On Tue, Oct 4, 2022 at 6:18 AM Roberto Sassu <roberto.sassu@xxxxxxxxxxxxxxx> wrote: > > From: Roberto Sassu <roberto.sassu@xxxxxxxxxx> > > NOTE: resending with libbpf_get_fd_opts test added to deny list for s390x. it's not a resend if you change something in patches, it's a new version, please mark it appropriately with v2 instead of [RESEND] > > Add the _opts variant for bpf_*_get_fd_by_id() functions, to be able to > pass to the kernel more options, when requesting a fd of an eBPF object to > the kernel. > > Pass the options through a newly introduced structure, bpf_get_fd_opts, > which currently contains open_flags (the other two members are for > compatibility and for padding). > > open_flags allows the caller to request specific permissions to access a > map (e.g. read-only). This is useful for example in the situation where a > map is write-protected. > > Besides patches 2-6, which introduce the new variants and the data > structure, patch 1 fixes the LIBBPF_1.0.0 declaration in libbpf.map. > > Roberto Sassu (6): > libbpf: Fix LIBBPF_1.0.0 declaration in libbpf.map > libbpf: Define bpf_get_fd_opts and introduce > bpf_map_get_fd_by_id_opts() > libbpf: Introduce bpf_prog_get_fd_by_id_opts() > libbpf: Introduce bpf_btf_get_fd_by_id_opts() > libbpf: Introduce bpf_link_get_fd_by_id_opts() > selftests/bpf: Add tests for _opts variants of bpf_*_get_fd_by_id() > > tools/lib/bpf/bpf.c | 47 +++++++++- > tools/lib/bpf/bpf.h | 16 ++++ > tools/lib/bpf/libbpf.map | 6 +- > tools/testing/selftests/bpf/DENYLIST.s390x | 1 + > .../bpf/prog_tests/libbpf_get_fd_opts.c | 88 +++++++++++++++++++ > .../bpf/progs/test_libbpf_get_fd_opts.c | 36 ++++++++ > 6 files changed, 189 insertions(+), 5 deletions(-) > create mode 100644 tools/testing/selftests/bpf/prog_tests/libbpf_get_fd_opts.c > create mode 100644 tools/testing/selftests/bpf/progs/test_libbpf_get_fd_opts.c > > -- > 2.25.1 >
