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Date: Wed, 11 Nov 2020 07:33:49 -0600
From: YiFei Zhu <zhuyifei1999@...il.com>
To: 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: [PATCH seccomp v2 3/8] powerpc: Enable seccomp architecture tracking
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 powerpc.
__LITTLE_ENDIAN__ is used here instead of CONFIG_CPU_LITTLE_ENDIAN
to keep it consistent with asm/syscall.h.
Signed-off-by: YiFei Zhu <yifeifz2@...inois.edu>
---
arch/powerpc/include/asm/seccomp.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h
index 51209f6071c5..ac2033f134f0 100644
--- a/arch/powerpc/include/asm/seccomp.h
+++ b/arch/powerpc/include/asm/seccomp.h
@@ -8,4 +8,27 @@
#include <asm-generic/seccomp.h>
+#ifdef __LITTLE_ENDIAN__
+#define __SECCOMP_ARCH_LE __AUDIT_ARCH_LE
+#define __SECCOMP_ARCH_LE_NAME "le"
+#else
+#define __SECCOMP_ARCH_LE 0
+#define __SECCOMP_ARCH_LE_NAME
+#endif
+
+#ifdef CONFIG_PPC64
+# define SECCOMP_ARCH_NATIVE (AUDIT_ARCH_PPC64 | __SECCOMP_ARCH_LE)
+# define SECCOMP_ARCH_NATIVE_NR NR_syscalls
+# define SECCOMP_ARCH_NATIVE_NAME "ppc64" __SECCOMP_ARCH_LE_NAME
+# ifdef CONFIG_COMPAT
+# define SECCOMP_ARCH_COMPAT (AUDIT_ARCH_PPC | __SECCOMP_ARCH_LE)
+# define SECCOMP_ARCH_COMPAT_NR NR_syscalls
+# define SECCOMP_ARCH_COMPAT_NAME "ppc" __SECCOMP_ARCH_LE_NAME
+# endif
+#else /* !CONFIG_PPC64 */
+# define SECCOMP_ARCH_NATIVE (AUDIT_ARCH_PPC | __SECCOMP_ARCH_LE)
+# define SECCOMP_ARCH_NATIVE_NR NR_syscalls
+# define SECCOMP_ARCH_NATIVE_NAME "ppc" __SECCOMP_ARCH_LE_NAME
+#endif
+
#endif /* _ASM_POWERPC_SECCOMP_H */
--
2.29.2
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