112 lines
4.2 KiB
C++
112 lines
4.2 KiB
C++
/*
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Copyright 2015-2016 Amebis
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Copyright 2016 GÉANT
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This file is part of GÉANTLink.
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GÉANTLink is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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GÉANTLink is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GÉANTLink. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "StdAfx.h"
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using namespace std;
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using namespace winstd;
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//////////////////////////////////////////////////////////////////////
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// eap::method_pap
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//////////////////////////////////////////////////////////////////////
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eap::method_pap::method_pap(_In_ module &module, _In_ config_method_pap &cfg, _In_ credentials_pass &cred) :
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m_cred(cred),
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m_phase(phase_unknown),
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method_noneap(module, cfg, cred)
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{
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}
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eap::method_pap::method_pap(_Inout_ method_pap &&other) :
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m_cred ( other.m_cred ),
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m_phase (std::move(other.m_phase )),
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method_noneap(std::move(other ))
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{
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}
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eap::method_pap& eap::method_pap::operator=(_Inout_ method_pap &&other)
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{
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if (this != std::addressof(other)) {
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assert(std::addressof(m_cred) == std::addressof(other.m_cred)); // Move method with same credentials only!
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(method_noneap&)*this = std::move(other );
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m_phase = std::move(other.m_phase );
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}
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return *this;
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}
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void eap::method_pap::begin_session(
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_In_ DWORD dwFlags,
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_In_ const EapAttributes *pAttributeArray,
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_In_ HANDLE hTokenImpersonateUser,
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_In_opt_ DWORD dwMaxSendPacketSize)
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{
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method_noneap::begin_session(dwFlags, pAttributeArray, hTokenImpersonateUser, dwMaxSendPacketSize);
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m_module.log_event(&EAPMETHOD_METHOD_HANDSHAKE_START2, event_data((unsigned int)eap_type_legacy_pap), event_data::blank);
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m_phase = phase_init;
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}
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void eap::method_pap::process_request_packet(
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_In_bytecount_(dwReceivedPacketSize) const void *pReceivedPacket,
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_In_ DWORD dwReceivedPacketSize,
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_Out_ EapPeerMethodOutput *pEapOutput)
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{
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UNREFERENCED_PARAMETER(pReceivedPacket);
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assert(pReceivedPacket || dwReceivedPacketSize == 0);
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assert(pEapOutput);
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m_module.log_event(&EAPMETHOD_PACKET_RECV, event_data((unsigned int)eap_type_legacy_pap), event_data((unsigned int)dwReceivedPacketSize), event_data::blank);
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switch (m_phase) {
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case phase_init: {
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// Convert username and password to UTF-8.
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sanitizing_string identity_utf8, password_utf8;
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WideCharToMultiByte(CP_UTF8, 0, m_cred.m_identity.c_str(), (int)m_cred.m_identity.length(), identity_utf8, NULL, NULL);
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WideCharToMultiByte(CP_UTF8, 0, m_cred.m_password.c_str(), (int)m_cred.m_password.length(), password_utf8, NULL, NULL);
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// PAP passwords must be padded to 16B boundary according to RFC 5281. Will not add random extra padding here, as length obfuscation should be done by outer transport layers.
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size_t padding_password_ex = (16 - password_utf8.length()) % 16;
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password_utf8.append(padding_password_ex, 0);
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m_packet_res.clear();
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// Diameter AVP (User-Name=1, User-Password=2)
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append_avp(1, diameter_avp_flag_mandatory, identity_utf8.data(), (unsigned int)identity_utf8.size());
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append_avp(2, diameter_avp_flag_mandatory, password_utf8.data(), (unsigned int)password_utf8.size());
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m_phase = phase_finished;
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m_cfg.m_last_status = config_method::status_cred_invalid; // Blame credentials if we fail beyond this point.
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break;
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}
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case phase_finished:
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break;
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}
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pEapOutput->fAllowNotifications = TRUE;
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pEapOutput->action = EapPeerMethodResponseActionSend;
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}
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