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linux/Documentation/filesystems
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Joe Perches 2efc459d06 sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 
Output defects can exist in sysfs content using sprintf and snprintf.

sprintf does not know the PAGE_SIZE maximum of the temporary buffer
used for outputting sysfs content and it's possible to overrun the
PAGE_SIZE buffer length.

Add a generic sysfs_emit function that knows that the size of the
temporary buffer and ensures that no overrun is done.

Add a generic sysfs_emit_at function that can be used in multiple
call situations that also ensures that no overrun is done.

Validate the output buffer argument to be page aligned.
Validate the offset len argument to be within the PAGE_SIZE buf.

Signed-off-by: Joe Perches <joe@perches.com>
Link: https://lore.kernel.org/r/884235202216d464d61ee975f7465332c86f76b2.1600285923.git.joe@perches.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02 12:02:30 +02:00
..
caching docs: filesystems: Replace HTTP links with HTTPS ones 2020-07-13 09:33:22 -06:00
cifs docs: filesystems: convert cifs/cifsroot.txt to ReST 2020-05-05 09:22:21 -06:00
ext4 ext4: replace HTTP links with HTTPS ones 2020-08-06 01:01:57 -04:00
nfs Replace HTTP links with HTTPS ones: Documentation/filesystems 2020-06-26 11:14:12 -06:00
spufs docs: filesystems: convert spufs/spu_run.txt to ReST 2020-05-05 09:22:24 -06:00
9p.rst Replace HTTP links with HTTPS ones: 9P FILE SYSTEM 2020-07-13 11:28:12 -06:00
adfs.rst docs: filesystems: convert adfs.txt to ReST 2020-03-02 13:58:44 -07:00
affs.rst affs: fix basic permission bits to actually work 2020-08-31 12:20:31 +02:00
afs.rst Replace HTTP links with HTTPS ones: AFS FILESYSTEM 2020-07-13 11:25:29 -06:00
api-summary.rst docs: no structured comments in fs/file_table.c 2019-05-24 15:03:39 -06:00
autofs-mount-control.rst Documentation: filesystems: autofs-mount-control: drop doubled words 2020-07-05 14:44:29 -06:00
autofs.rst docs: filesystems: Add mount map description in Content 2019-11-18 12:19:59 -07:00
automount-support.rst docs: filesystems: convert automount-support.txt to ReST 2020-05-05 09:22:21 -06:00
befs.rst docs: filesystems: convert befs.txt to ReST 2020-03-02 14:01:25 -07:00
bfs.rst docs: filesystems: convert bfs.txt to ReST 2020-03-02 14:01:26 -07:00
btrfs.rst docs: filesystems: convert btrfs.txt to ReST 2020-03-02 14:01:28 -07:00
ceph.rst The main items are: 2020-04-08 21:44:05 -07:00
coda.rst Documentation: coda: annotate duplicated words 2020-07-13 10:02:32 -06:00
configfs.rst Documentation: filesystems: configfs: drop doubled word 2020-07-05 14:44:29 -06:00
cramfs.rst docs: filesystems: convert cramfs.txt to ReST 2020-03-02 14:02:07 -07:00
dax.txt This is the second round of ext4 commits for 5.8 merge window. It 2020-06-15 09:32:10 -07:00
debugfs.rst debugfs: make sure we can remove u32_array files cleanly 2020-07-10 13:54:00 -07:00
devpts.rst docs: filesystems: convert devpts.txt to ReST 2020-05-05 09:22:21 -06:00
directory-locking.rst Documentation: filesystems: directory-locking: drop doubled word 2020-07-05 14:44:29 -06:00
dlmfs.rst ocfs2: replace HTTP links with HTTPS ones 2020-08-07 11:33:22 -07:00
dnotify.rst docs: filesystems: convert dnotify.txt to ReST 2020-05-05 09:22:22 -06:00
ecryptfs.rst docs: prevent warnings due to autosectionlabel 2020-03-20 17:01:29 -06:00
efivarfs.rst docs: filesystems: add info about efivars content 2020-05-25 18:59:59 -06:00
erofs.rst docs: filesystems: convert erofs.txt to ReST 2020-03-02 14:02:57 -07:00
ext2.rst docs: filesystems: convert ext2.txt to ReST 2020-03-02 14:02:59 -07:00
ext3.rst docs: filesystems: convert ext3.txt to ReST 2020-03-02 14:03:16 -07:00
f2fs.rst f2fs-for-5.9-rc1 2020-08-10 18:33:22 -07:00
fiemap.rst A lot of bug fixes and cleanups for ext4, including: 2020-06-05 16:19:28 -07:00
files.rst docs: filesystems: convert files.txt to ReST 2020-05-05 09:22:22 -06:00
fscrypt.rst fscrypt: document inline encryption support 2020-07-27 09:18:49 -07:00
fsverity.rst Documentation: filesystems: fsverity: drop doubled word 2020-07-05 14:44:29 -06:00
fuse-io.rst docs: filesystems: convert fuse-io.txt to ReST 2020-05-05 09:22:22 -06:00
fuse.rst docs: filesystems: fuse.rst: supress a Sphinx warning 2020-03-10 11:55:25 -06:00
gfs2-glocks.rst docs: filesystems: convert gfs2-glocks.txt to ReST 2020-06-02 19:45:05 +02:00
gfs2-uevents.rst docs: filesystems: convert gfs2-uevents.txt to ReST 2020-03-02 14:03:35 -07:00
gfs2.rst docs: filesystems: convert gfs2.txt to ReST 2020-03-02 14:03:18 -07:00
hfs.rst Replace HTTP links with HTTPS ones: Documentation/filesystems 2020-06-26 11:14:12 -06:00
hfsplus.rst docs: filesystems: convert hfsplus.txt to ReST 2020-03-02 14:03:47 -07:00
hpfs.rst Replace HTTP links with HTTPS ones: Documentation/filesystems 2020-06-26 11:14:12 -06:00
index.rst Changes in gfs2: 2020-06-08 12:47:09 -07:00
inotify.rst docs: filesystems: convert inotify.txt to ReST 2020-03-02 14:03:55 -07:00
isofs.rst docs: filesystems: convert isofs.txt to ReST 2020-03-02 14:04:06 -07:00
journalling.rst Filesystems: Documentation: Replace deprecated :c:func: Usage 2020-08-11 10:23:27 -06:00
locking.rst It's been a busy cycle for documentation - hopefully the busiest for a 2020-08-04 22:47:54 -07:00
locks.rst docs: filesystems: convert mandatory-locking.txt to ReST 2020-05-05 09:22:22 -06:00
mandatory-locking.rst docs: filesystems: convert mandatory-locking.txt to ReST 2020-05-05 09:22:22 -06:00
mount_api.rst Documentation: filesystems: mount_api: drop doubled word 2020-07-05 14:44:29 -06:00
nilfs2.rst docs: filesystems: convert nilfs2.txt to ReST 2020-03-02 14:04:06 -07:00
ntfs.rst docs: filesystems: convert ntfs.txt to ReST 2020-03-02 14:04:06 -07:00
ocfs2-online-filecheck.rst docs: filesystems: convert ocfs2-online-filecheck.txt to ReST 2020-03-02 14:04:06 -07:00
ocfs2.rst ocfs2: replace HTTP links with HTTPS ones 2020-08-07 11:33:22 -07:00
omfs.rst Replace HTTP links with HTTPS ones: OMFS 2020-07-13 11:24:43 -06:00
orangefs.rst docs: orangefs: fix pvfs2tab literal block 2020-04-28 12:35:47 -06:00
overlayfs.rst It's been a busy cycle for documentation - hopefully the busiest for a 2020-08-04 22:47:54 -07:00
path-lookup.rst docs: path-lookup: markup fixes for emphasis 2020-07-27 16:14:13 -06:00
path-lookup.txt Replace HTTP links with HTTPS ones: documentation 2020-06-08 09:30:19 -06:00
porting.rst ovl: make private mounts longterm 2020-06-04 10:48:19 +02:00
proc.rst doc, mm: clarify /proc/<pid>/oom_score value range 2020-08-12 10:57:56 -07:00
qnx6.rst docs: filesystems: fix typo in qnx6.rst 2020-04-07 13:20:56 -06:00
quota.rst quota: Fixup http links in quota doc 2020-07-09 08:14:01 +02:00
ramfs-rootfs-initramfs.rst Replace HTTP links with HTTPS ones: Documentation/filesystems 2020-06-26 11:14:12 -06:00
relay.rst docs: filesystems: convert relay.txt to ReST 2020-03-02 14:04:41 -07:00
romfs.rst docs: filesystems: convert romfs.txt to ReST 2020-03-02 14:04:41 -07:00
seq_file.rst Replace HTTP links with HTTPS ones: documentation 2020-06-08 09:30:19 -06:00
sharedsubtree.rst docs: filesystems: convert sharedsubtree.txt to ReST 2020-05-05 09:22:23 -06:00
splice.rst docs: Bring some order to filesystem documentation 2019-03-06 09:46:10 -07:00
squashfs.rst docs: filesystems: convert squashfs.txt to ReST 2020-03-02 14:04:41 -07:00
sysfs-pci.rst PCI: correct flag name 2020-07-27 16:21:04 -06:00
sysfs-tagging.rst Documentation: filesystems: sysfs-tagging: drop doubled word 2020-07-05 14:44:30 -06:00
sysfs.rst sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2020-10-02 12:02:30 +02:00
sysv-fs.rst docs: filesystems: convert sysv-fs.txt to ReST 2020-03-02 14:04:41 -07:00
tmpfs.rst tmpfs: support 64-bit inums per-sb 2020-08-07 11:33:24 -07:00
ubifs-authentication.rst Replace HTTP links with HTTPS ones: Documentation/filesystems 2020-06-26 11:14:12 -06:00
ubifs.rst docs: filesystems: convert ubifs.txt to ReST 2020-03-02 14:04:41 -07:00
udf.rst udf: Replace HTTP links with HTTPS ones 2020-07-14 14:37:39 +02:00
vfat.rst Documentation: filesystems: convert vfat.txt to RST 2020-01-10 10:58:45 -07:00
vfs.rst docs: filesystems: vfs: correct flag name 2020-07-27 16:19:51 -06:00
virtiofs.rst virtiofs: Add mount option and atime behavior to the doc 2020-04-20 17:01:34 +02:00
xfs-delayed-logging-design.rst docs: filesystems: convert xfs-delayed-logging-design.txt to ReST 2020-05-05 09:22:24 -06:00
xfs-self-describing-metadata.rst New code for 5.8: 2020-06-02 19:21:40 -07:00
zonefs.rst zonefs: update documentation to reflect zone size vs capacity 2020-08-11 17:42:25 +09:00