1 /* SPDX-License-Identifier: GPL-2.0 */
10 struct bpf_load_map_def
{
12 unsigned int key_size
;
13 unsigned int value_size
;
14 unsigned int max_entries
;
15 unsigned int map_flags
;
16 unsigned int inner_map_idx
;
17 unsigned int numa_node
;
24 struct bpf_load_map_def def
;
27 typedef void (*fixup_map_cb
)(struct bpf_map_data
*map
, int idx
);
29 extern int prog_fd
[MAX_PROGS
];
30 extern int event_fd
[MAX_PROGS
];
31 extern char bpf_log_buf
[BPF_LOG_BUF_SIZE
];
34 /* There is a one-to-one mapping between map_fd[] and map_data[].
35 * The map_data[] just contains more rich info on the given map.
37 extern int map_fd
[MAX_MAPS
];
38 extern struct bpf_map_data map_data
[MAX_MAPS
];
39 extern int map_data_count
;
41 /* parses elf file compiled by llvm .c->.o
42 * . parses 'maps' section and creates maps via BPF syscall
43 * . parses 'license' section and passes it to syscall
44 * . parses elf relocations for BPF maps and adjusts BPF_LD_IMM64 insns by
45 * storing map_fd into insn->imm and marking such insns as BPF_PSEUDO_MAP_FD
46 * . loads eBPF programs via BPF syscall
48 * One ELF file can contain multiple BPF programs which will be loaded
49 * and their FDs stored stored in prog_fd array
51 * returns zero on success
53 int load_bpf_file(char *path
);
54 int load_bpf_file_fixup_map(const char *path
, fixup_map_cb fixup_map
);
56 void read_trace_pipe(void);
57 int bpf_set_link_xdp_fd(int ifindex
, int fd
, __u32 flags
);