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1 | /** @file\r |
2 | #\r | |
3 | # Copyright (c) 2014, ARM Ltd. All rights reserved.<BR>\r | |
4 | #\r | |
5 | # This program and the accompanying materials\r | |
6 | # are licensed and made available under the terms and conditions of the BSD License\r | |
7 | # which accompanies this distribution. The full text of the license may be found at\r | |
8 | # http://opensource.org/licenses/bsd-license.php\r | |
9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | #\r | |
12 | #\r | |
13 | #**/\r | |
14 | \r | |
15 | #include <Protocol/AndroidFastbootTransport.h>\r | |
16 | #include <Protocol/Dhcp4.h>\r | |
17 | #include <Protocol/Tcp4.h>\r | |
18 | #include <Protocol/ServiceBinding.h>\r | |
19 | #include <Protocol/SimpleTextOut.h>\r | |
20 | \r | |
21 | #include <Library/BaseLib.h>\r | |
22 | #include <Library/BaseMemoryLib.h>\r | |
23 | #include <Library/DebugLib.h>\r | |
24 | #include <Library/MemoryAllocationLib.h>\r | |
25 | #include <Library/PrintLib.h>\r | |
26 | #include <Library/UefiBootServicesTableLib.h>\r | |
27 | #include <Library/UefiDriverEntryPoint.h>\r | |
28 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
29 | \r | |
30 | #include <Guid/Hostname.h>\r | |
31 | \r | |
32 | #define IP4_ADDR_TO_STRING(IpAddr, IpAddrString) UnicodeSPrint ( \\r | |
33 | IpAddrString, \\r | |
34 | 16 * 2, \\r | |
35 | L"%d.%d.%d.%d", \\r | |
36 | IpAddr.Addr[0], \\r | |
37 | IpAddr.Addr[1], \\r | |
38 | IpAddr.Addr[2], \\r | |
39 | IpAddr.Addr[3] \\r | |
40 | );\r | |
41 | \r | |
42 | // Fastboot says max packet size is 512, but FASTBOOT_TRANSPORT_PROTOCOL\r | |
43 | // doesn't place a limit on the size of buffers returned by Receive.\r | |
44 | // (This isn't actually a packet size - it's just the size of the buffers we\r | |
45 | // pass to the TCP driver to fill with received data.)\r | |
46 | // We can achieve much better performance by doing this in larger chunks.\r | |
47 | #define RX_FRAGMENT_SIZE 2048\r | |
48 | \r | |
49 | STATIC EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *mTextOut;\r | |
50 | \r | |
51 | STATIC EFI_TCP4_PROTOCOL *mTcpConnection;\r | |
52 | STATIC EFI_TCP4_PROTOCOL *mTcpListener;\r | |
53 | \r | |
54 | STATIC EFI_EVENT mReceiveEvent;\r | |
55 | \r | |
56 | STATIC EFI_SERVICE_BINDING_PROTOCOL *mTcpServiceBinding;\r | |
57 | STATIC EFI_HANDLE mTcpHandle = NULL;\r | |
58 | \r | |
59 | // We only ever use one IO token for receive and one for transmit. To save\r | |
60 | // repeatedly allocating and freeing, just allocate statically and re-use.\r | |
61 | #define NUM_RX_TOKENS 16\r | |
62 | #define TOKEN_NEXT(Index) (((Index) + 1) % NUM_RX_TOKENS)\r | |
63 | \r | |
64 | STATIC UINTN mNextSubmitIndex;\r | |
65 | STATIC UINTN mNextReceiveIndex;\r | |
66 | STATIC EFI_TCP4_IO_TOKEN mReceiveToken[NUM_RX_TOKENS];\r | |
67 | STATIC EFI_TCP4_RECEIVE_DATA mRxData[NUM_RX_TOKENS];\r | |
68 | STATIC EFI_TCP4_IO_TOKEN mTransmitToken;\r | |
69 | STATIC EFI_TCP4_TRANSMIT_DATA mTxData;\r | |
70 | // We also reuse the accept token\r | |
71 | STATIC EFI_TCP4_LISTEN_TOKEN mAcceptToken;\r | |
72 | // .. and the close token\r | |
73 | STATIC EFI_TCP4_CLOSE_TOKEN mCloseToken;\r | |
74 | \r | |
75 | // List type for queued received packets\r | |
76 | typedef struct _FASTBOOT_TCP_PACKET_LIST {\r | |
77 | LIST_ENTRY Link;\r | |
78 | VOID *Buffer;\r | |
79 | UINTN BufferSize;\r | |
80 | } FASTBOOT_TCP_PACKET_LIST;\r | |
81 | \r | |
82 | STATIC LIST_ENTRY mPacketListHead;\r | |
83 | \r | |
84 | STATIC\r | |
85 | VOID\r | |
86 | EFIAPI\r | |
87 | DataReceived (\r | |
88 | IN EFI_EVENT Event,\r | |
89 | IN VOID *Context\r | |
90 | );\r | |
91 | \r | |
92 | /*\r | |
93 | Helper function to set up a receive IO token and call Tcp->Receive\r | |
94 | */\r | |
95 | STATIC\r | |
96 | EFI_STATUS\r | |
97 | SubmitRecieveToken (\r | |
98 | VOID\r | |
99 | )\r | |
100 | {\r | |
101 | EFI_STATUS Status;\r | |
102 | VOID *FragmentBuffer;\r | |
103 | \r | |
104 | Status = EFI_SUCCESS;\r | |
105 | \r | |
106 | FragmentBuffer = AllocatePool (RX_FRAGMENT_SIZE);\r | |
107 | ASSERT (FragmentBuffer != NULL);\r | |
108 | if (FragmentBuffer == NULL) {\r | |
109 | DEBUG ((EFI_D_ERROR, "TCP Fastboot out of resources"));\r | |
110 | return EFI_OUT_OF_RESOURCES;\r | |
111 | }\r | |
112 | \r | |
113 | mRxData[mNextSubmitIndex].DataLength = RX_FRAGMENT_SIZE;\r | |
114 | mRxData[mNextSubmitIndex].FragmentTable[0].FragmentLength = RX_FRAGMENT_SIZE;\r | |
115 | mRxData[mNextSubmitIndex].FragmentTable[0].FragmentBuffer = FragmentBuffer;\r | |
116 | \r | |
117 | Status = mTcpConnection->Receive (mTcpConnection, &mReceiveToken[mNextSubmitIndex]);\r | |
118 | if (EFI_ERROR (Status)) {\r | |
119 | DEBUG ((EFI_D_ERROR, "TCP Receive: %r\n", Status));\r | |
120 | FreePool (FragmentBuffer);\r | |
121 | }\r | |
122 | \r | |
123 | mNextSubmitIndex = TOKEN_NEXT (mNextSubmitIndex);\r | |
124 | return Status;\r | |
125 | }\r | |
126 | \r | |
127 | /*\r | |
128 | Event notify function for when we have closed our TCP connection.\r | |
129 | We can now start listening for another connection.\r | |
130 | */\r | |
131 | STATIC\r | |
132 | VOID\r | |
133 | ConnectionClosed (\r | |
134 | IN EFI_EVENT Event,\r | |
135 | IN VOID *Context\r | |
136 | )\r | |
137 | {\r | |
138 | EFI_STATUS Status;\r | |
139 | \r | |
140 | // Possible bug in EDK2 TCP4 driver: closing a connection doesn't remove its\r | |
141 | // PCB from the list of live connections. Subsequent attempts to Configure()\r | |
142 | // a TCP instance with the same local port will fail with INVALID_PARAMETER.\r | |
143 | // Calling Configure with NULL is a workaround for this issue.\r | |
144 | Status = mTcpConnection->Configure (mTcpConnection, NULL);\r | |
145 | \r | |
146 | mTcpConnection = NULL;\r | |
147 | \r | |
148 | Status = mTcpListener->Accept (mTcpListener, &mAcceptToken);\r | |
149 | if (EFI_ERROR (Status)) {\r | |
150 | DEBUG ((EFI_D_ERROR, "TCP Accept: %r\n", Status));\r | |
151 | }\r | |
152 | }\r | |
153 | \r | |
154 | STATIC\r | |
155 | VOID\r | |
156 | CloseReceiveEvents (\r | |
157 | VOID\r | |
158 | )\r | |
159 | {\r | |
160 | UINTN Index;\r | |
161 | \r | |
162 | for (Index = 0; Index < NUM_RX_TOKENS; Index++) {\r | |
163 | gBS->CloseEvent (mReceiveToken[Index].CompletionToken.Event);\r | |
164 | }\r | |
165 | }\r | |
166 | \r | |
167 | /*\r | |
168 | Event notify function to be called when we receive TCP data.\r | |
169 | */\r | |
170 | STATIC\r | |
171 | VOID\r | |
172 | EFIAPI\r | |
173 | DataReceived (\r | |
174 | IN EFI_EVENT Event,\r | |
175 | IN VOID *Context\r | |
176 | )\r | |
177 | {\r | |
178 | EFI_STATUS Status;\r | |
179 | FASTBOOT_TCP_PACKET_LIST *NewEntry;\r | |
180 | EFI_TCP4_IO_TOKEN *ReceiveToken;\r | |
181 | \r | |
182 | ReceiveToken = &mReceiveToken[mNextReceiveIndex];\r | |
183 | \r | |
184 | Status = ReceiveToken->CompletionToken.Status;\r | |
185 | \r | |
186 | if (Status == EFI_CONNECTION_FIN) {\r | |
187 | //\r | |
188 | // Remote host closed connection. Close our end.\r | |
189 | //\r | |
190 | \r | |
191 | CloseReceiveEvents ();\r | |
192 | \r | |
193 | Status = mTcpConnection->Close (mTcpConnection, &mCloseToken);\r | |
194 | ASSERT_EFI_ERROR (Status);\r | |
195 | \r | |
196 | return;\r | |
197 | }\r | |
198 | \r | |
199 | //\r | |
200 | // Add an element to the receive queue\r | |
201 | //\r | |
202 | \r | |
203 | NewEntry = AllocatePool (sizeof (FASTBOOT_TCP_PACKET_LIST));\r | |
204 | if (NewEntry == NULL) {\r | |
205 | DEBUG ((EFI_D_ERROR, "TCP Fastboot: Out of resources\n"));\r | |
206 | return;\r | |
207 | }\r | |
208 | \r | |
209 | mNextReceiveIndex = TOKEN_NEXT (mNextReceiveIndex);\r | |
210 | \r | |
211 | if (!EFI_ERROR (Status)) {\r | |
212 | NewEntry->Buffer\r | |
213 | = ReceiveToken->Packet.RxData->FragmentTable[0].FragmentBuffer;\r | |
214 | NewEntry->BufferSize\r | |
215 | = ReceiveToken->Packet.RxData->FragmentTable[0].FragmentLength;\r | |
216 | \r | |
217 | // Prepare to receive more data\r | |
218 | SubmitRecieveToken();\r | |
219 | } else {\r | |
220 | // Fatal receive error. Put an entry with NULL in the queue, signifying\r | |
221 | // to return EFI_DEVICE_ERROR from TcpFastbootTransportReceive.\r | |
222 | NewEntry->Buffer = NULL;\r | |
223 | NewEntry->BufferSize = 0;\r | |
224 | \r | |
225 | DEBUG ((EFI_D_ERROR, "\nTCP Fastboot Receive error: %r\n", Status));\r | |
226 | }\r | |
227 | \r | |
228 | InsertTailList (&mPacketListHead, &NewEntry->Link);\r | |
229 | \r | |
230 | Status = gBS->SignalEvent (mReceiveEvent);\r | |
231 | ASSERT_EFI_ERROR (Status);\r | |
232 | }\r | |
233 | \r | |
234 | \r | |
235 | /*\r | |
236 | Event notify function to be called when we accept an incoming TCP connection.\r | |
237 | */\r | |
238 | STATIC\r | |
239 | VOID\r | |
240 | EFIAPI\r | |
241 | ConnectionAccepted (\r | |
242 | IN EFI_EVENT Event,\r | |
243 | IN VOID *Context\r | |
244 | )\r | |
245 | {\r | |
246 | EFI_TCP4_LISTEN_TOKEN *AcceptToken;\r | |
247 | EFI_STATUS Status;\r | |
248 | UINTN Index;\r | |
249 | \r | |
250 | AcceptToken = (EFI_TCP4_LISTEN_TOKEN *) Context;\r | |
251 | Status = AcceptToken->CompletionToken.Status;\r | |
252 | \r | |
253 | if (EFI_ERROR (Status)) {\r | |
254 | DEBUG ((EFI_D_ERROR, "TCP Fastboot: Connection Error: %r\n", Status));\r | |
255 | return;\r | |
256 | }\r | |
257 | DEBUG ((EFI_D_ERROR, "TCP Fastboot: Connection Received.\n"));\r | |
258 | \r | |
259 | //\r | |
260 | // Accepting a new TCP connection creates a new instance of the TCP protocol.\r | |
261 | // Open it and prepare to receive on it.\r | |
262 | //\r | |
263 | \r | |
264 | Status = gBS->OpenProtocol (\r | |
265 | AcceptToken->NewChildHandle,\r | |
266 | &gEfiTcp4ProtocolGuid,\r | |
267 | (VOID **) &mTcpConnection,\r | |
268 | gImageHandle,\r | |
269 | NULL,\r | |
270 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
271 | );\r | |
272 | if (EFI_ERROR (Status)) {\r | |
273 | DEBUG ((EFI_D_ERROR, "Open TCP Connection: %r\n", Status));\r | |
274 | return;\r | |
275 | }\r | |
276 | \r | |
277 | mNextSubmitIndex = 0;\r | |
278 | mNextReceiveIndex = 0;\r | |
279 | \r | |
280 | for (Index = 0; Index < NUM_RX_TOKENS; Index++) {\r | |
281 | Status = gBS->CreateEvent (\r | |
282 | EVT_NOTIFY_SIGNAL,\r | |
283 | TPL_CALLBACK,\r | |
284 | DataReceived,\r | |
285 | NULL,\r | |
286 | &(mReceiveToken[Index].CompletionToken.Event)\r | |
287 | );\r | |
288 | ASSERT_EFI_ERROR (Status);\r | |
289 | }\r | |
290 | \r | |
291 | for (Index = 0; Index < NUM_RX_TOKENS; Index++) {\r | |
292 | SubmitRecieveToken();\r | |
293 | }\r | |
294 | }\r | |
295 | \r | |
296 | /*\r | |
297 | Set up TCP Fastboot transport: Configure the network device via DHCP then\r | |
298 | start waiting for a TCP connection on the Fastboot port.\r | |
299 | */\r | |
300 | EFI_STATUS\r | |
301 | TcpFastbootTransportStart (\r | |
302 | EFI_EVENT ReceiveEvent\r | |
303 | )\r | |
304 | {\r | |
305 | EFI_STATUS Status;\r | |
306 | EFI_HANDLE NetDeviceHandle;\r | |
307 | EFI_HANDLE *HandleBuffer;\r | |
308 | EFI_IP4_MODE_DATA Ip4ModeData;\r | |
309 | UINTN NumHandles;\r | |
310 | UINTN HostnameSize = 256;\r | |
311 | CHAR8 Hostname[256];\r | |
312 | CHAR16 HostnameUnicode[256] = L"<no hostname>";\r | |
313 | CHAR16 IpAddrString[16];\r | |
314 | UINTN Index;\r | |
315 | \r | |
316 | EFI_TCP4_CONFIG_DATA TcpConfigData = {\r | |
317 | 0x00, // IPv4 Type of Service\r | |
318 | 255, // IPv4 Time to Live\r | |
319 | { // AccessPoint:\r | |
320 | TRUE, // Use default address\r | |
b0fdce95 OM |
321 | { {0, 0, 0, 0} }, // IP Address (ignored - use default)\r |
322 | { {0, 0, 0, 0} }, // Subnet mask (ignored - use default)\r | |
4d6e1e5a | 323 | FixedPcdGet32 (PcdAndroidFastbootTcpPort), // Station port\r |
b0fdce95 | 324 | { {0, 0, 0, 0} }, // Remote address: accept any\r |
4d6e1e5a BJ |
325 | 0, // Remote Port: accept any\r |
326 | FALSE // ActiveFlag: be a "server"\r | |
327 | },\r | |
328 | NULL // Default advanced TCP options\r | |
329 | };\r | |
330 | \r | |
331 | mReceiveEvent = ReceiveEvent;\r | |
332 | InitializeListHead (&mPacketListHead);\r | |
333 | \r | |
334 | mTextOut->OutputString (mTextOut, L"Initialising TCP Fastboot transport...\r\n");\r | |
335 | \r | |
336 | //\r | |
337 | // Open a passive TCP instance\r | |
338 | //\r | |
339 | \r | |
340 | Status = gBS->LocateHandleBuffer (\r | |
341 | ByProtocol,\r | |
342 | &gEfiTcp4ServiceBindingProtocolGuid,\r | |
343 | NULL,\r | |
344 | &NumHandles,\r | |
345 | &HandleBuffer\r | |
346 | );\r | |
347 | if (EFI_ERROR (Status)) {\r | |
348 | DEBUG ((EFI_D_ERROR, "Find TCP Service Binding: %r\n", Status));\r | |
349 | return Status;\r | |
350 | }\r | |
351 | \r | |
352 | // We just use the first network device\r | |
353 | NetDeviceHandle = HandleBuffer[0];\r | |
354 | \r | |
355 | Status = gBS->OpenProtocol (\r | |
356 | NetDeviceHandle,\r | |
357 | &gEfiTcp4ServiceBindingProtocolGuid,\r | |
358 | (VOID **) &mTcpServiceBinding,\r | |
359 | gImageHandle,\r | |
360 | NULL,\r | |
361 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
362 | );\r | |
363 | if (EFI_ERROR (Status)) {\r | |
364 | DEBUG ((EFI_D_ERROR, "Open TCP Service Binding: %r\n", Status));\r | |
365 | return Status;\r | |
366 | }\r | |
367 | \r | |
368 | Status = mTcpServiceBinding->CreateChild (mTcpServiceBinding, &mTcpHandle);\r | |
369 | if (EFI_ERROR (Status)) {\r | |
370 | DEBUG ((EFI_D_ERROR, "TCP ServiceBinding Create: %r\n", Status));\r | |
371 | return Status;\r | |
372 | }\r | |
373 | \r | |
374 | Status = gBS->OpenProtocol (\r | |
375 | mTcpHandle,\r | |
376 | &gEfiTcp4ProtocolGuid,\r | |
377 | (VOID **) &mTcpListener,\r | |
378 | gImageHandle,\r | |
379 | NULL,\r | |
380 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
381 | );\r | |
382 | if (EFI_ERROR (Status)) {\r | |
383 | DEBUG ((EFI_D_ERROR, "Open TCP Protocol: %r\n", Status));\r | |
384 | }\r | |
385 | \r | |
386 | //\r | |
387 | // Set up re-usable tokens\r | |
388 | //\r | |
389 | \r | |
390 | for (Index = 0; Index < NUM_RX_TOKENS; Index++) {\r | |
391 | mRxData[Index].UrgentFlag = FALSE;\r | |
392 | mRxData[Index].FragmentCount = 1;\r | |
393 | mReceiveToken[Index].Packet.RxData = &mRxData[Index];\r | |
394 | }\r | |
395 | \r | |
396 | mTxData.Push = TRUE;\r | |
397 | mTxData.Urgent = FALSE;\r | |
398 | mTxData.FragmentCount = 1;\r | |
399 | mTransmitToken.Packet.TxData = &mTxData;\r | |
400 | \r | |
401 | Status = gBS->CreateEvent (\r | |
402 | EVT_NOTIFY_SIGNAL,\r | |
403 | TPL_CALLBACK,\r | |
404 | ConnectionAccepted,\r | |
405 | &mAcceptToken,\r | |
406 | &mAcceptToken.CompletionToken.Event\r | |
407 | );\r | |
408 | ASSERT_EFI_ERROR (Status);\r | |
409 | \r | |
410 | Status = gBS->CreateEvent (\r | |
411 | EVT_NOTIFY_SIGNAL,\r | |
412 | TPL_CALLBACK,\r | |
413 | ConnectionClosed,\r | |
414 | &mCloseToken,\r | |
415 | &mCloseToken.CompletionToken.Event\r | |
416 | );\r | |
417 | ASSERT_EFI_ERROR (Status);\r | |
418 | \r | |
419 | //\r | |
420 | // Configure the TCP instance\r | |
421 | //\r | |
422 | \r | |
423 | Status = mTcpListener->Configure (mTcpListener, &TcpConfigData);\r | |
424 | if (Status == EFI_NO_MAPPING) {\r | |
425 | // Wait until the IP configuration process (probably DHCP) has finished\r | |
426 | do {\r | |
427 | Status = mTcpListener->GetModeData (mTcpListener,\r | |
428 | NULL, NULL,\r | |
429 | &Ip4ModeData,\r | |
430 | NULL, NULL\r | |
431 | );\r | |
432 | ASSERT_EFI_ERROR (Status);\r | |
433 | } while (!Ip4ModeData.IsConfigured);\r | |
434 | Status = mTcpListener->Configure (mTcpListener, &TcpConfigData);\r | |
435 | } else if (EFI_ERROR (Status)) {\r | |
436 | DEBUG ((EFI_D_ERROR, "TCP Configure: %r\n", Status));\r | |
437 | return Status;\r | |
438 | }\r | |
439 | \r | |
440 | //\r | |
441 | // Tell the user our address and hostname\r | |
442 | //\r | |
443 | IP4_ADDR_TO_STRING (Ip4ModeData.ConfigData.StationAddress, IpAddrString);\r | |
444 | \r | |
445 | // Look up hostname\r | |
446 | Status = gRT->GetVariable (\r | |
447 | L"Hostname",\r | |
448 | &gEfiHostnameVariableGuid,\r | |
449 | NULL,\r | |
450 | &HostnameSize,\r | |
451 | &Hostname\r | |
452 | );\r | |
453 | if (!EFI_ERROR (Status) && HostnameSize != 0) {\r | |
454 | AsciiStrToUnicodeStr (Hostname, HostnameUnicode);\r | |
455 | }\r | |
456 | \r | |
457 | // Hostname variable is not null-terminated.\r | |
458 | Hostname[HostnameSize] = L'\0';\r | |
459 | \r | |
460 | mTextOut->OutputString (mTextOut, L"TCP Fastboot transport configured.");\r | |
461 | mTextOut->OutputString (mTextOut, L"\r\nIP address: ");\r | |
462 | mTextOut->OutputString (mTextOut ,IpAddrString);\r | |
463 | mTextOut->OutputString (mTextOut, L"\r\n");\r | |
464 | mTextOut->OutputString (mTextOut, L"\r\nhostname: ");\r | |
465 | mTextOut->OutputString (mTextOut, HostnameUnicode);\r | |
466 | mTextOut->OutputString (mTextOut, L"\r\n");\r | |
467 | \r | |
468 | //\r | |
469 | // Start listening for a connection\r | |
470 | //\r | |
471 | \r | |
472 | Status = mTcpListener->Accept (mTcpListener, &mAcceptToken);\r | |
473 | if (EFI_ERROR (Status)) {\r | |
474 | DEBUG ((EFI_D_ERROR, "TCP Accept: %r\n", Status));\r | |
475 | return Status;\r | |
476 | }\r | |
477 | \r | |
478 | mTextOut->OutputString (mTextOut, L"TCP Fastboot transport initialised.\r\n");\r | |
479 | \r | |
480 | FreePool (HandleBuffer);\r | |
481 | \r | |
482 | return EFI_SUCCESS;\r | |
483 | }\r | |
484 | \r | |
485 | EFI_STATUS\r | |
486 | TcpFastbootTransportStop (\r | |
487 | VOID\r | |
488 | )\r | |
489 | {\r | |
490 | EFI_TCP4_CLOSE_TOKEN CloseToken;\r | |
491 | EFI_STATUS Status;\r | |
492 | UINTN EventIndex;\r | |
493 | FASTBOOT_TCP_PACKET_LIST *Entry;\r | |
494 | FASTBOOT_TCP_PACKET_LIST *NextEntry;\r | |
495 | \r | |
496 | // Close any existing TCP connection, blocking until it's done.\r | |
497 | if (mTcpConnection != NULL) {\r | |
498 | CloseReceiveEvents ();\r | |
499 | \r | |
500 | CloseToken.AbortOnClose = FALSE;\r | |
501 | \r | |
502 | Status = gBS->CreateEvent (0, 0, NULL, NULL, &CloseToken.CompletionToken.Event);\r | |
503 | ASSERT_EFI_ERROR (Status);\r | |
504 | \r | |
505 | Status = mTcpConnection->Close (mTcpConnection, &CloseToken);\r | |
506 | ASSERT_EFI_ERROR (Status);\r | |
507 | \r | |
508 | Status = gBS->WaitForEvent (\r | |
509 | 1,\r | |
510 | &CloseToken.CompletionToken.Event,\r | |
511 | &EventIndex\r | |
512 | );\r | |
513 | ASSERT_EFI_ERROR (Status);\r | |
514 | \r | |
515 | ASSERT_EFI_ERROR (CloseToken.CompletionToken.Status);\r | |
516 | \r | |
517 | // Possible bug in EDK2 TCP4 driver: closing a connection doesn't remove its\r | |
518 | // PCB from the list of live connections. Subsequent attempts to Configure()\r | |
519 | // a TCP instance with the same local port will fail with INVALID_PARAMETER.\r | |
520 | // Calling Configure with NULL is a workaround for this issue.\r | |
521 | Status = mTcpConnection->Configure (mTcpConnection, NULL);\r | |
522 | ASSERT_EFI_ERROR (Status);\r | |
523 | }\r | |
524 | \r | |
525 | \r | |
526 | gBS->CloseEvent (mAcceptToken.CompletionToken.Event);\r | |
527 | \r | |
528 | // Stop listening for connections.\r | |
529 | // Ideally we would do this with Cancel, but it isn't implemented by EDK2.\r | |
530 | // So we just "reset this TCPv4 instance brutally".\r | |
531 | Status = mTcpListener->Configure (mTcpListener, NULL);\r | |
532 | ASSERT_EFI_ERROR (Status);\r | |
533 | \r | |
534 | Status = mTcpServiceBinding->DestroyChild (mTcpServiceBinding, &mTcpHandle);\r | |
535 | \r | |
536 | // Free any data the user didn't pick up\r | |
537 | Entry = (FASTBOOT_TCP_PACKET_LIST *) GetFirstNode (&mPacketListHead);\r | |
538 | while (!IsNull (&mPacketListHead, &Entry->Link)) {\r | |
539 | NextEntry = (FASTBOOT_TCP_PACKET_LIST *) GetNextNode (&mPacketListHead, &Entry->Link);\r | |
540 | \r | |
541 | RemoveEntryList (&Entry->Link);\r | |
542 | if (Entry->Buffer) {\r | |
543 | FreePool (Entry->Buffer);\r | |
544 | }\r | |
545 | FreePool (Entry);\r | |
546 | \r | |
547 | Entry = NextEntry;\r | |
548 | }\r | |
549 | \r | |
550 | return EFI_SUCCESS;\r | |
551 | }\r | |
552 | \r | |
553 | /*\r | |
554 | Event notify function for when data has been sent. Free resources and report\r | |
555 | errors.\r | |
556 | Context should point to the transmit IO token passed to\r | |
557 | TcpConnection->Transmit.\r | |
558 | */\r | |
559 | STATIC\r | |
560 | VOID\r | |
561 | DataSent (\r | |
562 | EFI_EVENT Event,\r | |
563 | VOID *Context\r | |
564 | )\r | |
565 | {\r | |
566 | EFI_STATUS Status;\r | |
567 | \r | |
568 | Status = mTransmitToken.CompletionToken.Status;\r | |
569 | if (EFI_ERROR (Status)) {\r | |
570 | DEBUG ((EFI_D_ERROR, "TCP Fastboot transmit result: %r\n", Status));\r | |
571 | gBS->SignalEvent (*(EFI_EVENT *) Context);\r | |
572 | }\r | |
573 | \r | |
574 | FreePool (mTransmitToken.Packet.TxData->FragmentTable[0].FragmentBuffer);\r | |
575 | }\r | |
576 | \r | |
577 | EFI_STATUS\r | |
578 | TcpFastbootTransportSend (\r | |
579 | IN UINTN BufferSize,\r | |
580 | IN CONST VOID *Buffer,\r | |
581 | IN EFI_EVENT *FatalErrorEvent\r | |
582 | )\r | |
583 | {\r | |
584 | EFI_STATUS Status;\r | |
585 | \r | |
586 | if (BufferSize > 512) {\r | |
587 | return EFI_INVALID_PARAMETER;\r | |
588 | }\r | |
589 | \r | |
590 | //\r | |
591 | // Build transmit IO token\r | |
592 | //\r | |
593 | \r | |
594 | // Create an event so we are notified when a transmission is complete.\r | |
595 | // We use this to free resources and report errors.\r | |
596 | Status = gBS->CreateEvent (\r | |
597 | EVT_NOTIFY_SIGNAL,\r | |
598 | TPL_CALLBACK,\r | |
599 | DataSent,\r | |
600 | FatalErrorEvent,\r | |
601 | &mTransmitToken.CompletionToken.Event\r | |
602 | );\r | |
603 | ASSERT_EFI_ERROR (Status);\r | |
604 | \r | |
605 | mTxData.DataLength = BufferSize;\r | |
606 | \r | |
607 | mTxData.FragmentTable[0].FragmentLength = BufferSize;\r | |
608 | mTxData.FragmentTable[0].FragmentBuffer = AllocateCopyPool (\r | |
609 | BufferSize,\r | |
610 | Buffer\r | |
611 | );\r | |
612 | \r | |
613 | Status = mTcpConnection->Transmit (mTcpConnection, &mTransmitToken);\r | |
614 | if (EFI_ERROR (Status)) {\r | |
615 | DEBUG ((EFI_D_ERROR, "TCP Transmit: %r\n", Status));\r | |
616 | return Status;\r | |
617 | }\r | |
618 | \r | |
619 | return EFI_SUCCESS;\r | |
620 | }\r | |
621 | \r | |
622 | \r | |
623 | EFI_STATUS\r | |
624 | TcpFastbootTransportReceive (\r | |
625 | OUT UINTN *BufferSize,\r | |
626 | OUT VOID **Buffer\r | |
627 | )\r | |
628 | {\r | |
629 | FASTBOOT_TCP_PACKET_LIST *Entry;\r | |
630 | \r | |
631 | if (IsListEmpty (&mPacketListHead)) {\r | |
632 | return EFI_NOT_READY;\r | |
633 | }\r | |
634 | \r | |
635 | Entry = (FASTBOOT_TCP_PACKET_LIST *) GetFirstNode (&mPacketListHead);\r | |
636 | \r | |
637 | if (Entry->Buffer == NULL) {\r | |
638 | // There was an error receiving this packet.\r | |
639 | return EFI_DEVICE_ERROR;\r | |
640 | }\r | |
641 | \r | |
642 | *Buffer = Entry->Buffer;\r | |
643 | *BufferSize = Entry->BufferSize;\r | |
644 | \r | |
645 | RemoveEntryList (&Entry->Link);\r | |
646 | FreePool (Entry);\r | |
647 | \r | |
648 | return EFI_SUCCESS;\r | |
649 | }\r | |
650 | \r | |
651 | FASTBOOT_TRANSPORT_PROTOCOL mTransportProtocol = {\r | |
652 | TcpFastbootTransportStart,\r | |
653 | TcpFastbootTransportStop,\r | |
654 | TcpFastbootTransportSend,\r | |
655 | TcpFastbootTransportReceive\r | |
656 | };\r | |
657 | \r | |
658 | EFI_STATUS\r | |
659 | TcpFastbootTransportEntryPoint (\r | |
660 | IN EFI_HANDLE ImageHandle,\r | |
661 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
662 | )\r | |
663 | {\r | |
664 | EFI_STATUS Status;\r | |
665 | \r | |
666 | \r | |
667 | Status = gBS->LocateProtocol(\r | |
668 | &gEfiSimpleTextOutProtocolGuid,\r | |
669 | NULL,\r | |
670 | (VOID **) &mTextOut\r | |
671 | );\r | |
672 | if (EFI_ERROR (Status)) {\r | |
673 | DEBUG ((EFI_D_ERROR, "Fastboot: Open Text Output Protocol: %r\n", Status));\r | |
674 | return Status;\r | |
675 | }\r | |
676 | \r | |
677 | Status = gBS->InstallProtocolInterface (\r | |
678 | &ImageHandle,\r | |
679 | &gAndroidFastbootTransportProtocolGuid,\r | |
680 | EFI_NATIVE_INTERFACE,\r | |
681 | &mTransportProtocol\r | |
682 | );\r | |
683 | if (EFI_ERROR (Status)) {\r | |
684 | DEBUG ((EFI_D_ERROR, "Fastboot: Install transport Protocol: %r\n", Status));\r | |
685 | }\r | |
686 | \r | |
687 | return Status;\r | |
688 | }\r |