/*
|
/*
|
BlueZ - Bluetooth protocol stack for Linux
|
BlueZ - Bluetooth protocol stack for Linux
|
Copyright (C) 2000-2001 Qualcomm Incorporated
|
Copyright (C) 2000-2001 Qualcomm Incorporated
|
|
|
Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
|
Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
|
|
|
This program is free software; you can redistribute it and/or modify
|
This program is free software; you can redistribute it and/or modify
|
it under the terms of the GNU General Public License version 2 as
|
it under the terms of the GNU General Public License version 2 as
|
published by the Free Software Foundation;
|
published by the Free Software Foundation;
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
|
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
|
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
|
CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
|
CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
|
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
|
COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
|
COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
|
SOFTWARE IS DISCLAIMED.
|
SOFTWARE IS DISCLAIMED.
|
*/
|
*/
|
|
|
/*
|
/*
|
* BlueZ HCI socket layer.
|
* BlueZ HCI socket layer.
|
*
|
*
|
* $Id: hci_sock.c,v 1.1.1.1 2004-04-15 01:17:06 phoenix Exp $
|
* $Id: hci_sock.c,v 1.1.1.1 2004-04-15 01:17:06 phoenix Exp $
|
*/
|
*/
|
|
|
#include <linux/config.h>
|
#include <linux/config.h>
|
#include <linux/module.h>
|
#include <linux/module.h>
|
|
|
#include <linux/types.h>
|
#include <linux/types.h>
|
#include <linux/errno.h>
|
#include <linux/errno.h>
|
#include <linux/kernel.h>
|
#include <linux/kernel.h>
|
#include <linux/major.h>
|
#include <linux/major.h>
|
#include <linux/sched.h>
|
#include <linux/sched.h>
|
#include <linux/slab.h>
|
#include <linux/slab.h>
|
#include <linux/poll.h>
|
#include <linux/poll.h>
|
#include <linux/fcntl.h>
|
#include <linux/fcntl.h>
|
#include <linux/init.h>
|
#include <linux/init.h>
|
#include <linux/skbuff.h>
|
#include <linux/skbuff.h>
|
#include <linux/tqueue.h>
|
#include <linux/tqueue.h>
|
#include <linux/interrupt.h>
|
#include <linux/interrupt.h>
|
#include <linux/socket.h>
|
#include <linux/socket.h>
|
#include <linux/ioctl.h>
|
#include <linux/ioctl.h>
|
#include <net/sock.h>
|
#include <net/sock.h>
|
|
|
#include <asm/system.h>
|
#include <asm/system.h>
|
#include <asm/uaccess.h>
|
#include <asm/uaccess.h>
|
#include <asm/unaligned.h>
|
#include <asm/unaligned.h>
|
|
|
#include <net/bluetooth/bluetooth.h>
|
#include <net/bluetooth/bluetooth.h>
|
#include <net/bluetooth/hci_core.h>
|
#include <net/bluetooth/hci_core.h>
|
|
|
#ifndef HCI_SOCK_DEBUG
|
#ifndef HCI_SOCK_DEBUG
|
#undef BT_DBG
|
#undef BT_DBG
|
#define BT_DBG( A... )
|
#define BT_DBG( A... )
|
#endif
|
#endif
|
|
|
/* ----- HCI socket interface ----- */
|
/* ----- HCI socket interface ----- */
|
|
|
/* Security filter */
|
/* Security filter */
|
static struct hci_sec_filter hci_sec_filter = {
|
static struct hci_sec_filter hci_sec_filter = {
|
/* Packet types */
|
/* Packet types */
|
0x10,
|
0x10,
|
/* Events */
|
/* Events */
|
{ 0x1000d9fe, 0x0000300c },
|
{ 0x1000d9fe, 0x0000300c },
|
/* Commands */
|
/* Commands */
|
{
|
{
|
{ 0x0 },
|
{ 0x0 },
|
/* OGF_LINK_CTL */
|
/* OGF_LINK_CTL */
|
{ 0xbe000006, 0x00000001, 0x0000, 0x00 },
|
{ 0xbe000006, 0x00000001, 0x0000, 0x00 },
|
/* OGF_LINK_POLICY */
|
/* OGF_LINK_POLICY */
|
{ 0x00005200, 0x00000000, 0x0000, 0x00 },
|
{ 0x00005200, 0x00000000, 0x0000, 0x00 },
|
/* OGF_HOST_CTL */
|
/* OGF_HOST_CTL */
|
{ 0xaab00200, 0x2b402aaa, 0x0154, 0x00 },
|
{ 0xaab00200, 0x2b402aaa, 0x0154, 0x00 },
|
/* OGF_INFO_PARAM */
|
/* OGF_INFO_PARAM */
|
{ 0x000002be, 0x00000000, 0x0000, 0x00 },
|
{ 0x000002be, 0x00000000, 0x0000, 0x00 },
|
/* OGF_STATUS_PARAM */
|
/* OGF_STATUS_PARAM */
|
{ 0x000000ea, 0x00000000, 0x0000, 0x00 }
|
{ 0x000000ea, 0x00000000, 0x0000, 0x00 }
|
}
|
}
|
};
|
};
|
|
|
static struct bluez_sock_list hci_sk_list = {
|
static struct bluez_sock_list hci_sk_list = {
|
lock: RW_LOCK_UNLOCKED
|
lock: RW_LOCK_UNLOCKED
|
};
|
};
|
|
|
/* Send frame to RAW socket */
|
/* Send frame to RAW socket */
|
void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
|
void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
|
{
|
{
|
struct sock * sk;
|
struct sock * sk;
|
|
|
BT_DBG("hdev %p len %d", hdev, skb->len);
|
BT_DBG("hdev %p len %d", hdev, skb->len);
|
|
|
read_lock(&hci_sk_list.lock);
|
read_lock(&hci_sk_list.lock);
|
for (sk = hci_sk_list.head; sk; sk = sk->next) {
|
for (sk = hci_sk_list.head; sk; sk = sk->next) {
|
struct hci_filter *flt;
|
struct hci_filter *flt;
|
struct sk_buff *nskb;
|
struct sk_buff *nskb;
|
|
|
if (sk->state != BT_BOUND || hci_pi(sk)->hdev != hdev)
|
if (sk->state != BT_BOUND || hci_pi(sk)->hdev != hdev)
|
continue;
|
continue;
|
|
|
/* Don't send frame to the socket it came from */
|
/* Don't send frame to the socket it came from */
|
if (skb->sk == sk)
|
if (skb->sk == sk)
|
continue;
|
continue;
|
|
|
/* Apply filter */
|
/* Apply filter */
|
flt = &hci_pi(sk)->filter;
|
flt = &hci_pi(sk)->filter;
|
|
|
if (!hci_test_bit((skb->pkt_type & HCI_FLT_TYPE_BITS), &flt->type_mask))
|
if (!hci_test_bit((skb->pkt_type & HCI_FLT_TYPE_BITS), &flt->type_mask))
|
continue;
|
continue;
|
|
|
if (skb->pkt_type == HCI_EVENT_PKT) {
|
if (skb->pkt_type == HCI_EVENT_PKT) {
|
register int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
|
register int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
|
|
|
if (!hci_test_bit(evt, &flt->event_mask))
|
if (!hci_test_bit(evt, &flt->event_mask))
|
continue;
|
continue;
|
|
|
if (flt->opcode && ((evt == EVT_CMD_COMPLETE &&
|
if (flt->opcode && ((evt == EVT_CMD_COMPLETE &&
|
flt->opcode != *(__u16 *)(skb->data + 3)) ||
|
flt->opcode != *(__u16 *)(skb->data + 3)) ||
|
(evt == EVT_CMD_STATUS &&
|
(evt == EVT_CMD_STATUS &&
|
flt->opcode != *(__u16 *)(skb->data + 4))))
|
flt->opcode != *(__u16 *)(skb->data + 4))))
|
continue;
|
continue;
|
}
|
}
|
|
|
if (!(nskb = skb_clone(skb, GFP_ATOMIC)))
|
if (!(nskb = skb_clone(skb, GFP_ATOMIC)))
|
continue;
|
continue;
|
|
|
/* Put type byte before the data */
|
/* Put type byte before the data */
|
memcpy(skb_push(nskb, 1), &nskb->pkt_type, 1);
|
memcpy(skb_push(nskb, 1), &nskb->pkt_type, 1);
|
|
|
if (sock_queue_rcv_skb(sk, nskb))
|
if (sock_queue_rcv_skb(sk, nskb))
|
kfree_skb(nskb);
|
kfree_skb(nskb);
|
}
|
}
|
read_unlock(&hci_sk_list.lock);
|
read_unlock(&hci_sk_list.lock);
|
}
|
}
|
|
|
static int hci_sock_release(struct socket *sock)
|
static int hci_sock_release(struct socket *sock)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
struct hci_dev *hdev = hci_pi(sk)->hdev;
|
struct hci_dev *hdev = hci_pi(sk)->hdev;
|
|
|
BT_DBG("sock %p sk %p", sock, sk);
|
BT_DBG("sock %p sk %p", sock, sk);
|
|
|
if (!sk)
|
if (!sk)
|
return 0;
|
return 0;
|
|
|
bluez_sock_unlink(&hci_sk_list, sk);
|
bluez_sock_unlink(&hci_sk_list, sk);
|
|
|
if (hdev) {
|
if (hdev) {
|
atomic_dec(&hdev->promisc);
|
atomic_dec(&hdev->promisc);
|
hci_dev_put(hdev);
|
hci_dev_put(hdev);
|
}
|
}
|
|
|
sock_orphan(sk);
|
sock_orphan(sk);
|
|
|
skb_queue_purge(&sk->receive_queue);
|
skb_queue_purge(&sk->receive_queue);
|
skb_queue_purge(&sk->write_queue);
|
skb_queue_purge(&sk->write_queue);
|
|
|
sock_put(sk);
|
sock_put(sk);
|
|
|
MOD_DEC_USE_COUNT;
|
MOD_DEC_USE_COUNT;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Ioctls that require bound socket */
|
/* Ioctls that require bound socket */
|
static inline int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)
|
static inline int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)
|
{
|
{
|
struct hci_dev *hdev = hci_pi(sk)->hdev;
|
struct hci_dev *hdev = hci_pi(sk)->hdev;
|
|
|
if (!hdev)
|
if (!hdev)
|
return -EBADFD;
|
return -EBADFD;
|
|
|
switch (cmd) {
|
switch (cmd) {
|
case HCISETRAW:
|
case HCISETRAW:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EACCES;
|
return -EACCES;
|
|
|
if (arg)
|
if (arg)
|
set_bit(HCI_RAW, &hdev->flags);
|
set_bit(HCI_RAW, &hdev->flags);
|
else
|
else
|
clear_bit(HCI_RAW, &hdev->flags);
|
clear_bit(HCI_RAW, &hdev->flags);
|
|
|
return 0;
|
return 0;
|
|
|
case HCIGETCONNINFO:
|
case HCIGETCONNINFO:
|
return hci_get_conn_info(hdev, arg);
|
return hci_get_conn_info(hdev, arg);
|
|
|
default:
|
default:
|
if (hdev->ioctl)
|
if (hdev->ioctl)
|
return hdev->ioctl(hdev, cmd, arg);
|
return hdev->ioctl(hdev, cmd, arg);
|
return -EINVAL;
|
return -EINVAL;
|
}
|
}
|
}
|
}
|
|
|
static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
|
static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
int err;
|
int err;
|
|
|
BT_DBG("cmd %x arg %lx", cmd, arg);
|
BT_DBG("cmd %x arg %lx", cmd, arg);
|
|
|
switch (cmd) {
|
switch (cmd) {
|
case HCIGETDEVLIST:
|
case HCIGETDEVLIST:
|
return hci_get_dev_list(arg);
|
return hci_get_dev_list(arg);
|
|
|
case HCIGETDEVINFO:
|
case HCIGETDEVINFO:
|
return hci_get_dev_info(arg);
|
return hci_get_dev_info(arg);
|
|
|
case HCIGETCONNLIST:
|
case HCIGETCONNLIST:
|
return hci_get_conn_list(arg);
|
return hci_get_conn_list(arg);
|
|
|
case HCIDEVUP:
|
case HCIDEVUP:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EACCES;
|
return -EACCES;
|
return hci_dev_open(arg);
|
return hci_dev_open(arg);
|
|
|
case HCIDEVDOWN:
|
case HCIDEVDOWN:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EACCES;
|
return -EACCES;
|
return hci_dev_close(arg);
|
return hci_dev_close(arg);
|
|
|
case HCIDEVRESET:
|
case HCIDEVRESET:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EACCES;
|
return -EACCES;
|
return hci_dev_reset(arg);
|
return hci_dev_reset(arg);
|
|
|
case HCIDEVRESTAT:
|
case HCIDEVRESTAT:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EACCES;
|
return -EACCES;
|
return hci_dev_reset_stat(arg);
|
return hci_dev_reset_stat(arg);
|
|
|
case HCISETSCAN:
|
case HCISETSCAN:
|
case HCISETAUTH:
|
case HCISETAUTH:
|
case HCISETENCRYPT:
|
case HCISETENCRYPT:
|
case HCISETPTYPE:
|
case HCISETPTYPE:
|
case HCISETLINKPOL:
|
case HCISETLINKPOL:
|
case HCISETLINKMODE:
|
case HCISETLINKMODE:
|
case HCISETACLMTU:
|
case HCISETACLMTU:
|
case HCISETSCOMTU:
|
case HCISETSCOMTU:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EACCES;
|
return -EACCES;
|
return hci_dev_cmd(cmd, arg);
|
return hci_dev_cmd(cmd, arg);
|
|
|
case HCIINQUIRY:
|
case HCIINQUIRY:
|
return hci_inquiry(arg);
|
return hci_inquiry(arg);
|
|
|
default:
|
default:
|
lock_sock(sk);
|
lock_sock(sk);
|
err = hci_sock_bound_ioctl(sk, cmd, arg);
|
err = hci_sock_bound_ioctl(sk, cmd, arg);
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
};
|
};
|
}
|
}
|
|
|
static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
|
static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
|
{
|
{
|
struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
|
struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
struct hci_dev *hdev = NULL;
|
struct hci_dev *hdev = NULL;
|
int err = 0;
|
int err = 0;
|
|
|
BT_DBG("sock %p sk %p", sock, sk);
|
BT_DBG("sock %p sk %p", sock, sk);
|
|
|
if (!haddr || haddr->hci_family != AF_BLUETOOTH)
|
if (!haddr || haddr->hci_family != AF_BLUETOOTH)
|
return -EINVAL;
|
return -EINVAL;
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
if (hci_pi(sk)->hdev) {
|
if (hci_pi(sk)->hdev) {
|
err = -EALREADY;
|
err = -EALREADY;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
if (haddr->hci_dev != HCI_DEV_NONE) {
|
if (haddr->hci_dev != HCI_DEV_NONE) {
|
if (!(hdev = hci_dev_get(haddr->hci_dev))) {
|
if (!(hdev = hci_dev_get(haddr->hci_dev))) {
|
err = -ENODEV;
|
err = -ENODEV;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
atomic_inc(&hdev->promisc);
|
atomic_inc(&hdev->promisc);
|
}
|
}
|
|
|
hci_pi(sk)->hdev = hdev;
|
hci_pi(sk)->hdev = hdev;
|
sk->state = BT_BOUND;
|
sk->state = BT_BOUND;
|
|
|
done:
|
done:
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, int *addr_len, int peer)
|
static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, int *addr_len, int peer)
|
{
|
{
|
struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
|
struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
|
|
BT_DBG("sock %p sk %p", sock, sk);
|
BT_DBG("sock %p sk %p", sock, sk);
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
*addr_len = sizeof(*haddr);
|
*addr_len = sizeof(*haddr);
|
haddr->hci_family = AF_BLUETOOTH;
|
haddr->hci_family = AF_BLUETOOTH;
|
haddr->hci_dev = hci_pi(sk)->hdev->id;
|
haddr->hci_dev = hci_pi(sk)->hdev->id;
|
|
|
release_sock(sk);
|
release_sock(sk);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
|
static inline void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
|
{
|
{
|
__u32 mask = hci_pi(sk)->cmsg_mask;
|
__u32 mask = hci_pi(sk)->cmsg_mask;
|
|
|
if (mask & HCI_CMSG_DIR)
|
if (mask & HCI_CMSG_DIR)
|
put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(int), &bluez_cb(skb)->incomming);
|
put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(int), &bluez_cb(skb)->incomming);
|
|
|
if (mask & HCI_CMSG_TSTAMP)
|
if (mask & HCI_CMSG_TSTAMP)
|
put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, sizeof(skb->stamp), &skb->stamp);
|
put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, sizeof(skb->stamp), &skb->stamp);
|
}
|
}
|
|
|
static int hci_sock_recvmsg(struct socket *sock, struct msghdr *msg, int len, int flags, struct scm_cookie *scm)
|
static int hci_sock_recvmsg(struct socket *sock, struct msghdr *msg, int len, int flags, struct scm_cookie *scm)
|
{
|
{
|
int noblock = flags & MSG_DONTWAIT;
|
int noblock = flags & MSG_DONTWAIT;
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
struct sk_buff *skb;
|
struct sk_buff *skb;
|
int copied, err;
|
int copied, err;
|
|
|
BT_DBG("sock %p, sk %p", sock, sk);
|
BT_DBG("sock %p, sk %p", sock, sk);
|
|
|
if (flags & (MSG_OOB))
|
if (flags & (MSG_OOB))
|
return -EOPNOTSUPP;
|
return -EOPNOTSUPP;
|
|
|
if (sk->state == BT_CLOSED)
|
if (sk->state == BT_CLOSED)
|
return 0;
|
return 0;
|
|
|
if (!(skb = skb_recv_datagram(sk, flags, noblock, &err)))
|
if (!(skb = skb_recv_datagram(sk, flags, noblock, &err)))
|
return err;
|
return err;
|
|
|
msg->msg_namelen = 0;
|
msg->msg_namelen = 0;
|
|
|
copied = skb->len;
|
copied = skb->len;
|
if (len < copied) {
|
if (len < copied) {
|
msg->msg_flags |= MSG_TRUNC;
|
msg->msg_flags |= MSG_TRUNC;
|
copied = len;
|
copied = len;
|
}
|
}
|
|
|
skb->h.raw = skb->data;
|
skb->h.raw = skb->data;
|
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
|
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
|
|
|
hci_sock_cmsg(sk, msg, skb);
|
hci_sock_cmsg(sk, msg, skb);
|
|
|
skb_free_datagram(sk, skb);
|
skb_free_datagram(sk, skb);
|
|
|
return err ? : copied;
|
return err ? : copied;
|
}
|
}
|
|
|
static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg, int len,
|
static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg, int len,
|
struct scm_cookie *scm)
|
struct scm_cookie *scm)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
struct hci_dev *hdev;
|
struct hci_dev *hdev;
|
struct sk_buff *skb;
|
struct sk_buff *skb;
|
int err;
|
int err;
|
|
|
BT_DBG("sock %p sk %p", sock, sk);
|
BT_DBG("sock %p sk %p", sock, sk);
|
|
|
if (msg->msg_flags & MSG_OOB)
|
if (msg->msg_flags & MSG_OOB)
|
return -EOPNOTSUPP;
|
return -EOPNOTSUPP;
|
|
|
if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
|
if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
|
return -EINVAL;
|
return -EINVAL;
|
|
|
if (len < 4)
|
if (len < 4)
|
return -EINVAL;
|
return -EINVAL;
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
if (!(hdev = hci_pi(sk)->hdev)) {
|
if (!(hdev = hci_pi(sk)->hdev)) {
|
err = -EBADFD;
|
err = -EBADFD;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
if (!(skb = bluez_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err)))
|
if (!(skb = bluez_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err)))
|
goto done;
|
goto done;
|
|
|
if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
|
if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
|
err = -EFAULT;
|
err = -EFAULT;
|
goto drop;
|
goto drop;
|
}
|
}
|
|
|
skb->pkt_type = *((unsigned char *) skb->data);
|
skb->pkt_type = *((unsigned char *) skb->data);
|
skb_pull(skb, 1);
|
skb_pull(skb, 1);
|
skb->dev = (void *) hdev;
|
skb->dev = (void *) hdev;
|
|
|
if (skb->pkt_type == HCI_COMMAND_PKT) {
|
if (skb->pkt_type == HCI_COMMAND_PKT) {
|
u16 opcode = __le16_to_cpu(get_unaligned((u16 *)skb->data));
|
u16 opcode = __le16_to_cpu(get_unaligned((u16 *)skb->data));
|
u16 ogf = cmd_opcode_ogf(opcode);
|
u16 ogf = cmd_opcode_ogf(opcode);
|
u16 ocf = cmd_opcode_ocf(opcode);
|
u16 ocf = cmd_opcode_ocf(opcode);
|
|
|
if (((ogf > HCI_SFLT_MAX_OGF) ||
|
if (((ogf > HCI_SFLT_MAX_OGF) ||
|
!hci_test_bit(ocf & HCI_FLT_OCF_BITS, &hci_sec_filter.ocf_mask[ogf])) &&
|
!hci_test_bit(ocf & HCI_FLT_OCF_BITS, &hci_sec_filter.ocf_mask[ogf])) &&
|
!capable(CAP_NET_RAW)) {
|
!capable(CAP_NET_RAW)) {
|
err = -EPERM;
|
err = -EPERM;
|
goto drop;
|
goto drop;
|
}
|
}
|
|
|
if (test_bit(HCI_RAW, &hdev->flags) || (ogf == OGF_VENDOR_CMD)) {
|
if (test_bit(HCI_RAW, &hdev->flags) || (ogf == OGF_VENDOR_CMD)) {
|
skb_queue_tail(&hdev->raw_q, skb);
|
skb_queue_tail(&hdev->raw_q, skb);
|
hci_sched_tx(hdev);
|
hci_sched_tx(hdev);
|
} else {
|
} else {
|
skb_queue_tail(&hdev->cmd_q, skb);
|
skb_queue_tail(&hdev->cmd_q, skb);
|
hci_sched_cmd(hdev);
|
hci_sched_cmd(hdev);
|
}
|
}
|
} else {
|
} else {
|
if (!capable(CAP_NET_RAW)) {
|
if (!capable(CAP_NET_RAW)) {
|
err = -EPERM;
|
err = -EPERM;
|
goto drop;
|
goto drop;
|
}
|
}
|
|
|
skb_queue_tail(&hdev->raw_q, skb);
|
skb_queue_tail(&hdev->raw_q, skb);
|
hci_sched_tx(hdev);
|
hci_sched_tx(hdev);
|
}
|
}
|
|
|
err = len;
|
err = len;
|
|
|
done:
|
done:
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
|
|
drop:
|
drop:
|
kfree_skb(skb);
|
kfree_skb(skb);
|
goto done;
|
goto done;
|
}
|
}
|
|
|
int hci_sock_setsockopt(struct socket *sock, int level, int optname, char *optval, int len)
|
int hci_sock_setsockopt(struct socket *sock, int level, int optname, char *optval, int len)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
struct hci_filter flt = { opcode: 0 };
|
struct hci_filter flt = { opcode: 0 };
|
int err = 0, opt = 0;
|
int err = 0, opt = 0;
|
|
|
BT_DBG("sk %p, opt %d", sk, optname);
|
BT_DBG("sk %p, opt %d", sk, optname);
|
|
|
lock_sock(sk);
|
lock_sock(sk);
|
|
|
switch (optname) {
|
switch (optname) {
|
case HCI_DATA_DIR:
|
case HCI_DATA_DIR:
|
if (get_user(opt, (int *)optval)) {
|
if (get_user(opt, (int *)optval)) {
|
err = -EFAULT;
|
err = -EFAULT;
|
break;
|
break;
|
}
|
}
|
|
|
if (opt)
|
if (opt)
|
hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR;
|
hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR;
|
else
|
else
|
hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR;
|
hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR;
|
break;
|
break;
|
|
|
case HCI_TIME_STAMP:
|
case HCI_TIME_STAMP:
|
if (get_user(opt, (int *)optval)) {
|
if (get_user(opt, (int *)optval)) {
|
err = -EFAULT;
|
err = -EFAULT;
|
break;
|
break;
|
}
|
}
|
|
|
if (opt)
|
if (opt)
|
hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP;
|
hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP;
|
else
|
else
|
hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP;
|
hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP;
|
break;
|
break;
|
|
|
case HCI_FILTER:
|
case HCI_FILTER:
|
len = MIN(len, sizeof(struct hci_filter));
|
len = MIN(len, sizeof(struct hci_filter));
|
if (copy_from_user(&flt, optval, len)) {
|
if (copy_from_user(&flt, optval, len)) {
|
err = -EFAULT;
|
err = -EFAULT;
|
break;
|
break;
|
}
|
}
|
|
|
if (!capable(CAP_NET_RAW)) {
|
if (!capable(CAP_NET_RAW)) {
|
flt.type_mask &= hci_sec_filter.type_mask;
|
flt.type_mask &= hci_sec_filter.type_mask;
|
flt.event_mask[0] &= hci_sec_filter.event_mask[0];
|
flt.event_mask[0] &= hci_sec_filter.event_mask[0];
|
flt.event_mask[1] &= hci_sec_filter.event_mask[1];
|
flt.event_mask[1] &= hci_sec_filter.event_mask[1];
|
}
|
}
|
|
|
memcpy(&hci_pi(sk)->filter, &flt, len);
|
memcpy(&hci_pi(sk)->filter, &flt, len);
|
break;
|
break;
|
|
|
default:
|
default:
|
err = -ENOPROTOOPT;
|
err = -ENOPROTOOPT;
|
break;
|
break;
|
};
|
};
|
|
|
release_sock(sk);
|
release_sock(sk);
|
return err;
|
return err;
|
}
|
}
|
|
|
int hci_sock_getsockopt(struct socket *sock, int level, int optname, char *optval, int *optlen)
|
int hci_sock_getsockopt(struct socket *sock, int level, int optname, char *optval, int *optlen)
|
{
|
{
|
struct sock *sk = sock->sk;
|
struct sock *sk = sock->sk;
|
int len, opt;
|
int len, opt;
|
|
|
if (get_user(len, optlen))
|
if (get_user(len, optlen))
|
return -EFAULT;
|
return -EFAULT;
|
|
|
switch (optname) {
|
switch (optname) {
|
case HCI_DATA_DIR:
|
case HCI_DATA_DIR:
|
if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR)
|
if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR)
|
opt = 1;
|
opt = 1;
|
else
|
else
|
opt = 0;
|
opt = 0;
|
|
|
if (put_user(opt, optval))
|
if (put_user(opt, optval))
|
return -EFAULT;
|
return -EFAULT;
|
break;
|
break;
|
|
|
case HCI_TIME_STAMP:
|
case HCI_TIME_STAMP:
|
if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP)
|
if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP)
|
opt = 1;
|
opt = 1;
|
else
|
else
|
opt = 0;
|
opt = 0;
|
|
|
if (put_user(opt, optval))
|
if (put_user(opt, optval))
|
return -EFAULT;
|
return -EFAULT;
|
break;
|
break;
|
|
|
case HCI_FILTER:
|
case HCI_FILTER:
|
len = MIN(len, sizeof(struct hci_filter));
|
len = MIN(len, sizeof(struct hci_filter));
|
if (copy_to_user(optval, &hci_pi(sk)->filter, len))
|
if (copy_to_user(optval, &hci_pi(sk)->filter, len))
|
return -EFAULT;
|
return -EFAULT;
|
break;
|
break;
|
|
|
default:
|
default:
|
return -ENOPROTOOPT;
|
return -ENOPROTOOPT;
|
break;
|
break;
|
};
|
};
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
struct proto_ops hci_sock_ops = {
|
struct proto_ops hci_sock_ops = {
|
family: PF_BLUETOOTH,
|
family: PF_BLUETOOTH,
|
release: hci_sock_release,
|
release: hci_sock_release,
|
bind: hci_sock_bind,
|
bind: hci_sock_bind,
|
getname: hci_sock_getname,
|
getname: hci_sock_getname,
|
sendmsg: hci_sock_sendmsg,
|
sendmsg: hci_sock_sendmsg,
|
recvmsg: hci_sock_recvmsg,
|
recvmsg: hci_sock_recvmsg,
|
ioctl: hci_sock_ioctl,
|
ioctl: hci_sock_ioctl,
|
poll: datagram_poll,
|
poll: datagram_poll,
|
listen: sock_no_listen,
|
listen: sock_no_listen,
|
shutdown: sock_no_shutdown,
|
shutdown: sock_no_shutdown,
|
setsockopt: hci_sock_setsockopt,
|
setsockopt: hci_sock_setsockopt,
|
getsockopt: hci_sock_getsockopt,
|
getsockopt: hci_sock_getsockopt,
|
connect: sock_no_connect,
|
connect: sock_no_connect,
|
socketpair: sock_no_socketpair,
|
socketpair: sock_no_socketpair,
|
accept: sock_no_accept,
|
accept: sock_no_accept,
|
mmap: sock_no_mmap
|
mmap: sock_no_mmap
|
};
|
};
|
|
|
static int hci_sock_create(struct socket *sock, int protocol)
|
static int hci_sock_create(struct socket *sock, int protocol)
|
{
|
{
|
struct sock *sk;
|
struct sock *sk;
|
|
|
BT_DBG("sock %p", sock);
|
BT_DBG("sock %p", sock);
|
|
|
if (sock->type != SOCK_RAW)
|
if (sock->type != SOCK_RAW)
|
return -ESOCKTNOSUPPORT;
|
return -ESOCKTNOSUPPORT;
|
|
|
sock->ops = &hci_sock_ops;
|
sock->ops = &hci_sock_ops;
|
|
|
if (!(sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, 1)))
|
if (!(sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, 1)))
|
return -ENOMEM;
|
return -ENOMEM;
|
|
|
sock->state = SS_UNCONNECTED;
|
sock->state = SS_UNCONNECTED;
|
sock_init_data(sock, sk);
|
sock_init_data(sock, sk);
|
|
|
memset(&sk->protinfo, 0, sizeof(struct hci_pinfo));
|
memset(&sk->protinfo, 0, sizeof(struct hci_pinfo));
|
sk->destruct = NULL;
|
sk->destruct = NULL;
|
sk->protocol = protocol;
|
sk->protocol = protocol;
|
sk->state = BT_OPEN;
|
sk->state = BT_OPEN;
|
|
|
bluez_sock_link(&hci_sk_list, sk);
|
bluez_sock_link(&hci_sk_list, sk);
|
|
|
MOD_INC_USE_COUNT;
|
MOD_INC_USE_COUNT;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static int hci_sock_dev_event(struct notifier_block *this, unsigned long event, void *ptr)
|
static int hci_sock_dev_event(struct notifier_block *this, unsigned long event, void *ptr)
|
{
|
{
|
struct hci_dev *hdev = (struct hci_dev *) ptr;
|
struct hci_dev *hdev = (struct hci_dev *) ptr;
|
evt_si_device sd;
|
evt_si_device sd;
|
|
|
BT_DBG("hdev %s event %ld", hdev->name, event);
|
BT_DBG("hdev %s event %ld", hdev->name, event);
|
|
|
/* Send event to sockets */
|
/* Send event to sockets */
|
sd.event = event;
|
sd.event = event;
|
sd.dev_id = hdev->id;
|
sd.dev_id = hdev->id;
|
hci_si_event(NULL, EVT_SI_DEVICE, EVT_SI_DEVICE_SIZE, &sd);
|
hci_si_event(NULL, EVT_SI_DEVICE, EVT_SI_DEVICE_SIZE, &sd);
|
|
|
if (event == HCI_DEV_UNREG) {
|
if (event == HCI_DEV_UNREG) {
|
struct sock *sk;
|
struct sock *sk;
|
|
|
/* Detach sockets from device */
|
/* Detach sockets from device */
|
read_lock(&hci_sk_list.lock);
|
read_lock(&hci_sk_list.lock);
|
for (sk = hci_sk_list.head; sk; sk = sk->next) {
|
for (sk = hci_sk_list.head; sk; sk = sk->next) {
|
bh_lock_sock(sk);
|
bh_lock_sock(sk);
|
if (hci_pi(sk)->hdev == hdev) {
|
if (hci_pi(sk)->hdev == hdev) {
|
hci_pi(sk)->hdev = NULL;
|
hci_pi(sk)->hdev = NULL;
|
sk->err = EPIPE;
|
sk->err = EPIPE;
|
sk->state = BT_OPEN;
|
sk->state = BT_OPEN;
|
sk->state_change(sk);
|
sk->state_change(sk);
|
|
|
hci_dev_put(hdev);
|
hci_dev_put(hdev);
|
}
|
}
|
bh_unlock_sock(sk);
|
bh_unlock_sock(sk);
|
}
|
}
|
read_unlock(&hci_sk_list.lock);
|
read_unlock(&hci_sk_list.lock);
|
}
|
}
|
|
|
return NOTIFY_DONE;
|
return NOTIFY_DONE;
|
}
|
}
|
|
|
struct net_proto_family hci_sock_family_ops = {
|
struct net_proto_family hci_sock_family_ops = {
|
family: PF_BLUETOOTH,
|
family: PF_BLUETOOTH,
|
create: hci_sock_create
|
create: hci_sock_create
|
};
|
};
|
|
|
struct notifier_block hci_sock_nblock = {
|
struct notifier_block hci_sock_nblock = {
|
notifier_call: hci_sock_dev_event
|
notifier_call: hci_sock_dev_event
|
};
|
};
|
|
|
int hci_sock_init(void)
|
int hci_sock_init(void)
|
{
|
{
|
if (bluez_sock_register(BTPROTO_HCI, &hci_sock_family_ops)) {
|
if (bluez_sock_register(BTPROTO_HCI, &hci_sock_family_ops)) {
|
BT_ERR("Can't register HCI socket");
|
BT_ERR("Can't register HCI socket");
|
return -EPROTO;
|
return -EPROTO;
|
}
|
}
|
|
|
hci_register_notifier(&hci_sock_nblock);
|
hci_register_notifier(&hci_sock_nblock);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int hci_sock_cleanup(void)
|
int hci_sock_cleanup(void)
|
{
|
{
|
if (bluez_sock_unregister(BTPROTO_HCI))
|
if (bluez_sock_unregister(BTPROTO_HCI))
|
BT_ERR("Can't unregister HCI socket");
|
BT_ERR("Can't unregister HCI socket");
|
|
|
hci_unregister_notifier(&hci_sock_nblock);
|
hci_unregister_notifier(&hci_sock_nblock);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
