Commit Graph

14 Commits

Author SHA1 Message Date
Nicolas Iooss
3c85f9f1a0 libselinux: include errno.h instead of sys/errno.h
Building with musl libc leads to some build errors:

    setrans_client.c: In function ‘receive_response’:
    setrans_client.c:147:19: error: implicit declaration of function
    ‘readv’ [-Werror=implicit-function-declaration]
      while (((count = readv(fd, resp_hdr, 3)) < 0) && (errno == EINTR)) ;
                       ^~~~~

and:

    In file included from matchpathcon.c:10:0:
    /usr/include/sys/errno.h:1:2: error: #warning redirecting incorrect
    #include <sys/errno.h> to <errno.h> [-Werror=cpp]
     #warning redirecting incorrect #include <sys/errno.h> to <errno.h>
      ^

Fix the first one by including <sys/uio.h> and the second one by using
<errno.h> instead of <sys/errno.h>.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
2017-01-09 16:00:22 -05:00
William Roberts
e4f2bcce24 libselinux/utils: fix all the noreturn errors
When building with clang, multiple noreturn issues arise,
for instance:

selabel_partial_match.c:11:1: error: function 'usage' could be declared with attribute 'noreturn' [-Werror,-Wmissing-noreturn]

Fix these.

Signed-off-by: William Roberts <william.c.roberts@intel.com>
2016-11-01 17:29:49 -04:00
Stephen Smalley
9eb9c93275 Get rid of security_context_t and fix const declarations.
In attempting to enable building various part of Android with -Wall -Werror,
we found that the const security_context_t declarations in libselinux
are incorrect; const char * was intended, but const security_context_t
translates to char * const and triggers warnings on passing
const char * from the caller.   Easiest fix is to replace them all with
const char *.  And while we are at it, just get rid of all usage of
security_context_t itself as it adds no value - there is no true
encapsulation of the security context strings and callers already
directly use string functions on them.  typedef left to permit
building legacy users until such a time as all are updated.

This is a port of Change-Id I2f9df7bb9f575f76024c3e5f5b660345da2931a7
from Android, augmented to deal with all of the other code in upstream
libselinux and updating the man pages too.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Eric Paris <eparis@redhat.com>
2014-02-19 16:11:48 -05:00
Dan Walsh
7fe6036ca5 Add selinux_set_policy_root sets an alternate policy root directory path
This allows us to specify under which the compiled policy file and context configuration
files exist. We can use this with matchpathcon to check the labels under alternate policies,
and we can use it for sepolicy manpage to build manpages during policy build.
2013-10-24 13:58:37 -04:00
Eric Paris
1db01640ee libselinux: matchpathcon: add -m option to force file type check
We may want to force matchpathcon to respond if the path is question is
a dir, sockfile, chr, blk, etc.  Add an option so you can force it to
hit the right rule types.

Signed-off-by: Eric Paris <eparis@redhat.com>
2012-09-12 14:23:22 -04:00
Daniel P. Berrange
5f8ce37021 libselinux: Fix const-ness of parameters & make usage() methods static
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
2012-03-28 14:52:12 -04:00
Eric Paris
bedd2a8dc4 libselinux: utils: matchpathcon: remove duplicate declaration
We declare rc both for a function and inside a stanze.  We only need it in the
stanze so remove the declaration for the whole function.

Signed-off-by: Eric Paris <eparis@redhat.com>
2011-09-16 11:54:03 -04:00
Richard Haines
bc1a8e2a4a libselinux: selinux_file_context_verify function returns wrong value.
selinux_file_context_verify(3) should now return the correct codes and
matchpathcon(8) has been modified to handle them.

The selinux_file_context_verify(3)and selinux_file_context_cmp(3) man pages
have also been updated (re-written really) to correct return codes.

I found that selabel_open left errno set to ENOENT because a
file_contexts.subs file did not exist on my system, but left selabel_open
alone and set errno = 0 before calling selinux_filecontext_cmp.

[fix uninitialize init variable in matchpathcon.c::main - eparis]
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
2011-08-26 14:27:51 -04:00
Eric Paris
7df397d3d9 libselinux: move realpath helper to matchpathcon library
Instead of only doing path simplification and symlink following for the
matchpathcon helper instead do it in the library potion.  This was an
issue when in python some called selinux.matchpatchcon("//lib64", 0) and
got the wrong answer (because the // wasn't being dealt with)

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
2011-08-26 14:27:37 -04:00
Eric Paris
4ad1896954 libselinux: resolv symlinks and dot directories before matching paths
matchpathcon cannot handle ./ or ../ in pathnames and doesn't do well
with symlinks.  This patch uses the glibc function realpath() to try to
determine a real path with resolved symlinks and dot directories.  For
example before this pach we would see:

$ matchpathcon /tmp/../eric
/tmp/../eric	<<none>>
$ matchpathcon /eric
/eric	system_u:object_r:default_t:s0

Whereas after the path we get the same results.  The one quirk with the
patch is that we need special code to make sure that realpath() does not
follow a symlink if it is the final component.  aka if we have a symlink
from /eric to /tmp/eric we do not want to resolv to /tmp/eric.  We want
to just resolv to the actual symlink /eric.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
2011-08-11 23:35:48 -04:00
Daniel J Walsh
00f0d550d5 Author: Daniel J Walsh
Email: dwalsh@redhat.com
Subject: refpolicy: nsalibselinux_utils_matchpathcon.c changes
Date: Tue, 07 Jul 2009 12:30:52 -0400

--text follows this line--

Signed-off-by: Joshua Brindle <method@manicmethod.com>
2009-09-28 16:17:23 -04:00
Daniel J Walsh
93a680280f Author: Daniel J Walsh
Email: dwalsh@redhat.com
Subject: Patch matchpathcon to eliminate file "/"
Date: Wed, 04 Mar 2009 15:39:31 -0500

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

So

matchpathcon /etc/
Will work the same as
matchpathcon /etc
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org

iEYEARECAAYFAkmu5wMACgkQrlYvE4MpobNK4gCgiVeXXEZcCMsJKXM7jqh6r1u3
OScAoLcmXBIR63gpvA8RS3g07pcPC6IF
=e+Re
-----END PGP SIGNATURE-----

Signed-off-by: Chad Sellers <csellers@tresys.com>
2009-04-10 11:33:23 -04:00
Joshua Brindle
86562db50a Author: Daniel J Walsh
Email: dwalsh@redhat.com
Subject: matchpathcon -V does not always work as expected.
Date: Tue, 30 Sep 2008 08:54:18 -0400

matchpathcon -V should be passing the mode when checking whether the
file context on a file is correct.

Signed-off-by: Joshua Brindle <method@manicmethod.com>
2008-10-14 07:33:19 -04:00
Joshua Brindle
13cd4c8960 initial import from svn trunk revision 2950 2008-08-19 15:30:36 -04:00