1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
#include "mozilla/Preferences.h"
#include "FuzzingInterface.h"
#include "FuzzyLayer.h"
#include "mozilla/SpinEventLoopUntil.h"
#include "nsComponentManagerUtils.h"
#include "nsCOMPtr.h"
#include "nsContentUtils.h"
#include "nsCycleCollector.h"
#include "nsIPrincipal.h"
#include "nsIWebSocketChannel.h"
#include "nsIWebSocketListener.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsString.h"
#include "nsScriptSecurityManager.h"
#include "nsServiceManagerUtils.h"
#include "NullPrincipal.h"
#include "nsSandboxFlags.h"
namespace mozilla {
namespace net {
// Used to determine if the fuzzing target should use https:// in spec.
static bool fuzzWSS = true;
class FuzzingWebSocketListener final : public nsIWebSocketListener {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIWEBSOCKETLISTENER
FuzzingWebSocketListener() = default;
void waitUntilDoneOrStarted() {
SpinEventLoopUntil("FuzzingWebSocketListener::waitUntilDoneOrStarted"_ns,
[&]() { return mChannelDone || mChannelStarted; });
}
void waitUntilDone() {
SpinEventLoopUntil("FuzzingWebSocketListener::waitUntilDone"_ns,
[&]() { return mChannelDone; });
}
void waitUntilDoneOrAck() {
SpinEventLoopUntil("FuzzingWebSocketListener::waitUntilDoneOrAck"_ns,
[&]() { return mChannelDone || mChannelAck; });
}
bool isStarted() { return mChannelStarted; }
private:
~FuzzingWebSocketListener() = default;
bool mChannelDone = false;
bool mChannelStarted = false;
bool mChannelAck = false;
};
NS_IMPL_ISUPPORTS(FuzzingWebSocketListener, nsIWebSocketListener)
NS_IMETHODIMP
FuzzingWebSocketListener::OnStart(nsISupports* aContext) {
FUZZING_LOG(("FuzzingWebSocketListener::OnStart"));
mChannelStarted = true;
return NS_OK;
}
NS_IMETHODIMP
FuzzingWebSocketListener::OnStop(nsISupports* aContext, nsresult aStatusCode) {
FUZZING_LOG(("FuzzingWebSocketListener::OnStop"));
mChannelDone = true;
return NS_OK;
}
NS_IMETHODIMP
FuzzingWebSocketListener::OnAcknowledge(nsISupports* aContext, uint32_t aSize) {
FUZZING_LOG(("FuzzingWebSocketListener::OnAcknowledge"));
mChannelAck = true;
return NS_OK;
}
NS_IMETHODIMP
FuzzingWebSocketListener::OnServerClose(nsISupports* aContext, uint16_t aCode,
const nsACString& aReason) {
FUZZING_LOG(("FuzzingWebSocketListener::OnServerClose"));
return NS_OK;
}
NS_IMETHODIMP
FuzzingWebSocketListener::OnMessageAvailable(nsISupports* aContext,
const nsACString& aMsg) {
FUZZING_LOG(("FuzzingWebSocketListener::OnMessageAvailable"));
return NS_OK;
}
NS_IMETHODIMP
FuzzingWebSocketListener::OnBinaryMessageAvailable(nsISupports* aContext,
const nsACString& aMsg) {
FUZZING_LOG(("FuzzingWebSocketListener::OnBinaryMessageAvailable"));
return NS_OK;
}
NS_IMETHODIMP
FuzzingWebSocketListener::OnError() {
FUZZING_LOG(("FuzzingWebSocketListener::OnError"));
return NS_OK;
}
static int FuzzingInitNetworkWebsocket(int* argc, char*** argv) {
Preferences::SetBool("network.dns.native-is-localhost", true);
Preferences::SetBool("fuzzing.necko.enabled", true);
Preferences::SetBool("network.websocket.delay-failed-reconnects", false);
Preferences::SetInt("network.http.speculative-parallel-limit", 0);
Preferences::SetInt("network.proxy.type", 0); // PROXYCONFIG_DIRECT
return 0;
}
static int FuzzingInitNetworkWebsocketPlain(int* argc, char*** argv) {
fuzzWSS = false;
return FuzzingInitNetworkWebsocket(argc, argv);
}
static int FuzzingRunNetworkWebsocket(const uint8_t* data, size_t size) {
// Set the data to be processed
addNetworkFuzzingBuffer(data, size);
nsWeakPtr channelRef;
{
nsresult rv;
nsSecurityFlags secFlags;
secFlags = nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_SEC_CONTEXT_IS_NULL;
uint32_t sandboxFlags = SANDBOXED_ORIGIN;
nsCOMPtr<nsIURI> url;
nsAutoCString spec;
RefPtr<FuzzingWebSocketListener> gWebSocketListener;
nsCOMPtr<nsIWebSocketChannel> gWebSocketChannel;
if (fuzzWSS) {
spec = "https://127.0.0.1/";
gWebSocketChannel =
do_CreateInstance("@mozilla.org/network/protocol;1?name=wss", &rv);
} else {
spec = "http://127.0.0.1/";
gWebSocketChannel =
do_CreateInstance("@mozilla.org/network/protocol;1?name=ws", &rv);
}
if (rv != NS_OK) {
MOZ_CRASH("Failed to create WebSocketChannel");
}
if (NS_NewURI(getter_AddRefs(url), spec) != NS_OK) {
MOZ_CRASH("Call to NS_NewURI failed.");
}
nsCOMPtr<nsIPrincipal> nullPrincipal =
NullPrincipal::CreateWithoutOriginAttributes();
rv = gWebSocketChannel->InitLoadInfoNative(
nullptr, nullPrincipal, nsContentUtils::GetSystemPrincipal(), nullptr,
secFlags, nsIContentPolicy::TYPE_WEBSOCKET, sandboxFlags);
if (rv != NS_OK) {
MOZ_CRASH("Failed to call InitLoadInfo");
}
gWebSocketListener = new FuzzingWebSocketListener();
OriginAttributes attrs;
rv = gWebSocketChannel->AsyncOpenNative(url, spec, attrs, 0,
gWebSocketListener, nullptr);
if (rv == NS_OK) {
FUZZING_LOG(("Successful call to AsyncOpen"));
// Wait for StartRequest or StopRequest
gWebSocketListener->waitUntilDoneOrStarted();
if (gWebSocketListener->isStarted()) {
rv = gWebSocketChannel->SendBinaryMsg("Hello world"_ns);
if (rv != NS_OK) {
FUZZING_LOG(("Warning: Failed to call SendBinaryMsg"));
} else {
gWebSocketListener->waitUntilDoneOrAck();
}
rv = gWebSocketChannel->Close(1000, ""_ns);
if (rv != NS_OK) {
FUZZING_LOG(("Warning: Failed to call close"));
}
}
// Wait for StopRequest
gWebSocketListener->waitUntilDone();
} else {
FUZZING_LOG(("Warning: Failed to call AsyncOpen"));
}
channelRef = do_GetWeakReference(gWebSocketChannel);
}
// Wait for the channel to be destroyed
SpinEventLoopUntil(
"FuzzingRunNetworkWebsocket(channel == nullptr)"_ns, [&]() -> bool {
nsCycleCollector_collect(CCReason::API, nullptr);
nsCOMPtr<nsIWebSocketChannel> channel = do_QueryReferent(channelRef);
return channel == nullptr;
});
if (!signalNetworkFuzzingDone()) {
// Wait for the connection to indicate closed
SpinEventLoopUntil("FuzzingRunNetworkWebsocket(gFuzzingConnClosed)"_ns,
[&]() -> bool { return gFuzzingConnClosed; });
}
return 0;
}
MOZ_FUZZING_INTERFACE_RAW(FuzzingInitNetworkWebsocket,
FuzzingRunNetworkWebsocket, NetworkWebsocket);
MOZ_FUZZING_INTERFACE_RAW(FuzzingInitNetworkWebsocketPlain,
FuzzingRunNetworkWebsocket, NetworkWebsocketPlain);
} // namespace net
} // namespace mozilla
|
