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authorMarcel Holtmann <marcel@holtmann.org>2009-01-15 21:57:02 +0100
committerMarcel Holtmann <marcel@holtmann.org>2009-02-27 06:14:24 +0100
commit71aeeaa1fd88fe7446391e0553336f0e0c2cfe6a (patch)
tree54ebd367cc0d8deb1de919f9c3c69782120ef97f /net/bluetooth/sco.c
parentf66dc81f44d918ee1aa1a9d821bb2f25c7592bc0 (diff)
Bluetooth: Reject incoming SCO connections without listeners
All SCO and eSCO connection are auto-accepted no matter if there is a corresponding listening socket for them. This patch changes this and connection requests for SCO and eSCO without any socket are rejected. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/sco.c')
-rw-r--r--net/bluetooth/sco.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index dea40d4bb6f..71df982c09c 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -857,10 +857,30 @@ done:
/* ----- SCO interface with lower layer (HCI) ----- */
static int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
{
+ register struct sock *sk;
+ struct hlist_node *node;
+ int lm = 0;
+
+ if (type != SCO_LINK && type != ESCO_LINK)
+ return 0;
+
BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
- /* Always accept connection */
- return HCI_LM_ACCEPT;
+ /* Find listening sockets */
+ read_lock(&sco_sk_list.lock);
+ sk_for_each(sk, node, &sco_sk_list.head) {
+ if (sk->sk_state != BT_LISTEN)
+ continue;
+
+ if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) ||
+ !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+ lm |= HCI_LM_ACCEPT;
+ break;
+ }
+ }
+ read_unlock(&sco_sk_list.lock);
+
+ return lm;
}
static int sco_connect_cfm(struct hci_conn *hcon, __u8 status)