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Merge #15651: torcontrol: Use the default/standard network port for Tor hidden services, even if the internal port is set differently

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8a2656702b torcontrol: Use the default/standard network port for Tor hidden services, even if the internal port is set differently (Luke Dashjr)

Pull request description:

  Currently, the hidden service is published on the same port as the public listening port.
  But if a non-standard port is configured, this can be used to guess (pretty reliably) that the public IP and the hidden service are the same node.

ACKs for top commit:
  practicalswift:
    utACK 8a2656702b
  naumenkogs:
    utACK 8a26567
  laanwj:
    utACK 8a2656702b

Tree-SHA512: 737c8da4f7c3f0bb22a338647d357987f5808156e3f38864168d0d8c2e2b171160812f7da4de11eef602902b304e357d76052950b72d7b3b83535b0fdd05fadc
This commit is contained in:
Wladimir J. van der Laan 2019-06-18 17:28:32 +02:00
commit 6c9d3c704f
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1 changed files with 4 additions and 4 deletions
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8
src/torcontrol.cpp
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@ -3,6 +3,7 @@
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <chainparams.h>
#include <torcontrol.h>
#include <util/strencodings.h>
#include <netbase.h>
@ -500,7 +501,7 @@ void TorController::add_onion_cb(TorControlConnection& _conn, const TorControlRe
}
return;
}
service = LookupNumeric(std::string(service_id+".onion").c_str(), GetListenPort());
service = LookupNumeric(std::string(service_id+".onion").c_str(), Params().GetDefaultPort());
LogPrintf("tor: Got service ID %s, advertising service %s\n", service_id, service.ToString());
if (WriteBinaryFile(GetPrivateKeyFile(), private_key)) {
LogPrint(BCLog::TOR, "tor: Cached service private key to %s\n", GetPrivateKeyFile().string());
@ -534,9 +535,8 @@ void TorController::auth_cb(TorControlConnection& _conn, const TorControlReply&
if (private_key.empty()) // No private key, generate one
private_key = "NEW:RSA1024"; // Explicitly request RSA1024 - see issue #9214
// Request hidden service, redirect port.
// Note that the 'virtual' port doesn't have to be the same as our internal port, but this is just a convenient
// choice. TODO; refactor the shutdown sequence some day.
_conn.Command(strprintf("ADD_ONION %s Port=%i,127.0.0.1:%i", private_key, GetListenPort(), GetListenPort()),
// Note that the 'virtual' port is always the default port to avoid decloaking nodes using other ports.
_conn.Command(strprintf("ADD_ONION %s Port=%i,127.0.0.1:%i", private_key, Params().GetDefaultPort(), GetListenPort()),
std::bind(&TorController::add_onion_cb, this, std::placeholders::_1, std::placeholders::_2));
} else {
LogPrintf("tor: Authentication failed\n");