35#define SANITY_CHECKS 0
40#define LOG_TRAFFIC(kind, ...) GNUNET_log_from (kind, "dht-traffic", \
43#define LOG(kind, ...) GNUNET_log_from (kind, "dht-clients", __VA_ARGS__)
277 if (NULL !=
record->hnode)
280 record->seen_replies_count,
328 "Local client %p disconnects\n",
350 while (NULL != (cqr =
ch->cqr_head))
371 "# GET requests from clients injected",
389 "Initiating GET for %s, replication %u, already have %u replies\n",
491 .data_size =
size -
sizeof (*dht_msg),
492 .type = ntohl (dht_msg->
type),
497 "Handling local PUT of %lu-bytes for query %s of type %u\n",
500 (
unsigned int) bd.
type);
513 "# PUT requests received from clients",
544 "# Local PUT requests not routed",
569 "Datacache provided result for query key %s\n",
607 uint16_t
size = ntohs (
get->header.size);
608 const char *
xquery = (
const char *) &
get[1];
612 "Received GET request for %s from local client %p, xq: %.*s\n",
618 "# GET requests received from clients",
628 cqr->
xquery = (
const void *) &cqr[1];
726 unsigned int hash_count =
727 (
size -
sizeof(*seen))
752 unsigned int hash_count = (
size -
sizeof(*seen))
758 unsigned int old_count;
765 if (NULL == (cqr = fui_ctx.
cqr))
819 "Removing client %p's record for key %s (by unique id)\n",
844 "# GET STOP requests received from clients",
848 "Received GET STOP request for %s from local client %p\n",
913 "CLIENT-RESULT %s\n",
919 "Record type mismatch, not passing request for key %s to local client\n",
922 "# Key match, type mismatches in REPLY to CLIENT",
932 "# Inexact key match, but exact match required",
940 for (
unsigned int i = 0; i <
record->seen_replies_count; i++)
946 "Duplicate reply, not passing request for key %s to local client\n",
949 "# Duplicate REPLIES to CLIENT request dropped",
964 "Evaluation result is %d for key %s for local client's query\n",
975 record->seen_replies_count,
990 "# RESULTS queued for clients",
998#if SUPER_REDUNDANT_CHECK
1022 reply->
key = *query_hash;
1025 void *tgt = &reply[1];
1049 "Sending reply to query %s for client %p\n",
1063 unsigned int get_path_length,
1071#if SANITY_CHECKS > 1
1080#if SANITY_CHECKS > 1
1102 "Forwarding reply for query hash %s with GPL %u and PPL %u to client\n",
1113 "No matching client for reply for query %s\n",
1116 "# REPLIES ignored for CLIENTS (no match)",
1141 size_t slen = strlen (url) + 1;
1146 "Handling request from local client for my HELLO\n");
1171 uint16_t len = ntohs (hdr->
size);
1172 const char *buf = (
const char *) &hdr[1];
1175 if (
'\0' != buf[len -
sizeof (*hdr) - 1])
1196 const char *url = (
const char *) &
msg[1];
1200 "Local client provided HELLO URL %s\n",
1237 r->
get = ntohs (
msg->get);
1239 r->
put = ntohs (
msg->put);
1240 if (0 != ntohs (
msg->filter_key))
1271 ? (0 == ntohs (
msg->filter_key))
1272 : ( (0 != ntohs (
msg->filter_key)) &&
1275 if ( (
ch == r->ch) &&
1276 (ntohl (
msg->
type) == r->type) &&
1277 (r->get ==
msg->get) &&
1278 (r->get_resp ==
msg->get_resp) &&
1279 (r->put ==
msg->put) &&
1319 unsigned int cl_size = 0;
1336 for (
unsigned i = 0; i < cl_size; i++)
1462 void *tgt = &mmsg[1];
1492 unsigned int get_path_length)
1554 void *tgt = &mmsg[1];
1580 uint32_t desired_replication_level)
1632#define GDS_DHT_SERVICE_INIT(name, run) \
1633 GNUNET_SERVICE_MAIN \
1635 GNUNET_SERVICE_OPTION_NONE, \
1637 &client_connect_cb, \
1638 &client_disconnect_cb, \
1640 GNUNET_MQ_hd_var_size (dht_local_put, \
1641 GNUNET_MESSAGE_TYPE_DHT_CLIENT_PUT, \
1642 struct GNUNET_DHT_ClientPutMessage, \
1644 GNUNET_MQ_hd_var_size (dht_local_get, \
1645 GNUNET_MESSAGE_TYPE_DHT_CLIENT_GET, \
1646 struct GNUNET_DHT_ClientGetMessage, \
1648 GNUNET_MQ_hd_fixed_size (dht_local_get_stop, \
1649 GNUNET_MESSAGE_TYPE_DHT_CLIENT_GET_STOP, \
1650 struct GNUNET_DHT_ClientGetStopMessage, \
1652 GNUNET_MQ_hd_fixed_size (dht_local_monitor, \
1653 GNUNET_MESSAGE_TYPE_DHT_MONITOR_START, \
1654 struct GNUNET_DHT_MonitorStartStopMessage, \
1656 GNUNET_MQ_hd_fixed_size (dht_local_monitor_stop, \
1657 GNUNET_MESSAGE_TYPE_DHT_MONITOR_STOP, \
1658 struct GNUNET_DHT_MonitorStartStopMessage, \
1660 GNUNET_MQ_hd_var_size (dht_local_get_result_seen, \
1661 GNUNET_MESSAGE_TYPE_DHT_CLIENT_GET_RESULTS_KNOWN, \
1662 struct GNUNET_DHT_ClientGetResultSeenMessage, \
1664 GNUNET_MQ_hd_fixed_size (dht_local_hello_get, \
1665 GNUNET_MESSAGE_TYPE_DHT_CLIENT_HELLO_GET, \
1666 struct GNUNET_MessageHeader, \
1668 GNUNET_MQ_hd_var_size (dht_local_hello_offer, \
1669 GNUNET_MESSAGE_TYPE_DHT_CLIENT_HELLO_URL, \
1670 struct GNUNET_MessageHeader, \
1672 GNUNET_MQ_handler_end ())
struct GNUNET_GETOPT_CommandLineOption options[]
struct GNUNET_MQ_Handle * mq
struct GNUNET_MessageHeader * msg
struct GNUNET_MQ_Envelope * env
#define DHT_BLOOM_SIZE
Size of the bloom filter the DHT uses to filter peers.
static struct GNUNET_ARM_MonitorHandle * m
Monitor connection with ARM.
static int monitor
Monitor ARM activity.
static unsigned int replication_level
Replication level option to use for publishing.
static struct GNUNET_CADET_Channel * ch
Channel handle.
static void record(void *cls, size_t data_size, const void *data)
Process recorded audio data.
struct GNUNET_HashCode key
The key used in the DHT.
static int get
Get DID Documement for DID Flag.
static struct GNUNET_FS_Handle * ctx
static char * value
Value of the record to add/remove.
static uint32_t type
Type string converted to DNS type value.
static size_t data_size
Number of bytes in data.
struct GNUNET_PeerIdentity GDS_my_identity
Identity of this peer.
struct GNUNET_CRYPTO_EddsaPrivateKey GDS_my_private_key
Our private key.
struct GNUNET_HELLO_Builder * GDS_my_hello
Our HELLO.
static void transmit_request(struct ClientQueryRecord *cqr)
Route the given request via the DHT.
void GDS_CLIENTS_process_get(enum GNUNET_DHT_RouteOption options, enum GNUNET_BLOCK_Type type, uint32_t hop_count, uint32_t desired_replication_level, const struct GNUNET_HashCode *key)
Check if some client is monitoring GET messages and notify them in that case.
static void handle_dht_local_get_stop(void *cls, const struct GNUNET_DHT_ClientGetStopMessage *dht_stop_msg)
Handler for any generic DHT stop messages, calls the appropriate handler depending on message type (i...
void GDS_CLIENTS_process_get_resp(const struct GNUNET_DATACACHE_Block *bd, const struct GNUNET_DHT_PathElement *get_path, unsigned int get_path_length)
Check if some client is monitoring GET RESP messages and notify them in that case.
static struct ClientMonitorRecord * monitor_head
List of active monitoring requests.
static enum GNUNET_GenericReturnValue forward_reply(void *cls, const struct GNUNET_HashCode *query_hash, void *value)
Iterator over hash map entries that send a given reply to each of the matching clients.
static void handle_dht_local_get(void *cls, const struct GNUNET_DHT_ClientGetMessage *get)
Handler for DHT GET messages from the client.
static enum GNUNET_GenericReturnValue find_by_unique_id(void *cls, const struct GNUNET_HashCode *key, void *value)
Function called for each existing DHT record for the given query.
static enum GNUNET_GenericReturnValue remove_by_unique_id(void *cls, const struct GNUNET_HashCode *key, void *value)
Iterator over hash map entries that frees all entries that match the given client and unique ID.
static void response_action(void *cls, struct ClientMonitorRecord *m)
Function called on monitors that match a response.
void GDS_CLIENTS_init(void)
Initialize client subsystem.
static struct GNUNET_CONTAINER_Heap * retry_heap
Heap with all of our client's request, sorted by retry time (earliest on top).
struct GNUNET_STATISTICS_Handle * GDS_stats
Handle for the statistics service.
static struct GNUNET_SCHEDULER_Task * retry_task
Task that re-transmits requests (using retry_heap).
static void handle_dht_local_hello_get(void *cls, const struct GNUNET_MessageHeader *msg)
Handler for HELLO GET message.
static void handle_dht_local_monitor_stop(void *cls, const struct GNUNET_DHT_MonitorStartStopMessage *msg)
Handler for monitor stop messages.
static void handle_dht_local_get_result_seen(void *cls, const struct GNUNET_DHT_ClientGetResultSeenMessage *seen)
Handler for "GET result seen" messages from the client.
static struct GNUNET_CONTAINER_MultiHashMap * forward_map
Hashmap for fast key based lookup, maps keys to struct ClientQueryRecord entries.
static void handle_dht_local_monitor(void *cls, const struct GNUNET_DHT_MonitorStartStopMessage *msg)
Handler for monitor start messages.
void GDS_CLIENTS_done(void)
static void handle_local_result(void *cls, const struct GNUNET_DATACACHE_Block *bd)
Handle a result from local datacache for a GET operation.
struct GNUNET_BLOCK_Context * GDS_block_context
Our handle to the BLOCK library.
struct GNUNET_SERVICE_Handle * GDS_service
Handle for the service.
static void * client_connect_cb(void *cls, struct GNUNET_SERVICE_Client *client, struct GNUNET_MQ_Handle *mq)
Functions with this signature are called whenever a local client is connects to us.
void GDS_CLIENTS_process_put(const struct GNUNET_DATACACHE_Block *bd, uint32_t hop_count, uint32_t desired_replication_level)
Check if some client is monitoring PUT messages and notify them in that case.
static enum GNUNET_GenericReturnValue check_dht_local_hello_offer(void *cls, const struct GNUNET_MessageHeader *hdr)
Process a client HELLO message received from the service.
static enum GNUNET_GenericReturnValue check_dht_local_put(void *cls, const struct GNUNET_DHT_ClientPutMessage *dht_msg)
Check DHT PUT messages from the client.
static void for_matching_monitors(enum GNUNET_BLOCK_Type type, const struct GNUNET_HashCode *key, MonitorAction cb, void *cb_cls)
Call cb on all monitors that watch for blocks of type and key key.
bool GDS_CLIENTS_handle_reply(const struct GNUNET_DATACACHE_Block *bd, const struct GNUNET_HashCode *query_hash, unsigned int get_path_length, const struct GNUNET_DHT_PathElement *get_path)
Handle a reply we've received from another peer.
static void handle_dht_local_put(void *cls, const struct GNUNET_DHT_ClientPutMessage *dht_msg)
Handler for PUT messages.
static struct ClientMonitorRecord * monitor_tail
List of active monitoring requests.
void GDS_CLIENTS_stop(void)
Shutdown client subsystem.
static enum GNUNET_GenericReturnValue check_dht_local_get(void *cls, const struct GNUNET_DHT_ClientGetMessage *get)
Check DHT GET messages from the client.
static void handle_dht_local_hello_offer(void *cls, const struct GNUNET_MessageHeader *msg)
Handler for HELLO OFFER message.
#define LOG_TRAFFIC(kind,...)
Should routing details be logged to stderr (for debugging)?
void __attribute__((destructor))
MINIMIZE heap size (way below 128k) since this process doesn't need much.
static enum GNUNET_GenericReturnValue check_dht_local_get_result_seen(void *cls, const struct GNUNET_DHT_ClientGetResultSeenMessage *seen)
Check "GET result seen" messages from the client.
static void transmit_next_request_task(void *cls)
Task that looks at the retry_heap and transmits all of the requests on the heap that are ready for tr...
static void client_disconnect_cb(void *cls, struct GNUNET_SERVICE_Client *client, void *app_ctx)
Functions with this signature are called whenever a client is disconnected on the network level.
static void put_action(void *cls, struct ClientMonitorRecord *m)
Function called on monitors that match a PUT.
static void remove_client_query_record(struct ClientQueryRecord *record)
Free data structures associated with the given query.
static void get_action(void *cls, struct ClientMonitorRecord *m)
Function called on monitors that match a GET.
const struct GNUNET_CONFIGURATION_Handle * GDS_cfg
The configuration the DHT service is running with.
void(* MonitorAction)(void *cls, struct ClientMonitorRecord *m)
Function to call by for_matching_monitors().
enum GNUNET_BLOCK_ReplyEvaluationResult GDS_DATACACHE_handle_get(const struct GNUNET_HashCode *key, enum GNUNET_BLOCK_Type type, const void *xquery, size_t xquery_size, struct GNUNET_BLOCK_Group *bg, GDS_DATACACHE_GetCallback gc, void *gc_cls)
Handle a GET request we've received from another peer.
void GDS_DATACACHE_handle_put(const struct GNUNET_DATACACHE_Block *bd)
Handle a datum we've received from another peer.
enum GNUNET_GenericReturnValue GDS_NEIGHBOURS_handle_put(const struct GNUNET_DATACACHE_Block *bd, uint16_t desired_replication_level, uint16_t hop_count, struct GNUNET_CONTAINER_BloomFilter *bf)
Perform a PUT operation.
void GDS_try_connect(void *cls, const struct GNUNET_PeerIdentity *pid, const char *uri)
Callback function used to extract URIs from a builder.
enum GNUNET_GenericReturnValue GDS_am_closest_peer(const struct GNUNET_HashCode *key, const struct GNUNET_CONTAINER_BloomFilter *bloom)
Check whether my identity is closer than any known peers.
enum GNUNET_GenericReturnValue GDS_NEIGHBOURS_handle_get(enum GNUNET_BLOCK_Type type, enum GNUNET_DHT_RouteOption options, uint16_t desired_replication_level, uint16_t hop_count, const struct GNUNET_HashCode *key, const void *xquery, size_t xquery_size, struct GNUNET_BLOCK_Group *bg, struct GNUNET_CONTAINER_BloomFilter *peer_bf)
Perform a GET operation.
#define GNUNET_MAX_MESSAGE_SIZE
Largest supported message (to be precise, one byte more than the largest possible message,...
enum GNUNET_GenericReturnValue GNUNET_BLOCK_group_set_seen(struct GNUNET_BLOCK_Group *bg, const struct GNUNET_HashCode *seen_results, unsigned int seen_results_count)
Update block group to filter out the given results.
enum GNUNET_BLOCK_ReplyEvaluationResult GNUNET_BLOCK_check_reply(struct GNUNET_BLOCK_Context *ctx, enum GNUNET_BLOCK_Type type, struct GNUNET_BLOCK_Group *group, const struct GNUNET_HashCode *query, const void *xquery, size_t xquery_size, const void *reply_block, size_t reply_block_size)
Function called to validate if a reply is good for a particular query.
enum GNUNET_GenericReturnValue GNUNET_BLOCK_check_block(struct GNUNET_BLOCK_Context *ctx, enum GNUNET_BLOCK_Type type, const void *block, size_t block_size)
Function called to validate a block.
GNUNET_BLOCK_ReplyEvaluationResult
Possible ways for how a block may relate to a query.
void GNUNET_BLOCK_group_destroy(struct GNUNET_BLOCK_Group *bg)
Destroy resources used by a block group.
struct GNUNET_BLOCK_Group * GNUNET_BLOCK_group_create(struct GNUNET_BLOCK_Context *ctx, enum GNUNET_BLOCK_Type type, const void *raw_data, size_t raw_data_size,...)
Create a new block group.
@ GNUNET_BLOCK_REPLY_OK_MORE
Valid result, and there may be more.
@ GNUNET_BLOCK_REPLY_OK_DUPLICATE
Valid result, but suppressed because it is a duplicate.
@ GNUNET_BLOCK_REPLY_OK_LAST
Last possible valid result.
@ GNUNET_BLOCK_REPLY_TYPE_NOT_SUPPORTED
Specified block type not supported by any plugin.
@ GNUNET_BLOCK_REPLY_IRRELEVANT
Block does not match xquery (valid result, not relevant for the request)
struct GNUNET_CONTAINER_BloomFilter * GNUNET_CONTAINER_bloomfilter_init(const char *data, size_t size, unsigned int k)
Create a Bloom filter from raw bits.
void GNUNET_CONTAINER_bloomfilter_free(struct GNUNET_CONTAINER_BloomFilter *bf)
Free the space associated with a filter in memory, flush to drive if needed (do not free the space on...
#define GNUNET_CONSTANTS_BLOOMFILTER_K
K-value that must be used for the bloom filters in 'GET' queries.
GNUNET_DHT_RouteOption
Options for routing.
#define GNUNET_DHT_MAXIMUM_REPLICATION_LEVEL
Maximum allowed replication level for all requests.
unsigned int GNUNET_DHT_verify_path(const void *data, size_t data_size, struct GNUNET_TIME_Absolute exp_time, const struct GNUNET_PeerIdentity *trunc_peer, const struct GNUNET_DHT_PathElement *put_path, unsigned int put_path_len, const struct GNUNET_DHT_PathElement *get_path, unsigned int get_path_len, const struct GNUNET_PeerIdentity *me)
Verify signatures on a path consisting of put_path and get_path in reverse order (starting at the las...
@ GNUNET_DHT_RO_TRUNCATED
Flag set if the path was truncated.
@ GNUNET_DHT_RO_FIND_APPROXIMATE
Approximate results are fine.
@ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE
Each peer along the way should process the request (otherwise only peers locally closest to the key w...
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
#define GNUNET_CONTAINER_DLL_insert(head, tail, element)
Insert an element at the head of a DLL.
void GNUNET_CRYPTO_hash(const void *block, size_t size, struct GNUNET_HashCode *ret)
Compute hash of a given block.
enum GNUNET_GenericReturnValue GNUNET_CONTAINER_multihashmap_remove(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, const void *value)
Remove the given key-value pair from the map.
enum GNUNET_GenericReturnValue GNUNET_CONTAINER_multihashmap_put(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, void *value, enum GNUNET_CONTAINER_MultiHashMapOption opt)
Store a key-value pair in the map.
unsigned int GNUNET_CONTAINER_multihashmap_size(const struct GNUNET_CONTAINER_MultiHashMap *map)
Get the number of key-value pairs in the map.
void GNUNET_CONTAINER_multihashmap_destroy(struct GNUNET_CONTAINER_MultiHashMap *map)
Destroy a hash map.
struct GNUNET_CONTAINER_MultiHashMap * GNUNET_CONTAINER_multihashmap_create(unsigned int len, int do_not_copy_keys)
Create a multi hash map.
enum GNUNET_GenericReturnValue GNUNET_CONTAINER_multihashmap_get_multiple(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, GNUNET_CONTAINER_MultiHashMapIteratorCallback it, void *it_cls)
Iterate over all entries in the map that match a particular key.
@ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE
Allow multiple values with the same key.
void * GNUNET_CONTAINER_heap_remove_node(struct GNUNET_CONTAINER_HeapNode *node)
Removes a node from the heap.
void * GNUNET_CONTAINER_heap_remove_root(struct GNUNET_CONTAINER_Heap *heap)
Remove root of the heap.
struct GNUNET_CONTAINER_HeapNode * GNUNET_CONTAINER_heap_insert(struct GNUNET_CONTAINER_Heap *heap, void *element, GNUNET_CONTAINER_HeapCostType cost)
Inserts a new element into the heap.
unsigned int GNUNET_CONTAINER_heap_get_size(const struct GNUNET_CONTAINER_Heap *heap)
Get the current size of the heap.
struct GNUNET_CONTAINER_Heap * GNUNET_CONTAINER_heap_create(enum GNUNET_CONTAINER_HeapOrder order)
Create a new heap.
void GNUNET_CONTAINER_heap_destroy(struct GNUNET_CONTAINER_Heap *heap)
Destroys the heap.
@ GNUNET_CONTAINER_HEAP_ORDER_MIN
Heap with the minimum cost at the root.
void GNUNET_HELLO_parser_free(struct GNUNET_HELLO_Parser *parser)
Release resources of a builder.
const struct GNUNET_PeerIdentity * GNUNET_HELLO_parser_iterate(const struct GNUNET_HELLO_Parser *parser, GNUNET_HELLO_UriCallback uc, void *uc_cls)
Iterate over URIs in a parser.
struct GNUNET_HELLO_Parser * GNUNET_HELLO_parser_from_url(const char *url)
Parse GNUnet HELLO url.
char * GNUNET_HELLO_builder_to_url(const struct GNUNET_HELLO_Builder *builder, const struct GNUNET_CRYPTO_EddsaPrivateKey *priv)
Generate GNUnet HELLO URI from a builder.
#define GNUNET_is_zero(a)
Check that memory in a is all zeros.
uint16_t type
The type of the message (GNUNET_MESSAGE_TYPE_XXXX), in big-endian format.
#define GNUNET_log(kind,...)
#define GNUNET_memcmp(a, b)
Compare memory in a and b, where both must be of the same pointer type.
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
GNUNET_GenericReturnValue
Named constants for return values.
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format.
#define GNUNET_break_op(cond)
Use this for assertion violations caused by other peers (i.e.
const char * GNUNET_h2s_full(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur.
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
@ GNUNET_ERROR_TYPE_DEBUG
#define GNUNET_array_grow(arr, size, tsize)
Grow a well-typed (!) array.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
#define GNUNET_malloc(size)
Wrapper around malloc.
#define GNUNET_array_append(arr, len, element)
Append an element to an array (growing the array by one).
#define GNUNET_free(ptr)
Wrapper around free.
void GNUNET_MQ_send(struct GNUNET_MQ_Handle *mq, struct GNUNET_MQ_Envelope *ev)
Send a message with the given message queue.
#define GNUNET_MQ_msg_extra(mvar, esize, type)
Allocate an envelope, with extra space allocated after the space needed by the message struct.
#define GNUNET_MQ_msg(mvar, type)
Allocate a GNUNET_MQ_Envelope.
#define GNUNET_MESSAGE_TYPE_DHT_MONITOR_GET
Receive information about transiting GETs.
#define GNUNET_MESSAGE_TYPE_DHT_MONITOR_GET_RESP
Receive information about transiting GET responses.
#define GNUNET_MESSAGE_TYPE_DHT_MONITOR_PUT
Receive information about transiting PUTs.
#define GNUNET_MESSAGE_TYPE_DHT_CLIENT_RESULT
Service returns result to client.
#define GNUNET_MESSAGE_TYPE_DHT_CLIENT_HELLO_URL
HELLO URL send between client and service (in either direction).
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_at(struct GNUNET_TIME_Absolute at, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run at the specified time.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
void GNUNET_SERVICE_client_drop(struct GNUNET_SERVICE_Client *c)
Ask the server to disconnect from the given client.
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
void GNUNET_STATISTICS_update(struct GNUNET_STATISTICS_Handle *handle, const char *name, int64_t delta, int make_persistent)
Set statistic value for the peer.
#define GNUNET_TIME_UNIT_SECONDS
One second.
struct GNUNET_TIME_Absolute GNUNET_TIME_absolute_get(void)
Get the current time.
struct GNUNET_TIME_Absolute GNUNET_TIME_absolute_ntoh(struct GNUNET_TIME_AbsoluteNBO a)
Convert absolute time from network byte order.
struct GNUNET_TIME_Absolute GNUNET_TIME_relative_to_absolute(struct GNUNET_TIME_Relative rel)
Convert relative time to an absolute time in the future.
struct GNUNET_TIME_AbsoluteNBO GNUNET_TIME_absolute_hton(struct GNUNET_TIME_Absolute a)
Convert absolute time to network byte order.
bool GNUNET_TIME_absolute_is_past(struct GNUNET_TIME_Absolute abs)
Test if abs is truly in the past (excluding now).
#define GNUNET_TIME_STD_BACKOFF(r)
Perform our standard exponential back-off calculation, starting at 1 ms and then going by a factor of...
static unsigned int size
Size of the "table".
GNUNET_BLOCK_Type
WARNING: This header is generated! In order to add DHT block types, you must register them in GANA,...
@ GNUNET_BLOCK_TYPE_ANY
Identifier for any block.
Struct containing information about a client, handle to connect to it, and any pending messages that ...
struct ClientQueryRecord * cqr_tail
Linked list of active queries of this client.
struct GNUNET_SERVICE_Client * client
The handle to this client.
struct GNUNET_MQ_Handle * mq
The message queue to this client.
struct ClientQueryRecord * cqr_head
Linked list of active queries of this client.
Struct containing parameters of monitoring requests.
struct ClientMonitorRecord * next
Next element in DLL.
uint16_t put
Flag whether to notify about PUT messages.
struct ClientMonitorRecord * prev
Previous element in DLL.
struct ClientHandle * ch
Client to notify of these requests.
enum GNUNET_BLOCK_Type type
Type of blocks that are of interest.
int16_t get
Flag whether to notify about GET messages.
struct GNUNET_HashCode key
Key of data of interest.
int16_t get_resp
Flag whether to notify about GET_REPONSE messages.
Entry in the local forwarding map for a client's GET request.
unsigned int seen_replies_count
Number of entries in seen_replies.
size_t xquery_size
Number of bytes in xquery.
struct GNUNET_TIME_Relative retry_frequency
What's the delay between re-try operations that we currently use for this request?
struct ClientQueryRecord * prev
Kept in a DLL with client.
struct GNUNET_CONTAINER_HeapNode * hnode
Pointer to this nodes heap location in the retry-heap (for fast removal)
struct ClientHandle * ch
Client responsible for the request.
struct GNUNET_HashCode * seen_replies
Array of (hashes of) replies we have already seen for this request.
uint64_t unique_id
The unique identifier of this request.
enum GNUNET_DHT_RouteOption msg_options
Any message options for this request.
struct GNUNET_HashCode key
The key this request was about.
enum GNUNET_BLOCK_Type type
The type for the data for the GET request.
const void * xquery
Extended query (see gnunet_block_lib.h), allocated at the end of this struct.
struct GNUNET_TIME_Absolute retry_time
What's the next time we should re-try this request?
struct ClientQueryRecord * next
Kept in a DLL with client.
uint32_t replication
Desired replication level.
Closure for find_by_unique_id().
uint64_t unique_id
Unique ID to look for.
struct ClientQueryRecord * cqr
Where to store the result, if found.
Closure for forward_reply()
const struct GNUNET_DATACACHE_Block * bd
Block details.
const struct GNUNET_DHT_PathElement * get_path
GET path taken.
unsigned int get_path_length
Number of entries in get_path.
struct GNUNET_MQ_Handle * mq
Our control connection to the ARM service.
Handle to an initialized block library.
struct GNUNET_MQ_Handle * mq
Message Queue for the channel (which we are implementing).
Handle to a node in a heap.
Internal representation of the hash map.
Information about a block stored in the datacache.
const struct GNUNET_DHT_PathElement * put_path
PUT path taken by the block, array of peer identities.
enum GNUNET_BLOCK_Type type
Type of the block.
const void * data
Actual block data.
enum GNUNET_DHT_RouteOption ro
Options for routing for the block.
struct GNUNET_PeerIdentity trunc_peer
If the path was truncated, this is the peer ID at which the path was truncated.
struct GNUNET_HashCode key
Key of the block.
size_t data_size
Number of bytes in data.
unsigned int put_path_length
Length of the put_path array.
struct GNUNET_TIME_Absolute expiration_time
When does the block expire?
DHT GET message sent from clients to service.
DHT GET RESULTS KNOWN message sent from clients to service.
struct GNUNET_MessageHeader header
Type: GNUNET_MESSAGE_TYPE_DHT_CLIENT_GET_RESULTS_KNOWN.
struct GNUNET_HashCode key
The key we are searching for (to make it easy to find the corresponding GET inside the service).
uint64_t unique_id
Unique ID identifying this request.
Message which indicates the DHT should cancel outstanding requests and discard any state.
uint64_t unique_id
Unique ID identifying this request.
struct GNUNET_HashCode key
Key of this request.
Message to insert data into the DHT, sent from clients to DHT service.
struct GNUNET_HashCode key
The key to store the value under.
uint32_t type
The type of data to insert.
uint32_t options
Message options, actually an 'enum GNUNET_DHT_RouteOption' value.
struct GNUNET_MessageHeader header
Type: GNUNET_MESSAGE_TYPE_DHT_CLIENT_PUT.
uint32_t desired_replication_level
Replication level for this message.
struct GNUNET_TIME_AbsoluteNBO expiration
How long should this data persist?
Reply to a GET send from the service to a client.
uint32_t put_path_length
Number of peers recorded in the outgoing path from source to the storgage location of this message.
uint64_t unique_id
Unique ID of the matching GET request.
struct GNUNET_TIME_AbsoluteNBO expiration
When does this entry expire?
struct GNUNET_HashCode key
The key that was searched for.
uint32_t type
The type for the data.
uint32_t options
Message options, actually an 'enum GNUNET_DHT_RouteOption' value.
uint32_t get_path_length
The number of peer identities recorded from the storage location to this peer.
Message to monitor get requests going through peer, DHT service -> clients.
uint32_t hop_count
Hop count.
uint32_t options
Message options, actually an 'enum GNUNET_DHT_RouteOption' value.
uint32_t desired_replication_level
Replication level for this message.
struct GNUNET_HashCode key
The key to store the value under.
uint32_t type
The type of data in the request.
Message to monitor get results going through peer, DHT service -> clients.
struct GNUNET_HashCode key
The key of the corresponding GET request.
struct GNUNET_TIME_AbsoluteNBO expiration_time
When does the content expire?
uint32_t type
Content type.
uint32_t get_path_length
Length of the GET path that follows (if tracked).
uint32_t put_path_length
Length of the PUT path that follows (if tracked).
Message to monitor put requests going through peer, DHT service -> clients.
uint32_t options
Message options, actually an 'enum GNUNET_DHT_RouteOption' value.
struct GNUNET_TIME_AbsoluteNBO expiration_time
How long should this data persist?
uint32_t desired_replication_level
Replication level for this message.
struct GNUNET_HashCode key
The key to store the value under.
uint32_t hop_count
Hop count so far.
uint32_t type
The type of data in the request.
uint32_t put_path_length
Number of peers recorded in the outgoing path from source to the storage location of this message.
Message to request monitoring messages, clients -> DHT service.
A (signed) path tracking a block's flow through the DHT is represented by an array of path elements,...
Context for parsing HELLOs.
Handle to a message queue.
The identity of the host (wraps the signing key of the peer).
Entry in list of pending tasks.
Handle to a client that is connected to a service.
Time for absolute times used by GNUnet, in microseconds.
uint64_t abs_value_us
The actual value.
Time for relative time used by GNUnet, in microseconds.
Closure for get_action();.
const struct GNUNET_HashCode * key
enum GNUNET_DHT_RouteOption options
uint32_t desired_replication_level
struct GNUNET_PeerIdentity trunc_peer
enum GNUNET_BLOCK_Type type
Closure for put_action().
uint32_t desired_replication_level
const struct GNUNET_DATACACHE_Block * bd
Closure for remove_by_unique_id().
struct ClientHandle * ch
Client that issued the removal request.
uint64_t unique_id
Unique ID of the request.
Closure for response_action().
unsigned int get_path_length
const struct GNUNET_DHT_PathElement * get_path
const struct GNUNET_DATACACHE_Block * bd