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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [isdn/] [hisax/] [l3_1tr6.c] - Blame information for rev 1777

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Line No. Rev Author Line
1 1626 jcastillo 
/* $Id: l3_1tr6.c,v 1.1 2005-12-20 10:17:01 jcastillo Exp $
2 
 
3 
 *  German 1TR6 D-channel protocol
4 
 *
5 
 * Author       Karsten Keil (keil@temic-ech.spacenet.de)
6 
 *
7 
 *              This file is (c) under GNU PUBLIC LICENSE
8 
 *              For changes and modifications please read
9 
 *              ../../../Documentation/isdn/HiSax.cert
10 
 *
11 
 *
12 
 * $Log: not supported by cvs2svn $
13 
 * Revision 1.1.1.1  2001/09/10 07:44:18  simons
14 
 * Initial import
15 
 *
16 
 * Revision 1.1.1.1  2001/07/02 17:58:32  simons
17 
 * Initial revision
18 
 *
19 
 * Revision 1.11.2.6  1998/11/03 00:07:10  keil
20 
 * certification related changes
21 
 * fixed logging for smaller stack use
22 
 *
23 
 * Revision 1.11.2.5  1998/10/25 18:16:21  fritz
24 
 * Replaced some read-only variables by defines.
25 
 *
26 
 * Revision 1.11.2.4  1998/09/27 13:06:42  keil
27 
 * Apply most changes from 2.1.X (HiSax 3.1)
28 
 *
29 
 * Revision 1.11.2.3  1998/05/27 18:06:04  keil
30 
 * HiSax 3.0
31 
 *
32 
 * Revision 1.11.2.2  1997/11/15 18:54:12  keil
33 
 * cosmetics
34 
 *
35 
 * Revision 1.11.2.1  1997/10/17 22:14:12  keil
36 
 * update to last hisax version
37 
 *
38 
 * Revision 2.1  1997/08/03 15:28:09  keil
39 
 * release L3 empty processes
40 
 *
41 
 * Revision 2.0  1997/07/27 21:15:45  keil
42 
 * New Callref based layer3
43 
 *
44 
 * Revision 1.12  1997/06/26 11:11:45  keil
45 
 * SET_SKBFREE now on creation of a SKB
46 
 *
47 
 * Revision 1.11  1997/04/06 22:54:18  keil
48 
 * Using SKB's
49 
 *
50 
 * Old Log removed /KKe
51 
 *
52 
 */
53 
 
54 
#define __NO_VERSION__
55 
#include "hisax.h"
56 
#include "l3_1tr6.h"
57 
#include "isdnl3.h"
58 
#include <linux/ctype.h>
59 
 
60 
extern char *HiSax_getrev(const char *revision);
61 
const char *l3_1tr6_revision = "$Revision: 1.1 $";
62 
 
63 
#define MsgHead(ptr, cref, mty, dis) \
64 
        *ptr++ = dis; \
65 
        *ptr++ = 0x1; \
66 
        *ptr++ = cref ^ 0x80; \
67 
        *ptr++ = mty
68 
 
69 
static void
70 
l3_1TR6_message(struct l3_process *pc, u_char mt, u_char pd)
71 
{
72 
        struct sk_buff *skb;
73 
        u_char *p;
74 
 
75 
        if (!(skb = l3_alloc_skb(4)))
76 
                return;
77 
        p = skb_put(skb, 4);
78 
        MsgHead(p, pc->callref, mt, pd);
79 
        l3_msg(pc->st, DL_DATA | REQUEST, skb);
80 
}
81 
 
82 
static void
83 
l3_1tr6_release_req(struct l3_process *pc, u_char pr, void *arg)
84 
{
85 
        StopAllL3Timer(pc);
86 
        newl3state(pc, 19);
87 
        l3_1TR6_message(pc, MT_N1_REL, PROTO_DIS_N1);
88 
        L3AddTimer(&pc->timer, T308, CC_T308_1);
89 
}
90 
 
91 
static void
92 
l3_1tr6_invalid(struct l3_process *pc, u_char pr, void *arg)
93 
{
94 
        struct sk_buff *skb = arg;
95 
 
96 
        dev_kfree_skb(skb, FREE_READ);
97 
        l3_1tr6_release_req(pc, 0, NULL);
98 
}
99 
 
100 
static void
101 
l3_1tr6_error(struct l3_process *pc, u_char *msg, struct sk_buff *skb)
102 
{
103 
        dev_kfree_skb(skb, FREE_READ);
104 
        if (pc->st->l3.debug & L3_DEB_WARN)
105 
                l3_debug(pc->st, msg);
106 
        l3_1tr6_release_req(pc, 0, NULL);
107 
}
108 
 
109 
static void
110 
l3_1tr6_setup_req(struct l3_process *pc, u_char pr, void *arg)
111 
{
112 
        struct sk_buff *skb;
113 
        u_char tmp[128];
114 
        u_char *p = tmp;
115 
        u_char *teln;
116 
        u_char *eaz;
117 
        u_char channel = 0;
118 
        int l;
119 
 
120 
        MsgHead(p, pc->callref, MT_N1_SETUP, PROTO_DIS_N1);
121 
        teln = pc->para.setup.phone;
122 
        pc->para.spv = 0;
123 
        if (!isdigit(*teln)) {
124 
                switch (0x5f & *teln) {
125 
                        case 'S':
126 
                                pc->para.spv = 1;
127 
                                break;
128 
                        case 'C':
129 
                                channel = 0x08;
130 
                        case 'P':
131 
                                channel |= 0x80;
132 
                                teln++;
133 
                                if (*teln == '1')
134 
                                        channel |= 0x01;
135 
                                else
136 
                                        channel |= 0x02;
137 
                                break;
138 
                        default:
139 
                                if (pc->st->l3.debug & L3_DEB_WARN)
140 
                                        l3_debug(pc->st, "Wrong MSN Code");
141 
                                break;
142 
                }
143 
                teln++;
144 
        }
145 
        if (channel) {
146 
                *p++ = 0x18;    /* channel indicator */
147 
                *p++ = 1;
148 
                *p++ = channel;
149 
        }
150 
        if (pc->para.spv) {     /* SPV ? */
151 
                /* NSF SPV */
152 
                *p++ = WE0_netSpecFac;
153 
                *p++ = 4;       /* Laenge */
154 
                *p++ = 0;
155 
                *p++ = FAC_SPV; /* SPV */
156 
                *p++ = pc->para.setup.si1;      /* 0 for all Services */
157 
                *p++ = pc->para.setup.si2;      /* 0 for all Services */
158 
                *p++ = WE0_netSpecFac;
159 
                *p++ = 4;       /* Laenge */
160 
                *p++ = 0;
161 
                *p++ = FAC_Activate;    /* aktiviere SPV (default) */
162 
                *p++ = pc->para.setup.si1;      /* 0 for all Services */
163 
                *p++ = pc->para.setup.si2;      /* 0 for all Services */
164 
        }
165 
        eaz = pc->para.setup.eazmsn;
166 
        if (*eaz) {
167 
                *p++ = WE0_origAddr;
168 
                *p++ = strlen(eaz) + 1;
169 
                /* Classify as AnyPref. */
170 
                *p++ = 0x81;    /* Ext = '1'B, Type = '000'B, Plan = '0001'B. */
171 
                while (*eaz)
172 
                        *p++ = *eaz++ & 0x7f;
173 
        }
174 
        *p++ = WE0_destAddr;
175 
        *p++ = strlen(teln) + 1;
176 
        /* Classify as AnyPref. */
177 
        *p++ = 0x81;            /* Ext = '1'B, Type = '000'B, Plan = '0001'B. */
178 
        while (*teln)
179 
                *p++ = *teln++ & 0x7f;
180 
 
181 
        *p++ = WE_Shift_F6;
182 
        /* Codesatz 6 fuer Service */
183 
        *p++ = WE6_serviceInd;
184 
        *p++ = 2;               /* len=2 info,info2 */
185 
        *p++ = pc->para.setup.si1;
186 
        *p++ = pc->para.setup.si2;
187 
 
188 
        l = p - tmp;
189 
        if (!(skb = l3_alloc_skb(l)))
190 
                return;
191 
        memcpy(skb_put(skb, l), tmp, l);
192 
        L3DelTimer(&pc->timer);
193 
        L3AddTimer(&pc->timer, T303, CC_T303);
194 
        newl3state(pc, 1);
195 
        l3_msg(pc->st, DL_DATA | REQUEST, skb);
196 
}
197 
 
198 
static void
199 
l3_1tr6_setup(struct l3_process *pc, u_char pr, void *arg)
200 
{
201 
        u_char *p;
202 
        int bcfound = 0;
203 
        char tmp[80];
204 
        struct sk_buff *skb = arg;
205 
 
206 
        p = skb->data;
207 
 
208 
        /* Channel Identification */
209 
        p = skb->data;
210 
        if ((p = findie(p, skb->len, WE0_chanID, 0))) {
211 
                if (p[1] != 1) {
212 
                        l3_1tr6_error(pc, "setup wrong chanID len", skb);
213 
                        return;
214 
                }
215 
                if ((p[2] & 0xf4) != 0x80) {
216 
                        l3_1tr6_error(pc, "setup wrong WE0_chanID", skb);
217 
                        return;
218 
                }
219 
                if ((pc->para.bchannel = p[2] & 0x3))
220 
                                bcfound++;
221 
        } else {
222 
                l3_1tr6_error(pc, "missing setup chanID", skb);
223 
                return;
224 
        }
225 
 
226 
        p = skb->data;
227 
        if ((p = findie(p, skb->len, WE6_serviceInd, 6))) {
228 
                pc->para.setup.si1 = p[2];
229 
                pc->para.setup.si2 = p[3];
230 
        } else {
231 
                l3_1tr6_error(pc, "missing setup SI", skb);
232 
                return;
233 
        }
234 
 
235 
        p = skb->data;
236 
        if ((p = findie(p, skb->len, WE0_destAddr, 0)))
237 
                iecpy(pc->para.setup.eazmsn, p, 1);
238 
        else
239 
                pc->para.setup.eazmsn[0] = 0;
240 
 
241 
        p = skb->data;
242 
        if ((p = findie(p, skb->len, WE0_origAddr, 0))) {
243 
                iecpy(pc->para.setup.phone, p, 1);
244 
        } else
245 
                pc->para.setup.phone[0] = 0;
246 
 
247 
        p = skb->data;
248 
        pc->para.spv = 0;
249 
        if ((p = findie(p, skb->len, WE0_netSpecFac, 0))) {
250 
                if ((FAC_SPV == p[3]) || (FAC_Activate == p[3]))
251 
                        pc->para.spv = 1;
252 
        }
253 
        dev_kfree_skb(skb, FREE_READ);
254 
 
255 
        /* Signal all services, linklevel takes care of Service-Indicator */
256 
        if (bcfound) {
257 
                if ((pc->para.setup.si1 != 7) && (pc->st->l3.debug & L3_DEB_WARN)) {
258 
                        sprintf(tmp, "non-digital call: %s -> %s",
259 
                                pc->para.setup.phone,
260 
                                pc->para.setup.eazmsn);
261 
                        l3_debug(pc->st, tmp);
262 
                }
263 
                newl3state(pc, 6);
264 
                pc->st->l3.l3l4(pc->st, CC_SETUP | INDICATION, pc);
265 
        } else
266 
                release_l3_process(pc);
267 
}
268 
 
269 
static void
270 
l3_1tr6_setup_ack(struct l3_process *pc, u_char pr, void *arg)
271 
{
272 
        u_char *p;
273 
        struct sk_buff *skb = arg;
274 
 
275 
        L3DelTimer(&pc->timer);
276 
        p = skb->data;
277 
        newl3state(pc, 2);
278 
        if ((p = findie(p, skb->len, WE0_chanID, 0))) {
279 
                if (p[1] != 1) {
280 
                        l3_1tr6_error(pc, "setup_ack wrong chanID len", skb);
281 
                        return;
282 
                }
283 
                if ((p[2] & 0xf4) != 0x80) {
284 
                        l3_1tr6_error(pc, "setup_ack wrong WE0_chanID", skb);
285 
                        return;
286 
                }
287 
                pc->para.bchannel = p[2] & 0x3;
288 
        } else {
289 
                l3_1tr6_error(pc, "missing setup_ack WE0_chanID", skb);
290 
                return;
291 
        }
292 
        dev_kfree_skb(skb, FREE_READ);
293 
        L3AddTimer(&pc->timer, T304, CC_T304);
294 
        pc->st->l3.l3l4(pc->st, CC_MORE_INFO | INDICATION, pc);
295 
}
296 
 
297 
static void
298 
l3_1tr6_call_sent(struct l3_process *pc, u_char pr, void *arg)
299 
{
300 
        u_char *p;
301 
        struct sk_buff *skb = arg;
302 
 
303 
        L3DelTimer(&pc->timer);
304 
        p = skb->data;
305 
        if ((p = findie(p, skb->len, WE0_chanID, 0))) {
306 
                if (p[1] != 1) {
307 
                        l3_1tr6_error(pc, "call sent wrong chanID len", skb);
308 
                        return;
309 
                }
310 
                if ((p[2] & 0xf4) != 0x80) {
311 
                        l3_1tr6_error(pc, "call sent wrong WE0_chanID", skb);
312 
                        return;
313 
                }
314 
                if ((pc->state == 2) && (pc->para.bchannel != (p[2] & 0x3))) {
315 
                        l3_1tr6_error(pc, "call sent wrong chanID value", skb);
316 
                        return;
317 
                }
318 
                pc->para.bchannel = p[2] & 0x3;
319 
        } else {
320 
                l3_1tr6_error(pc, "missing call sent WE0_chanID", skb);
321 
                return;
322 
        }
323 
        dev_kfree_skb(skb, FREE_READ);
324 
        L3AddTimer(&pc->timer, T310, CC_T310);
325 
        newl3state(pc, 3);
326 
        pc->st->l3.l3l4(pc->st, CC_PROCEEDING | INDICATION, pc);
327 
}
328 
 
329 
static void
330 
l3_1tr6_alert(struct l3_process *pc, u_char pr, void *arg)
331 
{
332 
        struct sk_buff *skb = arg;
333 
 
334 
        dev_kfree_skb(skb, FREE_READ);
335 
        L3DelTimer(&pc->timer); /* T304 */
336 
        newl3state(pc, 4);
337 
        pc->st->l3.l3l4(pc->st, CC_ALERTING | INDICATION, pc);
338 
}
339 
 
340 
static void
341 
l3_1tr6_info(struct l3_process *pc, u_char pr, void *arg)
342 
{
343 
        u_char *p;
344 
        int i, tmpcharge = 0;
345 
        char a_charge[8], tmp[32];
346 
        struct sk_buff *skb = arg;
347 
 
348 
        p = skb->data;
349 
        if ((p = findie(p, skb->len, WE6_chargingInfo, 6))) {
350 
                iecpy(a_charge, p, 1);
351 
                for (i = 0; i < strlen(a_charge); i++) {
352 
                        tmpcharge *= 10;
353 
                        tmpcharge += a_charge[i] & 0xf;
354 
                }
355 
                if (tmpcharge > pc->para.chargeinfo) {
356 
                        pc->para.chargeinfo = tmpcharge;
357 
                        pc->st->l3.l3l4(pc->st, CC_CHARGE | INDICATION, pc);
358 
                }
359 
                if (pc->st->l3.debug & L3_DEB_CHARGE) {
360 
                        sprintf(tmp, "charging info %d", pc->para.chargeinfo);
361 
                        l3_debug(pc->st, tmp);
362 
                }
363 
        } else if (pc->st->l3.debug & L3_DEB_CHARGE)
364 
                l3_debug(pc->st, "charging info not found");
365 
        dev_kfree_skb(skb, FREE_READ);
366 
 
367 
}
368 
 
369 
static void
370 
l3_1tr6_info_s2(struct l3_process *pc, u_char pr, void *arg)
371 
{
372 
        struct sk_buff *skb = arg;
373 
 
374 
        dev_kfree_skb(skb, FREE_READ);
375 
}
376 
 
377 
static void
378 
l3_1tr6_connect(struct l3_process *pc, u_char pr, void *arg)
379 
{
380 
        struct sk_buff *skb = arg;
381 
 
382 
        L3DelTimer(&pc->timer); /* T310 */
383 
        if (!findie(skb->data, skb->len, WE6_date, 6)) {
384 
                l3_1tr6_error(pc, "missing connect date", skb);
385 
                return;
386 
        }
387 
        newl3state(pc, 10);
388 
        dev_kfree_skb(skb, FREE_READ);
389 
        pc->para.chargeinfo = 0;
390 
        pc->st->l3.l3l4(pc->st, CC_SETUP | CONFIRM, pc);
391 
}
392 
 
393 
static void
394 
l3_1tr6_rel(struct l3_process *pc, u_char pr, void *arg)
395 
{
396 
        struct sk_buff *skb = arg;
397 
        u_char *p;
398 
 
399 
        p = skb->data;
400 
        if ((p = findie(p, skb->len, WE0_cause, 0))) {
401 
                if (p[1] > 0) {
402 
                        pc->para.cause = p[2];
403 
                        if (p[1] > 1)
404 
                                pc->para.loc = p[3];
405 
                        else
406 
                                pc->para.loc = 0;
407 
                } else {
408 
                        pc->para.cause = 0;
409 
                        pc->para.loc = 0;
410 
                }
411 
        } else {
412 
                pc->para.cause = -1;
413 
                l3_1tr6_error(pc, "missing REL cause", skb);
414 
                return;
415 
        }
416 
        dev_kfree_skb(skb, FREE_READ);
417 
        StopAllL3Timer(pc);
418 
        newl3state(pc, 0);
419 
        l3_1TR6_message(pc, MT_N1_REL_ACK, PROTO_DIS_N1);
420 
        pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc);
421 
        release_l3_process(pc);
422 
}
423 
 
424 
static void
425 
l3_1tr6_rel_ack(struct l3_process *pc, u_char pr, void *arg)
426 
{
427 
        struct sk_buff *skb = arg;
428 
 
429 
        dev_kfree_skb(skb, FREE_READ);
430 
        StopAllL3Timer(pc);
431 
        newl3state(pc, 0);
432 
        pc->para.cause = -1;
433 
        pc->st->l3.l3l4(pc->st, CC_RELEASE | CONFIRM, pc);
434 
        release_l3_process(pc);
435 
}
436 
 
437 
static void
438 
l3_1tr6_disc(struct l3_process *pc, u_char pr, void *arg)
439 
{
440 
        struct sk_buff *skb = arg;
441 
        u_char *p;
442 
        int i, tmpcharge = 0;
443 
        char a_charge[8], tmp[32];
444 
 
445 
        StopAllL3Timer(pc);
446 
        p = skb->data;
447 
        if ((p = findie(p, skb->len, WE6_chargingInfo, 6))) {
448 
                iecpy(a_charge, p, 1);
449 
                for (i = 0; i < strlen(a_charge); i++) {
450 
                        tmpcharge *= 10;
451 
                        tmpcharge += a_charge[i] & 0xf;
452 
                }
453 
                if (tmpcharge > pc->para.chargeinfo) {
454 
                        pc->para.chargeinfo = tmpcharge;
455 
                        pc->st->l3.l3l4(pc->st, CC_CHARGE | INDICATION, pc);
456 
                }
457 
                if (pc->st->l3.debug & L3_DEB_CHARGE) {
458 
                        sprintf(tmp, "charging info %d", pc->para.chargeinfo);
459 
                        l3_debug(pc->st, tmp);
460 
                }
461 
        } else if (pc->st->l3.debug & L3_DEB_CHARGE)
462 
                l3_debug(pc->st, "charging info not found");
463 
 
464 
 
465 
        p = skb->data;
466 
        if ((p = findie(p, skb->len, WE0_cause, 0))) {
467 
                if (p[1] > 0) {
468 
                        pc->para.cause = p[2];
469 
                        if (p[1] > 1)
470 
                                pc->para.loc = p[3];
471 
                        else
472 
                                pc->para.loc = 0;
473 
                } else {
474 
                        pc->para.cause = 0;
475 
                        pc->para.loc = 0;
476 
                }
477 
        } else {
478 
                if (pc->st->l3.debug & L3_DEB_WARN)
479 
                        l3_debug(pc->st, "cause not found");
480 
                pc->para.cause = -1;
481 
        }
482 
        if (!findie(skb->data, skb->len, WE6_date, 6)) {
483 
                l3_1tr6_error(pc, "missing connack date", skb);
484 
                return;
485 
        }
486 
        dev_kfree_skb(skb, FREE_READ);
487 
        newl3state(pc, 12);
488 
        pc->st->l3.l3l4(pc->st, CC_DISCONNECT | INDICATION, pc);
489 
}
490 
 
491 
 
492 
static void
493 
l3_1tr6_connect_ack(struct l3_process *pc, u_char pr, void *arg)
494 
{
495 
        struct sk_buff *skb = arg;
496 
 
497 
        if (!findie(skb->data, skb->len, WE6_date, 6)) {
498 
                l3_1tr6_error(pc, "missing connack date", skb);
499 
                return;
500 
        }
501 
        dev_kfree_skb(skb, FREE_READ);
502 
        newl3state(pc, 10);
503 
        pc->para.chargeinfo = 0;
504 
        L3DelTimer(&pc->timer);
505 
        pc->st->l3.l3l4(pc->st, CC_SETUP_COMPL | INDICATION, pc);
506 
}
507 
 
508 
static void
509 
l3_1tr6_alert_req(struct l3_process *pc, u_char pr, void *arg)
510 
{
511 
        newl3state(pc, 7);
512 
        l3_1TR6_message(pc, MT_N1_ALERT, PROTO_DIS_N1);
513 
}
514 
 
515 
static void
516 
l3_1tr6_setup_rsp(struct l3_process *pc, u_char pr, void *arg)
517 
{
518 
        struct sk_buff *skb;
519 
        u_char tmp[24];
520 
        u_char *p = tmp;
521 
        int l;
522 
 
523 
        MsgHead(p, pc->callref, MT_N1_CONN, PROTO_DIS_N1);
524 
        if (pc->para.spv) {     /* SPV ? */
525 
                /* NSF SPV */
526 
                *p++ = WE0_netSpecFac;
527 
                *p++ = 4;       /* Laenge */
528 
                *p++ = 0;
529 
                *p++ = FAC_SPV; /* SPV */
530 
                *p++ = pc->para.setup.si1;
531 
                *p++ = pc->para.setup.si2;
532 
                *p++ = WE0_netSpecFac;
533 
                *p++ = 4;       /* Laenge */
534 
                *p++ = 0;
535 
                *p++ = FAC_Activate;    /* aktiviere SPV */
536 
                *p++ = pc->para.setup.si1;
537 
                *p++ = pc->para.setup.si2;
538 
        }
539 
        newl3state(pc, 8);
540 
        l = p - tmp;
541 
        if (!(skb = l3_alloc_skb(l)))
542 
                return;
543 
        memcpy(skb_put(skb, l), tmp, l);
544 
        l3_msg(pc->st, DL_DATA | REQUEST, skb);
545 
        L3DelTimer(&pc->timer);
546 
        L3AddTimer(&pc->timer, T313, CC_T313);
547 
}
548 
 
549 
static void
550 
l3_1tr6_reset(struct l3_process *pc, u_char pr, void *arg)
551 
{
552 
        release_l3_process(pc);
553 
}
554 
 
555 
static void
556 
l3_1tr6_disconnect_req(struct l3_process *pc, u_char pr, void *arg)
557 
{
558 
        struct sk_buff *skb;
559 
        u_char tmp[16];
560 
        u_char *p = tmp;
561 
        int l;
562 
        u_char cause = 0x10;
563 
        u_char clen = 1;
564 
 
565 
        if (pc->para.cause > 0)
566 
                cause = pc->para.cause;
567 
        /* Map DSS1 causes */
568 
        switch (cause & 0x7f) {
569 
                case 0x10:
570 
                        clen = 0;
571 
                        break;
572 
                case 0x15:
573 
                        cause = CAUSE_CallRejected;
574 
                        break;
575 
        }
576 
        StopAllL3Timer(pc);
577 
        MsgHead(p, pc->callref, MT_N1_DISC, PROTO_DIS_N1);
578 
        *p++ = WE0_cause;
579 
        *p++ = clen;            /* Laenge */
580 
        if (clen)
581 
                *p++ = cause | 0x80;
582 
        newl3state(pc, 11);
583 
        l = p - tmp;
584 
        if (!(skb = l3_alloc_skb(l)))
585 
                return;
586 
        memcpy(skb_put(skb, l), tmp, l);
587 
        l3_msg(pc->st, DL_DATA | REQUEST, skb);
588 
        L3AddTimer(&pc->timer, T305, CC_T305);
589 
}
590 
 
591 
static void
592 
l3_1tr6_t303(struct l3_process *pc, u_char pr, void *arg)
593 
{
594 
        if (pc->N303 > 0) {
595 
                pc->N303--;
596 
                L3DelTimer(&pc->timer);
597 
                l3_1tr6_setup_req(pc, pr, arg);
598 
        } else {
599 
                L3DelTimer(&pc->timer);
600 
                pc->para.cause = 0;
601 
                l3_1tr6_disconnect_req(pc, 0, NULL);
602 
        }
603 
}
604 
 
605 
static void
606 
l3_1tr6_t304(struct l3_process *pc, u_char pr, void *arg)
607 
{
608 
        L3DelTimer(&pc->timer);
609 
        pc->para.cause = 0xE6;
610 
        l3_1tr6_disconnect_req(pc, pr, NULL);
611 
        pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc);
612 
}
613 
 
614 
static void
615 
l3_1tr6_t305(struct l3_process *pc, u_char pr, void *arg)
616 
{
617 
        struct sk_buff *skb;
618 
        u_char tmp[16];
619 
        u_char *p = tmp;
620 
        int l;
621 
        u_char cause = 0x90;
622 
        u_char clen = 1;
623 
 
624 
        L3DelTimer(&pc->timer);
625 
        if (pc->para.cause > 0)
626 
                cause = pc->para.cause;
627 
        /* Map DSS1 causes */
628 
        switch (cause & 0x7f) {
629 
                case 0x10:
630 
                        clen = 0;
631 
                        break;
632 
                case 0x15:
633 
                        cause = CAUSE_CallRejected;
634 
                        break;
635 
        }
636 
        MsgHead(p, pc->callref, MT_N1_REL, PROTO_DIS_N1);
637 
        *p++ = WE0_cause;
638 
        *p++ = clen;            /* Laenge */
639 
        if (clen)
640 
                *p++ = cause;
641 
        newl3state(pc, 19);
642 
        l = p - tmp;
643 
        if (!(skb = l3_alloc_skb(l)))
644 
                return;
645 
        memcpy(skb_put(skb, l), tmp, l);
646 
        l3_msg(pc->st, DL_DATA | REQUEST, skb);
647 
        L3AddTimer(&pc->timer, T308, CC_T308_1);
648 
}
649 
 
650 
static void
651 
l3_1tr6_t310(struct l3_process *pc, u_char pr, void *arg)
652 
{
653 
        L3DelTimer(&pc->timer);
654 
        pc->para.cause = 0xE6;
655 
        l3_1tr6_disconnect_req(pc, pr, NULL);
656 
        pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc);
657 
}
658 
 
659 
static void
660 
l3_1tr6_t313(struct l3_process *pc, u_char pr, void *arg)
661 
{
662 
        L3DelTimer(&pc->timer);
663 
        pc->para.cause = 0xE6;
664 
        l3_1tr6_disconnect_req(pc, pr, NULL);
665 
        pc->st->l3.l3l4(pc->st, CC_CONNECT_ERR, pc);
666 
}
667 
 
668 
static void
669 
l3_1tr6_t308_1(struct l3_process *pc, u_char pr, void *arg)
670 
{
671 
        L3DelTimer(&pc->timer);
672 
        l3_1TR6_message(pc, MT_N1_REL, PROTO_DIS_N1);
673 
        L3AddTimer(&pc->timer, T308, CC_T308_2);
674 
        newl3state(pc, 19);
675 
}
676 
 
677 
static void
678 
l3_1tr6_t308_2(struct l3_process *pc, u_char pr, void *arg)
679 
{
680 
        L3DelTimer(&pc->timer);
681 
        pc->st->l3.l3l4(pc->st, CC_RELEASE_ERR, pc);
682 
        release_l3_process(pc);
683 
}
684 
/* *INDENT-OFF* */
685 
static struct stateentry downstl[] =
686 
{
687 
        {SBIT(0),
688 
         CC_SETUP | REQUEST, l3_1tr6_setup_req},
689 
        {SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(6) | SBIT(7) | SBIT(8) |
690 
         SBIT(10),
691 
         CC_DISCONNECT | REQUEST, l3_1tr6_disconnect_req},
692 
        {SBIT(12),
693 
         CC_RELEASE | REQUEST, l3_1tr6_release_req},
694 
        {ALL_STATES,
695 
         CC_DLRL | REQUEST, l3_1tr6_reset},
696 
        {SBIT(6),
697 
         CC_IGNORE | REQUEST, l3_1tr6_reset},
698 
        {SBIT(6),
699 
         CC_REJECT | REQUEST, l3_1tr6_disconnect_req},
700 
        {SBIT(6),
701 
         CC_ALERTING | REQUEST, l3_1tr6_alert_req},
702 
        {SBIT(6) | SBIT(7),
703 
         CC_SETUP | RESPONSE, l3_1tr6_setup_rsp},
704 
        {SBIT(1),
705 
         CC_T303, l3_1tr6_t303},
706 
        {SBIT(2),
707 
         CC_T304, l3_1tr6_t304},
708 
        {SBIT(3),
709 
         CC_T310, l3_1tr6_t310},
710 
        {SBIT(8),
711 
         CC_T313, l3_1tr6_t313},
712 
        {SBIT(11),
713 
         CC_T305, l3_1tr6_t305},
714 
        {SBIT(19),
715 
         CC_T308_1, l3_1tr6_t308_1},
716 
        {SBIT(19),
717 
         CC_T308_2, l3_1tr6_t308_2},
718 
};
719 
 
720 
#define DOWNSTL_LEN \
721 
        (sizeof(downstl) / sizeof(struct stateentry))
722 
 
723 
static struct stateentry datastln1[] =
724 
{
725 
        {SBIT(0),
726 
         MT_N1_INVALID, l3_1tr6_invalid},
727 
        {SBIT(0),
728 
         MT_N1_SETUP, l3_1tr6_setup},
729 
        {SBIT(1),
730 
         MT_N1_SETUP_ACK, l3_1tr6_setup_ack},
731 
        {SBIT(1) | SBIT(2),
732 
         MT_N1_CALL_SENT, l3_1tr6_call_sent},
733 
        {SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(10),
734 
         MT_N1_DISC, l3_1tr6_disc},
735 
        {SBIT(2) | SBIT(3) | SBIT(4),
736 
         MT_N1_ALERT, l3_1tr6_alert},
737 
        {SBIT(2) | SBIT(3) | SBIT(4),
738 
         MT_N1_CONN, l3_1tr6_connect},
739 
        {SBIT(2),
740 
         MT_N1_INFO, l3_1tr6_info_s2},
741 
        {SBIT(8),
742 
         MT_N1_CONN_ACK, l3_1tr6_connect_ack},
743 
        {SBIT(10),
744 
         MT_N1_INFO, l3_1tr6_info},
745 
        {SBIT(0) | SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) |
746 
         SBIT(10) | SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17),
747 
         MT_N1_REL, l3_1tr6_rel},
748 
        {SBIT(19),
749 
         MT_N1_REL, l3_1tr6_rel_ack},
750 
        {SBIT(0) | SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) |
751 
         SBIT(10) | SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17),
752 
         MT_N1_REL_ACK, l3_1tr6_invalid},
753 
        {SBIT(19),
754 
         MT_N1_REL_ACK, l3_1tr6_rel_ack}
755 
};
756 
/* *INDENT-ON* */
757 
 
758 
#define DATASTLN1_LEN \
759 
        (sizeof(datastln1) / sizeof(struct stateentry))
760 
 
761 
static void
762 
up1tr6(struct PStack *st, int pr, void *arg)
763 
{
764 
        int i, mt, cr;
765 
        struct l3_process *proc;
766 
        struct sk_buff *skb = arg;
767 
        char tmp[80];
768 
 
769 
        switch (pr) {
770 
                case (DL_DATA | INDICATION):
771 
                case (DL_UNIT_DATA | INDICATION):
772 
                        break;
773 
                case (DL_ESTABLISH | CONFIRM):
774 
                case (DL_ESTABLISH | INDICATION):
775 
                case (DL_RELEASE | INDICATION):
776 
                case (DL_RELEASE | CONFIRM):
777 
                        l3_msg(st, pr, arg);
778 
                        return;
779 
                        break;
780 
        }
781 
        if (skb->len < 4) {
782 
                if (st->l3.debug & L3_DEB_PROTERR) {
783 
                        sprintf(tmp, "up1tr6 len only %ld", skb->len);
784 
                        l3_debug(st, tmp);
785 
                }
786 
                dev_kfree_skb(skb, FREE_READ);
787 
                return;
788 
        }
789 
        if ((skb->data[0] & 0xfe) != PROTO_DIS_N0) {
790 
                if (st->l3.debug & L3_DEB_PROTERR) {
791 
                        sprintf(tmp, "up1tr6%sunexpected discriminator %x message len %ld",
792 
                                (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
793 
                                skb->data[0], skb->len);
794 
                        l3_debug(st, tmp);
795 
                }
796 
                dev_kfree_skb(skb, FREE_READ);
797 
                return;
798 
        }
799 
        if (skb->data[1] != 1) {
800 
                if (st->l3.debug & L3_DEB_PROTERR) {
801 
                        sprintf(tmp, "up1tr6 CR len not 1");
802 
                        l3_debug(st, tmp);
803 
                }
804 
                dev_kfree_skb(skb, FREE_READ);
805 
                return;
806 
        }
807 
        cr = skb->data[2];
808 
        mt = skb->data[3];
809 
        if (skb->data[0] == PROTO_DIS_N0) {
810 
                dev_kfree_skb(skb, FREE_READ);
811 
                if (st->l3.debug & L3_DEB_STATE) {
812 
                        sprintf(tmp, "up1tr6%s N0 mt %x unhandled",
813 
                             (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", mt);
814 
                        l3_debug(st, tmp);
815 
                }
816 
        } else if (skb->data[0] == PROTO_DIS_N1) {
817 
                if (!(proc = getl3proc(st, cr))) {
818 
                        if (mt == MT_N1_SETUP) {
819 
                                if (cr < 128) {
820 
                                        if (!(proc = new_l3_process(st, cr))) {
821 
                                                if (st->l3.debug & L3_DEB_PROTERR) {
822 
                                                        sprintf(tmp, "up1tr6 no roc mem");
823 
                                                        l3_debug(st, tmp);
824 
                                                }
825 
                                                dev_kfree_skb(skb, FREE_READ);
826 
                                                return;
827 
                                        }
828 
                                } else {
829 
                                        dev_kfree_skb(skb, FREE_READ);
830 
                                        return;
831 
                                }
832 
                        } else if ((mt == MT_N1_REL) || (mt == MT_N1_REL_ACK) ||
833 
                                (mt == MT_N1_CANC_ACK) || (mt == MT_N1_CANC_REJ) ||
834 
                                (mt == MT_N1_REG_ACK) || (mt == MT_N1_REG_REJ) ||
835 
                                (mt == MT_N1_SUSP_ACK) || (mt == MT_N1_RES_REJ) ||
836 
                                (mt == MT_N1_INFO)) {
837 
                                dev_kfree_skb(skb, FREE_READ);
838 
                                return;
839 
                        } else {
840 
                                if (!(proc = new_l3_process(st, cr))) {
841 
                                        if (st->l3.debug & L3_DEB_PROTERR) {
842 
                                                sprintf(tmp, "up1tr6 no roc mem");
843 
                                                l3_debug(st, tmp);
844 
                                        }
845 
                                        dev_kfree_skb(skb, FREE_READ);
846 
                                        return;
847 
                                }
848 
                                mt = MT_N1_INVALID;
849 
                        }
850 
                }
851 
                for (i = 0; i < DATASTLN1_LEN; i++)
852 
                        if ((mt == datastln1[i].primitive) &&
853 
                            ((1 << proc->state) & datastln1[i].state))
854 
                                break;
855 
                if (i == DATASTLN1_LEN) {
856 
                        dev_kfree_skb(skb, FREE_READ);
857 
                        if (st->l3.debug & L3_DEB_STATE) {
858 
                                sprintf(tmp, "up1tr6%sstate %d mt %x unhandled",
859 
                                  (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
860 
                                        proc->state, mt);
861 
                                l3_debug(st, tmp);
862 
                        }
863 
                        return;
864 
                } else {
865 
                        if (st->l3.debug & L3_DEB_STATE) {
866 
                                sprintf(tmp, "up1tr6%sstate %d mt %x",
867 
                                  (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
868 
                                        proc->state, mt);
869 
                                l3_debug(st, tmp);
870 
                        }
871 
                        datastln1[i].rout(proc, pr, skb);
872 
                }
873 
        }
874 
}
875 
 
876 
static void
877 
down1tr6(struct PStack *st, int pr, void *arg)
878 
{
879 
        int i, cr;
880 
        struct l3_process *proc;
881 
        struct Channel *chan;
882 
        char tmp[80];
883 
 
884 
        if (((DL_ESTABLISH | REQUEST)== pr) || ((DL_RELEASE | REQUEST)== pr)) {
885 
                l3_msg(st, pr, NULL);
886 
                return;
887 
        } else if ((CC_SETUP | REQUEST) == pr) {
888 
                chan = arg;
889 
                cr = newcallref();
890 
                cr |= 0x80;
891 
                if (!(proc = new_l3_process(st, cr))) {
892 
                        return;
893 
                } else {
894 
                        proc->chan = chan;
895 
                        chan->proc = proc;
896 
                        proc->para.setup = chan->setup;
897 
                        proc->callref = cr;
898 
                }
899 
        } else {
900 
                proc = arg;
901 
        }
902 
 
903 
        for (i = 0; i < DOWNSTL_LEN; i++)
904 
                if ((pr == downstl[i].primitive) &&
905 
                    ((1 << proc->state) & downstl[i].state))
906 
                        break;
907 
        if (i == DOWNSTL_LEN) {
908 
                if (st->l3.debug & L3_DEB_STATE) {
909 
                        sprintf(tmp, "down1tr6 state %d prim %d unhandled",
910 
                                proc->state, pr);
911 
                        l3_debug(st, tmp);
912 
                }
913 
        } else {
914 
                if (st->l3.debug & L3_DEB_STATE) {
915 
                        sprintf(tmp, "down1tr6 state %d prim %d",
916 
                                proc->state, pr);
917 
                        l3_debug(st, tmp);
918 
                }
919 
                downstl[i].rout(proc, pr, arg);
920 
        }
921 
}
922 
 
923 
void
924 
setstack_1tr6(struct PStack *st)
925 
{
926 
        char tmp[64];
927 
 
928 
        st->lli.l4l3 = down1tr6;
929 
        st->l2.l2l3 = up1tr6;
930 
        st->l3.N303 = 0;
931 
 
932 
        strcpy(tmp, l3_1tr6_revision);
933 
        printk(KERN_INFO "HiSax: 1TR6 Rev. %s\n", HiSax_getrev(tmp));
934 
}

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