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 <stephen.roettger@zero-entropy.de>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c
index e0da175..581a595 100644
--- a/net/ieee802154/dgram.c
+++ b/net/ieee802154/dgram.c
@@ -291,6 +291,9 @@
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 @@
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: