#include "gnunet_arm_service.h"
#include "gnunet_testing_lib.h"
-#define VERBOSE_TESTING GNUNET_YES
+#define VERBOSE_TESTING GNUNET_NO
+
+#define DEBUG_CHURN GNUNET_NO
/**
* Lowest port used for GNUnet testing. Should be high enough to not
*/
#define HIGH_PORT 32000
-#define MAX_OUTSTANDING_CONNECTIONS 30
+#define MAX_OUTSTANDING_CONNECTIONS 50
+
+#define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
+
+#define CONNECT_ATTEMPTS 8
+
+/**
+ * Prototype of a function called whenever two peers would be connected
+ * in a certain topology.
+ */
+typedef 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 CreateTopologyContext
+{
+
+ /**
+ * Function to call with number of connections
+ */
+ GNUNET_TESTING_NotifyConnections cont;
-#define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 180)
+ /**
+ * Closure for connection notification
+ */
+ void *cls;
+};
+#if OLD
struct PeerConnection
{
/*
struct GNUNET_TESTING_Daemon *daemon;
};
+#endif
/**
* 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;
+
+ /**
+ * Linked list of peer connections (pointers)
+ */
+ //struct PeerConnection *connected_peers;
+ /**
+ * 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;
};
*/
unsigned int total;
+ /**
+ * At what time should we fail the peer startup process?
+ */
+ struct GNUNET_TIME_Absolute max_timeout;
};
+/**
+ * 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));
+}
struct UpdateContext
{
struct GNUNET_CONFIGURATION_Handle *ret;
unsigned int nport;
+ const char *hostname;
};
*/
static int outstanding_connects;
+
/**
* Function to iterate over options. Copies
* the options to the target configuration,
GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
value = cval;
}
+
+ 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 hostname hostname of the controlling host, to allow control connections from
+ *
* @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, const char *hostname)
{
struct UpdateContext uc;
uint16_t orig;
+ char *control_host;
+ char *allowed_hosts;
orig = *port;
uc.nport = *port;
uc.ret = GNUNET_CONFIGURATION_create ();
+ uc.hostname = hostname;
+
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)
+ {
+ GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1;", control_host);
+ GNUNET_CONFIGURATION_set_value_string(uc.ret, "core", "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, "arm", "ACCEPT_FROM", allowed_hosts);
+ GNUNET_free(allowed_hosts);
+ }
+
*port = (uint16_t) uc.nport;
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)
+ * 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_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)
+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)
{
+ 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)
{
+ 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;
+}
+
+/*
+ * 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 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 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 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_t)-1LL)) / ( (double) (uint64_t) -1LL);
+#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;
+}
+
int
-create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg)
+create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int i, j;
int nodeToConnect;
int connect_attempts;
logNModifier = 0.5; /* FIXME: default value? */
- if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
"TESTING",
- "LOGNMODIFIER",
+ "LOGNMODIFIER",
&p_string))
{
if (sscanf(p_string, "%lf", &logNModifier) != 1)
pg->total);
}
smallWorldConnections +=
- add_connections (pg, i, randomPeer);
+ proc (pg, i, randomPeer);
}
else
{
nodeToConnect = nodeToConnect - pg->total;
}
connect_attempts +=
- add_connections (pg, i, nodeToConnect);
+ proc (pg, i, nodeToConnect);
}
}
static int
-create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg)
+create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int outer_count, inner_count;
unsigned int cutoff;
"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_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int i, j, k;
unsigned int square;
square = floor (sqrt (pg->total));
rows = square;
cols = square;
-
+
percentage = 0.5; /* FIXME: default percentage? */
if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
"TESTING",
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));
(uint64_t)-1LL)) / ( (double) (uint64_t) -1LL);
/* 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
+#if VERBOSE_TESTING > 2
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
_("Total connections added for small world: %d!\n"),
smallWorldConnections);
static int
-create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg)
+create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
{
double temp_rand;
unsigned int outer_count;
#endif
if (temp_rand < probability)
{
- connect_attempts += add_connections (pg, outer_count, inner_count);
+ connect_attempts += proc (pg, outer_count, inner_count);
}
}
}
}
static int
-create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg)
+create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int i;
unsigned int square;
"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)
"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_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);
}
}
static int
-create_ring (struct GNUNET_TESTING_PeerGroup *pg)
+create_ring (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
{
unsigned int count;
int connect_attempts;
"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;
}
-/*
- * Create the friend files based on the PeerConnection's
+/**
+ * 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
* to the appropriate place
*
{
FILE *temp_friend_handle;
unsigned int pg_iter;
- struct PeerConnection *connection_iter;
- struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
char *temp_service_path;
pid_t *pidarr;
char *arg;
- struct GNUNET_PeerIdentity *temppeer;
char * mytemp;
enum GNUNET_OS_ProcessStatusType type;
unsigned long return_code;
for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
{
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;
- }
-
+ 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 `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
"SERVICEHOME",
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(pidarr);
+ return ret;
+}
+
+
+/*
+ * 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 int
+create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg, char *transports)
+{
+ FILE *temp_file_handle;
+ static struct BlacklistContext blacklist_ctx;
+ unsigned int pg_iter;
+ char *temp_service_path;
+ pid_t *pidarr;
+ 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;
+
+ pidarr = GNUNET_malloc(sizeof(pid_t) * pg->total);
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ 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++)
+ {
+ 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];
+ }
+ }
+
+ GNUNET_free_non_null(temp_transports);
+ fclose(temp_file_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 `%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 */
+ {
+ GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
+ pidarr[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);
+ }
+ 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);
+ pidarr[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);
+#endif
+ 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 (pidarr[pg_iter] != 0) /* Check for already completed! */
+ {
+ if (GNUNET_OS_process_status(pidarr[pg_iter], &type, &return_code) != GNUNET_OK)
+ {
+ ret = GNUNET_SYSERR;
+ }
+ else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
+ {
+ ret = GNUNET_SYSERR;
+ }
+ else
+ {
+ pidarr[pg_iter] = 0;
+#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 blacklist files!\n"));
+#endif
GNUNET_free(pidarr);
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.
struct GNUNET_TESTING_PeerGroup *pg = cls;
outstanding_connects--;
- pg->notify_connection(pg->notify_connection_cls, first, second, first_cfg, second_cfg, first_daemon, second_daemon, emsg);
+ pg->notify_connection(pg->notify_connection_cls, first, second, first_cfg, second_cfg, first_daemon, second_daemon, emsg);
+
+}
+
+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(connect_context->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 3), &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->pg);
+ 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 PeerData *first = cls;
+ struct GNUNET_TESTING_Daemon *second = value;
+ struct ConnectContext *connect_context;
+
+ connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
+ connect_context->pg = first->pg;
+ connect_context->first = first->daemon;
+ connect_context->second = second;
+ GNUNET_SCHEDULER_add_now(first->pg->sched, &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
+ * @return the number of connections that will be attempted
+ */
+static int
+connect_topology (struct GNUNET_TESTING_PeerGroup *pg)
+{
+ unsigned int pg_iter;
+ int ret;
+ int total;
+#if OLD
+ struct PeerConnection *connection_iter;
+ struct ConnectContext *connect_context;
+#endif
+
+ total = 0;
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+ {
+ ret = GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers, &connect_iterator, &pg->peers[pg_iter]);
+ if (GNUNET_SYSERR == ret)
+ return GNUNET_SYSERR;
+
+ total = total + ret;
+
+#if OLD
+ connection_iter = ;
+ while (connection_iter != NULL)
+ {
+ connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
+ connect_context->pg = pg;
+ connect_context->first = ;
+ connect_context->second = connection_iter->daemon;
+ GNUNET_SCHEDULER_add_now(pg->sched, &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 direct TCP connections 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 allow only direct TCP connections 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
+ */
+int
+GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
+ enum GNUNET_TESTING_Topology topology,
+ enum GNUNET_TESTING_Topology restrict_topology,
+ char *restrict_transports)
+{
+ int ret;
+ int num_connections;
+ int unblacklisted_connections;
+
+ GNUNET_assert (pg->notify_connection != NULL);
+ ret = GNUNET_OK;
+
+ 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_NONE:
+ num_connections = 0;
+ break;
+ default:
+ num_connections = 0;
+ break;
+ }
+ if (num_connections < 1)
+ return GNUNET_SYSERR;
+
+ 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,
+ _("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. */
+ 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_NONE:
+ /* Fall through */
+ 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 GNUNET_SYSERR;
+ }
+ else
+ {
+#if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Blacklist files created/copied successfully!\n"));
+#endif
+ }
+ }
+ 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_t)-1LL)) / ( (double) (uint64_t) -1LL);
+ 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)?
+ */
+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;
+ pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(pg->total);
+ 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;
+ fprintf(stderr, "Finished! Hashmap size %u\n", GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers));
+ }
}
-static void schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+
+static unsigned int count_workingset_connections(struct GNUNET_TESTING_PeerGroup *pg)
{
- struct ConnectContext *connect_context = cls;
+ unsigned int count;
+ unsigned int pg_iter;
- if (outstanding_connects > MAX_OUTSTANDING_CONNECTIONS)
+ count = 0;
+
+ for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
{
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Delaying connect, we have too many outstanding connections!\n"));
-#endif
- GNUNET_SCHEDULER_add_delayed(connect_context->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 3), &schedule_connect, connect_context);
+ count += GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set);
}
- else
+
+ 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++)
{
-#if VERBOSE_TESTING
- 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,
- &internal_connect_notify,
- connect_context->pg);
- GNUNET_free(connect_context);
+ count += GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers);
}
+
+ return count;
}
-/*
- * Connect the topology as specified by the PeerConnection's
- * of each peer in the peer group
+/**
+ * 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 peer group we are dealing with
+ * @param pg the peergroup we are dealing with
+ * @param num how many connections at least should each peer have (if possible)?
*/
-static void
-connect_topology (struct GNUNET_TESTING_PeerGroup *pg)
+void
+perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
{
- unsigned int pg_iter;
- struct PeerConnection *connection_iter;
- struct ConnectContext *connect_context;
+ 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++)
{
- connection_iter = pg->peers[pg_iter].connected_peers;
- while (connection_iter != NULL)
- {
- connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
- connect_context->pg = pg;
- connect_context->first = pg->peers[pg_iter].daemon;
- connect_context->second = connection_iter->daemon;
-
- GNUNET_SCHEDULER_add_now(pg->sched, &schedule_connect, connect_context);
- /*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;
+ pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(num);
+ }
- /*if (outstanding_connects > MAX_OUTSTANDING_CONNECTS)
+ 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 VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Sleeping to give peers a chance to connect!\n"));
-#endif
- sleep(2);
- } */
+ 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++)
+ {
-/*
- * 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.
+ }
+
+ 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;
+ fprintf(stderr, "Finished! Hashmap size %u\n", GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers));
+ }
+
+}
+
+/**
+ * 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
- *
- * @return the number of connections should be created by the topology, so the
- * caller knows how many to wait for (if it so chooses)
- *
+ * @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
+ * @return the number of connections that will be attempted, GNUNET_SYSERR on error
*/
int
-GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg)
+GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
+ enum GNUNET_TESTING_Topology topology,
+ enum GNUNET_TESTING_TopologyOption options,
+ double option_modifier)
{
- unsigned long long topology_num;
- int ret;
- int num_connections;
-
- GNUNET_assert (pg->notify_connection != NULL);
- ret = GNUNET_OK;
- if (GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_number (pg->cfg, "testing", "topology",
- &topology_num))
- {
- switch (topology_num)
- {
- case GNUNET_TESTING_TOPOLOGY_CLIQUE:
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating clique topology (may take a bit!)\n"));
-#endif
- num_connections = create_clique (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating small world (ring) topology (may take a bit!)\n"));
-#endif
- num_connections = create_small_world_ring (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating small world (2d-torus) topology (may take a bit!)\n"));
-#endif
- num_connections = create_small_world (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_RING:
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating ring topology (may take a bit!)\n"));
-#endif
- num_connections = create_ring (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating 2d torus topology (may take a bit!)\n"));
-#endif
- num_connections = create_2d_torus (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating Erdos-Renyi topology (may take a bit!)\n"));
-#endif
- num_connections = create_erdos_renyi (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_INTERNAT:
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Creating InterNAT topology (may take a bit!)\n"));
-#endif
- num_connections = create_nated_internet (pg);
- break;
- case GNUNET_TESTING_TOPOLOGY_NONE:
- num_connections = 0;
- break;
- default:
- num_connections = 0;
- break;
- }
- if (num_connections < 1)
+ switch (topology)
+ {
+ case GNUNET_TESTING_TOPOLOGY_CLIQUE:
+ #if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating clique topology\n"));
+ #endif
+ create_clique (pg, &add_actual_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
+ create_small_world_ring (pg, &add_actual_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
+ create_small_world (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_RING:
+ #if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating ring topology\n"));
+ #endif
+ create_ring (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
+ #if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating 2d torus topology\n"));
+ #endif
+ create_2d_torus (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
+ #if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating Erdos-Renyi topology\n"));
+ #endif
+ create_erdos_renyi (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_INTERNAT:
+ #if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating InterNAT topology\n"));
+ #endif
+ create_nated_internet (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
+ #if VERBOSE_TESTING
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Creating Scale Free topology\n"));
+ #endif
+ create_scale_free (pg, &add_actual_connections);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_NONE:
+ copy_allowed_topology(pg);
+ break;
+ default:
+ GNUNET_log(GNUNET_ERROR_TYPE_WARNING,
+ _("Unknown topology specification, can't connect peers!\n"));
return GNUNET_SYSERR;
+ }
- if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
- ret = create_and_copy_friend_files(pg);
- if (ret == GNUNET_OK)
- connect_topology(pg);
- else
- {
-#if VERBOSE_TESTING
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- _("Failed during friend file copying!\n"));
-#endif
- return GNUNET_SYSERR;
- }
- }
- else
+ switch (options)
{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("No topology specified, was one intended?\n"));
- return GNUNET_SYSERR;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
+ choose_random_connections(pg, option_modifier);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
+ choose_minimum(pg, (unsigned int)option_modifier);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
+ perform_dfs(pg, (int)option_modifier);
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
+ break;
+ case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
+ break;
+ default:
+ break;
}
- return num_connections;
+ return connect_topology(pg);
+}
+
+/**
+ * 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;
+
+ for (i = 0; i < pg->total; i++)
+ {
+ GNUNET_TESTING_daemon_continue_startup(pg->peers[i].daemon);
+ }
}
/**
* 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 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
GNUNET_TESTING_daemons_start (struct GNUNET_SCHEDULER_Handle *sched,
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
GNUNET_break (0);
return NULL;
}
+
pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
pg->sched = sched;
pg->cfg = cfg;
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)
{
if (hostcnt > 0)
{
hostname = pg->hosts[off % hostcnt].hostname;
- pcfg = make_config (cfg, &pg->hosts[off % hostcnt].minport);
+ pcfg = make_config (cfg, &pg->hosts[off % hostcnt].minport, hostname);
}
else
{
hostname = NULL;
- pcfg = make_config (cfg, &minport);
+ pcfg = make_config (cfg, &minport, hostname);
}
+
if (NULL == pcfg)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"SERVICEHOME", newservicehome);
GNUNET_free (newservicehome);
pg->peers[off].cfg = pcfg;
+ 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].daemon = GNUNET_TESTING_daemon_start (sched,
pcfg,
+ timeout,
hostname,
+ hostkey_callback,
+ hostkey_cls,
cb, cb_cls);
if (NULL == pg->peers[off].daemon)
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
_("Could not start peer number %u!\n"), off);
+
}
return pg;
}
return NULL;
}
+/**
+ * Prototype of a function that will be called when a
+ * particular operation was completed the testing library.
+ *
+ * @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 ChurnContext *churn_ctx = cls;
+ 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_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);
+ }
+}
+
+/**
+ * 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 ChurnContext *churn_ctx = cls;
+ 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);
+ }
+
+}
+
+/**
+ * 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;
+ unsigned int running;
+ unsigned int 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)
+ {
+ running++;
+ }
+ else
+ {
+ 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 = GNUNET_malloc(running * sizeof(unsigned int));
+ 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);
+
+ 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)
+ {
+ running_arr[running] = i;
+ running++;
+ }
+ else
+ {
+ stopped_arr[stopped] = i;
+ stopped++;
+ }
+ }
+
+ for (i = 0; i < voff; i++)
+ {
+#if DEBUG_CHURN
+ GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Stopping peer %d!\n", running_permute[i]);
+#endif
+ GNUNET_TESTING_daemon_stop(pg->peers[running_arr[running_permute[i]]].daemon, timeout, &churn_stop_callback, churn_ctx, GNUNET_NO, GNUNET_YES);
+ }
+
+ 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_TESTING_daemon_start_stopped(pg->peers[stopped_arr[stopped_permute[i]]].daemon, timeout, &churn_start_callback, churn_ctx);
+ }
+
+ GNUNET_free(running_arr);
+ GNUNET_free(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);
+ }
+ }
+}
+
/**
* Shutdown all peers started in the given group.
- *
+ *
* @param pg handle to the peer group
+ * @param timeout how long to wait for shutdown
+ *
*/
void
-GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg)
+GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_TIME_Relative timeout)
{
unsigned int off;
- struct PeerConnection *pos;
- struct PeerConnection *next;
for (off = 0; off < pg->total; off++)
{
as well... */
if (NULL != pg->peers[off].daemon)
- GNUNET_TESTING_daemon_stop (pg->peers[off].daemon, NULL, NULL);
+ GNUNET_TESTING_daemon_stop (pg->peers[off].daemon, timeout, NULL, NULL, GNUNET_YES, GNUNET_NO);
if (NULL != pg->peers[off].cfg)
GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
- pos = pg->peers[off].connected_peers;
- while (pos != NULL)
- {
- next = pos->next;
- GNUNET_free(pos);
- pos = next;
- }
+ 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);
projects / oweals / gnunet.git / blobdiff