bump sigs.k8s.io/apiserver-network-proxy/konnectivity-client@v0.0.30

Signed-off-by: Andrew Sy Kim <andrewsy@google.com>
This commit is contained in:
Andrew Sy Kim 2022-03-02 01:30:08 +00:00
parent ebe0af3529
commit 00e222579c
14 changed files with 53 additions and 31 deletions

2
go.mod
View File

@ -525,7 +525,7 @@ replace (
modernc.org/strutil => modernc.org/strutil v1.0.0
modernc.org/xc => modernc.org/xc v1.0.0
rsc.io/pdf => rsc.io/pdf v0.1.1
sigs.k8s.io/apiserver-network-proxy/konnectivity-client => sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28
sigs.k8s.io/apiserver-network-proxy/konnectivity-client => sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30
sigs.k8s.io/json => sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2
sigs.k8s.io/kustomize/api => sigs.k8s.io/kustomize/api v0.10.1
sigs.k8s.io/kustomize/cmd/config => sigs.k8s.io/kustomize/cmd/config v0.10.2

4
go.sum
View File

@ -602,8 +602,8 @@ modernc.org/mathutil v1.0.0/go.mod h1:wU0vUrJsVWBZ4P6e7xtFJEhFSNsfRLJ8H458uRjg03
modernc.org/strutil v1.0.0/go.mod h1:lstksw84oURvj9y3tn8lGvRxyRC1S2+g5uuIzNfIOBs=
modernc.org/xc v1.0.0/go.mod h1:mRNCo0bvLjGhHO9WsyuKVU4q0ceiDDDoEeWDJHrNx8I=
rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 h1:W77Zf0W3/x9IuyysjbDMV9wJKH/ksG6eviSzyd4jFTc=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 h1:dUk62HQ3ZFhD48Qr8MIXCiKA8wInBQCtuE4QGfFW7yA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/kustomize/api v0.10.1 h1:KgU7hfYoscuqag84kxtzKdEC3mKMb99DPI3a0eaV1d0=

View File

@ -994,8 +994,8 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 h1:W77Zf0W3/x9IuyysjbDMV9wJKH/ksG6eviSzyd4jFTc=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 h1:dUk62HQ3ZFhD48Qr8MIXCiKA8wInBQCtuE4QGfFW7yA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

View File

@ -50,7 +50,7 @@ require (
k8s.io/klog/v2 v2.40.1
k8s.io/kube-openapi v0.0.0-20211115234752-e816edb12b65
k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2
sigs.k8s.io/structured-merge-diff/v4 v4.2.1
sigs.k8s.io/yaml v1.2.0

View File

@ -975,8 +975,8 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 h1:W77Zf0W3/x9IuyysjbDMV9wJKH/ksG6eviSzyd4jFTc=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 h1:dUk62HQ3ZFhD48Qr8MIXCiKA8wInBQCtuE4QGfFW7yA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

View File

@ -970,8 +970,8 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 h1:W77Zf0W3/x9IuyysjbDMV9wJKH/ksG6eviSzyd4jFTc=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 h1:dUk62HQ3ZFhD48Qr8MIXCiKA8wInBQCtuE4QGfFW7yA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

View File

@ -1077,8 +1077,8 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 h1:W77Zf0W3/x9IuyysjbDMV9wJKH/ksG6eviSzyd4jFTc=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 h1:dUk62HQ3ZFhD48Qr8MIXCiKA8wInBQCtuE4QGfFW7yA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

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@ -970,8 +970,8 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 h1:W77Zf0W3/x9IuyysjbDMV9wJKH/ksG6eviSzyd4jFTc=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 h1:dUk62HQ3ZFhD48Qr8MIXCiKA8wInBQCtuE4QGfFW7yA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

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@ -875,7 +875,7 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

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@ -956,7 +956,7 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

View File

@ -966,8 +966,8 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 h1:W77Zf0W3/x9IuyysjbDMV9wJKH/ksG6eviSzyd4jFTc=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 h1:dUk62HQ3ZFhD48Qr8MIXCiKA8wInBQCtuE4QGfFW7yA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

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@ -969,8 +969,8 @@ k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 h1:W77Zf0W3/x9IuyysjbDMV9wJKH/ksG6eviSzyd4jFTc=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28/go.mod h1:tq2nT0Kx7W+/f2JVE+zxYtUhdjuELJkVpNz+x/QN5R4=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 h1:dUk62HQ3ZFhD48Qr8MIXCiKA8wInBQCtuE4QGfFW7yA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30/go.mod h1:fEO7lRTdivWO2qYVCVG7dEADOMo/MLDCVr8So2g88Uw=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

4
vendor/modules.txt vendored
View File

@ -2316,7 +2316,7 @@ k8s.io/utils/pointer
k8s.io/utils/strings
k8s.io/utils/strings/slices
k8s.io/utils/trace
# sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28 => sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28
# sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30 => sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30
sigs.k8s.io/apiserver-network-proxy/konnectivity-client/pkg/client
sigs.k8s.io/apiserver-network-proxy/konnectivity-client/proto/client
# sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 => sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2
@ -2799,7 +2799,7 @@ sigs.k8s.io/yaml
# modernc.org/strutil => modernc.org/strutil v1.0.0
# modernc.org/xc => modernc.org/xc v1.0.0
# rsc.io/pdf => rsc.io/pdf v0.1.1
# sigs.k8s.io/apiserver-network-proxy/konnectivity-client => sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.28
# sigs.k8s.io/apiserver-network-proxy/konnectivity-client => sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.30
# sigs.k8s.io/json => sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2
# sigs.k8s.io/kustomize/api => sigs.k8s.io/kustomize/api v0.10.1
# sigs.k8s.io/kustomize/cmd/config => sigs.k8s.io/kustomize/cmd/config v0.10.2

View File

@ -43,10 +43,17 @@ type dialResult struct {
connid int64
}
type pendingDial struct {
// resultCh is the channel to send the dial result to
resultCh chan<- dialResult
// cancelCh is the channel closed when resultCh no longer has a receiver
cancelCh <-chan struct{}
}
// grpcTunnel implements Tunnel
type grpcTunnel struct {
stream client.ProxyService_ProxyClient
pendingDial map[int64]chan<- dialResult
pendingDial map[int64]pendingDial
conns map[int64]*conn
pendingDialLock sync.RWMutex
connsLock sync.RWMutex
@ -82,7 +89,7 @@ func CreateSingleUseGrpcTunnel(ctx context.Context, address string, opts ...grpc
tunnel := &grpcTunnel{
stream: stream,
pendingDial: make(map[int64]chan<- dialResult),
pendingDial: make(map[int64]pendingDial),
conns: make(map[int64]*conn),
readTimeoutSeconds: 10,
}
@ -111,7 +118,7 @@ func (t *grpcTunnel) serve(c clientConn) {
case client.PacketType_DIAL_RSP:
resp := pkt.GetDialResponse()
t.pendingDialLock.RLock()
ch, ok := t.pendingDial[resp.Random]
pendingDial, ok := t.pendingDial[resp.Random]
t.pendingDialLock.RUnlock()
if !ok {
@ -123,10 +130,16 @@ func (t *grpcTunnel) serve(c clientConn) {
connid: resp.ConnectID,
}
select {
case ch <- result:
default:
klog.ErrorS(fmt.Errorf("blocked pending channel"), "Received second dial response for connection request", "connectionID", resp.ConnectID, "dialID", resp.Random)
// On multiple dial responses, avoid leaking serve goroutine.
// try to send to the result channel
case pendingDial.resultCh <- result:
// unblock if the cancel channel is closed
case <-pendingDial.cancelCh:
// If there are no readers of the pending dial channel above, it means one of two things:
// 1. There was a second DIAL_RSP for the connection request (this is very unlikely but possible)
// 2. grpcTunnel.DialContext() returned early due to a dial timeout or the client canceling the context
//
// In either scenario, we should return here as this tunnel is no longer needed.
klog.V(1).InfoS("Pending dial has been cancelled; dropped", "connectionID", resp.ConnectID, "dialID", resp.Random)
return
}
}
@ -183,9 +196,16 @@ func (t *grpcTunnel) DialContext(ctx context.Context, protocol, address string)
}
random := rand.Int63() /* #nosec G404 */
resCh := make(chan dialResult, 1)
// This channel is closed once we're returning and no longer waiting on resultCh
cancelCh := make(chan struct{})
defer close(cancelCh)
// This channel MUST NOT be buffered. The sender needs to know when we are not receiving things, so they can abort.
resCh := make(chan dialResult)
t.pendingDialLock.Lock()
t.pendingDial[random] = resCh
t.pendingDial[random] = pendingDial{resultCh: resCh, cancelCh: cancelCh}
t.pendingDialLock.Unlock()
defer func() {
t.pendingDialLock.Lock()
@ -226,8 +246,10 @@ func (t *grpcTunnel) DialContext(ctx context.Context, protocol, address string)
t.conns[res.connid] = c
t.connsLock.Unlock()
case <-time.After(30 * time.Second):
klog.V(5).InfoS("Timed out waiting for DialResp", "dialID", random)
return nil, errors.New("dial timeout, backstop")
case <-ctx.Done():
klog.V(5).InfoS("Context canceled waiting for DialResp", "ctxErr", ctx.Err(), "dialID", random)
return nil, errors.New("dial timeout, context")
}