rngd_selinux(8)

1rngd_selinux(8)               SELinux Policy rngd              rngd_selinux(8)
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NAME

6       rngd_selinux - Security Enhanced Linux Policy for the rngd processes
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DESCRIPTION

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

23       The rngd_t SELinux type can be entered via the rngd_exec_t file type.
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25       The default entrypoint paths for the rngd_t domain are the following:
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27       /usr/sbin/rngd
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PROCESS TYPES

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

50       SELinux policy is customizable based on least  access  required.   rngd
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run rngd with the tightest access possible.
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56       If you want to allow all daemons to write corefiles to /, you must turn
57       on the daemons_dump_core boolean. Disabled by default.
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59       setsebool -P daemons_dump_core 1
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63       If  you  want  to enable cluster mode for daemons, you must turn on the
64       daemons_enable_cluster_mode boolean. Enabled by default.
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66       setsebool -P daemons_enable_cluster_mode 1
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70       If you want to allow all daemons to use tcp wrappers, you must turn  on
71       the daemons_use_tcp_wrapper boolean. Disabled by default.
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73       setsebool -P daemons_use_tcp_wrapper 1
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77       If  you  want to allow all daemons the ability to read/write terminals,
78       you must turn on the daemons_use_tty boolean. Disabled by default.
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80       setsebool -P daemons_use_tty 1
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84       If you want to deny any process from ptracing or  debugging  any  other
85       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
86       default.
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88       setsebool -P deny_ptrace 1
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92       If you want to allow any process  to  mmap  any  file  on  system  with
93       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
94       ean. Enabled by default.
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96       setsebool -P domain_can_mmap_files 1
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100       If you want to allow all domains write to kmsg_device, while kernel  is
101       executed  with  systemd.log_target=kmsg parameter, you must turn on the
102       domain_can_write_kmsg boolean. Disabled by default.
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104       setsebool -P domain_can_write_kmsg 1
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108       If you want to allow all domains to use other domains file descriptors,
109       you must turn on the domain_fd_use boolean. Enabled by default.
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111       setsebool -P domain_fd_use 1
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115       If  you  want to allow all domains to have the kernel load modules, you
116       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
117       default.
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119       setsebool -P domain_kernel_load_modules 1
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123       If you want to allow all domains to execute in fips_mode, you must turn
124       on the fips_mode boolean. Enabled by default.
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126       setsebool -P fips_mode 1
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130       If you want to enable reading of urandom for all domains, you must turn
131       on the global_ssp boolean. Disabled by default.
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133       setsebool -P global_ssp 1
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MANAGED FILES

138       The  SELinux process type rngd_t can manage files labeled with the fol‐
139       lowing file types.  The paths listed are the default  paths  for  these
140       file types.  Note the processes UID still need to have DAC permissions.
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142       cluster_conf_t
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144            /etc/cluster(/.*)?
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146       cluster_var_lib_t
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148            /var/lib/pcsd(/.*)?
149            /var/lib/cluster(/.*)?
150            /var/lib/openais(/.*)?
151            /var/lib/pengine(/.*)?
152            /var/lib/corosync(/.*)?
153            /usr/lib/heartbeat(/.*)?
154            /var/lib/heartbeat(/.*)?
155            /var/lib/pacemaker(/.*)?
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157       cluster_var_run_t
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159            /var/run/crm(/.*)?
160            /var/run/cman_.*
161            /var/run/rsctmp(/.*)?
162            /var/run/aisexec.*
163            /var/run/heartbeat(/.*)?
164            /var/run/corosync-qnetd(/.*)?
165            /var/run/corosync-qdevice(/.*)?
166            /var/run/cpglockd.pid
167            /var/run/corosync.pid
168            /var/run/rgmanager.pid
169            /var/run/cluster/rgmanager.sk
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171       rngd_var_run_t
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173            /var/run/rngd.pid
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175       root_t
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177            /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
178            /
179            /initrd
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FILE CONTEXTS

183       SELinux requires files to have an extended attribute to define the file
184       type.
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186       You can see the context of a file using the -Z option to ls
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188       Policy governs the access  confined  processes  have  to  these  files.
189       SELinux rngd policy is very flexible allowing users to setup their rngd
190       processes in as secure a method as possible.
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192       STANDARD FILE CONTEXT
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194       SELinux defines the file context types for the rngd, if you  wanted  to
195       store  files  with  these types in a diffent paths, you need to execute
196       the semanage command  to  sepecify  alternate  labeling  and  then  use
197       restorecon to put the labels on disk.
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199       semanage fcontext -a -t rngd_var_run_t '/srv/myrngd_content(/.*)?'
200       restorecon -R -v /srv/myrngd_content
201
202       Note:  SELinux  often  uses  regular expressions to specify labels that
203       match multiple files.
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205       The following file types are defined for rngd:
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209       rngd_exec_t
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211       - Set files with the rngd_exec_t type, if you  want  to  transition  an
212       executable to the rngd_t domain.
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216       rngd_initrc_exec_t
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218       - Set files with the rngd_initrc_exec_t type, if you want to transition
219       an executable to the rngd_initrc_t domain.
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223       rngd_unit_file_t
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225       - Set files with the rngd_unit_file_t type, if you want  to  treat  the
226       files as rngd unit content.
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230       rngd_var_run_t
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232       - Set files with the rngd_var_run_t type, if you want to store the rngd
233       files under the /run or /var/run directory.
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237       Note: File context can be temporarily modified with the chcon  command.
238       If  you want to permanently change the file context you need to use the
239       semanage fcontext command.  This will modify the SELinux labeling data‐
240       base.  You will need to use restorecon to apply the labels.
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COMMANDS

244       semanage  fcontext  can also be used to manipulate default file context
245       mappings.
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247       semanage permissive can also be used to manipulate  whether  or  not  a
248       process type is permissive.
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250       semanage  module can also be used to enable/disable/install/remove pol‐
251       icy modules.
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253       semanage boolean can also be used to manipulate the booleans
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255
256       system-config-selinux is a GUI tool available to customize SELinux pol‐
257       icy settings.
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AUTHOR

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