Re: [PATCH] LSM: Revive CONFIG_DEFAULT_SECURITY_* for "make oldconfig"

[Tetsuo Handa]

On 2019/03/30 4:36, Kees Cook wrote:
> Note that since TOMOYO can be fully stacked against the other legacy
> major LSMs, when it is selected, it explicitly disables the other LSMs
> to avoid them also initializing since TOMOYO does not expect this
> currently.

Excuse me, but isn't this exception confusing, for DEFAULT_SECURITY_TOMOYO
and DEFAULT_SECURITY_DAC are "opt-in" whereas DEFAULT_SECURITY_SELINUX and
DEFAULT_SECURITY_SMACK and DEFAULT_SECURITY_APPARMOR are "opt-out" ?

If SELinux/Smack/AppArmor people think this mixture is fine, I'm fine though...

>  config LSM
>  	string "Ordered list of enabled LSMs"
> +	default "yama,loadpin,safesetid,integrity,smack,selinux,tomoyo,apparmor" if DEFAULT_SECURITY_SMACK
> +	default "yama,loadpin,safesetid,integrity,apparmor,selinux,smack,tomoyo" if DEFAULT_SECURITY_APPARMOR
> +	default "yama,loadpin,safesetid,integrity,tomoyo" if DEFAULT_SECURITY_TOMOYO
> +	default "yama,loadpin,safesetid,integrity" if DEFAULT_SECURITY_DAC
>  	default "yama,loadpin,safesetid,integrity,selinux,smack,tomoyo,apparmor"
>  	help
>  	  A comma-separated list of LSMs, in initialization order.
>