wireshark_selinux(8)

1wireshark_selinux(8)       SELinux Policy wireshark       wireshark_selinux(8)
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NAME

6       wireshark_selinux  -  Security  Enhanced Linux Policy for the wireshark
7       processes
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DESCRIPTION

10       Security-Enhanced Linux secures the wireshark  processes  via  flexible
11       mandatory access control.
12
13       The  wireshark processes execute with the wireshark_t SELinux type. You
14       can check if you have these processes running by executing the ps  com‐
15       mand with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep wireshark_t
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ENTRYPOINTS

24       The  wireshark_t  SELinux  type can be entered via the wireshark_exec_t
25       file type.
26
27       The default entrypoint paths for the wireshark_t domain are the follow‐
28       ing:
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30       /usr/bin/wireshark
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PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
35
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       wireshark  policy  is very flexible allowing users to setup their wire‐
40       shark processes in as secure a method as possible.
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42       The following process types are defined for wireshark:
43
44       wireshark_t
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46       Note: semanage permissive -a  wireshark_t  can  be  used  to  make  the
47       process  type  wireshark_t  permissive. SELinux does not deny access to
48       permissive process types, but the AVC (SELinux  denials)  messages  are
49       still generated.
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51

BOOLEANS

53       SELinux  policy  is customizable based on least access required.  wire‐
54       shark policy is extremely flexible and has several booleans that  allow
55       you to manipulate the policy and run wireshark with the tightest access
56       possible.
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60       If you want to allow users to resolve user passwd entries directly from
61       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
62       gin_nsswitch_use_ldap boolean. Disabled by default.
63
64       setsebool -P authlogin_nsswitch_use_ldap 1
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68       If you want to deny any process from ptracing or  debugging  any  other
69       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
70       default.
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72       setsebool -P deny_ptrace 1
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76       If you want to allow any process  to  mmap  any  file  on  system  with
77       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
78       ean. Enabled by default.
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80       setsebool -P domain_can_mmap_files 1
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84       If you want to allow all domains write to kmsg_device, while kernel  is
85       executed  with  systemd.log_target=kmsg parameter, you must turn on the
86       domain_can_write_kmsg boolean. Disabled by default.
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88       setsebool -P domain_can_write_kmsg 1
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92       If you want to allow all domains to use other domains file descriptors,
93       you must turn on the domain_fd_use boolean. Enabled by default.
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95       setsebool -P domain_fd_use 1
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99       If  you  want to allow all domains to have the kernel load modules, you
100       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
101       default.
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103       setsebool -P domain_kernel_load_modules 1
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107       If you want to allow all domains to execute in fips_mode, you must turn
108       on the fips_mode boolean. Enabled by default.
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110       setsebool -P fips_mode 1
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114       If you want to enable reading of urandom for all domains, you must turn
115       on the global_ssp boolean. Disabled by default.
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117       setsebool -P global_ssp 1
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121       If  you  want  to allow confined applications to run with kerberos, you
122       must turn on the kerberos_enabled boolean. Enabled by default.
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124       setsebool -P kerberos_enabled 1
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128       If you want to allow system to run with  NIS,  you  must  turn  on  the
129       nis_enabled boolean. Disabled by default.
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131       setsebool -P nis_enabled 1
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135       If  you  want to allow confined applications to use nscd shared memory,
136       you must turn on the nscd_use_shm boolean. Disabled by default.
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138       setsebool -P nscd_use_shm 1
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142       If you want to allow regular users direct dri device access,  you  must
143       turn on the selinuxuser_direct_dri_enabled boolean. Enabled by default.
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145       setsebool -P selinuxuser_direct_dri_enabled 1
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149       If  you want to support ecryptfs home directories, you must turn on the
150       use_ecryptfs_home_dirs boolean. Disabled by default.
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152       setsebool -P use_ecryptfs_home_dirs 1
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156       If you want to support fusefs home directories, you must  turn  on  the
157       use_fusefs_home_dirs boolean. Disabled by default.
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159       setsebool -P use_fusefs_home_dirs 1
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163       If  you  want  to  support  NFS  home directories, you must turn on the
164       use_nfs_home_dirs boolean. Disabled by default.
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166       setsebool -P use_nfs_home_dirs 1
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170       If you want to support SAMBA home directories, you  must  turn  on  the
171       use_samba_home_dirs boolean. Disabled by default.
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173       setsebool -P use_samba_home_dirs 1
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177       If  you  want  to allows clients to write to the X server shared memory
178       segments, you must turn on the xserver_clients_write_xshm boolean. Dis‐
179       abled by default.
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181       setsebool -P xserver_clients_write_xshm 1
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185       If you want to support X userspace object manager, you must turn on the
186       xserver_object_manager boolean. Enabled by default.
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188       setsebool -P xserver_object_manager 1
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MANAGED FILES

193       The SELinux process type wireshark_t can manage files labeled with  the
194       following file types.  The paths listed are the default paths for these
195       file types.  Note the processes UID still need to have DAC permissions.
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197       cifs_t
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200       ecryptfs_t
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202            /home/[^/]+/.Private(/.*)?
203            /home/[^/]+/.ecryptfs(/.*)?
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205       fusefs_t
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207            /var/run/user/[^/]*/gvfs
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209       nfs_t
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212       user_fonts_cache_t
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214            /root/.fontconfig(/.*)?
215            /root/.fonts/auto(/.*)?
216            /root/.fonts.cache-.*
217            /home/[^/]+/.fontconfig(/.*)?
218            /home/[^/]+/.fonts/auto(/.*)?
219            /home/[^/]+/.fonts.cache-.*
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221       user_home_t
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223            /home/[^/]+/.+
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225       wireshark_home_t
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227            /home/[^/]+/.wireshark(/.*)?
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229       wireshark_tmp_t
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232       wireshark_tmpfs_t
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235       xserver_tmpfs_t
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FILE CONTEXTS

240       SELinux requires files to have an extended attribute to define the file
241       type.
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243       You can see the context of a file using the -Z option to ls
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245       Policy  governs  the  access  confined  processes  have to these files.
246       SELinux wireshark policy is very flexible allowing users to setup their
247       wireshark processes in as secure a method as possible.
248
249       STANDARD FILE CONTEXT
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251       SELinux defines the file context types for the wireshark, if you wanted
252       to store files with these types in a diffent paths, you need to execute
253       the  semanage  command  to  sepecify  alternate  labeling  and then use
254       restorecon to put the labels on disk.
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256       semanage  fcontext  -a  -t   wireshark_tmpfs_t   '/srv/mywireshark_con‐
257       tent(/.*)?'
258       restorecon -R -v /srv/mywireshark_content
259
260       Note:  SELinux  often  uses  regular expressions to specify labels that
261       match multiple files.
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263       The following file types are defined for wireshark:
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267       wireshark_exec_t
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269       - Set files with the wireshark_exec_t type, if you want  to  transition
270       an executable to the wireshark_t domain.
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274       wireshark_home_t
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276       -  Set files with the wireshark_home_t type, if you want to store wire‐
277       shark files in the users home directory.
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281       wireshark_tmp_t
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283       - Set files with the wireshark_tmp_t type, if you want to  store  wire‐
284       shark temporary files in the /tmp directories.
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288       wireshark_tmpfs_t
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290       - Set files with the wireshark_tmpfs_t type, if you want to store wire‐
291       shark files on a tmpfs file system.
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295       Note: File context can be temporarily modified with the chcon  command.
296       If  you want to permanently change the file context you need to use the
297       semanage fcontext command.  This will modify the SELinux labeling data‐
298       base.  You will need to use restorecon to apply the labels.
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COMMANDS

302       semanage  fcontext  can also be used to manipulate default file context
303       mappings.
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305       semanage permissive can also be used to manipulate  whether  or  not  a
306       process type is permissive.
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308       semanage  module can also be used to enable/disable/install/remove pol‐
309       icy modules.
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311       semanage boolean can also be used to manipulate the booleans
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313
314       system-config-selinux is a GUI tool available to customize SELinux pol‐
315       icy settings.
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AUTHOR

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