envoyproxy/envoy

[xds] ADS reject duplicate resources in grpc_mux

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#14.847 aberto em 28 de jan. de 2021

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Description

Title: in grpc_mux_impl, let's reject a resonse when we see duplicate resources.

Description: see https://github.com/envoyproxy/envoy/blob/main/source/common/config/grpc_mux_impl.cc#L224 We want to not "dedup" but reject the response here when the emplace fails

new_grpc_mux_impl seems doesnt have same issue as it push dup resources to each xds impl, where the dup resources gets rejected.

Repro steps:

send a discoveryResponse with multiple resources with the same name. Envoy accepts it silently.

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