// Copyright 2024 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.

#include "include/uapi/file_operations.h"
#include "include/fs.h"
#include "include/uapi/unused_ioctl.h"

enum {
	FOO_IOCTL12 = _IOR('c', 12, int),
};

enum {
	config_foo
};

static void foo_open()
{
}
static void foo_read()
{
}
static void foo_write()
{
}
static void foo_mmap()
{
}
static void foo_mmap2()
{
}

static void foo_ioctl2(unsigned int cmd, unsigned long arg)
{
	switch (cmd) {
	case FOO_IOCTL6:
	case FOO_IOCTL7:
	default:
	}
}

static void foo_ioctl(void* file, unsigned int cmd, unsigned long arg)
{
	switch (cmd) {
	case FOO_IOCTL1:
	case FOO_IOCTL2:
	case FOO_IOCTL3:
	case FOO_IOCTL4:
	case FOO_IOCTL5:
	case FOO_IOCTL10:
	case FOO_IOCTL11:
	case FOO_IOCTL12:
	}
	foo_ioctl2(cmd, arg);
}

const struct file_operations foo = {
    .open = foo_open,
    .read = foo_read,
    .write = foo_write,
    .unlocked_ioctl = foo_ioctl,
    // Such code happens after macro expansion,
    // we want to extract the first function name.
    .mmap = ((config_foo) ? foo_mmap : foo_mmap2),
};

static void proc_open()
{
}
static void proc_read()
{
}
static void proc_write()
{
}
static void proc_ioctl(void* file, unsigned int cmd, unsigned long arg)
{
}

const struct file_operations proc_ops[] = {
    {
	.open = proc_open,
	.read_iter = proc_read,
	.write_iter = proc_write,
    },
    {
	.open = proc_open,
	.unlocked_ioctl = proc_ioctl,
    },
};

#define UNUSED_IOCTL2 _IO('c', 2)

static void unused_ioctl(void* file, unsigned int cmd, unsigned long arg)
{
	switch (cmd) {
	case UNUSED_IOCTL1:
	case UNUSED_IOCTL2:
	}
}

const struct file_operations unused = {
    .unlocked_ioctl = unused_ioctl,
};