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I2NP: Note SSU2 uses 9-byte header

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zzz
2022-12-31 15:41:02 -05:00
parent 47c0876ab3
commit d3635464fa
1 changed files with 11 additions and 6 deletions
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i2p2www/spec/i2np.rst
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@ -3,8 +3,8 @@ I2NP Specification
==================
.. meta::
:category: Protocols
:lastupdated: 2022-06
:accuratefor: 0.9.54
:lastupdated: 2022-12
:accuratefor: 0.9.57
.. contents::
@ -45,6 +45,8 @@ below.
============== ================================================================
API Version Required I2NP Features
============== ================================================================
0.9.55 SSU2 transport support (if published in router info)
0.9.51 Short tunnel build messages for ECIES-X25519 routers
0.9.49 Garlic messages to ECIES-X25519 routers
@ -67,7 +69,7 @@ below.
0.9.38 DSM type bits 3-0 now contain the type;
LeaseSet2 may be sent in a DSM
0.9.36 NTCP2 transport support (if advertised in router address)
0.9.36 NTCP2 transport support (if published in router info)
Minimum peers will build tunnels through, as of 0.9.46
@ -163,7 +165,7 @@ Standard (16 bytes):
|type| short_expiration |
+----+----+----+----+----+
Short (NTCP2, 9 bytes):
Short (NTCP2 and SSU2, 9 bytes):
+----+----+----+----+----+----+----+----+
|type| msg_id | short_expira-
@ -211,9 +213,9 @@ Notes
and size are incorporated in the SSU data packet format.
The checksum is not required since errors are caught in decryption.
* When transmitted over [NTCP2]_, the 16-byte standard header is not used. Only a
* When transmitted over [NTCP2]_ or [SSU2]_, the 16-byte standard header is not used. Only a
1-byte type, 4-byte message id, and a 4-byte expiration in seconds are included.
The size is incorporated in the NTCP2 data packet format.
The size is incorporated in the NTCP2 and SSU2 data packet formats.
The checksum is not required since errors are caught in decryption.
* The standard header is also required for I2NP messages contained in other
@ -1700,6 +1702,9 @@ References
.. [SSU-ED]
{{ site_url('docs/transport/ssu', True) }}#establishDirect
.. [SSU2]
{{ spec_url('ssu2') }}
.. [TMDI]
{{ ctags_url('TunnelMessageDeliveryInstructions') }}