Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 128 insertions, 0 deletions

diff --git a/source3/include/messages.h b/source3/include/messages.h
new file mode 100644
index 0000000..23c90f7
--- /dev/null
+++ b/source3/include/messages.h
@@ -0,0 +1,128 @@
+/* 
+   Unix SMB/CIFS implementation.
+   messages.c header
+   Copyright (C) Andrew Tridgell 2000
+   Copyright (C) 2001, 2002 by Martin Pool
+
+   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/>.
+*/
+
+#ifndef _MESSAGES_H_
+#define _MESSAGES_H_
+
+#include "replace.h"
+#include <tevent.h>
+
+/* change the message version with any incompatible changes in the protocol */
+#define MESSAGE_VERSION 2
+
+/*
+ * Special flags passed to message_send. Allocated from the top, lets see when
+ * it collides with the message types in the lower 16 bits :-)
+ */
+
+/*
+ * Under high load, this message can be dropped. Use for notify-style
+ * messages that are not critical for correct operation.
+ */
+#define MSG_FLAG_LOWPRIORITY		0x80000000
+
+#include "librpc/gen_ndr/server_id.h"
+#include "lib/util/data_blob.h"
+#include "system/network.h"
+
+#define MSG_BROADCAST_PID_STR	"0:0"
+
+struct messaging_context;
+struct messaging_rec;
+
+struct messaging_context *messaging_init(TALLOC_CTX *mem_ctx, 
+					 struct tevent_context *ev);
+
+struct server_id messaging_server_id(const struct messaging_context *msg_ctx);
+struct tevent_context *messaging_tevent_context(
+	struct messaging_context *msg_ctx);
+struct server_id_db *messaging_names_db(struct messaging_context *msg_ctx);
+
+/*
+ * re-init after a fork
+ */
+NTSTATUS messaging_reinit(struct messaging_context *msg_ctx);
+
+NTSTATUS messaging_register(struct messaging_context *msg_ctx,
+			    void *private_data,
+			    uint32_t msg_type,
+			    void (*fn)(struct messaging_context *msg,
+				       void *private_data, 
+				       uint32_t msg_type, 
+				       struct server_id server_id,
+				       DATA_BLOB *data));
+void messaging_deregister(struct messaging_context *ctx, uint32_t msg_type,
+			  void *private_data);
+
+/**
+ * CAVEAT:
+ *
+ * While the messaging_send*() functions are synchronous by API,
+ * they trigger a tevent-based loop upon sending bigger messages.
+ *
+ * Hence callers should not use these in purely synchronous code,
+ * but run a tevent_loop instead.
+ */
+NTSTATUS messaging_send(struct messaging_context *msg_ctx,
+			struct server_id server, 
+			uint32_t msg_type, const DATA_BLOB *data);
+
+NTSTATUS messaging_send_buf(struct messaging_context *msg_ctx,
+			    struct server_id server, uint32_t msg_type,
+			    const uint8_t *buf, size_t len);
+int messaging_send_iov_from(struct messaging_context *msg_ctx,
+			    struct server_id src, struct server_id dst,
+			    uint32_t msg_type,
+			    const struct iovec *iov, int iovlen,
+			    const int *fds, size_t num_fds);
+NTSTATUS messaging_send_iov(struct messaging_context *msg_ctx,
+			    struct server_id server, uint32_t msg_type,
+			    const struct iovec *iov, int iovlen,
+			    const int *fds, size_t num_fds);
+void messaging_send_all(struct messaging_context *msg_ctx,
+			int msg_type, const void *buf, size_t len);
+
+struct tevent_req *messaging_filtered_read_send(
+	TALLOC_CTX *mem_ctx, struct tevent_context *ev,
+	struct messaging_context *msg_ctx,
+	bool (*filter)(struct messaging_rec *rec, void *private_data),
+	void *private_data);
+int messaging_filtered_read_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+				 struct messaging_rec **presult);
+
+struct tevent_req *messaging_read_send(TALLOC_CTX *mem_ctx,
+				       struct tevent_context *ev,
+				       struct messaging_context *msg,
+				       uint32_t msg_type);
+int messaging_read_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+			struct messaging_rec **presult);
+
+int messaging_cleanup(struct messaging_context *msg_ctx, pid_t pid);
+
+bool messaging_parent_dgm_cleanup_init(struct messaging_context *msg);
+
+struct messaging_rec *messaging_rec_create(
+	TALLOC_CTX *mem_ctx, struct server_id src, struct server_id dst,
+	uint32_t msg_type, const struct iovec *iov, int iovlen,
+	const int *fds, size_t num_fds);
+
+#include "librpc/gen_ndr/ndr_messaging.h"
+
+#endif