2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
25 /* Bluetooth HCI sockets. */
27 #include <linux/export.h>
28 #include <asm/unaligned.h>
30 #include <net/bluetooth/bluetooth.h>
31 #include <net/bluetooth/hci_core.h>
32 #include <net/bluetooth/hci_mon.h>
34 static atomic_t monitor_promisc = ATOMIC_INIT(0);
36 /* ----- HCI socket interface ----- */
38 static inline int hci_test_bit(int nr, void *addr)
40 return *((__u32 *) addr + (nr >> 5)) & ((__u32) 1 << (nr & 31));
44 static struct hci_sec_filter hci_sec_filter = {
48 { 0x1000d9fe, 0x0000b00c },
53 { 0xbe000006, 0x00000001, 0x00000000, 0x00 },
55 { 0x00005200, 0x00000000, 0x00000000, 0x00 },
57 { 0xaab00200, 0x2b402aaa, 0x05220154, 0x00 },
59 { 0x000002be, 0x00000000, 0x00000000, 0x00 },
60 /* OGF_STATUS_PARAM */
61 { 0x000000ea, 0x00000000, 0x00000000, 0x00 }
65 static struct bt_sock_list hci_sk_list = {
66 .lock = __RW_LOCK_UNLOCKED(hci_sk_list.lock)
69 static bool is_filtered_packet(struct sock *sk, struct sk_buff *skb)
71 struct hci_filter *flt;
72 int flt_type, flt_event;
75 flt = &hci_pi(sk)->filter;
77 if (bt_cb(skb)->pkt_type == HCI_VENDOR_PKT)
80 flt_type = bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS;
82 if (!test_bit(flt_type, &flt->type_mask))
85 /* Extra filter for event packets only */
86 if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT)
89 flt_event = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
91 if (!hci_test_bit(flt_event, &flt->event_mask))
94 /* Check filter only when opcode is set */
98 if (flt_event == HCI_EV_CMD_COMPLETE &&
99 flt->opcode != get_unaligned((__le16 *)(skb->data + 3)))
102 if (flt_event == HCI_EV_CMD_STATUS &&
103 flt->opcode != get_unaligned((__le16 *)(skb->data + 4)))
109 /* Send frame to RAW socket */
110 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
113 struct sk_buff *skb_copy = NULL;
115 BT_DBG("hdev %p len %d", hdev, skb->len);
117 read_lock(&hci_sk_list.lock);
119 sk_for_each(sk, &hci_sk_list.head) {
120 struct sk_buff *nskb;
122 if (sk->sk_state != BT_BOUND || hci_pi(sk)->hdev != hdev)
125 /* Don't send frame to the socket it came from */
129 if (hci_pi(sk)->channel == HCI_CHANNEL_RAW) {
130 if (is_filtered_packet(sk, skb))
132 } else if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
133 if (!bt_cb(skb)->incoming)
135 if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT &&
136 bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT &&
137 bt_cb(skb)->pkt_type != HCI_SCODATA_PKT)
140 /* Don't send frame to other channel types */
145 /* Create a private copy with headroom */
146 skb_copy = __pskb_copy(skb, 1, GFP_ATOMIC);
150 /* Put type byte before the data */
151 memcpy(skb_push(skb_copy, 1), &bt_cb(skb)->pkt_type, 1);
154 nskb = skb_clone(skb_copy, GFP_ATOMIC);
158 if (sock_queue_rcv_skb(sk, nskb))
162 read_unlock(&hci_sk_list.lock);
167 /* Send frame to control socket */
168 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk)
172 BT_DBG("len %d", skb->len);
174 read_lock(&hci_sk_list.lock);
176 sk_for_each(sk, &hci_sk_list.head) {
177 struct sk_buff *nskb;
179 /* Skip the original socket */
183 if (sk->sk_state != BT_BOUND)
186 if (hci_pi(sk)->channel != HCI_CHANNEL_CONTROL)
189 nskb = skb_clone(skb, GFP_ATOMIC);
193 if (sock_queue_rcv_skb(sk, nskb))
197 read_unlock(&hci_sk_list.lock);
200 /* Send frame to monitor socket */
201 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb)
204 struct sk_buff *skb_copy = NULL;
207 if (!atomic_read(&monitor_promisc))
210 BT_DBG("hdev %p len %d", hdev, skb->len);
212 switch (bt_cb(skb)->pkt_type) {
213 case HCI_COMMAND_PKT:
214 opcode = __constant_cpu_to_le16(HCI_MON_COMMAND_PKT);
217 opcode = __constant_cpu_to_le16(HCI_MON_EVENT_PKT);
219 case HCI_ACLDATA_PKT:
220 if (bt_cb(skb)->incoming)
221 opcode = __constant_cpu_to_le16(HCI_MON_ACL_RX_PKT);
223 opcode = __constant_cpu_to_le16(HCI_MON_ACL_TX_PKT);
225 case HCI_SCODATA_PKT:
226 if (bt_cb(skb)->incoming)
227 opcode = __constant_cpu_to_le16(HCI_MON_SCO_RX_PKT);
229 opcode = __constant_cpu_to_le16(HCI_MON_SCO_TX_PKT);
235 read_lock(&hci_sk_list.lock);
237 sk_for_each(sk, &hci_sk_list.head) {
238 struct sk_buff *nskb;
240 if (sk->sk_state != BT_BOUND)
243 if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR)
247 struct hci_mon_hdr *hdr;
249 /* Create a private copy with headroom */
250 skb_copy = __pskb_copy(skb, HCI_MON_HDR_SIZE,
255 /* Put header before the data */
256 hdr = (void *) skb_push(skb_copy, HCI_MON_HDR_SIZE);
257 hdr->opcode = opcode;
258 hdr->index = cpu_to_le16(hdev->id);
259 hdr->len = cpu_to_le16(skb->len);
262 nskb = skb_clone(skb_copy, GFP_ATOMIC);
266 if (sock_queue_rcv_skb(sk, nskb))
270 read_unlock(&hci_sk_list.lock);
275 static void send_monitor_event(struct sk_buff *skb)
279 BT_DBG("len %d", skb->len);
281 read_lock(&hci_sk_list.lock);
283 sk_for_each(sk, &hci_sk_list.head) {
284 struct sk_buff *nskb;
286 if (sk->sk_state != BT_BOUND)
289 if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR)
292 nskb = skb_clone(skb, GFP_ATOMIC);
296 if (sock_queue_rcv_skb(sk, nskb))
300 read_unlock(&hci_sk_list.lock);
303 static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event)
305 struct hci_mon_hdr *hdr;
306 struct hci_mon_new_index *ni;
312 skb = bt_skb_alloc(HCI_MON_NEW_INDEX_SIZE, GFP_ATOMIC);
316 ni = (void *) skb_put(skb, HCI_MON_NEW_INDEX_SIZE);
317 ni->type = hdev->dev_type;
319 bacpy(&ni->bdaddr, &hdev->bdaddr);
320 memcpy(ni->name, hdev->name, 8);
322 opcode = __constant_cpu_to_le16(HCI_MON_NEW_INDEX);
326 skb = bt_skb_alloc(0, GFP_ATOMIC);
330 opcode = __constant_cpu_to_le16(HCI_MON_DEL_INDEX);
337 __net_timestamp(skb);
339 hdr = (void *) skb_push(skb, HCI_MON_HDR_SIZE);
340 hdr->opcode = opcode;
341 hdr->index = cpu_to_le16(hdev->id);
342 hdr->len = cpu_to_le16(skb->len - HCI_MON_HDR_SIZE);
347 static void send_monitor_replay(struct sock *sk)
349 struct hci_dev *hdev;
351 read_lock(&hci_dev_list_lock);
353 list_for_each_entry(hdev, &hci_dev_list, list) {
356 skb = create_monitor_event(hdev, HCI_DEV_REG);
360 if (sock_queue_rcv_skb(sk, skb))
364 read_unlock(&hci_dev_list_lock);
367 /* Generate internal stack event */
368 static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
370 struct hci_event_hdr *hdr;
371 struct hci_ev_stack_internal *ev;
374 skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
378 hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
379 hdr->evt = HCI_EV_STACK_INTERNAL;
380 hdr->plen = sizeof(*ev) + dlen;
382 ev = (void *) skb_put(skb, sizeof(*ev) + dlen);
384 memcpy(ev->data, data, dlen);
386 bt_cb(skb)->incoming = 1;
387 __net_timestamp(skb);
389 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
390 skb->dev = (void *) hdev;
391 hci_send_to_sock(hdev, skb);
395 void hci_sock_dev_event(struct hci_dev *hdev, int event)
397 struct hci_ev_si_device ev;
399 BT_DBG("hdev %s event %d", hdev->name, event);
401 /* Send event to monitor */
402 if (atomic_read(&monitor_promisc)) {
405 skb = create_monitor_event(hdev, event);
407 send_monitor_event(skb);
412 /* Send event to sockets */
414 ev.dev_id = hdev->id;
415 hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev);
417 if (event == HCI_DEV_UNREG) {
420 /* Detach sockets from device */
421 read_lock(&hci_sk_list.lock);
422 sk_for_each(sk, &hci_sk_list.head) {
423 bh_lock_sock_nested(sk);
424 if (hci_pi(sk)->hdev == hdev) {
425 hci_pi(sk)->hdev = NULL;
427 sk->sk_state = BT_OPEN;
428 sk->sk_state_change(sk);
434 read_unlock(&hci_sk_list.lock);
438 static int hci_sock_release(struct socket *sock)
440 struct sock *sk = sock->sk;
441 struct hci_dev *hdev;
443 BT_DBG("sock %p sk %p", sock, sk);
448 hdev = hci_pi(sk)->hdev;
450 if (hci_pi(sk)->channel == HCI_CHANNEL_MONITOR)
451 atomic_dec(&monitor_promisc);
453 bt_sock_unlink(&hci_sk_list, sk);
456 if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
457 mgmt_index_added(hdev);
458 clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags);
459 hci_dev_close(hdev->id);
462 atomic_dec(&hdev->promisc);
468 skb_queue_purge(&sk->sk_receive_queue);
469 skb_queue_purge(&sk->sk_write_queue);
475 static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg)
480 if (copy_from_user(&bdaddr, arg, sizeof(bdaddr)))
485 err = hci_blacklist_add(hdev, &bdaddr, 0);
487 hci_dev_unlock(hdev);
492 static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg)
497 if (copy_from_user(&bdaddr, arg, sizeof(bdaddr)))
502 err = hci_blacklist_del(hdev, &bdaddr, 0);
504 hci_dev_unlock(hdev);
509 /* Ioctls that require bound socket */
510 static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
513 struct hci_dev *hdev = hci_pi(sk)->hdev;
518 if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags))
523 if (!capable(CAP_NET_ADMIN))
526 if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
530 set_bit(HCI_RAW, &hdev->flags);
532 clear_bit(HCI_RAW, &hdev->flags);
537 return hci_get_conn_info(hdev, (void __user *) arg);
540 return hci_get_auth_info(hdev, (void __user *) arg);
543 if (!capable(CAP_NET_ADMIN))
545 return hci_sock_blacklist_add(hdev, (void __user *) arg);
548 if (!capable(CAP_NET_ADMIN))
550 return hci_sock_blacklist_del(hdev, (void __user *) arg);
554 return hdev->ioctl(hdev, cmd, arg);
559 static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
562 void __user *argp = (void __user *) arg;
563 struct sock *sk = sock->sk;
566 BT_DBG("cmd %x arg %lx", cmd, arg);
570 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
579 return hci_get_dev_list(argp);
582 return hci_get_dev_info(argp);
585 return hci_get_conn_list(argp);
588 if (!capable(CAP_NET_ADMIN))
590 return hci_dev_open(arg);
593 if (!capable(CAP_NET_ADMIN))
595 return hci_dev_close(arg);
598 if (!capable(CAP_NET_ADMIN))
600 return hci_dev_reset(arg);
603 if (!capable(CAP_NET_ADMIN))
605 return hci_dev_reset_stat(arg);
615 if (!capable(CAP_NET_ADMIN))
617 return hci_dev_cmd(cmd, argp);
620 return hci_inquiry(argp);
625 err = hci_sock_bound_ioctl(sk, cmd, arg);
632 static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
635 struct sockaddr_hci haddr;
636 struct sock *sk = sock->sk;
637 struct hci_dev *hdev = NULL;
640 BT_DBG("sock %p sk %p", sock, sk);
645 memset(&haddr, 0, sizeof(haddr));
646 len = min_t(unsigned int, sizeof(haddr), addr_len);
647 memcpy(&haddr, addr, len);
649 if (haddr.hci_family != AF_BLUETOOTH)
654 if (sk->sk_state == BT_BOUND) {
659 switch (haddr.hci_channel) {
660 case HCI_CHANNEL_RAW:
661 if (hci_pi(sk)->hdev) {
666 if (haddr.hci_dev != HCI_DEV_NONE) {
667 hdev = hci_dev_get(haddr.hci_dev);
673 atomic_inc(&hdev->promisc);
676 hci_pi(sk)->hdev = hdev;
679 case HCI_CHANNEL_USER:
680 if (hci_pi(sk)->hdev) {
685 if (haddr.hci_dev == HCI_DEV_NONE) {
690 if (!capable(CAP_NET_ADMIN)) {
695 hdev = hci_dev_get(haddr.hci_dev);
701 if (test_bit(HCI_UP, &hdev->flags) ||
702 test_bit(HCI_INIT, &hdev->flags) ||
703 test_bit(HCI_SETUP, &hdev->dev_flags)) {
709 if (test_and_set_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
715 mgmt_index_removed(hdev);
717 err = hci_dev_open(hdev->id);
719 clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags);
724 atomic_inc(&hdev->promisc);
726 hci_pi(sk)->hdev = hdev;
729 case HCI_CHANNEL_CONTROL:
730 if (haddr.hci_dev != HCI_DEV_NONE) {
735 if (!capable(CAP_NET_ADMIN)) {
742 case HCI_CHANNEL_MONITOR:
743 if (haddr.hci_dev != HCI_DEV_NONE) {
748 if (!capable(CAP_NET_RAW)) {
753 send_monitor_replay(sk);
755 atomic_inc(&monitor_promisc);
764 hci_pi(sk)->channel = haddr.hci_channel;
765 sk->sk_state = BT_BOUND;
772 static int hci_sock_getname(struct socket *sock, struct sockaddr *addr,
773 int *addr_len, int peer)
775 struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
776 struct sock *sk = sock->sk;
777 struct hci_dev *hdev;
780 BT_DBG("sock %p sk %p", sock, sk);
787 hdev = hci_pi(sk)->hdev;
793 *addr_len = sizeof(*haddr);
794 haddr->hci_family = AF_BLUETOOTH;
795 haddr->hci_dev = hdev->id;
796 haddr->hci_channel= hci_pi(sk)->channel;
803 static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg,
806 __u32 mask = hci_pi(sk)->cmsg_mask;
808 if (mask & HCI_CMSG_DIR) {
809 int incoming = bt_cb(skb)->incoming;
810 put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming),
814 if (mask & HCI_CMSG_TSTAMP) {
816 struct compat_timeval ctv;
822 skb_get_timestamp(skb, &tv);
827 if (!COMPAT_USE_64BIT_TIME &&
828 (msg->msg_flags & MSG_CMSG_COMPAT)) {
829 ctv.tv_sec = tv.tv_sec;
830 ctv.tv_usec = tv.tv_usec;
836 put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, len, data);
840 static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
841 struct msghdr *msg, size_t len, int flags)
843 int noblock = flags & MSG_DONTWAIT;
844 struct sock *sk = sock->sk;
848 BT_DBG("sock %p, sk %p", sock, sk);
850 if (flags & (MSG_OOB))
853 if (sk->sk_state == BT_CLOSED)
856 skb = skb_recv_datagram(sk, flags, noblock, &err);
860 msg->msg_namelen = 0;
864 msg->msg_flags |= MSG_TRUNC;
868 skb_reset_transport_header(skb);
869 err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
871 switch (hci_pi(sk)->channel) {
872 case HCI_CHANNEL_RAW:
873 hci_sock_cmsg(sk, msg, skb);
875 case HCI_CHANNEL_USER:
876 case HCI_CHANNEL_CONTROL:
877 case HCI_CHANNEL_MONITOR:
878 sock_recv_timestamp(msg, sk, skb);
882 skb_free_datagram(sk, skb);
884 return err ? : copied;
887 static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
888 struct msghdr *msg, size_t len)
890 struct sock *sk = sock->sk;
891 struct hci_dev *hdev;
895 BT_DBG("sock %p sk %p", sock, sk);
897 if (msg->msg_flags & MSG_OOB)
900 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
903 if (len < 4 || len > HCI_MAX_FRAME_SIZE)
908 switch (hci_pi(sk)->channel) {
909 case HCI_CHANNEL_RAW:
910 case HCI_CHANNEL_USER:
912 case HCI_CHANNEL_CONTROL:
913 err = mgmt_control(sk, msg, len);
915 case HCI_CHANNEL_MONITOR:
923 hdev = hci_pi(sk)->hdev;
929 if (!test_bit(HCI_UP, &hdev->flags)) {
934 skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err);
938 if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
943 bt_cb(skb)->pkt_type = *((unsigned char *) skb->data);
945 skb->dev = (void *) hdev;
947 if (hci_pi(sk)->channel == HCI_CHANNEL_RAW &&
948 bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
949 u16 opcode = get_unaligned_le16(skb->data);
950 u16 ogf = hci_opcode_ogf(opcode);
951 u16 ocf = hci_opcode_ocf(opcode);
953 if (((ogf > HCI_SFLT_MAX_OGF) ||
954 !hci_test_bit(ocf & HCI_FLT_OCF_BITS,
955 &hci_sec_filter.ocf_mask[ogf])) &&
956 !capable(CAP_NET_RAW)) {
961 if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) {
962 skb_queue_tail(&hdev->raw_q, skb);
963 queue_work(hdev->workqueue, &hdev->tx_work);
965 /* Stand-alone HCI commands must be flaged as
966 * single-command requests.
968 bt_cb(skb)->req.start = true;
970 skb_queue_tail(&hdev->cmd_q, skb);
971 queue_work(hdev->workqueue, &hdev->cmd_work);
974 if (!capable(CAP_NET_RAW)) {
979 if (hci_pi(sk)->channel == HCI_CHANNEL_USER &&
980 bt_cb(skb)->pkt_type != HCI_COMMAND_PKT &&
981 bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT &&
982 bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) {
987 skb_queue_tail(&hdev->raw_q, skb);
988 queue_work(hdev->workqueue, &hdev->tx_work);
1002 static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
1003 char __user *optval, unsigned int len)
1005 struct hci_ufilter uf = { .opcode = 0 };
1006 struct sock *sk = sock->sk;
1007 int err = 0, opt = 0;
1009 BT_DBG("sk %p, opt %d", sk, optname);
1013 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
1020 if (get_user(opt, (int __user *)optval)) {
1026 hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR;
1028 hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR;
1031 case HCI_TIME_STAMP:
1032 if (get_user(opt, (int __user *)optval)) {
1038 hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP;
1040 hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP;
1045 struct hci_filter *f = &hci_pi(sk)->filter;
1047 uf.type_mask = f->type_mask;
1048 uf.opcode = f->opcode;
1049 uf.event_mask[0] = *((u32 *) f->event_mask + 0);
1050 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
1053 len = min_t(unsigned int, len, sizeof(uf));
1054 if (copy_from_user(&uf, optval, len)) {
1059 if (!capable(CAP_NET_RAW)) {
1060 uf.type_mask &= hci_sec_filter.type_mask;
1061 uf.event_mask[0] &= *((u32 *) hci_sec_filter.event_mask + 0);
1062 uf.event_mask[1] &= *((u32 *) hci_sec_filter.event_mask + 1);
1066 struct hci_filter *f = &hci_pi(sk)->filter;
1068 f->type_mask = uf.type_mask;
1069 f->opcode = uf.opcode;
1070 *((u32 *) f->event_mask + 0) = uf.event_mask[0];
1071 *((u32 *) f->event_mask + 1) = uf.event_mask[1];
1085 static int hci_sock_getsockopt(struct socket *sock, int level, int optname,
1086 char __user *optval, int __user *optlen)
1088 struct hci_ufilter uf;
1089 struct sock *sk = sock->sk;
1090 int len, opt, err = 0;
1092 BT_DBG("sk %p, opt %d", sk, optname);
1094 if (get_user(len, optlen))
1099 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
1106 if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR)
1111 if (put_user(opt, optval))
1115 case HCI_TIME_STAMP:
1116 if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP)
1121 if (put_user(opt, optval))
1127 struct hci_filter *f = &hci_pi(sk)->filter;
1129 memset(&uf, 0, sizeof(uf));
1130 uf.type_mask = f->type_mask;
1131 uf.opcode = f->opcode;
1132 uf.event_mask[0] = *((u32 *) f->event_mask + 0);
1133 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
1136 len = min_t(unsigned int, len, sizeof(uf));
1137 if (copy_to_user(optval, &uf, len))
1151 static const struct proto_ops hci_sock_ops = {
1152 .family = PF_BLUETOOTH,
1153 .owner = THIS_MODULE,
1154 .release = hci_sock_release,
1155 .bind = hci_sock_bind,
1156 .getname = hci_sock_getname,
1157 .sendmsg = hci_sock_sendmsg,
1158 .recvmsg = hci_sock_recvmsg,
1159 .ioctl = hci_sock_ioctl,
1160 .poll = datagram_poll,
1161 .listen = sock_no_listen,
1162 .shutdown = sock_no_shutdown,
1163 .setsockopt = hci_sock_setsockopt,
1164 .getsockopt = hci_sock_getsockopt,
1165 .connect = sock_no_connect,
1166 .socketpair = sock_no_socketpair,
1167 .accept = sock_no_accept,
1168 .mmap = sock_no_mmap
1171 static struct proto hci_sk_proto = {
1173 .owner = THIS_MODULE,
1174 .obj_size = sizeof(struct hci_pinfo)
1177 static int hci_sock_create(struct net *net, struct socket *sock, int protocol,
1182 BT_DBG("sock %p", sock);
1184 if (sock->type != SOCK_RAW)
1185 return -ESOCKTNOSUPPORT;
1187 sock->ops = &hci_sock_ops;
1189 sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto);
1193 sock_init_data(sock, sk);
1195 sock_reset_flag(sk, SOCK_ZAPPED);
1197 sk->sk_protocol = protocol;
1199 sock->state = SS_UNCONNECTED;
1200 sk->sk_state = BT_OPEN;
1202 bt_sock_link(&hci_sk_list, sk);
1206 static const struct net_proto_family hci_sock_family_ops = {
1207 .family = PF_BLUETOOTH,
1208 .owner = THIS_MODULE,
1209 .create = hci_sock_create,
1212 int __init hci_sock_init(void)
1216 err = proto_register(&hci_sk_proto, 0);
1220 err = bt_sock_register(BTPROTO_HCI, &hci_sock_family_ops);
1222 BT_ERR("HCI socket registration failed");
1226 err = bt_procfs_init(&init_net, "hci", &hci_sk_list, NULL);
1228 BT_ERR("Failed to create HCI proc file");
1229 bt_sock_unregister(BTPROTO_HCI);
1233 BT_INFO("HCI socket layer initialized");
1238 proto_unregister(&hci_sk_proto);
1242 void hci_sock_cleanup(void)
1244 bt_procfs_cleanup(&init_net, "hci");
1245 bt_sock_unregister(BTPROTO_HCI);
1246 proto_unregister(&hci_sk_proto);