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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) 2007-2011, 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(time_t now);
void circuit_remove_handled_ports(smartlist_t *needed_ports);
int circuit_stream_is_being_handled(edge_connection_t *conn, uint16_t port,
int min);
int circuit_conforms_to_options(const origin_circuit_t *circ,
const or_options_t *options);
void circuit_build_needed_circs(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_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)
origin_circuit_t *circuit_launch_by_extend_info(uint8_t purpose,
extend_info_t *info,
int flags);
origin_circuit_t *circuit_launch_by_router(uint8_t purpose,
routerinfo_t *exit, int flags);
void circuit_reset_failure_count(int timeout);
int connection_ap_handshake_attach_chosen_circuit(edge_connection_t *conn,
origin_circuit_t *circ,
crypt_path_t *cpath);
int connection_ap_handshake_attach_circuit(edge_connection_t *conn);
#endif
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