src/core/crypto/relay_crypto.h

   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) 2007-2021, The Tor Project, Inc. */
   5 /* See LICENSE for licensing information */
   6
   7 /**
   8  * \file relay.h
   9  * \brief Header file for relay.c.
  10  **/
  11
  12 #ifndef TOR_RELAY_CRYPTO_H
  13 #define TOR_RELAY_CRYPTO_H
  14
  15 int relay_crypto_init(relay_crypto_t *crypto,
  16                       const char *key_data, size_t key_data_len,
  17                       int reverse, int is_hs_v3);
  18
  19 int relay_decrypt_cell(circuit_t *circ, cell_t *cell,
  20                        cell_direction_t cell_direction,
  21                        crypt_path_t **layer_hint, char *recognized);
  22 void relay_encrypt_cell_outbound(cell_t *cell, origin_circuit_t *or_circ,
  23                             crypt_path_t *layer_hint);
  24 void relay_encrypt_cell_inbound(cell_t *cell, or_circuit_t *or_circ);
  25
  26 void relay_crypto_clear(relay_crypto_t *crypto);
  27
  28 void relay_crypto_assert_ok(const relay_crypto_t *crypto);
  29
  30 uint8_t *relay_crypto_get_sendme_digest(relay_crypto_t *crypto);
  31
  32 void relay_crypto_record_sendme_digest(relay_crypto_t *crypto,
  33                                        bool is_foward_digest);
  34
  35 void
  36 relay_crypt_one_payload(crypto_cipher_t *cipher, uint8_t *in);
  37
  38 void
  39 relay_set_digest(crypto_digest_t *digest, cell_t *cell);
  40
  41 #endif /* !defined(TOR_RELAY_CRYPTO_H) */
  42