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Diffstat (limited to 'src/core/or/circuituse.h')
| -rw-r--r-- | src/core/or/circuituse.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/core/or/circuituse.h b/src/core/or/circuituse.h new file mode 100644 index 0000000000..b65e85d170 --- /dev/null +++ b/src/core/or/circuituse.h @@ -0,0 +1,93 @@ +/* Copyright (c) 2001 Matej Pfajfar. + * Copyright (c) 2001-2004, Roger Dingledine. + * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. + * Copyright (c) 2007-2018, The Tor Project, Inc. */ +/* See LICENSE for licensing information */ + +/** + * \file circuituse.h + * \brief Header file for circuituse.c. + **/ + +#ifndef TOR_CIRCUITUSE_H +#define TOR_CIRCUITUSE_H + +void circuit_expire_building(void); +void circuit_expire_waiting_for_better_guard(void); +void circuit_remove_handled_ports(smartlist_t *needed_ports); +int circuit_stream_is_being_handled(entry_connection_t *conn, uint16_t port, + int min); +void circuit_log_ancient_one_hop_circuits(int age); +#if 0 +int circuit_conforms_to_options(const origin_circuit_t *circ, + const or_options_t *options); +#endif +void circuit_build_needed_circs(time_t now); +void circuit_expire_old_circs_as_needed(time_t now); +void circuit_detach_stream(circuit_t *circ, edge_connection_t *conn); + +void circuit_expire_old_circuits_serverside(time_t now); + +void reset_bandwidth_test(void); +int circuit_enough_testing_circs(void); + +void circuit_has_opened(origin_circuit_t *circ); +void circuit_try_attaching_streams(origin_circuit_t *circ); +void circuit_build_failed(origin_circuit_t *circ); + +/** Flag to set when a circuit should have only a single hop. */ +#define CIRCLAUNCH_ONEHOP_TUNNEL (1<<0) +/** Flag to set when a circuit needs to be built of high-uptime nodes */ +#define CIRCLAUNCH_NEED_UPTIME (1<<1) +/** Flag to set when a circuit needs to be built of high-capacity nodes */ +#define CIRCLAUNCH_NEED_CAPACITY (1<<2) +/** Flag to set when the last hop of a circuit doesn't need to be an + * exit node. */ +#define CIRCLAUNCH_IS_INTERNAL (1<<3) +/** Flag to set when we are trying to launch a v3 rendezvous circuit. We need + * to apply some additional filters on the node picked. */ +#define CIRCLAUNCH_IS_V3_RP (1<<4) +origin_circuit_t *circuit_launch_by_extend_info(uint8_t purpose, + extend_info_t *info, + int flags); +origin_circuit_t *circuit_launch(uint8_t purpose, int flags); +void circuit_reset_failure_count(int timeout); +int connection_ap_handshake_attach_chosen_circuit(entry_connection_t *conn, + origin_circuit_t *circ, + crypt_path_t *cpath); +int connection_ap_handshake_attach_circuit(entry_connection_t *conn); + +void circuit_change_purpose(circuit_t *circ, uint8_t new_purpose); + +int hostname_in_track_host_exits(const or_options_t *options, + const char *address); +void mark_circuit_unusable_for_new_conns(origin_circuit_t *circ); + +int circuit_purpose_is_hidden_service(uint8_t); +int circuit_should_use_vanguards(uint8_t); +void circuit_sent_valid_data(origin_circuit_t *circ, uint16_t relay_body_len); +void circuit_read_valid_data(origin_circuit_t *circ, uint16_t relay_body_len); + +#ifdef TOR_UNIT_TESTS +/* Used only by circuituse.c and test_circuituse.c */ + +STATIC int circuit_is_available_for_use(const circuit_t *circ); + +STATIC int needs_exit_circuits(time_t now, + int *port_needs_uptime, + int *port_needs_capacity); +STATIC int needs_hs_server_circuits(time_t now, + int num_uptime_internal); + +STATIC int needs_hs_client_circuits(time_t now, + int *needs_uptime, + int *needs_capacity, + int num_internal, + int num_uptime_internal); + +STATIC int needs_circuits_for_build(int num); + +#endif /* defined(TOR_UNIT_TESTS) */ + +#endif /* !defined(TOR_CIRCUITUSE_H) */ + |