Bluetooth kernel now restricts LE L2CAP sockets to ATT channels only.
For LE L2CAP socket bind, ATT CID is now mandatory. Reference: kernel patch
bfe4655f05d7ec4a7c0c1c7e4051862f824cd8ec
---
tools/l2test.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/l2test.c b/tools/l2test.c
index 125532b..c5c8763 100644
--- a/tools/l2test.c
+++ b/tools/l2test.c
@@ -280,6 +280,8 @@ static int do_connect(char *svr)
addr.l2_family = AF_BLUETOOTH;
bacpy(&addr.l2_bdaddr, &bdaddr);
addr.l2_bdaddr_type = bdaddr_type;
+ if (cid)
+ addr.l2_cid = htobs(cid);
if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
syslog(LOG_ERR, "Can't bind socket: %s (%d)",
--
1.8.3.1
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