diff options
Diffstat (limited to 'VES5.0/evel/evel-library/code/evel_library/evel_syslog.c')
| -rw-r--r-- | VES5.0/evel/evel-library/code/evel_library/evel_syslog.c | 514 |
1 files changed, 514 insertions, 0 deletions
diff --git a/VES5.0/evel/evel-library/code/evel_library/evel_syslog.c b/VES5.0/evel/evel-library/code/evel_library/evel_syslog.c new file mode 100644 index 00000000..b1267065 --- /dev/null +++ b/VES5.0/evel/evel-library/code/evel_library/evel_syslog.c @@ -0,0 +1,514 @@ +/**************************************************************************//** + * @file + * Implementation of EVEL functions relating to the Syslog. + * + * License + * ------- + * + * 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_throttle.h" + +/**************************************************************************//** + * Create a new Syslog event. + * + * @note The mandatory fields on the Syslog 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 + * Syslog has immutable properties. + * @param event_source_type The type of Syslog event source. + * @param syslog_msg The Syslog event message. + * @param syslog_tag The messgaeId identifying the type of message. + * @returns pointer to the newly manufactured ::EVENT_SYSLOG. If the event is + * not used (i.e. posted) it must be released using + * ::evel_free_syslog. + * @retval NULL Failed to create the event. + *****************************************************************************/ +EVENT_SYSLOG * evel_new_syslog(EVEL_SOURCE_TYPES event_source_type, + const char * const syslog_msg, + const char * const syslog_tag) +{ + EVENT_SYSLOG * syslog = NULL; + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(event_source_type < EVEL_MAX_SOURCE_TYPES); + assert(syslog_msg != NULL); + assert(syslog_tag != NULL); + + /***************************************************************************/ + /* Allocate the Syslog. */ + /***************************************************************************/ + syslog = malloc(sizeof(EVENT_SYSLOG)); + if (syslog == NULL) + { + log_error_state("Out of memory"); + goto exit_label; + } + memset(syslog, 0, sizeof(EVENT_SYSLOG)); + EVEL_DEBUG("New Syslog is at %lp", syslog); + + /***************************************************************************/ + /* Initialize the header & the Syslog fields. Optional string values are */ + /* uninitialized (NULL). */ + /***************************************************************************/ + evel_init_header(&syslog->header,"Syslog"); + syslog->header.event_domain = EVEL_DOMAIN_SYSLOG; + syslog->major_version = EVEL_SYSLOG_MAJOR_VERSION; + syslog->minor_version = EVEL_SYSLOG_MINOR_VERSION; + syslog->event_source_type = event_source_type; + syslog->syslog_msg = strdup(syslog_msg); + syslog->syslog_tag = strdup(syslog_tag); + evel_init_option_int(&syslog->syslog_facility); + evel_init_option_int(&syslog->syslog_proc_id); + evel_init_option_int(&syslog->syslog_ver); + evel_init_option_string(&syslog->additional_filters); + evel_init_option_string(&syslog->event_source_host); + evel_init_option_string(&syslog->syslog_proc); + evel_init_option_string(&syslog->syslog_s_data); + evel_init_option_string(&syslog->syslog_sdid); + evel_init_option_string(&syslog->syslog_severity); + +exit_label: + EVEL_EXIT(); + return syslog; +} + +/**************************************************************************//** + * Set the Event Type property of the Syslog. + * + * @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 syslog Pointer to the syslog. + * @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_syslog_type_set(EVENT_SYSLOG * syslog, + const char * const type) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions and call evel_header_type_set. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + evel_header_type_set(&syslog->header, type); + + EVEL_EXIT(); +} + +/**************************************************************************//** + * Add an additional value name/value pair to the Syslog. + * + * 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 syslog Pointer to the syslog. + * @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_syslog_addl_filter_set(EVENT_SYSLOG * syslog, + char * filter) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(filter != NULL); + + evel_set_option_string(&syslog->additional_filters, + filter, + "Syslog filter string"); + + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Event Source Host property of the Syslog. + * + * @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 syslog Pointer to the Syslog. + * @param host The Event Source Host to be set. ASCIIZ string. The caller + * does not need to preserve the value once the function + * returns. + *****************************************************************************/ +void evel_syslog_event_source_host_set(EVENT_SYSLOG * syslog, + const char * const host) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(host != NULL); + + evel_set_option_string(&syslog->event_source_host, + host, + "Event Source Host"); + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Facility property of the Syslog. + * + * @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 syslog Pointer to the Syslog. + * @param facility The Syslog Facility to be set. ASCIIZ string. The caller + * does not need to preserve the value once the function + * returns. + *****************************************************************************/ +void evel_syslog_facility_set(EVENT_SYSLOG * syslog, + EVEL_SYSLOG_FACILITIES facility) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(facility < EVEL_MAX_SYSLOG_FACILITIES); + + evel_set_option_int(&syslog->syslog_facility, + facility, + "Facility"); + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Process property of the Syslog. + * + * @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 syslog Pointer to the Syslog. + * @param proc The Process to be set. ASCIIZ string. The caller does not + * need to preserve the value once the function returns. + *****************************************************************************/ +void evel_syslog_proc_set(EVENT_SYSLOG * syslog, const char * const proc) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(proc != NULL); + + evel_set_option_string(&syslog->syslog_proc, proc, "Process"); + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Process ID property of the Syslog. + * + * @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 syslog Pointer to the Syslog. + * @param proc_id The Process ID to be set. ASCIIZ string. The caller does + * not need to preserve the value once the function returns. + *****************************************************************************/ +void evel_syslog_proc_id_set(EVENT_SYSLOG * syslog, int proc_id) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(proc_id > 0); + + evel_set_option_int(&syslog->syslog_proc_id, + proc_id, + "Process ID"); + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Version property of the Syslog. + * + * @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 syslog Pointer to the Syslog. + * @param version The Version to be set. ASCIIZ string. The caller does not + * need to preserve the value once the function returns. + *****************************************************************************/ +void evel_syslog_version_set(EVENT_SYSLOG * syslog, int version) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(version >= 0); + + evel_set_option_int(&syslog->syslog_ver, + version, + "Version"); + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Structured Data property of the Syslog. + * + * @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 syslog Pointer to the Syslog. + * @param s_data The Structured Data to be set. ASCIIZ string. The caller + * does not need to preserve the value once the function + * returns. + *****************************************************************************/ +void evel_syslog_s_data_set(EVENT_SYSLOG * syslog, const char * const s_data) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(s_data != NULL); + + evel_set_option_string(&syslog->syslog_s_data, + s_data, + "Structured Data"); + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Structured SDID property of the Syslog. + * + * @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 syslog Pointer to the Syslog. + * @param sdid The Structured Data to be set. ASCIIZ string. name@number + * Caller does not need to preserve the value once the function + * returns. + *****************************************************************************/ +void evel_syslog_sdid_set(EVENT_SYSLOG * syslog, const char * const sdid) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(sdid != NULL); + + evel_set_option_string(&syslog->syslog_sdid, + sdid, + "SdId set"); + EVEL_EXIT(); +} + +/**************************************************************************//** + * Set the Structured Severity property of the Syslog. + * + * @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 syslog Pointer to the Syslog. + * @param sdid The Structured Data to be set. ASCIIZ string. + * Caller does not need to preserve the value once the function + * returns. + *****************************************************************************/ +void evel_syslog_severity_set(EVENT_SYSLOG * syslog, const char * const severty) +{ + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(syslog != NULL); + assert(syslog->header.event_domain == EVEL_DOMAIN_SYSLOG); + assert(severty != NULL); + + if( !strcmp(severty,"Alert") || !strcmp(severty,"Critical") || !strcmp(severty,"Debug") || + !strcmp(severty,"Emergency") || !strcmp(severty,"Error") || !strcmp(severty,"Info") || + !strcmp(severty,"Notice") || !strcmp(severty,"Warning") ) + { + evel_set_option_string(&syslog->syslog_severity, + severty, + "Severity set"); + } + EVEL_EXIT(); +} + +/**************************************************************************//** + * Encode the Syslog 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_syslog(EVEL_JSON_BUFFER * jbuf, + EVENT_SYSLOG * event) +{ + char * event_source_type; + + EVEL_ENTER(); + + /***************************************************************************/ + /* Check preconditions. */ + /***************************************************************************/ + assert(event != NULL); + assert(event->header.event_domain == EVEL_DOMAIN_SYSLOG); + + event_source_type = evel_source_type(event->event_source_type); + + evel_json_encode_header(jbuf, &event->header); + evel_json_open_named_object(jbuf, "syslogFields"); + + evel_enc_kv_opt_string(jbuf, "additionalFields", &event->additional_filters); + /***************************************************************************/ + /* Mandatory fields */ + /***************************************************************************/ + evel_enc_kv_string(jbuf, "eventSourceType", event_source_type); + evel_enc_kv_string(jbuf, "syslogMsg", event->syslog_msg); + evel_enc_kv_string(jbuf, "syslogTag", event->syslog_tag); + evel_enc_version( + jbuf, "syslogFieldsVersion", event->major_version, event->minor_version); + + /***************************************************************************/ + /* Optional fields */ + /***************************************************************************/ + evel_enc_kv_opt_string(jbuf, "eventSourceHost", &event->event_source_host); + evel_enc_kv_opt_int(jbuf, "syslogFacility", &event->syslog_facility); + evel_enc_kv_opt_int(jbuf, "syslogPri", &event->syslog_priority); + evel_enc_kv_opt_string(jbuf, "syslogProc", &event->syslog_proc); + evel_enc_kv_opt_int(jbuf, "syslogProcId", &event->syslog_proc_id); + evel_enc_kv_opt_string(jbuf, "syslogSData", &event->syslog_s_data); + evel_enc_kv_opt_string(jbuf, "syslogSdId", &event->syslog_sdid); + evel_enc_kv_opt_string(jbuf, "syslogSev", &event->syslog_severity); + evel_enc_kv_opt_int(jbuf, "syslogVer", &event->syslog_ver); + evel_json_close_object(jbuf); + + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_KERNEL == 0); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_USER == 1); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_MAIL == 2); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_SYSTEM_DAEMON == 3); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_SECURITY_AUTH == 4); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_INTERNAL == 5); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LINE_PRINTER == 6); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_NETWORK_NEWS == 7); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_UUCP == 8); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_CLOCK_DAEMON == 9); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_SECURITY_AUTH2 == 10); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_FTP_DAEMON == 11); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_NTP == 12); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOG_AUDIT == 13); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOG_ALERT == 14); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_CLOCK_DAEMON2 == 15); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOCAL0 == 16); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOCAL1 == 17); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOCAL2 == 18); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOCAL3 == 19); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOCAL4 == 20); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOCAL5 == 21); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOCAL6 == 22); + EVEL_CT_ASSERT(EVEL_SYSLOG_FACILITY_LOCAL7 == 23); + + EVEL_EXIT(); +} + +/**************************************************************************//** + * Free a Syslog. + * + * Free off the Syslog supplied. Will free all the contained allocated memory. + * + * @note It does not free the Syslog itself, since that may be part of a + * larger structure. + *****************************************************************************/ +void evel_free_syslog(EVENT_SYSLOG * event) +{ + + 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_SYSLOG); + + /***************************************************************************/ + /* Free all internal strings then the header itself. */ + /***************************************************************************/ + + evel_free_option_string(&event->additional_filters); + evel_free_option_string(&event->event_source_host); + free(event->syslog_msg); + evel_free_option_string(&event->syslog_proc); + evel_free_option_string(&event->syslog_s_data); + evel_free_option_string(&event->syslog_sdid); + evel_free_option_string(&event->syslog_severity); + free(event->syslog_tag); + evel_free_header(&event->header); + + EVEL_EXIT(); +} |