kernel.git/tools/lib/bpf/libbpf.map, branch linux-6.5.y

libbpf: Add opts-based bpf_obj_pin() API and add support for path_fd

2023-05-23T21:41:01Z

Add path_fd support for bpf_obj_pin() and bpf_obj_get() operations (through their opts-based variants). This allows to take advantage of new kernel-side support for O_PATH-based pin/get location specification. Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20230523170013.728457-4-andrii@kernel.org

libbpf: Start v1.3 development cycle

2023-05-23T19:39:12Z

Bump libbpf.map to v1.3.0 to start a new libbpf version cycle. Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20230523170013.728457-3-andrii@kernel.org

libbpf: Update a bpf_link with another struct_ops.

2023-03-23T05:53:02Z

Introduce bpf_link__update_map(), which allows to atomically update underlying struct_ops implementation for given struct_ops BPF link. Also add old_map_fd to struct bpf_link_update_opts to handle BPF_F_REPLACE feature. Signed-off-by: Kui-Feng Lee Link: https://lore.kernel.org/r/20230323032405.3735486-7-kuifeng@meta.com Signed-off-by: Martin KaFai Lau

libbpf: Introduce bpf_{btf,link,map,prog}_get_info_by_fd()

2023-02-16T23:32:36Z

These are type-safe wrappers around bpf_obj_get_info_by_fd(). They found one problem in selftests, and are also useful for adding Memory Sanitizer annotations. Signed-off-by: Ilya Leoshkevich Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20230214231221.249277-2-iii@linux.ibm.com

libbpf: start v1.2 development cycle

2022-12-21T19:18:50Z

Bump current version for new development cycle to v1.2. Signed-off-by: Andrii Nakryiko Acked-by: Stanislav Fomichev Link: https://lore.kernel.org/r/20221221180049.853365-1-andrii@kernel.org Signed-off-by: Martin KaFai Lau

libbpf: Introduce bpf_link_get_fd_by_id_opts()

2022-10-10T23:49:20Z

Introduce bpf_link_get_fd_by_id_opts(), for symmetry with bpf_map_get_fd_by_id_opts(), to let the caller pass the newly introduced data structure bpf_get_fd_by_id_opts. Keep the existing bpf_link_get_fd_by_id(), and call bpf_link_get_fd_by_id_opts() with NULL as opts argument, to prevent setting open_flags. Currently, the kernel does not support non-zero open_flags for bpf_link_get_fd_by_id_opts(), and a call with them will result in an error returned by the bpf() system call. The caller should always pass zero open_flags. Signed-off-by: Roberto Sassu Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20221006110736.84253-6-roberto.sassu@huaweicloud.com

libbpf: Introduce bpf_btf_get_fd_by_id_opts()

2022-10-10T23:49:20Z

Introduce bpf_btf_get_fd_by_id_opts(), for symmetry with bpf_map_get_fd_by_id_opts(), to let the caller pass the newly introduced data structure bpf_get_fd_by_id_opts. Keep the existing bpf_btf_get_fd_by_id(), and call bpf_btf_get_fd_by_id_opts() with NULL as opts argument, to prevent setting open_flags. Currently, the kernel does not support non-zero open_flags for bpf_btf_get_fd_by_id_opts(), and a call with them will result in an error returned by the bpf() system call. The caller should always pass zero open_flags. Signed-off-by: Roberto Sassu Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20221006110736.84253-5-roberto.sassu@huaweicloud.com

libbpf: Introduce bpf_prog_get_fd_by_id_opts()

2022-10-10T23:49:20Z

Introduce bpf_prog_get_fd_by_id_opts(), for symmetry with bpf_map_get_fd_by_id_opts(), to let the caller pass the newly introduced data structure bpf_get_fd_by_id_opts. Keep the existing bpf_prog_get_fd_by_id(), and call bpf_prog_get_fd_by_id_opts() with NULL as opts argument, to prevent setting open_flags. Currently, the kernel does not support non-zero open_flags for bpf_prog_get_fd_by_id_opts(), and a call with them will result in an error returned by the bpf() system call. The caller should always pass zero open_flags. Signed-off-by: Roberto Sassu Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20221006110736.84253-4-roberto.sassu@huaweicloud.com

libbpf: Introduce bpf_get_fd_by_id_opts and bpf_map_get_fd_by_id_opts()

2022-10-10T23:49:20Z

Define a new data structure called bpf_get_fd_by_id_opts, with the member open_flags, to be used by callers of the _opts variants of bpf_*_get_fd_by_id() to specify the permissions needed for the file descriptor to be obtained. Also, introduce bpf_map_get_fd_by_id_opts(), to let the caller pass a bpf_get_fd_by_id_opts structure. Finally, keep the existing bpf_map_get_fd_by_id(), and call bpf_map_get_fd_by_id_opts() with NULL as opts argument, to request read-write permissions (current behavior). Signed-off-by: Roberto Sassu Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20221006110736.84253-3-roberto.sassu@huaweicloud.com

libbpf: Fix LIBBPF_1.0.0 declaration in libbpf.map

2022-10-10T23:49:20Z

Add the missing LIBBPF_0.8.0 at the end of the LIBBPF_1.0.0 declaration, similarly to other version declarations. Signed-off-by: Roberto Sassu Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20221006110736.84253-2-roberto.sassu@huaweicloud.com