src/or/channeltls.h

   1 /* * Copyright (c) 2012-2017, The Tor Project, Inc. */
   2 /* See LICENSE for licensing information */
   3
   4 /**
   5  * \file channeltls.h
   6  * \brief Header file for channeltls.c
   7  **/
   8
   9 #ifndef TOR_CHANNELTLS_H
  10 #define TOR_CHANNELTLS_H
  11
  12 #include "or.h"
  13 #include "channel.h"
  14
  15 #define BASE_CHAN_TO_TLS(c) (channel_tls_from_base((c)))
  16 #define TLS_CHAN_TO_BASE(c) (channel_tls_to_base((c)))
  17
  18 #define TLS_CHAN_MAGIC 0x8a192427U
  19
  20 #ifdef TOR_CHANNEL_INTERNAL_
  21
  22 struct channel_tls_s {
  23   /* Base channel_t struct */
  24   channel_t base_;
  25   /* or_connection_t pointer */
  26   or_connection_t *conn;
  27 };
  28
  29 #endif /* defined(TOR_CHANNEL_INTERNAL_) */
  30
  31 channel_t * channel_tls_connect(const tor_addr_t *addr, uint16_t port,
  32                                 const char *id_digest,
  33                                 const ed25519_public_key_t *ed_id);
  34 channel_listener_t * channel_tls_get_listener(void);
  35 channel_listener_t * channel_tls_start_listener(void);
  36 channel_t * channel_tls_handle_incoming(or_connection_t *orconn);
  37
  38 /* Casts */
  39
  40 channel_t * channel_tls_to_base(channel_tls_t *tlschan);
  41 channel_tls_t * channel_tls_from_base(channel_t *chan);
  42
  43 /* Things for connection_or.c to call back into */
  44 void channel_tls_handle_cell(cell_t *cell, or_connection_t *conn);
  45 void channel_tls_handle_state_change_on_orconn(channel_tls_t *chan,
  46                                                or_connection_t *conn,
  47                                                uint8_t old_state,
  48                                                uint8_t state);
  49 void channel_tls_handle_var_cell(var_cell_t *var_cell,
  50                                  or_connection_t *conn);
  51 void channel_tls_update_marks(or_connection_t *conn);
  52
  53 /* Cleanup at shutdown */
  54 void channel_tls_free_all(void);
  55
  56 extern uint64_t stats_n_authorize_cells_processed;
  57 extern uint64_t stats_n_authenticate_cells_processed;
  58 extern uint64_t stats_n_versions_cells_processed;
  59 extern uint64_t stats_n_netinfo_cells_processed;
  60 extern uint64_t stats_n_vpadding_cells_processed;
  61 extern uint64_t stats_n_certs_cells_processed;
  62 extern uint64_t stats_n_auth_challenge_cells_processed;
  63
  64 #ifdef CHANNELTLS_PRIVATE
  65 STATIC void channel_tls_process_certs_cell(var_cell_t *cell,
  66                                            channel_tls_t *tlschan);
  67 STATIC void channel_tls_process_auth_challenge_cell(var_cell_t *cell,
  68                                                     channel_tls_t *tlschan);
  69 STATIC void channel_tls_common_init(channel_tls_t *tlschan);
  70 STATIC void channel_tls_process_authenticate_cell(var_cell_t *cell,
  71                                                   channel_tls_t *tlschan);
  72 #endif /* defined(CHANNELTLS_PRIVATE) */
  73
  74 #endif /* !defined(TOR_CHANNELTLS_H) */
  75