release/src/router/tor/src/or/rendcommon.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) 2007-2013, The Tor Project, Inc. */
   5 /* See LICENSE for licensing information */
   6
   7 /**
   8  * \file rendcommon.h
   9  * \brief Header file for rendcommon.c.
  10  **/
  11
  12 #ifndef TOR_RENDCOMMON_H
  13 #define TOR_RENDCOMMON_H
  14
  15 /** Free all storage associated with <b>data</b> */
  16 static INLINE void
  17 rend_data_free(rend_data_t *data)
  18 {
  19   tor_free(data);
  20 }
  21
  22 int rend_cmp_service_ids(const char *one, const char *two);
  23
  24 void rend_process_relay_cell(circuit_t *circ, const crypt_path_t *layer_hint,
  25                              int command, size_t length,
  26                              const uint8_t *payload);
  27
  28 void rend_service_descriptor_free(rend_service_descriptor_t *desc);
  29 int rend_get_service_id(crypto_pk_t *pk, char *out);
  30 void rend_encoded_v2_service_descriptor_free(
  31                                rend_encoded_v2_service_descriptor_t *desc);
  32 void rend_intro_point_free(rend_intro_point_t *intro);
  33
  34 void rend_cache_init(void);
  35 void rend_cache_clean(time_t now);
  36 void rend_cache_clean_v2_descs_as_dir(time_t now);
  37 void rend_cache_purge(void);
  38 void rend_cache_free_all(void);
  39 int rend_valid_service_id(const char *query);
  40 int rend_cache_lookup_entry(const char *query, int version,
  41                             rend_cache_entry_t **entry_out);
  42 int rend_cache_lookup_v2_desc_as_dir(const char *query, const char **desc);
  43 /** Return value from rend_cache_store_v2_desc_as_{dir,client}. */
  44 typedef enum {
  45   RCS_NOTDIR = -2, /**< We're not a directory */
  46   RCS_BADDESC = -1, /**< This descriptor is no good. */
  47   RCS_OKAY = 0 /**< All worked as expected */
  48 } rend_cache_store_status_t;
  49
  50 rend_cache_store_status_t rend_cache_store_v2_desc_as_dir(const char *desc);
  51 rend_cache_store_status_t rend_cache_store_v2_desc_as_client(const char *desc,
  52                                        const rend_data_t *rend_query);
  53
  54 int rend_encode_v2_descriptors(smartlist_t *descs_out,
  55                                rend_service_descriptor_t *desc, time_t now,
  56                                uint8_t period, rend_auth_type_t auth_type,
  57                                crypto_pk_t *client_key,
  58                                smartlist_t *client_cookies);
  59 int rend_compute_v2_desc_id(char *desc_id_out, const char *service_id,
  60                             const char *descriptor_cookie,
  61                             time_t now, uint8_t replica);
  62 int rend_id_is_in_interval(const char *a, const char *b, const char *c);
  63 void rend_get_descriptor_id_bytes(char *descriptor_id_out,
  64                                   const char *service_id,
  65                                   const char *secret_id_part);
  66
  67 #endif
  68