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[Bluetooth] Disconnect when encryption gets disabled

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The Bluetooth specification allows to enable or disable the encryption
of an ACL link at any time by either the peer or the remote device. If
a L2CAP or RFCOMM connection requested an encrypted link, they will now
disconnect that link if the encryption gets disabled. Higher protocols
that don't care about encryption (like SDP) are not affected.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann
2008-07-14 20:13:45 +02:00
parent 77db198056
commit 9719f8afce
3 changed files with 25 additions and 6 deletions
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8
net/bluetooth/rfcomm/core.c
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@@ -2003,6 +2003,14 @@ static void rfcomm_encrypt_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
list_for_each_safe(p, n, &s->dlcs) {
d = list_entry(p, struct rfcomm_dlc, list);
if ((d->link_mode & (RFCOMM_LM_ENCRYPT | RFCOMM_LM_SECURE)) &&
(d->state == BT_CONNECTED ||
d->state == BT_CONFIG) &&
!status && encrypt == 0x00) {
__rfcomm_dlc_close(d, ECONNREFUSED);
continue;
}
if (!test_and_clear_bit(RFCOMM_AUTH_PENDING, &d->flags))
continue;