1 /*
2 * Copyright (c) 2017, The OpenThread Authors.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. Neither the name of the copyright holder nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <stdlib.h>
30 #include <string.h>
31
32 #include <openthread/instance.h>
33 #include <openthread/ip6.h>
34 #include <openthread/link.h>
35 #include <openthread/tasklet.h>
36 #include <openthread/thread.h>
37 #include <openthread/thread_ftd.h>
38 #include <openthread/platform/alarm-milli.h>
39 #include <openthread/platform/radio.h>
40
41 #include "fuzzer_platform.h"
42 #include "common/code_utils.hpp"
43 #include "common/time.hpp"
44
AdvanceTime(otInstance * aInstance,uint32_t aDuration)45 void AdvanceTime(otInstance *aInstance, uint32_t aDuration)
46 {
47 uint32_t time = otPlatAlarmMilliGetNow() + aDuration;
48
49 while (ot::TimeMilli(otPlatAlarmMilliGetNow()) <= ot::TimeMilli(time))
50 {
51 while (otTaskletsArePending(aInstance))
52 {
53 otTaskletsProcess(aInstance);
54 }
55
56 FuzzerPlatformProcess(aInstance);
57 }
58 }
59
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)60 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
61 {
62 const otPanId panId = 0xdead;
63
64 otInstance *instance = nullptr;
65 otRadioFrame frame;
66 uint8_t *buf = nullptr;
67
68 VerifyOrExit(size <= OT_RADIO_FRAME_MAX_SIZE);
69
70 FuzzerPlatformInit();
71
72 instance = otInstanceInitSingle();
73 IgnoreError(otLinkSetPanId(instance, panId));
74 IgnoreError(otIp6SetEnabled(instance, true));
75 IgnoreError(otThreadSetEnabled(instance, true));
76 IgnoreError(otThreadBecomeLeader(instance));
77
78 AdvanceTime(instance, 10000);
79
80 buf = static_cast<uint8_t *>(malloc(size));
81 memset(&frame, 0, sizeof(frame));
82 frame.mPsdu = buf;
83 frame.mChannel = 11;
84 frame.mLength = static_cast<uint8_t>(size);
85 memcpy(buf, data, frame.mLength);
86
87 otPlatRadioReceiveDone(instance, &frame, OT_ERROR_NONE);
88
89 VerifyOrExit(!FuzzerPlatformResetWasRequested());
90
91 AdvanceTime(instance, 10000);
92
93 exit:
94
95 if (buf != nullptr)
96 {
97 free(buf);
98 }
99
100 if (instance != nullptr)
101 {
102 otInstanceFinalize(instance);
103 }
104
105 return 0;
106 }
107
