From: Stephen Röttger Date: Tue, 26 Mar 2013 12:41:29 +0000 (+0000) Subject: ieee802154/dgram: Pass source address in dgram_recvmsg X-Git-Tag: MMI-PSA29.97-13-9~14469^2~323 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6364e6ee788ae60f1c2de5c59e39adb157327e6c;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git ieee802154/dgram: Pass source address in dgram_recvmsg 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 --- 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: