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
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/spdy/spdy_protocol.h"
#include "base/memory/scoped_ptr.h"
#include "net/spdy/spdy_bitmasks.h"
#include "net/spdy/spdy_framer.h"
#include "testing/platform_test.h"
using spdy::CONTROL_FLAG_FIN;
using spdy::CONTROL_FLAG_NONE;
using spdy::GOAWAY;
using spdy::HEADERS;
using spdy::NOOP;
using spdy::NUM_CONTROL_FRAME_TYPES;
using spdy::PING;
using spdy::RST_STREAM;
using spdy::SETTINGS;
using spdy::SYN_REPLY;
using spdy::SYN_STREAM;
using spdy::WINDOW_UPDATE;
using spdy::FlagsAndLength;
using spdy::SpdyControlFrame;
using spdy::SpdyControlType;
using spdy::SpdyDataFrame;
using spdy::SpdyFrame;
using spdy::SpdyFramer;
using spdy::SpdyHeaderBlock;
using spdy::SpdyHeadersControlFrame;
using spdy::SpdyGoAwayControlFrame;
using spdy::SpdyNoOpControlFrame;
using spdy::SpdyPingControlFrame;
using spdy::SpdyRstStreamControlFrame;
using spdy::SpdySettings;
using spdy::SpdySettingsControlFrame;
using spdy::SpdyStatusCodes;
using spdy::SpdySynReplyControlFrame;
using spdy::SpdySynStreamControlFrame;
using spdy::SpdyWindowUpdateControlFrame;
using spdy::SettingsFlagsAndId;
using spdy::kLengthMask;
using spdy::kSpdyProtocolVersion;
using spdy::kStreamIdMask;
namespace {
// Test our protocol constants
TEST(SpdyProtocolTest, ProtocolConstants) {
EXPECT_EQ(8u, SpdyFrame::kHeaderSize);
EXPECT_EQ(8u, SpdyDataFrame::size());
EXPECT_EQ(8u, SpdyControlFrame::kHeaderSize);
EXPECT_EQ(18u, SpdySynStreamControlFrame::size());
EXPECT_EQ(14u, SpdySynReplyControlFrame::size());
EXPECT_EQ(16u, SpdyRstStreamControlFrame::size());
EXPECT_EQ(12u, SpdySettingsControlFrame::size());
EXPECT_EQ(8u, SpdyNoOpControlFrame::size());
EXPECT_EQ(12u, SpdyPingControlFrame::size());
EXPECT_EQ(12u, SpdyGoAwayControlFrame::size());
EXPECT_EQ(14u, SpdyHeadersControlFrame::size());
EXPECT_EQ(16u, SpdyWindowUpdateControlFrame::size());
EXPECT_EQ(4u, sizeof(FlagsAndLength));
EXPECT_EQ(1, SYN_STREAM);
EXPECT_EQ(2, SYN_REPLY);
EXPECT_EQ(3, RST_STREAM);
EXPECT_EQ(4, SETTINGS);
EXPECT_EQ(5, NOOP);
EXPECT_EQ(6, PING);
EXPECT_EQ(7, GOAWAY);
EXPECT_EQ(8, HEADERS);
EXPECT_EQ(9, WINDOW_UPDATE);
}
// Test some of the protocol helper functions
TEST(SpdyProtocolTest, FrameStructs) {
SpdyFrame frame(SpdyFrame::kHeaderSize);
frame.set_length(12345);
frame.set_flags(10);
EXPECT_EQ(12345u, frame.length());
EXPECT_EQ(10u, frame.flags());
EXPECT_FALSE(frame.is_control_frame());
frame.set_length(0);
frame.set_flags(10);
EXPECT_EQ(0u, frame.length());
EXPECT_EQ(10u, frame.flags());
EXPECT_FALSE(frame.is_control_frame());
}
TEST(SpdyProtocolTest, DataFrameStructs) {
SpdyDataFrame data_frame;
data_frame.set_stream_id(12345);
EXPECT_EQ(12345u, data_frame.stream_id());
}
TEST(SpdyProtocolTest, ControlFrameStructs) {
SpdyFramer framer;
SpdyHeaderBlock headers;
scoped_ptr<SpdySynStreamControlFrame> syn_frame(
framer.CreateSynStream(123, 456, 2, CONTROL_FLAG_FIN, false, &headers));
EXPECT_EQ(kSpdyProtocolVersion, syn_frame->version());
EXPECT_TRUE(syn_frame->is_control_frame());
EXPECT_EQ(SYN_STREAM, syn_frame->type());
EXPECT_EQ(123u, syn_frame->stream_id());
EXPECT_EQ(456u, syn_frame->associated_stream_id());
EXPECT_EQ(2u, syn_frame->priority());
EXPECT_EQ(2, syn_frame->header_block_len());
EXPECT_EQ(1u, syn_frame->flags());
syn_frame->set_associated_stream_id(999u);
EXPECT_EQ(123u, syn_frame->stream_id());
EXPECT_EQ(999u, syn_frame->associated_stream_id());
scoped_ptr<SpdySynReplyControlFrame> syn_reply(
framer.CreateSynReply(123, CONTROL_FLAG_NONE, false, &headers));
EXPECT_EQ(kSpdyProtocolVersion, syn_reply->version());
EXPECT_TRUE(syn_reply->is_control_frame());
EXPECT_EQ(SYN_REPLY, syn_reply->type());
EXPECT_EQ(123u, syn_reply->stream_id());
EXPECT_EQ(2, syn_reply->header_block_len());
EXPECT_EQ(0, syn_reply->flags());
scoped_ptr<SpdyRstStreamControlFrame> rst_frame(
framer.CreateRstStream(123, spdy::PROTOCOL_ERROR));
EXPECT_EQ(kSpdyProtocolVersion, rst_frame->version());
EXPECT_TRUE(rst_frame->is_control_frame());
EXPECT_EQ(RST_STREAM, rst_frame->type());
EXPECT_EQ(123u, rst_frame->stream_id());
EXPECT_EQ(spdy::PROTOCOL_ERROR, rst_frame->status());
rst_frame->set_status(spdy::INVALID_STREAM);
EXPECT_EQ(spdy::INVALID_STREAM, rst_frame->status());
EXPECT_EQ(0, rst_frame->flags());
scoped_ptr<SpdyNoOpControlFrame> noop_frame(
framer.CreateNopFrame());
EXPECT_EQ(kSpdyProtocolVersion, noop_frame->version());
EXPECT_TRUE(noop_frame->is_control_frame());
EXPECT_EQ(NOOP, noop_frame->type());
EXPECT_EQ(0, noop_frame->flags());
const uint32 kUniqueId = 1234567u;
const uint32 kUniqueId2 = 31415926u;
scoped_ptr<SpdyPingControlFrame> ping_frame(
framer.CreatePingFrame(kUniqueId));
EXPECT_EQ(kSpdyProtocolVersion, ping_frame->version());
EXPECT_TRUE(ping_frame->is_control_frame());
EXPECT_EQ(PING, ping_frame->type());
EXPECT_EQ(kUniqueId, ping_frame->unique_id());
ping_frame->set_unique_id(kUniqueId2);
EXPECT_EQ(kUniqueId2, ping_frame->unique_id());
scoped_ptr<SpdyGoAwayControlFrame> goaway_frame(
framer.CreateGoAway(123));
EXPECT_EQ(kSpdyProtocolVersion, goaway_frame->version());
EXPECT_TRUE(goaway_frame->is_control_frame());
EXPECT_EQ(GOAWAY, goaway_frame->type());
EXPECT_EQ(123u, goaway_frame->last_accepted_stream_id());
scoped_ptr<SpdyHeadersControlFrame> headers_frame(
framer.CreateHeaders(123, CONTROL_FLAG_NONE, false, &headers));
EXPECT_EQ(kSpdyProtocolVersion, headers_frame->version());
EXPECT_TRUE(headers_frame->is_control_frame());
EXPECT_EQ(HEADERS, headers_frame->type());
EXPECT_EQ(123u, headers_frame->stream_id());
EXPECT_EQ(2, headers_frame->header_block_len());
EXPECT_EQ(0, headers_frame->flags());
scoped_ptr<SpdyWindowUpdateControlFrame> window_update_frame(
framer.CreateWindowUpdate(123, 456));
EXPECT_EQ(kSpdyProtocolVersion, window_update_frame->version());
EXPECT_TRUE(window_update_frame->is_control_frame());
EXPECT_EQ(WINDOW_UPDATE, window_update_frame->type());
EXPECT_EQ(123u, window_update_frame->stream_id());
EXPECT_EQ(456u, window_update_frame->delta_window_size());
}
TEST(SpdyProtocolTest, TestDataFrame) {
SpdyDataFrame frame;
// Set the stream ID to various values.
frame.set_stream_id(0);
EXPECT_EQ(0u, frame.stream_id());
EXPECT_FALSE(frame.is_control_frame());
frame.set_stream_id(~0 & kStreamIdMask);
EXPECT_EQ(~0 & kStreamIdMask, frame.stream_id());
EXPECT_FALSE(frame.is_control_frame());
// Set length to various values. Make sure that when you set_length(x),
// length() == x. Also make sure the flags are unaltered.
memset(frame.data(), '1', SpdyDataFrame::size());
int8 flags = frame.flags();
frame.set_length(0);
EXPECT_EQ(0u, frame.length());
EXPECT_EQ(flags, frame.flags());
frame.set_length(kLengthMask);
EXPECT_EQ(kLengthMask, frame.length());
EXPECT_EQ(flags, frame.flags());
frame.set_length(5u);
EXPECT_EQ(5u, frame.length());
EXPECT_EQ(flags, frame.flags());
// Set flags to various values. Make sure that when you set_flags(x),
// flags() == x. Also make sure the length is unaltered.
memset(frame.data(), '1', SpdyDataFrame::size());
uint32 length = frame.length();
frame.set_flags(0u);
EXPECT_EQ(0u, frame.flags());
EXPECT_EQ(length, frame.length());
int8 all_flags = ~0;
frame.set_flags(all_flags);
flags = frame.flags();
EXPECT_EQ(all_flags, flags);
EXPECT_EQ(length, frame.length());
frame.set_flags(5u);
EXPECT_EQ(5u, frame.flags());
EXPECT_EQ(length, frame.length());
}
// Test various types of SETTINGS frames.
TEST(SpdyProtocolTest, TestSpdySettingsFrame) {
SpdyFramer framer;
// Create a settings frame with no settings.
SpdySettings settings;
scoped_ptr<SpdySettingsControlFrame> settings_frame(
framer.CreateSettings(settings));
EXPECT_EQ(kSpdyProtocolVersion, settings_frame->version());
EXPECT_TRUE(settings_frame->is_control_frame());
EXPECT_EQ(SETTINGS, settings_frame->type());
EXPECT_EQ(0u, settings_frame->num_entries());
// We'll add several different ID/Flag combinations and then verify
// that they encode and decode properly.
SettingsFlagsAndId ids[] = {
0x00000000,
0xffffffff,
0xff000001,
0x01000002,
};
for (size_t index = 0; index < arraysize(ids); ++index) {
settings.insert(settings.end(), std::make_pair(ids[index], index));
settings_frame.reset(framer.CreateSettings(settings));
EXPECT_EQ(kSpdyProtocolVersion, settings_frame->version());
EXPECT_TRUE(settings_frame->is_control_frame());
EXPECT_EQ(SETTINGS, settings_frame->type());
EXPECT_EQ(index + 1, settings_frame->num_entries());
SpdySettings parsed_settings;
EXPECT_TRUE(framer.ParseSettings(settings_frame.get(), &parsed_settings));
EXPECT_EQ(parsed_settings.size(), settings.size());
SpdySettings::const_iterator it = parsed_settings.begin();
int pos = 0;
while (it != parsed_settings.end()) {
SettingsFlagsAndId parsed = it->first;
uint32 value = it->second;
EXPECT_EQ(parsed.flags(), ids[pos].flags());
EXPECT_EQ(parsed.id(), ids[pos].id());
EXPECT_EQ(value, static_cast<uint32>(pos));
++it;
++pos;
}
}
}
TEST(SpdyProtocolTest, HasHeaderBlock) {
SpdyControlFrame frame(SpdyControlFrame::kHeaderSize);
for (SpdyControlType type = SYN_STREAM;
type < NUM_CONTROL_FRAME_TYPES;
type = static_cast<SpdyControlType>(type + 1)) {
frame.set_type(type);
if (type == SYN_STREAM || type == SYN_REPLY || type == HEADERS) {
EXPECT_TRUE(frame.has_header_block());
} else {
EXPECT_FALSE(frame.has_header_block());
}
}
}
// Make sure that overflows both die in debug mode, and do not cause problems
// in opt mode. Note: The EXPECT_DEBUG_DEATH call does not work on Win32 yet,
// so we comment it out.
TEST(SpdyProtocolDeathTest, TestDataFrame) {
SpdyDataFrame frame;
frame.set_stream_id(0);
// TODO(mbelshe): implement EXPECT_DEBUG_DEATH on windows.
#if !defined(WIN32) && defined(GTEST_HAS_DEATH_TEST)
#if !defined(DCHECK_ALWAYS_ON)
EXPECT_DEBUG_DEATH(frame.set_stream_id(~0), "");
#else
EXPECT_DEATH(frame.set_stream_id(~0), "");
#endif
#endif
EXPECT_FALSE(frame.is_control_frame());
frame.set_flags(0);
#if !defined(WIN32) && defined(GTEST_HAS_DEATH_TEST)
#if !defined(DCHECK_ALWAYS_ON)
EXPECT_DEBUG_DEATH(frame.set_length(~0), "");
#else
EXPECT_DEATH(frame.set_length(~0), "");
#endif
#endif
EXPECT_EQ(0, frame.flags());
}
TEST(SpdyProtocolDeathTest, TestSpdyControlFrameStreamId) {
SpdyControlFrame frame_store(SpdySynStreamControlFrame::size());
memset(frame_store.data(), '1', SpdyControlFrame::kHeaderSize);
SpdySynStreamControlFrame* frame =
reinterpret_cast<SpdySynStreamControlFrame*>(&frame_store);
// Set the stream ID to various values.
frame->set_stream_id(0);
EXPECT_EQ(0u, frame->stream_id());
EXPECT_FALSE(frame->is_control_frame());
frame->set_stream_id(kStreamIdMask);
EXPECT_EQ(kStreamIdMask, frame->stream_id());
EXPECT_FALSE(frame->is_control_frame());
}
TEST(SpdyProtocolDeathTest, TestSpdyControlFrameVersion) {
const unsigned int kVersionMask = 0x7fff;
SpdyControlFrame frame(SpdySynStreamControlFrame::size());
memset(frame.data(), '1', SpdyControlFrame::kHeaderSize);
// Set the version to various values, and make sure it does not affect the
// type.
frame.set_type(SYN_STREAM);
frame.set_version(0);
EXPECT_EQ(0, frame.version());
EXPECT_TRUE(frame.is_control_frame());
EXPECT_EQ(SYN_STREAM, frame.type());
SpdySynStreamControlFrame* syn_stream =
reinterpret_cast<SpdySynStreamControlFrame*>(&frame);
syn_stream->set_stream_id(~0 & kVersionMask);
EXPECT_EQ(~0 & kVersionMask, syn_stream->stream_id());
EXPECT_TRUE(frame.is_control_frame());
EXPECT_EQ(SYN_STREAM, frame.type());
}
TEST(SpdyProtocolDeathTest, TestSpdyControlFrameType) {
SpdyControlFrame frame(SpdyControlFrame::kHeaderSize);
memset(frame.data(), 255, SpdyControlFrame::kHeaderSize);
// type() should be out of bounds.
EXPECT_FALSE(frame.AppearsToBeAValidControlFrame());
uint16 version = frame.version();
for (int i = SYN_STREAM; i <= spdy::NOOP; ++i) {
frame.set_type(static_cast<SpdyControlType>(i));
EXPECT_EQ(i, static_cast<int>(frame.type()));
EXPECT_TRUE(frame.AppearsToBeAValidControlFrame());
// Make sure setting type does not alter the version block.
EXPECT_EQ(version, frame.version());
EXPECT_TRUE(frame.is_control_frame());
}
}
TEST(SpdyProtocolDeathTest, TestRstStreamStatusBounds) {
SpdyFramer framer;
scoped_ptr<SpdyRstStreamControlFrame> rst_frame;
rst_frame.reset(framer.CreateRstStream(123, spdy::PROTOCOL_ERROR));
EXPECT_EQ(spdy::PROTOCOL_ERROR, rst_frame->status());
rst_frame->set_status(spdy::INVALID);
EXPECT_EQ(spdy::INVALID, rst_frame->status());
rst_frame->set_status(
static_cast<spdy::SpdyStatusCodes>(spdy::INVALID - 1));
EXPECT_EQ(spdy::INVALID, rst_frame->status());
rst_frame->set_status(spdy::NUM_STATUS_CODES);
EXPECT_EQ(spdy::INVALID, rst_frame->status());
}
} // namespace
|