diff options
Diffstat (limited to 'features/seccomp/asm-syscall.h-add-syscall_get_arch.patch')
| -rw-r--r-- | features/seccomp/asm-syscall.h-add-syscall_get_arch.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/features/seccomp/asm-syscall.h-add-syscall_get_arch.patch b/features/seccomp/asm-syscall.h-add-syscall_get_arch.patch new file mode 100644 index 00000000..d95c897d --- /dev/null +++ b/features/seccomp/asm-syscall.h-add-syscall_get_arch.patch @@ -0,0 +1,59 @@ +From 2ca6c225eacea82fd7fdcd24312c817e1e8352e4 Mon Sep 17 00:00:00 2001 +From: Will Drewry <wad@chromium.org> +Date: Thu, 12 Apr 2012 16:47:55 -0500 +Subject: [PATCH] asm/syscall.h: add syscall_get_arch + +commit 07bd18d00d5dcf84eb22f8120f47f09c3d8fe27d upstream. + +Adds a stub for a function that will return the AUDIT_ARCH_* value +appropriate to the supplied task based on the system call convention. + +For audit's use, the value can generally be hard-coded at the +audit-site. However, for other functionality not inlined into syscall +entry/exit, this makes that information available. seccomp_filter is +the first planned consumer and, as such, the comment indicates a tie to +CONFIG_HAVE_ARCH_SECCOMP_FILTER. + +Suggested-by: Roland McGrath <mcgrathr@chromium.org> +Signed-off-by: Will Drewry <wad@chromium.org> +Acked-by: Serge Hallyn <serge.hallyn@canonical.com> +Acked-by: Eric Paris <eparis@redhat.com> + +v18: comment and change reword and rebase. +v14: rebase/nochanges +v13: rebase on to 88ebdda6159ffc15699f204c33feb3e431bf9bdc +v12: rebase on to linux-next +v11: fixed improper return type +v10: introduced +Signed-off-by: James Morris <james.l.morris@oracle.com> +Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> +--- + include/asm-generic/syscall.h | 14 ++++++++++++++ + 1 files changed, 14 insertions(+), 0 deletions(-) + +diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h +index 5c122ae..5b09392 100644 +--- a/include/asm-generic/syscall.h ++++ b/include/asm-generic/syscall.h +@@ -142,4 +142,18 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, + unsigned int i, unsigned int n, + const unsigned long *args); + ++/** ++ * syscall_get_arch - return the AUDIT_ARCH for the current system call ++ * @task: task of interest, must be in system call entry tracing ++ * @regs: task_pt_regs() of @task ++ * ++ * Returns the AUDIT_ARCH_* based on the system call convention in use. ++ * ++ * It's only valid to call this when @task is stopped on entry to a system ++ * call, due to %TIF_SYSCALL_TRACE, %TIF_SYSCALL_AUDIT, or %TIF_SECCOMP. ++ * ++ * Architectures which permit CONFIG_HAVE_ARCH_SECCOMP_FILTER must ++ * provide an implementation of this. ++ */ ++int syscall_get_arch(struct task_struct *task, struct pt_regs *regs); + #endif /* _ASM_SYSCALL_H */ +-- +1.7.9.1 + |