/******************************************************************************
* *
* 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 succesfully *
* FAIL - an error occured *
* *
* Author: Aleksander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int send_list_of_active_checks_json(zbx_sock_t *sock, struct zbx_json_parse *jp)
{
char host[HOST_HOST_LEN_MAX], *name_esc, params[MAX_STRING_LEN],
pattern[MAX_STRING_LEN], tmp[32];
DB_RESULT result;
DB_ROW row;
DB_ITEM item;
struct zbx_json json;
int res = FAIL;
zbx_uint64_t hostid;
char error[MAX_STRING_LEN];
char **regexp = NULL;
int regexp_alloc = 32;
int regexp_num = 0, n;
char *sql = NULL;
int sql_alloc = 2048;
int sql_offset;
zabbix_log(LOG_LEVEL_DEBUG, "In send_list_of_active_checks_json()");
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 out;
}
if (FAIL == get_hostid_by_host(host, &hostid, error))
goto out;
regexp = zbx_malloc(regexp, regexp_alloc);
sql = zbx_malloc(sql, sql_alloc);
name_esc = DBdyn_escape_string(host);
sql_offset = 0;
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 1024,
"select %s where i.hostid=h.hostid and h.status=%d and i.type=%d and h.hostid=" ZBX_FS_UI64
" and h.proxy_hostid=0",
ZBX_SQL_ITEM_SELECT,
HOST_STATUS_MONITORED,
ITEM_TYPE_ZABBIX_ACTIVE,
hostid);
if (0 != CONFIG_REFRESH_UNSUPPORTED)
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 256, " and (i.status=%d or (i.status=%d and i.nextcheck<=%d))",
ITEM_STATUS_ACTIVE, ITEM_STATUS_NOTSUPPORTED, time(NULL));
else
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 256, " and i.status=%d",
ITEM_STATUS_ACTIVE);
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)))
{
DBget_item_from_db(&item, row);
zbx_json_addobject(&json, NULL);
zbx_json_addstring(&json, ZBX_PROTO_TAG_KEY, item.key, ZBX_JSON_TYPE_STRING);
if (0 != strcmp(item.key, item.key_orig))
zbx_json_addstring(&json, ZBX_PROTO_TAG_KEY_ORIG, item.key_orig, ZBX_JSON_TYPE_STRING);
zbx_snprintf(tmp, sizeof(tmp), "%d", item.delay);
zbx_json_addstring(&json, ZBX_PROTO_TAG_DELAY, tmp, ZBX_JSON_TYPE_STRING);
zbx_snprintf(tmp, sizeof(tmp), "%d", item.lastlogsize);
zbx_json_addstring(&json, ZBX_PROTO_TAG_LOGLASTSIZE, tmp, ZBX_JSON_TYPE_STRING);
zbx_json_close(&json);
/* Special processing for log[] and eventlog[] items */
do { /* simple try realization */
if (0 != strncmp(item.key, "log[", 4) && 0 != strncmp(item.key, "eventlog[", 9))
break;
if (2 != parse_command(item.key, NULL, 0, params, MAX_STRING_LEN))
break;;
if (0 != get_param(params, 2, pattern, sizeof(pattern)))
break;
if (*pattern != '@')
break;
for (n = 0; n < regexp_num; n++)
if (0 == strcmp(regexp[n], pattern + 1))
break;
if (n != regexp_num)
break;
if (regexp_num == regexp_alloc)
{
regexp_alloc += 32;
regexp = zbx_realloc(regexp, regexp_alloc);
}
regexp[regexp_num++] = strdup(pattern + 1);
} while (0); /* simple try realization */
}
zbx_json_close(&json);
DBfree_result(result);
if (0 != regexp_num)
{
zbx_json_addarray(&json, ZBX_PROTO_TAG_REGEXP);
sql_offset = 0;
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 512,
"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, 512, "%s'%s'",
n == 0 ? "" : ",",
name_esc);
zbx_free(name_esc);
zbx_free(regexp[n]);
}
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 8, ")");
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, "Sending [%s]",
json.buffer);
if (SUCCEED != zbx_tcp_send_raw(sock, json.buffer))
zbx_snprintf(error, MAX_STRING_LEN, "%s", zbx_tcp_strerror());
else
res = SUCCEED;
zbx_json_free(&json);
zbx_free(sql);
out:
if (FAIL == res)
zabbix_log(LOG_LEVEL_WARNING, "Send list of active checks to [%s] failed: %s",
get_ip_by_socket(sock), error);
return res;
}
/******************************************************************************
* *
* Function: send_list_of_active_checks *
* *
* Purpose: send list of active checks to the host *
* *
* Parameters: sock - open socket of server-agent connection *
* request - request buffer *
* *
* Return value: SUCCEED - list of active checks sent succesfully *
* FAIL - an error occured *
* *
* Author: Alexei Vladishev *
* *
* Comments: format of the request: ZBX_GET_ACTIVE_CHECKS\n<host name>\n *
* format of the list: key:delay:last_log_size *
* *
******************************************************************************/
int send_list_of_active_checks(zbx_sock_t *sock, char *request)
{
char *host = NULL, *p;
DB_RESULT result;
DB_ROW row;
char *buffer = NULL;
int buffer_alloc = 2048;
int buffer_offset = 0;
int res = FAIL;
zbx_uint64_t hostid;
char error[MAX_STRING_LEN];
zabbix_log(LOG_LEVEL_DEBUG, "In send_list_of_active_checks()");
if (NULL != (host = strchr(request, '\n')))
{
host++;
if (NULL != (p = strchr(host, '\n')))
*p = '\0';
}
else
{
zbx_snprintf(error, MAX_STRING_LEN, "host is null");
goto out;
}
if (FAIL == get_hostid_by_host(host, &hostid, error))
goto out;
buffer = zbx_malloc(buffer, buffer_alloc);
buffer_offset = 0;
zbx_snprintf_alloc(&buffer, &buffer_alloc, &buffer_offset, 1024,
"select i.key_,i.delay,i.lastlogsize from items i,hosts h"
" where i.hostid=h.hostid and h.status=%d and i.type=%d and h.hostid=" ZBX_FS_UI64
" and h.proxy_hostid=0",
HOST_STATUS_MONITORED,
ITEM_TYPE_ZABBIX_ACTIVE,
hostid);
if (0 != CONFIG_REFRESH_UNSUPPORTED) {
zbx_snprintf_alloc(&buffer, &buffer_alloc, &buffer_offset, 256,
" and (i.status=%d or (i.status=%d and i.nextcheck<=%d))",
ITEM_STATUS_ACTIVE, ITEM_STATUS_NOTSUPPORTED, time(NULL));
} else {
zbx_snprintf_alloc(&buffer, &buffer_alloc, &buffer_offset, 256,
" and i.status=%d",
ITEM_STATUS_ACTIVE);
}
result = DBselect("%s", buffer);
buffer_offset = 0;
while (NULL != (row = DBfetch(result)))
{
zbx_snprintf_alloc(&buffer, &buffer_alloc, &buffer_offset, 512, "%s:%s:%s\n",
row[0],
row[1],
row[2]);
}
DBfree_result(result);
zbx_snprintf_alloc(&buffer, &buffer_alloc, &buffer_offset, 512, "ZBX_EOF\n");
zabbix_log(LOG_LEVEL_DEBUG, "Sending [%s]",
buffer);
if (SUCCEED != zbx_tcp_send_raw(sock, buffer))
zbx_snprintf(error, MAX_STRING_LEN, "%s", zbx_tcp_strerror());
else
res = SUCCEED;
zbx_free(buffer);
out:
if (FAIL == res)
zabbix_log(LOG_LEVEL_WARNING, "Send list of active checks to [%s] failed: %s",
get_ip_by_socket(sock), error);
return res;
}
/******************************************************************************
* *
* 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: send_list_of_active_checks *
* *
* Purpose: send list of active checks to the host *
* *
* Parameters: sock - open socket of server-agent connection *
* request - request buffer *
* *
* Return value: SUCCEED - list of active checks sent successfully *
* FAIL - an error occurred *
* *
* Author: Alexei Vladishev *
* *
* Comments: format of the request: ZBX_GET_ACTIVE_CHECKS\n<host name>\n *
* format of the list: key:delay:last_log_size *
* *
******************************************************************************/
int send_list_of_active_checks(zbx_sock_t *sock, char *request)
{
const char *__function_name = "send_list_of_active_checks";
char *host = NULL, *p;
DB_RESULT result;
DB_ROW row;
char *buffer = NULL;
size_t buffer_alloc = 2 * ZBX_KIBIBYTE, buffer_offset = 0;
int res = FAIL, refresh_unsupported, now;
zbx_uint64_t hostid;
char error[MAX_STRING_LEN], ip[INTERFACE_IP_LEN_MAX];
DC_ITEM dc_item;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
if (NULL != (host = strchr(request, '\n')))
{
host++;
if (NULL != (p = strchr(host, '\n')))
*p = '\0';
}
else
{
zbx_snprintf(error, sizeof(error), "host is null");
goto out;
}
strscpy(ip, get_ip_by_socket(sock));
if (FAIL == get_hostid_by_host(host, ip, ZBX_DEFAULT_AGENT_PORT, &hostid, error))
goto out;
DCconfig_get_config_data(&refresh_unsupported, CONFIG_REFRESH_UNSUPPORTED);
now = time(NULL);
buffer = zbx_malloc(buffer, buffer_alloc);
buffer_offset = 0;
zbx_snprintf_alloc(&buffer, &buffer_alloc, &buffer_offset,
"select i.key_,i.delay,i.lastlogsize"
" 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);
result = DBselect("%s", buffer);
buffer_offset = 0;
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;
}
}
DCconfig_clean_items(&dc_item, NULL, 1);
zabbix_log(LOG_LEVEL_DEBUG, "%s() Item '%s' was successfully found in the server cache. Sending.",
__function_name, row[0]);
zbx_snprintf_alloc(&buffer, &buffer_alloc, &buffer_offset, "%s:%s:%s\n",
row[0], /* item key */
row[1], /* item delay */
row[2]); /* item lastlogsize */
}
DBfree_result(result);
zbx_strcpy_alloc(&buffer, &buffer_alloc, &buffer_offset, "ZBX_EOF\n");
zabbix_log(LOG_LEVEL_DEBUG, "%s() sending [%s]", __function_name, buffer);
alarm(CONFIG_TIMEOUT);
if (SUCCEED != zbx_tcp_send_raw(sock, buffer))
zbx_snprintf(error, MAX_STRING_LEN, "%s", zbx_tcp_strerror());
else
res = SUCCEED;
alarm(0);
zbx_free(buffer);
out:
if (FAIL == res)
zabbix_log(LOG_LEVEL_WARNING, "cannot send list of active checks to [%s]: %s", get_ip_by_socket(sock),
error);
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(res));
return res;
}
/******************************************************************************
* *
* 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;
}
/******************************************************************************
* *
* Function: send_list_of_active_checks *
* *
* Purpose: send list of active checks to the host (older version agent) *
* *
* Parameters: sock - open socket of server-agent connection *
* request - request buffer *
* *
* Return value: SUCCEED - list of active checks sent successfully *
* FAIL - an error occurred *
* *
* Comments: format of the request: ZBX_GET_ACTIVE_CHECKS\n<host name>\n *
* format of the list: key:delay:last_log_size *
* *
******************************************************************************/
int send_list_of_active_checks(zbx_socket_t *sock, char *request)
{
const char *__function_name = "send_list_of_active_checks";
char *host = NULL, *p, *buffer = NULL, error[MAX_STRING_LEN];
size_t buffer_alloc = 8 * ZBX_KIBIBYTE, buffer_offset = 0;
int ret = FAIL, i;
zbx_uint64_t hostid;
zbx_vector_uint64_t itemids;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
if (NULL != (host = strchr(request, '\n')))
{
host++;
if (NULL != (p = strchr(host, '\n')))
*p = '\0';
}
else
{
zbx_snprintf(error, sizeof(error), "host is null");
goto out;
}
/* no host metadata in older versions of agent */
if (FAIL == get_hostid_by_host(sock, host, sock->peer, ZBX_DEFAULT_AGENT_PORT, "", &hostid, error))
goto out;
zbx_vector_uint64_create(&itemids);
get_list_of_active_checks(hostid, &itemids);
buffer = zbx_malloc(buffer, buffer_alloc);
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;
}
zbx_snprintf_alloc(&buffer, &buffer_alloc, &buffer_offset, "%s:%d:" ZBX_FS_UI64 "\n",
dc_items[i].key_orig, dc_items[i].delay, dc_items[i].lastlogsize);
}
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_strcpy_alloc(&buffer, &buffer_alloc, &buffer_offset, "ZBX_EOF\n");
zabbix_log(LOG_LEVEL_DEBUG, "%s() sending [%s]", __function_name, buffer);
zbx_alarm_on(CONFIG_TIMEOUT);
if (SUCCEED != zbx_tcp_send_raw(sock, buffer))
zbx_strlcpy(error, zbx_socket_strerror(), MAX_STRING_LEN);
else
ret = SUCCEED;
zbx_alarm_off();
zbx_free(buffer);
out:
if (FAIL == ret)
zabbix_log(LOG_LEVEL_WARNING, "cannot send list of active checks to \"%s\": %s", sock->peer, error);
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_sock_t *sock, struct zbx_json_parse *jp)
{
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];
DB_RESULT result;
DB_ROW row;
DB_ITEM item;
struct zbx_json json;
int res = FAIL;
zbx_uint64_t hostid;
char error[MAX_STRING_LEN];
DC_ITEM dc_item;
char **regexp = NULL;
int regexp_alloc = 0;
int regexp_num = 0, n;
char *sql = NULL;
int sql_alloc = 2048;
int sql_offset;
zabbix_log(LOG_LEVEL_DEBUG, "In send_list_of_active_checks_json()");
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 == get_hostid_by_host(host, &hostid, error))
goto error;
sql = zbx_malloc(sql, sql_alloc);
name_esc = DBdyn_escape_string(host);
sql_offset = 0;
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 1024,
"select %s where i.hostid=h.hostid and h.status=%d and i.type=%d and h.hostid=" ZBX_FS_UI64
" and h.proxy_hostid=0",
ZBX_SQL_ITEM_SELECT,
HOST_STATUS_MONITORED,
ITEM_TYPE_ZABBIX_ACTIVE,
hostid);
if (0 != CONFIG_REFRESH_UNSUPPORTED)
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 256, " and (i.status=%d or (i.status=%d and i.lastclock+%d<=%d))",
ITEM_STATUS_ACTIVE, ITEM_STATUS_NOTSUPPORTED,
CONFIG_REFRESH_UNSUPPORTED, time(NULL));
else
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 256, " and i.status=%d",
ITEM_STATUS_ACTIVE);
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[1]))
{
zabbix_log(LOG_LEVEL_DEBUG, "Item '%s' was not found in the server cache. Not sending now.", row[1]);
continue;
}
zabbix_log(LOG_LEVEL_DEBUG, "Item '%s' was successfully found in the server cache. Sending.", row[1]);
DBget_item_from_db(&item, row);
zbx_json_addobject(&json, NULL);
zbx_json_addstring(&json, ZBX_PROTO_TAG_KEY, item.key, ZBX_JSON_TYPE_STRING);
if (0 != strcmp(item.key, item.key_orig))
zbx_json_addstring(&json, ZBX_PROTO_TAG_KEY_ORIG, item.key_orig, ZBX_JSON_TYPE_STRING);
zbx_snprintf(tmp, sizeof(tmp), "%d", item.delay);
zbx_json_addstring(&json, ZBX_PROTO_TAG_DELAY, tmp, ZBX_JSON_TYPE_STRING);
/* The agent expects ALWAYS to have lastlogsize and mtime tags. Removing those would cause older agents to fail. */
zbx_snprintf(tmp, sizeof(tmp), "%d", item.lastlogsize);
zbx_json_addstring(&json, ZBX_PROTO_TAG_LOGLASTSIZE, tmp, ZBX_JSON_TYPE_STRING);
zbx_snprintf(tmp, sizeof(tmp), "%d", item.mtime);
zbx_json_addstring(&json, ZBX_PROTO_TAG_MTIME, tmp, ZBX_JSON_TYPE_STRING);
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(item.key, "log[", 4) && 0 != strncmp(item.key, "logrt[", 6))
break;
if (2 != parse_command(item.key, NULL, 0, params, MAX_STRING_LEN))
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(item.key, "eventlog[", 9))
break;
if (2 != parse_command(item.key, NULL, 0, params, MAX_STRING_LEN))
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_json_close(&json);
DBfree_result(result);
if (0 != regexp_num)
{
zbx_json_addarray(&json, ZBX_PROTO_TAG_REGEXP);
sql_offset = 0;
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 512,
"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, 512, "%s'%s'",
n == 0 ? "" : ",",
name_esc);
zbx_free(name_esc);
zbx_free(regexp[n]);
}
zbx_snprintf_alloc(&sql, &sql_alloc, &sql_offset, 8, ")");
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, "Sending [%s]",
json.buffer);
alarm(CONFIG_TIMEOUT);
if (SUCCEED != zbx_tcp_send(sock, json.buffer))
zbx_snprintf(error, MAX_STRING_LEN, "%s", zbx_tcp_strerror());
else
res = SUCCEED;
alarm(0);
zbx_json_free(&json);
zbx_free(sql);
return res;
error:
//zabbix_log(LOG_LEVEL_WARNING, "Sending list of active checks to [%s] failed: %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, "Sending [%s]",
json.buffer);
res = zbx_tcp_send(sock, json.buffer);
zbx_json_free(&json);
return res;
}