kdump_selinux(8)

1kdump_selinux(8)             SELinux Policy kdump             kdump_selinux(8)
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NAME

6       kdump_selinux - Security Enhanced Linux Policy for the kdump processes
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DESCRIPTION

9       Security-Enhanced Linux secures the kdump processes via flexible manda‐
10       tory access control.
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12       The kdump processes execute with the  kdump_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 kdump_t
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ENTRYPOINTS

23       The kdump_t SELinux type can be entered via the kdump_exec_t file type.
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25       The default entrypoint paths for the kdump_t domain are the following:
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27       /sbin/kdump, /sbin/kexec, /usr/sbin/kdump, /usr/sbin/kexec
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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       kdump policy is very flexible allowing users to setup their kdump  pro‐
37       cesses in as secure a method as possible.
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39       The following process types are defined for kdump:
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41       kdump_t, kdumpctl_t, kdumpgui_t
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43       Note:  semanage  permissive  -a kdump_t can be used to make the process
44       type kdump_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.   kdump
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run kdump with the tightest access possible.
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56       If you want to allow all domains to execute in fips_mode, you must turn
57       on the fips_mode boolean. Enabled by default.
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59       setsebool -P fips_mode 1
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MANAGED FILES

64       The SELinux process type kdump_t can manage files labeled with the fol‐
65       lowing file types.  The paths listed are the default  paths  for  these
66       file types.  Note the processes UID still need to have DAC permissions.
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68       kdump_crash_t
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70            /var/crash(/.*)?
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72       kdump_lock_t
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74            /var/lock/kdump(/.*)?
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FILE CONTEXTS

78       SELinux requires files to have an extended attribute to define the file
79       type.
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81       You can see the context of a file using the -Z option to ls
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83       Policy governs the access  confined  processes  have  to  these  files.
84       SELinux  kdump  policy  is  very flexible allowing users to setup their
85       kdump processes in as secure a method as possible.
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87       STANDARD FILE CONTEXT
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89       SELinux defines the file context types for the kdump, if you wanted  to
90       store  files  with  these types in a diffent paths, you need to execute
91       the semanage command  to  sepecify  alternate  labeling  and  then  use
92       restorecon to put the labels on disk.
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94       semanage fcontext -a -t kdumpgui_tmp_t '/srv/mykdump_content(/.*)?'
95       restorecon -R -v /srv/mykdump_content
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97       Note:  SELinux  often  uses  regular expressions to specify labels that
98       match multiple files.
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100       The following file types are defined for kdump:
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104       kdump_crash_t
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106       - Set files with the kdump_crash_t type, if you want to treat the files
107       as kdump crash data.
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111       kdump_etc_t
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113       - Set files with the kdump_etc_t type, if you want to store kdump files
114       in the /etc directories.
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118       kdump_exec_t
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120       - Set files with the kdump_exec_t type, if you want  to  transition  an
121       executable to the kdump_t domain.
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124       Paths:
125            /sbin/kdump, /sbin/kexec, /usr/sbin/kdump, /usr/sbin/kexec
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128       kdump_initrc_exec_t
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130       -  Set  files with the kdump_initrc_exec_t type, if you want to transi‐
131       tion an executable to the kdump_initrc_t domain.
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135       kdump_lock_t
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137       - Set files with the kdump_lock_t type, if you want to treat the  files
138       as kdump lock data, stored under the /var/lock directory
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142       kdump_unit_file_t
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144       -  Set  files with the kdump_unit_file_t type, if you want to treat the
145       files as kdump unit content.
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149       kdumpctl_exec_t
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151       - Set files with the kdumpctl_exec_t type, if you want to transition an
152       executable to the kdumpctl_t domain.
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156       kdumpctl_tmp_t
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158       - Set files with the kdumpctl_tmp_t type, if you want to store kdumpctl
159       temporary files in the /tmp directories.
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163       kdumpgui_exec_t
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165       - Set files with the kdumpgui_exec_t type, if you want to transition an
166       executable to the kdumpgui_t domain.
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170       kdumpgui_tmp_t
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172       - Set files with the kdumpgui_tmp_t type, if you want to store kdumpgui
173       temporary files in the /tmp directories.
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177       Note: File context can be temporarily modified with the chcon  command.
178       If  you want to permanently change the file context you need to use the
179       semanage fcontext command.  This will modify the SELinux labeling data‐
180       base.  You will need to use restorecon to apply the labels.
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COMMANDS

184       semanage  fcontext  can also be used to manipulate default file context
185       mappings.
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187       semanage permissive can also be used to manipulate  whether  or  not  a
188       process type is permissive.
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190       semanage  module can also be used to enable/disable/install/remove pol‐
191       icy modules.
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193       semanage boolean can also be used to manipulate the booleans
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196       system-config-selinux is a GUI tool available to customize SELinux pol‐
197       icy settings.
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AUTHOR

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