mirjak2 weeks ago
I think the client should only try to open a path if it had send CIDs for that path ID (and the reception has been ack'ed). Then if the server received a path challenges for a path ID it doesn't have a CID for, it should either be an error or it should send a path abandon on another path.
I think the client should only try to open a path if it had send CIDs for that path ID (and the reception has been ack'ed).
We could be in the situation where the server has sent MP_NEW_CONNECTION_ID frames to the client, and the client wants to open a new path by sending a PATH_CHALLENGE along with a MP_NEW_CONNECTION_ID frame with the associated Path ID.
@mirjak mirjak last week
Yes sending it in the same packet is fine as well because than it cannot be lost or reordered separately.
@mirjak mirjak yesterday
Actually this issue is not resolved because if you send it in the same packet, it's "just" a matter of processing it the right order. However, otherwise I don't think it's a good idea to save the path challenge for later because then you also have to specify how long to wait.
mirjak
commented
3 months ago
This is the discussion from PR #315:
mirjak 2 weeks ago I think the client should only try to open a path if it had send CIDs for that path ID (and the reception has been ack'ed). Then if the server received a path challenges for a path ID it doesn't have a CID for, it should either be an error or it should send a path abandon on another path.
@qdeconinck qdeconinck last week
We could be in the situation where the server has sent MP_NEW_CONNECTION_ID frames to the client, and the client wants to open a new path by sending a PATH_CHALLENGE along with a MP_NEW_CONNECTION_ID frame with the associated Path ID.
@mirjak mirjak last week Yes sending it in the same packet is fine as well because than it cannot be lost or reordered separately.
@mirjak mirjak yesterday Actually this issue is not resolved because if you send it in the same packet, it's "just" a matter of processing it the right order. However, otherwise I don't think it's a good idea to save the path challenge for later because then you also have to specify how long to wait.