]>
Commit | Line | Data |
---|---|---|
9166f840 | 1 | /** @file\r |
2 | Provide IPsec Key Exchange (IKE) service general interfaces.\r | |
3 | \r | |
76389e18 | 4 | Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>\r |
9166f840 | 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 "IkeService.h"\r | |
17 | #include "IpSecConfigImpl.h"\r | |
18 | #include "Ikev2/Utility.h"\r | |
19 | \r | |
20 | IKE_EXCHANGE_INTERFACE *mIkeExchange[] = {\r | |
21 | &mIkev1Exchange,\r | |
22 | &mIkev2Exchange\r | |
23 | };\r | |
24 | \r | |
25 | EFI_UDP4_CONFIG_DATA mUdp4Conf = {\r | |
26 | FALSE,\r | |
27 | FALSE,\r | |
28 | FALSE,\r | |
29 | TRUE,\r | |
30 | //\r | |
31 | // IO parameters\r | |
32 | //\r | |
33 | 0,\r | |
34 | 64,\r | |
35 | FALSE,\r | |
36 | 0,\r | |
37 | 1000000,\r | |
38 | FALSE,\r | |
39 | {0,0,0,0},\r | |
40 | {0,0,0,0},\r | |
41 | IKE_DEFAULT_PORT,\r | |
42 | {0,0,0,0},\r | |
43 | 0\r | |
44 | };\r | |
45 | \r | |
46 | EFI_UDP6_CONFIG_DATA mUdp6Conf = {\r | |
47 | FALSE,\r | |
48 | FALSE,\r | |
49 | TRUE,\r | |
50 | //\r | |
51 | // IO parameters\r | |
52 | //\r | |
53 | 0,\r | |
54 | 128,\r | |
55 | 0,\r | |
56 | 1000000,\r | |
57 | //Access Point\r | |
58 | {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},\r | |
59 | IKE_DEFAULT_PORT,\r | |
60 | {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},\r | |
61 | 0\r | |
62 | };\r | |
63 | \r | |
64 | /**\r | |
65 | Check if the NIC handle is binded to a Udp service.\r | |
66 | \r | |
67 | @param[in] Private Pointer of IPSEC_PRIVATE_DATA.\r | |
76389e18 | 68 | @param[in] Handle The Handle of the NIC card.\r |
9166f840 | 69 | @param[in] IpVersion The version of the IP stack.\r |
70 | \r | |
71 | @return a pointer of IKE_UDP_SERVICE.\r | |
72 | \r | |
73 | **/\r | |
74 | IKE_UDP_SERVICE *\r | |
75 | IkeLookupUdp (\r | |
76 | IN IPSEC_PRIVATE_DATA *Private,\r | |
77 | IN EFI_HANDLE Handle,\r | |
78 | IN UINT8 IpVersion\r | |
79 | )\r | |
80 | {\r | |
81 | LIST_ENTRY *Head;\r | |
82 | LIST_ENTRY *Entry;\r | |
83 | LIST_ENTRY *Next;\r | |
84 | IKE_UDP_SERVICE *Udp;\r | |
85 | \r | |
86 | Udp = NULL;\r | |
87 | Head = (IpVersion == IP_VERSION_4) ? &Private->Udp4List : &Private->Udp6List;\r | |
88 | \r | |
89 | NET_LIST_FOR_EACH_SAFE (Entry, Next, Head) {\r | |
90 | \r | |
91 | Udp = IPSEC_UDP_SERVICE_FROM_LIST (Entry);\r | |
92 | //\r | |
93 | // Find the right udp service which installed on the appointed NIC handle.\r | |
94 | //\r | |
95 | if (Handle == Udp->NicHandle) {\r | |
96 | break;\r | |
97 | } else {\r | |
98 | Udp = NULL;\r | |
99 | }\r | |
100 | }\r | |
101 | \r | |
102 | return Udp;\r | |
103 | }\r | |
104 | \r | |
105 | /**\r | |
106 | Configure a UDPIO's UDP4 instance.\r | |
107 | \r | |
108 | This fuction is called by the UdpIoCreateIo() to configures a \r | |
109 | UDP4 instance.\r | |
110 | \r | |
111 | @param[in] UdpIo The UDP_IO to be configured.\r | |
112 | @param[in] Context User-defined data when calling UdpIoCreateIo().\r | |
113 | \r | |
114 | @retval EFI_SUCCESS The configuration succeeded.\r | |
115 | @retval Others The UDP4 instance fails to configure.\r | |
116 | \r | |
117 | **/\r | |
118 | EFI_STATUS\r | |
1d8fa5e9 | 119 | EFIAPI\r |
9166f840 | 120 | IkeConfigUdp4 (\r |
121 | IN UDP_IO *UdpIo,\r | |
122 | IN VOID *Context\r | |
123 | )\r | |
124 | {\r | |
125 | EFI_UDP4_CONFIG_DATA Udp4Cfg;\r | |
126 | EFI_UDP4_PROTOCOL *Udp4;\r | |
127 | \r | |
128 | ZeroMem (&Udp4Cfg, sizeof (EFI_UDP4_CONFIG_DATA));\r | |
129 | \r | |
130 | Udp4 = UdpIo->Protocol.Udp4;\r | |
131 | CopyMem (\r | |
132 | &Udp4Cfg,\r | |
133 | &mUdp4Conf,\r | |
134 | sizeof (EFI_UDP4_CONFIG_DATA)\r | |
135 | );\r | |
136 | \r | |
137 | if (Context != NULL) {\r | |
138 | //\r | |
139 | // Configure udp4 io with local default address.\r | |
140 | //\r | |
141 | Udp4Cfg.UseDefaultAddress = TRUE;\r | |
142 | }\r | |
143 | \r | |
144 | return Udp4->Configure (Udp4, &Udp4Cfg);\r | |
145 | }\r | |
146 | \r | |
147 | /**\r | |
148 | Configure a UDPIO's UDP6 instance.\r | |
149 | \r | |
150 | This fuction is called by the UdpIoCreateIo()to configure a \r | |
151 | UDP6 instance.\r | |
152 | \r | |
153 | @param[in] UdpIo The UDP_IO to be configured.\r | |
154 | @param[in] Context User-defined data when calling UdpIoCreateIo().\r | |
155 | \r | |
156 | @retval EFI_SUCCESS The configuration succeeded.\r | |
157 | @retval Others The configuration fails.\r | |
158 | \r | |
159 | **/\r | |
160 | EFI_STATUS\r | |
1d8fa5e9 | 161 | EFIAPI\r |
9166f840 | 162 | IkeConfigUdp6 (\r |
163 | IN UDP_IO *UdpIo,\r | |
164 | IN VOID *Context\r | |
165 | )\r | |
166 | {\r | |
167 | EFI_UDP6_PROTOCOL *Udp6;\r | |
168 | EFI_UDP6_CONFIG_DATA Udp6Cfg;\r | |
169 | \r | |
170 | ZeroMem (&Udp6Cfg, sizeof (EFI_UDP6_CONFIG_DATA));\r | |
171 | \r | |
172 | Udp6 = UdpIo->Protocol.Udp6;\r | |
173 | CopyMem (\r | |
174 | &Udp6Cfg,\r | |
175 | &mUdp6Conf,\r | |
176 | sizeof (EFI_UDP6_CONFIG_DATA)\r | |
177 | );\r | |
178 | \r | |
179 | if (Context != NULL) {\r | |
180 | //\r | |
181 | // Configure instance with a destination address to start source address\r | |
182 | // selection, and then get the configure data from the mode data to store\r | |
183 | // the source address.\r | |
184 | //\r | |
185 | CopyMem (\r | |
186 | &Udp6Cfg.RemoteAddress,\r | |
187 | Context,\r | |
188 | sizeof (EFI_IPv6_ADDRESS)\r | |
189 | );\r | |
190 | }\r | |
191 | \r | |
192 | return Udp6->Configure (Udp6, &Udp6Cfg);\r | |
193 | }\r | |
194 | \r | |
195 | /**\r | |
196 | Open and configure the related output UDPIO for IKE packet sending.\r | |
197 | \r | |
198 | If the UdpService is not configured, this fuction calls UdpIoCreatIo() to \r | |
199 | create UDPIO to bind this UdpService for IKE packet sending. If the UdpService\r | |
200 | has already been configured, then return.\r | |
201 | \r | |
202 | @param[in] UdpService The UDP_IO to be configured.\r | |
203 | @param[in] RemoteIp User-defined data when calling UdpIoCreateIo().\r | |
204 | \r | |
205 | @retval EFI_SUCCESS The configuration is successful.\r | |
206 | @retval Others The configuration fails.\r | |
207 | \r | |
208 | **/\r | |
209 | EFI_STATUS\r | |
210 | IkeOpenOutputUdp (\r | |
211 | IN IKE_UDP_SERVICE *UdpService,\r | |
212 | IN EFI_IP_ADDRESS *RemoteIp\r | |
213 | )\r | |
214 | {\r | |
215 | EFI_STATUS Status;\r | |
216 | EFI_IP4_CONFIG_PROTOCOL *Ip4Cfg;\r | |
217 | EFI_IP4_IPCONFIG_DATA *Ip4CfgData;\r | |
218 | UINTN BufSize;\r | |
219 | EFI_IP6_MODE_DATA Ip6ModeData;\r | |
220 | EFI_UDP6_PROTOCOL *Udp6;\r | |
221 | \r | |
222 | Status = EFI_SUCCESS;\r | |
223 | Ip4CfgData = NULL;\r | |
224 | BufSize = 0;\r | |
225 | \r | |
226 | //\r | |
227 | // Check whether the input and output udp io are both configured.\r | |
228 | //\r | |
229 | if (UdpService->IsConfigured) {\r | |
230 | goto ON_EXIT;\r | |
231 | }\r | |
232 | \r | |
233 | if (UdpService->IpVersion == UDP_IO_UDP4_VERSION) {\r | |
234 | //\r | |
235 | // Handle ip4config protocol to get local default address.\r | |
236 | //\r | |
237 | Status = gBS->HandleProtocol (\r | |
238 | UdpService->NicHandle,\r | |
239 | &gEfiIp4ConfigProtocolGuid,\r | |
240 | (VOID **) &Ip4Cfg\r | |
241 | );\r | |
242 | \r | |
243 | if (EFI_ERROR (Status)) {\r | |
244 | goto ON_EXIT;\r | |
245 | }\r | |
246 | \r | |
247 | Status = Ip4Cfg->GetData (Ip4Cfg, &BufSize, NULL);\r | |
248 | \r | |
249 | if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {\r | |
250 | goto ON_EXIT;\r | |
251 | }\r | |
252 | \r | |
253 | Ip4CfgData = AllocateZeroPool (BufSize);\r | |
254 | \r | |
255 | if (Ip4CfgData == NULL) {\r | |
256 | Status = EFI_OUT_OF_RESOURCES;\r | |
257 | goto ON_EXIT;\r | |
258 | }\r | |
259 | \r | |
260 | Status = Ip4Cfg->GetData (Ip4Cfg, &BufSize, Ip4CfgData);\r | |
261 | if (EFI_ERROR (Status)) {\r | |
262 | goto ON_EXIT;\r | |
263 | }\r | |
264 | \r | |
265 | CopyMem (\r | |
266 | &UdpService->DefaultAddress.v4,\r | |
267 | &Ip4CfgData->StationAddress,\r | |
268 | sizeof (EFI_IPv4_ADDRESS)\r | |
269 | );\r | |
270 | \r | |
271 | //\r | |
272 | // Create udp4 io for output with local default address.\r | |
273 | //\r | |
274 | UdpService->Output = UdpIoCreateIo (\r | |
275 | UdpService->NicHandle,\r | |
276 | UdpService->ImageHandle,\r | |
277 | IkeConfigUdp4,\r | |
278 | UDP_IO_UDP4_VERSION,\r | |
279 | &UdpService->DefaultAddress\r | |
280 | );\r | |
281 | \r | |
282 | if (UdpService->Output == NULL) {\r | |
283 | Status = EFI_OUT_OF_RESOURCES;\r | |
284 | goto ON_EXIT;\r | |
285 | }\r | |
286 | \r | |
287 | } else {\r | |
288 | //\r | |
289 | // Create udp6 io for output with remote address.\r | |
290 | //\r | |
291 | UdpService->Output = UdpIoCreateIo (\r | |
292 | UdpService->NicHandle,\r | |
293 | UdpService->ImageHandle,\r | |
294 | IkeConfigUdp6,\r | |
295 | UDP_IO_UDP6_VERSION,\r | |
296 | RemoteIp\r | |
297 | );\r | |
298 | \r | |
299 | if (UdpService->Output == NULL) {\r | |
300 | Status = EFI_OUT_OF_RESOURCES;\r | |
301 | goto ON_EXIT;\r | |
302 | }\r | |
303 | //\r | |
304 | // Get ip6 mode data to get the result of source address selection.\r | |
305 | //\r | |
306 | ZeroMem (&Ip6ModeData, sizeof (EFI_IP6_MODE_DATA));\r | |
307 | \r | |
308 | Udp6 = UdpService->Output->Protocol.Udp6;\r | |
309 | Status = Udp6->GetModeData (Udp6, NULL, &Ip6ModeData, NULL, NULL);\r | |
310 | \r | |
311 | if (EFI_ERROR (Status)) {\r | |
312 | UdpIoFreeIo (UdpService->Output);\r | |
313 | goto ON_EXIT;\r | |
314 | }\r | |
315 | //\r | |
316 | // Reconfigure udp6 io without remote address.\r | |
317 | //\r | |
318 | Udp6->Configure (Udp6, NULL);\r | |
319 | Status = IkeConfigUdp6 (UdpService->Output, NULL);\r | |
320 | \r | |
321 | //\r | |
322 | // Record the selected source address for ipsec process later.\r | |
323 | //\r | |
324 | CopyMem (\r | |
325 | &UdpService->DefaultAddress.v6,\r | |
326 | &Ip6ModeData.ConfigData.StationAddress,\r | |
327 | sizeof (EFI_IPv6_ADDRESS)\r | |
328 | );\r | |
329 | }\r | |
330 | \r | |
331 | UdpService->IsConfigured = TRUE;\r | |
332 | \r | |
333 | ON_EXIT:\r | |
334 | if (Ip4CfgData != NULL) {\r | |
335 | FreePool (Ip4CfgData);\r | |
336 | }\r | |
337 | \r | |
338 | return Status;\r | |
339 | }\r | |
340 | \r | |
341 | /**\r | |
342 | Open and configure a UDPIO of Udp4 for IKE packet receiving.\r | |
343 | \r | |
344 | This function is called at the IPsecDriverBinding start. IPsec create a UDP4 and \r | |
345 | UDP4 IO for each NIC handle.\r | |
346 | \r | |
347 | @param[in] Private Point to IPSEC_PRIVATE_DATA\r | |
348 | @param[in] Controller Handler for NIC card.\r | |
349 | \r | |
350 | @retval EFI_SUCCESS The Operation is successful.\r | |
351 | @retval EFI_OUT_OF_RESOURCE The required system resource can't be allocated.\r | |
352 | \r | |
353 | **/\r | |
354 | EFI_STATUS\r | |
355 | IkeOpenInputUdp4 (\r | |
356 | IN IPSEC_PRIVATE_DATA *Private,\r | |
357 | IN EFI_HANDLE Controller\r | |
358 | )\r | |
359 | {\r | |
360 | IKE_UDP_SERVICE *Udp4Srv;\r | |
361 | \r | |
362 | //\r | |
363 | // Check whether udp4 io of the controller has already been opened.\r | |
364 | //\r | |
365 | Udp4Srv = IkeLookupUdp (Private, Controller, IP_VERSION_4);\r | |
366 | \r | |
367 | if (Udp4Srv != NULL) {\r | |
368 | return EFI_ALREADY_STARTED;\r | |
369 | }\r | |
370 | \r | |
371 | Udp4Srv = AllocateZeroPool (sizeof (IKE_UDP_SERVICE));\r | |
372 | \r | |
373 | if (Udp4Srv == NULL) {\r | |
374 | return EFI_OUT_OF_RESOURCES;\r | |
375 | }\r | |
376 | //\r | |
377 | // Create udp4 io for iutput.\r | |
378 | //\r | |
379 | Udp4Srv->Input = UdpIoCreateIo (\r | |
380 | Controller,\r | |
381 | Private->ImageHandle,\r | |
382 | IkeConfigUdp4,\r | |
383 | UDP_IO_UDP4_VERSION,\r | |
384 | NULL\r | |
385 | );\r | |
386 | \r | |
387 | if (Udp4Srv->Input == NULL) {\r | |
388 | FreePool (Udp4Srv);\r | |
389 | return EFI_OUT_OF_RESOURCES;\r | |
390 | }\r | |
391 | \r | |
392 | Udp4Srv->NicHandle = Controller;\r | |
393 | Udp4Srv->ImageHandle = Private->ImageHandle;\r | |
394 | Udp4Srv->ListHead = &(Private->Udp4List);\r | |
395 | Udp4Srv->IpVersion = UDP_IO_UDP4_VERSION;\r | |
396 | Udp4Srv->IsConfigured = FALSE;\r | |
397 | \r | |
398 | ZeroMem (&Udp4Srv->DefaultAddress, sizeof (EFI_IP_ADDRESS));\r | |
399 | \r | |
400 | //\r | |
401 | // Insert the udp4 io into the list and increase the count.\r | |
402 | //\r | |
403 | InsertTailList (&Private->Udp4List, &Udp4Srv->List);\r | |
404 | \r | |
405 | Private->Udp4Num++;\r | |
406 | \r | |
407 | UdpIoRecvDatagram (Udp4Srv->Input, IkeDispatch, Udp4Srv, 0);\r | |
408 | \r | |
409 | return EFI_SUCCESS;\r | |
410 | }\r | |
411 | \r | |
412 | /**\r | |
413 | Open and configure a UDPIO of Udp6 for IKE packet receiving.\r | |
414 | \r | |
415 | This function is called at the IPsecDriverBinding start. IPsec create a UDP6 and UDP6\r | |
416 | IO for each NIC handle.\r | |
417 | \r | |
418 | @param[in] Private Point to IPSEC_PRIVATE_DATA\r | |
419 | @param[in] Controller Handler for NIC card.\r | |
420 | \r | |
421 | @retval EFI_SUCCESS The Operation is successful.\r | |
422 | @retval EFI_OUT_OF_RESOURCE The required system resource can't be allocated.\r | |
423 | \r | |
424 | **/\r | |
425 | EFI_STATUS\r | |
426 | IkeOpenInputUdp6 (\r | |
427 | IN IPSEC_PRIVATE_DATA *Private,\r | |
428 | IN EFI_HANDLE Controller\r | |
429 | )\r | |
430 | {\r | |
431 | IKE_UDP_SERVICE *Udp6Srv;\r | |
432 | \r | |
433 | Udp6Srv = IkeLookupUdp (Private, Controller, IP_VERSION_6);\r | |
434 | \r | |
435 | if (Udp6Srv != NULL) {\r | |
436 | return EFI_ALREADY_STARTED;\r | |
437 | }\r | |
438 | \r | |
439 | Udp6Srv = AllocateZeroPool (sizeof (IKE_UDP_SERVICE));\r | |
440 | \r | |
441 | if (Udp6Srv == NULL) {\r | |
442 | return EFI_OUT_OF_RESOURCES;\r | |
443 | }\r | |
444 | //\r | |
445 | // Create udp6 io for input.\r | |
446 | //\r | |
447 | Udp6Srv->Input = UdpIoCreateIo (\r | |
448 | Controller,\r | |
449 | Private->ImageHandle,\r | |
450 | IkeConfigUdp6,\r | |
451 | UDP_IO_UDP6_VERSION,\r | |
452 | NULL\r | |
453 | );\r | |
454 | \r | |
455 | if (Udp6Srv->Input == NULL) {\r | |
456 | FreePool (Udp6Srv);\r | |
457 | return EFI_OUT_OF_RESOURCES;\r | |
458 | }\r | |
459 | \r | |
460 | Udp6Srv->NicHandle = Controller;\r | |
461 | Udp6Srv->ImageHandle = Private->ImageHandle;\r | |
462 | Udp6Srv->ListHead = &(Private->Udp6List);\r | |
463 | Udp6Srv->IpVersion = UDP_IO_UDP6_VERSION;\r | |
464 | Udp6Srv->IsConfigured = FALSE;\r | |
465 | \r | |
466 | ZeroMem (&Udp6Srv->DefaultAddress, sizeof (EFI_IP_ADDRESS));\r | |
467 | \r | |
468 | //\r | |
469 | // Insert the udp6 io into the list and increase the count.\r | |
470 | //\r | |
471 | InsertTailList (&Private->Udp6List, &Udp6Srv->List);\r | |
472 | \r | |
473 | Private->Udp6Num++;\r | |
474 | \r | |
475 | UdpIoRecvDatagram (Udp6Srv->Input, IkeDispatch, Udp6Srv, 0);\r | |
476 | \r | |
477 | return EFI_SUCCESS;\r | |
478 | }\r | |
479 | \r | |
480 | /**\r | |
481 | The general interface of starting IPsec Key Exchange.\r | |
482 | \r | |
483 | This function is called when a IKE negotiation to start getting a Key.\r | |
484 | \r | |
485 | @param[in] UdpService Point to IKE_UDP_SERVICE which will be used for \r | |
486 | IKE packet sending.\r | |
487 | @param[in] SpdEntry Point to the SPD entry related to the IKE negotiation.\r | |
488 | @param[in] RemoteIp Point to EFI_IP_ADDRESS related to the IKE negotiation.\r | |
489 | \r | |
490 | @retval EFI_SUCCESS The Operation is successful.\r | |
491 | @retval EFI_ACCESS_DENIED No related PAD entry was found.\r | |
492 | @retval EFI_INVALID_PARAMETER The IKE version is not supported.\r | |
493 | \r | |
494 | **/\r | |
495 | EFI_STATUS\r | |
496 | IkeNegotiate (\r | |
497 | IN IKE_UDP_SERVICE *UdpService,\r | |
498 | IN IPSEC_SPD_ENTRY *SpdEntry,\r | |
499 | IN EFI_IP_ADDRESS *RemoteIp\r | |
500 | )\r | |
501 | {\r | |
502 | EFI_STATUS Status;\r | |
503 | UINT8 *IkeSaSession;\r | |
504 | IKE_EXCHANGE_INTERFACE *Exchange;\r | |
505 | IPSEC_PRIVATE_DATA *Private;\r | |
506 | IPSEC_PAD_ENTRY *PadEntry;\r | |
507 | UINT8 IkeVersion;\r | |
508 | \r | |
509 | Private = (UdpService->IpVersion == IP_VERSION_4) ?\r | |
510 | IPSEC_PRIVATE_DATA_FROM_UDP4LIST(UdpService->ListHead) :\r | |
511 | IPSEC_PRIVATE_DATA_FROM_UDP6LIST(UdpService->ListHead);\r | |
512 | \r | |
513 | //\r | |
514 | // Try to open udp io for output if it hasn't.\r | |
515 | //\r | |
516 | Status = IkeOpenOutputUdp (UdpService, RemoteIp);\r | |
517 | if (EFI_ERROR (Status)) {\r | |
518 | return Status;\r | |
519 | }\r | |
520 | //\r | |
521 | // Try to find the IKE SA session in the IKEv1 and IKEv2 established SA session list.\r | |
522 | // \r | |
523 | IkeSaSession = (UINT8 *) Ikev2SaSessionLookup (&Private->Ikev2EstablishedList, RemoteIp); \r | |
524 | \r | |
525 | \r | |
526 | if (IkeSaSession == NULL) {\r | |
527 | //\r | |
528 | // Find the pad entry by the remote ip address.\r | |
529 | //\r | |
530 | PadEntry = IpSecLookupPadEntry (UdpService->IpVersion, RemoteIp);\r | |
531 | if (PadEntry == NULL) {\r | |
532 | return EFI_ACCESS_DENIED;\r | |
533 | }\r | |
534 | //\r | |
535 | // Determine the IKE exchange instance by the auth protocol in pad entry.\r | |
536 | //\r | |
537 | ASSERT (PadEntry->Data->AuthProtocol < EfiIPsecAuthProtocolMaximum);\r | |
538 | if (PadEntry->Data->AuthProtocol == EfiIPsecAuthProtocolIKEv1) {\r | |
539 | return EFI_INVALID_PARAMETER;\r | |
540 | }\r | |
541 | Exchange = mIkeExchange[PadEntry->Data->AuthProtocol];\r | |
542 | //\r | |
543 | // Start the main mode stage to negotiate IKE SA.\r | |
544 | //\r | |
545 | Status = Exchange->NegotiateSa (UdpService, SpdEntry, PadEntry, RemoteIp);\r | |
546 | } else {\r | |
547 | //\r | |
548 | // Determine the IKE exchange instance by the IKE version in IKE SA session.\r | |
549 | //\r | |
550 | IkeVersion = IkeGetVersionFromSession (IkeSaSession);\r | |
551 | if (IkeVersion != 2) {\r | |
552 | return EFI_INVALID_PARAMETER;\r | |
553 | }\r | |
554 | \r | |
555 | Exchange = mIkeExchange[IkeVersion - 1];\r | |
556 | //\r | |
557 | // Start the quick mode stage to negotiate child SA.\r | |
558 | //\r | |
559 | Status = Exchange->NegotiateChildSa (IkeSaSession, SpdEntry, NULL);\r | |
560 | }\r | |
561 | \r | |
562 | return Status;\r | |
563 | }\r | |
564 | \r | |
565 | /**\r | |
566 | The generic interface when receive a IKE packet.\r | |
567 | \r | |
568 | This function is called when UDP IO receives a IKE packet.\r | |
569 | \r | |
570 | @param[in] Packet Point to received IKE packet.\r | |
571 | @param[in] EndPoint Point to UDP_END_POINT which contains the information of \r | |
572 | Remote IP and Port.\r | |
573 | @param[in] IoStatus The Status of Recieve Token.\r | |
574 | @param[in] Context Point to data passed from the caller.\r | |
575 | \r | |
576 | **/\r | |
577 | VOID\r | |
1d8fa5e9 | 578 | EFIAPI\r |
9166f840 | 579 | IkeDispatch (\r |
580 | IN NET_BUF *Packet,\r | |
581 | IN UDP_END_POINT *EndPoint,\r | |
582 | IN EFI_STATUS IoStatus,\r | |
583 | IN VOID *Context\r | |
584 | )\r | |
585 | {\r | |
586 | IPSEC_PRIVATE_DATA *Private;\r | |
587 | IKE_PACKET *IkePacket;\r | |
588 | IKE_HEADER *IkeHdr;\r | |
589 | IKE_UDP_SERVICE *UdpService;\r | |
590 | IKE_EXCHANGE_INTERFACE *Exchange;\r | |
591 | EFI_STATUS Status;\r | |
592 | \r | |
593 | UdpService = (IKE_UDP_SERVICE *) Context;\r | |
594 | IkePacket = NULL;\r | |
595 | Private = (UdpService->IpVersion == IP_VERSION_4) ?\r | |
596 | IPSEC_PRIVATE_DATA_FROM_UDP4LIST(UdpService->ListHead) :\r | |
597 | IPSEC_PRIVATE_DATA_FROM_UDP6LIST(UdpService->ListHead);\r | |
598 | \r | |
599 | if (EFI_ERROR (IoStatus)) {\r | |
600 | goto ON_EXIT;\r | |
601 | }\r | |
602 | //\r | |
603 | // Check whether the ipsec is enabled or not.\r | |
604 | //\r | |
605 | if (Private->IpSec.DisabledFlag == TRUE) {\r | |
606 | goto ON_EXIT;\r | |
607 | }\r | |
608 | \r | |
609 | if (EndPoint->RemotePort != IKE_DEFAULT_PORT) {\r | |
610 | goto ON_EXIT;\r | |
611 | }\r | |
612 | \r | |
613 | //\r | |
614 | // Build IKE packet from the received netbuf.\r | |
615 | //\r | |
616 | IkePacket = IkePacketFromNetbuf (Packet);\r | |
617 | \r | |
618 | if (IkePacket == NULL) {\r | |
619 | goto ON_EXIT;\r | |
620 | }\r | |
621 | //\r | |
622 | // Get the remote address from the IKE packet.\r | |
623 | //\r | |
624 | if (UdpService->IpVersion == IP_VERSION_4) {\r | |
625 | *(UINT32 *) IkePacket->RemotePeerIp.Addr = HTONL ((*(UINT32 *) EndPoint->RemoteAddr.Addr));\r | |
626 | } else {\r | |
627 | CopyMem (\r | |
628 | &IkePacket->RemotePeerIp,\r | |
629 | NTOHLLL (&EndPoint->RemoteAddr.v6),\r | |
630 | sizeof (EFI_IPv6_ADDRESS)\r | |
631 | );\r | |
632 | }\r | |
633 | //\r | |
634 | // Try to open udp io for output if hasn't.\r | |
635 | //\r | |
636 | Status = IkeOpenOutputUdp (UdpService, &IkePacket->RemotePeerIp);\r | |
637 | \r | |
638 | if (EFI_ERROR (Status)) {\r | |
639 | goto ON_EXIT;\r | |
640 | }\r | |
641 | \r | |
642 | IkeHdr = IkePacket->Header;\r | |
643 | \r | |
644 | //\r | |
645 | // Determine the IKE exchange instance by the IKE version in IKE header.\r | |
646 | //\r | |
647 | if (IKE_MAJOR_VERSION (IkeHdr->Version) == 2) {\r | |
648 | Exchange = mIkeExchange[IKE_MAJOR_VERSION (IkeHdr->Version) - 1];\r | |
649 | } else {\r | |
650 | goto ON_EXIT;\r | |
651 | }\r | |
652 | \r | |
653 | switch (IkeHdr->ExchangeType) {\r | |
654 | case IKE_XCG_TYPE_IDENTITY_PROTECT:\r | |
655 | case IKE_XCG_TYPE_SA_INIT:\r | |
656 | case IKE_XCG_TYPE_AUTH:\r | |
657 | Exchange->HandleSa (UdpService, IkePacket);\r | |
658 | break;\r | |
659 | \r | |
660 | case IKE_XCG_TYPE_QM:\r | |
661 | case IKE_XCG_TYPE_CREATE_CHILD_SA:\r | |
662 | Exchange->HandleChildSa (UdpService, IkePacket);\r | |
663 | break;\r | |
664 | \r | |
665 | case IKE_XCG_TYPE_INFO:\r | |
666 | case IKE_XCG_TYPE_INFO2:\r | |
667 | Exchange->HandleInfo (UdpService, IkePacket);\r | |
668 | break;\r | |
669 | \r | |
670 | default:\r | |
671 | break;\r | |
672 | }\r | |
673 | \r | |
674 | ON_EXIT:\r | |
675 | if (IkePacket != NULL) {\r | |
676 | IkePacketFree (IkePacket);\r | |
677 | }\r | |
678 | \r | |
679 | if (Packet != NULL) {\r | |
680 | NetbufFree (Packet);\r | |
681 | }\r | |
682 | \r | |
683 | UdpIoRecvDatagram (UdpService->Input, IkeDispatch, UdpService, 0);\r | |
684 | \r | |
685 | return ;\r | |
686 | }\r | |
687 | \r | |
688 | /**\r | |
689 | Delete all established IKE SAs and related Child SAs.\r | |
690 | \r | |
691 | This function is the subfunction of the IpSecCleanupAllSa(). It first calls \r | |
692 | IkeDeleteChildSa() to delete all Child SAs then send out the related \r | |
693 | Information packet.\r | |
694 | \r | |
695 | @param[in] Private Pointer of the IPSEC_PRIVATE_DATA\r | |
696 | \r | |
697 | **/\r | |
698 | VOID\r | |
699 | IkeDeleteAllSas (\r | |
700 | IN IPSEC_PRIVATE_DATA *Private\r | |
701 | )\r | |
702 | {\r | |
703 | LIST_ENTRY *Entry;\r | |
704 | LIST_ENTRY *NextEntry;\r | |
705 | IKEV2_SA_SESSION *Ikev2SaSession;\r | |
706 | UINT8 Value;\r | |
707 | EFI_STATUS Status;\r | |
708 | IKE_EXCHANGE_INTERFACE *Exchange;\r | |
709 | UINT8 IkeVersion;\r | |
710 | \r | |
711 | Exchange = NULL;\r | |
712 | \r | |
713 | //\r | |
714 | // If the IKEv1 is supported, first deal with the Ikev1Estatblished list.\r | |
715 | //\r | |
716 | \r | |
717 | //\r | |
718 | // If IKEv2 SAs are under establishing, delete it directly.\r | |
719 | //\r | |
720 | if (!IsListEmpty (&Private->Ikev2SessionList)) {\r | |
721 | NET_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Private->Ikev2SessionList) {\r | |
722 | Ikev2SaSession = IKEV2_SA_SESSION_BY_SESSION (Entry); \r | |
723 | RemoveEntryList (Entry);\r | |
724 | Ikev2SaSessionFree (Ikev2SaSession);\r | |
725 | }\r | |
726 | }\r | |
727 | \r | |
728 | //\r | |
729 | // If there is no existing established IKE SA, set the Ipsec DisableFlag to TRUE\r | |
730 | // and turn off the IsIPsecDisabling flag.\r | |
731 | //\r | |
732 | if (IsListEmpty (&Private->Ikev2EstablishedList)) {\r | |
733 | Value = IPSEC_STATUS_DISABLED;\r | |
734 | Status = gRT->SetVariable (\r | |
735 | IPSECCONFIG_STATUS_NAME,\r | |
736 | &gEfiIpSecConfigProtocolGuid,\r | |
737 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
738 | sizeof (Value),\r | |
739 | &Value\r | |
740 | );\r | |
741 | if (!EFI_ERROR (Status)) {\r | |
742 | Private->IpSec.DisabledFlag = TRUE;\r | |
743 | Private->IsIPsecDisabling = FALSE;\r | |
744 | return ;\r | |
745 | }\r | |
746 | }\r | |
747 | \r | |
748 | //\r | |
749 | // Delete established IKEv2 SAs.\r | |
750 | //\r | |
751 | if (!IsListEmpty (&Private->Ikev2EstablishedList)) {\r | |
752 | for (Entry = Private->Ikev2EstablishedList.ForwardLink; Entry != &Private->Ikev2EstablishedList;) {\r | |
753 | Ikev2SaSession = IKEV2_SA_SESSION_BY_SESSION (Entry);\r | |
754 | Entry = Entry->ForwardLink;\r | |
755 | \r | |
756 | Ikev2SaSession->SessionCommon.State = IkeStateSaDeleting;\r | |
757 | \r | |
758 | //\r | |
759 | // Call for Information Exchange.\r | |
760 | //\r | |
761 | IkeVersion = IkeGetVersionFromSession ((UINT8*)Ikev2SaSession);\r | |
762 | if (IkeVersion == 2) {\r | |
763 | Exchange = mIkeExchange[IkeVersion - 1];\r | |
764 | Exchange->NegotiateInfo((UINT8*)Ikev2SaSession, NULL);\r | |
765 | } \r | |
766 | }\r | |
767 | }\r | |
768 | \r | |
769 | }\r | |
770 | \r | |
771 | \r | |
772 | \r |