#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_addresses_mlp.h"
+#endif
+#include "gnunet-service-ats_addresses_simplistic.h"
-struct ATS_Address
-{
- struct GNUNET_PeerIdentity peer;
+#define ATS_BLOCKING_DELTA GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100)
- size_t addr_len;
- uint32_t session_id;
+/**
+ * Available ressource assignment modes
+ */
+enum ATS_Mode
+{
+ /*
+ * Simplistic mode:
+ *
+ * Assign each peer an equal amount of bandwidth (bw)
+ *
+ * bw_per_peer = bw_total / #active addresses
+ */
+ MODE_SIMPLISTIC,
- uint32_t ats_count;
+ /*
+ * MLP mode:
+ *
+ * Solve ressource assignment as an optimization problem
+ * Uses an mixed integer programming solver
+ */
+ MODE_MLP
+};
- const void *addr;
+/**
+ * Handle for ATS address component
+ */
+struct GAS_Addresses_Handle
+{
+ /**
+ * A multihashmap to store all addresses
+ */
+ struct GNUNET_CONTAINER_MultiHashMap *addresses;
- char *plugin;
+ /**
+ * Configure WAN quota in
+ */
+ unsigned long long wan_quota_in;
- struct GNUNET_ATS_Information *ats;
+ /**
+ * Configure WAN quota out
+ */
+ unsigned long long wan_quota_out;
- struct GNUNET_TIME_Relative atsp_latency;
+ /**
+ * Number of active addresses
+ */
+ unsigned int active_addr_count;
- struct GNUNET_BANDWIDTH_Value32NBO atsp_utilization_in;
+ /**
+ * Is ATS addresses running
+ */
+ int running;
- struct GNUNET_BANDWIDTH_Value32NBO atsp_utilization_out;
+ /**
+ * Configured ATS solver
+ */
+ int ats_mode;
- uint32_t atsp_distance;
+ /**
+ * Solver handle
+ */
+ void *solver;
- uint32_t atsp_cost_wan;
+ /* Solver functions */
- uint32_t atsp_cost_lan;
+ /**
+ * Initialize solver
+ */
+ GAS_solver_init s_init;
- uint32_t atsp_cost_wlan;
+ /**
+ * Update address in solver
+ */
+ GAS_solver_address_update s_update;
- struct GNUNET_BANDWIDTH_Value32NBO assigned_bw_in;
+ /**
+ * Get address from solver
+ */
+ GAS_solver_get_preferred_address s_get;
- struct GNUNET_BANDWIDTH_Value32NBO assigned_bw_out;
+ /**
+ * Delete address in solver
+ */
+ GAS_solver_address_delete s_del;
/**
- * Is this the active address for this peer?
+ * Change preference for quality in solver
*/
- int active;
+ GAS_solver_address_change_preference s_pref;
+ /**
+ * Shutdown solver
+ */
+ GAS_solver_done s_done;
};
-static struct GNUNET_CONTAINER_MultiHashMap *addresses;
+/**
+ * Temporary handle
+ */
+struct GAS_Addresses_Handle *handle;
-static unsigned long long total_quota_in;
-static unsigned long long total_quota_out;
+static unsigned int
+assemble_ats_information (struct ATS_Address *aa, struct GNUNET_ATS_Information **dest)
+{
+ unsigned int ats_count = GNUNET_ATS_PropertyCount - 1;
+ struct GNUNET_ATS_Information *ats = GNUNET_malloc (ats_count * sizeof (struct GNUNET_ATS_Information));
+ (*dest) = ats;
+
+ ats[0].type = ntohl(GNUNET_ATS_UTILIZATION_UP);
+ ats[0].value = aa->atsp_utilization_out.value__;
+ ats[1].type = ntohl(GNUNET_ATS_UTILIZATION_DOWN);
+ ats[1].value = aa->atsp_utilization_in.value__;
+ ats[2].type = ntohl(GNUNET_ATS_NETWORK_TYPE);
+ ats[2].value = ntohl(aa->atsp_network_type);
+ ats[3].type = ntohl(GNUNET_ATS_QUALITY_NET_DELAY);
+ ats[3].value = ntohl(aa->atsp_latency.rel_value);
+ ats[4].type = ntohl(GNUNET_ATS_QUALITY_NET_DISTANCE);
+ ats[4].value = ntohl(aa->atsp_distance);
+ ats[5].type = ntohl(GNUNET_ATS_COST_WAN);
+ ats[5].value = ntohl (aa->atsp_cost_wan);
+ ats[6].type = ntohl(GNUNET_ATS_COST_LAN);
+ ats[6].value = ntohl (aa->atsp_cost_lan);
+ ats[7].type = ntohl(GNUNET_ATS_COST_WLAN);
+ ats[7].value = ntohl (aa->atsp_cost_wlan);
+ return ats_count;
+}
+
+static void
+send_bw_notification (struct ATS_Address *aa)
+{
+ struct GNUNET_ATS_Information *ats;
+ uint32_t ats_count;
-static unsigned int active_addr_count;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "New bandwidth for peer %s is %u/%u\n",
+ GNUNET_i2s (&aa->peer), ntohl (aa->assigned_bw_in.value__),
+ ntohl (aa->assigned_bw_out.value__));
+ ats_count = assemble_ats_information (aa, &ats);
+ GAS_scheduling_transmit_address_suggestion (&aa->peer, aa->plugin, aa->addr,
+ aa->addr_len, aa->session_id,
+ ats, ats_count,
+ aa->assigned_bw_out,
+ aa->assigned_bw_in);
+ GAS_reservations_set_bandwidth (&aa->peer, aa->assigned_bw_in);
+ GAS_performance_notify_all_clients (&aa->peer, aa->plugin, aa->addr, aa->addr_len,
+ aa->active,
+ ats, ats_count, aa->assigned_bw_out,
+ aa->assigned_bw_in);
+ GNUNET_free (ats);
+}
/**
* Update a bandwidth assignment for a peer. This trivial method currently
* @return GNUNET_OK (continue to iterate)
*/
static int
-update_bw_it (void *cls, const GNUNET_HashCode * key, void *value)
+update_bw_simple_it (void *cls, const struct GNUNET_HashCode * key, void *value)
{
struct ATS_Address *aa = value;
if (GNUNET_YES != aa->active)
return GNUNET_OK;
- GNUNET_assert (active_addr_count > 0);
- aa->assigned_bw_in.value__ = htonl (total_quota_in / active_addr_count);
- aa->assigned_bw_out.value__ = htonl (total_quota_out / active_addr_count);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "New bandwidth for peer %s is %u/%u\n",
- GNUNET_i2s (&aa->peer), ntohl (aa->assigned_bw_in.value__),
- ntohl (aa->assigned_bw_out.value__));
- GAS_scheduling_transmit_address_suggestion (&aa->peer, aa->plugin, aa->addr,
- aa->addr_len, aa->session_id,
- aa->ats, aa->ats_count,
- aa->assigned_bw_out,
- aa->assigned_bw_in);
- GAS_reservations_set_bandwidth (&aa->peer, aa->assigned_bw_in);
- GAS_performance_notify_clients (&aa->peer, aa->plugin, aa->addr, aa->addr_len,
- aa->ats, aa->ats_count, aa->assigned_bw_out,
- aa->assigned_bw_in);
+ GNUNET_assert (handle->active_addr_count > 0);
+
+
+ /* Simple method */
+ aa->assigned_bw_in.value__ = htonl (handle->wan_quota_in / handle->active_addr_count);
+ aa->assigned_bw_out.value__ = htonl (handle->wan_quota_out / handle->active_addr_count);
+
+ send_bw_notification (aa);
+
return GNUNET_OK;
}
"Recalculating bandwidth for all active connections\n");
GNUNET_STATISTICS_update (GSA_stats, "# bandwidth recalculations performed",
1, GNUNET_NO);
- GNUNET_STATISTICS_set (GSA_stats, "# active addresses", active_addr_count,
+ GNUNET_STATISTICS_set (GSA_stats, "# active addresses", handle->active_addr_count,
GNUNET_NO);
- GNUNET_CONTAINER_multihashmap_iterate (addresses, &update_bw_it, NULL);
+
+ GNUNET_CONTAINER_multihashmap_iterate (handle->addresses, &update_bw_simple_it, NULL);
+}
+
+/**
+ * Free the given address
+ * @param addr address to destroy
+ */
+static void
+free_address (struct ATS_Address *addr)
+{
+ GNUNET_free_non_null (addr->ats);
+ GNUNET_free (addr->plugin);
+ 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;
+
+ 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;
+ return aa;
}
ret = GNUNET_NO;
GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (addresses,
+ GNUNET_CONTAINER_multihashmap_remove (handle->addresses,
&addr->peer.hashPubKey,
addr));
+
+#if HAVE_LIBGLPK
+ if (handle->ats_mode == MODE_MLP)
+ GAS_mlp_address_delete (handle->solver, handle->addresses, addr);
+#endif
+
if (GNUNET_YES == addr->active)
{
- active_addr_count--;
+ handle->active_addr_count--;
addr->active = GNUNET_NO;
ret = GNUNET_YES;
}
- GNUNET_free_non_null (addr->ats);
- GNUNET_free (addr->plugin);
- GNUNET_free (addr);
+ free_address (addr);
return ret;
}
struct CompareAddressContext
{
const struct ATS_Address *search;
- struct ATS_Address *result;
+
+ /* 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;
};
static int
-compare_address_it (void *cls, const GNUNET_HashCode * key, void *value)
+compare_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
{
struct CompareAddressContext *cac = cls;
struct ATS_Address *aa = value;
- if (((aa->addr_len != cac->search->addr_len) ||
- (0 != strcmp (aa->plugin, cac->search->plugin)) ||
- (0 != memcmp (aa->addr, cac->search->addr, aa->addr_len))) &&
- ((aa->session_id != cac->search->session_id) ||
- (cac->search->session_id == 0)))
- return GNUNET_YES;
- cac->result = aa;
- return GNUNET_NO;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Comparing peer %4s: address length %u session %u <-> address length %u session %u\n",
+ GNUNET_h2s (key),
+ aa->addr_len, aa->session_id,
+ cac->search->addr_len, cac->search->session_id);
+
+ /* 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 */
}
{
struct CompareAddressContext cac;
- cac.result = NULL;
+ cac.exact_address = NULL;
+ cac.base_address = NULL;
cac.search = addr;
- GNUNET_CONTAINER_multihashmap_get_multiple (addresses, &peer->hashPubKey,
+ GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
&compare_address_it, &cac);
- return cac.result;
+
+#if 0
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Found exact address: %s base address: %s\n",
+ (cac.exact_address != NULL) ? "YES" : "NO",
+ (cac.base_address != NULL) ? "YES" : "NO");
+#endif
+ if (cac.exact_address == NULL)
+ return cac.base_address;
+ return cac.exact_address;
+}
+
+
+static struct ATS_Address *
+lookup_address (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 ATS_Address *old;
+
+ aa = create_address (peer,
+ plugin_name,
+ plugin_addr, plugin_addr_len,
+ session_id);
+
+ aa->mlp_information = NULL;
+ aa->ats = GNUNET_malloc (atsi_count * sizeof (struct GNUNET_ATS_Information));
+ aa->ats_count = atsi_count;
+ memcpy (aa->ats, atsi, atsi_count * sizeof (struct GNUNET_ATS_Information));
+
+ /* Get existing address or address with session == 0 */
+ old = find_address (peer, aa);
+ free_address (aa);
+ if (old == NULL)
+ {
+ return NULL;
+ }
+ else if (old->session_id != session_id)
+ {
+ return NULL;
+ }
+ return old;
}
+#if 0
+static int
+compare_address_session_it (void *cls, const struct GNUNET_HashCode * key, void *value)
+{
+ struct CompareAddressContext *cac = cls;
+ struct ATS_Address *aa = value;
+
+ 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;
+ return GNUNET_NO;
+ }
+ }
+ return GNUNET_YES;
+}
+
+
+/**
+ * Find an existing equivalent address record.
+ * Compares by peer identity and network address AND by session ID
+ * (one of the two must match).
+ *
+ * @param peer peer to lookup addresses for
+ * @param addr existing address record
+ * @return existing address record, NULL for none
+ */
+static struct ATS_Address *
+find_exact_address (const struct GNUNET_PeerIdentity *peer,
+ const struct ATS_Address *addr)
+{
+ struct CompareAddressContext cac;
+
+ cac.exact_address = NULL;
+ cac.search = addr;
+ GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
+ &compare_address_session_it, &cac);
+ return cac.exact_address;
+}
+#endif
+
void
-GAS_addresses_update (const struct GNUNET_PeerIdentity *peer,
+GAS_addresses_add (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,
{
struct ATS_Address *aa;
struct ATS_Address *old;
- uint32_t i;
- aa = GNUNET_malloc (sizeof (struct ATS_Address) + plugin_addr_len);
+ if (GNUNET_NO == handle->running)
+ return;
+
+ GNUNET_assert (NULL != handle->addresses);
+
+ aa = create_address (peer,
+ plugin_name,
+ plugin_addr, plugin_addr_len,
+ session_id);
+
+ aa->mlp_information = NULL;
aa->ats = GNUNET_malloc (atsi_count * sizeof (struct GNUNET_ATS_Information));
- aa->peer = *peer;
- aa->addr_len = plugin_addr_len;
aa->ats_count = atsi_count;
memcpy (aa->ats, atsi, atsi_count * sizeof (struct GNUNET_ATS_Information));
- aa->addr = &aa[1];
- memcpy (&aa[1], plugin_addr, plugin_addr_len);
- aa->plugin = GNUNET_strdup (plugin_name);
- aa->session_id = session_id;
+
+ /* Get existing address or address with session == 0 */
old = find_address (peer, aa);
if (old == NULL)
{
+ /* We have a new address */
GNUNET_assert (GNUNET_OK ==
- GNUNET_CONTAINER_multihashmap_put (addresses,
+ GNUNET_CONTAINER_multihashmap_put (handle->addresses,
&peer->hashPubKey, aa,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Added new address for peer `%s' %X\n",
- GNUNET_i2s (peer), aa);
- old = aa;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Added new address for peer `%s' session id %u, %p\n",
+ GNUNET_i2s (peer), session_id, aa);
+ return;
}
- else
+
+ if (old->session_id == 0)
{
+ /* We have a base address with out an session, update this address */
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Updated existing address for peer `%s' %X \n",
- GNUNET_i2s (peer), old);
+ "Updated existing address for peer `%s' %p with new session %u\n",
+ GNUNET_i2s (peer), old, session_id);
GNUNET_free_non_null (old->ats);
old->session_id = session_id;
old->ats = NULL;
old->ats_count = aa->ats_count;
GNUNET_free (aa->plugin);
GNUNET_free (aa);
+ return;
+ }
+
+ /* This address and session is already existing */
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Added already existing address for peer `%s' `%s' %p with new session %u\n",
+ GNUNET_i2s (peer), plugin_name, session_id);
+ GNUNET_break (0);
+}
+
+
+void
+GAS_addresses_update (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 *old;
+ uint32_t i;
+
+ if (GNUNET_NO == handle->running)
+ return;
+
+ GNUNET_assert (NULL != handle->addresses);
+
+ /* Get existing address */
+ old = lookup_address (peer, plugin_name, plugin_addr, plugin_addr_len,
+ session_id, atsi, atsi_count);
+ if (old == 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;
}
+
for (i = 0; i < atsi_count; i++)
switch (ntohl (atsi[i].type))
{
case GNUNET_ATS_COST_WLAN:
old->atsp_cost_wlan = ntohl (atsi[i].value);
break;
+ case GNUNET_ATS_NETWORK_TYPE:
+ old->atsp_network_type = ntohl (atsi[i].value);
+ break;
+
default:
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Received unsupported ATS type %u\n", ntohl (atsi[i].type));
GNUNET_break (0);
break;
}
+
+ /* Tell solver about update */
+ handle->s_update (handle->solver, handle->addresses, old);
}
/**
- * Update a bandwidth assignment for a peer. This trivial method currently
- * simply assigns the same share to all active connections.
+ * 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
* @return GNUNET_OK (continue to iterate)
*/
static int
-destroy_by_session_id (void *cls, const GNUNET_HashCode * key, void *value)
+destroy_by_session_id (void *cls, const struct GNUNET_HashCode * key, void *value)
{
const struct ATS_Address *info = cls;
struct ATS_Address *aa = value;
- GNUNET_assert (0 == memcmp (&aa->peer,
- &info->peer,
- sizeof (struct GNUNET_PeerIdentity)));
- if ( (info->session_id == 0) &&
- (0 == strcmp (info->plugin,
- aa->plugin)) &&
- (aa->addr_len == info->addr_len) &&
- (0 == memcmp (info->addr,
- aa->addr,
- aa->addr_len)) )
+ GNUNET_assert (0 ==
+ memcmp (&aa->peer, &info->peer,
+ sizeof (struct GNUNET_PeerIdentity)));
+ /* session == 0, remove full address */
+ if ((info->session_id == 0) && (0 == strcmp (info->plugin, aa->plugin)) &&
+ (aa->addr_len == info->addr_len) &&
+ (0 == memcmp (info->addr, aa->addr, aa->addr_len)))
{
+
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Deleting address for peer `%s': `%s'\n",
- GNUNET_i2s (&aa->peer), aa->plugin);
+ "Deleting address for peer `%s': `%s' %u\n",
+ GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
+
if (GNUNET_YES == destroy_address (aa))
recalculate_assigned_bw ();
return GNUNET_OK;
}
+ /* session != 0, just remove session */
if (aa->session_id != info->session_id)
- return GNUNET_OK; /* irrelevant */
+ return GNUNET_OK; /* irrelevant */
if (aa->session_id != 0)
GNUNET_break (0 == strcmp (info->plugin, aa->plugin));
/* session died */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Deleting session for peer `%s': `%s' %u\n",
+ GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
aa->session_id = 0;
if (GNUNET_YES == aa->active)
{
aa->active = GNUNET_NO;
- active_addr_count--;
+ handle->active_addr_count--;
recalculate_assigned_bw ();
}
/* session == 0 and addrlen == 0 : destroy address */
if (aa->addr_len == 0)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Deleting session and address for peer `%s': `%s' %u\n",
+ GNUNET_i2s (&aa->peer), aa->plugin, aa->session_id);
(void) destroy_address (aa);
+ }
+ else
+ {
+ /* session was set to 0, update address */
+#if HAVE_LIBGLPK
+ if (handle->ats_mode == MODE_MLP)
+ GAS_mlp_address_update (handle->solver, handle->addresses, aa);
+#endif
+ }
return GNUNET_OK;
}
const char *plugin_name, const void *plugin_addr,
size_t plugin_addr_len, uint32_t session_id)
{
- struct ATS_Address aa;
+ struct ATS_Address *aa;
+ struct ATS_Address *old;
+
+ if (GNUNET_NO == handle->running)
+ return;
+
+ /* Get existing address */
+ old = lookup_address (peer, plugin_name, plugin_addr, plugin_addr_len,
+ session_id, NULL, 0);
+ if (old == 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_break (0 < strlen (plugin_name));
- aa.peer = *peer;
- aa.addr_len = plugin_addr_len;
- aa.addr = plugin_addr;
- aa.plugin = (char *) plugin_name;
- aa.session_id = session_id;
- GNUNET_CONTAINER_multihashmap_get_multiple (addresses,
- &peer->hashPubKey,
- &destroy_by_session_id,
- &aa);
+ 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, aa);
+
+ free_address (aa);
}
* @return GNUNET_OK (continue to iterate)
*/
static int
-find_address_it (void *cls, const GNUNET_HashCode * key, void *value)
+find_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
{
struct ATS_Address **ap = cls;
struct ATS_Address *aa = (struct ATS_Address *) value;
struct ATS_Address *ab = *ap;
+ struct GNUNET_TIME_Absolute now;
+
+ now = GNUNET_TIME_absolute_get();
+
+ if (aa->blocked_until.abs_value == GNUNET_TIME_absolute_max (now, aa->blocked_until).abs_value)
+ {
+ /* This address is blocked for suggestion */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Address %p blocked for suggestion for %llu ms \n",
+ aa,
+ GNUNET_TIME_absolute_get_difference(now, aa->blocked_until).rel_value);
+ return GNUNET_OK;
+ }
+
+ aa->block_interval = GNUNET_TIME_relative_add (aa->block_interval, ATS_BLOCKING_DELTA);
+ aa->blocked_until = GNUNET_TIME_absolute_add (now, aa->block_interval);
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Address %p ready for suggestion, block interval now %llu \n", aa, aa->block_interval);
+
+ /* FIXME this is a hack */
+
+
+ if (NULL != ab)
+ {
+ if ((0 == strcmp (ab->plugin, "tcp")) &&
+ (0 == strcmp (aa->plugin, "tcp")))
+ {
+ if ((0 != ab->addr_len) &&
+ (0 == aa->addr_len))
+ {
+ /* saved address was an outbound address, but we have an inbound address */
+ *ap = aa;
+ return GNUNET_OK;
+ }
+ if (0 == ab->addr_len)
+ {
+ /* saved address was an inbound address, so do not overwrite */
+ return GNUNET_OK;
+ }
+ }
+ }
+ /* FIXME end of hack */
if (NULL == ab)
{
}
-void
+int
GAS_addresses_in_use (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)
+ size_t plugin_addr_len, uint32_t session_id, int in_use)
{
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message for peer `%s': %i\n",
- "ADDRESS_IN_USE",
+#if DEBUG_ATS
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received `%s' message for peer `%s': %i\n", "ADDRESS_IN_USE",
GNUNET_i2s (peer), in_use);
+#endif
+
+ struct ATS_Address *old;
+
+ if (GNUNET_NO == handle->running)
+ return GNUNET_SYSERR;
+
+ old = lookup_address (peer, plugin_name, plugin_addr, plugin_addr_len, session_id, NULL, 0);
+ if (NULL == old)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Trying to set unknown address `%s', %s %u %s \n",
+ GNUNET_i2s (peer),
+ plugin_name, session_id,
+ (GNUNET_NO == in_use) ? "NO" : "YES");
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ if (old->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 == old->used) ? "NO" : "YES",
+ (GNUNET_NO == in_use) ? "NO" : "YES");
+ return GNUNET_SYSERR;
+ }
+ old->used = in_use;
+
+ /* Tell solver about update */
+ handle->s_update (handle->solver, handle->addresses, old);
+
+ return GNUNET_OK;
}
-void
-GAS_addresses_request_address (const struct GNUNET_PeerIdentity *peer)
+
+static void
+request_address_mlp (const struct GNUNET_PeerIdentity *peer)
{
struct ATS_Address *aa;
+ aa = NULL;
+
+#if HAVE_GLPK
+ /* Get preferred address from MODE_MLP */
+ struct ATS_PreferedAddress * paddr = NULL;
+ paddr = GAS_mlp_get_preferred_address (mlp, addresses, peer);
+ aa = paddr->address;
+ aa->assigned_bw_out = GNUNET_BANDWIDTH_value_init(paddr->bandwidth_out);
+ /* FIXME use bw in value */
+ paddr->bandwidth_in = paddr->bandwidth_out;
+ aa->assigned_bw_in = GNUNET_BANDWIDTH_value_init (paddr->bandwidth_in);
+ GNUNET_free (paddr);
+#endif
+
+ if (aa == NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
+ "Cannot suggest address for peer `%s'\n", GNUNET_i2s (peer));
+ return;
+ }
+ if (aa->active == GNUNET_NO)
+ {
+ aa->active = GNUNET_YES;
+ handle->active_addr_count++;
+ send_bw_notification (aa);
+ }
+ else
+ {
+ /* just to be sure... */
+ GAS_scheduling_transmit_address_suggestion (peer, aa->plugin, aa->addr,
+ aa->addr_len, aa->session_id,
+ aa->ats, aa->ats_count,
+ aa->assigned_bw_out,
+ aa->assigned_bw_in);
+ }
+}
+
+
+static void
+request_address_simple (const struct GNUNET_PeerIdentity *peer)
+{
+ struct ATS_Address *aa;
aa = NULL;
- GNUNET_CONTAINER_multihashmap_get_multiple (addresses, &peer->hashPubKey,
+
+ /* Get address with: stick to current address, lower distance, lower latency */
+ GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses, &peer->hashPubKey,
&find_address_it, &aa);
if (aa == NULL)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
"Cannot suggest address for peer `%s'\n", GNUNET_i2s (peer));
return;
}
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
+ "Suggesting address %p for peer `%s'\n", aa, GNUNET_i2s (peer));
+
if (aa->active == GNUNET_NO)
{
aa->active = GNUNET_YES;
- active_addr_count++;
- recalculate_assigned_bw ();
+ handle->active_addr_count++;
+ if (handle->ats_mode == MODE_SIMPLISTIC)
+ {
+ recalculate_assigned_bw ();
+ }
}
else
{
}
-// FIXME: this function should likely end up in the LP-subsystem and
-// not with 'addresses' in the future...
+void
+GAS_addresses_request_address (const struct GNUNET_PeerIdentity *peer)
+{
+ if (GNUNET_NO == handle->running)
+ return;
+
+ if (handle->ats_mode == MODE_SIMPLISTIC)
+ {
+ request_address_simple (peer);
+ }
+ if (handle->ats_mode == MODE_MLP)
+ {
+ request_address_mlp(peer);
+ }
+}
+
+
+static int
+reset_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
+{
+ 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;
+}
+
+
+void
+GAS_addresses_handle_backoff_reset (const struct GNUNET_PeerIdentity *peer)
+{
+ GNUNET_break (GNUNET_SYSERR != GNUNET_CONTAINER_multihashmap_get_multiple (handle->addresses,
+ &peer->hashPubKey,
+ &reset_address_it,
+ NULL));
+}
+
+
void
GAS_addresses_change_preference (const struct GNUNET_PeerIdentity *peer,
enum GNUNET_ATS_PreferenceKind kind,
float score)
{
- // do nothing for now...
+ if (GNUNET_NO == handle->running)
+ return;
+
+ /* Tell solver about update */
+ handle->s_pref (handle->solver, peer, kind, score);
}
+
/**
* Initialize address subsystem.
*
* @param cfg configuration to use
+ * @param stats the statistics handle to use
*/
-void
-GAS_addresses_init (const struct GNUNET_CONFIGURATION_Handle *cfg)
+struct GAS_Addresses_Handle *
+GAS_addresses_init (const struct GNUNET_CONFIGURATION_Handle *cfg,
+ const struct GNUNET_STATISTICS_Handle *stats)
{
- GNUNET_assert (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_size (cfg, "core",
- "TOTAL_QUOTA_IN",
- &total_quota_in));
- GNUNET_assert (GNUNET_OK ==
- GNUNET_CONFIGURATION_get_value_size (cfg, "core",
- "TOTAL_QUOTA_OUT",
- &total_quota_out));
- addresses = GNUNET_CONTAINER_multihashmap_create (128);
+ struct GAS_Addresses_Handle *ah;
+ char *quota_wan_in_str;
+ char *quota_wan_out_str;
+ char *mode_str;
+ int c;
+
+ ah = GNUNET_malloc (sizeof (struct GAS_Addresses_Handle));
+ handle = ah;
+ handle->running = GNUNET_NO;
+
+ /* Initialize the system with configuration values */
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "ats", "WAN_QUOTA_IN", "a_wan_in_str))
+ {
+ if (0 == strcmp(quota_wan_in_str, "unlimited") ||
+ (GNUNET_SYSERR == GNUNET_STRINGS_fancy_size_to_bytes (quota_wan_in_str, &ah->wan_quota_in)))
+ ah->wan_quota_in = (UINT32_MAX) /10;
+
+ GNUNET_free (quota_wan_in_str);
+ quota_wan_in_str = NULL;
+ }
+ else
+ ah->wan_quota_in = (UINT32_MAX) /10;
+
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(cfg, "ats", "WAN_QUOTA_OUT", "a_wan_out_str))
+ {
+ if (0 == strcmp(quota_wan_out_str, "unlimited") ||
+ (GNUNET_SYSERR == GNUNET_STRINGS_fancy_size_to_bytes (quota_wan_out_str, &ah->wan_quota_out)))
+ ah->wan_quota_out = (UINT32_MAX) /10;
+
+ GNUNET_free (quota_wan_out_str);
+ quota_wan_out_str = NULL;
+ }
+ else
+ ah->wan_quota_out = (UINT32_MAX) /10;
+
+ /* 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 ressource assignment method configured, using simplistic approch\n");
+ ah->ats_mode = MODE_SIMPLISTIC;
+ }
+ else
+ {
+ for (c = 0; c < strlen (mode_str); c++)
+ mode_str[c] = toupper (mode_str[c]);
+ if (0 == strcmp (mode_str, "SIMPLISTIC"))
+ {
+ ah->ats_mode = MODE_SIMPLISTIC;
+ }
+ 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 availabe, please install \n", mode_str);
+ ah->ats_mode = MODE_SIMPLISTIC;
+#endif
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid ressource assignment method `%s' configured, using simplistic approch\n", mode_str);
+ ah->ats_mode = MODE_SIMPLISTIC;
+ }
+ 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->ats_mode = MODE_MLP;
+ ah->s_init = &GAS_mlp_init;
+ ah->s_update = &GAS_mlp_address_update;
+ ah->s_get = &GAS_mlp_get_preferred_address;
+ ah->s_pref = &GAS_mlp_address_change_preference;
+ ah->s_del = &GAS_mlp_address_delete;
+ ah->s_done = &GAS_mlp_done;
+#else
+ GNUNET_free (ah);
+ return NULL;
+#endif
+ break;
+ case MODE_SIMPLISTIC:
+ /* Init the simplistic solver with default values */
+ ah->ats_mode = MODE_SIMPLISTIC;
+ ah->s_init = &GAS_simplistic_init;
+ ah->s_update = &GAS_simplistic_address_update;
+ ah->s_get = &GAS_simplistic_get_preferred_address;
+ ah->s_pref = &GAS_simplistic_address_change_preference;
+ ah->s_del = &GAS_simplistic_address_delete;
+ ah->s_done = &GAS_simplistic_done;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ATS started in %s mode\n", "SIMPLISTIC");
+ break;
+ default:
+ return NULL;
+ break;
+ }
+
+ GNUNET_assert (NULL != ah->s_init);
+ GNUNET_assert (NULL != ah->s_update);
+ GNUNET_assert (NULL != ah->s_get);
+ GNUNET_assert (NULL != ah->s_pref);
+ GNUNET_assert (NULL != ah->s_del);
+ GNUNET_assert (NULL != ah->s_done);
+
+ ah->solver = ah->s_init (cfg, stats);
+ if (NULL == ah->solver)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to initialize MLP solver!\n");
+ GNUNET_free (ah);
+ return NULL;
+ }
+
+ /* up and running */
+ ah->running = GNUNET_YES;
+ return ah;
}
* @return GNUNET_OK (continue to iterate)
*/
static int
-free_address_it (void *cls, const GNUNET_HashCode * key, void *value)
+free_address_it (void *cls, const struct GNUNET_HashCode * key, void *value)
{
struct ATS_Address *aa = value;
void
GAS_addresses_destroy_all ()
{
- if (addresses != NULL)
- GNUNET_CONTAINER_multihashmap_iterate (addresses, &free_address_it, NULL);
- GNUNET_assert (active_addr_count == 0);
+ if (GNUNET_NO == handle->running)
+ return;
+
+ if (handle->addresses != NULL)
+ GNUNET_CONTAINER_multihashmap_iterate (handle->addresses, &free_address_it, NULL);
+ GNUNET_assert (handle->active_addr_count == 0);
}
* Shutdown address subsystem.
*/
void
-GAS_addresses_done ()
+GAS_addresses_done (struct GAS_Addresses_Handle *handle)
{
+ GNUNET_assert (NULL != handle);
+
GAS_addresses_destroy_all ();
- GNUNET_CONTAINER_multihashmap_destroy (addresses);
- addresses = NULL;
+ handle->running = GNUNET_NO;
+ GNUNET_CONTAINER_multihashmap_destroy (handle->addresses);
+ handle->addresses = NULL;
+ GNUNET_free (handle);
+ /* Stop configured solution method */
+
+}
+
+struct PeerIteratorContext
+{
+ GNUNET_ATS_Peer_Iterator it;
+ void *it_cls;
+ struct GNUNET_CONTAINER_MultiHashMap *peers_returned;
+};
+
+static int
+peer_it (void *cls,
+ const struct GNUNET_HashCode * 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);
+ }
+
+ return GNUNET_OK;
+}
+
+/**
+ * Return all peers currently known to ATS
+ *
+ * @param p_it the iterator to call for every peer, callbach with id == NULL
+ * when done
+ * @param p_it_cls the closure for the iterator
+ */
+void
+GAS_addresses_iterate_peers (GNUNET_ATS_Peer_Iterator p_it, void *p_it_cls)
+{
+ struct PeerIteratorContext ip_ctx;
+ unsigned int size;
+
+ if (NULL == p_it)
+ return;
+ GNUNET_assert (NULL != handle->addresses);
+
+ size = GNUNET_CONTAINER_multihashmap_size(handle->addresses);
+ if (0 != size)
+ {
+ 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);
+ }
+ p_it (p_it_cls, NULL);
+}
+
+struct PeerInfoIteratorContext
+{
+ GNUNET_ATS_PeerInfo_Iterator it;
+ void *it_cls;
+};
+
+
+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;
+ struct GNUNET_ATS_Information *ats;
+ uint32_t ats_count;
+
+ if (NULL != pi_ctx->it)
+ {
+ ats_count = assemble_ats_information (addr, &ats);
+
+ pi_ctx->it (pi_ctx->it_cls,
+ &addr->peer,
+ addr->plugin,
+ addr->addr, addr->addr_len,
+ addr->active,
+ ats, ats_count,
+ addr->assigned_bw_out,
+ addr->assigned_bw_in);
+ GNUNET_free (ats);
+ }
+ return GNUNET_YES;
+}
+
+
+/**
+ * Return all peers currently known to ATS
+ *
+ * @param peer the respective peer
+ * @param pi_it the iterator to call for every peer
+ * @param pi_it_cls the closure for the iterator
+ */
+void
+GAS_addresses_get_peer_info (const struct GNUNET_PeerIdentity *peer, GNUNET_ATS_PeerInfo_Iterator pi_it, void *pi_it_cls)
+{
+ 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 */
+
+ zero_bw = GNUNET_BANDWIDTH_value_init (0);
+ pi_ctx.it = pi_it;
+ pi_ctx.it_cls = pi_it_cls;
+
+ 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);
+
}
projects / oweals / gnunet.git / blobdiff