forked from nodejs/node
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathtransportparams.cc
294 lines (251 loc) · 9.73 KB
/
transportparams.cc
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
#if HAVE_OPENSSL && NODE_OPENSSL_HAS_QUIC
#include "transportparams.h"
#include <env-inl.h>
#include <memory_tracker-inl.h>
#include <node_sockaddr-inl.h>
#include <util-inl.h>
#include <v8.h>
#include "bindingdata.h"
#include "defs.h"
#include "endpoint.h"
#include "session.h"
#include "tokens.h"
namespace node {
using v8::ArrayBuffer;
using v8::Just;
using v8::Local;
using v8::Maybe;
using v8::Nothing;
using v8::Object;
using v8::Value;
namespace quic {
const TransportParams::Options TransportParams::Options::kDefault = {};
TransportParams::Config::Config(Side side,
const CID& ocid,
const CID& retry_scid)
: side(side), ocid(ocid), retry_scid(retry_scid) {}
Maybe<TransportParams::Options> TransportParams::Options::From(
Environment* env, Local<Value> value) {
if (value.IsEmpty()) {
THROW_ERR_INVALID_ARG_TYPE(env, "options must be an object");
return Nothing<Options>();
}
Options options;
auto& state = BindingData::Get(env);
if (value->IsUndefined()) {
return Just<Options>(options);
}
if (!value->IsObject()) {
THROW_ERR_INVALID_ARG_TYPE(env, "options must be an object");
return Nothing<Options>();
}
auto params = value.As<Object>();
#define SET(name) \
SetOption<TransportParams::Options, &TransportParams::Options::name>( \
env, &options, params, state.name##_string())
if (!SET(initial_max_stream_data_bidi_local) ||
!SET(initial_max_stream_data_bidi_remote) ||
!SET(initial_max_stream_data_uni) || !SET(initial_max_data) ||
!SET(initial_max_streams_bidi) || !SET(initial_max_streams_uni) ||
!SET(max_idle_timeout) || !SET(active_connection_id_limit) ||
!SET(ack_delay_exponent) || !SET(max_ack_delay) ||
!SET(max_datagram_frame_size)) {
return Nothing<Options>();
}
#undef SET
return Just<Options>(options);
}
std::string TransportParams::Options::ToString() const {
DebugIndentScope indent;
auto prefix = indent.Prefix();
std::string res("{");
res += prefix + "version: " + std::to_string(transportParamsVersion);
if (preferred_address_ipv4.has_value()) {
res += prefix + "preferred_address_ipv4: " +
preferred_address_ipv4.value().ToString();
} else {
res += prefix + "preferred_address_ipv4: <none>";
}
if (preferred_address_ipv6.has_value()) {
res += prefix + "preferred_address_ipv6: " +
preferred_address_ipv6.value().ToString();
} else {
res += prefix + "preferred_address_ipv6: <none>";
}
res += prefix + "initial max stream data bidi local: " +
std::to_string(initial_max_stream_data_bidi_local);
res += prefix + "initial max stream data bidi remote: " +
std::to_string(initial_max_stream_data_bidi_remote);
res += prefix + "initial max stream data uni: " +
std::to_string(initial_max_stream_data_uni);
res += prefix + "tinitial max data: " + std::to_string(initial_max_data);
res += prefix + "initial max streams bidi: " +
std::to_string(initial_max_streams_bidi);
res += prefix +
"initial max streams uni: " + std::to_string(initial_max_streams_uni);
res += prefix + "max idle timeout: " + std::to_string(max_idle_timeout);
res += prefix + "active connection id limit: " +
std::to_string(active_connection_id_limit);
res += prefix + "ack delay exponent: " + std::to_string(ack_delay_exponent);
res += prefix + "max ack delay: " + std::to_string(max_ack_delay);
res += prefix +
"max datagram frame size: " + std::to_string(max_datagram_frame_size);
res += prefix + "disable active migration: " +
(disable_active_migration ? std::string("yes") : std::string("no"));
res += indent.Close();
return res;
}
void TransportParams::Options::MemoryInfo(MemoryTracker* tracker) const {
if (preferred_address_ipv4.has_value()) {
tracker->TrackField("preferred_address_ipv4",
preferred_address_ipv4.value());
}
if (preferred_address_ipv6.has_value()) {
tracker->TrackField("preferred_address_ipv6",
preferred_address_ipv6.value());
}
}
TransportParams::TransportParams() : ptr_(¶ms_) {}
TransportParams::TransportParams(const ngtcp2_transport_params* ptr)
: ptr_(ptr) {}
TransportParams::TransportParams(const Config& config, const Options& options)
: TransportParams() {
ngtcp2_transport_params_default(¶ms_);
params_.active_connection_id_limit = options.active_connection_id_limit;
params_.initial_max_stream_data_bidi_local =
options.initial_max_stream_data_bidi_local;
params_.initial_max_stream_data_bidi_remote =
options.initial_max_stream_data_bidi_remote;
params_.initial_max_stream_data_uni = options.initial_max_stream_data_uni;
params_.initial_max_streams_bidi = options.initial_max_streams_bidi;
params_.initial_max_streams_uni = options.initial_max_streams_uni;
params_.initial_max_data = options.initial_max_data;
params_.max_idle_timeout = options.max_idle_timeout * NGTCP2_SECONDS;
params_.max_ack_delay = options.max_ack_delay;
params_.ack_delay_exponent = options.ack_delay_exponent;
params_.max_datagram_frame_size = options.max_datagram_frame_size;
params_.disable_active_migration = options.disable_active_migration ? 1 : 0;
params_.preferred_addr_present = 0;
params_.stateless_reset_token_present = 0;
params_.retry_scid_present = 0;
if (config.side == Side::SERVER) {
// For the server side, the original dcid is always set.
CHECK(config.ocid);
params_.original_dcid = config.ocid;
params_.original_dcid_present = 1;
// The retry_scid is only set if the server validated a retry token.
if (config.retry_scid) {
params_.retry_scid = config.retry_scid;
params_.retry_scid_present = 1;
}
}
if (options.preferred_address_ipv4.has_value())
SetPreferredAddress(options.preferred_address_ipv4.value());
if (options.preferred_address_ipv6.has_value())
SetPreferredAddress(options.preferred_address_ipv6.value());
}
TransportParams::TransportParams(const ngtcp2_vec& vec, int version)
: TransportParams() {
int ret = ngtcp2_transport_params_decode_versioned(
version, ¶ms_, vec.base, vec.len);
if (ret != 0) {
ptr_ = nullptr;
error_ = QuicError::ForNgtcp2Error(ret);
}
}
Store TransportParams::Encode(Environment* env, int version) const {
if (ptr_ == nullptr) {
return Store();
}
// Preflight to see how much storage we'll need.
ssize_t size =
ngtcp2_transport_params_encode_versioned(nullptr, 0, version, ¶ms_);
if (size == 0) {
return Store();
}
auto result = ArrayBuffer::NewBackingStore(
env->isolate(), size, v8::BackingStoreInitializationMode::kUninitialized);
auto ret = ngtcp2_transport_params_encode_versioned(
static_cast<uint8_t*>(result->Data()), size, version, ¶ms_);
if (ret != 0) {
return Store();
}
return Store(std::move(result), static_cast<size_t>(size));
}
void TransportParams::SetPreferredAddress(const SocketAddress& address) {
DCHECK(ptr_ == ¶ms_);
params_.preferred_addr_present = 1;
switch (address.family()) {
case AF_INET: {
const sockaddr_in* src =
reinterpret_cast<const sockaddr_in*>(address.data());
memcpy(¶ms_.preferred_addr.ipv4.sin_addr,
&src->sin_addr,
sizeof(params_.preferred_addr.ipv4.sin_addr));
params_.preferred_addr.ipv4.sin_port = address.port();
return;
}
case AF_INET6: {
const sockaddr_in6* src =
reinterpret_cast<const sockaddr_in6*>(address.data());
memcpy(¶ms_.preferred_addr.ipv6.sin6_addr,
&src->sin6_addr,
sizeof(params_.preferred_addr.ipv6.sin6_addr));
params_.preferred_addr.ipv6.sin6_port = address.port();
return;
}
}
UNREACHABLE();
}
void TransportParams::GenerateSessionTokens(Session* session) {
if (session->is_server()) {
GenerateStatelessResetToken(session->endpoint(), session->config().scid);
GeneratePreferredAddressToken(session);
}
}
void TransportParams::GenerateStatelessResetToken(const Endpoint& endpoint,
const CID& cid) {
DCHECK(ptr_ == ¶ms_);
DCHECK(cid);
params_.stateless_reset_token_present = 1;
endpoint.GenerateNewStatelessResetToken(params_.stateless_reset_token, cid);
}
void TransportParams::GeneratePreferredAddressToken(Session* session) {
DCHECK(ptr_ == ¶ms_);
Session::Config& config = session->config();
if (params_.preferred_addr_present) {
config.preferred_address_cid = session->new_cid();
params_.preferred_addr.cid = config.preferred_address_cid;
auto& endpoint = session->endpoint();
endpoint.AssociateStatelessResetToken(
endpoint.GenerateNewStatelessResetToken(
params_.preferred_addr.stateless_reset_token,
config.preferred_address_cid),
session);
}
}
TransportParams::operator const ngtcp2_transport_params&() const {
DCHECK_NOT_NULL(ptr_);
return *ptr_;
}
TransportParams::operator const ngtcp2_transport_params*() const {
DCHECK_NOT_NULL(ptr_);
return ptr_;
}
TransportParams::operator bool() const {
return ptr_ != nullptr;
}
const QuicError& TransportParams::error() const {
return error_;
}
void TransportParams::Initialize(Environment* env, Local<Object> target) {
NODE_DEFINE_CONSTANT(target, DEFAULT_MAX_STREAM_DATA);
NODE_DEFINE_CONSTANT(target, DEFAULT_MAX_DATA);
NODE_DEFINE_CONSTANT(target, DEFAULT_MAX_IDLE_TIMEOUT);
NODE_DEFINE_CONSTANT(target, DEFAULT_MAX_STREAMS_BIDI);
NODE_DEFINE_CONSTANT(target, DEFAULT_MAX_STREAMS_UNI);
NODE_DEFINE_CONSTANT(target, DEFAULT_ACTIVE_CONNECTION_ID_LIMIT);
}
} // namespace quic
} // namespace node
#endif // HAVE_OPENSSL && NODE_OPENSSL_HAS_QUIC