/******************************************************************************
* *
* Function: DMget_config_data *
* *
* Purpose: get configuration changes to required node *
* *
* Parameters: *
* *
* Return value: SUCCESS - processed successfully *
* FAIL - an error occurred *
* *
* Author: Alexander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
char *DMget_config_data(int nodeid, unsigned char dest_nodetype)
{
const char *__function_name = "DMget_config_data";
char *ptbls = NULL; /* list of processed tables */
size_t ptbls_alloc = ZBX_KIBIBYTE, ptbls_offset = 0;
char *data = NULL;
size_t data_alloc = ZBX_KIBIBYTE, data_offset = 0;
int t;
zabbix_log(LOG_LEVEL_DEBUG, "In %s() node:%d dest_nodetype:%s", __function_name,
nodeid, zbx_nodetype_string(dest_nodetype));
ptbls = zbx_malloc(ptbls, ptbls_alloc);
data = zbx_malloc(data, data_alloc);
*ptbls = '\0';
zbx_snprintf_alloc(&data, &data_alloc, &data_offset, "Data%c%d%c%d",
ZBX_DM_DELIMITER, CONFIG_NODEID, ZBX_DM_DELIMITER, nodeid);
for (t = 0; NULL != tables[t].table; t++)
{
if (0 == (tables[t].flags & ZBX_SYNC))
continue;
DMget_table_data(nodeid, dest_nodetype, &tables[t], &data, &data_alloc, &data_offset,
&ptbls, &ptbls_alloc, &ptbls_offset);
}
zbx_free(ptbls);
zabbix_log(LOG_LEVEL_DEBUG, "End of %s()", __function_name);
return data;
}
/******************************************************************************
* *
* Function: node_sync *
* *
* Purpose: process configuration changes received from a node *
* *
* Parameters: *
* *
* Return value: SUCCEED - processed successfully *
* FAIL - an error occurred *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int node_sync(char *data, int *sender_nodeid, int *nodeid)
{
const char *r;
char *lf;
int datalen, res = SUCCEED;
unsigned char sender_nodetype;
datalen = strlen(data);
zabbix_log(LOG_LEVEL_DEBUG, "In node_sync() len:%d", datalen);
tmp = zbx_malloc(tmp, tmp_alloc);
if (NULL != (lf = strchr(data, '\n')))
*lf = '\0';
r = data;
zbx_get_next_field(&r, &tmp, &tmp_alloc, ZBX_DM_DELIMITER); /* Data */
zbx_get_next_field(&r, &tmp, &tmp_alloc, ZBX_DM_DELIMITER);
*sender_nodeid = atoi(tmp);
sender_nodetype = (*sender_nodeid == CONFIG_MASTER_NODEID) ? ZBX_NODE_MASTER : ZBX_NODE_SLAVE;
zbx_get_next_field(&r, &tmp, &tmp_alloc, ZBX_DM_DELIMITER);
*nodeid = atoi(tmp);
if (0 != *sender_nodeid && 0 != *nodeid)
{
if (CONFIG_MASTER_NODEID != *sender_nodeid && FAIL == is_direct_slave_node(*sender_nodeid))
{
zabbix_log(LOG_LEVEL_ERR, "NODE %d: Received configuration changes from unknown node %d",
CONFIG_NODEID, *sender_nodeid);
res = FAIL;
goto quit;
}
if (CONFIG_MASTER_NODEID != *sender_nodeid && CONFIG_NODEID == *nodeid)
{
zabbix_log(LOG_LEVEL_ERR, "NODE %d: Received configuration changes for this node from a non-master node %d",
CONFIG_NODEID, *sender_nodeid);
res = FAIL;
goto quit;
}
if (CONFIG_NODEID != *nodeid && FAIL == is_slave_node(CONFIG_NODEID, *nodeid))
{
zabbix_log(LOG_LEVEL_ERR, "NODE %d: Received configuration changes for unknown node %d",
CONFIG_NODEID, *nodeid);
res = FAIL;
goto quit;
}
zabbix_log(LOG_LEVEL_WARNING, "NODE %d: Received configuration changes from %s node %d for node %d datalen %d",
CONFIG_NODEID, zbx_nodetype_string(sender_nodetype), *sender_nodeid, *nodeid, datalen);
DBexecute("delete from node_cksum where nodeid=%d and cksumtype=%d",
*nodeid,
NODE_CKSUM_TYPE_NEW);
if (lf != NULL)
{
*lf++ = '\n';
data = lf;
buf = zbx_malloc(buf, buf_alloc);
process_updated_records(*nodeid, data);
process_deleted_records(*nodeid, data);
process_checksum(*nodeid, data, sender_nodetype);
zbx_free(buf);
}
}
quit:
zbx_free(tmp);
return res;
}
