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1 /** @file
2   Definitions related to IPSEC_CONFIG_PROTOCOL implementations.
3 
4   Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
5 
6   This program and the accompanying materials
7   are licensed and made available under the terms and conditions of the BSD License
8   which accompanies this distribution.  The full text of the license may be found at
9   http://opensource.org/licenses/bsd-license.php.
10 
11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13 
14 **/
15 
16 #ifndef _IPSEC_CONFIG_IMPL_H_
17 #define _IPSEC_CONFIG_IMPL_H_
18 
19 #include <Protocol/IpSec.h>
20 #include <Protocol/IpSecConfig.h>
21 
22 #include <Library/BaseLib.h>
23 #include <Library/BaseMemoryLib.h>
24 #include <Library/PrintLib.h>
25 #include <Library/MemoryAllocationLib.h>
26 #include <Library/UefiRuntimeServicesTableLib.h>
27 #include <Library/UefiBootServicesTableLib.h>
28 #include <Library/DebugLib.h>
29 
30 #include "IpSecImpl.h"
31 
32 #define EFI_IPSEC_ANY_PROTOCOL    0xFFFF
33 #define EFI_IPSEC_ANY_PORT        0
34 
35 #define IPSEC_VAR_ITEM_HEADER_LOGO_BIT     0x80
36 #define IPSEC_VAR_ITEM_HEADER_CONTENT_BIT  0x7F
37 
38 #define IPSECCONFIG_VARIABLE_NAME       L"IpSecConfig"
39 #define IPSECCONFIG_STATUS_NAME         L"IpSecStatus"
40 
41 #define SIZE_OF_SPD_SELECTOR(x) (UINTN) (sizeof (EFI_IPSEC_SPD_SELECTOR) \
42        + sizeof (EFI_IP_ADDRESS_INFO) * ((x)->LocalAddressCount + (x)->RemoteAddressCount))
43 
44 #define FIX_REF_BUF_ADDR(addr, base)    addr = (VOID *) ((UINTN) (addr) - (UINTN) (base))
45 #define UNFIX_REF_BUF_ADDR(addr, base)  addr = (VOID *) ((UINTN) (addr) + (UINTN) (base))
46 
47 //
48 // The data structure used to store the genernall information of IPsec configuration.
49 //
50 typedef struct {
51   UINT32 VariableCount;      // the total number of the IPsecConfig variables.
52   UINT32 VariableSize;       // The total size of all IpsecConfig variables.
53   UINT32 SingleVariableSize; // The max size of single variable
54 } IP_SEC_VARIABLE_INFO;
55 
56 typedef struct {
57   EFI_IPSEC_CONFIG_SELECTOR *Selector;
58   VOID                      *Data;
59   LIST_ENTRY                List;
60 } IPSEC_COMMON_POLICY_ENTRY;
61 
62 typedef struct {
63   UINT8 *Ptr;
64   UINTN Size;
65   UINTN Capacity;
66 } IPSEC_VARIABLE_BUFFER;
67 
68 #pragma pack(1)
69 typedef struct {
70   UINT8   Type;
71   UINT16  Size;
72 } IPSEC_VAR_ITEM_HEADER;
73 #pragma pack()
74 
75 /**
76   The prototype of Copy Source Selector to the Destination Selector.
77 
78   @param[in, out] DstSel             Pointer of Destination Selector. It would be
79                                      SPD Selector, or SAD Selector or PAD Selector.
80   @param[in]      SrcSel             Pointer of Source  Selector. It would be
81                                      SPD Selector, or SAD Selector or PAD Selector.
82   @param[in, out] Size               The size of the Destination Selector. If it
83                                      is not NULL and its value is less than the size of
84                                      Source Selector, the value of Source Selector's
85                                      size will be passed to the caller by this parameter.
86 
87   @retval EFI_INVALID_PARAMETER  If the Destination or Source Selector is NULL.
88   @retval EFI_BUFFER_TOO_SMALL   If the input Size is less than size of Source Selector.
89   @retval EFI_SUCCESS            Copy Source Selector to the Destination
90                                  Selector successfully.
91 
92 **/
93 typedef
94 EFI_STATUS
95 (*IPSEC_DUPLICATE_SELECTOR) (
96   IN OUT EFI_IPSEC_CONFIG_SELECTOR    *DstSel,
97   IN     EFI_IPSEC_CONFIG_SELECTOR    *SrcSel,
98   IN OUT UINTN                        *Size
99   );
100 
101 /**
102   It is prototype of compare two Selectors. The Selector would be SPD Selector,
103   or SAD Selector, or PAD selector.
104 
105   @param[in]   Selector1           Pointer of the first  Selector.
106   @param[in]   Selector2           Pointer of the second Selector.
107 
108   @retval  TRUE    These two Selectors have the same value in certain fields.
109   @retval  FALSE   Not all fields have the same value in these two Selectors.
110 
111 **/
112 typedef
113 BOOLEAN
114 (*IPSEC_COMPARE_SELECTOR) (
115   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector1,
116   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector2
117   );
118 
119 /**
120   The prototype of a function to check if the Selector is Zero by its certain fields.
121 
122   @param[in]  Selector      Pointer of the Selector.
123 
124   @retval     TRUE          If the Selector is Zero.
125   @retval     FALSE         If the Selector is not Zero.
126 
127 **/
128 typedef
129 BOOLEAN
130 (*IPSEC_IS_ZERO_SELECTOR) (
131   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector
132   );
133 
134 /**
135   The prototype of a function to fix the value of particular members of the Selector.
136 
137   @param[in]  Selector              Pointer of Selector.
138   @param[in]  Data                  Pointer of Data.
139 
140 **/
141 typedef
142 VOID
143 (*IPSEC_FIX_POLICY_ENTRY) (
144   IN EFI_IPSEC_CONFIG_SELECTOR           *Selector,
145   IN VOID                                *Data
146   );
147 
148 /**
149   It is prototype function to define a routine function by the caller of IpSecVisitConfigData().
150 
151   @param[in]      Type              A specified IPSEC_CONFIG_DATA_TYPE.
152   @param[in]      Selector          Points to EFI_IPSEC_CONFIG_SELECTOR to be copied
153                                     to the buffer.
154   @param[in]      Data              Points to data to be copied to the buffer. The
155                                     Data type is related to the Type.
156   @param[in]      SelectorSize      The size of the Selector.
157   @param[in]      DataSize          The size of the Data.
158   @param[in, out] Buffer            The buffer to store the Selector and Data.
159 
160   @retval EFI_SUCCESS            Copied the Selector and Data to a buffer successfully.
161   @retval EFI_OUT_OF_RESOURCES   The required system resource could not be allocated.
162 
163 **/
164 typedef
165 EFI_STATUS
166 (*IPSEC_COPY_POLICY_ENTRY) (
167   IN     EFI_IPSEC_CONFIG_DATA_TYPE          Type,
168   IN     EFI_IPSEC_CONFIG_SELECTOR           *Selector,
169   IN     VOID                                *Data,
170   IN     UINTN                               SelectorSize,
171   IN     UINTN                               DataSize,
172   IN OUT VOID                                *Context
173   );
174 
175 /**
176   Set the security policy information for the EFI IPsec driver.
177 
178   The IPsec configuration data has a unique selector/identifier separately to
179   identify a data entry.
180 
181   @param[in]  Selector           Pointer to an entry selector on operated
182                                  configuration data specified by DataType.
183                                  A NULL Selector causes the entire specified-type
184                                  configuration information to be flushed.
185   @param[in]  Data               The data buffer to be set.
186   @param[in]  Context            Pointer to one entry selector that describes
187                                  the expected position the new data entry will
188                                  be added. If Context is NULL, the new entry will
189                                  be appended to the end of the database.
190 
191   @retval EFI_INVALID_PARAMETER Certain Parameters are not correct. The Parameter
192                                 requiring a check depends on the Selector type.
193   @retval EFI_OUT_OF_RESOURCED  The required system resource could not be allocated.
194   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
195 
196 **/
197 typedef
198 EFI_STATUS
199 (*IPSEC_SET_POLICY_ENTRY) (
200   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector,
201   IN VOID                             *Data,
202   IN VOID                             *Context OPTIONAL
203   );
204 
205 /**
206   A prototype function definition to lookup the data entry from IPsec. Return the configuration
207   value of the specified Entry.
208 
209   @param[in]      Selector      Pointer to an entry selector that is an identifier
210                                 of the  entry.
211   @param[in, out] DataSize      On output, the size of data returned in Data.
212   @param[out]     Data          The buffer to return the contents of the IPsec
213                                 configuration data. The type of the data buffer
214                                 is associated with the DataType.
215 
216   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
217   @retval EFI_INVALID_PARAMETER Data is NULL and *DataSize is not zero.
218   @retval EFI_NOT_FOUND         The configuration data specified by Selector is not found.
219   @retval EFI_BUFFER_TOO_SMALL  The DataSize is too small for the result. DataSize has been
220                                 updated with the size needed to complete the request.
221 
222 **/
223 typedef
224 EFI_STATUS
225 (*IPSEC_GET_POLICY_ENTRY) (
226   IN     EFI_IPSEC_CONFIG_SELECTOR    *Selector,
227   IN OUT UINTN                        *DataSize,
228   IN     VOID                         *Data
229   );
230 
231 /**
232   Compare two SPD Selectors.
233 
234   Compare two SPD Selector by the fields of LocalAddressCount/RemoteAddressCount/
235   NextLayerProtocol/LocalPort/LocalPortRange/RemotePort/RemotePortRange and the
236   Local Addresses and remote Addresses.
237 
238   @param[in]   Selector1           Pointer of the first SPD Selector.
239   @param[in]   Selector2           Pointer of the second SPD Selector.
240 
241   @retval  TRUE    These two Selectors have the same value in above fields.
242   @retval  FALSE   Not all of the above fields have the same value in these two Selectors.
243 
244 **/
245 BOOLEAN
246 CompareSpdSelector (
247   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector1,
248   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector2
249   );
250 
251 
252 /**
253   Visit all IPsec Configurations of specified Type and call the caller defined
254   interface.
255 
256   @param[in]  DataType          The specified IPsec Config Data Type.
257   @param[in]  Routine           The function caller defined.
258   @param[in]  Context           The data passed to the Routine.
259 
260   @retval EFI_OUT_OF_RESOURCES   The required system resource could not be allocated.
261   @retval EFI_SUCCESS            This function complete successfully.
262 
263 **/
264 EFI_STATUS
265 IpSecVisitConfigData (
266   IN EFI_IPSEC_CONFIG_DATA_TYPE       DataType,
267   IN IPSEC_COPY_POLICY_ENTRY          Routine,
268   IN VOID                             *Context
269   );
270 
271 
272 /**
273   This function is the subfunction of the EFIIpSecConfigSetData.
274 
275   This function call IpSecSetVaraible to set the IPsec Configuration into the firmware.
276 
277   @retval EFI_OUT_OF_RESOURCES   The required system resource could not be allocated.
278   @retval EFI_SUCCESS            Saved the configration successfully.
279   @retval Others                 Other errors were found while obtaining the variable.
280 
281 **/
282 EFI_STATUS
283 IpSecConfigSave (
284   VOID
285   );
286 
287 /**
288   Initialize IPsecConfig protocol
289 
290   @param[in, out]  Private   Pointer to IPSEC_PRIVATE_DATA. After this function finish,
291                              the pointer of IPsecConfig Protocol implementation will copy
292                              into its IPsecConfig member.
293 
294   @retval     EFI_SUCCESS    Initialized the IPsecConfig Protocol successfully.
295   @retval     Others         Initializing the IPsecConfig Protocol failed.
296 
297 **/
298 EFI_STATUS
299 IpSecConfigInitialize (
300   IN OUT IPSEC_PRIVATE_DATA               *Private
301   );
302 
303 /**
304   Calculate the entire size of EFI_IPSEC_SPD_DATA, which includes the buffer size pointed
305   by the pointer members.
306 
307   @param[in]  SpdData             Pointer to a specified EFI_IPSEC_SPD_DATA.
308 
309   @return The entire size of the specified EFI_IPSEC_SPD_DATA.
310 
311 **/
312 UINTN
313 IpSecGetSizeOfEfiSpdData (
314   IN EFI_IPSEC_SPD_DATA               *SpdData
315   );
316 
317 /**
318   Calculate the a entire size of IPSEC_SPD_DATA, which includes the buffer size pointed
319   by the pointer members and the buffer size used by Sa List.
320 
321   @param[in]  SpdData       Pointer to the specified IPSEC_SPD_DATA.
322 
323   @return The entire size of IPSEC_SPD_DATA.
324 
325 **/
326 UINTN
327 IpSecGetSizeOfSpdData (
328   IN IPSEC_SPD_DATA                   *SpdData
329   );
330 
331 /**
332   Copy Source Process Policy to the Destination Process Policy.
333 
334   @param[in]  Dst                  Pointer to the Source Process Policy.
335   @param[in]  Src                  Pointer to the Destination Process Policy.
336 
337 **/
338 VOID
339 IpSecDuplicateProcessPolicy (
340   IN EFI_IPSEC_PROCESS_POLICY            *Dst,
341   IN EFI_IPSEC_PROCESS_POLICY            *Src
342   );
343 
344 /**
345   Find if the two SPD Selectors has subordinative.
346 
347   Compare two SPD Selector by the fields of LocalAddressCount/RemoteAddressCount/
348   NextLayerProtocol/LocalPort/LocalPortRange/RemotePort/RemotePortRange and the
349   Local Addresses and remote Addresses.
350 
351   @param[in]   Selector1           Pointer of first SPD Selector.
352   @param[in]   Selector2           Pointer of second SPD Selector.
353 
354   @retval  TRUE    The first SPD Selector is subordinate Selector of second SPD Selector.
355   @retval  FALSE   The first SPD Selector is not subordinate Selector of second
356                    SPD Selector.
357 
358 **/
359 BOOLEAN
360 IsSubSpdSelector (
361   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector1,
362   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector2
363   );
364 
365 /**
366   Compare two SA IDs.
367 
368   @param[in]   Selector1           Pointer of the first SA ID.
369   @param[in]   Selector2           Pointer of the second SA ID.
370 
371   @retval  TRUE    This two Selectors have the same SA ID.
372   @retval  FALSE   This two Selecotrs don't have the same SA ID.
373 
374 **/
375 BOOLEAN
376 CompareSaId (
377   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector1,
378   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector2
379   );
380 
381 /**
382   Compare two PAD IDs.
383 
384   @param[in]   Selector1           Pointer of the first PAD ID.
385   @param[in]   Selector2           Pointer of the second PAD ID.
386 
387   @retval  TRUE    This two Selectors have the same PAD ID.
388   @retval  FALSE   This two Selecotrs don't have the same PAD ID.
389 
390 **/
391 BOOLEAN
392 ComparePadId (
393   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector1,
394   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector2
395   );
396 
397 /**
398   Check if the SPD Selector is Zero by its LocalAddressCount and RemoteAddressCount
399   fields.
400 
401   @param[in]  Selector      Pointer of the SPD Selector.
402 
403   @retval     TRUE          If the SPD Selector is Zero.
404   @retval     FALSE         If the SPD Selector is not Zero.
405 
406 **/
407 BOOLEAN
408 IsZeroSpdSelector (
409   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector
410   );
411 
412 /**
413   Check if the SA ID is Zero by its DestAddress.
414 
415   @param[in]  Selector      Pointer of the SA ID.
416 
417   @retval     TRUE          If the SA ID is Zero.
418   @retval     FALSE         If the SA ID is not Zero.
419 
420 **/
421 BOOLEAN
422 IsZeroSaId (
423   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector
424   );
425 
426 /**
427   Check if the PAD ID is Zero.
428 
429   @param[in]  Selector      Pointer of the PAD ID.
430 
431   @retval     TRUE          If the PAD ID is Zero.
432   @retval     FALSE         If the PAD ID is not Zero.
433 
434 **/
435 BOOLEAN
436 IsZeroPadId (
437   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector
438   );
439 
440 /**
441   Copy Source SPD Selector to the Destination SPD Selector.
442 
443   @param[in, out] DstSel             Pointer of Destination SPD Selector.
444   @param[in]      SrcSel             Pointer of Source SPD Selector.
445   @param[in, out] Size               The size of the Destination SPD Selector. If
446                                      it is not NULL and its value is less than the
447                                      size of Source SPD Selector, the value of
448                                      Source SPD Selector's size will be passed to
449                                      the caller by this parameter.
450 
451   @retval EFI_INVALID_PARAMETER  If the Destination or Source SPD Selector is NULL.
452   @retval EFI_BUFFER_TOO_SMALL   If the input Size is less than size of Source SPD Selector.
453   @retval EFI_SUCCESS            Copy Source SPD Selector to the Destination SPD
454                                  Selector successfully.
455 
456 **/
457 EFI_STATUS
458 DuplicateSpdSelector (
459   IN OUT EFI_IPSEC_CONFIG_SELECTOR    *DstSel,
460   IN     EFI_IPSEC_CONFIG_SELECTOR    *SrcSel,
461   IN OUT UINTN                        *Size
462   );
463 
464 /**
465   Copy Source SA ID to the Destination SA ID.
466 
467   @param[in, out] DstSel             Pointer of the Destination SA ID.
468   @param[in]      SrcSel             Pointer of the Source SA ID.
469   @param[in, out] Size               The size of the Destination SA ID. If it
470                                      not NULL, and its value is less than the size of
471                                      Source SA ID, the value of Source SA ID's size
472                                      will be passed to the caller by this parameter.
473 
474   @retval EFI_INVALID_PARAMETER  If the Destination or Source SA ID is NULL.
475   @retval EFI_BUFFER_TOO_SMALL   If the input Size less than size of source SA ID.
476   @retval EFI_SUCCESS            Copied Source SA ID to the Destination SA ID successfully.
477 
478 **/
479 EFI_STATUS
480 DuplicateSaId (
481   IN OUT EFI_IPSEC_CONFIG_SELECTOR    *DstSel,
482   IN     EFI_IPSEC_CONFIG_SELECTOR    *SrcSel,
483   IN OUT UINTN                        *Size
484   );
485 
486 /**
487   Copy Source PAD ID to the Destination PAD ID.
488 
489   @param[in, out] DstSel             Pointer of Destination PAD ID.
490   @param[in]      SrcSel             Pointer of Source PAD ID.
491   @param[in, out] Size               The size of the Destination PAD ID. If it
492                                      not NULL, and its value less than the size of
493                                      Source PAD ID, the value of Source PAD ID's size
494                                      will be passed to the caller by this parameter.
495 
496   @retval EFI_INVALID_PARAMETER  If the Destination or Source PAD ID is NULL.
497   @retval EFI_BUFFER_TOO_SMALL   If the input Size less than size of source PAD ID.
498   @retval EFI_SUCCESS            Copied Source PAD ID to the Destination PAD ID successfully.
499 
500 **/
501 EFI_STATUS
502 DuplicatePadId (
503   IN OUT EFI_IPSEC_CONFIG_SELECTOR    *DstSel,
504   IN     EFI_IPSEC_CONFIG_SELECTOR    *SrcSel,
505   IN OUT UINTN                        *Size
506   );
507 
508 /**
509   Fix the value of some members of the  SPD Selector.
510 
511   This function is called by IpSecCopyPolicyEntry(), which copies the Policy
512   Entry into the Variable. Since some members in SPD Selector are pointers,
513   a physical address to relative address conversion is required before copying
514   this SPD entry into the variable.
515 
516   @param[in]       Selector              Pointer of SPD Selector.
517   @param[in, out]  Data                  Pointer of SPD Data.
518 
519 **/
520 VOID
521 FixSpdEntry (
522   IN     EFI_IPSEC_SPD_SELECTOR            *Selector,
523   IN OUT EFI_IPSEC_SPD_DATA                *Data
524   );
525 
526 /**
527   Fix the value of some members of SA ID.
528 
529   This function is called by IpSecCopyPolicyEntry(), which copies the Policy
530   Entry into the Variable. Since some members in SA ID are pointers,
531   a physical address to relative address conversion is required before copying
532   this SAD into the variable.
533 
534   @param[in]       SaId              Pointer of SA ID.
535   @param[in, out]  Data              Pointer of SA Data.
536 
537 **/
538 VOID
539 FixSadEntry (
540   IN     EFI_IPSEC_SA_ID                  *SaId,
541   IN OUT EFI_IPSEC_SA_DATA2                *Data
542   );
543 
544 /**
545   Fix the value of some members of PAD ID.
546 
547   This function is called by IpSecCopyPolicyEntry(), which copy the Policy
548   Entry into the Variable. Since some members in PAD ID are pointers,
549   a physical address to relative address conversion is required before copying
550   this PAD into the variable.
551 
552   @param[in]       PadId              Pointer of PAD ID.
553   @param[in, out]  Data               Pointer of PAD Data.
554 
555 **/
556 VOID
557 FixPadEntry (
558   IN     EFI_IPSEC_PAD_ID                  *PadId,
559   IN OUT EFI_IPSEC_PAD_DATA                *Data
560   );
561 
562 /**
563   Recover the value of some members of SPD Selector.
564 
565   This function is corresponding to FixSpdEntry(). It recovers the value of members
566   of SPD Selector which fix by the FixSpdEntry().
567 
568   @param[in, out]  Selector              Pointer of SPD Selector.
569   @param[in, out]  Data                  Pointer of SPD Data.
570 
571 **/
572 VOID
573 UnfixSpdEntry (
574   IN OUT EFI_IPSEC_SPD_SELECTOR           *Selector,
575   IN OUT EFI_IPSEC_SPD_DATA               *Data
576   );
577 
578 
579 /**
580   Recover the value of some members of SA ID.
581 
582   This function is corresponding to FixSadEntry(). It recovers the value of members
583   of SAD ID which fix by the FixSadEntry().
584 
585   @param[in, out]       SaId              Pointer of SAD ID
586   @param[in, out]  Data              Pointer of SAD Data.
587 
588 **/
589 VOID
590 UnfixSadEntry (
591   IN OUT EFI_IPSEC_SA_ID                     *SaId,
592   IN OUT EFI_IPSEC_SA_DATA2                   *Data
593   );
594 
595 /**
596   Recover the value of some members of PAD ID.
597 
598   This function is corresponding to FixPadEntry(). It recovers the value of members
599   of PAD ID which fix by the FixPadEntry().
600 
601   @param[in]       PadId              Pointer of PAD ID
602   @param[in, out]  Data               Pointer of PAD Data.
603 
604 **/
605 VOID
606 UnfixPadEntry (
607   IN     EFI_IPSEC_PAD_ID                 *PadId,
608   IN OUT EFI_IPSEC_PAD_DATA               *Data
609   );
610 
611 /**
612   Set the security policy information for the EFI IPsec driver.
613 
614   The IPsec configuration data has a unique selector/identifier separately to
615   identify a data entry.
616 
617   @param[in]  Selector           Pointer to an entry selector on operated
618                                  configuration data specified by DataType.
619                                  A NULL Selector causes the entire specified-type
620                                  configuration information to be flushed.
621   @param[in]  Data               The data buffer to be set. The structure
622                                  of the data buffer should be EFI_IPSEC_SPD_DATA.
623   @param[in]  Context            Pointer to one entry selector that describes
624                                  the expected position the new data entry will
625                                  be added. If Context is NULL,the new entry will
626                                  be appended the end of database.
627 
628   @retval EFI_INVALID_PARAMETER  One or more of the following are TRUE:
629                                    - Selector is not NULL and its LocalAddress
630                                      is NULL or its RemoteAddress is NULL.
631                                    - Data is not NULL, its Action is Protected,
632                                      and its policy is NULL.
633                                    - Data is not NULL and its Action is not protected
634                                      and its policy is not NULL.
635                                    - The Action of Data is Protected, its policy
636                                      mode is Tunnel, and its tunnel option is NULL.
637                                    - The Action of Data is protected, its policy
638                                      mode is not Tunnel, and it tunnel option is not NULL.
639   @retval EFI_OUT_OF_RESOURCED  The required system resource could not be allocated.
640   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
641 
642 **/
643 EFI_STATUS
644 SetSpdEntry (
645   IN EFI_IPSEC_CONFIG_SELECTOR       *Selector,
646   IN VOID                            *Data,
647   IN VOID                            *Context OPTIONAL
648   );
649 
650 /**
651   Set the security association information for the EFI IPsec driver.
652 
653   The IPsec configuration data has a unique selector/identifier separately to
654   identify a data entry.
655 
656   @param[in]  Selector           Pointer to an entry selector on operated
657                                  configuration data specified by DataType.
658                                  A NULL Selector causes the entire specified-type
659                                  configuration information to be flushed.
660   @param[in]  Data               The data buffer to be set. The structure
661                                  of the data buffer should be EFI_IPSEC_SA_DATA.
662   @param[in]  Context            Pointer to one entry selector which describes
663                                  the expected position the new data entry will
664                                  be added. If Context is NULL,the new entry will
665                                  be appended to the end of database.
666 
667   @retval EFI_OUT_OF_RESOURCED  The required system resource could not be allocated.
668   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
669 
670 **/
671 EFI_STATUS
672 SetSadEntry (
673   IN EFI_IPSEC_CONFIG_SELECTOR       *Selector,
674   IN VOID                            *Data,
675   IN VOID                            *Context OPTIONAL
676   );
677 
678 /**
679   Set the peer authorization configuration information for the EFI IPsec driver.
680 
681   The IPsec configuration data has a unique selector/identifier separately to
682   identify a data entry.
683 
684   @param[in]  Selector           Pointer to an entry selector on operated
685                                  configuration data specified by DataType.
686                                  A NULL Selector causes the entire specified-type
687                                  configuration information to be flushed.
688   @param[in]  Data               The data buffer to be set. The structure
689                                  of the data buffer should be EFI_IPSEC_PAD_DATA.
690   @param[in]  Context            Pointer to one entry selector that describes
691                                  the expected position where the new data entry will
692                                  be added. If Context is NULL, the new entry will
693                                  be appended the end of database.
694 
695   @retval EFI_OUT_OF_RESOURCED  The required system resource could not be allocated.
696   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
697 
698 **/
699 EFI_STATUS
700 SetPadEntry (
701   IN EFI_IPSEC_CONFIG_SELECTOR       *Selector,
702   IN VOID                            *Data,
703   IN VOID                            *Context OPTIONAL
704   );
705 
706 /**
707   This function looks up the data entry from IPsec SPD, and returns the configuration
708   value of the specified SPD Entry.
709 
710   @param[in]      Selector      Pointer to an entry selector which is an identifier
711                                 of the SPD entry.
712   @param[in, out] DataSize      On output the size of data returned in Data.
713   @param[out]     Data          The buffer to return the contents of the IPsec
714                                 configuration data. The type of the data buffer
715                                 is associated with the DataType.
716 
717   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
718   @retval EFI_INVALID_PARAMETER Data is NULL and *DataSize is not zero.
719   @retval EFI_NOT_FOUND         The configuration data specified by Selector is not found.
720   @retval EFI_BUFFER_TOO_SMALL  The DataSize is too small for the result. DataSize has been
721                                 updated with the size needed to complete the request.
722 
723 **/
724 EFI_STATUS
725 GetSpdEntry (
726   IN     EFI_IPSEC_CONFIG_SELECTOR    *Selector,
727   IN OUT UINTN                        *DataSize,
728      OUT VOID                         *Data
729   );
730 
731 /**
732   This function looks up the data entry from IPsec SAD and returns the configuration
733   value of the specified SAD Entry.
734 
735   @param[in]      Selector      Pointer to an entry selector that is an identifier
736                                 of the SAD entry.
737   @param[in, out] DataSize      On output, the size of data returned in Data.
738   @param[out]     Data          The buffer to return the contents of the IPsec
739                                 configuration data. This type of the data buffer
740                                 is associated with the DataType.
741 
742   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
743   @retval EFI_NOT_FOUND         The configuration data specified by Selector is not found.
744   @retval EFI_BUFFER_TOO_SMALL  The DataSize is too small for the result. DataSize has been
745                                 updated with the size needed to complete the request.
746 
747 **/
748 EFI_STATUS
749 GetSadEntry (
750   IN     EFI_IPSEC_CONFIG_SELECTOR   *Selector,
751   IN OUT UINTN                       *DataSize,
752      OUT VOID                        *Data
753   );
754 
755 /**
756   This function looks up the data entry from IPsec PADand returns the configuration
757   value of the specified PAD Entry.
758 
759   @param[in]      Selector      Pointer to an entry selector that  is an identifier
760                                 of the PAD entry.
761   @param[in, out] DataSize      On output the size of data returned in Data.
762   @param[out]     Data          The buffer to return the contents of the IPsec
763                                 configuration data. This type of the data buffer
764                                 is associated with the DataType.
765 
766   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
767   @retval EFI_NOT_FOUND         The configuration data specified by Selector is not found.
768   @retval EFI_BUFFER_TOO_SMALL  The DataSize is too small for the result. DataSize has been
769                                 updated with the size needed to complete the request.
770 
771 **/
772 EFI_STATUS
773 GetPadEntry (
774   IN     EFI_IPSEC_CONFIG_SELECTOR   *Selector,
775   IN OUT UINTN                       *DataSize,
776      OUT VOID                        *Data
777   );
778 
779 /**
780   Return the configuration value for the EFI IPsec driver.
781 
782   This function lookup the data entry from IPsec database or IKEv2 configuration
783   information. The expected data type and unique identification are described in
784   DataType and Selector parameters.
785 
786   @param[in]      This          Pointer to the EFI_IPSEC_CONFIG_PROTOCOL instance.
787   @param[in]      DataType      The type of data to retrieve.
788   @param[in]      Selector      Pointer to an entry selector that is an identifier of the IPsec
789                                 configuration data entry.
790   @param[in, out] DataSize      On output the size of data returned in Data.
791   @param[out]     Data          The buffer to return the contents of the IPsec configuration data.
792                                 The type of the data buffer is associated with the DataType.
793 
794   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
795   @retval EFI_INVALID_PARAMETER One or more of the followings are TRUE:
796                                 - This is NULL.
797                                 - Selector is NULL.
798                                 - DataSize is NULL.
799                                 - Data is NULL and *DataSize is not zero
800   @retval EFI_NOT_FOUND         The configuration data specified by Selector is not found.
801   @retval EFI_UNSUPPORTED       The specified DataType is not supported.
802   @retval EFI_BUFFER_TOO_SMALL  The DataSize is too small for the result. DataSize has been
803                                 updated with the size needed to complete the request.
804 
805 **/
806 EFI_STATUS
807 EFIAPI
808 EfiIpSecConfigGetData (
809   IN     EFI_IPSEC_CONFIG_PROTOCOL    *This,
810   IN     EFI_IPSEC_CONFIG_DATA_TYPE   DataType,
811   IN     EFI_IPSEC_CONFIG_SELECTOR    *Selector,
812   IN OUT UINTN                        *DataSize,
813      OUT VOID                         *Data
814   );
815 
816 /**
817   Set the security association, security policy and peer authorization configuration
818   information for the EFI IPsec driver.
819 
820   This function is used to set the IPsec configuration information of type DataType for
821   the EFI IPsec driver.
822   The IPsec configuration data has a unique selector/identifier separately to identify
823   a data entry. The selector structure depends on DataType's definition.
824   Using SetData() with a Data of NULL causes the IPsec configuration data entry identified
825   by DataType and Selector to be deleted.
826 
827   @param[in] This               Pointer to the EFI_IPSEC_CONFIG_PROTOCOL instance.
828   @param[in] DataType           The type of data to be set.
829   @param[in] Selector           Pointer to an entry selector on operated configuration data
830                                 specified by DataType. A NULL Selector causes the entire
831                                 specified-type configuration information to be flushed.
832   @param[in] Data               The data buffer to be set. The structure of the data buffer is
833                                 associated with the DataType.
834   @param[in] InsertBefore       Pointer to one entry selector which describes the expected
835                                 position the new data entry will be added. If InsertBefore is NULL,
836                                 the new entry will be appended the end of database.
837 
838   @retval EFI_SUCCESS           The specified configuration entry data was set successfully.
839   @retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
840                                 - This is NULL.
841   @retval EFI_UNSUPPORTED       The specified DataType is not supported.
842   @retval EFI_OUT_OF_RESOURCED  The required system resource could not be allocated.
843 
844 **/
845 EFI_STATUS
846 EFIAPI
847 EfiIpSecConfigSetData (
848   IN EFI_IPSEC_CONFIG_PROTOCOL        *This,
849   IN EFI_IPSEC_CONFIG_DATA_TYPE       DataType,
850   IN EFI_IPSEC_CONFIG_SELECTOR        *Selector,
851   IN VOID                             *Data,
852   IN EFI_IPSEC_CONFIG_SELECTOR        *InsertBefore OPTIONAL
853   );
854 
855 /**
856   Enumerates the current selector for IPsec configuration data entry.
857 
858   This function is called multiple times to retrieve the entry Selector in IPsec
859   configuration database. On each call to GetNextSelector(), the next entry
860   Selector are retrieved into the output interface.
861 
862   If the entire IPsec configuration database has been iterated, the error
863   EFI_NOT_FOUND is returned.
864   If the Selector buffer is too small for the next Selector copy, an
865   EFI_BUFFER_TOO_SMALL error is returned, and SelectorSize is updated to reflect
866   the size of buffer needed.
867 
868   On the initial call to GetNextSelector() to start the IPsec configuration database
869   search, a pointer to the buffer with all zero value is passed in Selector. Calls
870   to SetData() between calls to GetNextSelector may produce unpredictable results.
871 
872   @param[in]      This          Pointer to the EFI_IPSEC_CONFIG_PROTOCOL instance.
873   @param[in]      DataType      The type of IPsec configuration data to retrieve.
874   @param[in, out] SelectorSize  The size of the Selector buffer.
875   @param[in, out] Selector      On input, supplies the pointer to last Selector that was
876                                 returned by GetNextSelector().
877                                 On output, returns one copy of the current entry Selector
878                                 of a given DataType.
879 
880   @retval EFI_SUCCESS           The specified configuration data was obtained successfully.
881   @retval EFI_INVALID_PARAMETER One or more of the followings are TRUE:
882                                 - This is NULL.
883                                 - SelectorSize is NULL.
884                                 - Selector is NULL.
885   @retval EFI_NOT_FOUND         The next configuration data entry was not found.
886   @retval EFI_UNSUPPORTED       The specified DataType is not supported.
887   @retval EFI_BUFFER_TOO_SMALL  The SelectorSize is too small for the result. This parameter
888                                 has been updated with the size needed to complete the search
889                                 request.
890 
891 **/
892 EFI_STATUS
893 EFIAPI
894 EfiIpSecConfigGetNextSelector (
895   IN     EFI_IPSEC_CONFIG_PROTOCOL    *This,
896   IN     EFI_IPSEC_CONFIG_DATA_TYPE   DataType,
897   IN OUT UINTN                        *SelectorSize,
898   IN OUT EFI_IPSEC_CONFIG_SELECTOR    *Selector
899   );
900 
901 /**
902   Register an event that is to be signaled whenever a configuration process on the
903   specified IPsec configuration information is done.
904 
905   The register function is not surpport now and always returns EFI_UNSUPPORTED.
906 
907   @param[in] This               Pointer to the EFI_IPSEC_CONFIG_PROTOCOL instance.
908   @param[in] DataType           The type of data to be registered the event for.
909   @param[in] Event              The event to be registered.
910 
911   @retval EFI_SUCCESS           The event is registered successfully.
912   @retval EFI_INVALID_PARAMETER This is NULL, or Event is NULL.
913   @retval EFI_ACCESS_DENIED     The Event is already registered for the DataType.
914   @retval EFI_UNSUPPORTED       The notify registration unsupported, or the specified
915                                 DataType is not supported.
916 
917 **/
918 EFI_STATUS
919 EFIAPI
920 EfiIpSecConfigRegisterNotify (
921   IN EFI_IPSEC_CONFIG_PROTOCOL        *This,
922   IN EFI_IPSEC_CONFIG_DATA_TYPE       DataType,
923   IN EFI_EVENT                        Event
924   );
925 
926 
927 /**
928   Remove the specified event that was previously registered on the specified IPsec
929   configuration data.
930 
931   This function is not supported now and always returns EFI_UNSUPPORTED.
932 
933   @param[in] This               Pointer to the EFI_IPSEC_CONFIG_PROTOCOL instance.
934   @param[in] DataType           The configuration data type to remove the registered event for.
935   @param[in] Event              The event to be unregistered.
936 
937   @retval EFI_SUCCESS           The event was removed successfully.
938   @retval EFI_NOT_FOUND         The Event specified by DataType could not be found in the
939                                 database.
940   @retval EFI_INVALID_PARAMETER This is NULL or Event is NULL.
941   @retval EFI_UNSUPPORTED       The notify registration unsupported or the specified
942                                 DataType is not supported.
943 
944 **/
945 EFI_STATUS
946 EFIAPI
947 EfiIpSecConfigUnregisterNotify (
948   IN EFI_IPSEC_CONFIG_PROTOCOL        *This,
949   IN EFI_IPSEC_CONFIG_DATA_TYPE       DataType,
950   IN EFI_EVENT                        Event
951   );
952 
953 extern LIST_ENTRY   mConfigData[IPsecConfigDataTypeMaximum];
954 
955 #endif
956