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 IRDA_WARNING("%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
);
184 IRDA_WARNING("%s: Unable to kmalloc!\n", __func__
);
189 * Initialize instance
192 self
->magic
= IAS_MAGIC
;
194 if (mode
== IAS_CLIENT
) {
195 if (iriap_register_lsap(self
, slsap_sel
, mode
)) {
201 self
->confirm
= callback
;
204 /* iriap_getvaluebyclass_request() will construct packets before
205 * we connect, so this must have a sane value... Jean II */
206 self
->max_header_size
= LMP_MAX_HEADER
;
208 init_timer(&self
->watchdog_timer
);
210 hashbin_insert(iriap
, (irda_queue_t
*) self
, (long) self
, NULL
);
212 /* Initialize state machines */
213 iriap_next_client_state(self
, S_DISCONNECT
);
214 iriap_next_call_state(self
, S_MAKE_CALL
);
215 iriap_next_server_state(self
, R_DISCONNECT
);
216 iriap_next_r_connect_state(self
, R_WAITING
);
220 EXPORT_SYMBOL(iriap_open
);
223 * Function __iriap_close (self)
225 * Removes (deallocates) the IrIAP instance
228 static void __iriap_close(struct iriap_cb
*self
)
230 IRDA_DEBUG(4, "%s()\n", __func__
);
232 IRDA_ASSERT(self
!= NULL
, return;);
233 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
235 del_timer(&self
->watchdog_timer
);
237 if (self
->request_skb
)
238 dev_kfree_skb(self
->request_skb
);
246 * Function iriap_close (void)
248 * Closes IrIAP and deregisters with IrLMP
250 void iriap_close(struct iriap_cb
*self
)
252 struct iriap_cb
*entry
;
254 IRDA_DEBUG(2, "%s()\n", __func__
);
256 IRDA_ASSERT(self
!= NULL
, return;);
257 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
260 irlmp_close_lsap(self
->lsap
);
264 entry
= (struct iriap_cb
*) hashbin_remove(iriap
, (long) self
, NULL
);
265 IRDA_ASSERT(entry
== self
, return;);
269 EXPORT_SYMBOL(iriap_close
);
271 static int iriap_register_lsap(struct iriap_cb
*self
, __u8 slsap_sel
, int mode
)
275 IRDA_DEBUG(2, "%s()\n", __func__
);
277 irda_notify_init(¬ify
);
278 notify
.connect_confirm
= iriap_connect_confirm
;
279 notify
.connect_indication
= iriap_connect_indication
;
280 notify
.disconnect_indication
= iriap_disconnect_indication
;
281 notify
.data_indication
= iriap_data_indication
;
282 notify
.instance
= self
;
283 if (mode
== IAS_CLIENT
)
284 strcpy(notify
.name
, "IrIAS cli");
286 strcpy(notify
.name
, "IrIAS srv");
288 self
->lsap
= irlmp_open_lsap(slsap_sel
, ¬ify
, 0);
289 if (self
->lsap
== NULL
) {
290 IRDA_ERROR("%s: Unable to allocated LSAP!\n", __func__
);
293 self
->slsap_sel
= self
->lsap
->slsap_sel
;
299 * Function iriap_disconnect_indication (handle, reason)
301 * Got disconnect, so clean up everything associated with this connection
304 static void iriap_disconnect_indication(void *instance
, void *sap
,
308 struct iriap_cb
*self
;
310 IRDA_DEBUG(4, "%s(), reason=%s [%d]\n", __func__
,
311 irlmp_reason_str(reason
), reason
);
315 IRDA_ASSERT(self
!= NULL
, return;);
316 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
318 IRDA_ASSERT(iriap
!= NULL
, return;);
320 del_timer(&self
->watchdog_timer
);
326 if (self
->mode
== IAS_CLIENT
) {
327 IRDA_DEBUG(4, "%s(), disconnect as client\n", __func__
);
330 iriap_do_client_event(self
, IAP_LM_DISCONNECT_INDICATION
,
333 * Inform service user that the request failed by sending
334 * it a NULL value. Warning, the client might close us, so
335 * remember no to use self anymore after calling confirm
338 self
->confirm(IAS_DISCONNECT
, 0, NULL
, self
->priv
);
340 IRDA_DEBUG(4, "%s(), disconnect as server\n", __func__
);
341 iriap_do_server_event(self
, IAP_LM_DISCONNECT_INDICATION
,
348 * Function iriap_disconnect_request (handle)
350 static void iriap_disconnect_request(struct iriap_cb
*self
)
352 struct sk_buff
*tx_skb
;
354 IRDA_DEBUG(4, "%s()\n", __func__
);
356 IRDA_ASSERT(self
!= NULL
, return;);
357 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
359 tx_skb
= alloc_skb(LMP_MAX_HEADER
, GFP_ATOMIC
);
360 if (tx_skb
== NULL
) {
362 "%s(), Could not allocate an sk_buff of length %d\n",
363 __func__
, LMP_MAX_HEADER
);
368 * Reserve space for MUX control and LAP header
370 skb_reserve(tx_skb
, LMP_MAX_HEADER
);
372 irlmp_disconnect_request(self
->lsap
, tx_skb
);
376 * Function iriap_getvaluebyclass (addr, name, attr)
378 * Retrieve all values from attribute in all objects with given class
381 int iriap_getvaluebyclass_request(struct iriap_cb
*self
,
382 __u32 saddr
, __u32 daddr
,
383 char *name
, char *attr
)
385 struct sk_buff
*tx_skb
;
386 int name_len
, attr_len
, skb_len
;
389 IRDA_ASSERT(self
!= NULL
, return -1;);
390 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return -1;);
392 /* Client must supply the destination device address */
400 * Save operation, so we know what the later indication is about
402 self
->operation
= GET_VALUE_BY_CLASS
;
404 /* Give ourselves 10 secs to finish this operation */
405 iriap_start_watchdog_timer(self
, 10*HZ
);
407 name_len
= strlen(name
); /* Up to IAS_MAX_CLASSNAME = 60 */
408 attr_len
= strlen(attr
); /* Up to IAS_MAX_ATTRIBNAME = 60 */
410 skb_len
= self
->max_header_size
+2+name_len
+1+attr_len
+4;
411 tx_skb
= alloc_skb(skb_len
, GFP_ATOMIC
);
415 /* Reserve space for MUX and LAP header */
416 skb_reserve(tx_skb
, self
->max_header_size
);
417 skb_put(tx_skb
, 3+name_len
+attr_len
);
418 frame
= tx_skb
->data
;
421 frame
[0] = IAP_LST
| GET_VALUE_BY_CLASS
;
422 frame
[1] = name_len
; /* Insert length of name */
423 memcpy(frame
+2, name
, name_len
); /* Insert name */
424 frame
[2+name_len
] = attr_len
; /* Insert length of attr */
425 memcpy(frame
+3+name_len
, attr
, attr_len
); /* Insert attr */
427 iriap_do_client_event(self
, IAP_CALL_REQUEST_GVBC
, tx_skb
);
429 /* Drop reference count - see state_s_disconnect(). */
430 dev_kfree_skb(tx_skb
);
434 EXPORT_SYMBOL(iriap_getvaluebyclass_request
);
437 * Function iriap_getvaluebyclass_confirm (self, skb)
439 * Got result from GetValueByClass command. Parse it and return result
443 static void iriap_getvaluebyclass_confirm(struct iriap_cb
*self
,
446 struct ias_value
*value
;
456 IRDA_ASSERT(self
!= NULL
, return;);
457 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
458 IRDA_ASSERT(skb
!= NULL
, return;);
460 /* Initialize variables */
464 /* Get length, MSB first */
465 len
= get_unaligned_be16(fp
+ n
);
468 IRDA_DEBUG(4, "%s(), len=%d\n", __func__
, len
);
470 /* Get object ID, MSB first */
471 obj_id
= get_unaligned_be16(fp
+ n
);
475 IRDA_DEBUG(4, "%s(), Value type = %d\n", __func__
, type
);
479 memcpy(&tmp_cpu32
, fp
+n
, 4); n
+= 4;
480 be32_to_cpus(&tmp_cpu32
);
481 value
= irias_new_integer_value(tmp_cpu32
);
483 /* Legal values restricted to 0x01-0x6f, page 15 irttp */
484 IRDA_DEBUG(4, "%s(), lsap=%d\n", __func__
, value
->t
.integer
);
492 /* case CS_ISO_8859_1: */
493 /* case CS_ISO_8859_2: */
494 /* case CS_ISO_8859_3: */
495 /* case CS_ISO_8859_4: */
496 /* case CS_ISO_8859_5: */
497 /* case CS_ISO_8859_6: */
498 /* case CS_ISO_8859_7: */
499 /* case CS_ISO_8859_8: */
500 /* case CS_ISO_8859_9: */
501 /* case CS_UNICODE: */
503 IRDA_DEBUG(0, "%s(), charset [%d] %s, not supported\n",
505 charset
< ARRAY_SIZE(ias_charset_types
) ?
506 ias_charset_types
[charset
] :
509 /* Aborting, close connection! */
510 iriap_disconnect_request(self
);
515 IRDA_DEBUG(4, "%s(), strlen=%d\n", __func__
, value_len
);
517 /* Make sure the string is null-terminated */
518 if (n
+ value_len
< skb
->len
)
519 fp
[n
+ value_len
] = 0x00;
520 IRDA_DEBUG(4, "Got string %s\n", fp
+n
);
522 /* Will truncate to IAS_MAX_STRING bytes */
523 value
= irias_new_string_value(fp
+n
);
526 value_len
= get_unaligned_be16(fp
+ n
);
529 /* Will truncate to IAS_MAX_OCTET_STRING bytes */
530 value
= irias_new_octseq_value(fp
+n
, value_len
);
533 value
= irias_new_missing_value();
537 /* Finished, close connection! */
538 iriap_disconnect_request(self
);
540 /* Warning, the client might close us, so remember no to use self
541 * anymore after calling confirm
544 self
->confirm(IAS_SUCCESS
, obj_id
, value
, self
->priv
);
546 IRDA_DEBUG(0, "%s(), missing handler!\n", __func__
);
547 irias_delete_value(value
);
552 * Function iriap_getvaluebyclass_response ()
554 * Send answer back to remote LM-IAS
557 static void iriap_getvaluebyclass_response(struct iriap_cb
*self
,
560 struct ias_value
*value
)
562 struct sk_buff
*tx_skb
;
568 IRDA_DEBUG(4, "%s()\n", __func__
);
570 IRDA_ASSERT(self
!= NULL
, return;);
571 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
572 IRDA_ASSERT(value
!= NULL
, return;);
573 IRDA_ASSERT(value
->len
<= 1024, return;);
575 /* Initialize variables */
579 * We must adjust the size of the response after the length of the
580 * value. We add 32 bytes because of the 6 bytes for the frame and
581 * max 5 bytes for the value coding.
583 tx_skb
= alloc_skb(value
->len
+ self
->max_header_size
+ 32,
588 /* Reserve space for MUX and LAP header */
589 skb_reserve(tx_skb
, self
->max_header_size
);
595 fp
[n
++] = GET_VALUE_BY_CLASS
| IAP_LST
;
598 /* Insert list length (MSB first) */
599 tmp_be16
= htons(0x0001);
600 memcpy(fp
+n
, &tmp_be16
, 2); n
+= 2;
602 /* Insert object identifier ( MSB first) */
603 tmp_be16
= cpu_to_be16(obj_id
);
604 memcpy(fp
+n
, &tmp_be16
, 2); n
+= 2;
606 switch (value
->type
) {
608 skb_put(tx_skb
, 3 + value
->len
);
609 fp
[n
++] = value
->type
;
610 fp
[n
++] = 0; /* ASCII */
611 fp
[n
++] = (__u8
) value
->len
;
612 memcpy(fp
+n
, value
->t
.string
, value
->len
); n
+=value
->len
;
616 fp
[n
++] = value
->type
;
618 tmp_be32
= cpu_to_be32(value
->t
.integer
);
619 memcpy(fp
+n
, &tmp_be32
, 4); n
+= 4;
622 skb_put(tx_skb
, 3 + value
->len
);
623 fp
[n
++] = value
->type
;
625 tmp_be16
= cpu_to_be16(value
->len
);
626 memcpy(fp
+n
, &tmp_be16
, 2); n
+= 2;
627 memcpy(fp
+n
, value
->t
.oct_seq
, value
->len
); n
+=value
->len
;
630 IRDA_DEBUG( 3, "%s: sending IAS_MISSING\n", __func__
);
632 fp
[n
++] = value
->type
;
635 IRDA_DEBUG(0, "%s(), type not implemented!\n", __func__
);
638 iriap_do_r_connect_event(self
, IAP_CALL_RESPONSE
, tx_skb
);
640 /* Drop reference count - see state_r_execute(). */
641 dev_kfree_skb(tx_skb
);
645 * Function iriap_getvaluebyclass_indication (self, skb)
647 * getvaluebyclass is requested from peer LM-IAS
650 static void iriap_getvaluebyclass_indication(struct iriap_cb
*self
,
653 struct ias_object
*obj
;
654 struct ias_attrib
*attrib
;
657 char name
[IAS_MAX_CLASSNAME
+ 1]; /* 60 bytes */
658 char attr
[IAS_MAX_ATTRIBNAME
+ 1]; /* 60 bytes */
662 IRDA_DEBUG(4, "%s()\n", __func__
);
664 IRDA_ASSERT(self
!= NULL
, return;);
665 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
666 IRDA_ASSERT(skb
!= NULL
, return;);
673 IRDA_ASSERT(name_len
< IAS_MAX_CLASSNAME
+ 1, return;);
675 memcpy(name
, fp
+n
, name_len
); n
+=name_len
;
676 name
[name_len
] = '\0';
680 IRDA_ASSERT(attr_len
< IAS_MAX_ATTRIBNAME
+ 1, return;);
682 memcpy(attr
, fp
+n
, attr_len
); n
+=attr_len
;
683 attr
[attr_len
] = '\0';
685 IRDA_DEBUG(4, "LM-IAS: Looking up %s: %s\n", name
, attr
);
686 obj
= irias_find_object(name
);
689 IRDA_DEBUG(2, "LM-IAS: Object %s not found\n", name
);
690 iriap_getvaluebyclass_response(self
, 0x1235, IAS_CLASS_UNKNOWN
,
694 IRDA_DEBUG(4, "LM-IAS: found %s, id=%d\n", obj
->name
, obj
->id
);
696 attrib
= irias_find_attrib(obj
, attr
);
697 if (attrib
== NULL
) {
698 IRDA_DEBUG(2, "LM-IAS: Attribute %s not found\n", attr
);
699 iriap_getvaluebyclass_response(self
, obj
->id
,
705 /* We have a match; send the value. */
706 iriap_getvaluebyclass_response(self
, obj
->id
, IAS_SUCCESS
,
711 * Function iriap_send_ack (void)
716 void iriap_send_ack(struct iriap_cb
*self
)
718 struct sk_buff
*tx_skb
;
721 IRDA_DEBUG(2, "%s()\n", __func__
);
723 IRDA_ASSERT(self
!= NULL
, return;);
724 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
726 tx_skb
= alloc_skb(LMP_MAX_HEADER
+ 1, GFP_ATOMIC
);
730 /* Reserve space for MUX and LAP header */
731 skb_reserve(tx_skb
, self
->max_header_size
);
733 frame
= tx_skb
->data
;
736 frame
[0] = IAP_LST
| IAP_ACK
| self
->operation
;
738 irlmp_data_request(self
->lsap
, tx_skb
);
741 void iriap_connect_request(struct iriap_cb
*self
)
745 IRDA_ASSERT(self
!= NULL
, return;);
746 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
748 ret
= irlmp_connect_request(self
->lsap
, LSAP_IAS
,
749 self
->saddr
, self
->daddr
,
752 IRDA_DEBUG(0, "%s(), connect failed!\n", __func__
);
753 self
->confirm(IAS_DISCONNECT
, 0, NULL
, self
->priv
);
758 * Function iriap_connect_confirm (handle, skb)
760 * LSAP connection confirmed!
763 static void iriap_connect_confirm(void *instance
, void *sap
,
764 struct qos_info
*qos
, __u32 max_seg_size
,
765 __u8 max_header_size
,
768 struct iriap_cb
*self
;
772 IRDA_ASSERT(self
!= NULL
, return;);
773 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
774 IRDA_ASSERT(skb
!= NULL
, return;);
776 self
->max_data_size
= max_seg_size
;
777 self
->max_header_size
= max_header_size
;
779 del_timer(&self
->watchdog_timer
);
781 iriap_do_client_event(self
, IAP_LM_CONNECT_CONFIRM
, skb
);
783 /* Drop reference count - see state_s_make_call(). */
788 * Function iriap_connect_indication ( handle, skb)
790 * Remote LM-IAS is requesting connection
793 static void iriap_connect_indication(void *instance
, void *sap
,
794 struct qos_info
*qos
, __u32 max_seg_size
,
795 __u8 max_header_size
,
798 struct iriap_cb
*self
, *new;
800 IRDA_DEBUG(1, "%s()\n", __func__
);
804 IRDA_ASSERT(skb
!= NULL
, return;);
805 IRDA_ASSERT(self
!= NULL
, goto out
;);
806 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, goto out
;);
808 /* Start new server */
809 new = iriap_open(LSAP_IAS
, IAS_SERVER
, NULL
, NULL
);
811 IRDA_DEBUG(0, "%s(), open failed\n", __func__
);
815 /* Now attach up the new "socket" */
816 new->lsap
= irlmp_dup(self
->lsap
, new);
818 IRDA_DEBUG(0, "%s(), dup failed!\n", __func__
);
822 new->max_data_size
= max_seg_size
;
823 new->max_header_size
= max_header_size
;
825 /* Clean up the original one to keep it in listen state */
826 irlmp_listen(self
->lsap
);
828 iriap_do_server_event(new, IAP_LM_CONNECT_INDICATION
, skb
);
831 /* Drop reference count - see state_r_disconnect(). */
836 * Function iriap_data_indication (handle, skb)
838 * Receives data from connection identified by handle from IrLMP
841 static int iriap_data_indication(void *instance
, void *sap
,
844 struct iriap_cb
*self
;
848 IRDA_DEBUG(3, "%s()\n", __func__
);
852 IRDA_ASSERT(skb
!= NULL
, return 0;);
853 IRDA_ASSERT(self
!= NULL
, goto out
;);
854 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, goto out
;);
858 if (self
->mode
== IAS_SERVER
) {
860 IRDA_DEBUG(4, "%s(), Calling server!\n", __func__
);
861 iriap_do_r_connect_event(self
, IAP_RECV_F_LST
, skb
);
865 if (~opcode
& IAP_LST
) {
866 IRDA_WARNING("%s:, IrIAS multiframe commands or "
867 "results is not implemented yet!\n",
872 /* Check for ack frames since they don't contain any data */
873 if (opcode
& IAP_ACK
) {
874 IRDA_DEBUG(0, "%s() Got ack frame!\n", __func__
);
878 opcode
&= ~IAP_LST
; /* Mask away LST bit */
882 IRDA_DEBUG(0, "IrLMP GetInfoBaseDetails not implemented!\n");
884 case GET_VALUE_BY_CLASS
:
885 iriap_do_call_event(self
, IAP_RECV_F_LST
, NULL
);
889 iriap_getvaluebyclass_confirm(self
, skb
);
891 case IAS_CLASS_UNKNOWN
:
892 IRDA_DEBUG(1, "%s(), No such class!\n", __func__
);
893 /* Finished, close connection! */
894 iriap_disconnect_request(self
);
897 * Warning, the client might close us, so remember
898 * no to use self anymore after calling confirm
901 self
->confirm(IAS_CLASS_UNKNOWN
, 0, NULL
,
904 case IAS_ATTRIB_UNKNOWN
:
905 IRDA_DEBUG(1, "%s(), No such attribute!\n", __func__
);
906 /* Finished, close connection! */
907 iriap_disconnect_request(self
);
910 * Warning, the client might close us, so remember
911 * no to use self anymore after calling confirm
914 self
->confirm(IAS_ATTRIB_UNKNOWN
, 0, NULL
,
920 IRDA_DEBUG(0, "%s(), Unknown op-code: %02x\n", __func__
,
926 /* Cleanup - sub-calls will have done skb_get() as needed. */
932 * Function iriap_call_indication (self, skb)
934 * Received call to server from peer LM-IAS
937 void iriap_call_indication(struct iriap_cb
*self
, struct sk_buff
*skb
)
942 IRDA_DEBUG(4, "%s()\n", __func__
);
944 IRDA_ASSERT(self
!= NULL
, return;);
945 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
946 IRDA_ASSERT(skb
!= NULL
, return;);
951 if (~opcode
& 0x80) {
952 IRDA_WARNING("%s: IrIAS multiframe commands or results "
953 "is not implemented yet!\n", __func__
);
956 opcode
&= 0x7f; /* Mask away LST bit */
960 IRDA_WARNING("%s: GetInfoBaseDetails not implemented yet!\n",
963 case GET_VALUE_BY_CLASS
:
964 iriap_getvaluebyclass_indication(self
, skb
);
967 /* skb will be cleaned up in iriap_data_indication */
971 * Function iriap_watchdog_timer_expired (data)
973 * Query has taken too long time, so abort
976 static void iriap_watchdog_timer_expired(void *data
)
978 struct iriap_cb
*self
= (struct iriap_cb
*) data
;
980 IRDA_ASSERT(self
!= NULL
, return;);
981 IRDA_ASSERT(self
->magic
== IAS_MAGIC
, return;);
983 /* iriap_close(self); */
986 #ifdef CONFIG_PROC_FS
988 static const char *const ias_value_types
[] = {
995 static inline struct ias_object
*irias_seq_idx(loff_t pos
)
997 struct ias_object
*obj
;
999 for (obj
= (struct ias_object
*) hashbin_get_first(irias_objects
);
1000 obj
; obj
= (struct ias_object
*) hashbin_get_next(irias_objects
)) {
1008 static void *irias_seq_start(struct seq_file
*seq
, loff_t
*pos
)
1010 spin_lock_irq(&irias_objects
->hb_spinlock
);
1012 return *pos
? irias_seq_idx(*pos
- 1) : SEQ_START_TOKEN
;
1015 static void *irias_seq_next(struct seq_file
*seq
, void *v
, loff_t
*pos
)
1019 return (v
== SEQ_START_TOKEN
)
1020 ? (void *) hashbin_get_first(irias_objects
)
1021 : (void *) hashbin_get_next(irias_objects
);
1024 static void irias_seq_stop(struct seq_file
*seq
, void *v
)
1026 spin_unlock_irq(&irias_objects
->hb_spinlock
);
1029 static int irias_seq_show(struct seq_file
*seq
, void *v
)
1031 if (v
== SEQ_START_TOKEN
)
1032 seq_puts(seq
, "LM-IAS Objects:\n");
1034 struct ias_object
*obj
= v
;
1035 struct ias_attrib
*attrib
;
1037 IRDA_ASSERT(obj
->magic
== IAS_OBJECT_MAGIC
, return -EINVAL
;);
1039 seq_printf(seq
, "name: %s, id=%d\n",
1040 obj
->name
, obj
->id
);
1042 /* Careful for priority inversions here !
1043 * All other uses of attrib spinlock are independent of
1044 * the object spinlock, so we are safe. Jean II */
1045 spin_lock(&obj
->attribs
->hb_spinlock
);
1047 /* List all attributes for this object */
1048 for (attrib
= (struct ias_attrib
*) hashbin_get_first(obj
->attribs
);
1050 attrib
= (struct ias_attrib
*) hashbin_get_next(obj
->attribs
)) {
1052 IRDA_ASSERT(attrib
->magic
== IAS_ATTRIB_MAGIC
,
1055 seq_printf(seq
, " - Attribute name: \"%s\", ",
1057 seq_printf(seq
, "value[%s]: ",
1058 ias_value_types
[attrib
->value
->type
]);
1060 switch (attrib
->value
->type
) {
1062 seq_printf(seq
, "%d\n",
1063 attrib
->value
->t
.integer
);
1066 seq_printf(seq
, "\"%s\"\n",
1067 attrib
->value
->t
.string
);
1070 seq_printf(seq
, "octet sequence (%d bytes)\n",
1071 attrib
->value
->len
);
1074 seq_puts(seq
, "missing\n");
1077 seq_printf(seq
, "type %d?\n",
1078 attrib
->value
->type
);
1080 seq_putc(seq
, '\n');
1083 IRDA_ASSERT_LABEL(outloop
:)
1084 spin_unlock(&obj
->attribs
->hb_spinlock
);
1090 static const struct seq_operations irias_seq_ops
= {
1091 .start
= irias_seq_start
,
1092 .next
= irias_seq_next
,
1093 .stop
= irias_seq_stop
,
1094 .show
= irias_seq_show
,
1097 static int irias_seq_open(struct inode
*inode
, struct file
*file
)
1099 IRDA_ASSERT( irias_objects
!= NULL
, return -EINVAL
;);
1101 return seq_open(file
, &irias_seq_ops
);
1104 const struct file_operations irias_seq_fops
= {
1105 .owner
= THIS_MODULE
,
1106 .open
= irias_seq_open
,
1108 .llseek
= seq_lseek
,
1109 .release
= seq_release
,
1112 #endif /* PROC_FS */