linux/fs/f2fs
Daniel Rosenberg 7ad08a58bf f2fs: Handle casefolding with Encryption
Expand f2fs's casefolding support to include encrypted directories.  To
index casefolded+encrypted directories, we use the SipHash of the
casefolded name, keyed by a key derived from the directory's fscrypt
master key.  This ensures that the dirhash doesn't leak information
about the plaintext filenames.

Encryption keys are unavailable during roll-forward recovery, so we
can't compute the dirhash when recovering a new dentry in an encrypted +
casefolded directory.  To avoid having to force a checkpoint when a new
file is fsync'ed, store the dirhash on-disk appended to i_name.

This patch incorporates work by Eric Biggers <ebiggers@google.com>
and Jaegeuk Kim <jaegeuk@kernel.org>.

Co-developed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2020-12-02 22:00:21 -08:00
..
acl.c f2fs: Remove the redundancy initialization 2020-12-02 22:00:21 -08:00
acl.h f2fs: Use the correct style for SPDX License Identifier 2020-05-08 06:55:55 -07:00
checkpoint.c f2fs: Remove the redundancy initialization 2020-12-02 22:00:21 -08:00
compress.c f2fs: fix slab leak of rpages pointer 2020-09-29 09:16:36 -07:00
data.c f2fs: introduce check_swap_activate_fast() 2020-10-13 23:23:34 -07:00
debug.c f2fs: clean up kvfree 2020-09-14 11:15:37 -07:00
dir.c f2fs: Handle casefolding with Encryption 2020-12-02 22:00:21 -08:00
extent_cache.c f2fs: support 64-bits key in f2fs rb-tree node entry 2020-09-10 14:03:30 -07:00
f2fs.h f2fs: Handle casefolding with Encryption 2020-12-02 22:00:21 -08:00
file.c f2fs: fix compat F2FS_IOC_{MOVE,GARBAGE_COLLECT}_RANGE 2020-12-02 22:00:20 -08:00
gc.c f2fs: clean up kvfree 2020-09-14 11:15:37 -07:00
gc.h f2fs: support age threshold based garbage collection 2020-09-11 11:11:15 -07:00
hash.c f2fs: Handle casefolding with Encryption 2020-12-02 22:00:21 -08:00
inline.c f2fs: Handle casefolding with Encryption 2020-12-02 22:00:21 -08:00
inode.c f2fs: fix to set SBI_NEED_FSCK flag for inconsistent inode 2020-10-09 10:29:31 -07:00
Kconfig f2fs: compress: support lzo-rle compress algorithm 2020-05-11 20:36:46 -07:00
Makefile f2fs: support data compression 2020-01-17 16:48:07 -08:00
namei.c fscrypt: Have filesystems handle their d_ops 2020-12-02 22:00:21 -08:00
node.c f2fs: call f2fs_get_meta_page_retry for nat page 2020-11-02 08:33:01 -08:00
node.h f2fs: shrink spinlock coverage 2020-05-11 20:36:46 -07:00
recovery.c f2fs: Handle casefolding with Encryption 2020-12-02 22:00:21 -08:00
segment.c f2fs: don't issue flush in f2fs_flush_device_cache() for nobarrier case 2020-10-13 23:23:34 -07:00
segment.h f2fs: fix wrong total_sections check and fsmeta check 2020-09-29 01:48:34 -07:00
shrinker.c f2fs: fix inconsistent comments 2020-03-10 09:18:33 -07:00
super.c f2fs: Handle casefolding with Encryption 2020-12-02 22:00:21 -08:00
sysfs.c f2fs: wait for sysfs kobject removal before freeing f2fs_sb_info 2020-10-14 13:23:30 -07:00
trace.c f2fs: do not use mutex lock in atomic context 2019-03-05 19:58:06 -08:00
trace.h f2fs: Use the correct style for SPDX License Identifier 2020-05-08 06:55:55 -07:00
verity.c mm/readahead: make page_cache_ra_unbounded take a readahead_control 2020-10-16 11:11:16 -07:00
xattr.c f2fs: clean up kvfree 2020-09-14 11:15:37 -07:00
xattr.h f2fs: code cleanup by removing ifdef macro surrounding 2020-05-26 18:56:10 -07:00