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First draft implementation of random-access cache

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(refs #25)
This commit is contained in:
Viktor Krikun
2011-11-25 19:13:16 +00:00
committed by Travis Cross
parent be03cdc27a
commit e8a376a87f
5 changed files with 326 additions and 50 deletions
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include/zrtp_iface_cache.h
+6 -4
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@@ -34,8 +34,8 @@ extern "C"
*/
typedef uint8_t zrtp_cache_id_t[24];
#define ZRTP_MITMCACHE_ELEM_LENGTH (sizeof(zrtp_cache_id_t) + sizeof(zrtp_string64_t))
#define ZRTP_CACHE_ELEM_LENGTH (sizeof(zrtp_cache_elem_t) - sizeof(mlist_t))
#define ZRTP_MITMCACHE_ELEM_LENGTH ( sizeof(zrtp_cache_id_t) + sizeof(zrtp_string64_t) )
#define ZRTP_CACHE_ELEM_LENGTH ( sizeof(zrtp_cache_elem_t) - sizeof(mlist_t) - (sizeof(uint32_t)*2) )
#define ZFONE_CACHE_NAME_LENGTH 256
/**
@@ -51,10 +51,12 @@ typedef struct zrtp_cache_elem
uint32_t verified; /** Verified flag for the cache value */
uint32_t lastused_at; /** Last usage time-stamp in seconds */
uint32_t ttl; /** Cache TTL since lastused_at in seconds */
uint32_t secure_since; /** Secure since date in seconds. Utility field. Doen't required by libzrtp. */
uint32_t secure_since; /** Secure since date in seconds. Utility field. Don't required by libzrtp. */
char name[ZFONE_CACHE_NAME_LENGTH]; /** name of the user associated with this cache entry */
uint32_t name_length; /** cache name lengths */
uint32_t presh_counter; /** number of Preshared streams made since last DH echange */
uint32_t presh_counter; /** number of Preshared streams made since last DH exchange */
uint32_t _index; /** cache element index in the cache file */
uint32_t _is_dirty; /** dirty flag means the entry has unsaved changes */
mlist_t _mlist;
} zrtp_cache_elem_t;
include/zrtp_types.h
+1
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@@ -359,6 +359,7 @@ struct zrtp_global_t
/** RNG unit initialization flag. */
uint8_t rand_initialized;
/** Full path to ZRTP cache file. */
zrtp_string256_t def_cache_path;
/** This object is used to protect the shared RNG hash zrtp#rand_ctx */