Re: [Qemu-devel] [PATCH] seccomp: add getrusage() to the syscall whitelist for Open vSwitch

[Paolo Bonzini <pbonzini@redhat.com>]

Il 06/03/2014 15:50, Paul Moore ha scritto:
> When QEMU is used with Open vSwitch it is common to create netdev
> script and downscript scripts that use the ovs-vsctl command to manage
> the underlying network devices.  Unfortunately, ovs-vsctl calls the
> getrusage() syscall which is not currently present in the QEMU/seccomp
> whistelist.
>
> Signed-off-by: Paul Moore <pmoore@redhat.com>
> ---
>  qemu-seccomp.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/qemu-seccomp.c b/qemu-seccomp.c
> index caa926e..86210a4 100644
> --- a/qemu-seccomp.c
> +++ b/qemu-seccomp.c
> @@ -225,7 +225,8 @@ static const struct QemuSeccompSyscall seccomp_whitelist[] = {
>      { SCMP_SYS(fchmod), 240 },
>      { SCMP_SYS(shmget), 240 },
>      { SCMP_SYS(shmat), 240 },
> -    { SCMP_SYS(shmdt), 240 }
> +    { SCMP_SYS(shmdt), 240 },
> +    { SCMP_SYS(getrusage), 240 }
>  };
>
>  int seccomp_start(void)
>
>
>

NACK, when QEMU is used in sandbox mode you should use file descriptor 
passing instead.

Paolo