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 = 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(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_blacklist_add(hdev, &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_blacklist_del(hdev, &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 (hdev->dev_type != HCI_BREDR)
525 if (!capable(CAP_NET_ADMIN))
528 if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
532 set_bit(HCI_RAW, &hdev->flags);
534 clear_bit(HCI_RAW, &hdev->flags);
539 return hci_get_conn_info(hdev, (void __user *) arg);
542 return hci_get_auth_info(hdev, (void __user *) arg);
545 if (!capable(CAP_NET_ADMIN))
547 return hci_sock_blacklist_add(hdev, (void __user *) arg);
550 if (!capable(CAP_NET_ADMIN))
552 return hci_sock_blacklist_del(hdev, (void __user *) arg);
558 static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
561 void __user *argp = (void __user *) arg;
562 struct sock *sk = sock->sk;
565 BT_DBG("cmd %x arg %lx", cmd, arg);
569 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
578 return hci_get_dev_list(argp);
581 return hci_get_dev_info(argp);
584 return hci_get_conn_list(argp);
587 if (!capable(CAP_NET_ADMIN))
589 return hci_dev_open(arg);
592 if (!capable(CAP_NET_ADMIN))
594 return hci_dev_close(arg);
597 if (!capable(CAP_NET_ADMIN))
599 return hci_dev_reset(arg);
602 if (!capable(CAP_NET_ADMIN))
604 return hci_dev_reset_stat(arg);
614 if (!capable(CAP_NET_ADMIN))
616 return hci_dev_cmd(cmd, argp);
619 return hci_inquiry(argp);
624 err = hci_sock_bound_ioctl(sk, cmd, arg);
631 static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
634 struct sockaddr_hci haddr;
635 struct sock *sk = sock->sk;
636 struct hci_dev *hdev = NULL;
639 BT_DBG("sock %p sk %p", sock, sk);
644 memset(&haddr, 0, sizeof(haddr));
645 len = min_t(unsigned int, sizeof(haddr), addr_len);
646 memcpy(&haddr, addr, len);
648 if (haddr.hci_family != AF_BLUETOOTH)
653 if (sk->sk_state == BT_BOUND) {
658 switch (haddr.hci_channel) {
659 case HCI_CHANNEL_RAW:
660 if (hci_pi(sk)->hdev) {
665 if (haddr.hci_dev != HCI_DEV_NONE) {
666 hdev = hci_dev_get(haddr.hci_dev);
672 atomic_inc(&hdev->promisc);
675 hci_pi(sk)->hdev = hdev;
678 case HCI_CHANNEL_USER:
679 if (hci_pi(sk)->hdev) {
684 if (haddr.hci_dev == HCI_DEV_NONE) {
689 if (!capable(CAP_NET_ADMIN)) {
694 hdev = hci_dev_get(haddr.hci_dev);
700 if (test_bit(HCI_UP, &hdev->flags) ||
701 test_bit(HCI_INIT, &hdev->flags) ||
702 test_bit(HCI_SETUP, &hdev->dev_flags)) {
708 if (test_and_set_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
714 mgmt_index_removed(hdev);
716 err = hci_dev_open(hdev->id);
718 clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags);
719 mgmt_index_added(hdev);
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);
862 msg->msg_flags |= MSG_TRUNC;
866 skb_reset_transport_header(skb);
867 err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
869 switch (hci_pi(sk)->channel) {
870 case HCI_CHANNEL_RAW:
871 hci_sock_cmsg(sk, msg, skb);
873 case HCI_CHANNEL_USER:
874 case HCI_CHANNEL_CONTROL:
875 case HCI_CHANNEL_MONITOR:
876 sock_recv_timestamp(msg, sk, skb);
880 skb_free_datagram(sk, skb);
882 return err ? : copied;
885 static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
886 struct msghdr *msg, size_t len)
888 struct sock *sk = sock->sk;
889 struct hci_dev *hdev;
893 BT_DBG("sock %p sk %p", sock, sk);
895 if (msg->msg_flags & MSG_OOB)
898 if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
901 if (len < 4 || len > HCI_MAX_FRAME_SIZE)
906 switch (hci_pi(sk)->channel) {
907 case HCI_CHANNEL_RAW:
908 case HCI_CHANNEL_USER:
910 case HCI_CHANNEL_CONTROL:
911 err = mgmt_control(sk, msg, len);
913 case HCI_CHANNEL_MONITOR:
921 hdev = hci_pi(sk)->hdev;
927 if (!test_bit(HCI_UP, &hdev->flags)) {
932 skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err);
936 if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
941 bt_cb(skb)->pkt_type = *((unsigned char *) skb->data);
944 if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
945 /* No permission check is needed for user channel
946 * since that gets enforced when binding the socket.
948 * However check that the packet type is valid.
950 if (bt_cb(skb)->pkt_type != HCI_COMMAND_PKT &&
951 bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT &&
952 bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) {
957 skb_queue_tail(&hdev->raw_q, skb);
958 queue_work(hdev->workqueue, &hdev->tx_work);
959 } else if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
960 u16 opcode = get_unaligned_le16(skb->data);
961 u16 ogf = hci_opcode_ogf(opcode);
962 u16 ocf = hci_opcode_ocf(opcode);
964 if (((ogf > HCI_SFLT_MAX_OGF) ||
965 !hci_test_bit(ocf & HCI_FLT_OCF_BITS,
966 &hci_sec_filter.ocf_mask[ogf])) &&
967 !capable(CAP_NET_RAW)) {
972 if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) {
973 skb_queue_tail(&hdev->raw_q, skb);
974 queue_work(hdev->workqueue, &hdev->tx_work);
976 /* Stand-alone HCI commands must be flaged as
977 * single-command requests.
979 bt_cb(skb)->req.start = true;
981 skb_queue_tail(&hdev->cmd_q, skb);
982 queue_work(hdev->workqueue, &hdev->cmd_work);
985 if (!capable(CAP_NET_RAW)) {
990 skb_queue_tail(&hdev->raw_q, skb);
991 queue_work(hdev->workqueue, &hdev->tx_work);
1005 static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
1006 char __user *optval, unsigned int len)
1008 struct hci_ufilter uf = { .opcode = 0 };
1009 struct sock *sk = sock->sk;
1010 int err = 0, opt = 0;
1012 BT_DBG("sk %p, opt %d", sk, optname);
1016 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
1023 if (get_user(opt, (int __user *)optval)) {
1029 hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR;
1031 hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR;
1034 case HCI_TIME_STAMP:
1035 if (get_user(opt, (int __user *)optval)) {
1041 hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP;
1043 hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP;
1048 struct hci_filter *f = &hci_pi(sk)->filter;
1050 uf.type_mask = f->type_mask;
1051 uf.opcode = f->opcode;
1052 uf.event_mask[0] = *((u32 *) f->event_mask + 0);
1053 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
1056 len = min_t(unsigned int, len, sizeof(uf));
1057 if (copy_from_user(&uf, optval, len)) {
1062 if (!capable(CAP_NET_RAW)) {
1063 uf.type_mask &= hci_sec_filter.type_mask;
1064 uf.event_mask[0] &= *((u32 *) hci_sec_filter.event_mask + 0);
1065 uf.event_mask[1] &= *((u32 *) hci_sec_filter.event_mask + 1);
1069 struct hci_filter *f = &hci_pi(sk)->filter;
1071 f->type_mask = uf.type_mask;
1072 f->opcode = uf.opcode;
1073 *((u32 *) f->event_mask + 0) = uf.event_mask[0];
1074 *((u32 *) f->event_mask + 1) = uf.event_mask[1];
1088 static int hci_sock_getsockopt(struct socket *sock, int level, int optname,
1089 char __user *optval, int __user *optlen)
1091 struct hci_ufilter uf;
1092 struct sock *sk = sock->sk;
1093 int len, opt, err = 0;
1095 BT_DBG("sk %p, opt %d", sk, optname);
1097 if (get_user(len, optlen))
1102 if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
1109 if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR)
1114 if (put_user(opt, optval))
1118 case HCI_TIME_STAMP:
1119 if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP)
1124 if (put_user(opt, optval))
1130 struct hci_filter *f = &hci_pi(sk)->filter;
1132 memset(&uf, 0, sizeof(uf));
1133 uf.type_mask = f->type_mask;
1134 uf.opcode = f->opcode;
1135 uf.event_mask[0] = *((u32 *) f->event_mask + 0);
1136 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
1139 len = min_t(unsigned int, len, sizeof(uf));
1140 if (copy_to_user(optval, &uf, len))
1154 static const struct proto_ops hci_sock_ops = {
1155 .family = PF_BLUETOOTH,
1156 .owner = THIS_MODULE,
1157 .release = hci_sock_release,
1158 .bind = hci_sock_bind,
1159 .getname = hci_sock_getname,
1160 .sendmsg = hci_sock_sendmsg,
1161 .recvmsg = hci_sock_recvmsg,
1162 .ioctl = hci_sock_ioctl,
1163 .poll = datagram_poll,
1164 .listen = sock_no_listen,
1165 .shutdown = sock_no_shutdown,
1166 .setsockopt = hci_sock_setsockopt,
1167 .getsockopt = hci_sock_getsockopt,
1168 .connect = sock_no_connect,
1169 .socketpair = sock_no_socketpair,
1170 .accept = sock_no_accept,
1171 .mmap = sock_no_mmap
1174 static struct proto hci_sk_proto = {
1176 .owner = THIS_MODULE,
1177 .obj_size = sizeof(struct hci_pinfo)
1180 static int hci_sock_create(struct net *net, struct socket *sock, int protocol,
1185 BT_DBG("sock %p", sock);
1187 if (sock->type != SOCK_RAW)
1188 return -ESOCKTNOSUPPORT;
1190 sock->ops = &hci_sock_ops;
1192 sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto);
1196 sock_init_data(sock, sk);
1198 sock_reset_flag(sk, SOCK_ZAPPED);
1200 sk->sk_protocol = protocol;
1202 sock->state = SS_UNCONNECTED;
1203 sk->sk_state = BT_OPEN;
1205 bt_sock_link(&hci_sk_list, sk);
1209 static const struct net_proto_family hci_sock_family_ops = {
1210 .family = PF_BLUETOOTH,
1211 .owner = THIS_MODULE,
1212 .create = hci_sock_create,
1215 int __init hci_sock_init(void)
1219 err = proto_register(&hci_sk_proto, 0);
1223 err = bt_sock_register(BTPROTO_HCI, &hci_sock_family_ops);
1225 BT_ERR("HCI socket registration failed");
1229 err = bt_procfs_init(&init_net, "hci", &hci_sk_list, NULL);
1231 BT_ERR("Failed to create HCI proc file");
1232 bt_sock_unregister(BTPROTO_HCI);
1236 BT_INFO("HCI socket layer initialized");
1241 proto_unregister(&hci_sk_proto);
1245 void hci_sock_cleanup(void)
1247 bt_procfs_cleanup(&init_net, "hci");
1248 bt_sock_unregister(BTPROTO_HCI);
1249 proto_unregister(&hci_sk_proto);