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Subject[PATCH 3.17 104/146] Bluetooth: 6lowpan: Set the peer IPv6 address correctly
Date
3.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jukka Rissanen <jukka.rissanen@linux.intel.com>

commit b2799cec22812f5f1aaaa57133df51876f685d84 upstream.

The peer IPv6 address contained wrong U/L bit in the EUI-64 part.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
net/bluetooth/6lowpan.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -671,6 +671,14 @@ static struct l2cap_chan *chan_open(stru
return chan;
}

+static void set_ip_addr_bits(u8 addr_type, u8 *addr)
+{
+ if (addr_type == BDADDR_LE_PUBLIC)
+ *addr |= 0x02;
+ else
+ *addr &= ~0x02;
+}
+
static struct l2cap_chan *add_peer_chan(struct l2cap_chan *chan,
struct lowpan_dev *dev)
{
@@ -693,6 +701,11 @@ static struct l2cap_chan *add_peer_chan(
memcpy(&peer->eui64_addr, (u8 *)&peer->peer_addr.s6_addr + 8,
EUI64_ADDR_LEN);

+ /* IPv6 address needs to have the U/L bit set properly so toggle
+ * it back here.
+ */
+ set_ip_addr_bits(chan->dst_type, (u8 *)&peer->peer_addr.s6_addr + 8);
+
write_lock_irqsave(&devices_lock, flags);
INIT_LIST_HEAD(&peer->list);
peer_add(dev, peer);



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