* Notify replay of pruned duplicate confirmed slots
* Ingest replay signal and run ancestor hashes for pruned
* Forward PDC to ancestor hashes and ingest pruned dumps from ancestor hashes service
* Add local-cluster test
Working towards LegacyContactInfo => ContactInfo migration, the commit
hides some implementation details of LegacyContactInfo and expands API
parity with the new ContactInfo.
https://github.com/solana-labs/solana/pull/27193
added hash domain to ping-pong protocol.
For backward compatibility responses both with and without domain were
generated and accepted.
Now that all clusters are upgraded, this commit enforces the hash domain
by removing the response without the domain.
Tenets:
1. Limit thread names to 15 characters
2. Prefix all Solana-controlled threads with "sol"
3. Use Camel case. It's more character dense than Snake or Kebab case
In order to maintain backward compatibility, for now the responding node
will hash the token both with and without domain so that the other node
will accept the response regardless of its upgrade status.
Once the cluster has upgraded to the new code, we will remove the legacy
domain = false case.
Packets are at the boundary of the system where, vast majority of the
time, they are received from an untrusted source. Raw indexing into the
data buffer can open attack vectors if the offsets are invalid.
Validating offsets beforehand is verbose and error prone.
The commit updates Packet::data() api to take a SliceIndex and always to
return an Option. The call-sites are so forced to explicitly handle the
case where the offsets are invalid.
Bytes past Packet.meta.size are not valid to read from.
The commit makes the buffer field private and instead provides two
methods:
* Packet::data() which returns an immutable reference to the underlying
buffer up to Packet.meta.size. The rest of the buffer is not valid to
read from.
* Packet::buffer_mut() which returns a mutable reference to the entirety
of the underlying buffer to write into. The caller is responsible to
update Packet.meta.size after writing to the buffer.