Merge http://linux.bkbits.net/linux-2.5

into tp1.ruhr-uni-bochum.de:/home/kai/src/kernel/v2.5/linux-2.5

drivers/isdn/i4l/isdn_common.c

@@ -503,11 +503,14 @@ isdn_status_callback(isdn_ctrl * c)
 						retval = 2;
 					}
 					break;
-				case 1:
+				case 1: /* incoming call accepted by net interface */
 					list_for_each(l, &isdn_net_devs) {
 						isdn_net_dev *p = list_entry(l, isdn_net_dev, global_list);
 						if (p->isdn_slot == i) {
 							strcpy(cmd.parm.setup.eazmsn, p->mlp->msn);
+							isdn_slot_set_usage(i, (isdn_slot_usage(i) & ISDN_USAGE_EXCLUSIVE) | ISDN_USAGE_NET);
+							strcpy(isdn_slot_num(i), c->parm.setup.phone);
+
 							isdn_slot_command(i, ISDN_CMD_ACCEPTD, &cmd);
 							retval = 1;
 							break;
@@ -1535,26 +1538,20 @@ isdn_get_free_slot(int usage, int l2_proto, int l3_proto,
 		if (USG_NONE(slot[i].usage) &&
 		    (slot[i].di != -1)) {
 			int d = slot[i].di;
-			if ((slot[i].usage & ISDN_USAGE_EXCLUSIVE) &&
-			((pre_dev != d) || (pre_chan != slot[i].ch)))
-				continue;
 			if (!strcmp(isdn_map_eaz2msn(msn, d), "-"))
 				continue;
 			if (slot[i].usage & ISDN_USAGE_DISABLED)
 			        continue; /* usage not allowed */
-			if (dev->drv[d]->flags & DRV_FLAG_RUNNING) {
-				if (((dev->drv[d]->interface->features & features) == features) ||
-				    (((dev->drv[d]->interface->features & vfeatures) == vfeatures) &&
-				     (dev->drv[d]->interface->features & ISDN_FEATURE_L2_TRANS))) {
-					if ((pre_dev < 0) || (pre_chan < 0)) {
-						isdn_slot_set_usage(i, (isdn_slot_usage(i) & ISDN_USAGE_EXCLUSIVE) | usage);
-						restore_flags(flags);
-						return i;
-					} else if ((pre_dev == d) && (pre_chan == slot[i].ch)) {
-						isdn_slot_set_usage(i, (isdn_slot_usage(i) & ISDN_USAGE_EXCLUSIVE) | usage);
-						restore_flags(flags);
-						return i;
-					}
+			if (!dev->drv[d]->flags & DRV_FLAG_RUNNING)
+				continue;
+			if (((dev->drv[d]->interface->features & features) == features) ||
+			    (((dev->drv[d]->interface->features & vfeatures) == vfeatures) &&
+			     (dev->drv[d]->interface->features & ISDN_FEATURE_L2_TRANS))) {
+				if (pre_dev < 0 || pre_chan < 0 ||
+				    (pre_dev == d && pre_chan == slot[i].ch)) {
+					isdn_slot_set_usage(i, usage);
+					restore_flags(flags);
+					return i;
 				}
 			}
 		}
@@ -1571,50 +1568,27 @@ isdn_free_channel(int di, int ch, int usage)
 	int sl;
 
 	sl = isdn_dc2minor(di, ch);
-	isdn_slot_free(sl, usage);
+	isdn_slot_free(sl);
 }
 
 void
-isdn_slot_free(int sl, int usage)
+isdn_slot_free(int sl)
 {
 	unsigned long flags;
 
 	save_flags(flags);
 	cli();
-	if (!usage || (slot[sl].usage & ISDN_USAGE_MASK) == usage) {
-		strcpy(isdn_slot_num(sl), "???");
-		slot[sl].ibytes = 0;
-		slot[sl].obytes = 0;
+	strcpy(isdn_slot_num(sl), "???");
+	slot[sl].ibytes = 0;
+	slot[sl].obytes = 0;
 // 20.10.99 JIM, try to reinitialize v110 !
-		slot[sl].iv110.v110emu = 0;
-		atomic_set(&slot[sl].iv110.v110use, 0);
-		isdn_v110_close(slot[sl].iv110.v110);
-		slot[sl].iv110.v110 = NULL;
+	slot[sl].iv110.v110emu = 0;
+	atomic_set(&slot[sl].iv110.v110use, 0);
+	isdn_v110_close(slot[sl].iv110.v110);
+	slot[sl].iv110.v110 = NULL;
 // 20.10.99 JIM, try to reinitialize v110 !
-		isdn_slot_set_usage(sl, isdn_slot_usage(sl) & (ISDN_USAGE_NONE | ISDN_USAGE_EXCLUSIVE));
-		skb_queue_purge(&dev->drv[isdn_slot_driver(sl)]->rpqueue[isdn_slot_channel(sl)]);
-	}
-	restore_flags(flags);
-}
-
-/*
- * Cancel Exclusive-Flag for ISDN-channel
- */
-void
-isdn_unexclusive_channel(int di, int ch)
-{
-	int i;
-	ulong flags;
-
-	save_flags(flags);
-	cli();
-	for (i = 0; i < ISDN_MAX_CHANNELS; i++)
-		if ((slot[i].di == di) &&
-		    (slot[i].ch == ch)) {
-			isdn_slot_set_usage(i, isdn_slot_usage(i) & ~ISDN_USAGE_EXCLUSIVE);
-			restore_flags(flags);
-			return;
-		}
+	isdn_slot_set_usage(sl, ISDN_USAGE_NONE);
+	skb_queue_purge(&dev->drv[isdn_slot_driver(sl)]->rpqueue[isdn_slot_channel(sl)]);
 	restore_flags(flags);
 }
 
@@ -1959,6 +1933,7 @@ isdn_slot_command(int sl, int cmd, isdn_ctrl *ctrl)
 	case ISDN_CMD_DIAL:
 		if (dev->global_flags & ISDN_GLOBAL_STOPPED)
 			return -EBUSY;
+
 		/* fall through */
 	default:
 		ctrl->arg = isdn_slot_channel(sl);

drivers/isdn/i4l/isdn_common.h

@@ -64,7 +64,6 @@ extern int isdn_dc2minor(int di, int ch);
 extern void isdn_info_update(void);
 extern char *isdn_map_eaz2msn(char *msn, int di);
 extern void isdn_timer_ctrl(int tf, int onoff);
-extern void isdn_unexclusive_channel(int di, int ch);
 extern int isdn_getnum(char **);
 extern int isdn_msncmp( const char *,  const char *);
 extern int isdn_add_channels(driver *, int, int, int);
@@ -85,7 +84,7 @@ struct dial_info {
 };
 
 extern int   isdn_get_free_slot(int, int, int, int, int, char *);
-extern void  isdn_slot_free(int slot, int usage);
+extern void  isdn_slot_free(int slot);
 extern void  isdn_slot_all_eaz(int slot);
 extern int   isdn_slot_command(int slot, int cmd, isdn_ctrl *);
 extern int   isdn_slot_dial(int slot, struct dial_info *dial);

drivers/isdn/i4l/isdn_concap.c

@@ -21,8 +21,6 @@
 #include "isdn_concap.h"
 #include <linux/if_arp.h>
 
-#ifdef CONFIG_ISDN_X25
-
 /* The following set of device service operations are for encapsulation
    protocols that require for reliable datalink semantics. That means:
 
@@ -255,5 +253,3 @@ struct isdn_netif_ops isdn_x25_ops = {
 	.open                = isdn_x25_open,
 	.close               = isdn_x25_close,
 };
-
-#endif /* CONFIG_ISDN_X25 */

drivers/isdn/i4l/isdn_net.c

@@ -423,163 +423,6 @@ isdn_net_rcv_skb(int idx, struct sk_buff *skb)
 	return 0;
 }
 
-/*
- * An incoming call-request has arrived.
- * Search the interface-chain for an appropriate interface.
- * If found, connect the interface to the ISDN-channel and initiate
- * D- and B-Channel-setup. If secure-flag is set, accept only
- * configured phone-numbers. If callback-flag is set, initiate
- * callback-dialing.
- *
- * Return-Value: 0 = No appropriate interface for this call.
- *               1 = Call accepted
- *               2 = Reject call, wait cbdelay, then call back
- *               3 = Reject call
- *               4 = Wait cbdelay, then call back
- *               5 = No appropriate interface for this call,
- *                   would eventually match if CID was longer.
- */
-int
-isdn_net_find_icall(int di, int ch, int idx, setup_parm *setup)
-{
-	char *eaz;
-	unsigned char si1, si2;
-	int match_more = 0;
-	int retval;
-	struct list_head *l;
-	struct isdn_net_phone *n;
-	ulong flags;
-	char nr[32];
-	char *my_eaz;
-
-	int slot = isdn_dc2minor(di, ch);
-	/* Search name in netdev-chain */
-	save_flags(flags);
-	cli();
-	if (!setup->phone[0]) {
-		nr[0] = '0';
-		nr[1] = '\0';
-		printk(KERN_INFO "isdn_net: Incoming call without OAD, assuming '0'\n");
-	} else {
-		strcpy(nr, setup->phone);
-	}
-	si1 = setup->si1;
-	si2 = setup->si2;
-	if (!setup->eazmsn[0]) {
-		printk(KERN_WARNING "isdn_net: Incoming call without CPN, assuming '0'\n");
-		eaz = "0";
-	} else {
-		eaz = setup->eazmsn;
-	}
-	if (dev->net_verbose > 1)
-		printk(KERN_INFO "isdn_net: call from %s,%d,%d -> %s\n", nr, si1, si2, eaz);
-        /* Accept DATA and VOICE calls at this stage
-        local eaz is checked later for allowed call types */
-        if ((si1 != 7) && (si1 != 1)) {
-                restore_flags(flags);
-                if (dev->net_verbose > 1)
-                        printk(KERN_INFO "isdn_net: Service-Indicator not 1 or 7, ignored\n");
-                return 0;
-        }
-
-	n = NULL;
-	dbg_net_icall("n_fi: di=%d ch=%d idx=%d usg=%d\n", di, ch, idx,
-		      isdn_slot_usage(idx));
-
-	list_for_each(l, &isdn_net_devs) {
-		isdn_net_dev *idev = list_entry(l, isdn_net_dev, global_list);
-		isdn_net_local *mlp = idev->mlp;
-
-                /* check acceptable call types for DOV */
-		dbg_net_icall("n_fi: if='%s', l.msn=%s, l.flags=%#x, l.dstate=%d\n",
-			      idev->name, mlp->msn, mlp->flags, idev->fi.state);
-
-                my_eaz = isdn_slot_map_eaz2msn(slot, mlp->msn);
-                if (si1 == 1) { /* it's a DOV call, check if we allow it */
-                        if (*my_eaz == 'v' || *my_eaz == 'V' ||
-			    *my_eaz == 'b' || *my_eaz == 'B')
-                                my_eaz++; /* skip to allow a match */
-                        else
-                                continue; /* force non match */
-                } else { /* it's a DATA call, check if we allow it */
-                        if (*my_eaz == 'b' || *my_eaz == 'B')
-                                my_eaz++; /* skip to allow a match */
-                }
-
-		switch (isdn_msncmp(eaz, my_eaz)) {
-		case 1:
-			continue;
-		case 2:
-			match_more = 1;
-			continue;
-		}
-
-		if (isdn_net_bound(idev))
-			continue;
-		
-		if (!USG_NONE(isdn_slot_usage(idx)))
-			continue;
-
-		dbg_net_icall("n_fi: match1, pdev=%d pch=%d\n",
-			      idev->pre_device, idev->pre_channel);
-
-		if (isdn_slot_usage(idx) & ISDN_USAGE_EXCLUSIVE &&
-		    (idev->pre_channel != ch || idev->pre_device != di)) {
-			dbg_net_icall("n_fi: excl check failed\n");
-			continue;
-		}
-		dbg_net_icall("n_fi: match2\n");
-		if (mlp->flags & ISDN_NET_SECURE) {
-			list_for_each_entry(n, &mlp->phone[0], list) {
-				if (!isdn_msncmp(nr, n->num)) {
-					goto found;
-				}
-			}
-			continue;
-		}
-	found:
-		dbg_net_icall("n_fi: match3\n");
-		/* matching interface found */
-		
-		/*
-		 * Is the state STOPPED?
-		 * If so, no dialin is allowed,
-		 * so reject actively.
-		 * */
-		if (ISDN_NET_DIALMODE(*mlp) == ISDN_NET_DM_OFF) {
-			restore_flags(flags);
-			printk(KERN_INFO "incoming call, interface %s `stopped' -> rejected\n",
-			       idev->name);
-			return 3;
-		}
-		/*
-		 * Is the interface up?
-		 * If not, reject the call actively.
-		 */
-		if (!isdn_net_device_started(idev)) {
-			restore_flags(flags);
-			printk(KERN_INFO "%s: incoming call, interface down -> rejected\n",
-			       idev->name);
-			return 3;
-		}
-                if (mlp->flags & ISDN_NET_CALLBACK) {
-                        retval = isdn_net_do_callback(idev);
-                        restore_flags(flags);
-                        return retval;
-                }
-		printk(KERN_DEBUG "%s: call from %s -> %s accepted\n",
-		       idev->name, nr, eaz);
-
-		isdn_net_accept(idev, idx, nr);
-		restore_flags(flags);
-		return 1;
-	}
-	if (dev->net_verbose)
-		printk(KERN_INFO "isdn_net: call from %s -> %d %s ignored\n", nr, slot, eaz);
-	restore_flags(flags);
-	return (match_more == 2) ? 5:0;
-}
-
 /*
  * This is called from certain upper protocol layers (multilink ppp
  * and x25iface encapsulation module) that want to initiate dialing

drivers/isdn/i4l/isdn_net.h

@@ -43,11 +43,7 @@ extern int register_isdn_netif(int encap, struct isdn_netif_ops *ops);
 extern int isdn_net_autodial(struct sk_buff *skb, struct net_device *ndev);
 extern int isdn_net_start_xmit(struct sk_buff *skb, struct net_device *ndev);
 
-extern int  isdn_net_bind_channel(isdn_net_dev *idev, int slot);
-extern void isdn_net_unbind_channel(isdn_net_dev *idev);
 extern int  isdn_net_dial(isdn_net_dev *idev);
-extern void isdn_net_accept(isdn_net_dev *idev, int slot, char *nr);
-extern int  isdn_net_do_callback(isdn_net_dev *idev);
 
 extern int  isdn_net_bsent(isdn_net_dev *idev, isdn_ctrl *c);
 

drivers/isdn/i4l/isdn_tty.c

@@ -745,7 +745,7 @@ isdn_tty_modem_hup(modem_info * info, int local)
 
 	isdn_slot_all_eaz(slot);
 	info->emu.mdmreg[REG_RINGCNT] = 0;
-	isdn_slot_free(slot, 0);
+	isdn_slot_free(slot);
 	isdn_slot_set_m_idx(slot, -1);
 	info->isdn_slot = -1;
 }

drivers/isdn/i4l/isdn_ttyfax.c

@@ -382,7 +382,7 @@ isdn_tty_cmd_FCLASS1(char **p, modem_info * info)
 		info->isdn_slot = i;
 		isdn_slot_set_m_idx(i, info->line);
 		isdn_slot_command(info->isdn_slot, ISDN_CMD_FAXCMD, &c);
-		isdn_slot_free(info->isdn_slot, ISDN_USAGE_FAX);
+		isdn_slot_free(info->isdn_slot);
 		isdn_slot_set_m_idx(i, -1);
 		info->isdn_slot = -1;
 		restore_flags(flags);

include/linux/isdn.h

@@ -339,10 +339,11 @@ typedef struct isdn_net_local_s {
 				       /* phone[1] = Outgoing Numbers      */
 
   struct list_head       slaves;       /* list of all bundled channels     */
-  struct list_head       online;       /* circular list of all bundled
-					  channels, which are currently
-					  online                           */
-  spinlock_t             online_lock;  /* lock to protect queue            */
+  struct list_head       online;       /* list of all bundled channels, 
+					  which are currently online       */
+  spinlock_t             online_lock;  /* lock to protect online list      */
+  struct list_head       running_devs; /* member of global running_devs    */
+  atomic_t               refcnt;       /* references held by ISDN code     */
 
 #ifdef CONFIG_ISDN_X25
   struct concap_device_ops *dops;      /* callbacks used by encapsulator   */
@@ -403,8 +404,8 @@ typedef struct isdn_net_dev_s {
 
   isdn_net_local        *mlp;          /* Ptr to master device for all devs*/
 
-  struct list_head       slaves;       /* Members of local->slaves         */
-  struct list_head       online;       /* Members of local->online         */
+  struct list_head       slaves;       /* member of local->slaves          */
+  struct list_head       online;       /* member of local->online          */
 
   char                   name[10];     /* Name of device                   */
   struct list_head       global_list;  /* global list of all isdn_net_devs */