xref: /openbmc/linux/kernel/bpf/disasm.h (revision 60772e48)
1 /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
2  * Copyright (c) 2016 Facebook
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of version 2 of the GNU General Public
6  * License as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful, but
9  * WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11  * General Public License for more details.
12  */
13 
14 #ifndef __BPF_DISASM_H__
15 #define __BPF_DISASM_H__
16 
17 #include <linux/bpf.h>
18 #include <linux/kernel.h>
19 #include <linux/stringify.h>
20 #ifndef __KERNEL__
21 #include <stdio.h>
22 #include <string.h>
23 #endif
24 
25 struct bpf_verifier_env;
26 
27 extern const char *const bpf_alu_string[16];
28 extern const char *const bpf_class_string[8];
29 
30 const char *func_id_name(int id);
31 
32 typedef __printf(2, 3) void (*bpf_insn_print_t)(struct bpf_verifier_env *env,
33 						const char *, ...);
34 typedef const char *(*bpf_insn_revmap_call_t)(void *private_data,
35 					      const struct bpf_insn *insn);
36 typedef const char *(*bpf_insn_print_imm_t)(void *private_data,
37 					    const struct bpf_insn *insn,
38 					    __u64 full_imm);
39 
40 struct bpf_insn_cbs {
41 	bpf_insn_print_t	cb_print;
42 	bpf_insn_revmap_call_t	cb_call;
43 	bpf_insn_print_imm_t	cb_imm;
44 	void			*private_data;
45 };
46 
47 void print_bpf_insn(const struct bpf_insn_cbs *cbs,
48 		    struct bpf_verifier_env *env,
49 		    const struct bpf_insn *insn,
50 		    bool allow_ptr_leaks);
51 #endif
52