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Merge bitcoin/bitcoin#33414: tor: enable PoW defenses for automatically created hidden services

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c68e3d2c57 doc: add release notes for Tor PoW defenses (Vasil Dimov)
4bae84c94a doc: add a hint to enable PoW defenses to manual hidden services (Vasil Dimov)
4c6798a3d3 tor: enable PoW defenses for automatically created hidden services (Vasil Dimov)
fb993f7604 tor, fuzz: reuse constants instead of duplicating (Vasil Dimov)

Pull request description:

  Enable [PoW defenses](https://tpo.pages.torproject.net/onion-services/ecosystem/technology/security/pow/) for hidden services that we create via Tor Control using the [`ADD_ONION` command](https://spec.torproject.org/control-spec/commands.html#add_onion).

  The ability to do that has been added in [tor-0.4.9.2-alpha](02c1804446). Previous versions return a syntax error to the `ADD_ONION` command with `PoWDefensesEnabled=1`, so the approach here is to try with PoW and if we get syntax error, then retry without PoW.

  Also update `doc/tor.md` with a hint on enabling PoW on manually configured Tor hidden services.

ACKs for top commit:
  willcl-ark:
    ACK c68e3d2c57
  fjahr:
    tACK c68e3d2c57
  sedited:
    ACK c68e3d2c57

Tree-SHA512: 56f57bc770b89389c35a4c0bc2a28804d17b1479ecd4d9b764695d6c9d2994425aee759e71658d7b57088bbe43ce90b94fb972f66d79ef903e0c1a4d6c4562f3
This commit is contained in:
merge-script
2026-03-23 14:54:47 +08:00
parent a703c70bb8 c68e3d2c57
commit 28b93af19d
5 changed files with 50 additions and 12 deletions
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12
src/test/fuzz/torcontrol.cpp
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@@ -49,10 +49,13 @@ FUZZ_TARGET(torcontrol, .init = initialize_torcontrol)
CallOneOf(
fuzzed_data_provider,
[&] {
tor_control_reply.code = 250;
tor_control_reply.code = TOR_REPLY_OK;
},
[&] {
tor_control_reply.code = 510;
tor_control_reply.code = TOR_REPLY_UNRECOGNIZED;
},
[&] {
tor_control_reply.code = TOR_REPLY_SYNTAX_ERROR;
},
[&] {
tor_control_reply.code = fuzzed_data_provider.ConsumeIntegral<int>();
@@ -65,7 +68,10 @@ FUZZ_TARGET(torcontrol, .init = initialize_torcontrol)
CallOneOf(
fuzzed_data_provider,
[&] {
tor_controller.add_onion_cb(dummy_tor_control_connection, tor_control_reply);
tor_controller.add_onion_cb(dummy_tor_control_connection, tor_control_reply, /*pow_was_enabled=*/true);
},
[&] {
tor_controller.add_onion_cb(dummy_tor_control_connection, tor_control_reply, /*pow_was_enabled=*/false);
},
[&] {
tor_controller.auth_cb(dummy_tor_control_connection, tor_control_reply);