nbd: implement TLS support in the protocol negotiation

This extends the NBD protocol handling code so that it is capable
of negotiating TLS support during the connection setup. This involves
requesting the STARTTLS protocol option before any other NBD options.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1455129674-17255-14-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/qemu-nbd.c b/qemu-nbd.c
index 9710a26..8acd515 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -251,6 +251,7 @@ static void *nbd_client_thread(void *arg)
     }
 
     ret = nbd_receive_negotiate(QIO_CHANNEL(sioc), NULL, &nbdflags,
+                                NULL, NULL, NULL,
                                 &size, &local_error);
     if (ret < 0) {
         if (local_error) {
@@ -340,7 +341,8 @@ static gboolean nbd_accept(QIOChannel *ioc, GIOCondition cond, gpointer opaque)
 
     nb_fds++;
     nbd_update_server_watch();
-    nbd_client_new(newproto ? NULL : exp, cioc, nbd_client_closed);
+    nbd_client_new(newproto ? NULL : exp, cioc,
+                   NULL, NULL, nbd_client_closed);
     object_unref(OBJECT(cioc));
 
     return TRUE;