summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
authorSree Harsha Totakura <totakura@in.tum.de>2012-10-09 14:03:19 +0000
committerSree Harsha Totakura <totakura@in.tum.de>2012-10-09 14:03:19 +0000
commit8a0c060308e16374c16c5c5456b3dd2604398b5b (patch)
treebc543672a272bae5db8d898d9babc010539d150e /src
parente89947b5cb8281470ae865a3c83cd391468a136d (diff)
towards on-demand configuration retrival for remote controllers during overlay connect operations
Diffstat (limited to 'src')
-rw-r--r--src/testbed/gnunet-service-testbed.c39
-rw-r--r--src/testbed/gnunet-service-testbed.c.new3019
-rw-r--r--src/testbed/testbed.h24
-rw-r--r--src/testbed/testbed_api.c48
-rw-r--r--src/testbed/testbed_api.c.new2222
5 files changed, 5336 insertions, 16 deletions
diff --git a/src/testbed/gnunet-service-testbed.c b/src/testbed/gnunet-service-testbed.c
index 1bd22958e..05d296fee 100644
--- a/src/testbed/gnunet-service-testbed.c
+++ b/src/testbed/gnunet-service-testbed.c
@@ -180,8 +180,7 @@ struct Slave
struct GNUNET_TESTBED_Controller *controller;
/**
- * The configuration of the slave. Will be NULL for slave which we didn't
- * directly start
+ * The configuration of the slave. Cannot be NULL
*/
struct GNUNET_CONFIGURATION_Handle *cfg;
@@ -1546,7 +1545,7 @@ handle_link_controllers (void *cls, struct GNUNET_SERVER_Client *client,
GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
master_context->event_mask,
&slave_event_callback, slave);
- GNUNET_CONFIGURATION_destroy (cfg);
+ slave->cfg = cfg;
if (NULL != slave->controller)
send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
else
@@ -2474,23 +2473,31 @@ handle_overlay_connect (void *cls, struct GNUNET_SERVER_Client *client,
if ((peer2_host_id >= slave_list_size)
|| (NULL ==slave_list[peer2_host_id]))
{
- /* Peer2's host is located above us or lateral to us..
- FIXME: should try to ask for the configuration of peer2's host by
- sending a reply asking for its configuration */
- GNUNET_break (0);
- GNUNET_SERVER_client_drop (client);
+ struct GNUNET_TESTBED_NeedControllerConfig *reply;
+
GNUNET_free (occ);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ reply = GNUNET_malloc (sizeof (struct
+ GNUNET_TESTBED_NeedControllerConfig));
+ reply->header.size = htons (sizeof (struct
+ GNUNET_TESTBED_NeedControllerConfig));
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_NEEDCONTROLLERCONFIG);
+ reply->controller_host_id = msg->peer2_host_id;
+ reply->operation_id = msg->operation_id;
+ queue_message (client, &reply->header);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
return;
}
- occ->peer2_controller = slave_list[peer2_host_id]->controller;
- if (NULL == occ->peer2_controller)
+ else
{
- GNUNET_break (0);
- GNUNET_SERVER_client_drop (client);
- GNUNET_free (occ);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
+ occ->peer2_controller = slave_list[peer2_host_id]->controller;
+ if (NULL == occ->peer2_controller)
+ {
+ GNUNET_break (0); /* What's going on? */
+ GNUNET_SERVER_client_drop (client);
+ GNUNET_free (occ);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
}
}
else
diff --git a/src/testbed/gnunet-service-testbed.c.new b/src/testbed/gnunet-service-testbed.c.new
new file mode 100644
index 000000000..655885a29
--- /dev/null
+++ b/src/testbed/gnunet-service-testbed.c.new
@@ -0,0 +1,3019 @@
+/*
+ This file is part of GNUnet.
+ (C) 2012 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 2, 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.
+
+ 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 testbed/gnunet-service-testbed.c
+ * @brief implementation of the TESTBED service
+ * @author Sree Harsha Totakura
+ */
+
+#include "platform.h"
+#include "gnunet_service_lib.h"
+#include "gnunet_server_lib.h"
+#include "gnunet_transport_service.h"
+#include "gnunet_core_service.h"
+#include "gnunet_hello_lib.h"
+#include <zlib.h>
+
+#include "gnunet_testbed_service.h"
+#include "testbed.h"
+#include "testbed_api.h"
+#include "testbed_api_hosts.h"
+#include "gnunet_testing_lib-new.h"
+
+/**
+ * Generic logging
+ */
+#define LOG(kind,...) \
+ GNUNET_log (kind, __VA_ARGS__)
+
+/**
+ * Debug logging
+ */
+#define LOG_DEBUG(...) \
+ LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
+
+/**
+ * By how much should the arrays lists grow
+ */
+#define LIST_GROW_STEP 10
+
+/**
+ * Default timeout for operations which may take some time
+ */
+#define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 30)
+
+/**
+ * The main context information associated with the client which started us
+ */
+struct Context
+{
+ /**
+ * The client handle associated with this context
+ */
+ struct GNUNET_SERVER_Client *client;
+
+ /**
+ * The network address of the master controller
+ */
+ char *master_ip;
+
+ /**
+ * The TESTING system handle for starting peers locally
+ */
+ struct GNUNET_TESTING_System *system;
+
+ /**
+ * Event mask of event to be responded in this context
+ */
+ uint64_t event_mask;
+
+ /**
+ * Our host id according to this context
+ */
+ uint32_t host_id;
+};
+
+
+/**
+ * The message queue for sending messages to clients
+ */
+struct MessageQueue
+{
+ /**
+ * The message to be sent
+ */
+ struct GNUNET_MessageHeader *msg;
+
+ /**
+ * The client to send the message to
+ */
+ struct GNUNET_SERVER_Client *client;
+
+ /**
+ * next pointer for DLL
+ */
+ struct MessageQueue *next;
+
+ /**
+ * prev pointer for DLL
+ */
+ struct MessageQueue *prev;
+};
+
+
+/**
+ * The structure for identifying a shared service
+ */
+struct SharedService
+{
+ /**
+ * The name of the shared service
+ */
+ char *name;
+
+ /**
+ * Number of shared peers per instance of the shared service
+ */
+ uint32_t num_shared;
+
+ /**
+ * Number of peers currently sharing the service
+ */
+ uint32_t num_sharing;
+};
+
+
+/**
+ * A routing entry
+ */
+struct Route
+{
+ /**
+ * destination host
+ */
+ uint32_t dest;
+
+ /**
+ * The destination host is reachable thru
+ */
+ uint32_t thru;
+};
+
+
+/**
+ * Context information used while linking controllers
+ */
+struct LinkControllersContext;
+
+
+/**
+ * Structure representing a connected(directly-linked) controller
+ */
+struct Slave
+{
+ /**
+ * The controller process handle if we had started the controller
+ */
+ struct GNUNET_TESTBED_ControllerProc *controller_proc;
+
+ /**
+ * The controller handle
+ */
+ struct GNUNET_TESTBED_Controller *controller;
+
+ /**
+ * The configuration of the slave. Cannot be NULL
+ */
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+
+ /**
+ * handle to lcc which is associated with this slave startup. Should be set to
+ * NULL when the slave has successfully started up
+ */
+ struct LinkControllersContext *lcc;
+
+ /**
+ * The id of the host this controller is running on
+ */
+ uint32_t host_id;
+};
+
+
+/**
+ * States of LCFContext
+ */
+enum LCFContextState
+{
+ /**
+ * The Context has been initialized; Nothing has been done on it
+ */
+ INIT,
+
+ /**
+ * Delegated host has been registered at the forwarding controller
+ */
+ DELEGATED_HOST_REGISTERED,
+
+ /**
+ * The slave host has been registred at the forwarding controller
+ */
+ SLAVE_HOST_REGISTERED,
+
+ /**
+ * The context has been finished (may have error)
+ */
+ FINISHED
+};
+
+
+/**
+ * Link controllers request forwarding context
+ */
+struct LCFContext
+{
+ /**
+ * The gateway which will pass the link message to delegated host
+ */
+ struct Slave *gateway;
+
+ /**
+ * The controller link message that has to be forwarded to
+ */
+ struct GNUNET_TESTBED_ControllerLinkMessage *msg;
+
+ /**
+ * The client which has asked to perform this operation
+ */
+ struct GNUNET_SERVER_Client *client;
+
+ /**
+ * The host registration handle while registered hosts in this context
+ */
+ struct GNUNET_TESTBED_HostRegistrationHandle *rhandle;
+
+ /**
+ * The id of the operation which created this context
+ */
+ uint64_t operation_id;
+
+ /**
+ * The state of this context
+ */
+ enum LCFContextState state;
+
+ /**
+ * The delegated host
+ */
+ uint32_t delegated_host_id;
+
+ /**
+ * The slave host
+ */
+ uint32_t slave_host_id;
+
+};
+
+
+/**
+ * Structure of a queue entry in LCFContext request queue
+ */
+struct LCFContextQueue
+{
+ /**
+ * The LCFContext
+ */
+ struct LCFContext *lcf;
+
+ /**
+ * Head prt for DLL
+ */
+ struct LCFContextQueue *next;
+
+ /**
+ * Tail ptr for DLL
+ */
+ struct LCFContextQueue *prev;
+};
+
+
+/**
+ * A peer
+ */
+struct Peer
+{
+ union
+ {
+ struct
+ {
+ /**
+ * The peer handle from testing API
+ */
+ struct GNUNET_TESTING_Peer *peer;
+
+ /**
+ * The modified (by GNUNET_TESTING_peer_configure) configuration this
+ * peer is configured with
+ */
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+
+ /**
+ * Is the peer running
+ */
+ int is_running;
+
+ } local;
+
+ struct
+ {
+ /**
+ * The controller this peer is started through
+ */
+ struct GNUNET_TESTBED_Controller *controller;
+
+ } remote;
+
+ } details;
+
+ /**
+ * Is this peer locally created?
+ */
+ int is_remote;
+
+ /**
+ * Our local reference id for this peer
+ */
+ uint32_t id;
+
+};
+
+
+/**
+ * Context information for connecting 2 peers in overlay
+ */
+struct OverlayConnectContext
+{
+ /**
+ * The client which has requested for overlay connection
+ */
+ struct GNUNET_SERVER_Client *client;
+
+ /**
+ * the peer which has to connect to the other peer
+ */
+ struct Peer *peer;
+
+ /**
+ * Transport handle of the first peer to get its HELLO
+ */
+ struct GNUNET_TRANSPORT_Handle *p1th;
+
+ /**
+ * Transport handle of other peer to offer first peer's HELLO
+ */
+ struct GNUNET_TRANSPORT_Handle *p2th;
+
+ /**
+ * Core handles of the first peer; used to notify when second peer connects to it
+ */
+ struct GNUNET_CORE_Handle *ch;
+
+ /**
+ * HELLO of the other peer
+ */
+ struct GNUNET_MessageHeader *hello;
+
+ /**
+ * Get hello handle to acquire HELLO of first peer
+ */
+ struct GNUNET_TRANSPORT_GetHelloHandle *ghh;
+
+ /**
+ * The error message we send if this overlay connect operation has timed out
+ */
+ char *emsg;
+
+ /**
+ * Operation context for suboperations
+ */
+ struct OperationContext *opc;
+
+ /**
+ * Controller of peer 2; NULL if the peer is local
+ */
+ struct GNUNET_TESTBED_Controller *peer2_controller;
+
+ /**
+ * The peer identity of the first peer
+ */
+ struct GNUNET_PeerIdentity peer_identity;
+
+ /**
+ * The peer identity of the other peer
+ */
+ struct GNUNET_PeerIdentity other_peer_identity;
+
+ /**
+ * The id of the operation responsible for creating this context
+ */
+ uint64_t op_id;
+
+ /**
+ * The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to
+ * connect to peer 2
+ */
+ GNUNET_SCHEDULER_TaskIdentifier send_hello_task;
+
+ /**
+ * The id of the overlay connect timeout task
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout_task;
+
+ /**
+ * The id of peer A
+ */
+ uint32_t peer_id;
+
+ /**
+ * The id of peer B
+ */
+ uint32_t other_peer_id;
+
+ /**
+ * Number of times we tried to send hello; used to increase delay in offering
+ * hellos
+ */
+ uint16_t retries;
+};
+
+
+/**
+ * Context information to used during operations which forward the overlay
+ * connect message
+ */
+struct ForwardedOverlayConnectContext
+{
+ /**
+ * A copy of the original message which resulted in creation of this context
+ */
+ struct GNUNET_TESTBED_OverlayConnectMessage *oc_msg;
+
+ /**
+ * The gateway controller to which this operation is forwarded to
+ */
+ struct GNUNET_TESTBED_Controller *gateway;
+};
+
+
+/**
+ * Context information for RequestOverlayConnect
+ * operations. RequestOverlayConnect is used when peers A, B reside on different
+ * hosts and the host controller for peer B is asked by the host controller of
+ * peer A to make peer B connect to peer A
+ */
+struct RequestOverlayConnectContext
+{
+ /**
+ * The transport handle of peer B
+ */
+ struct GNUNET_TRANSPORT_Handle *th;
+
+ /**
+ * Peer A's HELLO
+ */
+ struct GNUNET_MessageHeader *hello;
+
+ /**
+ * The peer identity of peer A
+ */
+ struct GNUNET_PeerIdentity a_id;
+
+ /**
+ * Task for offering HELLO of A to B and doing try_connect
+ */
+ GNUNET_SCHEDULER_TaskIdentifier attempt_connect_task_id;
+
+ /**
+ * Task to timeout RequestOverlayConnect
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout_rocc_task_id;
+
+ /**
+ * Number of times we tried to send hello; used to increase delay in offering
+ * hellos
+ */
+ uint16_t retries;
+
+};
+
+
+/**
+ * Context information for operations forwarded to subcontrollers
+ */
+struct ForwardedOperationContext
+{
+ /**
+ * The generated operation context
+ */
+ struct OperationContext *opc;
+
+ /**
+ * The client to which we have to reply
+ */
+ struct GNUNET_SERVER_Client *client;
+
+ /**
+ * Closure pointer
+ */
+ void *cls;
+
+ /**
+ * Task ID for the timeout task
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout_task;
+
+ /**
+ * The id of the operation that has been forwarded
+ */
+ uint64_t operation_id;
+
+};
+
+
+/**
+ * Context information used while linking controllers
+ */
+struct LinkControllersContext
+{
+ /**
+ * The client which initiated the link controller operation
+ */
+ struct GNUNET_SERVER_Client *client;
+
+ /**
+ * The ID of the operation
+ */
+ uint64_t operation_id;
+
+};
+
+
+
+/**
+ * The master context; generated with the first INIT message
+ */
+static struct Context *master_context;
+
+/**
+ * Our hostname; we give this to all the peers we start
+ */
+static char *hostname;
+
+/***********/
+/* Handles */
+/***********/
+
+/**
+ * Current Transmit Handle; NULL if no notify transmit exists currently
+ */
+static struct GNUNET_SERVER_TransmitHandle *transmit_handle;
+
+/****************/
+/* Lists & Maps */
+/****************/
+
+/**
+ * The head for the LCF queue
+ */
+static struct LCFContextQueue *lcfq_head;
+
+/**
+ * The tail for the LCF queue
+ */
+static struct LCFContextQueue *lcfq_tail;
+
+/**
+ * The message queue head
+ */
+static struct MessageQueue *mq_head;
+
+/**
+ * The message queue tail
+ */
+static struct MessageQueue *mq_tail;
+
+/**
+ * Array of host list
+ */
+static struct GNUNET_TESTBED_Host **host_list;
+
+/**
+ * A list of routes
+ */
+static struct Route **route_list;
+
+/**
+ * A list of directly linked neighbours
+ */
+static struct Slave **slave_list;
+
+/**
+ * A list of peers we know about
+ */
+static struct Peer **peer_list;
+
+/**
+ * The hashmap of shared services
+ */
+static struct GNUNET_CONTAINER_MultiHashMap *ss_map;
+
+/**
+ * The size of the host list
+ */
+static uint32_t host_list_size;
+
+/**
+ * The size of the route list
+ */
+static uint32_t route_list_size;
+
+/**
+ * The size of directly linked neighbours list
+ */
+static uint32_t slave_list_size;
+
+/**
+ * The size of the peer list
+ */
+static uint32_t peer_list_size;
+
+/*********/
+/* Tasks */
+/*********/
+
+/**
+ * The lcf_task handle
+ */
+static GNUNET_SCHEDULER_TaskIdentifier lcf_proc_task_id;
+
+/**
+ * The shutdown task handle
+ */
+static GNUNET_SCHEDULER_TaskIdentifier shutdown_task_id;
+
+
+/**
+ * Function called to notify a client about the connection begin ready to queue
+ * more data. "buf" will be NULL and "size" zero if the connection was closed
+ * for writing in the meantime.
+ *
+ * @param cls NULL
+ * @param size number of bytes available in buf
+ * @param buf where the callee should write the message
+ * @return number of bytes written to buf
+ */
+static size_t
+transmit_ready_notify (void *cls, size_t size, void *buf)
+{
+ struct MessageQueue *mq_entry;
+
+ transmit_handle = NULL;
+ mq_entry = mq_head;
+ GNUNET_assert (NULL != mq_entry);
+ if (0 == size)
+ return 0;
+ GNUNET_assert (ntohs (mq_entry->msg->size) <= size);
+ size = ntohs (mq_entry->msg->size);
+ memcpy (buf, mq_entry->msg, size);
+ GNUNET_free (mq_entry->msg);
+ GNUNET_CONTAINER_DLL_remove (mq_head, mq_tail, mq_entry);
+ GNUNET_free (mq_entry);
+ mq_entry = mq_head;
+ if (NULL != mq_entry)
+ transmit_handle =
+ GNUNET_SERVER_notify_transmit_ready (mq_entry->client,
+ ntohs (mq_entry->msg->size),
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ &transmit_ready_notify, NULL);
+ return size;
+}
+
+
+/**
+ * Queues a message in send queue for sending to the service
+ *
+ * @param client the client to whom the queued message has to be sent
+ * @param msg the message to queue
+ */
+static void
+queue_message (struct GNUNET_SERVER_Client *client,
+ struct GNUNET_MessageHeader *msg)
+{
+ struct MessageQueue *mq_entry;
+ uint16_t type;
+ uint16_t size;
+
+ type = ntohs (msg->type);
+ size = ntohs (msg->size);
+ GNUNET_assert ((GNUNET_MESSAGE_TYPE_TESTBED_INIT <= type) &&
+ (GNUNET_MESSAGE_TYPE_TESTBED_MAX > type));
+ mq_entry = GNUNET_malloc (sizeof (struct MessageQueue));
+ mq_entry->msg = msg;
+ mq_entry->client = client;
+ LOG_DEBUG ("Queueing message of type %u, size %u for sending\n", type,
+ ntohs (msg->size));
+ GNUNET_CONTAINER_DLL_insert_tail (mq_head, mq_tail, mq_entry);
+ if (NULL == transmit_handle)
+ transmit_handle =
+ GNUNET_SERVER_notify_transmit_ready (client, size,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ &transmit_ready_notify, NULL);
+}
+
+
+/**
+ * Similar to GNUNET_realloc; however clears tail part of newly allocated memory
+ *
+ * @param ptr the memory block to realloc
+ * @param size the size of ptr
+ * @param new_size the size to which ptr has to be realloc'ed
+ * @return the newly reallocated memory block
+ */
+static void *
+TESTBED_realloc (void *ptr, size_t size, size_t new_size)
+{
+ ptr = GNUNET_realloc (ptr, new_size);
+ if (new_size > size)
+ (void) memset (ptr + size, 0, new_size - size);
+ return ptr;
+}
+
+
+/**
+ * Function to add a host to the current list of known hosts
+ *
+ * @param host the host to add
+ * @return GNUNET_OK on success; GNUNET_SYSERR on failure due to host-id
+ * already in use
+ */
+static int
+host_list_add (struct GNUNET_TESTBED_Host *host)
+{
+ uint32_t host_id;
+ uint32_t orig_size;
+
+ host_id = GNUNET_TESTBED_host_get_id_ (host);
+ orig_size = host_list_size;
+ if (host_list_size <= host_id)
+ {
+ while (host_list_size <= host_id)
+ host_list_size += LIST_GROW_STEP;
+ host_list =
+ TESTBED_realloc (host_list,
+ sizeof (struct GNUNET_TESTBED_Host *) * orig_size,
+ sizeof (struct GNUNET_TESTBED_Host *)
+ * host_list_size);
+ }
+ if (NULL != host_list[host_id])
+ {
+ LOG_DEBUG ("A host with id: %u already exists\n", host_id);
+ return GNUNET_SYSERR;
+ }
+ host_list[host_id] = host;
+ return GNUNET_OK;
+}
+
+
+/**
+ * Adds a route to the route list
+ *
+ * @param route the route to add
+ */
+static void
+route_list_add (struct Route *route)
+{
+ uint32_t orig_size;
+
+ orig_size = route_list_size;
+ if (route->dest >= route_list_size)
+ {
+ while (route->dest >= route_list_size)
+ route_list_size += LIST_GROW_STEP;
+ route_list =
+ TESTBED_realloc (route_list,
+ sizeof (struct Route *) * orig_size,
+ sizeof (struct Route *) * route_list_size);
+ }
+ GNUNET_assert (NULL == route_list[route->dest]);
+ route_list[route->dest] = route;
+}
+
+
+/**
+ * Adds a slave to the slave array
+ *
+ * @param slave the slave controller to add
+ */
+static void
+slave_list_add (struct Slave *slave)
+{
+ if (slave->host_id >= slave_list_size)
+ {
+ slave_list =
+ TESTBED_realloc (slave_list, sizeof (struct Slave *) * slave_list_size,
+ sizeof (struct Slave *) * (slave_list_size +
+ LIST_GROW_STEP));
+ slave_list_size += LIST_GROW_STEP;
+ }
+ GNUNET_assert (NULL == slave_list[slave->host_id]);
+ slave_list[slave->host_id] = slave;
+}
+
+
+/**
+ * Adds a peer to the peer array
+ *
+ * @param peer the peer to add
+ */
+static void
+peer_list_add (struct Peer *peer)
+{
+ uint32_t orig_size;
+
+ orig_size = peer_list_size;
+ if (peer->id >= peer_list_size)
+ {
+ while (peer->id >= peer_list_size)
+ peer_list_size += LIST_GROW_STEP;
+ peer_list =
+ TESTBED_realloc (peer_list, sizeof (struct Peer *) * orig_size,
+ sizeof (struct Peer *) * peer_list_size);
+ }
+ GNUNET_assert (NULL == peer_list[peer->id]);
+ peer_list[peer->id] = peer;
+}
+
+
+/**
+ * Removes a the give peer from the peer array
+ *
+ * @param peer the peer to be removed
+ */
+static void
+peer_list_remove (struct Peer *peer)
+{
+ uint32_t id;
+ uint32_t orig_size;
+
+ peer_list[peer->id] = NULL;
+ orig_size = peer_list_size;
+ while (peer_list_size >= LIST_GROW_STEP)
+ {
+ for (id = peer_list_size - 1;
+ (id >= peer_list_size - LIST_GROW_STEP) && (id != UINT32_MAX); id--)
+ if (NULL != peer_list[id])
+ break;
+ if (id != ((peer_list_size - LIST_GROW_STEP) - 1))
+ break;
+ peer_list_size -= LIST_GROW_STEP;
+ }
+ if (orig_size == peer_list_size)
+ return;
+ peer_list =
+ GNUNET_realloc (peer_list, sizeof (struct Peer *) * peer_list_size);
+}
+
+
+/**
+ * Finds the route with directly connected host as destination through which
+ * the destination host can be reached
+ *
+ * @param host_id the id of the destination host
+ * @return the route with directly connected destination host; NULL if no route
+ * is found
+ */
+static struct Route *
+find_dest_route (uint32_t host_id)
+{
+ struct Route *route;
+
+ while (NULL != (route = route_list[host_id]))
+ {
+ if (route->thru == master_context->host_id)
+ break;
+ host_id = route->thru;
+ }
+ return route;
+}
+
+
+/**
+ * Routes message to a host given its host_id
+ *
+ * @param host_id the id of the destination host
+ * @param msg the message to be routed
+ */
+static void
+route_message (uint32_t host_id, const struct GNUNET_MessageHeader *msg)
+{
+ GNUNET_break (0);
+}
+
+
+/**
+ * Send operation failure message to client
+ *
+ * @param client the client to which the failure message has to be sent to
+ * @param operation_id the id of the failed operation
+ * @param emsg the error message; can be NULL
+ */
+static void
+send_operation_fail_msg (struct GNUNET_SERVER_Client *client,
+ uint64_t operation_id, const char *emsg)
+{
+ struct GNUNET_TESTBED_OperationFailureEventMessage *msg;
+ uint16_t msize;
+ uint16_t emsg_len;
+
+ msize = sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage);
+ emsg_len = (NULL == emsg) ? 0 : strlen (emsg) + 1;
+ msize += emsg_len;
+ msg = GNUNET_malloc (msize);
+ msg->header.size = htons (msize);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONFAILEVENT);
+ msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
+ msg->operation_id = GNUNET_htonll (operation_id);
+ if (0 != emsg_len)
+ memcpy (&msg[1], emsg, emsg_len);
+ queue_message (client, &msg->header);
+}
+
+
+/**
+ * Function to send generic operation success message to given client
+ *
+ * @param client the client to send the message to
+ * @param operation_id the id of the operation which was successful
+ */
+static void
+send_operation_success_msg (struct GNUNET_SERVER_Client *client,
+ uint64_t operation_id)
+{
+ struct GNUNET_TESTBED_GenericOperationSuccessEventMessage *msg;
+ uint16_t msize;
+
+ msize = sizeof (struct GNUNET_TESTBED_GenericOperationSuccessEventMessage);
+ msg = GNUNET_malloc (msize);
+ msg->header.size = htons (msize);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS);
+ msg->operation_id = GNUNET_htonll (operation_id);
+ msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
+ queue_message (client, &msg->header);
+}
+
+
+/**
+ * The Link Controller forwarding task
+ *
+ * @param cls the LCFContext
+ * @param tc the Task context from scheduler
+ */
+static void
+lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
+/**
+ * Completion callback for host registrations while forwarding Link Controller messages
+ *
+ * @param cls the LCFContext
+ * @param emsg the error message; NULL if host registration is successful
+ */
+static void
+lcf_proc_cc (void *cls, const char *emsg)
+{
+ struct LCFContext *lcf = cls;
+
+ lcf->rhandle = NULL;
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
+ switch (lcf->state)
+ {
+ case INIT:
+ if (NULL != emsg)
+ goto registration_error;
+ lcf->state = DELEGATED_HOST_REGISTERED;
+ lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
+ break;
+ case DELEGATED_HOST_REGISTERED:
+ if (NULL != emsg)
+ goto registration_error;
+ lcf->state = SLAVE_HOST_REGISTERED;
+ lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
+ break;
+ default:
+ GNUNET_assert (0); /* Shouldn't reach here */
+ }
+ return;
+
+ registration_error:
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Host registration failed with message: %s\n",
+ emsg);
+ lcf->state = FINISHED;
+ lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
+}
+
+
+/**
+ * Callback to be called when forwarded link controllers operation is
+ * successfull. We have to relay the reply msg back to the client
+ *
+ * @param cls ForwardedOperationContext
+ * @param msg the peer create success message
+ */
+static void
+forwarded_operation_reply_relay (void *cls,
+ const struct GNUNET_MessageHeader *msg)
+{
+ struct ForwardedOperationContext *fopc = cls;
+ struct GNUNET_MessageHeader *dup_msg;
+ uint16_t msize;
+
+ msize = ntohs (msg->size);
+ LOG_DEBUG ("Relaying message with type: %u, size: %u\n", ntohs (msg->type),
+ msize);
+ dup_msg = GNUNET_malloc (msize);
+ (void) memcpy (dup_msg, msg, msize);
+ queue_message (fopc->client, dup_msg);
+ GNUNET_SERVER_client_drop (fopc->client);
+ GNUNET_SCHEDULER_cancel (fopc->timeout_task);
+ GNUNET_free (fopc);
+}
+
+
+/**
+ * Task to free resources when forwarded link controllers has been timedout
+ *
+ * @param cls the ForwardedOperationContext
+ * @param tc the task context from scheduler
+ */
+static void
+forwarded_operation_timeout (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct ForwardedOperationContext *fopc = cls;
+
+ GNUNET_TESTBED_forward_operation_msg_cancel_ (fopc->opc);
+ send_operation_fail_msg (fopc->client, fopc->operation_id, "Timeout");
+ GNUNET_SERVER_client_drop (fopc->client);
+ GNUNET_free (fopc);
+}
+
+
+/**
+ * The Link Controller forwarding task
+ *
+ * @param cls the LCFContext
+ * @param tc the Task context from scheduler
+ */
+static void
+lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct LCFContext *lcf = cls;
+ struct LCFContextQueue *lcfq;
+ struct ForwardedOperationContext *fopc;
+
+ lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
+ switch (lcf->state)
+ {
+ case INIT:
+ if (GNUNET_NO ==
+ GNUNET_TESTBED_is_host_registered_ (host_list[lcf->delegated_host_id],
+ lcf->gateway->controller))
+ {
+ lcf->rhandle =
+ GNUNET_TESTBED_register_host (lcf->gateway->controller,
+ host_list[lcf->delegated_host_id],
+ lcf_proc_cc, lcf);
+ }
+ else
+ {
+ lcf->state = DELEGATED_HOST_REGISTERED;
+ lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
+ }
+ break;
+ case DELEGATED_HOST_REGISTERED:
+ if (GNUNET_NO ==
+ GNUNET_TESTBED_is_host_registered_ (host_list[lcf->slave_host_id],
+ lcf->gateway->controller))
+ {
+ lcf->rhandle =
+ GNUNET_TESTBED_register_host (lcf->gateway->controller,
+ host_list[lcf->slave_host_id],
+ lcf_proc_cc, lcf);
+ }
+ else
+ {
+ lcf->state = SLAVE_HOST_REGISTERED;
+ lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
+ }
+ break;
+ case SLAVE_HOST_REGISTERED:
+ fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
+ fopc->client = lcf->client;
+ fopc->operation_id = lcf->operation_id;
+ fopc->opc =
+ GNUNET_TESTBED_forward_operation_msg_ (lcf->gateway->controller,
+ lcf->operation_id,
+ &lcf->msg->header,
+ &forwarded_operation_reply_relay,
+ fopc);
+ fopc->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
+ fopc);
+ lcf->state = FINISHED;
+ lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
+ break;
+ case FINISHED:
+ lcfq = lcfq_head;
+ GNUNET_assert (lcfq->lcf == lcf);
+ GNUNET_free (lcf->msg);
+ GNUNET_free (lcf);
+ GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
+ GNUNET_free (lcfq);
+ if (NULL != lcfq_head)
+ lcf_proc_task_id =
+ GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq_head->lcf);
+ }
+}
+
+
+/**
+ * Callback for event from slave controllers
+ *
+ * @param cls struct Slave *
+ * @param event information about the event
+ */
+static void
+slave_event_callback (void *cls,
+ const struct GNUNET_TESTBED_EventInformation *event)
+{
+ GNUNET_break (0);
+}
+
+
+/**
+ * Callback to signal successfull startup of the controller process
+ *
+ * @param cls the handle to the slave whose status is to be found here
+ * @param cfg the configuration with which the controller has been started;
+ * NULL if status is not GNUNET_OK
+ * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
+ * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
+ */
+static void
+slave_status_callback (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,
+ int status)
+{
+ struct Slave *slave = cls;
+ struct LinkControllersContext *lcc;
+
+ lcc = slave->lcc;
+ if (GNUNET_SYSERR == status)
+ {
+ slave->controller_proc = NULL;
+ slave_list[slave->host_id] = NULL;
+ if (NULL != slave->cfg)
+ GNUNET_CONFIGURATION_destroy (slave->cfg);
+ GNUNET_free (slave);
+ slave = NULL;
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Unexpected slave shutdown\n");
+ GNUNET_SCHEDULER_shutdown (); /* We too shutdown */
+ goto clean_lcc;
+ }
+ slave->controller =
+ GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
+ master_context->event_mask,
+ &slave_event_callback, slave);
+ if (NULL != slave->controller)
+ {
+ send_operation_success_msg (lcc->client, lcc->operation_id);
+ slave->cfg = GNUNET_CONFIGURATION_dup (cfg);
+ }
+ else
+ {
+ send_operation_fail_msg (lcc->client, lcc->operation_id,
+ "Could not connect to delegated controller");
+ GNUNET_TESTBED_controller_stop (slave->controller_proc);
+ slave_list[slave->host_id] = NULL;
+ GNUNET_free (slave);
+ slave = NULL;
+ }
+
+ clean_lcc:
+ if (NULL != lcc)
+ {
+ if (NULL != lcc->client)
+ {
+ GNUNET_SERVER_receive_done (lcc->client, GNUNET_OK);
+ GNUNET_SERVER_client_drop (lcc->client);
+ lcc->client = NULL;
+ }
+ GNUNET_free (lcc);
+ }
+ if (NULL != slave)
+ slave->lcc = NULL;
+}
+
+
+/**
+ * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_INIT messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_init (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_InitMessage *msg;
+ struct GNUNET_TESTBED_Host *host;
+ const char *controller_hostname;
+ uint16_t msize;
+
+ if (NULL != master_context)
+ {
+ LOG_DEBUG ("We are being connected to laterally\n");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ msg = (const struct GNUNET_TESTBED_InitMessage *) message;
+ msize = ntohs (message->size);
+ if (msize <= sizeof (struct GNUNET_TESTBED_InitMessage))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ msize -= sizeof (struct GNUNET_TESTBED_InitMessage);
+ controller_hostname = (const char *) &msg[1];
+ if ('\0' != controller_hostname[msize - 1])
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ master_context = GNUNET_malloc (sizeof (struct Context));
+ master_context->client = client;
+ master_context->host_id = ntohl (msg->host_id);
+ master_context->master_ip = GNUNET_strdup (controller_hostname);
+ LOG_DEBUG ("Master Controller IP: %s\n", master_context->master_ip);
+ master_context->system =
+ GNUNET_TESTING_system_create ("testbed", master_context->master_ip, hostname);
+ host =
+ GNUNET_TESTBED_host_create_with_id (master_context->host_id, NULL, NULL,
+ 0);
+ host_list_add (host);
+ master_context->event_mask = GNUNET_ntohll (msg->event_mask);
+ GNUNET_SERVER_client_keep (client);
+ LOG_DEBUG ("Created master context with host ID: %u\n",
+ master_context->host_id);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_add_host (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct GNUNET_TESTBED_Host *host;
+ const struct GNUNET_TESTBED_AddHostMessage *msg;
+ struct GNUNET_TESTBED_HostConfirmedMessage *reply;
+ char *username;
+ char *hostname;
+ char *emsg;
+ uint32_t host_id;
+ uint16_t username_length;
+ uint16_t hostname_length;
+ uint16_t reply_size;
+ uint16_t msize;
+
+ msg = (const struct GNUNET_TESTBED_AddHostMessage *) message;
+ msize = ntohs (msg->header.size);
+ username = (char *) &(msg[1]);
+ username_length = ntohs (msg->user_name_length);
+ GNUNET_assert (msize > (sizeof (struct GNUNET_TESTBED_AddHostMessage) + username_length + 1)); /* msg must contain hostname */
+ if (0 != username_length)
+ GNUNET_assert ('\0' == username[username_length]);
+ username_length = (0 == username_length) ? 0 : username_length + 1;
+ hostname = username + username_length;
+ hostname_length =
+ msize - (sizeof (struct GNUNET_TESTBED_AddHostMessage) + username_length);
+ GNUNET_assert ('\0' == hostname[hostname_length - 1]);
+ GNUNET_assert (strlen (hostname) == hostname_length - 1);
+ host_id = ntohl (msg->host_id);
+ LOG_DEBUG ("Received ADDHOST message\n");
+ LOG_DEBUG ("-------host id: %u\n", host_id);
+ LOG_DEBUG ("-------hostname: %s\n", hostname);
+ if (0 != username_length)
+ LOG_DEBUG ("-------username: %s\n", username);
+ else
+ {
+ LOG_DEBUG ("-------username: NULL\n");
+ username = NULL;
+ }
+ LOG_DEBUG ("-------ssh port: %u\n", ntohs (msg->ssh_port));
+ host =
+ GNUNET_TESTBED_host_create_with_id (host_id, hostname, username,
+ ntohs (msg->ssh_port));
+ GNUNET_assert (NULL != host);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ reply_size = sizeof (struct GNUNET_TESTBED_HostConfirmedMessage);
+ if (GNUNET_OK != host_list_add (host))
+ {
+ /* We are unable to add a host */
+ emsg = "A host exists with given host-id";
+ LOG_DEBUG ("%s: %u", emsg, host_id);
+ GNUNET_TESTBED_host_destroy (host);
+ reply_size += strlen (emsg) + 1;
+ reply = GNUNET_malloc (reply_size);
+ memcpy (&reply[1], emsg, strlen (emsg) + 1);
+ }
+ else
+ reply = GNUNET_malloc (reply_size);
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM);
+ reply->header.size = htons (reply_size);
+ reply->host_id = htonl (host_id);
+ queue_message (client, &reply->header);
+}
+
+
+/**
+ * Iterator over hash map entries.
+ *
+ * @param cls closure
+ * @param key current key code
+ * @param value value in the hash map
+ * @return GNUNET_YES if we should continue to
+ * iterate,
+ * GNUNET_NO if not.
+ */
+int
+ss_exists_iterator (void *cls, const struct GNUNET_HashCode *key, void *value)
+{
+ struct SharedService *queried_ss = cls;
+ struct SharedService *ss = value;
+
+ if (0 == strcmp (ss->name, queried_ss->name))
+ return GNUNET_NO;
+ else
+ return GNUNET_YES;
+}
+
+
+/**
+ * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_configure_shared_service (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
+ struct SharedService *ss;
+ char *service_name;
+ struct GNUNET_HashCode hash;
+ uint16_t msg_size;
+ uint16_t service_name_size;
+
+ msg = (const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *) message;
+ msg_size = ntohs (message->size);
+ if (msg_size <= sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ service_name_size =
+ msg_size - sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage);
+ service_name = (char *) &msg[1];
+ if ('\0' != service_name[service_name_size - 1])
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ LOG_DEBUG ("Received service sharing request for %s, with %d peers\n",
+ service_name, ntohl (msg->num_peers));
+ if (ntohl (msg->host_id) != master_context->host_id)
+ {
+ route_message (ntohl (msg->host_id), message);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ ss = GNUNET_malloc (sizeof (struct SharedService));
+ ss->name = strdup (service_name);
+ ss->num_shared = ntohl (msg->num_peers);
+ GNUNET_CRYPTO_hash (ss->name, service_name_size, &hash);
+ if (GNUNET_SYSERR ==
+ GNUNET_CONTAINER_multihashmap_get_multiple (ss_map, &hash,
+ &ss_exists_iterator, ss))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Service %s already configured as a shared service. "
+ "Ignoring service sharing request \n", ss->name);
+ GNUNET_free (ss->name);
+ GNUNET_free (ss);
+ return;
+ }
+ GNUNET_CONTAINER_multihashmap_put (ss_map, &hash, ss,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
+}
+
+
+/**
+ * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS message
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_link_controllers (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_ControllerLinkMessage *msg;
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+ struct LCFContextQueue *lcfq;
+ struct Route *route;
+ struct Route *new_route;
+ char *config;
+ uLongf dest_size;
+ size_t config_size;
+ uint32_t delegated_host_id;
+ uint32_t slave_host_id;
+ uint16_t msize;
+
+ if (NULL == master_context)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ msize = ntohs (message->size);
+ if (sizeof (struct GNUNET_TESTBED_ControllerLinkMessage) >= msize)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ msg = (const struct GNUNET_TESTBED_ControllerLinkMessage *) message;
+ delegated_host_id = ntohl (msg->delegated_host_id);
+ if (delegated_host_id == master_context->host_id)
+ {
+ GNUNET_break (0);
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Trying to link ourselves\n");
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ if ((delegated_host_id >= host_list_size) ||
+ (NULL == host_list[delegated_host_id]))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Delegated host %u not registered with us\n", delegated_host_id);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ slave_host_id = ntohl (msg->slave_host_id);
+ if ((slave_host_id >= host_list_size) || (NULL == host_list[slave_host_id]))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Slave host not registered with us\n");
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ if (slave_host_id == delegated_host_id)
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Slave and delegated host are same\n");
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+
+ if (slave_host_id == master_context->host_id) /* Link from us */
+ {
+ struct Slave *slave;
+ struct LinkControllersContext *lcc;
+
+ msize -= sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
+ config_size = ntohs (msg->config_size);
+ if ((delegated_host_id < slave_list_size) && (NULL != slave_list[delegated_host_id])) /* We have already added */
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Host %u already connected\n",
+ delegated_host_id);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ config = GNUNET_malloc (config_size);
+ dest_size = (uLongf) config_size;
+ if (Z_OK !=
+ uncompress ((Bytef *) config, &dest_size, (const Bytef *) &msg[1],
+ (uLong) msize))
+ {
+ GNUNET_break (0); /* Compression error */
+ GNUNET_free (config);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ if (config_size != dest_size)
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Uncompressed config size mismatch\n");
+ GNUNET_free (config);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ cfg = GNUNET_CONFIGURATION_create (); /* Free here or in lcfcontext */
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_deserialize (cfg, config, config_size, GNUNET_NO))
+ {
+ GNUNET_break (0); /* Configuration parsing error */
+ GNUNET_free (config);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ GNUNET_free (config);
+ if ((delegated_host_id < slave_list_size) &&
+ (NULL != slave_list[delegated_host_id]))
+ {
+ GNUNET_break (0); /* Configuration parsing error */
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ slave = GNUNET_malloc (sizeof (struct Slave));
+ slave->host_id = delegated_host_id;
+ slave_list_add (slave);
+ if (1 != msg->is_subordinate)
+ {
+ slave->controller =
+ GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
+ master_context->event_mask,
+ &slave_event_callback, slave);
+ slave->cfg = cfg;
+ if (NULL != slave->controller)
+ send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
+ else
+ send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
+ "Could not connect to delegated controller");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ lcc = GNUNET_malloc (sizeof (struct LinkControllersContext));
+ lcc->operation_id = GNUNET_ntohll (msg->operation_id);
+ GNUNET_SERVER_client_keep (client);
+ lcc->client = client;
+ slave->lcc = lcc;
+ slave->controller_proc =
+ GNUNET_TESTBED_controller_start (master_context->master_ip,
+ host_list[slave->host_id], cfg,
+ &slave_status_callback, slave);
+ GNUNET_CONFIGURATION_destroy (cfg);
+ new_route = GNUNET_malloc (sizeof (struct Route));
+ new_route->dest = delegated_host_id;
+ new_route->thru = master_context->host_id;
+ route_list_add (new_route);
+ return;
+ }
+
+ /* Route the request */
+ if (slave_host_id >= route_list_size)
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING, "No route towards slave host");
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ lcfq = GNUNET_malloc (sizeof (struct LCFContextQueue));
+ lcfq->lcf = GNUNET_malloc (sizeof (struct LCFContext));
+ lcfq->lcf->delegated_host_id = delegated_host_id;
+ lcfq->lcf->slave_host_id = slave_host_id;
+ route = find_dest_route (slave_host_id);
+ GNUNET_assert (NULL != route); /* because we add routes carefully */
+ GNUNET_assert (route->dest < slave_list_size);
+ GNUNET_assert (NULL != slave_list[route->dest]);
+ lcfq->lcf->state = INIT;
+ lcfq->lcf->operation_id = GNUNET_ntohll (msg->operation_id);
+ lcfq->lcf->gateway = slave_list[route->dest];
+ lcfq->lcf->msg = GNUNET_malloc (msize);
+ (void) memcpy (lcfq->lcf->msg, msg, msize);
+ GNUNET_SERVER_client_keep (client);
+ lcfq->lcf->client = client;
+ if (NULL == lcfq_head)
+ {
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
+ GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
+ lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq->lcf);
+ }
+ else
+ GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
+ /* FIXME: Adding a new route should happen after the controllers are linked
+ * successfully */
+ if (1 != msg->is_subordinate)
+ {
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ if ((delegated_host_id < route_list_size)
+ && (NULL != route_list[delegated_host_id]))
+ {
+ GNUNET_break_op (0); /* Are you trying to link delegated host twice
+ with is subordinate flag set to GNUNET_YES? */
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ new_route = GNUNET_malloc (sizeof (struct Route));
+ new_route->dest = delegated_host_id;
+ new_route->thru = route->dest;
+ route_list_add (new_route);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * The task to be executed if the forwarded peer create operation has been
+ * timed out
+ *
+ * @param cls the FowardedOperationContext
+ * @param tc the TaskContext from the scheduler
+ */
+static void
+peer_create_forward_timeout (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct ForwardedOperationContext *fo_ctxt = cls;
+
+ /* send error msg to client */
+ send_operation_fail_msg (fo_ctxt->client, fo_ctxt->operation_id, "Timedout");
+ GNUNET_SERVER_client_drop (fo_ctxt->client);
+ GNUNET_TESTBED_forward_operation_msg_cancel_ (fo_ctxt->opc);
+ GNUNET_free (fo_ctxt);
+}
+
+
+/**
+ * Callback to be called when forwarded peer create operation is
+ * successfull. We have to relay the reply msg back to the client
+ *
+ * @param cls ForwardedOperationContext
+ * @param msg the peer create success message
+ */
+static void
+peer_create_success_cb (void *cls, const struct GNUNET_MessageHeader *msg)
+{
+ struct ForwardedOperationContext *fo_ctxt = cls;
+ const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *success_msg;
+ struct GNUNET_MessageHeader *dup_msg;
+ struct Peer *peer;
+ uint16_t msize;
+
+ GNUNET_SCHEDULER_cancel (fo_ctxt->timeout_task);
+ if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS)
+ {
+ success_msg =
+ (const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *) msg;
+ peer = GNUNET_malloc (sizeof (struct Peer));
+ peer->is_remote = GNUNET_YES;
+ peer->id = ntohl (success_msg->peer_id);
+ GNUNET_assert (NULL != fo_ctxt->cls);
+ peer->details.remote.controller = fo_ctxt->cls;
+ peer_list_add (peer);
+ }
+ msize = ntohs (msg->size);
+ dup_msg = GNUNET_malloc (msize);
+ (void) memcpy (dup_msg, msg, msize);
+ queue_message (fo_ctxt->client, dup_msg);
+ GNUNET_SERVER_client_drop (fo_ctxt->client);
+ GNUNET_free (fo_ctxt);
+}
+
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_peer_create (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_PeerCreateMessage *msg;
+ struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *reply;
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+ struct ForwardedOperationContext *fo_ctxt;
+ struct Route *route;
+ struct Peer *peer;
+ char *config;
+ size_t dest_size;
+ int ret;
+ uint32_t config_size;
+ uint32_t host_id;
+ uint32_t peer_id;
+ uint16_t msize;
+
+
+ msize = ntohs (message->size);
+ if (msize <= sizeof (struct GNUNET_TESTBED_PeerCreateMessage))
+ {
+ GNUNET_break (0); /* We need configuration */
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ msg = (const struct GNUNET_TESTBED_PeerCreateMessage *) message;
+ host_id = ntohl (msg->host_id);
+ peer_id = ntohl (msg->peer_id);
+ if (UINT32_MAX == peer_id)
+ {
+ send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
+ "Cannot create peer with given ID");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ if (host_id == master_context->host_id)
+ {
+ char *emsg;
+
+ /* We are responsible for this peer */
+ msize -= sizeof (struct GNUNET_TESTBED_PeerCreateMessage);
+ config_size = ntohl (msg->config_size);
+ config = GNUNET_malloc (config_size);
+ dest_size = config_size;
+ if (Z_OK !=
+ (ret =
+ uncompress ((Bytef *) config, (uLongf *) & dest_size,
+ (const Bytef *) &msg[1], (uLong) msize)))
+ {
+ GNUNET_break (0); /* uncompression error */
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ if (config_size != dest_size)
+ {
+ GNUNET_break (0); /* Uncompressed config size mismatch */
+ GNUNET_free (config);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ cfg = GNUNET_CONFIGURATION_create ();
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_deserialize (cfg, config, config_size, GNUNET_NO))
+ {
+ GNUNET_break (0); /* Configuration parsing error */
+ GNUNET_free (config);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ GNUNET_free (config);
+ peer = GNUNET_malloc (sizeof (struct Peer));
+ peer->is_remote = GNUNET_NO;
+ peer->details.local.cfg = cfg;
+ peer->id = peer_id;
+ LOG_DEBUG ("Creating peer with id: %u\n", peer->id);
+ peer->details.local.peer =
+ GNUNET_TESTING_peer_configure (master_context->system,
+ peer->details.local.cfg, peer->id,
+ NULL /* Peer id */ ,
+ &emsg);
+ if (NULL == peer->details.local.peer)
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Configuring peer failed: %s\n", emsg);
+ GNUNET_free (emsg);
+ GNUNET_free (peer);
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ peer->details.local.is_running = GNUNET_NO;
+ peer_list_add (peer);
+ reply =
+ GNUNET_malloc (sizeof
+ (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
+ reply->header.size =
+ htons (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS);
+ reply->peer_id = msg->peer_id;
+ reply->operation_id = msg->operation_id;
+ queue_message (client, &reply->header);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+
+ /* Forward peer create request */
+ route = find_dest_route (host_id);
+ if (NULL == route)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ fo_ctxt = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
+ GNUNET_SERVER_client_keep (client);
+ fo_ctxt->client = client;
+ fo_ctxt->operation_id = GNUNET_ntohll (msg->operation_id);
+ fo_ctxt->cls = slave_list[route->dest]->controller;
+ fo_ctxt->opc =
+ GNUNET_TESTBED_forward_operation_msg_ (slave_list
+ [route->dest]->controller,
+ fo_ctxt->operation_id,
+ &msg->header,
+ peer_create_success_cb, fo_ctxt);
+ fo_ctxt->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &peer_create_forward_timeout,
+ fo_ctxt);
+
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_peer_destroy (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_PeerDestroyMessage *msg;
+ struct ForwardedOperationContext *fopc;
+ struct Peer *peer;
+ uint32_t peer_id;
+
+ msg = (const struct GNUNET_TESTBED_PeerDestroyMessage *) message;
+ peer_id = ntohl (msg->peer_id);
+ LOG_DEBUG ("Received peer destory on peer: %u and operation id: %ul\n",
+ peer_id, GNUNET_ntohll (msg->operation_id));
+ if ((peer_list_size <= peer_id) || (NULL == peer_list[peer_id]))
+ {
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "Asked to destroy a non existent peer with id: %u\n", peer_id);
+ send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
+ "Peer doesn't exist");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ peer = peer_list[peer_id];
+ if (GNUNET_YES == peer->is_remote)
+ {
+ /* Forward the destory message to sub controller */
+ fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
+ GNUNET_SERVER_client_keep (client);
+ fopc->client = client;
+ fopc->operation_id = GNUNET_ntohll (msg->operation_id);
+ fopc->opc =
+ GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
+ fopc->operation_id, &msg->header,
+ &forwarded_operation_reply_relay,
+ fopc);
+ fopc->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
+ fopc);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ GNUNET_TESTING_peer_destroy (peer->details.local.peer);
+ GNUNET_CONFIGURATION_destroy (peer->details.local.cfg);
+ peer_list_remove (peer);
+ GNUNET_free (peer);
+ send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_peer_start (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_PeerStartMessage *msg;
+ struct GNUNET_TESTBED_PeerEventMessage *reply;
+ struct ForwardedOperationContext *fopc;
+ struct Peer *peer;
+ uint32_t peer_id;
+
+ msg = (const struct GNUNET_TESTBED_PeerStartMessage *) message;
+ peer_id = ntohl (msg->peer_id);
+ if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
+ {
+ GNUNET_break (0);
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "Asked to start a non existent peer with id: %u\n", peer_id);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ peer = peer_list[peer_id];
+ if (GNUNET_YES == peer->is_remote)
+ {
+ fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
+ GNUNET_SERVER_client_keep (client);
+ fopc->client = client;
+ fopc->operation_id = GNUNET_ntohll (msg->operation_id);
+ fopc->opc =
+ GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
+ fopc->operation_id, &msg->header,
+ &forwarded_operation_reply_relay,
+ fopc);
+ fopc->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
+ fopc);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ if (GNUNET_OK != GNUNET_TESTING_peer_start (peer->details.local.peer))
+ {
+ send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
+ "Failed to start");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ peer->details.local.is_running = GNUNET_YES;
+ reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
+ reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
+ reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_START);
+ reply->host_id = htonl (master_context->host_id);
+ reply->peer_id = msg->peer_id;
+ reply->operation_id = msg->operation_id;
+ queue_message (client, &reply->header);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_peer_stop (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_PeerStopMessage *msg;
+ struct GNUNET_TESTBED_PeerEventMessage *reply;
+ struct ForwardedOperationContext *fopc;
+ struct Peer *peer;
+ uint32_t peer_id;
+
+ msg = (const struct GNUNET_TESTBED_PeerStopMessage *) message;
+ peer_id = ntohl (msg->peer_id);
+ if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
+ {
+ send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
+ "Peer not found");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ peer = peer_list[peer_id];
+ if (GNUNET_YES == peer->is_remote)
+ {
+ fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
+ GNUNET_SERVER_client_keep (client);
+ fopc->client = client;
+ fopc->operation_id = GNUNET_ntohll (msg->operation_id);
+ fopc->opc =
+ GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
+ fopc->operation_id, &msg->header,
+ &forwarded_operation_reply_relay,
+ fopc);
+ fopc->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
+ fopc);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ if (GNUNET_OK != GNUNET_TESTING_peer_stop (peer->details.local.peer))
+ {
+ send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
+ "Peer not running");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ peer->details.local.is_running = GNUNET_NO;
+ reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
+ reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
+ reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_STOP);
+ reply->host_id = htonl (master_context->host_id);
+ reply->peer_id = msg->peer_id;
+ reply->operation_id = msg->operation_id;
+ queue_message (client, &reply->header);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_peer_get_config (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_PeerGetConfigurationMessage *msg;
+ struct GNUNET_TESTBED_PeerConfigurationInformationMessage *reply;
+ struct Peer *peer;
+ char *config;
+ char *xconfig;
+ size_t c_size;
+ size_t xc_size;
+ uint32_t peer_id;
+ uint16_t msize;
+
+ msg = (const struct GNUNET_TESTBED_PeerGetConfigurationMessage *) message;
+ peer_id = ntohl (msg->peer_id);
+ if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
+ {
+ send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
+ "Peer not found");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ peer = peer_list[peer_id];
+ if (GNUNET_YES == peer->is_remote)
+ {
+ struct ForwardedOperationContext *fopc;
+
+ fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
+ GNUNET_SERVER_client_keep (client);
+ fopc->client = client;
+ fopc->operation_id = GNUNET_ntohll (msg->operation_id);
+ fopc->opc =
+ GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
+ fopc->operation_id, &msg->header,
+ &forwarded_operation_reply_relay,
+ fopc);
+ fopc->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
+ fopc);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ config =
+ GNUNET_CONFIGURATION_serialize (peer_list[peer_id]->details.local.cfg,
+ &c_size);
+ xc_size = GNUNET_TESTBED_compress_config_ (config, c_size, &xconfig);
+ GNUNET_free (config);
+ msize =
+ xc_size +
+ sizeof (struct GNUNET_TESTBED_PeerConfigurationInformationMessage);
+ reply = GNUNET_realloc (xconfig, msize);
+ (void) memmove (&reply[1], reply, xc_size);
+ reply->header.size = htons (msize);
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG);
+ reply->peer_id = msg->peer_id;
+ reply->operation_id = msg->operation_id;
+ GNUNET_TESTING_peer_get_identity (peer_list[peer_id]->details.local.peer,
+ &reply->peer_identity);
+ reply->config_size = htons ((uint16_t) c_size);
+ queue_message (client, &reply->header);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Task for cleaing up overlay connect context structure
+ *
+ * @param cls the overlay connect context
+ * @param tc the task context
+ */
+static void
+occ_cleanup (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct OverlayConnectContext *occ = cls;
+
+ LOG_DEBUG ("Cleaning up occ\n");
+ GNUNET_free_non_null (occ->emsg);
+ GNUNET_free_non_null (occ->hello);
+ GNUNET_SERVER_client_drop (occ->client);
+ if (NULL != occ->opc)
+ GNUNET_TESTBED_forward_operation_msg_cancel_ (occ->opc);
+ if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
+ GNUNET_SCHEDULER_cancel (occ->send_hello_task);
+ if (NULL != occ->ch)
+ GNUNET_CORE_disconnect (occ->ch);
+ if (NULL != occ->ghh)
+ GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
+ if (NULL != occ->p1th)
+ GNUNET_TRANSPORT_disconnect (occ->p1th);
+ if (NULL != occ->p2th)
+ GNUNET_TRANSPORT_disconnect (occ->p2th);
+ GNUNET_free (occ);
+}
+
+
+/**
+ * Task which will be run when overlay connect request has been timed out
+ *
+ * @param cls the OverlayConnectContext
+ * @param tc the TaskContext
+ */
+static void
+timeout_overlay_connect (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct OverlayConnectContext *occ = cls;
+
+ occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ send_operation_fail_msg (occ->client, occ->op_id, occ->emsg);
+ occ_cleanup (occ, tc);
+}
+
+
+
+/**
+ * Function called to notify transport users that another
+ * peer connected to us.
+ *
+ * @param cls closure
+ * @param new_peer the peer that connected
+ * @param ats performance data
+ * @param ats_count number of entries in ats (excluding 0-termination)
+ */
+static void
+overlay_connect_notify (void *cls, const struct GNUNET_PeerIdentity *new_peer,
+ const struct GNUNET_ATS_Information *ats,
+ unsigned int ats_count)
+{
+ struct OverlayConnectContext *occ = cls;
+ struct GNUNET_TESTBED_ConnectionEventMessage *msg;
+ char *new_peer_str;
+ char *other_peer_str;
+
+ LOG_DEBUG ("Overlay connect notify\n");
+ if (0 ==
+ memcmp (new_peer, &occ->peer_identity,
+ sizeof (struct GNUNET_PeerIdentity)))
+ return;
+ new_peer_str = GNUNET_strdup (GNUNET_i2s (new_peer));
+ other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
+ if (0 !=
+ memcmp (new_peer, &occ->other_peer_identity,
+ sizeof (struct GNUNET_PeerIdentity)))
+ {
+ LOG_DEBUG ("Unexpected peer %4s connected when expecting peer %4s\n",
+ new_peer_str, other_peer_str);
+ GNUNET_free (new_peer_str);
+ GNUNET_free (other_peer_str);
+ return;
+ }
+ GNUNET_free (new_peer_str);
+ LOG_DEBUG ("Peer %4s connected to peer %4s\n", other_peer_str,
+ GNUNET_i2s (&occ->peer_identity));
+ GNUNET_free (other_peer_str);
+ if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
+ {
+ GNUNET_SCHEDULER_cancel (occ->send_hello_task);
+ occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != occ->timeout_task);
+ GNUNET_SCHEDULER_cancel (occ->timeout_task);
+ occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_free_non_null (occ->emsg);
+ occ->emsg = NULL;
+ if (NULL != occ->p2th)
+ GNUNET_TRANSPORT_disconnect (occ->p2th);
+ occ->p2th = NULL;
+ LOG_DEBUG ("Peers connected - Sending overlay connect success\n");
+ msg = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
+ msg->header.size =
+ htons (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT);
+ msg->event_type = htonl (GNUNET_TESTBED_ET_CONNECT);
+ msg->peer1 = htonl (occ->peer_id);
+ msg->peer2 = htonl (occ->other_peer_id);
+ msg->operation_id = GNUNET_htonll (occ->op_id);
+ queue_message (occ->client, &msg->header);
+ GNUNET_SCHEDULER_add_now (&occ_cleanup, occ);
+}
+
+
+/**
+ * Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to
+ * peer 1.
+ *
+ * @param cls the OverlayConnectContext
+ * @param tc the TaskContext from scheduler
+ */
+static void
+send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct OverlayConnectContext *occ = cls;
+ char *other_peer_str;
+
+ occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ return;
+ GNUNET_assert (NULL != occ->hello);
+ other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
+ if (NULL != occ->peer2_controller)
+ {
+ struct GNUNET_TESTBED_RequestConnectMessage *msg;
+ uint16_t msize;
+ uint16_t hello_size;
+
+ LOG_DEBUG ("Offering HELLO of %s to %s via Remote Overlay Request\n",
+ GNUNET_i2s (&occ->peer_identity), other_peer_str);
+ hello_size = ntohs (occ->hello->size);
+ msize = sizeof (struct GNUNET_TESTBED_RequestConnectMessage) + hello_size;
+ msg = GNUNET_malloc (msize);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_REQUESTCONNECT);
+ msg->header.size = htons (msize);
+ msg->peer = htonl (occ->other_peer_id);
+ msg->operation_id = GNUNET_htonll (occ->op_id);
+ (void) memcpy (&msg->peer_identity, &occ->peer_identity,
+ sizeof (struct GNUNET_PeerIdentity));
+ memcpy (msg->hello, occ->hello, hello_size);
+ GNUNET_TESTBED_queue_message_ (occ->peer2_controller, &msg->header);
+ }
+ else
+ {
+ LOG_DEBUG ("Offering HELLO of %s to %s\n",
+ GNUNET_i2s (&occ->peer_identity), other_peer_str);
+ GNUNET_TRANSPORT_offer_hello (occ->p2th, occ->hello, NULL, NULL);
+ GNUNET_TRANSPORT_try_connect (occ->p2th, &occ->peer_identity);
+ occ->send_hello_task =
+ GNUNET_SCHEDULER_add_delayed
+ (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
+ 100 * (pow (2, occ->retries++))),
+ &send_hello, occ);
+ }
+ GNUNET_free (other_peer_str);
+}
+
+/**
+ * Test for checking whether HELLO message is empty
+ *
+ * @param cls empty flag to set
+ * @param address the HELLO
+ * @param expiration expiration of the HELLO
+ * @return
+ */
+static int
+test_address (void *cls, const struct GNUNET_HELLO_Address *address,
+ struct GNUNET_TIME_Absolute expiration)
+{
+ int *empty = cls;
+
+ *empty = GNUNET_NO;
+ return GNUNET_OK;
+}
+
+
+/**
+ * Function called whenever there is an update to the HELLO of peers in the
+ * OverlayConnectClosure. If we have a valid HELLO, we connect to the peer 2's
+ * transport and offer peer 1's HELLO and ask peer 2 to connect to peer 1
+ *
+ * @param cls closure
+ * @param hello our updated HELLO
+ */
+static void
+hello_update_cb (void *cls, const struct GNUNET_MessageHeader *hello)
+{
+ struct OverlayConnectContext *occ = cls;
+ int empty;
+ uint16_t msize;
+
+ msize = ntohs (hello->size);
+ empty = GNUNET_YES;
+ (void) GNUNET_HELLO_iterate_addresses ((const struct GNUNET_HELLO_Message *)
+ hello, GNUNET_NO, &test_address,
+ &empty);
+ if (GNUNET_YES == empty)
+ {
+ LOG_DEBUG ("HELLO of %s is empty\n", GNUNET_i2s (&occ->peer_identity));
+ return;
+ }
+ LOG_DEBUG ("Received HELLO of %s\n", GNUNET_i2s (&occ->peer_identity));
+ occ->hello = GNUNET_malloc (msize);
+ memcpy (occ->hello, hello, msize);
+ GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
+ occ->ghh = NULL;
+ GNUNET_TRANSPORT_disconnect (occ->p1th);
+ occ->p1th = NULL;
+ GNUNET_free_non_null (occ->emsg);
+ if (NULL == occ->peer2_controller)
+ {
+ occ->p2th =
+ GNUNET_TRANSPORT_connect (peer_list[occ->other_peer_id]->details.local.cfg,
+ &occ->other_peer_identity, NULL, NULL, NULL,
+ NULL);
+ if (NULL == occ->p2th)
+ {
+ GNUNET_asprintf (&occ->emsg, "Cannot connect to TRANSPORT of %s\n",
+ GNUNET_i2s (&occ->other_peer_identity));
+ GNUNET_SCHEDULER_cancel (occ->timeout_task);
+ occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
+ return;
+ }
+ }
+ occ->emsg = GNUNET_strdup ("Timeout while offering HELLO to other peer");
+ occ->send_hello_task = GNUNET_SCHEDULER_add_now (&send_hello, occ);
+}
+
+
+/**
+ * Function called after GNUNET_CORE_connect has succeeded (or failed
+ * for good). Note that the private key of the peer is intentionally
+ * not exposed here; if you need it, your process should try to read
+ * the private key file directly (which should work if you are
+ * authorized...).
+ *
+ * @param cls closure
+ * @param server handle to the server, NULL if we failed
+ * @param my_identity ID of this peer, NULL if we failed
+ */
+static void
+core_startup_cb (void *cls, struct GNUNET_CORE_Handle *server,
+ const struct GNUNET_PeerIdentity *my_identity)
+{
+ struct OverlayConnectContext *occ = cls;
+
+ GNUNET_free_non_null (occ->emsg);
+ occ->emsg = GNUNET_strdup ("Failed to connect to CORE\n");
+ if ((NULL == server) || (NULL == my_identity))
+ goto error_return;
+ GNUNET_free (occ->emsg);
+ occ->ch = server;
+ occ->emsg = NULL;
+ memcpy (&occ->peer_identity, my_identity,
+ sizeof (struct GNUNET_PeerIdentity));
+ occ->p1th =
+ GNUNET_TRANSPORT_connect (occ->peer->details.local.cfg,
+ &occ->peer_identity, NULL, NULL, NULL, NULL);
+ if (NULL == occ->p1th)
+ {
+ GNUNET_asprintf (&occ->emsg, "Cannot connect to TRANSPORT of peers %4s",
+ GNUNET_i2s (&occ->peer_identity));
+ goto error_return;
+ }
+ LOG_DEBUG ("Acquiring HELLO of peer %s\n", GNUNET_i2s (&occ->peer_identity));
+ occ->emsg = GNUNET_strdup ("Timeout while acquiring HELLO message");
+ occ->ghh = GNUNET_TRANSPORT_get_hello (occ->p1th, &hello_update_cb, occ);
+ return;
+
+ error_return:
+ GNUNET_SCHEDULER_cancel (occ->timeout_task);
+ occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
+ return;
+}
+
+
+/**
+ * Callback to be called when forwarded get peer config operation as part of
+ * overlay connect is successfull. Connection to Peer 1's core is made and is
+ * checked for new connection from peer 2
+ *
+ * @param cls ForwardedOperationContext
+ * @param msg the peer create success message
+ */
+static void
+overlay_connect_get_config (void *cls, const struct GNUNET_MessageHeader *msg)
+{
+ struct OverlayConnectContext *occ = cls;
+ const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *cmsg;
+ const struct GNUNET_CORE_MessageHandler no_handlers[] = {
+ {NULL, 0, 0}
+ };
+
+ occ->opc = NULL;
+ if (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG != ntohs (msg->type))
+ goto error_return;
+ cmsg = (const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *)
+ msg;
+ memcpy (&occ->other_peer_identity, &cmsg->peer_identity,
+ sizeof (struct GNUNET_PeerIdentity));
+ GNUNET_free_non_null (occ->emsg);
+ occ->emsg = GNUNET_strdup ("Timeout while connecting to CORE");
+ occ->ch =
+ GNUNET_CORE_connect (occ->peer->details.local.cfg, occ, &core_startup_cb,
+ &overlay_connect_notify, NULL, NULL, GNUNET_NO, NULL,
+ GNUNET_NO, no_handlers);
+ if (NULL == occ->ch)
+ goto error_return;
+ return;
+
+ error_return:
+ GNUNET_SCHEDULER_cancel (occ->timeout_task);
+ occ->timeout_task =
+ GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
+}
+
+
+/**
+ * Callback to be called when forwarded overlay connection operation has a reply
+ * from the sub-controller successfull. We have to relay the reply msg back to
+ * the client
+ *
+ * @param cls ForwardedOperationContext
+ * @param msg the peer create success message
+ */
+static void
+forwarded_overlay_connect_listener (void *cls,
+ const struct GNUNET_MessageHeader *msg)
+{
+ struct ForwardedOperationContext *fopc = cls;
+ struct ForwardedOverlayConnectContext *focc;
+ struct GNUNET_TESTBED_NeedControllerConfig *rmsg;
+ struct Slave *slave;
+ uint32_t host_id;
+
+ if (GNUNET_MESSAGE_TYPE_TESTBED_NEEDCONTROLLERCONFIG != ntohs (msg->type))
+ {
+ forwarded_operation_reply_relay (cls, msg);
+ return;
+ }
+ rmsg = (struct GNUNET_TESTBED_NeedControllerConfig *) msg;
+ host_id = ntohl (rmsg->controller_host_id);
+ if ((host_id >= slave_list_size) || (NULL == slave_list[host_id]))
+ {
+ /* We too do not have the requested controllers configuration; escalate it
+ to our boss */
+ forwarded_operation_reply_relay (cls, msg);
+ return;
+ }
+ slave = slave_list[host_id];
+ GNUNET_assert (NULL != slave->cfg);
+ //GNUNET_TESTBED_controller_link_with_opid (
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_overlay_connect (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_OverlayConnectMessage *msg;
+ struct OverlayConnectContext *occ;
+ const struct GNUNET_CORE_MessageHandler no_handlers[] = {
+ {NULL, 0, 0}
+ };
+ struct Peer *peer;
+ uint64_t operation_id;
+ uint32_t p1;
+ uint32_t p2;
+
+ msg = (const struct GNUNET_TESTBED_OverlayConnectMessage *) message;
+ p1 = ntohl (msg->peer1);
+ p2 = ntohl (msg->peer2);
+ GNUNET_assert (p1 < peer_list_size);
+ GNUNET_assert (NULL != peer_list[p1]);
+ peer = peer_list[p1];
+ operation_id = GNUNET_ntohll (msg->operation_id);
+ if (GNUNET_YES == peer->is_remote)
+ {
+ struct ForwardedOperationContext *fopc;
+
+ LOG_DEBUG ("Forwarding overlay connect\n");
+ fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
+ GNUNET_SERVER_client_keep (client);
+ fopc->client = client;
+ fopc->operation_id = operation_id;
+ fopc->opc =
+ GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
+ operation_id, message,
+ &forwarded_operation_reply_relay,
+ fopc);
+ fopc->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
+ fopc);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ occ = GNUNET_malloc (sizeof (struct OverlayConnectContext));
+ GNUNET_SERVER_client_keep (client);
+ occ->client = client;
+ occ->peer_id = p1;
+ occ->other_peer_id = p2;
+ occ->peer = peer_list[p1];
+ occ->op_id = GNUNET_ntohll (msg->operation_id);
+ if ((p2 >= peer_list_size) || (NULL == peer_list[p2]))
+ {
+ uint32_t peer2_host_id;
+
+ peer2_host_id = ntohl (msg->peer2_host_id);
+ if ((peer2_host_id >= slave_list_size)
+ || (NULL ==slave_list[peer2_host_id]))
+ {
+ struct GNUNET_TESTBED_NeedControllerConfig *reply;
+
+ GNUNET_free (occ);
+ reply = GNUNET_malloc (sizeof (struct
+ GNUNET_TESTBED_NeedControllerConfig));
+ reply->header.size = htons (sizeof (struct
+ GNUNET_TESTBED_NeedControllerConfig));
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_NEEDCONTROLLERCONFIG);
+ reply->controller_host_id = msg->peer2_host_id;
+ reply->operation_id = msg->operation_id;
+ queue_message (client, &reply->header);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ else
+ {
+ occ->peer2_controller = slave_list[peer2_host_id]->controller;
+ if (NULL == occ->peer2_controller)
+ {
+ GNUNET_break (0); /* What's going on? */
+ GNUNET_SERVER_client_drop (client);
+ GNUNET_free (occ);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ }
+ }
+ else
+ {
+ if (GNUNET_YES == peer_list[occ->other_peer_id]->is_remote)
+ occ->peer2_controller = peer_list[occ->other_peer_id]->details.remote.controller;
+ }
+ /* Get the identity of the second peer */
+ if (NULL != occ->peer2_controller)
+ {
+ struct GNUNET_TESTBED_PeerGetConfigurationMessage cmsg;
+
+ cmsg.header.size =
+ htons (sizeof (struct GNUNET_TESTBED_PeerGetConfigurationMessage));
+ cmsg.header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG);
+ cmsg.peer_id = msg->peer2;
+ cmsg.operation_id = msg->operation_id;
+ occ->opc =
+ GNUNET_TESTBED_forward_operation_msg_ (occ->peer2_controller,
+ occ->op_id, &cmsg.header,
+ &overlay_connect_get_config,
+ occ);
+ occ->emsg =
+ GNUNET_strdup ("Timeout while getting peer identity of peer B\n");
+ occ->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 30),
+ &timeout_overlay_connect, occ);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ GNUNET_TESTING_peer_get_identity (peer_list[occ->other_peer_id]->details.local.peer,
+ &occ->other_peer_identity);
+ /* Connect to the core of 1st peer and wait for the 2nd peer to connect */
+ occ->emsg = GNUNET_strdup ("Timeout while connecting to CORE");
+ occ->ch =
+ GNUNET_CORE_connect (occ->peer->details.local.cfg, occ, &core_startup_cb,
+ &overlay_connect_notify, NULL, NULL, GNUNET_NO, NULL,
+ GNUNET_NO, no_handlers);
+ if (NULL == occ->ch)
+ occ->timeout_task =
+ GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
+ else
+ occ->timeout_task =
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 30),
+ &timeout_overlay_connect, occ);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Function to cleanup RequestOverlayConnectContext and any associated tasks
+ * with it
+ *
+ * @param rocc the RequestOverlayConnectContext
+ */
+static void
+cleanup_rocc (struct RequestOverlayConnectContext *rocc)
+{
+ if (GNUNET_SCHEDULER_NO_TASK != rocc->attempt_connect_task_id)
+ GNUNET_SCHEDULER_cancel (rocc->attempt_connect_task_id);
+ if (GNUNET_SCHEDULER_NO_TASK != rocc->timeout_rocc_task_id)
+ GNUNET_SCHEDULER_cancel (rocc->timeout_rocc_task_id);
+ GNUNET_TRANSPORT_disconnect (rocc->th);
+ GNUNET_free_non_null (rocc->hello);
+ GNUNET_free (rocc);
+}
+
+
+/**
+ * Task to timeout rocc and cleanit up
+ *
+ * @param cls the RequestOverlayConnectContext
+ * @param tc the TaskContext from scheduler
+ */
+static void
+timeout_rocc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct RequestOverlayConnectContext *rocc = cls;
+
+ rocc->timeout_rocc_task_id = GNUNET_SCHEDULER_NO_TASK;
+ cleanup_rocc (rocc);
+}
+
+
+/**
+ * Function called to notify transport users that another
+ * peer connected to us.
+ *
+ * @param cls closure
+ * @param new_peer the peer that connected
+ * @param ats performance data
+ * @param ats_count number of entries in ats (excluding 0-termination)
+ */
+static void
+transport_connect_notify (void *cls, const struct GNUNET_PeerIdentity *new_peer,
+ const struct GNUNET_ATS_Information * ats,
+ uint32_t ats_count)
+{
+ struct RequestOverlayConnectContext *rocc = cls;
+
+ LOG_DEBUG ("Request Overlay connect notify\n");
+ if (0 != memcmp (new_peer, &rocc->a_id, sizeof (struct GNUNET_PeerIdentity)))
+ return;
+ LOG_DEBUG ("Peer %4s connected\n", GNUNET_i2s (&rocc->a_id));
+ cleanup_rocc (rocc);
+}
+
+
+/**
+ * Task to offer the HELLO message to the peer and ask it to connect to the peer
+ * whose identity is in RequestOverlayConnectContext
+ *
+ * @param cls the RequestOverlayConnectContext
+ * @param tc the TaskContext from scheduler
+ */
+static void
+attempt_connect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct RequestOverlayConnectContext *rocc = cls;
+
+ rocc->attempt_connect_task_id = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_TRANSPORT_offer_hello (rocc->th, rocc->hello, NULL, NULL);
+ GNUNET_TRANSPORT_try_connect (rocc->th, &rocc->a_id);
+ rocc->attempt_connect_task_id =
+ GNUNET_SCHEDULER_add_delayed
+ (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
+ 100 * (pow (2, rocc->retries++))),
+ &attempt_connect_task, rocc);
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_REQUESTCONNECT messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_overlay_request_connect (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ const struct GNUNET_TESTBED_RequestConnectMessage *msg;
+ struct RequestOverlayConnectContext *rocc;
+ struct Peer *peer;
+ uint32_t peer_id;
+ uint16_t msize;
+ uint16_t hsize;
+
+ msize = ntohs (message->size);
+ if (sizeof (struct GNUNET_TESTBED_RequestConnectMessage) >= msize)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ msg = (const struct GNUNET_TESTBED_RequestConnectMessage *) message;
+ if ((NULL == msg->hello) ||
+ (GNUNET_MESSAGE_TYPE_HELLO != ntohs (msg->hello->type)))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ hsize = ntohs (msg->hello->size);
+ if ((sizeof (struct GNUNET_TESTBED_RequestConnectMessage) + hsize) != msize)
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ peer_id = ntohl (msg->peer);
+ if ((peer_id >= peer_list_size) || (NULL == (peer = peer_list[peer_id])))
+ {
+ GNUNET_break_op (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ if (GNUNET_YES == peer->is_remote)
+ {
+ struct GNUNET_MessageHeader *msg2;
+
+ msg2 = GNUNET_malloc (msize);
+ (void) memcpy (msg2, message, msize);
+ GNUNET_TESTBED_queue_message_ (peer->details.remote.controller, msg2);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ rocc = GNUNET_malloc (sizeof (struct RequestOverlayConnectContext));
+ rocc->th = GNUNET_TRANSPORT_connect (peer->details.local.cfg, NULL, rocc,
+ NULL, &transport_connect_notify, NULL);
+ if (NULL == rocc->th)
+ {
+ GNUNET_break (0);
+ GNUNET_free (rocc);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ memcpy (&rocc->a_id, &msg->peer_identity,
+ sizeof (struct GNUNET_PeerIdentity));
+ rocc->hello = GNUNET_malloc (hsize);
+ memcpy (rocc->hello, msg->hello, hsize);
+ rocc->attempt_connect_task_id =
+ GNUNET_SCHEDULER_add_now (&attempt_connect_task, rocc);
+ rocc->timeout_rocc_task_id =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &timeout_rocc_task, rocc);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETSLAVECONFIG messages
+ *
+ * @param cls NULL
+ * @param client identification of the client
+ * @param message the actual message
+ */
+static void
+handle_slave_get_config (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct GNUNET_TESTBED_SlaveGetConfigurationMessage *msg;
+ struct Slave *slave;
+ struct GNUNET_TESTBED_SlaveConfiguration *reply;
+ char *config;
+ char *xconfig;
+ size_t config_size;
+ size_t xconfig_size;
+ size_t reply_size;
+ uint64_t op_id;
+ uint32_t slave_id;
+
+ msg = (struct GNUNET_TESTBED_SlaveGetConfigurationMessage *) message;
+ slave_id = ntohl (msg->slave_id);
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if ((slave_list_size <= slave_id) || (NULL == slave_list[slave_id]))
+ {
+ send_operation_fail_msg (client, op_id, "Slave not found");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ slave = slave_list[slave_id];
+ if (NULL == slave->cfg)
+ {
+ send_operation_fail_msg (client, op_id,
+ "Configuration not found (slave not started by me)");
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ return;
+ }
+ config = GNUNET_CONFIGURATION_serialize (slave->cfg, &config_size);
+ xconfig_size = GNUNET_TESTBED_compress_config_ (config, config_size,
+ &xconfig);
+ GNUNET_free (config);
+ reply_size = xconfig_size + sizeof (struct GNUNET_TESTBED_SlaveConfiguration);
+ GNUNET_break (reply_size <= UINT16_MAX);
+ GNUNET_break (config_size <= UINT16_MAX);
+ reply = GNUNET_realloc (xconfig, reply_size);
+ (void) memmove (&reply[1], reply, xconfig_size);
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG);
+ reply->header.size = htons ((uint16_t) reply_size);
+ reply->slave_id = msg->slave_id;
+ reply->operation_id = msg->operation_id;
+ reply->config_size = htons ((uint16_t) config_size);
+ queue_message (client, &reply->header);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Iterator over hash map entries.
+ *
+ * @param cls closure
+ * @param key current key code
+ * @param value value in the hash map
+ * @return GNUNET_YES if we should continue to
+ * iterate,
+ * GNUNET_NO if not.
+ */
+static int
+ss_map_free_iterator (void *cls, const struct GNUNET_HashCode *key, void *value)
+{
+ struct SharedService *ss = value;
+
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_remove (ss_map, key, value));
+ GNUNET_free (ss->name);
+ GNUNET_free (ss);
+ return GNUNET_YES;
+}
+
+
+/**
+ * Task to clean up and shutdown nicely
+ *
+ * @param cls NULL
+ * @param tc the TaskContext from scheduler
+ */
+static void
+shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct LCFContextQueue *lcfq;
+ uint32_t id;
+
+ shutdown_task_id = GNUNET_SCHEDULER_NO_TASK;
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Shutting down testbed service\n");
+ (void) GNUNET_CONTAINER_multihashmap_iterate (ss_map, &ss_map_free_iterator,
+ NULL);
+ GNUNET_CONTAINER_multihashmap_destroy (ss_map);
+ if (NULL != lcfq_head)
+ {
+ if (GNUNET_SCHEDULER_NO_TASK != lcf_proc_task_id)
+ {
+ GNUNET_SCHEDULER_cancel (lcf_proc_task_id);
+ lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
+ }
+ if (NULL != lcfq_head->lcf->rhandle)
+ GNUNET_TESTBED_cancel_registration (lcfq_head->lcf->rhandle);
+ }
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
+ for (lcfq = lcfq_head; NULL != lcfq; lcfq = lcfq_head)
+ {
+ GNUNET_free (lcfq->lcf->msg);
+ GNUNET_free (lcfq->lcf);
+ GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
+ GNUNET_free (lcfq);
+ }
+ /* Clear peer list */
+ for (id = 0; id < peer_list_size; id++)
+ if (NULL != peer_list[id])
+ {
+ if (GNUNET_NO == peer_list[id]->is_remote)
+ {
+ if (GNUNET_YES == peer_list[id]->details.local.is_running)
+ GNUNET_TESTING_peer_stop (peer_list[id]->details.local.peer);
+ GNUNET_TESTING_peer_destroy (peer_list[id]->details.local.peer);
+ GNUNET_CONFIGURATION_destroy (peer_list[id]->details.local.cfg);
+ }
+ GNUNET_free (peer_list[id]);
+ }
+ GNUNET_free_non_null (peer_list);
+ /* Clear host list */
+ for (id = 0; id < host_list_size; id++)
+ if (NULL != host_list[id])
+ GNUNET_TESTBED_host_destroy (host_list[id]);
+ GNUNET_free_non_null (host_list);
+ /* Clear route list */
+ for (id = 0; id < route_list_size; id++)
+ if (NULL != route_list[id])
+ GNUNET_free (route_list[id]);
+ GNUNET_free_non_null (route_list);
+ /* Clear slave_list */
+ for (id = 0; id < slave_list_size; id++)
+ if (NULL != slave_list[id])
+ {
+ if (NULL != slave_list[id]->cfg)
+ GNUNET_CONFIGURATION_destroy (slave_list[id]->cfg);
+ if (NULL != slave_list[id]->controller)
+ GNUNET_TESTBED_controller_disconnect (slave_list[id]->controller);
+ if (NULL != slave_list[id]->controller_proc)
+ GNUNET_TESTBED_controller_stop (slave_list[id]->controller_proc);
+ GNUNET_free (slave_list[id]);
+ }
+ GNUNET_free_non_null (slave_list);
+ if (NULL != master_context)
+ {
+ GNUNET_free_non_null (master_context->master_ip);
+ if (NULL != master_context->system)
+ GNUNET_TESTING_system_destroy (master_context->system, GNUNET_YES);
+ GNUNET_free (master_context);
+ master_context = NULL;
+ }
+ GNUNET_free_non_null (hostname);
+}
+
+
+/**
+ * Callback for client disconnect
+ *
+ * @param cls NULL
+ * @param client the client which has disconnected
+ */
+static void
+client_disconnect_cb (void *cls, struct GNUNET_SERVER_Client *client)
+{
+ if (NULL == master_context)
+ return;
+ if (client == master_context->client)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Master client disconnected\n");
+ GNUNET_SERVER_client_drop (client);
+ /* should not be needed as we're terminated by failure to read
+ * from stdin, but if stdin fails for some reason, this shouldn't
+ * hurt for now --- might need to revise this later if we ever
+ * decide that master connections might be temporarily down
+ * for some reason */
+ //GNUNET_SCHEDULER_shutdown ();
+ }
+}
+
+
+/**
+ * Testbed setup
+ *
+ * @param cls closure
+ * @param server the initialized server
+ * @param cfg configuration to use
+ */
+static void
+testbed_run (void *cls, struct GNUNET_SERVER_Handle *server,
+ const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+ static const struct GNUNET_SERVER_MessageHandler message_handlers[] = {
+ {&handle_init, NULL, GNUNET_MESSAGE_TYPE_TESTBED_INIT, 0},
+ {&handle_add_host, NULL, GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST, 0},
+ {&handle_configure_shared_service, NULL,
+ GNUNET_MESSAGE_TYPE_TESTBED_SERVICESHARE, 0},
+ {&handle_link_controllers, NULL,
+ GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS, 0},
+ {&handle_peer_create, NULL, GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER, 0},
+ {&handle_peer_destroy, NULL, GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER,
+ sizeof (struct GNUNET_TESTBED_PeerDestroyMessage)},
+ {&handle_peer_start, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STARTPEER,
+ sizeof (struct GNUNET_TESTBED_PeerStartMessage)},
+ {&handle_peer_stop, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STOPPEER,
+ sizeof (struct GNUNET_TESTBED_PeerStopMessage)},
+ {&handle_peer_get_config, NULL, GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG,
+ sizeof (struct GNUNET_TESTBED_PeerGetConfigurationMessage)},
+ {&handle_overlay_connect, NULL, GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT,
+ sizeof (struct GNUNET_TESTBED_OverlayConnectMessage)},
+ {&handle_overlay_request_connect, NULL, GNUNET_MESSAGE_TYPE_TESTBED_REQUESTCONNECT,
+ 0},
+ {handle_slave_get_config, NULL, GNUNET_MESSAGE_TYPE_TESTBED_GETSLAVECONFIG,
+ sizeof (struct GNUNET_TESTBED_SlaveGetConfigurationMessage)},
+ {NULL}
+ };
+
+ GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string
+ (cfg, "testbed", "HOSTNAME", &hostname));
+ GNUNET_SERVER_add_handlers (server, message_handlers);
+ GNUNET_SERVER_disconnect_notify (server, &client_disconnect_cb, NULL);
+ ss_map = GNUNET_CONTAINER_multihashmap_create (5, GNUNET_NO);
+ shutdown_task_id =
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
+ &shutdown_task, NULL);
+ LOG_DEBUG ("Testbed startup complete\n");
+}
+
+
+/**
+ * The starting point of execution
+ */
+int
+main (int argc, char *const *argv)
+{
+ //sleep (15); /* Debugging */
+ return (GNUNET_OK ==
+ GNUNET_SERVICE_run (argc, argv, "testbed", GNUNET_SERVICE_OPTION_NONE,
+ &testbed_run, NULL)) ? 0 : 1;
+}
+
+/* end of gnunet-service-testbed.c */
diff --git a/src/testbed/testbed.h b/src/testbed/testbed.h
index ac8fed0a6..198f764b3 100644
--- a/src/testbed/testbed.h
+++ b/src/testbed/testbed.h
@@ -701,6 +701,30 @@ struct GNUNET_TESTBED_SlaveConfiguration
};
+
+/**
+ * Message sent from a controller to the testbed API seeking the configuration
+ * of the host whose id is contained in the message.
+ */
+struct GNUNET_TESTBED_NeedControllerConfig
+{
+ /**
+ * Type is GNUNET_MESSAGE_TYPE_TESTBED_NEEDCONTROLLERCONFIG
+ */
+ struct GNUNET_MessageHeader header;
+
+ /**
+ * The id of the controller host
+ */
+ uint32_t controller_host_id GNUNET_PACKED;
+
+ /**
+ * Operation ID
+ */
+ uint64_t operation_id GNUNET_PACKED;
+
+};
+
GNUNET_NETWORK_STRUCT_END
#endif
diff --git a/src/testbed/testbed_api.c b/src/testbed/testbed_api.c
index 1d99c7e3f..35956f852 100644
--- a/src/testbed/testbed_api.c
+++ b/src/testbed/testbed_api.c
@@ -859,6 +859,46 @@ handle_slave_config (struct GNUNET_TESTBED_Controller *c,
/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_NEEDCONTROLLERCONFIG message from
+ * controller (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_need_controller_config (struct GNUNET_TESTBED_Controller *c,
+ const struct GNUNET_TESTBED_NeedControllerConfig * msg)
+{
+ struct OperationContext *opc;
+ struct OverlayConnectData *oc_data;
+ uint64_t op_id;
+
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation not found\n");
+ return GNUNET_YES;
+ }
+ if (OP_FORWARDED == opc->type)
+ {
+ handle_forwarded_operation_msg (c, opc,
+ (const struct GNUNET_MessageHeader *) msg);
+ return GNUNET_YES;
+ }
+ oc_data = opc->data;
+ /* FIXME: Should spawn operations to:
+ 1. Acquire configuration of peer2's controller,
+ 2. link peer1's controller to peer2's controller
+ 3. ask them to attempt overlay connect on peer1 and peer2 again */
+ GNUNET_break (NULL == oc_data);
+ GNUNET_break (0);
+ return GNUNET_YES;
+}
+
+
+/**
* Handler for messages from controller (testbed service)
*
* @param cls the controller handler
@@ -952,6 +992,14 @@ message_handler (void *cls, const struct GNUNET_MessageHeader *msg)
handle_slave_config (c, (const struct
GNUNET_TESTBED_SlaveConfiguration *) msg);
break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_NEEDCONTROLLERCONFIG:
+ GNUNET_assert (msize == sizeof (struct
+ GNUNET_TESTBED_NeedControllerConfig));
+ status =
+ handle_need_controller_config (c, (const struct
+ GNUNET_TESTBED_NeedControllerConfig
+ *) msg);
+ break;
default:
GNUNET_assert (0);
}
diff --git a/src/testbed/testbed_api.c.new b/src/testbed/testbed_api.c.new
new file mode 100644
index 000000000..0bc6830ec
--- /dev/null
+++ b/src/testbed/testbed_api.c.new
@@ -0,0 +1,2222 @@
+/*
+ This file is part of GNUnet
+ (C) 2008--2012 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 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 testbed/testbed_api.c
+ * @brief API for accessing the GNUnet testing service.
+ * This library is supposed to make it easier to write
+ * testcases and script large-scale benchmarks.
+ * @author Christian Grothoff
+ * @author Sree Harsha Totakura
+ */
+
+
+#include "platform.h"
+#include "gnunet_testbed_service.h"
+#include "gnunet_core_service.h"
+#include "gnunet_constants.h"
+#include "gnunet_transport_service.h"
+#include "gnunet_hello_lib.h"
+#include <zlib.h>
+
+#include "testbed.h"
+#include "testbed_api.h"
+#include "testbed_api_hosts.h"
+#include "testbed_api_peers.h"
+#include "testbed_api_operations.h"
+
+/**
+ * Generic logging shorthand
+ */
+#define LOG(kind, ...) \
+ GNUNET_log_from (kind, "testbed-api", __VA_ARGS__);
+
+/**
+ * Debug logging
+ */
+#define LOG_DEBUG(...) \
+ LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__);
+
+/**
+ * Relative time seconds shorthand
+ */
+#define TIME_REL_SECS(sec) \
+ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, sec)
+
+
+/**
+ * Default server message sending retry timeout
+ */
+#define TIMEOUT_REL TIME_REL_SECS(1)
+
+
+/**
+ * Testbed Helper binary name
+ */
+#define HELPER_TESTBED_BINARY "gnunet-helper-testbed"
+#define HELPER_TESTBED_BINARY_SSH ". ~/.bashrc; gnunet-helper-testbed"
+
+
+/**
+ * Handle for controller process
+ */
+struct GNUNET_TESTBED_ControllerProc
+{
+ /**
+ * The process handle
+ */
+ struct GNUNET_HELPER_Handle *helper;
+
+ /**
+ * The host where the helper is run
+ */
+ struct GNUNET_TESTBED_Host *host;
+
+ /**
+ * The controller error callback
+ */
+ GNUNET_TESTBED_ControllerStatusCallback cb;
+
+ /**
+ * The closure for the above callback
+ */
+ void *cls;
+
+ /**
+ * The send handle for the helper
+ */
+ struct GNUNET_HELPER_SendHandle *shandle;
+
+ /**
+ * The message corresponding to send handle
+ */
+ struct GNUNET_MessageHeader *msg;
+
+ /**
+ * The port number for ssh; used for helpers starting ssh
+ */
+ char *port;
+
+ /**
+ * The ssh destination string; used for helpers starting ssh
+ */
+ char *dst;
+
+ /**
+ * The configuration of the running testbed service
+ */
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+
+};
+
+
+/**
+ * The message queue for sending messages to the controller service
+ */
+struct MessageQueue
+{
+ /**
+ * The message to be sent
+ */
+ struct GNUNET_MessageHeader *msg;
+
+ /**
+ * next pointer for DLL
+ */
+ struct MessageQueue *next;
+
+ /**
+ * prev pointer for DLL
+ */
+ struct MessageQueue *prev;
+};
+
+
+/**
+ * Structure for a controller link
+ */
+struct ControllerLink
+{
+ /**
+ * The next ptr for DLL
+ */
+ struct ControllerLink *next;
+
+ /**
+ * The prev ptr for DLL
+ */
+ struct ControllerLink *prev;
+
+ /**
+ * The host which will be referred in the peer start request. This is the
+ * host where the peer should be started
+ */
+ struct GNUNET_TESTBED_Host *delegated_host;
+
+ /**
+ * The host which will contacted to delegate the peer start request
+ */
+ struct GNUNET_TESTBED_Host *slave_host;
+
+ /**
+ * The configuration to be used to connect to slave host
+ */
+ const struct GNUNET_CONFIGURATION_Handle *slave_cfg;
+
+ /**
+ * GNUNET_YES if the slave should be started (and stopped) by us; GNUNET_NO
+ * if we are just allowed to use the slave via TCP/IP
+ */
+ int is_subordinate;
+};
+
+
+/**
+ * handle for host registration
+ */
+struct GNUNET_TESTBED_HostRegistrationHandle
+{
+ /**
+ * The host being registered
+ */
+ struct GNUNET_TESTBED_Host *host;
+
+ /**
+ * The controller at which this host is being registered
+ */
+ struct GNUNET_TESTBED_Controller *c;
+
+ /**
+ * The Registartion completion callback
+ */
+ GNUNET_TESTBED_HostRegistrationCompletion cc;
+
+ /**
+ * The closure for above callback
+ */
+ void *cc_cls;
+};
+
+
+/**
+ * Context data for forwarded Operation
+ */
+struct ForwardedOperationData
+{
+
+ /**
+ * The callback to call when reply is available
+ */
+ GNUNET_CLIENT_MessageHandler cc;
+
+ /**
+ * The closure for the above callback
+ */
+ void *cc_cls;
+
+};
+
+
+/**
+ * Context data for get slave config operations
+ */
+struct GetSlaveConfigData
+{
+ /**
+ * The operation closure
+ */
+ void *op_cls;
+
+ /**
+ * The id of the slave controller
+ */
+ uint32_t slave_id;
+
+};
+
+
+/**
+ * Context data for controller link operations
+ */
+struct ControllerLinkData
+{
+ /**
+ * The controller link message
+ */
+ struct GNUNET_TESTBED_ControllerLinkMessage *msg;
+
+ /**
+ * The operation closure
+ */
+ void *op_cls;
+
+};
+
+
+/**
+ * Returns the operation context with the given id if found in the Operation
+ * context queues of the controller
+ *
+ * @param c the controller whose queues are searched
+ * @param id the id which has to be checked
+ * @return the matching operation context; NULL if no match found
+ */
+static struct OperationContext *
+find_opc (const struct GNUNET_TESTBED_Controller *c, const uint64_t id)
+{
+ struct OperationContext *opc;
+
+ for (opc = c->ocq_head; NULL != opc; opc = opc->next)
+ {
+ if (id == opc->id)
+ return opc;
+ }
+ return NULL;
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM message from
+ * controller (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_addhostconfirm (struct GNUNET_TESTBED_Controller *c,
+ const struct GNUNET_TESTBED_HostConfirmedMessage *msg)
+{
+ struct GNUNET_TESTBED_HostRegistrationHandle *rh;
+ char *emsg;
+ uint16_t msg_size;
+
+ rh = c->rh;
+ if (NULL == rh)
+ {
+ return GNUNET_OK;
+ }
+ if (GNUNET_TESTBED_host_get_id_ (rh->host) != ntohl (msg->host_id))
+ {
+ LOG_DEBUG ("Mismatch in host id's %u, %u of host confirm msg\n",
+ GNUNET_TESTBED_host_get_id_ (rh->host), ntohl (msg->host_id));
+ return GNUNET_OK;
+ }
+ c->rh = NULL;
+ msg_size = ntohs (msg->header.size);
+ if (sizeof (struct GNUNET_TESTBED_HostConfirmedMessage) == msg_size)
+ {
+ LOG_DEBUG ("Host %u successfully registered\n", ntohl (msg->host_id));
+ GNUNET_TESTBED_mark_host_registered_at_ (rh->host, c);
+ rh->cc (rh->cc_cls, NULL);
+ GNUNET_free (rh);
+ return GNUNET_OK;
+ }
+ /* We have an error message */
+ emsg = (char *) &msg[1];
+ if ('\0' !=
+ emsg[msg_size - sizeof (struct GNUNET_TESTBED_HostConfirmedMessage)])
+ {
+ GNUNET_break (0);
+ GNUNET_free (rh);
+ return GNUNET_NO;
+ }
+ LOG (GNUNET_ERROR_TYPE_ERROR, _("Adding host %u failed with error: %s\n"),
+ ntohl (msg->host_id), emsg);
+ rh->cc (rh->cc_cls, emsg);
+ GNUNET_free (rh);
+ return GNUNET_OK;
+}
+
+
+/**
+ * Handler for forwarded operations
+ *
+ * @param c the controller handle
+ * @param opc the opearation context
+ * @param msg the message
+ */
+static void
+handle_forwarded_operation_msg (struct GNUNET_TESTBED_Controller *c,
+ struct OperationContext *opc,
+ const struct GNUNET_MessageHeader *msg)
+{
+ struct ForwardedOperationData *fo_data;
+
+ fo_data = opc->data;
+ if (NULL != fo_data->cc)
+ fo_data->cc (fo_data->cc_cls, msg);
+ GNUNET_CONTAINER_DLL_remove (c->ocq_head, c->ocq_tail, opc);
+ GNUNET_free (fo_data);
+ GNUNET_free (opc);
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM message from
+ * controller (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_opsuccess (struct GNUNET_TESTBED_Controller *c,
+ const struct
+ GNUNET_TESTBED_GenericOperationSuccessEventMessage *msg)
+{
+ struct OperationContext *opc;
+ struct GNUNET_TESTBED_EventInformation event;
+ uint64_t op_id;
+
+ op_id = GNUNET_ntohll (msg->operation_id);
+ LOG_DEBUG ("Operation %ul successful\n", op_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation not found\n");
+ return GNUNET_YES;
+ }
+ event.type = GNUNET_TESTBED_ET_OPERATION_FINISHED;
+ event.details.operation_finished.operation = opc->op;
+ event.details.operation_finished.op_cls = NULL;
+ event.details.operation_finished.emsg = NULL;
+ event.details.operation_finished.generic = NULL;
+ switch (opc->type)
+ {
+ case OP_FORWARDED:
+ {
+ handle_forwarded_operation_msg
+ (c, opc, (const struct GNUNET_MessageHeader *) msg);
+ return GNUNET_YES;
+ }
+ break;
+ case OP_PEER_DESTROY:
+ {
+ struct GNUNET_TESTBED_Peer *peer;
+
+ peer = opc->data;
+ GNUNET_free (peer);
+ opc->data = NULL;
+ //PEERDESTROYDATA
+ }
+ break;
+ case OP_LINK_CONTROLLERS:
+ {
+ struct ControllerLinkData *data;
+
+ data = opc->data;
+ GNUNET_assert (NULL != data);
+ event.details.operation_finished.op_cls = data->op_cls;
+ GNUNET_free (data);
+ opc->data = NULL;
+ }
+ break;
+ default:
+ GNUNET_assert (0);
+ }
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ opc->state = OPC_STATE_FINISHED;
+ if (0 != (c->event_mask & (1L << GNUNET_TESTBED_ET_OPERATION_FINISHED)))
+ {
+ if (NULL != c->cc)
+ c->cc (c->cc_cls, &event);
+ }
+ return GNUNET_YES;
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS message from
+ * controller (testbed service)
+ *
+ * @param c the controller handle
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_peer_create_success (struct GNUNET_TESTBED_Controller *c,
+ const struct
+ GNUNET_TESTBED_PeerCreateSuccessEventMessage *msg)
+{
+ struct OperationContext *opc;
+ struct PeerCreateData *data;
+ struct GNUNET_TESTBED_Peer *peer;
+ GNUNET_TESTBED_PeerCreateCallback cb;
+ void *cls;
+ uint64_t op_id;
+
+ GNUNET_assert (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage) ==
+ ntohs (msg->header.size));
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation context for PeerCreateSuccessEvent not found\n");
+ return GNUNET_YES;
+ }
+ if (OP_FORWARDED == opc->type)
+ {
+ handle_forwarded_operation_msg (c, opc,
+ (const struct GNUNET_MessageHeader *) msg);
+ return GNUNET_YES;
+ }
+ GNUNET_assert (OP_PEER_CREATE == opc->type);
+ GNUNET_assert (NULL != opc->data);
+ data = opc->data;
+ GNUNET_assert (NULL != data->peer);
+ peer = data->peer;
+ GNUNET_assert (peer->unique_id == ntohl (msg->peer_id));
+ peer->state = PS_CREATED;
+ cb = data->cb;
+ cls = data->cls;
+ GNUNET_free (opc->data);
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ opc->state = OPC_STATE_FINISHED;
+ if (NULL != cb)
+ cb (cls, peer, NULL);
+ return GNUNET_YES;
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT message from
+ * controller (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_peer_event (struct GNUNET_TESTBED_Controller *c,
+ const struct GNUNET_TESTBED_PeerEventMessage *msg)
+{
+ struct OperationContext *opc;
+ struct GNUNET_TESTBED_Peer *peer;
+ struct PeerEventData *data;
+ GNUNET_TESTBED_PeerChurnCallback pcc;
+ void *pcc_cls;
+ struct GNUNET_TESTBED_EventInformation event;
+ uint64_t op_id;
+
+ GNUNET_assert (sizeof (struct GNUNET_TESTBED_PeerEventMessage) ==
+ ntohs (msg->header.size));
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation not found\n");
+ return GNUNET_YES;
+ }
+ if (OP_FORWARDED == opc->type)
+ {
+ handle_forwarded_operation_msg (c, opc,
+ (const struct GNUNET_MessageHeader *) msg);
+ return GNUNET_YES;
+ }
+ GNUNET_assert ((OP_PEER_START == opc->type) || (OP_PEER_STOP == opc->type));
+ data = opc->data;
+ GNUNET_assert (NULL != data);
+ peer = data->peer;
+ GNUNET_assert (NULL != peer);
+ event.type = (enum GNUNET_TESTBED_EventType) ntohl (msg->event_type);
+ switch (event.type)
+ {
+ case GNUNET_TESTBED_ET_PEER_START:
+ peer->state = PS_STARTED;
+ event.details.peer_start.host = peer->host;
+ event.details.peer_start.peer = peer;
+ break;
+ case GNUNET_TESTBED_ET_PEER_STOP:
+ peer->state = PS_STOPPED;
+ event.details.peer_stop.peer = peer;
+ break;
+ default:
+ GNUNET_assert (0); /* We should never reach this state */
+ }
+ pcc = data->pcc;
+ pcc_cls = data->pcc_cls;
+ GNUNET_free (data);
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ opc->state = OPC_STATE_FINISHED;
+ if (0 !=
+ ((GNUNET_TESTBED_ET_PEER_START | GNUNET_TESTBED_ET_PEER_STOP) &
+ c->event_mask))
+ {
+ if (NULL != c->cc)
+ c->cc (c->cc_cls, &event);
+ }
+ if (NULL != pcc)
+ pcc (pcc_cls, NULL);
+ return GNUNET_YES;
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT message from
+ * controller (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_peer_conevent (struct GNUNET_TESTBED_Controller *c,
+ const struct GNUNET_TESTBED_ConnectionEventMessage *msg)
+{
+ struct OperationContext *opc;
+ struct OverlayConnectData *data;
+ GNUNET_TESTBED_OperationCompletionCallback cb;
+ void *cb_cls;
+ struct GNUNET_TESTBED_EventInformation event;
+ uint64_t op_id;
+
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation not found\n");
+ return GNUNET_YES;
+ }
+ if (OP_FORWARDED == opc->type)
+ {
+ handle_forwarded_operation_msg (c, opc,
+ (const struct GNUNET_MessageHeader *) msg);
+ return GNUNET_YES;
+ }
+ GNUNET_assert (OP_OVERLAY_CONNECT == opc->type);
+ data = opc->data;
+ GNUNET_assert (NULL != data);
+ GNUNET_assert ((ntohl (msg->peer1) == data->p1->unique_id) &&
+ (ntohl (msg->peer2) == data->p2->unique_id));
+ event.type = (enum GNUNET_TESTBED_EventType) ntohl (msg->event_type);
+ switch (event.type)
+ {
+ case GNUNET_TESTBED_ET_CONNECT:
+ event.details.peer_connect.peer1 = data->p1;
+ event.details.peer_connect.peer2 = data->p2;
+ break;
+ case GNUNET_TESTBED_ET_DISCONNECT:
+ GNUNET_assert (0); /* FIXME: implement */
+ break;
+ default:
+ GNUNET_assert (0); /* Should never reach here */
+ break;
+ }
+ cb = data->cb;
+ cb_cls = data->cb_cls;
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ opc->state = OPC_STATE_FINISHED;
+ GNUNET_free (data);
+ if (0 !=
+ ((GNUNET_TESTBED_ET_CONNECT | GNUNET_TESTBED_ET_DISCONNECT) &
+ c->event_mask))
+ {
+ if (NULL != c->cc)
+ c->cc (c->cc_cls, &event);
+ }
+ if (NULL != cb)
+ cb (cb_cls, opc->op, NULL);
+ return GNUNET_YES;
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG message from
+ * controller (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_peer_config (struct GNUNET_TESTBED_Controller *c,
+ const struct
+ GNUNET_TESTBED_PeerConfigurationInformationMessage *msg)
+{
+ struct OperationContext *opc;
+ struct GNUNET_TESTBED_Peer *peer;
+ struct PeerInfoData *data;
+ struct GNUNET_TESTBED_PeerInformation *pinfo;
+ GNUNET_TESTBED_PeerInfoCallback cb;
+ void *cb_cls;
+ uint64_t op_id;
+
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation not found\n");
+ return GNUNET_YES;
+ }
+ if (OP_FORWARDED == opc->type)
+ {
+ handle_forwarded_operation_msg (c, opc,
+ (const struct GNUNET_MessageHeader *) msg);
+ return GNUNET_YES;
+ }
+ data = opc->data;
+ GNUNET_assert (NULL != data);
+ peer = data->peer;
+ GNUNET_assert (NULL != peer);
+ GNUNET_assert (ntohl (msg->peer_id) == peer->unique_id);
+ pinfo = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerInformation));
+ pinfo->pit = data->pit;
+ cb = data->cb;
+ cb_cls = data->cb_cls;
+ GNUNET_free (data);
+ opc->data = NULL;
+ switch (pinfo->pit)
+ {
+ case GNUNET_TESTBED_PIT_IDENTITY:
+ pinfo->result.id = GNUNET_malloc (sizeof (struct GNUNET_PeerIdentity));
+ (void) memcpy (pinfo->result.id, &msg->peer_identity,
+ sizeof (struct GNUNET_PeerIdentity));
+ break;
+ case GNUNET_TESTBED_PIT_CONFIGURATION:
+ pinfo->result.cfg = /* Freed in oprelease_peer_getinfo */
+ GNUNET_TESTBED_extract_config_ (&msg->header);
+ break;
+ case GNUNET_TESTBED_PIT_GENERIC:
+ GNUNET_assert (0); /* never reach here */
+ break;
+ }
+ opc->data = pinfo;
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ opc->state = OPC_STATE_FINISHED;
+ if (NULL != cb)
+ cb (cb_cls, opc->op, pinfo, NULL);
+ return GNUNET_YES;
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONFAILEVENT message from
+ * controller (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_op_fail_event (struct GNUNET_TESTBED_Controller *c,
+ const struct GNUNET_TESTBED_OperationFailureEventMessage
+ *msg)
+{
+ struct OperationContext *opc;
+ const char *emsg;
+ uint64_t op_id;
+ struct GNUNET_TESTBED_EventInformation event;
+
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation not found\n");
+ return GNUNET_YES;
+ }
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ if (OP_FORWARDED == opc->type)
+ {
+ handle_forwarded_operation_msg (c, opc,
+ (const struct GNUNET_MessageHeader *) msg);
+ return GNUNET_YES;
+ }
+ opc->state = OPC_STATE_FINISHED;
+ emsg = GNUNET_TESTBED_parse_error_string_ (msg);
+ if (NULL == emsg)
+ emsg = "Unknown error";
+ if (OP_PEER_INFO == opc->type)
+ {
+ struct PeerInfoData *data;
+ data = opc->data;
+ if (NULL != data->cb)
+ data->cb (data->cb_cls, opc->op, NULL, emsg);
+ GNUNET_free (data);
+ return GNUNET_YES; /* We do not call controller callback for peer info */
+ }
+ if ((0 != (GNUNET_TESTBED_ET_OPERATION_FINISHED & c->event_mask)) &&
+ (NULL != c->cc))
+ {
+ event.type = GNUNET_TESTBED_ET_OPERATION_FINISHED;
+ event.details.operation_finished.operation = opc->op;
+ event.details.operation_finished.op_cls = NULL;
+ event.details.operation_finished.emsg = emsg;
+ event.details.operation_finished.generic = NULL;
+ c->cc (c->cc_cls, &event);
+ }
+ switch (opc->type)
+ {
+ case OP_PEER_CREATE:
+ {
+ struct PeerCreateData *data;
+ data = opc->data;
+ GNUNET_free (data->peer);
+ if (NULL != data->cb)
+ data->cb (data->cls, NULL, emsg);
+ GNUNET_free (data);
+ }
+ break;
+ case OP_PEER_START:
+ case OP_PEER_STOP:
+ {
+ struct PeerEventData *data;
+ data = opc->data;
+ if (NULL != data->pcc)
+ data->pcc (data->pcc_cls, emsg);
+ GNUNET_free (data);
+ }
+ break;
+ case OP_PEER_DESTROY:
+ break;
+ case OP_PEER_INFO:
+ GNUNET_assert (0);
+ case OP_OVERLAY_CONNECT:
+ {
+ struct OverlayConnectData *data;
+ data = opc->data;
+ if (NULL != data->cb)
+ data->cb (data->cb_cls, opc->op, emsg);
+ GNUNET_free (data);
+ }
+ break;
+ case OP_FORWARDED:
+ GNUNET_assert (0);
+ case OP_LINK_CONTROLLERS: /* No secondary callback */
+ break;
+ default:
+ GNUNET_break (0);
+ }
+ return GNUNET_YES;
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG message from controller
+ * (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_slave_config (struct GNUNET_TESTBED_Controller *c,
+ const struct GNUNET_TESTBED_SlaveConfiguration * msg)
+{
+ struct OperationContext *opc;
+ void *op_cls;
+ uint64_t op_id;
+ struct GNUNET_TESTBED_EventInformation event;
+
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation not found\n");
+ return GNUNET_YES;
+ }
+ if (OP_GET_SLAVE_CONFIG != opc->type)
+ {
+ GNUNET_break (0);
+ return GNUNET_YES;
+ }
+ op_cls = ((struct GetSlaveConfigData *) opc->data)->op_cls;
+ GNUNET_free (opc->data);
+ opc->data = NULL;
+ opc->state = OPC_STATE_FINISHED;
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ if ((0 != (GNUNET_TESTBED_ET_OPERATION_FINISHED & c->event_mask)) &&
+ (NULL != c->cc))
+ {
+ opc->data = GNUNET_TESTBED_extract_config_ (&msg->header);
+ event.type = GNUNET_TESTBED_ET_OPERATION_FINISHED;
+ event.details.operation_finished.generic = opc->data;
+ event.details.operation_finished.operation = opc->op;
+ event.details.operation_finished.op_cls = op_cls;
+ event.details.operation_finished.emsg = NULL;
+ c->cc (c->cc_cls, &event);
+ }
+ return GNUNET_YES;
+}
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_NEEDCONTROLLERCONFIG message from
+ * controller (testbed service)
+ *
+ * @param c the controller handler
+ * @param msg message received
+ * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
+ * not
+ */
+static int
+handle_need_controller_config (struct GNUNET_TESTBED_Controller *c,
+ const struct GNUNET_TESTBED_NeedControllerConfig * msg)
+{
+ struct OperationContext *opc;
+ uint64_t op_id;
+
+ op_id = GNUNET_ntohll (msg->operation_id);
+ if (NULL == (opc = find_opc (c, op_id)))
+ {
+ LOG_DEBUG ("Operation not found\n");
+ return GNUNET_YES;
+ }
+ /* This has to be a forwarded operation since there is no function in the
+ testbed API to create an operation context for this message type */
+ GNUNET_assert (OP_FORWARDED == opc->type);
+ handle_forwarded_operation_msg (c, opc,
+ (const struct GNUNET_MessageHeader *) msg);
+ return GNUNET_YES;
+}
+
+
+/**
+ * Handler for messages from controller (testbed service)
+ *
+ * @param cls the controller handler
+ * @param msg message received, NULL on timeout or fatal error
+ */
+static void
+message_handler (void *cls, const struct GNUNET_MessageHeader *msg)
+{
+ struct GNUNET_TESTBED_Controller *c = cls;
+ int status;
+ uint16_t msize;
+
+ c->in_receive = GNUNET_NO;
+ /* FIXME: Add checks for message integrity */
+ if (NULL == msg)
+ {
+ LOG_DEBUG ("Receive timed out or connection to service dropped\n");
+ return;
+ }
+ status = GNUNET_OK;
+ msize = ntohs (msg->size);
+ switch (ntohs (msg->type))
+ {
+ case GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM:
+ GNUNET_assert (msize >=
+ sizeof (struct GNUNET_TESTBED_HostConfirmedMessage));
+ status =
+ handle_addhostconfirm (c,
+ (const struct GNUNET_TESTBED_HostConfirmedMessage
+ *) msg);
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS:
+ GNUNET_assert (msize ==
+ sizeof (struct
+ GNUNET_TESTBED_GenericOperationSuccessEventMessage));
+ status =
+ handle_opsuccess (c,
+ (const struct
+ GNUNET_TESTBED_GenericOperationSuccessEventMessage *)
+ msg);
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS:
+ GNUNET_assert (msize ==
+ sizeof (struct
+ GNUNET_TESTBED_PeerCreateSuccessEventMessage));
+ status =
+ handle_peer_create_success (c,
+ (const struct
+ GNUNET_TESTBED_PeerCreateSuccessEventMessage
+ *) msg);
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT:
+ GNUNET_assert (msize == sizeof (struct GNUNET_TESTBED_PeerEventMessage));
+ status =
+ handle_peer_event (c,
+ (const struct GNUNET_TESTBED_PeerEventMessage *)
+ msg);
+
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG:
+ GNUNET_assert (msize >=
+ sizeof (struct
+ GNUNET_TESTBED_PeerConfigurationInformationMessage));
+ status =
+ handle_peer_config (c,
+ (const struct
+ GNUNET_TESTBED_PeerConfigurationInformationMessage
+ *) msg);
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT:
+ GNUNET_assert (msize ==
+ sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
+ status =
+ handle_peer_conevent (c,
+ (const struct
+ GNUNET_TESTBED_ConnectionEventMessage *) msg);
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONFAILEVENT:
+ GNUNET_assert (msize >=
+ sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage));
+ status =
+ handle_op_fail_event (c,
+ (const struct
+ GNUNET_TESTBED_OperationFailureEventMessage *)
+ msg);
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG:
+ GNUNET_assert (msize >
+ sizeof (struct GNUNET_TESTBED_SlaveConfiguration));
+ status =
+ handle_slave_config (c, (const struct
+ GNUNET_TESTBED_SlaveConfiguration *) msg);
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_NEEDCONTROLLERCONFIG:
+ GNUNET_assert (msize == sizeof (struct
+ GNUNET_TESTBED_NeedControllerConfig));
+ status =
+ handle_need_controller_config (c, (const struct
+ GNUNET_TESTBED_NeedControllerConfig
+ *) msg);
+ break;
+ default:
+ GNUNET_assert (0);
+ }
+ if ((GNUNET_OK == status) && (GNUNET_NO == c->in_receive))
+ {
+ c->in_receive = GNUNET_YES;
+ GNUNET_CLIENT_receive (c->client, &message_handler, c,
+ GNUNET_TIME_UNIT_FOREVER_REL);
+ }
+}
+
+
+/**
+ * Function called to notify a client about the connection begin ready to queue
+ * more data. "buf" will be NULL and "size" zero if the connection was closed
+ * for writing in the meantime.
+ *
+ * @param cls closure
+ * @param size number of bytes available in buf
+ * @param buf where the callee should write the message
+ * @return number of bytes written to buf
+ */
+static size_t
+transmit_ready_notify (void *cls, size_t size, void *buf)
+{
+ struct GNUNET_TESTBED_Controller *c = cls;
+ struct MessageQueue *mq_entry;
+
+ c->th = NULL;
+ mq_entry = c->mq_head;
+ GNUNET_assert (NULL != mq_entry);
+ if ((0 == size) && (NULL == buf)) /* Timeout */
+ {
+ LOG_DEBUG ("Message sending timed out -- retrying\n");
+ c->th =
+ GNUNET_CLIENT_notify_transmit_ready (c->client,
+ ntohs (mq_entry->msg->size),
+ TIMEOUT_REL, GNUNET_YES,
+ &transmit_ready_notify, c);
+ return 0;
+ }
+ GNUNET_assert (ntohs (mq_entry->msg->size) <= size);
+ size = ntohs (mq_entry->msg->size);
+ memcpy (buf, mq_entry->msg, size);
+ LOG_DEBUG ("Message of type: %u and size: %u sent\n",
+ ntohs (mq_entry->msg->type), size);
+ GNUNET_free (mq_entry->msg);
+ GNUNET_CONTAINER_DLL_remove (c->mq_head, c->mq_tail, mq_entry);
+ GNUNET_free (mq_entry);
+ mq_entry = c->mq_head;
+ if (NULL != mq_entry)
+ c->th =
+ GNUNET_CLIENT_notify_transmit_ready (c->client,
+ ntohs (mq_entry->msg->size),
+ TIMEOUT_REL, GNUNET_YES,
+ &transmit_ready_notify, c);
+ if (GNUNET_NO == c->in_receive)
+ {
+ c->in_receive = GNUNET_YES;
+ GNUNET_CLIENT_receive (c->client, &message_handler, c,
+ GNUNET_TIME_UNIT_FOREVER_REL);
+ }
+ return size;
+}
+
+
+/**
+ * Queues a message in send queue for sending to the service
+ *
+ * @param controller the handle to the controller
+ * @param msg the message to queue
+ */
+void
+GNUNET_TESTBED_queue_message_ (struct GNUNET_TESTBED_Controller *controller,
+ struct GNUNET_MessageHeader *msg)
+{
+ struct MessageQueue *mq_entry;
+ uint16_t type;
+ uint16_t size;
+
+ type = ntohs (msg->type);
+ size = ntohs (msg->size);
+ GNUNET_assert ((GNUNET_MESSAGE_TYPE_TESTBED_INIT <= type) &&
+ (GNUNET_MESSAGE_TYPE_TESTBED_MAX > type));
+ mq_entry = GNUNET_malloc (sizeof (struct MessageQueue));
+ mq_entry->msg = msg;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Queueing message of type %u, size %u for sending\n", type,
+ ntohs (msg->size));
+ GNUNET_CONTAINER_DLL_insert_tail (controller->mq_head, controller->mq_tail,
+ mq_entry);
+ if (NULL == controller->th)
+ controller->th =
+ GNUNET_CLIENT_notify_transmit_ready (controller->client, size,
+ TIMEOUT_REL, GNUNET_YES,
+ &transmit_ready_notify,
+ controller);
+}
+
+
+/**
+ * Sends the given message as an operation. The given callback is called when a
+ * reply for the operation is available. Call
+ * GNUNET_TESTBED_forward_operation_msg_cancel_() to cleanup the returned
+ * operation context if the cc hasn't been called
+ *
+ * @param controller the controller to which the message has to be sent
+ * @param operation_id the operation id of the message
+ * @param msg the message to send
+ * @param cc the callback to call when reply is available
+ * @param cc_cls the closure for the above callback
+ * @return the operation context which can be used to cancel the forwarded
+ * operation
+ */
+struct OperationContext *
+GNUNET_TESTBED_forward_operation_msg_ (struct GNUNET_TESTBED_Controller
+ *controller, uint64_t operation_id,
+ const struct GNUNET_MessageHeader *msg,
+ GNUNET_CLIENT_MessageHandler cc,
+ void *cc_cls)
+{
+ struct OperationContext *opc;
+ struct ForwardedOperationData *data;
+ struct GNUNET_MessageHeader *dup_msg;
+ uint16_t msize;
+
+ data = GNUNET_malloc (sizeof (struct ForwardedOperationData));
+ data->cc = cc;
+ data->cc_cls = cc_cls;
+ opc = GNUNET_malloc (sizeof (struct OperationContext));
+ opc->c = controller;
+ opc->type = OP_FORWARDED;
+ opc->data = data;
+ opc->id = operation_id;
+ msize = ntohs (msg->size);
+ dup_msg = GNUNET_malloc (msize);
+ (void) memcpy (dup_msg, msg, msize);
+ GNUNET_TESTBED_queue_message_ (opc->c, dup_msg);
+ GNUNET_CONTAINER_DLL_insert_tail (controller->ocq_head, controller->ocq_tail,
+ opc);
+ return opc;
+}
+
+
+/**
+ * Function to cancel an operation created by simply forwarding an operation
+ * message.
+ *
+ * @param opc the operation context from GNUNET_TESTBED_forward_operation_msg_()
+ */
+void
+GNUNET_TESTBED_forward_operation_msg_cancel_ (struct OperationContext *opc)
+{
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ GNUNET_free (opc->data);
+ GNUNET_free (opc);
+}
+
+
+/**
+ * Functions with this signature are called whenever a
+ * complete message is received by the tokenizer.
+ *
+ * Do not call GNUNET_SERVER_mst_destroy in callback
+ *
+ * @param cls closure
+ * @param client identification of the client
+ * @param message the actual message
+ *
+ * @return GNUNET_OK on success, GNUNET_SYSERR to stop further processing
+ */
+static int
+helper_mst (void *cls, void *client, const struct GNUNET_MessageHeader *message)
+{
+ struct GNUNET_TESTBED_ControllerProc *cp = cls;
+ const struct GNUNET_TESTBED_HelperReply *msg;
+ const char *hostname;
+ char *config;
+ uLongf config_size;
+ uLongf xconfig_size;
+
+ msg = (const struct GNUNET_TESTBED_HelperReply *) message;
+ GNUNET_assert (sizeof (struct GNUNET_TESTBED_HelperReply) <
+ ntohs (msg->header.size));
+ GNUNET_assert (GNUNET_MESSAGE_TYPE_TESTBED_HELPER_REPLY ==
+ ntohs (msg->header.type));
+ config_size = (uLongf) ntohs (msg->config_size);
+ xconfig_size =
+ (uLongf) (ntohs (msg->header.size) -
+ sizeof (struct GNUNET_TESTBED_HelperReply));
+ config = GNUNET_malloc (config_size);
+ GNUNET_assert (Z_OK ==
+ uncompress ((Bytef *) config, &config_size,
+ (const Bytef *) &msg[1], xconfig_size));
+ GNUNET_assert (NULL == cp->cfg);
+ cp->cfg = GNUNET_CONFIGURATION_create ();
+ GNUNET_assert (GNUNET_CONFIGURATION_deserialize
+ (cp->cfg, config, config_size, GNUNET_NO));
+ GNUNET_free (config);
+ if ((NULL == cp->host) ||
+ (NULL == (hostname = GNUNET_TESTBED_host_get_hostname_ (cp->host))))
+ hostname = "localhost";
+ /* Change the hostname so that we can connect to it */
+ GNUNET_CONFIGURATION_set_value_string (cp->cfg, "testbed", "hostname",
+ hostname);
+ cp->cb (cp->cls, cp->cfg, GNUNET_OK);
+ return GNUNET_OK;
+}
+
+
+/**
+ * Continuation function from GNUNET_HELPER_send()
+ *
+ * @param cls closure
+ * @param result GNUNET_OK on success,
+ * GNUNET_NO if helper process died
+ * GNUNET_SYSERR during GNUNET_HELPER_stop
+ */
+static void
+clear_msg (void *cls, int result)
+{
+ struct GNUNET_TESTBED_ControllerProc *cp = cls;
+
+ GNUNET_assert (NULL != cp->shandle);
+ cp->shandle = NULL;
+ GNUNET_free (cp->msg);
+}
+
+
+/**
+ * Callback that will be called when the helper process dies. This is not called
+ * when the helper process is stoped using GNUNET_HELPER_stop()
+ *
+ * @param cls the closure from GNUNET_HELPER_start()
+ */
+static void
+helper_exp_cb (void *cls)
+{
+ struct GNUNET_TESTBED_ControllerProc *cp = cls;
+ GNUNET_TESTBED_ControllerStatusCallback cb;
+ void *cb_cls;
+
+ cb = cp->cb;
+ cb_cls = cp->cls;
+ cp->helper = NULL;
+ GNUNET_TESTBED_controller_stop (cp);
+ if (NULL != cb)
+ cb (cb_cls, NULL, GNUNET_SYSERR);
+}
+
+
+/**
+ * Function to call to start a link-controllers type operation once all queues
+ * the operation is part of declare that the operation can be activated.
+ *
+ * @param cls the closure from GNUNET_TESTBED_operation_create_()
+ */
+static void
+opstart_link_controllers (void *cls)
+{
+ struct OperationContext *opc = cls;
+ struct ControllerLinkData *data;
+ struct GNUNET_TESTBED_ControllerLinkMessage *msg;
+
+ GNUNET_assert (NULL != opc->data);
+ data = opc->data;
+ msg = data->msg;
+ data->msg = NULL;
+ opc->state = OPC_STATE_STARTED;
+ GNUNET_CONTAINER_DLL_insert_tail (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ GNUNET_TESTBED_queue_message_ (opc->c, &msg->header);
+}
+
+
+/**
+ * Callback which will be called when link-controllers type operation is released
+ *
+ * @param cls the closure from GNUNET_TESTBED_operation_create_()
+ */
+static void
+oprelease_link_controllers (void *cls)
+{
+ struct OperationContext *opc = cls;
+ struct ControllerLinkData *data;
+
+ data = opc->data;
+ switch (opc->state)
+ {
+ case OPC_STATE_INIT:
+ GNUNET_free (data->msg);
+ break;
+ case OPC_STATE_STARTED:
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ break;
+ case OPC_STATE_FINISHED:
+ break;
+ }
+ GNUNET_free_non_null (data);
+ GNUNET_free (opc);
+}
+
+
+/**
+ * Function to be called when get slave config operation is ready
+ *
+ * @param cls the OperationContext of type OP_GET_SLAVE_CONFIG
+ */
+static void
+opstart_get_slave_config (void *cls)
+{
+ struct OperationContext *opc = cls;
+ struct GetSlaveConfigData *data;
+ struct GNUNET_TESTBED_SlaveGetConfigurationMessage *msg;
+ uint16_t msize;
+
+ data = opc->data;
+ msize = sizeof (struct GNUNET_TESTBED_SlaveGetConfigurationMessage);
+ msg = GNUNET_malloc (msize);
+ msg->header.size = htons (msize);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_GETSLAVECONFIG);
+ msg->operation_id = GNUNET_htonll (opc->id);
+ msg->slave_id = htonl (data->slave_id);
+ GNUNET_CONTAINER_DLL_insert_tail (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ GNUNET_TESTBED_queue_message_ (opc->c, &msg->header);
+ opc->state = OPC_STATE_STARTED;
+}
+
+
+/**
+ * Function to be called when get slave config operation is cancelled or finished
+ *
+ * @param cls the OperationContext of type OP_GET_SLAVE_CONFIG
+ */
+static void
+oprelease_get_slave_config (void *cls)
+{
+ struct OperationContext *opc = cls;
+
+ switch (opc->state)
+ {
+ case OPC_STATE_INIT:
+ GNUNET_free (opc->data);
+ break;
+ case OPC_STATE_STARTED:
+ GNUNET_free (opc->data);
+ GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
+ break;
+ case OPC_STATE_FINISHED:
+ if (NULL != opc->data)
+ GNUNET_CONFIGURATION_destroy (opc->data);
+ break;
+ }
+ GNUNET_free (opc);
+}
+
+
+/**
+ * Starts a controller process at the host. FIXME: add controller start callback
+ * with the configuration with which the controller is started
+ *
+ * @param controller_ip the ip address of the controller. Will be set as TRUSTED
+ * host when starting testbed controller at host
+ * @param host the host where the controller has to be started; NULL for
+ * localhost
+ * @param cfg template configuration to use for the remote controller; the
+ * remote controller will be started with a slightly modified
+ * configuration (port numbers, unix domain sockets and service home
+ * values are changed as per TESTING library on the remote host)
+ * @param cb function called when the controller is successfully started or
+ * dies unexpectedly; GNUNET_TESTBED_controller_stop shouldn't be
+ * called if cb is called with GNUNET_SYSERR as status. Will never be
+ * called in the same task as 'GNUNET_TESTBED_controller_start'
+ * (synchronous errors will be signalled by returning NULL). This
+ * parameter cannot be NULL.
+ * @param cls closure for above callbacks
+ * @return the controller process handle, NULL on errors
+ */
+struct GNUNET_TESTBED_ControllerProc *
+GNUNET_TESTBED_controller_start (const char *controller_ip,
+ struct GNUNET_TESTBED_Host *host,
+ const struct GNUNET_CONFIGURATION_Handle *cfg,
+ GNUNET_TESTBED_ControllerStatusCallback cb,
+ void *cls)
+{
+ struct GNUNET_TESTBED_ControllerProc *cp;
+ struct GNUNET_TESTBED_HelperInit *msg;
+ const char *hostname;
+ static char *const binary_argv[] = {
+ HELPER_TESTBED_BINARY, NULL
+ };
+
+ hostname = NULL;
+ cp = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ControllerProc));
+ if ((NULL == host) || (0 == GNUNET_TESTBED_host_get_id_ (host)))
+ cp->helper =
+ GNUNET_HELPER_start (GNUNET_YES, HELPER_TESTBED_BINARY, binary_argv,
+ &helper_mst, &helper_exp_cb, cp);
+ else
+ {
+ char *remote_args[8];
+ unsigned int argp;
+ const char *username;
+
+ username = GNUNET_TESTBED_host_get_username_ (host);
+ hostname = GNUNET_TESTBED_host_get_hostname_ (host);
+ GNUNET_asprintf (&cp->port, "%u", GNUNET_TESTBED_host_get_ssh_port_ (host));
+ if (NULL == username)
+ GNUNET_asprintf (&cp->dst, "%s", hostname);
+ else
+ GNUNET_asprintf (&cp->dst, "%s@%s", username, hostname);
+ LOG_DEBUG ("Starting SSH to destination %s\n", cp->dst);
+ argp = 0;
+ remote_args[argp++] = "ssh";
+ remote_args[argp++] = "-p";
+ remote_args[argp++] = cp->port;
+ remote_args[argp++] = "-o";
+ remote_args[argp++] = "BatchMode=yes";
+ remote_args[argp++] = cp->dst;
+ remote_args[argp++] = HELPER_TESTBED_BINARY_SSH;
+ remote_args[argp++] = NULL;
+ GNUNET_assert (argp == 8);
+ cp->helper =
+ GNUNET_HELPER_start (GNUNET_NO, "ssh", remote_args, &helper_mst,
+ &helper_exp_cb, cp);
+ }
+ if (NULL == cp->helper)
+ {
+ GNUNET_free_non_null (cp->port);
+ GNUNET_free_non_null (cp->dst);
+ GNUNET_free (cp);
+ return NULL;
+ }
+ cp->host = host;
+ cp->cb = cb;
+ cp->cls = cls;
+ msg = GNUNET_TESTBED_create_helper_init_msg_ (controller_ip, hostname, cfg);
+ cp->msg = &msg->header;
+ cp->shandle =
+ GNUNET_HELPER_send (cp->helper, &msg->header, GNUNET_NO, &clear_msg, cp);
+ if (NULL == cp->shandle)
+ {
+ GNUNET_free (msg);
+ GNUNET_TESTBED_controller_stop (cp);
+ return NULL;
+ }
+ return cp;
+}
+
+
+/**
+ * Stop the controller process (also will terminate all peers and controllers
+ * dependent on this controller). This function blocks until the testbed has
+ * been fully terminated (!). The controller status cb from
+ * GNUNET_TESTBED_controller_start() will not be called.
+ *
+ * @param cproc the controller process handle
+ */
+void
+GNUNET_TESTBED_controller_stop (struct GNUNET_TESTBED_ControllerProc *cproc)
+{
+ if (NULL != cproc->shandle)
+ GNUNET_HELPER_send_cancel (cproc->shandle);
+ if (NULL != cproc->helper)
+ GNUNET_HELPER_stop (cproc->helper);
+ if (NULL != cproc->cfg)
+ GNUNET_CONFIGURATION_destroy (cproc->cfg);
+ GNUNET_free_non_null (cproc->port);
+ GNUNET_free_non_null (cproc->dst);
+ GNUNET_free (cproc);
+}
+
+
+/**
+ * Start a controller process using the given configuration at the
+ * given host.
+ *
+ * @param cfg configuration to use
+ * @param host host to run the controller on; This should be the same host if
+ * the controller was previously started with
+ * GNUNET_TESTBED_controller_start; NULL for localhost
+ * @param event_mask bit mask with set of events to call 'cc' for;
+ * or-ed values of "1LL" shifted by the
+ * respective 'enum GNUNET_TESTBED_EventType'
+ * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) | ...")
+ * @param cc controller callback to invoke on events
+ * @param cc_cls closure for cc
+ * @return handle to the controller
+ */
+struct GNUNET_TESTBED_Controller *
+GNUNET_TESTBED_controller_connect (const struct GNUNET_CONFIGURATION_Handle
+ *cfg, struct GNUNET_TESTBED_Host *host,
+ uint64_t event_mask,
+ GNUNET_TESTBED_ControllerCallback cc,
+ void *cc_cls)
+{
+ struct GNUNET_TESTBED_Controller *controller;
+ struct GNUNET_TESTBED_InitMessage *msg;
+ const char *controller_hostname;
+ unsigned long long max_parallel_operations;
+ unsigned long long max_parallel_service_connections;
+ unsigned long long max_parallel_topology_config_operations;
+
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_number (cfg, "testbed",
+ "MAX_PARALLEL_OPERATIONS",
+ &max_parallel_operations))
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_number (cfg, "testbed",
+ "MAX_PARALLEL_SERVICE_CONNECTIONS",
+ &max_parallel_service_connections))
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_number (cfg, "testbed",
+ "MAX_PARALLEL_TOPOLOGY_CONFIG_OPERATIONS",
+ &max_parallel_topology_config_operations))
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+ controller = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Controller));
+ controller->cc = cc;
+ controller->cc_cls = cc_cls;
+ controller->event_mask = event_mask;
+ controller->cfg = GNUNET_CONFIGURATION_dup (cfg);
+ controller->client = GNUNET_CLIENT_connect ("testbed", controller->cfg);
+ if (NULL == controller->client)
+ {
+ GNUNET_TESTBED_controller_disconnect (controller);
+ return NULL;
+ }
+ if (NULL == host)
+ {
+ host = GNUNET_TESTBED_host_create_by_id_ (0);
+ if (NULL == host) /* If the above host create fails */
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Treating NULL host as localhost. Multiple references to localhost "
+ "may break when localhost freed before calling disconnect \n");
+ host = GNUNET_TESTBED_host_lookup_by_id_ (0);
+ }
+ else
+ {
+ controller->aux_host = GNUNET_YES;
+ }
+ }
+ GNUNET_assert (NULL != host);
+ GNUNET_TESTBED_mark_host_registered_at_ (host, controller);
+ controller->host = host;
+ controller->opq_parallel_operations =
+ GNUNET_TESTBED_operation_queue_create_ ((unsigned int)
+ max_parallel_operations);
+ controller->opq_parallel_service_connections =
+ GNUNET_TESTBED_operation_queue_create_ ((unsigned int)
+ max_parallel_service_connections);
+ controller->opq_parallel_topology_config_operations=
+ GNUNET_TESTBED_operation_queue_create_ ((unsigned int)
+ max_parallel_service_connections);
+ controller_hostname = GNUNET_TESTBED_host_get_hostname_ (host);
+ if (NULL == controller_hostname)
+ controller_hostname = "127.0.0.1";
+ msg =
+ GNUNET_malloc (sizeof (struct GNUNET_TESTBED_InitMessage) +
+ strlen (controller_hostname) + 1);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_INIT);
+ msg->header.size =
+ htons (sizeof (struct GNUNET_TESTBED_InitMessage) +
+ strlen (controller_hostname) + 1);
+ msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (host));
+ msg->event_mask = GNUNET_htonll (controller->event_mask);
+ strcpy ((char *) &msg[1], controller_hostname);
+ GNUNET_TESTBED_queue_message_ (controller,
+ (struct GNUNET_MessageHeader *) msg);
+ return controller;
+}
+
+
+/**
+ * Configure shared services at a controller. Using this function,
+ * you can specify that certain services (such as "resolver")
+ * should not be run for each peer but instead be shared
+ * across N peers on the specified host. This function
+ * must be called before any peers are created at the host.
+ *
+ * @param controller controller to configure
+ * @param service_name name of the service to share
+ * @param num_peers number of peers that should share one instance
+ * of the specified service (1 for no sharing is the default),
+ * use 0 to disable the service
+ */
+void
+GNUNET_TESTBED_controller_configure_sharing (struct GNUNET_TESTBED_Controller
+ *controller,
+ const char *service_name,
+ uint32_t num_peers)
+{
+ struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
+ uint16_t service_name_size;
+ uint16_t msg_size;
+
+ service_name_size = strlen (service_name) + 1;
+ msg_size =
+ sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage) +
+ service_name_size;
+ msg = GNUNET_malloc (msg_size);
+ msg->header.size = htons (msg_size);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_SERVICESHARE);
+ msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (controller->host));
+ msg->num_peers = htonl (num_peers);
+ memcpy (&msg[1], service_name, service_name_size);
+ GNUNET_TESTBED_queue_message_ (controller,
+ (struct GNUNET_MessageHeader *) msg);
+}
+
+
+/**
+ * disconnects from the controller.
+ *
+ * @param controller handle to controller to stop
+ */
+void
+GNUNET_TESTBED_controller_disconnect (struct GNUNET_TESTBED_Controller
+ *controller)
+{
+ struct MessageQueue *mq_entry;
+
+ if (NULL != controller->th)
+ GNUNET_CLIENT_notify_transmit_ready_cancel (controller->th);
+ /* Clear the message queue */
+ while (NULL != (mq_entry = controller->mq_head))
+ {
+ GNUNET_CONTAINER_DLL_remove (controller->mq_head, controller->mq_tail,
+ mq_entry);
+ GNUNET_free (mq_entry->msg);
+ GNUNET_free (mq_entry);
+ }
+ if (NULL != controller->client)
+ GNUNET_CLIENT_disconnect (controller->client);
+ GNUNET_CONFIGURATION_destroy (controller->cfg);
+ if (GNUNET_YES == controller->aux_host)
+ GNUNET_TESTBED_host_destroy (controller->host);
+ GNUNET_TESTBED_operation_queue_destroy_ (controller->opq_parallel_operations);
+ GNUNET_TESTBED_operation_queue_destroy_
+ (controller->opq_parallel_service_connections);
+ GNUNET_TESTBED_operation_queue_destroy_
+ (controller->opq_parallel_topology_config_operations);
+ GNUNET_free (controller);
+}
+
+
+/**
+ * Register a host with the controller
+ *
+ * @param controller the controller handle
+ * @param host the host to register
+ * @param cc the completion callback to call to inform the status of
+ * registration. After calling this callback the registration handle
+ * will be invalid. Cannot be NULL.
+ * @param cc_cls the closure for the cc
+ * @return handle to the host registration which can be used to cancel the
+ * registration
+ */
+struct GNUNET_TESTBED_HostRegistrationHandle *
+GNUNET_TESTBED_register_host (struct GNUNET_TESTBED_Controller *controller,
+ struct GNUNET_TESTBED_Host *host,
+ GNUNET_TESTBED_HostRegistrationCompletion cc,
+ void *cc_cls)
+{
+ struct GNUNET_TESTBED_HostRegistrationHandle *rh;
+ struct GNUNET_TESTBED_AddHostMessage *msg;
+ const char *username;
+ const char *hostname;
+ uint16_t msg_size;
+ uint16_t user_name_length;
+
+ if (NULL != controller->rh)
+ return NULL;
+ hostname = GNUNET_TESTBED_host_get_hostname_ (host);
+ if (GNUNET_YES == GNUNET_TESTBED_is_host_registered_ (host, controller))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Host hostname: %s already registered\n",
+ (NULL == hostname) ? "localhost" : hostname);
+ return NULL;
+ }
+ rh = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_HostRegistrationHandle));
+ rh->host = host;
+ rh->c = controller;
+ GNUNET_assert (NULL != cc);
+ rh->cc = cc;
+ rh->cc_cls = cc_cls;
+ controller->rh = rh;
+ username = GNUNET_TESTBED_host_get_username_ (host);
+ msg_size = (sizeof (struct GNUNET_TESTBED_AddHostMessage));
+ user_name_length = 0;
+ if (NULL != username)
+ {
+ user_name_length = strlen (username) + 1;
+ msg_size += user_name_length;
+ }
+ /* FIXME: what happens when hostname is NULL? localhost */
+ GNUNET_assert (NULL != hostname);
+ msg_size += strlen (hostname) + 1;
+ msg = GNUNET_malloc (msg_size);
+ msg->header.size = htons (msg_size);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST);
+ msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (host));
+ msg->ssh_port = htons (GNUNET_TESTBED_host_get_ssh_port_ (host));
+ msg->user_name_length = htons (user_name_length);
+ if (NULL != username)
+ memcpy (&msg[1], username, user_name_length);
+ strcpy (((void *) &msg[1]) + user_name_length, hostname);
+ GNUNET_TESTBED_queue_message_ (controller,
+ (struct GNUNET_MessageHeader *) msg);
+ return rh;
+}
+
+
+/**
+ * Cancel the pending registration. Note that if the registration message is
+ * already sent to the service the cancellation has only the effect that the
+ * registration completion callback for the registration is never called.
+ *
+ * @param handle the registration handle to cancel
+ */
+void
+GNUNET_TESTBED_cancel_registration (struct GNUNET_TESTBED_HostRegistrationHandle
+ *handle)
+{
+ if (handle != handle->c->rh)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ handle->c->rh = NULL;
+ GNUNET_free (handle);
+}
+
+
+/**
+ * Same as the GNUNET_TESTBED_controller_link_2, however sets the operation id
+ * of the generation operation to the given id
+ *
+ * @param op_cls the operation closure for the event which is generated to
+ * signal success or failure of this operation
+ * @param operation_id the id to use for the generated operation's id
+ * @param master handle to the master controller who creates the association
+ * @param delegated_host requests to which host should be delegated; cannot be NULL
+ * @param slave_host which host is used to run the slave controller; use NULL to
+ * make the master controller connect to the delegated host
+ * @param sxcfg serialized and compressed configuration
+ * @param sxcfg_size the size sxcfg
+ * @param scfg_size the size of uncompressed serialized configuration
+ * @param is_subordinate GNUNET_YES if the controller at delegated_host should
+ * be started by the slave controller; GNUNET_NO if the slave
+ * controller has to connect to the already started delegated
+ * controller via TCP/IP
+ * @return the operation handle
+ */
+static struct GNUNET_TESTBED_Operation *
+GNUNET_TESTBED_controller_link_2_with_opid (void *op_cls,
+ uint64_t operation_id,
+ struct GNUNET_TESTBED_Controller *master,
+ struct GNUNET_TESTBED_Host
+ * delegated_host,
+ struct GNUNET_TESTBED_Host *slave_host,
+ const char *sxcfg,
+ size_t sxcfg_size,
+ size_t scfg_size, int is_subordinate)
+{
+ struct OperationContext *opc;
+ struct GNUNET_TESTBED_ControllerLinkMessage *msg;
+ struct ControllerLinkData *data;
+ uint16_t msg_size;
+
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_TESTBED_is_host_registered_ (delegated_host, master));
+ if ((NULL != slave_host) && (0 != GNUNET_TESTBED_host_get_id_ (slave_host)))
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_TESTBED_is_host_registered_ (slave_host, master));
+ msg_size = sxcfg_size + sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
+ msg = GNUNET_malloc (msg_size);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS);
+ msg->header.size = htons (msg_size);
+ msg->delegated_host_id = htonl (GNUNET_TESTBED_host_get_id_ (delegated_host));
+ msg->slave_host_id =
+ htonl (GNUNET_TESTBED_host_get_id_
+ ((NULL != slave_host) ? slave_host : master->host));
+ msg->config_size = htons ((uint16_t) scfg_size);
+ msg->is_subordinate = (GNUNET_YES == is_subordinate) ? 1 : 0;
+ memcpy (&msg[1], sxcfg, sxcfg_size);
+ data = GNUNET_malloc (sizeof (struct ControllerLinkData));
+ data->msg = msg;
+ data->op_cls = op_cls;
+ opc = GNUNET_malloc (sizeof (struct OperationContext));
+ opc->c = master;
+ opc->data = data;
+ opc->type = OP_LINK_CONTROLLERS;
+ opc->id = master->operation_counter++;
+ opc->state = OPC_STATE_INIT;
+ msg->operation_id = GNUNET_htonll (opc->id);
+ opc->op =
+ GNUNET_TESTBED_operation_create_ (opc, &opstart_link_controllers,
+ &oprelease_link_controllers);
+ GNUNET_TESTBED_operation_queue_insert_ (master->opq_parallel_operations,
+ opc->op);
+ return opc->op;
+}
+
+
+/**
+ * Same as the GNUNET_TESTBED_controller_link, however expects configuration in
+ * serialized and compressed
+ *
+ * @param op_cls the operation closure for the event which is generated to
+ * signal success or failure of this operation
+ * @param master handle to the master controller who creates the association
+ * @param delegated_host requests to which host should be delegated; cannot be NULL
+ * @param slave_host which host is used to run the slave controller; use NULL to
+ * make the master controller connect to the delegated host
+ * @param sxcfg serialized and compressed configuration
+ * @param sxcfg_size the size sxcfg
+ * @param scfg_size the size of uncompressed serialized configuration
+ * @param is_subordinate GNUNET_YES if the controller at delegated_host should
+ * be started by the slave controller; GNUNET_NO if the slave
+ * controller has to connect to the already started delegated
+ * controller via TCP/IP
+ * @return the operation handle
+ */
+struct GNUNET_TESTBED_Operation *
+GNUNET_TESTBED_controller_link_2 (void *op_cls,
+ struct GNUNET_TESTBED_Controller *master,
+ struct GNUNET_TESTBED_Host *delegated_host,
+ struct GNUNET_TESTBED_Host *slave_host,
+ const char *sxcfg, size_t sxcfg_size,
+ size_t scfg_size, int is_subordinate)
+{
+ return
+ GNUNET_TESTBED_controller_link_2_with_opid (op_cls,
+ master->operation_counter++,
+ master,
+ delegated_host,
+ slave_host,
+ sxcfg, sxcfg_size,
+ scfg_size, is_subordinate);
+}
+
+
+/**
+ * Compresses given configuration using zlib compress
+ *
+ * @param config the serialized configuration
+ * @param size the size of config
+ * @param xconfig will be set to the compressed configuration (memory is fresly
+ * allocated)
+ * @return the size of the xconfig
+ */
+size_t
+GNUNET_TESTBED_compress_config_ (const char *config, size_t size,
+ char **xconfig)
+{
+ size_t xsize;
+
+ xsize = compressBound ((uLong) size);
+ *xconfig = GNUNET_malloc (xsize);
+ GNUNET_assert (Z_OK ==
+ compress2 ((Bytef *) * xconfig, (uLongf *) & xsize,
+ (const Bytef *) config, (uLongf) size,
+ Z_BEST_SPEED));
+ return xsize;
+}
+
+
+/**
+ * Same as the GNUNET_TESTBED_controller_link, however sets the operation id
+ * of the generation operation to the given id
+ *
+ * @param op_cls the operation closure for the event which is generated to
+ * signal success or failure of this operation
+ * @param operation_id the id to use for the generated operation's id
+ * @param master handle to the master controller who creates the association
+ * @param delegated_host requests to which host should be delegated; cannot be NULL
+ * @param slave_host which host is used to run the slave controller; use NULL to
+ * make the master controller connect to the delegated host
+ * @param slave_cfg configuration to use for the slave controller
+ * @param is_subordinate GNUNET_YES if the controller at delegated_host should
+ * be started by the slave controller; GNUNET_NO if the slave
+ * controller has to connect to the already started delegated
+ * controller via TCP/IP
+ * @return the operation handle
+ */
+struct GNUNET_TESTBED_Operation *
+GNUNET_TESTBED_controller_link_with_opid (void *op_cls,
+ uint64_t operation_id,
+ struct GNUNET_TESTBED_Controller *master,
+ struct GNUNET_TESTBED_Host *delegated_host,
+ struct GNUNET_TESTBED_Host *slave_host,
+ const struct GNUNET_CONFIGURATION_Handle
+ *slave_cfg, int is_subordinate)
+{
+ struct GNUNET_TESTBED_Operation *op;
+ char *config;
+ char *cconfig;
+ size_t cc_size;
+ size_t config_size;
+
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_TESTBED_is_host_registered_ (delegated_host, master));
+ if ((NULL != slave_host) && (0 != GNUNET_TESTBED_host_get_id_ (slave_host)))
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_TESTBED_is_host_registered_ (slave_host, master));
+ config = GNUNET_CONFIGURATION_serialize (slave_cfg, &config_size);
+ cc_size = GNUNET_TESTBED_compress_config_ (config, config_size, &cconfig);
+ GNUNET_free (config);
+ /* Configuration doesn't fit in 1 message */
+ GNUNET_assert ((UINT16_MAX -
+ sizeof (struct GNUNET_TESTBED_ControllerLinkMessage)) >= cc_size);
+ op = GNUNET_TESTBED_controller_link_2_with_opid (op_cls,
+ master->operation_counter++,
+ master, delegated_host,
+ slave_host,
+ (const char *) cconfig,
+ cc_size, config_size,
+ is_subordinate);
+ GNUNET_free (cconfig);
+ return op;
+}
+
+
+/**
+ * Create a link from slave controller to delegated controller. Whenever the
+ * master controller is asked to start a peer at the delegated controller the
+ * request will be routed towards slave controller (if a route exists). The
+ * slave controller will then route it to the delegated controller. The
+ * configuration of the delegated controller is given and is used to either
+ * create the delegated controller or to connect to an existing controller. Note
+ * that while starting the delegated controller the configuration will be
+ * modified to accommodate available free ports. the 'is_subordinate' specifies
+ * if the given delegated controller should be started and managed by the slave
+ * controller, or if the delegated controller already has a master and the slave
+ * controller connects to it as a non master controller. The success or failure
+ * of this operation will be signalled through the
+ * GNUNET_TESTBED_ControllerCallback() with an event of type
+ * GNUNET_TESTBED_ET_OPERATION_FINISHED
+ *
+ * @param op_cls the operation closure for the event which is generated to
+ * signal success or failure of this operation
+ * @param master handle to the master controller who creates the association
+ * @param delegated_host requests to which host should be delegated; cannot be NULL
+ * @param slave_host which host is used to run the slave controller; use NULL to
+ * make the master controller connect to the delegated host
+ * @param slave_cfg configuration to use for the slave controller
+ * @param is_subordinate GNUNET_YES if the controller at delegated_host should
+ * be started by the slave controller; GNUNET_NO if the slave
+ * controller has to connect to the already started delegated
+ * controller via TCP/IP
+ * @return the operation handle
+ */
+struct GNUNET_TESTBED_Operation *
+GNUNET_TESTBED_controller_link (void *op_cls,
+ struct GNUNET_TESTBED_Controller *master,
+ struct GNUNET_TESTBED_Host *delegated_host,
+ struct GNUNET_TESTBED_Host *slave_host,
+ const struct GNUNET_CONFIGURATION_Handle
+ *slave_cfg, int is_subordinate)
+{
+ return
+ GNUNET_TESTBED_controller_link_with_opid (op_cls,
+ master->operation_counter++,
+ master, delegated_host,
+ slave_host, slave_cfg,
+ is_subordinate);
+}
+
+
+/**
+ * Function to acquire the configuration of a running slave controller. The
+ * completion of the operation is signalled through the controller_cb from
+ * GNUNET_TESTBED_controller_connect(). If the operation is successful the
+ * handle to the configuration is available in the generic pointer of
+ * operation_finished field of struct GNUNET_TESTBED_EventInformation.
+ *
+ * @param op_cls the closure for the operation
+ * @param master the handle to master controller
+ * @param slave_host the host where the slave controller is running; the handle
+ * to the slave_host should remain valid until this operation is
+ * cancelled or marked as finished
+ * @return the operation handle; NULL if the slave_host is not registered at
+ * master
+ */
+struct GNUNET_TESTBED_Operation *
+GNUNET_TESTBED_get_slave_config (void *op_cls,
+ struct GNUNET_TESTBED_Controller *master,
+ struct GNUNET_TESTBED_Host *slave_host)
+{
+ struct OperationContext *opc;
+ struct GetSlaveConfigData *data;
+
+ if (GNUNET_NO == GNUNET_TESTBED_is_host_registered_ (slave_host, master))
+ return NULL;
+ data = GNUNET_malloc (sizeof (struct GetSlaveConfigData));
+ data->slave_id = GNUNET_TESTBED_host_get_id_ (slave_host);
+ data->op_cls = op_cls;
+ opc = GNUNET_malloc (sizeof (struct OperationContext));
+ opc->state = OPC_STATE_INIT;
+ opc->c = master;
+ opc->id = master->operation_counter++;
+ opc->type = OP_GET_SLAVE_CONFIG;
+ opc->data = data;
+ opc->op =
+ GNUNET_TESTBED_operation_create_ (opc, &opstart_get_slave_config,
+ &oprelease_get_slave_config);
+ GNUNET_TESTBED_operation_queue_insert_ (master->opq_parallel_operations,
+ opc->op);
+ return opc->op;
+}
+
+
+/**
+ * Ask the testbed controller to write the current overlay topology to
+ * a file. Naturally, the file will only contain a snapshot as the
+ * topology may evolve all the time.
+ *
+ * @param controller overlay controller to inspect
+ * @param filename name of the file the topology should
+ * be written to.
+ */
+void
+GNUNET_TESTBED_overlay_write_topology_to_file (struct GNUNET_TESTBED_Controller
+ *controller,
+ const char *filename)
+{
+ GNUNET_break (0);
+}
+
+
+/**
+ * Creates a helper initialization message. This function is here because we
+ * want to use this in testing
+ *
+ * @param cname the ip address of the controlling host
+ * @param hostname the hostname of the destination this message is intended for
+ * @param cfg the configuration that has to used to start the testbed service
+ * thru helper
+ * @return the initialization message
+ */
+struct GNUNET_TESTBED_HelperInit *
+GNUNET_TESTBED_create_helper_init_msg_ (const char *cname,
+ const char *hostname,
+ const struct GNUNET_CONFIGURATION_Handle
+ *cfg)
+{
+ struct GNUNET_TESTBED_HelperInit *msg;
+ char *config;
+ char *xconfig;
+ size_t config_size;
+ size_t xconfig_size;
+ uint16_t cname_len;
+ uint16_t hostname_len;
+ uint16_t msg_size;
+
+ config = GNUNET_CONFIGURATION_serialize (cfg, &config_size);
+ GNUNET_assert (NULL != config);
+ xconfig_size =
+ GNUNET_TESTBED_compress_config_ (config, config_size, &xconfig);
+ GNUNET_free (config);
+ cname_len = strlen (cname);
+ hostname_len = (NULL == hostname) ? 0 : strlen (hostname);
+ msg_size =
+ xconfig_size + cname_len + 1 + sizeof (struct GNUNET_TESTBED_HelperInit);
+ msg_size += hostname_len;
+ msg = GNUNET_realloc (xconfig, msg_size);
+ (void) memmove (((void *) &msg[1]) + cname_len + 1 + hostname_len,
+ msg,
+ xconfig_size);
+ msg->header.size = htons (msg_size);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_HELPER_INIT);
+ msg->cname_size = htons (cname_len);
+ msg->hostname_size = htons (hostname_len);
+ msg->config_size = htons (config_size);
+ (void) strcpy ((char *) &msg[1], cname);
+ if (0 != hostname_len)
+ (void) strncpy (((char *) &msg[1]) + cname_len + 1, hostname, hostname_len);
+ return msg;
+}
+
+
+/**
+ * Cancel a pending operation. Releases all resources
+ * of the operation and will ensure that no event
+ * is generated for the operation. Does NOT guarantee
+ * that the operation will be fully undone (or that
+ * nothing ever happened).
+ *
+ * @param operation operation to cancel
+ */
+void
+GNUNET_TESTBED_operation_cancel (struct GNUNET_TESTBED_Operation *operation)
+{
+ GNUNET_TESTBED_operation_done (operation);
+}
+
+
+/**
+ * Signal that the information from an operation has been fully
+ * processed. This function MUST be called for each event
+ * of type 'operation_finished' to fully remove the operation
+ * from the operation queue. After calling this function, the
+ * 'op_result' becomes invalid (!).
+ *
+ * @param operation operation to signal completion for
+ */
+void
+GNUNET_TESTBED_operation_done (struct GNUNET_TESTBED_Operation *operation)
+{
+ switch (operation->type)
+ {
+ case OP_PEER_CREATE:
+ case OP_PEER_DESTROY:
+ case OP_PEER_START:
+ case OP_PEER_STOP:
+ case OP_PEER_INFO:
+ case OP_OVERLAY_CONNECT:
+ case OP_LINK_CONTROLLERS:
+ GNUNET_TESTBED_operation_release_ (operation);
+ return;
+ default:
+ GNUNET_assert (0);
+ break;
+ }
+}
+
+
+/**
+ * Generates configuration by uncompressing configuration in given message. The
+ * given message should be of the following types:
+ * GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG,
+ * GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG
+ *
+ * @param msg the message containing compressed configuration
+ * @return handle to the parsed configuration
+ */
+struct GNUNET_CONFIGURATION_Handle *
+GNUNET_TESTBED_extract_config_ (const struct GNUNET_MessageHeader *msg)
+{
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+ Bytef *data;
+ const Bytef *xdata;
+ uLong data_len;
+ uLong xdata_len;
+ int ret;
+
+ switch (ntohs (msg->type))
+ {
+ case GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG:
+ {
+ const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *imsg;
+
+ imsg = (const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *)
+ msg;
+ data_len = (uLong) ntohs (imsg->config_size);
+ xdata_len = ntohs (imsg->header.size)
+ - sizeof (struct GNUNET_TESTBED_PeerConfigurationInformationMessage);
+ xdata = (const Bytef *) &imsg[1];
+ }
+ break;
+ case GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG:
+ {
+ const struct GNUNET_TESTBED_SlaveConfiguration *imsg;
+
+ imsg = (const struct GNUNET_TESTBED_SlaveConfiguration *) msg;
+ data_len = (uLong) ntohs (imsg->config_size);
+ xdata_len = ntohs (imsg->header.size)
+ - sizeof (struct GNUNET_TESTBED_SlaveConfiguration);
+ xdata = (const Bytef *) &imsg[1];
+ }
+ break;
+ default:
+ GNUNET_assert (0);
+ }
+ data = GNUNET_malloc (data_len);
+ if (Z_OK !=
+ (ret =
+ uncompress (data, &data_len, xdata, xdata_len)))
+ GNUNET_assert (0);
+ cfg = GNUNET_CONFIGURATION_create ();
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONFIGURATION_deserialize (cfg, (const char *) data,
+ (size_t) data_len,
+ GNUNET_NO));
+ GNUNET_free (data);
+ return cfg;
+}
+
+
+/**
+ * Checks the integrity of the OperationFailureEventMessage and if good returns
+ * the error message it contains.
+ *
+ * @param msg the OperationFailureEventMessage
+ * @return the error message
+ */
+const char *
+GNUNET_TESTBED_parse_error_string_ (const struct
+ GNUNET_TESTBED_OperationFailureEventMessage
+ *msg)
+{
+ uint16_t msize;
+ const char *emsg;
+
+ msize = ntohs (msg->header.size);
+ if (sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage) >= msize)
+ return NULL;
+ msize -= sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage);
+ emsg = (const char *) &msg[1];
+ if ('\0' != emsg[msize - 1])
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+ return emsg;
+}
+
+/* end of testbed_api.c */