mirror of
https://github.com/reactos/reactos.git
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242 lines
6.7 KiB
C
242 lines
6.7 KiB
C
#ifndef _STORDUID_H_
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#define _STORDUID_H_
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typedef enum _DUID_MATCH_STATUS
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{
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DuidExactMatch = 0,
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DuidSubIdMatch,
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DuidNoMatch,
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DuidErrorGeneral = 100,
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DuidErrorMissingDuid,
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DuidErrorVersionMismatch,
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DuidErrorInvalidDuid,
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DuidErrorInvalidDeviceIdDescSize,
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DuidErrorInvalidDeviceDescSize,
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DuidErrorInvalidLayoutSigSize,
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DuidErrorInvalidLayoutSigVersion,
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DuidErrorMaximum
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} DUID_MATCH_STATUS;
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#define DUID_VERSION_1 1
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#define DUID_HARDWARE_IDS_ONLY 0
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#define DUID_INCLUDE_SOFTWARE_IDS 1
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#define DUID_MATCH_ERROR(_duid_status) ((_duid_status) >= DuidErrorGeneral ? TRUE : FALSE)
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#define DUID_MATCH_SUCCESS(_duid_status) ((_duid_status) < DuidErrorGeneral ? TRUE : FALSE)
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typedef struct _STORAGE_DEVICE_UNIQUE_IDENTIFIER
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{
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ULONG Version;
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ULONG Size;
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ULONG StorageDeviceIdOffset;
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ULONG StorageDeviceOffset;
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ULONG DriveLayoutSignatureOffset;
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} STORAGE_DEVICE_UNIQUE_IDENTIFIER, *PSTORAGE_DEVICE_UNIQUE_IDENTIFIER;
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typedef struct _STORAGE_DEVICE_LAYOUT_SIGNATURE
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{
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ULONG Version;
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ULONG Size;
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BOOLEAN Mbr;
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union {
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ULONG MbrSignature;
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GUID GptDiskId;
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} DeviceSpecific;
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} STORAGE_DEVICE_LAYOUT_SIGNATURE, *PSTORAGE_DEVICE_LAYOUT_SIGNATURE;
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FORCEINLINE
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DUID_MATCH_STATUS
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CompareStorageDuids(
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_In_ PSTORAGE_DEVICE_UNIQUE_IDENTIFIER Duid1,
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_In_ PSTORAGE_DEVICE_UNIQUE_IDENTIFIER Duid2);
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FORCEINLINE
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DUID_MATCH_STATUS
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CompareStorageDuids(
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_In_ PSTORAGE_DEVICE_UNIQUE_IDENTIFIER Duid1,
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_In_ PSTORAGE_DEVICE_UNIQUE_IDENTIFIER Duid2)
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{
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if (!Duid1 || !Duid2)
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{
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return DuidErrorMissingDuid;
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}
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if (Duid1->Size < sizeof(STORAGE_DEVICE_UNIQUE_IDENTIFIER) ||
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Duid2->Size < sizeof(STORAGE_DEVICE_UNIQUE_IDENTIFIER))
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{
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return DuidErrorGeneral;
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}
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if (Duid1->Version != DUID_VERSION_1 || Duid2->Version != DUID_VERSION_1)
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{
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return DuidErrorVersionMismatch;
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}
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if (Duid1->StorageDeviceIdOffset == 0 && Duid1->StorageDeviceOffset == 0 &&
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Duid1->DriveLayoutSignatureOffset == 0)
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{
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return DuidErrorInvalidDuid;
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}
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if (Duid2->StorageDeviceIdOffset == 0 && Duid2->StorageDeviceOffset == 0 &&
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Duid2->DriveLayoutSignatureOffset == 0)
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{
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return DuidErrorInvalidDuid;
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}
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if (Duid1->Size == Duid2->Size)
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{
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if (memcmp(Duid1, Duid2, Duid1->Size) == 0)
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{
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return DuidExactMatch;
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}
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}
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if (Duid1->StorageDeviceIdOffset && Duid2->StorageDeviceIdOffset)
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{
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PSTORAGE_DEVICE_ID_DESCRIPTOR idDesc1;
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PSTORAGE_DEVICE_ID_DESCRIPTOR idDesc2;
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PSTORAGE_IDENTIFIER ident1;
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PSTORAGE_IDENTIFIER ident2;
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ULONG idx1;
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ULONG idx2;
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idDesc1 = (PSTORAGE_DEVICE_ID_DESCRIPTOR)((PUCHAR)Duid1 + Duid1->StorageDeviceIdOffset);
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idDesc2 = (PSTORAGE_DEVICE_ID_DESCRIPTOR)((PUCHAR)Duid2 + Duid2->StorageDeviceIdOffset);
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if (idDesc1->Size < sizeof(STORAGE_DEVICE_ID_DESCRIPTOR) ||
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idDesc2->Size < sizeof(STORAGE_DEVICE_ID_DESCRIPTOR))
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{
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return DuidErrorInvalidDeviceIdDescSize;
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}
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if (idDesc1->Size == idDesc2->Size)
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{
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if (memcmp(idDesc1, idDesc2, idDesc1->Size) == 0)
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{
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return DuidSubIdMatch;
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}
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}
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ident1 = (PSTORAGE_IDENTIFIER)(idDesc1->Identifiers);
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for (idx1 = 0; idx1 < idDesc1->NumberOfIdentifiers; idx1++)
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{
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if ((ident1->Type == StorageIdTypeScsiNameString || ident1->Type == StorageIdTypeFCPHName ||
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ident1->Type == StorageIdTypeEUI64 || ident1->Type == StorageIdTypeVendorId) &&
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(ident1->Association == StorageIdAssocPort) &&
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(ident1->CodeSet == StorageIdCodeSetUtf8 || ident1->CodeSet == StorageIdCodeSetAscii ||
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ident1->CodeSet == StorageIdCodeSetBinary))
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{
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ident2 = (PSTORAGE_IDENTIFIER)(idDesc2->Identifiers);
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for (idx2 = 0; idx2 < idDesc2->NumberOfIdentifiers; idx2++)
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{
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if (ident1->Type == ident2->Type && ident1->Association == ident2->Association &&
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ident1->CodeSet == ident2->CodeSet &&
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ident1->IdentifierSize == ident2->IdentifierSize &&
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(memcmp(ident1->Identifier, ident2->Identifier, ident1->IdentifierSize) == 0))
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{
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return DuidSubIdMatch;
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}
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ident2 = (PSTORAGE_IDENTIFIER)((PUCHAR)ident2 + ident2->NextOffset);
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}
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}
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ident1 = (PSTORAGE_IDENTIFIER)((PUCHAR)ident1 + ident1->NextOffset);
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}
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}
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if (Duid1->StorageDeviceOffset && Duid2->StorageDeviceOffset)
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{
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PSTORAGE_DEVICE_DESCRIPTOR desc1;
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PSTORAGE_DEVICE_DESCRIPTOR desc2;
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desc1 = (PSTORAGE_DEVICE_DESCRIPTOR)((PUCHAR)Duid1 + Duid1->StorageDeviceOffset);
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desc2 = (PSTORAGE_DEVICE_DESCRIPTOR)((PUCHAR)Duid2 + Duid2->StorageDeviceOffset);
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if (desc1->Size < sizeof(STORAGE_DEVICE_DESCRIPTOR) ||
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desc2->Size < sizeof(STORAGE_DEVICE_DESCRIPTOR))
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{
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return DuidErrorInvalidDeviceDescSize;
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}
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if (desc1->Size == desc2->Size)
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{
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if (memcmp(desc1, desc2, desc1->Size) == 0)
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{
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return DuidSubIdMatch;
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}
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}
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if (desc1->SerialNumberOffset && desc2->SerialNumberOffset)
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{
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const char *string1;
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const char *string2;
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string1 = (const char *)((PUCHAR)desc1 + desc1->SerialNumberOffset);
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string2 = (const char *)((PUCHAR)desc2 + desc2->SerialNumberOffset);
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if (strcmp(string1, string2) == 0)
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{
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if (desc1->VendorIdOffset && desc2->VendorIdOffset)
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{
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string1 = (const char *)((PUCHAR)desc1 + desc1->VendorIdOffset);
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string2 = (const char *)((PUCHAR)desc2 + desc2->VendorIdOffset);
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if (strcmp(string1, string2) != 0)
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{
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return DuidNoMatch;
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}
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}
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if (desc1->ProductIdOffset && desc2->ProductIdOffset)
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{
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string1 = (const char *)((PUCHAR)desc1 + desc1->ProductIdOffset);
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string2 = (const char *)((PUCHAR)desc2 + desc2->ProductIdOffset);
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if (strcmp(string1, string2) != 0)
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{
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return DuidNoMatch;
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}
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}
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return DuidSubIdMatch;
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}
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}
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}
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if (Duid1->DriveLayoutSignatureOffset && Duid2->DriveLayoutSignatureOffset)
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{
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PSTORAGE_DEVICE_LAYOUT_SIGNATURE sig1;
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PSTORAGE_DEVICE_LAYOUT_SIGNATURE sig2;
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sig1 = (PSTORAGE_DEVICE_LAYOUT_SIGNATURE)((PUCHAR)Duid1 + Duid1->DriveLayoutSignatureOffset);
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sig2 = (PSTORAGE_DEVICE_LAYOUT_SIGNATURE)((PUCHAR)Duid2 + Duid2->DriveLayoutSignatureOffset);
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if (sig1->Version != DUID_VERSION_1 && sig2->Version != DUID_VERSION_1)
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{
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return DuidErrorInvalidLayoutSigVersion;
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}
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if (sig1->Size < sizeof(STORAGE_DEVICE_LAYOUT_SIGNATURE) ||
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sig2->Size < sizeof(STORAGE_DEVICE_LAYOUT_SIGNATURE))
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{
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return DuidErrorInvalidLayoutSigSize;
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}
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if (memcmp(sig1, sig2, sizeof(STORAGE_DEVICE_LAYOUT_SIGNATURE)) == 0)
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{
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return DuidSubIdMatch;
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}
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}
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return DuidNoMatch;
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}
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#endif /* _STORDUID_H_ */
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