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Re: [Qemu-devel] [PATCH] qemu-img: fix regression copying secrets during
From: |
Daniel P . Berrangé |
Subject: |
Re: [Qemu-devel] [PATCH] qemu-img: fix regression copying secrets during convert |
Date: |
Tue, 14 Aug 2018 13:38:22 +0100 |
User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Tue, Aug 14, 2018 at 01:38:24PM +0200, Kevin Wolf wrote:
> Am 14.08.2018 um 11:35 hat Daniel P. Berrangé geschrieben:
> > When the convert command is creating an output file that needs
> > secrets, we need to ensure those secrets are passed to both the
> > blk_new_open and bdrv_create API calls.
> >
> > This is done by qemu-img extracting all opts matching the name
> > suffix "key-secret". Unfortunately the code doing this was run after the
> > call to bdrv_create(), which meant the QemuOpts it was extracting
> > secrets from was now empty.
> >
> > Previously this worked by luks as a bug meant the "key-secret"
> > parameters were not purged from the QemuOpts. This bug was fixed in
> >
> > commit b76b4f604521e59f857d6177bc55f6f2e41fd392
> > Author: Kevin Wolf <address@hidden>
> > Date: Thu Jan 11 16:18:08 2018 +0100
> >
> > qcow2: Use visitor for options in qcow2_create()
> >
> > Exposing the latent bug in qemu-img. This fix simply moves the copying
> > of secrets to before the bdrv_create() call.
> >
> > Signed-off-by: Daniel P. Berrangé <address@hidden>
>
> Cc: address@hidden
>
> > @@ -2461,9 +2458,9 @@ out:
> > qemu_progress_print(100, 0);
> > }
> > qemu_progress_end();
> > - qemu_opts_del(opts);
>
> Why don't we need to free opts any more?
Urgh, that's a mistake, I deleted the wrong line. v2 arriving soon....
>
> > qemu_opts_free(create_opts);
> > qemu_opts_del(sn_opts);
> > + qobject_unref(open_opts);
> > blk_unref(s.target);
> > if (s.src) {
> > for (bs_i = 0; bs_i < s.src_num; bs_i++) {
Regards,
Daniel
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