bpf_testmod.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2/* Copyright (c) 2020 Facebook */
  3#ifndef _BPF_TESTMOD_H
  4#define _BPF_TESTMOD_H
  5
  6#include <linux/types.h>
  7
  8struct task_struct;
  9struct cgroup;
 10
 11struct bpf_testmod_test_read_ctx {
 12	char *buf;
 13	loff_t off;
 14	size_t len;
 15};
 16
 17struct bpf_testmod_test_write_ctx {
 18	char *buf;
 19	loff_t off;
 20	size_t len;
 21};
 22
 23struct bpf_testmod_test_writable_ctx {
 24	bool early_ret;
 25	int val;
 26};
 27
 28/* BPF iter that returns *value* *n* times in a row */
 29struct bpf_iter_testmod_seq {
 30	s64 value;
 31	int cnt;
 32};
 33
 34struct bpf_testmod_ops {
 35	int (*test_1)(void);
 36	void (*test_2)(int a, int b);
 37	/* Used to test nullable arguments. */
 38	int (*test_maybe_null)(int dummy, struct task_struct *task);
 39	int (*unsupported_ops)(void);
 40	/* Used to test ref_acquired arguments. */
 41	int (*test_refcounted)(int dummy, struct task_struct *task);
 42	/* Used to test returning referenced kptr. */
 43	struct task_struct *(*test_return_ref_kptr)(int dummy, struct task_struct *task,
 44						    struct cgroup *cgrp);
 45
 46	/* The following fields are used to test shadow copies. */
 47	char onebyte;
 48	struct {
 49		int a;
 50		int b;
 51	} unsupported;
 52	int data;
 53
 54	/* The following pointers are used to test the maps having multiple
 55	 * pages of trampolines.
 56	 */
 57	int (*tramp_1)(int value);
 58	int (*tramp_2)(int value);
 59	int (*tramp_3)(int value);
 60	int (*tramp_4)(int value);
 61	int (*tramp_5)(int value);
 62	int (*tramp_6)(int value);
 63	int (*tramp_7)(int value);
 64	int (*tramp_8)(int value);
 65	int (*tramp_9)(int value);
 66	int (*tramp_10)(int value);
 67	int (*tramp_11)(int value);
 68	int (*tramp_12)(int value);
 69	int (*tramp_13)(int value);
 70	int (*tramp_14)(int value);
 71	int (*tramp_15)(int value);
 72	int (*tramp_16)(int value);
 73	int (*tramp_17)(int value);
 74	int (*tramp_18)(int value);
 75	int (*tramp_19)(int value);
 76	int (*tramp_20)(int value);
 77	int (*tramp_21)(int value);
 78	int (*tramp_22)(int value);
 79	int (*tramp_23)(int value);
 80	int (*tramp_24)(int value);
 81	int (*tramp_25)(int value);
 82	int (*tramp_26)(int value);
 83	int (*tramp_27)(int value);
 84	int (*tramp_28)(int value);
 85	int (*tramp_29)(int value);
 86	int (*tramp_30)(int value);
 87	int (*tramp_31)(int value);
 88	int (*tramp_32)(int value);
 89	int (*tramp_33)(int value);
 90	int (*tramp_34)(int value);
 91	int (*tramp_35)(int value);
 92	int (*tramp_36)(int value);
 93	int (*tramp_37)(int value);
 94	int (*tramp_38)(int value);
 95	int (*tramp_39)(int value);
 96	int (*tramp_40)(int value);
 97};
 98
 99struct bpf_testmod_ops2 {
100	int (*test_1)(void);
101};
102
103struct bpf_testmod_ops3 {
104	int (*test_1)(void);
105	int (*test_2)(void);
106};
107
108struct st_ops_args {
109	u64 a;
110};
111
112struct bpf_testmod_st_ops {
113	int (*test_prologue)(struct st_ops_args *args);
114	int (*test_epilogue)(struct st_ops_args *args);
115	int (*test_pro_epilogue)(struct st_ops_args *args);
116	struct module *owner;
117};
118
119struct bpf_testmod_multi_st_ops {
120	int (*test_1)(struct st_ops_args *args);
121	struct hlist_node node;
122	int id;
123};
124
125#endif /* _BPF_TESTMOD_H */