mirror of
https://github.com/token2/fido2-manage.git
synced 2026-04-09 10:45:39 +00:00
Add files via upload
This commit is contained in:
Token2
GitHub
270
fuzz/udev.c
Normal file
270
fuzz/udev.c
Normal file
@@ -0,0 +1,270 @@
|
||||
/*
|
||||
* Copyright (c) 2021 Yubico AB. All rights reserved.
|
||||
* Use of this source code is governed by a BSD-style
|
||||
* license that can be found in the LICENSE file.
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <linux/hidraw.h>
|
||||
#include <linux/input.h>
|
||||
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <libudev.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "mutator_aux.h"
|
||||
|
||||
struct udev {
|
||||
int magic;
|
||||
};
|
||||
|
||||
struct udev_enumerate {
|
||||
int magic;
|
||||
struct udev_list_entry *list_entry;
|
||||
};
|
||||
|
||||
struct udev_list_entry {
|
||||
int magic;
|
||||
};
|
||||
|
||||
struct udev_device {
|
||||
int magic;
|
||||
struct udev_device *parent;
|
||||
};
|
||||
|
||||
#define UDEV_MAGIC 0x584492cc
|
||||
#define UDEV_DEVICE_MAGIC 0x569180dd
|
||||
#define UDEV_LIST_ENTRY_MAGIC 0x497422ee
|
||||
#define UDEV_ENUM_MAGIC 0x583570ff
|
||||
|
||||
#define ASSERT_TYPE(x, m) assert((x) != NULL && (x)->magic == (m))
|
||||
#define ASSERT_UDEV(x) ASSERT_TYPE((x), UDEV_MAGIC)
|
||||
#define ASSERT_UDEV_ENUM(x) ASSERT_TYPE((x), UDEV_ENUM_MAGIC)
|
||||
#define ASSERT_UDEV_LIST_ENTRY(x) ASSERT_TYPE((x), UDEV_LIST_ENTRY_MAGIC)
|
||||
#define ASSERT_UDEV_DEVICE(x) ASSERT_TYPE((x), UDEV_DEVICE_MAGIC)
|
||||
|
||||
static const char *uevent;
|
||||
static const struct blob *report_descriptor;
|
||||
|
||||
struct udev *__wrap_udev_new(void);
|
||||
struct udev_device *__wrap_udev_device_get_parent_with_subsystem_devtype(
|
||||
struct udev_device *, const char *, const char *);
|
||||
struct udev_device *__wrap_udev_device_new_from_syspath(struct udev *,
|
||||
const char *);
|
||||
struct udev_enumerate *__wrap_udev_enumerate_new(struct udev *);
|
||||
struct udev_list_entry *__wrap_udev_enumerate_get_list_entry(
|
||||
struct udev_enumerate *);
|
||||
struct udev_list_entry *__wrap_udev_list_entry_get_next(
|
||||
struct udev_list_entry *);
|
||||
const char *__wrap_udev_device_get_sysattr_value(struct udev_device *,
|
||||
const char *);
|
||||
const char *__wrap_udev_list_entry_get_name(struct udev_list_entry *);
|
||||
const char *__wrap_udev_device_get_devnode(struct udev_device *);
|
||||
const char *__wrap_udev_device_get_sysnum(struct udev_device *);
|
||||
int __wrap_udev_enumerate_add_match_subsystem(struct udev_enumerate *,
|
||||
const char *);
|
||||
int __wrap_udev_enumerate_scan_devices(struct udev_enumerate *);
|
||||
int __wrap_ioctl(int, unsigned long , ...);
|
||||
void __wrap_udev_device_unref(struct udev_device *);
|
||||
void __wrap_udev_enumerate_unref(struct udev_enumerate *);
|
||||
void __wrap_udev_unref(struct udev *);
|
||||
void set_udev_parameters(const char *, const struct blob *);
|
||||
|
||||
struct udev_device *
|
||||
__wrap_udev_device_get_parent_with_subsystem_devtype(struct udev_device *child,
|
||||
const char *subsystem, const char *devtype)
|
||||
{
|
||||
ASSERT_UDEV_DEVICE(child);
|
||||
fido_log_debug("%s", subsystem); /* XXX consume */
|
||||
fido_log_debug("%s", devtype); /* XXX consume */
|
||||
if (child->parent != NULL)
|
||||
return child->parent;
|
||||
if ((child->parent = calloc(1, sizeof(*child->parent))) == NULL)
|
||||
return NULL;
|
||||
child->parent->magic = UDEV_DEVICE_MAGIC;
|
||||
|
||||
return child->parent;
|
||||
}
|
||||
|
||||
const char *
|
||||
__wrap_udev_device_get_sysattr_value(struct udev_device *udev_device,
|
||||
const char *sysattr)
|
||||
{
|
||||
ASSERT_UDEV_DEVICE(udev_device);
|
||||
if (uniform_random(400) < 1)
|
||||
return NULL;
|
||||
if (!strcmp(sysattr, "manufacturer") || !strcmp(sysattr, "product"))
|
||||
return "product info"; /* XXX randomise? */
|
||||
else if (!strcmp(sysattr, "uevent"))
|
||||
return uevent;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const char *
|
||||
__wrap_udev_list_entry_get_name(struct udev_list_entry *entry)
|
||||
{
|
||||
ASSERT_UDEV_LIST_ENTRY(entry);
|
||||
return uniform_random(400) < 1 ? NULL : "name"; /* XXX randomise? */
|
||||
}
|
||||
|
||||
struct udev_device *
|
||||
__wrap_udev_device_new_from_syspath(struct udev *udev, const char *syspath)
|
||||
{
|
||||
struct udev_device *udev_device;
|
||||
|
||||
ASSERT_UDEV(udev);
|
||||
fido_log_debug("%s", syspath);
|
||||
if ((udev_device = calloc(1, sizeof(*udev_device))) == NULL)
|
||||
return NULL;
|
||||
udev_device->magic = UDEV_DEVICE_MAGIC;
|
||||
|
||||
return udev_device;
|
||||
}
|
||||
|
||||
const char *
|
||||
__wrap_udev_device_get_devnode(struct udev_device *udev_device)
|
||||
{
|
||||
ASSERT_UDEV_DEVICE(udev_device);
|
||||
return uniform_random(400) < 1 ? NULL : "/dev/zero";
|
||||
}
|
||||
|
||||
const char *
|
||||
__wrap_udev_device_get_sysnum(struct udev_device *udev_device)
|
||||
{
|
||||
ASSERT_UDEV_DEVICE(udev_device);
|
||||
return uniform_random(400) < 1 ? NULL : "101010"; /* XXX randomise? */
|
||||
}
|
||||
|
||||
void
|
||||
__wrap_udev_device_unref(struct udev_device *udev_device)
|
||||
{
|
||||
ASSERT_UDEV_DEVICE(udev_device);
|
||||
if (udev_device->parent) {
|
||||
ASSERT_UDEV_DEVICE(udev_device->parent);
|
||||
free(udev_device->parent);
|
||||
}
|
||||
free(udev_device);
|
||||
}
|
||||
|
||||
struct udev *
|
||||
__wrap_udev_new(void)
|
||||
{
|
||||
struct udev *udev;
|
||||
|
||||
if ((udev = calloc(1, sizeof(*udev))) == NULL)
|
||||
return NULL;
|
||||
udev->magic = UDEV_MAGIC;
|
||||
|
||||
return udev;
|
||||
}
|
||||
|
||||
struct udev_enumerate *
|
||||
__wrap_udev_enumerate_new(struct udev *udev)
|
||||
{
|
||||
struct udev_enumerate *udev_enum;
|
||||
|
||||
ASSERT_UDEV(udev);
|
||||
if ((udev_enum = calloc(1, sizeof(*udev_enum))) == NULL)
|
||||
return NULL;
|
||||
udev_enum->magic = UDEV_ENUM_MAGIC;
|
||||
|
||||
return udev_enum;
|
||||
}
|
||||
|
||||
int
|
||||
__wrap_udev_enumerate_add_match_subsystem(struct udev_enumerate *udev_enum,
|
||||
const char *subsystem)
|
||||
{
|
||||
ASSERT_UDEV_ENUM(udev_enum);
|
||||
fido_log_debug("%s:", subsystem);
|
||||
return uniform_random(400) < 1 ? -EINVAL : 0;
|
||||
}
|
||||
|
||||
int
|
||||
__wrap_udev_enumerate_scan_devices(struct udev_enumerate *udev_enum)
|
||||
{
|
||||
ASSERT_UDEV_ENUM(udev_enum);
|
||||
return uniform_random(400) < 1 ? -EINVAL : 0;
|
||||
}
|
||||
|
||||
struct udev_list_entry *
|
||||
__wrap_udev_enumerate_get_list_entry(struct udev_enumerate *udev_enum)
|
||||
{
|
||||
ASSERT_UDEV_ENUM(udev_enum);
|
||||
if ((udev_enum->list_entry = calloc(1,
|
||||
sizeof(*udev_enum->list_entry))) == NULL)
|
||||
return NULL;
|
||||
udev_enum->list_entry->magic = UDEV_LIST_ENTRY_MAGIC;
|
||||
|
||||
return udev_enum->list_entry;
|
||||
}
|
||||
|
||||
struct udev_list_entry *
|
||||
__wrap_udev_list_entry_get_next(struct udev_list_entry *udev_list_entry)
|
||||
{
|
||||
ASSERT_UDEV_LIST_ENTRY(udev_list_entry);
|
||||
return uniform_random(400) < 1 ? NULL : udev_list_entry;
|
||||
}
|
||||
|
||||
void
|
||||
__wrap_udev_enumerate_unref(struct udev_enumerate *udev_enum)
|
||||
{
|
||||
ASSERT_UDEV_ENUM(udev_enum);
|
||||
if (udev_enum->list_entry)
|
||||
ASSERT_UDEV_LIST_ENTRY(udev_enum->list_entry);
|
||||
free(udev_enum->list_entry);
|
||||
free(udev_enum);
|
||||
}
|
||||
|
||||
void
|
||||
__wrap_udev_unref(struct udev *udev)
|
||||
{
|
||||
ASSERT_UDEV(udev);
|
||||
free(udev);
|
||||
}
|
||||
|
||||
int
|
||||
__wrap_ioctl(int fd, unsigned long request, ...)
|
||||
{
|
||||
va_list ap;
|
||||
struct hidraw_report_descriptor *hrd;
|
||||
|
||||
(void)fd;
|
||||
|
||||
if (uniform_random(400) < 1) {
|
||||
errno = EINVAL;
|
||||
return -1;
|
||||
}
|
||||
|
||||
va_start(ap, request);
|
||||
|
||||
switch (IOCTL_REQ(request)) {
|
||||
case IOCTL_REQ(HIDIOCGRDESCSIZE):
|
||||
*va_arg(ap, int *) = (int)report_descriptor->len;
|
||||
break;
|
||||
case IOCTL_REQ(HIDIOCGRDESC):
|
||||
hrd = va_arg(ap, struct hidraw_report_descriptor *);
|
||||
assert(hrd->size == report_descriptor->len);
|
||||
memcpy(hrd->value, report_descriptor->body, hrd->size);
|
||||
break;
|
||||
default:
|
||||
warnx("%s: unknown request 0x%lx", __func__, request);
|
||||
abort();
|
||||
}
|
||||
|
||||
va_end(ap);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
set_udev_parameters(const char *uevent_ptr,
|
||||
const struct blob *report_descriptor_ptr)
|
||||
{
|
||||
uevent = uevent_ptr;
|
||||
report_descriptor = report_descriptor_ptr;
|
||||
}
|
||||
Reference in New Issue
Block a user