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Allow Ext23Lib symbolic links to have longer paths 

In the Ext23Lib support for symbolic links was recently enabled
but there was a limitation imposed to use the CFG data boot
option filepath limit of 16 bytes which does not need to be also
be imposed on symbolic link paths. This will allow symbolic link
paths to be up to 260 characters long.

Signed-off-by: James Gutbub <james.gutbub@intel.com>
This commit is contained in:
James Gutbub 2021-04-29 13:30:22 -07:00 committed by Maurice Ma
parent fe116c43ed
commit 738f946aac
2 changed files with 5 additions and 3 deletions
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6
BootloaderCommonPkg/Library/Ext23Lib/Ext2Fs.c
View File

@ -735,7 +735,7 @@ Ext2fsOpen (
#ifndef LIBSA_NO_FS_SYMLINK #ifndef LIBSA_NO_FS_SYMLINK
INODE32 ParentInumber; INODE32 ParentInumber;
INT32 Nlinks; INT32 Nlinks;
CHAR8 NameBuf[MAX_FILE_PATH_LEN+1]; CHAR8 NameBuf[MAXPATHLEN+1];
CHAR8 *Buf; CHAR8 *Buf;
Nlinks = 0; Nlinks = 0;
@ -878,8 +878,8 @@ Ext2fsOpen (
Len = AsciiStrLen (Cp); Len = AsciiStrLen (Cp);
if (LinkLength + Len > MAX_FILE_PATH_LEN || if (((LinkLength + Len) > MAXPATHLEN) ||
++Nlinks > MAXSYMLINKS) { ((++Nlinks) > MAXSYMLINKS)) {
Status = RETURN_LOAD_ERROR; Status = RETURN_LOAD_ERROR;
goto out; goto out;
} }

2
BootloaderCommonPkg/Library/Ext23Lib/Ext2Fs.h
View File

@ -95,6 +95,8 @@
#define MAXSYMLINKS 1 #define MAXSYMLINKS 1
#define MAXPATHLEN 260
#undef EXT2FS_DEBUG #undef EXT2FS_DEBUG
#undef LIBSA_FS_SINGLECOMPONENT #undef LIBSA_FS_SINGLECOMPONENT