The tonic server process exit unexpected when the client get a wrong tls config

[zier-one]

Bug Report

Version

v0.12.2 and master branch

Platform

Darwin XXX 23.6.0 Darwin Kernel Version 23.6.0: Mon Jul 29 21:14:30 PDT 2024; root:xnu-10063.141.2~1/RELEASE_ARM64_T6000 arm64

Description

First, let's try to run the server.rs and client.rs in examples/src/tls.
The server says:

Got a request from Some([::1]:59511) with info TlsConnectInfo { inner: TcpConnectInfo { local_addr: Some([::1]:50051), remote_addr: Some([::1]:59511) }, certs: None }

And the client says:

RESPONSE=Response { metadata: MetadataMap { headers: {"content-type": "application/grpc", "date": "Wed, 28 Aug 2024 09:15:40 GMT", "grpc-status": "0"} }, message: EchoResponse { message: "hello" }, extensions: Extensions }

Everything is OK for now.

Then, let's change one line in client.rs:

tonic/examples/src/tls/client.rs

Lines 14 to 17 in 82a856f

	let tls = ClientTlsConfig::new()
	.ca_certificate(ca)
	.domain_name("example.com");

modify .domain_name("example.com"); to .domain_name("wrong.com"); in L16

And then, run the server.rs and client.rs again.

We can see the client says:

Error: tonic::transport::Error(Transport, ConnectError(Custom { kind: InvalidData, error: InvalidCertificate(NotValidForName) }))

It's OK, but the server process EXIT WITH NO ERROR. It confuses me.

[zier-one]

I've located the bug is caused by this pr c3be20c

[zier-one]

And I try to fix it in #1885 (comment)

[zier-one]

fixed in #1885