diff options
| -rw-r--r-- | include/net/bluetooth/hci.h | 1 | ||||
| -rw-r--r-- | net/bluetooth/hci_sock.c | 86 |
2 files changed, 82 insertions, 5 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 128157db0680..30c88b585c1b 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -1571,6 +1571,7 @@ struct sockaddr_hci { #define HCI_DEV_NONE 0xffff #define HCI_CHANNEL_RAW 0 +#define HCI_CHANNEL_USER 1 #define HCI_CHANNEL_MONITOR 2 #define HCI_CHANNEL_CONTROL 3 diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 59e68f199178..c09e97638065 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -126,11 +126,20 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb) if (skb->sk == sk) continue; - if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) - continue; - - if (is_filtered_packet(sk, skb)) + if (hci_pi(sk)->channel == HCI_CHANNEL_RAW) { + if (is_filtered_packet(sk, skb)) + continue; + } else if (hci_pi(sk)->channel == HCI_CHANNEL_USER) { + if (!bt_cb(skb)->incoming) + continue; + if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT && + bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT && + bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) + continue; + } else { + /* Don't send frame to other channel types */ continue; + } if (!skb_copy) { /* Create a private copy with headroom */ @@ -444,6 +453,12 @@ static int hci_sock_release(struct socket *sock) bt_sock_unlink(&hci_sk_list, sk); if (hdev) { + if (hci_pi(sk)->channel == HCI_CHANNEL_USER) { + mgmt_index_added(hdev); + clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags); + hci_dev_close(hdev->id); + } + atomic_dec(&hdev->promisc); hci_dev_put(hdev); } @@ -661,6 +676,56 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, hci_pi(sk)->hdev = hdev; break; + case HCI_CHANNEL_USER: + if (hci_pi(sk)->hdev) { + err = -EALREADY; + goto done; + } + + if (haddr.hci_dev == HCI_DEV_NONE) { + err = -EINVAL; + goto done; + } + + if (!capable(CAP_NET_RAW)) { + err = -EPERM; + goto done; + } + + hdev = hci_dev_get(haddr.hci_dev); + if (!hdev) { + err = -ENODEV; + goto done; + } + + if (test_bit(HCI_UP, &hdev->flags) || + test_bit(HCI_INIT, &hdev->flags) || + test_bit(HCI_SETUP, &hdev->dev_flags)) { + err = -EBUSY; + hci_dev_put(hdev); + goto done; + } + + if (test_and_set_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + err = -EUSERS; + hci_dev_put(hdev); + goto done; + } + + mgmt_index_removed(hdev); + + err = hci_dev_open(hdev->id); + if (err) { + clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags); + hci_dev_put(hdev); + goto done; + } + + atomic_inc(&hdev->promisc); + + hci_pi(sk)->hdev = hdev; + break; + case HCI_CHANNEL_CONTROL: if (haddr.hci_dev != HCI_DEV_NONE) { err = -EINVAL; @@ -807,6 +872,7 @@ static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock, case HCI_CHANNEL_RAW: hci_sock_cmsg(sk, msg, skb); break; + case HCI_CHANNEL_USER: case HCI_CHANNEL_CONTROL: case HCI_CHANNEL_MONITOR: sock_recv_timestamp(msg, sk, skb); @@ -841,6 +907,7 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, switch (hci_pi(sk)->channel) { case HCI_CHANNEL_RAW: + case HCI_CHANNEL_USER: break; case HCI_CHANNEL_CONTROL: err = mgmt_control(sk, msg, len); @@ -877,7 +944,8 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, skb_pull(skb, 1); skb->dev = (void *) hdev; - if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) { + if (hci_pi(sk)->channel == HCI_CHANNEL_RAW && + bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) { u16 opcode = get_unaligned_le16(skb->data); u16 ogf = hci_opcode_ogf(opcode); u16 ocf = hci_opcode_ocf(opcode); @@ -908,6 +976,14 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, goto drop; } + if (hci_pi(sk)->channel == HCI_CHANNEL_USER && + bt_cb(skb)->pkt_type != HCI_COMMAND_PKT && + bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT && + bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) { + err = -EINVAL; + goto drop; + } + skb_queue_tail(&hdev->raw_q, skb); queue_work(hdev->workqueue, &hdev->tx_work); } |