linux-kernel - Re: [PATCH seccomp 2/8] parisc: Enable seccomp architecture tracking

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Date:   Thu, 5 Nov 2020 14:14:15 +0100
From:   Helge Deller <deller@....de>
To:     YiFei Zhu <zhuyifei1999@...il.com>,
        containers@...ts.linux-foundation.org
Cc:     YiFei Zhu <yifeifz2@...inois.edu>, linux-csky@...r.kernel.org,
        linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org,
        linux-sh@...r.kernel.org, linux-xtensa@...ux-xtensa.org,
        linux-kernel@...r.kernel.org, Aleksa Sarai <cyphar@...har.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Andy Lutomirski <luto@...capital.net>,
        David Laight <David.Laight@...lab.com>,
        Dimitrios Skarlatos <dskarlat@...cmu.edu>,
        Giuseppe Scrivano <gscrivan@...hat.com>,
        Hubertus Franke <frankeh@...ibm.com>,
        Jack Chen <jianyan2@...inois.edu>,
        Jann Horn <jannh@...gle.com>,
        Josep Torrellas <torrella@...inois.edu>,
        Kees Cook <keescook@...omium.org>,
        Tianyin Xu <tyxu@...inois.edu>,
        Tobin Feldman-Fitzthum <tobin@....com>,
        Tycho Andersen <tycho@...ho.pizza>,
        Valentin Rothberg <vrothber@...hat.com>,
        Will Drewry <wad@...omium.org>
Subject: Re: [PATCH seccomp 2/8] parisc: Enable seccomp architecture tracking

On 11/3/20 2:42 PM, YiFei Zhu wrote:
> From: YiFei Zhu <yifeifz2@...inois.edu>
>
> To enable seccomp constant action bitmaps, we need to have a static
> mapping to the audit architecture and system call table size. Add these
> for parisc.
> > Signed-off-by: YiFei Zhu <yifeifz2@...inois.edu>

I did compile- and boot-tested it, works on 32- and 64-bit parisc kernel.
I don't know how to test it actually, but anyway:

Acked-by: Helge Deller <deller@....de>

Thanks!
Helge

> ---
>  arch/parisc/include/asm/Kbuild    |  1 -
>  arch/parisc/include/asm/seccomp.h | 22 ++++++++++++++++++++++
>  2 files changed, 22 insertions(+), 1 deletion(-)
>  create mode 100644 arch/parisc/include/asm/seccomp.h
>
> diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
> index e3ee5c0bfe80..f16c4db80116 100644
> --- a/arch/parisc/include/asm/Kbuild
> +++ b/arch/parisc/include/asm/Kbuild
> @@ -5,5 +5,4 @@ generated-y += syscall_table_c32.h
>  generic-y += kvm_para.h
>  generic-y += local64.h
>  generic-y += mcs_spinlock.h
> -generic-y += seccomp.h
>  generic-y += user.h
> diff --git a/arch/parisc/include/asm/seccomp.h b/arch/parisc/include/asm/seccomp.h
> new file mode 100644
> index 000000000000..b058b2220322
> --- /dev/null
> +++ b/arch/parisc/include/asm/seccomp.h
> @@ -0,0 +1,22 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#ifndef _ASM_SECCOMP_H
> +#define _ASM_SECCOMP_H
> +
> +#include <asm-generic/seccomp.h>
> +
> +#ifdef CONFIG_64BIT
> +# define SECCOMP_ARCH_NATIVE		AUDIT_ARCH_PARISC64
> +# define SECCOMP_ARCH_NATIVE_NR		NR_syscalls
> +# define SECCOMP_ARCH_NATIVE_NAME	"parisc64"
> +# ifdef CONFIG_COMPAT
> +#  define SECCOMP_ARCH_COMPAT		AUDIT_ARCH_PARISC
> +#  define SECCOMP_ARCH_COMPAT_NR	NR_syscalls
> +#  define SECCOMP_ARCH_COMPAT_NAME	"parisc"
> +# endif
> +#else /* !CONFIG_64BIT */
> +# define SECCOMP_ARCH_NATIVE		AUDIT_ARCH_PARISC
> +# define SECCOMP_ARCH_NATIVE_NR		NR_syscalls
> +# define SECCOMP_ARCH_NATIVE_NAME	"parisc"
> +#endif
> +
> +#endif /* _ASM_SECCOMP_H */
>