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) 2007-2010, The Tor Project, Inc. */
5 /* See LICENSE for licensing information */
9 * \brief Header file for relay.c.
15 extern uint64_t stats_n_relay_cells_relayed
;
16 extern uint64_t stats_n_relay_cells_delivered
;
18 int circuit_receive_relay_cell(cell_t
*cell
, circuit_t
*circ
,
19 cell_direction_t cell_direction
);
21 void relay_header_pack(char *dest
, const relay_header_t
*src
);
22 void relay_header_unpack(relay_header_t
*dest
, const char *src
);
23 int relay_send_command_from_edge(streamid_t stream_id
, circuit_t
*circ
,
24 uint8_t relay_command
, const char *payload
,
25 size_t payload_len
, crypt_path_t
*cpath_layer
);
26 int connection_edge_send_command(edge_connection_t
*fromconn
,
27 uint8_t relay_command
, const char *payload
,
29 int connection_edge_package_raw_inbuf(edge_connection_t
*conn
,
32 void connection_edge_consider_sending_sendme(edge_connection_t
*conn
);
34 extern uint64_t stats_n_data_cells_packaged
;
35 extern uint64_t stats_n_data_bytes_packaged
;
36 extern uint64_t stats_n_data_cells_received
;
37 extern uint64_t stats_n_data_bytes_received
;
39 void init_cell_pool(void);
40 void free_cell_pool(void);
41 void clean_cell_pool(void);
42 void dump_cell_pool_usage(int severity
);
44 void cell_queue_clear(cell_queue_t
*queue
);
45 void cell_queue_append(cell_queue_t
*queue
, packed_cell_t
*cell
);
46 void cell_queue_append_packed_copy(cell_queue_t
*queue
, const cell_t
*cell
);
48 void append_cell_to_circuit_queue(circuit_t
*circ
, or_connection_t
*orconn
,
49 cell_t
*cell
, cell_direction_t direction
,
50 streamid_t fromstream
);
51 void connection_or_unlink_all_active_circs(or_connection_t
*conn
);
52 int connection_or_flush_from_first_active_circuit(or_connection_t
*conn
,
54 void assert_active_circuits_ok(or_connection_t
*orconn
);
55 void make_circuit_inactive_on_conn(circuit_t
*circ
, or_connection_t
*conn
);
56 void make_circuit_active_on_conn(circuit_t
*circ
, or_connection_t
*conn
);
58 int append_address_to_payload(char *payload_out
, const tor_addr_t
*addr
);
59 const char *decode_address_from_payload(tor_addr_t
*addr_out
,
62 unsigned cell_ewma_get_tick(void);
63 void cell_ewma_set_scale_factor(or_options_t
*options
,
64 networkstatus_t
*consensus
);
65 void circuit_clear_cell_queue(circuit_t
*circ
, or_connection_t
*orconn
);