diff --git a/drivers/isdn/hisax/l3ni1.c b/drivers/isdn/hisax/l3ni1.c
new file mode 100644
index 0000000..3ab3a54
--- /dev/null
+++ b/drivers/isdn/hisax/l3ni1.c
@@ -0,0 +1,3189 @@
+/* $Id: l3ni1.c,v 2.8.2.3 2004/01/13 14:31:25 keil Exp $
+ *
+ * NI1 D-channel protocol
+ *
+ * Author       Matt Henderson & Guy Ellis
+ * Copyright    by Traverse Technologies Pty Ltd, www.travers.com.au
+ * 
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ * 2000.6.6 Initial implementation of routines for US NI1 
+ * Layer 3 protocol based on the EURO/DSS1 D-channel protocol 
+ * driver written by Karsten Keil et al.  
+ * NI-1 Hall of Fame - Thanks to.... 
+ * Ragnar Paulson - for some handy code fragments
+ * Will Scales - beta tester extraordinaire
+ * Brett Whittacre - beta tester and remote devel system in Vegas
+ *
+ */
+
+#include "hisax.h"
+#include "isdnl3.h"
+#include "l3ni1.h"
+#include <linux/ctype.h>
+
+extern char *HiSax_getrev(const char *revision);
+const char *ni1_revision = "$Revision: 2.8.2.3 $";
+
+#define EXT_BEARER_CAPS 1
+
+#define	MsgHead(ptr, cref, mty) \
+	*ptr++ = 0x8; \
+	if (cref == -1) { \
+		*ptr++ = 0x0; \
+	} else { \
+		*ptr++ = 0x1; \
+		*ptr++ = cref^0x80; \
+	} \
+	*ptr++ = mty
+
+
+/**********************************************/
+/* get a new invoke id for remote operations. */
+/* Only a return value != 0 is valid          */
+/**********************************************/
+static unsigned char new_invoke_id(struct PStack *p)
+{
+	unsigned char retval;
+	int i;
+  
+	i = 32; /* maximum search depth */
+
+	retval = p->prot.ni1.last_invoke_id + 1; /* try new id */
+	while ((i) && (p->prot.ni1.invoke_used[retval >> 3] == 0xFF)) {
+		p->prot.ni1.last_invoke_id = (retval & 0xF8) + 8;
+		i--;
+	}  
+	if (i) {
+		while (p->prot.ni1.invoke_used[retval >> 3] & (1 << (retval & 7)))
+		retval++; 
+	} else
+		retval = 0;
+	p->prot.ni1.last_invoke_id = retval;
+	p->prot.ni1.invoke_used[retval >> 3] |= (1 << (retval & 7));
+	return(retval);  
+} /* new_invoke_id */
+
+/*************************/
+/* free a used invoke id */
+/*************************/
+static void free_invoke_id(struct PStack *p, unsigned char id)
+{
+
+  if (!id) return; /* 0 = invalid value */
+
+  p->prot.ni1.invoke_used[id >> 3] &= ~(1 << (id & 7));
+} /* free_invoke_id */  
+
+
+/**********************************************************/
+/* create a new l3 process and fill in ni1 specific data */
+/**********************************************************/
+static struct l3_process
+*ni1_new_l3_process(struct PStack *st, int cr)
+{  struct l3_process *proc;
+
+   if (!(proc = new_l3_process(st, cr))) 
+     return(NULL);
+
+   proc->prot.ni1.invoke_id = 0;
+   proc->prot.ni1.remote_operation = 0;
+   proc->prot.ni1.uus1_data[0] = '\0';
+   
+   return(proc);
+} /* ni1_new_l3_process */
+
+/************************************************/
+/* free a l3 process and all ni1 specific data */
+/************************************************/ 
+static void
+ni1_release_l3_process(struct l3_process *p)
+{
+   free_invoke_id(p->st,p->prot.ni1.invoke_id);
+   release_l3_process(p);
+} /* ni1_release_l3_process */
+ 
+/********************************************************/
+/* search a process with invoke id id and dummy callref */
+/********************************************************/
+static struct l3_process *
+l3ni1_search_dummy_proc(struct PStack *st, int id)
+{ struct l3_process *pc = st->l3.proc; /* start of processes */
+
+  if (!id) return(NULL);
+
+  while (pc)
+   { if ((pc->callref == -1) && (pc->prot.ni1.invoke_id == id))
+       return(pc);
+     pc = pc->next;
+   } 
+  return(NULL);
+} /* l3ni1_search_dummy_proc */
+
+/*******************************************************************/
+/* called when a facility message with a dummy callref is received */
+/* and a return result is delivered. id specifies the invoke id.   */
+/*******************************************************************/ 
+static void 
+l3ni1_dummy_return_result(struct PStack *st, int id, u_char *p, u_char nlen)
+{ isdn_ctrl ic;
+  struct IsdnCardState *cs;
+  struct l3_process *pc = NULL; 
+
+  if ((pc = l3ni1_search_dummy_proc(st, id)))
+   { L3DelTimer(&pc->timer); /* remove timer */
+
+     cs = pc->st->l1.hardware;
+     ic.driver = cs->myid;
+     ic.command = ISDN_STAT_PROT;
+     ic.arg = NI1_STAT_INVOKE_RES;
+     ic.parm.ni1_io.hl_id = pc->prot.ni1.invoke_id;
+     ic.parm.ni1_io.ll_id = pc->prot.ni1.ll_id;
+     ic.parm.ni1_io.proc = pc->prot.ni1.proc;
+     ic.parm.ni1_io.timeout= 0;
+     ic.parm.ni1_io.datalen = nlen;
+     ic.parm.ni1_io.data = p;
+     free_invoke_id(pc->st, pc->prot.ni1.invoke_id);
+     pc->prot.ni1.invoke_id = 0; /* reset id */
+
+     cs->iif.statcallb(&ic);
+     ni1_release_l3_process(pc); 
+   }
+  else
+   l3_debug(st, "dummy return result id=0x%x result len=%d",id,nlen);
+} /* l3ni1_dummy_return_result */
+
+/*******************************************************************/
+/* called when a facility message with a dummy callref is received */
+/* and a return error is delivered. id specifies the invoke id.    */
+/*******************************************************************/ 
+static void 
+l3ni1_dummy_error_return(struct PStack *st, int id, ulong error)
+{ isdn_ctrl ic;
+  struct IsdnCardState *cs;
+  struct l3_process *pc = NULL; 
+
+  if ((pc = l3ni1_search_dummy_proc(st, id)))
+   { L3DelTimer(&pc->timer); /* remove timer */
+
+     cs = pc->st->l1.hardware;
+     ic.driver = cs->myid;
+     ic.command = ISDN_STAT_PROT;
+     ic.arg = NI1_STAT_INVOKE_ERR;
+     ic.parm.ni1_io.hl_id = pc->prot.ni1.invoke_id;
+     ic.parm.ni1_io.ll_id = pc->prot.ni1.ll_id;
+     ic.parm.ni1_io.proc = pc->prot.ni1.proc;
+     ic.parm.ni1_io.timeout= error;
+     ic.parm.ni1_io.datalen = 0;
+     ic.parm.ni1_io.data = NULL;
+     free_invoke_id(pc->st, pc->prot.ni1.invoke_id);
+     pc->prot.ni1.invoke_id = 0; /* reset id */
+
+     cs->iif.statcallb(&ic);
+     ni1_release_l3_process(pc); 
+   }
+  else
+   l3_debug(st, "dummy return error id=0x%x error=0x%lx",id,error);
+} /* l3ni1_error_return */
+
+/*******************************************************************/
+/* called when a facility message with a dummy callref is received */
+/* and a invoke is delivered. id specifies the invoke id.          */
+/*******************************************************************/ 
+static void 
+l3ni1_dummy_invoke(struct PStack *st, int cr, int id, 
+                    int ident, u_char *p, u_char nlen)
+{ isdn_ctrl ic;
+  struct IsdnCardState *cs;
+
+  l3_debug(st, "dummy invoke %s id=0x%x ident=0x%x datalen=%d",
+               (cr == -1) ? "local" : "broadcast",id,ident,nlen);
+  if (cr >= -1) return; /* ignore local data */
+
+  cs = st->l1.hardware;
+  ic.driver = cs->myid;
+  ic.command = ISDN_STAT_PROT;
+  ic.arg = NI1_STAT_INVOKE_BRD;
+  ic.parm.ni1_io.hl_id = id;
+  ic.parm.ni1_io.ll_id = 0;
+  ic.parm.ni1_io.proc = ident;
+  ic.parm.ni1_io.timeout= 0;
+  ic.parm.ni1_io.datalen = nlen;
+  ic.parm.ni1_io.data = p;
+
+  cs->iif.statcallb(&ic);
+} /* l3ni1_dummy_invoke */
+
+static void
+l3ni1_parse_facility(struct PStack *st, struct l3_process *pc,
+                      int cr, u_char * p)
+{
+	int qd_len = 0;
+	unsigned char nlen = 0, ilen, cp_tag;
+	int ident, id;
+	ulong err_ret;
+
+	if (pc) 
+		st = pc->st; /* valid Stack */
+	else
+		if ((!st) || (cr >= 0)) return; /* neither pc nor st specified */
+
+	p++;
+	qd_len = *p++;
+	if (qd_len == 0) {
+		l3_debug(st, "qd_len == 0");
+		return;
+	}
+	if ((*p & 0x1F) != 0x11) {	/* Service discriminator, supplementary service */
+		l3_debug(st, "supplementary service != 0x11");
+		return;
+	}
+	while (qd_len > 0 && !(*p & 0x80)) {	/* extension ? */
+		p++;
+		qd_len--;
+	}
+	if (qd_len < 2) {
+		l3_debug(st, "qd_len < 2");
+		return;
+	}
+	p++;
+	qd_len--;
+	if ((*p & 0xE0) != 0xA0) {	/* class and form */
+		l3_debug(st, "class and form != 0xA0");
+		return;
+	}
+       
+        cp_tag = *p & 0x1F; /* remember tag value */
+
+        p++;
+	qd_len--;
+	if (qd_len < 1) 
+          { l3_debug(st, "qd_len < 1");
+	    return;
+	  }
+	if (*p & 0x80) 
+          { /* length format indefinite or limited */
+	    nlen = *p++ & 0x7F; /* number of len bytes or indefinite */
+            if ((qd_len-- < ((!nlen) ? 3 : (1 + nlen))) ||
+                (nlen > 1))   
+	     { l3_debug(st, "length format error or not implemented");
+	       return;
+             }
+            if (nlen == 1)
+	     { nlen = *p++; /* complete length */
+               qd_len--;
+             } 
+            else
+	     { qd_len -= 2; /* trailing null bytes */
+               if ((*(p+qd_len)) || (*(p+qd_len+1)))
+		{ l3_debug(st,"length format indefinite error");
+                  return;
+                }
+               nlen = qd_len;
+             }
+	  }
+        else
+	  { nlen = *p++;
+	    qd_len--;
+          } 
+	if (qd_len < nlen) 
+          { l3_debug(st, "qd_len < nlen");
+	    return;
+	  }
+	qd_len -= nlen;
+
+	if (nlen < 2) 
+          { l3_debug(st, "nlen < 2");
+	    return;
+	  }
+        if (*p != 0x02) 
+          {  /* invoke identifier tag */
+	     l3_debug(st, "invoke identifier tag !=0x02");
+	     return;
+	  }
+	p++;
+	nlen--;
+	if (*p & 0x80) 
+          { /* length format */
+	    l3_debug(st, "invoke id length format 2");
+	    return;
+	  }
+	ilen = *p++;
+	nlen--;
+	if (ilen > nlen || ilen == 0) 
+          { l3_debug(st, "ilen > nlen || ilen == 0");
+	    return;
+	  }
+	nlen -= ilen;
+	id = 0;
+	while (ilen > 0) 
+          { id = (id << 8) | (*p++ & 0xFF);	/* invoke identifier */
+	    ilen--;
+	  }
+
+	switch (cp_tag) {	/* component tag */
+		case 1:	/* invoke */
+				if (nlen < 2) {
+					l3_debug(st, "nlen < 2 22");
+					return;
+				}
+				if (*p != 0x02) {	/* operation value */
+					l3_debug(st, "operation value !=0x02");
+					return;
+				}
+				p++;
+				nlen--;
+				ilen = *p++;
+				nlen--;
+				if (ilen > nlen || ilen == 0) {
+					l3_debug(st, "ilen > nlen || ilen == 0 22");
+					return;
+				}
+				nlen -= ilen;
+				ident = 0;
+				while (ilen > 0) {
+					ident = (ident << 8) | (*p++ & 0xFF);
+					ilen--;
+				}
+
+				if (!pc) 
+				{
+					l3ni1_dummy_invoke(st, cr, id, ident, p, nlen);
+					return;
+				} 
+				l3_debug(st, "invoke break");
+				break;
+		case 2:	/* return result */
+			 /* if no process available handle separately */ 
+                        if (!pc)
+			 { if (cr == -1) 
+                             l3ni1_dummy_return_result(st, id, p, nlen);
+                           return; 
+                         }   
+                        if ((pc->prot.ni1.invoke_id) && (pc->prot.ni1.invoke_id == id))
+                          { /* Diversion successful */
+                            free_invoke_id(st,pc->prot.ni1.invoke_id);
+                            pc->prot.ni1.remote_result = 0; /* success */     
+                            pc->prot.ni1.invoke_id = 0;
+                            pc->redir_result = pc->prot.ni1.remote_result; 
+                            st->l3.l3l4(st, CC_REDIR | INDICATION, pc);                                  } /* Diversion successful */
+                        else
+                          l3_debug(st,"return error unknown identifier");
+			break;
+		case 3:	/* return error */
+                            err_ret = 0;
+	                    if (nlen < 2) 
+                              { l3_debug(st, "return error nlen < 2");
+	                        return;
+	                      }
+                            if (*p != 0x02) 
+                              { /* result tag */
+	                        l3_debug(st, "invoke error tag !=0x02");
+	                        return;
+	                      }
+	                    p++;
+	                    nlen--;
+	                    if (*p > 4) 
+                              { /* length format */
+	                        l3_debug(st, "invoke return errlen > 4 ");
+	                        return;
+	                      }
+	                    ilen = *p++;
+	                    nlen--;
+	                    if (ilen > nlen || ilen == 0) 
+                              { l3_debug(st, "error return ilen > nlen || ilen == 0");
+	                        return;
+	                       }
+	                    nlen -= ilen;
+	                    while (ilen > 0) 
+                             { err_ret = (err_ret << 8) | (*p++ & 0xFF);	/* error value */
+	                       ilen--;
+	                     }
+			 /* if no process available handle separately */ 
+                        if (!pc)
+			 { if (cr == -1)
+                             l3ni1_dummy_error_return(st, id, err_ret);
+                           return; 
+                         }   
+                        if ((pc->prot.ni1.invoke_id) && (pc->prot.ni1.invoke_id == id))
+                          { /* Deflection error */
+                            free_invoke_id(st,pc->prot.ni1.invoke_id);
+                            pc->prot.ni1.remote_result = err_ret; /* result */
+                            pc->prot.ni1.invoke_id = 0; 
+                            pc->redir_result = pc->prot.ni1.remote_result; 
+                            st->l3.l3l4(st, CC_REDIR | INDICATION, pc);  
+                          } /* Deflection error */
+                        else
+                          l3_debug(st,"return result unknown identifier");
+			break;
+		default:
+			l3_debug(st, "facility default break tag=0x%02x",cp_tag);
+			break;
+	}
+}
+
+static void
+l3ni1_message(struct l3_process *pc, u_char mt)
+{
+	struct sk_buff *skb;
+	u_char *p;
+
+	if (!(skb = l3_alloc_skb(4)))
+		return;
+	p = skb_put(skb, 4);
+	MsgHead(p, pc->callref, mt);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+}
+
+static void
+l3ni1_message_plus_chid(struct l3_process *pc, u_char mt)
+/* sends an l3 messages plus channel id -  added GE 05/09/00 */
+{
+	struct sk_buff *skb;
+	u_char tmp[16];
+	u_char *p = tmp;
+	u_char chid;
+
+	chid = (u_char)(pc->para.bchannel & 0x03) | 0x88;
+	MsgHead(p, pc->callref, mt);
+	*p++ = IE_CHANNEL_ID;
+	*p++ = 0x01;
+	*p++ = chid;
+
+	if (!(skb = l3_alloc_skb(7)))
+		return;
+	memcpy(skb_put(skb, 7), tmp, 7);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+}
+
+static void
+l3ni1_message_cause(struct l3_process *pc, u_char mt, u_char cause)
+{
+	struct sk_buff *skb;
+	u_char tmp[16];
+	u_char *p = tmp;
+	int l;
+
+	MsgHead(p, pc->callref, mt);
+	*p++ = IE_CAUSE;
+	*p++ = 0x2;
+	*p++ = 0x80;
+	*p++ = cause | 0x80;
+
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+}
+
+static void
+l3ni1_status_send(struct l3_process *pc, u_char pr, void *arg)
+{
+	u_char tmp[16];
+	u_char *p = tmp;
+	int l;
+	struct sk_buff *skb;
+
+	MsgHead(p, pc->callref, MT_STATUS);
+
+	*p++ = IE_CAUSE;
+	*p++ = 0x2;
+	*p++ = 0x80;
+	*p++ = pc->para.cause | 0x80;
+
+	*p++ = IE_CALL_STATE;
+	*p++ = 0x1;
+	*p++ = pc->state & 0x3f;
+
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+}
+
+static void
+l3ni1_msg_without_setup(struct l3_process *pc, u_char pr, void *arg)
+{
+	/* This routine is called if here was no SETUP made (checks in ni1up and in
+	 * l3ni1_setup) and a RELEASE_COMPLETE have to be sent with an error code
+	 * MT_STATUS_ENQUIRE in the NULL state is handled too
+	 */
+	u_char tmp[16];
+	u_char *p = tmp;
+	int l;
+	struct sk_buff *skb;
+
+	switch (pc->para.cause) {
+		case 81:	/* invalid callreference */
+		case 88:	/* incomp destination */
+		case 96:	/* mandory IE missing */
+		case 100:       /* invalid IE contents */
+		case 101:	/* incompatible Callstate */
+			MsgHead(p, pc->callref, MT_RELEASE_COMPLETE);
+			*p++ = IE_CAUSE;
+			*p++ = 0x2;
+			*p++ = 0x80;
+			*p++ = pc->para.cause | 0x80;
+			break;
+		default:
+			printk(KERN_ERR "HiSax l3ni1_msg_without_setup wrong cause %d\n",
+				pc->para.cause);
+			return;
+	}
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+	ni1_release_l3_process(pc);
+}
+
+static int ie_ALERTING[] = {IE_BEARER, IE_CHANNEL_ID | IE_MANDATORY_1,
+		IE_FACILITY, IE_PROGRESS, IE_DISPLAY, IE_SIGNAL, IE_HLC,
+		IE_USER_USER, -1};
+static int ie_CALL_PROCEEDING[] = {IE_BEARER, IE_CHANNEL_ID | IE_MANDATORY_1,
+		IE_FACILITY, IE_PROGRESS, IE_DISPLAY, IE_HLC, -1};
+static int ie_CONNECT[] = {IE_BEARER, IE_CHANNEL_ID | IE_MANDATORY_1, 
+		IE_FACILITY, IE_PROGRESS, IE_DISPLAY, IE_DATE, IE_SIGNAL,
+		IE_CONNECT_PN, IE_CONNECT_SUB, IE_LLC, IE_HLC, IE_USER_USER, -1};
+static int ie_CONNECT_ACKNOWLEDGE[] = {IE_CHANNEL_ID, IE_DISPLAY, IE_SIGNAL, -1};
+static int ie_DISCONNECT[] = {IE_CAUSE | IE_MANDATORY, IE_FACILITY,
+		IE_PROGRESS, IE_DISPLAY, IE_SIGNAL, IE_USER_USER, -1};
+static int ie_INFORMATION[] = {IE_COMPLETE, IE_DISPLAY, IE_KEYPAD, IE_SIGNAL,
+		IE_CALLED_PN, -1};
+static int ie_NOTIFY[] = {IE_BEARER, IE_NOTIFY | IE_MANDATORY, IE_DISPLAY, -1};
+static int ie_PROGRESS[] = {IE_BEARER, IE_CAUSE, IE_FACILITY, IE_PROGRESS |
+		IE_MANDATORY, IE_DISPLAY, IE_HLC, IE_USER_USER, -1};
+static int ie_RELEASE[] = {IE_CAUSE | IE_MANDATORY_1, IE_FACILITY, IE_DISPLAY,
+		IE_SIGNAL, IE_USER_USER, -1};
+/* a RELEASE_COMPLETE with errors don't require special actions 
+static int ie_RELEASE_COMPLETE[] = {IE_CAUSE | IE_MANDATORY_1, IE_DISPLAY, IE_SIGNAL, IE_USER_USER, -1};
+*/
+static int ie_RESUME_ACKNOWLEDGE[] = {IE_CHANNEL_ID| IE_MANDATORY, IE_FACILITY,
+		IE_DISPLAY, -1};
+static int ie_RESUME_REJECT[] = {IE_CAUSE | IE_MANDATORY, IE_DISPLAY, -1};
+static int ie_SETUP[] = {IE_COMPLETE, IE_BEARER  | IE_MANDATORY,
+		IE_CHANNEL_ID| IE_MANDATORY, IE_FACILITY, IE_PROGRESS,
+		IE_NET_FAC, IE_DISPLAY, IE_KEYPAD, IE_SIGNAL, IE_CALLING_PN,
+		IE_CALLING_SUB, IE_CALLED_PN, IE_CALLED_SUB, IE_REDIR_NR,
+		IE_LLC, IE_HLC, IE_USER_USER, -1};
+static int ie_SETUP_ACKNOWLEDGE[] = {IE_CHANNEL_ID | IE_MANDATORY, IE_FACILITY,
+		IE_PROGRESS, IE_DISPLAY, IE_SIGNAL, -1};
+static int ie_STATUS[] = {IE_CAUSE | IE_MANDATORY, IE_CALL_STATE |
+		IE_MANDATORY, IE_DISPLAY, -1};
+static int ie_STATUS_ENQUIRY[] = {IE_DISPLAY, -1};
+static int ie_SUSPEND_ACKNOWLEDGE[] = {IE_DISPLAY, IE_FACILITY, -1};
+static int ie_SUSPEND_REJECT[] = {IE_CAUSE | IE_MANDATORY, IE_DISPLAY, -1};
+/* not used 
+ * static int ie_CONGESTION_CONTROL[] = {IE_CONGESTION | IE_MANDATORY,
+ *		IE_CAUSE | IE_MANDATORY, IE_DISPLAY, -1};
+ * static int ie_USER_INFORMATION[] = {IE_MORE_DATA, IE_USER_USER | IE_MANDATORY, -1};
+ * static int ie_RESTART[] = {IE_CHANNEL_ID, IE_DISPLAY, IE_RESTART_IND |
+ *		IE_MANDATORY, -1};
+ */
+static int ie_FACILITY[] = {IE_FACILITY | IE_MANDATORY, IE_DISPLAY, -1};
+static int comp_required[] = {1,2,3,5,6,7,9,10,11,14,15,-1};
+static int l3_valid_states[] = {0,1,2,3,4,6,7,8,9,10,11,12,15,17,19,25,-1};
+
+struct ie_len {
+	int ie;
+	int len;
+};
+
+static
+struct ie_len max_ie_len[] = {
+	{IE_SEGMENT, 4},
+	{IE_BEARER, 12},
+	{IE_CAUSE, 32},
+	{IE_CALL_ID, 10},
+	{IE_CALL_STATE, 3},
+	{IE_CHANNEL_ID,	34},
+	{IE_FACILITY, 255},
+	{IE_PROGRESS, 4},
+	{IE_NET_FAC, 255},
+	{IE_NOTIFY, 3},
+	{IE_DISPLAY, 82},
+	{IE_DATE, 8},
+	{IE_KEYPAD, 34},
+	{IE_SIGNAL, 3},
+	{IE_INFORATE, 6},
+	{IE_E2E_TDELAY, 11},
+	{IE_TDELAY_SEL, 5},
+	{IE_PACK_BINPARA, 3},
+	{IE_PACK_WINSIZE, 4},
+	{IE_PACK_SIZE, 4},
+	{IE_CUG, 7},
+	{IE_REV_CHARGE, 3},
+	{IE_CALLING_PN, 24},
+	{IE_CALLING_SUB, 23},
+	{IE_CALLED_PN, 24},
+	{IE_CALLED_SUB, 23},
+	{IE_REDIR_NR, 255},
+	{IE_TRANS_SEL, 255},
+	{IE_RESTART_IND, 3},
+	{IE_LLC, 18},
+	{IE_HLC, 5},
+	{IE_USER_USER, 131},
+	{-1,0},
+};
+
+static int
+getmax_ie_len(u_char ie) {
+	int i = 0;
+	while (max_ie_len[i].ie != -1) {
+		if (max_ie_len[i].ie == ie)
+			return(max_ie_len[i].len);
+		i++;
+	}
+	return(255);
+}
+
+static int
+ie_in_set(struct l3_process *pc, u_char ie, int *checklist) {
+	int ret = 1;
+
+	while (*checklist != -1) {
+		if ((*checklist & 0xff) == ie) {
+			if (ie & 0x80)
+				return(-ret);
+			else
+				return(ret);
+		}
+		ret++;
+		checklist++;
+	}
+	return(0);
+}
+
+static int
+check_infoelements(struct l3_process *pc, struct sk_buff *skb, int *checklist)
+{
+	int *cl = checklist;
+	u_char mt;
+	u_char *p, ie;
+	int l, newpos, oldpos;
+	int err_seq = 0, err_len = 0, err_compr = 0, err_ureg = 0;
+	u_char codeset = 0;
+	u_char old_codeset = 0;
+	u_char codelock = 1;
+	
+	p = skb->data;
+	/* skip cr */
+	p++;
+	l = (*p++) & 0xf;
+	p += l;
+	mt = *p++;
+	oldpos = 0;
+	while ((p - skb->data) < skb->len) {
+		if ((*p & 0xf0) == 0x90) { /* shift codeset */
+			old_codeset = codeset;
+			codeset = *p & 7;
+			if (*p & 0x08)
+				codelock = 0;
+			else
+				codelock = 1;
+			if (pc->debug & L3_DEB_CHECK)
+				l3_debug(pc->st, "check IE shift%scodeset %d->%d",
+					codelock ? " locking ": " ", old_codeset, codeset);
+			p++;
+			continue;
+		}
+		if (!codeset) { /* only codeset 0 */
+			if ((newpos = ie_in_set(pc, *p, cl))) {
+				if (newpos > 0) {
+					if (newpos < oldpos)
+						err_seq++;
+					else
+						oldpos = newpos;
+				}
+			} else {
+				if (ie_in_set(pc, *p, comp_required))
+					err_compr++;
+				else
+					err_ureg++;
+			}
+		}
+		ie = *p++;
+		if (ie & 0x80) {
+			l = 1;
+		} else {
+			l = *p++;
+			p += l;
+			l += 2;
+		}
+		if (!codeset && (l > getmax_ie_len(ie)))
+			err_len++;
+		if (!codelock) {
+			if (pc->debug & L3_DEB_CHECK)
+				l3_debug(pc->st, "check IE shift back codeset %d->%d",
+					codeset, old_codeset);
+			codeset = old_codeset;
+			codelock = 1;
+		}
+	}
+	if (err_compr | err_ureg | err_len | err_seq) {
+		if (pc->debug & L3_DEB_CHECK)
+			l3_debug(pc->st, "check IE MT(%x) %d/%d/%d/%d",
+				mt, err_compr, err_ureg, err_len, err_seq);
+		if (err_compr)
+			return(ERR_IE_COMPREHENSION);
+		if (err_ureg)
+			return(ERR_IE_UNRECOGNIZED);
+		if (err_len)
+			return(ERR_IE_LENGTH);
+		if (err_seq)
+			return(ERR_IE_SEQUENCE);
+	} 
+	return(0);
+}
+
+/* verify if a message type exists and contain no IE error */
+static int
+l3ni1_check_messagetype_validity(struct l3_process *pc, int mt, void *arg)
+{
+	switch (mt) {
+		case MT_ALERTING:
+		case MT_CALL_PROCEEDING:
+		case MT_CONNECT:
+		case MT_CONNECT_ACKNOWLEDGE:
+		case MT_DISCONNECT:
+		case MT_INFORMATION:
+		case MT_FACILITY:
+		case MT_NOTIFY:
+		case MT_PROGRESS:
+		case MT_RELEASE:
+		case MT_RELEASE_COMPLETE:
+		case MT_SETUP:
+		case MT_SETUP_ACKNOWLEDGE:
+		case MT_RESUME_ACKNOWLEDGE:
+		case MT_RESUME_REJECT:
+		case MT_SUSPEND_ACKNOWLEDGE:
+		case MT_SUSPEND_REJECT:
+		case MT_USER_INFORMATION:
+		case MT_RESTART:
+		case MT_RESTART_ACKNOWLEDGE:
+		case MT_CONGESTION_CONTROL:
+		case MT_STATUS:
+		case MT_STATUS_ENQUIRY:
+			if (pc->debug & L3_DEB_CHECK)
+				l3_debug(pc->st, "l3ni1_check_messagetype_validity mt(%x) OK", mt);
+			break;
+		case MT_RESUME: /* RESUME only in user->net */
+		case MT_SUSPEND: /* SUSPEND only in user->net */
+		default:
+			if (pc->debug & (L3_DEB_CHECK | L3_DEB_WARN))
+				l3_debug(pc->st, "l3ni1_check_messagetype_validity mt(%x) fail", mt);
+			pc->para.cause = 97;
+			l3ni1_status_send(pc, 0, NULL);
+			return(1);
+	}
+	return(0);
+}
+
+static void
+l3ni1_std_ie_err(struct l3_process *pc, int ret) {
+
+	if (pc->debug & L3_DEB_CHECK)
+		l3_debug(pc->st, "check_infoelements ret %d", ret);
+	switch(ret) {
+		case 0: 
+			break;
+		case ERR_IE_COMPREHENSION:
+			pc->para.cause = 96;
+			l3ni1_status_send(pc, 0, NULL);
+			break;
+		case ERR_IE_UNRECOGNIZED:
+			pc->para.cause = 99;
+			l3ni1_status_send(pc, 0, NULL);
+			break;
+		case ERR_IE_LENGTH:
+			pc->para.cause = 100;
+			l3ni1_status_send(pc, 0, NULL);
+			break;
+		case ERR_IE_SEQUENCE:
+		default:
+			break;
+	}
+}
+
+static int
+l3ni1_get_channel_id(struct l3_process *pc, struct sk_buff *skb) {
+	u_char *p;
+
+	p = skb->data;
+	if ((p = findie(p, skb->len, IE_CHANNEL_ID, 0))) {
+		p++;
+		if (*p != 1) { /* len for BRI = 1 */
+			if (pc->debug & L3_DEB_WARN)
+				l3_debug(pc->st, "wrong chid len %d", *p);
+			return (-2);
+		}
+		p++;
+		if (*p & 0x60) { /* only base rate interface */
+			if (pc->debug & L3_DEB_WARN)
+				l3_debug(pc->st, "wrong chid %x", *p);
+			return (-3);
+		}
+		return(*p & 0x3);
+	} else
+		return(-1);
+}
+
+static int
+l3ni1_get_cause(struct l3_process *pc, struct sk_buff *skb) {
+	u_char l, i=0;
+	u_char *p;
+
+	p = skb->data;
+	pc->para.cause = 31;
+	pc->para.loc = 0;
+	if ((p = findie(p, skb->len, IE_CAUSE, 0))) {
+		p++;
+		l = *p++;
+		if (l>30)
+			return(1);
+		if (l) {
+			pc->para.loc = *p++;
+			l--;
+		} else {
+			return(2);
+		}
+		if (l && !(pc->para.loc & 0x80)) {
+			l--;
+			p++; /* skip recommendation */
+		}
+		if (l) {
+			pc->para.cause = *p++;
+			l--;
+			if (!(pc->para.cause & 0x80))
+				return(3);
+		} else
+			return(4);
+		while (l && (i<6)) {
+			pc->para.diag[i++] = *p++;
+			l--;
+		}
+	} else
+		return(-1);
+	return(0);
+}
+
+static void
+l3ni1_msg_with_uus(struct l3_process *pc, u_char cmd)
+{
+	struct sk_buff *skb;
+	u_char tmp[16+40];
+	u_char *p = tmp;
+	int l;
+
+	MsgHead(p, pc->callref, cmd);
+
+        if (pc->prot.ni1.uus1_data[0])
+	 { *p++ = IE_USER_USER; /* UUS info element */
+           *p++ = strlen(pc->prot.ni1.uus1_data) + 1;
+           *p++ = 0x04; /* IA5 chars */
+           strcpy(p,pc->prot.ni1.uus1_data);
+           p += strlen(pc->prot.ni1.uus1_data);
+           pc->prot.ni1.uus1_data[0] = '\0';   
+         } 
+
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+} /* l3ni1_msg_with_uus */
+
+static void
+l3ni1_release_req(struct l3_process *pc, u_char pr, void *arg)
+{
+	StopAllL3Timer(pc);
+	newl3state(pc, 19);
+	if (!pc->prot.ni1.uus1_data[0]) 
+		l3ni1_message(pc, MT_RELEASE);
+	else
+		l3ni1_msg_with_uus(pc, MT_RELEASE);
+	L3AddTimer(&pc->timer, T308, CC_T308_1);
+}
+
+static void
+l3ni1_release_cmpl(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int ret;
+
+	if ((ret = l3ni1_get_cause(pc, skb))>0) {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "RELCMPL get_cause ret(%d)",ret);
+	} else if (ret < 0)
+		pc->para.cause = NO_CAUSE;
+	StopAllL3Timer(pc);
+	newl3state(pc, 0);
+	pc->st->l3.l3l4(pc->st, CC_RELEASE | CONFIRM, pc);
+	ni1_release_l3_process(pc);
+}
+
+#if EXT_BEARER_CAPS
+
+static u_char *
+EncodeASyncParams(u_char * p, u_char si2)
+{				// 7c 06 88  90 21 42 00 bb
+
+	p[0] = 0;
+	p[1] = 0x40;		// Intermediate rate: 16 kbit/s jj 2000.02.19
+	p[2] = 0x80;
+	if (si2 & 32)		// 7 data bits
+
+		p[2] += 16;
+	else			// 8 data bits
+
+		p[2] += 24;
+
+	if (si2 & 16)		// 2 stop bits
+
+		p[2] += 96;
+	else			// 1 stop bit
+
+		p[2] += 32;
+
+	if (si2 & 8)		// even parity
+
+		p[2] += 2;
+	else			// no parity
+
+		p[2] += 3;
+
+	switch (si2 & 0x07) {
+		case 0:
+			p[0] = 66;	// 1200 bit/s
+
+			break;
+		case 1:
+			p[0] = 88;	// 1200/75 bit/s
+
+			break;
+		case 2:
+			p[0] = 87;	// 75/1200 bit/s
+
+			break;
+		case 3:
+			p[0] = 67;	// 2400 bit/s
+
+			break;
+		case 4:
+			p[0] = 69;	// 4800 bit/s
+
+			break;
+		case 5:
+			p[0] = 72;	// 9600 bit/s
+
+			break;
+		case 6:
+			p[0] = 73;	// 14400 bit/s
+
+			break;
+		case 7:
+			p[0] = 75;	// 19200 bit/s
+
+			break;
+	}
+	return p + 3;
+}
+
+static u_char
+EncodeSyncParams(u_char si2, u_char ai)
+{
+
+	switch (si2) {
+		case 0:
+			return ai + 2;	// 1200 bit/s
+
+		case 1:
+			return ai + 24;		// 1200/75 bit/s
+
+		case 2:
+			return ai + 23;		// 75/1200 bit/s
+
+		case 3:
+			return ai + 3;	// 2400 bit/s
+
+		case 4:
+			return ai + 5;	// 4800 bit/s
+
+		case 5:
+			return ai + 8;	// 9600 bit/s
+
+		case 6:
+			return ai + 9;	// 14400 bit/s
+
+		case 7:
+			return ai + 11;		// 19200 bit/s
+
+		case 8:
+			return ai + 14;		// 48000 bit/s
+
+		case 9:
+			return ai + 15;		// 56000 bit/s
+
+		case 15:
+			return ai + 40;		// negotiate bit/s
+
+		default:
+			break;
+	}
+	return ai;
+}
+
+
+static u_char
+DecodeASyncParams(u_char si2, u_char * p)
+{
+	u_char info;
+
+	switch (p[5]) {
+		case 66:	// 1200 bit/s
+
+			break;	// si2 don't change
+
+		case 88:	// 1200/75 bit/s
+
+			si2 += 1;
+			break;
+		case 87:	// 75/1200 bit/s
+
+			si2 += 2;
+			break;
+		case 67:	// 2400 bit/s
+
+			si2 += 3;
+			break;
+		case 69:	// 4800 bit/s
+
+			si2 += 4;
+			break;
+		case 72:	// 9600 bit/s
+
+			si2 += 5;
+			break;
+		case 73:	// 14400 bit/s
+
+			si2 += 6;
+			break;
+		case 75:	// 19200 bit/s
+
+			si2 += 7;
+			break;
+	}
+
+	info = p[7] & 0x7f;
+	if ((info & 16) && (!(info & 8)))	// 7 data bits
+
+		si2 += 32;	// else 8 data bits
+
+	if ((info & 96) == 96)	// 2 stop bits
+
+		si2 += 16;	// else 1 stop bit
+
+	if ((info & 2) && (!(info & 1)))	// even parity
+
+		si2 += 8;	// else no parity
+
+	return si2;
+}
+
+
+static u_char
+DecodeSyncParams(u_char si2, u_char info)
+{
+	info &= 0x7f;
+	switch (info) {
+		case 40:	// bit/s negotiation failed  ai := 165 not 175!
+
+			return si2 + 15;
+		case 15:	// 56000 bit/s failed, ai := 0 not 169 !
+
+			return si2 + 9;
+		case 14:	// 48000 bit/s
+
+			return si2 + 8;
+		case 11:	// 19200 bit/s
+
+			return si2 + 7;
+		case 9:	// 14400 bit/s
+
+			return si2 + 6;
+		case 8:	// 9600  bit/s
+
+			return si2 + 5;
+		case 5:	// 4800  bit/s
+
+			return si2 + 4;
+		case 3:	// 2400  bit/s
+
+			return si2 + 3;
+		case 23:	// 75/1200 bit/s
+
+			return si2 + 2;
+		case 24:	// 1200/75 bit/s
+
+			return si2 + 1;
+		default:	// 1200 bit/s
+
+			return si2;
+	}
+}
+
+static u_char
+DecodeSI2(struct sk_buff *skb)
+{
+	u_char *p;		//, *pend=skb->data + skb->len;
+
+	if ((p = findie(skb->data, skb->len, 0x7c, 0))) {
+		switch (p[4] & 0x0f) {
+			case 0x01:
+				if (p[1] == 0x04)	// sync. Bitratenadaption
+
+					return DecodeSyncParams(160, p[5]);	// V.110/X.30
+
+				else if (p[1] == 0x06)	// async. Bitratenadaption
+
+					return DecodeASyncParams(192, p);	// V.110/X.30
+
+				break;
+			case 0x08:	// if (p[5] == 0x02) // sync. Bitratenadaption
+				if (p[1] > 3) 
+					return DecodeSyncParams(176, p[5]);	// V.120
+				break;
+		}
+	}
+	return 0;
+}
+
+#endif
+
+
+static void
+l3ni1_setup_req(struct l3_process *pc, u_char pr,
+		 void *arg)
+{
+	struct sk_buff *skb;
+	u_char tmp[128];
+	u_char *p = tmp;
+
+	u_char *teln;
+	u_char *sub;
+	u_char *sp;
+	int l;
+
+	MsgHead(p, pc->callref, MT_SETUP);
+
+	teln = pc->para.setup.phone;
+
+	*p++ = 0xa1;		/* complete indicator */
+	/*
+	 * Set Bearer Capability, Map info from 1TR6-convention to NI1
+	 */
+	switch (pc->para.setup.si1) {
+	case 1:	                  /* Telephony                                */
+		*p++ = IE_BEARER;
+		*p++ = 0x3;	  /* Length                                   */
+		*p++ = 0x90;	  /* 3.1khz Audio      			      */
+		*p++ = 0x90;	  /* Circuit-Mode 64kbps                      */
+		*p++ = 0xa2;	  /* u-Law Audio                              */
+		break;
+	case 5:	                  /* Datatransmission 64k, BTX                */
+	case 7:	                  /* Datatransmission 64k                     */
+	default:
+		*p++ = IE_BEARER;
+		*p++ = 0x2;	  /* Length                                   */
+		*p++ = 0x88;	  /* Coding Std. CCITT, unrestr. dig. Inform. */
+		*p++ = 0x90;	  /* Circuit-Mode 64kbps                      */
+		break;
+	}
+
+	sub = NULL;
+	sp = teln;
+	while (*sp) {
+		if ('.' == *sp) {
+			sub = sp;
+			*sp = 0;
+		} else
+			sp++;
+	}
+	
+	*p++ = IE_KEYPAD;
+	*p++ = strlen(teln);
+	while (*teln)
+		*p++ = (*teln++) & 0x7F;
+
+	if (sub)
+		*sub++ = '.';
+	
+#if EXT_BEARER_CAPS
+	if ((pc->para.setup.si2 >= 160) && (pc->para.setup.si2 <= 175)) {	// sync. Bitratenadaption, V.110/X.30
+
+		*p++ = IE_LLC;
+		*p++ = 0x04;
+		*p++ = 0x88;
+		*p++ = 0x90;
+		*p++ = 0x21;
+		*p++ = EncodeSyncParams(pc->para.setup.si2 - 160, 0x80);
+	} else if ((pc->para.setup.si2 >= 176) && (pc->para.setup.si2 <= 191)) {	// sync. Bitratenadaption, V.120
+
+		*p++ = IE_LLC;
+		*p++ = 0x05;
+		*p++ = 0x88;
+		*p++ = 0x90;
+		*p++ = 0x28;
+		*p++ = EncodeSyncParams(pc->para.setup.si2 - 176, 0);
+		*p++ = 0x82;
+	} else if (pc->para.setup.si2 >= 192) {		// async. Bitratenadaption, V.110/X.30
+
+		*p++ = IE_LLC;
+		*p++ = 0x06;
+		*p++ = 0x88;
+		*p++ = 0x90;
+		*p++ = 0x21;
+		p = EncodeASyncParams(p, pc->para.setup.si2 - 192);
+	} else {
+	  switch (pc->para.setup.si1) {
+		case 1:	                /* Telephony                                */
+			*p++ = IE_LLC;
+			*p++ = 0x3;	/* Length                                   */
+			*p++ = 0x90;	/* Coding Std. CCITT, 3.1 kHz audio         */
+			*p++ = 0x90;	/* Circuit-Mode 64kbps                      */
+			*p++ = 0xa2;	/* u-Law Audio                              */
+			break;
+		case 5:	                /* Datatransmission 64k, BTX                */
+		case 7:	                /* Datatransmission 64k                     */
+		default:
+			*p++ = IE_LLC;
+			*p++ = 0x2;	/* Length                                   */
+			*p++ = 0x88;	/* Coding Std. CCITT, unrestr. dig. Inform. */
+			*p++ = 0x90;	/* Circuit-Mode 64kbps                      */
+			break;
+	  }
+	}
+#endif
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+{
+		return;
+}
+	memcpy(skb_put(skb, l), tmp, l);
+	L3DelTimer(&pc->timer);
+	L3AddTimer(&pc->timer, T303, CC_T303);
+	newl3state(pc, 1);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+}
+
+static void
+l3ni1_call_proc(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int id, ret;
+
+	if ((id = l3ni1_get_channel_id(pc, skb)) >= 0) {
+		if ((0 == id) || ((3 == id) && (0x10 == pc->para.moderate))) {
+			if (pc->debug & L3_DEB_WARN)
+				l3_debug(pc->st, "setup answer with wrong chid %x", id);
+			pc->para.cause = 100;
+			l3ni1_status_send(pc, pr, NULL);
+			return;
+		}
+		pc->para.bchannel = id;
+	} else if (1 == pc->state) {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "setup answer wrong chid (ret %d)", id);
+		if (id == -1)
+			pc->para.cause = 96;
+		else
+			pc->para.cause = 100;
+		l3ni1_status_send(pc, pr, NULL);
+		return;
+	}
+	/* Now we are on none mandatory IEs */
+	ret = check_infoelements(pc, skb, ie_CALL_PROCEEDING);
+	if (ERR_IE_COMPREHENSION == ret) {
+		l3ni1_std_ie_err(pc, ret);
+		return;
+	}
+	L3DelTimer(&pc->timer);
+	newl3state(pc, 3);
+	L3AddTimer(&pc->timer, T310, CC_T310);
+	if (ret) /* STATUS for none mandatory IE errors after actions are taken */
+		l3ni1_std_ie_err(pc, ret);
+	pc->st->l3.l3l4(pc->st, CC_PROCEEDING | INDICATION, pc);
+}
+
+static void
+l3ni1_setup_ack(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int id, ret;
+
+	if ((id = l3ni1_get_channel_id(pc, skb)) >= 0) {
+		if ((0 == id) || ((3 == id) && (0x10 == pc->para.moderate))) {
+			if (pc->debug & L3_DEB_WARN)
+				l3_debug(pc->st, "setup answer with wrong chid %x", id);
+			pc->para.cause = 100;
+			l3ni1_status_send(pc, pr, NULL);
+			return;
+		}
+		pc->para.bchannel = id;
+	} else {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "setup answer wrong chid (ret %d)", id);
+		if (id == -1)
+			pc->para.cause = 96;
+		else
+			pc->para.cause = 100;
+		l3ni1_status_send(pc, pr, NULL);
+		return;
+	}
+	/* Now we are on none mandatory IEs */
+	ret = check_infoelements(pc, skb, ie_SETUP_ACKNOWLEDGE);
+	if (ERR_IE_COMPREHENSION == ret) {
+		l3ni1_std_ie_err(pc, ret);
+		return;
+	}
+	L3DelTimer(&pc->timer);
+	newl3state(pc, 2);
+	L3AddTimer(&pc->timer, T304, CC_T304);
+	if (ret) /* STATUS for none mandatory IE errors after actions are taken */
+		l3ni1_std_ie_err(pc, ret);
+	pc->st->l3.l3l4(pc->st, CC_MORE_INFO | INDICATION, pc);
+}
+
+static void
+l3ni1_disconnect(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	u_char *p;
+	int ret;
+	u_char cause = 0;
+
+	StopAllL3Timer(pc);
+	if ((ret = l3ni1_get_cause(pc, skb))) {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "DISC get_cause ret(%d)", ret);
+		if (ret < 0)
+			cause = 96;
+		else if (ret > 0)
+			cause = 100;
+	} 
+	if ((p = findie(skb->data, skb->len, IE_FACILITY, 0)))
+		l3ni1_parse_facility(pc->st, pc, pc->callref, p);
+	ret = check_infoelements(pc, skb, ie_DISCONNECT);
+	if (ERR_IE_COMPREHENSION == ret)
+		cause = 96;
+	else if ((!cause) && (ERR_IE_UNRECOGNIZED == ret))
+		cause = 99;
+	ret = pc->state;
+	newl3state(pc, 12);
+	if (cause)
+		newl3state(pc, 19);
+       	if (11 != ret)
+		pc->st->l3.l3l4(pc->st, CC_DISCONNECT | INDICATION, pc);
+       	else if (!cause)
+		   l3ni1_release_req(pc, pr, NULL);
+	if (cause) {
+		l3ni1_message_cause(pc, MT_RELEASE, cause);
+		L3AddTimer(&pc->timer, T308, CC_T308_1);
+	}
+}
+
+static void
+l3ni1_connect(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int ret;
+
+	ret = check_infoelements(pc, skb, ie_CONNECT);
+	if (ERR_IE_COMPREHENSION == ret) {
+		l3ni1_std_ie_err(pc, ret);
+		return;
+	}
+	L3DelTimer(&pc->timer);	/* T310 */
+	newl3state(pc, 10);
+	pc->para.chargeinfo = 0;
+	/* here should inserted COLP handling KKe */
+	if (ret)
+		l3ni1_std_ie_err(pc, ret);
+	pc->st->l3.l3l4(pc->st, CC_SETUP | CONFIRM, pc);
+}
+
+static void
+l3ni1_alerting(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int ret;
+
+	ret = check_infoelements(pc, skb, ie_ALERTING);
+	if (ERR_IE_COMPREHENSION == ret) {
+		l3ni1_std_ie_err(pc, ret);
+		return;
+	}
+	L3DelTimer(&pc->timer);	/* T304 */
+	newl3state(pc, 4);
+	if (ret)
+		l3ni1_std_ie_err(pc, ret);
+	pc->st->l3.l3l4(pc->st, CC_ALERTING | INDICATION, pc);
+}
+
+static void
+l3ni1_setup(struct l3_process *pc, u_char pr, void *arg)
+{
+	u_char *p;
+	int bcfound = 0;
+	char tmp[80];
+	struct sk_buff *skb = arg;
+	int id;
+	int err = 0;
+
+	/*
+	 * Bearer Capabilities
+	 */
+	p = skb->data;
+	/* only the first occurence 'll be detected ! */
+	if ((p = findie(p, skb->len, 0x04, 0))) {
+		if ((p[1] < 2) || (p[1] > 11))
+			err = 1;
+		else {
+			pc->para.setup.si2 = 0;
+			switch (p[2] & 0x7f) {
+				case 0x00: /* Speech */
+				case 0x10: /* 3.1 Khz audio */
+					pc->para.setup.si1 = 1;
+					break;
+				case 0x08: /* Unrestricted digital information */
+					pc->para.setup.si1 = 7;
+/* JIM, 05.11.97 I wanna set service indicator 2 */
+#if EXT_BEARER_CAPS
+					pc->para.setup.si2 = DecodeSI2(skb);
+#endif
+					break;
+				case 0x09: /* Restricted digital information */
+					pc->para.setup.si1 = 2;
+					break;
+				case 0x11:
+					/* Unrestr. digital information  with 
+					 * tones/announcements ( or 7 kHz audio
+					 */
+					pc->para.setup.si1 = 3;
+					break;
+				case 0x18: /* Video */
+					pc->para.setup.si1 = 4;
+					break;
+				default:
+					err = 2;
+					break;
+			}
+			switch (p[3] & 0x7f) {
+				case 0x40: /* packed mode */
+					pc->para.setup.si1 = 8;
+					break;
+				case 0x10: /* 64 kbit */
+				case 0x11: /* 2*64 kbit */
+				case 0x13: /* 384 kbit */
+				case 0x15: /* 1536 kbit */
+				case 0x17: /* 1920 kbit */
+					pc->para.moderate = p[3] & 0x7f;
+					break;
+				default:
+					err = 3;
+					break;
+			}
+		}
+		if (pc->debug & L3_DEB_SI)
+			l3_debug(pc->st, "SI=%d, AI=%d",
+				pc->para.setup.si1, pc->para.setup.si2);
+		if (err) {
+			if (pc->debug & L3_DEB_WARN)
+				l3_debug(pc->st, "setup with wrong bearer(l=%d:%x,%x)",
+					p[1], p[2], p[3]);
+			pc->para.cause = 100;
+			l3ni1_msg_without_setup(pc, pr, NULL);
+			return;
+		}
+	} else {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "setup without bearer capabilities");
+		/* ETS 300-104 1.3.3 */
+		pc->para.cause = 96;
+		l3ni1_msg_without_setup(pc, pr, NULL);
+		return;
+	}
+	/*
+	 * Channel Identification
+	 */
+	if ((id = l3ni1_get_channel_id(pc, skb)) >= 0) {
+		if ((pc->para.bchannel = id)) {
+			if ((3 == id) && (0x10 == pc->para.moderate)) {
+				if (pc->debug & L3_DEB_WARN)
+					l3_debug(pc->st, "setup with wrong chid %x",
+						id);
+				pc->para.cause = 100;
+				l3ni1_msg_without_setup(pc, pr, NULL);
+				return;
+			}
+			bcfound++;
+		} else 
+                   { if (pc->debug & L3_DEB_WARN)
+			 l3_debug(pc->st, "setup without bchannel, call waiting");
+                     bcfound++;
+                   } 
+	} else {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "setup with wrong chid ret %d", id);
+		if (id == -1)
+			pc->para.cause = 96;
+		else
+			pc->para.cause = 100;
+		l3ni1_msg_without_setup(pc, pr, NULL);
+		return;
+	}
+	/* Now we are on none mandatory IEs */
+	err = check_infoelements(pc, skb, ie_SETUP);
+	if (ERR_IE_COMPREHENSION == err) {
+		pc->para.cause = 96;
+		l3ni1_msg_without_setup(pc, pr, NULL);
+		return;
+	}
+	p = skb->data;
+	if ((p = findie(p, skb->len, 0x70, 0)))
+		iecpy(pc->para.setup.eazmsn, p, 1);
+	else
+		pc->para.setup.eazmsn[0] = 0;
+
+	p = skb->data;
+	if ((p = findie(p, skb->len, 0x71, 0))) {
+		/* Called party subaddress */
+		if ((p[1] >= 2) && (p[2] == 0x80) && (p[3] == 0x50)) {
+			tmp[0] = '.';
+			iecpy(&tmp[1], p, 2);
+			strcat(pc->para.setup.eazmsn, tmp);
+		} else if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "wrong called subaddress");
+	}
+	p = skb->data;
+	if ((p = findie(p, skb->len, 0x6c, 0))) {
+		pc->para.setup.plan = p[2];
+		if (p[2] & 0x80) {
+			iecpy(pc->para.setup.phone, p, 1);
+			pc->para.setup.screen = 0;
+		} else {
+			iecpy(pc->para.setup.phone, p, 2);
+			pc->para.setup.screen = p[3];
+		}
+	} else {
+		pc->para.setup.phone[0] = 0;
+		pc->para.setup.plan = 0;
+		pc->para.setup.screen = 0;
+	}
+	p = skb->data;
+	if ((p = findie(p, skb->len, 0x6d, 0))) {
+		/* Calling party subaddress */
+		if ((p[1] >= 2) && (p[2] == 0x80) && (p[3] == 0x50)) {
+			tmp[0] = '.';
+			iecpy(&tmp[1], p, 2);
+			strcat(pc->para.setup.phone, tmp);
+		} else if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "wrong calling subaddress");
+	}
+	newl3state(pc, 6);
+	if (err) /* STATUS for none mandatory IE errors after actions are taken */
+		l3ni1_std_ie_err(pc, err);
+	pc->st->l3.l3l4(pc->st, CC_SETUP | INDICATION, pc);
+}
+
+static void
+l3ni1_reset(struct l3_process *pc, u_char pr, void *arg)
+{
+	ni1_release_l3_process(pc);
+}
+
+static void
+l3ni1_disconnect_req(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb;
+	u_char tmp[16+40];
+	u_char *p = tmp;
+	int l;
+	u_char cause = 16;
+
+	if (pc->para.cause != NO_CAUSE)
+		cause = pc->para.cause;
+
+	StopAllL3Timer(pc);
+
+	MsgHead(p, pc->callref, MT_DISCONNECT);
+
+	*p++ = IE_CAUSE;
+	*p++ = 0x2;
+	*p++ = 0x80;
+	*p++ = cause | 0x80;
+
+        if (pc->prot.ni1.uus1_data[0])
+	 { *p++ = IE_USER_USER; /* UUS info element */
+           *p++ = strlen(pc->prot.ni1.uus1_data) + 1;
+           *p++ = 0x04; /* IA5 chars */
+           strcpy(p,pc->prot.ni1.uus1_data);
+           p += strlen(pc->prot.ni1.uus1_data);
+           pc->prot.ni1.uus1_data[0] = '\0';   
+         } 
+
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	newl3state(pc, 11);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+	L3AddTimer(&pc->timer, T305, CC_T305);
+}
+
+static void
+l3ni1_setup_rsp(struct l3_process *pc, u_char pr,
+		 void *arg)
+{
+        if (!pc->para.bchannel) 
+	 { if (pc->debug & L3_DEB_WARN)
+	       l3_debug(pc->st, "D-chan connect for waiting call");
+           l3ni1_disconnect_req(pc, pr, arg);
+           return;
+         }
+	newl3state(pc, 8);
+	if (pc->debug & L3_DEB_WARN)
+		l3_debug(pc->st, "D-chan connect for waiting call");
+	l3ni1_message_plus_chid(pc, MT_CONNECT); /* GE 05/09/00 */ 
+	L3DelTimer(&pc->timer);
+	L3AddTimer(&pc->timer, T313, CC_T313);
+}
+
+static void
+l3ni1_connect_ack(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int ret;
+
+	ret = check_infoelements(pc, skb, ie_CONNECT_ACKNOWLEDGE);
+	if (ERR_IE_COMPREHENSION == ret) {
+		l3ni1_std_ie_err(pc, ret);
+		return;
+	}
+	newl3state(pc, 10);
+	L3DelTimer(&pc->timer);
+	if (ret)
+		l3ni1_std_ie_err(pc, ret);
+	pc->st->l3.l3l4(pc->st, CC_SETUP_COMPL | INDICATION, pc);
+}
+
+static void
+l3ni1_reject_req(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb;
+	u_char tmp[16];
+	u_char *p = tmp;
+	int l;
+	u_char cause = 21;
+
+	if (pc->para.cause != NO_CAUSE)
+		cause = pc->para.cause;
+
+	MsgHead(p, pc->callref, MT_RELEASE_COMPLETE);
+
+	*p++ = IE_CAUSE;
+	*p++ = 0x2;
+	*p++ = 0x80;
+	*p++ = cause | 0x80;
+
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+	pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc);
+	newl3state(pc, 0);
+	ni1_release_l3_process(pc);
+}
+
+static void
+l3ni1_release(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	u_char *p;
+	int ret, cause=0;
+
+	StopAllL3Timer(pc);
+	if ((ret = l3ni1_get_cause(pc, skb))>0) {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "REL get_cause ret(%d)", ret);
+	} else if (ret<0)
+		pc->para.cause = NO_CAUSE;
+	if ((p = findie(skb->data, skb->len, IE_FACILITY, 0))) {
+		l3ni1_parse_facility(pc->st, pc, pc->callref, p);
+	}
+	if ((ret<0) && (pc->state != 11))
+		cause = 96;
+	else if (ret>0)
+		cause = 100;
+	ret = check_infoelements(pc, skb, ie_RELEASE);
+	if (ERR_IE_COMPREHENSION == ret)
+		cause = 96;
+	else if ((ERR_IE_UNRECOGNIZED == ret) && (!cause))
+		cause = 99;  
+	if (cause)
+		l3ni1_message_cause(pc, MT_RELEASE_COMPLETE, cause);
+	else
+		l3ni1_message(pc, MT_RELEASE_COMPLETE);
+	pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc);
+	newl3state(pc, 0);
+	ni1_release_l3_process(pc);
+}
+
+static void
+l3ni1_alert_req(struct l3_process *pc, u_char pr,
+		 void *arg)
+{
+	newl3state(pc, 7);
+	if (!pc->prot.ni1.uus1_data[0]) 
+		l3ni1_message(pc, MT_ALERTING);
+	else
+		l3ni1_msg_with_uus(pc, MT_ALERTING); 
+}
+
+static void
+l3ni1_proceed_req(struct l3_process *pc, u_char pr,
+		   void *arg)
+{
+	newl3state(pc, 9);
+	l3ni1_message(pc, MT_CALL_PROCEEDING);
+	pc->st->l3.l3l4(pc->st, CC_PROCEED_SEND | INDICATION, pc); 
+}
+
+static void
+l3ni1_setup_ack_req(struct l3_process *pc, u_char pr,
+		   void *arg)
+{
+	newl3state(pc, 25);
+	L3DelTimer(&pc->timer);
+	L3AddTimer(&pc->timer, T302, CC_T302);
+	l3ni1_message(pc, MT_SETUP_ACKNOWLEDGE);
+}
+
+/********************************************/
+/* deliver a incoming display message to HL */
+/********************************************/
+static void
+l3ni1_deliver_display(struct l3_process *pc, int pr, u_char *infp)
+{       u_char len;
+        isdn_ctrl ic; 
+	struct IsdnCardState *cs;
+        char *p; 
+
+        if (*infp++ != IE_DISPLAY) return;
+        if ((len = *infp++) > 80) return; /* total length <= 82 */
+	if (!pc->chan) return;
+
+	p = ic.parm.display; 
+        while (len--)
+	  *p++ = *infp++;
+	*p = '\0';
+	ic.command = ISDN_STAT_DISPLAY;
+	cs = pc->st->l1.hardware;
+	ic.driver = cs->myid;
+	ic.arg = pc->chan->chan; 
+	cs->iif.statcallb(&ic);
+} /* l3ni1_deliver_display */
+
+
+static void
+l3ni1_progress(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int err = 0;
+	u_char *p;
+
+	if ((p = findie(skb->data, skb->len, IE_PROGRESS, 0))) {
+		if (p[1] != 2) {
+			err = 1;
+			pc->para.cause = 100;
+		} else if (!(p[2] & 0x70)) {
+			switch (p[2]) {
+				case 0x80:
+				case 0x81:
+				case 0x82:
+				case 0x84:
+				case 0x85:
+				case 0x87:
+				case 0x8a:
+					switch (p[3]) {
+						case 0x81:
+						case 0x82:
+						case 0x83:
+						case 0x84:
+						case 0x88:
+							break;
+						default:
+							err = 2;
+							pc->para.cause = 100;
+							break;
+					}
+					break;
+				default:
+					err = 3;
+					pc->para.cause = 100;
+					break;
+			}
+		}
+	} else {
+		pc->para.cause = 96;
+		err = 4;
+	}
+	if (err) {	
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "progress error %d", err);
+		l3ni1_status_send(pc, pr, NULL);
+		return;
+	}
+	/* Now we are on none mandatory IEs */
+	err = check_infoelements(pc, skb, ie_PROGRESS);
+	if (err)
+		l3ni1_std_ie_err(pc, err);
+	if (ERR_IE_COMPREHENSION != err)
+		pc->st->l3.l3l4(pc->st, CC_PROGRESS | INDICATION, pc);
+}
+
+static void
+l3ni1_notify(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int err = 0;
+	u_char *p;
+
+	if ((p = findie(skb->data, skb->len, IE_NOTIFY, 0))) {
+		if (p[1] != 1) {
+			err = 1;
+			pc->para.cause = 100;
+		} else {
+			switch (p[2]) {
+				case 0x80:
+				case 0x81:
+				case 0x82:
+					break;
+				default:
+					pc->para.cause = 100;
+					err = 2;
+					break;
+			}
+		}
+	} else {
+		pc->para.cause = 96;
+		err = 3;
+	}
+	if (err) {	
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "notify error %d", err);
+		l3ni1_status_send(pc, pr, NULL);
+		return;
+	}
+	/* Now we are on none mandatory IEs */
+	err = check_infoelements(pc, skb, ie_NOTIFY);
+	if (err)
+		l3ni1_std_ie_err(pc, err);
+	if (ERR_IE_COMPREHENSION != err)
+		pc->st->l3.l3l4(pc->st, CC_NOTIFY | INDICATION, pc);
+}
+
+static void
+l3ni1_status_enq(struct l3_process *pc, u_char pr, void *arg)
+{
+	int ret;
+	struct sk_buff *skb = arg;
+
+	ret = check_infoelements(pc, skb, ie_STATUS_ENQUIRY);
+	l3ni1_std_ie_err(pc, ret);
+	pc->para.cause = 30; /* response to STATUS_ENQUIRY */
+        l3ni1_status_send(pc, pr, NULL);
+}
+
+static void
+l3ni1_information(struct l3_process *pc, u_char pr, void *arg)
+{
+	int ret;
+	struct sk_buff *skb = arg;
+	u_char *p;
+	char tmp[32];
+
+	ret = check_infoelements(pc, skb, ie_INFORMATION);
+	if (ret)
+		l3ni1_std_ie_err(pc, ret);
+	if (pc->state == 25) { /* overlap receiving */
+		L3DelTimer(&pc->timer);
+		p = skb->data;
+		if ((p = findie(p, skb->len, 0x70, 0))) {
+			iecpy(tmp, p, 1);
+			strcat(pc->para.setup.eazmsn, tmp);
+			pc->st->l3.l3l4(pc->st, CC_MORE_INFO | INDICATION, pc);
+		}
+		L3AddTimer(&pc->timer, T302, CC_T302);
+	}
+}
+
+/******************************/
+/* handle deflection requests */
+/******************************/
+static void l3ni1_redir_req(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb;
+	u_char tmp[128];
+	u_char *p = tmp;
+        u_char *subp;
+        u_char len_phone = 0;
+        u_char len_sub = 0;
+	int l; 
+
+
+        strcpy(pc->prot.ni1.uus1_data,pc->chan->setup.eazmsn); /* copy uus element if available */
+        if (!pc->chan->setup.phone[0])
+          { pc->para.cause = -1;
+            l3ni1_disconnect_req(pc,pr,arg); /* disconnect immediately */
+            return;
+          } /* only uus */
+ 
+        if (pc->prot.ni1.invoke_id) 
+          free_invoke_id(pc->st,pc->prot.ni1.invoke_id);
+ 
+        if (!(pc->prot.ni1.invoke_id = new_invoke_id(pc->st))) 
+          return;
+
+        MsgHead(p, pc->callref, MT_FACILITY);
+
+        for (subp = pc->chan->setup.phone; (*subp) && (*subp != '.'); subp++) len_phone++; /* len of phone number */
+        if (*subp++ == '.') len_sub = strlen(subp) + 2; /* length including info subaddress element */ 
+
+	*p++ = 0x1c;   /* Facility info element */
+        *p++ = len_phone + len_sub + 2 + 2 + 8 + 3 + 3; /* length of element */
+        *p++ = 0x91;  /* remote operations protocol */
+        *p++ = 0xa1;  /* invoke component */
+	  
+        *p++ = len_phone + len_sub + 2 + 2 + 8 + 3; /* length of data */
+        *p++ = 0x02;  /* invoke id tag, integer */
+	*p++ = 0x01;  /* length */
+        *p++ = pc->prot.ni1.invoke_id;  /* invoke id */ 
+        *p++ = 0x02;  /* operation value tag, integer */
+	*p++ = 0x01;  /* length */
+        *p++ = 0x0D;  /* Call Deflect */
+	  
+        *p++ = 0x30;  /* sequence phone number */
+        *p++ = len_phone + 2 + 2 + 3 + len_sub; /* length */
+	  
+        *p++ = 0x30;  /* Deflected to UserNumber */
+        *p++ = len_phone+2+len_sub; /* length */
+        *p++ = 0x80; /* NumberDigits */
+	*p++ = len_phone; /* length */
+        for (l = 0; l < len_phone; l++)
+	 *p++ = pc->chan->setup.phone[l];
+
+        if (len_sub)
+	  { *p++ = 0x04; /* called party subaddress */
+            *p++ = len_sub - 2;
+            while (*subp) *p++ = *subp++;
+          }
+
+        *p++ = 0x01; /* screening identifier */
+        *p++ = 0x01;
+        *p++ = pc->chan->setup.screen;
+
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l))) return;
+	memcpy(skb_put(skb, l), tmp, l);
+
+        l3_msg(pc->st, DL_DATA | REQUEST, skb);
+} /* l3ni1_redir_req */
+
+/********************************************/
+/* handle deflection request in early state */
+/********************************************/
+static void l3ni1_redir_req_early(struct l3_process *pc, u_char pr, void *arg)
+{
+  l3ni1_proceed_req(pc,pr,arg);
+  l3ni1_redir_req(pc,pr,arg);
+} /* l3ni1_redir_req_early */
+
+/***********************************************/
+/* handle special commands for this protocol.  */
+/* Examples are call independant services like */
+/* remote operations with dummy  callref.      */
+/***********************************************/
+static int l3ni1_cmd_global(struct PStack *st, isdn_ctrl *ic)
+{ u_char id;
+  u_char temp[265];
+  u_char *p = temp;
+  int i, l, proc_len; 
+  struct sk_buff *skb;
+  struct l3_process *pc = NULL;
+
+  switch (ic->arg)
+   { case NI1_CMD_INVOKE:
+       if (ic->parm.ni1_io.datalen < 0) return(-2); /* invalid parameter */ 
+
+       for (proc_len = 1, i = ic->parm.ni1_io.proc >> 8; i; i++) 
+         i = i >> 8; /* add one byte */    
+       l = ic->parm.ni1_io.datalen + proc_len + 8; /* length excluding ie header */
+       if (l > 255) 
+         return(-2); /* too long */
+
+       if (!(id = new_invoke_id(st))) 
+         return(0); /* first get a invoke id -> return if no available */
+       
+       i = -1; 
+       MsgHead(p, i, MT_FACILITY); /* build message head */
+       *p++ = 0x1C; /* Facility IE */
+       *p++ = l; /* length of ie */
+       *p++ = 0x91; /* remote operations */
+       *p++ = 0xA1; /* invoke */
+       *p++ = l - 3; /* length of invoke */
+       *p++ = 0x02; /* invoke id tag */
+       *p++ = 0x01; /* length is 1 */
+       *p++ = id; /* invoke id */
+       *p++ = 0x02; /* operation */
+       *p++ = proc_len; /* length of operation */
+       
+       for (i = proc_len; i; i--)
+         *p++ = (ic->parm.ni1_io.proc >> (i-1)) & 0xFF;
+       memcpy(p, ic->parm.ni1_io.data, ic->parm.ni1_io.datalen); /* copy data */
+       l = (p - temp) + ic->parm.ni1_io.datalen; /* total length */         
+
+       if (ic->parm.ni1_io.timeout > 0)
+        if (!(pc = ni1_new_l3_process(st, -1)))
+          { free_invoke_id(st, id);
+            return(-2);
+          } 
+       pc->prot.ni1.ll_id = ic->parm.ni1_io.ll_id; /* remember id */ 
+       pc->prot.ni1.proc = ic->parm.ni1_io.proc; /* and procedure */
+
+       if (!(skb = l3_alloc_skb(l))) 
+         { free_invoke_id(st, id);
+           if (pc) ni1_release_l3_process(pc);
+           return(-2);
+         }
+       memcpy(skb_put(skb, l), temp, l);
+       
+       if (pc)
+        { pc->prot.ni1.invoke_id = id; /* remember id */
+          L3AddTimer(&pc->timer, ic->parm.ni1_io.timeout, CC_TNI1_IO | REQUEST);
+        }
+       
+       l3_msg(st, DL_DATA | REQUEST, skb);
+       ic->parm.ni1_io.hl_id = id; /* return id */
+       return(0);
+
+     case NI1_CMD_INVOKE_ABORT:
+       if ((pc = l3ni1_search_dummy_proc(st, ic->parm.ni1_io.hl_id)))
+	{ L3DelTimer(&pc->timer); /* remove timer */
+          ni1_release_l3_process(pc);
+          return(0); 
+        } 
+       else
+	{ l3_debug(st, "l3ni1_cmd_global abort unknown id");
+          return(-2);
+        } 
+       break;
+    
+     default: 
+       l3_debug(st, "l3ni1_cmd_global unknown cmd 0x%lx", ic->arg);
+       return(-1);  
+   } /* switch ic-> arg */
+  return(-1);
+} /* l3ni1_cmd_global */
+
+static void 
+l3ni1_io_timer(struct l3_process *pc)
+{ isdn_ctrl ic;
+  struct IsdnCardState *cs = pc->st->l1.hardware;
+
+  L3DelTimer(&pc->timer); /* remove timer */
+
+  ic.driver = cs->myid;
+  ic.command = ISDN_STAT_PROT;
+  ic.arg = NI1_STAT_INVOKE_ERR;
+  ic.parm.ni1_io.hl_id = pc->prot.ni1.invoke_id;
+  ic.parm.ni1_io.ll_id = pc->prot.ni1.ll_id;
+  ic.parm.ni1_io.proc = pc->prot.ni1.proc;
+  ic.parm.ni1_io.timeout= -1;
+  ic.parm.ni1_io.datalen = 0;
+  ic.parm.ni1_io.data = NULL;
+  free_invoke_id(pc->st, pc->prot.ni1.invoke_id);
+  pc->prot.ni1.invoke_id = 0; /* reset id */
+
+  cs->iif.statcallb(&ic);
+
+  ni1_release_l3_process(pc); 
+} /* l3ni1_io_timer */
+
+static void
+l3ni1_release_ind(struct l3_process *pc, u_char pr, void *arg)
+{
+	u_char *p;
+	struct sk_buff *skb = arg;
+	int callState = 0;
+	p = skb->data;
+
+	if ((p = findie(p, skb->len, IE_CALL_STATE, 0))) {
+		p++;
+		if (1 == *p++)
+			callState = *p;
+	}
+	if (callState == 0) {
+		/* ETS 300-104 7.6.1, 8.6.1, 10.6.1... and 16.1
+		 * set down layer 3 without sending any message
+		 */
+		pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc);
+		newl3state(pc, 0);
+		ni1_release_l3_process(pc);
+	} else {
+		pc->st->l3.l3l4(pc->st, CC_IGNORE | INDICATION, pc);
+	}
+}
+
+static void
+l3ni1_dummy(struct l3_process *pc, u_char pr, void *arg)
+{
+}
+
+static void
+l3ni1_t302(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+	pc->para.loc = 0;
+	pc->para.cause = 28; /* invalid number */
+	l3ni1_disconnect_req(pc, pr, NULL);
+	pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc);
+}
+
+static void
+l3ni1_t303(struct l3_process *pc, u_char pr, void *arg)
+{
+	if (pc->N303 > 0) {
+		pc->N303--;
+		L3DelTimer(&pc->timer);
+		l3ni1_setup_req(pc, pr, arg);
+	} else {
+		L3DelTimer(&pc->timer);
+		l3ni1_message_cause(pc, MT_RELEASE_COMPLETE, 102);
+		pc->st->l3.l3l4(pc->st, CC_NOSETUP_RSP, pc);
+		ni1_release_l3_process(pc);
+	}
+}
+
+static void
+l3ni1_t304(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+	pc->para.loc = 0;
+	pc->para.cause = 102;
+	l3ni1_disconnect_req(pc, pr, NULL);
+	pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc);
+
+}
+
+static void
+l3ni1_t305(struct l3_process *pc, u_char pr, void *arg)
+{
+	u_char tmp[16];
+	u_char *p = tmp;
+	int l;
+	struct sk_buff *skb;
+	u_char cause = 16;
+
+	L3DelTimer(&pc->timer);
+	if (pc->para.cause != NO_CAUSE)
+		cause = pc->para.cause;
+
+	MsgHead(p, pc->callref, MT_RELEASE);
+
+	*p++ = IE_CAUSE;
+	*p++ = 0x2;
+	*p++ = 0x80;
+	*p++ = cause | 0x80;
+
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	newl3state(pc, 19);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+	L3AddTimer(&pc->timer, T308, CC_T308_1);
+}
+
+static void
+l3ni1_t310(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+	pc->para.loc = 0;
+	pc->para.cause = 102;
+	l3ni1_disconnect_req(pc, pr, NULL);
+	pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc);
+}
+
+static void
+l3ni1_t313(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+	pc->para.loc = 0;
+	pc->para.cause = 102;
+	l3ni1_disconnect_req(pc, pr, NULL);
+	pc->st->l3.l3l4(pc->st, CC_CONNECT_ERR, pc);
+}
+
+static void
+l3ni1_t308_1(struct l3_process *pc, u_char pr, void *arg)
+{
+	newl3state(pc, 19);
+	L3DelTimer(&pc->timer);
+	l3ni1_message(pc, MT_RELEASE);
+	L3AddTimer(&pc->timer, T308, CC_T308_2);
+}
+
+static void
+l3ni1_t308_2(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+	pc->st->l3.l3l4(pc->st, CC_RELEASE_ERR, pc);
+	ni1_release_l3_process(pc);
+}
+
+static void
+l3ni1_t318(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+	pc->para.cause = 102;	/* Timer expiry */
+	pc->para.loc = 0;	/* local */
+	pc->st->l3.l3l4(pc->st, CC_RESUME_ERR, pc);
+	newl3state(pc, 19);
+	l3ni1_message(pc, MT_RELEASE);
+	L3AddTimer(&pc->timer, T308, CC_T308_1);
+}
+
+static void
+l3ni1_t319(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+	pc->para.cause = 102;	/* Timer expiry */
+	pc->para.loc = 0;	/* local */
+	pc->st->l3.l3l4(pc->st, CC_SUSPEND_ERR, pc);
+	newl3state(pc, 10);
+}
+
+static void
+l3ni1_restart(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+	pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc);
+	ni1_release_l3_process(pc);
+}
+
+static void
+l3ni1_status(struct l3_process *pc, u_char pr, void *arg)
+{
+	u_char *p;
+	struct sk_buff *skb = arg;
+	int ret; 
+	u_char cause = 0, callState = 0;
+	
+	if ((ret = l3ni1_get_cause(pc, skb))) {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "STATUS get_cause ret(%d)",ret);
+		if (ret < 0)
+			cause = 96;
+		else if (ret > 0)
+			cause = 100;
+	}
+	if ((p = findie(skb->data, skb->len, IE_CALL_STATE, 0))) {
+		p++;
+		if (1 == *p++) {
+			callState = *p;
+			if (!ie_in_set(pc, *p, l3_valid_states))
+				cause = 100;
+		} else
+			cause = 100;
+	} else
+		cause = 96;
+	if (!cause) { /*  no error before */
+		ret = check_infoelements(pc, skb, ie_STATUS);
+		if (ERR_IE_COMPREHENSION == ret)
+			cause = 96;
+		else if (ERR_IE_UNRECOGNIZED == ret)
+			cause = 99;
+	}
+	if (cause) {
+		u_char tmp;
+		
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "STATUS error(%d/%d)",ret,cause);
+		tmp = pc->para.cause;
+		pc->para.cause = cause;
+		l3ni1_status_send(pc, 0, NULL);
+		if (cause == 99)
+			pc->para.cause = tmp;
+		else
+			return;
+	}
+	cause = pc->para.cause;
+	if (((cause & 0x7f) == 111) && (callState == 0)) {
+		/* ETS 300-104 7.6.1, 8.6.1, 10.6.1...
+		 * if received MT_STATUS with cause == 111 and call
+		 * state == 0, then we must set down layer 3
+		 */
+		pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc);
+		newl3state(pc, 0);
+		ni1_release_l3_process(pc);
+	}
+}
+
+static void
+l3ni1_facility(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int ret;
+	
+	ret = check_infoelements(pc, skb, ie_FACILITY);
+	l3ni1_std_ie_err(pc, ret);
+ 	  {
+		u_char *p;
+		if ((p = findie(skb->data, skb->len, IE_FACILITY, 0)))
+			l3ni1_parse_facility(pc->st, pc, pc->callref, p);
+	}
+}
+
+static void
+l3ni1_suspend_req(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb;
+	u_char tmp[32];
+	u_char *p = tmp;
+	u_char i, l;
+	u_char *msg = pc->chan->setup.phone;
+
+	MsgHead(p, pc->callref, MT_SUSPEND);
+	l = *msg++;
+	if (l && (l <= 10)) {	/* Max length 10 octets */
+		*p++ = IE_CALL_ID;
+		*p++ = l;
+		for (i = 0; i < l; i++)
+			*p++ = *msg++;
+	} else if (l) {
+		l3_debug(pc->st, "SUS wrong CALL_ID len %d", l);
+		return;
+	}
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+	newl3state(pc, 15);
+	L3AddTimer(&pc->timer, T319, CC_T319);
+}
+
+static void
+l3ni1_suspend_ack(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int ret;
+
+	L3DelTimer(&pc->timer);
+	newl3state(pc, 0);
+	pc->para.cause = NO_CAUSE;
+	pc->st->l3.l3l4(pc->st, CC_SUSPEND | CONFIRM, pc);
+	/* We don't handle suspend_ack for IE errors now */
+	if ((ret = check_infoelements(pc, skb, ie_SUSPEND_ACKNOWLEDGE)))
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "SUSPACK check ie(%d)",ret);
+	ni1_release_l3_process(pc);
+}
+
+static void
+l3ni1_suspend_rej(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int ret;
+
+	if ((ret = l3ni1_get_cause(pc, skb))) {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "SUSP_REJ get_cause ret(%d)",ret);
+		if (ret < 0) 
+			pc->para.cause = 96;
+		else
+			pc->para.cause = 100;
+		l3ni1_status_send(pc, pr, NULL);
+		return;
+	}
+	ret = check_infoelements(pc, skb, ie_SUSPEND_REJECT);
+	if (ERR_IE_COMPREHENSION == ret) {
+		l3ni1_std_ie_err(pc, ret);
+		return;
+	}
+	L3DelTimer(&pc->timer);
+	pc->st->l3.l3l4(pc->st, CC_SUSPEND_ERR, pc);
+	newl3state(pc, 10);
+	if (ret) /* STATUS for none mandatory IE errors after actions are taken */
+		l3ni1_std_ie_err(pc, ret);
+}
+
+static void
+l3ni1_resume_req(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb;
+	u_char tmp[32];
+	u_char *p = tmp;
+	u_char i, l;
+	u_char *msg = pc->para.setup.phone;
+
+	MsgHead(p, pc->callref, MT_RESUME);
+
+	l = *msg++;
+	if (l && (l <= 10)) {	/* Max length 10 octets */
+		*p++ = IE_CALL_ID;
+		*p++ = l;
+		for (i = 0; i < l; i++)
+			*p++ = *msg++;
+	} else if (l) {
+		l3_debug(pc->st, "RES wrong CALL_ID len %d", l);
+		return;
+	}
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+	newl3state(pc, 17);
+	L3AddTimer(&pc->timer, T318, CC_T318);
+}
+
+static void
+l3ni1_resume_ack(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int id, ret;
+
+	if ((id = l3ni1_get_channel_id(pc, skb)) > 0) {
+		if ((0 == id) || ((3 == id) && (0x10 == pc->para.moderate))) {
+			if (pc->debug & L3_DEB_WARN)
+				l3_debug(pc->st, "resume ack with wrong chid %x", id);
+			pc->para.cause = 100;
+			l3ni1_status_send(pc, pr, NULL);
+			return;
+		}
+		pc->para.bchannel = id;
+	} else if (1 == pc->state) {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "resume ack without chid (ret %d)", id);
+		pc->para.cause = 96;
+		l3ni1_status_send(pc, pr, NULL);
+		return;
+	}
+	ret = check_infoelements(pc, skb, ie_RESUME_ACKNOWLEDGE);
+	if (ERR_IE_COMPREHENSION == ret) {
+		l3ni1_std_ie_err(pc, ret);
+		return;
+	}
+	L3DelTimer(&pc->timer);
+	pc->st->l3.l3l4(pc->st, CC_RESUME | CONFIRM, pc);
+	newl3state(pc, 10);
+	if (ret) /* STATUS for none mandatory IE errors after actions are taken */
+		l3ni1_std_ie_err(pc, ret);
+}
+
+static void
+l3ni1_resume_rej(struct l3_process *pc, u_char pr, void *arg)
+{
+	struct sk_buff *skb = arg;
+	int ret;
+
+	if ((ret = l3ni1_get_cause(pc, skb))) {
+		if (pc->debug & L3_DEB_WARN)
+			l3_debug(pc->st, "RES_REJ get_cause ret(%d)",ret);
+		if (ret < 0) 
+			pc->para.cause = 96;
+		else
+			pc->para.cause = 100;
+		l3ni1_status_send(pc, pr, NULL);
+		return;
+	}
+	ret = check_infoelements(pc, skb, ie_RESUME_REJECT);
+	if (ERR_IE_COMPREHENSION == ret) {
+		l3ni1_std_ie_err(pc, ret);
+		return;
+	}
+	L3DelTimer(&pc->timer);
+	pc->st->l3.l3l4(pc->st, CC_RESUME_ERR, pc);
+	newl3state(pc, 0);
+	if (ret) /* STATUS for none mandatory IE errors after actions are taken */
+		l3ni1_std_ie_err(pc, ret);
+	ni1_release_l3_process(pc);
+}
+
+static void
+l3ni1_global_restart(struct l3_process *pc, u_char pr, void *arg)
+{
+	u_char tmp[32];
+	u_char *p;
+	u_char ri, ch = 0, chan = 0;
+	int l;
+	struct sk_buff *skb = arg;
+	struct l3_process *up;
+
+	newl3state(pc, 2);
+	L3DelTimer(&pc->timer);
+	p = skb->data;
+	if ((p = findie(p, skb->len, IE_RESTART_IND, 0))) {
+		ri = p[2];
+		l3_debug(pc->st, "Restart %x", ri);
+	} else {
+		l3_debug(pc->st, "Restart without restart IE");
+		ri = 0x86;
+	}
+	p = skb->data;
+	if ((p = findie(p, skb->len, IE_CHANNEL_ID, 0))) {
+		chan = p[2] & 3;
+		ch = p[2];
+		if (pc->st->l3.debug)
+			l3_debug(pc->st, "Restart for channel %d", chan);
+	}
+	newl3state(pc, 2);
+	up = pc->st->l3.proc;
+	while (up) {
+		if ((ri & 7) == 7)
+			up->st->lli.l4l3(up->st, CC_RESTART | REQUEST, up);
+		else if (up->para.bchannel == chan)
+			up->st->lli.l4l3(up->st, CC_RESTART | REQUEST, up);
+		
+		up = up->next;
+	}
+	p = tmp;
+	MsgHead(p, pc->callref, MT_RESTART_ACKNOWLEDGE);
+	if (chan) {
+		*p++ = IE_CHANNEL_ID;
+		*p++ = 1;
+		*p++ = ch | 0x80;
+	}
+	*p++ = 0x79;		/* RESTART Ind */
+	*p++ = 1;
+	*p++ = ri;
+	l = p - tmp;
+	if (!(skb = l3_alloc_skb(l)))
+		return;
+	memcpy(skb_put(skb, l), tmp, l);
+	newl3state(pc, 0);
+	l3_msg(pc->st, DL_DATA | REQUEST, skb);
+}
+
+static void
+l3ni1_dl_reset(struct l3_process *pc, u_char pr, void *arg)
+{
+        pc->para.cause = 0x29;          /* Temporary failure */
+        pc->para.loc = 0;
+        l3ni1_disconnect_req(pc, pr, NULL);
+        pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc);
+}
+
+static void
+l3ni1_dl_release(struct l3_process *pc, u_char pr, void *arg)
+{
+        newl3state(pc, 0);
+        pc->para.cause = 0x1b;          /* Destination out of order */
+        pc->para.loc = 0;
+        pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc);
+        release_l3_process(pc);
+}
+
+static void
+l3ni1_dl_reestablish(struct l3_process *pc, u_char pr, void *arg)
+{
+        L3DelTimer(&pc->timer);
+        L3AddTimer(&pc->timer, T309, CC_T309);
+        l3_msg(pc->st, DL_ESTABLISH | REQUEST, NULL);
+}
+ 
+static void
+l3ni1_dl_reest_status(struct l3_process *pc, u_char pr, void *arg)
+{
+	L3DelTimer(&pc->timer);
+ 
+ 	pc->para.cause = 0x1F; /* normal, unspecified */
+	l3ni1_status_send(pc, 0, NULL);
+}
+
+static void l3ni1_SendSpid( struct l3_process *pc, u_char pr, struct sk_buff *skb, int iNewState )
+{
+	u_char         * p;
+	char           * pSPID;
+	struct Channel * pChan = pc->st->lli.userdata;
+	int              l;
+
+	if ( skb )
+		dev_kfree_skb( skb);
+
+	if ( !( pSPID = strchr( pChan->setup.eazmsn, ':' ) ) )
+	{
+		printk( KERN_ERR "SPID not supplied in EAZMSN %s\n", pChan->setup.eazmsn );
+		newl3state( pc, 0 );
+		pc->st->l3.l3l2( pc->st, DL_RELEASE | REQUEST, NULL );
+		return;
+	}
+
+	l = strlen( ++pSPID );
+	if ( !( skb = l3_alloc_skb( 5+l ) ) )
+	{
+		printk( KERN_ERR "HiSax can't get memory to send SPID\n" );
+		return;
+	}
+
+	p = skb_put( skb, 5 );
+	*p++ = PROTO_DIS_EURO;
+	*p++ = 0;
+	*p++ = MT_INFORMATION;
+	*p++ = IE_SPID;
+	*p++ = l;
+
+	memcpy( skb_put( skb, l ), pSPID, l );
+
+	newl3state( pc, iNewState );
+
+	L3DelTimer( &pc->timer );
+	L3AddTimer( &pc->timer, TSPID, CC_TSPID );
+
+	pc->st->l3.l3l2( pc->st, DL_DATA | REQUEST, skb );
+}
+
+static void l3ni1_spid_send( struct l3_process *pc, u_char pr, void *arg )
+{
+	l3ni1_SendSpid( pc, pr, arg, 20 );
+}
+
+void l3ni1_spid_epid( struct l3_process *pc, u_char pr, void *arg )
+{
+	struct sk_buff *skb = arg;
+
+	if ( skb->data[ 1 ] == 0 )
+		if ( skb->data[ 3 ] == IE_ENDPOINT_ID )
+		{
+			L3DelTimer( &pc->timer );
+			newl3state( pc, 0 );
+			l3_msg( pc->st, DL_ESTABLISH | CONFIRM, NULL );
+		}
+	dev_kfree_skb( skb);
+}
+
+static void l3ni1_spid_tout( struct l3_process *pc, u_char pr, void *arg )
+{
+	if ( pc->state < 22 )
+		l3ni1_SendSpid( pc, pr, arg, pc->state+1 );
+	else
+	{
+		L3DelTimer( &pc->timer );
+		dev_kfree_skb( arg);
+
+		printk( KERN_ERR "SPID not accepted\n" );
+		newl3state( pc, 0 );
+		pc->st->l3.l3l2( pc->st, DL_RELEASE | REQUEST, NULL );
+	}
+}
+
+/* *INDENT-OFF* */
+static struct stateentry downstatelist[] =
+{
+	{SBIT(0),
+	 CC_SETUP | REQUEST, l3ni1_setup_req},
+	{SBIT(0),
+	 CC_RESUME | REQUEST, l3ni1_resume_req},
+	{SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(6) | SBIT(7) | SBIT(8) | SBIT(9) | SBIT(10) | SBIT(25),
+	 CC_DISCONNECT | REQUEST, l3ni1_disconnect_req},
+	{SBIT(12),
+	 CC_RELEASE | REQUEST, l3ni1_release_req},
+	{ALL_STATES,
+	 CC_RESTART | REQUEST, l3ni1_restart},
+	{SBIT(6) | SBIT(25),
+	 CC_IGNORE | REQUEST, l3ni1_reset},
+	{SBIT(6) | SBIT(25),
+	 CC_REJECT | REQUEST, l3ni1_reject_req},
+	{SBIT(6) | SBIT(25),
+	 CC_PROCEED_SEND | REQUEST, l3ni1_proceed_req},
+	{SBIT(6),
+	 CC_MORE_INFO | REQUEST, l3ni1_setup_ack_req},
+	{SBIT(25),
+	 CC_MORE_INFO | REQUEST, l3ni1_dummy},
+	{SBIT(6) | SBIT(9) | SBIT(25),
+	 CC_ALERTING | REQUEST, l3ni1_alert_req},
+	{SBIT(6) | SBIT(7) | SBIT(9) | SBIT(25),
+	 CC_SETUP | RESPONSE, l3ni1_setup_rsp},
+	{SBIT(10),
+	 CC_SUSPEND | REQUEST, l3ni1_suspend_req},
+        {SBIT(7) | SBIT(9) | SBIT(25),
+         CC_REDIR | REQUEST, l3ni1_redir_req},
+        {SBIT(6),
+         CC_REDIR | REQUEST, l3ni1_redir_req_early},
+        {SBIT(9) | SBIT(25),
+         CC_DISCONNECT | REQUEST, l3ni1_disconnect_req},
+	{SBIT(25),
+	 CC_T302, l3ni1_t302},
+	{SBIT(1),
+	 CC_T303, l3ni1_t303},
+	{SBIT(2),
+	 CC_T304, l3ni1_t304},
+	{SBIT(3),
+	 CC_T310, l3ni1_t310},
+	{SBIT(8),
+	 CC_T313, l3ni1_t313},
+	{SBIT(11),
+	 CC_T305, l3ni1_t305},
+	{SBIT(15),
+	 CC_T319, l3ni1_t319},
+	{SBIT(17),
+	 CC_T318, l3ni1_t318},
+	{SBIT(19),
+	 CC_T308_1, l3ni1_t308_1},
+	{SBIT(19),
+	 CC_T308_2, l3ni1_t308_2},
+	{SBIT(10),
+	 CC_T309, l3ni1_dl_release},
+	{ SBIT( 20 ) | SBIT( 21 ) | SBIT( 22 ),
+	 CC_TSPID, l3ni1_spid_tout },
+};
+
+#define DOWNSLLEN \
+	(sizeof(downstatelist) / sizeof(struct stateentry))
+
+static struct stateentry datastatelist[] =
+{
+	{ALL_STATES,
+	 MT_STATUS_ENQUIRY, l3ni1_status_enq},
+	{ALL_STATES,
+	 MT_FACILITY, l3ni1_facility},
+	{SBIT(19),
+	 MT_STATUS, l3ni1_release_ind},
+	{ALL_STATES,
+	 MT_STATUS, l3ni1_status},
+	{SBIT(0),
+	 MT_SETUP, l3ni1_setup},
+	{SBIT(6) | SBIT(7) | SBIT(8) | SBIT(9) | SBIT(10) | SBIT(11) | SBIT(12) |
+	 SBIT(15) | SBIT(17) | SBIT(19) | SBIT(25),
+	 MT_SETUP, l3ni1_dummy},
+	{SBIT(1) | SBIT(2),
+	 MT_CALL_PROCEEDING, l3ni1_call_proc},
+	{SBIT(1),
+	 MT_SETUP_ACKNOWLEDGE, l3ni1_setup_ack},
+	{SBIT(2) | SBIT(3),
+	 MT_ALERTING, l3ni1_alerting},
+	{SBIT(2) | SBIT(3),
+	 MT_PROGRESS, l3ni1_progress},
+	{SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(9) | SBIT(10) |
+	 SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17) | SBIT(19) | SBIT(25),
+	 MT_INFORMATION, l3ni1_information},
+	{SBIT(10) | SBIT(11) | SBIT(15),
+	 MT_NOTIFY, l3ni1_notify},
+	{SBIT(0) | SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(10) |
+	 SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17) | SBIT(19) | SBIT(25),
+	 MT_RELEASE_COMPLETE, l3ni1_release_cmpl},
+	{SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(9) | SBIT(10) | SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17) | SBIT(25),
+	 MT_RELEASE, l3ni1_release},
+	{SBIT(19),  MT_RELEASE, l3ni1_release_ind},
+	{SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(9) | SBIT(10) | SBIT(11) | SBIT(15) | SBIT(17) | SBIT(25),
+	 MT_DISCONNECT, l3ni1_disconnect},
+	{SBIT(19),
+	 MT_DISCONNECT, l3ni1_dummy},
+	{SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4),
+	 MT_CONNECT, l3ni1_connect},
+	{SBIT(8),
+	 MT_CONNECT_ACKNOWLEDGE, l3ni1_connect_ack},
+	{SBIT(15),
+	 MT_SUSPEND_ACKNOWLEDGE, l3ni1_suspend_ack},
+	{SBIT(15),
+	 MT_SUSPEND_REJECT, l3ni1_suspend_rej},
+	{SBIT(17),
+	 MT_RESUME_ACKNOWLEDGE, l3ni1_resume_ack},
+	{SBIT(17),
+	 MT_RESUME_REJECT, l3ni1_resume_rej},
+};
+
+#define DATASLLEN \
+	(sizeof(datastatelist) / sizeof(struct stateentry))
+
+static struct stateentry globalmes_list[] =
+{
+	{ALL_STATES,
+	 MT_STATUS, l3ni1_status},
+	{SBIT(0),
+	 MT_RESTART, l3ni1_global_restart},
+/*	{SBIT(1),
+	 MT_RESTART_ACKNOWLEDGE, l3ni1_restart_ack},
+*/
+	{ SBIT( 0 ), MT_DL_ESTABLISHED, l3ni1_spid_send },
+	{ SBIT( 20 ) | SBIT( 21 ) | SBIT( 22 ), MT_INFORMATION, l3ni1_spid_epid },
+};
+#define GLOBALM_LEN \
+	(sizeof(globalmes_list) / sizeof(struct stateentry))
+
+static struct stateentry manstatelist[] =
+{
+        {SBIT(2),
+         DL_ESTABLISH | INDICATION, l3ni1_dl_reset},
+        {SBIT(10),
+         DL_ESTABLISH | CONFIRM, l3ni1_dl_reest_status},
+        {SBIT(10),
+         DL_RELEASE | INDICATION, l3ni1_dl_reestablish},
+        {ALL_STATES,
+         DL_RELEASE | INDICATION, l3ni1_dl_release},
+};
+
+#define MANSLLEN \
+        (sizeof(manstatelist) / sizeof(struct stateentry))
+/* *INDENT-ON* */
+
+
+static void
+global_handler(struct PStack *st, int mt, struct sk_buff *skb)
+{
+	u_char tmp[16];
+	u_char *p = tmp;
+	int l;
+	int i;
+	struct l3_process *proc = st->l3.global;
+
+	if ( skb )	
+		proc->callref = skb->data[2]; /* cr flag */
+	else
+		proc->callref = 0;
+	for (i = 0; i < GLOBALM_LEN; i++)
+		if ((mt == globalmes_list[i].primitive) &&
+		    ((1 << proc->state) & globalmes_list[i].state))
+			break;
+	if (i == GLOBALM_LEN) {
+		if (st->l3.debug & L3_DEB_STATE) {
+			l3_debug(st, "ni1 global state %d mt %x unhandled",
+				proc->state, mt);
+		}
+		MsgHead(p, proc->callref, MT_STATUS);
+		*p++ = IE_CAUSE;
+		*p++ = 0x2;
+		*p++ = 0x80;
+		*p++ = 81 |0x80;	/* invalid cr */
+		*p++ = 0x14;		/* CallState */
+		*p++ = 0x1;
+		*p++ = proc->state & 0x3f;
+		l = p - tmp;
+		if (!(skb = l3_alloc_skb(l)))
+			return;
+		memcpy(skb_put(skb, l), tmp, l);
+		l3_msg(proc->st, DL_DATA | REQUEST, skb);
+	} else {
+		if (st->l3.debug & L3_DEB_STATE) {
+			l3_debug(st, "ni1 global %d mt %x",
+				proc->state, mt);
+		}
+		globalmes_list[i].rout(proc, mt, skb);
+	}
+}
+
+static void
+ni1up(struct PStack *st, int pr, void *arg)
+{
+	int i, mt, cr, cause, callState;
+	char *ptr;
+	u_char *p;
+	struct sk_buff *skb = arg;
+	struct l3_process *proc;
+
+	switch (pr) {
+		case (DL_DATA | INDICATION):
+		case (DL_UNIT_DATA | INDICATION):
+			break;
+		case (DL_ESTABLISH | INDICATION):
+		case (DL_RELEASE | INDICATION):
+		case (DL_RELEASE | CONFIRM):
+			l3_msg(st, pr, arg);
+			return;
+			break;
+
+		case (DL_ESTABLISH | CONFIRM):
+			global_handler( st, MT_DL_ESTABLISHED, NULL );
+			return;
+
+		default:
+			printk(KERN_ERR "HiSax ni1up unknown pr=%04x\n", pr);
+			return;
+	}
+	if (skb->len < 3) {
+		l3_debug(st, "ni1up frame too short(%d)", skb->len);
+		dev_kfree_skb(skb);
+		return;
+	}
+
+	if (skb->data[0] != PROTO_DIS_EURO) {
+		if (st->l3.debug & L3_DEB_PROTERR) {
+			l3_debug(st, "ni1up%sunexpected discriminator %x message len %d",
+				 (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
+				 skb->data[0], skb->len);
+		}
+		dev_kfree_skb(skb);
+		return;
+	}
+	cr = getcallref(skb->data);
+	if (skb->len < ((skb->data[1] & 0x0f) + 3)) {
+		l3_debug(st, "ni1up frame too short(%d)", skb->len);
+		dev_kfree_skb(skb);
+		return;
+	}
+	mt = skb->data[skb->data[1] + 2];
+	if (st->l3.debug & L3_DEB_STATE)
+		l3_debug(st, "ni1up cr %d", cr);
+	if (cr == -2) {  /* wrong Callref */
+		if (st->l3.debug & L3_DEB_WARN)
+			l3_debug(st, "ni1up wrong Callref");
+		dev_kfree_skb(skb);
+		return;
+	} else if (cr == -1) {	/* Dummy Callref */
+		if (mt == MT_FACILITY)
+		{
+			if ((p = findie(skb->data, skb->len, IE_FACILITY, 0))) {
+				l3ni1_parse_facility(st, NULL, 
+					(pr == (DL_DATA | INDICATION)) ? -1 : -2, p); 
+				dev_kfree_skb(skb);
+				return;  
+			}
+		}
+		else
+		{
+			global_handler(st, mt, skb);
+			return;
+		}
+				
+		if (st->l3.debug & L3_DEB_WARN)
+			l3_debug(st, "ni1up dummy Callref (no facility msg or ie)");
+		dev_kfree_skb(skb);
+		return;
+	} else if ((((skb->data[1] & 0x0f) == 1) && (0==(cr & 0x7f))) ||
+		(((skb->data[1] & 0x0f) == 2) && (0==(cr & 0x7fff)))) {	/* Global CallRef */
+		if (st->l3.debug & L3_DEB_STATE)
+			l3_debug(st, "ni1up Global CallRef");
+		global_handler(st, mt, skb);
+		dev_kfree_skb(skb);
+		return;
+	} else if (!(proc = getl3proc(st, cr))) {
+		/* No transaction process exist, that means no call with
+		 * this callreference is active
+		 */
+		if (mt == MT_SETUP) {
+			/* Setup creates a new transaction process */
+			if (skb->data[2] & 0x80) {
+				/* Setup with wrong CREF flag */
+				if (st->l3.debug & L3_DEB_STATE)
+					l3_debug(st, "ni1up wrong CRef flag");
+				dev_kfree_skb(skb);
+				return;
+			}
+			if (!(proc = ni1_new_l3_process(st, cr))) {
+				/* May be to answer with RELEASE_COMPLETE and
+				 * CAUSE 0x2f "Resource unavailable", but this
+				 * need a new_l3_process too ... arghh
+				 */
+				dev_kfree_skb(skb);
+				return;
+			}
+		} else if (mt == MT_STATUS) {
+			cause = 0;
+			if ((ptr = findie(skb->data, skb->len, IE_CAUSE, 0)) != NULL) {
+				ptr++;
+				if (*ptr++ == 2)
+					ptr++;
+				cause = *ptr & 0x7f;
+			}
+			callState = 0;
+			if ((ptr = findie(skb->data, skb->len, IE_CALL_STATE, 0)) != NULL) {
+				ptr++;
+				if (*ptr++ == 2)
+					ptr++;
+				callState = *ptr;
+			}
+			/* ETS 300-104 part 2.4.1
+			 * if setup has not been made and a message type
+			 * MT_STATUS is received with call state == 0,
+			 * we must send nothing
+			 */
+			if (callState != 0) {
+				/* ETS 300-104 part 2.4.2
+				 * if setup has not been made and a message type
+				 * MT_STATUS is received with call state != 0,
+				 * we must send MT_RELEASE_COMPLETE cause 101
+				 */
+				if ((proc = ni1_new_l3_process(st, cr))) {
+					proc->para.cause = 101;
+					l3ni1_msg_without_setup(proc, 0, NULL);
+				}
+			}
+			dev_kfree_skb(skb);
+			return;
+		} else if (mt == MT_RELEASE_COMPLETE) {
+			dev_kfree_skb(skb);
+			return;
+		} else {
+			/* ETS 300-104 part 2
+			 * if setup has not been made and a message type
+			 * (except MT_SETUP and RELEASE_COMPLETE) is received,
+			 * we must send MT_RELEASE_COMPLETE cause 81 */
+			dev_kfree_skb(skb);
+			if ((proc = ni1_new_l3_process(st, cr))) {
+				proc->para.cause = 81;
+				l3ni1_msg_without_setup(proc, 0, NULL);
+			}
+			return;
+		}
+	}
+	if (l3ni1_check_messagetype_validity(proc, mt, skb)) {
+		dev_kfree_skb(skb);
+		return;
+	}
+	if ((p = findie(skb->data, skb->len, IE_DISPLAY, 0)) != NULL) 
+	  l3ni1_deliver_display(proc, pr, p); /* Display IE included */
+	for (i = 0; i < DATASLLEN; i++)
+		if ((mt == datastatelist[i].primitive) &&
+		    ((1 << proc->state) & datastatelist[i].state))
+			break;
+	if (i == DATASLLEN) {
+		if (st->l3.debug & L3_DEB_STATE) {
+			l3_debug(st, "ni1up%sstate %d mt %#x unhandled",
+				(pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
+				proc->state, mt);
+		}
+		if ((MT_RELEASE_COMPLETE != mt) && (MT_RELEASE != mt)) {
+			proc->para.cause = 101;
+			l3ni1_status_send(proc, pr, skb);
+		}
+	} else {
+		if (st->l3.debug & L3_DEB_STATE) {
+			l3_debug(st, "ni1up%sstate %d mt %x",
+				(pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
+				proc->state, mt);
+		}
+		datastatelist[i].rout(proc, pr, skb);
+	}
+	dev_kfree_skb(skb);
+	return;
+}
+
+static void
+ni1down(struct PStack *st, int pr, void *arg)
+{
+	int i, cr;
+	struct l3_process *proc;
+	struct Channel *chan;
+
+	if ((DL_ESTABLISH | REQUEST) == pr) {
+		l3_msg(st, pr, NULL);
+		return;
+	} else if (((CC_SETUP | REQUEST) == pr) || ((CC_RESUME | REQUEST) == pr)) {
+		chan = arg;
+		cr = newcallref();
+		cr |= 0x80;
+		if ((proc = ni1_new_l3_process(st, cr))) {
+			proc->chan = chan;
+			chan->proc = proc;
+			memcpy(&proc->para.setup, &chan->setup, sizeof(setup_parm));
+			proc->callref = cr;
+		}
+	} else {
+		proc = arg;
+	}
+	if (!proc) {
+		printk(KERN_ERR "HiSax ni1down without proc pr=%04x\n", pr);
+		return;
+	}
+
+	if ( pr == (CC_TNI1_IO | REQUEST)) {
+		l3ni1_io_timer(proc); /* timer expires */ 
+		return;
+	}  
+
+	for (i = 0; i < DOWNSLLEN; i++)
+		if ((pr == downstatelist[i].primitive) &&
+		    ((1 << proc->state) & downstatelist[i].state))
+			break;
+	if (i == DOWNSLLEN) {
+		if (st->l3.debug & L3_DEB_STATE) {
+			l3_debug(st, "ni1down state %d prim %#x unhandled",
+				proc->state, pr);
+		}
+	} else {
+		if (st->l3.debug & L3_DEB_STATE) {
+			l3_debug(st, "ni1down state %d prim %#x",
+				proc->state, pr);
+		}
+		downstatelist[i].rout(proc, pr, arg);
+	}
+}
+
+static void
+ni1man(struct PStack *st, int pr, void *arg)
+{
+        int i;
+        struct l3_process *proc = arg;
+
+        if (!proc) {
+                printk(KERN_ERR "HiSax ni1man without proc pr=%04x\n", pr);
+                return;
+        }
+        for (i = 0; i < MANSLLEN; i++)
+                if ((pr == manstatelist[i].primitive) &&
+                    ((1 << proc->state) & manstatelist[i].state))
+                        break;
+        if (i == MANSLLEN) {
+                if (st->l3.debug & L3_DEB_STATE) {
+                        l3_debug(st, "cr %d ni1man state %d prim %#x unhandled",
+                                proc->callref & 0x7f, proc->state, pr);
+                }
+        } else {
+                if (st->l3.debug & L3_DEB_STATE) {
+                        l3_debug(st, "cr %d ni1man state %d prim %#x",
+                                proc->callref & 0x7f, proc->state, pr);
+                }
+                manstatelist[i].rout(proc, pr, arg);
+        }
+}
+ 
+void
+setstack_ni1(struct PStack *st)
+{
+	char tmp[64];
+	int i;
+
+	st->lli.l4l3 = ni1down;
+	st->lli.l4l3_proto = l3ni1_cmd_global;
+	st->l2.l2l3 = ni1up;
+	st->l3.l3ml3 = ni1man;
+	st->l3.N303 = 1;
+	st->prot.ni1.last_invoke_id = 0;
+	st->prot.ni1.invoke_used[0] = 1; /* Bit 0 must always be set to 1 */
+	i = 1;
+	while (i < 32) 
+		st->prot.ni1.invoke_used[i++] = 0;   
+
+	if (!(st->l3.global = kmalloc(sizeof(struct l3_process), GFP_ATOMIC))) {
+		printk(KERN_ERR "HiSax can't get memory for ni1 global CR\n");
+	} else {
+		st->l3.global->state = 0;
+		st->l3.global->callref = 0;
+		st->l3.global->next = NULL;
+		st->l3.global->debug = L3_DEB_WARN;
+		st->l3.global->st = st;
+		st->l3.global->N303 = 1;
+		st->l3.global->prot.ni1.invoke_id = 0; 
+
+		L3InitTimer(st->l3.global, &st->l3.global->timer);
+	}
+	strcpy(tmp, ni1_revision);
+	printk(KERN_INFO "HiSax: National ISDN-1 Rev. %s\n", HiSax_getrev(tmp));
+}