ieee802154/dgram: Pass source address in dgram_recvmsg (6364e6ee) · Commits · 戴 / test

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>

net/ieee802154/dgram.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -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:

Admin message