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9166f840 | 1 | /** @file\r |
2 | The operations for IKEv2 SA.\r | |
3 | \r | |
e8837edd | 4 | (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r |
6b16c9e7 | 5 | Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>\r |
9166f840 | 6 | \r |
7 | This program and the accompanying materials\r | |
8 | are licensed and made available under the terms and conditions of the BSD License\r | |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php.\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #include "Utility.h"\r | |
18 | #include "IpSecDebug.h"\r | |
19 | #include "IkeService.h"\r | |
20 | #include "Ikev2.h"\r | |
21 | \r | |
22 | /**\r | |
23 | Generates the DH Key.\r | |
24 | \r | |
25 | This generates the DH local public key and store it in the IKEv2 SA Session's GxBuffer.\r | |
26 | \r | |
27 | @param[in] IkeSaSession Pointer to related IKE SA Session.\r | |
28 | \r | |
29 | @retval EFI_SUCCESS The operation succeeded.\r | |
30 | @retval Others The operation failed.\r | |
31 | \r | |
32 | **/\r | |
33 | EFI_STATUS\r | |
34 | Ikev2GenerateSaDhPublicKey (\r | |
35 | IN IKEV2_SA_SESSION *IkeSaSession\r | |
36 | );\r | |
37 | \r | |
38 | /**\r | |
39 | Generates the IKEv2 SA key for the furthure IKEv2 exchange.\r | |
40 | \r | |
41 | @param[in] IkeSaSession Pointer to IKEv2 SA Session.\r | |
42 | @param[in] KePayload Pointer to Key payload used to generate the Key.\r | |
43 | \r | |
44 | @retval EFI_UNSUPPORTED If the Algorithm Id is not supported.\r | |
45 | @retval EFI_SUCCESS The operation succeeded.\r | |
46 | \r | |
47 | **/\r | |
48 | EFI_STATUS\r | |
49 | Ikev2GenerateSaKeys (\r | |
50 | IN IKEV2_SA_SESSION *IkeSaSession,\r | |
51 | IN IKE_PAYLOAD *KePayload\r | |
52 | );\r | |
53 | \r | |
54 | /**\r | |
55 | Generates the Keys for the furthure IPsec Protocol.\r | |
56 | \r | |
57 | @param[in] ChildSaSession Pointer to IKE Child SA Session.\r | |
58 | @param[in] KePayload Pointer to Key payload used to generate the Key.\r | |
59 | \r | |
60 | @retval EFI_UNSUPPORTED If one or more Algorithm Id is unsupported.\r | |
61 | @retval EFI_SUCCESS The operation succeeded.\r | |
62 | \r | |
63 | **/\r | |
64 | EFI_STATUS\r | |
65 | Ikev2GenerateChildSaKeys (\r | |
66 | IN IKEV2_CHILD_SA_SESSION *ChildSaSession,\r | |
67 | IN IKE_PAYLOAD *KePayload\r | |
68 | );\r | |
69 | \r | |
70 | /**\r | |
71 | Gernerates IKEv2 packet for IKE_SA_INIT exchange.\r | |
72 | \r | |
73 | @param[in] SaSession Pointer to IKEV2_SA_SESSION related to the exchange.\r | |
74 | @param[in] Context Context Data passed by caller.\r | |
75 | \r | |
76 | @retval EFI_SUCCESS The IKEv2 packet generation succeeded.\r | |
77 | @retval Others The IKEv2 packet generation failed.\r | |
78 | \r | |
79 | **/\r | |
80 | IKE_PACKET *\r | |
81 | Ikev2InitPskGenerator (\r | |
82 | IN UINT8 *SaSession,\r | |
83 | IN VOID *Context\r | |
84 | )\r | |
85 | {\r | |
86 | IKE_PACKET *IkePacket;\r | |
87 | IKEV2_SA_SESSION *IkeSaSession;\r | |
88 | IKE_PAYLOAD *SaPayload;\r | |
89 | IKE_PAYLOAD *KePayload;\r | |
90 | IKE_PAYLOAD *NoncePayload;\r | |
91 | IKE_PAYLOAD *NotifyPayload;\r | |
92 | EFI_STATUS Status;\r | |
93 | \r | |
94 | SaPayload = NULL;\r | |
95 | KePayload = NULL;\r | |
96 | NoncePayload = NULL;\r | |
97 | NotifyPayload = NULL;\r | |
98 | \r | |
99 | IkeSaSession = (IKEV2_SA_SESSION *) SaSession;\r | |
100 | \r | |
101 | //\r | |
102 | // 1. Allocate IKE packet\r | |
103 | //\r | |
104 | IkePacket = IkePacketAlloc ();\r | |
6b16c9e7 JW |
105 | if (IkePacket == NULL) {\r |
106 | goto CheckError;\r | |
107 | }\r | |
9166f840 | 108 | \r |
109 | //\r | |
110 | // 1.a Fill the IkePacket->Hdr\r | |
111 | //\r | |
112 | IkePacket->Header->ExchangeType = IKEV2_EXCHANGE_TYPE_INIT;\r | |
113 | IkePacket->Header->InitiatorCookie = IkeSaSession->InitiatorCookie;\r | |
114 | IkePacket->Header->ResponderCookie = IkeSaSession->ResponderCookie;\r | |
115 | IkePacket->Header->Version = (UINT8) (2 << 4);\r | |
116 | IkePacket->Header->MessageId = 0;\r | |
117 | \r | |
118 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
119 | IkePacket->Header->Flags = IKE_HEADER_FLAGS_INIT;\r | |
120 | } else {\r | |
121 | IkePacket->Header->Flags = IKE_HEADER_FLAGS_RESPOND;\r | |
122 | }\r | |
123 | \r | |
124 | //\r | |
125 | // If the NCookie is not NULL, this IKE_SA_INIT packet is resent by the NCookie\r | |
126 | // and the NCookie payload should be the first payload in this packet.\r | |
127 | //\r | |
128 | if (IkeSaSession->NCookie != NULL) {\r | |
129 | IkePacket->Header->NextPayload = IKEV2_PAYLOAD_TYPE_NOTIFY;\r | |
130 | NotifyPayload = Ikev2GenerateNotifyPayload (\r | |
131 | IPSEC_PROTO_ISAKMP,\r | |
132 | IKEV2_PAYLOAD_TYPE_SA,\r | |
133 | 0,\r | |
134 | IKEV2_NOTIFICATION_COOKIE,\r | |
135 | NULL,\r | |
136 | IkeSaSession->NCookie,\r | |
137 | IkeSaSession->NCookieSize\r | |
138 | );\r | |
139 | } else {\r | |
140 | IkePacket->Header->NextPayload = IKEV2_PAYLOAD_TYPE_SA;\r | |
141 | }\r | |
142 | \r | |
143 | //\r | |
144 | // 2. Generate SA Payload according to the SaData & SaParams\r | |
145 | //\r | |
146 | SaPayload = Ikev2GenerateSaPayload (\r | |
147 | IkeSaSession->SaData,\r | |
148 | IKEV2_PAYLOAD_TYPE_KE,\r | |
149 | IkeSessionTypeIkeSa\r | |
150 | );\r | |
151 | \r | |
152 | //\r | |
153 | // 3. Generate DH public key.\r | |
154 | // The DhPrivate Key has been generated in Ikev2InitPskParser, if the\r | |
155 | // IkeSaSession is responder. If resending IKE_SA_INIT with Cookie Notify\r | |
156 | // No need to recompute the Public key.\r | |
157 | //\r | |
158 | if ((IkeSaSession->SessionCommon.IsInitiator) && (IkeSaSession->NCookie == NULL)) { \r | |
159 | Status = Ikev2GenerateSaDhPublicKey (IkeSaSession);\r | |
160 | if (EFI_ERROR (Status)) {\r | |
161 | goto CheckError;\r | |
162 | }\r | |
163 | }\r | |
164 | \r | |
165 | //\r | |
166 | // 4. Generate KE Payload according to SaParams->DhGroup\r | |
167 | //\r | |
168 | KePayload = Ikev2GenerateKePayload (\r | |
169 | IkeSaSession, \r | |
170 | IKEV2_PAYLOAD_TYPE_NONCE\r | |
171 | );\r | |
172 | \r | |
173 | //\r | |
174 | // 5. Generate Nonce Payload\r | |
175 | // If resending IKE_SA_INIT with Cookie Notify paylaod, no need to regenerate\r | |
176 | // the Nonce Payload.\r | |
177 | //\r | |
178 | if ((IkeSaSession->SessionCommon.IsInitiator) && (IkeSaSession->NCookie == NULL)) {\r | |
179 | IkeSaSession->NiBlkSize = IKE_NONCE_SIZE;\r | |
180 | IkeSaSession->NiBlock = IkeGenerateNonce (IKE_NONCE_SIZE);\r | |
6b16c9e7 JW |
181 | if (IkeSaSession->NiBlock == NULL) {\r |
182 | goto CheckError;\r | |
183 | }\r | |
9166f840 | 184 | }\r |
185 | \r | |
186 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
187 | NoncePayload = Ikev2GenerateNoncePayload (\r | |
188 | IkeSaSession->NiBlock,\r | |
189 | IkeSaSession->NiBlkSize,\r | |
190 | IKEV2_PAYLOAD_TYPE_NONE\r | |
191 | );\r | |
192 | } else {\r | |
193 | //\r | |
194 | // The Nonce Payload has been created in Ikev2PskParser if the IkeSaSession is\r | |
195 | // responder.\r | |
196 | //\r | |
197 | NoncePayload = Ikev2GenerateNoncePayload (\r | |
198 | IkeSaSession->NrBlock,\r | |
199 | IkeSaSession->NrBlkSize,\r | |
200 | IKEV2_PAYLOAD_TYPE_NONE\r | |
201 | );\r | |
202 | }\r | |
203 | \r | |
204 | if (NotifyPayload != NULL) {\r | |
205 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, NotifyPayload);\r | |
206 | }\r | |
207 | if (SaPayload != NULL) {\r | |
208 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, SaPayload);\r | |
209 | }\r | |
210 | if (KePayload != NULL) {\r | |
211 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, KePayload);\r | |
212 | }\r | |
213 | if (NoncePayload != NULL) {\r | |
214 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, NoncePayload);\r | |
215 | }\r | |
216 | \r | |
217 | return IkePacket;\r | |
218 | \r | |
219 | CheckError:\r | |
220 | if (IkePacket != NULL) {\r | |
221 | IkePacketFree (IkePacket);\r | |
222 | }\r | |
223 | if (SaPayload != NULL) {\r | |
224 | IkePayloadFree (SaPayload);\r | |
225 | }\r | |
226 | return NULL; \r | |
227 | }\r | |
228 | \r | |
229 | /**\r | |
230 | Parses the IKEv2 packet for IKE_SA_INIT exchange.\r | |
231 | \r | |
232 | @param[in] SaSession Pointer to IKEV2_SA_SESSION related to the exchange.\r | |
233 | @param[in] IkePacket The received IKE packet to be parsed.\r | |
234 | \r | |
235 | @retval EFI_SUCCESS The IKEv2 packet is acceptable and the relative data is\r | |
236 | saved for furthure communication.\r | |
237 | @retval EFI_INVALID_PARAMETER The IKEv2 packet is malformed or the SA proposal is unacceptable.\r | |
238 | \r | |
239 | **/\r | |
240 | EFI_STATUS\r | |
241 | Ikev2InitPskParser (\r | |
242 | IN UINT8 *SaSession,\r | |
243 | IN IKE_PACKET *IkePacket\r | |
244 | ) \r | |
245 | {\r | |
246 | IKEV2_SA_SESSION *IkeSaSession;\r | |
247 | IKE_PAYLOAD *SaPayload;\r | |
248 | IKE_PAYLOAD *KeyPayload;\r | |
249 | IKE_PAYLOAD *IkePayload;\r | |
250 | IKE_PAYLOAD *NoncePayload;\r | |
251 | IKE_PAYLOAD *NotifyPayload;\r | |
252 | UINT8 *NonceBuffer;\r | |
253 | UINTN NonceSize;\r | |
254 | LIST_ENTRY *Entry;\r | |
255 | EFI_STATUS Status;\r | |
256 | \r | |
257 | IkeSaSession = (IKEV2_SA_SESSION *) SaSession;\r | |
258 | KeyPayload = NULL;\r | |
259 | SaPayload = NULL;\r | |
260 | NoncePayload = NULL;\r | |
261 | IkePayload = NULL;\r | |
262 | NotifyPayload = NULL;\r | |
263 | \r | |
264 | //\r | |
265 | // Iterate payloads to find the SaPayload and KeyPayload.\r | |
266 | //\r | |
267 | NET_LIST_FOR_EACH (Entry, &(IkePacket)->PayloadList) {\r | |
268 | IkePayload = IKE_PAYLOAD_BY_PACKET (Entry);\r | |
269 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_SA) {\r | |
270 | SaPayload = IkePayload;\r | |
271 | }\r | |
272 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_KE) {\r | |
273 | KeyPayload = IkePayload;\r | |
274 | }\r | |
275 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_NONCE) {\r | |
276 | NoncePayload = IkePayload;\r | |
277 | }\r | |
278 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_NOTIFY) {\r | |
279 | NotifyPayload = IkePayload;\r | |
280 | }\r | |
281 | }\r | |
282 | \r | |
283 | //\r | |
284 | // According to RFC 4306 - 2.6. If the responder responds with the COOKIE Notify\r | |
285 | // payload with the cookie data, initiator MUST retry the IKE_SA_INIT with a\r | |
286 | // Notify payload of type COOKIE containing the responder suppplied cookie data\r | |
287 | // as first payload and all other payloads unchanged.\r | |
288 | //\r | |
289 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
290 | if (NotifyPayload != NULL) {\r | |
291 | Status = Ikev2ParserNotifyCookiePayload (NotifyPayload, IkeSaSession);\r | |
292 | return Status;\r | |
293 | }\r | |
294 | }\r | |
295 | \r | |
296 | if ((KeyPayload == NULL) || (SaPayload == NULL) || (NoncePayload == NULL)) {\r | |
297 | return EFI_INVALID_PARAMETER;\r | |
298 | }\r | |
299 | \r | |
300 | //\r | |
301 | // Store NoncePayload for SKEYID computing.\r | |
302 | //\r | |
303 | NonceSize = NoncePayload->PayloadSize - sizeof (IKEV2_COMMON_PAYLOAD_HEADER);\r | |
304 | NonceBuffer = (UINT8 *) AllocatePool (NonceSize);\r | |
6b16c9e7 JW |
305 | if (NonceBuffer == NULL) {\r |
306 | Status = EFI_OUT_OF_RESOURCES;\r | |
307 | goto CheckError;\r | |
308 | }\r | |
309 | \r | |
9166f840 | 310 | CopyMem (\r |
311 | NonceBuffer,\r | |
312 | NoncePayload->PayloadBuf + sizeof (IKEV2_COMMON_PAYLOAD_HEADER),\r | |
313 | NonceSize\r | |
314 | );\r | |
315 | \r | |
316 | //\r | |
317 | // Check if IkePacket Header matches the state\r | |
318 | //\r | |
319 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
320 | //\r | |
321 | // 1. Check the IkePacket->Hdr == IKE_HEADER_FLAGS_RESPOND\r | |
322 | //\r | |
323 | if (IkePacket->Header->Flags != IKE_HEADER_FLAGS_RESPOND) {\r | |
324 | Status = EFI_INVALID_PARAMETER;\r | |
325 | goto CheckError;\r | |
326 | }\r | |
327 | \r | |
328 | //\r | |
329 | // 2. Parse the SA Payload and Key Payload to find out the cryptographic\r | |
330 | // suite and fill in the Sa paramse into CommonSession->SaParams\r | |
331 | //\r | |
332 | if (!Ikev2SaParseSaPayload (IkeSaSession, SaPayload, IkePacket->Header->Flags)) {\r | |
333 | Status = EFI_INVALID_PARAMETER;\r | |
334 | goto CheckError;\r | |
335 | }\r | |
336 | \r | |
337 | //\r | |
338 | // 3. If Initiator, the NoncePayload is Nr_b.\r | |
339 | //\r | |
340 | IKEV2_DUMP_STATE (IkeSaSession->SessionCommon.State, IkeStateAuth);\r | |
341 | IkeSaSession->NrBlock = NonceBuffer;\r | |
342 | IkeSaSession->NrBlkSize = NonceSize;\r | |
343 | IkeSaSession->SessionCommon.State = IkeStateAuth;\r | |
344 | IkeSaSession->ResponderCookie = IkePacket->Header->ResponderCookie;\r | |
345 | \r | |
346 | //\r | |
347 | // 4. Change the state of IkeSaSession\r | |
348 | //\r | |
349 | IkeSaSession->SessionCommon.State = IkeStateAuth;\r | |
350 | } else {\r | |
351 | //\r | |
352 | // 1. Check the IkePacket->Hdr == IKE_HEADER_FLAGS_INIT\r | |
353 | //\r | |
354 | if (IkePacket->Header->Flags != IKE_HEADER_FLAGS_INIT) {\r | |
355 | Status = EFI_INVALID_PARAMETER;\r | |
356 | goto CheckError;\r | |
357 | }\r | |
358 | \r | |
359 | //\r | |
360 | // 2. Parse the SA payload and find out the perfered one\r | |
361 | // and fill in the SA parameters into CommonSession->SaParams and SaData into\r | |
362 | // IkeSaSession for the responder SA payload generation.\r | |
363 | //\r | |
364 | if (!Ikev2SaParseSaPayload (IkeSaSession, SaPayload, IkePacket->Header->Flags)) {\r | |
365 | Status = EFI_INVALID_PARAMETER;\r | |
366 | goto CheckError;\r | |
367 | }\r | |
368 | \r | |
369 | //\r | |
370 | // 3. Generat Dh Y parivate Key\r | |
371 | //\r | |
372 | Status = Ikev2GenerateSaDhPublicKey (IkeSaSession);\r | |
373 | if (EFI_ERROR (Status)) {\r | |
374 | goto CheckError;\r | |
375 | }\r | |
376 | \r | |
377 | //\r | |
378 | // 4. If Responder, the NoncePayload is Ni_b and go to generate Nr_b.\r | |
379 | //\r | |
380 | IkeSaSession->NiBlock = NonceBuffer;\r | |
381 | IkeSaSession->NiBlkSize = NonceSize;\r | |
382 | \r | |
383 | //\r | |
384 | // 5. Generate Nr_b\r | |
385 | //\r | |
386 | IkeSaSession->NrBlock = IkeGenerateNonce (IKE_NONCE_SIZE);\r | |
387 | ASSERT_EFI_ERROR (IkeSaSession->NrBlock != NULL);\r | |
388 | IkeSaSession->NrBlkSize = IKE_NONCE_SIZE;\r | |
389 | \r | |
390 | //\r | |
391 | // 6. Save the Cookies\r | |
392 | //\r | |
393 | IkeSaSession->InitiatorCookie = IkePacket->Header->InitiatorCookie;\r | |
394 | IkeSaSession->ResponderCookie = IkeGenerateCookie ();\r | |
395 | }\r | |
396 | \r | |
397 | if (IkeSaSession->SessionCommon.PreferDhGroup != ((IKEV2_KEY_EXCHANGE *)KeyPayload->PayloadBuf)->DhGroup) {\r | |
398 | Status = EFI_INVALID_PARAMETER;\r | |
399 | goto CheckError;\r | |
400 | }\r | |
401 | //\r | |
402 | // Call Ikev2GenerateSaKeys to create SKEYID, SKEYID_d, SKEYID_a, SKEYID_e.\r | |
403 | //\r | |
404 | Status = Ikev2GenerateSaKeys (IkeSaSession, KeyPayload);\r | |
405 | if (EFI_ERROR(Status)) {\r | |
406 | goto CheckError;\r | |
407 | }\r | |
408 | return EFI_SUCCESS;\r | |
409 | \r | |
410 | CheckError:\r | |
411 | if (NonceBuffer != NULL) {\r | |
412 | FreePool (NonceBuffer);\r | |
413 | }\r | |
414 | \r | |
415 | return Status;\r | |
416 | }\r | |
417 | \r | |
418 | /**\r | |
419 | Generates the IKEv2 packet for IKE_AUTH exchange.\r | |
420 | \r | |
421 | @param[in] SaSession Pointer to IKEV2_SA_SESSION.\r | |
422 | @param[in] Context Context data passed by caller.\r | |
423 | \r | |
424 | @retval Pointer to IKE Packet to be sent out.\r | |
425 | \r | |
426 | **/\r | |
427 | IKE_PACKET *\r | |
428 | Ikev2AuthPskGenerator (\r | |
429 | IN UINT8 *SaSession,\r | |
430 | IN VOID *Context\r | |
431 | )\r | |
432 | {\r | |
433 | IKE_PACKET *IkePacket;\r | |
434 | IKEV2_SA_SESSION *IkeSaSession;\r | |
435 | IKE_PAYLOAD *IdPayload;\r | |
436 | IKE_PAYLOAD *AuthPayload;\r | |
437 | IKE_PAYLOAD *SaPayload;\r | |
438 | IKE_PAYLOAD *TsiPayload;\r | |
439 | IKE_PAYLOAD *TsrPayload;\r | |
440 | IKE_PAYLOAD *NotifyPayload;\r | |
441 | IKE_PAYLOAD *CpPayload;\r | |
442 | IKEV2_CHILD_SA_SESSION *ChildSaSession;\r | |
443 | \r | |
444 | \r | |
445 | IkeSaSession = (IKEV2_SA_SESSION *) SaSession;\r | |
446 | ChildSaSession = IKEV2_CHILD_SA_SESSION_BY_IKE_SA (GetFirstNode (&IkeSaSession->ChildSaSessionList));\r | |
447 | \r | |
448 | CpPayload = NULL;\r | |
449 | NotifyPayload = NULL;\r | |
450 | \r | |
451 | //\r | |
452 | // 1. Allocate IKE Packet\r | |
453 | //\r | |
454 | IkePacket= IkePacketAlloc ();\r | |
6b16c9e7 JW |
455 | if (IkePacket == NULL) {\r |
456 | return NULL;\r | |
457 | }\r | |
9166f840 | 458 | \r |
459 | //\r | |
460 | // 1.a Fill the IkePacket Header.\r | |
461 | //\r | |
462 | IkePacket->Header->ExchangeType = IKEV2_EXCHANGE_TYPE_AUTH;\r | |
463 | IkePacket->Header->InitiatorCookie = IkeSaSession->InitiatorCookie;\r | |
464 | IkePacket->Header->ResponderCookie = IkeSaSession->ResponderCookie;\r | |
465 | IkePacket->Header->Version = (UINT8)(2 << 4);\r | |
466 | if (ChildSaSession->SessionCommon.IsInitiator) {\r | |
467 | IkePacket->Header->NextPayload = IKEV2_PAYLOAD_TYPE_ID_INIT;\r | |
468 | } else {\r | |
469 | IkePacket->Header->NextPayload = IKEV2_PAYLOAD_TYPE_ID_RSP;\r | |
470 | }\r | |
471 | \r | |
472 | //\r | |
473 | // According to RFC4306_2.2, For the IKE_SA_INIT message the MessageID should \r | |
474 | // be always number 0 and 1;\r | |
475 | //\r | |
476 | IkePacket->Header->MessageId = 1;\r | |
477 | \r | |
478 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
479 | IkePacket->Header->Flags = IKE_HEADER_FLAGS_INIT;\r | |
480 | } else {\r | |
481 | IkePacket->Header->Flags = IKE_HEADER_FLAGS_RESPOND;\r | |
482 | }\r | |
483 | \r | |
484 | //\r | |
485 | // 2. Generate ID Payload according to IP version and address.\r | |
486 | //\r | |
487 | IdPayload = Ikev2GenerateIdPayload (\r | |
488 | &IkeSaSession->SessionCommon,\r | |
489 | IKEV2_PAYLOAD_TYPE_AUTH\r | |
490 | );\r | |
491 | \r | |
492 | //\r | |
493 | // 3. Generate Auth Payload\r | |
494 | // If it is tunnel mode, should create the configuration payload after the\r | |
495 | // Auth payload.\r | |
496 | //\r | |
497 | if (IkeSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTransport) {\r | |
498 | \r | |
499 | AuthPayload = Ikev2PskGenerateAuthPayload (\r | |
500 | ChildSaSession->IkeSaSession,\r | |
501 | IdPayload,\r | |
502 | IKEV2_PAYLOAD_TYPE_SA,\r | |
503 | FALSE\r | |
504 | );\r | |
505 | } else {\r | |
506 | AuthPayload = Ikev2PskGenerateAuthPayload (\r | |
507 | ChildSaSession->IkeSaSession,\r | |
508 | IdPayload,\r | |
509 | IKEV2_PAYLOAD_TYPE_CP,\r | |
510 | FALSE\r | |
511 | );\r | |
512 | if (IkeSaSession->SessionCommon.UdpService->IpVersion == IP_VERSION_4) {\r | |
513 | CpPayload = Ikev2GenerateCpPayload (\r | |
514 | ChildSaSession->IkeSaSession,\r | |
515 | IKEV2_PAYLOAD_TYPE_SA,\r | |
516 | IKEV2_CFG_ATTR_INTERNAL_IP4_ADDRESS\r | |
517 | );\r | |
518 | } else {\r | |
519 | CpPayload = Ikev2GenerateCpPayload (\r | |
520 | ChildSaSession->IkeSaSession,\r | |
521 | IKEV2_PAYLOAD_TYPE_SA,\r | |
522 | IKEV2_CFG_ATTR_INTERNAL_IP6_ADDRESS\r | |
523 | );\r | |
524 | }\r | |
525 | }\r | |
526 | \r | |
527 | //\r | |
528 | // 4. Generate SA Payload according to the SA Data in ChildSaSession\r | |
529 | //\r | |
530 | SaPayload = Ikev2GenerateSaPayload (\r | |
531 | ChildSaSession->SaData,\r | |
532 | IKEV2_PAYLOAD_TYPE_TS_INIT,\r | |
533 | IkeSessionTypeChildSa\r | |
534 | );\r | |
535 | \r | |
536 | if (IkeSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTransport) {\r | |
537 | //\r | |
538 | // Generate Tsi and Tsr.\r | |
539 | //\r | |
540 | TsiPayload = Ikev2GenerateTsPayload (\r | |
541 | ChildSaSession,\r | |
542 | IKEV2_PAYLOAD_TYPE_TS_RSP,\r | |
543 | FALSE\r | |
544 | );\r | |
545 | \r | |
546 | TsrPayload = Ikev2GenerateTsPayload (\r | |
547 | ChildSaSession,\r | |
548 | IKEV2_PAYLOAD_TYPE_NOTIFY,\r | |
549 | FALSE\r | |
550 | );\r | |
551 | \r | |
552 | //\r | |
553 | // Generate Notify Payload. If transport mode, there should have Notify\r | |
554 | // payload with TRANSPORT_MODE notification.\r | |
555 | //\r | |
556 | NotifyPayload = Ikev2GenerateNotifyPayload (\r | |
557 | 0,\r | |
558 | IKEV2_PAYLOAD_TYPE_NONE,\r | |
559 | 0,\r | |
560 | IKEV2_NOTIFICATION_USE_TRANSPORT_MODE,\r | |
561 | NULL,\r | |
562 | NULL,\r | |
563 | 0\r | |
564 | );\r | |
565 | } else {\r | |
566 | //\r | |
567 | // Generate Tsr for Tunnel mode.\r | |
568 | //\r | |
569 | TsiPayload = Ikev2GenerateTsPayload (\r | |
570 | ChildSaSession,\r | |
571 | IKEV2_PAYLOAD_TYPE_TS_RSP,\r | |
572 | TRUE\r | |
573 | );\r | |
574 | TsrPayload = Ikev2GenerateTsPayload (\r | |
575 | ChildSaSession,\r | |
576 | IKEV2_PAYLOAD_TYPE_NONE,\r | |
577 | FALSE\r | |
578 | );\r | |
579 | }\r | |
580 | \r | |
581 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, IdPayload);\r | |
582 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, AuthPayload);\r | |
583 | if (IkeSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTunnel) {\r | |
584 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, CpPayload);\r | |
585 | }\r | |
586 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, SaPayload);\r | |
587 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, TsiPayload);\r | |
588 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, TsrPayload);\r | |
589 | if (IkeSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTransport) {\r | |
590 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, NotifyPayload);\r | |
591 | }\r | |
592 | \r | |
593 | return IkePacket;\r | |
594 | }\r | |
595 | \r | |
596 | /**\r | |
597 | Parses IKE_AUTH packet.\r | |
598 | \r | |
599 | @param[in] SaSession Pointer to the IKE_SA_SESSION related to this packet.\r | |
600 | @param[in] IkePacket Pointer to the IKE_AUTH packet to be parsered.\r | |
601 | \r | |
602 | @retval EFI_INVALID_PARAMETER The IKE packet is malformed or the SA \r | |
603 | proposal is unacceptable.\r | |
604 | @retval EFI_SUCCESS The IKE packet is acceptable and the\r | |
605 | relative data is saved for furthure communication.\r | |
606 | \r | |
607 | **/\r | |
608 | EFI_STATUS \r | |
609 | Ikev2AuthPskParser (\r | |
610 | IN UINT8 *SaSession,\r | |
611 | IN IKE_PACKET *IkePacket\r | |
612 | )\r | |
613 | {\r | |
614 | IKEV2_CHILD_SA_SESSION *ChildSaSession;\r | |
615 | IKEV2_SA_SESSION *IkeSaSession;\r | |
616 | IKE_PAYLOAD *IkePayload;\r | |
617 | IKE_PAYLOAD *SaPayload;\r | |
618 | IKE_PAYLOAD *IdiPayload;\r | |
619 | IKE_PAYLOAD *IdrPayload;\r | |
620 | IKE_PAYLOAD *AuthPayload;\r | |
621 | IKE_PAYLOAD *TsiPayload;\r | |
622 | IKE_PAYLOAD *TsrPayload;\r | |
623 | IKE_PAYLOAD *VerifiedAuthPayload;\r | |
624 | LIST_ENTRY *Entry;\r | |
625 | EFI_STATUS Status;\r | |
626 | \r | |
627 | IkeSaSession = (IKEV2_SA_SESSION *) SaSession;\r | |
628 | ChildSaSession = IKEV2_CHILD_SA_SESSION_BY_IKE_SA (GetFirstNode (&IkeSaSession->ChildSaSessionList));\r | |
629 | \r | |
630 | SaPayload = NULL;\r | |
631 | IdiPayload = NULL;\r | |
632 | IdrPayload = NULL;\r | |
633 | AuthPayload = NULL;\r | |
634 | TsiPayload = NULL;\r | |
635 | TsrPayload = NULL;\r | |
636 | \r | |
637 | //\r | |
638 | // Iterate payloads to find the SaPayload/ID/AUTH/TS Payload.\r | |
639 | //\r | |
640 | NET_LIST_FOR_EACH (Entry, &(IkePacket)->PayloadList) {\r | |
641 | IkePayload = IKE_PAYLOAD_BY_PACKET (Entry);\r | |
642 | \r | |
643 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_ID_INIT) {\r | |
644 | IdiPayload = IkePayload;\r | |
645 | }\r | |
646 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_ID_RSP) {\r | |
647 | IdrPayload = IkePayload;\r | |
648 | }\r | |
649 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_SA) {\r | |
650 | SaPayload = IkePayload;\r | |
651 | }\r | |
652 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_AUTH) {\r | |
653 | AuthPayload = IkePayload;\r | |
654 | }\r | |
655 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_TS_INIT) {\r | |
656 | TsiPayload = IkePayload;\r | |
657 | }\r | |
658 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_TS_RSP) {\r | |
659 | TsrPayload = IkePayload;\r | |
660 | }\r | |
661 | }\r | |
662 | \r | |
663 | if ((SaPayload == NULL) || (AuthPayload == NULL) || (TsiPayload == NULL) || (TsrPayload == NULL)) {\r | |
664 | return EFI_INVALID_PARAMETER;\r | |
665 | }\r | |
666 | if ((IdiPayload == NULL) && (IdrPayload == NULL)) {\r | |
667 | return EFI_INVALID_PARAMETER;\r | |
668 | }\r | |
669 | \r | |
670 | //\r | |
671 | // Check IkePacket Header is match the state\r | |
672 | //\r | |
673 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
674 | \r | |
675 | //\r | |
676 | // 1. Check the IkePacket->Hdr == IKE_HEADER_FLAGS_RESPOND\r | |
677 | //\r | |
678 | if ((IkePacket->Header->Flags != IKE_HEADER_FLAGS_RESPOND) ||\r | |
679 | (IkePacket->Header->ExchangeType != IKEV2_EXCHANGE_TYPE_AUTH)\r | |
680 | ) {\r | |
681 | return EFI_INVALID_PARAMETER;\r | |
682 | }\r | |
683 | \r | |
684 | } else {\r | |
685 | //\r | |
686 | // 1. Check the IkePacket->Hdr == IKE_HEADER_FLAGS_INIT\r | |
687 | //\r | |
688 | if ((IkePacket->Header->Flags != IKE_HEADER_FLAGS_INIT) ||\r | |
689 | (IkePacket->Header->ExchangeType != IKEV2_EXCHANGE_TYPE_AUTH)\r | |
690 | ) {\r | |
691 | return EFI_INVALID_PARAMETER;\r | |
692 | }\r | |
693 | \r | |
694 | //\r | |
695 | // 2. Parse the SA payload and Key Payload and find out the perferable one\r | |
696 | // and fill in the Sa paramse into CommonSession->SaParams and SaData into\r | |
697 | // IkeSaSession for the responder SA payload generation.\r | |
698 | //\r | |
699 | }\r | |
700 | \r | |
701 | //\r | |
702 | // Verify the Auth Payload.\r | |
703 | //\r | |
704 | VerifiedAuthPayload = Ikev2PskGenerateAuthPayload (\r | |
705 | IkeSaSession,\r | |
706 | IkeSaSession->SessionCommon.IsInitiator ? IdrPayload : IdiPayload,\r | |
707 | IKEV2_PAYLOAD_TYPE_SA,\r | |
708 | TRUE\r | |
709 | );\r | |
710 | if ((VerifiedAuthPayload != NULL) &&\r | |
711 | (0 != CompareMem (\r | |
712 | VerifiedAuthPayload->PayloadBuf + sizeof (IKEV2_COMMON_PAYLOAD_HEADER),\r | |
713 | AuthPayload->PayloadBuf + sizeof (IKEV2_COMMON_PAYLOAD_HEADER),\r | |
714 | VerifiedAuthPayload->PayloadSize - sizeof (IKEV2_COMMON_PAYLOAD_HEADER)\r | |
715 | ))) {\r | |
716 | return EFI_INVALID_PARAMETER;\r | |
717 | };\r | |
718 | \r | |
719 | //\r | |
720 | // 3. Parse the SA Payload to find out the cryptographic suite\r | |
721 | // and fill in the Sa paramse into CommonSession->SaParams. If no acceptable\r | |
722 | // porposal found, return EFI_INVALID_PARAMETER.\r | |
723 | //\r | |
724 | if (!Ikev2ChildSaParseSaPayload (ChildSaSession, SaPayload, IkePacket->Header->Flags)) {\r | |
725 | return EFI_INVALID_PARAMETER;\r | |
726 | }\r | |
727 | \r | |
728 | //\r | |
729 | // 4. Parse TSi, TSr payloads.\r | |
730 | //\r | |
731 | if ((((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId !=\r | |
732 | ((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId) &&\r | |
733 | (((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId != 0) &&\r | |
734 | (((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId != 0)\r | |
735 | ) {\r | |
736 | return EFI_INVALID_PARAMETER;\r | |
737 | }\r | |
738 | \r | |
739 | if (!IkeSaSession->SessionCommon.IsInitiator) {\r | |
740 | //\r | |
741 | //TODO:check the Port range. Only support any port and one certain port here.\r | |
742 | //\r | |
743 | ChildSaSession->ProtoId = ((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId;\r | |
744 | ChildSaSession->LocalPort = ((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort;\r | |
745 | ChildSaSession->RemotePort = ((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort;\r | |
746 | //\r | |
747 | // Association a SPD with this SA.\r | |
748 | //\r | |
749 | Status = Ikev2ChildSaAssociateSpdEntry (ChildSaSession);\r | |
750 | if (EFI_ERROR (Status)) {\r | |
751 | return EFI_INVALID_PARAMETER;\r | |
752 | }\r | |
753 | //\r | |
754 | // Associate the IkeSaSession's SPD to the first ChildSaSession's SPD.\r | |
755 | //\r | |
756 | if (ChildSaSession->IkeSaSession->Spd == NULL) {\r | |
757 | ChildSaSession->IkeSaSession->Spd = ChildSaSession->Spd;\r | |
6b16c9e7 JW |
758 | Status = Ikev2ChildSaSessionSpdSelectorCreate (ChildSaSession);\r |
759 | if (EFI_ERROR (Status)) {\r | |
760 | return Status;\r | |
761 | }\r | |
9166f840 | 762 | }\r |
763 | } else {\r | |
764 | //\r | |
765 | //TODO:check the Port range.\r | |
766 | //\r | |
767 | if ((((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort != 0) &&\r | |
768 | (((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort != ChildSaSession->RemotePort)\r | |
769 | ) {\r | |
770 | return EFI_INVALID_PARAMETER;\r | |
771 | } \r | |
772 | if ((((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort != 0) &&\r | |
773 | (((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort != ChildSaSession->LocalPort)\r | |
774 | ) {\r | |
775 | return EFI_INVALID_PARAMETER;\r | |
776 | }\r | |
777 | //\r | |
778 | // For the tunnel mode, it should add the vitual IP address into the SA's SPD Selector.\r | |
779 | //\r | |
780 | if (ChildSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTunnel) {\r | |
781 | if (!ChildSaSession->IkeSaSession->SessionCommon.IsInitiator) {\r | |
782 | //\r | |
783 | // If it is tunnel mode, the UEFI part must be the initiator.\r | |
784 | //\r | |
785 | return EFI_INVALID_PARAMETER;\r | |
786 | }\r | |
787 | //\r | |
788 | // Get the Virtual IP address from the Tsi traffic selector. \r | |
789 | // TODO: check the CFG reply payload\r | |
790 | //\r | |
791 | CopyMem (\r | |
792 | &ChildSaSession->SpdSelector->LocalAddress[0].Address,\r | |
793 | TsiPayload->PayloadBuf + sizeof (IKEV2_TS) + sizeof (TRAFFIC_SELECTOR),\r | |
794 | (ChildSaSession->SessionCommon.UdpService->IpVersion == IP_VERSION_4) ?\r | |
795 | sizeof (EFI_IPv4_ADDRESS) : sizeof (EFI_IPv6_ADDRESS)\r | |
796 | );\r | |
797 | } \r | |
798 | }\r | |
799 | \r | |
800 | //\r | |
801 | // 5. Generate keymats for IPsec protocol.\r | |
802 | //\r | |
803 | Ikev2GenerateChildSaKeys (ChildSaSession, NULL);\r | |
804 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
805 | //\r | |
806 | // 6. Change the state of IkeSaSession\r | |
807 | //\r | |
808 | IKEV2_DUMP_STATE (IkeSaSession->SessionCommon.State, IkeStateIkeSaEstablished);\r | |
809 | IkeSaSession->SessionCommon.State = IkeStateIkeSaEstablished;\r | |
810 | }\r | |
811 | \r | |
812 | return EFI_SUCCESS;\r | |
813 | }\r | |
814 | \r | |
815 | /**\r | |
816 | Gernerates IKEv2 packet for IKE_SA_INIT exchange.\r | |
817 | \r | |
818 | @param[in] SaSession Pointer to IKEV2_SA_SESSION related to the exchange.\r | |
819 | @param[in] Context Context Data passed by caller.\r | |
820 | \r | |
821 | @retval EFI_SUCCESS The IKE packet generation succeeded.\r | |
822 | @retval Others The IKE packet generation failed.\r | |
823 | \r | |
824 | **/\r | |
825 | IKE_PACKET*\r | |
826 | Ikev2InitCertGenerator (\r | |
827 | IN UINT8 *SaSession,\r | |
828 | IN VOID *Context\r | |
829 | ) \r | |
830 | {\r | |
831 | IKE_PACKET *IkePacket;\r | |
832 | IKE_PAYLOAD *CertReqPayload;\r | |
833 | LIST_ENTRY *Node;\r | |
834 | IKE_PAYLOAD *NoncePayload;\r | |
835 | \r | |
bfd4204b | 836 | if (!FeaturePcdGet (PcdIpsecCertificateEnabled)) {\r |
9166f840 | 837 | return NULL;\r |
838 | }\r | |
839 | \r | |
840 | //\r | |
841 | // The first two messages exchange is same between PSK and Cert.\r | |
842 | //\r | |
843 | IkePacket = Ikev2InitPskGenerator (SaSession, Context);\r | |
844 | \r | |
845 | if ((IkePacket != NULL) && (!((IKEV2_SA_SESSION *)SaSession)->SessionCommon.IsInitiator)) {\r | |
846 | //\r | |
847 | // Add the Certification Request Payload\r | |
848 | //\r | |
849 | CertReqPayload = Ikev2GenerateCertificatePayload (\r | |
850 | (IKEV2_SA_SESSION *)SaSession,\r | |
851 | IKEV2_PAYLOAD_TYPE_NONE,\r | |
bfd4204b | 852 | (UINT8*)PcdGetPtr(PcdIpsecUefiCaFile),\r |
853 | PcdGet32(PcdIpsecUefiCaFileSize),\r | |
9166f840 | 854 | IKEV2_CERT_ENCODEING_HASH_AND_URL_OF_X509_CERT,\r |
855 | TRUE\r | |
856 | );\r | |
857 | //\r | |
858 | // Change Nonce Payload Next payload type.\r | |
859 | //\r | |
860 | IKE_PACKET_END_PAYLOAD (IkePacket, Node);\r | |
861 | NoncePayload = IKE_PAYLOAD_BY_PACKET (Node);\r | |
862 | ((IKEV2_NONCE *)NoncePayload->PayloadBuf)->Header.NextPayload = IKEV2_PAYLOAD_TYPE_CERTREQ;\r | |
863 | \r | |
864 | //\r | |
865 | // Add Certification Request Payload\r | |
866 | //\r | |
867 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, CertReqPayload);\r | |
868 | }\r | |
869 | \r | |
870 | return IkePacket;\r | |
871 | }\r | |
872 | \r | |
873 | /**\r | |
874 | Parses the IKEv2 packet for IKE_SA_INIT exchange.\r | |
875 | \r | |
876 | @param[in] SaSession Pointer to IKEV2_SA_SESSION related to the exchange.\r | |
877 | @param[in] IkePacket The received IKEv2 packet to be parsed.\r | |
878 | \r | |
879 | @retval EFI_SUCCESS The IKEv2 packet is acceptable and the relative data is\r | |
880 | saved for furthure communication.\r | |
881 | @retval EFI_INVALID_PARAMETER The IKE packet is malformed or the SA proposal is unacceptable. \r | |
882 | @retval EFI_UNSUPPORTED The certificate authentication is not supported.\r | |
883 | \r | |
884 | **/\r | |
885 | EFI_STATUS\r | |
886 | Ikev2InitCertParser (\r | |
887 | IN UINT8 *SaSession,\r | |
888 | IN IKE_PACKET *IkePacket\r | |
889 | )\r | |
890 | {\r | |
bfd4204b | 891 | if (!FeaturePcdGet (PcdIpsecCertificateEnabled)) {\r |
9166f840 | 892 | return EFI_UNSUPPORTED;\r |
893 | } \r | |
894 | \r | |
895 | //\r | |
896 | // The first two messages exchange is same between PSK and Cert.\r | |
897 | // Todo: Parse Certificate Request from responder Initial Exchange. \r | |
898 | //\r | |
899 | return Ikev2InitPskParser (SaSession, IkePacket);\r | |
900 | }\r | |
901 | \r | |
902 | /**\r | |
903 | Generates the IKEv2 packet for IKE_AUTH exchange.\r | |
904 | \r | |
905 | @param[in] SaSession Pointer to IKEV2_SA_SESSION.\r | |
906 | @param[in] Context Context data passed by caller.\r | |
907 | \r | |
908 | @retval Pointer to IKEv2 Packet to be sent out.\r | |
909 | \r | |
910 | **/\r | |
911 | IKE_PACKET *\r | |
912 | Ikev2AuthCertGenerator (\r | |
913 | IN UINT8 *SaSession,\r | |
914 | IN VOID *Context\r | |
915 | )\r | |
916 | {\r | |
917 | IKE_PACKET *IkePacket;\r | |
918 | IKEV2_SA_SESSION *IkeSaSession;\r | |
919 | IKE_PAYLOAD *IdPayload;\r | |
920 | IKE_PAYLOAD *AuthPayload;\r | |
921 | IKE_PAYLOAD *SaPayload;\r | |
922 | IKE_PAYLOAD *TsiPayload;\r | |
923 | IKE_PAYLOAD *TsrPayload;\r | |
924 | IKE_PAYLOAD *NotifyPayload;\r | |
925 | IKE_PAYLOAD *CpPayload;\r | |
926 | IKE_PAYLOAD *CertPayload;\r | |
927 | IKE_PAYLOAD *CertReqPayload;\r | |
928 | IKEV2_CHILD_SA_SESSION *ChildSaSession;\r | |
929 | \r | |
bfd4204b | 930 | if (!FeaturePcdGet (PcdIpsecCertificateEnabled)) {\r |
9166f840 | 931 | return NULL;\r |
932 | }\r | |
933 | \r | |
934 | IkeSaSession = (IKEV2_SA_SESSION *) SaSession;\r | |
935 | ChildSaSession = IKEV2_CHILD_SA_SESSION_BY_IKE_SA (GetFirstNode (&IkeSaSession->ChildSaSessionList));\r | |
936 | \r | |
937 | CpPayload = NULL;\r | |
938 | NotifyPayload = NULL;\r | |
939 | CertPayload = NULL;\r | |
940 | CertReqPayload = NULL;\r | |
941 | \r | |
942 | //\r | |
943 | // 1. Allocate IKE Packet\r | |
944 | //\r | |
945 | IkePacket= IkePacketAlloc ();\r | |
6b16c9e7 JW |
946 | if (IkePacket == NULL) {\r |
947 | return NULL;\r | |
948 | }\r | |
9166f840 | 949 | \r |
950 | //\r | |
951 | // 1.a Fill the IkePacket Header.\r | |
952 | //\r | |
953 | IkePacket->Header->ExchangeType = IKEV2_EXCHANGE_TYPE_AUTH;\r | |
954 | IkePacket->Header->InitiatorCookie = IkeSaSession->InitiatorCookie;\r | |
955 | IkePacket->Header->ResponderCookie = IkeSaSession->ResponderCookie;\r | |
956 | IkePacket->Header->Version = (UINT8)(2 << 4);\r | |
957 | if (ChildSaSession->SessionCommon.IsInitiator) {\r | |
958 | IkePacket->Header->NextPayload = IKEV2_PAYLOAD_TYPE_ID_INIT;\r | |
959 | } else {\r | |
960 | IkePacket->Header->NextPayload = IKEV2_PAYLOAD_TYPE_ID_RSP;\r | |
961 | }\r | |
962 | \r | |
963 | //\r | |
964 | // According to RFC4306_2.2, For the IKE_SA_INIT message the MessageID should\r | |
965 | // be always number 0 and 1;\r | |
966 | //\r | |
967 | IkePacket->Header->MessageId = 1;\r | |
968 | \r | |
969 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
970 | IkePacket->Header->Flags = IKE_HEADER_FLAGS_INIT;\r | |
971 | } else {\r | |
972 | IkePacket->Header->Flags = IKE_HEADER_FLAGS_RESPOND;\r | |
973 | }\r | |
974 | \r | |
975 | //\r | |
976 | // 2. Generate ID Payload according to IP version and address.\r | |
977 | //\r | |
978 | IdPayload = Ikev2GenerateCertIdPayload (\r | |
979 | &IkeSaSession->SessionCommon,\r | |
980 | IKEV2_PAYLOAD_TYPE_CERT,\r | |
bfd4204b | 981 | (UINT8 *)PcdGetPtr (PcdIpsecUefiCertificate),\r |
982 | PcdGet32 (PcdIpsecUefiCertificateSize)\r | |
9166f840 | 983 | );\r |
984 | \r | |
985 | //\r | |
986 | // 3. Generate Certificate Payload\r | |
987 | //\r | |
988 | CertPayload = Ikev2GenerateCertificatePayload (\r | |
989 | IkeSaSession,\r | |
990 | (UINT8)(IkeSaSession->SessionCommon.IsInitiator ? IKEV2_PAYLOAD_TYPE_CERTREQ : IKEV2_PAYLOAD_TYPE_AUTH),\r | |
bfd4204b | 991 | (UINT8 *)PcdGetPtr (PcdIpsecUefiCertificate),\r |
992 | PcdGet32 (PcdIpsecUefiCertificateSize),\r | |
9166f840 | 993 | IKEV2_CERT_ENCODEING_X509_CERT_SIGN,\r |
994 | FALSE\r | |
995 | );\r | |
996 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
997 | CertReqPayload = Ikev2GenerateCertificatePayload (\r | |
998 | IkeSaSession,\r | |
999 | IKEV2_PAYLOAD_TYPE_AUTH,\r | |
bfd4204b | 1000 | (UINT8 *)PcdGetPtr (PcdIpsecUefiCertificate),\r |
1001 | PcdGet32 (PcdIpsecUefiCertificateSize),\r | |
9166f840 | 1002 | IKEV2_CERT_ENCODEING_HASH_AND_URL_OF_X509_CERT,\r |
1003 | TRUE\r | |
1004 | );\r | |
1005 | }\r | |
1006 | \r | |
1007 | //\r | |
1008 | // 4. Generate Auth Payload\r | |
1009 | // If it is tunnel mode, should create the configuration payload after the\r | |
1010 | // Auth payload.\r | |
1011 | //\r | |
1012 | if (IkeSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTransport) {\r | |
1013 | AuthPayload = Ikev2CertGenerateAuthPayload (\r | |
1014 | ChildSaSession->IkeSaSession,\r | |
1015 | IdPayload,\r | |
1016 | IKEV2_PAYLOAD_TYPE_SA,\r | |
1017 | FALSE,\r | |
bfd4204b | 1018 | (UINT8 *)PcdGetPtr (PcdIpsecUefiCertificateKey),\r |
1019 | PcdGet32 (PcdIpsecUefiCertificateKeySize),\r | |
9166f840 | 1020 | ChildSaSession->IkeSaSession->Pad->Data->AuthData,\r |
1021 | ChildSaSession->IkeSaSession->Pad->Data->AuthDataSize\r | |
1022 | );\r | |
1023 | } else {\r | |
1024 | AuthPayload = Ikev2CertGenerateAuthPayload (\r | |
1025 | ChildSaSession->IkeSaSession,\r | |
1026 | IdPayload,\r | |
1027 | IKEV2_PAYLOAD_TYPE_CP,\r | |
1028 | FALSE,\r | |
bfd4204b | 1029 | (UINT8 *)PcdGetPtr (PcdIpsecUefiCertificateKey),\r |
1030 | PcdGet32 (PcdIpsecUefiCertificateKeySize),\r | |
9166f840 | 1031 | ChildSaSession->IkeSaSession->Pad->Data->AuthData,\r |
1032 | ChildSaSession->IkeSaSession->Pad->Data->AuthDataSize\r | |
1033 | );\r | |
1034 | if (IkeSaSession->SessionCommon.UdpService->IpVersion == IP_VERSION_4) {\r | |
1035 | CpPayload = Ikev2GenerateCpPayload (\r | |
1036 | ChildSaSession->IkeSaSession,\r | |
1037 | IKEV2_PAYLOAD_TYPE_SA,\r | |
1038 | IKEV2_CFG_ATTR_INTERNAL_IP4_ADDRESS\r | |
1039 | );\r | |
1040 | } else {\r | |
1041 | CpPayload = Ikev2GenerateCpPayload (\r | |
1042 | ChildSaSession->IkeSaSession,\r | |
1043 | IKEV2_PAYLOAD_TYPE_SA,\r | |
1044 | IKEV2_CFG_ATTR_INTERNAL_IP6_ADDRESS\r | |
1045 | );\r | |
1046 | }\r | |
1047 | }\r | |
1048 | \r | |
1049 | //\r | |
1050 | // 5. Generate SA Payload according to the Sa Data in ChildSaSession\r | |
1051 | //\r | |
1052 | SaPayload = Ikev2GenerateSaPayload (\r | |
1053 | ChildSaSession->SaData,\r | |
1054 | IKEV2_PAYLOAD_TYPE_TS_INIT,\r | |
1055 | IkeSessionTypeChildSa\r | |
1056 | );\r | |
1057 | \r | |
1058 | if (IkeSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTransport) {\r | |
1059 | //\r | |
1060 | // Generate Tsi and Tsr.\r | |
1061 | //\r | |
1062 | TsiPayload = Ikev2GenerateTsPayload (\r | |
1063 | ChildSaSession,\r | |
1064 | IKEV2_PAYLOAD_TYPE_TS_RSP,\r | |
1065 | FALSE\r | |
1066 | );\r | |
1067 | \r | |
1068 | TsrPayload = Ikev2GenerateTsPayload (\r | |
1069 | ChildSaSession,\r | |
1070 | IKEV2_PAYLOAD_TYPE_NOTIFY,\r | |
1071 | FALSE\r | |
1072 | );\r | |
1073 | \r | |
1074 | //\r | |
1075 | // Generate Notify Payload. If transport mode, there should have Notify \r | |
1076 | // payload with TRANSPORT_MODE notification.\r | |
1077 | //\r | |
1078 | NotifyPayload = Ikev2GenerateNotifyPayload (\r | |
1079 | 0,\r | |
1080 | IKEV2_PAYLOAD_TYPE_NONE,\r | |
1081 | 0,\r | |
1082 | IKEV2_NOTIFICATION_USE_TRANSPORT_MODE,\r | |
1083 | NULL,\r | |
1084 | NULL,\r | |
1085 | 0\r | |
1086 | );\r | |
1087 | } else {\r | |
1088 | //\r | |
1089 | // Generate Tsr for Tunnel mode.\r | |
1090 | //\r | |
1091 | TsiPayload = Ikev2GenerateTsPayload (\r | |
1092 | ChildSaSession,\r | |
1093 | IKEV2_PAYLOAD_TYPE_TS_RSP,\r | |
1094 | TRUE\r | |
1095 | );\r | |
1096 | TsrPayload = Ikev2GenerateTsPayload (\r | |
1097 | ChildSaSession,\r | |
1098 | IKEV2_PAYLOAD_TYPE_NONE,\r | |
1099 | FALSE\r | |
1100 | );\r | |
1101 | }\r | |
1102 | \r | |
1103 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, IdPayload);\r | |
1104 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, CertPayload);\r | |
1105 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
1106 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, CertReqPayload);\r | |
1107 | }\r | |
1108 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, AuthPayload);\r | |
1109 | if (IkeSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTunnel) {\r | |
1110 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, CpPayload);\r | |
1111 | }\r | |
1112 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, SaPayload);\r | |
1113 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, TsiPayload);\r | |
1114 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, TsrPayload);\r | |
1115 | if (IkeSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTransport) {\r | |
1116 | IKE_PACKET_APPEND_PAYLOAD (IkePacket, NotifyPayload);\r | |
1117 | }\r | |
1118 | \r | |
1119 | return IkePacket;\r | |
1120 | }\r | |
1121 | \r | |
1122 | /**\r | |
1123 | Parses IKE_AUTH packet.\r | |
1124 | \r | |
1125 | @param[in] SaSession Pointer to the IKE_SA_SESSION related to this packet.\r | |
1126 | @param[in] IkePacket Pointer to the IKE_AUTH packet to be parsered.\r | |
1127 | \r | |
1128 | @retval EFI_INVALID_PARAMETER The IKEv2 packet is malformed or the SA\r | |
1129 | proposal is unacceptable.\r | |
1130 | @retval EFI_SUCCESS The IKE packet is acceptable and the\r | |
1131 | relative data is saved for furthure communication.\r | |
1132 | @retval EFI_UNSUPPORTED The certificate authentication is not supported.\r | |
1133 | \r | |
1134 | **/\r | |
1135 | EFI_STATUS\r | |
1136 | Ikev2AuthCertParser (\r | |
1137 | IN UINT8 *SaSession,\r | |
1138 | IN IKE_PACKET *IkePacket\r | |
1139 | )\r | |
1140 | {\r | |
1141 | IKEV2_CHILD_SA_SESSION *ChildSaSession;\r | |
1142 | IKEV2_SA_SESSION *IkeSaSession;\r | |
1143 | IKE_PAYLOAD *IkePayload;\r | |
1144 | IKE_PAYLOAD *SaPayload;\r | |
1145 | IKE_PAYLOAD *IdiPayload;\r | |
1146 | IKE_PAYLOAD *IdrPayload;\r | |
1147 | IKE_PAYLOAD *AuthPayload;\r | |
1148 | IKE_PAYLOAD *TsiPayload;\r | |
1149 | IKE_PAYLOAD *TsrPayload;\r | |
1150 | IKE_PAYLOAD *CertPayload;\r | |
9166f840 | 1151 | IKE_PAYLOAD *VerifiedAuthPayload;\r |
1152 | LIST_ENTRY *Entry;\r | |
1153 | EFI_STATUS Status;\r | |
1154 | \r | |
bfd4204b | 1155 | if (!FeaturePcdGet (PcdIpsecCertificateEnabled)) {\r |
9166f840 | 1156 | return EFI_UNSUPPORTED;\r |
1157 | }\r | |
1158 | \r | |
1159 | IkeSaSession = (IKEV2_SA_SESSION *) SaSession;\r | |
1160 | ChildSaSession = IKEV2_CHILD_SA_SESSION_BY_IKE_SA (GetFirstNode (&IkeSaSession->ChildSaSessionList));\r | |
1161 | \r | |
1162 | SaPayload = NULL;\r | |
1163 | IdiPayload = NULL;\r | |
1164 | IdrPayload = NULL;\r | |
1165 | AuthPayload = NULL;\r | |
1166 | TsiPayload = NULL;\r | |
1167 | TsrPayload = NULL;\r | |
1168 | CertPayload = NULL;\r | |
9166f840 | 1169 | VerifiedAuthPayload = NULL;\r |
1170 | Status = EFI_INVALID_PARAMETER;\r | |
1171 | \r | |
1172 | //\r | |
1173 | // Iterate payloads to find the SaPayload/ID/AUTH/TS Payload.\r | |
1174 | //\r | |
1175 | NET_LIST_FOR_EACH (Entry, &(IkePacket)->PayloadList) {\r | |
1176 | IkePayload = IKE_PAYLOAD_BY_PACKET (Entry);\r | |
1177 | \r | |
1178 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_ID_INIT) {\r | |
1179 | IdiPayload = IkePayload;\r | |
1180 | }\r | |
1181 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_ID_RSP) {\r | |
1182 | IdrPayload = IkePayload;\r | |
1183 | }\r | |
1184 | \r | |
1185 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_SA) {\r | |
1186 | SaPayload = IkePayload;\r | |
1187 | }\r | |
1188 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_AUTH) {\r | |
1189 | AuthPayload = IkePayload;\r | |
1190 | }\r | |
1191 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_TS_INIT) {\r | |
1192 | TsiPayload = IkePayload;\r | |
1193 | }\r | |
1194 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_TS_RSP) {\r | |
1195 | TsrPayload = IkePayload;\r | |
1196 | }\r | |
1197 | if (IkePayload->PayloadType == IKEV2_PAYLOAD_TYPE_CERT) {\r | |
1198 | CertPayload = IkePayload;\r | |
1199 | }\r | |
9166f840 | 1200 | }\r |
1201 | \r | |
1202 | if ((SaPayload == NULL) || (AuthPayload == NULL) || (TsiPayload == NULL) || \r | |
1203 | (TsrPayload == NULL) || (CertPayload == NULL)) {\r | |
1204 | goto Exit;\r | |
1205 | }\r | |
1206 | if ((IdiPayload == NULL) && (IdrPayload == NULL)) {\r | |
1207 | goto Exit;\r | |
1208 | }\r | |
1209 | \r | |
1210 | //\r | |
1211 | // Check IkePacket Header is match the state\r | |
1212 | //\r | |
1213 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
1214 | \r | |
1215 | //\r | |
1216 | // 1. Check the IkePacket->Hdr == IKE_HEADER_FLAGS_RESPOND\r | |
1217 | //\r | |
1218 | if ((IkePacket->Header->Flags != IKE_HEADER_FLAGS_RESPOND) ||\r | |
1219 | (IkePacket->Header->ExchangeType != IKEV2_EXCHANGE_TYPE_AUTH)) {\r | |
1220 | goto Exit;\r | |
1221 | }\r | |
1222 | } else {\r | |
1223 | //\r | |
1224 | // 1. Check the IkePacket->Hdr == IKE_HEADER_FLAGS_INIT\r | |
1225 | //\r | |
1226 | if ((IkePacket->Header->Flags != IKE_HEADER_FLAGS_INIT) ||\r | |
1227 | (IkePacket->Header->ExchangeType != IKEV2_EXCHANGE_TYPE_AUTH)) {\r | |
1228 | goto Exit;\r | |
1229 | }\r | |
1230 | }\r | |
1231 | \r | |
1232 | //\r | |
1233 | // Verify the Auth Payload.\r | |
1234 | //\r | |
1235 | VerifiedAuthPayload = Ikev2CertGenerateAuthPayload (\r | |
1236 | IkeSaSession,\r | |
1237 | IkeSaSession->SessionCommon.IsInitiator ? IdrPayload:IdiPayload,\r | |
1238 | IKEV2_PAYLOAD_TYPE_SA,\r | |
1239 | TRUE,\r | |
1240 | NULL,\r | |
1241 | 0,\r | |
1242 | NULL,\r | |
1243 | 0\r | |
1244 | );\r | |
1245 | \r | |
1246 | if ((VerifiedAuthPayload != NULL) &&\r | |
1247 | (!IpSecCryptoIoVerifySignDataByCertificate (\r | |
1248 | CertPayload->PayloadBuf + sizeof (IKEV2_CERT),\r | |
1249 | CertPayload->PayloadSize - sizeof (IKEV2_CERT),\r | |
bfd4204b | 1250 | (UINT8 *)PcdGetPtr (PcdIpsecUefiCaFile),\r |
1251 | PcdGet32 (PcdIpsecUefiCaFileSize),\r | |
9166f840 | 1252 | VerifiedAuthPayload->PayloadBuf + sizeof (IKEV2_AUTH),\r |
1253 | VerifiedAuthPayload->PayloadSize - sizeof (IKEV2_AUTH),\r | |
1254 | AuthPayload->PayloadBuf + sizeof (IKEV2_AUTH),\r | |
1255 | AuthPayload->PayloadSize - sizeof (IKEV2_AUTH)\r | |
1256 | ))) {\r | |
1257 | goto Exit;\r | |
1258 | }\r | |
1259 | \r | |
1260 | //\r | |
1261 | // 3. Parse the SA Payload to find out the cryptographic suite\r | |
1262 | // and fill in the SA paramse into CommonSession->SaParams. If no acceptable\r | |
1263 | // porposal found, return EFI_INVALID_PARAMETER.\r | |
1264 | //\r | |
1265 | if (!Ikev2ChildSaParseSaPayload (ChildSaSession, SaPayload, IkePacket->Header->Flags)) {\r | |
1266 | goto Exit;\r | |
1267 | }\r | |
1268 | \r | |
1269 | //\r | |
1270 | // 4. Parse TSi, TSr payloads.\r | |
1271 | //\r | |
1272 | if ((((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId !=\r | |
1273 | ((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId) &&\r | |
1274 | (((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId != 0) &&\r | |
1275 | (((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId != 0)\r | |
1276 | ) {\r | |
1277 | goto Exit;\r | |
1278 | }\r | |
1279 | \r | |
1280 | if (!IkeSaSession->SessionCommon.IsInitiator) {\r | |
1281 | //\r | |
1282 | //Todo:check the Port range. Only support any port and one certain port here.\r | |
1283 | //\r | |
1284 | ChildSaSession->ProtoId = ((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->IpProtocolId;\r | |
1285 | ChildSaSession->LocalPort = ((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort;\r | |
1286 | ChildSaSession->RemotePort = ((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort;\r | |
1287 | //\r | |
1288 | // Association a SPD with this SA.\r | |
1289 | //\r | |
1290 | if (EFI_ERROR (Ikev2ChildSaAssociateSpdEntry (ChildSaSession))) {\r | |
1291 | goto Exit;\r | |
1292 | }\r | |
1293 | //\r | |
1294 | // Associate the IkeSaSession's SPD to the first ChildSaSession's SPD.\r | |
1295 | //\r | |
1296 | if (ChildSaSession->IkeSaSession->Spd == NULL) {\r | |
1297 | ChildSaSession->IkeSaSession->Spd = ChildSaSession->Spd;\r | |
6b16c9e7 JW |
1298 | Status = Ikev2ChildSaSessionSpdSelectorCreate (ChildSaSession);\r |
1299 | if (EFI_ERROR (Status)) {\r | |
1300 | goto Exit;\r | |
1301 | }\r | |
9166f840 | 1302 | }\r |
1303 | } else {\r | |
1304 | //\r | |
1305 | // Todo:check the Port range.\r | |
1306 | //\r | |
1307 | if ((((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort != 0) &&\r | |
1308 | (((TRAFFIC_SELECTOR *)(TsrPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort != ChildSaSession->RemotePort)\r | |
1309 | ) {\r | |
1310 | goto Exit;\r | |
1311 | } \r | |
1312 | if ((((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort != 0) &&\r | |
1313 | (((TRAFFIC_SELECTOR *)(TsiPayload->PayloadBuf + sizeof (IKEV2_TS)))->StartPort != ChildSaSession->LocalPort)\r | |
1314 | ) {\r | |
1315 | goto Exit;\r | |
1316 | }\r | |
1317 | //\r | |
1318 | // For the tunnel mode, it should add the vitual IP address into the SA's SPD Selector.\r | |
1319 | //\r | |
1320 | if (ChildSaSession->Spd->Data->ProcessingPolicy->Mode == EfiIPsecTunnel) {\r | |
1321 | if (!ChildSaSession->IkeSaSession->SessionCommon.IsInitiator) {\r | |
1322 | //\r | |
1323 | // If it is tunnel mode, the UEFI part must be the initiator.\r | |
1324 | //\r | |
1325 | goto Exit;\r | |
1326 | }\r | |
1327 | //\r | |
1328 | // Get the Virtual IP address from the Tsi traffic selector. \r | |
1329 | // TODO: check the CFG reply payload\r | |
1330 | //\r | |
1331 | CopyMem (\r | |
1332 | &ChildSaSession->SpdSelector->LocalAddress[0].Address,\r | |
1333 | TsiPayload->PayloadBuf + sizeof (IKEV2_TS) + sizeof (TRAFFIC_SELECTOR),\r | |
1334 | (ChildSaSession->SessionCommon.UdpService->IpVersion == IP_VERSION_4) ?\r | |
1335 | sizeof (EFI_IPv4_ADDRESS) : sizeof (EFI_IPv6_ADDRESS)\r | |
1336 | );\r | |
1337 | }\r | |
1338 | }\r | |
1339 | \r | |
1340 | //\r | |
1341 | // 5. Generat keymats for IPsec protocol.\r | |
1342 | //\r | |
1343 | Ikev2GenerateChildSaKeys (ChildSaSession, NULL);\r | |
1344 | if (IkeSaSession->SessionCommon.IsInitiator) {\r | |
1345 | //\r | |
1346 | // 6. Change the state of IkeSaSession\r | |
1347 | //\r | |
1348 | IKEV2_DUMP_STATE (IkeSaSession->SessionCommon.State, IkeStateIkeSaEstablished);\r | |
1349 | IkeSaSession->SessionCommon.State = IkeStateIkeSaEstablished;\r | |
1350 | }\r | |
1351 | \r | |
1352 | Status = EFI_SUCCESS;\r | |
1353 | \r | |
1354 | Exit:\r | |
1355 | if (VerifiedAuthPayload != NULL) {\r | |
1356 | IkePayloadFree (VerifiedAuthPayload);\r | |
1357 | }\r | |
1358 | return Status;\r | |
1359 | }\r | |
1360 | \r | |
1361 | /**\r | |
1362 | Generates the DH Public Key.\r | |
1363 | \r | |
1364 | This generates the DH local public key and store it in the IKE SA Session's GxBuffer.\r | |
1365 | \r | |
1366 | @param[in] IkeSaSession Pointer to related IKE SA Session.\r | |
1367 | \r | |
1368 | @retval EFI_SUCCESS The operation succeeded.\r | |
1369 | @retval Others The operation failed.\r | |
1370 | \r | |
1371 | **/\r | |
1372 | EFI_STATUS\r | |
1373 | Ikev2GenerateSaDhPublicKey (\r | |
1374 | IN IKEV2_SA_SESSION *IkeSaSession\r | |
1375 | )\r | |
1376 | {\r | |
1377 | EFI_STATUS Status;\r | |
1378 | IKEV2_SESSION_KEYS *IkeKeys;\r | |
1379 | \r | |
1380 | IkeSaSession->IkeKeys = AllocateZeroPool (sizeof (IKEV2_SESSION_KEYS));\r | |
6b16c9e7 JW |
1381 | if (IkeSaSession->IkeKeys == NULL) {\r |
1382 | return EFI_OUT_OF_RESOURCES;\r | |
1383 | }\r | |
1384 | \r | |
9166f840 | 1385 | IkeKeys = IkeSaSession->IkeKeys;\r |
1386 | IkeKeys->DhBuffer = AllocateZeroPool (sizeof (IKEV2_DH_BUFFER));\r | |
6b16c9e7 JW |
1387 | if (IkeKeys->DhBuffer == NULL) {\r |
1388 | FreePool (IkeSaSession->IkeKeys);\r | |
1389 | return EFI_OUT_OF_RESOURCES;\r | |
1390 | }\r | |
9166f840 | 1391 | \r |
1392 | //\r | |
1393 | // Init DH with the certain DH Group Description.\r | |
1394 | //\r | |
1395 | IkeKeys->DhBuffer->GxSize = OakleyModpGroup[(UINT8)IkeSaSession->SessionCommon.PreferDhGroup].Size >> 3;\r | |
1396 | IkeKeys->DhBuffer->GxBuffer = AllocateZeroPool (IkeKeys->DhBuffer->GxSize);\r | |
6b16c9e7 JW |
1397 | if (IkeKeys->DhBuffer->GxBuffer == NULL) {\r |
1398 | FreePool (IkeKeys->DhBuffer);\r | |
1399 | FreePool (IkeSaSession->IkeKeys);\r | |
1400 | return EFI_OUT_OF_RESOURCES;\r | |
1401 | }\r | |
9166f840 | 1402 | \r |
1403 | //\r | |
1404 | // Get X PublicKey\r | |
1405 | //\r | |
1406 | Status = IpSecCryptoIoDhGetPublicKey (\r | |
1407 | &IkeKeys->DhBuffer->DhContext,\r | |
1408 | OakleyModpGroup[(UINT8)IkeSaSession->SessionCommon.PreferDhGroup].GroupGenerator,\r | |
1409 | OakleyModpGroup[(UINT8)IkeSaSession->SessionCommon.PreferDhGroup].Size,\r | |
1410 | OakleyModpGroup[(UINT8)IkeSaSession->SessionCommon.PreferDhGroup].Modulus,\r | |
1411 | IkeKeys->DhBuffer->GxBuffer,\r | |
1412 | &IkeKeys->DhBuffer->GxSize\r | |
1413 | );\r | |
1414 | if (EFI_ERROR (Status)) {\r | |
1415 | DEBUG ((DEBUG_ERROR, "Error CPLKeyManGetKeyParam X public key error Status = %r\n", Status));\r | |
6b16c9e7 JW |
1416 | \r |
1417 | FreePool (IkeKeys->DhBuffer->GxBuffer);\r | |
1418 | \r | |
1419 | FreePool (IkeKeys->DhBuffer);\r | |
1420 | \r | |
1421 | FreePool (IkeSaSession->IkeKeys);\r | |
1422 | \r | |
9166f840 | 1423 | return Status;\r |
1424 | }\r | |
1425 | \r | |
1426 | IPSEC_DUMP_BUF ("DH Public Key (g^x) Dump", IkeKeys->DhBuffer->GxBuffer, IkeKeys->DhBuffer->GxSize);\r | |
1427 | \r | |
1428 | return EFI_SUCCESS;\r | |
1429 | }\r | |
1430 | \r | |
1431 | /**\r | |
1432 | Computes the DH Shared/Exchange Key.\r | |
1433 | \r | |
1434 | Given peer's public key, this function computes the exchanged common key and\r | |
1435 | stores it in the IKEv2 SA Session's GxyBuffer.\r | |
1436 | \r | |
1437 | @param[in] DhBuffer Pointer to buffer of peer's puliic key.\r | |
1438 | @param[in] KePayload Pointer to received key payload.\r | |
1439 | \r | |
1440 | @retval EFI_SUCCESS The operation succeeded.\r | |
1441 | @retval Otherwise The operation failed.\r | |
1442 | \r | |
1443 | **/\r | |
1444 | EFI_STATUS\r | |
1445 | Ikev2GenerateSaDhComputeKey (\r | |
1446 | IN IKEV2_DH_BUFFER *DhBuffer,\r | |
1447 | IN IKE_PAYLOAD *KePayload\r | |
1448 | )\r | |
1449 | {\r | |
1450 | EFI_STATUS Status;\r | |
1451 | IKEV2_KEY_EXCHANGE *Ke;\r | |
1452 | UINT8 *PubKey;\r | |
1453 | UINTN PubKeySize;\r | |
1454 | \r | |
1455 | Ke = (IKEV2_KEY_EXCHANGE *) KePayload->PayloadBuf;\r | |
1456 | PubKey = (UINT8 *) (Ke + 1);\r | |
1457 | PubKeySize = KePayload->PayloadSize - sizeof (IKEV2_KEY_EXCHANGE);\r | |
1458 | DhBuffer->GxySize = DhBuffer->GxSize;\r | |
1459 | DhBuffer->GxyBuffer = AllocateZeroPool (DhBuffer->GxySize);\r | |
6b16c9e7 JW |
1460 | if (DhBuffer->GxyBuffer == NULL) {\r |
1461 | return EFI_OUT_OF_RESOURCES;\r | |
1462 | }\r | |
9166f840 | 1463 | \r |
1464 | //\r | |
1465 | // Get GxyBuf\r | |
1466 | //\r | |
1467 | Status = IpSecCryptoIoDhComputeKey (\r | |
1468 | DhBuffer->DhContext,\r | |
1469 | PubKey,\r | |
1470 | PubKeySize,\r | |
1471 | DhBuffer->GxyBuffer,\r | |
1472 | &DhBuffer->GxySize\r | |
1473 | );\r | |
1474 | if (EFI_ERROR (Status)) {\r | |
1475 | DEBUG ((DEBUG_ERROR, "Error CPLKeyManGetKeyParam Y session key error Status = %r\n", Status));\r | |
6b16c9e7 JW |
1476 | \r |
1477 | FreePool (DhBuffer->GxyBuffer);\r | |
1478 | \r | |
9166f840 | 1479 | return Status;\r |
1480 | }\r | |
1481 | \r | |
1482 | //\r | |
1483 | // Create GxyBuf.\r | |
1484 | //\r | |
1485 | DhBuffer->GySize = PubKeySize;\r | |
1486 | DhBuffer->GyBuffer = AllocateZeroPool (DhBuffer->GySize);\r | |
6b16c9e7 JW |
1487 | if (DhBuffer->GyBuffer == NULL) {\r |
1488 | FreePool (DhBuffer->GxyBuffer);\r | |
1489 | \r | |
1490 | return Status;\r | |
1491 | }\r | |
1492 | \r | |
9166f840 | 1493 | CopyMem (DhBuffer->GyBuffer, PubKey, DhBuffer->GySize);\r |
1494 | \r | |
1495 | IPSEC_DUMP_BUF ("DH Public Key (g^y) Dump", DhBuffer->GyBuffer, DhBuffer->GySize);\r | |
1496 | IPSEC_DUMP_BUF ("DH Shared Key (g^xy) Dump", DhBuffer->GxyBuffer, DhBuffer->GxySize);\r | |
1497 | \r | |
1498 | return EFI_SUCCESS;\r | |
1499 | }\r | |
1500 | \r | |
1501 | /**\r | |
1502 | Generates the IKE SKEYSEED and seven other secrets. SK_d, SK_ai, SK_ar, SK_ei, SK_er,\r | |
1503 | SK_pi, SK_pr are keys for the furthure IKE exchange.\r | |
1504 | \r | |
1505 | @param[in] IkeSaSession Pointer to IKE SA Session.\r | |
1506 | @param[in] KePayload Pointer to Key payload used to generate the Key.\r | |
1507 | \r | |
1508 | @retval EFI_UNSUPPORTED If one or more Algorithm Id is not supported.\r | |
1509 | @retval EFI_OUT_OF_RESOURCES If there is no enough resource to be allocated to\r | |
1510 | meet the requirement.\r | |
1511 | @retval EFI_SUCCESS The operation succeeded.\r | |
1512 | \r | |
1513 | **/\r | |
1514 | EFI_STATUS\r | |
1515 | Ikev2GenerateSaKeys (\r | |
1516 | IN IKEV2_SA_SESSION *IkeSaSession,\r | |
1517 | IN IKE_PAYLOAD *KePayload\r | |
1518 | )\r | |
1519 | {\r | |
1520 | EFI_STATUS Status;\r | |
1521 | IKEV2_SA_PARAMS *SaParams;\r | |
9166f840 | 1522 | PRF_DATA_FRAGMENT Fragments[4];\r |
1523 | UINT64 InitiatorCookieNet;\r | |
1524 | UINT64 ResponderCookieNet;\r | |
1525 | UINT8 *KeyBuffer;\r | |
1526 | UINTN KeyBufferSize;\r | |
1527 | UINTN AuthAlgKeyLen;\r | |
1528 | UINTN EncryptAlgKeyLen;\r | |
1529 | UINTN IntegrityAlgKeyLen;\r | |
1530 | UINTN PrfAlgKeyLen;\r | |
1531 | UINT8 *OutputKey;\r | |
1532 | UINTN OutputKeyLength;\r | |
1533 | UINT8 *Digest;\r | |
1534 | UINTN DigestSize;\r | |
1535 | \r | |
1536 | Digest = NULL;\r | |
1537 | OutputKey = NULL;\r | |
1538 | KeyBuffer = NULL;\r | |
02a758cb | 1539 | Status = EFI_SUCCESS;\r |
9166f840 | 1540 | \r |
1541 | //\r | |
1542 | // Generate Gxy\r | |
1543 | //\r | |
1544 | Ikev2GenerateSaDhComputeKey (IkeSaSession->IkeKeys->DhBuffer, KePayload);\r | |
1545 | \r | |
9166f840 | 1546 | //\r |
1547 | // Get the key length of Authenticaion, Encryption, PRF, and Integrity.\r | |
1548 | //\r | |
1549 | SaParams = IkeSaSession->SessionCommon.SaParams;\r | |
1550 | AuthAlgKeyLen = IpSecGetHmacDigestLength ((UINT8)SaParams->Prf);\r | |
1551 | EncryptAlgKeyLen = IpSecGetEncryptKeyLength ((UINT8)SaParams->EncAlgId);\r | |
1552 | IntegrityAlgKeyLen = IpSecGetHmacDigestLength ((UINT8)SaParams->IntegAlgId);\r | |
1553 | PrfAlgKeyLen = IpSecGetHmacDigestLength ((UINT8)SaParams->Prf);\r | |
1554 | \r | |
1555 | //\r | |
1556 | // If one or more algorithm is not support, return EFI_UNSUPPORTED.\r | |
1557 | //\r | |
1558 | if (AuthAlgKeyLen == 0 || \r | |
1559 | EncryptAlgKeyLen == 0 ||\r | |
1560 | IntegrityAlgKeyLen == 0 ||\r | |
1561 | PrfAlgKeyLen == 0\r | |
1562 | ) {\r | |
1563 | Status = EFI_UNSUPPORTED;\r | |
1564 | goto Exit;\r | |
1565 | }\r | |
1566 | \r | |
1567 | //\r | |
1568 | // Compute SKEYSEED = prf(Ni | Nr, g^ir)\r | |
1569 | //\r | |
1570 | KeyBufferSize = IkeSaSession->NiBlkSize + IkeSaSession->NrBlkSize;\r | |
1571 | KeyBuffer = AllocateZeroPool (KeyBufferSize);\r | |
6b16c9e7 JW |
1572 | if (KeyBuffer == NULL) {\r |
1573 | Status = EFI_OUT_OF_RESOURCES;\r | |
1574 | goto Exit;\r | |
1575 | }\r | |
9166f840 | 1576 | \r |
1577 | CopyMem (KeyBuffer, IkeSaSession->NiBlock, IkeSaSession->NiBlkSize);\r | |
1578 | CopyMem (KeyBuffer + IkeSaSession->NiBlkSize, IkeSaSession->NrBlock, IkeSaSession->NrBlkSize);\r | |
1579 | \r | |
1580 | Fragments[0].Data = IkeSaSession->IkeKeys->DhBuffer->GxyBuffer;\r | |
1581 | Fragments[0].DataSize = IkeSaSession->IkeKeys->DhBuffer->GxySize;\r | |
1582 | \r | |
1583 | DigestSize = IpSecGetHmacDigestLength ((UINT8)SaParams->Prf);\r | |
1584 | Digest = AllocateZeroPool (DigestSize);\r | |
1585 | \r | |
1586 | if (Digest == NULL) {\r | |
1587 | Status = EFI_OUT_OF_RESOURCES;\r | |
1588 | goto Exit;\r | |
1589 | }\r | |
1590 | \r | |
1591 | IpSecCryptoIoHmac (\r | |
1592 | (UINT8)SaParams->Prf,\r | |
1593 | KeyBuffer,\r | |
1594 | KeyBufferSize,\r | |
1595 | (HASH_DATA_FRAGMENT *) Fragments,\r | |
1596 | 1,\r | |
1597 | Digest,\r | |
1598 | DigestSize\r | |
1599 | );\r | |
1600 | \r | |
1601 | //\r | |
1602 | // {SK_d | SK_ai | SK_ar | SK_ei | SK_er | SK_pi | SK_pr } = prf+\r | |
1603 | // (SKEYSEED, Ni | Nr | SPIi | SPIr )\r | |
1604 | //\r | |
1605 | Fragments[0].Data = IkeSaSession->NiBlock;\r | |
1606 | Fragments[0].DataSize = IkeSaSession->NiBlkSize;\r | |
1607 | Fragments[1].Data = IkeSaSession->NrBlock;\r | |
1608 | Fragments[1].DataSize = IkeSaSession->NrBlkSize;\r | |
1609 | InitiatorCookieNet = HTONLL (IkeSaSession->InitiatorCookie);\r | |
1610 | ResponderCookieNet = HTONLL (IkeSaSession->ResponderCookie);\r | |
1611 | Fragments[2].Data = (UINT8 *)(&InitiatorCookieNet);\r | |
1612 | Fragments[2].DataSize = sizeof (IkeSaSession->InitiatorCookie);\r | |
1613 | Fragments[3].Data = (UINT8 *)(&ResponderCookieNet);\r | |
1614 | Fragments[3].DataSize = sizeof (IkeSaSession->ResponderCookie);\r | |
1615 | \r | |
1616 | IPSEC_DUMP_BUF (">>> NiBlock", IkeSaSession->NiBlock, IkeSaSession->NiBlkSize);\r | |
1617 | IPSEC_DUMP_BUF (">>> NrBlock", IkeSaSession->NrBlock, IkeSaSession->NrBlkSize);\r | |
1618 | IPSEC_DUMP_BUF (">>> InitiatorCookie", (UINT8 *)&IkeSaSession->InitiatorCookie, sizeof(UINT64));\r | |
1619 | IPSEC_DUMP_BUF (">>> ResponderCookie", (UINT8 *)&IkeSaSession->ResponderCookie, sizeof(UINT64));\r | |
1620 | \r | |
1621 | OutputKeyLength = PrfAlgKeyLen + \r | |
1622 | 2 * EncryptAlgKeyLen +\r | |
1623 | 2 * AuthAlgKeyLen +\r | |
1624 | 2 * IntegrityAlgKeyLen;\r | |
1625 | OutputKey = AllocateZeroPool (OutputKeyLength);\r | |
02a758cb | 1626 | if (OutputKey == NULL) {\r |
1627 | Status = EFI_OUT_OF_RESOURCES;\r | |
1628 | goto Exit;\r | |
1629 | }\r | |
9166f840 | 1630 | \r |
1631 | //\r | |
1632 | // Generate Seven Keymates.\r | |
1633 | //\r | |
1634 | Status = Ikev2SaGenerateKey (\r | |
1635 | (UINT8)SaParams->Prf,\r | |
1636 | Digest,\r | |
1637 | DigestSize,\r | |
1638 | OutputKey,\r | |
1639 | OutputKeyLength,\r | |
1640 | Fragments,\r | |
1641 | 4\r | |
1642 | );\r | |
1643 | if (EFI_ERROR(Status)) {\r | |
1644 | goto Exit;\r | |
1645 | }\r | |
1646 | \r | |
1647 | //\r | |
1648 | // Save the seven keys into KeySession.\r | |
1649 | // First, SK_d\r | |
1650 | //\r | |
1651 | IkeSaSession->IkeKeys->SkdKey = AllocateZeroPool (PrfAlgKeyLen);\r | |
02a758cb | 1652 | if (IkeSaSession->IkeKeys->SkdKey == NULL) {\r |
1653 | Status = EFI_OUT_OF_RESOURCES;\r | |
1654 | goto Exit;\r | |
1655 | }\r | |
9166f840 | 1656 | IkeSaSession->IkeKeys->SkdKeySize = PrfAlgKeyLen;\r |
1657 | CopyMem (IkeSaSession->IkeKeys->SkdKey, OutputKey, PrfAlgKeyLen);\r | |
1658 | \r | |
1659 | IPSEC_DUMP_BUF (">>> SK_D Key", IkeSaSession->IkeKeys->SkdKey, PrfAlgKeyLen);\r | |
1660 | \r | |
1661 | //\r | |
1662 | // Second, Sk_ai\r | |
1663 | //\r | |
1664 | IkeSaSession->IkeKeys->SkAiKey = AllocateZeroPool (IntegrityAlgKeyLen);\r | |
02a758cb | 1665 | if (IkeSaSession->IkeKeys->SkAiKey == NULL) {\r |
1666 | Status = EFI_OUT_OF_RESOURCES;\r | |
1667 | goto Exit;\r | |
1668 | }\r | |
9166f840 | 1669 | IkeSaSession->IkeKeys->SkAiKeySize = IntegrityAlgKeyLen;\r |
1670 | CopyMem (IkeSaSession->IkeKeys->SkAiKey, OutputKey + PrfAlgKeyLen, IntegrityAlgKeyLen);\r | |
1671 | \r | |
1672 | IPSEC_DUMP_BUF (">>> SK_Ai Key", IkeSaSession->IkeKeys->SkAiKey, IkeSaSession->IkeKeys->SkAiKeySize);\r | |
1673 | \r | |
1674 | //\r | |
1675 | // Third, Sk_ar\r | |
1676 | //\r | |
1677 | IkeSaSession->IkeKeys->SkArKey = AllocateZeroPool (IntegrityAlgKeyLen);\r | |
02a758cb | 1678 | if (IkeSaSession->IkeKeys->SkArKey == NULL) {\r |
1679 | Status = EFI_OUT_OF_RESOURCES;\r | |
1680 | goto Exit;\r | |
1681 | }\r | |
9166f840 | 1682 | IkeSaSession->IkeKeys->SkArKeySize = IntegrityAlgKeyLen;\r |
1683 | CopyMem (\r | |
1684 | IkeSaSession->IkeKeys->SkArKey,\r | |
1685 | OutputKey + PrfAlgKeyLen + IntegrityAlgKeyLen,\r | |
1686 | IntegrityAlgKeyLen\r | |
1687 | );\r | |
1688 | \r | |
1689 | IPSEC_DUMP_BUF (">>> SK_Ar Key", IkeSaSession->IkeKeys->SkArKey, IkeSaSession->IkeKeys->SkArKeySize);\r | |
1690 | \r | |
1691 | //\r | |
1692 | // Fourth, Sk_ei\r | |
1693 | //\r | |
1694 | IkeSaSession->IkeKeys->SkEiKey = AllocateZeroPool (EncryptAlgKeyLen);\r | |
02a758cb | 1695 | if (IkeSaSession->IkeKeys->SkEiKey == NULL) {\r |
1696 | Status = EFI_OUT_OF_RESOURCES;\r | |
1697 | goto Exit;\r | |
1698 | }\r | |
9166f840 | 1699 | IkeSaSession->IkeKeys->SkEiKeySize = EncryptAlgKeyLen;\r |
1700 | \r | |
1701 | CopyMem (\r | |
1702 | IkeSaSession->IkeKeys->SkEiKey,\r | |
1703 | OutputKey + AuthAlgKeyLen + 2 * IntegrityAlgKeyLen,\r | |
1704 | EncryptAlgKeyLen\r | |
1705 | );\r | |
1706 | IPSEC_DUMP_BUF (\r | |
1707 | ">>> SK_Ei Key", \r | |
1708 | OutputKey + AuthAlgKeyLen + 2 * IntegrityAlgKeyLen,\r | |
1709 | EncryptAlgKeyLen\r | |
1710 | );\r | |
1711 | \r | |
1712 | //\r | |
1713 | // Fifth, Sk_er\r | |
1714 | //\r | |
1715 | IkeSaSession->IkeKeys->SkErKey = AllocateZeroPool (EncryptAlgKeyLen);\r | |
02a758cb | 1716 | if (IkeSaSession->IkeKeys->SkErKey == NULL) {\r |
1717 | Status = EFI_OUT_OF_RESOURCES;\r | |
1718 | goto Exit;\r | |
1719 | }\r | |
9166f840 | 1720 | IkeSaSession->IkeKeys->SkErKeySize = EncryptAlgKeyLen;\r |
1721 | \r | |
1722 | CopyMem (\r | |
1723 | IkeSaSession->IkeKeys->SkErKey,\r | |
1724 | OutputKey + AuthAlgKeyLen + 2 * IntegrityAlgKeyLen + EncryptAlgKeyLen,\r | |
1725 | EncryptAlgKeyLen\r | |
1726 | );\r | |
1727 | IPSEC_DUMP_BUF (\r | |
1728 | ">>> SK_Er Key",\r | |
1729 | OutputKey + AuthAlgKeyLen + 2 * IntegrityAlgKeyLen + EncryptAlgKeyLen,\r | |
1730 | EncryptAlgKeyLen\r | |
1731 | );\r | |
1732 | \r | |
1733 | //\r | |
1734 | // Sixth, Sk_pi\r | |
1735 | //\r | |
1736 | IkeSaSession->IkeKeys->SkPiKey = AllocateZeroPool (AuthAlgKeyLen);\r | |
02a758cb | 1737 | if (IkeSaSession->IkeKeys->SkPiKey == NULL) {\r |
1738 | Status = EFI_OUT_OF_RESOURCES;\r | |
1739 | goto Exit;\r | |
1740 | }\r | |
9166f840 | 1741 | IkeSaSession->IkeKeys->SkPiKeySize = AuthAlgKeyLen;\r |
1742 | \r | |
1743 | CopyMem (\r | |
1744 | IkeSaSession->IkeKeys->SkPiKey,\r | |
1745 | OutputKey + AuthAlgKeyLen + 2 * IntegrityAlgKeyLen + 2 * EncryptAlgKeyLen,\r | |
1746 | AuthAlgKeyLen\r | |
1747 | );\r | |
1748 | IPSEC_DUMP_BUF (\r | |
1749 | ">>> SK_Pi Key",\r | |
1750 | OutputKey + AuthAlgKeyLen + 2 * IntegrityAlgKeyLen + 2 * EncryptAlgKeyLen,\r | |
1751 | AuthAlgKeyLen\r | |
1752 | );\r | |
1753 | \r | |
1754 | //\r | |
1755 | // Seventh, Sk_pr\r | |
1756 | //\r | |
1757 | IkeSaSession->IkeKeys->SkPrKey = AllocateZeroPool (AuthAlgKeyLen);\r | |
02a758cb | 1758 | if (IkeSaSession->IkeKeys->SkPrKey == NULL) {\r |
1759 | Status = EFI_OUT_OF_RESOURCES;\r | |
1760 | goto Exit;\r | |
1761 | }\r | |
9166f840 | 1762 | IkeSaSession->IkeKeys->SkPrKeySize = AuthAlgKeyLen;\r |
1763 | \r | |
1764 | CopyMem (\r | |
1765 | IkeSaSession->IkeKeys->SkPrKey,\r | |
1766 | OutputKey + AuthAlgKeyLen + 2 * IntegrityAlgKeyLen + 2 * EncryptAlgKeyLen + AuthAlgKeyLen,\r | |
1767 | AuthAlgKeyLen\r | |
1768 | ); \r | |
1769 | IPSEC_DUMP_BUF (\r | |
1770 | ">>> SK_Pr Key",\r | |
1771 | OutputKey + AuthAlgKeyLen + 2 * IntegrityAlgKeyLen + 2 * EncryptAlgKeyLen + AuthAlgKeyLen,\r | |
1772 | AuthAlgKeyLen\r | |
1773 | );\r | |
1774 | \r | |
1775 | \r | |
1776 | Exit:\r | |
1777 | if (Digest != NULL) {\r | |
1778 | FreePool (Digest);\r | |
1779 | }\r | |
1780 | if (KeyBuffer != NULL) {\r | |
1781 | FreePool (KeyBuffer);\r | |
1782 | }\r | |
1783 | if (OutputKey != NULL) {\r | |
1784 | FreePool (OutputKey);\r | |
1785 | }\r | |
02a758cb | 1786 | \r |
1787 | if (EFI_ERROR(Status)) {\r | |
1788 | if (IkeSaSession->IkeKeys->SkdKey != NULL) {\r | |
1789 | FreePool (IkeSaSession->IkeKeys->SkdKey);\r | |
1790 | }\r | |
1791 | if (IkeSaSession->IkeKeys->SkAiKey != NULL) {\r | |
1792 | FreePool (IkeSaSession->IkeKeys->SkAiKey);\r | |
1793 | }\r | |
1794 | if (IkeSaSession->IkeKeys->SkArKey != NULL) {\r | |
1795 | FreePool (IkeSaSession->IkeKeys->SkArKey);\r | |
1796 | }\r | |
1797 | if (IkeSaSession->IkeKeys->SkEiKey != NULL) {\r | |
1798 | FreePool (IkeSaSession->IkeKeys->SkEiKey);\r | |
1799 | }\r | |
1800 | if (IkeSaSession->IkeKeys->SkErKey != NULL) {\r | |
1801 | FreePool (IkeSaSession->IkeKeys->SkErKey);\r | |
1802 | }\r | |
1803 | if (IkeSaSession->IkeKeys->SkPiKey != NULL) {\r | |
1804 | FreePool (IkeSaSession->IkeKeys->SkPiKey);\r | |
1805 | }\r | |
1806 | if (IkeSaSession->IkeKeys->SkPrKey != NULL) {\r | |
1807 | FreePool (IkeSaSession->IkeKeys->SkPrKey);\r | |
1808 | }\r | |
1809 | }\r | |
1810 | \r | |
9166f840 | 1811 | \r |
1812 | return Status;\r | |
1813 | }\r | |
1814 | \r | |
1815 | /**\r | |
1816 | Generates the Keys for the furthure IPsec Protocol.\r | |
1817 | \r | |
1818 | @param[in] ChildSaSession Pointer to IKE Child SA Session.\r | |
1819 | @param[in] KePayload Pointer to Key payload used to generate the Key.\r | |
1820 | \r | |
1821 | @retval EFI_UNSUPPORTED If one or more Algorithm Id is not supported.\r | |
1822 | @retval EFI_SUCCESS The operation succeeded.\r | |
1823 | \r | |
1824 | **/\r | |
1825 | EFI_STATUS\r | |
1826 | Ikev2GenerateChildSaKeys (\r | |
1827 | IN IKEV2_CHILD_SA_SESSION *ChildSaSession,\r | |
1828 | IN IKE_PAYLOAD *KePayload\r | |
1829 | )\r | |
1830 | {\r | |
1831 | EFI_STATUS Status;\r | |
1832 | IKEV2_SA_PARAMS *SaParams;\r | |
1833 | PRF_DATA_FRAGMENT Fragments[3];\r | |
1834 | UINTN EncryptAlgKeyLen;\r | |
1835 | UINTN IntegrityAlgKeyLen;\r | |
1836 | UINT8* OutputKey;\r | |
1837 | UINTN OutputKeyLength;\r | |
1838 | \r | |
02a758cb | 1839 | Status = EFI_SUCCESS;\r |
1840 | OutputKey = NULL;\r | |
1841 | \r | |
9166f840 | 1842 | if (KePayload != NULL) {\r |
1843 | //\r | |
1844 | // Generate Gxy \r | |
1845 | //\r | |
1846 | Ikev2GenerateSaDhComputeKey (ChildSaSession->DhBuffer, KePayload);\r | |
1847 | Fragments[0].Data = ChildSaSession->DhBuffer->GxyBuffer;\r | |
1848 | Fragments[0].DataSize = ChildSaSession->DhBuffer->GxySize;\r | |
1849 | }\r | |
1850 | \r | |
1851 | Fragments[1].Data = ChildSaSession->NiBlock;\r | |
1852 | Fragments[1].DataSize = ChildSaSession->NiBlkSize;\r | |
1853 | Fragments[2].Data = ChildSaSession->NrBlock;\r | |
1854 | Fragments[2].DataSize = ChildSaSession->NrBlkSize;\r | |
1855 | \r | |
1856 | //\r | |
1857 | // Get the key length of Authenticaion, Encryption, PRF, and Integrity.\r | |
1858 | //\r | |
1859 | SaParams = ChildSaSession->SessionCommon.SaParams;\r | |
1860 | EncryptAlgKeyLen = IpSecGetEncryptKeyLength ((UINT8)SaParams->EncAlgId);\r | |
1861 | IntegrityAlgKeyLen = IpSecGetHmacDigestLength ((UINT8)SaParams->IntegAlgId);\r | |
1862 | OutputKeyLength = 2 * EncryptAlgKeyLen + 2 * IntegrityAlgKeyLen;\r | |
1863 | \r | |
1864 | if ((EncryptAlgKeyLen == 0) || (IntegrityAlgKeyLen == 0)) {\r | |
02a758cb | 1865 | Status = EFI_UNSUPPORTED;\r |
1866 | goto Exit;\r | |
9166f840 | 1867 | }\r |
1868 | \r | |
1869 | //\r | |
1870 | // \r | |
1871 | // If KePayload is not NULL, calculate KEYMAT = prf+(SK_d, g^ir (new) | Ni | Nr ),\r | |
1872 | // otherwise, KEYMAT = prf+(SK_d, Ni | Nr )\r | |
1873 | //\r | |
1874 | OutputKey = AllocateZeroPool (OutputKeyLength);\r | |
02a758cb | 1875 | if (OutputKey == NULL) {\r |
1876 | Status = EFI_OUT_OF_RESOURCES;\r | |
1877 | goto Exit;\r | |
1878 | }\r | |
9166f840 | 1879 | \r |
1880 | //\r | |
1881 | // Derive Key from the SkdKey Buffer.\r | |
1882 | //\r | |
1883 | Status = Ikev2SaGenerateKey (\r | |
1884 | (UINT8)ChildSaSession->IkeSaSession->SessionCommon.SaParams->Prf,\r | |
1885 | ChildSaSession->IkeSaSession->IkeKeys->SkdKey,\r | |
1886 | ChildSaSession->IkeSaSession->IkeKeys->SkdKeySize,\r | |
1887 | OutputKey,\r | |
1888 | OutputKeyLength,\r | |
1889 | KePayload == NULL ? &Fragments[1] : Fragments,\r | |
1890 | KePayload == NULL ? 2 : 3\r | |
1891 | );\r | |
1892 | \r | |
1893 | if (EFI_ERROR (Status)) {\r | |
02a758cb | 1894 | goto Exit; \r |
9166f840 | 1895 | }\r |
1896 | \r | |
1897 | //\r | |
1898 | // Copy KEYMATE (SK_ENCRYPT_i | SK_ENCRYPT_r | SK_INTEG_i | SK_INTEG_r) to\r | |
1899 | // ChildKeyMates.\r | |
1900 | // \r | |
1901 | if (!ChildSaSession->SessionCommon.IsInitiator) {\r | |
1902 | \r | |
1903 | // \r | |
1904 | // Initiator Encryption Key\r | |
1905 | //\r | |
1906 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncAlgoId = (UINT8)SaParams->EncAlgId;\r | |
1907 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKeyLength = EncryptAlgKeyLen;\r | |
1908 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey = AllocateZeroPool (EncryptAlgKeyLen);\r | |
02a758cb | 1909 | if (ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey == NULL) {\r |
1910 | Status = EFI_OUT_OF_RESOURCES;\r | |
1911 | goto Exit;\r | |
1912 | }\r | |
9166f840 | 1913 | \r |
1914 | CopyMem (\r | |
1915 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey,\r | |
1916 | OutputKey,\r | |
1917 | EncryptAlgKeyLen\r | |
1918 | );\r | |
1919 | \r | |
1920 | //\r | |
1921 | // Initiator Authentication Key\r | |
1922 | //\r | |
1923 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthAlgoId = (UINT8)SaParams->IntegAlgId;\r | |
1924 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKeyLength = IntegrityAlgKeyLen;\r | |
1925 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey = AllocateZeroPool (IntegrityAlgKeyLen);\r | |
02a758cb | 1926 | if (ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey == NULL) {\r |
1927 | Status = EFI_OUT_OF_RESOURCES;\r | |
1928 | goto Exit;\r | |
1929 | } \r | |
1930 | \r | |
9166f840 | 1931 | CopyMem (\r |
1932 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey,\r | |
1933 | OutputKey + EncryptAlgKeyLen,\r | |
1934 | IntegrityAlgKeyLen\r | |
1935 | );\r | |
1936 | \r | |
1937 | //\r | |
1938 | // Responder Encrypt Key\r | |
1939 | //\r | |
1940 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncAlgoId = (UINT8)SaParams->EncAlgId;\r | |
1941 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKeyLength = EncryptAlgKeyLen;\r | |
1942 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey = AllocateZeroPool (EncryptAlgKeyLen);\r | |
02a758cb | 1943 | if (ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey == NULL) {\r |
1944 | Status = EFI_OUT_OF_RESOURCES;\r | |
1945 | goto Exit;\r | |
1946 | } \r | |
1947 | \r | |
9166f840 | 1948 | CopyMem (\r |
1949 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey,\r | |
1950 | OutputKey + EncryptAlgKeyLen + IntegrityAlgKeyLen,\r | |
1951 | EncryptAlgKeyLen\r | |
1952 | );\r | |
1953 | \r | |
1954 | //\r | |
1955 | // Responder Authentication Key\r | |
1956 | //\r | |
1957 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthAlgoId = (UINT8)SaParams->IntegAlgId;\r | |
1958 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKeyLength = IntegrityAlgKeyLen;\r | |
1959 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey = AllocateZeroPool (IntegrityAlgKeyLen);\r | |
02a758cb | 1960 | if (ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey == NULL) {\r |
1961 | Status = EFI_OUT_OF_RESOURCES;\r | |
1962 | goto Exit;\r | |
1963 | } \r | |
9166f840 | 1964 | \r |
1965 | CopyMem (\r | |
1966 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey,\r | |
1967 | OutputKey + 2 * EncryptAlgKeyLen + IntegrityAlgKeyLen,\r | |
1968 | IntegrityAlgKeyLen\r | |
1969 | );\r | |
1970 | } else {\r | |
1971 | //\r | |
1972 | // Initiator Encryption Key\r | |
1973 | //\r | |
1974 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncAlgoId = (UINT8)SaParams->EncAlgId;\r | |
1975 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKeyLength = EncryptAlgKeyLen;\r | |
1976 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey = AllocateZeroPool (EncryptAlgKeyLen);\r | |
02a758cb | 1977 | if (ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey == NULL) {\r |
1978 | Status = EFI_OUT_OF_RESOURCES;\r | |
1979 | goto Exit;\r | |
1980 | } \r | |
1981 | \r | |
9166f840 | 1982 | CopyMem (\r |
1983 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey,\r | |
1984 | OutputKey,\r | |
1985 | EncryptAlgKeyLen\r | |
1986 | );\r | |
1987 | \r | |
1988 | //\r | |
1989 | // Initiator Authentication Key\r | |
1990 | //\r | |
1991 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthAlgoId = (UINT8)SaParams->IntegAlgId;\r | |
1992 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKeyLength = IntegrityAlgKeyLen;\r | |
1993 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey = AllocateZeroPool (IntegrityAlgKeyLen);\r | |
02a758cb | 1994 | if (ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey == NULL) {\r |
1995 | Status = EFI_OUT_OF_RESOURCES;\r | |
1996 | goto Exit;\r | |
1997 | } \r | |
1998 | \r | |
9166f840 | 1999 | CopyMem (\r |
2000 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey,\r | |
2001 | OutputKey + EncryptAlgKeyLen,\r | |
2002 | IntegrityAlgKeyLen\r | |
2003 | );\r | |
2004 | \r | |
2005 | //\r | |
2006 | // Responder Encryption Key\r | |
2007 | //\r | |
2008 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncAlgoId = (UINT8)SaParams->EncAlgId;\r | |
2009 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKeyLength = EncryptAlgKeyLen;\r | |
2010 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey = AllocateZeroPool (EncryptAlgKeyLen);\r | |
02a758cb | 2011 | if (ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey == NULL) {\r |
2012 | Status = EFI_OUT_OF_RESOURCES;\r | |
2013 | goto Exit;\r | |
2014 | } \r | |
2015 | \r | |
9166f840 | 2016 | CopyMem (\r |
2017 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey,\r | |
2018 | OutputKey + EncryptAlgKeyLen + IntegrityAlgKeyLen,\r | |
2019 | EncryptAlgKeyLen\r | |
2020 | );\r | |
2021 | \r | |
2022 | //\r | |
2023 | // Responder Authentication Key\r | |
2024 | //\r | |
2025 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthAlgoId = (UINT8)SaParams->IntegAlgId;\r | |
2026 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKeyLength = IntegrityAlgKeyLen;\r | |
2027 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey = AllocateZeroPool (IntegrityAlgKeyLen);\r | |
02a758cb | 2028 | if (ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey == NULL) {\r |
2029 | Status = EFI_OUT_OF_RESOURCES;\r | |
2030 | goto Exit;\r | |
2031 | } \r | |
2032 | \r | |
9166f840 | 2033 | CopyMem (\r |
2034 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey,\r | |
2035 | OutputKey + 2 * EncryptAlgKeyLen + IntegrityAlgKeyLen,\r | |
2036 | IntegrityAlgKeyLen\r | |
2037 | );\r | |
2038 | }\r | |
2039 | \r | |
2040 | IPSEC_DUMP_BUF (\r | |
2041 | " >>> Local Encryption Key",\r | |
2042 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey,\r | |
2043 | EncryptAlgKeyLen\r | |
2044 | );\r | |
2045 | IPSEC_DUMP_BUF (\r | |
2046 | " >>> Remote Encryption Key",\r | |
2047 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey,\r | |
2048 | EncryptAlgKeyLen\r | |
2049 | );\r | |
2050 | IPSEC_DUMP_BUF (\r | |
2051 | " >>> Local Authentication Key",\r | |
2052 | ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey,\r | |
2053 | IntegrityAlgKeyLen\r | |
2054 | );\r | |
2055 | IPSEC_DUMP_BUF (\r | |
2056 | " >>> Remote Authentication Key",\r | |
2057 | ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey,\r | |
2058 | IntegrityAlgKeyLen\r | |
2059 | );\r | |
2060 | \r | |
02a758cb | 2061 | \r |
2062 | \r | |
2063 | Exit:\r | |
2064 | if (EFI_ERROR (Status)) {\r | |
2065 | if (ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey != NULL) {\r | |
2066 | FreePool (ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.EncKey);\r | |
2067 | }\r | |
2068 | if (ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey != NULL) {\r | |
2069 | FreePool (ChildSaSession->ChildKeymats.LocalPeerInfo.EspAlgoInfo.AuthKey);\r | |
2070 | }\r | |
2071 | if (ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey != NULL) {\r | |
2072 | FreePool (ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.EncKey);\r | |
2073 | }\r | |
2074 | if (ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey != NULL) {\r | |
2075 | FreePool (ChildSaSession->ChildKeymats.RemotePeerInfo.EspAlgoInfo.AuthKey);\r | |
2076 | }\r | |
2077 | }\r | |
2078 | \r | |
2079 | if (OutputKey != NULL) {\r | |
2080 | FreePool (OutputKey);\r | |
2081 | }\r | |
9166f840 | 2082 | \r |
2083 | return EFI_SUCCESS;\r | |
2084 | }\r | |
2085 | \r | |
2086 | GLOBAL_REMOVE_IF_UNREFERENCED IKEV2_PACKET_HANDLER mIkev2Initial[][2] = {\r | |
2087 | { //PSK\r | |
2088 | { // IKEV2_INIT\r | |
2089 | Ikev2InitPskParser,\r | |
2090 | Ikev2InitPskGenerator\r | |
2091 | },\r | |
2092 | { //IKEV2_AUTH\r | |
2093 | Ikev2AuthPskParser,\r | |
2094 | Ikev2AuthPskGenerator\r | |
2095 | }\r | |
2096 | },\r | |
2097 | { // CERT\r | |
2098 | { // IKEV2_INIT\r | |
2099 | Ikev2InitCertParser,\r | |
2100 | Ikev2InitCertGenerator\r | |
2101 | },\r | |
2102 | { // IKEV2_AUTH\r | |
2103 | Ikev2AuthCertParser,\r | |
2104 | Ikev2AuthCertGenerator\r | |
2105 | },\r | |
2106 | },\r | |
2107 | };\r |