[cmdline] Add "ping" command

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/config/config.c

@@ -272,6 +272,9 @@ REQUIRE_OBJECT ( param_cmd );
 #ifdef NEIGHBOUR_CMD
 REQUIRE_OBJECT ( neighbour_cmd );
 #endif
+#ifdef PING_CMD
+REQUIRE_OBJECT ( ping_cmd );
+#endif
 
 /*
  * Drag in miscellaneous objects

src/config/general.h

@@ -133,6 +133,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 //#define PCI_CMD		/* PCI commands */
 //#define PARAM_CMD		/* Form parameter commands */
 //#define NEIGHBOUR_CMD		/* Neighbour management commands */
+//#define PING_CMD		/* Ping command */
 
 /*
  * ROM-specific options

src/hci/commands/ping_cmd.c

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2013 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <getopt.h>
+#include <ipxe/command.h>
+#include <ipxe/parseopt.h>
+#include <usr/pingmgmt.h>
+
+/** @file
+ *
+ * Ping command
+ *
+ */
+
+/** Default payload length */
+#define PING_DEFAULT_SIZE 64
+
+/** Default timeout */
+#define PING_DEFAULT_TIMEOUT 1000
+
+/** "ping" options */
+struct ping_options {
+	/** Payload length */
+	unsigned int size;
+	/** Timeout (in ms) */
+	unsigned int timeout;
+};
+
+/** "ping" option list */
+static struct option_descriptor ping_opts[] = {
+	OPTION_DESC ( "size", 's', required_argument,
+		      struct ping_options, size, parse_integer ),
+	OPTION_DESC ( "timeout", 't', required_argument,
+		      struct ping_options, timeout, parse_integer ),
+};
+
+/** "ping" command descriptor */
+static struct command_descriptor ping_cmd =
+	COMMAND_DESC ( struct ping_options, ping_opts, 1, 1,
+		       "[--size <size>] [--timeout <timeout>] <host>" );
+
+/**
+ * The "ping" command
+ *
+ * @v argc		Argument count
+ * @v argv		Argument list
+ * @ret rc		Return status code
+ */
+static int ping_exec ( int argc, char **argv ) {
+	struct ping_options opts;
+	const char *hostname;
+	int rc;
+
+	/* Initialise options */
+	memset ( &opts, 0, sizeof ( opts ) );
+	opts.size = PING_DEFAULT_SIZE;
+	opts.timeout = PING_DEFAULT_TIMEOUT;
+
+	/* Parse options */
+	if ( ( rc = reparse_options ( argc, argv, &ping_cmd, &opts ) ) != 0 )
+		return rc;
+
+	/* Parse hostname */
+	hostname = argv[optind];
+
+	/* Ping */
+	if ( ( rc = ping ( hostname, opts.timeout, opts.size ) ) != 0 )
+		return rc;
+
+	return 0;
+}
+
+/** Ping command */
+struct command ping_command __command = {
+	.name = "ping",
+	.exec = ping_exec,
+};