Eric Biggers e98ad46475 fscrypt: add FS_IOC_GET_ENCRYPTION_NONCE ioctl ... Add an ioctl FS_IOC_GET_ENCRYPTION_NONCE which retrieves the nonce from an encrypted file or directory. The nonce is the 16-byte random value stored in the inode's encryption xattr. It is normally used together with the master key to derive the inode's actual encryption key. The nonces are needed by automated tests that verify the correctness of the ciphertext on-disk. Except for the IV_INO_LBLK_64 case, there's no way to replicate a file's ciphertext without knowing that file's nonce. The nonces aren't secret, and the existing ciphertext verification tests in xfstests retrieve them from disk using debugfs or dump.f2fs. But in environments that lack these debugging tools, getting the nonces by manually parsing the filesystem structure would be very hard. To make this important type of testing much easier, let's just add an ioctl that retrieves the nonce. Link: https://lore.kernel.org/r/20200314205052.93294-2-ebiggers@kernel.org Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Biggers <ebiggers@google.com>		2020-03-19 21:56:54 -07:00
..
caching	Documentation: Use "while" instead of "whilst"	2018-11-20 09:30:43 -07:00
cifs	various cifs/smb3 fixes (including for share deleted cases) and features including improved encrypted read performance, and various debugging improvements	2019-09-19 10:32:16 -07:00
configfs	configfs: fix wrong name of struct in documentation	2018-12-20 08:41:38 -07:00
ext4	Added new ext4 debugging ioctls to allow userspace to get information	2019-09-21 13:37:39 -07:00
nfs	Documentation: nfs: fault_injection: convert to ReST	2020-01-16 12:43:05 -07:00
9p.txt
adfs.txt	Documentation: update adfs filesystem documentation	2020-01-20 20:12:42 -05:00
affs.txt
afs.txt	afs: Implement @sys substitution handling	2018-04-09 21:12:31 +01:00
api-summary.rst	docs: no structured comments in fs/file_table.c	2019-05-24 15:03:39 -06:00
autofs-mount-control.txt	autofs: update mount control expire desription with AUTOFS_EXP_FORCED	2019-05-14 19:52:50 -07:00
autofs.rst	docs: filesystems: Add mount map description in Content	2019-11-18 12:19:59 -07:00
automount-support.txt	Documentation: filesystems: automount-support: Change reference to document autofs.txt to autofs.rst	2019-12-19 09:35:51 -07:00
befs.txt
bfs.txt
btrfs.txt
ceph.txt	ceph: auto reconnect after blacklisted	2019-09-16 12:06:24 +02:00
coda.txt	coda: Fix typo in the struct CodaCred documentation	2019-07-30 14:19:41 -06:00
cramfs.txt	cramfs: rehabilitate it	2017-10-15 00:47:23 -04:00
dax.txt	Documentation: filesystem: Convert xfs.txt to ReST	2019-07-15 09:15:09 -07:00
debugfs.txt	debugfs: Add debugfs_create_xul() for hexadecimal unsigned long	2019-11-03 18:08:53 +01:00
devpts.txt
directory-locking.rst	docs: fs: convert docs without extension to ReST	2019-07-31 13:31:05 -06:00
dlmfs.txt
dnotify.txt	Documentation: fix selftests related file refs	2017-10-19 12:58:21 -06:00
ecryptfs.txt
efivarfs.txt
erofs.txt	erofs: update documentation	2019-12-08 21:37:01 +08:00
ext2.txt	doc: ext2: update description of quota options for ext2	2019-05-20 10:50:48 +02:00
ext3.txt
f2fs.txt	f2fs: delete duplicate information on sysfs nodes	2020-01-22 17:14:14 -08:00
fiemap.txt
files.txt
fscrypt.rst	fscrypt: add FS_IOC_GET_ENCRYPTION_NONCE ioctl	2020-03-19 21:56:54 -07:00
fsverity.rst	docs: fs-verity: mention statx() support	2019-11-13 12:15:34 -08:00
fuse-io.txt	fuse: add writeback documentation	2018-03-20 17:11:45 +01:00
fuse.rst	Documentation: filesystems: convert fuse to RST	2020-02-06 16:39:28 +01:00
gfs2-glocks.txt	GFS2: Minor improvements to comments and documentation	2018-04-12 10:07:51 -07:00
gfs2-uevents.txt
gfs2.txt
hfs.txt
hfsplus.txt
hpfs.txt
index.rst	fuse fixes for 5.6-rc1	2020-02-07 17:59:07 -08:00
inotify.txt
isofs.txt
journalling.rst	docs: Bring some order to filesystem documentation	2019-03-06 09:46:10 -07:00
locking.rst	Documentation: atomic_open called with shared lock on non-O_CREAT open	2019-11-07 13:17:25 -07:00
locks.txt
mandatory-locking.txt	locks: print a warning when mount fails due to lack of "mand" support	2019-08-16 12:13:48 -04:00
mount_api.txt	fs_parser: remove fs_parameter_description name field	2020-02-07 14:48:36 -05:00
nilfs2.txt	MAINTAINERS, nilfs2: change project home URLs	2018-01-13 10:42:48 -08:00
ntfs.txt
ocfs2-online-filecheck.txt
ocfs2.txt
omfs.txt
orangefs.txt	Orangefs: documentation updates	2018-04-04 14:05:48 -04:00
overlayfs.rst	docs: filesystems: overlayfs: Fix restview warnings	2019-12-10 16:00:55 +01:00
path-lookup.rst	Documentation: path-lookup: include new LOOKUP flags	2020-01-18 09:19:28 -05:00
path-lookup.txt
porting.rst	docs: fs: porting.rst: fix a broken reference to another doc	2019-07-31 14:30:23 -06:00
proc.txt	mm: thp: fix false negative of shmem vma's THP eligibility	2019-07-18 17:08:06 -07:00
qnx6.txt	Documentation: Use "while" instead of "whilst"	2018-11-20 09:30:43 -07:00
quota.txt
ramfs-rootfs-initramfs.txt	docs: early-userspace: move to driver-api guide	2019-07-15 11:03:01 -03:00
relay.txt	Documentation : Update relay function types	2018-07-10 15:11:00 -06:00
romfs.txt
seq_file.txt	fs/seq_file.c: simplify seq_file iteration code and interface	2018-08-17 16:20:28 -07:00
sharedsubtree.txt
splice.rst	docs: Bring some order to filesystem documentation	2019-03-06 09:46:10 -07:00
spufs.txt	Documentation: fix spelling mistake, EACCESS -> EACCES	2018-11-07 15:28:55 -07:00
squashfs.txt
sysfs-pci.txt
sysfs-tagging.txt
sysfs.txt	docs: driver-model: move it to the driver-api book	2019-07-15 11:03:02 -03:00
sysv-fs.txt
tmpfs.txt	docs: cgroup-v1: add it to the admin-guide book	2019-07-15 11:03:02 -03:00
ubifs-authentication.rst	docs: ubifs-authentication.md: convert to ReST	2019-07-31 13:25:22 -06:00
ubifs.txt	ubifs: Enable authentication support	2018-10-23 13:49:01 +02:00
udf.txt	udf: Remove never implemented mount options	2018-02-27 10:25:33 +01:00
vfat.rst	Documentation: filesystems: convert vfat.txt to RST	2020-01-10 10:58:45 -07:00
vfs.rst	docs: fs: convert docs without extension to ReST	2019-07-31 13:31:05 -06:00
virtiofs.rst	virtio-fs: add Documentation/filesystems/virtiofs.rst	2019-09-18 15:09:34 +02:00
xfs-delayed-logging-design.txt	Documentation: xfs: Fix typo	2019-06-07 11:42:20 -06:00
xfs-self-describing-metadata.txt	xfs: add struct xfs_mount pointer to struct xfs_buf	2019-06-28 19:27:29 -07:00
zonefs.txt	zonefs: fix documentation typos etc.	2020-02-21 18:09:26 +09:00