net: qrtr: send msgs from local of same id as broadcast (6dbf02ac) · Commits · 戴 / test

If the local node id(qrtr_local_nid) is not modified after its initialization, it equals to the broadcast node id(QRTR_NODE_BCAST). So the messages from local node should not be taken as broadcast and keep the process going to send them out anyway. The definitions are as follow: static unsigned int qrtr_local_nid = NUMA_NO_NODE; Fixes: ("net: qrtr: Broadcast messages only from control port") Signed-off-by:

Wang Wenhu <wenhu.wang@vivo.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

net/qrtr/qrtr.c

+4 −3

Original line number	Diff line number	Diff line
		@@ -906,20 +906,21 @@ static int qrtr_sendmsg(struct socket sock, struct msghdr msg, size_t len)

		node = NULL;
		if (addr->sq_node == QRTR_NODE_BCAST) {
		enqueue_fn = qrtr_bcast_enqueue;
		if (addr->sq_port != QRTR_PORT_CTRL) {
		if (addr->sq_port != QRTR_PORT_CTRL &&
		qrtr_local_nid != QRTR_NODE_BCAST) {
		release_sock(sk);
		return -ENOTCONN;
		}
		enqueue_fn = qrtr_bcast_enqueue;
		} else if (addr->sq_node == ipc->us.sq_node) {
		enqueue_fn = qrtr_local_enqueue;
		} else {
		enqueue_fn = qrtr_node_enqueue;
		node = qrtr_node_lookup(addr->sq_node);
		if (!node) {
		release_sock(sk);
		return -ECONNRESET;
		}
		enqueue_fn = qrtr_node_enqueue;
		}

		plen = (len + 3) & ~3;

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