Add `pa.validIP` to test IP address validity & absence from IANA
reservations.
Modify `pa.WillingToIssue` and `pa.WellFormedIdentifiers` to support IP
address identifiers.
Add a map of allowed identifier types to the `pa` config.
Part of #8137
Refactor `ca.issuePrecertificateInner` away from the old `NamesFromCSR`
logic, and to our `identifier` functions.
Add `identifier.ToValues` to provide slices of identifier values, split
up by type.
Fixes#8135
Part of #7311
Add `identifier` fields, which will soon replace the `dnsName` fields,
to:
- `corepb.Authorization`
- `corepb.Order`
- `rapb.NewOrderRequest`
- `sapb.CountFQDNSetsRequest`
- `sapb.CountInvalidAuthorizationsRequest`
- `sapb.FQDNSetExistsRequest`
- `sapb.GetAuthorizationsRequest`
- `sapb.GetOrderForNamesRequest`
- `sapb.GetValidAuthorizationsRequest`
- `sapb.NewOrderRequest`
Populate these `identifier` fields in every function that creates
instances of these structs.
Use these `identifier` fields instead of `dnsName` fields (at least
preferentially) in every function that uses these structs. When crossing
component boundaries, don't assume they'll be present, for
deployability's sake.
Deployability note: Mismatched `cert-checker` and `sa` versions will be
incompatible because of a type change in the arguments to
`sa.SelectAuthzsMatchingIssuance`.
Part of #7311
Rename `FromDNSNames` to `NewDNSSlice`, since it's exactly `NewDNS`
except for slices.
Rename `AsProto` to use the "To" prefix, since it's the opposite of
"From".
Add a named type `ACMEIdentifiers` so that we can add methods to slices.
We will have a lot of slice handling code coming up, which this will
make more elegant and readable.
Add a comment to explain naming conventions in the `identifier` package.
Part of #7311
Alternative to #8068
Add an `identifier` field to the `va.PerformValidationRequest` proto, which will soon replace its `dnsName` field.
Accept and prefer the `identifier` field in every VA function that uses this struct. Don't (yet) assume it will be present.
Throughout the VA, accept and handle the IP address identifier type. Handling is similar to DNS names, except that `getAddrs` is not called, and consider that:
- IPs are represented in a different field in the `x509.Certificate` struct.
- IPs must be presented as reverse DNS (`.arpa`) names in SNI for [TLS-ALPN-01 challenge requests](https://datatracker.ietf.org/doc/html/rfc8738#name-tls-with-application-layer-).
- IPv6 addresses are enclosed in square brackets when composing or parsing URLs.
For HTTP-01 challenges, accept redirects to bare IP addresses, which were previously rejected.
Fixes#2706
Part of #7311
Clean up how we handle identifiers throughout the Boulder codebase by
- moving the Identifier protobuf message definition from sa.proto to
core.proto;
- adding support for IP identifier to the "identifier" package;
- renaming the "identifier" package's exported names to be clearer; and
- ensuring we use the identifier package's helper functions everywhere
we can.
This will make future work to actually respect identifier types (such as
in Authorization and Order protobuf messages) simpler and easier to
review.
Part of https://github.com/letsencrypt/boulder/issues/7311
This will allow implementing sub-problems without creating a cyclic
dependency between `core` and `problems`.
The `identifier` package is somewhat small/single-purpose and in the
future we may want to move more "ACME" bits beyond the `identifier`
types into a dedicated package outside of `core`.
James Renken
Aaron Gable
Daniel McCarney