1 /*********************************************************************
5 * Description: IrDA sockets implementation
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun May 31 10:12:43 1998
9 * Modified at: Sat Dec 25 21:10:23 1999
10 * Modified by: Dag Brattli <dag@brattli.net>
11 * Sources: af_netroom.c, af_ax25.c, af_rose.c, af_x25.c etc.
13 * Copyright (c) 1999 Dag Brattli <dagb@cs.uit.no>
14 * Copyright (c) 1999-2003 Jean Tourrilhes <jt@hpl.hp.com>
15 * All Rights Reserved.
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 * Linux-IrDA now supports four different types of IrDA sockets:
34 * o SOCK_STREAM: TinyTP connections with SAR disabled. The
35 * max SDU size is 0 for conn. of this type
36 * o SOCK_SEQPACKET: TinyTP connections with SAR enabled. TTP may
37 * fragment the messages, but will preserve
38 * the message boundaries
39 * o SOCK_DGRAM: IRDAPROTO_UNITDATA: TinyTP connections with Unitdata
40 * (unreliable) transfers
41 * IRDAPROTO_ULTRA: Connectionless and unreliable data
43 ********************************************************************/
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>
56 #include <asm/ioctls.h> /* TIOCOUTQ, TIOCINQ */
57 #include <asm/uaccess.h>
60 #include <net/tcp_states.h>
62 #include <net/irda/af_irda.h>
64 static int irda_create(struct net
*net
, struct socket
*sock
, int protocol
, int kern
);
66 static const struct proto_ops irda_stream_ops
;
67 static const struct proto_ops irda_seqpacket_ops
;
68 static const struct proto_ops irda_dgram_ops
;
70 #ifdef CONFIG_IRDA_ULTRA
71 static const struct proto_ops irda_ultra_ops
;
72 #define ULTRA_MAX_DATA 382
73 #endif /* CONFIG_IRDA_ULTRA */
75 #define IRDA_MAX_HEADER (TTP_MAX_HEADER)
78 * Function irda_data_indication (instance, sap, skb)
80 * Received some data from TinyTP. Just queue it on the receive queue
83 static int irda_data_indication(void *instance
, void *sap
, struct sk_buff
*skb
)
85 struct irda_sock
*self
;
89 IRDA_DEBUG(3, "%s()\n", __func__
);
94 err
= sock_queue_rcv_skb(sk
, skb
);
96 IRDA_DEBUG(1, "%s(), error: no more mem!\n", __func__
);
97 self
->rx_flow
= FLOW_STOP
;
99 /* When we return error, TTP will need to requeue the skb */
107 * Function irda_disconnect_indication (instance, sap, reason, skb)
109 * Connection has been closed. Check reason to find out why
112 static void irda_disconnect_indication(void *instance
, void *sap
,
113 LM_REASON reason
, struct sk_buff
*skb
)
115 struct irda_sock
*self
;
120 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
122 /* Don't care about it, but let's not leak it */
128 IRDA_DEBUG(0, "%s(%p) : BUG : sk is NULL\n",
133 /* Prevent race conditions with irda_release() and irda_shutdown() */
135 if (!sock_flag(sk
, SOCK_DEAD
) && sk
->sk_state
!= TCP_CLOSE
) {
136 sk
->sk_state
= TCP_CLOSE
;
137 sk
->sk_shutdown
|= SEND_SHUTDOWN
;
139 sk
->sk_state_change(sk
);
142 * If we leave it open, IrLMP put it back into the list of
143 * unconnected LSAPs. The problem is that any incoming request
144 * can then be matched to this socket (and it will be, because
145 * it is at the head of the list). This would prevent any
146 * listening socket waiting on the same TSAP to get those
147 * requests. Some apps forget to close sockets, or hang to it
148 * a bit too long, so we may stay in this dead state long
149 * enough to be noticed...
150 * Note : all socket function do check sk->sk_state, so we are
155 irttp_close_tsap(self
->tsap
);
161 /* Note : once we are there, there is not much you want to do
162 * with the socket anymore, apart from closing it.
163 * For example, bind() and connect() won't reset sk->sk_err,
164 * sk->sk_shutdown and sk->sk_flags to valid values...
170 * Function irda_connect_confirm (instance, sap, qos, max_sdu_size, skb)
172 * Connections has been confirmed by the remote device
175 static void irda_connect_confirm(void *instance
, void *sap
,
176 struct qos_info
*qos
,
177 __u32 max_sdu_size
, __u8 max_header_size
,
180 struct irda_sock
*self
;
185 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
194 // Should be ??? skb_queue_tail(&sk->sk_receive_queue, skb);
196 /* How much header space do we need to reserve */
197 self
->max_header_size
= max_header_size
;
199 /* IrTTP max SDU size in transmit direction */
200 self
->max_sdu_size_tx
= max_sdu_size
;
202 /* Find out what the largest chunk of data that we can transmit is */
203 switch (sk
->sk_type
) {
205 if (max_sdu_size
!= 0) {
206 IRDA_ERROR("%s: max_sdu_size must be 0\n",
210 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
213 if (max_sdu_size
== 0) {
214 IRDA_ERROR("%s: max_sdu_size cannot be 0\n",
218 self
->max_data_size
= max_sdu_size
;
221 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
224 IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __func__
,
225 self
->max_data_size
);
227 memcpy(&self
->qos_tx
, qos
, sizeof(struct qos_info
));
229 /* We are now connected! */
230 sk
->sk_state
= TCP_ESTABLISHED
;
231 sk
->sk_state_change(sk
);
235 * Function irda_connect_indication(instance, sap, qos, max_sdu_size, userdata)
237 * Incoming connection
240 static 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
)
244 struct irda_sock
*self
;
249 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
257 /* How much header space do we need to reserve */
258 self
->max_header_size
= max_header_size
;
260 /* IrTTP max SDU size in transmit direction */
261 self
->max_sdu_size_tx
= max_sdu_size
;
263 /* Find out what the largest chunk of data that we can transmit is */
264 switch (sk
->sk_type
) {
266 if (max_sdu_size
!= 0) {
267 IRDA_ERROR("%s: max_sdu_size must be 0\n",
272 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
275 if (max_sdu_size
== 0) {
276 IRDA_ERROR("%s: max_sdu_size cannot be 0\n",
281 self
->max_data_size
= max_sdu_size
;
284 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
287 IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __func__
,
288 self
->max_data_size
);
290 memcpy(&self
->qos_tx
, qos
, sizeof(struct qos_info
));
292 skb_queue_tail(&sk
->sk_receive_queue
, skb
);
293 sk
->sk_state_change(sk
);
297 * Function irda_connect_response (handle)
299 * Accept incoming connection
302 static void irda_connect_response(struct irda_sock
*self
)
306 IRDA_DEBUG(2, "%s()\n", __func__
);
308 skb
= alloc_skb(TTP_MAX_HEADER
+ TTP_SAR_HEADER
,
311 IRDA_DEBUG(0, "%s() Unable to allocate sk_buff!\n",
316 /* Reserve space for MUX_CONTROL and LAP header */
317 skb_reserve(skb
, IRDA_MAX_HEADER
);
319 irttp_connect_response(self
->tsap
, self
->max_sdu_size_rx
, skb
);
323 * Function irda_flow_indication (instance, sap, flow)
325 * Used by TinyTP to tell us if it can accept more data or not
328 static void irda_flow_indication(void *instance
, void *sap
, LOCAL_FLOW flow
)
330 struct irda_sock
*self
;
333 IRDA_DEBUG(2, "%s()\n", __func__
);
341 IRDA_DEBUG(1, "%s(), IrTTP wants us to slow down\n",
343 self
->tx_flow
= flow
;
346 self
->tx_flow
= flow
;
347 IRDA_DEBUG(1, "%s(), IrTTP wants us to start again\n",
349 wake_up_interruptible(sk_sleep(sk
));
352 IRDA_DEBUG(0, "%s(), Unknown flow command!\n", __func__
);
353 /* Unknown flow command, better stop */
354 self
->tx_flow
= flow
;
360 * Function irda_getvalue_confirm (obj_id, value, priv)
362 * Got answer from remote LM-IAS, just pass object to requester...
364 * Note : duplicate from above, but we need our own version that
365 * doesn't touch the dtsap_sel and save the full value structure...
367 static void irda_getvalue_confirm(int result
, __u16 obj_id
,
368 struct ias_value
*value
, void *priv
)
370 struct irda_sock
*self
;
374 IRDA_WARNING("%s: lost myself!\n", __func__
);
378 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
380 /* We probably don't need to make any more queries */
381 iriap_close(self
->iriap
);
384 /* Check if request succeeded */
385 if (result
!= IAS_SUCCESS
) {
386 IRDA_DEBUG(1, "%s(), IAS query failed! (%d)\n", __func__
,
389 self
->errno
= result
; /* We really need it later */
391 /* Wake up any processes waiting for result */
392 wake_up_interruptible(&self
->query_wait
);
397 /* Pass the object to the caller (so the caller must delete it) */
398 self
->ias_result
= value
;
401 /* Wake up any processes waiting for result */
402 wake_up_interruptible(&self
->query_wait
);
406 * Function irda_selective_discovery_indication (discovery)
408 * Got a selective discovery indication from IrLMP.
410 * IrLMP is telling us that this node is new and matching our hint bit
411 * filter. Wake up any process waiting for answer...
413 static void irda_selective_discovery_indication(discinfo_t
*discovery
,
417 struct irda_sock
*self
;
419 IRDA_DEBUG(2, "%s()\n", __func__
);
423 IRDA_WARNING("%s: lost myself!\n", __func__
);
427 /* Pass parameter to the caller */
428 self
->cachedaddr
= discovery
->daddr
;
430 /* Wake up process if its waiting for device to be discovered */
431 wake_up_interruptible(&self
->query_wait
);
435 * Function irda_discovery_timeout (priv)
437 * Timeout in the selective discovery process
439 * We were waiting for a node to be discovered, but nothing has come up
440 * so far. Wake up the user and tell him that we failed...
442 static void irda_discovery_timeout(u_long priv
)
444 struct irda_sock
*self
;
446 IRDA_DEBUG(2, "%s()\n", __func__
);
448 self
= (struct irda_sock
*) priv
;
449 BUG_ON(self
== NULL
);
451 /* Nothing for the caller */
452 self
->cachelog
= NULL
;
453 self
->cachedaddr
= 0;
454 self
->errno
= -ETIME
;
456 /* Wake up process if its still waiting... */
457 wake_up_interruptible(&self
->query_wait
);
461 * Function irda_open_tsap (self)
463 * Open local Transport Service Access Point (TSAP)
466 static int irda_open_tsap(struct irda_sock
*self
, __u8 tsap_sel
, char *name
)
471 IRDA_DEBUG(0, "%s: busy!\n", __func__
);
475 /* Initialize callbacks to be used by the IrDA stack */
476 irda_notify_init(¬ify
);
477 notify
.connect_confirm
= irda_connect_confirm
;
478 notify
.connect_indication
= irda_connect_indication
;
479 notify
.disconnect_indication
= irda_disconnect_indication
;
480 notify
.data_indication
= irda_data_indication
;
481 notify
.udata_indication
= irda_data_indication
;
482 notify
.flow_indication
= irda_flow_indication
;
483 notify
.instance
= self
;
484 strncpy(notify
.name
, name
, NOTIFY_MAX_NAME
);
486 self
->tsap
= irttp_open_tsap(tsap_sel
, DEFAULT_INITIAL_CREDIT
,
488 if (self
->tsap
== NULL
) {
489 IRDA_DEBUG(0, "%s(), Unable to allocate TSAP!\n",
493 /* Remember which TSAP selector we actually got */
494 self
->stsap_sel
= self
->tsap
->stsap_sel
;
500 * Function irda_open_lsap (self)
502 * Open local Link Service Access Point (LSAP). Used for opening Ultra
505 #ifdef CONFIG_IRDA_ULTRA
506 static int irda_open_lsap(struct irda_sock
*self
, int pid
)
511 IRDA_WARNING("%s(), busy!\n", __func__
);
515 /* Initialize callbacks to be used by the IrDA stack */
516 irda_notify_init(¬ify
);
517 notify
.udata_indication
= irda_data_indication
;
518 notify
.instance
= self
;
519 strncpy(notify
.name
, "Ultra", NOTIFY_MAX_NAME
);
521 self
->lsap
= irlmp_open_lsap(LSAP_CONNLESS
, ¬ify
, pid
);
522 if (self
->lsap
== NULL
) {
523 IRDA_DEBUG( 0, "%s(), Unable to allocate LSAP!\n", __func__
);
529 #endif /* CONFIG_IRDA_ULTRA */
532 * Function irda_find_lsap_sel (self, name)
534 * Try to lookup LSAP selector in remote LM-IAS
536 * Basically, we start a IAP query, and then go to sleep. When the query
537 * return, irda_getvalue_confirm will wake us up, and we can examine the
538 * result of the query...
539 * Note that in some case, the query fail even before we go to sleep,
540 * creating some races...
542 static int irda_find_lsap_sel(struct irda_sock
*self
, char *name
)
544 IRDA_DEBUG(2, "%s(%p, %s)\n", __func__
, self
, name
);
547 IRDA_WARNING("%s(): busy with a previous query\n",
552 self
->iriap
= iriap_open(LSAP_ANY
, IAS_CLIENT
, self
,
553 irda_getvalue_confirm
);
554 if(self
->iriap
== NULL
)
557 /* Treat unexpected wakeup as disconnect */
558 self
->errno
= -EHOSTUNREACH
;
560 /* Query remote LM-IAS */
561 iriap_getvaluebyclass_request(self
->iriap
, self
->saddr
, self
->daddr
,
562 name
, "IrDA:TinyTP:LsapSel");
564 /* Wait for answer, if not yet finished (or failed) */
565 if (wait_event_interruptible(self
->query_wait
, (self
->iriap
==NULL
)))
566 /* Treat signals as disconnect */
567 return -EHOSTUNREACH
;
569 /* Check what happened */
572 /* Requested object/attribute doesn't exist */
573 if((self
->errno
== IAS_CLASS_UNKNOWN
) ||
574 (self
->errno
== IAS_ATTRIB_UNKNOWN
))
575 return -EADDRNOTAVAIL
;
577 return -EHOSTUNREACH
;
580 /* Get the remote TSAP selector */
581 switch (self
->ias_result
->type
) {
583 IRDA_DEBUG(4, "%s() int=%d\n",
584 __func__
, self
->ias_result
->t
.integer
);
586 if (self
->ias_result
->t
.integer
!= -1)
587 self
->dtsap_sel
= self
->ias_result
->t
.integer
;
593 IRDA_DEBUG(0, "%s(), bad type!\n", __func__
);
596 if (self
->ias_result
)
597 irias_delete_value(self
->ias_result
);
602 return -EADDRNOTAVAIL
;
606 * Function irda_discover_daddr_and_lsap_sel (self, name)
608 * This try to find a device with the requested service.
610 * It basically look into the discovery log. For each address in the list,
611 * it queries the LM-IAS of the device to find if this device offer
612 * the requested service.
613 * If there is more than one node supporting the service, we complain
614 * to the user (it should move devices around).
615 * The, we set both the destination address and the lsap selector to point
616 * on the service on the unique device we have found.
618 * Note : this function fails if there is more than one device in range,
619 * because IrLMP doesn't disconnect the LAP when the last LSAP is closed.
620 * Moreover, we would need to wait the LAP disconnection...
622 static int irda_discover_daddr_and_lsap_sel(struct irda_sock
*self
, char *name
)
624 discinfo_t
*discoveries
; /* Copy of the discovery log */
625 int number
; /* Number of nodes in the log */
627 int err
= -ENETUNREACH
;
628 __u32 daddr
= DEV_ADDR_ANY
; /* Address we found the service on */
629 __u8 dtsap_sel
= 0x0; /* TSAP associated with it */
631 IRDA_DEBUG(2, "%s(), name=%s\n", __func__
, name
);
633 /* Ask lmp for the current discovery log
634 * Note : we have to use irlmp_get_discoveries(), as opposed
635 * to play with the cachelog directly, because while we are
636 * making our ias query, le log might change... */
637 discoveries
= irlmp_get_discoveries(&number
, self
->mask
.word
,
639 /* Check if the we got some results */
640 if (discoveries
== NULL
)
641 return -ENETUNREACH
; /* No nodes discovered */
644 * Now, check all discovered devices (if any), and connect
645 * client only about the services that the client is
648 for(i
= 0; i
< number
; i
++) {
649 /* Try the address in the log */
650 self
->daddr
= discoveries
[i
].daddr
;
652 IRDA_DEBUG(1, "%s(), trying daddr = %08x\n",
653 __func__
, self
->daddr
);
655 /* Query remote LM-IAS for this service */
656 err
= irda_find_lsap_sel(self
, name
);
659 /* We found the requested service */
660 if(daddr
!= DEV_ADDR_ANY
) {
661 IRDA_DEBUG(1, "%s(), discovered service ''%s'' in two different devices !!!\n",
663 self
->daddr
= DEV_ADDR_ANY
;
667 /* First time we found that one, save it ! */
669 dtsap_sel
= self
->dtsap_sel
;
672 /* Requested service simply doesn't exist on this node */
675 /* Something bad did happen :-( */
676 IRDA_DEBUG(0, "%s(), unexpected IAS query failure\n", __func__
);
677 self
->daddr
= DEV_ADDR_ANY
;
679 return -EHOSTUNREACH
;
683 /* Cleanup our copy of the discovery log */
686 /* Check out what we found */
687 if(daddr
== DEV_ADDR_ANY
) {
688 IRDA_DEBUG(1, "%s(), cannot discover service ''%s'' in any device !!!\n",
690 self
->daddr
= DEV_ADDR_ANY
;
691 return -EADDRNOTAVAIL
;
694 /* Revert back to discovered device & service */
697 self
->dtsap_sel
= dtsap_sel
;
699 IRDA_DEBUG(1, "%s(), discovered requested service ''%s'' at address %08x\n",
700 __func__
, name
, self
->daddr
);
706 * Function irda_getname (sock, uaddr, uaddr_len, peer)
708 * Return the our own, or peers socket address (sockaddr_irda)
711 static int irda_getname(struct socket
*sock
, struct sockaddr
*uaddr
,
712 int *uaddr_len
, int peer
)
714 struct sockaddr_irda saddr
;
715 struct sock
*sk
= sock
->sk
;
716 struct irda_sock
*self
= irda_sk(sk
);
718 memset(&saddr
, 0, sizeof(saddr
));
720 if (sk
->sk_state
!= TCP_ESTABLISHED
)
723 saddr
.sir_family
= AF_IRDA
;
724 saddr
.sir_lsap_sel
= self
->dtsap_sel
;
725 saddr
.sir_addr
= self
->daddr
;
727 saddr
.sir_family
= AF_IRDA
;
728 saddr
.sir_lsap_sel
= self
->stsap_sel
;
729 saddr
.sir_addr
= self
->saddr
;
732 IRDA_DEBUG(1, "%s(), tsap_sel = %#x\n", __func__
, saddr
.sir_lsap_sel
);
733 IRDA_DEBUG(1, "%s(), addr = %08x\n", __func__
, saddr
.sir_addr
);
735 /* uaddr_len come to us uninitialised */
736 *uaddr_len
= sizeof (struct sockaddr_irda
);
737 memcpy(uaddr
, &saddr
, *uaddr_len
);
743 * Function irda_listen (sock, backlog)
745 * Just move to the listen state
748 static int irda_listen(struct socket
*sock
, int backlog
)
750 struct sock
*sk
= sock
->sk
;
751 int err
= -EOPNOTSUPP
;
753 IRDA_DEBUG(2, "%s()\n", __func__
);
757 if ((sk
->sk_type
!= SOCK_STREAM
) && (sk
->sk_type
!= SOCK_SEQPACKET
) &&
758 (sk
->sk_type
!= SOCK_DGRAM
))
761 if (sk
->sk_state
!= TCP_LISTEN
) {
762 sk
->sk_max_ack_backlog
= backlog
;
763 sk
->sk_state
= TCP_LISTEN
;
774 * Function irda_bind (sock, uaddr, addr_len)
776 * Used by servers to register their well known TSAP
779 static int irda_bind(struct socket
*sock
, struct sockaddr
*uaddr
, int addr_len
)
781 struct sock
*sk
= sock
->sk
;
782 struct sockaddr_irda
*addr
= (struct sockaddr_irda
*) uaddr
;
783 struct irda_sock
*self
= irda_sk(sk
);
786 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
788 if (addr_len
!= sizeof(struct sockaddr_irda
))
792 #ifdef CONFIG_IRDA_ULTRA
793 /* Special care for Ultra sockets */
794 if ((sk
->sk_type
== SOCK_DGRAM
) &&
795 (sk
->sk_protocol
== IRDAPROTO_ULTRA
)) {
796 self
->pid
= addr
->sir_lsap_sel
;
798 if (self
->pid
& 0x80) {
799 IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __func__
);
802 err
= irda_open_lsap(self
, self
->pid
);
806 /* Pretend we are connected */
807 sock
->state
= SS_CONNECTED
;
808 sk
->sk_state
= TCP_ESTABLISHED
;
813 #endif /* CONFIG_IRDA_ULTRA */
815 self
->ias_obj
= irias_new_object(addr
->sir_name
, jiffies
);
817 if (self
->ias_obj
== NULL
)
820 err
= irda_open_tsap(self
, addr
->sir_lsap_sel
, addr
->sir_name
);
822 irias_delete_object(self
->ias_obj
);
823 self
->ias_obj
= NULL
;
827 /* Register with LM-IAS */
828 irias_add_integer_attrib(self
->ias_obj
, "IrDA:TinyTP:LsapSel",
829 self
->stsap_sel
, IAS_KERNEL_ATTR
);
830 irias_insert_object(self
->ias_obj
);
839 * Function irda_accept (sock, newsock, flags)
841 * Wait for incoming connection
844 static int irda_accept(struct socket
*sock
, struct socket
*newsock
, int flags
)
846 struct sock
*sk
= sock
->sk
;
847 struct irda_sock
*new, *self
= irda_sk(sk
);
852 IRDA_DEBUG(2, "%s()\n", __func__
);
854 err
= irda_create(sock_net(sk
), newsock
, sk
->sk_protocol
, 0);
861 if (sock
->state
!= SS_UNCONNECTED
)
864 if ((sk
= sock
->sk
) == NULL
)
868 if ((sk
->sk_type
!= SOCK_STREAM
) && (sk
->sk_type
!= SOCK_SEQPACKET
) &&
869 (sk
->sk_type
!= SOCK_DGRAM
))
873 if (sk
->sk_state
!= TCP_LISTEN
)
877 * The read queue this time is holding sockets ready to use
878 * hooked into the SABM we saved
882 * We can perform the accept only if there is incoming data
883 * on the listening socket.
884 * So, we will block the caller until we receive any data.
885 * If the caller was waiting on select() or poll() before
886 * calling us, the data is waiting for us ;-)
890 skb
= skb_dequeue(&sk
->sk_receive_queue
);
894 /* Non blocking operation */
896 if (flags
& O_NONBLOCK
)
899 err
= wait_event_interruptible(*(sk_sleep(sk
)),
900 skb_peek(&sk
->sk_receive_queue
));
910 newsk
->sk_state
= TCP_ESTABLISHED
;
912 new = irda_sk(newsk
);
914 /* Now attach up the new socket */
915 new->tsap
= irttp_dup(self
->tsap
, new);
916 err
= -EPERM
; /* value does not seem to make sense. -arnd */
918 IRDA_DEBUG(0, "%s(), dup failed!\n", __func__
);
923 new->stsap_sel
= new->tsap
->stsap_sel
;
924 new->dtsap_sel
= new->tsap
->dtsap_sel
;
925 new->saddr
= irttp_get_saddr(new->tsap
);
926 new->daddr
= irttp_get_daddr(new->tsap
);
928 new->max_sdu_size_tx
= self
->max_sdu_size_tx
;
929 new->max_sdu_size_rx
= self
->max_sdu_size_rx
;
930 new->max_data_size
= self
->max_data_size
;
931 new->max_header_size
= self
->max_header_size
;
933 memcpy(&new->qos_tx
, &self
->qos_tx
, sizeof(struct qos_info
));
935 /* Clean up the original one to keep it in listen state */
936 irttp_listen(self
->tsap
);
939 sk
->sk_ack_backlog
--;
941 newsock
->state
= SS_CONNECTED
;
943 irda_connect_response(new);
951 * Function irda_connect (sock, uaddr, addr_len, flags)
953 * Connect to a IrDA device
955 * The main difference with a "standard" connect is that with IrDA we need
956 * to resolve the service name into a TSAP selector (in TCP, port number
957 * doesn't have to be resolved).
958 * Because of this service name resolution, we can offer "auto-connect",
959 * where we connect to a service without specifying a destination address.
961 * Note : by consulting "errno", the user space caller may learn the cause
962 * of the failure. Most of them are visible in the function, others may come
963 * from subroutines called and are listed here :
964 * o EBUSY : already processing a connect
965 * o EHOSTUNREACH : bad addr->sir_addr argument
966 * o EADDRNOTAVAIL : bad addr->sir_name argument
967 * o ENOTUNIQ : more than one node has addr->sir_name (auto-connect)
968 * o ENETUNREACH : no node found on the network (auto-connect)
970 static int irda_connect(struct socket
*sock
, struct sockaddr
*uaddr
,
971 int addr_len
, int flags
)
973 struct sock
*sk
= sock
->sk
;
974 struct sockaddr_irda
*addr
= (struct sockaddr_irda
*) uaddr
;
975 struct irda_sock
*self
= irda_sk(sk
);
978 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
981 /* Don't allow connect for Ultra sockets */
982 err
= -ESOCKTNOSUPPORT
;
983 if ((sk
->sk_type
== SOCK_DGRAM
) && (sk
->sk_protocol
== IRDAPROTO_ULTRA
))
986 if (sk
->sk_state
== TCP_ESTABLISHED
&& sock
->state
== SS_CONNECTING
) {
987 sock
->state
= SS_CONNECTED
;
989 goto out
; /* Connect completed during a ERESTARTSYS event */
992 if (sk
->sk_state
== TCP_CLOSE
&& sock
->state
== SS_CONNECTING
) {
993 sock
->state
= SS_UNCONNECTED
;
998 err
= -EISCONN
; /* No reconnect on a seqpacket socket */
999 if (sk
->sk_state
== TCP_ESTABLISHED
)
1002 sk
->sk_state
= TCP_CLOSE
;
1003 sock
->state
= SS_UNCONNECTED
;
1006 if (addr_len
!= sizeof(struct sockaddr_irda
))
1009 /* Check if user supplied any destination device address */
1010 if ((!addr
->sir_addr
) || (addr
->sir_addr
== DEV_ADDR_ANY
)) {
1011 /* Try to find one suitable */
1012 err
= irda_discover_daddr_and_lsap_sel(self
, addr
->sir_name
);
1014 IRDA_DEBUG(0, "%s(), auto-connect failed!\n", __func__
);
1018 /* Use the one provided by the user */
1019 self
->daddr
= addr
->sir_addr
;
1020 IRDA_DEBUG(1, "%s(), daddr = %08x\n", __func__
, self
->daddr
);
1022 /* If we don't have a valid service name, we assume the
1023 * user want to connect on a specific LSAP. Prevent
1024 * the use of invalid LSAPs (IrLMP 1.1 p10). Jean II */
1025 if((addr
->sir_name
[0] != '\0') ||
1026 (addr
->sir_lsap_sel
>= 0x70)) {
1027 /* Query remote LM-IAS using service name */
1028 err
= irda_find_lsap_sel(self
, addr
->sir_name
);
1030 IRDA_DEBUG(0, "%s(), connect failed!\n", __func__
);
1034 /* Directly connect to the remote LSAP
1035 * specified by the sir_lsap field.
1036 * Please use with caution, in IrDA LSAPs are
1037 * dynamic and there is no "well-known" LSAP. */
1038 self
->dtsap_sel
= addr
->sir_lsap_sel
;
1042 /* Check if we have opened a local TSAP */
1044 irda_open_tsap(self
, LSAP_ANY
, addr
->sir_name
);
1046 /* Move to connecting socket, start sending Connect Requests */
1047 sock
->state
= SS_CONNECTING
;
1048 sk
->sk_state
= TCP_SYN_SENT
;
1050 /* Connect to remote device */
1051 err
= irttp_connect_request(self
->tsap
, self
->dtsap_sel
,
1052 self
->saddr
, self
->daddr
, NULL
,
1053 self
->max_sdu_size_rx
, NULL
);
1055 IRDA_DEBUG(0, "%s(), connect failed!\n", __func__
);
1061 if (sk
->sk_state
!= TCP_ESTABLISHED
&& (flags
& O_NONBLOCK
))
1065 if (wait_event_interruptible(*(sk_sleep(sk
)),
1066 (sk
->sk_state
!= TCP_SYN_SENT
)))
1069 if (sk
->sk_state
!= TCP_ESTABLISHED
) {
1070 sock
->state
= SS_UNCONNECTED
;
1071 if (sk
->sk_prot
->disconnect(sk
, flags
))
1072 sock
->state
= SS_DISCONNECTING
;
1073 err
= sock_error(sk
);
1079 sock
->state
= SS_CONNECTED
;
1081 /* At this point, IrLMP has assigned our source address */
1082 self
->saddr
= irttp_get_saddr(self
->tsap
);
1089 static struct proto irda_proto
= {
1091 .owner
= THIS_MODULE
,
1092 .obj_size
= sizeof(struct irda_sock
),
1096 * Function irda_create (sock, protocol)
1098 * Create IrDA socket
1101 static int irda_create(struct net
*net
, struct socket
*sock
, int protocol
,
1105 struct irda_sock
*self
;
1107 IRDA_DEBUG(2, "%s()\n", __func__
);
1109 if (net
!= &init_net
)
1110 return -EAFNOSUPPORT
;
1112 /* Check for valid socket type */
1113 switch (sock
->type
) {
1114 case SOCK_STREAM
: /* For TTP connections with SAR disabled */
1115 case SOCK_SEQPACKET
: /* For TTP connections with SAR enabled */
1116 case SOCK_DGRAM
: /* For TTP Unitdata or LMP Ultra transfers */
1119 return -ESOCKTNOSUPPORT
;
1122 /* Allocate networking socket */
1123 sk
= sk_alloc(net
, PF_IRDA
, GFP_ATOMIC
, &irda_proto
);
1128 IRDA_DEBUG(2, "%s() : self is %p\n", __func__
, self
);
1130 init_waitqueue_head(&self
->query_wait
);
1132 switch (sock
->type
) {
1134 sock
->ops
= &irda_stream_ops
;
1135 self
->max_sdu_size_rx
= TTP_SAR_DISABLE
;
1137 case SOCK_SEQPACKET
:
1138 sock
->ops
= &irda_seqpacket_ops
;
1139 self
->max_sdu_size_rx
= TTP_SAR_UNBOUND
;
1143 #ifdef CONFIG_IRDA_ULTRA
1144 case IRDAPROTO_ULTRA
:
1145 sock
->ops
= &irda_ultra_ops
;
1146 /* Initialise now, because we may send on unbound
1147 * sockets. Jean II */
1148 self
->max_data_size
= ULTRA_MAX_DATA
- LMP_PID_HEADER
;
1149 self
->max_header_size
= IRDA_MAX_HEADER
+ LMP_PID_HEADER
;
1151 #endif /* CONFIG_IRDA_ULTRA */
1152 case IRDAPROTO_UNITDATA
:
1153 sock
->ops
= &irda_dgram_ops
;
1154 /* We let Unitdata conn. be like seqpack conn. */
1155 self
->max_sdu_size_rx
= TTP_SAR_UNBOUND
;
1159 return -ESOCKTNOSUPPORT
;
1164 return -ESOCKTNOSUPPORT
;
1167 /* Initialise networking socket struct */
1168 sock_init_data(sock
, sk
); /* Note : set sk->sk_refcnt to 1 */
1169 sk
->sk_family
= PF_IRDA
;
1170 sk
->sk_protocol
= protocol
;
1172 /* Register as a client with IrLMP */
1173 self
->ckey
= irlmp_register_client(0, NULL
, NULL
, NULL
);
1174 self
->mask
.word
= 0xffff;
1175 self
->rx_flow
= self
->tx_flow
= FLOW_START
;
1176 self
->nslots
= DISCOVERY_DEFAULT_SLOTS
;
1177 self
->daddr
= DEV_ADDR_ANY
; /* Until we get connected */
1178 self
->saddr
= 0x0; /* so IrLMP assign us any link */
1183 * Function irda_destroy_socket (self)
1188 static void irda_destroy_socket(struct irda_sock
*self
)
1190 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
1192 /* Unregister with IrLMP */
1193 irlmp_unregister_client(self
->ckey
);
1194 irlmp_unregister_service(self
->skey
);
1196 /* Unregister with LM-IAS */
1197 if (self
->ias_obj
) {
1198 irias_delete_object(self
->ias_obj
);
1199 self
->ias_obj
= NULL
;
1203 iriap_close(self
->iriap
);
1208 irttp_disconnect_request(self
->tsap
, NULL
, P_NORMAL
);
1209 irttp_close_tsap(self
->tsap
);
1212 #ifdef CONFIG_IRDA_ULTRA
1214 irlmp_close_lsap(self
->lsap
);
1217 #endif /* CONFIG_IRDA_ULTRA */
1221 * Function irda_release (sock)
1223 static int irda_release(struct socket
*sock
)
1225 struct sock
*sk
= sock
->sk
;
1227 IRDA_DEBUG(2, "%s()\n", __func__
);
1233 sk
->sk_state
= TCP_CLOSE
;
1234 sk
->sk_shutdown
|= SEND_SHUTDOWN
;
1235 sk
->sk_state_change(sk
);
1237 /* Destroy IrDA socket */
1238 irda_destroy_socket(irda_sk(sk
));
1244 /* Purge queues (see sock_init_data()) */
1245 skb_queue_purge(&sk
->sk_receive_queue
);
1247 /* Destroy networking socket if we are the last reference on it,
1248 * i.e. if(sk->sk_refcnt == 0) -> sk_free(sk) */
1251 /* Notes on socket locking and deallocation... - Jean II
1252 * In theory we should put pairs of sock_hold() / sock_put() to
1253 * prevent the socket to be destroyed whenever there is an
1254 * outstanding request or outstanding incoming packet or event.
1256 * 1) This may include IAS request, both in connect and getsockopt.
1257 * Unfortunately, the situation is a bit more messy than it looks,
1258 * because we close iriap and kfree(self) above.
1260 * 2) This may include selective discovery in getsockopt.
1261 * Same stuff as above, irlmp registration and self are gone.
1263 * Probably 1 and 2 may not matter, because it's all triggered
1264 * by a process and the socket layer already prevent the
1265 * socket to go away while a process is holding it, through
1266 * sockfd_put() and fput()...
1268 * 3) This may include deferred TSAP closure. In particular,
1269 * we may receive a late irda_disconnect_indication()
1270 * Fortunately, (tsap_cb *)->close_pend should protect us
1273 * I did some testing on SMP, and it looks solid. And the socket
1274 * memory leak is now gone... - Jean II
1281 * Function irda_sendmsg (iocb, sock, msg, len)
1283 * Send message down to TinyTP. This function is used for both STREAM and
1284 * SEQPACK services. This is possible since it forces the client to
1285 * fragment the message if necessary
1287 static int irda_sendmsg(struct kiocb
*iocb
, struct socket
*sock
,
1288 struct msghdr
*msg
, size_t len
)
1290 struct sock
*sk
= sock
->sk
;
1291 struct irda_sock
*self
;
1292 struct sk_buff
*skb
;
1295 IRDA_DEBUG(4, "%s(), len=%zd\n", __func__
, len
);
1297 /* Note : socket.c set MSG_EOR on SEQPACKET sockets */
1298 if (msg
->msg_flags
& ~(MSG_DONTWAIT
| MSG_EOR
| MSG_CMSG_COMPAT
|
1305 if (sk
->sk_shutdown
& SEND_SHUTDOWN
)
1308 if (sk
->sk_state
!= TCP_ESTABLISHED
) {
1315 /* Check if IrTTP is wants us to slow down */
1317 if (wait_event_interruptible(*(sk_sleep(sk
)),
1318 (self
->tx_flow
!= FLOW_STOP
|| sk
->sk_state
!= TCP_ESTABLISHED
))) {
1323 /* Check if we are still connected */
1324 if (sk
->sk_state
!= TCP_ESTABLISHED
) {
1329 /* Check that we don't send out too big frames */
1330 if (len
> self
->max_data_size
) {
1331 IRDA_DEBUG(2, "%s(), Chopping frame from %zd to %d bytes!\n",
1332 __func__
, len
, self
->max_data_size
);
1333 len
= self
->max_data_size
;
1336 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
+ 16,
1337 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1341 skb_reserve(skb
, self
->max_header_size
+ 16);
1342 skb_reset_transport_header(skb
);
1344 err
= memcpy_fromiovec(skb_transport_header(skb
), msg
->msg_iov
, len
);
1351 * Just send the message to TinyTP, and let it deal with possible
1352 * errors. No need to duplicate all that here
1354 err
= irttp_data_request(self
->tsap
, skb
);
1356 IRDA_DEBUG(0, "%s(), err=%d\n", __func__
, err
);
1361 /* Tell client how much data we actually sent */
1365 err
= sk_stream_error(sk
, msg
->msg_flags
, err
);
1373 * Function irda_recvmsg_dgram (iocb, sock, msg, size, flags)
1375 * Try to receive message and copy it to user. The frame is discarded
1376 * after being read, regardless of how much the user actually read
1378 static int irda_recvmsg_dgram(struct kiocb
*iocb
, struct socket
*sock
,
1379 struct msghdr
*msg
, size_t size
, int flags
)
1381 struct sock
*sk
= sock
->sk
;
1382 struct irda_sock
*self
= irda_sk(sk
);
1383 struct sk_buff
*skb
;
1387 IRDA_DEBUG(4, "%s()\n", __func__
);
1389 skb
= skb_recv_datagram(sk
, flags
& ~MSG_DONTWAIT
,
1390 flags
& MSG_DONTWAIT
, &err
);
1394 skb_reset_transport_header(skb
);
1397 if (copied
> size
) {
1398 IRDA_DEBUG(2, "%s(), Received truncated frame (%zd < %zd)!\n",
1399 __func__
, copied
, size
);
1401 msg
->msg_flags
|= MSG_TRUNC
;
1403 skb_copy_datagram_iovec(skb
, 0, msg
->msg_iov
, copied
);
1405 skb_free_datagram(sk
, skb
);
1408 * Check if we have previously stopped IrTTP and we know
1409 * have more free space in our rx_queue. If so tell IrTTP
1410 * to start delivering frames again before our rx_queue gets
1413 if (self
->rx_flow
== FLOW_STOP
) {
1414 if ((atomic_read(&sk
->sk_rmem_alloc
) << 2) <= sk
->sk_rcvbuf
) {
1415 IRDA_DEBUG(2, "%s(), Starting IrTTP\n", __func__
);
1416 self
->rx_flow
= FLOW_START
;
1417 irttp_flow_request(self
->tsap
, FLOW_START
);
1425 * Function irda_recvmsg_stream (iocb, sock, msg, size, flags)
1427 static int irda_recvmsg_stream(struct kiocb
*iocb
, struct socket
*sock
,
1428 struct msghdr
*msg
, size_t size
, int flags
)
1430 struct sock
*sk
= sock
->sk
;
1431 struct irda_sock
*self
= irda_sk(sk
);
1432 int noblock
= flags
& MSG_DONTWAIT
;
1437 IRDA_DEBUG(3, "%s()\n", __func__
);
1439 if ((err
= sock_error(sk
)) < 0)
1442 if (sock
->flags
& __SO_ACCEPTCON
)
1446 if (flags
& MSG_OOB
)
1450 target
= sock_rcvlowat(sk
, flags
& MSG_WAITALL
, size
);
1451 timeo
= sock_rcvtimeo(sk
, noblock
);
1453 msg
->msg_namelen
= 0;
1457 struct sk_buff
*skb
= skb_dequeue(&sk
->sk_receive_queue
);
1463 if (copied
>= target
)
1466 prepare_to_wait_exclusive(sk_sleep(sk
), &wait
, TASK_INTERRUPTIBLE
);
1469 * POSIX 1003.1g mandates this order.
1471 err
= sock_error(sk
);
1474 else if (sk
->sk_shutdown
& RCV_SHUTDOWN
)
1478 else if (signal_pending(current
))
1479 err
= sock_intr_errno(timeo
);
1480 else if (sk
->sk_state
!= TCP_ESTABLISHED
)
1482 else if (skb_peek(&sk
->sk_receive_queue
) == NULL
)
1483 /* Wait process until data arrives */
1486 finish_wait(sk_sleep(sk
), &wait
);
1490 if (sk
->sk_shutdown
& RCV_SHUTDOWN
)
1496 chunk
= min_t(unsigned int, skb
->len
, size
);
1497 if (memcpy_toiovec(msg
->msg_iov
, skb
->data
, chunk
)) {
1498 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1506 /* Mark read part of skb as used */
1507 if (!(flags
& MSG_PEEK
)) {
1508 skb_pull(skb
, chunk
);
1510 /* put the skb back if we didn't use it up.. */
1512 IRDA_DEBUG(1, "%s(), back on q!\n",
1514 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1520 IRDA_DEBUG(0, "%s() questionable!?\n", __func__
);
1522 /* put message back and return */
1523 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1529 * Check if we have previously stopped IrTTP and we know
1530 * have more free space in our rx_queue. If so tell IrTTP
1531 * to start delivering frames again before our rx_queue gets
1534 if (self
->rx_flow
== FLOW_STOP
) {
1535 if ((atomic_read(&sk
->sk_rmem_alloc
) << 2) <= sk
->sk_rcvbuf
) {
1536 IRDA_DEBUG(2, "%s(), Starting IrTTP\n", __func__
);
1537 self
->rx_flow
= FLOW_START
;
1538 irttp_flow_request(self
->tsap
, FLOW_START
);
1546 * Function irda_sendmsg_dgram (iocb, sock, msg, len)
1548 * Send message down to TinyTP for the unreliable sequenced
1552 static int irda_sendmsg_dgram(struct kiocb
*iocb
, struct socket
*sock
,
1553 struct msghdr
*msg
, size_t len
)
1555 struct sock
*sk
= sock
->sk
;
1556 struct irda_sock
*self
;
1557 struct sk_buff
*skb
;
1560 IRDA_DEBUG(4, "%s(), len=%zd\n", __func__
, len
);
1562 if (msg
->msg_flags
& ~(MSG_DONTWAIT
|MSG_CMSG_COMPAT
))
1567 if (sk
->sk_shutdown
& SEND_SHUTDOWN
) {
1568 send_sig(SIGPIPE
, current
, 0);
1574 if (sk
->sk_state
!= TCP_ESTABLISHED
)
1580 * Check that we don't send out too big frames. This is an unreliable
1581 * service, so we have no fragmentation and no coalescence
1583 if (len
> self
->max_data_size
) {
1584 IRDA_DEBUG(0, "%s(), Warning to much data! "
1585 "Chopping frame from %zd to %d bytes!\n",
1586 __func__
, len
, self
->max_data_size
);
1587 len
= self
->max_data_size
;
1590 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
,
1591 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1596 skb_reserve(skb
, self
->max_header_size
);
1597 skb_reset_transport_header(skb
);
1599 IRDA_DEBUG(4, "%s(), appending user data\n", __func__
);
1601 err
= memcpy_fromiovec(skb_transport_header(skb
), msg
->msg_iov
, len
);
1608 * Just send the message to TinyTP, and let it deal with possible
1609 * errors. No need to duplicate all that here
1611 err
= irttp_udata_request(self
->tsap
, skb
);
1613 IRDA_DEBUG(0, "%s(), err=%d\n", __func__
, err
);
1626 * Function irda_sendmsg_ultra (iocb, sock, msg, len)
1628 * Send message down to IrLMP for the unreliable Ultra
1631 #ifdef CONFIG_IRDA_ULTRA
1632 static int irda_sendmsg_ultra(struct kiocb
*iocb
, struct socket
*sock
,
1633 struct msghdr
*msg
, size_t len
)
1635 struct sock
*sk
= sock
->sk
;
1636 struct irda_sock
*self
;
1639 struct sk_buff
*skb
;
1642 IRDA_DEBUG(4, "%s(), len=%zd\n", __func__
, len
);
1645 if (msg
->msg_flags
& ~(MSG_DONTWAIT
|MSG_CMSG_COMPAT
))
1651 if (sk
->sk_shutdown
& SEND_SHUTDOWN
) {
1652 send_sig(SIGPIPE
, current
, 0);
1658 /* Check if an address was specified with sendto. Jean II */
1659 if (msg
->msg_name
) {
1660 struct sockaddr_irda
*addr
= (struct sockaddr_irda
*) msg
->msg_name
;
1662 /* Check address, extract pid. Jean II */
1663 if (msg
->msg_namelen
< sizeof(*addr
))
1665 if (addr
->sir_family
!= AF_IRDA
)
1668 pid
= addr
->sir_lsap_sel
;
1670 IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __func__
);
1675 /* Check that the socket is properly bound to an Ultra
1677 if ((self
->lsap
== NULL
) ||
1678 (sk
->sk_state
!= TCP_ESTABLISHED
)) {
1679 IRDA_DEBUG(0, "%s(), socket not bound to Ultra PID.\n",
1684 /* Use PID from socket */
1689 * Check that we don't send out too big frames. This is an unreliable
1690 * service, so we have no fragmentation and no coalescence
1692 if (len
> self
->max_data_size
) {
1693 IRDA_DEBUG(0, "%s(), Warning to much data! "
1694 "Chopping frame from %zd to %d bytes!\n",
1695 __func__
, len
, self
->max_data_size
);
1696 len
= self
->max_data_size
;
1699 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
,
1700 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1705 skb_reserve(skb
, self
->max_header_size
);
1706 skb_reset_transport_header(skb
);
1708 IRDA_DEBUG(4, "%s(), appending user data\n", __func__
);
1710 err
= memcpy_fromiovec(skb_transport_header(skb
), msg
->msg_iov
, len
);
1716 err
= irlmp_connless_data_request((bound
? self
->lsap
: NULL
),
1719 IRDA_DEBUG(0, "%s(), err=%d\n", __func__
, err
);
1724 #endif /* CONFIG_IRDA_ULTRA */
1727 * Function irda_shutdown (sk, how)
1729 static int irda_shutdown(struct socket
*sock
, int how
)
1731 struct sock
*sk
= sock
->sk
;
1732 struct irda_sock
*self
= irda_sk(sk
);
1734 IRDA_DEBUG(1, "%s(%p)\n", __func__
, self
);
1738 sk
->sk_state
= TCP_CLOSE
;
1739 sk
->sk_shutdown
|= SEND_SHUTDOWN
;
1740 sk
->sk_state_change(sk
);
1743 iriap_close(self
->iriap
);
1748 irttp_disconnect_request(self
->tsap
, NULL
, P_NORMAL
);
1749 irttp_close_tsap(self
->tsap
);
1753 /* A few cleanup so the socket look as good as new... */
1754 self
->rx_flow
= self
->tx_flow
= FLOW_START
; /* needed ??? */
1755 self
->daddr
= DEV_ADDR_ANY
; /* Until we get re-connected */
1756 self
->saddr
= 0x0; /* so IrLMP assign us any link */
1764 * Function irda_poll (file, sock, wait)
1766 static unsigned int irda_poll(struct file
* file
, struct socket
*sock
,
1769 struct sock
*sk
= sock
->sk
;
1770 struct irda_sock
*self
= irda_sk(sk
);
1773 IRDA_DEBUG(4, "%s()\n", __func__
);
1775 poll_wait(file
, sk_sleep(sk
), wait
);
1778 /* Exceptional events? */
1781 if (sk
->sk_shutdown
& RCV_SHUTDOWN
) {
1782 IRDA_DEBUG(0, "%s(), POLLHUP\n", __func__
);
1787 if (!skb_queue_empty(&sk
->sk_receive_queue
)) {
1788 IRDA_DEBUG(4, "Socket is readable\n");
1789 mask
|= POLLIN
| POLLRDNORM
;
1792 /* Connection-based need to check for termination and startup */
1793 switch (sk
->sk_type
) {
1795 if (sk
->sk_state
== TCP_CLOSE
) {
1796 IRDA_DEBUG(0, "%s(), POLLHUP\n", __func__
);
1800 if (sk
->sk_state
== TCP_ESTABLISHED
) {
1801 if ((self
->tx_flow
== FLOW_START
) &&
1804 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1808 case SOCK_SEQPACKET
:
1809 if ((self
->tx_flow
== FLOW_START
) &&
1812 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1816 if (sock_writeable(sk
))
1817 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1827 * Function irda_ioctl (sock, cmd, arg)
1829 static int irda_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
1831 struct sock
*sk
= sock
->sk
;
1834 IRDA_DEBUG(4, "%s(), cmd=%#x\n", __func__
, cmd
);
1841 amount
= sk
->sk_sndbuf
- sk_wmem_alloc_get(sk
);
1844 err
= put_user(amount
, (unsigned int __user
*)arg
);
1849 struct sk_buff
*skb
;
1851 /* These two are safe on a single CPU system as only user tasks fiddle here */
1852 if ((skb
= skb_peek(&sk
->sk_receive_queue
)) != NULL
)
1854 err
= put_user(amount
, (unsigned int __user
*)arg
);
1860 err
= sock_get_timestamp(sk
, (struct timeval __user
*)arg
);
1865 case SIOCGIFDSTADDR
:
1866 case SIOCSIFDSTADDR
:
1867 case SIOCGIFBRDADDR
:
1868 case SIOCSIFBRDADDR
:
1869 case SIOCGIFNETMASK
:
1870 case SIOCSIFNETMASK
:
1875 IRDA_DEBUG(1, "%s(), doing device ioctl!\n", __func__
);
1882 #ifdef CONFIG_COMPAT
1884 * Function irda_ioctl (sock, cmd, arg)
1886 static int irda_compat_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
1889 * All IRDA's ioctl are standard ones.
1891 return -ENOIOCTLCMD
;
1896 * Function irda_setsockopt (sock, level, optname, optval, optlen)
1898 * Set some options for the socket
1901 static int irda_setsockopt(struct socket
*sock
, int level
, int optname
,
1902 char __user
*optval
, unsigned int optlen
)
1904 struct sock
*sk
= sock
->sk
;
1905 struct irda_sock
*self
= irda_sk(sk
);
1906 struct irda_ias_set
*ias_opt
;
1907 struct ias_object
*ias_obj
;
1908 struct ias_attrib
* ias_attr
; /* Attribute in IAS object */
1909 int opt
, free_ias
= 0, err
= 0;
1911 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
1913 if (level
!= SOL_IRLMP
)
1914 return -ENOPROTOOPT
;
1920 /* The user want to add an attribute to an existing IAS object
1921 * (in the IAS database) or to create a new object with this
1923 * We first query IAS to know if the object exist, and then
1924 * create the right attribute...
1927 if (optlen
!= sizeof(struct irda_ias_set
)) {
1932 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
1933 if (ias_opt
== NULL
) {
1938 /* Copy query to the driver. */
1939 if (copy_from_user(ias_opt
, optval
, optlen
)) {
1945 /* Find the object we target.
1946 * If the user gives us an empty string, we use the object
1947 * associated with this socket. This will workaround
1948 * duplicated class name - Jean II */
1949 if(ias_opt
->irda_class_name
[0] == '\0') {
1950 if(self
->ias_obj
== NULL
) {
1955 ias_obj
= self
->ias_obj
;
1957 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
1959 /* Only ROOT can mess with the global IAS database.
1960 * Users can only add attributes to the object associated
1961 * with the socket they own - Jean II */
1962 if((!capable(CAP_NET_ADMIN
)) &&
1963 ((ias_obj
== NULL
) || (ias_obj
!= self
->ias_obj
))) {
1969 /* If the object doesn't exist, create it */
1970 if(ias_obj
== (struct ias_object
*) NULL
) {
1971 /* Create a new object */
1972 ias_obj
= irias_new_object(ias_opt
->irda_class_name
,
1974 if (ias_obj
== NULL
) {
1982 /* Do we have the attribute already ? */
1983 if(irias_find_attrib(ias_obj
, ias_opt
->irda_attrib_name
)) {
1986 kfree(ias_obj
->name
);
1993 /* Look at the type */
1994 switch(ias_opt
->irda_attrib_type
) {
1996 /* Add an integer attribute */
1997 irias_add_integer_attrib(
1999 ias_opt
->irda_attrib_name
,
2000 ias_opt
->attribute
.irda_attrib_int
,
2005 if(ias_opt
->attribute
.irda_attrib_octet_seq
.len
>
2006 IAS_MAX_OCTET_STRING
) {
2009 kfree(ias_obj
->name
);
2016 /* Add an octet sequence attribute */
2017 irias_add_octseq_attrib(
2019 ias_opt
->irda_attrib_name
,
2020 ias_opt
->attribute
.irda_attrib_octet_seq
.octet_seq
,
2021 ias_opt
->attribute
.irda_attrib_octet_seq
.len
,
2025 /* Should check charset & co */
2027 /* The length is encoded in a __u8, and
2028 * IAS_MAX_STRING == 256, so there is no way
2029 * userspace can pass us a string too large.
2031 /* NULL terminate the string (avoid troubles) */
2032 ias_opt
->attribute
.irda_attrib_string
.string
[ias_opt
->attribute
.irda_attrib_string
.len
] = '\0';
2033 /* Add a string attribute */
2034 irias_add_string_attrib(
2036 ias_opt
->irda_attrib_name
,
2037 ias_opt
->attribute
.irda_attrib_string
.string
,
2043 kfree(ias_obj
->name
);
2049 irias_insert_object(ias_obj
);
2053 /* The user want to delete an object from our local IAS
2054 * database. We just need to query the IAS, check is the
2055 * object is not owned by the kernel and delete it.
2058 if (optlen
!= sizeof(struct irda_ias_set
)) {
2063 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
2064 if (ias_opt
== NULL
) {
2069 /* Copy query to the driver. */
2070 if (copy_from_user(ias_opt
, optval
, optlen
)) {
2076 /* Find the object we target.
2077 * If the user gives us an empty string, we use the object
2078 * associated with this socket. This will workaround
2079 * duplicated class name - Jean II */
2080 if(ias_opt
->irda_class_name
[0] == '\0')
2081 ias_obj
= self
->ias_obj
;
2083 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
2084 if(ias_obj
== (struct ias_object
*) NULL
) {
2090 /* Only ROOT can mess with the global IAS database.
2091 * Users can only del attributes from the object associated
2092 * with the socket they own - Jean II */
2093 if((!capable(CAP_NET_ADMIN
)) &&
2094 ((ias_obj
== NULL
) || (ias_obj
!= self
->ias_obj
))) {
2100 /* Find the attribute (in the object) we target */
2101 ias_attr
= irias_find_attrib(ias_obj
,
2102 ias_opt
->irda_attrib_name
);
2103 if(ias_attr
== (struct ias_attrib
*) NULL
) {
2109 /* Check is the user space own the object */
2110 if(ias_attr
->value
->owner
!= IAS_USER_ATTR
) {
2111 IRDA_DEBUG(1, "%s(), attempting to delete a kernel attribute\n", __func__
);
2117 /* Remove the attribute (and maybe the object) */
2118 irias_delete_attrib(ias_obj
, ias_attr
, 1);
2121 case IRLMP_MAX_SDU_SIZE
:
2122 if (optlen
< sizeof(int)) {
2127 if (get_user(opt
, (int __user
*)optval
)) {
2132 /* Only possible for a seqpacket service (TTP with SAR) */
2133 if (sk
->sk_type
!= SOCK_SEQPACKET
) {
2134 IRDA_DEBUG(2, "%s(), setting max_sdu_size = %d\n",
2136 self
->max_sdu_size_rx
= opt
;
2138 IRDA_WARNING("%s: not allowed to set MAXSDUSIZE for this socket type!\n",
2144 case IRLMP_HINTS_SET
:
2145 if (optlen
< sizeof(int)) {
2150 /* The input is really a (__u8 hints[2]), easier as an int */
2151 if (get_user(opt
, (int __user
*)optval
)) {
2156 /* Unregister any old registration */
2158 irlmp_unregister_service(self
->skey
);
2160 self
->skey
= irlmp_register_service((__u16
) opt
);
2162 case IRLMP_HINT_MASK_SET
:
2163 /* As opposed to the previous case which set the hint bits
2164 * that we advertise, this one set the filter we use when
2165 * making a discovery (nodes which don't match any hint
2166 * bit in the mask are not reported).
2168 if (optlen
< sizeof(int)) {
2173 /* The input is really a (__u8 hints[2]), easier as an int */
2174 if (get_user(opt
, (int __user
*)optval
)) {
2179 /* Set the new hint mask */
2180 self
->mask
.word
= (__u16
) opt
;
2181 /* Mask out extension bits */
2182 self
->mask
.word
&= 0x7f7f;
2183 /* Check if no bits */
2184 if(!self
->mask
.word
)
2185 self
->mask
.word
= 0xFFFF;
2200 * Function irda_extract_ias_value(ias_opt, ias_value)
2202 * Translate internal IAS value structure to the user space representation
2204 * The external representation of IAS values, as we exchange them with
2205 * user space program is quite different from the internal representation,
2206 * as stored in the IAS database (because we need a flat structure for
2207 * crossing kernel boundary).
2208 * This function transform the former in the latter. We also check
2209 * that the value type is valid.
2211 static int irda_extract_ias_value(struct irda_ias_set
*ias_opt
,
2212 struct ias_value
*ias_value
)
2214 /* Look at the type */
2215 switch (ias_value
->type
) {
2217 /* Copy the integer */
2218 ias_opt
->attribute
.irda_attrib_int
= ias_value
->t
.integer
;
2222 ias_opt
->attribute
.irda_attrib_octet_seq
.len
= ias_value
->len
;
2224 memcpy(ias_opt
->attribute
.irda_attrib_octet_seq
.octet_seq
,
2225 ias_value
->t
.oct_seq
, ias_value
->len
);
2229 ias_opt
->attribute
.irda_attrib_string
.len
= ias_value
->len
;
2230 ias_opt
->attribute
.irda_attrib_string
.charset
= ias_value
->charset
;
2232 memcpy(ias_opt
->attribute
.irda_attrib_string
.string
,
2233 ias_value
->t
.string
, ias_value
->len
);
2234 /* NULL terminate the string (avoid troubles) */
2235 ias_opt
->attribute
.irda_attrib_string
.string
[ias_value
->len
] = '\0';
2242 /* Copy type over */
2243 ias_opt
->irda_attrib_type
= ias_value
->type
;
2249 * Function irda_getsockopt (sock, level, optname, optval, optlen)
2251 static int irda_getsockopt(struct socket
*sock
, int level
, int optname
,
2252 char __user
*optval
, int __user
*optlen
)
2254 struct sock
*sk
= sock
->sk
;
2255 struct irda_sock
*self
= irda_sk(sk
);
2256 struct irda_device_list list
;
2257 struct irda_device_info
*discoveries
;
2258 struct irda_ias_set
* ias_opt
; /* IAS get/query params */
2259 struct ias_object
* ias_obj
; /* Object in IAS */
2260 struct ias_attrib
* ias_attr
; /* Attribute in IAS object */
2261 int daddr
= DEV_ADDR_ANY
; /* Dest address for IAS queries */
2267 IRDA_DEBUG(2, "%s(%p)\n", __func__
, self
);
2269 if (level
!= SOL_IRLMP
)
2270 return -ENOPROTOOPT
;
2272 if (get_user(len
, optlen
))
2281 case IRLMP_ENUMDEVICES
:
2283 /* Offset to first device entry */
2284 offset
= sizeof(struct irda_device_list
) -
2285 sizeof(struct irda_device_info
);
2292 /* Ask lmp for the current discovery log */
2293 discoveries
= irlmp_get_discoveries(&list
.len
, self
->mask
.word
,
2295 /* Check if the we got some results */
2296 if (discoveries
== NULL
) {
2298 goto out
; /* Didn't find any devices */
2301 /* Write total list length back to client */
2302 if (copy_to_user(optval
, &list
, offset
))
2305 /* Copy the list itself - watch for overflow */
2306 if (list
.len
> 2048) {
2310 total
= offset
+ (list
.len
* sizeof(struct irda_device_info
));
2313 if (copy_to_user(optval
+offset
, discoveries
, total
- offset
))
2316 /* Write total number of bytes used back to client */
2317 if (put_user(total
, optlen
))
2320 /* Free up our buffer */
2323 case IRLMP_MAX_SDU_SIZE
:
2324 val
= self
->max_data_size
;
2326 if (put_user(len
, optlen
)) {
2331 if (copy_to_user(optval
, &val
, len
)) {
2338 /* The user want an object from our local IAS database.
2339 * We just need to query the IAS and return the value
2342 /* Check that the user has allocated the right space for us */
2343 if (len
!= sizeof(struct irda_ias_set
)) {
2348 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
2349 if (ias_opt
== NULL
) {
2354 /* Copy query to the driver. */
2355 if (copy_from_user(ias_opt
, optval
, len
)) {
2361 /* Find the object we target.
2362 * If the user gives us an empty string, we use the object
2363 * associated with this socket. This will workaround
2364 * duplicated class name - Jean II */
2365 if(ias_opt
->irda_class_name
[0] == '\0')
2366 ias_obj
= self
->ias_obj
;
2368 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
2369 if(ias_obj
== (struct ias_object
*) NULL
) {
2375 /* Find the attribute (in the object) we target */
2376 ias_attr
= irias_find_attrib(ias_obj
,
2377 ias_opt
->irda_attrib_name
);
2378 if(ias_attr
== (struct ias_attrib
*) NULL
) {
2384 /* Translate from internal to user structure */
2385 err
= irda_extract_ias_value(ias_opt
, ias_attr
->value
);
2391 /* Copy reply to the user */
2392 if (copy_to_user(optval
, ias_opt
,
2393 sizeof(struct irda_ias_set
))) {
2398 /* Note : don't need to put optlen, we checked it */
2401 case IRLMP_IAS_QUERY
:
2402 /* The user want an object from a remote IAS database.
2403 * We need to use IAP to query the remote database and
2404 * then wait for the answer to come back. */
2406 /* Check that the user has allocated the right space for us */
2407 if (len
!= sizeof(struct irda_ias_set
)) {
2412 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
2413 if (ias_opt
== NULL
) {
2418 /* Copy query to the driver. */
2419 if (copy_from_user(ias_opt
, optval
, len
)) {
2425 /* At this point, there are two cases...
2426 * 1) the socket is connected - that's the easy case, we
2427 * just query the device we are connected to...
2428 * 2) the socket is not connected - the user doesn't want
2429 * to connect and/or may not have a valid service name
2430 * (so can't create a fake connection). In this case,
2431 * we assume that the user pass us a valid destination
2432 * address in the requesting structure...
2434 if(self
->daddr
!= DEV_ADDR_ANY
) {
2435 /* We are connected - reuse known daddr */
2436 daddr
= self
->daddr
;
2438 /* We are not connected, we must specify a valid
2439 * destination address */
2440 daddr
= ias_opt
->daddr
;
2441 if((!daddr
) || (daddr
== DEV_ADDR_ANY
)) {
2448 /* Check that we can proceed with IAP */
2450 IRDA_WARNING("%s: busy with a previous query\n",
2457 self
->iriap
= iriap_open(LSAP_ANY
, IAS_CLIENT
, self
,
2458 irda_getvalue_confirm
);
2460 if (self
->iriap
== NULL
) {
2466 /* Treat unexpected wakeup as disconnect */
2467 self
->errno
= -EHOSTUNREACH
;
2469 /* Query remote LM-IAS */
2470 iriap_getvaluebyclass_request(self
->iriap
,
2472 ias_opt
->irda_class_name
,
2473 ias_opt
->irda_attrib_name
);
2475 /* Wait for answer, if not yet finished (or failed) */
2476 if (wait_event_interruptible(self
->query_wait
,
2477 (self
->iriap
== NULL
))) {
2478 /* pending request uses copy of ias_opt-content
2479 * we can free it regardless! */
2481 /* Treat signals as disconnect */
2482 err
= -EHOSTUNREACH
;
2486 /* Check what happened */
2490 /* Requested object/attribute doesn't exist */
2491 if((self
->errno
== IAS_CLASS_UNKNOWN
) ||
2492 (self
->errno
== IAS_ATTRIB_UNKNOWN
))
2493 err
= -EADDRNOTAVAIL
;
2495 err
= -EHOSTUNREACH
;
2500 /* Translate from internal to user structure */
2501 err
= irda_extract_ias_value(ias_opt
, self
->ias_result
);
2502 if (self
->ias_result
)
2503 irias_delete_value(self
->ias_result
);
2509 /* Copy reply to the user */
2510 if (copy_to_user(optval
, ias_opt
,
2511 sizeof(struct irda_ias_set
))) {
2516 /* Note : don't need to put optlen, we checked it */
2519 case IRLMP_WAITDEVICE
:
2520 /* This function is just another way of seeing life ;-)
2521 * IRLMP_ENUMDEVICES assumes that you have a static network,
2522 * and that you just want to pick one of the devices present.
2523 * On the other hand, in here we assume that no device is
2524 * present and that at some point in the future a device will
2525 * come into range. When this device arrive, we just wake
2526 * up the caller, so that he has time to connect to it before
2527 * the device goes away...
2528 * Note : once the node has been discovered for more than a
2529 * few second, it won't trigger this function, unless it
2530 * goes away and come back changes its hint bits (so we
2531 * might call it IRLMP_WAITNEWDEVICE).
2534 /* Check that the user is passing us an int */
2535 if (len
!= sizeof(int)) {
2539 /* Get timeout in ms (max time we block the caller) */
2540 if (get_user(val
, (int __user
*)optval
)) {
2545 /* Tell IrLMP we want to be notified */
2546 irlmp_update_client(self
->ckey
, self
->mask
.word
,
2547 irda_selective_discovery_indication
,
2548 NULL
, (void *) self
);
2550 /* Do some discovery (and also return cached results) */
2551 irlmp_discovery_request(self
->nslots
);
2553 /* Wait until a node is discovered */
2554 if (!self
->cachedaddr
) {
2555 IRDA_DEBUG(1, "%s(), nothing discovered yet, going to sleep...\n", __func__
);
2557 /* Set watchdog timer to expire in <val> ms. */
2559 setup_timer(&self
->watchdog
, irda_discovery_timeout
,
2560 (unsigned long)self
);
2561 mod_timer(&self
->watchdog
,
2562 jiffies
+ msecs_to_jiffies(val
));
2564 /* Wait for IR-LMP to call us back */
2565 __wait_event_interruptible(self
->query_wait
,
2566 (self
->cachedaddr
!= 0 || self
->errno
== -ETIME
),
2569 /* If watchdog is still activated, kill it! */
2570 del_timer(&(self
->watchdog
));
2572 IRDA_DEBUG(1, "%s(), ...waking up !\n", __func__
);
2578 IRDA_DEBUG(1, "%s(), found immediately !\n",
2581 /* Tell IrLMP that we have been notified */
2582 irlmp_update_client(self
->ckey
, self
->mask
.word
,
2585 /* Check if the we got some results */
2586 if (!self
->cachedaddr
) {
2587 err
= -EAGAIN
; /* Didn't find any devices */
2590 daddr
= self
->cachedaddr
;
2592 self
->cachedaddr
= 0;
2594 /* We return the daddr of the device that trigger the
2595 * wakeup. As irlmp pass us only the new devices, we
2596 * are sure that it's not an old device.
2597 * If the user want more details, he should query
2598 * the whole discovery log and pick one device...
2600 if (put_user(daddr
, (int __user
*)optval
)) {
2617 static const struct net_proto_family irda_family_ops
= {
2619 .create
= irda_create
,
2620 .owner
= THIS_MODULE
,
2623 static const struct proto_ops irda_stream_ops
= {
2625 .owner
= THIS_MODULE
,
2626 .release
= irda_release
,
2628 .connect
= irda_connect
,
2629 .socketpair
= sock_no_socketpair
,
2630 .accept
= irda_accept
,
2631 .getname
= irda_getname
,
2633 .ioctl
= irda_ioctl
,
2634 #ifdef CONFIG_COMPAT
2635 .compat_ioctl
= irda_compat_ioctl
,
2637 .listen
= irda_listen
,
2638 .shutdown
= irda_shutdown
,
2639 .setsockopt
= irda_setsockopt
,
2640 .getsockopt
= irda_getsockopt
,
2641 .sendmsg
= irda_sendmsg
,
2642 .recvmsg
= irda_recvmsg_stream
,
2643 .mmap
= sock_no_mmap
,
2644 .sendpage
= sock_no_sendpage
,
2647 static const struct proto_ops irda_seqpacket_ops
= {
2649 .owner
= THIS_MODULE
,
2650 .release
= irda_release
,
2652 .connect
= irda_connect
,
2653 .socketpair
= sock_no_socketpair
,
2654 .accept
= irda_accept
,
2655 .getname
= irda_getname
,
2656 .poll
= datagram_poll
,
2657 .ioctl
= irda_ioctl
,
2658 #ifdef CONFIG_COMPAT
2659 .compat_ioctl
= irda_compat_ioctl
,
2661 .listen
= irda_listen
,
2662 .shutdown
= irda_shutdown
,
2663 .setsockopt
= irda_setsockopt
,
2664 .getsockopt
= irda_getsockopt
,
2665 .sendmsg
= irda_sendmsg
,
2666 .recvmsg
= irda_recvmsg_dgram
,
2667 .mmap
= sock_no_mmap
,
2668 .sendpage
= sock_no_sendpage
,
2671 static const struct proto_ops irda_dgram_ops
= {
2673 .owner
= THIS_MODULE
,
2674 .release
= irda_release
,
2676 .connect
= irda_connect
,
2677 .socketpair
= sock_no_socketpair
,
2678 .accept
= irda_accept
,
2679 .getname
= irda_getname
,
2680 .poll
= datagram_poll
,
2681 .ioctl
= irda_ioctl
,
2682 #ifdef CONFIG_COMPAT
2683 .compat_ioctl
= irda_compat_ioctl
,
2685 .listen
= irda_listen
,
2686 .shutdown
= irda_shutdown
,
2687 .setsockopt
= irda_setsockopt
,
2688 .getsockopt
= irda_getsockopt
,
2689 .sendmsg
= irda_sendmsg_dgram
,
2690 .recvmsg
= irda_recvmsg_dgram
,
2691 .mmap
= sock_no_mmap
,
2692 .sendpage
= sock_no_sendpage
,
2695 #ifdef CONFIG_IRDA_ULTRA
2696 static const struct proto_ops irda_ultra_ops
= {
2698 .owner
= THIS_MODULE
,
2699 .release
= irda_release
,
2701 .connect
= sock_no_connect
,
2702 .socketpair
= sock_no_socketpair
,
2703 .accept
= sock_no_accept
,
2704 .getname
= irda_getname
,
2705 .poll
= datagram_poll
,
2706 .ioctl
= irda_ioctl
,
2707 #ifdef CONFIG_COMPAT
2708 .compat_ioctl
= irda_compat_ioctl
,
2710 .listen
= sock_no_listen
,
2711 .shutdown
= irda_shutdown
,
2712 .setsockopt
= irda_setsockopt
,
2713 .getsockopt
= irda_getsockopt
,
2714 .sendmsg
= irda_sendmsg_ultra
,
2715 .recvmsg
= irda_recvmsg_dgram
,
2716 .mmap
= sock_no_mmap
,
2717 .sendpage
= sock_no_sendpage
,
2719 #endif /* CONFIG_IRDA_ULTRA */
2722 * Function irsock_init (pro)
2724 * Initialize IrDA protocol
2727 int __init
irsock_init(void)
2729 int rc
= proto_register(&irda_proto
, 0);
2732 rc
= sock_register(&irda_family_ops
);
2738 * Function irsock_cleanup (void)
2740 * Remove IrDA protocol
2743 void irsock_cleanup(void)
2745 sock_unregister(PF_IRDA
);
2746 proto_unregister(&irda_proto
);