From f3c32fce3688fe1f13ceb0777faa1fc19d66d1fc Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Wed, 11 May 2016 16:39:43 -0600 Subject: [PATCH] nbd: Detect servers that send unexpected error values Add some debugging to flag servers that are not compliant to the NBD protocol. This would have flagged the server bug fixed in commit c0301fcc. Signed-off-by: Eric Blake Reviewed-by: Alex Bligh Message-Id: <1463006384-7734-11-git-send-email-eblake@redhat.com> Signed-off-by: Paolo Bonzini --- nbd/client.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/nbd/client.c b/nbd/client.c index 20e6daf70f..e8bf9fb540 100644 --- a/nbd/client.c +++ b/nbd/client.c @@ -33,8 +33,10 @@ static int nbd_errno_to_system_errno(int err) return ENOMEM; case NBD_ENOSPC: return ENOSPC; - case NBD_EINVAL: default: + TRACE("Squashing unexpected error %d to EINVAL", err); + /* fallthrough */ + case NBD_EINVAL: return EINVAL; } } -- 2.11.0