feat: boostrap hicn 22.02

The current patch provides several new features, improvements,
bug fixes and also complete rewrite of entire components.

- lib
The hicn packet parser has been improved with a new packet
format fully based on UDP. The TCP header is still temporarily
supported but the UDP header will replace completely the new hicn
packet format. Improvements have been made to make sure every
packet parsing operation is made via this library. The current
new header can be used as header between the payload and the
UDP header or as trailer in the UDP surplus area to be tested
when UDP options will start to be used.

- hicn-light
The portable packet forwarder has been completely rewritten from
scratch with the twofold objective to improve performance and
code size but  also to drop dependencies such as libparc which is
now removed by the current implementation.

- hicn control
the control library is the agent that is used to program the
packet forwarders via their binary API. This component has
benefited from significant improvements in terms of interaction
model which is now event driven and more robust to failures.

- VPP plugin has been updated to support VPP 22.02

- transport
Major improvement have been made to the RTC protocol, to the
support of IO modules and to the security sub system. Signed
manifests are the default data authenticity and integrity framework.
Confidentiality can be enabled by sharing the encryption key to the
prod/cons layer. The library has been tested with group key based
applications such as broadcast/multicast and real-time on-line
meetings with trusted server keys or MLS.

- testing
Unit testing has been introduced using GoogleTest. One third of
the code base is covered by unit testing with priority on
critical features. Functional testing has also been introduce
using Docker, linux bridging and Robot Framework to define
test with Less Code techniques to facilitate the extension
of the coverage.

Co-authored-by: Mauro Sardara <msardara@cisco.com>
Co-authored-by: Jordan Augé <jordan.auge+fdio@cisco.com>
Co-authored-by: Michele Papalini <micpapal@cisco.com>
Co-authored-by: Angelo Mantellini <manangel@cisco.com>
Co-authored-by: Jacques Samain <jsamain@cisco.com>
Co-authored-by: Olivier Roques <oroques+fdio@cisco.com>
Co-authored-by: Enrico Loparco <eloparco@cisco.com>
Co-authored-by: Giulio Grassi <gigrassi@cisco.com>

Change-Id: I75d0ef70f86d921e3ef503c99271216ff583c215
Signed-off-by: Luca Muscariello <muscariello@ieee.org>
Signed-off-by: Mauro Sardara <msardara@cisco.com>

1 files changed, 0 insertions, 894 deletions

diff --git a/hicn-light/src/hicn/processor/fibEntry.c b/hicn-light/src/hicn/processor/fibEntry.c
deleted file mode 100644
index 00e8dfa11..000000000
--- a/hicn-light/src/hicn/processor/fibEntry.c
+++ /dev/null
@@ -1,894 +0,0 @@
-/*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <hicn/hicn-light/config.h>
-#include <stdio.h>
-
-#include <hicn/core/numberSet.h>
-#include <hicn/processor/fibEntry.h>
-
-#include <hicn/core/nameBitvector.h>
-
-#include <hicn/strategies/loadBalancer.h>
-#include <hicn/strategies/lowLatency.h>
-#include <hicn/strategies/rnd.h>
-#include <hicn/strategies/strategyImpl.h>
-#ifdef WITH_MAPME
-#include <parc/algol/parc_HashMap.h>
-#include <hicn/core/ticks.h>
-#endif /* WITH_MAPME */
-
-#include <parc/algol/parc_Memory.h>
-#include <parc/assert/parc_Assert.h>
-
-#include <hicn/utils/commands.h>
-#include <hicn/core/connectionState.h>
-
-#ifdef WITH_POLICY
-#include <hicn/core/forwarder.h>
-#include <hicn/policy.h>
-
-#ifdef WITH_MAPME
-#include <hicn/core/mapme.h>
-#endif /* WITH_MAPME */
-
-#define ALPHA 0.5
-
-#endif /* WITH_POLICY */
-
-struct fib_entry {
-  Name *name;
-  unsigned refcount;
-  StrategyImpl *fwdStrategy;
-#ifdef WITH_POLICY
-  NumberSet *nexthops;
-  const Forwarder * forwarder;
-  hicn_policy_t policy;
-  policy_counters_t policy_counters;
-//  NumberSet *available_nexthops;
-#ifdef WITH_MAPME
-  /* In case of no multipath, this stores the previous decision taken by policy */
-#endif /* WITH_MAPME */
-#endif /* WITH_POLICY */
-#ifdef WITH_MAPME
-  NumberSet * previous_nexthops;
-  const void *userDataOwner;
-  void *userData;
-  void (*userDataRelease)(const void *owner, void **userData);
-#endif /* WITH_MAPME */
-};
-
-#ifdef WITH_POLICY
-FibEntry *fibEntry_Create(Name *name, strategy_type fwdStrategy, const Forwarder * forwarder) {
-#else
-FibEntry *fibEntry_Create(Name *name, strategy_type fwdStrategy) {
-#endif /* WITH_POLICY */
-  FibEntry *fibEntry = parcMemory_AllocateAndClear(sizeof(FibEntry));
-  parcAssertNotNull(fibEntry, "parcMemory_AllocateAndClear(%zu) returned NULL",
-                    sizeof(FibEntry));
-  fibEntry->name = name_Acquire(name);
-
-  switch (fwdStrategy) {
-    case SET_STRATEGY_LOADBALANCER:
-      fibEntry->fwdStrategy = strategyLoadBalancer_Create();
-      break;
-
-    case SET_STRATEGY_RANDOM:
-      fibEntry->fwdStrategy = strategyRnd_Create();
-
-    case SET_STRATEGY_LOW_LATENCY:
-      fibEntry->fwdStrategy = strategyLowLatency_Create();
-      break;
-
-    default:
-      // LB is the default strategy
-      fwdStrategy = SET_STRATEGY_LOADBALANCER;
-      fibEntry->fwdStrategy = strategyLoadBalancer_Create();
-      break;
-  }
-
-  fibEntry->refcount = 1;
-
-#ifdef WITH_MAPME
-  fibEntry->userDataOwner = NULL;
-  fibEntry->userData = NULL;
-  fibEntry->userDataRelease = NULL;
-#endif /* WITH_MAPME */
-
-#ifdef WITH_POLICY
-  fibEntry->nexthops = numberSet_Create();
-  fibEntry->forwarder = forwarder;
-  fibEntry->policy = POLICY_NONE;
-  fibEntry->policy_counters = POLICY_COUNTERS_NONE;
-#endif /* WITH_POLICY */
-
-  if(fwdStrategy == SET_STRATEGY_LOW_LATENCY){
-    strategyLowLatency_SetStrategy(fibEntry->fwdStrategy,
-                                     fibEntry->forwarder, fibEntry,
-                                     0, NULL);
-  }
-  return fibEntry;
-}
-
-FibEntry *fibEntry_Acquire(const FibEntry *fibEntry) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-  FibEntry *copy = (FibEntry *)fibEntry;
-  copy->refcount++;
-  return copy;
-}
-
-void fibEntry_Release(FibEntry **fibEntryPtr) {
-  FibEntry *fibEntry = *fibEntryPtr;
-  parcAssertTrue(fibEntry->refcount > 0, "Illegal state: refcount is 0");
-  fibEntry->refcount--;
-  if (fibEntry->refcount == 0) {
-    name_Release(&fibEntry->name);
-    fibEntry->fwdStrategy->destroy(&(fibEntry->fwdStrategy));
-#ifdef WITH_MAPME
-    if (fibEntry->userData) {
-      fibEntry->userDataRelease(fibEntry->userDataOwner, &fibEntry->userData);
-    }
-#endif /* WITH_MAPME */
-#ifdef WITH_POLICY
-  numberSet_Release(&fibEntry->nexthops);
-#endif /* WITH_POLICY */
-    parcMemory_Deallocate((void **)&fibEntry);
-  }
-  *fibEntryPtr = NULL;
-}
-
-void fibEntry_SetStrategy(FibEntry *fibEntry, strategy_type strategy,
-                          unsigned related_prefixes_len,
-                          Name **related_prefixes) {
-  StrategyImpl *fwdStrategyImpl;
-
-  switch (strategy) {
-    case SET_STRATEGY_LOADBALANCER:
-      fwdStrategyImpl = strategyLoadBalancer_Create();
-      break;
-
-    case SET_STRATEGY_RANDOM:
-      fwdStrategyImpl = strategyRnd_Create();
-      break;
-
-    case SET_STRATEGY_LOW_LATENCY:
-      fwdStrategyImpl = strategyLowLatency_Create();
-      break;
-
-    default:
-      // LB is the default strategy
-      strategy = SET_STRATEGY_LOADBALANCER;
-      fwdStrategyImpl = strategyLoadBalancer_Create();
-      break;
-    }
-
-  if(strategy == SET_STRATEGY_LOW_LATENCY){
-    strategyLowLatency_SetStrategy(fwdStrategyImpl,
-                       fibEntry->forwarder, fibEntry,
-                       related_prefixes_len, related_prefixes);
-  }
-
-  const NumberSet *nexthops = fibEntry_GetNexthops(fibEntry);
-  unsigned size = (unsigned)fibEntry_NexthopCount(fibEntry);
-  for (unsigned i = 0; i < size; i++) {
-    fwdStrategyImpl->addNexthop(fwdStrategyImpl,
-                                numberSet_GetItem(nexthops, i));
-  }
-  fibEntry->fwdStrategy->destroy(&(fibEntry->fwdStrategy));
-  fibEntry->fwdStrategy = fwdStrategyImpl;
-}
-
-#ifdef WITH_POLICY
-
-/*
- * Update available next hops following policy update.
- */
-NumberSet *
-fibEntry_GetAvailableNextHops(const FibEntry *fibEntry, unsigned in_connection) {
-  ConnectionTable * table = forwarder_GetConnectionTable(fibEntry->forwarder);
-  NumberSet * nexthops;
-  bool dealloc_nexthops = false;
-  hicn_policy_t policy = fibEntry_GetPolicy(fibEntry);
-
-  /* Reset available next hops and start filtering */
-  NumberSet * available_nexthops = numberSet_Create();
-
-  /*
-   * Give absolute preference to local faces, with no policy, unless
-   * in_connection == ~0, which means we are searching faces on which to
-   * advertise our prefix
-   */
-  if (in_connection == ~0) {
-    /* We might advertise among all available up connections */
-    nexthops = numberSet_Create();
-    dealloc_nexthops = true;
-
-    ConnectionList * list = connectionTable_GetEntries(table);
-    for (size_t i = 0; i < connectionList_Length(list); i++) {
-      Connection *conn = connectionList_Get(list, i);
-      if (connection_IsLocal(conn))
-        continue;
-      if (connection_GetAdminState(conn) == CONNECTION_STATE_DOWN)
-        continue;
-      if (connection_GetState(conn) == CONNECTION_STATE_DOWN)
-        continue;
-      numberSet_Add(nexthops, connection_GetConnectionId(conn));
-    }
-    connectionList_Destroy(&list);
-  } else {
-    nexthops = (NumberSet*)fibEntry_GetNexthops(fibEntry);
-    for (size_t k = 0; k < numberSet_Length(nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(nexthops, k);
-      /* Filtering out ingress face */
-      if (conn_id == in_connection)
-        continue;
-      /* Filtering out DOWN faces */
-      const Connection *  conn = connectionTable_FindById(table, conn_id);
-      if (!conn)
-        continue;
-      if (connection_GetAdminState(conn) == CONNECTION_STATE_DOWN)
-        continue;
-      if (connection_GetState(conn) == CONNECTION_STATE_DOWN)
-        continue;
-      if (!connection_IsLocal(conn))
-        continue;
-      numberSet_Add(available_nexthops, conn_id);
-    }
-
-    /* Terminate selection if there are any local face available */
-    if (numberSet_Length(available_nexthops) > 0){
-      if(dealloc_nexthops){
-        numberSet_Release(&nexthops);
-      }
-      /* No filtering as all local faces are considered equivalent */
-      return available_nexthops;
-    }
-  }
-
-  for (size_t k = 0; k < numberSet_Length(nexthops); k++) {
-    unsigned conn_id = numberSet_GetItem(nexthops, k);
-    const Connection * conn;
-
-    /* Filtering out ingress face */
-    if (conn_id == in_connection)
-      continue;
-
-    /* Filtering out DOWN faces */
-    conn = connectionTable_FindById(table, conn_id);
-    if (!conn)
-      continue;
-    if (connection_GetAdminState(conn) == CONNECTION_STATE_DOWN)
-      continue;
-    if (connection_GetState(conn) == CONNECTION_STATE_DOWN)
-      continue;
-
-    /* Policy filtering : next hops */
-    if ((policy.tags[POLICY_TAG_WIRED].state == POLICY_STATE_REQUIRE) &&
-        (!connection_HasTag(conn, POLICY_TAG_WIRED)))
-      continue;
-    if ((policy.tags[POLICY_TAG_WIRED].state == POLICY_STATE_PROHIBIT) &&
-        (connection_HasTag(conn, POLICY_TAG_WIRED)))
-      continue;
-    if ((policy.tags[POLICY_TAG_WIFI].state == POLICY_STATE_REQUIRE) &&
-        (!connection_HasTag(conn, POLICY_TAG_WIFI)))
-      continue;
-    if ((policy.tags[POLICY_TAG_WIFI].state == POLICY_STATE_PROHIBIT) &&
-        (connection_HasTag(conn, POLICY_TAG_WIFI)))
-      continue;
-    if ((policy.tags[POLICY_TAG_CELLULAR].state == POLICY_STATE_REQUIRE) &&
-        (!connection_HasTag(conn, POLICY_TAG_CELLULAR)))
-      continue;
-    if ((policy.tags[POLICY_TAG_CELLULAR].state == POLICY_STATE_PROHIBIT) &&
-        (connection_HasTag(conn, POLICY_TAG_CELLULAR)))
-      continue;
-    if ((policy.tags[POLICY_TAG_TRUSTED].state == POLICY_STATE_REQUIRE) &&
-        (!connection_HasTag(conn, POLICY_TAG_TRUSTED)))
-      continue;
-    if ((policy.tags[POLICY_TAG_TRUSTED].state == POLICY_STATE_PROHIBIT) &&
-        (connection_HasTag(conn, POLICY_TAG_TRUSTED)))
-      continue;
-
-    numberSet_Add(available_nexthops, conn_id);
-  }
-
-  if(dealloc_nexthops)
-    numberSet_Release(&nexthops);
-
-  if (numberSet_Length(available_nexthops) == 0)
-    return available_nexthops;
-
-  /* We have at least one matching next hop, implement heuristic */
-
-  /*
-   * As VPN connections might trigger duplicate uses of one interface, we start
-   * by filtering out interfaces based on trust status.
-   */
-  NumberSet * filtered_nexthops = numberSet_Create();
-  if ((policy.tags[POLICY_TAG_TRUSTED].state == POLICY_STATE_REQUIRE) ||
-      (policy.tags[POLICY_TAG_TRUSTED].state == POLICY_STATE_PREFER)) {
-    /* Try to filter out NON TRUSTED faces */
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-      if (!connection_HasTag(conn, POLICY_TAG_TRUSTED))
-          continue;
-      numberSet_Add(filtered_nexthops, conn_id);
-    }
-  } else {
-      /* Try to filter out TRUSTED faces */
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-      if (connection_HasTag(conn, POLICY_TAG_TRUSTED))
-          continue;
-      numberSet_Add(filtered_nexthops, conn_id);
-    }
-  }
-  if (numberSet_Length(filtered_nexthops) > 0) {
-    numberSet_Release(&available_nexthops);
-    available_nexthops = numberSet_Create();
-    numberSet_AddSet(available_nexthops, filtered_nexthops);
-  }
-  numberSet_Release(&filtered_nexthops);
-
-  /* Other preferences */
-  if (policy.tags[POLICY_TAG_WIRED].state == POLICY_STATE_AVOID) {
-    filtered_nexthops = numberSet_Create();
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-      if (connection_HasTag(conn, POLICY_TAG_WIRED))
-          continue;
-      numberSet_Add(filtered_nexthops, conn_id);
-    }
-    if (numberSet_Length(filtered_nexthops) > 0) {
-        numberSet_Release(&available_nexthops);
-        available_nexthops = numberSet_Create();
-        numberSet_AddSet(available_nexthops, filtered_nexthops);
-    }
-    numberSet_Release(&filtered_nexthops);
-  }
-  if (policy.tags[POLICY_TAG_WIFI].state == POLICY_STATE_AVOID) {
-    filtered_nexthops = numberSet_Create();
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-      if (connection_HasTag(conn, POLICY_TAG_WIFI))
-          continue;
-      numberSet_Add(filtered_nexthops, conn_id);
-    }
-    if (numberSet_Length(filtered_nexthops) > 0) {
-        numberSet_Release(&available_nexthops);
-        available_nexthops = numberSet_Create();
-        numberSet_AddSet(available_nexthops, filtered_nexthops);
-    }
-    numberSet_Release(&filtered_nexthops);
-  }
-  if (policy.tags[POLICY_TAG_CELLULAR].state == POLICY_STATE_AVOID) {
-    filtered_nexthops = numberSet_Create();
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-      if (connection_HasTag(conn, POLICY_TAG_CELLULAR))
-          continue;
-      numberSet_Add(filtered_nexthops, conn_id);
-    }
-    if (numberSet_Length(filtered_nexthops) > 0) {
-        numberSet_Release(&available_nexthops);
-        available_nexthops = numberSet_Create();
-        numberSet_AddSet(available_nexthops, filtered_nexthops);
-    }
-    numberSet_Release(&filtered_nexthops);
-  }
-
-  if (policy.tags[POLICY_TAG_WIRED].state == POLICY_STATE_PREFER) {
-    filtered_nexthops = numberSet_Create();
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-      if (!connection_HasTag(conn, POLICY_TAG_WIRED))
-          continue;
-      numberSet_Add(filtered_nexthops, conn_id);
-    }
-    if (numberSet_Length(filtered_nexthops) > 0) {
-        numberSet_Release(&available_nexthops);
-        available_nexthops = numberSet_Create();
-        numberSet_AddSet(available_nexthops, filtered_nexthops);
-    }
-    numberSet_Release(&filtered_nexthops);
-  }
-  if (policy.tags[POLICY_TAG_WIFI].state == POLICY_STATE_PREFER) {
-    filtered_nexthops = numberSet_Create();
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-      if (!connection_HasTag(conn, POLICY_TAG_WIFI))
-          continue;
-      numberSet_Add(filtered_nexthops, conn_id);
-    }
-    if (numberSet_Length(filtered_nexthops) > 0) {
-        numberSet_Release(&available_nexthops);
-        available_nexthops = numberSet_Create();
-        numberSet_AddSet(available_nexthops, filtered_nexthops);
-    }
-    numberSet_Release(&filtered_nexthops);
-  }
-  if (policy.tags[POLICY_TAG_CELLULAR].state == POLICY_STATE_PREFER) {
-    filtered_nexthops = numberSet_Create();
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-      if (!connection_HasTag(conn, POLICY_TAG_CELLULAR))
-          continue;
-      numberSet_Add(filtered_nexthops, conn_id);
-    }
-    if (numberSet_Length(filtered_nexthops) > 0) {
-        numberSet_Release(&available_nexthops);
-        available_nexthops = numberSet_Create();
-        numberSet_AddSet(available_nexthops, filtered_nexthops);
-    }
-    numberSet_Release(&filtered_nexthops);
-  }
-
-  /* Priority */
-  NumberSet * priority_nexthops = numberSet_Create();
-
-  uint32_t max_priority = 0;
-  for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-    unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-    const Connection * conn = connectionTable_FindById(table, conn_id);
-    uint32_t priority = connection_GetPriority(conn);
-    if (priority < max_priority) {
-        continue;
-    } else if (priority == max_priority) {
-      numberSet_Add(priority_nexthops, conn_id);
-    } else { /* priority > max_priority */
-      numberSet_Release(&priority_nexthops);
-      priority_nexthops = numberSet_Create();
-      numberSet_Add(priority_nexthops, conn_id);
-      max_priority = priority;
-    }
-  }
-
-  numberSet_Release(&available_nexthops);
-
-  return priority_nexthops;
-}
-
-hicn_policy_t fibEntry_GetPolicy(const FibEntry *fibEntry) {
-  return fibEntry->policy;
-}
-
-void fibEntry_SetPolicy(FibEntry *fibEntry, hicn_policy_t policy) {
-  fibEntry->policy = policy;
-  mapme_reconsiderFibEntry(forwarder_getMapmeInstance(fibEntry->forwarder), fibEntry);
-}
-
-NumberSet *
-fibEntry_GetPreviousNextHops(const FibEntry *fibEntry)
-{
-    return fibEntry->previous_nexthops;
-}
-#endif /* WITH_POLICY */
-
-void
-fibEntry_SetPreviousNextHops(FibEntry *fibEntry, const NumberSet * nexthops)
-{
-    if (fibEntry->previous_nexthops)
-        numberSet_Release(&fibEntry->previous_nexthops);
-    fibEntry->previous_nexthops = numberSet_Create();
-    numberSet_AddSet(fibEntry->previous_nexthops, nexthops);
-}
-
-
-void fibEntry_AddNexthop(FibEntry *fibEntry, unsigned connectionId) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-#ifdef WITH_POLICY
-  if (!numberSet_Contains(fibEntry->nexthops, connectionId)) {
-    numberSet_Add(fibEntry->nexthops, connectionId);
-  }
-#endif /* WITH_POLICY */
-  fibEntry->fwdStrategy->addNexthop(fibEntry->fwdStrategy, connectionId);
-}
-
-void fibEntry_RemoveNexthopByConnectionId(FibEntry *fibEntry,
-                                          unsigned connectionId) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-#ifdef WITH_POLICY
-  if (numberSet_Contains(fibEntry->nexthops, connectionId)) {
-    numberSet_Remove(fibEntry->nexthops, connectionId);
-  }
-#endif /* WITH_POLICY */
-  fibEntry->fwdStrategy->removeNexthop(fibEntry->fwdStrategy, connectionId);
-}
-
-size_t fibEntry_NexthopCount(const FibEntry *fibEntry) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-#ifdef WITH_POLICY
-  return numberSet_Length(fibEntry->nexthops);
-#else
-  return fibEntry->fwdStrategy->countNexthops(fibEntry->fwdStrategy);
-#endif /* WITH_POLICY */
-}
-
-const NumberSet *fibEntry_GetNexthops(const FibEntry *fibEntry) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-#ifdef WITH_POLICY
-  return fibEntry->nexthops;
-#else
-  return fibEntry->fwdStrategy->returnNexthops(fibEntry->fwdStrategy);
-#endif /* WITH_POLICY */
-}
-
-const NumberSet *fibEntry_GetNexthopsFromForwardingStrategy(
-#ifdef WITH_POLICY
-    FibEntry *fibEntry, const Message *interestMessage, bool is_retransmission) {
-#else
-    const FibEntry *fibEntry, const Message *interestMessage) {
-#endif /* WITH_POLICY */
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-#ifdef WITH_POLICY
-  ConnectionTable * table = forwarder_GetConnectionTable(fibEntry->forwarder);
-  unsigned in_connection = message_GetIngressConnectionId(interestMessage);
-
-  hicn_policy_t policy = fibEntry_GetPolicy(fibEntry);
-
-  NumberSet * out;
-
-  /* Filtering */
-  NumberSet * available_nexthops = fibEntry_GetAvailableNextHops(fibEntry, in_connection);
-  if (numberSet_Length(available_nexthops) == 0) {
-    numberSet_Release(&available_nexthops);
-    out = numberSet_Create();
-    return out;
-  }
-
-  /*
-   * Update statistics about loss rates. We only detect losses upon
-   * retransmissions, and assume for the computation that the candidate set of
-   * output faces is the same as previously (i.e. does not take into account
-   * event such as face up/down, policy update, etc. Otherwise we would need to
-   * know what was the previous choice !
-   */
-  if (is_retransmission) {
-    for (size_t k = 0; k < numberSet_Length(available_nexthops); k++) {
-      unsigned conn_id = numberSet_GetItem(available_nexthops, k);
-      const Connection * conn = connectionTable_FindById(table, conn_id);
-
-      if (connection_HasTag(conn, POLICY_TAG_WIRED))
-        fibEntry->policy_counters.wired.num_losses++;
-      if (connection_HasTag(conn, POLICY_TAG_WIFI))
-        fibEntry->policy_counters.wifi.num_losses++;
-      if (connection_HasTag(conn, POLICY_TAG_CELLULAR))
-        fibEntry->policy_counters.cellular.num_losses++;
-      fibEntry->policy_counters.all.num_losses++;
-    }
-  }
-
-  /*
-   * NOTE: We might want to call a forwarding strategy even with no nexthop to
-   * take a fallback decision.
-   */
-  if (numberSet_Length(available_nexthops) == 0) {
-    out = numberSet_Create();
-  } else {
-    /* Multipath */
-    if ((policy.tags[POLICY_TAG_MULTIPATH].state != POLICY_STATE_PROHIBIT) &&
-        (policy.tags[POLICY_TAG_MULTIPATH].state != POLICY_STATE_AVOID)) {
-      out = fibEntry->fwdStrategy->lookupNexthop(fibEntry->fwdStrategy, available_nexthops,
-          interestMessage);
-    } else {
-      unsigned nexthop = numberSet_GetItem(available_nexthops, 0);
-      out = numberSet_Create();
-      numberSet_Add(out, nexthop);
-    }
-  }
-
-  numberSet_Release(&available_nexthops);
-
-  return out;
-#else
-  return fibEntry->fwdStrategy->lookupNexthop(fibEntry->fwdStrategy,
-          interestMessage);
-#endif /* WITH_POLICY */
-}
-
-#ifdef WITH_POLICY
-void fibEntry_ReceiveObjectMessage(FibEntry *fibEntry,
-#else
-void fibEntry_ReceiveObjectMessage(const FibEntry *fibEntry,
-#endif /* WITH_POLICY */
-                                   const NumberSet *egressId,
-                                   const Message *objectMessage,
-                                   Ticks pitEntryCreation,
-                                   Ticks objReception) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-
-#ifdef WITH_POLICY
-  ConnectionTable * table = forwarder_GetConnectionTable(fibEntry->forwarder);
-
-  /* Update statistic counters : */
-
-  size_t msg_size = message_Length(objectMessage);
-  Ticks rtt = objReception - pitEntryCreation;
-
-  for (unsigned i = 0; i < numberSet_Length(egressId); i++) {
-    unsigned conn_id = numberSet_GetItem(egressId, i);
-    const Connection * conn = connectionTable_FindById(table, conn_id);
-    if (!conn)
-      continue;
-    if (connection_HasTag(conn, POLICY_TAG_WIRED)) {
-      fibEntry->policy_counters.wired.num_packets++;
-      fibEntry->policy_counters.wired.num_bytes += (uint32_t)msg_size;
-      fibEntry->policy.stats.wired.latency = (float) (\
-                      ALPHA       * fibEntry->policy.stats.wired.latency + \
-                      (1 - ALPHA) * (double)rtt);
-      fibEntry->policy_counters.wired.latency_idle = 0;
-    }
-    if (connection_HasTag(conn, POLICY_TAG_WIFI)) {
-      fibEntry->policy_counters.wifi.num_packets++;
-      fibEntry->policy_counters.wifi.num_bytes += (uint32_t)msg_size;
-      fibEntry->policy.stats.wifi.latency = (float)(\
-                      ALPHA       * fibEntry->policy.stats.wifi.latency + \
-                      (1 - ALPHA) * (double)rtt);
-      fibEntry->policy_counters.wifi.latency_idle = 0;
-
-    }
-    if (connection_HasTag(conn, POLICY_TAG_CELLULAR)) {
-      fibEntry->policy_counters.cellular.num_packets++;
-      fibEntry->policy_counters.cellular.num_bytes += (uint32_t)msg_size;
-      fibEntry->policy.stats.cellular.latency = (float)(\
-                      ALPHA       * fibEntry->policy.stats.cellular.latency + \
-                      (1 - ALPHA) * (double)rtt);
-      fibEntry->policy_counters.cellular.latency_idle = 0;
-    }
-  }
-
-  fibEntry->policy.stats.all.latency = (float)(\
-                    ALPHA       * fibEntry->policy.stats.all.latency + \
-                    (1 - ALPHA) * (double)rtt);
-  fibEntry->policy_counters.all.latency_idle = 0;
-
-  fibEntry->policy_counters.all.num_packets++;
-  fibEntry->policy_counters.all.num_bytes += (uint32_t)msg_size;
-
-#endif /* WITH_POLICY */
-
-  fibEntry->fwdStrategy->receiveObject(fibEntry->fwdStrategy, egressId,
-                                       objectMessage, pitEntryCreation, objReception);
-}
-
-#ifdef WITH_POLICY
-void fibEntry_OnTimeout(FibEntry *fibEntry, const NumberSet *egressId) {
-#else
-void fibEntry_OnTimeout(const FibEntry *fibEntry, const NumberSet *egressId) {
-#endif /* WITH_POLICY */
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-
-#ifdef WITH_POLICY
-
-  ConnectionTable * table = forwarder_GetConnectionTable(fibEntry->forwarder);
-
-  for (unsigned i = 0; i < numberSet_Length(egressId); i++) {
-    unsigned conn_id = numberSet_GetItem(egressId, i);
-    const Connection * conn = connectionTable_FindById(table, conn_id);
-    if (!conn)
-      continue;
-    if (connection_HasTag(conn, POLICY_TAG_WIRED)) {
-      fibEntry->policy_counters.wired.num_losses++;
-    }
-    if (connection_HasTag(conn, POLICY_TAG_WIFI)) {
-      fibEntry->policy_counters.wifi.num_losses++;
-    }
-    if (connection_HasTag(conn, POLICY_TAG_CELLULAR)) {
-      fibEntry->policy_counters.cellular.num_losses++;
-    }
-  }
-
-  fibEntry->policy_counters.all.num_losses++;
-
-#endif /* WITH_POLICY */
-
-  fibEntry->fwdStrategy->onTimeout(fibEntry->fwdStrategy, egressId);
-}
-
-#ifdef WITH_POLICY
-void fibEntry_UpdateStats(FibEntry *fibEntry, uint64_t now) {
-  double throughput;
-  double loss_rate;
-
-  if (now == fibEntry->policy_counters.last_update)
-      return ;
-
-  /* WIRED */
-
-  /*  a) throughput */
-  if (fibEntry->policy_counters.wired.num_bytes > 0) {
-    throughput = (float)(fibEntry->policy_counters.wired.num_bytes / \
-          (now - fibEntry->policy_counters.last_update)) ;
-    throughput = throughput * 8 / 1024;
-    if (throughput < 0)
-        throughput = 0;
-  } else {
-    throughput = 0;
-  }
-  fibEntry->policy.stats.wired.throughput = (float)(\
-        ALPHA     * fibEntry->policy.stats.wired.throughput + \
-        (1-ALPHA) * throughput);
-
-  /* b) loss rate */
-  if ((fibEntry->policy_counters.wired.num_losses > 0) && \
-          (fibEntry->policy_counters.wired.num_packets > 0)){
-      loss_rate = fibEntry->policy_counters.wired.num_losses / \
-            fibEntry->policy_counters.wired.num_packets;
-      loss_rate *= 100;
-  } else {
-      loss_rate = 0;
-  }
-  fibEntry->policy.stats.wired.loss_rate = (float)(\
-        ALPHA     * fibEntry->policy.stats.wired.loss_rate + \
-        (1-ALPHA) * loss_rate);
-
-  /* Latency */
-  fibEntry->policy_counters.wired.latency_idle++;
-  if (fibEntry->policy_counters.wired.latency_idle > 1)
-      fibEntry->policy.stats.wired.latency = 0;
-  fibEntry->policy_counters.wifi.latency_idle++;
-  if (fibEntry->policy_counters.wifi.latency_idle > 1)
-      fibEntry->policy.stats.wifi.latency = 0;
-  fibEntry->policy_counters.cellular.latency_idle++;
-  if (fibEntry->policy_counters.cellular.latency_idle > 1)
-      fibEntry->policy.stats.cellular.latency = 0;
-  fibEntry->policy_counters.all.latency_idle++;
-  if (fibEntry->policy_counters.all.latency_idle > 1)
-      fibEntry->policy.stats.all.latency = 0;
-
-  fibEntry->policy_counters.wired.num_bytes = 0;
-  fibEntry->policy_counters.wired.num_losses = 0;
-  fibEntry->policy_counters.wired.num_packets = 0;
-
-  /* WIFI */
-
-  /*  a) throughput */
-  if (fibEntry->policy_counters.wifi.num_bytes > 0) {
-    throughput = (float)(fibEntry->policy_counters.wifi.num_bytes / \
-          (now - fibEntry->policy_counters.last_update));
-    throughput = throughput * 8 / 1024;
-    if (throughput < 0)
-        throughput = 0;
-  } else {
-    throughput = 0;
-  }
-  fibEntry->policy.stats.wifi.throughput = (float)( \
-        ALPHA     * fibEntry->policy.stats.wifi.throughput + \
-        (1-ALPHA) * throughput);
-
-  /* b) loss rate */
-  if ((fibEntry->policy_counters.wifi.num_losses > 0) && \
-          (fibEntry->policy_counters.wifi.num_packets > 0)) {
-    loss_rate = fibEntry->policy_counters.wifi.num_losses / \
-          fibEntry->policy_counters.wifi.num_packets;
-      loss_rate *= 100;
-  } else {
-      loss_rate = 0;
-  }
-  fibEntry->policy.stats.wifi.loss_rate = (float)(\
-        ALPHA     * fibEntry->policy.stats.wifi.loss_rate + \
-        (1-ALPHA) * loss_rate);
-
-  fibEntry->policy_counters.wifi.num_bytes = 0;
-  fibEntry->policy_counters.wifi.num_losses = 0;
-  fibEntry->policy_counters.wifi.num_packets = 0;
-
-  /* CELLULAR */
-
-  /*  a) throughput */
-  if (fibEntry->policy_counters.cellular.num_bytes > 0) {
-    throughput = (float)(fibEntry->policy_counters.cellular.num_bytes / \
-          (now - fibEntry->policy_counters.last_update)) ;
-    throughput = throughput * 8 / 1024;
-    if (throughput < 0)
-        throughput = 0;
-  } else {
-    throughput = 0;
-  }
-  fibEntry->policy.stats.cellular.throughput = (float)( \
-        ALPHA     * fibEntry->policy.stats.cellular.throughput + \
-        (1-ALPHA) * throughput);
-
-  /* b) loss rate */
-  if ((fibEntry->policy_counters.cellular.num_losses > 0) && \
-          (fibEntry->policy_counters.cellular.num_packets > 0)) {
-    loss_rate = fibEntry->policy_counters.cellular.num_losses / \
-          fibEntry->policy_counters.cellular.num_packets;
-      loss_rate *= 100;
-  } else {
-      loss_rate = 0;
-  }
-  fibEntry->policy.stats.cellular.loss_rate = (float)( \
-        ALPHA     * fibEntry->policy.stats.cellular.loss_rate + \
-        (1-ALPHA) * loss_rate);
-
-  fibEntry->policy_counters.cellular.num_bytes = 0;
-  fibEntry->policy_counters.cellular.num_losses = 0;
-  fibEntry->policy_counters.cellular.num_packets = 0;
-
-  /* ALL */
-
-  /*  a) throughput */
-  if (fibEntry->policy_counters.all.num_bytes > 0) {
-    throughput = (float)( fibEntry->policy_counters.all.num_bytes / \
-          (now - fibEntry->policy_counters.last_update));
-    throughput = throughput * 8 / 1024;
-    if (throughput < 0)
-        throughput = 0;
-  } else {
-    throughput = 0;
-  }
-  fibEntry->policy.stats.all.throughput = (float)(\
-        ALPHA     * fibEntry->policy.stats.all.throughput + \
-        (1-ALPHA) * throughput);
-
-  /* b) loss rate */
-  if ((fibEntry->policy_counters.all.num_losses > 0) && \
-          (fibEntry->policy_counters.all.num_packets > 0)) {
-    loss_rate = fibEntry->policy_counters.all.num_losses / \
-          fibEntry->policy_counters.all.num_packets;
-      loss_rate *= 100;
-  } else {
-      loss_rate = 0;
-  }
-  fibEntry->policy.stats.all.loss_rate = (float)(\
-        ALPHA     * fibEntry->policy.stats.all.loss_rate + \
-        (1-ALPHA) * loss_rate);
-
-  fibEntry->policy_counters.all.num_bytes = 0;
-  fibEntry->policy_counters.all.num_losses = 0;
-  fibEntry->policy_counters.all.num_packets = 0;
-
-  fibEntry->policy_counters.last_update = now;
-}
-#endif /* WITH_POLICY */
-
-Name *fibEntry_GetPrefix(const FibEntry *fibEntry) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-  return fibEntry->name;
-  // return metisName_Acquire(fibEntry->name);
-}
-
-strategy_type fibEntry_GetFwdStrategyType(const FibEntry *fibEntry) {
-  return fibEntry->fwdStrategy->getStrategy(fibEntry->fwdStrategy);
-}
-
-StrategyImpl *fibEntry_GetFwdStrategy(const FibEntry *fibEntry) {
-  return fibEntry->fwdStrategy;
-}
-
-#ifdef WITH_MAPME
-
-void *fibEntry_getUserData(const FibEntry *fibEntry) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-  return fibEntry->userData;
-}
-
-void fibEntry_setUserData(FibEntry *fibEntry, const void *userDataOwner, const
-        void *userData, void (*userDataRelease)(const void *, void **)) {
-  parcAssertNotNull(fibEntry, "Parameter fibEntry must be non-null");
-  fibEntry->userDataOwner = userDataOwner;
-  fibEntry->userData = (void *)userData;
-  fibEntry->userDataRelease = userDataRelease;
-}
-
-#endif /* WITH_MAPME */