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/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2020, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file circuitbuild.h
* \brief Header file for circuitbuild.c.
**/
#ifndef TOR_CIRCUITBUILD_H
#define TOR_CIRCUITBUILD_H
struct ed25519_public_key_t;
struct curve25519_public_key_t;
int route_len_for_purpose(uint8_t purpose, extend_info_t *exit_ei);
char *circuit_list_path(origin_circuit_t *circ, int verbose);
char *circuit_list_path_for_controller(origin_circuit_t *circ);
void circuit_log_path(int severity, unsigned int domain,
origin_circuit_t *circ);
origin_circuit_t *origin_circuit_init(uint8_t purpose, int flags);
origin_circuit_t *circuit_establish_circuit(uint8_t purpose,
extend_info_t *exit,
int flags);
struct circuit_guard_state_t *origin_circuit_get_guard_state(
origin_circuit_t *circ);
int circuit_handle_first_hop(origin_circuit_t *circ);
void circuit_n_chan_done(channel_t *chan, int status,
int close_origin_circuits);
int circuit_timeout_want_to_count_circ(const origin_circuit_t *circ);
int circuit_send_next_onion_skin(origin_circuit_t *circ);
void circuit_note_clock_jumped(int64_t seconds_elapsed, bool was_idle);
struct created_cell_t;
int circuit_finish_handshake(origin_circuit_t *circ,
const struct created_cell_t *created_cell);
int circuit_truncated(origin_circuit_t *circ, int reason);
MOCK_DECL(int, circuit_all_predicted_ports_handled, (time_t now,
int *need_uptime,
int *need_capacity));
int circuit_append_new_exit(origin_circuit_t *circ, extend_info_t *info);
int circuit_extend_to_new_exit(origin_circuit_t *circ, extend_info_t *info);
int circuit_can_use_tap(const origin_circuit_t *circ);
int circuit_has_usable_onion_key(const origin_circuit_t *circ);
const uint8_t *build_state_get_exit_rsa_id(cpath_build_state_t *state);
MOCK_DECL(const node_t *,
build_state_get_exit_node,(cpath_build_state_t *state));
const char *build_state_get_exit_nickname(cpath_build_state_t *state);
struct circuit_guard_state_t;
const node_t *choose_good_entry_server(uint8_t purpose,
cpath_build_state_t *state,
struct circuit_guard_state_t **guard_state_out);
void circuit_upgrade_circuits_from_guard_wait(void);
MOCK_DECL(channel_t *, channel_connect_for_circuit,(const extend_info_t *ei));
struct create_cell_t;
MOCK_DECL(int,
circuit_deliver_create_cell,(circuit_t *circ,
const struct create_cell_t *create_cell,
int relayed));
#ifdef CIRCUITBUILD_PRIVATE
STATIC circid_t get_unique_circ_id_by_chan(channel_t *chan);
STATIC int new_route_len(uint8_t purpose, extend_info_t *exit_ei,
const smartlist_t *nodes);
MOCK_DECL(STATIC int, count_acceptable_nodes, (const smartlist_t *nodes,
int direct));
STATIC int onion_extend_cpath(origin_circuit_t *circ);
STATIC int
onion_pick_cpath_exit(origin_circuit_t *circ, extend_info_t *exit_ei,
int is_hs_v3_rp_circuit);
STATIC int cpath_build_state_to_crn_flags(const cpath_build_state_t *state);
STATIC int cpath_build_state_to_crn_ipv6_extend_flag(
const cpath_build_state_t *state,
int cur_len);
#endif /* defined(CIRCUITBUILD_PRIVATE) */
#endif /* !defined(TOR_CIRCUITBUILD_H) */
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