framework/security/smack.git
10 years agoMerge branch 'v1.0.x' unused_upstream
Jarkko Sakkinen [Thu, 24 Apr 2014 05:08:37 +0000 (08:08 +0300)]
Merge branch 'v1.0.x'

Conflicts:
utils/smackctl.c

10 years agoMerge remote-tracking branch 'rafal-krypa/issue108' into v1.0.x
Jarkko Sakkinen [Thu, 24 Apr 2014 04:22:29 +0000 (07:22 +0300)]
Merge remote-tracking branch 'rafal-krypa/issue108' into v1.0.x

10 years agoutils: add options for version and usage information
Jarkko Sakkinen [Mon, 14 Apr 2014 22:37:21 +0000 (01:37 +0300)]
utils: add options for version and usage information

Added option -v/--version for displaying version information
and -h/--help for displaying usage information.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: fix smack_new_label_from_path() (regression in e6890752)
Rafal Krypa [Tue, 15 Apr 2014 15:24:19 +0000 (17:24 +0200)]
libsmack: fix smack_new_label_from_path() (regression in e6890752)

Function smack_new_label_from_path failed to null-terminate xattr value
before passing it to get_label.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Mon, 14 Apr 2014 22:24:00 +0000 (01:24 +0300)]
Merge branch 'v1.0.x'

10 years agoutils/smackaccess: added missing include libgen.h
Jarkko Sakkinen [Mon, 14 Apr 2014 22:09:00 +0000 (01:09 +0300)]
utils/smackaccess: added missing include libgen.h

libgen.h must be included for basename()

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Mon, 14 Apr 2014 21:22:21 +0000 (00:22 +0300)]
Merge branch 'v1.0.x'

10 years agoutils/chsmack: added missing include libgen.h
Jarkko Sakkinen [Mon, 14 Apr 2014 21:20:23 +0000 (00:20 +0300)]
utils/chsmack: added missing include libgen.h

libgen.h must be included for basename()

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoMerge pull request #105 from jobol/issue105
jsakkine [Sun, 30 Mar 2014 16:17:32 +0000 (19:17 +0300)]
Merge pull request #105 from jobol/issue105

libsmack: `verify_smackfs_mnt` wrongly expects smackfs to be writable

10 years agolibsmack: Removes checking smackfs isn't read only
José Bollo [Thu, 27 Mar 2014 14:47:02 +0000 (15:47 +0100)]
libsmack: Removes checking smackfs isn't read only

Assuming that smack is available only if the filesystem
smackfs is mounted without being set to read-only have
negative side effects on tools like 'id', 'ls', 'ps'.
In effect, these tools are using libsmack to detect
availability of Smack and to tune their output to
print contexts.

This fixes smack-team/smack#105

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Tue, 18 Mar 2014 06:49:28 +0000 (08:49 +0200)]
Merge branch 'v1.0.x'

10 years agolibsmack: fix smack_have_access() (regression in d7319c71)
Rafal Krypa [Mon, 17 Mar 2014 16:09:31 +0000 (17:09 +0100)]
libsmack: fix smack_have_access() (regression in d7319c71)

Commit d7319c71 introduced an internal function for opening smackfs files,
when there is a long and short label version. The new function always
opens the file write only, but smack_have access() requires O_RDWR.
The internal function is now extended to take argument with file access
mode.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: add function for policy loading at system startup
Rafal Krypa [Thu, 13 Mar 2014 17:40:44 +0000 (18:40 +0100)]
libsmack: add function for policy loading at system startup

New function smack_load_policy() is intended to be used by systemd for
policy loading at system startup. It reuses existing code from
utils/common.c, now moved to libsmack/common.c.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: add functions for setting and removing labels on files
Rafal Krypa [Thu, 20 Feb 2014 14:04:57 +0000 (15:04 +0100)]
libsmack: add functions for setting and removing labels on files

Jóse Bollo implemented two functions as part of this various
improvements for the chsmack command-line utility:

- smack_set_label_for_path() (see f1dfd85)
- smack_remove_label_for_path() (see 5da1a22)

Since they are generally useful, they should be part of the
API in libsmack 1.1.

This patch migrates these functions to libsmack and exports
the symbols. Also, the chsmack is modified to use the new API
instead of the internal functions.

[jsakkine: rewrote the patch description]

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Thu, 20 Feb 2014 11:35:38 +0000 (13:35 +0200)]
Merge branch 'v1.0.x'

Conflicts:
configure.ac
libsmack/Makefile.am
libsmack/libsmack.c

10 years agoChanged library version to 1.0.4
Jarkko Sakkinen [Thu, 20 Feb 2014 11:31:28 +0000 (13:31 +0200)]
Changed library version to 1.0.4

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoMerge remote-tracking branch 'rafal-krypa/issue51' into v1.0.x
Jarkko Sakkinen [Thu, 20 Feb 2014 11:27:18 +0000 (13:27 +0200)]
Merge remote-tracking branch 'rafal-krypa/issue51' into v1.0.x

10 years agoMerge remote-tracking branch 'jobol/issue94' into v1.0.x
Jarkko Sakkinen [Thu, 20 Feb 2014 11:27:06 +0000 (13:27 +0200)]
Merge remote-tracking branch 'jobol/issue94' into v1.0.x

10 years agolibsmack: avoid sprintf() when printing rules in long format
Rafal Krypa [Tue, 18 Feb 2014 11:16:50 +0000 (12:16 +0100)]
libsmack: avoid sprintf() when printing rules in long format

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: enable multi-line support for writing to load2 and change-rule
Rafal Krypa [Fri, 14 Feb 2014 14:22:53 +0000 (15:22 +0100)]
libsmack: enable multi-line support for writing to load2 and change-rule

Since Linux 3.12 Smack can handle multiple rules in single write when
loading policy. Libsmack will detect this support and group rules into
blocks of PAGE_SIZE-1 bytes at most. This results in much smaller number
of syscalls and faster loading of large policy.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoMerge remote-tracking branch 'jobol/addgen' into v1.0.x
Jarkko Sakkinen [Tue, 18 Feb 2014 08:34:05 +0000 (10:34 +0200)]
Merge remote-tracking branch 'jobol/addgen' into v1.0.x

10 years agotests: Improved version of generator
José Bollo [Fri, 14 Feb 2014 10:34:26 +0000 (11:34 +0100)]
tests: Improved version of generator

This version use a generating algorithm to ensure
the generator constraints. It has two new options:
- s=N to shuffle or sort the result
- p=N to set the percentage of modification rules

The Makefile now make optimisation and have warning detection.

The make_policies script now use the shuffle option.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agotests: Produce sorted policy with unique rule only
Jan Cybulski [Thu, 13 Feb 2014 09:41:26 +0000 (10:41 +0100)]
tests: Produce sorted policy with unique rule only

There is no need for tests of sorted policies with non unique rules.
If someone prepares sorted policy, redundancy of rules should also
be removed during sorting.

10 years agotests: Improved formating of code
José Bollo [Thu, 13 Feb 2014 08:31:06 +0000 (09:31 +0100)]
tests: Improved formating of code

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agotests: Adding a usage function.
José Bollo [Thu, 13 Feb 2014 08:18:01 +0000 (09:18 +0100)]
tests: Adding a usage function.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agotests: Adding some comments
José Bollo [Wed, 12 Feb 2014 17:31:20 +0000 (18:31 +0100)]
tests: Adding some comments

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agotests: Correcting exit codes
José Bollo [Wed, 12 Feb 2014 17:01:48 +0000 (18:01 +0100)]
tests: Correcting exit codes

The valid exit code are form 0 to 255. Then using -1 means that the
effective exit code will be 0377==255. It isn't accurate. The exit code
of 1 is merely very often used for failure status.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agotests: Renaming 'r' to 'alea'
José Bollo [Wed, 12 Feb 2014 15:16:24 +0000 (16:16 +0100)]
tests: Renaming 'r' to 'alea'

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agotests: Changing filenames
José Bollo [Wed, 12 Feb 2014 11:42:20 +0000 (12:42 +0100)]
tests: Changing filenames

Changing two filenames:
- tests/gen.c    becomes tests/generator.c
- tests/makefile becomes tests/Makefile

That is obviously better to have the main file of the program
`generator` named `generator.c`.

The default naming of makefiles is Makefile with a capital
letter. Conforming to that rule is better.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agotests: Change program generating test data
Jan Cybulski [Fri, 7 Feb 2014 13:58:52 +0000 (14:58 +0100)]
tests: Change program generating test data

-Change program to produce more parametrized output:
*Introduce parameters to set number of unique rules (u) and merges in policy (m).
*Introduce parametr for maximum number of reocurrances of a label in merged policy (L).
*Add possibility of getting list of labels from stdin in addition to generating random ones.
-Some minor style adjustments to libsmack coding style.

Also:
-Add makefile for policies generation
-Add script generating different type of policies

Signed-off-by: Jan Cybulski <j.cybulski@samsung.com>
10 years agodon't allocate memory in accesses_print
Rafal Krypa [Fri, 14 Feb 2014 10:41:07 +0000 (11:41 +0100)]
don't allocate memory in accesses_print

10 years agochange type of label_id back to int
Rafal Krypa [Fri, 14 Feb 2014 09:44:26 +0000 (10:44 +0100)]
change type of label_id back to int

10 years agolibsmack: merge rules with the same subject and object before applying them
Rafal Krypa [Thu, 13 Feb 2014 16:32:29 +0000 (17:32 +0100)]
libsmack: merge rules with the same subject and object before applying them

All rules with the same subject and object will be merged into a single one
before applying rules to kernel or writing them to a file. The result will
consist of smaller number of rules, but they will have the same semantics.
This enhances performance greatly when there are a lot of rules to merge.
The merging code has negligible overhead when there are no merges to
perform.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: change semantics of rule allow_code and deny_code
Rafal Krypa [Thu, 13 Feb 2014 13:22:19 +0000 (14:22 +0100)]
libsmack: change semantics of rule allow_code and deny_code

Fields in struct smack_rule are used to store either set or modify rule.
Set rules used to be distinguished by having deny_code = -1.
It is more convenient to have it differently: allow_code describing bits
that are to be set, deny_code describing bits that are to be cleared.
With that semantics access_code = ~deny_code for set rules. This enables
easy replacement of change rules that can be simplified to a set rule.
Thanks José Bollo for original idea about simplifying modify rules.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: reorganize rule lists for struct smack_accesses
Rafal Krypa [Thu, 13 Feb 2014 13:33:20 +0000 (14:33 +0100)]
libsmack: reorganize rule lists for struct smack_accesses

Until now rule list was implemented as single linked list of all rules
added into struct smack_accesses. This patch breaks this list into several
lists, with one list of rules per subject label.
Each element in array of labels describe single label and all rules when it's a
subject are added into this label's list.

This data structure is close to internal kernel data structures for Smack
rules. This allows for slightly better performance because rules are
grouped by subject.
More importantly though, this patch prepares ground for rule merging.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: shrink few rule and label struct fields
Rafal Krypa [Thu, 13 Feb 2014 13:16:40 +0000 (14:16 +0100)]
libsmack: shrink few rule and label struct fields

Use smaller struct fields to optimize memory usage and speed.
On a 32-bit machine this saves 4 bytes per rule and 4 bytes per label.
Limit label length to 8 bits. It's max value is already limited to 255.
Limit label id to 16 bits. While policy with more than 2^16 labels is
theoretically possible, it would be handled very badly by kernel.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: add possibility of resizing table of labels
Jan Cybulski [Tue, 28 Jan 2014 12:50:02 +0000 (13:50 +0100)]
libsmack: add possibility of resizing table of labels

Signed-off-by: Jan Cybulski <j.cybulski@samsung.com>
10 years agolibsmack: implement internal hash table of labels
Jan Cybulski [Tue, 28 Jan 2014 11:32:32 +0000 (12:32 +0100)]
libsmack: implement internal hash table of labels

Use hash table implemented internally for dictionary of labels.

Thanks to that some operations are more efficient:
-it is possible to use better hashing function than in hsearch:
 DJB2 algorithm is used, which is much better, than hashing function
 used in hsearch. Hashing function in hsearch causes, that on 32bit
 machines, all labels that have common first eight bytes,
 share same bucket and this cause many conflicts in combination of labels
 naming convention with domain-based prefixes. This leads to significant
 performance degradation in real system. This was not detected on tests
 so far, because labels for test policies were generated randomly.
-it is possible to calculate hash during label validation.
-it would not cause drastic complexity growth to have number of labels
 near to number of allocated buckets as it happens in hsearch.
-it would be possible to add number of labels exceeding number of
 allocated buckets.

Signed-off-by: Jan Cybulski <j.cybulski@samsung.com>
10 years agolibsmack: refactoring of label dictionary code
Rafal Krypa [Thu, 13 Feb 2014 13:07:00 +0000 (14:07 +0100)]
libsmack: refactoring of label dictionary code

Commit cd2ce11 introduced label dictionary, with hash table of labels
hidden behind an abstraction layer. This patch drops this layer and merges
the hash table with smack_accesses.
It will enable better handling of data, like storing and accessing
per-label data outside of dict_* functions.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: make local function accesses_add() static
Rafal Krypa [Thu, 13 Feb 2014 16:13:43 +0000 (17:13 +0100)]
libsmack: make local function accesses_add() static

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoAdding a program generating test data.
José Bollo [Wed, 5 Feb 2014 13:27:53 +0000 (14:27 +0100)]
Adding a program generating test data.

The program that generate this gen.c produces
a set of rules to be loaded to load/load2
file system interace of smacke. Or to be used
as input file for smackload.

The count of differents labels (option l=N) and of
different access rights (option r=N) can be specified.
The count of rules produced to the ouput can also
be specified (option o=N). By default, l=5, r=100 and o=500.

The generated labels are made of 4 to 7 random letters.
The standard C function 'rand' is used without seeding it;
what means that same options produces same results.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agoRemoved redundant AUTHORS files.
Jarkko Sakkinen [Mon, 3 Feb 2014 07:56:53 +0000 (09:56 +0200)]
Removed redundant AUTHORS files.

Git log is the AUTHORS file.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoFix bug in cipso written rules
José Bollo [Thu, 23 Jan 2014 10:04:50 +0000 (11:04 +0100)]
Fix bug in cipso written rules

The label (either short or long) was followed by a null character.
It is now followed by a space.

Note that the format for cipso2 smackfs is "%s?%4d%4d..."
where ? stands for any invalid label character.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
10 years agolibsmack: lazy initialization for SmackFS mount point
Jarkko Sakkinen [Tue, 28 Jan 2014 07:39:03 +0000 (09:39 +0200)]
libsmack: lazy initialization for SmackFS mount point

Mount SmackFS only when it is first needed. This enables init
daemons to directly use libsmack.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: close smackfs_mnt_dirfd in the library destructor
Jarkko Sakkinen [Tue, 28 Jan 2014 06:30:39 +0000 (08:30 +0200)]
libsmack: close smackfs_mnt_dirfd in the library destructor

Close smackfs_mnt_dirfd in the library destructor. Although kernel
would wipe it anyway it is a good practice to clean up all the
reserved resources.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoMerge remote-tracking branch 'jsakkine/issue83' into v1.0.x
Jarkko Sakkinen [Thu, 23 Jan 2014 12:54:39 +0000 (14:54 +0200)]
Merge remote-tracking branch 'jsakkine/issue83' into v1.0.x

Conflicts:
libsmack/libsmack.c

10 years agolibsmack: fallback to 'cipso' when 'cipso2' is not available
Jarkko Sakkinen [Mon, 13 Jan 2014 08:13:30 +0000 (10:13 +0200)]
libsmack: fallback to 'cipso' when 'cipso2' is not available

This patch implements fallback to 'cipso' when 'cipso2' is not
available. This is a regression from 79f8e26.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: add a common function for opening long and short label file
Jarkko Sakkinen [Mon, 13 Jan 2014 07:57:05 +0000 (09:57 +0200)]
libsmack: add a common function for opening long and short label file

Added internal function 'open_smackfs_file()' to open long label
file and as a fallback short label file. This can be used for
load, access and cipso files.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: fix: fail if neither 'load' and 'load2' cannot be opened
Jarkko Sakkinen [Mon, 13 Jan 2014 07:45:42 +0000 (09:45 +0200)]
libsmack: fix: fail if neither 'load' and 'load2' cannot be opened

accesses_apply() continued even if neither 'load' and 'load2' could
not be opened. For 'change-rule' file such semantics do make sense
for backwards compatibility but there's something seriously wrong
if neither 'load' and 'load2' cannot be opened. That's why the only
right thing to do is to stop immediately.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: fix: 'accesses_print' declaration was in wrong place
Jarkko Sakkinen [Mon, 13 Jan 2014 07:39:48 +0000 (09:39 +0200)]
libsmack: fix: 'accesses_print' declaration was in wrong place

Moved 'accesses_print' declaration to a proper location.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoutils: fix error message in smackaccess
Jarkko Sakkinen [Fri, 10 Jan 2014 18:05:49 +0000 (20:05 +0200)]
utils: fix error message in smackaccess

perror() reports success when validation fails. This patch makes
the error message explicit. Invalid input is the most probable case.
Also, error message is prefixed with the basename of the utility.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agolibsmack: fixed label validation in smack_have_access()
Jarkko Sakkinen [Fri, 10 Jan 2014 18:05:13 +0000 (20:05 +0200)]
libsmack: fixed label validation in smack_have_access()

This patch adds subject and object validation to smack_have_access().
It also validates that labels are at most 23 characters when only
short labels are available.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
10 years agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Fri, 10 Jan 2014 17:33:59 +0000 (19:33 +0200)]
Merge branch 'v1.0.x'

10 years agolibsmack: use 16 bits for smack access codes instead of sizeof(int) * 2
Rafal Krypa [Tue, 7 Jan 2014 15:25:32 +0000 (16:25 +0100)]
libsmack: use 16 bits for smack access codes instead of sizeof(int) * 2

There are 6 access bits to be stored in the access field. Special value -1
is used to distinguish set rules from change rules. Shrinking the filed to
8 bits still leaves space for one more future access bit.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: change logic for detecting long labels in smack_accesses
Rafal Krypa [Tue, 7 Jan 2014 15:21:32 +0000 (16:21 +0100)]
libsmack: change logic for detecting long labels in smack_accesses

Instead of storing label length in each smack_rule, have one integer in
smack_accesses to remember if long labels are used.
This saves few bytes per rule.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoMerge remote-tracking branch 'rafal-krypa/issue73' into v1.0.x
Jarkko Sakkinen [Tue, 7 Jan 2014 07:10:54 +0000 (09:10 +0200)]
Merge remote-tracking branch 'rafal-krypa/issue73' into v1.0.x

10 years agoUpdate .gitignore files to ignore all build-time generated files
Rafal Krypa [Sun, 5 Jan 2014 23:13:47 +0000 (00:13 +0100)]
Update .gitignore files to ignore all build-time generated files

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: use common code for smack_accesses_apply() and smack_accesses_save().
Rafal Krypa [Thu, 2 Jan 2014 12:52:17 +0000 (13:52 +0100)]
libsmack: use common code for smack_accesses_apply() and smack_accesses_save().

Centralizing code that changes internal smack_accesses representation to
text. Internal function accesses_print() now generates output for applying
the rules to kernel and saving them to a file. This allows easier changes
to data structures used by libmskack and makes the code shorter.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: use common code for smack_accesses_add() and smack_accessess_add_modify()
Rafal Krypa [Tue, 31 Dec 2013 20:14:24 +0000 (21:14 +0100)]
libsmack: use common code for smack_accesses_add() and smack_accessess_add_modify()

These API functions were very similar and are now implemented as wrappers
to a single internal function. This allows easier changes to data structures
used by libmskack and makes the code shorter.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoutils: use common code for apply_rules and apply_cipso
Rafal Krypa [Tue, 31 Dec 2013 20:11:35 +0000 (21:11 +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_path(). The common function can
handle both directory and single file,  so apply_rules_file() and
apply_cipso_file() are dropped.
The resulting code is 69 lines shorter and keeps directory traversal logic
in single place. It's side effect is applying CIPSO rules in one shot, just
like regular Smack rules.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agolibsmack: don't define __GNU_SOURCE in the code
Rafal Krypa [Tue, 31 Dec 2013 17:04:56 +0000 (18:04 +0100)]
libsmack: don't define __GNU_SOURCE in the code

__GNU_SOURCE is a glibc internal and should not be used directly.
It was already provided by AC_USE_SYSTEM_EXTENSIONS in configure.ac, so
it can be safely dropped.
Use more explicit AC_GNU_SOURCE in configure.ac instead (on Linux systems
they should be equivalent).

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoutils: fix build warnings related to smack_smackfs_path()
Rafal Krypa [Tue, 31 Dec 2013 15:08:43 +0000 (16:08 +0100)]
utils: fix build warnings related to smack_smackfs_path()

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoCompile for the C99 standard.
Rafal Krypa [Tue, 31 Dec 2013 15:07:55 +0000 (16:07 +0100)]
Compile for the C99 standard.

The code already uses C99 constructs, but appropriate compiler options
were not set.

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoautogen.sh: fix passing arguments to configure
Rafal Krypa [Tue, 31 Dec 2013 15:03:17 +0000 (16:03 +0100)]
autogen.sh: fix passing arguments to configure

Fixing error when arguments to autogen.sh contain white space, i.e.:
./autogen.sh CFLAGS='-Wall -Wextra'

Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
10 years agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Fri, 20 Dec 2013 08:03:40 +0000 (10:03 +0200)]
Merge branch 'v1.0.x'

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 agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Fri, 20 Dec 2013 08:01:37 +0000 (10:01 +0200)]
Merge branch 'v1.0.x'

10 years agochsmack: updating to the branch master
José Bollo [Thu, 19 Dec 2013 12:00:09 +0000 (13:00 +0100)]
chsmack: updating to the branch master

The function smack_label_length is available as a library
function provided by libsmack. It is better to use it for
validating labels instead of redefining it in chsmack.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
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 agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Wed, 18 Dec 2013 19:40:47 +0000 (21:40 +0200)]
Merge branch 'v1.0.x'

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 agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Wed, 18 Dec 2013 19:09:25 +0000 (21:09 +0200)]
Merge branch 'v1.0.x'

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 agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Tue, 10 Dec 2013 11:20:45 +0000 (13:20 +0200)]
Merge branch 'v1.0.x'

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 agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Tue, 10 Dec 2013 11:06:46 +0000 (13:06 +0200)]
Merge branch 'v1.0.x'

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 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>
(cherry picked from commit d6f8c52011013f536b7171c2d1f3e9c5ecfaf2f9)

10 years agoRevert "libsmack: clean up redundant stuff"
Jarkko Sakkinen [Mon, 9 Dec 2013 13:08:23 +0000 (15:08 +0200)]
Revert "libsmack: clean up redundant stuff"

This reverts commit d6f8c52011013f536b7171c2d1f3e9c5ecfaf2f9.

10 years agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Mon, 9 Dec 2013 13:07:07 +0000 (15:07 +0200)]
Merge branch 'v1.0.x'

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 agoMerge branch 'v1.0.x'
Jarkko Sakkinen [Thu, 5 Dec 2013 18:41:58 +0000 (20:41 +0200)]
Merge branch 'v1.0.x'

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>
(cherry picked from commit d6f8c52011013f536b7171c2d1f3e9c5ecfaf2f9)