| /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ |
| |
| /* |
| * Libbpf legacy APIs (either discouraged or deprecated, as mentioned in [0]) |
| * |
| * [0] https://docs.google.com/document/d/1UyjTZuPFWiPFyKk1tV5an11_iaRuec6U-ZESZ54nNTY |
| * |
| * Copyright (C) 2021 Facebook |
| */ |
| #ifndef __LIBBPF_LEGACY_BPF_H |
| #define __LIBBPF_LEGACY_BPF_H |
| |
| #include <linux/bpf.h> |
| #include <stdbool.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| #include "libbpf_common.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| enum libbpf_strict_mode { |
| /* Turn on all supported strict features of libbpf to simulate libbpf |
| * v1.0 behavior. |
| * This will be the default behavior in libbpf v1.0. |
| */ |
| LIBBPF_STRICT_ALL = 0xffffffff, |
| |
| /* |
| * Disable any libbpf 1.0 behaviors. This is the default before libbpf |
| * v1.0. It won't be supported anymore in v1.0, please update your |
| * code so that it handles LIBBPF_STRICT_ALL mode before libbpf v1.0. |
| */ |
| LIBBPF_STRICT_NONE = 0x00, |
| /* |
| * Return NULL pointers on error, not ERR_PTR(err). |
| * Additionally, libbpf also always sets errno to corresponding Exx |
| * (positive) error code. |
| */ |
| LIBBPF_STRICT_CLEAN_PTRS = 0x01, |
| /* |
| * Return actual error codes from low-level APIs directly, not just -1. |
| * Additionally, libbpf also always sets errno to corresponding Exx |
| * (positive) error code. |
| */ |
| LIBBPF_STRICT_DIRECT_ERRS = 0x02, |
| |
| /* |
| * Enforce strict BPF program section (SEC()) names. |
| * E.g., while prefiously SEC("xdp_whatever") or SEC("perf_event_blah") were |
| * allowed, with LIBBPF_STRICT_SEC_PREFIX this will become |
| * unrecognized by libbpf and would have to be just SEC("xdp") and |
| * SEC("xdp") and SEC("perf_event"). |
| * |
| * Note, in this mode the program pin path will be based on the |
| * function name instead of section name. |
| */ |
| LIBBPF_STRICT_SEC_NAME = 0x04, |
| /* |
| * Disable the global 'bpf_objects_list'. Maintaining this list adds |
| * a race condition to bpf_object__open() and bpf_object__close(). |
| * Clients can maintain it on their own if it is valuable for them. |
| */ |
| LIBBPF_STRICT_NO_OBJECT_LIST = 0x08, |
| |
| __LIBBPF_STRICT_LAST, |
| }; |
| |
| LIBBPF_API int libbpf_set_strict_mode(enum libbpf_strict_mode mode); |
| |
| #define DECLARE_LIBBPF_OPTS LIBBPF_OPTS |
| |
| #ifdef __cplusplus |
| } /* extern "C" */ |
| #endif |
| |
| #endif /* __LIBBPF_LEGACY_BPF_H */ |