diff options
Diffstat (limited to 'src/shared/bpf-program.h')
-rw-r--r-- | src/shared/bpf-program.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/shared/bpf-program.h b/src/shared/bpf-program.h new file mode 100644 index 0000000..eef77f9 --- /dev/null +++ b/src/shared/bpf-program.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <linux/bpf.h> +#include <stdint.h> +#include <sys/syscall.h> + +#include "list.h" +#include "macro.h" + +typedef struct BPFProgram BPFProgram; + +struct BPFProgram { + unsigned n_ref; + + int kernel_fd; + uint32_t prog_type; + + size_t n_instructions; + size_t allocated; + struct bpf_insn *instructions; + + char *attached_path; + int attached_type; + uint32_t attached_flags; +}; + +int bpf_program_new(uint32_t prog_type, BPFProgram **ret); +BPFProgram *bpf_program_unref(BPFProgram *p); +BPFProgram *bpf_program_ref(BPFProgram *p); + +int bpf_program_add_instructions(BPFProgram *p, const struct bpf_insn *insn, size_t count); +int bpf_program_load_kernel(BPFProgram *p, char *log_buf, size_t log_size); +int bpf_program_load_from_bpf_fs(BPFProgram *p, const char *path); + +int bpf_program_cgroup_attach(BPFProgram *p, int type, const char *path, uint32_t flags); +int bpf_program_cgroup_detach(BPFProgram *p); + +int bpf_map_new(enum bpf_map_type type, size_t key_size, size_t value_size, size_t max_entries, uint32_t flags); +int bpf_map_update_element(int fd, const void *key, void *value); +int bpf_map_lookup_element(int fd, const void *key, void *value); + +DEFINE_TRIVIAL_CLEANUP_FUNC(BPFProgram*, bpf_program_unref); |