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Change some nat_traversals to consider a prefix. (#550)

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Change some `nat_traversal`s to consider a prefix.

Transports should consider only the relevant address prefix.
This commit is contained in:
Toralf Wittner
2018-10-15 16:29:32 +02:00
committed by GitHub
parent e179951c74
commit 2c98d06942
5 changed files with 49 additions and 87 deletions
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8
core/src/transport/mod.rs
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@ -116,8 +116,12 @@ pub trait Transport {
/// a remote node observes for one of our dialers.
///
/// For example, if `server` is `/ip4/0.0.0.0/tcp/3000` and `observed` is
/// `/ip4/80.81.82.83/tcp/29601`, then we should return `/ip4/80.81.82.83/tcp/3000`. Each
/// implementation of `Transport` is only responsible for handling the protocols it supports.
/// `/ip4/80.81.82.83/tcp/29601`, then we should return `/ip4/80.81.82.83/tcp/3000`.
///
/// Each implementation of `Transport` is only responsible for handling the protocols it
/// supports and should only consider the prefix of `observed` necessary to perform the
/// address translation (e.g. `/ip4/80.81.82.83`) but should otherwise preserve `server`
/// as is.
///
/// Returns `None` if nothing can be determined. This happens if this trait implementation
/// doesn't recognize the protocols, or if `server` and `observed` are related.