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s3: Do not connect to ctdb if it is blocked for some reason

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This commit is contained in:
Volker Lendecke 2009-11-16 12:03:24 +01:00
parent 27056d37e0
commit 18e3b223c7
1 changed files with 58 additions and 0 deletions
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58
source3/lib/ctdbd_conn.c
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@ -105,6 +105,59 @@ static NTSTATUS get_cluster_vnn(struct ctdbd_connection *conn, uint32 *vnn)
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;;
}
uint32 ctdbd_vnn(const struct ctdbd_connection *conn)
{
return conn->our_vnn;
@ -460,6 +513,11 @@ static NTSTATUS ctdbd_init_connection(TALLOC_CTX *mem_ctx,
goto fail;
}
if (!ctdbd_working(conn, conn->our_vnn)) {
DEBUG(2, ("Node is not working, can not connect\n"));
goto fail;
}
generate_random_buffer((unsigned char *)&conn->rand_srvid,
sizeof(conn->rand_srvid));