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/*
* This file is part of the flashrom project.
*
* Copyright (c) 2021 Nico Huber <nico.h@gmx.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _IO_MOCK_H_
#define _IO_MOCK_H_
/* Required for `FILE *` */
#include <stdio.h>
/*
* Explicitly including the header because some tests are using libusb structs
* in depth, opaque symbols are not sufficient.
*/
#include <libusb.h>
/* Address value needs fit into uint8_t. */
#define USB_DEVICE_ADDRESS 19
/* Define struct pci_dev to avoid dependency on pci.h */
struct pci_dev {
char padding[18];
unsigned int device_id;
};
/* POSIX open() flags, avoiding dependency on fcntl.h */
#define O_RDONLY 0
#define O_WRONLY 1
#define O_RDWR 2
/* Linux I2C interface constants, avoiding linux/i2c-dev.h */
#define I2C_SLAVE 0x0703
/* Always return success for tests. */
#define S_ISREG(x) 0
/* Maximum number of open calls to mock. This number is arbitrary. */
#define MAX_MOCK_OPEN 4
struct io_mock_fallback_open_state {
unsigned int noc;
const char *paths[MAX_MOCK_OPEN];
int flags[MAX_MOCK_OPEN];
};
struct io_mock {
void *state;
/* Port I/O */
void (*outb)(void *state, unsigned char value, unsigned short port);
unsigned char (*inb)(void *state, unsigned short port);
void (*outw)(void *state, unsigned short value, unsigned short port);
unsigned short (*inw)(void *state, unsigned short port);
void (*outl)(void *state, unsigned int value, unsigned short port);
unsigned int (*inl)(void *state, unsigned short port);
/* USB I/O */
int (*libusb_init)(void *state, libusb_context **ctx);
int (*libusb_control_transfer)(void *state,
libusb_device_handle *devh,
uint8_t bmRequestType,
uint8_t bRequest,
uint16_t wValue,
uint16_t wIndex,
unsigned char *data,
uint16_t wLength,
unsigned int timeout);
ssize_t (*libusb_get_device_list)(void *state, libusb_context *, libusb_device ***list);
void (*libusb_free_device_list)(void *state, libusb_device **list, int unref_devices);
int (*libusb_get_device_descriptor)(void *state, libusb_device *, struct libusb_device_descriptor *);
int (*libusb_get_config_descriptor)(void *state,
libusb_device *,
uint8_t config_index,
struct libusb_config_descriptor **);
void (*libusb_free_config_descriptor)(void *state, struct libusb_config_descriptor *);
/* POSIX File I/O */
int (*open)(void *state, const char *pathname, int flags);
int (*ioctl)(void *state, int fd, unsigned long request, va_list args);
int (*read)(void *state, int fd, void *buf, size_t sz);
int (*write)(void *state, int fd, const void *buf, size_t sz);
/* Standard I/O */
FILE* (*fopen)(void *state, const char *pathname, const char *mode);
char* (*fgets)(void *state, char *buf, int len, FILE *fp);
size_t (*fread)(void *state, void *buf, size_t size, size_t len, FILE *fp);
int (*fprintf)(void *state, FILE *fp, const char *fmt, va_list args);
int (*fclose)(void *state, FILE *fp);
/*
* An alternative to custom open mock. A test can either register its
* own mock open function or fallback_open_state.
*/
struct io_mock_fallback_open_state *fallback_open_state;
};
void io_mock_register(const struct io_mock *io);
const struct io_mock *get_io(void);
#endif
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