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| author | teor <teor2345@gmail.com> | 2017-09-20 09:28:41 +1000 |
|---|---|---|
| committer | teor <teor2345@gmail.com> | 2017-09-20 09:28:41 +1000 |
| commit | 33d819164cbdf349cfdbe0dda6f26a5af3e2f1f9 (patch) | |
| tree | 9398461bc9256e836132532da48e64f96e38058d /tor-spec.txt | |
| parent | 72993063dcda1f9bcbde59c399d42777ba0d0af1 (diff) | |
| download | torspec-33d819164cbdf349cfdbe0dda6f26a5af3e2f1f9.tar.gz torspec-33d819164cbdf349cfdbe0dda6f26a5af3e2f1f9.zip | |
When VPADDING cells are sent early, specify their CIRC_ID_LEN
Resolves 22929.
Diffstat (limited to 'tor-spec.txt')
| -rw-r--r-- | tor-spec.txt | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/tor-spec.txt b/tor-spec.txt index 3c8b6e9..aab417b 100644 --- a/tor-spec.txt +++ b/tor-spec.txt @@ -434,8 +434,9 @@ see tor-design.pdf. byte equal to 7 ("VERSIONS"), or greater than or equal to 128. CIRCID_LEN is 2 for link protocol versions 1, 2, and 3. CIRCID_LEN - is 4 for link protocol version 4 or higher. The VERSIONS cell itself - always has CIRCID_LEN == 2 for backward compatibility. + is 4 for link protocol version 4 or higher. The first VERSIONS cell, + and any cells sent before the first VERSIONS cell, always have + CIRCID_LEN == 2 for backward compatibility. The CircID field determines which circuit, if any, the cell is associated with. @@ -543,8 +544,9 @@ see tor-design.pdf. right after the renegotiation is finished, before any other cells are sent. In "in-protocol", the initiator sends a VERSIONS cell immediately after the initial TLS handshake, and the responder - replies immediately with a VERSIONS cell. Parties MUST NOT send any - other cells on a connection until they have received a VERSIONS cell. + replies immediately with a VERSIONS cell. (As an exception to this rule, + if both sides support the "in-protocol" handshake, either side may send + VPADDING cells at any time.) The payload in a VERSIONS cell is a series of big-endian two-byte integers. Both parties MUST select as the link protocol version the |