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, 88 insertions, 26 deletions

diff --git a/lib/src/protocol/tcp.c b/lib/src/protocol/tcp.c
index cfeac1907..8097cfd12 100644
--- a/lib/src/protocol/tcp.c
+++ b/lib/src/protocol/tcp.c
@@ -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:
@@ -44,7 +44,20 @@ DECLARE_get_length (tcp, UNEXPECTED);
 DECLARE_get_payload_length (tcp, UNEXPECTED);
 DECLARE_set_payload_length (tcp, UNEXPECTED);
 
-always_inline int
+static inline void
+reset_for_hash (hicn_protocol_t *h)
+{
+  h->tcp.sport = 0;
+  h->tcp.dport = 0;
+  h->tcp.seq_ack = 0;
+  h->tcp.data_offset_and_reserved = 0;
+  h->tcp.flags = 0;
+  h->tcp.window = 0;
+  h->tcp.csum = 0;
+  h->tcp.urg_ptr = 0;
+}
+
+static inline int
 check_tcp_checksum (u16 csum)
 {
   /* As per RFC1624
@@ -92,6 +105,20 @@ tcp_init_packet_header (hicn_type_t type, hicn_protocol_t *h)
 }
 
 int
+tcp_is_interest (hicn_type_t type, const hicn_protocol_t *h, int *is_interest)
+{
+  *is_interest = (h->tcp.flags & HICN_TCP_FLAG_ECE) == 0;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+tcp_mark_packet_as_interest (hicn_type_t type, hicn_protocol_t *h)
+{
+  h->tcp.flags &= ~HICN_TCP_FLAG_ECE;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
 tcp_get_interest_name_suffix (hicn_type_t type, const hicn_protocol_t *h,
 			      hicn_name_suffix_t *suffix)
 {
@@ -103,15 +130,12 @@ int
 tcp_set_interest_name_suffix (hicn_type_t type, hicn_protocol_t *h,
 			      const hicn_name_suffix_t *suffix)
 {
-  h->tcp.name_suffix = htonl (*suffix);
+  int rc = tcp_mark_packet_as_interest (type, h);
+  if (rc)
+    return rc;
 
-  return HICN_LIB_ERROR_NONE;
-}
+  h->tcp.name_suffix = htonl (*suffix);
 
-int
-tcp_mark_packet_as_interest (hicn_type_t type, hicn_protocol_t *h)
-{
-  h->tcp.flags &= ~HICN_TCP_FLAG_ECE;
   return HICN_LIB_ERROR_NONE;
 }
 
@@ -125,9 +149,7 @@ tcp_mark_packet_as_data (hicn_type_t type, hicn_protocol_t *h)
 int
 tcp_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t *h)
 {
-  memset (&(h->tcp), 0, 4);
-  memset (&(h->tcp.seq_ack), 0, 12);
-
+  reset_for_hash (h);
   return CHILD_OPS (reset_interest_for_hash, type, h);
 }
 
@@ -143,6 +165,10 @@ int
 tcp_set_data_name_suffix (hicn_type_t type, hicn_protocol_t *h,
 			  const hicn_name_suffix_t *suffix)
 {
+  int rc = tcp_mark_packet_as_data (type, h);
+  if (rc)
+    return rc;
+
   h->tcp.name_suffix = htonl (*suffix);
   return HICN_LIB_ERROR_NONE;
 }
@@ -181,9 +207,7 @@ tcp_update_data_pathlabel (hicn_type_t type, hicn_protocol_t *h,
 int
 tcp_reset_data_for_hash (hicn_type_t type, hicn_protocol_t *h)
 {
-  memset (&(h->tcp), 0, 4);
-  memset (&(h->tcp.seq_ack), 0, 12);
-
+  reset_for_hash (h);
   return CHILD_OPS (reset_data_for_hash, type, h);
 }
 
@@ -279,7 +303,7 @@ tcp_verify_checksums (hicn_type_t type, hicn_protocol_t *h, u16 partial_csum,
 
 int
 tcp_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
-		      const ip46_address_t *addr_new, ip46_address_t *addr_old)
+		      const ip_address_t *addr_new, ip_address_t *addr_old)
 {
   u16 *tcp_checksum = &(h->tcp.csum);
   int ret = check_tcp_checksum (*tcp_checksum);
@@ -310,7 +334,7 @@ tcp_rewrite_interest (hicn_type_t type, hicn_protocol_t *h,
 
 int
 tcp_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
-		  const ip46_address_t *addr_new, ip46_address_t *addr_old,
+		  const ip_address_t *addr_new, ip_address_t *addr_old,
 		  const hicn_faceid_t face_id, u8 reset_pl)
 {
 
@@ -339,11 +363,11 @@ tcp_rewrite_data (hicn_type_t type, hicn_protocol_t *h,
    * csum = ip_csum_add_even (csum, h->ipv4.saddr.as_u32);
    */
   ip_csum_t csum =
-    ip_csum_sub_even (*tcp_checksum, (ip_csum_t) (addr_old->ip6.as_u64[0]));
+    ip_csum_sub_even (*tcp_checksum, (ip_csum_t) (addr_old->v6.as_u64[0]));
   csum =
-    ip_csum_sub_even (*tcp_checksum, (ip_csum_t) (addr_old->ip6.as_u64[1]));
-  csum = ip_csum_add_even (csum, (ip_csum_t) (addr_new->ip6.as_u64[0]));
-  csum = ip_csum_add_even (csum, (ip_csum_t) (addr_new->ip6.as_u64[1]));
+    ip_csum_sub_even (*tcp_checksum, (ip_csum_t) (addr_old->v6.as_u64[1]));
+  csum = ip_csum_add_even (csum, (ip_csum_t) (addr_new->v6.as_u64[0]));
+  csum = ip_csum_add_even (csum, (ip_csum_t) (addr_new->v6.as_u64[1]));
 
   csum = ip_csum_sub_even (csum, old_pl);
   csum = ip_csum_add_even (csum, h->tcp.seq_ack);
@@ -389,16 +413,17 @@ tcp_set_signature_size (hicn_type_t type, hicn_protocol_t *h,
 }
 
 int
-tcp_set_signature_gap (hicn_type_t type, hicn_protocol_t *h, uint8_t gap)
+tcp_set_signature_padding (hicn_type_t type, hicn_protocol_t *h,
+			   size_t padding)
 {
-  return CHILD_OPS (set_signature_gap, type, h, gap);
+  return CHILD_OPS (set_signature_padding, type, h, padding);
 }
 
 int
-tcp_get_signature_gap (hicn_type_t type, const hicn_protocol_t *h,
-		       uint8_t *gap)
+tcp_get_signature_padding (hicn_type_t type, const hicn_protocol_t *h,
+			   size_t *padding)
 {
-  return CHILD_OPS (get_signature_gap, type, h, gap);
+  return CHILD_OPS (get_signature_padding, type, h, padding);
 }
 
 int
@@ -448,6 +473,43 @@ tcp_get_signature (hicn_type_t type, hicn_protocol_t *h, uint8_t **signature)
   return CHILD_OPS (get_signature, type, h, signature);
 }
 
+int
+tcp_get_payload_type (hicn_type_t type, const hicn_protocol_t *h,
+		      hicn_payload_type_t *payload_type)
+{
+  *payload_type = ((h->tcp.flags & HICN_TCP_FLAG_URG) == HICN_TCP_FLAG_URG);
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+tcp_set_payload_type (hicn_type_t type, hicn_protocol_t *h,
+		      hicn_payload_type_t payload_type)
+{
+  if (payload_type != HPT_DATA && payload_type != HPT_MANIFEST)
+    return HICN_LIB_ERROR_INVALID_PARAMETER;
+
+  if (payload_type)
+    h->tcp.flags |= HICN_TCP_FLAG_URG;
+  else
+    h->tcp.flags &= ~HICN_TCP_FLAG_URG;
+
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+tcp_is_last_data (hicn_type_t type, const hicn_protocol_t *h, int *is_last)
+{
+  *is_last = (h->tcp.flags & HICN_TCP_FLAG_RST) == HICN_TCP_FLAG_RST;
+  return HICN_LIB_ERROR_NONE;
+}
+
+int
+tcp_set_last_data (hicn_type_t type, hicn_protocol_t *h)
+{
+  h->tcp.flags |= HICN_TCP_FLAG_RST;
+  return HICN_LIB_ERROR_NONE;
+}
+
 DECLARE_HICN_OPS (tcp);
 
 /*