Bluetooth: Refuse ConfigRsp with different mode
If our mode is Basic Mode we have to refuse any ConfigRsp that proposes
a different mode.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index ca9bab2..c590408 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -2747,7 +2747,6 @@
rfc.mode != pi->mode)
return -ECONNREFUSED;
- pi->mode = rfc.mode;
pi->fcs = 0;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
@@ -2756,6 +2755,11 @@
}
}
+ if (pi->mode == L2CAP_MODE_BASIC && pi->mode != rfc.mode)
+ return -ECONNREFUSED;
+
+ pi->mode = rfc.mode;
+
if (*result == L2CAP_CONF_SUCCESS) {
switch (rfc.mode) {
case L2CAP_MODE_ERTM: