net/irda/iriap.c

   1 /*********************************************************************
   2  *
   3  * Filename:      iriap.c
   4  * Version:       0.8
   5  * Description:   Information Access Protocol (IAP)
   6  * Status:        Experimental.
   7  * Author:        Dag Brattli <dagb@cs.uit.no>
   8  * Created at:    Thu Aug 21 00:02:07 1997
   9  * Modified at:   Sun Oct 31 22:10:45 1999
  10  * Modified by:   Dag Brattli <dagb@cs.uit.no>
  11  *
  12  *     Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
  13  *     All Rights Reserved.
  14  *
  15  *     This program is free software; you can redistribute it and/or
  16  *     modify it under the terms of the GNU General Public License as
  17  *     published by the Free Software Foundation; either version 2 of
  18  *     the License, or (at your option) any later version.
  19  *
  20  *     Neither Dag Brattli nor University of Tromsø admit liability nor
  21  *     provide warranty for any of this software. This material is
  22  *     provided "AS-IS" and at no charge.
  23  *
  24  ********************************************************************/
  25
  26 #include <linux/config.h>
  27 #include <linux/types.h>
  28 #include <linux/skbuff.h>
  29 #include <linux/string.h>
  30 #include <linux/init.h>
  31
  32 #include <asm/byteorder.h>
  33 #include <asm/unaligned.h>
  34
  35 #include <net/irda/irda.h>
  36 #include <net/irda/irttp.h>
  37 #include <net/irda/irmod.h>
  38 #include <net/irda/irlmp.h>
  39 #include <net/irda/irias_object.h>
  40 #include <net/irda/iriap_event.h>
  41 #include <net/irda/iriap.h>
  42
  43 /* FIXME: This one should go in irlmp.c */
  44 static const char *ias_charset_types[] = {
  45         "CS_ASCII",
  46         "CS_ISO_8859_1",
  47         "CS_ISO_8859_2",
  48         "CS_ISO_8859_3",
  49         "CS_ISO_8859_4",
  50         "CS_ISO_8859_5",
  51         "CS_ISO_8859_6",
  52         "CS_ISO_8859_7",
  53         "CS_ISO_8859_8",
  54         "CS_ISO_8859_9",
  55         "CS_UNICODE"
  56 };
  57
  58 static hashbin_t *iriap = NULL;
  59 static __u32 service_handle;
  60
  61 extern char *lmp_reasons[];
  62
  63 static void __iriap_close(struct iriap_cb *self);
  64 static void iriap_disconnect_indication(void *instance, void *sap,
  65                                         LM_REASON reason, struct sk_buff *skb);
  66 static void iriap_connect_indication(void *instance, void *sap,
  67                                      struct qos_info *qos, __u32 max_sdu_size,
  68                                      __u8 max_header_size,
  69                                      struct sk_buff *skb);
  70 static void iriap_connect_confirm(void *instance, void *sap,
  71                                   struct qos_info *qos,
  72                                   __u32 max_sdu_size, __u8 max_header_size,
  73                                   struct sk_buff *skb);
  74 static int iriap_data_indication(void *instance, void *sap,
  75                                  struct sk_buff *skb);
  76
  77 /*
  78  * Function iriap_init (void)
  79  *
  80  *    Initializes the IrIAP layer, called by the module initialization code
  81  *    in irmod.c
  82  */
  83 int __init iriap_init(void)
  84 {
  85         __u16 hints;
  86         struct ias_object *obj;
  87
  88         /* Allocate master array */
  89         iriap = hashbin_new(HB_LOCAL);
  90         if (!iriap)
  91                 return -ENOMEM;
  92
  93         objects = hashbin_new(HB_LOCAL);
  94         if (!objects) {
  95                 WARNING(__FUNCTION__ "(), Can't allocate objects hashbin!\n");
  96                 return -ENOMEM;
  97         }
  98
  99         /*
 100          *  Register some default services for IrLMP
 101          */
 102         hints  = irlmp_service_to_hint(S_COMPUTER);
 103         hints |= irlmp_service_to_hint(S_PNP);
 104         service_handle = irlmp_register_service(hints);
 105
 106         /*
 107          *  Register the Device object with LM-IAS
 108          */
 109         obj = irias_new_object("Device", IAS_DEVICE_ID);
 110         irias_add_string_attrib(obj, "DeviceName", "Linux");
 111         irias_insert_object(obj);
 112
 113         /*
 114          *  Register server support with IrLMP so we can accept incoming
 115          *  connections
 116          */
 117         iriap_open(LSAP_IAS, IAS_SERVER, NULL, NULL);
 118
 119         return 0;
 120 }
 121
 122 /*
 123  * Function iriap_cleanup (void)
 124  *
 125  *    Initializes the IrIAP layer, called by the module cleanup code in
 126  *    irmod.c
 127  */
 128 void iriap_cleanup(void)
 129 {
 130         irlmp_unregister_service(service_handle);
 131
 132         hashbin_delete(iriap, (FREE_FUNC) __iriap_close);
 133         hashbin_delete(objects, (FREE_FUNC) __irias_delete_object);
 134 }
 135
 136 /*
 137  * Function iriap_open (void)
 138  *
 139  *    Opens an instance of the IrIAP layer, and registers with IrLMP
 140  */
 141 struct iriap_cb *iriap_open(__u8 slsap_sel, int mode, void *priv,
 142                             CONFIRM_CALLBACK callback)
 143 {
 144         struct iriap_cb *self;
 145         struct lsap_cb *lsap;
 146         notify_t notify;
 147
 148         IRDA_DEBUG(4, __FUNCTION__ "()\n");
 149
 150         self = kmalloc(sizeof(struct iriap_cb), GFP_ATOMIC);
 151         if (!self) {
 152                 WARNING(__FUNCTION__ "(), Unable to kmalloc!\n");
 153                 return NULL;
 154         }
 155
 156         /*
 157          *  Initialize instance
 158          */
 159         memset(self, 0, sizeof(struct iriap_cb));
 160
 161         irda_notify_init(&notify);
 162         notify.connect_confirm       = iriap_connect_confirm;
 163         notify.connect_indication    = iriap_connect_indication;
 164         notify.disconnect_indication = iriap_disconnect_indication;
 165         notify.data_indication       = iriap_data_indication;
 166         notify.instance = self;
 167         if (mode == IAS_CLIENT)
 168                 strcpy(notify.name, "IrIAS cli");
 169         else
 170                 strcpy(notify.name, "IrIAS srv");
 171
 172         lsap = irlmp_open_lsap(slsap_sel, &notify);
 173         if (lsap == NULL) {
 174                 ERROR(__FUNCTION__ "(), Unable to allocated LSAP!\n");
 175                 return NULL;
 176         }
 177         slsap_sel = lsap->slsap_sel;
 178
 179         self->magic = IAS_MAGIC;
 180         self->lsap = lsap;
 181         self->slsap_sel = slsap_sel;
 182         self->mode = mode;
 183
 184         self->confirm = callback;
 185         self->priv = priv;
 186
 187         init_timer(&self->watchdog_timer);
 188
 189         hashbin_insert(iriap, (queue_t *) self, slsap_sel, NULL);
 190
 191         /* Initialize state machines */
 192         iriap_next_client_state(self, S_DISCONNECT);
 193         iriap_next_call_state(self, S_MAKE_CALL);
 194         iriap_next_server_state(self, R_DISCONNECT);
 195         iriap_next_r_connect_state(self, R_WAITING);
 196
 197         return self;
 198 }
 199
 200 /*
 201  * Function __iriap_close (self)
 202  *
 203  *    Removes (deallocates) the IrIAP instance
 204  *
 205  */
 206 static void __iriap_close(struct iriap_cb *self)
 207 {
 208         IRDA_DEBUG(4, __FUNCTION__ "()\n");
 209
 210         ASSERT(self != NULL, return;);
 211         ASSERT(self->magic == IAS_MAGIC, return;);
 212
 213         del_timer(&self->watchdog_timer);
 214
 215         self->magic = 0;
 216
 217         kfree(self);
 218 }
 219
 220 /*
 221  * Function iriap_close (void)
 222  *
 223  *    Closes IrIAP and deregisters with IrLMP
 224  */
 225 void iriap_close(struct iriap_cb *self)
 226 {
 227         struct iriap_cb *entry;
 228
 229         ASSERT(self != NULL, return;);
 230         ASSERT(self->magic == IAS_MAGIC, return;);
 231
 232         if (self->lsap) {
 233                 irlmp_close_lsap(self->lsap);
 234                 self->lsap = NULL;
 235         }
 236
 237         entry = (struct iriap_cb *) hashbin_remove(iriap, self->slsap_sel,
 238                                                    NULL);
 239         ASSERT(entry == self, return;);
 240
 241         __iriap_close(self);
 242 }
 243
 244 /*
 245  * Function iriap_disconnect_indication (handle, reason)
 246  *
 247  *    Got disconnect, so clean up everything assosiated with this connection
 248  *
 249  */
 250 static void iriap_disconnect_indication(void *instance, void *sap,
 251                                         LM_REASON reason,
 252                                         struct sk_buff *userdata)
 253 {
 254         struct iriap_cb *self;
 255
 256         IRDA_DEBUG(4, __FUNCTION__ "(), reason=%s\n", lmp_reasons[reason]);
 257
 258         self = (struct iriap_cb *) instance;
 259
 260         ASSERT(self != NULL, return;);
 261         ASSERT(self->magic == IAS_MAGIC, return;);
 262
 263         ASSERT(iriap != NULL, return;);
 264
 265         del_timer(&self->watchdog_timer);
 266
 267         if (self->mode == IAS_CLIENT) {
 268                 IRDA_DEBUG(4, __FUNCTION__ "(), disconnect as client\n");
 269
 270                 /*
 271                  * Inform service user that the request failed by sending
 272                  * it a NULL value.
 273                  */
 274                 if (self->confirm)
 275                         self->confirm(IAS_DISCONNECT, 0, NULL, self->priv);
 276
 277
 278                 iriap_do_client_event(self, IAP_LM_DISCONNECT_INDICATION,
 279                                       NULL);
 280                 /* Close instance only if client */
 281                 /* iriap_close(self); */
 282
 283         } else {
 284                 IRDA_DEBUG(4, __FUNCTION__ "(), disconnect as server\n");
 285                 iriap_do_server_event(self, IAP_LM_DISCONNECT_INDICATION,
 286                                       NULL);
 287         }
 288
 289         if (userdata)
 290                 dev_kfree_skb(userdata);
 291 }
 292
 293 /*
 294  * Function iriap_disconnect_request (handle)
 295  *
 296  *
 297  *
 298  */
 299 void iriap_disconnect_request(struct iriap_cb *self)
 300 {
 301         struct sk_buff *skb;
 302
 303         IRDA_DEBUG(4, __FUNCTION__ "()\n");
 304
 305         ASSERT(self != NULL, return;);
 306         ASSERT(self->magic == IAS_MAGIC, return;);
 307
 308         skb = dev_alloc_skb(64);
 309         if (skb == NULL) {
 310                 IRDA_DEBUG(0, __FUNCTION__
 311                       "(), Could not allocate an sk_buff of length %d\n", 64);
 312                 return;
 313         }
 314
 315         /*
 316          *  Reserve space for MUX control and LAP header
 317          */
 318         skb_reserve(skb, LMP_MAX_HEADER);
 319
 320         irlmp_disconnect_request(self->lsap, skb);
 321 }
 322
 323 void iriap_getinfobasedetails_request(void)
 324 {
 325         IRDA_DEBUG(0, __FUNCTION__ "(), Not implemented!\n");
 326 }
 327
 328 void iriap_getinfobasedetails_confirm(void)
 329 {
 330         IRDA_DEBUG(0, __FUNCTION__ "(), Not implemented!\n");
 331 }
 332
 333 void iriap_getobjects_request(void)
 334 {
 335         IRDA_DEBUG(0, __FUNCTION__ "(), Not implemented!\n");
 336 }
 337
 338 void iriap_getobjects_confirm(void)
 339 {
 340         IRDA_DEBUG(0, __FUNCTION__ "(), Not implemented!\n");
 341 }
 342
 343 void iriap_getvalue(void)
 344 {
 345         IRDA_DEBUG(0, __FUNCTION__ "(), Not implemented!\n");
 346 }
 347
 348 /*
 349  * Function iriap_getvaluebyclass (addr, name, attr)
 350  *
 351  *    Retreive all values from attribute in all objects with given class
 352  *    name
 353  */
 354 int iriap_getvaluebyclass_request(struct iriap_cb *self,
 355                                   __u32 saddr, __u32 daddr,
 356                                   char *name, char *attr)
 357 {
 358         struct sk_buff *skb;
 359         int name_len, attr_len;
 360         __u8 *frame;
 361
 362         ASSERT(self != NULL, return -1;);
 363         ASSERT(self->magic == IAS_MAGIC, return -1;);
 364
 365         /* Client must supply the destination device address */
 366         if (!daddr)
 367                 return -1;
 368
 369         self->daddr = daddr;
 370         self->saddr = saddr;
 371
 372         /*
 373          *  Save operation, so we know what the later indication is about
 374          */
 375         self->operation = GET_VALUE_BY_CLASS;
 376
 377         /* Give ourselves 10 secs to finish this operation */
 378         iriap_start_watchdog_timer(self, 10*HZ);
 379
 380         skb = dev_alloc_skb(64);
 381         if (!skb)
 382                 return -ENOMEM;
 383
 384         name_len = strlen(name);
 385         attr_len = strlen(attr);
 386
 387         /* Reserve space for MUX and LAP header */
 388         skb_reserve(skb, self->max_header_size);
 389         skb_put(skb, 3+name_len+attr_len);
 390         frame = skb->data;
 391
 392         /* Build frame */
 393         frame[0] = IAP_LST | GET_VALUE_BY_CLASS;
 394         frame[1] = name_len;                       /* Insert length of name */
 395         memcpy(frame+2, name, name_len);           /* Insert name */
 396         frame[2+name_len] = attr_len;              /* Insert length of attr */
 397         memcpy(frame+3+name_len, attr, attr_len);  /* Insert attr */
 398
 399         iriap_do_client_event(self, IAP_CALL_REQUEST_GVBC, skb);
 400
 401         return 0;
 402 }
 403
 404 /*
 405  * Function iriap_getvaluebyclass_confirm (self, skb)
 406  *
 407  *    Got result from GetValueByClass command. Parse it and return result
 408  *    to service user.
 409  *
 410  */
 411 void iriap_getvaluebyclass_confirm(struct iriap_cb *self, struct sk_buff *skb)
 412 {
 413         struct ias_value *value;
 414         int charset;
 415         __u32 value_len;
 416         __u32 tmp_cpu32;
 417         __u16 obj_id;
 418         __u16 len;
 419         __u8  type;
 420         __u8 *fp;
 421         int n;
 422
 423         ASSERT(self != NULL, return;);
 424         ASSERT(self->magic == IAS_MAGIC, return;);
 425         ASSERT(skb != NULL, return;);
 426
 427         /* Initialize variables */
 428         fp = skb->data;
 429         n = 2;
 430
 431         /* Get length, MSB first */
 432         len = be16_to_cpu(get_unaligned((__u16 *)(fp+n))); n += 2;
 433
 434         IRDA_DEBUG(4, __FUNCTION__ "(), len=%d\n", len);
 435
 436         /* Get object ID, MSB first */
 437         obj_id = be16_to_cpu(get_unaligned((__u16 *)(fp+n))); n += 2;
 438
 439         type = fp[n++];
 440         IRDA_DEBUG(4, __FUNCTION__ "(), Value type = %d\n", type);
 441
 442         switch (type) {
 443         case IAS_INTEGER:
 444                 memcpy(&tmp_cpu32, fp+n, 4); n += 4;
 445                 be32_to_cpus(&tmp_cpu32);
 446                 value = irias_new_integer_value(tmp_cpu32);
 447
 448                 /*  Legal values restricted to 0x01-0x6f, page 15 irttp */
 449                 IRDA_DEBUG(4, __FUNCTION__ "(), lsap=%d\n", value->t.integer);
 450                 break;
 451         case IAS_STRING:
 452                 charset = fp[n++];
 453
 454                 switch (charset) {
 455                 case CS_ASCII:
 456                         break;
 457 /*              case CS_ISO_8859_1: */
 458 /*              case CS_ISO_8859_2: */
 459 /*              case CS_ISO_8859_3: */
 460 /*              case CS_ISO_8859_4: */
 461 /*              case CS_ISO_8859_5: */
 462 /*              case CS_ISO_8859_6: */
 463 /*              case CS_ISO_8859_7: */
 464 /*              case CS_ISO_8859_8: */
 465 /*              case CS_ISO_8859_9: */
 466 /*              case CS_UNICODE: */
 467                 default:
 468                         IRDA_DEBUG(0, __FUNCTION__
 469                                    "(), charset %s, not supported\n",
 470                                    ias_charset_types[charset]);
 471                         return;
 472                         /* break; */
 473                 }
 474                 value_len = fp[n++];
 475                 IRDA_DEBUG(4, __FUNCTION__ "(), strlen=%d\n", value_len);
 476                 ASSERT(value_len < 64, return;);
 477
 478                 /* Make sure the string is null-terminated */
 479                 fp[n+value_len] = 0x00;
 480
 481                 IRDA_DEBUG(4, "Got string %s\n", fp+n);
 482                 value = irias_new_string_value(fp+n);
 483                 break;
 484         case IAS_OCT_SEQ:
 485                 value_len = be16_to_cpu(get_unaligned((__u16 *)(fp+n)));
 486                 n += 2;
 487
 488                 ASSERT(value_len <= 55, return;);
 489
 490                 value = irias_new_octseq_value(fp+n, value_len);
 491                 break;
 492         default:
 493                 value = &missing;
 494                 break;
 495         }
 496
 497         /* Finished, close connection! */
 498         iriap_disconnect_request(self);
 499
 500         if (self->confirm)
 501                 self->confirm(IAS_SUCCESS, obj_id, value, self->priv);
 502 }
 503
 504 /*
 505  * Function iriap_getvaluebyclass_response ()
 506  *
 507  *    Send answer back to remote LM-IAS
 508  *
 509  */
 510 void iriap_getvaluebyclass_response(struct iriap_cb *self, __u16 obj_id,
 511                                     __u8 ret_code, struct ias_value *value)
 512 {
 513         struct sk_buff *skb;
 514         int n;
 515         __u32 tmp_be32, tmp_be16;
 516         __u8 *fp;
 517
 518         IRDA_DEBUG(4, __FUNCTION__ "()\n");
 519
 520         ASSERT(self != NULL, return;);
 521         ASSERT(self->magic == IAS_MAGIC, return;);
 522         ASSERT(value != NULL, return;);
 523         ASSERT(value->len <= 1024, return;);
 524
 525         /* Initialize variables */
 526         n = 0;
 527
 528         /*
 529          *  We must adjust the size of the response after the length of the
 530          *  value. We add 9 bytes because of the 6 bytes for the frame and
 531          *  max 3 bytes for the value coding.
 532          */
 533         skb = dev_alloc_skb(value->len + self->max_header_size + 9);
 534         if (!skb)
 535                 return;
 536
 537         /* Reserve space for MUX and LAP header */
 538         skb_reserve(skb, self->max_header_size);
 539         skb_put(skb, 6);
 540
 541         fp = skb->data;
 542
 543         /* Build frame */
 544         fp[n++] = GET_VALUE_BY_CLASS | IAP_LST;
 545         fp[n++] = ret_code;
 546
 547         /* Insert list length (MSB first) */
 548         tmp_be16 = __constant_htons(0x0001);
 549         memcpy(fp+n, &tmp_be16, 2);  n += 2;
 550
 551         /* Insert object identifier ( MSB first) */
 552         tmp_be16 = cpu_to_be16(obj_id);
 553         memcpy(fp+n, &tmp_be16, 2); n += 2;
 554
 555         switch(value->type) {
 556         case IAS_STRING:
 557                 skb_put(skb, 3 + value->len);
 558                 fp[n++] = value->type;
 559                 fp[n++] = 0; /* ASCII */
 560                 fp[n++] = (__u8) value->len;
 561                 memcpy(fp+n, value->t.string, value->len); n+=value->len;
 562                 break;
 563         case IAS_INTEGER:
 564                 skb_put(skb, 5);
 565                 fp[n++] = value->type;
 566
 567                 tmp_be32 = cpu_to_be32(value->t.integer);
 568                 memcpy(fp+n, &tmp_be32, 4); n += 4;
 569                 break;
 570         case IAS_OCT_SEQ:
 571                 skb_put(skb, 3 + value->len);
 572                 fp[n++] = value->type;
 573
 574                 tmp_be16 = cpu_to_be16(value->len);
 575                 memcpy(fp+n, &tmp_be16, 2); n += 2;
 576                 memcpy(fp+n, value->t.oct_seq, value->len); n+=value->len;
 577                 break;
 578         case IAS_MISSING:
 579                 IRDA_DEBUG( 3, __FUNCTION__ ": sending IAS_MISSING\n");
 580                 skb_put( skb, 1);
 581                 fp[n++] = value->type;
 582                 break;
 583         default:
 584                 IRDA_DEBUG(0, __FUNCTION__ "(), type not implemented!\n");
 585                 break;
 586         }
 587         iriap_do_r_connect_event(self, IAP_CALL_RESPONSE, skb);
 588 }
 589
 590 /*
 591  * Function iriap_getvaluebyclass_indication (self, skb)
 592  *
 593  *    getvaluebyclass is requested from peer LM-IAS
 594  *
 595  */
 596 void iriap_getvaluebyclass_indication(struct iriap_cb *self,
 597                                       struct sk_buff *skb)
 598 {
 599         struct ias_object *obj;
 600         struct ias_attrib *attrib;
 601         int name_len;
 602         int attr_len;
 603         char name[64];
 604         char attr[64];
 605         __u8 *fp;
 606         int n;
 607
 608         IRDA_DEBUG(4, __FUNCTION__ "()\n");
 609
 610         ASSERT(self != NULL, return;);
 611         ASSERT(self->magic == IAS_MAGIC, return;);
 612         ASSERT(skb != NULL, return;);
 613
 614         fp = skb->data;
 615         n = 1;
 616
 617         name_len = fp[n++];
 618         memcpy(name, fp+n, name_len); n+=name_len;
 619         name[name_len] = '\0';
 620
 621         attr_len = fp[n++];
 622         memcpy(attr, fp+n, attr_len); n+=attr_len;
 623         attr[attr_len] = '\0';
 624
 625         dev_kfree_skb(skb);
 626
 627         /*
 628          *  Now, do some advanced parsing! :-)
 629          */
 630         IRDA_DEBUG(4, "LM-IAS: Looking up %s: %s\n", name, attr);
 631         obj = irias_find_object(name);
 632
 633         if (obj == NULL) {
 634                 IRDA_DEBUG(0, "LM-IAS: Object not found\n");
 635                 iriap_getvaluebyclass_response(self, 0x1235, IAS_CLASS_UNKNOWN,
 636                                                &missing);
 637                 return;
 638         }
 639         IRDA_DEBUG(4, "LM-IAS: found %s, id=%d\n", obj->name, obj->id);
 640
 641         attrib = irias_find_attrib(obj, attr);
 642         if (attrib == NULL) {
 643                 IRDA_DEBUG(0, "LM-IAS: Attribute %s not found\n", attr);
 644                 iriap_getvaluebyclass_response(self, obj->id,
 645                                                IAS_ATTRIB_UNKNOWN, &missing);
 646                 return;
 647         }
 648
 649         IRDA_DEBUG(4, "LM-IAS: found %s\n", attrib->name);
 650
 651         /*
 652          * We have a match; send the value.
 653          */
 654         iriap_getvaluebyclass_response(self, obj->id, IAS_SUCCESS,
 655                                        attrib->value);
 656
 657         return;
 658 }
 659
 660 /*
 661  * Function iriap_send_ack (void)
 662  *
 663  *    Currently not used
 664  *
 665  */
 666 void iriap_send_ack(struct iriap_cb *self)
 667 {
 668         struct sk_buff *skb;
 669         __u8 *frame;
 670
 671         IRDA_DEBUG(6, __FUNCTION__ "()\n");
 672
 673         ASSERT(self != NULL, return;);
 674         ASSERT(self->magic == IAS_MAGIC, return;);
 675
 676         skb = dev_alloc_skb(64);
 677         if (!skb)
 678                 return;
 679
 680         /* Reserve space for MUX and LAP header */
 681         skb_reserve(skb, self->max_header_size);
 682         skb_put(skb, 1);
 683         frame = skb->data;
 684
 685         /* Build frame */
 686         frame[0] = IAP_LST | self->operation;
 687 }
 688
 689 /*
 690  * Function iriap_connect_confirm (handle, skb)
 691  *
 692  *    LSAP connection confirmed!
 693  *
 694  */
 695 static void iriap_connect_confirm(void *instance, void *sap,
 696                                   struct qos_info *qos,
 697                                   __u32 max_sdu_size, __u8 header_size,
 698                                   struct sk_buff *userdata)
 699 {
 700         struct iriap_cb *self;
 701
 702         self = (struct iriap_cb *) instance;
 703
 704         ASSERT(self != NULL, return;);
 705         ASSERT(self->magic == IAS_MAGIC, return;);
 706         ASSERT(userdata != NULL, return;);
 707
 708         IRDA_DEBUG(4, __FUNCTION__ "()\n");
 709
 710         del_timer(&self->watchdog_timer);
 711
 712         iriap_do_client_event(self, IAP_LM_CONNECT_CONFIRM, userdata);
 713 }
 714
 715 /*
 716  * Function iriap_connect_indication ( handle, skb)
 717  *
 718  *    Remote LM-IAS is requesting connection
 719  *
 720  */
 721 static void iriap_connect_indication(void *instance, void *sap,
 722                                      struct qos_info *qos, __u32 max_sdu_size,
 723                                      __u8 header_size,
 724                                      struct sk_buff *userdata)
 725 {
 726         struct iriap_cb *self;
 727
 728         self = (struct iriap_cb *) instance;
 729
 730         ASSERT(self != NULL, return;);
 731         ASSERT(self->magic == IAS_MAGIC, return;);
 732
 733         iriap_do_server_event(self, IAP_LM_CONNECT_INDICATION, userdata);
 734 }
 735
 736 /*
 737  * Function iriap_data_indication (handle, skb)
 738  *
 739  *    Receives data from connection identified by handle from IrLMP
 740  *
 741  */
 742 static int iriap_data_indication(void *instance, void *sap,
 743                                  struct sk_buff *skb)
 744 {
 745         struct iriap_cb *self;
 746         __u8  *frame;
 747         __u8  opcode;
 748
 749         IRDA_DEBUG( 4, __FUNCTION__ "()\n");
 750
 751         self = (struct iriap_cb *) instance;
 752
 753         ASSERT(self != NULL, return 0;);
 754         ASSERT(self->magic == IAS_MAGIC, return 0;);
 755
 756         ASSERT(skb != NULL, return 0;);
 757
 758         frame = skb->data;
 759
 760         if (self->mode == IAS_SERVER) {
 761                 /* Call server */
 762                 IRDA_DEBUG(4, __FUNCTION__ "(), Calling server!\n");
 763                 iriap_do_r_connect_event(self, IAP_RECV_F_LST, skb);
 764
 765                 return 0;
 766         }
 767         opcode = frame[0];
 768         if (~opcode & IAP_LST) {
 769                 WARNING(__FUNCTION__ "(), IrIAS multiframe commands or "
 770                         "results is not implemented yet!\n");
 771                 return 0;
 772         }
 773
 774         /* Check for ack frames since they don't contain any data */
 775         if (opcode & IAP_ACK) {
 776                 IRDA_DEBUG(0, __FUNCTION__ "() Got ack frame!\n");
 777                 return 0;
 778         }
 779
 780         opcode &= ~IAP_LST; /* Mask away LST bit */
 781
 782         switch (opcode) {
 783         case GET_INFO_BASE:
 784                 IRDA_DEBUG(0, "IrLMP GetInfoBaseDetails not implemented!\n");
 785                 break;
 786         case GET_VALUE_BY_CLASS:
 787                 iriap_do_call_event(self, IAP_RECV_F_LST, skb);
 788
 789                 switch (frame[1]) {
 790                 case IAS_SUCCESS:
 791                         iriap_getvaluebyclass_confirm(self, skb);
 792                         break;
 793                 case IAS_CLASS_UNKNOWN:
 794                         WARNING(__FUNCTION__ "(), No such class!\n");
 795                         /* Finished, close connection! */
 796                         iriap_disconnect_request(self);
 797
 798                         if (self->confirm)
 799                                 self->confirm(IAS_CLASS_UNKNOWN, 0, NULL,
 800                                               self->priv);
 801                         break;
 802                 case IAS_ATTRIB_UNKNOWN:
 803                         WARNING(__FUNCTION__ "(), No such attribute!\n");
 804                         /* Finished, close connection! */
 805                         iriap_disconnect_request(self);
 806
 807                         if (self->confirm)
 808                                 self->confirm(IAS_CLASS_UNKNOWN, 0, NULL,
 809                                               self->priv);
 810                         break;
 811                 }
 812
 813         /*      iriap_close(self); */
 814                 break;
 815         default:
 816                 IRDA_DEBUG(0, __FUNCTION__ "(), Unknown op-code: %02x\n",
 817                            opcode);
 818                 break;
 819         }
 820         return 0;
 821 }
 822
 823 /*
 824  * Function iriap_call_indication (self, skb)
 825  *
 826  *    Received call to server from peer LM-IAS
 827  *
 828  */
 829 void iriap_call_indication(struct iriap_cb *self, struct sk_buff *skb)
 830 {
 831         __u8 *fp;
 832         __u8 opcode;
 833
 834         IRDA_DEBUG(4, __FUNCTION__ "()\n");
 835
 836         ASSERT(self != NULL, return;);
 837         ASSERT(self->magic == IAS_MAGIC, return;);
 838         ASSERT(skb != NULL, return;);
 839
 840         fp = skb->data;
 841
 842         opcode = fp[0];
 843         if (~opcode & 0x80) {
 844                 WARNING(__FUNCTION__ "(), IrIAS multiframe commands or results"
 845                         "is not implemented yet!\n");
 846                 return;
 847         }
 848         opcode &= 0x7f; /* Mask away LST bit */
 849
 850         switch (opcode) {
 851         case GET_INFO_BASE:
 852                 WARNING(__FUNCTION__
 853                         "(), GetInfoBaseDetails not implemented yet!\n");
 854                 break;
 855         case GET_VALUE_BY_CLASS:
 856                 iriap_getvaluebyclass_indication(self, skb);
 857                 break;
 858         }
 859 }
 860
 861 /*
 862  * Function iriap_watchdog_timer_expired (data)
 863  *
 864  *    Query has taken to long time, so abort
 865  *
 866  */
 867 void iriap_watchdog_timer_expired(void *data)
 868 {
 869         struct iriap_cb *self = (struct iriap_cb *) data;
 870
 871         ASSERT(self != NULL, return;);
 872         ASSERT(self->magic == IAS_MAGIC, return;);
 873
 874         /* iriap_close(self); */
 875 }
 876
 877 #ifdef CONFIG_PROC_FS
 878
 879 static char *ias_value_types[] = {
 880         "IAS_MISSING",
 881         "IAS_INTEGER",
 882         "IAS_OCT_SEQ",
 883         "IAS_STRING"
 884 };
 885
 886 int irias_proc_read(char *buf, char **start, off_t offset, int len, int unused)
 887 {
 888         struct ias_object *obj;
 889         struct ias_attrib *attrib;
 890         unsigned long flags;
 891
 892         ASSERT( objects != NULL, return 0;);
 893
 894         save_flags( flags);
 895         cli();
 896
 897         len = 0;
 898
 899         len += sprintf(buf+len, "LM-IAS Objects:\n");
 900
 901         /* List all objects */
 902         obj = (struct ias_object *) hashbin_get_first(objects);
 903         while ( obj != NULL) {
 904                 ASSERT(obj->magic == IAS_OBJECT_MAGIC, return 0;);
 905
 906                 len += sprintf(buf+len, "name: %s, ", obj->name);
 907                 len += sprintf(buf+len, "id=%d", obj->id);
 908                 len += sprintf(buf+len, "\n");
 909
 910                 /* List all attributes for this object */
 911                 attrib = (struct ias_attrib *)
 912                         hashbin_get_first(obj->attribs);
 913                 while (attrib != NULL) {
 914                         ASSERT(attrib->magic == IAS_ATTRIB_MAGIC, return 0;);
 915
 916                         len += sprintf(buf+len, " - Attribute name: \"%s\", ",
 917                                        attrib->name);
 918                         len += sprintf(buf+len, "value[%s]: ",
 919                                        ias_value_types[attrib->value->type]);
 920
 921                         switch (attrib->value->type) {
 922                         case IAS_INTEGER:
 923                                 len += sprintf(buf+len, "%d\n",
 924                                                attrib->value->t.integer);
 925                                 break;
 926                         case IAS_STRING:
 927                                 len += sprintf(buf+len, "\"%s\"\n",
 928                                                attrib->value->t.string);
 929                                 break;
 930                         case IAS_OCT_SEQ:
 931                                 len += sprintf(buf+len, "octet sequence\n");
 932                                 break;
 933                         case IAS_MISSING:
 934                                 len += sprintf(buf+len, "missing\n");
 935                                 break;
 936                         default:
 937                                 IRDA_DEBUG(0, __FUNCTION__
 938                                       "(), Unknown value type!\n");
 939                                 return -1;
 940                         }
 941                         len += sprintf(buf+len, "\n");
 942
 943                         attrib = (struct ias_attrib *)
 944                                 hashbin_get_next(obj->attribs);
 945                 }
 946                 obj = (struct ias_object *) hashbin_get_next(objects);
 947         }
 948         restore_flags(flags);
 949
 950         return len;
 951 }
 952
 953 #endif /* PROC_FS */