/******************************************************************************
* *
* Function: zbx_itemkey_extract_global_regexps *
* *
* Purpose: extract global regular expression names from item key *
* *
* Parameters: key - [IN] the item key to parse *
* regexps - [OUT] the extracted regular expression names *
* *
******************************************************************************/
static void zbx_itemkey_extract_global_regexps(const char *key, zbx_vector_str_t *regexps)
{
#define ZBX_KEY_LOG 1
#define ZBX_KEY_EVENTLOG 2
AGENT_REQUEST request;
int item_key;
const char *param;
if (0 == strncmp(key, "log[", 4) || 0 == strncmp(key, "logrt[", 6))
item_key = ZBX_KEY_LOG;
else if (0 == strncmp(key, "eventlog[", 9))
item_key = ZBX_KEY_EVENTLOG;
else
return;
init_request(&request);
if(SUCCEED != parse_item_key(key, &request))
goto out;
/* "params" parameter */
if (NULL != (param = get_rparam(&request, 1)) && '@' == *param)
zbx_vector_str_append_uniq(regexps, param + 1);
if (ZBX_KEY_EVENTLOG == item_key)
{
/* "severity" parameter */
if (NULL != (param = get_rparam(&request, 2)) && '@' == *param)
zbx_vector_str_append_uniq(regexps, param + 1);
/* "source" parameter */
if (NULL != (param = get_rparam(&request, 3)) && '@' == *param)
zbx_vector_str_append_uniq(regexps, param + 1);
/* "logeventid" parameter */
if (NULL != (param = get_rparam(&request, 4)) && '@' == *param)
zbx_vector_str_append_uniq(regexps, param + 1);
}
out:
free_request(&request);
}
/******************************************************************************
* *
* Function: send_list_of_active_checks_json *
* *
* Purpose: send list of active checks to the host *
* *
* Parameters: sock - open socket of server-agent connection *
* json - request buffer *
* *
* Return value: SUCCEED - list of active checks sent successfully *
* FAIL - an error occurred *
* *
* Author: Alexander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int send_list_of_active_checks_json(zbx_sock_t *sock, struct zbx_json_parse *jp)
{
const char *__function_name = "send_list_of_active_checks_json";
#define ZBX_KEY_OTHER 0
#define ZBX_KEY_LOG 1
#define ZBX_KEY_EVENTLOG 2
char host[HOST_HOST_LEN_MAX], params[MAX_STRING_LEN], tmp[MAX_STRING_LEN],
ip[INTERFACE_IP_LEN_MAX], error[MAX_STRING_LEN], *host_metadata = NULL;
struct zbx_json json;
int ret = FAIL, i;
zbx_uint64_t hostid;
size_t host_metadata_alloc = 1; /* for at least NUL-termination char */
unsigned short port;
zbx_vector_uint64_t itemids;
unsigned char item_key;
zbx_vector_ptr_t regexps;
zbx_vector_str_t names;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
zbx_vector_ptr_create(®exps);
zbx_vector_str_create(&names);
if (FAIL == zbx_json_value_by_name(jp, ZBX_PROTO_TAG_HOST, host, sizeof(host)))
{
zbx_snprintf(error, MAX_STRING_LEN, "%s", zbx_json_strerror());
goto error;
}
host_metadata = zbx_malloc(host_metadata, host_metadata_alloc);
if (FAIL == zbx_json_value_by_name_dyn(jp, ZBX_PROTO_TAG_HOST_METADATA,
&host_metadata, &host_metadata_alloc))
{
*host_metadata = '\0';
}
if (FAIL == zbx_json_value_by_name(jp, ZBX_PROTO_TAG_IP, ip, sizeof(ip)))
strscpy(ip, get_ip_by_socket(sock));
if (FAIL == zbx_json_value_by_name(jp, ZBX_PROTO_TAG_PORT, tmp, sizeof(tmp)))
*tmp = '\0';
if (FAIL == is_ushort(tmp, &port))
port = ZBX_DEFAULT_AGENT_PORT;
if (FAIL == get_hostid_by_host(host, ip, port, host_metadata, &hostid, error))
goto error;
zbx_vector_uint64_create(&itemids);
get_list_of_active_checks(hostid, &itemids);
zbx_json_init(&json, ZBX_JSON_STAT_BUF_LEN);
zbx_json_addstring(&json, ZBX_PROTO_TAG_RESPONSE, ZBX_PROTO_VALUE_SUCCESS, ZBX_JSON_TYPE_STRING);
zbx_json_addarray(&json, ZBX_PROTO_TAG_DATA);
if (0 != itemids.values_num)
{
DC_ITEM *dc_items;
int *errcodes, refresh_unsupported, now;
dc_items = zbx_malloc(NULL, sizeof(DC_ITEM) * itemids.values_num);
errcodes = zbx_malloc(NULL, sizeof(int) * itemids.values_num);
DCconfig_get_items_by_itemids(dc_items, itemids.values, errcodes, itemids.values_num);
DCconfig_get_config_data(&refresh_unsupported, CONFIG_REFRESH_UNSUPPORTED);
now = time(NULL);
for (i = 0; i < itemids.values_num; i++)
{
if (SUCCEED != errcodes[i])
{
zabbix_log(LOG_LEVEL_DEBUG, "%s() Item [" ZBX_FS_UI64 "] was not found in the"
" server cache. Not sending now.", __function_name, itemids.values[i]);
continue;
}
if (ITEM_STATUS_ACTIVE != dc_items[i].status)
continue;
if (HOST_STATUS_MONITORED != dc_items[i].host.status)
continue;
if (ITEM_STATE_NOTSUPPORTED == dc_items[i].state)
{
if (0 == refresh_unsupported || dc_items[i].lastclock + refresh_unsupported > now)
continue;
}
dc_items[i].key = zbx_strdup(dc_items[i].key, dc_items[i].key_orig);
substitute_key_macros(&dc_items[i].key, NULL, &dc_items[i], NULL, MACRO_TYPE_ITEM_KEY, NULL, 0);
zbx_json_addobject(&json, NULL);
zbx_json_addstring(&json, ZBX_PROTO_TAG_KEY, dc_items[i].key, ZBX_JSON_TYPE_STRING);
if (0 != strcmp(dc_items[i].key, dc_items[i].key_orig))
{
zbx_json_addstring(&json, ZBX_PROTO_TAG_KEY_ORIG,
dc_items[i].key_orig, ZBX_JSON_TYPE_STRING);
}
zbx_json_adduint64(&json, ZBX_PROTO_TAG_DELAY, dc_items[i].delay);
/* The agent expects ALWAYS to have lastlogsize and mtime tags. */
/* Removing those would cause older agents to fail. */
zbx_json_adduint64(&json, ZBX_PROTO_TAG_LOGLASTSIZE, dc_items[i].lastlogsize);
zbx_json_adduint64(&json, ZBX_PROTO_TAG_MTIME, dc_items[i].mtime);
zbx_json_close(&json);
if (0 == strncmp(dc_items[i].key, "log[", 4) || 0 == strncmp(dc_items[i].key, "logrt[", 6))
item_key = ZBX_KEY_LOG;
else if (0 == strncmp(dc_items[i].key, "eventlog[", 9))
item_key = ZBX_KEY_EVENTLOG;
else
item_key = ZBX_KEY_OTHER;
if (ZBX_KEY_OTHER != item_key && ZBX_COMMAND_WITH_PARAMS == parse_command(dc_items[i].key, NULL, 0, params, sizeof(params)))
{
/* "params" parameter */
if (0 == get_param(params, 2, tmp, sizeof(tmp)) && '@' == *tmp)
zbx_vector_str_append_uniq(&names, tmp + 1);
if (ZBX_KEY_EVENTLOG == item_key)
{
/* "severity" parameter */
if (0 == get_param(params, 3, tmp, sizeof(tmp)) && '@' == *tmp)
zbx_vector_str_append_uniq(&names, tmp + 1);
/* "source" parameter */
if (0 == get_param(params, 4, tmp, sizeof(tmp)) && '@' == *tmp)
zbx_vector_str_append_uniq(&names, tmp + 1);
/* "logeventid" parameter */
if (0 == get_param(params, 5, tmp, sizeof(tmp)) && '@' == *tmp)
zbx_vector_str_append_uniq(&names, tmp + 1);
}
}
zbx_free(dc_items[i].key);
}
DCconfig_clean_items(dc_items, errcodes, itemids.values_num);
zbx_free(errcodes);
zbx_free(dc_items);
}
zbx_vector_uint64_destroy(&itemids);
zbx_json_close(&json);
DCget_expressions_by_names(®exps, (const char * const *)names.values, names.values_num);
if (0 < regexps.values_num)
{
char buffer[32];
zbx_json_addarray(&json, ZBX_PROTO_TAG_REGEXP);
for (i = 0; i < regexps.values_num; i++)
{
zbx_expression_t *regexp = regexps.values[i];
zbx_json_addobject(&json, NULL);
zbx_json_addstring(&json, "name", regexp->name, ZBX_JSON_TYPE_STRING);
zbx_json_addstring(&json, "expression", regexp->expression, ZBX_JSON_TYPE_STRING);
zbx_snprintf(buffer, sizeof(buffer), "%d", regexp->expression_type);
zbx_json_addstring(&json, "expression_type", buffer, ZBX_JSON_TYPE_INT);
zbx_snprintf(buffer, sizeof(buffer), "%c", regexp->exp_delimiter);
zbx_json_addstring(&json, "exp_delimiter", buffer, ZBX_JSON_TYPE_STRING);
zbx_snprintf(buffer, sizeof(buffer), "%d", regexp->case_sensitive);
zbx_json_addstring(&json, "case_sensitive", buffer, ZBX_JSON_TYPE_INT);
zbx_json_close(&json);
}
zbx_json_close(&json);
}
zabbix_log(LOG_LEVEL_DEBUG, "%s() sending [%s]", __function_name, json.buffer);
alarm(CONFIG_TIMEOUT);
if (SUCCEED != zbx_tcp_send(sock, json.buffer))
strscpy(error, zbx_tcp_strerror());
else
ret = SUCCEED;
alarm(0);
zbx_json_free(&json);
goto out;
error:
zabbix_log(LOG_LEVEL_WARNING, "cannot send list of active checks to [%s]: %s", get_ip_by_socket(sock), error);
zbx_json_init(&json, ZBX_JSON_STAT_BUF_LEN);
zbx_json_addstring(&json, ZBX_PROTO_TAG_RESPONSE, ZBX_PROTO_VALUE_FAILED, ZBX_JSON_TYPE_STRING);
zbx_json_addstring(&json, ZBX_PROTO_TAG_INFO, error, ZBX_JSON_TYPE_STRING);
zabbix_log(LOG_LEVEL_DEBUG, "%s() sending [%s]", __function_name, json.buffer);
ret = zbx_tcp_send(sock, json.buffer);
zbx_json_free(&json);
out:
for (i = 0; i < names.values_num; i++)
zbx_free(names.values[i]);
zbx_vector_str_destroy(&names);
zbx_regexp_clean_expressions(®exps);
zbx_vector_ptr_destroy(®exps);
zbx_free(host_metadata);
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(ret));
return ret;
}
