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VIEWER: l3_1tr6.c MODE: TEXT (ASCII)
/* $Id: l3_1tr6.c,v 1.11 1997/04/06 22:54:18 keil Exp $

 *  German 1TR6 D-channel protocol
 *
 * Author       Karsten Keil (keil@temic-ech.spacenet.de)
 *
 *
 * $Log: l3_1tr6.c,v $
 * Revision 1.11  1997/04/06 22:54:18  keil
 * Using SKB's
 *
 * Revision 1.10  1997/03/13 20:37:58  keil
 * channel request added
 *
 * Revision 1.9  1997/02/11 01:37:40  keil
 * Changed setup-interface (incoming and outgoing)
 *
 * Revision 1.8  1997/01/27 23:20:21  keil
 * report revision only ones
 *
 * Revision 1.7  1997/01/21 22:30:07  keil
 * new statemachine; L3 timers
 *
 * Revision 1.6  1996/12/14 21:07:20  keil
 * additional states for CC_REJECT
 *
 * Revision 1.5  1996/12/08 19:55:17  keil
 * change CC_REJECT_REQ routine
 *
 * Revision 1.4  1996/10/30 10:18:01  keil
 * bugfixes in debugging output
 *
 * Revision 1.3  1996/10/27 22:15:37  keil
 * bugfix reject handling
 *
 * Revision 1.2  1996/10/13 23:08:56  keil
 * added missing state for callback reject
 *
 * Revision 1.1  1996/10/13 20:04:55  keil
 * Initial revision
 *
 *
 */

#define __NO_VERSION__
#include "hisax.h"
#include "l3_1tr6.h"
#include "isdnl3.h"
#include <linux/ctype.h>

extern char *HiSax_getrev(const char *revision);
const char *l3_1tr6_revision = "$Revision: 1.11 $";

#define MsgHead(ptr, cref, mty, dis) \
	*ptr++ = dis; \
	*ptr++ = 0x1; \
	*ptr++ = cref; \
	*ptr++ = mty

static void
l3_1TR6_message(struct PStack *st, u_char mt, u_char pd)
{
	struct sk_buff *skb;
	u_char *p;

	if (!(skb = l3_alloc_skb(4)))
		return;
	p = skb_put(skb, 4);
	MsgHead(p, st->l3.callref, mt, pd);
	st->l3.l3l2(st, DL_DATA, skb);
}

static void
l3_1tr6_setup_req(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb;
	u_char tmp[128];
	u_char *p = tmp;
	u_char *teln;
	u_char *eaz;
	u_char channel = 0;
	int l;


	st->l3.callref = st->pa->callref;
	MsgHead(p, st->l3.callref, MT_N1_SETUP, PROTO_DIS_N1);

	teln = st->pa->setup.phone;
	st->pa->spv = 0;
	if (!isdigit(*teln)) {
		switch (0x5f & *teln) {
			case 'S':
				st->pa->spv = 1;
				break;
			case 'C':
				channel = 0x08;
			case 'P':
				channel |= 0x80;
				teln++;
				if (*teln == '1')
					channel |= 0x01;
				else
					channel |= 0x02;
				break;
			default:
				if (st->l3.debug & L3_DEB_WARN)
					l3_debug(st, "Wrong MSN Code");
				break;
		}
		teln++;
	}
	if (channel) {
		*p++ = 0x18;	/* channel indicator */
		*p++ = 1;
		*p++ = channel;
	}
	if (st->pa->spv) {	/* SPV ? */
		/* NSF SPV */
		*p++ = WE0_netSpecFac;
		*p++ = 4;	/* Laenge */
		*p++ = 0;
		*p++ = FAC_SPV;	/* SPV */
		*p++ = st->pa->setup.si1;	/* 0 for all Services */
		*p++ = st->pa->setup.si2;	/* 0 for all Services */
		*p++ = WE0_netSpecFac;
		*p++ = 4;	/* Laenge */
		*p++ = 0;
		*p++ = FAC_Activate;	/* aktiviere SPV (default) */
		*p++ = st->pa->setup.si1;	/* 0 for all Services */
		*p++ = st->pa->setup.si2;	/* 0 for all Services */
	}
	eaz = st->pa->setup.eazmsn;
	if (*eaz) {
		*p++ = WE0_origAddr;
		*p++ = strlen(eaz) + 1;
		/* Classify as AnyPref. */
		*p++ = 0x81;	/* Ext = '1'B, Type = '000'B, Plan = '0001'B. */
		while (*eaz)
			*p++ = *eaz++ & 0x7f;
	}
	*p++ = WE0_destAddr;
	*p++ = strlen(teln) + 1;
	/* Classify as AnyPref. */
	*p++ = 0x81;		/* Ext = '1'B, Type = '000'B, Plan = '0001'B. */
	while (*teln)
		*p++ = *teln++ & 0x7f;

	*p++ = WE_Shift_F6;
	/* Codesatz 6 fuer Service */
	*p++ = WE6_serviceInd;
	*p++ = 2;		/* len=2 info,info2 */
	*p++ = st->pa->setup.si1;
	*p++ = st->pa->setup.si2;

	l = p - tmp;
	if (!(skb = l3_alloc_skb(l)))
		return;
	memcpy(skb_put(skb, l), tmp, l);
	L3DelTimer(&st->l3.timer);
	L3AddTimer(&st->l3.timer, st->l3.t303, CC_T303);
	newl3state(st, 1);
	st->l3.l3l2(st, DL_DATA, skb);

}

static void
l3_1tr6_setup(struct PStack *st, u_char pr, void *arg)
{
	u_char *p;
	int bcfound = 0;
	char tmp[80];
	struct sk_buff *skb = arg;

	p = skb->data;
	st->pa->callref = getcallref(p);
	st->l3.callref = 0x80 + st->pa->callref;

	/* Channel Identification */
	p = skb->data;
	if ((p = findie(p, skb->len, WE0_chanID, 0))) {
		st->pa->bchannel = p[2] & 0x3;
		bcfound++;
	} else if (st->l3.debug & L3_DEB_WARN)
		l3_debug(st, "setup without bchannel");

	p = skb->data;
	if ((p = findie(p, skb->len, WE6_serviceInd, 6))) {
		st->pa->setup.si1 = p[2];
		st->pa->setup.si2 = p[3];
	} else if (st->l3.debug & L3_DEB_WARN)
		l3_debug(st, "setup without service indicator");

	p = skb->data;
	if ((p = findie(p, skb->len, WE0_destAddr, 0)))
		iecpy(st->pa->setup.eazmsn, p, 1);
	else
		st->pa->setup.eazmsn[0] = 0;

	p = skb->data;
	if ((p = findie(p, skb->len, WE0_origAddr, 0))) {
		iecpy(st->pa->setup.phone, p, 1);
	} else
		st->pa->setup.phone[0] = 0;

	p = skb->data;
	st->pa->spv = 0;
	if ((p = findie(p, skb->len, WE0_netSpecFac, 0))) {
		if ((FAC_SPV == p[3]) || (FAC_Activate == p[3]))
			st->pa->spv = 1;
	}
	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);

	/* Signal all services, linklevel takes care of Service-Indicator */
	if (bcfound) {
		if ((st->pa->setup.si1 != 7) && (st->l3.debug & L3_DEB_WARN)) {
			sprintf(tmp, "non-digital call: %s -> %s",
				st->pa->setup.phone,
				st->pa->setup.eazmsn);
			l3_debug(st, tmp);
		}
		newl3state(st, 6);
		st->l3.l3l4(st, CC_SETUP_IND, NULL);
	}
}

static void
l3_1tr6_setup_ack(struct PStack *st, u_char pr, void *arg)
{
	u_char *p;
	struct sk_buff *skb = arg;

	L3DelTimer(&st->l3.timer);
	p = skb->data;
	newl3state(st, 2);
	if ((p = findie(p, skb->len, WE0_chanID, 0))) {
		st->pa->bchannel = p[2] & 0x3;
	} else if (st->l3.debug & L3_DEB_WARN)
		l3_debug(st, "setup answer without bchannel");
	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
	L3AddTimer(&st->l3.timer, st->l3.t304, CC_T304);
	st->l3.l3l4(st, CC_MORE_INFO, NULL);
}

static void
l3_1tr6_call_sent(struct PStack *st, u_char pr, void *arg)
{
	u_char *p;
	struct sk_buff *skb = arg;

	L3DelTimer(&st->l3.timer);
	p = skb->data;
	if ((p = findie(p, skb->len, WE0_chanID, 0))) {
		st->pa->bchannel = p[2] & 0x3;
	} else if (st->l3.debug & L3_DEB_WARN)
		l3_debug(st, "setup answer without bchannel");
	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
	L3AddTimer(&st->l3.timer, st->l3.t310, CC_T310);
	newl3state(st, 3);
	st->l3.l3l4(st, CC_PROCEEDING_IND, NULL);
}

static void
l3_1tr6_alert(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb = arg;

	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
	L3DelTimer(&st->l3.timer);	/* T304 */
	newl3state(st, 4);
	st->l3.l3l4(st, CC_ALERTING_IND, NULL);
}

static void
l3_1tr6_info(struct PStack *st, u_char pr, void *arg)
{
	u_char *p;
	int i, tmpcharge = 0;
	char a_charge[8], tmp[32];
	struct sk_buff *skb = arg;

	p = skb->data;
	if ((p = findie(p, skb->len, WE6_chargingInfo, 6))) {
		iecpy(a_charge, p, 1);
		for (i = 0; i < strlen(a_charge); i++) {
			tmpcharge *= 10;
			tmpcharge += a_charge[i] & 0xf;
		}
		if (tmpcharge > st->pa->chargeinfo) {
			st->pa->chargeinfo = tmpcharge;
			st->l3.l3l4(st, CC_INFO_CHARGE, NULL);
		}
		if (st->l3.debug & L3_DEB_CHARGE) {
			sprintf(tmp, "charging info %d", st->pa->chargeinfo);
			l3_debug(st, tmp);
		}
	} else if (st->l3.debug & L3_DEB_CHARGE)
		l3_debug(st, "charging info not found");
	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);

}

static void
l3_1tr6_info_s2(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb = arg;

	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
}

static void
l3_1tr6_connect(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb = arg;

	L3DelTimer(&st->l3.timer);	/* T310 */
	newl3state(st, 10);
	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
	st->pa->chargeinfo = 0;
	st->l3.l3l4(st, CC_SETUP_CNF, NULL);
}

static void
l3_1tr6_rel(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb = arg;
	u_char *p;

	p = skb->data;
	if ((p = findie(p, skb->len, WE0_cause, 0))) {
		if (p[1] > 0) {
			st->pa->cause = p[2];
			if (p[1] > 1)
				st->pa->loc = p[3];
			else
				st->pa->loc = 0;
		} else {
			st->pa->cause = 0;
			st->pa->loc = 0;
		}
	} else
		st->pa->cause = -1;
	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
	StopAllL3Timer(st);
	newl3state(st, 0);
	l3_1TR6_message(st, MT_N1_REL_ACK, PROTO_DIS_N1);
	st->l3.l3l4(st, CC_RELEASE_IND, NULL);
}

static void
l3_1tr6_rel_ack(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb = arg;

	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
	StopAllL3Timer(st);
	newl3state(st, 0);
	st->pa->cause = -1;
	st->l3.l3l4(st, CC_RELEASE_CNF, NULL);
}

static void
l3_1tr6_disc(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb = arg;
	u_char *p;
	int i, tmpcharge = 0;
	char a_charge[8], tmp[32];

	StopAllL3Timer(st);
	p = skb->data;
	if ((p = findie(p, skb->len, WE6_chargingInfo, 6))) {
		iecpy(a_charge, p, 1);
		for (i = 0; i < strlen(a_charge); i++) {
			tmpcharge *= 10;
			tmpcharge += a_charge[i] & 0xf;
		}
		if (tmpcharge > st->pa->chargeinfo) {
			st->pa->chargeinfo = tmpcharge;
			st->l3.l3l4(st, CC_INFO_CHARGE, NULL);
		}
		if (st->l3.debug & L3_DEB_CHARGE) {
			sprintf(tmp, "charging info %d", st->pa->chargeinfo);
			l3_debug(st, tmp);
		}
	} else if (st->l3.debug & L3_DEB_CHARGE)
		l3_debug(st, "charging info not found");


	p = skb->data;
	if ((p = findie(p, skb->len, WE0_cause, 0))) {
		if (p[1] > 0) {
			st->pa->cause = p[2];
			if (p[1] > 1)
				st->pa->loc = p[3];
			else
				st->pa->loc = 0;
		} else {
			st->pa->cause = 0;
			st->pa->loc = 0;
		}
	} else {
		if (st->l3.debug & L3_DEB_WARN)
			l3_debug(st, "cause not found");
		st->pa->cause = -1;
	}
	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
	newl3state(st, 12);
	st->l3.l3l4(st, CC_DISCONNECT_IND, NULL);
}


static void
l3_1tr6_connect_ack(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb = arg;

	SET_SKB_FREE(skb);
	dev_kfree_skb(skb, FREE_READ);
	newl3state(st, 10);
	st->pa->chargeinfo = 0;
	L3DelTimer(&st->l3.timer);
	st->l3.l3l4(st, CC_SETUP_COMPLETE_IND, NULL);
}

static void
l3_1tr6_alert_req(struct PStack *st, u_char pr, void *arg)
{
	newl3state(st, 7);
	l3_1TR6_message(st, MT_N1_ALERT, PROTO_DIS_N1);
}

static void
l3_1tr6_setup_rsp(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb;
	u_char tmp[24];
	u_char *p = tmp;
	int l;

	MsgHead(p, st->l3.callref, MT_N1_CONN, PROTO_DIS_N1);
	if (st->pa->spv) {	/* SPV ? */
		/* NSF SPV */
		*p++ = WE0_netSpecFac;
		*p++ = 4;	/* Laenge */
		*p++ = 0;
		*p++ = FAC_SPV;	/* SPV */
		*p++ = st->pa->setup.si1;
		*p++ = st->pa->setup.si2;
		*p++ = WE0_netSpecFac;
		*p++ = 4;	/* Laenge */
		*p++ = 0;
		*p++ = FAC_Activate;	/* aktiviere SPV */
		*p++ = st->pa->setup.si1;
		*p++ = st->pa->setup.si2;
	}
	newl3state(st, 8);
	l = p - tmp;
	if (!(skb = l3_alloc_skb(l)))
		return;
	memcpy(skb_put(skb, l), tmp, l);
	st->l3.l3l2(st, DL_DATA, skb);
	L3DelTimer(&st->l3.timer);
	L3AddTimer(&st->l3.timer, st->l3.t313, CC_T313);
}

static void
l3_1tr6_reset(struct PStack *st, u_char pr, void *arg)
{
	newl3state(st, 0);
}

static void
l3_1tr6_disconnect_req(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb;
	u_char tmp[16];
	u_char *p = tmp;
	int l;
	u_char cause = 0x10;
	u_char clen = 1;

	if (st->pa->cause > 0)
		cause = st->pa->cause;
	/* Map DSS1 causes */
	switch (cause & 0x7f) {
		case 0x10:
			clen = 0;
			break;
		case 0x15:
			cause = CAUSE_CallRejected;
			break;
	}
	StopAllL3Timer(st);
	MsgHead(p, st->l3.callref, MT_N1_DISC, PROTO_DIS_N1);
	*p++ = WE0_cause;
	*p++ = clen;		/* Laenge */
	if (clen)
		*p++ = cause | 0x80;
	newl3state(st, 11);
	l = p - tmp;
	if (!(skb = l3_alloc_skb(l)))
		return;
	memcpy(skb_put(skb, l), tmp, l);
	st->l3.l3l2(st, DL_DATA, skb);
	L3AddTimer(&st->l3.timer, st->l3.t305, CC_T305);
}

static void
l3_1tr6_release_req(struct PStack *st, u_char pr, void *arg)
{
	StopAllL3Timer(st);
	newl3state(st, 19);
	l3_1TR6_message(st, MT_N1_REL, PROTO_DIS_N1);
	L3AddTimer(&st->l3.timer, st->l3.t308, CC_T308_1);
}

static void
l3_1tr6_t303(struct PStack *st, u_char pr, void *arg)
{
	if (st->l3.n_t303 > 0) {
		st->l3.n_t303--;
		L3DelTimer(&st->l3.timer);
		l3_1tr6_setup_req(st, pr, arg);
	} else {
		L3DelTimer(&st->l3.timer);
		st->l3.l3l4(st, CC_NOSETUP_RSP_ERR, NULL);
		st->l3.n_t303 = 1;
		newl3state(st, 0);
	}
}

static void
l3_1tr6_t304(struct PStack *st, u_char pr, void *arg)
{
	L3DelTimer(&st->l3.timer);
	st->pa->cause = 0xE6;
	l3_1tr6_disconnect_req(st, pr, NULL);
	st->l3.l3l4(st, CC_SETUP_ERR, NULL);

}

static void
l3_1tr6_t305(struct PStack *st, u_char pr, void *arg)
{
	struct sk_buff *skb;
	u_char tmp[16];
	u_char *p = tmp;
	int l;
	u_char cause = 0x90;
	u_char clen = 1;

	L3DelTimer(&st->l3.timer);
	if (st->pa->cause > 0)
		cause = st->pa->cause;
	/* Map DSS1 causes */
	switch (cause & 0x7f) {
		case 0x10:
			clen = 0;
			break;
		case 0x15:
			cause = CAUSE_CallRejected;
			break;
	}
	MsgHead(p, st->l3.callref, MT_N1_REL, PROTO_DIS_N1);
	*p++ = WE0_cause;
	*p++ = clen;		/* Laenge */
	if (clen)
		*p++ = cause;
	newl3state(st, 19);
	l = p - tmp;
	if (!(skb = l3_alloc_skb(l)))
		return;
	memcpy(skb_put(skb, l), tmp, l);
	st->l3.l3l2(st, DL_DATA, skb);
	L3AddTimer(&st->l3.timer, st->l3.t308, CC_T308_1);
}

static void
l3_1tr6_t310(struct PStack *st, u_char pr, void *arg)
{
	L3DelTimer(&st->l3.timer);
	st->pa->cause = 0xE6;
	l3_1tr6_disconnect_req(st, pr, NULL);
	st->l3.l3l4(st, CC_SETUP_ERR, NULL);
}

static void
l3_1tr6_t313(struct PStack *st, u_char pr, void *arg)
{
	L3DelTimer(&st->l3.timer);
	st->pa->cause = 0xE6;
	l3_1tr6_disconnect_req(st, pr, NULL);
	st->l3.l3l4(st, CC_CONNECT_ERR, NULL);
}

static void
l3_1tr6_t308_1(struct PStack *st, u_char pr, void *arg)
{
	L3DelTimer(&st->l3.timer);
	l3_1TR6_message(st, MT_N1_REL, PROTO_DIS_N1);
	L3AddTimer(&st->l3.timer, st->l3.t308, CC_T308_2);
	newl3state(st, 19);
}

static void
l3_1tr6_t308_2(struct PStack *st, u_char pr, void *arg)
{
	L3DelTimer(&st->l3.timer);
	st->l3.l3l4(st, CC_RELEASE_ERR, NULL);
	newl3state(st, 0);
}
/* *INDENT-OFF* */
static struct stateentry downstl[] =
{
	{SBIT(0),
	 CC_SETUP_REQ, l3_1tr6_setup_req},
   	{SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(6) | SBIT(7) | SBIT(8) |
    	 SBIT(10),
    	 CC_DISCONNECT_REQ, l3_1tr6_disconnect_req},
	{SBIT(12),
	 CC_RELEASE_REQ, l3_1tr6_release_req},
	{ALL_STATES,
	 CC_DLRL, l3_1tr6_reset},
	{SBIT(6),
	 CC_IGNORE, l3_1tr6_reset},
	{SBIT(6),
	 CC_REJECT_REQ, l3_1tr6_disconnect_req},
	{SBIT(6),
	 CC_ALERTING_REQ, l3_1tr6_alert_req},
	{SBIT(6) | SBIT(7),
	 CC_SETUP_RSP, l3_1tr6_setup_rsp},
	{SBIT(1),
	 CC_T303, l3_1tr6_t303},
	{SBIT(2),
	 CC_T304, l3_1tr6_t304},
	{SBIT(3),
	 CC_T310, l3_1tr6_t310},
	{SBIT(8),
	 CC_T313, l3_1tr6_t313},
	{SBIT(11),
	 CC_T305, l3_1tr6_t305},
	{SBIT(19),
	 CC_T308_1, l3_1tr6_t308_1},
	{SBIT(19),
	 CC_T308_2, l3_1tr6_t308_2},
};

static int downstl_len = sizeof(downstl) /
sizeof(struct stateentry);

static struct stateentry datastln1[] =
{
	{SBIT(0),
	 MT_N1_SETUP, l3_1tr6_setup},
	{SBIT(1),
	 MT_N1_SETUP_ACK, l3_1tr6_setup_ack},
	{SBIT(1) | SBIT(2),
	 MT_N1_CALL_SENT, l3_1tr6_call_sent},
	{SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(10),
	 MT_N1_DISC, l3_1tr6_disc},
	{SBIT(2) | SBIT(3) | SBIT(4),
	 MT_N1_ALERT, l3_1tr6_alert},
	{SBIT(2) | SBIT(3) | SBIT(4),
	 MT_N1_CONN, l3_1tr6_connect},
	{SBIT(2),
	 MT_N1_INFO, l3_1tr6_info_s2},
	{SBIT(8),
	 MT_N1_CONN_ACK, l3_1tr6_connect_ack},
	{SBIT(10),
	 MT_N1_INFO, l3_1tr6_info},
	{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),
	 MT_N1_REL, l3_1tr6_rel},
	{SBIT(19),
	 MT_N1_REL_ACK, l3_1tr6_rel_ack}
};
/* *INDENT-ON* */



static int datastln1_len = sizeof(datastln1) /
sizeof(struct stateentry);

static void
up1tr6(struct PStack *st, int pr, void *arg)
{
	int i, mt;
	struct sk_buff *skb = arg;
	char tmp[80];

	if ((skb->data[0] & 0xfe) != PROTO_DIS_N0) {
		if (st->l3.debug & L3_DEB_PROTERR) {
			sprintf(tmp, "up1tr6%sunexpected discriminator %x message len %ld state %d",
				(pr == DL_DATA) ? " " : "(broadcast) ",
				skb->data[0], skb->len, st->l3.state);
			l3_debug(st, tmp);
		}
		SET_SKB_FREE(skb);
		dev_kfree_skb(skb, FREE_READ);
		return;
	}
	mt = skb->data[skb->data[1] + 2];
	if (skb->data[0] == PROTO_DIS_N0) {
		SET_SKB_FREE(skb);
		dev_kfree_skb(skb, FREE_READ);
		if (st->l3.debug & L3_DEB_STATE) {
			sprintf(tmp, "up1tr6%s N0 state %d mt %x unhandled",
				(pr == DL_DATA) ? " " : "(broadcast) ",
				st->l3.state, mt);
			l3_debug(st, tmp);
		}
	} else if (skb->data[0] == PROTO_DIS_N1) {
		for (i = 0; i < datastln1_len; i++)
			if ((mt == datastln1[i].primitive) &&
			    ((1 << st->l3.state) & datastln1[i].state))
				break;
		if (i == datastln1_len) {
			SET_SKB_FREE(skb);
			dev_kfree_skb(skb, FREE_READ);
			if (st->l3.debug & L3_DEB_STATE) {
				sprintf(tmp, "up1tr6%sstate %d mt %x unhandled",
				  (pr == DL_DATA) ? " " : "(broadcast) ",
					st->l3.state, mt);
				l3_debug(st, tmp);
			}
			return;
		} else {
			if (st->l3.debug & L3_DEB_STATE) {
				sprintf(tmp, "up1tr6%sstate %d mt %x",
				  (pr == DL_DATA) ? " " : "(broadcast) ",
					st->l3.state, mt);
				l3_debug(st, tmp);
			}
			datastln1[i].rout(st, pr, skb);
		}
	}
}

static void
down1tr6(struct PStack *st, int pr, void *arg)
{
	int i;
	char tmp[80];

	for (i = 0; i < downstl_len; i++)
		if ((pr == downstl[i].primitive) &&
		    ((1 << st->l3.state) & downstl[i].state))
			break;
	if (i == downstl_len) {
		if (st->l3.debug & L3_DEB_STATE) {
			sprintf(tmp, "down1tr6 state %d prim %d unhandled",
				st->l3.state, pr);
			l3_debug(st, tmp);
		}
	} else {
		if (st->l3.debug & L3_DEB_STATE) {
			sprintf(tmp, "down1tr6 state %d prim %d",
				st->l3.state, pr);
			l3_debug(st, tmp);
		}
		downstl[i].rout(st, pr, arg);
	}
}

void
setstack_1tr6(struct PStack *st)
{
	char tmp[64];

	st->l4.l4l3 = down1tr6;
	st->l2.l2l3 = up1tr6;
	st->l3.t303 = 4000;
	st->l3.t304 = 20000;
	st->l3.t305 = 4000;
	st->l3.t308 = 4000;
	st->l3.t310 = 120000;
	st->l3.t313 = 4000;
	st->l3.t318 = 4000;
	st->l3.t319 = 4000;
	st->l3.n_t303 = 0;

	if (st->l3.channr & 1) {
		strcpy(tmp, l3_1tr6_revision);
		printk(KERN_NOTICE "HiSax: 1TR6 Rev. %s\n", HiSax_getrev(tmp));
	}
}
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