How can I determine whether the relay connection is successful?

[ISensuiI]

How can I determine whether the connection to the relay is successful?

I understand that after bind, the program will do many things asynchronously, including connecting to the relay, selecting the relay, etc. But I want to know whether it has successfully connected to the relay. I have tried home_relay and other related endpoint methods in the manual, but they can't tell me whether the relay has been successfully connected. I can tell from the log that it has timed out and is constantly retrying. But I don't have any relevant method to get this status. I used the iroh dns service and relay service I built myself.

I know that the iroh report module has a lot of net_report related tests inside it, but it still can't tell me whether my bind operation was successful

The following is a domain name I entered randomly. Although I saw an exception, the program will continue to execute and retry. How can I get a clear success or failure for the entire process. My steps are that client A has just started to bind and wait for B to connect, that is, there is only relay + client A. When client A starts, I can't get a clear relay connection success or failure

        let discovery_config = ConcurrentDiscovery::from_services(vec![
            Box::new(PkarrPublisher::new(local_secret_key.clone(),pkarr_url.clone())),
            Box::new(PkarrResolver::new(pkarr_url.clone())),
            Box::new(DnsDiscovery::new(GLOBAL_DNS_ORIGIN.parse()?)),
        ]);


        let endpoint = Endpoint::builder()

            .secret_key(local_secret_key)
        
            .alpns(vec![
                GLOBAL_STREAM_ALPN.to_vec(),
                GOSSIP_ALPN.to_vec(),
                BLOBS_ALPN.to_vec(),
                DOCS_ALPN.to_vec()
            ])
          
            .relay_mode(RelayMode::Custom(relay_map1))
            .discovery(Box::new(discovery_config))
            .bind()
            .await?;

2025-05-10T17:54:26.232962Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor: iroh_net_report::reportgen: Local interfaces if_state=1. {361610B1-71A2-11EF-97B9-806E6F6E6963} Loopback ipv4=[127.0.0.1/8] ipv6=[::
1/128]; 8. {673480FC-C563-4398-A957-AE7D03AE463E} Ethernet ipv4=[192.168.88.1/24] ipv6=[fe80::494a:44d5:392c:74eb/64]; 10. {8016B2C0-229D-453D-975B-4219D5822596} Ethernet ipv4=[192.168.3.1/24] ipv6=[fe80::4ee6:ef19:a115:522e/64]
; 19. {F319A5DE-702A-4AF1-A7A2-24BC99B6C8ED} Ethernet ipv4=[10.0.0.1/24, 169.254.78.154/16] ipv6=[fe80::9f31:c4ea:b9ce:b096/64]; 20. {F682C25F-55AD-4674-B33D-30F070C22313} Ethernet ipv4=[192.168.1.173/24] ipv6=[fe80::2ac0:97f7:2fd3:ccb5/64];
2025-05-10T17:54:26.234192Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: starting probe       
2025-05-10T17:54:26.234866Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: starting probe        
2025-05-10T17:54:26.234943Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: Performing DNS A lookup for relay addr hostname=relay-node21111.zzzzzzz.com.
2025-05-10T17:54:26.235495Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: Performing DNS A lookup for relay addr hostname=relay-node21111.zzzzzzz.com.
2025-05-10T17:54:26.237480Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::xfer::dns_handle: querying: relay-node21111.zzzzzzz.com. A
2025-05-10T17:54:26.237478Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::xfer::dns_handle: querying: relay-node21111.zzzzzzz.com. A
2025-05-10T17:54:26.238194Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_resolver::name_server::name_server_pool: sending request: [Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN }]
2025-05-10T17:54:26.238640Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_resolver::name_server::name_server_pool: sending request: [Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN }]
2025-05-10T17:54:26.238803Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_resolver::name_server::name_server: reconnecting: NameServerConfig { socket_addr: 192.168.1.1:53, protocol: Udp, tls_dns_name: None, http_endpoint: None, trust_negative_responses: false, bind_addr: None }
2025-05-10T17:54:26.239578Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::xfer: enqueueing message:QUERY:[Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN }]
2025-05-10T17:54:26.239573Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_resolver::name_server::name_server: reconnecting: NameServerConfig { socket_addr: 192.168.1.1:53, protocol: Udp, tls_dns_name: None, http_endpoint: None, trust_negative_responses: false, bind_addr: None }
2025-05-10T17:54:26.240120Z DEBUG hickory_proto::udp::udp_client_stream: final message: ; header 50379:QUERY:RD:NoError:QUERY:0/0/0
; query
;; relay-node21111.zzzzzzz.com. IN A

2025-05-10T17:54:26.240658Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::xfer: enqueueing message:QUERY:[Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN }]
2025-05-10T17:54:26.241345Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_resolver::name_server::name_server: existing connection: NameServerConfig { socket_addr: 192.168.1.1:53, protocol: Udp, tls_dns_name: None, http_endpoint: None, trust_negative_responses: false, bind_addr: None }
2025-05-10T17:54:26.241422Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_resolver::name_server::name_server: existing connection: NameServerConfig { socket_addr: 192.168.1.1:53, protocol: Udp, tls_dns_name: None, http_endpoint: None, trust_negative_responses: false, bind_addr: None }
2025-05-10T17:54:26.241917Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::xfer: enqueueing message:QUERY:[Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN }]
2025-05-10T17:54:26.247741Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::xfer: enqueueing message:QUERY:[Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN }]
2025-05-10T17:54:26.248079Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::udp::udp_stream: created socket successfully
2025-05-10T17:54:26.248519Z DEBUG hickory_proto::udp::udp_client_stream: final message: ; header 44262:QUERY:RD:NoError:QUERY:0/0/0
; query
;; relay-node21111.zzzzzzz.com. IN A

2025-05-10T17:54:26.248716Z DEBUG hickory_proto::udp::udp_client_stream: final message: ; header 57133:QUERY:RD:NoError:QUERY:0/0/0
; query
;; relay-node21111.zzzzzzz.com. IN A

2025-05-10T17:54:26.249344Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::udp::udp_stream: created socket successfully
2025-05-10T17:54:26.249599Z DEBUG hickory_proto::udp::udp_client_stream: final message: ; header 42110:QUERY:RD:NoError:QUERY:0/0/0
; query
;; relay-node21111.zzzzzzz.com. IN A

2025-05-10T17:54:26.250059Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::udp::udp_stream: created socket successfully
2025-05-10T17:54:26.250823Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::udp::udp_stream: created socket successfully
2025-05-10T17:54:26.265004Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::udp::udp_client_stream: received message id: 50379
2025-05-10T17:54:26.265776Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::error: response: ; header 50379:RESPONSE:RD,RA:NXDomain:QUERY:0/1/0
; query
;; relay-node21111.zzzzzzz.com. IN A
; answers 0
; nameservers 1
zzzzzzz.com. 414 IN SOA jacob.ns.cloudflare.com. dns.cloudflare.com. 2371662691 10000 2400 604800 1800
; additionals 0

2025-05-10T17:54:26.266947Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::udp::udp_client_stream: received message id: 44262
2025-05-10T17:54:26.267590Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 0ns to https://relay-node21111.zzzzzzz.com./}: hickory_proto::error: response: ; header 44262:RESPONSE:RD,RA:NXDomain:QUERY:0/1/0
; query
;; relay-node21111.zzzzzzz.com. IN A
; answers 0
; nameservers 1
zzzzzzz.com. 414 IN SOA jacob.ns.cloudflare.com. dns.cloudflare.com. 2371662691 10000 2400 604800 1800
; additionals 0

2025-05-10T17:54:26.268673Z DEBUG ep{me=d04ab23274}:magicsock:portmapper.service:portmapper.probe: igd_next::aio::tokio: sending broadcast request to: 239.255.255.250:1900 on interface: Ok(0.0.0.0:56671)
2025-05-10T17:54:26.344748Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 100ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: starting probe
2025-05-10T17:54:26.344798Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 100ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: starting probe      
2025-05-10T17:54:26.345875Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 100ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: Performing DNS A lookup for relay addr hostname=relay-node21111.zzzzzzz.com.
2025-05-10T17:54:26.346405Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 100ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: Performing DNS A lookup for relay addr hostname=relay-node21111.zzzzzzz.com.
2025-05-10T17:54:26.436208Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 200ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: starting probe
2025-05-10T17:54:26.436889Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 200ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: starting probe     
2025-05-10T17:54:26.437346Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=QAD Ipv4 after 200ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: Performing DNS A lookup for relay addr hostname=relay-node21111.zzzzzzz.com.
2025-05-10T17:54:26.437646Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=STUN Ipv4 after 200ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: Performing DNS A lookup for relay addr hostname=relay-node21111.zzzzzzz.com.
2025-05-10T17:54:26.544126Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=ICMPv4 after 300ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: starting probe
2025-05-10T17:54:26.544275Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:run_probe{probe=HTTPS after 300ms to https://relay-node21111.zzzzzzz.com./}: iroh_net_report::reportgen: starting probe
2025-05-10T17:54:26.544915Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:probe: iroh_net_report::reportgen: probe set aborted: no relay node addr: No suitable relay addr found: no calls succeed: [ proto err
or: no records found for Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN } proto error: no records found for Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_c
lass: IN } proto error: no records found for Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN } ] probe=QuicIpv4 { delay: 0ns, node: RelayNode { url: RelayUrl("https://relay-node21111.zzzzzzz.com./"), stun_only: false, stun_port: 3478, quic: Some(RelayQuicConfig { port: 7842 }) } }
2025-05-10T17:54:26.544949Z DEBUG ep{me=d04ab23274}:magicsock:net_report.actor:reportgen.actor:probe: iroh_net_report::reportgen: probe set aborted: no relay node addr: No suitable relay addr found: no calls succeed: [ proto err
or: no records found for Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN } proto error: no records found for Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_c
lass: IN } proto error: no records found for Query { name: Name("relay-node21111.zzzzzzz.com."), query_type: A, query_class: IN } ] probe=StunIpv4 { delay: 0ns, node: RelayNode { url: RelayUrl("https://relay-node21111.zzzzzzz.com./"), stun_only: false, stun_port: 3478, quic: Some(RelayQuicConfig { port: 7842 }) } }

[flub]

While I try to understand your requirements, would you mind telling me why you want to know about this connection? What will your application do with this information? I'm asking because I suspect you're trying to work around some behaviour from iroh, and I'd like to understand what it is that it does wrong.

[ISensuiI]

OK, I just started learning iroh and rust. I submit an issue and organize the problem. I'm sorry that I can only raise questions, but I can't modify or help fix them myself. I'm very sorry. I submit issues and quote this address? Or should I reorganize the content and submit it to issues?

[flub]

That's fine, I don't expect users to understand the insides of iroh. Your patient explaining of what you were struggling with led me to find the cause of your problems.

I'd probably write this up as an issue like so:

iroh uses invalid relay server as home relay

When configuring iroh to use a `RelayMap` with only invalid `RelayUrl`s iroh will
select an invalid relay server and advertise it as the home relay at
`Endpoint::home_relay`.

This is caused by https://github.com/n0-computer/iroh/blob/31895bf09ee58c2d7ae38d7f65698f3f983c12e9/iroh/src/magicsock.rs#L2968-L2971
which sets a home relay regardless of the netcheck report.

The home relay should probably only be set once a connection to the home relay is established.

See https://github.com/n0-computer/iroh/discussions/3298#discussioncomment-13131754 for more background.

[ISensuiI]

OK, do I need to organize the above content and file it in issues? If you need me to reorganize the above content and file it in issues, I can help.

[flub]

I created #3308 for you, hope you don't mind. But yes, you could have created this yourself if you wanted. Anyway, you can still subscribe to it.

[ISensuiI]

Thank you so much