2 This file is part of GNUnet.
3 (C) 2010,2011 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file include/gnunet_ats_service.h
22 * @brief automatic transport selection and outbound bandwidth determination
23 * @author Christian Grothoff
24 * @author Matthias Wachs
26 #ifndef GNUNET_ATS_SERVICE_H
27 #define GNUNET_ATS_SERVICE_H
29 #include "gnunet_constants.h"
30 #include "gnunet_util_lib.h"
31 #include "gnunet_hello_lib.h"
34 * Number of network types supported by ATS
36 #define GNUNET_ATS_NetworkTypeCount 5
39 * ATS network types as array initializer
41 #define GNUNET_ATS_NetworkType {GNUNET_ATS_NET_UNSPECIFIED, GNUNET_ATS_NET_LOOPBACK, GNUNET_ATS_NET_LAN, GNUNET_ATS_NET_WAN, GNUNET_ATS_NET_WLAN}
44 * ATS network types as string array initializer
46 #define GNUNET_ATS_NetworkTypeString {"UNSPECIFIED", "LOOPBACK", "LAN", "WAN", "WLAN"}
48 enum GNUNET_ATS_Network_Type
50 GNUNET_ATS_NET_UNSPECIFIED = 0,
51 GNUNET_ATS_NET_LOOPBACK = 1,
52 GNUNET_ATS_NET_LAN = 2,
53 GNUNET_ATS_NET_WAN = 3,
54 GNUNET_ATS_NET_WLAN = 4,
58 * Default bandwidth assigned to a network : 64 KB/s
60 #define GNUNET_ATS_DefaultBandwidth 65536
63 * Undefined value for a GNUNET_ATS_Property
65 #define GNUNET_ATS_VALUE_UNDEFINED UINT32_MAX
68 * String representation for GNUNET_ATS_VALUE_UNDEFINED
70 #define GNUNET_ATS_VALUE_UNDEFINED_STR "undefined"
73 * Maximum bandwidth assigned to a network : 4095 MB/s
75 #define GNUNET_ATS_MaxBandwidth UINT32_MAX
78 * Textual equivalent for GNUNET_ATS_MaxBandwidth
80 #define GNUNET_ATS_MaxBandwidthString "unlimited"
83 * Number of property types supported by ATS
85 #define GNUNET_ATS_PropertyCount 9
88 * ATS properties types as string array initializer
90 #define GNUNET_ATS_PropertyStrings {"Terminator", "Utilization up", "Utilization down", "Network type", "Delay", "Distance", "Cost WAN", "Cost LAN", "Cost WLAN"}
93 * Enum defining all known property types for ATS Enum values are used
94 * in the GNUNET_ATS_Information struct as
97 * Cost are always stored in uint32_t, so all units used to define costs
98 * have to be normalized to fit in uint32_t [0 .. UINT32_MAX-1]
100 * UINT32_MAX is reserved for uninitialized values GNUNET_ATS_VALUE_UNDEFINED
102 enum GNUNET_ATS_Property
109 GNUNET_ATS_ARRAY_TERMINATOR = 0,
112 * Actual traffic on this connection from the other peer to this peer.
114 * Unit: [bytes/second]
116 GNUNET_ATS_UTILIZATION_UP,
119 * Actual traffic on this connection from this peer to the other peer.
121 * Unit: [bytes/second]
123 GNUNET_ATS_UTILIZATION_DOWN,
126 * Is this address located in WAN, LAN or a loopback address
127 * Value is element of GNUNET_ATS_Network_Type
129 GNUNET_ATS_NETWORK_TYPE,
133 * Time between when the time packet is sent and the packet arrives
143 GNUNET_ATS_QUALITY_NET_DELAY,
146 * Distance on network layer (required for distance-vector routing).
150 GNUNET_ATS_QUALITY_NET_DISTANCE,
153 * Network overhead on WAN (Wide-Area Network)
155 * How many bytes are sent on the WAN when 1 kilobyte (1024 bytes)
156 * of application data is transmitted?
157 * A factor used with connect cost, bandwidth cost and energy cost
158 * to describe the overhead produced by the transport protocol
162 * Interpretation: less is better
166 * TCP/IPv4 over Ethernet: 1024 + 38 + 20 + 20 = 1102 [bytes/kb]
167 * TCP/IPv6 over Ethernet: 1024 + 38 + 20 + 40 = 1122 [bytes/kb]
168 * UDP/IPv4 over Ethernet: 1024 + 38 + 20 + 8 = 1090 [bytes/kb]
169 * UDP/IPv6 over Ethernet: 1024 + 38 + 40 + 8 = 1110 [bytes/kb]
174 * Network overhead on LAN (Local-Area Network)
176 * How many bytes are sent on the LAN when 1 kilobyte (1024 bytes)
177 * of application data is transmitted?
178 * A factor used with connect cost, bandwidth cost and energy cost
179 * to describe the overhead produced by the transport protocol
183 * Interpretation: less is better
187 * TCP/IPv4 over Ethernet: 1024 + 38 + 20 + 20 = 1102 [bytes/kb]
188 * TCP/IPv6 over Ethernet: 1024 + 38 + 20 + 40 = 1122 [bytes/kb]
189 * UDP/IPv4 over Ethernet: 1024 + 38 + 20 + 8 = 1090 [bytes/kb]
190 * UDP/IPv6 over Ethernet: 1024 + 38 + 40 + 8 = 1110 [bytes/kb]
195 * Network overhead on WLAN (Wireless Local Area Network)
197 * How many bytes are sent on the LAN when 1 kilobyte (1024 bytes)
198 * of application data is transmitted?
199 * A factor used with connect cost, bandwidth cost and energy cost
200 * to describe the overhead produced by the transport protocol
204 * Interpretation: less is better
208 * TCP/IPv4 over Ethernet: 1024 + 38 + 20 + 20 = 1102 [bytes/kb]
209 * TCP/IPv6 over Ethernet: 1024 + 38 + 20 + 40 = 1122 [bytes/kb]
210 * UDP/IPv4 over Ethernet: 1024 + 38 + 20 + 8 = 1090 [bytes/kb]
211 * UDP/IPv6 over Ethernet: 1024 + 38 + 40 + 8 = 1110 [bytes/kb]
214 /* Cost related values */
215 /* =================== */
217 * Volume based cost in financial units to transmit data
219 * Note: This value is not bound to a specific currency or unit and only
221 * "cent" just refers the smallest amount of money in the respective
226 * Interpretation: less is better
232 // GNUNET_ATS_COST_FINANCIAL_PER_VOLUME = 1,
234 * Time based cost in financial units to transmit data
236 * Note: This value is not bound to a specific currency or unit and only
238 * "cent" just refers the smallest amount of money in the respective
243 * Interpretation: less is better
247 * Dialup: 10 [cent/h]
249 // GNUNET_ATS_COST_FINANCIAL_PER_TIME = 2,
251 * Computational costs
253 * Effort of preparing data to be sent with this transport
254 * Includes encoding, encryption and conversion of data
255 * Partial values can be summed up: c_sum = c_enc + c_enc + c_conv
256 * Resulting values depend on local system properties, e.g. CPU
260 * Interpretation: less is better
264 * HTTPS with AES CBC-256: 7,382
265 * HTTPS with AES CBC-128: 5,279
266 * HTTPS with RC4-1024: 2,652
268 // GNUNET_ATS_COST_COMPUTATIONAL = 3,
272 * Energy consumption using this transport when sending with a certain
273 * power at a certain bitrate. This is only an approximation based on:
274 * Energy consumption E = P / D
277 * Power P in Watt (J/s)
278 * Datarate D in MBit/s
280 * Conversion between power P and dBm used by WLAN in radiotap's dBm TX power:
282 * Lp(dbm) = 10 log10 (P/ 1mW)
284 * => P = 1 mW * 10^(Lp(dbm)/10)
288 * Interpretation: less is better
293 * WLAN: 89 (600 mW @ 802.11g /w 54 MBit/s)
294 * Bluetooth: 267 (100 mW @ BT2.0 EDR /w 3 MBit/s)
296 // GNUNET_ATS_COST_ENERGY_CONSUMPTION = 4,
299 * How many bytes are transmitted to initiate a new connection using
304 * Interpretation: less is better
308 * UDP (No connection) :
310 * TCP (TCP 3-Way handshake):
311 * 220 bytes Ethernet, 172 bytes TCP/IP, 122 bytes TCP
312 * HTTP (TCP + Header) :
313 * 477 bytes Ethernet, 429 bytes TCP/IP, 374 bytes TCP, 278 bytes HTTP
314 * HTTPS HTTP+TLS Handshake:
315 * 2129 bytes Ethernet, 1975 bytes TCP/IP, 1755 bytes TCP, 1403 bytes HTTPS
318 // GNUNET_ATS_COST_CONNECT = 5,
322 * How many bandwidth is available to consume?
323 * Used to calculate which impact sending data with this transport has
327 * Interpretation: more is better
330 * LAN: 12,800 (100 MBit/s)
331 * WLAN: 6,912 (54 MBit/s)
332 * Dial-up: 8 (64 Kbit/s)
335 // GNUNET_ATS_COST_BANDWITH_AVAILABLE = 6,
339 * How many bytes are sent over the wire when 1 kilobyte (1024 bytes)
340 * of application data is transmitted?
341 * A factor used with connect cost, bandwidth cost and energy cost
342 * to describe the overhead produced by the transport protocol
346 * Interpretation: less is better
350 * TCP/IPv4 over Ethernet: 1024 + 38 + 20 + 20 = 1102 [bytes/kb]
351 * TCP/IPv6 over Ethernet: 1024 + 38 + 20 + 40 = 1122 [bytes/kb]
352 * UDP/IPv4 over Ethernet: 1024 + 38 + 20 + 8 = 1090 [bytes/kb]
353 * UDP/IPv6 over Ethernet: 1024 + 38 + 40 + 8 = 1110 [bytes/kb]
355 // GNUNET_ATS_COST_NETWORK_OVERHEAD = 7,
356 /* Quality related values */
357 /* ====================== */
358 /* Physical layer quality properties */
360 * Signal strength on physical layer
364 // GNUNET_ATS_QUALITY_PHY_SIGNAL_STRENGTH = 1025,
366 * Collision rate on physical layer
370 // GNUNET_ATS_QUALITY_PHY_COLLISION_RATE = 1026,
372 * Error rate on physical layer
376 // GNUNET_ATS_QUALITY_PHY_ERROR_RATE = 1027,
379 * Time variations of the delay
380 * 1st derivative of a delay function
384 // GNUNET_ATS_QUALITY_NET_JITTER = 1029,
386 * Error rate on network layer
395 * Note: This numbers are just assumptions as an example, not
396 * measured or somehow determined
398 // GNUNET_ATS_QUALITY_NET_ERRORRATE = 1030,
400 * Drop rate on network layer
401 * Bytes actively dismissed by a network component during transmission
402 * Reasons for dropped data can be full queues, congestion, quota violations...
411 * Note: This numbers are just assumptions as an example, not
412 * measured or somehow determined
414 // GNUNET_ATS_QUALITY_NET_DROPRATE = 1031,
416 * Loss rate on network layer
417 * Bytes lost during transmission
418 * Reasons can be collisions, ...
427 * Note: This numbers are just assumptions as an example, not measured
428 * or somehow determined
430 // GNUNET_ATS_QUALITY_NET_LOSSRATE = 1032,
432 * Throughput on network layer
443 // GNUNET_ATS_QUALITY_NET_THROUGHPUT = 1033,
444 /* Availability related values */
445 /* =========================== */
447 * Is a peer reachable?
449 // GNUNET_ATS_AVAILABILITY_REACHABLE = 2048,
451 * Is there a connection established to a peer using this transport
453 // GNUNET_ATS_AVAILABILITY_CONNECTED = 2049
457 * Number of ATS quality properties
459 #define GNUNET_ATS_QualityPropertiesCount 2
462 * ATS quality properties as array initializer
464 #define GNUNET_ATS_QualityProperties {GNUNET_ATS_QUALITY_NET_DELAY, GNUNET_ATS_QUALITY_NET_DISTANCE}
467 * ATS quality properties as string array initializer
469 #define GNUNET_ATS_QualityPropertiesString {"Delay", "Distance"}
472 GNUNET_NETWORK_STRUCT_BEGIN
475 * struct used to communicate the transport's properties like cost and
476 * quality of service as well as high-level constraints on resource
480 * +-----------+ Constraints | | Plugin properties +---------+
481 * | Highlevel |------------> |ATS| <------------------|Transport|
482 * | Component | ATS struct | | ATS struct | Plugin |
483 * +-----------+ | | +---------+
486 * This structure will be used by transport plugins to communicate
487 * costs to ATS or by higher level components to tell ATS their
488 * constraints. Always a pair of (GNUNET_ATS_Property,
489 * uint32_t value). Value is always uint32_t, so all units used to
490 * define costs have to be normalized to fit uint32_t.
492 struct GNUNET_ATS_Information
495 * ATS property type, in network byte order.
497 uint32_t type GNUNET_PACKED;
500 * ATS property value, in network byte order.
502 uint32_t value GNUNET_PACKED;
504 GNUNET_NETWORK_STRUCT_END
507 /* ******************************** Scheduling API ***************************** */
510 * Handle to the ATS subsystem for bandwidth/transport scheduling information.
512 struct GNUNET_ATS_SchedulingHandle;
515 * Handle for address suggestion requests
518 struct GNUNET_ATS_SuggestHandle;
523 * Opaque session handle, defined by plugins. Contents not known to ATS.
530 * Signature of a function called by ATS with the current bandwidth
531 * and address preferences as determined by ATS.
534 * @param address suggested address (including peer identity of the peer)
535 * @param session session to use
536 * @param bandwidth_out assigned outbound bandwidth for the connection
537 * @param bandwidth_in assigned inbound bandwidth for the connection
538 * @param ats performance data for the address (as far as known)
539 * @param ats_count number of performance records in 'ats'
541 typedef void (*GNUNET_ATS_AddressSuggestionCallback) (void *cls,
543 GNUNET_HELLO_Address *
545 struct Session * session,
547 GNUNET_BANDWIDTH_Value32NBO
550 GNUNET_BANDWIDTH_Value32NBO
553 GNUNET_ATS_Information *
554 ats, uint32_t ats_count);
558 * Initialize the ATS subsystem.
560 * @param cfg configuration to use
561 * @param suggest_cb notification to call whenever the suggestation changed
562 * @param suggest_cb_cls closure for 'suggest_cb'
563 * @return ats context
565 struct GNUNET_ATS_SchedulingHandle *
566 GNUNET_ATS_scheduling_init (const struct GNUNET_CONFIGURATION_Handle *cfg,
567 GNUNET_ATS_AddressSuggestionCallback suggest_cb,
568 void *suggest_cb_cls);
572 * Client is done with ATS scheduling, release resources.
574 * @param sh handle to release
577 GNUNET_ATS_scheduling_done (struct GNUNET_ATS_SchedulingHandle *sh);
581 * We would like to reset the address suggestion block time for this
585 * @param peer identity of the peer we want to reset
588 GNUNET_ATS_reset_backoff (struct GNUNET_ATS_SchedulingHandle *sh,
589 const struct GNUNET_PeerIdentity *peer);
592 * We would like to establish a new connection with a peer. ATS
593 * should suggest a good address to begin with.
596 * @param peer identity of the peer we need an address for
597 * @return suggestion handle
599 struct GNUNET_ATS_SuggestHandle *
600 GNUNET_ATS_suggest_address (struct GNUNET_ATS_SchedulingHandle *sh,
601 const struct GNUNET_PeerIdentity *peer);
605 * We want to cancel ATS suggesting addresses for a peer.
608 * @param peer identity of the peer
611 GNUNET_ATS_suggest_address_cancel (struct GNUNET_ATS_SchedulingHandle *sh,
612 const struct GNUNET_PeerIdentity *peer);
616 * Convert a GNUNET_ATS_NetworkType to a string
618 * @param net the network type
619 * @return a string or NULL if invalid
622 GNUNET_ATS_print_network_type (uint32_t net);
625 * Returns where the address is located: LAN or WAN or ...
626 * @param sh the GNUNET_ATS_SchedulingHandle handle
627 * @param addr address
628 * @param addrlen address length
629 * @return location as GNUNET_ATS_Information
631 struct GNUNET_ATS_Information
632 GNUNET_ATS_address_get_type (struct GNUNET_ATS_SchedulingHandle *sh,
633 const struct sockaddr * addr,
637 * We have a new address ATS should know. Addresses have to be added with this
638 * function before they can be: updated, set in use and destroyed
641 * @param address the address
642 * @param session session handle (if available)
643 * @param ats performance data for the address
644 * @param ats_count number of performance records in 'ats'
647 GNUNET_ATS_address_add (struct GNUNET_ATS_SchedulingHandle *sh,
648 const struct GNUNET_HELLO_Address *address,
649 struct Session *session,
650 const struct GNUNET_ATS_Information *ats,
655 * We have updated performance statistics for a given address. Note
656 * that this function can be called for addresses that are currently
657 * in use as well as addresses that are valid but not actively in use.
658 * Furthermore, the peer may not even be connected to us right now (in
659 * which case the call may be ignored or the information may be stored
660 * for later use). Update bandwidth assignments.
663 * @param address updated address
664 * @param session session handle (if available)
665 * @param ats performance data for the address
666 * @param ats_count number of performance records in 'ats'
669 GNUNET_ATS_address_update (struct GNUNET_ATS_SchedulingHandle *sh,
670 const struct GNUNET_HELLO_Address *address,
671 struct Session *session,
672 const struct GNUNET_ATS_Information *ats,
677 * An address is now in use or not used any more.
680 * @param address the address
681 * @param session session handle
682 * @param in_use GNUNET_YES if this address is now used, GNUNET_NO
683 * if address is not used any more
686 GNUNET_ATS_address_in_use (struct GNUNET_ATS_SchedulingHandle *sh,
687 const struct GNUNET_HELLO_Address *address,
688 struct Session *session, int in_use);
692 * A session got destroyed, stop including it as a valid address.
695 * @param address the address
696 * @param session session handle that is no longer valid (if available)
699 GNUNET_ATS_address_destroyed (struct GNUNET_ATS_SchedulingHandle *sh,
700 const struct GNUNET_HELLO_Address *address,
701 struct Session *session);
704 /* ******************************** Performance API ***************************** */
707 * ATS Handle to obtain and/or modify performance information.
709 struct GNUNET_ATS_PerformanceHandle;
712 * Signature of a function that is called with QoS information about an address.
715 * @param address the address
716 * @param address_active is this address actively used to maintain a connection
718 * @param bandwidth_out assigned outbound bandwidth for the connection
719 * @param bandwidth_in assigned inbound bandwidth for the connection
720 * @param ats performance data for the address (as far as known)
721 * @param ats_count number of performance records in 'ats'
723 typedef void (*GNUNET_ATS_AddressInformationCallback) (void *cls,
724 const struct GNUNET_HELLO_Address *address,
726 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
727 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
728 const struct GNUNET_ATS_Information *ats,
732 * Handle for an address listing operation
734 struct GNUNET_ATS_AddressListHandle;
738 * Get handle to access performance API of the ATS subsystem.
740 * @param cfg configuration to use
741 * @param addr_info_cb callback called when performance characteristics for
743 * @param addr_info_cb_cls closure for infocb
744 * @return ats performance context
746 struct GNUNET_ATS_PerformanceHandle *
747 GNUNET_ATS_performance_init (const struct GNUNET_CONFIGURATION_Handle *cfg,
748 GNUNET_ATS_AddressInformationCallback addr_info_cb,
749 void *addr_info_cb_cls);
753 * Get information about addresses known to the ATS subsystem.
755 * @param handle the performance handle to use
756 * @param peer peer idm can be NULL for all peers
757 * @param all GNUNET_YES to get information about all addresses or GNUNET_NO to
758 * get only address currently used
759 * @param infocb callback to call with the addresses,
760 * will callback with address == NULL when done
761 * @param infocb_cls closure for infocb
762 * @return ats performance context
764 struct GNUNET_ATS_AddressListHandle *
765 GNUNET_ATS_performance_list_addresses (struct GNUNET_ATS_PerformanceHandle *handle,
766 const struct GNUNET_PeerIdentity *peer,
768 GNUNET_ATS_AddressInformationCallback infocb,
773 * Cancel a pending address listing operation
775 * @param handle the GNUNET_ATS_AddressListHandle handle to cancel
778 GNUNET_ATS_performance_list_addresses_cancel (struct GNUNET_ATS_AddressListHandle *handle);
782 * Client is done using the ATS performance subsystem, release resources.
787 GNUNET_ATS_performance_done (struct GNUNET_ATS_PerformanceHandle *ph);
791 * Function called with reservation result.
794 * @param peer identifies the peer
795 * @param amount set to the amount that was actually reserved or unreserved;
796 * either the full requested amount or zero (no partial reservations)
797 * @param res_delay if the reservation could not be satisfied (amount was 0), how
798 * long should the client wait until re-trying?
800 typedef void (*GNUNET_ATS_ReservationCallback) (void *cls,
801 const struct GNUNET_PeerIdentity
802 * peer, int32_t amount,
803 struct GNUNET_TIME_Relative
809 * Context that can be used to cancel a peer information request.
811 struct GNUNET_ATS_ReservationContext;
815 * Reserve inbound bandwidth from the given peer. ATS will look at
816 * the current amount of traffic we receive from the peer and ensure
817 * that the peer could add 'amount' of data to its stream.
819 * @param ph performance handle
820 * @param peer identifies the peer
821 * @param amount reserve N bytes for receiving, negative
822 * amounts can be used to undo a (recent) reservation;
823 * @param rcb function to call with the resulting reservation information
824 * @param rcb_cls closure for info
825 * @return NULL on error
826 * @deprecated will be replaced soon
828 struct GNUNET_ATS_ReservationContext *
829 GNUNET_ATS_reserve_bandwidth (struct GNUNET_ATS_PerformanceHandle *ph,
830 const struct GNUNET_PeerIdentity *peer,
832 GNUNET_ATS_ReservationCallback rcb,
837 * Cancel request for reserving bandwidth.
839 * @param rc context returned by the original GNUNET_ATS_reserve_bandwidth call
842 GNUNET_ATS_reserve_bandwidth_cancel (struct GNUNET_ATS_ReservationContext *rc);
846 * Number of preference types supported by ATS
848 #define GNUNET_ATS_PreferenceCount 3
851 * ATS preference types as array initializer
853 #define GNUNET_ATS_PreferenceType {GNUNET_ATS_PREFERENCE_END, GNUNET_ATS_PREFERENCE_BANDWIDTH, GNUNET_ATS_PREFERENCE_LATENCY}
856 * ATS preference types as string array initializer
858 #define GNUNET_ATS_PreferenceTypeString {"END", "BANDWIDTH", "LATENCY"}
862 * Enum defining all known preference categories.
864 enum GNUNET_ATS_PreferenceKind
868 * End of preference list.
870 GNUNET_ATS_PREFERENCE_END = 0,
873 * Change the peer's bandwidth value (value per byte of bandwidth in
874 * the goal function) to the given amount. The argument is followed
875 * by a double value giving the desired value (can be negative).
876 * Preference changes are forgotten if peers disconnect.
878 GNUNET_ATS_PREFERENCE_BANDWIDTH,
881 * Change the peer's latency value to the given amount. The
882 * argument is followed by a double value giving the desired value
883 * (can be negative). The absolute score in the goal function is
884 * the inverse of the latency in ms (minimum: 1 ms) multiplied by
885 * the latency preferences.
887 GNUNET_ATS_PREFERENCE_LATENCY
891 * Convert a GNUNET_ATS_PreferenceType to a string
893 * @param type the preference type
894 * @return a string or NULL if invalid
897 GNUNET_ATS_print_preference_type (uint32_t type);
900 * Change preferences for the given peer. Preference changes are forgotten if peers
903 * @param ph performance handle
904 * @param peer identifies the peer
905 * @param ... 0-terminated specification of the desired changes
908 GNUNET_ATS_change_preference (struct GNUNET_ATS_PerformanceHandle *ph,
909 const struct GNUNET_PeerIdentity *peer, ...);
914 /* end of file gnunet-service-transport_ats.h */