1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2012, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file relay.h
* \brief Header file for relay.c.
**/
#ifndef _TOR_RELAY_H
#define _TOR_RELAY_H
extern uint64_t stats_n_relay_cells_relayed;
extern uint64_t stats_n_relay_cells_delivered;
int circuit_receive_relay_cell(cell_t *cell, circuit_t *circ,
cell_direction_t cell_direction);
void relay_header_pack(uint8_t *dest, const relay_header_t *src);
void relay_header_unpack(relay_header_t *dest, const uint8_t *src);
int relay_send_command_from_edge(streamid_t stream_id, circuit_t *circ,
uint8_t relay_command, const char *payload,
size_t payload_len, crypt_path_t *cpath_layer);
int connection_edge_send_command(edge_connection_t *fromconn,
uint8_t relay_command, const char *payload,
size_t payload_len);
int connection_edge_package_raw_inbuf(edge_connection_t *conn,
int package_partial,
int *max_cells);
void connection_edge_consider_sending_sendme(edge_connection_t *conn);
extern uint64_t stats_n_data_cells_packaged;
extern uint64_t stats_n_data_bytes_packaged;
extern uint64_t stats_n_data_cells_received;
extern uint64_t stats_n_data_bytes_received;
void init_cell_pool(void);
void free_cell_pool(void);
void clean_cell_pool(void);
void dump_cell_pool_usage(int severity);
/* For channeltls.c */
void packed_cell_free(packed_cell_t *cell);
void cell_queue_clear(cell_queue_t *queue);
void cell_queue_append(cell_queue_t *queue, packed_cell_t *cell);
void cell_queue_append_packed_copy(cell_queue_t *queue, const cell_t *cell);
void append_cell_to_circuit_queue(circuit_t *circ, channel_t *chan,
cell_t *cell, cell_direction_t direction,
streamid_t fromstream);
void channel_unlink_all_circuits(channel_t *chan);
int channel_flush_from_first_active_circuit(channel_t *chan, int max);
void assert_circuit_mux_okay(channel_t *chan);
void update_circuit_on_cmux(circuit_t *circ, cell_direction_t direction);
int append_address_to_payload(uint8_t *payload_out, const tor_addr_t *addr);
const uint8_t *decode_address_from_payload(tor_addr_t *addr_out,
const uint8_t *payload,
int payload_len);
void circuit_clear_cell_queue(circuit_t *circ, channel_t *chan);
#ifdef RELAY_PRIVATE
int relay_crypt(circuit_t *circ, cell_t *cell, cell_direction_t cell_direction,
crypt_path_t **layer_hint, char *recognized);
#endif
#endif
|