From 47fb383ed46ccd2724cad225c99b692e16a0d400 Mon Sep 17 00:00:00 2001 From: "Nathan S. Evans" Date: Wed, 15 Dec 2010 11:10:12 +0000 Subject: [PATCH] different indentation, somewhat cleaner --- src/dht/gnunet-service-dht.c | 2602 +++++++++++++++++++--------------- 1 file changed, 1472 insertions(+), 1130 deletions(-) diff --git a/src/dht/gnunet-service-dht.c b/src/dht/gnunet-service-dht.c index df7c28024..02ce5ce14 100644 --- a/src/dht/gnunet-service-dht.c +++ b/src/dht/gnunet-service-dht.c @@ -149,12 +149,12 @@ /* * Default frequency for sending malicious get messages */ -#define DEFAULT_MALICIOUS_GET_FREQUENCY 1000 /* Number of milliseconds */ +#define DEFAULT_MALICIOUS_GET_FREQUENCY 1000 /* Number of milliseconds */ /* * Default frequency for sending malicious put messages */ -#define DEFAULT_MALICIOUS_PUT_FREQUENCY 1000 /* Default is in milliseconds */ +#define DEFAULT_MALICIOUS_PUT_FREQUENCY 1000 /* Default is in milliseconds */ #define DHT_DEFAULT_PING_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 1) @@ -176,32 +176,32 @@ enum ConvergenceOptions /** * Use the linear method for convergence. */ - DHT_CONVERGE_LINEAR, + DHT_CONVERGE_LINEAR, /** * Converge using a fast converging square * function. */ - DHT_CONVERGE_SQUARE, + DHT_CONVERGE_SQUARE, /** * Converge using a slower exponential * function. */ - DHT_CONVERGE_EXPONENTIAL, + DHT_CONVERGE_EXPONENTIAL, /** * Don't do any special convergence, allow * the algorithm to hopefully route to closer * peers more often. */ - DHT_CONVERGE_RANDOM, + DHT_CONVERGE_RANDOM, /** * Binary convergence, start routing to closest * only after set number of hops. */ - DHT_CONVERGE_BINARY + DHT_CONVERGE_BINARY }; /** @@ -237,7 +237,7 @@ struct P2PPendingMessage /** * Actual message to be sent; // avoid allocation */ - const struct GNUNET_MessageHeader *msg; // msg = (cast) &pm[1]; // memcpy (&pm[1], data, len); + const struct GNUNET_MessageHeader *msg; // msg = (cast) &pm[1]; // memcpy (&pm[1], data, len); }; @@ -363,7 +363,7 @@ struct PendingMessage /** * Actual message to be sent; // avoid allocation */ - const struct GNUNET_MessageHeader *msg; // msg = (cast) &pm[1]; // memcpy (&pm[1], data, len); + const struct GNUNET_MessageHeader *msg; // msg = (cast) &pm[1]; // memcpy (&pm[1], data, len); }; @@ -798,7 +798,7 @@ static GNUNET_SCHEDULER_TaskIdentifier cleanup_task; /** * The lowest currently used bucket. */ -static unsigned int lowest_bucket; /* Initially equal to MAX_BUCKETS - 1 */ +static unsigned int lowest_bucket; /* Initially equal to MAX_BUCKETS - 1 */ /** * The maximum number of hops before we stop routing messages. @@ -819,7 +819,7 @@ static int use_max_hops; * The buckets (Kademlia routing table, complete with growth). * Array of size MAX_BUCKET_SIZE. */ -static struct PeerBucket k_buckets[MAX_BUCKETS]; /* From 0 to MAX_BUCKETS - 1 */ +static struct PeerBucket k_buckets[MAX_BUCKETS]; /* From 0 to MAX_BUCKETS - 1 */ /** * Hash map of all known peers, for easy removal from k_buckets on disconnect. @@ -834,7 +834,7 @@ static struct GNUNET_CONTAINER_MultiHashMap *recent_find_peer_requests; /** * Maximum size for each bucket. */ -static unsigned int bucket_size = DEFAULT_BUCKET_SIZE; /* Initially equal to DEFAULT_BUCKET_SIZE */ +static unsigned int bucket_size = DEFAULT_BUCKET_SIZE; /* Initially equal to DEFAULT_BUCKET_SIZE */ /** * List of active clients. @@ -911,14 +911,11 @@ static struct GNUNET_BLOCK_Context *block_context; /** * Forward declaration. */ -static size_t -send_generic_reply (void *cls, size_t size, void *buf); +static size_t send_generic_reply (void *cls, size_t size, void *buf); /** Declare here so retry_core_send is aware of it */ -static size_t -core_transmit_notify (void *cls, - size_t size, void *buf); +static size_t core_transmit_notify (void *cls, size_t size, void *buf); /** * Convert unique ID to hash code. @@ -927,11 +924,10 @@ core_transmit_notify (void *cls, * @param hash set to uid (extended with zeros) */ static void -hash_from_uid (uint64_t uid, - GNUNET_HashCode *hash) +hash_from_uid (uint64_t uid, GNUNET_HashCode * hash) { - memset (hash, 0, sizeof(GNUNET_HashCode)); - *((uint64_t*)hash) = uid; + memset (hash, 0, sizeof (GNUNET_HashCode)); + *((uint64_t *) hash) = uid; } #if AVG @@ -942,31 +938,31 @@ hash_from_uid (uint64_t uid, * @return the average time between asking core to send a message * and when the buffer for copying it is passed */ -static struct GNUNET_TIME_Relative get_average_send_delay() +static struct GNUNET_TIME_Relative +get_average_send_delay () { unsigned int i; unsigned int divisor; struct GNUNET_TIME_Relative average_time; - average_time = GNUNET_TIME_relative_get_zero(); + average_time = GNUNET_TIME_relative_get_zero (); divisor = 0; for (i = 0; i < MAX_REPLY_TIMES; i++) - { - average_time = GNUNET_TIME_relative_add(average_time, reply_times[i]); - if (reply_times[i].abs_value == (uint64_t)0) - continue; - else - divisor++; - } + { + average_time = GNUNET_TIME_relative_add (average_time, reply_times[i]); + if (reply_times[i].abs_value == (uint64_t) 0) + continue; + else + divisor++; + } if (divisor == 0) - { - return average_time; - } - - average_time = GNUNET_TIME_relative_divide(average_time, divisor); - fprintf(stderr, - "Avg send delay: %u sends is %llu\n", - divisor, - (unsigned long long) average_time.abs_value); + { + return average_time; + } + + average_time = GNUNET_TIME_relative_divide (average_time, divisor); + fprintf (stderr, + "Avg send delay: %u sends is %llu\n", + divisor, (unsigned long long) average_time.abs_value); return average_time; } #endif @@ -976,7 +972,8 @@ static struct GNUNET_TIME_Relative get_average_send_delay() * so the next time around we may have a chance at sending * again. */ -static void decrease_max_send_delay(struct GNUNET_TIME_Relative max_time) +static void +decrease_max_send_delay (struct GNUNET_TIME_Relative max_time) { unsigned int i; for (i = 0; i < MAX_REPLY_TIMES; i++) @@ -995,26 +992,27 @@ static void decrease_max_send_delay(struct GNUNET_TIME_Relative max_time) * @return the average time between asking core to send a message * and when the buffer for copying it is passed */ -static struct GNUNET_TIME_Relative get_max_send_delay() +static struct GNUNET_TIME_Relative +get_max_send_delay () { unsigned int i; struct GNUNET_TIME_Relative max_time; - max_time = GNUNET_TIME_relative_get_zero(); + max_time = GNUNET_TIME_relative_get_zero (); for (i = 0; i < MAX_REPLY_TIMES; i++) - { - if (reply_times[i].rel_value > max_time.rel_value) - max_time.rel_value = reply_times[i].rel_value; - } + { + if (reply_times[i].rel_value > max_time.rel_value) + max_time.rel_value = reply_times[i].rel_value; + } if (max_time.rel_value > MAX_REQUEST_TIME.rel_value) - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Max send delay was %llu\n", - (unsigned long long) max_time.rel_value); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Max send delay was %llu\n", + (unsigned long long) max_time.rel_value); return max_time; } static void -increment_stats(const char *value) +increment_stats (const char *value) { if (stats != NULL) { @@ -1026,8 +1024,7 @@ increment_stats(const char *value) * Try to send another message from our core send list */ static void -try_core_send (void *cls, - const struct GNUNET_SCHEDULER_TaskContext *tc) +try_core_send (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) { struct PeerInfo *peer = cls; struct P2PPendingMessage *pending; @@ -1039,26 +1036,27 @@ try_core_send (void *cls, return; if (peer->th != NULL) - return; /* Message send already in progress */ + return; /* Message send already in progress */ pending = peer->head; if (pending != NULL) { - ssize = ntohs(pending->msg->size); + ssize = ntohs (pending->msg->size); #if DEBUG_DHT > 1 - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Calling notify_transmit_ready with size %d for peer %s\n", my_short_id, - "DHT", ssize, GNUNET_i2s(&peer->id)); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "`%s:%s': Calling notify_transmit_ready with size %d for peer %s\n", + my_short_id, "DHT", ssize, GNUNET_i2s (&peer->id)); #endif - pending->scheduled = GNUNET_TIME_absolute_get(); + pending->scheduled = GNUNET_TIME_absolute_get (); reply_counter++; if (reply_counter >= MAX_REPLY_TIMES) - reply_counter = 0; - peer->th = GNUNET_CORE_notify_transmit_ready (coreAPI, pending->importance, - pending->timeout, &peer->id, - ssize, &core_transmit_notify, peer); + reply_counter = 0; + peer->th = + GNUNET_CORE_notify_transmit_ready (coreAPI, pending->importance, + pending->timeout, &peer->id, ssize, + &core_transmit_notify, peer); if (peer->th == NULL) - increment_stats("# notify transmit ready failed"); + increment_stats ("# notify transmit ready failed"); } } @@ -1071,43 +1069,52 @@ try_core_send (void *cls, * @param peer the peer to forward the message to * @param msg_ctx the context of the message (hop count, bloom, etc.) */ -static void +static void forward_result_message (const struct GNUNET_MessageHeader *msg, - struct PeerInfo *peer, - struct DHT_MessageContext *msg_ctx) + struct PeerInfo *peer, + struct DHT_MessageContext *msg_ctx) { struct GNUNET_DHT_P2PRouteResultMessage *result_message; struct P2PPendingMessage *pending; size_t msize; size_t psize; - increment_stats(STAT_RESULT_FORWARDS); - msize = sizeof (struct GNUNET_DHT_P2PRouteResultMessage) + ntohs(msg->size); - GNUNET_assert(msize <= GNUNET_SERVER_MAX_MESSAGE_SIZE); - psize = sizeof(struct P2PPendingMessage) + msize; - pending = GNUNET_malloc(psize); - pending->msg = (struct GNUNET_MessageHeader *)&pending[1]; + increment_stats (STAT_RESULT_FORWARDS); + msize = + sizeof (struct GNUNET_DHT_P2PRouteResultMessage) + ntohs (msg->size); + GNUNET_assert (msize <= GNUNET_SERVER_MAX_MESSAGE_SIZE); + psize = sizeof (struct P2PPendingMessage) + msize; + pending = GNUNET_malloc (psize); + pending->msg = (struct GNUNET_MessageHeader *) &pending[1]; pending->importance = DHT_SEND_PRIORITY; - pending->timeout = GNUNET_TIME_relative_get_forever(); - result_message = (struct GNUNET_DHT_P2PRouteResultMessage *)pending->msg; - result_message->header.size = htons(msize); - result_message->header.type = htons(GNUNET_MESSAGE_TYPE_DHT_P2P_ROUTE_RESULT); - result_message->put_path_length = htons(0); /* FIXME: implement */ - result_message->get_path_length = htons(0); /* FIXME: implement */ - result_message->options = htonl(msg_ctx->msg_options); - result_message->hop_count = htonl(msg_ctx->hop_count + 1); - GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_bloomfilter_get_raw_data(msg_ctx->bloom, result_message->bloomfilter, DHT_BLOOM_SIZE)); - result_message->unique_id = GNUNET_htonll(msg_ctx->unique_id); - memcpy(&result_message->key, &msg_ctx->key, sizeof(GNUNET_HashCode)); - memcpy(&result_message[1], msg, ntohs(msg->size)); + pending->timeout = GNUNET_TIME_relative_get_forever (); + result_message = (struct GNUNET_DHT_P2PRouteResultMessage *) pending->msg; + result_message->header.size = htons (msize); + result_message->header.type = + htons (GNUNET_MESSAGE_TYPE_DHT_P2P_ROUTE_RESULT); + result_message->put_path_length = htons (0); /* FIXME: implement */ + result_message->get_path_length = htons (0); /* FIXME: implement */ + result_message->options = htonl (msg_ctx->msg_options); + result_message->hop_count = htonl (msg_ctx->hop_count + 1); + GNUNET_assert (GNUNET_OK == + GNUNET_CONTAINER_bloomfilter_get_raw_data (msg_ctx->bloom, + result_message-> + bloomfilter, + DHT_BLOOM_SIZE)); + result_message->unique_id = GNUNET_htonll (msg_ctx->unique_id); + memcpy (&result_message->key, &msg_ctx->key, sizeof (GNUNET_HashCode)); + memcpy (&result_message[1], msg, ntohs (msg->size)); #if DEBUG_DHT > 1 - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s:%s Adding pending message size %d for peer %s\n", my_short_id, "DHT", msize, GNUNET_i2s(&peer->id)); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Adding pending message size %d for peer %s\n", + my_short_id, "DHT", msize, GNUNET_i2s (&peer->id)); #endif peer->pending_count++; - increment_stats("# pending messages scheduled"); - GNUNET_CONTAINER_DLL_insert_after(peer->head, peer->tail, peer->tail, pending); + increment_stats ("# pending messages scheduled"); + GNUNET_CONTAINER_DLL_insert_after (peer->head, peer->tail, peer->tail, + pending); if (peer->send_task == GNUNET_SCHEDULER_NO_TASK) - peer->send_task = GNUNET_SCHEDULER_add_now(&try_core_send, peer); + peer->send_task = GNUNET_SCHEDULER_add_now (&try_core_send, peer); } @@ -1120,9 +1127,8 @@ forward_result_message (const struct GNUNET_MessageHeader *msg, * @param buf where the callee should write the message * @return number of bytes written to buf */ -static size_t -core_transmit_notify (void *cls, - size_t size, void *buf) +static size_t +core_transmit_notify (void *cls, size_t size, void *buf) { struct PeerInfo *peer = cls; char *cbuf = buf; @@ -1135,7 +1141,8 @@ core_transmit_notify (void *cls, { /* client disconnected */ #if DEBUG_DHT - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s:%s': buffer was NULL\n", my_short_id, "DHT"); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s:%s': buffer was NULL\n", + my_short_id, "DHT"); #endif return 0; } @@ -1146,18 +1153,18 @@ core_transmit_notify (void *cls, off = 0; pending = peer->head; #if DUMB - reply_times[reply_counter] = GNUNET_TIME_absolute_get_difference(pending->scheduled, GNUNET_TIME_absolute_get()); - msize = ntohs(pending->msg->size); + reply_times[reply_counter] = + GNUNET_TIME_absolute_get_difference (pending->scheduled, + GNUNET_TIME_absolute_get ()); + msize = ntohs (pending->msg->size); if (msize <= size) { off = msize; memcpy (cbuf, pending->msg, msize); peer->pending_count--; - increment_stats("# pending messages sent"); - GNUNET_assert(peer->pending_count >= 0); - GNUNET_CONTAINER_DLL_remove (peer->head, - peer->tail, - pending); + increment_stats ("# pending messages sent"); + GNUNET_assert (peer->pending_count >= 0); + GNUNET_CONTAINER_DLL_remove (peer->head, peer->tail, pending); GNUNET_free (pending); } #else @@ -1167,11 +1174,9 @@ core_transmit_notify (void *cls, memcpy (&cbuf[off], pending->msg, msize); off += msize; peer->pending_count--; - increment_stats("# pending messages sent"); - GNUNET_assert(peer->pending_count >= 0); - GNUNET_CONTAINER_DLL_remove (peer->head, - peer->tail, - pending); + increment_stats ("# pending messages sent"); + GNUNET_assert (peer->pending_count >= 0); + GNUNET_CONTAINER_DLL_remove (peer->head, peer->tail, pending); GNUNET_free (pending); pending = peer->head; } @@ -1232,7 +1237,8 @@ distance (const GNUNET_HashCode * target, const GNUNET_HashCode * have) for (i = bucket + 1; (i < sizeof (GNUNET_HashCode) * 8) && (i < bucket + 1 + 32 - 9); i++) { - if (GNUNET_CRYPTO_hash_get_bit (target, i) != GNUNET_CRYPTO_hash_get_bit (have, i)) + if (GNUNET_CRYPTO_hash_get_bit (target, i) != + GNUNET_CRYPTO_hash_get_bit (have, i)) lsb |= (1 << (bucket + 32 - 9 - i)); /* first bit set will be 10, last bit set will be 31 -- if i does not reach 512 first... */ @@ -1251,8 +1257,8 @@ static unsigned int inverse_distance (const GNUNET_HashCode * target, const GNUNET_HashCode * have) { - if (GNUNET_CRYPTO_hash_matching_bits(target, have) == 0) - return 1; /* Never return 0! */ + if (GNUNET_CRYPTO_hash_matching_bits (target, have) == 0) + return 1; /* Never return 0! */ return ((unsigned int) -1) - distance (target, have); } @@ -1265,11 +1271,12 @@ inverse_distance (const GNUNET_HashCode * target, * @return the proper bucket index, or GNUNET_SYSERR * on error (same hashcode) */ -static int find_bucket(const GNUNET_HashCode *hc) +static int +find_bucket (const GNUNET_HashCode * hc) { unsigned int bits; - bits = GNUNET_CRYPTO_hash_matching_bits(&my_identity.hashPubKey, hc); + bits = GNUNET_CRYPTO_hash_matching_bits (&my_identity.hashPubKey, hc); if (bits == MAX_BUCKETS) return GNUNET_SYSERR; return MAX_BUCKETS - bits - 1; @@ -1287,14 +1294,15 @@ static int find_bucket(const GNUNET_HashCode *hc) * @return the proper bucket index for this key, * or GNUNET_SYSERR on error (same hashcode) */ -static int find_current_bucket(const GNUNET_HashCode *hc) +static int +find_current_bucket (const GNUNET_HashCode * hc) { int actual_bucket; - actual_bucket = find_bucket(hc); + actual_bucket = find_bucket (hc); - if (actual_bucket == GNUNET_SYSERR) /* hc and our peer identity match! */ + if (actual_bucket == GNUNET_SYSERR) /* hc and our peer identity match! */ return lowest_bucket; - else if (actual_bucket < lowest_bucket) /* actual_bucket not yet used */ + else if (actual_bucket < lowest_bucket) /* actual_bucket not yet used */ return lowest_bucket; else return actual_bucket; @@ -1309,7 +1317,7 @@ static int find_current_bucket(const GNUNET_HashCode *hc) * @return the bucket number holding the peer, GNUNET_SYSERR if not found */ static int -find_bucket_by_peer(const struct PeerInfo *peer) +find_bucket_by_peer (const struct PeerInfo *peer) { int bucket; struct PeerInfo *pos; @@ -1325,7 +1333,7 @@ find_bucket_by_peer(const struct PeerInfo *peer) } } - return GNUNET_SYSERR; /* No such peer. */ + return GNUNET_SYSERR; /* No such peer. */ } #endif @@ -1340,24 +1348,32 @@ print_routing_table () struct PeerInfo *pos; char char_buf[30000]; int char_pos; - memset(char_buf, 0, sizeof(char_buf)); + memset (char_buf, 0, sizeof (char_buf)); char_pos = 0; - char_pos += sprintf(&char_buf[char_pos], "Printing routing table for peer %s\n", my_short_id); + char_pos += + sprintf (&char_buf[char_pos], "Printing routing table for peer %s\n", + my_short_id); //fprintf(stderr, "Printing routing table for peer %s\n", my_short_id); for (bucket = lowest_bucket; bucket < MAX_BUCKETS; bucket++) { pos = k_buckets[bucket].head; - char_pos += sprintf(&char_buf[char_pos], "Bucket %d:\n", bucket); + char_pos += sprintf (&char_buf[char_pos], "Bucket %d:\n", bucket); //fprintf(stderr, "Bucket %d:\n", bucket); while (pos != NULL) { //fprintf(stderr, "\tPeer %s, best bucket %d, %d bits match\n", GNUNET_i2s(&pos->id), find_bucket(&pos->id.hashPubKey), GNUNET_CRYPTO_hash_matching_bits(&pos->id.hashPubKey, &my_identity.hashPubKey)); - char_pos += sprintf(&char_buf[char_pos], "\tPeer %s, best bucket %d, %d bits match\n", GNUNET_i2s(&pos->id), find_bucket(&pos->id.hashPubKey), GNUNET_CRYPTO_hash_matching_bits(&pos->id.hashPubKey, &my_identity.hashPubKey)); + char_pos += + sprintf (&char_buf[char_pos], + "\tPeer %s, best bucket %d, %d bits match\n", + GNUNET_i2s (&pos->id), find_bucket (&pos->id.hashPubKey), + GNUNET_CRYPTO_hash_matching_bits (&pos->id.hashPubKey, + &my_identity. + hashPubKey)); pos = pos->next; } } - fprintf(stderr, "%s", char_buf); - fflush(stderr); + fprintf (stderr, "%s", char_buf); + fflush (stderr); } #endif @@ -1369,23 +1385,23 @@ print_routing_table () * @return the routing table entry, or NULL if not found */ static struct PeerInfo * -find_peer_by_id(const struct GNUNET_PeerIdentity *peer) +find_peer_by_id (const struct GNUNET_PeerIdentity *peer) { int bucket; struct PeerInfo *pos; - bucket = find_current_bucket(&peer->hashPubKey); + bucket = find_current_bucket (&peer->hashPubKey); - if (0 == memcmp(&my_identity, peer, sizeof(struct GNUNET_PeerIdentity))) + if (0 == memcmp (&my_identity, peer, sizeof (struct GNUNET_PeerIdentity))) return NULL; pos = k_buckets[bucket].head; while (pos != NULL) { - if (0 == memcmp(&pos->id, peer, sizeof(struct GNUNET_PeerIdentity))) + if (0 == memcmp (&pos->id, peer, sizeof (struct GNUNET_PeerIdentity))) return pos; pos = pos->next; } - return NULL; /* No such peer. */ + return NULL; /* No such peer. */ } /* Forward declaration */ @@ -1404,13 +1420,14 @@ update_core_preference (void *cls, */ static void update_core_preference_finish (void *cls, - const struct GNUNET_PeerIdentity * peer, + const struct GNUNET_PeerIdentity *peer, struct GNUNET_BANDWIDTH_Value32NBO bpm_out, int amount, uint64_t preference) { struct PeerInfo *peer_info = cls; peer_info->info_ctx = NULL; - GNUNET_SCHEDULER_add_delayed(DHT_DEFAULT_PREFERENCE_INTERVAL, &update_core_preference, peer_info); + GNUNET_SCHEDULER_add_delayed (DHT_DEFAULT_PREFERENCE_INTERVAL, + &update_core_preference, peer_info); } static void @@ -1424,18 +1441,23 @@ update_core_preference (void *cls, { return; } - matching = GNUNET_CRYPTO_hash_matching_bits(&my_identity.hashPubKey, &peer->id.hashPubKey); + matching = + GNUNET_CRYPTO_hash_matching_bits (&my_identity.hashPubKey, + &peer->id.hashPubKey); if (matching >= 64) { - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer identifier matches by %u bits, only shifting as much as we can!\n", matching); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Peer identifier matches by %u bits, only shifting as much as we can!\n", + matching); matching = 63; } preference = 1LL << matching; peer->info_ctx = GNUNET_CORE_peer_change_preference (coreAPI, &peer->id, - GNUNET_TIME_relative_get_forever(), - GNUNET_BANDWIDTH_value_init (UINT32_MAX), - 0, + GNUNET_TIME_relative_get_forever + (), + GNUNET_BANDWIDTH_value_init + (UINT32_MAX), 0, preference, &update_core_preference_finish, peer); @@ -1453,31 +1475,33 @@ update_core_preference (void *cls, * @return the newly added PeerInfo */ static struct PeerInfo * -add_peer(const struct GNUNET_PeerIdentity *peer, - unsigned int bucket, - const struct GNUNET_TRANSPORT_ATS_Information *atsi) +add_peer (const struct GNUNET_PeerIdentity *peer, + unsigned int bucket, + const struct GNUNET_TRANSPORT_ATS_Information *atsi) { struct PeerInfo *new_peer; - GNUNET_assert(bucket < MAX_BUCKETS); - GNUNET_assert(peer != NULL); - new_peer = GNUNET_malloc(sizeof(struct PeerInfo)); + GNUNET_assert (bucket < MAX_BUCKETS); + GNUNET_assert (peer != NULL); + new_peer = GNUNET_malloc (sizeof (struct PeerInfo)); #if 0 new_peer->latency = latency; new_peer->distance = distance; #endif - memcpy(&new_peer->id, peer, sizeof(struct GNUNET_PeerIdentity)); + memcpy (&new_peer->id, peer, sizeof (struct GNUNET_PeerIdentity)); - GNUNET_CONTAINER_DLL_insert_after(k_buckets[bucket].head, - k_buckets[bucket].tail, - k_buckets[bucket].tail, - new_peer); + GNUNET_CONTAINER_DLL_insert_after (k_buckets[bucket].head, + k_buckets[bucket].tail, + k_buckets[bucket].tail, new_peer); k_buckets[bucket].peers_size++; - if ((GNUNET_CRYPTO_hash_matching_bits(&my_identity.hashPubKey, &peer->hashPubKey) > 0) && (k_buckets[bucket].peers_size <= bucket_size)) + if ((GNUNET_CRYPTO_hash_matching_bits + (&my_identity.hashPubKey, &peer->hashPubKey) > 0) + && (k_buckets[bucket].peers_size <= bucket_size)) { #if DO_UPDATE_PREFERENCE - new_peer->preference_task = GNUNET_SCHEDULER_add_now(&update_core_preference, new_peer); + new_peer->preference_task = + GNUNET_SCHEDULER_add_now (&update_core_preference, new_peer); #endif } @@ -1494,16 +1518,16 @@ add_peer(const struct GNUNET_PeerIdentity *peer, * @param peer the peer to remove * @param bucket the bucket the peer belongs to */ -static void remove_peer (struct PeerInfo *peer, - unsigned int bucket) +static void +remove_peer (struct PeerInfo *peer, unsigned int bucket) { - GNUNET_assert(k_buckets[bucket].peers_size > 0); - GNUNET_CONTAINER_DLL_remove(k_buckets[bucket].head, - k_buckets[bucket].tail, - peer); + GNUNET_assert (k_buckets[bucket].peers_size > 0); + GNUNET_CONTAINER_DLL_remove (k_buckets[bucket].head, + k_buckets[bucket].tail, peer); k_buckets[bucket].peers_size--; #if CHANGE_LOWEST - if ((bucket == lowest_bucket) && (k_buckets[lowest_bucket].peers_size == 0) && (lowest_bucket < MAX_BUCKETS - 1)) + if ((bucket == lowest_bucket) && (k_buckets[lowest_bucket].peers_size == 0) + && (lowest_bucket < MAX_BUCKETS - 1)) lowest_bucket++; #endif } @@ -1515,8 +1539,8 @@ static void remove_peer (struct PeerInfo *peer, * @param peer peer to be removed and freed * @param bucket which bucket this peer belongs to */ -static void delete_peer (struct PeerInfo *peer, - unsigned int bucket) +static void +delete_peer (struct PeerInfo *peer, unsigned int bucket) { struct P2PPendingMessage *pos; struct P2PPendingMessage *next; @@ -1528,30 +1552,41 @@ static void delete_peer (struct PeerInfo *peer, peer_pos = peer_pos->next; if (peer_pos == NULL) { - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s:%s: Expected peer `%s' in bucket %d\n", my_short_id, "DHT", GNUNET_i2s(&peer->id), bucket); - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s:%s: Lowest bucket: %d, find_current_bucket: %d, peer resides in bucket: %d\n", my_short_id, "DHT", lowest_bucket, find_current_bucket(&peer->id.hashPubKey), find_bucket_by_peer(peer)); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "%s:%s: Expected peer `%s' in bucket %d\n", my_short_id, + "DHT", GNUNET_i2s (&peer->id), bucket); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "%s:%s: Lowest bucket: %d, find_current_bucket: %d, peer resides in bucket: %d\n", + my_short_id, "DHT", lowest_bucket, + find_current_bucket (&peer->id.hashPubKey), + find_bucket_by_peer (peer)); } - GNUNET_assert(peer_pos != NULL); + GNUNET_assert (peer_pos != NULL); #endif - remove_peer(peer, bucket); /* First remove the peer from its bucket */ + remove_peer (peer, bucket); /* First remove the peer from its bucket */ if (peer->send_task != GNUNET_SCHEDULER_NO_TASK) - GNUNET_SCHEDULER_cancel(peer->send_task); + GNUNET_SCHEDULER_cancel (peer->send_task); if ((peer->th != NULL) && (coreAPI != NULL)) - GNUNET_CORE_notify_transmit_ready_cancel(peer->th); + GNUNET_CORE_notify_transmit_ready_cancel (peer->th); pos = peer->head; - while (pos != NULL) /* Remove any pending messages for this peer */ + while (pos != NULL) /* Remove any pending messages for this peer */ { - increment_stats("# dht pending messages discarded (due to disconnect/shutdown)"); + increment_stats + ("# dht pending messages discarded (due to disconnect/shutdown)"); next = pos->next; - GNUNET_free(pos); + GNUNET_free (pos); pos = next; } - GNUNET_assert(GNUNET_CONTAINER_multihashmap_contains(all_known_peers, &peer->id.hashPubKey)); - GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove (all_known_peers, &peer->id.hashPubKey, peer)); - GNUNET_free(peer); + GNUNET_assert (GNUNET_CONTAINER_multihashmap_contains + (all_known_peers, &peer->id.hashPubKey)); + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove (all_known_peers, + &peer->id.hashPubKey, + peer)); + GNUNET_free (peer); } @@ -1565,20 +1600,18 @@ static void delete_peer (struct PeerInfo *peer, * iterate, * GNUNET_NO if not. */ -static int move_lowest_bucket (void *cls, - const GNUNET_HashCode * key, - void *value) +static int +move_lowest_bucket (void *cls, const GNUNET_HashCode * key, void *value) { struct PeerInfo *peer = value; int new_bucket; - GNUNET_assert(lowest_bucket > 0); + GNUNET_assert (lowest_bucket > 0); new_bucket = lowest_bucket - 1; - remove_peer(peer, lowest_bucket); - GNUNET_CONTAINER_DLL_insert_after(k_buckets[new_bucket].head, - k_buckets[new_bucket].tail, - k_buckets[new_bucket].tail, - peer); + remove_peer (peer, lowest_bucket); + GNUNET_CONTAINER_DLL_insert_after (k_buckets[new_bucket].head, + k_buckets[new_bucket].tail, + k_buckets[new_bucket].tail, peer); k_buckets[new_bucket].peers_size++; return GNUNET_YES; } @@ -1589,33 +1622,37 @@ static int move_lowest_bucket (void *cls, * bucket to the next lower down, and move any appropriate * entries in the current lowest bucket to the new bucket. */ -static void enable_next_bucket() +static void +enable_next_bucket () { struct GNUNET_CONTAINER_MultiHashMap *to_remove; struct PeerInfo *pos; - GNUNET_assert(lowest_bucket > 0); - to_remove = GNUNET_CONTAINER_multihashmap_create(bucket_size); + GNUNET_assert (lowest_bucket > 0); + to_remove = GNUNET_CONTAINER_multihashmap_create (bucket_size); pos = k_buckets[lowest_bucket].head; #if PRINT_TABLES - fprintf(stderr, "Printing RT before new bucket\n"); - print_routing_table(); + fprintf (stderr, "Printing RT before new bucket\n"); + print_routing_table (); #endif /* Populate the array of peers which should be in the next lowest bucket */ while (pos != NULL) { - if (find_bucket(&pos->id.hashPubKey) < lowest_bucket) - GNUNET_CONTAINER_multihashmap_put(to_remove, &pos->id.hashPubKey, pos, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY); + if (find_bucket (&pos->id.hashPubKey) < lowest_bucket) + GNUNET_CONTAINER_multihashmap_put (to_remove, &pos->id.hashPubKey, + pos, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY); pos = pos->next; } /* Remove peers from lowest bucket, insert into next lowest bucket */ - GNUNET_CONTAINER_multihashmap_iterate(to_remove, &move_lowest_bucket, NULL); - GNUNET_CONTAINER_multihashmap_destroy(to_remove); + GNUNET_CONTAINER_multihashmap_iterate (to_remove, &move_lowest_bucket, + NULL); + GNUNET_CONTAINER_multihashmap_destroy (to_remove); lowest_bucket = lowest_bucket - 1; #if PRINT_TABLES - fprintf(stderr, "Printing RT after new bucket\n"); - print_routing_table(); + fprintf (stderr, "Printing RT after new bucket\n"); + print_routing_table (); #endif } @@ -1627,7 +1664,7 @@ static void enable_next_bucket() * key, or NULL on error. */ static struct PeerInfo * -find_closest_peer (const GNUNET_HashCode *hc) +find_closest_peer (const GNUNET_HashCode * hc) { struct PeerInfo *pos; struct PeerInfo *current_closest; @@ -1648,7 +1685,7 @@ find_closest_peer (const GNUNET_HashCode *hc) count = 0; while ((pos != NULL) && (count < bucket_size)) { - temp_distance = distance(&pos->id.hashPubKey, hc); + temp_distance = distance (&pos->id.hashPubKey, hc); if (temp_distance <= lowest_distance) { lowest_distance = temp_distance; @@ -1658,7 +1695,7 @@ find_closest_peer (const GNUNET_HashCode *hc) count++; } } - GNUNET_assert(current_closest != NULL); + GNUNET_assert (current_closest != NULL); return current_closest; } @@ -1672,47 +1709,55 @@ find_closest_peer (const GNUNET_HashCode *hc) * @param peer the peer to forward the message to * @param msg_ctx the context of the message (hop count, bloom, etc.) */ -static void forward_message (const struct GNUNET_MessageHeader *msg, - struct PeerInfo *peer, - struct DHT_MessageContext *msg_ctx) +static void +forward_message (const struct GNUNET_MessageHeader *msg, + struct PeerInfo *peer, struct DHT_MessageContext *msg_ctx) { struct GNUNET_DHT_P2PRouteMessage *route_message; struct P2PPendingMessage *pending; size_t msize; size_t psize; - increment_stats(STAT_ROUTE_FORWARDS); - GNUNET_assert(peer != NULL); - if ((msg_ctx->closest != GNUNET_YES) && (peer == find_closest_peer(&msg_ctx->key))) - increment_stats(STAT_ROUTE_FORWARDS_CLOSEST); - - msize = sizeof (struct GNUNET_DHT_P2PRouteMessage) + ntohs(msg->size); - GNUNET_assert(msize <= GNUNET_SERVER_MAX_MESSAGE_SIZE); - psize = sizeof(struct P2PPendingMessage) + msize; - pending = GNUNET_malloc(psize); - pending->msg = (struct GNUNET_MessageHeader *)&pending[1]; + increment_stats (STAT_ROUTE_FORWARDS); + GNUNET_assert (peer != NULL); + if ((msg_ctx->closest != GNUNET_YES) + && (peer == find_closest_peer (&msg_ctx->key))) + increment_stats (STAT_ROUTE_FORWARDS_CLOSEST); + + msize = sizeof (struct GNUNET_DHT_P2PRouteMessage) + ntohs (msg->size); + GNUNET_assert (msize <= GNUNET_SERVER_MAX_MESSAGE_SIZE); + psize = sizeof (struct P2PPendingMessage) + msize; + pending = GNUNET_malloc (psize); + pending->msg = (struct GNUNET_MessageHeader *) &pending[1]; pending->importance = msg_ctx->importance; pending->timeout = msg_ctx->timeout; - route_message = (struct GNUNET_DHT_P2PRouteMessage *)pending->msg; - route_message->header.size = htons(msize); - route_message->header.type = htons(GNUNET_MESSAGE_TYPE_DHT_P2P_ROUTE); - route_message->options = htonl(msg_ctx->msg_options); - route_message->hop_count = htonl(msg_ctx->hop_count + 1); - route_message->network_size = htonl(msg_ctx->network_size); - route_message->desired_replication_level = htonl(msg_ctx->replication); - route_message->unique_id = GNUNET_htonll(msg_ctx->unique_id); + route_message = (struct GNUNET_DHT_P2PRouteMessage *) pending->msg; + route_message->header.size = htons (msize); + route_message->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_P2P_ROUTE); + route_message->options = htonl (msg_ctx->msg_options); + route_message->hop_count = htonl (msg_ctx->hop_count + 1); + route_message->network_size = htonl (msg_ctx->network_size); + route_message->desired_replication_level = htonl (msg_ctx->replication); + route_message->unique_id = GNUNET_htonll (msg_ctx->unique_id); if (msg_ctx->bloom != NULL) - GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_bloomfilter_get_raw_data(msg_ctx->bloom, route_message->bloomfilter, DHT_BLOOM_SIZE)); - memcpy(&route_message->key, &msg_ctx->key, sizeof(GNUNET_HashCode)); - memcpy(&route_message[1], msg, ntohs(msg->size)); + GNUNET_assert (GNUNET_OK == + GNUNET_CONTAINER_bloomfilter_get_raw_data (msg_ctx->bloom, + route_message-> + bloomfilter, + DHT_BLOOM_SIZE)); + memcpy (&route_message->key, &msg_ctx->key, sizeof (GNUNET_HashCode)); + memcpy (&route_message[1], msg, ntohs (msg->size)); #if DEBUG_DHT > 1 - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s:%s Adding pending message size %d for peer %s\n", my_short_id, "DHT", msize, GNUNET_i2s(&peer->id)); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Adding pending message size %d for peer %s\n", + my_short_id, "DHT", msize, GNUNET_i2s (&peer->id)); #endif peer->pending_count++; - increment_stats("# pending messages scheduled"); - GNUNET_CONTAINER_DLL_insert_after(peer->head, peer->tail, peer->tail, pending); + increment_stats ("# pending messages scheduled"); + GNUNET_CONTAINER_DLL_insert_after (peer->head, peer->tail, peer->tail, + pending); if (peer->send_task == GNUNET_SCHEDULER_NO_TASK) - peer->send_task = GNUNET_SCHEDULER_add_now(&try_core_send, peer); + peer->send_task = GNUNET_SCHEDULER_add_now (&try_core_send, peer); } #if DO_PING @@ -1733,22 +1778,27 @@ periodic_ping_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) return; - ping_message.size = htons(sizeof(struct GNUNET_MessageHeader)); - ping_message.type = htons(GNUNET_MESSAGE_TYPE_DHT_P2P_PING); + ping_message.size = htons (sizeof (struct GNUNET_MessageHeader)); + ping_message.type = htons (GNUNET_MESSAGE_TYPE_DHT_P2P_PING); - memset(&msg_ctx, 0, sizeof(struct DHT_MessageContext)); + memset (&msg_ctx, 0, sizeof (struct DHT_MessageContext)); #if DEBUG_PING - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s:%s Sending periodic ping to %s\n", my_short_id, "DHT", GNUNET_i2s(&peer->id)); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "%s:%s Sending periodic ping to %s\n", my_short_id, "DHT", + GNUNET_i2s (&peer->id)); #endif - forward_message(&ping_message, peer, &msg_ctx); - peer->ping_task = GNUNET_SCHEDULER_add_delayed(DHT_DEFAULT_PING_DELAY, &periodic_ping_task, peer); + forward_message (&ping_message, peer, &msg_ctx); + peer->ping_task = + GNUNET_SCHEDULER_add_delayed (DHT_DEFAULT_PING_DELAY, &periodic_ping_task, + peer); } /** * Schedule PING messages for the top X peers in each * bucket of the routing table (so core won't disconnect them!) */ -void schedule_ping_messages() +void +schedule_ping_messages () { unsigned int bucket; unsigned int count; @@ -1759,11 +1809,13 @@ void schedule_ping_messages() count = 0; while (pos != NULL) { - if ((count < bucket_size) && (pos->ping_task == GNUNET_SCHEDULER_NO_TASK)) - GNUNET_SCHEDULER_add_now(&periodic_ping_task, pos); - else if ((count >= bucket_size) && (pos->ping_task != GNUNET_SCHEDULER_NO_TASK)) + if ((count < bucket_size) + && (pos->ping_task == GNUNET_SCHEDULER_NO_TASK)) + GNUNET_SCHEDULER_add_now (&periodic_ping_task, pos); + else if ((count >= bucket_size) + && (pos->ping_task != GNUNET_SCHEDULER_NO_TASK)) { - GNUNET_SCHEDULER_cancel(pos->ping_task); + GNUNET_SCHEDULER_cancel (pos->ping_task); pos->ping_task = GNUNET_SCHEDULER_NO_TASK; } pos = pos->next; @@ -1785,25 +1837,25 @@ void schedule_ping_messages() * pointer to PeerInfo for new peer otherwise */ static struct PeerInfo * -try_add_peer(const struct GNUNET_PeerIdentity *peer, - unsigned int bucket, - const struct GNUNET_TRANSPORT_ATS_Information *atsi) +try_add_peer (const struct GNUNET_PeerIdentity *peer, + unsigned int bucket, + const struct GNUNET_TRANSPORT_ATS_Information *atsi) { int peer_bucket; struct PeerInfo *new_peer; - if (0 == memcmp(&my_identity, peer, sizeof(struct GNUNET_PeerIdentity))) + if (0 == memcmp (&my_identity, peer, sizeof (struct GNUNET_PeerIdentity))) return NULL; - peer_bucket = find_current_bucket(&peer->hashPubKey); + peer_bucket = find_current_bucket (&peer->hashPubKey); - GNUNET_assert(peer_bucket >= lowest_bucket); - new_peer = add_peer(peer, peer_bucket, atsi); + GNUNET_assert (peer_bucket >= lowest_bucket); + new_peer = add_peer (peer, peer_bucket, atsi); if ((k_buckets[lowest_bucket].peers_size) >= bucket_size) - enable_next_bucket(); + enable_next_bucket (); #if DO_PING - schedule_ping_messages(); + schedule_ping_messages (); #endif return new_peer; } @@ -1816,18 +1868,18 @@ try_add_peer(const struct GNUNET_PeerIdentity *peer, */ static void process_pending_messages (struct ClientList *client) -{ - if (client->pending_head == NULL) - return; - if (client->transmit_handle != NULL) +{ + if (client->pending_head == NULL) + return; + if (client->transmit_handle != NULL) return; client->transmit_handle = GNUNET_SERVER_notify_transmit_ready (client->client_handle, - ntohs (client->pending_head->msg-> - size), - GNUNET_TIME_UNIT_FOREVER_REL, - &send_generic_reply, client); + ntohs (client->pending_head-> + msg->size), + GNUNET_TIME_UNIT_FOREVER_REL, + &send_generic_reply, client); } /** @@ -1852,18 +1904,17 @@ send_generic_reply (void *cls, size_t size, void *buf) size_t msize; client->transmit_handle = NULL; - if (buf == NULL) + if (buf == NULL) { /* client disconnected */ return 0; } off = 0; - while ( (NULL != (reply = client->pending_head)) && - (size >= off + (msize = ntohs (reply->msg->size)))) + while ((NULL != (reply = client->pending_head)) && + (size >= off + (msize = ntohs (reply->msg->size)))) { GNUNET_CONTAINER_DLL_remove (client->pending_head, - client->pending_tail, - reply); + client->pending_tail, reply); memcpy (&cbuf[off], reply->msg, msize); GNUNET_free (reply); off += msize; @@ -1871,8 +1922,8 @@ send_generic_reply (void *cls, size_t size, void *buf) process_pending_messages (client); #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Transmitted %u bytes of replies to client\n", - (unsigned int) off); + "Transmitted %u bytes of replies to client\n", + (unsigned int) off); #endif return off; } @@ -1889,9 +1940,8 @@ add_pending_message (struct ClientList *client, struct PendingMessage *pending_message) { GNUNET_CONTAINER_DLL_insert_after (client->pending_head, - client->pending_tail, - client->pending_tail, - pending_message); + client->pending_tail, + client->pending_tail, pending_message); process_pending_messages (client); } @@ -1907,8 +1957,7 @@ add_pending_message (struct ClientList *client, static void send_reply_to_client (struct ClientList *client, const struct GNUNET_MessageHeader *message, - unsigned long long uid, - const GNUNET_HashCode *key) + unsigned long long uid, const GNUNET_HashCode * key) { struct GNUNET_DHT_RouteResultMessage *reply; struct PendingMessage *pending_message; @@ -1926,12 +1975,12 @@ send_reply_to_client (struct ClientList *client, return; } pending_message = GNUNET_malloc (sizeof (struct PendingMessage) + tsize); - pending_message->msg = (struct GNUNET_MessageHeader *)&pending_message[1]; - reply = (struct GNUNET_DHT_RouteResultMessage *)&pending_message[1]; + pending_message->msg = (struct GNUNET_MessageHeader *) &pending_message[1]; + reply = (struct GNUNET_DHT_RouteResultMessage *) &pending_message[1]; reply->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_LOCAL_ROUTE_RESULT); reply->header.size = htons (tsize); - reply->put_path_length = htons(0); /* FIXME: implement */ - reply->get_path_length = htons(0); /* FIXME: implement */ + reply->put_path_length = htons (0); /* FIXME: implement */ + reply->get_path_length = htons (0); /* FIXME: implement */ reply->unique_id = GNUNET_htonll (uid); reply->key = *key; memcpy (&reply[1], message, msize); @@ -1950,15 +1999,21 @@ send_reply_to_client (struct ClientList *client, * @return GNUNET_YES if we want this peer, GNUNET_NO if not (bucket * already full) */ -static int consider_peer (struct GNUNET_PeerIdentity *peer) +static int +consider_peer (struct GNUNET_PeerIdentity *peer) { int bucket; - if ((GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains(all_known_peers, &peer->hashPubKey)) || (0 == memcmp(&my_identity, peer, sizeof(struct GNUNET_PeerIdentity)))) - return GNUNET_NO; /* We already know this peer (are connected even!) */ - bucket = find_current_bucket(&peer->hashPubKey); + if ((GNUNET_YES == + GNUNET_CONTAINER_multihashmap_contains (all_known_peers, + &peer->hashPubKey)) + || (0 == + memcmp (&my_identity, peer, sizeof (struct GNUNET_PeerIdentity)))) + return GNUNET_NO; /* We already know this peer (are connected even!) */ + bucket = find_current_bucket (&peer->hashPubKey); - if ((k_buckets[bucket].peers_size < bucket_size) || ((bucket == lowest_bucket) && (lowest_bucket > 0))) + if ((k_buckets[bucket].peers_size < bucket_size) + || ((bucket == lowest_bucket) && (lowest_bucket > 0))) return GNUNET_YES; return GNUNET_NO; @@ -1973,22 +2028,27 @@ static int consider_peer (struct GNUNET_PeerIdentity *peer) * @param tc context, reason, etc. */ static void -remove_forward_entry (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +remove_forward_entry (void *cls, + const struct GNUNET_SCHEDULER_TaskContext *tc) { struct DHTRouteSource *source_info = cls; struct DHTQueryRecord *record; - source_info = GNUNET_CONTAINER_heap_remove_node(forward_list.minHeap, source_info->hnode); + source_info = + GNUNET_CONTAINER_heap_remove_node (forward_list.minHeap, + source_info->hnode); record = source_info->record; - GNUNET_CONTAINER_DLL_remove(record->head, record->tail, source_info); + GNUNET_CONTAINER_DLL_remove (record->head, record->tail, source_info); - if (record->head == NULL) /* No more entries in DLL */ + if (record->head == NULL) /* No more entries in DLL */ { - GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove (forward_list.hashmap, &record->key, record)); - GNUNET_free(record); + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove + (forward_list.hashmap, &record->key, record)); + GNUNET_free (record); } if (source_info->find_peers_responded != NULL) - GNUNET_CONTAINER_bloomfilter_free(source_info->find_peers_responded); - GNUNET_free(source_info); + GNUNET_CONTAINER_bloomfilter_free (source_info->find_peers_responded); + GNUNET_free (source_info); } /** @@ -2001,8 +2061,9 @@ remove_forward_entry (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) * @return the number of peers the message was routed to, * GNUNET_SYSERR on failure */ -static int route_result_message(struct GNUNET_MessageHeader *msg, - struct DHT_MessageContext *msg_ctx) +static int +route_result_message (struct GNUNET_MessageHeader *msg, + struct DHT_MessageContext *msg_ctx) { struct GNUNET_PeerIdentity new_peer; struct DHTQueryRecord *record; @@ -2010,48 +2071,57 @@ static int route_result_message(struct GNUNET_MessageHeader *msg, struct PeerInfo *peer_info; const struct GNUNET_MessageHeader *hello_msg; - increment_stats(STAT_RESULTS); + increment_stats (STAT_RESULTS); /** * If a find peer result message is received and contains a valid * HELLO for another peer, offer it to the transport service. */ - if (ntohs(msg->type) == GNUNET_MESSAGE_TYPE_DHT_FIND_PEER_RESULT) + if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_DHT_FIND_PEER_RESULT) { - if (ntohs(msg->size) <= sizeof(struct GNUNET_MessageHeader)) - GNUNET_break_op(0); + if (ntohs (msg->size) <= sizeof (struct GNUNET_MessageHeader)) + GNUNET_break_op (0); hello_msg = &msg[1]; - if ((ntohs(hello_msg->type) != GNUNET_MESSAGE_TYPE_HELLO) || (GNUNET_SYSERR == GNUNET_HELLO_get_id((const struct GNUNET_HELLO_Message *)hello_msg, &new_peer))) - { - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s:%s Received non-HELLO message type in find peer result message!\n", my_short_id, "DHT"); - GNUNET_break_op(0); - return GNUNET_NO; - } - else /* We have a valid hello, and peer id stored in new_peer */ - { - find_peer_context.count++; - increment_stats(STAT_FIND_PEER_REPLY); - if (GNUNET_YES == consider_peer(&new_peer)) + if ((ntohs (hello_msg->type) != GNUNET_MESSAGE_TYPE_HELLO) + || (GNUNET_SYSERR == + GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *) + hello_msg, &new_peer))) { - increment_stats(STAT_HELLOS_PROVIDED); - GNUNET_TRANSPORT_offer_hello(transport_handle, hello_msg); - GNUNET_CORE_peer_request_connect(coreAPI, - GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5), &new_peer, NULL, NULL); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "%s:%s Received non-HELLO message type in find peer result message!\n", + my_short_id, "DHT"); + GNUNET_break_op (0); + return GNUNET_NO; + } + else /* We have a valid hello, and peer id stored in new_peer */ + { + find_peer_context.count++; + increment_stats (STAT_FIND_PEER_REPLY); + if (GNUNET_YES == consider_peer (&new_peer)) + { + increment_stats (STAT_HELLOS_PROVIDED); + GNUNET_TRANSPORT_offer_hello (transport_handle, hello_msg); + GNUNET_CORE_peer_request_connect (coreAPI, + GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_SECONDS, 5), + &new_peer, NULL, NULL); + } } - } } if (malicious_dropper == GNUNET_YES) record = NULL; else - record = GNUNET_CONTAINER_multihashmap_get(forward_list.hashmap, &msg_ctx->key); + record = + GNUNET_CONTAINER_multihashmap_get (forward_list.hashmap, &msg_ctx->key); - if (record == NULL) /* No record of this message! */ + if (record == NULL) /* No record of this message! */ { #if DEBUG_DHT - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Have no record of response key %s uid %llu\n", my_short_id, - "DHT", GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "`%s:%s': Have no record of response key %s uid %llu\n", + my_short_id, "DHT", GNUNET_h2s (&msg_ctx->key), + msg_ctx->unique_id); #endif #if DEBUG_DHT_ROUTING if ((debug_routes_extended) && (dhtlog_handle != NULL)) @@ -2062,13 +2132,12 @@ static int route_result_message(struct GNUNET_MessageHeader *msg, msg_ctx->hop_count, GNUNET_SYSERR, &my_identity, - &msg_ctx->key, - msg_ctx->peer, NULL); + &msg_ctx->key, msg_ctx->peer, NULL); } #endif if (msg_ctx->bloom != NULL) { - GNUNET_CONTAINER_bloomfilter_free(msg_ctx->bloom); + GNUNET_CONTAINER_bloomfilter_free (msg_ctx->bloom); msg_ctx->bloom = NULL; } return 0; @@ -2078,61 +2147,72 @@ static int route_result_message(struct GNUNET_MessageHeader *msg, while (pos != NULL) { #if STRICT_FORWARDING - if (ntohs(msg->type) == GNUNET_MESSAGE_TYPE_DHT_FIND_PEER_RESULT) /* If we have already forwarded this peer id, don't do it again! */ + if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_DHT_FIND_PEER_RESULT) /* If we have already forwarded this peer id, don't do it again! */ { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (pos->find_peers_responded, &new_peer.hashPubKey)) - { - increment_stats("# find peer responses NOT forwarded (bloom match)"); - pos = pos->next; - continue; - } + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (pos->find_peers_responded, + &new_peer.hashPubKey)) + { + increment_stats + ("# find peer responses NOT forwarded (bloom match)"); + pos = pos->next; + continue; + } else - GNUNET_CONTAINER_bloomfilter_add(pos->find_peers_responded, &new_peer.hashPubKey); + GNUNET_CONTAINER_bloomfilter_add (pos->find_peers_responded, + &new_peer.hashPubKey); } #endif - if (0 == memcmp(&pos->source, &my_identity, sizeof(struct GNUNET_PeerIdentity))) /* Local client (or DHT) initiated request! */ + if (0 == memcmp (&pos->source, &my_identity, sizeof (struct GNUNET_PeerIdentity))) /* Local client (or DHT) initiated request! */ { #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Sending response key %s uid %llu to client\n", my_short_id, - "DHT", GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id); + "`%s:%s': Sending response key %s uid %llu to client\n", + my_short_id, "DHT", GNUNET_h2s (&msg_ctx->key), + msg_ctx->unique_id); #endif #if DEBUG_DHT_ROUTING if ((debug_routes_extended) && (dhtlog_handle != NULL)) { - dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, DHTLOG_RESULT, - msg_ctx->hop_count, - GNUNET_YES, &my_identity, &msg_ctx->key, - msg_ctx->peer, NULL); + dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, + DHTLOG_RESULT, msg_ctx->hop_count, + GNUNET_YES, &my_identity, + &msg_ctx->key, msg_ctx->peer, + NULL); } #endif - increment_stats(STAT_RESULTS_TO_CLIENT); - if (ntohs(msg->type) == GNUNET_MESSAGE_TYPE_DHT_GET_RESULT) - increment_stats(STAT_GET_REPLY); + increment_stats (STAT_RESULTS_TO_CLIENT); + if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_DHT_GET_RESULT) + increment_stats (STAT_GET_REPLY); - send_reply_to_client(pos->client, msg, - msg_ctx->unique_id, - &msg_ctx->key); + send_reply_to_client (pos->client, msg, + msg_ctx->unique_id, &msg_ctx->key); } - else /* Send to peer */ + else /* Send to peer */ { - peer_info = find_peer_by_id(&pos->source); - if (peer_info == NULL) /* Didn't find the peer in our routing table, perhaps peer disconnected! */ + peer_info = find_peer_by_id (&pos->source); + if (peer_info == NULL) /* Didn't find the peer in our routing table, perhaps peer disconnected! */ { pos = pos->next; continue; } if (msg_ctx->bloom == NULL) - msg_ctx->bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); - GNUNET_CONTAINER_bloomfilter_add (msg_ctx->bloom, &my_identity.hashPubKey); - if ((GNUNET_NO == GNUNET_CONTAINER_bloomfilter_test (msg_ctx->bloom, &peer_info->id.hashPubKey))) + msg_ctx->bloom = + GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, + DHT_BLOOM_K); + GNUNET_CONTAINER_bloomfilter_add (msg_ctx->bloom, + &my_identity.hashPubKey); + if ((GNUNET_NO == + GNUNET_CONTAINER_bloomfilter_test (msg_ctx->bloom, + &peer_info->id.hashPubKey))) { #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Forwarding response key %s uid %llu to peer %s\n", my_short_id, - "DHT", GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id, GNUNET_i2s(&peer_info->id)); + "`%s:%s': Forwarding response key %s uid %llu to peer %s\n", + my_short_id, "DHT", GNUNET_h2s (&msg_ctx->key), + msg_ctx->unique_id, GNUNET_i2s (&peer_info->id)); #endif #if DEBUG_DHT_ROUTING if ((debug_routes_extended) && (dhtlog_handle != NULL)) @@ -2140,34 +2220,37 @@ static int route_result_message(struct GNUNET_MessageHeader *msg, dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, DHTLOG_RESULT, msg_ctx->hop_count, - GNUNET_NO, &my_identity, &msg_ctx->key, - msg_ctx->peer, &pos->source); + GNUNET_NO, &my_identity, + &msg_ctx->key, msg_ctx->peer, + &pos->source); } #endif forward_result_message (msg, peer_info, msg_ctx); /* Try removing forward entries after sending once, only allows ONE response per request */ if (pos->delete_task != GNUNET_SCHEDULER_NO_TASK) { - GNUNET_SCHEDULER_cancel(pos->delete_task); - pos->delete_task = GNUNET_SCHEDULER_add_now (&remove_forward_entry, pos); + GNUNET_SCHEDULER_cancel (pos->delete_task); + pos->delete_task = + GNUNET_SCHEDULER_add_now (&remove_forward_entry, pos); } } else { #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': NOT Forwarding response (bloom match) key %s uid %llu to peer %s\n", my_short_id, - "DHT", GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id, GNUNET_i2s(&peer_info->id)); + "`%s:%s': NOT Forwarding response (bloom match) key %s uid %llu to peer %s\n", + my_short_id, "DHT", GNUNET_h2s (&msg_ctx->key), + msg_ctx->unique_id, GNUNET_i2s (&peer_info->id)); #endif } } pos = pos->next; } if (msg_ctx->bloom != NULL) - { - GNUNET_CONTAINER_bloomfilter_free(msg_ctx->bloom); - msg_ctx->bloom = NULL; - } + { + GNUNET_CONTAINER_bloomfilter_free (msg_ctx->bloom); + msg_ctx->bloom = NULL; + } return 0; } @@ -2188,8 +2271,8 @@ static int datacache_get_iterator (void *cls, struct GNUNET_TIME_Absolute exp, const GNUNET_HashCode * key, - size_t size, const char *data, - enum GNUNET_BLOCK_Type type) + size_t size, const char *data, + enum GNUNET_BLOCK_Type type) { struct DHT_MessageContext *msg_ctx = cls; struct DHT_MessageContext *new_msg_ctx; @@ -2198,40 +2281,40 @@ datacache_get_iterator (void *cls, #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Received `%s' response from datacache\n", my_short_id, "DHT", "GET"); -#endif + "`%s:%s': Received `%s' response from datacache\n", my_short_id, + "DHT", "GET"); +#endif eval = GNUNET_BLOCK_evaluate (block_context, - type, - key, - &msg_ctx->reply_bf, - msg_ctx->reply_bf_mutator, - msg_ctx->xquery, - msg_ctx->xquery_size, - data, - size); + type, + key, + &msg_ctx->reply_bf, + msg_ctx->reply_bf_mutator, + msg_ctx->xquery, + msg_ctx->xquery_size, data, size); switch (eval) { case GNUNET_BLOCK_EVALUATION_OK_LAST: msg_ctx->do_forward = GNUNET_NO; case GNUNET_BLOCK_EVALUATION_OK_MORE: - new_msg_ctx = GNUNET_malloc(sizeof(struct DHT_MessageContext)); - memcpy(new_msg_ctx, msg_ctx, sizeof(struct DHT_MessageContext)); + new_msg_ctx = GNUNET_malloc (sizeof (struct DHT_MessageContext)); + memcpy (new_msg_ctx, msg_ctx, sizeof (struct DHT_MessageContext)); get_result = - GNUNET_malloc (sizeof (struct GNUNET_DHT_GetResultMessage) + size); + GNUNET_malloc (sizeof (struct GNUNET_DHT_GetResultMessage) + size); get_result->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_GET_RESULT); get_result->header.size = - htons (sizeof (struct GNUNET_DHT_GetResultMessage) + size); - get_result->expiration = GNUNET_TIME_absolute_hton(exp); + htons (sizeof (struct GNUNET_DHT_GetResultMessage) + size); + get_result->expiration = GNUNET_TIME_absolute_hton (exp); get_result->type = htons (type); memcpy (&get_result[1], data, size); new_msg_ctx->peer = &my_identity; - new_msg_ctx->bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); + new_msg_ctx->bloom = + GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); new_msg_ctx->hop_count = 0; new_msg_ctx->importance = DHT_DEFAULT_P2P_IMPORTANCE + 2; /* Make result routing a higher priority */ new_msg_ctx->timeout = DHT_DEFAULT_P2P_TIMEOUT; - increment_stats(STAT_GET_RESPONSE_START); - route_result_message(&get_result->header, new_msg_ctx); - GNUNET_free(new_msg_ctx); + increment_stats (STAT_GET_RESPONSE_START); + route_result_message (&get_result->header, new_msg_ctx); + GNUNET_free (new_msg_ctx); GNUNET_free (get_result); break; case GNUNET_BLOCK_EVALUATION_OK_DUPLICATE: @@ -2249,7 +2332,8 @@ datacache_get_iterator (void *cls, case GNUNET_BLOCK_EVALUATION_REQUEST_VALID: #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Valid request, no results.\n", my_short_id, "DHT"); + "`%s:%s': Valid request, no results.\n", my_short_id, + "DHT"); #endif GNUNET_break (0); break; @@ -2260,11 +2344,12 @@ datacache_get_iterator (void *cls, case GNUNET_BLOCK_EVALUATION_TYPE_NOT_SUPPORTED: #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Unsupported block type (%u) in response!\n", my_short_id, "DHT", type); + "`%s:%s': Unsupported block type (%u) in response!\n", + my_short_id, "DHT", type); #endif /* msg_ctx->do_forward = GNUNET_NO; // not sure... */ break; - } + } return GNUNET_OK; } @@ -2277,8 +2362,8 @@ datacache_get_iterator (void *cls, * @param msg_ctx the context containing all pertinent information about the message */ static void -route_message(const struct GNUNET_MessageHeader *msg, - struct DHT_MessageContext *msg_ctx); +route_message (const struct GNUNET_MessageHeader *msg, + struct DHT_MessageContext *msg_ctx); /** @@ -2310,20 +2395,21 @@ handle_dht_get (const struct GNUNET_MessageHeader *msg, get_msg = (const struct GNUNET_DHT_GetMessage *) msg; bf_size = ntohs (get_msg->bf_size); msg_ctx->xquery_size = ntohs (get_msg->xquery_size); - msg_ctx->reply_bf_mutator = get_msg->bf_mutator; /* FIXME: ntohl? */ - if (msize != sizeof (struct GNUNET_DHT_GetMessage) + bf_size + msg_ctx->xquery_size) + msg_ctx->reply_bf_mutator = get_msg->bf_mutator; /* FIXME: ntohl? */ + if (msize != + sizeof (struct GNUNET_DHT_GetMessage) + bf_size + msg_ctx->xquery_size) { GNUNET_break (0); return 0; } - end = (const char*) &get_msg[1]; + end = (const char *) &get_msg[1]; if (msg_ctx->xquery_size == 0) { msg_ctx->xquery = NULL; } else { - msg_ctx->xquery = (const void*) end; + msg_ctx->xquery = (const void *) end; end += msg_ctx->xquery_size; } if (bf_size == 0) @@ -2340,13 +2426,11 @@ handle_dht_get (const struct GNUNET_MessageHeader *msg, #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s:%s': Received `%s' request, message type %u, key %s, uid %llu\n", - my_short_id, - "DHT", "GET", - type, - GNUNET_h2s (&msg_ctx->key), - msg_ctx->unique_id); + my_short_id, + "DHT", "GET", + type, GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id); #endif - increment_stats(STAT_GETS); + increment_stats (STAT_GETS); results = 0; #if HAVE_MALICIOUS if (type == GNUNET_BLOCK_DHT_MALICIOUS_MESSAGE_TYPE) @@ -2359,13 +2443,12 @@ handle_dht_get (const struct GNUNET_MessageHeader *msg, if (datacache != NULL) results = GNUNET_DATACACHE_get (datacache, - &msg_ctx->key, type, - &datacache_get_iterator, - msg_ctx); + &msg_ctx->key, type, + &datacache_get_iterator, msg_ctx); #if DEBUG_DHT - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Found %d results for `%s' request uid %llu\n", my_short_id, "DHT", - results, "GET", msg_ctx->unique_id); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "`%s:%s': Found %d results for `%s' request uid %llu\n", + my_short_id, "DHT", results, "GET", msg_ctx->unique_id); #endif if (results >= 1) { @@ -2373,16 +2456,16 @@ handle_dht_get (const struct GNUNET_MessageHeader *msg, if ((debug_routes) && (dhtlog_handle != NULL)) { dhtlog_handle->insert_query (NULL, msg_ctx->unique_id, DHTLOG_GET, - msg_ctx->hop_count, GNUNET_YES, &my_identity, - &msg_ctx->key); + msg_ctx->hop_count, GNUNET_YES, + &my_identity, &msg_ctx->key); } if ((debug_routes_extended) && (dhtlog_handle != NULL)) { dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, DHTLOG_ROUTE, msg_ctx->hop_count, GNUNET_YES, - &my_identity, &msg_ctx->key, msg_ctx->peer, - NULL); + &my_identity, &msg_ctx->key, + msg_ctx->peer, NULL); } #endif } @@ -2390,29 +2473,28 @@ handle_dht_get (const struct GNUNET_MessageHeader *msg, { /* check query valid */ if (GNUNET_BLOCK_EVALUATION_REQUEST_INVALID - == GNUNET_BLOCK_evaluate (block_context, - type, - &msg_ctx->key, - &msg_ctx->reply_bf, - msg_ctx->reply_bf_mutator, - msg_ctx->xquery, - msg_ctx->xquery_size, - NULL, 0)) - { - GNUNET_break_op (0); - msg_ctx->do_forward = GNUNET_NO; - } - } - - if (msg_ctx->hop_count == 0) /* Locally initiated request */ + == GNUNET_BLOCK_evaluate (block_context, + type, + &msg_ctx->key, + &msg_ctx->reply_bf, + msg_ctx->reply_bf_mutator, + msg_ctx->xquery, + msg_ctx->xquery_size, NULL, 0)) + { + GNUNET_break_op (0); + msg_ctx->do_forward = GNUNET_NO; + } + } + + if (msg_ctx->hop_count == 0) /* Locally initiated request */ { #if DEBUG_DHT_ROUTING - if ((debug_routes) && (dhtlog_handle != NULL)) - { - dhtlog_handle->insert_query (NULL, msg_ctx->unique_id, DHTLOG_GET, - msg_ctx->hop_count, GNUNET_NO, &my_identity, - &msg_ctx->key); - } + if ((debug_routes) && (dhtlog_handle != NULL)) + { + dhtlog_handle->insert_query (NULL, msg_ctx->unique_id, DHTLOG_GET, + msg_ctx->hop_count, GNUNET_NO, + &my_identity, &msg_ctx->key); + } #endif } if (msg_ctx->do_forward == GNUNET_YES) @@ -2422,11 +2504,14 @@ handle_dht_get (const struct GNUNET_MessageHeader *msg, } static void -remove_recent_find_peer(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +remove_recent_find_peer (void *cls, + const struct GNUNET_SCHEDULER_TaskContext *tc) { GNUNET_HashCode *key = cls; - - GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(recent_find_peer_requests, key, NULL)); + + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove + (recent_find_peer_requests, key, NULL)); GNUNET_free (key); } @@ -2452,40 +2537,49 @@ handle_dht_find_peer (const struct GNUNET_MessageHeader *find_msg, size_t other_hello_size; struct GNUNET_PeerIdentity peer_id; - find_peer_message = (struct GNUNET_DHT_FindPeerMessage *)find_msg; - GNUNET_break_op(ntohs(find_msg->size) >= (sizeof(struct GNUNET_DHT_FindPeerMessage))); - if (ntohs(find_msg->size) < sizeof(struct GNUNET_DHT_FindPeerMessage)) + find_peer_message = (struct GNUNET_DHT_FindPeerMessage *) find_msg; + GNUNET_break_op (ntohs (find_msg->size) >= + (sizeof (struct GNUNET_DHT_FindPeerMessage))); + if (ntohs (find_msg->size) < sizeof (struct GNUNET_DHT_FindPeerMessage)) return; other_hello = NULL; other_hello_size = 0; - if (ntohs(find_msg->size) > sizeof(struct GNUNET_DHT_FindPeerMessage)) - { - other_hello_size = ntohs(find_msg->size) - sizeof(struct GNUNET_DHT_FindPeerMessage); - other_hello = GNUNET_malloc(other_hello_size); - memcpy(other_hello, &find_peer_message[1], other_hello_size); - if ((GNUNET_HELLO_size((struct GNUNET_HELLO_Message *)other_hello) == 0) || (GNUNET_OK != GNUNET_HELLO_get_id((struct GNUNET_HELLO_Message *)other_hello, &peer_id))) + if (ntohs (find_msg->size) > sizeof (struct GNUNET_DHT_FindPeerMessage)) + { + other_hello_size = + ntohs (find_msg->size) - sizeof (struct GNUNET_DHT_FindPeerMessage); + other_hello = GNUNET_malloc (other_hello_size); + memcpy (other_hello, &find_peer_message[1], other_hello_size); + if ((GNUNET_HELLO_size ((struct GNUNET_HELLO_Message *) other_hello) == + 0) + || (GNUNET_OK != + GNUNET_HELLO_get_id ((struct GNUNET_HELLO_Message *) + other_hello, &peer_id))) { - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Received invalid HELLO message in find peer request!\n"); - GNUNET_free(other_hello); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Received invalid HELLO message in find peer request!\n"); + GNUNET_free (other_hello); return; } #if FIND_PEER_WITH_HELLO - if (GNUNET_YES == consider_peer(&peer_id)) + if (GNUNET_YES == consider_peer (&peer_id)) { - increment_stats(STAT_HELLOS_PROVIDED); - GNUNET_TRANSPORT_offer_hello(transport_handle, other_hello); - GNUNET_CORE_peer_request_connect(coreAPI, - GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5), &peer_id, NULL, NULL); - route_message (find_msg, msg_ctx); - GNUNET_free (other_hello); + increment_stats (STAT_HELLOS_PROVIDED); + GNUNET_TRANSPORT_offer_hello (transport_handle, other_hello); + GNUNET_CORE_peer_request_connect (coreAPI, + GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_SECONDS, 5), + &peer_id, NULL, NULL); + route_message (find_msg, msg_ctx); + GNUNET_free (other_hello); + return; + } + else /* We don't want this peer! */ + { + route_message (find_msg, msg_ctx); + GNUNET_free (other_hello); return; } - else /* We don't want this peer! */ - { - route_message (find_msg, msg_ctx); - GNUNET_free (other_hello); - return; - } #endif } @@ -2493,43 +2587,45 @@ handle_dht_find_peer (const struct GNUNET_MessageHeader *find_msg, GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s:%s': Received `%s' request from client, key %s (msg size %d, we expected %d)\n", my_short_id, "DHT", "FIND PEER", GNUNET_h2s (&msg_ctx->key), - ntohs (find_msg->size), - sizeof (struct GNUNET_MessageHeader)); + ntohs (find_msg->size), sizeof (struct GNUNET_MessageHeader)); #endif if (my_hello == NULL) - { + { #if DEBUG_DHT - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s': Our HELLO is null, can't return.\n", - "DHT"); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "`%s': Our HELLO is null, can't return.\n", "DHT"); #endif - GNUNET_free_non_null (other_hello); - route_message (find_msg, msg_ctx); - return; - } + GNUNET_free_non_null (other_hello); + route_message (find_msg, msg_ctx); + return; + } - incoming_bloom = GNUNET_CONTAINER_bloomfilter_init(find_peer_message->bloomfilter, DHT_BLOOM_SIZE, DHT_BLOOM_K); - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(incoming_bloom, &my_identity.hashPubKey)) + incoming_bloom = + GNUNET_CONTAINER_bloomfilter_init (find_peer_message->bloomfilter, + DHT_BLOOM_SIZE, DHT_BLOOM_K); + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (incoming_bloom, + &my_identity.hashPubKey)) { - increment_stats(STAT_BLOOM_FIND_PEER); - GNUNET_CONTAINER_bloomfilter_free(incoming_bloom); - GNUNET_free_non_null(other_hello); + increment_stats (STAT_BLOOM_FIND_PEER); + GNUNET_CONTAINER_bloomfilter_free (incoming_bloom); + GNUNET_free_non_null (other_hello); route_message (find_msg, msg_ctx); - return; /* We match the bloomfilter, do not send a response to this peer (they likely already know us!)*/ + return; /* We match the bloomfilter, do not send a response to this peer (they likely already know us!) */ } - GNUNET_CONTAINER_bloomfilter_free(incoming_bloom); + GNUNET_CONTAINER_bloomfilter_free (incoming_bloom); #if RESTRICT_FIND_PEER /** * Ignore any find peer requests from a peer we have seen very recently. */ - if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains(recent_find_peer_requests, &msg_ctx->key)) /* We have recently responded to a find peer request for this peer! */ - { - increment_stats("# dht find peer requests ignored (recently seen!)"); - GNUNET_free_non_null(other_hello); - return; - } + if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains (recent_find_peer_requests, &msg_ctx->key)) /* We have recently responded to a find peer request for this peer! */ + { + increment_stats ("# dht find peer requests ignored (recently seen!)"); + GNUNET_free_non_null (other_hello); + return; + } /** * Use this check to only allow the peer to respond to find peer requests if @@ -2539,41 +2635,46 @@ handle_dht_find_peer (const struct GNUNET_MessageHeader *find_msg, * the network and has no other peers this is a problem (assume all buckets * full, no one will respond!). */ - memcpy(&peer_id.hashPubKey, &msg_ctx->key, sizeof(GNUNET_HashCode)); - if (GNUNET_NO == consider_peer(&peer_id)) + memcpy (&peer_id.hashPubKey, &msg_ctx->key, sizeof (GNUNET_HashCode)); + if (GNUNET_NO == consider_peer (&peer_id)) { - increment_stats("# dht find peer requests ignored (do not need!)"); - GNUNET_free_non_null(other_hello); + increment_stats ("# dht find peer requests ignored (do not need!)"); + GNUNET_free_non_null (other_hello); route_message (find_msg, msg_ctx); return; } #endif - recent_hash = GNUNET_malloc(sizeof(GNUNET_HashCode)); - memcpy(recent_hash, &msg_ctx->key, sizeof(GNUNET_HashCode)); - if (GNUNET_SYSERR != GNUNET_CONTAINER_multihashmap_put (recent_find_peer_requests, - &msg_ctx->key, NULL, - GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)) + recent_hash = GNUNET_malloc (sizeof (GNUNET_HashCode)); + memcpy (recent_hash, &msg_ctx->key, sizeof (GNUNET_HashCode)); + if (GNUNET_SYSERR != + GNUNET_CONTAINER_multihashmap_put (recent_find_peer_requests, + &msg_ctx->key, NULL, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)) { - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Adding recent remove task for key `%s`!\n", GNUNET_h2s(&msg_ctx->key)); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Adding recent remove task for key `%s`!\n", + GNUNET_h2s (&msg_ctx->key)); /* Only add a task if there wasn't one for this key already! */ - GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 30), + GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_SECONDS, 30), &remove_recent_find_peer, recent_hash); } else { - GNUNET_free(recent_hash); - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Received duplicate find peer request too soon!\n"); + GNUNET_free (recent_hash); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Received duplicate find peer request too soon!\n"); } /* Simplistic find_peer functionality, always return our hello */ - hello_size = ntohs(my_hello->size); + hello_size = ntohs (my_hello->size); tsize = hello_size + sizeof (struct GNUNET_MessageHeader); if (tsize >= GNUNET_SERVER_MAX_MESSAGE_SIZE) { GNUNET_break_op (0); - GNUNET_free_non_null(other_hello); + GNUNET_free_non_null (other_hello); return; } @@ -2586,26 +2687,27 @@ handle_dht_find_peer (const struct GNUNET_MessageHeader *find_msg, "`%s': Sending hello size %d to requesting peer.\n", "DHT", hello_size); - new_msg_ctx = GNUNET_malloc(sizeof(struct DHT_MessageContext)); - memcpy(new_msg_ctx, msg_ctx, sizeof(struct DHT_MessageContext)); + new_msg_ctx = GNUNET_malloc (sizeof (struct DHT_MessageContext)); + memcpy (new_msg_ctx, msg_ctx, sizeof (struct DHT_MessageContext)); new_msg_ctx->peer = &my_identity; - new_msg_ctx->bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); + new_msg_ctx->bloom = + GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); new_msg_ctx->hop_count = 0; - new_msg_ctx->importance = DHT_DEFAULT_P2P_IMPORTANCE + 2; /* Make find peer requests a higher priority */ + new_msg_ctx->importance = DHT_DEFAULT_P2P_IMPORTANCE + 2; /* Make find peer requests a higher priority */ new_msg_ctx->timeout = DHT_DEFAULT_P2P_TIMEOUT; - increment_stats(STAT_FIND_PEER_ANSWER); - route_result_message(find_peer_result, new_msg_ctx); - GNUNET_free(new_msg_ctx); + increment_stats (STAT_FIND_PEER_ANSWER); + route_result_message (find_peer_result, new_msg_ctx); + GNUNET_free (new_msg_ctx); #if DEBUG_DHT_ROUTING if ((debug_routes) && (dhtlog_handle != NULL)) { dhtlog_handle->insert_query (NULL, msg_ctx->unique_id, DHTLOG_FIND_PEER, - msg_ctx->hop_count, GNUNET_YES, &my_identity, - &msg_ctx->key); + msg_ctx->hop_count, GNUNET_YES, + &my_identity, &msg_ctx->key); } #endif - GNUNET_free_non_null(other_hello); - GNUNET_free(find_peer_result); + GNUNET_free_non_null (other_hello); + GNUNET_free (find_peer_result); route_message (find_msg, msg_ctx); } @@ -2617,7 +2719,7 @@ handle_dht_find_peer (const struct GNUNET_MessageHeader *find_msg, * @param tc runtime context for this task */ static void -republish_content(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc); +republish_content (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc); /** * Server handler for initiating local dht put requests @@ -2636,11 +2738,10 @@ handle_dht_put (const struct GNUNET_MessageHeader *msg, struct RepublishContext *put_context; GNUNET_HashCode key; - GNUNET_assert (ntohs (msg->size) >= - sizeof (struct GNUNET_DHT_PutMessage)); + GNUNET_assert (ntohs (msg->size) >= sizeof (struct GNUNET_DHT_PutMessage)); - put_msg = (const struct GNUNET_DHT_PutMessage *)msg; + put_msg = (const struct GNUNET_DHT_PutMessage *) msg; put_type = (enum GNUNET_BLOCK_Type) ntohl (put_msg->type); #if HAVE_MALICIOUS if (put_type == GNUNET_BLOCK_DHT_MALICIOUS_MESSAGE_TYPE) @@ -2651,19 +2752,18 @@ handle_dht_put (const struct GNUNET_MessageHeader *msg, /** Log routes that die due to high load! */ dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, DHTLOG_ROUTE, msg_ctx->hop_count, GNUNET_SYSERR, - &my_identity, &msg_ctx->key, msg_ctx->peer, - NULL); + &my_identity, &msg_ctx->key, + msg_ctx->peer, NULL); } #endif return; } #endif - data_size = ntohs (put_msg->header.size) - sizeof (struct GNUNET_DHT_PutMessage); - ret = GNUNET_BLOCK_get_key (block_context, - put_type, - &put_msg[1], - data_size, - &key); + data_size = + ntohs (put_msg->header.size) - sizeof (struct GNUNET_DHT_PutMessage); + ret = + GNUNET_BLOCK_get_key (block_context, put_type, &put_msg[1], data_size, + &key); if (GNUNET_NO == ret) { #if DEBUG_DHT_ROUTING @@ -2671,26 +2771,24 @@ handle_dht_put (const struct GNUNET_MessageHeader *msg, { dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, DHTLOG_ROUTE, msg_ctx->hop_count, GNUNET_SYSERR, - &my_identity, &msg_ctx->key, msg_ctx->peer, - NULL); + &my_identity, &msg_ctx->key, + msg_ctx->peer, NULL); } #endif /* invalid reply */ GNUNET_break_op (0); return; } - if ( (GNUNET_YES == ret) && - (0 != memcmp (&key, - &msg_ctx->key, - sizeof (GNUNET_HashCode))) ) + if ((GNUNET_YES == ret) && + (0 != memcmp (&key, &msg_ctx->key, sizeof (GNUNET_HashCode)))) { #if DEBUG_DHT_ROUTING if ((debug_routes_extended) && (dhtlog_handle != NULL)) { dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, DHTLOG_ROUTE, msg_ctx->hop_count, GNUNET_SYSERR, - &my_identity, &msg_ctx->key, msg_ctx->peer, - NULL); + &my_identity, &msg_ctx->key, + msg_ctx->peer, NULL); } #endif /* invalid wrapper: key mismatch! */ @@ -2702,16 +2800,17 @@ handle_dht_put (const struct GNUNET_MessageHeader *msg, #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s:%s': Received `%s' request (inserting data!), message type %d, key %s, uid %llu\n", - my_short_id, "DHT", "PUT", put_type, GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id); + my_short_id, "DHT", "PUT", put_type, GNUNET_h2s (&msg_ctx->key), + msg_ctx->unique_id); #endif #if DEBUG_DHT_ROUTING - if (msg_ctx->hop_count == 0) /* Locally initiated request */ + if (msg_ctx->hop_count == 0) /* Locally initiated request */ { if ((debug_routes) && (dhtlog_handle != NULL)) { dhtlog_handle->insert_query (NULL, msg_ctx->unique_id, DHTLOG_PUT, - msg_ctx->hop_count, GNUNET_NO, &my_identity, - &msg_ctx->key); + msg_ctx->hop_count, GNUNET_NO, + &my_identity, &msg_ctx->key); } } #endif @@ -2725,7 +2824,8 @@ handle_dht_put (const struct GNUNET_MessageHeader *msg, #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s:%s': Received `%s' request (inserting data!), message type %d, key %s, uid %llu\n", - my_short_id, "DHT", "PUT", put_type, GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id); + my_short_id, "DHT", "PUT", put_type, GNUNET_h2s (&msg_ctx->key), + msg_ctx->unique_id); #endif #if DEBUG_DHT_ROUTING @@ -2740,24 +2840,26 @@ handle_dht_put (const struct GNUNET_MessageHeader *msg, if ((debug_routes) && (dhtlog_handle != NULL)) { dhtlog_handle->insert_query (NULL, msg_ctx->unique_id, DHTLOG_PUT, - msg_ctx->hop_count, GNUNET_YES, &my_identity, - &msg_ctx->key); + msg_ctx->hop_count, GNUNET_YES, + &my_identity, &msg_ctx->key); } #endif - increment_stats(STAT_PUTS_INSERTED); + increment_stats (STAT_PUTS_INSERTED); if (datacache != NULL) { ret = GNUNET_DATACACHE_put (datacache, &msg_ctx->key, data_size, (char *) &put_msg[1], put_type, - GNUNET_TIME_absolute_ntoh(put_msg->expiration)); + GNUNET_TIME_absolute_ntoh + (put_msg->expiration)); if ((ret == GNUNET_YES) && (do_republish == GNUNET_YES)) { - put_context = GNUNET_malloc(sizeof(struct RepublishContext)); - memcpy(&put_context->key, &msg_ctx->key, sizeof(GNUNET_HashCode)); + put_context = GNUNET_malloc (sizeof (struct RepublishContext)); + memcpy (&put_context->key, &msg_ctx->key, sizeof (GNUNET_HashCode)); put_context->type = put_type; - GNUNET_SCHEDULER_add_delayed (dht_republish_frequency, &republish_content, put_context); + GNUNET_SCHEDULER_add_delayed (dht_republish_frequency, + &republish_content, put_context); } } else @@ -2783,7 +2885,8 @@ handle_dht_put (const struct GNUNET_MessageHeader *msg, * * @return ballpark diameter figure */ -static unsigned int estimate_diameter() +static unsigned int +estimate_diameter () { return MAX_BUCKETS - lowest_bucket; } @@ -2836,26 +2939,30 @@ get_forward_count (unsigned int hop_count, size_t target_replication) { #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Hop count too high (est %d, lowest %d), NOT Forwarding request\n", my_short_id, - "DHT", estimate_diameter(), lowest_bucket); + "`%s:%s': Hop count too high (est %d, lowest %d), NOT Forwarding request\n", + my_short_id, "DHT", estimate_diameter (), lowest_bucket); #endif return 0; } random_value = 0; forward_count = 1; - target_value = target_replication / (diameter + ((float)target_replication * hop_count)); + target_value = + target_replication / (diameter + + ((float) target_replication * hop_count)); if (target_value > 1) { /* Set forward count to floor of target_value */ - forward_count = (unsigned int)target_value; + forward_count = (unsigned int) target_value; /* Subtract forward_count (floor) from target_value (yields value between 0 and 1) */ target_value = target_value - forward_count; } else - random_value = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, (unsigned int)-1); + random_value = + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, + (unsigned int) -1); - if (random_value < (target_value * (unsigned int)-1)) + if (random_value < (target_value * (unsigned int) -1)) forward_count += 1; return forward_count; @@ -2873,7 +2980,8 @@ get_forward_count (unsigned int hop_count, size_t target_replication) * otherwise. */ int -am_closest_peer (const GNUNET_HashCode * target, struct GNUNET_CONTAINER_BloomFilter *bloom) +am_closest_peer (const GNUNET_HashCode * target, + struct GNUNET_CONTAINER_BloomFilter *bloom) { int bits; int other_bits; @@ -2882,31 +2990,34 @@ am_closest_peer (const GNUNET_HashCode * target, struct GNUNET_CONTAINER_BloomFi struct PeerInfo *pos; unsigned int my_distance; - if (0 == memcmp(&my_identity.hashPubKey, target, sizeof(GNUNET_HashCode))) + if (0 == memcmp (&my_identity.hashPubKey, target, sizeof (GNUNET_HashCode))) return GNUNET_YES; - bucket_num = find_current_bucket(target); + bucket_num = find_current_bucket (target); - bits = GNUNET_CRYPTO_hash_matching_bits(&my_identity.hashPubKey, target); - my_distance = distance(&my_identity.hashPubKey, target); + bits = GNUNET_CRYPTO_hash_matching_bits (&my_identity.hashPubKey, target); + my_distance = distance (&my_identity.hashPubKey, target); pos = k_buckets[bucket_num].head; count = 0; while ((pos != NULL) && (count < bucket_size)) { - if ((bloom != NULL) && (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(bloom, &pos->id.hashPubKey))) + if ((bloom != NULL) + && (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey))) { pos = pos->next; - continue; /* Skip already checked entries */ + continue; /* Skip already checked entries */ } - other_bits = GNUNET_CRYPTO_hash_matching_bits(&pos->id.hashPubKey, target); + other_bits = + GNUNET_CRYPTO_hash_matching_bits (&pos->id.hashPubKey, target); if (other_bits > bits) return GNUNET_NO; - else if (other_bits == bits) /* We match the same number of bits */ + else if (other_bits == bits) /* We match the same number of bits */ { - if (strict_kademlia != GNUNET_YES) /* Return that we at as close as any other peer */ + if (strict_kademlia != GNUNET_YES) /* Return that we at as close as any other peer */ return GNUNET_YES; - else if (distance(&pos->id.hashPubKey, target) < my_distance) /* Check all known peers, only return if we are the true closest */ + else if (distance (&pos->id.hashPubKey, target) < my_distance) /* Check all known peers, only return if we are the true closest */ return GNUNET_NO; } pos = pos->next; @@ -2931,13 +3042,12 @@ am_closest_peer (const GNUNET_HashCode * target, struct GNUNET_CONTAINER_BloomFi * */ static unsigned long long -converge_distance (const GNUNET_HashCode *target, - struct PeerInfo *peer, - unsigned int hops) +converge_distance (const GNUNET_HashCode * target, + struct PeerInfo *peer, unsigned int hops) { unsigned long long ret; unsigned int other_matching_bits; - double base_converge_modifier = .1; /* Value that "looks" good (when plotted), have to start somewhere */ + double base_converge_modifier = .1; /* Value that "looks" good (when plotted), have to start somewhere */ double temp_modifier; double calc_value; double exponent; @@ -2946,7 +3056,7 @@ converge_distance (const GNUNET_HashCode *target, if (use_max_hops) curr_max_hops = max_hops; else - curr_max_hops = (estimate_diameter() + 1) * 2; + curr_max_hops = (estimate_diameter () + 1) * 2; if (converge_modifier > 0) temp_modifier = converge_modifier * base_converge_modifier; @@ -2956,33 +3066,37 @@ converge_distance (const GNUNET_HashCode *target, base_converge_modifier = 0.0; } - GNUNET_assert(temp_modifier > 0); + GNUNET_assert (temp_modifier > 0); - other_matching_bits = GNUNET_CRYPTO_hash_matching_bits(target, &peer->id.hashPubKey); + other_matching_bits = + GNUNET_CRYPTO_hash_matching_bits (target, &peer->id.hashPubKey); switch (converge_option) { - case DHT_CONVERGE_RANDOM: - return 1; /* Always return 1, choose equally among all peers */ - case DHT_CONVERGE_LINEAR: - calc_value = hops * curr_max_hops * temp_modifier; - break; - case DHT_CONVERGE_SQUARE: + case DHT_CONVERGE_RANDOM: + return 1; /* Always return 1, choose equally among all peers */ + case DHT_CONVERGE_LINEAR: + calc_value = hops * curr_max_hops * temp_modifier; + break; + case DHT_CONVERGE_SQUARE: /** * Simple square based curve. */ - calc_value = (sqrt(hops) / sqrt(curr_max_hops)) * (curr_max_hops / (curr_max_hops * temp_modifier)); - break; - case DHT_CONVERGE_EXPONENTIAL: + calc_value = + (sqrt (hops) / sqrt (curr_max_hops)) * (curr_max_hops / + (curr_max_hops * + temp_modifier)); + break; + case DHT_CONVERGE_EXPONENTIAL: /** * Simple exponential curve. */ - if (base_converge_modifier > 0) - calc_value = (temp_modifier * hops * hops) / curr_max_hops; - else - calc_value = (hops * hops) / curr_max_hops; - break; - case DHT_CONVERGE_BINARY: + if (base_converge_modifier > 0) + calc_value = (temp_modifier * hops * hops) / curr_max_hops; + else + calc_value = (hops * hops) / curr_max_hops; + break; + case DHT_CONVERGE_BINARY: /** * If below the cutoff, route randomly (return 1), * If above the cutoff, return the maximum possible @@ -2990,17 +3104,17 @@ converge_distance (const GNUNET_HashCode *target, * they are sorted.) */ - if (hops >= converge_modifier) /* Past cutoff */ - { - return ULLONG_MAX; - } - /* Fall through */ - default: - return 1; + if (hops >= converge_modifier) /* Past cutoff */ + { + return ULLONG_MAX; + } + /* Fall through */ + default: + return 1; } /* Take the log (base e) of the number of bits matching the other peer */ - exponent = log(other_matching_bits); + exponent = log (other_matching_bits); /* Check if we would overflow; our largest possible value is 2^64 approx. e^44.361419555836498 */ if (exponent * calc_value >= 44.361419555836498) @@ -3008,17 +3122,17 @@ converge_distance (const GNUNET_HashCode *target, /* Clear errno and all math exceptions */ errno = 0; - feclearexcept(FE_ALL_EXCEPT); - ret = (unsigned long long)pow(other_matching_bits, calc_value); - if ((errno != 0) || fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | - FE_UNDERFLOW)) - { - if (0 != fetestexcept(FE_OVERFLOW)) - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "FE_OVERFLOW\n"); - if (0 != fetestexcept(FE_INVALID)) - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "FE_INVALID\n"); - if (0 != fetestexcept(FE_UNDERFLOW)) - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "FE_UNDERFLOW\n"); + feclearexcept (FE_ALL_EXCEPT); + ret = (unsigned long long) pow (other_matching_bits, calc_value); + if ((errno != 0) || fetestexcept (FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | + FE_UNDERFLOW)) + { + if (0 != fetestexcept (FE_OVERFLOW)) + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "FE_OVERFLOW\n"); + if (0 != fetestexcept (FE_INVALID)) + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "FE_INVALID\n"); + if (0 != fetestexcept (FE_UNDERFLOW)) + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "FE_UNDERFLOW\n"); return 0; } else @@ -3040,8 +3154,8 @@ converge_distance (const GNUNET_HashCode *target, static int compare_peers (const void *p1, const void *p2) { - struct PeerInfo **first = (struct PeerInfo **)p1; - struct PeerInfo **second = (struct PeerInfo **)p2; + struct PeerInfo **first = (struct PeerInfo **) p1; + struct PeerInfo **second = (struct PeerInfo **) p2; if ((*first)->matching_bits > (*second)->matching_bits) return -1; @@ -3090,12 +3204,14 @@ select_peer (const GNUNET_HashCode * target, unsigned int largest_distance; struct PeerInfo *chosen; - my_matching_bits = GNUNET_CRYPTO_hash_matching_bits(target, &my_identity.hashPubKey); + my_matching_bits = + GNUNET_CRYPTO_hash_matching_bits (target, &my_identity.hashPubKey); total_distance = 0; /** If we are doing kademlia routing, or converge is binary (saves some cycles) */ if ((strict_kademlia == GNUNET_YES) || - ((converge_option == DHT_CONVERGE_BINARY) && (hops >= converge_modifier))) + ((converge_option == DHT_CONVERGE_BINARY) + && (hops >= converge_modifier))) { largest_distance = 0; chosen = NULL; @@ -3106,7 +3222,9 @@ select_peer (const GNUNET_HashCode * target, while ((pos != NULL) && (count < bucket_size)) { /* If we are doing strict Kademlia routing, then checking the bloomfilter is basically cheating! */ - if (GNUNET_NO == GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) + if (GNUNET_NO == + GNUNET_CONTAINER_bloomfilter_test (bloom, + &pos->id.hashPubKey)) { distance = inverse_distance (target, &pos->id.hashPubKey); if (distance > largest_distance) @@ -3122,7 +3240,7 @@ select_peer (const GNUNET_HashCode * target, if ((largest_distance > 0) && (chosen != NULL)) { - GNUNET_CONTAINER_bloomfilter_add(bloom, &chosen->id.hashPubKey); + GNUNET_CONTAINER_bloomfilter_add (bloom, &chosen->id.hashPubKey); return chosen; } else @@ -3138,22 +3256,24 @@ select_peer (const GNUNET_HashCode * target, * Then go over all HIGHER buckets (matching less then we do) */ - closest_bucket = find_current_bucket(target); - GNUNET_assert(closest_bucket >= lowest_bucket); + closest_bucket = find_current_bucket (target); + GNUNET_assert (closest_bucket >= lowest_bucket); pos = k_buckets[closest_bucket].head; count = 0; - offset = 0; /* Need offset as well as count in case peers are bloomfiltered */ - memset(sorted_closest, 0, sizeof(sorted_closest)); + offset = 0; /* Need offset as well as count in case peers are bloomfiltered */ + memset (sorted_closest, 0, sizeof (sorted_closest)); /* Put any peers in the closest bucket in the sorting array */ while ((pos != NULL) && (count < bucket_size)) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) { count++; pos = pos->next; - continue; /* Ignore bloomfiltered peers */ + continue; /* Ignore bloomfiltered peers */ } - pos->matching_bits = GNUNET_CRYPTO_hash_matching_bits(&pos->id.hashPubKey, target); + pos->matching_bits = + GNUNET_CRYPTO_hash_matching_bits (&pos->id.hashPubKey, target); sorted_closest[offset] = pos; pos = pos->next; offset++; @@ -3161,18 +3281,23 @@ select_peer (const GNUNET_HashCode * target, } /* Sort the peers in descending order */ - qsort(&sorted_closest[0], offset, sizeof(struct PeerInfo *), &compare_peers); + qsort (&sorted_closest[0], offset, sizeof (struct PeerInfo *), + &compare_peers); /* Put the sorted closest peers into the possible bins first, in case of overflow. */ for (i = 0; i < offset; i++) { - temp_converge_distance = converge_distance(target, sorted_closest[i], hops); - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &sorted_closest[i]->id.hashPubKey)) - break; /* Ignore bloomfiltered peers */ + temp_converge_distance = + converge_distance (target, sorted_closest[i], hops); + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, + &sorted_closest[i]->id. + hashPubKey)) + break; /* Ignore bloomfiltered peers */ if ((temp_converge_distance <= ULLONG_MAX) && (total_distance + temp_converge_distance > total_distance)) /* Handle largest case and overflow */ total_distance += temp_converge_distance; else - break; /* overflow case */ + break; /* overflow case */ } /* Now handle peers in lower buckets (matches same # of bits as target) */ @@ -3182,17 +3307,18 @@ select_peer (const GNUNET_HashCode * target, count = 0; while ((pos != NULL) && (count < bucket_size)) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) { count++; pos = pos->next; - continue; /* Ignore bloomfiltered peers */ + continue; /* Ignore bloomfiltered peers */ } - temp_converge_distance = converge_distance(target, pos, hops); - if ((temp_converge_distance <= ULLONG_MAX) && (total_distance + temp_converge_distance > total_distance)) /* Handle largest case and overflow */ + temp_converge_distance = converge_distance (target, pos, hops); + if ((temp_converge_distance <= ULLONG_MAX) && (total_distance + temp_converge_distance > total_distance)) /* Handle largest case and overflow */ total_distance += temp_converge_distance; else - break; /* overflow case */ + break; /* overflow case */ pos = pos->next; count++; } @@ -3205,25 +3331,26 @@ select_peer (const GNUNET_HashCode * target, count = 0; while ((pos != NULL) && (count < bucket_size)) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) { count++; pos = pos->next; - continue; /* Ignore bloomfiltered peers */ + continue; /* Ignore bloomfiltered peers */ } - temp_converge_distance = converge_distance(target, pos, hops); - if ((temp_converge_distance <= ULLONG_MAX) && (total_distance + temp_converge_distance > total_distance)) /* Handle largest case and overflow */ + temp_converge_distance = converge_distance (target, pos, hops); + if ((temp_converge_distance <= ULLONG_MAX) && (total_distance + temp_converge_distance > total_distance)) /* Handle largest case and overflow */ total_distance += temp_converge_distance; else - break; /* overflow case */ + break; /* overflow case */ pos = pos->next; count++; } } - if (total_distance == 0) /* No peers to select from! */ + if (total_distance == 0) /* No peers to select from! */ { - increment_stats("# failed to select peer"); + increment_stats ("# failed to select peer"); return NULL; } @@ -3234,14 +3361,26 @@ select_peer (const GNUNET_HashCode * target, stats_total_distance = 0; for (i = 0; i < offset; i++) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &sorted_closest[i]->id.hashPubKey)) - break; /* Ignore bloomfiltered peers */ - temp_converge_distance = converge_distance(target, sorted_closest[i], hops); - if ((temp_converge_distance <= ULLONG_MAX) && (stats_total_distance + temp_converge_distance > stats_total_distance)) /* Handle largest case and overflow */ + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, + &sorted_closest[i]->id. + hashPubKey)) + break; /* Ignore bloomfiltered peers */ + temp_converge_distance = + converge_distance (target, sorted_closest[i], hops); + if ((temp_converge_distance <= ULLONG_MAX) && (stats_total_distance + temp_converge_distance > stats_total_distance)) /* Handle largest case and overflow */ stats_total_distance += temp_converge_distance; else - break; /* overflow case */ - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Choose %d matching bits (%d bits match me) (%.2f percent) converge ret %llu\n", GNUNET_CRYPTO_hash_matching_bits(&sorted_closest[i]->id.hashPubKey, target), GNUNET_CRYPTO_hash_matching_bits(&sorted_closest[i]->id.hashPubKey, &my_identity.hashPubKey), (temp_converge_distance / (double)total_distance) * 100, temp_converge_distance); + break; /* overflow case */ + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Choose %d matching bits (%d bits match me) (%.2f percent) converge ret %llu\n", + GNUNET_CRYPTO_hash_matching_bits (&sorted_closest[i]->id. + hashPubKey, target), + GNUNET_CRYPTO_hash_matching_bits (&sorted_closest[i]->id. + hashPubKey, + &my_identity.hashPubKey), + (temp_converge_distance / (double) total_distance) * 100, + temp_converge_distance); } /* Now handle peers in lower buckets (matches same # of bits as target) */ @@ -3251,18 +3390,27 @@ select_peer (const GNUNET_HashCode * target, count = 0; while ((pos != NULL) && (count < bucket_size)) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) { count++; pos = pos->next; - continue; /* Ignore bloomfiltered peers */ + continue; /* Ignore bloomfiltered peers */ } - temp_converge_distance = converge_distance(target, pos, hops); + temp_converge_distance = converge_distance (target, pos, hops); if ((temp_converge_distance <= ULLONG_MAX) && (stats_total_distance + temp_converge_distance > stats_total_distance)) /* Handle largest case and overflow */ stats_total_distance += temp_converge_distance; else - break; /* overflow case */ - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Choose %d matching bits (%d bits match me) (%.2f percent) converge ret %llu\n", GNUNET_CRYPTO_hash_matching_bits(&pos->id.hashPubKey, target), GNUNET_CRYPTO_hash_matching_bits(&pos->id.hashPubKey, &my_identity.hashPubKey), (temp_converge_distance / (double)total_distance) * 100, temp_converge_distance); + break; /* overflow case */ + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Choose %d matching bits (%d bits match me) (%.2f percent) converge ret %llu\n", + GNUNET_CRYPTO_hash_matching_bits (&pos->id.hashPubKey, + target), + GNUNET_CRYPTO_hash_matching_bits (&pos->id.hashPubKey, + &my_identity. + hashPubKey), + (temp_converge_distance / (double) total_distance) * + 100, temp_converge_distance); pos = pos->next; count++; } @@ -3275,18 +3423,27 @@ select_peer (const GNUNET_HashCode * target, count = 0; while ((pos != NULL) && (count < bucket_size)) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) { count++; pos = pos->next; - continue; /* Ignore bloomfiltered peers */ + continue; /* Ignore bloomfiltered peers */ } - temp_converge_distance = converge_distance(target, pos, hops); + temp_converge_distance = converge_distance (target, pos, hops); if ((temp_converge_distance <= ULLONG_MAX) && (stats_total_distance + temp_converge_distance > stats_total_distance)) /* Handle largest case and overflow */ stats_total_distance += temp_converge_distance; else - break; /* overflow case */ - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Choose %d matching bits (%d bits match me) (%.2f percent) converge ret %llu\n", GNUNET_CRYPTO_hash_matching_bits(&pos->id.hashPubKey, target), GNUNET_CRYPTO_hash_matching_bits(&pos->id.hashPubKey, &my_identity.hashPubKey), (temp_converge_distance / (double)total_distance) * 100, temp_converge_distance); + break; /* overflow case */ + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Choose %d matching bits (%d bits match me) (%.2f percent) converge ret %llu\n", + GNUNET_CRYPTO_hash_matching_bits (&pos->id.hashPubKey, + target), + GNUNET_CRYPTO_hash_matching_bits (&pos->id.hashPubKey, + &my_identity. + hashPubKey), + (temp_converge_distance / (double) total_distance) * + 100, temp_converge_distance); pos = pos->next; count++; } @@ -3295,14 +3452,19 @@ select_peer (const GNUNET_HashCode * target, #endif /* Now actually choose a peer */ - selected = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, total_distance); + selected = + GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, total_distance); /* Go over closest sorted peers. */ for (i = 0; i < offset; i++) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &sorted_closest[i]->id.hashPubKey)) - break; /* Ignore bloomfiltered peers */ - temp_converge_distance = converge_distance(target, sorted_closest[i], hops); + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, + &sorted_closest[i]->id. + hashPubKey)) + break; /* Ignore bloomfiltered peers */ + temp_converge_distance = + converge_distance (target, sorted_closest[i], hops); if (temp_converge_distance >= selected) return sorted_closest[i]; else @@ -3316,13 +3478,14 @@ select_peer (const GNUNET_HashCode * target, count = 0; while ((pos != NULL) && (count < bucket_size)) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) { count++; pos = pos->next; - continue; /* Ignore bloomfiltered peers */ + continue; /* Ignore bloomfiltered peers */ } - temp_converge_distance = converge_distance(target, pos, hops); + temp_converge_distance = converge_distance (target, pos, hops); if (temp_converge_distance >= selected) return pos; else @@ -3339,13 +3502,14 @@ select_peer (const GNUNET_HashCode * target, count = 0; while ((pos != NULL) && (count < bucket_size)) { - if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) + if (GNUNET_YES == + GNUNET_CONTAINER_bloomfilter_test (bloom, &pos->id.hashPubKey)) { count++; pos = pos->next; - continue; /* Ignore bloomfiltered peers */ + continue; /* Ignore bloomfiltered peers */ } - temp_converge_distance = converge_distance(target, pos, hops); + temp_converge_distance = converge_distance (target, pos, hops); if (temp_converge_distance >= selected) return pos; else @@ -3355,7 +3519,7 @@ select_peer (const GNUNET_HashCode * target, } } - increment_stats("# failed to select peer"); + increment_stats ("# failed to select peer"); return NULL; } @@ -3373,20 +3537,22 @@ remove_recent (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) struct RecentRequest *req = cls; static GNUNET_HashCode hash; - GNUNET_assert(req != NULL); - hash_from_uid(req->uid, &hash); - GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(recent.hashmap, &hash, req)); - GNUNET_CONTAINER_heap_remove_node(recent.minHeap, req->heap_node); - GNUNET_CONTAINER_bloomfilter_free(req->bloom); - GNUNET_free(req); + GNUNET_assert (req != NULL); + hash_from_uid (req->uid, &hash); + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove (recent.hashmap, &hash, + req)); + GNUNET_CONTAINER_heap_remove_node (recent.minHeap, req->heap_node); + GNUNET_CONTAINER_bloomfilter_free (req->bloom); + GNUNET_free (req); /* - if ((tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) && (0 == GNUNET_CONTAINER_multihashmap_size(recent.hashmap)) && (0 == GNUNET_CONTAINER_heap_get_size(recent.minHeap))) - { - GNUNET_CONTAINER_multihashmap_destroy(recent.hashmap); - GNUNET_CONTAINER_heap_destroy(recent.minHeap); - } - */ + if ((tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) && (0 == GNUNET_CONTAINER_multihashmap_size(recent.hashmap)) && (0 == GNUNET_CONTAINER_heap_get_size(recent.minHeap))) + { + GNUNET_CONTAINER_multihashmap_destroy(recent.hashmap); + GNUNET_CONTAINER_heap_destroy(recent.minHeap); + } + */ } /** @@ -3398,7 +3564,8 @@ remove_recent (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) * * @return GNUNET_YES if this response was cached, GNUNET_NO if not */ -static int cache_response(struct DHT_MessageContext *msg_ctx) +static int +cache_response (struct DHT_MessageContext *msg_ctx) { struct DHTQueryRecord *record; struct DHTRouteSource *source_info; @@ -3412,66 +3579,84 @@ static int cache_response(struct DHT_MessageContext *msg_ctx) while (current_size >= MAX_OUTSTANDING_FORWARDS) { source_info = GNUNET_CONTAINER_heap_remove_root (forward_list.minHeap); - GNUNET_assert(source_info != NULL); + GNUNET_assert (source_info != NULL); record = source_info->record; GNUNET_CONTAINER_DLL_remove (record->head, record->tail, source_info); if (record->head == NULL) /* No more entries in DLL */ { - GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(forward_list.hashmap, &record->key, record)); - GNUNET_free(record); + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove + (forward_list.hashmap, &record->key, record)); + GNUNET_free (record); } if (source_info->delete_task != GNUNET_SCHEDULER_NO_TASK) - GNUNET_SCHEDULER_cancel(source_info->delete_task); + GNUNET_SCHEDULER_cancel (source_info->delete_task); if (source_info->find_peers_responded != NULL) - GNUNET_CONTAINER_bloomfilter_free(source_info->find_peers_responded); - GNUNET_free(source_info); - current_size = GNUNET_CONTAINER_multihashmap_size(forward_list.hashmap); + GNUNET_CONTAINER_bloomfilter_free (source_info->find_peers_responded); + GNUNET_free (source_info); + current_size = + GNUNET_CONTAINER_multihashmap_size (forward_list.hashmap); } #endif /** Non-local request and have too many outstanding forwards, discard! */ if ((current_size >= MAX_OUTSTANDING_FORWARDS) && (msg_ctx->client == NULL)) return GNUNET_NO; - now = GNUNET_TIME_absolute_get(); - record = GNUNET_CONTAINER_multihashmap_get(forward_list.hashmap, &msg_ctx->key); - if (record != NULL) /* Already know this request! */ + now = GNUNET_TIME_absolute_get (); + record = + GNUNET_CONTAINER_multihashmap_get (forward_list.hashmap, &msg_ctx->key); + if (record != NULL) /* Already know this request! */ { pos = record->head; while (pos != NULL) { - if (0 == memcmp(msg_ctx->peer, &pos->source, sizeof(struct GNUNET_PeerIdentity))) - break; /* Already have this peer in reply list! */ + if (0 == + memcmp (msg_ctx->peer, &pos->source, + sizeof (struct GNUNET_PeerIdentity))) + break; /* Already have this peer in reply list! */ pos = pos->next; } - if ((pos != NULL) && (pos->client == msg_ctx->client)) /* Seen this already */ + if ((pos != NULL) && (pos->client == msg_ctx->client)) /* Seen this already */ { - GNUNET_CONTAINER_heap_update_cost(forward_list.minHeap, pos->hnode, now.abs_value); + GNUNET_CONTAINER_heap_update_cost (forward_list.minHeap, pos->hnode, + now.abs_value); return GNUNET_NO; } } else { - record = GNUNET_malloc(sizeof (struct DHTQueryRecord)); - GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(forward_list.hashmap, &msg_ctx->key, record, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); - memcpy(&record->key, &msg_ctx->key, sizeof(GNUNET_HashCode)); + record = GNUNET_malloc (sizeof (struct DHTQueryRecord)); + GNUNET_assert (GNUNET_OK == + GNUNET_CONTAINER_multihashmap_put (forward_list.hashmap, + &msg_ctx->key, record, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); + memcpy (&record->key, &msg_ctx->key, sizeof (GNUNET_HashCode)); } - source_info = GNUNET_malloc(sizeof(struct DHTRouteSource)); + source_info = GNUNET_malloc (sizeof (struct DHTRouteSource)); source_info->record = record; - source_info->delete_task = GNUNET_SCHEDULER_add_delayed (DHT_FORWARD_TIMEOUT, &remove_forward_entry, source_info); - source_info->find_peers_responded = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); - memcpy(&source_info->source, msg_ctx->peer, sizeof(struct GNUNET_PeerIdentity)); - GNUNET_CONTAINER_DLL_insert_after (record->head, record->tail, record->tail, source_info); - if (msg_ctx->client != NULL) /* For local request, set timeout so high it effectively never gets pushed out */ + source_info->delete_task = + GNUNET_SCHEDULER_add_delayed (DHT_FORWARD_TIMEOUT, &remove_forward_entry, + source_info); + source_info->find_peers_responded = + GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); + memcpy (&source_info->source, msg_ctx->peer, + sizeof (struct GNUNET_PeerIdentity)); + GNUNET_CONTAINER_DLL_insert_after (record->head, record->tail, record->tail, + source_info); + if (msg_ctx->client != NULL) /* For local request, set timeout so high it effectively never gets pushed out */ { source_info->client = msg_ctx->client; - now = GNUNET_TIME_absolute_get_forever(); + now = GNUNET_TIME_absolute_get_forever (); } - source_info->hnode = GNUNET_CONTAINER_heap_insert(forward_list.minHeap, source_info, now.abs_value); + source_info->hnode = + GNUNET_CONTAINER_heap_insert (forward_list.minHeap, source_info, + now.abs_value); #if DEBUG_DHT > 1 - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Created new forward source info for %s uid %llu\n", my_short_id, - "DHT", GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "`%s:%s': Created new forward source info for %s uid %llu\n", + my_short_id, "DHT", GNUNET_h2s (&msg_ctx->key), + msg_ctx->unique_id); #endif return GNUNET_YES; } @@ -3485,8 +3670,8 @@ static int cache_response(struct DHT_MessageContext *msg_ctx) * @param msg_ctx the context containing all pertinent information about the message */ static void -route_message(const struct GNUNET_MessageHeader *msg, - struct DHT_MessageContext *msg_ctx) +route_message (const struct GNUNET_MessageHeader *msg, + struct DHT_MessageContext *msg_ctx) { int i; struct PeerInfo *selected; @@ -3510,27 +3695,31 @@ route_message(const struct GNUNET_MessageHeader *msg, { dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, DHTLOG_ROUTE, msg_ctx->hop_count, GNUNET_SYSERR, - &my_identity, &msg_ctx->key, msg_ctx->peer, - NULL); + &my_identity, &msg_ctx->key, + msg_ctx->peer, NULL); } #endif if (msg_ctx->bloom != NULL) - { - GNUNET_CONTAINER_bloomfilter_free(msg_ctx->bloom); - msg_ctx->bloom = NULL; - } + { + GNUNET_CONTAINER_bloomfilter_free (msg_ctx->bloom); + msg_ctx->bloom = NULL; + } return; } - increment_stats(STAT_ROUTES); - target_forward_count = get_forward_count(msg_ctx->hop_count, msg_ctx->replication); - GNUNET_asprintf(&stat_forward_count, "# forward counts of %d", target_forward_count); - increment_stats(stat_forward_count); - GNUNET_free(stat_forward_count); + increment_stats (STAT_ROUTES); + target_forward_count = + get_forward_count (msg_ctx->hop_count, msg_ctx->replication); + GNUNET_asprintf (&stat_forward_count, "# forward counts of %d", + target_forward_count); + increment_stats (stat_forward_count); + GNUNET_free (stat_forward_count); if (msg_ctx->bloom == NULL) - msg_ctx->bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); + msg_ctx->bloom = + GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); - if ((stop_on_closest == GNUNET_YES) && (msg_ctx->closest == GNUNET_YES) && (ntohs(msg->type) == GNUNET_MESSAGE_TYPE_DHT_PUT)) + if ((stop_on_closest == GNUNET_YES) && (msg_ctx->closest == GNUNET_YES) + && (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_DHT_PUT)) target_forward_count = 0; /** @@ -3548,75 +3737,105 @@ route_message(const struct GNUNET_MessageHeader *msg, * testing driver) we will ignore this restriction for FIND_PEER messages so that * routing tables still get constructed. */ - if ((GNUNET_YES == strict_kademlia) && (msg_ctx->closest == GNUNET_YES) && (msg_ctx->hop_count > 0) && (ntohs(msg->type) != GNUNET_MESSAGE_TYPE_DHT_FIND_PEER)) + if ((GNUNET_YES == strict_kademlia) && (msg_ctx->closest == GNUNET_YES) + && (msg_ctx->hop_count > 0) + && (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_DHT_FIND_PEER)) target_forward_count = 0; GNUNET_CONTAINER_bloomfilter_add (msg_ctx->bloom, &my_identity.hashPubKey); hash_from_uid (msg_ctx->unique_id, &unique_hash); - if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains (recent.hashmap, &unique_hash)) - { - recent_req = GNUNET_CONTAINER_multihashmap_get(recent.hashmap, &unique_hash); - GNUNET_assert(recent_req != NULL); - if (0 != memcmp(&recent_req->key, &msg_ctx->key, sizeof(GNUNET_HashCode))) - increment_stats(STAT_DUPLICATE_UID); - else - { - increment_stats(STAT_RECENT_SEEN); - GNUNET_CONTAINER_bloomfilter_or2(msg_ctx->bloom, recent_req->bloom, DHT_BLOOM_SIZE); - } + if (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_contains (recent.hashmap, &unique_hash)) + { + recent_req = + GNUNET_CONTAINER_multihashmap_get (recent.hashmap, &unique_hash); + GNUNET_assert (recent_req != NULL); + if (0 != + memcmp (&recent_req->key, &msg_ctx->key, sizeof (GNUNET_HashCode))) + increment_stats (STAT_DUPLICATE_UID); + else + { + increment_stats (STAT_RECENT_SEEN); + GNUNET_CONTAINER_bloomfilter_or2 (msg_ctx->bloom, recent_req->bloom, + DHT_BLOOM_SIZE); + } } else { - recent_req = GNUNET_malloc(sizeof(struct RecentRequest)); + recent_req = GNUNET_malloc (sizeof (struct RecentRequest)); recent_req->uid = msg_ctx->unique_id; - memcpy(&recent_req->key, &msg_ctx->key, sizeof(GNUNET_HashCode)); - recent_req->remove_task = GNUNET_SCHEDULER_add_delayed(DEFAULT_RECENT_REMOVAL, &remove_recent, recent_req); - recent_req->heap_node = GNUNET_CONTAINER_heap_insert(recent.minHeap, recent_req, GNUNET_TIME_absolute_get().abs_value); - recent_req->bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); - GNUNET_CONTAINER_multihashmap_put(recent.hashmap, &unique_hash, recent_req, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY); + memcpy (&recent_req->key, &msg_ctx->key, sizeof (GNUNET_HashCode)); + recent_req->remove_task = + GNUNET_SCHEDULER_add_delayed (DEFAULT_RECENT_REMOVAL, &remove_recent, + recent_req); + recent_req->heap_node = + GNUNET_CONTAINER_heap_insert (recent.minHeap, recent_req, + GNUNET_TIME_absolute_get ().abs_value); + recent_req->bloom = + GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); + GNUNET_CONTAINER_multihashmap_put (recent.hashmap, &unique_hash, + recent_req, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY); } - if (GNUNET_CONTAINER_multihashmap_size(recent.hashmap) > DHT_MAX_RECENT) + if (GNUNET_CONTAINER_multihashmap_size (recent.hashmap) > DHT_MAX_RECENT) { - recent_req = GNUNET_CONTAINER_heap_peek(recent.minHeap); - GNUNET_assert(recent_req != NULL); - GNUNET_SCHEDULER_cancel(recent_req->remove_task); - GNUNET_SCHEDULER_add_now(&remove_recent, recent_req); + recent_req = GNUNET_CONTAINER_heap_peek (recent.minHeap); + GNUNET_assert (recent_req != NULL); + GNUNET_SCHEDULER_cancel (recent_req->remove_task); + GNUNET_SCHEDULER_add_now (&remove_recent, recent_req); } forward_count = 0; for (i = 0; i < target_forward_count; i++) { - selected = select_peer(&msg_ctx->key, msg_ctx->bloom, msg_ctx->hop_count); + selected = + select_peer (&msg_ctx->key, msg_ctx->bloom, msg_ctx->hop_count); if (selected != NULL) { forward_count++; - if (GNUNET_CRYPTO_hash_matching_bits(&selected->id.hashPubKey, &msg_ctx->key) >= GNUNET_CRYPTO_hash_matching_bits(&my_identity.hashPubKey, &msg_ctx->key)) - GNUNET_asprintf(&temp_stat_str, "# requests routed to close(r) peer hop %u", msg_ctx->hop_count); + if (GNUNET_CRYPTO_hash_matching_bits + (&selected->id.hashPubKey, + &msg_ctx->key) >= + GNUNET_CRYPTO_hash_matching_bits (&my_identity.hashPubKey, + &msg_ctx->key)) + GNUNET_asprintf (&temp_stat_str, + "# requests routed to close(r) peer hop %u", + msg_ctx->hop_count); else - GNUNET_asprintf(&temp_stat_str, "# requests routed to less close peer hop %u", msg_ctx->hop_count); + GNUNET_asprintf (&temp_stat_str, + "# requests routed to less close peer hop %u", + msg_ctx->hop_count); if (temp_stat_str != NULL) { - increment_stats(temp_stat_str); - GNUNET_free(temp_stat_str); + increment_stats (temp_stat_str); + GNUNET_free (temp_stat_str); } - GNUNET_CONTAINER_bloomfilter_add(msg_ctx->bloom, &selected->id.hashPubKey); + GNUNET_CONTAINER_bloomfilter_add (msg_ctx->bloom, + &selected->id.hashPubKey); #if DEBUG_DHT_ROUTING > 1 - nearest = find_closest_peer(&msg_ctx->key); - nearest_buf = GNUNET_strdup(GNUNET_i2s(&nearest->id)); + nearest = find_closest_peer (&msg_ctx->key); + nearest_buf = GNUNET_strdup (GNUNET_i2s (&nearest->id)); GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Forwarding request key %s uid %llu to peer %s (closest %s, bits %d, distance %u)\n", my_short_id, - "DHT", GNUNET_h2s (&msg_ctx->key), msg_ctx->unique_id, GNUNET_i2s(&selected->id), nearest_buf, GNUNET_CRYPTO_hash_matching_bits(&nearest->id.hashPubKey, msg_ctx->key), distance(&nearest->id.hashPubKey, msg_ctx->key)); - GNUNET_free(nearest_buf); + "`%s:%s': Forwarding request key %s uid %llu to peer %s (closest %s, bits %d, distance %u)\n", + my_short_id, "DHT", GNUNET_h2s (&msg_ctx->key), + msg_ctx->unique_id, GNUNET_i2s (&selected->id), + nearest_buf, + GNUNET_CRYPTO_hash_matching_bits (&nearest->id. + hashPubKey, + msg_ctx->key), + distance (&nearest->id.hashPubKey, msg_ctx->key)); + GNUNET_free (nearest_buf); #endif #if DEBUG_DHT_ROUTING if ((debug_routes_extended) && (dhtlog_handle != NULL)) { - dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, DHTLOG_ROUTE, - msg_ctx->hop_count, GNUNET_NO, - &my_identity, &msg_ctx->key, msg_ctx->peer, + dhtlog_handle->insert_route (NULL, msg_ctx->unique_id, + DHTLOG_ROUTE, msg_ctx->hop_count, + GNUNET_NO, &my_identity, + &msg_ctx->key, msg_ctx->peer, &selected->id); } #endif @@ -3626,8 +3845,9 @@ route_message(const struct GNUNET_MessageHeader *msg, if (msg_ctx->bloom != NULL) { - GNUNET_CONTAINER_bloomfilter_or2(recent_req->bloom, msg_ctx->bloom, DHT_BLOOM_SIZE); - GNUNET_CONTAINER_bloomfilter_free(msg_ctx->bloom); + GNUNET_CONTAINER_bloomfilter_or2 (recent_req->bloom, msg_ctx->bloom, + DHT_BLOOM_SIZE); + GNUNET_CONTAINER_bloomfilter_free (msg_ctx->bloom); msg_ctx->bloom = NULL; } @@ -3657,47 +3877,55 @@ route_message(const struct GNUNET_MessageHeader *msg, * @param msg_ctx the context containing all pertinent information about the message */ static void -demultiplex_message(const struct GNUNET_MessageHeader *msg, - struct DHT_MessageContext *msg_ctx) +demultiplex_message (const struct GNUNET_MessageHeader *msg, + struct DHT_MessageContext *msg_ctx) { /* FIXME: Should we use closest excluding those we won't route to (the bloomfilter problem)? */ - msg_ctx->closest = am_closest_peer(&msg_ctx->key, msg_ctx->bloom); - switch (ntohs(msg->type)) + msg_ctx->closest = am_closest_peer (&msg_ctx->key, msg_ctx->bloom); + switch (ntohs (msg->type)) { - case GNUNET_MESSAGE_TYPE_DHT_GET: /* Add to hashmap of requests seen, search for data (always) */ + case GNUNET_MESSAGE_TYPE_DHT_GET: /* Add to hashmap of requests seen, search for data (always) */ cache_response (msg_ctx); handle_dht_get (msg, msg_ctx); break; - case GNUNET_MESSAGE_TYPE_DHT_PUT: /* Check if closest, if so insert data. */ - increment_stats(STAT_PUTS); + case GNUNET_MESSAGE_TYPE_DHT_PUT: /* Check if closest, if so insert data. */ + increment_stats (STAT_PUTS); handle_dht_put (msg, msg_ctx); break; - case GNUNET_MESSAGE_TYPE_DHT_FIND_PEER: /* Check if closest and not started by us, check options, add to requests seen */ - increment_stats(STAT_FIND_PEER); - if (((msg_ctx->hop_count > 0) && (0 != memcmp(msg_ctx->peer, &my_identity, sizeof(struct GNUNET_PeerIdentity)))) || (msg_ctx->client != NULL)) - { - cache_response (msg_ctx); - if ((msg_ctx->closest == GNUNET_YES) || (msg_ctx->msg_options == GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE)) - handle_dht_find_peer (msg, msg_ctx); - } + case GNUNET_MESSAGE_TYPE_DHT_FIND_PEER: /* Check if closest and not started by us, check options, add to requests seen */ + increment_stats (STAT_FIND_PEER); + if (((msg_ctx->hop_count > 0) + && (0 != + memcmp (msg_ctx->peer, &my_identity, + sizeof (struct GNUNET_PeerIdentity)))) + || (msg_ctx->client != NULL)) + { + cache_response (msg_ctx); + if ((msg_ctx->closest == GNUNET_YES) + || (msg_ctx->msg_options == + GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE)) + handle_dht_find_peer (msg, msg_ctx); + } else route_message (msg, msg_ctx); #if DEBUG_DHT_ROUTING - if (msg_ctx->hop_count == 0) /* Locally initiated request */ + if (msg_ctx->hop_count == 0) /* Locally initiated request */ { if ((debug_routes) && (dhtlog_handle != NULL)) { - dhtlog_handle->insert_dhtkey(NULL, &msg_ctx->key); - dhtlog_handle->insert_query (NULL, msg_ctx->unique_id, DHTLOG_FIND_PEER, - msg_ctx->hop_count, GNUNET_NO, &my_identity, - &msg_ctx->key); + dhtlog_handle->insert_dhtkey (NULL, &msg_ctx->key); + dhtlog_handle->insert_query (NULL, msg_ctx->unique_id, + DHTLOG_FIND_PEER, + msg_ctx->hop_count, GNUNET_NO, + &my_identity, &msg_ctx->key); } } #endif break; default: GNUNET_log (GNUNET_ERROR_TYPE_WARNING, - "`%s': Message type (%d) not handled, forwarding anyway!\n", "DHT", ntohs(msg->type)); + "`%s': Message type (%d) not handled, forwarding anyway!\n", + "DHT", ntohs (msg->type)); route_message (msg, msg_ctx); } } @@ -3729,30 +3957,33 @@ republish_content_iterator (void *cls, struct GNUNET_DHT_PutMessage *put_msg; #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Received `%s' response from datacache\n", my_short_id, "DHT", "GET"); + "`%s:%s': Received `%s' response from datacache\n", my_short_id, + "DHT", "GET"); #endif - new_msg_ctx = GNUNET_malloc(sizeof(struct DHT_MessageContext)); + new_msg_ctx = GNUNET_malloc (sizeof (struct DHT_MessageContext)); - put_msg = - GNUNET_malloc (sizeof (struct GNUNET_DHT_PutMessage) + size); + put_msg = GNUNET_malloc (sizeof (struct GNUNET_DHT_PutMessage) + size); put_msg->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_PUT); put_msg->header.size = htons (sizeof (struct GNUNET_DHT_PutMessage) + size); - put_msg->expiration = GNUNET_TIME_absolute_hton(exp); + put_msg->expiration = GNUNET_TIME_absolute_hton (exp); put_msg->type = htons (type); memcpy (&put_msg[1], data, size); - new_msg_ctx->unique_id = GNUNET_ntohll (GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK, (uint64_t)-1)); + new_msg_ctx->unique_id = + GNUNET_ntohll (GNUNET_CRYPTO_random_u64 + (GNUNET_CRYPTO_QUALITY_WEAK, (uint64_t) - 1)); new_msg_ctx->replication = ntohl (DEFAULT_PUT_REPLICATION); new_msg_ctx->msg_options = ntohl (0); - new_msg_ctx->network_size = estimate_diameter(); + new_msg_ctx->network_size = estimate_diameter (); new_msg_ctx->peer = &my_identity; - new_msg_ctx->bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); + new_msg_ctx->bloom = + GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); new_msg_ctx->hop_count = 0; new_msg_ctx->importance = DHT_DEFAULT_P2P_IMPORTANCE; new_msg_ctx->timeout = DHT_DEFAULT_P2P_TIMEOUT; - increment_stats(STAT_PUT_START); - demultiplex_message(&put_msg->header, new_msg_ctx); + increment_stats (STAT_PUT_START); + demultiplex_message (&put_msg->header, new_msg_ctx); - GNUNET_free(new_msg_ctx); + GNUNET_free (new_msg_ctx); GNUNET_free (put_msg); return GNUNET_OK; } @@ -3764,7 +3995,7 @@ republish_content_iterator (void *cls, * @param tc runtime context for this task */ static void -republish_content(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +republish_content (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) { struct RepublishContext *put_context = cls; @@ -3772,16 +4003,19 @@ republish_content(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) { - GNUNET_free(put_context); + GNUNET_free (put_context); return; } - GNUNET_assert (datacache != NULL); /* If we have no datacache we never should have scheduled this! */ - results = GNUNET_DATACACHE_get(datacache, &put_context->key, put_context->type, &republish_content_iterator, NULL); - if (results == 0) /* Data must have expired */ - GNUNET_free(put_context); - else /* Reschedule task for next time period */ - GNUNET_SCHEDULER_add_delayed(dht_republish_frequency, &republish_content, put_context); + GNUNET_assert (datacache != NULL); /* If we have no datacache we never should have scheduled this! */ + results = + GNUNET_DATACACHE_get (datacache, &put_context->key, put_context->type, + &republish_content_iterator, NULL); + if (results == 0) /* Data must have expired */ + GNUNET_free (put_context); + else /* Reschedule task for next time period */ + GNUNET_SCHEDULER_add_delayed (dht_republish_frequency, &republish_content, + put_context); } @@ -3796,8 +4030,8 @@ republish_content(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) * iterate, * GNUNET_NO if not. */ -static int find_client_records (void *cls, - const GNUNET_HashCode * key, void *value) +static int +find_client_records (void *cls, const GNUNET_HashCode * key, void *value) { struct ClientList *client = cls; struct DHTQueryRecord *record = value; @@ -3811,19 +4045,21 @@ static int find_client_records (void *cls, } if (pos != NULL) { - GNUNET_CONTAINER_DLL_remove(record->head, record->tail, pos); - GNUNET_CONTAINER_heap_remove_node(forward_list.minHeap, pos->hnode); + GNUNET_CONTAINER_DLL_remove (record->head, record->tail, pos); + GNUNET_CONTAINER_heap_remove_node (forward_list.minHeap, pos->hnode); if (pos->delete_task != GNUNET_SCHEDULER_NO_TASK) - GNUNET_SCHEDULER_cancel(pos->delete_task); + GNUNET_SCHEDULER_cancel (pos->delete_task); if (pos->find_peers_responded != NULL) - GNUNET_CONTAINER_bloomfilter_free(pos->find_peers_responded); - GNUNET_free(pos); + GNUNET_CONTAINER_bloomfilter_free (pos->find_peers_responded); + GNUNET_free (pos); } - if (record->head == NULL) /* No more entries in DLL */ + if (record->head == NULL) /* No more entries in DLL */ { - GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(forward_list.hashmap, &record->key, record)); - GNUNET_free(record); + GNUNET_assert (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_remove + (forward_list.hashmap, &record->key, record)); + GNUNET_free (record); } return GNUNET_YES; } @@ -3836,8 +4072,8 @@ static int find_client_records (void *cls, * @param client identification of the client; NULL * for the last call when the server is destroyed */ -static void handle_client_disconnect (void *cls, - struct GNUNET_SERVER_Client* client) +static void +handle_client_disconnect (void *cls, struct GNUNET_SERVER_Client *client) { struct ClientList *pos = client_list; struct ClientList *prev; @@ -3864,15 +4100,18 @@ static void handle_client_disconnect (void *cls, if (found != NULL) { if (found->transmit_handle != NULL) - GNUNET_CONNECTION_notify_transmit_ready_cancel(found->transmit_handle); + GNUNET_CONNECTION_notify_transmit_ready_cancel + (found->transmit_handle); - while(NULL != (reply = found->pending_head)) + while (NULL != (reply = found->pending_head)) { - GNUNET_CONTAINER_DLL_remove(found->pending_head, found->pending_tail, reply); - GNUNET_free(reply); + GNUNET_CONTAINER_DLL_remove (found->pending_head, + found->pending_tail, reply); + GNUNET_free (reply); } - GNUNET_CONTAINER_multihashmap_iterate(forward_list.hashmap, &find_client_records, found); - GNUNET_free(found); + GNUNET_CONTAINER_multihashmap_iterate (forward_list.hashmap, + &find_client_records, found); + GNUNET_free (found); } } @@ -3921,29 +4160,38 @@ malicious_put_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) return; - put_message.header.size = htons(sizeof(struct GNUNET_DHT_PutMessage)); - put_message.header.type = htons(GNUNET_MESSAGE_TYPE_DHT_PUT); - put_message.type = htonl(GNUNET_BLOCK_DHT_MALICIOUS_MESSAGE_TYPE); - put_message.expiration = GNUNET_TIME_absolute_hton(GNUNET_TIME_absolute_get_forever()); - memset(&msg_ctx, 0, sizeof(struct DHT_MessageContext)); - random_key = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (uint32_t)-1); - GNUNET_CRYPTO_hash(&random_key, sizeof(uint32_t), &key); - memcpy(&msg_ctx.key, &key, sizeof(GNUNET_HashCode)); - msg_ctx.unique_id = GNUNET_ntohll (GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK, (uint64_t)-1)); + put_message.header.size = htons (sizeof (struct GNUNET_DHT_PutMessage)); + put_message.header.type = htons (GNUNET_MESSAGE_TYPE_DHT_PUT); + put_message.type = htonl (GNUNET_BLOCK_DHT_MALICIOUS_MESSAGE_TYPE); + put_message.expiration = + GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_forever ()); + memset (&msg_ctx, 0, sizeof (struct DHT_MessageContext)); + random_key = + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, (uint32_t) - 1); + GNUNET_CRYPTO_hash (&random_key, sizeof (uint32_t), &key); + memcpy (&msg_ctx.key, &key, sizeof (GNUNET_HashCode)); + msg_ctx.unique_id = + GNUNET_ntohll (GNUNET_CRYPTO_random_u64 + (GNUNET_CRYPTO_QUALITY_WEAK, (uint64_t) - 1)); msg_ctx.replication = ntohl (DHT_DEFAULT_FIND_PEER_REPLICATION); msg_ctx.msg_options = ntohl (0); - msg_ctx.network_size = estimate_diameter(); + msg_ctx.network_size = estimate_diameter (); msg_ctx.peer = &my_identity; msg_ctx.importance = DHT_DEFAULT_P2P_IMPORTANCE; msg_ctx.timeout = DHT_DEFAULT_P2P_TIMEOUT; #if DEBUG_DHT_ROUTING if (dhtlog_handle != NULL) - dhtlog_handle->insert_dhtkey(NULL, &key); + dhtlog_handle->insert_dhtkey (NULL, &key); #endif - increment_stats(STAT_PUT_START); - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s:%s Sending malicious PUT message with hash %s\n", my_short_id, "DHT", GNUNET_h2s(&key)); - demultiplex_message(&put_message.header, &msg_ctx); - GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, malicious_put_frequency), &malicious_put_task, NULL); + increment_stats (STAT_PUT_START); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Sending malicious PUT message with hash %s\n", + my_short_id, "DHT", GNUNET_h2s (&key)); + demultiplex_message (&put_message.header, &msg_ctx); + GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_MILLISECONDS, + malicious_put_frequency), + &malicious_put_task, NULL); } @@ -3964,28 +4212,36 @@ malicious_get_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) return; - get_message.header.size = htons(sizeof(struct GNUNET_DHT_GetMessage)); - get_message.header.type = htons(GNUNET_MESSAGE_TYPE_DHT_GET); - get_message.type = htonl(GNUNET_BLOCK_DHT_MALICIOUS_MESSAGE_TYPE); - memset(&msg_ctx, 0, sizeof(struct DHT_MessageContext)); - random_key = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (uint32_t)-1); - GNUNET_CRYPTO_hash(&random_key, sizeof(uint32_t), &key); - memcpy(&msg_ctx.key, &key, sizeof(GNUNET_HashCode)); - msg_ctx.unique_id = GNUNET_ntohll (GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK, (uint64_t)-1)); + get_message.header.size = htons (sizeof (struct GNUNET_DHT_GetMessage)); + get_message.header.type = htons (GNUNET_MESSAGE_TYPE_DHT_GET); + get_message.type = htonl (GNUNET_BLOCK_DHT_MALICIOUS_MESSAGE_TYPE); + memset (&msg_ctx, 0, sizeof (struct DHT_MessageContext)); + random_key = + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, (uint32_t) - 1); + GNUNET_CRYPTO_hash (&random_key, sizeof (uint32_t), &key); + memcpy (&msg_ctx.key, &key, sizeof (GNUNET_HashCode)); + msg_ctx.unique_id = + GNUNET_ntohll (GNUNET_CRYPTO_random_u64 + (GNUNET_CRYPTO_QUALITY_WEAK, (uint64_t) - 1)); msg_ctx.replication = ntohl (DHT_DEFAULT_FIND_PEER_REPLICATION); msg_ctx.msg_options = ntohl (0); - msg_ctx.network_size = estimate_diameter(); + msg_ctx.network_size = estimate_diameter (); msg_ctx.peer = &my_identity; msg_ctx.importance = DHT_DEFAULT_P2P_IMPORTANCE; msg_ctx.timeout = DHT_DEFAULT_P2P_TIMEOUT; #if DEBUG_DHT_ROUTING if (dhtlog_handle != NULL) - dhtlog_handle->insert_dhtkey(NULL, &key); + dhtlog_handle->insert_dhtkey (NULL, &key); #endif - increment_stats(STAT_GET_START); - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s:%s Sending malicious GET message with hash %s\n", my_short_id, "DHT", GNUNET_h2s(&key)); + increment_stats (STAT_GET_START); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Sending malicious GET message with hash %s\n", + my_short_id, "DHT", GNUNET_h2s (&key)); demultiplex_message (&get_message.header, &msg_ctx); - GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, malicious_get_frequency), &malicious_get_task, NULL); + GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply + (GNUNET_TIME_UNIT_MILLISECONDS, + malicious_get_frequency), + &malicious_get_task, NULL); } #endif @@ -4001,9 +4257,7 @@ malicious_get_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) * GNUNET_NO if not. */ static int -add_known_to_bloom (void *cls, - const GNUNET_HashCode * key, - void *value) +add_known_to_bloom (void *cls, const GNUNET_HashCode * key, void *value) { struct GNUNET_CONTAINER_BloomFilter *bloom = cls; GNUNET_CONTAINER_bloomfilter_add (bloom, key); @@ -4019,7 +4273,8 @@ add_known_to_bloom (void *cls, * @param tc the context under which the task is running */ static void -send_find_peer_message (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) +send_find_peer_message (void *cls, + const struct GNUNET_SCHEDULER_TaskContext *tc) { struct GNUNET_DHT_FindPeerMessage *find_peer_msg; struct DHT_MessageContext msg_ctx; @@ -4034,19 +4289,22 @@ send_find_peer_message (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) return; - if ((newly_found_peers > bucket_size) && (GNUNET_YES == do_find_peer)) /* If we are finding peers already, no need to send out our request right now! */ + if ((newly_found_peers > bucket_size) && (GNUNET_YES == do_find_peer)) /* If we are finding peers already, no need to send out our request right now! */ { - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Have %d newly found peers since last find peer message sent!\n", newly_found_peers); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Have %d newly found peers since last find peer message sent!\n", + newly_found_peers); GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES, &send_find_peer_message, NULL); newly_found_peers = 0; return; } - - increment_stats(STAT_FIND_PEER_START); + + increment_stats (STAT_FIND_PEER_START); #if COUNT_INTERVAL - end = GNUNET_TIME_absolute_get(); - time_diff = GNUNET_TIME_absolute_get_difference(find_peer_context.start, end); + end = GNUNET_TIME_absolute_get (); + time_diff = + GNUNET_TIME_absolute_get_difference (find_peer_context.start, end); if (time_diff.abs_value > FIND_PEER_CALC_INTERVAL.abs_value) { @@ -4061,55 +4319,73 @@ send_find_peer_message (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc #endif #if FIND_PEER_WITH_HELLO - find_peer_msg = GNUNET_malloc(sizeof(struct GNUNET_DHT_FindPeerMessage) + GNUNET_HELLO_size((struct GNUNET_HELLO_Message *)my_hello)); - find_peer_msg->header.size = htons(sizeof(struct GNUNET_DHT_FindPeerMessage) + GNUNET_HELLO_size((struct GNUNET_HELLO_Message *)my_hello)); - memcpy(&find_peer_msg[1], my_hello, GNUNET_HELLO_size((struct GNUNET_HELLO_Message *)my_hello)); + find_peer_msg = + GNUNET_malloc (sizeof (struct GNUNET_DHT_FindPeerMessage) + + GNUNET_HELLO_size ((struct GNUNET_HELLO_Message *) + my_hello)); + find_peer_msg->header.size = + htons (sizeof (struct GNUNET_DHT_FindPeerMessage) + + GNUNET_HELLO_size ((struct GNUNET_HELLO_Message *) my_hello)); + memcpy (&find_peer_msg[1], my_hello, + GNUNET_HELLO_size ((struct GNUNET_HELLO_Message *) my_hello)); #else - find_peer_msg = GNUNET_malloc(sizeof(struct GNUNET_DHT_FindPeerMessage)); - find_peer_msg->header.size = htons(sizeof(struct GNUNET_DHT_FindPeerMessage)); + find_peer_msg = GNUNET_malloc (sizeof (struct GNUNET_DHT_FindPeerMessage)); + find_peer_msg->header.size = + htons (sizeof (struct GNUNET_DHT_FindPeerMessage)); #endif - find_peer_msg->header.type = htons(GNUNET_MESSAGE_TYPE_DHT_FIND_PEER); - temp_bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); - GNUNET_CONTAINER_multihashmap_iterate(all_known_peers, &add_known_to_bloom, temp_bloom); - GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_bloomfilter_get_raw_data(temp_bloom, find_peer_msg->bloomfilter, DHT_BLOOM_SIZE)); + find_peer_msg->header.type = htons (GNUNET_MESSAGE_TYPE_DHT_FIND_PEER); + temp_bloom = + GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K); + GNUNET_CONTAINER_multihashmap_iterate (all_known_peers, &add_known_to_bloom, + temp_bloom); + GNUNET_assert (GNUNET_OK == + GNUNET_CONTAINER_bloomfilter_get_raw_data (temp_bloom, + find_peer_msg-> + bloomfilter, + DHT_BLOOM_SIZE)); GNUNET_CONTAINER_bloomfilter_free (temp_bloom); - memset(&msg_ctx, 0, sizeof(struct DHT_MessageContext)); - memcpy(&msg_ctx.key, &my_identity.hashPubKey, sizeof(GNUNET_HashCode)); - msg_ctx.unique_id = GNUNET_ntohll (GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_STRONG, (uint64_t)-1)); + memset (&msg_ctx, 0, sizeof (struct DHT_MessageContext)); + memcpy (&msg_ctx.key, &my_identity.hashPubKey, sizeof (GNUNET_HashCode)); + msg_ctx.unique_id = + GNUNET_ntohll (GNUNET_CRYPTO_random_u64 + (GNUNET_CRYPTO_QUALITY_STRONG, (uint64_t) - 1)); msg_ctx.replication = DHT_DEFAULT_FIND_PEER_REPLICATION; msg_ctx.msg_options = DHT_DEFAULT_FIND_PEER_OPTIONS; - msg_ctx.network_size = estimate_diameter(); + msg_ctx.network_size = estimate_diameter (); msg_ctx.peer = &my_identity; msg_ctx.importance = DHT_DEFAULT_FIND_PEER_IMPORTANCE; msg_ctx.timeout = DHT_DEFAULT_FIND_PEER_TIMEOUT; - demultiplex_message(&find_peer_msg->header, &msg_ctx); - GNUNET_free(find_peer_msg); + demultiplex_message (&find_peer_msg->header, &msg_ctx); + GNUNET_free (find_peer_msg); GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Sent `%s' request to some (?) peers\n", my_short_id, "DHT", - "FIND PEER"); + "`%s:%s': Sent `%s' request to some (?) peers\n", my_short_id, + "DHT", "FIND PEER"); if (newly_found_peers < bucket_size) { - next_send_time.rel_value = (DHT_MAXIMUM_FIND_PEER_INTERVAL.rel_value / 2) + - GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_STRONG, - DHT_MAXIMUM_FIND_PEER_INTERVAL.rel_value / 2); + next_send_time.rel_value = + (DHT_MAXIMUM_FIND_PEER_INTERVAL.rel_value / 2) + + GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_STRONG, + DHT_MAXIMUM_FIND_PEER_INTERVAL.rel_value / + 2); } else { next_send_time.rel_value = DHT_MINIMUM_FIND_PEER_INTERVAL.rel_value + - GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_STRONG, - DHT_MAXIMUM_FIND_PEER_INTERVAL.rel_value - DHT_MINIMUM_FIND_PEER_INTERVAL.rel_value); + GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_STRONG, + DHT_MAXIMUM_FIND_PEER_INTERVAL.rel_value - + DHT_MINIMUM_FIND_PEER_INTERVAL.rel_value); } GNUNET_assert (next_send_time.rel_value != 0); find_peer_context.count = 0; newly_found_peers = 0; - find_peer_context.start = GNUNET_TIME_absolute_get(); + find_peer_context.start = GNUNET_TIME_absolute_get (); if (GNUNET_YES == do_find_peer) - { - GNUNET_SCHEDULER_add_delayed (next_send_time, - &send_find_peer_message, NULL); - } + { + GNUNET_SCHEDULER_add_delayed (next_send_time, + &send_find_peer_message, NULL); + } } /** @@ -4122,10 +4398,12 @@ send_find_peer_message (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc * @param message the actual message received */ static void -handle_dht_local_route_request (void *cls, struct GNUNET_SERVER_Client *client, +handle_dht_local_route_request (void *cls, + struct GNUNET_SERVER_Client *client, const struct GNUNET_MessageHeader *message) { - const struct GNUNET_DHT_RouteMessage *dht_msg = (const struct GNUNET_DHT_RouteMessage *) message; + const struct GNUNET_DHT_RouteMessage *dht_msg = + (const struct GNUNET_DHT_RouteMessage *) message; const struct GNUNET_MessageHeader *enc_msg; struct DHT_MessageContext msg_ctx; @@ -4133,56 +4411,57 @@ handle_dht_local_route_request (void *cls, struct GNUNET_SERVER_Client *client, #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s:%s': Received `%s' request from client, message type %d, key %s, uid %llu\n", - my_short_id, - "DHT", - "GENERIC", - ntohs (message->type), - GNUNET_h2s (&dht_msg->key), - GNUNET_ntohll (dht_msg->unique_id)); + my_short_id, + "DHT", + "GENERIC", + ntohs (message->type), + GNUNET_h2s (&dht_msg->key), GNUNET_ntohll (dht_msg->unique_id)); #endif #if DEBUG_DHT_ROUTING if (dhtlog_handle != NULL) dhtlog_handle->insert_dhtkey (NULL, &dht_msg->key); #endif - memset(&msg_ctx, 0, sizeof(struct DHT_MessageContext)); + memset (&msg_ctx, 0, sizeof (struct DHT_MessageContext)); msg_ctx.client = find_active_client (client); - memcpy(&msg_ctx.key, &dht_msg->key, sizeof(GNUNET_HashCode)); + memcpy (&msg_ctx.key, &dht_msg->key, sizeof (GNUNET_HashCode)); msg_ctx.unique_id = GNUNET_ntohll (dht_msg->unique_id); msg_ctx.replication = ntohl (dht_msg->desired_replication_level); msg_ctx.msg_options = ntohl (dht_msg->options); - msg_ctx.network_size = estimate_diameter(); + msg_ctx.network_size = estimate_diameter (); msg_ctx.peer = &my_identity; - msg_ctx.importance = DHT_DEFAULT_P2P_IMPORTANCE + 4; /* Make local routing a higher priority */ + msg_ctx.importance = DHT_DEFAULT_P2P_IMPORTANCE + 4; /* Make local routing a higher priority */ msg_ctx.timeout = DHT_DEFAULT_P2P_TIMEOUT; - if (ntohs(enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_GET) - increment_stats(STAT_GET_START); - else if (ntohs(enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_PUT) - increment_stats(STAT_PUT_START); - else if (ntohs(enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_FIND_PEER) - increment_stats(STAT_FIND_PEER_START); + if (ntohs (enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_GET) + increment_stats (STAT_GET_START); + else if (ntohs (enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_PUT) + increment_stats (STAT_PUT_START); + else if (ntohs (enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_FIND_PEER) + increment_stats (STAT_FIND_PEER_START); if (GNUNET_YES == malicious_dropper) { - if (ntohs(enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_GET) + if (ntohs (enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_GET) { #if DEBUG_DHT_ROUTING if ((debug_routes) && (dhtlog_handle != NULL)) { - dhtlog_handle->insert_query (NULL, msg_ctx.unique_id, DHTLOG_GET, - msg_ctx.hop_count, GNUNET_NO, &my_identity, - &msg_ctx.key); + dhtlog_handle->insert_query (NULL, msg_ctx.unique_id, + DHTLOG_GET, msg_ctx.hop_count, + GNUNET_NO, &my_identity, + &msg_ctx.key); } #endif } - else if (ntohs(enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_PUT) + else if (ntohs (enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_PUT) { #if DEBUG_DHT_ROUTING if ((debug_routes) && (dhtlog_handle != NULL)) { - dhtlog_handle->insert_query (NULL, msg_ctx.unique_id, DHTLOG_PUT, - msg_ctx.hop_count, GNUNET_NO, &my_identity, + dhtlog_handle->insert_query (NULL, msg_ctx.unique_id, + DHTLOG_PUT, msg_ctx.hop_count, + GNUNET_NO, &my_identity, &msg_ctx.key); } #endif @@ -4191,7 +4470,7 @@ handle_dht_local_route_request (void *cls, struct GNUNET_SERVER_Client *client, return; } - demultiplex_message(enc_msg, &msg_ctx); + demultiplex_message (enc_msg, &msg_ctx); GNUNET_SERVER_receive_done (client, GNUNET_OK); } @@ -4210,59 +4489,63 @@ handle_dht_control_message (void *cls, struct GNUNET_SERVER_Client *client, const struct GNUNET_MessageHeader *message) { const struct GNUNET_DHT_ControlMessage *dht_control_msg = - (const struct GNUNET_DHT_ControlMessage *) message; + (const struct GNUNET_DHT_ControlMessage *) message; #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Received `%s' request from client, command %d\n", my_short_id, "DHT", - "CONTROL", ntohs(dht_control_msg->command)); + "`%s:%s': Received `%s' request from client, command %d\n", + my_short_id, "DHT", "CONTROL", + ntohs (dht_control_msg->command)); #endif - switch (ntohs(dht_control_msg->command)) - { - case GNUNET_MESSAGE_TYPE_DHT_FIND_PEER: - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Sending self seeking find peer request!\n"); - GNUNET_SCHEDULER_add_now(&send_find_peer_message, NULL); - break; + switch (ntohs (dht_control_msg->command)) + { + case GNUNET_MESSAGE_TYPE_DHT_FIND_PEER: + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Sending self seeking find peer request!\n"); + GNUNET_SCHEDULER_add_now (&send_find_peer_message, NULL); + break; #if HAVE_MALICIOUS - case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET: - if (ntohs(dht_control_msg->variable) > 0) - malicious_get_frequency = ntohs(dht_control_msg->variable); - if (malicious_get_frequency == 0) - malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY; - if (malicious_getter != GNUNET_YES) - GNUNET_SCHEDULER_add_now(&malicious_get_task, NULL); - malicious_getter = GNUNET_YES; - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, - "%s:%s Initiating malicious GET behavior, frequency %d\n", my_short_id, "DHT", malicious_get_frequency); - break; - case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT: - if (ntohs(dht_control_msg->variable) > 0) - malicious_put_frequency = ntohs(dht_control_msg->variable); - if (malicious_put_frequency == 0) - malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY; - if (malicious_putter != GNUNET_YES) - GNUNET_SCHEDULER_add_now(&malicious_put_task, NULL); - malicious_putter = GNUNET_YES; - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, - "%s:%s Initiating malicious PUT behavior, frequency %d\n", my_short_id, "DHT", malicious_put_frequency); - break; - case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP: + case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET: + if (ntohs (dht_control_msg->variable) > 0) + malicious_get_frequency = ntohs (dht_control_msg->variable); + if (malicious_get_frequency == 0) + malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY; + if (malicious_getter != GNUNET_YES) + GNUNET_SCHEDULER_add_now (&malicious_get_task, NULL); + malicious_getter = GNUNET_YES; + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Initiating malicious GET behavior, frequency %d\n", + my_short_id, "DHT", malicious_get_frequency); + break; + case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT: + if (ntohs (dht_control_msg->variable) > 0) + malicious_put_frequency = ntohs (dht_control_msg->variable); + if (malicious_put_frequency == 0) + malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY; + if (malicious_putter != GNUNET_YES) + GNUNET_SCHEDULER_add_now (&malicious_put_task, NULL); + malicious_putter = GNUNET_YES; + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Initiating malicious PUT behavior, frequency %d\n", + my_short_id, "DHT", malicious_put_frequency); + break; + case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP: #if DEBUG_DHT_ROUTING - if ((malicious_dropper != GNUNET_YES) && (dhtlog_handle != NULL)) - dhtlog_handle->set_malicious(&my_identity); + if ((malicious_dropper != GNUNET_YES) && (dhtlog_handle != NULL)) + dhtlog_handle->set_malicious (&my_identity); #endif - malicious_dropper = GNUNET_YES; - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, - "%s:%s Initiating malicious DROP behavior\n", my_short_id, "DHT"); - break; + malicious_dropper = GNUNET_YES; + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "%s:%s Initiating malicious DROP behavior\n", my_short_id, + "DHT"); + break; #endif - default: - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, - "%s:%s Unknown control command type `%d'!\n", - my_short_id, "DHT", - ntohs(dht_control_msg->command)); - break; - } + default: + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "%s:%s Unknown control command type `%d'!\n", + my_short_id, "DHT", ntohs (dht_control_msg->command)); + break; + } GNUNET_SERVER_receive_done (client, GNUNET_OK); } @@ -4277,8 +4560,8 @@ handle_dht_control_message (void *cls, struct GNUNET_SERVER_Client *client, * */ static void -handle_dht_local_route_stop(void *cls, struct GNUNET_SERVER_Client *client, - const struct GNUNET_MessageHeader *message) +handle_dht_local_route_stop (void *cls, struct GNUNET_SERVER_Client *client, + const struct GNUNET_MessageHeader *message) { const struct GNUNET_DHT_StopMessage *dht_stop_msg = @@ -4287,10 +4570,13 @@ handle_dht_local_route_stop(void *cls, struct GNUNET_SERVER_Client *client, struct DHTRouteSource *pos; #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Received `%s' request from client, uid %llu\n", my_short_id, "DHT", - "GENERIC STOP", GNUNET_ntohll (dht_stop_msg->unique_id)); + "`%s:%s': Received `%s' request from client, uid %llu\n", + my_short_id, "DHT", "GENERIC STOP", + GNUNET_ntohll (dht_stop_msg->unique_id)); #endif - record = GNUNET_CONTAINER_multihashmap_get (forward_list.hashmap, &dht_stop_msg->key); + record = + GNUNET_CONTAINER_multihashmap_get (forward_list.hashmap, + &dht_stop_msg->key); if (record != NULL) { pos = record->head; @@ -4300,9 +4586,10 @@ handle_dht_local_route_stop(void *cls, struct GNUNET_SERVER_Client *client, /* If the client is non-null (local request) and the client matches the requesting client, remove the entry. */ if ((pos->client != NULL) && (pos->client->client_handle == client)) { - GNUNET_SCHEDULER_cancel(pos->delete_task); + GNUNET_SCHEDULER_cancel (pos->delete_task); pos->delete_task = GNUNET_SCHEDULER_NO_TASK; - GNUNET_SCHEDULER_add_continuation (&remove_forward_entry, pos, GNUNET_SCHEDULER_REASON_PREREQ_DONE); + GNUNET_SCHEDULER_add_continuation (&remove_forward_entry, pos, + GNUNET_SCHEDULER_REASON_PREREQ_DONE); } pos = pos->next; } @@ -4317,29 +4604,34 @@ handle_dht_local_route_stop(void *cls, struct GNUNET_SERVER_Client *client, */ static int handle_dht_p2p_route_request (void *cls, - const struct GNUNET_PeerIdentity *peer, - const struct GNUNET_MessageHeader *message, - const struct GNUNET_TRANSPORT_ATS_Information *atsi) + const struct GNUNET_PeerIdentity *peer, + const struct GNUNET_MessageHeader *message, + const struct GNUNET_TRANSPORT_ATS_Information + *atsi) { #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Received P2P request from peer %s\n", my_short_id, "DHT", GNUNET_i2s(peer)); + "`%s:%s': Received P2P request from peer %s\n", my_short_id, + "DHT", GNUNET_i2s (peer)); #endif - struct GNUNET_DHT_P2PRouteMessage *incoming = (struct GNUNET_DHT_P2PRouteMessage *)message; - struct GNUNET_MessageHeader *enc_msg = (struct GNUNET_MessageHeader *)&incoming[1]; + struct GNUNET_DHT_P2PRouteMessage *incoming = + (struct GNUNET_DHT_P2PRouteMessage *) message; + struct GNUNET_MessageHeader *enc_msg = + (struct GNUNET_MessageHeader *) &incoming[1]; struct DHT_MessageContext *msg_ctx; - if (ntohs(enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_P2P_PING) /* Throw these away. FIXME: Don't throw these away? (reply)*/ + if (ntohs (enc_msg->type) == GNUNET_MESSAGE_TYPE_DHT_P2P_PING) /* Throw these away. FIXME: Don't throw these away? (reply) */ { #if DEBUG_PING - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s:%s Received P2P Ping message.\n", my_short_id, "DHT"); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Received P2P Ping message.\n", my_short_id, "DHT"); #endif return GNUNET_YES; } - if (ntohs(enc_msg->size) >= GNUNET_SERVER_MAX_MESSAGE_SIZE - 1) + if (ntohs (enc_msg->size) >= GNUNET_SERVER_MAX_MESSAGE_SIZE - 1) { - GNUNET_break_op(0); + GNUNET_break_op (0); return GNUNET_YES; } @@ -4349,51 +4641,58 @@ handle_dht_p2p_route_request (void *cls, if ((debug_routes_extended) && (dhtlog_handle != NULL)) { /** Log routes that die due to high load! */ - dhtlog_handle->insert_route (NULL, GNUNET_ntohll(incoming->unique_id), DHTLOG_ROUTE, - ntohl(incoming->hop_count), GNUNET_SYSERR, - &my_identity, &incoming->key, peer, - NULL); + dhtlog_handle->insert_route (NULL, + GNUNET_ntohll (incoming->unique_id), + DHTLOG_ROUTE, + ntohl (incoming->hop_count), + GNUNET_SYSERR, &my_identity, + &incoming->key, peer, NULL); } #endif return GNUNET_YES; } - if (get_max_send_delay().rel_value > MAX_REQUEST_TIME.rel_value) - { - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Sending of previous replies took too long, backing off!\n"); - increment_stats("# route requests dropped due to high load"); - decrease_max_send_delay(get_max_send_delay()); + if (get_max_send_delay ().rel_value > MAX_REQUEST_TIME.rel_value) + { + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Sending of previous replies took too long, backing off!\n"); + increment_stats ("# route requests dropped due to high load"); + decrease_max_send_delay (get_max_send_delay ()); #if DEBUG_DHT_ROUTING - if ((debug_routes_extended) && (dhtlog_handle != NULL)) - { + if ((debug_routes_extended) && (dhtlog_handle != NULL)) + { /** Log routes that die due to high load! */ - dhtlog_handle->insert_route (NULL, GNUNET_ntohll(incoming->unique_id), DHTLOG_ROUTE, - ntohl(incoming->hop_count), GNUNET_SYSERR, - &my_identity, &incoming->key, peer, - NULL); - } + dhtlog_handle->insert_route (NULL, + GNUNET_ntohll (incoming->unique_id), + DHTLOG_ROUTE, + ntohl (incoming->hop_count), + GNUNET_SYSERR, &my_identity, + &incoming->key, peer, NULL); + } #endif - return GNUNET_YES; - } - msg_ctx = GNUNET_malloc(sizeof (struct DHT_MessageContext)); - msg_ctx->bloom = GNUNET_CONTAINER_bloomfilter_init(incoming->bloomfilter, DHT_BLOOM_SIZE, DHT_BLOOM_K); - GNUNET_assert(msg_ctx->bloom != NULL); - msg_ctx->hop_count = ntohl(incoming->hop_count); - memcpy(&msg_ctx->key, &incoming->key, sizeof(GNUNET_HashCode)); - msg_ctx->replication = ntohl(incoming->desired_replication_level); - msg_ctx->unique_id = GNUNET_ntohll(incoming->unique_id); - msg_ctx->msg_options = ntohl(incoming->options); - msg_ctx->network_size = ntohl(incoming->network_size); + return GNUNET_YES; + } + msg_ctx = GNUNET_malloc (sizeof (struct DHT_MessageContext)); + msg_ctx->bloom = + GNUNET_CONTAINER_bloomfilter_init (incoming->bloomfilter, DHT_BLOOM_SIZE, + DHT_BLOOM_K); + GNUNET_assert (msg_ctx->bloom != NULL); + msg_ctx->hop_count = ntohl (incoming->hop_count); + memcpy (&msg_ctx->key, &incoming->key, sizeof (GNUNET_HashCode)); + msg_ctx->replication = ntohl (incoming->desired_replication_level); + msg_ctx->unique_id = GNUNET_ntohll (incoming->unique_id); + msg_ctx->msg_options = ntohl (incoming->options); + msg_ctx->network_size = ntohl (incoming->network_size); msg_ctx->peer = peer; msg_ctx->importance = DHT_DEFAULT_P2P_IMPORTANCE; msg_ctx->timeout = DHT_DEFAULT_P2P_TIMEOUT; demultiplex_message (enc_msg, msg_ctx); if (msg_ctx->bloom != NULL) - { - GNUNET_CONTAINER_bloomfilter_free (msg_ctx->bloom); - msg_ctx->bloom = NULL; - } - GNUNET_free(msg_ctx); + { + GNUNET_CONTAINER_bloomfilter_free (msg_ctx->bloom); + msg_ctx->bloom = NULL; + } + GNUNET_free (msg_ctx); return GNUNET_YES; } @@ -4403,21 +4702,25 @@ handle_dht_p2p_route_request (void *cls, */ static int handle_dht_p2p_route_result (void *cls, - const struct GNUNET_PeerIdentity *peer, - const struct GNUNET_MessageHeader *message, - const struct GNUNET_TRANSPORT_ATS_Information *atsi) + const struct GNUNET_PeerIdentity *peer, + const struct GNUNET_MessageHeader *message, + const struct GNUNET_TRANSPORT_ATS_Information + *atsi) { #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "`%s:%s': Received request from peer %s\n", my_short_id, "DHT", GNUNET_i2s(peer)); + "`%s:%s': Received request from peer %s\n", my_short_id, "DHT", + GNUNET_i2s (peer)); #endif - struct GNUNET_DHT_P2PRouteResultMessage *incoming = (struct GNUNET_DHT_P2PRouteResultMessage *)message; - struct GNUNET_MessageHeader *enc_msg = (struct GNUNET_MessageHeader *)&incoming[1]; + struct GNUNET_DHT_P2PRouteResultMessage *incoming = + (struct GNUNET_DHT_P2PRouteResultMessage *) message; + struct GNUNET_MessageHeader *enc_msg = + (struct GNUNET_MessageHeader *) &incoming[1]; struct DHT_MessageContext msg_ctx; - if (ntohs(enc_msg->size) >= GNUNET_SERVER_MAX_MESSAGE_SIZE - 1) + if (ntohs (enc_msg->size) >= GNUNET_SERVER_MAX_MESSAGE_SIZE - 1) { - GNUNET_break_op(0); + GNUNET_break_op (0); return GNUNET_YES; } @@ -4427,27 +4730,31 @@ handle_dht_p2p_route_result (void *cls, if ((debug_routes_extended) && (dhtlog_handle != NULL)) { /** Log routes that die due to high load! */ - dhtlog_handle->insert_route (NULL, GNUNET_ntohll(incoming->unique_id), DHTLOG_ROUTE, - ntohl(incoming->hop_count), GNUNET_SYSERR, - &my_identity, &incoming->key, peer, - NULL); + dhtlog_handle->insert_route (NULL, + GNUNET_ntohll (incoming->unique_id), + DHTLOG_ROUTE, + ntohl (incoming->hop_count), + GNUNET_SYSERR, &my_identity, + &incoming->key, peer, NULL); } #endif return GNUNET_YES; } - memset(&msg_ctx, 0, sizeof(struct DHT_MessageContext)); + memset (&msg_ctx, 0, sizeof (struct DHT_MessageContext)); // FIXME: call GNUNET_BLOCK_evaluate (...) -- instead of doing your own bloomfilter! - msg_ctx.bloom = GNUNET_CONTAINER_bloomfilter_init(incoming->bloomfilter, DHT_BLOOM_SIZE, DHT_BLOOM_K); - GNUNET_assert(msg_ctx.bloom != NULL); - memcpy(&msg_ctx.key, &incoming->key, sizeof(GNUNET_HashCode)); - msg_ctx.unique_id = GNUNET_ntohll(incoming->unique_id); - msg_ctx.msg_options = ntohl(incoming->options); - msg_ctx.hop_count = ntohl(incoming->hop_count); + msg_ctx.bloom = + GNUNET_CONTAINER_bloomfilter_init (incoming->bloomfilter, DHT_BLOOM_SIZE, + DHT_BLOOM_K); + GNUNET_assert (msg_ctx.bloom != NULL); + memcpy (&msg_ctx.key, &incoming->key, sizeof (GNUNET_HashCode)); + msg_ctx.unique_id = GNUNET_ntohll (incoming->unique_id); + msg_ctx.msg_options = ntohl (incoming->options); + msg_ctx.hop_count = ntohl (incoming->hop_count); msg_ctx.peer = peer; - msg_ctx.importance = DHT_DEFAULT_P2P_IMPORTANCE + 2; /* Make result routing a higher priority */ + msg_ctx.importance = DHT_DEFAULT_P2P_IMPORTANCE + 2; /* Make result routing a higher priority */ msg_ctx.timeout = DHT_DEFAULT_P2P_TIMEOUT; - route_result_message(enc_msg, &msg_ctx); + route_result_message (enc_msg, &msg_ctx); return GNUNET_YES; } @@ -4464,14 +4771,13 @@ process_hello (void *cls, const struct GNUNET_MessageHeader *message) { #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Received our `%s' from transport service\n", - "HELLO"); + "Received our `%s' from transport service\n", "HELLO"); #endif GNUNET_assert (message != NULL); - GNUNET_free_non_null(my_hello); - my_hello = GNUNET_malloc(ntohs(message->size)); - memcpy(my_hello, message, ntohs(message->size)); + GNUNET_free_non_null (my_hello); + my_hello = GNUNET_malloc (ntohs (message->size)); + memcpy (my_hello, message, ntohs (message->size)); } @@ -4489,18 +4795,21 @@ shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) if (transport_handle != NULL) { - GNUNET_free_non_null(my_hello); - GNUNET_TRANSPORT_get_hello_cancel(transport_handle, &process_hello, NULL); - GNUNET_TRANSPORT_disconnect(transport_handle); + GNUNET_free_non_null (my_hello); + GNUNET_TRANSPORT_get_hello_cancel (transport_handle, &process_hello, + NULL); + GNUNET_TRANSPORT_disconnect (transport_handle); } - for (bucket_count = lowest_bucket; bucket_count < MAX_BUCKETS; bucket_count++) + for (bucket_count = lowest_bucket; bucket_count < MAX_BUCKETS; + bucket_count++) { while (k_buckets[bucket_count].head != NULL) { pos = k_buckets[bucket_count].head; #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "%s:%s Removing peer %s from bucket %d!\n", my_short_id, "DHT", GNUNET_i2s(&pos->id), bucket_count); + "%s:%s Removing peer %s from bucket %d!\n", my_short_id, + "DHT", GNUNET_i2s (&pos->id), bucket_count); #endif delete_peer (pos, bucket_count); } @@ -4530,7 +4839,7 @@ shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) } if (dhtlog_handle != NULL) { - GNUNET_DHTLOG_disconnect(dhtlog_handle); + GNUNET_DHTLOG_disconnect (dhtlog_handle); dhtlog_handle = NULL; } if (block_context != NULL) @@ -4538,7 +4847,7 @@ shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) GNUNET_BLOCK_context_destroy (block_context); block_context = NULL; } - GNUNET_free_non_null(my_short_id); + GNUNET_free_non_null (my_short_id); my_short_id = NULL; } @@ -4578,8 +4887,10 @@ core_init (void *cls, /* Copy our identity so we can use it */ memcpy (&my_identity, identity, sizeof (struct GNUNET_PeerIdentity)); if (my_short_id != NULL) - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s Receive CORE INIT message but have already been initialized! Did CORE fail?\n", "DHT SERVICE"); - my_short_id = GNUNET_strdup(GNUNET_i2s(&my_identity)); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "%s Receive CORE INIT message but have already been initialized! Did CORE fail?\n", + "DHT SERVICE"); + my_short_id = GNUNET_strdup (GNUNET_i2s (&my_identity)); /* Set the server to local variable */ coreAPI = server; @@ -4589,8 +4900,10 @@ core_init (void *cls, static struct GNUNET_SERVER_MessageHandler plugin_handlers[] = { - {&handle_dht_local_route_request, NULL, GNUNET_MESSAGE_TYPE_DHT_LOCAL_ROUTE, 0}, - {&handle_dht_local_route_stop, NULL, GNUNET_MESSAGE_TYPE_DHT_LOCAL_ROUTE_STOP, 0}, + {&handle_dht_local_route_request, NULL, GNUNET_MESSAGE_TYPE_DHT_LOCAL_ROUTE, + 0}, + {&handle_dht_local_route_stop, NULL, + GNUNET_MESSAGE_TYPE_DHT_LOCAL_ROUTE_STOP, 0}, {&handle_dht_control_message, NULL, GNUNET_MESSAGE_TYPE_DHT_CONTROL, 0}, {NULL, NULL, 0, 0} }; @@ -4610,37 +4923,46 @@ static struct GNUNET_CORE_MessageHandler core_handlers[] = { * @param peer peer identity this notification is about * @param atsi performance data */ -static void +static void handle_core_connect (void *cls, - const struct GNUNET_PeerIdentity * peer, - const struct GNUNET_TRANSPORT_ATS_Information *atsi) + const struct GNUNET_PeerIdentity *peer, + const struct GNUNET_TRANSPORT_ATS_Information *atsi) { struct PeerInfo *ret; #if DEBUG_DHT GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "%s:%s Receives core connect message for peer %s distance %d!\n", my_short_id, "dht", GNUNET_i2s(peer), distance); + "%s:%s Receives core connect message for peer %s distance %d!\n", + my_short_id, "dht", GNUNET_i2s (peer), distance); #endif - if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains(all_known_peers, &peer->hashPubKey)) + if (GNUNET_YES == + GNUNET_CONTAINER_multihashmap_contains (all_known_peers, + &peer->hashPubKey)) { - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%s:%s Received %s message for peer %s, but already have peer in RT!", my_short_id, "DHT", "CORE CONNECT", GNUNET_i2s(peer)); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Received %s message for peer %s, but already have peer in RT!", + my_short_id, "DHT", "CORE CONNECT", GNUNET_i2s (peer)); return; } if (datacache != NULL) - GNUNET_DATACACHE_put(datacache, &peer->hashPubKey, sizeof(struct GNUNET_PeerIdentity), (const char *)peer, GNUNET_BLOCK_TYPE_DHT_HELLO, GNUNET_TIME_absolute_get_forever()); - ret = try_add_peer(peer, - find_current_bucket(&peer->hashPubKey), - atsi); + GNUNET_DATACACHE_put (datacache, &peer->hashPubKey, + sizeof (struct GNUNET_PeerIdentity), + (const char *) peer, GNUNET_BLOCK_TYPE_DHT_HELLO, + GNUNET_TIME_absolute_get_forever ()); + ret = try_add_peer (peer, find_current_bucket (&peer->hashPubKey), atsi); if (ret != NULL) { newly_found_peers++; - GNUNET_CONTAINER_multihashmap_put(all_known_peers, &peer->hashPubKey, ret, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY); + GNUNET_CONTAINER_multihashmap_put (all_known_peers, &peer->hashPubKey, + ret, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY); } #if DEBUG_DHT - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "%s:%s Adding peer to routing list: %s\n", my_short_id, "DHT", ret == NULL ? "NOT ADDED" : "PEER ADDED"); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s Adding peer to routing list: %s\n", my_short_id, "DHT", + ret == NULL ? "NOT ADDED" : "PEER ADDED"); #endif } @@ -4652,27 +4974,35 @@ handle_core_connect (void *cls, * @param peer peer identity this notification is about */ static void -handle_core_disconnect (void *cls, - const struct - GNUNET_PeerIdentity * peer) +handle_core_disconnect (void *cls, const struct GNUNET_PeerIdentity *peer) { struct PeerInfo *to_remove; int current_bucket; - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s:%s: Received peer disconnect message for peer `%s' from %s\n", my_short_id, "DHT", GNUNET_i2s(peer), "CORE"); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s: Received peer disconnect message for peer `%s' from %s\n", + my_short_id, "DHT", GNUNET_i2s (peer), "CORE"); - if (GNUNET_YES != GNUNET_CONTAINER_multihashmap_contains(all_known_peers, &peer->hashPubKey)) + if (GNUNET_YES != + GNUNET_CONTAINER_multihashmap_contains (all_known_peers, + &peer->hashPubKey)) { - GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s:%s: do not have peer `%s' in RT, can't disconnect!\n", my_short_id, "DHT", GNUNET_i2s(peer)); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "%s:%s: do not have peer `%s' in RT, can't disconnect!\n", + my_short_id, "DHT", GNUNET_i2s (peer)); return; } - increment_stats(STAT_DISCONNECTS); - GNUNET_assert(GNUNET_CONTAINER_multihashmap_contains(all_known_peers, &peer->hashPubKey)); - to_remove = GNUNET_CONTAINER_multihashmap_get(all_known_peers, &peer->hashPubKey); + increment_stats (STAT_DISCONNECTS); + GNUNET_assert (GNUNET_CONTAINER_multihashmap_contains + (all_known_peers, &peer->hashPubKey)); + to_remove = + GNUNET_CONTAINER_multihashmap_get (all_known_peers, &peer->hashPubKey); GNUNET_assert (to_remove != NULL); - GNUNET_assert(0 == memcmp(peer, &to_remove->id, sizeof(struct GNUNET_PeerIdentity))); - current_bucket = find_current_bucket(&to_remove->id.hashPubKey); - delete_peer(to_remove, current_bucket); + GNUNET_assert (0 == + memcmp (peer, &to_remove->id, + sizeof (struct GNUNET_PeerIdentity))); + current_bucket = find_current_bucket (&to_remove->id.hashPubKey); + delete_peer (to_remove, current_bucket); } @@ -4696,12 +5026,12 @@ run (void *cls, datacache = GNUNET_DATACACHE_create (cfg, "dhtcache"); GNUNET_SERVER_add_handlers (server, plugin_handlers); GNUNET_SERVER_disconnect_notify (server, &handle_client_disconnect, NULL); - coreAPI = GNUNET_CORE_connect (cfg, /* Main configuration */ - DEFAULT_CORE_QUEUE_SIZE, /* queue size */ + coreAPI = GNUNET_CORE_connect (cfg, /* Main configuration */ + DEFAULT_CORE_QUEUE_SIZE, /* queue size */ NULL, /* Closure passed to DHT functions */ &core_init, /* Call core_init once connected */ &handle_core_connect, /* Handle connects */ - &handle_core_disconnect, /* remove peers on disconnects */ + &handle_core_disconnect, /* remove peers on disconnects */ NULL, /* Do we care about "status" updates? */ NULL, /* Don't want notified about all incoming messages */ GNUNET_NO, /* For header only inbound notification */ @@ -4711,60 +5041,61 @@ run (void *cls, if (coreAPI == NULL) return; - transport_handle = GNUNET_TRANSPORT_connect(cfg, - NULL, NULL, NULL, NULL, NULL); + transport_handle = GNUNET_TRANSPORT_connect (cfg, + NULL, NULL, NULL, NULL, NULL); if (transport_handle != NULL) GNUNET_TRANSPORT_get_hello (transport_handle, &process_hello, NULL); else - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, - "Failed to connect to transport service!\n"); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Failed to connect to transport service!\n"); block_context = GNUNET_BLOCK_context_create (cfg); lowest_bucket = MAX_BUCKETS - 1; - forward_list.hashmap = GNUNET_CONTAINER_multihashmap_create(MAX_OUTSTANDING_FORWARDS / 10); - forward_list.minHeap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN); - all_known_peers = GNUNET_CONTAINER_multihashmap_create(MAX_BUCKETS / 8); - recent_find_peer_requests = GNUNET_CONTAINER_multihashmap_create(MAX_BUCKETS / 8); - GNUNET_assert(all_known_peers != NULL); - if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) + forward_list.hashmap = + GNUNET_CONTAINER_multihashmap_create (MAX_OUTSTANDING_FORWARDS / 10); + forward_list.minHeap = + GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN); + all_known_peers = GNUNET_CONTAINER_multihashmap_create (MAX_BUCKETS / 8); + recent_find_peer_requests = + GNUNET_CONTAINER_multihashmap_create (MAX_BUCKETS / 8); + GNUNET_assert (all_known_peers != NULL); + if (GNUNET_YES == + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing", + "mysql_logging")) { debug_routes = GNUNET_YES; } if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "strict_kademlia")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "strict_kademlia")) { strict_kademlia = GNUNET_YES; } if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "stop_on_closest")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "stop_on_closest")) { stop_on_closest = GNUNET_YES; } if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "stop_found")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "stop_found")) { stop_on_found = GNUNET_YES; } if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "malicious_getter")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "malicious_getter")) { malicious_getter = GNUNET_YES; if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT", - "MALICIOUS_GET_FREQUENCY", - &malicious_get_frequency)) + "MALICIOUS_GET_FREQUENCY", + &malicious_get_frequency)) malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY; } if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT", - "MAX_HOPS", - &max_hops)) + "MAX_HOPS", + &max_hops)) { max_hops = DEFAULT_MAX_HOPS; } @@ -4776,47 +5107,52 @@ run (void *cls, } if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "malicious_putter")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "malicious_putter")) { malicious_putter = GNUNET_YES; if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT", - "MALICIOUS_PUT_FREQUENCY", - &malicious_put_frequency)) + "MALICIOUS_PUT_FREQUENCY", + &malicious_put_frequency)) malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY; } dht_republish_frequency = GNUNET_DHT_DEFAULT_REPUBLISH_FREQUENCY; - if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number(cfg, "DHT", "REPLICATION_FREQUENCY", &temp_config_num)) + if (GNUNET_OK == + GNUNET_CONFIGURATION_get_value_number (cfg, "DHT", + "REPLICATION_FREQUENCY", + &temp_config_num)) { - dht_republish_frequency = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, temp_config_num); + dht_republish_frequency = + GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, + temp_config_num); } - if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number(cfg, "DHT", "bucket_size", &temp_config_num)) + if (GNUNET_OK == + GNUNET_CONFIGURATION_get_value_number (cfg, "DHT", "bucket_size", + &temp_config_num)) { - bucket_size = (unsigned int)temp_config_num; + bucket_size = (unsigned int) temp_config_num; } - if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT", "kad_alpha", &kademlia_replication)) + if (GNUNET_OK != + GNUNET_CONFIGURATION_get_value_number (cfg, "DHT", "kad_alpha", + &kademlia_replication)) { kademlia_replication = DEFAULT_KADEMLIA_REPLICATION; } if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "malicious_dropper")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "malicious_dropper")) { malicious_dropper = GNUNET_YES; } if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "republish")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "republish")) do_republish = GNUNET_NO; if (GNUNET_NO == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "do_find_peer")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "do_find_peer")) { do_find_peer = GNUNET_NO; } @@ -4824,13 +5160,12 @@ run (void *cls, do_find_peer = GNUNET_YES; if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "use_real_distance")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "use_real_distance")) use_real_distance = GNUNET_YES; if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", - "mysql_logging_extended")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing", + "mysql_logging_extended")) { debug_routes = GNUNET_YES; debug_routes_extended = GNUNET_YES; @@ -4839,7 +5174,7 @@ run (void *cls, #if DEBUG_DHT_ROUTING if (GNUNET_YES == debug_routes) { - dhtlog_handle = GNUNET_DHTLOG_connect(cfg); + dhtlog_handle = GNUNET_DHTLOG_connect (cfg); if (dhtlog_handle == NULL) { GNUNET_log (GNUNET_ERROR_TYPE_WARNING, @@ -4850,77 +5185,85 @@ run (void *cls, converge_option = DHT_CONVERGE_SQUARE; if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "converge_linear")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "converge_linear")) { converge_option = DHT_CONVERGE_LINEAR; } else if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "converge_exponential")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", + "converge_exponential")) { converge_option = DHT_CONVERGE_EXPONENTIAL; } else if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "converge_random")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", + "converge_random")) { converge_option = DHT_CONVERGE_RANDOM; } else if (GNUNET_YES == - GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", - "converge_binary")) + GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", + "converge_binary")) { converge_option = DHT_CONVERGE_BINARY; } - if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "dht", "converge_modifier", &converge_modifier_buf)) + if (GNUNET_OK == + GNUNET_CONFIGURATION_get_value_string (cfg, "dht", "converge_modifier", + &converge_modifier_buf)) { - if (1 != sscanf(converge_modifier_buf, "%f", &converge_modifier)) + if (1 != sscanf (converge_modifier_buf, "%f", &converge_modifier)) { - GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read decimal value for %s from `%s'\n", "CONVERGE_MODIFIER", converge_modifier_buf); + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Failed to read decimal value for %s from `%s'\n", + "CONVERGE_MODIFIER", converge_modifier_buf); converge_modifier = 0.0; } - GNUNET_free(converge_modifier_buf); + GNUNET_free (converge_modifier_buf); } - stats = GNUNET_STATISTICS_create("dht", cfg); + stats = GNUNET_STATISTICS_create ("dht", cfg); if (stats != NULL) { - GNUNET_STATISTICS_set(stats, STAT_ROUTES, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_ROUTE_FORWARDS, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_ROUTE_FORWARDS_CLOSEST, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_RESULTS, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_RESULTS_TO_CLIENT, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_RESULT_FORWARDS, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_GETS, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_PUTS, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_PUTS_INSERTED, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_FIND_PEER, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_FIND_PEER_START, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_GET_START, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_PUT_START, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_FIND_PEER_REPLY, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_FIND_PEER_ANSWER, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_BLOOM_FIND_PEER, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_GET_REPLY, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_GET_RESPONSE_START, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_HELLOS_PROVIDED, 0, GNUNET_NO); - GNUNET_STATISTICS_set(stats, STAT_DISCONNECTS, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_ROUTES, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_ROUTE_FORWARDS, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_ROUTE_FORWARDS_CLOSEST, 0, + GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_RESULTS, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_RESULTS_TO_CLIENT, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_RESULT_FORWARDS, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_GETS, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_PUTS, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_PUTS_INSERTED, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_FIND_PEER, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_FIND_PEER_START, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_GET_START, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_PUT_START, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_FIND_PEER_REPLY, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_FIND_PEER_ANSWER, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_BLOOM_FIND_PEER, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_GET_REPLY, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_GET_RESPONSE_START, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_HELLOS_PROVIDED, 0, GNUNET_NO); + GNUNET_STATISTICS_set (stats, STAT_DISCONNECTS, 0, GNUNET_NO); } /* FIXME: if there are no recent requests then these never get freed, but alternative is _annoying_! */ - recent.hashmap = GNUNET_CONTAINER_multihashmap_create(DHT_MAX_RECENT / 2); - recent.minHeap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN); + recent.hashmap = GNUNET_CONTAINER_multihashmap_create (DHT_MAX_RECENT / 2); + recent.minHeap = + GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN); if (GNUNET_YES == do_find_peer) - { - next_send_time.rel_value = DHT_MINIMUM_FIND_PEER_INTERVAL.rel_value + - GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_STRONG, - (DHT_MAXIMUM_FIND_PEER_INTERVAL.rel_value / 2) - DHT_MINIMUM_FIND_PEER_INTERVAL.rel_value); - find_peer_context.start = GNUNET_TIME_absolute_get(); - GNUNET_SCHEDULER_add_delayed (next_send_time, - &send_find_peer_message, &find_peer_context); - } + { + next_send_time.rel_value = DHT_MINIMUM_FIND_PEER_INTERVAL.rel_value + + GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_STRONG, + (DHT_MAXIMUM_FIND_PEER_INTERVAL.rel_value / + 2) - + DHT_MINIMUM_FIND_PEER_INTERVAL.rel_value); + find_peer_context.start = GNUNET_TIME_absolute_get (); + GNUNET_SCHEDULER_add_delayed (next_send_time, + &send_find_peer_message, + &find_peer_context); + } /* Scheduled the task to clean up when shutdown is called */ cleanup_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, @@ -4940,13 +5283,12 @@ main (int argc, char *const *argv) int ret; ret = (GNUNET_OK == - GNUNET_SERVICE_run (argc, - argv, - "dht", - GNUNET_SERVICE_OPTION_NONE, - &run, NULL)) ? 0 : 1; - GNUNET_assert (0 == GNUNET_CONTAINER_multihashmap_size(recent.hashmap)); - GNUNET_assert (0 == GNUNET_CONTAINER_heap_get_size(recent.minHeap)); + GNUNET_SERVICE_run (argc, + argv, + "dht", + GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1; + GNUNET_assert (0 == GNUNET_CONTAINER_multihashmap_size (recent.hashmap)); + GNUNET_assert (0 == GNUNET_CONTAINER_heap_get_size (recent.minHeap)); GNUNET_CONTAINER_multihashmap_destroy (recent_find_peer_requests); GNUNET_CONTAINER_multihashmap_destroy (recent.hashmap); GNUNET_CONTAINER_heap_destroy (recent.minHeap); -- 2.25.1