[QPID-1896] No-auth Windows broker fails client connection with "Selected mechanism not supported"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Component/s: C++ Broker

Environment

Windows XP SP 3, VC++ 9.0

• Assignee: Stephen D. Huston
• Reporter: Pete MacKinnon
• Created: 09/Jun/09 19:24
• Updated: 21/Aug/13 10:41
• Resolved: 24/Apr/13 13:12

Description

If a client offers any non-empty auth mechanism (e.g., "PLAIN"), the windows C++ broker will fail to start/tune the connection with "Selected mechanism not supported" eventhough it has authorization disabled ("--auth=no").

void ConnectionHandler::start(const FieldTable& /serverProps/, const Array& mechanisms, const Array& /locales/)
{
checkState(NOT_STARTED, INVALID_STATE_START);
setState(NEGOTIATING);
sasl = SaslFactory::getInstance().create(*this);

std::string mechlist;
bool chosenMechanismSupported = mechanism.empty();
for (Array::const_iterator i = mechanisms.begin(); i != mechanisms.end(); ++i) {
if (!mechanism.empty() && mechanism == (*i)->get<std::string>())

{ chosenMechanismSupported = true; mechlist = (*i)->get<std::string>() + SPACE + mechlist; }

else

{ if (i != mechanisms.begin()) mechlist += SPACE; mechlist += (*i)->get<std::string>(); }

}

if (!chosenMechanismSupported)

{ fail("Selected mechanism not supported: " + mechanism); }

Issue Links

• is duplicated by: QPID-2979 The following SASL mechanisms [PLAIN] specified by the client are not supported by the broker