301 lines
8.2 KiB
C
301 lines
8.2 KiB
C
/*
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* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <ipxe/console.h>
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#include <ipxe/netdevice.h>
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#include <ipxe/device.h>
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#include <ipxe/job.h>
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#include <ipxe/monojob.h>
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#include <ipxe/timer.h>
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#include <ipxe/errortab.h>
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#include <usr/ifmgmt.h>
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/** @file
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*
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* Network interface management
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*
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*/
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/** Default time to wait for link-up */
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#define LINK_WAIT_TIMEOUT ( 15 * TICKS_PER_SEC )
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/** Default unsuccessful configuration status code */
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#define EADDRNOTAVAIL_CONFIG __einfo_error ( EINFO_EADDRNOTAVAIL_CONFIG )
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#define EINFO_EADDRNOTAVAIL_CONFIG \
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__einfo_uniqify ( EINFO_EADDRNOTAVAIL, 0x01, \
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"No configuration methods succeeded" )
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/** Human-readable error message */
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struct errortab ifmgmt_errors[] __errortab = {
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__einfo_errortab ( EINFO_EADDRNOTAVAIL_CONFIG ),
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};
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/**
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* Open network device
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*
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* @v netdev Network device
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* @ret rc Return status code
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*/
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int ifopen ( struct net_device *netdev ) {
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int rc;
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if ( ( rc = netdev_open ( netdev ) ) != 0 ) {
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printf ( "Could not open %s: %s\n",
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netdev->name, strerror ( rc ) );
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return rc;
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}
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return 0;
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}
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/**
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* Close network device
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*
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* @v netdev Network device
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*/
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void ifclose ( struct net_device *netdev ) {
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netdev_close ( netdev );
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}
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/**
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* Print network device error breakdown
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*
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* @v stats Network device statistics
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* @v prefix Message prefix
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*/
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static void ifstat_errors ( struct net_device_stats *stats,
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const char *prefix ) {
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unsigned int i;
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for ( i = 0 ; i < ( sizeof ( stats->errors ) /
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sizeof ( stats->errors[0] ) ) ; i++ ) {
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if ( stats->errors[i].count )
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printf ( " [%s: %d x \"%s\"]\n", prefix,
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stats->errors[i].count,
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strerror ( stats->errors[i].rc ) );
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}
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}
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/**
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* Print status of network device
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*
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* @v netdev Network device
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*/
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void ifstat ( struct net_device *netdev ) {
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printf ( "%s: %s using %s on %s (%s)\n"
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" [Link:%s%s, TX:%d TXE:%d RX:%d RXE:%d]\n",
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netdev->name, netdev_addr ( netdev ),
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netdev->dev->driver_name, netdev->dev->name,
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( netdev_is_open ( netdev ) ? "open" : "closed" ),
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( netdev_link_ok ( netdev ) ? "up" : "down" ),
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( netdev_link_blocked ( netdev ) ? " (blocked)" : "" ),
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netdev->tx_stats.good, netdev->tx_stats.bad,
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netdev->rx_stats.good, netdev->rx_stats.bad );
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if ( ! netdev_link_ok ( netdev ) ) {
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printf ( " [Link status: %s]\n",
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strerror ( netdev->link_rc ) );
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}
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ifstat_errors ( &netdev->tx_stats, "TXE" );
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ifstat_errors ( &netdev->rx_stats, "RXE" );
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}
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/** Network device poller */
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struct ifpoller {
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/** Job control interface */
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struct interface job;
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/** Network device */
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struct net_device *netdev;
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/** Network device configurator (if applicable) */
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struct net_device_configurator *configurator;
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/**
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* Check progress
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*
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* @v ifpoller Network device poller
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* @ret ongoing_rc Ongoing job status code (if known)
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*/
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int ( * progress ) ( struct ifpoller *ifpoller );
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};
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/**
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* Report network device poller progress
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*
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* @v ifpoller Network device poller
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* @v progress Progress report to fill in
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* @ret ongoing_rc Ongoing job status code (if known)
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*/
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static int ifpoller_progress ( struct ifpoller *ifpoller,
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struct job_progress *progress __unused ) {
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/* Hand off to current progress checker */
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return ifpoller->progress ( ifpoller );
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}
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/** Network device poller operations */
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static struct interface_operation ifpoller_job_op[] = {
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INTF_OP ( job_progress, struct ifpoller *, ifpoller_progress ),
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};
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/** Network device poller descriptor */
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static struct interface_descriptor ifpoller_job_desc =
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INTF_DESC ( struct ifpoller, job, ifpoller_job_op );
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/**
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* Poll network device until completion
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*
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* @v netdev Network device
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* @v configurator Network device configurator (if applicable)
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* @v timeout Timeout period, in ticks
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* @v progress Method to check progress
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* @ret rc Return status code
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*/
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static int ifpoller_wait ( struct net_device *netdev,
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struct net_device_configurator *configurator,
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unsigned long timeout,
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int ( * progress ) ( struct ifpoller *ifpoller ) ) {
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static struct ifpoller ifpoller = {
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.job = INTF_INIT ( ifpoller_job_desc ),
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};
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ifpoller.netdev = netdev;
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ifpoller.configurator = configurator;
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ifpoller.progress = progress;
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intf_plug_plug ( &monojob, &ifpoller.job );
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return monojob_wait ( "", timeout );
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}
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/**
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* Check link-up progress
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*
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* @v ifpoller Network device poller
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* @ret ongoing_rc Ongoing job status code (if known)
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*/
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static int iflinkwait_progress ( struct ifpoller *ifpoller ) {
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struct net_device *netdev = ifpoller->netdev;
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int ongoing_rc = netdev->link_rc;
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/* Terminate successfully if link is up */
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if ( ongoing_rc == 0 )
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intf_close ( &ifpoller->job, 0 );
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/* Otherwise, report link status as ongoing job status */
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return ongoing_rc;
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}
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/**
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* Wait for link-up, with status indication
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*
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* @v netdev Network device
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* @v timeout Timeout period, in ticks
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*/
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int iflinkwait ( struct net_device *netdev, unsigned long timeout ) {
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int rc;
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/* Ensure device is open */
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if ( ( rc = ifopen ( netdev ) ) != 0 )
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return rc;
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/* Return immediately if link is already up */
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netdev_poll ( netdev );
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if ( netdev_link_ok ( netdev ) )
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return 0;
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/* Wait for link-up */
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printf ( "Waiting for link-up on %s", netdev->name );
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return ifpoller_wait ( netdev, NULL, timeout, iflinkwait_progress );
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}
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/**
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* Check configuration progress
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*
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* @v ifpoller Network device poller
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* @ret ongoing_rc Ongoing job status code (if known)
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*/
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static int ifconf_progress ( struct ifpoller *ifpoller ) {
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struct net_device *netdev = ifpoller->netdev;
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struct net_device_configurator *configurator = ifpoller->configurator;
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struct net_device_configuration *config;
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int rc;
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/* Do nothing unless configuration has completed */
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if ( netdev_configuration_in_progress ( netdev ) )
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return 0;
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/* Terminate with appropriate overall return status code */
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if ( configurator ) {
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config = netdev_configuration ( netdev, configurator );
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rc = config->rc;
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} else {
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rc = ( netdev_configuration_ok ( netdev ) ?
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0 : -EADDRNOTAVAIL_CONFIG );
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}
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intf_close ( &ifpoller->job, rc );
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return rc;
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}
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/**
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* Perform network device configuration
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*
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* @v netdev Network device
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* @v configurator Network device configurator, or NULL to use all
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* @ret rc Return status code
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*/
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int ifconf ( struct net_device *netdev,
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struct net_device_configurator *configurator ) {
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int rc;
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/* Ensure device is open and link is up */
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if ( ( rc = iflinkwait ( netdev, LINK_WAIT_TIMEOUT ) ) != 0 )
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return rc;
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/* Start configuration */
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if ( configurator ) {
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if ( ( rc = netdev_configure ( netdev, configurator ) ) != 0 ) {
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printf ( "Could not configure %s via %s: %s\n",
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netdev->name, configurator->name,
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strerror ( rc ) );
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return rc;
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}
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} else {
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if ( ( rc = netdev_configure_all ( netdev ) ) != 0 ) {
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printf ( "Could not configure %s: %s\n",
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netdev->name, strerror ( rc ) );
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return rc;
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}
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}
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/* Wait for configuration to complete */
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printf ( "Configuring %s%s%s(%s %s)",
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( configurator ? "[" : "" ),
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( configurator ? configurator->name : "" ),
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( configurator ? "] " : "" ),
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netdev->name, netdev->ll_protocol->ntoa ( netdev->ll_addr ) );
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return ifpoller_wait ( netdev, configurator, 0, ifconf_progress );
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}
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