selftests/seccomp: Allow syscall nr and ret value to be set separately

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In preparation for setting syscall nr and ret values separately, refactor
the helpers to take a pointer to a value, so that a NULL can indicate
"do not change this respective value". This is done to keep the regset
read/write happening once and in one code path.

Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/lkml/20200921075031.j4gruygeugkp2zwd@wittgenstein/
Signed-off-by: Kees Cook <keescook@chromium.org>

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This commit is contained in:

Kees Cook 2020-09-19 00:21:34 -07:00

parent 71c87fbe72

commit bef71f86b6

1 changed files with 47 additions and 12 deletions

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tools/testing/selftests/seccomp/seccomp_bpf.c

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