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authorJukka Rissanen <jukka.rissanen@linux.intel.com>2014-09-08 12:11:44 +0300
committerMarcel Holtmann <marcel@holtmann.org>2014-09-09 15:51:47 +0200
commitb2799cec22812f5f1aaaa57133df51876f685d84 (patch)
treebc356fec0af7f0e52297c15d5ba1fb9342bcd00b /net/bluetooth
parent2ae50d8d3aaf7154f72b44331b71f15799cdc1bb (diff)
downloadblackbird-op-linux-b2799cec22812f5f1aaaa57133df51876f685d84.tar.gz
blackbird-op-linux-b2799cec22812f5f1aaaa57133df51876f685d84.zip
Bluetooth: 6lowpan: Set the peer IPv6 address correctly
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> Cc: stable@vger.kernel.org # 3.17.x
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/6lowpan.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index 5532e6e804f0..b229aed3bf9a 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -671,6 +671,14 @@ static struct l2cap_chan *chan_open(struct l2cap_chan *pchan)
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(struct l2cap_chan *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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