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, 107 insertions, 120 deletions

diff --git a/extras/router-plugin/rtinject/tap_inject_netlink.c b/extras/router-plugin/rtinject/tap_inject_netlink.c
index a221e8eaa..92ffdc6e5 100644
--- a/extras/router-plugin/rtinject/tap_inject_netlink.c
+++ b/extras/router-plugin/rtinject/tap_inject_netlink.c
@@ -15,25 +15,25 @@
  */
 
 #include "../devices/rtnetlink/netns.h"
+#include <arpa/inet.h>
+#include <linux/mpls.h>
 #include <vlibmemory/api.h>
+#include <vnet/ethernet/arp.h>
+#include <vnet/fib/fib.h>
 #include <vnet/ip/ip6_neighbor.h>
 #include <vnet/ip/lookup.h>
-#include <vnet/fib/fib.h>
-#include <vnet/ethernet/arp.h>
-#include <arpa/inet.h>
-#include <linux/mpls.h>
 #include <vnet/mpls/packet.h>
 
 #include "tap_inject.h"
 
 static void
-add_del_addr (ns_addr_t * a, int is_del)
+add_del_addr (ns_addr_t *a, int is_del)
 {
-  vlib_main_t * vm = vlib_get_main ();
+  vlib_main_t *vm = vlib_get_main ();
   u32 sw_if_index;
 
-  sw_if_index = tap_inject_lookup_sw_if_index_from_tap_if_index (
-                                                                 a->ifaddr.ifa_index);
+  sw_if_index =
+    tap_inject_lookup_sw_if_index_from_tap_if_index (a->ifaddr.ifa_index);
 
   if (sw_if_index == ~0)
     return;
@@ -41,37 +41,39 @@ add_del_addr (ns_addr_t * a, int is_del)
   if (a->ifaddr.ifa_family == AF_INET)
     {
       ip4_add_del_interface_address (vm, sw_if_index,
-                                     (ip4_address_t *) a->local, a->ifaddr.ifa_prefixlen, is_del);
+				     (ip4_address_t *) a->local,
+				     a->ifaddr.ifa_prefixlen, is_del);
     }
   else if (a->ifaddr.ifa_family == AF_INET6)
     {
       ip6_add_del_interface_address (vm, sw_if_index,
-                                     (ip6_address_t *) a->addr, a->ifaddr.ifa_prefixlen, is_del);
+				     (ip6_address_t *) a->addr,
+				     a->ifaddr.ifa_prefixlen, is_del);
     }
 }
 
-
-struct set_flags_args {
+struct set_flags_args
+{
   u32 index;
   u8 flags;
 };
 
 static void
-set_flags_cb (struct set_flags_args * a)
+set_flags_cb (struct set_flags_args *a)
 {
   vnet_sw_interface_set_flags (vnet_get_main (), a->index, a->flags);
 }
 
 static void
-add_del_link (ns_link_t * l, int is_del)
+add_del_link (ns_link_t *l, int is_del)
 {
   struct set_flags_args args = { ~0, 0 };
-  vnet_sw_interface_t * sw;
+  vnet_sw_interface_t *sw;
   u8 flags = 0;
   u32 sw_if_index;
 
-  sw_if_index = tap_inject_lookup_sw_if_index_from_tap_if_index (
-                                                                 l->ifi.ifi_index);
+  sw_if_index =
+    tap_inject_lookup_sw_if_index_from_tap_if_index (l->ifi.ifi_index);
 
   if (sw_if_index == ~0)
     return;
@@ -88,19 +90,18 @@ add_del_link (ns_link_t * l, int is_del)
   args.index = sw_if_index;
   args.flags = flags;
 
-  vl_api_rpc_call_main_thread (set_flags_cb, (u8 *)&args, sizeof (args));
+  vl_api_rpc_call_main_thread (set_flags_cb, (u8 *) &args, sizeof (args));
 }
 
-
 static void
-add_del_neigh (ns_neigh_t * n, int is_del)
+add_del_neigh (ns_neigh_t *n, int is_del)
 {
-  vnet_main_t * vnet_main = vnet_get_main ();
-  vlib_main_t * vm = vlib_get_main ();
+  vnet_main_t *vnet_main = vnet_get_main ();
+  vlib_main_t *vm = vlib_get_main ();
   u32 sw_if_index;
 
-  sw_if_index = tap_inject_lookup_sw_if_index_from_tap_if_index (
-                                                                 n->nd.ndm_ifindex);
+  sw_if_index =
+    tap_inject_lookup_sw_if_index_from_tap_if_index (n->nd.ndm_ifindex);
 
   if (sw_if_index == ~0)
     return;
@@ -114,57 +115,54 @@ add_del_neigh (ns_neigh_t * n, int is_del)
       clib_memcpy (&a.mac, n->lladdr, ETHER_ADDR_LEN);
       clib_memcpy (&a.ip4, n->dst, sizeof (a.ip4));
 
-
       if (n->nd.ndm_state & NUD_REACHABLE)
-        {
-          vnet_arp_set_ip4_over_ethernet (vnet_main, sw_if_index,
-                                          &a,
-                                          IP_NEIGHBOR_FLAG_NO_FIB_ENTRY);
-
-        }
+	{
+	  vnet_arp_set_ip4_over_ethernet (vnet_main, sw_if_index, &a,
+					  IP_NEIGHBOR_FLAG_NO_FIB_ENTRY);
+	}
       else if (n->nd.ndm_state & NUD_FAILED)
-        {
-          vnet_arp_unset_ip4_over_ethernet (vnet_main, sw_if_index, &a);
-        }
+	{
+	  vnet_arp_unset_ip4_over_ethernet (vnet_main, sw_if_index, &a);
+	}
     }
   else if (n->nd.ndm_family == AF_INET6)
     {
       if (n->nd.ndm_state & NUD_REACHABLE)
-        {
-
-          mac_address_t * mac1;
-	  mac1=malloc(sizeof(mac_address_t));
-          memcpy (mac1, n->lladdr, ETHER_ADDR_LEN);
-          vnet_set_ip6_ethernet_neighbor (vm, sw_if_index,
-                                          (ip6_address_t *) n->dst, (mac_address_t *) mac1,
-                                           IP_NEIGHBOR_FLAG_NONE);
-        }
+	{
+
+	  mac_address_t *mac1;
+	  mac1 = malloc (sizeof (mac_address_t));
+	  memcpy (mac1, n->lladdr, ETHER_ADDR_LEN);
+	  vnet_set_ip6_ethernet_neighbor (
+	    vm, sw_if_index, (ip6_address_t *) n->dst, (mac_address_t *) mac1,
+	    IP_NEIGHBOR_FLAG_NONE);
+	}
       else
-        vnet_unset_ip6_ethernet_neighbor (vm, sw_if_index,
-                                          (ip6_address_t *) n->dst);
+	vnet_unset_ip6_ethernet_neighbor (vm, sw_if_index,
+					  (ip6_address_t *) n->dst);
     }
 }
 
-
 #define TAP_INJECT_HOST_ROUTE_TABLE_MAIN 254
 
 static void
-get_mpls_label_stack(struct mpls_label *addr, u32* l)
+get_mpls_label_stack (struct mpls_label *addr, u32 *l)
 {
-  u32 entry = ntohl(addr[0].entry);
+  u32 entry = ntohl (addr[0].entry);
   u32 label = (entry & MPLS_LS_LABEL_MASK) >> MPLS_LS_LABEL_SHIFT;
 
-  for(int i = 1; label != 0; i++) {
-    *l++ = label;
-    if(entry & MPLS_LS_S_MASK)
-      return;
-    entry = ntohl(addr[i].entry);
-    label = (entry & MPLS_LS_LABEL_MASK) >> MPLS_LS_LABEL_SHIFT;
-  }
+  for (int i = 1; label != 0; i++)
+    {
+      *l++ = label;
+      if (entry & MPLS_LS_S_MASK)
+	return;
+      entry = ntohl (addr[i].entry);
+      label = (entry & MPLS_LS_LABEL_MASK) >> MPLS_LS_LABEL_SHIFT;
+    }
 }
 
 static void
-add_del_route (ns_route_t * r, int is_del)
+add_del_route (ns_route_t *r, int is_del)
 {
   u32 sw_if_index;
 
@@ -175,101 +173,90 @@ add_del_route (ns_route_t * r, int is_del)
 
   if (r->rtm.rtm_family == AF_INET)
     {
-      u32 stack[MPLS_STACK_DEPTH] = {0};
+      u32 stack[MPLS_STACK_DEPTH] = { 0 };
 
       fib_prefix_t prefix;
-      ip46_address_t nh;
+      ip_address_t nh;
 
       memset (&prefix, 0, sizeof (prefix));
       prefix.fp_len = r->rtm.rtm_dst_len;
       prefix.fp_proto = FIB_PROTOCOL_IP4;
       clib_memcpy (&prefix.fp_addr.ip4, r->dst, sizeof (prefix.fp_addr.ip4));
-      get_mpls_label_stack(r->encap, stack);
+      get_mpls_label_stack (r->encap, stack);
       memset (&nh, 0, sizeof (nh));
       clib_memcpy (&nh.ip4, r->gateway, sizeof (nh.ip4));
-      if(*stack == 0)
-        fib_table_entry_path_add (0, &prefix, FIB_SOURCE_API,
-                                  FIB_ENTRY_FLAG_NONE, prefix.fp_proto,
-                                  &nh, sw_if_index, 0,
-                                  0 /* weight */, NULL,
-                                  FIB_ROUTE_PATH_FLAG_NONE);
-      else {
-        fib_route_path_t *rpaths = NULL, rpath;
-        memset(&rpath, 0, sizeof(rpath));
-        rpath.frp_weight = 1;
-        rpath.frp_proto = DPO_PROTO_IP4;
-        clib_memcpy(&rpath.frp_addr.ip4, r->gateway, sizeof(rpath.frp_addr.ip4));
-        rpath.frp_sw_if_index = sw_if_index;
-        for(int i = 0; i < MPLS_STACK_DEPTH && stack[i] != 0; i++) {
-          fib_mpls_label_t fib_label = {stack[i],0,0,0};
-          vec_add1(rpath.frp_label_stack, fib_label);
-        }
-        vec_add1(rpaths, rpath);
-        fib_table_entry_path_add2(0,
-                                  &prefix,
-                                  FIB_SOURCE_API,
-                                  FIB_ENTRY_FLAG_NONE,
-                                  rpaths);
-      }
+      if (*stack == 0)
+	fib_table_entry_path_add (
+	  0, &prefix, FIB_SOURCE_API, FIB_ENTRY_FLAG_NONE, prefix.fp_proto,
+	  &nh, sw_if_index, 0, 0 /* weight */, NULL, FIB_ROUTE_PATH_FLAG_NONE);
+      else
+	{
+	  fib_route_path_t *rpaths = NULL, rpath;
+	  memset (&rpath, 0, sizeof (rpath));
+	  rpath.frp_weight = 1;
+	  rpath.frp_proto = DPO_PROTO_IP4;
+	  clib_memcpy (&rpath.frp_addr.ip4, r->gateway,
+		       sizeof (rpath.frp_addr.ip4));
+	  rpath.frp_sw_if_index = sw_if_index;
+	  for (int i = 0; i < MPLS_STACK_DEPTH && stack[i] != 0; i++)
+	    {
+	      fib_mpls_label_t fib_label = { stack[i], 0, 0, 0 };
+	      vec_add1 (rpath.frp_label_stack, fib_label);
+	    }
+	  vec_add1 (rpaths, rpath);
+	  fib_table_entry_path_add2 (0, &prefix, FIB_SOURCE_API,
+				     FIB_ENTRY_FLAG_NONE, rpaths);
+	}
     }
   else if (r->rtm.rtm_family == AF_INET6)
     {
       fib_prefix_t prefix;
-      ip46_address_t nh;
+      ip_address_t nh;
       memset (&prefix, 0, sizeof (prefix));
       prefix.fp_len = r->rtm.rtm_dst_len;
       prefix.fp_proto = FIB_PROTOCOL_IP6;
       clib_memcpy (&prefix.fp_addr.ip6, r->dst, sizeof (prefix.fp_addr.ip6));
       memset (&nh, 0, sizeof (nh));
       clib_memcpy (&nh.ip6, r->gateway, sizeof (nh.ip6));
-      fib_table_entry_path_add (0, &prefix, FIB_SOURCE_API,
-                                FIB_ENTRY_FLAG_NONE, prefix.fp_proto,
-                                &nh, sw_if_index, 0,
-                                0 /* weight */, NULL,
-                                FIB_ROUTE_PATH_FLAG_NONE);
+      fib_table_entry_path_add (
+	0, &prefix, FIB_SOURCE_API, FIB_ENTRY_FLAG_NONE, prefix.fp_proto, &nh,
+	sw_if_index, 0, 0 /* weight */, NULL, FIB_ROUTE_PATH_FLAG_NONE);
     }
-/*     else if (r->rtm.rtm_family == AF_MPLS)
-    {
-      u32 dst_label;
-      get_mpls_label_stack((struct mpls_label*) r->dst, &dst_label);
-      struct rtvia *via = (struct rtvia*) r->via;
-      fib_prefix_t prefix;
-      fib_route_path_t *rpaths = NULL, rpath;
-      memset (&prefix, 0, sizeof (prefix));
-      prefix.fp_len = 21;
-      prefix.fp_label = dst_label;
-      prefix.fp_proto = FIB_PROTOCOL_MPLS;
-      prefix.fp_payload_proto = DPO_PROTO_IP4;
-      memset(&rpath, 0, sizeof(rpath));
-      clib_memcpy (&rpath.frp_addr.ip4, via->rtvia_addr, sizeof (rpath.frp_addr.ip4));
-      rpath.frp_weight = 1;
-      rpath.frp_proto = DPO_PROTO_IP4;
-      rpath.frp_fib_index = 0;
-      rpath.frp_sw_if_index = sw_if_index;
-      vec_add1(rpaths, rpath);
-      fib_table_entry_path_add2(0,
-                                &prefix,
-                                FIB_SOURCE_API,
-                                FIB_ENTRY_FLAG_NONE,
-                                rpaths);
-    }*/
+  /*     else if (r->rtm.rtm_family == AF_MPLS)
+      {
+	u32 dst_label;
+	get_mpls_label_stack((struct mpls_label*) r->dst, &dst_label);
+	struct rtvia *via = (struct rtvia*) r->via;
+	fib_prefix_t prefix;
+	fib_route_path_t *rpaths = NULL, rpath;
+	memset (&prefix, 0, sizeof (prefix));
+	prefix.fp_len = 21;
+	prefix.fp_label = dst_label;
+	prefix.fp_proto = FIB_PROTOCOL_MPLS;
+	prefix.fp_payload_proto = DPO_PROTO_IP4;
+	memset(&rpath, 0, sizeof(rpath));
+	clib_memcpy (&rpath.frp_addr.ip4, via->rtvia_addr, sizeof
+     (rpath.frp_addr.ip4)); rpath.frp_weight = 1; rpath.frp_proto =
+     DPO_PROTO_IP4; rpath.frp_fib_index = 0; rpath.frp_sw_if_index =
+     sw_if_index; vec_add1(rpaths, rpath); fib_table_entry_path_add2(0,
+     &prefix, FIB_SOURCE_API, FIB_ENTRY_FLAG_NONE, rpaths);
+      }*/
 }
 
-
 static void
-netns_notify_cb (void * obj, netns_type_t type, u32 flags, uword opaque)
+netns_notify_cb (void *obj, netns_type_t type, u32 flags, uword opaque)
 {
   if (type == NETNS_TYPE_ADDR)
-    add_del_addr ((ns_addr_t *)obj, flags & NETNS_F_DEL);
+    add_del_addr ((ns_addr_t *) obj, flags & NETNS_F_DEL);
 
   else if (type == NETNS_TYPE_LINK)
-    add_del_link ((ns_link_t *)obj, flags & NETNS_F_DEL);
+    add_del_link ((ns_link_t *) obj, flags & NETNS_F_DEL);
 
   else if (type == NETNS_TYPE_NEIGH)
-    add_del_neigh ((ns_neigh_t *)obj, flags & NETNS_F_DEL);
+    add_del_neigh ((ns_neigh_t *) obj, flags & NETNS_F_DEL);
 
   else if (type == NETNS_TYPE_ROUTE)
-    add_del_route ((ns_route_t *)obj, flags & NETNS_F_DEL);
+    add_del_route ((ns_route_t *) obj, flags & NETNS_F_DEL);
 }
 
 void