Index: uspace/lib/c/include/ipc/packet.h
===================================================================
--- uspace/lib/c/include/ipc/packet.h	(revision 1b44433c8c154ddf7ece869c3e3be26dfc91e7ec)
+++ uspace/lib/c/include/ipc/packet.h	(revision 1b44433c8c154ddf7ece869c3e3be26dfc91e7ec)
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2009 Lukas Mejdrech
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libc
+ *  @{
+ */
+
+/** @file
+ *  Packet server module messages.
+ */
+
+#ifndef LIBC_PACKET_MESSAGES_
+#define LIBC_PACKET_MESSAGES_
+
+#include <ipc/ipc.h>
+#include <ipc/net.h>
+
+/** Packet server module messages. */
+typedef enum {
+	/** Create packet message with specified content length.
+	 * @see packet_get_1()
+	 */
+	NET_PACKET_CREATE_1 = NET_PACKET_FIRST,
+	
+	/**
+	 * Create packet message with specified address length, prefix, content
+	 * and suffix.
+	 * @see packet_get_4()
+	 */
+	NET_PACKET_CREATE_4,
+	
+	/** Get packet message.
+	 * @see packet_return() */
+	NET_PACKET_GET,
+	
+	/** Get packet size message.
+	 * @see packet_translate()
+	 */
+	NET_PACKET_GET_SIZE,
+	
+	/** Release packet message.
+	 * @see pq_release()
+	 */
+	NET_PACKET_RELEASE
+} packet_messages;
+
+/** Returns the protocol service message parameter. */
+#define ARP_GET_PROTO(call)	(services_t) IPC_GET_ARG2(*call)
+
+/** Returns the packet identifier message parameter. */
+#define IPC_GET_ID(call)	(packet_id_t) IPC_GET_ARG1(*call)
+
+/** Returns the maximal content length message parameter. */
+#define IPC_GET_CONTENT(call)	(size_t) IPC_GET_ARG1(*call)
+
+/** Returns the maximal address length message parameter. */
+#define IPC_GET_ADDR_LEN(call)	(size_t) IPC_GET_ARG2(*call)
+
+/** Returns the maximal prefix length message parameter. */
+#define IPC_GET_PREFIX(call)	(size_t) IPC_GET_ARG3(*call)
+
+/** Returns the maximal suffix length message parameter. */
+#define IPC_GET_SUFFIX(call)	(size_t) IPC_GET_ARG4(*call)
+
+#endif
+
+/** @}
+ */