mesh: Verify padding bits in Friend Poll messages

The padding bits in a Friend Poll message must be zero.
See MshPRFv1.0.1 section 3.6.5.1.

Signed-off-by: Manika Shrivastava <manika.sh@samsung.com>
Signed-off-by: Ayush Garg <ayush.garg@samsung.com>

diff --git a/mesh/net.c b/mesh/net.c
index a19575a..a5dcdb1 100644 (file)
--- a/mesh/net.c
+++ b/mesh/net.c
@@ -2057,7 +2057,7 @@ static bool ctl_received(struct mesh_net *net, uint32_t net_key_id,
                break;
 
        case NET_OP_FRND_POLL:
-               if (len != 1 || ttl)
+               if (len != 1 || ttl || pkt[0] > 1)
                        return false;
 
                print_packet("Rx-NET_OP_FRND_POLL", pkt, len);