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Commit 8b87efba authored by John W. Linville's avatar John W. Linville
Browse files
parents dc70a292 48439d50
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+0 −2
Original line number Diff line number Diff line
@@ -90,7 +90,6 @@ static const struct usb_device_id ath3k_table[] = {
	{ USB_DEVICE(0x0b05, 0x17d0) },
	{ USB_DEVICE(0x0CF3, 0x0036) },
	{ USB_DEVICE(0x0CF3, 0x3004) },
	{ USB_DEVICE(0x0CF3, 0x3005) },
	{ USB_DEVICE(0x0CF3, 0x3008) },
	{ USB_DEVICE(0x0CF3, 0x311D) },
	{ USB_DEVICE(0x0CF3, 0x311E) },
@@ -140,7 +139,6 @@ static const struct usb_device_id ath3k_blist_tbl[] = {
	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
+0 −1
Original line number Diff line number Diff line
@@ -162,7 +162,6 @@ static const struct usb_device_id blacklist_table[] = {
	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
+1 −0
Original line number Diff line number Diff line
@@ -406,6 +406,7 @@ static int h5_rx_3wire_hdr(struct hci_uart *hu, unsigned char c)
	    H5_HDR_PKT_TYPE(hdr) != HCI_3WIRE_LINK_PKT) {
		BT_ERR("Non-link packet received in non-active state");
		h5_reset_rx(h5);
		return 0;
	}

	h5->rx_func = h5_rx_payload;
+11 −1
Original line number Diff line number Diff line
@@ -289,10 +289,20 @@ static void hci_conn_timeout(struct work_struct *work)
{
	struct hci_conn *conn = container_of(work, struct hci_conn,
					     disc_work.work);
	int refcnt = atomic_read(&conn->refcnt);

	BT_DBG("hcon %p state %s", conn, state_to_string(conn->state));

	if (atomic_read(&conn->refcnt))
	WARN_ON(refcnt < 0);

	/* FIXME: It was observed that in pairing failed scenario, refcnt
	 * drops below 0. Probably this is because l2cap_conn_del calls
	 * l2cap_chan_del for each channel, and inside l2cap_chan_del conn is
	 * dropped. After that loop hci_chan_del is called which also drops
	 * conn. For now make sure that ACL is alive if refcnt is higher then 0,
	 * otherwise drop it.
	 */
	if (refcnt > 0)
		return;

	switch (conn->state) {
+46 −14
Original line number Diff line number Diff line
@@ -385,6 +385,16 @@ static const u8 gen_method[5][5] = {
	{ CFM_PASSKEY, CFM_PASSKEY, REQ_PASSKEY, JUST_WORKS, OVERLAP     },
};

static u8 get_auth_method(struct smp_chan *smp, u8 local_io, u8 remote_io)
{
	/* If either side has unknown io_caps, use JUST WORKS */
	if (local_io > SMP_IO_KEYBOARD_DISPLAY ||
	    remote_io > SMP_IO_KEYBOARD_DISPLAY)
		return JUST_WORKS;

	return gen_method[remote_io][local_io];
}

static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
						u8 local_io, u8 remote_io)
{
@@ -401,14 +411,11 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
	BT_DBG("tk_request: auth:%d lcl:%d rem:%d", auth, local_io, remote_io);

	/* If neither side wants MITM, use JUST WORKS */
	/* If either side has unknown io_caps, use JUST WORKS */
	/* Otherwise, look up method from the table */
	if (!(auth & SMP_AUTH_MITM) ||
	    local_io > SMP_IO_KEYBOARD_DISPLAY ||
	    remote_io > SMP_IO_KEYBOARD_DISPLAY)
	if (!(auth & SMP_AUTH_MITM))
		method = JUST_WORKS;
	else
		method = gen_method[remote_io][local_io];
		method = get_auth_method(smp, local_io, remote_io);

	/* If not bonding, don't ask user to confirm a Zero TK */
	if (!(auth & SMP_AUTH_BONDING) && method == JUST_CFM)
@@ -669,7 +676,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
{
	struct smp_cmd_pairing rsp, *req = (void *) skb->data;
	struct smp_chan *smp;
	u8 key_size, auth;
	u8 key_size, auth, sec_level;
	int ret;

	BT_DBG("conn %p", conn);
@@ -695,7 +702,19 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
	/* We didn't start the pairing, so match remote */
	auth = req->auth_req;

	conn->hcon->pending_sec_level = authreq_to_seclevel(auth);
	sec_level = authreq_to_seclevel(auth);
	if (sec_level > conn->hcon->pending_sec_level)
		conn->hcon->pending_sec_level = sec_level;

	/* If we need MITM check that it can be acheived */
	if (conn->hcon->pending_sec_level >= BT_SECURITY_HIGH) {
		u8 method;

		method = get_auth_method(smp, conn->hcon->io_capability,
					 req->io_capability);
		if (method == JUST_WORKS || method == JUST_CFM)
			return SMP_AUTH_REQUIREMENTS;
	}

	build_pairing_cmd(conn, req, &rsp, auth);

@@ -743,6 +762,16 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
	if (check_enc_key_size(conn, key_size))
		return SMP_ENC_KEY_SIZE;

	/* If we need MITM check that it can be acheived */
	if (conn->hcon->pending_sec_level >= BT_SECURITY_HIGH) {
		u8 method;

		method = get_auth_method(smp, req->io_capability,
					 rsp->io_capability);
		if (method == JUST_WORKS || method == JUST_CFM)
			return SMP_AUTH_REQUIREMENTS;
	}

	get_random_bytes(smp->prnd, sizeof(smp->prnd));

	smp->prsp[0] = SMP_CMD_PAIRING_RSP;
@@ -838,6 +867,7 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
	struct smp_cmd_pairing cp;
	struct hci_conn *hcon = conn->hcon;
	struct smp_chan *smp;
	u8 sec_level;

	BT_DBG("conn %p", conn);

@@ -847,7 +877,9 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
	if (!(conn->hcon->link_mode & HCI_LM_MASTER))
		return SMP_CMD_NOTSUPP;

	hcon->pending_sec_level = authreq_to_seclevel(rp->auth_req);
	sec_level = authreq_to_seclevel(rp->auth_req);
	if (sec_level > hcon->pending_sec_level)
		hcon->pending_sec_level = sec_level;

	if (smp_ltk_encrypt(conn, hcon->pending_sec_level))
		return 0;
@@ -901,9 +933,12 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
	if (smp_sufficient_security(hcon, sec_level))
		return 1;

	if (sec_level > hcon->pending_sec_level)
		hcon->pending_sec_level = sec_level;

	if (hcon->link_mode & HCI_LM_MASTER)
		if (smp_ltk_encrypt(conn, sec_level))
			goto done;
		if (smp_ltk_encrypt(conn, hcon->pending_sec_level))
			return 0;

	if (test_and_set_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags))
		return 0;
@@ -918,7 +953,7 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
	 * requires it.
	 */
	if (hcon->io_capability != HCI_IO_NO_INPUT_OUTPUT ||
	    sec_level > BT_SECURITY_MEDIUM)
	    hcon->pending_sec_level > BT_SECURITY_MEDIUM)
		authreq |= SMP_AUTH_MITM;

	if (hcon->link_mode & HCI_LM_MASTER) {
@@ -937,9 +972,6 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)

	set_bit(SMP_FLAG_INITIATOR, &smp->flags);

done:
	hcon->pending_sec_level = sec_level;

	return 0;
}