Line data    Source code

       1             : /* SPDX-License-Identifier: LGPL-2.1+ */
       2             : #pragma once
       3             : 
       4             : #include <linux/bpf.h>
       5             : #include <stdint.h>
       6             : #include <sys/syscall.h>
       7             : 
       8             : #include "list.h"
       9             : #include "macro.h"
      10             : 
      11             : typedef struct BPFProgram BPFProgram;
      12             : 
      13             : struct BPFProgram {
      14             :         unsigned n_ref;
      15             : 
      16             :         int kernel_fd;
      17             :         uint32_t prog_type;
      18             : 
      19             :         size_t n_instructions;
      20             :         size_t allocated;
      21             :         struct bpf_insn *instructions;
      22             : 
      23             :         char *attached_path;
      24             :         int attached_type;
      25             :         uint32_t attached_flags;
      26             : };
      27             : 
      28             : int bpf_program_new(uint32_t prog_type, BPFProgram **ret);
      29             : BPFProgram *bpf_program_unref(BPFProgram *p);
      30             : BPFProgram *bpf_program_ref(BPFProgram *p);
      31             : 
      32             : int bpf_program_add_instructions(BPFProgram *p, const struct bpf_insn *insn, size_t count);
      33             : int bpf_program_load_kernel(BPFProgram *p, char *log_buf, size_t log_size);
      34             : int bpf_program_load_from_bpf_fs(BPFProgram *p, const char *path);
      35             : 
      36             : int bpf_program_cgroup_attach(BPFProgram *p, int type, const char *path, uint32_t flags);
      37             : int bpf_program_cgroup_detach(BPFProgram *p);
      38             : 
      39             : int bpf_map_new(enum bpf_map_type type, size_t key_size, size_t value_size, size_t max_entries, uint32_t flags);
      40             : int bpf_map_update_element(int fd, const void *key, void *value);
      41             : int bpf_map_lookup_element(int fd, const void *key, void *value);
      42             : 
      43          28 : DEFINE_TRIVIAL_CLEANUP_FUNC(BPFProgram*, bpf_program_unref);