Commit Graph

14 Commits

Author SHA1 Message Date
Robert Watson
8f0dcdab88 o What a good idea, `-o'' should be a `-f'' like in every other
utility that is cautious but sometimes you want to be less
  cautious.  Go figure.

Submitted by:	sheldonh
2000-09-12 14:35:48 +00:00
Robert Watson
1fec210a69 o Add a ``-o'' argument to initattr, which causes extattrctl to overwrite
the existing attribute file rather than aborting with an error.
o Useful if you want to reset the state of attributes on the system without
  allocating different disk blocks through deletion and recreation,
  for example, if you're doing benchmarks of extended attribute code. :-)

Obtained from:	TrustedBSD Project
2000-09-12 04:40:34 +00:00
Robert Watson
6af9621841 o When pre-allocating attribute storage space, also allocate space for
attribute instance headers, or higher inode numbers will require
  additional disk blocks to be allocated later.

Obtained from:	TrustedBSD Project
2000-09-07 20:32:31 +00:00
Sheldon Hearn
5f435a0876 Whitespace-only: remove the only hard sentence break in the file. 2000-09-04 08:58:41 +00:00
Robert Watson
bbf0607700 Modify extended attribute protection model to authorize based on
attribute namespace and DAC protection on file:
	- Attribute names beginning with '$' are in the system namespace
	- The attribute name "$" is reserved
	- System namespace attributes may only be read/set by suser()
	  or by kernel (cred == NULL)
	- Other attribute names are in the application namespace
	- The attribute name "" is reserved
	- Application namespace attributes are protected in the manner
	  of the target file permission

o Kernel changes
	- Add ufs_extattr_valid_attrname() to check whether the requested
	  attribute "set" or "enable" is appropriate (i.e., non-reserved)
	- Modify ufs_extattr_credcheck() to accept target file vnode, not
	  to take inode uid
	- Modify ufs_extattr_credcheck() to check namespace, then enforce
	  either kernel/suser for system namespace, or vaccess() for
	  application namespace
o EA backing file format changes
	- Remove permission fields from extended attribute backing file
	  header
	- Bump extended attribute backing file header version to 3
o Update extattrctl.c and extattrctl.8
	- Remove now deprecated -r and -w arguments to initattr, as
	  permissions are now implicit
	- (unrelated) fix error reporting and unlinking during failed
	  initattr to remove duplicate/inaccurate error messages, and to
	  only unlink if the failure wasn't in the backing file open()

Obtained from:	TrustedBSD Project
2000-09-02 20:31:26 +00:00
Robert Watson
aa1d263e0c o Other half of Sheldon's patch to fix initattr arguments, mistakenly
forgotten due to minimal sleep.  Thanks!

Submitted by:	sheldonh
2000-07-12 12:04:02 +00:00
Robert Watson
581e97c5c7 o update extattrctl man page to reflect obligatory arguments to initattr
-r and -w arguments

Submitted by:	sheldonh
2000-07-12 11:50:08 +00:00
Robert Watson
3b88d2796e o Correct getopt() argument so that initattr -r and -w take an additional
argument via optarg.  This corrects a segfault when initattr is invoked
  with either of these two arguments.  Not sure how this got broken given
  that in the original patches it was fine -- presumably a merging
  mistake.

Obtained from:	TrustedBSD Project
2000-07-12 02:20:16 +00:00
Sheldon Hearn
77f6aff1a4 Minor mdoc markup fixes.
Reviewed by:	maintainer
2000-05-10 14:50:44 +00:00
Robert Watson
6c50ada1bd o Update extattrctl.8 to reflect new initattr -p, -r, and -w options.
o Update extattrctl.c to default new attributes to readable and writable
  only by the kernel and root user.  Previously the default was to allow
  the file owner to directory view and manipulate the attributes, which
  is probably an inappropriate default.
2000-04-20 20:32:43 +00:00
Robert Watson
2a60effdd8 o Allow the ``-p'' argument to be specified to initattr, which indicates
that space for extended attributes should be preallocated, instead of
  using a sparse attribute file.  NOTE: This can result in a really
  large file full of zeros.  However, it can prevent a low disk condition
  from causing an attribute write to fail, which is good for security and
  consistency attributes.

o Unlink the attribute file during initattr if an error occurs -- this is
  alright, as we specify O_CREAT when opening the file.
2000-04-20 18:31:00 +00:00
Robert Watson
7036b7cd31 o Update initattr to add magic numbers and version number 2000-04-19 20:13:34 +00:00
Chris Costello
eb569950b2 Change "FreeBSD 5.0" to ".Fx 5.0" 2000-04-16 01:43:11 +00:00
Robert Watson
9754f5b65b Introduced /usr/sbin/extattrctl, a utility for managing UFS/FFS extended
attributes (recently committed).  Using extattrctl, the extended attribute
service may be started and stopped for specific file systems; specific
attributes may be enabled or disabled, and the backing file for each
attribute configured.  Also, backing files may be initialized.

Reviewed by:    adrian, bp, freebsd-fs, the unthanked masses
Obtained from:  TrustedBSD
2000-04-15 05:14:39 +00:00