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/config.h>
46 #include <linux/module.h>
47 #include <linux/types.h>
48 #include <linux/socket.h>
49 #include <linux/sockios.h>
50 #include <linux/init.h>
51 #include <linux/net.h>
52 #include <linux/irda.h>
53 #include <linux/poll.h>
55 #include <asm/ioctls.h> /* TIOCOUTQ, TIOCINQ */
56 #include <asm/uaccess.h>
59 #include <net/tcp_states.h>
61 #include <net/irda/af_irda.h>
63 static int irda_create(struct socket
*sock
, int protocol
);
65 static const struct proto_ops irda_stream_ops
;
66 static const struct proto_ops irda_seqpacket_ops
;
67 static const struct proto_ops irda_dgram_ops
;
69 #ifdef CONFIG_IRDA_ULTRA
70 static const struct proto_ops irda_ultra_ops
;
71 #define ULTRA_MAX_DATA 382
72 #endif /* CONFIG_IRDA_ULTRA */
74 #define IRDA_MAX_HEADER (TTP_MAX_HEADER)
77 * Function irda_data_indication (instance, sap, skb)
79 * Received some data from TinyTP. Just queue it on the receive queue
82 static int irda_data_indication(void *instance
, void *sap
, struct sk_buff
*skb
)
84 struct irda_sock
*self
;
88 IRDA_DEBUG(3, "%s()\n", __FUNCTION__
);
92 IRDA_ASSERT(sk
!= NULL
, return -1;);
94 err
= sock_queue_rcv_skb(sk
, skb
);
96 IRDA_DEBUG(1, "%s(), error: no more mem!\n", __FUNCTION__
);
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", __FUNCTION__
, 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() */
134 if (!sock_flag(sk
, SOCK_DEAD
) && sk
->sk_state
!= TCP_CLOSE
) {
135 sk
->sk_state
= TCP_CLOSE
;
136 sk
->sk_err
= ECONNRESET
;
137 sk
->sk_shutdown
|= SEND_SHUTDOWN
;
139 sk
->sk_state_change(sk
);
140 /* Uh-oh... Should use sock_orphan ? */
141 sock_set_flag(sk
, SOCK_DEAD
);
144 * If we leave it open, IrLMP put it back into the list of
145 * unconnected LSAPs. The problem is that any incoming request
146 * can then be matched to this socket (and it will be, because
147 * it is at the head of the list). This would prevent any
148 * listening socket waiting on the same TSAP to get those
149 * requests. Some apps forget to close sockets, or hang to it
150 * a bit too long, so we may stay in this dead state long
151 * enough to be noticed...
152 * Note : all socket function do check sk->sk_state, so we are
157 irttp_close_tsap(self
->tsap
);
162 /* Note : once we are there, there is not much you want to do
163 * with the socket anymore, apart from closing it.
164 * For example, bind() and connect() won't reset sk->sk_err,
165 * sk->sk_shutdown and sk->sk_flags to valid values...
171 * Function irda_connect_confirm (instance, sap, qos, max_sdu_size, skb)
173 * Connections has been confirmed by the remote device
176 static void irda_connect_confirm(void *instance
, void *sap
,
177 struct qos_info
*qos
,
178 __u32 max_sdu_size
, __u8 max_header_size
,
181 struct irda_sock
*self
;
186 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
195 // Should be ??? skb_queue_tail(&sk->sk_receive_queue, skb);
197 /* How much header space do we need to reserve */
198 self
->max_header_size
= max_header_size
;
200 /* IrTTP max SDU size in transmit direction */
201 self
->max_sdu_size_tx
= max_sdu_size
;
203 /* Find out what the largest chunk of data that we can transmit is */
204 switch (sk
->sk_type
) {
206 if (max_sdu_size
!= 0) {
207 IRDA_ERROR("%s: max_sdu_size must be 0\n",
211 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
214 if (max_sdu_size
== 0) {
215 IRDA_ERROR("%s: max_sdu_size cannot be 0\n",
219 self
->max_data_size
= max_sdu_size
;
222 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
225 IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __FUNCTION__
,
226 self
->max_data_size
);
228 memcpy(&self
->qos_tx
, qos
, sizeof(struct qos_info
));
230 /* We are now connected! */
231 sk
->sk_state
= TCP_ESTABLISHED
;
232 sk
->sk_state_change(sk
);
236 * Function irda_connect_indication(instance, sap, qos, max_sdu_size, userdata)
238 * Incoming connection
241 static void irda_connect_indication(void *instance
, void *sap
,
242 struct qos_info
*qos
, __u32 max_sdu_size
,
243 __u8 max_header_size
, struct sk_buff
*skb
)
245 struct irda_sock
*self
;
250 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
258 /* How much header space do we need to reserve */
259 self
->max_header_size
= max_header_size
;
261 /* IrTTP max SDU size in transmit direction */
262 self
->max_sdu_size_tx
= max_sdu_size
;
264 /* Find out what the largest chunk of data that we can transmit is */
265 switch (sk
->sk_type
) {
267 if (max_sdu_size
!= 0) {
268 IRDA_ERROR("%s: max_sdu_size must be 0\n",
273 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
276 if (max_sdu_size
== 0) {
277 IRDA_ERROR("%s: max_sdu_size cannot be 0\n",
282 self
->max_data_size
= max_sdu_size
;
285 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
288 IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __FUNCTION__
,
289 self
->max_data_size
);
291 memcpy(&self
->qos_tx
, qos
, sizeof(struct qos_info
));
293 skb_queue_tail(&sk
->sk_receive_queue
, skb
);
294 sk
->sk_state_change(sk
);
298 * Function irda_connect_response (handle)
300 * Accept incoming connection
303 static void irda_connect_response(struct irda_sock
*self
)
307 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
309 IRDA_ASSERT(self
!= NULL
, return;);
311 skb
= dev_alloc_skb(64);
313 IRDA_DEBUG(0, "%s() Unable to allocate sk_buff!\n",
318 /* Reserve space for MUX_CONTROL and LAP header */
319 skb_reserve(skb
, IRDA_MAX_HEADER
);
321 irttp_connect_response(self
->tsap
, self
->max_sdu_size_rx
, skb
);
325 * Function irda_flow_indication (instance, sap, flow)
327 * Used by TinyTP to tell us if it can accept more data or not
330 static void irda_flow_indication(void *instance
, void *sap
, LOCAL_FLOW flow
)
332 struct irda_sock
*self
;
335 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
339 IRDA_ASSERT(sk
!= NULL
, return;);
343 IRDA_DEBUG(1, "%s(), IrTTP wants us to slow down\n",
345 self
->tx_flow
= flow
;
348 self
->tx_flow
= flow
;
349 IRDA_DEBUG(1, "%s(), IrTTP wants us to start again\n",
351 wake_up_interruptible(sk
->sk_sleep
);
354 IRDA_DEBUG(0, "%s(), Unknown flow command!\n", __FUNCTION__
);
355 /* Unknown flow command, better stop */
356 self
->tx_flow
= flow
;
362 * Function irda_getvalue_confirm (obj_id, value, priv)
364 * Got answer from remote LM-IAS, just pass object to requester...
366 * Note : duplicate from above, but we need our own version that
367 * doesn't touch the dtsap_sel and save the full value structure...
369 static void irda_getvalue_confirm(int result
, __u16 obj_id
,
370 struct ias_value
*value
, void *priv
)
372 struct irda_sock
*self
;
374 self
= (struct irda_sock
*) priv
;
376 IRDA_WARNING("%s: lost myself!\n", __FUNCTION__
);
380 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
382 /* We probably don't need to make any more queries */
383 iriap_close(self
->iriap
);
386 /* Check if request succeeded */
387 if (result
!= IAS_SUCCESS
) {
388 IRDA_DEBUG(1, "%s(), IAS query failed! (%d)\n", __FUNCTION__
,
391 self
->errno
= result
; /* We really need it later */
393 /* Wake up any processes waiting for result */
394 wake_up_interruptible(&self
->query_wait
);
399 /* Pass the object to the caller (so the caller must delete it) */
400 self
->ias_result
= value
;
403 /* Wake up any processes waiting for result */
404 wake_up_interruptible(&self
->query_wait
);
408 * Function irda_selective_discovery_indication (discovery)
410 * Got a selective discovery indication from IrLMP.
412 * IrLMP is telling us that this node is new and matching our hint bit
413 * filter. Wake up any process waiting for answer...
415 static void irda_selective_discovery_indication(discinfo_t
*discovery
,
419 struct irda_sock
*self
;
421 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
423 self
= (struct irda_sock
*) priv
;
425 IRDA_WARNING("%s: lost myself!\n", __FUNCTION__
);
429 /* Pass parameter to the caller */
430 self
->cachedaddr
= discovery
->daddr
;
432 /* Wake up process if its waiting for device to be discovered */
433 wake_up_interruptible(&self
->query_wait
);
437 * Function irda_discovery_timeout (priv)
439 * Timeout in the selective discovery process
441 * We were waiting for a node to be discovered, but nothing has come up
442 * so far. Wake up the user and tell him that we failed...
444 static void irda_discovery_timeout(u_long priv
)
446 struct irda_sock
*self
;
448 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
450 self
= (struct irda_sock
*) priv
;
451 IRDA_ASSERT(self
!= NULL
, return;);
453 /* Nothing for the caller */
454 self
->cachelog
= NULL
;
455 self
->cachedaddr
= 0;
456 self
->errno
= -ETIME
;
458 /* Wake up process if its still waiting... */
459 wake_up_interruptible(&self
->query_wait
);
463 * Function irda_open_tsap (self)
465 * Open local Transport Service Access Point (TSAP)
468 static int irda_open_tsap(struct irda_sock
*self
, __u8 tsap_sel
, char *name
)
473 IRDA_WARNING("%s: busy!\n", __FUNCTION__
);
477 /* Initialize callbacks to be used by the IrDA stack */
478 irda_notify_init(¬ify
);
479 notify
.connect_confirm
= irda_connect_confirm
;
480 notify
.connect_indication
= irda_connect_indication
;
481 notify
.disconnect_indication
= irda_disconnect_indication
;
482 notify
.data_indication
= irda_data_indication
;
483 notify
.udata_indication
= irda_data_indication
;
484 notify
.flow_indication
= irda_flow_indication
;
485 notify
.instance
= self
;
486 strncpy(notify
.name
, name
, NOTIFY_MAX_NAME
);
488 self
->tsap
= irttp_open_tsap(tsap_sel
, DEFAULT_INITIAL_CREDIT
,
490 if (self
->tsap
== NULL
) {
491 IRDA_DEBUG(0, "%s(), Unable to allocate TSAP!\n",
495 /* Remember which TSAP selector we actually got */
496 self
->stsap_sel
= self
->tsap
->stsap_sel
;
502 * Function irda_open_lsap (self)
504 * Open local Link Service Access Point (LSAP). Used for opening Ultra
507 #ifdef CONFIG_IRDA_ULTRA
508 static int irda_open_lsap(struct irda_sock
*self
, int pid
)
513 IRDA_WARNING("%s(), busy!\n", __FUNCTION__
);
517 /* Initialize callbacks to be used by the IrDA stack */
518 irda_notify_init(¬ify
);
519 notify
.udata_indication
= irda_data_indication
;
520 notify
.instance
= self
;
521 strncpy(notify
.name
, "Ultra", NOTIFY_MAX_NAME
);
523 self
->lsap
= irlmp_open_lsap(LSAP_CONNLESS
, ¬ify
, pid
);
524 if (self
->lsap
== NULL
) {
525 IRDA_DEBUG( 0, "%s(), Unable to allocate LSAP!\n", __FUNCTION__
);
531 #endif /* CONFIG_IRDA_ULTRA */
534 * Function irda_find_lsap_sel (self, name)
536 * Try to lookup LSAP selector in remote LM-IAS
538 * Basically, we start a IAP query, and then go to sleep. When the query
539 * return, irda_getvalue_confirm will wake us up, and we can examine the
540 * result of the query...
541 * Note that in some case, the query fail even before we go to sleep,
542 * creating some races...
544 static int irda_find_lsap_sel(struct irda_sock
*self
, char *name
)
546 IRDA_DEBUG(2, "%s(%p, %s)\n", __FUNCTION__
, self
, name
);
548 IRDA_ASSERT(self
!= NULL
, return -1;);
551 IRDA_WARNING("%s(): busy with a previous query\n",
556 self
->iriap
= iriap_open(LSAP_ANY
, IAS_CLIENT
, self
,
557 irda_getvalue_confirm
);
558 if(self
->iriap
== NULL
)
561 /* Treat unexpected wakeup as disconnect */
562 self
->errno
= -EHOSTUNREACH
;
564 /* Query remote LM-IAS */
565 iriap_getvaluebyclass_request(self
->iriap
, self
->saddr
, self
->daddr
,
566 name
, "IrDA:TinyTP:LsapSel");
568 /* Wait for answer, if not yet finished (or failed) */
569 if (wait_event_interruptible(self
->query_wait
, (self
->iriap
==NULL
)))
570 /* Treat signals as disconnect */
571 return -EHOSTUNREACH
;
573 /* Check what happened */
576 /* Requested object/attribute doesn't exist */
577 if((self
->errno
== IAS_CLASS_UNKNOWN
) ||
578 (self
->errno
== IAS_ATTRIB_UNKNOWN
))
579 return (-EADDRNOTAVAIL
);
581 return (-EHOSTUNREACH
);
584 /* Get the remote TSAP selector */
585 switch (self
->ias_result
->type
) {
587 IRDA_DEBUG(4, "%s() int=%d\n",
588 __FUNCTION__
, self
->ias_result
->t
.integer
);
590 if (self
->ias_result
->t
.integer
!= -1)
591 self
->dtsap_sel
= self
->ias_result
->t
.integer
;
597 IRDA_DEBUG(0, "%s(), bad type!\n", __FUNCTION__
);
600 if (self
->ias_result
)
601 irias_delete_value(self
->ias_result
);
606 return -EADDRNOTAVAIL
;
610 * Function irda_discover_daddr_and_lsap_sel (self, name)
612 * This try to find a device with the requested service.
614 * It basically look into the discovery log. For each address in the list,
615 * it queries the LM-IAS of the device to find if this device offer
616 * the requested service.
617 * If there is more than one node supporting the service, we complain
618 * to the user (it should move devices around).
619 * The, we set both the destination address and the lsap selector to point
620 * on the service on the unique device we have found.
622 * Note : this function fails if there is more than one device in range,
623 * because IrLMP doesn't disconnect the LAP when the last LSAP is closed.
624 * Moreover, we would need to wait the LAP disconnection...
626 static int irda_discover_daddr_and_lsap_sel(struct irda_sock
*self
, char *name
)
628 discinfo_t
*discoveries
; /* Copy of the discovery log */
629 int number
; /* Number of nodes in the log */
631 int err
= -ENETUNREACH
;
632 __u32 daddr
= DEV_ADDR_ANY
; /* Address we found the service on */
633 __u8 dtsap_sel
= 0x0; /* TSAP associated with it */
635 IRDA_DEBUG(2, "%s(), name=%s\n", __FUNCTION__
, name
);
637 IRDA_ASSERT(self
!= NULL
, return -1;);
639 /* Ask lmp for the current discovery log
640 * Note : we have to use irlmp_get_discoveries(), as opposed
641 * to play with the cachelog directly, because while we are
642 * making our ias query, le log might change... */
643 discoveries
= irlmp_get_discoveries(&number
, self
->mask
.word
,
645 /* Check if the we got some results */
646 if (discoveries
== NULL
)
647 return -ENETUNREACH
; /* No nodes discovered */
650 * Now, check all discovered devices (if any), and connect
651 * client only about the services that the client is
654 for(i
= 0; i
< number
; i
++) {
655 /* Try the address in the log */
656 self
->daddr
= discoveries
[i
].daddr
;
658 IRDA_DEBUG(1, "%s(), trying daddr = %08x\n",
659 __FUNCTION__
, self
->daddr
);
661 /* Query remote LM-IAS for this service */
662 err
= irda_find_lsap_sel(self
, name
);
665 /* We found the requested service */
666 if(daddr
!= DEV_ADDR_ANY
) {
667 IRDA_DEBUG(1, "%s(), discovered service ''%s'' in two different devices !!!\n",
669 self
->daddr
= DEV_ADDR_ANY
;
673 /* First time we found that one, save it ! */
675 dtsap_sel
= self
->dtsap_sel
;
678 /* Requested service simply doesn't exist on this node */
681 /* Something bad did happen :-( */
682 IRDA_DEBUG(0, "%s(), unexpected IAS query failure\n", __FUNCTION__
);
683 self
->daddr
= DEV_ADDR_ANY
;
685 return(-EHOSTUNREACH
);
689 /* Cleanup our copy of the discovery log */
692 /* Check out what we found */
693 if(daddr
== DEV_ADDR_ANY
) {
694 IRDA_DEBUG(1, "%s(), cannot discover service ''%s'' in any device !!!\n",
696 self
->daddr
= DEV_ADDR_ANY
;
697 return(-EADDRNOTAVAIL
);
700 /* Revert back to discovered device & service */
703 self
->dtsap_sel
= dtsap_sel
;
705 IRDA_DEBUG(1, "%s(), discovered requested service ''%s'' at address %08x\n",
706 __FUNCTION__
, name
, self
->daddr
);
712 * Function irda_getname (sock, uaddr, uaddr_len, peer)
714 * Return the our own, or peers socket address (sockaddr_irda)
717 static int irda_getname(struct socket
*sock
, struct sockaddr
*uaddr
,
718 int *uaddr_len
, int peer
)
720 struct sockaddr_irda saddr
;
721 struct sock
*sk
= sock
->sk
;
722 struct irda_sock
*self
= irda_sk(sk
);
725 if (sk
->sk_state
!= TCP_ESTABLISHED
)
728 saddr
.sir_family
= AF_IRDA
;
729 saddr
.sir_lsap_sel
= self
->dtsap_sel
;
730 saddr
.sir_addr
= self
->daddr
;
732 saddr
.sir_family
= AF_IRDA
;
733 saddr
.sir_lsap_sel
= self
->stsap_sel
;
734 saddr
.sir_addr
= self
->saddr
;
737 IRDA_DEBUG(1, "%s(), tsap_sel = %#x\n", __FUNCTION__
, saddr
.sir_lsap_sel
);
738 IRDA_DEBUG(1, "%s(), addr = %08x\n", __FUNCTION__
, saddr
.sir_addr
);
740 /* uaddr_len come to us uninitialised */
741 *uaddr_len
= sizeof (struct sockaddr_irda
);
742 memcpy(uaddr
, &saddr
, *uaddr_len
);
748 * Function irda_listen (sock, backlog)
750 * Just move to the listen state
753 static int irda_listen(struct socket
*sock
, int backlog
)
755 struct sock
*sk
= sock
->sk
;
757 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
759 if ((sk
->sk_type
!= SOCK_STREAM
) && (sk
->sk_type
!= SOCK_SEQPACKET
) &&
760 (sk
->sk_type
!= SOCK_DGRAM
))
763 if (sk
->sk_state
!= TCP_LISTEN
) {
764 sk
->sk_max_ack_backlog
= backlog
;
765 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_ASSERT(self
!= NULL
, return -1;);
788 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
790 if (addr_len
!= sizeof(struct sockaddr_irda
))
793 #ifdef CONFIG_IRDA_ULTRA
794 /* Special care for Ultra sockets */
795 if ((sk
->sk_type
== SOCK_DGRAM
) &&
796 (sk
->sk_protocol
== IRDAPROTO_ULTRA
)) {
797 self
->pid
= addr
->sir_lsap_sel
;
798 if (self
->pid
& 0x80) {
799 IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __FUNCTION__
);
802 err
= irda_open_lsap(self
, self
->pid
);
806 /* Pretend we are connected */
807 sock
->state
= SS_CONNECTED
;
808 sk
->sk_state
= TCP_ESTABLISHED
;
812 #endif /* CONFIG_IRDA_ULTRA */
814 err
= irda_open_tsap(self
, addr
->sir_lsap_sel
, addr
->sir_name
);
818 /* Register with LM-IAS */
819 self
->ias_obj
= irias_new_object(addr
->sir_name
, jiffies
);
820 irias_add_integer_attrib(self
->ias_obj
, "IrDA:TinyTP:LsapSel",
821 self
->stsap_sel
, IAS_KERNEL_ATTR
);
822 irias_insert_object(self
->ias_obj
);
828 * Function irda_accept (sock, newsock, flags)
830 * Wait for incoming connection
833 static int irda_accept(struct socket
*sock
, struct socket
*newsock
, int flags
)
835 struct sock
*sk
= sock
->sk
;
836 struct irda_sock
*new, *self
= irda_sk(sk
);
841 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
843 IRDA_ASSERT(self
!= NULL
, return -1;);
845 err
= irda_create(newsock
, sk
->sk_protocol
);
849 if (sock
->state
!= SS_UNCONNECTED
)
852 if ((sk
= sock
->sk
) == NULL
)
855 if ((sk
->sk_type
!= SOCK_STREAM
) && (sk
->sk_type
!= SOCK_SEQPACKET
) &&
856 (sk
->sk_type
!= SOCK_DGRAM
))
859 if (sk
->sk_state
!= TCP_LISTEN
)
863 * The read queue this time is holding sockets ready to use
864 * hooked into the SABM we saved
868 * We can perform the accept only if there is incoming data
869 * on the listening socket.
870 * So, we will block the caller until we receive any data.
871 * If the caller was waiting on select() or poll() before
872 * calling us, the data is waiting for us ;-)
875 skb
= skb_dequeue(&sk
->sk_receive_queue
);
878 DECLARE_WAITQUEUE(waitq
, current
);
880 /* Non blocking operation */
881 if (flags
& O_NONBLOCK
)
884 /* The following code is a cut'n'paste of the
885 * wait_event_interruptible() macro.
886 * We don't us the macro because the condition has
887 * side effects : we want to make sure that only one
888 * skb get dequeued - Jean II */
889 add_wait_queue(sk
->sk_sleep
, &waitq
);
891 set_current_state(TASK_INTERRUPTIBLE
);
892 skb
= skb_dequeue(&sk
->sk_receive_queue
);
895 if (!signal_pending(current
)) {
902 current
->state
= TASK_RUNNING
;
903 remove_wait_queue(sk
->sk_sleep
, &waitq
);
909 newsk
->sk_state
= TCP_ESTABLISHED
;
911 new = irda_sk(newsk
);
912 IRDA_ASSERT(new != NULL
, return -1;);
914 /* Now attach up the new socket */
915 new->tsap
= irttp_dup(self
->tsap
, new);
917 IRDA_DEBUG(0, "%s(), dup failed!\n", __FUNCTION__
);
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
);
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
;
932 memcpy(&new->qos_tx
, &self
->qos_tx
, sizeof(struct qos_info
));
934 /* Clean up the original one to keep it in listen state */
935 irttp_listen(self
->tsap
);
937 /* Wow ! What is that ? Jean II */
939 skb
->destructor
= NULL
;
941 sk
->sk_ack_backlog
--;
943 newsock
->state
= SS_CONNECTED
;
945 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 resoltion, 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", __FUNCTION__
, self
);
980 /* Don't allow connect for Ultra sockets */
981 if ((sk
->sk_type
== SOCK_DGRAM
) && (sk
->sk_protocol
== IRDAPROTO_ULTRA
))
982 return -ESOCKTNOSUPPORT
;
984 if (sk
->sk_state
== TCP_ESTABLISHED
&& sock
->state
== SS_CONNECTING
) {
985 sock
->state
= SS_CONNECTED
;
986 return 0; /* Connect completed during a ERESTARTSYS event */
989 if (sk
->sk_state
== TCP_CLOSE
&& sock
->state
== SS_CONNECTING
) {
990 sock
->state
= SS_UNCONNECTED
;
991 return -ECONNREFUSED
;
994 if (sk
->sk_state
== TCP_ESTABLISHED
)
995 return -EISCONN
; /* No reconnect on a seqpacket socket */
997 sk
->sk_state
= TCP_CLOSE
;
998 sock
->state
= SS_UNCONNECTED
;
1000 if (addr_len
!= sizeof(struct sockaddr_irda
))
1003 /* Check if user supplied any destination device address */
1004 if ((!addr
->sir_addr
) || (addr
->sir_addr
== DEV_ADDR_ANY
)) {
1005 /* Try to find one suitable */
1006 err
= irda_discover_daddr_and_lsap_sel(self
, addr
->sir_name
);
1008 IRDA_DEBUG(0, "%s(), auto-connect failed!\n", __FUNCTION__
);
1012 /* Use the one provided by the user */
1013 self
->daddr
= addr
->sir_addr
;
1014 IRDA_DEBUG(1, "%s(), daddr = %08x\n", __FUNCTION__
, self
->daddr
);
1016 /* If we don't have a valid service name, we assume the
1017 * user want to connect on a specific LSAP. Prevent
1018 * the use of invalid LSAPs (IrLMP 1.1 p10). Jean II */
1019 if((addr
->sir_name
[0] != '\0') ||
1020 (addr
->sir_lsap_sel
>= 0x70)) {
1021 /* Query remote LM-IAS using service name */
1022 err
= irda_find_lsap_sel(self
, addr
->sir_name
);
1024 IRDA_DEBUG(0, "%s(), connect failed!\n", __FUNCTION__
);
1028 /* Directly connect to the remote LSAP
1029 * specified by the sir_lsap field.
1030 * Please use with caution, in IrDA LSAPs are
1031 * dynamic and there is no "well-known" LSAP. */
1032 self
->dtsap_sel
= addr
->sir_lsap_sel
;
1036 /* Check if we have opened a local TSAP */
1038 irda_open_tsap(self
, LSAP_ANY
, addr
->sir_name
);
1040 /* Move to connecting socket, start sending Connect Requests */
1041 sock
->state
= SS_CONNECTING
;
1042 sk
->sk_state
= TCP_SYN_SENT
;
1044 /* Connect to remote device */
1045 err
= irttp_connect_request(self
->tsap
, self
->dtsap_sel
,
1046 self
->saddr
, self
->daddr
, NULL
,
1047 self
->max_sdu_size_rx
, NULL
);
1049 IRDA_DEBUG(0, "%s(), connect failed!\n", __FUNCTION__
);
1054 if (sk
->sk_state
!= TCP_ESTABLISHED
&& (flags
& O_NONBLOCK
))
1055 return -EINPROGRESS
;
1057 if (wait_event_interruptible(*(sk
->sk_sleep
),
1058 (sk
->sk_state
!= TCP_SYN_SENT
)))
1059 return -ERESTARTSYS
;
1061 if (sk
->sk_state
!= TCP_ESTABLISHED
) {
1062 sock
->state
= SS_UNCONNECTED
;
1063 return sock_error(sk
); /* Always set at this point */
1066 sock
->state
= SS_CONNECTED
;
1068 /* At this point, IrLMP has assigned our source address */
1069 self
->saddr
= irttp_get_saddr(self
->tsap
);
1074 static struct proto irda_proto
= {
1076 .owner
= THIS_MODULE
,
1077 .obj_size
= sizeof(struct irda_sock
),
1081 * Function irda_create (sock, protocol)
1083 * Create IrDA socket
1086 static int irda_create(struct socket
*sock
, int protocol
)
1089 struct irda_sock
*self
;
1091 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
1093 /* Check for valid socket type */
1094 switch (sock
->type
) {
1095 case SOCK_STREAM
: /* For TTP connections with SAR disabled */
1096 case SOCK_SEQPACKET
: /* For TTP connections with SAR enabled */
1097 case SOCK_DGRAM
: /* For TTP Unitdata or LMP Ultra transfers */
1100 return -ESOCKTNOSUPPORT
;
1103 /* Allocate networking socket */
1104 sk
= sk_alloc(PF_IRDA
, GFP_ATOMIC
, &irda_proto
, 1);
1109 IRDA_DEBUG(2, "%s() : self is %p\n", __FUNCTION__
, self
);
1111 init_waitqueue_head(&self
->query_wait
);
1113 /* Initialise networking socket struct */
1114 sock_init_data(sock
, sk
); /* Note : set sk->sk_refcnt to 1 */
1115 sk
->sk_family
= PF_IRDA
;
1116 sk
->sk_protocol
= protocol
;
1118 switch (sock
->type
) {
1120 sock
->ops
= &irda_stream_ops
;
1121 self
->max_sdu_size_rx
= TTP_SAR_DISABLE
;
1123 case SOCK_SEQPACKET
:
1124 sock
->ops
= &irda_seqpacket_ops
;
1125 self
->max_sdu_size_rx
= TTP_SAR_UNBOUND
;
1129 #ifdef CONFIG_IRDA_ULTRA
1130 case IRDAPROTO_ULTRA
:
1131 sock
->ops
= &irda_ultra_ops
;
1132 /* Initialise now, because we may send on unbound
1133 * sockets. Jean II */
1134 self
->max_data_size
= ULTRA_MAX_DATA
- LMP_PID_HEADER
;
1135 self
->max_header_size
= IRDA_MAX_HEADER
+ LMP_PID_HEADER
;
1137 #endif /* CONFIG_IRDA_ULTRA */
1138 case IRDAPROTO_UNITDATA
:
1139 sock
->ops
= &irda_dgram_ops
;
1140 /* We let Unitdata conn. be like seqpack conn. */
1141 self
->max_sdu_size_rx
= TTP_SAR_UNBOUND
;
1144 IRDA_ERROR("%s: protocol not supported!\n",
1146 return -ESOCKTNOSUPPORT
;
1150 return -ESOCKTNOSUPPORT
;
1153 /* Register as a client with IrLMP */
1154 self
->ckey
= irlmp_register_client(0, NULL
, NULL
, NULL
);
1155 self
->mask
.word
= 0xffff;
1156 self
->rx_flow
= self
->tx_flow
= FLOW_START
;
1157 self
->nslots
= DISCOVERY_DEFAULT_SLOTS
;
1158 self
->daddr
= DEV_ADDR_ANY
; /* Until we get connected */
1159 self
->saddr
= 0x0; /* so IrLMP assign us any link */
1164 * Function irda_destroy_socket (self)
1169 static void irda_destroy_socket(struct irda_sock
*self
)
1171 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
1173 IRDA_ASSERT(self
!= NULL
, return;);
1175 /* Unregister with IrLMP */
1176 irlmp_unregister_client(self
->ckey
);
1177 irlmp_unregister_service(self
->skey
);
1179 /* Unregister with LM-IAS */
1180 if (self
->ias_obj
) {
1181 irias_delete_object(self
->ias_obj
);
1182 self
->ias_obj
= NULL
;
1186 iriap_close(self
->iriap
);
1191 irttp_disconnect_request(self
->tsap
, NULL
, P_NORMAL
);
1192 irttp_close_tsap(self
->tsap
);
1195 #ifdef CONFIG_IRDA_ULTRA
1197 irlmp_close_lsap(self
->lsap
);
1200 #endif /* CONFIG_IRDA_ULTRA */
1204 * Function irda_release (sock)
1206 static int irda_release(struct socket
*sock
)
1208 struct sock
*sk
= sock
->sk
;
1210 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
1215 sk
->sk_state
= TCP_CLOSE
;
1216 sk
->sk_shutdown
|= SEND_SHUTDOWN
;
1217 sk
->sk_state_change(sk
);
1219 /* Destroy IrDA socket */
1220 irda_destroy_socket(irda_sk(sk
));
1225 /* Purge queues (see sock_init_data()) */
1226 skb_queue_purge(&sk
->sk_receive_queue
);
1228 /* Destroy networking socket if we are the last reference on it,
1229 * i.e. if(sk->sk_refcnt == 0) -> sk_free(sk) */
1232 /* Notes on socket locking and deallocation... - Jean II
1233 * In theory we should put pairs of sock_hold() / sock_put() to
1234 * prevent the socket to be destroyed whenever there is an
1235 * outstanding request or outstanding incoming packet or event.
1237 * 1) This may include IAS request, both in connect and getsockopt.
1238 * Unfortunately, the situation is a bit more messy than it looks,
1239 * because we close iriap and kfree(self) above.
1241 * 2) This may include selective discovery in getsockopt.
1242 * Same stuff as above, irlmp registration and self are gone.
1244 * Probably 1 and 2 may not matter, because it's all triggered
1245 * by a process and the socket layer already prevent the
1246 * socket to go away while a process is holding it, through
1247 * sockfd_put() and fput()...
1249 * 3) This may include deferred TSAP closure. In particular,
1250 * we may receive a late irda_disconnect_indication()
1251 * Fortunately, (tsap_cb *)->close_pend should protect us
1254 * I did some testing on SMP, and it looks solid. And the socket
1255 * memory leak is now gone... - Jean II
1262 * Function irda_sendmsg (iocb, sock, msg, len)
1264 * Send message down to TinyTP. This function is used for both STREAM and
1265 * SEQPACK services. This is possible since it forces the client to
1266 * fragment the message if necessary
1268 static int irda_sendmsg(struct kiocb
*iocb
, struct socket
*sock
,
1269 struct msghdr
*msg
, size_t len
)
1271 struct sock
*sk
= sock
->sk
;
1272 struct irda_sock
*self
;
1273 struct sk_buff
*skb
;
1274 unsigned char *asmptr
;
1277 IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__
, len
);
1279 /* Note : socket.c set MSG_EOR on SEQPACKET sockets */
1280 if (msg
->msg_flags
& ~(MSG_DONTWAIT
|MSG_EOR
|MSG_CMSG_COMPAT
))
1283 if (sk
->sk_shutdown
& SEND_SHUTDOWN
) {
1284 send_sig(SIGPIPE
, current
, 0);
1288 if (sk
->sk_state
!= TCP_ESTABLISHED
)
1292 IRDA_ASSERT(self
!= NULL
, return -1;);
1294 /* Check if IrTTP is wants us to slow down */
1296 if (wait_event_interruptible(*(sk
->sk_sleep
),
1297 (self
->tx_flow
!= FLOW_STOP
|| sk
->sk_state
!= TCP_ESTABLISHED
)))
1298 return -ERESTARTSYS
;
1300 /* Check if we are still connected */
1301 if (sk
->sk_state
!= TCP_ESTABLISHED
)
1304 /* Check that we don't send out to big frames */
1305 if (len
> self
->max_data_size
) {
1306 IRDA_DEBUG(2, "%s(), Chopping frame from %zd to %d bytes!\n",
1307 __FUNCTION__
, len
, self
->max_data_size
);
1308 len
= self
->max_data_size
;
1311 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
+ 16,
1312 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1316 skb_reserve(skb
, self
->max_header_size
+ 16);
1318 asmptr
= skb
->h
.raw
= skb_put(skb
, len
);
1319 err
= memcpy_fromiovec(asmptr
, msg
->msg_iov
, len
);
1326 * Just send the message to TinyTP, and let it deal with possible
1327 * errors. No need to duplicate all that here
1329 err
= irttp_data_request(self
->tsap
, skb
);
1331 IRDA_DEBUG(0, "%s(), err=%d\n", __FUNCTION__
, err
);
1334 /* Tell client how much data we actually sent */
1339 * Function irda_recvmsg_dgram (iocb, sock, msg, size, flags)
1341 * Try to receive message and copy it to user. The frame is discarded
1342 * after being read, regardless of how much the user actually read
1344 static int irda_recvmsg_dgram(struct kiocb
*iocb
, struct socket
*sock
,
1345 struct msghdr
*msg
, size_t size
, int flags
)
1347 struct sock
*sk
= sock
->sk
;
1348 struct irda_sock
*self
= irda_sk(sk
);
1349 struct sk_buff
*skb
;
1353 IRDA_DEBUG(4, "%s()\n", __FUNCTION__
);
1355 IRDA_ASSERT(self
!= NULL
, return -1;);
1357 skb
= skb_recv_datagram(sk
, flags
& ~MSG_DONTWAIT
,
1358 flags
& MSG_DONTWAIT
, &err
);
1362 skb
->h
.raw
= skb
->data
;
1365 if (copied
> size
) {
1366 IRDA_DEBUG(2, "%s(), Received truncated frame (%zd < %zd)!\n",
1367 __FUNCTION__
, copied
, size
);
1369 msg
->msg_flags
|= MSG_TRUNC
;
1371 skb_copy_datagram_iovec(skb
, 0, msg
->msg_iov
, copied
);
1373 skb_free_datagram(sk
, skb
);
1376 * Check if we have previously stopped IrTTP and we know
1377 * have more free space in our rx_queue. If so tell IrTTP
1378 * to start delivering frames again before our rx_queue gets
1381 if (self
->rx_flow
== FLOW_STOP
) {
1382 if ((atomic_read(&sk
->sk_rmem_alloc
) << 2) <= sk
->sk_rcvbuf
) {
1383 IRDA_DEBUG(2, "%s(), Starting IrTTP\n", __FUNCTION__
);
1384 self
->rx_flow
= FLOW_START
;
1385 irttp_flow_request(self
->tsap
, FLOW_START
);
1393 * Function irda_recvmsg_stream (iocb, sock, msg, size, flags)
1395 static int irda_recvmsg_stream(struct kiocb
*iocb
, struct socket
*sock
,
1396 struct msghdr
*msg
, size_t size
, int flags
)
1398 struct sock
*sk
= sock
->sk
;
1399 struct irda_sock
*self
= irda_sk(sk
);
1400 int noblock
= flags
& MSG_DONTWAIT
;
1403 DECLARE_WAITQUEUE(waitq
, current
);
1405 IRDA_DEBUG(3, "%s()\n", __FUNCTION__
);
1407 IRDA_ASSERT(self
!= NULL
, return -1;);
1409 if (sock
->flags
& __SO_ACCEPTCON
)
1412 if (flags
& MSG_OOB
)
1415 if (flags
& MSG_WAITALL
)
1418 msg
->msg_namelen
= 0;
1422 struct sk_buff
*skb
= skb_dequeue(&sk
->sk_receive_queue
);
1427 if (copied
>= target
)
1430 /* The following code is a cut'n'paste of the
1431 * wait_event_interruptible() macro.
1432 * We don't us the macro because the test condition
1433 * is messy. - Jean II */
1434 set_bit(SOCK_ASYNC_WAITDATA
, &sk
->sk_socket
->flags
);
1435 add_wait_queue(sk
->sk_sleep
, &waitq
);
1436 set_current_state(TASK_INTERRUPTIBLE
);
1439 * POSIX 1003.1g mandates this order.
1441 ret
= sock_error(sk
);
1444 else if (sk
->sk_shutdown
& RCV_SHUTDOWN
)
1448 else if (signal_pending(current
))
1450 else if (skb_peek(&sk
->sk_receive_queue
) == NULL
)
1451 /* Wait process until data arrives */
1454 current
->state
= TASK_RUNNING
;
1455 remove_wait_queue(sk
->sk_sleep
, &waitq
);
1456 clear_bit(SOCK_ASYNC_WAITDATA
, &sk
->sk_socket
->flags
);
1460 if (sk
->sk_shutdown
& RCV_SHUTDOWN
)
1466 chunk
= min_t(unsigned int, skb
->len
, size
);
1467 if (memcpy_toiovec(msg
->msg_iov
, skb
->data
, chunk
)) {
1468 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1476 /* Mark read part of skb as used */
1477 if (!(flags
& MSG_PEEK
)) {
1478 skb_pull(skb
, chunk
);
1480 /* put the skb back if we didn't use it up.. */
1482 IRDA_DEBUG(1, "%s(), back on q!\n",
1484 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1490 IRDA_DEBUG(0, "%s() questionable!?\n", __FUNCTION__
);
1492 /* put message back and return */
1493 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1499 * Check if we have previously stopped IrTTP and we know
1500 * have more free space in our rx_queue. If so tell IrTTP
1501 * to start delivering frames again before our rx_queue gets
1504 if (self
->rx_flow
== FLOW_STOP
) {
1505 if ((atomic_read(&sk
->sk_rmem_alloc
) << 2) <= sk
->sk_rcvbuf
) {
1506 IRDA_DEBUG(2, "%s(), Starting IrTTP\n", __FUNCTION__
);
1507 self
->rx_flow
= FLOW_START
;
1508 irttp_flow_request(self
->tsap
, FLOW_START
);
1516 * Function irda_sendmsg_dgram (iocb, sock, msg, len)
1518 * Send message down to TinyTP for the unreliable sequenced
1522 static int irda_sendmsg_dgram(struct kiocb
*iocb
, struct socket
*sock
,
1523 struct msghdr
*msg
, size_t len
)
1525 struct sock
*sk
= sock
->sk
;
1526 struct irda_sock
*self
;
1527 struct sk_buff
*skb
;
1528 unsigned char *asmptr
;
1531 IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__
, len
);
1533 if (msg
->msg_flags
& ~(MSG_DONTWAIT
|MSG_CMSG_COMPAT
))
1536 if (sk
->sk_shutdown
& SEND_SHUTDOWN
) {
1537 send_sig(SIGPIPE
, current
, 0);
1541 if (sk
->sk_state
!= TCP_ESTABLISHED
)
1545 IRDA_ASSERT(self
!= NULL
, return -1;);
1548 * Check that we don't send out to big frames. This is an unreliable
1549 * service, so we have no fragmentation and no coalescence
1551 if (len
> self
->max_data_size
) {
1552 IRDA_DEBUG(0, "%s(), Warning to much data! "
1553 "Chopping frame from %zd to %d bytes!\n",
1554 __FUNCTION__
, len
, self
->max_data_size
);
1555 len
= self
->max_data_size
;
1558 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
,
1559 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1563 skb_reserve(skb
, self
->max_header_size
);
1565 IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__
);
1566 asmptr
= skb
->h
.raw
= skb_put(skb
, len
);
1567 err
= memcpy_fromiovec(asmptr
, msg
->msg_iov
, len
);
1574 * Just send the message to TinyTP, and let it deal with possible
1575 * errors. No need to duplicate all that here
1577 err
= irttp_udata_request(self
->tsap
, skb
);
1579 IRDA_DEBUG(0, "%s(), err=%d\n", __FUNCTION__
, err
);
1586 * Function irda_sendmsg_ultra (iocb, sock, msg, len)
1588 * Send message down to IrLMP for the unreliable Ultra
1591 #ifdef CONFIG_IRDA_ULTRA
1592 static int irda_sendmsg_ultra(struct kiocb
*iocb
, struct socket
*sock
,
1593 struct msghdr
*msg
, size_t len
)
1595 struct sock
*sk
= sock
->sk
;
1596 struct irda_sock
*self
;
1599 struct sk_buff
*skb
;
1600 unsigned char *asmptr
;
1603 IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__
, len
);
1605 if (msg
->msg_flags
& ~(MSG_DONTWAIT
|MSG_CMSG_COMPAT
))
1608 if (sk
->sk_shutdown
& SEND_SHUTDOWN
) {
1609 send_sig(SIGPIPE
, current
, 0);
1614 IRDA_ASSERT(self
!= NULL
, return -1;);
1616 /* Check if an address was specified with sendto. Jean II */
1617 if (msg
->msg_name
) {
1618 struct sockaddr_irda
*addr
= (struct sockaddr_irda
*) msg
->msg_name
;
1619 /* Check address, extract pid. Jean II */
1620 if (msg
->msg_namelen
< sizeof(*addr
))
1622 if (addr
->sir_family
!= AF_IRDA
)
1625 pid
= addr
->sir_lsap_sel
;
1627 IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __FUNCTION__
);
1631 /* Check that the socket is properly bound to an Ultra
1633 if ((self
->lsap
== NULL
) ||
1634 (sk
->sk_state
!= TCP_ESTABLISHED
)) {
1635 IRDA_DEBUG(0, "%s(), socket not bound to Ultra PID.\n",
1639 /* Use PID from socket */
1644 * Check that we don't send out to big frames. This is an unreliable
1645 * service, so we have no fragmentation and no coalescence
1647 if (len
> self
->max_data_size
) {
1648 IRDA_DEBUG(0, "%s(), Warning to much data! "
1649 "Chopping frame from %zd to %d bytes!\n",
1650 __FUNCTION__
, len
, self
->max_data_size
);
1651 len
= self
->max_data_size
;
1654 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
,
1655 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1659 skb_reserve(skb
, self
->max_header_size
);
1661 IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__
);
1662 asmptr
= skb
->h
.raw
= skb_put(skb
, len
);
1663 err
= memcpy_fromiovec(asmptr
, msg
->msg_iov
, len
);
1669 err
= irlmp_connless_data_request((bound
? self
->lsap
: NULL
),
1672 IRDA_DEBUG(0, "%s(), err=%d\n", __FUNCTION__
, err
);
1677 #endif /* CONFIG_IRDA_ULTRA */
1680 * Function irda_shutdown (sk, how)
1682 static int irda_shutdown(struct socket
*sock
, int how
)
1684 struct sock
*sk
= sock
->sk
;
1685 struct irda_sock
*self
= irda_sk(sk
);
1687 IRDA_ASSERT(self
!= NULL
, return -1;);
1689 IRDA_DEBUG(1, "%s(%p)\n", __FUNCTION__
, self
);
1691 sk
->sk_state
= TCP_CLOSE
;
1692 sk
->sk_shutdown
|= SEND_SHUTDOWN
;
1693 sk
->sk_state_change(sk
);
1696 iriap_close(self
->iriap
);
1701 irttp_disconnect_request(self
->tsap
, NULL
, P_NORMAL
);
1702 irttp_close_tsap(self
->tsap
);
1706 /* A few cleanup so the socket look as good as new... */
1707 self
->rx_flow
= self
->tx_flow
= FLOW_START
; /* needed ??? */
1708 self
->daddr
= DEV_ADDR_ANY
; /* Until we get re-connected */
1709 self
->saddr
= 0x0; /* so IrLMP assign us any link */
1715 * Function irda_poll (file, sock, wait)
1717 static unsigned int irda_poll(struct file
* file
, struct socket
*sock
,
1720 struct sock
*sk
= sock
->sk
;
1721 struct irda_sock
*self
= irda_sk(sk
);
1724 IRDA_DEBUG(4, "%s()\n", __FUNCTION__
);
1726 poll_wait(file
, sk
->sk_sleep
, wait
);
1729 /* Exceptional events? */
1732 if (sk
->sk_shutdown
& RCV_SHUTDOWN
) {
1733 IRDA_DEBUG(0, "%s(), POLLHUP\n", __FUNCTION__
);
1738 if (!skb_queue_empty(&sk
->sk_receive_queue
)) {
1739 IRDA_DEBUG(4, "Socket is readable\n");
1740 mask
|= POLLIN
| POLLRDNORM
;
1743 /* Connection-based need to check for termination and startup */
1744 switch (sk
->sk_type
) {
1746 if (sk
->sk_state
== TCP_CLOSE
) {
1747 IRDA_DEBUG(0, "%s(), POLLHUP\n", __FUNCTION__
);
1751 if (sk
->sk_state
== TCP_ESTABLISHED
) {
1752 if ((self
->tx_flow
== FLOW_START
) &&
1755 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1759 case SOCK_SEQPACKET
:
1760 if ((self
->tx_flow
== FLOW_START
) &&
1763 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1767 if (sock_writeable(sk
))
1768 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1777 * Function irda_ioctl (sock, cmd, arg)
1779 static int irda_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
1781 struct sock
*sk
= sock
->sk
;
1783 IRDA_DEBUG(4, "%s(), cmd=%#x\n", __FUNCTION__
, cmd
);
1788 amount
= sk
->sk_sndbuf
- atomic_read(&sk
->sk_wmem_alloc
);
1791 if (put_user(amount
, (unsigned int __user
*)arg
))
1797 struct sk_buff
*skb
;
1799 /* These two are safe on a single CPU system as only user tasks fiddle here */
1800 if ((skb
= skb_peek(&sk
->sk_receive_queue
)) != NULL
)
1802 if (put_user(amount
, (unsigned int __user
*)arg
))
1809 return sock_get_timestamp(sk
, (struct timeval __user
*)arg
);
1814 case SIOCGIFDSTADDR
:
1815 case SIOCSIFDSTADDR
:
1816 case SIOCGIFBRDADDR
:
1817 case SIOCSIFBRDADDR
:
1818 case SIOCGIFNETMASK
:
1819 case SIOCSIFNETMASK
:
1824 IRDA_DEBUG(1, "%s(), doing device ioctl!\n", __FUNCTION__
);
1825 return -ENOIOCTLCMD
;
1833 * Function irda_setsockopt (sock, level, optname, optval, optlen)
1835 * Set some options for the socket
1838 static int irda_setsockopt(struct socket
*sock
, int level
, int optname
,
1839 char __user
*optval
, int optlen
)
1841 struct sock
*sk
= sock
->sk
;
1842 struct irda_sock
*self
= irda_sk(sk
);
1843 struct irda_ias_set
*ias_opt
;
1844 struct ias_object
*ias_obj
;
1845 struct ias_attrib
* ias_attr
; /* Attribute in IAS object */
1848 IRDA_ASSERT(self
!= NULL
, return -1;);
1850 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
1852 if (level
!= SOL_IRLMP
)
1853 return -ENOPROTOOPT
;
1857 /* The user want to add an attribute to an existing IAS object
1858 * (in the IAS database) or to create a new object with this
1860 * We first query IAS to know if the object exist, and then
1861 * create the right attribute...
1864 if (optlen
!= sizeof(struct irda_ias_set
))
1867 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
1868 if (ias_opt
== NULL
)
1871 /* Copy query to the driver. */
1872 if (copy_from_user(ias_opt
, optval
, optlen
)) {
1877 /* Find the object we target.
1878 * If the user gives us an empty string, we use the object
1879 * associated with this socket. This will workaround
1880 * duplicated class name - Jean II */
1881 if(ias_opt
->irda_class_name
[0] == '\0') {
1882 if(self
->ias_obj
== NULL
) {
1886 ias_obj
= self
->ias_obj
;
1888 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
1890 /* Only ROOT can mess with the global IAS database.
1891 * Users can only add attributes to the object associated
1892 * with the socket they own - Jean II */
1893 if((!capable(CAP_NET_ADMIN
)) &&
1894 ((ias_obj
== NULL
) || (ias_obj
!= self
->ias_obj
))) {
1899 /* If the object doesn't exist, create it */
1900 if(ias_obj
== (struct ias_object
*) NULL
) {
1901 /* Create a new object */
1902 ias_obj
= irias_new_object(ias_opt
->irda_class_name
,
1906 /* Do we have the attribute already ? */
1907 if(irias_find_attrib(ias_obj
, ias_opt
->irda_attrib_name
)) {
1912 /* Look at the type */
1913 switch(ias_opt
->irda_attrib_type
) {
1915 /* Add an integer attribute */
1916 irias_add_integer_attrib(
1918 ias_opt
->irda_attrib_name
,
1919 ias_opt
->attribute
.irda_attrib_int
,
1924 if(ias_opt
->attribute
.irda_attrib_octet_seq
.len
>
1925 IAS_MAX_OCTET_STRING
) {
1929 /* Add an octet sequence attribute */
1930 irias_add_octseq_attrib(
1932 ias_opt
->irda_attrib_name
,
1933 ias_opt
->attribute
.irda_attrib_octet_seq
.octet_seq
,
1934 ias_opt
->attribute
.irda_attrib_octet_seq
.len
,
1938 /* Should check charset & co */
1940 /* The length is encoded in a __u8, and
1941 * IAS_MAX_STRING == 256, so there is no way
1942 * userspace can pass us a string too large.
1944 /* NULL terminate the string (avoid troubles) */
1945 ias_opt
->attribute
.irda_attrib_string
.string
[ias_opt
->attribute
.irda_attrib_string
.len
] = '\0';
1946 /* Add a string attribute */
1947 irias_add_string_attrib(
1949 ias_opt
->irda_attrib_name
,
1950 ias_opt
->attribute
.irda_attrib_string
.string
,
1957 irias_insert_object(ias_obj
);
1961 /* The user want to delete an object from our local IAS
1962 * database. We just need to query the IAS, check is the
1963 * object is not owned by the kernel and delete it.
1966 if (optlen
!= sizeof(struct irda_ias_set
))
1969 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
1970 if (ias_opt
== NULL
)
1973 /* Copy query to the driver. */
1974 if (copy_from_user(ias_opt
, optval
, optlen
)) {
1979 /* Find the object we target.
1980 * If the user gives us an empty string, we use the object
1981 * associated with this socket. This will workaround
1982 * duplicated class name - Jean II */
1983 if(ias_opt
->irda_class_name
[0] == '\0')
1984 ias_obj
= self
->ias_obj
;
1986 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
1987 if(ias_obj
== (struct ias_object
*) NULL
) {
1992 /* Only ROOT can mess with the global IAS database.
1993 * Users can only del attributes from the object associated
1994 * with the socket they own - Jean II */
1995 if((!capable(CAP_NET_ADMIN
)) &&
1996 ((ias_obj
== NULL
) || (ias_obj
!= self
->ias_obj
))) {
2001 /* Find the attribute (in the object) we target */
2002 ias_attr
= irias_find_attrib(ias_obj
,
2003 ias_opt
->irda_attrib_name
);
2004 if(ias_attr
== (struct ias_attrib
*) NULL
) {
2009 /* Check is the user space own the object */
2010 if(ias_attr
->value
->owner
!= IAS_USER_ATTR
) {
2011 IRDA_DEBUG(1, "%s(), attempting to delete a kernel attribute\n", __FUNCTION__
);
2016 /* Remove the attribute (and maybe the object) */
2017 irias_delete_attrib(ias_obj
, ias_attr
, 1);
2020 case IRLMP_MAX_SDU_SIZE
:
2021 if (optlen
< sizeof(int))
2024 if (get_user(opt
, (int __user
*)optval
))
2027 /* Only possible for a seqpacket service (TTP with SAR) */
2028 if (sk
->sk_type
!= SOCK_SEQPACKET
) {
2029 IRDA_DEBUG(2, "%s(), setting max_sdu_size = %d\n",
2031 self
->max_sdu_size_rx
= opt
;
2033 IRDA_WARNING("%s: not allowed to set MAXSDUSIZE for this socket type!\n",
2035 return -ENOPROTOOPT
;
2038 case IRLMP_HINTS_SET
:
2039 if (optlen
< sizeof(int))
2042 /* The input is really a (__u8 hints[2]), easier as an int */
2043 if (get_user(opt
, (int __user
*)optval
))
2046 /* Unregister any old registration */
2048 irlmp_unregister_service(self
->skey
);
2050 self
->skey
= irlmp_register_service((__u16
) opt
);
2052 case IRLMP_HINT_MASK_SET
:
2053 /* As opposed to the previous case which set the hint bits
2054 * that we advertise, this one set the filter we use when
2055 * making a discovery (nodes which don't match any hint
2056 * bit in the mask are not reported).
2058 if (optlen
< sizeof(int))
2061 /* The input is really a (__u8 hints[2]), easier as an int */
2062 if (get_user(opt
, (int __user
*)optval
))
2065 /* Set the new hint mask */
2066 self
->mask
.word
= (__u16
) opt
;
2067 /* Mask out extension bits */
2068 self
->mask
.word
&= 0x7f7f;
2069 /* Check if no bits */
2070 if(!self
->mask
.word
)
2071 self
->mask
.word
= 0xFFFF;
2075 return -ENOPROTOOPT
;
2081 * Function irda_extract_ias_value(ias_opt, ias_value)
2083 * Translate internal IAS value structure to the user space representation
2085 * The external representation of IAS values, as we exchange them with
2086 * user space program is quite different from the internal representation,
2087 * as stored in the IAS database (because we need a flat structure for
2088 * crossing kernel boundary).
2089 * This function transform the former in the latter. We also check
2090 * that the value type is valid.
2092 static int irda_extract_ias_value(struct irda_ias_set
*ias_opt
,
2093 struct ias_value
*ias_value
)
2095 /* Look at the type */
2096 switch (ias_value
->type
) {
2098 /* Copy the integer */
2099 ias_opt
->attribute
.irda_attrib_int
= ias_value
->t
.integer
;
2103 ias_opt
->attribute
.irda_attrib_octet_seq
.len
= ias_value
->len
;
2105 memcpy(ias_opt
->attribute
.irda_attrib_octet_seq
.octet_seq
,
2106 ias_value
->t
.oct_seq
, ias_value
->len
);
2110 ias_opt
->attribute
.irda_attrib_string
.len
= ias_value
->len
;
2111 ias_opt
->attribute
.irda_attrib_string
.charset
= ias_value
->charset
;
2113 memcpy(ias_opt
->attribute
.irda_attrib_string
.string
,
2114 ias_value
->t
.string
, ias_value
->len
);
2115 /* NULL terminate the string (avoid troubles) */
2116 ias_opt
->attribute
.irda_attrib_string
.string
[ias_value
->len
] = '\0';
2123 /* Copy type over */
2124 ias_opt
->irda_attrib_type
= ias_value
->type
;
2130 * Function irda_getsockopt (sock, level, optname, optval, optlen)
2132 static int irda_getsockopt(struct socket
*sock
, int level
, int optname
,
2133 char __user
*optval
, int __user
*optlen
)
2135 struct sock
*sk
= sock
->sk
;
2136 struct irda_sock
*self
= irda_sk(sk
);
2137 struct irda_device_list list
;
2138 struct irda_device_info
*discoveries
;
2139 struct irda_ias_set
* ias_opt
; /* IAS get/query params */
2140 struct ias_object
* ias_obj
; /* Object in IAS */
2141 struct ias_attrib
* ias_attr
; /* Attribute in IAS object */
2142 int daddr
= DEV_ADDR_ANY
; /* Dest address for IAS queries */
2148 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
2150 if (level
!= SOL_IRLMP
)
2151 return -ENOPROTOOPT
;
2153 if (get_user(len
, optlen
))
2160 case IRLMP_ENUMDEVICES
:
2161 /* Ask lmp for the current discovery log */
2162 discoveries
= irlmp_get_discoveries(&list
.len
, self
->mask
.word
,
2164 /* Check if the we got some results */
2165 if (discoveries
== NULL
)
2166 return -EAGAIN
; /* Didn't find any devices */
2169 /* Write total list length back to client */
2170 if (copy_to_user(optval
, &list
,
2171 sizeof(struct irda_device_list
) -
2172 sizeof(struct irda_device_info
)))
2175 /* Offset to first device entry */
2176 offset
= sizeof(struct irda_device_list
) -
2177 sizeof(struct irda_device_info
);
2179 /* Copy the list itself - watch for overflow */
2185 total
= offset
+ (list
.len
* sizeof(struct irda_device_info
));
2188 if (copy_to_user(optval
+offset
, discoveries
, total
- offset
))
2191 /* Write total number of bytes used back to client */
2192 if (put_user(total
, optlen
))
2195 /* Free up our buffer */
2200 case IRLMP_MAX_SDU_SIZE
:
2201 val
= self
->max_data_size
;
2203 if (put_user(len
, optlen
))
2206 if (copy_to_user(optval
, &val
, len
))
2210 /* The user want an object from our local IAS database.
2211 * We just need to query the IAS and return the value
2214 /* Check that the user has allocated the right space for us */
2215 if (len
!= sizeof(struct irda_ias_set
))
2218 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
2219 if (ias_opt
== NULL
)
2222 /* Copy query to the driver. */
2223 if (copy_from_user(ias_opt
, optval
, len
)) {
2228 /* Find the object we target.
2229 * If the user gives us an empty string, we use the object
2230 * associated with this socket. This will workaround
2231 * duplicated class name - Jean II */
2232 if(ias_opt
->irda_class_name
[0] == '\0')
2233 ias_obj
= self
->ias_obj
;
2235 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
2236 if(ias_obj
== (struct ias_object
*) NULL
) {
2241 /* Find the attribute (in the object) we target */
2242 ias_attr
= irias_find_attrib(ias_obj
,
2243 ias_opt
->irda_attrib_name
);
2244 if(ias_attr
== (struct ias_attrib
*) NULL
) {
2249 /* Translate from internal to user structure */
2250 err
= irda_extract_ias_value(ias_opt
, ias_attr
->value
);
2256 /* Copy reply to the user */
2257 if (copy_to_user(optval
, ias_opt
,
2258 sizeof(struct irda_ias_set
))) {
2262 /* Note : don't need to put optlen, we checked it */
2265 case IRLMP_IAS_QUERY
:
2266 /* The user want an object from a remote IAS database.
2267 * We need to use IAP to query the remote database and
2268 * then wait for the answer to come back. */
2270 /* Check that the user has allocated the right space for us */
2271 if (len
!= sizeof(struct irda_ias_set
))
2274 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
2275 if (ias_opt
== NULL
)
2278 /* Copy query to the driver. */
2279 if (copy_from_user(ias_opt
, optval
, len
)) {
2284 /* At this point, there are two cases...
2285 * 1) the socket is connected - that's the easy case, we
2286 * just query the device we are connected to...
2287 * 2) the socket is not connected - the user doesn't want
2288 * to connect and/or may not have a valid service name
2289 * (so can't create a fake connection). In this case,
2290 * we assume that the user pass us a valid destination
2291 * address in the requesting structure...
2293 if(self
->daddr
!= DEV_ADDR_ANY
) {
2294 /* We are connected - reuse known daddr */
2295 daddr
= self
->daddr
;
2297 /* We are not connected, we must specify a valid
2298 * destination address */
2299 daddr
= ias_opt
->daddr
;
2300 if((!daddr
) || (daddr
== DEV_ADDR_ANY
)) {
2306 /* Check that we can proceed with IAP */
2308 IRDA_WARNING("%s: busy with a previous query\n",
2314 self
->iriap
= iriap_open(LSAP_ANY
, IAS_CLIENT
, self
,
2315 irda_getvalue_confirm
);
2317 if (self
->iriap
== NULL
) {
2322 /* Treat unexpected wakeup as disconnect */
2323 self
->errno
= -EHOSTUNREACH
;
2325 /* Query remote LM-IAS */
2326 iriap_getvaluebyclass_request(self
->iriap
,
2328 ias_opt
->irda_class_name
,
2329 ias_opt
->irda_attrib_name
);
2331 /* Wait for answer, if not yet finished (or failed) */
2332 if (wait_event_interruptible(self
->query_wait
,
2333 (self
->iriap
== NULL
))) {
2334 /* pending request uses copy of ias_opt-content
2335 * we can free it regardless! */
2337 /* Treat signals as disconnect */
2338 return -EHOSTUNREACH
;
2341 /* Check what happened */
2345 /* Requested object/attribute doesn't exist */
2346 if((self
->errno
== IAS_CLASS_UNKNOWN
) ||
2347 (self
->errno
== IAS_ATTRIB_UNKNOWN
))
2348 return (-EADDRNOTAVAIL
);
2350 return (-EHOSTUNREACH
);
2353 /* Translate from internal to user structure */
2354 err
= irda_extract_ias_value(ias_opt
, self
->ias_result
);
2355 if (self
->ias_result
)
2356 irias_delete_value(self
->ias_result
);
2362 /* Copy reply to the user */
2363 if (copy_to_user(optval
, ias_opt
,
2364 sizeof(struct irda_ias_set
))) {
2368 /* Note : don't need to put optlen, we checked it */
2371 case IRLMP_WAITDEVICE
:
2372 /* This function is just another way of seeing life ;-)
2373 * IRLMP_ENUMDEVICES assumes that you have a static network,
2374 * and that you just want to pick one of the devices present.
2375 * On the other hand, in here we assume that no device is
2376 * present and that at some point in the future a device will
2377 * come into range. When this device arrive, we just wake
2378 * up the caller, so that he has time to connect to it before
2379 * the device goes away...
2380 * Note : once the node has been discovered for more than a
2381 * few second, it won't trigger this function, unless it
2382 * goes away and come back changes its hint bits (so we
2383 * might call it IRLMP_WAITNEWDEVICE).
2386 /* Check that the user is passing us an int */
2387 if (len
!= sizeof(int))
2389 /* Get timeout in ms (max time we block the caller) */
2390 if (get_user(val
, (int __user
*)optval
))
2393 /* Tell IrLMP we want to be notified */
2394 irlmp_update_client(self
->ckey
, self
->mask
.word
,
2395 irda_selective_discovery_indication
,
2396 NULL
, (void *) self
);
2398 /* Do some discovery (and also return cached results) */
2399 irlmp_discovery_request(self
->nslots
);
2401 /* Wait until a node is discovered */
2402 if (!self
->cachedaddr
) {
2405 IRDA_DEBUG(1, "%s(), nothing discovered yet, going to sleep...\n", __FUNCTION__
);
2407 /* Set watchdog timer to expire in <val> ms. */
2409 init_timer(&self
->watchdog
);
2410 self
->watchdog
.function
= irda_discovery_timeout
;
2411 self
->watchdog
.data
= (unsigned long) self
;
2412 self
->watchdog
.expires
= jiffies
+ (val
* HZ
/1000);
2413 add_timer(&(self
->watchdog
));
2415 /* Wait for IR-LMP to call us back */
2416 __wait_event_interruptible(self
->query_wait
,
2417 (self
->cachedaddr
!= 0 || self
->errno
== -ETIME
),
2420 /* If watchdog is still activated, kill it! */
2421 if(timer_pending(&(self
->watchdog
)))
2422 del_timer(&(self
->watchdog
));
2424 IRDA_DEBUG(1, "%s(), ...waking up !\n", __FUNCTION__
);
2430 IRDA_DEBUG(1, "%s(), found immediately !\n",
2433 /* Tell IrLMP that we have been notified */
2434 irlmp_update_client(self
->ckey
, self
->mask
.word
,
2437 /* Check if the we got some results */
2438 if (!self
->cachedaddr
)
2439 return -EAGAIN
; /* Didn't find any devices */
2440 daddr
= self
->cachedaddr
;
2442 self
->cachedaddr
= 0;
2444 /* We return the daddr of the device that trigger the
2445 * wakeup. As irlmp pass us only the new devices, we
2446 * are sure that it's not an old device.
2447 * If the user want more details, he should query
2448 * the whole discovery log and pick one device...
2450 if (put_user(daddr
, (int __user
*)optval
))
2455 return -ENOPROTOOPT
;
2461 static struct net_proto_family irda_family_ops
= {
2463 .create
= irda_create
,
2464 .owner
= THIS_MODULE
,
2467 static const struct proto_ops
SOCKOPS_WRAPPED(irda_stream_ops
) = {
2469 .owner
= THIS_MODULE
,
2470 .release
= irda_release
,
2472 .connect
= irda_connect
,
2473 .socketpair
= sock_no_socketpair
,
2474 .accept
= irda_accept
,
2475 .getname
= irda_getname
,
2477 .ioctl
= irda_ioctl
,
2478 .listen
= irda_listen
,
2479 .shutdown
= irda_shutdown
,
2480 .setsockopt
= irda_setsockopt
,
2481 .getsockopt
= irda_getsockopt
,
2482 .sendmsg
= irda_sendmsg
,
2483 .recvmsg
= irda_recvmsg_stream
,
2484 .mmap
= sock_no_mmap
,
2485 .sendpage
= sock_no_sendpage
,
2488 static const struct proto_ops
SOCKOPS_WRAPPED(irda_seqpacket_ops
) = {
2490 .owner
= THIS_MODULE
,
2491 .release
= irda_release
,
2493 .connect
= irda_connect
,
2494 .socketpair
= sock_no_socketpair
,
2495 .accept
= irda_accept
,
2496 .getname
= irda_getname
,
2497 .poll
= datagram_poll
,
2498 .ioctl
= irda_ioctl
,
2499 .listen
= irda_listen
,
2500 .shutdown
= irda_shutdown
,
2501 .setsockopt
= irda_setsockopt
,
2502 .getsockopt
= irda_getsockopt
,
2503 .sendmsg
= irda_sendmsg
,
2504 .recvmsg
= irda_recvmsg_dgram
,
2505 .mmap
= sock_no_mmap
,
2506 .sendpage
= sock_no_sendpage
,
2509 static const struct proto_ops
SOCKOPS_WRAPPED(irda_dgram_ops
) = {
2511 .owner
= THIS_MODULE
,
2512 .release
= irda_release
,
2514 .connect
= irda_connect
,
2515 .socketpair
= sock_no_socketpair
,
2516 .accept
= irda_accept
,
2517 .getname
= irda_getname
,
2518 .poll
= datagram_poll
,
2519 .ioctl
= irda_ioctl
,
2520 .listen
= irda_listen
,
2521 .shutdown
= irda_shutdown
,
2522 .setsockopt
= irda_setsockopt
,
2523 .getsockopt
= irda_getsockopt
,
2524 .sendmsg
= irda_sendmsg_dgram
,
2525 .recvmsg
= irda_recvmsg_dgram
,
2526 .mmap
= sock_no_mmap
,
2527 .sendpage
= sock_no_sendpage
,
2530 #ifdef CONFIG_IRDA_ULTRA
2531 static const struct proto_ops
SOCKOPS_WRAPPED(irda_ultra_ops
) = {
2533 .owner
= THIS_MODULE
,
2534 .release
= irda_release
,
2536 .connect
= sock_no_connect
,
2537 .socketpair
= sock_no_socketpair
,
2538 .accept
= sock_no_accept
,
2539 .getname
= irda_getname
,
2540 .poll
= datagram_poll
,
2541 .ioctl
= irda_ioctl
,
2542 .listen
= sock_no_listen
,
2543 .shutdown
= irda_shutdown
,
2544 .setsockopt
= irda_setsockopt
,
2545 .getsockopt
= irda_getsockopt
,
2546 .sendmsg
= irda_sendmsg_ultra
,
2547 .recvmsg
= irda_recvmsg_dgram
,
2548 .mmap
= sock_no_mmap
,
2549 .sendpage
= sock_no_sendpage
,
2551 #endif /* CONFIG_IRDA_ULTRA */
2553 #include <linux/smp_lock.h>
2554 SOCKOPS_WRAP(irda_stream
, PF_IRDA
);
2555 SOCKOPS_WRAP(irda_seqpacket
, PF_IRDA
);
2556 SOCKOPS_WRAP(irda_dgram
, PF_IRDA
);
2557 #ifdef CONFIG_IRDA_ULTRA
2558 SOCKOPS_WRAP(irda_ultra
, PF_IRDA
);
2559 #endif /* CONFIG_IRDA_ULTRA */
2562 * Function irsock_init (pro)
2564 * Initialize IrDA protocol
2567 int __init
irsock_init(void)
2569 int rc
= proto_register(&irda_proto
, 0);
2572 rc
= sock_register(&irda_family_ops
);
2578 * Function irsock_cleanup (void)
2580 * Remove IrDA protocol
2583 void __exit
irsock_cleanup(void)
2585 sock_unregister(PF_IRDA
);
2586 proto_unregister(&irda_proto
);