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/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 net
*net
, 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__
);
93 err
= sock_queue_rcv_skb(sk
, skb
);
95 IRDA_DEBUG(1, "%s(), error: no more mem!\n", __FUNCTION__
);
96 self
->rx_flow
= FLOW_STOP
;
98 /* When we return error, TTP will need to requeue the skb */
106 * Function irda_disconnect_indication (instance, sap, reason, skb)
108 * Connection has been closed. Check reason to find out why
111 static void irda_disconnect_indication(void *instance
, void *sap
,
112 LM_REASON reason
, struct sk_buff
*skb
)
114 struct irda_sock
*self
;
119 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
121 /* Don't care about it, but let's not leak it */
127 IRDA_DEBUG(0, "%s(%p) : BUG : sk is NULL\n",
132 /* 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_shutdown
|= SEND_SHUTDOWN
;
138 sk
->sk_state_change(sk
);
141 * If we leave it open, IrLMP put it back into the list of
142 * unconnected LSAPs. The problem is that any incoming request
143 * can then be matched to this socket (and it will be, because
144 * it is at the head of the list). This would prevent any
145 * listening socket waiting on the same TSAP to get those
146 * requests. Some apps forget to close sockets, or hang to it
147 * a bit too long, so we may stay in this dead state long
148 * enough to be noticed...
149 * Note : all socket function do check sk->sk_state, so we are
154 irttp_close_tsap(self
->tsap
);
160 /* Note : once we are there, there is not much you want to do
161 * with the socket anymore, apart from closing it.
162 * For example, bind() and connect() won't reset sk->sk_err,
163 * sk->sk_shutdown and sk->sk_flags to valid values...
169 * Function irda_connect_confirm (instance, sap, qos, max_sdu_size, skb)
171 * Connections has been confirmed by the remote device
174 static void irda_connect_confirm(void *instance
, void *sap
,
175 struct qos_info
*qos
,
176 __u32 max_sdu_size
, __u8 max_header_size
,
179 struct irda_sock
*self
;
184 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
193 // Should be ??? skb_queue_tail(&sk->sk_receive_queue, skb);
195 /* How much header space do we need to reserve */
196 self
->max_header_size
= max_header_size
;
198 /* IrTTP max SDU size in transmit direction */
199 self
->max_sdu_size_tx
= max_sdu_size
;
201 /* Find out what the largest chunk of data that we can transmit is */
202 switch (sk
->sk_type
) {
204 if (max_sdu_size
!= 0) {
205 IRDA_ERROR("%s: max_sdu_size must be 0\n",
209 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
212 if (max_sdu_size
== 0) {
213 IRDA_ERROR("%s: max_sdu_size cannot be 0\n",
217 self
->max_data_size
= max_sdu_size
;
220 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
223 IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __FUNCTION__
,
224 self
->max_data_size
);
226 memcpy(&self
->qos_tx
, qos
, sizeof(struct qos_info
));
228 /* We are now connected! */
229 sk
->sk_state
= TCP_ESTABLISHED
;
230 sk
->sk_state_change(sk
);
234 * Function irda_connect_indication(instance, sap, qos, max_sdu_size, userdata)
236 * Incoming connection
239 static void irda_connect_indication(void *instance
, void *sap
,
240 struct qos_info
*qos
, __u32 max_sdu_size
,
241 __u8 max_header_size
, struct sk_buff
*skb
)
243 struct irda_sock
*self
;
248 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
256 /* How much header space do we need to reserve */
257 self
->max_header_size
= max_header_size
;
259 /* IrTTP max SDU size in transmit direction */
260 self
->max_sdu_size_tx
= max_sdu_size
;
262 /* Find out what the largest chunk of data that we can transmit is */
263 switch (sk
->sk_type
) {
265 if (max_sdu_size
!= 0) {
266 IRDA_ERROR("%s: max_sdu_size must be 0\n",
271 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
274 if (max_sdu_size
== 0) {
275 IRDA_ERROR("%s: max_sdu_size cannot be 0\n",
280 self
->max_data_size
= max_sdu_size
;
283 self
->max_data_size
= irttp_get_max_seg_size(self
->tsap
);
286 IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __FUNCTION__
,
287 self
->max_data_size
);
289 memcpy(&self
->qos_tx
, qos
, sizeof(struct qos_info
));
291 skb_queue_tail(&sk
->sk_receive_queue
, skb
);
292 sk
->sk_state_change(sk
);
296 * Function irda_connect_response (handle)
298 * Accept incoming connection
301 static void irda_connect_response(struct irda_sock
*self
)
305 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
307 skb
= alloc_skb(TTP_MAX_HEADER
+ TTP_SAR_HEADER
,
310 IRDA_DEBUG(0, "%s() Unable to allocate sk_buff!\n",
315 /* Reserve space for MUX_CONTROL and LAP header */
316 skb_reserve(skb
, IRDA_MAX_HEADER
);
318 irttp_connect_response(self
->tsap
, self
->max_sdu_size_rx
, skb
);
322 * Function irda_flow_indication (instance, sap, flow)
324 * Used by TinyTP to tell us if it can accept more data or not
327 static void irda_flow_indication(void *instance
, void *sap
, LOCAL_FLOW flow
)
329 struct irda_sock
*self
;
332 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
340 IRDA_DEBUG(1, "%s(), IrTTP wants us to slow down\n",
342 self
->tx_flow
= flow
;
345 self
->tx_flow
= flow
;
346 IRDA_DEBUG(1, "%s(), IrTTP wants us to start again\n",
348 wake_up_interruptible(sk
->sk_sleep
);
351 IRDA_DEBUG(0, "%s(), Unknown flow command!\n", __FUNCTION__
);
352 /* Unknown flow command, better stop */
353 self
->tx_flow
= flow
;
359 * Function irda_getvalue_confirm (obj_id, value, priv)
361 * Got answer from remote LM-IAS, just pass object to requester...
363 * Note : duplicate from above, but we need our own version that
364 * doesn't touch the dtsap_sel and save the full value structure...
366 static void irda_getvalue_confirm(int result
, __u16 obj_id
,
367 struct ias_value
*value
, void *priv
)
369 struct irda_sock
*self
;
371 self
= (struct irda_sock
*) priv
;
373 IRDA_WARNING("%s: lost myself!\n", __FUNCTION__
);
377 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
379 /* We probably don't need to make any more queries */
380 iriap_close(self
->iriap
);
383 /* Check if request succeeded */
384 if (result
!= IAS_SUCCESS
) {
385 IRDA_DEBUG(1, "%s(), IAS query failed! (%d)\n", __FUNCTION__
,
388 self
->errno
= result
; /* We really need it later */
390 /* Wake up any processes waiting for result */
391 wake_up_interruptible(&self
->query_wait
);
396 /* Pass the object to the caller (so the caller must delete it) */
397 self
->ias_result
= value
;
400 /* Wake up any processes waiting for result */
401 wake_up_interruptible(&self
->query_wait
);
405 * Function irda_selective_discovery_indication (discovery)
407 * Got a selective discovery indication from IrLMP.
409 * IrLMP is telling us that this node is new and matching our hint bit
410 * filter. Wake up any process waiting for answer...
412 static void irda_selective_discovery_indication(discinfo_t
*discovery
,
416 struct irda_sock
*self
;
418 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
420 self
= (struct irda_sock
*) priv
;
422 IRDA_WARNING("%s: lost myself!\n", __FUNCTION__
);
426 /* Pass parameter to the caller */
427 self
->cachedaddr
= discovery
->daddr
;
429 /* Wake up process if its waiting for device to be discovered */
430 wake_up_interruptible(&self
->query_wait
);
434 * Function irda_discovery_timeout (priv)
436 * Timeout in the selective discovery process
438 * We were waiting for a node to be discovered, but nothing has come up
439 * so far. Wake up the user and tell him that we failed...
441 static void irda_discovery_timeout(u_long priv
)
443 struct irda_sock
*self
;
445 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
447 self
= (struct irda_sock
*) priv
;
448 BUG_ON(self
== NULL
);
450 /* Nothing for the caller */
451 self
->cachelog
= NULL
;
452 self
->cachedaddr
= 0;
453 self
->errno
= -ETIME
;
455 /* Wake up process if its still waiting... */
456 wake_up_interruptible(&self
->query_wait
);
460 * Function irda_open_tsap (self)
462 * Open local Transport Service Access Point (TSAP)
465 static int irda_open_tsap(struct irda_sock
*self
, __u8 tsap_sel
, char *name
)
470 IRDA_WARNING("%s: busy!\n", __FUNCTION__
);
474 /* Initialize callbacks to be used by the IrDA stack */
475 irda_notify_init(¬ify
);
476 notify
.connect_confirm
= irda_connect_confirm
;
477 notify
.connect_indication
= irda_connect_indication
;
478 notify
.disconnect_indication
= irda_disconnect_indication
;
479 notify
.data_indication
= irda_data_indication
;
480 notify
.udata_indication
= irda_data_indication
;
481 notify
.flow_indication
= irda_flow_indication
;
482 notify
.instance
= self
;
483 strncpy(notify
.name
, name
, NOTIFY_MAX_NAME
);
485 self
->tsap
= irttp_open_tsap(tsap_sel
, DEFAULT_INITIAL_CREDIT
,
487 if (self
->tsap
== NULL
) {
488 IRDA_DEBUG(0, "%s(), Unable to allocate TSAP!\n",
492 /* Remember which TSAP selector we actually got */
493 self
->stsap_sel
= self
->tsap
->stsap_sel
;
499 * Function irda_open_lsap (self)
501 * Open local Link Service Access Point (LSAP). Used for opening Ultra
504 #ifdef CONFIG_IRDA_ULTRA
505 static int irda_open_lsap(struct irda_sock
*self
, int pid
)
510 IRDA_WARNING("%s(), busy!\n", __FUNCTION__
);
514 /* Initialize callbacks to be used by the IrDA stack */
515 irda_notify_init(¬ify
);
516 notify
.udata_indication
= irda_data_indication
;
517 notify
.instance
= self
;
518 strncpy(notify
.name
, "Ultra", NOTIFY_MAX_NAME
);
520 self
->lsap
= irlmp_open_lsap(LSAP_CONNLESS
, ¬ify
, pid
);
521 if (self
->lsap
== NULL
) {
522 IRDA_DEBUG( 0, "%s(), Unable to allocate LSAP!\n", __FUNCTION__
);
528 #endif /* CONFIG_IRDA_ULTRA */
531 * Function irda_find_lsap_sel (self, name)
533 * Try to lookup LSAP selector in remote LM-IAS
535 * Basically, we start a IAP query, and then go to sleep. When the query
536 * return, irda_getvalue_confirm will wake us up, and we can examine the
537 * result of the query...
538 * Note that in some case, the query fail even before we go to sleep,
539 * creating some races...
541 static int irda_find_lsap_sel(struct irda_sock
*self
, char *name
)
543 IRDA_DEBUG(2, "%s(%p, %s)\n", __FUNCTION__
, self
, name
);
546 IRDA_WARNING("%s(): busy with a previous query\n",
551 self
->iriap
= iriap_open(LSAP_ANY
, IAS_CLIENT
, self
,
552 irda_getvalue_confirm
);
553 if(self
->iriap
== NULL
)
556 /* Treat unexpected wakeup as disconnect */
557 self
->errno
= -EHOSTUNREACH
;
559 /* Query remote LM-IAS */
560 iriap_getvaluebyclass_request(self
->iriap
, self
->saddr
, self
->daddr
,
561 name
, "IrDA:TinyTP:LsapSel");
563 /* Wait for answer, if not yet finished (or failed) */
564 if (wait_event_interruptible(self
->query_wait
, (self
->iriap
==NULL
)))
565 /* Treat signals as disconnect */
566 return -EHOSTUNREACH
;
568 /* Check what happened */
571 /* Requested object/attribute doesn't exist */
572 if((self
->errno
== IAS_CLASS_UNKNOWN
) ||
573 (self
->errno
== IAS_ATTRIB_UNKNOWN
))
574 return (-EADDRNOTAVAIL
);
576 return (-EHOSTUNREACH
);
579 /* Get the remote TSAP selector */
580 switch (self
->ias_result
->type
) {
582 IRDA_DEBUG(4, "%s() int=%d\n",
583 __FUNCTION__
, self
->ias_result
->t
.integer
);
585 if (self
->ias_result
->t
.integer
!= -1)
586 self
->dtsap_sel
= self
->ias_result
->t
.integer
;
592 IRDA_DEBUG(0, "%s(), bad type!\n", __FUNCTION__
);
595 if (self
->ias_result
)
596 irias_delete_value(self
->ias_result
);
601 return -EADDRNOTAVAIL
;
605 * Function irda_discover_daddr_and_lsap_sel (self, name)
607 * This try to find a device with the requested service.
609 * It basically look into the discovery log. For each address in the list,
610 * it queries the LM-IAS of the device to find if this device offer
611 * the requested service.
612 * If there is more than one node supporting the service, we complain
613 * to the user (it should move devices around).
614 * The, we set both the destination address and the lsap selector to point
615 * on the service on the unique device we have found.
617 * Note : this function fails if there is more than one device in range,
618 * because IrLMP doesn't disconnect the LAP when the last LSAP is closed.
619 * Moreover, we would need to wait the LAP disconnection...
621 static int irda_discover_daddr_and_lsap_sel(struct irda_sock
*self
, char *name
)
623 discinfo_t
*discoveries
; /* Copy of the discovery log */
624 int number
; /* Number of nodes in the log */
626 int err
= -ENETUNREACH
;
627 __u32 daddr
= DEV_ADDR_ANY
; /* Address we found the service on */
628 __u8 dtsap_sel
= 0x0; /* TSAP associated with it */
630 IRDA_DEBUG(2, "%s(), name=%s\n", __FUNCTION__
, name
);
632 /* Ask lmp for the current discovery log
633 * Note : we have to use irlmp_get_discoveries(), as opposed
634 * to play with the cachelog directly, because while we are
635 * making our ias query, le log might change... */
636 discoveries
= irlmp_get_discoveries(&number
, self
->mask
.word
,
638 /* Check if the we got some results */
639 if (discoveries
== NULL
)
640 return -ENETUNREACH
; /* No nodes discovered */
643 * Now, check all discovered devices (if any), and connect
644 * client only about the services that the client is
647 for(i
= 0; i
< number
; i
++) {
648 /* Try the address in the log */
649 self
->daddr
= discoveries
[i
].daddr
;
651 IRDA_DEBUG(1, "%s(), trying daddr = %08x\n",
652 __FUNCTION__
, self
->daddr
);
654 /* Query remote LM-IAS for this service */
655 err
= irda_find_lsap_sel(self
, name
);
658 /* We found the requested service */
659 if(daddr
!= DEV_ADDR_ANY
) {
660 IRDA_DEBUG(1, "%s(), discovered service ''%s'' in two different devices !!!\n",
662 self
->daddr
= DEV_ADDR_ANY
;
666 /* First time we found that one, save it ! */
668 dtsap_sel
= self
->dtsap_sel
;
671 /* Requested service simply doesn't exist on this node */
674 /* Something bad did happen :-( */
675 IRDA_DEBUG(0, "%s(), unexpected IAS query failure\n", __FUNCTION__
);
676 self
->daddr
= DEV_ADDR_ANY
;
678 return(-EHOSTUNREACH
);
682 /* Cleanup our copy of the discovery log */
685 /* Check out what we found */
686 if(daddr
== DEV_ADDR_ANY
) {
687 IRDA_DEBUG(1, "%s(), cannot discover service ''%s'' in any device !!!\n",
689 self
->daddr
= DEV_ADDR_ANY
;
690 return(-EADDRNOTAVAIL
);
693 /* Revert back to discovered device & service */
696 self
->dtsap_sel
= dtsap_sel
;
698 IRDA_DEBUG(1, "%s(), discovered requested service ''%s'' at address %08x\n",
699 __FUNCTION__
, name
, self
->daddr
);
705 * Function irda_getname (sock, uaddr, uaddr_len, peer)
707 * Return the our own, or peers socket address (sockaddr_irda)
710 static int irda_getname(struct socket
*sock
, struct sockaddr
*uaddr
,
711 int *uaddr_len
, int peer
)
713 struct sockaddr_irda saddr
;
714 struct sock
*sk
= sock
->sk
;
715 struct irda_sock
*self
= irda_sk(sk
);
718 if (sk
->sk_state
!= TCP_ESTABLISHED
)
721 saddr
.sir_family
= AF_IRDA
;
722 saddr
.sir_lsap_sel
= self
->dtsap_sel
;
723 saddr
.sir_addr
= self
->daddr
;
725 saddr
.sir_family
= AF_IRDA
;
726 saddr
.sir_lsap_sel
= self
->stsap_sel
;
727 saddr
.sir_addr
= self
->saddr
;
730 IRDA_DEBUG(1, "%s(), tsap_sel = %#x\n", __FUNCTION__
, saddr
.sir_lsap_sel
);
731 IRDA_DEBUG(1, "%s(), addr = %08x\n", __FUNCTION__
, saddr
.sir_addr
);
733 /* uaddr_len come to us uninitialised */
734 *uaddr_len
= sizeof (struct sockaddr_irda
);
735 memcpy(uaddr
, &saddr
, *uaddr_len
);
741 * Function irda_listen (sock, backlog)
743 * Just move to the listen state
746 static int irda_listen(struct socket
*sock
, int backlog
)
748 struct sock
*sk
= sock
->sk
;
750 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
752 if ((sk
->sk_type
!= SOCK_STREAM
) && (sk
->sk_type
!= SOCK_SEQPACKET
) &&
753 (sk
->sk_type
!= SOCK_DGRAM
))
756 if (sk
->sk_state
!= TCP_LISTEN
) {
757 sk
->sk_max_ack_backlog
= backlog
;
758 sk
->sk_state
= TCP_LISTEN
;
767 * Function irda_bind (sock, uaddr, addr_len)
769 * Used by servers to register their well known TSAP
772 static int irda_bind(struct socket
*sock
, struct sockaddr
*uaddr
, int addr_len
)
774 struct sock
*sk
= sock
->sk
;
775 struct sockaddr_irda
*addr
= (struct sockaddr_irda
*) uaddr
;
776 struct irda_sock
*self
= irda_sk(sk
);
779 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
781 if (addr_len
!= sizeof(struct sockaddr_irda
))
784 #ifdef CONFIG_IRDA_ULTRA
785 /* Special care for Ultra sockets */
786 if ((sk
->sk_type
== SOCK_DGRAM
) &&
787 (sk
->sk_protocol
== IRDAPROTO_ULTRA
)) {
788 self
->pid
= addr
->sir_lsap_sel
;
789 if (self
->pid
& 0x80) {
790 IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __FUNCTION__
);
793 err
= irda_open_lsap(self
, self
->pid
);
797 /* Pretend we are connected */
798 sock
->state
= SS_CONNECTED
;
799 sk
->sk_state
= TCP_ESTABLISHED
;
803 #endif /* CONFIG_IRDA_ULTRA */
805 err
= irda_open_tsap(self
, addr
->sir_lsap_sel
, addr
->sir_name
);
809 /* Register with LM-IAS */
810 self
->ias_obj
= irias_new_object(addr
->sir_name
, jiffies
);
811 irias_add_integer_attrib(self
->ias_obj
, "IrDA:TinyTP:LsapSel",
812 self
->stsap_sel
, IAS_KERNEL_ATTR
);
813 irias_insert_object(self
->ias_obj
);
819 * Function irda_accept (sock, newsock, flags)
821 * Wait for incoming connection
824 static int irda_accept(struct socket
*sock
, struct socket
*newsock
, int flags
)
826 struct sock
*sk
= sock
->sk
;
827 struct irda_sock
*new, *self
= irda_sk(sk
);
832 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
834 err
= irda_create(sk
->sk_net
, newsock
, sk
->sk_protocol
);
838 if (sock
->state
!= SS_UNCONNECTED
)
841 if ((sk
= sock
->sk
) == NULL
)
844 if ((sk
->sk_type
!= SOCK_STREAM
) && (sk
->sk_type
!= SOCK_SEQPACKET
) &&
845 (sk
->sk_type
!= SOCK_DGRAM
))
848 if (sk
->sk_state
!= TCP_LISTEN
)
852 * The read queue this time is holding sockets ready to use
853 * hooked into the SABM we saved
857 * We can perform the accept only if there is incoming data
858 * on the listening socket.
859 * So, we will block the caller until we receive any data.
860 * If the caller was waiting on select() or poll() before
861 * calling us, the data is waiting for us ;-)
865 skb
= skb_dequeue(&sk
->sk_receive_queue
);
869 /* Non blocking operation */
870 if (flags
& O_NONBLOCK
)
873 err
= wait_event_interruptible(*(sk
->sk_sleep
),
874 skb_peek(&sk
->sk_receive_queue
));
883 newsk
->sk_state
= TCP_ESTABLISHED
;
885 new = irda_sk(newsk
);
887 /* Now attach up the new socket */
888 new->tsap
= irttp_dup(self
->tsap
, new);
890 IRDA_DEBUG(0, "%s(), dup failed!\n", __FUNCTION__
);
895 new->stsap_sel
= new->tsap
->stsap_sel
;
896 new->dtsap_sel
= new->tsap
->dtsap_sel
;
897 new->saddr
= irttp_get_saddr(new->tsap
);
898 new->daddr
= irttp_get_daddr(new->tsap
);
900 new->max_sdu_size_tx
= self
->max_sdu_size_tx
;
901 new->max_sdu_size_rx
= self
->max_sdu_size_rx
;
902 new->max_data_size
= self
->max_data_size
;
903 new->max_header_size
= self
->max_header_size
;
905 memcpy(&new->qos_tx
, &self
->qos_tx
, sizeof(struct qos_info
));
907 /* Clean up the original one to keep it in listen state */
908 irttp_listen(self
->tsap
);
910 /* Wow ! What is that ? Jean II */
912 skb
->destructor
= NULL
;
914 sk
->sk_ack_backlog
--;
916 newsock
->state
= SS_CONNECTED
;
918 irda_connect_response(new);
924 * Function irda_connect (sock, uaddr, addr_len, flags)
926 * Connect to a IrDA device
928 * The main difference with a "standard" connect is that with IrDA we need
929 * to resolve the service name into a TSAP selector (in TCP, port number
930 * doesn't have to be resolved).
931 * Because of this service name resoltion, we can offer "auto-connect",
932 * where we connect to a service without specifying a destination address.
934 * Note : by consulting "errno", the user space caller may learn the cause
935 * of the failure. Most of them are visible in the function, others may come
936 * from subroutines called and are listed here :
937 * o EBUSY : already processing a connect
938 * o EHOSTUNREACH : bad addr->sir_addr argument
939 * o EADDRNOTAVAIL : bad addr->sir_name argument
940 * o ENOTUNIQ : more than one node has addr->sir_name (auto-connect)
941 * o ENETUNREACH : no node found on the network (auto-connect)
943 static int irda_connect(struct socket
*sock
, struct sockaddr
*uaddr
,
944 int addr_len
, int flags
)
946 struct sock
*sk
= sock
->sk
;
947 struct sockaddr_irda
*addr
= (struct sockaddr_irda
*) uaddr
;
948 struct irda_sock
*self
= irda_sk(sk
);
951 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
953 /* Don't allow connect for Ultra sockets */
954 if ((sk
->sk_type
== SOCK_DGRAM
) && (sk
->sk_protocol
== IRDAPROTO_ULTRA
))
955 return -ESOCKTNOSUPPORT
;
957 if (sk
->sk_state
== TCP_ESTABLISHED
&& sock
->state
== SS_CONNECTING
) {
958 sock
->state
= SS_CONNECTED
;
959 return 0; /* Connect completed during a ERESTARTSYS event */
962 if (sk
->sk_state
== TCP_CLOSE
&& sock
->state
== SS_CONNECTING
) {
963 sock
->state
= SS_UNCONNECTED
;
964 return -ECONNREFUSED
;
967 if (sk
->sk_state
== TCP_ESTABLISHED
)
968 return -EISCONN
; /* No reconnect on a seqpacket socket */
970 sk
->sk_state
= TCP_CLOSE
;
971 sock
->state
= SS_UNCONNECTED
;
973 if (addr_len
!= sizeof(struct sockaddr_irda
))
976 /* Check if user supplied any destination device address */
977 if ((!addr
->sir_addr
) || (addr
->sir_addr
== DEV_ADDR_ANY
)) {
978 /* Try to find one suitable */
979 err
= irda_discover_daddr_and_lsap_sel(self
, addr
->sir_name
);
981 IRDA_DEBUG(0, "%s(), auto-connect failed!\n", __FUNCTION__
);
985 /* Use the one provided by the user */
986 self
->daddr
= addr
->sir_addr
;
987 IRDA_DEBUG(1, "%s(), daddr = %08x\n", __FUNCTION__
, self
->daddr
);
989 /* If we don't have a valid service name, we assume the
990 * user want to connect on a specific LSAP. Prevent
991 * the use of invalid LSAPs (IrLMP 1.1 p10). Jean II */
992 if((addr
->sir_name
[0] != '\0') ||
993 (addr
->sir_lsap_sel
>= 0x70)) {
994 /* Query remote LM-IAS using service name */
995 err
= irda_find_lsap_sel(self
, addr
->sir_name
);
997 IRDA_DEBUG(0, "%s(), connect failed!\n", __FUNCTION__
);
1001 /* Directly connect to the remote LSAP
1002 * specified by the sir_lsap field.
1003 * Please use with caution, in IrDA LSAPs are
1004 * dynamic and there is no "well-known" LSAP. */
1005 self
->dtsap_sel
= addr
->sir_lsap_sel
;
1009 /* Check if we have opened a local TSAP */
1011 irda_open_tsap(self
, LSAP_ANY
, addr
->sir_name
);
1013 /* Move to connecting socket, start sending Connect Requests */
1014 sock
->state
= SS_CONNECTING
;
1015 sk
->sk_state
= TCP_SYN_SENT
;
1017 /* Connect to remote device */
1018 err
= irttp_connect_request(self
->tsap
, self
->dtsap_sel
,
1019 self
->saddr
, self
->daddr
, NULL
,
1020 self
->max_sdu_size_rx
, NULL
);
1022 IRDA_DEBUG(0, "%s(), connect failed!\n", __FUNCTION__
);
1027 if (sk
->sk_state
!= TCP_ESTABLISHED
&& (flags
& O_NONBLOCK
))
1028 return -EINPROGRESS
;
1030 if (wait_event_interruptible(*(sk
->sk_sleep
),
1031 (sk
->sk_state
!= TCP_SYN_SENT
)))
1032 return -ERESTARTSYS
;
1034 if (sk
->sk_state
!= TCP_ESTABLISHED
) {
1035 sock
->state
= SS_UNCONNECTED
;
1036 err
= sock_error(sk
);
1037 return err
? err
: -ECONNRESET
;
1040 sock
->state
= SS_CONNECTED
;
1042 /* At this point, IrLMP has assigned our source address */
1043 self
->saddr
= irttp_get_saddr(self
->tsap
);
1048 static struct proto irda_proto
= {
1050 .owner
= THIS_MODULE
,
1051 .obj_size
= sizeof(struct irda_sock
),
1055 * Function irda_create (sock, protocol)
1057 * Create IrDA socket
1060 static int irda_create(struct net
*net
, struct socket
*sock
, int protocol
)
1063 struct irda_sock
*self
;
1065 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
1067 if (net
!= &init_net
)
1068 return -EAFNOSUPPORT
;
1070 /* Check for valid socket type */
1071 switch (sock
->type
) {
1072 case SOCK_STREAM
: /* For TTP connections with SAR disabled */
1073 case SOCK_SEQPACKET
: /* For TTP connections with SAR enabled */
1074 case SOCK_DGRAM
: /* For TTP Unitdata or LMP Ultra transfers */
1077 return -ESOCKTNOSUPPORT
;
1080 /* Allocate networking socket */
1081 sk
= sk_alloc(net
, PF_IRDA
, GFP_ATOMIC
, &irda_proto
);
1086 IRDA_DEBUG(2, "%s() : self is %p\n", __FUNCTION__
, self
);
1088 init_waitqueue_head(&self
->query_wait
);
1090 /* Initialise networking socket struct */
1091 sock_init_data(sock
, sk
); /* Note : set sk->sk_refcnt to 1 */
1092 sk
->sk_family
= PF_IRDA
;
1093 sk
->sk_protocol
= protocol
;
1095 switch (sock
->type
) {
1097 sock
->ops
= &irda_stream_ops
;
1098 self
->max_sdu_size_rx
= TTP_SAR_DISABLE
;
1100 case SOCK_SEQPACKET
:
1101 sock
->ops
= &irda_seqpacket_ops
;
1102 self
->max_sdu_size_rx
= TTP_SAR_UNBOUND
;
1106 #ifdef CONFIG_IRDA_ULTRA
1107 case IRDAPROTO_ULTRA
:
1108 sock
->ops
= &irda_ultra_ops
;
1109 /* Initialise now, because we may send on unbound
1110 * sockets. Jean II */
1111 self
->max_data_size
= ULTRA_MAX_DATA
- LMP_PID_HEADER
;
1112 self
->max_header_size
= IRDA_MAX_HEADER
+ LMP_PID_HEADER
;
1114 #endif /* CONFIG_IRDA_ULTRA */
1115 case IRDAPROTO_UNITDATA
:
1116 sock
->ops
= &irda_dgram_ops
;
1117 /* We let Unitdata conn. be like seqpack conn. */
1118 self
->max_sdu_size_rx
= TTP_SAR_UNBOUND
;
1121 return -ESOCKTNOSUPPORT
;
1125 return -ESOCKTNOSUPPORT
;
1128 /* Register as a client with IrLMP */
1129 self
->ckey
= irlmp_register_client(0, NULL
, NULL
, NULL
);
1130 self
->mask
.word
= 0xffff;
1131 self
->rx_flow
= self
->tx_flow
= FLOW_START
;
1132 self
->nslots
= DISCOVERY_DEFAULT_SLOTS
;
1133 self
->daddr
= DEV_ADDR_ANY
; /* Until we get connected */
1134 self
->saddr
= 0x0; /* so IrLMP assign us any link */
1139 * Function irda_destroy_socket (self)
1144 static void irda_destroy_socket(struct irda_sock
*self
)
1146 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
1148 /* Unregister with IrLMP */
1149 irlmp_unregister_client(self
->ckey
);
1150 irlmp_unregister_service(self
->skey
);
1152 /* Unregister with LM-IAS */
1153 if (self
->ias_obj
) {
1154 irias_delete_object(self
->ias_obj
);
1155 self
->ias_obj
= NULL
;
1159 iriap_close(self
->iriap
);
1164 irttp_disconnect_request(self
->tsap
, NULL
, P_NORMAL
);
1165 irttp_close_tsap(self
->tsap
);
1168 #ifdef CONFIG_IRDA_ULTRA
1170 irlmp_close_lsap(self
->lsap
);
1173 #endif /* CONFIG_IRDA_ULTRA */
1177 * Function irda_release (sock)
1179 static int irda_release(struct socket
*sock
)
1181 struct sock
*sk
= sock
->sk
;
1183 IRDA_DEBUG(2, "%s()\n", __FUNCTION__
);
1189 sk
->sk_state
= TCP_CLOSE
;
1190 sk
->sk_shutdown
|= SEND_SHUTDOWN
;
1191 sk
->sk_state_change(sk
);
1193 /* Destroy IrDA socket */
1194 irda_destroy_socket(irda_sk(sk
));
1200 /* Purge queues (see sock_init_data()) */
1201 skb_queue_purge(&sk
->sk_receive_queue
);
1203 /* Destroy networking socket if we are the last reference on it,
1204 * i.e. if(sk->sk_refcnt == 0) -> sk_free(sk) */
1207 /* Notes on socket locking and deallocation... - Jean II
1208 * In theory we should put pairs of sock_hold() / sock_put() to
1209 * prevent the socket to be destroyed whenever there is an
1210 * outstanding request or outstanding incoming packet or event.
1212 * 1) This may include IAS request, both in connect and getsockopt.
1213 * Unfortunately, the situation is a bit more messy than it looks,
1214 * because we close iriap and kfree(self) above.
1216 * 2) This may include selective discovery in getsockopt.
1217 * Same stuff as above, irlmp registration and self are gone.
1219 * Probably 1 and 2 may not matter, because it's all triggered
1220 * by a process and the socket layer already prevent the
1221 * socket to go away while a process is holding it, through
1222 * sockfd_put() and fput()...
1224 * 3) This may include deferred TSAP closure. In particular,
1225 * we may receive a late irda_disconnect_indication()
1226 * Fortunately, (tsap_cb *)->close_pend should protect us
1229 * I did some testing on SMP, and it looks solid. And the socket
1230 * memory leak is now gone... - Jean II
1237 * Function irda_sendmsg (iocb, sock, msg, len)
1239 * Send message down to TinyTP. This function is used for both STREAM and
1240 * SEQPACK services. This is possible since it forces the client to
1241 * fragment the message if necessary
1243 static int irda_sendmsg(struct kiocb
*iocb
, struct socket
*sock
,
1244 struct msghdr
*msg
, size_t len
)
1246 struct sock
*sk
= sock
->sk
;
1247 struct irda_sock
*self
;
1248 struct sk_buff
*skb
;
1251 IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__
, len
);
1253 /* Note : socket.c set MSG_EOR on SEQPACKET sockets */
1254 if (msg
->msg_flags
& ~(MSG_DONTWAIT
| MSG_EOR
| MSG_CMSG_COMPAT
|
1258 if (sk
->sk_shutdown
& SEND_SHUTDOWN
)
1261 if (sk
->sk_state
!= TCP_ESTABLISHED
)
1266 /* Check if IrTTP is wants us to slow down */
1268 if (wait_event_interruptible(*(sk
->sk_sleep
),
1269 (self
->tx_flow
!= FLOW_STOP
|| sk
->sk_state
!= TCP_ESTABLISHED
)))
1270 return -ERESTARTSYS
;
1272 /* Check if we are still connected */
1273 if (sk
->sk_state
!= TCP_ESTABLISHED
)
1276 /* Check that we don't send out too big frames */
1277 if (len
> self
->max_data_size
) {
1278 IRDA_DEBUG(2, "%s(), Chopping frame from %zd to %d bytes!\n",
1279 __FUNCTION__
, len
, self
->max_data_size
);
1280 len
= self
->max_data_size
;
1283 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
+ 16,
1284 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1288 skb_reserve(skb
, self
->max_header_size
+ 16);
1289 skb_reset_transport_header(skb
);
1291 err
= memcpy_fromiovec(skb_transport_header(skb
), msg
->msg_iov
, len
);
1298 * Just send the message to TinyTP, and let it deal with possible
1299 * errors. No need to duplicate all that here
1301 err
= irttp_data_request(self
->tsap
, skb
);
1303 IRDA_DEBUG(0, "%s(), err=%d\n", __FUNCTION__
, err
);
1306 /* Tell client how much data we actually sent */
1310 return sk_stream_error(sk
, msg
->msg_flags
, err
);
1315 * Function irda_recvmsg_dgram (iocb, sock, msg, size, flags)
1317 * Try to receive message and copy it to user. The frame is discarded
1318 * after being read, regardless of how much the user actually read
1320 static int irda_recvmsg_dgram(struct kiocb
*iocb
, struct socket
*sock
,
1321 struct msghdr
*msg
, size_t size
, int flags
)
1323 struct sock
*sk
= sock
->sk
;
1324 struct irda_sock
*self
= irda_sk(sk
);
1325 struct sk_buff
*skb
;
1329 IRDA_DEBUG(4, "%s()\n", __FUNCTION__
);
1331 if ((err
= sock_error(sk
)) < 0)
1334 skb
= skb_recv_datagram(sk
, flags
& ~MSG_DONTWAIT
,
1335 flags
& MSG_DONTWAIT
, &err
);
1339 skb_reset_transport_header(skb
);
1342 if (copied
> size
) {
1343 IRDA_DEBUG(2, "%s(), Received truncated frame (%zd < %zd)!\n",
1344 __FUNCTION__
, copied
, size
);
1346 msg
->msg_flags
|= MSG_TRUNC
;
1348 skb_copy_datagram_iovec(skb
, 0, msg
->msg_iov
, copied
);
1350 skb_free_datagram(sk
, skb
);
1353 * Check if we have previously stopped IrTTP and we know
1354 * have more free space in our rx_queue. If so tell IrTTP
1355 * to start delivering frames again before our rx_queue gets
1358 if (self
->rx_flow
== FLOW_STOP
) {
1359 if ((atomic_read(&sk
->sk_rmem_alloc
) << 2) <= sk
->sk_rcvbuf
) {
1360 IRDA_DEBUG(2, "%s(), Starting IrTTP\n", __FUNCTION__
);
1361 self
->rx_flow
= FLOW_START
;
1362 irttp_flow_request(self
->tsap
, FLOW_START
);
1370 * Function irda_recvmsg_stream (iocb, sock, msg, size, flags)
1372 static int irda_recvmsg_stream(struct kiocb
*iocb
, struct socket
*sock
,
1373 struct msghdr
*msg
, size_t size
, int flags
)
1375 struct sock
*sk
= sock
->sk
;
1376 struct irda_sock
*self
= irda_sk(sk
);
1377 int noblock
= flags
& MSG_DONTWAIT
;
1382 IRDA_DEBUG(3, "%s()\n", __FUNCTION__
);
1384 if ((err
= sock_error(sk
)) < 0)
1387 if (sock
->flags
& __SO_ACCEPTCON
)
1390 if (flags
& MSG_OOB
)
1393 target
= sock_rcvlowat(sk
, flags
& MSG_WAITALL
, size
);
1394 timeo
= sock_rcvtimeo(sk
, noblock
);
1396 msg
->msg_namelen
= 0;
1400 struct sk_buff
*skb
= skb_dequeue(&sk
->sk_receive_queue
);
1406 if (copied
>= target
)
1409 prepare_to_wait_exclusive(sk
->sk_sleep
, &wait
, TASK_INTERRUPTIBLE
);
1412 * POSIX 1003.1g mandates this order.
1414 ret
= sock_error(sk
);
1417 else if (sk
->sk_shutdown
& RCV_SHUTDOWN
)
1421 else if (signal_pending(current
))
1422 ret
= sock_intr_errno(timeo
);
1423 else if (sk
->sk_state
!= TCP_ESTABLISHED
)
1425 else if (skb_peek(&sk
->sk_receive_queue
) == NULL
)
1426 /* Wait process until data arrives */
1429 finish_wait(sk
->sk_sleep
, &wait
);
1433 if (sk
->sk_shutdown
& RCV_SHUTDOWN
)
1439 chunk
= min_t(unsigned int, skb
->len
, size
);
1440 if (memcpy_toiovec(msg
->msg_iov
, skb
->data
, chunk
)) {
1441 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1449 /* Mark read part of skb as used */
1450 if (!(flags
& MSG_PEEK
)) {
1451 skb_pull(skb
, chunk
);
1453 /* put the skb back if we didn't use it up.. */
1455 IRDA_DEBUG(1, "%s(), back on q!\n",
1457 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1463 IRDA_DEBUG(0, "%s() questionable!?\n", __FUNCTION__
);
1465 /* put message back and return */
1466 skb_queue_head(&sk
->sk_receive_queue
, skb
);
1472 * Check if we have previously stopped IrTTP and we know
1473 * have more free space in our rx_queue. If so tell IrTTP
1474 * to start delivering frames again before our rx_queue gets
1477 if (self
->rx_flow
== FLOW_STOP
) {
1478 if ((atomic_read(&sk
->sk_rmem_alloc
) << 2) <= sk
->sk_rcvbuf
) {
1479 IRDA_DEBUG(2, "%s(), Starting IrTTP\n", __FUNCTION__
);
1480 self
->rx_flow
= FLOW_START
;
1481 irttp_flow_request(self
->tsap
, FLOW_START
);
1489 * Function irda_sendmsg_dgram (iocb, sock, msg, len)
1491 * Send message down to TinyTP for the unreliable sequenced
1495 static int irda_sendmsg_dgram(struct kiocb
*iocb
, struct socket
*sock
,
1496 struct msghdr
*msg
, size_t len
)
1498 struct sock
*sk
= sock
->sk
;
1499 struct irda_sock
*self
;
1500 struct sk_buff
*skb
;
1503 IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__
, len
);
1505 if (msg
->msg_flags
& ~(MSG_DONTWAIT
|MSG_CMSG_COMPAT
))
1508 if (sk
->sk_shutdown
& SEND_SHUTDOWN
) {
1509 send_sig(SIGPIPE
, current
, 0);
1513 if (sk
->sk_state
!= TCP_ESTABLISHED
)
1519 * Check that we don't send out too big frames. This is an unreliable
1520 * service, so we have no fragmentation and no coalescence
1522 if (len
> self
->max_data_size
) {
1523 IRDA_DEBUG(0, "%s(), Warning to much data! "
1524 "Chopping frame from %zd to %d bytes!\n",
1525 __FUNCTION__
, len
, self
->max_data_size
);
1526 len
= self
->max_data_size
;
1529 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
,
1530 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1534 skb_reserve(skb
, self
->max_header_size
);
1535 skb_reset_transport_header(skb
);
1537 IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__
);
1539 err
= memcpy_fromiovec(skb_transport_header(skb
), msg
->msg_iov
, len
);
1546 * Just send the message to TinyTP, and let it deal with possible
1547 * errors. No need to duplicate all that here
1549 err
= irttp_udata_request(self
->tsap
, skb
);
1551 IRDA_DEBUG(0, "%s(), err=%d\n", __FUNCTION__
, err
);
1558 * Function irda_sendmsg_ultra (iocb, sock, msg, len)
1560 * Send message down to IrLMP for the unreliable Ultra
1563 #ifdef CONFIG_IRDA_ULTRA
1564 static int irda_sendmsg_ultra(struct kiocb
*iocb
, struct socket
*sock
,
1565 struct msghdr
*msg
, size_t len
)
1567 struct sock
*sk
= sock
->sk
;
1568 struct irda_sock
*self
;
1571 struct sk_buff
*skb
;
1574 IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__
, len
);
1576 if (msg
->msg_flags
& ~(MSG_DONTWAIT
|MSG_CMSG_COMPAT
))
1579 if (sk
->sk_shutdown
& SEND_SHUTDOWN
) {
1580 send_sig(SIGPIPE
, current
, 0);
1586 /* Check if an address was specified with sendto. Jean II */
1587 if (msg
->msg_name
) {
1588 struct sockaddr_irda
*addr
= (struct sockaddr_irda
*) msg
->msg_name
;
1589 /* Check address, extract pid. Jean II */
1590 if (msg
->msg_namelen
< sizeof(*addr
))
1592 if (addr
->sir_family
!= AF_IRDA
)
1595 pid
= addr
->sir_lsap_sel
;
1597 IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __FUNCTION__
);
1601 /* Check that the socket is properly bound to an Ultra
1603 if ((self
->lsap
== NULL
) ||
1604 (sk
->sk_state
!= TCP_ESTABLISHED
)) {
1605 IRDA_DEBUG(0, "%s(), socket not bound to Ultra PID.\n",
1609 /* Use PID from socket */
1614 * Check that we don't send out too big frames. This is an unreliable
1615 * service, so we have no fragmentation and no coalescence
1617 if (len
> self
->max_data_size
) {
1618 IRDA_DEBUG(0, "%s(), Warning to much data! "
1619 "Chopping frame from %zd to %d bytes!\n",
1620 __FUNCTION__
, len
, self
->max_data_size
);
1621 len
= self
->max_data_size
;
1624 skb
= sock_alloc_send_skb(sk
, len
+ self
->max_header_size
,
1625 msg
->msg_flags
& MSG_DONTWAIT
, &err
);
1629 skb_reserve(skb
, self
->max_header_size
);
1630 skb_reset_transport_header(skb
);
1632 IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__
);
1634 err
= memcpy_fromiovec(skb_transport_header(skb
), msg
->msg_iov
, len
);
1640 err
= irlmp_connless_data_request((bound
? self
->lsap
: NULL
),
1643 IRDA_DEBUG(0, "%s(), err=%d\n", __FUNCTION__
, err
);
1648 #endif /* CONFIG_IRDA_ULTRA */
1651 * Function irda_shutdown (sk, how)
1653 static int irda_shutdown(struct socket
*sock
, int how
)
1655 struct sock
*sk
= sock
->sk
;
1656 struct irda_sock
*self
= irda_sk(sk
);
1658 IRDA_DEBUG(1, "%s(%p)\n", __FUNCTION__
, self
);
1660 sk
->sk_state
= TCP_CLOSE
;
1661 sk
->sk_shutdown
|= SEND_SHUTDOWN
;
1662 sk
->sk_state_change(sk
);
1665 iriap_close(self
->iriap
);
1670 irttp_disconnect_request(self
->tsap
, NULL
, P_NORMAL
);
1671 irttp_close_tsap(self
->tsap
);
1675 /* A few cleanup so the socket look as good as new... */
1676 self
->rx_flow
= self
->tx_flow
= FLOW_START
; /* needed ??? */
1677 self
->daddr
= DEV_ADDR_ANY
; /* Until we get re-connected */
1678 self
->saddr
= 0x0; /* so IrLMP assign us any link */
1684 * Function irda_poll (file, sock, wait)
1686 static unsigned int irda_poll(struct file
* file
, struct socket
*sock
,
1689 struct sock
*sk
= sock
->sk
;
1690 struct irda_sock
*self
= irda_sk(sk
);
1693 IRDA_DEBUG(4, "%s()\n", __FUNCTION__
);
1695 poll_wait(file
, sk
->sk_sleep
, wait
);
1698 /* Exceptional events? */
1701 if (sk
->sk_shutdown
& RCV_SHUTDOWN
) {
1702 IRDA_DEBUG(0, "%s(), POLLHUP\n", __FUNCTION__
);
1707 if (!skb_queue_empty(&sk
->sk_receive_queue
)) {
1708 IRDA_DEBUG(4, "Socket is readable\n");
1709 mask
|= POLLIN
| POLLRDNORM
;
1712 /* Connection-based need to check for termination and startup */
1713 switch (sk
->sk_type
) {
1715 if (sk
->sk_state
== TCP_CLOSE
) {
1716 IRDA_DEBUG(0, "%s(), POLLHUP\n", __FUNCTION__
);
1720 if (sk
->sk_state
== TCP_ESTABLISHED
) {
1721 if ((self
->tx_flow
== FLOW_START
) &&
1724 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1728 case SOCK_SEQPACKET
:
1729 if ((self
->tx_flow
== FLOW_START
) &&
1732 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1736 if (sock_writeable(sk
))
1737 mask
|= POLLOUT
| POLLWRNORM
| POLLWRBAND
;
1746 * Function irda_ioctl (sock, cmd, arg)
1748 static int irda_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
1750 struct sock
*sk
= sock
->sk
;
1752 IRDA_DEBUG(4, "%s(), cmd=%#x\n", __FUNCTION__
, cmd
);
1757 amount
= sk
->sk_sndbuf
- atomic_read(&sk
->sk_wmem_alloc
);
1760 if (put_user(amount
, (unsigned int __user
*)arg
))
1766 struct sk_buff
*skb
;
1768 /* These two are safe on a single CPU system as only user tasks fiddle here */
1769 if ((skb
= skb_peek(&sk
->sk_receive_queue
)) != NULL
)
1771 if (put_user(amount
, (unsigned int __user
*)arg
))
1778 return sock_get_timestamp(sk
, (struct timeval __user
*)arg
);
1783 case SIOCGIFDSTADDR
:
1784 case SIOCSIFDSTADDR
:
1785 case SIOCGIFBRDADDR
:
1786 case SIOCSIFBRDADDR
:
1787 case SIOCGIFNETMASK
:
1788 case SIOCSIFNETMASK
:
1793 IRDA_DEBUG(1, "%s(), doing device ioctl!\n", __FUNCTION__
);
1794 return -ENOIOCTLCMD
;
1801 #ifdef CONFIG_COMPAT
1803 * Function irda_ioctl (sock, cmd, arg)
1805 static int irda_compat_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
1808 * All IRDA's ioctl are standard ones.
1810 return -ENOIOCTLCMD
;
1815 * Function irda_setsockopt (sock, level, optname, optval, optlen)
1817 * Set some options for the socket
1820 static int irda_setsockopt(struct socket
*sock
, int level
, int optname
,
1821 char __user
*optval
, int optlen
)
1823 struct sock
*sk
= sock
->sk
;
1824 struct irda_sock
*self
= irda_sk(sk
);
1825 struct irda_ias_set
*ias_opt
;
1826 struct ias_object
*ias_obj
;
1827 struct ias_attrib
* ias_attr
; /* Attribute in IAS object */
1830 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
1832 if (level
!= SOL_IRLMP
)
1833 return -ENOPROTOOPT
;
1837 /* The user want to add an attribute to an existing IAS object
1838 * (in the IAS database) or to create a new object with this
1840 * We first query IAS to know if the object exist, and then
1841 * create the right attribute...
1844 if (optlen
!= sizeof(struct irda_ias_set
))
1847 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
1848 if (ias_opt
== NULL
)
1851 /* Copy query to the driver. */
1852 if (copy_from_user(ias_opt
, optval
, optlen
)) {
1857 /* Find the object we target.
1858 * If the user gives us an empty string, we use the object
1859 * associated with this socket. This will workaround
1860 * duplicated class name - Jean II */
1861 if(ias_opt
->irda_class_name
[0] == '\0') {
1862 if(self
->ias_obj
== NULL
) {
1866 ias_obj
= self
->ias_obj
;
1868 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
1870 /* Only ROOT can mess with the global IAS database.
1871 * Users can only add attributes to the object associated
1872 * with the socket they own - Jean II */
1873 if((!capable(CAP_NET_ADMIN
)) &&
1874 ((ias_obj
== NULL
) || (ias_obj
!= self
->ias_obj
))) {
1879 /* If the object doesn't exist, create it */
1880 if(ias_obj
== (struct ias_object
*) NULL
) {
1881 /* Create a new object */
1882 ias_obj
= irias_new_object(ias_opt
->irda_class_name
,
1886 /* Do we have the attribute already ? */
1887 if(irias_find_attrib(ias_obj
, ias_opt
->irda_attrib_name
)) {
1892 /* Look at the type */
1893 switch(ias_opt
->irda_attrib_type
) {
1895 /* Add an integer attribute */
1896 irias_add_integer_attrib(
1898 ias_opt
->irda_attrib_name
,
1899 ias_opt
->attribute
.irda_attrib_int
,
1904 if(ias_opt
->attribute
.irda_attrib_octet_seq
.len
>
1905 IAS_MAX_OCTET_STRING
) {
1909 /* Add an octet sequence attribute */
1910 irias_add_octseq_attrib(
1912 ias_opt
->irda_attrib_name
,
1913 ias_opt
->attribute
.irda_attrib_octet_seq
.octet_seq
,
1914 ias_opt
->attribute
.irda_attrib_octet_seq
.len
,
1918 /* Should check charset & co */
1920 /* The length is encoded in a __u8, and
1921 * IAS_MAX_STRING == 256, so there is no way
1922 * userspace can pass us a string too large.
1924 /* NULL terminate the string (avoid troubles) */
1925 ias_opt
->attribute
.irda_attrib_string
.string
[ias_opt
->attribute
.irda_attrib_string
.len
] = '\0';
1926 /* Add a string attribute */
1927 irias_add_string_attrib(
1929 ias_opt
->irda_attrib_name
,
1930 ias_opt
->attribute
.irda_attrib_string
.string
,
1937 irias_insert_object(ias_obj
);
1941 /* The user want to delete an object from our local IAS
1942 * database. We just need to query the IAS, check is the
1943 * object is not owned by the kernel and delete it.
1946 if (optlen
!= sizeof(struct irda_ias_set
))
1949 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
1950 if (ias_opt
== NULL
)
1953 /* Copy query to the driver. */
1954 if (copy_from_user(ias_opt
, optval
, optlen
)) {
1959 /* Find the object we target.
1960 * If the user gives us an empty string, we use the object
1961 * associated with this socket. This will workaround
1962 * duplicated class name - Jean II */
1963 if(ias_opt
->irda_class_name
[0] == '\0')
1964 ias_obj
= self
->ias_obj
;
1966 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
1967 if(ias_obj
== (struct ias_object
*) NULL
) {
1972 /* Only ROOT can mess with the global IAS database.
1973 * Users can only del attributes from the object associated
1974 * with the socket they own - Jean II */
1975 if((!capable(CAP_NET_ADMIN
)) &&
1976 ((ias_obj
== NULL
) || (ias_obj
!= self
->ias_obj
))) {
1981 /* Find the attribute (in the object) we target */
1982 ias_attr
= irias_find_attrib(ias_obj
,
1983 ias_opt
->irda_attrib_name
);
1984 if(ias_attr
== (struct ias_attrib
*) NULL
) {
1989 /* Check is the user space own the object */
1990 if(ias_attr
->value
->owner
!= IAS_USER_ATTR
) {
1991 IRDA_DEBUG(1, "%s(), attempting to delete a kernel attribute\n", __FUNCTION__
);
1996 /* Remove the attribute (and maybe the object) */
1997 irias_delete_attrib(ias_obj
, ias_attr
, 1);
2000 case IRLMP_MAX_SDU_SIZE
:
2001 if (optlen
< sizeof(int))
2004 if (get_user(opt
, (int __user
*)optval
))
2007 /* Only possible for a seqpacket service (TTP with SAR) */
2008 if (sk
->sk_type
!= SOCK_SEQPACKET
) {
2009 IRDA_DEBUG(2, "%s(), setting max_sdu_size = %d\n",
2011 self
->max_sdu_size_rx
= opt
;
2013 IRDA_WARNING("%s: not allowed to set MAXSDUSIZE for this socket type!\n",
2015 return -ENOPROTOOPT
;
2018 case IRLMP_HINTS_SET
:
2019 if (optlen
< sizeof(int))
2022 /* The input is really a (__u8 hints[2]), easier as an int */
2023 if (get_user(opt
, (int __user
*)optval
))
2026 /* Unregister any old registration */
2028 irlmp_unregister_service(self
->skey
);
2030 self
->skey
= irlmp_register_service((__u16
) opt
);
2032 case IRLMP_HINT_MASK_SET
:
2033 /* As opposed to the previous case which set the hint bits
2034 * that we advertise, this one set the filter we use when
2035 * making a discovery (nodes which don't match any hint
2036 * bit in the mask are not reported).
2038 if (optlen
< sizeof(int))
2041 /* The input is really a (__u8 hints[2]), easier as an int */
2042 if (get_user(opt
, (int __user
*)optval
))
2045 /* Set the new hint mask */
2046 self
->mask
.word
= (__u16
) opt
;
2047 /* Mask out extension bits */
2048 self
->mask
.word
&= 0x7f7f;
2049 /* Check if no bits */
2050 if(!self
->mask
.word
)
2051 self
->mask
.word
= 0xFFFF;
2055 return -ENOPROTOOPT
;
2061 * Function irda_extract_ias_value(ias_opt, ias_value)
2063 * Translate internal IAS value structure to the user space representation
2065 * The external representation of IAS values, as we exchange them with
2066 * user space program is quite different from the internal representation,
2067 * as stored in the IAS database (because we need a flat structure for
2068 * crossing kernel boundary).
2069 * This function transform the former in the latter. We also check
2070 * that the value type is valid.
2072 static int irda_extract_ias_value(struct irda_ias_set
*ias_opt
,
2073 struct ias_value
*ias_value
)
2075 /* Look at the type */
2076 switch (ias_value
->type
) {
2078 /* Copy the integer */
2079 ias_opt
->attribute
.irda_attrib_int
= ias_value
->t
.integer
;
2083 ias_opt
->attribute
.irda_attrib_octet_seq
.len
= ias_value
->len
;
2085 memcpy(ias_opt
->attribute
.irda_attrib_octet_seq
.octet_seq
,
2086 ias_value
->t
.oct_seq
, ias_value
->len
);
2090 ias_opt
->attribute
.irda_attrib_string
.len
= ias_value
->len
;
2091 ias_opt
->attribute
.irda_attrib_string
.charset
= ias_value
->charset
;
2093 memcpy(ias_opt
->attribute
.irda_attrib_string
.string
,
2094 ias_value
->t
.string
, ias_value
->len
);
2095 /* NULL terminate the string (avoid troubles) */
2096 ias_opt
->attribute
.irda_attrib_string
.string
[ias_value
->len
] = '\0';
2103 /* Copy type over */
2104 ias_opt
->irda_attrib_type
= ias_value
->type
;
2110 * Function irda_getsockopt (sock, level, optname, optval, optlen)
2112 static int irda_getsockopt(struct socket
*sock
, int level
, int optname
,
2113 char __user
*optval
, int __user
*optlen
)
2115 struct sock
*sk
= sock
->sk
;
2116 struct irda_sock
*self
= irda_sk(sk
);
2117 struct irda_device_list list
;
2118 struct irda_device_info
*discoveries
;
2119 struct irda_ias_set
* ias_opt
; /* IAS get/query params */
2120 struct ias_object
* ias_obj
; /* Object in IAS */
2121 struct ias_attrib
* ias_attr
; /* Attribute in IAS object */
2122 int daddr
= DEV_ADDR_ANY
; /* Dest address for IAS queries */
2128 IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__
, self
);
2130 if (level
!= SOL_IRLMP
)
2131 return -ENOPROTOOPT
;
2133 if (get_user(len
, optlen
))
2140 case IRLMP_ENUMDEVICES
:
2141 /* Ask lmp for the current discovery log */
2142 discoveries
= irlmp_get_discoveries(&list
.len
, self
->mask
.word
,
2144 /* Check if the we got some results */
2145 if (discoveries
== NULL
)
2146 return -EAGAIN
; /* Didn't find any devices */
2149 /* Write total list length back to client */
2150 if (copy_to_user(optval
, &list
,
2151 sizeof(struct irda_device_list
) -
2152 sizeof(struct irda_device_info
)))
2155 /* Offset to first device entry */
2156 offset
= sizeof(struct irda_device_list
) -
2157 sizeof(struct irda_device_info
);
2159 /* Copy the list itself - watch for overflow */
2165 total
= offset
+ (list
.len
* sizeof(struct irda_device_info
));
2168 if (copy_to_user(optval
+offset
, discoveries
, total
- offset
))
2171 /* Write total number of bytes used back to client */
2172 if (put_user(total
, optlen
))
2175 /* Free up our buffer */
2180 case IRLMP_MAX_SDU_SIZE
:
2181 val
= self
->max_data_size
;
2183 if (put_user(len
, optlen
))
2186 if (copy_to_user(optval
, &val
, len
))
2190 /* The user want an object from our local IAS database.
2191 * We just need to query the IAS and return the value
2194 /* Check that the user has allocated the right space for us */
2195 if (len
!= sizeof(struct irda_ias_set
))
2198 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
2199 if (ias_opt
== NULL
)
2202 /* Copy query to the driver. */
2203 if (copy_from_user(ias_opt
, optval
, len
)) {
2208 /* Find the object we target.
2209 * If the user gives us an empty string, we use the object
2210 * associated with this socket. This will workaround
2211 * duplicated class name - Jean II */
2212 if(ias_opt
->irda_class_name
[0] == '\0')
2213 ias_obj
= self
->ias_obj
;
2215 ias_obj
= irias_find_object(ias_opt
->irda_class_name
);
2216 if(ias_obj
== (struct ias_object
*) NULL
) {
2221 /* Find the attribute (in the object) we target */
2222 ias_attr
= irias_find_attrib(ias_obj
,
2223 ias_opt
->irda_attrib_name
);
2224 if(ias_attr
== (struct ias_attrib
*) NULL
) {
2229 /* Translate from internal to user structure */
2230 err
= irda_extract_ias_value(ias_opt
, ias_attr
->value
);
2236 /* Copy reply to the user */
2237 if (copy_to_user(optval
, ias_opt
,
2238 sizeof(struct irda_ias_set
))) {
2242 /* Note : don't need to put optlen, we checked it */
2245 case IRLMP_IAS_QUERY
:
2246 /* The user want an object from a remote IAS database.
2247 * We need to use IAP to query the remote database and
2248 * then wait for the answer to come back. */
2250 /* Check that the user has allocated the right space for us */
2251 if (len
!= sizeof(struct irda_ias_set
))
2254 ias_opt
= kmalloc(sizeof(struct irda_ias_set
), GFP_ATOMIC
);
2255 if (ias_opt
== NULL
)
2258 /* Copy query to the driver. */
2259 if (copy_from_user(ias_opt
, optval
, len
)) {
2264 /* At this point, there are two cases...
2265 * 1) the socket is connected - that's the easy case, we
2266 * just query the device we are connected to...
2267 * 2) the socket is not connected - the user doesn't want
2268 * to connect and/or may not have a valid service name
2269 * (so can't create a fake connection). In this case,
2270 * we assume that the user pass us a valid destination
2271 * address in the requesting structure...
2273 if(self
->daddr
!= DEV_ADDR_ANY
) {
2274 /* We are connected - reuse known daddr */
2275 daddr
= self
->daddr
;
2277 /* We are not connected, we must specify a valid
2278 * destination address */
2279 daddr
= ias_opt
->daddr
;
2280 if((!daddr
) || (daddr
== DEV_ADDR_ANY
)) {
2286 /* Check that we can proceed with IAP */
2288 IRDA_WARNING("%s: busy with a previous query\n",
2294 self
->iriap
= iriap_open(LSAP_ANY
, IAS_CLIENT
, self
,
2295 irda_getvalue_confirm
);
2297 if (self
->iriap
== NULL
) {
2302 /* Treat unexpected wakeup as disconnect */
2303 self
->errno
= -EHOSTUNREACH
;
2305 /* Query remote LM-IAS */
2306 iriap_getvaluebyclass_request(self
->iriap
,
2308 ias_opt
->irda_class_name
,
2309 ias_opt
->irda_attrib_name
);
2311 /* Wait for answer, if not yet finished (or failed) */
2312 if (wait_event_interruptible(self
->query_wait
,
2313 (self
->iriap
== NULL
))) {
2314 /* pending request uses copy of ias_opt-content
2315 * we can free it regardless! */
2317 /* Treat signals as disconnect */
2318 return -EHOSTUNREACH
;
2321 /* Check what happened */
2325 /* Requested object/attribute doesn't exist */
2326 if((self
->errno
== IAS_CLASS_UNKNOWN
) ||
2327 (self
->errno
== IAS_ATTRIB_UNKNOWN
))
2328 return (-EADDRNOTAVAIL
);
2330 return (-EHOSTUNREACH
);
2333 /* Translate from internal to user structure */
2334 err
= irda_extract_ias_value(ias_opt
, self
->ias_result
);
2335 if (self
->ias_result
)
2336 irias_delete_value(self
->ias_result
);
2342 /* Copy reply to the user */
2343 if (copy_to_user(optval
, ias_opt
,
2344 sizeof(struct irda_ias_set
))) {
2348 /* Note : don't need to put optlen, we checked it */
2351 case IRLMP_WAITDEVICE
:
2352 /* This function is just another way of seeing life ;-)
2353 * IRLMP_ENUMDEVICES assumes that you have a static network,
2354 * and that you just want to pick one of the devices present.
2355 * On the other hand, in here we assume that no device is
2356 * present and that at some point in the future a device will
2357 * come into range. When this device arrive, we just wake
2358 * up the caller, so that he has time to connect to it before
2359 * the device goes away...
2360 * Note : once the node has been discovered for more than a
2361 * few second, it won't trigger this function, unless it
2362 * goes away and come back changes its hint bits (so we
2363 * might call it IRLMP_WAITNEWDEVICE).
2366 /* Check that the user is passing us an int */
2367 if (len
!= sizeof(int))
2369 /* Get timeout in ms (max time we block the caller) */
2370 if (get_user(val
, (int __user
*)optval
))
2373 /* Tell IrLMP we want to be notified */
2374 irlmp_update_client(self
->ckey
, self
->mask
.word
,
2375 irda_selective_discovery_indication
,
2376 NULL
, (void *) self
);
2378 /* Do some discovery (and also return cached results) */
2379 irlmp_discovery_request(self
->nslots
);
2381 /* Wait until a node is discovered */
2382 if (!self
->cachedaddr
) {
2385 IRDA_DEBUG(1, "%s(), nothing discovered yet, going to sleep...\n", __FUNCTION__
);
2387 /* Set watchdog timer to expire in <val> ms. */
2389 init_timer(&self
->watchdog
);
2390 self
->watchdog
.function
= irda_discovery_timeout
;
2391 self
->watchdog
.data
= (unsigned long) self
;
2392 self
->watchdog
.expires
= jiffies
+ (val
* HZ
/1000);
2393 add_timer(&(self
->watchdog
));
2395 /* Wait for IR-LMP to call us back */
2396 __wait_event_interruptible(self
->query_wait
,
2397 (self
->cachedaddr
!= 0 || self
->errno
== -ETIME
),
2400 /* If watchdog is still activated, kill it! */
2401 if(timer_pending(&(self
->watchdog
)))
2402 del_timer(&(self
->watchdog
));
2404 IRDA_DEBUG(1, "%s(), ...waking up !\n", __FUNCTION__
);
2410 IRDA_DEBUG(1, "%s(), found immediately !\n",
2413 /* Tell IrLMP that we have been notified */
2414 irlmp_update_client(self
->ckey
, self
->mask
.word
,
2417 /* Check if the we got some results */
2418 if (!self
->cachedaddr
)
2419 return -EAGAIN
; /* Didn't find any devices */
2420 daddr
= self
->cachedaddr
;
2422 self
->cachedaddr
= 0;
2424 /* We return the daddr of the device that trigger the
2425 * wakeup. As irlmp pass us only the new devices, we
2426 * are sure that it's not an old device.
2427 * If the user want more details, he should query
2428 * the whole discovery log and pick one device...
2430 if (put_user(daddr
, (int __user
*)optval
))
2435 return -ENOPROTOOPT
;
2441 static struct net_proto_family irda_family_ops
= {
2443 .create
= irda_create
,
2444 .owner
= THIS_MODULE
,
2447 static const struct proto_ops
SOCKOPS_WRAPPED(irda_stream_ops
) = {
2449 .owner
= THIS_MODULE
,
2450 .release
= irda_release
,
2452 .connect
= irda_connect
,
2453 .socketpair
= sock_no_socketpair
,
2454 .accept
= irda_accept
,
2455 .getname
= irda_getname
,
2457 .ioctl
= irda_ioctl
,
2458 #ifdef CONFIG_COMPAT
2459 .compat_ioctl
= irda_compat_ioctl
,
2461 .listen
= irda_listen
,
2462 .shutdown
= irda_shutdown
,
2463 .setsockopt
= irda_setsockopt
,
2464 .getsockopt
= irda_getsockopt
,
2465 .sendmsg
= irda_sendmsg
,
2466 .recvmsg
= irda_recvmsg_stream
,
2467 .mmap
= sock_no_mmap
,
2468 .sendpage
= sock_no_sendpage
,
2471 static const struct proto_ops
SOCKOPS_WRAPPED(irda_seqpacket_ops
) = {
2473 .owner
= THIS_MODULE
,
2474 .release
= irda_release
,
2476 .connect
= irda_connect
,
2477 .socketpair
= sock_no_socketpair
,
2478 .accept
= irda_accept
,
2479 .getname
= irda_getname
,
2480 .poll
= datagram_poll
,
2481 .ioctl
= irda_ioctl
,
2482 #ifdef CONFIG_COMPAT
2483 .compat_ioctl
= irda_compat_ioctl
,
2485 .listen
= irda_listen
,
2486 .shutdown
= irda_shutdown
,
2487 .setsockopt
= irda_setsockopt
,
2488 .getsockopt
= irda_getsockopt
,
2489 .sendmsg
= irda_sendmsg
,
2490 .recvmsg
= irda_recvmsg_dgram
,
2491 .mmap
= sock_no_mmap
,
2492 .sendpage
= sock_no_sendpage
,
2495 static const struct proto_ops
SOCKOPS_WRAPPED(irda_dgram_ops
) = {
2497 .owner
= THIS_MODULE
,
2498 .release
= irda_release
,
2500 .connect
= irda_connect
,
2501 .socketpair
= sock_no_socketpair
,
2502 .accept
= irda_accept
,
2503 .getname
= irda_getname
,
2504 .poll
= datagram_poll
,
2505 .ioctl
= irda_ioctl
,
2506 #ifdef CONFIG_COMPAT
2507 .compat_ioctl
= irda_compat_ioctl
,
2509 .listen
= irda_listen
,
2510 .shutdown
= irda_shutdown
,
2511 .setsockopt
= irda_setsockopt
,
2512 .getsockopt
= irda_getsockopt
,
2513 .sendmsg
= irda_sendmsg_dgram
,
2514 .recvmsg
= irda_recvmsg_dgram
,
2515 .mmap
= sock_no_mmap
,
2516 .sendpage
= sock_no_sendpage
,
2519 #ifdef CONFIG_IRDA_ULTRA
2520 static const struct proto_ops
SOCKOPS_WRAPPED(irda_ultra_ops
) = {
2522 .owner
= THIS_MODULE
,
2523 .release
= irda_release
,
2525 .connect
= sock_no_connect
,
2526 .socketpair
= sock_no_socketpair
,
2527 .accept
= sock_no_accept
,
2528 .getname
= irda_getname
,
2529 .poll
= datagram_poll
,
2530 .ioctl
= irda_ioctl
,
2531 #ifdef CONFIG_COMPAT
2532 .compat_ioctl
= irda_compat_ioctl
,
2534 .listen
= sock_no_listen
,
2535 .shutdown
= irda_shutdown
,
2536 .setsockopt
= irda_setsockopt
,
2537 .getsockopt
= irda_getsockopt
,
2538 .sendmsg
= irda_sendmsg_ultra
,
2539 .recvmsg
= irda_recvmsg_dgram
,
2540 .mmap
= sock_no_mmap
,
2541 .sendpage
= sock_no_sendpage
,
2543 #endif /* CONFIG_IRDA_ULTRA */
2545 SOCKOPS_WRAP(irda_stream
, PF_IRDA
);
2546 SOCKOPS_WRAP(irda_seqpacket
, PF_IRDA
);
2547 SOCKOPS_WRAP(irda_dgram
, PF_IRDA
);
2548 #ifdef CONFIG_IRDA_ULTRA
2549 SOCKOPS_WRAP(irda_ultra
, PF_IRDA
);
2550 #endif /* CONFIG_IRDA_ULTRA */
2553 * Function irsock_init (pro)
2555 * Initialize IrDA protocol
2558 int __init
irsock_init(void)
2560 int rc
= proto_register(&irda_proto
, 0);
2563 rc
= sock_register(&irda_family_ops
);
2569 * Function irsock_cleanup (void)
2571 * Remove IrDA protocol
2574 void irsock_cleanup(void)
2576 sock_unregister(PF_IRDA
);
2577 proto_unregister(&irda_proto
);