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_fclone(skb, 1, GFP_ATOMIC, true);
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 = cpu_to_le16(HCI_MON_COMMAND_PKT);
217 opcode = cpu_to_le16(HCI_MON_EVENT_PKT);
219 case HCI_ACLDATA_PKT:
220 if (bt_cb(skb)->incoming)
221 opcode = cpu_to_le16(HCI_MON_ACL_RX_PKT);
223 opcode = cpu_to_le16(HCI_MON_ACL_TX_PKT);
225 case HCI_SCODATA_PKT:
226 if (bt_cb(skb)->incoming)
227 opcode = cpu_to_le16(HCI_MON_SCO_RX_PKT);
229 opcode = 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_fclone(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 = cpu_to_le16(HCI_MON_NEW_INDEX);
326 skb = bt_skb_alloc(0, GFP_ATOMIC);
330 opcode = 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 hci_send_to_sock(hdev, skb);
394 void hci_sock_dev_event(struct hci_dev *hdev, int event)
396 struct hci_ev_si_device ev;
398 BT_DBG("hdev %s event %d", hdev->name, event);
400 /* Send event to monitor */
401 if (atomic_read(&monitor_promisc)) {
404 skb = create_monitor_event(hdev, event);
406 send_monitor_event(skb);
411 /* Send event to sockets */
413 ev.dev_id = hdev->id;
414 hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev);
416 if (event == HCI_DEV_UNREG) {
419 /* Detach sockets from device */
420 read_lock(&hci_sk_list.lock);
421 sk_for_each(sk, &hci_sk_list.head) {
422 bh_lock_sock_nested(sk);
423 if (hci_pi(sk)->hdev == hdev) {
424 hci_pi(sk)->hdev = NULL;
426 sk->sk_state = BT_OPEN;
427 sk->sk_state_change(sk);
433 read_unlock(&hci_sk_list.lock);
437 static int hci_sock_release(struct socket *sock)
439 struct sock *sk = sock->sk;
440 struct hci_dev *hdev;
442 BT_DBG("sock %p sk %p", sock, sk);
447 hdev = hci_pi(sk)->hdev;
449 if (hci_pi(sk)->channel == HCI_CHANNEL_MONITOR)
450 atomic_dec(&monitor_promisc);
452 bt_sock_unlink(&hci_sk_list, sk);
455 if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
456 mgmt_index_added(hdev);
457 clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags);
458 hci_dev_close(hdev->id);
461 atomic_dec(&hdev->promisc);
467 skb_queue_purge(&sk->sk_receive_queue);
468 skb_queue_purge(&sk->sk_write_queue);
474 static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg)
479 if (copy_from_user(&bdaddr, arg, sizeof(bdaddr)))
484 err = hci_bdaddr_list_add(&hdev->blacklist, &bdaddr, BDADDR_BREDR);
486 hci_dev_unlock(hdev);
491 static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg)
496 if (copy_from_user(&bdaddr, arg, sizeof(bdaddr)))
501 err = hci_bdaddr_list_del(&hdev->blacklist, &bdaddr, BDADDR_BREDR);
503 hci_dev_unlock(hdev);
508 /* Ioctls that require bound socket */
509 static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
512 struct hci_dev *hdev = hci_pi(sk)->hdev;
517 if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags))
520 if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags))
523 if (hdev->dev_type != HCI_BREDR)
528 if (!capable(CAP_NET_ADMIN))
533 return hci_get_conn_info(hdev, (void __user *) arg);
536 return hci_get_auth_info(hdev, (void __user *) arg);
539 if (!capable(CAP_NET_ADMIN))
541 return hci_sock_blacklist_add(hdev, (void __user *) arg);
544 if (!capable(CAP_NET_ADMIN))
546 return hci_sock_blacklist_del(hdev, (void __user *) arg);
552 static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
555 void __user *argp = (void __user *) arg;
556 struct sock *sk = sock->sk;
559 BT_DBG("cmd %x arg %lx", cmd, arg);
563 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
572 return hci_get_dev_list(argp);
575 return hci_get_dev_info(argp);
578 return hci_get_conn_list(argp);
581 if (!capable(CAP_NET_ADMIN))
583 return hci_dev_open(arg);
586 if (!capable(CAP_NET_ADMIN))
588 return hci_dev_close(arg);
591 if (!capable(CAP_NET_ADMIN))
593 return hci_dev_reset(arg);
596 if (!capable(CAP_NET_ADMIN))
598 return hci_dev_reset_stat(arg);
608 if (!capable(CAP_NET_ADMIN))
610 return hci_dev_cmd(cmd, argp);
613 return hci_inquiry(argp);
618 err = hci_sock_bound_ioctl(sk, cmd, arg);
625 static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
628 struct sockaddr_hci haddr;
629 struct sock *sk = sock->sk;
630 struct hci_dev *hdev = NULL;
633 BT_DBG("sock %p sk %p", sock, sk);
638 memset(&haddr, 0, sizeof(haddr));
639 len = min_t(unsigned int, sizeof(haddr), addr_len);
640 memcpy(&haddr, addr, len);
642 if (haddr.hci_family != AF_BLUETOOTH)
647 if (sk->sk_state == BT_BOUND) {
652 switch (haddr.hci_channel) {
653 case HCI_CHANNEL_RAW:
654 if (hci_pi(sk)->hdev) {
659 if (haddr.hci_dev != HCI_DEV_NONE) {
660 hdev = hci_dev_get(haddr.hci_dev);
666 atomic_inc(&hdev->promisc);
669 hci_pi(sk)->hdev = hdev;
672 case HCI_CHANNEL_USER:
673 if (hci_pi(sk)->hdev) {
678 if (haddr.hci_dev == HCI_DEV_NONE) {
683 if (!capable(CAP_NET_ADMIN)) {
688 hdev = hci_dev_get(haddr.hci_dev);
694 if (test_bit(HCI_UP, &hdev->flags) ||
695 test_bit(HCI_INIT, &hdev->flags) ||
696 test_bit(HCI_SETUP, &hdev->dev_flags) ||
697 test_bit(HCI_CONFIG, &hdev->dev_flags)) {
703 if (test_and_set_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
709 mgmt_index_removed(hdev);
711 err = hci_dev_open(hdev->id);
713 clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags);
714 mgmt_index_added(hdev);
719 atomic_inc(&hdev->promisc);
721 hci_pi(sk)->hdev = hdev;
724 case HCI_CHANNEL_CONTROL:
725 if (haddr.hci_dev != HCI_DEV_NONE) {
730 if (!capable(CAP_NET_ADMIN)) {
737 case HCI_CHANNEL_MONITOR:
738 if (haddr.hci_dev != HCI_DEV_NONE) {
743 if (!capable(CAP_NET_RAW)) {
748 send_monitor_replay(sk);
750 atomic_inc(&monitor_promisc);
759 hci_pi(sk)->channel = haddr.hci_channel;
760 sk->sk_state = BT_BOUND;
767 static int hci_sock_getname(struct socket *sock, struct sockaddr *addr,
768 int *addr_len, int peer)
770 struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
771 struct sock *sk = sock->sk;
772 struct hci_dev *hdev;
775 BT_DBG("sock %p sk %p", sock, sk);
782 hdev = hci_pi(sk)->hdev;
788 *addr_len = sizeof(*haddr);
789 haddr->hci_family = AF_BLUETOOTH;
790 haddr->hci_dev = hdev->id;
791 haddr->hci_channel= hci_pi(sk)->channel;
798 static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg,
801 __u32 mask = hci_pi(sk)->cmsg_mask;
803 if (mask & HCI_CMSG_DIR) {
804 int incoming = bt_cb(skb)->incoming;
805 put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming),
809 if (mask & HCI_CMSG_TSTAMP) {
811 struct compat_timeval ctv;
817 skb_get_timestamp(skb, &tv);
822 if (!COMPAT_USE_64BIT_TIME &&
823 (msg->msg_flags & MSG_CMSG_COMPAT)) {
824 ctv.tv_sec = tv.tv_sec;
825 ctv.tv_usec = tv.tv_usec;
831 put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, len, data);
835 static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
836 struct msghdr *msg, size_t len, int flags)
838 int noblock = flags & MSG_DONTWAIT;
839 struct sock *sk = sock->sk;
843 BT_DBG("sock %p, sk %p", sock, sk);
845 if (flags & (MSG_OOB))
848 if (sk->sk_state == BT_CLOSED)
851 skb = skb_recv_datagram(sk, flags, noblock, &err);
857 msg->msg_flags |= MSG_TRUNC;
861 skb_reset_transport_header(skb);
862 err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
864 switch (hci_pi(sk)->channel) {
865 case HCI_CHANNEL_RAW:
866 hci_sock_cmsg(sk, msg, skb);
868 case HCI_CHANNEL_USER:
869 case HCI_CHANNEL_CONTROL:
870 case HCI_CHANNEL_MONITOR:
871 sock_recv_timestamp(msg, sk, skb);
875 skb_free_datagram(sk, skb);
877 return err ? : copied;
880 static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
881 struct msghdr *msg, size_t len)
883 struct sock *sk = sock->sk;
884 struct hci_dev *hdev;
888 BT_DBG("sock %p sk %p", sock, sk);
890 if (msg->msg_flags & MSG_OOB)
893 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
896 if (len < 4 || len > HCI_MAX_FRAME_SIZE)
901 switch (hci_pi(sk)->channel) {
902 case HCI_CHANNEL_RAW:
903 case HCI_CHANNEL_USER:
905 case HCI_CHANNEL_CONTROL:
906 err = mgmt_control(sk, msg, len);
908 case HCI_CHANNEL_MONITOR:
916 hdev = hci_pi(sk)->hdev;
922 if (!test_bit(HCI_UP, &hdev->flags)) {
927 skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err);
931 if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
936 bt_cb(skb)->pkt_type = *((unsigned char *) skb->data);
939 if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
940 /* No permission check is needed for user channel
941 * since that gets enforced when binding the socket.
943 * However check that the packet type is valid.
945 if (bt_cb(skb)->pkt_type != HCI_COMMAND_PKT &&
946 bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT &&
947 bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) {
952 skb_queue_tail(&hdev->raw_q, skb);
953 queue_work(hdev->workqueue, &hdev->tx_work);
954 } else if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
955 u16 opcode = get_unaligned_le16(skb->data);
956 u16 ogf = hci_opcode_ogf(opcode);
957 u16 ocf = hci_opcode_ocf(opcode);
959 if (((ogf > HCI_SFLT_MAX_OGF) ||
960 !hci_test_bit(ocf & HCI_FLT_OCF_BITS,
961 &hci_sec_filter.ocf_mask[ogf])) &&
962 !capable(CAP_NET_RAW)) {
968 skb_queue_tail(&hdev->raw_q, skb);
969 queue_work(hdev->workqueue, &hdev->tx_work);
971 /* Stand-alone HCI commands must be flaged as
972 * single-command requests.
974 bt_cb(skb)->req.start = true;
976 skb_queue_tail(&hdev->cmd_q, skb);
977 queue_work(hdev->workqueue, &hdev->cmd_work);
980 if (!capable(CAP_NET_RAW)) {
985 skb_queue_tail(&hdev->raw_q, skb);
986 queue_work(hdev->workqueue, &hdev->tx_work);
1000 static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
1001 char __user *optval, unsigned int len)
1003 struct hci_ufilter uf = { .opcode = 0 };
1004 struct sock *sk = sock->sk;
1005 int err = 0, opt = 0;
1007 BT_DBG("sk %p, opt %d", sk, optname);
1011 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
1018 if (get_user(opt, (int __user *)optval)) {
1024 hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR;
1026 hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR;
1029 case HCI_TIME_STAMP:
1030 if (get_user(opt, (int __user *)optval)) {
1036 hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP;
1038 hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP;
1043 struct hci_filter *f = &hci_pi(sk)->filter;
1045 uf.type_mask = f->type_mask;
1046 uf.opcode = f->opcode;
1047 uf.event_mask[0] = *((u32 *) f->event_mask + 0);
1048 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
1051 len = min_t(unsigned int, len, sizeof(uf));
1052 if (copy_from_user(&uf, optval, len)) {
1057 if (!capable(CAP_NET_RAW)) {
1058 uf.type_mask &= hci_sec_filter.type_mask;
1059 uf.event_mask[0] &= *((u32 *) hci_sec_filter.event_mask + 0);
1060 uf.event_mask[1] &= *((u32 *) hci_sec_filter.event_mask + 1);
1064 struct hci_filter *f = &hci_pi(sk)->filter;
1066 f->type_mask = uf.type_mask;
1067 f->opcode = uf.opcode;
1068 *((u32 *) f->event_mask + 0) = uf.event_mask[0];
1069 *((u32 *) f->event_mask + 1) = uf.event_mask[1];
1083 static int hci_sock_getsockopt(struct socket *sock, int level, int optname,
1084 char __user *optval, int __user *optlen)
1086 struct hci_ufilter uf;
1087 struct sock *sk = sock->sk;
1088 int len, opt, err = 0;
1090 BT_DBG("sk %p, opt %d", sk, optname);
1092 if (get_user(len, optlen))
1097 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
1104 if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR)
1109 if (put_user(opt, optval))
1113 case HCI_TIME_STAMP:
1114 if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP)
1119 if (put_user(opt, optval))
1125 struct hci_filter *f = &hci_pi(sk)->filter;
1127 memset(&uf, 0, sizeof(uf));
1128 uf.type_mask = f->type_mask;
1129 uf.opcode = f->opcode;
1130 uf.event_mask[0] = *((u32 *) f->event_mask + 0);
1131 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
1134 len = min_t(unsigned int, len, sizeof(uf));
1135 if (copy_to_user(optval, &uf, len))
1149 static const struct proto_ops hci_sock_ops = {
1150 .family = PF_BLUETOOTH,
1151 .owner = THIS_MODULE,
1152 .release = hci_sock_release,
1153 .bind = hci_sock_bind,
1154 .getname = hci_sock_getname,
1155 .sendmsg = hci_sock_sendmsg,
1156 .recvmsg = hci_sock_recvmsg,
1157 .ioctl = hci_sock_ioctl,
1158 .poll = datagram_poll,
1159 .listen = sock_no_listen,
1160 .shutdown = sock_no_shutdown,
1161 .setsockopt = hci_sock_setsockopt,
1162 .getsockopt = hci_sock_getsockopt,
1163 .connect = sock_no_connect,
1164 .socketpair = sock_no_socketpair,
1165 .accept = sock_no_accept,
1166 .mmap = sock_no_mmap
1169 static struct proto hci_sk_proto = {
1171 .owner = THIS_MODULE,
1172 .obj_size = sizeof(struct hci_pinfo)
1175 static int hci_sock_create(struct net *net, struct socket *sock, int protocol,
1180 BT_DBG("sock %p", sock);
1182 if (sock->type != SOCK_RAW)
1183 return -ESOCKTNOSUPPORT;
1185 sock->ops = &hci_sock_ops;
1187 sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto);
1191 sock_init_data(sock, sk);
1193 sock_reset_flag(sk, SOCK_ZAPPED);
1195 sk->sk_protocol = protocol;
1197 sock->state = SS_UNCONNECTED;
1198 sk->sk_state = BT_OPEN;
1200 bt_sock_link(&hci_sk_list, sk);
1204 static const struct net_proto_family hci_sock_family_ops = {
1205 .family = PF_BLUETOOTH,
1206 .owner = THIS_MODULE,
1207 .create = hci_sock_create,
1210 int __init hci_sock_init(void)
1214 err = proto_register(&hci_sk_proto, 0);
1218 err = bt_sock_register(BTPROTO_HCI, &hci_sock_family_ops);
1220 BT_ERR("HCI socket registration failed");
1224 err = bt_procfs_init(&init_net, "hci", &hci_sk_list, NULL);
1226 BT_ERR("Failed to create HCI proc file");
1227 bt_sock_unregister(BTPROTO_HCI);
1231 BT_INFO("HCI socket layer initialized");
1236 proto_unregister(&hci_sk_proto);
1240 void hci_sock_cleanup(void)
1242 bt_procfs_cleanup(&init_net, "hci");
1243 bt_sock_unregister(BTPROTO_HCI);
1244 proto_unregister(&hci_sk_proto);