1brltty_selinux(8) SELinux Policy brltty brltty_selinux(8)
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6 brltty_selinux - Security Enhanced Linux Policy for the brltty pro‐
7 cesses
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10 Security-Enhanced Linux secures the brltty processes via flexible
11 mandatory access control.
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13 The brltty processes execute with the brltty_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep brltty_t
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24 The brltty_t SELinux type can be entered via the brltty_exec_t file
25 type.
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27 The default entrypoint paths for the brltty_t domain are the following:
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29 /usr/bin/brltty
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32 SELinux defines process types (domains) for each process running on the
33 system
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35 You can see the context of a process using the -Z option to ps
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37 Policy governs the access confined processes have to files. SELinux
38 brltty policy is very flexible allowing users to setup their brltty
39 processes in as secure a method as possible.
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41 The following process types are defined for brltty:
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43 brltty_t
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45 Note: semanage permissive -a brltty_t can be used to make the process
46 type brltty_t permissive. SELinux does not deny access to permissive
47 process types, but the AVC (SELinux denials) messages are still gener‐
48 ated.
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52 SELinux policy is customizable based on least access required. brltty
53 policy is extremely flexible and has several booleans that allow you to
54 manipulate the policy and run brltty with the tightest access possible.
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58 If you want to allow users to resolve user passwd entries directly from
59 ldap rather then using a sssd server, you must turn on the authlo‐
60 gin_nsswitch_use_ldap boolean. Disabled by default.
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62 setsebool -P authlogin_nsswitch_use_ldap 1
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66 If you want to allow all daemons to write corefiles to /, you must turn
67 on the daemons_dump_core boolean. Disabled by default.
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69 setsebool -P daemons_dump_core 1
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73 If you want to enable cluster mode for daemons, you must turn on the
74 daemons_enable_cluster_mode boolean. Enabled by default.
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76 setsebool -P daemons_enable_cluster_mode 1
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80 If you want to allow all daemons to use tcp wrappers, you must turn on
81 the daemons_use_tcp_wrapper boolean. Disabled by default.
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83 setsebool -P daemons_use_tcp_wrapper 1
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87 If you want to allow all daemons the ability to read/write terminals,
88 you must turn on the daemons_use_tty boolean. Disabled by default.
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90 setsebool -P daemons_use_tty 1
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94 If you want to deny any process from ptracing or debugging any other
95 processes, you must turn on the deny_ptrace boolean. Enabled by
96 default.
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98 setsebool -P deny_ptrace 1
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102 If you want to allow any process to mmap any file on system with
103 attribute file_type, you must turn on the domain_can_mmap_files bool‐
104 ean. Enabled by default.
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106 setsebool -P domain_can_mmap_files 1
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110 If you want to allow all domains write to kmsg_device, while kernel is
111 executed with systemd.log_target=kmsg parameter, you must turn on the
112 domain_can_write_kmsg boolean. Disabled by default.
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114 setsebool -P domain_can_write_kmsg 1
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118 If you want to allow all domains to use other domains file descriptors,
119 you must turn on the domain_fd_use boolean. Enabled by default.
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121 setsebool -P domain_fd_use 1
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125 If you want to allow all domains to have the kernel load modules, you
126 must turn on the domain_kernel_load_modules boolean. Disabled by
127 default.
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129 setsebool -P domain_kernel_load_modules 1
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133 If you want to allow all domains to execute in fips_mode, you must turn
134 on the fips_mode boolean. Enabled by default.
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136 setsebool -P fips_mode 1
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140 If you want to enable reading of urandom for all domains, you must turn
141 on the global_ssp boolean. Disabled by default.
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143 setsebool -P global_ssp 1
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147 If you want to allow confined applications to run with kerberos, you
148 must turn on the kerberos_enabled boolean. Enabled by default.
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150 setsebool -P kerberos_enabled 1
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154 If you want to allow system to run with NIS, you must turn on the
155 nis_enabled boolean. Disabled by default.
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157 setsebool -P nis_enabled 1
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161 If you want to allow confined applications to use nscd shared memory,
162 you must turn on the nscd_use_shm boolean. Disabled by default.
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164 setsebool -P nscd_use_shm 1
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169 The SELinux process type brltty_t can manage files labeled with the
170 following file types. The paths listed are the default paths for these
171 file types. Note the processes UID still need to have DAC permissions.
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173 brltty_log_t
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175 /tmp/brltty.log.*
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177 brltty_var_lib_t
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179 /var/lib/BrlAPI(/.*)?
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181 brltty_var_run_t
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183 /var/run/brltty(/.*)?
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185 cluster_conf_t
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187 /etc/cluster(/.*)?
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189 cluster_var_lib_t
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191 /var/lib/pcsd(/.*)?
192 /var/lib/cluster(/.*)?
193 /var/lib/openais(/.*)?
194 /var/lib/pengine(/.*)?
195 /var/lib/corosync(/.*)?
196 /usr/lib/heartbeat(/.*)?
197 /var/lib/heartbeat(/.*)?
198 /var/lib/pacemaker(/.*)?
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200 cluster_var_run_t
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202 /var/run/crm(/.*)?
203 /var/run/cman_.*
204 /var/run/rsctmp(/.*)?
205 /var/run/aisexec.*
206 /var/run/heartbeat(/.*)?
207 /var/run/corosync-qnetd(/.*)?
208 /var/run/corosync-qdevice(/.*)?
209 /var/run/cpglockd.pid
210 /var/run/corosync.pid
211 /var/run/rgmanager.pid
212 /var/run/cluster/rgmanager.sk
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214 root_t
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216 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
217 /
218 /initrd
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222 SELinux requires files to have an extended attribute to define the file
223 type.
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225 You can see the context of a file using the -Z option to ls
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227 Policy governs the access confined processes have to these files.
228 SELinux brltty policy is very flexible allowing users to setup their
229 brltty processes in as secure a method as possible.
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231 STANDARD FILE CONTEXT
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233 SELinux defines the file context types for the brltty, if you wanted to
234 store files with these types in a diffent paths, you need to execute
235 the semanage command to sepecify alternate labeling and then use
236 restorecon to put the labels on disk.
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238 semanage fcontext -a -t brltty_var_run_t '/srv/mybrltty_content(/.*)?'
239 restorecon -R -v /srv/mybrltty_content
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241 Note: SELinux often uses regular expressions to specify labels that
242 match multiple files.
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244 The following file types are defined for brltty:
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248 brltty_exec_t
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250 - Set files with the brltty_exec_t type, if you want to transition an
251 executable to the brltty_t domain.
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255 brltty_log_t
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257 - Set files with the brltty_log_t type, if you want to treat the data
258 as brltty log data, usually stored under the /var/log directory.
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262 brltty_unit_file_t
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264 - Set files with the brltty_unit_file_t type, if you want to treat the
265 files as brltty unit content.
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269 brltty_var_lib_t
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271 - Set files with the brltty_var_lib_t type, if you want to store the
272 brltty files under the /var/lib directory.
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276 brltty_var_run_t
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278 - Set files with the brltty_var_run_t type, if you want to store the
279 brltty files under the /run or /var/run directory.
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283 Note: File context can be temporarily modified with the chcon command.
284 If you want to permanently change the file context you need to use the
285 semanage fcontext command. This will modify the SELinux labeling data‐
286 base. You will need to use restorecon to apply the labels.
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290 semanage fcontext can also be used to manipulate default file context
291 mappings.
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293 semanage permissive can also be used to manipulate whether or not a
294 process type is permissive.
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296 semanage module can also be used to enable/disable/install/remove pol‐
297 icy modules.
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299 semanage boolean can also be used to manipulate the booleans
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302 system-config-selinux is a GUI tool available to customize SELinux pol‐
303 icy settings.
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307 This manual page was auto-generated using sepolicy manpage .
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311 selinux(8), brltty(8), semanage(8), restorecon(8), chcon(1), sepol‐
312 icy(8) , setsebool(8)
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316brltty 19-04-25 brltty_selinux(8)