Blame view
samples/bpf/bpf_load.h
1.64 KB
b24413180
|
1 |
/* SPDX-License-Identifier: GPL-2.0 */ |
249b812d8
|
2 3 |
#ifndef __BPF_LOAD_H #define __BPF_LOAD_H |
d40fc181e
|
4 |
#include "libbpf.h" |
249b812d8
|
5 6 |
#define MAX_MAPS 32 #define MAX_PROGS 32 |
9fd63d05f
|
7 8 9 10 11 12 13 |
struct bpf_map_def { unsigned int type; unsigned int key_size; unsigned int value_size; unsigned int max_entries; unsigned int map_flags; unsigned int inner_map_idx; |
ad17d0e6c
|
14 |
unsigned int numa_node; |
9fd63d05f
|
15 |
}; |
6979bcc73
|
16 17 18 19 20 21 22 23 |
struct bpf_map_data { int fd; char *name; size_t elf_offset; struct bpf_map_def def; }; typedef void (*fixup_map_cb)(struct bpf_map_data *map, int idx); |
9fd63d05f
|
24 |
|
249b812d8
|
25 |
extern int prog_fd[MAX_PROGS]; |
b896c4f95
|
26 |
extern int event_fd[MAX_PROGS]; |
d40fc181e
|
27 |
extern char bpf_log_buf[BPF_LOG_BUF_SIZE]; |
4f2e7ae56
|
28 |
extern int prog_cnt; |
249b812d8
|
29 |
|
9178b4c17
|
30 31 32 33 34 35 |
/* There is a one-to-one mapping between map_fd[] and map_data[]. * The map_data[] just contains more rich info on the given map. */ extern int map_fd[MAX_MAPS]; extern struct bpf_map_data map_data[MAX_MAPS]; extern int map_data_count; |
249b812d8
|
36 37 38 39 40 41 42 43 44 45 46 47 48 |
/* parses elf file compiled by llvm .c->.o * . parses 'maps' section and creates maps via BPF syscall * . parses 'license' section and passes it to syscall * . parses elf relocations for BPF maps and adjusts BPF_LD_IMM64 insns by * storing map_fd into insn->imm and marking such insns as BPF_PSEUDO_MAP_FD * . loads eBPF programs via BPF syscall * * One ELF file can contain multiple BPF programs which will be loaded * and their FDs stored stored in prog_fd array * * returns zero on success */ int load_bpf_file(char *path); |
9fd63d05f
|
49 |
int load_bpf_file_fixup_map(const char *path, fixup_map_cb fixup_map); |
249b812d8
|
50 |
|
b896c4f95
|
51 |
void read_trace_pipe(void); |
3622e7e49
|
52 53 54 55 |
struct ksym { long addr; char *name; }; |
b896c4f95
|
56 |
|
3622e7e49
|
57 58 |
int load_kallsyms(void); struct ksym *ksym_search(long key); |
6387d0111
|
59 |
int set_link_xdp_fd(int ifindex, int fd, __u32 flags); |
249b812d8
|
60 |
#endif |