rust: allow TLS configuration with client cert

[nbuffon]

What's new

• rust : allow to configure TLS using client certificate

How to test

1. Update the example configuration (examples/config.ini) to point to a broker requiring client certificate
2. Run the json_counter example

   cargo run --example json_counter
   

   => You must see logs about message received

   Received 10 messages including 7 as JSON
   Received 20 messages including 17 as JSON
   Received 30 messages including 27 as JSON

[tigroo]

code ok. Test ko: no logs receive, no error trace:

/home/kvmk8371/.cargo/bin/cargo run --color=always --package libits-client --example json_counter --profile dev -- --config examples/htw-config.ini
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
     Running `target/debug/examples/json_counter --config examples/htw-config.ini`
INFO [libits::client::logger] Logger ready on stdout
INFO [libits::transport::mqtt] Configuring TLS with client certificate (MQTTS)
INFO [libits::transport::mqtt::mqtt_router] Registered route for topic: #
DEBUG [libits::transport::mqtt::mqtt_client] Sent subscriptions
DEBUG [rustls::webpki::anchors] add_parsable_certificates processed 1 valid and 0 invalid certs
DEBUG [rustls::client::hs] No cached session for DnsName("fgvt-fw1.htwsaar.de")
DEBUG [rustls::client::hs] Not resuming any session
DEBUG [rustls::client::hs] Using ciphersuite TLS13_AES_256_GCM_SHA384
DEBUG [rustls::client::tls13] Not resuming
DEBUG [rustls::client::tls13] TLS1.3 encrypted extensions: []
DEBUG [rustls::client::hs] ALPN protocol is None
DEBUG [rustls::client::tls13] Got CertificateRequest CertificateRequestPayloadTls13 { context: , extensions: [SignatureAlgorithms([ECDSA_NISTP256_SHA256, ECDSA_NISTP384_SHA384, ECDSA_NISTP521_SHA512, ED25519, ED448, Unknown(2057), Unknown(2058), Unknown(2059), RSA_PSS_SHA256, RSA_PSS_SHA384, RSA_PSS_SHA512, RSA_PKCS1_SHA256, RSA_PKCS1_SHA384, RSA_PKCS1_SHA512, Unknown(771), Unknown(769)]), AuthorityNames([DistinguishedName(308187310b30090603550406130244453111300f06035504080c08536161726c616e643110300e060355040a0c0768747773616172310d300b060355040b0c04464756543117301506035504030c0e4647565420446576696365204341312b302906092a864886f70d010901161c6d617474686961732e7363686f6c74657340687477736161722e6465), DistinguishedName(30819c310b30090603550406130244453111300f06035504080c08536161726c616e643115301306035504070c0c5361617262727565636b656e3110300e060355040a0c0768747773616172310d300b060355040b0c04464756543115301306035504030c0c4647565420526f6f74204341312b302906092a864886f70d010901161c6d617474686961732e7363686f6c74657340687477736161722e6465)])] }
DEBUG [rustls::client::common] Attempting client auth
DEBUG [rumqttc::v5::state] Subscribe. Topics = [Filter { path: "#", qos: AtMostOnce, nolocal: false, preserve_retain: false, retain_forward_rule: OnEverySubscribe }], Pkid = 1
DEBUG [rumqttc::v5::state] SubAck Pkid = 1, QoS = AtMostOnce
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 12.178578ms, last outgoing request before 60.000804783s

[tigroo]

In fact, waiting 1000 messages instead of 10....it arrives!

Received 1000 messages including 989 as JSON
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 184.496016ms, last outgoing request before 60.001049475s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 38.19714ms, last outgoing request before 60.000738554s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 625.203963ms, last outgoing request before 60.000866031s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 643.885008ms, last outgoing request before 60.001562233s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 159.382277ms, last outgoing request before 60.001933928s
Received 2000 messages including 1979 as JSON
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 559.930673ms, last outgoing request before 60.001894081s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 163.309095ms, last outgoing request before 60.002105408s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 95.429916ms, last outgoing request before 60.001487659s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 652.051911ms, last outgoing request before 60.000979966s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 612.221475ms, last outgoing request before 60.001446875s
DEBUG [rumqttc::v5::state] Pingreq, last incoming packet before 198.559726ms, last outgoing request before 60.001919131s
Received 3000 messages including 2967 as JSON