[libvirt] [PATCH 5/5] qemu/rbd: improve rbd device specification

Tommi Virtanen tommi.virtanen at dreamhost.com
Fri Sep 16 16:52:35 UTC 2011


On Thu, Sep 15, 2011 at 13:52, Sage Weil <sage at newdream.net> wrote:
> +static int buildRBDString(virConnectPtr conn,
...
> +        /* look up secret */
> +        snprintf(idDomain, sizeof(idDomain), "%s/%s", disk->authId,
> +                 disk->authDomain);
> +        sec = virSecretLookupByUsage(conn,
> +                                     VIR_SECRET_USAGE_TYPE_CEPH,
> +                                     idDomain);
...
> +            secret = (char *)conn->secretDriver->getValue(sec, &secret_size, 0,
> +                                   VIR_SECRET_GET_VALUE_INTERNAL_CALL);
> +            /* qemu/librbd wants it base64 encoded */
> +            base64_encode_alloc(secret, secret_size, &base64);
> +            virBufferEscape(opt, ":", ":key=%s:auth_supported=cephx\\;none",
> +                            base64);

If I'm reading this right, that puts the ceph secret on the kvm
command line. That's not good, that makes it visible to anyone on the
host.




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