Move cache objects and functions to rendcache.{c|h}

Every functions and objects that are used for hidden service descriptor
caches are moved to rendcache.{c|h}.

This commit does NOT change anything, just moving code around.

Fixes #16399

Signed-off-by: David Goulet <dgoulet@ev0ke.net>

1 files changed, 33 insertions, 0 deletions

diff --git a/src/or/rendcache.h b/src/or/rendcache.h
index 1b78436c94..f34f599e63 100644
--- a/src/or/rendcache.h
+++ b/src/or/rendcache.h
@@ -11,6 +11,17 @@
 
 #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> */
@@ -20,4 +31,26 @@ typedef struct rend_cache_entry_t {
   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 */