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authorMarcel Holtmann <marcel@holtmann.org>2016-08-30 05:00:38 +0200
committerMarcel Holtmann <marcel@holtmann.org>2016-09-19 20:19:34 +0200
commitd0bef1d26fb6fdad818f3d15a178d51e2a8478ae (patch)
tree2653a730058b6d4fd8e19f0f5fa21c55918f0e47 /net/bluetooth/hci_sock.c
parent5a6d2cf5f18b5afbae0b1b450070bbba50f1e3e0 (diff)
downloadlinux-d0bef1d26fb6fdad818f3d15a178d51e2a8478ae.tar.bz2
Bluetooth: Add extra channel checks for control open/close messages
The control open and close monitoring events require special channel checks to ensure messages are only send when the right events happen. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth/hci_sock.c')
-rw-r--r--net/bluetooth/hci_sock.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index ca13fac1c132..b22efe272f7e 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -479,7 +479,7 @@ static struct sk_buff *create_monitor_ctrl_open(struct sock *sk)
{
struct hci_mon_hdr *hdr;
struct sk_buff *skb;
- u16 format = 0x0002;
+ u16 format;
u8 ver[3];
u32 flags;
@@ -487,11 +487,20 @@ static struct sk_buff *create_monitor_ctrl_open(struct sock *sk)
if (!hci_pi(sk)->cookie)
return NULL;
+ switch (hci_pi(sk)->channel) {
+ case HCI_CHANNEL_CONTROL:
+ format = 0x0002;
+ mgmt_fill_version_info(ver);
+ break;
+ default:
+ /* No message for unsupported format */
+ return NULL;
+ }
+
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));
@@ -523,6 +532,14 @@ static struct sk_buff *create_monitor_ctrl_close(struct sock *sk)
if (!hci_pi(sk)->cookie)
return NULL;
+ switch (hci_pi(sk)->channel) {
+ case HCI_CHANNEL_CONTROL:
+ break;
+ default:
+ /* No message for unsupported format */
+ return NULL;
+ }
+
skb = bt_skb_alloc(4, GFP_ATOMIC);
if (!skb)
return NULL;
@@ -652,9 +669,6 @@ static void send_monitor_control_replay(struct sock *mon_sk)
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;