When receiving such frame, the sockets waiting for a connection to finish should be woken up. Connecting to an unbound LLCP service will trigger a DM as a response. Signed-off-by: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx> --- net/nfc/llcp/llcp.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c index 6094a20..f3bc0a9 100644 --- a/net/nfc/llcp/llcp.c +++ b/net/nfc/llcp/llcp.c @@ -958,6 +958,45 @@ static void nfc_llcp_recv_cc(struct nfc_llcp_local *local, struct sk_buff *skb) nfc_llcp_sock_put(llcp_sock); } +static void nfc_llcp_recv_dm(struct nfc_llcp_local *local, struct sk_buff *skb) +{ + struct nfc_llcp_sock *llcp_sock; + struct sock *sk; + u8 dsap, ssap, reason; + + dsap = nfc_llcp_dsap(skb); + ssap = nfc_llcp_ssap(skb); + reason = skb->data[2]; + + pr_debug("%d %d reason %d\n", ssap, dsap, reason); + + switch (reason) { + case LLCP_DM_NOBOUND: + case LLCP_DM_REJ: + llcp_sock = nfc_llcp_connecting_sock_get(local, dsap); + break; + + default: + llcp_sock = nfc_llcp_sock_get(local, dsap, ssap); + break; + } + + if (llcp_sock == NULL) { + pr_err("Invalid DM\n"); + return; + } + + sk = &llcp_sock->sk; + + sk->sk_err = ENXIO; + sk->sk_state = LLCP_CLOSED; + sk->sk_state_change(sk); + + nfc_llcp_sock_put(llcp_sock); + + return; +} + static void nfc_llcp_rx_work(struct work_struct *work) { struct nfc_llcp_local *local = container_of(work, struct nfc_llcp_local, @@ -1001,6 +1040,11 @@ static void nfc_llcp_rx_work(struct work_struct *work) nfc_llcp_recv_cc(local, skb); break; + case LLCP_PDU_DM: + pr_debug("DM\n"); + nfc_llcp_recv_dm(local, skb); + break; + case LLCP_PDU_I: case LLCP_PDU_RR: case LLCP_PDU_RNR: -- 1.7.10 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html