77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
|
#include "crl_store.hpp"
|
||
|
|
#include "certificate_revocation_list.hpp"
|
||
|
|
#include "filesystem.hpp"
|
||
|
|
#include "hexstring.hpp"
|
||
|
|
#include "security_module.hpp"
|
||
|
|
|
||
|
|
namespace vanetza
|
||
|
|
{
|
||
|
|
namespace pki
|
||
|
|
{
|
||
|
|
|
||
|
|
CrlFilesystemStore::CrlFilesystemStore(std::shared_ptr<SecurityModule> security, const std::filesystem::path& root) :
|
||
|
|
m_security(security), m_root(root)
|
||
|
|
{
|
||
|
|
std::filesystem::create_directories(m_root);
|
||
|
|
for (const auto& entry : std::filesystem::directory_iterator(m_root)) {
|
||
|
|
if (!entry.is_regular_file() || entry.path().extension() != ".crl") {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
ByteBuffer buf = read(entry.path());
|
||
|
|
CertificateRevocationList crl;
|
||
|
|
if (crl.decode(buf)) {
|
||
|
|
index(crl);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
bool CrlFilesystemStore::store(const CertificateRevocationList& crl)
|
||
|
|
{
|
||
|
|
auto issuer = index(crl);
|
||
|
|
if (!issuer) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
write(filename(*issuer), crl.encode());
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool CrlFilesystemStore::is_revoked(const security::HashedId8& issuer, const security::HashedId8& cert) const
|
||
|
|
{
|
||
|
|
auto it = m_revoked.find(issuer);
|
||
|
|
if (it == m_revoked.end()) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return it->second.count(cert) != 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::filesystem::path CrlFilesystemStore::filename(const HashedId8& id) const
|
||
|
|
{
|
||
|
|
return m_root / (hexstring(id.octets) + ".crl");
|
||
|
|
}
|
||
|
|
|
||
|
|
boost::optional<HashedId8> CrlFilesystemStore::index(const CertificateRevocationList& crl)
|
||
|
|
{
|
||
|
|
auto issuer = crl.get_hashed_id8(*m_security);
|
||
|
|
if (!issuer) {
|
||
|
|
return boost::none;
|
||
|
|
}
|
||
|
|
auto entries = crl.revoked_entries();
|
||
|
|
if (!entries) {
|
||
|
|
return boost::none;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Empty CRL is valid: it withdraws any prior revocations from this issuer.
|
||
|
|
// Erase the existing bucket and only create a new one if there's content.
|
||
|
|
m_revoked.erase(issuer->octets);
|
||
|
|
if (!entries->empty()) {
|
||
|
|
auto& bucket = m_revoked[issuer->octets];
|
||
|
|
for (const auto& cert : *entries) {
|
||
|
|
bucket.insert(cert.octets);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return issuer;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace pki
|
||
|
|
} // namespace vanetza
|