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211 lines
9.5 KiB
C
211 lines
9.5 KiB
C
/* Copyright (c) 2001 Matej Pfajfar.
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* Copyright (c) 2001-2004, Roger Dingledine.
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2015, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file control.h
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* \brief Header file for control.c.
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**/
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#ifndef TOR_CONTROL_H
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#define TOR_CONTROL_H
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void control_update_global_event_mask(void);
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void control_adjust_event_log_severity(void);
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void control_ports_write_to_file(void);
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/** Log information about the connection <b>conn</b>, protecting it as with
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* CONN_LOG_PROTECT. Example:
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*
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* LOG_FN_CONN(conn, (LOG_DEBUG, "Socket %d wants to write", conn->s));
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**/
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#define LOG_FN_CONN(conn, args) \
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CONN_LOG_PROTECT(conn, log_fn args)
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int connection_control_finished_flushing(control_connection_t *conn);
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int connection_control_reached_eof(control_connection_t *conn);
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void connection_control_closed(control_connection_t *conn);
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int connection_control_process_inbuf(control_connection_t *conn);
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#define EVENT_AUTHDIR_NEWDESCS 0x000D
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#define EVENT_NS 0x000F
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int control_event_is_interesting(int event);
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int control_event_circuit_status(origin_circuit_t *circ,
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circuit_status_event_t e, int reason);
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int control_event_circuit_purpose_changed(origin_circuit_t *circ,
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int old_purpose);
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int control_event_circuit_cannibalized(origin_circuit_t *circ,
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int old_purpose,
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const struct timeval *old_tv_created);
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int control_event_stream_status(entry_connection_t *conn,
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stream_status_event_t e,
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int reason);
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int control_event_or_conn_status(or_connection_t *conn,
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or_conn_status_event_t e, int reason);
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int control_event_bandwidth_used(uint32_t n_read, uint32_t n_written);
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int control_event_stream_bandwidth(edge_connection_t *edge_conn);
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int control_event_stream_bandwidth_used(void);
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int control_event_circ_bandwidth_used(void);
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int control_event_conn_bandwidth(connection_t *conn);
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int control_event_conn_bandwidth_used(void);
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int control_event_circuit_cell_stats(void);
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int control_event_tb_empty(const char *bucket, uint32_t read_empty_time,
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uint32_t write_empty_time,
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int milliseconds_elapsed);
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void control_event_logmsg(int severity, uint32_t domain, const char *msg);
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int control_event_descriptors_changed(smartlist_t *routers);
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int control_event_address_mapped(const char *from, const char *to,
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time_t expires, const char *error,
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const int cached);
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int control_event_or_authdir_new_descriptor(const char *action,
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const char *desc,
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size_t desclen,
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const char *msg);
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int control_event_my_descriptor_changed(void);
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int control_event_networkstatus_changed(smartlist_t *statuses);
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int control_event_newconsensus(const networkstatus_t *consensus);
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int control_event_networkstatus_changed_single(const routerstatus_t *rs);
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int control_event_general_status(int severity, const char *format, ...)
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CHECK_PRINTF(2,3);
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int control_event_client_status(int severity, const char *format, ...)
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CHECK_PRINTF(2,3);
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int control_event_server_status(int severity, const char *format, ...)
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CHECK_PRINTF(2,3);
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int control_event_guard(const char *nickname, const char *digest,
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const char *status);
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int control_event_conf_changed(const smartlist_t *elements);
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int control_event_buildtimeout_set(buildtimeout_set_event_t type,
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const char *args);
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int control_event_signal(uintptr_t signal);
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int init_control_cookie_authentication(int enabled);
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char *get_controller_cookie_file_name(void);
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smartlist_t *decode_hashed_passwords(config_line_t *passwords);
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void disable_control_logging(void);
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void enable_control_logging(void);
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void monitor_owning_controller_process(const char *process_spec);
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void control_event_bootstrap(bootstrap_status_t status, int progress);
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MOCK_DECL(void, control_event_bootstrap_problem,(const char *warn,
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int reason,
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or_connection_t *or_conn));
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void control_event_clients_seen(const char *controller_str);
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void control_event_transport_launched(const char *mode,
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const char *transport_name,
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tor_addr_t *addr, uint16_t port);
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const char *rend_auth_type_to_string(rend_auth_type_t auth_type);
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MOCK_DECL(const char *, node_describe_longname_by_id,(const char *id_digest));
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void control_event_hs_descriptor_requested(const rend_data_t *rend_query,
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const char *desc_id_base32,
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const char *hs_dir);
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void control_event_hs_descriptor_receive_end(const char *action,
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const rend_data_t *rend_query,
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const char *hs_dir,
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const char *reason);
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void control_event_hs_descriptor_received(const rend_data_t *rend_query,
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const char *hs_dir);
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void control_event_hs_descriptor_failed(const rend_data_t *rend_query,
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const char *hs_dir,
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const char *reason);
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void control_free_all(void);
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#ifdef CONTROL_PRIVATE
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/* Recognized asynchronous event types. It's okay to expand this list
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* because it is used both as a list of v0 event types, and as indices
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* into the bitfield to determine which controllers want which events.
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*/
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#define EVENT_MIN_ 0x0001
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#define EVENT_CIRCUIT_STATUS 0x0001
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#define EVENT_STREAM_STATUS 0x0002
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#define EVENT_OR_CONN_STATUS 0x0003
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#define EVENT_BANDWIDTH_USED 0x0004
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#define EVENT_CIRCUIT_STATUS_MINOR 0x0005
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#define EVENT_NEW_DESC 0x0006
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#define EVENT_DEBUG_MSG 0x0007
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#define EVENT_INFO_MSG 0x0008
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#define EVENT_NOTICE_MSG 0x0009
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#define EVENT_WARN_MSG 0x000A
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#define EVENT_ERR_MSG 0x000B
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#define EVENT_ADDRMAP 0x000C
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/* Exposed above */
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// #define EVENT_AUTHDIR_NEWDESCS 0x000D
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#define EVENT_DESCCHANGED 0x000E
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/* Exposed above */
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// #define EVENT_NS 0x000F
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#define EVENT_STATUS_CLIENT 0x0010
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#define EVENT_STATUS_SERVER 0x0011
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#define EVENT_STATUS_GENERAL 0x0012
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#define EVENT_GUARD 0x0013
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#define EVENT_STREAM_BANDWIDTH_USED 0x0014
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#define EVENT_CLIENTS_SEEN 0x0015
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#define EVENT_NEWCONSENSUS 0x0016
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#define EVENT_BUILDTIMEOUT_SET 0x0017
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#define EVENT_SIGNAL 0x0018
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#define EVENT_CONF_CHANGED 0x0019
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#define EVENT_CONN_BW 0x001A
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#define EVENT_CELL_STATS 0x001B
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#define EVENT_TB_EMPTY 0x001C
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#define EVENT_CIRC_BANDWIDTH_USED 0x001D
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#define EVENT_TRANSPORT_LAUNCHED 0x0020
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#define EVENT_HS_DESC 0x0021
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#define EVENT_MAX_ 0x0021
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/* If EVENT_MAX_ ever hits 0x003F, we need to make the mask into a
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* different structure, as it can only handle a maximum left shift of 1<<63. */
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/* Used only by control.c and test.c */
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STATIC size_t write_escaped_data(const char *data, size_t len, char **out);
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STATIC size_t read_escaped_data(const char *data, size_t len, char **out);
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/** Flag for event_format_t. Indicates that we should use the one standard
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format. (Other formats previous existed, and are now deprecated)
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*/
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#define ALL_FORMATS 1
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/** Bit field of flags to select how to format a controller event. Recognized
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* flag is ALL_FORMATS. */
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typedef int event_format_t;
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#ifdef TOR_UNIT_TESTS
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MOCK_DECL(STATIC void,
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send_control_event_string,(uint16_t event, event_format_t which,
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const char *msg));
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void control_testing_set_global_event_mask(uint64_t mask);
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#endif
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/** Helper structure: temporarily stores cell statistics for a circuit. */
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typedef struct cell_stats_t {
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/** Number of cells added in app-ward direction by command. */
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uint64_t added_cells_appward[CELL_COMMAND_MAX_ + 1];
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/** Number of cells added in exit-ward direction by command. */
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uint64_t added_cells_exitward[CELL_COMMAND_MAX_ + 1];
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/** Number of cells removed in app-ward direction by command. */
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uint64_t removed_cells_appward[CELL_COMMAND_MAX_ + 1];
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/** Number of cells removed in exit-ward direction by command. */
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uint64_t removed_cells_exitward[CELL_COMMAND_MAX_ + 1];
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/** Total waiting time of cells in app-ward direction by command. */
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uint64_t total_time_appward[CELL_COMMAND_MAX_ + 1];
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/** Total waiting time of cells in exit-ward direction by command. */
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uint64_t total_time_exitward[CELL_COMMAND_MAX_ + 1];
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} cell_stats_t;
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void sum_up_cell_stats_by_command(circuit_t *circ,
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cell_stats_t *cell_stats);
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void append_cell_stats_by_command(smartlist_t *event_parts,
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const char *key,
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const uint64_t *include_if_non_zero,
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const uint64_t *number_to_include);
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void format_cell_stats(char **event_string, circuit_t *circ,
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cell_stats_t *cell_stats);
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STATIC char *get_bw_samples(void);
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#endif
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#endif
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