1 /*********************************************************************
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: Sat Dec 25 16:42:42 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
14 * Copyright (c) 2000-2003 Jean Tourrilhes <jt@hpl.hp.com>
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
21 * Neither Dag Brattli nor University of Tromsø admit liability nor
22 * provide warranty for any of this software. This material is
23 * provided "AS-IS" and at no charge.
25 ********************************************************************/
27 #include <linux/module.h>
28 #include <linux/types.h>
29 #include <linux/skbuff.h>
31 #include <linux/string.h>
32 #include <linux/init.h>
33 #include <linux/seq_file.h>
34 #include <linux/slab.h>
36 #include <asm/byteorder.h>
37 #include <asm/unaligned.h>
39 #include <net/irda/irda.h>
40 #include <net/irda/irttp.h>
41 #include <net/irda/irlmp.h>
42 #include <net/irda/irias_object.h>
43 #include <net/irda/iriap_event.h>
44 #include <net/irda/iriap.h>
46 #ifdef CONFIG_IRDA_DEBUG
47 /* FIXME: This one should go in irlmp.c */
48 static const char *const ias_charset_types
[] = {
61 #endif /* CONFIG_IRDA_DEBUG */
63 static hashbin_t
*iriap
= NULL
;
64 static void *service_handle
;
66 static void __iriap_close(struct iriap_cb
*self
);
67 static int iriap_register_lsap(struct iriap_cb
*self
, __u8 slsap_sel
, int mode
);
68 static void iriap_disconnect_indication(void *instance
, void *sap
,
69 LM_REASON reason
, struct sk_buff
*skb
);
70 static void iriap_connect_indication(void *instance
, void *sap
,
71 struct qos_info
*qos
, __u32 max_sdu_size
,
74 static void iriap_connect_confirm(void *instance
, void *sap
,
76 __u32 max_sdu_size
, __u8 max_header_size
,
78 static int iriap_data_indication(void *instance
, void *sap
,
81 static void iriap_watchdog_timer_expired(void *data
);
83 static inline void iriap_start_watchdog_timer(struct iriap_cb
*self
,
86 irda_start_timer(&self
->watchdog_timer
, timeout
, self
,
87 iriap_watchdog_timer_expired
);
90 static struct lock_class_key irias_objects_key
;
93 * Function iriap_init (void)
95 * Initializes the IrIAP layer, called by the module initialization code
98 int __init
iriap_init(void)
100 struct ias_object
*obj
;
101 struct iriap_cb
*server
;
105 /* Allocate master array */
106 iriap
= hashbin_new(HB_LOCK
);
110 /* Object repository - defined in irias_object.c */
111 irias_objects
= hashbin_new(HB_LOCK
);
112 if (!irias_objects
) {
113 net_warn_ratelimited("%s: Can't allocate irias_objects hashbin!\n",
115 hashbin_delete(iriap
, NULL
);
119 lockdep_set_class_and_name(&irias_objects
->hb_spinlock
, &irias_objects_key
,
123 * Register some default services for IrLMP
125 hints
= irlmp_service_to_hint(S_COMPUTER
);
126 service_handle
= irlmp_register_service(hints
);
128 /* Register the Device object with LM-IAS */
129 obj
= irias_new_object("Device", IAS_DEVICE_ID
);
130 irias_add_string_attrib(obj
, "DeviceName", "Linux", IAS_KERNEL_ATTR
);
132 oct_seq
[0] = 0x01; /* Version 1 */
133 oct_seq
[1] = 0x00; /* IAS support bits */
134 oct_seq
[2] = 0x00; /* LM-MUX support bits */
135 #ifdef CONFIG_IRDA_ULTRA
136 oct_seq
[2] |= 0x04; /* Connectionless Data support */
138 irias_add_octseq_attrib(obj
, "IrLMPSupport", oct_seq
, 3,
140 irias_insert_object(obj
);
143 * Register server support with IrLMP so we can accept incoming
146 server
= iriap_open(LSAP_IAS
, IAS_SERVER
, NULL
, NULL
);
148 IRDA_DEBUG(0, "%s(), unable to open server\n", __func__
);
151 iriap_register_lsap(server
, LSAP_IAS
, IAS_SERVER
);
157 * Function iriap_cleanup (void)
159 * Initializes the IrIAP layer, called by the module cleanup code in
162 void iriap_cleanup(void)
164 irlmp_unregister_service(service_handle
);
166 hashbin_delete(iriap
, (FREE_FUNC
) __iriap_close
);
167 hashbin_delete(irias_objects
, (FREE_FUNC
) __irias_delete_object
);
171 * Function iriap_open (void)
173 * Opens an instance of the IrIAP layer, and registers with IrLMP
175 struct iriap_cb
*iriap_open(__u8 slsap_sel
, int mode
, void *priv
,
176 CONFIRM_CALLBACK callback
)
178 struct iriap_cb
*self
;
180 IRDA_DEBUG(2, "%s()\n", __func__
);
182 self
= kzalloc(sizeof(*self
), GFP_ATOMIC
);
187 * Initialize instance
190 self
->magic
= IAS_MAGIC
;
192 if (mode
== IAS_CLIENT
)
193 iriap_register_lsap(self
, slsap_sel
, mode
);
195 self
->confirm
= callback
;
198 /* iriap_getvaluebyclass_request() will construct packets before
199 * we connect, so this must have a sane value... Jean II */
200 self
->max_header_size
= LMP_MAX_HEADER
;
202 init_timer(&self
->watchdog_timer
);
204 hashbin_insert(iriap
, (irda_queue_t
*) self
, (long) self
, NULL
);
206 /* Initialize state machines */
207 iriap_next_client_state(self
, S_DISCONNECT
);
208 iriap_next_call_state(self
, S_MAKE_CALL
);
209 iriap_next_server_state(self
, R_DISCONNECT
);
210 iriap_next_r_connect_state(self
, R_WAITING
);
214 EXPORT_SYMBOL(iriap_open
);
217 * Function __iriap_close (self)
219 * Removes (deallocates) the IrIAP instance
222 static void __iriap_close(struct iriap_cb
*self
)
224 IRDA_DEBUG(4, "%s()\n", __func__
);
226 IRDA_ASSERT(self
!= NULL
, return;);
227 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
229 del_timer(&self
->watchdog_timer
);
231 if (self
->request_skb
)
232 dev_kfree_skb(self
->request_skb
);
240 * Function iriap_close (void)
242 * Closes IrIAP and deregisters with IrLMP
244 void iriap_close(struct iriap_cb
*self
)
246 struct iriap_cb
*entry
;
248 IRDA_DEBUG(2, "%s()\n", __func__
);
250 IRDA_ASSERT(self
!= NULL
, return;);
251 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
254 irlmp_close_lsap(self
->lsap
);
258 entry
= (struct iriap_cb
*) hashbin_remove(iriap
, (long) self
, NULL
);
259 IRDA_ASSERT(entry
== self
, return;);
263 EXPORT_SYMBOL(iriap_close
);
265 static int iriap_register_lsap(struct iriap_cb
*self
, __u8 slsap_sel
, int mode
)
269 IRDA_DEBUG(2, "%s()\n", __func__
);
271 irda_notify_init(¬ify
);
272 notify
.connect_confirm
= iriap_connect_confirm
;
273 notify
.connect_indication
= iriap_connect_indication
;
274 notify
.disconnect_indication
= iriap_disconnect_indication
;
275 notify
.data_indication
= iriap_data_indication
;
276 notify
.instance
= self
;
277 if (mode
== IAS_CLIENT
)
278 strcpy(notify
.name
, "IrIAS cli");
280 strcpy(notify
.name
, "IrIAS srv");
282 self
->lsap
= irlmp_open_lsap(slsap_sel
, ¬ify
, 0);
283 if (self
->lsap
== NULL
) {
284 net_err_ratelimited("%s: Unable to allocated LSAP!\n",
288 self
->slsap_sel
= self
->lsap
->slsap_sel
;
294 * Function iriap_disconnect_indication (handle, reason)
296 * Got disconnect, so clean up everything associated with this connection
299 static void iriap_disconnect_indication(void *instance
, void *sap
,
303 struct iriap_cb
*self
;
305 IRDA_DEBUG(4, "%s(), reason=%s [%d]\n", __func__
,
306 irlmp_reason_str(reason
), reason
);
310 IRDA_ASSERT(self
!= NULL
, return;);
311 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
313 IRDA_ASSERT(iriap
!= NULL
, return;);
315 del_timer(&self
->watchdog_timer
);
321 if (self
->mode
== IAS_CLIENT
) {
322 IRDA_DEBUG(4, "%s(), disconnect as client\n", __func__
);
325 iriap_do_client_event(self
, IAP_LM_DISCONNECT_INDICATION
,
328 * Inform service user that the request failed by sending
329 * it a NULL value. Warning, the client might close us, so
330 * remember no to use self anymore after calling confirm
333 self
->confirm(IAS_DISCONNECT
, 0, NULL
, self
->priv
);
335 IRDA_DEBUG(4, "%s(), disconnect as server\n", __func__
);
336 iriap_do_server_event(self
, IAP_LM_DISCONNECT_INDICATION
,
343 * Function iriap_disconnect_request (handle)
345 static void iriap_disconnect_request(struct iriap_cb
*self
)
347 struct sk_buff
*tx_skb
;
349 IRDA_DEBUG(4, "%s()\n", __func__
);
351 IRDA_ASSERT(self
!= NULL
, return;);
352 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
354 tx_skb
= alloc_skb(LMP_MAX_HEADER
, GFP_ATOMIC
);
355 if (tx_skb
== NULL
) {
357 "%s(), Could not allocate an sk_buff of length %d\n",
358 __func__
, LMP_MAX_HEADER
);
363 * Reserve space for MUX control and LAP header
365 skb_reserve(tx_skb
, LMP_MAX_HEADER
);
367 irlmp_disconnect_request(self
->lsap
, tx_skb
);
371 * Function iriap_getvaluebyclass (addr, name, attr)
373 * Retrieve all values from attribute in all objects with given class
376 int iriap_getvaluebyclass_request(struct iriap_cb
*self
,
377 __u32 saddr
, __u32 daddr
,
378 char *name
, char *attr
)
380 struct sk_buff
*tx_skb
;
381 int name_len
, attr_len
, skb_len
;
384 IRDA_ASSERT(self
!= NULL
, return -1;);
385 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return -1;);
387 /* Client must supply the destination device address */
395 * Save operation, so we know what the later indication is about
397 self
->operation
= GET_VALUE_BY_CLASS
;
399 /* Give ourselves 10 secs to finish this operation */
400 iriap_start_watchdog_timer(self
, 10*HZ
);
402 name_len
= strlen(name
); /* Up to IAS_MAX_CLASSNAME = 60 */
403 attr_len
= strlen(attr
); /* Up to IAS_MAX_ATTRIBNAME = 60 */
405 skb_len
= self
->max_header_size
+2+name_len
+1+attr_len
+4;
406 tx_skb
= alloc_skb(skb_len
, GFP_ATOMIC
);
410 /* Reserve space for MUX and LAP header */
411 skb_reserve(tx_skb
, self
->max_header_size
);
412 skb_put(tx_skb
, 3+name_len
+attr_len
);
413 frame
= tx_skb
->data
;
416 frame
[0] = IAP_LST
| GET_VALUE_BY_CLASS
;
417 frame
[1] = name_len
; /* Insert length of name */
418 memcpy(frame
+2, name
, name_len
); /* Insert name */
419 frame
[2+name_len
] = attr_len
; /* Insert length of attr */
420 memcpy(frame
+3+name_len
, attr
, attr_len
); /* Insert attr */
422 iriap_do_client_event(self
, IAP_CALL_REQUEST_GVBC
, tx_skb
);
424 /* Drop reference count - see state_s_disconnect(). */
425 dev_kfree_skb(tx_skb
);
429 EXPORT_SYMBOL(iriap_getvaluebyclass_request
);
432 * Function iriap_getvaluebyclass_confirm (self, skb)
434 * Got result from GetValueByClass command. Parse it and return result
438 static void iriap_getvaluebyclass_confirm(struct iriap_cb
*self
,
441 struct ias_value
*value
;
451 IRDA_ASSERT(self
!= NULL
, return;);
452 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
453 IRDA_ASSERT(skb
!= NULL
, return;);
455 /* Initialize variables */
459 /* Get length, MSB first */
460 len
= get_unaligned_be16(fp
+ n
);
463 IRDA_DEBUG(4, "%s(), len=%d\n", __func__
, len
);
465 /* Get object ID, MSB first */
466 obj_id
= get_unaligned_be16(fp
+ n
);
470 IRDA_DEBUG(4, "%s(), Value type = %d\n", __func__
, type
);
474 memcpy(&tmp_cpu32
, fp
+n
, 4); n
+= 4;
475 be32_to_cpus(&tmp_cpu32
);
476 value
= irias_new_integer_value(tmp_cpu32
);
478 /* Legal values restricted to 0x01-0x6f, page 15 irttp */
479 IRDA_DEBUG(4, "%s(), lsap=%d\n", __func__
, value
->t
.integer
);
487 /* case CS_ISO_8859_1: */
488 /* case CS_ISO_8859_2: */
489 /* case CS_ISO_8859_3: */
490 /* case CS_ISO_8859_4: */
491 /* case CS_ISO_8859_5: */
492 /* case CS_ISO_8859_6: */
493 /* case CS_ISO_8859_7: */
494 /* case CS_ISO_8859_8: */
495 /* case CS_ISO_8859_9: */
496 /* case CS_UNICODE: */
498 IRDA_DEBUG(0, "%s(), charset [%d] %s, not supported\n",
500 charset
< ARRAY_SIZE(ias_charset_types
) ?
501 ias_charset_types
[charset
] :
504 /* Aborting, close connection! */
505 iriap_disconnect_request(self
);
510 IRDA_DEBUG(4, "%s(), strlen=%d\n", __func__
, value_len
);
512 /* Make sure the string is null-terminated */
513 if (n
+ value_len
< skb
->len
)
514 fp
[n
+ value_len
] = 0x00;
515 IRDA_DEBUG(4, "Got string %s\n", fp
+n
);
517 /* Will truncate to IAS_MAX_STRING bytes */
518 value
= irias_new_string_value(fp
+n
);
521 value_len
= get_unaligned_be16(fp
+ n
);
524 /* Will truncate to IAS_MAX_OCTET_STRING bytes */
525 value
= irias_new_octseq_value(fp
+n
, value_len
);
528 value
= irias_new_missing_value();
532 /* Finished, close connection! */
533 iriap_disconnect_request(self
);
535 /* Warning, the client might close us, so remember no to use self
536 * anymore after calling confirm
539 self
->confirm(IAS_SUCCESS
, obj_id
, value
, self
->priv
);
541 IRDA_DEBUG(0, "%s(), missing handler!\n", __func__
);
542 irias_delete_value(value
);
547 * Function iriap_getvaluebyclass_response ()
549 * Send answer back to remote LM-IAS
552 static void iriap_getvaluebyclass_response(struct iriap_cb
*self
,
555 struct ias_value
*value
)
557 struct sk_buff
*tx_skb
;
563 IRDA_DEBUG(4, "%s()\n", __func__
);
565 IRDA_ASSERT(self
!= NULL
, return;);
566 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
567 IRDA_ASSERT(value
!= NULL
, return;);
568 IRDA_ASSERT(value
->len
<= 1024, return;);
570 /* Initialize variables */
574 * We must adjust the size of the response after the length of the
575 * value. We add 32 bytes because of the 6 bytes for the frame and
576 * max 5 bytes for the value coding.
578 tx_skb
= alloc_skb(value
->len
+ self
->max_header_size
+ 32,
583 /* Reserve space for MUX and LAP header */
584 skb_reserve(tx_skb
, self
->max_header_size
);
590 fp
[n
++] = GET_VALUE_BY_CLASS
| IAP_LST
;
593 /* Insert list length (MSB first) */
594 tmp_be16
= htons(0x0001);
595 memcpy(fp
+n
, &tmp_be16
, 2); n
+= 2;
597 /* Insert object identifier ( MSB first) */
598 tmp_be16
= cpu_to_be16(obj_id
);
599 memcpy(fp
+n
, &tmp_be16
, 2); n
+= 2;
601 switch (value
->type
) {
603 skb_put(tx_skb
, 3 + value
->len
);
604 fp
[n
++] = value
->type
;
605 fp
[n
++] = 0; /* ASCII */
606 fp
[n
++] = (__u8
) value
->len
;
607 memcpy(fp
+n
, value
->t
.string
, value
->len
); n
+=value
->len
;
611 fp
[n
++] = value
->type
;
613 tmp_be32
= cpu_to_be32(value
->t
.integer
);
614 memcpy(fp
+n
, &tmp_be32
, 4); n
+= 4;
617 skb_put(tx_skb
, 3 + value
->len
);
618 fp
[n
++] = value
->type
;
620 tmp_be16
= cpu_to_be16(value
->len
);
621 memcpy(fp
+n
, &tmp_be16
, 2); n
+= 2;
622 memcpy(fp
+n
, value
->t
.oct_seq
, value
->len
); n
+=value
->len
;
625 IRDA_DEBUG( 3, "%s: sending IAS_MISSING\n", __func__
);
627 fp
[n
++] = value
->type
;
630 IRDA_DEBUG(0, "%s(), type not implemented!\n", __func__
);
633 iriap_do_r_connect_event(self
, IAP_CALL_RESPONSE
, tx_skb
);
635 /* Drop reference count - see state_r_execute(). */
636 dev_kfree_skb(tx_skb
);
640 * Function iriap_getvaluebyclass_indication (self, skb)
642 * getvaluebyclass is requested from peer LM-IAS
645 static void iriap_getvaluebyclass_indication(struct iriap_cb
*self
,
648 struct ias_object
*obj
;
649 struct ias_attrib
*attrib
;
652 char name
[IAS_MAX_CLASSNAME
+ 1]; /* 60 bytes */
653 char attr
[IAS_MAX_ATTRIBNAME
+ 1]; /* 60 bytes */
657 IRDA_DEBUG(4, "%s()\n", __func__
);
659 IRDA_ASSERT(self
!= NULL
, return;);
660 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
661 IRDA_ASSERT(skb
!= NULL
, return;);
668 IRDA_ASSERT(name_len
< IAS_MAX_CLASSNAME
+ 1, return;);
670 memcpy(name
, fp
+n
, name_len
); n
+=name_len
;
671 name
[name_len
] = '\0';
675 IRDA_ASSERT(attr_len
< IAS_MAX_ATTRIBNAME
+ 1, return;);
677 memcpy(attr
, fp
+n
, attr_len
); n
+=attr_len
;
678 attr
[attr_len
] = '\0';
680 IRDA_DEBUG(4, "LM-IAS: Looking up %s: %s\n", name
, attr
);
681 obj
= irias_find_object(name
);
684 IRDA_DEBUG(2, "LM-IAS: Object %s not found\n", name
);
685 iriap_getvaluebyclass_response(self
, 0x1235, IAS_CLASS_UNKNOWN
,
689 IRDA_DEBUG(4, "LM-IAS: found %s, id=%d\n", obj
->name
, obj
->id
);
691 attrib
= irias_find_attrib(obj
, attr
);
692 if (attrib
== NULL
) {
693 IRDA_DEBUG(2, "LM-IAS: Attribute %s not found\n", attr
);
694 iriap_getvaluebyclass_response(self
, obj
->id
,
700 /* We have a match; send the value. */
701 iriap_getvaluebyclass_response(self
, obj
->id
, IAS_SUCCESS
,
706 * Function iriap_send_ack (void)
711 void iriap_send_ack(struct iriap_cb
*self
)
713 struct sk_buff
*tx_skb
;
716 IRDA_DEBUG(2, "%s()\n", __func__
);
718 IRDA_ASSERT(self
!= NULL
, return;);
719 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
721 tx_skb
= alloc_skb(LMP_MAX_HEADER
+ 1, GFP_ATOMIC
);
725 /* Reserve space for MUX and LAP header */
726 skb_reserve(tx_skb
, self
->max_header_size
);
728 frame
= tx_skb
->data
;
731 frame
[0] = IAP_LST
| IAP_ACK
| self
->operation
;
733 irlmp_data_request(self
->lsap
, tx_skb
);
736 void iriap_connect_request(struct iriap_cb
*self
)
740 IRDA_ASSERT(self
!= NULL
, return;);
741 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
743 ret
= irlmp_connect_request(self
->lsap
, LSAP_IAS
,
744 self
->saddr
, self
->daddr
,
747 IRDA_DEBUG(0, "%s(), connect failed!\n", __func__
);
748 self
->confirm(IAS_DISCONNECT
, 0, NULL
, self
->priv
);
753 * Function iriap_connect_confirm (handle, skb)
755 * LSAP connection confirmed!
758 static void iriap_connect_confirm(void *instance
, void *sap
,
759 struct qos_info
*qos
, __u32 max_seg_size
,
760 __u8 max_header_size
,
763 struct iriap_cb
*self
;
767 IRDA_ASSERT(self
!= NULL
, return;);
768 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
769 IRDA_ASSERT(skb
!= NULL
, return;);
771 self
->max_data_size
= max_seg_size
;
772 self
->max_header_size
= max_header_size
;
774 del_timer(&self
->watchdog_timer
);
776 iriap_do_client_event(self
, IAP_LM_CONNECT_CONFIRM
, skb
);
778 /* Drop reference count - see state_s_make_call(). */
783 * Function iriap_connect_indication ( handle, skb)
785 * Remote LM-IAS is requesting connection
788 static void iriap_connect_indication(void *instance
, void *sap
,
789 struct qos_info
*qos
, __u32 max_seg_size
,
790 __u8 max_header_size
,
793 struct iriap_cb
*self
, *new;
795 IRDA_DEBUG(1, "%s()\n", __func__
);
799 IRDA_ASSERT(skb
!= NULL
, return;);
800 IRDA_ASSERT(self
!= NULL
, goto out
;);
801 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, goto out
;);
803 /* Start new server */
804 new = iriap_open(LSAP_IAS
, IAS_SERVER
, NULL
, NULL
);
806 IRDA_DEBUG(0, "%s(), open failed\n", __func__
);
810 /* Now attach up the new "socket" */
811 new->lsap
= irlmp_dup(self
->lsap
, new);
813 IRDA_DEBUG(0, "%s(), dup failed!\n", __func__
);
817 new->max_data_size
= max_seg_size
;
818 new->max_header_size
= max_header_size
;
820 /* Clean up the original one to keep it in listen state */
821 irlmp_listen(self
->lsap
);
823 iriap_do_server_event(new, IAP_LM_CONNECT_INDICATION
, skb
);
826 /* Drop reference count - see state_r_disconnect(). */
831 * Function iriap_data_indication (handle, skb)
833 * Receives data from connection identified by handle from IrLMP
836 static int iriap_data_indication(void *instance
, void *sap
,
839 struct iriap_cb
*self
;
843 IRDA_DEBUG(3, "%s()\n", __func__
);
847 IRDA_ASSERT(skb
!= NULL
, return 0;);
848 IRDA_ASSERT(self
!= NULL
, goto out
;);
849 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, goto out
;);
853 if (self
->mode
== IAS_SERVER
) {
855 IRDA_DEBUG(4, "%s(), Calling server!\n", __func__
);
856 iriap_do_r_connect_event(self
, IAP_RECV_F_LST
, skb
);
860 if (~opcode
& IAP_LST
) {
861 net_warn_ratelimited("%s:, IrIAS multiframe commands or results is not implemented yet!\n",
866 /* Check for ack frames since they don't contain any data */
867 if (opcode
& IAP_ACK
) {
868 IRDA_DEBUG(0, "%s() Got ack frame!\n", __func__
);
872 opcode
&= ~IAP_LST
; /* Mask away LST bit */
876 IRDA_DEBUG(0, "IrLMP GetInfoBaseDetails not implemented!\n");
878 case GET_VALUE_BY_CLASS
:
879 iriap_do_call_event(self
, IAP_RECV_F_LST
, NULL
);
883 iriap_getvaluebyclass_confirm(self
, skb
);
885 case IAS_CLASS_UNKNOWN
:
886 IRDA_DEBUG(1, "%s(), No such class!\n", __func__
);
887 /* Finished, close connection! */
888 iriap_disconnect_request(self
);
891 * Warning, the client might close us, so remember
892 * no to use self anymore after calling confirm
895 self
->confirm(IAS_CLASS_UNKNOWN
, 0, NULL
,
898 case IAS_ATTRIB_UNKNOWN
:
899 IRDA_DEBUG(1, "%s(), No such attribute!\n", __func__
);
900 /* Finished, close connection! */
901 iriap_disconnect_request(self
);
904 * Warning, the client might close us, so remember
905 * no to use self anymore after calling confirm
908 self
->confirm(IAS_ATTRIB_UNKNOWN
, 0, NULL
,
914 IRDA_DEBUG(0, "%s(), Unknown op-code: %02x\n", __func__
,
920 /* Cleanup - sub-calls will have done skb_get() as needed. */
926 * Function iriap_call_indication (self, skb)
928 * Received call to server from peer LM-IAS
931 void iriap_call_indication(struct iriap_cb
*self
, struct sk_buff
*skb
)
936 IRDA_DEBUG(4, "%s()\n", __func__
);
938 IRDA_ASSERT(self
!= NULL
, return;);
939 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
940 IRDA_ASSERT(skb
!= NULL
, return;);
945 if (~opcode
& 0x80) {
946 net_warn_ratelimited("%s: IrIAS multiframe commands or results is not implemented yet!\n",
950 opcode
&= 0x7f; /* Mask away LST bit */
954 net_warn_ratelimited("%s: GetInfoBaseDetails not implemented yet!\n",
957 case GET_VALUE_BY_CLASS
:
958 iriap_getvaluebyclass_indication(self
, skb
);
961 /* skb will be cleaned up in iriap_data_indication */
965 * Function iriap_watchdog_timer_expired (data)
967 * Query has taken too long time, so abort
970 static void iriap_watchdog_timer_expired(void *data
)
972 struct iriap_cb
*self
= (struct iriap_cb
*) data
;
974 IRDA_ASSERT(self
!= NULL
, return;);
975 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
977 /* iriap_close(self); */
980 #ifdef CONFIG_PROC_FS
982 static const char *const ias_value_types
[] = {
989 static inline struct ias_object
*irias_seq_idx(loff_t pos
)
991 struct ias_object
*obj
;
993 for (obj
= (struct ias_object
*) hashbin_get_first(irias_objects
);
994 obj
; obj
= (struct ias_object
*) hashbin_get_next(irias_objects
)) {
1002 static void *irias_seq_start(struct seq_file
*seq
, loff_t
*pos
)
1004 spin_lock_irq(&irias_objects
->hb_spinlock
);
1006 return *pos
? irias_seq_idx(*pos
- 1) : SEQ_START_TOKEN
;
1009 static void *irias_seq_next(struct seq_file
*seq
, void *v
, loff_t
*pos
)
1013 return (v
== SEQ_START_TOKEN
)
1014 ? (void *) hashbin_get_first(irias_objects
)
1015 : (void *) hashbin_get_next(irias_objects
);
1018 static void irias_seq_stop(struct seq_file
*seq
, void *v
)
1020 spin_unlock_irq(&irias_objects
->hb_spinlock
);
1023 static int irias_seq_show(struct seq_file
*seq
, void *v
)
1025 if (v
== SEQ_START_TOKEN
)
1026 seq_puts(seq
, "LM-IAS Objects:\n");
1028 struct ias_object
*obj
= v
;
1029 struct ias_attrib
*attrib
;
1031 IRDA_ASSERT(obj
->magic
== IAS_OBJECT_MAGIC
, return -EINVAL
;);
1033 seq_printf(seq
, "name: %s, id=%d\n",
1034 obj
->name
, obj
->id
);
1036 /* Careful for priority inversions here !
1037 * All other uses of attrib spinlock are independent of
1038 * the object spinlock, so we are safe. Jean II */
1039 spin_lock(&obj
->attribs
->hb_spinlock
);
1041 /* List all attributes for this object */
1042 for (attrib
= (struct ias_attrib
*) hashbin_get_first(obj
->attribs
);
1044 attrib
= (struct ias_attrib
*) hashbin_get_next(obj
->attribs
)) {
1046 IRDA_ASSERT(attrib
->magic
== IAS_ATTRIB_MAGIC
,
1049 seq_printf(seq
, " - Attribute name: \"%s\", ",
1051 seq_printf(seq
, "value[%s]: ",
1052 ias_value_types
[attrib
->value
->type
]);
1054 switch (attrib
->value
->type
) {
1056 seq_printf(seq
, "%d\n",
1057 attrib
->value
->t
.integer
);
1060 seq_printf(seq
, "\"%s\"\n",
1061 attrib
->value
->t
.string
);
1064 seq_printf(seq
, "octet sequence (%d bytes)\n",
1065 attrib
->value
->len
);
1068 seq_puts(seq
, "missing\n");
1071 seq_printf(seq
, "type %d?\n",
1072 attrib
->value
->type
);
1074 seq_putc(seq
, '\n');
1077 IRDA_ASSERT_LABEL(outloop
:)
1078 spin_unlock(&obj
->attribs
->hb_spinlock
);
1084 static const struct seq_operations irias_seq_ops
= {
1085 .start
= irias_seq_start
,
1086 .next
= irias_seq_next
,
1087 .stop
= irias_seq_stop
,
1088 .show
= irias_seq_show
,
1091 static int irias_seq_open(struct inode
*inode
, struct file
*file
)
1093 IRDA_ASSERT( irias_objects
!= NULL
, return -EINVAL
;);
1095 return seq_open(file
, &irias_seq_ops
);
1098 const struct file_operations irias_seq_fops
= {
1099 .owner
= THIS_MODULE
,
1100 .open
= irias_seq_open
,
1102 .llseek
= seq_lseek
,
1103 .release
= seq_release
,
1106 #endif /* PROC_FS */