Unix SMB/CIFS implementation.
Samba internal messaging functions
Copyright (C) 2007 by Volker Lendecke
-
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "messages.h"
+#include "util_tdb.h"
+#include "lib/iov_buf.h"
+
+/*
+ * It is not possible to include ctdb.h and tdb_compat.h (included via
+ * some other include above) without warnings. This fixes those
+ * warnings.
+ */
-#ifdef CLUSTER_SUPPORT
+#ifdef typesafe_cb
+#undef typesafe_cb
+#endif
+
+#ifdef typesafe_cb_preargs
+#undef typesafe_cb_preargs
+#endif
+
+#ifdef typesafe_cb_postargs
+#undef typesafe_cb_postargs
+#endif
-#include "librpc/gen_ndr/messaging.h"
#include "ctdb.h"
#include "ctdb_private.h"
#include "ctdbd_conn.h"
* This is a Samba3 hack/optimization. Routines like process_exists need to
* talk to ctdbd, and they don't get handed a messaging context.
*/
-struct ctdbd_connection *global_ctdbd_connection;
+static struct ctdbd_connection *global_ctdbd_connection;
+static int global_ctdb_connection_pid;
struct ctdbd_connection *messaging_ctdbd_connection(void)
{
+ if (!lp_clustering()) {
+ return NULL;
+ }
+
+ if (global_ctdb_connection_pid == 0 &&
+ global_ctdbd_connection == NULL) {
+ struct tevent_context *ev;
+ struct messaging_context *msg;
+
+ ev = samba_tevent_context_init(NULL);
+ if (!ev) {
+ DEBUG(0,("samba_tevent_context_init failed\n"));
+ }
+
+ msg = messaging_init(NULL, ev);
+ if (!msg) {
+ DEBUG(0,("messaging_init failed\n"));
+ return NULL;
+ }
+ }
+
+ if (global_ctdb_connection_pid != getpid()) {
+ DEBUG(0,("messaging_ctdbd_connection():"
+ "valid for pid[%jd] but it's [%jd]\n",
+ (intmax_t)global_ctdb_connection_pid,
+ (intmax_t)getpid()));
+ smb_panic("messaging_ctdbd_connection() invalid process\n");
+ }
+
return global_ctdbd_connection;
}
-static NTSTATUS messaging_ctdb_send(struct messaging_context *msg_ctx,
- struct server_id pid, int msg_type,
- const DATA_BLOB *data,
- struct messaging_backend *backend)
+static int messaging_ctdb_send(struct server_id src,
+ struct server_id pid, int msg_type,
+ const struct iovec *iov, int iovlen,
+ const int *fds, size_t num_fds,
+ struct messaging_backend *backend)
{
struct messaging_ctdbd_context *ctx = talloc_get_type_abort(
backend->private_data, struct messaging_ctdbd_context);
-
struct messaging_rec msg;
+ uint8_t *buf;
+ ssize_t buflen;
+ NTSTATUS status;
- msg.msg_version = MESSAGE_VERSION;
- msg.msg_type = msg_type;
- msg.dest = pid;
- msg.src = procid_self();
- msg.buf = *data;
+ if (num_fds > 0) {
+ return ENOSYS;
+ }
+
+ buflen = iov_buflen(iov, iovlen);
+ if (buflen == -1) {
+ return EMSGSIZE;
+ }
+
+ buf = talloc_array(talloc_tos(), uint8_t, buflen);
+ if (buflen == NULL) {
+ return ENOMEM;
+ }
+ iov_buf(iov, iovlen, buf, buflen);
- return ctdbd_messaging_send(ctx->conn, pid.vnn, pid.pid, &msg);
+ msg = (struct messaging_rec) {
+ .msg_version = MESSAGE_VERSION,
+ .msg_type = msg_type,
+ .dest = pid,
+ .src = src,
+ .buf = data_blob_const(buf, talloc_get_size(buf)),
+ };
+
+ status = ctdbd_messaging_send(ctx->conn, pid.vnn, pid.pid, &msg);
+
+ TALLOC_FREE(buf);
+
+ if (NT_STATUS_IS_OK(status)) {
+ return 0;
+ }
+ return map_errno_from_nt_status(status);
}
static int messaging_ctdbd_destructor(struct messaging_ctdbd_context *ctx)
/*
* The global connection just went away
*/
+ global_ctdb_connection_pid = 0;
global_ctdbd_connection = NULL;
return 0;
}
struct messaging_ctdbd_context *ctx;
NTSTATUS status;
- if (!(result = TALLOC_P(mem_ctx, struct messaging_backend))) {
+ if (!(result = talloc(mem_ctx, struct messaging_backend))) {
DEBUG(0, ("talloc failed\n"));
return NT_STATUS_NO_MEMORY;
}
- if (!(ctx = TALLOC_P(result, struct messaging_ctdbd_context))) {
+ if (!(ctx = talloc(result, struct messaging_ctdbd_context))) {
DEBUG(0, ("talloc failed\n"));
TALLOC_FREE(result);
return NT_STATUS_NO_MEMORY;
return status;
}
+ global_ctdb_connection_pid = getpid();
global_ctdbd_connection = ctx->conn;
talloc_set_destructor(ctx, messaging_ctdbd_destructor);
*presult = result;
return NT_STATUS_OK;
}
-
-#else
-
-NTSTATUS messaging_ctdbd_init(struct messaging_context *msg_ctx,
- TALLOC_CTX *mem_ctx,
- struct messaging_backend **presult)
-{
- return NT_STATUS_NOT_IMPLEMENTED;
-}
-
-#endif
git.samba.org / obnox / samba / samba-obnox.git / blobdiff