[U-Boot] [PATCH 1/1] efi_loader: legal characters in StrToFat()

Heinrich Schuchardt xypron.glpk at gmx.de
Wed Jun 12 19:14:40 UTC 2019

The UEFI specification does not specify if the characters that have to be
replaced by underscore in function StrToFat() of the Unicode collation
protocol are those forbidden in FAT long names or those in FAT short names.
EDK2 and UEFI SCT assume it is those forbidden in FAT 8.3 short names.

Adjust the list of forbidden characters.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
 lib/efi_loader/efi_unicode_collation.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/efi_loader/efi_unicode_collation.c b/lib/efi_loader/efi_unicode_collation.c
index 4fe2362555..243c51a8db 100644
--- a/lib/efi_loader/efi_unicode_collation.c
+++ b/lib/efi_loader/efi_unicode_collation.c
@@ -11,8 +11,8 @@
 #include <cp437.h>
 #include <efi_loader.h>

-/* Characters that may not be used in file names */
-static const char illegal[] = "<>:\"/\\|?*\x7f";
+/* Characters that may not be used in FAT 8.3 file names */
+static const char illegal[] = "+,<=>:;\"/\\|?*[]\x7f";

  * EDK2 assumes codepage 1250 when creating FAT 8.3 file names.

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