server: Reject outbound conns to non-full nodes. #1251
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This adds a test to ensure duplicate version messages are rejected. Backported from Decred.
This modifies the negotiation logic to ensure the callback has the opportunity to see the message before the peer is disconnected and improves the error handling when reading the remote version message. It also has the side effect of ensuring the protocol version is negotiated before sending reject messages with the exception of the first message not being a version message since negotiation is not possible in that case. This is being changed because it is useful for the server to see the message regardless in order to have the opportunity to things such as update the address manager and reject peers that don't have desired services. Backported from Decred.
This modifies the OnVersion callback to allow a reject message to be returned in which case the message will be sent to the peer and the peer will be disconnected. Backported from Decred.
This modifies the server connection code to reject outbound peers that do not offer full node services.
davecgh
force-pushed
the
server_reject_outbound_peers_without_desired_services
branch
from
b03c7f0
to
9151ebc
Compare
|
Rebased. |
davecgh
deleted the
server_reject_outbound_peers_without_desired_services
branch
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This requires PR #1250.
Backported from decred/dcrd#1252.
This modifies the server connection code to reject outbound peers that do not offer full node services.