1 files changed, 289 insertions, 0 deletions

diff --git a/qemu/roms/ipxe/src/usr/ifmgmt.c b/qemu/roms/ipxe/src/usr/ifmgmt.c
new file mode 100644
index 000000000..3d05895c2
--- /dev/null
+++ b/qemu/roms/ipxe/src/usr/ifmgmt.c
@@ -0,0 +1,289 @@
+/*
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <ipxe/console.h>
+#include <ipxe/netdevice.h>
+#include <ipxe/device.h>
+#include <ipxe/job.h>
+#include <ipxe/monojob.h>
+#include <ipxe/timer.h>
+#include <usr/ifmgmt.h>
+
+/** @file
+ *
+ * Network interface management
+ *
+ */
+
+/** Default time to wait for link-up */
+#define LINK_WAIT_TIMEOUT ( 15 * TICKS_PER_SEC )
+
+/** Default unsuccessful configuration status code */
+#define EADDRNOTAVAIL_CONFIG __einfo_error ( EINFO_EADDRNOTAVAIL_CONFIG )
+#define EINFO_EADDRNOTAVAIL_CONFIG					\
+	__einfo_uniqify ( EINFO_EADDRNOTAVAIL, 0x01,			\
+			  "No configuration methods succeeded" )
+
+/**
+ * Open network device
+ *
+ * @v netdev		Network device
+ * @ret rc		Return status code
+ */
+int ifopen ( struct net_device *netdev ) {
+	int rc;
+
+	if ( ( rc = netdev_open ( netdev ) ) != 0 ) {
+		printf ( "Could not open %s: %s\n",
+			 netdev->name, strerror ( rc ) );
+		return rc;
+	}
+
+	return 0;
+}
+
+/**
+ * Close network device
+ *
+ * @v netdev		Network device
+ */
+void ifclose ( struct net_device *netdev ) {
+	netdev_close ( netdev );
+}
+
+/**
+ * Print network device error breakdown
+ *
+ * @v stats		Network device statistics
+ * @v prefix		Message prefix
+ */
+static void ifstat_errors ( struct net_device_stats *stats,
+			    const char *prefix ) {
+	unsigned int i;
+
+	for ( i = 0 ; i < ( sizeof ( stats->errors ) /
+			    sizeof ( stats->errors[0] ) ) ; i++ ) {
+		if ( stats->errors[i].count )
+			printf ( "  [%s: %d x \"%s\"]\n", prefix,
+				 stats->errors[i].count,
+				 strerror ( stats->errors[i].rc ) );
+	}
+}
+
+/**
+ * Print status of network device
+ *
+ * @v netdev		Network device
+ */
+void ifstat ( struct net_device *netdev ) {
+	printf ( "%s: %s using %s on %s (%s)\n"
+		 "  [Link:%s, TX:%d TXE:%d RX:%d RXE:%d]\n",
+		 netdev->name, netdev_addr ( netdev ),
+		 netdev->dev->driver_name, netdev->dev->name,
+		 ( netdev_is_open ( netdev ) ? "open" : "closed" ),
+		 ( netdev_link_ok ( netdev ) ? "up" : "down" ),
+		 netdev->tx_stats.good, netdev->tx_stats.bad,
+		 netdev->rx_stats.good, netdev->rx_stats.bad );
+	if ( ! netdev_link_ok ( netdev ) ) {
+		printf ( "  [Link status: %s]\n",
+			 strerror ( netdev->link_rc ) );
+	}
+	ifstat_errors ( &netdev->tx_stats, "TXE" );
+	ifstat_errors ( &netdev->rx_stats, "RXE" );
+}
+
+/** Network device poller */
+struct ifpoller {
+	/** Job control interface */
+	struct interface job;
+	/** Network device */
+	struct net_device *netdev;
+	/** Network device configurator (if applicable) */
+	struct net_device_configurator *configurator;
+	/**
+	 * Check progress
+	 *
+	 * @v ifpoller		Network device poller
+	 * @ret ongoing_rc	Ongoing job status code (if known)
+	 */
+	int ( * progress ) ( struct ifpoller *ifpoller );
+};
+
+/**
+ * Report network device poller progress
+ *
+ * @v ifpoller		Network device poller
+ * @v progress		Progress report to fill in
+ * @ret ongoing_rc	Ongoing job status code (if known)
+ */
+static int ifpoller_progress ( struct ifpoller *ifpoller,
+			       struct job_progress *progress __unused ) {
+
+	/* Hand off to current progress checker */
+	return ifpoller->progress ( ifpoller );
+}
+
+/** Network device poller operations */
+static struct interface_operation ifpoller_job_op[] = {
+	INTF_OP ( job_progress, struct ifpoller *, ifpoller_progress ),
+};
+
+/** Network device poller descriptor */
+static struct interface_descriptor ifpoller_job_desc =
+	INTF_DESC ( struct ifpoller, job, ifpoller_job_op );
+
+/**
+ * Poll network device until completion
+ *
+ * @v netdev		Network device
+ * @v configurator	Network device configurator (if applicable)
+ * @v timeout		Timeout period, in ticks
+ * @v progress		Method to check progress
+ * @ret rc		Return status code
+ */
+static int ifpoller_wait ( struct net_device *netdev,
+			   struct net_device_configurator *configurator,
+			   unsigned long timeout,
+			   int ( * progress ) ( struct ifpoller *ifpoller ) ) {
+	static struct ifpoller ifpoller = {
+		.job = INTF_INIT ( ifpoller_job_desc ),
+	};
+
+	ifpoller.netdev = netdev;
+	ifpoller.configurator = configurator;
+	ifpoller.progress = progress;
+	intf_plug_plug ( &monojob, &ifpoller.job );
+	return monojob_wait ( "", timeout );
+}
+
+/**
+ * Check link-up progress
+ *
+ * @v ifpoller		Network device poller
+ * @ret ongoing_rc	Ongoing job status code (if known)
+ */
+static int iflinkwait_progress ( struct ifpoller *ifpoller ) {
+	struct net_device *netdev = ifpoller->netdev;
+	int ongoing_rc = netdev->link_rc;
+
+	/* Terminate successfully if link is up */
+	if ( ongoing_rc == 0 )
+		intf_close ( &ifpoller->job, 0 );
+
+	/* Otherwise, report link status as ongoing job status */
+	return ongoing_rc;
+}
+
+/**
+ * Wait for link-up, with status indication
+ *
+ * @v netdev		Network device
+ * @v timeout		Timeout period, in ticks
+ */
+int iflinkwait ( struct net_device *netdev, unsigned long timeout ) {
+	int rc;
+
+	/* Ensure device is open */
+	if ( ( rc = ifopen ( netdev ) ) != 0 )
+		return rc;
+
+	/* Return immediately if link is already up */
+	netdev_poll ( netdev );
+	if ( netdev_link_ok ( netdev ) )
+		return 0;
+
+	/* Wait for link-up */
+	printf ( "Waiting for link-up on %s", netdev->name );
+	return ifpoller_wait ( netdev, NULL, timeout, iflinkwait_progress );
+}
+
+/**
+ * Check configuration progress
+ *
+ * @v ifpoller		Network device poller
+ * @ret ongoing_rc	Ongoing job status code (if known)
+ */
+static int ifconf_progress ( struct ifpoller *ifpoller ) {
+	struct net_device *netdev = ifpoller->netdev;
+	struct net_device_configurator *configurator = ifpoller->configurator;
+	struct net_device_configuration *config;
+	int rc;
+
+	/* Do nothing unless configuration has completed */
+	if ( netdev_configuration_in_progress ( netdev ) )
+		return 0;
+
+	/* Terminate with appropriate overall return status code */
+	if ( configurator ) {
+		config = netdev_configuration ( netdev, configurator );
+		rc = config->rc;
+	} else {
+		rc = ( netdev_configuration_ok ( netdev ) ?
+		       0 : -EADDRNOTAVAIL_CONFIG );
+	}
+	intf_close ( &ifpoller->job, rc );
+
+	return rc;
+}
+
+/**
+ * Perform network device configuration
+ *
+ * @v netdev		Network device
+ * @v configurator	Network device configurator, or NULL to use all
+ * @ret rc		Return status code
+ */
+int ifconf ( struct net_device *netdev,
+	     struct net_device_configurator *configurator ) {
+	int rc;
+
+	/* Ensure device is open and link is up */
+	if ( ( rc = iflinkwait ( netdev, LINK_WAIT_TIMEOUT ) ) != 0 )
+		return rc;
+
+	/* Start configuration */
+	if ( configurator ) {
+		if ( ( rc = netdev_configure ( netdev, configurator ) ) != 0 ) {
+			printf ( "Could not configure %s via %s: %s\n",
+				 netdev->name, configurator->name,
+				 strerror ( rc ) );
+			return rc;
+		}
+	} else {
+		if ( ( rc = netdev_configure_all ( netdev ) ) != 0 ) {
+			printf ( "Could not configure %s: %s\n",
+				 netdev->name, strerror ( rc ) );
+			return rc;
+		}
+	}
+
+	/* Wait for configuration to complete */
+	printf ( "Configuring %s%s%s(%s %s)",
+		 ( configurator ? "[" : "" ),
+		 ( configurator ? configurator->name : "" ),
+		 ( configurator ? "] " : "" ),
+		 netdev->name, netdev->ll_protocol->ntoa ( netdev->ll_addr ) );
+	return ifpoller_wait ( netdev, configurator, 0, ifconf_progress );
+}