-
Notifications
You must be signed in to change notification settings - Fork 12
Expand file tree
/
Copy pathEndpointFlowExtension.swift
More file actions
344 lines (331 loc) · 16.4 KB
/
Copy pathEndpointFlowExtension.swift
File metadata and controls
344 lines (331 loc) · 16.4 KB
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
//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2026 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of Swift project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
#if canImport(Glibc)
import Glibc
internal import Logging
#elseif canImport(Musl)
import Musl
internal import Logging
#elseif canImport(os)
internal import os
#endif
@available(Network 0.1.0, *)
struct EndpointFlowPrivateStorage {
func handleStateChange(_ state: EndpointFlow.State) {}
mutating func initForReuse(_ flow: EndpointFlow) {}
}
@available(Network 0.1.0, *)
extension EndpointFlow {
internal func startOnQueue() throws(NetworkError) {
parameters.context.assert()
self.state = .setup
if reuse {
let stack = parameters.defaultStack
let path = PathProperties(parameters: parameters)
switch stack.transport {
case .quic(let options):
guard let instance = options.protocolInstance else {
throw NetworkError.posix(EINVAL)
}
let listenerLinkage = StreamListenerLinkage(reference: instance)
let flow = try StreamEndpointFlowProtocol(
identifier: String(self.identifier),
local: self.localEndpoint,
remote: self.remoteEndpoint,
parameters: self.parameters,
path: path,
context: self.parameters.context,
listenerProtocol: listenerLinkage
)
self.flowProtocol = .stream(flow)
options.setLogID(
prefix: "C",
parent: String(self.identifier),
protocolLogIDNumber: Int(self.identifier)
)
default:
Logger.connection.error("Unable to reuse on non-QUIC stack")
throw NetworkError.posix(ENOENT)
}
} else {
let context = self.context
let stack = parameters.defaultStack
let path = PathProperties(parameters: parameters)
let effectiveLocalEndpoint = localEndpoint
let effectiveRemoteEndpoint = remoteEndpoint
if let transport = stack.transport {
switch transport {
case .tcp(let options):
if case .custom(let linkOptions) = stack.link,
linkOptions.identifier == BridgeDatagramProtocol.identifier
{
guard let reference = TCPProtocol().newProtocolInstance(context: context) else {
throw NetworkError.posix(EINVAL)
}
options.setProtocolInstance(reference)
let linkage = OutboundStreamLinkage(reference: reference)
let flow = try StreamEndpointFlowProtocol(
identifier: String(self.identifier),
local: effectiveLocalEndpoint,
remote: effectiveRemoteEndpoint,
parameters: self.parameters,
path: path,
context: context,
lowerStreamProtocol: linkage
)
self.flowProtocol = .stream(flow)
options.setLogID(
prefix: "C",
parent: String(self.identifier),
protocolLogIDNumber: Int(self.identifier)
)
} else {
let socketReference = SocketStreamProtocol.instance(context: context)
options.setProtocolInstance(socketReference)
let linkage = OutboundStreamLinkage(reference: socketReference)
let flow = try StreamEndpointFlowProtocol(
identifier: String(self.identifier),
local: effectiveLocalEndpoint,
remote: effectiveRemoteEndpoint,
parameters: self.parameters,
path: path,
context: context,
lowerStreamProtocol: linkage
)
self.flowProtocol = .stream(flow)
options.setLogID(
prefix: "C",
parent: String(self.identifier),
protocolLogIDNumber: Int(self.identifier)
)
}
case .udp(let options):
if case .custom(let linkOptions) = stack.link,
linkOptions.identifier == BridgeDatagramProtocol.identifier
{
let udpReference = UDPProtocol.instance(context: context)
let ipReference = IPProtocol.instance(context: context)
options.setProtocolInstance(udpReference)
let linkage = OutboundDatagramLinkage(reference: udpReference)
let flow = try DatagramEndpointFlowProtocol(
identifier: String(self.identifier),
local: effectiveLocalEndpoint,
remote: self.remoteEndpoint,
parameters: self.parameters,
path: path,
context: context,
lowerDatagramProtocol: linkage
)
self.flowProtocol = .datagram(flow)
options.setLogID(
prefix: "C",
parent: String(self.identifier),
protocolLogIDNumber: Int(self.identifier)
)
try udpReference.attachLowerDatagramProtocol(
ipReference,
remote: effectiveRemoteEndpoint,
local: effectiveLocalEndpoint,
parameters: self.parameters,
path: path
)
let reference = BridgeDatagramProtocol.instance(context: context)
try ipReference.attachLowerDatagramProtocol(
reference,
remote: effectiveRemoteEndpoint,
local: effectiveLocalEndpoint,
parameters: self.parameters,
path: path
)
} else {
let socketReference = SocketDatagramProtocol.instance(context: context)
let linkage = OutboundDatagramLinkage(reference: socketReference)
let flow = try DatagramEndpointFlowProtocol(
identifier: String(self.identifier),
local: effectiveLocalEndpoint,
remote: self.remoteEndpoint,
parameters: self.parameters,
path: path,
context: context,
lowerDatagramProtocol: linkage
)
self.flowProtocol = .datagram(flow)
options.setLogID(
prefix: "C",
parent: String(self.identifier),
protocolLogIDNumber: Int(self.identifier)
)
}
#if !NETWORK_NO_SWIFT_QUIC
case .quic(let options):
let quicReference = QUICProtocol.instance(context: context)
self.quicConnectionReference = quicReference
options.setProtocolInstance(quicReference)
options.setLogID(
prefix: "C",
parent: String(self.identifier),
protocolLogIDNumber: Int(self.identifier)
)
let listenerLinkage = StreamListenerLinkage(reference: quicReference)
let flow = try StreamEndpointFlowProtocol(
identifier: String(self.identifier),
local: effectiveLocalEndpoint,
remote: self.remoteEndpoint,
parameters: self.parameters,
path: path,
context: context,
listenerProtocol: listenerLinkage
)
self.flowProtocol = .stream(flow)
if case .custom(let linkOptions) = stack.link,
linkOptions.identifier == BridgeDatagramProtocol.identifier
{
let udpReference = UDPProtocol.instance(context: context)
let ipReference = IPProtocol.instance(context: context)
try quicReference.attachLowerDatagramProtocolForNewPath(
udpReference,
remote: effectiveRemoteEndpoint,
local: effectiveLocalEndpoint,
parameters: self.parameters,
path: path
)
try udpReference.attachLowerDatagramProtocol(
ipReference,
remote: effectiveRemoteEndpoint,
local: effectiveLocalEndpoint,
parameters: self.parameters,
path: path
)
let reference = BridgeDatagramProtocol.instance(context: context)
try ipReference.attachLowerDatagramProtocol(
reference,
remote: effectiveRemoteEndpoint,
local: effectiveLocalEndpoint,
parameters: self.parameters,
path: path
)
} else {
let socketReference = SocketDatagramProtocol.instance(context: context)
try quicReference.attachLowerDatagramProtocolForNewPath(
socketReference,
remote: effectiveRemoteEndpoint,
local: effectiveLocalEndpoint,
parameters: self.parameters,
path: path
)
}
#endif
default:
Logger.connection.error("Unsupported transport protocol")
throw NetworkError.posix(EINVAL)
}
} else {
if stack.applicationProtocols.count == 0 {
if let link = stack.link {
switch link {
case .custom(let options):
// TODO: It'd be nice if we could do this w/o checking for specific protocols here,
// but we're not there quite yet
if options.identifier == BridgeStreamProtocol.identifier {
let reference = BridgeStreamProtocol.instance(context: context)
let linkage = OutboundStreamLinkage(reference: reference)
let flow = try StreamEndpointFlowProtocol(
identifier: String(self.identifier),
local: effectiveLocalEndpoint,
remote: self.remoteEndpoint,
parameters: self.parameters,
path: path,
context: context,
lowerStreamProtocol: linkage
)
self.flowProtocol = .stream(flow)
} else {
Logger.connection.error("Unknown link protocol")
throw NetworkError.posix(EINVAL)
}
default:
Logger.connection.error("Unknown link protocol")
throw NetworkError.posix(EINVAL)
}
} else {
Logger.connection.error("No link protocol")
throw NetworkError.posix(EINVAL)
}
} else if stack.applicationProtocols.count == 1 {
switch stack.applicationProtocols.first {
case .swiftTLS(let options):
guard let reference = TLSProtocol().newProtocolInstance(context: context) else {
throw NetworkError.posix(EINVAL)
}
options.setProtocolInstance(reference)
let linkage = OutboundStreamLinkage(reference: reference)
let flow = try StreamEndpointFlowProtocol(
identifier: String(self.identifier),
local: effectiveLocalEndpoint,
remote: effectiveRemoteEndpoint,
parameters: parameters,
path: path,
context: context,
lowerStreamProtocol: linkage
)
self.flowProtocol = .stream(flow)
options.setLogID(
prefix: "C",
parent: String(self.identifier),
protocolLogIDNumber: Int(self.identifier)
)
if let link = stack.link {
switch link {
case .custom(let options):
// TODO: It'd be nice if we could do this w/o checking for specific protocols here,
// but we're not there quite yet
if options.identifier == BridgeStreamProtocol.identifier {
let bridgeReference = BridgeStreamProtocol.instance(context: context)
try reference.attachLowerStreamProtocol(
bridgeReference,
remote: effectiveRemoteEndpoint,
local: effectiveLocalEndpoint,
parameters: self.parameters,
path: path
)
} else {
Logger.connection.error("Unknown link protocol")
throw NetworkError.posix(EINVAL)
}
default:
Logger.connection.error("Unknown link protocol")
throw NetworkError.posix(EINVAL)
}
}
default:
Logger.connection.error("Unsupported application protocol")
throw NetworkError.posix(EINVAL)
}
}
}
}
state = .preparing
switch self.flowProtocol {
case .stream(let flow):
flow.waitForDisconnected { error in self.state = .failed(error) }
flow.start(self.startCompleted)
case .datagram(let flow):
flow.waitForDisconnected { error in self.state = .failed(error) }
flow.start(self.startCompleted)
case .none:
Logger.connection.error("No current flow")
throw NetworkError.posix(EINVAL)
}
}
}