/********************** Directory HS cache ******************/
-/* Directory descriptor cache. Map indexed by blinded key. */
+/** Directory descriptor cache. Map indexed by blinded key. */
static digest256map_t *hs_cache_v3_dir;
-/* Remove a given descriptor from our cache. */
+/** Remove a given descriptor from our cache. */
static void
remove_v3_desc_as_dir(const hs_cache_dir_descriptor_t *desc)
{
digest256map_remove(hs_cache_v3_dir, desc->key);
}
-/* Store a given descriptor in our cache. */
+/** Store a given descriptor in our cache. */
static void
store_v3_desc_as_dir(hs_cache_dir_descriptor_t *desc)
{
digest256map_set(hs_cache_v3_dir, desc->key, desc);
}
-/* Query our cache and return the entry or NULL if not found. */
+/** Query our cache and return the entry or NULL if not found. */
static hs_cache_dir_descriptor_t *
lookup_v3_desc_as_dir(const uint8_t *key)
{
#define cache_dir_desc_free(val) \
FREE_AND_NULL(hs_cache_dir_descriptor_t, cache_dir_desc_free_, (val))
-/* Free a directory descriptor object. */
+/** Free a directory descriptor object. */
static void
cache_dir_desc_free_(hs_cache_dir_descriptor_t *desc)
{
tor_free(desc);
}
-/* Helper function: Use by the free all function using the digest256map
+/** Helper function: Use by the free all function using the digest256map
* interface to cache entries. */
static void
cache_dir_desc_free_void(void *ptr)
cache_dir_desc_free_(ptr);
}
-/* Create a new directory cache descriptor object from a encoded descriptor.
+/** Create a new directory cache descriptor object from a encoded descriptor.
* On success, return the heap-allocated cache object, otherwise return NULL if
* we can't decode the descriptor. */
static hs_cache_dir_descriptor_t *
return NULL;
}
-/* Return the size of a cache entry in bytes. */
+/** Return the size of a cache entry in bytes. */
static size_t
cache_get_dir_entry_size(const hs_cache_dir_descriptor_t *entry)
{
+ strlen(entry->encoded_desc));
}
-/* Try to store a valid version 3 descriptor in the directory cache. Return 0
+/** Try to store a valid version 3 descriptor in the directory cache. Return 0
* on success else a negative value is returned indicating that we have a
* newer version in our cache. On error, caller is responsible to free the
* given descriptor desc. */
return -1;
}
-/* Using the query which is the base64 encoded blinded key of a version 3
+/** Using the query which is the base64 encoded blinded key of a version 3
* descriptor, lookup in our directory cache the entry. If found, 1 is
* returned and desc_out is populated with a newly allocated string being the
* encoded descriptor. If not found, 0 is returned and desc_out is untouched.
return -1;
}
-/* Clean the v3 cache by removing any entry that has expired using the
+/** Clean the v3 cache by removing any entry that has expired using the
* <b>global_cutoff</b> value. If <b>global_cutoff</b> is 0, the cleaning
* process will use the lifetime found in the plaintext data section. Return
* the number of bytes cleaned. */
return bytes_removed;
}
-/* Given an encoded descriptor, store it in the directory cache depending on
+/** Given an encoded descriptor, store it in the directory cache depending on
* which version it is. Return a negative value on error. On success, 0 is
* returned. */
int
return -1;
}
-/* Using the query, lookup in our directory cache the entry. If found, 1 is
+/** Using the query, lookup in our directory cache the entry. If found, 1 is
* returned and desc_out is populated with a newly allocated string being
* the encoded descriptor. If not found, 0 is returned and desc_out is
* untouched. On error, a negative value is returned and desc_out is
return found;
}
-/* Clean all directory caches using the current time now. */
+/** Clean all directory caches using the current time now. */
void
hs_cache_clean_as_dir(time_t now)
{
/********************** Client-side HS cache ******************/
-/* Client-side HS descriptor cache. Map indexed by service identity key. */
+/** Client-side HS descriptor cache. Map indexed by service identity key. */
static digest256map_t *hs_cache_v3_client;
-/* Client-side introduction point state cache. Map indexed by service public
+/** Client-side introduction point state cache. Map indexed by service public
* identity key (onion address). It contains hs_cache_client_intro_state_t
* objects all related to a specific service. */
static digest256map_t *hs_cache_client_intro_state;
-/* Return the size of a client cache entry in bytes. */
+/** Return the size of a client cache entry in bytes. */
static size_t
cache_get_client_entry_size(const hs_cache_client_descriptor_t *entry)
{
strlen(entry->encoded_desc) + hs_desc_obj_size(entry->desc);
}
-/* Remove a given descriptor from our cache. */
+/** Remove a given descriptor from our cache. */
static void
remove_v3_desc_as_client(const hs_cache_client_descriptor_t *desc)
{
rend_cache_decrement_allocation(cache_get_client_entry_size(desc));
}
-/* Store a given descriptor in our cache. */
+/** Store a given descriptor in our cache. */
static void
store_v3_desc_as_client(hs_cache_client_descriptor_t *desc)
{
rend_cache_increment_allocation(cache_get_client_entry_size(desc));
}
-/* Query our cache and return the entry or NULL if not found or if expired. */
+/** Query our cache and return the entry or NULL if not found or if expired. */
STATIC hs_cache_client_descriptor_t *
lookup_v3_desc_as_client(const uint8_t *key)
{
return cached_desc;
}
-/* Parse the encoded descriptor in <b>desc_str</b> using
+/** Parse the encoded descriptor in <b>desc_str</b> using
* <b>service_identity_pk<b> to decrypt it first.
*
* If everything goes well, allocate and return a new
cache_client_desc_free(desc);
}
-/* Return a newly allocated and initialized hs_cache_intro_state_t object. */
+/** Return a newly allocated and initialized hs_cache_intro_state_t object. */
static hs_cache_intro_state_t *
cache_intro_state_new(void)
{
#define cache_intro_state_free(val) \
FREE_AND_NULL(hs_cache_intro_state_t, cache_intro_state_free_, (val))
-/* Free an hs_cache_intro_state_t object. */
+/** Free an hs_cache_intro_state_t object. */
static void
cache_intro_state_free_(hs_cache_intro_state_t *state)
{
tor_free(state);
}
-/* Helper function: used by the free all function. */
+/** Helper function: used by the free all function. */
static void
cache_intro_state_free_void(void *state)
{
cache_intro_state_free_(state);
}
-/* Return a newly allocated and initialized hs_cache_client_intro_state_t
+/** Return a newly allocated and initialized hs_cache_client_intro_state_t
* object. */
static hs_cache_client_intro_state_t *
cache_client_intro_state_new(void)
FREE_AND_NULL(hs_cache_client_intro_state_t, \
cache_client_intro_state_free_, (val))
-/* Free a cache_client_intro_state object. */
+/** Free a cache_client_intro_state object. */
static void
cache_client_intro_state_free_(hs_cache_client_intro_state_t *cache)
{
tor_free(cache);
}
-/* Helper function: used by the free all function. */
+/** Helper function: used by the free all function. */
static void
cache_client_intro_state_free_void(void *entry)
{
cache_client_intro_state_free_(entry);
}
-/* For the given service identity key service_pk and an introduction
+/** For the given service identity key service_pk and an introduction
* authentication key auth_key, lookup the intro state object. Return 1 if
* found and put it in entry if not NULL. Return 0 if not found and entry is
* untouched. */
return 0;
}
-/* Note the given failure in state. */
+/** Note the given failure in state. */
static void
cache_client_intro_state_note(hs_cache_intro_state_t *state,
rend_intro_point_failure_t failure)
}
}
-/* For the given service identity key service_pk and an introduction
+/** For the given service identity key service_pk and an introduction
* authentication key auth_key, add an entry in the client intro state cache
* If no entry exists for the service, it will create one. If state is non
* NULL, it will point to the new intro state entry. */
}
}
-/* Remove every intro point state entry from cache that has been created
+/** Remove every intro point state entry from cache that has been created
* before or at the cutoff. */
static void
cache_client_intro_state_clean(time_t cutoff,
} DIGEST256MAP_FOREACH_END;
}
-/* Return true iff no intro points are in this cache. */
+/** Return true iff no intro points are in this cache. */
static int
cache_client_intro_state_is_empty(const hs_cache_client_intro_state_t *cache)
{
return 0;
}
-/* Return true iff the cached client descriptor at <b>cached_desc</b has
+/** Return true iff the cached client descriptor at <b>cached_desc</b has
* expired. */
static int
cached_client_descriptor_has_expired(time_t now,
return 0;
}
-/* clean the client cache using now as the current time. Return the total size
+/** clean the client cache using now as the current time. Return the total size
* of removed bytes from the cache. */
static size_t
cache_clean_v3_as_client(time_t now)
return -1;
}
-/* Clean all client caches using the current time now. */
+/** Clean all client caches using the current time now. */
void
hs_cache_clean_as_client(time_t now)
{
cache_clean_v3_as_client(now);
}
-/* Purge the client descriptor cache. */
+/** Purge the client descriptor cache. */
void
hs_cache_purge_as_client(void)
{
log_info(LD_REND, "Hidden service client descriptor cache purged.");
}
-/* For a given service identity public key and an introduction authentication
+/** For a given service identity public key and an introduction authentication
* key, note the given failure in the client intro state cache. */
void
hs_cache_client_intro_state_note(const ed25519_public_key_t *service_pk,
cache_client_intro_state_note(entry, failure);
}
-/* For a given service identity public key and an introduction authentication
+/** For a given service identity public key and an introduction authentication
* key, return true iff it is present in the failure cache. */
const hs_cache_intro_state_t *
hs_cache_client_intro_state_find(const ed25519_public_key_t *service_pk,
return state;
}
-/* Cleanup the client introduction state cache. */
+/** Cleanup the client introduction state cache. */
void
hs_cache_client_intro_state_clean(time_t now)
{
} DIGEST256MAP_FOREACH_END;
}
-/* Purge the client introduction state cache. */
+/** Purge the client introduction state cache. */
void
hs_cache_client_intro_state_purge(void)
{
/**************** Generics *********************************/
-/* Do a round of OOM cleanup on all directory caches. Return the amount of
+/** Do a round of OOM cleanup on all directory caches. Return the amount of
* removed bytes. It is possible that the returned value is lower than
* min_remove_bytes if the caches get emptied out so the caller should be
* aware of this. */
return bytes_removed;
}
-/* Return the maximum size of a v3 HS descriptor. */
+/** Return the maximum size of a v3 HS descriptor. */
unsigned int
hs_cache_get_max_descriptor_size(void)
{
HS_DESC_MAX_LEN, 1, INT32_MAX);
}
-/* Initialize the hidden service cache subsystem. */
+/** Initialize the hidden service cache subsystem. */
void
hs_cache_init(void)
{
hs_cache_client_intro_state = digest256map_new();
}
-/* Cleanup the hidden service cache subsystem. */
+/** Cleanup the hidden service cache subsystem. */
void
hs_cache_free_all(void)
{
struct ed25519_public_key_t;
-/* This is the maximum time an introduction point state object can stay in the
+/** This is the maximum time an introduction point state object can stay in the
* client cache in seconds (2 mins or 120 seconds). */
#define HS_CACHE_CLIENT_INTRO_STATE_MAX_AGE (2 * 60)
-/* Introduction point state. */
+/** Introduction point state. */
typedef struct hs_cache_intro_state_t {
- /* When this entry was created and put in the cache. */
+ /** When this entry was created and put in the cache. */
time_t created_ts;
- /* Did it suffered a generic error? */
+ /** Did it suffered a generic error? */
unsigned int error : 1;
- /* Did it timed out? */
+ /** Did it timed out? */
unsigned int timed_out : 1;
- /* How many times we tried to reached it and it was unreachable. */
+ /** How many times we tried to reached it and it was unreachable. */
uint32_t unreachable_count;
} hs_cache_intro_state_t;
typedef struct hs_cache_client_intro_state_t {
- /* Contains hs_cache_intro_state_t object indexed by introduction point
+ /** Contains hs_cache_intro_state_t object indexed by introduction point
* authentication key. */
digest256map_t *intro_points;
} hs_cache_client_intro_state_t;
-/* Descriptor representation on the directory side which is a subset of
+/** Descriptor representation on the directory side which is a subset of
* information that the HSDir can decode and serve it. */
typedef struct hs_cache_dir_descriptor_t {
- /* 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;
/** 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;
projects / thirdparty / tor.git / commitdiff
