Method create

src/client/FSCrypt.cc:454–493

}

int FSCryptKeyStore::create(const char *k, int klen, FSCryptKeyHandlerRef& key_handler, int user)
{
  auto key = std::make_shared<FSCryptKey>();

  int r = key->init(k, klen);
  if (r < 0) {
    return r;
  }
  std::unique_lock wl{lock};

  const auto& id = key->get_identifier();
  auto iter = m.find(id);
  if (iter != m.end()) {
    /* found a key handler entry, check that there is a key there */
    key_handler = iter->second;

    auto& users = key_handler->get_users();
    r = maybe_add_user(&users, user);

    if (r == -EEXIST) {
      return 0; //returns 0 regardless
    }
    key_handler->reset(++epoch, key);
  } else {
    key_handler = std::make_shared<FSCryptKeyHandler>(++epoch, key);

    auto& users = key_handler->get_users();
    r = maybe_add_user(&users, user);
    if (r == -EEXIST) {
      return 0; //returns 0 regardless
    }
    key_handler->present = true;

    auto di = new FSCryptDecryptedInodes();
    key_handler->di = std::shared_ptr<FSCryptDecryptedInodes>((FSCryptDecryptedInodes *)di);
    m[id] = key_handler;
  }

  return 0;
}

int FSCryptKeyStore::_find(const struct ceph_fscrypt_key_identifier& id, FSCryptKeyHandlerRef& kh)
{