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, 41 insertions, 24 deletions

diff --git a/lib/includes/hicn/header.h b/lib/includes/hicn/header.h
index b21fe5c84..8af9170f8 100644
--- a/lib/includes/hicn/header.h
+++ b/lib/includes/hicn/header.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2021 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:
@@ -20,8 +20,8 @@
  * NOTE: These structures are used as convenient facade for accessing
  * the encapsulated headers. They are not written taking compiler padding
  * into account, then a sizeof() on these struct could not give the expected
- * result. For accessing the size of the hicn headers use the macros at the end of
- * this file.
+ * result. For accessing the size of the hicn headers use the macros at the end
+ * of this file.
  */
 
 #ifndef HICN_HEADER_H
@@ -36,6 +36,11 @@ typedef struct
   union
   {
     _tcp_header_t tcp;
+    struct
+    {
+      _udp_header_t udp;
+      _new_header_t newhdr;
+    };
     _icmp_header_t icmp;
     _icmp_wldr_header_t wldr;
   };
@@ -53,25 +58,36 @@ typedef struct
     };
     struct
     {
+      _udp_header_t udp;
+      _new_header_t newhdr;
+      _ah_header_t udp_ah;
+    };
+    struct
+    {
       _icmp_header_t icmp;
       _ah_header_t icmp_ah;
     };
   };
 } hicn_v6ah_hdr_t;
 
-typedef struct
-{
+// For ipv4 we need to use packed structs as fields may be aligned to 64 bits
+// (So for instance tcp header may start at byte #24 instead of byte 20)
+typedef PACKED (struct {
   _ipv4_header_t ip;
   union
   {
     _tcp_header_t tcp;
+    struct
+    {
+      _udp_header_t udp;
+      _new_header_t newhdr;
+    };
     _icmp_header_t icmp;
     _icmp_wldr_header_t wldr;
   };
-} hicn_v4_hdr_t;
+}) hicn_v4_hdr_t;
 
-typedef struct
-{
+typedef PACKED (struct {
   _ipv4_header_t ip;
   union
   {
@@ -82,11 +98,17 @@ typedef struct
     };
     struct
     {
+      _udp_header_t udp;
+      _new_header_t newhdr;
+      _ah_header_t udp_ah;
+    };
+    struct
+    {
       _icmp_header_t icmp;
       _ah_header_t icmp_ah;
     };
   };
-} hicn_v4ah_hdr_t;
+}) hicn_v4ah_hdr_t;
 
 typedef union
 {
@@ -99,24 +121,19 @@ typedef union
   hicn_protocol_t protocol;
 } hicn_header_t;
 
+#define HICN_V6_TCP_HDRLEN  (IPV6_HDRLEN + TCP_HDRLEN)
+#define HICN_V6_ICMP_HDRLEN (IPV6_HDRLEN + ICMP_HDRLEN)
+#define HICN_V6_WLDR_HDRLEN (IPV6_HDRLEN + ICMPWLDR_HDRLEN)
 
-#define HICN_V6_TCP_HDRLEN   (IPV6_HDRLEN + TCP_HDRLEN)
-#define HICN_V6_ICMP_HDRLEN  (IPV6_HDRLEN + ICMP_HDRLEN)
-#define HICN_V6_WLDR_HDRLEN  (IPV6_HDRLEN + ICMPWLDR_HDRLEN)
-
-#define HICN_V6_TCP_AH_HDRLEN   (HICN_V6_TCP_HDRLEN + AH_HDRLEN)
-#define HICN_V6_ICMP_AH_HDRLEN   (HICN_V6_ICMP_HDRLEN + AH_HDRLEN)
-
-
-#define HICN_V4_TCP_HDRLEN   (IPV4_HDRLEN + TCP_HDRLEN)
-#define HICN_V4_ICMP_HDRLEN  (IPV4_HDRLEN + ICMP_HDRLEN)
-#define HICN_V4_WLDR_HDRLEN  (IPV4_HDRLEN + ICMPWLDR_HDRLEN)
-
-#define HICN_V4_TCP_AH_HDRLEN   (HICN_V4_TCP_HDRLEN + AH_HDRLEN)
-#define HICN_V4_ICMP_AH_HDRLEN   (HICN_V4_ICMP_HDRLEN + AH_HDRLEN)
-
+#define HICN_V6_TCP_AH_HDRLEN  (HICN_V6_TCP_HDRLEN + AH_HDRLEN)
+#define HICN_V6_ICMP_AH_HDRLEN (HICN_V6_ICMP_HDRLEN + AH_HDRLEN)
 
+#define HICN_V4_TCP_HDRLEN  (IPV4_HDRLEN + TCP_HDRLEN)
+#define HICN_V4_ICMP_HDRLEN (IPV4_HDRLEN + ICMP_HDRLEN)
+#define HICN_V4_WLDR_HDRLEN (IPV4_HDRLEN + ICMPWLDR_HDRLEN)
 
+#define HICN_V4_TCP_AH_HDRLEN  (HICN_V4_TCP_HDRLEN + AH_HDRLEN)
+#define HICN_V4_ICMP_AH_HDRLEN (HICN_V4_ICMP_HDRLEN + AH_HDRLEN)
 
 #endif /* HICN_HEADER_H */