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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
256 * Pending Address suggestion requests
258 struct GAS_Addresses_Suggestion_Requests
263 struct GAS_Addresses_Suggestion_Requests *next;
268 struct GAS_Addresses_Suggestion_Requests *prev;
273 struct GNUNET_PeerIdentity id;
277 * Handle for ATS address component
279 struct GAS_Addresses_Handle
284 struct GNUNET_STATISTICS_Handle *stat;
287 * A multihashmap to store all addresses
289 struct GNUNET_CONTAINER_MultiHashMap *addresses;
292 * Configure WAN quota in
294 unsigned long long wan_quota_in;
297 * Configure WAN quota out
299 unsigned long long wan_quota_out;
302 * Is ATS addresses running
307 * Configured ATS solver
317 * Address suggestion requests DLL head
319 struct GAS_Addresses_Suggestion_Requests *r_head;
322 * Address suggestion requests DLL tail
324 struct GAS_Addresses_Suggestion_Requests *r_tail;
326 /* Solver functions */
331 GAS_solver_init s_init;
334 * Add an address to the solver
336 GAS_solver_address_add s_add;
339 * Update address in solver
341 GAS_solver_address_update s_update;
344 * Get address from solver
346 GAS_solver_get_preferred_address s_get;
349 * Get address from solver
351 GAS_solver_stop_get_preferred_address s_get_stop;
354 * Delete address in solver
356 GAS_solver_address_delete s_del;
359 * Change preference for quality in solver
361 GAS_solver_address_change_preference s_pref;
366 GAS_solver_done s_done;
371 * Assemble ATS information from address
373 * @param aa source address
374 * @param dest destination
375 * @return number of elements
378 assemble_ats_information (const struct ATS_Address *aa, struct GNUNET_ATS_Information **dest)
380 unsigned int ats_count = GNUNET_ATS_PropertyCount - 1;
381 struct GNUNET_ATS_Information *ats = GNUNET_malloc (ats_count * sizeof (struct GNUNET_ATS_Information));
384 ats[0].type = ntohl(GNUNET_ATS_UTILIZATION_UP);
385 ats[0].value = aa->atsp_utilization_out.value__;
386 ats[1].type = ntohl(GNUNET_ATS_UTILIZATION_DOWN);
387 ats[1].value = aa->atsp_utilization_in.value__;
388 ats[2].type = ntohl(GNUNET_ATS_NETWORK_TYPE);
389 ats[2].value = ntohl(aa->atsp_network_type);
390 ats[3].type = ntohl(GNUNET_ATS_QUALITY_NET_DELAY);
391 ats[3].value = ntohl(aa->atsp_latency.rel_value);
392 ats[4].type = ntohl(GNUNET_ATS_QUALITY_NET_DISTANCE);
393 ats[4].value = ntohl(aa->atsp_distance);
394 ats[5].type = ntohl(GNUNET_ATS_COST_WAN);
395 ats[5].value = ntohl (aa->atsp_cost_wan);
396 ats[6].type = ntohl(GNUNET_ATS_COST_LAN);
397 ats[6].value = ntohl (aa->atsp_cost_lan);
398 ats[7].type = ntohl(GNUNET_ATS_COST_WLAN);
399 ats[7].value = ntohl (aa->atsp_cost_wlan);
404 * Disassemble ATS information and update address
406 * @param src source ATS information
407 * @param ats_count number of ATS information
408 * @param dest destination address
409 * @return GNUNET_YES if address was address updated, GNUNET_NO otherwise
412 disassemble_ats_information (const struct GNUNET_ATS_Information *src,
414 struct ATS_Address *dest)
417 int change = GNUNET_NO;
419 for (i = 0; i < ats_count; i++)
420 switch (ntohl (src[i].type))
422 case GNUNET_ATS_UTILIZATION_UP:
423 if (dest->atsp_utilization_out.value__ != src[i].value)
425 dest->atsp_utilization_out.value__ = src[i].value;
428 case GNUNET_ATS_UTILIZATION_DOWN:
429 if (dest->atsp_utilization_in.value__ != src[i].value)
431 dest->atsp_utilization_in.value__ = src[i].value;
434 case GNUNET_ATS_QUALITY_NET_DELAY:
435 if (dest->atsp_latency.rel_value != src[i].value)
437 dest->atsp_latency.rel_value = ntohl (src[i].value);
440 case GNUNET_ATS_QUALITY_NET_DISTANCE:
441 if (dest->atsp_distance!= src[i].value)
443 dest->atsp_distance = ntohl (src[i].value);
446 case GNUNET_ATS_COST_WAN:
447 if (dest->atsp_cost_wan != src[i].value)
449 dest->atsp_cost_wan = ntohl (src[i].value);
452 case GNUNET_ATS_COST_LAN:
453 if (dest->atsp_cost_lan != src[i].value)
455 dest->atsp_cost_lan = ntohl (src[i].value);
458 case GNUNET_ATS_COST_WLAN:
459 if (dest->atsp_cost_wlan != src[i].value)
461 dest->atsp_cost_wlan = ntohl (src[i].value);
464 case GNUNET_ATS_NETWORK_TYPE:
465 if (dest->atsp_network_type != src[i].value)
467 dest->atsp_network_type = ntohl (src[i].value);
470 case GNUNET_ATS_ARRAY_TERMINATOR:
473 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
474 "Received unsupported ATS type %u\n", ntohl (src[i].type));
482 * Free the given address
483 * @param addr address to destroy
486 free_address (struct ATS_Address *addr)
488 GNUNET_free (addr->plugin);
493 * Create a ATS_address with the given information
495 * @param plugin_name plugin
496 * @param plugin_addr address
497 * @param plugin_addr_len address length
498 * @param session_id session
499 * @return the ATS_Address
501 static struct ATS_Address *
502 create_address (const struct GNUNET_PeerIdentity *peer,
503 const char *plugin_name,
504 const void *plugin_addr, size_t plugin_addr_len,
507 struct ATS_Address *aa = NULL;
509 aa = GNUNET_malloc (sizeof (struct ATS_Address) + plugin_addr_len);
511 aa->addr_len = plugin_addr_len;
513 memcpy (&aa[1], plugin_addr, plugin_addr_len);
514 aa->plugin = GNUNET_strdup (plugin_name);
515 aa->session_id = session_id;
516 aa->active = GNUNET_NO;
517 aa->used = GNUNET_NO;
518 aa->solver_information = NULL;
519 aa->assigned_bw_in = GNUNET_BANDWIDTH_value_init(0);
520 aa->assigned_bw_out = GNUNET_BANDWIDTH_value_init(0);
526 * Destroy the given address.
528 * @param handle the address handle
529 * @param addr address to destroy
530 * @return GNUNET_YES if bandwidth allocations should be recalcualted
533 destroy_address (struct GAS_Addresses_Handle *handle, struct ATS_Address *addr)
538 GNUNET_assert (GNUNET_YES ==
539 GNUNET_CONTAINER_multihashmap_remove (handle->addresses,
540 &addr->peer.hashPubKey,
547 struct CompareAddressContext
549 const struct ATS_Address *search;
551 /* exact_address != NULL if address and session is equal */
552 struct ATS_Address *exact_address;
553 /* exact_address != NULL if address and session is 0 */
554 struct ATS_Address *base_address;
559 compare_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
561 struct CompareAddressContext *cac = cls;
562 struct ATS_Address *aa = value;
564 /* Find an matching exact address:
567 * aa->addr_len == cac->search->addr_len
568 * aa->plugin == cac->search->plugin
569 * aa->addr == cac->search->addr
570 * aa->session == cac->search->session
572 * return as exact address
574 if ((aa->addr_len == cac->search->addr_len) && (0 == strcmp (aa->plugin, cac->search->plugin)))
576 if ((0 == memcmp (aa->addr, cac->search->addr, aa->addr_len)) && (aa->session_id == cac->search->session_id))
577 cac->exact_address = aa;
580 /* Find an matching base address:
584 * aa->session_id == 0
587 * aa->addr_len == cac->search->addr_len
588 * aa->plugin == cac->search->plugin
589 * aa->addr == cac->search->addr
591 * return as base address
593 if ((aa->addr_len == cac->search->addr_len) && (0 == strcmp (aa->plugin, cac->search->plugin)))
595 if ((0 == memcmp (aa->addr, cac->search->addr, aa->addr_len)) && (aa->session_id == 0))
596 cac->base_address = aa;
599 /* Find an matching exact address based on session:
603 * cac->search->addr_len == 0
606 * aa->plugin == cac->search->plugin
607 * aa->session_id == cac->search->session_id
609 * return as exact address
611 if (0 == cac->search->addr_len)
613 if ((0 == strcmp (aa->plugin, cac->search->plugin)) && (aa->session_id == cac->search->session_id))
614 cac->exact_address = aa;
617 if (cac->exact_address == NULL)
618 return GNUNET_YES; /* Continue iteration to find exact address */
620 return GNUNET_NO; /* Stop iteration since we have an exact address */
625 * Find an existing equivalent address record.
626 * Compares by peer identity and network address OR by session ID
627 * (one of the two must match).
629 * @param handle the address handle
630 * @param peer peer to lookup addresses for
631 * @param addr existing address record
632 * @return existing address record, NULL for none
635 find_equivalent_address (struct GAS_Addresses_Handle *handle,
636 const struct GNUNET_PeerIdentity *peer,
637 const struct ATS_Address *addr)
639 struct CompareAddressContext cac;
641 cac.exact_address = NULL;
642 cac.base_address = NULL;
644 GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
645 &compare_address_it, &cac);
647 if (cac.exact_address == NULL)
648 return cac.base_address;
649 return cac.exact_address;
653 static struct ATS_Address *
654 lookup_address (struct GAS_Addresses_Handle *handle,
655 const struct GNUNET_PeerIdentity *peer,
656 const char *plugin_name,
657 const void *plugin_addr,
658 size_t plugin_addr_len,
660 const struct GNUNET_ATS_Information *atsi,
663 struct ATS_Address *aa;
664 struct ATS_Address *ea;
666 aa = create_address (peer,
668 plugin_addr, plugin_addr_len,
671 /* Get existing address or address with session == 0 */
672 ea = find_equivalent_address (handle, peer, aa);
678 else if (ea->session_id != session_id)
687 GAS_addresses_add (struct GAS_Addresses_Handle *handle,
688 const struct GNUNET_PeerIdentity *peer,
689 const char *plugin_name, const void *plugin_addr,
690 size_t plugin_addr_len, uint32_t session_id,
691 const struct GNUNET_ATS_Information *atsi,
694 struct ATS_Address *aa;
695 struct ATS_Address *ea;
696 struct GNUNET_ATS_Information *ats_new;
697 uint32_t ats_count_new;
698 unsigned int ats_res;
700 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
701 "Received `%s' for peer `%s'\n",
705 if (GNUNET_NO == handle->running)
708 GNUNET_assert (NULL != handle->addresses);
710 aa = create_address (peer, plugin_name, plugin_addr, plugin_addr_len,
713 if (atsi_count != (ats_res = disassemble_ats_information(atsi, atsi_count, aa)))
715 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
716 "While adding address: had %u ATS elements to add, could only add %u\n",
717 atsi_count, ats_res);
720 /* Get existing address or address with session == 0 */
721 ea = find_equivalent_address (handle, peer, aa);
724 /* We have a new address */
725 GNUNET_assert (GNUNET_OK ==
726 GNUNET_CONTAINER_multihashmap_put (handle->addresses,
727 &peer->hashPubKey, aa,
728 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
729 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Added new address for peer `%s' session id %u, %p\n",
730 GNUNET_i2s (peer), session_id, aa);
731 /* Tell solver about new address */
732 handle->s_add (handle->solver, handle->addresses, aa);
733 /* Notify performance clients about new address */
734 ats_count_new = assemble_ats_information (aa, &ats_new);
735 GAS_performance_notify_all_clients (&aa->peer,
737 aa->addr, aa->addr_len,
739 ats_new, ats_count_new,
742 GNUNET_free (ats_new);
745 GNUNET_free (aa->plugin);
748 if (ea->session_id != 0)
750 /* This address with the same session is already existing
751 * Should not happen */
752 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
753 "Added already existing address for peer `%s' `%s' %p with new session %u\n",
754 GNUNET_i2s (peer), plugin_name, session_id);
759 /* We have an address without an session, update this address */
761 /* Notify solver about update with atsi information and session */
762 handle->s_update (handle->solver, handle->addresses, ea, session_id, ea->used, atsi, atsi_count);
765 ea->session_id = session_id;
766 if (GNUNET_YES == disassemble_ats_information(atsi, atsi_count, ea))
768 ats_count_new = assemble_ats_information (aa, &ats_new);
769 GAS_performance_notify_all_clients (&aa->peer,
771 aa->addr, aa->addr_len,
773 ats_new, ats_count_new,
776 GNUNET_free (ats_new);
778 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
779 "Updated existing address for peer `%s' %p with new session %u\n",
780 GNUNET_i2s (peer), ea, session_id);
785 GAS_addresses_update (struct GAS_Addresses_Handle *handle,
786 const struct GNUNET_PeerIdentity *peer,
787 const char *plugin_name, const void *plugin_addr,
788 size_t plugin_addr_len, uint32_t session_id,
789 const struct GNUNET_ATS_Information *atsi,
792 struct ATS_Address *aa;
793 struct GNUNET_ATS_Information *ats_new;
794 uint32_t ats_count_new;
796 if (GNUNET_NO == handle->running)
799 GNUNET_assert (NULL != handle->addresses);
801 /* Get existing address */
802 aa = lookup_address (handle, peer, plugin_name, plugin_addr, plugin_addr_len,
803 session_id, atsi, atsi_count);
806 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Tried to update unknown address for peer `%s' `%s' session id %u\n",
807 GNUNET_i2s (peer), plugin_name, session_id);
812 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
813 "Received `%s' for peer `%s' address \n",
815 GNUNET_i2s (peer), aa);
817 /* Tell solver about update */
818 handle->s_update (handle->solver, handle->addresses, aa, session_id, aa->used, atsi, atsi_count);
821 if (GNUNET_YES == disassemble_ats_information (atsi, atsi_count, aa))
823 ats_count_new = assemble_ats_information (aa, &ats_new);
824 /* Notify performance clients about updated address */
825 GAS_performance_notify_all_clients (&aa->peer,
827 aa->addr, aa->addr_len,
829 ats_new, ats_count_new,
832 GNUNET_free (ats_new);
837 struct DestroyContext
839 struct ATS_Address *aa;
841 struct GAS_Addresses_Handle *handle;
844 * GNUNET_NO : full address
845 * GNUNET_YES : just session
854 * If session != 0, just the session is deleted, the address itself still exists
855 * If session == 0, remove full address
856 * If session == 0 and addrlen == 0, destroy inbound address
860 * @param value the 'struct ATS_Address'
861 * @return GNUNET_OK (continue to iterate)
864 destroy_by_session_id (void *cls, const struct GNUNET_HashCode * key, void *value)
866 struct DestroyContext *dc = cls;
867 struct GAS_Addresses_Handle *handle = dc->handle;
868 const struct ATS_Address *des = dc->aa;
869 struct ATS_Address *aa = value;
871 GNUNET_assert (0 == memcmp (&aa->peer, &des->peer,
872 sizeof (struct GNUNET_PeerIdentity)));
875 if (des->session_id == 0)
877 /* Session == 0, remove full address */
878 if ((0 == strcmp (des->plugin, aa->plugin)) &&
879 (aa->addr_len == des->addr_len) &&
880 (0 == memcmp (des->addr, aa->addr, aa->addr_len)))
883 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
884 "Deleting full address for peer `%s' session %u %p\n",
885 GNUNET_i2s (&aa->peer), aa->session_id, aa);
887 /* Notify solver about deletion */
888 handle->s_del (handle->solver, handle->addresses, aa, GNUNET_NO);
889 destroy_address (handle, aa);
890 dc->result = GNUNET_NO;
891 return GNUNET_OK; /* Continue iteration */
896 /* Session != 0, just remove session */
897 if (aa->session_id != des->session_id)
898 return GNUNET_OK; /* irrelevant */
900 if ((aa->session_id != 0) &&
901 (0 != strcmp (des->plugin, aa->plugin)))
903 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
904 "Different plugins during removal: `%s' vs `%s' \n",
905 des->plugin, aa->plugin);
910 if (aa->addr_len == 0)
912 /* Inbound connection died, delete full address */
913 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
914 "Deleting inbound address for peer `%s': `%s' session %u\n",
915 GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
917 /* Notify solver about deletion */
918 handle->s_del (handle->solver, handle->addresses, aa, GNUNET_NO);
919 destroy_address (handle, aa);
920 dc->result = GNUNET_NO;
921 return GNUNET_OK; /* Continue iteration */
926 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
927 "Deleting session for peer `%s': `%s' %u\n",
928 GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
929 /* Notify solver to delete session */
930 handle->s_del (handle->solver, handle->addresses, aa, GNUNET_YES);
939 GAS_addresses_destroy (struct GAS_Addresses_Handle *handle,
940 const struct GNUNET_PeerIdentity *peer,
941 const char *plugin_name, const void *plugin_addr,
942 size_t plugin_addr_len, uint32_t session_id)
944 struct ATS_Address *ea;
945 struct DestroyContext dc;
947 if (GNUNET_NO == handle->running)
950 /* Get existing address */
951 ea = lookup_address (handle, peer, plugin_name, plugin_addr, plugin_addr_len,
952 session_id, NULL, 0);
954 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
955 "Received `%s' for peer `%s' address %p session %u\n",
957 GNUNET_i2s (peer), ea, session_id);
961 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Tried to destroy unknown address for peer `%s' `%s' session id %u\n",
962 GNUNET_i2s (peer), plugin_name, session_id);
966 GNUNET_break (0 < strlen (plugin_name));
968 dc.aa = create_address (peer, plugin_name, plugin_addr, plugin_addr_len, session_id);
970 GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
971 &destroy_by_session_id, &dc);
972 free_address (dc.aa);
977 GAS_addresses_in_use (struct GAS_Addresses_Handle *handle,
978 const struct GNUNET_PeerIdentity *peer,
979 const char *plugin_name, const void *plugin_addr,
980 size_t plugin_addr_len, uint32_t session_id, int in_use)
982 struct ATS_Address *ea;
984 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
985 "Received `%s' for peer `%s'\n",
989 if (GNUNET_NO == handle->running)
990 return GNUNET_SYSERR;
992 ea = lookup_address (handle, peer, plugin_name,
993 plugin_addr, plugin_addr_len,
994 session_id, NULL, 0);
997 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
998 "Trying to set unknown address `%s', %s %u %s \n",
1000 plugin_name, session_id,
1001 (GNUNET_NO == in_use) ? "NO" : "YES");
1003 return GNUNET_SYSERR;
1005 if (ea->used == in_use)
1008 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1009 "Address in use called multiple times for peer `%s': %s -> %s \n",
1011 (GNUNET_NO == ea->used) ? "NO" : "YES",
1012 (GNUNET_NO == in_use) ? "NO" : "YES");
1013 return GNUNET_SYSERR;
1016 /* Tell solver about update */
1017 handle->s_update (handle->solver, handle->addresses, ea, session_id, in_use, NULL, 0);
1025 * Cancel address suggestions for a peer
1027 * @param handle the address handle
1028 * @param peer the respective peer
1031 GAS_addresses_request_address_cancel (struct GAS_Addresses_Handle *handle,
1032 const struct GNUNET_PeerIdentity *peer)
1034 struct GAS_Addresses_Suggestion_Requests *cur = handle->r_head;
1036 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1037 "Received request: `%s' for peer %s\n", "request_address_cancel", GNUNET_i2s (peer));
1041 if (0 == memcmp (peer, &cur->id, sizeof (cur->id)))
1048 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1049 "No address requests pending for peer `%s', cannot remove!\n", GNUNET_i2s (peer));
1052 handle->s_get_stop (handle->solver, handle->addresses, peer);
1053 GAS_addresses_handle_backoff_reset (handle, peer);
1054 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1055 "Removed request pending for peer `%s\n", GNUNET_i2s (peer));
1056 GNUNET_CONTAINER_DLL_remove (handle->r_head, handle->r_tail, cur);
1062 * Add an address suggestions for a peer
1064 * @param handle the address handle
1065 * @param peer the respective peer
1068 GAS_addresses_request_address (struct GAS_Addresses_Handle *handle,
1069 const struct GNUNET_PeerIdentity *peer)
1071 struct GAS_Addresses_Suggestion_Requests *cur = handle->r_head;
1072 struct ATS_Address *aa;
1073 struct GNUNET_ATS_Information *ats;
1074 unsigned int ats_count;
1076 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1077 "Received `%s' for peer `%s'\n",
1081 if (GNUNET_NO == handle->running)
1085 if (0 == memcmp (peer, &cur->id, sizeof (cur->id)))
1086 break; /* already suggesting */
1091 cur = GNUNET_malloc (sizeof (struct GAS_Addresses_Suggestion_Requests));
1093 GNUNET_CONTAINER_DLL_insert (handle->r_head, handle->r_tail, cur);
1096 /* Get prefered address from solver */
1097 aa = (struct ATS_Address *) handle->s_get (handle->solver, handle->addresses, peer);
1100 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1101 "Cannot suggest address for peer `%s'\n", GNUNET_i2s (peer));
1105 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1106 "Suggesting address %p for peer `%s'\n", aa, GNUNET_i2s (peer));
1108 ats_count = assemble_ats_information (aa, &ats);
1109 GAS_scheduling_transmit_address_suggestion (peer,
1111 aa->addr, aa->addr_len,
1114 aa->assigned_bw_out,
1115 aa->assigned_bw_in);
1117 aa->block_interval = GNUNET_TIME_relative_add (aa->block_interval, ATS_BLOCKING_DELTA);
1118 aa->blocked_until = GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get(), aa->block_interval);
1120 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1121 "Address %p ready for suggestion, block interval now %llu \n",
1122 aa, aa->block_interval);
1129 reset_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
1131 struct ATS_Address *aa = value;
1133 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1134 "Resetting interval for peer `%s' address %p from %llu to 0\n",
1135 GNUNET_i2s (&aa->peer), aa, aa->block_interval);
1137 aa->blocked_until = GNUNET_TIME_UNIT_ZERO_ABS;
1138 aa->block_interval = GNUNET_TIME_UNIT_ZERO;
1144 GAS_addresses_handle_backoff_reset (struct GAS_Addresses_Handle *handle,
1145 const struct GNUNET_PeerIdentity *peer)
1147 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1148 "Received `%s' for peer `%s'\n",
1152 GNUNET_break (GNUNET_SYSERR != GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses,
1160 GAS_addresses_change_preference (struct GAS_Addresses_Handle *handle,
1162 const struct GNUNET_PeerIdentity *peer,
1163 enum GNUNET_ATS_PreferenceKind kind,
1166 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1167 "Received `%s' for peer `%s' for client %p\n",
1168 "CHANGE PREFERENCE",
1169 GNUNET_i2s (peer), client);
1171 if (GNUNET_NO == handle->running)
1174 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains (handle->addresses,
1177 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1178 "Received `%s' for unknown peer `%s' from client %p\n",
1179 "CHANGE PREFERENCE",
1180 GNUNET_i2s (peer), client);
1184 /* Tell solver about update */
1185 handle->s_pref (handle->solver, client, peer, kind, score);
1190 * Load quotas for networks from configuration
1192 * @param cfg configuration handle
1193 * @param out_dest where to write outbound quotas
1194 * @param in_dest where to write inbound quotas
1195 * @param dest_length length of inbound and outbound arrays
1196 * @return number of networks loaded
1199 load_quotas (const struct GNUNET_CONFIGURATION_Handle *cfg, unsigned long long *out_dest, unsigned long long *in_dest, int dest_length)
1201 char *network_str[GNUNET_ATS_NetworkTypeCount] = GNUNET_ATS_NetworkTypeString;
1202 char * entry_in = NULL;
1203 char * entry_out = NULL;
1204 char * quota_out_str;
1205 char * quota_in_str;
1209 for (c = 0; (c < GNUNET_ATS_NetworkTypeCount) && (c < dest_length); c++)
1213 GNUNET_asprintf (&entry_out, "%s_QUOTA_OUT", network_str[c]);
1214 GNUNET_asprintf (&entry_in, "%s_QUOTA_IN", network_str[c]);
1217 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "ats", entry_out, "a_out_str))
1220 if (0 == strcmp(quota_out_str, GNUNET_ATS_MaxBandwidthString))
1222 out_dest[c] = GNUNET_ATS_MaxBandwidth;
1225 if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_STRINGS_fancy_size_to_bytes (quota_out_str, &out_dest[c])))
1227 if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "ats", entry_out, &out_dest[c])))
1230 if (GNUNET_NO == res)
1232 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Could not load quota for network `%s': `%s', assigning default bandwidth %llu\n"),
1233 network_str[c], quota_out_str, GNUNET_ATS_DefaultBandwidth);
1234 out_dest[c] = GNUNET_ATS_DefaultBandwidth;
1238 GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Outbound quota configure for network `%s' is %llu\n"),
1239 network_str[c], out_dest[c]);
1241 GNUNET_free (quota_out_str);
1245 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _("No outbound quota configured for network `%s', assigning default bandwidth %llu\n"),
1246 network_str[c], GNUNET_ATS_DefaultBandwidth);
1247 out_dest[c] = GNUNET_ATS_DefaultBandwidth;
1251 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "ats", entry_in, "a_in_str))
1254 if (0 == strcmp(quota_in_str, GNUNET_ATS_MaxBandwidthString))
1256 in_dest[c] = GNUNET_ATS_MaxBandwidth;
1259 if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_STRINGS_fancy_size_to_bytes (quota_in_str, &in_dest[c])))
1261 if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "ats", entry_in, &in_dest[c])))
1264 if (GNUNET_NO == res)
1266 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Could not load quota for network `%s': `%s', assigning default bandwidth %llu\n"),
1267 network_str[c], quota_in_str, GNUNET_ATS_DefaultBandwidth);
1268 in_dest[c] = GNUNET_ATS_DefaultBandwidth;
1272 GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Inbound quota configured for network `%s' is %llu\n"),
1273 network_str[c], in_dest[c]);
1275 GNUNET_free (quota_in_str);
1279 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _("No outbound quota configure for network `%s', assigning default bandwidth %llu\n"),
1280 network_str[c], GNUNET_ATS_DefaultBandwidth);
1281 out_dest[c] = GNUNET_ATS_DefaultBandwidth;
1283 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]);
1284 GNUNET_free (entry_out);
1285 GNUNET_free (entry_in);
1287 return GNUNET_ATS_NetworkTypeCount;
1292 bandwidth_changed_cb (void *cls, struct ATS_Address *address)
1294 struct GAS_Addresses_Handle *handle = cls;
1295 struct GAS_Addresses_Suggestion_Requests *cur;
1296 struct GNUNET_ATS_Information *ats;
1297 unsigned int ats_count;
1299 GNUNET_assert (handle != NULL);
1300 GNUNET_assert (address != NULL);
1302 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Bandwidth assignment changed for peer %s \n", GNUNET_i2s(&address->peer));
1305 ats_count = assemble_ats_information (address, &ats);
1307 /* Notify performance clients about changes to address */
1308 GAS_performance_notify_all_clients (&address->peer,
1310 address->addr, address->addr_len,
1311 address->session_id,
1313 address->assigned_bw_out,
1314 address->assigned_bw_in);
1315 cur = handle->r_head;
1318 if (0 == memcmp (&address->peer, &cur->id, sizeof (cur->id)))
1319 break; /* we have an address request pending*/
1324 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1325 "Nobody is interested in peer `%s' :(\n",GNUNET_i2s (&address->peer));
1330 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1331 "Sending bandwidth update for peer `%s'\n",GNUNET_i2s (&address->peer));
1333 /* *Notify scheduling clients about suggestion */
1334 GAS_scheduling_transmit_address_suggestion (&address->peer,
1336 address->addr, address->addr_len,
1337 address->session_id,
1339 address->assigned_bw_out,
1340 address->assigned_bw_in);
1346 * Initialize address subsystem.
1348 * @param cfg configuration to use
1349 * @param stats the statistics handle to use
1351 struct GAS_Addresses_Handle *
1352 GAS_addresses_init (const struct GNUNET_CONFIGURATION_Handle *cfg,
1353 const struct GNUNET_STATISTICS_Handle *stats)
1355 struct GAS_Addresses_Handle *ah;
1356 int quotas[GNUNET_ATS_NetworkTypeCount] = GNUNET_ATS_NetworkType;
1357 unsigned long long quotas_in[GNUNET_ATS_NetworkTypeCount];
1358 unsigned long long quotas_out[GNUNET_ATS_NetworkTypeCount];
1363 ah = GNUNET_malloc (sizeof (struct GAS_Addresses_Handle));
1364 ah->running = GNUNET_NO;
1366 ah->stat = (struct GNUNET_STATISTICS_Handle *) stats;
1367 /* Initialize the addresses database */
1368 ah->addresses = GNUNET_CONTAINER_multihashmap_create (128, GNUNET_NO);
1369 GNUNET_assert (NULL != ah->addresses);
1371 /* Figure out configured solution method */
1372 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_string (cfg, "ats", "MODE", &mode_str))
1374 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "No ressource assignment method configured, using simplistic approch\n");
1375 ah->ats_mode = MODE_SIMPLISTIC;
1379 for (c = 0; c < strlen (mode_str); c++)
1380 mode_str[c] = toupper (mode_str[c]);
1381 if (0 == strcmp (mode_str, "SIMPLISTIC"))
1383 ah->ats_mode = MODE_SIMPLISTIC;
1385 else if (0 == strcmp (mode_str, "MLP"))
1387 ah->ats_mode = MODE_MLP;
1389 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Assignment method `%s' configured, but GLPK is not availabe, please install \n", mode_str);
1390 ah->ats_mode = MODE_SIMPLISTIC;
1395 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid ressource assignment method `%s' configured, using simplistic approch\n", mode_str);
1396 ah->ats_mode = MODE_SIMPLISTIC;
1398 GNUNET_free (mode_str);
1400 /* Start configured solution method */
1401 switch (ah->ats_mode)
1404 /* Init the MLP solver with default values */
1406 ah->ats_mode = MODE_MLP;
1407 ah->s_init = &GAS_mlp_init;
1408 ah->s_add = &GAS_mlp_address_add;
1409 ah->s_update = &GAS_mlp_address_update;
1410 ah->s_get = &GAS_mlp_get_preferred_address;
1411 ah->s_get_stop = &GAS_mlp_stop_get_preferred_address;
1412 ah->s_pref = &GAS_mlp_address_change_preference;
1413 ah->s_del = &GAS_mlp_address_delete;
1414 ah->s_done = &GAS_mlp_done;
1420 case MODE_SIMPLISTIC:
1421 /* Init the simplistic solver with default values */
1422 ah->ats_mode = MODE_SIMPLISTIC;
1423 ah->s_init = &GAS_simplistic_init;
1424 ah->s_add = &GAS_simplistic_address_add;
1425 ah->s_update = &GAS_simplistic_address_update;
1426 ah->s_get = &GAS_simplistic_get_preferred_address;
1427 ah->s_get_stop = &GAS_simplistic_stop_get_preferred_address;
1428 ah->s_pref = &GAS_simplistic_address_change_preference;
1429 ah->s_del = &GAS_simplistic_address_delete;
1430 ah->s_done = &GAS_simplistic_done;
1431 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ATS started in %s mode\n", "SIMPLISTIC");
1438 GNUNET_assert (NULL != ah->s_init);
1439 GNUNET_assert (NULL != ah->s_add);
1440 GNUNET_assert (NULL != ah->s_update);
1441 GNUNET_assert (NULL != ah->s_get);
1442 GNUNET_assert (NULL != ah->s_get_stop);
1443 GNUNET_assert (NULL != ah->s_pref);
1444 GNUNET_assert (NULL != ah->s_del);
1445 GNUNET_assert (NULL != ah->s_done);
1447 quota_count = load_quotas(cfg, quotas_in, quotas_out, GNUNET_ATS_NetworkTypeCount);
1449 ah->solver = ah->s_init (cfg, stats, quotas, quotas_in, quotas_out, quota_count, &bandwidth_changed_cb, ah);
1450 if (NULL == ah->solver)
1452 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to initialize solver!\n");
1457 /* up and running */
1458 ah->running = GNUNET_YES;
1464 * Free memory of address.
1467 * @param key peer identity (unused)
1468 * @param value the 'struct ATS_Address' to free
1469 * @return GNUNET_OK (continue to iterate)
1472 free_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
1474 struct GAS_Addresses_Handle *handle = cls;
1475 struct ATS_Address *aa = value;
1476 handle->s_del (handle->solver, handle->addresses, aa, GNUNET_NO);
1477 destroy_address (handle, aa);
1483 GAS_addresses_destroy_all (struct GAS_Addresses_Handle *handle)
1485 if (GNUNET_NO == handle->running)
1488 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1492 if (handle->addresses != NULL)
1493 GNUNET_CONTAINER_multihashmap_iterate (handle->addresses, &free_address_it, handle);
1498 * Shutdown address subsystem.
1501 GAS_addresses_done (struct GAS_Addresses_Handle *handle)
1503 struct GAS_Addresses_Suggestion_Requests *cur;
1505 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1506 "Shutting down addresses\n");
1507 GNUNET_assert (NULL != handle);
1508 GAS_addresses_destroy_all (handle);
1509 handle->running = GNUNET_NO;
1510 GNUNET_CONTAINER_multihashmap_destroy (handle->addresses);
1511 handle->addresses = NULL;
1512 while (NULL != (cur = handle->r_head))
1514 GNUNET_CONTAINER_DLL_remove (handle->r_head, handle->r_tail, cur);
1517 handle->s_done (handle->solver);
1518 GNUNET_free (handle);
1519 /* Stop configured solution method */
1523 struct PeerIteratorContext
1525 GNUNET_ATS_Peer_Iterator it;
1527 struct GNUNET_CONTAINER_MultiHashMap *peers_returned;
1532 const struct GNUNET_HashCode * key,
1535 struct PeerIteratorContext *ip_ctx = cls;
1536 struct GNUNET_PeerIdentity tmp;
1538 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(ip_ctx->peers_returned, key))
1540 GNUNET_CONTAINER_multihashmap_put(ip_ctx->peers_returned, key, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
1541 tmp.hashPubKey = (*key);
1542 ip_ctx->it (ip_ctx->it_cls, &tmp);
1549 * Return all peers currently known to ATS
1551 * @param handle the address handle
1552 * @param p_it the iterator to call for every peer, callbach with id == NULL
1554 * @param p_it_cls the closure for the iterator
1557 GAS_addresses_iterate_peers (struct GAS_Addresses_Handle *handle, GNUNET_ATS_Peer_Iterator p_it, void *p_it_cls)
1559 struct PeerIteratorContext ip_ctx;
1564 GNUNET_assert (NULL != handle->addresses);
1566 size = GNUNET_CONTAINER_multihashmap_size(handle->addresses);
1570 ip_ctx.it_cls = p_it_cls;
1571 ip_ctx.peers_returned = GNUNET_CONTAINER_multihashmap_create (size, GNUNET_NO);
1572 GNUNET_CONTAINER_multihashmap_iterate (handle->addresses, &peer_it, &ip_ctx);
1573 GNUNET_CONTAINER_multihashmap_destroy (ip_ctx.peers_returned);
1575 p_it (p_it_cls, NULL);
1578 struct PeerInfoIteratorContext
1580 GNUNET_ATS_PeerInfo_Iterator it;
1586 peerinfo_it (void *cls,
1587 const struct GNUNET_HashCode * key,
1590 struct PeerInfoIteratorContext *pi_ctx = cls;
1591 struct ATS_Address *addr = (struct ATS_Address *) value;
1592 struct GNUNET_ATS_Information *ats;
1595 if (NULL != pi_ctx->it)
1597 ats_count = assemble_ats_information (addr, &ats);
1599 pi_ctx->it (pi_ctx->it_cls,
1602 addr->addr, addr->addr_len,
1605 addr->assigned_bw_out,
1606 addr->assigned_bw_in);
1614 * Return all peers currently known to ATS
1616 * @param handle the address handle
1617 * @param peer the respective peer
1618 * @param pi_it the iterator to call for every peer
1619 * @param pi_it_cls the closure for the iterator
1622 GAS_addresses_get_peer_info (struct GAS_Addresses_Handle *handle,
1623 const struct GNUNET_PeerIdentity *peer,
1624 GNUNET_ATS_PeerInfo_Iterator pi_it,
1627 struct PeerInfoIteratorContext pi_ctx;
1628 struct GNUNET_BANDWIDTH_Value32NBO zero_bw;
1629 GNUNET_assert (NULL != peer);
1630 GNUNET_assert (NULL != handle->addresses);
1632 return; /* does not make sense without callback */
1634 zero_bw = GNUNET_BANDWIDTH_value_init (0);
1636 pi_ctx.it_cls = pi_it_cls;
1638 GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey, &peerinfo_it, &pi_ctx);
1641 pi_it (pi_it_cls, NULL, NULL, NULL, 0, GNUNET_NO, NULL, 0, zero_bw, zero_bw);
1646 /* end of gnunet-service-ats_addresses.c */