2 This file is part of GNUnet.
3 (C) 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.
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-service-ats_addresses.h"
29 #include "gnunet-service-ats_scheduling.h"
33 struct GNUNET_PeerIdentity peer;
37 struct GNUNET_SERVER_Client *session_client;
47 struct GNUNET_TRANSPORT_ATS_Information * ats;
49 struct GNUNET_BANDWIDTH_Value32NBO bw_in;
51 struct GNUNET_BANDWIDTH_Value32NBO bw_out;
55 static struct GNUNET_CONTAINER_MultiHashMap * addresses;
58 struct CompareAddressContext
60 struct ATS_Address * search;
61 struct ATS_Address * result;
65 destroy_address (struct ATS_Address * addr)
67 GNUNET_free_non_null (addr->ats);
68 GNUNET_free (addr->plugin);
73 compare_address_it (void *cls,
74 const GNUNET_HashCode * key,
77 struct CompareAddressContext * cac = cls;
78 struct ATS_Address * aa = (struct ATS_Address *) value;
80 /* compare sessions */
81 if ((aa->session_client != cac->search->session_client) ||
82 (aa->session_id != cac->search->session_id))
85 if (aa->addr_len != cac->search->addr_len)
90 if (0 == strcmp(aa->plugin, cac->search->plugin))
95 if (0 == memcmp (aa->addr, cac->search->addr, aa->addr_len))
105 find_address (const struct GNUNET_PeerIdentity *peer,
106 struct ATS_Address * addr)
108 struct CompareAddressContext cac;
112 GNUNET_CONTAINER_multihashmap_get_multiple(addresses,
121 GAS_address_update (const struct GNUNET_PeerIdentity *peer,
122 const char *plugin_name,
123 const void *plugin_addr, size_t plugin_addr_len,
124 struct GNUNET_SERVER_Client *session_client,
126 const struct GNUNET_TRANSPORT_ATS_Information *atsi,
129 struct ATS_Address * aa;
130 struct ATS_Address * old;
132 aa = GNUNET_malloc (sizeof (struct ATS_Address) + plugin_addr_len);
133 aa->ats = GNUNET_malloc(atsi_count * sizeof (struct GNUNET_TRANSPORT_ATS_Information));
136 aa->addr_len = plugin_addr_len;
137 aa->ats_count = atsi_count;
138 memcpy (aa->ats, atsi, atsi_count * sizeof (struct GNUNET_TRANSPORT_ATS_Information));
140 memcpy (aa->addr, plugin_addr, plugin_addr_len);
141 aa->plugin = GNUNET_strdup (plugin_name);
142 aa->session_client = session_client;
143 aa->session_id = session_id;
145 old = find_address (peer, aa);
148 GNUNET_assert (GNUNET_OK ==
149 GNUNET_CONTAINER_multihashmap_put(addresses,
152 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
153 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
154 "Added new address for peer `%s' %X\n",
155 GNUNET_i2s (peer), aa);
159 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
160 "Updated existing address for peer `%s' %X \n",
161 GNUNET_i2s (peer), old);
162 GNUNET_free_non_null(old->ats);
166 old->ats_count = aa->ats_count;
167 GNUNET_free (aa->plugin);
174 remove_client (void *cls,
175 const GNUNET_HashCode * key,
178 struct GNUNET_SERVER_Client *client = cls;
179 struct ATS_Address * aa = (struct ATS_Address * ) value;
181 if (aa->session_client == client)
183 GNUNET_CONTAINER_multihashmap_remove(addresses, key, value);
184 destroy_address (aa);
192 GAS_address_client_disconnected (struct GNUNET_SERVER_Client *client)
194 if (addresses != NULL)
195 GNUNET_CONTAINER_multihashmap_iterate(addresses, &remove_client, client);
200 GAS_address_destroyed (const struct GNUNET_PeerIdentity *peer,
201 const char *plugin_name,
202 const void *plugin_addr, size_t plugin_addr_len,
203 struct GNUNET_SERVER_Client *session_client,
207 struct ATS_Address *aa;
208 struct ATS_Address *res;
210 aa = GNUNET_malloc (sizeof (struct ATS_Address) +
214 aa->addr_len = plugin_addr_len;
216 memcpy (aa->addr, plugin_addr, plugin_addr_len);
217 aa->plugin = GNUNET_strdup (plugin_name);
218 aa->session_client = session_client;
219 aa->session_id = session_id;
221 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
222 "Deleting address for peer `%s': `%s'\n",
223 GNUNET_i2s (peer), plugin_name);
225 res = find_address (peer, aa);
228 GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(addresses, &peer->hashPubKey, res));
229 destroy_address (aa);
230 destroy_address (res);
236 GAS_addresses_request_address (const struct GNUNET_PeerIdentity *peer)
238 struct ATS_Address * aa = NULL;
239 aa = GNUNET_CONTAINER_multihashmap_get (addresses, &peer->hashPubKey);
242 aa->bw_in.value__ = htonl (100000);
243 aa->bw_out.value__ = htonl (100000);
244 GAS_scheduling_transmit_address_suggestion (peer, aa->plugin, aa->addr, aa->addr_len, aa->session_client, aa->session_id, aa->ats, aa->ats_count, aa->bw_out, aa->bw_in);
247 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
248 "Cannot provide address for peer `%s'\n",
254 * Initialize address subsystem.
257 GAS_addresses_init ()
259 addresses = GNUNET_CONTAINER_multihashmap_create(128);
264 * Free memory of address.
267 * @param key peer identity (unused)
268 * @param value the 'struct ATS_Address' to free
269 * @return GNUNET_OK (continue to iterate)
272 free_address_it (void *cls,
273 const GNUNET_HashCode * key,
276 struct ATS_Address * aa = value;
277 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
278 "Freeing address for peer `%s' %X\n",
279 GNUNET_i2s (&aa->peer), aa);
280 GNUNET_CONTAINER_multihashmap_remove (addresses, key, value);
281 destroy_address (aa);
288 * Shutdown address subsystem.
291 GAS_addresses_done ()
293 GNUNET_CONTAINER_multihashmap_iterate (addresses, &free_address_it, NULL);
294 GNUNET_CONTAINER_multihashmap_destroy (addresses);
299 /* end of gnunet-service-ats_addresses.c */