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1275 |
phoenix |
/* $Id: isdn_net.c,v 1.1.1.1 2004-04-15 02:03:35 phoenix Exp $
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*
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* Linux ISDN subsystem, network interfaces and related functions (linklevel).
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*
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* Copyright 1994-1998 by Fritz Elfert (fritz@isdn4linux.de)
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* Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
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* Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de)
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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* Data Over Voice (DOV) support added - Guy Ellis 23-Mar-02
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* guy@traverse.com.au
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* Outgoing calls - looks for a 'V' in first char of dialed number
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* Incoming calls - checks first character of eaz as follows:
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* Numeric - accept DATA only - original functionality
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* 'V' - accept VOICE (DOV) only
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* 'B' - accept BOTH DATA and DOV types
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*
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* Jan 2001: fix CISCO HDLC Bjoern A. Zeeb <i4l@zabbadoz.net>
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* for info on the protocol, see
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* http://i4l.zabbadoz.net/i4l/cisco-hdlc.txt
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*/
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#include <linux/config.h>
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#include <linux/isdn.h>
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#include <net/arp.h>
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#include <net/dst.h>
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#include <net/pkt_sched.h>
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#include <linux/inetdevice.h>
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#include "isdn_common.h"
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#include "isdn_net.h"
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#ifdef CONFIG_ISDN_PPP
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#include "isdn_ppp.h"
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#endif
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#ifdef CONFIG_ISDN_X25
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#include <linux/concap.h>
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#include "isdn_concap.h"
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#endif
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/*
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* Outline of new tbusy handling:
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*
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* Old method, roughly spoken, consisted of setting tbusy when entering
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* isdn_net_start_xmit() and at several other locations and clearing
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* it from isdn_net_start_xmit() thread when sending was successful.
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*
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* With 2.3.x multithreaded network core, to prevent problems, tbusy should
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* only be set by the isdn_net_start_xmit() thread and only when a tx-busy
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* condition is detected. Other threads (in particular isdn_net_stat_callb())
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* are only allowed to clear tbusy.
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*
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* -HE
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*/
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/*
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* About SOFTNET:
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* Most of the changes were pretty obvious and basically done by HE already.
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*
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* One problem of the isdn net device code is that is uses struct net_device
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* for masters and slaves. However, only master interface are registered to
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* the network layer, and therefore, it only makes sense to call netif_*
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* functions on them.
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*
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* --KG
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*/
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/*
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* Find out if the netdevice has been ifup-ed yet.
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* For slaves, look at the corresponding master.
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*/
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static __inline__ int isdn_net_device_started(isdn_net_dev *n)
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{
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isdn_net_local *lp = n->local;
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struct net_device *dev;
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if (lp->master)
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dev = lp->master;
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else
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dev = &n->dev;
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return netif_running(dev);
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}
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/*
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* wake up the network -> net_device queue.
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* For slaves, wake the corresponding master interface.
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*/
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static __inline__ void isdn_net_device_wake_queue(isdn_net_local *lp)
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{
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if (lp->master)
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netif_wake_queue(lp->master);
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else
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netif_wake_queue(&lp->netdev->dev);
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}
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/*
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* stop the network -> net_device queue.
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* For slaves, stop the corresponding master interface.
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*/
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static __inline__ void isdn_net_device_stop_queue(isdn_net_local *lp)
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{
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if (lp->master)
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netif_stop_queue(lp->master);
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else
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netif_stop_queue(&lp->netdev->dev);
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}
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/*
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* find out if the net_device which this lp belongs to (lp can be
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* master or slave) is busy. It's busy iff all (master and slave)
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* queues are busy
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*/
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static __inline__ int isdn_net_device_busy(isdn_net_local *lp)
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{
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isdn_net_local *nlp;
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isdn_net_dev *nd;
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unsigned long flags;
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if (!isdn_net_lp_busy(lp))
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return 0;
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if (lp->master)
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nd = ((isdn_net_local *) lp->master->priv)->netdev;
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else
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nd = lp->netdev;
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spin_lock_irqsave(&nd->queue_lock, flags);
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nlp = lp->next;
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while (nlp != lp) {
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if (!isdn_net_lp_busy(nlp)) {
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spin_unlock_irqrestore(&nd->queue_lock, flags);
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return 0;
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}
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nlp = nlp->next;
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}
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spin_unlock_irqrestore(&nd->queue_lock, flags);
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return 1;
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}
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static __inline__ void isdn_net_inc_frame_cnt(isdn_net_local *lp)
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{
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atomic_inc(&lp->frame_cnt);
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if (isdn_net_device_busy(lp))
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isdn_net_device_stop_queue(lp);
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}
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static __inline__ void isdn_net_dec_frame_cnt(isdn_net_local *lp)
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{
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atomic_dec(&lp->frame_cnt);
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if (!(isdn_net_device_busy(lp))) {
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if (!skb_queue_empty(&lp->super_tx_queue)) {
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queue_task(&lp->tqueue, &tq_immediate);
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mark_bh(IMMEDIATE_BH);
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} else {
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isdn_net_device_wake_queue(lp);
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}
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}
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}
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static __inline__ void isdn_net_zero_frame_cnt(isdn_net_local *lp)
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{
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atomic_set(&lp->frame_cnt, 0);
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}
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/* For 2.2.x we leave the transmitter busy timeout at 2 secs, just
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* to be safe.
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* For 2.3.x we push it up to 20 secs, because call establishment
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* (in particular callback) may take such a long time, and we
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* don't want confusing messages in the log. However, there is a slight
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* possibility that this large timeout will break other things like MPPP,
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* which might rely on the tx timeout. If so, we'll find out this way...
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*/
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#define ISDN_NET_TX_TIMEOUT (20*HZ)
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/* Prototypes */
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int isdn_net_force_dial_lp(isdn_net_local *);
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static int isdn_net_start_xmit(struct sk_buff *, struct net_device *);
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static void isdn_net_ciscohdlck_connected(isdn_net_local *lp);
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static void isdn_net_ciscohdlck_disconnected(isdn_net_local *lp);
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char *isdn_net_revision = "$Revision: 1.1.1.1 $";
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/*
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* Code for raw-networking over ISDN
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*/
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static void
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isdn_net_unreachable(struct net_device *dev, struct sk_buff *skb, char *reason)
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{
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if(skb) {
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u_short proto = ntohs(skb->protocol);
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| 199 |
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printk(KERN_DEBUG "isdn_net: %s: %s, signalling dst_link_failure %s\n",
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dev->name,
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(reason != NULL) ? reason : "unknown",
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(proto != ETH_P_IP) ? "Protocol != ETH_P_IP" : "");
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dst_link_failure(skb);
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}
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else { /* dial not triggered by rawIP packet */
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printk(KERN_DEBUG "isdn_net: %s: %s\n",
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dev->name,
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(reason != NULL) ? reason : "reason unknown");
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}
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}
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static void
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isdn_net_reset(struct net_device *dev)
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{
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#ifdef CONFIG_ISDN_X25
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struct concap_device_ops * dops =
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( (isdn_net_local *) dev->priv ) -> dops;
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struct concap_proto * cprot =
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( (isdn_net_local *) dev->priv ) -> netdev -> cprot;
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#endif
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ulong flags;
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| 224 |
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/* not sure if the cli() is needed at all --KG */
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save_flags(flags);
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cli(); /* Avoid glitch on writes to CMD regs */
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#ifdef CONFIG_ISDN_X25
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if( cprot && cprot -> pops && dops )
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cprot -> pops -> restart ( cprot, dev, dops );
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#endif
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restore_flags(flags);
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}
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| 233 |
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| 234 |
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/* Open/initialize the board. */
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static int
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isdn_net_open(struct net_device *dev)
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| 237 |
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{
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| 238 |
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int i;
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| 239 |
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struct net_device *p;
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| 240 |
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struct in_device *in_dev;
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| 241 |
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| 242 |
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/* moved here from isdn_net_reset, because only the master has an
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| 243 |
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interface associated which is supposed to be started. BTW:
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| 244 |
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we need to call netif_start_queue, not netif_wake_queue here */
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| 245 |
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netif_start_queue(dev);
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| 246 |
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| 247 |
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isdn_net_reset(dev);
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| 248 |
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/* Fill in the MAC-level header (not needed, but for compatibility... */
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for (i = 0; i < ETH_ALEN - sizeof(u32); i++)
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dev->dev_addr[i] = 0xfc;
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| 251 |
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if ((in_dev = dev->ip_ptr) != NULL) {
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| 252 |
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/*
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| 253 |
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* Any address will do - we take the first
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| 254 |
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*/
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| 255 |
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struct in_ifaddr *ifa = in_dev->ifa_list;
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| 256 |
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if (ifa != NULL)
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| 257 |
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memcpy(dev->dev_addr+2, &ifa->ifa_local, 4);
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| 258 |
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}
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| 259 |
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| 260 |
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/* If this interface has slaves, start them also */
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| 261 |
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| 262 |
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if ((p = (((isdn_net_local *) dev->priv)->slave))) {
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| 263 |
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while (p) {
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| 264 |
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isdn_net_reset(p);
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| 265 |
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p = (((isdn_net_local *) p->priv)->slave);
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| 266 |
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}
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| 267 |
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}
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| 268 |
|
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isdn_MOD_INC_USE_COUNT();
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| 269 |
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return 0;
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| 270 |
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}
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| 271 |
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| 272 |
|
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/*
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| 273 |
|
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* Assign an ISDN-channel to a net-interface
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| 274 |
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*/
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| 275 |
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static void
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| 276 |
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isdn_net_bind_channel(isdn_net_local * lp, int idx)
|
| 277 |
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{
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| 278 |
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ulong flags;
|
| 279 |
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| 280 |
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save_flags(flags);
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| 281 |
|
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cli();
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| 282 |
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lp->flags |= ISDN_NET_CONNECTED;
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| 283 |
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lp->isdn_device = dev->drvmap[idx];
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| 284 |
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lp->isdn_channel = dev->chanmap[idx];
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| 285 |
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dev->rx_netdev[idx] = lp->netdev;
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| 286 |
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dev->st_netdev[idx] = lp->netdev;
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| 287 |
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restore_flags(flags);
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| 288 |
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}
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| 289 |
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| 290 |
|
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/*
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| 291 |
|
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* unbind a net-interface (resets interface after an error)
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| 292 |
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*/
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| 293 |
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static void
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| 294 |
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isdn_net_unbind_channel(isdn_net_local * lp)
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| 295 |
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{
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| 296 |
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ulong flags;
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| 297 |
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| 298 |
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save_flags(flags);
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| 299 |
|
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cli();
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| 300 |
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skb_queue_purge(&lp->super_tx_queue);
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| 301 |
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| 302 |
|
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if (!lp->master) { /* reset only master device */
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| 303 |
|
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/* Moral equivalent of dev_purge_queues():
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| 304 |
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BEWARE! This chunk of code cannot be called from hardware
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| 305 |
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interrupt handler. I hope it is true. --ANK
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| 306 |
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*/
|
| 307 |
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qdisc_reset(lp->netdev->dev.qdisc);
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| 308 |
|
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}
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| 309 |
|
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lp->dialstate = 0;
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| 310 |
|
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dev->rx_netdev[isdn_dc2minor(lp->isdn_device, lp->isdn_channel)] = NULL;
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| 311 |
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dev->st_netdev[isdn_dc2minor(lp->isdn_device, lp->isdn_channel)] = NULL;
|
| 312 |
|
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isdn_free_channel(lp->isdn_device, lp->isdn_channel, ISDN_USAGE_NET);
|
| 313 |
|
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lp->flags &= ~ISDN_NET_CONNECTED;
|
| 314 |
|
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lp->isdn_device = -1;
|
| 315 |
|
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lp->isdn_channel = -1;
|
| 316 |
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|
| 317 |
|
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restore_flags(flags);
|
| 318 |
|
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}
|
| 319 |
|
|
|
| 320 |
|
|
/*
|
| 321 |
|
|
* Perform auto-hangup and cps-calculation for net-interfaces.
|
| 322 |
|
|
*
|
| 323 |
|
|
* auto-hangup:
|
| 324 |
|
|
* Increment idle-counter (this counter is reset on any incoming or
|
| 325 |
|
|
* outgoing packet), if counter exceeds configured limit either do a
|
| 326 |
|
|
* hangup immediately or - if configured - wait until just before the next
|
| 327 |
|
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* charge-info.
|
| 328 |
|
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*
|
| 329 |
|
|
* cps-calculation (needed for dynamic channel-bundling):
|
| 330 |
|
|
* Since this function is called every second, simply reset the
|
| 331 |
|
|
* byte-counter of the interface after copying it to the cps-variable.
|
| 332 |
|
|
*/
|
| 333 |
|
|
unsigned long last_jiffies = -HZ;
|
| 334 |
|
|
|
| 335 |
|
|
void
|
| 336 |
|
|
isdn_net_autohup()
|
| 337 |
|
|
{
|
| 338 |
|
|
isdn_net_dev *p = dev->netdev;
|
| 339 |
|
|
int anymore;
|
| 340 |
|
|
|
| 341 |
|
|
anymore = 0;
|
| 342 |
|
|
while (p) {
|
| 343 |
|
|
isdn_net_local *l = p->local;
|
| 344 |
|
|
if (jiffies == last_jiffies)
|
| 345 |
|
|
l->cps = l->transcount;
|
| 346 |
|
|
else
|
| 347 |
|
|
l->cps = (l->transcount * HZ) / (jiffies - last_jiffies);
|
| 348 |
|
|
l->transcount = 0;
|
| 349 |
|
|
if (dev->net_verbose > 3)
|
| 350 |
|
|
printk(KERN_DEBUG "%s: %d bogocps\n", l->name, l->cps);
|
| 351 |
|
|
if ((l->flags & ISDN_NET_CONNECTED) && (!l->dialstate)) {
|
| 352 |
|
|
anymore = 1;
|
| 353 |
|
|
l->huptimer++;
|
| 354 |
|
|
/*
|
| 355 |
|
|
* if there is some dialmode where timeout-hangup
|
| 356 |
|
|
* should _not_ be done, check for that here
|
| 357 |
|
|
*/
|
| 358 |
|
|
if ((l->onhtime) &&
|
| 359 |
|
|
(l->huptimer > l->onhtime))
|
| 360 |
|
|
{
|
| 361 |
|
|
if (l->hupflags & ISDN_MANCHARGE &&
|
| 362 |
|
|
l->hupflags & ISDN_CHARGEHUP) {
|
| 363 |
|
|
while (time_after(jiffies, l->chargetime + l->chargeint))
|
| 364 |
|
|
l->chargetime += l->chargeint;
|
| 365 |
|
|
if (time_after(jiffies, l->chargetime + l->chargeint - 2 * HZ))
|
| 366 |
|
|
if (l->outgoing || l->hupflags & ISDN_INHUP)
|
| 367 |
|
|
isdn_net_hangup(&p->dev);
|
| 368 |
|
|
} else if (l->outgoing) {
|
| 369 |
|
|
if (l->hupflags & ISDN_CHARGEHUP) {
|
| 370 |
|
|
if (l->hupflags & ISDN_WAITCHARGE) {
|
| 371 |
|
|
printk(KERN_DEBUG "isdn_net: Hupflags of %s are %X\n",
|
| 372 |
|
|
l->name, l->hupflags);
|
| 373 |
|
|
isdn_net_hangup(&p->dev);
|
| 374 |
|
|
} else if (time_after(jiffies, l->chargetime + l->chargeint)) {
|
| 375 |
|
|
printk(KERN_DEBUG
|
| 376 |
|
|
"isdn_net: %s: chtime = %lu, chint = %d\n",
|
| 377 |
|
|
l->name, l->chargetime, l->chargeint);
|
| 378 |
|
|
isdn_net_hangup(&p->dev);
|
| 379 |
|
|
}
|
| 380 |
|
|
} else
|
| 381 |
|
|
isdn_net_hangup(&p->dev);
|
| 382 |
|
|
} else if (l->hupflags & ISDN_INHUP)
|
| 383 |
|
|
isdn_net_hangup(&p->dev);
|
| 384 |
|
|
}
|
| 385 |
|
|
|
| 386 |
|
|
if(dev->global_flags & ISDN_GLOBAL_STOPPED || (ISDN_NET_DIALMODE(*l) == ISDN_NET_DM_OFF)) {
|
| 387 |
|
|
isdn_net_hangup(&p->dev);
|
| 388 |
|
|
break;
|
| 389 |
|
|
}
|
| 390 |
|
|
}
|
| 391 |
|
|
p = (isdn_net_dev *) p->next;
|
| 392 |
|
|
}
|
| 393 |
|
|
last_jiffies = jiffies;
|
| 394 |
|
|
isdn_timer_ctrl(ISDN_TIMER_NETHANGUP, anymore);
|
| 395 |
|
|
}
|
| 396 |
|
|
|
| 397 |
|
|
static void isdn_net_lp_disconnected(isdn_net_local *lp)
|
| 398 |
|
|
{
|
| 399 |
|
|
isdn_net_rm_from_bundle(lp);
|
| 400 |
|
|
}
|
| 401 |
|
|
|
| 402 |
|
|
/*
|
| 403 |
|
|
* Handle status-messages from ISDN-interfacecard.
|
| 404 |
|
|
* This function is called from within the main-status-dispatcher
|
| 405 |
|
|
* isdn_status_callback, which itself is called from the low-level driver.
|
| 406 |
|
|
* Return: 1 = Event handled, 0 = not for us or unknown Event.
|
| 407 |
|
|
*/
|
| 408 |
|
|
int
|
| 409 |
|
|
isdn_net_stat_callback(int idx, isdn_ctrl *c)
|
| 410 |
|
|
{
|
| 411 |
|
|
isdn_net_dev *p = dev->st_netdev[idx];
|
| 412 |
|
|
int cmd = c->command;
|
| 413 |
|
|
|
| 414 |
|
|
if (p) {
|
| 415 |
|
|
isdn_net_local *lp = p->local;
|
| 416 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 417 |
|
|
struct concap_proto *cprot = lp -> netdev -> cprot;
|
| 418 |
|
|
struct concap_proto_ops *pops = cprot ? cprot -> pops : 0;
|
| 419 |
|
|
#endif
|
| 420 |
|
|
switch (cmd) {
|
| 421 |
|
|
case ISDN_STAT_BSENT:
|
| 422 |
|
|
/* A packet has successfully been sent out */
|
| 423 |
|
|
if ((lp->flags & ISDN_NET_CONNECTED) &&
|
| 424 |
|
|
(!lp->dialstate)) {
|
| 425 |
|
|
isdn_net_dec_frame_cnt(lp);
|
| 426 |
|
|
lp->stats.tx_packets++;
|
| 427 |
|
|
lp->stats.tx_bytes += c->parm.length;
|
| 428 |
|
|
}
|
| 429 |
|
|
return 1;
|
| 430 |
|
|
case ISDN_STAT_DCONN:
|
| 431 |
|
|
/* D-Channel is up */
|
| 432 |
|
|
switch (lp->dialstate) {
|
| 433 |
|
|
case 4:
|
| 434 |
|
|
case 7:
|
| 435 |
|
|
case 8:
|
| 436 |
|
|
lp->dialstate++;
|
| 437 |
|
|
return 1;
|
| 438 |
|
|
case 12:
|
| 439 |
|
|
lp->dialstate = 5;
|
| 440 |
|
|
return 1;
|
| 441 |
|
|
}
|
| 442 |
|
|
break;
|
| 443 |
|
|
case ISDN_STAT_DHUP:
|
| 444 |
|
|
/* Either D-Channel-hangup or error during dialout */
|
| 445 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 446 |
|
|
/* If we are not connencted then dialing had
|
| 447 |
|
|
failed. If there are generic encap protocol
|
| 448 |
|
|
receiver routines signal the closure of
|
| 449 |
|
|
the link*/
|
| 450 |
|
|
|
| 451 |
|
|
if( !(lp->flags & ISDN_NET_CONNECTED)
|
| 452 |
|
|
&& pops && pops -> disconn_ind )
|
| 453 |
|
|
pops -> disconn_ind(cprot);
|
| 454 |
|
|
#endif /* CONFIG_ISDN_X25 */
|
| 455 |
|
|
if ((!lp->dialstate) && (lp->flags & ISDN_NET_CONNECTED)) {
|
| 456 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_CISCOHDLCK)
|
| 457 |
|
|
isdn_net_ciscohdlck_disconnected(lp);
|
| 458 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 459 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP)
|
| 460 |
|
|
isdn_ppp_free(lp);
|
| 461 |
|
|
#endif
|
| 462 |
|
|
isdn_net_lp_disconnected(lp);
|
| 463 |
|
|
isdn_all_eaz(lp->isdn_device, lp->isdn_channel);
|
| 464 |
|
|
printk(KERN_INFO "%s: remote hangup\n", lp->name);
|
| 465 |
|
|
printk(KERN_INFO "%s: Chargesum is %d\n", lp->name,
|
| 466 |
|
|
lp->charge);
|
| 467 |
|
|
isdn_net_unbind_channel(lp);
|
| 468 |
|
|
return 1;
|
| 469 |
|
|
}
|
| 470 |
|
|
break;
|
| 471 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 472 |
|
|
case ISDN_STAT_BHUP:
|
| 473 |
|
|
/* B-Channel-hangup */
|
| 474 |
|
|
/* try if there are generic encap protocol
|
| 475 |
|
|
receiver routines and signal the closure of
|
| 476 |
|
|
the link */
|
| 477 |
|
|
if( pops && pops -> disconn_ind ){
|
| 478 |
|
|
pops -> disconn_ind(cprot);
|
| 479 |
|
|
return 1;
|
| 480 |
|
|
}
|
| 481 |
|
|
break;
|
| 482 |
|
|
#endif /* CONFIG_ISDN_X25 */
|
| 483 |
|
|
case ISDN_STAT_BCONN:
|
| 484 |
|
|
/* B-Channel is up */
|
| 485 |
|
|
isdn_net_zero_frame_cnt(lp);
|
| 486 |
|
|
switch (lp->dialstate) {
|
| 487 |
|
|
case 5:
|
| 488 |
|
|
case 6:
|
| 489 |
|
|
case 7:
|
| 490 |
|
|
case 8:
|
| 491 |
|
|
case 9:
|
| 492 |
|
|
case 10:
|
| 493 |
|
|
case 12:
|
| 494 |
|
|
if (lp->dialstate <= 6) {
|
| 495 |
|
|
dev->usage[idx] |= ISDN_USAGE_OUTGOING;
|
| 496 |
|
|
isdn_info_update();
|
| 497 |
|
|
} else
|
| 498 |
|
|
dev->rx_netdev[idx] = p;
|
| 499 |
|
|
lp->dialstate = 0;
|
| 500 |
|
|
isdn_timer_ctrl(ISDN_TIMER_NETHANGUP, 1);
|
| 501 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_CISCOHDLCK)
|
| 502 |
|
|
isdn_net_ciscohdlck_connected(lp);
|
| 503 |
|
|
if (lp->p_encap != ISDN_NET_ENCAP_SYNCPPP) {
|
| 504 |
|
|
if (lp->master) { /* is lp a slave? */
|
| 505 |
|
|
isdn_net_dev *nd = ((isdn_net_local *)lp->master->priv)->netdev;
|
| 506 |
|
|
isdn_net_add_to_bundle(nd, lp);
|
| 507 |
|
|
}
|
| 508 |
|
|
}
|
| 509 |
|
|
printk(KERN_INFO "isdn_net: %s connected\n", lp->name);
|
| 510 |
|
|
/* If first Chargeinfo comes before B-Channel connect,
|
| 511 |
|
|
* we correct the timestamp here.
|
| 512 |
|
|
*/
|
| 513 |
|
|
lp->chargetime = jiffies;
|
| 514 |
|
|
|
| 515 |
|
|
/* reset dial-timeout */
|
| 516 |
|
|
lp->dialstarted = 0;
|
| 517 |
|
|
lp->dialwait_timer = 0;
|
| 518 |
|
|
|
| 519 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 520 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP)
|
| 521 |
|
|
isdn_ppp_wakeup_daemon(lp);
|
| 522 |
|
|
#endif
|
| 523 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 524 |
|
|
/* try if there are generic concap receiver routines */
|
| 525 |
|
|
if( pops )
|
| 526 |
|
|
if( pops->connect_ind)
|
| 527 |
|
|
pops->connect_ind(cprot);
|
| 528 |
|
|
#endif /* CONFIG_ISDN_X25 */
|
| 529 |
|
|
/* ppp needs to do negotiations first */
|
| 530 |
|
|
if (lp->p_encap != ISDN_NET_ENCAP_SYNCPPP)
|
| 531 |
|
|
isdn_net_device_wake_queue(lp);
|
| 532 |
|
|
return 1;
|
| 533 |
|
|
}
|
| 534 |
|
|
break;
|
| 535 |
|
|
case ISDN_STAT_NODCH:
|
| 536 |
|
|
/* No D-Channel avail. */
|
| 537 |
|
|
if (lp->dialstate == 4) {
|
| 538 |
|
|
lp->dialstate--;
|
| 539 |
|
|
return 1;
|
| 540 |
|
|
}
|
| 541 |
|
|
break;
|
| 542 |
|
|
case ISDN_STAT_CINF:
|
| 543 |
|
|
/* Charge-info from TelCo. Calculate interval between
|
| 544 |
|
|
* charge-infos and set timestamp for last info for
|
| 545 |
|
|
* usage by isdn_net_autohup()
|
| 546 |
|
|
*/
|
| 547 |
|
|
lp->charge++;
|
| 548 |
|
|
if (lp->hupflags & ISDN_HAVECHARGE) {
|
| 549 |
|
|
lp->hupflags &= ~ISDN_WAITCHARGE;
|
| 550 |
|
|
lp->chargeint = jiffies - lp->chargetime - (2 * HZ);
|
| 551 |
|
|
}
|
| 552 |
|
|
if (lp->hupflags & ISDN_WAITCHARGE)
|
| 553 |
|
|
lp->hupflags |= ISDN_HAVECHARGE;
|
| 554 |
|
|
lp->chargetime = jiffies;
|
| 555 |
|
|
printk(KERN_DEBUG "isdn_net: Got CINF chargetime of %s now %lu\n",
|
| 556 |
|
|
lp->name, lp->chargetime);
|
| 557 |
|
|
return 1;
|
| 558 |
|
|
}
|
| 559 |
|
|
}
|
| 560 |
|
|
return 0;
|
| 561 |
|
|
}
|
| 562 |
|
|
|
| 563 |
|
|
/*
|
| 564 |
|
|
* Perform dialout for net-interfaces and timeout-handling for
|
| 565 |
|
|
* D-Channel-up and B-Channel-up Messages.
|
| 566 |
|
|
* This function is initially called from within isdn_net_start_xmit() or
|
| 567 |
|
|
* or isdn_net_find_icall() after initializing the dialstate for an
|
| 568 |
|
|
* interface. If further calls are needed, the function schedules itself
|
| 569 |
|
|
* for a timer-callback via isdn_timer_function().
|
| 570 |
|
|
* The dialstate is also affected by incoming status-messages from
|
| 571 |
|
|
* the ISDN-Channel which are handled in isdn_net_stat_callback() above.
|
| 572 |
|
|
*/
|
| 573 |
|
|
void
|
| 574 |
|
|
isdn_net_dial(void)
|
| 575 |
|
|
{
|
| 576 |
|
|
isdn_net_dev *p = dev->netdev;
|
| 577 |
|
|
int anymore = 0;
|
| 578 |
|
|
int i;
|
| 579 |
|
|
unsigned long flags;
|
| 580 |
|
|
isdn_ctrl cmd;
|
| 581 |
|
|
u_char *phone_number;
|
| 582 |
|
|
|
| 583 |
|
|
while (p) {
|
| 584 |
|
|
isdn_net_local *lp = p->local;
|
| 585 |
|
|
|
| 586 |
|
|
#ifdef ISDN_DEBUG_NET_DIAL
|
| 587 |
|
|
if (lp->dialstate)
|
| 588 |
|
|
printk(KERN_DEBUG "%s: dialstate=%d\n", lp->name, lp->dialstate);
|
| 589 |
|
|
#endif
|
| 590 |
|
|
switch (lp->dialstate) {
|
| 591 |
|
|
case 0:
|
| 592 |
|
|
/* Nothing to do for this interface */
|
| 593 |
|
|
break;
|
| 594 |
|
|
case 1:
|
| 595 |
|
|
/* Initiate dialout. Set phone-number-pointer to first number
|
| 596 |
|
|
* of interface.
|
| 597 |
|
|
*/
|
| 598 |
|
|
save_flags(flags);
|
| 599 |
|
|
cli();
|
| 600 |
|
|
lp->dial = lp->phone[1];
|
| 601 |
|
|
restore_flags(flags);
|
| 602 |
|
|
if (!lp->dial) {
|
| 603 |
|
|
printk(KERN_WARNING "%s: phone number deleted?\n",
|
| 604 |
|
|
lp->name);
|
| 605 |
|
|
isdn_net_hangup(&p->dev);
|
| 606 |
|
|
break;
|
| 607 |
|
|
}
|
| 608 |
|
|
anymore = 1;
|
| 609 |
|
|
|
| 610 |
|
|
if(lp->dialtimeout > 0)
|
| 611 |
|
|
if(lp->dialstarted == 0 || time_after(jiffies, lp->dialstarted + lp->dialtimeout + lp->dialwait)) {
|
| 612 |
|
|
lp->dialstarted = jiffies;
|
| 613 |
|
|
lp->dialwait_timer = 0;
|
| 614 |
|
|
}
|
| 615 |
|
|
|
| 616 |
|
|
lp->dialstate++;
|
| 617 |
|
|
/* Fall through */
|
| 618 |
|
|
case 2:
|
| 619 |
|
|
/* Prepare dialing. Clear EAZ, then set EAZ. */
|
| 620 |
|
|
cmd.driver = lp->isdn_device;
|
| 621 |
|
|
cmd.arg = lp->isdn_channel;
|
| 622 |
|
|
cmd.command = ISDN_CMD_CLREAZ;
|
| 623 |
|
|
isdn_command(&cmd);
|
| 624 |
|
|
sprintf(cmd.parm.num, "%s", isdn_map_eaz2msn(lp->msn, cmd.driver));
|
| 625 |
|
|
cmd.command = ISDN_CMD_SETEAZ;
|
| 626 |
|
|
isdn_command(&cmd);
|
| 627 |
|
|
lp->dialretry = 0;
|
| 628 |
|
|
anymore = 1;
|
| 629 |
|
|
lp->dialstate++;
|
| 630 |
|
|
/* Fall through */
|
| 631 |
|
|
case 3:
|
| 632 |
|
|
/* Setup interface, dial current phone-number, switch to next number.
|
| 633 |
|
|
* If list of phone-numbers is exhausted, increment
|
| 634 |
|
|
* retry-counter.
|
| 635 |
|
|
*/
|
| 636 |
|
|
if(dev->global_flags & ISDN_GLOBAL_STOPPED || (ISDN_NET_DIALMODE(*lp) == ISDN_NET_DM_OFF)) {
|
| 637 |
|
|
char *s;
|
| 638 |
|
|
if (dev->global_flags & ISDN_GLOBAL_STOPPED)
|
| 639 |
|
|
s = "dial suppressed: isdn system stopped";
|
| 640 |
|
|
else
|
| 641 |
|
|
s = "dial suppressed: dialmode `off'";
|
| 642 |
|
|
isdn_net_unreachable(&p->dev, 0, s);
|
| 643 |
|
|
isdn_net_hangup(&p->dev);
|
| 644 |
|
|
break;
|
| 645 |
|
|
}
|
| 646 |
|
|
cmd.driver = lp->isdn_device;
|
| 647 |
|
|
cmd.command = ISDN_CMD_SETL2;
|
| 648 |
|
|
cmd.arg = lp->isdn_channel + (lp->l2_proto << 8);
|
| 649 |
|
|
isdn_command(&cmd);
|
| 650 |
|
|
cmd.driver = lp->isdn_device;
|
| 651 |
|
|
cmd.command = ISDN_CMD_SETL3;
|
| 652 |
|
|
cmd.arg = lp->isdn_channel + (lp->l3_proto << 8);
|
| 653 |
|
|
isdn_command(&cmd);
|
| 654 |
|
|
cmd.driver = lp->isdn_device;
|
| 655 |
|
|
cmd.arg = lp->isdn_channel;
|
| 656 |
|
|
save_flags(flags);
|
| 657 |
|
|
cli();
|
| 658 |
|
|
if (!lp->dial) {
|
| 659 |
|
|
restore_flags(flags);
|
| 660 |
|
|
printk(KERN_WARNING "%s: phone number deleted?\n",
|
| 661 |
|
|
lp->name);
|
| 662 |
|
|
isdn_net_hangup(&p->dev);
|
| 663 |
|
|
break;
|
| 664 |
|
|
}
|
| 665 |
|
|
if (!strncmp(lp->dial->num, "LEASED", strlen("LEASED"))) {
|
| 666 |
|
|
restore_flags(flags);
|
| 667 |
|
|
lp->dialstate = 4;
|
| 668 |
|
|
printk(KERN_INFO "%s: Open leased line ...\n", lp->name);
|
| 669 |
|
|
} else {
|
| 670 |
|
|
if(lp->dialtimeout > 0)
|
| 671 |
|
|
if (time_after(jiffies, lp->dialstarted + lp->dialtimeout)) {
|
| 672 |
|
|
restore_flags(flags);
|
| 673 |
|
|
lp->dialwait_timer = jiffies + lp->dialwait;
|
| 674 |
|
|
lp->dialstarted = 0;
|
| 675 |
|
|
isdn_net_unreachable(&p->dev, 0, "dial: timed out");
|
| 676 |
|
|
isdn_net_hangup(&p->dev);
|
| 677 |
|
|
break;
|
| 678 |
|
|
}
|
| 679 |
|
|
|
| 680 |
|
|
cmd.driver = lp->isdn_device;
|
| 681 |
|
|
cmd.command = ISDN_CMD_DIAL;
|
| 682 |
|
|
cmd.parm.setup.si2 = 0;
|
| 683 |
|
|
|
| 684 |
|
|
/* check for DOV */
|
| 685 |
|
|
phone_number = lp->dial->num;
|
| 686 |
|
|
if ((*phone_number == 'v') ||
|
| 687 |
|
|
(*phone_number == 'V')) { /* DOV call */
|
| 688 |
|
|
cmd.parm.setup.si1 = 1;
|
| 689 |
|
|
} else { /* DATA call */
|
| 690 |
|
|
cmd.parm.setup.si1 = 7;
|
| 691 |
|
|
}
|
| 692 |
|
|
|
| 693 |
|
|
strcpy(cmd.parm.setup.phone, phone_number);
|
| 694 |
|
|
/*
|
| 695 |
|
|
* Switch to next number or back to start if at end of list.
|
| 696 |
|
|
*/
|
| 697 |
|
|
if (!(lp->dial = (isdn_net_phone *) lp->dial->next)) {
|
| 698 |
|
|
lp->dial = lp->phone[1];
|
| 699 |
|
|
lp->dialretry++;
|
| 700 |
|
|
|
| 701 |
|
|
if (lp->dialretry > lp->dialmax) {
|
| 702 |
|
|
restore_flags(flags);
|
| 703 |
|
|
if (lp->dialtimeout == 0) {
|
| 704 |
|
|
lp->dialwait_timer = jiffies + lp->dialwait;
|
| 705 |
|
|
lp->dialstarted = 0;
|
| 706 |
|
|
isdn_net_unreachable(&p->dev, 0, "dial: tried all numbers dialmax times");
|
| 707 |
|
|
}
|
| 708 |
|
|
isdn_net_hangup(&p->dev);
|
| 709 |
|
|
break;
|
| 710 |
|
|
}
|
| 711 |
|
|
}
|
| 712 |
|
|
restore_flags(flags);
|
| 713 |
|
|
sprintf(cmd.parm.setup.eazmsn, "%s",
|
| 714 |
|
|
isdn_map_eaz2msn(lp->msn, cmd.driver));
|
| 715 |
|
|
i = isdn_dc2minor(lp->isdn_device, lp->isdn_channel);
|
| 716 |
|
|
if (i >= 0) {
|
| 717 |
|
|
strcpy(dev->num[i], cmd.parm.setup.phone);
|
| 718 |
|
|
dev->usage[i] |= ISDN_USAGE_OUTGOING;
|
| 719 |
|
|
isdn_info_update();
|
| 720 |
|
|
}
|
| 721 |
|
|
printk(KERN_INFO "%s: dialing %d %s... %s\n", lp->name,
|
| 722 |
|
|
lp->dialretry, cmd.parm.setup.phone,
|
| 723 |
|
|
(cmd.parm.setup.si1 == 1) ? "DOV" : "");
|
| 724 |
|
|
lp->dtimer = 0;
|
| 725 |
|
|
#ifdef ISDN_DEBUG_NET_DIAL
|
| 726 |
|
|
printk(KERN_DEBUG "dial: d=%d c=%d\n", lp->isdn_device,
|
| 727 |
|
|
lp->isdn_channel);
|
| 728 |
|
|
#endif
|
| 729 |
|
|
isdn_command(&cmd);
|
| 730 |
|
|
}
|
| 731 |
|
|
lp->huptimer = 0;
|
| 732 |
|
|
lp->outgoing = 1;
|
| 733 |
|
|
if (lp->chargeint) {
|
| 734 |
|
|
lp->hupflags |= ISDN_HAVECHARGE;
|
| 735 |
|
|
lp->hupflags &= ~ISDN_WAITCHARGE;
|
| 736 |
|
|
} else {
|
| 737 |
|
|
lp->hupflags |= ISDN_WAITCHARGE;
|
| 738 |
|
|
lp->hupflags &= ~ISDN_HAVECHARGE;
|
| 739 |
|
|
}
|
| 740 |
|
|
anymore = 1;
|
| 741 |
|
|
lp->dialstate =
|
| 742 |
|
|
(lp->cbdelay &&
|
| 743 |
|
|
(lp->flags & ISDN_NET_CBOUT)) ? 12 : 4;
|
| 744 |
|
|
break;
|
| 745 |
|
|
case 4:
|
| 746 |
|
|
/* Wait for D-Channel-connect.
|
| 747 |
|
|
* If timeout, switch back to state 3.
|
| 748 |
|
|
* Dialmax-handling moved to state 3.
|
| 749 |
|
|
*/
|
| 750 |
|
|
if (lp->dtimer++ > ISDN_TIMER_DTIMEOUT10)
|
| 751 |
|
|
lp->dialstate = 3;
|
| 752 |
|
|
anymore = 1;
|
| 753 |
|
|
break;
|
| 754 |
|
|
case 5:
|
| 755 |
|
|
/* Got D-Channel-Connect, send B-Channel-request */
|
| 756 |
|
|
cmd.driver = lp->isdn_device;
|
| 757 |
|
|
cmd.arg = lp->isdn_channel;
|
| 758 |
|
|
cmd.command = ISDN_CMD_ACCEPTB;
|
| 759 |
|
|
anymore = 1;
|
| 760 |
|
|
lp->dtimer = 0;
|
| 761 |
|
|
lp->dialstate++;
|
| 762 |
|
|
isdn_command(&cmd);
|
| 763 |
|
|
break;
|
| 764 |
|
|
case 6:
|
| 765 |
|
|
/* Wait for B- or D-Channel-connect. If timeout,
|
| 766 |
|
|
* switch back to state 3.
|
| 767 |
|
|
*/
|
| 768 |
|
|
#ifdef ISDN_DEBUG_NET_DIAL
|
| 769 |
|
|
printk(KERN_DEBUG "dialtimer2: %d\n", lp->dtimer);
|
| 770 |
|
|
#endif
|
| 771 |
|
|
if (lp->dtimer++ > ISDN_TIMER_DTIMEOUT10)
|
| 772 |
|
|
lp->dialstate = 3;
|
| 773 |
|
|
anymore = 1;
|
| 774 |
|
|
break;
|
| 775 |
|
|
case 7:
|
| 776 |
|
|
/* Got incoming Call, setup L2 and L3 protocols,
|
| 777 |
|
|
* then wait for D-Channel-connect
|
| 778 |
|
|
*/
|
| 779 |
|
|
#ifdef ISDN_DEBUG_NET_DIAL
|
| 780 |
|
|
printk(KERN_DEBUG "dialtimer4: %d\n", lp->dtimer);
|
| 781 |
|
|
#endif
|
| 782 |
|
|
cmd.driver = lp->isdn_device;
|
| 783 |
|
|
cmd.command = ISDN_CMD_SETL2;
|
| 784 |
|
|
cmd.arg = lp->isdn_channel + (lp->l2_proto << 8);
|
| 785 |
|
|
isdn_command(&cmd);
|
| 786 |
|
|
cmd.driver = lp->isdn_device;
|
| 787 |
|
|
cmd.command = ISDN_CMD_SETL3;
|
| 788 |
|
|
cmd.arg = lp->isdn_channel + (lp->l3_proto << 8);
|
| 789 |
|
|
isdn_command(&cmd);
|
| 790 |
|
|
if (lp->dtimer++ > ISDN_TIMER_DTIMEOUT15)
|
| 791 |
|
|
isdn_net_hangup(&p->dev);
|
| 792 |
|
|
else {
|
| 793 |
|
|
anymore = 1;
|
| 794 |
|
|
lp->dialstate++;
|
| 795 |
|
|
}
|
| 796 |
|
|
break;
|
| 797 |
|
|
case 9:
|
| 798 |
|
|
/* Got incoming D-Channel-Connect, send B-Channel-request */
|
| 799 |
|
|
cmd.driver = lp->isdn_device;
|
| 800 |
|
|
cmd.arg = lp->isdn_channel;
|
| 801 |
|
|
cmd.command = ISDN_CMD_ACCEPTB;
|
| 802 |
|
|
isdn_command(&cmd);
|
| 803 |
|
|
anymore = 1;
|
| 804 |
|
|
lp->dtimer = 0;
|
| 805 |
|
|
lp->dialstate++;
|
| 806 |
|
|
break;
|
| 807 |
|
|
case 8:
|
| 808 |
|
|
case 10:
|
| 809 |
|
|
/* Wait for B- or D-channel-connect */
|
| 810 |
|
|
#ifdef ISDN_DEBUG_NET_DIAL
|
| 811 |
|
|
printk(KERN_DEBUG "dialtimer4: %d\n", lp->dtimer);
|
| 812 |
|
|
#endif
|
| 813 |
|
|
if (lp->dtimer++ > ISDN_TIMER_DTIMEOUT10)
|
| 814 |
|
|
isdn_net_hangup(&p->dev);
|
| 815 |
|
|
else
|
| 816 |
|
|
anymore = 1;
|
| 817 |
|
|
break;
|
| 818 |
|
|
case 11:
|
| 819 |
|
|
/* Callback Delay */
|
| 820 |
|
|
if (lp->dtimer++ > lp->cbdelay)
|
| 821 |
|
|
lp->dialstate = 1;
|
| 822 |
|
|
anymore = 1;
|
| 823 |
|
|
break;
|
| 824 |
|
|
case 12:
|
| 825 |
|
|
/* Remote does callback. Hangup after cbdelay, then wait for incoming
|
| 826 |
|
|
* call (in state 4).
|
| 827 |
|
|
*/
|
| 828 |
|
|
if (lp->dtimer++ > lp->cbdelay)
|
| 829 |
|
|
{
|
| 830 |
|
|
printk(KERN_INFO "%s: hangup waiting for callback ...\n", lp->name);
|
| 831 |
|
|
lp->dtimer = 0;
|
| 832 |
|
|
lp->dialstate = 4;
|
| 833 |
|
|
cmd.driver = lp->isdn_device;
|
| 834 |
|
|
cmd.command = ISDN_CMD_HANGUP;
|
| 835 |
|
|
cmd.arg = lp->isdn_channel;
|
| 836 |
|
|
isdn_command(&cmd);
|
| 837 |
|
|
isdn_all_eaz(lp->isdn_device, lp->isdn_channel);
|
| 838 |
|
|
}
|
| 839 |
|
|
anymore = 1;
|
| 840 |
|
|
break;
|
| 841 |
|
|
default:
|
| 842 |
|
|
printk(KERN_WARNING "isdn_net: Illegal dialstate %d for device %s\n",
|
| 843 |
|
|
lp->dialstate, lp->name);
|
| 844 |
|
|
}
|
| 845 |
|
|
p = (isdn_net_dev *) p->next;
|
| 846 |
|
|
}
|
| 847 |
|
|
isdn_timer_ctrl(ISDN_TIMER_NETDIAL, anymore);
|
| 848 |
|
|
}
|
| 849 |
|
|
|
| 850 |
|
|
/*
|
| 851 |
|
|
* Perform hangup for a net-interface.
|
| 852 |
|
|
*/
|
| 853 |
|
|
void
|
| 854 |
|
|
isdn_net_hangup(struct net_device *d)
|
| 855 |
|
|
{
|
| 856 |
|
|
isdn_net_local *lp = (isdn_net_local *) d->priv;
|
| 857 |
|
|
isdn_ctrl cmd;
|
| 858 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 859 |
|
|
struct concap_proto *cprot = lp -> netdev -> cprot;
|
| 860 |
|
|
struct concap_proto_ops *pops = cprot ? cprot -> pops : 0;
|
| 861 |
|
|
#endif
|
| 862 |
|
|
|
| 863 |
|
|
if (lp->flags & ISDN_NET_CONNECTED) {
|
| 864 |
|
|
if (lp->slave != NULL) {
|
| 865 |
|
|
isdn_net_local *slp = (isdn_net_local *)lp->slave->priv;
|
| 866 |
|
|
if (slp->flags & ISDN_NET_CONNECTED) {
|
| 867 |
|
|
printk(KERN_INFO
|
| 868 |
|
|
"isdn_net: hang up slave %s before %s\n",
|
| 869 |
|
|
slp->name, lp->name);
|
| 870 |
|
|
isdn_net_hangup(lp->slave);
|
| 871 |
|
|
}
|
| 872 |
|
|
}
|
| 873 |
|
|
printk(KERN_INFO "isdn_net: local hangup %s\n", lp->name);
|
| 874 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 875 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP)
|
| 876 |
|
|
isdn_ppp_free(lp);
|
| 877 |
|
|
#endif
|
| 878 |
|
|
isdn_net_lp_disconnected(lp);
|
| 879 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 880 |
|
|
/* try if there are generic encap protocol
|
| 881 |
|
|
receiver routines and signal the closure of
|
| 882 |
|
|
the link */
|
| 883 |
|
|
if( pops && pops -> disconn_ind )
|
| 884 |
|
|
pops -> disconn_ind(cprot);
|
| 885 |
|
|
#endif /* CONFIG_ISDN_X25 */
|
| 886 |
|
|
|
| 887 |
|
|
cmd.driver = lp->isdn_device;
|
| 888 |
|
|
cmd.command = ISDN_CMD_HANGUP;
|
| 889 |
|
|
cmd.arg = lp->isdn_channel;
|
| 890 |
|
|
isdn_command(&cmd);
|
| 891 |
|
|
printk(KERN_INFO "%s: Chargesum is %d\n", lp->name, lp->charge);
|
| 892 |
|
|
isdn_all_eaz(lp->isdn_device, lp->isdn_channel);
|
| 893 |
|
|
}
|
| 894 |
|
|
isdn_net_unbind_channel(lp);
|
| 895 |
|
|
}
|
| 896 |
|
|
|
| 897 |
|
|
typedef struct {
|
| 898 |
|
|
unsigned short source;
|
| 899 |
|
|
unsigned short dest;
|
| 900 |
|
|
} ip_ports;
|
| 901 |
|
|
|
| 902 |
|
|
static void
|
| 903 |
|
|
isdn_net_log_skb(struct sk_buff * skb, isdn_net_local * lp)
|
| 904 |
|
|
{
|
| 905 |
|
|
u_char *p = skb->nh.raw; /* hopefully, this was set correctly */
|
| 906 |
|
|
unsigned short proto = ntohs(skb->protocol);
|
| 907 |
|
|
int data_ofs;
|
| 908 |
|
|
ip_ports *ipp;
|
| 909 |
|
|
char addinfo[100];
|
| 910 |
|
|
|
| 911 |
|
|
addinfo[0] = '\0';
|
| 912 |
|
|
/* This check stolen from 2.1.72 dev_queue_xmit_nit() */
|
| 913 |
|
|
if (skb->nh.raw < skb->data || skb->nh.raw >= skb->tail) {
|
| 914 |
|
|
/* fall back to old isdn_net_log_packet method() */
|
| 915 |
|
|
char * buf = skb->data;
|
| 916 |
|
|
|
| 917 |
|
|
printk(KERN_DEBUG "isdn_net: protocol %04x is buggy, dev %s\n", skb->protocol, lp->name);
|
| 918 |
|
|
p = buf;
|
| 919 |
|
|
proto = ETH_P_IP;
|
| 920 |
|
|
switch (lp->p_encap) {
|
| 921 |
|
|
case ISDN_NET_ENCAP_IPTYP:
|
| 922 |
|
|
proto = ntohs(*(unsigned short *) &buf[0]);
|
| 923 |
|
|
p = &buf[2];
|
| 924 |
|
|
break;
|
| 925 |
|
|
case ISDN_NET_ENCAP_ETHER:
|
| 926 |
|
|
proto = ntohs(*(unsigned short *) &buf[12]);
|
| 927 |
|
|
p = &buf[14];
|
| 928 |
|
|
break;
|
| 929 |
|
|
case ISDN_NET_ENCAP_CISCOHDLC:
|
| 930 |
|
|
proto = ntohs(*(unsigned short *) &buf[2]);
|
| 931 |
|
|
p = &buf[4];
|
| 932 |
|
|
break;
|
| 933 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 934 |
|
|
case ISDN_NET_ENCAP_SYNCPPP:
|
| 935 |
|
|
proto = ntohs(skb->protocol);
|
| 936 |
|
|
p = &buf[IPPP_MAX_HEADER];
|
| 937 |
|
|
break;
|
| 938 |
|
|
#endif
|
| 939 |
|
|
}
|
| 940 |
|
|
}
|
| 941 |
|
|
data_ofs = ((p[0] & 15) * 4);
|
| 942 |
|
|
switch (proto) {
|
| 943 |
|
|
case ETH_P_IP:
|
| 944 |
|
|
switch (p[9]) {
|
| 945 |
|
|
case 1:
|
| 946 |
|
|
strcpy(addinfo, " ICMP");
|
| 947 |
|
|
break;
|
| 948 |
|
|
case 2:
|
| 949 |
|
|
strcpy(addinfo, " IGMP");
|
| 950 |
|
|
break;
|
| 951 |
|
|
case 4:
|
| 952 |
|
|
strcpy(addinfo, " IPIP");
|
| 953 |
|
|
break;
|
| 954 |
|
|
case 6:
|
| 955 |
|
|
ipp = (ip_ports *) (&p[data_ofs]);
|
| 956 |
|
|
sprintf(addinfo, " TCP, port: %d -> %d", ntohs(ipp->source),
|
| 957 |
|
|
ntohs(ipp->dest));
|
| 958 |
|
|
break;
|
| 959 |
|
|
case 8:
|
| 960 |
|
|
strcpy(addinfo, " EGP");
|
| 961 |
|
|
break;
|
| 962 |
|
|
case 12:
|
| 963 |
|
|
strcpy(addinfo, " PUP");
|
| 964 |
|
|
break;
|
| 965 |
|
|
case 17:
|
| 966 |
|
|
ipp = (ip_ports *) (&p[data_ofs]);
|
| 967 |
|
|
sprintf(addinfo, " UDP, port: %d -> %d", ntohs(ipp->source),
|
| 968 |
|
|
ntohs(ipp->dest));
|
| 969 |
|
|
break;
|
| 970 |
|
|
case 22:
|
| 971 |
|
|
strcpy(addinfo, " IDP");
|
| 972 |
|
|
break;
|
| 973 |
|
|
}
|
| 974 |
|
|
printk(KERN_INFO
|
| 975 |
|
|
"OPEN: %d.%d.%d.%d -> %d.%d.%d.%d%s\n",
|
| 976 |
|
|
|
| 977 |
|
|
p[12], p[13], p[14], p[15],
|
| 978 |
|
|
p[16], p[17], p[18], p[19],
|
| 979 |
|
|
addinfo);
|
| 980 |
|
|
break;
|
| 981 |
|
|
case ETH_P_ARP:
|
| 982 |
|
|
printk(KERN_INFO
|
| 983 |
|
|
"OPEN: ARP %d.%d.%d.%d -> *.*.*.* ?%d.%d.%d.%d\n",
|
| 984 |
|
|
p[14], p[15], p[16], p[17],
|
| 985 |
|
|
p[24], p[25], p[26], p[27]);
|
| 986 |
|
|
break;
|
| 987 |
|
|
}
|
| 988 |
|
|
}
|
| 989 |
|
|
|
| 990 |
|
|
/*
|
| 991 |
|
|
* this function is used to send supervisory data, i.e. data which was
|
| 992 |
|
|
* not received from the network layer, but e.g. frames from ipppd, CCP
|
| 993 |
|
|
* reset frames etc.
|
| 994 |
|
|
*/
|
| 995 |
|
|
void isdn_net_write_super(isdn_net_local *lp, struct sk_buff *skb)
|
| 996 |
|
|
{
|
| 997 |
|
|
if (in_irq()) {
|
| 998 |
|
|
// we can't grab the lock from irq context,
|
| 999 |
|
|
// so we just queue the packet
|
| 1000 |
|
|
skb_queue_tail(&lp->super_tx_queue, skb);
|
| 1001 |
|
|
queue_task(&lp->tqueue, &tq_immediate);
|
| 1002 |
|
|
mark_bh(IMMEDIATE_BH);
|
| 1003 |
|
|
return;
|
| 1004 |
|
|
}
|
| 1005 |
|
|
|
| 1006 |
|
|
spin_lock_bh(&lp->xmit_lock);
|
| 1007 |
|
|
if (!isdn_net_lp_busy(lp)) {
|
| 1008 |
|
|
isdn_net_writebuf_skb(lp, skb);
|
| 1009 |
|
|
} else {
|
| 1010 |
|
|
skb_queue_tail(&lp->super_tx_queue, skb);
|
| 1011 |
|
|
}
|
| 1012 |
|
|
spin_unlock_bh(&lp->xmit_lock);
|
| 1013 |
|
|
}
|
| 1014 |
|
|
|
| 1015 |
|
|
/*
|
| 1016 |
|
|
* called from tq_immediate
|
| 1017 |
|
|
*/
|
| 1018 |
|
|
static void isdn_net_softint(void *private)
|
| 1019 |
|
|
{
|
| 1020 |
|
|
isdn_net_local *lp = private;
|
| 1021 |
|
|
struct sk_buff *skb;
|
| 1022 |
|
|
|
| 1023 |
|
|
spin_lock_bh(&lp->xmit_lock);
|
| 1024 |
|
|
while (!isdn_net_lp_busy(lp)) {
|
| 1025 |
|
|
skb = skb_dequeue(&lp->super_tx_queue);
|
| 1026 |
|
|
if (!skb)
|
| 1027 |
|
|
break;
|
| 1028 |
|
|
isdn_net_writebuf_skb(lp, skb);
|
| 1029 |
|
|
}
|
| 1030 |
|
|
spin_unlock_bh(&lp->xmit_lock);
|
| 1031 |
|
|
}
|
| 1032 |
|
|
|
| 1033 |
|
|
/*
|
| 1034 |
|
|
* all frames sent from the (net) LL to a HL driver should go via this function
|
| 1035 |
|
|
* it's serialized by the caller holding the lp->xmit_lock spinlock
|
| 1036 |
|
|
*/
|
| 1037 |
|
|
void isdn_net_writebuf_skb(isdn_net_local *lp, struct sk_buff *skb)
|
| 1038 |
|
|
{
|
| 1039 |
|
|
int ret;
|
| 1040 |
|
|
int len = skb->len; /* save len */
|
| 1041 |
|
|
|
| 1042 |
|
|
/* before obtaining the lock the caller should have checked that
|
| 1043 |
|
|
the lp isn't busy */
|
| 1044 |
|
|
if (isdn_net_lp_busy(lp)) {
|
| 1045 |
|
|
printk("isdn BUG at %s:%d!\n", __FILE__, __LINE__);
|
| 1046 |
|
|
goto error;
|
| 1047 |
|
|
}
|
| 1048 |
|
|
|
| 1049 |
|
|
if (!(lp->flags & ISDN_NET_CONNECTED)) {
|
| 1050 |
|
|
printk("isdn BUG at %s:%d!\n", __FILE__, __LINE__);
|
| 1051 |
|
|
goto error;
|
| 1052 |
|
|
}
|
| 1053 |
|
|
ret = isdn_writebuf_skb_stub(lp->isdn_device, lp->isdn_channel, 1, skb);
|
| 1054 |
|
|
if (ret != len) {
|
| 1055 |
|
|
/* we should never get here */
|
| 1056 |
|
|
printk(KERN_WARNING "%s: HL driver queue full\n", lp->name);
|
| 1057 |
|
|
goto error;
|
| 1058 |
|
|
}
|
| 1059 |
|
|
|
| 1060 |
|
|
lp->transcount += len;
|
| 1061 |
|
|
isdn_net_inc_frame_cnt(lp);
|
| 1062 |
|
|
return;
|
| 1063 |
|
|
|
| 1064 |
|
|
error:
|
| 1065 |
|
|
dev_kfree_skb(skb);
|
| 1066 |
|
|
lp->stats.tx_errors++;
|
| 1067 |
|
|
|
| 1068 |
|
|
}
|
| 1069 |
|
|
|
| 1070 |
|
|
|
| 1071 |
|
|
/*
|
| 1072 |
|
|
* Helper function for isdn_net_start_xmit.
|
| 1073 |
|
|
* When called, the connection is already established.
|
| 1074 |
|
|
* Based on cps-calculation, check if device is overloaded.
|
| 1075 |
|
|
* If so, and if a slave exists, trigger dialing for it.
|
| 1076 |
|
|
* If any slave is online, deliver packets using a simple round robin
|
| 1077 |
|
|
* scheme.
|
| 1078 |
|
|
*
|
| 1079 |
|
|
* Return: 0 on success, !0 on failure.
|
| 1080 |
|
|
*/
|
| 1081 |
|
|
|
| 1082 |
|
|
static int
|
| 1083 |
|
|
isdn_net_xmit(struct net_device *ndev, struct sk_buff *skb)
|
| 1084 |
|
|
{
|
| 1085 |
|
|
isdn_net_dev *nd;
|
| 1086 |
|
|
isdn_net_local *slp;
|
| 1087 |
|
|
isdn_net_local *lp = (isdn_net_local *) ndev->priv;
|
| 1088 |
|
|
int retv = 0;
|
| 1089 |
|
|
|
| 1090 |
|
|
if (((isdn_net_local *) (ndev->priv))->master) {
|
| 1091 |
|
|
printk("isdn BUG at %s:%d!\n", __FILE__, __LINE__);
|
| 1092 |
|
|
dev_kfree_skb(skb);
|
| 1093 |
|
|
return 0;
|
| 1094 |
|
|
}
|
| 1095 |
|
|
|
| 1096 |
|
|
/* For the other encaps the header has already been built */
|
| 1097 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1098 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP) {
|
| 1099 |
|
|
return isdn_ppp_xmit(skb, ndev);
|
| 1100 |
|
|
}
|
| 1101 |
|
|
#endif
|
| 1102 |
|
|
nd = ((isdn_net_local *) ndev->priv)->netdev;
|
| 1103 |
|
|
lp = isdn_net_get_locked_lp(nd);
|
| 1104 |
|
|
if (!lp) {
|
| 1105 |
|
|
printk(KERN_WARNING "%s: all channels busy - requeuing!\n", ndev->name);
|
| 1106 |
|
|
return 1;
|
| 1107 |
|
|
}
|
| 1108 |
|
|
/* we have our lp locked from now on */
|
| 1109 |
|
|
|
| 1110 |
|
|
/* Reset hangup-timeout */
|
| 1111 |
|
|
lp->huptimer = 0; // FIXME?
|
| 1112 |
|
|
isdn_net_writebuf_skb(lp, skb);
|
| 1113 |
|
|
spin_unlock_bh(&lp->xmit_lock);
|
| 1114 |
|
|
|
| 1115 |
|
|
/* the following stuff is here for backwards compatibility.
|
| 1116 |
|
|
* in future, start-up and hangup of slaves (based on current load)
|
| 1117 |
|
|
* should move to userspace and get based on an overall cps
|
| 1118 |
|
|
* calculation
|
| 1119 |
|
|
*/
|
| 1120 |
|
|
if (lp->cps > lp->triggercps) {
|
| 1121 |
|
|
if (lp->slave) {
|
| 1122 |
|
|
if (!lp->sqfull) {
|
| 1123 |
|
|
/* First time overload: set timestamp only */
|
| 1124 |
|
|
lp->sqfull = 1;
|
| 1125 |
|
|
lp->sqfull_stamp = jiffies;
|
| 1126 |
|
|
} else {
|
| 1127 |
|
|
/* subsequent overload: if slavedelay exceeded, start dialing */
|
| 1128 |
|
|
if (time_after(jiffies, lp->sqfull_stamp + lp->slavedelay)) {
|
| 1129 |
|
|
slp = lp->slave->priv;
|
| 1130 |
|
|
if (!(slp->flags & ISDN_NET_CONNECTED)) {
|
| 1131 |
|
|
isdn_net_force_dial_lp((isdn_net_local *) lp->slave->priv);
|
| 1132 |
|
|
}
|
| 1133 |
|
|
}
|
| 1134 |
|
|
}
|
| 1135 |
|
|
}
|
| 1136 |
|
|
} else {
|
| 1137 |
|
|
if (lp->sqfull && time_after(jiffies, lp->sqfull_stamp + lp->slavedelay + (10 * HZ))) {
|
| 1138 |
|
|
lp->sqfull = 0;
|
| 1139 |
|
|
}
|
| 1140 |
|
|
/* this is a hack to allow auto-hangup for slaves on moderate loads */
|
| 1141 |
|
|
nd->queue = nd->local;
|
| 1142 |
|
|
}
|
| 1143 |
|
|
|
| 1144 |
|
|
return retv;
|
| 1145 |
|
|
|
| 1146 |
|
|
}
|
| 1147 |
|
|
|
| 1148 |
|
|
static void
|
| 1149 |
|
|
isdn_net_adjust_hdr(struct sk_buff *skb, struct net_device *dev)
|
| 1150 |
|
|
{
|
| 1151 |
|
|
isdn_net_local *lp = (isdn_net_local *) dev->priv;
|
| 1152 |
|
|
if (!skb)
|
| 1153 |
|
|
return;
|
| 1154 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_ETHER) {
|
| 1155 |
|
|
int pullsize = (ulong)skb->nh.raw - (ulong)skb->data - ETH_HLEN;
|
| 1156 |
|
|
if (pullsize > 0) {
|
| 1157 |
|
|
printk(KERN_DEBUG "isdn_net: Pull junk %d\n", pullsize);
|
| 1158 |
|
|
skb_pull(skb, pullsize);
|
| 1159 |
|
|
}
|
| 1160 |
|
|
}
|
| 1161 |
|
|
}
|
| 1162 |
|
|
|
| 1163 |
|
|
|
| 1164 |
|
|
void isdn_net_tx_timeout(struct net_device * ndev)
|
| 1165 |
|
|
{
|
| 1166 |
|
|
isdn_net_local *lp = (isdn_net_local *) ndev->priv;
|
| 1167 |
|
|
|
| 1168 |
|
|
printk(KERN_WARNING "isdn_tx_timeout dev %s dialstate %d\n", ndev->name, lp->dialstate);
|
| 1169 |
|
|
if (!lp->dialstate){
|
| 1170 |
|
|
lp->stats.tx_errors++;
|
| 1171 |
|
|
/*
|
| 1172 |
|
|
* There is a certain probability that this currently
|
| 1173 |
|
|
* works at all because if we always wake up the interface,
|
| 1174 |
|
|
* then upper layer will try to send the next packet
|
| 1175 |
|
|
* immediately. And then, the old clean_up logic in the
|
| 1176 |
|
|
* driver will hopefully continue to work as it used to do.
|
| 1177 |
|
|
*
|
| 1178 |
|
|
* This is rather primitive right know, we better should
|
| 1179 |
|
|
* clean internal queues here, in particular for multilink and
|
| 1180 |
|
|
* ppp, and reset HL driver's channel, too. --HE
|
| 1181 |
|
|
*
|
| 1182 |
|
|
* actually, this may not matter at all, because ISDN hardware
|
| 1183 |
|
|
* should not see transmitter hangs at all IMO
|
| 1184 |
|
|
* changed KERN_DEBUG to KERN_WARNING to find out if this is
|
| 1185 |
|
|
* ever called --KG
|
| 1186 |
|
|
*/
|
| 1187 |
|
|
}
|
| 1188 |
|
|
ndev->trans_start = jiffies;
|
| 1189 |
|
|
netif_wake_queue(ndev);
|
| 1190 |
|
|
}
|
| 1191 |
|
|
|
| 1192 |
|
|
/*
|
| 1193 |
|
|
* Try sending a packet.
|
| 1194 |
|
|
* If this interface isn't connected to a ISDN-Channel, find a free channel,
|
| 1195 |
|
|
* and start dialing.
|
| 1196 |
|
|
*/
|
| 1197 |
|
|
static int
|
| 1198 |
|
|
isdn_net_start_xmit(struct sk_buff *skb, struct net_device *ndev)
|
| 1199 |
|
|
{
|
| 1200 |
|
|
isdn_net_local *lp = (isdn_net_local *) ndev->priv;
|
| 1201 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1202 |
|
|
struct concap_proto * cprot = lp -> netdev -> cprot;
|
| 1203 |
|
|
#endif
|
| 1204 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1205 |
|
|
/* At this point hard_start_xmit() passes control to the encapsulation
|
| 1206 |
|
|
protocol (if present).
|
| 1207 |
|
|
For X.25 auto-dialing is completly bypassed because:
|
| 1208 |
|
|
- It does not conform with the semantics of a reliable datalink
|
| 1209 |
|
|
service as needed by X.25 PLP.
|
| 1210 |
|
|
- I don't want that the interface starts dialing when the network layer
|
| 1211 |
|
|
sends a message which requests to disconnect the lapb link (or if it
|
| 1212 |
|
|
sends any other message not resulting in data transmission).
|
| 1213 |
|
|
Instead, dialing will be initiated by the encapsulation protocol entity
|
| 1214 |
|
|
when a dl_establish request is received from the upper layer.
|
| 1215 |
|
|
*/
|
| 1216 |
|
|
if( cprot ) {
|
| 1217 |
|
|
int ret = cprot -> pops -> encap_and_xmit ( cprot , skb);
|
| 1218 |
|
|
if(ret) netif_stop_queue(ndev);
|
| 1219 |
|
|
return ret;
|
| 1220 |
|
|
} else
|
| 1221 |
|
|
#endif
|
| 1222 |
|
|
/* auto-dialing xmit function */
|
| 1223 |
|
|
{
|
| 1224 |
|
|
#ifdef ISDN_DEBUG_NET_DUMP
|
| 1225 |
|
|
u_char *buf;
|
| 1226 |
|
|
#endif
|
| 1227 |
|
|
isdn_net_adjust_hdr(skb, ndev);
|
| 1228 |
|
|
#ifdef ISDN_DEBUG_NET_DUMP
|
| 1229 |
|
|
buf = skb->data;
|
| 1230 |
|
|
isdn_dumppkt("S:", buf, skb->len, 40);
|
| 1231 |
|
|
#endif
|
| 1232 |
|
|
|
| 1233 |
|
|
if (!(lp->flags & ISDN_NET_CONNECTED)) {
|
| 1234 |
|
|
int chi;
|
| 1235 |
|
|
/* only do autodial if allowed by config */
|
| 1236 |
|
|
if (!(ISDN_NET_DIALMODE(*lp) == ISDN_NET_DM_AUTO)) {
|
| 1237 |
|
|
isdn_net_unreachable(ndev, skb, "dial rejected: interface not in dialmode `auto'");
|
| 1238 |
|
|
dev_kfree_skb(skb);
|
| 1239 |
|
|
return 0;
|
| 1240 |
|
|
}
|
| 1241 |
|
|
if (lp->phone[1]) {
|
| 1242 |
|
|
ulong flags;
|
| 1243 |
|
|
save_flags(flags);
|
| 1244 |
|
|
cli();
|
| 1245 |
|
|
|
| 1246 |
|
|
if(lp->dialwait_timer <= 0)
|
| 1247 |
|
|
if(lp->dialstarted > 0 && lp->dialtimeout > 0 && time_before(jiffies, lp->dialstarted + lp->dialtimeout + lp->dialwait))
|
| 1248 |
|
|
lp->dialwait_timer = lp->dialstarted + lp->dialtimeout + lp->dialwait;
|
| 1249 |
|
|
|
| 1250 |
|
|
if(lp->dialwait_timer > 0) {
|
| 1251 |
|
|
if(time_before(jiffies, lp->dialwait_timer)) {
|
| 1252 |
|
|
isdn_net_unreachable(ndev, skb, "dial rejected: retry-time not reached");
|
| 1253 |
|
|
dev_kfree_skb(skb);
|
| 1254 |
|
|
restore_flags(flags);
|
| 1255 |
|
|
return 0;
|
| 1256 |
|
|
} else
|
| 1257 |
|
|
lp->dialwait_timer = 0;
|
| 1258 |
|
|
}
|
| 1259 |
|
|
/* Grab a free ISDN-Channel */
|
| 1260 |
|
|
if (((chi =
|
| 1261 |
|
|
isdn_get_free_channel(
|
| 1262 |
|
|
ISDN_USAGE_NET,
|
| 1263 |
|
|
lp->l2_proto,
|
| 1264 |
|
|
lp->l3_proto,
|
| 1265 |
|
|
lp->pre_device,
|
| 1266 |
|
|
lp->pre_channel,
|
| 1267 |
|
|
lp->msn)
|
| 1268 |
|
|
) < 0) &&
|
| 1269 |
|
|
((chi =
|
| 1270 |
|
|
isdn_get_free_channel(
|
| 1271 |
|
|
ISDN_USAGE_NET,
|
| 1272 |
|
|
lp->l2_proto,
|
| 1273 |
|
|
lp->l3_proto,
|
| 1274 |
|
|
lp->pre_device,
|
| 1275 |
|
|
lp->pre_channel^1,
|
| 1276 |
|
|
lp->msn)
|
| 1277 |
|
|
) < 0)) {
|
| 1278 |
|
|
restore_flags(flags);
|
| 1279 |
|
|
isdn_net_unreachable(ndev, skb,
|
| 1280 |
|
|
"No channel");
|
| 1281 |
|
|
dev_kfree_skb(skb);
|
| 1282 |
|
|
return 0;
|
| 1283 |
|
|
}
|
| 1284 |
|
|
/* Log packet, which triggered dialing */
|
| 1285 |
|
|
if (dev->net_verbose)
|
| 1286 |
|
|
isdn_net_log_skb(skb, lp);
|
| 1287 |
|
|
lp->dialstate = 1;
|
| 1288 |
|
|
/* Connect interface with channel */
|
| 1289 |
|
|
isdn_net_bind_channel(lp, chi);
|
| 1290 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1291 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP) {
|
| 1292 |
|
|
/* no 'first_skb' handling for syncPPP */
|
| 1293 |
|
|
if (isdn_ppp_bind(lp) < 0) {
|
| 1294 |
|
|
dev_kfree_skb(skb);
|
| 1295 |
|
|
isdn_net_unbind_channel(lp);
|
| 1296 |
|
|
restore_flags(flags);
|
| 1297 |
|
|
return 0; /* STN (skb to nirvana) ;) */
|
| 1298 |
|
|
}
|
| 1299 |
|
|
#ifdef CONFIG_IPPP_FILTER
|
| 1300 |
|
|
if (isdn_ppp_autodial_filter(skb, lp)) {
|
| 1301 |
|
|
isdn_ppp_free(lp);
|
| 1302 |
|
|
isdn_net_unbind_channel(lp);
|
| 1303 |
|
|
restore_flags(flags);
|
| 1304 |
|
|
isdn_net_unreachable(ndev, skb, "dial rejected: packet filtered");
|
| 1305 |
|
|
dev_kfree_skb(skb);
|
| 1306 |
|
|
return 0;
|
| 1307 |
|
|
}
|
| 1308 |
|
|
#endif
|
| 1309 |
|
|
restore_flags(flags);
|
| 1310 |
|
|
isdn_net_dial(); /* Initiate dialing */
|
| 1311 |
|
|
netif_stop_queue(ndev);
|
| 1312 |
|
|
return 1; /* let upper layer requeue skb packet */
|
| 1313 |
|
|
}
|
| 1314 |
|
|
#endif
|
| 1315 |
|
|
/* Initiate dialing */
|
| 1316 |
|
|
restore_flags(flags);
|
| 1317 |
|
|
isdn_net_dial();
|
| 1318 |
|
|
isdn_net_device_stop_queue(lp);
|
| 1319 |
|
|
return 1;
|
| 1320 |
|
|
} else {
|
| 1321 |
|
|
isdn_net_unreachable(ndev, skb,
|
| 1322 |
|
|
"No phone number");
|
| 1323 |
|
|
dev_kfree_skb(skb);
|
| 1324 |
|
|
return 0;
|
| 1325 |
|
|
}
|
| 1326 |
|
|
} else {
|
| 1327 |
|
|
/* Device is connected to an ISDN channel */
|
| 1328 |
|
|
ndev->trans_start = jiffies;
|
| 1329 |
|
|
if (!lp->dialstate) {
|
| 1330 |
|
|
/* ISDN connection is established, try sending */
|
| 1331 |
|
|
int ret;
|
| 1332 |
|
|
ret = (isdn_net_xmit(ndev, skb));
|
| 1333 |
|
|
if(ret) netif_stop_queue(ndev);
|
| 1334 |
|
|
return ret;
|
| 1335 |
|
|
} else
|
| 1336 |
|
|
netif_stop_queue(ndev);
|
| 1337 |
|
|
}
|
| 1338 |
|
|
}
|
| 1339 |
|
|
return 1;
|
| 1340 |
|
|
}
|
| 1341 |
|
|
|
| 1342 |
|
|
/*
|
| 1343 |
|
|
* Shutdown a net-interface.
|
| 1344 |
|
|
*/
|
| 1345 |
|
|
static int
|
| 1346 |
|
|
isdn_net_close(struct net_device *dev)
|
| 1347 |
|
|
{
|
| 1348 |
|
|
struct net_device *p;
|
| 1349 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1350 |
|
|
struct concap_proto * cprot =
|
| 1351 |
|
|
( (isdn_net_local *) dev->priv ) -> netdev -> cprot;
|
| 1352 |
|
|
/* printk(KERN_DEBUG "isdn_net_close %s\n" , dev-> name ); */
|
| 1353 |
|
|
#endif
|
| 1354 |
|
|
|
| 1355 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1356 |
|
|
if( cprot && cprot -> pops ) cprot -> pops -> close( cprot );
|
| 1357 |
|
|
#endif
|
| 1358 |
|
|
netif_stop_queue(dev);
|
| 1359 |
|
|
if ((p = (((isdn_net_local *) dev->priv)->slave))) {
|
| 1360 |
|
|
/* If this interface has slaves, stop them also */
|
| 1361 |
|
|
while (p) {
|
| 1362 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1363 |
|
|
cprot = ( (isdn_net_local *) p->priv )
|
| 1364 |
|
|
-> netdev -> cprot;
|
| 1365 |
|
|
if( cprot && cprot -> pops )
|
| 1366 |
|
|
cprot -> pops -> close( cprot );
|
| 1367 |
|
|
#endif
|
| 1368 |
|
|
isdn_net_hangup(p);
|
| 1369 |
|
|
p = (((isdn_net_local *) p->priv)->slave);
|
| 1370 |
|
|
}
|
| 1371 |
|
|
}
|
| 1372 |
|
|
isdn_net_hangup(dev);
|
| 1373 |
|
|
isdn_MOD_DEC_USE_COUNT();
|
| 1374 |
|
|
return 0;
|
| 1375 |
|
|
}
|
| 1376 |
|
|
|
| 1377 |
|
|
/*
|
| 1378 |
|
|
* Get statistics
|
| 1379 |
|
|
*/
|
| 1380 |
|
|
static struct net_device_stats *
|
| 1381 |
|
|
isdn_net_get_stats(struct net_device *dev)
|
| 1382 |
|
|
{
|
| 1383 |
|
|
isdn_net_local *lp = (isdn_net_local *) dev->priv;
|
| 1384 |
|
|
return &lp->stats;
|
| 1385 |
|
|
}
|
| 1386 |
|
|
|
| 1387 |
|
|
/* This is simply a copy from std. eth.c EXCEPT we pull ETH_HLEN
|
| 1388 |
|
|
* instead of dev->hard_header_len off. This is done because the
|
| 1389 |
|
|
* lowlevel-driver has already pulled off its stuff when we get
|
| 1390 |
|
|
* here and this routine only gets called with p_encap == ETHER.
|
| 1391 |
|
|
* Determine the packet's protocol ID. The rule here is that we
|
| 1392 |
|
|
* assume 802.3 if the type field is short enough to be a length.
|
| 1393 |
|
|
* This is normal practice and works for any 'now in use' protocol.
|
| 1394 |
|
|
*/
|
| 1395 |
|
|
|
| 1396 |
|
|
static unsigned short
|
| 1397 |
|
|
isdn_net_type_trans(struct sk_buff *skb, struct net_device *dev)
|
| 1398 |
|
|
{
|
| 1399 |
|
|
struct ethhdr *eth;
|
| 1400 |
|
|
unsigned char *rawp;
|
| 1401 |
|
|
|
| 1402 |
|
|
skb->mac.raw = skb->data;
|
| 1403 |
|
|
skb_pull(skb, ETH_HLEN);
|
| 1404 |
|
|
eth = skb->mac.ethernet;
|
| 1405 |
|
|
|
| 1406 |
|
|
if (*eth->h_dest & 1) {
|
| 1407 |
|
|
if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
|
| 1408 |
|
|
skb->pkt_type = PACKET_BROADCAST;
|
| 1409 |
|
|
else
|
| 1410 |
|
|
skb->pkt_type = PACKET_MULTICAST;
|
| 1411 |
|
|
}
|
| 1412 |
|
|
/*
|
| 1413 |
|
|
* This ALLMULTI check should be redundant by 1.4
|
| 1414 |
|
|
* so don't forget to remove it.
|
| 1415 |
|
|
*/
|
| 1416 |
|
|
|
| 1417 |
|
|
else if (dev->flags & (IFF_PROMISC /*| IFF_ALLMULTI*/)) {
|
| 1418 |
|
|
if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
|
| 1419 |
|
|
skb->pkt_type = PACKET_OTHERHOST;
|
| 1420 |
|
|
}
|
| 1421 |
|
|
if (ntohs(eth->h_proto) >= 1536)
|
| 1422 |
|
|
return eth->h_proto;
|
| 1423 |
|
|
|
| 1424 |
|
|
rawp = skb->data;
|
| 1425 |
|
|
|
| 1426 |
|
|
/*
|
| 1427 |
|
|
* This is a magic hack to spot IPX packets. Older Novell breaks
|
| 1428 |
|
|
* the protocol design and runs IPX over 802.3 without an 802.2 LLC
|
| 1429 |
|
|
* layer. We look for FFFF which isn't a used 802.2 SSAP/DSAP. This
|
| 1430 |
|
|
* won't work for fault tolerant netware but does for the rest.
|
| 1431 |
|
|
*/
|
| 1432 |
|
|
if (*(unsigned short *) rawp == 0xFFFF)
|
| 1433 |
|
|
return htons(ETH_P_802_3);
|
| 1434 |
|
|
/*
|
| 1435 |
|
|
* Real 802.2 LLC
|
| 1436 |
|
|
*/
|
| 1437 |
|
|
return htons(ETH_P_802_2);
|
| 1438 |
|
|
}
|
| 1439 |
|
|
|
| 1440 |
|
|
|
| 1441 |
|
|
/*
|
| 1442 |
|
|
* CISCO HDLC keepalive specific stuff
|
| 1443 |
|
|
*/
|
| 1444 |
|
|
static struct sk_buff*
|
| 1445 |
|
|
isdn_net_ciscohdlck_alloc_skb(isdn_net_local *lp, int len)
|
| 1446 |
|
|
{
|
| 1447 |
|
|
unsigned short hl = dev->drv[lp->isdn_device]->interface->hl_hdrlen;
|
| 1448 |
|
|
struct sk_buff *skb;
|
| 1449 |
|
|
|
| 1450 |
|
|
skb = alloc_skb(hl + len, GFP_ATOMIC);
|
| 1451 |
|
|
if (!skb) {
|
| 1452 |
|
|
printk("isdn out of mem at %s:%d!\n", __FILE__, __LINE__);
|
| 1453 |
|
|
return 0;
|
| 1454 |
|
|
}
|
| 1455 |
|
|
skb_reserve(skb, hl);
|
| 1456 |
|
|
return skb;
|
| 1457 |
|
|
}
|
| 1458 |
|
|
|
| 1459 |
|
|
/* cisco hdlck device private ioctls */
|
| 1460 |
|
|
int
|
| 1461 |
|
|
isdn_ciscohdlck_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
| 1462 |
|
|
{
|
| 1463 |
|
|
isdn_net_local *lp = (isdn_net_local *) dev->priv;
|
| 1464 |
|
|
unsigned long len = 0;
|
| 1465 |
|
|
unsigned long expires = 0;
|
| 1466 |
|
|
int tmp = 0;
|
| 1467 |
|
|
int period = lp->cisco_keepalive_period;
|
| 1468 |
|
|
char debserint = lp->cisco_debserint;
|
| 1469 |
|
|
int rc = 0;
|
| 1470 |
|
|
|
| 1471 |
|
|
if (lp->p_encap != ISDN_NET_ENCAP_CISCOHDLCK)
|
| 1472 |
|
|
return -EINVAL;
|
| 1473 |
|
|
|
| 1474 |
|
|
switch (cmd) {
|
| 1475 |
|
|
/* get/set keepalive period */
|
| 1476 |
|
|
case SIOCGKEEPPERIOD:
|
| 1477 |
|
|
len = (unsigned long)sizeof(lp->cisco_keepalive_period);
|
| 1478 |
|
|
if (copy_to_user((char *)ifr->ifr_ifru.ifru_data,
|
| 1479 |
|
|
(int *)&lp->cisco_keepalive_period, len))
|
| 1480 |
|
|
rc = -EFAULT;
|
| 1481 |
|
|
break;
|
| 1482 |
|
|
case SIOCSKEEPPERIOD:
|
| 1483 |
|
|
tmp = lp->cisco_keepalive_period;
|
| 1484 |
|
|
len = (unsigned long)sizeof(lp->cisco_keepalive_period);
|
| 1485 |
|
|
if (copy_from_user((int *)&period,
|
| 1486 |
|
|
(char *)ifr->ifr_ifru.ifru_data, len))
|
| 1487 |
|
|
rc = -EFAULT;
|
| 1488 |
|
|
if ((period > 0) && (period <= 32767))
|
| 1489 |
|
|
lp->cisco_keepalive_period = period;
|
| 1490 |
|
|
else
|
| 1491 |
|
|
rc = -EINVAL;
|
| 1492 |
|
|
if (!rc && (tmp != lp->cisco_keepalive_period)) {
|
| 1493 |
|
|
expires = (unsigned long)(jiffies +
|
| 1494 |
|
|
lp->cisco_keepalive_period * HZ);
|
| 1495 |
|
|
mod_timer(&lp->cisco_timer, expires);
|
| 1496 |
|
|
printk(KERN_INFO "%s: Keepalive period set "
|
| 1497 |
|
|
"to %d seconds.\n",
|
| 1498 |
|
|
lp->name, lp->cisco_keepalive_period);
|
| 1499 |
|
|
}
|
| 1500 |
|
|
break;
|
| 1501 |
|
|
|
| 1502 |
|
|
/* get/set debugging */
|
| 1503 |
|
|
case SIOCGDEBSERINT:
|
| 1504 |
|
|
len = (unsigned long)sizeof(lp->cisco_debserint);
|
| 1505 |
|
|
if (copy_to_user((char *)ifr->ifr_ifru.ifru_data,
|
| 1506 |
|
|
(char *)&lp->cisco_debserint, len))
|
| 1507 |
|
|
rc = -EFAULT;
|
| 1508 |
|
|
break;
|
| 1509 |
|
|
case SIOCSDEBSERINT:
|
| 1510 |
|
|
len = (unsigned long)sizeof(lp->cisco_debserint);
|
| 1511 |
|
|
if (copy_from_user((char *)&debserint,
|
| 1512 |
|
|
(char *)ifr->ifr_ifru.ifru_data, len))
|
| 1513 |
|
|
rc = -EFAULT;
|
| 1514 |
|
|
if ((debserint >= 0) && (debserint <= 64))
|
| 1515 |
|
|
lp->cisco_debserint = debserint;
|
| 1516 |
|
|
else
|
| 1517 |
|
|
rc = -EINVAL;
|
| 1518 |
|
|
break;
|
| 1519 |
|
|
|
| 1520 |
|
|
default:
|
| 1521 |
|
|
rc = -EINVAL;
|
| 1522 |
|
|
break;
|
| 1523 |
|
|
}
|
| 1524 |
|
|
return (rc);
|
| 1525 |
|
|
}
|
| 1526 |
|
|
|
| 1527 |
|
|
/* called via cisco_timer.function */
|
| 1528 |
|
|
static void
|
| 1529 |
|
|
isdn_net_ciscohdlck_slarp_send_keepalive(unsigned long data)
|
| 1530 |
|
|
{
|
| 1531 |
|
|
isdn_net_local *lp = (isdn_net_local *) data;
|
| 1532 |
|
|
struct sk_buff *skb;
|
| 1533 |
|
|
unsigned char *p;
|
| 1534 |
|
|
unsigned long last_cisco_myseq = lp->cisco_myseq;
|
| 1535 |
|
|
int myseq_diff = 0;
|
| 1536 |
|
|
|
| 1537 |
|
|
if (!(lp->flags & ISDN_NET_CONNECTED) || lp->dialstate) {
|
| 1538 |
|
|
printk("isdn BUG at %s:%d!\n", __FILE__, __LINE__);
|
| 1539 |
|
|
return;
|
| 1540 |
|
|
}
|
| 1541 |
|
|
lp->cisco_myseq++;
|
| 1542 |
|
|
|
| 1543 |
|
|
myseq_diff = (lp->cisco_myseq - lp->cisco_mineseen);
|
| 1544 |
|
|
if ((lp->cisco_line_state) && ((myseq_diff >= 3)||(myseq_diff <= -3))) {
|
| 1545 |
|
|
/* line up -> down */
|
| 1546 |
|
|
lp->cisco_line_state = 0;
|
| 1547 |
|
|
printk (KERN_WARNING
|
| 1548 |
|
|
"UPDOWN: Line protocol on Interface %s,"
|
| 1549 |
|
|
" changed state to down\n", lp->name);
|
| 1550 |
|
|
/* should stop routing higher-level data accross */
|
| 1551 |
|
|
} else if ((!lp->cisco_line_state) &&
|
| 1552 |
|
|
(myseq_diff >= 0) && (myseq_diff <= 2)) {
|
| 1553 |
|
|
/* line down -> up */
|
| 1554 |
|
|
lp->cisco_line_state = 1;
|
| 1555 |
|
|
printk (KERN_WARNING
|
| 1556 |
|
|
"UPDOWN: Line protocol on Interface %s,"
|
| 1557 |
|
|
" changed state to up\n", lp->name);
|
| 1558 |
|
|
/* restart routing higher-level data accross */
|
| 1559 |
|
|
}
|
| 1560 |
|
|
|
| 1561 |
|
|
if (lp->cisco_debserint)
|
| 1562 |
|
|
printk (KERN_DEBUG "%s: HDLC "
|
| 1563 |
|
|
"myseq %lu, mineseen %lu%c, yourseen %lu, %s\n",
|
| 1564 |
|
|
lp->name, last_cisco_myseq, lp->cisco_mineseen,
|
| 1565 |
|
|
((last_cisco_myseq == lp->cisco_mineseen) ? '*' : 040),
|
| 1566 |
|
|
lp->cisco_yourseq,
|
| 1567 |
|
|
((lp->cisco_line_state) ? "line up" : "line down"));
|
| 1568 |
|
|
|
| 1569 |
|
|
skb = isdn_net_ciscohdlck_alloc_skb(lp, 4 + 14);
|
| 1570 |
|
|
if (!skb)
|
| 1571 |
|
|
return;
|
| 1572 |
|
|
|
| 1573 |
|
|
p = skb_put(skb, 4 + 14);
|
| 1574 |
|
|
|
| 1575 |
|
|
/* cisco header */
|
| 1576 |
|
|
p += put_u8 (p, CISCO_ADDR_UNICAST);
|
| 1577 |
|
|
p += put_u8 (p, CISCO_CTRL);
|
| 1578 |
|
|
p += put_u16(p, CISCO_TYPE_SLARP);
|
| 1579 |
|
|
|
| 1580 |
|
|
/* slarp keepalive */
|
| 1581 |
|
|
p += put_u32(p, CISCO_SLARP_KEEPALIVE);
|
| 1582 |
|
|
p += put_u32(p, lp->cisco_myseq);
|
| 1583 |
|
|
p += put_u32(p, lp->cisco_yourseq);
|
| 1584 |
|
|
p += put_u16(p, 0xffff); // reliablity, always 0xffff
|
| 1585 |
|
|
|
| 1586 |
|
|
isdn_net_write_super(lp, skb);
|
| 1587 |
|
|
|
| 1588 |
|
|
lp->cisco_timer.expires = jiffies + lp->cisco_keepalive_period * HZ;
|
| 1589 |
|
|
|
| 1590 |
|
|
add_timer(&lp->cisco_timer);
|
| 1591 |
|
|
}
|
| 1592 |
|
|
|
| 1593 |
|
|
static void
|
| 1594 |
|
|
isdn_net_ciscohdlck_slarp_send_request(isdn_net_local *lp)
|
| 1595 |
|
|
{
|
| 1596 |
|
|
struct sk_buff *skb;
|
| 1597 |
|
|
unsigned char *p;
|
| 1598 |
|
|
|
| 1599 |
|
|
skb = isdn_net_ciscohdlck_alloc_skb(lp, 4 + 14);
|
| 1600 |
|
|
if (!skb)
|
| 1601 |
|
|
return;
|
| 1602 |
|
|
|
| 1603 |
|
|
p = skb_put(skb, 4 + 14);
|
| 1604 |
|
|
|
| 1605 |
|
|
/* cisco header */
|
| 1606 |
|
|
p += put_u8 (p, CISCO_ADDR_UNICAST);
|
| 1607 |
|
|
p += put_u8 (p, CISCO_CTRL);
|
| 1608 |
|
|
p += put_u16(p, CISCO_TYPE_SLARP);
|
| 1609 |
|
|
|
| 1610 |
|
|
/* slarp request */
|
| 1611 |
|
|
p += put_u32(p, CISCO_SLARP_REQUEST);
|
| 1612 |
|
|
p += put_u32(p, 0); // address
|
| 1613 |
|
|
p += put_u32(p, 0); // netmask
|
| 1614 |
|
|
p += put_u16(p, 0); // unused
|
| 1615 |
|
|
|
| 1616 |
|
|
isdn_net_write_super(lp, skb);
|
| 1617 |
|
|
}
|
| 1618 |
|
|
|
| 1619 |
|
|
static void
|
| 1620 |
|
|
isdn_net_ciscohdlck_connected(isdn_net_local *lp)
|
| 1621 |
|
|
{
|
| 1622 |
|
|
lp->cisco_myseq = 0;
|
| 1623 |
|
|
lp->cisco_mineseen = 0;
|
| 1624 |
|
|
lp->cisco_yourseq = 0;
|
| 1625 |
|
|
lp->cisco_keepalive_period = ISDN_TIMER_KEEPINT;
|
| 1626 |
|
|
lp->cisco_last_slarp_in = 0;
|
| 1627 |
|
|
lp->cisco_line_state = 0;
|
| 1628 |
|
|
lp->cisco_debserint = 0;
|
| 1629 |
|
|
|
| 1630 |
|
|
/* send slarp request because interface/seq.no.s reset */
|
| 1631 |
|
|
isdn_net_ciscohdlck_slarp_send_request(lp);
|
| 1632 |
|
|
|
| 1633 |
|
|
init_timer(&lp->cisco_timer);
|
| 1634 |
|
|
lp->cisco_timer.data = (unsigned long) lp;
|
| 1635 |
|
|
lp->cisco_timer.function = isdn_net_ciscohdlck_slarp_send_keepalive;
|
| 1636 |
|
|
lp->cisco_timer.expires = jiffies + lp->cisco_keepalive_period * HZ;
|
| 1637 |
|
|
add_timer(&lp->cisco_timer);
|
| 1638 |
|
|
}
|
| 1639 |
|
|
|
| 1640 |
|
|
static void
|
| 1641 |
|
|
isdn_net_ciscohdlck_disconnected(isdn_net_local *lp)
|
| 1642 |
|
|
{
|
| 1643 |
|
|
del_timer(&lp->cisco_timer);
|
| 1644 |
|
|
}
|
| 1645 |
|
|
|
| 1646 |
|
|
static void
|
| 1647 |
|
|
isdn_net_ciscohdlck_slarp_send_reply(isdn_net_local *lp)
|
| 1648 |
|
|
{
|
| 1649 |
|
|
struct sk_buff *skb;
|
| 1650 |
|
|
unsigned char *p;
|
| 1651 |
|
|
struct in_device *in_dev = NULL;
|
| 1652 |
|
|
u32 addr = 0; /* local ipv4 address */
|
| 1653 |
|
|
u32 mask = 0; /* local netmask */
|
| 1654 |
|
|
|
| 1655 |
|
|
if ((in_dev = lp->netdev->dev.ip_ptr) != NULL) {
|
| 1656 |
|
|
/* take primary(first) address of interface */
|
| 1657 |
|
|
struct in_ifaddr *ifa = in_dev->ifa_list;
|
| 1658 |
|
|
if (ifa != NULL) {
|
| 1659 |
|
|
addr = ifa->ifa_local;
|
| 1660 |
|
|
mask = ifa->ifa_mask;
|
| 1661 |
|
|
}
|
| 1662 |
|
|
}
|
| 1663 |
|
|
|
| 1664 |
|
|
skb = isdn_net_ciscohdlck_alloc_skb(lp, 4 + 14);
|
| 1665 |
|
|
if (!skb)
|
| 1666 |
|
|
return;
|
| 1667 |
|
|
|
| 1668 |
|
|
p = skb_put(skb, 4 + 14);
|
| 1669 |
|
|
|
| 1670 |
|
|
/* cisco header */
|
| 1671 |
|
|
p += put_u8 (p, CISCO_ADDR_UNICAST);
|
| 1672 |
|
|
p += put_u8 (p, CISCO_CTRL);
|
| 1673 |
|
|
p += put_u16(p, CISCO_TYPE_SLARP);
|
| 1674 |
|
|
|
| 1675 |
|
|
/* slarp reply, send own ip/netmask; if values are nonsense remote
|
| 1676 |
|
|
* should think we are unable to provide it with an address via SLARP */
|
| 1677 |
|
|
p += put_u32(p, CISCO_SLARP_REPLY);
|
| 1678 |
|
|
p += put_u32(p, addr); // address
|
| 1679 |
|
|
p += put_u32(p, mask); // netmask
|
| 1680 |
|
|
p += put_u16(p, 0); // unused
|
| 1681 |
|
|
|
| 1682 |
|
|
isdn_net_write_super(lp, skb);
|
| 1683 |
|
|
}
|
| 1684 |
|
|
|
| 1685 |
|
|
static void
|
| 1686 |
|
|
isdn_net_ciscohdlck_slarp_in(isdn_net_local *lp, struct sk_buff *skb)
|
| 1687 |
|
|
{
|
| 1688 |
|
|
unsigned char *p;
|
| 1689 |
|
|
int period;
|
| 1690 |
|
|
u32 code;
|
| 1691 |
|
|
u32 my_seq, addr;
|
| 1692 |
|
|
u32 your_seq, mask;
|
| 1693 |
|
|
u32 local;
|
| 1694 |
|
|
u16 unused;
|
| 1695 |
|
|
|
| 1696 |
|
|
if (skb->len < 14)
|
| 1697 |
|
|
return;
|
| 1698 |
|
|
|
| 1699 |
|
|
p = skb->data;
|
| 1700 |
|
|
p += get_u32(p, &code);
|
| 1701 |
|
|
|
| 1702 |
|
|
switch (code) {
|
| 1703 |
|
|
case CISCO_SLARP_REQUEST:
|
| 1704 |
|
|
lp->cisco_yourseq = 0;
|
| 1705 |
|
|
isdn_net_ciscohdlck_slarp_send_reply(lp);
|
| 1706 |
|
|
break;
|
| 1707 |
|
|
case CISCO_SLARP_REPLY:
|
| 1708 |
|
|
addr = ntohl(*(u32 *)p);
|
| 1709 |
|
|
mask = ntohl(*(u32 *)(p+4));
|
| 1710 |
|
|
if (mask != 0xfffffffc)
|
| 1711 |
|
|
goto slarp_reply_out;
|
| 1712 |
|
|
if ((addr & 3) == 0 || (addr & 3) == 3)
|
| 1713 |
|
|
goto slarp_reply_out;
|
| 1714 |
|
|
local = addr ^ 3;
|
| 1715 |
|
|
printk(KERN_INFO "%s: got slarp reply: "
|
| 1716 |
|
|
"remote ip: %d.%d.%d.%d, "
|
| 1717 |
|
|
"local ip: %d.%d.%d.%d "
|
| 1718 |
|
|
"mask: %d.%d.%d.%d\n",
|
| 1719 |
|
|
lp->name,
|
| 1720 |
|
|
HIPQUAD(addr),
|
| 1721 |
|
|
HIPQUAD(local),
|
| 1722 |
|
|
HIPQUAD(mask));
|
| 1723 |
|
|
break;
|
| 1724 |
|
|
slarp_reply_out:
|
| 1725 |
|
|
printk(KERN_INFO "%s: got invalid slarp "
|
| 1726 |
|
|
"reply (%d.%d.%d.%d/%d.%d.%d.%d) "
|
| 1727 |
|
|
"- ignored\n", lp->name,
|
| 1728 |
|
|
HIPQUAD(addr), HIPQUAD(mask));
|
| 1729 |
|
|
break;
|
| 1730 |
|
|
case CISCO_SLARP_KEEPALIVE:
|
| 1731 |
|
|
period = (int)((jiffies - lp->cisco_last_slarp_in
|
| 1732 |
|
|
+ HZ/2 - 1) / HZ);
|
| 1733 |
|
|
if (lp->cisco_debserint &&
|
| 1734 |
|
|
(period != lp->cisco_keepalive_period) &&
|
| 1735 |
|
|
lp->cisco_last_slarp_in) {
|
| 1736 |
|
|
printk(KERN_DEBUG "%s: Keepalive period mismatch - "
|
| 1737 |
|
|
"is %d but should be %d.\n",
|
| 1738 |
|
|
lp->name, period, lp->cisco_keepalive_period);
|
| 1739 |
|
|
}
|
| 1740 |
|
|
lp->cisco_last_slarp_in = jiffies;
|
| 1741 |
|
|
p += get_u32(p, &my_seq);
|
| 1742 |
|
|
p += get_u32(p, &your_seq);
|
| 1743 |
|
|
p += get_u16(p, &unused);
|
| 1744 |
|
|
lp->cisco_yourseq = my_seq;
|
| 1745 |
|
|
lp->cisco_mineseen = your_seq;
|
| 1746 |
|
|
break;
|
| 1747 |
|
|
}
|
| 1748 |
|
|
}
|
| 1749 |
|
|
|
| 1750 |
|
|
static void
|
| 1751 |
|
|
isdn_net_ciscohdlck_receive(isdn_net_local *lp, struct sk_buff *skb)
|
| 1752 |
|
|
{
|
| 1753 |
|
|
unsigned char *p;
|
| 1754 |
|
|
u8 addr;
|
| 1755 |
|
|
u8 ctrl;
|
| 1756 |
|
|
u16 type;
|
| 1757 |
|
|
|
| 1758 |
|
|
if (skb->len < 4)
|
| 1759 |
|
|
goto out_free;
|
| 1760 |
|
|
|
| 1761 |
|
|
p = skb->data;
|
| 1762 |
|
|
p += get_u8 (p, &addr);
|
| 1763 |
|
|
p += get_u8 (p, &ctrl);
|
| 1764 |
|
|
p += get_u16(p, &type);
|
| 1765 |
|
|
skb_pull(skb, 4);
|
| 1766 |
|
|
|
| 1767 |
|
|
if (addr != CISCO_ADDR_UNICAST && addr != CISCO_ADDR_BROADCAST) {
|
| 1768 |
|
|
printk(KERN_WARNING "%s: Unknown Cisco addr 0x%02x\n",
|
| 1769 |
|
|
lp->name, addr);
|
| 1770 |
|
|
goto out_free;
|
| 1771 |
|
|
}
|
| 1772 |
|
|
if (ctrl != CISCO_CTRL) {
|
| 1773 |
|
|
printk(KERN_WARNING "%s: Unknown Cisco ctrl 0x%02x\n",
|
| 1774 |
|
|
lp->name, ctrl);
|
| 1775 |
|
|
goto out_free;
|
| 1776 |
|
|
}
|
| 1777 |
|
|
|
| 1778 |
|
|
switch (type) {
|
| 1779 |
|
|
case CISCO_TYPE_SLARP:
|
| 1780 |
|
|
isdn_net_ciscohdlck_slarp_in(lp, skb);
|
| 1781 |
|
|
goto out_free;
|
| 1782 |
|
|
case CISCO_TYPE_CDP:
|
| 1783 |
|
|
if (lp->cisco_debserint)
|
| 1784 |
|
|
printk(KERN_DEBUG "%s: Received CDP packet. use "
|
| 1785 |
|
|
"\"no cdp enable\" on cisco.\n", lp->name);
|
| 1786 |
|
|
goto out_free;
|
| 1787 |
|
|
default:
|
| 1788 |
|
|
/* no special cisco protocol */
|
| 1789 |
|
|
skb->protocol = htons(type);
|
| 1790 |
|
|
netif_rx(skb);
|
| 1791 |
|
|
return;
|
| 1792 |
|
|
}
|
| 1793 |
|
|
|
| 1794 |
|
|
out_free:
|
| 1795 |
|
|
kfree_skb(skb);
|
| 1796 |
|
|
}
|
| 1797 |
|
|
|
| 1798 |
|
|
/*
|
| 1799 |
|
|
* Got a packet from ISDN-Channel.
|
| 1800 |
|
|
*/
|
| 1801 |
|
|
static void
|
| 1802 |
|
|
isdn_net_receive(struct net_device *ndev, struct sk_buff *skb)
|
| 1803 |
|
|
{
|
| 1804 |
|
|
isdn_net_local *lp = (isdn_net_local *) ndev->priv;
|
| 1805 |
|
|
isdn_net_local *olp = lp; /* original 'lp' */
|
| 1806 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1807 |
|
|
struct concap_proto *cprot = lp -> netdev -> cprot;
|
| 1808 |
|
|
#endif
|
| 1809 |
|
|
lp->transcount += skb->len;
|
| 1810 |
|
|
|
| 1811 |
|
|
lp->stats.rx_packets++;
|
| 1812 |
|
|
lp->stats.rx_bytes += skb->len;
|
| 1813 |
|
|
if (lp->master) {
|
| 1814 |
|
|
/* Bundling: If device is a slave-device, deliver to master, also
|
| 1815 |
|
|
* handle master's statistics and hangup-timeout
|
| 1816 |
|
|
*/
|
| 1817 |
|
|
ndev = lp->master;
|
| 1818 |
|
|
lp = (isdn_net_local *) ndev->priv;
|
| 1819 |
|
|
lp->stats.rx_packets++;
|
| 1820 |
|
|
lp->stats.rx_bytes += skb->len;
|
| 1821 |
|
|
}
|
| 1822 |
|
|
skb->dev = ndev;
|
| 1823 |
|
|
skb->pkt_type = PACKET_HOST;
|
| 1824 |
|
|
skb->mac.raw = skb->data;
|
| 1825 |
|
|
#ifdef ISDN_DEBUG_NET_DUMP
|
| 1826 |
|
|
isdn_dumppkt("R:", skb->data, skb->len, 40);
|
| 1827 |
|
|
#endif
|
| 1828 |
|
|
switch (lp->p_encap) {
|
| 1829 |
|
|
case ISDN_NET_ENCAP_ETHER:
|
| 1830 |
|
|
/* Ethernet over ISDN */
|
| 1831 |
|
|
olp->huptimer = 0;
|
| 1832 |
|
|
lp->huptimer = 0;
|
| 1833 |
|
|
skb->protocol = isdn_net_type_trans(skb, ndev);
|
| 1834 |
|
|
break;
|
| 1835 |
|
|
case ISDN_NET_ENCAP_UIHDLC:
|
| 1836 |
|
|
/* HDLC with UI-frame (for ispa with -h1 option) */
|
| 1837 |
|
|
olp->huptimer = 0;
|
| 1838 |
|
|
lp->huptimer = 0;
|
| 1839 |
|
|
skb_pull(skb, 2);
|
| 1840 |
|
|
/* Fall through */
|
| 1841 |
|
|
case ISDN_NET_ENCAP_RAWIP:
|
| 1842 |
|
|
/* RAW-IP without MAC-Header */
|
| 1843 |
|
|
olp->huptimer = 0;
|
| 1844 |
|
|
lp->huptimer = 0;
|
| 1845 |
|
|
skb->protocol = htons(ETH_P_IP);
|
| 1846 |
|
|
break;
|
| 1847 |
|
|
case ISDN_NET_ENCAP_CISCOHDLCK:
|
| 1848 |
|
|
isdn_net_ciscohdlck_receive(lp, skb);
|
| 1849 |
|
|
return;
|
| 1850 |
|
|
case ISDN_NET_ENCAP_CISCOHDLC:
|
| 1851 |
|
|
/* CISCO-HDLC IP with type field and fake I-frame-header */
|
| 1852 |
|
|
skb_pull(skb, 2);
|
| 1853 |
|
|
/* Fall through */
|
| 1854 |
|
|
case ISDN_NET_ENCAP_IPTYP:
|
| 1855 |
|
|
/* IP with type field */
|
| 1856 |
|
|
olp->huptimer = 0;
|
| 1857 |
|
|
lp->huptimer = 0;
|
| 1858 |
|
|
skb->protocol = *(unsigned short *) &(skb->data[0]);
|
| 1859 |
|
|
skb_pull(skb, 2);
|
| 1860 |
|
|
if (*(unsigned short *) skb->data == 0xFFFF)
|
| 1861 |
|
|
skb->protocol = htons(ETH_P_802_3);
|
| 1862 |
|
|
break;
|
| 1863 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1864 |
|
|
case ISDN_NET_ENCAP_SYNCPPP:
|
| 1865 |
|
|
/* huptimer is done in isdn_ppp_push_higher */
|
| 1866 |
|
|
isdn_ppp_receive(lp->netdev, olp, skb);
|
| 1867 |
|
|
return;
|
| 1868 |
|
|
#endif
|
| 1869 |
|
|
|
| 1870 |
|
|
default:
|
| 1871 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1872 |
|
|
/* try if there are generic sync_device receiver routines */
|
| 1873 |
|
|
if(cprot) if(cprot -> pops)
|
| 1874 |
|
|
if( cprot -> pops -> data_ind){
|
| 1875 |
|
|
cprot -> pops -> data_ind(cprot,skb);
|
| 1876 |
|
|
return;
|
| 1877 |
|
|
};
|
| 1878 |
|
|
#endif /* CONFIG_ISDN_X25 */
|
| 1879 |
|
|
printk(KERN_WARNING "%s: unknown encapsulation, dropping\n",
|
| 1880 |
|
|
lp->name);
|
| 1881 |
|
|
kfree_skb(skb);
|
| 1882 |
|
|
return;
|
| 1883 |
|
|
}
|
| 1884 |
|
|
|
| 1885 |
|
|
netif_rx(skb);
|
| 1886 |
|
|
return;
|
| 1887 |
|
|
}
|
| 1888 |
|
|
|
| 1889 |
|
|
/*
|
| 1890 |
|
|
* A packet arrived via ISDN. Search interface-chain for a corresponding
|
| 1891 |
|
|
* interface. If found, deliver packet to receiver-function and return 1,
|
| 1892 |
|
|
* else return 0.
|
| 1893 |
|
|
*/
|
| 1894 |
|
|
int
|
| 1895 |
|
|
isdn_net_rcv_skb(int idx, struct sk_buff *skb)
|
| 1896 |
|
|
{
|
| 1897 |
|
|
isdn_net_dev *p = dev->rx_netdev[idx];
|
| 1898 |
|
|
|
| 1899 |
|
|
if (p) {
|
| 1900 |
|
|
isdn_net_local *lp = p->local;
|
| 1901 |
|
|
if ((lp->flags & ISDN_NET_CONNECTED) &&
|
| 1902 |
|
|
(!lp->dialstate)) {
|
| 1903 |
|
|
isdn_net_receive(&p->dev, skb);
|
| 1904 |
|
|
return 1;
|
| 1905 |
|
|
}
|
| 1906 |
|
|
}
|
| 1907 |
|
|
return 0;
|
| 1908 |
|
|
}
|
| 1909 |
|
|
|
| 1910 |
|
|
static int
|
| 1911 |
|
|
my_eth_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
|
| 1912 |
|
|
void *daddr, void *saddr, unsigned len)
|
| 1913 |
|
|
{
|
| 1914 |
|
|
struct ethhdr *eth = (struct ethhdr *) skb_push(skb, ETH_HLEN);
|
| 1915 |
|
|
|
| 1916 |
|
|
/*
|
| 1917 |
|
|
* Set the protocol type. For a packet of type ETH_P_802_3 we
|
| 1918 |
|
|
* put the length here instead. It is up to the 802.2 layer to
|
| 1919 |
|
|
* carry protocol information.
|
| 1920 |
|
|
*/
|
| 1921 |
|
|
|
| 1922 |
|
|
if (type != ETH_P_802_3)
|
| 1923 |
|
|
eth->h_proto = htons(type);
|
| 1924 |
|
|
else
|
| 1925 |
|
|
eth->h_proto = htons(len);
|
| 1926 |
|
|
|
| 1927 |
|
|
/*
|
| 1928 |
|
|
* Set the source hardware address.
|
| 1929 |
|
|
*/
|
| 1930 |
|
|
if (saddr)
|
| 1931 |
|
|
memcpy(eth->h_source, saddr, dev->addr_len);
|
| 1932 |
|
|
else
|
| 1933 |
|
|
memcpy(eth->h_source, dev->dev_addr, dev->addr_len);
|
| 1934 |
|
|
|
| 1935 |
|
|
/*
|
| 1936 |
|
|
* Anyway, the loopback-device should never use this function...
|
| 1937 |
|
|
*/
|
| 1938 |
|
|
|
| 1939 |
|
|
if (dev->flags & (IFF_LOOPBACK | IFF_NOARP)) {
|
| 1940 |
|
|
memset(eth->h_dest, 0, dev->addr_len);
|
| 1941 |
|
|
return ETH_HLEN /*(dev->hard_header_len)*/;
|
| 1942 |
|
|
}
|
| 1943 |
|
|
if (daddr) {
|
| 1944 |
|
|
memcpy(eth->h_dest, daddr, dev->addr_len);
|
| 1945 |
|
|
return ETH_HLEN /*dev->hard_header_len*/;
|
| 1946 |
|
|
}
|
| 1947 |
|
|
return -ETH_HLEN /*dev->hard_header_len*/;
|
| 1948 |
|
|
}
|
| 1949 |
|
|
|
| 1950 |
|
|
/*
|
| 1951 |
|
|
* build an header
|
| 1952 |
|
|
* depends on encaps that is being used.
|
| 1953 |
|
|
*/
|
| 1954 |
|
|
|
| 1955 |
|
|
static int
|
| 1956 |
|
|
isdn_net_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
|
| 1957 |
|
|
void *daddr, void *saddr, unsigned plen)
|
| 1958 |
|
|
{
|
| 1959 |
|
|
isdn_net_local *lp = dev->priv;
|
| 1960 |
|
|
unsigned char *p;
|
| 1961 |
|
|
ushort len = 0;
|
| 1962 |
|
|
|
| 1963 |
|
|
switch (lp->p_encap) {
|
| 1964 |
|
|
case ISDN_NET_ENCAP_ETHER:
|
| 1965 |
|
|
len = my_eth_header(skb, dev, type, daddr, saddr, plen);
|
| 1966 |
|
|
break;
|
| 1967 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 1968 |
|
|
case ISDN_NET_ENCAP_SYNCPPP:
|
| 1969 |
|
|
/* stick on a fake header to keep fragmentation code happy. */
|
| 1970 |
|
|
len = IPPP_MAX_HEADER;
|
| 1971 |
|
|
skb_push(skb,len);
|
| 1972 |
|
|
break;
|
| 1973 |
|
|
#endif
|
| 1974 |
|
|
case ISDN_NET_ENCAP_RAWIP:
|
| 1975 |
|
|
printk(KERN_WARNING "isdn_net_header called with RAW_IP!\n");
|
| 1976 |
|
|
len = 0;
|
| 1977 |
|
|
break;
|
| 1978 |
|
|
case ISDN_NET_ENCAP_IPTYP:
|
| 1979 |
|
|
/* ethernet type field */
|
| 1980 |
|
|
*((ushort *) skb_push(skb, 2)) = htons(type);
|
| 1981 |
|
|
len = 2;
|
| 1982 |
|
|
break;
|
| 1983 |
|
|
case ISDN_NET_ENCAP_UIHDLC:
|
| 1984 |
|
|
/* HDLC with UI-Frames (for ispa with -h1 option) */
|
| 1985 |
|
|
*((ushort *) skb_push(skb, 2)) = htons(0x0103);
|
| 1986 |
|
|
len = 2;
|
| 1987 |
|
|
break;
|
| 1988 |
|
|
case ISDN_NET_ENCAP_CISCOHDLC:
|
| 1989 |
|
|
case ISDN_NET_ENCAP_CISCOHDLCK:
|
| 1990 |
|
|
p = skb_push(skb, 4);
|
| 1991 |
|
|
p += put_u8 (p, CISCO_ADDR_UNICAST);
|
| 1992 |
|
|
p += put_u8 (p, CISCO_CTRL);
|
| 1993 |
|
|
p += put_u16(p, type);
|
| 1994 |
|
|
len = 4;
|
| 1995 |
|
|
break;
|
| 1996 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1997 |
|
|
default:
|
| 1998 |
|
|
/* try if there are generic concap protocol routines */
|
| 1999 |
|
|
if( lp-> netdev -> cprot ){
|
| 2000 |
|
|
printk(KERN_WARNING "isdn_net_header called with concap_proto!\n");
|
| 2001 |
|
|
len = 0;
|
| 2002 |
|
|
break;
|
| 2003 |
|
|
}
|
| 2004 |
|
|
break;
|
| 2005 |
|
|
#endif /* CONFIG_ISDN_X25 */
|
| 2006 |
|
|
}
|
| 2007 |
|
|
return len;
|
| 2008 |
|
|
}
|
| 2009 |
|
|
|
| 2010 |
|
|
/* We don't need to send arp, because we have point-to-point connections. */
|
| 2011 |
|
|
static int
|
| 2012 |
|
|
isdn_net_rebuild_header(struct sk_buff *skb)
|
| 2013 |
|
|
{
|
| 2014 |
|
|
struct net_device *dev = skb->dev;
|
| 2015 |
|
|
isdn_net_local *lp = dev->priv;
|
| 2016 |
|
|
int ret = 0;
|
| 2017 |
|
|
|
| 2018 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_ETHER) {
|
| 2019 |
|
|
struct ethhdr *eth = (struct ethhdr *) skb->data;
|
| 2020 |
|
|
|
| 2021 |
|
|
/*
|
| 2022 |
|
|
* Only ARP/IP is currently supported
|
| 2023 |
|
|
*/
|
| 2024 |
|
|
|
| 2025 |
|
|
if (eth->h_proto != htons(ETH_P_IP)) {
|
| 2026 |
|
|
printk(KERN_WARNING
|
| 2027 |
|
|
"isdn_net: %s don't know how to resolve type %d addresses?\n",
|
| 2028 |
|
|
dev->name, (int) eth->h_proto);
|
| 2029 |
|
|
memcpy(eth->h_source, dev->dev_addr, dev->addr_len);
|
| 2030 |
|
|
return 0;
|
| 2031 |
|
|
}
|
| 2032 |
|
|
/*
|
| 2033 |
|
|
* Try to get ARP to resolve the header.
|
| 2034 |
|
|
*/
|
| 2035 |
|
|
#ifdef CONFIG_INET
|
| 2036 |
|
|
ret = arp_find(eth->h_dest, skb);
|
| 2037 |
|
|
#endif
|
| 2038 |
|
|
}
|
| 2039 |
|
|
return ret;
|
| 2040 |
|
|
}
|
| 2041 |
|
|
|
| 2042 |
|
|
/*
|
| 2043 |
|
|
* Interface-setup. (just after registering a new interface)
|
| 2044 |
|
|
*/
|
| 2045 |
|
|
static int
|
| 2046 |
|
|
isdn_net_init(struct net_device *ndev)
|
| 2047 |
|
|
{
|
| 2048 |
|
|
ushort max_hlhdr_len = 0;
|
| 2049 |
|
|
isdn_net_local *lp = (isdn_net_local *) ndev->priv;
|
| 2050 |
|
|
int drvidx, i;
|
| 2051 |
|
|
|
| 2052 |
|
|
ether_setup(ndev);
|
| 2053 |
|
|
lp->org_hhc = ndev->hard_header_cache;
|
| 2054 |
|
|
lp->org_hcu = ndev->header_cache_update;
|
| 2055 |
|
|
|
| 2056 |
|
|
/* Setup the generic properties */
|
| 2057 |
|
|
|
| 2058 |
|
|
ndev->hard_header = NULL;
|
| 2059 |
|
|
ndev->hard_header_cache = NULL;
|
| 2060 |
|
|
ndev->header_cache_update = NULL;
|
| 2061 |
|
|
ndev->mtu = 1500;
|
| 2062 |
|
|
ndev->flags = IFF_NOARP|IFF_POINTOPOINT;
|
| 2063 |
|
|
ndev->type = ARPHRD_ETHER;
|
| 2064 |
|
|
ndev->addr_len = ETH_ALEN;
|
| 2065 |
|
|
|
| 2066 |
|
|
/* for clients with MPPP maybe higher values better */
|
| 2067 |
|
|
ndev->tx_queue_len = 30;
|
| 2068 |
|
|
|
| 2069 |
|
|
for (i = 0; i < ETH_ALEN; i++)
|
| 2070 |
|
|
ndev->broadcast[i] = 0xff;
|
| 2071 |
|
|
|
| 2072 |
|
|
/* The ISDN-specific entries in the device structure. */
|
| 2073 |
|
|
ndev->open = &isdn_net_open;
|
| 2074 |
|
|
ndev->hard_start_xmit = &isdn_net_start_xmit;
|
| 2075 |
|
|
|
| 2076 |
|
|
/*
|
| 2077 |
|
|
* up till binding we ask the protocol layer to reserve as much
|
| 2078 |
|
|
* as we might need for HL layer
|
| 2079 |
|
|
*/
|
| 2080 |
|
|
|
| 2081 |
|
|
for (drvidx = 0; drvidx < ISDN_MAX_DRIVERS; drvidx++)
|
| 2082 |
|
|
if (dev->drv[drvidx])
|
| 2083 |
|
|
if (max_hlhdr_len < dev->drv[drvidx]->interface->hl_hdrlen)
|
| 2084 |
|
|
max_hlhdr_len = dev->drv[drvidx]->interface->hl_hdrlen;
|
| 2085 |
|
|
|
| 2086 |
|
|
ndev->hard_header_len = ETH_HLEN + max_hlhdr_len;
|
| 2087 |
|
|
ndev->stop = &isdn_net_close;
|
| 2088 |
|
|
ndev->get_stats = &isdn_net_get_stats;
|
| 2089 |
|
|
ndev->rebuild_header = &isdn_net_rebuild_header;
|
| 2090 |
|
|
ndev->do_ioctl = NULL;
|
| 2091 |
|
|
return 0;
|
| 2092 |
|
|
}
|
| 2093 |
|
|
|
| 2094 |
|
|
static void
|
| 2095 |
|
|
isdn_net_swapbind(int drvidx)
|
| 2096 |
|
|
{
|
| 2097 |
|
|
isdn_net_dev *p;
|
| 2098 |
|
|
|
| 2099 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2100 |
|
|
printk(KERN_DEBUG "n_fi: swapping ch of %d\n", drvidx);
|
| 2101 |
|
|
#endif
|
| 2102 |
|
|
p = dev->netdev;
|
| 2103 |
|
|
while (p) {
|
| 2104 |
|
|
if (p->local->pre_device == drvidx)
|
| 2105 |
|
|
switch (p->local->pre_channel) {
|
| 2106 |
|
|
case 0:
|
| 2107 |
|
|
p->local->pre_channel = 1;
|
| 2108 |
|
|
break;
|
| 2109 |
|
|
case 1:
|
| 2110 |
|
|
p->local->pre_channel = 0;
|
| 2111 |
|
|
break;
|
| 2112 |
|
|
}
|
| 2113 |
|
|
p = (isdn_net_dev *) p->next;
|
| 2114 |
|
|
}
|
| 2115 |
|
|
}
|
| 2116 |
|
|
|
| 2117 |
|
|
static void
|
| 2118 |
|
|
isdn_net_swap_usage(int i1, int i2)
|
| 2119 |
|
|
{
|
| 2120 |
|
|
int u1 = dev->usage[i1] & ISDN_USAGE_EXCLUSIVE;
|
| 2121 |
|
|
int u2 = dev->usage[i2] & ISDN_USAGE_EXCLUSIVE;
|
| 2122 |
|
|
|
| 2123 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2124 |
|
|
printk(KERN_DEBUG "n_fi: usage of %d and %d\n", i1, i2);
|
| 2125 |
|
|
#endif
|
| 2126 |
|
|
dev->usage[i1] &= ~ISDN_USAGE_EXCLUSIVE;
|
| 2127 |
|
|
dev->usage[i1] |= u2;
|
| 2128 |
|
|
dev->usage[i2] &= ~ISDN_USAGE_EXCLUSIVE;
|
| 2129 |
|
|
dev->usage[i2] |= u1;
|
| 2130 |
|
|
isdn_info_update();
|
| 2131 |
|
|
}
|
| 2132 |
|
|
|
| 2133 |
|
|
/*
|
| 2134 |
|
|
* An incoming call-request has arrived.
|
| 2135 |
|
|
* Search the interface-chain for an appropriate interface.
|
| 2136 |
|
|
* If found, connect the interface to the ISDN-channel and initiate
|
| 2137 |
|
|
* D- and B-Channel-setup. If secure-flag is set, accept only
|
| 2138 |
|
|
* configured phone-numbers. If callback-flag is set, initiate
|
| 2139 |
|
|
* callback-dialing.
|
| 2140 |
|
|
*
|
| 2141 |
|
|
* Return-Value: 0 = No appropriate interface for this call.
|
| 2142 |
|
|
* 1 = Call accepted
|
| 2143 |
|
|
* 2 = Reject call, wait cbdelay, then call back
|
| 2144 |
|
|
* 3 = Reject call
|
| 2145 |
|
|
* 4 = Wait cbdelay, then call back
|
| 2146 |
|
|
* 5 = No appropriate interface for this call,
|
| 2147 |
|
|
* would eventually match if CID was longer.
|
| 2148 |
|
|
*/
|
| 2149 |
|
|
int
|
| 2150 |
|
|
isdn_net_find_icall(int di, int ch, int idx, setup_parm *setup)
|
| 2151 |
|
|
{
|
| 2152 |
|
|
char *eaz;
|
| 2153 |
|
|
int si1;
|
| 2154 |
|
|
int si2;
|
| 2155 |
|
|
int ematch;
|
| 2156 |
|
|
int wret;
|
| 2157 |
|
|
int swapped;
|
| 2158 |
|
|
int sidx = 0;
|
| 2159 |
|
|
isdn_net_dev *p;
|
| 2160 |
|
|
isdn_net_phone *n;
|
| 2161 |
|
|
ulong flags;
|
| 2162 |
|
|
char nr[32];
|
| 2163 |
|
|
char *my_eaz;
|
| 2164 |
|
|
|
| 2165 |
|
|
/* Search name in netdev-chain */
|
| 2166 |
|
|
save_flags(flags);
|
| 2167 |
|
|
cli();
|
| 2168 |
|
|
if (!setup->phone[0]) {
|
| 2169 |
|
|
nr[0] = '0';
|
| 2170 |
|
|
nr[1] = '\0';
|
| 2171 |
|
|
printk(KERN_INFO "isdn_net: Incoming call without OAD, assuming '0'\n");
|
| 2172 |
|
|
} else
|
| 2173 |
|
|
strcpy(nr, setup->phone);
|
| 2174 |
|
|
si1 = (int) setup->si1;
|
| 2175 |
|
|
si2 = (int) setup->si2;
|
| 2176 |
|
|
if (!setup->eazmsn[0]) {
|
| 2177 |
|
|
printk(KERN_WARNING "isdn_net: Incoming call without CPN, assuming '0'\n");
|
| 2178 |
|
|
eaz = "0";
|
| 2179 |
|
|
} else
|
| 2180 |
|
|
eaz = setup->eazmsn;
|
| 2181 |
|
|
if (dev->net_verbose > 1)
|
| 2182 |
|
|
printk(KERN_INFO "isdn_net: call from %s,%d,%d -> %s\n", nr, si1, si2, eaz);
|
| 2183 |
|
|
/* Accept DATA and VOICE calls at this stage
|
| 2184 |
|
|
local eaz is checked later for allowed call types */
|
| 2185 |
|
|
if ((si1 != 7) && (si1 != 1)) {
|
| 2186 |
|
|
restore_flags(flags);
|
| 2187 |
|
|
if (dev->net_verbose > 1)
|
| 2188 |
|
|
printk(KERN_INFO "isdn_net: Service-Indicator not 1 or 7, ignored\n");
|
| 2189 |
|
|
return 0;
|
| 2190 |
|
|
}
|
| 2191 |
|
|
|
| 2192 |
|
|
n = (isdn_net_phone *) 0;
|
| 2193 |
|
|
p = dev->netdev;
|
| 2194 |
|
|
ematch = wret = swapped = 0;
|
| 2195 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2196 |
|
|
printk(KERN_DEBUG "n_fi: di=%d ch=%d idx=%d usg=%d\n", di, ch, idx,
|
| 2197 |
|
|
dev->usage[idx]);
|
| 2198 |
|
|
#endif
|
| 2199 |
|
|
while (p) {
|
| 2200 |
|
|
int matchret;
|
| 2201 |
|
|
isdn_net_local *lp = p->local;
|
| 2202 |
|
|
|
| 2203 |
|
|
/* If last check has triggered as binding-swap, revert it */
|
| 2204 |
|
|
switch (swapped) {
|
| 2205 |
|
|
case 2:
|
| 2206 |
|
|
isdn_net_swap_usage(idx, sidx);
|
| 2207 |
|
|
/* fall through */
|
| 2208 |
|
|
case 1:
|
| 2209 |
|
|
isdn_net_swapbind(di);
|
| 2210 |
|
|
break;
|
| 2211 |
|
|
}
|
| 2212 |
|
|
swapped = 0;
|
| 2213 |
|
|
/* check acceptable call types for DOV */
|
| 2214 |
|
|
my_eaz = isdn_map_eaz2msn(lp->msn, di);
|
| 2215 |
|
|
if (si1 == 1) { /* it's a DOV call, check if we allow it */
|
| 2216 |
|
|
if (*my_eaz == 'v' || *my_eaz == 'V' ||
|
| 2217 |
|
|
*my_eaz == 'b' || *my_eaz == 'B')
|
| 2218 |
|
|
my_eaz++; /* skip to allow a match */
|
| 2219 |
|
|
else
|
| 2220 |
|
|
my_eaz = 0; /* force non match */
|
| 2221 |
|
|
} else { /* it's a DATA call, check if we allow it */
|
| 2222 |
|
|
if (*my_eaz == 'b' || *my_eaz == 'B')
|
| 2223 |
|
|
my_eaz++; /* skip to allow a match */
|
| 2224 |
|
|
}
|
| 2225 |
|
|
if (my_eaz)
|
| 2226 |
|
|
matchret = isdn_msncmp(eaz, my_eaz);
|
| 2227 |
|
|
else
|
| 2228 |
|
|
matchret = 1;
|
| 2229 |
|
|
if (!matchret)
|
| 2230 |
|
|
ematch = 1;
|
| 2231 |
|
|
|
| 2232 |
|
|
/* Remember if more numbers eventually can match */
|
| 2233 |
|
|
if (matchret > wret)
|
| 2234 |
|
|
wret = matchret;
|
| 2235 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2236 |
|
|
printk(KERN_DEBUG "n_fi: if='%s', l.msn=%s, l.flags=%d, l.dstate=%d\n",
|
| 2237 |
|
|
lp->name, lp->msn, lp->flags, lp->dialstate);
|
| 2238 |
|
|
#endif
|
| 2239 |
|
|
if ((!matchret) && /* EAZ is matching */
|
| 2240 |
|
|
(((!(lp->flags & ISDN_NET_CONNECTED)) && /* but not connected */
|
| 2241 |
|
|
(USG_NONE(dev->usage[idx]))) || /* and ch. unused or */
|
| 2242 |
|
|
((((lp->dialstate == 4) || (lp->dialstate == 12)) && /* if dialing */
|
| 2243 |
|
|
(!(lp->flags & ISDN_NET_CALLBACK))) /* but no callback */
|
| 2244 |
|
|
)))
|
| 2245 |
|
|
{
|
| 2246 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2247 |
|
|
printk(KERN_DEBUG "n_fi: match1, pdev=%d pch=%d\n",
|
| 2248 |
|
|
lp->pre_device, lp->pre_channel);
|
| 2249 |
|
|
#endif
|
| 2250 |
|
|
if (dev->usage[idx] & ISDN_USAGE_EXCLUSIVE) {
|
| 2251 |
|
|
if ((lp->pre_channel != ch) ||
|
| 2252 |
|
|
(lp->pre_device != di)) {
|
| 2253 |
|
|
/* Here we got a problem:
|
| 2254 |
|
|
* If using an ICN-Card, an incoming call is always signaled on
|
| 2255 |
|
|
* on the first channel of the card, if both channels are
|
| 2256 |
|
|
* down. However this channel may be bound exclusive. If the
|
| 2257 |
|
|
* second channel is free, this call should be accepted.
|
| 2258 |
|
|
* The solution is horribly but it runs, so what:
|
| 2259 |
|
|
* We exchange the exclusive bindings of the two channels, the
|
| 2260 |
|
|
* corresponding variables in the interface-structs.
|
| 2261 |
|
|
*/
|
| 2262 |
|
|
if (ch == 0) {
|
| 2263 |
|
|
sidx = isdn_dc2minor(di, 1);
|
| 2264 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2265 |
|
|
printk(KERN_DEBUG "n_fi: ch is 0\n");
|
| 2266 |
|
|
#endif
|
| 2267 |
|
|
if (USG_NONE(dev->usage[sidx])) {
|
| 2268 |
|
|
/* Second Channel is free, now see if it is bound
|
| 2269 |
|
|
* exclusive too. */
|
| 2270 |
|
|
if (dev->usage[sidx] & ISDN_USAGE_EXCLUSIVE) {
|
| 2271 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2272 |
|
|
printk(KERN_DEBUG "n_fi: 2nd channel is down and bound\n");
|
| 2273 |
|
|
#endif
|
| 2274 |
|
|
/* Yes, swap bindings only, if the original
|
| 2275 |
|
|
* binding is bound to channel 1 of this driver */
|
| 2276 |
|
|
if ((lp->pre_device == di) &&
|
| 2277 |
|
|
(lp->pre_channel == 1)) {
|
| 2278 |
|
|
isdn_net_swapbind(di);
|
| 2279 |
|
|
swapped = 1;
|
| 2280 |
|
|
} else {
|
| 2281 |
|
|
/* ... else iterate next device */
|
| 2282 |
|
|
p = (isdn_net_dev *) p->next;
|
| 2283 |
|
|
continue;
|
| 2284 |
|
|
}
|
| 2285 |
|
|
} else {
|
| 2286 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2287 |
|
|
printk(KERN_DEBUG "n_fi: 2nd channel is down and unbound\n");
|
| 2288 |
|
|
#endif
|
| 2289 |
|
|
/* No, swap always and swap excl-usage also */
|
| 2290 |
|
|
isdn_net_swap_usage(idx, sidx);
|
| 2291 |
|
|
isdn_net_swapbind(di);
|
| 2292 |
|
|
swapped = 2;
|
| 2293 |
|
|
}
|
| 2294 |
|
|
/* Now check for exclusive binding again */
|
| 2295 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2296 |
|
|
printk(KERN_DEBUG "n_fi: final check\n");
|
| 2297 |
|
|
#endif
|
| 2298 |
|
|
if ((dev->usage[idx] & ISDN_USAGE_EXCLUSIVE) &&
|
| 2299 |
|
|
((lp->pre_channel != ch) ||
|
| 2300 |
|
|
(lp->pre_device != di))) {
|
| 2301 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2302 |
|
|
printk(KERN_DEBUG "n_fi: final check failed\n");
|
| 2303 |
|
|
#endif
|
| 2304 |
|
|
p = (isdn_net_dev *) p->next;
|
| 2305 |
|
|
continue;
|
| 2306 |
|
|
}
|
| 2307 |
|
|
}
|
| 2308 |
|
|
} else {
|
| 2309 |
|
|
/* We are already on the second channel, so nothing to do */
|
| 2310 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2311 |
|
|
printk(KERN_DEBUG "n_fi: already on 2nd channel\n");
|
| 2312 |
|
|
#endif
|
| 2313 |
|
|
}
|
| 2314 |
|
|
}
|
| 2315 |
|
|
}
|
| 2316 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2317 |
|
|
printk(KERN_DEBUG "n_fi: match2\n");
|
| 2318 |
|
|
#endif
|
| 2319 |
|
|
n = lp->phone[0];
|
| 2320 |
|
|
if (lp->flags & ISDN_NET_SECURE) {
|
| 2321 |
|
|
while (n) {
|
| 2322 |
|
|
if (!isdn_msncmp(nr, n->num))
|
| 2323 |
|
|
break;
|
| 2324 |
|
|
n = (isdn_net_phone *) n->next;
|
| 2325 |
|
|
}
|
| 2326 |
|
|
}
|
| 2327 |
|
|
if (n || (!(lp->flags & ISDN_NET_SECURE))) {
|
| 2328 |
|
|
#ifdef ISDN_DEBUG_NET_ICALL
|
| 2329 |
|
|
printk(KERN_DEBUG "n_fi: match3\n");
|
| 2330 |
|
|
#endif
|
| 2331 |
|
|
/* matching interface found */
|
| 2332 |
|
|
|
| 2333 |
|
|
/*
|
| 2334 |
|
|
* Is the state STOPPED?
|
| 2335 |
|
|
* If so, no dialin is allowed,
|
| 2336 |
|
|
* so reject actively.
|
| 2337 |
|
|
* */
|
| 2338 |
|
|
if (ISDN_NET_DIALMODE(*lp) == ISDN_NET_DM_OFF) {
|
| 2339 |
|
|
restore_flags(flags);
|
| 2340 |
|
|
printk(KERN_INFO "incoming call, interface %s `stopped' -> rejected\n",
|
| 2341 |
|
|
lp->name);
|
| 2342 |
|
|
return 3;
|
| 2343 |
|
|
}
|
| 2344 |
|
|
/*
|
| 2345 |
|
|
* Is the interface up?
|
| 2346 |
|
|
* If not, reject the call actively.
|
| 2347 |
|
|
*/
|
| 2348 |
|
|
if (!isdn_net_device_started(p)) {
|
| 2349 |
|
|
restore_flags(flags);
|
| 2350 |
|
|
printk(KERN_INFO "%s: incoming call, interface down -> rejected\n",
|
| 2351 |
|
|
lp->name);
|
| 2352 |
|
|
return 3;
|
| 2353 |
|
|
}
|
| 2354 |
|
|
/* Interface is up, now see if it's a slave. If so, see if
|
| 2355 |
|
|
* it's master and parent slave is online. If not, reject the call.
|
| 2356 |
|
|
*/
|
| 2357 |
|
|
if (lp->master) {
|
| 2358 |
|
|
isdn_net_local *mlp = (isdn_net_local *) lp->master->priv;
|
| 2359 |
|
|
printk(KERN_DEBUG "ICALLslv: %s\n", lp->name);
|
| 2360 |
|
|
printk(KERN_DEBUG "master=%s\n", mlp->name);
|
| 2361 |
|
|
if (mlp->flags & ISDN_NET_CONNECTED) {
|
| 2362 |
|
|
printk(KERN_DEBUG "master online\n");
|
| 2363 |
|
|
/* Master is online, find parent-slave (master if first slave) */
|
| 2364 |
|
|
while (mlp->slave) {
|
| 2365 |
|
|
if ((isdn_net_local *) mlp->slave->priv == lp)
|
| 2366 |
|
|
break;
|
| 2367 |
|
|
mlp = (isdn_net_local *) mlp->slave->priv;
|
| 2368 |
|
|
}
|
| 2369 |
|
|
} else
|
| 2370 |
|
|
printk(KERN_DEBUG "master offline\n");
|
| 2371 |
|
|
/* Found parent, if it's offline iterate next device */
|
| 2372 |
|
|
printk(KERN_DEBUG "mlpf: %d\n", mlp->flags & ISDN_NET_CONNECTED);
|
| 2373 |
|
|
if (!(mlp->flags & ISDN_NET_CONNECTED)) {
|
| 2374 |
|
|
p = (isdn_net_dev *) p->next;
|
| 2375 |
|
|
continue;
|
| 2376 |
|
|
}
|
| 2377 |
|
|
}
|
| 2378 |
|
|
if (lp->flags & ISDN_NET_CALLBACK) {
|
| 2379 |
|
|
int chi;
|
| 2380 |
|
|
/*
|
| 2381 |
|
|
* Is the state MANUAL?
|
| 2382 |
|
|
* If so, no callback can be made,
|
| 2383 |
|
|
* so reject actively.
|
| 2384 |
|
|
* */
|
| 2385 |
|
|
if (ISDN_NET_DIALMODE(*lp) == ISDN_NET_DM_OFF) {
|
| 2386 |
|
|
restore_flags(flags);
|
| 2387 |
|
|
printk(KERN_INFO "incoming call for callback, interface %s `off' -> rejected\n",
|
| 2388 |
|
|
lp->name);
|
| 2389 |
|
|
return 3;
|
| 2390 |
|
|
}
|
| 2391 |
|
|
printk(KERN_DEBUG "%s: call from %s -> %s, start callback\n",
|
| 2392 |
|
|
lp->name, nr, eaz);
|
| 2393 |
|
|
if (lp->phone[1]) {
|
| 2394 |
|
|
/* Grab a free ISDN-Channel */
|
| 2395 |
|
|
if ((chi =
|
| 2396 |
|
|
isdn_get_free_channel(
|
| 2397 |
|
|
ISDN_USAGE_NET,
|
| 2398 |
|
|
lp->l2_proto,
|
| 2399 |
|
|
lp->l3_proto,
|
| 2400 |
|
|
lp->pre_device,
|
| 2401 |
|
|
lp->pre_channel,
|
| 2402 |
|
|
lp->msn)
|
| 2403 |
|
|
) < 0) {
|
| 2404 |
|
|
|
| 2405 |
|
|
printk(KERN_WARNING "isdn_net_find_icall: No channel for %s\n", lp->name);
|
| 2406 |
|
|
restore_flags(flags);
|
| 2407 |
|
|
return 0;
|
| 2408 |
|
|
}
|
| 2409 |
|
|
/* Setup dialstate. */
|
| 2410 |
|
|
lp->dtimer = 0;
|
| 2411 |
|
|
lp->dialstate = 11;
|
| 2412 |
|
|
/* Connect interface with channel */
|
| 2413 |
|
|
isdn_net_bind_channel(lp, chi);
|
| 2414 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 2415 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP)
|
| 2416 |
|
|
if (isdn_ppp_bind(lp) < 0) {
|
| 2417 |
|
|
isdn_net_unbind_channel(lp);
|
| 2418 |
|
|
restore_flags(flags);
|
| 2419 |
|
|
return 0;
|
| 2420 |
|
|
}
|
| 2421 |
|
|
#endif
|
| 2422 |
|
|
/* Initiate dialing by returning 2 or 4 */
|
| 2423 |
|
|
restore_flags(flags);
|
| 2424 |
|
|
return (lp->flags & ISDN_NET_CBHUP) ? 2 : 4;
|
| 2425 |
|
|
} else
|
| 2426 |
|
|
printk(KERN_WARNING "isdn_net: %s: No phone number\n", lp->name);
|
| 2427 |
|
|
restore_flags(flags);
|
| 2428 |
|
|
return 0;
|
| 2429 |
|
|
} else {
|
| 2430 |
|
|
printk(KERN_DEBUG "%s: call from %s -> %s accepted\n", lp->name, nr,
|
| 2431 |
|
|
eaz);
|
| 2432 |
|
|
/* if this interface is dialing, it does it probably on a different
|
| 2433 |
|
|
device, so free this device */
|
| 2434 |
|
|
if ((lp->dialstate == 4) || (lp->dialstate == 12)) {
|
| 2435 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 2436 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP)
|
| 2437 |
|
|
isdn_ppp_free(lp);
|
| 2438 |
|
|
#endif
|
| 2439 |
|
|
isdn_net_lp_disconnected(lp);
|
| 2440 |
|
|
isdn_free_channel(lp->isdn_device, lp->isdn_channel,
|
| 2441 |
|
|
ISDN_USAGE_NET);
|
| 2442 |
|
|
}
|
| 2443 |
|
|
dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE;
|
| 2444 |
|
|
dev->usage[idx] |= ISDN_USAGE_NET;
|
| 2445 |
|
|
strcpy(dev->num[idx], nr);
|
| 2446 |
|
|
isdn_info_update();
|
| 2447 |
|
|
dev->st_netdev[idx] = lp->netdev;
|
| 2448 |
|
|
lp->isdn_device = di;
|
| 2449 |
|
|
lp->isdn_channel = ch;
|
| 2450 |
|
|
lp->ppp_slot = -1;
|
| 2451 |
|
|
lp->flags |= ISDN_NET_CONNECTED;
|
| 2452 |
|
|
lp->dialstate = 7;
|
| 2453 |
|
|
lp->dtimer = 0;
|
| 2454 |
|
|
lp->outgoing = 0;
|
| 2455 |
|
|
lp->huptimer = 0;
|
| 2456 |
|
|
lp->hupflags |= ISDN_WAITCHARGE;
|
| 2457 |
|
|
lp->hupflags &= ~ISDN_HAVECHARGE;
|
| 2458 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 2459 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP)
|
| 2460 |
|
|
if (isdn_ppp_bind(lp) < 0) {
|
| 2461 |
|
|
isdn_net_unbind_channel(lp);
|
| 2462 |
|
|
restore_flags(flags);
|
| 2463 |
|
|
return 0;
|
| 2464 |
|
|
}
|
| 2465 |
|
|
#endif
|
| 2466 |
|
|
restore_flags(flags);
|
| 2467 |
|
|
return 1;
|
| 2468 |
|
|
}
|
| 2469 |
|
|
}
|
| 2470 |
|
|
}
|
| 2471 |
|
|
p = (isdn_net_dev *) p->next;
|
| 2472 |
|
|
}
|
| 2473 |
|
|
/* If none of configured EAZ/MSN matched and not verbose, be silent */
|
| 2474 |
|
|
if (!ematch || dev->net_verbose)
|
| 2475 |
|
|
printk(KERN_INFO "isdn_net: call from %s -> %d %s ignored\n", nr, di, eaz);
|
| 2476 |
|
|
restore_flags(flags);
|
| 2477 |
|
|
return (wret == 2)?5:0;
|
| 2478 |
|
|
}
|
| 2479 |
|
|
|
| 2480 |
|
|
/*
|
| 2481 |
|
|
* Search list of net-interfaces for an interface with given name.
|
| 2482 |
|
|
*/
|
| 2483 |
|
|
isdn_net_dev *
|
| 2484 |
|
|
isdn_net_findif(char *name)
|
| 2485 |
|
|
{
|
| 2486 |
|
|
isdn_net_dev *p = dev->netdev;
|
| 2487 |
|
|
|
| 2488 |
|
|
while (p) {
|
| 2489 |
|
|
if (!strcmp(p->local->name, name))
|
| 2490 |
|
|
return p;
|
| 2491 |
|
|
p = (isdn_net_dev *) p->next;
|
| 2492 |
|
|
}
|
| 2493 |
|
|
return (isdn_net_dev *) NULL;
|
| 2494 |
|
|
}
|
| 2495 |
|
|
|
| 2496 |
|
|
/*
|
| 2497 |
|
|
* Force a net-interface to dial out.
|
| 2498 |
|
|
* This is called from the userlevel-routine below or
|
| 2499 |
|
|
* from isdn_net_start_xmit().
|
| 2500 |
|
|
*/
|
| 2501 |
|
|
int
|
| 2502 |
|
|
isdn_net_force_dial_lp(isdn_net_local * lp)
|
| 2503 |
|
|
{
|
| 2504 |
|
|
if ((!(lp->flags & ISDN_NET_CONNECTED)) && !lp->dialstate) {
|
| 2505 |
|
|
int chi;
|
| 2506 |
|
|
if (lp->phone[1]) {
|
| 2507 |
|
|
ulong flags;
|
| 2508 |
|
|
save_flags(flags);
|
| 2509 |
|
|
cli();
|
| 2510 |
|
|
|
| 2511 |
|
|
/* Grab a free ISDN-Channel */
|
| 2512 |
|
|
if ((chi =
|
| 2513 |
|
|
isdn_get_free_channel(
|
| 2514 |
|
|
ISDN_USAGE_NET,
|
| 2515 |
|
|
lp->l2_proto,
|
| 2516 |
|
|
lp->l3_proto,
|
| 2517 |
|
|
lp->pre_device,
|
| 2518 |
|
|
lp->pre_channel,
|
| 2519 |
|
|
lp->msn)
|
| 2520 |
|
|
) < 0) {
|
| 2521 |
|
|
printk(KERN_WARNING "isdn_net_force_dial: No channel for %s\n", lp->name);
|
| 2522 |
|
|
restore_flags(flags);
|
| 2523 |
|
|
return -EAGAIN;
|
| 2524 |
|
|
}
|
| 2525 |
|
|
lp->dialstate = 1;
|
| 2526 |
|
|
/* Connect interface with channel */
|
| 2527 |
|
|
isdn_net_bind_channel(lp, chi);
|
| 2528 |
|
|
#ifdef CONFIG_ISDN_PPP
|
| 2529 |
|
|
if (lp->p_encap == ISDN_NET_ENCAP_SYNCPPP)
|
| 2530 |
|
|
if (isdn_ppp_bind(lp) < 0) {
|
| 2531 |
|
|
isdn_net_unbind_channel(lp);
|
| 2532 |
|
|
restore_flags(flags);
|
| 2533 |
|
|
return -EAGAIN;
|
| 2534 |
|
|
}
|
| 2535 |
|
|
#endif
|
| 2536 |
|
|
/* Initiate dialing */
|
| 2537 |
|
|
restore_flags(flags);
|
| 2538 |
|
|
isdn_net_dial();
|
| 2539 |
|
|
return 0;
|
| 2540 |
|
|
} else
|
| 2541 |
|
|
return -EINVAL;
|
| 2542 |
|
|
} else
|
| 2543 |
|
|
return -EBUSY;
|
| 2544 |
|
|
}
|
| 2545 |
|
|
|
| 2546 |
|
|
/*
|
| 2547 |
|
|
* This is called from certain upper protocol layers (multilink ppp
|
| 2548 |
|
|
* and x25iface encapsulation module) that want to initiate dialing
|
| 2549 |
|
|
* themselves.
|
| 2550 |
|
|
*/
|
| 2551 |
|
|
int
|
| 2552 |
|
|
isdn_net_dial_req(isdn_net_local * lp)
|
| 2553 |
|
|
{
|
| 2554 |
|
|
/* is there a better error code? */
|
| 2555 |
|
|
if (!(ISDN_NET_DIALMODE(*lp) == ISDN_NET_DM_AUTO)) return -EBUSY;
|
| 2556 |
|
|
|
| 2557 |
|
|
return isdn_net_force_dial_lp(lp);
|
| 2558 |
|
|
}
|
| 2559 |
|
|
|
| 2560 |
|
|
/*
|
| 2561 |
|
|
* Force a net-interface to dial out.
|
| 2562 |
|
|
* This is always called from within userspace (ISDN_IOCTL_NET_DIAL).
|
| 2563 |
|
|
*/
|
| 2564 |
|
|
int
|
| 2565 |
|
|
isdn_net_force_dial(char *name)
|
| 2566 |
|
|
{
|
| 2567 |
|
|
isdn_net_dev *p = isdn_net_findif(name);
|
| 2568 |
|
|
|
| 2569 |
|
|
if (!p)
|
| 2570 |
|
|
return -ENODEV;
|
| 2571 |
|
|
return (isdn_net_force_dial_lp(p->local));
|
| 2572 |
|
|
}
|
| 2573 |
|
|
|
| 2574 |
|
|
/*
|
| 2575 |
|
|
* Allocate a new network-interface and initialize its data structures.
|
| 2576 |
|
|
*/
|
| 2577 |
|
|
char *
|
| 2578 |
|
|
isdn_net_new(char *name, struct net_device *master)
|
| 2579 |
|
|
{
|
| 2580 |
|
|
isdn_net_dev *netdev;
|
| 2581 |
|
|
|
| 2582 |
|
|
/* Avoid creating an existing interface */
|
| 2583 |
|
|
if (isdn_net_findif(name)) {
|
| 2584 |
|
|
printk(KERN_WARNING "isdn_net: interface %s already exists\n", name);
|
| 2585 |
|
|
return NULL;
|
| 2586 |
|
|
}
|
| 2587 |
|
|
if (!(netdev = (isdn_net_dev *) kmalloc(sizeof(isdn_net_dev), GFP_KERNEL))) {
|
| 2588 |
|
|
printk(KERN_WARNING "isdn_net: Could not allocate net-device\n");
|
| 2589 |
|
|
return NULL;
|
| 2590 |
|
|
}
|
| 2591 |
|
|
memset(netdev, 0, sizeof(isdn_net_dev));
|
| 2592 |
|
|
if (!(netdev->local = (isdn_net_local *) kmalloc(sizeof(isdn_net_local), GFP_KERNEL))) {
|
| 2593 |
|
|
printk(KERN_WARNING "isdn_net: Could not allocate device locals\n");
|
| 2594 |
|
|
kfree(netdev);
|
| 2595 |
|
|
return NULL;
|
| 2596 |
|
|
}
|
| 2597 |
|
|
memset(netdev->local, 0, sizeof(isdn_net_local));
|
| 2598 |
|
|
if (name == NULL)
|
| 2599 |
|
|
strcpy(netdev->local->name, " ");
|
| 2600 |
|
|
else
|
| 2601 |
|
|
strcpy(netdev->local->name, name);
|
| 2602 |
|
|
strcpy(netdev->dev.name, netdev->local->name);
|
| 2603 |
|
|
netdev->dev.priv = netdev->local;
|
| 2604 |
|
|
netdev->dev.init = isdn_net_init;
|
| 2605 |
|
|
netdev->local->p_encap = ISDN_NET_ENCAP_RAWIP;
|
| 2606 |
|
|
if (master) {
|
| 2607 |
|
|
/* Device shall be a slave */
|
| 2608 |
|
|
struct net_device *p = (((isdn_net_local *) master->priv)->slave);
|
| 2609 |
|
|
struct net_device *q = master;
|
| 2610 |
|
|
|
| 2611 |
|
|
netdev->local->master = master;
|
| 2612 |
|
|
/* Put device at end of slave-chain */
|
| 2613 |
|
|
while (p) {
|
| 2614 |
|
|
q = p;
|
| 2615 |
|
|
p = (((isdn_net_local *) p->priv)->slave);
|
| 2616 |
|
|
}
|
| 2617 |
|
|
((isdn_net_local *) q->priv)->slave = &(netdev->dev);
|
| 2618 |
|
|
} else {
|
| 2619 |
|
|
/* Device shall be a master */
|
| 2620 |
|
|
/*
|
| 2621 |
|
|
* Watchdog timer (currently) for master only.
|
| 2622 |
|
|
*/
|
| 2623 |
|
|
netdev->dev.tx_timeout = isdn_net_tx_timeout;
|
| 2624 |
|
|
netdev->dev.watchdog_timeo = ISDN_NET_TX_TIMEOUT;
|
| 2625 |
|
|
if (register_netdev(&netdev->dev) != 0) {
|
| 2626 |
|
|
printk(KERN_WARNING "isdn_net: Could not register net-device\n");
|
| 2627 |
|
|
kfree(netdev->local);
|
| 2628 |
|
|
kfree(netdev);
|
| 2629 |
|
|
return NULL;
|
| 2630 |
|
|
}
|
| 2631 |
|
|
}
|
| 2632 |
|
|
netdev->local->magic = ISDN_NET_MAGIC;
|
| 2633 |
|
|
|
| 2634 |
|
|
netdev->queue = netdev->local;
|
| 2635 |
|
|
spin_lock_init(&netdev->queue_lock);
|
| 2636 |
|
|
|
| 2637 |
|
|
netdev->local->last = netdev->local;
|
| 2638 |
|
|
netdev->local->netdev = netdev;
|
| 2639 |
|
|
netdev->local->next = netdev->local;
|
| 2640 |
|
|
|
| 2641 |
|
|
netdev->local->tqueue.sync = 0;
|
| 2642 |
|
|
netdev->local->tqueue.routine = isdn_net_softint;
|
| 2643 |
|
|
netdev->local->tqueue.data = netdev->local;
|
| 2644 |
|
|
spin_lock_init(&netdev->local->xmit_lock);
|
| 2645 |
|
|
|
| 2646 |
|
|
netdev->local->isdn_device = -1;
|
| 2647 |
|
|
netdev->local->isdn_channel = -1;
|
| 2648 |
|
|
netdev->local->pre_device = -1;
|
| 2649 |
|
|
netdev->local->pre_channel = -1;
|
| 2650 |
|
|
netdev->local->exclusive = -1;
|
| 2651 |
|
|
netdev->local->ppp_slot = -1;
|
| 2652 |
|
|
netdev->local->pppbind = -1;
|
| 2653 |
|
|
skb_queue_head_init(&netdev->local->super_tx_queue);
|
| 2654 |
|
|
netdev->local->l2_proto = ISDN_PROTO_L2_X75I;
|
| 2655 |
|
|
netdev->local->l3_proto = ISDN_PROTO_L3_TRANS;
|
| 2656 |
|
|
netdev->local->triggercps = 6000;
|
| 2657 |
|
|
netdev->local->slavedelay = 10 * HZ;
|
| 2658 |
|
|
netdev->local->hupflags = ISDN_INHUP; /* Do hangup even on incoming calls */
|
| 2659 |
|
|
netdev->local->onhtime = 10; /* Default hangup-time for saving costs
|
| 2660 |
|
|
of those who forget configuring this */
|
| 2661 |
|
|
netdev->local->dialmax = 1;
|
| 2662 |
|
|
netdev->local->flags = ISDN_NET_CBHUP | ISDN_NET_DM_MANUAL; /* Hangup before Callback, manual dial */
|
| 2663 |
|
|
netdev->local->cbdelay = 25; /* Wait 5 secs before Callback */
|
| 2664 |
|
|
netdev->local->dialtimeout = -1; /* Infinite Dial-Timeout */
|
| 2665 |
|
|
netdev->local->dialwait = 5 * HZ; /* Wait 5 sec. after failed dial */
|
| 2666 |
|
|
netdev->local->dialstarted = 0; /* Jiffies of last dial-start */
|
| 2667 |
|
|
netdev->local->dialwait_timer = 0; /* Jiffies of earliest next dial-start */
|
| 2668 |
|
|
|
| 2669 |
|
|
/* Put into to netdev-chain */
|
| 2670 |
|
|
netdev->next = (void *) dev->netdev;
|
| 2671 |
|
|
dev->netdev = netdev;
|
| 2672 |
|
|
return netdev->dev.name;
|
| 2673 |
|
|
}
|
| 2674 |
|
|
|
| 2675 |
|
|
char *
|
| 2676 |
|
|
isdn_net_newslave(char *parm)
|
| 2677 |
|
|
{
|
| 2678 |
|
|
char *p = strchr(parm, ',');
|
| 2679 |
|
|
isdn_net_dev *n;
|
| 2680 |
|
|
char newname[10];
|
| 2681 |
|
|
|
| 2682 |
|
|
if (p) {
|
| 2683 |
|
|
/* Slave-Name MUST not be empty */
|
| 2684 |
|
|
if (!strlen(p + 1))
|
| 2685 |
|
|
return NULL;
|
| 2686 |
|
|
strcpy(newname, p + 1);
|
| 2687 |
|
|
*p = 0;
|
| 2688 |
|
|
/* Master must already exist */
|
| 2689 |
|
|
if (!(n = isdn_net_findif(parm)))
|
| 2690 |
|
|
return NULL;
|
| 2691 |
|
|
/* Master must be a real interface, not a slave */
|
| 2692 |
|
|
if (n->local->master)
|
| 2693 |
|
|
return NULL;
|
| 2694 |
|
|
/* Master must not be started yet */
|
| 2695 |
|
|
if (isdn_net_device_started(n))
|
| 2696 |
|
|
return NULL;
|
| 2697 |
|
|
return (isdn_net_new(newname, &(n->dev)));
|
| 2698 |
|
|
}
|
| 2699 |
|
|
return NULL;
|
| 2700 |
|
|
}
|
| 2701 |
|
|
|
| 2702 |
|
|
/*
|
| 2703 |
|
|
* Set interface-parameters.
|
| 2704 |
|
|
* Always set all parameters, so the user-level application is responsible
|
| 2705 |
|
|
* for not overwriting existing setups. It has to get the current
|
| 2706 |
|
|
* setup first, if only selected parameters are to be changed.
|
| 2707 |
|
|
*/
|
| 2708 |
|
|
int
|
| 2709 |
|
|
isdn_net_setcfg(isdn_net_ioctl_cfg * cfg)
|
| 2710 |
|
|
{
|
| 2711 |
|
|
isdn_net_dev *p = isdn_net_findif(cfg->name);
|
| 2712 |
|
|
ulong features;
|
| 2713 |
|
|
int i;
|
| 2714 |
|
|
int drvidx;
|
| 2715 |
|
|
int chidx;
|
| 2716 |
|
|
char drvid[25];
|
| 2717 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 2718 |
|
|
ulong flags;
|
| 2719 |
|
|
#endif
|
| 2720 |
|
|
if (p) {
|
| 2721 |
|
|
isdn_net_local *lp = p->local;
|
| 2722 |
|
|
|
| 2723 |
|
|
/* See if any registered driver supports the features we want */
|
| 2724 |
|
|
features = ((1 << cfg->l2_proto) << ISDN_FEATURE_L2_SHIFT) |
|
| 2725 |
|
|
((1 << cfg->l3_proto) << ISDN_FEATURE_L3_SHIFT);
|
| 2726 |
|
|
for (i = 0; i < ISDN_MAX_DRIVERS; i++)
|
| 2727 |
|
|
if (dev->drv[i])
|
| 2728 |
|
|
if ((dev->drv[i]->interface->features & features) == features)
|
| 2729 |
|
|
break;
|
| 2730 |
|
|
if (i == ISDN_MAX_DRIVERS) {
|
| 2731 |
|
|
printk(KERN_WARNING "isdn_net: No driver with selected features\n");
|
| 2732 |
|
|
return -ENODEV;
|
| 2733 |
|
|
}
|
| 2734 |
|
|
if (lp->p_encap != cfg->p_encap){
|
| 2735 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 2736 |
|
|
struct concap_proto * cprot = p -> cprot;
|
| 2737 |
|
|
#endif
|
| 2738 |
|
|
if (isdn_net_device_started(p)) {
|
| 2739 |
|
|
printk(KERN_WARNING "%s: cannot change encap when if is up\n",
|
| 2740 |
|
|
lp->name);
|
| 2741 |
|
|
return -EBUSY;
|
| 2742 |
|
|
}
|
| 2743 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 2744 |
|
|
/* delete old encapsulation protocol if present ... */
|
| 2745 |
|
|
save_flags(flags);
|
| 2746 |
|
|
cli(); /* avoid races with incoming events trying to
|
| 2747 |
|
|
call cprot->pops methods */
|
| 2748 |
|
|
if( cprot && cprot -> pops )
|
| 2749 |
|
|
cprot -> pops -> proto_del ( cprot );
|
| 2750 |
|
|
p -> cprot = NULL;
|
| 2751 |
|
|
lp -> dops = NULL;
|
| 2752 |
|
|
restore_flags(flags);
|
| 2753 |
|
|
/* ... , prepare for configuration of new one ... */
|
| 2754 |
|
|
switch ( cfg -> p_encap ){
|
| 2755 |
|
|
case ISDN_NET_ENCAP_X25IFACE:
|
| 2756 |
|
|
lp -> dops = &isdn_concap_reliable_dl_dops;
|
| 2757 |
|
|
}
|
| 2758 |
|
|
/* ... and allocate new one ... */
|
| 2759 |
|
|
p -> cprot = isdn_concap_new( cfg -> p_encap );
|
| 2760 |
|
|
/* p -> cprot == NULL now if p_encap is not supported
|
| 2761 |
|
|
by means of the concap_proto mechanism */
|
| 2762 |
|
|
/* the protocol is not configured yet; this will
|
| 2763 |
|
|
happen later when isdn_net_reset() is called */
|
| 2764 |
|
|
#endif
|
| 2765 |
|
|
}
|
| 2766 |
|
|
switch ( cfg->p_encap ) {
|
| 2767 |
|
|
case ISDN_NET_ENCAP_SYNCPPP:
|
| 2768 |
|
|
#ifndef CONFIG_ISDN_PPP
|
| 2769 |
|
|
printk(KERN_WARNING "%s: SyncPPP support not configured\n",
|
| 2770 |
|
|
lp->name);
|
| 2771 |
|
|
return -EINVAL;
|
| 2772 |
|
|
#else
|
| 2773 |
|
|
p->dev.type = ARPHRD_PPP; /* change ARP type */
|
| 2774 |
|
|
p->dev.addr_len = 0;
|
| 2775 |
|
|
p->dev.do_ioctl = isdn_ppp_dev_ioctl;
|
| 2776 |
|
|
#endif
|
| 2777 |
|
|
break;
|
| 2778 |
|
|
case ISDN_NET_ENCAP_X25IFACE:
|
| 2779 |
|
|
#ifndef CONFIG_ISDN_X25
|
| 2780 |
|
|
printk(KERN_WARNING "%s: isdn-x25 support not configured\n",
|
| 2781 |
|
|
p->local->name);
|
| 2782 |
|
|
return -EINVAL;
|
| 2783 |
|
|
#else
|
| 2784 |
|
|
p->dev.type = ARPHRD_X25; /* change ARP type */
|
| 2785 |
|
|
p->dev.addr_len = 0;
|
| 2786 |
|
|
#endif
|
| 2787 |
|
|
break;
|
| 2788 |
|
|
case ISDN_NET_ENCAP_CISCOHDLCK:
|
| 2789 |
|
|
p->dev.do_ioctl = isdn_ciscohdlck_dev_ioctl;
|
| 2790 |
|
|
break;
|
| 2791 |
|
|
default:
|
| 2792 |
|
|
if( cfg->p_encap >= 0 &&
|
| 2793 |
|
|
cfg->p_encap <= ISDN_NET_ENCAP_MAX_ENCAP )
|
| 2794 |
|
|
break;
|
| 2795 |
|
|
printk(KERN_WARNING
|
| 2796 |
|
|
"%s: encapsulation protocol %d not supported\n",
|
| 2797 |
|
|
p->local->name, cfg->p_encap);
|
| 2798 |
|
|
return -EINVAL;
|
| 2799 |
|
|
}
|
| 2800 |
|
|
if (strlen(cfg->drvid)) {
|
| 2801 |
|
|
/* A bind has been requested ... */
|
| 2802 |
|
|
char *c,
|
| 2803 |
|
|
*e;
|
| 2804 |
|
|
|
| 2805 |
|
|
drvidx = -1;
|
| 2806 |
|
|
chidx = -1;
|
| 2807 |
|
|
strcpy(drvid, cfg->drvid);
|
| 2808 |
|
|
if ((c = strchr(drvid, ','))) {
|
| 2809 |
|
|
/* The channel-number is appended to the driver-Id with a comma */
|
| 2810 |
|
|
chidx = (int) simple_strtoul(c + 1, &e, 10);
|
| 2811 |
|
|
if (e == c)
|
| 2812 |
|
|
chidx = -1;
|
| 2813 |
|
|
*c = '\0';
|
| 2814 |
|
|
}
|
| 2815 |
|
|
for (i = 0; i < ISDN_MAX_DRIVERS; i++)
|
| 2816 |
|
|
/* Lookup driver-Id in array */
|
| 2817 |
|
|
if (!(strcmp(dev->drvid[i], drvid))) {
|
| 2818 |
|
|
drvidx = i;
|
| 2819 |
|
|
break;
|
| 2820 |
|
|
}
|
| 2821 |
|
|
if ((drvidx == -1) || (chidx == -1))
|
| 2822 |
|
|
/* Either driver-Id or channel-number invalid */
|
| 2823 |
|
|
return -ENODEV;
|
| 2824 |
|
|
} else {
|
| 2825 |
|
|
/* Parameters are valid, so get them */
|
| 2826 |
|
|
drvidx = lp->pre_device;
|
| 2827 |
|
|
chidx = lp->pre_channel;
|
| 2828 |
|
|
}
|
| 2829 |
|
|
if (cfg->exclusive > 0) {
|
| 2830 |
|
|
unsigned long flags;
|
| 2831 |
|
|
|
| 2832 |
|
|
/* If binding is exclusive, try to grab the channel */
|
| 2833 |
|
|
save_flags(flags);
|
| 2834 |
|
|
cli();
|
| 2835 |
|
|
if ((i = isdn_get_free_channel(ISDN_USAGE_NET,
|
| 2836 |
|
|
lp->l2_proto, lp->l3_proto, drvidx,
|
| 2837 |
|
|
chidx, lp->msn)) < 0) {
|
| 2838 |
|
|
/* Grab failed, because desired channel is in use */
|
| 2839 |
|
|
lp->exclusive = -1;
|
| 2840 |
|
|
restore_flags(flags);
|
| 2841 |
|
|
return -EBUSY;
|
| 2842 |
|
|
}
|
| 2843 |
|
|
/* All went ok, so update isdninfo */
|
| 2844 |
|
|
dev->usage[i] = ISDN_USAGE_EXCLUSIVE;
|
| 2845 |
|
|
isdn_info_update();
|
| 2846 |
|
|
restore_flags(flags);
|
| 2847 |
|
|
lp->exclusive = i;
|
| 2848 |
|
|
} else {
|
| 2849 |
|
|
/* Non-exclusive binding or unbind. */
|
| 2850 |
|
|
lp->exclusive = -1;
|
| 2851 |
|
|
if ((lp->pre_device != -1) && (cfg->exclusive == -1)) {
|
| 2852 |
|
|
isdn_unexclusive_channel(lp->pre_device, lp->pre_channel);
|
| 2853 |
|
|
isdn_free_channel(lp->pre_device, lp->pre_channel, ISDN_USAGE_NET);
|
| 2854 |
|
|
drvidx = -1;
|
| 2855 |
|
|
chidx = -1;
|
| 2856 |
|
|
}
|
| 2857 |
|
|
}
|
| 2858 |
|
|
strcpy(lp->msn, cfg->eaz);
|
| 2859 |
|
|
lp->pre_device = drvidx;
|
| 2860 |
|
|
lp->pre_channel = chidx;
|
| 2861 |
|
|
lp->onhtime = cfg->onhtime;
|
| 2862 |
|
|
lp->charge = cfg->charge;
|
| 2863 |
|
|
lp->l2_proto = cfg->l2_proto;
|
| 2864 |
|
|
lp->l3_proto = cfg->l3_proto;
|
| 2865 |
|
|
lp->cbdelay = cfg->cbdelay;
|
| 2866 |
|
|
lp->dialmax = cfg->dialmax;
|
| 2867 |
|
|
lp->triggercps = cfg->triggercps;
|
| 2868 |
|
|
lp->slavedelay = cfg->slavedelay * HZ;
|
| 2869 |
|
|
lp->pppbind = cfg->pppbind;
|
| 2870 |
|
|
lp->dialtimeout = cfg->dialtimeout >= 0 ? cfg->dialtimeout * HZ : -1;
|
| 2871 |
|
|
lp->dialwait = cfg->dialwait * HZ;
|
| 2872 |
|
|
if (cfg->secure)
|
| 2873 |
|
|
lp->flags |= ISDN_NET_SECURE;
|
| 2874 |
|
|
else
|
| 2875 |
|
|
lp->flags &= ~ISDN_NET_SECURE;
|
| 2876 |
|
|
if (cfg->cbhup)
|
| 2877 |
|
|
lp->flags |= ISDN_NET_CBHUP;
|
| 2878 |
|
|
else
|
| 2879 |
|
|
lp->flags &= ~ISDN_NET_CBHUP;
|
| 2880 |
|
|
switch (cfg->callback) {
|
| 2881 |
|
|
case 0:
|
| 2882 |
|
|
lp->flags &= ~(ISDN_NET_CALLBACK | ISDN_NET_CBOUT);
|
| 2883 |
|
|
break;
|
| 2884 |
|
|
case 1:
|
| 2885 |
|
|
lp->flags |= ISDN_NET_CALLBACK;
|
| 2886 |
|
|
lp->flags &= ~ISDN_NET_CBOUT;
|
| 2887 |
|
|
break;
|
| 2888 |
|
|
case 2:
|
| 2889 |
|
|
lp->flags |= ISDN_NET_CBOUT;
|
| 2890 |
|
|
lp->flags &= ~ISDN_NET_CALLBACK;
|
| 2891 |
|
|
break;
|
| 2892 |
|
|
}
|
| 2893 |
|
|
lp->flags &= ~ISDN_NET_DIALMODE_MASK; /* first all bits off */
|
| 2894 |
|
|
if (cfg->dialmode && !(cfg->dialmode & ISDN_NET_DIALMODE_MASK)) {
|
| 2895 |
|
|
/* old isdnctrl version, where only 0 or 1 is given */
|
| 2896 |
|
|
printk(KERN_WARNING
|
| 2897 |
|
|
"Old isdnctrl version detected! Please update.\n");
|
| 2898 |
|
|
lp->flags |= ISDN_NET_DM_OFF; /* turn on `off' bit */
|
| 2899 |
|
|
}
|
| 2900 |
|
|
else {
|
| 2901 |
|
|
lp->flags |= cfg->dialmode; /* turn on selected bits */
|
| 2902 |
|
|
}
|
| 2903 |
|
|
if (cfg->chargehup)
|
| 2904 |
|
|
lp->hupflags |= ISDN_CHARGEHUP;
|
| 2905 |
|
|
else
|
| 2906 |
|
|
lp->hupflags &= ~ISDN_CHARGEHUP;
|
| 2907 |
|
|
if (cfg->ihup)
|
| 2908 |
|
|
lp->hupflags |= ISDN_INHUP;
|
| 2909 |
|
|
else
|
| 2910 |
|
|
lp->hupflags &= ~ISDN_INHUP;
|
| 2911 |
|
|
if (cfg->chargeint > 10) {
|
| 2912 |
|
|
lp->hupflags |= ISDN_CHARGEHUP | ISDN_HAVECHARGE | ISDN_MANCHARGE;
|
| 2913 |
|
|
lp->chargeint = cfg->chargeint * HZ;
|
| 2914 |
|
|
}
|
| 2915 |
|
|
if (cfg->p_encap != lp->p_encap) {
|
| 2916 |
|
|
if (cfg->p_encap == ISDN_NET_ENCAP_RAWIP) {
|
| 2917 |
|
|
p->dev.hard_header = NULL;
|
| 2918 |
|
|
p->dev.hard_header_cache = NULL;
|
| 2919 |
|
|
p->dev.header_cache_update = NULL;
|
| 2920 |
|
|
p->dev.flags = IFF_NOARP|IFF_POINTOPOINT;
|
| 2921 |
|
|
} else {
|
| 2922 |
|
|
p->dev.hard_header = isdn_net_header;
|
| 2923 |
|
|
if (cfg->p_encap == ISDN_NET_ENCAP_ETHER) {
|
| 2924 |
|
|
p->dev.hard_header_cache = lp->org_hhc;
|
| 2925 |
|
|
p->dev.header_cache_update = lp->org_hcu;
|
| 2926 |
|
|
p->dev.flags = IFF_BROADCAST | IFF_MULTICAST;
|
| 2927 |
|
|
} else {
|
| 2928 |
|
|
p->dev.hard_header_cache = NULL;
|
| 2929 |
|
|
p->dev.header_cache_update = NULL;
|
| 2930 |
|
|
p->dev.flags = IFF_NOARP|IFF_POINTOPOINT;
|
| 2931 |
|
|
}
|
| 2932 |
|
|
}
|
| 2933 |
|
|
}
|
| 2934 |
|
|
lp->p_encap = cfg->p_encap;
|
| 2935 |
|
|
return 0;
|
| 2936 |
|
|
}
|
| 2937 |
|
|
return -ENODEV;
|
| 2938 |
|
|
}
|
| 2939 |
|
|
|
| 2940 |
|
|
/*
|
| 2941 |
|
|
* Perform get-interface-parameters.ioctl
|
| 2942 |
|
|
*/
|
| 2943 |
|
|
int
|
| 2944 |
|
|
isdn_net_getcfg(isdn_net_ioctl_cfg * cfg)
|
| 2945 |
|
|
{
|
| 2946 |
|
|
isdn_net_dev *p = isdn_net_findif(cfg->name);
|
| 2947 |
|
|
|
| 2948 |
|
|
if (p) {
|
| 2949 |
|
|
isdn_net_local *lp = p->local;
|
| 2950 |
|
|
|
| 2951 |
|
|
strcpy(cfg->eaz, lp->msn);
|
| 2952 |
|
|
cfg->exclusive = lp->exclusive;
|
| 2953 |
|
|
if (lp->pre_device >= 0) {
|
| 2954 |
|
|
sprintf(cfg->drvid, "%s,%d", dev->drvid[lp->pre_device],
|
| 2955 |
|
|
lp->pre_channel);
|
| 2956 |
|
|
} else
|
| 2957 |
|
|
cfg->drvid[0] = '\0';
|
| 2958 |
|
|
cfg->onhtime = lp->onhtime;
|
| 2959 |
|
|
cfg->charge = lp->charge;
|
| 2960 |
|
|
cfg->l2_proto = lp->l2_proto;
|
| 2961 |
|
|
cfg->l3_proto = lp->l3_proto;
|
| 2962 |
|
|
cfg->p_encap = lp->p_encap;
|
| 2963 |
|
|
cfg->secure = (lp->flags & ISDN_NET_SECURE) ? 1 : 0;
|
| 2964 |
|
|
cfg->callback = 0;
|
| 2965 |
|
|
if (lp->flags & ISDN_NET_CALLBACK)
|
| 2966 |
|
|
cfg->callback = 1;
|
| 2967 |
|
|
if (lp->flags & ISDN_NET_CBOUT)
|
| 2968 |
|
|
cfg->callback = 2;
|
| 2969 |
|
|
cfg->cbhup = (lp->flags & ISDN_NET_CBHUP) ? 1 : 0;
|
| 2970 |
|
|
cfg->dialmode = lp->flags & ISDN_NET_DIALMODE_MASK;
|
| 2971 |
|
|
cfg->chargehup = (lp->hupflags & 4) ? 1 : 0;
|
| 2972 |
|
|
cfg->ihup = (lp->hupflags & 8) ? 1 : 0;
|
| 2973 |
|
|
cfg->cbdelay = lp->cbdelay;
|
| 2974 |
|
|
cfg->dialmax = lp->dialmax;
|
| 2975 |
|
|
cfg->triggercps = lp->triggercps;
|
| 2976 |
|
|
cfg->slavedelay = lp->slavedelay / HZ;
|
| 2977 |
|
|
cfg->chargeint = (lp->hupflags & ISDN_CHARGEHUP) ?
|
| 2978 |
|
|
(lp->chargeint / HZ) : 0;
|
| 2979 |
|
|
cfg->pppbind = lp->pppbind;
|
| 2980 |
|
|
cfg->dialtimeout = lp->dialtimeout >= 0 ? lp->dialtimeout / HZ : -1;
|
| 2981 |
|
|
cfg->dialwait = lp->dialwait / HZ;
|
| 2982 |
|
|
if (lp->slave)
|
| 2983 |
|
|
strcpy(cfg->slave, ((isdn_net_local *) lp->slave->priv)->name);
|
| 2984 |
|
|
else
|
| 2985 |
|
|
cfg->slave[0] = '\0';
|
| 2986 |
|
|
if (lp->master)
|
| 2987 |
|
|
strcpy(cfg->master, ((isdn_net_local *) lp->master->priv)->name);
|
| 2988 |
|
|
else
|
| 2989 |
|
|
cfg->master[0] = '\0';
|
| 2990 |
|
|
return 0;
|
| 2991 |
|
|
}
|
| 2992 |
|
|
return -ENODEV;
|
| 2993 |
|
|
}
|
| 2994 |
|
|
|
| 2995 |
|
|
/*
|
| 2996 |
|
|
* Add a phone-number to an interface.
|
| 2997 |
|
|
*/
|
| 2998 |
|
|
int
|
| 2999 |
|
|
isdn_net_addphone(isdn_net_ioctl_phone * phone)
|
| 3000 |
|
|
{
|
| 3001 |
|
|
isdn_net_dev *p = isdn_net_findif(phone->name);
|
| 3002 |
|
|
isdn_net_phone *n;
|
| 3003 |
|
|
|
| 3004 |
|
|
if (p) {
|
| 3005 |
|
|
if (!(n = (isdn_net_phone *) kmalloc(sizeof(isdn_net_phone), GFP_KERNEL)))
|
| 3006 |
|
|
return -ENOMEM;
|
| 3007 |
|
|
strcpy(n->num, phone->phone);
|
| 3008 |
|
|
n->next = p->local->phone[phone->outgoing & 1];
|
| 3009 |
|
|
p->local->phone[phone->outgoing & 1] = n;
|
| 3010 |
|
|
return 0;
|
| 3011 |
|
|
}
|
| 3012 |
|
|
return -ENODEV;
|
| 3013 |
|
|
}
|
| 3014 |
|
|
|
| 3015 |
|
|
/*
|
| 3016 |
|
|
* Copy a string of all phone-numbers of an interface to user space.
|
| 3017 |
|
|
* This might sleep and must be called with the isdn semaphore down.
|
| 3018 |
|
|
*/
|
| 3019 |
|
|
int
|
| 3020 |
|
|
isdn_net_getphones(isdn_net_ioctl_phone * phone, char *phones)
|
| 3021 |
|
|
{
|
| 3022 |
|
|
isdn_net_dev *p = isdn_net_findif(phone->name);
|
| 3023 |
|
|
int inout = phone->outgoing & 1;
|
| 3024 |
|
|
int more = 0;
|
| 3025 |
|
|
int count = 0;
|
| 3026 |
|
|
isdn_net_phone *n;
|
| 3027 |
|
|
|
| 3028 |
|
|
if (!p)
|
| 3029 |
|
|
return -ENODEV;
|
| 3030 |
|
|
inout &= 1;
|
| 3031 |
|
|
for (n = p->local->phone[inout]; n; n = n->next) {
|
| 3032 |
|
|
if (more) {
|
| 3033 |
|
|
put_user(' ', phones++);
|
| 3034 |
|
|
count++;
|
| 3035 |
|
|
}
|
| 3036 |
|
|
if (copy_to_user(phones, n->num, strlen(n->num) + 1)) {
|
| 3037 |
|
|
return -EFAULT;
|
| 3038 |
|
|
}
|
| 3039 |
|
|
phones += strlen(n->num);
|
| 3040 |
|
|
count += strlen(n->num);
|
| 3041 |
|
|
more = 1;
|
| 3042 |
|
|
}
|
| 3043 |
|
|
put_user(0, phones);
|
| 3044 |
|
|
count++;
|
| 3045 |
|
|
return count;
|
| 3046 |
|
|
}
|
| 3047 |
|
|
|
| 3048 |
|
|
/*
|
| 3049 |
|
|
* Copy a string containing the peer's phone number of a connected interface
|
| 3050 |
|
|
* to user space.
|
| 3051 |
|
|
*/
|
| 3052 |
|
|
int
|
| 3053 |
|
|
isdn_net_getpeer(isdn_net_ioctl_phone *phone, isdn_net_ioctl_phone *peer)
|
| 3054 |
|
|
{
|
| 3055 |
|
|
isdn_net_dev *p = isdn_net_findif(phone->name);
|
| 3056 |
|
|
int ch, dv, idx;
|
| 3057 |
|
|
|
| 3058 |
|
|
if (!p) return -ENODEV;
|
| 3059 |
|
|
/*
|
| 3060 |
|
|
* Theoretical race: while this executes, the remote number might
|
| 3061 |
|
|
* become invalid (hang up) or change (new connection), resulting
|
| 3062 |
|
|
* in (partially) wrong number copied to user. This race
|
| 3063 |
|
|
* currently ignored.
|
| 3064 |
|
|
*/
|
| 3065 |
|
|
ch = p->local->isdn_channel;
|
| 3066 |
|
|
dv = p->local->isdn_device;
|
| 3067 |
|
|
if(ch<0 && dv<0) return -ENOTCONN;
|
| 3068 |
|
|
idx = isdn_dc2minor(dv, ch);
|
| 3069 |
|
|
if (idx<0) return -ENODEV;
|
| 3070 |
|
|
/* for pre-bound channels, we need this extra check */
|
| 3071 |
|
|
if ( strncmp(dev->num[idx],"???",3) == 0 ) return -ENOTCONN;
|
| 3072 |
|
|
strncpy(phone->phone,dev->num[idx],ISDN_MSNLEN);
|
| 3073 |
|
|
phone->outgoing=USG_OUTGOING(dev->usage[idx]);
|
| 3074 |
|
|
if ( copy_to_user(peer,phone,sizeof(*peer)) ) return -EFAULT;
|
| 3075 |
|
|
return 0;
|
| 3076 |
|
|
}
|
| 3077 |
|
|
/*
|
| 3078 |
|
|
* Delete a phone-number from an interface.
|
| 3079 |
|
|
*/
|
| 3080 |
|
|
int
|
| 3081 |
|
|
isdn_net_delphone(isdn_net_ioctl_phone * phone)
|
| 3082 |
|
|
{
|
| 3083 |
|
|
isdn_net_dev *p = isdn_net_findif(phone->name);
|
| 3084 |
|
|
int inout = phone->outgoing & 1;
|
| 3085 |
|
|
isdn_net_phone *n;
|
| 3086 |
|
|
isdn_net_phone *m;
|
| 3087 |
|
|
unsigned long flags;
|
| 3088 |
|
|
|
| 3089 |
|
|
if (p) {
|
| 3090 |
|
|
save_flags(flags);
|
| 3091 |
|
|
cli();
|
| 3092 |
|
|
n = p->local->phone[inout];
|
| 3093 |
|
|
m = NULL;
|
| 3094 |
|
|
while (n) {
|
| 3095 |
|
|
if (!strcmp(n->num, phone->phone)) {
|
| 3096 |
|
|
if (p->local->dial == n)
|
| 3097 |
|
|
p->local->dial = n->next;
|
| 3098 |
|
|
if (m)
|
| 3099 |
|
|
m->next = n->next;
|
| 3100 |
|
|
else
|
| 3101 |
|
|
p->local->phone[inout] = n->next;
|
| 3102 |
|
|
kfree(n);
|
| 3103 |
|
|
restore_flags(flags);
|
| 3104 |
|
|
return 0;
|
| 3105 |
|
|
}
|
| 3106 |
|
|
m = n;
|
| 3107 |
|
|
n = (isdn_net_phone *) n->next;
|
| 3108 |
|
|
}
|
| 3109 |
|
|
restore_flags(flags);
|
| 3110 |
|
|
return -EINVAL;
|
| 3111 |
|
|
}
|
| 3112 |
|
|
return -ENODEV;
|
| 3113 |
|
|
}
|
| 3114 |
|
|
|
| 3115 |
|
|
/*
|
| 3116 |
|
|
* Delete all phone-numbers of an interface.
|
| 3117 |
|
|
*/
|
| 3118 |
|
|
static int
|
| 3119 |
|
|
isdn_net_rmallphone(isdn_net_dev * p)
|
| 3120 |
|
|
{
|
| 3121 |
|
|
isdn_net_phone *n;
|
| 3122 |
|
|
isdn_net_phone *m;
|
| 3123 |
|
|
unsigned long flags;
|
| 3124 |
|
|
int i;
|
| 3125 |
|
|
|
| 3126 |
|
|
save_flags(flags);
|
| 3127 |
|
|
cli();
|
| 3128 |
|
|
for (i = 0; i < 2; i++) {
|
| 3129 |
|
|
n = p->local->phone[i];
|
| 3130 |
|
|
while (n) {
|
| 3131 |
|
|
m = n->next;
|
| 3132 |
|
|
kfree(n);
|
| 3133 |
|
|
n = m;
|
| 3134 |
|
|
}
|
| 3135 |
|
|
p->local->phone[i] = NULL;
|
| 3136 |
|
|
}
|
| 3137 |
|
|
p->local->dial = NULL;
|
| 3138 |
|
|
restore_flags(flags);
|
| 3139 |
|
|
return 0;
|
| 3140 |
|
|
}
|
| 3141 |
|
|
|
| 3142 |
|
|
/*
|
| 3143 |
|
|
* Force a hangup of a network-interface.
|
| 3144 |
|
|
*/
|
| 3145 |
|
|
int
|
| 3146 |
|
|
isdn_net_force_hangup(char *name)
|
| 3147 |
|
|
{
|
| 3148 |
|
|
isdn_net_dev *p = isdn_net_findif(name);
|
| 3149 |
|
|
struct net_device *q;
|
| 3150 |
|
|
|
| 3151 |
|
|
if (p) {
|
| 3152 |
|
|
if (p->local->isdn_device < 0)
|
| 3153 |
|
|
return 1;
|
| 3154 |
|
|
q = p->local->slave;
|
| 3155 |
|
|
/* If this interface has slaves, do a hangup for them also. */
|
| 3156 |
|
|
while (q) {
|
| 3157 |
|
|
isdn_net_hangup(q);
|
| 3158 |
|
|
q = (((isdn_net_local *) q->priv)->slave);
|
| 3159 |
|
|
}
|
| 3160 |
|
|
isdn_net_hangup(&p->dev);
|
| 3161 |
|
|
return 0;
|
| 3162 |
|
|
}
|
| 3163 |
|
|
return -ENODEV;
|
| 3164 |
|
|
}
|
| 3165 |
|
|
|
| 3166 |
|
|
/*
|
| 3167 |
|
|
* Helper-function for isdn_net_rm: Do the real work.
|
| 3168 |
|
|
*/
|
| 3169 |
|
|
static int
|
| 3170 |
|
|
isdn_net_realrm(isdn_net_dev * p, isdn_net_dev * q)
|
| 3171 |
|
|
{
|
| 3172 |
|
|
unsigned long flags;
|
| 3173 |
|
|
|
| 3174 |
|
|
save_flags(flags);
|
| 3175 |
|
|
cli();
|
| 3176 |
|
|
if (isdn_net_device_started(p)) {
|
| 3177 |
|
|
restore_flags(flags);
|
| 3178 |
|
|
return -EBUSY;
|
| 3179 |
|
|
}
|
| 3180 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 3181 |
|
|
if( p -> cprot && p -> cprot -> pops )
|
| 3182 |
|
|
p -> cprot -> pops -> proto_del ( p -> cprot );
|
| 3183 |
|
|
#endif
|
| 3184 |
|
|
/* Free all phone-entries */
|
| 3185 |
|
|
isdn_net_rmallphone(p);
|
| 3186 |
|
|
/* If interface is bound exclusive, free channel-usage */
|
| 3187 |
|
|
if (p->local->exclusive != -1)
|
| 3188 |
|
|
isdn_unexclusive_channel(p->local->pre_device, p->local->pre_channel);
|
| 3189 |
|
|
if (p->local->master) {
|
| 3190 |
|
|
/* It's a slave-device, so update master's slave-pointer if necessary */
|
| 3191 |
|
|
if (((isdn_net_local *) (p->local->master->priv))->slave == &p->dev)
|
| 3192 |
|
|
((isdn_net_local *) (p->local->master->priv))->slave = p->local->slave;
|
| 3193 |
|
|
} else {
|
| 3194 |
|
|
/* Unregister only if it's a master-device */
|
| 3195 |
|
|
p->dev.hard_header_cache = p->local->org_hhc;
|
| 3196 |
|
|
p->dev.header_cache_update = p->local->org_hcu;
|
| 3197 |
|
|
unregister_netdev(&p->dev);
|
| 3198 |
|
|
}
|
| 3199 |
|
|
/* Unlink device from chain */
|
| 3200 |
|
|
if (q)
|
| 3201 |
|
|
q->next = p->next;
|
| 3202 |
|
|
else
|
| 3203 |
|
|
dev->netdev = p->next;
|
| 3204 |
|
|
if (p->local->slave) {
|
| 3205 |
|
|
/* If this interface has a slave, remove it also */
|
| 3206 |
|
|
char *slavename = ((isdn_net_local *) (p->local->slave->priv))->name;
|
| 3207 |
|
|
isdn_net_dev *n = dev->netdev;
|
| 3208 |
|
|
q = NULL;
|
| 3209 |
|
|
while (n) {
|
| 3210 |
|
|
if (!strcmp(n->local->name, slavename)) {
|
| 3211 |
|
|
isdn_net_realrm(n, q);
|
| 3212 |
|
|
break;
|
| 3213 |
|
|
}
|
| 3214 |
|
|
q = n;
|
| 3215 |
|
|
n = (isdn_net_dev *) n->next;
|
| 3216 |
|
|
}
|
| 3217 |
|
|
}
|
| 3218 |
|
|
/* If no more net-devices remain, disable auto-hangup timer */
|
| 3219 |
|
|
if (dev->netdev == NULL)
|
| 3220 |
|
|
isdn_timer_ctrl(ISDN_TIMER_NETHANGUP, 0);
|
| 3221 |
|
|
restore_flags(flags);
|
| 3222 |
|
|
kfree(p->local);
|
| 3223 |
|
|
kfree(p);
|
| 3224 |
|
|
|
| 3225 |
|
|
return 0;
|
| 3226 |
|
|
}
|
| 3227 |
|
|
|
| 3228 |
|
|
/*
|
| 3229 |
|
|
* Remove a single network-interface.
|
| 3230 |
|
|
*/
|
| 3231 |
|
|
int
|
| 3232 |
|
|
isdn_net_rm(char *name)
|
| 3233 |
|
|
{
|
| 3234 |
|
|
isdn_net_dev *p;
|
| 3235 |
|
|
isdn_net_dev *q;
|
| 3236 |
|
|
|
| 3237 |
|
|
/* Search name in netdev-chain */
|
| 3238 |
|
|
p = dev->netdev;
|
| 3239 |
|
|
q = NULL;
|
| 3240 |
|
|
while (p) {
|
| 3241 |
|
|
if (!strcmp(p->local->name, name))
|
| 3242 |
|
|
return (isdn_net_realrm(p, q));
|
| 3243 |
|
|
q = p;
|
| 3244 |
|
|
p = (isdn_net_dev *) p->next;
|
| 3245 |
|
|
}
|
| 3246 |
|
|
/* If no more net-devices remain, disable auto-hangup timer */
|
| 3247 |
|
|
if (dev->netdev == NULL)
|
| 3248 |
|
|
isdn_timer_ctrl(ISDN_TIMER_NETHANGUP, 0);
|
| 3249 |
|
|
return -ENODEV;
|
| 3250 |
|
|
}
|
| 3251 |
|
|
|
| 3252 |
|
|
/*
|
| 3253 |
|
|
* Remove all network-interfaces
|
| 3254 |
|
|
*/
|
| 3255 |
|
|
int
|
| 3256 |
|
|
isdn_net_rmall(void)
|
| 3257 |
|
|
{
|
| 3258 |
|
|
unsigned long flags;
|
| 3259 |
|
|
int ret;
|
| 3260 |
|
|
|
| 3261 |
|
|
/* Walk through netdev-chain */
|
| 3262 |
|
|
save_flags(flags);
|
| 3263 |
|
|
cli();
|
| 3264 |
|
|
while (dev->netdev) {
|
| 3265 |
|
|
if (!dev->netdev->local->master) {
|
| 3266 |
|
|
/* Remove master-devices only, slaves get removed with their master */
|
| 3267 |
|
|
if ((ret = isdn_net_realrm(dev->netdev, NULL))) {
|
| 3268 |
|
|
restore_flags(flags);
|
| 3269 |
|
|
return ret;
|
| 3270 |
|
|
}
|
| 3271 |
|
|
}
|
| 3272 |
|
|
}
|
| 3273 |
|
|
dev->netdev = NULL;
|
| 3274 |
|
|
restore_flags(flags);
|
| 3275 |
|
|
return 0;
|
| 3276 |
|
|
}
|
