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| author | Andrii Nakryiko | 2020-12-18 15:56:12 -0800 |
|---|---|---|
| committer | Alexei Starovoitov | 2021-01-08 13:39:24 -0800 |
| commit | 792001f4f7aa036b1f1c1ed7bce44bb49126208a (patch) | |
| tree | 95d6e3385c55e51fba29224e53d2c4f6cefbc3ab /drivers/extcon | |
| parent | 833d22f2f922bbee6430e558417af060db6bbe9c (diff) | |
libbpf: Add user-space variants of BPF_CORE_READ() family of macros
Add BPF_CORE_READ_USER(), BPF_CORE_READ_USER_STR() and their _INTO()
variations to allow reading CO-RE-relocatable kernel data structures from the
user-space. One of such cases is reading input arguments of syscalls, while
reaping the benefits of CO-RE relocations w.r.t. handling 32/64 bit
conversions and handling missing/new fields in UAPI data structs.
Suggested-by: Gilad Reti <gilad.reti@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20201218235614.2284956-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/extcon')
0 files changed, 0 insertions, 0 deletions