VPP-470: Introduce VxLAN-GPE as transport for iOAM.

See Jira ticket for more details
- New plugins created to (a) Add VxLAN-GPE as transport (b) Provide export infra for
  VxLAN-GPE.

Change-Id: Ife50c7434f53d17a4783062310f73d063d53494c
Signed-off-by: Vengada Govindan <venggovi@cisco.com>

1 files changed, 0 insertions, 326 deletions

diff --git a/plugins/ioam-plugin/ioam/export/ioam_export.h b/plugins/ioam-plugin/ioam/export/ioam_export.h
deleted file mode 100644
index f4a461f6bf3..00000000000
--- a/plugins/ioam-plugin/ioam/export/ioam_export.h
+++ /dev/null
@@ -1,326 +0,0 @@
-/*
- * Copyright (c) 2016 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:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef __included_ioam_export_h__
-#define __included_ioam_export_h__
-
-#include <vnet/vnet.h>
-#include <vnet/ip/ip.h>
-#include <vnet/ip/ip_packet.h>
-#include <vnet/ip/ip4_packet.h>
-#include <vnet/ip/ip6_packet.h>
-#include <vnet/ip/udp.h>
-#include <vnet/flow/ipfix_packet.h>
-
-#include <vppinfra/pool.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/error.h>
-#include <vppinfra/elog.h>
-
-#include <vlib/threads.h>
-
-typedef struct ioam_export_buffer {
-  /* Allocated buffer */
-  u32 buffer_index;
-  u64 touched_at;
-  u8 records_in_this_buffer;
-} ioam_export_buffer_t;
-
-
-typedef struct {
-  /* API message ID base */
-  u16 msg_id_base;
-
-  /* TODO: to support multiple collectors all this has to be grouped and create a vector here*/
-  u8 *record_header;
-  u32 sequence_number;
-  u32 domain_id;
-
-  /* ipfix collector, our ip address */
-  ip4_address_t ipfix_collector;
-  ip4_address_t src_address;
-
-  /* Pool of ioam_export_buffer_t */
-  ioam_export_buffer_t *buffer_pool;
-  /* Vector of per thread ioam_export_buffer_t to buffer pool index */
-  u32 *buffer_per_thread;
-  /* Lock per thread to swap buffers between worker and timer process*/
-  volatile u32 **lockp;
-
-  /* time scale transform*/
-  u32 unix_time_0;
-  f64 vlib_time_0;
-
-  /* convenience */
-  vlib_main_t * vlib_main;
-  vnet_main_t * vnet_main;
-  ethernet_main_t * ethernet_main;
-  u32 ip4_lookup_node_index;
-
-  uword my_hbh_slot;
-  u32 export_process_node_index;
-} ioam_export_main_t;
-
-ioam_export_main_t ioam_export_main;
-
-vlib_node_registration_t export_node;
-
-#define DEFAULT_EXPORT_SIZE (3 * CLIB_CACHE_LINE_BYTES)
-/*
- *  Number of records in a buffer
- * ~(MTU (1500) - [ip hdr(40) + UDP(8) + ipfix (24)]) / DEFAULT_EXPORT_SIZE
- */
-#define DEFAULT_EXPORT_RECORDS 7
-
-always_inline ioam_export_buffer_t *ioam_export_get_my_buffer(u32 thread_id)
-{
-  ioam_export_main_t *em = &ioam_export_main;
-
-  if (vec_len(em->buffer_per_thread) > thread_id)
-    return(pool_elt_at_index(em->buffer_pool, em->buffer_per_thread[thread_id]));
-  return(0);
-}
-
-inline static int ioam_export_buffer_add_header (vlib_buffer_t *b0)
-{
-  ioam_export_main_t *em = &ioam_export_main;
-  clib_memcpy(b0->data, em->record_header, vec_len(em->record_header));
-  b0->current_data = 0;
-  b0->current_length = vec_len(em->record_header);
-  b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
-  return(1);
-}
-
-inline static int ioam_export_init_buffer (vlib_main_t *vm,
-					   ioam_export_buffer_t *eb)
-{
-  vlib_buffer_t *b = 0;
-
-  if (!eb)
-    return(-1);
-  /* TODO: Perhaps buffer init from template here */
-  if (vlib_buffer_alloc (vm, &(eb->buffer_index), 1) != 1)
-    return(-2);
-  eb->records_in_this_buffer = 0;
-  eb->touched_at = vlib_time_now(vm);
-  b = vlib_get_buffer(vm, eb->buffer_index);
-  (void) ioam_export_buffer_add_header(b);
-  vnet_buffer(b)->sw_if_index[VLIB_RX] = 0;
-  vnet_buffer(b)->sw_if_index[VLIB_TX] = ~0;
-  return(1);
-}
-
-inline static void ioam_export_thread_buffer_free (void)
-{
-  ioam_export_main_t *em = &ioam_export_main;
-  vlib_main_t *vm = em->vlib_main;
-  ioam_export_buffer_t *eb = 0;
-  int i;
-  for (i = 0; i < vec_len(em->buffer_per_thread); i++)
-    {
-      eb = pool_elt_at_index(em->buffer_pool, em->buffer_per_thread[i]);
-      if (eb)
-	vlib_buffer_free(vm, &(eb->buffer_index), 1);
-    }
-  for (i = 0; i < vec_len(em->lockp); i++)
-    clib_mem_free((void *) em->lockp[i]);
-  vec_free(em->buffer_per_thread);
-  pool_free(em->buffer_pool);
-  vec_free(em->lockp);
-  em->buffer_per_thread = 0;
-  em->buffer_pool = 0;
-  em->lockp = 0;
-}
-
-inline static int ioam_export_thread_buffer_init (vlib_main_t *vm)
-{
-  ioam_export_main_t *em = &ioam_export_main;
-  int no_of_threads = vec_len(vlib_worker_threads);
-  int i;
-  ioam_export_buffer_t *eb = 0;
-  vlib_node_t * ip4_lookup_node;
-
-  pool_alloc_aligned(em->buffer_pool,
-		      no_of_threads - 1,
-		      CLIB_CACHE_LINE_BYTES);
-  vec_validate_aligned(em->buffer_per_thread,
-			no_of_threads-1,
-			CLIB_CACHE_LINE_BYTES);
-  vec_validate_aligned(em->lockp, no_of_threads-1,
-		       CLIB_CACHE_LINE_BYTES);
-  ip4_lookup_node = vlib_get_node_by_name (vm, (u8 *) "ip4-lookup");
-  em->ip4_lookup_node_index = ip4_lookup_node->index;
-  if (!em->buffer_per_thread || !em->buffer_pool || !em->lockp)
-    {
-      return(-1);
-    }
-  for (i=0; i < no_of_threads; i++)
-    {
-      eb = 0;
-      pool_get_aligned(em->buffer_pool, eb, CLIB_CACHE_LINE_BYTES);
-      memset(eb, 0, sizeof (*eb));
-      em->buffer_per_thread[i] = eb - em->buffer_pool;
-      if (ioam_export_init_buffer(vm, eb) != 1)
-	{
-	  ioam_export_thread_buffer_free();
-	  return(-2);
-	}
-      em->lockp[i] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
-					     CLIB_CACHE_LINE_BYTES);
-      memset ((void *) em->lockp[i], 0, CLIB_CACHE_LINE_BYTES);
-    }
-  return(1);
-}
-
-#define IPFIX_IOAM_EXPORT_ID 272
-
-/* Used to build the rewrite */
-/* data set packet */
-typedef struct {
-  ipfix_message_header_t h;
-  ipfix_set_header_t s;
-} ipfix_data_packet_t;
-
-typedef struct {
-  ip4_header_t ip4;
-  udp_header_t udp;
-  ipfix_data_packet_t ipfix;
-} ip4_ipfix_data_packet_t;
-
-
-inline static void ioam_export_header_cleanup (ip4_address_t * collector_address,
-					       ip4_address_t * src_address)
-{
-  ioam_export_main_t *em = &ioam_export_main;
-  vec_free(em->record_header);
-  em->record_header = 0;
-}
-
-inline static int ioam_export_header_create (ip4_address_t * collector_address,
-					     ip4_address_t * src_address)
-{
-  ioam_export_main_t *em = &ioam_export_main;
-  ip4_header_t * ip;
-  udp_header_t * udp;
-  ipfix_message_header_t * h;
-  ipfix_set_header_t * s;
-  u8 * rewrite = 0;
-  ip4_ipfix_data_packet_t * tp;
-
-
-  /* allocate rewrite space */
-  vec_validate_aligned (rewrite,
-                        sizeof (ip4_ipfix_data_packet_t) - 1,
-                        CLIB_CACHE_LINE_BYTES);
-
-  tp = (ip4_ipfix_data_packet_t *) rewrite;
-  ip = (ip4_header_t *) &tp->ip4;
-  udp = (udp_header_t *) (ip+1);
-  h = (ipfix_message_header_t *)(udp+1);
-  s = (ipfix_set_header_t *)(h+1);
-
-  ip->ip_version_and_header_length = 0x45;
-  ip->ttl = 254;
-  ip->protocol = IP_PROTOCOL_UDP;
-  ip->src_address.as_u32 = src_address->as_u32;
-  ip->dst_address.as_u32 = collector_address->as_u32;
-  udp->src_port = clib_host_to_net_u16 (4939 /* $$FIXME */);
-  udp->dst_port = clib_host_to_net_u16 (4939);
-  /* FIXUP: UDP length */
-  udp->length = clib_host_to_net_u16 (vec_len(rewrite) +
-    (DEFAULT_EXPORT_RECORDS * DEFAULT_EXPORT_SIZE) - sizeof (*ip));
-
-  /* FIXUP: message header export_time */
-  /* FIXUP: message header sequence_number */
-  h->domain_id = clib_host_to_net_u32 (em->domain_id);
-
-  /*FIXUP: Setid length in octets if records exported are not default*/
-  s->set_id_length = ipfix_set_id_length (IPFIX_IOAM_EXPORT_ID,
-    (sizeof(*s) + (DEFAULT_EXPORT_RECORDS * DEFAULT_EXPORT_SIZE)));
-
-  /* FIXUP: h version and length length in octets if records exported are not default */
-  h->version_length = version_length (sizeof(*h)+
-    (sizeof(*s) + (DEFAULT_EXPORT_RECORDS * DEFAULT_EXPORT_SIZE)));
-
-  /* FIXUP: ip length if records exported are not default */
-  /* FIXUP: ip checksum if records exported are not default */
-  ip->length = clib_host_to_net_u16 (vec_len(rewrite) +
-    (DEFAULT_EXPORT_RECORDS * DEFAULT_EXPORT_SIZE));
-  ip->checksum = ip4_header_checksum (ip);
-  _vec_len(rewrite) = sizeof(ip4_ipfix_data_packet_t);
-  em->record_header = rewrite;
-  return(1);
-}
-
-inline static int ioam_export_send_buffer (vlib_main_t *vm,
-    ioam_export_buffer_t *eb)
-{
-  ioam_export_main_t *em = &ioam_export_main;
-  ip4_header_t * ip;
-  udp_header_t * udp;
-  ipfix_message_header_t * h;
-  ipfix_set_header_t * s;
-  ip4_ipfix_data_packet_t * tp;
-  vlib_buffer_t *b0;
-  u16 new_l0, old_l0;
-  ip_csum_t sum0;
-  vlib_frame_t * nf = 0;
-  u32 * to_next;
-
-  b0 = vlib_get_buffer(vm, eb->buffer_index);
-  tp = vlib_buffer_get_current (b0);
-  ip = (ip4_header_t *) &tp->ip4;
-  udp = (udp_header_t *) (ip+1);
-  h = (ipfix_message_header_t *)(udp+1);
-  s = (ipfix_set_header_t *)(h+1);
-
-  /* FIXUP: message header export_time */
-  h->export_time = clib_host_to_net_u32((u32)
-    (((f64)em->unix_time_0) +
-    (vlib_time_now(em->vlib_main) - em->vlib_time_0)));
-
-  /* FIXUP: message header sequence_number */
-  h->sequence_number = clib_host_to_net_u32 (em->sequence_number++);
-
-  /* FIXUP: lengths if different from default */
-  if (PREDICT_FALSE(eb->records_in_this_buffer != DEFAULT_EXPORT_RECORDS)) {
-     s->set_id_length = ipfix_set_id_length (IPFIX_IOAM_EXPORT_ID /* set_id */,
-                                            b0->current_length -
-                                            (sizeof (*ip) + sizeof (*udp) +
-                                            sizeof (*h)));
-     h->version_length = version_length (b0->current_length -
-                                        (sizeof (*ip) + sizeof (*udp)));
-     sum0 = ip->checksum;
-     old_l0 = ip->length;
-     new_l0 = clib_host_to_net_u16 ((u16)b0->current_length);
-     sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
-                            length /* changed member */);
-     ip->checksum = ip_csum_fold (sum0);
-     ip->length = new_l0;
-     udp->length = clib_host_to_net_u16 (b0->current_length - sizeof (*ip));
-  }
-
-  /* Enqueue pkts to ip4-lookup */
-
-  nf = vlib_get_frame_to_node (vm, em->ip4_lookup_node_index);
-  nf->n_vectors = 0;
-  to_next = vlib_frame_vector_args (nf);
-  nf->n_vectors = 1;
-  to_next[0] = eb->buffer_index;
-  vlib_put_frame_to_node(vm, em->ip4_lookup_node_index, nf);
-  return(1);
-
-}
-
-#endif /* __included_ioam_export_h__ */