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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