Use SetupAddressRelay to only initialize `m_addr_known` as needed. For outbound
peers, we initialize the filter before sending our self announcement (not
applicable for block-relay-only connections). For inbound peers, we initialize
the filter when we get an addr related message (ADDR, ADDRV2, GETADDR).
These changes intend to mitigate address blackholes. Since an inbound peer has
to send us an addr related message to become eligible as a candidate for addr
relay, this should reduce our likelihood of sending them self-announcements.
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. Therefore specify the nServices value in the calling code,
not in the messages.py module.
messages.py is for message and primitive data structures. Specifics
about the test framework's p2p implementation should be in p2p.py.
Also rename to P2P_VERSION_RELAY. Also rename msg_version.nRelay to
relay. In Bitcoin Core, this is referred to as fRelay, since it's a
bool, so this field has always been misnamed.
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. Therefore move MY_SUBVERSION to p2p.py.
Also rename to P2P_SUBVERSION.
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. Therefore move MY_VERSION to p2p.py.
Also rename to P2P_VERSION to distinguish it from
other versioning used in Bitcoin/Bitcoin Core.
Also always set the nVersion field in CBlockLocator to 0 and ignore the
field in deserialized messages. The field is not currently used for
anything in Bitcoin Core.
The messages.py module should contain code and helpers for
[de]serializing p2p messages. Specific usage of those messages should
be in p2p.py. Therefore move MIN_VERSION_SUPPORTED to p2p.py.
Also rename to MIN_P2P_VERSION_SUPPORTED to distinguish it from
other versioning used in Bitcoin/Bitcoin Core.
In the interest of increasing our P2P test coverage, add support to create
full-relay or block-relay-only connections. To support this, a P2P connection
spins up a listening thread & uses a callback to trigger the node initiating
the connection.
Co-authored-by: Anthony Towns <aj@erisian.com.au>
bc4a23008762702ffcd6868bcdb8fe2a732640ba Remove redundant p2p lock tacking for tx download functional tests (Antoine Riard)
d3b5eac9a989878e2e09e5fde71c49149b123f18 Add mutation for functional test test_preferred_inv (Antoine Riard)
06efb3163cdf30e74df3f78afc4896b0f55ce937 Add functional test test_txid_inv_delay (Antoine Riard)
a07910abcd580ed07187794cf0e1faf040bb4212 test: Makes wtxidrelay support a generic P2PInterface option (Antoine Riard)
Pull request description:
This is a simple functional test to increase coverage of #19988, checking that txid announcements from txid-relay peers are delayed by TXID_RELAY_DELAY, assuming we have at least another wtxid-relay peer.
You can verify new test with the following diff :
```
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index f14db379f..2a2805df5 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -773,7 +773,7 @@ void PeerManager::AddTxAnnouncement(const CNode& node, const GenTxid& gtxid, std
auto delay = std::chrono::microseconds{0};
const bool preferred = state->fPreferredDownload;
if (!preferred) delay += NONPREF_PEER_TX_DELAY;
- if (!gtxid.IsWtxid() && g_wtxid_relay_peers > 0) delay += TXID_RELAY_DELAY;
+ //if (!gtxid.IsWtxid() && g_wtxid_relay_peers > 0) delay += TXID_RELAY_DELAY;
const bool overloaded = !node.HasPermission(PF_RELAY) &&
m_txrequest.CountInFlight(nodeid) >= MAX_PEER_TX_REQUEST_IN_FLIGHT;
if (overloaded) delay += OVERLOADED_PEER_TX_DELAY;
```
ACKs for top commit:
laanwj:
ACK bc4a23008762702ffcd6868bcdb8fe2a732640ba
Tree-SHA512: 150e806bc5289feda94738756ab375c7fdd23c80c12bd417d3112043e26a91a717dc325a01079ebd02a88b90975ead5bd397ec86eb745c7870ebec379a8aa711
Introduce a new message `sendaddrv2` to signal support for ADDRv2.
Send the new message immediately after sending the `VERACK` message.
Add support for receiving and parsing ADDRv2 messages.
Send ADDRv2 messages (instead of ADDR) to a peer if he has
advertised support for it.
Co-authored-by: Carl Dong <contact@carldong.me>
