From: Gabriel Krisman Bertazi <krisman@collabora.com>
To: tglx@linutronix.de
Cc: linux-kernel@vger.kernel.org, kernel@collabora.com,
willy@infradead.org, luto@kernel.org, gofmanp@gmail.com,
keescook@chromium.org, linux-kselftest@vger.kernel.org,
shuah@kernel.org, Gabriel Krisman Bertazi <krisman@collabora.com>
Subject: [PATCH v4 0/2] Syscall User Redirection
Date: Thu, 16 Jul 2020 15:31:39 -0400 [thread overview]
Message-ID: <20200716193141.4068476-1-krisman@collabora.com> (raw)
Hi,
This is v4 of Syscall User Redirection. The implementation itself is
not modified from v3, it only applies the latest round of reviews to the
selftests.
__NR_syscalls is not really exported in header files other than
asm-generic for every architecture, so it felt safer to optionally
expose it with a fallback to a high value.
Also, I didn't expose tests for PR_GET as that is not currently
implemented. If possible, I'd have it supported by a future patchset,
since it is not immediately necessary to support this feature.
Finally, one question: Which tree would this go through?
Gabriel Krisman Bertazi (2):
kernel: Implement selective syscall userspace redirection
selftests: Add kselftest for syscall user dispatch
arch/Kconfig | 20 ++
arch/x86/Kconfig | 1 +
arch/x86/entry/common.c | 5 +
arch/x86/include/asm/thread_info.h | 4 +-
arch/x86/kernel/signal_compat.c | 2 +-
fs/exec.c | 2 +
include/linux/sched.h | 3 +
include/linux/syscall_user_dispatch.h | 50 ++++
include/uapi/asm-generic/siginfo.h | 3 +-
include/uapi/linux/prctl.h | 5 +
kernel/Makefile | 1 +
kernel/fork.c | 1 +
kernel/sys.c | 5 +
kernel/syscall_user_dispatch.c | 92 +++++++
tools/testing/selftests/Makefile | 1 +
.../syscall_user_dispatch/.gitignore | 2 +
.../selftests/syscall_user_dispatch/Makefile | 9 +
.../selftests/syscall_user_dispatch/config | 1 +
.../syscall_user_dispatch.c | 256 ++++++++++++++++++
19 files changed, 460 insertions(+), 3 deletions(-)
create mode 100644 include/linux/syscall_user_dispatch.h
create mode 100644 kernel/syscall_user_dispatch.c
create mode 100644 tools/testing/selftests/syscall_user_dispatch/.gitignore
create mode 100644 tools/testing/selftests/syscall_user_dispatch/Makefile
create mode 100644 tools/testing/selftests/syscall_user_dispatch/config
create mode 100644 tools/testing/selftests/syscall_user_dispatch/syscall_user_dispatch.c
--
2.27.0
next reply other threads:[~2020-07-16 19:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-16 19:31 Gabriel Krisman Bertazi [this message]
2020-07-16 19:31 ` [PATCH v4 1/2] kernel: Implement selective syscall userspace redirection Gabriel Krisman Bertazi
2020-07-16 21:06 ` Matthew Wilcox
2020-07-16 21:26 ` Kees Cook
2020-07-17 0:20 ` Andy Lutomirski
2020-07-17 2:15 ` Gabriel Krisman Bertazi
2020-07-17 4:48 ` Andy Lutomirski
2020-07-21 12:06 ` Mark Rutland
2020-07-20 9:23 ` Thomas Gleixner
2020-07-20 9:44 ` Will Deacon
2020-07-20 10:08 ` Thomas Gleixner
2020-07-20 13:46 ` Gabriel Krisman Bertazi
2020-07-16 19:31 ` [PATCH v4 2/2] selftests: Add kselftest for syscall user dispatch Gabriel Krisman Bertazi
2020-07-16 20:04 ` [PATCH v4 0/2] Syscall User Redirection Kees Cook
2020-07-16 20:22 ` Christian Brauner
2020-07-16 20:25 ` Kees Cook
2020-07-16 20:29 ` Christian Brauner
2020-07-16 20:30 ` Gabriel Krisman Bertazi
2020-07-16 21:06 ` Carlos O'Donell
2020-08-02 12:01 ` Pavel Machek
2020-08-04 14:26 ` Gabriel Krisman Bertazi
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