From 6364e6ee788ae60f1c2de5c59e39adb157327e6c Mon Sep 17 00:00:00 2001 From: =?utf8?q?Stephen=20R=C3=B6ttger?= Date: Tue, 26 Mar 2013 12:41:29 +0000 Subject: [PATCH] ieee802154/dgram: Pass source address in dgram_recvmsg MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This patch lets dgram_recvmsg fill in the sockaddr struct in msg->msg_name with the source address of the packet. This is used by the userland functions recvmsg and recvfrom to get the senders address. [Stefan: Changed from old zigbee legacy tree to mainline] Signed-off-by: Stephen Röttger Signed-off-by: Stefan Schmidt Signed-off-by: David S. Miller --- net/ieee802154/dgram.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c index e0da175f8e5b..581a59504bd5 100644 --- a/net/ieee802154/dgram.c +++ b/net/ieee802154/dgram.c @@ -291,6 +291,9 @@ static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk, size_t copied = 0; int err = -EOPNOTSUPP; struct sk_buff *skb; + struct sockaddr_ieee802154 *saddr; + + saddr = (struct sockaddr_ieee802154 *)msg->msg_name; skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) @@ -309,6 +312,13 @@ static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk, sock_recv_ts_and_drops(msg, sk, skb); + if (saddr) { + saddr->family = AF_IEEE802154; + saddr->addr = mac_cb(skb)->sa; + } + if (addr_len) + *addr_len = sizeof(*saddr); + if (flags & MSG_TRUNC) copied = skb->len; done: -- 2.20.1