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a3bcde70
HT		 1/** @file\r
2 This implementation of EFI_PXE_BASE_CODE_PROTOCOL and EFI_LOAD_FILE_PROTOCOL.\r
3\r
6f2f4116 4 Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>\r
a3bcde70
HT		 5\r
6 This program and the accompanying materials\r
7 are licensed and made available under the terms and conditions of the BSD License\r
8 which accompanies this distribution. The full text of the license may be found at\r
9 http://opensource.org/licenses/bsd-license.php.\r
10\r
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
13\r
14**/\r
15\r
16#include "PxeBcImpl.h"\r
17\r
18\r
19/**\r
20 Enables the use of the PXE Base Code Protocol functions.\r
21\r
22 This function enables the use of the PXE Base Code Protocol functions. If the\r
23 Started field of the EFI_PXE_BASE_CODE_MODE structure is already TRUE, then\r
24 EFI_ALREADY_STARTED will be returned. If UseIpv6 is TRUE, then IPv6 formatted\r
25 addresses will be used in this session. If UseIpv6 is FALSE, then IPv4 formatted\r
26 addresses will be used in this session. If UseIpv6 is TRUE, and the Ipv6Supported\r
27 field of the EFI_PXE_BASE_CODE_MODE structure is FALSE, then EFI_UNSUPPORTED will\r
28 be returned. If there is not enough memory or other resources to start the PXE\r
29 Base Code Protocol, then EFI_OUT_OF_RESOURCES will be returned. Otherwise, the\r
30 PXE Base Code Protocol will be started.\r
31\r
32 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
33 @param[in] UseIpv6 Specifies the type of IP addresses that are to be\r
34 used during the session that is being started.\r
35 Set to TRUE for IPv6, and FALSE for IPv4.\r
36\r
37 @retval EFI_SUCCESS The PXE Base Code Protocol was started.\r
38 @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
39 @retval EFI_UNSUPPORTED UseIpv6 is TRUE, but the Ipv6Supported field of the\r
40 EFI_PXE_BASE_CODE_MODE structure is FALSE.\r
41 @retval EFI_ALREADY_STARTED The PXE Base Code Protocol is already in the started state.\r
42 @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid\r
43 EFI_PXE_BASE_CODE_PROTOCOL structure.\r
44 @retval EFI_OUT_OF_RESOURCES Could not allocate enough memory or other resources to start the\r
45 PXE Base Code Protocol.\r
46\r
47**/\r
48EFI_STATUS\r
49EFIAPI\r
50EfiPxeBcStart (\r
51 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
52 IN BOOLEAN UseIpv6\r
53 )\r
54{\r
55 PXEBC_PRIVATE_DATA *Private;\r
56 EFI_PXE_BASE_CODE_MODE *Mode;\r
57 UINTN Index;\r
58 EFI_STATUS Status;\r
59\r
60 if (This == NULL) {\r
61 return EFI_INVALID_PARAMETER;\r
62 }\r
63\r
64 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
65 Mode = Private->PxeBc.Mode;\r
66\r
67 if (Mode->Started) {\r
68 return EFI_ALREADY_STARTED;\r
69 }\r
70\r
71 //\r
72 // Detect whether using IPv6 or not, and set it into mode data.\r
73 //\r
74 if (UseIpv6 && Mode->Ipv6Available && Mode->Ipv6Supported && Private->Ip6Nic != NULL) {\r
75 Mode->UsingIpv6 = TRUE;\r
76 } else if (!UseIpv6 && Private->Ip4Nic != NULL) {\r
77 Mode->UsingIpv6 = FALSE;\r
78 } else {\r
79 return EFI_UNSUPPORTED;\r
80 }\r
81\r
82 if (Mode->UsingIpv6) {\r
83 AsciiPrint ("\n>>Start PXE over IPv6");\r
ce280355 84 //\r
85 // Configure udp6 instance to receive data.\r
86 //\r
87 Status = Private->Udp6Read->Configure (\r
88 Private->Udp6Read,\r
89 &Private->Udp6CfgData\r
90 );\r
91 if (EFI_ERROR (Status)) {\r
92 goto ON_ERROR;\r
93 }\r
94 \r
a3bcde70
HT		 95 //\r
96 // Configure block size for TFTP as a default value to handle all link layers.\r
97 //\r
98 Private->BlockSize = (UINTN) (Private->Ip6MaxPacketSize -\r
99 PXEBC_DEFAULT_UDP_OVERHEAD_SIZE - PXEBC_DEFAULT_TFTP_OVERHEAD_SIZE);\r
100\r
101 //\r
102 // PXE over IPv6 starts here, initialize the fields and list header.\r
103 //\r
104 Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;\r
632dcfd6
FS		 105 Private->ProxyOffer.Dhcp6.Packet.Offer.Size = PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE;\r
106 Private->DhcpAck.Dhcp6.Packet.Ack.Size = PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE;\r
107 Private->PxeReply.Dhcp6.Packet.Ack.Size = PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE;\r
a3bcde70
HT		 108\r
109 for (Index = 0; Index < PXEBC_OFFER_MAX_NUM; Index++) {\r
632dcfd6 110 Private->OfferBuffer[Index].Dhcp6.Packet.Offer.Size = PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE;\r
a3bcde70
HT		 111 }\r
112\r
113 //\r
114 // Create event and set status for token to capture ICMP6 error message.\r
115 //\r
116 Private->Icmp6Token.Status = EFI_NOT_READY;\r
117 Status = gBS->CreateEvent (\r
118 EVT_NOTIFY_SIGNAL,\r
119 TPL_NOTIFY,\r
120 PxeBcIcmp6ErrorUpdate,\r
121 Private,\r
122 &Private->Icmp6Token.Event\r
123 );\r
124 if (EFI_ERROR (Status)) {\r
125 goto ON_ERROR;\r
126 }\r
ae97201c
FS		 127\r
128 //\r
129 // Set Ip6 policy to Automatic to start the IP6 router discovery.\r
130 //\r
131 Status = PxeBcSetIp6Policy (Private);\r
132 if (EFI_ERROR (Status)) {\r
133 goto ON_ERROR;\r
134 }\r
a3bcde70
HT		 135 } else {\r
136 AsciiPrint ("\n>>Start PXE over IPv4");\r
ce280355 137 //\r
138 // Configure udp4 instance to receive data.\r
139 //\r
140 Status = Private->Udp4Read->Configure (\r
141 Private->Udp4Read,\r
142 &Private->Udp4CfgData\r
143 );\r
144 if (EFI_ERROR (Status)) {\r
145 goto ON_ERROR;\r
146 }\r
147 \r
a3bcde70
HT		 148 //\r
149 // Configure block size for TFTP as a default value to handle all link layers.\r
150 //\r
151 Private->BlockSize = (UINTN) (Private->Ip4MaxPacketSize -\r
152 PXEBC_DEFAULT_UDP_OVERHEAD_SIZE - PXEBC_DEFAULT_TFTP_OVERHEAD_SIZE);\r
153\r
154 //\r
155 // PXE over IPv4 starts here, initialize the fields.\r
156 //\r
632dcfd6
FS		 157 Private->ProxyOffer.Dhcp4.Packet.Offer.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;\r
158 Private->DhcpAck.Dhcp4.Packet.Ack.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;\r
159 Private->PxeReply.Dhcp4.Packet.Ack.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;\r
a3bcde70
HT		 160\r
161 for (Index = 0; Index < PXEBC_OFFER_MAX_NUM; Index++) {\r
632dcfd6 162 Private->OfferBuffer[Index].Dhcp4.Packet.Offer.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;\r
a3bcde70
HT		 163 }\r
164\r
165 PxeBcSeedDhcp4Packet (&Private->SeedPacket, Private->Udp4Read);\r
166\r
167 //\r
168 // Create the event for Arp cache update.\r
169 //\r
170 Status = gBS->CreateEvent (\r
171 EVT_TIMER | EVT_NOTIFY_SIGNAL,\r
172 TPL_CALLBACK,\r
173 PxeBcArpCacheUpdate,\r
174 Private,\r
175 &Private->ArpUpdateEvent\r
176 );\r
177 if (EFI_ERROR (Status)) {\r
178 goto ON_ERROR;\r
179 }\r
180\r
181 //\r
182 // Start a periodic timer by second to update Arp cache.\r
183 //\r
184 Status = gBS->SetTimer (\r
185 Private->ArpUpdateEvent,\r
186 TimerPeriodic,\r
187 TICKS_PER_SECOND\r
188 );\r
189 if (EFI_ERROR (Status)) {\r
190 goto ON_ERROR;\r
191 }\r
192\r
193 //\r
194 // Create event and set status for token to capture ICMP error message.\r
195 //\r
196 Private->Icmp6Token.Status = EFI_NOT_READY;\r
197 Status = gBS->CreateEvent (\r
198 EVT_NOTIFY_SIGNAL,\r
199 TPL_NOTIFY,\r
200 PxeBcIcmpErrorUpdate,\r
201 Private,\r
202 &Private->IcmpToken.Event\r
203 );\r
204 if (EFI_ERROR (Status)) {\r
205 goto ON_ERROR;\r
206 }\r
ac99793b
ZL		 207\r
208 //\r
209 //DHCP4 service allows only one of its children to be configured in \r
210 //the active state, If the DHCP4 D.O.R.A started by IP4 auto \r
211 //configuration and has not been completed, the Dhcp4 state machine \r
212 //will not be in the right state for the PXE to start a new round D.O.R.A. \r
213 //so we need to switch it's policy to static.\r
214 //\r
215 Status = PxeBcSetIp4Policy (Private);\r
216 if (EFI_ERROR (Status)) {\r
217 goto ON_ERROR;\r
218 }\r
a3bcde70
HT		 219 }\r
220\r
221 //\r
222 // If PcdTftpBlockSize is set to non-zero, override the default value.\r
223 //\r
224 if (PcdGet64 (PcdTftpBlockSize) != 0) {\r
225 Private->BlockSize = (UINTN) PcdGet64 (PcdTftpBlockSize);\r
226 }\r
227\r
228 //\r
229 // Create event for UdpRead/UdpWrite timeout since they are both blocking API.\r
230 //\r
231 Status = gBS->CreateEvent (\r
232 EVT_TIMER,\r
233 TPL_CALLBACK,\r
234 NULL,\r
235 NULL,\r
236 &Private->UdpTimeOutEvent\r
237 );\r
238 if (EFI_ERROR (Status)) {\r
239 goto ON_ERROR;\r
240 }\r
241\r
242 Private->IsAddressOk = FALSE;\r
243 Mode->Started = TRUE;\r
244\r
245 return EFI_SUCCESS;\r
246\r
247ON_ERROR:\r
248 if (Mode->UsingIpv6) {\r
249 if (Private->Icmp6Token.Event != NULL) {\r
250 gBS->CloseEvent (Private->Icmp6Token.Event);\r
251 Private->Icmp6Token.Event = NULL;\r
252 }\r
253 Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r
254 Private->Ip6->Configure (Private->Ip6, NULL);\r
255 } else {\r
256 if (Private->ArpUpdateEvent != NULL) {\r
257 gBS->CloseEvent (Private->ArpUpdateEvent);\r
258 Private->ArpUpdateEvent = NULL;\r
259 }\r
260 if (Private->IcmpToken.Event != NULL) {\r
261 gBS->CloseEvent (Private->IcmpToken.Event);\r
262 Private->IcmpToken.Event = NULL;\r
263 }\r
264 Private->Udp4Read->Configure (Private->Udp4Read, NULL);\r
265 Private->Ip4->Configure (Private->Ip4, NULL);\r
266 }\r
267 return Status;\r
268}\r
269\r
270\r
271/**\r
272 Disable the use of the PXE Base Code Protocol functions.\r
273\r
274 This function stops all activity on the network device. All the resources allocated\r
275 in Start() are released, the Started field of the EFI_PXE_BASE_CODE_MODE structure is\r
276 set to FALSE, and EFI_SUCCESS is returned. If the Started field of the EFI_PXE_BASE_CODE_MODE\r
277 structure is already FALSE, then EFI_NOT_STARTED will be returned.\r
278\r
279 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
280\r
281 @retval EFI_SUCCESS The PXE Base Code Protocol was stopped.\r
282 @retval EFI_NOT_STARTED The PXE Base Code Protocol is already in the stopped state.\r
283 @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid\r
284 EFI_PXE_BASE_CODE_PROTOCOL structure.\r
285 @retval Others\r
286\r
287**/\r
288EFI_STATUS\r
289EFIAPI\r
290EfiPxeBcStop (\r
291 IN EFI_PXE_BASE_CODE_PROTOCOL *This\r
292 )\r
293{\r
294 PXEBC_PRIVATE_DATA *Private;\r
295 EFI_PXE_BASE_CODE_MODE *Mode;\r
296 BOOLEAN Ipv6Supported;\r
297 BOOLEAN Ipv6Available;\r
298\r
299 if (This == NULL) {\r
300 return EFI_INVALID_PARAMETER;\r
301 }\r
302\r
303 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
304 Mode = Private->PxeBc.Mode;\r
305 Ipv6Supported = Mode->Ipv6Supported;\r
306 Ipv6Available = Mode->Ipv6Available;\r
307\r
308 if (!Mode->Started) {\r
309 return EFI_NOT_STARTED;\r
310 }\r
311\r
312 if (Mode->UsingIpv6) {\r
313 //\r
314 // Configure all the instances for IPv6 as NULL.\r
315 //\r
316 ZeroMem (&Private->Udp6CfgData.StationAddress, sizeof (EFI_IPv6_ADDRESS));\r
317 ZeroMem (&Private->Ip6CfgData.StationAddress, sizeof (EFI_IPv6_ADDRESS));\r
318 Private->Dhcp6->Stop (Private->Dhcp6);\r
319 Private->Dhcp6->Configure (Private->Dhcp6, NULL);\r
320 Private->Udp6Write->Configure (Private->Udp6Write, NULL);\r
321 Private->Udp6Read->Groups (Private->Udp6Read, FALSE, NULL);\r
322 Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r
323 Private->Ip6->Cancel (Private->Ip6, &Private->Icmp6Token);\r
324 Private->Ip6->Configure (Private->Ip6, NULL);\r
325 PxeBcUnregisterIp6Address (Private);\r
326 if (Private->Icmp6Token.Event != NULL) {\r
327 gBS->CloseEvent (Private->Icmp6Token.Event);\r
328 Private->Icmp6Token.Event = NULL;\r
329 }\r
330 if (Private->Dhcp6Request != NULL) {\r
331 FreePool (Private->Dhcp6Request);\r
332 Private->Dhcp6Request = NULL;\r
333 }\r
334 if (Private->BootFileName != NULL) {\r
335 FreePool (Private->BootFileName);\r
336 Private->BootFileName = NULL;\r
337 }\r
338 } else {\r
339 //\r
340 // Configure all the instances for IPv4 as NULL.\r
341 //\r
342 ZeroMem (&Private->Udp4CfgData.StationAddress, sizeof (EFI_IPv4_ADDRESS));\r
343 ZeroMem (&Private->Udp4CfgData.SubnetMask, sizeof (EFI_IPv4_ADDRESS));\r
344 ZeroMem (&Private->Ip4CfgData.StationAddress, sizeof (EFI_IPv4_ADDRESS));\r
345 ZeroMem (&Private->Ip4CfgData.SubnetMask, sizeof (EFI_IPv4_ADDRESS));\r
346 Private->Dhcp4->Stop (Private->Dhcp4);\r
347 Private->Dhcp4->Configure (Private->Dhcp4, NULL);\r
348 Private->Udp4Write->Configure (Private->Udp4Write, NULL);\r
349 Private->Udp4Read->Groups (Private->Udp4Read, FALSE, NULL);\r
350 Private->Udp4Read->Configure (Private->Udp4Read, NULL);\r
351 Private->Ip4->Cancel (Private->Ip4, &Private->IcmpToken);\r
352 Private->Ip4->Configure (Private->Ip4, NULL);\r
353 if (Private->ArpUpdateEvent != NULL) {\r
354 gBS->CloseEvent (Private->ArpUpdateEvent);\r
355 Private->ArpUpdateEvent = NULL;\r
356 }\r
357 if (Private->IcmpToken.Event != NULL) {\r
358 gBS->CloseEvent (Private->IcmpToken.Event);\r
359 Private->IcmpToken.Event = NULL;\r
360 }\r
e29fc502 361 Private->BootFileName = NULL;\r
a3bcde70
HT		 362 }\r
363\r
364 gBS->CloseEvent (Private->UdpTimeOutEvent);\r
365 Private->CurSrcPort = 0;\r
366 Private->BootFileSize = 0;\r
129b8b09 367 Private->SolicitTimes = 0;\r
368 Private->ElapsedTime = 0;\r
620f846f
FS		 369 ZeroMem (&Private->StationIp, sizeof (EFI_IP_ADDRESS));\r
370 ZeroMem (&Private->SubnetMask, sizeof (EFI_IP_ADDRESS));\r
371 ZeroMem (&Private->GatewayIp, sizeof (EFI_IP_ADDRESS));\r
372 ZeroMem (&Private->ServerIp, sizeof (EFI_IP_ADDRESS));\r
a3bcde70
HT		 373\r
374 //\r
375 // Reset the mode data.\r
376 //\r
377 ZeroMem (Mode, sizeof (EFI_PXE_BASE_CODE_MODE));\r
378 Mode->Ipv6Available = Ipv6Available;\r
379 Mode->Ipv6Supported = Ipv6Supported;\r
380 Mode->AutoArp = TRUE;\r
381 Mode->TTL = DEFAULT_TTL;\r
382 Mode->ToS = DEFAULT_ToS;\r
383\r
384 return EFI_SUCCESS;\r
385}\r
386\r
387\r
388/**\r
389 Attempts to complete a DHCPv4 D.O.R.A. (discover / offer / request / acknowledge) or DHCPv6\r
390 S.A.R.R (solicit / advertise / request / reply) sequence.\r
391\r
392 If SortOffers is TRUE, then the cached DHCP offer packets will be sorted before\r
393 they are tried. If SortOffers is FALSE, then the cached DHCP offer packets will\r
394 be tried in the order in which they are received. Please see the Preboot Execution\r
395 Environment (PXE) Specification and Unified Extensible Firmware Interface (UEFI)\r
396 Specification for additional details on the implementation of DHCP.\r
397 If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,\r
398 then the DHCP sequence will be stopped and EFI_ABORTED will be returned.\r
399\r
400 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
401 @param[in] SortOffers TRUE if the offers received should be sorted. Set to FALSE to\r
402 try the offers in the order that they are received.\r
403\r
404 @retval EFI_SUCCESS Valid DHCP has completed.\r
405 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
406 @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid\r
407 EFI_PXE_BASE_CODE_PROTOCOL structure.\r
408 @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
409 @retval EFI_OUT_OF_RESOURCES Could not allocate enough memory to complete the DHCP Protocol.\r
410 @retval EFI_ABORTED The callback function aborted the DHCP Protocol.\r
411 @retval EFI_TIMEOUT The DHCP Protocol timed out.\r
412 @retval EFI_ICMP_ERROR An ICMP error packet was received during the DHCP session.\r
413 @retval EFI_NO_RESPONSE Valid PXE offer was not received.\r
414\r
415**/\r
416EFI_STATUS\r
417EFIAPI\r
418EfiPxeBcDhcp (\r
419 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
420 IN BOOLEAN SortOffers\r
421 )\r
422{\r
423 PXEBC_PRIVATE_DATA *Private;\r
424 EFI_PXE_BASE_CODE_MODE *Mode;\r
425 EFI_STATUS Status;\r
426 EFI_PXE_BASE_CODE_IP_FILTER IpFilter;\r
427\r
428 if (This == NULL) {\r
429 return EFI_INVALID_PARAMETER;\r
430 }\r
431\r
432 Status = EFI_SUCCESS;\r
433 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
434 Mode = Private->PxeBc.Mode;\r
435 Mode->IcmpErrorReceived = FALSE;\r
436 Private->Function = EFI_PXE_BASE_CODE_FUNCTION_DHCP;\r
437 Private->IsOfferSorted = SortOffers;\r
4496ff75 438 Private->SolicitTimes = 0;\r
439 Private->ElapsedTime = 0;\r
a3bcde70
HT		 440\r
441 if (!Mode->Started) {\r
442 return EFI_NOT_STARTED;\r
443 }\r
444\r
445 if (Mode->UsingIpv6) {\r
446\r
447 //\r
448 // Stop Udp6Read instance\r
449 //\r
450 Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r
451\r
452 //\r
453 // Start S.A.R.R. process to get a IPv6 address and other boot information.\r
454 //\r
455 Status = PxeBcDhcp6Sarr (Private, Private->Dhcp6);\r
456 } else {\r
457\r
458 //\r
459 // Stop Udp4Read instance\r
460 //\r
461 Private->Udp4Read->Configure (Private->Udp4Read, NULL);\r
462\r
463 //\r
464 // Start D.O.R.A. process to get a IPv4 address and other boot information.\r
465 //\r
466 Status = PxeBcDhcp4Dora (Private, Private->Dhcp4);\r
467 }\r
1ac9cb8a 468\r
469 //\r
470 // Reconfigure the UDP instance with the default configuration.\r
471 //\r
357af285 472 if (Mode->UsingIpv6) {\r
473 Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r
474 } else {\r
475 Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);\r
476 }\r
a3bcde70
HT		 477 //\r
478 // Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP\r
479 // receive filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.\r
480 //\r
481 ZeroMem(&IpFilter, sizeof (EFI_PXE_BASE_CODE_IP_FILTER));\r
482 IpFilter.Filters = EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP;\r
483 This->SetIpFilter (This, &IpFilter);\r
484\r
485 return Status;\r
486}\r
487\r
488\r
489/**\r
490 Attempts to complete the PXE Boot Server and/or boot image discovery sequence.\r
491\r
492 This function attempts to complete the PXE Boot Server and/or boot image discovery\r
493 sequence. If this sequence is completed, then EFI_SUCCESS is returned, and the\r
494 PxeDiscoverValid, PxeDiscover, PxeReplyReceived, and PxeReply fields of the\r
495 EFI_PXE_BASE_CODE_MODE structure are filled in. If UseBis is TRUE, then the\r
496 PxeBisReplyReceived and PxeBisReply fields of the EFI_PXE_BASE_CODE_MODE structure\r
497 will also be filled in. If UseBis is FALSE, then PxeBisReplyValid will be set to FALSE.\r
498 In the structure referenced by parameter Info, the PXE Boot Server list, SrvList[],\r
499 has two uses: It is the Boot Server IP address list used for unicast discovery\r
500 (if the UseUCast field is TRUE), and it is the list used for Boot Server verification\r
501 (if the MustUseList field is TRUE). Also, if the MustUseList field in that structure\r
502 is TRUE and the AcceptAnyResponse field in the SrvList[] array is TRUE, any Boot\r
503 Server reply of that type will be accepted. If the AcceptAnyResponse field is\r
504 FALSE, only responses from Boot Servers with matching IP addresses will be accepted.\r
505 This function can take at least 10 seconds to timeout and return control to the\r
506 caller. If the Discovery sequence does not complete, then EFI_TIMEOUT will be\r
507 returned. Please see the Preboot Execution Environment (PXE) Specification for\r
508 additional details on the implementation of the Discovery sequence.\r
509 If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,\r
510 then the Discovery sequence is stopped and EFI_ABORTED will be returned.\r
511\r
512 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
513 @param[in] Type The type of bootstrap to perform.\r
514 @param[in] Layer Pointer to the boot server layer number to discover, which must be\r
515 PXE_BOOT_LAYER_INITIAL when a new server type is being\r
516 discovered.\r
517 @param[in] UseBis TRUE if Boot Integrity Services are to be used. FALSE otherwise.\r
518 @param[in] Info Pointer to a data structure that contains additional information\r
519 on the type of discovery operation that is to be performed.\r
520 It is optional.\r
521\r
522 @retval EFI_SUCCESS The Discovery sequence has been completed.\r
523 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
524 @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
525 @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
526 @retval EFI_OUT_OF_RESOURCES Could not allocate enough memory to complete Discovery.\r
527 @retval EFI_ABORTED The callback function aborted the Discovery sequence.\r
528 @retval EFI_TIMEOUT The Discovery sequence timed out.\r
529 @retval EFI_ICMP_ERROR An ICMP error packet was received during the PXE discovery\r
530 session.\r
531\r
532**/\r
533EFI_STATUS\r
534EFIAPI\r
535EfiPxeBcDiscover (\r
536 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
537 IN UINT16 Type,\r
538 IN UINT16 *Layer,\r
539 IN BOOLEAN UseBis,\r
540 IN EFI_PXE_BASE_CODE_DISCOVER_INFO *Info OPTIONAL\r
541 )\r
542{\r
543 PXEBC_PRIVATE_DATA *Private;\r
544 EFI_PXE_BASE_CODE_MODE *Mode;\r
545 EFI_PXE_BASE_CODE_DISCOVER_INFO DefaultInfo;\r
546 EFI_PXE_BASE_CODE_SRVLIST *SrvList;\r
547 PXEBC_BOOT_SVR_ENTRY *BootSvrEntry;\r
548 UINT16 Index;\r
549 EFI_STATUS Status;\r
550 EFI_PXE_BASE_CODE_IP_FILTER IpFilter;\r
9063c328 551 EFI_PXE_BASE_CODE_DISCOVER_INFO *NewCreatedInfo;\r
a3bcde70
HT		 552\r
553 if (This == NULL) {\r
554 return EFI_INVALID_PARAMETER;\r
555 }\r
556\r
557 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
558 Mode = Private->PxeBc.Mode;\r
559 Mode->IcmpErrorReceived = FALSE;\r
560 BootSvrEntry = NULL;\r
561 SrvList = NULL;\r
562 Status = EFI_DEVICE_ERROR;\r
563 Private->Function = EFI_PXE_BASE_CODE_FUNCTION_DISCOVER;\r
9063c328 564 NewCreatedInfo = NULL;\r
a3bcde70
HT		 565\r
566 if (!Mode->Started) {\r
567 return EFI_NOT_STARTED;\r
568 }\r
569\r
570 //\r
571 // Station address should be ready before do discover.\r
572 //\r
573 if (!Private->IsAddressOk) {\r
574 return EFI_INVALID_PARAMETER;\r
575 }\r
576\r
577 if (Mode->UsingIpv6) {\r
578\r
579 //\r
580 // Stop Udp6Read instance\r
581 //\r
582 Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r
583 } else {\r
584\r
585 //\r
586 // Stop Udp4Read instance\r
587 //\r
588 Private->Udp4Read->Configure (Private->Udp4Read, NULL);\r
589 }\r
590\r
591 //\r
592 // There are 3 methods to get the information for discover.\r
593 //\r
f402291b 594 ZeroMem (&DefaultInfo, sizeof (EFI_PXE_BASE_CODE_DISCOVER_INFO));\r
a3bcde70
HT		 595 if (*Layer != EFI_PXE_BASE_CODE_BOOT_LAYER_INITIAL) {\r
596 //\r
597 // 1. Take the previous setting as the discover info.\r
598 //\r
599 if (!Mode->PxeDiscoverValid ||\r
600 !Mode->PxeReplyReceived ||\r
601 (!Mode->PxeBisReplyReceived && UseBis)) {\r
602 Status = EFI_INVALID_PARAMETER;\r
603 goto ON_EXIT;\r
604 }\r
605\r
606 Info = &DefaultInfo;\r
607 Info->IpCnt = 1;\r
608 Info->UseUCast = TRUE;\r
609 SrvList = Info->SrvList;\r
610 SrvList[0].Type = Type;\r
611 SrvList[0].AcceptAnyResponse = FALSE;\r
612\r
613 CopyMem (&SrvList->IpAddr, &Private->ServerIp, sizeof (EFI_IP_ADDRESS));\r
614\r
615 } else if (Info == NULL) {\r
616 //\r
617 // 2. Extract the discover information from the cached packets if unspecified.\r
618 //\r
9063c328 619 NewCreatedInfo = &DefaultInfo;\r
620 Status = PxeBcExtractDiscoverInfo (Private, Type, &NewCreatedInfo, &BootSvrEntry, &SrvList);\r
a3bcde70
HT		 621 if (EFI_ERROR (Status)) {\r
622 goto ON_EXIT;\r
623 }\r
393a3169 624 ASSERT (NewCreatedInfo != NULL);\r
9063c328 625 Info = NewCreatedInfo;\r
a3bcde70
HT		 626 } else {\r
627 //\r
628 // 3. Take the pass-in information as the discover info, and validate the server list.\r
629 //\r
630 SrvList = Info->SrvList;\r
631\r
632 if (!SrvList[0].AcceptAnyResponse) {\r
633 for (Index = 1; Index < Info->IpCnt; Index++) {\r
634 if (SrvList[Index].AcceptAnyResponse) {\r
635 break;\r
636 }\r
637 }\r
638 if (Index != Info->IpCnt) {\r
639 //\r
640 // It's invalid if the first server doesn't accecpt any response\r
928927dd 641 // but any of the other servers does accept any response.\r
a3bcde70
HT		 642 //\r
643 Status = EFI_INVALID_PARAMETER;\r
644 goto ON_EXIT;\r
645 }\r
646 }\r
647 }\r
648\r
649 //\r
650 // Info and BootSvrEntry/SrvList are all ready by now, so execute discover by UniCast/BroadCast/MultiCast.\r
651 //\r
652 if ((!Info->UseUCast && !Info->UseBCast && !Info->UseMCast) ||\r
653 (Info->MustUseList && Info->IpCnt == 0)) {\r
654 Status = EFI_INVALID_PARAMETER;\r
655 goto ON_EXIT;\r
656 }\r
657\r
658 Private->IsDoDiscover = TRUE;\r
659\r
9063c328 660 if (Info->UseMCast) {\r
a3bcde70
HT		 661 //\r
662 // Do discover by multicast.\r
663 //\r
664 Status = PxeBcDiscoverBootServer (\r
665 Private,\r
666 Type,\r
667 Layer,\r
668 UseBis,\r
669 &Info->ServerMCastIp,\r
9063c328 670 Info->IpCnt,\r
671 SrvList\r
a3bcde70
HT		 672 );\r
673\r
674 } else if (Info->UseBCast) {\r
675 //\r
676 // Do discover by broadcast, but only valid for IPv4.\r
677 //\r
678 ASSERT (!Mode->UsingIpv6);\r
679 Status = PxeBcDiscoverBootServer (\r
680 Private,\r
681 Type,\r
682 Layer,\r
683 UseBis,\r
684 NULL,\r
685 Info->IpCnt,\r
686 SrvList\r
687 );\r
9063c328 688\r
689 } else if (Info->UseUCast) {\r
690 //\r
691 // Do discover by unicast.\r
692 //\r
693 for (Index = 0; Index < Info->IpCnt; Index++) {\r
694 if (BootSvrEntry == NULL) {\r
695 CopyMem (&Private->ServerIp, &SrvList[Index].IpAddr, sizeof (EFI_IP_ADDRESS));\r
696 } else {\r
697 ASSERT (!Mode->UsingIpv6);\r
698 ZeroMem (&Private->ServerIp, sizeof (EFI_IP_ADDRESS));\r
699 CopyMem (&Private->ServerIp, &BootSvrEntry->IpAddr[Index], sizeof (EFI_IPv4_ADDRESS));\r
700 }\r
701\r
702 Status = PxeBcDiscoverBootServer (\r
703 Private,\r
704 Type,\r
705 Layer,\r
706 UseBis,\r
707 &Private->ServerIp,\r
708 Info->IpCnt,\r
709 SrvList\r
710 );\r
711 }\r
a3bcde70
HT		 712 }\r
713\r
1ac9cb8a 714 if (!EFI_ERROR (Status)) {\r
a3bcde70
HT		 715 //\r
716 // Parse the cached PXE reply packet, and store it into mode data if valid.\r
717 //\r
718 if (Mode->UsingIpv6) {\r
719 Status = PxeBcParseDhcp6Packet (&Private->PxeReply.Dhcp6);\r
720 if (!EFI_ERROR (Status)) {\r
721 CopyMem (\r
722 &Mode->PxeReply.Dhcpv6,\r
9063c328 723 &Private->PxeReply.Dhcp6.Packet.Ack.Dhcp6,\r
724 Private->PxeReply.Dhcp6.Packet.Ack.Length\r
a3bcde70
HT		 725 );\r
726 Mode->PxeReplyReceived = TRUE;\r
727 Mode->PxeDiscoverValid = TRUE;\r
728 }\r
729 } else {\r
730 Status = PxeBcParseDhcp4Packet (&Private->PxeReply.Dhcp4);\r
731 if (!EFI_ERROR (Status)) {\r
732 CopyMem (\r
733 &Mode->PxeReply.Dhcpv4,\r
9063c328 734 &Private->PxeReply.Dhcp4.Packet.Ack.Dhcp4,\r
735 Private->PxeReply.Dhcp4.Packet.Ack.Length\r
a3bcde70
HT		 736 );\r
737 Mode->PxeReplyReceived = TRUE;\r
738 Mode->PxeDiscoverValid = TRUE;\r
739 }\r
740 }\r
741 }\r
742\r
743ON_EXIT:\r
744\r
9063c328 745 if (NewCreatedInfo != NULL && NewCreatedInfo != &DefaultInfo) {\r
746 FreePool (NewCreatedInfo);\r
747 }\r
748 \r
18127352 749 if (Mode->UsingIpv6) {\r
357af285 750 Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r
18127352 751 } else {\r
357af285 752 Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);\r
18127352 753 }\r
754 \r
a3bcde70
HT		 755 //\r
756 // Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP\r
757 // receive filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.\r
758 //\r
759 ZeroMem(&IpFilter, sizeof (EFI_PXE_BASE_CODE_IP_FILTER));\r
760 IpFilter.Filters = EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP;\r
761 This->SetIpFilter (This, &IpFilter);\r
762\r
763 return Status;\r
764}\r
765\r
766\r
767/**\r
768 Used to perform TFTP and MTFTP services.\r
769\r
770 This function is used to perform TFTP and MTFTP services. This includes the\r
771 TFTP operations to get the size of a file, read a directory, read a file, and\r
772 write a file. It also includes the MTFTP operations to get the size of a file,\r
773 read a directory, and read a file. The type of operation is specified by Operation.\r
774 If the callback function that is invoked during the TFTP/MTFTP operation does\r
775 not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will\r
776 be returned.\r
777 For read operations, the return data will be placed in the buffer specified by\r
778 BufferPtr. If BufferSize is too small to contain the entire downloaded file,\r
779 then EFI_BUFFER_TOO_SMALL will be returned and BufferSize will be set to zero,\r
780 or the size of the requested file. (NOTE: the size of the requested file is only returned\r
781 if the TFTP server supports TFTP options). If BufferSize is large enough for the\r
782 read operation, then BufferSize will be set to the size of the downloaded file,\r
783 and EFI_SUCCESS will be returned. Applications using the PxeBc.Mtftp() services\r
784 should use the get-file-size operations to determine the size of the downloaded\r
785 file prior to using the read-file operations-especially when downloading large\r
786 (greater than 64 MB) files-instead of making two calls to the read-file operation.\r
787 Following this recommendation will save time if the file is larger than expected\r
788 and the TFTP server does not support TFTP option extensions. Without TFTP option\r
789 extension support, the client must download the entire file, counting and discarding\r
790 the received packets, to determine the file size.\r
791 For write operations, the data to be sent is in the buffer specified by BufferPtr.\r
792 BufferSize specifies the number of bytes to send. If the write operation completes\r
793 successfully, then EFI_SUCCESS will be returned.\r
794 For TFTP "get file size" operations, the size of the requested file or directory\r
795 is returned in BufferSize, and EFI_SUCCESS will be returned. If the TFTP server\r
796 does not support options, the file will be downloaded into a bit bucket and the\r
797 length of the downloaded file will be returned. For MTFTP "get file size" operations,\r
798 if the MTFTP server does not support the "get file size" option, EFI_UNSUPPORTED\r
799 will be returned.\r
800 This function can take up to 10 seconds to timeout and return control to the caller.\r
801 If the TFTP sequence does not complete, EFI_TIMEOUT will be returned.\r
802 If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,\r
803 then the TFTP sequence is stopped and EFI_ABORTED will be returned.\r
804\r
805 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
806 @param[in] Operation The type of operation to perform.\r
807 @param[in, out] BufferPtr A pointer to the data buffer.\r
808 @param[in] Overwrite Only used on write file operations. TRUE if a file on a remote\r
809 server can be overwritten.\r
810 @param[in, out] BufferSize For get-file-size operations, *BufferSize returns the size of the\r
811 requested file.\r
812 @param[in] BlockSize The requested block size to be used during a TFTP transfer.\r
813 @param[in] ServerIp The TFTP / MTFTP server IP address.\r
814 @param[in] Filename A Null-terminated ASCII string that specifies a directory name\r
815 or a file name.\r
816 @param[in] Info Pointer to the MTFTP information.\r
817 @param[in] DontUseBuffer Set to FALSE for normal TFTP and MTFTP read file operation.\r
818\r
819 @retval EFI_SUCCESS The TFTP/MTFTP operation was completed.\r
820 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
821 @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
822 @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
823 @retval EFI_BUFFER_TOO_SMALL The buffer is not large enough to complete the read operation.\r
824 @retval EFI_ABORTED The callback function aborted the TFTP/MTFTP operation.\r
825 @retval EFI_TIMEOUT The TFTP/MTFTP operation timed out.\r
826 @retval EFI_ICMP_ERROR An ICMP error packet was received during the MTFTP session.\r
827 @retval EFI_TFTP_ERROR A TFTP error packet was received during the MTFTP session.\r
828\r
829**/\r
830EFI_STATUS\r
831EFIAPI\r
832EfiPxeBcMtftp (\r
833 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
834 IN EFI_PXE_BASE_CODE_TFTP_OPCODE Operation,\r
835 IN OUT VOID *BufferPtr OPTIONAL,\r
836 IN BOOLEAN Overwrite,\r
837 IN OUT UINT64 *BufferSize,\r
838 IN UINTN *BlockSize OPTIONAL,\r
839 IN EFI_IP_ADDRESS *ServerIp,\r
840 IN UINT8 *Filename,\r
841 IN EFI_PXE_BASE_CODE_MTFTP_INFO *Info OPTIONAL,\r
842 IN BOOLEAN DontUseBuffer\r
843 )\r
844{\r
845 PXEBC_PRIVATE_DATA *Private;\r
846 EFI_PXE_BASE_CODE_MODE *Mode;\r
847 EFI_MTFTP4_CONFIG_DATA Mtftp4Config;\r
848 EFI_MTFTP6_CONFIG_DATA Mtftp6Config;\r
849 VOID *Config;\r
850 EFI_STATUS Status;\r
851 EFI_PXE_BASE_CODE_IP_FILTER IpFilter;\r
852\r
853\r
854 if ((This == NULL) ||\r
855 (Filename == NULL) ||\r
856 (BufferSize == NULL) ||\r
857 (ServerIp == NULL) ||\r
858 ((BufferPtr == NULL) && DontUseBuffer) ||\r
6c12fe63 859 ((BlockSize != NULL) && (*BlockSize < PXE_MTFTP_DEFAULT_BLOCK_SIZE))) {\r
a3bcde70
HT		 860 return EFI_INVALID_PARAMETER;\r
861 }\r
862\r
863 Config = NULL;\r
864 Status = EFI_DEVICE_ERROR;\r
865 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
866 Mode = Private->PxeBc.Mode;\r
867\r
6c12fe63
FS		 868 if (Mode->UsingIpv6) {\r
869 if (!NetIp6IsValidUnicast (&ServerIp->v6)) {\r
870 return EFI_INVALID_PARAMETER;\r
871 }\r
872 } else {\r
873 if (IP4_IS_UNSPECIFIED (NTOHL (ServerIp->Addr[0])) || IP4_IS_LOCAL_BROADCAST (NTOHL (ServerIp->Addr[0]))) {\r
874 return EFI_INVALID_PARAMETER;\r
875 }\r
876 }\r
877\r
a3bcde70
HT		 878 if (Mode->UsingIpv6) {\r
879 //\r
880 // Set configuration data for Mtftp6 instance.\r
881 //\r
882 ZeroMem (&Mtftp6Config, sizeof (EFI_MTFTP6_CONFIG_DATA));\r
883 Config = &Mtftp6Config;\r
884 Mtftp6Config.TimeoutValue = PXEBC_MTFTP_TIMEOUT;\r
885 Mtftp6Config.TryCount = PXEBC_MTFTP_RETRIES;\r
886 CopyMem (&Mtftp6Config.StationIp, &Private->StationIp.v6, sizeof (EFI_IPv6_ADDRESS));\r
887 CopyMem (&Mtftp6Config.ServerIp, &ServerIp->v6, sizeof (EFI_IPv6_ADDRESS));\r
888 //\r
889 // Stop Udp6Read instance\r
890 //\r
891 Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r
892 } else {\r
893 //\r
894 // Set configuration data for Mtftp4 instance.\r
895 //\r
896 ZeroMem (&Mtftp4Config, sizeof (EFI_MTFTP4_CONFIG_DATA));\r
897 Config = &Mtftp4Config;\r
898 Mtftp4Config.UseDefaultSetting = FALSE;\r
899 Mtftp4Config.TimeoutValue = PXEBC_MTFTP_TIMEOUT;\r
900 Mtftp4Config.TryCount = PXEBC_MTFTP_RETRIES;\r
901 CopyMem (&Mtftp4Config.StationIp, &Private->StationIp.v4, sizeof (EFI_IPv4_ADDRESS));\r
902 CopyMem (&Mtftp4Config.SubnetMask, &Private->SubnetMask.v4, sizeof (EFI_IPv4_ADDRESS));\r
903 CopyMem (&Mtftp4Config.GatewayIp, &Private->GatewayIp.v4, sizeof (EFI_IPv4_ADDRESS));\r
904 CopyMem (&Mtftp4Config.ServerIp, &ServerIp->v4, sizeof (EFI_IPv4_ADDRESS));\r
905 //\r
906 // Stop Udp4Read instance\r
907 //\r
908 Private->Udp4Read->Configure (Private->Udp4Read, NULL);\r
909 }\r
910\r
911 Mode->TftpErrorReceived = FALSE;\r
912 Mode->IcmpErrorReceived = FALSE;\r
913\r
914 switch (Operation) {\r
915\r
916 case EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE:\r
917 //\r
918 // Send TFTP request to get file size.\r
919 //\r
920 Status = PxeBcTftpGetFileSize (\r
921 Private,\r
922 Config,\r
923 Filename,\r
924 BlockSize,\r
925 BufferSize\r
926 );\r
927\r
928 break;\r
929\r
930 case EFI_PXE_BASE_CODE_TFTP_READ_FILE:\r
931 //\r
932 // Send TFTP request to read file.\r
933 //\r
934 Status = PxeBcTftpReadFile (\r
935 Private,\r
936 Config,\r
937 Filename,\r
938 BlockSize,\r
939 BufferPtr,\r
940 BufferSize,\r
941 DontUseBuffer\r
942 );\r
943\r
944 break;\r
945\r
946 case EFI_PXE_BASE_CODE_TFTP_WRITE_FILE:\r
947 //\r
948 // Send TFTP request to write file.\r
949 //\r
950 Status = PxeBcTftpWriteFile (\r
951 Private,\r
952 Config,\r
953 Filename,\r
954 Overwrite,\r
955 BlockSize,\r
956 BufferPtr,\r
957 BufferSize\r
958 );\r
959\r
960 break;\r
961\r
962 case EFI_PXE_BASE_CODE_TFTP_READ_DIRECTORY:\r
963 //\r
964 // Send TFTP request to read directory.\r
965 //\r
966 Status = PxeBcTftpReadDirectory (\r
967 Private,\r
968 Config,\r
969 Filename,\r
970 BlockSize,\r
971 BufferPtr,\r
972 BufferSize,\r
973 DontUseBuffer\r
974 );\r
975\r
976 break;\r
977\r
978 case EFI_PXE_BASE_CODE_MTFTP_GET_FILE_SIZE:\r
979 case EFI_PXE_BASE_CODE_MTFTP_READ_FILE:\r
980 case EFI_PXE_BASE_CODE_MTFTP_READ_DIRECTORY:\r
981 Status = EFI_UNSUPPORTED;\r
982\r
983 break;\r
984\r
985 default:\r
986 Status = EFI_INVALID_PARAMETER;\r
987\r
988 break;\r
989 }\r
990\r
991 if (Status == EFI_ICMP_ERROR) {\r
992 Mode->IcmpErrorReceived = TRUE;\r
993 }\r
994\r
1ac9cb8a 995 //\r
996 // Reconfigure the UDP instance with the default configuration.\r
997 //\r
18127352 998 if (Mode->UsingIpv6) {\r
357af285 999 Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);\r
18127352 1000 } else {\r
357af285 1001 Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);\r
18127352 1002 }\r
a3bcde70
HT		 1003 //\r
1004 // Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP\r
1005 // receive filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.\r
1006 //\r
1007 ZeroMem(&IpFilter, sizeof (EFI_PXE_BASE_CODE_IP_FILTER));\r
1008 IpFilter.Filters = EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP;\r
1009 This->SetIpFilter (This, &IpFilter);\r
1010\r
1011 return Status;\r
1012}\r
1013\r
1014\r
1015/**\r
1016 Writes a UDP packet to the network interface.\r
1017\r
1018 This function writes a UDP packet specified by the (optional HeaderPtr and)\r
1019 BufferPtr parameters to the network interface. The UDP header is automatically\r
1020 built by this routine. It uses the parameters OpFlags, DestIp, DestPort, GatewayIp,\r
1021 SrcIp, and SrcPort to build this header. If the packet is successfully built and\r
1022 transmitted through the network interface, then EFI_SUCCESS will be returned.\r
1023 If a timeout occurs during the transmission of the packet, then EFI_TIMEOUT will\r
1024 be returned. If an ICMP error occurs during the transmission of the packet, then\r
1025 the IcmpErrorReceived field is set to TRUE, the IcmpError field is filled in and\r
1026 EFI_ICMP_ERROR will be returned. If the Callback Protocol does not return\r
1027 EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will be returned.\r
1028\r
1029 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
1030 @param[in] OpFlags The UDP operation flags.\r
1031 @param[in] DestIp The destination IP address.\r
1032 @param[in] DestPort The destination UDP port number.\r
1033 @param[in] GatewayIp The gateway IP address.\r
1034 @param[in] SrcIp The source IP address.\r
1035 @param[in, out] SrcPort The source UDP port number.\r
1036 @param[in] HeaderSize An optional field which may be set to the length of a header\r
1037 at HeaderPtr to be prefixed to the data at BufferPtr.\r
1038 @param[in] HeaderPtr If HeaderSize is not NULL, a pointer to a header to be\r
1039 prefixed to the data at BufferPtr.\r
1040 @param[in] BufferSize A pointer to the size of the data at BufferPtr.\r
1041 @param[in] BufferPtr A pointer to the data to be written.\r
1042\r
1043 @retval EFI_SUCCESS The UDP Write operation completed.\r
1044 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
1045 @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
1046 @retval EFI_BAD_BUFFER_SIZE The buffer is too long to be transmitted.\r
1047 @retval EFI_ABORTED The callback function aborted the UDP Write operation.\r
1048 @retval EFI_TIMEOUT The UDP Write operation timed out.\r
1049 @retval EFI_ICMP_ERROR An ICMP error packet was received during the UDP write session.\r
1050\r
1051**/\r
1052EFI_STATUS\r
1053EFIAPI\r
1054EfiPxeBcUdpWrite (\r
1055 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
1056 IN UINT16 OpFlags,\r
1057 IN EFI_IP_ADDRESS *DestIp,\r
1058 IN EFI_PXE_BASE_CODE_UDP_PORT *DestPort,\r
1059 IN EFI_IP_ADDRESS *GatewayIp OPTIONAL,\r
1060 IN EFI_IP_ADDRESS *SrcIp OPTIONAL,\r
1061 IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort OPTIONAL,\r
1062 IN UINTN *HeaderSize OPTIONAL,\r
1063 IN VOID *HeaderPtr OPTIONAL,\r
1064 IN UINTN *BufferSize,\r
1065 IN VOID *BufferPtr\r
1066 )\r
1067{\r
1068 PXEBC_PRIVATE_DATA *Private;\r
1069 EFI_PXE_BASE_CODE_MODE *Mode;\r
1070 EFI_UDP4_SESSION_DATA Udp4Session;\r
1071 EFI_UDP6_SESSION_DATA Udp6Session;\r
1072 EFI_STATUS Status;\r
1073 BOOLEAN DoNotFragment;\r
1074\r
1075 if (This == NULL || DestIp == NULL || DestPort == NULL) {\r
1076 return EFI_INVALID_PARAMETER;\r
1077 }\r
1078\r
1079 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
1080 Mode = Private->PxeBc.Mode;\r
1081\r
1082 if ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_MAY_FRAGMENT) != 0) {\r
1083 DoNotFragment = FALSE;\r
1084 } else {\r
1085 DoNotFragment = TRUE;\r
1086 }\r
1087\r
6c12fe63 1088 if (!Mode->UsingIpv6 && GatewayIp != NULL && !NetIp4IsUnicast (NTOHL (GatewayIp->Addr[0]), EFI_NTOHL(Mode->SubnetMask))) {\r
a3bcde70
HT		 1089 //\r
1090 // Gateway is provided but it's not a unicast IPv4 address, while it will be ignored for IPv6.\r
1091 //\r
1092 return EFI_INVALID_PARAMETER;\r
1093 }\r
1094\r
1095 if (HeaderSize != NULL && (*HeaderSize == 0 || HeaderPtr == NULL)) {\r
1096 return EFI_INVALID_PARAMETER;\r
1097 }\r
1098\r
1099 if (BufferSize == NULL || (*BufferSize != 0 && BufferPtr == NULL)) {\r
1100 return EFI_INVALID_PARAMETER;\r
1101 }\r
1102\r
1103 if (!Mode->Started) {\r
1104 return EFI_NOT_STARTED;\r
1105 }\r
1106\r
1107 if (!Private->IsAddressOk && SrcIp == NULL) {\r
1108 return EFI_INVALID_PARAMETER;\r
1109 }\r
1110\r
1111 if (Private->CurSrcPort == 0 ||\r
1112 (SrcPort != NULL && *SrcPort != Private->CurSrcPort)) {\r
1113 //\r
1114 // Reconfigure UDPv4/UDPv6 for UdpWrite if the source port changed.\r
1115 //\r
1116 if (SrcPort != NULL) {\r
1117 Private->CurSrcPort = *SrcPort;\r
1118 }\r
1119 }\r
1120\r
1121 if (Mode->UsingIpv6) {\r
1122 Status = PxeBcConfigUdp6Write (\r
1123 Private->Udp6Write,\r
1124 &Private->StationIp.v6,\r
1125 &Private->CurSrcPort\r
1126 );\r
1127 } else {\r
1128 //\r
1129 // Configure the UDPv4 instance with gateway information from DHCP server as default.\r
1130 //\r
1131 Status = PxeBcConfigUdp4Write (\r
1132 Private->Udp4Write,\r
1133 &Private->StationIp.v4,\r
1134 &Private->SubnetMask.v4,\r
1135 &Private->GatewayIp.v4,\r
1136 &Private->CurSrcPort,\r
6f2f4116
FS		 1137 DoNotFragment,\r
1138 Private->Mode.TTL,\r
1139 Private->Mode.ToS\r
a3bcde70
HT		 1140 );\r
1141 }\r
1142\r
1143 if (EFI_ERROR (Status)) {\r
1144 Private->CurSrcPort = 0;\r
1145 return EFI_INVALID_PARAMETER;\r
1146 } else if (SrcPort != NULL) {\r
1147 *SrcPort = Private->CurSrcPort;\r
1148 }\r
1149\r
1150 //\r
1151 // Start a timer as timeout event for this blocking API.\r
1152 //\r
1153 gBS->SetTimer (Private->UdpTimeOutEvent, TimerRelative, PXEBC_UDP_TIMEOUT);\r
1154\r
1155 if (Mode->UsingIpv6) {\r
1156 //\r
1157 // Construct UDPv6 session data.\r
1158 //\r
1159 ZeroMem (&Udp6Session, sizeof (EFI_UDP6_SESSION_DATA));\r
1160 CopyMem (&Udp6Session.DestinationAddress, DestIp, sizeof (EFI_IPv6_ADDRESS));\r
1161 Udp6Session.DestinationPort = *DestPort;\r
1162 if (SrcIp != NULL) {\r
1163 CopyMem (&Udp6Session.SourceAddress, SrcIp, sizeof (EFI_IPv6_ADDRESS));\r
1164 }\r
1165 if (SrcPort != NULL) {\r
1166 Udp6Session.SourcePort = *SrcPort;\r
1167 }\r
1168\r
1169 Status = PxeBcUdp6Write (\r
1170 Private->Udp6Write,\r
1171 &Udp6Session,\r
1172 Private->UdpTimeOutEvent,\r
1173 HeaderSize,\r
1174 HeaderPtr,\r
1175 BufferSize,\r
1176 BufferPtr\r
1177 );\r
1178 } else {\r
1179 //\r
1180 // Construct UDPv4 session data.\r
1181 //\r
1182 ZeroMem (&Udp4Session, sizeof (EFI_UDP4_SESSION_DATA));\r
1183 CopyMem (&Udp4Session.DestinationAddress, DestIp, sizeof (EFI_IPv4_ADDRESS));\r
1184 Udp4Session.DestinationPort = *DestPort;\r
1185 if (SrcIp != NULL) {\r
1186 CopyMem (&Udp4Session.SourceAddress, SrcIp, sizeof (EFI_IPv4_ADDRESS));\r
1187 }\r
1188 if (SrcPort != NULL) {\r
1189 Udp4Session.SourcePort = *SrcPort;\r
1190 }\r
1191 //\r
1192 // Override the gateway information if user specified.\r
1193 //\r
1194 Status = PxeBcUdp4Write (\r
1195 Private->Udp4Write,\r
1196 &Udp4Session,\r
1197 Private->UdpTimeOutEvent,\r
1198 (EFI_IPv4_ADDRESS *) GatewayIp,\r
1199 HeaderSize,\r
1200 HeaderPtr,\r
1201 BufferSize,\r
1202 BufferPtr\r
1203 );\r
1204 }\r
1205\r
1206 gBS->SetTimer (Private->UdpTimeOutEvent, TimerCancel, 0);\r
1207\r
1208\r
1209 //\r
1210 // Reset the UdpWrite instance.\r
1211 //\r
1212 if (Mode->UsingIpv6) {\r
1213 Private->Udp6Write->Configure (Private->Udp6Write, NULL);\r
1214 } else {\r
1215 Private->Udp4Write->Configure (Private->Udp4Write, NULL);\r
1216 }\r
1217\r
1218 return Status;\r
1219}\r
1220\r
1221\r
1222/**\r
1223 Reads a UDP packet from the network interface.\r
1224+\r
1225 This function reads a UDP packet from a network interface. The data contents\r
1226 are returned in (the optional HeaderPtr and) BufferPtr, and the size of the\r
1227 buffer received is returned in BufferSize . If the input BufferSize is smaller\r
1228 than the UDP packet received (less optional HeaderSize), it will be set to the\r
1229 required size, and EFI_BUFFER_TOO_SMALL will be returned. In this case, the\r
1230 contents of BufferPtr are undefined, and the packet is lost. If a UDP packet is\r
1231 successfully received, then EFI_SUCCESS will be returned, and the information\r
1232 from the UDP header will be returned in DestIp, DestPort, SrcIp, and SrcPort if\r
1233 they are not NULL. Depending on the values of OpFlags and the DestIp, DestPort,\r
1234 SrcIp, and SrcPort input values, different types of UDP packet receive filtering\r
1235 will be performed. The following tables summarize these receive filter operations.\r
1236\r
1237 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
1238 @param[in] OpFlags The UDP operation flags.\r
1239 @param[in, out] DestIp The destination IP address.\r
1240 @param[in, out] DestPort The destination UDP port number.\r
1241 @param[in, out] SrcIp The source IP address.\r
1242 @param[in, out] SrcPort The source UDP port number.\r
1243 @param[in] HeaderSize An optional field which may be set to the length of a\r
1244 header at HeaderPtr to be prefixed to the data at BufferPtr.\r
1245 @param[in] HeaderPtr If HeaderSize is not NULL, a pointer to a header to be\r
1246 prefixed to the data at BufferPtr.\r
1247 @param[in, out] BufferSize A pointer to the size of the data at BufferPtr.\r
1248 @param[in] BufferPtr A pointer to the data to be read.\r
1249\r
1250 @retval EFI_SUCCESS The UDP Read operation was completed.\r
1251 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
1252 @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
1253 @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
1254 @retval EFI_BUFFER_TOO_SMALL The packet is larger than Buffer can hold.\r
1255 @retval EFI_ABORTED The callback function aborted the UDP Read operation.\r
1256 @retval EFI_TIMEOUT The UDP Read operation timed out.\r
1257\r
1258**/\r
1259EFI_STATUS\r
1260EFIAPI\r
1261EfiPxeBcUdpRead (\r
1262 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
1263 IN UINT16 OpFlags,\r
1264 IN OUT EFI_IP_ADDRESS *DestIp OPTIONAL,\r
1265 IN OUT EFI_PXE_BASE_CODE_UDP_PORT *DestPort OPTIONAL,\r
1266 IN OUT EFI_IP_ADDRESS *SrcIp OPTIONAL,\r
1267 IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort OPTIONAL,\r
1268 IN UINTN *HeaderSize OPTIONAL,\r
1269 IN VOID *HeaderPtr OPTIONAL,\r
1270 IN OUT UINTN *BufferSize,\r
1271 IN VOID *BufferPtr\r
1272 )\r
1273{\r
1274 PXEBC_PRIVATE_DATA *Private;\r
1275 EFI_PXE_BASE_CODE_MODE *Mode;\r
1276 EFI_UDP4_COMPLETION_TOKEN Udp4Token;\r
1277 EFI_UDP6_COMPLETION_TOKEN Udp6Token;\r
1278 EFI_UDP4_RECEIVE_DATA *Udp4Rx;\r
1279 EFI_UDP6_RECEIVE_DATA *Udp6Rx;\r
1280 EFI_STATUS Status;\r
1281 BOOLEAN IsDone;\r
1282 BOOLEAN IsMatched;\r
1283 UINTN CopiedLen;\r
eb2710af 1284 UINTN HeaderLen;\r
1285 UINTN HeaderCopiedLen;\r
1286 UINTN BufferCopiedLen;\r
1287 UINT32 FragmentLength;\r
1288 UINTN FragmentIndex;\r
1289 UINT8 *FragmentBuffer;\r
a3bcde70 1290\r
903d1fa9 1291 if (This == NULL) {\r
a3bcde70
HT		 1292 return EFI_INVALID_PARAMETER;\r
1293 }\r
1294\r
1295 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
1296 Mode = Private->PxeBc.Mode;\r
1297 IsDone = FALSE;\r
1298 IsMatched = FALSE;\r
1299 Udp4Rx = NULL;\r
1300 Udp6Rx = NULL;\r
1301\r
903d1fa9
FS		 1302 if (((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT) == 0 && DestPort == NULL) ||\r
1303 ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP) == 0 && SrcIp == NULL) ||\r
1304 ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_PORT) == 0 && SrcPort == NULL)) {\r
a3bcde70
HT		 1305 return EFI_INVALID_PARAMETER;\r
1306 }\r
1307\r
1308 if ((HeaderSize != NULL && *HeaderSize == 0) || (HeaderSize != NULL && HeaderPtr == NULL)) {\r
1309 return EFI_INVALID_PARAMETER;\r
1310 }\r
1311\r
1312 if ((BufferSize == NULL) || (BufferPtr == NULL)) {\r
1313 return EFI_INVALID_PARAMETER;\r
1314 }\r
1315\r
1316 if (!Mode->Started) {\r
1317 return EFI_NOT_STARTED;\r
1318 }\r
1319\r
1320 ZeroMem (&Udp6Token, sizeof (EFI_UDP6_COMPLETION_TOKEN));\r
1321 ZeroMem (&Udp4Token, sizeof (EFI_UDP4_COMPLETION_TOKEN));\r
1322\r
1323 if (Mode->UsingIpv6) {\r
1324 Status = gBS->CreateEvent (\r
1325 EVT_NOTIFY_SIGNAL,\r
1326 TPL_NOTIFY,\r
1327 PxeBcCommonNotify,\r
1328 &IsDone,\r
1329 &Udp6Token.Event\r
1330 );\r
1331 if (EFI_ERROR (Status)) {\r
1332 return EFI_OUT_OF_RESOURCES;\r
1333 }\r
1334 } else {\r
1335 Status = gBS->CreateEvent (\r
1336 EVT_NOTIFY_SIGNAL,\r
1337 TPL_NOTIFY,\r
1338 PxeBcCommonNotify,\r
1339 &IsDone,\r
1340 &Udp4Token.Event\r
1341 );\r
1342 if (EFI_ERROR (Status)) {\r
1343 return EFI_OUT_OF_RESOURCES;\r
1344 }\r
1345 }\r
1346\r
1347 //\r
1348 // Start a timer as timeout event for this blocking API.\r
1349 //\r
1350 gBS->SetTimer (Private->UdpTimeOutEvent, TimerRelative, PXEBC_UDP_TIMEOUT);\r
1351 Mode->IcmpErrorReceived = FALSE;\r
1352\r
1353 //\r
1354 // Read packet by Udp4Read/Udp6Read until matched or timeout.\r
1355 //\r
1356 while (!IsMatched && !EFI_ERROR (Status)) {\r
1357 if (Mode->UsingIpv6) {\r
1358 Status = PxeBcUdp6Read (\r
1359 Private->Udp6Read,\r
1360 &Udp6Token,\r
1361 Mode,\r
1362 Private->UdpTimeOutEvent,\r
1363 OpFlags,\r
1364 &IsDone,\r
1365 &IsMatched,\r
1366 DestIp,\r
1367 DestPort,\r
1368 SrcIp,\r
1369 SrcPort\r
1370 );\r
1371 } else {\r
1372 Status = PxeBcUdp4Read (\r
1373 Private->Udp4Read,\r
1374 &Udp4Token,\r
1375 Mode,\r
1376 Private->UdpTimeOutEvent,\r
1377 OpFlags,\r
1378 &IsDone,\r
1379 &IsMatched,\r
1380 DestIp,\r
1381 DestPort,\r
1382 SrcIp,\r
1383 SrcPort\r
1384 );\r
1385 }\r
1386 }\r
1387\r
1388 if (Status == EFI_ICMP_ERROR ||\r
1389 Status == EFI_NETWORK_UNREACHABLE ||\r
1390 Status == EFI_HOST_UNREACHABLE ||\r
1391 Status == EFI_PROTOCOL_UNREACHABLE ||\r
1392 Status == EFI_PORT_UNREACHABLE) {\r
1393 //\r
1394 // Get different return status for icmp error from Udp, refers to UEFI spec.\r
1395 //\r
1396 Mode->IcmpErrorReceived = TRUE;\r
1397 }\r
1398 gBS->SetTimer (Private->UdpTimeOutEvent, TimerCancel, 0);\r
1399\r
1400 if (IsMatched) {\r
1401 //\r
1402 // Copy the rececived packet to user if matched by filter.\r
1403 //\r
a3bcde70
HT		 1404 if (Mode->UsingIpv6) {\r
1405 Udp6Rx = Udp6Token.Packet.RxData;\r
1406 ASSERT (Udp6Rx != NULL);\r
eb2710af 1407\r
1408 HeaderLen = 0;\r
a3bcde70 1409 if (HeaderSize != NULL) {\r
eb2710af 1410 HeaderLen = MIN (*HeaderSize, Udp6Rx->DataLength);\r
a3bcde70 1411 }\r
eb2710af 1412\r
1413 if (Udp6Rx->DataLength - HeaderLen > *BufferSize) {\r
a3bcde70
HT		 1414 Status = EFI_BUFFER_TOO_SMALL;\r
1415 } else {\r
d40002ba 1416 if (HeaderSize != NULL) {\r
1417 *HeaderSize = HeaderLen;\r
1418 }\r
eb2710af 1419 *BufferSize = Udp6Rx->DataLength - HeaderLen;\r
1420\r
1421 HeaderCopiedLen = 0;\r
1422 BufferCopiedLen = 0;\r
1423 for (FragmentIndex = 0; FragmentIndex < Udp6Rx->FragmentCount; FragmentIndex++) {\r
1424 FragmentLength = Udp6Rx->FragmentTable[FragmentIndex].FragmentLength;\r
1425 FragmentBuffer = Udp6Rx->FragmentTable[FragmentIndex].FragmentBuffer;\r
1426 if (HeaderCopiedLen + FragmentLength < HeaderLen) {\r
1427 //\r
1428 // Copy the header part of received data.\r
1429 //\r
1430 CopyMem ((UINT8 *) HeaderPtr + HeaderCopiedLen, FragmentBuffer, FragmentLength);\r
1431 HeaderCopiedLen += FragmentLength;\r
1432 } else if (HeaderCopiedLen < HeaderLen) {\r
1433 //\r
1434 // Copy the header part of received data.\r
1435 //\r
1436 CopiedLen = HeaderLen - HeaderCopiedLen;\r
1437 CopyMem ((UINT8 *) HeaderPtr + HeaderCopiedLen, FragmentBuffer, CopiedLen);\r
1438 HeaderCopiedLen += CopiedLen;\r
1439\r
1440 //\r
1441 // Copy the other part of received data.\r
1442 //\r
1443 CopyMem ((UINT8 *) BufferPtr + BufferCopiedLen, FragmentBuffer + CopiedLen, FragmentLength - CopiedLen);\r
1444 BufferCopiedLen += (FragmentLength - CopiedLen);\r
1445 } else {\r
1446 //\r
1447 // Copy the other part of received data.\r
1448 //\r
1449 CopyMem ((UINT8 *) BufferPtr + BufferCopiedLen, FragmentBuffer, FragmentLength);\r
1450 BufferCopiedLen += FragmentLength;\r
1451 }\r
1452 }\r
a3bcde70
HT		 1453 }\r
1454 //\r
1455 // Recycle the receiving buffer after copy to user.\r
1456 //\r
1457 gBS->SignalEvent (Udp6Rx->RecycleSignal);\r
1458 } else {\r
1459 Udp4Rx = Udp4Token.Packet.RxData;\r
1460 ASSERT (Udp4Rx != NULL);\r
eb2710af 1461\r
1462 HeaderLen = 0;\r
a3bcde70 1463 if (HeaderSize != NULL) {\r
eb2710af 1464 HeaderLen = MIN (*HeaderSize, Udp4Rx->DataLength);\r
a3bcde70 1465 }\r
eb2710af 1466\r
1467 if (Udp4Rx->DataLength - HeaderLen > *BufferSize) {\r
a3bcde70
HT		 1468 Status = EFI_BUFFER_TOO_SMALL;\r
1469 } else {\r
d40002ba 1470 if (HeaderSize != NULL) {\r
1471 *HeaderSize = HeaderLen;\r
1472 }\r
eb2710af 1473 *BufferSize = Udp4Rx->DataLength - HeaderLen;\r
1474\r
1475 HeaderCopiedLen = 0;\r
1476 BufferCopiedLen = 0;\r
1477 for (FragmentIndex = 0; FragmentIndex < Udp4Rx->FragmentCount; FragmentIndex++) {\r
1478 FragmentLength = Udp4Rx->FragmentTable[FragmentIndex].FragmentLength;\r
1479 FragmentBuffer = Udp4Rx->FragmentTable[FragmentIndex].FragmentBuffer;\r
1480 if (HeaderCopiedLen + FragmentLength < HeaderLen) {\r
1481 //\r
1482 // Copy the header part of received data.\r
1483 //\r
1484 CopyMem ((UINT8 *) HeaderPtr + HeaderCopiedLen, FragmentBuffer, FragmentLength);\r
1485 HeaderCopiedLen += FragmentLength;\r
1486 } else if (HeaderCopiedLen < HeaderLen) {\r
1487 //\r
1488 // Copy the header part of received data.\r
1489 //\r
1490 CopiedLen = HeaderLen - HeaderCopiedLen;\r
1491 CopyMem ((UINT8 *) HeaderPtr + HeaderCopiedLen, FragmentBuffer, CopiedLen);\r
1492 HeaderCopiedLen += CopiedLen;\r
1493\r
1494 //\r
1495 // Copy the other part of received data.\r
1496 //\r
1497 CopyMem ((UINT8 *) BufferPtr + BufferCopiedLen, FragmentBuffer + CopiedLen, FragmentLength - CopiedLen);\r
1498 BufferCopiedLen += (FragmentLength - CopiedLen);\r
1499 } else {\r
1500 //\r
1501 // Copy the other part of received data.\r
1502 //\r
1503 CopyMem ((UINT8 *) BufferPtr + BufferCopiedLen, FragmentBuffer, FragmentLength);\r
1504 BufferCopiedLen += FragmentLength;\r
1505 }\r
1506 }\r
a3bcde70
HT		 1507 }\r
1508 //\r
1509 // Recycle the receiving buffer after copy to user.\r
1510 //\r
1511 gBS->SignalEvent (Udp4Rx->RecycleSignal);\r
1512 }\r
1513 }\r
1514\r
1515 if (Mode->UsingIpv6) {\r
1516 Private->Udp6Read->Cancel (Private->Udp6Read, &Udp6Token);\r
1517 gBS->CloseEvent (Udp6Token.Event);\r
1518 } else {\r
1519 Private->Udp4Read->Cancel (Private->Udp4Read, &Udp4Token);\r
1520 gBS->CloseEvent (Udp4Token.Event);\r
1521 }\r
1522\r
1523 return Status;\r
1524}\r
1525\r
1526\r
1527/**\r
1528 Updates the IP receive filters of a network device and enables software filtering.\r
1529\r
1530 The NewFilter field is used to modify the network device's current IP receive\r
1531 filter settings and to enable a software filter. This function updates the IpFilter\r
1532 field of the EFI_PXE_BASE_CODE_MODE structure with the contents of NewIpFilter.\r
1533 The software filter is used when the USE_FILTER in OpFlags is set to UdpRead().\r
1534 The current hardware filter remains in effect no matter what the settings of OpFlags.\r
1535 This is so that the meaning of ANY_DEST_IP set in OpFlags to UdpRead() is from those\r
1536 packets whose reception is enabled in hardware-physical NIC address (unicast),\r
1537 broadcast address, logical address or addresses (multicast), or all (promiscuous).\r
1538 UdpRead() does not modify the IP filter settings.\r
1539 Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP receive\r
1540 filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.\r
1541 If an application or driver wishes to preserve the IP receive filter settings,\r
1542 it will have to preserve the IP receive filter settings before these calls, and\r
1543 use SetIpFilter() to restore them after the calls. If incompatible filtering is\r
1544 requested (for example, PROMISCUOUS with anything else), or if the device does not\r
1545 support a requested filter setting and it cannot be accommodated in software\r
1546 (for example, PROMISCUOUS not supported), EFI_INVALID_PARAMETER will be returned.\r
1547 The IPlist field is used to enable IPs other than the StationIP. They may be\r
1548 multicast or unicast. If IPcnt is set as well as EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP,\r
1549 then both the StationIP and the IPs from the IPlist will be used.\r
1550\r
1551 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
1552 @param[in] NewFilter Pointer to the new set of IP receive filters.\r
1553\r
1554 @retval EFI_SUCCESS The IP receive filter settings were updated.\r
1555 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
1556 @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
1557\r
1558**/\r
1559EFI_STATUS\r
1560EFIAPI\r
1561EfiPxeBcSetIpFilter (\r
1562 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
1563 IN EFI_PXE_BASE_CODE_IP_FILTER *NewFilter\r
1564 )\r
1565{\r
1566 EFI_STATUS Status;\r
1567 PXEBC_PRIVATE_DATA *Private;\r
1568 EFI_PXE_BASE_CODE_MODE *Mode;\r
18127352 1569 EFI_UDP4_CONFIG_DATA *Udp4Cfg;\r
1570 EFI_UDP6_CONFIG_DATA *Udp6Cfg;\r
a3bcde70
HT		 1571 UINTN Index;\r
1572 BOOLEAN NeedPromiscuous;\r
18127352 1573 BOOLEAN AcceptPromiscuous;\r
1574 BOOLEAN AcceptBroadcast;\r
1575 BOOLEAN MultiCastUpdate;\r
a3bcde70
HT		 1576\r
1577 if (This == NULL || NewFilter == NULL) {\r
1578 return EFI_INVALID_PARAMETER;\r
1579 }\r
1580\r
1581 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
1582 Mode = Private->PxeBc.Mode;\r
1583 Status = EFI_SUCCESS;\r
1584 NeedPromiscuous = FALSE;\r
1585\r
1586 if (!Mode->Started) {\r
1587 return EFI_NOT_STARTED;\r
1588 }\r
1589\r
1590 for (Index = 0; Index < NewFilter->IpCnt; Index++) {\r
1591 ASSERT (Index < EFI_PXE_BASE_CODE_MAX_IPCNT);\r
1592 if (!Mode->UsingIpv6 &&\r
1593 IP4_IS_LOCAL_BROADCAST (EFI_IP4 (NewFilter->IpList[Index].v4))) {\r
1594 //\r
1595 // IPv4 broadcast address should not be in IP filter.\r
1596 //\r
1597 return EFI_INVALID_PARAMETER;\r
1598 }\r
6c12fe63
FS		 1599 if (Mode->UsingIpv6) {\r
1600 if ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) != 0 &&\r
1601 NetIp6IsValidUnicast (&NewFilter->IpList[Index].v6)) {\r
1602 NeedPromiscuous = TRUE;\r
1603 }\r
1604 } else if ((EFI_NTOHL(Mode->StationIp) != 0) &&\r
1605 (EFI_NTOHL(Mode->SubnetMask) != 0) &&\r
1606 IP4_NET_EQUAL(EFI_NTOHL(Mode->StationIp), EFI_NTOHL(NewFilter->IpList[Index].v4), EFI_NTOHL(Mode->SubnetMask.v4)) &&\r
1607 NetIp4IsUnicast (EFI_IP4 (NewFilter->IpList[Index].v4), EFI_NTOHL(Mode->SubnetMask)) &&\r
1608 ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) != 0)) {\r
a3bcde70
HT		 1609 NeedPromiscuous = TRUE;\r
1610 }\r
1611 }\r
1612\r
18127352 1613 AcceptPromiscuous = FALSE;\r
1614 AcceptBroadcast = FALSE;\r
1615 MultiCastUpdate = FALSE;\r
a3bcde70
HT		 1616\r
1617 if (NeedPromiscuous ||\r
1618 (NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS) != 0 ||\r
1619 (NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS_MULTICAST) != 0) {\r
1620 //\r
1621 // Configure UDPv4/UDPv6 as promiscuous mode to receive all packets.\r
1622 //\r
18127352 1623 AcceptPromiscuous = TRUE;\r
a3bcde70
HT		 1624 } else if ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_BROADCAST) != 0) {\r
1625 //\r
1626 // Configure UDPv4 to receive all broadcast packets.\r
1627 //\r
18127352 1628 AcceptBroadcast = TRUE;\r
a3bcde70
HT		 1629 }\r
1630\r
1631 //\r
18127352 1632 // In multicast condition when Promiscuous FALSE and IpCnt no-zero.\r
1633 // Here check if there is any update of the multicast ip address. If yes,\r
1634 // we need leave the old multicast group (by Config UDP instance to NULL),\r
1635 // and join the new multicast group.\r
a3bcde70 1636 //\r
18127352 1637 if (!AcceptPromiscuous) {\r
1638 if ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) != 0) {\r
1639 if (Mode->IpFilter.IpCnt != NewFilter->IpCnt) {\r
1640 MultiCastUpdate = TRUE;\r
1641 } else if (CompareMem (Mode->IpFilter.IpList, NewFilter->IpList, NewFilter->IpCnt * sizeof (EFI_IP_ADDRESS)) != 0 ) {\r
1642 MultiCastUpdate = TRUE;\r
1643 }\r
1644 }\r
a3bcde70
HT		 1645 }\r
1646\r
18127352 1647 if (!Mode->UsingIpv6) {\r
1648 //\r
1649 // Check whether we need reconfigure the UDP4 instance.\r
1650 //\r
1651 Udp4Cfg = &Private->Udp4CfgData;\r
1652 if ((AcceptPromiscuous != Udp4Cfg->AcceptPromiscuous) ||\r
1653 (AcceptBroadcast != Udp4Cfg->AcceptBroadcast) || MultiCastUpdate) {\r
1654 //\r
1655 // Clear the UDP4 instance configuration, all joined groups will be left\r
1656 // during the operation.\r
a3bcde70 1657 //\r
18127352 1658 Private->Udp4Read->Configure (Private->Udp4Read, NULL);\r
1659 \r
a3bcde70 1660 //\r
18127352 1661 // Configure the UDP instance with the new configuration.\r
1662 //\r
1663 Udp4Cfg->AcceptPromiscuous = AcceptPromiscuous;\r
1664 Udp4Cfg->AcceptBroadcast = AcceptBroadcast;\r
1665 Status = Private->Udp4Read->Configure (Private->Udp4Read, Udp4Cfg);\r
1666 if (EFI_ERROR (Status)) {\r
1667 return Status;\r
1668 }\r
1669 \r
1670 //\r
1671 // In not Promiscuous mode, need to join the new multicast group.\r
1672 //\r
1673 if (!AcceptPromiscuous) {\r
1674 for (Index = 0; Index < NewFilter->IpCnt; ++Index) {\r
1675 if (IP4_IS_MULTICAST (EFI_NTOHL (NewFilter->IpList[Index].v4))) {\r
1676 //\r
1677 // Join the mutilcast group.\r
1678 //\r
1679 Status = Private->Udp4Read->Groups (Private->Udp4Read, TRUE, &NewFilter->IpList[Index].v4);\r
1680 if (EFI_ERROR (Status)) {\r
1681 return Status;\r
1682 }\r
a3bcde70
HT		 1683 }\r
1684 }\r
18127352 1685 }\r
1686 }\r
1687 } else {\r
1688 //\r
1689 // Check whether we need reconfigure the UDP6 instance.\r
1690 //\r
1691 Udp6Cfg = &Private->Udp6CfgData;\r
1692 if ((AcceptPromiscuous != Udp6Cfg->AcceptPromiscuous) || MultiCastUpdate) {\r
1693 //\r
1694 // Clear the UDP6 instance configuration, all joined groups will be left\r
1695 // during the operation.\r
1696 //\r
1697 Private->Udp6Read->Configure (Private->Udp6Read, NULL);\r
1698 \r
1699 //\r
1700 // Configure the UDP instance with the new configuration.\r
1701 //\r
1702 Udp6Cfg->AcceptPromiscuous = AcceptPromiscuous;\r
1703 Status = Private->Udp6Read->Configure (Private->Udp6Read, Udp6Cfg);\r
1704 if (EFI_ERROR (Status)) {\r
1705 return Status;\r
1706 }\r
1707 \r
1708 //\r
1709 // In not Promiscuous mode, need to join the new multicast group.\r
1710 //\r
1711 if (!AcceptPromiscuous) {\r
1712 for (Index = 0; Index < NewFilter->IpCnt; ++Index) {\r
1713 if (IP6_IS_MULTICAST (&NewFilter->IpList[Index].v6)) {\r
1714 //\r
1715 // Join the mutilcast group.\r
1716 //\r
1717 Status = Private->Udp6Read->Groups (Private->Udp6Read, TRUE, &NewFilter->IpList[Index].v6);\r
1718 if (EFI_ERROR (Status)) {\r
1719 return Status;\r
1720 }\r
a3bcde70
HT		 1721 }\r
1722 }\r
1723 }\r
1724 }\r
1725 }\r
1726\r
1727 //\r
1728 // Save the new IP filter into mode data.\r
1729 //\r
1730 CopyMem (&Mode->IpFilter, NewFilter, sizeof (Mode->IpFilter));\r
1731\r
a3bcde70
HT		 1732 return Status;\r
1733}\r
1734\r
1735\r
1736/**\r
1737 Uses the ARP protocol to resolve a MAC address. It is not supported for IPv6.\r
1738\r
1739 This function uses the ARP protocol to resolve a MAC address. The IP address specified\r
1740 by IpAddr is used to resolve a MAC address. If the ARP protocol succeeds in resolving\r
1741 the specified address, then the ArpCacheEntries and ArpCache fields of the mode data\r
1742 are updated, and EFI_SUCCESS is returned. If MacAddr is not NULL, the resolved\r
1743 MAC address is placed there as well. If the PXE Base Code protocol is in the\r
1744 stopped state, then EFI_NOT_STARTED is returned. If the ARP protocol encounters\r
1745 a timeout condition while attempting to resolve an address, then EFI_TIMEOUT is\r
1746 returned. If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,\r
1747 then EFI_ABORTED is returned.\r
1748\r
1749 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
1750 @param[in] IpAddr Pointer to the IP address that is used to resolve a MAC address.\r
1751 @param[in] MacAddr If not NULL, a pointer to the MAC address that was resolved with the\r
1752 ARP protocol.\r
1753\r
1754 @retval EFI_SUCCESS The IP or MAC address was resolved.\r
1755 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
1756 @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
1757 @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.\r
1758 @retval EFI_ICMP_ERROR An error occur with the ICMP packet message.\r
1759\r
1760**/\r
1761EFI_STATUS\r
1762EFIAPI\r
1763EfiPxeBcArp (\r
1764 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
1765 IN EFI_IP_ADDRESS *IpAddr,\r
1766 IN EFI_MAC_ADDRESS *MacAddr OPTIONAL\r
1767 )\r
1768{\r
1769 PXEBC_PRIVATE_DATA *Private;\r
1770 EFI_PXE_BASE_CODE_MODE *Mode;\r
1771 EFI_EVENT ResolvedEvent;\r
1772 EFI_STATUS Status;\r
1773 EFI_MAC_ADDRESS TempMac;\r
1774 EFI_MAC_ADDRESS ZeroMac;\r
1775 BOOLEAN IsResolved;\r
1776\r
1777 if (This == NULL || IpAddr == NULL) {\r
1778 return EFI_INVALID_PARAMETER;\r
1779 }\r
1780\r
1781 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
1782 Mode = Private->PxeBc.Mode;\r
1783 ResolvedEvent = NULL;\r
1784 Status = EFI_SUCCESS;\r
1785 IsResolved = FALSE;\r
1786\r
1787 if (!Mode->Started) {\r
1788 return EFI_NOT_STARTED;\r
1789 }\r
1790\r
1791 if (Mode->UsingIpv6) {\r
1792 return EFI_UNSUPPORTED;\r
1793 }\r
1794\r
1795 //\r
1796 // Station address should be ready before do arp.\r
1797 //\r
1798 if (!Private->IsAddressOk) {\r
1799 return EFI_INVALID_PARAMETER;\r
1800 }\r
1801\r
1802 Mode->IcmpErrorReceived = FALSE;\r
1803 ZeroMem (&TempMac, sizeof (EFI_MAC_ADDRESS));\r
1804 ZeroMem (&ZeroMac, sizeof (EFI_MAC_ADDRESS));\r
1805\r
1806 if (!Mode->AutoArp) {\r
1807 //\r
1808 // If AutoArp is FALSE, only search in the current Arp cache.\r
1809 //\r
1810 PxeBcArpCacheUpdate (NULL, Private);\r
1811 if (!PxeBcCheckArpCache (Mode, &IpAddr->v4, &TempMac)) {\r
1812 Status = EFI_DEVICE_ERROR;\r
1813 goto ON_EXIT;\r
1814 }\r
1815 } else {\r
1816 Status = gBS->CreateEvent (\r
1817 EVT_NOTIFY_SIGNAL,\r
1818 TPL_NOTIFY,\r
1819 PxeBcCommonNotify,\r
1820 &IsResolved,\r
1821 &ResolvedEvent\r
1822 );\r
1823 if (EFI_ERROR (Status)) {\r
1824 goto ON_EXIT;\r
1825 }\r
1826\r
1827 //\r
1828 // If AutoArp is TRUE, try to send Arp request on initiative.\r
1829 //\r
1830 Status = Private->Arp->Request (Private->Arp, &IpAddr->v4, ResolvedEvent, &TempMac);\r
1831 if (EFI_ERROR (Status) && Status != EFI_NOT_READY) {\r
1832 goto ON_EXIT;\r
1833 }\r
1834\r
1835 while (!IsResolved) {\r
1836 if (CompareMem (&TempMac, &ZeroMac, sizeof (EFI_MAC_ADDRESS)) != 0) {\r
1837 break;\r
1838 }\r
1839 }\r
1840 if (CompareMem (&TempMac, &ZeroMac, sizeof (EFI_MAC_ADDRESS)) != 0) {\r
1841 Status = EFI_SUCCESS;\r
1842 } else {\r
1843 Status = EFI_TIMEOUT;\r
1844 }\r
1845 }\r
1846\r
1847 //\r
1848 // Copy the Mac address to user if needed.\r
1849 //\r
1850 if (MacAddr != NULL && !EFI_ERROR (Status)) {\r
1851 CopyMem (MacAddr, &TempMac, sizeof (EFI_MAC_ADDRESS));\r
1852 }\r
1853\r
1854ON_EXIT:\r
1855 if (ResolvedEvent != NULL) {\r
1856 gBS->CloseEvent (ResolvedEvent);\r
1857 }\r
1858 return Status;\r
1859}\r
1860\r
1861\r
1862/**\r
1863 Updates the parameters that affect the operation of the PXE Base Code Protocol.\r
1864\r
1865 This function sets parameters that affect the operation of the PXE Base Code Protocol.\r
1866 The parameter specified by NewAutoArp is used to control the generation of ARP\r
1867 protocol packets. If NewAutoArp is TRUE, then ARP Protocol packets will be generated\r
1868 as required by the PXE Base Code Protocol. If NewAutoArp is FALSE, then no ARP\r
1869 Protocol packets will be generated. In this case, the only mappings that are\r
1870 available are those stored in the ArpCache of the EFI_PXE_BASE_CODE_MODE structure.\r
1871 If there are not enough mappings in the ArpCache to perform a PXE Base Code Protocol\r
1872 service, then the service will fail. This function updates the AutoArp field of\r
1873 the EFI_PXE_BASE_CODE_MODE structure to NewAutoArp.\r
1874 The SetParameters() call must be invoked after a Callback Protocol is installed\r
1875 to enable the use of callbacks.\r
1876\r
1877 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
1878 @param[in] NewAutoArp If not NULL, a pointer to a value that specifies whether to replace the\r
1879 current value of AutoARP.\r
1880 @param[in] NewSendGUID If not NULL, a pointer to a value that specifies whether to replace the\r
1881 current value of SendGUID.\r
1882 @param[in] NewTTL If not NULL, a pointer to be used in place of the current value of TTL,\r
1883 the "time to live" field of the IP header.\r
1884 @param[in] NewToS If not NULL, a pointer to be used in place of the current value of ToS,\r
1885 the "type of service" field of the IP header.\r
1886 @param[in] NewMakeCallback If not NULL, a pointer to a value that specifies whether to replace the\r
1887 current value of the MakeCallback field of the Mode structure.\r
1888\r
1889 @retval EFI_SUCCESS The new parameters values were updated.\r
1890 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
1891 @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
1892\r
1893**/\r
1894EFI_STATUS\r
1895EFIAPI\r
1896EfiPxeBcSetParameters (\r
1897 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
1898 IN BOOLEAN *NewAutoArp OPTIONAL,\r
1899 IN BOOLEAN *NewSendGUID OPTIONAL,\r
1900 IN UINT8 *NewTTL OPTIONAL,\r
1901 IN UINT8 *NewToS OPTIONAL,\r
1902 IN BOOLEAN *NewMakeCallback OPTIONAL\r
1903 )\r
1904{\r
1905 PXEBC_PRIVATE_DATA *Private;\r
1906 EFI_PXE_BASE_CODE_MODE *Mode;\r
1907 EFI_GUID SystemGuid;\r
1908 EFI_STATUS Status;\r
1909\r
1910 if (This == NULL) {\r
1911 return EFI_INVALID_PARAMETER;\r
1912 }\r
1913\r
1914 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
1915 Mode = Private->PxeBc.Mode;\r
1916\r
1917 if (!Mode->Started) {\r
1918 return EFI_NOT_STARTED;\r
1919 }\r
1920\r
1921 if (NewMakeCallback != NULL) {\r
1922 if (*NewMakeCallback) {\r
1923 //\r
1924 // Update the previous PxeBcCallback protocol.\r
1925 //\r
1926 Status = gBS->HandleProtocol (\r
1927 Private->Controller,\r
1928 &gEfiPxeBaseCodeCallbackProtocolGuid,\r
1929 (VOID **) &Private->PxeBcCallback\r
1930 );\r
1931\r
1932 if (EFI_ERROR (Status) || (Private->PxeBcCallback->Callback == NULL)) {\r
1933 return EFI_INVALID_PARAMETER;\r
1934 }\r
1935 } else {\r
1936 Private->PxeBcCallback = NULL;\r
1937 }\r
1938 Mode->MakeCallbacks = *NewMakeCallback;\r
1939 }\r
1940\r
1941 if (NewSendGUID != NULL) {\r
19ddbb25 1942 if (*NewSendGUID && EFI_ERROR (NetLibGetSystemGuid (&SystemGuid))) {\r
a3bcde70
HT		 1943 return EFI_INVALID_PARAMETER;\r
1944 }\r
1945 Mode->SendGUID = *NewSendGUID;\r
1946 }\r
1947\r
1948 if (NewAutoArp != NULL) {\r
1949 Mode->AutoArp = *NewAutoArp;\r
1950 }\r
1951\r
1952 if (NewTTL != NULL) {\r
1953 Mode->TTL = *NewTTL;\r
1954 }\r
1955\r
1956 if (NewToS != NULL) {\r
1957 Mode->ToS = *NewToS;\r
1958 }\r
1959\r
1960 return EFI_SUCCESS;\r
1961}\r
1962\r
1963\r
1964/**\r
1965 Updates the station IP address and/or subnet mask values of a network device.\r
1966\r
1967 This function updates the station IP address and/or subnet mask values of a network\r
1968 device. The NewStationIp field is used to modify the network device's current IP address.\r
1969 If NewStationIP is NULL, then the current IP address will not be modified. Otherwise,\r
1970 this function updates the StationIp field of the EFI_PXE_BASE_CODE_MODE structure\r
1971 with NewStationIp. The NewSubnetMask field is used to modify the network device's current subnet\r
1972 mask. If NewSubnetMask is NULL, then the current subnet mask will not be modified.\r
1973 Otherwise, this function updates the SubnetMask field of the EFI_PXE_BASE_CODE_MODE\r
1974 structure with NewSubnetMask.\r
1975\r
1976 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
1977 @param[in] NewStationIp Pointer to the new IP address to be used by the network device.\r
1978 @param[in] NewSubnetMask Pointer to the new subnet mask to be used by the network device.\r
1979\r
1980 @retval EFI_SUCCESS The new station IP address and/or subnet mask were updated.\r
1981 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
1982 @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
1983\r
1984**/\r
1985EFI_STATUS\r
1986EFIAPI\r
1987EfiPxeBcSetStationIP (\r
1988 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
1989 IN EFI_IP_ADDRESS *NewStationIp OPTIONAL,\r
1990 IN EFI_IP_ADDRESS *NewSubnetMask OPTIONAL\r
1991 )\r
1992{\r
1993 EFI_STATUS Status;\r
1994 PXEBC_PRIVATE_DATA *Private;\r
1995 EFI_PXE_BASE_CODE_MODE *Mode;\r
1996 EFI_ARP_CONFIG_DATA ArpConfigData;\r
1997\r
1998 if (This == NULL) {\r
1999 return EFI_INVALID_PARAMETER;\r
2000 }\r
2001\r
6c12fe63 2002 if (NewStationIp != NULL && !NetIp6IsValidUnicast (&NewStationIp->v6)) {\r
a3bcde70
HT		 2003 return EFI_INVALID_PARAMETER;\r
2004 }\r
2005\r
2006 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
2007 Mode = Private->PxeBc.Mode;\r
2008 Status = EFI_SUCCESS;\r
2009\r
2010 if (!Mode->UsingIpv6 &&\r
2011 NewSubnetMask != NULL &&\r
2012 !IP4_IS_VALID_NETMASK (NTOHL (NewSubnetMask->Addr[0]))) {\r
2013 return EFI_INVALID_PARAMETER;\r
2014 }\r
2015\r
b3400560
FS		 2016 if (!Mode->UsingIpv6 && NewStationIp != NULL) {\r
2017 if (IP4_IS_UNSPECIFIED(NTOHL (NewStationIp->Addr[0])) || \r
2018 IP4_IS_LOCAL_BROADCAST(NTOHL (NewStationIp->Addr[0])) ||\r
2019 (NewSubnetMask != NULL && !NetIp4IsUnicast (NTOHL (NewStationIp->Addr[0]), NTOHL (NewSubnetMask->Addr[0])))) {\r
2020 return EFI_INVALID_PARAMETER;\r
2021 }\r
6c12fe63 2022 }\r
b3400560 2023 \r
a3bcde70
HT		 2024 if (!Mode->Started) {\r
2025 return EFI_NOT_STARTED;\r
2026 }\r
2027\r
2028 if (Mode->UsingIpv6 && NewStationIp != NULL) {\r
2029 //\r
2030 // Set the IPv6 address by Ip6Config protocol.\r
2031 //\r
2032 Status = PxeBcRegisterIp6Address (Private, &NewStationIp->v6);\r
2033 if (EFI_ERROR (Status)) {\r
2034 goto ON_EXIT;\r
2035 }\r
2036 } else if (!Mode->UsingIpv6 && NewStationIp != NULL) {\r
2037 //\r
2038 // Configure the corresponding ARP with the IPv4 address.\r
2039 //\r
2040 ZeroMem (&ArpConfigData, sizeof (EFI_ARP_CONFIG_DATA));\r
2041\r
2042 ArpConfigData.SwAddressType = 0x0800;\r
2043 ArpConfigData.SwAddressLength = (UINT8) sizeof (EFI_IPv4_ADDRESS);\r
2044 ArpConfigData.StationAddress = &NewStationIp->v4;\r
2045\r
2046 Private->Arp->Configure (Private->Arp, NULL);\r
2047 Private->Arp->Configure (Private->Arp, &ArpConfigData);\r
2048\r
2049 if (NewSubnetMask != NULL) {\r
2050 Mode->RouteTableEntries = 1;\r
2051 Mode->RouteTable[0].IpAddr.Addr[0] = NewStationIp->Addr[0] & NewSubnetMask->Addr[0];\r
2052 Mode->RouteTable[0].SubnetMask.Addr[0] = NewSubnetMask->Addr[0];\r
2053 Mode->RouteTable[0].GwAddr.Addr[0] = 0;\r
2054 }\r
2055\r
2056 Private->IsAddressOk = TRUE;\r
2057 }\r
2058\r
2059 if (NewStationIp != NULL) {\r
2060 CopyMem (&Mode->StationIp, NewStationIp, sizeof (EFI_IP_ADDRESS));\r
2061 CopyMem (&Private->StationIp, NewStationIp, sizeof (EFI_IP_ADDRESS));\r
2062 }\r
2063\r
2064 if (!Mode->UsingIpv6 && NewSubnetMask != NULL) {\r
2065 CopyMem (&Mode->SubnetMask, NewSubnetMask, sizeof (EFI_IP_ADDRESS));\r
2066 CopyMem (&Private->SubnetMask ,NewSubnetMask, sizeof (EFI_IP_ADDRESS));\r
2067 }\r
2068\r
0e7f6f50 2069 Status = PxeBcFlushStationIp (Private, NewStationIp, NewSubnetMask);\r
a3bcde70
HT		 2070ON_EXIT:\r
2071 return Status;\r
2072}\r
2073\r
2074\r
2075/**\r
2076 Updates the contents of the cached DHCP and Discover packets.\r
2077\r
2078 The pointers to the new packets are used to update the contents of the cached\r
2079 packets in the EFI_PXE_BASE_CODE_MODE structure.\r
2080\r
2081 @param[in] This Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.\r
2082 @param[in] NewDhcpDiscoverValid Pointer to a value that will replace the current\r
2083 DhcpDiscoverValid field.\r
2084 @param[in] NewDhcpAckReceived Pointer to a value that will replace the current\r
2085 DhcpAckReceived field.\r
2086 @param[in] NewProxyOfferReceived Pointer to a value that will replace the current\r
2087 ProxyOfferReceived field.\r
2088 @param[in] NewPxeDiscoverValid Pointer to a value that will replace the current\r
2089 ProxyOfferReceived field.\r
2090 @param[in] NewPxeReplyReceived Pointer to a value that will replace the current\r
2091 PxeReplyReceived field.\r
2092 @param[in] NewPxeBisReplyReceived Pointer to a value that will replace the current\r
2093 PxeBisReplyReceived field.\r
2094 @param[in] NewDhcpDiscover Pointer to the new cached DHCP Discover packet contents.\r
2095 @param[in] NewDhcpAck Pointer to the new cached DHCP Ack packet contents.\r
2096 @param[in] NewProxyOffer Pointer to the new cached Proxy Offer packet contents.\r
2097 @param[in] NewPxeDiscover Pointer to the new cached PXE Discover packet contents.\r
2098 @param[in] NewPxeReply Pointer to the new cached PXE Reply packet contents.\r
2099 @param[in] NewPxeBisReply Pointer to the new cached PXE BIS Reply packet contents.\r
2100\r
2101 @retval EFI_SUCCESS The cached packet contents were updated.\r
2102 @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.\r
2103 @retval EFI_INVALID_PARAMETER This is NULL or does not point to a valid\r
2104 EFI_PXE_BASE_CODE_PROTOCOL structure.\r
2105\r
2106**/\r
2107EFI_STATUS\r
2108EFIAPI\r
2109EfiPxeBcSetPackets (\r
2110 IN EFI_PXE_BASE_CODE_PROTOCOL *This,\r
2111 IN BOOLEAN *NewDhcpDiscoverValid OPTIONAL,\r
2112 IN BOOLEAN *NewDhcpAckReceived OPTIONAL,\r
2113 IN BOOLEAN *NewProxyOfferReceived OPTIONAL,\r
2114 IN BOOLEAN *NewPxeDiscoverValid OPTIONAL,\r
2115 IN BOOLEAN *NewPxeReplyReceived OPTIONAL,\r
2116 IN BOOLEAN *NewPxeBisReplyReceived OPTIONAL,\r
2117 IN EFI_PXE_BASE_CODE_PACKET *NewDhcpDiscover OPTIONAL,\r
2118 IN EFI_PXE_BASE_CODE_PACKET *NewDhcpAck OPTIONAL,\r
2119 IN EFI_PXE_BASE_CODE_PACKET *NewProxyOffer OPTIONAL,\r
2120 IN EFI_PXE_BASE_CODE_PACKET *NewPxeDiscover OPTIONAL,\r
2121 IN EFI_PXE_BASE_CODE_PACKET *NewPxeReply OPTIONAL,\r
2122 IN EFI_PXE_BASE_CODE_PACKET *NewPxeBisReply OPTIONAL\r
2123 )\r
2124{\r
2125 PXEBC_PRIVATE_DATA *Private;\r
2126 EFI_PXE_BASE_CODE_MODE *Mode;\r
2127\r
2128 if (This == NULL) {\r
2129 return EFI_INVALID_PARAMETER;\r
2130 }\r
2131\r
2132 Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);\r
2133 Mode = Private->PxeBc.Mode;\r
2134\r
2135 if (!Mode->Started) {\r
2136 return EFI_NOT_STARTED;\r
2137 }\r
2138\r
2139 if (NewDhcpDiscoverValid != NULL) {\r
2140 Mode->DhcpDiscoverValid = *NewDhcpDiscoverValid;\r
2141 }\r
2142\r
2143 if (NewDhcpAckReceived != NULL) {\r
2144 Mode->DhcpAckReceived = *NewDhcpAckReceived;\r
2145 }\r
2146\r
2147 if (NewProxyOfferReceived != NULL) {\r
2148 Mode->ProxyOfferReceived = *NewProxyOfferReceived;\r
2149 }\r
2150\r
2151 if (NewPxeDiscoverValid != NULL) {\r
2152 Mode->PxeDiscoverValid = *NewPxeDiscoverValid;\r
2153 }\r
2154\r
2155 if (NewPxeReplyReceived != NULL) {\r
2156 Mode->PxeReplyReceived = *NewPxeReplyReceived;\r
2157 }\r
2158\r
2159 if (NewPxeBisReplyReceived != NULL) {\r
2160 Mode->PxeBisReplyReceived = *NewPxeBisReplyReceived;\r
2161 }\r
2162\r
2163 if (NewDhcpDiscover != NULL) {\r
2164 CopyMem (&Mode->DhcpDiscover, NewDhcpDiscover, sizeof (EFI_PXE_BASE_CODE_PACKET));\r
2165 }\r
2166\r
2167 if (NewDhcpAck != NULL) {\r
2168 CopyMem (&Mode->DhcpAck, NewDhcpAck, sizeof (EFI_PXE_BASE_CODE_PACKET));\r
2169 }\r
2170\r
2171 if (NewProxyOffer != NULL) {\r
2172 CopyMem (&Mode->ProxyOffer, NewProxyOffer, sizeof (EFI_PXE_BASE_CODE_PACKET));\r
2173 }\r
2174\r
2175 if (NewPxeDiscover != NULL) {\r
2176 CopyMem (&Mode->PxeDiscover, NewPxeDiscover, sizeof (EFI_PXE_BASE_CODE_PACKET));\r
2177 }\r
2178\r
2179 if (NewPxeReply != NULL) {\r
2180 CopyMem (&Mode->PxeReply, NewPxeReply, sizeof (EFI_PXE_BASE_CODE_PACKET));\r
2181 }\r
2182\r
2183 if (NewPxeBisReply != NULL) {\r
2184 CopyMem (&Mode->PxeBisReply, NewPxeBisReply, sizeof (EFI_PXE_BASE_CODE_PACKET));\r
2185 }\r
2186\r
2187 return EFI_SUCCESS;\r
2188}\r
2189\r
2190EFI_PXE_BASE_CODE_PROTOCOL gPxeBcProtocolTemplate = {\r
2191 EFI_PXE_BASE_CODE_PROTOCOL_REVISION,\r
2192 EfiPxeBcStart,\r
2193 EfiPxeBcStop,\r
2194 EfiPxeBcDhcp,\r
2195 EfiPxeBcDiscover,\r
2196 EfiPxeBcMtftp,\r
2197 EfiPxeBcUdpWrite,\r
2198 EfiPxeBcUdpRead,\r
2199 EfiPxeBcSetIpFilter,\r
2200 EfiPxeBcArp,\r
2201 EfiPxeBcSetParameters,\r
2202 EfiPxeBcSetStationIP,\r
2203 EfiPxeBcSetPackets,\r
2204 NULL\r
2205};\r
2206\r
2207\r
2208/**\r
2209 Callback function that is invoked when the PXE Base Code Protocol is about to transmit, has\r
2210 received, or is waiting to receive a packet.\r
2211\r
2212 This function is invoked when the PXE Base Code Protocol is about to transmit, has received,\r
2213 or is waiting to receive a packet. Parameters Function and Received specify the type of event.\r
2214 Parameters PacketLen and Packet specify the packet that generated the event. If these fields\r
2215 are zero and NULL respectively, then this is a status update callback. If the operation specified\r
2216 by Function is to continue, then CALLBACK_STATUS_CONTINUE should be returned. If the operation\r
2217 specified by Function should be aborted, then CALLBACK_STATUS_ABORT should be returned. Due to\r
2218 the polling nature of UEFI device drivers, a callback function should not execute for more than 5 ms.\r
2219 The SetParameters() function must be called after a Callback Protocol is installed to enable the\r
2220 use of callbacks.\r
2221\r
2222 @param[in] This Pointer to the EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL instance.\r
2223 @param[in] Function The PXE Base Code Protocol function that is waiting for an event.\r
2224 @param[in] Received TRUE if the callback is being invoked due to a receive event. FALSE if\r
2225 the callback is being invoked due to a transmit event.\r
2226 @param[in] PacketLength The length, in bytes, of Packet. This field will have a value of zero if\r
2227 this is a wait for receive event.\r
2228 @param[in] PacketPtr If Received is TRUE, a pointer to the packet that was just received;\r
2229 otherwise a pointer to the packet that is about to be transmitted.\r
2230\r
2231 @retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE If Function specifies a continue operation.\r
2232 @retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_ABORT If Function specifies an abort operation.\r
2233\r
2234**/\r
2235EFI_PXE_BASE_CODE_CALLBACK_STATUS\r
2236EFIAPI\r
2237EfiPxeLoadFileCallback (\r
2238 IN EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *This,\r
2239 IN EFI_PXE_BASE_CODE_FUNCTION Function,\r
2240 IN BOOLEAN Received,\r
2241 IN UINT32 PacketLength,\r
2242 IN EFI_PXE_BASE_CODE_PACKET *PacketPtr OPTIONAL\r
2243 )\r
2244{\r
2245 EFI_INPUT_KEY Key;\r
2246 EFI_STATUS Status;\r
2247\r
2248 //\r
2249 // Catch Ctrl-C or ESC to abort.\r
2250 //\r
2251 Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);\r
2252\r
2253 if (!EFI_ERROR (Status)) {\r
2254\r
2255 if (Key.ScanCode == SCAN_ESC || Key.UnicodeChar == (0x1F & 'c')) {\r
2256\r
2257 return EFI_PXE_BASE_CODE_CALLBACK_STATUS_ABORT;\r
2258 }\r
2259 }\r
2260 //\r
2261 // No print if receive packet\r
2262 //\r
2263 if (Received) {\r
2264 return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;\r
2265 }\r
2266 //\r
2267 // Print only for three functions\r
2268 //\r
2269 switch (Function) {\r
2270\r
2271 case EFI_PXE_BASE_CODE_FUNCTION_MTFTP:\r
2272 //\r
2273 // Print only for open MTFTP packets, not every MTFTP packets\r
2274 //\r
2275 if (PacketLength != 0 && PacketPtr != NULL) {\r
2276 if (PacketPtr->Raw[0x1C] != 0x00 || PacketPtr->Raw[0x1D] != 0x01) {\r
2277 return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;\r
2278 }\r
2279 }\r
2280 break;\r
2281\r
2282 case EFI_PXE_BASE_CODE_FUNCTION_DHCP:\r
2283 case EFI_PXE_BASE_CODE_FUNCTION_DISCOVER:\r
2284 break;\r
2285\r
2286 default:\r
2287 return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;\r
2288 }\r
2289\r
2290 if (PacketLength != 0 && PacketPtr != NULL) {\r
2291 //\r
2292 // Print '.' when transmit a packet\r
2293 //\r
2294 AsciiPrint (".");\r
2295 }\r
2296\r
2297 return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;\r
2298}\r
2299\r
2300EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL gPxeBcCallBackTemplate = {\r
2301 EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL_REVISION,\r
2302 EfiPxeLoadFileCallback\r
2303};\r
2304\r
2305\r
2306/**\r
2307 Causes the driver to load a specified file.\r
2308\r
2309 @param[in] This Protocol instance pointer.\r
2310 @param[in] FilePath The device specific path of the file to load.\r
2311 @param[in] BootPolicy If TRUE, indicates that the request originates from the\r
2312 boot manager is attempting to load FilePath as a boot\r
2313 selection. If FALSE, then FilePath must match an exact file\r
2314 to be loaded.\r
2315 @param[in, out] BufferSize On input the size of Buffer in bytes. On output with a return\r
2316 code of EFI_SUCCESS, the amount of data transferred to\r
2317 Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,\r
2318 the size of Buffer required to retrieve the requested file.\r
2319 @param[in] Buffer The memory buffer to transfer the file to. IF Buffer is NULL,\r
2320 then no the size of the requested file is returned in\r
2321 BufferSize.\r
2322\r
2323 @retval EFI_SUCCESS The file was loaded.\r
2324 @retval EFI_UNSUPPORTED The device does not support the provided BootPolicy.\r
2325 @retval EFI_INVALID_PARAMETER FilePath is not a valid device path, or\r
2326 BufferSize is NULL.\r
2327 @retval EFI_NO_MEDIA No medium was present to load the file.\r
2328 @retval EFI_DEVICE_ERROR The file was not loaded due to a device error.\r
2329 @retval EFI_NO_RESPONSE The remote system did not respond.\r
2330 @retval EFI_NOT_FOUND The file was not found.\r
2331 @retval EFI_ABORTED The file load process was manually cancelled.\r
2332\r
2333**/\r
2334EFI_STATUS\r
2335EFIAPI\r
2336EfiPxeLoadFile (\r
2337 IN EFI_LOAD_FILE_PROTOCOL *This,\r
2338 IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r
2339 IN BOOLEAN BootPolicy,\r
2340 IN OUT UINTN *BufferSize,\r
2341 IN VOID *Buffer OPTIONAL\r
2342 )\r
2343{\r
2344 PXEBC_PRIVATE_DATA *Private;\r
2345 PXEBC_VIRTUAL_NIC *VirtualNic;\r
2346 EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;\r
2347 BOOLEAN UsingIpv6;\r
2348 EFI_STATUS Status;\r
2349 BOOLEAN MediaPresent;\r
2350\r
94d449f5
ZL		 2351 if (FilePath == NULL || !IsDevicePathEnd (FilePath)) {\r
2352 return EFI_INVALID_PARAMETER;\r
2353 }\r
2354 \r
a3bcde70
HT		 2355 VirtualNic = PXEBC_VIRTUAL_NIC_FROM_LOADFILE (This);\r
2356 Private = VirtualNic->Private;\r
2357 PxeBc = &Private->PxeBc;\r
2358 UsingIpv6 = FALSE;\r
2359 Status = EFI_DEVICE_ERROR;\r
2360\r
2361 if (This == NULL || BufferSize == NULL) {\r
2362 return EFI_INVALID_PARAMETER;\r
2363 }\r
2364\r
2365 //\r
2366 // Only support BootPolicy\r
2367 //\r
2368 if (!BootPolicy) {\r
2369 return EFI_UNSUPPORTED;\r
2370 }\r
2371\r
2372 //\r
2373 // Check media status before PXE start\r
2374 //\r
2375 MediaPresent = TRUE;\r
2376 NetLibDetectMedia (Private->Controller, &MediaPresent);\r
2377 if (!MediaPresent) {\r
2378 return EFI_NO_MEDIA;\r
2379 }\r
2380\r
2381 //\r
2382 // Check whether the virtual nic is using IPv6 or not.\r
2383 //\r
2384 if (VirtualNic == Private->Ip6Nic) {\r
2385 UsingIpv6 = TRUE;\r
2386 }\r
2387\r
2388 //\r
2389 // Start Pxe Base Code to initialize PXE boot.\r
2390 //\r
2391 Status = PxeBc->Start (PxeBc, UsingIpv6);\r
75dce340 2392 if (Status == EFI_ALREADY_STARTED && UsingIpv6 != PxeBc->Mode->UsingIpv6) {\r
2393 //\r
2394 // PxeBc protocol has already been started but not on the required IP version, restart it.\r
2395 //\r
2396 Status = PxeBc->Stop (PxeBc);\r
2397 if (!EFI_ERROR (Status)) {\r
2398 Status = PxeBc->Start (PxeBc, UsingIpv6);\r
2399 }\r
2400 }\r
a3bcde70
HT		 2401 if (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED) {\r
2402 Status = PxeBcLoadBootFile (Private, BufferSize, Buffer);\r
2403 }\r
2404\r
2405 if (Status != EFI_SUCCESS &&\r
2406 Status != EFI_UNSUPPORTED &&\r
2407 Status != EFI_BUFFER_TOO_SMALL) {\r
2408 //\r
2409 // There are three cases, which needn't stop pxebc here.\r
2410 // 1. success to download file.\r
2411 // 2. success to get file size.\r
2412 // 3. unsupported.\r
2413 //\r
2414 PxeBc->Stop (PxeBc);\r
c4764504
FS		 2415 } else {\r
2416 //\r
2417 // The DHCP4 can have only one configured child instance so we need to stop\r
2418 // reset the DHCP4 child before we return. Otherwise these programs which \r
2419 // also need to use DHCP4 will be impacted.\r
2420 //\r
2421 if (!PxeBc->Mode->UsingIpv6) {\r
2422 Private->Dhcp4->Stop (Private->Dhcp4);\r
2423 Private->Dhcp4->Configure (Private->Dhcp4, NULL);\r
2424 }\r
a3bcde70
HT		 2425 }\r
2426\r
2427 return Status;\r
2428}\r
2429\r
2430EFI_LOAD_FILE_PROTOCOL gLoadFileProtocolTemplate = { EfiPxeLoadFile };\r
2431\r
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