Index: uspace/lib/c/generic/net/icmp_api.c
===================================================================
--- uspace/lib/c/generic/net/icmp_api.c	(revision c89eefb85a12baa5183e1689a9ed1c2b6ffb8f06)
+++ uspace/lib/c/generic/net/icmp_api.c	(revision c89eefb85a12baa5183e1689a9ed1c2b6ffb8f06)
@@ -0,0 +1,99 @@
+/*
+ * 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
+ * ICMP application interface implementation.
+ * @see icmp_api.h
+ */
+
+#include <net/icmp_api.h>
+#include <net/socket_codes.h>
+#include <net/inet.h>
+#include <net/modules.h>
+#include <net/ip_codes.h>
+
+#include <async.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <errno.h>
+
+#include <ipc/ipc.h>
+#include <ipc/services.h>
+#include <ipc/icmp.h>
+
+/** Requests an echo message.
+ *
+ * Sends a packet with specified parameters to the target host and waits for the
+ * reply upto the given timeout. Blocks the caller until the reply or the
+ * timeout occurs.
+ *
+ * @param[in] icmp_phone The ICMP module phone used for (semi)remote calls.
+ * @param[in] size	The message data length in bytes.
+ * @param[in] timeout	The timeout in milliseconds.
+ * @param[in] ttl	The time to live.
+ * @param[in] tos	The type of service.
+ * @param[in] dont_fragment The value indicating whether the datagram must not
+ *			be fragmented. Is used as a MTU discovery.
+ * @param[in] addr	The target host address.
+ * @param[in] addrlen	The torget host address length.
+ * @returns		ICMP_ECHO on success.
+ * @returns		ETIMEOUT if the reply has not arrived before the
+ *			timeout.
+ * @returns		ICMP type of the received error notification.
+ * @returns		EINVAL if the addrlen parameter is less or equal to
+ *			zero.
+ * @returns		ENOMEM if there is not enough memory left.
+ * @returns		EPARTY if there was an internal error.
+ */
+int
+icmp_echo_msg(int icmp_phone, size_t size, mseconds_t timeout, ip_ttl_t ttl,
+    ip_tos_t tos, int dont_fragment, const struct sockaddr *addr,
+    socklen_t addrlen)
+{
+	aid_t message_id;
+	ipcarg_t result;
+
+	if (addrlen <= 0)
+		return EINVAL;
+
+	message_id = async_send_5(icmp_phone, NET_ICMP_ECHO, size, timeout, ttl,
+	    tos, (ipcarg_t) dont_fragment, NULL);
+
+	// send the address
+	async_data_write_start(icmp_phone, addr, (size_t) addrlen);
+
+	async_wait_for(message_id, &result);
+	return (int) result;
+}
+
+/** @}
+ */
Index: uspace/lib/c/generic/net/icmp_common.c
===================================================================
--- uspace/lib/c/generic/net/icmp_common.c	(revision c89eefb85a12baa5183e1689a9ed1c2b6ffb8f06)
+++ uspace/lib/c/generic/net/icmp_common.c	(revision c89eefb85a12baa5183e1689a9ed1c2b6ffb8f06)
@@ -0,0 +1,67 @@
+/*
+ * 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
+ * ICMP common interface implementation.
+ * @see icmp_common.h
+ */
+
+#include <net/modules.h>
+#include <net/icmp_common.h>
+
+#include <ipc/services.h>
+#include <ipc/icmp.h>
+
+#include <sys/time.h>
+#include <async.h>
+
+/** Connects to the ICMP module.
+ *
+ * @param service	The ICMP module service. Ignored parameter.
+ * @param[in] timeout	The connection timeout in microseconds. No timeout if
+ *			set to zero.
+ * @returns		The ICMP module phone on success.
+ * @returns		ETIMEOUT if the connection timeouted.
+ */
+int icmp_connect_module(services_t service, suseconds_t timeout)
+{
+	int phone;
+
+	phone = connect_to_service_timeout(SERVICE_ICMP, timeout);
+	if (phone >= 0)
+		async_req_0_0(phone, NET_ICMP_INIT);
+
+	return phone;
+}
+
+/** @}
+ */