static bool ctdb_req_complete(const uint8_t *buf, size_t available,
size_t *length,
void *private_data)
{
uint32 msglen;
if (available < sizeof(msglen)) {
return False;
}
msglen = *((uint32 *)buf);
DEBUG(10, ("msglen = %d\n", msglen));
if (msglen < sizeof(struct ctdb_req_header)) {
DEBUG(0, ("Got invalid msglen: %d, expected at least %d for "
"the req_header\n", (int)msglen,
(int)sizeof(struct ctdb_req_header)));
cluster_fatal("ctdbd protocol error\n");
}
if (available < msglen) {
return false;
}
*length = msglen;
return true;
}
static bool ctdb_req_complete(const struct data_blob *data,
size_t *length,
void *private_data)
{
uint32 msglen;
if (data->length < sizeof(msglen)) {
return False;
}
msglen = *((uint32 *)data->data);
DEBUG(10, ("msglen = %d\n", msglen));
if (msglen < sizeof(struct ctdb_req_header)) {
DEBUG(0, ("Got invalid msglen: %d, expected at least %d for "
"the req_header\n", (int)msglen,
(int)sizeof(struct ctdb_req_header)));
cluster_fatal("ctdbd protocol error\n");
}
if (data->length >= msglen) {
*length = msglen;
return True;
}
return False;
}
/*
* get our vnn from the cluster
*/
static NTSTATUS get_cluster_vnn(struct ctdbd_connection *conn, uint32 *vnn)
{
int32_t cstatus=-1;
NTSTATUS status;
status = ctdbd_control(conn,
CTDB_CURRENT_NODE, CTDB_CONTROL_GET_PNN, 0, 0,
tdb_null, NULL, NULL, &cstatus);
if (!NT_STATUS_IS_OK(status)) {
cluster_fatal("ctdbd_control failed\n");
}
*vnn = (uint32_t)cstatus;
return status;
}
/*
* Are we active (i.e. not banned or stopped?)
*/
static bool ctdbd_working(struct ctdbd_connection *conn, uint32_t vnn)
{
int32_t cstatus=-1;
NTSTATUS status;
TDB_DATA outdata;
struct ctdb_node_map *m;
uint32_t failure_flags;
bool ret = false;
int i;
status = ctdbd_control(conn, CTDB_CURRENT_NODE,
CTDB_CONTROL_GET_NODEMAP, 0, 0,
tdb_null, talloc_tos(), &outdata, &cstatus);
if (!NT_STATUS_IS_OK(status)) {
cluster_fatal("ctdbd_control failed\n");
}
if ((cstatus != 0) || (outdata.dptr == NULL)) {
DEBUG(2, ("Received invalid ctdb data\n"));
return false;
}
m = (struct ctdb_node_map *)outdata.dptr;
for (i=0; i<m->num; i++) {
if (vnn == m->nodes[i].pnn) {
break;
}
}
if (i == m->num) {
DEBUG(2, ("Did not find ourselves (node %d) in nodemap\n",
(int)vnn));
goto fail;
}
failure_flags = NODE_FLAGS_BANNED | NODE_FLAGS_DISCONNECTED
| NODE_FLAGS_PERMANENTLY_DISABLED | NODE_FLAGS_STOPPED;
if ((m->nodes[i].flags & failure_flags) != 0) {
DEBUG(2, ("Node has status %x, not active\n",
(int)m->nodes[i].flags));
goto fail;
}
ret = true;
fail:
TALLOC_FREE(outdata.dptr);
return ret;
}