mirrors/arti.git/crates/tor-proto/src/channel/msg.rs, branch arti-v1.7.0

proto: Allow padding in all channel message sets

2025-08-21T15:07:32Z

First of all, VPADDING has been added in link protocol version 3 so it was missing from v4. Second, after closely looking at C-tor and the spec, it appears that we allow VPADDING at any point on a channel which should simply be silently dropped. Any number in any order. Third, couple sets were missing the PADDING cell which is only allowed on an open channel. Signed-off-by: David Goulet

tor-proto: simplify some match statements

2025-08-20T19:34:41Z

proto: Change (crate) to (super) for all objects in msg.rs

2025-08-20T17:22:16Z

Signed-off-by: David Goulet

proto: Cleanup allow(unused)

2025-08-20T17:22:16Z

Signed-off-by: David Goulet

proto: Add message filtering to restricted message sets

2025-08-20T16:41:03Z

This adds the code in msg.rs to be able to filter an inbound or outbound message on a channel. Each link protocol version implement a "is_allowed()" which is quite verbose and tests each possibilities for human readability. Then, we have several small struct/enum that are used to describe how a message is filtered. It is still unused at this commit. Part of #1597 Signed-off-by: David Goulet

proto: Add restricted channel message sets

2025-08-20T16:41:03Z

Add the msg.rs file containing all the allowed message sets based on the channel type and direction. They are also namespaced by link protocol version. Unused at this commit. They will be used by the channel reactor along the channel type and link protocol version in order to know if the message is allowed or not. See is_allowed() helper function in this commit. Part of #1597 Signed-off-by: David Goulet