- GNUNET_free(addr->plugin);
- GNUNET_free_non_null(addr->atsi);
- GNUNET_free(addr);
-}
-
-
-/**
- * Create a ATS_address with the given information
- *
- * @param peer peer
- * @param plugin_name plugin
- * @param plugin_addr address
- * @param plugin_addr_len address length
- * @param local_address_info additional local info for the address
- * @param session_id session identifier, can never be 0
- * @return the ATS_Address
- */
-static struct ATS_Address *
-create_address (const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name,
- const void *plugin_addr,
- size_t plugin_addr_len,
- uint32_t local_address_info,
- uint32_t session_id)
-{
- struct ATS_Address *aa;
- unsigned int c1;
- unsigned int c2;
-
- aa = GNUNET_malloc (sizeof (struct ATS_Address) + plugin_addr_len);
- aa->peer = *peer;
- aa->addr_len = plugin_addr_len;
- aa->addr = &aa[1];
- memcpy (&aa[1], plugin_addr, plugin_addr_len);
- aa->plugin = GNUNET_strdup (plugin_name);
- aa->session_id = session_id;
- aa->local_address_info = local_address_info;
-
- for (c1 = 0; c1 < GNUNET_ATS_QualityPropertiesCount; c1++)
- {
- aa->atsin[c1].avg_queue_index = 0;
- for (c2 = 0; c2 < GAS_normalization_queue_length; c2++)
- aa->atsin[c1].atsi_abs[c2] = GNUNET_ATS_VALUE_UNDEFINED;
- }
- return aa;
-}
-
-
-/**
- * Closure for #compare_address_it()
- */
-struct CompareAddressContext
-{
- const struct ATS_Address *search;
-
- /* exact_address != NULL if address and session is equal */
- struct ATS_Address *exact_address;
- /* exact_address != NULL if address and session is 0 */
- struct ATS_Address *base_address;
-};
-
-
-/**
- * Comapre addresses.
- *
- * @param cls a CompareAddressContext containin the source address
- * @param key peer id
- * @param value the address to compare with
- * @return #GNUNET_YES to continue, #GNUNET_NO if address is founce
- */
-static int
-compare_address_it (void *cls,
- const struct GNUNET_PeerIdentity *key,
- void *value)
-{
- struct CompareAddressContext *cac = cls;
- struct ATS_Address *aa = value;
-
- /* Find an matching exact address:
- *
- * Compare by:
- * aa->addr_len == cac->search->addr_len
- * aa->plugin == cac->search->plugin
- * aa->addr == cac->search->addr
- * aa->session == cac->search->session
- *
- * return as exact address
- */
- if ((aa->addr_len == cac->search->addr_len)
- && (0 == strcmp (aa->plugin, cac->search->plugin)))
- {
- if ((0 == memcmp (aa->addr, cac->search->addr, aa->addr_len))
- && (aa->session_id == cac->search->session_id))
- cac->exact_address = aa;
- }
-
- /* Find an matching base address:
- *
- * Properties:
- *
- * aa->session_id == 0
- *
- * Compare by:
- * aa->addr_len == cac->search->addr_len
- * aa->plugin == cac->search->plugin
- * aa->addr == cac->search->addr
- *
- * return as base address
- */
- if ((aa->addr_len == cac->search->addr_len)
- && (0 == strcmp (aa->plugin, cac->search->plugin)))
- {
- if ((0 == memcmp (aa->addr, cac->search->addr, aa->addr_len))
- && (aa->session_id == 0))
- cac->base_address = aa;
- }
-
- /* Find an matching exact address based on session:
- *
- * Properties:
- *
- * cac->search->addr_len == 0
- *
- * Compare by:
- * aa->plugin == cac->search->plugin
- * aa->session_id == cac->search->session_id
- *
- * return as exact address
- */
- if (0 == cac->search->addr_len)
- {
- if ((0 == strcmp (aa->plugin, cac->search->plugin))
- && (aa->session_id == cac->search->session_id))
- cac->exact_address = aa;
- }
-
- if (cac->exact_address == NULL )
- return GNUNET_YES; /* Continue iteration to find exact address */
- else
- return GNUNET_NO; /* Stop iteration since we have an exact address */
-}
-
-
-/**
- * Find an existing equivalent address record.
- * Compares by peer identity and network address OR by session ID
- * (one of the two must match).
- *
- * @param handle the address handle
- * @param peer peer to lookup addresses for
- * @param addr existing address record
- * @return existing address record, NULL for none
- */
-struct ATS_Address *
-find_equivalent_address (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer,
- const struct ATS_Address *addr)
-{
- struct CompareAddressContext cac;
-
- cac.exact_address = NULL;
- cac.base_address = NULL;
- cac.search = addr;
- GNUNET_CONTAINER_multipeermap_get_multiple (handle->addresses,
- peer,
- &compare_address_it, &cac);
-
- if (cac.exact_address == NULL)
- return cac.base_address;
- return cac.exact_address;
-}
-
-
-/**
- * Find the exact address
- *
- * @param handle the address handle to use
- * @param peer peer
- * @param plugin_name transport plugin name
- * @param plugin_addr plugin address
- * @param plugin_addr_len length of the plugin address
- * @param local_address_info the local address for the address
- * @param session_id session id, can never be 0
- * @return an ATS_address or NULL
- */
-static struct ATS_Address *
-find_exact_address (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name,
- const void *plugin_addr,
- size_t plugin_addr_len,
- uint32_t local_address_info,
- uint32_t session_id)
-{
- struct ATS_Address *aa;
- struct ATS_Address *ea;
-
- aa = create_address (peer,
- plugin_name,
- plugin_addr,
- plugin_addr_len,
- local_address_info,
- session_id);
-
- /* Get existing address or address with session == 0 */
- ea = find_equivalent_address (handle, peer, aa);
- free_address (aa);
- if (ea == NULL)
- return NULL;
- else if (ea->session_id != session_id)
- return NULL;
- return ea;
-}
-
-
-/**
- * Function allowing the solver to obtain normalized preference
- * values from solver
- *
- * @param cls unused
- * @param id the peer to return the normalized properties for
- * @return array of double values with |GNUNET_ATS_PreferenceCount| elements
- */
-const double *
-get_preferences_cb (void *cls,
- const struct GNUNET_PeerIdentity *id)
-{
- return GAS_normalization_get_preferences_by_peer (id);
-}
-
-
-/**
- * Function allowing the solver to obtain normalized property
- * values for an address from solver
- *
- * @param cls unused
- * @param address the address
- * @return array of double values with |GNUNET_ATS_QualityPropertiesCount| elements
- */
-const double *
-get_property_cb (void *cls, const struct ATS_Address *address)
-{
- return GAS_normalization_get_properties ((struct ATS_Address *) address);
-}
-
-
-/**
- * Extract an ATS performance info from an address
- *
- * @param address the address
- * @param type the type to extract in HBO
- * @return the value in HBO or #GNUNET_ATS_VALUE_UNDEFINED in HBO if value does not exist
- */
-static int
-get_performance_info (struct ATS_Address *address, uint32_t type)
-{
- int c1;
- GNUNET_assert(NULL != address);
-
- if ((NULL == address->atsi) || (0 == address->atsi_count))
- return GNUNET_ATS_VALUE_UNDEFINED;
-
- for (c1 = 0; c1 < address->atsi_count; c1++)
- {
- if (ntohl (address->atsi[c1].type) == type)
- return ntohl (address->atsi[c1].value);
- }
- return GNUNET_ATS_VALUE_UNDEFINED;
-}
-
-
-/**
- * Add a new address for a peer.
- *
- * @param handle the address handle to use
- * @param peer peer
- * @param plugin_name transport plugin name
- * @param plugin_addr plugin address
- * @param plugin_addr_len length of the plugin address in @a plugin_addr
- * @param local_address_info the local address for the address
- * @param session_id session id, can be 0
- * @param atsi performance information for this address
- * @param atsi_count number of performance information contained in @a atsi
- */
-void
-GAS_addresses_add (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name,
- const void *plugin_addr,
- size_t plugin_addr_len,
- uint32_t local_address_info,
- uint32_t session_id,
- const struct GNUNET_ATS_Information *atsi,
- uint32_t atsi_count)
-{
- struct ATS_Address *new_address;
- struct ATS_Address *existing_address;
- struct GNUNET_ATS_Information *atsi_delta;
- uint32_t atsi_delta_count;
- uint32_t addr_net;
- uint32_t previous_session;
- int c1;
-
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s' for peer `%s'\n",
- "ADDRESS ADD",
- GNUNET_i2s (peer));
-
- if (GNUNET_NO == handle->running)
- return;
-
- GNUNET_assert(NULL != handle->addresses);
-
- new_address = create_address (peer, plugin_name,
- plugin_addr, plugin_addr_len,
- local_address_info, session_id);
- atsi_delta = NULL;
- disassemble_ats_information (new_address, atsi, atsi_count, &atsi_delta,
- &atsi_delta_count);
- GNUNET_free_non_null (atsi_delta);
- addr_net = get_performance_info (new_address, GNUNET_ATS_NETWORK_TYPE);
- if (GNUNET_ATS_VALUE_UNDEFINED == addr_net)
- addr_net = GNUNET_ATS_NET_UNSPECIFIED;
-
- /* Get existing address or address with session == 0 */
- existing_address = find_equivalent_address (handle, peer, new_address);
- if (existing_address == NULL)
- {
- /* Add a new address */
- new_address->t_added = GNUNET_TIME_absolute_get();
- new_address->t_last_activity = GNUNET_TIME_absolute_get();
- GNUNET_assert(GNUNET_OK ==
- GNUNET_CONTAINER_multipeermap_put (handle->addresses,
- peer,
- new_address,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
-
- GNUNET_STATISTICS_set (handle->stat,
- "# addresses",
- GNUNET_CONTAINER_multipeermap_size (handle->addresses),
- GNUNET_NO);
-
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Adding new address %p for peer `%s', length %u, session id %u, %s\n",
- new_address,
- GNUNET_i2s (peer),
- plugin_addr_len,
- session_id,
- GNUNET_ATS_print_network_type (addr_net));
-
- /* Tell solver about new address */
- handle->env.sf.s_add (handle->solver, new_address, addr_net);
-
- handle->env.sf.s_bulk_start (handle->solver);
- GAS_normalization_normalize_property (handle->addresses,
- new_address,
- atsi,
- atsi_count);
- handle->env.sf.s_bulk_stop (handle->solver);
-
- /* Notify performance clients about new address */
- GAS_performance_notify_all_clients (&new_address->peer, new_address->plugin,
- new_address->addr, new_address->addr_len, new_address->active,
- new_address->atsi, new_address->atsi_count,
- GNUNET_BANDWIDTH_value_init (new_address->assigned_bw_out),
- GNUNET_BANDWIDTH_value_init (new_address->assigned_bw_in));
- return;
- }
-
- /* We have an existing address we can use, clean up new */
- GNUNET_free(new_address->plugin);
- GNUNET_free_non_null(new_address->atsi);
- GNUNET_free(new_address);
- new_address = NULL;
-
- if (0 != existing_address->session_id)
- {
- /* Should not happen */
- GNUNET_break(0);
- return;
- }
-
- addr_net = get_performance_info (existing_address, GNUNET_ATS_NETWORK_TYPE);
- if (GNUNET_ATS_VALUE_UNDEFINED == addr_net)
- addr_net = GNUNET_ATS_NET_UNSPECIFIED;
-
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "Found existing address for peer `%s' %p with new session %u in network %s\n",
- GNUNET_i2s (peer), existing_address, session_id,
- GNUNET_ATS_print_network_type (addr_net));
- /* We have an address without an session, update this address */
- existing_address->t_added = GNUNET_TIME_absolute_get();
- existing_address->t_last_activity = GNUNET_TIME_absolute_get();
- atsi_delta = NULL;
- atsi_delta_count = 0;
- if (GNUNET_YES
- == disassemble_ats_information (existing_address, atsi, atsi_count,
- &atsi_delta, &atsi_delta_count))
- {
- /* Notify performance clients about properties */
- GAS_performance_notify_all_clients (&existing_address->peer,
- existing_address->plugin, existing_address->addr,
- existing_address->addr_len, existing_address->active,
- existing_address->atsi, existing_address->atsi_count,
- GNUNET_BANDWIDTH_value_init (existing_address->assigned_bw_out),
- GNUNET_BANDWIDTH_value_init (existing_address->assigned_bw_in));
-
- for (c1 = 0; c1 < atsi_delta_count; c1++)
- {
- if ((GNUNET_ATS_NETWORK_TYPE == ntohl (atsi_delta[c1].type))
- && (addr_net != ntohl (atsi_delta[c1].value)))
- {
- /* Network type changed */
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
- "Address for peer `%s' %p changed from network %s to %s\n",
- GNUNET_i2s (peer), existing_address,
- GNUNET_ATS_print_network_type (addr_net),
- GNUNET_ATS_print_network_type (ntohl (atsi_delta[c1].value)));
- handle->env.sf.s_address_update_network (handle->solver, existing_address,
- ntohl (atsi_delta[c1].value),
- get_performance_info (existing_address, GNUNET_ATS_NETWORK_TYPE));
- addr_net = get_performance_info (existing_address,
- GNUNET_ATS_NETWORK_TYPE);
- }
- }
- /* Notify solver about update with atsi information and session */
- handle->env.sf.s_bulk_start (handle->solver);
- GAS_normalization_normalize_property (handle->addresses, existing_address,
- atsi, atsi_count);
- handle->env.sf.s_bulk_stop (handle->solver);
- }
- GNUNET_free_non_null(atsi_delta);
-
- /* Notify solver about new session */
- if (existing_address->session_id == session_id)
- return; /* possible, can both be 0 since address is revalidated */
-
- previous_session = existing_address->session_id;
- existing_address->session_id = session_id;
- handle->env.sf.s_address_update_session (handle->solver, existing_address,
- previous_session, session_id);
-
- GNUNET_log(GNUNET_ERROR_TYPE_INFO,
- "Updated existing address for peer `%s' %p length %u with new session %u in network %s\n",
- GNUNET_i2s (peer), existing_address, existing_address->addr_len,
- session_id, GNUNET_ATS_print_network_type (addr_net));
-}
-
-
-/**
- * Update an address with a session or performance information for a peer.
- *
- * If an address was added without a session it will be updated with the
- * session
- *
- * @param handle the address handle to use
- * @param peer peer
- * @param plugin_name transport plugin name
- * @param plugin_addr plugin address
- * @param plugin_addr_len length of the plugin address
- * @param local_address_info the local address for the address
- * @param session_id session id, can be 0
- * @param atsi performance information for this address
- * @param atsi_count number of performance information contained in @a atsi
- */
-void
-GAS_addresses_update (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name,
- const void *plugin_addr,
- size_t plugin_addr_len,
- uint32_t local_address_info,
- uint32_t session_id,
- const struct GNUNET_ATS_Information *atsi,
- uint32_t atsi_count)
-{
- struct ATS_Address *aa;
- struct GNUNET_ATS_Information *atsi_delta;
- uint32_t atsi_delta_count;
- uint32_t prev_session;
- int c1;
-
- if (GNUNET_NO == handle->running)
- return;
- GNUNET_assert (NULL != handle->addresses);
-
- /* Get existing address */
- aa = find_exact_address (handle, peer, plugin_name, plugin_addr,
- plugin_addr_len,
- local_address_info,
- session_id);
- if (aa == NULL)
- {
- GNUNET_break (0);
- return;
- }
- if (NULL == aa->solver_information)
- {
- GNUNET_break (0);
- return;
- }
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s' for peer `%s' address \n",
- "ADDRESS UPDATE",
- GNUNET_i2s (peer),
- aa);
-
- /* Update address */
- aa->t_last_activity = GNUNET_TIME_absolute_get();
- if (session_id != aa->session_id)
- {
- /* Session changed */
- prev_session = aa->session_id;
- aa->session_id = session_id;
- handle->env.sf.s_address_update_session (handle->solver,
- aa,
- prev_session,
- aa->session_id);
- }
-
- atsi_delta = NULL;
- atsi_delta_count = 0;
- if (GNUNET_YES ==
- disassemble_ats_information (aa, atsi,
- atsi_count,
- &atsi_delta,
- &atsi_delta_count))
- {
- /* ATS properties changed */
- for (c1 = 0; c1 < atsi_delta_count; c1++)
- {
- if (GNUNET_ATS_NETWORK_TYPE == ntohl (atsi_delta[c1].type))
- {
- /* Network type changed */
- handle->env.sf.s_address_update_network (handle->solver, aa,
- ntohl (atsi_delta[c1].value),
- get_performance_info (aa, GNUNET_ATS_NETWORK_TYPE));
- }
- }
-
- /* Notify performance clients about updated address */
- GAS_performance_notify_all_clients (&aa->peer, aa->plugin, aa->addr,
- aa->addr_len, aa->active, aa->atsi, aa->atsi_count,
- GNUNET_BANDWIDTH_value_init (aa->assigned_bw_out),
- GNUNET_BANDWIDTH_value_init (aa->assigned_bw_in));
-
- handle->env.sf.s_bulk_start (handle->solver);
- GAS_normalization_normalize_property (handle->addresses,
- aa,
- atsi,
- atsi_count);
- handle->env.sf.s_bulk_stop (handle->solver);
- }
- GNUNET_free_non_null (atsi_delta);
-}
-
-
-/**
- * Closure for #destroy_by_session_id().
- */
-struct DestroyContext
-{
- /**
- * FIXME.
- */
- struct ATS_Address *aa;
-
- /**
- * FIXME.
- */
- struct GAS_Addresses_Handle *handle;
-
- /**
- * #GNUNET_NO : full address
- * #GNUNET_YES : just session
- */
- int result;
-};
-
-
-/**
- * Delete an address.
- *
- * @param cls unused
- * @param key unused
- * @param value the `struct ATS_Address *`
- * @return #GNUNET_OK (continue to iterate)
- */
-static int
-destroy_by_session_id (void *cls,
- const struct GNUNET_PeerIdentity *key,
- void *value)
-{
- struct DestroyContext *dc = cls;
- struct GAS_Addresses_Handle *handle = dc->handle;
- const struct ATS_Address *des = dc->aa;
- struct ATS_Address *aa = value;
-
- GNUNET_assert (0 ==
- memcmp (&aa->peer,
- &des->peer,
- sizeof (struct GNUNET_PeerIdentity)));
- if ( (0 != strcmp (des->plugin, aa->plugin)) ||
- (aa->addr_len != des->addr_len) ||
- (0 != memcmp (des->addr, aa->addr, aa->addr_len)))
- return GNUNET_OK; /* wrong entry */
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Deleting full address for peer `%s' session %u %p\n",
- GNUNET_i2s (&aa->peer),
- aa->session_id,
- aa);
- /* Notify solver about deletion */
- GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multipeermap_remove (handle->addresses,
- &aa->peer,
- aa));
- handle->env.sf.s_del (handle->solver, aa, GNUNET_NO);
- GAS_performance_notify_all_clients (&aa->peer,
- aa->plugin,
- aa->addr,
- aa->addr_len,
- GNUNET_SYSERR,
- NULL, 0,
- zero_bw,
- zero_bw);
- free_address (aa);
- dc->result = GNUNET_NO;
- return GNUNET_OK; /* Continue iteration */
-}
-
-
-/**
- * Remove an address or just a session for a peer.
- *
- * @param handle the address handle to use
- * @param peer peer
- * @param plugin_name transport plugin name
- * @param plugin_addr plugin address
- * @param plugin_addr_len length of the plugin address in @a plugin_addr
- * @param local_address_info the local address for the address
- * @param session_id session id, can never be 0
- */
-void
-GAS_addresses_destroy (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name,
- const void *plugin_addr,
- size_t plugin_addr_len,
- uint32_t local_address_info,
- uint32_t session_id)
-{
- struct ATS_Address *ea;
- struct DestroyContext dc;
-
- if (GNUNET_NO == handle->running)
- return;
-
- /* Get existing address */
- ea = find_exact_address (handle,
- peer,
- plugin_name,
- plugin_addr,
- plugin_addr_len,
- local_address_info,
- session_id);
- if (NULL == ea)
- {
- GNUNET_break (0);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Tried to destroy unknown address for peer `%s' `%s' session id %u\n",
- GNUNET_i2s (peer),
- plugin_name,
- session_id);
- return;
- }
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s' for peer `%s' address %p session %u\n",
- "ADDRESS DESTROYED",
- GNUNET_i2s (peer),
- ea,
- session_id);
- GNUNET_break (0 < strlen (plugin_name));
- dc.handle = handle;
- dc.aa = create_address (peer,
- plugin_name,
- plugin_addr,
- plugin_addr_len,
- local_address_info,
- session_id);
- GNUNET_CONTAINER_multipeermap_get_multiple (handle->addresses,
- peer,
- &destroy_by_session_id, &dc);
- GNUNET_STATISTICS_set (handle->stat,