mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-09-21 02:51:04 +02:00
260 lines
7.4 KiB
C++
260 lines
7.4 KiB
C++
/*
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* guid.h
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*
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* Created on: 16 Apr 2020
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* Author: jief
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*/
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#ifndef PLATFORM_GUID_H_
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#define PLATFORM_GUID_H_
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#include "Utils.h"
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#include "../cpp_foundation/XStringArray.h"
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#include "../cpp_foundation/unicode_conversions.h"
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extern "C" {
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#include <Uefi/UefiBaseType.h> // for EFI_GUID
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}
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extern "C" EFI_GUID gEfiMiscSubClassGuid;
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/*
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* Wrapper class to bring some syntaxic sugar : initialisation at construction, assignment, == operator, etc.
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*/
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class EFI_GUIDClass : public EFI_GUID
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{
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public:
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EFI_GUIDClass() { Data1 = 0; Data2 = 0; Data3 = 0; memset(Data4, 0, sizeof(Data4)); }
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EFI_GUIDClass(const EFI_GUID& other) { Data1 = other.Data1; Data2 = other.Data2; Data3 = other.Data3; memcpy(Data4, other.Data4, sizeof(Data4)); }
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bool operator == (const EFI_GUID& other) const {
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if ( !(Data1 == other.Data1) ) return false;
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if ( !(Data2 == other.Data2) ) return false;
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if ( !(Data3 == other.Data3) ) return false;
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if ( !(memcmp(Data4, other.Data4, sizeof(Data4)) == 0) ) return false;
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return true;
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}
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};
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extern const XString8 nullGuidAsString;
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extern EFI_GUID nullGuid;
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/** Returns TRUE is Str is ascii Guid in format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx */
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template <typename T, typename IntegralType, enable_if( is_char(T) && is_integral(IntegralType) ) >
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BOOLEAN IsValidGuidString(const T* Str, IntegralType n)
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{
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UINTN Index4IsValidGuidAsciiString; // stupid name to avoid warning : Declaration shadows a variable in the global namespace
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if ( n != 36 ) {
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return FALSE;
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}
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for (Index4IsValidGuidAsciiString = 0; Index4IsValidGuidAsciiString < 36; Index4IsValidGuidAsciiString++) {
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if (Index4IsValidGuidAsciiString == 8 || Index4IsValidGuidAsciiString == 13 || Index4IsValidGuidAsciiString == 18 || Index4IsValidGuidAsciiString == 23) {
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if (Str[Index4IsValidGuidAsciiString] != '-') {
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return FALSE;
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}
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} else {
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if (!(
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(Str[Index4IsValidGuidAsciiString] >= '0' && Str[Index4IsValidGuidAsciiString] <= '9')
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|| (Str[Index4IsValidGuidAsciiString] >= 'a' && Str[Index4IsValidGuidAsciiString] <= 'f')
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|| (Str[Index4IsValidGuidAsciiString] >= 'A' && Str[Index4IsValidGuidAsciiString] <= 'F')
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)
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)
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{
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return FALSE;
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}
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}
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}
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return TRUE;
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}
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/** Returns TRUE is Str is ascii Guid in format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx */
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template <typename T, enable_if( is___String(T) )>
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BOOLEAN IsValidGuidString(const T& Str)
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{
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if ( Str.isEmpty() ) return false;
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return IsValidGuidString(Str.data(), Str.length());
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}
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///** Returns TRUE is Str is ascii Guid in format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx */
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//template <typename T, enable_if( is___String(T) )>
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//BOOLEAN IsValidGuidAsciiString(const T& Str)
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//{
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// UINTN Index4IsValidGuidAsciiString; // stupid name to avoid warning : Declaration shadows a variable in the global namespace
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//
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// if ( Str.length() != 36 ) {
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// return FALSE;
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// }
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//
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// for (Index4IsValidGuidAsciiString = 0; Index4IsValidGuidAsciiString < 36; Index4IsValidGuidAsciiString++) {
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// if (Index4IsValidGuidAsciiString == 8 || Index4IsValidGuidAsciiString == 13 || Index4IsValidGuidAsciiString == 18 || Index4IsValidGuidAsciiString == 23) {
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// if (Str[Index4IsValidGuidAsciiString] != '-') {
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// return FALSE;
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// }
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// } else {
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// if (!(
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// (Str[Index4IsValidGuidAsciiString] >= '0' && Str[Index4IsValidGuidAsciiString] <= '9')
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// || (Str[Index4IsValidGuidAsciiString] >= 'a' && Str[Index4IsValidGuidAsciiString] <= 'f')
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// || (Str[Index4IsValidGuidAsciiString] >= 'A' && Str[Index4IsValidGuidAsciiString] <= 'F')
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// )
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// )
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// {
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// return FALSE;
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// }
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// }
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// }
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//
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// return TRUE;
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//}
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template <typename T, enable_if( is_char_ptr(T) || is___String(T) )>
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EFI_STATUS
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StrHToBuf (
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OUT UINT8 *Buf,
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IN UINTN BufferLength,
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const T& t
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)
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{
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UINTN Index4IsValidGuidAsciiString; // stupid name to avoid warning : Declaration shadows a variable in the global namespace
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UINTN StrLength;
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UINT8 Digit;
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UINT8 Byte;
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Digit = 0;
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auto Str = _xstringarray__char_type<T>::getCharPtr(t);
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//
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// Two hex char make up one byte
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//
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StrLength = BufferLength * sizeof (CHAR16);
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for(Index4IsValidGuidAsciiString = 0; Index4IsValidGuidAsciiString < StrLength; Index4IsValidGuidAsciiString++) {
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if ((Str[Index4IsValidGuidAsciiString] >= (decltype(*Str))'a') && (Str[Index4IsValidGuidAsciiString] <= (decltype(*Str))'f')) {
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Digit = (UINT8) (Str[Index4IsValidGuidAsciiString] - (decltype(*Str))'a' + 0x0A);
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} else if ((Str[Index4IsValidGuidAsciiString] >= (decltype(*Str))'A') && (Str[Index4IsValidGuidAsciiString] <= (decltype(*Str))'F')) {
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Digit = (UINT8) (Str[Index4IsValidGuidAsciiString] - L'A' + 0x0A);
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} else if ((Str[Index4IsValidGuidAsciiString] >= (decltype(*Str))'0') && (Str[Index4IsValidGuidAsciiString] <= (decltype(*Str))'9')) {
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Digit = (UINT8) (Str[Index4IsValidGuidAsciiString] - (decltype(*Str))'0');
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} else {
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return EFI_INVALID_PARAMETER;
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}
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//
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// For odd characters, write the upper nibble for each buffer byte,
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// and for even characters, the lower nibble.
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//
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if ((Index4IsValidGuidAsciiString & 1) == 0) {
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Byte = (UINT8) (Digit << 4);
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} else {
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Byte = Buf[Index4IsValidGuidAsciiString / 2];
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Byte &= 0xF0;
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Byte = (UINT8) (Byte | Digit);
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}
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Buf[Index4IsValidGuidAsciiString / 2] = Byte;
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}
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return EFI_SUCCESS;
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}
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/*
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* Convert a string to a GUID.
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* First parameter can by of one of these type : char*, char16_t*, char32_t*, wchar_t*, XString8, XString16, XString32, XStringW
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*/
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template <typename T, enable_if( is_char_ptr(T) || is___String(T) )>
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EFI_STATUS
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StrToGuidBE (
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const T& t,
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OUT EFI_GUID *Guid
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)
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{
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EFI_STATUS Status;
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UINT8 GuidLE[16];
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if ( Guid == NULL ) {
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log_technical_bug("%s : call with Guid==NULL", __PRETTY_FUNCTION__);
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return EFI_UNSUPPORTED;
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}
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auto Str = _xstringarray__char_type<T>::getCharPtr(t);
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if ( Str == NULL ) {
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memset(Guid, 0, sizeof(EFI_GUID));
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return EFI_SUCCESS;
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}
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Status = StrHToBuf (&GuidLE[0], 4, Str);
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if ( Status != EFI_SUCCESS ) return Status;
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while (!IS_HYPHEN (*Str) && !IS_NULL (*Str)) {
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Str ++;
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}
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if (IS_HYPHEN (*Str)) {
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Str++;
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} else {
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return EFI_UNSUPPORTED;
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}
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Status = StrHToBuf (&GuidLE[4], 2, Str);
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if ( Status != EFI_SUCCESS ) return Status;
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while (!IS_HYPHEN (*Str) && !IS_NULL (*Str)) {
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Str ++;
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}
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if (IS_HYPHEN (*Str)) {
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Str++;
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} else {
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return EFI_UNSUPPORTED;
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}
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Status = StrHToBuf (&GuidLE[6], 2, Str);
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if ( Status != EFI_SUCCESS ) return Status;
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while (!IS_HYPHEN (*Str) && !IS_NULL (*Str)) {
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Str ++;
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}
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if (IS_HYPHEN (*Str)) {
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Str++;
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} else {
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return EFI_UNSUPPORTED;
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}
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Status = StrHToBuf (&GuidLE[8], 2, Str);
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if ( Status != EFI_SUCCESS ) return Status;
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while (!IS_HYPHEN (*Str) && !IS_NULL (*Str)) {
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Str ++;
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}
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if (IS_HYPHEN (*Str)) {
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Str++;
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} else {
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return EFI_UNSUPPORTED;
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}
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Status = StrHToBuf (&GuidLE[10], 6, Str);
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if ( Status != EFI_SUCCESS ) return Status;
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if (Guid) {
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memcpy((UINT8*)Guid, &GuidLE[0], sizeof(EFI_GUID));
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}
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return EFI_SUCCESS;
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}
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XString8 GuidBeToXString8(const EFI_GUID& Guid);
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XStringW GuidBeToXStringW(const EFI_GUID& Guid);
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XString8 GuidLEToXString8(const EFI_GUID& Guid);
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XStringW GuidLEToXStringW(const EFI_GUID& Guid);
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#endif /* PLATFORM_GUID_H_ */
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