A new RPC pipe! The \pipe\echo named pipe is for testing large RPC

requests and responses and is only compiled in when --enable-developer
is passed to configure.  It includes server and client side code for
generating and responding to functions on this pipe.  The functions are:

 - AddOne: add one to the uint32 argument and return ig
 - EchoData: echo back a variable sized char array to the caller
 - SourceData: request a variable sized char array
 - SinkData: send a variable sized char array and throw it away

There's a win32 implementation of the client and server in the
junkcode CVS repository in the rpcecho-win32 subdirectory.

source/rpc_parse/parse_echo.c

@@ -0,0 +1,166 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *
+ *  RPC Pipe client / server routines
+ *
+ *  Copyright (C) Tim Potter 2003
+ *  
+ *  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 2 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, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+#include "nterr.h"
+#include "rpc_parse.h"   
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_RPC_PARSE
+
+void init_echo_q_add_one(ECHO_Q_ADD_ONE *q_d, uint32 request)
+{
+	q_d->request = request;
+}
+
+BOOL echo_io_q_add_one(const char *desc, ECHO_Q_ADD_ONE *q_d,
+		       prs_struct *ps, int depth)
+{
+	if (!prs_uint32("request", ps, 0, &q_d->request))
+		return False;
+
+	return True;
+}
+
+BOOL echo_io_r_add_one(const char *desc, ECHO_R_ADD_ONE *q_d,
+		       prs_struct *ps, int depth)
+{
+	if (!prs_uint32("response", ps, 0, &q_d->response))
+		return False;
+
+	return True;
+}
+
+
+void init_echo_q_echo_data(ECHO_Q_ECHO_DATA *q_d, uint32 size, char *data)
+{
+	q_d->size = size;
+	q_d->data = data;
+}
+
+BOOL echo_io_q_echo_data(const char *desc, ECHO_Q_ECHO_DATA *q_d,
+			  prs_struct *ps, int depth)
+{
+	if (!prs_uint32("size", ps, depth, &q_d->size))
+		return False;
+
+	if (!prs_uint32("size", ps, depth, &q_d->size))
+		return False;
+
+	if (UNMARSHALLING(ps)) {
+		q_d->data = prs_alloc_mem(ps, q_d->size);
+
+		if (!q_d->data)
+			return False;
+	}
+
+	if (!prs_uint8s(False, "data", ps, depth, q_d->data, q_d->size))
+		return False;
+
+	return True;
+}
+
+BOOL echo_io_r_echo_data(const char *desc, ECHO_R_ECHO_DATA *q_d,
+			  prs_struct *ps, int depth)
+{
+	if (!prs_uint32("size", ps, 0, &q_d->size))
+		return False;
+
+	if (UNMARSHALLING(ps)) {
+		q_d->data = prs_alloc_mem(ps, q_d->size);
+
+		if (!q_d->data)
+			return False;
+	}
+
+	if (!prs_uint8s(False, "data", ps, depth, q_d->data, q_d->size))
+		return False;
+
+	return True;
+}
+
+void init_echo_q_sink_data(ECHO_Q_SINK_DATA *q_d, uint32 size, char *data)
+{
+	q_d->size = size;
+	q_d->data = data;
+}
+
+BOOL echo_io_q_sink_data(const char *desc, ECHO_Q_SINK_DATA *q_d,
+			 prs_struct *ps, int depth)
+{
+	if (!prs_uint32("size", ps, depth, &q_d->size))
+		return False;
+
+	if (!prs_uint32("size", ps, depth, &q_d->size))
+		return False;
+
+	if (UNMARSHALLING(ps)) {
+		q_d->data = prs_alloc_mem(ps, q_d->size);
+
+		if (!q_d->data)
+			return False;
+	}
+
+	if (!prs_uint8s(False, "data", ps, depth, q_d->data, q_d->size))
+		return False;
+
+	return True;
+}
+
+BOOL echo_io_r_sink_data(const char *desc, ECHO_R_SINK_DATA *q_d,
+			 prs_struct *ps, int depth)
+{
+	return True;
+}
+
+void init_echo_q_source_data(ECHO_Q_SOURCE_DATA *q_d, uint32 size)
+{
+	q_d->size = size;
+}
+
+BOOL echo_io_q_source_data(const char *desc, ECHO_Q_SOURCE_DATA *q_d,
+			 prs_struct *ps, int depth)
+{
+	if (!prs_uint32("size", ps, depth, &q_d->size))
+		return False;
+
+	return True;
+}
+
+BOOL echo_io_r_source_data(const char *desc, ECHO_R_SOURCE_DATA *q_d,
+			   prs_struct *ps, int depth)
+{
+	if (!prs_uint32("size", ps, 0, &q_d->size))
+		return False;
+
+	if (UNMARSHALLING(ps)) {
+		q_d->data = prs_alloc_mem(ps, q_d->size);
+
+		if (!q_d->data)
+			return False;
+	}
+
+	if (!prs_uint8s(False, "data", ps, depth, q_d->data, q_d->size))
+		return False;
+
+	return True;
+}