diff options
Diffstat (limited to 'kernel/samples/bpf/bpf_load.h')
-rw-r--r-- | kernel/samples/bpf/bpf_load.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/kernel/samples/bpf/bpf_load.h b/kernel/samples/bpf/bpf_load.h new file mode 100644 index 000000000..cbd7c2b53 --- /dev/null +++ b/kernel/samples/bpf/bpf_load.h @@ -0,0 +1,27 @@ +#ifndef __BPF_LOAD_H +#define __BPF_LOAD_H + +#define MAX_MAPS 32 +#define MAX_PROGS 32 + +extern int map_fd[MAX_MAPS]; +extern int prog_fd[MAX_PROGS]; +extern int event_fd[MAX_PROGS]; + +/* 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); + +void read_trace_pipe(void); + +#endif |