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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2020 Facebook */
#ifndef _BPF_TESTMOD_H
#define _BPF_TESTMOD_H
#include <linux/types.h>
struct task_struct;
struct cgroup;
struct bpf_testmod_test_read_ctx {
char *buf;
loff_t off;
size_t len;
};
struct bpf_testmod_test_write_ctx {
char *buf;
loff_t off;
size_t len;
};
struct bpf_testmod_test_writable_ctx {
bool early_ret;
int val;
};
/* BPF iter that returns *value* *n* times in a row */
struct bpf_iter_testmod_seq {
s64 value;
int cnt;
};
struct bpf_testmod_ops {
int (*test_1)(void);
void (*test_2)(int a, int b);
/* Used to test nullable arguments. */
int (*test_maybe_null)(int dummy, struct task_struct *task);
int (*unsupported_ops)(void);
/* Used to test ref_acquired arguments. */
int (*test_refcounted)(int dummy, struct task_struct *task);
/* Used to test checking of __ref arguments when it not the first argument. */
int (*test_refcounted_multi)(int dummy, struct task_struct *task,
struct task_struct *task2);
/* Used to test returning referenced kptr. */
struct task_struct *(*test_return_ref_kptr)(int dummy, struct task_struct *task,
struct cgroup *cgrp);
/* Used to test indirect struct_ops trampoline with stack-passed arguments. */
int (*test_trampoline_stack_args)(int arg1, int arg2, int arg3,
int arg4, int arg5, int arg6,
int arg7, int arg8, int arg9);
/* The following fields are used to test shadow copies. */
char onebyte;
struct {
int a;
int b;
} unsupported;
int data;
/* The following pointers are used to test the maps having multiple
* pages of trampolines.
*/
int (*tramp_1)(int value);
int (*tramp_2)(int value);
int (*tramp_3)(int value);
int (*tramp_4)(int value);
int (*tramp_5)(int value);
int (*tramp_6)(int value);
int (*tramp_7)(int value);
int (*tramp_8)(int value);
int (*tramp_9)(int value);
int (*tramp_10)(int value);
int (*tramp_11)(int value);
int (*tramp_12)(int value);
int (*tramp_13)(int value);
int (*tramp_14)(int value);
int (*tramp_15)(int value);
int (*tramp_16)(int value);
int (*tramp_17)(int value);
int (*tramp_18)(int value);
int (*tramp_19)(int value);
int (*tramp_20)(int value);
int (*tramp_21)(int value);
int (*tramp_22)(int value);
int (*tramp_23)(int value);
int (*tramp_24)(int value);
int (*tramp_25)(int value);
int (*tramp_26)(int value);
int (*tramp_27)(int value);
int (*tramp_28)(int value);
int (*tramp_29)(int value);
int (*tramp_30)(int value);
int (*tramp_31)(int value);
int (*tramp_32)(int value);
int (*tramp_33)(int value);
int (*tramp_34)(int value);
int (*tramp_35)(int value);
int (*tramp_36)(int value);
int (*tramp_37)(int value);
int (*tramp_38)(int value);
int (*tramp_39)(int value);
int (*tramp_40)(int value);
};
struct bpf_testmod_ops2 {
int (*test_1)(void);
};
/* 16 bytes, so it takes two argument slots when passed by value */
struct bpf_testmod_arena_pair {
u64 a;
u64 b;
};
struct bpf_testmod_ops3 {
int (*test_1)(void);
int (*test_2)(void);
/* Used to test arena pointer arguments. */
int (*test_arena)(u64 *ptr);
int (*test_arena_nullable)(u64 *ptr);
/* enough leading args to force @ptr onto the stack on x86 and arm64 */
int (*test_arena_stack)(u64 a, u64 b, u64 c, u64 d, u64 e, u64 f,
u64 g, u64 h, u64 *ptr);
/* a multi-slot leading arg, so @ptr is not at the slot its arg index suggests */
int (*test_arena_multislot)(struct bpf_testmod_arena_pair p, u64 *ptr);
};
struct st_ops_args {
u64 a;
};
struct bpf_testmod_st_ops {
int (*test_prologue)(struct st_ops_args *args);
int (*test_epilogue)(struct st_ops_args *args);
int (*test_pro_epilogue)(struct st_ops_args *args);
struct module *owner;
};
struct bpf_testmod_multi_st_ops {
int (*test_1)(struct st_ops_args *args);
struct hlist_node node;
int id;
};
#endif /* _BPF_TESTMOD_H */
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