1cpuspeed_selinux(8) SELinux Policy cpuspeed cpuspeed_selinux(8)
2
3
4
6 cpuspeed_selinux - Security Enhanced Linux Policy for the cpuspeed pro‐
7 cesses
8
10 Security-Enhanced Linux secures the cpuspeed processes via flexible
11 mandatory access control.
12
13 The cpuspeed processes execute with the cpuspeed_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
16
17 For example:
18
19 ps -eZ | grep cpuspeed_t
20
21
22
24 The cpuspeed_t SELinux type can be entered via the cpuspeed_exec_t file
25 type.
26
27 The default entrypoint paths for the cpuspeed_t domain are the follow‐
28 ing:
29
30 /usr/sbin/cpufreqd, /usr/sbin/cpuspeed, /usr/sbin/powernowd
31
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
37
38 Policy governs the access confined processes have to files. SELinux
39 cpuspeed policy is very flexible allowing users to setup their cpuspeed
40 processes in as secure a method as possible.
41
42 The following process types are defined for cpuspeed:
43
44 cpuspeed_t
45
46 Note: semanage permissive -a cpuspeed_t can be used to make the process
47 type cpuspeed_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
51
53 SELinux policy is customizable based on least access required. cpus‐
54 peed policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run cpuspeed with the tightest access
56 possible.
57
58
59
60 If you want to allow all domains to execute in fips_mode, you must turn
61 on the fips_mode boolean. Enabled by default.
62
63 setsebool -P fips_mode 1
64
65
66
68 The SELinux process type cpuspeed_t can manage files labeled with the
69 following file types. The paths listed are the default paths for these
70 file types. Note the processes UID still need to have DAC permissions.
71
72 cpuspeed_var_run_t
73
74 /var/run/cpufreqd.pid
75
76 sysfs_t
77
78 /sys(/.*)?
79
80
82 SELinux requires files to have an extended attribute to define the file
83 type.
84
85 You can see the context of a file using the -Z option to ls
86
87 Policy governs the access confined processes have to these files.
88 SELinux cpuspeed policy is very flexible allowing users to setup their
89 cpuspeed processes in as secure a method as possible.
90
91 STANDARD FILE CONTEXT
92
93 SELinux defines the file context types for the cpuspeed, if you wanted
94 to store files with these types in a diffent paths, you need to execute
95 the semanage command to sepecify alternate labeling and then use re‐
96 storecon to put the labels on disk.
97
98 semanage fcontext -a -t cpuspeed_var_run_t '/srv/mycpuspeed_con‐
99 tent(/.*)?'
100 restorecon -R -v /srv/mycpuspeed_content
101
102 Note: SELinux often uses regular expressions to specify labels that
103 match multiple files.
104
105 The following file types are defined for cpuspeed:
106
107
108
109 cpuspeed_exec_t
110
111 - Set files with the cpuspeed_exec_t type, if you want to transition an
112 executable to the cpuspeed_t domain.
113
114
115 Paths:
116 /usr/sbin/cpufreqd, /usr/sbin/cpuspeed, /usr/sbin/powernowd
117
118
119 cpuspeed_var_run_t
120
121 - Set files with the cpuspeed_var_run_t type, if you want to store the
122 cpuspeed files under the /run or /var/run directory.
123
124
125
126 Note: File context can be temporarily modified with the chcon command.
127 If you want to permanently change the file context you need to use the
128 semanage fcontext command. This will modify the SELinux labeling data‐
129 base. You will need to use restorecon to apply the labels.
130
131
133 semanage fcontext can also be used to manipulate default file context
134 mappings.
135
136 semanage permissive can also be used to manipulate whether or not a
137 process type is permissive.
138
139 semanage module can also be used to enable/disable/install/remove pol‐
140 icy modules.
141
142 semanage boolean can also be used to manipulate the booleans
143
144
145 system-config-selinux is a GUI tool available to customize SELinux pol‐
146 icy settings.
147
148
150 This manual page was auto-generated using sepolicy manpage .
151
152
154 selinux(8), cpuspeed(8), semanage(8), restorecon(8), chcon(1), sepol‐
155 icy(8), setsebool(8)
156
157
158
159cpuspeed 21-06-09 cpuspeed_selinux(8)