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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: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2013-04-03 16:44:44 +02:00
parent c470e319b4
commit 6d2cd978e5
1 changed files with 6 additions and 0 deletions
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6
net/nfc/llcp/llcp.c
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@ -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);