forked from luck/tmp_suning_uos_patched
abe0884011
We use print_bpf_insn in user space (bpftool and soon perf), so it'd be nice to keep it generic and strip it off the kernel struct bpf_verifier_env argument. This argument can be safely removed, because its users can use the struct bpf_insn_cbs::private_data to pass it. By changing the argument type we can no longer have clean 'verbose' alias to 'bpf_verifier_log_write' in verifier.c. Instead we're adding the 'verbose' cb_print callback and removing the alias. This way we have new cb_print callback in place, and all the 'verbose(env, ...) calls in verifier.c will cleanly cast to 'verbose(void *, ...)' so no other change is needed. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
|
|
* Copyright (c) 2016 Facebook
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of version 2 of the GNU General Public
|
|
* License as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*/
|
|
|
|
#ifndef __BPF_DISASM_H__
|
|
#define __BPF_DISASM_H__
|
|
|
|
#include <linux/bpf.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/stringify.h>
|
|
#ifndef __KERNEL__
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#endif
|
|
|
|
extern const char *const bpf_alu_string[16];
|
|
extern const char *const bpf_class_string[8];
|
|
|
|
const char *func_id_name(int id);
|
|
|
|
typedef __printf(2, 3) void (*bpf_insn_print_t)(void *private_data,
|
|
const char *, ...);
|
|
typedef const char *(*bpf_insn_revmap_call_t)(void *private_data,
|
|
const struct bpf_insn *insn);
|
|
typedef const char *(*bpf_insn_print_imm_t)(void *private_data,
|
|
const struct bpf_insn *insn,
|
|
__u64 full_imm);
|
|
|
|
struct bpf_insn_cbs {
|
|
bpf_insn_print_t cb_print;
|
|
bpf_insn_revmap_call_t cb_call;
|
|
bpf_insn_print_imm_t cb_imm;
|
|
void *private_data;
|
|
};
|
|
|
|
void print_bpf_insn(const struct bpf_insn_cbs *cbs,
|
|
const struct bpf_insn *insn,
|
|
bool allow_ptr_leaks);
|
|
#endif
|