1usbmodules_selinux(8) SELinux Policy usbmodules usbmodules_selinux(8)
2
3
4
6 usbmodules_selinux - Security Enhanced Linux Policy for the usbmodules
7 processes
8
10 Security-Enhanced Linux secures the usbmodules processes via flexible
11 mandatory access control.
12
13 The usbmodules processes execute with the usbmodules_t SELinux type.
14 You can check if you have these processes running by executing the ps
15 command with the -Z qualifier.
16
17 For example:
18
19 ps -eZ | grep usbmodules_t
20
21
22
24 The usbmodules_t SELinux type can be entered via the usbmodules_exec_t
25 file type.
26
27 The default entrypoint paths for the usbmodules_t domain are the fol‐
28 lowing:
29
30 /sbin/usbmodules, /usr/sbin/usbmodules
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 usbmodules policy is very flexible allowing users to setup their usb‐
40 modules processes in as secure a method as possible.
41
42 The following process types are defined for usbmodules:
43
44 usbmodules_t
45
46 Note: semanage permissive -a usbmodules_t can be used to make the
47 process type usbmodules_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
51
53 SELinux policy is customizable based on least access required. usbmod‐
54 ules policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run usbmodules with the tightest
56 access possible.
57
58
59
60 If you want to allow all daemons the ability to read/write terminals,
61 you must turn on the daemons_use_tty boolean. Disabled by default.
62
63 setsebool -P daemons_use_tty 1
64
65
66
67 If you want to deny any process from ptracing or debugging any other
68 processes, you must turn on the deny_ptrace boolean. Enabled by
69 default.
70
71 setsebool -P deny_ptrace 1
72
73
74
75 If you want to allow any process to mmap any file on system with
76 attribute file_type, you must turn on the domain_can_mmap_files bool‐
77 ean. Enabled by default.
78
79 setsebool -P domain_can_mmap_files 1
80
81
82
83 If you want to allow all domains write to kmsg_device, while kernel is
84 executed with systemd.log_target=kmsg parameter, you must turn on the
85 domain_can_write_kmsg boolean. Disabled by default.
86
87 setsebool -P domain_can_write_kmsg 1
88
89
90
91 If you want to allow all domains to use other domains file descriptors,
92 you must turn on the domain_fd_use boolean. Enabled by default.
93
94 setsebool -P domain_fd_use 1
95
96
97
98 If you want to allow all domains to have the kernel load modules, you
99 must turn on the domain_kernel_load_modules boolean. Disabled by
100 default.
101
102 setsebool -P domain_kernel_load_modules 1
103
104
105
106 If you want to allow all domains to execute in fips_mode, you must turn
107 on the fips_mode boolean. Enabled by default.
108
109 setsebool -P fips_mode 1
110
111
112
113 If you want to enable reading of urandom for all domains, you must turn
114 on the global_ssp boolean. Disabled by default.
115
116 setsebool -P global_ssp 1
117
118
119
121 The SELinux process type usbmodules_t can manage files labeled with the
122 following file types. The paths listed are the default paths for these
123 file types. Note the processes UID still need to have DAC permissions.
124
125 usbfs_t
126
127
128
130 SELinux requires files to have an extended attribute to define the file
131 type.
132
133 You can see the context of a file using the -Z option to ls
134
135 Policy governs the access confined processes have to these files.
136 SELinux usbmodules policy is very flexible allowing users to setup
137 their usbmodules processes in as secure a method as possible.
138
139 The following file types are defined for usbmodules:
140
141
142
143 usbmodules_exec_t
144
145 - Set files with the usbmodules_exec_t type, if you want to transition
146 an executable to the usbmodules_t domain.
147
148
149 Paths:
150 /sbin/usbmodules, /usr/sbin/usbmodules
151
152
153 Note: File context can be temporarily modified with the chcon command.
154 If you want to permanently change the file context you need to use the
155 semanage fcontext command. This will modify the SELinux labeling data‐
156 base. You will need to use restorecon to apply the labels.
157
158
160 semanage fcontext can also be used to manipulate default file context
161 mappings.
162
163 semanage permissive can also be used to manipulate whether or not a
164 process type is permissive.
165
166 semanage module can also be used to enable/disable/install/remove pol‐
167 icy modules.
168
169 semanage boolean can also be used to manipulate the booleans
170
171
172 system-config-selinux is a GUI tool available to customize SELinux pol‐
173 icy settings.
174
175
177 This manual page was auto-generated using sepolicy manpage .
178
179
181 selinux(8), usbmodules(8), semanage(8), restorecon(8), chcon(1), sepol‐
182 icy(8) , setsebool(8)
183
184
185
186usbmodules 19-04-25 usbmodules_selinux(8)