[tor-commits] [torspec/master] Clarify part of proposal 325

[nickm at torproject.org]

commit 7424472d21725077f83aa9ff19e64ae530798d27
Author: Nick Mathewson <nickm at torproject.org>
Date:   Wed Apr 14 10:43:20 2021 -0400

    Clarify part of proposal 325
    
    We indicated that "0" meant "no more messages" but we didn't say
    what happened if there was no space to put such a 0.
---
 proposals/325-packed-relay-cells.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/proposals/325-packed-relay-cells.md b/proposals/325-packed-relay-cells.md
index fb962dd..6498d4c 100644
--- a/proposals/325-packed-relay-cells.md
+++ b/proposals/325-packed-relay-cells.md
@@ -79,8 +79,9 @@ encrypt/decrypt and recognize a cell is not changed, only the payload changes
 to contain multiple messages.
 
 The "Relay Command" byte "0" is now used to explicitly indicate "end of
-commands". If the byte "0" appears after a `RELAY_MESSAGE`, the rest of the
-cell MUST be ignored.
+commands".  If the byte "0" appears after a `RELAY_MESSAGE`, the rest of the
+cell MUST be ignored.  (Note that this "end of commands" indicator may be
+absent if there are no bytes remaining after the last message in the cell.)
 
 Only some "Relay Command" are supported for relay cell packing:
   - `BEGIN_DIR`