/*
- This file is part of GNUnet.
- (C) 2011 Christian Grothoff (and other contributing authors)
+ This file is part of GNUnet.
+ Copyright (C) 2011-2015 Christian Grothoff (and other contributing authors)
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-
-/**
- * @file ats/gnunet-service-ats_addresses.c
- * @brief ats service address management
- * @author Matthias Wachs
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "gnunet_ats_service.h"
-#include "gnunet-service-ats.h"
-#include "gnunet-service-ats_addresses.h"
-#include "gnunet-service-ats_normalization.h"
-#include "gnunet-service-ats_performance.h"
-#include "gnunet-service-ats_scheduling.h"
-#include "gnunet-service-ats_reservations.h"
-#if HAVE_LIBGLPK
-#include "gnunet-service-ats-solver_mlp.h"
-#endif
-#include "gnunet-service-ats-solver_proportional.h"
-#include "gnunet-service-ats-solver_ril.h"
-
-/**
- * NOTE: Do not change this documentation. This documentation is based on
- * gnunet.org:/vcs/fsnsg/ats-paper.git/tech-doku/ats-tech-guide.tex
- * use build_txt.sh to generate plaintext output
- *
- * 1 ATS addresses : ATS address management
- *
- * This ATS addresses ("addresses") component manages the addresses known to
- * ATS service and suggests addresses to transport service when it is
- * interested in address suggestion for a peer. ATS addresses also
- * instantiates the bandwidth assignment mechanism (solver), notifies it
- * about changes to addresses and forwards changes to bandwidth assignments
- * to transport, depending if transport is interested in this change.
- *
- * 1.1 Input data
- *
- * 1.1.1 Addresses
- *
- * Addresses are added by specifying peer ID, plugin, address, address length
- * and session, if available. ATS information can be specified if available.
- *
- * 1.1.2 Networks
- *
- * ATS specifies a fix set of networks an address can belong to. For each
- * network an inbound and outbound quota will be specified. The available
- * networks and addtional helper varaibles are defined in
- * gnunet_ats_service.h. At the moment 5 networks are defined:
- * * GNUNET_ATS_NET_UNSPECIFIED
- * * GNUNET_ATS_NET_LOOPBACK
- * * GNUNET_ATS_NET_LAN
- * * GNUNET_ATS_NET_WAN
- * * GNUNET_ATS_NET_WLAN
- *
- * The total number of networks defined is stored in
- * GNUNET_ATS_NetworkTypeCount GNUNET_ATS_NetworkType can be used array
- * initializer for an int array, while GNUNET_ATS_NetworkType is an
- * initializer for a char array containing a string description of all
- * networks
- *
- * 1.1.3 Quotas
- *
- * An inbound and outbound quota for each of the networks mentioned in 1.1.2
- * is loaded from ats configuration during initialization. This quota defines
- * to total amount of inbound and outbound traffic allowed for a specific
- * network. The configuration values used are in section ats:
- * * "NETWORK"_QUOTA_IN = <value>
- * * "NETWORK"_QUOTA_IN = <value>
- *
- * You can specify quotas by setting the <value> to a:
- * * unrestricted: unlimited
- * * number of bytes: e.g. 10240
- * * fancy value: e.g. 64 Kib
- *
- * unlimited is defined as GNUNET_ATS_MaxBandwidthString and equivalent to
- * the value GNUNET_ATS_MaxBandwidth Important predefined values for quotas
- * are:
- * * GNUNET_ATS_DefaultBandwidth: 65536
- * * GNUNET_ATS_MaxBandwidth: UINT32_MAX
- * * GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT: 1024
- *
- * Details of loading quotas and default values will be described on
- *
- * 1.1.4 Preference values
- *
- * 1.2 Data structures used
- *
- * Addresse uses struct ATS_Address for each address. The structs are stored
- * in a linked list and provides a pointer void *solver_information for the
- * solver to store address specific information. It provides the int values
- * active which is set to GNUNET_YES if the address is select for transport
- * use and used, representing that transport service is actively using this
- * address. Address information are stored in peer, addr, addr_len, plugin.
- *
- * 1.3 Initialization
- *
- * During initialization a hashmap to store addresses is created. The quotas
- * for all networks defined for ATS are loaded from configuration. For each
- * network first the logic will check if the string
- * GNUNET_ATS_MaxBandwidthString is configured, if not it will try to convert
- * the configured value as a fancy size and if this fails it will try to use
- * it as a value_number. If no configuration value is found it will assign
- * GNUNET_ATS_DefaultBandwidth. The most important step is to load the
- * configured solver using configuration "[ats]:MODE". Current solvers are
- * MODE_PROPORTIONAL, MODE_MLP. Interaction is done using a solver API
- *
- * 1.4 Solver API
- *
- * Solver functions:
- * * s_init: init the solver with required information
- * * s_add: add a new address
- * * s_update: update ATS values or session for an address
- * * s_get: get prefered address for a peer
- * * s_del: delete an address
- * * s_pref: change preference value for a peer
- * * s_done: shutdown solver
- *
- * Callbacks: addresses provides a bandwidth_changed_cb callback to the
- * solver which is called when bandwidth assigned to peer has changed
- *
- * 1.5 Shutdown
- *
- * During shutdown all addresses are freed and the solver told to shutdown
- *
- * 1.6 Addresses and sessions
- *
- * Addresses consist of the address itself and a numerical session. When a
- * new address without a session is added it has no session, so it gets
- * session 0 assigned. When an address with a session is added and an address
- * object with session 0 is found, this object is updated with the session
- * otherwise a new address object with this session assigned is created.
- *
- * 1.6.1 Terminology
- *
- * Addresses a1,a2 with session s1, s2 are "exact" if:
- * (a1 == a2)&&(s1 == s2)
- * Addresses a1,a2 with session s1, s2 are "equivalent" if:
- * (a1 == a2)&&((s1 == s2)||(s1 == 0)||(s2 == 0)
- *
- * 1.7 Address management
- *
- * Transport service notifies ATS about changes to the addresses known to
- * him.
- *
- * 1.7.1 Adding an address
- *
- * When transport learns a new address it tells ATS and ATS is telling
- * addresses about it using GAS_address_add. If not known to addresses it
- * creates a new address object and calls solver's s_add. ATS information are
- * deserialized and solver is notified about the session and ATS information
- * using s_update.
- *
- * 1.7.2 Updating an address
- *
- * Addresses does an lookup up for the existing address with the given
- * session. If disassembles included ATS information and notifies the solver
- * using s_update about the update.
- *
- * 1.7.3 Deleting an address
- *
- * Addresses does an lookup for the exact address and session and if removes
- * this address. If session != 0 the session is set to 0 and the address is
- * kept. If session == 0, the addresses is removed.
- *
- * 1.7.4 Requesting an address suggestion
- *
- * The address client issues a request address message to be notified about
- * address suggestions for a specific peer. Addresses asks the solver with
- * s_get. If no address is available, it will not send a response, otherwise
- * it will respond with the choosen address.
- *
- * 1.7.5 Address suggestions
- *
- * Addresses will notify the client automatically on any bandwidth_changed_cb
- * by the solver if a address suggestion request is pending. If no address is
- * available it will not respond at all If the client is not interested
- * anymore, it has to cancel the address suggestion request.
- *
- * 1.7.6 Suggestions blocks and reset
- *
- * After suggesting an address it is blocked for ATS_BLOCKING_DELTA sec. to
- * prevent the client from being thrashed. If the client requires immediately
- * it can reset this block using GAS_addresses_handle_backoff_reset.
- *
- * 1.7.7 Marking address in use
- *
- * The client can notify addresses that it successfully uses an address and
- * wants this address to be kept by calling GSA_address_in_use. Adresses will
- * mark the address as used an notify the solver about the use.
- *
- * 1.7.8 Address lifecycle
- *
- * * (add address)
- * * (updated address) || (address in use)
- * * (delete address)
- *
- * 1.8 Bandwidth assignment
- *
- * The addresses are used to perform resource allocation operations. ATS
- * addresses takes care of instantiating the solver configured and notifies
- * the respective solver about address changes and receives changes to the
- * bandwidth assignment from the solver. The current bandwidth assignment is
- * sent to transport. The specific solvers will be described in the specific
- * section.
- *
- * 1.9 Changing peer preferences
- *
- * The bandwidth assigned to a peer can be influenced by setting a preference
- * for a peer. The prefernce will be given to to the solver with s_pref which
- * has to take care of the preference value
-
- */
-
-
-/**
- * Available ressource assignment modes
- */
-enum ATS_Mode
-{
- /*
- * proportional mode:
- *
- * Assign each peer an equal amount of bandwidth (bw)
- *
- * bw_per_peer = bw_total / #active addresses
- */
- MODE_PROPORTIONAL,
-
- /*
- * MLP mode:
- *
- * Solve ressource assignment as an optimization problem
- * Uses an mixed integer programming solver
- */
- MODE_MLP,
-
- /*
- * Reinforcement Learning mode:
- *
- * Solve resource assignment using a learning agent
- */
- MODE_RIL
-};
-
-
-/**
- * Pending Address suggestion requests
- */
-struct GAS_Addresses_Suggestion_Requests
-{
- /**
- * Next in DLL
- */
- struct GAS_Addresses_Suggestion_Requests *next;
-
- /**
- * Previous in DLL
- */
- struct GAS_Addresses_Suggestion_Requests *prev;
-
- /**
- * Peer ID
- */
- struct GNUNET_PeerIdentity id;
-};
-
-
-/**
- * Handle for ATS address component
- */
-struct GAS_Addresses_Handle
-{
- /**
- *
- */
- struct GNUNET_STATISTICS_Handle *stat;
-
- /**
- * A multihashmap to store all addresses
- */
- struct GNUNET_CONTAINER_MultiHashMap *addresses;
-
- /**
- * Configure WAN quota in
- */
- unsigned long long wan_quota_in;
-
- /**
- * Configure WAN quota out
- */
- unsigned long long wan_quota_out;
-
- /**
- * Is ATS addresses running
- */
- int running;
-
- /**
- * Configured ATS solver
- */
- int ats_mode;
-
- /**
- * Solver handle
- */
- void *solver;
-
- /**
- * Address suggestion requests DLL head
- */
- struct GAS_Addresses_Suggestion_Requests *r_head;
-
- /**
- * Address suggestion requests DLL tail
- */
- struct GAS_Addresses_Suggestion_Requests *r_tail;
-
- /* Solver functions */
-
- /**
- * Initialize solver
- */
- GAS_solver_init s_init;
-
- /**
- * Add an address to the solver
- */
- GAS_solver_address_add s_add;
-
-
- GAS_solver_address_property_changed s_address_update_property;
-
- GAS_solver_address_session_changed s_address_update_session;
-
- GAS_solver_address_inuse_changed s_address_update_inuse;
-
- GAS_solver_address_network_changed s_address_update_network;
-
- /**
- * Get address from solver
- */
- GAS_solver_get_preferred_address s_get;
-
- /**
- * Get address from solver
- */
- GAS_solver_stop_get_preferred_address s_get_stop;
-
- /**
- * Delete address in solver
- */
- GAS_solver_address_delete s_del;
-
- /**
- * Change relative preference for quality in solver
- */
- GAS_solver_address_change_preference s_pref;
-
- /**
- * Give feedback about the current assignment
- */
- GAS_solver_address_feedback_preference s_feedback;
-
- /**
- * Start a bulk operation
- */
- GAS_solver_bulk_start s_bulk_start;
-
- /**
- * Bulk operation done
- */
- GAS_solver_bulk_stop s_bulk_stop;
-
- /**
- * Shutdown solver
- */
- GAS_solver_done s_done;
-};
-
-
-/**
- * Disassemble ATS information and update performance information in address
- *
- * Updates existing information and adds new information
- *
- * @param dest destination address
- * @param update source ATS information
- * @param update_count number of ATS information
- * @param delta_dest ats performance information which were updated
- * including previous value
- * @param delta_count number of ATS information in the delta
- * @return GNUNET_YES if address was address updated, GNUNET_NO otherwise
- */
-static unsigned int
-disassemble_ats_information (struct ATS_Address *dest,
- const struct GNUNET_ATS_Information *update,
- uint32_t update_count,
- struct GNUNET_ATS_Information **delta_dest,
- uint32_t *delta_count)
-{
-
- int c1;
- int c2;
- int found;
- int change;
-
- struct GNUNET_ATS_Information add_atsi[update_count];
- struct GNUNET_ATS_Information delta_atsi[update_count];
- struct GNUNET_ATS_Information *tmp_atsi;
- uint32_t add_atsi_count;
- uint32_t delta_atsi_count;
-
- change = GNUNET_NO;
- add_atsi_count = 0;
- delta_atsi_count = 0;
-
- if (0 == update_count)
- return GNUNET_NO;
-
- if (NULL == dest->atsi)
- {
- /* Create performance information */
- dest->atsi = GNUNET_malloc (update_count * sizeof (struct GNUNET_ATS_Information));
- dest->atsi_count = update_count;
- memcpy (dest->atsi, update, update_count * sizeof (struct GNUNET_ATS_Information));
- (*delta_dest) = GNUNET_malloc (update_count * sizeof (struct GNUNET_ATS_Information));
- for (c1 = 0; c1 < update_count; c1 ++)
- {
- (*delta_dest)[c1].type = update[c1].type;
- (*delta_dest)[c1].value = htonl(GNUNET_ATS_VALUE_UNDEFINED);
- }
- (*delta_count) = update_count;
- return GNUNET_YES;
- }
-
- for (c1 = 0; c1 < update_count; c1++)
- {
- /* Update existing performance information */
- found = GNUNET_NO;
- for (c2 = 0; c2 < dest->atsi_count; c2++)
- {
- if (update[c1].type == dest->atsi[c2].type)
- {
- if (update[c1].value != dest->atsi[c2].value)
- {
- /* Save previous value in delta */
- delta_atsi[delta_atsi_count] = dest->atsi[c2];
- delta_atsi_count ++;
- /* Set new value */
- dest->atsi[c2].value = update[c1].value;
- change = GNUNET_YES;
- }
- found = GNUNET_YES;
- break;
- }
- }
- if (GNUNET_NO == found)
- {
- add_atsi[add_atsi_count] = update[c1];
- add_atsi_count ++;
- delta_atsi[delta_atsi_count].type = update[c1].type;
- delta_atsi[delta_atsi_count].value = htonl (GNUNET_ATS_VALUE_UNDEFINED);
- delta_atsi_count ++;
- }
- }
-
- if (add_atsi_count > 0)
- {
- /* Extend ats performance information */
-
- tmp_atsi = GNUNET_malloc ((dest->atsi_count + add_atsi_count) *
- (sizeof (struct GNUNET_ATS_Information)));
- memcpy (tmp_atsi, dest->atsi, dest->atsi_count * sizeof (struct GNUNET_ATS_Information));
- memcpy (&tmp_atsi[dest->atsi_count], add_atsi, add_atsi_count * sizeof (struct GNUNET_ATS_Information));
- GNUNET_free (dest->atsi);
- dest->atsi = tmp_atsi;
- dest->atsi_count = dest->atsi_count + add_atsi_count;
- change = GNUNET_YES;
- }
-
- if (delta_atsi_count > 0)
- {
- /* Copy delta */
- (*delta_dest) = GNUNET_malloc (delta_atsi_count * sizeof (struct GNUNET_ATS_Information));
- memcpy ((*delta_dest), delta_atsi, delta_atsi_count * sizeof (struct GNUNET_ATS_Information));
- (*delta_count) = delta_atsi_count;
- }
-
- return change;
-}
-
-/**
- * Free the given address
- *
- * @param addr address to destroy
- */
-static void
-free_address (struct ATS_Address *addr)
-{
- 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 session_id session
- * @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 session_id)
-{
- struct ATS_Address *aa = NULL;
- int c1;
- 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->active = GNUNET_NO;
- aa->used = GNUNET_NO;
- aa->solver_information = NULL;
- aa->atsi = NULL;
- aa->atsi_count = 0;
- aa->assigned_bw_in = GNUNET_BANDWIDTH_value_init(0);
- aa->assigned_bw_out = GNUNET_BANDWIDTH_value_init(0);
-
- 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;
-}
-
-
-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_HashCode * 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_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
- &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 session_id session id, can 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 session_id)
-{
- struct ATS_Address *aa;
- struct ATS_Address *ea;
-
- aa = create_address (peer,
- plugin_name,
- plugin_addr, plugin_addr_len,
- 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;
-}
-
-
-/**
- * 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
- * @param session_id session id, can be 0
- * @param atsi performance information for this address
- * @param atsi_count number of performance information contained
- */
-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 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_INFO,
- "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,
- 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 */
- GNUNET_assert (GNUNET_OK ==
- GNUNET_CONTAINER_multihashmap_put (handle->addresses,
- &peer->hashPubKey, new_address,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
-
- 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->s_add (handle->solver, new_address, addr_net);
-
- handle->s_bulk_start (handle->solver);
- GAS_normalization_normalize_property (handle->addresses, new_address, atsi, atsi_count);
- handle->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->session_id,
- new_address->atsi, new_address->atsi_count,
- new_address->assigned_bw_out,
- 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 */
- 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->session_id,
- existing_address->atsi, existing_address->atsi_count,
- existing_address->assigned_bw_out,
- 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_INFO, "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->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->s_bulk_start (handle->solver);
- GAS_normalization_normalize_property (handle->addresses, existing_address, atsi, atsi_count);
- handle->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->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 session_id session id, can be 0
- * @param atsi performance information for this address
- * @param atsi_count number of performance information contained
- */
-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 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, session_id);
- if (aa == NULL)
- {
- /* GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Tried to update unknown address for peer `%s' `%s' session id %u\n", */
- /* GNUNET_i2s (peer), plugin_name, session_id); */
- /* GNUNET_break (0); */
- return;
- }
-
- if (NULL == aa->solver_information)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Tried to update 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 \n",
- "ADDRESS UPDATE",
- GNUNET_i2s (peer), aa);
-
- /* Update address */
- if (session_id != aa->session_id)
- {
- /* Session changed */
- prev_session = aa->session_id;
- aa->session_id = session_id;
- handle->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->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->session_id,
- aa->atsi, aa->atsi_count,
- aa->assigned_bw_out,
- aa->assigned_bw_in);
-
- handle->s_bulk_start (handle->solver);
- GAS_normalization_normalize_property (handle->addresses, aa, atsi, atsi_count);
- handle->s_bulk_stop (handle->solver);
- }
- GNUNET_free_non_null (atsi_delta);
-}
-
-
-struct DestroyContext
-{
- struct ATS_Address *aa;
-
- struct GAS_Addresses_Handle *handle;
-
- /**
- * GNUNET_NO : full address
- * GNUNET_YES : just session
- */
- int result;
-};
-
-
-/**
- * Delete an address
- *
- * If session != 0, just the session is deleted, the address itself still exists
- * If session == 0, remove full address
- * If session == 0 and addrlen == 0, destroy inbound 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_HashCode * 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 (des->session_id == 0)
- {
- /* Session == 0, remove full address */
- if ((0 == strcmp (des->plugin, aa->plugin)) &&
- (aa->addr_len == des->addr_len) &&
- (0 == memcmp (des->addr, aa->addr, aa->addr_len)))
- {
-
- 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_multihashmap_remove (handle->addresses,
- &aa->peer.hashPubKey, aa));
- handle->s_del (handle->solver, aa, GNUNET_NO);
- free_address (aa);
- dc->result = GNUNET_NO;
- return GNUNET_OK; /* Continue iteration */
- }
- }
- else
- {
- /* Session != 0, just remove session */
- if (aa->session_id != des->session_id)
- return GNUNET_OK; /* irrelevant */
-
- if ((aa->session_id != 0) &&
- (0 != strcmp (des->plugin, aa->plugin)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Different plugins during removal: `%s' vs `%s' \n",
- des->plugin, aa->plugin);
- GNUNET_break (0);
- return GNUNET_OK;
- }
-
- if (aa->addr_len == 0)
- {
- /* Inbound connection died, delete full address */
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Deleting inbound address for peer `%s': `%s' session %u\n",
- GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
-
- /* Notify solver about deletion */
- GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (handle->addresses,
- &aa->peer.hashPubKey, aa));
- handle->s_del (handle->solver, aa, GNUNET_NO);
- free_address (aa);
- dc->result = GNUNET_NO;
- return GNUNET_OK; /* Continue iteration */
- }
- else
- {
- /* Session died */
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Deleting session for peer `%s': `%s' %u\n",
- GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
- /* Notify solver to delete session */
- handle->s_del (handle->solver, aa, GNUNET_YES);
- aa->session_id = 0;
- aa->active = GNUNET_NO;
- return GNUNET_OK;
- }
- }
- return GNUNET_OK;
-}
-
-
-/**
- * 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
- * @param session_id session id, can 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 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, session_id);
- if (ea == NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "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 DESTROY",
- 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, session_id);
-
- GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
- &destroy_by_session_id, &dc);
- free_address (dc.aa);
-}
-
-
-/**
- * Notification about active use of an address.
- * in_use == GNUNET_YES:
- * This address is used to maintain an active connection with a peer.
- * in_use == GNUNET_NO:
- * This address is no longer used to maintain an active connection with a peer.
- *
- * Note: can only be called with in_use == GNUNET_NO if called with GNUNET_YES
- * before
- *
- * @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 session_id session id, can be 0
- * @param in_use GNUNET_YES if GNUNET_NO
- * @return GNUNET_SYSERR on failure (address unknown ...)
- */
-int
-GAS_addresses_in_use (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 session_id,
- int in_use)
-{
- struct ATS_Address *ea;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s' for peer `%s'\n",
- "ADDRESS IN USE",
- GNUNET_i2s (peer));
-
- if (GNUNET_NO == handle->running)
- return GNUNET_SYSERR;
-
- ea = find_exact_address (handle, peer, plugin_name,
- plugin_addr, plugin_addr_len, session_id);
- if (NULL == ea)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Trying to set unknown address `%s' `%s' `%u' to %s \n",
- GNUNET_i2s (peer),
- plugin_name, session_id,
- (GNUNET_NO == in_use) ? "NO" : "YES");
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- if (ea->used == in_use)
- {
- GNUNET_break (0);
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Address in use called multiple times for peer `%s': %s -> %s \n",
- GNUNET_i2s (peer),
- (GNUNET_NO == ea->used) ? "NO" : "YES",
- (GNUNET_NO == in_use) ? "NO" : "YES");
- return GNUNET_SYSERR;
- }
-
- /* Tell solver about update */
- ea->used = in_use;
- handle->s_address_update_inuse (handle->solver, ea, ea->used);
- return GNUNET_OK;
-}
-
-
-/**
- * Cancel address suggestions for a peer
- *
- * @param handle the address handle
- * @param peer the peer id
- */
-void
-GAS_addresses_request_address_cancel (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer)
-{
- struct GAS_Addresses_Suggestion_Requests *cur = handle->r_head;
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received request: `%s' for peer %s\n", "request_address_cancel", GNUNET_i2s (peer));
-
- while (NULL != cur)
- {
- if (0 == memcmp (peer, &cur->id, sizeof (cur->id)))
- break; /* found */
- cur = cur->next;
- }
-
- if (NULL == cur)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "No address requests pending for peer `%s', cannot remove!\n", GNUNET_i2s (peer));
- return;
- }
- handle->s_get_stop (handle->solver, peer);
- GAS_addresses_handle_backoff_reset (handle, peer);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Removed request pending for peer `%s\n", GNUNET_i2s (peer));
- GNUNET_CONTAINER_DLL_remove (handle->r_head, handle->r_tail, cur);
- GNUNET_free (cur);
-}
-
-/*
-static int
-addrinfo_it (void *cls, const struct GNUNET_HashCode *key, void *value)
-{
- static int count = 0;
- struct GNUNET_PeerIdentity *id = cls;
- struct ATS_Address *aa = value;
-
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "[%u] Peer `%s' %s length %u session %u active %s\n",
- count, GNUNET_i2s (id), aa->plugin, aa->addr_len, aa->session_id,
- (GNUNET_YES == aa->active) ? "active" : "inactive");
-
- count ++;
- return GNUNET_OK;
-}
-*/
-
-/**
- * Request address suggestions for a peer
- *
- * @param handle the address handle
- * @param peer the peer id
- */
-void
-GAS_addresses_request_address (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer)
-{
- struct GAS_Addresses_Suggestion_Requests *cur = handle->r_head;
- struct ATS_Address *aa;
-
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Received `%s' for peer `%s'\n",
- "REQUEST ADDRESS",
- GNUNET_i2s (peer));
-
- if (GNUNET_NO == handle->running)
- return;
- while (NULL != cur)
- {
- if (0 == memcmp (peer, &cur->id, sizeof (cur->id)))
- break; /* already suggesting */
- cur = cur->next;
- }
- if (NULL == cur)
- {
- cur = GNUNET_malloc (sizeof (struct GAS_Addresses_Suggestion_Requests));
- cur->id = (*peer);
- GNUNET_CONTAINER_DLL_insert (handle->r_head, handle->r_tail, cur);
- }
-
- /*
- * Debuging information about addresses
- *
- * GNUNET_CONTAINER_multihashmap_get_multiple(handle->addresses,
- * &peer->hashPubKey, &addrinfo_it, (void *) peer);
- */
-
- /* Get prefered address from solver */
- aa = (struct ATS_Address *) handle->s_get (handle->solver, peer);
- if (NULL == aa)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Cannot suggest address for peer `%s'\n", GNUNET_i2s (peer));
- return;
- }
-
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Suggesting address %p for peer `%s'\n", aa, GNUNET_i2s (peer));
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+ */
- GAS_scheduling_transmit_address_suggestion (peer,
- aa->plugin,
- aa->addr, aa->addr_len,
- aa->session_id,
- aa->atsi, aa->atsi_count,
- aa->assigned_bw_out,
- aa->assigned_bw_in);
+/**
+ * @file ats/gnunet-service-ats_addresses.c
+ * @brief ats service address management
+ * @author Matthias Wachs
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet-service-ats_addresses.h"
+#include "gnunet-service-ats_performance.h"
+#include "gnunet-service-ats_normalization.h"
+#include "gnunet-service-ats_plugins.h"
- aa->block_interval = GNUNET_TIME_relative_add (aa->block_interval, ATS_BLOCKING_DELTA);
- aa->blocked_until = GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get(), aa->block_interval);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Address %p ready for suggestion, block interval now %llu \n",
- aa, aa->block_interval);
-}
+/**
+ * A multihashmap to store all addresses
+ */
+struct GNUNET_CONTAINER_MultiPeerMap *GSA_addresses;
/**
- * Iterator to reset address blocking
- *
- * @param cls not used
- * @param key the peer
- * @param value the address to reset
- * @return GNUNET_OK to continue
+ * Update statistic on number of addresses.
*/
-static int
-reset_address_it (void *cls, const struct GNUNET_HashCode *key, void *value)
+static void
+update_addresses_stat ()
{
- struct ATS_Address *aa = value;
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Resetting interval for peer `%s' address %p from %llu to 0\n",
- GNUNET_i2s (&aa->peer), aa, aa->block_interval);
-
- aa->blocked_until = GNUNET_TIME_UNIT_ZERO_ABS;
- aa->block_interval = GNUNET_TIME_UNIT_ZERO;
- return GNUNET_OK;
+ GNUNET_STATISTICS_set (GSA_stats,
+ "# addresses",
+ GNUNET_CONTAINER_multipeermap_size (GSA_addresses),
+ GNUNET_NO);
}
/**
- * Reset suggestion backoff for a peer
- *
- * Suggesting addresses is blocked for ATS_BLOCKING_DELTA. Blocking can be
- * reset using this function
+ * Free the given address
*
- * @param handle the address handle
- * @param peer the peer id
+ * @param addr address to destroy
*/
-void
-GAS_addresses_handle_backoff_reset (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer)
+static void
+free_address (struct ATS_Address *addr)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s' for peer `%s'\n",
- "RESET BACKOFF",
- GNUNET_i2s (peer));
-
- GNUNET_break (GNUNET_SYSERR != GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses,
- &peer->hashPubKey,
- &reset_address_it,
- NULL));
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_CONTAINER_multipeermap_remove (GSA_addresses,
+ &addr->peer,
+ addr));
+ update_addresses_stat ();
+ GAS_plugin_delete_address (addr);
+ GAS_performance_notify_all_clients (&addr->peer,
+ addr->plugin,
+ addr->addr,
+ addr->addr_len,
+ GNUNET_NO,
+ NULL,
+ addr->local_address_info,
+ GNUNET_BANDWIDTH_ZERO,
+ GNUNET_BANDWIDTH_ZERO);
+ GNUNET_free (addr->plugin);
+ GNUNET_free (addr);
}
/**
- * The preference changed for a peer
+ * Initialize @a norm. Sets all historic values to undefined.
*
- * @param cls the address handle
- * @param peer the peer
- * @param kind the ATS kind
- * @param pref_rel the new relative preference value
+ * @param norm normalization data to initialize
*/
static void
-normalized_preference_changed_cb (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- enum GNUNET_ATS_PreferenceKind kind,
- double pref_rel)
+init_norm (struct GAS_NormalizationInfo *norm)
{
- GNUNET_assert (NULL != cls);
- struct GAS_Addresses_Handle *handle = cls;
- /* Tell solver about update */
- handle->s_pref (handle->solver, peer, kind, pref_rel);
+ unsigned int c;
+
+ for (c = 0; c < GAS_normalization_queue_length; c++)
+ norm->atsi_abs[c] = UINT64_MAX;
}
/**
- * The relative value for a property changed
+ * Create a ATS_address with the given information
*
- * @param cls the address handle
- * @param address the peer
- * @param type the ATS type
- * @param prop_rel the new relative preference value
+ * @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 void
-normalized_property_changed_cb (void *cls,
- struct ATS_Address *address,
- uint32_t type,
- double prop_rel)
+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 GAS_Addresses_Handle *ah = (struct GAS_Addresses_Handle *) cls;
- GNUNET_assert (NULL != ah);
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Normalized property %s for peer `%s' changed to %.3f \n",
- GNUNET_ATS_print_property_type (type),
- GNUNET_i2s (&address->peer),
- prop_rel);
-
- ah->s_address_update_property (ah->solver,
- address,
- type,
- 0,
- prop_rel);
+ struct ATS_Address *aa;
+
+ 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;
+ init_norm (&aa->norm_delay);
+ init_norm (&aa->norm_distance);
+ init_norm (&aa->norm_utilization_in);
+ init_norm (&aa->norm_utilization_out);
+ return aa;
}
/**
- * 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
+ * Closure for #find_address_cb()
*/
-const double *
-get_preferences_cb (void *cls, const struct GNUNET_PeerIdentity *id)
+struct FindAddressContext
{
- return GAS_normalization_get_preferences (id);
-}
+ /**
+ * Session Id to look for.
+ */
+ uint32_t session_id;
+
+ /**
+ * Where to store matching address result.
+ */
+ struct ATS_Address *exact_address;
+
+};
+
/**
- * Function allowing the solver to obtain normalized property
- * values for an address from solver
+ * Find session matching given session ID.
*
- * @param cls unused
- * @param address the address
- * @return array of double values with |GNUNET_ATS_QualityPropertiesCount| elements
+ * @param cls a `struct FindAddressContext`
+ * @param key peer id
+ * @param value the address to compare with
+ * @return #GNUNET_YES to continue, #GNUNET_NO if address is found
*/
-const double *
-get_property_cb (void *cls, const struct ATS_Address *address)
+static int
+find_address_cb (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
- return GAS_normalization_get_properties ((struct ATS_Address *) address);
+ struct FindAddressContext *fac = cls;
+ struct ATS_Address *aa = value;
+
+ if (aa->session_id == fac->session_id)
+ {
+ fac->exact_address = aa;
+ return GNUNET_NO;
+ }
+ return GNUNET_YES;
}
+
/**
- * Change the preference for a peer
+ * Find the exact address
*
- * @param handle the address handle
- * @param client the client sending this request
- * @param peer the peer id
- * @param kind the preference kind to change
- * @param score_abs the new preference score
+ * @param peer peer
+ * @param session_id session id, can never be 0
+ * @return an ATS_address or NULL
*/
-void
-GAS_addresses_change_preference (struct GAS_Addresses_Handle *handle,
- void *client,
- const struct GNUNET_PeerIdentity *peer,
- enum GNUNET_ATS_PreferenceKind kind,
- float score_abs)
+static struct ATS_Address *
+find_exact_address (const struct GNUNET_PeerIdentity *peer,
+ uint32_t session_id)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s' for peer `%s' for client %p\n",
- "CHANGE PREFERENCE",
- GNUNET_i2s (peer), client);
-
- if (GNUNET_NO == handle->running)
- return;
-
- if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains (handle->addresses,
- &peer->hashPubKey))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Received `%s' for unknown peer `%s' from client %p\n",
- "CHANGE PREFERENCE",
- GNUNET_i2s (peer), client);
- return;
- }
+ struct FindAddressContext fac;
- handle->s_bulk_start (handle->solver);
- /* Tell normalization about change, normalization will call callback if preference changed */
- GAS_normalization_normalize_preference (client, peer, kind, score_abs);
- handle->s_bulk_stop (handle->solver);
+ fac.exact_address = NULL;
+ fac.session_id = session_id;
+ GNUNET_CONTAINER_multipeermap_get_multiple (GSA_addresses,
+ peer,
+ &find_address_cb, &fac);
+ return fac.exact_address;
}
/**
- * Change the preference for a peer
+ * Add a new address for a peer.
*
- * @param handle the address handle
- * @param application the client sending this request
- * @param peer the peer id
- * @param scope the time interval for this feedback: [now - scope .. now]
- * @param kind the preference kind to change
- * @param score_abs the new preference score
+ * @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 prop performance information for this address
*/
void
-GAS_addresses_preference_feedback (struct GAS_Addresses_Handle *handle,
- void *application,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_TIME_Relative scope,
- enum GNUNET_ATS_PreferenceKind kind,
- float score_abs)
+GAS_addresses_add (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_Properties *prop)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s' for peer `%s' for client %p\n",
- "PREFERENCE FEEDBACK",
- GNUNET_i2s (peer), application);
-
- if (GNUNET_NO == handle->running)
- return;
+ struct ATS_Address *new_address;
- if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains (handle->addresses,
- &peer->hashPubKey))
+ if (NULL != find_exact_address (peer,
+ session_id))
{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Received `%s' for unknown peer `%s' from client %p\n",
- "PREFERENCE FEEDBACK",
- GNUNET_i2s (peer), application);
- return;
+ GNUNET_break (0);
+ return;
}
-
- handle->s_feedback (handle->solver, application, peer, scope, kind, score_abs);
-}
-
-
-/**
- * Load quotas for networks from configuration
+ new_address = create_address (peer,
+ plugin_name,
+ plugin_addr,
+ plugin_addr_len,
+ local_address_info,
+ session_id);
+ /* Add a new address */
+ new_address->properties = *prop;
+ 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 (GSA_addresses,
+ peer,
+ new_address,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
+ update_addresses_stat ();
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "Adding new address for peer `%s' slot %u\n",
+ GNUNET_i2s (peer),
+ session_id);
+ /* Tell solver about new address */
+ GAS_plugin_solver_lock ();
+ GAS_plugin_new_address (new_address);
+ GAS_normalization_update_property (new_address); // FIXME: needed?
+ GAS_plugin_solver_unlock ();
+ /* 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->properties,
+ new_address->local_address_info,
+ GNUNET_BANDWIDTH_value_init (new_address->assigned_bw_out),
+ GNUNET_BANDWIDTH_value_init (new_address->assigned_bw_in));
+}
+
+
+/**
+ * Update an address with new performance information for a peer.
*
- * @param cfg configuration handle
- * @param out_dest where to write outbound quotas
- * @param in_dest where to write inbound quotas
- * @param dest_length length of inbound and outbound arrays
- * @return number of networks loaded
+ * @param peer peer
+ * @param session_id session id, never 0
+ * @param prop performance information for this address
*/
-static unsigned int
-load_quotas (const struct GNUNET_CONFIGURATION_Handle *cfg, unsigned long long *out_dest, unsigned long long *in_dest, int dest_length)
+void
+GAS_addresses_update (const struct GNUNET_PeerIdentity *peer,
+ uint32_t session_id,
+ const struct GNUNET_ATS_Properties *prop)
{
- char *network_str[GNUNET_ATS_NetworkTypeCount] = GNUNET_ATS_NetworkTypeString;
- char * entry_in = NULL;
- char * entry_out = NULL;
- char * quota_out_str;
- char * quota_in_str;
- int c;
- int res;
-
- for (c = 0; (c < GNUNET_ATS_NetworkTypeCount) && (c < dest_length); c++)
+ struct ATS_Address *aa;
+
+ /* Get existing address */
+ aa = find_exact_address (peer,
+ session_id);
+ if (NULL == aa)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ if (NULL == aa->solver_information)
{
- in_dest[c] = 0;
- out_dest[c] = 0;
- GNUNET_asprintf (&entry_out, "%s_QUOTA_OUT", network_str[c]);
- GNUNET_asprintf (&entry_in, "%s_QUOTA_IN", network_str[c]);
-
- /* quota out */
- if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "ats", entry_out, "a_out_str))
- {
- res = GNUNET_NO;
- if (0 == strcmp(quota_out_str, GNUNET_ATS_MaxBandwidthString))
- {
- out_dest[c] = GNUNET_ATS_MaxBandwidth;
- res = GNUNET_YES;
- }
- if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_STRINGS_fancy_size_to_bytes (quota_out_str, &out_dest[c])))
- res = GNUNET_YES;
- if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "ats", entry_out, &out_dest[c])))
- res = GNUNET_YES;
-
- if (GNUNET_NO == res)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Could not load quota for network `%s': `%s', assigning default bandwidth %llu\n"),
- network_str[c], quota_out_str, GNUNET_ATS_DefaultBandwidth);
- out_dest[c] = GNUNET_ATS_DefaultBandwidth;
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Outbound quota configure for network `%s' is %llu\n"),
- network_str[c], out_dest[c]);
- }
- GNUNET_free (quota_out_str);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _("No outbound quota configured for network `%s', assigning default bandwidth %llu\n"),
- network_str[c], GNUNET_ATS_DefaultBandwidth);
- out_dest[c] = GNUNET_ATS_DefaultBandwidth;
- }
-
- /* quota in */
- if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "ats", entry_in, "a_in_str))
- {
- res = GNUNET_NO;
- if (0 == strcmp(quota_in_str, GNUNET_ATS_MaxBandwidthString))
- {
- in_dest[c] = GNUNET_ATS_MaxBandwidth;
- res = GNUNET_YES;
- }
- if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_STRINGS_fancy_size_to_bytes (quota_in_str, &in_dest[c])))
- res = GNUNET_YES;
- if ((GNUNET_NO == res) && (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "ats", entry_in, &in_dest[c])))
- res = GNUNET_YES;
-
- if (GNUNET_NO == res)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Could not load quota for network `%s': `%s', assigning default bandwidth %llu\n"),
- network_str[c], quota_in_str, GNUNET_ATS_DefaultBandwidth);
- in_dest[c] = GNUNET_ATS_DefaultBandwidth;
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Inbound quota configured for network `%s' is %llu\n"),
- network_str[c], in_dest[c]);
- }
- GNUNET_free (quota_in_str);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _("No outbound quota configure for network `%s', assigning default bandwidth %llu\n"),
- network_str[c], GNUNET_ATS_DefaultBandwidth);
- out_dest[c] = GNUNET_ATS_DefaultBandwidth;
- }
- 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]);
- GNUNET_free (entry_out);
- GNUNET_free (entry_in);
+ GNUNET_break (0);
+ return;
}
- return GNUNET_ATS_NetworkTypeCount;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received ADDRESS_UPDATE for peer `%s' slot %u\n",
+ GNUNET_i2s (peer),
+ (unsigned int) session_id);
+
+ /* Update address */
+ aa->t_last_activity = GNUNET_TIME_absolute_get();
+ aa->properties = *prop;
+ /* Notify performance clients about updated address */
+ GAS_performance_notify_all_clients (&aa->peer,
+ aa->plugin,
+ aa->addr,
+ aa->addr_len,
+ aa->active,
+ prop,
+ aa->local_address_info,
+ GNUNET_BANDWIDTH_value_init (aa->assigned_bw_out),
+ GNUNET_BANDWIDTH_value_init (aa->assigned_bw_in));
+
+ GAS_normalization_update_property (aa);
}
/**
- * Callback for solver to notify about assignment changes
+ * Remove an address for a peer.
*
- * @param cls the GAS_Addresses_Handle
- * @param address the address with changes
+ * @param peer peer
+ * @param session_id session id, can never be 0
*/
-static void
-bandwidth_changed_cb (void *cls, struct ATS_Address *address)
+void
+GAS_addresses_destroy (const struct GNUNET_PeerIdentity *peer,
+ uint32_t session_id)
{
- struct GAS_Addresses_Handle *handle = cls;
- struct GAS_Addresses_Suggestion_Requests *cur;
-
- GNUNET_assert (handle != NULL);
- GNUNET_assert (address != NULL);
-
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Bandwidth assignment changed for peer %s \n", GNUNET_i2s(&address->peer));
-
- /* Notify performance clients about changes to address */
- GAS_performance_notify_all_clients (&address->peer,
- address->plugin,
- address->addr, address->addr_len,
- address->session_id,
- address->atsi, address->atsi_count,
- address->assigned_bw_out,
- address->assigned_bw_in);
- cur = handle->r_head;
- while (NULL != cur)
- {
- if (0 == memcmp (&address->peer, &cur->id, sizeof (cur->id)))
- break; /* we have an address request pending*/
- cur = cur->next;
- }
- if (NULL == cur)
+ struct ATS_Address *ea;
+
+ /* Get existing address */
+ ea = find_exact_address (peer,
+ session_id);
+ if (NULL == ea)
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Nobody is interested in peer `%s' :(\n",GNUNET_i2s (&address->peer));
- return;
+ GNUNET_break (0);
+ return;
}
-
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Sending bandwidth update for peer `%s'\n",GNUNET_i2s (&address->peer));
-
- /* *Notify scheduling clients about suggestion */
- GAS_scheduling_transmit_address_suggestion (&address->peer,
- address->plugin,
- address->addr, address->addr_len,
- address->session_id,
- address->atsi, address->atsi_count,
- address->assigned_bw_out,
- address->assigned_bw_in);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received ADDRESS_DESTROYED for peer `%s' session %u\n",
+ GNUNET_i2s (peer),
+ session_id);
+ free_address (ea);
}
* responsible for the resource allocation. It tells the solver about changes
* and receives updates when the solver changes the resource allocation.
*
- * @param cfg configuration to use
- * @param stats the statistics handle to use
- * @return an address handle
+ * @param server handle to our server
*/
-struct GAS_Addresses_Handle *
-GAS_addresses_init (const struct GNUNET_CONFIGURATION_Handle *cfg,
- const struct GNUNET_STATISTICS_Handle *stats)
+void
+GAS_addresses_init (struct GNUNET_SERVER_Handle *server)
{
- struct GAS_Addresses_Handle *ah;
- int quotas[GNUNET_ATS_NetworkTypeCount] = GNUNET_ATS_NetworkType;
- unsigned long long quotas_in[GNUNET_ATS_NetworkTypeCount];
- unsigned long long quotas_out[GNUNET_ATS_NetworkTypeCount];
- int quota_count;
- char *mode_str;
- int c;
-
- ah = GNUNET_malloc (sizeof (struct GAS_Addresses_Handle));
- ah->running = GNUNET_NO;
-
- ah->stat = (struct GNUNET_STATISTICS_Handle *) stats;
- /* Initialize the addresses database */
- ah->addresses = GNUNET_CONTAINER_multihashmap_create (128, GNUNET_NO);
- GNUNET_assert (NULL != ah->addresses);
-
- /* Figure out configured solution method */
- if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_string (cfg, "ats", "MODE", &mode_str))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "No resource assignment method configured, using proportional approach\n");
- ah->ats_mode = MODE_PROPORTIONAL;
- }
- else
- {
- for (c = 0; c < strlen (mode_str); c++)
- mode_str[c] = toupper (mode_str[c]);
- if (0 == strcmp (mode_str, "PROPORTIONAL"))
- {
- ah->ats_mode = MODE_PROPORTIONAL;
- }
- else if (0 == strcmp (mode_str, "MLP"))
- {
- ah->ats_mode = MODE_MLP;
-#if !HAVE_LIBGLPK
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Assignment method `%s' configured, but GLPK is not available, please install \n", mode_str);
- ah->ats_mode = MODE_PROPORTIONAL;
-#endif
- }
- else if (0 == strcmp (mode_str, "RIL"))
- {
- ah->ats_mode = MODE_RIL;
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid resource assignment method `%s' configured, using proportional approach\n", mode_str);
- ah->ats_mode = MODE_PROPORTIONAL;
- }
- GNUNET_free (mode_str);
- }
- /* Start configured solution method */
- switch (ah->ats_mode)
- {
- case MODE_MLP:
- /* Init the MLP solver with default values */
-#if HAVE_LIBGLPK
- ah->s_init = &GAS_mlp_init;
- ah->s_add = &GAS_mlp_address_add;
- ah->s_address_update_property = &GAS_mlp_address_property_changed;
- ah->s_address_update_session = &GAS_mlp_address_session_changed;
- ah->s_address_update_inuse = &GAS_mlp_address_inuse_changed;
- ah->s_address_update_network = &GAS_mlp_address_change_network;
- ah->s_get = &GAS_mlp_get_preferred_address;
- ah->s_get_stop = &GAS_mlp_stop_get_preferred_address;
- ah->s_pref = &GAS_mlp_address_change_preference;
- ah->s_feedback = &GAS_mlp_address_preference_feedback;
- ah->s_del = &GAS_mlp_address_delete;
- ah->s_bulk_start = &GAS_mlp_bulk_start;
- ah->s_bulk_stop = &GAS_mlp_bulk_stop;
- ah->s_done = &GAS_mlp_done;
-#else
- GNUNET_free (ah);
- return NULL;
-#endif
- break;
- case MODE_PROPORTIONAL:
- /* Init the proportional solver with default values */
- ah->s_init = &GAS_proportional_init;
- ah->s_add = &GAS_proportional_address_add;
- ah->s_address_update_property = &GAS_proportional_address_property_changed;
- ah->s_address_update_session = &GAS_proportional_address_session_changed;
- ah->s_address_update_inuse = &GAS_proportional_address_inuse_changed;
- ah->s_address_update_network = &GAS_proportional_address_change_network;
- ah->s_get = &GAS_proportional_get_preferred_address;
- ah->s_get_stop = &GAS_proportional_stop_get_preferred_address;
- ah->s_pref = &GAS_proportional_address_change_preference;
- ah->s_feedback = &GAS_proportional_address_preference_feedback;
- ah->s_del = &GAS_proportional_address_delete;
- ah->s_bulk_start = &GAS_proportional_bulk_start;
- ah->s_bulk_stop = &GAS_proportional_bulk_stop;
- ah->s_done = &GAS_proportional_done;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ATS started in %s mode\n", "PROPORTIONAL");
- break;
- case MODE_RIL:
- /* Init the ril solver with default values */
- ah->s_init = &GAS_ril_init;
- ah->s_add = &GAS_ril_address_add;
- ah->s_address_update_property = &GAS_ril_address_property_changed;
- ah->s_address_update_session = &GAS_ril_address_session_changed;
- ah->s_address_update_inuse = &GAS_ril_address_inuse_changed;
- ah->s_address_update_network = &GAS_ril_address_change_network;
- ah->s_get = &GAS_ril_get_preferred_address;
- ah->s_get_stop = &GAS_ril_stop_get_preferred_address;
- ah->s_pref = &GAS_ril_address_change_preference;
- ah->s_feedback = &GAS_ril_address_preference_feedback;
- ah->s_del = &GAS_ril_address_delete;
- ah->s_bulk_start = &GAS_ril_bulk_start;
- ah->s_bulk_stop = &GAS_ril_bulk_stop;
- ah->s_done = &GAS_ril_done;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ATS started in %s mode\n", "RIL");
- break;
- default:
- return NULL;
- break;
- }
-
- GNUNET_assert (NULL != ah->s_init);
- GNUNET_assert (NULL != ah->s_add);
- GNUNET_assert (NULL != ah->s_address_update_inuse);
- GNUNET_assert (NULL != ah->s_address_update_property);
- GNUNET_assert (NULL != ah->s_address_update_session);
- GNUNET_assert (NULL != ah->s_address_update_network);
- GNUNET_assert (NULL != ah->s_get);
- GNUNET_assert (NULL != ah->s_get_stop);
- GNUNET_assert (NULL != ah->s_pref);
- GNUNET_assert (NULL != ah->s_feedback);
- GNUNET_assert (NULL != ah->s_del);
- GNUNET_assert (NULL != ah->s_done);
- GNUNET_assert (NULL != ah->s_bulk_start);
- GNUNET_assert (NULL != ah->s_bulk_stop);
-
- GAS_normalization_start (&normalized_preference_changed_cb, ah,
- &normalized_property_changed_cb, ah);
- quota_count = load_quotas(cfg, quotas_in, quotas_out, GNUNET_ATS_NetworkTypeCount);
-
- ah->solver = ah->s_init (cfg, stats, ah->addresses,
- quotas, quotas_in, quotas_out, quota_count,
- &bandwidth_changed_cb, ah,
- &get_preferences_cb, NULL,
- &get_property_cb, NULL);
- if (NULL == ah->solver)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Failed to initialize solver!\n"));
- GNUNET_free (ah);
- return NULL;
- }
-
- /* up and running */
- ah->running = GNUNET_YES;
- return ah;
+ GSA_addresses = GNUNET_CONTAINER_multipeermap_create (128, GNUNET_NO);
+ update_addresses_stat ();
}
* @param cls NULL
* @param key peer identity (unused)
* @param value the 'struct ATS_Address' to free
- * @return GNUNET_OK (continue to iterate)
+ * @return #GNUNET_OK (continue to iterate)
*/
static int
-destroy_all_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
+destroy_all_address_it (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
- struct GAS_Addresses_Handle *handle = cls;
struct ATS_Address *aa = value;
- /* Remove */
- GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove (handle->addresses, key, value));
- /* Notify */
- handle->s_del (handle->solver, aa, GNUNET_NO);
- /* Destroy */
free_address (aa);
-
return GNUNET_OK;
}
/**
* Remove all addresses
- *
- * @param handle the address handle to use
*/
void
-GAS_addresses_destroy_all (struct GAS_Addresses_Handle *handle)
+GAS_addresses_destroy_all ()
{
- if (GNUNET_NO == handle->running)
- return;
-
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Destroying all addresses\n");
- handle->s_bulk_start (handle->solver);
- if (handle->addresses != NULL)
- GNUNET_CONTAINER_multihashmap_iterate (handle->addresses, &destroy_all_address_it, handle);
- handle->s_bulk_start (handle->solver);
+ if (0 ==
+ GNUNET_CONTAINER_multipeermap_size (GSA_addresses))
+ return;
+ GAS_plugin_solver_lock ();
+ GNUNET_CONTAINER_multipeermap_iterate (GSA_addresses,
+ &destroy_all_address_it,
+ NULL);
+ GAS_plugin_solver_unlock ();
}
/**
* Shutdown address subsystem.
- *
- * @param handle the address handle to shutdown
*/
void
-GAS_addresses_done (struct GAS_Addresses_Handle *handle)
+GAS_addresses_done ()
{
- struct GAS_Addresses_Suggestion_Requests *cur;
-
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Shutting down addresses\n");
- GNUNET_assert (NULL != handle);
- GAS_addresses_destroy_all (handle);
- handle->running = GNUNET_NO;
- GNUNET_CONTAINER_multihashmap_destroy (handle->addresses);
- handle->addresses = NULL;
- while (NULL != (cur = handle->r_head))
- {
- GNUNET_CONTAINER_DLL_remove (handle->r_head, handle->r_tail, cur);
- GNUNET_free (cur);
- }
- handle->s_done (handle->solver);
- GNUNET_free (handle);
- /* Stop configured solution method */
- GAS_normalization_stop ();
+ GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+ "Shutting down addresses\n");
+ GAS_addresses_destroy_all ();
+ GNUNET_CONTAINER_multipeermap_destroy (GSA_addresses);
+ GSA_addresses = NULL;
}
-struct PeerIteratorContext
+/**
+ * Closure for #peerinfo_it().
+ */
+struct PeerInfoIteratorContext
{
- GNUNET_ATS_Peer_Iterator it;
+ /**
+ * Function to call for each address.
+ */
+ GNUNET_ATS_PeerInfo_Iterator it;
+
+ /**
+ * Closure for @e it.
+ */
void *it_cls;
- struct GNUNET_CONTAINER_MultiHashMap *peers_returned;
};
/**
- * Iterator to iterate over all peers
+ * Iterator to iterate over a peer's addresses
*
- * @param cls a PeerIteratorContext
+ * @param cls a `struct PeerInfoIteratorContext`
* @param key the peer id
- * @param value the ATS_address
- * @return GNUNET_OK to continue
+ * @param value the `struct ATS_address`
+ * @return #GNUNET_OK to continue
*/
static int
-peer_it (void *cls,
- const struct GNUNET_HashCode * key,
- void *value)
+peerinfo_it (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
- struct PeerIteratorContext *ip_ctx = cls;
- struct GNUNET_PeerIdentity tmp;
-
- if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(ip_ctx->peers_returned, key))
- {
- GNUNET_CONTAINER_multihashmap_put(ip_ctx->peers_returned, key, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- tmp.hashPubKey = (*key);
- ip_ctx->it (ip_ctx->it_cls, &tmp);
- }
-
+ struct PeerInfoIteratorContext *pi_ctx = cls;
+ struct ATS_Address *addr = value;
+
+ pi_ctx->it (pi_ctx->it_cls,
+ &addr->peer,
+ addr->plugin,
+ addr->addr,
+ addr->addr_len,
+ addr->active,
+ &addr->properties,
+ addr->local_address_info,
+ GNUNET_BANDWIDTH_value_init (addr->assigned_bw_out),
+ GNUNET_BANDWIDTH_value_init (addr->assigned_bw_in));
return GNUNET_OK;
}
/**
* Return information all peers currently known to ATS
*
- * @param handle the address handle to use
- * @param p_it the iterator to call for every peer
- * @param p_it_cls the closure for the iterator
+ * @param peer the respective peer, NULL for 'all' peers
+ * @param pi_it the iterator to call for every peer
+ * @param pi_it_cls the closure for @a pi_it
*/
void
-GAS_addresses_iterate_peers (struct GAS_Addresses_Handle *handle,
- GNUNET_ATS_Peer_Iterator p_it,
- void *p_it_cls)
+GAS_addresses_get_peer_info (const struct GNUNET_PeerIdentity *peer,
+ GNUNET_ATS_PeerInfo_Iterator pi_it,
+ void *pi_it_cls)
{
- struct PeerIteratorContext ip_ctx;
- unsigned int size;
-
- if (NULL == p_it)
- return;
- GNUNET_assert (NULL != handle->addresses);
+ struct PeerInfoIteratorContext pi_ctx;
- size = GNUNET_CONTAINER_multihashmap_size(handle->addresses);
- if (0 != size)
+ if (NULL == pi_it)
{
- ip_ctx.it = p_it;
- ip_ctx.it_cls = p_it_cls;
- ip_ctx.peers_returned = GNUNET_CONTAINER_multihashmap_create (size, GNUNET_NO);
- GNUNET_CONTAINER_multihashmap_iterate (handle->addresses, &peer_it, &ip_ctx);
- GNUNET_CONTAINER_multihashmap_destroy (ip_ctx.peers_returned);
+ /* does not make sense without callback */
+ GNUNET_break (0);
+ return;
}
- p_it (p_it_cls, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Returning information for %s from a total of %u known addresses\n",
+ (NULL == peer)
+ ? "all peers"
+ : GNUNET_i2s (peer),
+ (unsigned int) GNUNET_CONTAINER_multipeermap_size (GSA_addresses));
+ pi_ctx.it = pi_it;
+ pi_ctx.it_cls = pi_it_cls;
+ if (NULL == peer)
+ GNUNET_CONTAINER_multipeermap_iterate (GSA_addresses,
+ &peerinfo_it,
+ &pi_ctx);
+ else
+ GNUNET_CONTAINER_multipeermap_get_multiple (GSA_addresses,
+ peer,
+ &peerinfo_it, &pi_ctx);
+ pi_it (pi_it_cls,
+ NULL, NULL, NULL, 0,
+ GNUNET_NO,
+ NULL,
+ GNUNET_HELLO_ADDRESS_INFO_NONE,
+ GNUNET_BANDWIDTH_ZERO,
+ GNUNET_BANDWIDTH_ZERO);
}
-struct PeerInfoIteratorContext
+/**
+ * Information we need for the callbacks to return a list of addresses
+ * back to the client.
+ */
+struct AddressIteration
{
- GNUNET_ATS_PeerInfo_Iterator it;
- void *it_cls;
+ /**
+ * Actual handle to the client.
+ */
+ struct GNUNET_SERVER_Client *client;
+
+ /**
+ * Are we sending all addresses, or only those that are active?
+ */
+ int all;
+
+ /**
+ * Which ID should be included in the response?
+ */
+ uint32_t id;
+
};
/**
- * Iterator to iterate over a peer's addresses
+ * Send a #GNUNET_MESSAGE_TYPE_ATS_ADDRESSLIST_RESPONSE with the
+ * given address details to the client identified in @a ai.
*
- * @param cls a PeerInfoIteratorContext
- * @param key the peer id
- * @param value the ATS_address
- * @return GNUNET_OK to continue
+ * @param ai our address information context (identifies the client)
+ * @param id the peer id this address is for
+ * @param plugin_name name of the plugin that supports this address
+ * @param plugin_addr address
+ * @param plugin_addr_len length of @a plugin_addr
+ * @param active #GNUNET_YES if this address is actively used
+ * @param prop performance information
+ * @param local_address_info flags for the address
+ * @param bandwidth_out current outbound bandwidth assigned to address
+ * @param bandwidth_in current inbound bandwidth assigned to address
*/
-static int
-peerinfo_it (void *cls,
- const struct GNUNET_HashCode * key,
- void *value)
-{
- struct PeerInfoIteratorContext *pi_ctx = cls;
- struct ATS_Address *addr = (struct ATS_Address *) value;
-
- if (NULL != pi_ctx->it)
+static void
+transmit_req_addr (struct AddressIteration *ai,
+ const struct GNUNET_PeerIdentity *id,
+ const char *plugin_name,
+ const void *plugin_addr,
+ size_t plugin_addr_len,
+ int active,
+ const struct GNUNET_ATS_Properties *prop,
+ enum GNUNET_HELLO_AddressInfo local_address_info,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
+
+{
+ struct PeerInformationMessage *msg;
+ char *addrp;
+ size_t plugin_name_length;
+ size_t msize;
+ struct GNUNET_SERVER_NotificationContext **uc;
+ struct GNUNET_SERVER_NotificationContext *nc;
+
+ if (NULL != plugin_name)
+ plugin_name_length = strlen (plugin_name) + 1;
+ else
+ plugin_name_length = 0;
+ msize = sizeof (struct PeerInformationMessage) +
+ plugin_addr_len + plugin_name_length;
+ char buf[msize] GNUNET_ALIGN;
+
+ GNUNET_assert (msize < GNUNET_SERVER_MAX_MESSAGE_SIZE);
+ msg = (struct PeerInformationMessage *) buf;
+ msg->header.size = htons (msize);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_ADDRESSLIST_RESPONSE);
+ msg->id = htonl (ai->id);
+ if (NULL != id)
+ msg->peer = *id;
+ else
+ memset (&msg->peer, '\0', sizeof (struct GNUNET_PeerIdentity));
+ msg->address_length = htons (plugin_addr_len);
+ msg->address_active = ntohl (active);
+ msg->plugin_name_length = htons (plugin_name_length);
+ msg->bandwidth_out = bandwidth_out;
+ msg->bandwidth_in = bandwidth_in;
+ if (NULL != prop)
+ GNUNET_ATS_properties_hton (&msg->properties,
+ prop);
+ else
+ memset (&msg->properties,
+ 0,
+ sizeof (struct GNUNET_ATS_Properties));
+ msg->address_local_info = htonl ((uint32_t) local_address_info);
+ addrp = (char *) &msg[1];
+ if (NULL != plugin_addr)
+ memcpy (addrp, plugin_addr, plugin_addr_len);
+ if (NULL != plugin_name)
+ strcpy (&addrp[plugin_addr_len], plugin_name);
+ uc = GNUNET_SERVER_client_get_user_context (ai->client,
+ struct GNUNET_SERVER_NotificationContext *);
+ if (NULL == uc)
{
- pi_ctx->it (pi_ctx->it_cls,
- &addr->peer,
- addr->plugin,
- addr->addr, addr->addr_len,
- addr->active,
- addr->atsi, addr->atsi_count,
- addr->assigned_bw_out,
- addr->assigned_bw_in);
+ GNUNET_break (0);
+ return;
}
- return GNUNET_YES;
+ nc = *uc;
+ GNUNET_SERVER_notification_context_unicast (nc,
+ ai->client,
+ &msg->header,
+ GNUNET_NO);
}
/**
- * Return information all peers currently known to ATS
+ * Iterator for #GAS_addresses_get_peer_info(), called with peer-specific
+ * information to be passed back to the client.
*
- * @param handle the address handle to use
- * @param peer the respective peer
- * @param pi_it the iterator to call for every peer
- * @param pi_it_cls the closure for the iterator
+ * @param cls closure with our `struct AddressIteration *`
+ * @param id the peer id
+ * @param plugin_name plugin name
+ * @param plugin_addr address
+ * @param plugin_addr_len length of @a plugin_addr
+ * @param active is address actively used
+ * @param prop performance information
+ * @param local_address_info additional local info for the address
+ * @param bandwidth_out current outbound bandwidth assigned to address
+ * @param bandwidth_in current inbound bandwidth assigned to address
*/
-void
-GAS_addresses_get_peer_info (struct GAS_Addresses_Handle *handle,
- const struct GNUNET_PeerIdentity *peer,
- GNUNET_ATS_PeerInfo_Iterator pi_it,
- void *pi_it_cls)
+static void
+req_addr_peerinfo_it (void *cls,
+ const struct GNUNET_PeerIdentity *id,
+ const char *plugin_name,
+ const void *plugin_addr,
+ size_t plugin_addr_len,
+ int active,
+ const struct GNUNET_ATS_Properties *prop,
+ enum GNUNET_HELLO_AddressInfo local_address_info,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
+ struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
{
- struct PeerInfoIteratorContext pi_ctx;
- struct GNUNET_BANDWIDTH_Value32NBO zero_bw;
- GNUNET_assert (NULL != peer);
- GNUNET_assert (NULL != handle->addresses);
- if (NULL == pi_it)
- return; /* does not make sense without callback */
+ struct AddressIteration *ai = cls;
- zero_bw = GNUNET_BANDWIDTH_value_init (0);
- pi_ctx.it = pi_it;
- pi_ctx.it_cls = pi_it_cls;
+ if ( (NULL == id) &&
+ (NULL == plugin_name) &&
+ (NULL == plugin_addr) )
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Address iteration done for one peer\n");
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Callback for %s peer `%s' plugin `%s' BW out %u, BW in %u\n",
+ (active == GNUNET_YES) ? "ACTIVE" : "INACTIVE",
+ GNUNET_i2s (id),
+ plugin_name,
+ (unsigned int) ntohl (bandwidth_out.value__),
+ (unsigned int) ntohl (bandwidth_in.value__));
+ /* Transmit result (either if address is active, or if
+ client wanted all addresses) */
+ if ( (GNUNET_YES != ai->all) &&
+ (GNUNET_YES != active))
+ return;
+ transmit_req_addr (ai,
+ id,
+ plugin_name,
+ plugin_addr, plugin_addr_len,
+ active,
+ prop,
+ local_address_info,
+ bandwidth_out,
+ bandwidth_in);
+}
- GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey, &peerinfo_it, &pi_ctx);
- if (NULL != pi_it)
- pi_it (pi_it_cls, NULL, NULL, NULL, 0, GNUNET_NO, NULL, 0, zero_bw, zero_bw);
+/**
+ * Handle 'address list request' messages from clients.
+ *
+ * @param cls unused, NULL
+ * @param client client that sent the request
+ * @param message the request message
+ */
+void
+GAS_handle_request_address_list (void *cls,
+ struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct AddressIteration ai;
+ const struct AddressListRequestMessage *alrm;
+ struct GNUNET_PeerIdentity allzeros;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received ADDRESSLIST_REQUEST message\n");
+ alrm = (const struct AddressListRequestMessage *) message;
+ ai.all = ntohl (alrm->all);
+ ai.id = ntohl (alrm->id);
+ ai.client = client;
+
+ memset (&allzeros,
+ '\0',
+ sizeof (struct GNUNET_PeerIdentity));
+ if (0 == memcmp (&alrm->peer,
+ &allzeros,
+ sizeof (struct GNUNET_PeerIdentity)))
+ {
+ /* Return addresses for all peers */
+ GAS_addresses_get_peer_info (NULL,
+ &req_addr_peerinfo_it,
+ &ai);
+ }
+ else
+ {
+ /* Return addresses for a specific peer */
+ GAS_addresses_get_peer_info (&alrm->peer,
+ &req_addr_peerinfo_it,
+ &ai);
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Finished handling `%s' message\n",
+ "ADDRESSLIST_REQUEST");
+ transmit_req_addr (&ai,
+ NULL, NULL, NULL,
+ 0, GNUNET_NO,
+ NULL,
+ GNUNET_HELLO_ADDRESS_INFO_NONE,
+ GNUNET_BANDWIDTH_ZERO,
+ GNUNET_BANDWIDTH_ZERO);
+ GNUNET_SERVER_receive_done (client,
+ GNUNET_OK);
}
+
/* end of gnunet-service-ats_addresses.c */
projects / oweals / gnunet.git / blobdiff