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- /* Copyright (c) 2015, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- /**
- * \file rendcache.h
- * \brief Header file for rendcache.c
- **/
- #ifndef TOR_RENDCACHE_H
- #define TOR_RENDCACHE_H
- #include "or.h"
- /** How old do we let hidden service descriptors get before discarding
- * them as too old? */
- #define REND_CACHE_MAX_AGE (2*24*60*60)
- /** How wrong do we assume our clock may be when checking whether hidden
- * services are too old or too new? */
- #define REND_CACHE_MAX_SKEW (24*60*60)
- /* Do not allow more than this many introduction points in a hidden service
- * descriptor */
- #define MAX_INTRO_POINTS 10
- /** A cached rendezvous descriptor. */
- typedef struct rend_cache_entry_t {
- size_t len; /**< Length of <b>desc</b> */
- time_t last_served; /**< When did we last write this one to somebody?
- * (HSDir only) */
- char *desc; /**< Service descriptor */
- rend_service_descriptor_t *parsed; /**< Parsed value of 'desc' */
- } rend_cache_entry_t;
- void rend_cache_init(void);
- void rend_cache_clean(time_t now);
- void rend_cache_clean_v2_descs_as_dir(time_t now, size_t min_to_remove);
- void rend_cache_purge(void);
- void rend_cache_free_all(void);
- int rend_cache_lookup_entry(const char *query, int version,
- rend_cache_entry_t **entry_out);
- int rend_cache_lookup_v2_desc_as_dir(const char *query, const char **desc);
- /** Return value from rend_cache_store_v2_desc_as_{dir,client}. */
- typedef enum {
- RCS_NOTDIR = -2, /**< We're not a directory */
- RCS_BADDESC = -1, /**< This descriptor is no good. */
- RCS_OKAY = 0 /**< All worked as expected */
- } rend_cache_store_status_t;
- rend_cache_store_status_t rend_cache_store_v2_desc_as_dir(const char *desc);
- rend_cache_store_status_t rend_cache_store_v2_desc_as_client(const char *desc,
- const char *desc_id_base32,
- const rend_data_t *rend_query,
- rend_cache_entry_t **entry);
- size_t rend_cache_get_total_allocation(void);
- #endif /* TOR_RENDCACHE_H */
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