAddr - - var cm *ipv4.ControlMessage - for _, childSA := range ikeUe.N3IWFChildSecurityAssociation { - pdusession := ranUe.FindPDUSession(childSA.PDUSessionIds[0]) - if pdusession != nil && pdusession.GTPConnection.IncomingTEID == pktTEID { - gtpLog.Tracef("forwarding IPSec xfrm interfaceid : %d", childSA.XfrmIface.Attrs().Index) - cm = &ipv4.ControlMessage{ - IfIndex: childSA.XfrmIface.Attrs().Index, - } - break - } - } - - var ( - qfi uint8 - rqi bool - ) - - // QoS Related Parameter - if packet.HasQoS() { - qfi, rqi = packet.GetQoSParameters() - gtpLog.Tracef("QFI: %v, RQI: %v", qfi, rqi) - } - - // Encasulate IPv4 packet with GRE header before forward to UE through IPsec - grePacket := gre.GREPacket{} - - // TODO:[24.502(v15.7) 9.3.3 ] The Protocol Type field should be set to zero - grePacket.SetPayload(packet.GetPayload(), gre.IPv4) - grePacket.SetQoS(qfi, rqi) - forwardData := grePacket.Marshal() - - // Send to UE through Nwu - if n, err := s.NwuupIPv4PktConn().WriteTo(forwardData, cm, ueInnerIPAddr); err != nil { - gtpLog.Errorf("Write to UE failed: %+v", err) - return - } else { - gtpLog.Trace("Forward NWu <- N3") - gtpLog.Tracef("Wrote %d bytes", n) - } -} diff --git a/internal/ngap/handler.go b/internal/ngap/handler.go index 6273dd4..d462b56 100644 --- a/internal/ngap/handler.go +++ b/internal/ngap/handler.go @@ -5,6 +5,8 @@ import ( "net" "time" + "github.com/wmnsk/go-gtp/gtpv1" + "github.com/free5gc/aper" "github.com/free5gc/n3iwf/internal/logger" "github.com/free5gc/n3iwf/internal/ngap/message" @@ -863,75 +865,38 @@ func (s *Server) handlePDUSessionResourceSetupRequestTransfer( OutgoingTEID: binary.BigEndian.Uint32(ulNGUUPTNLInformation.GTPTunnel.GTPTEID.Value), } - if userPlaneConnection, ok := n3iwfCtx.GTPConnectionWithUPFLoad(upfIPv4); ok { - // UPF UDP address - upfUDPAddr, err := net.ResolveUDPAddr("udp", upfIPv4+":2152") + // UPF UDP address + upfAddr := upfIPv4 + gtpv1.GTPUPort + upfUDPAddr, err := net.ResolveUDPAddr("udp", upfAddr) + if err != nil { + ngapLog.Errorf("Resolve UPF addr [%s] failed: %v", upfAddr, err) + cause := message.BuildCause(ngapType.CausePresentTransport, + ngapType.CauseTransportPresentTransportResourceUnavailable) + responseTransfer, err := message.BuildPDUSessionResourceSetupUnsuccessfulTransfer(*cause, nil) if err != nil { - ngapLog.Errorf("Resolve UDP address failed: %v", err) - cause := message.BuildCause(ngapType.CausePresentTransport, - ngapType.CauseTransportPresentTransportResourceUnavailable) - responseTransfer, err := message.BuildPDUSessionResourceSetupUnsuccessfulTransfer(*cause, nil) - if err != nil { - ngapLog.Errorf("Build PDUSessionResourceSetupUnsuccessfulTransfer Error: %v\n", err) - } - return false, responseTransfer - } - - // UE TEID - ueTEID := n3iwfCtx.NewTEID(ranUe) - if ueTEID == 0 { - ngapLog.Error("Invalid TEID (0).") - cause := message.BuildCause( - ngapType.CausePresentProtocol, - ngapType.CauseProtocolPresentUnspecified) - responseTransfer, err := message.BuildPDUSessionResourceSetupUnsuccessfulTransfer(*cause, nil) - if err != nil { - ngapLog.Errorf("Build PDUSessionResourceSetupUnsuccessfulTransfer Error: %v\n", err) - } - return false, responseTransfer + ngapLog.Errorf("Build PDUSessionResourceSetupUnsuccessfulTransfer Error: %v\n", err) } + return false, responseTransfer + } - // Set UE associated GTP connection - gtpConnection.UPFUDPAddr = upfUDPAddr - gtpConnection.IncomingTEID = ueTEID - gtpConnection.UserPlaneConnection = userPlaneConnection - } else { - // Setup GTP connection with UPF - userPlaneConnection, upfUDPAddr, err := s.setupGTPTunnelWithUPF(upfIPv4) + // UE TEID + ueTEID := n3iwfCtx.NewTEID(ranUe) + if ueTEID == 0 { + ngapLog.Error("Invalid TEID (0).") + cause := message.BuildCause( + ngapType.CausePresentProtocol, + ngapType.CauseProtocolPresentUnspecified) + responseTransfer, err := message.BuildPDUSessionResourceSetupUnsuccessfulTransfer(*cause, nil) if err != nil { - ngapLog.Errorf("Setup GTP connection with UPF failed: %v", err) - cause := message.BuildCause(ngapType.CausePresentTransport, - ngapType.CauseTransportPresentTransportResourceUnavailable) - responseTransfer, err := message.BuildPDUSessionResourceSetupUnsuccessfulTransfer(*cause, nil) - if err != nil { - ngapLog.Errorf("Build PDUSessionResourceSetupUnsuccessfulTransfer Error: %v\n", err) - } - return false, responseTransfer - } - - // UE TEID - ueTEID := n3iwfCtx.NewTEID(ranUe) - if ueTEID == 0 { - ngapLog.Error("Invalid TEID (0).") - cause := message.BuildCause( - ngapType.CausePresentProtocol, - ngapType.CauseProtocolPresentUnspecified) - responseTransfer, err := message.BuildPDUSessionResourceSetupUnsuccessfulTransfer(*cause, nil) - if err != nil { - ngapLog.Errorf("Build PDUSessionResourceSetupUnsuccessfulTransfer Error: %v\n", err) - } - return false, responseTransfer + ngapLog.Errorf("Build PDUSessionResourceSetupUnsuccessfulTransfer Error: %v\n", err) } - - // Setup GTP connection with UPF - gtpConnection.UPFUDPAddr = upfUDPAddr - gtpConnection.IncomingTEID = ueTEID - gtpConnection.UserPlaneConnection = userPlaneConnection - - // Store GTP connection with UPF into N3IWF context - n3iwfCtx.GTPConnectionWithUPFStore(upfIPv4, userPlaneConnection) + return false, responseTransfer } + // Setup GTP connection with UPF + gtpConnection.UPFUDPAddr = upfUDPAddr + gtpConnection.IncomingTEID = ueTEID + pduSession.GTPConnection = gtpConnection } else { ngapLog.Error( diff --git a/internal/ngap/server.go b/internal/ngap/server.go index b94498e..e8e58b5 100644 --- a/internal/ngap/server.go +++ b/internal/ngap/server.go @@ -8,8 +8,6 @@ import ( "sync" "time" - "golang.org/x/net/ipv4" - "github.com/free5gc/n3iwf/internal/logger" "github.com/free5gc/n3iwf/internal/ngap/message" n3iwf_context "github.com/free5gc/n3iwf/pkg/context" @@ -28,7 +26,6 @@ type n3iwf interface { Context() *n3iwf_context.N3IWFContext CancelContext() context.Context IkeEvtCh() chan n3iwf_context.IkeEvt - NwuupIPv4PktConn() *ipv4.PacketConn } type Server struct { diff --git a/internal/nwuup/server.go b/internal/nwuup/server.go index 88df2bc..1be5de8 100644 --- a/internal/nwuup/server.go +++ b/internal/nwuup/server.go @@ -7,7 +7,7 @@ import ( "sync" "github.com/pkg/errors" - gtpv1 "github.com/wmnsk/go-gtp/gtpv1" + "github.com/wmnsk/go-gtp/gtpv1" gtpMsg "github.com/wmnsk/go-gtp/gtpv1/message" "golang.org/x/net/ipv4" @@ -27,8 +27,8 @@ type n3iwf interface { type Server struct { n3iwf - // N3IWF NWu interface IPv4 packet connection - IPv4PacketConn *ipv4.PacketConn + gtpuConn *gtpv1.UPlaneConn + greConn *ipv4.PacketConn } func NewServer(n3iwf n3iwf) (*Server, error) { @@ -42,6 +42,26 @@ func NewServer(n3iwf n3iwf) (*Server, error) { // with UP_IP_ADDRESS, catching GRE encapsulated packets and forward // to N3 interface. func (s *Server) Run(wg *sync.WaitGroup) error { + err := s.newGreConn() + if err != nil { + return err + } + + err = s.newGtpuConn() + if err != nil { + return err + } + + wg.Add(1) + go s.greListenAndServe(wg) + + wg.Add(1) + go s.gtpuListenAndServe(wg) + + return nil +} + +func (s *Server) newGreConn() error { cfg := s.Config() listenAddr := cfg.GetIPSecGatewayAddr() @@ -49,23 +69,135 @@ func (s *Server) Run(wg *sync.WaitGroup) error { // This socket will only capture GRE encapsulated packet connection, err := net.ListenPacket("ip4:gre", listenAddr) if err != nil { - return errors.Wrapf(err, "Error setting listen socket on %s", listenAddr) + return errors.Wrapf(err, "Error setting GRE listen socket on %s", listenAddr) } - ipv4PacketConn := ipv4.NewPacketConn(connection) - if ipv4PacketConn == nil { - return errors.Wrapf(err, "Error opening IPv4 packet connection socket on %s", listenAddr) + s.greConn = ipv4.NewPacketConn(connection) + if s.greConn == nil { + return errors.Wrapf(err, "Error opening GRE IPv4 packet connection socket on %s", listenAddr) } - s.IPv4PacketConn = ipv4PacketConn + return nil +} - wg.Add(1) - go s.listenAndServe(wg) +func (s *Server) newGtpuConn() error { + cfg := s.Config() + gtpuAddr := cfg.GetGTPBindAddr() + gtpv1.GTPUPort + + laddr, err := net.ResolveUDPAddr("udp", gtpuAddr) + if err != nil { + return errors.Wrapf(err, "Resolve GTP-U address %s Failed", gtpuAddr) + } + upConn := gtpv1.NewUPlaneConn(laddr) + // Overwrite T-PDU handler for supporting extension header containing QoS parameters + upConn.AddHandler(gtpMsg.MsgTypeTPDU, s.handleQoSTPDU) + s.gtpuConn = upConn return nil } +// Parse the fields not supported by go-gtp and forward data to UE. +func (s *Server) handleQoSTPDU(c gtpv1.Conn, senderAddr net.Addr, msg gtpMsg.Message) error { + pdu := gtpQoSMsg.QoSTPDUPacket{} + err := pdu.Unmarshal(msg.(*gtpMsg.TPDU)) + if err != nil { + return err + } + + s.forwardDL(pdu) + return nil +} + +// Forward user plane packets from N3 to UE with GRE header and new IP header encapsulated +func (s *Server) forwardDL(packet gtpQoSMsg.QoSTPDUPacket) { + gtpLog := logger.GTPLog + + defer func() { + if p := recover(); p != nil { + // Print stack for panic to log. Fatalf() will let program exit. + gtpLog.Fatalf("panic: %v\n%s", p, string(debug.Stack())) + } + }() + + n3iwfCtx := s.Context() + + pktTEID := packet.GetTEID() + gtpLog.Tracef("pkt teid : %d", pktTEID) + + // Find UE information + ranUe, ok := n3iwfCtx.AllocatedUETEIDLoad(pktTEID) + if !ok { + gtpLog.Errorf("Cannot find RanUE context from QosPacket TEID : %+v", pktTEID) + return + } + + ikeUe, err := n3iwfCtx.IkeUeLoadFromNgapId(ranUe.RanUeNgapId) + if err != nil { + gtpLog.Errorf("Cannot find IkeUe context from RanUe , NgapID : %+v", ranUe.RanUeNgapId) + return + } + + // UE inner IP in IPSec + ueInnerIPAddr := ikeUe.IPSecInnerIPAddr + + var cm *ipv4.ControlMessage + for _, childSA := range ikeUe.N3IWFChildSecurityAssociation { + pdusession := ranUe.FindPDUSession(childSA.PDUSessionIds[0]) + if pdusession != nil && pdusession.GTPConnection.IncomingTEID == pktTEID { + gtpLog.Tracef("forwarding IPSec xfrm interfaceid : %d", childSA.XfrmIface.Attrs().Index) + cm = &ipv4.ControlMessage{ + IfIndex: childSA.XfrmIface.Attrs().Index, + } + break + } + } + + var ( + qfi uint8 + rqi bool + ) + + // QoS Related Parameter + if packet.HasQoS() { + qfi, rqi = packet.GetQoSParameters() + gtpLog.Tracef("QFI: %v, RQI: %v", qfi, rqi) + } + + // Encasulate IPv4 packet with GRE header before forward to UE through IPsec + grePacket := gre.GREPacket{} + + // TODO:[24.502(v15.7) 9.3.3 ] The Protocol Type field should be set to zero + grePacket.SetPayload(packet.GetPayload(), gre.IPv4) + grePacket.SetQoS(qfi, rqi) + forwardData := grePacket.Marshal() + + // Send to UE through Nwu + if n, err := s.greConn.WriteTo(forwardData, cm, ueInnerIPAddr); err != nil { + gtpLog.Errorf("Write to UE failed: %+v", err) + return + } else { + gtpLog.Trace("Forward NWu <- N3") + gtpLog.Tracef("Wrote %d bytes", n) + } +} + +func (s *Server) gtpuListenAndServe(wg *sync.WaitGroup) { + nwuupLog := logger.NWuUPLog + defer func() { + if p := recover(); p != nil { + // Print stack for panic to log. Fatalf() will let program exit. + nwuupLog.Fatalf("panic: %v\n%s", p, string(debug.Stack())) + } + + wg.Done() + }() + + if err := s.gtpuConn.ListenAndServe(context.Background()); err != nil { + nwuupLog.Errorf("GTP-U server err: %v", err) + } +} + // listenAndServe read from socket and call forward() to // forward packet. -func (s *Server) listenAndServe(wg *sync.WaitGroup) { +func (s *Server) greListenAndServe(wg *sync.WaitGroup) { nwuupLog := logger.NWuUPLog defer func() { if p := recover(); p != nil { @@ -73,7 +205,7 @@ func (s *Server) listenAndServe(wg *sync.WaitGroup) { nwuupLog.Fatalf("panic: %v\n%s", p, string(debug.Stack())) } - err := s.IPv4PacketConn.Close() + err := s.greConn.Close() if err != nil { nwuupLog.Errorf("Error closing raw socket: %+v", err) } @@ -82,13 +214,14 @@ func (s *Server) listenAndServe(wg *sync.WaitGroup) { buffer := make([]byte, 65535) - if err := s.IPv4PacketConn.SetControlMessage(ipv4.FlagInterface|ipv4.FlagTTL, true); err != nil { + err := s.greConn.SetControlMessage(ipv4.FlagInterface|ipv4.FlagTTL, true) + if err != nil { nwuupLog.Errorf("Set control message visibility for IPv4 packet connection fail: %+v", err) return } for { - n, cm, src, err := s.IPv4PacketConn.ReadFrom(buffer) + n, cm, src, err := s.greConn.ReadFrom(buffer) nwuupLog.Tracef("Read %d bytes, %s", n, cm) if err != nil { nwuupLog.Errorf("Error read from IPv4 packet connection: %+v", err) @@ -99,13 +232,13 @@ func (s *Server) listenAndServe(wg *sync.WaitGroup) { copy(forwardData, buffer) wg.Add(1) - go s.forward(src.String(), cm.IfIndex, forwardData, wg) + go s.forwardUL(src.String(), cm.IfIndex, forwardData, wg) } } // forward forwards user plane packets from NWu to UPF // with GTP header encapsulated -func (s *Server) forward(ueInnerIP string, ifIndex int, rawData []byte, wg *sync.WaitGroup) { +func (s *Server) forwardUL(ueInnerIP string, ifIndex int, rawData []byte, wg *sync.WaitGroup) { nwuupLog := logger.NWuUPLog defer func() { if p := recover(); p != nil { @@ -147,8 +280,6 @@ func (s *Server) forward(ueInnerIP string, ifIndex int, rawData []byte, wg *sync gtpConnection := pduSession.GTPConnection - userPlaneConnection := gtpConnection.UserPlaneConnection - // Decapsulate GRE header and extract QoS Parameters if exist grePacket := gre.GREPacket{} if err := grePacket.Unmarshal(rawData); err != nil { @@ -172,10 +303,10 @@ func (s *Server) forward(ueInnerIP string, ifIndex int, rawData []byte, wg *sync return } - n, writeErr = userPlaneConnection.WriteTo(gtpPacket, gtpConnection.UPFUDPAddr) + n, writeErr = s.gtpuConn.WriteTo(gtpPacket, gtpConnection.UPFUDPAddr) } else { nwuupLog.Warnf("Receive GRE header without key field specifying QFI and RQI.") - n, writeErr = userPlaneConnection.WriteToGTP(gtpConnection.OutgoingTEID, payload, gtpConnection.UPFUDPAddr) + n, writeErr = s.gtpuConn.WriteToGTP(gtpConnection.OutgoingTEID, payload, gtpConnection.UPFUDPAddr) } if writeErr != nil { @@ -203,7 +334,7 @@ func buildQoSGTPPacket(teid uint32, qfi uint8, payload []byte) ([]byte, error) { b := make([]byte, header.MarshalLen()) if err := header.MarshalTo(b); err != nil { - nwuupLog.Errorf("go-gtp MarshalTo err: %+v", err) + nwuupLog.Errorf("go-gtp MarshalTo err: %v", err) return nil, err } @@ -214,7 +345,10 @@ func (s *Server) Stop() { nwuupLog := logger.NWuUPLog nwuupLog.Infof("Close Nwuup server...") - if err := s.IPv4PacketConn.Close(); err != nil { - nwuupLog.Errorf("Stop nwuup server error : %+v", err) + if err := s.greConn.Close(); err != nil { + nwuupLog.Errorf("Stop nwuup greConn error : %v", err) + } + if err := s.gtpuConn.Close(); err != nil { + nwuupLog.Errorf("Stop nwuup gtpuConn error : %v", err) } } diff --git a/pkg/context/ranue.go b/pkg/context/ranue.go index 99ea79c..90d31d5 100644 --- a/pkg/context/ranue.go +++ b/pkg/context/ranue.go @@ -4,8 +4,6 @@ import ( "fmt" "net" - gtpv1 "github.com/wmnsk/go-gtp/gtpv1" - "github.com/free5gc/ngap/ngapType" ) @@ -79,11 +77,10 @@ type QosFlow struct { } type GTPConnectionInfo struct { - UPFIPAddr string - UPFUDPAddr net.Addr - IncomingTEID uint32 - OutgoingTEID uint32 - UserPlaneConnection *gtpv1.UPlaneConn + UPFIPAddr string + UPFUDPAddr net.Addr + IncomingTEID uint32 + OutgoingTEID uint32 } type PDUSessionSetupTemporaryData struct { diff --git a/pkg/service/init.go b/pkg/service/init.go index 5325acc..5d16f87 100644 --- a/pkg/service/init.go +++ b/pkg/service/init.go @@ -12,7 +12,6 @@ import ( "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/vishvananda/netlink" - "golang.org/x/net/ipv4" "github.com/free5gc/n3iwf/internal/logger" "github.com/free5gc/n3iwf/internal/ngap" @@ -265,7 +264,3 @@ func (a *N3iwfApp) NgapEvtCh() chan n3iwf_context.NgapEvt { func (a *N3iwfApp) IkeEvtCh() chan n3iwf_context.IkeEvt { return a.ikeServer.RcvEventCh } - -func (a *N3iwfApp) NwuupIPv4PktConn() *ipv4.PacketConn { - return a.nwuupServer.IPv4PacketConn -}