system_dbusd_selinux(8)

1system_dbusd_selinux(8)   SELinux Policy system_dbusd  system_dbusd_selinux(8)
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NAME

6       system_dbusd_selinux  -  Security  Enhanced  Linux  Policy for the sys‐
7       tem_dbusd processes
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DESCRIPTION

10       Security-Enhanced Linux secures the system_dbusd processes via flexible
11       mandatory access control.
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13       The  system_dbusd  processes  execute  with  the system_dbusd_t SELinux
14       type. You can check if you have these processes  running  by  executing
15       the ps command with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep system_dbusd_t
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ENTRYPOINTS

24       The  system_dbusd_t  SELinux  type  can be entered via the dbusd_exec_t
25       file type.
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27       The default entrypoint paths for the system_dbusd_t domain are the fol‐
28       lowing:
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30       /usr/bin/dbus-daemon(-1)?,  /bin/dbus-daemon,  /lib/dbus-1/dbus-daemon-
31       launch-helper,               /usr/lib/dbus-1/dbus-daemon-launch-helper,
32       /usr/libexec/dbus-1/dbus-daemon-launch-helper
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PROCESS TYPES

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

55       SELinux  policy  is  customizable based on least access required.  sys‐
56       tem_dbusd policy is extremely flexible and has  several  booleans  that
57       allow you to manipulate the policy and run system_dbusd with the tight‐
58       est access possible.
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62       If you want to allow users to resolve user passwd entries directly from
63       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
64       gin_nsswitch_use_ldap boolean. Disabled by default.
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66       setsebool -P authlogin_nsswitch_use_ldap 1
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70       If you want to allow all daemons the ability to  read/write  terminals,
71       you must turn on the daemons_use_tty boolean. Disabled by default.
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73       setsebool -P daemons_use_tty 1
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77       If  you  want  to deny any process from ptracing or debugging any other
78       processes, you  must  turn  on  the  deny_ptrace  boolean.  Enabled  by
79       default.
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81       setsebool -P deny_ptrace 1
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85       If  you  want  to  allow  any  process  to mmap any file on system with
86       attribute file_type, you must turn on the  domain_can_mmap_files  bool‐
87       ean. Enabled by default.
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89       setsebool -P domain_can_mmap_files 1
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93       If  you want to allow all domains write to kmsg_device, while kernel is
94       executed with systemd.log_target=kmsg parameter, you must turn  on  the
95       domain_can_write_kmsg boolean. Disabled by default.
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97       setsebool -P domain_can_write_kmsg 1
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101       If you want to allow all domains to use other domains file descriptors,
102       you must turn on the domain_fd_use boolean. Enabled by default.
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104       setsebool -P domain_fd_use 1
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108       If you want to allow all domains to have the kernel load  modules,  you
109       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
110       default.
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112       setsebool -P domain_kernel_load_modules 1
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116       If you want to allow all domains to execute in fips_mode, you must turn
117       on the fips_mode boolean. Enabled by default.
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119       setsebool -P fips_mode 1
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123       If you want to enable reading of urandom for all domains, you must turn
124       on the global_ssp boolean. Disabled by default.
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126       setsebool -P global_ssp 1
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130       If you want to allow confined applications to run  with  kerberos,  you
131       must turn on the kerberos_enabled boolean. Enabled by default.
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133       setsebool -P kerberos_enabled 1
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137       If  you  want  to  allow  system  to run with NIS, you must turn on the
138       nis_enabled boolean. Disabled by default.
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140       setsebool -P nis_enabled 1
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144       If you want to allow confined applications to use nscd  shared  memory,
145       you must turn on the nscd_use_shm boolean. Disabled by default.
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147       setsebool -P nscd_use_shm 1
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151       If  you want to support ecryptfs home directories, you must turn on the
152       use_ecryptfs_home_dirs boolean. Disabled by default.
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154       setsebool -P use_ecryptfs_home_dirs 1
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158       If you want to support fusefs home directories, you must  turn  on  the
159       use_fusefs_home_dirs boolean. Disabled by default.
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161       setsebool -P use_fusefs_home_dirs 1
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165       If  you  want  to  support  NFS  home directories, you must turn on the
166       use_nfs_home_dirs boolean. Disabled by default.
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168       setsebool -P use_nfs_home_dirs 1
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172       If you want to support SAMBA home directories, you  must  turn  on  the
173       use_samba_home_dirs boolean. Disabled by default.
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175       setsebool -P use_samba_home_dirs 1
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MANAGED FILES

180       The  SELinux  process type system_dbusd_t can manage files labeled with
181       the following file types.  The paths listed are the default  paths  for
182       these  file  types.  Note the processes UID still need to have DAC per‐
183       missions.
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185       security_t
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187            /selinux
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189       system_dbusd_tmp_t
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192       system_dbusd_var_run_t
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194            /var/run/dbus(/.*)?
195            /var/named/chroot/var/run/dbus(/.*)?
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197       systemd_passwd_var_run_t
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199            /var/run/systemd/ask-password(/.*)?
200            /var/run/systemd/ask-password-block(/.*)?
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FILE CONTEXTS

204       SELinux requires files to have an extended attribute to define the file
205       type.
206
207       You can see the context of a file using the -Z option to ls
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209       Policy  governs  the  access  confined  processes  have to these files.
210       SELinux system_dbusd policy is very flexible allowing  users  to  setup
211       their system_dbusd processes in as secure a method as possible.
212
213       STANDARD FILE CONTEXT
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215       SELinux  defines  the  file  context types for the system_dbusd, if you
216       wanted to store files with these types in a diffent paths, you need  to
217       execute  the  semanage  command to sepecify alternate labeling and then
218       use restorecon to put the labels on disk.
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220       semanage   fcontext   -a   -t    system_dbusd_var_run_t    '/srv/mysys‐
221       tem_dbusd_content(/.*)?'
222       restorecon -R -v /srv/mysystem_dbusd_content
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224       Note:  SELinux  often  uses  regular expressions to specify labels that
225       match multiple files.
226
227       The following file types are defined for system_dbusd:
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231       system_dbusd_tmp_t
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233       - Set files with the system_dbusd_tmp_t type, if you want to store sys‐
234       tem dbusd temporary files in the /tmp directories.
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238       system_dbusd_var_lib_t
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240       -  Set files with the system_dbusd_var_lib_t type, if you want to store
241       the system dbusd files under the /var/lib directory.
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244       Paths:
245            /var/lib/dbus(/.*)?, /var/cache/ibus(/.*)?
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248       system_dbusd_var_run_t
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250       - Set files with the system_dbusd_var_run_t type, if you want to  store
251       the system dbusd files under the /run or /var/run directory.
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254       Paths:
255            /var/run/dbus(/.*)?, /var/named/chroot/var/run/dbus(/.*)?
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258       Note:  File context can be temporarily modified with the chcon command.
259       If you want to permanently change the file context you need to use  the
260       semanage fcontext command.  This will modify the SELinux labeling data‐
261       base.  You will need to use restorecon to apply the labels.
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COMMANDS

265       semanage fcontext can also be used to manipulate default  file  context
266       mappings.
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268       semanage  permissive  can  also  be used to manipulate whether or not a
269       process type is permissive.
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271       semanage module can also be used to enable/disable/install/remove  pol‐
272       icy modules.
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274       semanage boolean can also be used to manipulate the booleans
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277       system-config-selinux is a GUI tool available to customize SELinux pol‐
278       icy settings.
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AUTHOR

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