tor/src/or/relay_crypto.h
Nick Mathewson 5ecad6c95d Extract the cryptographic parts of crypt_path_t and or_circuit_t.
Additionally, this change extracts the functions that created and
freed these elements.

These structures had common "forward&reverse stream&digest"
elements, but they were initialized and freed through cpath objects,
and different parts of the code depended on them.  Now all that code
is extacted, and kept in relay_crypto.c
2018-03-17 10:59:15 -04:00

32 lines
1.0 KiB
C

/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2017, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file relay.h
* \brief Header file for relay.c.
**/
#ifndef TOR_RELAY_CRYPTO_H
#define TOR_RELAY_CRYPTO_H
int relay_crypto_init(relay_crypto_t *crypto,
const char *key_data, size_t key_data_len,
int reverse, int is_hs_v3);
int relay_decrypt_cell(circuit_t *circ, cell_t *cell,
cell_direction_t cell_direction,
crypt_path_t **layer_hint, char *recognized);
void relay_encrypt_cell_outbound(cell_t *cell, origin_circuit_t *or_circ,
crypt_path_t *layer_hint);
void relay_encrypt_cell_inbound(cell_t *cell, or_circuit_t *or_circ);
void relay_crypto_clear(relay_crypto_t *crypto);
void relay_crypto_assert_ok(const relay_crypto_t *crypto);
#endif /* !defined(TOR_RELAY_CRYPTO_H) */