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3 (C) 2011 Christian Grothoff (and other contributing authors)
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22 * @file ats/gnunet-service-ats_addresses.c
23 * @brief ats service address management
24 * @author Matthias Wachs
25 * @author Christian Grothoff
28 #include "gnunet_ats_service.h"
29 #include "gnunet-service-ats.h"
30 #include "gnunet-service-ats_addresses.h"
31 #include "gnunet-service-ats_performance.h"
32 #include "gnunet-service-ats_scheduling.h"
33 #include "gnunet-service-ats_reservations.h"
35 #include "gnunet-service-ats_addresses_mlp.h"
37 #include "gnunet-service-ats_addresses_simplistic.h"
40 * NOTE: Do not change this documentation. This documentation is based on
41 * gnunet.org:/vcs/fsnsg/ats-paper.git/tech-doku/ats-tech-guide.tex
42 * use build_txt.sh to generate plaintext output
44 * 1 ATS addresses : ATS address management
46 * This ATS addresses ("addresses") component manages the addresses known to
47 * ATS service and suggests addresses to transport service when it is
48 * interested in address suggestion for a peer. ATS addresses also
49 * instantiates the bandwidth assignment mechanism (solver), notifies it
50 * about changes to addresses and forwards changes to bandwidth assignments
51 * to transport, depending if transport is interested in this change.
57 * Addresses are added by specifying peer ID, plugin, address, address length
58 * and session, if available. ATS information can be specified if available.
62 * ATS specifies a fix set of networks an address can belong to. For each
63 * network an inbound and outbound quota will be specified. The available
64 * networks and addtional helper varaibles are defined in
65 * gnunet_ats_service.h. At the moment 5 networks are defined:
66 * * GNUNET_ATS_NET_UNSPECIFIED
67 * * GNUNET_ATS_NET_LOOPBACK
68 * * GNUNET_ATS_NET_LAN
69 * * GNUNET_ATS_NET_WAN
70 * * GNUNET_ATS_NET_WLAN
72 * The total number of networks defined is stored in
73 * GNUNET_ATS_NetworkTypeCount GNUNET_ATS_NetworkType can be used array
74 * initializer for an int array, while GNUNET_ATS_NetworkType is an
75 * initializer for a char array containing a string description of all
80 * An inbound and outbound quota for each of the networks mentioned in 1.1.2
81 * is loaded from ats configuration during initialization. This quota defines
82 * to total amount of inbound and outbound traffic allowed for a specific
83 * network. The configuration values used are in section ats:
84 * * "NETWORK"_QUOTA_IN = <value>
85 * * "NETWORK"_QUOTA_IN = <value>
87 * You can specify quotas by setting the <value> to a:
88 * * unrestricted: unlimited
89 * * number of bytes: e.g. 10240
90 * * fancy value: e.g. 64 Kib
92 * unlimited is defined as GNUNET_ATS_MaxBandwidthString and equivalent to
93 * the value GNUNET_ATS_MaxBandwidth Important predefined values for quotas
95 * * GNUNET_ATS_DefaultBandwidth: 65536
96 * * GNUNET_ATS_MaxBandwidth: UINT32_MAX
97 * * GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT: 1024
99 * Details of loading quotas and default values will be described on
101 * 1.1.4 Preference values
103 * 1.2 Data structures used
105 * Addresse uses struct ATS_Address for each address. The structs are stored
106 * in a linked list and provides a pointer void *solver_information for the
107 * solver to store address specific information. It provides the int values
108 * active which is set to GNUNET_YES if the address is select for transport
109 * use and used, representing that transport service is actively using this
110 * address. Address information are stored in peer, addr, addr_len, plugin.
114 * During initialization a hashmap to store addresses is created. The quotas
115 * for all networks defined for ATS are loaded from configuration. For each
116 * network first the logic will check if the string
117 * GNUNET_ATS_MaxBandwidthString is configured, if not it will try to convert
118 * the configured value as a fancy size and if this fails it will try to use
119 * it as a value_number. If no configuration value is found it will assign
120 * GNUNET_ATS_DefaultBandwidth. The most important step is to load the
121 * configured solver using configuration "[ats]:MODE". Current solvers are
122 * MODE_SIMPLISTIC, MODE_MLP. Interaction is done using a solver API
127 * * s_init: init the solver with required information
128 * * s_add: add a new address
129 * * s_update: update ATS values or session for an address
130 * * s_get: get prefered address for a peer
131 * * s_del: delete an address
132 * * s_pref: change preference value for a peer
133 * * s_done: shutdown solver
135 * Callbacks: addresses provides a bandwidth_changed_cb callback to the
136 * solver which is called when bandwidth assigned to peer has changed
140 * During shutdown all addresses are freed and the solver told to shutdown
142 * 1.6 Addresses and sessions
144 * Addresses consist of the address itself and a numerical session. When a
145 * new address without a session is added it has no session, so it gets
146 * session 0 assigned. When an address with a session is added and an address
147 * object with session 0 is found, this object is updated with the session
148 * otherwise a new address object with this session assigned is created.
152 * Addresses a1,a2 with session s1, s2 are "exact" if:
153 * (a1 == a2)&&(s1 == s2)
154 * Addresses a1,a2 with session s1, s2 are "equivalent" if:
155 * (a1 == a2)&&((s1 == s2)||(s1 == 0)||(s2 == 0)
157 * 1.7 Address management
159 * Transport service notifies ATS about changes to the addresses known to
162 * 1.7.1 Adding an address
164 * When transport learns a new address it tells ATS and ATS is telling
165 * addresses about it using GAS_address_add. If not known to addresses it
166 * creates a new address object and calls solver's s_add. ATS information are
167 * deserialized and solver is notified about the session and ATS information
170 * 1.7.2 Updating an address
172 * Addresses does an lookup up for the existing address with the given
173 * session. If disassembles included ATS information and notifies the solver
174 * using s_update about the update.
176 * 1.7.3 Deleting an address
178 * Addresses does an lookup for the exact address and session and if removes
179 * this address. If session != 0 the session is set to 0 and the address is
180 * kept. If session == 0, the addresses is removed.
182 * 1.7.4 Requesting an address suggestion
184 * The address client issues a request address message to be notified about
185 * address suggestions for a specific peer. Addresses asks the solver with
186 * s_get. If no address is available, it will not send a response, otherwise
187 * it will respond with the choosen address.
189 * 1.7.5 Address suggestions
191 * Addresses will notify the client automatically on any bandwidth_changed_cb
192 * by the solver if a address suggestion request is pending. If no address is
193 * available it will not respond at all If the client is not interested
194 * anymore, it has to cancel the address suggestion request.
196 * 1.7.6 Suggestions blocks and reset
198 * After suggesting an address it is blocked for ATS_BLOCKING_DELTA sec. to
199 * prevent the client from being thrashed. If the client requires immediately
200 * it can reset this block using GAS_addresses_handle_backoff_reset.
202 * 1.7.7 Marking address in use
204 * The client can notify addresses that it successfully uses an address and
205 * wants this address to be kept by calling GSA_address_in_use. Adresses will
206 * mark the address as used an notify the solver about the use.
208 * 1.7.8 Address lifecycle
211 * * (updated address) || (address in use)
214 * 1.8 Bandwidth assignment
216 * The addresses are used to perform resource allocation operations. ATS
217 * addresses takes care of instantiating the solver configured and notifies
218 * the respective solver about address changes and receives changes to the
219 * bandwidth assignment from the solver. The current bandwidth assignment is
220 * sent to transport. The specific solvers will be described in the specific
223 * 1.9 Changing peer preferences
225 * The bandwidth assigned to a peer can be influenced by setting a preference
226 * for a peer. The prefernce will be given to to the solver with s_pref which
227 * has to take care of the preference value
233 * Available ressource assignment modes
240 * Assign each peer an equal amount of bandwidth (bw)
242 * bw_per_peer = bw_total / #active addresses
249 * Solve ressource assignment as an optimization problem
250 * Uses an mixed integer programming solver
257 * Pending Address suggestion requests
259 struct GAS_Addresses_Suggestion_Requests
264 struct GAS_Addresses_Suggestion_Requests *next;
269 struct GAS_Addresses_Suggestion_Requests *prev;
274 struct GNUNET_PeerIdentity id;
279 * Handle for ATS address component
281 struct GAS_Addresses_Handle
286 struct GNUNET_STATISTICS_Handle *stat;
289 * A multihashmap to store all addresses
291 struct GNUNET_CONTAINER_MultiHashMap *addresses;
294 * Configure WAN quota in
296 unsigned long long wan_quota_in;
299 * Configure WAN quota out
301 unsigned long long wan_quota_out;
304 * Is ATS addresses running
309 * Configured ATS solver
319 * Address suggestion requests DLL head
321 struct GAS_Addresses_Suggestion_Requests *r_head;
324 * Address suggestion requests DLL tail
326 struct GAS_Addresses_Suggestion_Requests *r_tail;
328 /* Solver functions */
333 GAS_solver_init s_init;
336 * Add an address to the solver
338 GAS_solver_address_add s_add;
341 * Update address in solver
343 GAS_solver_address_update s_update;
346 * Get address from solver
348 GAS_solver_get_preferred_address s_get;
351 * Get address from solver
353 GAS_solver_stop_get_preferred_address s_get_stop;
356 * Delete address in solver
358 GAS_solver_address_delete s_del;
361 * Change preference for quality in solver
363 GAS_solver_address_change_preference s_pref;
368 GAS_solver_done s_done;
373 * Assemble ATS information from address
375 * @param aa source address
376 * @param dest destination
377 * @return number of elements
380 assemble_ats_information (const struct ATS_Address *aa, struct GNUNET_ATS_Information **dest)
382 unsigned int ats_count = GNUNET_ATS_PropertyCount - 1;
383 struct GNUNET_ATS_Information *ats;
385 ats = GNUNET_malloc (ats_count * sizeof (struct GNUNET_ATS_Information));
388 ats[0].type = ntohl(GNUNET_ATS_UTILIZATION_UP);
389 ats[0].value = aa->atsp_utilization_out.value__;
390 ats[1].type = ntohl(GNUNET_ATS_UTILIZATION_DOWN);
391 ats[1].value = aa->atsp_utilization_in.value__;
392 ats[2].type = ntohl(GNUNET_ATS_NETWORK_TYPE);
393 ats[2].value = ntohl(aa->atsp_network_type);
394 ats[3].type = ntohl(GNUNET_ATS_QUALITY_NET_DELAY);
395 ats[3].value = ntohl(aa->atsp_latency.rel_value);
396 ats[4].type = ntohl(GNUNET_ATS_QUALITY_NET_DISTANCE);
397 ats[4].value = ntohl(aa->atsp_distance);
398 ats[5].type = ntohl(GNUNET_ATS_COST_WAN);
399 ats[5].value = ntohl (aa->atsp_cost_wan);
400 ats[6].type = ntohl(GNUNET_ATS_COST_LAN);
401 ats[6].value = ntohl (aa->atsp_cost_lan);
402 ats[7].type = ntohl(GNUNET_ATS_COST_WLAN);
403 ats[7].value = ntohl (aa->atsp_cost_wlan);
409 * Disassemble ATS information and update address
411 * @param src source ATS information
412 * @param ats_count number of ATS information
413 * @param dest destination address
414 * @return GNUNET_YES if address was address updated, GNUNET_NO otherwise
417 disassemble_ats_information (const struct GNUNET_ATS_Information *src,
419 struct ATS_Address *dest)
422 int change = GNUNET_NO;
424 for (i = 0; i < ats_count; i++)
425 switch (ntohl (src[i].type))
427 case GNUNET_ATS_UTILIZATION_UP:
428 if (dest->atsp_utilization_out.value__ != src[i].value)
430 dest->atsp_utilization_out.value__ = src[i].value;
433 case GNUNET_ATS_UTILIZATION_DOWN:
434 if (dest->atsp_utilization_in.value__ != src[i].value)
436 dest->atsp_utilization_in.value__ = src[i].value;
439 case GNUNET_ATS_QUALITY_NET_DELAY:
440 if (dest->atsp_latency.rel_value != src[i].value)
442 dest->atsp_latency.rel_value = ntohl (src[i].value);
445 case GNUNET_ATS_QUALITY_NET_DISTANCE:
446 if (dest->atsp_distance!= src[i].value)
448 dest->atsp_distance = ntohl (src[i].value);
451 case GNUNET_ATS_COST_WAN:
452 if (dest->atsp_cost_wan != src[i].value)
454 dest->atsp_cost_wan = ntohl (src[i].value);
457 case GNUNET_ATS_COST_LAN:
458 if (dest->atsp_cost_lan != src[i].value)
460 dest->atsp_cost_lan = ntohl (src[i].value);
463 case GNUNET_ATS_COST_WLAN:
464 if (dest->atsp_cost_wlan != src[i].value)
466 dest->atsp_cost_wlan = ntohl (src[i].value);
469 case GNUNET_ATS_NETWORK_TYPE:
470 if (dest->atsp_network_type != src[i].value)
472 dest->atsp_network_type = ntohl (src[i].value);
475 case GNUNET_ATS_ARRAY_TERMINATOR:
478 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
479 "Received unsupported ATS type %u\n", ntohl (src[i].type));
487 * Free the given address
488 * @param addr address to destroy
491 free_address (struct ATS_Address *addr)
493 GNUNET_free (addr->plugin);
498 * Create a ATS_address with the given information
500 * @param plugin_name plugin
501 * @param plugin_addr address
502 * @param plugin_addr_len address length
503 * @param session_id session
504 * @return the ATS_Address
506 static struct ATS_Address *
507 create_address (const struct GNUNET_PeerIdentity *peer,
508 const char *plugin_name,
509 const void *plugin_addr, size_t plugin_addr_len,
512 struct ATS_Address *aa = NULL;
514 aa = GNUNET_malloc (sizeof (struct ATS_Address) + plugin_addr_len);
516 aa->addr_len = plugin_addr_len;
518 memcpy (&aa[1], plugin_addr, plugin_addr_len);
519 aa->plugin = GNUNET_strdup (plugin_name);
520 aa->session_id = session_id;
521 aa->active = GNUNET_NO;
522 aa->used = GNUNET_NO;
523 aa->solver_information = NULL;
524 aa->assigned_bw_in = GNUNET_BANDWIDTH_value_init(0);
525 aa->assigned_bw_out = GNUNET_BANDWIDTH_value_init(0);
531 * Destroy the given address.
533 * @param handle the address handle
534 * @param addr address to destroy
535 * @return GNUNET_YES if bandwidth allocations should be recalcualted
538 destroy_address (struct GAS_Addresses_Handle *handle, struct ATS_Address *addr)
543 GNUNET_assert (GNUNET_YES ==
544 GNUNET_CONTAINER_multihashmap_remove (handle->addresses,
545 &addr->peer.hashPubKey,
552 struct CompareAddressContext
554 const struct ATS_Address *search;
556 /* exact_address != NULL if address and session is equal */
557 struct ATS_Address *exact_address;
558 /* exact_address != NULL if address and session is 0 */
559 struct ATS_Address *base_address;
564 compare_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
566 struct CompareAddressContext *cac = cls;
567 struct ATS_Address *aa = value;
569 /* Find an matching exact address:
572 * aa->addr_len == cac->search->addr_len
573 * aa->plugin == cac->search->plugin
574 * aa->addr == cac->search->addr
575 * aa->session == cac->search->session
577 * return as exact address
579 if ((aa->addr_len == cac->search->addr_len) && (0 == strcmp (aa->plugin, cac->search->plugin)))
581 if ((0 == memcmp (aa->addr, cac->search->addr, aa->addr_len)) && (aa->session_id == cac->search->session_id))
582 cac->exact_address = aa;
585 /* Find an matching base address:
589 * aa->session_id == 0
592 * aa->addr_len == cac->search->addr_len
593 * aa->plugin == cac->search->plugin
594 * aa->addr == cac->search->addr
596 * return as base address
598 if ((aa->addr_len == cac->search->addr_len) && (0 == strcmp (aa->plugin, cac->search->plugin)))
600 if ((0 == memcmp (aa->addr, cac->search->addr, aa->addr_len)) && (aa->session_id == 0))
601 cac->base_address = aa;
604 /* Find an matching exact address based on session:
608 * cac->search->addr_len == 0
611 * aa->plugin == cac->search->plugin
612 * aa->session_id == cac->search->session_id
614 * return as exact address
616 if (0 == cac->search->addr_len)
618 if ((0 == strcmp (aa->plugin, cac->search->plugin)) && (aa->session_id == cac->search->session_id))
619 cac->exact_address = aa;
622 if (cac->exact_address == NULL)
623 return GNUNET_YES; /* Continue iteration to find exact address */
625 return GNUNET_NO; /* Stop iteration since we have an exact address */
630 * Find an existing equivalent address record.
631 * Compares by peer identity and network address OR by session ID
632 * (one of the two must match).
634 * @param handle the address handle
635 * @param peer peer to lookup addresses for
636 * @param addr existing address record
637 * @return existing address record, NULL for none
640 find_equivalent_address (struct GAS_Addresses_Handle *handle,
641 const struct GNUNET_PeerIdentity *peer,
642 const struct ATS_Address *addr)
644 struct CompareAddressContext cac;
646 cac.exact_address = NULL;
647 cac.base_address = NULL;
649 GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
650 &compare_address_it, &cac);
652 if (cac.exact_address == NULL)
653 return cac.base_address;
654 return cac.exact_address;
658 static struct ATS_Address *
659 lookup_address (struct GAS_Addresses_Handle *handle,
660 const struct GNUNET_PeerIdentity *peer,
661 const char *plugin_name,
662 const void *plugin_addr,
663 size_t plugin_addr_len,
665 const struct GNUNET_ATS_Information *atsi,
668 struct ATS_Address *aa;
669 struct ATS_Address *ea;
671 aa = create_address (peer,
673 plugin_addr, plugin_addr_len,
676 /* Get existing address or address with session == 0 */
677 ea = find_equivalent_address (handle, peer, aa);
683 else if (ea->session_id != session_id)
692 GAS_addresses_add (struct GAS_Addresses_Handle *handle,
693 const struct GNUNET_PeerIdentity *peer,
694 const char *plugin_name, const void *plugin_addr,
695 size_t plugin_addr_len, uint32_t session_id,
696 const struct GNUNET_ATS_Information *atsi,
699 struct ATS_Address *aa;
700 struct ATS_Address *ea;
701 struct GNUNET_ATS_Information *ats_new;
702 uint32_t ats_count_new;
703 unsigned int ats_res;
705 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
706 "Received `%s' for peer `%s'\n",
710 if (GNUNET_NO == handle->running)
713 GNUNET_assert (NULL != handle->addresses);
715 aa = create_address (peer, plugin_name, plugin_addr, plugin_addr_len,
718 if (atsi_count != (ats_res = disassemble_ats_information(atsi, atsi_count, aa)))
720 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
721 "While adding address: had %u ATS elements to add, could only add %u\n",
722 atsi_count, ats_res);
725 /* Get existing address or address with session == 0 */
726 ea = find_equivalent_address (handle, peer, aa);
729 /* We have a new address */
730 GNUNET_assert (GNUNET_OK ==
731 GNUNET_CONTAINER_multihashmap_put (handle->addresses,
732 &peer->hashPubKey, aa,
733 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
734 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Added new address for peer `%s' session id %u, %p\n",
735 GNUNET_i2s (peer), session_id, aa);
736 /* Tell solver about new address */
737 handle->s_add (handle->solver, handle->addresses, aa);
738 /* Notify performance clients about new address */
739 ats_count_new = assemble_ats_information (aa, &ats_new);
740 GAS_performance_notify_all_clients (&aa->peer,
742 aa->addr, aa->addr_len,
744 ats_new, ats_count_new,
747 GNUNET_free (ats_new);
750 GNUNET_free (aa->plugin);
753 if (ea->session_id != 0)
755 /* This address with the same session is already existing
756 * Should not happen */
757 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
758 "Added already existing address for peer `%s' `%s' %p with new session %u\n",
759 GNUNET_i2s (peer), plugin_name, session_id);
764 /* We have an address without an session, update this address */
766 /* Notify solver about update with atsi information and session */
767 handle->s_update (handle->solver, handle->addresses, ea, session_id, ea->used, atsi, atsi_count);
770 ea->session_id = session_id;
771 if (GNUNET_YES == disassemble_ats_information(atsi, atsi_count, ea))
773 ats_count_new = assemble_ats_information (aa, &ats_new);
774 GAS_performance_notify_all_clients (&aa->peer,
776 aa->addr, aa->addr_len,
778 ats_new, ats_count_new,
781 GNUNET_free (ats_new);
783 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
784 "Updated existing address for peer `%s' %p with new session %u\n",
785 GNUNET_i2s (peer), ea, session_id);
790 GAS_addresses_update (struct GAS_Addresses_Handle *handle,
791 const struct GNUNET_PeerIdentity *peer,
792 const char *plugin_name, const void *plugin_addr,
793 size_t plugin_addr_len, uint32_t session_id,
794 const struct GNUNET_ATS_Information *atsi,
797 struct ATS_Address *aa;
798 struct GNUNET_ATS_Information *ats_new;
799 uint32_t ats_count_new;
801 if (GNUNET_NO == handle->running)
804 GNUNET_assert (NULL != handle->addresses);
806 /* Get existing address */
807 aa = lookup_address (handle, peer, plugin_name, plugin_addr, plugin_addr_len,
808 session_id, atsi, atsi_count);
811 /* GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Tried to update unknown address for peer `%s' `%s' session id %u\n", */
812 /* GNUNET_i2s (peer), plugin_name, session_id); */
813 /* GNUNET_break (0); */
817 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
818 "Received `%s' for peer `%s' address \n",
820 GNUNET_i2s (peer), aa);
822 /* Tell solver about update */
823 handle->s_update (handle->solver, handle->addresses, aa, session_id, aa->used, atsi, atsi_count);
826 if (GNUNET_YES == disassemble_ats_information (atsi, atsi_count, aa))
828 ats_count_new = assemble_ats_information (aa, &ats_new);
829 /* Notify performance clients about updated address */
830 GAS_performance_notify_all_clients (&aa->peer,
832 aa->addr, aa->addr_len,
834 ats_new, ats_count_new,
837 GNUNET_free (ats_new);
842 struct DestroyContext
844 struct ATS_Address *aa;
846 struct GAS_Addresses_Handle *handle;
849 * GNUNET_NO : full address
850 * GNUNET_YES : just session
859 * If session != 0, just the session is deleted, the address itself still exists
860 * If session == 0, remove full address
861 * If session == 0 and addrlen == 0, destroy inbound address
865 * @param value the 'struct ATS_Address'
866 * @return GNUNET_OK (continue to iterate)
869 destroy_by_session_id (void *cls, const struct GNUNET_HashCode * key, void *value)
871 struct DestroyContext *dc = cls;
872 struct GAS_Addresses_Handle *handle = dc->handle;
873 const struct ATS_Address *des = dc->aa;
874 struct ATS_Address *aa = value;
876 GNUNET_assert (0 == memcmp (&aa->peer, &des->peer,
877 sizeof (struct GNUNET_PeerIdentity)));
880 if (des->session_id == 0)
882 /* Session == 0, remove full address */
883 if ((0 == strcmp (des->plugin, aa->plugin)) &&
884 (aa->addr_len == des->addr_len) &&
885 (0 == memcmp (des->addr, aa->addr, aa->addr_len)))
888 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
889 "Deleting full address for peer `%s' session %u %p\n",
890 GNUNET_i2s (&aa->peer), aa->session_id, aa);
892 /* Notify solver about deletion */
893 handle->s_del (handle->solver, handle->addresses, aa, GNUNET_NO);
894 destroy_address (handle, aa);
895 dc->result = GNUNET_NO;
896 return GNUNET_OK; /* Continue iteration */
901 /* Session != 0, just remove session */
902 if (aa->session_id != des->session_id)
903 return GNUNET_OK; /* irrelevant */
905 if ((aa->session_id != 0) &&
906 (0 != strcmp (des->plugin, aa->plugin)))
908 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
909 "Different plugins during removal: `%s' vs `%s' \n",
910 des->plugin, aa->plugin);
915 if (aa->addr_len == 0)
917 /* Inbound connection died, delete full address */
918 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
919 "Deleting inbound address for peer `%s': `%s' session %u\n",
920 GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
922 /* Notify solver about deletion */
923 handle->s_del (handle->solver, handle->addresses, aa, GNUNET_NO);
924 destroy_address (handle, aa);
925 dc->result = GNUNET_NO;
926 return GNUNET_OK; /* Continue iteration */
931 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
932 "Deleting session for peer `%s': `%s' %u\n",
933 GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
934 /* Notify solver to delete session */
935 handle->s_del (handle->solver, handle->addresses, aa, GNUNET_YES);
944 GAS_addresses_destroy (struct GAS_Addresses_Handle *handle,
945 const struct GNUNET_PeerIdentity *peer,
946 const char *plugin_name, const void *plugin_addr,
947 size_t plugin_addr_len, uint32_t session_id)
949 struct ATS_Address *ea;
950 struct DestroyContext dc;
952 if (GNUNET_NO == handle->running)
955 /* Get existing address */
956 ea = lookup_address (handle, peer, plugin_name, plugin_addr, plugin_addr_len,
957 session_id, NULL, 0);
959 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
960 "Received `%s' for peer `%s' address %p session %u\n",
962 GNUNET_i2s (peer), ea, session_id);
966 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Tried to destroy unknown address for peer `%s' `%s' session id %u\n",
967 GNUNET_i2s (peer), plugin_name, session_id);
971 GNUNET_break (0 < strlen (plugin_name));
973 dc.aa = create_address (peer, plugin_name, plugin_addr, plugin_addr_len, session_id);
975 GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
976 &destroy_by_session_id, &dc);
977 free_address (dc.aa);
982 GAS_addresses_in_use (struct GAS_Addresses_Handle *handle,
983 const struct GNUNET_PeerIdentity *peer,
984 const char *plugin_name, const void *plugin_addr,
985 size_t plugin_addr_len, uint32_t session_id, int in_use)
987 struct ATS_Address *ea;
989 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
990 "Received `%s' for peer `%s'\n",
994 if (GNUNET_NO == handle->running)
995 return GNUNET_SYSERR;
997 ea = lookup_address (handle, peer, plugin_name,
998 plugin_addr, plugin_addr_len,
999 session_id, NULL, 0);
1002 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1003 "Trying to set unknown address `%s', %s %u %s \n",
1005 plugin_name, session_id,
1006 (GNUNET_NO == in_use) ? "NO" : "YES");
1008 return GNUNET_SYSERR;
1010 if (ea->used == in_use)
1013 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1014 "Address in use called multiple times for peer `%s': %s -> %s \n",
1016 (GNUNET_NO == ea->used) ? "NO" : "YES",
1017 (GNUNET_NO == in_use) ? "NO" : "YES");
1018 return GNUNET_SYSERR;
1021 /* Tell solver about update */
1022 handle->s_update (handle->solver, handle->addresses, ea, session_id, in_use, NULL, 0);
1030 * Cancel address suggestions for a peer
1032 * @param handle the address handle
1033 * @param peer the respective peer
1036 GAS_addresses_request_address_cancel (struct GAS_Addresses_Handle *handle,
1037 const struct GNUNET_PeerIdentity *peer)
1039 struct GAS_Addresses_Suggestion_Requests *cur = handle->r_head;
1041 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1042 "Received request: `%s' for peer %s\n", "request_address_cancel", GNUNET_i2s (peer));
1046 if (0 == memcmp (peer, &cur->id, sizeof (cur->id)))
1053 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1054 "No address requests pending for peer `%s', cannot remove!\n", GNUNET_i2s (peer));
1057 handle->s_get_stop (handle->solver, handle->addresses, peer);
1058 GAS_addresses_handle_backoff_reset (handle, peer);
1059 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1060 "Removed request pending for peer `%s\n", GNUNET_i2s (peer));
1061 GNUNET_CONTAINER_DLL_remove (handle->r_head, handle->r_tail, cur);
1067 * Add an address suggestions for a peer
1069 * @param handle the address handle
1070 * @param peer the respective peer
1073 GAS_addresses_request_address (struct GAS_Addresses_Handle *handle,
1074 const struct GNUNET_PeerIdentity *peer)
1076 struct GAS_Addresses_Suggestion_Requests *cur = handle->r_head;
1077 struct ATS_Address *aa;
1078 struct GNUNET_ATS_Information *ats;
1079 unsigned int ats_count;
1081 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1082 "Received `%s' for peer `%s'\n",
1086 if (GNUNET_NO == handle->running)
1090 if (0 == memcmp (peer, &cur->id, sizeof (cur->id)))
1091 break; /* already suggesting */
1096 cur = GNUNET_malloc (sizeof (struct GAS_Addresses_Suggestion_Requests));
1098 GNUNET_CONTAINER_DLL_insert (handle->r_head, handle->r_tail, cur);
1101 /* Get prefered address from solver */
1102 aa = (struct ATS_Address *) handle->s_get (handle->solver, handle->addresses, peer);
1105 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1106 "Cannot suggest address for peer `%s'\n", GNUNET_i2s (peer));
1110 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1111 "Suggesting address %p for peer `%s'\n", aa, GNUNET_i2s (peer));
1113 ats_count = assemble_ats_information (aa, &ats);
1114 GAS_scheduling_transmit_address_suggestion (peer,
1116 aa->addr, aa->addr_len,
1119 aa->assigned_bw_out,
1120 aa->assigned_bw_in);
1122 aa->block_interval = GNUNET_TIME_relative_add (aa->block_interval, ATS_BLOCKING_DELTA);
1123 aa->blocked_until = GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get(), aa->block_interval);
1125 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1126 "Address %p ready for suggestion, block interval now %llu \n",
1127 aa, aa->block_interval);
1134 reset_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
1136 struct ATS_Address *aa = value;
1138 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1139 "Resetting interval for peer `%s' address %p from %llu to 0\n",
1140 GNUNET_i2s (&aa->peer), aa, aa->block_interval);
1142 aa->blocked_until = GNUNET_TIME_UNIT_ZERO_ABS;
1143 aa->block_interval = GNUNET_TIME_UNIT_ZERO;
1149 GAS_addresses_handle_backoff_reset (struct GAS_Addresses_Handle *handle,
1150 const struct GNUNET_PeerIdentity *peer)
1152 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1153 "Received `%s' for peer `%s'\n",
1157 GNUNET_break (GNUNET_SYSERR != GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses,
1165 GAS_addresses_change_preference (struct GAS_Addresses_Handle *handle,
1167 const struct GNUNET_PeerIdentity *peer,
1168 enum GNUNET_ATS_PreferenceKind kind,
1171 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1172 "Received `%s' for peer `%s' for client %p\n",
1173 "CHANGE PREFERENCE",
1174 GNUNET_i2s (peer), client);
1176 if (GNUNET_NO == handle->running)
1179 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains (handle->addresses,
1182 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1183 "Received `%s' for unknown peer `%s' from client %p\n",
1184 "CHANGE PREFERENCE",
1185 GNUNET_i2s (peer), client);
1189 /* Tell solver about update */
1190 handle->s_pref (handle->solver, client, peer, kind, score);
1195 * Load quotas for networks from configuration
1197 * @param cfg configuration handle
1198 * @param out_dest where to write outbound quotas
1199 * @param in_dest where to write inbound quotas
1200 * @param dest_length length of inbound and outbound arrays
1201 * @return number of networks loaded
1204 load_quotas (const struct GNUNET_CONFIGURATION_Handle *cfg, unsigned long long *out_dest, unsigned long long *in_dest, int dest_length)
1206 char *network_str[GNUNET_ATS_NetworkTypeCount] = GNUNET_ATS_NetworkTypeString;
1207 char * entry_in = NULL;
1208 char * entry_out = NULL;
1209 char * quota_out_str;
1210 char * quota_in_str;
1214 for (c = 0; (c < GNUNET_ATS_NetworkTypeCount) && (c < dest_length); c++)
1218 GNUNET_asprintf (&entry_out, "%s_QUOTA_OUT", network_str[c]);
1219 GNUNET_asprintf (&entry_in, "%s_QUOTA_IN", network_str[c]);
1222 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "ats", entry_out, "a_out_str))
1225 if (0 == strcmp(quota_out_str, GNUNET_ATS_MaxBandwidthString))
1227 out_dest[c] = GNUNET_ATS_MaxBandwidth;
1230 if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_STRINGS_fancy_size_to_bytes (quota_out_str, &out_dest[c])))
1232 if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "ats", entry_out, &out_dest[c])))
1235 if (GNUNET_NO == res)
1237 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Could not load quota for network `%s': `%s', assigning default bandwidth %llu\n"),
1238 network_str[c], quota_out_str, GNUNET_ATS_DefaultBandwidth);
1239 out_dest[c] = GNUNET_ATS_DefaultBandwidth;
1243 GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Outbound quota configure for network `%s' is %llu\n"),
1244 network_str[c], out_dest[c]);
1246 GNUNET_free (quota_out_str);
1250 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _("No outbound quota configured for network `%s', assigning default bandwidth %llu\n"),
1251 network_str[c], GNUNET_ATS_DefaultBandwidth);
1252 out_dest[c] = GNUNET_ATS_DefaultBandwidth;
1256 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "ats", entry_in, "a_in_str))
1259 if (0 == strcmp(quota_in_str, GNUNET_ATS_MaxBandwidthString))
1261 in_dest[c] = GNUNET_ATS_MaxBandwidth;
1264 if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_STRINGS_fancy_size_to_bytes (quota_in_str, &in_dest[c])))
1266 if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "ats", entry_in, &in_dest[c])))
1269 if (GNUNET_NO == res)
1271 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Could not load quota for network `%s': `%s', assigning default bandwidth %llu\n"),
1272 network_str[c], quota_in_str, GNUNET_ATS_DefaultBandwidth);
1273 in_dest[c] = GNUNET_ATS_DefaultBandwidth;
1277 GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Inbound quota configured for network `%s' is %llu\n"),
1278 network_str[c], in_dest[c]);
1280 GNUNET_free (quota_in_str);
1284 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _("No outbound quota configure for network `%s', assigning default bandwidth %llu\n"),
1285 network_str[c], GNUNET_ATS_DefaultBandwidth);
1286 out_dest[c] = GNUNET_ATS_DefaultBandwidth;
1288 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loaded quota for network `%s' (in/out): %llu %llu\n", network_str[c], in_dest[c], out_dest[c]);
1289 GNUNET_free (entry_out);
1290 GNUNET_free (entry_in);
1292 return GNUNET_ATS_NetworkTypeCount;
1297 bandwidth_changed_cb (void *cls, struct ATS_Address *address)
1299 struct GAS_Addresses_Handle *handle = cls;
1300 struct GAS_Addresses_Suggestion_Requests *cur;
1301 struct GNUNET_ATS_Information *ats;
1302 unsigned int ats_count;
1304 GNUNET_assert (handle != NULL);
1305 GNUNET_assert (address != NULL);
1307 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Bandwidth assignment changed for peer %s \n", GNUNET_i2s(&address->peer));
1310 ats_count = assemble_ats_information (address, &ats);
1312 /* Notify performance clients about changes to address */
1313 GAS_performance_notify_all_clients (&address->peer,
1315 address->addr, address->addr_len,
1316 address->session_id,
1318 address->assigned_bw_out,
1319 address->assigned_bw_in);
1320 cur = handle->r_head;
1323 if (0 == memcmp (&address->peer, &cur->id, sizeof (cur->id)))
1324 break; /* we have an address request pending*/
1329 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1330 "Nobody is interested in peer `%s' :(\n",GNUNET_i2s (&address->peer));
1335 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1336 "Sending bandwidth update for peer `%s'\n",GNUNET_i2s (&address->peer));
1338 /* *Notify scheduling clients about suggestion */
1339 GAS_scheduling_transmit_address_suggestion (&address->peer,
1341 address->addr, address->addr_len,
1342 address->session_id,
1344 address->assigned_bw_out,
1345 address->assigned_bw_in);
1351 * Initialize address subsystem.
1353 * @param cfg configuration to use
1354 * @param stats the statistics handle to use
1356 struct GAS_Addresses_Handle *
1357 GAS_addresses_init (const struct GNUNET_CONFIGURATION_Handle *cfg,
1358 const struct GNUNET_STATISTICS_Handle *stats)
1360 struct GAS_Addresses_Handle *ah;
1361 int quotas[GNUNET_ATS_NetworkTypeCount] = GNUNET_ATS_NetworkType;
1362 unsigned long long quotas_in[GNUNET_ATS_NetworkTypeCount];
1363 unsigned long long quotas_out[GNUNET_ATS_NetworkTypeCount];
1368 ah = GNUNET_malloc (sizeof (struct GAS_Addresses_Handle));
1369 ah->running = GNUNET_NO;
1371 ah->stat = (struct GNUNET_STATISTICS_Handle *) stats;
1372 /* Initialize the addresses database */
1373 ah->addresses = GNUNET_CONTAINER_multihashmap_create (128, GNUNET_NO);
1374 GNUNET_assert (NULL != ah->addresses);
1376 /* Figure out configured solution method */
1377 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_string (cfg, "ats", "MODE", &mode_str))
1379 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "No ressource assignment method configured, using simplistic approch\n");
1380 ah->ats_mode = MODE_SIMPLISTIC;
1384 for (c = 0; c < strlen (mode_str); c++)
1385 mode_str[c] = toupper (mode_str[c]);
1386 if (0 == strcmp (mode_str, "SIMPLISTIC"))
1388 ah->ats_mode = MODE_SIMPLISTIC;
1390 else if (0 == strcmp (mode_str, "MLP"))
1392 ah->ats_mode = MODE_MLP;
1394 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Assignment method `%s' configured, but GLPK is not availabe, please install \n", mode_str);
1395 ah->ats_mode = MODE_SIMPLISTIC;
1400 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid ressource assignment method `%s' configured, using simplistic approch\n", mode_str);
1401 ah->ats_mode = MODE_SIMPLISTIC;
1403 GNUNET_free (mode_str);
1405 /* Start configured solution method */
1406 switch (ah->ats_mode)
1409 /* Init the MLP solver with default values */
1411 ah->ats_mode = MODE_MLP;
1412 ah->s_init = &GAS_mlp_init;
1413 ah->s_add = &GAS_mlp_address_add;
1414 ah->s_update = &GAS_mlp_address_update;
1415 ah->s_get = &GAS_mlp_get_preferred_address;
1416 ah->s_get_stop = &GAS_mlp_stop_get_preferred_address;
1417 ah->s_pref = &GAS_mlp_address_change_preference;
1418 ah->s_del = &GAS_mlp_address_delete;
1419 ah->s_done = &GAS_mlp_done;
1425 case MODE_SIMPLISTIC:
1426 /* Init the simplistic solver with default values */
1427 ah->ats_mode = MODE_SIMPLISTIC;
1428 ah->s_init = &GAS_simplistic_init;
1429 ah->s_add = &GAS_simplistic_address_add;
1430 ah->s_update = &GAS_simplistic_address_update;
1431 ah->s_get = &GAS_simplistic_get_preferred_address;
1432 ah->s_get_stop = &GAS_simplistic_stop_get_preferred_address;
1433 ah->s_pref = &GAS_simplistic_address_change_preference;
1434 ah->s_del = &GAS_simplistic_address_delete;
1435 ah->s_done = &GAS_simplistic_done;
1436 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ATS started in %s mode\n", "SIMPLISTIC");
1443 GNUNET_assert (NULL != ah->s_init);
1444 GNUNET_assert (NULL != ah->s_add);
1445 GNUNET_assert (NULL != ah->s_update);
1446 GNUNET_assert (NULL != ah->s_get);
1447 GNUNET_assert (NULL != ah->s_get_stop);
1448 GNUNET_assert (NULL != ah->s_pref);
1449 GNUNET_assert (NULL != ah->s_del);
1450 GNUNET_assert (NULL != ah->s_done);
1452 quota_count = load_quotas(cfg, quotas_in, quotas_out, GNUNET_ATS_NetworkTypeCount);
1454 ah->solver = ah->s_init (cfg, stats, quotas, quotas_in, quotas_out, quota_count, &bandwidth_changed_cb, ah);
1455 if (NULL == ah->solver)
1457 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to initialize solver!\n");
1462 /* up and running */
1463 ah->running = GNUNET_YES;
1469 * Free memory of address.
1472 * @param key peer identity (unused)
1473 * @param value the 'struct ATS_Address' to free
1474 * @return GNUNET_OK (continue to iterate)
1477 free_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
1479 struct GAS_Addresses_Handle *handle = cls;
1480 struct ATS_Address *aa = value;
1481 handle->s_del (handle->solver, handle->addresses, aa, GNUNET_NO);
1482 destroy_address (handle, aa);
1488 GAS_addresses_destroy_all (struct GAS_Addresses_Handle *handle)
1490 if (GNUNET_NO == handle->running)
1493 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1497 if (handle->addresses != NULL)
1498 GNUNET_CONTAINER_multihashmap_iterate (handle->addresses, &free_address_it, handle);
1503 * Shutdown address subsystem.
1506 GAS_addresses_done (struct GAS_Addresses_Handle *handle)
1508 struct GAS_Addresses_Suggestion_Requests *cur;
1510 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1511 "Shutting down addresses\n");
1512 GNUNET_assert (NULL != handle);
1513 GAS_addresses_destroy_all (handle);
1514 handle->running = GNUNET_NO;
1515 GNUNET_CONTAINER_multihashmap_destroy (handle->addresses);
1516 handle->addresses = NULL;
1517 while (NULL != (cur = handle->r_head))
1519 GNUNET_CONTAINER_DLL_remove (handle->r_head, handle->r_tail, cur);
1522 handle->s_done (handle->solver);
1523 GNUNET_free (handle);
1524 /* Stop configured solution method */
1528 struct PeerIteratorContext
1530 GNUNET_ATS_Peer_Iterator it;
1532 struct GNUNET_CONTAINER_MultiHashMap *peers_returned;
1537 const struct GNUNET_HashCode * key,
1540 struct PeerIteratorContext *ip_ctx = cls;
1541 struct GNUNET_PeerIdentity tmp;
1543 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(ip_ctx->peers_returned, key))
1545 GNUNET_CONTAINER_multihashmap_put(ip_ctx->peers_returned, key, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
1546 tmp.hashPubKey = (*key);
1547 ip_ctx->it (ip_ctx->it_cls, &tmp);
1554 * Return all peers currently known to ATS
1556 * @param handle the address handle
1557 * @param p_it the iterator to call for every peer, callbach with id == NULL
1559 * @param p_it_cls the closure for the iterator
1562 GAS_addresses_iterate_peers (struct GAS_Addresses_Handle *handle, GNUNET_ATS_Peer_Iterator p_it, void *p_it_cls)
1564 struct PeerIteratorContext ip_ctx;
1569 GNUNET_assert (NULL != handle->addresses);
1571 size = GNUNET_CONTAINER_multihashmap_size(handle->addresses);
1575 ip_ctx.it_cls = p_it_cls;
1576 ip_ctx.peers_returned = GNUNET_CONTAINER_multihashmap_create (size, GNUNET_NO);
1577 GNUNET_CONTAINER_multihashmap_iterate (handle->addresses, &peer_it, &ip_ctx);
1578 GNUNET_CONTAINER_multihashmap_destroy (ip_ctx.peers_returned);
1580 p_it (p_it_cls, NULL);
1583 struct PeerInfoIteratorContext
1585 GNUNET_ATS_PeerInfo_Iterator it;
1591 peerinfo_it (void *cls,
1592 const struct GNUNET_HashCode * key,
1595 struct PeerInfoIteratorContext *pi_ctx = cls;
1596 struct ATS_Address *addr = (struct ATS_Address *) value;
1597 struct GNUNET_ATS_Information *ats;
1600 if (NULL != pi_ctx->it)
1602 ats_count = assemble_ats_information (addr, &ats);
1604 pi_ctx->it (pi_ctx->it_cls,
1607 addr->addr, addr->addr_len,
1610 addr->assigned_bw_out,
1611 addr->assigned_bw_in);
1619 * Return all peers currently known to ATS
1621 * @param handle the address handle
1622 * @param peer the respective peer
1623 * @param pi_it the iterator to call for every peer
1624 * @param pi_it_cls the closure for the iterator
1627 GAS_addresses_get_peer_info (struct GAS_Addresses_Handle *handle,
1628 const struct GNUNET_PeerIdentity *peer,
1629 GNUNET_ATS_PeerInfo_Iterator pi_it,
1632 struct PeerInfoIteratorContext pi_ctx;
1633 struct GNUNET_BANDWIDTH_Value32NBO zero_bw;
1634 GNUNET_assert (NULL != peer);
1635 GNUNET_assert (NULL != handle->addresses);
1637 return; /* does not make sense without callback */
1639 zero_bw = GNUNET_BANDWIDTH_value_init (0);
1641 pi_ctx.it_cls = pi_it_cls;
1643 GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey, &peerinfo_it, &pi_ctx);
1646 pi_it (pi_it_cls, NULL, NULL, NULL, 0, GNUNET_NO, NULL, 0, zero_bw, zero_bw);
1651 /* end of gnunet-service-ats_addresses.c */