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srt: fix broken connections in case of high latency (#3756) (#5282)

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When listening and accepting an incoming connection request, the
response might be received by the peer with some delay due to latency.
This causes the peer to send a second connection request, that is not
detected as duplicate because the first connection request has already
been removed from the map that is used to check for duplicates
(connReqs), so it is treated as a brand new connection request,
breaking the first connection.

This patch fixes the issue by introducing another map (connByPeer) that
is used to check whether a connection request is associated to an
already-accepted connection.
This commit is contained in:
Alessandro Ros 2025-12-24 20:51:01 +01:00 • committed by GitHub
parent 1704fba5e9
commit cd2aed3fa3
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2 changed files with 4 additions and 2 deletions
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2
go.mod
View file

@ -101,3 +101,5 @@ require (
gopkg.in/warnings.v0 v0.1.2 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)
replace github.com/datarhei/gosrt => github.com/aler9/gosrt v0.9.1-0.20251222193740-d7fe54d226e5

4
go.sum
View file

@ -23,6 +23,8 @@ github.com/alecthomas/kong v1.13.0 h1:5e/7XC3ugvhP1DQBmTS+WuHtCbcv44hsohMgcvVxSr
github.com/alecthomas/kong v1.13.0/go.mod h1:wrlbXem1CWqUV5Vbmss5ISYhsVPkBb1Yo7YKJghju2I=
github.com/alecthomas/repr v0.5.2 h1:SU73FTI9D1P5UNtvseffFSGmdNci/O6RsqzeXJtP0Qs=
github.com/alecthomas/repr v0.5.2/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
github.com/aler9/gosrt v0.9.1-0.20251222193740-d7fe54d226e5 h1:RJzCu1Srlz876mijSN8gqvVISh7vVpplje/zAT8o6Pk=
github.com/aler9/gosrt v0.9.1-0.20251222193740-d7fe54d226e5/go.mod h1:SuUdLtWsdOAdcDMMmhT20i5XJ5ErwmX1hDeLCIb+xBk=
github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8=
github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
@ -52,8 +54,6 @@ github.com/cloudwego/base64x v0.1.6/go.mod h1:OFcloc187FXDaYHvrNIjxSe8ncn0OOM8gE
github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
github.com/cyphar/filepath-securejoin v0.4.1 h1:JyxxyPEaktOD+GAnqIqTf9A8tHyAG22rowi7HkoSU1s=
github.com/cyphar/filepath-securejoin v0.4.1/go.mod h1:Sdj7gXlvMcPZsbhwhQ33GguGLDGQL7h7bg04C/+u9jI=
github.com/datarhei/gosrt v0.9.0 h1:FW8A+F8tBiv7eIa57EBHjtTJKFX+OjvLogF/tFXoOiA=
github.com/datarhei/gosrt v0.9.0/go.mod h1:rqTRK8sDZdN2YBgp1EEICSV4297mQk0oglwvpXhaWdk=
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=