text: /* Copyright (c) 2001 Matej Pfajfar.
   * Copyright (c) 2001-2004, Roger Dingledine.
   * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   * Copyright (c) 2007-2012, The Tor Project, Inc. */
  /* See LICENSE for licensing information */
  
  /**
   * \file connection_or.h
   * \brief Header file for connection_or.c.
   **/
  
  #ifndef _TOR_CONNECTION_OR_H
  #define _TOR_CONNECTION_OR_H
  
  void connection_or_remove_from_identity_map(or_connection_t *conn);
  void connection_or_clear_identity_map(void);
  void clear_broken_connection_map(int disable);
  or_connection_t *connection_or_get_for_extend(const char *digest,
                                                const tor_addr_t *target_addr,
                                                const char **msg_out,
                                                int *launch_out);
  void connection_or_set_bad_connections(const char *digest, int force);
  
  void connection_or_block_renegotiation(or_connection_t *conn);
  int connection_or_reached_eof(or_connection_t *conn);
  int connection_or_process_inbuf(or_connection_t *conn);
  int connection_or_flushed_some(or_connection_t *conn);
  int connection_or_finished_flushing(or_connection_t *conn);
  int connection_or_finished_connecting(or_connection_t *conn);
  void connection_or_about_to_close(or_connection_t *conn);
  int connection_or_digest_is_known_relay(const char *id_digest);
  void connection_or_update_token_buckets(smartlist_t *conns,
                                          const or_options_t *options);
  
  void connection_or_connect_failed(or_connection_t *conn,
                                    int reason, const char *msg);
  or_connection_t *connection_or_connect(const tor_addr_t *addr, uint16_t port,
                                         const char *id_digest);
  
  void connection_or_report_broken_states(int severity, int domain);
  
  int connection_tls_start_handshake(or_connection_t *conn, int receiving);
  int connection_tls_continue_handshake(or_connection_t *conn);
  
  int connection_init_or_handshake_state(or_connection_t *conn,
                                         int started_here);
  void connection_or_init_conn_from_address(or_connection_t *conn,
                                            const tor_addr_t *addr,
                                            uint16_t port,
                                            const char *id_digest,
                                            int started_here);
  int connection_or_client_learned_peer_id(or_connection_t *conn,
                                           const uint8_t *peer_id);
  void connection_or_set_circid_type(or_connection_t *conn,
                                     crypto_pk_t *identity_rcvd);
  void or_handshake_state_free(or_handshake_state_t *state);
  void or_handshake_state_record_cell(or_handshake_state_t *state,
                                      const cell_t *cell,
                                      int incoming);
  void or_handshake_state_record_var_cell(or_handshake_state_t *state,
                                          const var_cell_t *cell,
                                          int incoming);
  
  int connection_or_set_state_open(or_connection_t *conn);
  void connection_or_write_cell_to_buf(const cell_t *cell,
                                       or_connection_t *conn);
  void connection_or_write_var_cell_to_buf(const var_cell_t *cell,
                                           or_connection_t *conn);
  int connection_or_send_destroy(circid_t circ_id, or_connection_t *conn,
                                 int reason);
  int connection_or_send_versions(or_connection_t *conn, int v3_plus);
  int connection_or_send_netinfo(or_connection_t *conn);
  int connection_or_send_certs_cell(or_connection_t *conn);
  int connection_or_send_auth_challenge_cell(or_connection_t *conn);
  int connection_or_compute_authenticate_cell_body(or_connection_t *conn,
                                                   uint8_t *out, size_t outlen,
                                                   crypto_pk_t *signing_key,
                                                   int server);
  int connection_or_send_authenticate_cell(or_connection_t *conn, int type);
  
  int is_or_protocol_version_known(uint16_t version);
  
  void cell_pack(packed_cell_t *dest, const cell_t *src);
  void var_cell_pack_header(const var_cell_t *cell, char *hdr_out);
  var_cell_t *var_cell_new(uint16_t payload_len);
  void var_cell_free(var_cell_t *cell);
  
  #endif
  
  