Initial VES for DANOS vRouter

1. Create vpp_measurement_reporter that use DANOS configd query
   to retrieve statistics and libevel to transmit
2. Copy VES evel library to build a debian package under
   vpp_measurement_report
3. Add debian files to create a vpp_measurement_reporter + libevel
   debian package
4. Add debian install and systemctl start files
5. Add instruction to build VES reporter debian package (that will
   include libevel.so)
6. Add instructions to build DANOS ISO with VES reporter debian
   package and creating glance image

Issue-ID: INT-1566
Change-Id: If18f16525f07f1b6bae0fc105e0452263b4bf661
Signed-off-by: Brian Freeman <bf1936@att.com>

1 files changed, 269 insertions, 0 deletions

diff --git a/vnfs/VESreporting_vFW5.0_DANOS/evel/evel-library/code/evel_library/evel_heartbeat_fields.c b/vnfs/VESreporting_vFW5.0_DANOS/evel/evel-library/code/evel_library/evel_heartbeat_fields.c
new file mode 100644
index 00000000..be8527c4
--- /dev/null
+++ b/vnfs/VESreporting_vFW5.0_DANOS/evel/evel-library/code/evel_library/evel_heartbeat_fields.c
@@ -0,0 +1,269 @@
+/*************************************************************************//**
+ *
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ *
+ * Unless otherwise specified, all software contained herein is
+ * 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.
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ ****************************************************************************/
+
+/**************************************************************************//**
+ * @file
+ * Implementation of EVEL functions relating to Heartbeat fields.
+ *
+ ****************************************************************************/
+
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#include "evel.h"
+#include "evel_throttle.h"
+
+/**************************************************************************//**
+ * Create a new Heartbeat fields event.
+ *
+ * @note    The mandatory fields on the Heartbeat fields must be supplied to
+ *          this factory function and are immutable once set.  Optional fields
+ *          have explicit setter functions, but again values may only be set
+ *          once so that the event has immutable properties.
+ * @param ev_name  Unique Event Name confirming Domain AsdcModel Description
+ * @param ev_id    A universal identifier of the event for: troubleshooting correlation, analysis, etc
+ * @param interval    heartbeat interval
+ * @returns pointer to the newly manufactured ::EVENT_HEARTBEAT_FIELD.  If the event
+ *          is not used (i.e. posted) it must be released using
+ *          ::evel_free_hrtbt_field.
+ * @retval  NULL  Failed to create the event.
+ *****************************************************************************/
+EVENT_HEARTBEAT_FIELD * evel_new_heartbeat_field(int interval,const char* ev_name, const char *ev_id)
+{
+  EVENT_HEARTBEAT_FIELD * event = NULL;
+
+  EVEL_ENTER();
+
+  /***************************************************************************/
+  /* Check preconditions.                                                    */
+  /***************************************************************************/
+  assert(interval > 0);
+
+  /***************************************************************************/
+  /* Allocate the Heartbeat fields event.                                           */
+  /***************************************************************************/
+  event = malloc(sizeof(EVENT_HEARTBEAT_FIELD));
+  if (event == NULL)
+  {
+    log_error_state("Out of memory");
+    goto exit_label;
+  }
+  memset(event, 0, sizeof(EVENT_HEARTBEAT_FIELD));
+  EVEL_DEBUG("New Heartbeat fields event is at %lp", event);
+
+  /***************************************************************************/
+  /* Initialize the header & the Heartbeat fields fields.                           */
+  /***************************************************************************/
+  evel_init_header_nameid(&event->header,ev_name,ev_id);
+  event->header.event_domain = EVEL_DOMAIN_HEARTBEAT_FIELD;
+  event->major_version = EVEL_HEARTBEAT_FIELD_MAJOR_VERSION;
+  event->minor_version = EVEL_HEARTBEAT_FIELD_MINOR_VERSION;
+
+  event->heartbeat_interval = interval;
+  dlist_initialize(&event->additional_info);
+
+exit_label:
+
+  EVEL_EXIT();
+  return event;
+}
+
+/**************************************************************************//**
+ * Add a name/value pair to the Heartbeat fields, under the additionalFields array.
+ *
+ * The name and value are null delimited ASCII strings.  The library takes
+ * a copy so the caller does not have to preserve values after the function
+ * returns.
+ *
+ * @param event     Pointer to the Heartbeat fields event.
+ * @param name      ASCIIZ string with the field's name.  The caller does not
+ *                  need to preserve the value once the function returns.
+ * @param value     ASCIIZ string with the field's value.  The caller does not
+ *                  need to preserve the value once the function returns.
+ *****************************************************************************/
+void evel_hrtbt_field_addl_field_add(EVENT_HEARTBEAT_FIELD * const event,
+                                 const char * const name,
+                                 const char * const value)
+{
+  OTHER_FIELD * nv_pair = NULL;
+
+  EVEL_ENTER();
+
+  /***************************************************************************/
+  /* Check preconditions.                                                    */
+  /***************************************************************************/
+  assert(event != NULL);
+  assert(event->header.event_domain == EVEL_DOMAIN_HEARTBEAT_FIELD);
+  assert(name != NULL);
+  assert(value != NULL);
+
+  EVEL_DEBUG("Adding name=%s value=%s", name, value);
+  nv_pair = malloc(sizeof(OTHER_FIELD));
+  assert(nv_pair != NULL);
+  nv_pair->name = strdup(name);
+  nv_pair->value = strdup(value);
+  assert(nv_pair->name != NULL);
+  assert(nv_pair->value != NULL);
+
+  dlist_push_last(&event->additional_info, nv_pair);
+
+  EVEL_EXIT();
+}
+
+/**************************************************************************//**
+ * Set the Interval property of the Heartbeat fields event.
+ *
+ * @note  The property is treated as immutable: it is only valid to call
+ *        the setter once.  However, we don't assert if the caller tries to
+ *        overwrite, just ignoring the update instead.
+ *
+ * @param event         Pointer to the Heartbeat fields event.
+ * @param product_id    The vendor product id to be set. ASCIIZ string. The
+ *                      caller does not need to preserve the value once the
+ *                      function returns.
+ *****************************************************************************/
+void evel_hrtbt_interval_set(EVENT_HEARTBEAT_FIELD * const event,
+                                 const int interval)
+{
+  EVEL_ENTER();
+
+  /***************************************************************************/
+  /* Check preconditions and call evel_set_option_string.                    */
+  /***************************************************************************/
+  assert(event != NULL);
+  assert(event->header.event_domain == EVEL_DOMAIN_HEARTBEAT_FIELD);
+  assert(interval > 0);
+
+  event->heartbeat_interval = interval;
+  EVEL_EXIT();
+}
+
+
+/**************************************************************************//**
+ * Encode the Heartbeat fields in JSON according to AT&T's schema for the
+ * event type.
+ *
+ * @param jbuf          Pointer to the ::EVEL_JSON_BUFFER to encode into.
+ * @param event         Pointer to the ::EVENT_HEADER to encode.
+ *****************************************************************************/
+void evel_json_encode_hrtbt_field(EVEL_JSON_BUFFER * const jbuf,
+                                EVENT_HEARTBEAT_FIELD * const event)
+{
+  OTHER_FIELD * nv_pair = NULL;
+  DLIST_ITEM * dlist_item = NULL;
+
+  EVEL_ENTER();
+
+  /***************************************************************************/
+  /* Check preconditions.                                                    */
+  /***************************************************************************/
+  assert(event != NULL);
+  assert(event->header.event_domain == EVEL_DOMAIN_HEARTBEAT_FIELD);
+
+  evel_json_encode_header(jbuf, &event->header);
+  evel_json_open_named_object(jbuf, "heartbeatField");
+
+  /***************************************************************************/
+  /* Mandatory fields                                                        */
+  /***************************************************************************/
+  evel_enc_version(jbuf, "heartbeatFieldsVersion", event->major_version,event->minor_version);
+  evel_enc_kv_int(jbuf, "heartbeatInterval", event->heartbeat_interval);
+
+  /***************************************************************************/
+  /* Optional fields                                                         */
+  /***************************************************************************/
+
+  /***************************************************************************/
+  /* Checkpoint, so that we can wind back if all fields are suppressed.      */
+  /***************************************************************************/
+  evel_json_checkpoint(jbuf);
+  if (evel_json_open_opt_named_list(jbuf, "additionalFields"))
+  {
+    bool added = false;
+
+    dlist_item = dlist_get_first(&event->additional_info);
+    while (dlist_item != NULL)
+    {
+      nv_pair = (OTHER_FIELD *) dlist_item->item;
+      assert(nv_pair != NULL);
+
+      if (!evel_throttle_suppress_nv_pair(jbuf->throttle_spec,
+                                          "additionalFields",
+                                          nv_pair->name))
+      {
+        evel_json_open_object(jbuf);
+        evel_enc_kv_string(jbuf, "name", nv_pair->name);
+        evel_enc_kv_string(jbuf, "value", nv_pair->value);
+        evel_json_close_object(jbuf);
+        added = true;
+      }
+      dlist_item = dlist_get_next(dlist_item);
+    }
+    evel_json_close_list(jbuf);
+
+    /*************************************************************************/
+    /* If we've not written anything, rewind to before we opened the list.   */
+    /*************************************************************************/
+    if (!added)
+    {
+      evel_json_rewind(jbuf);
+    }
+  }
+
+  evel_json_close_object(jbuf);
+
+  EVEL_EXIT();
+}
+
+/**************************************************************************//**
+ * Free a Heartbeat fields event.
+ *
+ * Free off the event supplied.  Will free all the contained allocated memory.
+ *
+ * @note It does not free the event itself, since that may be part of a larger
+ * structure.
+ *****************************************************************************/
+void evel_free_hrtbt_field(EVENT_HEARTBEAT_FIELD * const event)
+{
+  OTHER_FIELD * nv_pair = NULL;
+
+  EVEL_ENTER();
+
+  /***************************************************************************/
+  /* Check preconditions.                                                    */
+  /***************************************************************************/
+  assert(event != NULL);
+  assert(event->header.event_domain == EVEL_DOMAIN_HEARTBEAT_FIELD);
+
+  /***************************************************************************/
+  /* Free all internal strings then the header itself.                       */
+  /***************************************************************************/
+  nv_pair = dlist_pop_last(&event->additional_info);
+  while (nv_pair != NULL)
+  {
+    EVEL_DEBUG("Freeing Other Field (%s, %s)", nv_pair->name, nv_pair->value);
+    free(nv_pair->name);
+    free(nv_pair->value);
+    free(nv_pair);
+    nv_pair = dlist_pop_last(&event->additional_info);
+  }
+  evel_free_header(&event->header);
+
+  EVEL_EXIT();
+}