From: dsugar@tresys.com (David Sugar)
Date: Wed, 6 Dec 2017 14:38:49 +0000
Subject: [refpolicy] [PATCH 1/1-v2] Create interfaces to write xserver log
	files.
Message-ID: <CO1PR15MB1032BA3C31A1CD2A7F89AF56B9320@CO1PR15MB1032.namprd15.prod.outlook.com>
To: refpolicy@oss.tresys.com
List-Id: refpolicy.oss.tresys.com

Add interfaces to grant write only access to inherited xserver_log_t and xsession_log_t files.

Signed-off-by: Dave Sugar <dsugar@tresys.com>
---
 policy/modules/services/xserver.if | 39 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/policy/modules/services/xserver.if b/policy/modules/services/xserver.if
index e70046db..3a435abf 100644
--- a/policy/modules/services/xserver.if
+++ b/policy/modules/services/xserver.if
@@ -1058,6 +1058,26 @@ interface(`xserver_xsession_spec_domtrans',`

 ########################################
 ## <summary>
+##     Write to inherited  xsession log
+##     files such as .xsession-errors.
+## </summary>
+## <param name="domain">
+##     <summary>
+##     Domain allowed access.
+##     </summary>
+## </param>
+#
+interface(`xserver_write_inherited_xsession_log',`
+       gen_require(`
+               type xsession_log_t;
+       ')
+
+       allow $1 xsession_log_t:file { append write };
+')
+
+
+########################################
+## <summary>
 ##      Read and write xsession log
 ##      files such as .xsession-errors.
 ## </summary>
@@ -1096,6 +1116,25 @@ interface(`xserver_manage_xsession_log',`

 ########################################
 ## <summary>
+##     Write to inherited X server log
+##  files like /var/log/lightdm/lightdm.log
+## </summary>
+## <param name="domain">
+##     <summary>
+##     Domain allowed access.
+##     </summary>
+## </param>
+#
+interface(`xserver_write_inherited_log',`
+       gen_require(`
+               type xserver_log_t;
+       ')
+
+       allow $1 xserver_log_t:file { append write };
+')
+
+########################################
+## <summary>
 ##      Get the attributes of X server logs.
 ## </summary>
 ## <param name="domain">
--
2.13.6
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