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NFC: Forward LLCP datagrams to userspace

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With connection less PDUs we have to send the SSAP and DSAP as well.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2012-10-15 17:44:44 +02:00
parent 968272bf00
commit 31ca61a8df
1 changed files with 18 additions and 1 deletions
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19
net/nfc/llcp/sock.c
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@ -663,11 +663,28 @@ static int llcp_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
return -EFAULT; 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 */ /* Mark read part of skb as used */
if (!(flags & MSG_PEEK)) { if (!(flags & MSG_PEEK)) {
/* SOCK_STREAM: re-queue skb if it contains unreceived data */ /* 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); skb_pull(skb, copied);
if (skb->len) { if (skb->len) {
skb_queue_head(&sk->sk_receive_queue, skb); skb_queue_head(&sk->sk_receive_queue, skb);