This patch series is an attempt to address FAT write related issues in an effort of running UEFI SCT (Self-Certification Test) to verify UEFI support on u-boot.
SCT is a test platform as well as an extentisive collection of test cases for UEFI specification. It can run all the tests automatically and save test results to dedicated log files.
AFAIK, what's missing in the current fat file system to safely run SCT without errors (I don't mean test case failures) are: * write a file located under sub-directories * write a file with non-zero offset * delete a file * create a directory
Patch#1 to patch#6 are some sort of preparatory ones. Patch#7 implements write with sub-directories path. Patch#8 to patch#10 implement write with non-zero offset. Patch#11 to patch#15 are related to creating a directory. Patch#16 provides delete, but it doesn't actually delete a file but instead return 0 with purging a file content, which is good enough to run SCT for now. Finally, patch#17 fixes a minor bug in fs-test.sh.
I applied this patch set on top of v2018.07 along with a couple of yet-to--be-upstreamed UEFI-related patches, and could successfully run unmodified SCT[1] on qemu-arm.
AKASHI Takahiro (17): fs: fat: extend get_fs_info() for write use fs: fat: handle "." and ".." of root dir correctly with fat_itr_resolve() fs: fat: make directory iterator global for write use fs: fat: assure iterator's ->dent belongs to ->clust fs: fat: check and normailze file name fs: fat: write returns error code instead of -1 fs: fat: support write with sub-directory path fs: fat: refactor write interface for a file offset fs: fat: support write with non-zero offset cmd: fat: add offset parameter to fatwrite fs: add mkdir interface fs: fat: remember the starting cluster number of directory fs: fat: support mkdir cmd: fat: add fatmkdir command efi_loader: file: support creating a directory efi_loader: implement a pseudo "file delete" fs-test: fix false positive error at Test Case 12
cmd/fat.c | 22 +- fs/fat/fat.c | 98 ++-- fs/fat/fat_write.c | 1051 +++++++++++++++++++++++-------------- fs/fs.c | 46 ++ include/fat.h | 37 ++ include/fs.h | 10 + lib/efi_loader/efi_file.c | 24 +- test/fs/fs-test.sh | 2 +- 8 files changed, 825 insertions(+), 465 deletions(-)