tools: hv: daemon should check type of received Netlink msg
Tomas Hozza [Wed, 13 Mar 2013 13:14:14 +0000 (14:14 +0100)]
HyperV KVP daemon should check nlmsg_type in received netlink message
header. If message type is NLMSG_DONE daemon can proceed with processing
otherwise it should wait for next message.

Signed-off-by: Tomas Hozza <thozza@redhat.com>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

tools/hv/hv_kvp_daemon.c

index 704a0f9..5a1f648 100644 (file)
@@ -1503,6 +1503,10 @@ int main(void)
                }
 
                incoming_msg = (struct nlmsghdr *)kvp_recv_buffer;
+
+               if (incoming_msg->nlmsg_type != NLMSG_DONE)
+                       continue;
+
                incoming_cn_msg = (struct cn_msg *)NLMSG_DATA(incoming_msg);
                hv_msg = (struct hv_kvp_msg *)incoming_cn_msg->data;