Exemplos de circuit_free_cpath em C++ (Cpp)

Exemplo n.º 1

Arquivo: circuitlist.c Projeto: kitsune-dsu/kitsune-tor

/** Deallocate space associated with circ.
 */
static void
circuit_free(circuit_t *circ)
{
  void *mem;
  size_t memlen;
  tor_assert(circ);
  if (CIRCUIT_IS_ORIGIN(circ)) {
    origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
    mem = ocirc;
    memlen = sizeof(origin_circuit_t);
    tor_assert(circ->magic == ORIGIN_CIRCUIT_MAGIC);
    if (ocirc->build_state) {
      if (ocirc->build_state->chosen_exit)
        extend_info_free(ocirc->build_state->chosen_exit);
      if (ocirc->build_state->pending_final_cpath)
        circuit_free_cpath_node(ocirc->build_state->pending_final_cpath);
    }
    tor_free(ocirc->build_state);

    circuit_free_cpath(ocirc->cpath);
    if (ocirc->intro_key)
      crypto_free_pk_env(ocirc->intro_key);
    if (ocirc->rend_data)
      rend_data_free(ocirc->rend_data);
  } else {
    or_circuit_t *ocirc = TO_OR_CIRCUIT(circ);
    mem = ocirc;
    memlen = sizeof(or_circuit_t);
    tor_assert(circ->magic == OR_CIRCUIT_MAGIC);

    if (ocirc->p_crypto)
      crypto_free_cipher_env(ocirc->p_crypto);
    if (ocirc->p_digest)
      crypto_free_digest_env(ocirc->p_digest);
    if (ocirc->n_crypto)
      crypto_free_cipher_env(ocirc->n_crypto);
    if (ocirc->n_digest)
      crypto_free_digest_env(ocirc->n_digest);

    if (ocirc->rend_splice) {
      or_circuit_t *other = ocirc->rend_splice;
      tor_assert(other->_base.magic == OR_CIRCUIT_MAGIC);
      other->rend_splice = NULL;
    }

    /* remove from map. */
    circuit_set_p_circid_orconn(ocirc, 0, NULL);

    /* Clear cell queue _after_ removing it from the map.  Otherwise our
     * "active" checks will be violated. */
    cell_queue_clear(&ocirc->p_conn_cells);
  }

  if (circ->n_hop)
    extend_info_free(circ->n_hop);
  tor_free(circ->n_conn_onionskin);

  /* Remove from map. */
  circuit_set_n_circid_orconn(circ, 0, NULL);

  /* Clear cell queue _after_ removing it from the map.  Otherwise our
   * "active" checks will be violated. */
  cell_queue_clear(&circ->n_conn_cells);

  memset(circ, 0xAA, memlen); /* poison memory */
  tor_free(mem);
}

Exemplo n.º 2

Arquivo: circuitlist.c Projeto: jenpocheng/tor-0.2.3.25

/** Deallocate space associated with circ.
 */
static void
circuit_free(circuit_t *circ)
{
  void *mem;
  size_t memlen;
  if (!circ)
    return;

  if (CIRCUIT_IS_ORIGIN(circ)) {
    origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
    mem = ocirc;
    memlen = sizeof(origin_circuit_t);
    tor_assert(circ->magic == ORIGIN_CIRCUIT_MAGIC);
    if (ocirc->build_state) {
        extend_info_free(ocirc->build_state->chosen_exit);
        circuit_free_cpath_node(ocirc->build_state->pending_final_cpath);
        cpath_ref_decref(ocirc->build_state->service_pending_final_cpath_ref);
    }
    tor_free(ocirc->build_state);

    circuit_free_cpath(ocirc->cpath);

    crypto_pk_free(ocirc->intro_key);
    rend_data_free(ocirc->rend_data);

    tor_free(ocirc->dest_address);
    if (ocirc->socks_username) {
      memwipe(ocirc->socks_username, 0x12, ocirc->socks_username_len);
      tor_free(ocirc->socks_username);
    }
    if (ocirc->socks_password) {
      memwipe(ocirc->socks_password, 0x06, ocirc->socks_password_len);
      tor_free(ocirc->socks_password);
    }
  } else {
    or_circuit_t *ocirc = TO_OR_CIRCUIT(circ);
    /* Remember cell statistics for this circuit before deallocating. */
    if (get_options()->CellStatistics)
      rep_hist_buffer_stats_add_circ(circ, time(NULL));
    mem = ocirc;
    memlen = sizeof(or_circuit_t);
    tor_assert(circ->magic == OR_CIRCUIT_MAGIC);

    crypto_cipher_free(ocirc->p_crypto);
    crypto_digest_free(ocirc->p_digest);
    crypto_cipher_free(ocirc->n_crypto);
    crypto_digest_free(ocirc->n_digest);

    if (ocirc->rend_splice) {
      or_circuit_t *other = ocirc->rend_splice;
      tor_assert(other->_base.magic == OR_CIRCUIT_MAGIC);
      other->rend_splice = NULL;
    }

    /* remove from map. */
    circuit_set_p_circid_orconn(ocirc, 0, NULL);

    /* Clear cell queue _after_ removing it from the map.  Otherwise our
     * "active" checks will be violated. */
    cell_queue_clear(&ocirc->p_conn_cells);
  }

  extend_info_free(circ->n_hop);
  tor_free(circ->n_conn_onionskin);

  /* Remove from map. */
  circuit_set_n_circid_orconn(circ, 0, NULL);

  /* Clear cell queue _after_ removing it from the map.  Otherwise our
   * "active" checks will be violated. */
  cell_queue_clear(&circ->n_conn_cells);

  memwipe(mem, 0xAA, memlen); /* poison memory */
  tor_free(mem);
}