diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/hci_sock.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 4dce6dfdb0f2..2d8725006838 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -394,6 +394,59 @@ static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event) return skb; } +static struct sk_buff *create_monitor_ctrl_open(struct sock *sk) +{ + struct hci_mon_hdr *hdr; + struct sk_buff *skb; + u16 format = 0x0002; + u8 ver[3]; + u32 flags; + + skb = bt_skb_alloc(14 + TASK_COMM_LEN , GFP_ATOMIC); + if (!skb) + return NULL; + + mgmt_fill_version_info(ver); + flags = hci_sock_test_flag(sk, HCI_SOCK_TRUSTED) ? 0x1 : 0x0; + + put_unaligned_le32(hci_pi(sk)->cookie, skb_put(skb, 4)); + put_unaligned_le16(format, skb_put(skb, 2)); + memcpy(skb_put(skb, sizeof(ver)), ver, sizeof(ver)); + put_unaligned_le32(flags, skb_put(skb, 4)); + *skb_put(skb, 1) = TASK_COMM_LEN; + memcpy(skb_put(skb, TASK_COMM_LEN), hci_pi(sk)->comm, TASK_COMM_LEN); + + __net_timestamp(skb); + + hdr = (void *)skb_push(skb, HCI_MON_HDR_SIZE); + hdr->opcode = cpu_to_le16(HCI_MON_CTRL_OPEN); + hdr->index = cpu_to_le16(HCI_DEV_NONE); + hdr->len = cpu_to_le16(skb->len - HCI_MON_HDR_SIZE); + + return skb; +} + +static struct sk_buff *create_monitor_ctrl_close(struct sock *sk) +{ + struct hci_mon_hdr *hdr; + struct sk_buff *skb; + + skb = bt_skb_alloc(4, GFP_ATOMIC); + if (!skb) + return NULL; + + put_unaligned_le32(hci_pi(sk)->cookie, skb_put(skb, 4)); + + __net_timestamp(skb); + + hdr = (void *)skb_push(skb, HCI_MON_HDR_SIZE); + hdr->opcode = cpu_to_le16(HCI_MON_CTRL_CLOSE); + hdr->index = cpu_to_le16(HCI_DEV_NONE); + hdr->len = cpu_to_le16(skb->len - HCI_MON_HDR_SIZE); + + return skb; +} + static void __printf(2, 3) send_monitor_note(struct sock *sk, const char *fmt, ...) { @@ -468,6 +521,29 @@ static void send_monitor_replay(struct sock *sk) read_unlock(&hci_dev_list_lock); } +static void send_monitor_control_replay(struct sock *mon_sk) +{ + struct sock *sk; + + read_lock(&hci_sk_list.lock); + + sk_for_each(sk, &hci_sk_list.head) { + struct sk_buff *skb; + + if (hci_pi(sk)->channel != HCI_CHANNEL_CONTROL) + continue; + + skb = create_monitor_ctrl_open(sk); + if (!skb) + continue; + + if (sock_queue_rcv_skb(mon_sk, skb)) + kfree_skb(skb); + } + + read_unlock(&hci_sk_list.lock); +} + /* Generate internal stack event */ static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data) { @@ -595,6 +671,7 @@ static int hci_sock_release(struct socket *sock) { struct sock *sk = sock->sk; struct hci_dev *hdev; + struct sk_buff *skb; int id; BT_DBG("sock %p sk %p", sock, sk); @@ -611,6 +688,14 @@ static int hci_sock_release(struct socket *sock) case HCI_CHANNEL_CONTROL: id = hci_pi(sk)->cookie; + /* Send event to monitor */ + skb = create_monitor_ctrl_close(sk); + if (skb) { + hci_send_to_channel(HCI_CHANNEL_MONITOR, skb, + HCI_SOCK_TRUSTED, NULL); + kfree_skb(skb); + } + hci_pi(sk)->cookie = 0xffffffff; ida_simple_remove(&sock_cookie_ida, id); break; @@ -931,6 +1016,7 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, send_monitor_note(sk, "Bluetooth subsystem version %s", BT_SUBSYS_VERSION); send_monitor_replay(sk); + send_monitor_control_replay(sk); atomic_inc(&monitor_promisc); break; @@ -977,6 +1063,7 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, * are changes to settings, class of device, name etc. */ if (haddr.hci_channel == HCI_CHANNEL_CONTROL) { + struct sk_buff *skb; int id; id = ida_simple_get(&sock_cookie_ida, 1, 0, GFP_KERNEL); @@ -986,6 +1073,14 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, hci_pi(sk)->cookie = id; get_task_comm(hci_pi(sk)->comm, current); + /* Send event to monitor */ + skb = create_monitor_ctrl_open(sk); + if (skb) { + hci_send_to_channel(HCI_CHANNEL_MONITOR, skb, + HCI_SOCK_TRUSTED, NULL); + kfree_skb(skb); + } + hci_sock_set_flag(sk, HCI_MGMT_INDEX_EVENTS); hci_sock_set_flag(sk, HCI_MGMT_UNCONF_INDEX_EVENTS); hci_sock_set_flag(sk, HCI_MGMT_GENERIC_EVENTS); |