framework/security/smack.git
10 years agoMerge remote-tracking branch 'rafal-krypa/issue84' into v1.0.x
Jarkko Sakkinen [Fri, 20 Dec 2013 08:02:38 +0000 (10:02 +0200)]
Merge remote-tracking branch 'rafal-krypa/issue84' into v1.0.x

10 years agoutils: drop build dependency on libattr, introduced by 5da1a22.
Rafal Krypa [Wed, 18 Dec 2013 23:01:38 +0000 (00:01 +0100)]
utils: drop build dependency on libattr, introduced by 5da1a22.

Use only glibc headers for xattr functions. Use ENODATA instead of ENOATTR.

10 years agolibsmack: fix label validation in smack_new_label_from_path
Jarkko Sakkinen [Wed, 18 Dec 2013 20:02:06 +0000 (22:02 +0200)]
libsmack: fix label validation in smack_new_label_from_path

Off-by-one length was returned from the function. This patch fixes
the regression by doing full validation for the SMACK label.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoAvoid memory allocation while opening smackfs files.
Rafal Krypa [Tue, 3 Dec 2013 14:58:57 +0000 (15:58 +0100)]
Avoid memory allocation while opening smackfs files.

Using openat() on pre-opened smackfs directory eliminates need to
construct absolute path to a smackfs file before opening it.

Other than it improves availability because file descriptor is kept
open to the mount point throughout the life-cycle of the process.
And it also improves security because as long as the file descriptor
is valid, files really come from SmackFS.

[jsakkine: updated commit message]

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoAdd dictionary for labels
Jan Cybulski [Tue, 3 Dec 2013 08:43:41 +0000 (09:43 +0100)]
Add dictionary for labels

Add dictionary for labels to avoid memory allocation
for the same label for multilple times.
Dictionary is common to all labels in a single rules set.
Each rule only keeps ids of labels in a dictionary
instead of whole label as a string.

Signed-off-by: Jan Cybulski <j.cybulski@samsung.com>
10 years agolibsmack: fix a bug in validation of labels
José Bollo [Tue, 17 Dec 2013 12:25:47 +0000 (13:25 +0100)]
libsmack: fix a bug in validation of labels

The function `get_label` didn't handle the characters below
' ' and above '~' correctly.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: update of the manual
José Bollo [Tue, 17 Dec 2013 10:49:44 +0000 (11:49 +0100)]
chsmack: update of the manual

This new version of the manual includes the options
the dereferencing symbolic links and for removing
smack's labels.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: refusing repeated labels
José Bollo [Tue, 10 Dec 2013 14:33:13 +0000 (15:33 +0100)]
chsmack: refusing repeated labels

Refusing to set many time a label is important for
security. If a label is set more than one time, wich
label is to use? Wich is the good?

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: add option to remove labels
José Bollo [Tue, 10 Dec 2013 14:29:14 +0000 (15:29 +0100)]
chsmack: add option to remove labels

Adding that option allow chsmack to remove the smack labels.
It is really important to have it.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: split option scan in two parts
José Bollo [Tue, 10 Dec 2013 14:22:15 +0000 (15:22 +0100)]
chsmack: split option scan in two parts

It prepares the futur option to remove smack labels.
It also separate the validation of the labels what can
improve the readability of the code.

Also add a check that the option transmute isn't repeated.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: using flags for labels
José Bollo [Tue, 10 Dec 2013 14:11:41 +0000 (15:11 +0100)]
chsmack: using flags for labels

That modification prepare the addition of the option
to remove Smack labels. It seems also best to be agnostic
on what are valid smack labels (and rely on libsmack in the
futur) that maybe one day could be empty strings!

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: checking transmute on directories
José Bollo [Tue, 10 Dec 2013 14:01:58 +0000 (15:01 +0100)]
chsmack: checking transmute on directories

The transmute flag is meaningfull only on directories.
The program now check that the transmute flag is set
only on directories.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: add dereference option
José Bollo [Tue, 10 Dec 2013 13:47:27 +0000 (14:47 +0100)]
chsmack: add dereference option

Add the options that allow to follow the symbolic
links instead of modifying it. There is no really
need but it may help.

The text of the short option is moved.
It prepares to scan options in two passes. It also
centralize the definition of options, avoiding to have
many lines between the definitions.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: exchanging order of nested blocks if/for
José Bollo [Tue, 10 Dec 2013 13:46:18 +0000 (14:46 +0100)]
chsmack: exchanging order of nested blocks if/for

Prepare to add the removing of labels and also reduce
the count of tests.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: use of 'smack_set_label_for_path'
José Bollo [Tue, 10 Dec 2013 13:43:32 +0000 (14:43 +0100)]
chsmack: use of 'smack_set_label_for_path'

To prepare to the future libsmack that will have a function
for writing Smack labels and to prepare to the handling of
symbolic links, the write of the labels is put in the
function 'smack_set_label_for_path'.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: use of 'smack_new_label_from_path'
José Bollo [Tue, 10 Dec 2013 13:37:31 +0000 (14:37 +0100)]
chsmack: use of 'smack_new_label_from_path'

The library libsmack offer a function for reading
Smack labels. It is better to use the function of the
library.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: validation of labels
José Bollo [Tue, 10 Dec 2013 13:26:40 +0000 (14:26 +0100)]
chsmack: validation of labels

To prepare to the future of libsmack (that will include the
validation function 'smack_label_length'), the validation
of the smack labels is separated from the main function.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: put usage string at head
José Bollo [Tue, 10 Dec 2013 13:13:23 +0000 (14:13 +0100)]
chsmack: put usage string at head

Setting it at head is a reading improvement for
developpers that can quickly show the usage of the
program. It also makes the main function more readable.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agochsmack: using linux constants for Smack's names
José Bollo [Tue, 10 Dec 2013 13:10:23 +0000 (14:10 +0100)]
chsmack: using linux constants for Smack's names

It is better to rely on the centralisation of names in a
single file: it can avoid errors.

The declarations of <linux/xattr.h> contains the definitions
of the names of the Smack's security attributes.

As Smack only runs on Linux and libsmack doesn't provides
a centralized version of the names of the security attributes
(because it were not needed), using the linux header seems
to be a good choice.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agotests: starting point for stress testing
Jarkko Sakkinen [Tue, 10 Dec 2013 11:19:02 +0000 (13:19 +0200)]
tests: starting point for stress testing

This starting point for stress testing. Generates 200 files each
with 10000 random access rules. Does not yet support modify rules.
Next step would be probably making this more parametrized.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoFix return value of 'smack_new_label_from_path'
José Bollo [Tue, 10 Dec 2013 09:23:37 +0000 (10:23 +0100)]
Fix return value of 'smack_new_label_from_path'

Change-Id: Ic5412e9555a64a81bf1a871b30844d73dbed5758
Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agoRevert "utils: use common code for apply_rules and apply_cipso"
Jarkko Sakkinen [Mon, 9 Dec 2013 13:05:27 +0000 (15:05 +0200)]
Revert "utils: use common code for apply_rules and apply_cipso"

This reverts commit 68e38ff3936597a3189d29f57a68dae5ac08db1e.

10 years agoBumped version to 1.0.3.
Jarkko Sakkinen [Thu, 5 Dec 2013 18:48:19 +0000 (20:48 +0200)]
Bumped version to 1.0.3.

10 years agoutils: use common code for apply_rules and apply_cipso
Rafal Krypa [Wed, 4 Dec 2013 15:58:53 +0000 (16:58 +0100)]
utils: use common code for apply_rules and apply_cipso

Code for apply_rules() has been rewritten to use opendir() and readdir(),
but apply_cipso() remained implemented with nftw().
This patch implements both applying functions with opendir() and readdir()
using a common internal function apply_dir().
The resulting code is 45 lines shorter and keeps directory traversal logic
in single place.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: clean up redundant stuff
Jarkko Sakkinen [Thu, 5 Dec 2013 18:18:02 +0000 (20:18 +0200)]
libsmack: clean up redundant stuff

Cleaned up redundant constants and code. Grouped related constants
nearby each other.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: add support for new access mode for setting locks ("l")
Rafal Krypa [Mon, 22 Jul 2013 17:05:09 +0000 (19:05 +0200)]
libsmack: add support for new access mode for setting locks ("l")

This change should be backward compatible for kernels without l-mode support
as long as requested permissions don't contain this mode.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoutils: common.c: invalid fprintf()
Jarkko Sakkinen [Thu, 5 Dec 2013 17:26:01 +0000 (19:26 +0200)]
utils: common.c: invalid fprintf()

fprintf() has path parameter that was not utilized.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoutils: apply access rules to load/load2 in one shot
Jarkko Sakkinen [Thu, 28 Nov 2013 23:09:22 +0000 (01:09 +0200)]
utils: apply access rules to load/load2 in one shot

Open load/load2 only once. Inside the callback only collect rules
using smack_accessed_add_from_file(). Finally, apply access rules
in a single slot.

This was inspired by feedback from Rafal Krypa <r.krypa@samsung.com>.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoDo not silently ignore files when applying them in smackload/ctl
Jarkko Sakkinen [Tue, 3 Dec 2013 16:22:55 +0000 (18:22 +0200)]
Do not silently ignore files when applying them in smackload/ctl

Detect unknown file types and non-regular files and fail if they
are found with proper error reporting.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoMerge remote-tracking branch 'jsakkine/issue60' into v1.0.x
Jarkko Sakkinen [Mon, 2 Dec 2013 17:34:51 +0000 (19:34 +0200)]
Merge remote-tracking branch 'jsakkine/issue60' into v1.0.x

10 years agoMerge remote-tracking branch 'rafal-krypa/issue70' into v1.0.x
Jarkko Sakkinen [Mon, 2 Dec 2013 16:22:49 +0000 (18:22 +0200)]
Merge remote-tracking branch 'rafal-krypa/issue70' into v1.0.x

10 years agosmackctl: fix reporting "unknown action" (regression in ce452ab)
Rafal Krypa [Mon, 2 Dec 2013 14:04:37 +0000 (15:04 +0100)]
smackctl: fix reporting "unknown action" (regression in ce452ab)

Running "smackctl apply" and "smackctl clear" ended with error and
message about unknown action, although the action was known and
performed successfully.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: fix smack_cipso_apply() failing with more than one rule
Rafal Krypa [Mon, 2 Dec 2013 15:03:28 +0000 (16:03 +0100)]
libsmack: fix smack_cipso_apply() failing with more than one rule

Fixing regression in f47b9c90 that causes smack_cipso_apply() to fail due
to a typo.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: remove redundant check for clear flag form accesses_apply()
Jarkko Sakkinen [Sun, 1 Dec 2013 15:03:55 +0000 (17:03 +0200)]
libsmack: remove redundant check for clear flag form accesses_apply()

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: remove redundant strlen() call from accesses_apply()
Jarkko Sakkinen [Sun, 1 Dec 2013 15:01:42 +0000 (17:01 +0200)]
libsmack: remove redundant strlen() call from accesses_apply()

Return value of snprintf() should give the same length as strlen()
would given that string fits into buffer.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: check in accesses_apply() that rule has short labels
Jarkko Sakkinen [Sun, 1 Dec 2013 14:51:04 +0000 (16:51 +0200)]
libsmack: check in accesses_apply() that rule has short labels

Check rule has short labels when only 'load' is available.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoMerge remote-tracking branch 'rafal-krypa/issue68' into v1.0.x
Jarkko Sakkinen [Mon, 2 Dec 2013 06:33:00 +0000 (08:33 +0200)]
Merge remote-tracking branch 'rafal-krypa/issue68' into v1.0.x

10 years agolibsmack: early fail in accesses_apply() if modify rules are not supported
Jarkko Sakkinen [Sun, 1 Dec 2013 14:43:14 +0000 (16:43 +0200)]
libsmack: early fail in accesses_apply() if modify rules are not supported

In accesses_apply(), in the beginning of each iteration, check
that change_fd is a valid file descriptor if the current rule
is a modify rule. Return with -1 immediately if that is not the
case.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: parse whole access type string, not only first 5 bytes.
Rafal Krypa [Thu, 3 Jan 2013 09:34:34 +0000 (10:34 +0100)]
libsmack: parse whole access type string, not only first 5 bytes.

Previous version of this function parsed only first ACC_LEN (5)
characters of access_type. Now the whole string will be read.

This will prevent silent ignoring of access type characters in cases
like "-rwxat" or "rrwxat".

Re-applying because it was reverted by d2283792.

10 years agolibsmack: fixed segfault in get_label() (regression in 66483b)
Rafal Krypa [Fri, 29 Nov 2013 19:42:25 +0000 (20:42 +0100)]
libsmack: fixed segfault in get_label() (regression in 66483b)

Commit 66483b introduced segfault in API functions smack_revoke_subject()
and smack_set_label_for_self().
Fix the accidental NULL pointer dereference.

10 years agoMerge remote-tracking branch 'jsakkine/issue64' into v1.0.x
Jarkko Sakkinen [Thu, 28 Nov 2013 16:04:12 +0000 (18:04 +0200)]
Merge remote-tracking branch 'jsakkine/issue64' into v1.0.x

10 years agolibsmack: fixed apply_accesses() (regression in d2283792)
Jarkko Sakkinen [Thu, 28 Nov 2013 15:49:47 +0000 (17:49 +0200)]
libsmack: fixed apply_accesses() (regression in d2283792)

Took accesses_apply() from 8fd0167 and converted it mechanically
as possible to use the changed struct smack_rule. Now smackload
works succesfully for a single file too. Mistake I did in
d2283792 was that I unncessarily cleaned up accesses_apply()
at the same time as changing things. My bad.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoisgx: fix: clear flag for directory parameter in smackload/smackctl
Jarkko Sakkinen [Wed, 27 Nov 2013 22:03:06 +0000 (00:03 +0200)]
isgx: fix: clear flag for directory parameter in smackload/smackctl

Clear flag was not properly applied when directory is given
for smackload. This patch fixes the issue. I decided to move
into opendir/readdir approach because nftw() does not support
supplying any kind of state to the callback. The end result
looks also more manageable that we had before.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agodebian: enable parallel build.
Rafal Krypa [Thu, 21 Nov 2013 12:42:24 +0000 (13:42 +0100)]
debian: enable parallel build.

Support `dpkg-buildpackage -j' by adding --parallel to dh invocations.

10 years agodebian: convert for multi-arch packages.
Rafal Krypa [Fri, 3 May 2013 12:04:51 +0000 (14:04 +0200)]
debian: convert for multi-arch packages.

10 years agodebian: add build dependency on doxygen.
Rafal Krypa [Fri, 22 Nov 2013 09:45:45 +0000 (10:45 +0100)]
debian: add build dependency on doxygen.

Make sure that devel manuals will be generated for libsmack-dev package.

10 years agolibsmack: revert access codes
Jarkko Sakkinen [Tue, 26 Nov 2013 19:02:05 +0000 (21:02 +0200)]
libsmack: revert access codes

Revert access codes as internal representation for access types
because they work much better when we have to merge rules.

Other aim of this patch is to clean up internal presentation.
After this change the whole access state can be represented
with only two integers.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoutils: more verbose error reporting when applying rules
Jarkko Sakkinen [Mon, 25 Nov 2013 13:08:20 +0000 (15:08 +0200)]
utils: more verbose error reporting when applying rules

Add more verbose error reporting when applying either access
rules or CIPSO. The key point is to be able to separate whether
error occured during reading or applying phase.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoFix memory leak on smack_cipso
Zofia Abramowska [Fri, 22 Nov 2013 09:38:06 +0000 (10:38 +0100)]
Fix memory leak on smack_cipso

smack_cipso_free() didn't release main pointer, which was
inconsistent with header description and further usage in
apply_cipso_file().
(cherry picked from commit 6304f9a3f73312a7feb3b25fa593919744acb947)

10 years agoutils: fix CIPSO error messages in common.c
Jarkko Sakkinen [Thu, 21 Nov 2013 18:50:37 +0000 (20:50 +0200)]
utils: fix CIPSO error messages in common.c

When applying CIPSO fails use different error message than when
applying access rules. Additionally, fixed indentation for lines
printing error message that are over 80 characters long.
(cherry picked from commit 43b5e8da94acba1f790eb65b4256ba6013397dde)

10 years agodoc: show version
Jarkko Sakkinen [Thu, 21 Nov 2013 15:36:35 +0000 (17:36 +0200)]
doc: show version

Fix documentation to show correct package version.
(cherry picked from commit 399e3a662c0ddb81cae94804a96416ae856e7507)

10 years agodoc: fix parallel build, broken by c5e2007.
Rafal Krypa [Thu, 21 Nov 2013 12:40:08 +0000 (13:40 +0100)]
doc: fix parallel build, broken by c5e2007.

Parallel make failed, because dependencies were not properly specified
for all auto generated man pages.
(cherry picked from commit d9e0abc8657dc1ee5aab391af4543a7cd1c9d757)

10 years agodebian: fix package build, broken by c5e2007.
Rafal Krypa [Thu, 21 Nov 2013 11:47:26 +0000 (12:47 +0100)]
debian: fix package build, broken by c5e2007.

Auto generated manpages are in different locations than static ones, so
libsmack-dev.manpages needs to be modified.
It now includes all generated section 3 manuals.
(cherry picked from commit b3b70c21b75cc5e92d7334406557a8f49d0b4714)

10 years agoGenerate API documentation by using Doxygen.
Jarkko Sakkinen [Tue, 19 Nov 2013 20:34:02 +0000 (22:34 +0200)]
Generate API documentation by using Doxygen.

Generate API documentation from smack.h by using Doxygen so that
documentation needs to be maintained only in one place.
(cherry picked from commit c5e200768a99451c559570b0a44673a8ecd5ee7f)

Conflicts:

doc/Makefile.am
doc/smack_have_access.3

10 years agoSolve problem with "make distcheck" breaking on systemd config files.
Rafal Krypa [Wed, 20 Nov 2013 11:47:26 +0000 (12:47 +0100)]
Solve problem with "make distcheck" breaking on systemd config files.

Dist packages created by "make dist" were built without smack.mount and
smack.service files. This caused the packages to fail to build.
Adding the files to EXTRA_DIST solves the problem.
(cherry picked from commit 73ec7d5be2c87bf13dbd45f2cb8433122b1bd08d)

10 years agoCopy labels using get_label()
Jarkko Sakkinen [Tue, 19 Nov 2013 13:07:17 +0000 (15:07 +0200)]
Copy labels using get_label()

Copy and validate labels in a single transaction:

- No trust for having '\0' in the src buffer when copying
  labels.
- Improves performance by combining length calculation, validation
  and copying.
(cherry picked from commit 16f84d57e2766f1ccfd59ae77fad407b6cc5ff81)

10 years agoHelper function get_label()
Jarkko Sakkinen [Tue, 19 Nov 2013 11:49:37 +0000 (13:49 +0200)]
Helper function get_label()

The helper function ssize_t get_label(char *dest, const char *src)
validates the given label and copies it to the dest buffer if
available.
(cherry picked from commit 09fdff9a456dec54a4c8548c9b9acbcbce48d59a)

10 years agoUse strncpy() always copying labels.
Jarkko Sakkinen [Mon, 18 Nov 2013 16:04:03 +0000 (18:04 +0200)]
Use strncpy() always copying labels.

Defence in depth and a good practice. Places an absolute limit
to the length copied.
(cherry picked from commit 0eee8f8b3efd153c5ef09c08244e189f0cda51a4)

10 years agoFixed copyright clauses.
Jarkko Sakkinen [Thu, 14 Nov 2013 15:29:05 +0000 (17:29 +0200)]
Fixed copyright clauses.

Checked that copyright notices are properly set up as according to:

http://www.gnu.org/licenses/gpl-howto.html

Corrected where they are not. Note that one or two-line fixes do not
count as copyrightable assets.

Additionally, fixed a minor indentation issue in chsmack.c.
(cherry picked from commit 7b41f3cff96755146539f74a8c780ac9bbe71b36)

10 years agoRegression fix: don't modify smack_accesses while applying the rules.
Rafał Krypa [Thu, 14 Nov 2013 23:58:22 +0000 (00:58 +0100)]
Regression fix: don't modify smack_accesses while applying the rules.

Regression introduced in eaf908fd caused access_type field to be modified,
when smack_accesses_apply() is called with clear set to true.

This patch reverts that, restoring invariant that smack_accessess_apply()
doesn't modify given rule set.
(cherry picked from commit 74f5b5c21a2ed9c0576c3c3ab3802d11d66098a9)

10 years agoFix man pages
Jarkko Sakkinen [Wed, 30 Oct 2013 13:52:19 +0000 (15:52 +0200)]
Fix man pages

Regression from 1edba54.
(cherry picked from commit e6f32e4403ad549102cfbdbd02b4dcd254da84d2)

10 years agoUse smack_label_length() internally instead strnlen()
Janusz Kozerski [Mon, 28 Oct 2013 13:28:59 +0000 (14:28 +0100)]
Use smack_label_length() internally instead strnlen()

Use smack_label_length() to check correctness labels instead strnlen().
(cherry picked from commit 6d3fd3049e08377f75b554cedcd200286fbf359c)

10 years agoFix value returned by smack_label_length()
Janusz Kozerski [Mon, 28 Oct 2013 13:44:05 +0000 (14:44 +0100)]
Fix value returned by smack_label_length()

In some cases smack_label_length have returned 0 on incorrect label.
Now smack_label_length() always returns -1 in case of incorrect label.
(cherry picked from commit f7e4232a319b269f6214af660173eebaa605ad9e)

10 years agoRemove errno assignments
Jarkko Sakkinen [Fri, 25 Oct 2013 13:06:28 +0000 (16:06 +0300)]
Remove errno assignments

If we want to report something libsmack specific, then we should
have our own error codes. By using errno values to report libsmack
specific error condition we almost zero their value. By removing
these assignment you can resolved from a changed errno value that
a system call failed.

This patch does not break API contract as use of errno values is
undefined in the API documentation.
(cherry picked from commit 1edba541de63b088a60d89e4a0433bf9149c4b13)

10 years agoRemoved smack_label_length() API
Jarkko Sakkinen [Fri, 25 Oct 2013 12:46:56 +0000 (15:46 +0300)]
Removed smack_label_length() API

In order to use this smack_label_length() in 1.0 branch, this patch
takes it away from the API. Adds temporarily unused attribute to the
function siganture.

10 years agoAdd smack_label_length() function
Janusz Kozerski [Wed, 2 Oct 2013 07:52:23 +0000 (09:52 +0200)]
Add smack_label_length() function

Kernel does not validate the Smack label - instead the label will be
cut on the first incorrect character (after parsing at least one
correct character).

This function gives the user possibility to verify the correctness
of the Smack label before use and calculate labels length.

Additionally, all string length calculations are replaces with this
function to make implementation safer.

[jarkko.sakkinen@linux.intel.com:
 did some modifications:
 - smack_is_label_valid() -> smack_label_length()
 - libsmack.c:
   * return length
   * loop invariant had off-by-one error
   * cosmetic: "++i" not "i++"
 - libsmack.h:
   * updated documentation
   * cosmetic: formatting errors in  @param and @return]
(cherry picked from commit 8b083a8c67219c5d1dbfbf2ad1082c1954f9c9fa)

10 years agoCleaning error logs for rules applying utilities
Zofia Abramowska [Tue, 6 Aug 2013 13:42:33 +0000 (15:42 +0200)]
Cleaning error logs for rules applying utilities

Removed perror logs from main utilities files. Moved error logs
inside /utils/common.c. Errors are logged from I/O operations and
applying rules/cipso from files.
(cherry picked from commit bcaf9018f41809cb93aaccf9e9fb49b59750dc7e)

10 years agoAdd parameter name back to the chsmack error message
Jarkko Sakkinen [Tue, 22 Oct 2013 19:26:26 +0000 (22:26 +0300)]
Add parameter name back to the chsmack error message

This patch add parameter name back to the error message. Instead
of relaying on hazardous longindex parameter of getopt_long(), a
look-up table is constructed to map short option to the corresponding
struct option entry.

Additionally, the basename of the application is added to the error
message. Also usage message is converted to use basename instead of
the full path name.
(cherry picked from commit d98a04ff7ccbcfcf36d9d4d43de68448b70da9fa)

10 years agoutils/chsmack: fix hazardous option parsing
José Bollo [Mon, 21 Oct 2013 10:18:50 +0000 (12:18 +0200)]
utils/chsmack: fix hazardous option parsing

The variable option_index was only set to a proper value if the
given option is a long option. There was also exit() missing on
error condition if SMACK label was invalid.

This patch removes option_index, parameter name from corresponding
error message and adds exit() call when the error condition
realizes.

[jarkko.sakkinen@linux.intel.com: rewrote patch description]
(cherry picked from commit 18ebc2fe71da94599e45029d7b26144c6bbe7cb4)

10 years agoFix: accept 255 character labels
Jarkko Sakkinen [Mon, 21 Oct 2013 16:21:42 +0000 (19:21 +0300)]
Fix: accept 255 character labels

Example:

 # /home/jsakkine/devel/smack/utils/chsmack \
   -a$(printf '12345%.0s' {1..51}) foo
 foo: Invalid argument
 # /home/jsakkine/devel/smack/utils/chsmack \
   -a$(printf '12345%.0s' {1..51} | head -c -1) foo
 #

This patch fixes this issue.
(cherry picked from commit 1794fed08418b0e254e1e3a7325a8a67f8186bbc)

10 years agoChange apply_cipso_cb() to use proper apply_cipso_file()
Zofia Abramowska [Tue, 8 Oct 2013 14:24:24 +0000 (16:24 +0200)]
Change apply_cipso_cb() to use proper apply_cipso_file()

apply_cipso_cb() used improper apply_rules_file(). Changed this to
call apply_cipso_file() instead.
(cherry picked from commit d45ffe9082243377cdba9a2d224bab0e110501e0)

10 years agoFix: allow CIPSO labels with zero categories
Jarkko Sakkinen [Tue, 8 Oct 2013 13:17:23 +0000 (16:17 +0300)]
Fix: allow CIPSO labels with zero categories

There was false restriction in smack_cipso_add_from_file() that
disallowed CIPSO labels without categories.

For example, this example given in the SMACK kernel documentation
should be perfectly legal:

TopSecret 7
(cherry picked from commit 4e4ea9142727ca7f14bf1d64cd81949b28bb1d0b)

10 years agoDocumented order in which access rules are applied to kernel.
Jarkko Sakkinen [Wed, 2 Oct 2013 08:07:59 +0000 (11:07 +0300)]
Documented order in which access rules are applied to kernel.
(cherry picked from commit f82cadf3b7a9d84ae0bf2aa06fb8ecff9b4332dc)

10 years agoFixes for doxygen errors coming from 3810596.
Jarkko Sakkinen [Wed, 2 Oct 2013 05:49:02 +0000 (08:49 +0300)]
Fixes for doxygen errors coming from 3810596.

Doxygen errors that are regression from 3810596. Went in because
I forgot to install doxygen into my test environment.
(cherry picked from commit 8ef1846c05d32a92b23538ee491fd31350c2a045)

10 years agolibsmack: clean up smack_accesses_add_modify()
Jarkko Sakkinen [Wed, 2 Oct 2013 05:38:59 +0000 (08:38 +0300)]
libsmack: clean up smack_accesses_add_modify()

This patch makes smack_accesses_add_modify() easier to follow by
changing variable names bit more self-documentative and less easier
to mix up with adding and deleting rules. This patch also fixes some
very minor coding style errors.

Also documentation of this function is cleaned up.
(cherry picked from commit 22c98dd03e352057b23f8d8d2d9ad252175c685b)

10 years agoCleaned up init code.
Jarkko Sakkinen [Tue, 1 Oct 2013 23:56:06 +0000 (02:56 +0300)]
Cleaned up init code.

There was lot of clutter and misleading comments in the code
and some minor coding convention issues. This patch cleans up
init.c for the most part.
(cherry picked from commit c59864f9d4a67dcf76ba01d9c4db2b12fada6339)

10 years agoUpdate configure.ac version and mainter information
Jarkko Sakkinen [Wed, 2 Oct 2013 17:41:16 +0000 (20:41 +0300)]
Update configure.ac version and mainter information

Update version to 1.0.2 and maintaer email from @intel.com
to @linux.intel.com.

10 years agoSet revision for v1.0.2 release
Jarkko Sakkinen [Wed, 2 Oct 2013 17:33:06 +0000 (20:33 +0300)]
Set revision for v1.0.2 release

This was forgotten to set for v1.0.1. My apologies.
Setting this early on so will not be forgotten when
v1.0.2 is tagged.

10 years agoMajor documentation cleanup.
Jarkko Sakkinen [Mon, 30 Sep 2013 13:18:32 +0000 (16:18 +0300)]
Major documentation cleanup.

smack.h was starting to rotten so I did a major cleanup for it.
Also fixed couple of minor doxygen issues by removing deprecated
variables.

10 years agoRemoved redundant is_smackfs_mounted().
Jarkko Sakkinen [Mon, 30 Sep 2013 11:56:34 +0000 (14:56 +0300)]
Removed redundant is_smackfs_mounted().

This functionality is fully handled in the library initialization.

10 years agoRevert "Avoid memory allocation while opening smackfs files."
Jarkko Sakkinen [Mon, 30 Sep 2013 11:32:31 +0000 (14:32 +0300)]
Revert "Avoid memory allocation while opening smackfs files."

This reverts commit 0426039bffdb82b0f7974639c1c1e361929b1cd5.

10 years agoAvoid memory allocation while opening smackfs files.
Rafal Krypa [Mon, 22 Jul 2013 09:22:30 +0000 (11:22 +0200)]
Avoid memory allocation while opening smackfs files.

Using openat() on pre-opened smackfs directory eliminates need to construct
absolute path to a smackfs file before opening it.

10 years agoPrevent potentially unterminated buffers while adding rule to the list
Rafal Krypa [Fri, 16 Aug 2013 08:48:56 +0000 (10:48 +0200)]
Prevent potentially unterminated buffers while adding rule to the list

Functions smack_accesses_add() and smack_accesses_add_modify() don't check
length of arguments subject and object. These arguments are used as source
for strncpy(), which can cause labels to be truncated.

But the length argument for strncpy() is too large. This might cause
rule->subject or rule->object to be not terminated by null character.
It can happen when these functions are called from outside libsmack.
It can also happen while parsing files in smack_accesses_add_from_file(),
because that function doesn't validate subject and object too.

This commit fixes the problem by checking arguments in smack_accesses_add()
and smack_accesses_add_modify(). After checking strcpy() is safe for
copying them.

11 years agoAdded AUTHORS file.
Jarkko Sakkinen [Tue, 18 Jun 2013 06:37:42 +0000 (09:37 +0300)]
Added AUTHORS file.

11 years agoCleaned up command line arguments handling in chsmack.
Jarkko Sakkinen [Mon, 17 Jun 2013 21:59:01 +0000 (00:59 +0300)]
Cleaned up command line arguments handling in chsmack.

Argument handling code looks terrible at the moment in chsmack.
Migrated to getopt_long().

11 years agoRemoved doc/smackd.8 from debian/smack-utils.manpages
Jarkko Sakkinen [Sun, 16 Jun 2013 12:13:57 +0000 (15:13 +0300)]
Removed doc/smackd.8 from debian/smack-utils.manpages

11 years agoLIBSMACK -> LIBSMAC_1.0 in libsmack.sym
Jarkko Sakkinen [Sun, 16 Jun 2013 12:10:56 +0000 (15:10 +0300)]
LIBSMACK -> LIBSMAC_1.0 in libsmack.sym

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
11 years agoAdded smackctl back.
Jarkko Sakkinen [Sun, 16 Jun 2013 12:06:57 +0000 (15:06 +0300)]
Added smackctl back.

Added smackctl back because Debian needs it.

11 years agoDocumentation fixes
Jarkko Sakkinen [Thu, 13 Jun 2013 05:34:47 +0000 (08:34 +0300)]
Documentation fixes

* Added doc/smack_new_label_from_path.3.
* Fixed doxygen warnings from smack.h.

11 years agoRemoved smackd and smackctl.
Jarkko Sakkinen [Thu, 13 Jun 2013 04:22:32 +0000 (07:22 +0300)]
Removed smackd and smackctl.

For shell usage smackload is enough so we don't want to be these as
part of the 1.0 release. systemd has built-in support for loading
SMACK rules.

11 years agoMerge pull request #12 from rafal-krypa/samsung
jarkkos [Sat, 8 Jun 2013 08:02:50 +0000 (01:02 -0700)]
Merge pull request #12 from rafal-krypa/samsung

Use xattr.h from libc, not from libattr.

11 years agosmack_new_label_from_path fix: removed const specifier
Jarkko Sakkinen [Mon, 3 Jun 2013 16:48:33 +0000 (19:48 +0300)]
smack_new_label_from_path fix: removed const specifier

Label parameter had const specifier by mistake.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
11 years agoAdded missing smack_new_label_from_path symbol to libsmack.sym
Jarkko Sakkinen [Mon, 3 Jun 2013 08:52:05 +0000 (11:52 +0300)]
Added missing smack_new_label_from_path symbol to libsmack.sym

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
11 years agoReturn length of the label on success in smack_new_label_from*
Jarkko Sakkinen [Mon, 3 Jun 2013 08:31:02 +0000 (11:31 +0300)]
Return length of the label on success in smack_new_label_from*

Return length of the label on success and negative value on
failure.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
11 years agofix: smack_new_from_path() follow parameter
Jarkko Sakkinen [Mon, 3 Jun 2013 08:20:16 +0000 (11:20 +0300)]
fix: smack_new_from_path() follow parameter

Mistake in smack_new_from_path(). When follow is true getxattr()
should be called and lgetxattr() otherwise.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
11 years agoUse xattr.h from libc, not from libattr.
Rafal Krypa [Fri, 31 May 2013 05:49:42 +0000 (14:49 +0900)]
Use xattr.h from libc, not from libattr.

This fixes include in libsmack.c introduced in commit f409c17.

11 years agoAdded follow parameter to smack_new_label_from_path()
Jarkko Sakkinen [Mon, 27 May 2013 06:54:19 +0000 (09:54 +0300)]
Added follow parameter to smack_new_label_from_path()

Added follow parameter to smack_new_label_from_path() so that it
is useful for coreutils commands.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
11 years agoAdded function smack_label_from_path()
Jarkko Sakkinen [Tue, 21 May 2013 03:24:46 +0000 (20:24 -0700)]
Added function smack_label_from_path()

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
11 years agoFinalized cipso API.
Jarkko Sakkinen [Tue, 21 May 2013 02:50:25 +0000 (19:50 -0700)]
Finalized cipso API.

Aligned cipso API with accesses API so that they have same style.
Added documenation comments for cipso API.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
11 years agoMerge pull request #11 from rafal-krypa/samsung
jarkkos [Tue, 14 May 2013 11:28:42 +0000 (04:28 -0700)]
Merge pull request #11 from rafal-krypa/samsung

Samsung