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, 87 insertions, 85 deletions

diff --git a/extras/router-plugin/rtinject/tap_inject_node.c b/extras/router-plugin/rtinject/tap_inject_node.c
index 73c296451..b888b9223 100644
--- a/extras/router-plugin/rtinject/tap_inject_node.c
+++ b/extras/router-plugin/rtinject/tap_inject_node.c
@@ -15,15 +15,16 @@
  */
 
 #include "tap_inject.h"
-#include <sys/uio.h>
 #include <netinet/in.h>
+#include <sys/uio.h>
 #include <vnet/ethernet/arp_packet.h>
 
 vlib_node_registration_t tap_inject_rx_node;
 vlib_node_registration_t tap_inject_tx_node;
 vlib_node_registration_t tap_inject_neighbor_node;
 
-enum {
+enum
+{
   NEXT_NEIGHBOR_ARP,
   NEXT_NEIGHBOR_ICMP6,
 };
@@ -34,7 +35,7 @@ enum {
 dpo_type_t tap_inject_dpo_type;
 
 static inline void
-tap_inject_tap_send_buffer (int fd, vlib_buffer_t * b)
+tap_inject_tap_send_buffer (int fd, vlib_buffer_t *b)
 {
   struct iovec iov;
   ssize_t n_bytes;
@@ -51,10 +52,10 @@ tap_inject_tap_send_buffer (int fd, vlib_buffer_t * b)
 }
 
 static uword
-tap_inject_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f)
+tap_inject_tx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *f)
 {
-  vlib_buffer_t * b;
-  u32 * pkts;
+  vlib_buffer_t *b;
+  u32 *pkts;
   u32 fd;
   u32 i;
 
@@ -66,7 +67,7 @@ tap_inject_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f)
 
       fd = tap_inject_lookup_tap_fd (vnet_buffer (b)->sw_if_index[VLIB_RX]);
       if (fd == ~0)
-        continue;
+	continue;
 
       /* Re-wind the buffer to the start of the Ethernet header. */
       vlib_buffer_advance (b, -b->current_data);
@@ -85,20 +86,19 @@ VLIB_REGISTER_NODE (tap_inject_tx_node) = {
   .type = VLIB_NODE_TYPE_INTERNAL,
 };
 
-
 static uword
-tap_inject_neighbor (vlib_main_t * vm,
-                     vlib_node_runtime_t * node, vlib_frame_t * f)
+tap_inject_neighbor (vlib_main_t *vm, vlib_node_runtime_t *node,
+		     vlib_frame_t *f)
 {
-  vlib_buffer_t * b;
-  u32 * pkts;
+  vlib_buffer_t *b;
+  u32 *pkts;
   u32 fd;
   u32 i;
   u32 bi;
   u32 next_index = node->cached_next_index;
   u32 next = ~0;
   u32 n_left;
-  u32 * to_next;
+  u32 *to_next;
 
   pkts = vlib_frame_vector_args (f);
 
@@ -109,10 +109,10 @@ tap_inject_neighbor (vlib_main_t * vm,
 
       fd = tap_inject_lookup_tap_fd (vnet_buffer (b)->sw_if_index[VLIB_RX]);
       if (fd == ~0)
-        {
-          vlib_buffer_free (vm, &bi, 1);
-          continue;
-        }
+	{
+	  vlib_buffer_free (vm, &bi, 1);
+	  continue;
+	}
 
       /* Re-wind the buffer to the start of the Ethernet header. */
       vlib_buffer_advance (b, -b->current_data);
@@ -121,32 +121,32 @@ tap_inject_neighbor (vlib_main_t * vm,
 
       /* Send the buffer to a neighbor node too? */
       {
-        ethernet_header_t * eth = vlib_buffer_get_current (b);
-        u16 ether_type = htons (eth->type);
-
-        if (ether_type == ETHERNET_TYPE_ARP)
-          {
-            ethernet_arp_header_t * arp = (void *)(eth + 1);
-
-            if (arp->opcode == ntohs (ETHERNET_ARP_OPCODE_reply))
-              next = NEXT_NEIGHBOR_ARP;
-          }
-        else if (ether_type == ETHERNET_TYPE_IP6)
-          {
-            ip6_header_t * ip = (void *)(eth + 1);
-            icmp46_header_t * icmp = (void *)(ip + 1);
-
-            if (ip->protocol == IP_PROTOCOL_ICMP6 &&
-                icmp->type == ICMP6_neighbor_advertisement)
-              next = NEXT_NEIGHBOR_ICMP6;
-          }
+	ethernet_header_t *eth = vlib_buffer_get_current (b);
+	u16 ether_type = htons (eth->type);
+
+	if (ether_type == ETHERNET_TYPE_ARP)
+	  {
+	    ethernet_arp_header_t *arp = (void *) (eth + 1);
+
+	    if (arp->opcode == ntohs (ETHERNET_ARP_OPCODE_reply))
+	      next = NEXT_NEIGHBOR_ARP;
+	  }
+	else if (ether_type == ETHERNET_TYPE_IP6)
+	  {
+	    ip6_header_t *ip = (void *) (eth + 1);
+	    icmp46_header_t *icmp = (void *) (ip + 1);
+
+	    if (ip->protocol == IP_PROTOCOL_ICMP6 &&
+		icmp->type == ICMP6_neighbor_advertisement)
+	      next = NEXT_NEIGHBOR_ICMP6;
+	  }
       }
 
       if (next == ~0)
-        {
-          vlib_buffer_free (vm, &bi, 1);
-          continue;
-        }
+	{
+	  vlib_buffer_free (vm, &bi, 1);
+	  continue;
+	}
 
       /* ARP and ICMP6 expect to start processing after the Ethernet header. */
       vlib_buffer_advance (b, sizeof (ethernet_header_t));
@@ -156,39 +156,41 @@ tap_inject_neighbor (vlib_main_t * vm,
       *(to_next++) = bi;
       --n_left;
 
-      vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
-                                       n_left, bi, next);
+      vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left,
+				       bi, next);
       vlib_put_next_frame (vm, node, next_index, n_left);
     }
 
   return f->n_vectors;
 }
 
-VLIB_REGISTER_NODE (tap_inject_neighbor_node) = {
-  .function = tap_inject_neighbor,
-  .name = "tap-inject-neighbor",
-  .vector_size = sizeof (u32),
-  .type = VLIB_NODE_TYPE_INTERNAL,
-  .n_next_nodes = 2,
-  .next_nodes = {
-    [NEXT_NEIGHBOR_ARP] = "arp-input",
-    [NEXT_NEIGHBOR_ICMP6] = "icmp6-neighbor-solicitation",
-  },
+VLIB_REGISTER_NODE(tap_inject_neighbor_node) = {
+    .function = tap_inject_neighbor,
+    .name = "tap-inject-neighbor",
+    .vector_size = sizeof(u32),
+    .type = VLIB_NODE_TYPE_INTERNAL,
+    .n_next_nodes = 2,
+    .next_nodes =
+        {
+            [NEXT_NEIGHBOR_ARP] = "arp-input",
+            [NEXT_NEIGHBOR_ICMP6] = "icmp6-neighbor-solicitation",
+        },
 };
 
-
 #define MTU 1500
-#define MTU_BUFFERS ((MTU + vlib_buffer_get_default_data_size(vm) - 1) / vlib_buffer_get_default_data_size(vm))
+#define MTU_BUFFERS                                                           \
+  ((MTU + vlib_buffer_get_default_data_size (vm) - 1) /                       \
+   vlib_buffer_get_default_data_size (vm))
 #define NUM_BUFFERS_TO_ALLOC 32
 
 static inline uword
-tap_rx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f, int fd)
+tap_rx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *f, int fd)
 {
-  tap_inject_main_t * im = tap_inject_get_main ();
+  tap_inject_main_t *im = tap_inject_get_main ();
   u32 sw_if_index;
   struct iovec iov[MTU_BUFFERS];
   u32 bi[MTU_BUFFERS];
-  vlib_buffer_t * b;
+  vlib_buffer_t *b;
   ssize_t n_bytes;
   ssize_t n_bytes_left;
   u32 i, j;
@@ -202,25 +204,23 @@ tap_rx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f, int fd)
     {
       u32 len = vec_len (im->rx_buffers);
 
-
-      u8 index = vlib_buffer_pool_get_default_for_numa (vm,0);
-      len = vlib_buffer_alloc_from_pool(vm,
-                    &im->rx_buffers[len], NUM_BUFFERS_TO_ALLOC,
-                    index);
+      u8 index = vlib_buffer_pool_get_default_for_numa (vm, 0);
+      len = vlib_buffer_alloc_from_pool (vm, &im->rx_buffers[len],
+					 NUM_BUFFERS_TO_ALLOC, index);
 
       _vec_len (im->rx_buffers) += len;
 
       if (vec_len (im->rx_buffers) < MTU_BUFFERS)
-        {
-          clib_warning ("failed to allocate buffers");
-          return 0;
-        }
+	{
+	  clib_warning ("failed to allocate buffers");
+	  return 0;
+	}
     }
 
   /* Fill buffers from the end of the list to make it easier to resize. */
   for (i = 0, j = vec_len (im->rx_buffers) - 1; i < MTU_BUFFERS; ++i, --j)
     {
-      vlib_buffer_t * b;
+      vlib_buffer_t *b;
 
       bi[i] = im->rx_buffers[j];
 
@@ -253,7 +253,8 @@ tap_rx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f, int fd)
   b->current_length = n_bytes;
 
   /* If necessary, configure any remaining buffers in the chain. */
-  for (i = 1; n_bytes_left > 0; ++i, n_bytes_left -= VLIB_BUFFER_DEFAULT_DATA_SIZE)
+  for (i = 1; n_bytes_left > 0;
+       ++i, n_bytes_left -= VLIB_BUFFER_DEFAULT_DATA_SIZE)
     {
       b = vlib_get_buffer (vm, bi[i - 1]);
       b->current_length = VLIB_BUFFER_DEFAULT_DATA_SIZE;
@@ -268,9 +269,9 @@ tap_rx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f, int fd)
 
   /* Get the packet to the output node. */
   {
-    vnet_hw_interface_t * hw;
-    vlib_frame_t * new_frame;
-    u32 * to_next;
+    vnet_hw_interface_t *hw;
+    vlib_frame_t *new_frame;
+    u32 *to_next;
 
     hw = vnet_get_hw_interface (vnet_get_main (), sw_if_index);
 
@@ -286,20 +287,20 @@ tap_rx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f, int fd)
 }
 
 static uword
-tap_inject_rx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f)
+tap_inject_rx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *f)
 {
-  tap_inject_main_t * im = tap_inject_get_main ();
-  u32 * fd;
+  tap_inject_main_t *im = tap_inject_get_main ();
+  u32 *fd;
   uword count = 0;
 
   vec_foreach (fd, im->rx_file_descriptors)
     {
       if (tap_rx (vm, node, f, *fd) != 1)
-        {
-          clib_warning ("rx failed");
-          count = 0;
-          break;
-        }
+	{
+	  clib_warning ("rx failed");
+	  count = 0;
+	  break;
+	}
       ++count;
     }
 
@@ -320,7 +321,7 @@ VLIB_REGISTER_NODE (tap_inject_rx_node) = {
  * @brief no-op lock function.
  */
 static void
-tap_inject_dpo_lock (dpo_id_t * dpo)
+tap_inject_dpo_lock (dpo_id_t *dpo)
 {
 }
 
@@ -328,12 +329,12 @@ tap_inject_dpo_lock (dpo_id_t * dpo)
  * @brief no-op unlock function.
  */
 static void
-tap_inject_dpo_unlock (dpo_id_t * dpo)
+tap_inject_dpo_unlock (dpo_id_t *dpo)
 {
 }
 
 u8 *
-format_tap_inject_dpo (u8 * s, va_list * args)
+format_tap_inject_dpo (u8 *s, va_list *args)
 {
   return (format (s, "tap-inject:[%d]", 0));
 }
@@ -355,15 +356,16 @@ const static char *const *const tap_inject_nodes[DPO_PROTO_NUM] = {
 };
 
 static clib_error_t *
-tap_inject_init (vlib_main_t * vm)
+tap_inject_init (vlib_main_t *vm)
 {
-  tap_inject_main_t * im = tap_inject_get_main ();
+  tap_inject_main_t *im = tap_inject_get_main ();
 
   im->rx_node_index = tap_inject_rx_node.index;
   im->tx_node_index = tap_inject_tx_node.index;
   im->neighbor_node_index = tap_inject_neighbor_node.index;
 
-  tap_inject_dpo_type = dpo_register_new_type (&tap_inject_vft, tap_inject_nodes);
+  tap_inject_dpo_type =
+    dpo_register_new_type (&tap_inject_vft, tap_inject_nodes);
 
   vec_alloc (im->rx_buffers, NUM_BUFFERS_TO_ALLOC);
   vec_reset_length (im->rx_buffers);