Method tryKeyType

src/remote/remote.cpp:1363–1445

}

bool rem_port::tryKeyType(const KnownServerKey& srvKey, InternalCryptKey* cryptKey)
{
	if (port_crypt_complete)
	{
		return true;
	}

	if (srvKey.type != cryptKey->keyName)
	{
		return false;
	}

	if (getPortConfig()->getWireCrypt(WC_CLIENT) == WIRE_CRYPT_DISABLED)
	{
		port_crypt_complete = true;
		return true;
	}

	// we got correct key's type pair
	// check what about crypt plugin for it
	ParsedList clientPlugins(getPortConfig()->getPlugins(IPluginManager::TYPE_WIRE_CRYPT));
	for (unsigned n = 0; n < clientPlugins.getCount(); ++n)
	{
		PathName p(clientPlugins[n]);
		WIRECRYPT_DEBUG(fprintf(stderr, "tryKeyType, client plugin %s\n", p.c_str()));
		if (srvKey.plugins.find(" " + p + " ") != PathName::npos)
		{
			WIRECRYPT_DEBUG(fprintf(stderr, "tryKeyType, server listed plugin %s\n", p.c_str()));
			GetPlugins<IWireCryptPlugin>
				cp(IPluginManager::TYPE_WIRE_CRYPT, p.c_str());
			if (cp.hasData())
			{
				WIRECRYPT_DEBUG(fprintf(stderr, "tryKeyType, client loaded plugin %s\n", p.c_str()));
				LocalStatus st;
				CheckStatusWrapper statusWrapper(&st);

				// Pass IV to plugin
				//const UCharBuffer* specificData = srvKey.findSpecificData(p);
				auto* specificData = srvKey.findSpecificData(p);
				if (specificData)
				{
					cp.plugin()->setSpecificData(&statusWrapper, srvKey.type.c_str(),
						specificData->getCount(), specificData->begin());
					check(&st, isc_wish_list);
				}

				// Pass key to plugin
				cp.plugin()->setKey(&statusWrapper, cryptKey);
				if (st.getState() & IStatus::STATE_ERRORS)
				{
					status_exception::raise(&st);
				}

				// Looks like we've found correct crypt plugin and key for it
				port_crypt_plugin = cp.plugin();
				port_crypt_plugin->addRef();

				// Now it's time to notify server about choice done