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hs_cache.[ch]: repair doxygen comments.
This commit is contained in:
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1b66668e26
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17b88241db
@ -29,10 +29,10 @@ static int cached_client_descriptor_has_expired(time_t now,
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/********************** Directory HS cache ******************/
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/* Directory descriptor cache. Map indexed by blinded key. */
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/** Directory descriptor cache. Map indexed by blinded key. */
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static digest256map_t *hs_cache_v3_dir;
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/* Remove a given descriptor from our cache. */
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/** Remove a given descriptor from our cache. */
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static void
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remove_v3_desc_as_dir(const hs_cache_dir_descriptor_t *desc)
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{
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@ -40,7 +40,7 @@ remove_v3_desc_as_dir(const hs_cache_dir_descriptor_t *desc)
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digest256map_remove(hs_cache_v3_dir, desc->key);
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}
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/* Store a given descriptor in our cache. */
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/** Store a given descriptor in our cache. */
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static void
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store_v3_desc_as_dir(hs_cache_dir_descriptor_t *desc)
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{
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@ -48,7 +48,7 @@ store_v3_desc_as_dir(hs_cache_dir_descriptor_t *desc)
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digest256map_set(hs_cache_v3_dir, desc->key, desc);
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}
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/* Query our cache and return the entry or NULL if not found. */
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/** Query our cache and return the entry or NULL if not found. */
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static hs_cache_dir_descriptor_t *
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lookup_v3_desc_as_dir(const uint8_t *key)
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{
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@ -59,7 +59,7 @@ lookup_v3_desc_as_dir(const uint8_t *key)
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#define cache_dir_desc_free(val) \
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FREE_AND_NULL(hs_cache_dir_descriptor_t, cache_dir_desc_free_, (val))
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/* Free a directory descriptor object. */
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/** Free a directory descriptor object. */
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static void
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cache_dir_desc_free_(hs_cache_dir_descriptor_t *desc)
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{
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@ -71,7 +71,7 @@ cache_dir_desc_free_(hs_cache_dir_descriptor_t *desc)
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tor_free(desc);
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}
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/* Helper function: Use by the free all function using the digest256map
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/** Helper function: Use by the free all function using the digest256map
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* interface to cache entries. */
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static void
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cache_dir_desc_free_void(void *ptr)
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@ -79,7 +79,7 @@ cache_dir_desc_free_void(void *ptr)
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cache_dir_desc_free_(ptr);
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}
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/* Create a new directory cache descriptor object from a encoded descriptor.
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/** Create a new directory cache descriptor object from a encoded descriptor.
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* On success, return the heap-allocated cache object, otherwise return NULL if
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* we can't decode the descriptor. */
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static hs_cache_dir_descriptor_t *
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@ -109,7 +109,7 @@ cache_dir_desc_new(const char *desc)
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return NULL;
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}
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/* Return the size of a cache entry in bytes. */
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/** Return the size of a cache entry in bytes. */
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static size_t
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cache_get_dir_entry_size(const hs_cache_dir_descriptor_t *entry)
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{
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@ -117,7 +117,7 @@ cache_get_dir_entry_size(const hs_cache_dir_descriptor_t *entry)
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+ strlen(entry->encoded_desc));
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}
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/* Try to store a valid version 3 descriptor in the directory cache. Return 0
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/** Try to store a valid version 3 descriptor in the directory cache. Return 0
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* on success else a negative value is returned indicating that we have a
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* newer version in our cache. On error, caller is responsible to free the
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* given descriptor desc. */
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@ -167,7 +167,7 @@ cache_store_v3_as_dir(hs_cache_dir_descriptor_t *desc)
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return -1;
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}
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/* Using the query which is the base64 encoded blinded key of a version 3
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/** Using the query which is the base64 encoded blinded key of a version 3
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* descriptor, lookup in our directory cache the entry. If found, 1 is
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* returned and desc_out is populated with a newly allocated string being the
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* encoded descriptor. If not found, 0 is returned and desc_out is untouched.
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@ -202,7 +202,7 @@ cache_lookup_v3_as_dir(const char *query, const char **desc_out)
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return -1;
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}
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/* Clean the v3 cache by removing any entry that has expired using the
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/** Clean the v3 cache by removing any entry that has expired using the
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* <b>global_cutoff</b> value. If <b>global_cutoff</b> is 0, the cleaning
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* process will use the lifetime found in the plaintext data section. Return
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* the number of bytes cleaned. */
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@ -252,7 +252,7 @@ cache_clean_v3_as_dir(time_t now, time_t global_cutoff)
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return bytes_removed;
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}
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/* Given an encoded descriptor, store it in the directory cache depending on
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/** Given an encoded descriptor, store it in the directory cache depending on
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* which version it is. Return a negative value on error. On success, 0 is
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* returned. */
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int
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@ -287,7 +287,7 @@ hs_cache_store_as_dir(const char *desc)
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return -1;
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}
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/* Using the query, lookup in our directory cache the entry. If found, 1 is
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/** Using the query, lookup in our directory cache the entry. If found, 1 is
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* returned and desc_out is populated with a newly allocated string being
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* the encoded descriptor. If not found, 0 is returned and desc_out is
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* untouched. On error, a negative value is returned and desc_out is
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@ -312,7 +312,7 @@ hs_cache_lookup_as_dir(uint32_t version, const char *query,
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return found;
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}
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/* Clean all directory caches using the current time now. */
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/** Clean all directory caches using the current time now. */
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void
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hs_cache_clean_as_dir(time_t now)
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{
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@ -329,15 +329,15 @@ hs_cache_clean_as_dir(time_t now)
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/********************** Client-side HS cache ******************/
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/* Client-side HS descriptor cache. Map indexed by service identity key. */
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/** Client-side HS descriptor cache. Map indexed by service identity key. */
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static digest256map_t *hs_cache_v3_client;
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/* Client-side introduction point state cache. Map indexed by service public
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/** Client-side introduction point state cache. Map indexed by service public
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* identity key (onion address). It contains hs_cache_client_intro_state_t
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* objects all related to a specific service. */
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static digest256map_t *hs_cache_client_intro_state;
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/* Return the size of a client cache entry in bytes. */
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/** Return the size of a client cache entry in bytes. */
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static size_t
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cache_get_client_entry_size(const hs_cache_client_descriptor_t *entry)
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{
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@ -345,7 +345,7 @@ cache_get_client_entry_size(const hs_cache_client_descriptor_t *entry)
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strlen(entry->encoded_desc) + hs_desc_obj_size(entry->desc);
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}
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/* Remove a given descriptor from our cache. */
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/** Remove a given descriptor from our cache. */
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static void
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remove_v3_desc_as_client(const hs_cache_client_descriptor_t *desc)
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{
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@ -355,7 +355,7 @@ remove_v3_desc_as_client(const hs_cache_client_descriptor_t *desc)
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rend_cache_decrement_allocation(cache_get_client_entry_size(desc));
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}
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/* Store a given descriptor in our cache. */
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/** Store a given descriptor in our cache. */
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static void
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store_v3_desc_as_client(hs_cache_client_descriptor_t *desc)
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{
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@ -365,7 +365,7 @@ store_v3_desc_as_client(hs_cache_client_descriptor_t *desc)
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rend_cache_increment_allocation(cache_get_client_entry_size(desc));
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}
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/* Query our cache and return the entry or NULL if not found or if expired. */
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/** Query our cache and return the entry or NULL if not found or if expired. */
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STATIC hs_cache_client_descriptor_t *
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lookup_v3_desc_as_client(const uint8_t *key)
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{
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@ -388,7 +388,7 @@ lookup_v3_desc_as_client(const uint8_t *key)
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return cached_desc;
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}
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/* Parse the encoded descriptor in <b>desc_str</b> using
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/** Parse the encoded descriptor in <b>desc_str</b> using
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* <b>service_identity_pk<b> to decrypt it first.
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*
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* If everything goes well, allocate and return a new
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@ -448,7 +448,7 @@ cache_client_desc_free_void(void *ptr)
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cache_client_desc_free(desc);
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}
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/* Return a newly allocated and initialized hs_cache_intro_state_t object. */
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/** Return a newly allocated and initialized hs_cache_intro_state_t object. */
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static hs_cache_intro_state_t *
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cache_intro_state_new(void)
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{
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@ -460,21 +460,21 @@ cache_intro_state_new(void)
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#define cache_intro_state_free(val) \
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FREE_AND_NULL(hs_cache_intro_state_t, cache_intro_state_free_, (val))
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/* Free an hs_cache_intro_state_t object. */
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/** Free an hs_cache_intro_state_t object. */
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static void
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cache_intro_state_free_(hs_cache_intro_state_t *state)
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{
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tor_free(state);
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}
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/* Helper function: used by the free all function. */
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/** Helper function: used by the free all function. */
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static void
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cache_intro_state_free_void(void *state)
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{
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cache_intro_state_free_(state);
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}
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/* Return a newly allocated and initialized hs_cache_client_intro_state_t
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/** Return a newly allocated and initialized hs_cache_client_intro_state_t
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* object. */
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static hs_cache_client_intro_state_t *
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cache_client_intro_state_new(void)
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@ -488,7 +488,7 @@ cache_client_intro_state_new(void)
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FREE_AND_NULL(hs_cache_client_intro_state_t, \
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cache_client_intro_state_free_, (val))
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/* Free a cache_client_intro_state object. */
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/** Free a cache_client_intro_state object. */
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static void
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cache_client_intro_state_free_(hs_cache_client_intro_state_t *cache)
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{
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@ -499,14 +499,14 @@ cache_client_intro_state_free_(hs_cache_client_intro_state_t *cache)
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tor_free(cache);
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}
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/* Helper function: used by the free all function. */
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/** Helper function: used by the free all function. */
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static void
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cache_client_intro_state_free_void(void *entry)
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{
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cache_client_intro_state_free_(entry);
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}
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/* For the given service identity key service_pk and an introduction
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/** For the given service identity key service_pk and an introduction
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* authentication key auth_key, lookup the intro state object. Return 1 if
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* found and put it in entry if not NULL. Return 0 if not found and entry is
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* untouched. */
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@ -541,7 +541,7 @@ cache_client_intro_state_lookup(const ed25519_public_key_t *service_pk,
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return 0;
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}
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/* Note the given failure in state. */
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/** Note the given failure in state. */
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static void
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cache_client_intro_state_note(hs_cache_intro_state_t *state,
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rend_intro_point_failure_t failure)
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@ -563,7 +563,7 @@ cache_client_intro_state_note(hs_cache_intro_state_t *state,
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}
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}
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/* For the given service identity key service_pk and an introduction
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/** For the given service identity key service_pk and an introduction
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* authentication key auth_key, add an entry in the client intro state cache
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* If no entry exists for the service, it will create one. If state is non
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* NULL, it will point to the new intro state entry. */
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@ -597,7 +597,7 @@ cache_client_intro_state_add(const ed25519_public_key_t *service_pk,
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}
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}
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/* Remove every intro point state entry from cache that has been created
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/** Remove every intro point state entry from cache that has been created
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* before or at the cutoff. */
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static void
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cache_client_intro_state_clean(time_t cutoff,
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@ -614,7 +614,7 @@ cache_client_intro_state_clean(time_t cutoff,
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} DIGEST256MAP_FOREACH_END;
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}
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/* Return true iff no intro points are in this cache. */
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/** Return true iff no intro points are in this cache. */
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static int
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cache_client_intro_state_is_empty(const hs_cache_client_intro_state_t *cache)
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{
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@ -664,7 +664,7 @@ cache_store_as_client(hs_cache_client_descriptor_t *client_desc)
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return 0;
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}
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/* Return true iff the cached client descriptor at <b>cached_desc</b has
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/** Return true iff the cached client descriptor at <b>cached_desc</b has
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* expired. */
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static int
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cached_client_descriptor_has_expired(time_t now,
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@ -687,7 +687,7 @@ cached_client_descriptor_has_expired(time_t now,
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return 0;
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}
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/* clean the client cache using now as the current time. Return the total size
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/** clean the client cache using now as the current time. Return the total size
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* of removed bytes from the cache. */
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static size_t
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cache_clean_v3_as_client(time_t now)
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@ -800,7 +800,7 @@ hs_cache_store_as_client(const char *desc_str,
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return -1;
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}
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/* Clean all client caches using the current time now. */
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/** Clean all client caches using the current time now. */
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void
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hs_cache_clean_as_client(time_t now)
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{
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@ -811,7 +811,7 @@ hs_cache_clean_as_client(time_t now)
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cache_clean_v3_as_client(now);
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}
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/* Purge the client descriptor cache. */
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/** Purge the client descriptor cache. */
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void
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hs_cache_purge_as_client(void)
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{
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@ -828,7 +828,7 @@ hs_cache_purge_as_client(void)
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log_info(LD_REND, "Hidden service client descriptor cache purged.");
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}
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/* For a given service identity public key and an introduction authentication
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/** For a given service identity public key and an introduction authentication
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* key, note the given failure in the client intro state cache. */
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void
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hs_cache_client_intro_state_note(const ed25519_public_key_t *service_pk,
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@ -850,7 +850,7 @@ hs_cache_client_intro_state_note(const ed25519_public_key_t *service_pk,
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cache_client_intro_state_note(entry, failure);
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}
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/* For a given service identity public key and an introduction authentication
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/** For a given service identity public key and an introduction authentication
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* key, return true iff it is present in the failure cache. */
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const hs_cache_intro_state_t *
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hs_cache_client_intro_state_find(const ed25519_public_key_t *service_pk,
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@ -861,7 +861,7 @@ hs_cache_client_intro_state_find(const ed25519_public_key_t *service_pk,
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return state;
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}
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/* Cleanup the client introduction state cache. */
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/** Cleanup the client introduction state cache. */
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void
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hs_cache_client_intro_state_clean(time_t now)
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{
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@ -881,7 +881,7 @@ hs_cache_client_intro_state_clean(time_t now)
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} DIGEST256MAP_FOREACH_END;
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}
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/* Purge the client introduction state cache. */
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/** Purge the client introduction state cache. */
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void
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hs_cache_client_intro_state_purge(void)
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{
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@ -897,7 +897,7 @@ hs_cache_client_intro_state_purge(void)
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/**************** Generics *********************************/
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/* Do a round of OOM cleanup on all directory caches. Return the amount of
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/** Do a round of OOM cleanup on all directory caches. Return the amount of
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* removed bytes. It is possible that the returned value is lower than
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* min_remove_bytes if the caches get emptied out so the caller should be
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* aware of this. */
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@ -951,7 +951,7 @@ hs_cache_handle_oom(time_t now, size_t min_remove_bytes)
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return bytes_removed;
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}
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/* Return the maximum size of a v3 HS descriptor. */
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/** Return the maximum size of a v3 HS descriptor. */
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unsigned int
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hs_cache_get_max_descriptor_size(void)
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{
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@ -960,7 +960,7 @@ hs_cache_get_max_descriptor_size(void)
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HS_DESC_MAX_LEN, 1, INT32_MAX);
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}
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/* Initialize the hidden service cache subsystem. */
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/** Initialize the hidden service cache subsystem. */
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void
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hs_cache_init(void)
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{
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@ -975,7 +975,7 @@ hs_cache_init(void)
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hs_cache_client_intro_state = digest256map_new();
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}
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/* Cleanup the hidden service cache subsystem. */
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/** Cleanup the hidden service cache subsystem. */
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void
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hs_cache_free_all(void)
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{
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struct ed25519_public_key_t;
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/* This is the maximum time an introduction point state object can stay in the
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/** This is the maximum time an introduction point state object can stay in the
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* client cache in seconds (2 mins or 120 seconds). */
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#define HS_CACHE_CLIENT_INTRO_STATE_MAX_AGE (2 * 60)
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/* Introduction point state. */
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/** Introduction point state. */
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typedef struct hs_cache_intro_state_t {
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/* When this entry was created and put in the cache. */
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/** When this entry was created and put in the cache. */
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time_t created_ts;
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/* Did it suffered a generic error? */
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/** Did it suffered a generic error? */
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unsigned int error : 1;
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/* Did it timed out? */
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/** Did it timed out? */
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unsigned int timed_out : 1;
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/* How many times we tried to reached it and it was unreachable. */
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/** How many times we tried to reached it and it was unreachable. */
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uint32_t unreachable_count;
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} hs_cache_intro_state_t;
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typedef struct hs_cache_client_intro_state_t {
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/* Contains hs_cache_intro_state_t object indexed by introduction point
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/** Contains hs_cache_intro_state_t object indexed by introduction point
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* authentication key. */
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digest256map_t *intro_points;
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} hs_cache_client_intro_state_t;
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/* Descriptor representation on the directory side which is a subset of
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/** Descriptor representation on the directory side which is a subset of
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* information that the HSDir can decode and serve it. */
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typedef struct hs_cache_dir_descriptor_t {
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||||
/* This object is indexed using the blinded pubkey located in the plaintext
|
||||
/** This object is indexed using the blinded pubkey located in the plaintext
|
||||
* data which is populated only once the descriptor has been successfully
|
||||
* decoded and validated. This simply points to that pubkey. */
|
||||
const uint8_t *key;
|
||||
|
||||
/* When does this entry has been created. Used to expire entries. */
|
||||
/** When does this entry has been created. Used to expire entries. */
|
||||
time_t created_ts;
|
||||
|
||||
/* Descriptor plaintext information. Obviously, we can't decrypt the
|
||||
/** Descriptor plaintext information. Obviously, we can't decrypt the
|
||||
* encrypted part of the descriptor. */
|
||||
hs_desc_plaintext_data_t *plaintext_data;
|
||||
|
||||
/* Encoded descriptor which is basically in text form. It's a NUL terminated
|
||||
/** Encoded descriptor which is basically in text form. It's a NUL terminated
|
||||
* string thus safe to strlen(). */
|
||||
char *encoded_desc;
|
||||
} hs_cache_dir_descriptor_t;
|
||||
@ -104,19 +104,19 @@ void hs_cache_client_intro_state_purge(void);
|
||||
|
||||
/** Represents a locally cached HS descriptor on a hidden service client. */
|
||||
typedef struct hs_cache_client_descriptor_t {
|
||||
/* This object is indexed using the service identity public key */
|
||||
/** This object is indexed using the service identity public key */
|
||||
struct ed25519_public_key_t key;
|
||||
|
||||
/* When will this entry expire? We expire cached client descriptors in the
|
||||
/** When will this entry expire? We expire cached client descriptors in the
|
||||
* start of the next time period, since that's when clients need to start
|
||||
* using the next blinded key of the service. */
|
||||
time_t expiration_ts;
|
||||
|
||||
/* The cached descriptor, this object is the owner. It can't be NULL. A
|
||||
/** The cached descriptor, this object is the owner. It can't be NULL. A
|
||||
* cache object without a valid descriptor is not possible. */
|
||||
hs_descriptor_t *desc;
|
||||
|
||||
/* Encoded descriptor in string form. Can't be NULL. */
|
||||
/** Encoded descriptor in string form. Can't be NULL. */
|
||||
char *encoded_desc;
|
||||
} hs_cache_client_descriptor_t;
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user