l2tpd_selinux(8)

1l2tpd_selinux(8)             SELinux Policy l2tpd             l2tpd_selinux(8)
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NAME

6       l2tpd_selinux - Security Enhanced Linux Policy for the l2tpd processes
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DESCRIPTION

9       Security-Enhanced Linux secures the l2tpd processes via flexible manda‐
10       tory access control.
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12       The l2tpd processes execute with the  l2tpd_t  SELinux  type.  You  can
13       check  if  you have these processes running by executing the ps command
14       with the -Z qualifier.
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16       For example:
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18       ps -eZ | grep l2tpd_t
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ENTRYPOINTS

23       The l2tpd_t SELinux type can be entered via the file_type, unlabeled_t,
24       proc_type,  filesystem_type,  l2tpd_exec_t,  mtrr_device_t, sysctl_type
25       file types.
26
27       The default entrypoint paths for the l2tpd_t domain are the following:
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29       all  files  on  the   system,   /usr/sbin/xl2tpd,   /usr/sbin/prol2tpd,
30       /usr/sbin/openl2tpd, /dev/cpu/mtrr
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PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
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36       You can see the context of a process using the -Z option to ps
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38       Policy governs the access confined processes have  to  files.   SELinux
39       l2tpd  policy is very flexible allowing users to setup their l2tpd pro‐
40       cesses in as secure a method as possible.
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42       The following process types are defined for l2tpd:
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44       l2tpd_t
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46       Note: semanage permissive -a l2tpd_t can be used to  make  the  process
47       type  l2tpd_t  permissive.  SELinux  does not deny access to permissive
48       process types, but the AVC (SELinux denials) messages are still  gener‐
49       ated.
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BOOLEANS

53       SELinux  policy  is customizable based on least access required.  l2tpd
54       policy is extremely flexible and has several booleans that allow you to
55       manipulate the policy and run l2tpd with the tightest access possible.
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58
59       If you want to allow all daemons to write corefiles to /, you must turn
60       on the allow_daemons_dump_core boolean. Disabled by default.
61
62       setsebool -P allow_daemons_dump_core 1
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66       If you want to allow all daemons to use tcp wrappers, you must turn  on
67       the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
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69       setsebool -P allow_daemons_use_tcp_wrapper 1
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73       If  you  want to allow all daemons the ability to read/write terminals,
74       you  must  turn  on  the  allow_daemons_use_tty  boolean.  Disabled  by
75       default.
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77       setsebool -P allow_daemons_use_tty 1
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81       If you want to allow all domains to use other domains file descriptors,
82       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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84       setsebool -P allow_domain_fd_use 1
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88       If you want to allow unconfined executables to make their  heap  memory
89       executable.   Doing  this  is  a  really bad idea. Probably indicates a
90       badly coded executable, but could indicate an attack.  This  executable
91       should  be  reported  in  bugzilla, you must turn on the allow_execheap
92       boolean. Disabled by default.
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94       setsebool -P allow_execheap 1
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98       If you want to allow unconfined executables to map a memory  region  as
99       both  executable  and  writable,  this  is dangerous and the executable
100       should be reported in bugzilla), you must  turn  on  the  allow_execmem
101       boolean. Enabled by default.
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103       setsebool -P allow_execmem 1
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107       If  you  want  to  allow  all  unconfined  executables to use libraries
108       requiring text relocation that are not  labeled  textrel_shlib_t),  you
109       must turn on the allow_execmod boolean. Enabled by default.
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111       setsebool -P allow_execmod 1
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115       If  you  want  to allow unconfined executables to make their stack exe‐
116       cutable.  This should never, ever be necessary.  Probably  indicates  a
117       badly  coded  executable, but could indicate an attack. This executable
118       should be reported in bugzilla), you must turn on  the  allow_execstack
119       boolean. Enabled by default.
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121       setsebool -P allow_execstack 1
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125       If  you want to allow sysadm to debug or ptrace all processes, you must
126       turn on the allow_ptrace boolean. Disabled by default.
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128       setsebool -P allow_ptrace 1
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132       If you want to enable cluster mode for daemons, you must  turn  on  the
133       daemons_enable_cluster_mode boolean. Disabled by default.
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135       setsebool -P daemons_enable_cluster_mode 1
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139       If  you  want to allow all domains to have the kernel load modules, you
140       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
141       default.
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143       setsebool -P domain_kernel_load_modules 1
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147       If you want to allow all domains to execute in fips_mode, you must turn
148       on the fips_mode boolean. Enabled by default.
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150       setsebool -P fips_mode 1
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154       If you want to enable reading of urandom for all domains, you must turn
155       on the global_ssp boolean. Disabled by default.
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157       setsebool -P global_ssp 1
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161       If you want to enable support for upstart as the init program, you must
162       turn on the init_upstart boolean. Enabled by default.
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164       setsebool -P init_upstart 1
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168       If you want to allow certain domains to map low memory in  the  kernel,
169       you must turn on the mmap_low_allowed boolean. Disabled by default.
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171       setsebool -P mmap_low_allowed 1
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175       If  you want to boolean to determine whether the system permits loading
176       policy, setting enforcing mode, and changing boolean values.  Set  this
177       to  true  and  you  have to reboot to set it back, you must turn on the
178       secure_mode_policyload boolean. Disabled by default.
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180       setsebool -P secure_mode_policyload 1
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184       If you want to support X userspace object manager, you must turn on the
185       xserver_object_manager boolean. Disabled by default.
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187       setsebool -P xserver_object_manager 1
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PORT TYPES

192       SELinux defines port types to represent TCP and UDP ports.
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194       You  can  see  the  types associated with a port by using the following
195       command:
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197       semanage port -l
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200       Policy governs the access  confined  processes  have  to  these  ports.
201       SELinux  l2tpd  policy  is  very flexible allowing users to setup their
202       l2tpd processes in as secure a method as possible.
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204       The following port types are defined for l2tpd:
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206
207       l2tp_port_t
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211       Default Defined Ports:
212                 tcp 1701
213                 udp 1701
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MANAGED FILES

216       The SELinux process type l2tpd_t can manage files labeled with the fol‐
217       lowing  file  types.   The paths listed are the default paths for these
218       file types.  Note the processes UID still need to have DAC permissions.
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220       file_type
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222            all files on the system
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FILE CONTEXTS

226       SELinux requires files to have an extended attribute to define the file
227       type.
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229       You can see the context of a file using the -Z option to ls
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231       Policy  governs  the  access  confined  processes  have to these files.
232       SELinux l2tpd policy is very flexible allowing  users  to  setup  their
233       l2tpd processes in as secure a method as possible.
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235       EQUIVALENCE DIRECTORIES
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238       l2tpd  policy  stores  data  with multiple different file context types
239       under the /var/run/xl2tpd directory.  If you would like  to  store  the
240       data  in a different directory you can use the semanage command to cre‐
241       ate an equivalence mapping.  If you wanted to store this data under the
242       /srv dirctory you would execute the following command:
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244       semanage fcontext -a -e /var/run/xl2tpd /srv/xl2tpd
245       restorecon -R -v /srv/xl2tpd
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247       l2tpd  policy  stores  data  with multiple different file context types
248       under the /var/run/prol2tpd directory.  If you would like to store  the
249       data  in a different directory you can use the semanage command to cre‐
250       ate an equivalence mapping.  If you wanted to store this data under the
251       /srv dirctory you would execute the following command:
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253       semanage fcontext -a -e /var/run/prol2tpd /srv/prol2tpd
254       restorecon -R -v /srv/prol2tpd
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256       STANDARD FILE CONTEXT
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258       SELinux  defines the file context types for the l2tpd, if you wanted to
259       store files with these types in a diffent paths, you  need  to  execute
260       the  semanage  command  to  sepecify  alternate  labeling  and then use
261       restorecon to put the labels on disk.
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263       semanage fcontext -a -t l2tpd_var_run_t '/srv/myl2tpd_content(/.*)?'
264       restorecon -R -v /srv/myl2tpd_content
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266       Note: SELinux often uses regular expressions  to  specify  labels  that
267       match multiple files.
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269       The following file types are defined for l2tpd:
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273       l2tpd_exec_t
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275       -  Set  files  with the l2tpd_exec_t type, if you want to transition an
276       executable to the l2tpd_t domain.
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279       Paths:
280            /usr/sbin/xl2tpd, /usr/sbin/prol2tpd, /usr/sbin/openl2tpd
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283       l2tpd_initrc_exec_t
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285       - Set files with the l2tpd_initrc_exec_t type, if you want  to  transi‐
286       tion an executable to the l2tpd_initrc_t domain.
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289       Paths:
290            /etc/rc.d/init.d/xl2tpd,                /etc/rc.d/init.d/prol2tpd,
291            /etc/rc.d/init.d/openl2tpd
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294       l2tpd_tmp_t
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296       - Set files with the l2tpd_tmp_t type, if you want to store l2tpd  tem‐
297       porary files in the /tmp directories.
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301       l2tpd_var_run_t
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303       -  Set  files  with  the l2tpd_var_run_t type, if you want to store the
304       l2tpd files under the /run or /var/run directory.
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307       Paths:
308            /var/run/xl2tpd(/.*)?,                    /var/run/prol2tpd(/.*)?,
309            /var/run/xl2tpd.pid, /var/run/prol2tpd.ctl, /var/run/prol2tpd.pid,
310            /var/run/openl2tpd.pid
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312
313       Note: File context can be temporarily modified with the chcon  command.
314       If  you want to permanently change the file context you need to use the
315       semanage fcontext command.  This will modify the SELinux labeling data‐
316       base.  You will need to use restorecon to apply the labels.
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COMMANDS

320       semanage  fcontext  can also be used to manipulate default file context
321       mappings.
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323       semanage permissive can also be used to manipulate  whether  or  not  a
324       process type is permissive.
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326       semanage  module can also be used to enable/disable/install/remove pol‐
327       icy modules.
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329       semanage port can also be used to manipulate the port definitions
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331       semanage boolean can also be used to manipulate the booleans
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334       system-config-selinux is a GUI tool available to customize SELinux pol‐
335       icy settings.
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AUTHOR

339       This manual page was auto-generated using sepolicy manpage .
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