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Prop. 159 peer test updates

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zzz
2022-06-22 10:49:49 -04:00
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i2p2www/spec/proposals/159-ssu2.rst
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@ -5,7 +5,7 @@ SSU2
:author: eyedeekay, orignal, zlatinb, zzz
:created: 2021-09-12
:thread: http://zzz.i2p/topics/2612
:lastupdated: 2022-06-20
:lastupdated: 2022-06-22
:status: Open
:target: 0.9.56
@ -4608,11 +4608,11 @@ containing the request signed by Alice,
or it may be regenerated. Signature is optional.
Connection IDs: The two connection IDs are derived from the test nonce.
For messages sent from Charlie to Alice, the Destination Connection ID
For messages 5 and 7 sent from Charlie to Alice, the Destination Connection ID
is two copies of the 4-byte big-endian test nonce, i.e. ((nonce << 32) | nonce).
The Source Connection ID is the inverse of the Destination Connection ID,
i.e. ~((nonce << 32) | nonce).
For messages sent from Alice to Charlie, swap the two connection IDs.
For message 6 sent from Alice to Charlie, swap the two connection IDs.
Address block contents:
@ -5849,7 +5849,8 @@ either in the same payload (if there's room), or in a previous message.
2: rejected by Bob, no Charlie available
3: rejected by Bob, limit exceeded
4: rejected by Bob, signature failure
5-63: other rejected by Bob codes TBD
5: rejected by Bob, address unsupported
6-63: other rejected by Bob codes TBD
64: rejected by Charlie, reason unspecified
65: rejected by Charlie, unsupported address
66: rejected by Charlie, limit exceeded
@ -7080,6 +7081,8 @@ Message Path Intro Key
Versions
------------------
Cross-version peer testing is not supported.
The only allowed version combination is where all peers are version 2.
@ -7097,13 +7100,29 @@ Alice/Bob Bob/Charlie Alice/Charlie Supported
========= =========== ============= =============
Retransmissions: Messages 1-4 are in-session and are covered by the
Retransmissions
------------------
Messages 1-4 are in-session and are covered by the
data phase ACK and retransmission processes.
Peer Test blocks are ack-eliciting.
Messages 5-7 may be retransmitted, unchanged.
IPv6 Notes
------------------
As in SSU 1, testing of IPv6 addresses is supported,
and Alice-Bob and Alice-Charlie communication may be via IPv6,
if Bob and Charlie indicate support with a 'B' capability in their published IPv6 address.
See Proposal 126 for details.
As in SSU 1,
Alice sends the request to Bob using an existing session over the transport (IPv4 or IPv6) that she wishes to test.
When Bob receives a request from Alice via IPv4, Bob must select a Charlie that advertises an IPv4 address.
When Bob receives a request from Alice via IPv6, Bob must select a Charlie that advertises an IPv6 address.
The actual Bob-Charlie communication may be via IPv4 or IPv6 (i.e., independent of Alice's address type).
Relay Process
========================