return EFI_SUCCESS;
}
+//
+// EFI variable read and write functions
+//
+
+// From gummiboot: Retrieve a raw EFI variable.
+// Returns EFI status
+EFI_STATUS EfivarGetRaw(EFI_GUID *vendor, CHAR16 *name, CHAR8 **buffer, UINTN *size) {
+ CHAR8 *buf;
+ UINTN l;
+ EFI_STATUS err;
+
+ l = sizeof(CHAR16 *) * EFI_MAXIMUM_VARIABLE_SIZE;
+ buf = AllocatePool(l);
+ if (!buf)
+ return EFI_OUT_OF_RESOURCES;
+
+ err = refit_call5_wrapper(RT->GetVariable, name, vendor, NULL, &l, buf);
+ if (EFI_ERROR(err) == EFI_SUCCESS) {
+ *buffer = buf;
+ if (size)
+ *size = l;
+ } else
+ MyFreePool(buf);
+ return err;
+} // EFI_STATUS EfivarGetRaw()
+
+// From gummiboot: Set an EFI variable
+EFI_STATUS EfivarSetRaw(EFI_GUID *vendor, CHAR16 *name, CHAR8 *buf, UINTN size, BOOLEAN persistent) {
+ UINT32 flags;
+
+ flags = EFI_VARIABLE_BOOTSERVICE_ACCESS|EFI_VARIABLE_RUNTIME_ACCESS;
+ if (persistent)
+ flags |= EFI_VARIABLE_NON_VOLATILE;
+
+ return refit_call5_wrapper(RT->SetVariable, name, vendor, flags, size, buf);
+} // EFI_STATUS EfivarSetRaw()
+
//
// list functions
//
Volume->BlockIO != Volume->WholeDiskBlockIO) {
for (VolumeIndex2 = 0; VolumeIndex2 < VolumesCount; VolumeIndex2++) {
if (Volumes[VolumeIndex2]->BlockIO == Volume->WholeDiskBlockIO &&
- Volumes[VolumeIndex2]->BlockIOOffset == 0)
+ Volumes[VolumeIndex2]->BlockIOOffset == 0) {
WholeDiskVolume = Volumes[VolumeIndex2];
+ }
}
}
return (PathOnly);
}
+/*++
+ *
+ * Routine Description:
+ *
+ * Find a substring.
+ *
+ * Arguments:
+ *
+ * String - Null-terminated string to search.
+ * StrCharSet - Null-terminated string to search for.
+ *
+ * Returns:
+ * The address of the first occurrence of the matching substring if successful, or NULL otherwise.
+ * --*/
+CHAR16* MyStrStr (CHAR16 *String, CHAR16 *StrCharSet)
+{
+ CHAR16 *Src;
+ CHAR16 *Sub;
+
+ if ((String == NULL) || (StrCharSet == NULL))
+ return NULL;
+
+ Src = String;
+ Sub = StrCharSet;
+
+ while ((*String != L'\0') && (*StrCharSet != L'\0')) {
+ if (*String++ != *StrCharSet) {
+ String = ++Src;
+ StrCharSet = Sub;
+ } else {
+ StrCharSet++;
+ }
+ }
+ if (*StrCharSet == L'\0') {
+ return Src;
+ } else {
+ return NULL;
+ }
+} // CHAR16 *MyStrStr()
+
+// Restrict TheString to at most Limit characters.
+// Does this in two ways:
+// - Locates stretches of two or more spaces and compresses
+// them down to one space.
+// - Truncates TheString
+// Returns TRUE if changes were made, FALSE otherwise
+BOOLEAN LimitStringLength(CHAR16 *TheString, UINTN Limit) {
+ CHAR16 *SubString, *TempString;
+ UINTN i;
+ BOOLEAN HasChanged = FALSE;
+
+ // SubString will be NULL or point WITHIN TheString
+ SubString = MyStrStr(TheString, L" ");
+ while (SubString != NULL) {
+ i = 0;
+ while (SubString[i] == L' ')
+ i++;
+ if (i >= StrLen(SubString)) {
+ SubString[0] = '\0';
+ HasChanged = TRUE;
+ } else {
+ TempString = StrDuplicate(&SubString[i]);
+ if (TempString != NULL) {
+ StrCpy(&SubString[1], TempString);
+ MyFreePool(TempString);
+ HasChanged = TRUE;
+ } else {
+ // memory allocation problem; abort to avoid potentially infinite loop!
+ break;
+ } // if/else
+ } // if/else
+ SubString = MyStrStr(TheString, L" ");
+ } // while
+
+ // If the string is still too long, truncate it....
+ if (StrLen(TheString) > Limit) {
+ TheString[Limit] = '\0';
+ HasChanged = TRUE;
+ } // if
+
+ return HasChanged;
+} // BOOLEAN LimitStringLength()
+
// Takes an input loadpath, splits it into disk and filename components, finds a matching
// DeviceVolume, and returns that and the filename (*loader).
VOID FindVolumeAndFilename(IN EFI_DEVICE_PATH *loadpath, OUT REFIT_VOLUME **DeviceVolume, OUT CHAR16 **loader) {
Found = TRUE;
} // while
} // if
- return Found;
+ return Found;
} // BOOLEAN IsIn()
+// Returns TRUE if any element of List can be found as a substring of
+// BigString, FALSE otherwise. Performs comparisons case-insensitively.
+BOOLEAN IsInSubstring(IN CHAR16 *BigString, IN CHAR16 *List) {
+ UINTN i = 0, ElementLength;
+ BOOLEAN Found = FALSE;
+ CHAR16 *OneElement;
+
+ if (BigString && List) {
+ while (!Found && (OneElement = FindCommaDelimited(List, i++))) {
+ ElementLength = StrLen(OneElement);
+ if ((ElementLength <= StrLen(BigString)) && (StriSubCmp(OneElement, BigString)))
+ Found = TRUE;
+ } // while
+ } // if
+ return Found;
+} // BOOLEAN IsSubstringIn()
+
// Returns TRUE if specified Volume, Directory, and Filename correspond to an
// element in the comma-delimited List, FALSE otherwise. Note that Directory and
// Filename must *NOT* include a volume or path specification (that's part of
for (i = 0; i < Length; i++) {
a = UnknownString[i];
- if (((i == 8) || (i == 13) || (i == 18) || (i == 23)) && (a != '-')) {
- retval = FALSE;
+ if ((i == 8) || (i == 13) || (i == 18) || (i == 23)) {
+ if (a != '-')
+ retval = FALSE;
} else if (((a < 'a') || (a > 'f')) && ((a < 'A') || (a > 'F')) && ((a < '0') && (a > '9'))) {
retval = FALSE;
- } // if/else
+ } // if/else if
} // for
return retval;
} // BOOLEAN IsGuid()