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commit: 15b6b45542f2faee92ba7168ec7df8e8098b71b2 |
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Author: Sven Vermeulen <sven.vermeulen <AT> siphos <DOT> be> |
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AuthorDate: Sun Apr 29 14:20:17 2012 +0000 |
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Commit: Sven Vermeulen <sven.vermeulen <AT> siphos <DOT> be> |
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CommitDate: Sun Apr 29 14:20:17 2012 +0000 |
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URL: http://git.overlays.gentoo.org/gitweb/?p=proj/hardened-docs.git;a=commit;h=15b6b455 |
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|
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Update with 20120217 related material |
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|
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--- |
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xml/selinux/hb-intro-concepts.xml | 11 +++- |
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xml/selinux/hb-using-install.xml | 35 +++-------- |
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xml/selinux/hb-using-policies.xml | 119 ++++++++++++++++++++++++++++++++++++- |
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xml/selinux/hb-using-states.xml | 24 +++++++- |
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4 files changed, 157 insertions(+), 32 deletions(-) |
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|
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diff --git a/xml/selinux/hb-intro-concepts.xml b/xml/selinux/hb-intro-concepts.xml |
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index 5d4470e..bc6f4c1 100644 |
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--- a/xml/selinux/hb-intro-concepts.xml |
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+++ b/xml/selinux/hb-intro-concepts.xml |
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@@ -7,8 +7,8 @@ |
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<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/proj/en/hardened/selinux/hb-intro-concepts.xml,v 1.4 2011/06/07 19:46:52 klondike Exp $ --> |
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|
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<sections> |
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-<version>5</version> |
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-<date>2011-07-21</date> |
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+<version>6</version> |
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+<date>2012-04-29</date> |
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|
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<section> |
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<title>Introduction</title> |
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@@ -81,6 +81,13 @@ development focuses mainly on <e>strict</e> and <e>mcs</e>. The |
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that the <e>mls</e> policy is currently not fit yet for production use. |
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</p> |
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|
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+<note> |
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+To clear up some confusion, especially when trying to seek support outside |
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+Gentoo: our "strict" implementation is not what was "strict" up to the year |
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+2008. The old meaning of strict involved a different implementation of the |
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+policy. |
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+</note> |
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+ |
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</body> |
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</subsection> |
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</section> |
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|
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diff --git a/xml/selinux/hb-using-install.xml b/xml/selinux/hb-using-install.xml |
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index a806009..037877e 100644 |
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--- a/xml/selinux/hb-using-install.xml |
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+++ b/xml/selinux/hb-using-install.xml |
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@@ -7,8 +7,8 @@ |
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<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/proj/en/hardened/selinux/hb-using-install.xml,v 1.4 2011/06/07 19:46:52 klondike Exp $ --> |
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|
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<sections> |
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-<version>20</version> |
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-<date>2012-04-10</date> |
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+<version>21</version> |
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+<date>2012-04-29</date> |
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|
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<section> |
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<title>Installing Gentoo (Hardened)</title> |
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@@ -91,6 +91,10 @@ Make sure to include layman's <path>make.conf</path> in your |
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</body> |
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</subsection> |
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--> |
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+<!-- |
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+TODO Validate after 2.20120215-r8 is stable that this is no longer |
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+necessary? Not sure about it though : check userspace ebuilds as well. |
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+--> |
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<subsection> |
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<title>Switching to Python 2</title> |
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<body> |
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@@ -273,19 +277,6 @@ tools or configurations that apply. |
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</p> |
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|
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<ul> |
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- <!-- |
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- TODO When 2.20120215-r5 or higher is stabilized, the LVM change is not needed |
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- anymore |
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- --> |
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- <li> |
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- If you use LVM for one or more file systems, you need to edit |
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- <path>/lib/rcscripts/addons/lvm-start.sh</path> (or <path>/lib64/..</path>) |
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- and <path>lvm-stop.sh</path> and set the config location from |
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- <path>/dev/.lvm</path> to <path>/etc/lvm/lock</path>. Next, create the |
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- <path>/etc/lvm/lock</path> directory. Finally, add |
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- <path>/lib(64)/rcscripts/addons</path> to <c>CONFIG_PROTECT</c> in your |
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- <path>make.conf</path> file. |
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- </li> |
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<li> |
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Check if you have <path>*.old</path> files in <path>/bin</path>. If you do, |
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either remove those or make them a copy of their counterpart so that they |
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@@ -411,8 +402,8 @@ Next, edit <path>/etc/fstab</path> and add the following two lines: |
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|
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<pre caption="Enabling selinux-specific file system options"> |
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<comment># The udev mount is due to bug #373381</comment> |
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-udev /dev tmpfs rw,rootcontext=system_u:object_r:device_t,seclabel,nosuid,relatime,size=10m,mode=755 0 0 |
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-none /selinux selinuxfs defaults 0 0 |
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+udev /dev tmpfs rw,rootcontext=system_u:object_r:device_t,seclabel,nosuid,relatime,size=10m,mode=755 0 0 |
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+none /sys/fs/selinux selinuxfs defaults 0 0 |
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</pre> |
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|
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<note> |
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@@ -420,14 +411,6 @@ In case of an MLS/MCS policy, you need to have the context with sensitivity |
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level, so <c>...:device_t:s0</c>. |
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</note> |
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|
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-<p> |
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-Make the <path>/selinux</path> mountpoint as well: |
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-</p> |
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- |
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-<pre caption="Creating the /selinux mountpoint"> |
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-~# <i>mkdir /selinux</i> |
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-</pre> |
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- |
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</body> |
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</subsection> |
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<subsection> |
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@@ -436,7 +419,7 @@ Make the <path>/selinux</path> mountpoint as well: |
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|
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<p> |
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With the above changes made, reboot your system. Assert yourself that you are |
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-now running a Linux kernel with SELinux enabled (the <path>/selinux</path> file |
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+now running a Linux kernel with SELinux enabled (the <path>/sys/fs/selinux</path> file |
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system should be mounted). Don't worry - SELinux is at this point not activated. |
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</p> |
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|
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|
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diff --git a/xml/selinux/hb-using-policies.xml b/xml/selinux/hb-using-policies.xml |
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index 4f76052..a67f20b 100644 |
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--- a/xml/selinux/hb-using-policies.xml |
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+++ b/xml/selinux/hb-using-policies.xml |
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@@ -7,8 +7,8 @@ |
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<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/proj/en/hardened/selinux/hb-using-commands.xml,v 1.3 2011/06/07 19:46:52 klondike Exp $ --> |
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|
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<sections> |
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-<version>3</version> |
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-<date>2012-03-01</date> |
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+<version>4</version> |
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+<date>2012-04-29</date> |
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|
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<section> |
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<title>SELinux Policy Language</title> |
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@@ -341,6 +341,121 @@ optional_policy(` |
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') |
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</pre> |
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|
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+<p> |
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+The following table shows a few common interfaces that could be in use. We |
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+seriously recommend to look at the available interfaces when enhancing or |
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+creating your own modules - and be sure to pick the interface that adds just |
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+what you need, nothing more. |
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+</p> |
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+ |
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+<table> |
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+<tr> |
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+ <th colspan="3">Templates</th> |
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+</tr> |
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+<tr> |
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+ <th>Suffix</th> |
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+ <th>Example</th> |
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+ <th>Description</th> |
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+</tr> |
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+<tr> |
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+ <ti>_template</ti> |
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+ <ti>virt_domain_template(prefix)</ti> |
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+ <ti> |
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+ Not really an interface, templates create additional domains based on the |
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+ information given to them. This is usually done for fine-grained policy |
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+ templates with a common (sub)set of privileges. |
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+ </ti> |
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+</tr> |
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+<tr> |
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+ <th colspan="3">Transformations</th> |
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+</tr> |
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+<tr> |
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+ <th>Suffix</th> |
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+ <th>Example</th> |
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+ <th>Description</th> |
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+</tr> |
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+<tr> |
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+ <ti></ti> |
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+ <ti>miscfiles_cert_type(resource)</ti> |
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+ <ti> |
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+ Transformation interfaces generally add specific attributes to resources or |
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+ domains. Attributes "transform" the given resource into something more. In |
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+ the given example, the miscfiles_cert_type(resource) assigns the cert_type |
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+ attribute to the resource (and also marks it as a file). Interfaces, like |
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+ miscfiles_read_all_certs work on these attributes. |
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+ </ti> |
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+</tr> |
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+<tr> |
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+ <th colspan="3">Access interfaces</th> |
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+</tr> |
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+<tr> |
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+ <th>Suffix</th> |
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+ <th>Example</th> |
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+ <th>Description</th> |
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+</tr> |
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+<tr> |
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+ <ti>_<access>_<resource></ti> |
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+ <ti>mta_getattr_spool(domain)</ti> |
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+ <ti> |
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+ Grant the specified domain access towards the shown resource. The resource |
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+ usually defines the type too (like kudzu_getattr_exec_files: grant getattr |
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+ on the kudzu_exec_t files) unless it is obvious from the name, or when the |
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+ resource is a more specific term towards the domain. It can also include |
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+ dontaudit (like mta_dontaudit_getattr_spool). |
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+ </ti> |
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+</tr> |
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+<tr> |
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+ <ti>_exec</ti> |
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+ <ti>dmesg_exec(domain)</ti> |
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+ <ti> |
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+ Grant one domain the right to execute the given domains' executable file (in |
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+ the example, allow "domain" to execute dmesg_exec_t files), but without |
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+ implying that the domains transition. In other words, dmesg gets executed |
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+ but still confined by the privileges of the source domain. |
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+ </ti> |
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+</tr> |
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+<tr> |
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+ <ti>_domtrans</ti> |
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+ <ti>dmesg_domtrans(domain)</ti> |
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+ <ti> |
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+ Grant one domain execute and transition privileges towards the new domain. |
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+ This interface is most commonly used to allow application domains to |
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+ transition to another. In the given example, dmesg is ran with the |
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+ privileges of the dmesg_t domain. |
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+ </ti> |
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+</tr> |
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+<tr> |
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+ <ti>_run</ti> |
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+ <ti>netutils_run(domain, role)</ti> |
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+ <ti> |
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+ Grant a given role and domain the rights to execute and transition towards |
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+ the given domain. This is usually granted to (existing) user roles and |
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+ domains and gives them the set of privileges needed to interact safely with |
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+ the new (interactive) domain (such as terminal access). |
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+ </ti> |
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+</tr> |
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+<tr> |
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+ <ti>_role</ti> |
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+ <ti>xserver_role(role, domain)</ti> |
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+ <ti> |
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+ Allow the given role and domain the necessary permissions to transition and |
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+ interact with the given domain. This interface is enhanced with the |
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+ privileges to interact with the domain (and its underlying files) more |
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+ thoroughly, and is usually assigned to newly created users or roles within |
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+ the policy (rather than enhance existing user domains and roles). |
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+ </ti> |
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+</tr> |
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+<tr> |
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+ <ti>_admin</ti> |
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+ <ti>aide_admin(domain)</ti> |
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+ <ti> |
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+ Grant the given domain the rights to administer the target domains' |
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+ environment. This usually involves privileges to manage and relabel all |
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+ affiliated files, directories, sockets, etc. |
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+ </ti> |
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+</tr> |
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+</table> |
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+ |
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</body> |
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</subsection> |
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</section> |
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|
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diff --git a/xml/selinux/hb-using-states.xml b/xml/selinux/hb-using-states.xml |
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index 9e99d9c..ee7f8e1 100644 |
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--- a/xml/selinux/hb-using-states.xml |
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+++ b/xml/selinux/hb-using-states.xml |
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@@ -7,8 +7,8 @@ |
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<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/proj/en/hardened/selinux/hb-using-commands.xml,v 1.3 2011/06/07 19:46:52 klondike Exp $ --> |
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|
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<sections> |
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-<version>1</version> |
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-<date>2011-10-15</date> |
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+<version>2</version> |
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+<date>2012-04-29</date> |
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|
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<section> |
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<title>SELinux States</title> |
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@@ -191,6 +191,26 @@ in the order given above: |
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|
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</body> |
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</subsection> |
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+<subsection> |
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+<title>Domain-permissive Mode</title> |
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+<body> |
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+ |
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+<p> |
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+You can also opt to mark a single domain permissive while running the rest of |
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+the system in an enforcing state. For instance, to mark mplayer_t as a |
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+permissive domain (which means that SELinux does not enforce anything): |
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+</p> |
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+ |
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+<pre caption="Marking mplayer_t as permissive"> |
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+# <i>semanage permissive -a mplayer_t</i> |
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+</pre> |
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+ |
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+<p> |
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+With the <c>-d</c> option, you can remove the permissive mark again. |
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+</p> |
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+ |
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+</body> |
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+</subsection> |
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</section> |
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|
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<section> |
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