Commit 6d2cd978 authored by Samuel Ortiz's avatar Samuel Ortiz
Browse files

NFC: llcp: Terminate connection when receiving a DISC on (0,0) 



According to the LLCP specs, we must terminate the LLCP link when receiving
a DISC with both ssap and dsap set to 0.

Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent c470e319

net/nfc/llcp/llcp.c

+6 −0
Original line number Diff line number Diff line
@@ -1106,6 +1106,12 @@ static void nfc_llcp_recv_disc(struct nfc_llcp_local *local, 
	dsap = nfc_llcp_dsap(skb);

	ssap = nfc_llcp_ssap(skb);



	if ((dsap == 0) && (ssap == 0)) {

		pr_debug("Connection termination");

		nfc_dep_link_down(local->dev);

		return;

	}



	llcp_sock = nfc_llcp_sock_get(local, dsap, ssap);

	if (llcp_sock == NULL) {

		nfc_llcp_send_dm(local, dsap, ssap, LLCP_DM_NOCONN);