refactor(lib, hicn-light, vpp, hiperf): HICN-723

 - move infra data structure into the shared lib
 - new packet cache using double hashing and lookup on prefix suffix
 - testing updates
 - authenticated requests using interest manifests

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: Olivier Roques <oroques+fdio@cisco.com>
Co-authored-by: Enrico Loparco <eloparco@cisco.com>

Change-Id: Iaddebfe6aa5279ea8553433b0f519578f6b9ccd9
Signed-off-by: Luca Muscariello <muscariello@ieee.org>

1 files changed, 118 insertions, 24 deletions

diff --git a/hicn-plugin/src/pg.h b/hicn-plugin/src/pg.h
index 7855248e6..deb585714 100644
--- a/hicn-plugin/src/pg.h
+++ b/hicn-plugin/src/pg.h
@@ -16,6 +16,8 @@
 #ifndef __HICN_PG_H__
 #define __HICN_PG_H__
 
+#include <vppinfra/pool.h>
+
 /**
  * @file pg.h
  *
@@ -57,23 +59,58 @@
  */
 typedef struct hicnpg_main_s
 {
-  u32 index;			    // used to compute the sequence number
-  fib_prefix_t *pgen_clt_hicn_name; // hICN name to put in the destiantion
-				    // addess of an interest
-  u32
-    index_ifaces; /* used to mimic interests coming from different consumer */
-  u32 n_ifaces; /* The source address will change from interest to interest */
-  /* index_ifaces is used to keep a global reference to the iface used */
-  /* and it is incremented when we want to change "consumer" */
-  /* n_ifaces identifies how many consumers to simulate */
-  u32 max_seq_number; // Use to limit the max sequence number
-  u32 n_flows; // Use to simulate multiple flows (a flow always have the same
-	       // hICN name)
-  ip46_address_t pgen_clt_src_addr; // Source addess base to use in the
-				    // interest
-
-  u16 interest_lifetime; // Interest lifetime
-  u32 sw_if;		 // Interface where to send interest and receives data
+  /*
+   * used to compute the sequence number
+   */
+  u32 index;
+
+  /*
+   * hICN name to put in the destination addess of an interest
+   */
+  fib_prefix_t *pgen_clt_hicn_name;
+
+  /*
+   * Used to mimic interests coming from different consumer. The source address
+   * will change from interest to interest index_ifaces is used to keep a
+   * global reference to the iface used and it is incremented when we want to
+   * change "consumer"
+   */
+  u32 index_ifaces;
+
+  /*
+   * n_ifaces identifies how many consumers to simulate
+   */
+  u32 n_ifaces;
+
+  /*
+   * Use to limit the max sequence number
+   */
+  u32 max_seq_number;
+
+  /*
+   * Use to simulate multiple flows (a flow always have the same hICN name)
+   */
+  u32 n_flows;
+
+  /*
+   * Source addess base to use in the interest
+   */
+  ip46_address_t pgen_clt_src_addr;
+
+  /*
+   * Interest lifetime
+   */
+  u16 interest_lifetime;
+
+  /*
+   * Interface where to send interest and receives data.
+   */
+  u32 sw_if;
+
+  /*
+   * Fib node type
+   */
+  fib_node_type_t hicn_fib_node_type;
 } hicnpg_main_t;
 
 extern hicnpg_main_t hicnpg_main;
@@ -83,18 +120,75 @@ extern hicnpg_main_t hicnpg_main;
  *
  * It stores the configuration and make it availables to the pg server node.
  */
-typedef struct hicnpg_server_main_s
+typedef struct hicnpg_server_s
 {
-  u32 node_index;
-  /* Arbitrary content */
-  u32 pgen_svr_buffer_idx;
-  fib_prefix_t *pgen_srv_hicn_name;
-} hicnpg_server_main_t;
+  /*
+   * Prefix served by this packet generator server
+   */
+  fib_prefix_t prefix;
+
+  /*
+   * IP address to put in the destination addess of the data
+   */
+  ip46_address_t hicn_locator;
+
+  /*
+   * Buffer index
+   */
+  u32 buffer_index;
+
+  /**
+   * The DPO used to forward to the next node in the VLIB graph
+   */
+  dpo_id_t dpo;
 
-extern hicnpg_server_main_t hicnpg_server_main;
+  /*
+   * linkage into the FIB graph
+   */
+  fib_node_t fib_node;
 
+  /*
+   * Tracking information for the IP destination
+   */
+  fib_node_index_t fib_entry_index;
+
+  /*
+   * The FIB index
+   */
+  index_t fib_index;
+} hicnpg_server_t;
+
+STATIC_ASSERT (sizeof (hicnpg_server_t) <= 2 * CLIB_CACHE_LINE_BYTES,
+	       "hicnpg_server_t is too large");
+
+extern hicnpg_server_t hicnpg_server_main;
 extern vlib_node_registration_t hicn_pg_interest_node;
 extern vlib_node_registration_t hicn_pg_data_node;
+extern dpo_type_t hicnpg_server_dpo_type;
+
+/**
+ * Pool of hicnpg_servers
+ */
+extern hicnpg_server_t *hicnpg_server_pool;
+
+always_inline hicnpg_server_t *
+hicnpg_server_get (index_t hpgi)
+{
+  return pool_elt_at_index (hicnpg_server_pool, hpgi);
+}
+
+always_inline u8
+dpo_is_pgserver (const dpo_id_t *dpo)
+{
+  return (dpo->dpoi_type == hicnpg_server_dpo_type);
+}
+
+clib_error_t *hicnpg_server_add_and_lock (fib_prefix_t *prefix,
+					  u32 *hicnpg_server_index,
+					  ip46_address_t *locator,
+					  size_t payload_size);
+
+clib_error_t *hicn_pg_init (vlib_main_t *vm);
 
 #endif // __HICN_PG_H__