src/or/circuitbuild.h

   1 /* Copyright (c) 2001 Matej Pfajfar.
   2  * Copyright (c) 2001-2004, Roger Dingledine.
   3  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   4  * Copyright (c) 2007-2013, The Tor Project, Inc. */
   5 /* See LICENSE for licensing information */
   6
   7 /**
   8  * \file circuitbuild.h
   9  * \brief Header file for circuitbuild.c.
  10  **/
  11
  12 #ifndef TOR_CIRCUITBUILD_H
  13 #define TOR_CIRCUITBUILD_H
  14
  15 char *circuit_list_path(origin_circuit_t *circ, int verbose);
  16 char *circuit_list_path_for_controller(origin_circuit_t *circ);
  17 void circuit_log_path(int severity, unsigned int domain,
  18                       origin_circuit_t *circ);
  19 void circuit_rep_hist_note_result(origin_circuit_t *circ);
  20 origin_circuit_t *origin_circuit_init(uint8_t purpose, int flags);
  21 origin_circuit_t *circuit_establish_circuit(uint8_t purpose,
  22                                             extend_info_t *exit,
  23                                             int flags);
  24 int circuit_handle_first_hop(origin_circuit_t *circ);
  25 void circuit_n_chan_done(channel_t *chan, int status);
  26 int inform_testing_reachability(void);
  27 int circuit_timeout_want_to_count_circ(origin_circuit_t *circ);
  28 int circuit_send_next_onion_skin(origin_circuit_t *circ);
  29 void circuit_note_clock_jumped(int seconds_elapsed);
  30 int circuit_extend(cell_t *cell, circuit_t *circ);
  31 int circuit_init_cpath_crypto(crypt_path_t *cpath, const char *key_data,
  32                               int reverse);
  33 struct created_cell_t;
  34 int circuit_finish_handshake(origin_circuit_t *circ,
  35                              const struct created_cell_t *created_cell);
  36 int circuit_truncated(origin_circuit_t *circ, crypt_path_t *layer,
  37                       int reason);
  38 int onionskin_answer(or_circuit_t *circ,
  39                      const struct created_cell_t *created_cell,
  40                      const char *keys,
  41                      const uint8_t *rend_circ_nonce);
  42 int circuit_all_predicted_ports_handled(time_t now, int *need_uptime,
  43                                         int *need_capacity);
  44
  45 int circuit_append_new_exit(origin_circuit_t *circ, extend_info_t *info);
  46 int circuit_extend_to_new_exit(origin_circuit_t *circ, extend_info_t *info);
  47 void onion_append_to_cpath(crypt_path_t **head_ptr, crypt_path_t *new_hop);
  48 extend_info_t *extend_info_new(const char *nickname, const char *digest,
  49                                crypto_pk_t *onion_key,
  50                                const curve25519_public_key_t *curve25519_key,
  51                                const tor_addr_t *addr, uint16_t port);
  52 extend_info_t *extend_info_from_node(const node_t *r, int for_direct_connect);
  53 extend_info_t *extend_info_dup(extend_info_t *info);
  54 void extend_info_free(extend_info_t *info);
  55 const node_t *build_state_get_exit_node(cpath_build_state_t *state);
  56 const char *build_state_get_exit_nickname(cpath_build_state_t *state);
  57
  58 const node_t *choose_good_entry_server(uint8_t purpose,
  59                                        cpath_build_state_t *state);
  60
  61 #ifdef CIRCUITBUILD_PRIVATE
  62 STATIC circid_t get_unique_circ_id_by_chan(channel_t *chan);
  63 #endif
  64
  65 #endif
  66