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       audit2allow  -  generate SELinux policy allow/dontaudit rules from logs
       of denied operations

       audit2why - translates SELinux audit messages into a description of why
       the access was denied (audit2allow -w)


       audit2allow [options]


       -a | --all
              Read input from audit and message log, conflicts with -i

       -b | --boot
              Read input from audit messages since last boot conflicts with -i

       -d | --dmesg
              Read input from output  of  /bin/dmesg.   Note  that  all  audit
              messages are not available via dmesg when auditd is running; use
              "ausearch -m avc | audit2allow"  or "-a" instead.

       -D | --dontaudit
              Generate dontaudit rules (Default: allow)

       -h | --help
              Print a short usage message

       -i  <inputfile> | --input <inputfile>
              read input from <inputfile>

       -l | --lastreload
              read input only after last policy reload

       -m <modulename> | --module <modulename>
              Generate module/require output <modulename>

       -M <modulename>
              Generate loadable module package, conflicts with -o

       -o <outputfile> | --output <outputfile>
              append output to <outputfile>

       -r | --requires
              Generate require output syntax for loadable modules.

       -N | --noreference
              Do not generate reference policy, traditional style allow rules.
              This is the default behavior.

       -R | --reference
              Generate reference policy using installed macros.  This attempts
              to match denials against interfaces and may be inaccurate.

       -w | --why
              Translates SELinux audit messages into a description of why  the
              access was denied

       -v | --verbose
              Turn on verbose output


       This  utility scans the logs for messages logged when the system denied
       permission for operations, and generates  a  snippet  of  policy  rules
       which,  if  loaded  into policy, might have allowed those operations to
       succeed. However, this utility only  generates  Type  Enforcement  (TE)
       allow  rules.   Certain  permission  denials may require other kinds of
       policy changes, e.g. adding an  attribute  to  a  type  declaration  to
       satisfy  an existing constraint, adding a role allow rule, or modifying
       a constraint.  The audit2why(8) utility may be  used  to  diagnose  the
       reason when it is unclear.

       Care  must  be  exercised while acting on the output of this utility to
       ensure that the operations being  permitted  do  not  pose  a  security
       threat.  Often it is better to define new domains and/or types, or make
       other structural changes to narrowly allow an optimal set of operations
       to  succeed,  as  opposed  to  blindly implementing the sometimes broad
       changes recommended by this utility.   Certain permission  denials  are
       not  fatal  to  the  application, in which case it may be preferable to
       simply suppress logging of the denial via  a  'dontaudit'  rule  rather
       than an 'allow' rule.


       NOTE: These examples are for systems using the audit package. If you do
       not use the audit package, the AVC messages will be in /var/log/messages.
       Please substitute /var/log/messages for /var/log/audit/audit.log in the

       Using audit2allow to generate monolithic (non-module) policy
       $ cd /etc/selinux/$SELINUXTYPE/src/policy
       $ cat /var/log/audit/audit.log | audit2allow >> domains/misc/local.te
       $ cat domains/misc/local.te
       allow cupsd_config_t unconfined_t:fifo_file { getattr ioctl };
       <review domains/misc/local.te and customize as desired>
       $ make load

       Using audit2allow to generate module policy

       $ cat /var/log/audit/audit.log | audit2allow -m local > local.te
       $ cat local.te
       module local 1.0;

       require {
               role system_r;

               class fifo_file {  getattr ioctl };

               type cupsd_config_t;
               type unconfined_t;

       allow cupsd_config_t unconfined_t:fifo_file { getattr ioctl };
       <review local.te and customize as desired>

       Building module policy manually

       # Compile the module
       $ checkmodule -M -m -o local.mod local.te
       # Create the package
       $ semodule_package -o local.pp -m local.mod
       # Load the module into the kernel
       $ semodule -i local.pp

       Using audit2allow to generate and build module policy
       $ cat /var/log/audit/audit.log | audit2allow -M local
       Generating type enforcment file: local.te
       Compiling policy: checkmodule -M -m -o local.mod local.te
       Building package: semodule_package -o local.pp -m local.mod

       ******************** IMPORTANT ***********************

       In order to load this newly created policy package into the kernel,
       you are required to execute

       semodule -i local.pp


       This manual page was written by Manoj Srivastava <>,
       for  the  Debian  GNU/Linux  system.  It  was  updated  by  Dan   Walsh

       The   audit2allow   utility  has  contributions  from  several  people,
       including Justin R. Smith and Yuichi Nakamura.  and Dan Walsh