1ptp4l_selinux(8) SELinux Policy ptp4l ptp4l_selinux(8)
2
6 ptp4l_selinux - Security Enhanced Linux Policy for the ptp4l processes
7
9 Security-Enhanced Linux secures the ptp4l processes via flexible manda‐
10 tory access control.
11 The ptp4l processes execute with the ptp4l_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
15 For example:
17 ps -eZ | grep ptp4l_t
19
23 The ptp4l_t SELinux type can be entered via the ptp4l_exec_t file type.
24 The default entrypoint paths for the ptp4l_t domain are the following:
26 /usr/sbin/ptp4l
28
30 SELinux defines process types (domains) for each process running on the
31 system
32 You can see the context of a process using the -Z option to ps
34 Policy governs the access confined processes have to files. SELinux
36 ptp4l policy is very flexible allowing users to setup their ptp4l pro‐
37 cesses in as secure a method as possible.
38 The following process types are defined for ptp4l:
40 ptp4l_t
42 Note: semanage permissive -a ptp4l_t can be used to make the process
44 type ptp4l_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
47
50 SELinux policy is customizable based on least access required. ptp4l
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run ptp4l with the tightest access possible.
53 If you want to allow all daemons to write corefiles to /, you must turn
57 on the allow_daemons_dump_core boolean. Disabled by default.
58 setsebool -P allow_daemons_dump_core 1
60 If you want to allow all daemons to use tcp wrappers, you must turn on
64 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
65 setsebool -P allow_daemons_use_tcp_wrapper 1
67 If you want to allow all daemons the ability to read/write terminals,
71 you must turn on the allow_daemons_use_tty boolean. Disabled by
72 default.
73 setsebool -P allow_daemons_use_tty 1
75 If you want to allow all domains to use other domains file descriptors,
79 you must turn on the allow_domain_fd_use boolean. Enabled by default.
80 setsebool -P allow_domain_fd_use 1
82 If you want to allow sysadm to debug or ptrace all processes, you must
86 turn on the allow_ptrace boolean. Disabled by default.
87 setsebool -P allow_ptrace 1
89 If you want to enable cluster mode for daemons, you must turn on the
93 daemons_enable_cluster_mode boolean. Disabled by default.
94 setsebool -P daemons_enable_cluster_mode 1
96 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.
102 setsebool -P domain_kernel_load_modules 1
104 If you want to allow all domains to execute in fips_mode, you must turn
108 on the fips_mode boolean. Enabled by default.
109 setsebool -P fips_mode 1
111 If you want to enable reading of urandom for all domains, you must turn
115 on the global_ssp boolean. Disabled by default.
116 setsebool -P global_ssp 1
118 If you want to enable support for upstart as the init program, you must
122 turn on the init_upstart boolean. Enabled by default.
123 setsebool -P init_upstart 1
125
129 The SELinux process type ptp4l_t can manage files labeled with the fol‐
130 lowing file types. The paths listed are the default paths for these
131 file types. Note the processes UID still need to have DAC permissions.
132 chronyd_tmpfs_t
134 cluster_conf_t
137 /etc/cluster(/.*)?
139 cluster_var_lib_t
141 /var/lib(64)?/openais(/.*)?
143 /var/lib(64)?/pengine(/.*)?
144 /var/lib(64)?/corosync(/.*)?
145 /usr/lib(64)?/heartbeat(/.*)?
146 /var/lib(64)?/heartbeat(/.*)?
147 /var/lib(64)?/pacemaker(/.*)?
148 /var/lib/cluster(/.*)?
149 cluster_var_run_t
151 /var/run/crm(/.*)?
153 /var/run/cman_.*
154 /var/run/rsctmp(/.*)?
155 /var/run/aisexec.*
156 /var/run/heartbeat(/.*)?
157 /var/run/cpglockd.pid
158 /var/run/corosync.pid
159 /var/run/rgmanager.pid
160 /var/run/cluster/rgmanager.sk
161 gpsd_tmpfs_t
163 initrc_tmp_t
166 mnt_t
169 /mnt(/[^/]*)
171 /mnt(/[^/]*)?
172 /rhev(/[^/]*)?
173 /media(/[^/]*)
174 /media(/[^/]*)?
175 /etc/rhgb(/.*)?
176 /media/.hal-.*
177 /net
178 /afs
179 /rhev
180 /misc
181 root_t
183 /
185 /initrd
186 timemaster_tmpfs_t
188 timemaster_var_run_t
191 /var/run/timemaster(/.*)?
193 tmp_t
195 /tmp
197 /usr/tmp
198 /var/tmp
199 /tmp-inst
200 /var/tmp-inst
201 /var/tmp/vi.recover
202
205 SELinux requires files to have an extended attribute to define the file
206 type.
207 You can see the context of a file using the -Z option to ls
209 Policy governs the access confined processes have to these files.
211 SELinux ptp4l policy is very flexible allowing users to setup their
212 ptp4l processes in as secure a method as possible.
213 The following file types are defined for ptp4l:
215 ptp4l_exec_t
219 - Set files with the ptp4l_exec_t type, if you want to transition an
221 executable to the ptp4l_t domain.
222 ptp4l_initrc_exec_t
226 - Set files with the ptp4l_initrc_exec_t type, if you want to transi‐
228 tion an executable to the ptp4l_initrc_t domain.
229 Note: File context can be temporarily modified with the chcon command.
233 If you want to permanently change the file context you need to use the
234 semanage fcontext command. This will modify the SELinux labeling data‐
235 base. You will need to use restorecon to apply the labels.
236
239 semanage fcontext can also be used to manipulate default file context
240 mappings.
241 semanage permissive can also be used to manipulate whether or not a
243 process type is permissive.
244 semanage module can also be used to enable/disable/install/remove pol‐
246 icy modules.
247 semanage boolean can also be used to manipulate the booleans
249 system-config-selinux is a GUI tool available to customize SELinux pol‐
252 icy settings.
253
256 This manual page was auto-generated using sepolicy manpage .
257
260 selinux(8), ptp4l(8), semanage(8), restorecon(8), chcon(1) , setse‐
261 bool(8)
262ptp4l 15-06-03 ptp4l_selinux(8)