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
+ 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
/**
* @file testing/testing_group.c
* @brief convenience API for writing testcases for GNUnet
+ * @author Nathan Evans
* @author Christian Grothoff
+ *
*/
#include "platform.h"
#include "gnunet_arm_service.h"
#include "gnunet_testing_lib.h"
+#include "gnunet_core_service.h"
+
+#define VERBOSE_TESTING GNUNET_NO
-#define VERBOSE_TESTING GNUNET_YES
+#define VERBOSE_TOPOLOGY GNUNET_YES
+
+#define DEBUG_CHURN GNUNET_NO
/**
* Lowest port used for GNUnet testing. Should be high enough to not
* conflict with the port range for "local" ports (client apps; see
* /proc/sys/net/ipv4/ip_local_port_range on Linux for example).
*/
-#define HIGH_PORT 32000
+#define HIGH_PORT 56000
+
+#define MAX_OUTSTANDING_CONNECTIONS 40
+
+#define MAX_CONCURRENT_HOSTKEYS 10
+
+#define MAX_CONCURRENT_STARTING 10
+
+#define MAX_CONCURRENT_SHUTDOWN 10
+
+#define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 200)
+
+#define CONNECT_ATTEMPTS 21
+
+/**
+ * Prototype of a function called whenever two peers would be connected
+ * in a certain topology.
+ */
+typedef unsigned int (*GNUNET_TESTING_ConnectionProcessor) (struct
+ GNUNET_TESTING_PeerGroup
+ * pg,
+ unsigned int
+ first,
+ unsigned int
+ second);
+
+
+/**
+ * Context for handling churning a peer group
+ */
+struct ChurnContext
+{
+ /**
+ * Callback used to notify of churning finished
+ */
+ GNUNET_TESTING_NotifyCompletion cb;
+
+ /**
+ * Closure for callback
+ */
+ void *cb_cls;
+
+ /**
+ * Number of peers that still need to be started
+ */
+ unsigned int num_to_start;
+
+ /**
+ * Number of peers that still need to be stopped
+ */
+ unsigned int num_to_stop;
+
+ /**
+ * Number of peers that failed to start
+ */
+ unsigned int num_failed_start;
+
+ /**
+ * Number of peers that failed to stop
+ */
+ unsigned int num_failed_stop;
+};
+
+struct RestartContext
+{
+ /**
+ * The group of peers being restarted
+ */
+ struct GNUNET_TESTING_PeerGroup *peer_group;
+
+ /**
+ * How many peers have been restarted thus far
+ */
+ unsigned int peers_restarted;
+
+ /**
+ * How many peers got an error when restarting
+ */
+ unsigned int peers_restart_failed;
+
+ /**
+ * The function to call once all peers have been restarted
+ */
+ GNUNET_TESTING_NotifyCompletion callback;
+
+ /**
+ * Closure for callback function
+ */
+ void *callback_cls;
+
+};
+
+
+struct ShutdownContext
+{
+ /**
+ * Total peers to wait for
+ */
+ unsigned int total_peers;
+
+ /**
+ * Number of peers successfully shut down
+ */
+ unsigned int peers_down;
+
+ /**
+ * Number of peers failed to shut down
+ */
+ unsigned int peers_failed;
+
+ /**
+ * Number of peers we have started shutting
+ * down. If too many, wait on them.
+ */
+ unsigned int outstanding;
+
+ /**
+ * Timeout for shutdown.
+ */
+ struct GNUNET_TIME_Relative timeout;
+
+ /**
+ * Callback to call when all peers either
+ * shutdown or failed to shutdown
+ */
+ GNUNET_TESTING_NotifyCompletion cb;
+
+ /**
+ * Closure for cb
+ */
+ void *cb_cls;
+};
+
+/**
+ * Individual shutdown context for a particular peer.
+ */
+struct PeerShutdownContext
+{
+ /**
+ * Pointer to the high level shutdown context.
+ */
+ struct ShutdownContext *shutdown_ctx;
+
+ /**
+ * The daemon handle for the peer to shut down.
+ */
+ struct GNUNET_TESTING_Daemon *daemon;
+};
+
+/**
+ * Individual shutdown context for a particular peer.
+ */
+struct PeerRestartContext
+{
+ /**
+ * Pointer to the high level restart context.
+ */
+ struct ChurnRestartContext *churn_restart_ctx;
-#define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 180)
+ /**
+ * The daemon handle for the peer to shut down.
+ */
+ struct GNUNET_TESTING_Daemon *daemon;
+};
+
+
+struct CreateTopologyContext
+{
+
+ /**
+ * Function to call with number of connections
+ */
+ GNUNET_TESTING_NotifyConnections cont;
+
+ /**
+ * Closure for connection notification
+ */
+ void *cls;
+};
+#if OLD
struct PeerConnection
{
/*
struct GNUNET_TESTING_Daemon *daemon;
};
+#endif
+
+struct InternalStartContext
+{
+ /**
+ * Pointer to peerdata
+ */
+ struct PeerData *peer;
+
+ /**
+ * Timeout for peer startup
+ */
+ struct GNUNET_TIME_Relative timeout;
+
+ /**
+ * Client callback for hostkey notification
+ */
+ GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback;
+
+ /**
+ * Closure for hostkey_callback
+ */
+ void *hostkey_cls;
+
+ /**
+ * Client callback for peer start notification
+ */
+ GNUNET_TESTING_NotifyDaemonRunning start_cb;
+
+ /**
+ * Closure for cb
+ */
+ void *start_cb_cls;
+
+ /**
+ * Hostname, where to start the peer
+ */
+ const char *hostname;
+
+ /**
+ * Username to use when connecting to the
+ * host via ssh.
+ */
+ const char *username;
+
+ /**
+ * Port to use for ssh.
+ */
+ uint16_t sshport;
+
+};
+
+struct ChurnRestartContext
+{
+ /**
+ * Number of restarts currently in flight.
+ */
+ unsigned int outstanding;
+
+ /**
+ * Handle to the underlying churn context.
+ */
+ struct ChurnContext *churn_ctx;
+
+ /**
+ * How long to allow the operation to take.
+ */
+ struct GNUNET_TIME_Relative timeout;
+};
/**
* Data we keep per peer.
*/
struct GNUNET_TESTING_Daemon *daemon;
- /*
- * Linked list of peer connections (simply indexes of PeerGroup)
- * FIXME: Question, store pointer or integer? Pointer for now...
+ /**
+ * The peergroup this peer belongs to.
+ */
+ struct GNUNET_TESTING_PeerGroup *pg;
+
+ /**
+ * Hash map of allowed peer connections (F2F created topology)
+ */
+ struct GNUNET_CONTAINER_MultiHashMap *allowed_peers;
+
+ /**
+ * Hash map of blacklisted peers
+ */
+ struct GNUNET_CONTAINER_MultiHashMap *blacklisted_peers;
+
+ /**
+ * Hash map of peer connections
+ */
+ struct GNUNET_CONTAINER_MultiHashMap *connect_peers;
+
+ /**
+ * Temporary hash map of peer connections
*/
- struct PeerConnection *connected_peers;
+ struct GNUNET_CONTAINER_MultiHashMap *connect_peers_working_set;
+
+ /**
+ * Temporary variable for topology creation, should be reset before
+ * creating any topology so the count is valid once finished.
+ */
+ int num_connections;
+
+ /**
+ * Context to keep track of peers being started, to
+ * stagger hostkey generation and peer startup.
+ */
+ struct InternalStartContext internal_context;
};
/**
- * Data we keep per host.
+ * Linked list of per-host data.
*/
struct HostData
{
*/
char *hostname;
+ /**
+ * SSH username to use when connecting to this host.
+ */
+ char *username;
+
+ /**
+ * SSH port to use when connecting to this host.
+ */
+ uint16_t sshport;
+
/**
* Lowest port that we have not yet used
* for GNUnet.
uint16_t minport;
};
+struct TopologyIterateContext
+{
+ /**
+ * Callback for notifying of two connected peers.
+ */
+ GNUNET_TESTING_NotifyTopology topology_cb;
+
+ /**
+ * Closure for topology_cb
+ */
+ void *cls;
+
+ /**
+ * Number of peers currently connected to.
+ */
+ unsigned int connected;
+
+ /**
+ * Number of peers we have finished iterating.
+ */
+ unsigned int completed;
+
+ /**
+ * Number of peers total.
+ */
+ unsigned int total;
+};
+
+struct StatsIterateContext
+{
+ /**
+ * Continuation to call once all stats information has been retrieved.
+ */
+ GNUNET_STATISTICS_Callback cont;
+
+ /**
+ * Proc function to call on each value received.
+ */
+ GNUNET_TESTING_STATISTICS_Iterator proc;
+
+ /**
+ * Closure for topology_cb
+ */
+ void *cls;
+
+ /**
+ * Number of peers currently connected to.
+ */
+ unsigned int connected;
+
+ /**
+ * Number of peers we have finished iterating.
+ */
+ unsigned int completed;
+
+ /**
+ * Number of peers total.
+ */
+ unsigned int total;
+};
+
+struct CoreContext
+{
+ void *iter_context;
+ struct GNUNET_TESTING_Daemon *daemon;
+};
+
+struct StatsCoreContext
+{
+ void *iter_context;
+ struct GNUNET_TESTING_Daemon *daemon;
+ /**
+ * Handle to the statistics service.
+ */
+ struct GNUNET_STATISTICS_Handle *stats_handle;
+
+ /**
+ * Handle for getting statistics.
+ */
+ struct GNUNET_STATISTICS_GetHandle *stats_get_handle;
+};
/**
* Handle to a group of GNUnet peers.
*/
struct GNUNET_TESTING_PeerGroup
{
- /**
- * Our scheduler.
- */
- struct GNUNET_SCHEDULER_Handle *sched;
-
/**
* Configuration template.
*/
/**
* Function to call on each started daemon.
*/
- GNUNET_TESTING_NotifyDaemonRunning cb;
+ //GNUNET_TESTING_NotifyDaemonRunning cb;
/**
* Closure for cb.
*/
- void *cb_cls;
+ //void *cb_cls;
/*
* Function to call on each topology connection created
void *notify_connection_cls;
/**
- * NULL-terminated array of information about
- * hosts.
+ * Array of information about hosts.
*/
struct HostData *hosts;
+ /**
+ * Number of hosts (size of HostData)
+ */
+ unsigned int num_hosts;
+
/**
* Array of "total" peers.
*/
*/
unsigned int total;
-};
+ /**
+ * At what time should we fail the peer startup process?
+ */
+ struct GNUNET_TIME_Absolute max_timeout;
+
+ /**
+ * How many peers are being started right now?
+ */
+ unsigned int starting;
+ /**
+ * How many peers have already been started?
+ */
+ unsigned int started;
+};
struct UpdateContext
{
struct GNUNET_CONFIGURATION_Handle *ret;
+ const struct GNUNET_CONFIGURATION_Handle *orig;
+ const char *hostname;
unsigned int nport;
+ unsigned int upnum;
+ unsigned int fdnum;
};
-/**
- * Function to iterate over options. Copies
- * the options to the target configuration,
- * updating PORT values as needed.
- *
- * @param cls closure
- * @param section name of the section
- * @param option name of the option
+struct ConnectTopologyContext
+{
+ /**
+ * How many connections are left to create.
+ */
+ unsigned int remaining_connections;
+
+ /**
+ * Handle to group of peers.
+ */
+ struct GNUNET_TESTING_PeerGroup *pg;
+
+ /**
+ * Temp value set for each iteration.
+ */
+ struct PeerData *first;
+
+ /**
+ * Notification that all peers are connected.
+ */
+ GNUNET_TESTING_NotifyCompletion notify_connections_done;
+
+ /**
+ * Closure for notify.
+ */
+ void *notify_cls;
+};
+
+struct ConnectContext
+{
+ /**
+ * Peer to connect second to.
+ */
+ struct GNUNET_TESTING_Daemon *first;
+
+ /**
+ * Peer to connect first to.
+ */
+ struct GNUNET_TESTING_Daemon *second;
+
+ /**
+ * Higher level topology connection context.
+ */
+ struct ConnectTopologyContext *ct_ctx;
+};
+
+/**
+ * Convert unique ID to hash code.
+ *
+ * @param uid unique ID to convert
+ * @param hash set to uid (extended with zeros)
+ */
+static void
+hash_from_uid (uint32_t uid, GNUNET_HashCode * hash)
+{
+ memset (hash, 0, sizeof (GNUNET_HashCode));
+ *((uint32_t *) hash) = uid;
+}
+
+/**
+ * Convert hash code to unique ID.
+ *
+ * @param uid unique ID to convert
+ * @param hash set to uid (extended with zeros)
+ */
+static void
+uid_from_hash (const GNUNET_HashCode * hash, uint32_t * uid)
+{
+ memcpy (uid, hash, sizeof (uint32_t));
+}
+
+/**
+ * Number of connects we are waiting on, allows us to rate limit
+ * connect attempts.
+ */
+static int outstanding_connects;
+
+/**
+ * Get a topology from a string input.
+ *
+ * @param topology where to write the retrieved topology
+ * @param topology_string The string to attempt to
+ * get a configuration value from
+ * @return GNUNET_YES if topology string matched a
+ * known topology, GNUNET_NO if not
+ */
+int
+GNUNET_TESTING_topology_get (enum GNUNET_TESTING_Topology *topology,
+ const char *topology_string)
+{
+ /**
+ * Strings representing topologies in enum
+ */
+ static const char *topology_strings[] = {
+ /**
+ * A clique (everyone connected to everyone else).
+ */
+ "CLIQUE",
+
+ /**
+ * Small-world network (2d torus plus random links).
+ */
+ "SMALL_WORLD",
+
+ /**
+ * Small-world network (ring plus random links).
+ */
+ "SMALL_WORLD_RING",
+
+ /**
+ * Ring topology.
+ */
+ "RING",
+
+ /**
+ * 2-d torus.
+ */
+ "2D_TORUS",
+
+ /**
+ * Random graph.
+ */
+ "ERDOS_RENYI",
+
+ /**
+ * Certain percentage of peers are unable to communicate directly
+ * replicating NAT conditions
+ */
+ "INTERNAT",
+
+ /**
+ * Scale free topology.
+ */
+ "SCALE_FREE",
+
+ /**
+ * Straight line topology.
+ */
+ "LINE",
+
+ /**
+ * All peers are disconnected.
+ */
+ "NONE",
+
+ NULL
+ };
+
+ int curr = 0;
+ if (topology_string == NULL)
+ return GNUNET_NO;
+ while (topology_strings[curr] != NULL)
+ {
+ if (strcasecmp (topology_strings[curr], topology_string) == 0)
+ {
+ *topology = curr;
+ return GNUNET_YES;
+ }
+ curr++;
+ }
+ *topology = GNUNET_TESTING_TOPOLOGY_NONE;
+ return GNUNET_NO;
+}
+
+
+/**
+ * Get connect topology option from string input.
+ *
+ * @param topology_option where to write the retrieved topology
+ * @param topology_string The string to attempt to
+ * get a configuration value from
+ * @return GNUNET_YES if string matched a known
+ * topology option, GNUNET_NO if not
+ */
+int
+GNUNET_TESTING_topology_option_get (enum GNUNET_TESTING_TopologyOption
+ *topology_option,
+ const char *topology_string)
+{
+ /**
+ * Options for connecting a topology as strings.
+ */
+ static const char *topology_option_strings[] = {
+ /**
+ * Try to connect all peers specified in the topology.
+ */
+ "CONNECT_ALL",
+
+ /**
+ * Choose a random subset of connections to create.
+ */
+ "CONNECT_RANDOM_SUBSET",
+
+ /**
+ * Create at least X connections for each peer.
+ */
+ "CONNECT_MINIMUM",
+
+ /**
+ * Using a depth first search, create one connection
+ * per peer. If any are missed (graph disconnected)
+ * start over at those peers until all have at least one
+ * connection.
+ */
+ "CONNECT_DFS",
+
+ /**
+ * Find the N closest peers to each allowed peer in the
+ * topology and make sure a connection to those peers
+ * exists in the connect topology.
+ */
+ "CONNECT_CLOSEST",
+
+ /**
+ * No options specified.
+ */
+ "CONNECT_NONE",
+
+ NULL
+ };
+ int curr = 0;
+
+ if (topology_string == NULL)
+ return GNUNET_NO;
+ while (NULL != topology_option_strings[curr])
+ {
+ if (strcasecmp (topology_option_strings[curr], topology_string) == 0)
+ {
+ *topology_option = curr;
+ return GNUNET_YES;
+ }
+ curr++;
+ }
+ *topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_NONE;
+ return GNUNET_NO;
+}
+
+/**
+ * Function to iterate over options. Copies
+ * the options to the target configuration,
+ * updating PORT values as needed.
+ *
+ * @param cls closure
+ * @param section name of the section
+ * @param option name of the option
* @param value value of the option
*/
static void
struct UpdateContext *ctx = cls;
unsigned int ival;
char cval[12];
+ char uval[128];
+ char *single_variable;
+ char *per_host_variable;
+ unsigned long long num_per_host;
if ((0 == strcmp (option, "PORT")) && (1 == sscanf (value, "%u", &ival)))
{
- GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
- value = cval;
+ GNUNET_asprintf (&single_variable, "single_%s_per_host", section);
+ if ((ival != 0)
+ && (GNUNET_YES !=
+ GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
+ single_variable)))
+ {
+ GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
+ value = cval;
+ }
+
+ GNUNET_free (single_variable);
+ }
+
+ if (0 == strcmp (option, "UNIXPATH"))
+ {
+ GNUNET_asprintf (&single_variable, "single_%s_per_host", section);
+ GNUNET_asprintf (&per_host_variable, "num_%s_per_host", section);
+ if (GNUNET_YES !=
+ GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
+ single_variable))
+ {
+ GNUNET_snprintf (uval,
+ sizeof (uval),
+ "/tmp/test-service-%s-%u", section, ctx->upnum++);
+ value = uval;
+ }
+ else if ((GNUNET_YES ==
+ GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing",
+ per_host_variable,
+ &num_per_host)) && (num_per_host > 0))
+
+ {
+ GNUNET_snprintf (uval,
+ sizeof (uval),
+ "/tmp/test-service-%s-%u",
+ section, ctx->fdnum % num_per_host);
+ value = uval;
+ }
+ GNUNET_free (single_variable);
+ GNUNET_free (per_host_variable);
+
+ }
+
+ if ((0 == strcmp (option, "HOSTNAME")) && (ctx->hostname != NULL))
+ {
+ value = ctx->hostname;
}
+
GNUNET_CONFIGURATION_set_value_string (ctx->ret, section, option, value);
}
* Create a new configuration using the given configuration
* as a template; however, each PORT in the existing cfg
* must be renumbered by incrementing "*port". If we run
- * out of "*port" numbers, return NULL.
- *
+ * out of "*port" numbers, return NULL.
+ *
* @param cfg template configuration
* @param port port numbers to use, update to reflect
* port numbers that were used
+ * @param upnum number to make unix domain socket names unique
+ * @param hostname hostname of the controlling host, to allow control connections from
+ * @param fdnum number used to offset the unix domain socket for grouped processes
+ * (such as statistics or peerinfo, which can be shared among others)
+ *
* @return new configuration, NULL on error
*/
static struct GNUNET_CONFIGURATION_Handle *
-make_config (const struct GNUNET_CONFIGURATION_Handle *cfg, uint16_t * port)
+make_config (const struct GNUNET_CONFIGURATION_Handle *cfg,
+ uint16_t * port,
+ uint32_t * upnum, const char *hostname, uint32_t * fdnum)
{
struct UpdateContext uc;
uint16_t orig;
+ char *control_host;
+ char *allowed_hosts;
orig = *port;
uc.nport = *port;
+ uc.upnum = *upnum;
+ uc.fdnum = *fdnum;
uc.ret = GNUNET_CONFIGURATION_create ();
+ uc.hostname = hostname;
+ uc.orig = cfg;
+
GNUNET_CONFIGURATION_iterate (cfg, &update_config, &uc);
if (uc.nport >= HIGH_PORT)
{
GNUNET_CONFIGURATION_destroy (uc.ret);
return NULL;
}
+
+ if (GNUNET_CONFIGURATION_get_value_string
+ (cfg, "testing", "control_host", &control_host) == GNUNET_OK)
+ {
+ if (hostname != NULL)
+ GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1; %s;", control_host,
+ hostname);
+ else
+ GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", control_host);
+
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "ACCEPT_FROM",
+ allowed_hosts);
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport",
+ "ACCEPT_FROM", allowed_hosts);
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "ACCEPT_FROM",
+ allowed_hosts);
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics",
+ "ACCEPT_FROM", allowed_hosts);
+ GNUNET_free_non_null (control_host);
+ GNUNET_free (allowed_hosts);
+ }
+
+
+ /* arm needs to know to allow connections from the host on which it is running,
+ * otherwise gnunet-arm is unable to connect to it in some instances */
+ if (hostname != NULL)
+ {
+ GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", hostname);
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
+ "BINDTO", hostname);
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
+ "BINDTO", hostname);
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "ACCEPT_FROM",
+ allowed_hosts);
+ GNUNET_free (allowed_hosts);
+ }
+ else
+ {
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
+ "BINDTO", "127.0.0.1");
+ GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
+ "BINDTO", "127.0.0.1");
+ }
+
*port = (uint16_t) uc.nport;
+ *upnum = uc.upnum;
+ uc.fdnum++;
+ *fdnum = uc.fdnum;
return uc.ret;
}
+
/*
- * Add entries to the peers connected list
+ * Add entries to the peers connect list
*
* @param pg the peer group we are working with
* @param first index of the first peer
* @param second index of the second peer
*
- * @return the number of connections added (can be 0 1 or 2)
+ * @return the number of connections added
+ * technically should only be 0 or 2
+ *
+ */
+static unsigned int
+add_actual_connections (struct GNUNET_TESTING_PeerGroup *pg,
+ unsigned int first, unsigned int second)
+{
+ int added;
+ int add_first;
+ int add_second;
+
+ GNUNET_HashCode hash_first;
+ GNUNET_HashCode hash_second;
+
+ hash_from_uid (first, &hash_first);
+ hash_from_uid (second, &hash_second);
+
+ add_first = GNUNET_NO;
+ if (GNUNET_NO ==
+ GNUNET_CONTAINER_multihashmap_contains (pg->peers[first].connect_peers,
+ &hash_second))
+ {
+ add_first = GNUNET_YES;
+ }
+
+ add_second = GNUNET_NO;
+ if (GNUNET_NO ==
+ GNUNET_CONTAINER_multihashmap_contains (pg->peers[second].connect_peers,
+ &hash_first))
+ {
+ add_second = GNUNET_YES;
+ }
+
+ added = 0;
+ if (add_first)
+ {
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (pg->
+ peers
+ [first].connect_peers,
+ &hash_second,
+ pg->
+ peers[second].daemon,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ pg->peers[first].num_connections++;
+ added++;
+ }
+
+ if (add_second)
+ {
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (pg->
+ peers
+ [second].connect_peers,
+ &hash_first,
+ pg->
+ peers[first].daemon,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ pg->peers[second].num_connections++;
+ added++;
+ }
+
+ return added;
+}
+
+
+/*
+ * Add entries to the peers allowed connections list
*
- * FIXME: add both, or only add one?
- * - if both are added, then we have to keep track
- * when connecting so we don't double connect
- * - if only one is added, we need to iterate over
- * both lists to find out if connection already exists
- * - having both allows the whitelisting/friend file
- * creation to be easier
+ * @param pg the peer group we are working with
+ * @param first index of the first peer
+ * @param second index of the second peer
*
- * -- For now, add both, we have to iterate over each to
- * check for duplicates anyways, so we'll take the performance
- * hit assuming we don't have __too__ many connections
+ * @return the number of connections added (can be 0, 1 or 2)
+ * technically should only be 0 or 2, but the small price
+ * of iterating over the lists (hashmaps in the future)
+ * for being sure doesn't bother me!
*
*/
-static int
-add_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
+static unsigned int
+add_allowed_connections (struct GNUNET_TESTING_PeerGroup *pg,
+ unsigned int first, unsigned int second)
{
int added;
+#if OLD
struct PeerConnection *first_iter;
struct PeerConnection *second_iter;
- int add_first;
- int add_second;
struct PeerConnection *new_first;
struct PeerConnection *new_second;
+#endif
+ int add_first;
+ int add_second;
+
+ GNUNET_HashCode hash_first;
+ GNUNET_HashCode hash_second;
+
+ hash_from_uid (first, &hash_first);
+ hash_from_uid (second, &hash_second);
+
+ add_first = GNUNET_NO;
+ if (GNUNET_NO ==
+ GNUNET_CONTAINER_multihashmap_contains (pg->peers[first].allowed_peers,
+ &hash_second))
+ {
+ add_first = GNUNET_YES;
+ }
+ add_second = GNUNET_NO;
+ if (GNUNET_NO ==
+ GNUNET_CONTAINER_multihashmap_contains (pg->peers[second].allowed_peers,
+ &hash_first))
+ {
+ add_second = GNUNET_YES;
+ }
+#if OLD
first_iter = pg->peers[first].connected_peers;
- add_first = GNUNET_YES;
while (first_iter != NULL)
{
if (first_iter->daemon == pg->peers[second].daemon)
add_second = GNUNET_NO;
second_iter = second_iter->next;
}
+#endif
added = 0;
if (add_first)
{
- new_first = GNUNET_malloc(sizeof(struct PeerConnection));
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (pg->
+ peers
+ [first].allowed_peers,
+ &hash_second,
+ pg->
+ peers[second].daemon,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+#if OLD
+ new_first = GNUNET_malloc (sizeof (struct PeerConnection));
new_first->daemon = pg->peers[second].daemon;
new_first->next = pg->peers[first].connected_peers;
pg->peers[first].connected_peers = new_first;
+#endif
+ pg->peers[first].num_connections++;
added++;
}
if (add_second)
{
- new_second = GNUNET_malloc(sizeof(struct PeerConnection));
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (pg->
+ peers
+ [second].allowed_peers,
+ &hash_first,
+ pg->
+ peers[first].daemon,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+#if OLD
+ new_second = GNUNET_malloc (sizeof (struct PeerConnection));
new_second->daemon = pg->peers[first].daemon;
new_second->next = pg->peers[second].connected_peers;
pg->peers[second].connected_peers = new_second;
+ pg->peers[first].num_connections++;
+#endif
+ pg->peers[second].num_connections++;
added++;
}
return added;
}
-int
-create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg)
+/*
+ * Add entries to the peers blacklisted list
+ *
+ * @param pg the peer group we are working with
+ * @param first index of the first peer
+ * @param second index of the second peer
+ *
+ * @return the number of connections added (can be 0, 1 or 2)
+ *
+ */
+static unsigned int
+blacklist_connections (struct GNUNET_TESTING_PeerGroup *pg,
+ unsigned int first, unsigned int second)
+{
+ int added;
+ int add_first;
+ int add_second;
+ GNUNET_HashCode hash_first;
+ GNUNET_HashCode hash_second;
+
+ hash_from_uid (first, &hash_first);
+ hash_from_uid (second, &hash_second);
+
+ add_first = GNUNET_NO;
+ if (GNUNET_NO ==
+ GNUNET_CONTAINER_multihashmap_contains (pg->
+ peers[first].blacklisted_peers,
+ &hash_second))
+ {
+ add_first = GNUNET_YES;
+ }
+
+ add_second = GNUNET_NO;
+ if (GNUNET_NO ==
+ GNUNET_CONTAINER_multihashmap_contains (pg->
+ peers[second].blacklisted_peers,
+ &hash_first))
+ {
+ add_second = GNUNET_YES;
+ }
+
+ added = 0;
+ if (add_first)
+ {
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (pg->
+ peers
+ [first].blacklisted_peers,
+ &hash_second,
+ pg->
+ peers[second].daemon,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ pg->peers[first].num_connections++;
+ added++;
+ }
+
+ if (add_second)
+ {
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (pg->
+ peers
+ [second].blacklisted_peers,
+ &hash_first,
+ pg->
+ peers[first].daemon,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ pg->peers[second].num_connections++;
+ added++;
+ }
+
+ return added;
+}
+
+/*
+ * Remove entries from the peers blacklisted list
+ *
+ * @param pg the peer group we are working with
+ * @param first index of the first peer
+ * @param second index of the second peer
+ *
+ * @return the number of connections removed (can be 0, 1 or 2)
+ *
+ */
+static unsigned int
+unblacklist_connections (struct GNUNET_TESTING_PeerGroup *pg,
+ unsigned int first, unsigned int second)
+{
+ int removed;
+ int remove_first;
+ int remove_second;
+ GNUNET_HashCode hash_first;
+ GNUNET_HashCode hash_second;
+
+ hash_from_uid (first, &hash_first);
+ hash_from_uid (second, &hash_second);
+
+ remove_first =
+ GNUNET_CONTAINER_multihashmap_contains (pg->
+ peers[first].blacklisted_peers,
+ &hash_second);
+ remove_second =
+ GNUNET_CONTAINER_multihashmap_contains (pg->
+ peers[second].blacklisted_peers,
+ &hash_first);
+
+ removed = 0;
+ if (remove_first)
+ {
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_remove (pg->
+ peers
+ [first].blacklisted_peers,
+ &hash_second,
+ pg->
+ peers
+ [second].daemon));
+ removed++;
+ }
+
+ if (remove_second)
+ {
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_remove (pg->
+ peers
+ [second].blacklisted_peers,
+ &hash_first,
+ pg->
+ peers
+ [first].daemon));
+ removed++;
+ }
+
+ return removed;
+}
+
+/**
+ * Scale free network construction as described in:
+ *
+ * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
+ *
+ * Start with a network of "one" peer, then progressively add
+ * peers up to the total number. At each step, iterate over
+ * all possible peers and connect new peer based on number of
+ * existing connections of the target peer.
+ *
+ * @param pg the peer group we are dealing with
+ * @param proc the connection processor to use
+ *
+ * @return the number of connections created
+ */
+static unsigned int
+create_scale_free (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
+{
+
+ unsigned int total_connections;
+ unsigned int outer_count;
+ unsigned int i;
+ unsigned int previous_total_connections;
+ double random;
+ double probability;
+
+ GNUNET_assert (pg->total > 1);
+
+ /* Add a connection between the first two nodes */
+ total_connections = proc (pg, 0, 1);
+
+ for (outer_count = 1; outer_count < pg->total; outer_count++)
+ {
+ previous_total_connections = total_connections;
+ for (i = 0; i < outer_count; i++)
+ {
+ probability =
+ pg->peers[i].num_connections /
+ (double) previous_total_connections;
+ random =
+ ((double)
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+ UINT64_MAX)) / ((double) UINT64_MAX);
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Considering connecting peer %d to peer %d\n",
+ outer_count, i);
+#endif
+ if (random < probability)
+ {
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connecting peer %d to peer %d\n", outer_count, i);
+#endif
+ total_connections += proc (pg, outer_count, i);
+ }
+ }
+ }
+
+ return total_connections;
+}
+
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ * up connections between two peers
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_small_world_ring (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int i, j;
int nodeToConnect;
int min;
unsigned int useAnd;
int connect_attempts;
- struct GNUNET_TIME_Absolute time;
-
- GNUNET_CONFIGURATION_get_value_string(pg->cfg, "TESTING", "LOGNMODIFIER", &p_string);
- if (p_string != NULL)
- logNModifier = atof(p_string);
- else
- logNModifier = 0.5; /* FIXME: default modifier? */
-
- GNUNET_free_non_null(p_string);
-
- GNUNET_CONFIGURATION_get_value_string(pg->cfg, "TESTING", "PERCENTAGE", &p_string);
- if (p_string != NULL)
- percentage = atof(p_string);
- else
- percentage = 0.5; /* FIXME: default percentage? */
-
- GNUNET_free_non_null(p_string);
+ logNModifier = 0.5; /* FIXME: default value? */
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg,
+ "TESTING",
+ "LOGNMODIFIER",
+ &p_string))
+ {
+ if (sscanf (p_string, "%lf", &logNModifier) != 1)
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+ p_string, "LOGNMODIFIER", "TESTING");
+ GNUNET_free (p_string);
+ }
+ percentage = 0.5; /* FIXME: default percentage? */
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg,
+ "TESTING",
+ "PERCENTAGE",
+ &p_string))
+ {
+ if (sscanf (p_string, "%lf", &percentage) != 1)
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+ p_string, "PERCENTAGE", "TESTING");
+ GNUNET_free (p_string);
+ }
natLog = log (pg->total);
connsPerPeer = ceil (natLog * logNModifier);
if (connsPerPeer % 2 == 1)
connsPerPeer += 1;
- time = GNUNET_TIME_absolute_get ();
- srand ((unsigned int) time.value);
smallWorldConnections = 0;
connect_attempts = 0;
for (i = 0; i < pg->total; i++)
for (j = 0; j < connsPerPeer / 2; j++)
{
- random = ((double) rand () / RAND_MAX);
+ random =
+ ((double)
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+ UINT64_MAX) / ((double) UINT64_MAX));
if (random < percentage)
{
/* Connect to uniformly selected random peer */
randomPeer =
GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
- pg->total);
+ pg->total);
while ((((randomPeer < max) && (randomPeer > min))
&& (useAnd == 0)) || (((randomPeer > min)
|| (randomPeer < max))
&& (useAnd == 1)))
{
randomPeer =
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
- pg->total);
+ GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+ pg->total);
}
- smallWorldConnections +=
- add_connections (pg, i, randomPeer);
+ smallWorldConnections += proc (pg, i, randomPeer);
}
else
{
{
nodeToConnect = nodeToConnect - pg->total;
}
- connect_attempts +=
- add_connections (pg, i, nodeToConnect);
+ connect_attempts += proc (pg, i, nodeToConnect);
}
}
connect_attempts += smallWorldConnections;
- return GNUNET_OK;
+ return connect_attempts;
}
-
-static int
-create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg)
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ * up connections between two peers
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int outer_count, inner_count;
unsigned int cutoff;
double nat_percentage;
char *p_string;
- GNUNET_CONFIGURATION_get_value_string(pg->cfg, "TESTING", "NATPERCENTAGE", &p_string);
- if (p_string != NULL)
- nat_percentage = atof(p_string);
- else
- nat_percentage = 0.0; /* FIXME: default modifier? */
+ nat_percentage = 0.6; /* FIXME: default percentage? */
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg,
+ "TESTING",
+ "PERCENTAGE",
+ &p_string))
+ {
+ if (sscanf (p_string, "%lf", &nat_percentage) != 1)
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+ p_string, "PERCENTAGE", "TESTING");
+ GNUNET_free (p_string);
+ }
+
- GNUNET_free_non_null(p_string);
cutoff = (unsigned int) (nat_percentage * pg->total);
"Connecting peer %d to peer %d\n",
outer_count, inner_count);
#endif
- connect_attempts += add_connections(pg, outer_count, inner_count);
+ connect_attempts += proc (pg, outer_count, inner_count);
}
}
}
}
-
-
-static int
-create_small_world (struct GNUNET_TESTING_PeerGroup *pg)
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ * up connections between two peers
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_small_world (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int i, j, k;
unsigned int square;
unsigned int distance;
double probability, random, percentage;
unsigned int smallWorldConnections;
+ unsigned int small_world_it;
char *p_string;
int connect_attempts;
square = floor (sqrt (pg->total));
rows = square;
cols = square;
- GNUNET_CONFIGURATION_get_value_string(pg->cfg, "TESTING", "PERCENTAGE", &p_string);
- if (p_string != NULL)
- percentage = atof(p_string);
- else
- percentage = 0.5; /* FIXME: default percentage? */
-
- GNUNET_free_non_null(p_string);
-
- GNUNET_CONFIGURATION_get_value_string(pg->cfg, "TESTING", "PROBABILITY", &p_string);
- if (p_string != NULL)
- probability = atof(p_string);
- else
- probability = 0.5; /* FIXME: default probability? */
-
- GNUNET_free_non_null(p_string);
-
+ percentage = 0.5; /* FIXME: default percentage? */
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg,
+ "TESTING",
+ "PERCENTAGE",
+ &p_string))
+ {
+ if (sscanf (p_string, "%lf", &percentage) != 1)
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+ p_string, "PERCENTAGE", "TESTING");
+ GNUNET_free (p_string);
+ }
+ if (percentage < 0.0)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
+ "PERCENTAGE", "TESTING", percentage);
+ percentage = 0.5;
+ }
+ probability = 0.5; /* FIXME: default percentage? */
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg,
+ "TESTING",
+ "PROBABILITY",
+ &p_string))
+ {
+ if (sscanf (p_string, "%lf", &probability) != 1)
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+ p_string, "PROBABILITY", "TESTING");
+ GNUNET_free (p_string);
+ }
if (square * square != pg->total)
{
while (rows * cols < pg->total)
}
}
#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
- rows, cols);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
+ rows, cols);
#endif
connect_attempts = 0;
else
nodeToConnect = i - cols + 1;
- connect_attempts += add_connections (pg, i, nodeToConnect);
+ connect_attempts += proc (pg, i, nodeToConnect);
if (i < cols)
nodeToConnect = (rows * cols) - cols + i;
nodeToConnect = i - cols;
if (nodeToConnect < pg->total)
- connect_attempts += add_connections (pg, i, nodeToConnect);
+ connect_attempts += proc (pg, i, nodeToConnect);
}
natLog = log (pg->total);
-#if VERBOSE_TESTING
+#if VERBOSE_TESTING > 2
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
_("natural log of %d is %d, will run %d iterations\n"),
- pg->total, natLog, (int) (natLog * percentage));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Total connections added thus far: %u!\n"), connect_attempts);
+ pg->total, natLog, (int) (natLog * percentage));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Total connections added thus far: %u!\n"), connect_attempts);
#endif
smallWorldConnections = 0;
- for (i = 0; i < (int) (natLog * percentage); i++)
+ small_world_it = (unsigned int) (natLog * percentage);
+ if (small_world_it < 1)
+ small_world_it = 1;
+ GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
+ for (i = 0; i < small_world_it; i++)
{
for (j = 0; j < pg->total; j++)
{
node2Row = k / cols;
node2Col = k - (node2Row * cols);
/* Simple Cartesian distance */
- distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
+ distance =
+ abs (node1Row - node2Row) + abs (node1Col - node2Col);
if (distance > 1)
{
/* Calculate probability as 1 over the square of the distance */
probability = 1.0 / (distance * distance);
- /* Choose a random, divide by RAND_MAX to get a number between 0 and 1 */
- random = ((double) rand () / RAND_MAX);
+ /* Choose a random value between 0 and 1 */
+ random =
+ ((double)
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+ UINT64_MAX)) /
+ ((double) UINT64_MAX);
/* If random < probability, then connect the two nodes */
if (random < probability)
- smallWorldConnections += add_connections (pg, j, k);
+ smallWorldConnections += proc (pg, j, k);
}
}
}
}
connect_attempts += smallWorldConnections;
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Total connections added for small world: %d!\n"),
- smallWorldConnections);
+#if VERBOSE_TESTING > 2
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Total connections added for small world: %d!\n"),
+ smallWorldConnections);
#endif
- return GNUNET_OK;
+ return connect_attempts;
}
-
-
-static int
-create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg)
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ * up connections between two peers
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
{
double temp_rand;
unsigned int outer_count;
int connect_attempts;
double probability;
char *p_string;
- connect_attempts = 0;
- probability = GNUNET_CONFIGURATION_get_value_string(pg->cfg, "TESTING", "PROBABILITY", &p_string);
- if (p_string != NULL)
- {
- probability = atof(p_string);
- }
- else
+ probability = 0.5; /* FIXME: default percentage? */
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg,
+ "TESTING",
+ "PROBABILITY",
+ &p_string))
{
- probability = 0.0; /* FIXME: default probability? */
+ if (sscanf (p_string, "%lf", &probability) != 1)
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+ p_string, "PROBABILITY", "TESTING");
+ GNUNET_free (p_string);
}
+ connect_attempts = 0;
for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
{
for (inner_count = outer_count + 1; inner_count < pg->total;
inner_count++)
{
- temp_rand = ((double) RANDOM () / RAND_MAX);
+ temp_rand =
+ ((double)
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+ UINT64_MAX)) / ((double) UINT64_MAX);
#if VERBOSE_TESTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
_("rand is %f probability is %f\n"), temp_rand,
#endif
if (temp_rand < probability)
{
- connect_attempts += add_connections (pg, outer_count, inner_count);
+ connect_attempts += proc (pg, outer_count, inner_count);
}
}
}
return connect_attempts;
}
-static int
-create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg)
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor. This particular function creates
+ * the connections for a 2d-torus, plus additional "closest"
+ * connections per peer.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ * up connections between two peers
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int i;
unsigned int square;
}
}
#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
- rows, cols);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
+ rows, cols);
#endif
/* Rows and columns are all sorted out, now iterate over all nodes and connect each
* to the node to its right and above. Once this is over, we'll have our torus!
else
nodeToConnect = i - cols + 1;
#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Connecting peer %d to peer %d\n",
- i, nodeToConnect);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connecting peer %d to peer %d\n", i, nodeToConnect);
#endif
- connect_attempts += add_connections(pg, i, nodeToConnect);
+ connect_attempts += proc (pg, i, nodeToConnect);
/* Second connect to the node immediately above */
if (i < cols)
{
#if VERBOSE_TESTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Connecting peer %d to peer %d\n",
- i, nodeToConnect);
+ "Connecting peer %d to peer %d\n", i, nodeToConnect);
#endif
- connect_attempts += add_connections(pg, i, nodeToConnect);
+ connect_attempts += proc (pg, i, nodeToConnect);
}
}
}
-
-static int
-create_clique (struct GNUNET_TESTING_PeerGroup *pg)
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ * up connections between two peers
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_clique (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int outer_count;
unsigned int inner_count;
"Connecting peer %d to peer %d\n",
outer_count, inner_count);
#endif
- connect_attempts += add_connections(pg, outer_count, inner_count);
+ connect_attempts += proc (pg, outer_count, inner_count);
}
}
return connect_attempts;
}
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ * up connections between two peers
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_line (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
+{
+ unsigned int count;
+ int connect_attempts;
+
+ connect_attempts = 0;
-static int
-create_ring (struct GNUNET_TESTING_PeerGroup *pg)
+ /* Connect each peer to the next highest numbered peer */
+ for (count = 0; count < pg->total - 1; count++)
+ {
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connecting peer %d to peer %d\n", count, count + 1);
+#endif
+ connect_attempts += proc (pg, count, count + 1);
+ }
+
+ return connect_attempts;
+}
+
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ * up connections between two peers
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_ring (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int count;
int connect_attempts;
for (count = 0; count < pg->total - 1; count++)
{
#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Connecting peer %d to peer %d\n",
- count, count + 1);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connecting peer %d to peer %d\n", count, count + 1);
#endif
- connect_attempts += add_connections(pg, count, count + 1);
+ connect_attempts += proc (pg, count, count + 1);
}
/* Connect the last peer to the first peer */
- connect_attempts += add_connections(pg, pg->total - 1, 0);
+ connect_attempts += proc (pg, pg->total - 1, 0);
return connect_attempts;
}
+/**
+ * Iterator for writing friends of a peer to a file.
+ *
+ * @param cls closure, an open writable file handle
+ * @param key the key the daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that needs to be written.
+ *
+ * @return GNUNET_YES to continue iteration
+ *
+ * TODO: Could replace friend_file_iterator and blacklist_file_iterator
+ * with a single file_iterator that takes a closure which contains
+ * the prefix to write before the peer. Then this could be used
+ * for blacklisting multiple transports and writing the friend
+ * file. I'm sure *someone* will complain loudly about other
+ * things that negate these functions even existing so no point in
+ * "fixing" now.
+ */
+static int
+friend_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ FILE *temp_friend_handle = cls;
+ struct GNUNET_TESTING_Daemon *peer = value;
+ struct GNUNET_PeerIdentity *temppeer;
+ struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
+
+ temppeer = &peer->id;
+ GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
+ fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
+
+ return GNUNET_YES;
+}
+
+struct BlacklistContext
+{
+ /*
+ * The (open) file handle to write to
+ */
+ FILE *temp_file_handle;
+
+ /*
+ * The transport that this peer will be blacklisted on.
+ */
+ char *transport;
+};
+
+/**
+ * Iterator for writing blacklist data to appropriate files.
+ *
+ * @param cls closure, an open writable file handle
+ * @param key the key the daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that needs to be written.
+ *
+ * @return GNUNET_YES to continue iteration
+ */
+static int
+blacklist_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct BlacklistContext *blacklist_ctx = cls;
+ //FILE *temp_blacklist_handle = cls;
+ struct GNUNET_TESTING_Daemon *peer = value;
+ struct GNUNET_PeerIdentity *temppeer;
+ struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
+
+ temppeer = &peer->id;
+ GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
+ fprintf (blacklist_ctx->temp_file_handle, "%s:%s\n",
+ blacklist_ctx->transport, (char *) &peer_enc);
+
+ return GNUNET_YES;
+}
+
/*
* Create the friend files based on the PeerConnection's
* of each peer in the peer group, and copy the files
*
* @param pg the peer group we are dealing with
*/
-static void
+static int
create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
{
FILE *temp_friend_handle;
unsigned int pg_iter;
- struct PeerConnection *connection_iter;
- struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
char *temp_service_path;
- pid_t pid;
+ struct GNUNET_OS_Process **procarr;
char *arg;
- struct GNUNET_PeerIdentity *temppeer;
- const char * mytemp;
+ char *mytemp;
+ enum GNUNET_OS_ProcessStatusType type;
+ unsigned long return_code;
+ int count;
+ int ret;
+ int max_wait = 10;
+ procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
{
- mytemp = GNUNET_DISK_mktemp("friends");
+ mytemp = GNUNET_DISK_mktemp ("friends");
+ GNUNET_assert (mytemp != NULL);
temp_friend_handle = fopen (mytemp, "wt");
- connection_iter = pg->peers[pg_iter].connected_peers;
- while (connection_iter != NULL)
- {
- temppeer = &connection_iter->daemon->id;
- GNUNET_CRYPTO_hash_to_enc(&temppeer->hashPubKey, &peer_enc);
- fprintf(temp_friend_handle, "%s\n", (char *)&peer_enc);
- connection_iter = connection_iter->next;
- }
-
- fclose(temp_friend_handle);
-
- GNUNET_CONFIGURATION_get_value_string(pg->peers[pg_iter].daemon->cfg, "PATHS", "SERVICEHOME", &temp_service_path);
-
- if (temp_service_path == NULL)
+ GNUNET_assert (temp_friend_handle != NULL);
+ GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
+ &friend_file_iterator,
+ temp_friend_handle);
+ fclose (temp_friend_handle);
+
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].
+ daemon->cfg, "PATHS",
+ "SERVICEHOME",
+ &temp_service_path))
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("No SERVICEHOME specified in peer configuration, can't copy friends file!\n"));
- fclose(temp_friend_handle);
- unlink(mytemp);
+ _
+ ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
+ "SERVICEHOME", "PATHS");
+ if (UNLINK (mytemp) != 0)
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
+ mytemp);
+ GNUNET_free (mytemp);
break;
}
- if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
+ if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
{
GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
- pid = GNUNET_OS_start_process ("mv",
- "mv", mytemp, arg, NULL);
+ procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv",
+ "mv", mytemp, arg,
+ NULL);
#if VERBOSE_TESTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
_("Copying file with command cp %s %s\n"), mytemp, arg);
#endif
- GNUNET_free(arg);
+
+ GNUNET_free (arg);
}
- else /* Remote, scp the file to the correct place */
+ else /* Remote, scp the file to the correct place */
{
if (NULL != pg->peers[pg_iter].daemon->username)
- GNUNET_asprintf (&arg, "%s@%s:%s/friends", pg->peers[pg_iter].daemon->username, pg->peers[pg_iter].daemon->hostname, temp_service_path);
+ GNUNET_asprintf (&arg, "%s@%s:%s/friends",
+ pg->peers[pg_iter].daemon->username,
+ pg->peers[pg_iter].daemon->hostname,
+ temp_service_path);
else
- GNUNET_asprintf (&arg, "%s:%s/friends", pg->peers[pg_iter].daemon->hostname, temp_service_path);
- pid = GNUNET_OS_start_process ("scp",
- "scp", mytemp, arg, NULL);
+ GNUNET_asprintf (&arg, "%s:%s/friends",
+ pg->peers[pg_iter].daemon->hostname,
+ temp_service_path);
+ procarr[pg_iter] =
+ GNUNET_OS_start_process (NULL, NULL, "scp", "scp", mytemp, arg,
+ NULL);
+
#if VERBOSE_TESTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Copying file with command scp %s %s\n"), mytemp, arg);
+ _("Copying file with command scp %s %s\n"), mytemp,
+ arg);
#endif
- GNUNET_free(arg);
+ GNUNET_free (arg);
}
+ GNUNET_free (temp_service_path);
+ GNUNET_free (mytemp);
+ }
+ count = 0;
+ ret = GNUNET_SYSERR;
+ while ((count < max_wait) && (ret != GNUNET_OK))
+ {
+ ret = GNUNET_OK;
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Checking copy status of file %d\n"), pg_iter);
+#endif
+ if (procarr[pg_iter] != NULL) /* Check for already completed! */
+ {
+ if (GNUNET_OS_process_status
+ (procarr[pg_iter], &type, &return_code) != GNUNET_OK)
+ {
+ ret = GNUNET_SYSERR;
+ }
+ else if ((type != GNUNET_OS_PROCESS_EXITED)
+ || (return_code != 0))
+ {
+ ret = GNUNET_SYSERR;
+ }
+ else
+ {
+ GNUNET_OS_process_close (procarr[pg_iter]);
+ procarr[pg_iter] = NULL;
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("File %d copied\n"), pg_iter);
+#endif
+ }
+ }
+ }
+ count++;
+ if (ret == GNUNET_SYSERR)
+ {
+ /* FIXME: why sleep here? -CG */
+ sleep (1);
+ }
}
-}
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Finished copying all friend files!\n"));
+#endif
+ GNUNET_free (procarr);
+ return ret;
+}
/*
- * Connect the topology as specified by the PeerConnection's
- * of each peer in the peer group
+ * Create the blacklist files based on the PeerConnection's
+ * of each peer in the peer group, and copy the files
+ * to the appropriate place.
*
* @param pg the peer group we are dealing with
+ * @param transports space delimited list of transports to blacklist
*/
-static void
-connect_topology (struct GNUNET_TESTING_PeerGroup *pg)
+static int
+create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg,
+ const char *transports)
{
+ FILE *temp_file_handle;
+ static struct BlacklistContext blacklist_ctx;
unsigned int pg_iter;
- struct PeerConnection *connection_iter;
+ char *temp_service_path;
+ struct GNUNET_OS_Process **procarr;
+ char *arg;
+ char *mytemp;
+ enum GNUNET_OS_ProcessStatusType type;
+ unsigned long return_code;
+ int count;
+ int ret;
+ int max_wait = 10;
+ int transport_len;
+ unsigned int i;
+ char *pos;
+ char *temp_transports;
+ procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
{
- connection_iter = pg->peers[pg_iter].connected_peers;
- while (connection_iter != NULL)
+ mytemp = GNUNET_DISK_mktemp ("blacklist");
+ GNUNET_assert (mytemp != NULL);
+ temp_file_handle = fopen (mytemp, "wt");
+ GNUNET_assert (temp_file_handle != NULL);
+ temp_transports = GNUNET_strdup (transports);
+ blacklist_ctx.temp_file_handle = temp_file_handle;
+ transport_len = strlen (temp_transports) + 1;
+ pos = NULL;
+
+ for (i = 0; i < transport_len; i++)
{
- GNUNET_TESTING_daemons_connect (pg->peers[pg_iter].daemon,
- connection_iter->daemon,
- CONNECT_TIMEOUT,
- pg->notify_connection,
- pg->notify_connection_cls);
- connection_iter = connection_iter->next;
+ if ((temp_transports[i] == ' ') && (pos == NULL))
+ continue; /* At start of string (whitespace) */
+ else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
+ {
+ temp_transports[i] = '\0';
+ blacklist_ctx.transport = pos;
+ GNUNET_CONTAINER_multihashmap_iterate (pg->
+ peers
+ [pg_iter].blacklisted_peers,
+ &blacklist_file_iterator,
+ &blacklist_ctx);
+ pos = NULL;
+ } /* At beginning of actual string */
+ else if (pos == NULL)
+ {
+ pos = &temp_transports[i];
+ }
}
- }
-}
-
-/*
- * Takes a peer group and attempts to create a topology based on the
- * one specified in the configuration file. Returns the number of connections
- * that will attempt to be created, but this will happen asynchronously(?) so
- * the caller will have to keep track (via the callback) of whether or not
- * the connection actually happened.
- *
- * @param pg the peer group struct representing the running peers
- *
- */
-int
-GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg)
-{
- unsigned long long topology_num;
- int ret;
+ GNUNET_free (temp_transports);
+ fclose (temp_file_handle);
- GNUNET_assert (pg->notify_connection != NULL);
- ret = 0;
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_number (pg->cfg, "testing", "topology",
- &topology_num))
- {
- switch (topology_num)
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].
+ daemon->cfg, "PATHS",
+ "SERVICEHOME",
+ &temp_service_path))
{
- case GNUNET_TESTING_TOPOLOGY_CLIQUE:
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating clique topology (may take a bit!)\n"));
-#endif
- ret = create_clique (pg);
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
+ "SERVICEHOME", "PATHS");
+ if (UNLINK (mytemp) != 0)
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
+ mytemp);
+ GNUNET_free (mytemp);
break;
- case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
+ }
+
+ if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
+ {
+ GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
+ procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv",
+ "mv", mytemp, arg,
+ NULL);
#if VERBOSE_TESTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating small world (ring) topology (may take a bit!)\n"));
+ _("Copying file with command cp %s %s\n"), mytemp, arg);
#endif
- ret = create_small_world_ring (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
+
+ GNUNET_free (arg);
+ }
+ else /* Remote, scp the file to the correct place */
+ {
+ if (NULL != pg->peers[pg_iter].daemon->username)
+ GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
+ pg->peers[pg_iter].daemon->username,
+ pg->peers[pg_iter].daemon->hostname,
+ temp_service_path);
+ else
+ GNUNET_asprintf (&arg, "%s:%s/blacklist",
+ pg->peers[pg_iter].daemon->hostname,
+ temp_service_path);
+ procarr[pg_iter] =
+ GNUNET_OS_start_process (NULL, NULL, "scp", "scp", mytemp, arg,
+ NULL);
+
#if VERBOSE_TESTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating small world (2d-torus) topology (may take a bit!)\n"));
+ _("Copying file with command scp %s %s\n"), mytemp,
+ arg);
#endif
- ret = create_small_world (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_RING:
+ GNUNET_free (arg);
+ }
+ GNUNET_free (temp_service_path);
+ GNUNET_free (mytemp);
+ }
+
+ count = 0;
+ ret = GNUNET_SYSERR;
+ while ((count < max_wait) && (ret != GNUNET_OK))
+ {
+ ret = GNUNET_OK;
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
#if VERBOSE_TESTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating ring topology (may take a bit!)\n"));
+ _("Checking copy status of file %d\n"), pg_iter);
#endif
- ret = create_ring (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
+ if (procarr[pg_iter] != NULL) /* Check for already completed! */
+ {
+ if (GNUNET_OS_process_status
+ (procarr[pg_iter], &type, &return_code) != GNUNET_OK)
+ {
+ ret = GNUNET_SYSERR;
+ }
+ else if ((type != GNUNET_OS_PROCESS_EXITED)
+ || (return_code != 0))
+ {
+ ret = GNUNET_SYSERR;
+ }
+ else
+ {
+ GNUNET_OS_process_close (procarr[pg_iter]);
+ procarr[pg_iter] = NULL;
#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating 2d torus topology (may take a bit!)\n"));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("File %d copied\n"), pg_iter);
#endif
- ret = create_2d_torus (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
+ }
+ }
+ }
+ count++;
+ if (ret == GNUNET_SYSERR)
+ {
+ /* FIXME: why sleep here? -CG */
+ sleep (1);
+ }
+ }
+
#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating Erdos-Renyi topology (may take a bit!)\n"));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Finished copying all blacklist files!\n"));
#endif
- ret = create_erdos_renyi (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_INTERNAT:
+ GNUNET_free (procarr);
+ return ret;
+}
+
+
+/**
+ * Internal notification of a connection, kept so that we can ensure some connections
+ * happen instead of flooding all testing daemons with requests to connect.
+ */
+static void
+internal_connect_notify (void *cls,
+ const struct GNUNET_PeerIdentity *first,
+ const struct GNUNET_PeerIdentity *second,
+ uint32_t distance,
+ const struct GNUNET_CONFIGURATION_Handle *first_cfg,
+ const struct GNUNET_CONFIGURATION_Handle *second_cfg,
+ struct GNUNET_TESTING_Daemon *first_daemon,
+ struct GNUNET_TESTING_Daemon *second_daemon,
+ const char *emsg)
+{
+ struct ConnectTopologyContext *ct_ctx = cls;
+ struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
+ outstanding_connects--;
+ ct_ctx->remaining_connections--;
+ if (ct_ctx->remaining_connections == 0)
+ {
+ if (ct_ctx->notify_connections_done != NULL)
+ ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
+ GNUNET_free (ct_ctx);
+ }
+
+ if (pg->notify_connection != NULL)
+ pg->notify_connection (pg->notify_connection_cls, first, second, distance,
+ first_cfg, second_cfg, first_daemon, second_daemon,
+ emsg);
+}
+
+
+/**
+ * Either delay a connection (because there are too many outstanding)
+ * or schedule it for right now.
+ *
+ * @param cls a connection context
+ * @param tc the task runtime context
+ */
+static void
+schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct ConnectContext *connect_context = cls;
+
+ if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ return;
+
+ if (outstanding_connects > MAX_OUTSTANDING_CONNECTIONS)
+ {
+#if VERBOSE_TESTING > 2
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Delaying connect, we have too many outstanding connections!\n"));
+#endif
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+ &schedule_connect, connect_context);
+ }
+ else
+ {
+#if VERBOSE_TESTING > 2
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating connection, outstanding_connections is %d\n"),
+ outstanding_connects);
+#endif
+ outstanding_connects++;
+ GNUNET_TESTING_daemons_connect (connect_context->first,
+ connect_context->second,
+ CONNECT_TIMEOUT,
+ CONNECT_ATTEMPTS,
+ &internal_connect_notify,
+ connect_context->ct_ctx);
+ GNUNET_free (connect_context);
+ }
+}
+
+
+/**
+ * Iterator for actually scheduling connections to be created
+ * between two peers.
+ *
+ * @param cls closure, a GNUNET_TESTING_Daemon
+ * @param key the key the second Daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ *
+ * @return GNUNET_YES to continue iteration
+ */
+static int
+connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct ConnectTopologyContext *ct_ctx = cls;
+ struct PeerData *first = ct_ctx->first;
+ struct GNUNET_TESTING_Daemon *second = value;
+ struct ConnectContext *connect_context;
+
+ connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
+ connect_context->first = first->daemon;
+ connect_context->second = second;
+ connect_context->ct_ctx = ct_ctx;
+ GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
+
+ return GNUNET_YES;
+}
+
+
+/**
+ * Iterator for copying all entries in the allowed hashmap to the
+ * connect hashmap.
+ *
+ * @param cls closure, a GNUNET_TESTING_Daemon
+ * @param key the key the second Daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ *
+ * @return GNUNET_YES to continue iteration
+ */
+static int
+copy_topology_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct PeerData *first = cls;
+
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
+ value,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+
+ return GNUNET_YES;
+}
+
+/**
+ * Make the peers to connect the same as those that are allowed to be
+ * connected.
+ *
+ * @param pg the peer group
+ */
+static int
+copy_allowed_topology (struct GNUNET_TESTING_PeerGroup *pg)
+{
+ unsigned int pg_iter;
+ int ret;
+ int total;
+
+ total = 0;
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ ret =
+ GNUNET_CONTAINER_multihashmap_iterate (pg->
+ peers[pg_iter].allowed_peers,
+ ©_topology_iterator,
+ &pg->peers[pg_iter]);
+ if (GNUNET_SYSERR == ret)
+ return GNUNET_SYSERR;
+
+ total = total + ret;
+ }
+
+ return total;
+}
+
+
+/**
+ * Connect the topology as specified by the PeerConnection's
+ * of each peer in the peer group
+ *
+ * @param pg the peer group we are dealing with
+ * @param notify_callback callback to notify when finished
+ * @param notify_cls closure for notify callback
+ *
+ * @return the number of connections that will be attempted
+ */
+static int
+connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_NotifyCompletion notify_callback,
+ void *notify_cls)
+{
+ unsigned int pg_iter;
+ int ret;
+ unsigned int total;
+ struct ConnectTopologyContext *ct_ctx;
+#if OLD
+ struct PeerConnection *connection_iter;
+ struct ConnectContext *connect_context;
+#endif
+
+ total = 0;
+ ct_ctx = GNUNET_malloc (sizeof (struct ConnectTopologyContext));
+ ct_ctx->notify_connections_done = notify_callback;
+ ct_ctx->notify_cls = notify_cls;
+ ct_ctx->pg = pg;
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ total +=
+ GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
+ }
+
+ if (total == 0)
+ {
+ GNUNET_free (ct_ctx);
+ return total;
+ }
+ ct_ctx->remaining_connections = total;
+ total = 0;
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ ct_ctx->first = &pg->peers[pg_iter];
+ ret =
+ GNUNET_CONTAINER_multihashmap_iterate (pg->
+ peers[pg_iter].connect_peers,
+ &connect_iterator, ct_ctx);
+ GNUNET_assert (GNUNET_SYSERR != ret && ret >= 0);
+ total = total + ret;
+
+#if OLD
+ connection_iter = FIXME;
+ while (connection_iter != NULL)
+ {
+ connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
+ connect_context->pg = pg;
+ connect_context->first = FIXME;
+ connect_context->second = connection_iter->daemon;
+ GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
+ connection_iter = connection_iter->next;
+ }
+#endif
+ }
+ return total;
+}
+
+
+/**
+ * Takes a peer group and creates a topology based on the
+ * one specified. Creates a topology means generates friend
+ * files for the peers so they can only connect to those allowed
+ * by the topology. This will only have an effect once peers
+ * are started if the FRIENDS_ONLY option is set in the base
+ * config. Also takes an optional restrict topology which
+ * disallows connections based on particular transports
+ * UNLESS they are specified in the restricted topology.
+ *
+ * @param pg the peer group struct representing the running peers
+ * @param topology which topology to connect the peers in
+ * @param restrict_topology disallow restrict_transports transport
+ * connections to peers NOT in this topology
+ * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
+ * @param restrict_transports space delimited list of transports to blacklist
+ * to create restricted topology
+ *
+ * @return the maximum number of connections were all allowed peers
+ * connected to each other
+ */
+unsigned int
+GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
+ enum GNUNET_TESTING_Topology topology,
+ enum GNUNET_TESTING_Topology
+ restrict_topology,
+ const char *restrict_transports)
+{
+ int ret;
+ unsigned int num_connections;
+ int unblacklisted_connections;
+
+ switch (topology)
+ {
+ case GNUNET_TESTING_TOPOLOGY_CLIQUE:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating clique topology\n"));
+#endif
+ num_connections = create_clique (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating small world (ring) topology\n"));
+#endif
+ num_connections =
+ create_small_world_ring (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating small world (2d-torus) topology\n"));
+#endif
+ num_connections = create_small_world (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_RING:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring topology\n"));
+#endif
+ num_connections = create_ring (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating 2d torus topology\n"));
+#endif
+ num_connections = create_2d_torus (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating Erdos-Renyi topology\n"));
+#endif
+ num_connections = create_erdos_renyi (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_INTERNAT:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating InterNAT topology\n"));
+#endif
+ num_connections = create_nated_internet (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating Scale Free topology\n"));
+#endif
+ num_connections = create_scale_free (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_LINE:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating straight line topology\n"));
+#endif
+ num_connections = create_line (pg, &add_allowed_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_NONE:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Creating no allowed topology (all peers can connect at core level)\n"));
+#endif
+ num_connections = 0;
+ break;
+ default:
+ num_connections = 0;
+ break;
+ }
+
+ if (GNUNET_YES ==
+ GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
+ {
+ ret = create_and_copy_friend_files (pg);
+ if (ret != GNUNET_OK)
+ {
#if VERBOSE_TESTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating InterNAT topology (may take a bit!)\n"));
+ _("Failed during friend file copying!\n"));
+#endif
+ return GNUNET_SYSERR;
+ }
+ else
+ {
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Friend files created/copied successfully!\n"));
+#endif
+ }
+ }
+
+ /* Use the create clique method to initially set all connections as blacklisted. */
+ if (restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE)
+ create_clique (pg, &blacklist_connections);
+
+ unblacklisted_connections = 0;
+ /* Un-blacklist connections as per the topology specified */
+ switch (restrict_topology)
+ {
+ case GNUNET_TESTING_TOPOLOGY_CLIQUE:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklisting all but clique topology\n"));
+#endif
+ unblacklisted_connections =
+ create_clique (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklisting all but small world (ring) topology\n"));
+#endif
+ unblacklisted_connections =
+ create_small_world_ring (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Blacklisting all but small world (2d-torus) topology\n"));
+#endif
+ unblacklisted_connections =
+ create_small_world (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_RING:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklisting all but ring topology\n"));
+#endif
+ unblacklisted_connections = create_ring (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklisting all but 2d torus topology\n"));
+#endif
+ unblacklisted_connections =
+ create_2d_torus (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklisting all but Erdos-Renyi topology\n"));
+#endif
+ unblacklisted_connections =
+ create_erdos_renyi (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_INTERNAT:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklisting all but InterNAT topology\n"));
+#endif
+ unblacklisted_connections =
+ create_nated_internet (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklisting all but Scale Free topology\n"));
+#endif
+ unblacklisted_connections =
+ create_scale_free (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_LINE:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklisting all but straight line topology\n"));
+#endif
+ unblacklisted_connections = create_line (pg, &unblacklist_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_NONE:
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Creating no blacklist topology (all peers can connect at transport level)\n"));
+#endif
+ default:
+ break;
+ }
+
+ if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
+ {
+ ret = create_and_copy_blacklist_files (pg, restrict_transports);
+ if (ret != GNUNET_OK)
+ {
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Failed during blacklist file copying!\n"));
+#endif
+ return 0;
+ }
+ else
+ {
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklist files created/copied successfully!\n"));
#endif
- ret = create_nated_internet (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_NONE:
- ret = 0;
- break;
- default:
- ret = GNUNET_SYSERR;
- break;
}
+ }
+ return num_connections;
+}
+
+struct RandomContext
+{
+ /**
+ * The peergroup
+ */
+ struct GNUNET_TESTING_PeerGroup *pg;
+
+ /**
+ * uid of the first peer
+ */
+ uint32_t first_uid;
+
+ /**
+ * Peer data for first peer.
+ */
+ struct PeerData *first;
+
+ /**
+ * Random percentage to use
+ */
+ double percentage;
+};
+
+struct MinimumContext
+{
+ /**
+ * The peergroup
+ */
+ struct GNUNET_TESTING_PeerGroup *pg;
+
+ /**
+ * uid of the first peer
+ */
+ uint32_t first_uid;
+
+ /**
+ * Peer data for first peer.
+ */
+ struct PeerData *first;
+
+ /**
+ * Number of conns per peer
+ */
+ unsigned int num_to_add;
+
+ /**
+ * Permuted array of all possible connections. Only add the Nth
+ * peer if it's in the Nth position.
+ */
+ unsigned int *pg_array;
+
+ /**
+ * What number is the current element we are iterating over?
+ */
+ unsigned int current;
+};
+
+struct DFSContext
+{
+ /**
+ * The peergroup
+ */
+ struct GNUNET_TESTING_PeerGroup *pg;
+
+ /**
+ * uid of the first peer
+ */
+ uint32_t first_uid;
+
+ /**
+ * uid of the second peer
+ */
+ uint32_t second_uid;
+
+ /**
+ * Peer data for first peer.
+ */
+ struct PeerData *first;
+
+ /**
+ * Which peer has been chosen as the one to add?
+ */
+ unsigned int chosen;
+
+ /**
+ * What number is the current element we are iterating over?
+ */
+ unsigned int current;
+};
+
+/**
+ * Iterator for choosing random peers to connect.
+ *
+ * @param cls closure, a RandomContext
+ * @param key the key the second Daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ *
+ * @return GNUNET_YES to continue iteration
+ */
+static int
+random_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct RandomContext *random_ctx = cls;
+ double random_number;
+ uint32_t second_pos;
+ GNUNET_HashCode first_hash;
+ random_number =
+ ((double)
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+ UINT64_MAX)) / ((double) UINT64_MAX);
+ if (random_number < random_ctx->percentage)
+ {
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (random_ctx->
+ first->connect_peers_working_set,
+ key, value,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ }
+ /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
+ uid_from_hash (key, &second_pos);
+ hash_from_uid (random_ctx->first_uid, &first_hash);
+ GNUNET_assert (random_ctx->pg->total > second_pos);
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_remove (random_ctx->
+ pg->peers
+ [second_pos].connect_peers,
+ &first_hash,
+ random_ctx->
+ first->daemon));
+
+ return GNUNET_YES;
+}
+
+/**
+ * Iterator for adding at least X peers to a peers connection set.
+ *
+ * @param cls closure, MinimumContext
+ * @param key the key the second Daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ *
+ * @return GNUNET_YES to continue iteration
+ */
+static int
+minimum_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct MinimumContext *min_ctx = cls;
+ uint32_t second_pos;
+ GNUNET_HashCode first_hash;
+ unsigned int i;
+
+ if (GNUNET_CONTAINER_multihashmap_size
+ (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
+ {
+ for (i = 0; i < min_ctx->num_to_add; i++)
+ {
+ if (min_ctx->pg_array[i] == min_ctx->current)
+ {
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put
+ (min_ctx->first->connect_peers_working_set, key,
+ value,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ uid_from_hash (key, &second_pos);
+ hash_from_uid (min_ctx->first_uid, &first_hash);
+ GNUNET_assert (min_ctx->pg->total > second_pos);
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (min_ctx->
+ pg->peers
+ [second_pos].connect_peers_working_set,
+ &first_hash,
+ min_ctx->first->
+ daemon,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_remove
+ (min_ctx->pg->peers[second_pos].connect_peers,
+ &first_hash, min_ctx->first->daemon));
+ }
+ }
+ min_ctx->current++;
+ return GNUNET_YES;
+ }
+ else
+ return GNUNET_NO; /* We can stop iterating, we have enough peers! */
+
+}
+
+
+/**
+ * Iterator for adding peers to a connection set based on a depth first search.
+ *
+ * @param cls closure, MinimumContext
+ * @param key the key the second daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ *
+ * @return GNUNET_YES to continue iteration
+ */
+static int
+dfs_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct DFSContext *dfs_ctx = cls;
+ GNUNET_HashCode first_hash;
+
+ if (dfs_ctx->current == dfs_ctx->chosen)
+ {
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
+ first->connect_peers_working_set,
+ key, value,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ uid_from_hash (key, &dfs_ctx->second_uid);
+ hash_from_uid (dfs_ctx->first_uid, &first_hash);
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
+ pg->peers
+ [dfs_ctx->second_uid].connect_peers_working_set,
+ &first_hash,
+ dfs_ctx->
+ first->daemon,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
+ pg->peers
+ [dfs_ctx->second_uid].connect_peers,
+ &first_hash,
+ dfs_ctx->
+ first->daemon));
+ /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
+ return GNUNET_NO; /* We have found our peer, don't iterate more */
+ }
+
+ dfs_ctx->current++;
+ return GNUNET_YES;
+}
+
+
+/**
+ * From the set of connections possible, choose percentage percent of connections
+ * to actually connect.
+ *
+ * @param pg the peergroup we are dealing with
+ * @param percentage what percent of total connections to make
+ */
+void
+choose_random_connections (struct GNUNET_TESTING_PeerGroup *pg,
+ double percentage)
+{
+ struct RandomContext random_ctx;
+ uint32_t pg_iter;
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ random_ctx.first_uid = pg_iter;
+ random_ctx.first = &pg->peers[pg_iter];
+ random_ctx.percentage = percentage;
+ random_ctx.pg = pg;
+ pg->peers[pg_iter].connect_peers_working_set =
+ GNUNET_CONTAINER_multihashmap_create (pg->total);
+ GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
+ &random_connect_iterator,
+ &random_ctx);
+ /* Now remove the old connections */
+ GNUNET_CONTAINER_multihashmap_destroy (pg->
+ peers[pg_iter].connect_peers);
+ /* And replace with the random set */
+ pg->peers[pg_iter].connect_peers =
+ pg->peers[pg_iter].connect_peers_working_set;
+ }
+}
+
+/**
+ * From the set of connections possible, choose at least num connections per
+ * peer.
+ *
+ * @param pg the peergroup we are dealing with
+ * @param num how many connections at least should each peer have (if possible)?
+ */
+static void
+choose_minimum (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
+{
+ struct MinimumContext minimum_ctx;
+ uint32_t pg_iter;
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ pg->peers[pg_iter].connect_peers_working_set =
+ GNUNET_CONTAINER_multihashmap_create (num);
+ }
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ minimum_ctx.first_uid = pg_iter;
+ minimum_ctx.pg_array =
+ GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
+ GNUNET_CONTAINER_multihashmap_size
+ (pg->peers[pg_iter].connect_peers));
+ minimum_ctx.first = &pg->peers[pg_iter];
+ minimum_ctx.pg = pg;
+ minimum_ctx.num_to_add = num;
+ minimum_ctx.current = 0;
+ GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
+ &minimum_connect_iterator,
+ &minimum_ctx);
+ }
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ /* Remove the "old" connections */
+ GNUNET_CONTAINER_multihashmap_destroy (pg->
+ peers[pg_iter].connect_peers);
+ /* And replace with the working set */
+ pg->peers[pg_iter].connect_peers =
+ pg->peers[pg_iter].connect_peers_working_set;
+ }
+
+}
+
+
+static unsigned int
+count_workingset_connections (struct GNUNET_TESTING_PeerGroup *pg)
+{
+ unsigned int count;
+ unsigned int pg_iter;
+
+ count = 0;
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ count +=
+ GNUNET_CONTAINER_multihashmap_size (pg->
+ peers
+ [pg_iter].connect_peers_working_set);
+ }
+
+ return count;
+}
+
+
+static unsigned int
+count_allowed_connections (struct GNUNET_TESTING_PeerGroup *pg)
+{
+ unsigned int count;
+ unsigned int pg_iter;
+
+ count = 0;
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ count +=
+ GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
+ }
+
+ return count;
+}
+
+
+struct FindClosestContext
+{
+ /**
+ * The currently known closest peer.
+ */
+ struct GNUNET_TESTING_Daemon *closest;
+
+ /**
+ * The info for the peer we are adding connections for.
+ */
+ struct PeerData *curr_peer;
+
+ /**
+ * The distance (bits) between the current
+ * peer and the currently known closest.
+ */
+ unsigned int closest_dist;
+
+ /**
+ * The offset of the closest known peer in
+ * the peer group.
+ */
+ unsigned int closest_num;
+};
+
+/**
+ * Iterator over hash map entries of the allowed
+ * peer connections. Find the closest, not already
+ * connected peer and return it.
+ *
+ * @param cls closure (struct FindClosestContext)
+ * @param key current key code (hash of offset in pg)
+ * @param value value in the hash map - a GNUNET_TESTING_Daemon
+ * @return GNUNET_YES if we should continue to
+ * iterate,
+ * GNUNET_NO if not.
+ */
+static int
+find_closest_peers (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct FindClosestContext *closest_ctx = cls;
+ struct GNUNET_TESTING_Daemon *daemon = value;
+
+ if (((closest_ctx->closest == NULL) ||
+ (GNUNET_CRYPTO_hash_matching_bits
+ (&daemon->id.hashPubKey,
+ &closest_ctx->curr_peer->daemon->id.hashPubKey) >
+ closest_ctx->closest_dist))
+ && (GNUNET_YES !=
+ GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
+ curr_peer->connect_peers,
+ key)))
+ {
+ closest_ctx->closest_dist =
+ GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
+ &closest_ctx->curr_peer->daemon->
+ id.hashPubKey);
+ closest_ctx->closest = daemon;
+ uid_from_hash (key, &closest_ctx->closest_num);
+ }
+ return GNUNET_YES;
+}
+
+/**
+ * From the set of connections possible, choose at num connections per
+ * peer based on depth which are closest out of those allowed. Guaranteed
+ * to add num peers to connect to, provided there are that many peers
+ * in the underlay topology to connect to.
+ *
+ * @param pg the peergroup we are dealing with
+ * @param num how many connections at least should each peer have (if possible)?
+ * @param proc processor to actually add the connections
+ */
+void
+add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
+ GNUNET_TESTING_ConnectionProcessor proc)
+{
+ struct FindClosestContext closest_ctx;
+ uint32_t pg_iter;
+ uint32_t i;
+
+ for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
+ {
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ closest_ctx.curr_peer = &pg->peers[pg_iter];
+ closest_ctx.closest = NULL;
+ closest_ctx.closest_dist = 0;
+ closest_ctx.closest_num = 0;
+ GNUNET_CONTAINER_multihashmap_iterate (pg->
+ peers[pg_iter].allowed_peers,
+ &find_closest_peers,
+ &closest_ctx);
+ if (closest_ctx.closest != NULL)
+ {
+ GNUNET_assert (closest_ctx.closest_num < pg->total);
+ proc (pg, pg_iter, closest_ctx.closest_num);
+ }
+ }
+ }
+}
+
+/**
+ * From the set of connections possible, choose at least num connections per
+ * peer based on depth first traversal of peer connections. If DFS leaves
+ * peers unconnected, ensure those peers get connections.
+ *
+ * @param pg the peergroup we are dealing with
+ * @param num how many connections at least should each peer have (if possible)?
+ */
+void
+perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
+{
+ struct DFSContext dfs_ctx;
+ uint32_t pg_iter;
+ uint32_t dfs_count;
+ uint32_t starting_peer;
+ uint32_t least_connections;
+ GNUNET_HashCode second_hash;
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ pg->peers[pg_iter].connect_peers_working_set =
+ GNUNET_CONTAINER_multihashmap_create (num);
+ }
+
+ starting_peer = 0;
+ dfs_count = 0;
+ while ((count_workingset_connections (pg) < num * pg->total)
+ && (count_allowed_connections (pg) > 0))
+ {
+ if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
+ {
+ least_connections = -1; /* Set to very high number */
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ if (GNUNET_CONTAINER_multihashmap_size
+ (pg->peers[pg_iter].connect_peers_working_set) <
+ least_connections)
+ {
+ starting_peer = pg_iter;
+ least_connections =
+ GNUNET_CONTAINER_multihashmap_size (pg->
+ peers
+ [pg_iter].connect_peers_working_set);
+ }
+ }
+ }
+
+ if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
+ {
+ dfs_count = 0;
+ continue;
+ }
+
+ /* Choose a random peer from the chosen peers set of connections to add */
+ dfs_ctx.chosen =
+ GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+ GNUNET_CONTAINER_multihashmap_size
+ (pg->peers[starting_peer].connect_peers));
+ dfs_ctx.first_uid = starting_peer;
+ dfs_ctx.first = &pg->peers[starting_peer];
+ dfs_ctx.pg = pg;
+ dfs_ctx.current = 0;
+
+ GNUNET_CONTAINER_multihashmap_iterate (pg->
+ peers
+ [starting_peer].connect_peers,
+ &dfs_connect_iterator, &dfs_ctx);
+ /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
+ hash_from_uid (dfs_ctx.second_uid, &second_hash);
+ GNUNET_assert (GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_remove (pg->peers
+ [starting_peer].connect_peers,
+ &second_hash,
+ pg->
+ peers
+ [dfs_ctx.second_uid].daemon));
+ starting_peer = dfs_ctx.second_uid;
+ }
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ /* Remove the "old" connections */
+ GNUNET_CONTAINER_multihashmap_destroy (pg->
+ peers[pg_iter].connect_peers);
+ /* And replace with the working set */
+ pg->peers[pg_iter].connect_peers =
+ pg->peers[pg_iter].connect_peers_working_set;
+ }
+}
+
+/**
+ * Internal callback for topology information for a particular peer.
+ */
+static void
+internal_topology_callback (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_TRANSPORT_ATS_Information
+ *atsi)
+{
+ struct CoreContext *core_ctx = cls;
+ struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
+
+ if (peer == NULL) /* Either finished, or something went wrong */
+ {
+ iter_ctx->completed++;
+ iter_ctx->connected--;
+ /* One core context allocated per iteration, must free! */
+ GNUNET_free (core_ctx);
+ }
+ else
+ {
+ iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id,
+ peer, NULL);
+ }
+
+ if (iter_ctx->completed == iter_ctx->total)
+ {
+ iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
+ /* Once all are done, free the iteration context */
+ GNUNET_free (iter_ctx);
+ }
+}
+
+
+/**
+ * Check running topology iteration tasks, if below max start a new one, otherwise
+ * schedule for some time in the future.
+ */
+static void
+schedule_get_topology (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct CoreContext *core_context = cls;
+ struct TopologyIterateContext *topology_context =
+ (struct TopologyIterateContext *) core_context->iter_context;
+ if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ return;
+
+ if (topology_context->connected > MAX_OUTSTANDING_CONNECTIONS)
+ {
+#if VERBOSE_TESTING > 2
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Delaying connect, we have too many outstanding connections!\n"));
+#endif
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+ &schedule_get_topology, core_context);
+ }
+ else
+ {
+#if VERBOSE_TESTING > 2
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating connection, outstanding_connections is %d\n"),
+ outstanding_connects);
+#endif
+ topology_context->connected++;
+
+ if (GNUNET_OK !=
+ GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
+ &internal_topology_callback,
+ core_context))
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
+ internal_topology_callback (core_context, NULL, NULL);
+ }
+ }
+}
+
+/**
+ * Iterate over all (running) peers in the peer group, retrieve
+ * all connections that each currently has.
+ */
+void
+GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_NotifyTopology cb, void *cls)
+{
+ struct TopologyIterateContext *topology_context;
+ struct CoreContext *core_ctx;
+ unsigned int i;
+ unsigned int total_count;
+
+ /* Allocate a single topology iteration context */
+ topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
+ topology_context->topology_cb = cb;
+ topology_context->cls = cls;
+ total_count = 0;
+ for (i = 0; i < pg->total; i++)
+ {
+ if (pg->peers[i].daemon->running == GNUNET_YES)
+ {
+ /* Allocate one core context per core we need to connect to */
+ core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
+ core_ctx->daemon = pg->peers[i].daemon;
+ /* Set back pointer to topology iteration context */
+ core_ctx->iter_context = topology_context;
+ GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
+ total_count++;
+ }
+ }
+ if (total_count == 0)
+ {
+ cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
+ GNUNET_free (topology_context);
+ }
+ else
+ topology_context->total = total_count;
+ return;
+}
+
+/**
+ * Callback function to process statistic values.
+ * This handler is here only really to insert a peer
+ * identity (or daemon) so the statistics can be uniquely
+ * tied to a single running peer.
+ *
+ * @param cls closure
+ * @param subsystem name of subsystem that created the statistic
+ * @param name the name of the datum
+ * @param value the current value
+ * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
+ * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
+ */
+static int
+internal_stats_callback (void *cls,
+ const char *subsystem,
+ const char *name, uint64_t value, int is_persistent)
+{
+ struct StatsCoreContext *core_context = cls;
+ struct StatsIterateContext *stats_context =
+ (struct StatsIterateContext *) core_context->iter_context;
+
+ return stats_context->proc (stats_context->cls, &core_context->daemon->id,
+ subsystem, name, value, is_persistent);
+}
+
+/**
+ * Internal continuation call for statistics iteration.
+ *
+ * @param cls closure, the CoreContext for this iteration
+ * @param success whether or not the statistics iterations
+ * was canceled or not (we don't care)
+ */
+static void
+internal_stats_cont (void *cls, int success)
+{
+ struct StatsCoreContext *core_context = cls;
+ struct StatsIterateContext *stats_context =
+ (struct StatsIterateContext *) core_context->iter_context;
+
+ stats_context->connected--;
+ stats_context->completed++;
+
+ if (stats_context->completed == stats_context->total)
+ {
+ stats_context->cont (stats_context->cls, GNUNET_YES);
+ GNUNET_free (stats_context);
+ }
+
+ if (core_context->stats_handle != NULL)
+ GNUNET_STATISTICS_destroy (core_context->stats_handle, GNUNET_NO);
+
+ GNUNET_free (core_context);
+}
+
+/**
+ * Check running topology iteration tasks, if below max start a new one, otherwise
+ * schedule for some time in the future.
+ */
+static void
+schedule_get_statistics (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct StatsCoreContext *core_context = cls;
+ struct StatsIterateContext *stats_context =
+ (struct StatsIterateContext *) core_context->iter_context;
+
+ if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ return;
+
+ if (stats_context->connected > MAX_OUTSTANDING_CONNECTIONS)
+ {
+#if VERBOSE_TESTING > 2
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Delaying connect, we have too many outstanding connections!\n"));
+#endif
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+ &schedule_get_statistics, core_context);
+ }
+ else
+ {
+#if VERBOSE_TESTING > 2
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating connection, outstanding_connections is %d\n"),
+ outstanding_connects);
+#endif
+
+ stats_context->connected++;
+ core_context->stats_handle =
+ GNUNET_STATISTICS_create ("testing", core_context->daemon->cfg);
+ if (core_context->stats_handle == NULL)
+ {
+ internal_stats_cont (core_context, GNUNET_NO);
+ return;
+ }
+
+ core_context->stats_get_handle =
+ GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
+ GNUNET_TIME_relative_get_forever (),
+ &internal_stats_cont, &internal_stats_callback,
+ core_context);
+ if (core_context->stats_get_handle == NULL)
+ internal_stats_cont (core_context, GNUNET_NO);
+
+ }
+}
+
+struct DuplicateStats
+{
+ /**
+ * Next item in the list
+ */
+ struct DuplicateStats *next;
+
+ /**
+ * Nasty string, concatenation of relevant information.
+ */
+ char *unique_string;
+};
+
+/**
+ * Check whether the combination of port/host/unix domain socket
+ * already exists in the list of peers being checked for statistics.
+ *
+ * @param pg the peergroup in question
+ * @param specific_peer the peer we're concerned with
+ * @param stats_list the list to return to the caller
+ *
+ * @return GNUNET_YES if the statistics instance has been seen already,
+ * GNUNET_NO if not (and we may have added it to the list)
+ */
+static int
+stats_check_existing (struct GNUNET_TESTING_PeerGroup *pg,
+ struct PeerData *specific_peer,
+ struct DuplicateStats **stats_list)
+{
+ struct DuplicateStats *pos;
+ char *unix_domain_socket;
+ unsigned long long port;
+ char *to_match;
+ if (GNUNET_YES !=
+ GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing",
+ "single_statistics_per_host"))
+ return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
+
+ pos = *stats_list;
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg, "statistics",
+ "unixpath", &unix_domain_socket))
+ return GNUNET_NO;
+
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg, "statistics",
+ "port", &port))
+ {
+ GNUNET_free(unix_domain_socket);
+ return GNUNET_NO;
+ }
+
+ if (specific_peer->daemon->hostname != NULL)
+ GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
+ unix_domain_socket, port);
+ else
+ GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
+
+ while (pos != NULL)
+ {
+ if (0 == strcmp (to_match, pos->unique_string))
+ {
+ GNUNET_free (unix_domain_socket);
+ GNUNET_free (to_match);
+ return GNUNET_YES;
+ }
+ pos = pos->next;
+ }
+ pos = GNUNET_malloc (sizeof (struct DuplicateStats));
+ pos->unique_string = to_match;
+ pos->next = *stats_list;
+ *stats_list = pos;
+ GNUNET_free (unix_domain_socket);
+ return GNUNET_NO;
+}
+
+/**
+ * Iterate over all (running) peers in the peer group, retrieve
+ * all statistics from each.
+ */
+void
+GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_STATISTICS_Callback cont,
+ GNUNET_TESTING_STATISTICS_Iterator proc,
+ void *cls)
+{
+ struct StatsIterateContext *stats_context;
+ struct StatsCoreContext *core_ctx;
+ unsigned int i;
+ unsigned int total_count;
+ struct DuplicateStats *stats_list;
+ struct DuplicateStats *pos;
+ stats_list = NULL;
+
+ /* Allocate a single stats iteration context */
+ stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
+ stats_context->cont = cont;
+ stats_context->proc = proc;
+ stats_context->cls = cls;
+ total_count = 0;
+
+ for (i = 0; i < pg->total; i++)
+ {
+ if ((pg->peers[i].daemon->running == GNUNET_YES)
+ && (GNUNET_NO ==
+ stats_check_existing (pg, &pg->peers[i], &stats_list)))
+ {
+ /* Allocate one core context per core we need to connect to */
+ core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
+ core_ctx->daemon = pg->peers[i].daemon;
+ /* Set back pointer to topology iteration context */
+ core_ctx->iter_context = stats_context;
+ GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
+ total_count++;
+ }
+ }
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Retrieving stats from %u total instances.\n", total_count);
+ stats_context->total = total_count;
+ if (stats_list != NULL)
+ {
+ pos = stats_list;
+ while (pos != NULL)
+ {
+ GNUNET_free (pos->unique_string);
+ stats_list = pos->next;
+ GNUNET_free (pos);
+ pos = stats_list->next;
+ }
+ }
+ return;
+}
+
+/**
+ * There are many ways to connect peers that are supported by this function.
+ * To connect peers in the same topology that was created via the
+ * GNUNET_TESTING_create_topology, the topology variable must be set to
+ * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
+ * a new instance of that topology will be generated and attempted to be
+ * connected. This could result in some connections being impossible,
+ * because some topologies are non-deterministic.
+ *
+ * @param pg the peer group struct representing the running peers
+ * @param topology which topology to connect the peers in
+ * @param options options for connecting the topology
+ * @param option_modifier modifier for options that take a parameter
+ * @param notify_callback notification to be called once all connections completed
+ * @param notify_cls closure for notification callback
+ *
+ * @return the number of connections that will be attempted, GNUNET_SYSERR on error
+ */
+int
+GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
+ enum GNUNET_TESTING_Topology topology,
+ enum GNUNET_TESTING_TopologyOption options,
+ double option_modifier,
+ GNUNET_TESTING_NotifyCompletion
+ notify_callback, void *notify_cls)
+{
+ switch (topology)
+ {
+ case GNUNET_TESTING_TOPOLOGY_CLIQUE:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating clique CONNECT topology\n"));
+#endif
+ create_clique (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating small world (ring) CONNECT topology\n"));
+#endif
+ create_small_world_ring (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating small world (2d-torus) CONNECT topology\n"));
+#endif
+ create_small_world (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_RING:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating ring CONNECT topology\n"));
+#endif
+ create_ring (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating 2d torus CONNECT topology\n"));
+#endif
+ create_2d_torus (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating Erdos-Renyi CONNECT topology\n"));
+#endif
+ create_erdos_renyi (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_INTERNAT:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating InterNAT CONNECT topology\n"));
+#endif
+ create_nated_internet (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating Scale Free CONNECT topology\n"));
+#endif
+ create_scale_free (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_LINE:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating straight line CONNECT topology\n"));
+#endif
+ create_line (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_NONE:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating no CONNECT topology\n"));
+#endif
+ copy_allowed_topology (pg);
+ break;
+ default:
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Unknown topology specification, can't connect peers!\n"));
+ return GNUNET_SYSERR;
+ }
+
+ switch (options)
+ {
+ case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Connecting random subset (%'.2f percent) of possible peers\n"),
+ 100 * option_modifier);
+#endif
+ choose_random_connections (pg, option_modifier);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Connecting a minimum of %u peers each (if possible)\n"),
+ (unsigned int) option_modifier);
+#endif
+ choose_minimum (pg, (unsigned int) option_modifier);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _
+ ("Using DFS to connect a minimum of %u peers each (if possible)\n"),
+ (unsigned int) option_modifier);
+#endif
+ perform_dfs (pg, (int) option_modifier);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
+#if VERBOSE_TOPOLOGY
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Finding additional %u closest peers each (if possible)\n"),
+ (unsigned int) option_modifier);
+#endif
+ add_closest (pg, (unsigned int) option_modifier,
+ &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
+ break;
+ default:
+ break;
+ }
+
+ return connect_topology (pg, notify_callback, notify_cls);
+}
+
+/**
+ * Callback that is called whenever a hostkey is generated
+ * for a peer. Call the real callback and decrement the
+ * starting counter for the peergroup.
+ *
+ * @param cls closure
+ * @param id identifier for the daemon, NULL on error
+ * @param d handle for the daemon
+ * @param emsg error message (NULL on success)
+ */
+static void
+internal_hostkey_callback (void *cls,
+ const struct GNUNET_PeerIdentity *id,
+ struct GNUNET_TESTING_Daemon *d, const char *emsg)
+{
+ struct InternalStartContext *internal_context = cls;
+ internal_context->peer->pg->starting--;
+ internal_context->peer->pg->started++;
+ if (internal_context->hostkey_callback != NULL)
+ internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
+ emsg);
+ else if (internal_context->peer->pg->started ==
+ internal_context->peer->pg->total)
+ {
+ internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
+ GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
+ }
+}
+
+/**
+ * Callback that is called whenever a peer has finished starting.
+ * Call the real callback and decrement the starting counter
+ * for the peergroup.
+ *
+ * @param cls closure
+ * @param id identifier for the daemon, NULL on error
+ * @param cfg config
+ * @param d handle for the daemon
+ * @param emsg error message (NULL on success)
+ */
+static void
+internal_startup_callback (void *cls,
+ const struct GNUNET_PeerIdentity *id,
+ const struct GNUNET_CONFIGURATION_Handle *cfg,
+ struct GNUNET_TESTING_Daemon *d, const char *emsg)
+{
+ struct InternalStartContext *internal_context = cls;
+ internal_context->peer->pg->starting--;
+ if (internal_context->start_cb != NULL)
+ internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
+ emsg);
+}
+
+static void
+internal_continue_startup (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct InternalStartContext *internal_context = cls;
+
+ if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ {
+ return;
+ }
+
+ if (internal_context->peer->pg->starting < MAX_CONCURRENT_STARTING)
+ {
+ internal_context->peer->pg->starting++;
+ GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
+ }
+ else
+ {
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+ &internal_continue_startup,
+ internal_context);
+ }
+}
+
+
+/**
+ * Callback for informing us about a successful
+ * or unsuccessful churn start call.
+ *
+ * @param cls a ChurnContext
+ * @param id the peer identity of the started peer
+ * @param cfg the handle to the configuration of the peer
+ * @param d handle to the daemon for the peer
+ * @param emsg NULL on success, non-NULL on failure
+ *
+ */
+void
+churn_start_callback (void *cls,
+ const struct GNUNET_PeerIdentity *id,
+ const struct GNUNET_CONFIGURATION_Handle *cfg,
+ struct GNUNET_TESTING_Daemon *d, const char *emsg)
+{
+ struct ChurnRestartContext *startup_ctx = cls;
+ struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
+
+ unsigned int total_left;
+ char *error_message;
+
+ error_message = NULL;
+ if (emsg != NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Churn stop callback failed with error `%s'\n", emsg);
+ churn_ctx->num_failed_start++;
+ }
+ else
+ {
+ churn_ctx->num_to_start--;
+ }
+
+#if DEBUG_CHURN
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Started peer, %d left.\n", churn_ctx->num_to_start);
+#endif
+
+ total_left =
+ (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
+ (churn_ctx->num_to_start - churn_ctx->num_failed_start);
+
+ if (total_left == 0)
+ {
+ if ((churn_ctx->num_failed_stop > 0)
+ || (churn_ctx->num_failed_start > 0))
+ GNUNET_asprintf (&error_message,
+ "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
+ churn_ctx->num_failed_start,
+ churn_ctx->num_failed_stop);
+ churn_ctx->cb (churn_ctx->cb_cls, error_message);
+ GNUNET_free_non_null (error_message);
+ GNUNET_free (churn_ctx);
+ GNUNET_free (startup_ctx);
+ }
+}
+
+
+static void
+schedule_churn_restart (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PeerRestartContext *peer_restart_ctx = cls;
+ struct ChurnRestartContext *startup_ctx =
+ peer_restart_ctx->churn_restart_ctx;
+
+ if (startup_ctx->outstanding > MAX_CONCURRENT_STARTING)
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+ &schedule_churn_restart, peer_restart_ctx);
+ else
+ {
+ GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
+ startup_ctx->timeout,
+ &churn_start_callback,
+ startup_ctx);
+ GNUNET_free (peer_restart_ctx);
+ }
+}
- if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
- create_and_copy_friend_files(pg);
+static void
+internal_start (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct InternalStartContext *internal_context = cls;
+
+ if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ {
+ return;
+ }
- connect_topology(pg);
+ if (internal_context->peer->pg->starting < MAX_CONCURRENT_HOSTKEYS)
+ {
+ internal_context->peer->pg->starting++;
+ internal_context->peer->daemon =
+ GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
+ internal_context->timeout,
+ internal_context->hostname,
+ internal_context->username,
+ internal_context->sshport,
+ &internal_hostkey_callback,
+ internal_context,
+ &internal_startup_callback,
+ internal_context);
}
else
{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("No topology specified, was one intended?\n"));
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+ &internal_start, internal_context);
}
+}
- return ret;
+/**
+ * Function which continues a peer group starting up
+ * after successfully generating hostkeys for each peer.
+ *
+ * @param pg the peer group to continue starting
+ *
+ */
+void
+GNUNET_TESTING_daemons_continue_startup (struct GNUNET_TESTING_PeerGroup *pg)
+{
+ unsigned int i;
+
+ pg->starting = 0;
+ for (i = 0; i < pg->total; i++)
+ {
+ GNUNET_SCHEDULER_add_now (&internal_continue_startup,
+ &pg->peers[i].internal_context);
+ //GNUNET_TESTING_daemon_continue_startup(pg->peers[i].daemon);
+ }
}
/**
- * Start count gnunetd processes with the same set of transports and
+ * Start count gnunet instances with the same set of transports and
* applications. The port numbers (any option called "PORT") will be
* adjusted to ensure that no two peers running on the same system
* have the same port(s) in their respective configurations.
*
- * @param sched scheduler to use
* @param cfg configuration template to use
* @param total number of daemons to start
+ * @param timeout total time allowed for peers to start
+ * @param hostkey_callback function to call on each peers hostkey generation
+ * if NULL, peers will be started by this call, if non-null,
+ * GNUNET_TESTING_daemons_continue_startup must be called after
+ * successful hostkey generation
+ * @param hostkey_cls closure for hostkey callback
* @param cb function to call on each daemon that was started
* @param cb_cls closure for cb
* @param connect_callback function to call each time two hosts are connected
* @param connect_callback_cls closure for connect_callback
- * @param hostnames space-separated list of hostnames to use; can be NULL (to run
- * everything on localhost).
+ * @param hostnames linked list of hosts to use to start peers on (NULL to run on localhost only)
+ *
* @return NULL on error, otherwise handle to control peer group
*/
struct GNUNET_TESTING_PeerGroup *
-GNUNET_TESTING_daemons_start (struct GNUNET_SCHEDULER_Handle *sched,
- const struct GNUNET_CONFIGURATION_Handle *cfg,
+GNUNET_TESTING_daemons_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
unsigned int total,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_TESTING_NotifyHostkeyCreated
+ hostkey_callback, void *hostkey_cls,
GNUNET_TESTING_NotifyDaemonRunning cb,
void *cb_cls,
GNUNET_TESTING_NotifyConnection
connect_callback, void *connect_callback_cls,
- const char *hostnames)
+ const struct GNUNET_TESTING_Host *hostnames)
{
struct GNUNET_TESTING_PeerGroup *pg;
- const char *rpos;
+ const struct GNUNET_TESTING_Host *hostpos;
+#if 0
char *pos;
+ const char *rpos;
char *start;
+#endif
const char *hostname;
+ const char *username;
char *baseservicehome;
char *newservicehome;
char *tmpdir;
unsigned int off;
unsigned int hostcnt;
uint16_t minport;
- int tempsize;
+ uint16_t sshport;
+ uint32_t upnum;
+ uint32_t fdnum;
if (0 == total)
{
GNUNET_break (0);
return NULL;
}
+ upnum = 0;
+ fdnum = 0;
pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
- pg->sched = sched;
pg->cfg = cfg;
- pg->cb = cb;
- pg->cb_cls = cb_cls;
pg->notify_connection = connect_callback;
pg->notify_connection_cls = connect_callback_cls;
pg->total = total;
+ pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
if (NULL != hostnames)
{
+ off = 0;
+ hostpos = hostnames;
+ while (hostpos != NULL)
+ {
+ hostpos = hostpos->next;
+ off++;
+ }
+ pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
+ off = 0;
+
+ hostpos = hostnames;
+ while (hostpos != NULL)
+ {
+ pg->hosts[off].minport = LOW_PORT;
+ pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
+ if (hostpos->username != NULL)
+ pg->hosts[off].username = GNUNET_strdup (hostpos->username);
+ pg->hosts[off].sshport = hostpos->port;
+ hostpos = hostpos->next;
+ off++;
+ }
+
+ if (off == 0)
+ {
+ pg->hosts = NULL;
+ }
+ hostcnt = off;
+ minport = 0;
+ pg->num_hosts = off;
+
+#if NO_LL
off = 2;
/* skip leading spaces */
- while ((0 != *hostnames) && (isspace (*hostnames)))
+ while ((0 != *hostnames) && (isspace ((unsigned char) *hostnames)))
hostnames++;
rpos = hostnames;
while ('\0' != *rpos)
{
- if (isspace (*rpos))
+ if (isspace ((unsigned char) *rpos))
off++;
rpos++;
}
pos = start;
while ('\0' != *pos)
{
- if (isspace (*pos))
+ if (isspace ((unsigned char) *pos))
{
*pos = '\0';
if (strlen (start) > 0)
}
hostcnt = off;
minport = 0; /* make gcc happy */
+#endif
}
else
{
if (hostcnt > 0)
{
hostname = pg->hosts[off % hostcnt].hostname;
- pcfg = make_config (cfg, &pg->hosts[off % hostcnt].minport);
+ username = pg->hosts[off % hostcnt].username;
+ sshport = pg->hosts[off % hostcnt].sshport;
+ pcfg = make_config (cfg,
+ &pg->hosts[off % hostcnt].minport,
+ &upnum, hostname, &fdnum);
}
else
{
hostname = NULL;
- pcfg = make_config (cfg, &minport);
+ username = NULL;
+ sshport = 0;
+ pcfg = make_config (cfg, &minport, &upnum, hostname, &fdnum);
}
+
if (NULL == pcfg)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS", "SERVICEHOME",
&baseservicehome))
{
- tempsize = snprintf (NULL, 0, "%s/%d/", baseservicehome, off) + 1;
- newservicehome = GNUNET_malloc (tempsize);
- snprintf (newservicehome, tempsize, "%s/%d/", baseservicehome, off);
+ GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
+ GNUNET_free (baseservicehome);
}
else
{
tmpdir = getenv ("TMPDIR");
tmpdir = tmpdir ? tmpdir : "/tmp";
- tempsize = snprintf (NULL, 0, "%s/%s/%d/", tmpdir, "gnunet-testing-test-test", off) + 1;
- newservicehome = GNUNET_malloc (tempsize);
- snprintf (newservicehome, tempsize, "%s/%d/",
- "/tmp/gnunet-testing-test-test", off);
+ GNUNET_asprintf (&newservicehome,
+ "%s/%s/%d/",
+ tmpdir, "gnunet-testing-test-test", off);
}
GNUNET_CONFIGURATION_set_value_string (pcfg,
"PATHS",
"SERVICEHOME", newservicehome);
-
+ GNUNET_free (newservicehome);
pg->peers[off].cfg = pcfg;
- pg->peers[off].daemon = GNUNET_TESTING_daemon_start (sched,
- pcfg,
- hostname,
- cb, cb_cls);
- if (NULL == pg->peers[off].daemon)
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Could not start peer number %u!\n"), off);
+ pg->peers[off].allowed_peers =
+ GNUNET_CONTAINER_multihashmap_create (total);
+ pg->peers[off].connect_peers =
+ GNUNET_CONTAINER_multihashmap_create (total);
+ pg->peers[off].blacklisted_peers =
+ GNUNET_CONTAINER_multihashmap_create (total);
+ pg->peers[off].pg = pg;
+
+ pg->peers[off].internal_context.peer = &pg->peers[off];
+ pg->peers[off].internal_context.timeout = timeout;
+ pg->peers[off].internal_context.hostname = hostname;
+ pg->peers[off].internal_context.username = username;
+ pg->peers[off].internal_context.sshport = sshport;
+ pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
+ pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
+ pg->peers[off].internal_context.start_cb = cb;
+ pg->peers[off].internal_context.start_cb_cls = cb_cls;
+
+ GNUNET_SCHEDULER_add_now (&internal_start,
+ &pg->peers[off].internal_context);
+
}
return pg;
}
* offsetting operation.
*/
struct GNUNET_TESTING_Daemon *
-GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg, unsigned int position)
+GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg,
+ unsigned int position)
{
if (position < pg->total)
return pg->peers[position].daemon;
return NULL;
}
+/*
+ * Get a daemon by peer identity, so callers can
+ * retrieve the daemon without knowing it's offset.
+ *
+ * @param pg the peer group to retrieve the daemon from
+ * @param peer_id the peer identity of the daemon to retrieve
+ *
+ * @return the daemon on success, or NULL if no such peer identity is found
+ */
+struct GNUNET_TESTING_Daemon *
+GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg,
+ struct GNUNET_PeerIdentity *peer_id)
+{
+ unsigned int i;
+
+ for (i = 0; i < pg->total; i++)
+ {
+ if (0 ==
+ memcmp (&pg->peers[i].daemon->id, peer_id,
+ sizeof (struct GNUNET_PeerIdentity)))
+ return pg->peers[i].daemon;
+ }
+
+ return NULL;
+}
+
+/**
+ * Prototype of a function that will be called when a
+ * particular operation was completed the testing library.
+ *
+ * @param cls closure (a struct RestartContext)
+ * @param id id of the peer that was restarted
+ * @param cfg handle to the configuration of the peer
+ * @param d handle to the daemon that was restarted
+ * @param emsg NULL on success
+ */
+void
+restart_callback (void *cls,
+ const struct GNUNET_PeerIdentity *id,
+ const struct GNUNET_CONFIGURATION_Handle *cfg,
+ struct GNUNET_TESTING_Daemon *d, const char *emsg)
+{
+ struct RestartContext *restart_context = cls;
+
+ if (emsg == NULL)
+ {
+ restart_context->peers_restarted++;
+ }
+ else
+ {
+ restart_context->peers_restart_failed++;
+ }
+
+ if (restart_context->peers_restarted == restart_context->peer_group->total)
+ {
+ restart_context->callback (restart_context->callback_cls, NULL);
+ GNUNET_free (restart_context);
+ }
+ else if (restart_context->peers_restart_failed +
+ restart_context->peers_restarted ==
+ restart_context->peer_group->total)
+ {
+ restart_context->callback (restart_context->callback_cls,
+ "Failed to restart peers!");
+ GNUNET_free (restart_context);
+ }
+
+}
+
+/**
+ * Callback for informing us about a successful
+ * or unsuccessful churn stop call.
+ *
+ * @param cls a ChurnContext
+ * @param emsg NULL on success, non-NULL on failure
+ *
+ */
+void
+churn_stop_callback (void *cls, const char *emsg)
+{
+ struct ShutdownContext *shutdown_ctx = cls;
+ struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
+ unsigned int total_left;
+ char *error_message;
+
+ error_message = NULL;
+ shutdown_ctx->outstanding--;
+
+ if (emsg != NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Churn stop callback failed with error `%s'\n", emsg);
+ churn_ctx->num_failed_stop++;
+ }
+ else
+ {
+ churn_ctx->num_to_stop--;
+ }
+
+#if DEBUG_CHURN
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Stopped peer, %d left.\n", churn_ctx->num_to_stop);
+#endif
+ total_left =
+ (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
+ (churn_ctx->num_to_start - churn_ctx->num_failed_start);
+
+ if (total_left == 0)
+ {
+ if ((churn_ctx->num_failed_stop > 0)
+ || (churn_ctx->num_failed_start > 0))
+ {
+ GNUNET_asprintf (&error_message,
+ "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
+ churn_ctx->num_failed_start,
+ churn_ctx->num_failed_stop);
+ }
+ churn_ctx->cb (churn_ctx->cb_cls, error_message);
+ GNUNET_free_non_null (error_message);
+ GNUNET_free (churn_ctx);
+ GNUNET_free (shutdown_ctx);
+ }
+}
+
+/**
+ * Count the number of running peers.
+ *
+ * @param pg handle for the peer group
+ *
+ * @return the number of currently running peers in the peer group
+ */
+unsigned int
+GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg)
+{
+ unsigned int i;
+ unsigned int running = 0;
+ for (i = 0; i < pg->total; i++)
+ {
+ if (pg->peers[i].daemon->running == GNUNET_YES)
+ {
+ GNUNET_assert (running != -1);
+ running++;
+ }
+ }
+ return running;
+}
+
+/**
+ * Task to rate limit the number of outstanding peer shutdown
+ * requests. This is necessary for making sure we don't do
+ * too many ssh connections at once, but is generally nicer
+ * to any system as well (graduated task starts, as opposed
+ * to calling gnunet-arm N times all at once).
+ */
+static void
+schedule_churn_shutdown_task (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PeerShutdownContext *peer_shutdown_ctx = cls;
+ struct ShutdownContext *shutdown_ctx;
+
+ GNUNET_assert (peer_shutdown_ctx != NULL);
+ shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
+ GNUNET_assert (shutdown_ctx != NULL);
+
+ if (shutdown_ctx->outstanding > MAX_CONCURRENT_SHUTDOWN)
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+ &schedule_churn_shutdown_task,
+ peer_shutdown_ctx);
+ else
+ {
+ shutdown_ctx->outstanding++;
+ GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
+ shutdown_ctx->timeout, shutdown_ctx->cb,
+ shutdown_ctx, GNUNET_NO, GNUNET_YES);
+ GNUNET_free (peer_shutdown_ctx);
+ }
+}
+
+/**
+ * Simulate churn by stopping some peers (and possibly
+ * re-starting others if churn is called multiple times). This
+ * function can only be used to create leave-join churn (peers "never"
+ * leave for good). First "voff" random peers that are currently
+ * online will be taken offline; then "von" random peers that are then
+ * offline will be put back online. No notifications will be
+ * generated for any of these operations except for the callback upon
+ * completion.
+ *
+ * @param pg handle for the peer group
+ * @param voff number of peers that should go offline
+ * @param von number of peers that should come back online;
+ * must be zero on first call (since "testbed_start"
+ * always starts all of the peers)
+ * @param timeout how long to wait for operations to finish before
+ * giving up
+ * @param cb function to call at the end
+ * @param cb_cls closure for cb
+ */
+void
+GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
+ unsigned int voff,
+ unsigned int von,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_TESTING_NotifyCompletion cb,
+ void *cb_cls)
+{
+ struct ChurnContext *churn_ctx;
+ struct ShutdownContext *shutdown_ctx;
+ struct PeerShutdownContext *peer_shutdown_ctx;
+ struct PeerRestartContext *peer_restart_ctx;
+ struct ChurnRestartContext *churn_startup_ctx;
+
+ unsigned int running;
+ unsigned int stopped;
+ unsigned int total_running;
+ unsigned int total_stopped;
+ unsigned int i;
+ unsigned int *running_arr;
+ unsigned int *stopped_arr;
+ unsigned int *running_permute;
+ unsigned int *stopped_permute;
+
+ running = 0;
+ stopped = 0;
+
+ if ((von == 0) && (voff == 0)) /* No peers at all? */
+ {
+ cb (cb_cls, NULL);
+ return;
+ }
+
+ for (i = 0; i < pg->total; i++)
+ {
+ if (pg->peers[i].daemon->running == GNUNET_YES)
+ {
+ GNUNET_assert (running != -1);
+ running++;
+ }
+ else
+ {
+ GNUNET_assert (stopped != -1);
+ stopped++;
+ }
+ }
+
+ if (voff > running)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Trying to stop more peers than are currently running!\n");
+ cb (cb_cls, "Trying to stop more peers than are currently running!");
+ return;
+ }
+
+ if (von > stopped)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Trying to start more peers than are currently stopped!\n");
+ cb (cb_cls, "Trying to start more peers than are currently stopped!");
+ return;
+ }
+
+ churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
+
+ running_arr = NULL;
+ if (running > 0)
+ running_arr = GNUNET_malloc (running * sizeof (unsigned int));
+
+ stopped_arr = NULL;
+ if (stopped > 0)
+ stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
+
+ running_permute = NULL;
+ stopped_permute = NULL;
+
+ if (running > 0)
+ running_permute =
+ GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, running);
+ if (stopped > 0)
+ stopped_permute =
+ GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, stopped);
+
+ total_running = running;
+ total_stopped = stopped;
+ running = 0;
+ stopped = 0;
+
+ churn_ctx->num_to_start = von;
+ churn_ctx->num_to_stop = voff;
+ churn_ctx->cb = cb;
+ churn_ctx->cb_cls = cb_cls;
+
+ for (i = 0; i < pg->total; i++)
+ {
+ if (pg->peers[i].daemon->running == GNUNET_YES)
+ {
+ GNUNET_assert ((running_arr != NULL) && (total_running > running));
+ running_arr[running] = i;
+ running++;
+ }
+ else
+ {
+ GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
+ stopped_arr[stopped] = i;
+ stopped++;
+ }
+ }
+
+ GNUNET_assert (running >= voff);
+ if (voff > 0)
+ {
+ shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
+ shutdown_ctx->cb = &churn_stop_callback;
+ shutdown_ctx->cb_cls = churn_ctx;
+ shutdown_ctx->total_peers = voff;
+ shutdown_ctx->timeout = timeout;
+ }
+
+ for (i = 0; i < voff; i++)
+ {
+#if DEBUG_CHURN
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Stopping peer %d!\n",
+ running_permute[i]);
+#endif
+ GNUNET_assert (running_arr != NULL);
+ peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
+ peer_shutdown_ctx->daemon =
+ pg->peers[running_arr[running_permute[i]]].daemon;
+ peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
+ GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task,
+ peer_shutdown_ctx);
+
+ /*
+ GNUNET_TESTING_daemon_stop (pg->peers[running_arr[running_permute[i]]].daemon,
+ timeout,
+ &churn_stop_callback, churn_ctx,
+ GNUNET_NO, GNUNET_YES); */
+ }
+
+ GNUNET_assert (stopped >= von);
+ if (von > 0)
+ {
+ churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
+ churn_startup_ctx->churn_ctx = churn_ctx;
+ churn_startup_ctx->timeout = timeout;
+ }
+ for (i = 0; i < von; i++)
+ {
+#if DEBUG_CHURN
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Starting up peer %d!\n",
+ stopped_permute[i]);
+#endif
+ GNUNET_assert (stopped_arr != NULL);
+ peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
+ peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
+ peer_restart_ctx->daemon =
+ pg->peers[stopped_arr[stopped_permute[i]]].daemon;
+ GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
+ /*
+ GNUNET_TESTING_daemon_start_stopped(pg->peers[stopped_arr[stopped_permute[i]]].daemon,
+ timeout, &churn_start_callback, churn_ctx); */
+ }
+
+ GNUNET_free_non_null (running_arr);
+ GNUNET_free_non_null (stopped_arr);
+ GNUNET_free_non_null (running_permute);
+ GNUNET_free_non_null (stopped_permute);
+}
+
+
+/**
+ * Restart all peers in the given group.
+ *
+ * @param pg the handle to the peer group
+ * @param callback function to call on completion (or failure)
+ * @param callback_cls closure for the callback function
+ */
+void
+GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
+ GNUNET_TESTING_NotifyCompletion callback,
+ void *callback_cls)
+{
+ struct RestartContext *restart_context;
+ unsigned int off;
+
+ if (pg->total > 0)
+ {
+ restart_context = GNUNET_malloc (sizeof (struct RestartContext));
+ restart_context->peer_group = pg;
+ restart_context->peers_restarted = 0;
+ restart_context->callback = callback;
+ restart_context->callback_cls = callback_cls;
+
+ for (off = 0; off < pg->total; off++)
+ {
+ GNUNET_TESTING_daemon_restart (pg->peers[off].daemon,
+ &restart_callback, restart_context);
+ }
+ }
+}
+
+/**
+ * Start or stop an individual peer from the given group.
+ *
+ * @param pg handle to the peer group
+ * @param offset which peer to start or stop
+ * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
+ * @param timeout how long to wait for shutdown
+ * @param cb function to call at the end
+ * @param cb_cls closure for cb
+ */
+void
+GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
+ unsigned int offset,
+ int desired_status,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
+{
+ struct ShutdownContext *shutdown_ctx;
+ struct ChurnRestartContext *startup_ctx;
+ struct ChurnContext *churn_ctx;
+
+ if (GNUNET_NO == desired_status)
+ {
+ if (NULL != pg->peers[offset].daemon)
+ {
+ shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
+ churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
+ churn_ctx->num_to_start = 0;
+ churn_ctx->num_to_stop = 1;
+ churn_ctx->cb = cb;
+ churn_ctx->cb_cls = cb_cls;
+ shutdown_ctx->cb_cls = churn_ctx;
+ GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon,
+ timeout, &churn_stop_callback,
+ shutdown_ctx, GNUNET_NO, GNUNET_YES);
+ }
+ }
+ else if (GNUNET_YES == desired_status)
+ {
+ if (NULL == pg->peers[offset].daemon)
+ {
+ startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
+ churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
+ churn_ctx->num_to_start = 1;
+ churn_ctx->num_to_stop = 0;
+ churn_ctx->cb = cb;
+ churn_ctx->cb_cls = cb_cls;
+ startup_ctx->churn_ctx = churn_ctx;
+ GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon,
+ timeout, &churn_start_callback,
+ startup_ctx);
+ }
+ }
+ else
+ GNUNET_break (0);
+}
+
+
+/**
+ * Callback for shutting down peers in a peer group.
+ *
+ * @param cls closure (struct ShutdownContext)
+ * @param emsg NULL on success
+ */
+void
+internal_shutdown_callback (void *cls, const char *emsg)
+{
+ struct ShutdownContext *shutdown_ctx = cls;
+
+ shutdown_ctx->outstanding--;
+ if (emsg == NULL)
+ {
+ shutdown_ctx->peers_down++;
+ }
+ else
+ {
+ shutdown_ctx->peers_failed++;
+ }
+
+ if ((shutdown_ctx->cb != NULL)
+ && (shutdown_ctx->peers_down + shutdown_ctx->peers_failed ==
+ shutdown_ctx->total_peers))
+ {
+ if (shutdown_ctx->peers_failed > 0)
+ shutdown_ctx->cb (shutdown_ctx->cb_cls,
+ "Not all peers successfully shut down!");
+ else
+ shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
+ GNUNET_free (shutdown_ctx);
+ }
+}
+
+
+/**
+ * Task to rate limit the number of outstanding peer shutdown
+ * requests. This is necessary for making sure we don't do
+ * too many ssh connections at once, but is generally nicer
+ * to any system as well (graduated task starts, as opposed
+ * to calling gnunet-arm N times all at once).
+ */
+static void
+schedule_shutdown_task (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PeerShutdownContext *peer_shutdown_ctx = cls;
+ struct ShutdownContext *shutdown_ctx;
+
+ GNUNET_assert (peer_shutdown_ctx != NULL);
+ shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
+ GNUNET_assert (shutdown_ctx != NULL);
+
+ if (shutdown_ctx->outstanding > MAX_CONCURRENT_SHUTDOWN)
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+ &schedule_shutdown_task, peer_shutdown_ctx);
+ else
+ {
+ shutdown_ctx->outstanding++;
+ GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
+ shutdown_ctx->timeout,
+ &internal_shutdown_callback, shutdown_ctx,
+ GNUNET_YES, GNUNET_NO);
+ GNUNET_free (peer_shutdown_ctx);
+ }
+}
+
/**
* Shutdown all peers started in the given group.
- *
+ *
* @param pg handle to the peer group
+ * @param timeout how long to wait for shutdown
+ * @param cb callback to notify upon success or failure
+ * @param cb_cls closure for cb
*/
void
-GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg)
+GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg,
+ struct GNUNET_TIME_Relative timeout,
+ GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
{
unsigned int off;
+ struct ShutdownContext *shutdown_ctx;
+ struct PeerShutdownContext *peer_shutdown_ctx;
+
+ GNUNET_assert (pg->total > 0);
+
+ shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
+ shutdown_ctx->cb = cb;
+ shutdown_ctx->cb_cls = cb_cls;
+ shutdown_ctx->total_peers = pg->total;
+ shutdown_ctx->timeout = timeout;
+ /* shtudown_ctx->outstanding = 0; */
for (off = 0; off < pg->total; off++)
{
- /* FIXME: should we wait for our
- continuations to be called here? This
- would require us to take a continuation
- as well... */
-
- if (NULL != pg->peers[off].daemon)
- GNUNET_TESTING_daemon_stop (pg->peers[off].daemon, NULL, NULL);
+ GNUNET_assert (NULL != pg->peers[off].daemon);
+ peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
+ peer_shutdown_ctx->daemon = pg->peers[off].daemon;
+ peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
+ GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
+ //GNUNET_TESTING_daemon_stop (pg->peers[off].daemon, timeout, shutdown_cb, shutdown_ctx, GNUNET_YES, GNUNET_NO);
if (NULL != pg->peers[off].cfg)
GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
+ if (pg->peers[off].allowed_peers != NULL)
+ GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
+ if (pg->peers[off].connect_peers != NULL)
+ GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
+ if (pg->peers[off].blacklisted_peers != NULL)
+ GNUNET_CONTAINER_multihashmap_destroy (pg->
+ peers[off].blacklisted_peers);
}
GNUNET_free (pg->peers);
- if (NULL != pg->hosts)
+ for (off = 0; off < pg->num_hosts; off++)
{
- GNUNET_free (pg->hosts[0].hostname);
- GNUNET_free (pg->hosts);
+ GNUNET_free (pg->hosts[off].hostname);
+ GNUNET_free_non_null (pg->hosts[off].username);
}
+ GNUNET_free_non_null (pg->hosts);
GNUNET_free (pg);
}
projects / oweals / gnunet.git / blobdiff