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libbpf: Add bpf_obj_get_opts()

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Add an extensible variant of bpf_obj_get() capable of setting the
`file_flags` parameter.

This parameter is needed to enable unprivileged access to BPF maps.
Without a method like this, users must manually make the syscall.

Signed-off-by: Joe Burton <jevburton@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220729202727.3311806-1-jevburton.kernel@gmail.com
This commit is contained in:
Joe Burton
2022-07-29 20:27:27 +00:00
committed by Andrii Nakryiko
parent b2d7228d7c
commit d8e2c9d965
3 changed files with 21 additions and 0 deletions
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src/libbpf.map
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@@ -355,6 +355,7 @@ LIBBPF_0.8.0 {
LIBBPF_1.0.0 {
global:
bpf_obj_get_opts;
bpf_prog_query_opts;
bpf_program__attach_ksyscall;
btf__add_enum64;