[libvirt] [PATCH 2/2] viriscsi: Request more random bits for interface name

Daniel P. Berrangé berrange at redhat.com
Wed Aug 1 12:16:31 UTC 2018


On Wed, Aug 01, 2018 at 01:44:33PM +0200, Michal Privoznik wrote:
> In virStorageBackendCreateIfaceIQN() the virRandomBits() is
> called in order to use random bits to generate random name for
> new interface. However, virAsprintf() is expecting 32 bits and we
> are requesting only 30.
> 
> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
> ---
>  src/util/viriscsi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/util/viriscsi.c b/src/util/viriscsi.c
> index 653b4fd932..f00aeb53a7 100644
> --- a/src/util/viriscsi.c
> +++ b/src/util/viriscsi.c
> @@ -221,7 +221,7 @@ virStorageBackendCreateIfaceIQN(const char *initiatoriqn,
>  
>      if (virAsprintf(&temp_ifacename,
>                      "libvirt-iface-%08llx",
> -                    (unsigned long long)virRandomBits(30)) < 0)
> +                    (unsigned long long)virRandomBits(32)) < 0)
>          return -1;
>  
>      VIR_DEBUG("Attempting to create interface '%s' with IQN '%s'",

Reviewed-by: Daniel P. Berrangé <berrange at redhat.com>

Regards,
Daniel
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