diff options
Diffstat (limited to 'vnfs/VES/code/evel_library/evel_fault.c')
| -rw-r--r-- | vnfs/VES/code/evel_library/evel_fault.c | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/vnfs/VES/code/evel_library/evel_fault.c b/vnfs/VES/code/evel_library/evel_fault.c new file mode 100644 index 00000000..cbb80d71 --- /dev/null +++ b/vnfs/VES/code/evel_library/evel_fault.c @@ -0,0 +1,337 @@ +/**************************************************************************//** + * @file + * Implementation of EVEL functions relating to the Fault. + * + * License + * ------- + * + * Copyright(c) <2016>, AT&T Intellectual Property. All other rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: This product includes + * software developed by the AT&T. + * 4. Neither the name of AT&T nor the names of its contributors may be used to + * endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY AT&T INTELLECTUAL PROPERTY ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL AT&T INTELLECTUAL PROPERTY BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + *****************************************************************************/ + +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#include "evel.h" +#include "evel_internal.h" +#include "evel_throttle.h" + +/**************************************************************************//** + * Create a new fault event. + * + * @note The mandatory fields on the Fault 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 + * Fault has immutable properties. + * @param condition The condition indicated by the Fault. + * @param specific_problem The specific problem triggering the fault. + * @param priority The priority of the event. + * @param severity The severity of the Fault. + * @returns pointer to the newly manufactured ::EVENT_FAULT. If the event is + * not used (i.e. posted) it must be released using ::evel_free_fault. + * @retval NULL Failed to create the event. + *****************************************************************************/ +EVENT_FAULT * evel_new_fault(const char * const condition, + const char * const specific_problem, + EVEL_EVENT_PRIORITIES priority, + EVEL_SEVERITIES severity) +{ + EVENT_FAULT * fault = NULL; + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(condition != NULL); + assert(specific_problem != NULL); + assert(priority < EVEL_MAX_PRIORITIES); + assert(severity < EVEL_MAX_SEVERITIES); + + /***************************************************************************/ + /* Allocate the fault. */ + /***************************************************************************/ + fault = malloc(sizeof(EVENT_FAULT)); + if (fault == NULL) + { + log_error_state("Out of memory"); + goto exit_label; + } + memset(fault, 0, sizeof(EVENT_FAULT)); + EVEL_DEBUG("New fault is at %lp", fault); + + /***************************************************************************/ + /* Initialize the header & the fault fields. Optional string values are */ + /* uninitialized (NULL). */ + /***************************************************************************/ + evel_init_header(&fault->header); + fault->header.event_domain = EVEL_DOMAIN_FAULT; + fault->header.priority = priority; + fault->major_version = EVEL_FAULT_MAJOR_VERSION; + fault->minor_version = EVEL_FAULT_MINOR_VERSION; + fault->event_severity = severity; + fault->event_source_type = event_source_type; + fault->vf_status = EVEL_VF_STATUS_ACTIVE; + fault->alarm_condition = strdup(condition); + fault->specific_problem = strdup(specific_problem); + evel_init_option_string(&fault->alarm_interface_a); + dlist_initialize(&fault->additional_info); + +exit_label: + EVEL_EXIT(); + return fault; +} + +/**************************************************************************//** + * Add an additional value name/value pair to the Fault. + * + * 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 fault Pointer to the fault. + * @param name ASCIIZ string with the attribute's name. The caller + * does not need to preserve the value once the function + * returns. + * @param value ASCIIZ string with the attribute's value. The caller + * does not need to preserve the value once the function + * returns. + *****************************************************************************/ +void evel_fault_addl_info_add(EVENT_FAULT * fault, char * name, char * value) +{ + FAULT_ADDL_INFO * addl_info = NULL; + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(fault != NULL); + assert(fault->header.event_domain == EVEL_DOMAIN_FAULT); + assert(name != NULL); + assert(value != NULL); + + EVEL_DEBUG("Adding name=%s value=%s", name, value); + addl_info = malloc(sizeof(FAULT_ADDL_INFO)); + assert(addl_info != NULL); + memset(addl_info, 0, sizeof(FAULT_ADDL_INFO)); + addl_info->name = strdup(name); + addl_info->value = strdup(value); + assert(addl_info->name != NULL); + assert(addl_info->value != NULL); + + dlist_push_last(&fault->additional_info, addl_info); + + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Alarm Interface A property of the Fault. + * + * @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 fault Pointer to the fault. + * @param interface The Alarm Interface A to be set. ASCIIZ string. The caller + * does not need to preserve the value once the function + * returns. + *****************************************************************************/ +void evel_fault_interface_set(EVENT_FAULT * fault, + const char * const interface) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(fault != NULL); + assert(fault->header.event_domain == EVEL_DOMAIN_FAULT); + assert(interface != NULL); + + evel_set_option_string(&fault->alarm_interface_a, + interface, + "Alarm Interface A"); + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Event Type property of the Fault. + * + * @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 fault Pointer to the fault. + * @param type The Event Type to be set. ASCIIZ string. The caller + * does not need to preserve the value once the function + * returns. + *****************************************************************************/ +void evel_fault_type_set(EVENT_FAULT * fault, const char * const type) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions and call evel_header_type_set. */ + /***************************************************************************/ + assert(fault != NULL); + assert(fault->header.event_domain == EVEL_DOMAIN_FAULT); + evel_header_type_set(&fault->header, type); + + EVEL_EXIT(); +} + +/**************************************************************************//** + * Encode the fault in JSON according to AT&T's schema for the fault 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_fault(EVEL_JSON_BUFFER * jbuf, + EVENT_FAULT * event) +{ + FAULT_ADDL_INFO * addl_info = NULL; + DLIST_ITEM * addl_info_item = NULL; + char * fault_severity; + char * fault_source_type; + char * fault_vf_status; + + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(event != NULL); + assert(event->header.event_domain == EVEL_DOMAIN_FAULT); + + fault_severity = evel_severity(event->event_severity); + fault_source_type = evel_source_type(event->event_source_type); + fault_vf_status = evel_vf_status(event->vf_status); + + evel_json_encode_header(jbuf, &event->header); + evel_json_open_named_object(jbuf, "faultFields"); + + /***************************************************************************/ + /* Mandatory fields. */ + /***************************************************************************/ + evel_enc_kv_string(jbuf, "alarmCondition", event->alarm_condition); + evel_enc_kv_string(jbuf, "eventSeverity", fault_severity); + evel_enc_kv_string(jbuf, "eventSourceType", fault_source_type); + evel_enc_kv_string(jbuf, "specificProblem", event->specific_problem); + evel_enc_kv_string(jbuf, "vfStatus", fault_vf_status); + evel_enc_version( + jbuf, "faultFieldsVersion", event->major_version, event->minor_version); + + /***************************************************************************/ + /* 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, "alarmAdditionalInformation")) + { + bool item_added = false; + + addl_info_item = dlist_get_first(&event->additional_info); + while (addl_info_item != NULL) + { + addl_info = (FAULT_ADDL_INFO*) addl_info_item->item; + assert(addl_info != NULL); + + if (!evel_throttle_suppress_nv_pair(jbuf->throttle_spec, + "alarmAdditionalInformation", + addl_info->name)) + { + evel_json_open_object(jbuf); + evel_enc_kv_string(jbuf, "name", addl_info->name); + evel_enc_kv_string(jbuf, "value", addl_info->value); + evel_json_close_object(jbuf); + item_added = true; + } + addl_info_item = dlist_get_next(addl_info_item); + } + evel_json_close_list(jbuf); + + /*************************************************************************/ + /* If we've not written anything, rewind to before we opened the list. */ + /*************************************************************************/ + if (!item_added) + { + evel_json_rewind(jbuf); + } + } + evel_enc_kv_opt_string(jbuf, "alarmInterfaceA", &event->alarm_interface_a); + + evel_json_close_object(jbuf); + + EVEL_EXIT(); +} + +/**************************************************************************//** + * Free a Fault. + * + * Free off the Fault supplied. Will free all the contained allocated memory. + * + * @note It does not free the Fault itself, since that may be part of a + * larger structure. + *****************************************************************************/ +void evel_free_fault(EVENT_FAULT * event) +{ + FAULT_ADDL_INFO * addl_info = NULL; + + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. As an internal API we don't allow freeing NULL */ + /* events as we do on the public API. */ + /***************************************************************************/ + assert(event != NULL); + assert(event->header.event_domain == EVEL_DOMAIN_FAULT); + + /***************************************************************************/ + /* Free all internal strings then the header itself. */ + /***************************************************************************/ + addl_info = dlist_pop_last(&event->additional_info); + while (addl_info != NULL) + { + EVEL_DEBUG("Freeing Additional Info (%s, %s)", + addl_info->name, + addl_info->value); + free(addl_info->name); + free(addl_info->value); + free(addl_info); + addl_info = dlist_pop_last(&event->additional_info); + } + free(event->alarm_condition); + evel_free_option_string(&event->alarm_interface_a); + free(event->specific_problem); + evel_free_header(&event->header); + + EVEL_EXIT(); +} |