wireguard-tools/src/fuzz/uapi.c

57 lines
1.2 KiB
C
Raw Normal View History

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#include <stdio.h>
#include <sys/stat.h>
static FILE *hacked_userspace_interface_file(const char *iface);
#define stat(a, b) ({ return hacked_userspace_interface_file(iface); 0; })
#define RUNSTATEDIR "/var/empty"
#include "../curve25519.c"
#undef __linux__
#include "../ipc.c"
#include "../encoding.c"
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
const char *__asan_default_options()
{
return "verbosity=1";
}
union hackiface {
char ifname[IFNAMSIZ];
struct {
const uint8_t *data;
size_t len;
};
};
static FILE *hacked_userspace_interface_file(const char *iface)
{
union hackiface *hack = (union hackiface *)iface;
FILE *f = fmemopen(NULL, hack->len + 7, "r+");
fseek(f, 7, SEEK_SET);
fwrite(hack->data, hack->len, 1, f);
fseek(f, 0, SEEK_SET);
memcpy(hack->ifname, "hack", 5);
return f;
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t len)
{
union hackiface hack = {
.data = data,
.len = len
};
struct wgdevice *dev = NULL;
userspace_get_device(&dev, (const char *)&hack);
free_wgdevice(dev);
return 0;
}