diff options
| -rw-r--r-- | net/nfc/llcp/sock.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c index debc54aa8a41..d511a4c2fef6 100644 --- a/net/nfc/llcp/sock.c +++ b/net/nfc/llcp/sock.c @@ -663,11 +663,28 @@ static int llcp_sock_recvmsg(struct kiocb *iocb, struct socket *sock, return -EFAULT; } + if (sk->sk_type == SOCK_DGRAM && msg->msg_name) { + struct nfc_llcp_ui_cb *ui_cb = nfc_llcp_ui_skb_cb(skb); + struct sockaddr_nfc_llcp sockaddr; + + pr_debug("Datagram socket %d %d\n", ui_cb->dsap, ui_cb->ssap); + + sockaddr.sa_family = AF_NFC; + sockaddr.nfc_protocol = NFC_PROTO_NFC_DEP; + sockaddr.dsap = ui_cb->dsap; + sockaddr.ssap = ui_cb->ssap; + + memcpy(msg->msg_name, &sockaddr, sizeof(sockaddr)); + msg->msg_namelen = sizeof(sockaddr); + } + /* Mark read part of skb as used */ if (!(flags & MSG_PEEK)) { /* SOCK_STREAM: re-queue skb if it contains unreceived data */ - if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_RAW) { + if (sk->sk_type == SOCK_STREAM || + sk->sk_type == SOCK_DGRAM || + sk->sk_type == SOCK_RAW) { skb_pull(skb, copied); if (skb->len) { skb_queue_head(&sk->sk_receive_queue, skb); |