tor/src/or/relay.h
Nick Mathewson a3e0a87d95 Completely refactor how FILENAME_PRIVATE works
We previously used FILENAME_PRIVATE identifiers mostly for
identifiers exposed only to the unit tests... but also for
identifiers exposed to the benchmarker, and sometimes for
identifiers exposed to a similar module, and occasionally for no
really good reason at all.

Now, we use FILENAME_PRIVATE identifiers for identifiers shared by
Tor and the unit tests.  They should be defined static when we
aren't building the unit test, and globally visible otherwise. (The
STATIC macro will keep us honest here.)

For identifiers used only by the unit tests and never by Tor at all,
on the other hand, we wrap them in #ifdef TOR_UNIT_TESTS.

This is not the motivating use case for the split test/non-test
build system; it's just a test example to see how it works, and to
take a chance to clean up the code a little.
2013-07-10 15:20:10 -04:00

88 lines
3.7 KiB
C

/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2013, 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,
const char *filename, int lineno);
#define relay_send_command_from_edge(stream_id, circ, relay_command, payload, \
payload_len, cpath_layer) \
relay_send_command_from_edge_((stream_id), (circ), (relay_command), \
(payload), (payload_len), (cpath_layer), \
__FILE__, __LINE__)
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);
size_t packed_cell_mem_cost(void);
/* 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,
int wide_circ_ids, int use_stats);
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,
const char *file, int lineno);
#define update_circuit_on_cmux(circ, direction) \
update_circuit_on_cmux_((circ), (direction), SHORT_FILE__, __LINE__)
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);
void stream_choice_seed_weak_rng(void);
int relay_crypt(circuit_t *circ, cell_t *cell, cell_direction_t cell_direction,
crypt_path_t **layer_hint, char *recognized);
#ifdef RELAY_PRIVATE
STATIC int connected_cell_parse(const relay_header_t *rh, const cell_t *cell,
tor_addr_t *addr_out, int *ttl_out);
#endif
#endif