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44
45#include <linux/capability.h>
46#include <linux/module.h>
47#include <linux/types.h>
48#include <linux/socket.h>
49#include <linux/sockios.h>
50#include <linux/slab.h>
51#include <linux/init.h>
52#include <linux/net.h>
53#include <linux/irda.h>
54#include <linux/poll.h>
55
56#include <asm/ioctls.h>
57#include <asm/uaccess.h>
58
59#include <net/sock.h>
60#include <net/tcp_states.h>
61
62#include <net/irda/af_irda.h>
63
64static int irda_create(struct net *net, struct socket *sock, int protocol, int kern);
65
66static const struct proto_ops irda_stream_ops;
67static const struct proto_ops irda_seqpacket_ops;
68static const struct proto_ops irda_dgram_ops;
69
70#ifdef CONFIG_IRDA_ULTRA
71static const struct proto_ops irda_ultra_ops;
72#define ULTRA_MAX_DATA 382
73#endif
74
75#define IRDA_MAX_HEADER (TTP_MAX_HEADER)
76
77
78
79
80
81
82
83static int irda_data_indication(void *instance, void *sap, struct sk_buff *skb)
84{
85 struct irda_sock *self;
86 struct sock *sk;
87 int err;
88
89 IRDA_DEBUG(3, "%s()\n", __func__);
90
91 self = instance;
92 sk = instance;
93
94 err = sock_queue_rcv_skb(sk, skb);
95 if (err) {
96 IRDA_DEBUG(1, "%s(), error: no more mem!\n", __func__);
97 self->rx_flow = FLOW_STOP;
98
99
100 return err;
101 }
102
103 return 0;
104}
105
106
107
108
109
110
111
112static void irda_disconnect_indication(void *instance, void *sap,
113 LM_REASON reason, struct sk_buff *skb)
114{
115 struct irda_sock *self;
116 struct sock *sk;
117
118 self = instance;
119
120 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
121
122
123 if(skb)
124 dev_kfree_skb(skb);
125
126 sk = instance;
127 if (sk == NULL) {
128 IRDA_DEBUG(0, "%s(%p) : BUG : sk is NULL\n",
129 __func__, self);
130 return;
131 }
132
133
134 bh_lock_sock(sk);
135 if (!sock_flag(sk, SOCK_DEAD) && sk->sk_state != TCP_CLOSE) {
136 sk->sk_state = TCP_CLOSE;
137 sk->sk_shutdown |= SEND_SHUTDOWN;
138
139 sk->sk_state_change(sk);
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154 if (self->tsap) {
155 irttp_close_tsap(self->tsap);
156 self->tsap = NULL;
157 }
158 }
159 bh_unlock_sock(sk);
160
161
162
163
164
165
166
167}
168
169
170
171
172
173
174
175static void irda_connect_confirm(void *instance, void *sap,
176 struct qos_info *qos,
177 __u32 max_sdu_size, __u8 max_header_size,
178 struct sk_buff *skb)
179{
180 struct irda_sock *self;
181 struct sock *sk;
182
183 self = instance;
184
185 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
186
187 sk = instance;
188 if (sk == NULL) {
189 dev_kfree_skb(skb);
190 return;
191 }
192
193 dev_kfree_skb(skb);
194
195
196
197 self->max_header_size = max_header_size;
198
199
200 self->max_sdu_size_tx = max_sdu_size;
201
202
203 switch (sk->sk_type) {
204 case SOCK_STREAM:
205 if (max_sdu_size != 0) {
206 IRDA_ERROR("%s: max_sdu_size must be 0\n",
207 __func__);
208 return;
209 }
210 self->max_data_size = irttp_get_max_seg_size(self->tsap);
211 break;
212 case SOCK_SEQPACKET:
213 if (max_sdu_size == 0) {
214 IRDA_ERROR("%s: max_sdu_size cannot be 0\n",
215 __func__);
216 return;
217 }
218 self->max_data_size = max_sdu_size;
219 break;
220 default:
221 self->max_data_size = irttp_get_max_seg_size(self->tsap);
222 }
223
224 IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __func__,
225 self->max_data_size);
226
227 memcpy(&self->qos_tx, qos, sizeof(struct qos_info));
228
229
230 sk->sk_state = TCP_ESTABLISHED;
231 sk->sk_state_change(sk);
232}
233
234
235
236
237
238
239
240static void irda_connect_indication(void *instance, void *sap,
241 struct qos_info *qos, __u32 max_sdu_size,
242 __u8 max_header_size, struct sk_buff *skb)
243{
244 struct irda_sock *self;
245 struct sock *sk;
246
247 self = instance;
248
249 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
250
251 sk = instance;
252 if (sk == NULL) {
253 dev_kfree_skb(skb);
254 return;
255 }
256
257
258 self->max_header_size = max_header_size;
259
260
261 self->max_sdu_size_tx = max_sdu_size;
262
263
264 switch (sk->sk_type) {
265 case SOCK_STREAM:
266 if (max_sdu_size != 0) {
267 IRDA_ERROR("%s: max_sdu_size must be 0\n",
268 __func__);
269 kfree_skb(skb);
270 return;
271 }
272 self->max_data_size = irttp_get_max_seg_size(self->tsap);
273 break;
274 case SOCK_SEQPACKET:
275 if (max_sdu_size == 0) {
276 IRDA_ERROR("%s: max_sdu_size cannot be 0\n",
277 __func__);
278 kfree_skb(skb);
279 return;
280 }
281 self->max_data_size = max_sdu_size;
282 break;
283 default:
284 self->max_data_size = irttp_get_max_seg_size(self->tsap);
285 }
286
287 IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __func__,
288 self->max_data_size);
289
290 memcpy(&self->qos_tx, qos, sizeof(struct qos_info));
291
292 skb_queue_tail(&sk->sk_receive_queue, skb);
293 sk->sk_state_change(sk);
294}
295
296
297
298
299
300
301
302static void irda_connect_response(struct irda_sock *self)
303{
304 struct sk_buff *skb;
305
306 IRDA_DEBUG(2, "%s()\n", __func__);
307
308 skb = alloc_skb(TTP_MAX_HEADER + TTP_SAR_HEADER, GFP_KERNEL);
309 if (skb == NULL) {
310 IRDA_DEBUG(0, "%s() Unable to allocate sk_buff!\n",
311 __func__);
312 return;
313 }
314
315
316 skb_reserve(skb, IRDA_MAX_HEADER);
317
318 irttp_connect_response(self->tsap, self->max_sdu_size_rx, skb);
319}
320
321
322
323
324
325
326
327static void irda_flow_indication(void *instance, void *sap, LOCAL_FLOW flow)
328{
329 struct irda_sock *self;
330 struct sock *sk;
331
332 IRDA_DEBUG(2, "%s()\n", __func__);
333
334 self = instance;
335 sk = instance;
336 BUG_ON(sk == NULL);
337
338 switch (flow) {
339 case FLOW_STOP:
340 IRDA_DEBUG(1, "%s(), IrTTP wants us to slow down\n",
341 __func__);
342 self->tx_flow = flow;
343 break;
344 case FLOW_START:
345 self->tx_flow = flow;
346 IRDA_DEBUG(1, "%s(), IrTTP wants us to start again\n",
347 __func__);
348 wake_up_interruptible(sk_sleep(sk));
349 break;
350 default:
351 IRDA_DEBUG(0, "%s(), Unknown flow command!\n", __func__);
352
353 self->tx_flow = flow;
354 break;
355 }
356}
357
358
359
360
361
362
363
364
365
366static void irda_getvalue_confirm(int result, __u16 obj_id,
367 struct ias_value *value, void *priv)
368{
369 struct irda_sock *self;
370
371 self = priv;
372 if (!self) {
373 IRDA_WARNING("%s: lost myself!\n", __func__);
374 return;
375 }
376
377 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
378
379
380 iriap_close(self->iriap);
381 self->iriap = NULL;
382
383
384 if (result != IAS_SUCCESS) {
385 IRDA_DEBUG(1, "%s(), IAS query failed! (%d)\n", __func__,
386 result);
387
388 self->errno = result;
389
390
391 wake_up_interruptible(&self->query_wait);
392
393 return;
394 }
395
396
397 self->ias_result = value;
398 self->errno = 0;
399
400
401 wake_up_interruptible(&self->query_wait);
402}
403
404
405
406
407
408
409
410
411
412static void irda_selective_discovery_indication(discinfo_t *discovery,
413 DISCOVERY_MODE mode,
414 void *priv)
415{
416 struct irda_sock *self;
417
418 IRDA_DEBUG(2, "%s()\n", __func__);
419
420 self = priv;
421 if (!self) {
422 IRDA_WARNING("%s: lost myself!\n", __func__);
423 return;
424 }
425
426
427 self->cachedaddr = discovery->daddr;
428
429
430 wake_up_interruptible(&self->query_wait);
431}
432
433
434
435
436
437
438
439
440
441static void irda_discovery_timeout(u_long priv)
442{
443 struct irda_sock *self;
444
445 IRDA_DEBUG(2, "%s()\n", __func__);
446
447 self = (struct irda_sock *) priv;
448 BUG_ON(self == NULL);
449
450
451 self->cachelog = NULL;
452 self->cachedaddr = 0;
453 self->errno = -ETIME;
454
455
456 wake_up_interruptible(&self->query_wait);
457}
458
459
460
461
462
463
464
465static int irda_open_tsap(struct irda_sock *self, __u8 tsap_sel, char *name)
466{
467 notify_t notify;
468
469 if (self->tsap) {
470 IRDA_DEBUG(0, "%s: busy!\n", __func__);
471 return -EBUSY;
472 }
473
474
475 irda_notify_init(¬ify);
476 notify.connect_confirm = irda_connect_confirm;
477 notify.connect_indication = irda_connect_indication;
478 notify.disconnect_indication = irda_disconnect_indication;
479 notify.data_indication = irda_data_indication;
480 notify.udata_indication = irda_data_indication;
481 notify.flow_indication = irda_flow_indication;
482 notify.instance = self;
483 strncpy(notify.name, name, NOTIFY_MAX_NAME);
484
485 self->tsap = irttp_open_tsap(tsap_sel, DEFAULT_INITIAL_CREDIT,
486 ¬ify);
487 if (self->tsap == NULL) {
488 IRDA_DEBUG(0, "%s(), Unable to allocate TSAP!\n",
489 __func__);
490 return -ENOMEM;
491 }
492
493 self->stsap_sel = self->tsap->stsap_sel;
494
495 return 0;
496}
497
498
499
500
501
502
503
504#ifdef CONFIG_IRDA_ULTRA
505static int irda_open_lsap(struct irda_sock *self, int pid)
506{
507 notify_t notify;
508
509 if (self->lsap) {
510 IRDA_WARNING("%s(), busy!\n", __func__);
511 return -EBUSY;
512 }
513
514
515 irda_notify_init(¬ify);
516 notify.udata_indication = irda_data_indication;
517 notify.instance = self;
518 strncpy(notify.name, "Ultra", NOTIFY_MAX_NAME);
519
520 self->lsap = irlmp_open_lsap(LSAP_CONNLESS, ¬ify, pid);
521 if (self->lsap == NULL) {
522 IRDA_DEBUG( 0, "%s(), Unable to allocate LSAP!\n", __func__);
523 return -ENOMEM;
524 }
525
526 return 0;
527}
528#endif
529
530
531
532
533
534
535
536
537
538
539
540
541static int irda_find_lsap_sel(struct irda_sock *self, char *name)
542{
543 IRDA_DEBUG(2, "%s(%p, %s)\n", __func__, self, name);
544
545 if (self->iriap) {
546 IRDA_WARNING("%s(): busy with a previous query\n",
547 __func__);
548 return -EBUSY;
549 }
550
551 self->iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self,
552 irda_getvalue_confirm);
553 if(self->iriap == NULL)
554 return -ENOMEM;
555
556
557 self->errno = -EHOSTUNREACH;
558
559
560 iriap_getvaluebyclass_request(self->iriap, self->saddr, self->daddr,
561 name, "IrDA:TinyTP:LsapSel");
562
563
564 if (wait_event_interruptible(self->query_wait, (self->iriap==NULL)))
565
566 return -EHOSTUNREACH;
567
568
569 if (self->errno)
570 {
571
572 if((self->errno == IAS_CLASS_UNKNOWN) ||
573 (self->errno == IAS_ATTRIB_UNKNOWN))
574 return -EADDRNOTAVAIL;
575 else
576 return -EHOSTUNREACH;
577 }
578
579
580 switch (self->ias_result->type) {
581 case IAS_INTEGER:
582 IRDA_DEBUG(4, "%s() int=%d\n",
583 __func__, self->ias_result->t.integer);
584
585 if (self->ias_result->t.integer != -1)
586 self->dtsap_sel = self->ias_result->t.integer;
587 else
588 self->dtsap_sel = 0;
589 break;
590 default:
591 self->dtsap_sel = 0;
592 IRDA_DEBUG(0, "%s(), bad type!\n", __func__);
593 break;
594 }
595 if (self->ias_result)
596 irias_delete_value(self->ias_result);
597
598 if (self->dtsap_sel)
599 return 0;
600
601 return -EADDRNOTAVAIL;
602}
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621static int irda_discover_daddr_and_lsap_sel(struct irda_sock *self, char *name)
622{
623 discinfo_t *discoveries;
624 int number;
625 int i;
626 int err = -ENETUNREACH;
627 __u32 daddr = DEV_ADDR_ANY;
628 __u8 dtsap_sel = 0x0;
629
630 IRDA_DEBUG(2, "%s(), name=%s\n", __func__, name);
631
632
633
634
635
636 discoveries = irlmp_get_discoveries(&number, self->mask.word,
637 self->nslots);
638
639 if (discoveries == NULL)
640 return -ENETUNREACH;
641
642
643
644
645
646
647 for(i = 0; i < number; i++) {
648
649 self->daddr = discoveries[i].daddr;
650 self->saddr = 0x0;
651 IRDA_DEBUG(1, "%s(), trying daddr = %08x\n",
652 __func__, self->daddr);
653
654
655 err = irda_find_lsap_sel(self, name);
656 switch (err) {
657 case 0:
658
659 if(daddr != DEV_ADDR_ANY) {
660 IRDA_DEBUG(1, "%s(), discovered service ''%s'' in two different devices !!!\n",
661 __func__, name);
662 self->daddr = DEV_ADDR_ANY;
663 kfree(discoveries);
664 return -ENOTUNIQ;
665 }
666
667 daddr = self->daddr;
668 dtsap_sel = self->dtsap_sel;
669 break;
670 case -EADDRNOTAVAIL:
671
672 break;
673 default:
674
675 IRDA_DEBUG(0, "%s(), unexpected IAS query failure\n", __func__);
676 self->daddr = DEV_ADDR_ANY;
677 kfree(discoveries);
678 return -EHOSTUNREACH;
679 break;
680 }
681 }
682
683 kfree(discoveries);
684
685
686 if(daddr == DEV_ADDR_ANY) {
687 IRDA_DEBUG(1, "%s(), cannot discover service ''%s'' in any device !!!\n",
688 __func__, name);
689 self->daddr = DEV_ADDR_ANY;
690 return -EADDRNOTAVAIL;
691 }
692
693
694 self->daddr = daddr;
695 self->saddr = 0x0;
696 self->dtsap_sel = dtsap_sel;
697
698 IRDA_DEBUG(1, "%s(), discovered requested service ''%s'' at address %08x\n",
699 __func__, name, self->daddr);
700
701 return 0;
702}
703
704
705
706
707
708
709
710static int irda_getname(struct socket *sock, struct sockaddr *uaddr,
711 int *uaddr_len, int peer)
712{
713 struct sockaddr_irda saddr;
714 struct sock *sk = sock->sk;
715 struct irda_sock *self = irda_sk(sk);
716
717 memset(&saddr, 0, sizeof(saddr));
718 if (peer) {
719 if (sk->sk_state != TCP_ESTABLISHED)
720 return -ENOTCONN;
721
722 saddr.sir_family = AF_IRDA;
723 saddr.sir_lsap_sel = self->dtsap_sel;
724 saddr.sir_addr = self->daddr;
725 } else {
726 saddr.sir_family = AF_IRDA;
727 saddr.sir_lsap_sel = self->stsap_sel;
728 saddr.sir_addr = self->saddr;
729 }
730
731 IRDA_DEBUG(1, "%s(), tsap_sel = %#x\n", __func__, saddr.sir_lsap_sel);
732 IRDA_DEBUG(1, "%s(), addr = %08x\n", __func__, saddr.sir_addr);
733
734
735 *uaddr_len = sizeof (struct sockaddr_irda);
736 memcpy(uaddr, &saddr, *uaddr_len);
737
738 return 0;
739}
740
741
742
743
744
745
746
747static int irda_listen(struct socket *sock, int backlog)
748{
749 struct sock *sk = sock->sk;
750 int err = -EOPNOTSUPP;
751
752 IRDA_DEBUG(2, "%s()\n", __func__);
753
754 lock_sock(sk);
755
756 if ((sk->sk_type != SOCK_STREAM) && (sk->sk_type != SOCK_SEQPACKET) &&
757 (sk->sk_type != SOCK_DGRAM))
758 goto out;
759
760 if (sk->sk_state != TCP_LISTEN) {
761 sk->sk_max_ack_backlog = backlog;
762 sk->sk_state = TCP_LISTEN;
763
764 err = 0;
765 }
766out:
767 release_sock(sk);
768
769 return err;
770}
771
772
773
774
775
776
777
778static int irda_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
779{
780 struct sock *sk = sock->sk;
781 struct sockaddr_irda *addr = (struct sockaddr_irda *) uaddr;
782 struct irda_sock *self = irda_sk(sk);
783 int err;
784
785 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
786
787 if (addr_len != sizeof(struct sockaddr_irda))
788 return -EINVAL;
789
790 lock_sock(sk);
791#ifdef CONFIG_IRDA_ULTRA
792
793 if ((sk->sk_type == SOCK_DGRAM) &&
794 (sk->sk_protocol == IRDAPROTO_ULTRA)) {
795 self->pid = addr->sir_lsap_sel;
796 err = -EOPNOTSUPP;
797 if (self->pid & 0x80) {
798 IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __func__);
799 goto out;
800 }
801 err = irda_open_lsap(self, self->pid);
802 if (err < 0)
803 goto out;
804
805
806 sock->state = SS_CONNECTED;
807 sk->sk_state = TCP_ESTABLISHED;
808 err = 0;
809
810 goto out;
811 }
812#endif
813
814 self->ias_obj = irias_new_object(addr->sir_name, jiffies);
815 err = -ENOMEM;
816 if (self->ias_obj == NULL)
817 goto out;
818
819 err = irda_open_tsap(self, addr->sir_lsap_sel, addr->sir_name);
820 if (err < 0) {
821 irias_delete_object(self->ias_obj);
822 self->ias_obj = NULL;
823 goto out;
824 }
825
826
827 irias_add_integer_attrib(self->ias_obj, "IrDA:TinyTP:LsapSel",
828 self->stsap_sel, IAS_KERNEL_ATTR);
829 irias_insert_object(self->ias_obj);
830
831 err = 0;
832out:
833 release_sock(sk);
834 return err;
835}
836
837
838
839
840
841
842
843static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
844{
845 struct sock *sk = sock->sk;
846 struct irda_sock *new, *self = irda_sk(sk);
847 struct sock *newsk;
848 struct sk_buff *skb;
849 int err;
850
851 IRDA_DEBUG(2, "%s()\n", __func__);
852
853 err = irda_create(sock_net(sk), newsock, sk->sk_protocol, 0);
854 if (err)
855 return err;
856
857 err = -EINVAL;
858
859 lock_sock(sk);
860 if (sock->state != SS_UNCONNECTED)
861 goto out;
862
863 if ((sk = sock->sk) == NULL)
864 goto out;
865
866 err = -EOPNOTSUPP;
867 if ((sk->sk_type != SOCK_STREAM) && (sk->sk_type != SOCK_SEQPACKET) &&
868 (sk->sk_type != SOCK_DGRAM))
869 goto out;
870
871 err = -EINVAL;
872 if (sk->sk_state != TCP_LISTEN)
873 goto out;
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888 while (1) {
889 skb = skb_dequeue(&sk->sk_receive_queue);
890 if (skb)
891 break;
892
893
894 err = -EWOULDBLOCK;
895 if (flags & O_NONBLOCK)
896 goto out;
897
898 err = wait_event_interruptible(*(sk_sleep(sk)),
899 skb_peek(&sk->sk_receive_queue));
900 if (err)
901 goto out;
902 }
903
904 newsk = newsock->sk;
905 err = -EIO;
906 if (newsk == NULL)
907 goto out;
908
909 newsk->sk_state = TCP_ESTABLISHED;
910
911 new = irda_sk(newsk);
912
913
914 new->tsap = irttp_dup(self->tsap, new);
915 err = -EPERM;
916 if (!new->tsap) {
917 IRDA_DEBUG(0, "%s(), dup failed!\n", __func__);
918 kfree_skb(skb);
919 goto out;
920 }
921
922 new->stsap_sel = new->tsap->stsap_sel;
923 new->dtsap_sel = new->tsap->dtsap_sel;
924 new->saddr = irttp_get_saddr(new->tsap);
925 new->daddr = irttp_get_daddr(new->tsap);
926
927 new->max_sdu_size_tx = self->max_sdu_size_tx;
928 new->max_sdu_size_rx = self->max_sdu_size_rx;
929 new->max_data_size = self->max_data_size;
930 new->max_header_size = self->max_header_size;
931
932 memcpy(&new->qos_tx, &self->qos_tx, sizeof(struct qos_info));
933
934
935 irttp_listen(self->tsap);
936
937 kfree_skb(skb);
938 sk->sk_ack_backlog--;
939
940 newsock->state = SS_CONNECTED;
941
942 irda_connect_response(new);
943 err = 0;
944out:
945 release_sock(sk);
946 return err;
947}
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969static int irda_connect(struct socket *sock, struct sockaddr *uaddr,
970 int addr_len, int flags)
971{
972 struct sock *sk = sock->sk;
973 struct sockaddr_irda *addr = (struct sockaddr_irda *) uaddr;
974 struct irda_sock *self = irda_sk(sk);
975 int err;
976
977 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
978
979 lock_sock(sk);
980
981 err = -ESOCKTNOSUPPORT;
982 if ((sk->sk_type == SOCK_DGRAM) && (sk->sk_protocol == IRDAPROTO_ULTRA))
983 goto out;
984
985 if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) {
986 sock->state = SS_CONNECTED;
987 err = 0;
988 goto out;
989 }
990
991 if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) {
992 sock->state = SS_UNCONNECTED;
993 err = -ECONNREFUSED;
994 goto out;
995 }
996
997 err = -EISCONN;
998 if (sk->sk_state == TCP_ESTABLISHED)
999 goto out;
1000
1001 sk->sk_state = TCP_CLOSE;
1002 sock->state = SS_UNCONNECTED;
1003
1004 err = -EINVAL;
1005 if (addr_len != sizeof(struct sockaddr_irda))
1006 goto out;
1007
1008
1009 if ((!addr->sir_addr) || (addr->sir_addr == DEV_ADDR_ANY)) {
1010
1011 err = irda_discover_daddr_and_lsap_sel(self, addr->sir_name);
1012 if (err) {
1013 IRDA_DEBUG(0, "%s(), auto-connect failed!\n", __func__);
1014 goto out;
1015 }
1016 } else {
1017
1018 self->daddr = addr->sir_addr;
1019 IRDA_DEBUG(1, "%s(), daddr = %08x\n", __func__, self->daddr);
1020
1021
1022
1023
1024 if((addr->sir_name[0] != '\0') ||
1025 (addr->sir_lsap_sel >= 0x70)) {
1026
1027 err = irda_find_lsap_sel(self, addr->sir_name);
1028 if (err) {
1029 IRDA_DEBUG(0, "%s(), connect failed!\n", __func__);
1030 goto out;
1031 }
1032 } else {
1033
1034
1035
1036
1037 self->dtsap_sel = addr->sir_lsap_sel;
1038 }
1039 }
1040
1041
1042 if (!self->tsap)
1043 irda_open_tsap(self, LSAP_ANY, addr->sir_name);
1044
1045
1046 sock->state = SS_CONNECTING;
1047 sk->sk_state = TCP_SYN_SENT;
1048
1049
1050 err = irttp_connect_request(self->tsap, self->dtsap_sel,
1051 self->saddr, self->daddr, NULL,
1052 self->max_sdu_size_rx, NULL);
1053 if (err) {
1054 IRDA_DEBUG(0, "%s(), connect failed!\n", __func__);
1055 goto out;
1056 }
1057
1058
1059 err = -EINPROGRESS;
1060 if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK))
1061 goto out;
1062
1063 err = -ERESTARTSYS;
1064 if (wait_event_interruptible(*(sk_sleep(sk)),
1065 (sk->sk_state != TCP_SYN_SENT)))
1066 goto out;
1067
1068 if (sk->sk_state != TCP_ESTABLISHED) {
1069 sock->state = SS_UNCONNECTED;
1070 if (sk->sk_prot->disconnect(sk, flags))
1071 sock->state = SS_DISCONNECTING;
1072 err = sock_error(sk);
1073 if (!err)
1074 err = -ECONNRESET;
1075 goto out;
1076 }
1077
1078 sock->state = SS_CONNECTED;
1079
1080
1081 self->saddr = irttp_get_saddr(self->tsap);
1082 err = 0;
1083out:
1084 release_sock(sk);
1085 return err;
1086}
1087
1088static struct proto irda_proto = {
1089 .name = "IRDA",
1090 .owner = THIS_MODULE,
1091 .obj_size = sizeof(struct irda_sock),
1092};
1093
1094
1095
1096
1097
1098
1099
1100static int irda_create(struct net *net, struct socket *sock, int protocol,
1101 int kern)
1102{
1103 struct sock *sk;
1104 struct irda_sock *self;
1105
1106 IRDA_DEBUG(2, "%s()\n", __func__);
1107
1108 if (net != &init_net)
1109 return -EAFNOSUPPORT;
1110
1111
1112 switch (sock->type) {
1113 case SOCK_STREAM:
1114 case SOCK_SEQPACKET:
1115 case SOCK_DGRAM:
1116 break;
1117 default:
1118 return -ESOCKTNOSUPPORT;
1119 }
1120
1121
1122 sk = sk_alloc(net, PF_IRDA, GFP_KERNEL, &irda_proto);
1123 if (sk == NULL)
1124 return -ENOMEM;
1125
1126 self = irda_sk(sk);
1127 IRDA_DEBUG(2, "%s() : self is %p\n", __func__, self);
1128
1129 init_waitqueue_head(&self->query_wait);
1130
1131 switch (sock->type) {
1132 case SOCK_STREAM:
1133 sock->ops = &irda_stream_ops;
1134 self->max_sdu_size_rx = TTP_SAR_DISABLE;
1135 break;
1136 case SOCK_SEQPACKET:
1137 sock->ops = &irda_seqpacket_ops;
1138 self->max_sdu_size_rx = TTP_SAR_UNBOUND;
1139 break;
1140 case SOCK_DGRAM:
1141 switch (protocol) {
1142#ifdef CONFIG_IRDA_ULTRA
1143 case IRDAPROTO_ULTRA:
1144 sock->ops = &irda_ultra_ops;
1145
1146
1147 self->max_data_size = ULTRA_MAX_DATA - LMP_PID_HEADER;
1148 self->max_header_size = IRDA_MAX_HEADER + LMP_PID_HEADER;
1149 break;
1150#endif
1151 case IRDAPROTO_UNITDATA:
1152 sock->ops = &irda_dgram_ops;
1153
1154 self->max_sdu_size_rx = TTP_SAR_UNBOUND;
1155 break;
1156 default:
1157 sk_free(sk);
1158 return -ESOCKTNOSUPPORT;
1159 }
1160 break;
1161 default:
1162 sk_free(sk);
1163 return -ESOCKTNOSUPPORT;
1164 }
1165
1166
1167 sock_init_data(sock, sk);
1168 sk->sk_family = PF_IRDA;
1169 sk->sk_protocol = protocol;
1170
1171
1172 self->ckey = irlmp_register_client(0, NULL, NULL, NULL);
1173 self->mask.word = 0xffff;
1174 self->rx_flow = self->tx_flow = FLOW_START;
1175 self->nslots = DISCOVERY_DEFAULT_SLOTS;
1176 self->daddr = DEV_ADDR_ANY;
1177 self->saddr = 0x0;
1178 return 0;
1179}
1180
1181
1182
1183
1184
1185
1186
1187static void irda_destroy_socket(struct irda_sock *self)
1188{
1189 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
1190
1191
1192 irlmp_unregister_client(self->ckey);
1193 irlmp_unregister_service(self->skey);
1194
1195
1196 if (self->ias_obj) {
1197 irias_delete_object(self->ias_obj);
1198 self->ias_obj = NULL;
1199 }
1200
1201 if (self->iriap) {
1202 iriap_close(self->iriap);
1203 self->iriap = NULL;
1204 }
1205
1206 if (self->tsap) {
1207 irttp_disconnect_request(self->tsap, NULL, P_NORMAL);
1208 irttp_close_tsap(self->tsap);
1209 self->tsap = NULL;
1210 }
1211#ifdef CONFIG_IRDA_ULTRA
1212 if (self->lsap) {
1213 irlmp_close_lsap(self->lsap);
1214 self->lsap = NULL;
1215 }
1216#endif
1217}
1218
1219
1220
1221
1222static int irda_release(struct socket *sock)
1223{
1224 struct sock *sk = sock->sk;
1225
1226 IRDA_DEBUG(2, "%s()\n", __func__);
1227
1228 if (sk == NULL)
1229 return 0;
1230
1231 lock_sock(sk);
1232 sk->sk_state = TCP_CLOSE;
1233 sk->sk_shutdown |= SEND_SHUTDOWN;
1234 sk->sk_state_change(sk);
1235
1236
1237 irda_destroy_socket(irda_sk(sk));
1238
1239 sock_orphan(sk);
1240 sock->sk = NULL;
1241 release_sock(sk);
1242
1243
1244 skb_queue_purge(&sk->sk_receive_queue);
1245
1246
1247
1248 sock_put(sk);
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276 return 0;
1277}
1278
1279
1280
1281
1282
1283
1284
1285
1286static int irda_sendmsg(struct kiocb *iocb, struct socket *sock,
1287 struct msghdr *msg, size_t len)
1288{
1289 struct sock *sk = sock->sk;
1290 struct irda_sock *self;
1291 struct sk_buff *skb;
1292 int err = -EPIPE;
1293
1294 IRDA_DEBUG(4, "%s(), len=%zd\n", __func__, len);
1295
1296
1297 if (msg->msg_flags & ~(MSG_DONTWAIT | MSG_EOR | MSG_CMSG_COMPAT |
1298 MSG_NOSIGNAL)) {
1299 return -EINVAL;
1300 }
1301
1302 lock_sock(sk);
1303
1304 if (sk->sk_shutdown & SEND_SHUTDOWN)
1305 goto out_err;
1306
1307 if (sk->sk_state != TCP_ESTABLISHED) {
1308 err = -ENOTCONN;
1309 goto out;
1310 }
1311
1312 self = irda_sk(sk);
1313
1314
1315
1316 if (wait_event_interruptible(*(sk_sleep(sk)),
1317 (self->tx_flow != FLOW_STOP || sk->sk_state != TCP_ESTABLISHED))) {
1318 err = -ERESTARTSYS;
1319 goto out;
1320 }
1321
1322
1323 if (sk->sk_state != TCP_ESTABLISHED) {
1324 err = -ENOTCONN;
1325 goto out;
1326 }
1327
1328
1329 if (len > self->max_data_size) {
1330 IRDA_DEBUG(2, "%s(), Chopping frame from %zd to %d bytes!\n",
1331 __func__, len, self->max_data_size);
1332 len = self->max_data_size;
1333 }
1334
1335 skb = sock_alloc_send_skb(sk, len + self->max_header_size + 16,
1336 msg->msg_flags & MSG_DONTWAIT, &err);
1337 if (!skb)
1338 goto out_err;
1339
1340 skb_reserve(skb, self->max_header_size + 16);
1341 skb_reset_transport_header(skb);
1342 skb_put(skb, len);
1343 err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
1344 if (err) {
1345 kfree_skb(skb);
1346 goto out_err;
1347 }
1348
1349
1350
1351
1352
1353 err = irttp_data_request(self->tsap, skb);
1354 if (err) {
1355 IRDA_DEBUG(0, "%s(), err=%d\n", __func__, err);
1356 goto out_err;
1357 }
1358
1359 release_sock(sk);
1360
1361 return len;
1362
1363out_err:
1364 err = sk_stream_error(sk, msg->msg_flags, err);
1365out:
1366 release_sock(sk);
1367 return err;
1368
1369}
1370
1371
1372
1373
1374
1375
1376
1377static int irda_recvmsg_dgram(struct kiocb *iocb, struct socket *sock,
1378 struct msghdr *msg, size_t size, int flags)
1379{
1380 struct sock *sk = sock->sk;
1381 struct irda_sock *self = irda_sk(sk);
1382 struct sk_buff *skb;
1383 size_t copied;
1384 int err;
1385
1386 IRDA_DEBUG(4, "%s()\n", __func__);
1387
1388 msg->msg_namelen = 0;
1389
1390 skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT,
1391 flags & MSG_DONTWAIT, &err);
1392 if (!skb)
1393 return err;
1394
1395 skb_reset_transport_header(skb);
1396 copied = skb->len;
1397
1398 if (copied > size) {
1399 IRDA_DEBUG(2, "%s(), Received truncated frame (%zd < %zd)!\n",
1400 __func__, copied, size);
1401 copied = size;
1402 msg->msg_flags |= MSG_TRUNC;
1403 }
1404 skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
1405
1406 skb_free_datagram(sk, skb);
1407
1408
1409
1410
1411
1412
1413
1414 if (self->rx_flow == FLOW_STOP) {
1415 if ((atomic_read(&sk->sk_rmem_alloc) << 2) <= sk->sk_rcvbuf) {
1416 IRDA_DEBUG(2, "%s(), Starting IrTTP\n", __func__);
1417 self->rx_flow = FLOW_START;
1418 irttp_flow_request(self->tsap, FLOW_START);
1419 }
1420 }
1421
1422 return copied;
1423}
1424
1425
1426
1427
1428static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock,
1429 struct msghdr *msg, size_t size, int flags)
1430{
1431 struct sock *sk = sock->sk;
1432 struct irda_sock *self = irda_sk(sk);
1433 int noblock = flags & MSG_DONTWAIT;
1434 size_t copied = 0;
1435 int target, err;
1436 long timeo;
1437
1438 IRDA_DEBUG(3, "%s()\n", __func__);
1439
1440 if ((err = sock_error(sk)) < 0)
1441 return err;
1442
1443 if (sock->flags & __SO_ACCEPTCON)
1444 return -EINVAL;
1445
1446 err =-EOPNOTSUPP;
1447 if (flags & MSG_OOB)
1448 return -EOPNOTSUPP;
1449
1450 err = 0;
1451 target = sock_rcvlowat(sk, flags & MSG_WAITALL, size);
1452 timeo = sock_rcvtimeo(sk, noblock);
1453
1454 msg->msg_namelen = 0;
1455
1456 do {
1457 int chunk;
1458 struct sk_buff *skb = skb_dequeue(&sk->sk_receive_queue);
1459
1460 if (skb == NULL) {
1461 DEFINE_WAIT(wait);
1462 err = 0;
1463
1464 if (copied >= target)
1465 break;
1466
1467 prepare_to_wait_exclusive(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
1468
1469
1470
1471
1472 err = sock_error(sk);
1473 if (err)
1474 ;
1475 else if (sk->sk_shutdown & RCV_SHUTDOWN)
1476 ;
1477 else if (noblock)
1478 err = -EAGAIN;
1479 else if (signal_pending(current))
1480 err = sock_intr_errno(timeo);
1481 else if (sk->sk_state != TCP_ESTABLISHED)
1482 err = -ENOTCONN;
1483 else if (skb_peek(&sk->sk_receive_queue) == NULL)
1484
1485 schedule();
1486
1487 finish_wait(sk_sleep(sk), &wait);
1488
1489 if (err)
1490 return err;
1491 if (sk->sk_shutdown & RCV_SHUTDOWN)
1492 break;
1493
1494 continue;
1495 }
1496
1497 chunk = min_t(unsigned int, skb->len, size);
1498 if (memcpy_toiovec(msg->msg_iov, skb->data, chunk)) {
1499 skb_queue_head(&sk->sk_receive_queue, skb);
1500 if (copied == 0)
1501 copied = -EFAULT;
1502 break;
1503 }
1504 copied += chunk;
1505 size -= chunk;
1506
1507
1508 if (!(flags & MSG_PEEK)) {
1509 skb_pull(skb, chunk);
1510
1511
1512 if (skb->len) {
1513 IRDA_DEBUG(1, "%s(), back on q!\n",
1514 __func__);
1515 skb_queue_head(&sk->sk_receive_queue, skb);
1516 break;
1517 }
1518
1519 kfree_skb(skb);
1520 } else {
1521 IRDA_DEBUG(0, "%s() questionable!?\n", __func__);
1522
1523
1524 skb_queue_head(&sk->sk_receive_queue, skb);
1525 break;
1526 }
1527 } while (size);
1528
1529
1530
1531
1532
1533
1534
1535 if (self->rx_flow == FLOW_STOP) {
1536 if ((atomic_read(&sk->sk_rmem_alloc) << 2) <= sk->sk_rcvbuf) {
1537 IRDA_DEBUG(2, "%s(), Starting IrTTP\n", __func__);
1538 self->rx_flow = FLOW_START;
1539 irttp_flow_request(self->tsap, FLOW_START);
1540 }
1541 }
1542
1543 return copied;
1544}
1545
1546
1547
1548
1549
1550
1551
1552
1553static int irda_sendmsg_dgram(struct kiocb *iocb, struct socket *sock,
1554 struct msghdr *msg, size_t len)
1555{
1556 struct sock *sk = sock->sk;
1557 struct irda_sock *self;
1558 struct sk_buff *skb;
1559 int err;
1560
1561 IRDA_DEBUG(4, "%s(), len=%zd\n", __func__, len);
1562
1563 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT))
1564 return -EINVAL;
1565
1566 lock_sock(sk);
1567
1568 if (sk->sk_shutdown & SEND_SHUTDOWN) {
1569 send_sig(SIGPIPE, current, 0);
1570 err = -EPIPE;
1571 goto out;
1572 }
1573
1574 err = -ENOTCONN;
1575 if (sk->sk_state != TCP_ESTABLISHED)
1576 goto out;
1577
1578 self = irda_sk(sk);
1579
1580
1581
1582
1583
1584 if (len > self->max_data_size) {
1585 IRDA_DEBUG(0, "%s(), Warning to much data! "
1586 "Chopping frame from %zd to %d bytes!\n",
1587 __func__, len, self->max_data_size);
1588 len = self->max_data_size;
1589 }
1590
1591 skb = sock_alloc_send_skb(sk, len + self->max_header_size,
1592 msg->msg_flags & MSG_DONTWAIT, &err);
1593 err = -ENOBUFS;
1594 if (!skb)
1595 goto out;
1596
1597 skb_reserve(skb, self->max_header_size);
1598 skb_reset_transport_header(skb);
1599
1600 IRDA_DEBUG(4, "%s(), appending user data\n", __func__);
1601 skb_put(skb, len);
1602 err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
1603 if (err) {
1604 kfree_skb(skb);
1605 goto out;
1606 }
1607
1608
1609
1610
1611
1612 err = irttp_udata_request(self->tsap, skb);
1613 if (err) {
1614 IRDA_DEBUG(0, "%s(), err=%d\n", __func__, err);
1615 goto out;
1616 }
1617
1618 release_sock(sk);
1619 return len;
1620
1621out:
1622 release_sock(sk);
1623 return err;
1624}
1625
1626
1627
1628
1629
1630
1631
1632#ifdef CONFIG_IRDA_ULTRA
1633static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
1634 struct msghdr *msg, size_t len)
1635{
1636 struct sock *sk = sock->sk;
1637 struct irda_sock *self;
1638 __u8 pid = 0;
1639 int bound = 0;
1640 struct sk_buff *skb;
1641 int err;
1642
1643 IRDA_DEBUG(4, "%s(), len=%zd\n", __func__, len);
1644
1645 err = -EINVAL;
1646 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT))
1647 return -EINVAL;
1648
1649 lock_sock(sk);
1650
1651 err = -EPIPE;
1652 if (sk->sk_shutdown & SEND_SHUTDOWN) {
1653 send_sig(SIGPIPE, current, 0);
1654 goto out;
1655 }
1656
1657 self = irda_sk(sk);
1658
1659
1660 if (msg->msg_name) {
1661 struct sockaddr_irda *addr = (struct sockaddr_irda *) msg->msg_name;
1662 err = -EINVAL;
1663
1664 if (msg->msg_namelen < sizeof(*addr))
1665 goto out;
1666 if (addr->sir_family != AF_IRDA)
1667 goto out;
1668
1669 pid = addr->sir_lsap_sel;
1670 if (pid & 0x80) {
1671 IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __func__);
1672 err = -EOPNOTSUPP;
1673 goto out;
1674 }
1675 } else {
1676
1677
1678 if ((self->lsap == NULL) ||
1679 (sk->sk_state != TCP_ESTABLISHED)) {
1680 IRDA_DEBUG(0, "%s(), socket not bound to Ultra PID.\n",
1681 __func__);
1682 err = -ENOTCONN;
1683 goto out;
1684 }
1685
1686 bound = 1;
1687 }
1688
1689
1690
1691
1692
1693 if (len > self->max_data_size) {
1694 IRDA_DEBUG(0, "%s(), Warning to much data! "
1695 "Chopping frame from %zd to %d bytes!\n",
1696 __func__, len, self->max_data_size);
1697 len = self->max_data_size;
1698 }
1699
1700 skb = sock_alloc_send_skb(sk, len + self->max_header_size,
1701 msg->msg_flags & MSG_DONTWAIT, &err);
1702 err = -ENOBUFS;
1703 if (!skb)
1704 goto out;
1705
1706 skb_reserve(skb, self->max_header_size);
1707 skb_reset_transport_header(skb);
1708
1709 IRDA_DEBUG(4, "%s(), appending user data\n", __func__);
1710 skb_put(skb, len);
1711 err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
1712 if (err) {
1713 kfree_skb(skb);
1714 goto out;
1715 }
1716
1717 err = irlmp_connless_data_request((bound ? self->lsap : NULL),
1718 skb, pid);
1719 if (err)
1720 IRDA_DEBUG(0, "%s(), err=%d\n", __func__, err);
1721out:
1722 release_sock(sk);
1723 return err ? : len;
1724}
1725#endif
1726
1727
1728
1729
1730static int irda_shutdown(struct socket *sock, int how)
1731{
1732 struct sock *sk = sock->sk;
1733 struct irda_sock *self = irda_sk(sk);
1734
1735 IRDA_DEBUG(1, "%s(%p)\n", __func__, self);
1736
1737 lock_sock(sk);
1738
1739 sk->sk_state = TCP_CLOSE;
1740 sk->sk_shutdown |= SEND_SHUTDOWN;
1741 sk->sk_state_change(sk);
1742
1743 if (self->iriap) {
1744 iriap_close(self->iriap);
1745 self->iriap = NULL;
1746 }
1747
1748 if (self->tsap) {
1749 irttp_disconnect_request(self->tsap, NULL, P_NORMAL);
1750 irttp_close_tsap(self->tsap);
1751 self->tsap = NULL;
1752 }
1753
1754
1755 self->rx_flow = self->tx_flow = FLOW_START;
1756 self->daddr = DEV_ADDR_ANY;
1757 self->saddr = 0x0;
1758
1759 release_sock(sk);
1760
1761 return 0;
1762}
1763
1764
1765
1766
1767static unsigned int irda_poll(struct file * file, struct socket *sock,
1768 poll_table *wait)
1769{
1770 struct sock *sk = sock->sk;
1771 struct irda_sock *self = irda_sk(sk);
1772 unsigned int mask;
1773
1774 IRDA_DEBUG(4, "%s()\n", __func__);
1775
1776 poll_wait(file, sk_sleep(sk), wait);
1777 mask = 0;
1778
1779
1780 if (sk->sk_err)
1781 mask |= POLLERR;
1782 if (sk->sk_shutdown & RCV_SHUTDOWN) {
1783 IRDA_DEBUG(0, "%s(), POLLHUP\n", __func__);
1784 mask |= POLLHUP;
1785 }
1786
1787
1788 if (!skb_queue_empty(&sk->sk_receive_queue)) {
1789 IRDA_DEBUG(4, "Socket is readable\n");
1790 mask |= POLLIN | POLLRDNORM;
1791 }
1792
1793
1794 switch (sk->sk_type) {
1795 case SOCK_STREAM:
1796 if (sk->sk_state == TCP_CLOSE) {
1797 IRDA_DEBUG(0, "%s(), POLLHUP\n", __func__);
1798 mask |= POLLHUP;
1799 }
1800
1801 if (sk->sk_state == TCP_ESTABLISHED) {
1802 if ((self->tx_flow == FLOW_START) &&
1803 sock_writeable(sk))
1804 {
1805 mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
1806 }
1807 }
1808 break;
1809 case SOCK_SEQPACKET:
1810 if ((self->tx_flow == FLOW_START) &&
1811 sock_writeable(sk))
1812 {
1813 mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
1814 }
1815 break;
1816 case SOCK_DGRAM:
1817 if (sock_writeable(sk))
1818 mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
1819 break;
1820 default:
1821 break;
1822 }
1823
1824 return mask;
1825}
1826
1827
1828
1829
1830static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
1831{
1832 struct sock *sk = sock->sk;
1833 int err;
1834
1835 IRDA_DEBUG(4, "%s(), cmd=%#x\n", __func__, cmd);
1836
1837 err = -EINVAL;
1838 switch (cmd) {
1839 case TIOCOUTQ: {
1840 long amount;
1841
1842 amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
1843 if (amount < 0)
1844 amount = 0;
1845 err = put_user(amount, (unsigned int __user *)arg);
1846 break;
1847 }
1848
1849 case TIOCINQ: {
1850 struct sk_buff *skb;
1851 long amount = 0L;
1852
1853 if ((skb = skb_peek(&sk->sk_receive_queue)) != NULL)
1854 amount = skb->len;
1855 err = put_user(amount, (unsigned int __user *)arg);
1856 break;
1857 }
1858
1859 case SIOCGSTAMP:
1860 if (sk != NULL)
1861 err = sock_get_timestamp(sk, (struct timeval __user *)arg);
1862 break;
1863
1864 case SIOCGIFADDR:
1865 case SIOCSIFADDR:
1866 case SIOCGIFDSTADDR:
1867 case SIOCSIFDSTADDR:
1868 case SIOCGIFBRDADDR:
1869 case SIOCSIFBRDADDR:
1870 case SIOCGIFNETMASK:
1871 case SIOCSIFNETMASK:
1872 case SIOCGIFMETRIC:
1873 case SIOCSIFMETRIC:
1874 break;
1875 default:
1876 IRDA_DEBUG(1, "%s(), doing device ioctl!\n", __func__);
1877 err = -ENOIOCTLCMD;
1878 }
1879
1880 return err;
1881}
1882
1883#ifdef CONFIG_COMPAT
1884
1885
1886
1887static int irda_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
1888{
1889
1890
1891
1892 return -ENOIOCTLCMD;
1893}
1894#endif
1895
1896
1897
1898
1899
1900
1901
1902static int irda_setsockopt(struct socket *sock, int level, int optname,
1903 char __user *optval, unsigned int optlen)
1904{
1905 struct sock *sk = sock->sk;
1906 struct irda_sock *self = irda_sk(sk);
1907 struct irda_ias_set *ias_opt;
1908 struct ias_object *ias_obj;
1909 struct ias_attrib * ias_attr;
1910 int opt, free_ias = 0, err = 0;
1911
1912 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
1913
1914 if (level != SOL_IRLMP)
1915 return -ENOPROTOOPT;
1916
1917 lock_sock(sk);
1918
1919 switch (optname) {
1920 case IRLMP_IAS_SET:
1921
1922
1923
1924
1925
1926
1927
1928 if (optlen != sizeof(struct irda_ias_set)) {
1929 err = -EINVAL;
1930 goto out;
1931 }
1932
1933 ias_opt = kmalloc(sizeof(struct irda_ias_set), GFP_ATOMIC);
1934 if (ias_opt == NULL) {
1935 err = -ENOMEM;
1936 goto out;
1937 }
1938
1939
1940 if (copy_from_user(ias_opt, optval, optlen)) {
1941 kfree(ias_opt);
1942 err = -EFAULT;
1943 goto out;
1944 }
1945
1946
1947
1948
1949
1950 if(ias_opt->irda_class_name[0] == '\0') {
1951 if(self->ias_obj == NULL) {
1952 kfree(ias_opt);
1953 err = -EINVAL;
1954 goto out;
1955 }
1956 ias_obj = self->ias_obj;
1957 } else
1958 ias_obj = irias_find_object(ias_opt->irda_class_name);
1959
1960
1961
1962
1963 if((!capable(CAP_NET_ADMIN)) &&
1964 ((ias_obj == NULL) || (ias_obj != self->ias_obj))) {
1965 kfree(ias_opt);
1966 err = -EPERM;
1967 goto out;
1968 }
1969
1970
1971 if(ias_obj == (struct ias_object *) NULL) {
1972
1973 ias_obj = irias_new_object(ias_opt->irda_class_name,
1974 jiffies);
1975 if (ias_obj == NULL) {
1976 kfree(ias_opt);
1977 err = -ENOMEM;
1978 goto out;
1979 }
1980 free_ias = 1;
1981 }
1982
1983
1984 if(irias_find_attrib(ias_obj, ias_opt->irda_attrib_name)) {
1985 kfree(ias_opt);
1986 if (free_ias) {
1987 kfree(ias_obj->name);
1988 kfree(ias_obj);
1989 }
1990 err = -EINVAL;
1991 goto out;
1992 }
1993
1994
1995 switch(ias_opt->irda_attrib_type) {
1996 case IAS_INTEGER:
1997
1998 irias_add_integer_attrib(
1999 ias_obj,
2000 ias_opt->irda_attrib_name,
2001 ias_opt->attribute.irda_attrib_int,
2002 IAS_USER_ATTR);
2003 break;
2004 case IAS_OCT_SEQ:
2005
2006 if(ias_opt->attribute.irda_attrib_octet_seq.len >
2007 IAS_MAX_OCTET_STRING) {
2008 kfree(ias_opt);
2009 if (free_ias) {
2010 kfree(ias_obj->name);
2011 kfree(ias_obj);
2012 }
2013
2014 err = -EINVAL;
2015 goto out;
2016 }
2017
2018 irias_add_octseq_attrib(
2019 ias_obj,
2020 ias_opt->irda_attrib_name,
2021 ias_opt->attribute.irda_attrib_octet_seq.octet_seq,
2022 ias_opt->attribute.irda_attrib_octet_seq.len,
2023 IAS_USER_ATTR);
2024 break;
2025 case IAS_STRING:
2026
2027
2028
2029
2030
2031
2032
2033 ias_opt->attribute.irda_attrib_string.string[ias_opt->attribute.irda_attrib_string.len] = '\0';
2034
2035 irias_add_string_attrib(
2036 ias_obj,
2037 ias_opt->irda_attrib_name,
2038 ias_opt->attribute.irda_attrib_string.string,
2039 IAS_USER_ATTR);
2040 break;
2041 default :
2042 kfree(ias_opt);
2043 if (free_ias) {
2044 kfree(ias_obj->name);
2045 kfree(ias_obj);
2046 }
2047 err = -EINVAL;
2048 goto out;
2049 }
2050 irias_insert_object(ias_obj);
2051 kfree(ias_opt);
2052 break;
2053 case IRLMP_IAS_DEL:
2054
2055
2056
2057
2058
2059 if (optlen != sizeof(struct irda_ias_set)) {
2060 err = -EINVAL;
2061 goto out;
2062 }
2063
2064 ias_opt = kmalloc(sizeof(struct irda_ias_set), GFP_ATOMIC);
2065 if (ias_opt == NULL) {
2066 err = -ENOMEM;
2067 goto out;
2068 }
2069
2070
2071 if (copy_from_user(ias_opt, optval, optlen)) {
2072 kfree(ias_opt);
2073 err = -EFAULT;
2074 goto out;
2075 }
2076
2077
2078
2079
2080
2081 if(ias_opt->irda_class_name[0] == '\0')
2082 ias_obj = self->ias_obj;
2083 else
2084 ias_obj = irias_find_object(ias_opt->irda_class_name);
2085 if(ias_obj == (struct ias_object *) NULL) {
2086 kfree(ias_opt);
2087 err = -EINVAL;
2088 goto out;
2089 }
2090
2091
2092
2093
2094 if((!capable(CAP_NET_ADMIN)) &&
2095 ((ias_obj == NULL) || (ias_obj != self->ias_obj))) {
2096 kfree(ias_opt);
2097 err = -EPERM;
2098 goto out;
2099 }
2100
2101
2102 ias_attr = irias_find_attrib(ias_obj,
2103 ias_opt->irda_attrib_name);
2104 if(ias_attr == (struct ias_attrib *) NULL) {
2105 kfree(ias_opt);
2106 err = -EINVAL;
2107 goto out;
2108 }
2109
2110
2111 if(ias_attr->value->owner != IAS_USER_ATTR) {
2112 IRDA_DEBUG(1, "%s(), attempting to delete a kernel attribute\n", __func__);
2113 kfree(ias_opt);
2114 err = -EPERM;
2115 goto out;
2116 }
2117
2118
2119 irias_delete_attrib(ias_obj, ias_attr, 1);
2120 kfree(ias_opt);
2121 break;
2122 case IRLMP_MAX_SDU_SIZE:
2123 if (optlen < sizeof(int)) {
2124 err = -EINVAL;
2125 goto out;
2126 }
2127
2128 if (get_user(opt, (int __user *)optval)) {
2129 err = -EFAULT;
2130 goto out;
2131 }
2132
2133
2134 if (sk->sk_type != SOCK_SEQPACKET) {
2135 IRDA_DEBUG(2, "%s(), setting max_sdu_size = %d\n",
2136 __func__, opt);
2137 self->max_sdu_size_rx = opt;
2138 } else {
2139 IRDA_WARNING("%s: not allowed to set MAXSDUSIZE for this socket type!\n",
2140 __func__);
2141 err = -ENOPROTOOPT;
2142 goto out;
2143 }
2144 break;
2145 case IRLMP_HINTS_SET:
2146 if (optlen < sizeof(int)) {
2147 err = -EINVAL;
2148 goto out;
2149 }
2150
2151
2152 if (get_user(opt, (int __user *)optval)) {
2153 err = -EFAULT;
2154 goto out;
2155 }
2156
2157
2158 if (self->skey)
2159 irlmp_unregister_service(self->skey);
2160
2161 self->skey = irlmp_register_service((__u16) opt);
2162 break;
2163 case IRLMP_HINT_MASK_SET:
2164
2165
2166
2167
2168
2169 if (optlen < sizeof(int)) {
2170 err = -EINVAL;
2171 goto out;
2172 }
2173
2174
2175 if (get_user(opt, (int __user *)optval)) {
2176 err = -EFAULT;
2177 goto out;
2178 }
2179
2180
2181 self->mask.word = (__u16) opt;
2182
2183 self->mask.word &= 0x7f7f;
2184
2185 if(!self->mask.word)
2186 self->mask.word = 0xFFFF;
2187
2188 break;
2189 default:
2190 err = -ENOPROTOOPT;
2191 break;
2192 }
2193
2194out:
2195 release_sock(sk);
2196
2197 return err;
2198}
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212static int irda_extract_ias_value(struct irda_ias_set *ias_opt,
2213 struct ias_value *ias_value)
2214{
2215
2216 switch (ias_value->type) {
2217 case IAS_INTEGER:
2218
2219 ias_opt->attribute.irda_attrib_int = ias_value->t.integer;
2220 break;
2221 case IAS_OCT_SEQ:
2222
2223 ias_opt->attribute.irda_attrib_octet_seq.len = ias_value->len;
2224
2225 memcpy(ias_opt->attribute.irda_attrib_octet_seq.octet_seq,
2226 ias_value->t.oct_seq, ias_value->len);
2227 break;
2228 case IAS_STRING:
2229
2230 ias_opt->attribute.irda_attrib_string.len = ias_value->len;
2231 ias_opt->attribute.irda_attrib_string.charset = ias_value->charset;
2232
2233 memcpy(ias_opt->attribute.irda_attrib_string.string,
2234 ias_value->t.string, ias_value->len);
2235
2236 ias_opt->attribute.irda_attrib_string.string[ias_value->len] = '\0';
2237 break;
2238 case IAS_MISSING:
2239 default :
2240 return -EINVAL;
2241 }
2242
2243
2244 ias_opt->irda_attrib_type = ias_value->type;
2245
2246 return 0;
2247}
2248
2249
2250
2251
2252static int irda_getsockopt(struct socket *sock, int level, int optname,
2253 char __user *optval, int __user *optlen)
2254{
2255 struct sock *sk = sock->sk;
2256 struct irda_sock *self = irda_sk(sk);
2257 struct irda_device_list list;
2258 struct irda_device_info *discoveries;
2259 struct irda_ias_set * ias_opt;
2260 struct ias_object * ias_obj;
2261 struct ias_attrib * ias_attr;
2262 int daddr = DEV_ADDR_ANY;
2263 int val = 0;
2264 int len = 0;
2265 int err = 0;
2266 int offset, total;
2267
2268 IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
2269
2270 if (level != SOL_IRLMP)
2271 return -ENOPROTOOPT;
2272
2273 if (get_user(len, optlen))
2274 return -EFAULT;
2275
2276 if(len < 0)
2277 return -EINVAL;
2278
2279 lock_sock(sk);
2280
2281 switch (optname) {
2282 case IRLMP_ENUMDEVICES:
2283
2284
2285 offset = sizeof(struct irda_device_list) -
2286 sizeof(struct irda_device_info);
2287
2288 if (len < offset) {
2289 err = -EINVAL;
2290 goto out;
2291 }
2292
2293
2294 discoveries = irlmp_get_discoveries(&list.len, self->mask.word,
2295 self->nslots);
2296
2297 if (discoveries == NULL) {
2298 err = -EAGAIN;
2299 goto out;
2300 }
2301
2302
2303 if (copy_to_user(optval, &list, offset))
2304 err = -EFAULT;
2305
2306
2307 if (list.len > 2048) {
2308 err = -EINVAL;
2309 goto bed;
2310 }
2311 total = offset + (list.len * sizeof(struct irda_device_info));
2312 if (total > len)
2313 total = len;
2314 if (copy_to_user(optval+offset, discoveries, total - offset))
2315 err = -EFAULT;
2316
2317
2318 if (put_user(total, optlen))
2319 err = -EFAULT;
2320bed:
2321
2322 kfree(discoveries);
2323 break;
2324 case IRLMP_MAX_SDU_SIZE:
2325 val = self->max_data_size;
2326 len = sizeof(int);
2327 if (put_user(len, optlen)) {
2328 err = -EFAULT;
2329 goto out;
2330 }
2331
2332 if (copy_to_user(optval, &val, len)) {
2333 err = -EFAULT;
2334 goto out;
2335 }
2336
2337 break;
2338 case IRLMP_IAS_GET:
2339
2340
2341
2342
2343
2344 if (len != sizeof(struct irda_ias_set)) {
2345 err = -EINVAL;
2346 goto out;
2347 }
2348
2349 ias_opt = kmalloc(sizeof(struct irda_ias_set), GFP_ATOMIC);
2350 if (ias_opt == NULL) {
2351 err = -ENOMEM;
2352 goto out;
2353 }
2354
2355
2356 if (copy_from_user(ias_opt, optval, len)) {
2357 kfree(ias_opt);
2358 err = -EFAULT;
2359 goto out;
2360 }
2361
2362
2363
2364
2365
2366 if(ias_opt->irda_class_name[0] == '\0')
2367 ias_obj = self->ias_obj;
2368 else
2369 ias_obj = irias_find_object(ias_opt->irda_class_name);
2370 if(ias_obj == (struct ias_object *) NULL) {
2371 kfree(ias_opt);
2372 err = -EINVAL;
2373 goto out;
2374 }
2375
2376
2377 ias_attr = irias_find_attrib(ias_obj,
2378 ias_opt->irda_attrib_name);
2379 if(ias_attr == (struct ias_attrib *) NULL) {
2380 kfree(ias_opt);
2381 err = -EINVAL;
2382 goto out;
2383 }
2384
2385
2386 err = irda_extract_ias_value(ias_opt, ias_attr->value);
2387 if(err) {
2388 kfree(ias_opt);
2389 goto out;
2390 }
2391
2392
2393 if (copy_to_user(optval, ias_opt,
2394 sizeof(struct irda_ias_set))) {
2395 kfree(ias_opt);
2396 err = -EFAULT;
2397 goto out;
2398 }
2399
2400 kfree(ias_opt);
2401 break;
2402 case IRLMP_IAS_QUERY:
2403
2404
2405
2406
2407
2408 if (len != sizeof(struct irda_ias_set)) {
2409 err = -EINVAL;
2410 goto out;
2411 }
2412
2413 ias_opt = kmalloc(sizeof(struct irda_ias_set), GFP_ATOMIC);
2414 if (ias_opt == NULL) {
2415 err = -ENOMEM;
2416 goto out;
2417 }
2418
2419
2420 if (copy_from_user(ias_opt, optval, len)) {
2421 kfree(ias_opt);
2422 err = -EFAULT;
2423 goto out;
2424 }
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435 if(self->daddr != DEV_ADDR_ANY) {
2436
2437 daddr = self->daddr;
2438 } else {
2439
2440
2441 daddr = ias_opt->daddr;
2442 if((!daddr) || (daddr == DEV_ADDR_ANY)) {
2443 kfree(ias_opt);
2444 err = -EINVAL;
2445 goto out;
2446 }
2447 }
2448
2449
2450 if (self->iriap) {
2451 IRDA_WARNING("%s: busy with a previous query\n",
2452 __func__);
2453 kfree(ias_opt);
2454 err = -EBUSY;
2455 goto out;
2456 }
2457
2458 self->iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self,
2459 irda_getvalue_confirm);
2460
2461 if (self->iriap == NULL) {
2462 kfree(ias_opt);
2463 err = -ENOMEM;
2464 goto out;
2465 }
2466
2467
2468 self->errno = -EHOSTUNREACH;
2469
2470
2471 iriap_getvaluebyclass_request(self->iriap,
2472 self->saddr, daddr,
2473 ias_opt->irda_class_name,
2474 ias_opt->irda_attrib_name);
2475
2476
2477 if (wait_event_interruptible(self->query_wait,
2478 (self->iriap == NULL))) {
2479
2480
2481 kfree(ias_opt);
2482
2483 err = -EHOSTUNREACH;
2484 goto out;
2485 }
2486
2487
2488 if (self->errno)
2489 {
2490 kfree(ias_opt);
2491
2492 if((self->errno == IAS_CLASS_UNKNOWN) ||
2493 (self->errno == IAS_ATTRIB_UNKNOWN))
2494 err = -EADDRNOTAVAIL;
2495 else
2496 err = -EHOSTUNREACH;
2497
2498 goto out;
2499 }
2500
2501
2502 err = irda_extract_ias_value(ias_opt, self->ias_result);
2503 if (self->ias_result)
2504 irias_delete_value(self->ias_result);
2505 if (err) {
2506 kfree(ias_opt);
2507 goto out;
2508 }
2509
2510
2511 if (copy_to_user(optval, ias_opt,
2512 sizeof(struct irda_ias_set))) {
2513 kfree(ias_opt);
2514 err = -EFAULT;
2515 goto out;
2516 }
2517
2518 kfree(ias_opt);
2519 break;
2520 case IRLMP_WAITDEVICE:
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536 if (len != sizeof(int)) {
2537 err = -EINVAL;
2538 goto out;
2539 }
2540
2541 if (get_user(val, (int __user *)optval)) {
2542 err = -EFAULT;
2543 goto out;
2544 }
2545
2546
2547 irlmp_update_client(self->ckey, self->mask.word,
2548 irda_selective_discovery_indication,
2549 NULL, (void *) self);
2550
2551
2552 irlmp_discovery_request(self->nslots);
2553
2554
2555 if (!self->cachedaddr) {
2556 IRDA_DEBUG(1, "%s(), nothing discovered yet, going to sleep...\n", __func__);
2557
2558
2559 self->errno = 0;
2560 setup_timer(&self->watchdog, irda_discovery_timeout,
2561 (unsigned long)self);
2562 mod_timer(&self->watchdog,
2563 jiffies + msecs_to_jiffies(val));
2564
2565
2566 __wait_event_interruptible(self->query_wait,
2567 (self->cachedaddr != 0 || self->errno == -ETIME),
2568 err);
2569
2570
2571 del_timer(&(self->watchdog));
2572
2573 IRDA_DEBUG(1, "%s(), ...waking up !\n", __func__);
2574
2575 if (err != 0)
2576 goto out;
2577 }
2578 else
2579 IRDA_DEBUG(1, "%s(), found immediately !\n",
2580 __func__);
2581
2582
2583 irlmp_update_client(self->ckey, self->mask.word,
2584 NULL, NULL, NULL);
2585
2586
2587 if (!self->cachedaddr) {
2588 err = -EAGAIN;
2589 goto out;
2590 }
2591 daddr = self->cachedaddr;
2592
2593 self->cachedaddr = 0;
2594
2595
2596
2597
2598
2599
2600
2601 if (put_user(daddr, (int __user *)optval)) {
2602 err = -EFAULT;
2603 goto out;
2604 }
2605
2606 break;
2607 default:
2608 err = -ENOPROTOOPT;
2609 }
2610
2611out:
2612
2613 release_sock(sk);
2614
2615 return err;
2616}
2617
2618static const struct net_proto_family irda_family_ops = {
2619 .family = PF_IRDA,
2620 .create = irda_create,
2621 .owner = THIS_MODULE,
2622};
2623
2624static const struct proto_ops irda_stream_ops = {
2625 .family = PF_IRDA,
2626 .owner = THIS_MODULE,
2627 .release = irda_release,
2628 .bind = irda_bind,
2629 .connect = irda_connect,
2630 .socketpair = sock_no_socketpair,
2631 .accept = irda_accept,
2632 .getname = irda_getname,
2633 .poll = irda_poll,
2634 .ioctl = irda_ioctl,
2635#ifdef CONFIG_COMPAT
2636 .compat_ioctl = irda_compat_ioctl,
2637#endif
2638 .listen = irda_listen,
2639 .shutdown = irda_shutdown,
2640 .setsockopt = irda_setsockopt,
2641 .getsockopt = irda_getsockopt,
2642 .sendmsg = irda_sendmsg,
2643 .recvmsg = irda_recvmsg_stream,
2644 .mmap = sock_no_mmap,
2645 .sendpage = sock_no_sendpage,
2646};
2647
2648static const struct proto_ops irda_seqpacket_ops = {
2649 .family = PF_IRDA,
2650 .owner = THIS_MODULE,
2651 .release = irda_release,
2652 .bind = irda_bind,
2653 .connect = irda_connect,
2654 .socketpair = sock_no_socketpair,
2655 .accept = irda_accept,
2656 .getname = irda_getname,
2657 .poll = datagram_poll,
2658 .ioctl = irda_ioctl,
2659#ifdef CONFIG_COMPAT
2660 .compat_ioctl = irda_compat_ioctl,
2661#endif
2662 .listen = irda_listen,
2663 .shutdown = irda_shutdown,
2664 .setsockopt = irda_setsockopt,
2665 .getsockopt = irda_getsockopt,
2666 .sendmsg = irda_sendmsg,
2667 .recvmsg = irda_recvmsg_dgram,
2668 .mmap = sock_no_mmap,
2669 .sendpage = sock_no_sendpage,
2670};
2671
2672static const struct proto_ops irda_dgram_ops = {
2673 .family = PF_IRDA,
2674 .owner = THIS_MODULE,
2675 .release = irda_release,
2676 .bind = irda_bind,
2677 .connect = irda_connect,
2678 .socketpair = sock_no_socketpair,
2679 .accept = irda_accept,
2680 .getname = irda_getname,
2681 .poll = datagram_poll,
2682 .ioctl = irda_ioctl,
2683#ifdef CONFIG_COMPAT
2684 .compat_ioctl = irda_compat_ioctl,
2685#endif
2686 .listen = irda_listen,
2687 .shutdown = irda_shutdown,
2688 .setsockopt = irda_setsockopt,
2689 .getsockopt = irda_getsockopt,
2690 .sendmsg = irda_sendmsg_dgram,
2691 .recvmsg = irda_recvmsg_dgram,
2692 .mmap = sock_no_mmap,
2693 .sendpage = sock_no_sendpage,
2694};
2695
2696#ifdef CONFIG_IRDA_ULTRA
2697static const struct proto_ops irda_ultra_ops = {
2698 .family = PF_IRDA,
2699 .owner = THIS_MODULE,
2700 .release = irda_release,
2701 .bind = irda_bind,
2702 .connect = sock_no_connect,
2703 .socketpair = sock_no_socketpair,
2704 .accept = sock_no_accept,
2705 .getname = irda_getname,
2706 .poll = datagram_poll,
2707 .ioctl = irda_ioctl,
2708#ifdef CONFIG_COMPAT
2709 .compat_ioctl = irda_compat_ioctl,
2710#endif
2711 .listen = sock_no_listen,
2712 .shutdown = irda_shutdown,
2713 .setsockopt = irda_setsockopt,
2714 .getsockopt = irda_getsockopt,
2715 .sendmsg = irda_sendmsg_ultra,
2716 .recvmsg = irda_recvmsg_dgram,
2717 .mmap = sock_no_mmap,
2718 .sendpage = sock_no_sendpage,
2719};
2720#endif
2721
2722
2723
2724
2725
2726
2727
2728int __init irsock_init(void)
2729{
2730 int rc = proto_register(&irda_proto, 0);
2731
2732 if (rc == 0)
2733 rc = sock_register(&irda_family_ops);
2734
2735 return rc;
2736}
2737
2738
2739
2740
2741
2742
2743
2744void irsock_cleanup(void)
2745{
2746 sock_unregister(PF_IRDA);
2747 proto_unregister(&irda_proto);
2748}
2749