blob: 4267c7f271b25d59edfeec0d80c5bd63cbf075a0 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2013-2017 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx library is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*/
#include "validation-state.hpp"
#include "validator.hpp"
#include "../verification-helpers.hpp"
#include "util/logger.hpp"
namespace ndn {
namespace security {
namespace v2 {
NDN_LOG_INIT(ndn.security.v2.ValidationState);
#define NDN_LOG_DEBUG_DEPTH(x) NDN_LOG_DEBUG(std::string(this->getDepth() + 1, '>') << " " << x)
#define NDN_LOG_TRACE_DEPTH(x) NDN_LOG_TRACE(std::string(this->getDepth() + 1, '>') << " " << x)
ValidationState::ValidationState()
: m_hasOutcome(false)
{
}
ValidationState::~ValidationState()
{
NDN_LOG_TRACE(__func__);
BOOST_ASSERT(m_hasOutcome);
}
size_t
ValidationState::getDepth() const
{
return m_certificateChain.size();
}
bool
ValidationState::hasSeenCertificateName(const Name& certName)
{
return !m_seenCertificateNames.insert(certName).second;
}
void
ValidationState::addCertificate(const Certificate& cert)
{
m_certificateChain.push_front(cert);
}
const Certificate*
ValidationState::verifyCertificateChain(const Certificate& trustedCert)
{
const Certificate* validatedCert = &trustedCert;
for (auto it = m_certificateChain.begin(); it != m_certificateChain.end(); ++it) {
const auto& certToValidate = *it;
if (!verifySignature(certToValidate, *validatedCert)) {
this->fail({ValidationError::Code::INVALID_SIGNATURE, "Invalid signature of certificate `" +
certToValidate.getName().toUri() + "`"});
m_certificateChain.erase(it, m_certificateChain.end());
return nullptr;
}
else {
NDN_LOG_TRACE_DEPTH("OK signature for certificate `" << certToValidate.getName() << "`");
validatedCert = &certToValidate;
}
}
return validatedCert;
}
/////// DataValidationState
DataValidationState::DataValidationState(const Data& data,
const DataValidationSuccessCallback& successCb,
const DataValidationFailureCallback& failureCb)
: m_data(data)
, m_successCb(successCb)
, m_failureCb(failureCb)
{
BOOST_ASSERT(m_successCb != nullptr);
BOOST_ASSERT(m_failureCb != nullptr);
}
DataValidationState::~DataValidationState()
{
if (!m_hasOutcome) {
this->fail({ValidationError::Code::IMPLEMENTATION_ERROR,
"Validator/policy did not invoke success or failure callback"});
}
}
void
DataValidationState::verifyOriginalPacket(const Certificate& trustedCert)
{
if (verifySignature(m_data, trustedCert)) {
NDN_LOG_TRACE_DEPTH("OK signature for data `" << m_data.getName() << "`");
m_successCb(m_data);
BOOST_ASSERT(!m_hasOutcome);
m_hasOutcome = true;
}
else {
this->fail({ValidationError::Code::INVALID_SIGNATURE, "Invalid signature of data `" +
m_data.getName().toUri() + "`"});
}
}
void
DataValidationState::bypassValidation()
{
NDN_LOG_TRACE_DEPTH("Signature verification bypassed for data `" << m_data.getName() << "`");
m_successCb(m_data);
BOOST_ASSERT(!m_hasOutcome);
m_hasOutcome = true;
}
void
DataValidationState::fail(const ValidationError& error)
{
NDN_LOG_DEBUG_DEPTH(error);
m_failureCb(m_data, error);
BOOST_ASSERT(!m_hasOutcome);
m_hasOutcome = true;
}
const Data&
DataValidationState::getOriginalData() const
{
return m_data;
}
/////// InterestValidationState
InterestValidationState::InterestValidationState(const Interest& interest,
const InterestValidationSuccessCallback& successCb,
const InterestValidationFailureCallback& failureCb)
: m_interest(interest)
, m_failureCb(failureCb)
{
afterSuccess.connect(successCb);
BOOST_ASSERT(successCb != nullptr);
BOOST_ASSERT(m_failureCb != nullptr);
}
InterestValidationState::~InterestValidationState()
{
if (!m_hasOutcome) {
this->fail({ValidationError::Code::IMPLEMENTATION_ERROR,
"Validator/policy did not invoke success or failure callback"});
}
}
void
InterestValidationState::verifyOriginalPacket(const Certificate& trustedCert)
{
if (verifySignature(m_interest, trustedCert)) {
NDN_LOG_TRACE_DEPTH("OK signature for interest `" << m_interest.getName() << "`");
this->afterSuccess(m_interest);
BOOST_ASSERT(!m_hasOutcome);
m_hasOutcome = true;
}
else {
this->fail({ValidationError::Code::INVALID_SIGNATURE, "Invalid signature of interest `" +
m_interest.getName().toUri() + "`"});
}
}
void
InterestValidationState::bypassValidation()
{
NDN_LOG_TRACE_DEPTH("Signature verification bypassed for interest `" << m_interest.getName() << "`");
this->afterSuccess(m_interest);
BOOST_ASSERT(!m_hasOutcome);
m_hasOutcome = true;
}
void
InterestValidationState::fail(const ValidationError& error)
{
NDN_LOG_DEBUG_DEPTH(error);
m_failureCb(m_interest, error);
BOOST_ASSERT(!m_hasOutcome);
m_hasOutcome = true;
}
const Interest&
InterestValidationState::getOriginalInterest() const
{
return m_interest;
}
} // namespace v2
} // namespace security
} // namespace ndn