1hwclock_selinux(8) SELinux Policy hwclock hwclock_selinux(8)
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6 hwclock_selinux - Security Enhanced Linux Policy for the hwclock pro‐
7 cesses
8
10 Security-Enhanced Linux secures the hwclock processes via flexible
11 mandatory access control.
12 The hwclock processes execute with the hwclock_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
16 For example:
18 ps -eZ | grep hwclock_t
20
24 The hwclock_t SELinux type can be entered via the hwclock_exec_t file
25 type.
26 The default entrypoint paths for the hwclock_t domain are the follow‐
28 ing:
29 /sbin/hwclock, /usr/sbin/hwclock
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 hwclock policy is very flexible allowing users to setup their hwclock
40 processes in as secure a method as possible.
41 The following process types are defined for hwclock:
43 hwclock_t
45 Note: semanage permissive -a hwclock_t can be used to make the process
47 type hwclock_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
53 SELinux policy is customizable based on least access required. hwclock
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run hwclock with the tightest access possi‐
56 ble.
57 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 setsebool -P authlogin_nsswitch_use_ldap 1
65 If you want to allow all daemons the ability to read/write terminals,
69 you must turn on the daemons_use_tty boolean. Disabled by default.
70 setsebool -P daemons_use_tty 1
72 If you want to deny any process from ptracing or debugging any other
76 processes, you must turn on the deny_ptrace boolean. Enabled by
77 default.
78 setsebool -P deny_ptrace 1
80 If you want to allow any process to mmap any file on system with
84 attribute file_type, you must turn on the domain_can_mmap_files bool‐
85 ean. Enabled by default.
86 setsebool -P domain_can_mmap_files 1
88 If you want to allow all domains write to kmsg_device, while kernel is
92 executed with systemd.log_target=kmsg parameter, you must turn on the
93 domain_can_write_kmsg boolean. Disabled by default.
94 setsebool -P domain_can_write_kmsg 1
96 If you want to allow all domains to use other domains file descriptors,
100 you must turn on the domain_fd_use boolean. Enabled by default.
101 setsebool -P domain_fd_use 1
103 If you want to allow all domains to have the kernel load modules, you
107 must turn on the domain_kernel_load_modules boolean. Disabled by
108 default.
109 setsebool -P domain_kernel_load_modules 1
111 If you want to allow all domains to execute in fips_mode, you must turn
115 on the fips_mode boolean. Enabled by default.
116 setsebool -P fips_mode 1
118 If you want to enable reading of urandom for all domains, you must turn
122 on the global_ssp boolean. Disabled by default.
123 setsebool -P global_ssp 1
125 If you want to allow confined applications to run with kerberos, you
129 must turn on the kerberos_enabled boolean. Enabled by default.
130 setsebool -P kerberos_enabled 1
132 If you want to allow system to run with NIS, you must turn on the
136 nis_enabled boolean. Disabled by default.
137 setsebool -P nis_enabled 1
139 If you want to allow confined applications to use nscd shared memory,
143 you must turn on the nscd_use_shm boolean. Disabled by default.
144 setsebool -P nscd_use_shm 1
146
150 The SELinux process type hwclock_t can manage files labeled with the
151 following file types. The paths listed are the default paths for these
152 file types. Note the processes UID still need to have DAC permissions.
153 adjtime_t
155 /etc/adjtime
157
160 SELinux requires files to have an extended attribute to define the file
161 type.
162 You can see the context of a file using the -Z option to ls
164 Policy governs the access confined processes have to these files.
166 SELinux hwclock policy is very flexible allowing users to setup their
167 hwclock processes in as secure a method as possible.
168 The following file types are defined for hwclock:
170 hwclock_exec_t
174 - Set files with the hwclock_exec_t type, if you want to transition an
176 executable to the hwclock_t domain.
177 Paths:
180 /sbin/hwclock, /usr/sbin/hwclock
181 Note: File context can be temporarily modified with the chcon command.
184 If you want to permanently change the file context you need to use the
185 semanage fcontext command. This will modify the SELinux labeling data‐
186 base. You will need to use restorecon to apply the labels.
187
190 semanage fcontext can also be used to manipulate default file context
191 mappings.
192 semanage permissive can also be used to manipulate whether or not a
194 process type is permissive.
195 semanage module can also be used to enable/disable/install/remove pol‐
197 icy modules.
198 semanage boolean can also be used to manipulate the booleans
200 system-config-selinux is a GUI tool available to customize SELinux pol‐
203 icy settings.
204
207 This manual page was auto-generated using sepolicy manpage .
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211 selinux(8), hwclock(8), semanage(8), restorecon(8), chcon(1), sepol‐
212 icy(8) , setsebool(8)
213hwclock 19-04-25 hwclock_selinux(8)