Unlike linkspec, this doesn't validate the actual contents of the
specifiers. We'll use this so we can handle the linkspec list for an
introduction point in an HsDesc, and just pass it on when
constructing our circuits.
I haven't added any accessor or constructor functions, because I
don't expect to need them.
Enums with variants conditional on cargo features must be
non-exhaustive, because cargo features are supposed to be additive,
meaning that enabling a feature (which might happen due to some random
distant thing) ought not to break things using that enum.
There were surprisingly few places to fix this.
And the error too.
We need this for the API for BridgeConfigBuilder, where the user can
specify any kind of target "address", even a hostname.
It's already non-conditional, it's just that the name is too limiting.
In this commit:
* Change in tor-linkspec
* Export transitional aliases
* Add TODOs to remove the transitional aliases
Now it contains either an `OwnedChanTarget` or an `OwnedCircTarget`,
which will let `GuardMgr` return bridges that can be used to make
circuits.
As part of this change, it was necessary to revise some
address-modification functions that applied to filters and
`OwnedChanTarget`. Now they do the smart thing, and remove only the
address that are in the `ChanMethod`. This means that the addresses
from HasAddrs are still accurate about which addresses the relay
"has".
HasAddr used to mean "Here are addresses that I have, at which I can
be contacted." But "Where (and how) can I be contacted?" is now a
question for HasChannelMethod to answer.
(We still need to have "HasAddr", though, so we can answer things
like "what country is this relay in" and "are these relays in the
same /8?")
So this commit introduces:
* A new trait for adding an implementation of HasChannelMethod in
terms of HasAddr.
* A requirement on ChanTarget that it needs to implement
HasChannelMethod.
There is some temporary breakage here, marked with "TODO pt-client",
that I'll fix later in this branch.
We want the set of identities supported by a relay to be extensible
in the future with minimal fuss; we'd also like to make working
with these ID sets more convenient. To handle that, this commit
adds a new trait for "Something that has the same IDs as a relay"
and a new object for "an owned representation of a relay's IDs."
This commit introduces a similar trait for "Something with a list of
SocketAddr, like a relay has." There's no owned equivelent for
that, since Vec<SocketAddr> is already a thing.
Closes#428.
Nick Mathewson
Ian Jackson