/******************************************************************************
* *
* Function: get_pinger_hosts *
* *
* Purpose: creates buffer which contains list of hosts to ping *
* *
* Parameters: *
* *
* Return value: SUCCEED - the file was created successfully *
* FAIL - otherwise *
* *
* Author: Alexei Vladishev, Alexander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
static void get_pinger_hosts(icmpitem_t **icmp_items, int *icmp_items_alloc, int *icmp_items_count)
{
const char *__function_name = "get_pinger_hosts";
DC_ITEM items[MAX_ITEMS];
int i, num, count, interval, size, timeout, rc;
char error[MAX_STRING_LEN], *addr = NULL;
icmpping_t icmpping;
icmppingsec_type_t type;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
num = DCconfig_get_poller_items(ZBX_POLLER_TYPE_PINGER, items, MAX_ITEMS);
for (i = 0; i < num; i++)
{
ZBX_STRDUP(items[i].key, items[i].key_orig);
rc = substitute_key_macros(&items[i].key, &items[i].host, NULL, MACRO_TYPE_ITEM_KEY,
error, sizeof(error));
if (SUCCEED == rc)
{
items[i].interface.addr = (1 == items[i].interface.useip ?
items[i].interface.ip_orig : items[i].interface.dns_orig);
rc = parse_key_params(items[i].key, items[i].interface.addr, &icmpping, &addr, &count,
&interval, &size, &timeout, &type, error, sizeof(error));
}
if (SUCCEED == rc)
{
add_icmpping_item(icmp_items, icmp_items_alloc, icmp_items_count, count, interval, size,
timeout, items[i].itemid, addr, icmpping, type);
}
else
{
zbx_timespec_t ts;
zbx_timespec(&ts);
dc_add_history(items[i].itemid, items[i].value_type, items[i].flags, NULL, &ts,
ITEM_STATUS_NOTSUPPORTED, error, 0, NULL, 0, 0, 0, 0);
DCrequeue_reachable_item(items[i].itemid, ITEM_STATUS_NOTSUPPORTED, ts.sec);
}
zbx_free(items[i].key);
}
DCconfig_clean_items(items, NULL, num);
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%d", __function_name, *icmp_items_count);
}
/******************************************************************************
* *
* Function: DBlld_get_item *
* *
* Purpose: finds item in the selected host by an item prototype key and *
* discovered data *
* *
******************************************************************************/
int DBlld_get_item(zbx_uint64_t hostid, const char *tmpl_key, struct zbx_json_parse *jp_row, zbx_uint64_t *itemid)
{
const char *__function_name = "DBlld_get_item";
DB_RESULT result;
DB_ROW row;
char *key = NULL, *key_esc;
int res = SUCCEED;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
if (NULL != jp_row)
{
key = zbx_strdup(key, tmpl_key);
substitute_key_macros(&key, NULL, NULL, jp_row, MACRO_TYPE_ITEM_KEY, NULL, 0);
key_esc = DBdyn_escape_string_len(key, ITEM_KEY_LEN);
}
else
key_esc = DBdyn_escape_string_len(tmpl_key, ITEM_KEY_LEN);
result = DBselect(
"select itemid"
" from items"
" where hostid=" ZBX_FS_UI64
" and key_='%s'",
hostid, key_esc);
zbx_free(key_esc);
zbx_free(key);
if (NULL == (row = DBfetch(result)))
{
zabbix_log(LOG_LEVEL_DEBUG, "%s() cannot find item [%s] on the host",
__function_name, key);
res = FAIL;
}
else
ZBX_STR2UINT64(*itemid, row[0]);
DBfree_result(result);
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(res));
return res;
}
/******************************************************************************
* *
* Function: process_trap_for_interface *
* *
* Purpose: add trap to all matching items for the specified interface *
* *
* Return value: SUCCEED - a matching item was found *
* FAIL - no matching item was found (including fallback items) *
* *
* Author: Rudolfs Kreicbergs *
* *
******************************************************************************/
static int process_trap_for_interface(zbx_uint64_t interfaceid, char *trap, zbx_timespec_t *ts)
{
DC_ITEM *items = NULL;
const char *regex;
char error[ITEM_ERROR_LEN_MAX];
size_t num, i;
int ret = FAIL, fb = -1, *lastclocks = NULL, *errcodes = NULL;
zbx_uint64_t *itemids = NULL;
unsigned char *states = NULL;
AGENT_RESULT *results = NULL;
AGENT_REQUEST request;
zbx_vector_ptr_t regexps;
zbx_vector_ptr_create(®exps);
num = DCconfig_get_snmp_items_by_interfaceid(interfaceid, &items);
itemids = zbx_malloc(itemids, sizeof(zbx_uint64_t) * num);
states = zbx_malloc(states, sizeof(unsigned char) * num);
lastclocks = zbx_malloc(lastclocks, sizeof(int) * num);
errcodes = zbx_malloc(errcodes, sizeof(int) * num);
results = zbx_malloc(results, sizeof(AGENT_RESULT) * num);
for (i = 0; i < num; i++)
{
init_result(&results[i]);
errcodes[i] = FAIL;
items[i].key = zbx_strdup(items[i].key, items[i].key_orig);
if (SUCCEED != substitute_key_macros(&items[i].key, NULL, &items[i], NULL,
MACRO_TYPE_ITEM_KEY, error, sizeof(error)))
{
SET_MSG_RESULT(&results[i], zbx_strdup(NULL, error));
errcodes[i] = NOTSUPPORTED;
continue;
}
if (0 == strcmp(items[i].key, "snmptrap.fallback"))
{
fb = i;
continue;
}
init_request(&request);
if (SUCCEED != parse_item_key(items[i].key, &request))
goto next;
if (0 != strcmp(get_rkey(&request), "snmptrap"))
goto next;
if (1 < get_rparams_num(&request))
goto next;
if (NULL != (regex = get_rparam(&request, 0)))
{
if ('@' == *regex)
{
DCget_expressions_by_name(®exps, regex + 1);
if (0 == regexps.values_num)
{
SET_MSG_RESULT(&results[i], zbx_dsprintf(NULL,
"Global regular expression \"%s\" does not exist.", regex + 1));
errcodes[i] = NOTSUPPORTED;
goto next;
}
}
if (SUCCEED != regexp_match_ex(®exps, trap, regex, ZBX_CASE_SENSITIVE))
goto next;
}
if (SUCCEED == set_result_type(&results[i], items[i].value_type, items[i].data_type, trap))
errcodes[i] = SUCCEED;
else
errcodes[i] = NOTSUPPORTED;
ret = SUCCEED;
next:
free_request(&request);
}
if (FAIL == ret && -1 != fb)
{
if (SUCCEED == set_result_type(&results[fb], items[fb].value_type, items[fb].data_type, trap))
errcodes[fb] = SUCCEED;
else
errcodes[fb] = NOTSUPPORTED;
ret = SUCCEED;
}
for (i = 0; i < num; i++)
{
switch (errcodes[i])
{
case SUCCEED:
if (ITEM_VALUE_TYPE_LOG == items[i].value_type)
{
calc_timestamp(results[i].log->value, &results[i].log->timestamp,
items[i].logtimefmt);
}
items[i].state = ITEM_STATE_NORMAL;
dc_add_history(items[i].itemid, items[i].value_type, items[i].flags, &results[i],
ts, items[i].state, NULL);
itemids[i] = items[i].itemid;
states[i] = items[i].state;
lastclocks[i] = ts->sec;
break;
case NOTSUPPORTED:
items[i].state = ITEM_STATE_NOTSUPPORTED;
dc_add_history(items[i].itemid, items[i].value_type, items[i].flags, NULL,
ts, items[i].state, results[i].msg);
itemids[i] = items[i].itemid;
states[i] = items[i].state;
lastclocks[i] = ts->sec;
break;
}
zbx_free(items[i].key);
free_result(&results[i]);
}
zbx_free(results);
DCrequeue_items(itemids, states, lastclocks, NULL, NULL, errcodes, num);
zbx_free(errcodes);
zbx_free(lastclocks);
zbx_free(states);
zbx_free(itemids);
DCconfig_clean_items(items, NULL, num);
zbx_free(items);
zbx_regexp_clean_expressions(®exps);
zbx_vector_ptr_destroy(®exps);
dc_flush_history();
return ret;
}
/******************************************************************************
* *
* 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";
char host[HOST_HOST_LEN_MAX], *name_esc, params[MAX_STRING_LEN],
pattern[MAX_STRING_LEN], tmp[32],
key_severity[MAX_STRING_LEN], key_logeventid[MAX_STRING_LEN],
ip[INTERFACE_IP_LEN_MAX];
DB_RESULT result;
DB_ROW row;
struct zbx_json json;
int res = FAIL, refresh_unsupported, now;
zbx_uint64_t hostid;
char error[MAX_STRING_LEN], *key = NULL;
DC_ITEM dc_item;
unsigned short port;
char **regexp = NULL;
int regexp_alloc = 0;
int regexp_num = 0, n;
char *sql = NULL;
size_t sql_alloc = 2 * ZBX_KIBIBYTE, sql_offset = 0;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
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;
}
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, &hostid, error))
goto error;
DCconfig_get_config_data(&refresh_unsupported, CONFIG_REFRESH_UNSUPPORTED);
now = time(NULL);
sql = zbx_malloc(sql, sql_alloc);
name_esc = DBdyn_escape_string(host);
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset,
"select i.key_,i.delay,i.lastlogsize,i.mtime"
" from items i,hosts h"
" where i.hostid=h.hostid"
" and h.status=%d"
" and i.type=%d"
" and i.flags<>%d"
" and h.hostid=" ZBX_FS_UI64
" and h.proxy_hostid is null",
HOST_STATUS_MONITORED,
ITEM_TYPE_ZABBIX_ACTIVE,
ZBX_FLAG_DISCOVERY_CHILD,
hostid);
zbx_free(name_esc);
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);
result = DBselect("%s", sql);
while (NULL != (row = DBfetch(result)))
{
if (FAIL == DCconfig_get_item_by_key(&dc_item, (zbx_uint64_t)0, host, row[0]))
{
zabbix_log(LOG_LEVEL_DEBUG, "%s() Item '%s' was not found in the server cache. Not sending now.", __function_name, row[0]);
continue;
}
if (ITEM_STATUS_NOTSUPPORTED == dc_item.status)
{
if (0 == refresh_unsupported || dc_item.lastclock + refresh_unsupported > now)
{
DCconfig_clean_items(&dc_item, NULL, 1);
continue;
}
}
zabbix_log(LOG_LEVEL_DEBUG, "%s() Item '%s' was successfully found in the server cache. Sending.", __function_name, row[0]);
ZBX_STRDUP(key, row[0]);
substitute_key_macros(&key, NULL, &dc_item, NULL, MACRO_TYPE_ITEM_KEY, NULL, 0);
DCconfig_clean_items(&dc_item, NULL, 1);
zbx_json_addobject(&json, NULL);
zbx_json_addstring(&json, ZBX_PROTO_TAG_KEY, key, ZBX_JSON_TYPE_STRING);
if (0 != strcmp(key, row[0]))
zbx_json_addstring(&json, ZBX_PROTO_TAG_KEY_ORIG, row[0], ZBX_JSON_TYPE_STRING);
zbx_json_addstring(&json, ZBX_PROTO_TAG_DELAY, row[1], ZBX_JSON_TYPE_INT);
/* The agent expects ALWAYS to have lastlogsize and mtime tags. Removing those would cause older agents to fail. */
zbx_json_addstring(&json, ZBX_PROTO_TAG_LOGLASTSIZE, row[2], ZBX_JSON_TYPE_INT);
zbx_json_addstring(&json, ZBX_PROTO_TAG_MTIME, row[3], ZBX_JSON_TYPE_INT);
zbx_json_close(&json);
/* special processing for log[] and logrt[] items */
do { /* simple try realization */
/* log[filename,pattern,encoding,maxlinespersec] */
/* logrt[filename_format,pattern,encoding,maxlinespersec] */
if (0 != strncmp(key, "log[", 4) && 0 != strncmp(key, "logrt[", 6))
break;
if (2 != parse_command(key, NULL, 0, params, sizeof(params)))
break;
/* dealing with `pattern' parameter */
if (0 == get_param(params, 2, pattern, sizeof(pattern)) &&
*pattern == '@')
add_regexp_name(®exp, ®exp_alloc, ®exp_num, pattern + 1);
} while (0); /* simple try realization */
/* special processing for eventlog[] items */
do { /* simple try realization */
/* eventlog[filename,pattern,severity,source,logeventid,maxlinespersec] */
if (0 != strncmp(key, "eventlog[", 9))
break;
if (2 != parse_command(key, NULL, 0, params, sizeof(params)))
break;
/* dealing with `pattern' parameter */
if (0 == get_param(params, 2, pattern, sizeof(pattern)) &&
*pattern == '@')
add_regexp_name(®exp, ®exp_alloc, ®exp_num, pattern + 1);
/* dealing with `severity' parameter */
if (0 == get_param(params, 3, key_severity, sizeof(key_severity)) &&
*key_severity == '@')
add_regexp_name(®exp, ®exp_alloc, ®exp_num, key_severity + 1);
/* dealing with `logeventid' parameter */
if (0 == get_param(params, 5, key_logeventid, sizeof(key_logeventid)) &&
*key_logeventid == '@')
add_regexp_name(®exp, ®exp_alloc, ®exp_num, key_logeventid + 1);
} while (0); /* simple try realization */
zbx_free(key);
}
zbx_json_close(&json);
DBfree_result(result);
if (0 != regexp_num)
{
zbx_json_addarray(&json, ZBX_PROTO_TAG_REGEXP);
sql_offset = 0;
zbx_strcpy_alloc(&sql, &sql_alloc, &sql_offset,
"select r.name,e.expression,e.expression_type,e.exp_delimiter,e.case_sensitive"
" from regexps r,expressions e"
" where r.regexpid=e.regexpid"
" and r.name in (");
for (n = 0; n < regexp_num; n++)
{
name_esc = DBdyn_escape_string(regexp[n]);
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, "%s'%s'",
n == 0 ? "" : ",",
name_esc);
zbx_free(name_esc);
zbx_free(regexp[n]);
}
zbx_chrcpy_alloc(&sql, &sql_alloc, &sql_offset, ')');
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, DB_NODE, DBnode_local("r.regexpid"));
result = DBselect("%s", sql);
while (NULL != (row = DBfetch(result)))
{
zbx_json_addobject(&json, NULL);
zbx_json_addstring(&json, "name", row[0], ZBX_JSON_TYPE_STRING);
zbx_json_addstring(&json, "expression", row[1], ZBX_JSON_TYPE_STRING);
zbx_json_addstring(&json, "expression_type", row[2], ZBX_JSON_TYPE_INT);
zbx_json_addstring(&json, "exp_delimiter", row[3], ZBX_JSON_TYPE_STRING);
zbx_json_addstring(&json, "case_sensitive", row[4], ZBX_JSON_TYPE_INT);
zbx_json_close(&json);
}
DBfree_result(result);
}
zbx_free(regexp);
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
res = SUCCEED;
alarm(0);
zbx_json_free(&json);
zbx_free(sql);
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);
res = zbx_tcp_send(sock, json.buffer);
zbx_json_free(&json);
out:
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(res));
return res;
}
/******************************************************************************
* *
* Function: discover_service *
* *
* Purpose: check if service is available and update database *
* *
* Parameters: service type, ip address, port number *
* *
* Author: Alexei Vladishev *
* *
******************************************************************************/
static int discover_service(DB_DCHECK *dcheck, char *ip, int port, char *value)
{
const char *__function_name = "discover_service";
int ret = SUCCEED;
char key[MAX_STRING_LEN], error[ITEM_ERROR_LEN_MAX];
const char *service = NULL;
AGENT_RESULT result;
DC_ITEM item;
ZBX_FPING_HOST host;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
init_result(&result);
*value = '\0';
switch (dcheck->type)
{
case SVC_SSH:
service = "ssh";
break;
case SVC_LDAP:
service = "ldap";
break;
case SVC_SMTP:
service = "smtp";
break;
case SVC_FTP:
service = "ftp";
break;
case SVC_HTTP:
service = "http";
break;
case SVC_POP:
service = "pop";
break;
case SVC_NNTP:
service = "nntp";
break;
case SVC_IMAP:
service = "imap";
break;
case SVC_TCP:
service = "tcp";
break;
case SVC_HTTPS:
service = "https";
break;
case SVC_TELNET:
service = "telnet";
break;
case SVC_AGENT:
case SVC_SNMPv1:
case SVC_SNMPv2c:
case SVC_SNMPv3:
case SVC_ICMPPING:
break;
default:
ret = FAIL;
break;
}
if (SUCCEED == ret)
{
alarm(CONFIG_TIMEOUT);
switch (dcheck->type)
{
/* simple checks */
case SVC_SSH:
case SVC_LDAP:
case SVC_SMTP:
case SVC_FTP:
case SVC_HTTP:
case SVC_POP:
case SVC_NNTP:
case SVC_IMAP:
case SVC_TCP:
case SVC_HTTPS:
case SVC_TELNET:
zbx_snprintf(key, sizeof(key), "net.tcp.service[%s,%s,%d]", service, ip, port);
if (SUCCEED != process(key, 0, &result) || NULL == GET_UI64_RESULT(&result) ||
0 == result.ui64)
{
ret = FAIL;
}
break;
/* agent and SNMP checks */
case SVC_AGENT:
case SVC_SNMPv1:
case SVC_SNMPv2c:
case SVC_SNMPv3:
memset(&item, 0, sizeof(DC_ITEM));
strscpy(item.key_orig, dcheck->key_);
item.key = item.key_orig;
item.interface.useip = 1;
item.interface.addr = ip;
item.interface.port = port;
item.value_type = ITEM_VALUE_TYPE_STR;
switch (dcheck->type)
{
case SVC_SNMPv1:
item.type = ITEM_TYPE_SNMPv1;
break;
case SVC_SNMPv2c:
item.type = ITEM_TYPE_SNMPv2c;
break;
case SVC_SNMPv3:
item.type = ITEM_TYPE_SNMPv3;
break;
default:
item.type = ITEM_TYPE_ZABBIX;
break;
}
if (SVC_AGENT == dcheck->type)
{
if (SUCCEED == get_value_agent(&item, &result) && NULL != GET_STR_RESULT(&result))
zbx_strlcpy(value, result.str, DSERVICE_VALUE_LEN_MAX);
else
ret = FAIL;
}
else
#ifdef HAVE_SNMP
{
item.snmp_community = strdup(dcheck->snmp_community);
item.snmp_oid = strdup(dcheck->key_);
substitute_simple_macros(NULL, NULL, NULL, NULL, NULL, NULL,
&item.snmp_community, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_key_macros(&item.snmp_oid, NULL, NULL, NULL,
MACRO_TYPE_SNMP_OID, NULL, 0);
if (ITEM_TYPE_SNMPv3 == item.type)
{
item.snmpv3_securityname = strdup(dcheck->snmpv3_securityname);
item.snmpv3_securitylevel = dcheck->snmpv3_securitylevel;
item.snmpv3_authpassphrase = strdup(dcheck->snmpv3_authpassphrase);
item.snmpv3_privpassphrase = strdup(dcheck->snmpv3_privpassphrase);
substitute_simple_macros(NULL, NULL, NULL, NULL, NULL, NULL,
&item.snmpv3_securityname, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, NULL, NULL, NULL,
&item.snmpv3_authpassphrase, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, NULL, NULL, NULL,
&item.snmpv3_privpassphrase, MACRO_TYPE_ITEM_FIELD, NULL, 0);
}
if (SUCCEED == get_value_snmp(&item, &result) && NULL != GET_STR_RESULT(&result))
zbx_strlcpy(value, result.str, DSERVICE_VALUE_LEN_MAX);
else
ret = FAIL;
zbx_free(item.snmp_community);
zbx_free(item.snmp_oid);
if (ITEM_TYPE_SNMPv3 == item.type)
{
zbx_free(item.snmpv3_securityname);
zbx_free(item.snmpv3_authpassphrase);
zbx_free(item.snmpv3_privpassphrase);
}
}
#else
ret = FAIL;
#endif /* HAVE_SNMP */
if (FAIL == ret && ISSET_MSG(&result))
{
zabbix_log(LOG_LEVEL_DEBUG, "discovery: item [%s] error: %s",
item.key, result.msg);
}
break;
case SVC_ICMPPING:
memset(&host, 0, sizeof(host));
host.addr = strdup(ip);
if (SUCCEED != do_ping(&host, 1, 3, 0, 0, 0, error, sizeof(error)) || 0 == host.rcv)
ret = FAIL;
zbx_free(host.addr);
break;
default:
break;
}
alarm(0);
}
free_result(&result);
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(ret));
return ret;
}
/******************************************************************************
* *
* 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_socket_t *sock, struct zbx_json_parse *jp)
{
const char *__function_name = "send_list_of_active_checks_json";
char host[HOST_HOST_LEN_MAX], 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;
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, sock->peer);
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(sock, 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, now;
zbx_config_t cfg;
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);
zbx_config_get(&cfg, ZBX_CONFIG_FLAGS_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 == cfg.refresh_unsupported)
continue;
if (dc_items[i].lastclock + cfg.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_LASTLOGSIZE, dc_items[i].lastlogsize);
zbx_json_adduint64(&json, ZBX_PROTO_TAG_MTIME, dc_items[i].mtime);
zbx_json_close(&json);
zbx_itemkey_extract_global_regexps(dc_items[i].key, &names);
zbx_free(dc_items[i].key);
}
zbx_config_clean(&cfg);
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);
zbx_alarm_on(CONFIG_TIMEOUT);
if (SUCCEED != zbx_tcp_send(sock, json.buffer))
strscpy(error, zbx_socket_strerror());
else
ret = SUCCEED;
zbx_alarm_off();
zbx_json_free(&json);
goto out;
error:
zabbix_log(LOG_LEVEL_WARNING, "cannot send list of active checks to \"%s\": %s", sock->peer, 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;
}
