/**
- * Load a set of hosts from a configuration file.
+ * Load a set of hosts from a configuration file. The hostfile format is
+ * specified at https://gnunet.org/content/hosts-file-format
*
* @param filename file with the host specification
* @param cfg the configuration to use as a template while starting a controller
* for all peer start events even if GNUNET_TESTBED_ET_PEER_START isn't
* set in the event_mask as this is the only way get access to the
* handle of each peer
- * @param cc_cls closure for cc
+ * @param cc_cls closure for @a cc
* @param test_master this callback will be called once the test is ready or
* upon timeout
- * @param test_master_cls closure for 'test_master'.
- * @return GNUNET_SYSERR on error, GNUNET_OK on success
+ * @param test_master_cls closure for @a test_master.
+ * @return #GNUNET_SYSERR on error, #GNUNET_OK on success
*/
int
GNUNET_TESTBED_test_run (const char *testname,
GNUNET_TESTBED_barrier_wait_cancel (struct GNUNET_TESTBED_BarrierWaitHandle *h);
+/**
+ * Model for configuring underlay links of a peer
+ * @ingroup underlay
+ */
+struct GNUNET_TESTBED_UnderlayLinkModel;
+
+
+/**
+ * The type of GNUNET_TESTBED_UnderlayLinkModel
+ * @ingroup underlay
+ */
+enum GNUNET_TESTBED_UnderlayLinkModelType
+{
+ /**
+ * The model is based on white listing of peers to which underlay connections
+ * are permitted. Underlay connections to all other peers will not be
+ * permitted.
+ */
+ GNUNET_TESTBED_UNDERLAYLINKMODELTYPE_BLACKLIST,
+
+ /**
+ * The model is based on black listing of peers to which underlay connections
+ * are not permitted. Underlay connections to all other peers will be
+ * permitted
+ */
+ GNUNET_TESTBED_UNDERLAYLINKMODELTYPE_WHITELIST
+};
+
+
+/**
+ * Create a GNUNET_TESTBED_UnderlayLinkModel for the given peer. A peer can
+ * have ONLY ONE model and it can be either a blacklist or whitelist based one.
+ *
+ * @ingroup underlay
+ * @param peer the peer for which the model has to be created
+ * @param type the type of the model
+ * @return the model
+ */
+struct GNUNET_TESTBED_UnderlayLinkModel *
+GNUNET_TESTBED_underlaylinkmodel_create (struct GNUNET_TESTBED_Peer *peer,
+ enum GNUNET_TESTBED_UnderlayLinkModelType type);
+
+
+/**
+ * Add a peer to the given model. Underlay connections to the given peer will
+ * be permitted if the model is whitelist based; otherwise they will not be
+ * permitted.
+ *
+ * @ingroup underlay
+ * @param model the model
+ * @param peer the peer to add
+ */
+void
+GNUNET_TESTBED_underlaylinkmodel_add_peer (struct GNUNET_TESTBED_UnderlayLinkModel *model,
+ struct GNUNET_TESTBED_Peer *peer);
+
+
+/**
+ * Set the metrics for a link to the given peer in the underlay model. The link
+ * SHOULD be permittable according to the given model.
+ *
+ * @ingroup underlay
+ * @param model the model
+ * @param peer the other end peer of the link
+ * @param latency latency of the link in microseconds
+ * @param loss data loss of the link expressed as a percentage
+ * @param bandwidth bandwidth of the link in kilobytes per second [kB/s]
+ */
+void
+GNUNET_TESTBED_underlaylinkmodel_set_link (struct GNUNET_TESTBED_UnderlayLinkModel *model,
+ struct GNUNET_TESTBED_Peer *peer,
+ uint32_t latency,
+ uint32_t loss,
+ uint32_t bandwidth);
+
+
+/**
+ * Commit the model. The model is freed in this function(!).
+ *
+ * @ingroup underlay
+ * @param model the model to commit
+ */
+void
+GNUNET_TESTBED_underlaylinkmodel_commit (struct GNUNET_TESTBED_UnderlayLinkModel *model);
+
+
+/**
+ * Free the resources of the model. Use this function only if the model has not
+ * be committed and has to be unallocated. The peer can then have another model
+ * created.
+ *
+ * @ingroup underlay
+ * @param model the model to unallocate
+ */
+void
+GNUNET_TESTBED_underlaylinkmodel_free (struct GNUNET_TESTBED_UnderlayLinkModel *model);
+
+
#if 0 /* keep Emacsens' auto-indent happy */
{
#endif