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fix(examples): call Swarm::add_external_address in dcutr and relay

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> Observed addresses (aka. external address candidates) of the local node, reported by a remote node
> via `libp2p-identify`, are no longer automatically considered confirmed external addresses, in
> other words they are no longer trusted by default. Instead users need to confirm the reported
> observed address either manually, or by using `libp2p-autonat`. In trusted environments users can
> simply extract observed addresses from a `libp2p-identify::Event::Received { info:
> libp2p_identify::Info { observed_addr }}` and confirm them via `Swarm::add_external_address`.

Follow-up to https://github.com/libp2p/rust-libp2p/pull/3954.

Pull-Request: #4052.
This commit is contained in:
Max Inden 2023-06-09 05:26:24 +02:00 committed by GitHub
parent c2230f9948
commit 2910c985e8
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3 changed files with 16 additions and 0 deletions
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1
examples/dcutr/src/main.rs
View File

@ -214,6 +214,7 @@ fn main() -> Result<(), Box<dyn Error>> {
..
})) => {
info!("Relay told us our public address: {:?}", observed_addr);
swarm.add_external_address(observed_addr);
learned_observed_addr = true;
}
event => panic!("{event:?}"),

8
examples/relay-server/src/main.rs
View File

@ -82,6 +82,14 @@ fn main() -> Result<(), Box<dyn Error>> {
loop {
match swarm.next().await.expect("Infinite Stream.") {
SwarmEvent::Behaviour(event) => {
if let BehaviourEvent::Identify(identify::Event::Received {
info: identify::Info { observed_addr, .. },
..
}) = &event
{
swarm.add_external_address(observed_addr.clone());
}
println!("{event:?}")
}
SwarmEvent::NewListenAddr { address, .. } => {

7
protocols/identify/CHANGELOG.md
View File

@ -1,5 +1,10 @@
## 0.43.0 - unreleased
- Observed addresses (aka. external address candidates) of the local node, reported by a remote node via `libp2p-identify`, are no longer automatically considered confirmed external addresses, in other words they are no longer trusted by default.
Instead users need to confirm the reported observed address either manually, or by using `libp2p-autonat`.
In trusted environments users can simply extract observed addresses from a `libp2p-identify::Event::Received { info: libp2p_identify::Info { observed_addr }}` and confirm them via `Swarm::add_external_address`.
See [PR 3954] and [PR 4052].
- Remove deprecated `Identify` prefixed symbols. See [PR 3698].
- Raise MSRV to 1.65.
See [PR 3715].
@ -17,7 +22,9 @@
[PR 3698]: https://github.com/libp2p/rust-libp2p/pull/3698
[PR 3715]: https://github.com/libp2p/rust-libp2p/pull/3715
[PR 3876]: https://github.com/libp2p/rust-libp2p/pull/3876
[PR 3954]: https://github.com/libp2p/rust-libp2p/pull/3954
[PR 3980]: https://github.com/libp2p/rust-libp2p/pull/3980
[PR 4052]: https://github.com/libp2p/rust-libp2p/pull/4052
## 0.42.2