Added network interface management commands

src/hci/commands/ifmgmt_cmd.c

@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2007 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <getopt.h>
+#include <vsprintf.h>
+#include <gpxe/netdevice.h>
+#include <gpxe/command.h>
+#include <usr/ifmgmt.h>
+
+/** @file
+ *
+ * Network interface management commands
+ *
+ */
+
+/** Options shared by all if<xxx> commands */
+static struct option ifcommon_longopts[] = {
+	{ "help", 0, NULL, 'h' },
+	{ NULL, 0, NULL, 0 },
+};
+
+/**
+ * Print syntax of if<xxx> command
+ *
+ * @v argv		Command arguments
+ * @v verb		Verb describing the action of the command
+ */
+static void ifcommon_syntax ( char **argv, const char *verb ) {
+	printf ( "Usage:\n"
+		 "  %s [<interface>] [<interface>...]\n"
+		 "\n"
+		 "%s the specified network interfaces\n",
+		 argv[0], verb );
+}
+
+/**
+ * Execute if<xxx> command over all network devices
+ *
+ * @v payload		Command to execute
+ * @ret rc		Exit code
+ */
+static int ifcommon_do_all ( int ( * payload ) ( struct net_device * ) ) {
+	struct net_device *netdev;
+	int rc = 0;
+
+	/* Print error if no network devices exist */
+	if ( ! have_netdevs() ) {
+		printf ( "No network interfaces\n" );
+		return 1;
+	}
+
+	/* Execute payload for each network device */
+	for_each_netdev ( netdev ) {
+		if ( payload ( netdev ) != 0 )
+			rc = 1;
+	}
+	return rc;
+}
+
+/**
+ * Execute if<xxx> command over list of network devices
+ *
+ * @v payload		Command to execute
+ * @ret rc		Exit code
+ */
+static int ifcommon_do_list ( int ( * payload ) ( struct net_device * ),
+			      char **list, unsigned int count ) {
+	const char *netdev_name;
+	struct net_device *netdev;
+	int rc = 0;
+
+	while ( count-- ) {
+		netdev_name = *(list++);
+		netdev = find_netdev ( netdev_name );
+		if ( ! netdev ) {
+			printf ( "%s: no such interface\n", netdev_name );
+			rc = 1;
+			continue;
+		}
+		if ( payload ( netdev ) != 0 )
+			rc = 1;
+	}
+	return rc;
+}
+
+/**
+ * Execute if<xxx> command
+ *
+ * @v payload		Command to execute
+ * @v verb		Verb describing the action of the command
+ * @v argc		Argument count
+ * @v argv		Argument list
+ * @ret rc		Exit code
+ */
+static __attribute__ (( regparm ( 2 ) )) int
+ifcommon_exec ( int ( * payload ) ( struct net_device * ),
+		const char *verb, int argc, char **argv ) {
+	int c;
+
+	/* Parse options */
+	while ( ( c = getopt_long ( argc, argv, "h", ifcommon_longopts,
+				    NULL ) ) >= 0 ) {
+		switch ( c ) {
+		case 'h':
+			/* Display help text */
+		default:
+			/* Unrecognised/invalid option */
+			ifcommon_syntax ( argv, verb );
+			return 1;
+		}
+	}
+
+	if ( optind == argc ) {
+		return ifcommon_do_all ( payload );
+	} else {
+		return ifcommon_do_list ( payload, &argv[optind],
+					  ( argc - optind ) );
+	}
+}
+
+/* "ifopen" command */
+
+static int ifopen_payload ( struct net_device *netdev ) {
+	return ifopen ( netdev );
+}
+
+static int ifopen_exec ( int argc, char **argv ) {
+	return ifcommon_exec ( ifopen_payload, "Open", argc, argv );
+}
+
+struct command ifopen_command __command = {
+	.name = "ifopen",
+	.exec = ifopen_exec,
+};
+
+/* "ifclose" command */
+
+static int ifclose_payload ( struct net_device *netdev ) {
+	ifclose ( netdev );
+	return 0;
+}
+
+static int ifclose_exec ( int argc, char **argv ) {
+	return ifcommon_exec ( ifclose_payload, "Close", argc, argv );
+}
+
+struct command ifclose_command __command = {
+	.name = "ifclose",
+	.exec = ifclose_exec,
+};
+
+/* "ifstat" command */
+
+static int ifstat_payload ( struct net_device *netdev ) {
+	ifstat ( netdev );
+	return 0;
+}
+
+static int ifstat_exec ( int argc, char **argv ) {
+	return ifcommon_exec ( ifstat_payload, "Display status of",
+			       argc, argv );
+}
+
+struct command ifstat_command __command = {
+	.name = "ifstat",
+	.exec = ifstat_exec,
+};