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[gnunet] 134/164: -SETU: fix indentation


From: gnunet
Subject: [gnunet] 134/164: -SETU: fix indentation
Date: Fri, 30 Jul 2021 15:33:20 +0200

This is an automated email from the git hooks/post-receive script.

grothoff pushed a commit to branch master
in repository gnunet.

commit 3f0a714ef3a03417a135fab99ad7261a1f905985
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Mon Jun 7 14:39:45 2021 +0200

    -SETU: fix indentation
---
 src/setu/gnunet-service-setu.c                  | 6447 +++++++++++------------
 src/setu/gnunet-service-setu_protocol.h         |   38 +-
 src/setu/gnunet-service-setu_strata_estimator.h |   20 +-
 src/setu/ibf.h                                  |   26 +-
 src/setu/perf_setu_api.c                        |   63 +-
 src/setu/setu.h                                 |   84 +-
 6 files changed, 3339 insertions(+), 3339 deletions(-)

diff --git a/src/setu/gnunet-service-setu.c b/src/setu/gnunet-service-setu.c
index c9f17d934..048e0202f 100644
--- a/src/setu/gnunet-service-setu.c
+++ b/src/setu/gnunet-service-setu.c
@@ -76,7 +76,6 @@
 #define MAX_IBF_SIZE 1048576
 
 
-
 /**
  * Minimal size of an ibf
  * Based on the bsc thesis of Elias Summermatter (2021)
@@ -114,66 +113,66 @@
  */
 enum UnionOperationPhase
 {
-    /**
-     * We sent the request message, and expect a strata estimator.
-     */
-    PHASE_EXPECT_SE,
+  /**
+   * We sent the request message, and expect a strata estimator.
+   */
+  PHASE_EXPECT_SE,
 
-    /**
-     * We sent the strata estimator, and expect an IBF. This phase is entered 
once
-     * upon initialization and later via #PHASE_EXPECT_ELEMENTS_AND_REQUESTS.
-     *
-     * XXX: could use better wording.
-     * XXX: repurposed to also expect a "request full set" message, should be 
renamed
-     *
-     * After receiving the complete IBF, we enter #PHASE_EXPECT_ELEMENTS
-     */
-    PHASE_EXPECT_IBF,
+  /**
+   * We sent the strata estimator, and expect an IBF. This phase is entered 
once
+   * upon initialization and later via #PHASE_EXPECT_ELEMENTS_AND_REQUESTS.
+   *
+   * XXX: could use better wording.
+   * XXX: repurposed to also expect a "request full set" message, should be 
renamed
+   *
+   * After receiving the complete IBF, we enter #PHASE_EXPECT_ELEMENTS
+   */
+  PHASE_EXPECT_IBF,
 
-    /**
-     * Continuation for multi part IBFs.
-     */
-    PHASE_EXPECT_IBF_LAST,
+  /**
+   * Continuation for multi part IBFs.
+   */
+  PHASE_EXPECT_IBF_LAST,
 
-    /**
-     * We are decoding an IBF.
-     */
-    PHASE_ACTIVE_DECODING,
+  /**
+   * We are decoding an IBF.
+   */
+  PHASE_ACTIVE_DECODING,
 
-    /**
-     * The other peer is decoding the IBF we just sent.
-     */
-    PHASE_PASSIVE_DECODING,
+  /**
+   * The other peer is decoding the IBF we just sent.
+   */
+  PHASE_PASSIVE_DECODING,
 
-    /**
-     * The protocol is almost finished, but we still have to flush our message
-     * queue and/or expect some elements.
-     */
-    PHASE_FINISH_CLOSING,
+  /**
+   * The protocol is almost finished, but we still have to flush our message
+   * queue and/or expect some elements.
+   */
+  PHASE_FINISH_CLOSING,
 
-    /**
-     * In the penultimate phase, we wait until all our demands are satisfied.
-     * Then we send a done message, and wait for another done message.
-     */
-    PHASE_FINISH_WAITING,
+  /**
+   * In the penultimate phase, we wait until all our demands are satisfied.
+   * Then we send a done message, and wait for another done message.
+   */
+  PHASE_FINISH_WAITING,
 
-    /**
-     * In the ultimate phase, we wait until our demands are satisfied and then
-     * quit (sending another DONE message).
-     */
-    PHASE_FINISHED,
+  /**
+   * In the ultimate phase, we wait until our demands are satisfied and then
+   * quit (sending another DONE message).
+   */
+  PHASE_FINISHED,
 
-    /**
-     * After sending the full set, wait for responses with the elements
-     * that the local peer is missing.
-     */
-    PHASE_FULL_SENDING,
+  /**
+   * After sending the full set, wait for responses with the elements
+   * that the local peer is missing.
+   */
+  PHASE_FULL_SENDING,
 
-    /**
-     * Phase that receives full set first and then sends elements that are
-     * the local peer missing
-     */
-    PHASE_FULL_RECEIVING
+  /**
+   * Phase that receives full set first and then sends elements that are
+   * the local peer missing
+   */
+  PHASE_FULL_RECEIVING
 };
 
 /**
@@ -182,20 +181,20 @@ enum UnionOperationPhase
 
 enum MODE_OF_OPERATION
 {
-    /**
-     * Mode just synchronizes the difference between sets
-     */
-    DIFFERENTIAL_SYNC,
+  /**
+   * Mode just synchronizes the difference between sets
+   */
+  DIFFERENTIAL_SYNC,
 
-    /**
-    * Mode send full set sending local set first
-    */
-    FULL_SYNC_LOCAL_SENDING_FIRST,
+  /**
+  * Mode send full set sending local set first
+  */
+  FULL_SYNC_LOCAL_SENDING_FIRST,
 
-    /**
-    * Mode request full set from remote peer
-    */
-    FULL_SYNC_REMOTE_SENDING_FIRST
+  /**
+  * Mode request full set from remote peer
+  */
+  FULL_SYNC_REMOTE_SENDING_FIRST
 };
 
 
@@ -207,28 +206,28 @@ enum MODE_OF_OPERATION
  */
 struct ElementEntry
 {
-    /**
-     * The actual element. The data for the element
-     * should be allocated at the end of this struct.
-     */
-    struct GNUNET_SETU_Element element;
+  /**
+   * The actual element. The data for the element
+   * should be allocated at the end of this struct.
+   */
+  struct GNUNET_SETU_Element element;
 
-    /**
-     * Hash of the element.  For set union: Will be used to derive the
-     * different IBF keys for different salts.
-     */
-    struct GNUNET_HashCode element_hash;
+  /**
+   * Hash of the element.  For set union: Will be used to derive the
+   * different IBF keys for different salts.
+   */
+  struct GNUNET_HashCode element_hash;
 
-    /**
-     * First generation that includes this element.
-     */
-    unsigned int generation;
+  /**
+   * First generation that includes this element.
+   */
+  unsigned int generation;
 
-    /**
-     * #GNUNET_YES if the element is a remote element, and does not belong
-     * to the operation's set.
-     */
-    int remote;
+  /**
+   * #GNUNET_YES if the element is a remote element, and does not belong
+   * to the operation's set.
+   */
+  int remote;
 };
 
 
@@ -250,25 +249,25 @@ struct Set;
  */
 struct ClientState
 {
-    /**
-     * Set, if associated with the client, otherwise NULL.
-     */
-    struct Set *set;
+  /**
+   * Set, if associated with the client, otherwise NULL.
+   */
+  struct Set *set;
 
-    /**
-     * Listener, if associated with the client, otherwise NULL.
-     */
-    struct Listener *listener;
+  /**
+   * Listener, if associated with the client, otherwise NULL.
+   */
+  struct Listener *listener;
 
-    /**
-     * Client handle.
-     */
-    struct GNUNET_SERVICE_Client *client;
+  /**
+   * Client handle.
+   */
+  struct GNUNET_SERVICE_Client *client;
 
-    /**
-     * Message queue.
-     */
-    struct GNUNET_MQ_Handle *mq;
+  /**
+   * Message queue.
+   */
+  struct GNUNET_MQ_Handle *mq;
 };
 
 
@@ -278,253 +277,253 @@ struct ClientState
 struct Operation
 {
 
-    /**
-     * The identity of the requesting peer.  Needs to
-     * be stored here as the op spec might not have been created yet.
-     */
-    struct GNUNET_PeerIdentity peer;
+  /**
+   * The identity of the requesting peer.  Needs to
+   * be stored here as the op spec might not have been created yet.
+   */
+  struct GNUNET_PeerIdentity peer;
 
-    /**
-     * Initial size of our set, just before the operation started.
-     */
-    uint64_t initial_size;
+  /**
+   * Initial size of our set, just before the operation started.
+   */
+  uint64_t initial_size;
 
-    /**
-     * Kept in a DLL of the listener, if @e listener is non-NULL.
-     */
-    struct Operation *next;
+  /**
+   * Kept in a DLL of the listener, if @e listener is non-NULL.
+   */
+  struct Operation *next;
 
-    /**
-     * Kept in a DLL of the listener, if @e listener is non-NULL.
-     */
-    struct Operation *prev;
+  /**
+   * Kept in a DLL of the listener, if @e listener is non-NULL.
+   */
+  struct Operation *prev;
 
-    /**
-     * Channel to the peer.
-     */
-    struct GNUNET_CADET_Channel *channel;
+  /**
+   * Channel to the peer.
+   */
+  struct GNUNET_CADET_Channel *channel;
 
-    /**
-     * Port this operation runs on.
-     */
-    struct Listener *listener;
+  /**
+   * Port this operation runs on.
+   */
+  struct Listener *listener;
 
-    /**
-     * Message queue for the channel.
-     */
-    struct GNUNET_MQ_Handle *mq;
+  /**
+   * Message queue for the channel.
+   */
+  struct GNUNET_MQ_Handle *mq;
 
-    /**
-     * Context message, may be NULL.
-     */
-    struct GNUNET_MessageHeader *context_msg;
+  /**
+   * Context message, may be NULL.
+   */
+  struct GNUNET_MessageHeader *context_msg;
 
-    /**
-     * Set associated with the operation, NULL until the spec has been
-     * associated with a set.
-     */
-    struct Set *set;
+  /**
+   * Set associated with the operation, NULL until the spec has been
+   * associated with a set.
+   */
+  struct Set *set;
 
-    /**
-     * Copy of the set's strata estimator at the time of
-     * creation of this operation.
-     */
-    struct MultiStrataEstimator *se;
+  /**
+   * Copy of the set's strata estimator at the time of
+   * creation of this operation.
+   */
+  struct MultiStrataEstimator *se;
 
-    /**
-     * The IBF we currently receive.
-     */
-    struct InvertibleBloomFilter *remote_ibf;
+  /**
+   * The IBF we currently receive.
+   */
+  struct InvertibleBloomFilter *remote_ibf;
 
-    /**
-     * The IBF with the local set's element.
-     */
-    struct InvertibleBloomFilter *local_ibf;
+  /**
+   * The IBF with the local set's element.
+   */
+  struct InvertibleBloomFilter *local_ibf;
 
-    /**
-     * Maps unsalted IBF-Keys to elements.
-     * Used as a multihashmap, the keys being the lower 32bit of the IBF-Key.
-     * Colliding IBF-Keys are linked.
-     */
-    struct GNUNET_CONTAINER_MultiHashMap32 *key_to_element;
+  /**
+   * Maps unsalted IBF-Keys to elements.
+   * Used as a multihashmap, the keys being the lower 32bit of the IBF-Key.
+   * Colliding IBF-Keys are linked.
+   */
+  struct GNUNET_CONTAINER_MultiHashMap32 *key_to_element;
 
-    /**
-     * Timeout task, if the incoming peer has not been accepted
-     * after the timeout, it will be disconnected.
-     */
-    struct GNUNET_SCHEDULER_Task *timeout_task;
+  /**
+   * Timeout task, if the incoming peer has not been accepted
+   * after the timeout, it will be disconnected.
+   */
+  struct GNUNET_SCHEDULER_Task *timeout_task;
 
-    /**
-     * Hashes for elements that we have demanded from the other peer.
-     */
-    struct GNUNET_CONTAINER_MultiHashMap *demanded_hashes;
+  /**
+   * Hashes for elements that we have demanded from the other peer.
+   */
+  struct GNUNET_CONTAINER_MultiHashMap *demanded_hashes;
 
-    /**
-     * Current state of the operation.
-     */
-    enum UnionOperationPhase phase;
+  /**
+   * Current state of the operation.
+   */
+  enum UnionOperationPhase phase;
 
-    /**
-     * Did we send the client that we are done?
-     */
-    int client_done_sent;
+  /**
+   * Did we send the client that we are done?
+   */
+  int client_done_sent;
 
-    /**
-     * Number of ibf buckets already received into the @a remote_ibf.
-     */
-    uint64_t ibf_buckets_received;
+  /**
+   * Number of ibf buckets already received into the @a remote_ibf.
+   */
+  uint64_t ibf_buckets_received;
 
-    /**
-     * Salt that we're using for sending IBFs
-     */
-    uint32_t salt_send;
+  /**
+   * Salt that we're using for sending IBFs
+   */
+  uint32_t salt_send;
 
-    /**
-     * Salt for the IBF we've received and that we're currently decoding.
-     */
-    uint32_t salt_receive;
+  /**
+   * Salt for the IBF we've received and that we're currently decoding.
+   */
+  uint32_t salt_receive;
 
-    /**
-     * Number of elements we received from the other peer
-     * that were not in the local set yet.
-     */
-    uint32_t received_fresh;
+  /**
+   * Number of elements we received from the other peer
+   * that were not in the local set yet.
+   */
+  uint32_t received_fresh;
 
-    /**
-     * Total number of elements received from the other peer.
-     */
-    uint32_t received_total;
+  /**
+   * Total number of elements received from the other peer.
+   */
+  uint32_t received_total;
 
-    /**
-     * Salt to use for the operation.
-     */
-    uint32_t salt;
+  /**
+   * Salt to use for the operation.
+   */
+  uint32_t salt;
 
-    /**
-     * Remote peers element count
-     */
-    uint32_t remote_element_count;
+  /**
+   * Remote peers element count
+   */
+  uint32_t remote_element_count;
 
-    /**
-     * ID used to identify an operation between service and client
-     */
-    uint32_t client_request_id;
+  /**
+   * ID used to identify an operation between service and client
+   */
+  uint32_t client_request_id;
 
-    /**
-     * Always use delta operation instead of sending full sets,
-     * even it it's less efficient.
-     */
-    int force_delta;
+  /**
+   * Always use delta operation instead of sending full sets,
+   * even it it's less efficient.
+   */
+  int force_delta;
 
-    /**
-     * Always send full sets, even if delta operations would
-     * be more efficient.
-     */
-    int force_full;
+  /**
+   * Always send full sets, even if delta operations would
+   * be more efficient.
+   */
+  int force_full;
 
-    /**
-     * #GNUNET_YES to fail operations where Byzantine faults
-     * are suspected
-     */
-    int byzantine;
+  /**
+   * #GNUNET_YES to fail operations where Byzantine faults
+   * are suspected
+   */
+  int byzantine;
 
-    /**
-     * #GNUNET_YES to also send back set elements we are sending to
-     * the remote peer.
-     */
-    int symmetric;
+  /**
+   * #GNUNET_YES to also send back set elements we are sending to
+   * the remote peer.
+   */
+  int symmetric;
 
-    /**
-     * Lower bound for the set size, used only when
-     * byzantine mode is enabled.
-     */
-    uint64_t byzantine_lower_bound;
+  /**
+   * Lower bound for the set size, used only when
+   * byzantine mode is enabled.
+   */
+  uint64_t byzantine_lower_bound;
 
-    /**
-     * Unique request id for the request from a remote peer, sent to the
-     * client, which will accept or reject the request.  Set to '0' iff
-     * the request has not been suggested yet.
-     */
-    uint32_t suggest_id;
+  /**
+   * Unique request id for the request from a remote peer, sent to the
+   * client, which will accept or reject the request.  Set to '0' iff
+   * the request has not been suggested yet.
+   */
+  uint32_t suggest_id;
 
-    /**
-     * Generation in which the operation handle
-     * was created.
-     */
-    unsigned int generation_created;
+  /**
+   * Generation in which the operation handle
+   * was created.
+   */
+  unsigned int generation_created;
 
 
-    /**
-    * User defined Bandwidth Round Trips Tradeoff
-    */
-    uint64_t rtt_bandwidth_tradeoff;
+  /**
+  * User defined Bandwidth Round Trips Tradeoff
+  */
+  uint64_t rtt_bandwidth_tradeoff;
 
 
-    /**
-    * Number of Element per bucket  in IBF
-    */
-    uint8_t ibf_number_buckets_per_element;
+  /**
+  * Number of Element per bucket  in IBF
+  */
+  uint8_t ibf_number_buckets_per_element;
 
 
-    /**
-     * Set difference is multiplied with this factor
-     * to gennerate large enought IBF
-     */
-    uint8_t ibf_bucket_number_factor;
+  /**
+   * Set difference is multiplied with this factor
+   * to gennerate large enought IBF
+   */
+  uint8_t ibf_bucket_number_factor;
 
-    /**
-     *  Defines which site a client is
-     *  0 = Initiating peer
-     *  1 = Receiving peer
-     */
-    uint8_t peer_site;
+  /**
+   *  Defines which site a client is
+   *  0 = Initiating peer
+   *  1 = Receiving peer
+   */
+  uint8_t peer_site;
 
 
-    /**
-     * Local peer element count
-     */
-    uint64_t local_element_count;
+  /**
+   * Local peer element count
+   */
+  uint64_t local_element_count;
 
-    /**
-     * Mode of operation that was chosen by the algorithm
-     */
-    uint8_t mode_of_operation;
+  /**
+   * Mode of operation that was chosen by the algorithm
+   */
+  uint8_t mode_of_operation;
 
-    /**
-     * Hashmap to keep track of the send/received messages
-     */
-    struct GNUNET_CONTAINER_MultiHashMap *message_control_flow;
+  /**
+   * Hashmap to keep track of the send/received messages
+   */
+  struct GNUNET_CONTAINER_MultiHashMap *message_control_flow;
 
-    /**
-    * Hashmap to keep track of the send/received inquiries (ibf keys)
-    */
-    struct GNUNET_CONTAINER_MultiHashMap *inquiries_sent;
+  /**
+  * Hashmap to keep track of the send/received inquiries (ibf keys)
+  */
+  struct GNUNET_CONTAINER_MultiHashMap *inquiries_sent;
 
 
-    /**
-    * Total size of local set
-    */
-    uint64_t total_elements_size_local;
+  /**
+  * Total size of local set
+  */
+  uint64_t total_elements_size_local;
 
-    /**
-     * Limit of number of elements in set
-     */
-    uint64_t byzantine_upper_bound;
+  /**
+   * Limit of number of elements in set
+   */
+  uint64_t byzantine_upper_bound;
 
-    /**
-     * is the count of already passed differential sync iterations
-     */
-    uint8_t differential_sync_iterations;
+  /**
+   * is the count of already passed differential sync iterations
+   */
+  uint8_t differential_sync_iterations;
 
-    /**
-     * Estimated or committed set difference at the start
-    */
-    uint64_t remote_set_diff;
+  /**
+   * Estimated or committed set difference at the start
+  */
+  uint64_t remote_set_diff;
 
-    /**
-    * Estimated or committed set difference at the start
-    */
-    uint64_t local_set_diff;
+  /**
+  * Estimated or committed set difference at the start
+  */
+  uint64_t local_set_diff;
 };
 
 
@@ -534,35 +533,35 @@ struct Operation
  */
 struct SetContent
 {
-    /**
-     * Maps `struct GNUNET_HashCode *` to `struct ElementEntry *`.
-     */
-    struct GNUNET_CONTAINER_MultiHashMap *elements;
+  /**
+   * Maps `struct GNUNET_HashCode *` to `struct ElementEntry *`.
+   */
+  struct GNUNET_CONTAINER_MultiHashMap *elements;
 
-    /**
-     * Maps `struct GNUNET_HashCode *` to `struct ElementEntry *` randomized.
-     */
-    struct GNUNET_CONTAINER_MultiHashMap *elements_randomized;
+  /**
+   * Maps `struct GNUNET_HashCode *` to `struct ElementEntry *` randomized.
+   */
+  struct GNUNET_CONTAINER_MultiHashMap *elements_randomized;
 
-    /**
-     * Salt to construct the randomized element map
-     */
-    uint64_t elements_randomized_salt;
+  /**
+   * Salt to construct the randomized element map
+   */
+  uint64_t elements_randomized_salt;
 
-    /**
-     * Number of references to the content.
-     */
-    unsigned int refcount;
+  /**
+   * Number of references to the content.
+   */
+  unsigned int refcount;
 
-    /**
-     * FIXME: document!
-     */
-    unsigned int latest_generation;
+  /**
+   * FIXME: document!
+   */
+  unsigned int latest_generation;
 
-    /**
-     * Number of concurrently active iterators.
-     */
-    int iterator_count;
+  /**
+   * Number of concurrently active iterators.
+   */
+  int iterator_count;
 };
 
 
@@ -571,49 +570,49 @@ struct SetContent
  */
 struct Set
 {
-    /**
-     * Sets are held in a doubly linked list (in `sets_head` and `sets_tail`).
-     */
-    struct Set *next;
+  /**
+   * Sets are held in a doubly linked list (in `sets_head` and `sets_tail`).
+   */
+  struct Set *next;
 
-    /**
-     * Sets are held in a doubly linked list.
-     */
-    struct Set *prev;
+  /**
+   * Sets are held in a doubly linked list.
+   */
+  struct Set *prev;
 
-    /**
-     * Client that owns the set.  Only one client may own a set,
-     * and there can only be one set per client.
-     */
-    struct ClientState *cs;
+  /**
+   * Client that owns the set.  Only one client may own a set,
+   * and there can only be one set per client.
+   */
+  struct ClientState *cs;
 
-    /**
-     * Content, possibly shared by multiple sets,
-     * and thus reference counted.
-     */
-    struct SetContent *content;
+  /**
+   * Content, possibly shared by multiple sets,
+   * and thus reference counted.
+   */
+  struct SetContent *content;
 
-    /**
-     * The strata estimator is only generated once for each set.  The IBF keys
-     * are derived from the element hashes with salt=0.
-     */
-    struct MultiStrataEstimator *se;
+  /**
+   * The strata estimator is only generated once for each set.  The IBF keys
+   * are derived from the element hashes with salt=0.
+   */
+  struct MultiStrataEstimator *se;
 
-    /**
-     * Evaluate operations are held in a linked list.
-     */
-    struct Operation *ops_head;
+  /**
+   * Evaluate operations are held in a linked list.
+   */
+  struct Operation *ops_head;
 
-    /**
-     * Evaluate operations are held in a linked list.
-     */
-    struct Operation *ops_tail;
+  /**
+   * Evaluate operations are held in a linked list.
+   */
+  struct Operation *ops_tail;
 
-    /**
-     * Current generation, that is, number of previously executed
-     * operations and lazy copies on the underlying set content.
-     */
-    unsigned int current_generation;
+  /**
+   * Current generation, that is, number of previously executed
+   * operations and lazy copies on the underlying set content.
+   */
+  unsigned int current_generation;
 
 };
 
@@ -623,25 +622,25 @@ struct Set
  */
 struct KeyEntry
 {
-    /**
-     * IBF key for the entry, derived from the current salt.
-     */
-    struct IBF_Key ibf_key;
+  /**
+   * IBF key for the entry, derived from the current salt.
+   */
+  struct IBF_Key ibf_key;
 
-    /**
-     * The actual element associated with the key.
-     *
-     * Only owned by the union operation if element->operation
-     * is #GNUNET_YES.
-     */
-    struct ElementEntry *element;
+  /**
+   * The actual element associated with the key.
+   *
+   * Only owned by the union operation if element->operation
+   * is #GNUNET_YES.
+   */
+  struct ElementEntry *element;
 
-    /**
-     * Did we receive this element?  Even if element->is_foreign is false, we
-     * might have received the element, so this indicates that the other peer
-     * has it.
-     */
-    int received;
+  /**
+   * Did we receive this element?  Even if element->is_foreign is false, we
+   * might have received the element, so this indicates that the other peer
+   * has it.
+   */
+  int received;
 };
 
 
@@ -651,17 +650,17 @@ struct KeyEntry
  */
 struct SendElementClosure
 {
-    /**
-     * The IBF key whose matching elements should be
-     * sent.
-     */
-    struct IBF_Key ibf_key;
+  /**
+   * The IBF key whose matching elements should be
+   * sent.
+   */
+  struct IBF_Key ibf_key;
 
-    /**
-     * Operation for which the elements
-     * should be sent.
-     */
-    struct Operation *op;
+  /**
+   * Operation for which the elements
+   * should be sent.
+   */
+  struct Operation *op;
 };
 
 
@@ -671,46 +670,46 @@ struct SendElementClosure
  */
 struct Listener
 {
-    /**
-     * Listeners are held in a doubly linked list.
-     */
-    struct Listener *next;
+  /**
+   * Listeners are held in a doubly linked list.
+   */
+  struct Listener *next;
 
-    /**
-     * Listeners are held in a doubly linked list.
-     */
-    struct Listener *prev;
+  /**
+   * Listeners are held in a doubly linked list.
+   */
+  struct Listener *prev;
 
-    /**
-     * Head of DLL of operations this listener is responsible for.
-     * Once the client has accepted/declined the operation, the
-     * operation is moved to the respective set's operation DLLS.
-     */
-    struct Operation *op_head;
+  /**
+   * Head of DLL of operations this listener is responsible for.
+   * Once the client has accepted/declined the operation, the
+   * operation is moved to the respective set's operation DLLS.
+   */
+  struct Operation *op_head;
 
-    /**
-     * Tail of DLL of operations this listener is responsible for.
-     * Once the client has accepted/declined the operation, the
-     * operation is moved to the respective set's operation DLLS.
-     */
-    struct Operation *op_tail;
+  /**
+   * Tail of DLL of operations this listener is responsible for.
+   * Once the client has accepted/declined the operation, the
+   * operation is moved to the respective set's operation DLLS.
+   */
+  struct Operation *op_tail;
 
-    /**
-     * Client that owns the listener.
-     * Only one client may own a listener.
-     */
-    struct ClientState *cs;
+  /**
+   * Client that owns the listener.
+   * Only one client may own a listener.
+   */
+  struct ClientState *cs;
 
-    /**
-     * The port we are listening on with CADET.
-     */
-    struct GNUNET_CADET_Port *open_port;
+  /**
+   * The port we are listening on with CADET.
+   */
+  struct GNUNET_CADET_Port *open_port;
 
-    /**
-     * Application ID for the operation, used to distinguish
-     * multiple operations of the same type with the same peer.
-     */
-    struct GNUNET_HashCode app_id;
+  /**
+   * Application ID for the operation, used to distinguish
+   * multiple operations of the same type with the same peer.
+   */
+  struct GNUNET_HashCode app_id;
 
 };
 
@@ -808,10 +807,10 @@ struct per_store_struct perf_store;
 
 enum MESSAGE_CONTROL_FLOW_STATE
 {
-    MESSAGE_EMPTY,
-    MESSAGE_SENT,
-    MESSAGE_EXPECTED,
-    MESSAGE_RECEIVED,
+  MESSAGE_EMPTY,
+  MESSAGE_SENT,
+  MESSAGE_EXPECTED,
+  MESSAGE_RECEIVED,
 };
 
 /**
@@ -820,9 +819,9 @@ enum MESSAGE_CONTROL_FLOW_STATE
 
 enum MESSAGE_TYPE
 {
-    OFFER_MESSAGE,
-    DEMAND_MESSAGE,
-    ELEMENT_MESSAGE,
+  OFFER_MESSAGE,
+  DEMAND_MESSAGE,
+  ELEMENT_MESSAGE,
 };
 
 /**
@@ -831,9 +830,9 @@ enum MESSAGE_TYPE
 
 struct message_control_flow_element
 {
-    enum MESSAGE_CONTROL_FLOW_STATE offer;
-    enum MESSAGE_CONTROL_FLOW_STATE demand;
-    enum MESSAGE_CONTROL_FLOW_STATE element;
+  enum MESSAGE_CONTROL_FLOW_STATE offer;
+  enum MESSAGE_CONTROL_FLOW_STATE demand;
+  enum MESSAGE_CONTROL_FLOW_STATE element;
 };
 
 
@@ -946,8 +945,8 @@ calculate_perf_store ()
                                                        
GNUNET_SETU_ElementMessage),
                                                 perf_store.element);
   // bytes_transmitted += 
sum_sent_received_bytes(sizeof(GNUNET_MESSAGE_TYPE_SETU_P2P_OPERATION_REQUEST), 
perf_store.operation_request);
-  bytes_transmitted += sum_sent_received_bytes(sizeof(StrataEstimatorMessage),
-                                               perf_store.se);
+  bytes_transmitted += sum_sent_received_bytes (sizeof(StrataEstimatorMessage),
+                                                perf_store.se);
   bytes_transmitted += sum_sent_received_bytes (4, perf_store.full_done);
   bytes_transmitted += sum_sent_received_bytes (sizeof(struct IBFMessage),
                                                 perf_store.ibf);
@@ -1013,125 +1012,125 @@ estimate_best_mode_of_operation (uint64_t 
avg_element_size,
                                  uint64_t ibf_bucket_number_factor)
 {
 
-    /*
-     * In case of initial sync fall to predefined states
-     */
+  /*
+   * In case of initial sync fall to predefined states
+   */
 
-    if (0 == local_set_size)
-        return FULL_SYNC_REMOTE_SENDING_FIRST;
-    if (0 == remote_set_size)
-        return FULL_SYNC_LOCAL_SENDING_FIRST;
+  if (0 == local_set_size)
+    return FULL_SYNC_REMOTE_SENDING_FIRST;
+  if (0 == remote_set_size)
+    return FULL_SYNC_LOCAL_SENDING_FIRST;
 
-    /*
-    * Calculate bytes for full Sync
-    */
+  /*
+  * Calculate bytes for full Sync
+  */
 
-    uint8_t sizeof_full_done_header = 4;
-    uint8_t sizeof_done_header = 4;
-    uint8_t rtt_min_full = 2;
-    uint8_t sizeof_request_full = 4;
-    uint64_t estimated_total_diff = (est_set_diff_remote + est_set_diff_local);
+  uint8_t sizeof_full_done_header = 4;
+  uint8_t sizeof_done_header = 4;
+  uint8_t rtt_min_full = 2;
+  uint8_t sizeof_request_full = 4;
+  uint64_t estimated_total_diff = (est_set_diff_remote + est_set_diff_local);
 
-    /* Estimate byte required if we send first */
-    uint64_t total_elements_to_send_local_send_first = est_set_diff_remote
-                                                       + local_set_size;
+  /* Estimate byte required if we send first */
+  uint64_t total_elements_to_send_local_send_first = est_set_diff_remote
+                                                     + local_set_size;
 
-    uint64_t total_bytes_full_local_send_first = (avg_element_size
-                                                  *
-                                                  
total_elements_to_send_local_send_first)   \
+  uint64_t total_bytes_full_local_send_first = (avg_element_size
+                                                *
+                                                
total_elements_to_send_local_send_first)   \
                                                + (
-                                                         
total_elements_to_send_local_send_first * sizeof(struct
-                                                                 
GNUNET_SETU_ElementMessage))   \
+    total_elements_to_send_local_send_first * sizeof(struct
+                                                     
GNUNET_SETU_ElementMessage))   \
                                                + (sizeof_full_done_header * 2) 
  \
                                                + rtt_min_full
-                                                 * bandwith_latency_tradeoff;
+                                               * bandwith_latency_tradeoff;
 
-    /* Estimate bytes required if we request from remote peer */
-    uint64_t total_elements_to_send_remote_send_first = est_set_diff_local
-                                                        + remote_set_size;
+  /* Estimate bytes required if we request from remote peer */
+  uint64_t total_elements_to_send_remote_send_first = est_set_diff_local
+                                                      + remote_set_size;
 
-    uint64_t total_bytes_full_remote_send_first = (avg_element_size
-                                                   *
-                                                   
total_elements_to_send_remote_send_first)   \
+  uint64_t total_bytes_full_remote_send_first = (avg_element_size
+                                                 *
+                                                 
total_elements_to_send_remote_send_first)   \
                                                 + (
-                                                          
total_elements_to_send_remote_send_first * sizeof(struct
-                                                                  
GNUNET_SETU_ElementMessage))   \
+    total_elements_to_send_remote_send_first * sizeof(struct
+                                                      
GNUNET_SETU_ElementMessage))   \
                                                 + (sizeof_full_done_header * 
2)   \
                                                 + (rtt_min_full + 0.5)
-                                                  * bandwith_latency_tradeoff  
 \
+                                                * bandwith_latency_tradeoff   \
                                                 + sizeof_request_full;
 
-    /*
-    * Calculate bytes for differential Sync
-    */
+  /*
+  * Calculate bytes for differential Sync
+  */
 
-    /* Estimate bytes required by IBF transmission*/
+  /* Estimate bytes required by IBF transmission*/
 
-    long double ibf_bucket_count = estimated_total_diff
-                                   * ibf_bucket_number_factor;
+  long double ibf_bucket_count = estimated_total_diff
+                                 * ibf_bucket_number_factor;
 
-    if (ibf_bucket_count <= IBF_MIN_SIZE)
-    {
-        ibf_bucket_count = IBF_MIN_SIZE;
-    }
+  if (ibf_bucket_count <= IBF_MIN_SIZE)
+  {
+    ibf_bucket_count = IBF_MIN_SIZE;
+  }
 
-    uint64_t ibf_message_count = ceil ((float) ibf_bucket_count
-                                       / MAX_BUCKETS_PER_MESSAGE);
+  uint64_t ibf_message_count = ceil ((float) ibf_bucket_count
+                                     / MAX_BUCKETS_PER_MESSAGE);
 
-    uint64_t estimated_counter_size = ceil (
-            MIN (2 * log2l ((float) local_set_size / ibf_bucket_count), log2l (
-                    local_set_size)));
+  uint64_t estimated_counter_size = ceil (
+    MIN (2 * log2l ((float) local_set_size / ibf_bucket_count), log2l (
+           local_set_size)));
 
-    long double counter_bytes = (float) estimated_counter_size / 8;
+  long double counter_bytes = (float) estimated_counter_size / 8;
 
-    uint64_t ibf_bytes = ceil ((sizeof(struct IBFMessage) * ibf_message_count)
-                               * 1.2   \
+  uint64_t ibf_bytes = ceil ((sizeof(struct IBFMessage) * ibf_message_count)
+                             * 1.2   \
                              + (ibf_bucket_count * sizeof(struct IBF_Key)) * 
1.2   \
                              + (ibf_bucket_count * sizeof(struct IBF_KeyHash))
-                               * 1.2   \
+                             * 1.2   \
                              + (ibf_bucket_count * counter_bytes) * 1.2);
 
-    /* Estimate full byte count for differential sync */
-    uint64_t element_size = (avg_element_size + sizeof(struct
-            GNUNET_SETU_ElementMessage))   \
+  /* Estimate full byte count for differential sync */
+  uint64_t element_size = (avg_element_size + sizeof(struct
+                                                     
GNUNET_SETU_ElementMessage))   \
                           * estimated_total_diff;
-    uint64_t done_size = sizeof_done_header;
-    uint64_t inquery_size = (sizeof(struct IBF_Key) + sizeof(struct
-            InquiryMessage))
-                            * estimated_total_diff;
-    uint64_t demand_size =
-            (sizeof(struct GNUNET_HashCode) + sizeof(struct 
GNUNET_MessageHeader))
-            * estimated_total_diff;
-    uint64_t offer_size = (sizeof(struct GNUNET_HashCode) + sizeof(struct
-            GNUNET_MessageHeader))
+  uint64_t done_size = sizeof_done_header;
+  uint64_t inquery_size = (sizeof(struct IBF_Key) + sizeof(struct
+                                                           InquiryMessage))
                           * estimated_total_diff;
-
-    uint64_t total_bytes_diff = (element_size + done_size + inquery_size
-                                 + demand_size + offer_size + ibf_bytes)   \
+  uint64_t demand_size =
+    (sizeof(struct GNUNET_HashCode) + sizeof(struct GNUNET_MessageHeader))
+    * estimated_total_diff;
+  uint64_t offer_size = (sizeof(struct GNUNET_HashCode) + sizeof(struct
+                                                                 
GNUNET_MessageHeader))
+                        * estimated_total_diff;
+
+  uint64_t total_bytes_diff = (element_size + done_size + inquery_size
+                               + demand_size + offer_size + ibf_bytes)   \
                               + (DIFFERENTIAL_RTT_MEAN
                                  * bandwith_latency_tradeoff);
 
-    uint64_t full_min = MIN (total_bytes_full_local_send_first,
-                             total_bytes_full_local_send_first);
+  uint64_t full_min = MIN (total_bytes_full_local_send_first,
+                           total_bytes_full_local_send_first);
 
-    /* Decide between full and differential sync */
+  /* Decide between full and differential sync */
 
-    if (full_min < total_bytes_diff)
+  if (full_min < total_bytes_diff)
+  {
+    /* Decide between sending all element first or receiving all elements */
+    if (total_bytes_full_remote_send_first > total_bytes_full_local_send_first)
     {
-        /* Decide between sending all element first or receiving all elements 
*/
-        if (total_bytes_full_remote_send_first > 
total_bytes_full_local_send_first)
-        {
-            return FULL_SYNC_LOCAL_SENDING_FIRST;
-        }
-        else
-        {
-            return FULL_SYNC_REMOTE_SENDING_FIRST;
-        }
+      return FULL_SYNC_LOCAL_SENDING_FIRST;
     }
     else
     {
-        return DIFFERENTIAL_SYNC;
+      return FULL_SYNC_REMOTE_SENDING_FIRST;
     }
+  }
+  else
+  {
+    return DIFFERENTIAL_SYNC;
+  }
 }
 
 
@@ -1145,21 +1144,21 @@ estimate_best_mode_of_operation (uint64_t 
avg_element_size,
  */
 static int
 check_valid_phase (const uint8_t allowed_phases[], size_t size_phases, struct
-        Operation *op)
+                   Operation *op)
 {
-    for (uint32_t phase_ctr = 0; phase_ctr < size_phases; phase_ctr++)
+  for (uint32_t phase_ctr = 0; phase_ctr < size_phases; phase_ctr++)
+  {
+    uint8_t phase = allowed_phases[phase_ctr];
+    if (phase == op->phase)
     {
-        uint8_t phase = allowed_phases[phase_ctr];
-        if (phase == op->phase)
-        {
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "Message received in valid phase\n");
-            return GNUNET_YES;
-        }
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "Message received in valid phase\n");
+      return GNUNET_YES;
     }
-    LOG (GNUNET_ERROR_TYPE_ERROR,
-         "Received message in invalid phase: %u\n", op->phase);
-    return GNUNET_NO;
+  }
+  LOG (GNUNET_ERROR_TYPE_ERROR,
+       "Received message in invalid phase: %u\n", op->phase);
+  return GNUNET_NO;
 }
 
 
@@ -1179,54 +1178,54 @@ update_message_control_flow (struct 
GNUNET_CONTAINER_MultiHashMap *hash_map,
                              const struct GNUNET_HashCode *hash_code,
                              enum MESSAGE_TYPE mt)
 {
-    struct message_control_flow_element *cfe = NULL;
-    enum MESSAGE_CONTROL_FLOW_STATE *mcfs;
+  struct message_control_flow_element *cfe = NULL;
+  enum MESSAGE_CONTROL_FLOW_STATE *mcfs;
 
-    cfe = GNUNET_CONTAINER_multihashmap_get (hash_map, hash_code);
-    if (NULL == cfe)
-    {
-        cfe = (struct message_control_flow_element*) GNUNET_malloc 
(sizeof(struct
-                message_control_flow_element));
-    }
-    if (OFFER_MESSAGE == mt)
-    {
-        mcfs = &cfe->offer;
-    }
-    else if (DEMAND_MESSAGE == mt)
-    {
-        mcfs = &cfe->demand;
-    }
-    else if (ELEMENT_MESSAGE == mt)
+  cfe = GNUNET_CONTAINER_multihashmap_get (hash_map, hash_code);
+  if (NULL == cfe)
+  {
+    cfe = (struct message_control_flow_element*) GNUNET_malloc (sizeof(struct
+                                                                       
message_control_flow_element));
+  }
+  if (OFFER_MESSAGE == mt)
+  {
+    mcfs = &cfe->offer;
+  }
+  else if (DEMAND_MESSAGE == mt)
+  {
+    mcfs = &cfe->demand;
+  }
+  else if (ELEMENT_MESSAGE == mt)
+  {
+    mcfs = &cfe->element;
+    if ((new_mcfs != MESSAGE_SENT) && (MESSAGE_RECEIVED != cfe->offer) )
     {
-        mcfs = &cfe->element;
-        if ((new_mcfs != MESSAGE_SENT) && (MESSAGE_RECEIVED != cfe->offer) )
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "Received an element without sent offer!\n");
-            return GNUNET_NO;
-        }
-        /* Check that only requested elements are received! */
-        if ((new_mcfs != MESSAGE_SENT) && (cfe->demand != MESSAGE_SENT) )
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "Received an element that was not demanded\n");
-            return GNUNET_NO;
-        }
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "Received an element without sent offer!\n");
+      return GNUNET_NO;
     }
-    else
+    /* Check that only requested elements are received! */
+    if ((new_mcfs != MESSAGE_SENT) && (cfe->demand != MESSAGE_SENT) )
     {
-        return GNUNET_SYSERR;
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "Received an element that was not demanded\n");
+      return GNUNET_NO;
     }
+  }
+  else
+  {
+    return GNUNET_SYSERR;
+  }
 
-    if (new_mcfs <= *mcfs)
-    {
-        return GNUNET_NO;
-    }
+  if (new_mcfs <= *mcfs)
+  {
+    return GNUNET_NO;
+  }
 
-    *mcfs = new_mcfs;
-    GNUNET_CONTAINER_multihashmap_put (hash_map, hash_code,cfe,
-                                       
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE);
-    return GNUNET_YES;
+  *mcfs = new_mcfs;
+  GNUNET_CONTAINER_multihashmap_put (hash_map, hash_code,cfe,
+                                     
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE);
+  return GNUNET_YES;
 }
 
 
@@ -1239,41 +1238,41 @@ update_message_control_flow (struct 
GNUNET_CONTAINER_MultiHashMap *hash_map,
  */
 static int
 is_message_in_message_control_flow (struct
-                                            GNUNET_CONTAINER_MultiHashMap 
*hash_map,
+                                    GNUNET_CONTAINER_MultiHashMap *hash_map,
                                     struct GNUNET_HashCode *hash_code,
                                     enum MESSAGE_TYPE mt)
 {
-    struct message_control_flow_element *cfe = NULL;
-    enum MESSAGE_CONTROL_FLOW_STATE *mcfs;
+  struct message_control_flow_element *cfe = NULL;
+  enum MESSAGE_CONTROL_FLOW_STATE *mcfs;
 
-    cfe = GNUNET_CONTAINER_multihashmap_get (hash_map, hash_code);
-    if (NULL == cfe)
-    {
-        cfe = (struct message_control_flow_element*) GNUNET_malloc 
(sizeof(struct
-                message_control_flow_element));
-    }
+  cfe = GNUNET_CONTAINER_multihashmap_get (hash_map, hash_code);
+  if (NULL == cfe)
+  {
+    cfe = (struct message_control_flow_element*) GNUNET_malloc (sizeof(struct
+                                                                       
message_control_flow_element));
+  }
 
-    if (OFFER_MESSAGE == mt)
-    {
-        mcfs = &cfe->offer;
-    }
-    else if (DEMAND_MESSAGE == mt)
-    {
-        mcfs = &cfe->demand;
-    }
-    else if (ELEMENT_MESSAGE == mt)
-    {
-        mcfs = &cfe->element;
-    }
-    else
-    {
-        return GNUNET_SYSERR;
-    }
-    if (*mcfs != MESSAGE_EMPTY)
-    {
-        return GNUNET_NO;
-    }
-    return GNUNET_YES;
+  if (OFFER_MESSAGE == mt)
+  {
+    mcfs = &cfe->offer;
+  }
+  else if (DEMAND_MESSAGE == mt)
+  {
+    mcfs = &cfe->demand;
+  }
+  else if (ELEMENT_MESSAGE == mt)
+  {
+    mcfs = &cfe->element;
+  }
+  else
+  {
+    return GNUNET_SYSERR;
+  }
+  if (*mcfs != MESSAGE_EMPTY)
+  {
+    return GNUNET_NO;
+  }
+  return GNUNET_YES;
 }
 
 
@@ -1292,13 +1291,13 @@ determinate_done_message_iterator (void *cls,
                                    const struct GNUNET_HashCode *key,
                                    void *value)
 {
-    struct message_control_flow_element *mcfe = value;
+  struct message_control_flow_element *mcfe = value;
 
-    if (((mcfe->element == MESSAGE_SENT) || (mcfe->element == 
MESSAGE_RECEIVED) ))
-    {
-        return GNUNET_YES;
-    }
-    return GNUNET_NO;
+  if (((mcfe->element == MESSAGE_SENT) || (mcfe->element == MESSAGE_RECEIVED) 
))
+  {
+    return GNUNET_YES;
+  }
+  return GNUNET_NO;
 }
 
 
@@ -1316,10 +1315,10 @@ determinate_avg_element_size_iterator (void *cls,
                                        const struct GNUNET_HashCode *key,
                                        void *value)
 {
-    struct Operation *op = cls;
-    struct GNUNET_SETU_Element *element = value;
-    op->total_elements_size_local += element->size;
-    return GNUNET_YES;
+  struct Operation *op = cls;
+  struct GNUNET_SETU_Element *element = value;
+  op->total_elements_size_local += element->size;
+  return GNUNET_YES;
 }
 
 
@@ -1337,23 +1336,23 @@ create_randomized_element_iterator (void *cls,
                                     const struct GNUNET_HashCode *key,
                                     void *value)
 {
-    struct Operation *op = cls;
-
-    struct GNUNET_HashContext *hashed_key_context =
-            GNUNET_CRYPTO_hash_context_start ();
-    struct GNUNET_HashCode new_key;
-    GNUNET_CRYPTO_hash_context_read (hashed_key_context,
-                                     &key,
-                                     sizeof(struct IBF_Key));
-    GNUNET_CRYPTO_hash_context_read (hashed_key_context,
-                                     
&op->set->content->elements_randomized_salt,
-                                     sizeof(uint32_t));
-    GNUNET_CRYPTO_hash_context_finish (hashed_key_context,
-                                       &new_key);
-    GNUNET_CONTAINER_multihashmap_put (op->set->content->elements_randomized,
-                                       &new_key,value,
-                                       
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE);
-    return GNUNET_YES;
+  struct Operation *op = cls;
+
+  struct GNUNET_HashContext *hashed_key_context =
+    GNUNET_CRYPTO_hash_context_start ();
+  struct GNUNET_HashCode new_key;
+  GNUNET_CRYPTO_hash_context_read (hashed_key_context,
+                                   &key,
+                                   sizeof(struct IBF_Key));
+  GNUNET_CRYPTO_hash_context_read (hashed_key_context,
+                                   &op->set->content->elements_randomized_salt,
+                                   sizeof(uint32_t));
+  GNUNET_CRYPTO_hash_context_finish (hashed_key_context,
+                                     &new_key);
+  GNUNET_CONTAINER_multihashmap_put (op->set->content->elements_randomized,
+                                     &new_key,value,
+                                     
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE);
+  return GNUNET_YES;
 }
 
 
@@ -1372,16 +1371,16 @@ destroy_key_to_element_iter (void *cls,
                              uint32_t key,
                              void *value)
 {
-    struct KeyEntry *k = value;
+  struct KeyEntry *k = value;
 
-    GNUNET_assert (NULL != k);
-    if (GNUNET_YES == k->element->remote)
-    {
-        GNUNET_free (k->element);
-        k->element = NULL;
-    }
-    GNUNET_free (k);
-    return GNUNET_YES;
+  GNUNET_assert (NULL != k);
+  if (GNUNET_YES == k->element->remote)
+  {
+    GNUNET_free (k->element);
+    k->element = NULL;
+  }
+  GNUNET_free (k);
+  return GNUNET_YES;
 }
 
 
@@ -1394,46 +1393,46 @@ destroy_key_to_element_iter (void *cls,
 static void
 send_client_done (void *cls)
 {
-    struct Operation *op = cls;
-    struct GNUNET_MQ_Envelope *ev;
-    struct GNUNET_SETU_ResultMessage *rm;
-
-    if (GNUNET_YES == op->client_done_sent)
-        return;
-    if (PHASE_FINISHED != op->phase)
-    {
-        LOG (GNUNET_ERROR_TYPE_WARNING,
-             "Union operation failed\n");
-        GNUNET_STATISTICS_update (_GSS_statistics,
-                                  "# Union operations failed",
-                                  1,
-                                  GNUNET_NO);
-        ev = GNUNET_MQ_msg (rm, GNUNET_MESSAGE_TYPE_SETU_RESULT);
-        rm->result_status = htons (GNUNET_SETU_STATUS_FAILURE);
-        rm->request_id = htonl (op->client_request_id);
-        rm->element_type = htons (0);
-        GNUNET_MQ_send (op->set->cs->mq,
-                        ev);
-        return;
-    }
-
-    op->client_done_sent = GNUNET_YES;
+  struct Operation *op = cls;
+  struct GNUNET_MQ_Envelope *ev;
+  struct GNUNET_SETU_ResultMessage *rm;
 
+  if (GNUNET_YES == op->client_done_sent)
+    return;
+  if (PHASE_FINISHED != op->phase)
+  {
+    LOG (GNUNET_ERROR_TYPE_WARNING,
+         "Union operation failed\n");
     GNUNET_STATISTICS_update (_GSS_statistics,
-                              "# Union operations succeeded",
+                              "# Union operations failed",
                               1,
                               GNUNET_NO);
-    LOG (GNUNET_ERROR_TYPE_INFO,
-         "Signalling client that union operation is done\n");
-    ev = GNUNET_MQ_msg (rm,
-                        GNUNET_MESSAGE_TYPE_SETU_RESULT);
+    ev = GNUNET_MQ_msg (rm, GNUNET_MESSAGE_TYPE_SETU_RESULT);
+    rm->result_status = htons (GNUNET_SETU_STATUS_FAILURE);
     rm->request_id = htonl (op->client_request_id);
-    rm->result_status = htons (GNUNET_SETU_STATUS_DONE);
     rm->element_type = htons (0);
-    rm->current_size = GNUNET_htonll (GNUNET_CONTAINER_multihashmap32_size (
-            op->key_to_element));
     GNUNET_MQ_send (op->set->cs->mq,
                     ev);
+    return;
+  }
+
+  op->client_done_sent = GNUNET_YES;
+
+  GNUNET_STATISTICS_update (_GSS_statistics,
+                            "# Union operations succeeded",
+                            1,
+                            GNUNET_NO);
+  LOG (GNUNET_ERROR_TYPE_INFO,
+       "Signalling client that union operation is done\n");
+  ev = GNUNET_MQ_msg (rm,
+                      GNUNET_MESSAGE_TYPE_SETU_RESULT);
+  rm->request_id = htonl (op->client_request_id);
+  rm->result_status = htons (GNUNET_SETU_STATUS_DONE);
+  rm->element_type = htons (0);
+  rm->current_size = GNUNET_htonll (GNUNET_CONTAINER_multihashmap32_size (
+                                      op->key_to_element));
+  GNUNET_MQ_send (op->set->cs->mq,
+                  ev);
 }
 
 
@@ -1446,16 +1445,16 @@ send_client_done (void *cls)
 static int
 check_byzantine_bounds (struct Operation *op)
 {
-    if (op->byzantine != GNUNET_YES)
-        return GNUNET_OK;
-    if (op->remote_element_count + op->remote_set_diff >
-        op->byzantine_upper_bound)
-        return GNUNET_SYSERR;
-    if (op->local_element_count + op->local_set_diff > 
op->byzantine_upper_bound)
-        return GNUNET_SYSERR;
-    if (op->remote_element_count < op->byzantine_lower_bound)
-        return GNUNET_SYSERR;
+  if (op->byzantine != GNUNET_YES)
     return GNUNET_OK;
+  if (op->remote_element_count + op->remote_set_diff >
+      op->byzantine_upper_bound)
+    return GNUNET_SYSERR;
+  if (op->local_element_count + op->local_set_diff > op->byzantine_upper_bound)
+    return GNUNET_SYSERR;
+  if (op->remote_element_count < op->byzantine_lower_bound)
+    return GNUNET_SYSERR;
+  return GNUNET_OK;
 }
 
 
@@ -1476,63 +1475,63 @@ check_byzantine_bounds (struct Operation *op)
 static void
 _GSS_operation_destroy (struct Operation *op)
 {
-    struct Set *set = op->set;
-    struct GNUNET_CADET_Channel *channel;
-
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Destroying union operation %p\n",
-                op);
-    GNUNET_assert (NULL == op->listener);
-    /* check if the op was canceled twice */
-    if (NULL != op->remote_ibf)
-    {
-        ibf_destroy (op->remote_ibf);
-        op->remote_ibf = NULL;
-    }
-    if (NULL != op->demanded_hashes)
-    {
-        GNUNET_CONTAINER_multihashmap_destroy (op->demanded_hashes);
-        op->demanded_hashes = NULL;
-    }
-    if (NULL != op->local_ibf)
-    {
-        ibf_destroy (op->local_ibf);
-        op->local_ibf = NULL;
-    }
-    if (NULL != op->se)
-    {
-        strata_estimator_destroy (op->se);
-        op->se = NULL;
-    }
-    if (NULL != op->key_to_element)
-    {
-        GNUNET_CONTAINER_multihashmap32_iterate (op->key_to_element,
-                                                 &destroy_key_to_element_iter,
-                                                 NULL);
-        GNUNET_CONTAINER_multihashmap32_destroy (op->key_to_element);
-        op->key_to_element = NULL;
-    }
-    if (NULL != set)
-    {
-        GNUNET_CONTAINER_DLL_remove (set->ops_head,
-                                     set->ops_tail,
-                                     op);
-        op->set = NULL;
-    }
-    if (NULL != op->context_msg)
-    {
-        GNUNET_free (op->context_msg);
-        op->context_msg = NULL;
-    }
-    if (NULL != (channel = op->channel))
-    {
-        /* This will free op; called conditionally as this helper function
-           is also called from within the channel disconnect handler. */
-        op->channel = NULL;
-        GNUNET_CADET_channel_destroy (channel);
-    }
-    /* We rely on the channel end handler to free 'op'. When 'op->channel' was 
NULL,
-     * there was a channel end handler that will free 'op' on the call stack. 
*/
+  struct Set *set = op->set;
+  struct GNUNET_CADET_Channel *channel;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Destroying union operation %p\n",
+              op);
+  GNUNET_assert (NULL == op->listener);
+  /* check if the op was canceled twice */
+  if (NULL != op->remote_ibf)
+  {
+    ibf_destroy (op->remote_ibf);
+    op->remote_ibf = NULL;
+  }
+  if (NULL != op->demanded_hashes)
+  {
+    GNUNET_CONTAINER_multihashmap_destroy (op->demanded_hashes);
+    op->demanded_hashes = NULL;
+  }
+  if (NULL != op->local_ibf)
+  {
+    ibf_destroy (op->local_ibf);
+    op->local_ibf = NULL;
+  }
+  if (NULL != op->se)
+  {
+    strata_estimator_destroy (op->se);
+    op->se = NULL;
+  }
+  if (NULL != op->key_to_element)
+  {
+    GNUNET_CONTAINER_multihashmap32_iterate (op->key_to_element,
+                                             &destroy_key_to_element_iter,
+                                             NULL);
+    GNUNET_CONTAINER_multihashmap32_destroy (op->key_to_element);
+    op->key_to_element = NULL;
+  }
+  if (NULL != set)
+  {
+    GNUNET_CONTAINER_DLL_remove (set->ops_head,
+                                 set->ops_tail,
+                                 op);
+    op->set = NULL;
+  }
+  if (NULL != op->context_msg)
+  {
+    GNUNET_free (op->context_msg);
+    op->context_msg = NULL;
+  }
+  if (NULL != (channel = op->channel))
+  {
+    /* This will free op; called conditionally as this helper function
+       is also called from within the channel disconnect handler. */
+    op->channel = NULL;
+    GNUNET_CADET_channel_destroy (channel);
+  }
+  /* We rely on the channel end handler to free 'op'. When 'op->channel' was 
NULL,
+   * there was a channel end handler that will free 'op' on the call stack. */
 }
 
 
@@ -1553,24 +1552,24 @@ _GSS_operation_destroy2 (struct Operation *op);
 static void
 incoming_destroy (struct Operation *op)
 {
-    struct Listener *listener;
+  struct Listener *listener;
 
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Destroying incoming operation %p\n",
-                op);
-    if (NULL != (listener = op->listener))
-    {
-        GNUNET_CONTAINER_DLL_remove (listener->op_head,
-                                     listener->op_tail,
-                                     op);
-        op->listener = NULL;
-    }
-    if (NULL != op->timeout_task)
-    {
-        GNUNET_SCHEDULER_cancel (op->timeout_task);
-        op->timeout_task = NULL;
-    }
-    _GSS_operation_destroy2 (op);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Destroying incoming operation %p\n",
+              op);
+  if (NULL != (listener = op->listener))
+  {
+    GNUNET_CONTAINER_DLL_remove (listener->op_head,
+                                 listener->op_tail,
+                                 op);
+    op->listener = NULL;
+  }
+  if (NULL != op->timeout_task)
+  {
+    GNUNET_SCHEDULER_cancel (op->timeout_task);
+    op->timeout_task = NULL;
+  }
+  _GSS_operation_destroy2 (op);
 }
 
 
@@ -1582,24 +1581,24 @@ incoming_destroy (struct Operation *op)
 static void
 _GSS_operation_destroy2 (struct Operation *op)
 {
-    struct GNUNET_CADET_Channel *channel;
+  struct GNUNET_CADET_Channel *channel;
 
-    if (NULL != (channel = op->channel))
-    {
-        /* This will free op; called conditionally as this helper function
-           is also called from within the channel disconnect handler. */
-        op->channel = NULL;
-        GNUNET_CADET_channel_destroy (channel);
-    }
-    if (NULL != op->listener)
-    {
-        incoming_destroy (op);
-        return;
-    }
-    if (NULL != op->set)
-        send_client_done (op);
-    _GSS_operation_destroy (op);
-    GNUNET_free (op);
+  if (NULL != (channel = op->channel))
+  {
+    /* This will free op; called conditionally as this helper function
+       is also called from within the channel disconnect handler. */
+    op->channel = NULL;
+    GNUNET_CADET_channel_destroy (channel);
+  }
+  if (NULL != op->listener)
+  {
+    incoming_destroy (op);
+    return;
+  }
+  if (NULL != op->set)
+    send_client_done (op);
+  _GSS_operation_destroy (op);
+  GNUNET_free (op);
 }
 
 
@@ -1612,18 +1611,18 @@ _GSS_operation_destroy2 (struct Operation *op)
 static void
 fail_union_operation (struct Operation *op)
 {
-    struct GNUNET_MQ_Envelope *ev;
-    struct GNUNET_SETU_ResultMessage *msg;
-
-    LOG (GNUNET_ERROR_TYPE_WARNING,
-         "union operation failed\n");
-    ev = GNUNET_MQ_msg (msg, GNUNET_MESSAGE_TYPE_SETU_RESULT);
-    msg->result_status = htons (GNUNET_SETU_STATUS_FAILURE);
-    msg->request_id = htonl (op->client_request_id);
-    msg->element_type = htons (0);
-    GNUNET_MQ_send (op->set->cs->mq,
-                    ev);
-    _GSS_operation_destroy (op);
+  struct GNUNET_MQ_Envelope *ev;
+  struct GNUNET_SETU_ResultMessage *msg;
+
+  LOG (GNUNET_ERROR_TYPE_WARNING,
+       "union operation failed\n");
+  ev = GNUNET_MQ_msg (msg, GNUNET_MESSAGE_TYPE_SETU_RESULT);
+  msg->result_status = htons (GNUNET_SETU_STATUS_FAILURE);
+  msg->request_id = htonl (op->client_request_id);
+  msg->element_type = htons (0);
+  GNUNET_MQ_send (op->set->cs->mq,
+                  ev);
+  _GSS_operation_destroy (op);
 }
 
 
@@ -1640,59 +1639,59 @@ fail_union_operation (struct Operation *op)
 static void
 full_sync_plausibility_check (struct Operation *op)
 {
-    long double security_level_lb = (long double) 1 / (SECURITY_LEVEL);
-    uint64_t duplicates = op->received_fresh - op->received_total;
+  long double security_level_lb = (long double) 1 / (SECURITY_LEVEL);
+  uint64_t duplicates = op->received_fresh - op->received_total;
 
-    /*
-     * Protect full sync from receiving double element when in FULL SENDING
-     */
-    if ((GNUNET_YES == op->byzantine) && (PHASE_FULL_SENDING == op->phase) )
+  /*
+   * Protect full sync from receiving double element when in FULL SENDING
+   */
+  if ((GNUNET_YES == op->byzantine) && (PHASE_FULL_SENDING == op->phase) )
+  {
+    if (duplicates > 0)
     {
-        if (duplicates > 0)
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "PROTOCOL VIOLATION: Received duplicate element in full 
receiving "
-                 "mode of operation this is not allowed! Duplicates: %lu\n",
-                 duplicates);
-            GNUNET_break_op (0);
-            fail_union_operation (op);
-            return;
-        }
-
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "PROTOCOL VIOLATION: Received duplicate element in full receiving "
+           "mode of operation this is not allowed! Duplicates: %lu\n",
+           duplicates);
+      GNUNET_break_op (0);
+      fail_union_operation (op);
+      return;
     }
 
-    /*
-     * Protect full sync with probabilistic algorithm
-     */
-    if ((GNUNET_YES == op->byzantine) && (PHASE_FULL_RECEIVING == op->phase) )
-    {
-        if (0 == op->remote_set_diff)
-            op->remote_set_diff = 1;
-
-        long double base = (1 - (long double) (op->remote_set_diff
-                                               / (long double) 
(op->initial_size
-                                                                + op->
-                remote_set_diff)));
-        long double exponent = (op->received_total - (op->received_fresh * 
((long
-        double)
-                                                                               
     op->
-                                                                               
             initial_size
-                                                                            / 
(long
-        double)
-                                                                               
     op->
-                                                                               
             remote_set_diff)));
-        long double value = powl (base, exponent);
-        if ((value < security_level_lb) || (value > SECURITY_LEVEL) )
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "PROTOCOL VIOLATION: Other peer violated probabilistic rule 
for receiving "
-                 "to many duplicated full element : %LF\n",
-                 value);
-            GNUNET_break_op (0);
-            fail_union_operation (op);
-            return;
-        }
+  }
+
+  /*
+   * Protect full sync with probabilistic algorithm
+   */
+  if ((GNUNET_YES == op->byzantine) && (PHASE_FULL_RECEIVING == op->phase) )
+  {
+    if (0 == op->remote_set_diff)
+      op->remote_set_diff = 1;
+
+    long double base = (1 - (long double) (op->remote_set_diff
+                                           / (long double) (op->initial_size
+                                                            + op->
+                                                            remote_set_diff)));
+    long double exponent = (op->received_total - (op->received_fresh * ((long
+                                                                         
double)
+                                                                        op->
+                                                                        
initial_size
+                                                                        / (long
+                                                                           
double)
+                                                                        op->
+                                                                        
remote_set_diff)));
+    long double value = powl (base, exponent);
+    if ((value < security_level_lb) || (value > SECURITY_LEVEL) )
+    {
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "PROTOCOL VIOLATION: Other peer violated probabilistic rule for 
receiving "
+           "to many duplicated full element : %LF\n",
+           value);
+      GNUNET_break_op (0);
+      fail_union_operation (op);
+      return;
     }
+  }
 }
 
 
@@ -1703,18 +1702,18 @@ full_sync_plausibility_check (struct Operation *op)
 static void
 check_max_differential_rounds (struct Operation *op)
 {
-    long double probability = powl (PROBABILITY_FOR_NEW_ROUND,
-                                    op->differential_sync_iterations);
-    if ((long double) 1 / (SECURITY_LEVEL) > probability)
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "PROTOCOL VIOLATION: Other peer violated probabilistic rule for 
to many active passive "
-             "switches in differential sync: %u\n",
-             op->differential_sync_iterations);
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
+  long double probability = powl (PROBABILITY_FOR_NEW_ROUND,
+                                  op->differential_sync_iterations);
+  if ((long double) 1 / (SECURITY_LEVEL) > probability)
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "PROTOCOL VIOLATION: Other peer violated probabilistic rule for to 
many active passive "
+         "switches in differential sync: %u\n",
+         op->differential_sync_iterations);
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
 }
 
 
@@ -1728,15 +1727,15 @@ check_max_differential_rounds (struct Operation *op)
 static struct IBF_Key
 get_ibf_key (const struct GNUNET_HashCode *src)
 {
-    struct IBF_Key key;
-    uint16_t salt = 0;
-
-    GNUNET_assert (GNUNET_OK ==
-                   GNUNET_CRYPTO_kdf (&key, sizeof(key),
-                                      src, sizeof *src,
-                                      &salt, sizeof(salt),
-                                      NULL, 0));
-    return key;
+  struct IBF_Key key;
+  uint16_t salt = 0;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CRYPTO_kdf (&key, sizeof(key),
+                                    src, sizeof *src,
+                                    &salt, sizeof(salt),
+                                    NULL, 0));
+  return key;
 }
 
 
@@ -1745,15 +1744,15 @@ get_ibf_key (const struct GNUNET_HashCode *src)
  */
 struct GetElementContext
 {
-    /**
-     * Gnunet hash code in context
-     */
-    struct GNUNET_HashCode hash;
+  /**
+   * Gnunet hash code in context
+   */
+  struct GNUNET_HashCode hash;
 
-    /**
-     * Pointer to the key enty
-     */
-    struct KeyEntry *k;
+  /**
+   * Pointer to the key enty
+   */
+  struct KeyEntry *k;
 };
 
 
@@ -1772,17 +1771,17 @@ op_get_element_iterator (void *cls,
                          uint32_t key,
                          void *value)
 {
-    struct GetElementContext *ctx = cls;
-    struct KeyEntry *k = value;
+  struct GetElementContext *ctx = cls;
+  struct KeyEntry *k = value;
 
-    GNUNET_assert (NULL != k);
-    if (0 == GNUNET_CRYPTO_hash_cmp (&k->element->element_hash,
-                                     &ctx->hash))
-    {
-        ctx->k = k;
-        return GNUNET_NO;
-    }
-    return GNUNET_YES;
+  GNUNET_assert (NULL != k);
+  if (0 == GNUNET_CRYPTO_hash_cmp (&k->element->element_hash,
+                                   &ctx->hash))
+  {
+    ctx->k = k;
+    return GNUNET_NO;
+  }
+  return GNUNET_YES;
 }
 
 
@@ -1798,25 +1797,25 @@ static struct KeyEntry *
 op_get_element (struct Operation *op,
                 const struct GNUNET_HashCode *element_hash)
 {
-    int ret;
-    struct IBF_Key ibf_key;
-    struct GetElementContext ctx = { { { 0 } }, 0 };
+  int ret;
+  struct IBF_Key ibf_key;
+  struct GetElementContext ctx = { { { 0 } }, 0 };
 
-    ctx.hash = *element_hash;
+  ctx.hash = *element_hash;
 
-    ibf_key = get_ibf_key (element_hash);
-    ret = GNUNET_CONTAINER_multihashmap32_get_multiple (op->key_to_element,
-                                                        (uint32_t) 
ibf_key.key_val,
-                                                        
&op_get_element_iterator,
-                                                        &ctx);
+  ibf_key = get_ibf_key (element_hash);
+  ret = GNUNET_CONTAINER_multihashmap32_get_multiple (op->key_to_element,
+                                                      (uint32_t) 
ibf_key.key_val,
+                                                      &op_get_element_iterator,
+                                                      &ctx);
 
-    /* was the iteration aborted because we found the element? */
-    if (GNUNET_SYSERR == ret)
-    {
-        GNUNET_assert (NULL != ctx.k);
-        return ctx.k;
-    }
-    return NULL;
+  /* was the iteration aborted because we found the element? */
+  if (GNUNET_SYSERR == ret)
+  {
+    GNUNET_assert (NULL != ctx.k);
+    return ctx.k;
+  }
+  return NULL;
 }
 
 
@@ -1839,19 +1838,19 @@ op_register_element (struct Operation *op,
                      struct ElementEntry *ee,
                      int received)
 {
-    struct IBF_Key ibf_key;
-    struct KeyEntry *k;
-
-    ibf_key = get_ibf_key (&ee->element_hash);
-    k = GNUNET_new (struct KeyEntry);
-    k->element = ee;
-    k->ibf_key = ibf_key;
-    k->received = received;
-    GNUNET_assert (GNUNET_OK ==
-                   GNUNET_CONTAINER_multihashmap32_put (op->key_to_element,
-                                                        (uint32_t) 
ibf_key.key_val,
-                                                        k,
-                                                        
GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
+  struct IBF_Key ibf_key;
+  struct KeyEntry *k;
+
+  ibf_key = get_ibf_key (&ee->element_hash);
+  k = GNUNET_new (struct KeyEntry);
+  k->element = ee;
+  k->ibf_key = ibf_key;
+  k->received = received;
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CONTAINER_multihashmap32_put (op->key_to_element,
+                                                      (uint32_t) 
ibf_key.key_val,
+                                                      k,
+                                                      
GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
 }
 
 
@@ -1864,12 +1863,12 @@ salt_key (const struct IBF_Key *k_in,
           uint32_t salt,
           struct IBF_Key *k_out)
 {
-    int s = (salt * 7) % 64;
-    uint64_t x = k_in->key_val;
+  int s = (salt * 7) % 64;
+  uint64_t x = k_in->key_val;
 
-    /* rotate ibf key */
-    x = (x >> s) | (x << (64 - s));
-    k_out->key_val = x;
+  /* rotate ibf key */
+  x = (x >> s) | (x << (64 - s));
+  k_out->key_val = x;
 }
 
 
@@ -1881,11 +1880,11 @@ unsalt_key (const struct IBF_Key *k_in,
             uint32_t salt,
             struct IBF_Key *k_out)
 {
-    int s = (salt * 7) % 64;
-    uint64_t x = k_in->key_val;
+  int s = (salt * 7) % 64;
+  uint64_t x = k_in->key_val;
 
-    x = (x << s) | (x >> (64 - s));
-    k_out->key_val = x;
+  x = (x << s) | (x >> (64 - s));
+  k_out->key_val = x;
 }
 
 
@@ -1901,20 +1900,20 @@ prepare_ibf_iterator (void *cls,
                       uint32_t key,
                       void *value)
 {
-    struct Operation *op = cls;
-    struct KeyEntry *ke = value;
-    struct IBF_Key salted_key;
-
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "[OP %p] inserting %lx (hash %s) into ibf\n",
-         op,
-         (unsigned long) ke->ibf_key.key_val,
-         GNUNET_h2s (&ke->element->element_hash));
-    salt_key (&ke->ibf_key,
-              op->salt_send,
-              &salted_key);
-    ibf_insert (op->local_ibf, salted_key);
-    return GNUNET_YES;
+  struct Operation *op = cls;
+  struct KeyEntry *ke = value;
+  struct IBF_Key salted_key;
+
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "[OP %p] inserting %lx (hash %s) into ibf\n",
+       op,
+       (unsigned long) ke->ibf_key.key_val,
+       GNUNET_h2s (&ke->element->element_hash));
+  salt_key (&ke->ibf_key,
+            op->salt_send,
+            &salted_key);
+  ibf_insert (op->local_ibf, salted_key);
+  return GNUNET_YES;
 }
 
 
@@ -1929,7 +1928,7 @@ static int
 _GSS_is_element_of_operation (struct ElementEntry *ee,
                               struct Operation *op)
 {
-    return ee->generation >= op->generation_created;
+  return ee->generation >= op->generation_created;
 }
 
 
@@ -1948,20 +1947,20 @@ init_key_to_element_iterator (void *cls,
                               const struct GNUNET_HashCode *key,
                               void *value)
 {
-    struct Operation *op = cls;
-    struct ElementEntry *ee = value;
-
-    /* make sure that the element belongs to the set at the time
-     * of creating the operation */
-    if (GNUNET_NO ==
-        _GSS_is_element_of_operation (ee,
-                                      op))
-        return GNUNET_YES;
-    GNUNET_assert (GNUNET_NO == ee->remote);
-    op_register_element (op,
-                         ee,
-                         GNUNET_NO);
+  struct Operation *op = cls;
+  struct ElementEntry *ee = value;
+
+  /* make sure that the element belongs to the set at the time
+   * of creating the operation */
+  if (GNUNET_NO ==
+      _GSS_is_element_of_operation (ee,
+                                    op))
     return GNUNET_YES;
+  GNUNET_assert (GNUNET_NO == ee->remote);
+  op_register_element (op,
+                       ee,
+                       GNUNET_NO);
+  return GNUNET_YES;
 }
 
 
@@ -1973,14 +1972,14 @@ init_key_to_element_iterator (void *cls,
 static void
 initialize_key_to_element (struct Operation *op)
 {
-    unsigned int len;
-
-    GNUNET_assert (NULL == op->key_to_element);
-    len = GNUNET_CONTAINER_multihashmap_size (op->set->content->elements);
-    op->key_to_element = GNUNET_CONTAINER_multihashmap32_create (len + 1);
-    GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
-                                           &init_key_to_element_iterator,
-                                           op);
+  unsigned int len;
+
+  GNUNET_assert (NULL == op->key_to_element);
+  len = GNUNET_CONTAINER_multihashmap_size (op->set->content->elements);
+  op->key_to_element = GNUNET_CONTAINER_multihashmap32_create (len + 1);
+  GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
+                                         &init_key_to_element_iterator,
+                                         op);
 }
 
 
@@ -1996,23 +1995,23 @@ static int
 prepare_ibf (struct Operation *op,
              uint32_t size)
 {
-    GNUNET_assert (NULL != op->key_to_element);
-
-    if (NULL != op->local_ibf)
-        ibf_destroy (op->local_ibf);
-    // op->local_ibf = ibf_create (size, SE_IBF_HASH_NUM);
-    op->local_ibf = ibf_create (size,
-                                ((uint8_t) 
op->ibf_number_buckets_per_element));
-    if (NULL == op->local_ibf)
-    {
-        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                    "Failed to allocate local IBF\n");
-        return GNUNET_SYSERR;
-    }
-    GNUNET_CONTAINER_multihashmap32_iterate (op->key_to_element,
-                                             &prepare_ibf_iterator,
-                                             op);
-    return GNUNET_OK;
+  GNUNET_assert (NULL != op->key_to_element);
+
+  if (NULL != op->local_ibf)
+    ibf_destroy (op->local_ibf);
+  // op->local_ibf = ibf_create (size, SE_IBF_HASH_NUM);
+  op->local_ibf = ibf_create (size,
+                              ((uint8_t) op->ibf_number_buckets_per_element));
+  if (NULL == op->local_ibf)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to allocate local IBF\n");
+    return GNUNET_SYSERR;
+  }
+  GNUNET_CONTAINER_multihashmap32_iterate (op->key_to_element,
+                                           &prepare_ibf_iterator,
+                                           op);
+  return GNUNET_OK;
 }
 
 
@@ -2029,77 +2028,77 @@ static int
 send_ibf (struct Operation *op,
           uint32_t ibf_size)
 {
-    uint64_t buckets_sent = 0;
-    struct InvertibleBloomFilter *ibf;
-    op->differential_sync_iterations++;
+  uint64_t buckets_sent = 0;
+  struct InvertibleBloomFilter *ibf;
+  op->differential_sync_iterations++;
 
-    /**
-     * Enforce min size of IBF
-     */
-    uint32_t ibf_min_size = IBF_MIN_SIZE;
+  /**
+   * Enforce min size of IBF
+   */
+  uint32_t ibf_min_size = IBF_MIN_SIZE;
 
-    if (ibf_size < ibf_min_size)
-    {
-        ibf_size = ibf_min_size;
-    }
-    if (GNUNET_OK !=
-        prepare_ibf (op, ibf_size))
-    {
-        /* allocation failed */
-        return GNUNET_SYSERR;
-    }
+  if (ibf_size < ibf_min_size)
+  {
+    ibf_size = ibf_min_size;
+  }
+  if (GNUNET_OK !=
+      prepare_ibf (op, ibf_size))
+  {
+    /* allocation failed */
+    return GNUNET_SYSERR;
+  }
 
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "sending ibf of size %u\n",
-         1 << ibf_size);
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "sending ibf of size %u\n",
+       1 << ibf_size);
 
-    {
-        char name[64];
-        GNUNET_snprintf (name, sizeof(name), "# sent IBF (order %u)", 
ibf_size);
-        GNUNET_STATISTICS_update (_GSS_statistics, name, 1, GNUNET_NO);
-    }
+  {
+    char name[64];
+    GNUNET_snprintf (name, sizeof(name), "# sent IBF (order %u)", ibf_size);
+    GNUNET_STATISTICS_update (_GSS_statistics, name, 1, GNUNET_NO);
+  }
 
-    ibf = op->local_ibf;
+  ibf = op->local_ibf;
 
-    while (buckets_sent < ibf_size)
-    {
-        unsigned int buckets_in_message;
-        struct GNUNET_MQ_Envelope *ev;
-        struct IBFMessage *msg;
+  while (buckets_sent < ibf_size)
+  {
+    unsigned int buckets_in_message;
+    struct GNUNET_MQ_Envelope *ev;
+    struct IBFMessage *msg;
 
-        buckets_in_message = ibf_size - buckets_sent;
-        /* limit to maximum */
-        if (buckets_in_message > MAX_BUCKETS_PER_MESSAGE)
-            buckets_in_message = MAX_BUCKETS_PER_MESSAGE;
+    buckets_in_message = ibf_size - buckets_sent;
+    /* limit to maximum */
+    if (buckets_in_message > MAX_BUCKETS_PER_MESSAGE)
+      buckets_in_message = MAX_BUCKETS_PER_MESSAGE;
 
 #if MEASURE_PERFORMANCE
-        perf_store.ibf.sent += 1;
+    perf_store.ibf.sent += 1;
     perf_store.ibf.sent_var_bytes += (buckets_in_message * IBF_BUCKET_SIZE);
 #endif
-        ev = GNUNET_MQ_msg_extra (msg,
-                                  buckets_in_message * IBF_BUCKET_SIZE,
-                                  GNUNET_MESSAGE_TYPE_SETU_P2P_IBF);
-        msg->ibf_size = ibf_size;
-        msg->offset = htonl (buckets_sent);
-        msg->salt = htonl (op->salt_send);
-        msg->ibf_counter_bit_length = ibf_get_max_counter (ibf);
-
-
-        ibf_write_slice (ibf, buckets_sent,
-                         buckets_in_message, &msg[1], 
msg->ibf_counter_bit_length);
-        buckets_sent += buckets_in_message;
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "ibf chunk size %u, %lu/%u sent\n",
-             buckets_in_message,
-             buckets_sent,
-             ibf_size);
-        GNUNET_MQ_send (op->mq, ev);
-    }
+    ev = GNUNET_MQ_msg_extra (msg,
+                              buckets_in_message * IBF_BUCKET_SIZE,
+                              GNUNET_MESSAGE_TYPE_SETU_P2P_IBF);
+    msg->ibf_size = ibf_size;
+    msg->offset = htonl (buckets_sent);
+    msg->salt = htonl (op->salt_send);
+    msg->ibf_counter_bit_length = ibf_get_max_counter (ibf);
+
+
+    ibf_write_slice (ibf, buckets_sent,
+                     buckets_in_message, &msg[1], msg->ibf_counter_bit_length);
+    buckets_sent += buckets_in_message;
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "ibf chunk size %u, %lu/%u sent\n",
+         buckets_in_message,
+         buckets_sent,
+         ibf_size);
+    GNUNET_MQ_send (op->mq, ev);
+  }
 
-    /* The other peer must decode the IBF, so
-     * we're passive. */
-    op->phase = PHASE_PASSIVE_DECODING;
-    return GNUNET_OK;
+  /* The other peer must decode the IBF, so
+   * we're passive. */
+  op->phase = PHASE_PASSIVE_DECODING;
+  return GNUNET_OK;
 }
 
 
@@ -2114,20 +2113,20 @@ static unsigned int
 get_size_from_difference (unsigned int diff, int number_buckets_per_element,
                           float ibf_bucket_number_factor)
 {
-    /** Make ibf estimation size odd **/
-    return (((int) (diff * ibf_bucket_number_factor)) | 1);
+  /** Make ibf estimation size odd **/
+  return (((int) (diff * ibf_bucket_number_factor)) | 1);
 
 }
 
 
 static unsigned int
 get_next_ibf_size (float ibf_bucket_number_factor, unsigned int
-decoded_elements, unsigned int last_ibf_size)
+                   decoded_elements, unsigned int last_ibf_size)
 {
-    unsigned int next_size = (unsigned int) ((last_ibf_size * 2)
-                                             - (ibf_bucket_number_factor
-                                                * decoded_elements));
-    return next_size | 1;
+  unsigned int next_size = (unsigned int) ((last_ibf_size * 2)
+                                           - (ibf_bucket_number_factor
+                                              * decoded_elements));
+  return next_size | 1;
 }
 
 
@@ -2145,29 +2144,29 @@ send_full_element_iterator (void *cls,
                             const struct GNUNET_HashCode *key,
                             void *value)
 {
-    struct Operation *op = cls;
-    struct GNUNET_SETU_ElementMessage *emsg;
-    struct ElementEntry *ee = value;
-    struct GNUNET_SETU_Element *el = &ee->element;
-    struct GNUNET_MQ_Envelope *ev;
-
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Sending element %s\n",
-         GNUNET_h2s (key));
+  struct Operation *op = cls;
+  struct GNUNET_SETU_ElementMessage *emsg;
+  struct ElementEntry *ee = value;
+  struct GNUNET_SETU_Element *el = &ee->element;
+  struct GNUNET_MQ_Envelope *ev;
+
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Sending element %s\n",
+       GNUNET_h2s (key));
 #if MEASURE_PERFORMANCE
-    perf_store.element_full.received += 1;
+  perf_store.element_full.received += 1;
   perf_store.element_full.received_var_bytes += el->size;
 #endif
-    ev = GNUNET_MQ_msg_extra (emsg,
-                              el->size,
-                              GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_ELEMENT);
-    emsg->element_type = htons (el->element_type);
-    GNUNET_memcpy (&emsg[1],
-                   el->data,
-                   el->size);
-    GNUNET_MQ_send (op->mq,
-                    ev);
-    return GNUNET_YES;
+  ev = GNUNET_MQ_msg_extra (emsg,
+                            el->size,
+                            GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_ELEMENT);
+  emsg->element_type = htons (el->element_type);
+  GNUNET_memcpy (&emsg[1],
+                 el->data,
+                 el->size);
+  GNUNET_MQ_send (op->mq,
+                  ev);
+  return GNUNET_YES;
 }
 
 
@@ -2179,35 +2178,35 @@ send_full_element_iterator (void *cls,
 static void
 send_full_set (struct Operation *op)
 {
-    struct GNUNET_MQ_Envelope *ev;
-
-    op->phase = PHASE_FULL_SENDING;
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Dedicing to transmit the full set\n");
-    /* FIXME: use a more memory-friendly way of doing this with an
-       iterator, just as we do in the non-full case! */
-
-    // Randomize Elements to send
-    op->set->content->elements_randomized = 
GNUNET_CONTAINER_multihashmap_create (
-            32,GNUNET_NO);
-    op->set->content->elements_randomized_salt = GNUNET_CRYPTO_random_u64 (
-            GNUNET_CRYPTO_QUALITY_NONCE,
-            UINT64_MAX);
-    (void) GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
-                                                  &
-                                                          
create_randomized_element_iterator,
-                                                  op);
-
-    (void) GNUNET_CONTAINER_multihashmap_iterate (
-            op->set->content->elements_randomized,
-            &send_full_element_iterator,
-            op);
+  struct GNUNET_MQ_Envelope *ev;
+
+  op->phase = PHASE_FULL_SENDING;
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Dedicing to transmit the full set\n");
+  /* FIXME: use a more memory-friendly way of doing this with an
+     iterator, just as we do in the non-full case! */
+
+  // Randomize Elements to send
+  op->set->content->elements_randomized = GNUNET_CONTAINER_multihashmap_create 
(
+    32,GNUNET_NO);
+  op->set->content->elements_randomized_salt = GNUNET_CRYPTO_random_u64 (
+    GNUNET_CRYPTO_QUALITY_NONCE,
+    UINT64_MAX);
+  (void) GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
+                                                &
+                                                
create_randomized_element_iterator,
+                                                op);
+
+  (void) GNUNET_CONTAINER_multihashmap_iterate (
+    op->set->content->elements_randomized,
+    &send_full_element_iterator,
+    op);
 #if MEASURE_PERFORMANCE
-    perf_store.full_done.sent += 1;
+  perf_store.full_done.sent += 1;
 #endif
-    ev = GNUNET_MQ_msg_header (GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_DONE);
-    GNUNET_MQ_send (op->mq,
-                    ev);
+  ev = GNUNET_MQ_msg_header (GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_DONE);
+  GNUNET_MQ_send (op->mq,
+                  ev);
 }
 
 
@@ -2221,25 +2220,25 @@ static int
 check_union_p2p_strata_estimator (void *cls,
                                   const struct StrataEstimatorMessage *msg)
 {
-    struct Operation *op = cls;
-    int is_compressed;
-    size_t len;
+  struct Operation *op = cls;
+  int is_compressed;
+  size_t len;
 
-    if (op->phase != PHASE_EXPECT_SE)
-    {
-        GNUNET_break (0);
-        return GNUNET_SYSERR;
-    }
-    is_compressed = (GNUNET_MESSAGE_TYPE_SETU_P2P_SEC == htons (
-            msg->header.type));
-    len = ntohs (msg->header.size) - sizeof(struct StrataEstimatorMessage);
-    if ((GNUNET_NO == is_compressed) &&
-        (len != SE_STRATA_COUNT * SE_IBFS_TOTAL_SIZE * IBF_BUCKET_SIZE))
-    {
-        GNUNET_break (0);
-        return GNUNET_SYSERR;
-    }
-    return GNUNET_OK;
+  if (op->phase != PHASE_EXPECT_SE)
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  is_compressed = (GNUNET_MESSAGE_TYPE_SETU_P2P_SEC == htons (
+                     msg->header.type));
+  len = ntohs (msg->header.size) - sizeof(struct StrataEstimatorMessage);
+  if ((GNUNET_NO == is_compressed) &&
+      (len != SE_STRATA_COUNT * SE_IBFS_TOTAL_SIZE * IBF_BUCKET_SIZE))
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
 }
 
 
@@ -2254,250 +2253,250 @@ handle_union_p2p_strata_estimator (void *cls,
                                    const struct StrataEstimatorMessage *msg)
 {
 #if MEASURE_PERFORMANCE
-    perf_store.se.received += 1;
+  perf_store.se.received += 1;
   perf_store.se.received_var_bytes += ntohs (msg->header.size) - sizeof(struct
                                                                         
StrataEstimatorMessage);
 #endif
-    struct Operation *op = cls;
-    struct MultiStrataEstimator *remote_se;
-    unsigned int diff;
-    uint64_t other_size;
-    size_t len;
-    int is_compressed;
-    op->local_element_count = GNUNET_CONTAINER_multihashmap_size (
-            op->set->content->elements);
-    // Setting peer site to receiving peer
-    op->peer_site = 1;
-
-    /**
-     * Check that the message is received only in supported phase
-     */
-    uint8_t allowed_phases[] = {PHASE_EXPECT_SE};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  struct Operation *op = cls;
+  struct MultiStrataEstimator *remote_se;
+  unsigned int diff;
+  uint64_t other_size;
+  size_t len;
+  int is_compressed;
+  op->local_element_count = GNUNET_CONTAINER_multihashmap_size (
+    op->set->content->elements);
+  // Setting peer site to receiving peer
+  op->peer_site = 1;
 
-    /** Only allow 1,2,4,8 SEs **/
-    if ((msg->se_count > 8) || (__builtin_popcount ((int) msg->se_count) != 1))
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "PROTOCOL VIOLATION: Invalid number of se transmitted by other 
peer %u\n",
-             msg->se_count);
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+   * Check that the message is received only in supported phase
+   */
+  uint8_t allowed_phases[] = {PHASE_EXPECT_SE};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    is_compressed = (GNUNET_MESSAGE_TYPE_SETU_P2P_SEC == htons (
-            msg->header.type));
-    GNUNET_STATISTICS_update (_GSS_statistics,
-                              "# bytes of SE received",
-                              ntohs (msg->header.size),
-                              GNUNET_NO);
-    len = ntohs (msg->header.size) - sizeof(struct StrataEstimatorMessage);
-    other_size = GNUNET_ntohll (msg->set_size);
-    op->remote_element_count = other_size;
+  /** Only allow 1,2,4,8 SEs **/
+  if ((msg->se_count > 8) || (__builtin_popcount ((int) msg->se_count) != 1))
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "PROTOCOL VIOLATION: Invalid number of se transmitted by other peer 
%u\n",
+         msg->se_count);
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    if (op->byzantine_upper_bound < op->remote_element_count)
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "Exceeded configured upper bound <%lu> of element: %u\n",
-             op->byzantine_upper_bound,
-             op->remote_element_count);
-        fail_union_operation (op);
-        return;
-    }
+  is_compressed = (GNUNET_MESSAGE_TYPE_SETU_P2P_SEC == htons (
+                     msg->header.type));
+  GNUNET_STATISTICS_update (_GSS_statistics,
+                            "# bytes of SE received",
+                            ntohs (msg->header.size),
+                            GNUNET_NO);
+  len = ntohs (msg->header.size) - sizeof(struct StrataEstimatorMessage);
+  other_size = GNUNET_ntohll (msg->set_size);
+  op->remote_element_count = other_size;
+
+  if (op->byzantine_upper_bound < op->remote_element_count)
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "Exceeded configured upper bound <%lu> of element: %u\n",
+         op->byzantine_upper_bound,
+         op->remote_element_count);
+    fail_union_operation (op);
+    return;
+  }
 
-    remote_se = strata_estimator_create (SE_STRATA_COUNT,
-                                         SE_IBFS_TOTAL_SIZE,
-                                         SE_IBF_HASH_NUM);
-    if (NULL == remote_se)
-    {
-        /* insufficient resources, fail */
-        fail_union_operation (op);
-        return;
-    }
-    if (GNUNET_OK !=
-        strata_estimator_read (&msg[1],
-                               len,
-                               is_compressed,
-                               msg->se_count,
-                               SE_IBFS_TOTAL_SIZE,
-                               remote_se))
-    {
-        /* decompression failed */
-        strata_estimator_destroy (remote_se);
-        fail_union_operation (op);
-        return;
-    }
-    GNUNET_assert (NULL != op->se);
-    strata_estimator_difference (remote_se,
-                                 op->se);
-
-    /* Calculate remote local diff */
-    long diff_remote = remote_se->stratas[0]->strata[0]->remote_decoded_count;
-    long diff_local = remote_se->stratas[0]->strata[0]->local_decoded_count;
-
-    /* Prevent estimations from overshooting max element */
-    if (diff_remote + op->remote_element_count > op->byzantine_upper_bound)
-        diff_remote = op->byzantine_upper_bound - op->remote_element_count;
-    if (diff_local + op->local_element_count > op->byzantine_upper_bound)
-        diff_local = op->byzantine_upper_bound - op->local_element_count;
-    if ((diff_remote < 0) || (diff_local < 0))
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "PROTOCOL VIOLATION: More element is set as upper boundary or 
other peer is "
-             "malicious: remote diff %ld, local diff: %ld\n",
-             diff_remote, diff_local);
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
+  remote_se = strata_estimator_create (SE_STRATA_COUNT,
+                                       SE_IBFS_TOTAL_SIZE,
+                                       SE_IBF_HASH_NUM);
+  if (NULL == remote_se)
+  {
+    /* insufficient resources, fail */
+    fail_union_operation (op);
+    return;
+  }
+  if (GNUNET_OK !=
+      strata_estimator_read (&msg[1],
+                             len,
+                             is_compressed,
+                             msg->se_count,
+                             SE_IBFS_TOTAL_SIZE,
+                             remote_se))
+  {
+    /* decompression failed */
+    strata_estimator_destroy (remote_se);
+    fail_union_operation (op);
+    return;
+  }
+  GNUNET_assert (NULL != op->se);
+  strata_estimator_difference (remote_se,
+                               op->se);
+
+  /* Calculate remote local diff */
+  long diff_remote = remote_se->stratas[0]->strata[0]->remote_decoded_count;
+  long diff_local = remote_se->stratas[0]->strata[0]->local_decoded_count;
+
+  /* Prevent estimations from overshooting max element */
+  if (diff_remote + op->remote_element_count > op->byzantine_upper_bound)
+    diff_remote = op->byzantine_upper_bound - op->remote_element_count;
+  if (diff_local + op->local_element_count > op->byzantine_upper_bound)
+    diff_local = op->byzantine_upper_bound - op->local_element_count;
+  if ((diff_remote < 0) || (diff_local < 0))
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "PROTOCOL VIOLATION: More element is set as upper boundary or other 
peer is "
+         "malicious: remote diff %ld, local diff: %ld\n",
+         diff_remote, diff_local);
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    /* Make estimation more precise in initial sync cases */
-    if (0 == op->remote_element_count)
-    {
-        diff_remote = 0;
-        diff_local = op->local_element_count;
-    }
-    if (0 == op->local_element_count)
-    {
-        diff_local = 0;
-        diff_remote = op->remote_element_count;
-    }
+  /* Make estimation more precise in initial sync cases */
+  if (0 == op->remote_element_count)
+  {
+    diff_remote = 0;
+    diff_local = op->local_element_count;
+  }
+  if (0 == op->local_element_count)
+  {
+    diff_local = 0;
+    diff_remote = op->remote_element_count;
+  }
 
-    diff = diff_remote + diff_local;
-    op->remote_set_diff = diff_remote;
+  diff = diff_remote + diff_local;
+  op->remote_set_diff = diff_remote;
 
-    /** Calculate avg element size if not initial sync **/
-    uint64_t avg_element_size = 0;
-    if (0 < op->local_element_count)
-    {
-        GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
-                                               &
-                                                       
determinate_avg_element_size_iterator,
-                                               op);
-        avg_element_size = op->total_elements_size_local / 
op->local_element_count;
-    }
+  /** Calculate avg element size if not initial sync **/
+  uint64_t avg_element_size = 0;
+  if (0 < op->local_element_count)
+  {
+    GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
+                                           &
+                                           
determinate_avg_element_size_iterator,
+                                           op);
+    avg_element_size = op->total_elements_size_local / op->local_element_count;
+  }
 
-    op->mode_of_operation = estimate_best_mode_of_operation (avg_element_size,
-                                                             
GNUNET_CONTAINER_multihashmap_size (
-                                                                     
op->set->content->
-                                                                             
elements),
-                                                             op->
-                                                                     
remote_element_count,
-                                                             diff_local,
-                                                             diff_remote,
-                                                             op->
-                                                                     
rtt_bandwidth_tradeoff,
-                                                             op->
-                                                                     
ibf_bucket_number_factor);
+  op->mode_of_operation = estimate_best_mode_of_operation (avg_element_size,
+                                                           
GNUNET_CONTAINER_multihashmap_size (
+                                                             op->set->content->
+                                                             elements),
+                                                           op->
+                                                           
remote_element_count,
+                                                           diff_local,
+                                                           diff_remote,
+                                                           op->
+                                                           
rtt_bandwidth_tradeoff,
+                                                           op->
+                                                           
ibf_bucket_number_factor);
 
 #if MEASURE_PERFORMANCE
-    perf_store.se_diff_local = diff_local;
+  perf_store.se_diff_local = diff_local;
   perf_store.se_diff_remote = diff_remote;
   perf_store.se_diff = diff;
   perf_store.mode_of_operation = op->mode_of_operation;
 #endif
 
-    strata_estimator_destroy (remote_se);
-    strata_estimator_destroy (op->se);
-    op->se = NULL;
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "got se diff=%d, using ibf size %d\n",
-         diff,
-         1U << get_size_from_difference (diff, 
op->ibf_number_buckets_per_element,
-                                         op->ibf_bucket_number_factor));
-
-    {
-        char *set_debug;
+  strata_estimator_destroy (remote_se);
+  strata_estimator_destroy (op->se);
+  op->se = NULL;
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "got se diff=%d, using ibf size %d\n",
+       diff,
+       1U << get_size_from_difference (diff, 
op->ibf_number_buckets_per_element,
+                                       op->ibf_bucket_number_factor));
 
-        set_debug = getenv ("GNUNET_SETU_BENCHMARK");
-        if ((NULL != set_debug) &&
-            (0 == strcmp (set_debug, "1")))
-        {
-            FILE *f = fopen ("set.log", "a");
-            fprintf (f, "%llu\n", (unsigned long long) diff);
-            fclose (f);
-        }
-    }
+  {
+    char *set_debug;
 
-    if ((GNUNET_YES == op->byzantine) &&
-        (other_size < op->byzantine_lower_bound))
+    set_debug = getenv ("GNUNET_SETU_BENCHMARK");
+    if ((NULL != set_debug) &&
+        (0 == strcmp (set_debug, "1")))
     {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
+      FILE *f = fopen ("set.log", "a");
+      fprintf (f, "%llu\n", (unsigned long long) diff);
+      fclose (f);
     }
+  }
 
-    if ((GNUNET_YES == op->force_full) ||
-        (op->mode_of_operation != DIFFERENTIAL_SYNC))
+  if ((GNUNET_YES == op->byzantine) &&
+      (other_size < op->byzantine_lower_bound))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
+
+  if ((GNUNET_YES == op->force_full) ||
+      (op->mode_of_operation != DIFFERENTIAL_SYNC))
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Deciding to go for full set transmission (diff=%d, own set=%llu)\n",
+         diff,
+         (unsigned long long) op->initial_size);
+    GNUNET_STATISTICS_update (_GSS_statistics,
+                              "# of full sends",
+                              1,
+                              GNUNET_NO);
+    if (FULL_SYNC_LOCAL_SENDING_FIRST == op->mode_of_operation)
+    {
+      struct TransmitFullMessage *signal_msg;
+      struct GNUNET_MQ_Envelope *ev;
+      ev = GNUNET_MQ_msg_extra (signal_msg,sizeof(struct TransmitFullMessage),
+                                GNUNET_MESSAGE_TYPE_SETU_P2P_SEND_FULL);
+      signal_msg->remote_set_difference = htonl (diff_local);
+      signal_msg->remote_set_size = htonl (op->local_element_count);
+      signal_msg->local_set_difference = htonl (diff_remote);
+      GNUNET_MQ_send (op->mq,
+                      ev);
+      send_full_set (op);
+    }
+    else
     {
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "Deciding to go for full set transmission (diff=%d, own 
set=%llu)\n",
-             diff,
-             (unsigned long long) op->initial_size);
-        GNUNET_STATISTICS_update (_GSS_statistics,
-                                  "# of full sends",
-                                  1,
-                                  GNUNET_NO);
-        if (FULL_SYNC_LOCAL_SENDING_FIRST == op->mode_of_operation)
-        {
-            struct TransmitFullMessage *signal_msg;
-            struct GNUNET_MQ_Envelope *ev;
-            ev = GNUNET_MQ_msg_extra (signal_msg,sizeof(struct 
TransmitFullMessage),
-                                      GNUNET_MESSAGE_TYPE_SETU_P2P_SEND_FULL);
-            signal_msg->remote_set_difference = htonl (diff_local);
-            signal_msg->remote_set_size = htonl (op->local_element_count);
-            signal_msg->local_set_difference = htonl (diff_remote);
-            GNUNET_MQ_send (op->mq,
-                            ev);
-            send_full_set (op);
-        }
-        else
-        {
-            struct GNUNET_MQ_Envelope *ev;
+      struct GNUNET_MQ_Envelope *ev;
 
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "Telling other peer that we expect its full set\n");
-            op->phase = PHASE_FULL_RECEIVING;
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "Telling other peer that we expect its full set\n");
+      op->phase = PHASE_FULL_RECEIVING;
 #if MEASURE_PERFORMANCE
-            perf_store.request_full.sent += 1;
+      perf_store.request_full.sent += 1;
 #endif
-            struct TransmitFullMessage *signal_msg;
-            ev = GNUNET_MQ_msg_extra (signal_msg,sizeof(struct 
TransmitFullMessage),
-                                      
GNUNET_MESSAGE_TYPE_SETU_P2P_REQUEST_FULL);
-            signal_msg->remote_set_difference = htonl (diff_local);
-            signal_msg->remote_set_size = htonl (op->local_element_count);
-            signal_msg->local_set_difference = htonl (diff_remote);
-            GNUNET_MQ_send (op->mq,
-                            ev);
-        }
+      struct TransmitFullMessage *signal_msg;
+      ev = GNUNET_MQ_msg_extra (signal_msg,sizeof(struct TransmitFullMessage),
+                                GNUNET_MESSAGE_TYPE_SETU_P2P_REQUEST_FULL);
+      signal_msg->remote_set_difference = htonl (diff_local);
+      signal_msg->remote_set_size = htonl (op->local_element_count);
+      signal_msg->local_set_difference = htonl (diff_remote);
+      GNUNET_MQ_send (op->mq,
+                      ev);
     }
-    else
+  }
+  else
+  {
+    GNUNET_STATISTICS_update (_GSS_statistics,
+                              "# of ibf sends",
+                              1,
+                              GNUNET_NO);
+    if (GNUNET_OK !=
+        send_ibf (op,
+                  get_size_from_difference (diff,
+                                            op->ibf_number_buckets_per_element,
+                                            op->ibf_bucket_number_factor)))
     {
-        GNUNET_STATISTICS_update (_GSS_statistics,
-                                  "# of ibf sends",
-                                  1,
-                                  GNUNET_NO);
-        if (GNUNET_OK !=
-            send_ibf (op,
-                      get_size_from_difference (diff,
-                                                
op->ibf_number_buckets_per_element,
-                                                op->ibf_bucket_number_factor)))
-        {
-            /* Internal error, best we can do is shut the connection */
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "Failed to send IBF, closing connection\n");
-            fail_union_operation (op);
-            return;
-        }
+      /* Internal error, best we can do is shut the connection */
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to send IBF, closing connection\n");
+      fail_union_operation (op);
+      return;
     }
-    GNUNET_CADET_receive_done (op->channel);
+  }
+  GNUNET_CADET_receive_done (op->channel);
 }
 
 
@@ -2513,77 +2512,77 @@ send_offers_iterator (void *cls,
                       uint32_t key,
                       void *value)
 {
-    struct SendElementClosure *sec = cls;
-    struct Operation *op = sec->op;
-    struct KeyEntry *ke = value;
-    struct GNUNET_MQ_Envelope *ev;
-    struct GNUNET_MessageHeader *mh;
-
-    /* Detect 32-bit key collision for the 64-bit IBF keys. */
-    if (ke->ibf_key.key_val != sec->ibf_key.key_val)
-        return GNUNET_YES;
-
-    /* Prevent implementation from sending a offer multible times in case of 
roll switch */
-    if (GNUNET_YES !=
-        is_message_in_message_control_flow (
-                op->message_control_flow,
-                &ke->element->element_hash,
-                OFFER_MESSAGE)
-            )
-    {
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "Skipping already sent processed element offer!\n");
-        return GNUNET_YES;
-    }
+  struct SendElementClosure *sec = cls;
+  struct Operation *op = sec->op;
+  struct KeyEntry *ke = value;
+  struct GNUNET_MQ_Envelope *ev;
+  struct GNUNET_MessageHeader *mh;
+
+  /* Detect 32-bit key collision for the 64-bit IBF keys. */
+  if (ke->ibf_key.key_val != sec->ibf_key.key_val)
+    return GNUNET_YES;
 
-    /* Save send offer message for message control */
-    if (GNUNET_YES !=
-        update_message_control_flow (
-                op->message_control_flow,
-                MESSAGE_SENT,
-                &ke->element->element_hash,
-                OFFER_MESSAGE)
-            )
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "Double offer message sent found!\n");
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return GNUNET_NO;
-    }
-    ;
+  /* Prevent implementation from sending a offer multible times in case of 
roll switch */
+  if (GNUNET_YES !=
+      is_message_in_message_control_flow (
+        op->message_control_flow,
+        &ke->element->element_hash,
+        OFFER_MESSAGE)
+      )
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Skipping already sent processed element offer!\n");
+    return GNUNET_YES;
+  }
 
-    /* Mark element to be expected to received */
-    if (GNUNET_YES !=
-        update_message_control_flow (
-                op->message_control_flow,
-                MESSAGE_EXPECTED,
-                &ke->element->element_hash,
-                DEMAND_MESSAGE)
-            )
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "Double demand received found!\n");
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return GNUNET_NO;
-    }
-    ;
+  /* Save send offer message for message control */
+  if (GNUNET_YES !=
+      update_message_control_flow (
+        op->message_control_flow,
+        MESSAGE_SENT,
+        &ke->element->element_hash,
+        OFFER_MESSAGE)
+      )
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "Double offer message sent found!\n");
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return GNUNET_NO;
+  }
+  ;
+
+  /* Mark element to be expected to received */
+  if (GNUNET_YES !=
+      update_message_control_flow (
+        op->message_control_flow,
+        MESSAGE_EXPECTED,
+        &ke->element->element_hash,
+        DEMAND_MESSAGE)
+      )
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "Double demand received found!\n");
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return GNUNET_NO;
+  }
+  ;
 #if MEASURE_PERFORMANCE
-    perf_store.offer.sent += 1;
+  perf_store.offer.sent += 1;
   perf_store.offer.sent_var_bytes += sizeof(struct GNUNET_HashCode);
 #endif
-    ev = GNUNET_MQ_msg_header_extra (mh,
-                                     sizeof(struct GNUNET_HashCode),
-                                     GNUNET_MESSAGE_TYPE_SETU_P2P_OFFER);
-    GNUNET_assert (NULL != ev);
-    *(struct GNUNET_HashCode *) &mh[1] = ke->element->element_hash;
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "[OP %p] sending element offer (%s) to peer\n",
-         op,
-         GNUNET_h2s (&ke->element->element_hash));
-    GNUNET_MQ_send (op->mq, ev);
-    return GNUNET_YES;
+  ev = GNUNET_MQ_msg_header_extra (mh,
+                                   sizeof(struct GNUNET_HashCode),
+                                   GNUNET_MESSAGE_TYPE_SETU_P2P_OFFER);
+  GNUNET_assert (NULL != ev);
+  *(struct GNUNET_HashCode *) &mh[1] = ke->element->element_hash;
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "[OP %p] sending element offer (%s) to peer\n",
+       op,
+       GNUNET_h2s (&ke->element->element_hash));
+  GNUNET_MQ_send (op->mq, ev);
+  return GNUNET_YES;
 }
 
 
@@ -2593,20 +2592,20 @@ send_offers_iterator (void *cls,
  * @param op union operation
  * @param ibf_key IBF key of interest
  */
- void
+void
 send_offers_for_key (struct Operation *op,
                      struct IBF_Key ibf_key)
 {
-    struct SendElementClosure send_cls;
-
-    send_cls.ibf_key = ibf_key;
-    send_cls.op = op;
-    (void) GNUNET_CONTAINER_multihashmap32_get_multiple (
-            op->key_to_element,
-            (uint32_t) ibf_key.
-                    key_val,
-            &send_offers_iterator,
-            &send_cls);
+  struct SendElementClosure send_cls;
+
+  send_cls.ibf_key = ibf_key;
+  send_cls.op = op;
+  (void) GNUNET_CONTAINER_multihashmap32_get_multiple (
+    op->key_to_element,
+    (uint32_t) ibf_key.
+    key_val,
+    &send_offers_iterator,
+    &send_cls);
 }
 
 
@@ -2620,194 +2619,194 @@ send_offers_for_key (struct Operation *op,
 static int
 decode_and_send (struct Operation *op)
 {
-    struct IBF_Key key;
-    struct IBF_Key last_key;
-    int side;
-    unsigned int num_decoded;
-    struct InvertibleBloomFilter *diff_ibf;
+  struct IBF_Key key;
+  struct IBF_Key last_key;
+  int side;
+  unsigned int num_decoded;
+  struct InvertibleBloomFilter *diff_ibf;
+
+  GNUNET_assert (PHASE_ACTIVE_DECODING == op->phase);
+
+  if (GNUNET_OK !=
+      prepare_ibf (op,
+                   op->remote_ibf->size))
+  {
+    GNUNET_break (0);
+    /* allocation failed */
+    return GNUNET_SYSERR;
+  }
 
-    GNUNET_assert (PHASE_ACTIVE_DECODING == op->phase);
+  diff_ibf = ibf_dup (op->local_ibf);
+  ibf_subtract (diff_ibf,
+                op->remote_ibf);
 
-    if (GNUNET_OK !=
-        prepare_ibf (op,
-                     op->remote_ibf->size))
-    {
-        GNUNET_break (0);
-        /* allocation failed */
-        return GNUNET_SYSERR;
-    }
+  ibf_destroy (op->remote_ibf);
+  op->remote_ibf = NULL;
 
-    diff_ibf = ibf_dup (op->local_ibf);
-    ibf_subtract (diff_ibf,
-                  op->remote_ibf);
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "decoding IBF (size=%u)\n",
+       diff_ibf->size);
 
-    ibf_destroy (op->remote_ibf);
-    op->remote_ibf = NULL;
+  num_decoded = 0;
+  key.key_val = 0;   /* just to avoid compiler thinking we use undef'ed 
variable */
 
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "decoding IBF (size=%u)\n",
-         diff_ibf->size);
+  while (1)
+  {
+    int res;
+    int cycle_detected = GNUNET_NO;
+
+    last_key = key;
+
+    res = ibf_decode (diff_ibf,
+                      &side,
+                      &key);
+    if (res == GNUNET_OK)
+    {
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "decoded ibf key %lx\n",
+           (unsigned long) key.key_val);
+      num_decoded += 1;
+      if ((num_decoded > diff_ibf->size) ||
+          ((num_decoded > 1) &&
+           (last_key.key_val == key.key_val)))
+      {
+        LOG (GNUNET_ERROR_TYPE_DEBUG,
+             "detected cyclic ibf (decoded %u/%u)\n",
+             num_decoded,
+             diff_ibf->size);
+        cycle_detected = GNUNET_YES;
+      }
+    }
+    if ((GNUNET_SYSERR == res) ||
+        (GNUNET_YES == cycle_detected))
+    {
+      uint32_t next_size;
+      /** Enforce odd ibf size **/
 
-    num_decoded = 0;
-    key.key_val = 0; /* just to avoid compiler thinking we use undef'ed 
variable */
+      next_size = get_next_ibf_size (op->ibf_bucket_number_factor, num_decoded,
+                                     diff_ibf->size);
+      uint32_t ibf_min_size = IBF_MIN_SIZE | 1;
 
-    while (1)
-    {
-        int res;
-        int cycle_detected = GNUNET_NO;
+      if (next_size<ibf_min_size)
+        next_size = ibf_min_size;
 
-        last_key = key;
 
-        res = ibf_decode (diff_ibf,
-                          &side,
-                          &key);
-        if (res == GNUNET_OK)
-        {
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "decoded ibf key %lx\n",
-                 (unsigned long) key.key_val);
-            num_decoded += 1;
-            if ((num_decoded > diff_ibf->size) ||
-                ((num_decoded > 1) &&
-                 (last_key.key_val == key.key_val)))
-            {
-                LOG (GNUNET_ERROR_TYPE_DEBUG,
-                     "detected cyclic ibf (decoded %u/%u)\n",
-                     num_decoded,
-                     diff_ibf->size);
-                cycle_detected = GNUNET_YES;
-            }
-        }
-        if ((GNUNET_SYSERR == res) ||
-            (GNUNET_YES == cycle_detected))
-        {
-            uint32_t next_size;
-            /** Enforce odd ibf size **/
-
-            next_size = get_next_ibf_size (op->ibf_bucket_number_factor, 
num_decoded,
-                                           diff_ibf->size);
-            uint32_t ibf_min_size = IBF_MIN_SIZE | 1;
-
-            if (next_size<ibf_min_size)
-                next_size = ibf_min_size;
-
-
-            if (next_size <= MAX_IBF_SIZE)
-            {
-                LOG (GNUNET_ERROR_TYPE_DEBUG,
-                     "decoding failed, sending larger ibf (size %u)\n",
-                     next_size);
-                GNUNET_STATISTICS_update (_GSS_statistics,
-                                          "# of IBF retries",
-                                          1,
-                                          GNUNET_NO);
+      if (next_size <= MAX_IBF_SIZE)
+      {
+        LOG (GNUNET_ERROR_TYPE_DEBUG,
+             "decoding failed, sending larger ibf (size %u)\n",
+             next_size);
+        GNUNET_STATISTICS_update (_GSS_statistics,
+                                  "# of IBF retries",
+                                  1,
+                                  GNUNET_NO);
 #if MEASURE_PERFORMANCE
-                perf_store.active_passive_switches += 1;
+        perf_store.active_passive_switches += 1;
 #endif
 
-                op->salt_send = op->salt_receive++;
-
-                if (GNUNET_OK !=
-                    send_ibf (op, next_size))
-                {
-                    /* Internal error, best we can do is shut the connection */
-                    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                                "Failed to send IBF, closing connection\n");
-                    fail_union_operation (op);
-                    ibf_destroy (diff_ibf);
-                    return GNUNET_SYSERR;
-                }
-            }
-            else
-            {
-                GNUNET_STATISTICS_update (_GSS_statistics,
-                                          "# of failed union operations (too 
large)",
-                                          1,
-                                          GNUNET_NO);
-                // XXX: Send the whole set, element-by-element
-                LOG (GNUNET_ERROR_TYPE_ERROR,
-                     "set union failed: reached ibf limit\n");
-                fail_union_operation (op);
-                ibf_destroy (diff_ibf);
-                return GNUNET_SYSERR;
-            }
-            break;
-        }
-        if (GNUNET_NO == res)
+        op->salt_send = op->salt_receive++;
+
+        if (GNUNET_OK !=
+            send_ibf (op, next_size))
         {
-            struct GNUNET_MQ_Envelope *ev;
+          /* Internal error, best we can do is shut the connection */
+          GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                      "Failed to send IBF, closing connection\n");
+          fail_union_operation (op);
+          ibf_destroy (diff_ibf);
+          return GNUNET_SYSERR;
+        }
+      }
+      else
+      {
+        GNUNET_STATISTICS_update (_GSS_statistics,
+                                  "# of failed union operations (too large)",
+                                  1,
+                                  GNUNET_NO);
+        // XXX: Send the whole set, element-by-element
+        LOG (GNUNET_ERROR_TYPE_ERROR,
+             "set union failed: reached ibf limit\n");
+        fail_union_operation (op);
+        ibf_destroy (diff_ibf);
+        return GNUNET_SYSERR;
+      }
+      break;
+    }
+    if (GNUNET_NO == res)
+    {
+      struct GNUNET_MQ_Envelope *ev;
 
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "transmitted all values, sending DONE\n");
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "transmitted all values, sending DONE\n");
 
 #if MEASURE_PERFORMANCE
-            perf_store.done.sent += 1;
+      perf_store.done.sent += 1;
 #endif
-            ev = GNUNET_MQ_msg_header (GNUNET_MESSAGE_TYPE_SETU_P2P_DONE);
-            GNUNET_MQ_send (op->mq, ev);
-            /* We now wait until we get a DONE message back
-             * and then wait for our MQ to be flushed and all our
-             * demands be delivered. */
-            break;
-        }
-        if (1 == side)
-        {
-            struct IBF_Key unsalted_key;
-            unsalt_key (&key,
-                        op->salt_receive,
-                        &unsalted_key);
-            send_offers_for_key (op,
-                                 unsalted_key);
-        }
-        else if (-1 == side)
-        {
-            struct GNUNET_MQ_Envelope *ev;
-            struct InquiryMessage *msg;
+      ev = GNUNET_MQ_msg_header (GNUNET_MESSAGE_TYPE_SETU_P2P_DONE);
+      GNUNET_MQ_send (op->mq, ev);
+      /* We now wait until we get a DONE message back
+       * and then wait for our MQ to be flushed and all our
+       * demands be delivered. */
+      break;
+    }
+    if (1 == side)
+    {
+      struct IBF_Key unsalted_key;
+      unsalt_key (&key,
+                  op->salt_receive,
+                  &unsalted_key);
+      send_offers_for_key (op,
+                           unsalted_key);
+    }
+    else if (-1 == side)
+    {
+      struct GNUNET_MQ_Envelope *ev;
+      struct InquiryMessage *msg;
 
 #if MEASURE_PERFORMANCE
-            perf_store.inquery.sent += 1;
+      perf_store.inquery.sent += 1;
       perf_store.inquery.sent_var_bytes += sizeof(struct IBF_Key);
 #endif
 
-            /** Add sent inquiries to hashmap for flow control **/
-            struct GNUNET_HashContext *hashed_key_context =
-                    GNUNET_CRYPTO_hash_context_start ();
-            struct GNUNET_HashCode *hashed_key = (struct
-                    GNUNET_HashCode*) GNUNET_malloc (
-                    sizeof(struct GNUNET_HashCode));
-            enum MESSAGE_CONTROL_FLOW_STATE mcfs = MESSAGE_SENT;
-            GNUNET_CRYPTO_hash_context_read (hashed_key_context,
-                                             &key,
-                                             sizeof(struct IBF_Key));
-            GNUNET_CRYPTO_hash_context_finish (hashed_key_context,
-                                               hashed_key);
-            GNUNET_CONTAINER_multihashmap_put (op->inquiries_sent,
-                                               hashed_key,
-                                               &mcfs,
-                                               
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE
-            );
-
-            /* It may be nice to merge multiple requests, but with CADET's 
corking it is not worth
-             * the effort additional complexity. */
-            ev = GNUNET_MQ_msg_extra (msg,
-                                      sizeof(struct IBF_Key),
-                                      GNUNET_MESSAGE_TYPE_SETU_P2P_INQUIRY);
-            msg->salt = htonl (op->salt_receive);
-            GNUNET_memcpy (&msg[1],
-                           &key,
-                           sizeof(struct IBF_Key));
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "sending element inquiry for IBF key %lx\n",
-                 (unsigned long) key.key_val);
-            GNUNET_MQ_send (op->mq, ev);
-        }
-        else
-        {
-            GNUNET_assert (0);
-        }
+      /** Add sent inquiries to hashmap for flow control **/
+      struct GNUNET_HashContext *hashed_key_context =
+        GNUNET_CRYPTO_hash_context_start ();
+      struct GNUNET_HashCode *hashed_key = (struct
+                                            GNUNET_HashCode*) GNUNET_malloc (
+        sizeof(struct GNUNET_HashCode));
+      enum MESSAGE_CONTROL_FLOW_STATE mcfs = MESSAGE_SENT;
+      GNUNET_CRYPTO_hash_context_read (hashed_key_context,
+                                       &key,
+                                       sizeof(struct IBF_Key));
+      GNUNET_CRYPTO_hash_context_finish (hashed_key_context,
+                                         hashed_key);
+      GNUNET_CONTAINER_multihashmap_put (op->inquiries_sent,
+                                         hashed_key,
+                                         &mcfs,
+                                         
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE
+                                         );
+
+      /* It may be nice to merge multiple requests, but with CADET's corking 
it is not worth
+       * the effort additional complexity. */
+      ev = GNUNET_MQ_msg_extra (msg,
+                                sizeof(struct IBF_Key),
+                                GNUNET_MESSAGE_TYPE_SETU_P2P_INQUIRY);
+      msg->salt = htonl (op->salt_receive);
+      GNUNET_memcpy (&msg[1],
+                     &key,
+                     sizeof(struct IBF_Key));
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "sending element inquiry for IBF key %lx\n",
+           (unsigned long) key.key_val);
+      GNUNET_MQ_send (op->mq, ev);
     }
-    ibf_destroy (diff_ibf);
-    return GNUNET_OK;
+    else
+    {
+      GNUNET_assert (0);
+    }
+  }
+  ibf_destroy (diff_ibf);
+  return GNUNET_OK;
 }
 
 
@@ -2822,7 +2821,7 @@ static int
 check_union_p2p_send_full (void *cls,
                            const struct TransmitFullMessage *msg)
 {
-    return GNUNET_OK;
+  return GNUNET_OK;
 }
 
 
@@ -2836,72 +2835,72 @@ static void
 handle_union_p2p_send_full (void *cls,
                             const struct TransmitFullMessage *msg)
 {
-    struct Operation *op = cls;
+  struct Operation *op = cls;
 
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_EXPECT_IBF};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_EXPECT_IBF};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    /** write received values to operator**/
-    op->remote_element_count = ntohl (msg->remote_set_size);
-    op->remote_set_diff = ntohl (msg->remote_set_difference);
-    op->local_set_diff = ntohl (msg->local_set_difference);
+  /** write received values to operator**/
+  op->remote_element_count = ntohl (msg->remote_set_size);
+  op->remote_set_diff = ntohl (msg->remote_set_difference);
+  op->local_set_diff = ntohl (msg->local_set_difference);
 
-    /** Check byzantine limits **/
-    if (check_byzantine_bounds (op) != GNUNET_OK)
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "PROTOCOL VIOLATION: Parameters transmitted from other peer do 
not satisfie byzantine "
-             "criteria\n");
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
+  /** Check byzantine limits **/
+  if (check_byzantine_bounds (op) != GNUNET_OK)
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "PROTOCOL VIOLATION: Parameters transmitted from other peer do not 
satisfie byzantine "
+         "criteria\n");
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    /** Calculate avg element size if not initial sync **/
-    op->local_element_count = GNUNET_CONTAINER_multihashmap_size (
-            op->set->content->elements);
-    uint64_t avg_element_size = 0;
-    if (0 < op->local_element_count)
-    {
+  /** Calculate avg element size if not initial sync **/
+  op->local_element_count = GNUNET_CONTAINER_multihashmap_size (
+    op->set->content->elements);
+  uint64_t avg_element_size = 0;
+  if (0 < op->local_element_count)
+  {
 
-        GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
-                                               &
-                                                       
determinate_avg_element_size_iterator,
-                                               op);
-        avg_element_size = op->total_elements_size_local / 
op->local_element_count;
-    }
+    GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
+                                           &
+                                           
determinate_avg_element_size_iterator,
+                                           op);
+    avg_element_size = op->total_elements_size_local / op->local_element_count;
+  }
 
-    /** Validate mode of operation **/
-    int mode_of_operation = estimate_best_mode_of_operation (avg_element_size,
-                                                             op->
-                                                                     
remote_element_count,
-                                                             op->
-                                                                     
local_element_count,
-                                                             
op->remote_set_diff,
-                                                             
op->local_set_diff,
-                                                             op->
-                                                                     
rtt_bandwidth_tradeoff,
-                                                             op->
-                                                                     
ibf_bucket_number_factor);
-    if (FULL_SYNC_LOCAL_SENDING_FIRST != mode_of_operation)
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "PROTOCOL VIOLATION: Remote peer choose to send his full set 
first but correct mode would have been"
-             " : %d\n", mode_of_operation);
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
-    op->phase = PHASE_FULL_RECEIVING;
+  /** Validate mode of operation **/
+  int mode_of_operation = estimate_best_mode_of_operation (avg_element_size,
+                                                           op->
+                                                           
remote_element_count,
+                                                           op->
+                                                           local_element_count,
+                                                           op->remote_set_diff,
+                                                           op->local_set_diff,
+                                                           op->
+                                                           
rtt_bandwidth_tradeoff,
+                                                           op->
+                                                           
ibf_bucket_number_factor);
+  if (FULL_SYNC_LOCAL_SENDING_FIRST != mode_of_operation)
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "PROTOCOL VIOLATION: Remote peer choose to send his full set first 
but correct mode would have been"
+         " : %d\n", mode_of_operation);
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
+  op->phase = PHASE_FULL_RECEIVING;
 }
 
 
@@ -2919,49 +2918,49 @@ static int
 check_union_p2p_ibf (void *cls,
                      const struct IBFMessage *msg)
 {
-    struct Operation *op = cls;
-    unsigned int buckets_in_message;
+  struct Operation *op = cls;
+  unsigned int buckets_in_message;
 
-    buckets_in_message = (ntohs (msg->header.size) - sizeof *msg)
-                         / IBF_BUCKET_SIZE;
-    if (0 == buckets_in_message)
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    if ((ntohs (msg->header.size) - sizeof *msg) != buckets_in_message
-                                                    * IBF_BUCKET_SIZE)
+  buckets_in_message = (ntohs (msg->header.size) - sizeof *msg)
+                       / IBF_BUCKET_SIZE;
+  if (0 == buckets_in_message)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  if ((ntohs (msg->header.size) - sizeof *msg) != buckets_in_message
+      * IBF_BUCKET_SIZE)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  if (op->phase == PHASE_EXPECT_IBF_LAST)
+  {
+    if (ntohl (msg->offset) != op->ibf_buckets_received)
     {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
     }
-    if (op->phase == PHASE_EXPECT_IBF_LAST)
-    {
-        if (ntohl (msg->offset) != op->ibf_buckets_received)
-        {
-            GNUNET_break_op (0);
-            return GNUNET_SYSERR;
-        }
 
-        if (msg->ibf_size != op->remote_ibf->size)
-        {
-            GNUNET_break_op (0);
-            return GNUNET_SYSERR;
-        }
-        if (ntohl (msg->salt) != op->salt_receive)
-        {
-            GNUNET_break_op (0);
-            return GNUNET_SYSERR;
-        }
+    if (msg->ibf_size != op->remote_ibf->size)
+    {
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
     }
-    else if ((op->phase != PHASE_PASSIVE_DECODING) &&
-             (op->phase != PHASE_EXPECT_IBF))
+    if (ntohl (msg->salt) != op->salt_receive)
     {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
     }
+  }
+  else if ((op->phase != PHASE_PASSIVE_DECODING) &&
+           (op->phase != PHASE_EXPECT_IBF))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
 
-    return GNUNET_OK;
+  return GNUNET_OK;
 }
 
 
@@ -2978,90 +2977,90 @@ static void
 handle_union_p2p_ibf (void *cls,
                       const struct IBFMessage *msg)
 {
-    struct Operation *op = cls;
-    unsigned int buckets_in_message;
-    /**
-   * Check that the message is received only in supported phase
-   */
-    uint8_t allowed_phases[] = {PHASE_EXPECT_IBF, PHASE_EXPECT_IBF_LAST,
-                                PHASE_PASSIVE_DECODING};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
-    op->differential_sync_iterations++;
-    check_max_differential_rounds (op);
+  struct Operation *op = cls;
+  unsigned int buckets_in_message;
+  /**
+ * Check that the message is received only in supported phase
+ */
+  uint8_t allowed_phases[] = {PHASE_EXPECT_IBF, PHASE_EXPECT_IBF_LAST,
+                              PHASE_PASSIVE_DECODING};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
+  op->differential_sync_iterations++;
+  check_max_differential_rounds (op);
 
 #if MEASURE_PERFORMANCE
-    perf_store.ibf.received += 1;
+  perf_store.ibf.received += 1;
   perf_store.ibf.received_var_bytes += (ntohs (msg->header.size) - sizeof 
*msg);
 #endif
 
-    buckets_in_message = (ntohs (msg->header.size) - sizeof *msg)
-                         / IBF_BUCKET_SIZE;
-    if ((op->phase == PHASE_PASSIVE_DECODING) ||
-        (op->phase == PHASE_EXPECT_IBF))
+  buckets_in_message = (ntohs (msg->header.size) - sizeof *msg)
+                       / IBF_BUCKET_SIZE;
+  if ((op->phase == PHASE_PASSIVE_DECODING) ||
+      (op->phase == PHASE_EXPECT_IBF))
+  {
+    op->phase = PHASE_EXPECT_IBF_LAST;
+    GNUNET_assert (NULL == op->remote_ibf);
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Creating new ibf of size %u\n",
+         ntohl (msg->ibf_size));
+    // op->remote_ibf = ibf_create (1 << msg->order, SE_IBF_HASH_NUM);
+    op->remote_ibf = ibf_create (msg->ibf_size,
+                                 ((uint8_t) 
op->ibf_number_buckets_per_element));
+    op->salt_receive = ntohl (msg->salt);
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Receiving new IBF with salt %u\n",
+         op->salt_receive);
+    if (NULL == op->remote_ibf)
     {
-        op->phase = PHASE_EXPECT_IBF_LAST;
-        GNUNET_assert (NULL == op->remote_ibf);
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "Creating new ibf of size %u\n",
-             ntohl (msg->ibf_size));
-        // op->remote_ibf = ibf_create (1 << msg->order, SE_IBF_HASH_NUM);
-        op->remote_ibf = ibf_create (msg->ibf_size,
-                                     ((uint8_t) 
op->ibf_number_buckets_per_element));
-        op->salt_receive = ntohl (msg->salt);
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "Receiving new IBF with salt %u\n",
-             op->salt_receive);
-        if (NULL == op->remote_ibf)
-        {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "Failed to parse remote IBF, closing connection\n");
-            fail_union_operation (op);
-            return;
-        }
-        op->ibf_buckets_received = 0;
-        if (0 != ntohl (msg->offset))
-        {
-            GNUNET_break_op (0);
-            fail_union_operation (op);
-            return;
-        }
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to parse remote IBF, closing connection\n");
+      fail_union_operation (op);
+      return;
     }
-    else
+    op->ibf_buckets_received = 0;
+    if (0 != ntohl (msg->offset))
     {
-        GNUNET_assert (op->phase == PHASE_EXPECT_IBF_LAST);
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "Received more of IBF\n");
+      GNUNET_break_op (0);
+      fail_union_operation (op);
+      return;
     }
-    GNUNET_assert (NULL != op->remote_ibf);
+  }
+  else
+  {
+    GNUNET_assert (op->phase == PHASE_EXPECT_IBF_LAST);
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Received more of IBF\n");
+  }
+  GNUNET_assert (NULL != op->remote_ibf);
 
-    ibf_read_slice (&msg[1],
-                    op->ibf_buckets_received,
-                    buckets_in_message,
-                    op->remote_ibf, msg->ibf_counter_bit_length);
-    op->ibf_buckets_received += buckets_in_message;
+  ibf_read_slice (&msg[1],
+                  op->ibf_buckets_received,
+                  buckets_in_message,
+                  op->remote_ibf, msg->ibf_counter_bit_length);
+  op->ibf_buckets_received += buckets_in_message;
 
-    if (op->ibf_buckets_received == op->remote_ibf->size)
+  if (op->ibf_buckets_received == op->remote_ibf->size)
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "received full ibf\n");
+    op->phase = PHASE_ACTIVE_DECODING;
+    if (GNUNET_OK !=
+        decode_and_send (op))
     {
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "received full ibf\n");
-        op->phase = PHASE_ACTIVE_DECODING;
-        if (GNUNET_OK !=
-            decode_and_send (op))
-        {
-            /* Internal error, best we can do is shut down */
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "Failed to decode IBF, closing connection\n");
-            fail_union_operation (op);
-            return;
-        }
+      /* Internal error, best we can do is shut down */
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to decode IBF, closing connection\n");
+      fail_union_operation (op);
+      return;
     }
-    GNUNET_CADET_receive_done (op->channel);
+  }
+  GNUNET_CADET_receive_done (op->channel);
 }
 
 
@@ -3078,32 +3077,32 @@ send_client_element (struct Operation *op,
                      const struct GNUNET_SETU_Element *element,
                      enum GNUNET_SETU_Status status)
 {
-    struct GNUNET_MQ_Envelope *ev;
-    struct GNUNET_SETU_ResultMessage *rm;
-
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "sending element (size %u) to client\n",
-         element->size);
-    GNUNET_assert (0 != op->client_request_id);
-    ev = GNUNET_MQ_msg_extra (rm,
-                              element->size,
-                              GNUNET_MESSAGE_TYPE_SETU_RESULT);
-    if (NULL == ev)
-    {
-        GNUNET_MQ_discard (ev);
-        GNUNET_break (0);
-        return;
-    }
-    rm->result_status = htons (status);
-    rm->request_id = htonl (op->client_request_id);
-    rm->element_type = htons (element->element_type);
-    rm->current_size = GNUNET_htonll (GNUNET_CONTAINER_multihashmap32_size (
-            op->key_to_element));
-    GNUNET_memcpy (&rm[1],
-                   element->data,
-                   element->size);
-    GNUNET_MQ_send (op->set->cs->mq,
-                    ev);
+  struct GNUNET_MQ_Envelope *ev;
+  struct GNUNET_SETU_ResultMessage *rm;
+
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "sending element (size %u) to client\n",
+       element->size);
+  GNUNET_assert (0 != op->client_request_id);
+  ev = GNUNET_MQ_msg_extra (rm,
+                            element->size,
+                            GNUNET_MESSAGE_TYPE_SETU_RESULT);
+  if (NULL == ev)
+  {
+    GNUNET_MQ_discard (ev);
+    GNUNET_break (0);
+    return;
+  }
+  rm->result_status = htons (status);
+  rm->request_id = htonl (op->client_request_id);
+  rm->element_type = htons (element->element_type);
+  rm->current_size = GNUNET_htonll (GNUNET_CONTAINER_multihashmap32_size (
+                                      op->key_to_element));
+  GNUNET_memcpy (&rm[1],
+                 element->data,
+                 element->size);
+  GNUNET_MQ_send (op->set->cs->mq,
+                  ev);
 }
 
 
@@ -3115,47 +3114,47 @@ send_client_element (struct Operation *op,
 static void
 maybe_finish (struct Operation *op)
 {
-    unsigned int num_demanded;
-
-    num_demanded = GNUNET_CONTAINER_multihashmap_size (
-            op->demanded_hashes);
-    int send_done  =  GNUNET_CONTAINER_multihashmap_iterate (
-            op->message_control_flow,
-            &
-                    determinate_done_message_iterator,
-            op);
-    if (PHASE_FINISH_WAITING == op->phase)
+  unsigned int num_demanded;
+
+  num_demanded = GNUNET_CONTAINER_multihashmap_size (
+    op->demanded_hashes);
+  int send_done  =  GNUNET_CONTAINER_multihashmap_iterate (
+    op->message_control_flow,
+    &
+    determinate_done_message_iterator,
+    op);
+  if (PHASE_FINISH_WAITING == op->phase)
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "In PHASE_FINISH_WAITING, pending %u demands -> %d\n",
+         num_demanded, op->peer_site);
+    if (-1 != send_done)
     {
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "In PHASE_FINISH_WAITING, pending %u demands -> %d\n",
-             num_demanded, op->peer_site);
-        if (-1 != send_done)
-        {
-            struct GNUNET_MQ_Envelope *ev;
+      struct GNUNET_MQ_Envelope *ev;
 
-            op->phase = PHASE_FINISHED;
+      op->phase = PHASE_FINISHED;
 #if MEASURE_PERFORMANCE
-            perf_store.done.sent += 1;
+      perf_store.done.sent += 1;
 #endif
-            ev = GNUNET_MQ_msg_header (GNUNET_MESSAGE_TYPE_SETU_P2P_DONE);
-            GNUNET_MQ_send (op->mq,
-                            ev);
-            /* We now wait until the other peer sends P2P_OVER
-             * after it got all elements from us. */
-        }
+      ev = GNUNET_MQ_msg_header (GNUNET_MESSAGE_TYPE_SETU_P2P_DONE);
+      GNUNET_MQ_send (op->mq,
+                      ev);
+      /* We now wait until the other peer sends P2P_OVER
+       * after it got all elements from us. */
     }
-    if (PHASE_FINISH_CLOSING == op->phase)
+  }
+  if (PHASE_FINISH_CLOSING == op->phase)
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "In PHASE_FINISH_CLOSING, pending %u demands %d\n",
+         num_demanded, op->peer_site);
+    if (-1 != send_done)
     {
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "In PHASE_FINISH_CLOSING, pending %u demands %d\n",
-             num_demanded, op->peer_site);
-        if (-1 != send_done)
-        {
-            op->phase = PHASE_FINISHED;
-            send_client_done (op);
-            _GSS_operation_destroy2 (op);
-        }
+      op->phase = PHASE_FINISHED;
+      send_client_done (op);
+      _GSS_operation_destroy2 (op);
     }
+  }
 }
 
 
@@ -3169,14 +3168,14 @@ static int
 check_union_p2p_elements (void *cls,
                           const struct GNUNET_SETU_ElementMessage *emsg)
 {
-    struct Operation *op = cls;
+  struct Operation *op = cls;
 
-    if (0 == GNUNET_CONTAINER_multihashmap_size (op->demanded_hashes))
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    return GNUNET_OK;
+  if (0 == GNUNET_CONTAINER_multihashmap_size (op->demanded_hashes))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
 }
 
 
@@ -3192,118 +3191,118 @@ static void
 handle_union_p2p_elements (void *cls,
                            const struct GNUNET_SETU_ElementMessage *emsg)
 {
-    struct Operation *op = cls;
-    struct ElementEntry *ee;
-    struct KeyEntry *ke;
-    uint16_t element_size;
+  struct Operation *op = cls;
+  struct ElementEntry *ee;
+  struct KeyEntry *ke;
+  uint16_t element_size;
 
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING,
-                                PHASE_FINISH_WAITING, PHASE_FINISH_CLOSING};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING,
+                              PHASE_FINISH_WAITING, PHASE_FINISH_CLOSING};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    element_size = ntohs (emsg->header.size) - sizeof(struct
-            GNUNET_SETU_ElementMessage);
+  element_size = ntohs (emsg->header.size) - sizeof(struct
+                                                    
GNUNET_SETU_ElementMessage);
 #if MEASURE_PERFORMANCE
-    perf_store.element.received += 1;
+  perf_store.element.received += 1;
   perf_store.element.received_var_bytes += element_size;
 #endif
 
-    ee = GNUNET_malloc (sizeof(struct ElementEntry) + element_size);
-    GNUNET_memcpy (&ee[1],
-                   &emsg[1],
-                   element_size);
-    ee->element.size = element_size;
-    ee->element.data = &ee[1];
-    ee->element.element_type = ntohs (emsg->element_type);
-    ee->remote = GNUNET_YES;
-    GNUNET_SETU_element_hash (&ee->element,
-                              &ee->element_hash);
-    if (GNUNET_NO ==
-        GNUNET_CONTAINER_multihashmap_remove (op->demanded_hashes,
-                                              &ee->element_hash,
-                                              NULL))
-    {
-        /* We got something we didn't demand, since it's not in our map. */
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
-
-    if (GNUNET_OK !=
-        update_message_control_flow (
-                op->message_control_flow,
-                MESSAGE_RECEIVED,
-                &ee->element_hash,
-                ELEMENT_MESSAGE)
-            )
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "An element has been received more than once!\n");
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  ee = GNUNET_malloc (sizeof(struct ElementEntry) + element_size);
+  GNUNET_memcpy (&ee[1],
+                 &emsg[1],
+                 element_size);
+  ee->element.size = element_size;
+  ee->element.data = &ee[1];
+  ee->element.element_type = ntohs (emsg->element_type);
+  ee->remote = GNUNET_YES;
+  GNUNET_SETU_element_hash (&ee->element,
+                            &ee->element_hash);
+  if (GNUNET_NO ==
+      GNUNET_CONTAINER_multihashmap_remove (op->demanded_hashes,
+                                            &ee->element_hash,
+                                            NULL))
+  {
+    /* We got something we didn't demand, since it's not in our map. */
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Got element (size %u, hash %s) from peer\n",
-         (unsigned int) element_size,
-         GNUNET_h2s (&ee->element_hash));
+  if (GNUNET_OK !=
+      update_message_control_flow (
+        op->message_control_flow,
+        MESSAGE_RECEIVED,
+        &ee->element_hash,
+        ELEMENT_MESSAGE)
+      )
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "An element has been received more than once!\n");
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Got element (size %u, hash %s) from peer\n",
+       (unsigned int) element_size,
+       GNUNET_h2s (&ee->element_hash));
+
+  GNUNET_STATISTICS_update (_GSS_statistics,
+                            "# received elements",
+                            1,
+                            GNUNET_NO);
+  GNUNET_STATISTICS_update (_GSS_statistics,
+                            "# exchanged elements",
+                            1,
+                            GNUNET_NO);
+
+  op->received_total++;
+
+  ke = op_get_element (op,
+                       &ee->element_hash);
+  if (NULL != ke)
+  {
+    /* Got repeated element.  Should not happen since
+     * we track demands. */
     GNUNET_STATISTICS_update (_GSS_statistics,
-                              "# received elements",
-                              1,
-                              GNUNET_NO);
-    GNUNET_STATISTICS_update (_GSS_statistics,
-                              "# exchanged elements",
+                              "# repeated elements",
                               1,
                               GNUNET_NO);
+    ke->received = GNUNET_YES;
+    GNUNET_free (ee);
+  }
+  else
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Registering new element from remote peer\n");
+    op->received_fresh++;
+    op_register_element (op, ee, GNUNET_YES);
+    /* only send results immediately if the client wants it */
+    send_client_element (op,
+                         &ee->element,
+                         GNUNET_SETU_STATUS_ADD_LOCAL);
+  }
 
-    op->received_total++;
-
-    ke = op_get_element (op,
-                         &ee->element_hash);
-    if (NULL != ke)
-    {
-        /* Got repeated element.  Should not happen since
-         * we track demands. */
-        GNUNET_STATISTICS_update (_GSS_statistics,
-                                  "# repeated elements",
-                                  1,
-                                  GNUNET_NO);
-        ke->received = GNUNET_YES;
-        GNUNET_free (ee);
-    }
-    else
-    {
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "Registering new element from remote peer\n");
-        op->received_fresh++;
-        op_register_element (op, ee, GNUNET_YES);
-        /* only send results immediately if the client wants it */
-        send_client_element (op,
-                             &ee->element,
-                             GNUNET_SETU_STATUS_ADD_LOCAL);
-    }
-
-    if ((op->received_total > 8) &&
-        (op->received_fresh < op->received_total / 3))
-    {
-        /* The other peer gave us lots of old elements, there's something 
wrong. */
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
-    GNUNET_CADET_receive_done (op->channel);
-    maybe_finish (op);
+  if ((op->received_total > 8) &&
+      (op->received_fresh < op->received_total / 3))
+  {
+    /* The other peer gave us lots of old elements, there's something wrong. */
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
+  GNUNET_CADET_receive_done (op->channel);
+  maybe_finish (op);
 }
 
 
@@ -3317,12 +3316,12 @@ static int
 check_union_p2p_full_element (void *cls,
                               const struct GNUNET_SETU_ElementMessage *emsg)
 {
-    struct Operation *op = cls;
+  struct Operation *op = cls;
 
-    (void) op;
+  (void) op;
 
-    // FIXME: check that we expect full elements here?
-    return GNUNET_OK;
+  // FIXME: check that we expect full elements here?
+  return GNUNET_OK;
 }
 
 
@@ -3336,92 +3335,92 @@ static void
 handle_union_p2p_full_element (void *cls,
                                const struct GNUNET_SETU_ElementMessage *emsg)
 {
-    struct Operation *op = cls;
-    struct ElementEntry *ee;
-    struct KeyEntry *ke;
-    uint16_t element_size;
+  struct Operation *op = cls;
+  struct ElementEntry *ee;
+  struct KeyEntry *ke;
+  uint16_t element_size;
 
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_FULL_RECEIVING, PHASE_FULL_SENDING};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_FULL_RECEIVING, PHASE_FULL_SENDING};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    element_size = ntohs (emsg->header.size)
-                   - sizeof(struct GNUNET_SETU_ElementMessage);
+  element_size = ntohs (emsg->header.size)
+                 - sizeof(struct GNUNET_SETU_ElementMessage);
 
 #if MEASURE_PERFORMANCE
-    perf_store.element_full.received += 1;
+  perf_store.element_full.received += 1;
   perf_store.element_full.received_var_bytes += element_size;
-#endif
-
-    ee = GNUNET_malloc (sizeof(struct ElementEntry) + element_size);
-    GNUNET_memcpy (&ee[1], &emsg[1], element_size);
-    ee->element.size = element_size;
-    ee->element.data = &ee[1];
-    ee->element.element_type = ntohs (emsg->element_type);
-    ee->remote = GNUNET_YES;
-    GNUNET_SETU_element_hash (&ee->element,
-                              &ee->element_hash);
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Got element (full diff, size %u, hash %s) from peer\n",
-         (unsigned int) element_size,
-         GNUNET_h2s (&ee->element_hash));
+#endif
 
+  ee = GNUNET_malloc (sizeof(struct ElementEntry) + element_size);
+  GNUNET_memcpy (&ee[1], &emsg[1], element_size);
+  ee->element.size = element_size;
+  ee->element.data = &ee[1];
+  ee->element.element_type = ntohs (emsg->element_type);
+  ee->remote = GNUNET_YES;
+  GNUNET_SETU_element_hash (&ee->element,
+                            &ee->element_hash);
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Got element (full diff, size %u, hash %s) from peer\n",
+       (unsigned int) element_size,
+       GNUNET_h2s (&ee->element_hash));
+
+  GNUNET_STATISTICS_update (_GSS_statistics,
+                            "# received elements",
+                            1,
+                            GNUNET_NO);
+  GNUNET_STATISTICS_update (_GSS_statistics,
+                            "# exchanged elements",
+                            1,
+                            GNUNET_NO);
+
+  op->received_total++;
+  ke = op_get_element (op,
+                       &ee->element_hash);
+  if (NULL != ke)
+  {
     GNUNET_STATISTICS_update (_GSS_statistics,
-                              "# received elements",
-                              1,
-                              GNUNET_NO);
-    GNUNET_STATISTICS_update (_GSS_statistics,
-                              "# exchanged elements",
+                              "# repeated elements",
                               1,
                               GNUNET_NO);
-
-    op->received_total++;
-    ke = op_get_element (op,
-                         &ee->element_hash);
-    if (NULL != ke)
-    {
-        GNUNET_STATISTICS_update (_GSS_statistics,
-                                  "# repeated elements",
-                                  1,
-                                  GNUNET_NO);
-        full_sync_plausibility_check (op);
-        ke->received = GNUNET_YES;
-        GNUNET_free (ee);
-    }
-    else
-    {
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "Registering new element from remote peer\n");
-        op->received_fresh++;
-        op_register_element (op, ee, GNUNET_YES);
-        /* only send results immediately if the client wants it */
-        send_client_element (op,
-                             &ee->element,
-                             GNUNET_SETU_STATUS_ADD_LOCAL);
-    }
+    full_sync_plausibility_check (op);
+    ke->received = GNUNET_YES;
+    GNUNET_free (ee);
+  }
+  else
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Registering new element from remote peer\n");
+    op->received_fresh++;
+    op_register_element (op, ee, GNUNET_YES);
+    /* only send results immediately if the client wants it */
+    send_client_element (op,
+                         &ee->element,
+                         GNUNET_SETU_STATUS_ADD_LOCAL);
+  }
 
 
-    if ((GNUNET_YES == op->byzantine) &&
-        (op->received_total > op->remote_element_count) )
-    {
-        /* The other peer gave us lots of old elements, there's something 
wrong. */
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "Other peer sent %llu elements while pretending to have %llu 
elements, failing operation\n",
-             (unsigned long long) op->received_total,
-             (unsigned long long) op->remote_element_count);
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
-    GNUNET_CADET_receive_done (op->channel);
+  if ((GNUNET_YES == op->byzantine) &&
+      (op->received_total > op->remote_element_count) )
+  {
+    /* The other peer gave us lots of old elements, there's something wrong. */
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "Other peer sent %llu elements while pretending to have %llu 
elements, failing operation\n",
+         (unsigned long long) op->received_total,
+         (unsigned long long) op->remote_element_count);
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
+  GNUNET_CADET_receive_done (op->channel);
 }
 
 
@@ -3436,23 +3435,23 @@ static int
 check_union_p2p_inquiry (void *cls,
                          const struct InquiryMessage *msg)
 {
-    struct Operation *op = cls;
-    unsigned int num_keys;
+  struct Operation *op = cls;
+  unsigned int num_keys;
 
-    if (op->phase != PHASE_PASSIVE_DECODING)
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    num_keys = (ntohs (msg->header.size) - sizeof(struct InquiryMessage))
-               / sizeof(struct IBF_Key);
-    if ((ntohs (msg->header.size) - sizeof(struct InquiryMessage))
-        != num_keys * sizeof(struct IBF_Key))
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    return GNUNET_OK;
+  if (op->phase != PHASE_PASSIVE_DECODING)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  num_keys = (ntohs (msg->header.size) - sizeof(struct InquiryMessage))
+             / sizeof(struct IBF_Key);
+  if ((ntohs (msg->header.size) - sizeof(struct InquiryMessage))
+      != num_keys * sizeof(struct IBF_Key))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
 }
 
 
@@ -3466,62 +3465,62 @@ static void
 handle_union_p2p_inquiry (void *cls,
                           const struct InquiryMessage *msg)
 {
-    struct Operation *op = cls;
-    const struct IBF_Key *ibf_key;
-    unsigned int num_keys;
+  struct Operation *op = cls;
+  const struct IBF_Key *ibf_key;
+  unsigned int num_keys;
 
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
 #if MEASURE_PERFORMANCE
-        perf_store.inquery.received += 1;
+  perf_store.inquery.received += 1;
   perf_store.inquery.received_var_bytes += (ntohs (msg->header.size)
                                             - sizeof(struct InquiryMessage));
 #endif
 
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Received union inquiry\n");
-    num_keys = (ntohs (msg->header.size) - sizeof(struct InquiryMessage))
-               / sizeof(struct IBF_Key);
-    ibf_key = (const struct IBF_Key *) &msg[1];
-
-    /** Add received inquiries to hashmap for flow control **/
-    struct GNUNET_HashContext *hashed_key_context =
-            GNUNET_CRYPTO_hash_context_start ();
-    struct GNUNET_HashCode *hashed_key = (struct GNUNET_HashCode*) 
GNUNET_malloc (
-            sizeof(struct GNUNET_HashCode));;
-    enum MESSAGE_CONTROL_FLOW_STATE mcfs = MESSAGE_RECEIVED;
-    GNUNET_CRYPTO_hash_context_read (hashed_key_context,
-                                     &ibf_key,
-                                     sizeof(struct IBF_Key));
-    GNUNET_CRYPTO_hash_context_finish (hashed_key_context,
-                                       hashed_key);
-    GNUNET_CONTAINER_multihashmap_put (op->inquiries_sent,
-                                       hashed_key,
-                                       &mcfs,
-                                       
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE
-    );
-
-    while (0 != num_keys--)
-    {
-        struct IBF_Key unsalted_key;
-        unsalt_key (ibf_key,
-                    ntohl (msg->salt),
-                    &unsalted_key);
-        send_offers_for_key (op,
-                             unsalted_key);
-        ibf_key++;
-    }
-    GNUNET_CADET_receive_done (op->channel);
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Received union inquiry\n");
+  num_keys = (ntohs (msg->header.size) - sizeof(struct InquiryMessage))
+             / sizeof(struct IBF_Key);
+  ibf_key = (const struct IBF_Key *) &msg[1];
+
+  /** Add received inquiries to hashmap for flow control **/
+  struct GNUNET_HashContext *hashed_key_context =
+    GNUNET_CRYPTO_hash_context_start ();
+  struct GNUNET_HashCode *hashed_key = (struct GNUNET_HashCode*) GNUNET_malloc 
(
+    sizeof(struct GNUNET_HashCode));;
+  enum MESSAGE_CONTROL_FLOW_STATE mcfs = MESSAGE_RECEIVED;
+  GNUNET_CRYPTO_hash_context_read (hashed_key_context,
+                                   &ibf_key,
+                                   sizeof(struct IBF_Key));
+  GNUNET_CRYPTO_hash_context_finish (hashed_key_context,
+                                     hashed_key);
+  GNUNET_CONTAINER_multihashmap_put (op->inquiries_sent,
+                                     hashed_key,
+                                     &mcfs,
+                                     
GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE
+                                     );
+
+  while (0 != num_keys--)
+  {
+    struct IBF_Key unsalted_key;
+    unsalt_key (ibf_key,
+                ntohl (msg->salt),
+                &unsalted_key);
+    send_offers_for_key (op,
+                         unsalted_key);
+    ibf_key++;
+  }
+  GNUNET_CADET_receive_done (op->channel);
 }
 
 
@@ -3540,27 +3539,27 @@ send_missing_full_elements_iter (void *cls,
                                  uint32_t key,
                                  void *value)
 {
-    struct Operation *op = cls;
-    struct KeyEntry *ke = value;
-    struct GNUNET_MQ_Envelope *ev;
-    struct GNUNET_SETU_ElementMessage *emsg;
-    struct ElementEntry *ee = ke->element;
+  struct Operation *op = cls;
+  struct KeyEntry *ke = value;
+  struct GNUNET_MQ_Envelope *ev;
+  struct GNUNET_SETU_ElementMessage *emsg;
+  struct ElementEntry *ee = ke->element;
 
-    if (GNUNET_YES == ke->received)
-        return GNUNET_YES;
+  if (GNUNET_YES == ke->received)
+    return GNUNET_YES;
 #if MEASURE_PERFORMANCE
-    perf_store.element_full.received += 1;
+  perf_store.element_full.received += 1;
 #endif
-    ev = GNUNET_MQ_msg_extra (emsg,
-                              ee->element.size,
-                              GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_ELEMENT);
-    GNUNET_memcpy (&emsg[1],
-                   ee->element.data,
-                   ee->element.size);
-    emsg->element_type = htons (ee->element.element_type);
-    GNUNET_MQ_send (op->mq,
-                    ev);
-    return GNUNET_YES;
+  ev = GNUNET_MQ_msg_extra (emsg,
+                            ee->element.size,
+                            GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_ELEMENT);
+  GNUNET_memcpy (&emsg[1],
+                 ee->element.data,
+                 ee->element.size);
+  emsg->element_type = htons (ee->element.element_type);
+  GNUNET_MQ_send (op->mq,
+                  ev);
+  return GNUNET_YES;
 }
 
 
@@ -3574,7 +3573,7 @@ static int
 check_union_p2p_request_full (void *cls,
                               const struct TransmitFullMessage *mh)
 {
-    return GNUNET_OK;
+  return GNUNET_OK;
 }
 
 
@@ -3582,80 +3581,80 @@ static void
 handle_union_p2p_request_full (void *cls,
                                const struct TransmitFullMessage *msg)
 {
-    struct Operation *op = cls;
+  struct Operation *op = cls;
 
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_EXPECT_IBF};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_EXPECT_IBF};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    op->remote_element_count = ntohl (msg->remote_set_size);
-    op->remote_set_diff = ntohl (msg->remote_set_difference);
-    op->local_set_diff = ntohl (msg->local_set_difference);
+  op->remote_element_count = ntohl (msg->remote_set_size);
+  op->remote_set_diff = ntohl (msg->remote_set_difference);
+  op->local_set_diff = ntohl (msg->local_set_difference);
 
 
-    if (check_byzantine_bounds (op) != GNUNET_OK)
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "PROTOCOL VIOLATION: Parameters transmitted from other peer do 
not satisfie byzantine "
-             "criteria\n");
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
+  if (check_byzantine_bounds (op) != GNUNET_OK)
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "PROTOCOL VIOLATION: Parameters transmitted from other peer do not 
satisfie byzantine "
+         "criteria\n");
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
 
 #if MEASURE_PERFORMANCE
-        perf_store.request_full.received += 1;
+  perf_store.request_full.received += 1;
 #endif
 
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Received request for full set transmission\n");
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Received request for full set transmission\n");
 
-    /** Calculate avg element size if not initial sync **/
-    op->local_element_count = GNUNET_CONTAINER_multihashmap_size (
-            op->set->content->elements);
-    uint64_t avg_element_size = 0;
-    if (0 < op->local_element_count)
-    {
-        GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
-                                               &
-                                                       
determinate_avg_element_size_iterator,
-                                               op);
-        avg_element_size = op->total_elements_size_local / 
op->local_element_count;
-    }
+  /** Calculate avg element size if not initial sync **/
+  op->local_element_count = GNUNET_CONTAINER_multihashmap_size (
+    op->set->content->elements);
+  uint64_t avg_element_size = 0;
+  if (0 < op->local_element_count)
+  {
+    GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
+                                           &
+                                           
determinate_avg_element_size_iterator,
+                                           op);
+    avg_element_size = op->total_elements_size_local / op->local_element_count;
+  }
 
-    int mode_of_operation = estimate_best_mode_of_operation (avg_element_size,
-                                                             op->
-                                                                     
remote_element_count,
-                                                             op->
-                                                                     
local_element_count,
-                                                             
op->remote_set_diff,
-                                                             
op->local_set_diff,
-                                                             op->
-                                                                     
rtt_bandwidth_tradeoff,
-                                                             op->
-                                                                     
ibf_bucket_number_factor);
-    if (FULL_SYNC_REMOTE_SENDING_FIRST != mode_of_operation)
-    {
-        LOG (GNUNET_ERROR_TYPE_ERROR,
-             "PROTOCOL VIOLATION: Remote peer choose to request the full set 
first but correct mode would have been"
-             " : %d\n", mode_of_operation);
-        GNUNET_break_op (0);
-        fail_union_operation (op);
-        return;
-    }
+  int mode_of_operation = estimate_best_mode_of_operation (avg_element_size,
+                                                           op->
+                                                           
remote_element_count,
+                                                           op->
+                                                           local_element_count,
+                                                           op->remote_set_diff,
+                                                           op->local_set_diff,
+                                                           op->
+                                                           
rtt_bandwidth_tradeoff,
+                                                           op->
+                                                           
ibf_bucket_number_factor);
+  if (FULL_SYNC_REMOTE_SENDING_FIRST != mode_of_operation)
+  {
+    LOG (GNUNET_ERROR_TYPE_ERROR,
+         "PROTOCOL VIOLATION: Remote peer choose to request the full set first 
but correct mode would have been"
+         " : %d\n", mode_of_operation);
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
 
-    // FIXME: we need to check that our set is larger than the
-    // byzantine_lower_bound by some threshold
-    send_full_set (op);
-    GNUNET_CADET_receive_done (op->channel);
+  // FIXME: we need to check that our set is larger than the
+  // byzantine_lower_bound by some threshold
+  send_full_set (op);
+  GNUNET_CADET_receive_done (op->channel);
 }
 
 
@@ -3669,82 +3668,82 @@ static void
 handle_union_p2p_full_done (void *cls,
                             const struct GNUNET_MessageHeader *mh)
 {
-    struct Operation *op = cls;
+  struct Operation *op = cls;
 
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_FULL_SENDING, PHASE_FULL_RECEIVING};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_FULL_SENDING, PHASE_FULL_RECEIVING};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
 #if MEASURE_PERFORMANCE
-    perf_store.full_done.received += 1;
+  perf_store.full_done.received += 1;
 #endif
 
-    switch (op->phase)
+  switch (op->phase)
+  {
+  case PHASE_FULL_RECEIVING:
     {
-        case PHASE_FULL_RECEIVING:
-        {
-            struct GNUNET_MQ_Envelope *ev;
-
-            if ((GNUNET_YES == op->byzantine) &&
-                (op->received_total != op->remote_element_count) )
-            {
-                /* The other peer gave not enough elements before sending full 
done, there's something wrong. */
-                LOG (GNUNET_ERROR_TYPE_ERROR,
-                     "Other peer sent only %llu/%llu fresh elements, failing 
operation\n",
-                     (unsigned long long) op->received_total,
-                     (unsigned long long) op->remote_element_count);
-                GNUNET_break_op (0);
-                fail_union_operation (op);
-                return;
-            }
-
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "got FULL DONE, sending elements that other peer is 
missing\n");
-
-            /* send all the elements that did not come from the remote peer */
-            GNUNET_CONTAINER_multihashmap32_iterate (op->key_to_element,
-                                                     
&send_missing_full_elements_iter,
-                                                     op);
-#if MEASURE_PERFORMANCE
-            perf_store.full_done.sent += 1;
-#endif
-            ev = GNUNET_MQ_msg_header (GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_DONE);
-            GNUNET_MQ_send (op->mq,
-                            ev);
-            op->phase = PHASE_FINISHED;
-            /* we now wait until the other peer sends us the OVER message*/
-        }
-            break;
+      struct GNUNET_MQ_Envelope *ev;
 
-        case PHASE_FULL_SENDING:
-        {
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "got FULL DONE, finishing\n");
-            /* We sent the full set, and got the response for that.  We're 
done. */
-            op->phase = PHASE_FINISHED;
-            GNUNET_CADET_receive_done (op->channel);
-            send_client_done (op);
-            _GSS_operation_destroy2 (op);
-            return;
-        }
+      if ((GNUNET_YES == op->byzantine) &&
+          (op->received_total != op->remote_element_count) )
+      {
+        /* The other peer gave not enough elements before sending full done, 
there's something wrong. */
+        LOG (GNUNET_ERROR_TYPE_ERROR,
+             "Other peer sent only %llu/%llu fresh elements, failing 
operation\n",
+             (unsigned long long) op->received_total,
+             (unsigned long long) op->remote_element_count);
+        GNUNET_break_op (0);
+        fail_union_operation (op);
+        return;
+      }
 
-        default:
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "Handle full done phase is %u\n",
-                        (unsigned) op->phase);
-            GNUNET_break_op (0);
-            fail_union_operation (op);
-            return;
-    }
-    GNUNET_CADET_receive_done (op->channel);
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "got FULL DONE, sending elements that other peer is missing\n");
+
+      /* send all the elements that did not come from the remote peer */
+      GNUNET_CONTAINER_multihashmap32_iterate (op->key_to_element,
+                                               
&send_missing_full_elements_iter,
+                                               op);
+#if MEASURE_PERFORMANCE
+      perf_store.full_done.sent += 1;
+#endif
+      ev = GNUNET_MQ_msg_header (GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_DONE);
+      GNUNET_MQ_send (op->mq,
+                      ev);
+      op->phase = PHASE_FINISHED;
+      /* we now wait until the other peer sends us the OVER message*/
+    }
+    break;
+
+  case PHASE_FULL_SENDING:
+    {
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "got FULL DONE, finishing\n");
+      /* We sent the full set, and got the response for that.  We're done. */
+      op->phase = PHASE_FINISHED;
+      GNUNET_CADET_receive_done (op->channel);
+      send_client_done (op);
+      _GSS_operation_destroy2 (op);
+      return;
+    }
+
+  default:
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Handle full done phase is %u\n",
+                (unsigned) op->phase);
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
+  GNUNET_CADET_receive_done (op->channel);
 }
 
 
@@ -3760,19 +3759,19 @@ static int
 check_union_p2p_demand (void *cls,
                         const struct GNUNET_MessageHeader *mh)
 {
-    struct Operation *op = cls;
-    unsigned int num_hashes;
-
-    (void) op;
-    num_hashes = (ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
-                 / sizeof(struct GNUNET_HashCode);
-    if ((ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
-        != num_hashes * sizeof(struct GNUNET_HashCode))
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    return GNUNET_OK;
+  struct Operation *op = cls;
+  unsigned int num_hashes;
+
+  (void) op;
+  num_hashes = (ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
+               / sizeof(struct GNUNET_HashCode);
+  if ((ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
+      != num_hashes * sizeof(struct GNUNET_HashCode))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
 }
 
 
@@ -3787,116 +3786,116 @@ static void
 handle_union_p2p_demand (void *cls,
                          const struct GNUNET_MessageHeader *mh)
 {
-    struct Operation *op = cls;
-    struct ElementEntry *ee;
-    struct GNUNET_SETU_ElementMessage *emsg;
-    const struct GNUNET_HashCode *hash;
-    unsigned int num_hashes;
-    struct GNUNET_MQ_Envelope *ev;
+  struct Operation *op = cls;
+  struct ElementEntry *ee;
+  struct GNUNET_SETU_ElementMessage *emsg;
+  const struct GNUNET_HashCode *hash;
+  unsigned int num_hashes;
+  struct GNUNET_MQ_Envelope *ev;
 
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING,
-                                PHASE_FINISH_WAITING};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING,
+                              PHASE_FINISH_WAITING};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 #if MEASURE_PERFORMANCE
-    perf_store.demand.received += 1;
+  perf_store.demand.received += 1;
   perf_store.demand.received_var_bytes += (ntohs (mh->size) - sizeof(struct
                                                                      
GNUNET_MessageHeader));
 #endif
 
-    num_hashes = (ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
-                 / sizeof(struct GNUNET_HashCode);
-    for (hash = (const struct GNUNET_HashCode *) &mh[1];
-         num_hashes > 0;
-         hash++, num_hashes--)
-    {
-        ee = GNUNET_CONTAINER_multihashmap_get (op->set->content->elements,
-                                                hash);
-
-        /* Save send demand message for message control */
-        if (GNUNET_YES !=
-            update_message_control_flow (
-                    op->message_control_flow,
-                    MESSAGE_RECEIVED,
-                    &ee->element_hash,
-                    DEMAND_MESSAGE)
-                )
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "Double demand message received found!\n");
-            GNUNET_break (0);
-            fail_union_operation (op);
-            return;
-        }
-        ;
+  num_hashes = (ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
+               / sizeof(struct GNUNET_HashCode);
+  for (hash = (const struct GNUNET_HashCode *) &mh[1];
+       num_hashes > 0;
+       hash++, num_hashes--)
+  {
+    ee = GNUNET_CONTAINER_multihashmap_get (op->set->content->elements,
+                                            hash);
 
-        /* Mark element to be expected to received */
-        if (GNUNET_YES !=
-            update_message_control_flow (
-                    op->message_control_flow,
-                    MESSAGE_SENT,
-                    &ee->element_hash,
-                    ELEMENT_MESSAGE)
-                )
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "Double element message sent found!\n");
-            GNUNET_break (0);
-            fail_union_operation (op);
-            return;
-        }
-        ;
-        if (NULL == ee)
-        {
-            /* Demand for non-existing element. */
-            GNUNET_break_op (0);
-            fail_union_operation (op);
-            return;
-        }
-        if (GNUNET_NO == _GSS_is_element_of_operation (ee, op))
-        {
-            /* Probably confused lazily copied sets. */
-            GNUNET_break_op (0);
-            fail_union_operation (op);
-            return;
-        }
+    /* Save send demand message for message control */
+    if (GNUNET_YES !=
+        update_message_control_flow (
+          op->message_control_flow,
+          MESSAGE_RECEIVED,
+          &ee->element_hash,
+          DEMAND_MESSAGE)
+        )
+    {
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "Double demand message received found!\n");
+      GNUNET_break (0);
+      fail_union_operation (op);
+      return;
+    }
+    ;
+
+    /* Mark element to be expected to received */
+    if (GNUNET_YES !=
+        update_message_control_flow (
+          op->message_control_flow,
+          MESSAGE_SENT,
+          &ee->element_hash,
+          ELEMENT_MESSAGE)
+        )
+    {
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "Double element message sent found!\n");
+      GNUNET_break (0);
+      fail_union_operation (op);
+      return;
+    }
+    ;
+    if (NULL == ee)
+    {
+      /* Demand for non-existing element. */
+      GNUNET_break_op (0);
+      fail_union_operation (op);
+      return;
+    }
+    if (GNUNET_NO == _GSS_is_element_of_operation (ee, op))
+    {
+      /* Probably confused lazily copied sets. */
+      GNUNET_break_op (0);
+      fail_union_operation (op);
+      return;
+    }
 #if MEASURE_PERFORMANCE
-        perf_store.element.sent += 1;
+    perf_store.element.sent += 1;
     perf_store.element.sent_var_bytes += ee->element.size;
 #endif
-        ev = GNUNET_MQ_msg_extra (emsg,
-                                  ee->element.size,
-                                  GNUNET_MESSAGE_TYPE_SETU_P2P_ELEMENTS);
-        GNUNET_memcpy (&emsg[1],
-                       ee->element.data,
-                       ee->element.size);
-        emsg->reserved = htons (0);
-        emsg->element_type = htons (ee->element.element_type);
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "[OP %p] Sending demanded element (size %u, hash %s) to peer\n",
-             op,
-             (unsigned int) ee->element.size,
-             GNUNET_h2s (&ee->element_hash));
-        GNUNET_MQ_send (op->mq, ev);
-        GNUNET_STATISTICS_update (_GSS_statistics,
-                                  "# exchanged elements",
-                                  1,
-                                  GNUNET_NO);
-        if (op->symmetric)
-            send_client_element (op,
-                                 &ee->element,
-                                 GNUNET_SETU_STATUS_ADD_REMOTE);
-    }
-    GNUNET_CADET_receive_done (op->channel);
-    maybe_finish (op);
+    ev = GNUNET_MQ_msg_extra (emsg,
+                              ee->element.size,
+                              GNUNET_MESSAGE_TYPE_SETU_P2P_ELEMENTS);
+    GNUNET_memcpy (&emsg[1],
+                   ee->element.data,
+                   ee->element.size);
+    emsg->reserved = htons (0);
+    emsg->element_type = htons (ee->element.element_type);
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "[OP %p] Sending demanded element (size %u, hash %s) to peer\n",
+         op,
+         (unsigned int) ee->element.size,
+         GNUNET_h2s (&ee->element_hash));
+    GNUNET_MQ_send (op->mq, ev);
+    GNUNET_STATISTICS_update (_GSS_statistics,
+                              "# exchanged elements",
+                              1,
+                              GNUNET_NO);
+    if (op->symmetric)
+      send_client_element (op,
+                           &ee->element,
+                           GNUNET_SETU_STATUS_ADD_REMOTE);
+  }
+  GNUNET_CADET_receive_done (op->channel);
+  maybe_finish (op);
 }
 
 
@@ -3911,25 +3910,25 @@ static int
 check_union_p2p_offer (void *cls,
                        const struct GNUNET_MessageHeader *mh)
 {
-    struct Operation *op = cls;
-    unsigned int num_hashes;
+  struct Operation *op = cls;
+  unsigned int num_hashes;
 
-    /* look up elements and send them */
-    if ((op->phase != PHASE_PASSIVE_DECODING) &&
-        (op->phase != PHASE_ACTIVE_DECODING))
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    num_hashes = (ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
-                 / sizeof(struct GNUNET_HashCode);
-    if ((ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader)) !=
-        num_hashes * sizeof(struct GNUNET_HashCode))
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    return GNUNET_OK;
+  /* look up elements and send them */
+  if ((op->phase != PHASE_PASSIVE_DECODING) &&
+      (op->phase != PHASE_ACTIVE_DECODING))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  num_hashes = (ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
+               / sizeof(struct GNUNET_HashCode);
+  if ((ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader)) !=
+      num_hashes * sizeof(struct GNUNET_HashCode))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
 }
 
 
@@ -3944,128 +3943,128 @@ static void
 handle_union_p2p_offer (void *cls,
                         const struct GNUNET_MessageHeader *mh)
 {
-    struct Operation *op = cls;
-    const struct GNUNET_HashCode *hash;
-    unsigned int num_hashes;
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  struct Operation *op = cls;
+  const struct GNUNET_HashCode *hash;
+  unsigned int num_hashes;
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
 #if MEASURE_PERFORMANCE
-    perf_store.offer.received += 1;
+  perf_store.offer.received += 1;
   perf_store.offer.received_var_bytes += (ntohs (mh->size) - sizeof(struct
                                                                     
GNUNET_MessageHeader));
 #endif
 
-    num_hashes = (ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
-                 / sizeof(struct GNUNET_HashCode);
-    for (hash = (const struct GNUNET_HashCode *) &mh[1];
-         num_hashes > 0;
-         hash++, num_hashes--)
+  num_hashes = (ntohs (mh->size) - sizeof(struct GNUNET_MessageHeader))
+               / sizeof(struct GNUNET_HashCode);
+  for (hash = (const struct GNUNET_HashCode *) &mh[1];
+       num_hashes > 0;
+       hash++, num_hashes--)
+  {
+    struct ElementEntry *ee;
+    struct GNUNET_MessageHeader *demands;
+    struct GNUNET_MQ_Envelope *ev;
+
+    ee = GNUNET_CONTAINER_multihashmap_get (op->set->content->elements,
+                                            hash);
+    if (NULL != ee)
+      if (GNUNET_YES == _GSS_is_element_of_operation (ee, op))
+        continue;
+
+    if (GNUNET_YES ==
+        GNUNET_CONTAINER_multihashmap_contains (op->demanded_hashes,
+                                                hash))
     {
-        struct ElementEntry *ee;
-        struct GNUNET_MessageHeader *demands;
-        struct GNUNET_MQ_Envelope *ev;
-
-        ee = GNUNET_CONTAINER_multihashmap_get (op->set->content->elements,
-                                                hash);
-        if (NULL != ee)
-            if (GNUNET_YES == _GSS_is_element_of_operation (ee, op))
-                continue;
-
-        if (GNUNET_YES ==
-            GNUNET_CONTAINER_multihashmap_contains (op->demanded_hashes,
-                                                    hash))
-        {
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "Skipped sending duplicate demand\n");
-            continue;
-        }
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "Skipped sending duplicate demand\n");
+      continue;
+    }
 
-        GNUNET_assert (GNUNET_OK ==
-                       GNUNET_CONTAINER_multihashmap_put (
-                               op->demanded_hashes,
-                               hash,
-                               NULL,
-                               
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
+    GNUNET_assert (GNUNET_OK ==
+                   GNUNET_CONTAINER_multihashmap_put (
+                     op->demanded_hashes,
+                     hash,
+                     NULL,
+                     GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
 
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "[OP %p] Requesting element (hash %s)\n",
-             op, GNUNET_h2s (hash));
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "[OP %p] Requesting element (hash %s)\n",
+         op, GNUNET_h2s (hash));
 
 #if MEASURE_PERFORMANCE
-        perf_store.demand.sent += 1;
+    perf_store.demand.sent += 1;
     perf_store.demand.sent_var_bytes += sizeof(struct GNUNET_HashCode);
 #endif
-        ev = GNUNET_MQ_msg_header_extra (demands,
-                                         sizeof(struct GNUNET_HashCode),
-                                         GNUNET_MESSAGE_TYPE_SETU_P2P_DEMAND);
-        /* Save send demand message for message control */
-        if (GNUNET_YES !=
-            update_message_control_flow (
-                    op->message_control_flow,
-                    MESSAGE_SENT,
-                    hash,
-                    DEMAND_MESSAGE)
-                )
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "Double demand message sent found!\n");
-            GNUNET_break (0);
-            fail_union_operation (op);
-            return;
-        }
-        ;
-
-        /* Mark offer as received received */
-        if (GNUNET_YES !=
-            update_message_control_flow (
-                    op->message_control_flow,
-                    MESSAGE_RECEIVED,
-                    hash,
-                    OFFER_MESSAGE)
-                )
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "Double offer message received found!\n");
-            GNUNET_break (0);
-            fail_union_operation (op);
-            return;
-        }
-        ;
-
-        /* Mark element to be expected to received */
-        if (GNUNET_YES !=
-            update_message_control_flow (
-                    op->message_control_flow,
-                    MESSAGE_EXPECTED,
-                    hash,
-                    ELEMENT_MESSAGE)
-                )
-        {
-            LOG (GNUNET_ERROR_TYPE_ERROR,
-                 "Element already expected!\n");
-            GNUNET_break (0);
-            fail_union_operation (op);
-            return;
-        }
-        ;
+    ev = GNUNET_MQ_msg_header_extra (demands,
+                                     sizeof(struct GNUNET_HashCode),
+                                     GNUNET_MESSAGE_TYPE_SETU_P2P_DEMAND);
+    /* Save send demand message for message control */
+    if (GNUNET_YES !=
+        update_message_control_flow (
+          op->message_control_flow,
+          MESSAGE_SENT,
+          hash,
+          DEMAND_MESSAGE)
+        )
+    {
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "Double demand message sent found!\n");
+      GNUNET_break (0);
+      fail_union_operation (op);
+      return;
+    }
+    ;
+
+    /* Mark offer as received received */
+    if (GNUNET_YES !=
+        update_message_control_flow (
+          op->message_control_flow,
+          MESSAGE_RECEIVED,
+          hash,
+          OFFER_MESSAGE)
+        )
+    {
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "Double offer message received found!\n");
+      GNUNET_break (0);
+      fail_union_operation (op);
+      return;
+    }
+    ;
+
+    /* Mark element to be expected to received */
+    if (GNUNET_YES !=
+        update_message_control_flow (
+          op->message_control_flow,
+          MESSAGE_EXPECTED,
+          hash,
+          ELEMENT_MESSAGE)
+        )
+    {
+      LOG (GNUNET_ERROR_TYPE_ERROR,
+           "Element already expected!\n");
+      GNUNET_break (0);
+      fail_union_operation (op);
+      return;
+    }
+    ;
 
 
-        GNUNET_memcpy (&demands[1],
-                       hash,
-                       sizeof(struct GNUNET_HashCode));
-        GNUNET_MQ_send (op->mq, ev);
-    }
-    GNUNET_CADET_receive_done (op->channel);
+    GNUNET_memcpy (&demands[1],
+                   hash,
+                   sizeof(struct GNUNET_HashCode));
+    GNUNET_MQ_send (op->mq, ev);
+  }
+  GNUNET_CADET_receive_done (op->channel);
 }
 
 
@@ -4079,59 +4078,59 @@ static void
 handle_union_p2p_done (void *cls,
                        const struct GNUNET_MessageHeader *mh)
 {
-    struct Operation *op = cls;
+  struct Operation *op = cls;
 
-    /**
-    * Check that the message is received only in supported phase
-    */
-    uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING};
-    if (GNUNET_OK !=
-        check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
-    {
-        GNUNET_break (0);
-        fail_union_operation (op);
-        return;
-    }
+  /**
+  * Check that the message is received only in supported phase
+  */
+  uint8_t allowed_phases[] = {PHASE_ACTIVE_DECODING, PHASE_PASSIVE_DECODING};
+  if (GNUNET_OK !=
+      check_valid_phase (allowed_phases,sizeof(allowed_phases),op))
+  {
+    GNUNET_break (0);
+    fail_union_operation (op);
+    return;
+  }
 
 #if MEASURE_PERFORMANCE
-    perf_store.done.received += 1;
+  perf_store.done.received += 1;
 #endif
-    switch (op->phase)
-    {
-        case PHASE_PASSIVE_DECODING:
-            /* We got all requests, but still have to send our elements in 
response. */
-            op->phase = PHASE_FINISH_WAITING;
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "got DONE (as passive partner), waiting for our demands to be 
satisfied\n");
-            /* The active peer is done sending offers
-             * and inquiries.  This means that all
-             * our responses to that (demands and offers)
-             * must be in flight (queued or in mesh).
-             *
-             * We should notify the active peer once
-             * all our demands are satisfied, so that the active
-             * peer can quit if we gave it everything.
-             */GNUNET_CADET_receive_done (op->channel);
-            maybe_finish (op);
-            return;
-        case PHASE_ACTIVE_DECODING:
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "got DONE (as active partner), waiting to finish\n");
-            /* All demands of the other peer are satisfied,
-             * and we processed all offers, thus we know
-             * exactly what our demands must be.
-             *
-             * We'll close the channel
-             * to the other peer once our demands are met.
-             */op->phase = PHASE_FINISH_CLOSING;
-            GNUNET_CADET_receive_done (op->channel);
-            maybe_finish (op);
-            return;
-        default:
-            GNUNET_break_op (0);
-            fail_union_operation (op);
-            return;
-    }
+  switch (op->phase)
+  {
+  case PHASE_PASSIVE_DECODING:
+    /* We got all requests, but still have to send our elements in response. */
+    op->phase = PHASE_FINISH_WAITING;
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "got DONE (as passive partner), waiting for our demands to be 
satisfied\n");
+    /* The active peer is done sending offers
+         * and inquiries.  This means that all
+         * our responses to that (demands and offers)
+         * must be in flight (queued or in mesh).
+         *
+         * We should notify the active peer once
+         * all our demands are satisfied, so that the active
+         * peer can quit if we gave it everything.
+         */GNUNET_CADET_receive_done (op->channel);
+    maybe_finish (op);
+    return;
+  case PHASE_ACTIVE_DECODING:
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "got DONE (as active partner), waiting to finish\n");
+    /* All demands of the other peer are satisfied,
+         * and we processed all offers, thus we know
+         * exactly what our demands must be.
+         *
+         * We'll close the channel
+         * to the other peer once our demands are met.
+         */op->phase = PHASE_FINISH_CLOSING;
+    GNUNET_CADET_receive_done (op->channel);
+    maybe_finish (op);
+    return;
+  default:
+    GNUNET_break_op (0);
+    fail_union_operation (op);
+    return;
+  }
 }
 
 
@@ -4146,9 +4145,9 @@ handle_union_p2p_over (void *cls,
                        const struct GNUNET_MessageHeader *mh)
 {
 #if MEASURE_PERFORMANCE
-    perf_store.over.received += 1;
+  perf_store.over.received += 1;
 #endif
-    send_client_done (cls);
+  send_client_done (cls);
 }
 
 
@@ -4163,17 +4162,17 @@ handle_union_p2p_over (void *cls,
 static struct Operation *
 get_incoming (uint32_t id)
 {
-    for (struct Listener *listener = listener_head;
-         NULL != listener;
-         listener = listener->next)
-    {
-        for (struct Operation *op = listener->op_head;
-             NULL != op;
-             op = op->next)
-            if (op->suggest_id == id)
-                return op;
-    }
-    return NULL;
+  for (struct Listener *listener = listener_head;
+       NULL != listener;
+       listener = listener->next)
+  {
+    for (struct Operation *op = listener->op_head;
+         NULL != op;
+         op = op->next)
+      if (op->suggest_id == id)
+        return op;
+  }
+  return NULL;
 }
 
 
@@ -4190,13 +4189,13 @@ client_connect_cb (void *cls,
                    struct GNUNET_SERVICE_Client *c,
                    struct GNUNET_MQ_Handle *mq)
 {
-    struct ClientState *cs;
+  struct ClientState *cs;
 
-    num_clients++;
-    cs = GNUNET_new (struct ClientState);
-    cs->client = c;
-    cs->mq = mq;
-    return cs;
+  num_clients++;
+  cs = GNUNET_new (struct ClientState);
+  cs->client = c;
+  cs->mq = mq;
+  return cs;
 }
 
 
@@ -4213,10 +4212,10 @@ destroy_elements_iterator (void *cls,
                            const struct GNUNET_HashCode *key,
                            void *value)
 {
-    struct ElementEntry *ee = value;
+  struct ElementEntry *ee = value;
 
-    GNUNET_free (ee);
-    return GNUNET_YES;
+  GNUNET_free (ee);
+  return GNUNET_YES;
 }
 
 
@@ -4232,76 +4231,76 @@ client_disconnect_cb (void *cls,
                       struct GNUNET_SERVICE_Client *client,
                       void *internal_cls)
 {
-    struct ClientState *cs = internal_cls;
-    struct Operation *op;
-    struct Listener *listener;
-    struct Set *set;
+  struct ClientState *cs = internal_cls;
+  struct Operation *op;
+  struct Listener *listener;
+  struct Set *set;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Client disconnected, cleaning up\n");
+  if (NULL != (set = cs->set))
+  {
+    struct SetContent *content = set->content;
 
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Client disconnected, cleaning up\n");
-    if (NULL != (set = cs->set))
-    {
-        struct SetContent *content = set->content;
-
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                    "Destroying client's set\n");
-        /* Destroy pending set operations */
-        while (NULL != set->ops_head)
-            _GSS_operation_destroy (set->ops_head);
-
-        /* Destroy operation-specific state */
-        if (NULL != set->se)
-        {
-            strata_estimator_destroy (set->se);
-            set->se = NULL;
-        }
-        /* free set content (or at least decrement RC) */
-        set->content = NULL;
-        GNUNET_assert (0 != content->refcount);
-        content->refcount--;
-        if (0 == content->refcount)
-        {
-            GNUNET_assert (NULL != content->elements);
-            GNUNET_CONTAINER_multihashmap_iterate (content->elements,
-                                                   &destroy_elements_iterator,
-                                                   NULL);
-            GNUNET_CONTAINER_multihashmap_destroy (content->elements);
-            content->elements = NULL;
-            GNUNET_free (content);
-        }
-        GNUNET_free (set);
-    }
+                "Destroying client's set\n");
+    /* Destroy pending set operations */
+    while (NULL != set->ops_head)
+      _GSS_operation_destroy (set->ops_head);
+
+    /* Destroy operation-specific state */
+    if (NULL != set->se)
+    {
+      strata_estimator_destroy (set->se);
+      set->se = NULL;
+    }
+    /* free set content (or at least decrement RC) */
+    set->content = NULL;
+    GNUNET_assert (0 != content->refcount);
+    content->refcount--;
+    if (0 == content->refcount)
+    {
+      GNUNET_assert (NULL != content->elements);
+      GNUNET_CONTAINER_multihashmap_iterate (content->elements,
+                                             &destroy_elements_iterator,
+                                             NULL);
+      GNUNET_CONTAINER_multihashmap_destroy (content->elements);
+      content->elements = NULL;
+      GNUNET_free (content);
+    }
+    GNUNET_free (set);
+  }
 
-    if (NULL != (listener = cs->listener))
-    {
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                    "Destroying client's listener\n");
-        GNUNET_CADET_close_port (listener->open_port);
-        listener->open_port = NULL;
-        while (NULL != (op = listener->op_head))
-        {
-            GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                        "Destroying incoming operation `%u' from peer `%s'\n",
-                        (unsigned int) op->client_request_id,
-                        GNUNET_i2s (&op->peer));
-            incoming_destroy (op);
-        }
-        GNUNET_CONTAINER_DLL_remove (listener_head,
-                                     listener_tail,
-                                     listener);
-        GNUNET_free (listener);
-    }
-    GNUNET_free (cs);
-    num_clients--;
-    if ( (GNUNET_YES == in_shutdown) &&
-         (0 == num_clients) )
+  if (NULL != (listener = cs->listener))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Destroying client's listener\n");
+    GNUNET_CADET_close_port (listener->open_port);
+    listener->open_port = NULL;
+    while (NULL != (op = listener->op_head))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                  "Destroying incoming operation `%u' from peer `%s'\n",
+                  (unsigned int) op->client_request_id,
+                  GNUNET_i2s (&op->peer));
+      incoming_destroy (op);
+    }
+    GNUNET_CONTAINER_DLL_remove (listener_head,
+                                 listener_tail,
+                                 listener);
+    GNUNET_free (listener);
+  }
+  GNUNET_free (cs);
+  num_clients--;
+  if ( (GNUNET_YES == in_shutdown) &&
+       (0 == num_clients) )
+  {
+    if (NULL != cadet)
     {
-        if (NULL != cadet)
-        {
-            GNUNET_CADET_disconnect (cadet);
-            cadet = NULL;
-        }
+      GNUNET_CADET_disconnect (cadet);
+      cadet = NULL;
     }
+  }
 }
 
 
@@ -4317,30 +4316,30 @@ static int
 check_incoming_msg (void *cls,
                     const struct OperationRequestMessage *msg)
 {
-    struct Operation *op = cls;
-    struct Listener *listener = op->listener;
-    const struct GNUNET_MessageHeader *nested_context;
+  struct Operation *op = cls;
+  struct Listener *listener = op->listener;
+  const struct GNUNET_MessageHeader *nested_context;
 
-    /* double operation request */
-    if (0 != op->suggest_id)
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    /* This should be equivalent to the previous condition, but can't hurt to 
check twice */
-    if (NULL == listener)
-    {
-        GNUNET_break (0);
-        return GNUNET_SYSERR;
-    }
-    nested_context = GNUNET_MQ_extract_nested_mh (msg);
-    if ((NULL != nested_context) &&
-        (ntohs (nested_context->size) > GNUNET_SETU_CONTEXT_MESSAGE_MAX_SIZE))
-    {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-    }
-    return GNUNET_OK;
+  /* double operation request */
+  if (0 != op->suggest_id)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  /* This should be equivalent to the previous condition, but can't hurt to 
check twice */
+  if (NULL == listener)
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  nested_context = GNUNET_MQ_extract_nested_mh (msg);
+  if ((NULL != nested_context) &&
+      (ntohs (nested_context->size) > GNUNET_SETU_CONTEXT_MESSAGE_MAX_SIZE))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
 }
 
 
@@ -4363,45 +4362,45 @@ static void
 handle_incoming_msg (void *cls,
                      const struct OperationRequestMessage *msg)
 {
-    struct Operation *op = cls;
-    struct Listener *listener = op->listener;
-    const struct GNUNET_MessageHeader *nested_context;
-    struct GNUNET_MQ_Envelope *env;
-    struct GNUNET_SETU_RequestMessage *cmsg;
-
-    nested_context = GNUNET_MQ_extract_nested_mh (msg);
-    /* Make a copy of the nested_context (application-specific context
-       information that is opaque to set) so we can pass it to the
-       listener later on */
-    if (NULL != nested_context)
-        op->context_msg = GNUNET_copy_message (nested_context);
-    op->remote_element_count = ntohl (msg->element_count);
-    GNUNET_log (
-            GNUNET_ERROR_TYPE_DEBUG,
-            "Received P2P operation request (port %s) for active listener\n",
-            GNUNET_h2s (&op->listener->app_id));
-    GNUNET_assert (0 == op->suggest_id);
-    if (0 == suggest_id)
-        suggest_id++;
-    op->suggest_id = suggest_id++;
-    GNUNET_assert (NULL != op->timeout_task);
-    GNUNET_SCHEDULER_cancel (op->timeout_task);
-    op->timeout_task = NULL;
-    env = GNUNET_MQ_msg_nested_mh (cmsg,
-                                   GNUNET_MESSAGE_TYPE_SETU_REQUEST,
-                                   op->context_msg);
-    GNUNET_log (
-            GNUNET_ERROR_TYPE_DEBUG,
-            "Suggesting incoming request with accept id %u to listener %p of 
client %p\n",
-            op->suggest_id,
-            listener,
-            listener->cs);
-    cmsg->accept_id = htonl (op->suggest_id);
-    cmsg->peer_id = op->peer;
-    GNUNET_MQ_send (listener->cs->mq,
-                    env);
-    /* NOTE: GNUNET_CADET_receive_done() will be called in
-     #handle_client_accept() */
+  struct Operation *op = cls;
+  struct Listener *listener = op->listener;
+  const struct GNUNET_MessageHeader *nested_context;
+  struct GNUNET_MQ_Envelope *env;
+  struct GNUNET_SETU_RequestMessage *cmsg;
+
+  nested_context = GNUNET_MQ_extract_nested_mh (msg);
+  /* Make a copy of the nested_context (application-specific context
+     information that is opaque to set) so we can pass it to the
+     listener later on */
+  if (NULL != nested_context)
+    op->context_msg = GNUNET_copy_message (nested_context);
+  op->remote_element_count = ntohl (msg->element_count);
+  GNUNET_log (
+    GNUNET_ERROR_TYPE_DEBUG,
+    "Received P2P operation request (port %s) for active listener\n",
+    GNUNET_h2s (&op->listener->app_id));
+  GNUNET_assert (0 == op->suggest_id);
+  if (0 == suggest_id)
+    suggest_id++;
+  op->suggest_id = suggest_id++;
+  GNUNET_assert (NULL != op->timeout_task);
+  GNUNET_SCHEDULER_cancel (op->timeout_task);
+  op->timeout_task = NULL;
+  env = GNUNET_MQ_msg_nested_mh (cmsg,
+                                 GNUNET_MESSAGE_TYPE_SETU_REQUEST,
+                                 op->context_msg);
+  GNUNET_log (
+    GNUNET_ERROR_TYPE_DEBUG,
+    "Suggesting incoming request with accept id %u to listener %p of client 
%p\n",
+    op->suggest_id,
+    listener,
+    listener->cs);
+  cmsg->accept_id = htonl (op->suggest_id);
+  cmsg->peer_id = op->peer;
+  GNUNET_MQ_send (listener->cs->mq,
+                  env);
+  /* NOTE: GNUNET_CADET_receive_done() will be called in
+   #handle_client_accept() */
 }
 
 
@@ -4417,42 +4416,42 @@ static void
 handle_client_create_set (void *cls,
                           const struct GNUNET_SETU_CreateMessage *msg)
 {
-    struct ClientState *cs = cls;
-    struct Set *set;
+  struct ClientState *cs = cls;
+  struct Set *set;
 
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Client created new set for union operation\n");
-    if (NULL != cs->set)
-    {
-        /* There can only be one set per client */
-        GNUNET_break (0);
-        GNUNET_SERVICE_client_drop (cs->client);
-        return;
-    }
-    set = GNUNET_new (struct Set);
-    {
-        struct MultiStrataEstimator *se;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Client created new set for union operation\n");
+  if (NULL != cs->set)
+  {
+    /* There can only be one set per client */
+    GNUNET_break (0);
+    GNUNET_SERVICE_client_drop (cs->client);
+    return;
+  }
+  set = GNUNET_new (struct Set);
+  {
+    struct MultiStrataEstimator *se;
 
-        se = strata_estimator_create (SE_STRATA_COUNT,
-                                      SE_IBFS_TOTAL_SIZE,
-                                      SE_IBF_HASH_NUM);
-        if (NULL == se)
-        {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "Failed to allocate strata estimator\n");
-            GNUNET_free (set);
-            GNUNET_SERVICE_client_drop (cs->client);
-            return;
-        }
-        set->se = se;
+    se = strata_estimator_create (SE_STRATA_COUNT,
+                                  SE_IBFS_TOTAL_SIZE,
+                                  SE_IBF_HASH_NUM);
+    if (NULL == se)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to allocate strata estimator\n");
+      GNUNET_free (set);
+      GNUNET_SERVICE_client_drop (cs->client);
+      return;
     }
-    set->content = GNUNET_new (struct SetContent);
-    set->content->refcount = 1;
-    set->content->elements = GNUNET_CONTAINER_multihashmap_create (1,
-                                                                   GNUNET_YES);
-    set->cs = cs;
-    cs->set = set;
-    GNUNET_SERVICE_client_continue (cs->client);
+    set->se = se;
+  }
+  set->content = GNUNET_new (struct SetContent);
+  set->content->refcount = 1;
+  set->content->elements = GNUNET_CONTAINER_multihashmap_create (1,
+                                                                 GNUNET_YES);
+  set->cs = cs;
+  cs->set = set;
+  GNUNET_SERVICE_client_continue (cs->client);
 }
 
 
@@ -4468,12 +4467,12 @@ handle_client_create_set (void *cls,
 static void
 incoming_timeout_cb (void *cls)
 {
-    struct Operation *op = cls;
+  struct Operation *op = cls;
 
-    op->timeout_task = NULL;
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Remote peer's incoming request timed out\n");
-    incoming_destroy (op);
+  op->timeout_task = NULL;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Remote peer's incoming request timed out\n");
+  incoming_destroy (op);
 }
 
 
@@ -4498,25 +4497,25 @@ channel_new_cb (void *cls,
                 struct GNUNET_CADET_Channel *channel,
                 const struct GNUNET_PeerIdentity *source)
 {
-    struct Listener *listener = cls;
-    struct Operation *op;
-
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "New incoming channel\n");
-    op = GNUNET_new (struct Operation);
-    op->listener = listener;
-    op->peer = *source;
-    op->channel = channel;
-    op->mq = GNUNET_CADET_get_mq (op->channel);
-    op->salt = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE,
-                                         UINT32_MAX);
-    op->timeout_task = GNUNET_SCHEDULER_add_delayed (INCOMING_CHANNEL_TIMEOUT,
-                                                     &incoming_timeout_cb,
-                                                     op);
-    GNUNET_CONTAINER_DLL_insert (listener->op_head,
-                                 listener->op_tail,
-                                 op);
-    return op;
+  struct Listener *listener = cls;
+  struct Operation *op;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "New incoming channel\n");
+  op = GNUNET_new (struct Operation);
+  op->listener = listener;
+  op->peer = *source;
+  op->channel = channel;
+  op->mq = GNUNET_CADET_get_mq (op->channel);
+  op->salt = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE,
+                                       UINT32_MAX);
+  op->timeout_task = GNUNET_SCHEDULER_add_delayed (INCOMING_CHANNEL_TIMEOUT,
+                                                   &incoming_timeout_cb,
+                                                   op);
+  GNUNET_CONTAINER_DLL_insert (listener->op_head,
+                               listener->op_tail,
+                               op);
+  return op;
 }
 
 
@@ -4540,10 +4539,10 @@ static void
 channel_end_cb (void *channel_ctx,
                 const struct GNUNET_CADET_Channel *channel)
 {
-    struct Operation *op = channel_ctx;
+  struct Operation *op = channel_ctx;
 
-    op->channel = NULL;
-    _GSS_operation_destroy2 (op);
+  op->channel = NULL;
+  _GSS_operation_destroy2 (op);
 }
 
 
@@ -4566,7 +4565,7 @@ channel_window_cb (void *cls,
                    const struct GNUNET_CADET_Channel *channel,
                    int window_size)
 {
-    /* FIXME: not implemented, we could do flow control here... */
+  /* FIXME: not implemented, we could do flow control here... */
 }
 
 
@@ -4581,93 +4580,93 @@ static void
 handle_client_listen (void *cls,
                       const struct GNUNET_SETU_ListenMessage *msg)
 {
-    struct ClientState *cs = cls;
-    struct GNUNET_MQ_MessageHandler cadet_handlers[] = {
-            GNUNET_MQ_hd_var_size (incoming_msg,
-                                   
GNUNET_MESSAGE_TYPE_SETU_P2P_OPERATION_REQUEST,
-                                   struct OperationRequestMessage,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_ibf,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_IBF,
-                                   struct IBFMessage,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_elements,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_ELEMENTS,
-                                   struct GNUNET_SETU_ElementMessage,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_offer,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_OFFER,
-                                   struct GNUNET_MessageHeader,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_inquiry,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_INQUIRY,
-                                   struct InquiryMessage,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_demand,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_DEMAND,
-                                   struct GNUNET_MessageHeader,
-                                   NULL),
-            GNUNET_MQ_hd_fixed_size (union_p2p_done,
-                                     GNUNET_MESSAGE_TYPE_SETU_P2P_DONE,
-                                     struct GNUNET_MessageHeader,
-                                     NULL),
-            GNUNET_MQ_hd_fixed_size (union_p2p_over,
-                                     GNUNET_MESSAGE_TYPE_SETU_P2P_OVER,
-                                     struct GNUNET_MessageHeader,
-                                     NULL),
-            GNUNET_MQ_hd_fixed_size (union_p2p_full_done,
-                                     GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_DONE,
-                                     struct GNUNET_MessageHeader,
-                                     NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_request_full,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_REQUEST_FULL,
-                                   struct TransmitFullMessage,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_strata_estimator,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_SE,
-                                   struct StrataEstimatorMessage,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_strata_estimator,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_SEC,
-                                   struct StrataEstimatorMessage,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_full_element,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_ELEMENT,
-                                   struct GNUNET_SETU_ElementMessage,
-                                   NULL),
-            GNUNET_MQ_hd_var_size (union_p2p_send_full,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_SEND_FULL,
-                                   struct TransmitFullMessage,
-                                   NULL),
-            GNUNET_MQ_handler_end ()
-    };
-    struct Listener *listener;
-
-    if (NULL != cs->listener)
-    {
-        /* max. one active listener per client! */
-        GNUNET_break (0);
-        GNUNET_SERVICE_client_drop (cs->client);
-        return;
-    }
-    listener = GNUNET_new (struct Listener);
-    listener->cs = cs;
-    cs->listener = listener;
-    listener->app_id = msg->app_id;
-    GNUNET_CONTAINER_DLL_insert (listener_head,
-                                 listener_tail,
-                                 listener);
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "New listener created (port %s)\n",
-                GNUNET_h2s (&listener->app_id));
-    listener->open_port = GNUNET_CADET_open_port (cadet,
-                                                  &msg->app_id,
-                                                  &channel_new_cb,
-                                                  listener,
-                                                  &channel_window_cb,
-                                                  &channel_end_cb,
-                                                  cadet_handlers);
-    GNUNET_SERVICE_client_continue (cs->client);
+  struct ClientState *cs = cls;
+  struct GNUNET_MQ_MessageHandler cadet_handlers[] = {
+    GNUNET_MQ_hd_var_size (incoming_msg,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_OPERATION_REQUEST,
+                           struct OperationRequestMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_ibf,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_IBF,
+                           struct IBFMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_elements,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_ELEMENTS,
+                           struct GNUNET_SETU_ElementMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_offer,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_OFFER,
+                           struct GNUNET_MessageHeader,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_inquiry,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_INQUIRY,
+                           struct InquiryMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_demand,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_DEMAND,
+                           struct GNUNET_MessageHeader,
+                           NULL),
+    GNUNET_MQ_hd_fixed_size (union_p2p_done,
+                             GNUNET_MESSAGE_TYPE_SETU_P2P_DONE,
+                             struct GNUNET_MessageHeader,
+                             NULL),
+    GNUNET_MQ_hd_fixed_size (union_p2p_over,
+                             GNUNET_MESSAGE_TYPE_SETU_P2P_OVER,
+                             struct GNUNET_MessageHeader,
+                             NULL),
+    GNUNET_MQ_hd_fixed_size (union_p2p_full_done,
+                             GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_DONE,
+                             struct GNUNET_MessageHeader,
+                             NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_request_full,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_REQUEST_FULL,
+                           struct TransmitFullMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_strata_estimator,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_SE,
+                           struct StrataEstimatorMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_strata_estimator,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_SEC,
+                           struct StrataEstimatorMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_full_element,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_ELEMENT,
+                           struct GNUNET_SETU_ElementMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (union_p2p_send_full,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_SEND_FULL,
+                           struct TransmitFullMessage,
+                           NULL),
+    GNUNET_MQ_handler_end ()
+  };
+  struct Listener *listener;
+
+  if (NULL != cs->listener)
+  {
+    /* max. one active listener per client! */
+    GNUNET_break (0);
+    GNUNET_SERVICE_client_drop (cs->client);
+    return;
+  }
+  listener = GNUNET_new (struct Listener);
+  listener->cs = cs;
+  cs->listener = listener;
+  listener->app_id = msg->app_id;
+  GNUNET_CONTAINER_DLL_insert (listener_head,
+                               listener_tail,
+                               listener);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "New listener created (port %s)\n",
+              GNUNET_h2s (&listener->app_id));
+  listener->open_port = GNUNET_CADET_open_port (cadet,
+                                                &msg->app_id,
+                                                &channel_new_cb,
+                                                listener,
+                                                &channel_window_cb,
+                                                &channel_end_cb,
+                                                cadet_handlers);
+  GNUNET_SERVICE_client_continue (cs->client);
 }
 
 
@@ -4682,25 +4681,25 @@ static void
 handle_client_reject (void *cls,
                       const struct GNUNET_SETU_RejectMessage *msg)
 {
-    struct ClientState *cs = cls;
-    struct Operation *op;
+  struct ClientState *cs = cls;
+  struct Operation *op;
 
-    op = get_incoming (ntohl (msg->accept_reject_id));
-    if (NULL == op)
-    {
-        /* no matching incoming operation for this reject;
-           could be that the other peer already disconnected... */
-        GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                    "Client rejected unknown operation %u\n",
-                    (unsigned int) ntohl (msg->accept_reject_id));
-        GNUNET_SERVICE_client_continue (cs->client);
-        return;
-    }
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Peer request (app %s) rejected by client\n",
-                GNUNET_h2s (&cs->listener->app_id));
-    _GSS_operation_destroy2 (op);
+  op = get_incoming (ntohl (msg->accept_reject_id));
+  if (NULL == op)
+  {
+    /* no matching incoming operation for this reject;
+       could be that the other peer already disconnected... */
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Client rejected unknown operation %u\n",
+                (unsigned int) ntohl (msg->accept_reject_id));
     GNUNET_SERVICE_client_continue (cs->client);
+    return;
+  }
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Peer request (app %s) rejected by client\n",
+              GNUNET_h2s (&cs->listener->app_id));
+  _GSS_operation_destroy2 (op);
+  GNUNET_SERVICE_client_continue (cs->client);
 }
 
 
@@ -4714,9 +4713,9 @@ static int
 check_client_set_add (void *cls,
                       const struct GNUNET_SETU_ElementMessage *msg)
 {
-    /* NOTE: Technically, we should probably check with the
-       block library whether the element we are given is well-formed */
-    return GNUNET_OK;
+  /* NOTE: Technically, we should probably check with the
+     block library whether the element we are given is well-formed */
+  return GNUNET_OK;
 }
 
 
@@ -4730,60 +4729,60 @@ static void
 handle_client_set_add (void *cls,
                        const struct GNUNET_SETU_ElementMessage *msg)
 {
-    struct ClientState *cs = cls;
-    struct Set *set;
-    struct GNUNET_SETU_Element el;
-    struct ElementEntry *ee;
-    struct GNUNET_HashCode hash;
+  struct ClientState *cs = cls;
+  struct Set *set;
+  struct GNUNET_SETU_Element el;
+  struct ElementEntry *ee;
+  struct GNUNET_HashCode hash;
 
-    if (NULL == (set = cs->set))
-    {
-        /* client without a set requested an operation */
-        GNUNET_break (0);
-        GNUNET_SERVICE_client_drop (cs->client);
-        return;
-    }
-    GNUNET_SERVICE_client_continue (cs->client);
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Executing mutation on set\n");
-    el.size = ntohs (msg->header.size) - sizeof(*msg);
-    el.data = &msg[1];
-    el.element_type = ntohs (msg->element_type);
-    GNUNET_SETU_element_hash (&el,
-                              &hash);
-    ee = GNUNET_CONTAINER_multihashmap_get (set->content->elements,
-                                            &hash);
-    if (NULL == ee)
-    {
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                    "Client inserts element %s of size %u\n",
-                    GNUNET_h2s (&hash),
-                    el.size);
-        ee = GNUNET_malloc (el.size + sizeof(*ee));
-        ee->element.size = el.size;
-        GNUNET_memcpy (&ee[1], el.data, el.size);
-        ee->element.data = &ee[1];
-        ee->element.element_type = el.element_type;
-        ee->remote = GNUNET_NO;
-        ee->generation = set->current_generation;
-        ee->element_hash = hash;
-        GNUNET_break (GNUNET_YES ==
-                      GNUNET_CONTAINER_multihashmap_put (
-                              set->content->elements,
-                              &ee->element_hash,
-                              ee,
-                              
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-    }
-    else
-    {
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                    "Client inserted element %s of size %u twice (ignored)\n",
-                    GNUNET_h2s (&hash),
-                    el.size);
-        /* same element inserted twice */
-        return;
-    }
-    strata_estimator_insert (set->se,
-                             get_ibf_key (&ee->element_hash));
+  if (NULL == (set = cs->set))
+  {
+    /* client without a set requested an operation */
+    GNUNET_break (0);
+    GNUNET_SERVICE_client_drop (cs->client);
+    return;
+  }
+  GNUNET_SERVICE_client_continue (cs->client);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Executing mutation on set\n");
+  el.size = ntohs (msg->header.size) - sizeof(*msg);
+  el.data = &msg[1];
+  el.element_type = ntohs (msg->element_type);
+  GNUNET_SETU_element_hash (&el,
+                            &hash);
+  ee = GNUNET_CONTAINER_multihashmap_get (set->content->elements,
+                                          &hash);
+  if (NULL == ee)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Client inserts element %s of size %u\n",
+                GNUNET_h2s (&hash),
+                el.size);
+    ee = GNUNET_malloc (el.size + sizeof(*ee));
+    ee->element.size = el.size;
+    GNUNET_memcpy (&ee[1], el.data, el.size);
+    ee->element.data = &ee[1];
+    ee->element.element_type = el.element_type;
+    ee->remote = GNUNET_NO;
+    ee->generation = set->current_generation;
+    ee->element_hash = hash;
+    GNUNET_break (GNUNET_YES ==
+                  GNUNET_CONTAINER_multihashmap_put (
+                    set->content->elements,
+                    &ee->element_hash,
+                    ee,
+                    GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+  }
+  else
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Client inserted element %s of size %u twice (ignored)\n",
+                GNUNET_h2s (&hash),
+                el.size);
+    /* same element inserted twice */
+    return;
+  }
+  strata_estimator_insert (set->se,
+                           get_ibf_key (&ee->element_hash));
 }
 
 
@@ -4796,8 +4795,8 @@ handle_client_set_add (void *cls,
 static void
 advance_generation (struct Set *set)
 {
-    set->content->latest_generation++;
-    set->current_generation++;
+  set->content->latest_generation++;
+  set->current_generation++;
 }
 
 
@@ -4814,9 +4813,9 @@ static int
 check_client_evaluate (void *cls,
                        const struct GNUNET_SETU_EvaluateMessage *msg)
 {
-    /* FIXME: suboptimal, even if the context below could be NULL,
-       there are malformed messages this does not check for... */
-    return GNUNET_OK;
+  /* FIXME: suboptimal, even if the context below could be NULL,
+     there are malformed messages this does not check for... */
+  return GNUNET_OK;
 }
 
 
@@ -4832,174 +4831,174 @@ static void
 handle_client_evaluate (void *cls,
                         const struct GNUNET_SETU_EvaluateMessage *msg)
 {
-    struct ClientState *cs = cls;
-    struct Operation *op = GNUNET_new (struct Operation);
-
-    const struct GNUNET_MQ_MessageHandler cadet_handlers[] = {
-            GNUNET_MQ_hd_var_size (incoming_msg,
-                                   
GNUNET_MESSAGE_TYPE_SETU_P2P_OPERATION_REQUEST,
-                                   struct OperationRequestMessage,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_ibf,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_IBF,
-                                   struct IBFMessage,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_elements,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_ELEMENTS,
-                                   struct GNUNET_SETU_ElementMessage,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_offer,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_OFFER,
-                                   struct GNUNET_MessageHeader,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_inquiry,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_INQUIRY,
-                                   struct InquiryMessage,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_demand,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_DEMAND,
-                                   struct GNUNET_MessageHeader,
-                                   op),
-            GNUNET_MQ_hd_fixed_size (union_p2p_done,
-                                     GNUNET_MESSAGE_TYPE_SETU_P2P_DONE,
-                                     struct GNUNET_MessageHeader,
-                                     op),
-            GNUNET_MQ_hd_fixed_size (union_p2p_over,
-                                     GNUNET_MESSAGE_TYPE_SETU_P2P_OVER,
-                                     struct GNUNET_MessageHeader,
-                                     op),
-            GNUNET_MQ_hd_fixed_size (union_p2p_full_done,
-                                     GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_DONE,
-                                     struct GNUNET_MessageHeader,
-                                     op),
-            GNUNET_MQ_hd_var_size (union_p2p_request_full,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_REQUEST_FULL,
-                                   struct TransmitFullMessage,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_strata_estimator,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_SE,
-                                   struct StrataEstimatorMessage,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_strata_estimator,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_SEC,
-                                   struct StrataEstimatorMessage,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_full_element,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_ELEMENT,
-                                   struct GNUNET_SETU_ElementMessage,
-                                   op),
-            GNUNET_MQ_hd_var_size (union_p2p_send_full,
-                                   GNUNET_MESSAGE_TYPE_SETU_P2P_SEND_FULL,
-                                   struct TransmitFullMessage,
-                                   NULL),
-            GNUNET_MQ_handler_end ()
-    };
-    struct Set *set;
-    const struct GNUNET_MessageHeader *context;
-
-    if (NULL == (set = cs->set))
-    {
-        GNUNET_break (0);
-        GNUNET_free (op);
-        GNUNET_SERVICE_client_drop (cs->client);
-        return;
-    }
-    op->salt = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE,
-                                         UINT32_MAX);
-    op->peer = msg->target_peer;
-    op->client_request_id = ntohl (msg->request_id);
-    op->byzantine = msg->byzantine;
-    op->byzantine_lower_bound = ntohl (msg->byzantine_lower_bound);
-    op->force_full = msg->force_full;
-    op->force_delta = msg->force_delta;
-    op->symmetric = msg->symmetric;
-    op->rtt_bandwidth_tradeoff = msg->bandwidth_latency_tradeoff;
-    op->ibf_bucket_number_factor = msg->ibf_bucket_number_factor;
-    op->ibf_number_buckets_per_element = 
msg->ibf_number_of_buckets_per_element;
-    op->byzantine_upper_bound = msg->byzantine_upper_bond;
-    context = GNUNET_MQ_extract_nested_mh (msg);
-
-    /* create hashmap for message control */
-    op->message_control_flow = GNUNET_CONTAINER_multihashmap_create (32,
-                                                                     
GNUNET_NO);
-    op->inquiries_sent = GNUNET_CONTAINER_multihashmap_create (32,GNUNET_NO);
+  struct ClientState *cs = cls;
+  struct Operation *op = GNUNET_new (struct Operation);
+
+  const struct GNUNET_MQ_MessageHandler cadet_handlers[] = {
+    GNUNET_MQ_hd_var_size (incoming_msg,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_OPERATION_REQUEST,
+                           struct OperationRequestMessage,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_ibf,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_IBF,
+                           struct IBFMessage,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_elements,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_ELEMENTS,
+                           struct GNUNET_SETU_ElementMessage,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_offer,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_OFFER,
+                           struct GNUNET_MessageHeader,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_inquiry,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_INQUIRY,
+                           struct InquiryMessage,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_demand,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_DEMAND,
+                           struct GNUNET_MessageHeader,
+                           op),
+    GNUNET_MQ_hd_fixed_size (union_p2p_done,
+                             GNUNET_MESSAGE_TYPE_SETU_P2P_DONE,
+                             struct GNUNET_MessageHeader,
+                             op),
+    GNUNET_MQ_hd_fixed_size (union_p2p_over,
+                             GNUNET_MESSAGE_TYPE_SETU_P2P_OVER,
+                             struct GNUNET_MessageHeader,
+                             op),
+    GNUNET_MQ_hd_fixed_size (union_p2p_full_done,
+                             GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_DONE,
+                             struct GNUNET_MessageHeader,
+                             op),
+    GNUNET_MQ_hd_var_size (union_p2p_request_full,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_REQUEST_FULL,
+                           struct TransmitFullMessage,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_strata_estimator,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_SE,
+                           struct StrataEstimatorMessage,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_strata_estimator,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_SEC,
+                           struct StrataEstimatorMessage,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_full_element,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_FULL_ELEMENT,
+                           struct GNUNET_SETU_ElementMessage,
+                           op),
+    GNUNET_MQ_hd_var_size (union_p2p_send_full,
+                           GNUNET_MESSAGE_TYPE_SETU_P2P_SEND_FULL,
+                           struct TransmitFullMessage,
+                           NULL),
+    GNUNET_MQ_handler_end ()
+  };
+  struct Set *set;
+  const struct GNUNET_MessageHeader *context;
+
+  if (NULL == (set = cs->set))
+  {
+    GNUNET_break (0);
+    GNUNET_free (op);
+    GNUNET_SERVICE_client_drop (cs->client);
+    return;
+  }
+  op->salt = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE,
+                                       UINT32_MAX);
+  op->peer = msg->target_peer;
+  op->client_request_id = ntohl (msg->request_id);
+  op->byzantine = msg->byzantine;
+  op->byzantine_lower_bound = ntohl (msg->byzantine_lower_bound);
+  op->force_full = msg->force_full;
+  op->force_delta = msg->force_delta;
+  op->symmetric = msg->symmetric;
+  op->rtt_bandwidth_tradeoff = msg->bandwidth_latency_tradeoff;
+  op->ibf_bucket_number_factor = msg->ibf_bucket_number_factor;
+  op->ibf_number_buckets_per_element = msg->ibf_number_of_buckets_per_element;
+  op->byzantine_upper_bound = msg->byzantine_upper_bond;
+  context = GNUNET_MQ_extract_nested_mh (msg);
+
+  /* create hashmap for message control */
+  op->message_control_flow = GNUNET_CONTAINER_multihashmap_create (32,
+                                                                   GNUNET_NO);
+  op->inquiries_sent = GNUNET_CONTAINER_multihashmap_create (32,GNUNET_NO);
 
 #if MEASURE_PERFORMANCE
-    /* load config */
+  /* load config */
   load_config (op);
 #endif
 
-    /* Advance generation values, so that
-       mutations won't interfer with the running operation. */
-    op->set = set;
-    op->generation_created = set->current_generation;
-    advance_generation (set);
-    GNUNET_CONTAINER_DLL_insert (set->ops_head,
-                                 set->ops_tail,
-                                 op);
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Creating new CADET channel to port %s for set union\n",
-                GNUNET_h2s (&msg->app_id));
-    op->channel = GNUNET_CADET_channel_create (cadet,
-                                               op,
-                                               &msg->target_peer,
-                                               &msg->app_id,
-                                               &channel_window_cb,
-                                               &channel_end_cb,
-                                               cadet_handlers);
-    op->mq = GNUNET_CADET_get_mq (op->channel);
-    {
-        struct GNUNET_MQ_Envelope *ev;
-        struct OperationRequestMessage *msg;
+  /* Advance generation values, so that
+     mutations won't interfer with the running operation. */
+  op->set = set;
+  op->generation_created = set->current_generation;
+  advance_generation (set);
+  GNUNET_CONTAINER_DLL_insert (set->ops_head,
+                               set->ops_tail,
+                               op);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Creating new CADET channel to port %s for set union\n",
+              GNUNET_h2s (&msg->app_id));
+  op->channel = GNUNET_CADET_channel_create (cadet,
+                                             op,
+                                             &msg->target_peer,
+                                             &msg->app_id,
+                                             &channel_window_cb,
+                                             &channel_end_cb,
+                                             cadet_handlers);
+  op->mq = GNUNET_CADET_get_mq (op->channel);
+  {
+    struct GNUNET_MQ_Envelope *ev;
+    struct OperationRequestMessage *msg;
 
 #if MEASURE_PERFORMANCE
-        perf_store.operation_request.sent += 1;
+    perf_store.operation_request.sent += 1;
 #endif
-        ev = GNUNET_MQ_msg_nested_mh (msg,
-                                      
GNUNET_MESSAGE_TYPE_SETU_P2P_OPERATION_REQUEST,
-                                      context);
-        if (NULL == ev)
-        {
-            /* the context message is too large */
-            GNUNET_break (0);
-            GNUNET_SERVICE_client_drop (cs->client);
-            return;
-        }
-        op->demanded_hashes = GNUNET_CONTAINER_multihashmap_create (32,
-                                                                    GNUNET_NO);
-        /* copy the current generation's strata estimator for this operation */
-        op->se = strata_estimator_dup (op->set->se);
-        /* we started the operation, thus we have to send the operation 
request */
-        op->phase = PHASE_EXPECT_SE;
+    ev = GNUNET_MQ_msg_nested_mh (msg,
+                                  
GNUNET_MESSAGE_TYPE_SETU_P2P_OPERATION_REQUEST,
+                                  context);
+    if (NULL == ev)
+    {
+      /* the context message is too large */
+      GNUNET_break (0);
+      GNUNET_SERVICE_client_drop (cs->client);
+      return;
+    }
+    op->demanded_hashes = GNUNET_CONTAINER_multihashmap_create (32,
+                                                                GNUNET_NO);
+    /* copy the current generation's strata estimator for this operation */
+    op->se = strata_estimator_dup (op->set->se);
+    /* we started the operation, thus we have to send the operation request */
+    op->phase = PHASE_EXPECT_SE;
 
-        op->salt_receive = (op->peer_site + 1) % 2;
-        op->salt_send = op->peer_site; // FIXME?????
+    op->salt_receive = (op->peer_site + 1) % 2;
+    op->salt_send = op->peer_site;     // FIXME?????
 
 
-        LOG (GNUNET_ERROR_TYPE_DEBUG,
-             "Initiating union operation evaluation\n");
-        GNUNET_STATISTICS_update (_GSS_statistics,
-                                  "# of total union operations",
-                                  1,
-                                  GNUNET_NO);
-        GNUNET_STATISTICS_update (_GSS_statistics,
-                                  "# of initiated union operations",
-                                  1,
-                                  GNUNET_NO);
-        GNUNET_MQ_send (op->mq,
-                        ev);
-        if (NULL != context)
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "sent op request with context message\n");
-        else
-            LOG (GNUNET_ERROR_TYPE_DEBUG,
-                 "sent op request without context message\n");
-        initialize_key_to_element (op);
-        op->initial_size = GNUNET_CONTAINER_multihashmap32_size (
-                op->key_to_element);
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Initiating union operation evaluation\n");
+    GNUNET_STATISTICS_update (_GSS_statistics,
+                              "# of total union operations",
+                              1,
+                              GNUNET_NO);
+    GNUNET_STATISTICS_update (_GSS_statistics,
+                              "# of initiated union operations",
+                              1,
+                              GNUNET_NO);
+    GNUNET_MQ_send (op->mq,
+                    ev);
+    if (NULL != context)
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "sent op request with context message\n");
+    else
+      LOG (GNUNET_ERROR_TYPE_DEBUG,
+           "sent op request without context message\n");
+    initialize_key_to_element (op);
+    op->initial_size = GNUNET_CONTAINER_multihashmap32_size (
+      op->key_to_element);
 
-    }
-    GNUNET_SERVICE_client_continue (cs->client);
+  }
+  GNUNET_SERVICE_client_continue (cs->client);
 }
 
 
@@ -5013,46 +5012,46 @@ static void
 handle_client_cancel (void *cls,
                       const struct GNUNET_SETU_CancelMessage *msg)
 {
-    struct ClientState *cs = cls;
-    struct Set *set;
-    struct Operation *op;
-    int found;
+  struct ClientState *cs = cls;
+  struct Set *set;
+  struct Operation *op;
+  int found;
 
-    if (NULL == (set = cs->set))
-    {
-        /* client without a set requested an operation */
-        GNUNET_break (0);
-        GNUNET_SERVICE_client_drop (cs->client);
-        return;
-    }
-    found = GNUNET_NO;
-    for (op = set->ops_head; NULL != op; op = op->next)
-    {
-        if (op->client_request_id == ntohl (msg->request_id))
-        {
-            found = GNUNET_YES;
-            break;
-        }
-    }
-    if (GNUNET_NO == found)
-    {
-        /* It may happen that the operation was already destroyed due to
-         * the other peer disconnecting.  The client may not know about this
-         * yet and try to cancel the (just barely non-existent) operation.
-         * So this is not a hard error.
-         *///
-        GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                    "Client canceled non-existent op %u\n",
-                    (uint32_t) ntohl (msg->request_id));
-    }
-    else
+  if (NULL == (set = cs->set))
+  {
+    /* client without a set requested an operation */
+    GNUNET_break (0);
+    GNUNET_SERVICE_client_drop (cs->client);
+    return;
+  }
+  found = GNUNET_NO;
+  for (op = set->ops_head; NULL != op; op = op->next)
+  {
+    if (op->client_request_id == ntohl (msg->request_id))
     {
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                    "Client requested cancel for op %u\n",
-                    (uint32_t) ntohl (msg->request_id));
-        _GSS_operation_destroy (op);
+      found = GNUNET_YES;
+      break;
     }
-    GNUNET_SERVICE_client_continue (cs->client);
+  }
+  if (GNUNET_NO == found)
+  {
+    /* It may happen that the operation was already destroyed due to
+     * the other peer disconnecting.  The client may not know about this
+     * yet and try to cancel the (just barely non-existent) operation.
+     * So this is not a hard error.
+     *///
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Client canceled non-existent op %u\n",
+                (uint32_t) ntohl (msg->request_id));
+  }
+  else
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Client requested cancel for op %u\n",
+                (uint32_t) ntohl (msg->request_id));
+    _GSS_operation_destroy (op);
+  }
+  GNUNET_SERVICE_client_continue (cs->client);
 }
 
 
@@ -5068,154 +5067,154 @@ static void
 handle_client_accept (void *cls,
                       const struct GNUNET_SETU_AcceptMessage *msg)
 {
-    struct ClientState *cs = cls;
-    struct Set *set;
-    struct Operation *op;
-    struct GNUNET_SETU_ResultMessage *result_message;
-    struct GNUNET_MQ_Envelope *ev;
-    struct Listener *listener;
-
-    if (NULL == (set = cs->set))
-    {
-        /* client without a set requested to accept */
-        GNUNET_break (0);
-        GNUNET_SERVICE_client_drop (cs->client);
-        return;
-    }
-    op = get_incoming (ntohl (msg->accept_reject_id));
-    if (NULL == op)
-    {
-        /* It is not an error if the set op does not exist -- it may
-        * have been destroyed when the partner peer disconnected. */
-        GNUNET_log (
-                GNUNET_ERROR_TYPE_INFO,
-                "Client %p accepted request %u of listener %p that is no 
longer active\n",
-                cs,
-                ntohl (msg->accept_reject_id),
-                cs->listener);
-        ev = GNUNET_MQ_msg (result_message,
-                            GNUNET_MESSAGE_TYPE_SETU_RESULT);
-        result_message->request_id = msg->request_id;
-        result_message->result_status = htons (GNUNET_SETU_STATUS_FAILURE);
-        GNUNET_MQ_send (set->cs->mq, ev);
-        GNUNET_SERVICE_client_continue (cs->client);
-        return;
-    }
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Client accepting request %u\n",
-                (uint32_t) ntohl (msg->accept_reject_id));
-    listener = op->listener;
-    op->listener = NULL;
-    GNUNET_CONTAINER_DLL_remove (listener->op_head,
-                                 listener->op_tail,
-                                 op);
-    op->set = set;
-    GNUNET_CONTAINER_DLL_insert (set->ops_head,
-                                 set->ops_tail,
-                                 op);
-    op->client_request_id = ntohl (msg->request_id);
-    op->byzantine = msg->byzantine;
-    op->byzantine_lower_bound = ntohl (msg->byzantine_lower_bound);
-    op->force_full = msg->force_full;
-    op->force_delta = msg->force_delta;
-    op->symmetric = msg->symmetric;
-    op->rtt_bandwidth_tradeoff = msg->bandwidth_latency_tradeoff;
-    op->ibf_bucket_number_factor = msg->ibf_bucket_number_factor;
-    op->ibf_number_buckets_per_element = 
msg->ibf_number_of_buckets_per_element;
-    op->byzantine_upper_bound = msg->byzantine_upper_bond;
-    /* create hashmap for message control */
-    op->message_control_flow = GNUNET_CONTAINER_multihashmap_create (32,
-                                                                     
GNUNET_NO);
-    op->inquiries_sent = GNUNET_CONTAINER_multihashmap_create (32,GNUNET_NO);
+  struct ClientState *cs = cls;
+  struct Set *set;
+  struct Operation *op;
+  struct GNUNET_SETU_ResultMessage *result_message;
+  struct GNUNET_MQ_Envelope *ev;
+  struct Listener *listener;
+
+  if (NULL == (set = cs->set))
+  {
+    /* client without a set requested to accept */
+    GNUNET_break (0);
+    GNUNET_SERVICE_client_drop (cs->client);
+    return;
+  }
+  op = get_incoming (ntohl (msg->accept_reject_id));
+  if (NULL == op)
+  {
+    /* It is not an error if the set op does not exist -- it may
+    * have been destroyed when the partner peer disconnected. */
+    GNUNET_log (
+      GNUNET_ERROR_TYPE_INFO,
+      "Client %p accepted request %u of listener %p that is no longer 
active\n",
+      cs,
+      ntohl (msg->accept_reject_id),
+      cs->listener);
+    ev = GNUNET_MQ_msg (result_message,
+                        GNUNET_MESSAGE_TYPE_SETU_RESULT);
+    result_message->request_id = msg->request_id;
+    result_message->result_status = htons (GNUNET_SETU_STATUS_FAILURE);
+    GNUNET_MQ_send (set->cs->mq, ev);
+    GNUNET_SERVICE_client_continue (cs->client);
+    return;
+  }
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Client accepting request %u\n",
+              (uint32_t) ntohl (msg->accept_reject_id));
+  listener = op->listener;
+  op->listener = NULL;
+  GNUNET_CONTAINER_DLL_remove (listener->op_head,
+                               listener->op_tail,
+                               op);
+  op->set = set;
+  GNUNET_CONTAINER_DLL_insert (set->ops_head,
+                               set->ops_tail,
+                               op);
+  op->client_request_id = ntohl (msg->request_id);
+  op->byzantine = msg->byzantine;
+  op->byzantine_lower_bound = ntohl (msg->byzantine_lower_bound);
+  op->force_full = msg->force_full;
+  op->force_delta = msg->force_delta;
+  op->symmetric = msg->symmetric;
+  op->rtt_bandwidth_tradeoff = msg->bandwidth_latency_tradeoff;
+  op->ibf_bucket_number_factor = msg->ibf_bucket_number_factor;
+  op->ibf_number_buckets_per_element = msg->ibf_number_of_buckets_per_element;
+  op->byzantine_upper_bound = msg->byzantine_upper_bond;
+  /* create hashmap for message control */
+  op->message_control_flow = GNUNET_CONTAINER_multihashmap_create (32,
+                                                                   GNUNET_NO);
+  op->inquiries_sent = GNUNET_CONTAINER_multihashmap_create (32,GNUNET_NO);
 
 #if MEASURE_PERFORMANCE
-    /* load config */
+  /* load config */
   load_config (op);
 #endif
 
-    /* Advance generation values, so that future mutations do not
-       interfer with the running operation. */
-    op->generation_created = set->current_generation;
-    advance_generation (set);
-    GNUNET_assert (NULL == op->se);
-
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "accepting set union operation\n");
-    GNUNET_STATISTICS_update (_GSS_statistics,
-                              "# of accepted union operations",
-                              1,
-                              GNUNET_NO);
-    GNUNET_STATISTICS_update (_GSS_statistics,
-                              "# of total union operations",
-                              1,
-                              GNUNET_NO);
-    {
-        struct MultiStrataEstimator *se;
-        struct GNUNET_MQ_Envelope *ev;
-        struct StrataEstimatorMessage *strata_msg;
-        char *buf;
-        size_t len;
-        uint16_t type;
-
-        op->se = strata_estimator_dup (op->set->se);
-        op->demanded_hashes = GNUNET_CONTAINER_multihashmap_create (32,
-                                                                    GNUNET_NO);
-        op->salt_receive = (op->peer_site + 1) % 2;
-        op->salt_send = op->peer_site; // FIXME?????
-        initialize_key_to_element (op);
-        op->initial_size = GNUNET_CONTAINER_multihashmap32_size (
-                op->key_to_element);
-
-        /* kick off the operation */
-        se = op->se;
-
-        uint8_t se_count = 1;
-        if (op->initial_size > 0)
-        {
-            GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
-                                                   &
-                                                           
determinate_avg_element_size_iterator,
-                                                   op);
-            se_count = determine_strata_count (
-                    op->total_elements_size_local / op->initial_size,
-                    op->initial_size);
-        }
-        buf = GNUNET_malloc (se->stratas[0]->strata_count * IBF_BUCKET_SIZE
-                             * ((SE_IBFS_TOTAL_SIZE / 8) * se_count));
-        len = strata_estimator_write (se,
-                                      SE_IBFS_TOTAL_SIZE,
-                                      se_count,
-                                      buf);
+  /* Advance generation values, so that future mutations do not
+     interfer with the running operation. */
+  op->generation_created = set->current_generation;
+  advance_generation (set);
+  GNUNET_assert (NULL == op->se);
+
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "accepting set union operation\n");
+  GNUNET_STATISTICS_update (_GSS_statistics,
+                            "# of accepted union operations",
+                            1,
+                            GNUNET_NO);
+  GNUNET_STATISTICS_update (_GSS_statistics,
+                            "# of total union operations",
+                            1,
+                            GNUNET_NO);
+  {
+    struct MultiStrataEstimator *se;
+    struct GNUNET_MQ_Envelope *ev;
+    struct StrataEstimatorMessage *strata_msg;
+    char *buf;
+    size_t len;
+    uint16_t type;
+
+    op->se = strata_estimator_dup (op->set->se);
+    op->demanded_hashes = GNUNET_CONTAINER_multihashmap_create (32,
+                                                                GNUNET_NO);
+    op->salt_receive = (op->peer_site + 1) % 2;
+    op->salt_send = op->peer_site;     // FIXME?????
+    initialize_key_to_element (op);
+    op->initial_size = GNUNET_CONTAINER_multihashmap32_size (
+      op->key_to_element);
+
+    /* kick off the operation */
+    se = op->se;
+
+    uint8_t se_count = 1;
+    if (op->initial_size > 0)
+    {
+      GNUNET_CONTAINER_multihashmap_iterate (op->set->content->elements,
+                                             &
+                                             
determinate_avg_element_size_iterator,
+                                             op);
+      se_count = determine_strata_count (
+        op->total_elements_size_local / op->initial_size,
+        op->initial_size);
+    }
+    buf = GNUNET_malloc (se->stratas[0]->strata_count * IBF_BUCKET_SIZE
+                         * ((SE_IBFS_TOTAL_SIZE / 8) * se_count));
+    len = strata_estimator_write (se,
+                                  SE_IBFS_TOTAL_SIZE,
+                                  se_count,
+                                  buf);
 #if MEASURE_PERFORMANCE
-        perf_store.se.sent += 1;
+    perf_store.se.sent += 1;
     perf_store.se.sent_var_bytes += len;
 #endif
 
-        if (len < se->stratas[0]->strata_count * IBF_BUCKET_SIZE
-                  * SE_IBFS_TOTAL_SIZE)
-            type = GNUNET_MESSAGE_TYPE_SETU_P2P_SEC;
-        else
-            type = GNUNET_MESSAGE_TYPE_SETU_P2P_SE;
-        ev = GNUNET_MQ_msg_extra (strata_msg,
-                                  len,
-                                  type);
-        GNUNET_memcpy (&strata_msg[1],
-                       buf,
-                       len);
-        GNUNET_free (buf);
-        strata_msg->set_size
-                = GNUNET_htonll (GNUNET_CONTAINER_multihashmap_size (
-                op->set->content->elements));
-        strata_msg->se_count = se_count;
-        GNUNET_MQ_send (op->mq,
-                        ev);
-        op->phase = PHASE_EXPECT_IBF;
-    }
-    /* Now allow CADET to continue, as we did not do this in
-     #handle_incoming_msg (as we wanted to first see if the
-       local client would accept the request). */
-    GNUNET_CADET_receive_done (op->channel);
-    GNUNET_SERVICE_client_continue (cs->client);
+    if (len < se->stratas[0]->strata_count * IBF_BUCKET_SIZE
+        * SE_IBFS_TOTAL_SIZE)
+      type = GNUNET_MESSAGE_TYPE_SETU_P2P_SEC;
+    else
+      type = GNUNET_MESSAGE_TYPE_SETU_P2P_SE;
+    ev = GNUNET_MQ_msg_extra (strata_msg,
+                              len,
+                              type);
+    GNUNET_memcpy (&strata_msg[1],
+                   buf,
+                   len);
+    GNUNET_free (buf);
+    strata_msg->set_size
+      = GNUNET_htonll (GNUNET_CONTAINER_multihashmap_size (
+                         op->set->content->elements));
+    strata_msg->se_count = se_count;
+    GNUNET_MQ_send (op->mq,
+                    ev);
+    op->phase = PHASE_EXPECT_IBF;
+  }
+  /* Now allow CADET to continue, as we did not do this in
+   #handle_incoming_msg (as we wanted to first see if the
+     local client would accept the request). */
+  GNUNET_CADET_receive_done (op->channel);
+  GNUNET_SERVICE_client_continue (cs->client);
 }
 
 
@@ -5227,22 +5226,22 @@ handle_client_accept (void *cls,
 static void
 shutdown_task (void *cls)
 {
-    /* Delay actual shutdown to allow service to disconnect clients */
-    in_shutdown = GNUNET_YES;
-    if (0 == num_clients)
+  /* Delay actual shutdown to allow service to disconnect clients */
+  in_shutdown = GNUNET_YES;
+  if (0 == num_clients)
+  {
+    if (NULL != cadet)
     {
-        if (NULL != cadet)
-        {
-            GNUNET_CADET_disconnect (cadet);
-            cadet = NULL;
-        }
+      GNUNET_CADET_disconnect (cadet);
+      cadet = NULL;
     }
-    GNUNET_STATISTICS_destroy (_GSS_statistics,
-                               GNUNET_YES);
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "handled shutdown request\n");
+  }
+  GNUNET_STATISTICS_destroy (_GSS_statistics,
+                             GNUNET_YES);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "handled shutdown request\n");
 #if MEASURE_PERFORMANCE
-    calculate_perf_store ();
+  calculate_perf_store ();
 #endif
 }
 
@@ -5260,21 +5259,21 @@ run (void *cls,
      const struct GNUNET_CONFIGURATION_Handle *cfg,
      struct GNUNET_SERVICE_Handle *service)
 {
-    /* FIXME: need to modify SERVICE (!) API to allow
-       us to run a shutdown task *after* clients were
-       forcefully disconnected! */
-    GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
-                                   NULL);
-    _GSS_statistics = GNUNET_STATISTICS_create ("setu",
-                                                cfg);
-    cadet = GNUNET_CADET_connect (cfg);
-    if (NULL == cadet)
-    {
-        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                    _ ("Could not connect to CADET service\n"));
-        GNUNET_SCHEDULER_shutdown ();
-        return;
-    }
+  /* FIXME: need to modify SERVICE (!) API to allow
+     us to run a shutdown task *after* clients were
+     forcefully disconnected! */
+  GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
+                                 NULL);
+  _GSS_statistics = GNUNET_STATISTICS_create ("setu",
+                                              cfg);
+  cadet = GNUNET_CADET_connect (cfg);
+  if (NULL == cadet)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                _ ("Could not connect to CADET service\n"));
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
 }
 
 
@@ -5282,41 +5281,41 @@ run (void *cls,
  * Define "main" method using service macro.
  */
 GNUNET_SERVICE_MAIN (
-        "set",
-        GNUNET_SERVICE_OPTION_NONE,
-        &run,
-        &client_connect_cb,
-        &client_disconnect_cb,
-        NULL,
-        GNUNET_MQ_hd_fixed_size (client_accept,
-                                 GNUNET_MESSAGE_TYPE_SETU_ACCEPT,
-                struct GNUNET_SETU_AcceptMessage,
-                NULL),
-        GNUNET_MQ_hd_var_size (client_set_add,
-                               GNUNET_MESSAGE_TYPE_SETU_ADD,
-                struct GNUNET_SETU_ElementMessage,
-                NULL),
-        GNUNET_MQ_hd_fixed_size (client_create_set,
-                                 GNUNET_MESSAGE_TYPE_SETU_CREATE,
-                struct GNUNET_SETU_CreateMessage,
-                NULL),
-        GNUNET_MQ_hd_var_size (client_evaluate,
-                               GNUNET_MESSAGE_TYPE_SETU_EVALUATE,
-                struct GNUNET_SETU_EvaluateMessage,
-                NULL),
-        GNUNET_MQ_hd_fixed_size (client_listen,
-                                 GNUNET_MESSAGE_TYPE_SETU_LISTEN,
-                struct GNUNET_SETU_ListenMessage,
-                NULL),
-        GNUNET_MQ_hd_fixed_size (client_reject,
-                                 GNUNET_MESSAGE_TYPE_SETU_REJECT,
-                struct GNUNET_SETU_RejectMessage,
-                NULL),
-        GNUNET_MQ_hd_fixed_size (client_cancel,
-                                 GNUNET_MESSAGE_TYPE_SETU_CANCEL,
-                struct GNUNET_SETU_CancelMessage,
-                NULL),
-        GNUNET_MQ_handler_end ());
+  "set",
+  GNUNET_SERVICE_OPTION_NONE,
+  &run,
+  &client_connect_cb,
+  &client_disconnect_cb,
+  NULL,
+  GNUNET_MQ_hd_fixed_size (client_accept,
+                           GNUNET_MESSAGE_TYPE_SETU_ACCEPT,
+                           struct GNUNET_SETU_AcceptMessage,
+                           NULL),
+  GNUNET_MQ_hd_var_size (client_set_add,
+                         GNUNET_MESSAGE_TYPE_SETU_ADD,
+                         struct GNUNET_SETU_ElementMessage,
+                         NULL),
+  GNUNET_MQ_hd_fixed_size (client_create_set,
+                           GNUNET_MESSAGE_TYPE_SETU_CREATE,
+                           struct GNUNET_SETU_CreateMessage,
+                           NULL),
+  GNUNET_MQ_hd_var_size (client_evaluate,
+                         GNUNET_MESSAGE_TYPE_SETU_EVALUATE,
+                         struct GNUNET_SETU_EvaluateMessage,
+                         NULL),
+  GNUNET_MQ_hd_fixed_size (client_listen,
+                           GNUNET_MESSAGE_TYPE_SETU_LISTEN,
+                           struct GNUNET_SETU_ListenMessage,
+                           NULL),
+  GNUNET_MQ_hd_fixed_size (client_reject,
+                           GNUNET_MESSAGE_TYPE_SETU_REJECT,
+                           struct GNUNET_SETU_RejectMessage,
+                           NULL),
+  GNUNET_MQ_hd_fixed_size (client_cancel,
+                           GNUNET_MESSAGE_TYPE_SETU_CANCEL,
+                           struct GNUNET_SETU_CancelMessage,
+                           NULL),
+  GNUNET_MQ_handler_end ());
 
 
 /* end of gnunet-service-setu.c */
diff --git a/src/setu/gnunet-service-setu_protocol.h 
b/src/setu/gnunet-service-setu_protocol.h
index 096d8b09b..a80b343da 100644
--- a/src/setu/gnunet-service-setu_protocol.h
+++ b/src/setu/gnunet-service-setu_protocol.h
@@ -220,25 +220,25 @@ struct StrataEstimatorMessage
  */
 struct TransmitFullMessage
 {
-    /**
-     * Type: #GNUNET_MESSAGE_TYPE_SETU_P2P_SEND_FULL
-     */
-    struct GNUNET_MessageHeader header;
-
-    /**
-     * Remote set difference calculated with strata estimator
-     */
-    uint32_t remote_set_difference;
-
-    /**
-     * Total remote set size
-     */
-    uint32_t remote_set_size;
-
-    /**
-     *  Local set difference calculated with strata estimator
-     */
-    uint32_t local_set_difference;
+  /**
+   * Type: #GNUNET_MESSAGE_TYPE_SETU_P2P_SEND_FULL
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * Remote set difference calculated with strata estimator
+   */
+  uint32_t remote_set_difference;
+
+  /**
+   * Total remote set size
+   */
+  uint32_t remote_set_size;
+
+  /**
+   *  Local set difference calculated with strata estimator
+   */
+  uint32_t local_set_difference;
 
 };
 
diff --git a/src/setu/gnunet-service-setu_strata_estimator.h 
b/src/setu/gnunet-service-setu_strata_estimator.h
index b25a15c74..4871a7fcd 100644
--- a/src/setu/gnunet-service-setu_strata_estimator.h
+++ b/src/setu/gnunet-service-setu_strata_estimator.h
@@ -64,15 +64,15 @@ struct StrataEstimator
 
 struct MultiStrataEstimator
 {
-    /**
-     * Array of strata estimators
-     */
-    struct StrataEstimator **stratas;
+  /**
+   * Array of strata estimators
+   */
+  struct StrataEstimator **stratas;
 
-    /**
-     * Number of strata estimators in struct
-     */
-     uint8_t size;
+  /**
+   * Number of strata estimators in struct
+   */
+  uint8_t size;
 
 };
 
@@ -84,8 +84,8 @@ struct MultiStrataEstimator
  */
 
 uint8_t
-determine_strata_count(uint64_t avg_element_size,
-                            uint64_t element_count);
+determine_strata_count (uint64_t avg_element_size,
+                        uint64_t element_count);
 
 
 /**
diff --git a/src/setu/ibf.h b/src/setu/ibf.h
index 49c8c4ee6..5628405dc 100644
--- a/src/setu/ibf.h
+++ b/src/setu/ibf.h
@@ -93,19 +93,19 @@ struct InvertibleBloomFilter
    */
   uint8_t hash_num;
 
-    /**
-   * If an IBF is decoded this count stores how many
-   * elements are on the local site. This is used
-   * to estimate the set difference on a site
-   */
-    int local_decoded_count;
+  /**
+ * If an IBF is decoded this count stores how many
+ * elements are on the local site. This is used
+ * to estimate the set difference on a site
+ */
+  int local_decoded_count;
 
-    /**
-   * If an IBF is decoded this count stores how many
-   * elements are on the remote site. This is used
-   * to estimate the set difference on a site
-   */
-    int remote_decoded_count;
+  /**
+ * If an IBF is decoded this count stores how many
+ * elements are on the remote site. This is used
+ * to estimate the set difference on a site
+ */
+  int remote_decoded_count;
 
   /**
    * Xor sums of the elements' keys, used to identify the elements.
@@ -262,7 +262,7 @@ void
 ibf_destroy (struct InvertibleBloomFilter *ibf);
 
 uint8_t
-ibf_get_max_counter(struct InvertibleBloomFilter *ibf);
+ibf_get_max_counter (struct InvertibleBloomFilter *ibf);
 
 
 /**
diff --git a/src/setu/perf_setu_api.c b/src/setu/perf_setu_api.c
index 276c39924..914bd6ac6 100644
--- a/src/setu/perf_setu_api.c
+++ b/src/setu/perf_setu_api.c
@@ -190,7 +190,6 @@ start (void *cls)
 }
 
 
-
 /**
  * Generate random byte stream
  */
@@ -258,7 +257,6 @@ initRandomSets (int overlap, int set1_size, int set2_size, 
int
 }
 
 
-
 /**
  * Function run on timeout.
  *
@@ -401,15 +399,18 @@ run_petf_thread (int total_runs)
   {
     for (int id = 0; id < core_count; id++)
     {
-        if(processed >= total_runs) break;
-
-        if ((child_pid = fork()) == 0) {
-            perf_thread();
-            exit(0);
-        }
-        processed += 1;
+      if (processed >= total_runs)
+        break;
+
+      if ((child_pid = fork ()) == 0)
+      {
+        perf_thread ();
+        exit (0);
+      }
+      processed += 1;
     }
-    while ((wpid = wait(&status)) > 0);
+    while ((wpid = wait (&status)) > 0)
+      ;
   }
 }
 
@@ -432,27 +433,27 @@ execute_perf ()
       float x = out_ctr * base;
       char factor[10];
       char *buffer = gcvt (x, 4, factor);
-      setu_cfg = GNUNET_CONFIGURATION_create();
-      GNUNET_CONFIGURATION_set_value_string(setu_cfg, "IBF",
-                                            "BUCKET_NUMBER_FACTOR",
-                                            buffer);                       // 
Factor default=4
-      GNUNET_CONFIGURATION_set_value_number(setu_cfg, "IBF",
-                                            "NUMBER_PER_BUCKET", 3);           
            // K default=4
-      GNUNET_CONFIGURATION_set_value_string(setu_cfg, "PERFORMANCE",
-                                            "TRADEOFF", "2");                  
             // default=0.25
-      GNUNET_CONFIGURATION_set_value_string(setu_cfg, "PERFORMANCE",
-                                            "MAX_SET_DIFF_FACTOR_DIFFERENTIAL",
-                                            "20000");     // default=0.25
-      GNUNET_CONFIGURATION_set_value_number(setu_cfg, "BOUNDARIES",
-                                            "UPPER_ELEMENT", 5000);
-
-
-      if (GNUNET_OK != GNUNET_CONFIGURATION_write(setu_cfg, "perf_setu.conf"))
-          GNUNET_log(
-                  GNUNET_ERROR_TYPE_ERROR,
-                  _("Failed to write subsystem default identifier map'.\n"));
-      run_petf_thread(101000);
-  }
+      setu_cfg = GNUNET_CONFIGURATION_create ();
+      GNUNET_CONFIGURATION_set_value_string (setu_cfg, "IBF",
+                                             "BUCKET_NUMBER_FACTOR",
+                                             buffer);                      // 
Factor default=4
+      GNUNET_CONFIGURATION_set_value_number (setu_cfg, "IBF",
+                                             "NUMBER_PER_BUCKET", 3);          
            // K default=4
+      GNUNET_CONFIGURATION_set_value_string (setu_cfg, "PERFORMANCE",
+                                             "TRADEOFF", "2");                 
             // default=0.25
+      GNUNET_CONFIGURATION_set_value_string (setu_cfg, "PERFORMANCE",
+                                             
"MAX_SET_DIFF_FACTOR_DIFFERENTIAL",
+                                             "20000");    // default=0.25
+      GNUNET_CONFIGURATION_set_value_number (setu_cfg, "BOUNDARIES",
+                                             "UPPER_ELEMENT", 5000);
+
+
+      if (GNUNET_OK != GNUNET_CONFIGURATION_write (setu_cfg, "perf_setu.conf"))
+        GNUNET_log (
+          GNUNET_ERROR_TYPE_ERROR,
+          _ ("Failed to write subsystem default identifier map'.\n"));
+      run_petf_thread (101000);
+    }
 
   }
   return;
diff --git a/src/setu/setu.h b/src/setu/setu.h
index 32b294197..7b606f12c 100644
--- a/src/setu/setu.h
+++ b/src/setu/setu.h
@@ -123,29 +123,29 @@ struct GNUNET_SETU_AcceptMessage
   uint32_t byzantine_lower_bound;
 
 
-    /**
-     * Upper bound for the set size, used only when
-     * byzantine mode is enabled.
-     */
-    uint64_t byzantine_upper_bond;
-
-    /**
-     * Bandwidth latency tradeoff determines how much bytes a single RTT is
-     * worth, which is a performance setting
-     */
-    uint64_t bandwidth_latency_tradeoff;
-
-    /**
-    * The factor determines the number of buckets an IBF has which is
-    * multiplied by the estimated setsize default: 2
-    */
-    uint64_t ibf_bucket_number_factor;
-
-    /**
-    * This setting determines to how many IBF buckets an single elements
-    * is mapped to.
-    */
-    uint64_t ibf_number_of_buckets_per_element;
+  /**
+   * Upper bound for the set size, used only when
+   * byzantine mode is enabled.
+   */
+  uint64_t byzantine_upper_bond;
+
+  /**
+   * Bandwidth latency tradeoff determines how much bytes a single RTT is
+   * worth, which is a performance setting
+   */
+  uint64_t bandwidth_latency_tradeoff;
+
+  /**
+  * The factor determines the number of buckets an IBF has which is
+  * multiplied by the estimated setsize default: 2
+  */
+  uint64_t ibf_bucket_number_factor;
+
+  /**
+  * This setting determines to how many IBF buckets an single elements
+  * is mapped to.
+  */
+  uint64_t ibf_number_of_buckets_per_element;
 
 };
 
@@ -255,25 +255,25 @@ struct GNUNET_SETU_EvaluateMessage
    * Upper bound for the set size, used only when
    * byzantine mode is enabled.
    */
-   uint64_t byzantine_upper_bond;
-
-   /**
-    * Bandwidth latency tradeoff determines how much bytes a single RTT is
-    * worth, which is a performance setting
-    */
-    uint64_t bandwidth_latency_tradeoff;
-
-    /**
-    * The factor determines the number of buckets an IBF has which is
-    * multiplied by the estimated setsize default: 2
-    */
-    uint64_t ibf_bucket_number_factor;
-
-    /**
-    * This setting determines to how many IBF buckets an single elements
-    * is mapped to.
-    */
-    uint64_t ibf_number_of_buckets_per_element;
+  uint64_t byzantine_upper_bond;
+
+  /**
+   * Bandwidth latency tradeoff determines how much bytes a single RTT is
+   * worth, which is a performance setting
+   */
+  uint64_t bandwidth_latency_tradeoff;
+
+  /**
+  * The factor determines the number of buckets an IBF has which is
+  * multiplied by the estimated setsize default: 2
+  */
+  uint64_t ibf_bucket_number_factor;
+
+  /**
+  * This setting determines to how many IBF buckets an single elements
+  * is mapped to.
+  */
+  uint64_t ibf_number_of_buckets_per_element;
 
   /* rest: context message, that is, application-specific
      message to convince listener to pick up */

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