1blkmapd_selinux(8) SELinux Policy blkmapd blkmapd_selinux(8)
2
6 blkmapd_selinux - Security Enhanced Linux Policy for the blkmapd pro‐
7 cesses
8
10 Security-Enhanced Linux secures the blkmapd processes via flexible
11 mandatory access control.
12 The blkmapd processes execute with the blkmapd_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 blkmapd_t
20
24 The blkmapd_t SELinux type can be entered via the blkmapd_exec_t file
25 type.
26 The default entrypoint paths for the blkmapd_t domain are the follow‐
28 ing:
29 /usr/sbin/blkmapd
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 blkmapd policy is very flexible allowing users to setup their blkmapd
40 processes in as secure a method as possible.
41 The following process types are defined for blkmapd:
43 blkmapd_t
45 Note: semanage permissive -a blkmapd_t can be used to make the process
47 type blkmapd_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. blkmapd
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run blkmapd with the tightest access possi‐
56 ble.
57 If you want to allow all daemons to write corefiles to /, you must turn
61 on the daemons_dump_core boolean. Disabled by default.
62 setsebool -P daemons_dump_core 1
64 If you want to enable cluster mode for daemons, you must turn on the
68 daemons_enable_cluster_mode boolean. Enabled by default.
69 setsebool -P daemons_enable_cluster_mode 1
71 If you want to allow all daemons to use tcp wrappers, you must turn on
75 the daemons_use_tcp_wrapper boolean. Disabled by default.
76 setsebool -P daemons_use_tcp_wrapper 1
78 If you want to allow all daemons the ability to read/write terminals,
82 you must turn on the daemons_use_tty boolean. Disabled by default.
83 setsebool -P daemons_use_tty 1
85 If you want to deny any process from ptracing or debugging any other
89 processes, you must turn on the deny_ptrace boolean. Enabled by
90 default.
91 setsebool -P deny_ptrace 1
93 If you want to allow any process to mmap any file on system with
97 attribute file_type, you must turn on the domain_can_mmap_files bool‐
98 ean. Enabled by default.
99 setsebool -P domain_can_mmap_files 1
101 If you want to allow all domains write to kmsg_device, while kernel is
105 executed with systemd.log_target=kmsg parameter, you must turn on the
106 domain_can_write_kmsg boolean. Disabled by default.
107 setsebool -P domain_can_write_kmsg 1
109 If you want to allow all domains to use other domains file descriptors,
113 you must turn on the domain_fd_use boolean. Enabled by default.
114 setsebool -P domain_fd_use 1
116 If you want to allow all domains to have the kernel load modules, you
120 must turn on the domain_kernel_load_modules boolean. Disabled by
121 default.
122 setsebool -P domain_kernel_load_modules 1
124 If you want to allow all domains to execute in fips_mode, you must turn
128 on the fips_mode boolean. Enabled by default.
129 setsebool -P fips_mode 1
131 If you want to enable reading of urandom for all domains, you must turn
135 on the global_ssp boolean. Disabled by default.
136 setsebool -P global_ssp 1
138
142 The SELinux process type blkmapd_t can manage files labeled with the
143 following file types. The paths listed are the default paths for these
144 file types. Note the processes UID still need to have DAC permissions.
145 blkmapd_var_run_t
147 /var/run/blkmapd.pid
149 cluster_conf_t
151 /etc/cluster(/.*)?
153 cluster_var_lib_t
155 /var/lib/pcsd(/.*)?
157 /var/lib/cluster(/.*)?
158 /var/lib/openais(/.*)?
159 /var/lib/pengine(/.*)?
160 /var/lib/corosync(/.*)?
161 /usr/lib/heartbeat(/.*)?
162 /var/lib/heartbeat(/.*)?
163 /var/lib/pacemaker(/.*)?
164 cluster_var_run_t
166 /var/run/crm(/.*)?
168 /var/run/cman_.*
169 /var/run/rsctmp(/.*)?
170 /var/run/aisexec.*
171 /var/run/heartbeat(/.*)?
172 /var/run/corosync-qnetd(/.*)?
173 /var/run/corosync-qdevice(/.*)?
174 /var/run/cpglockd.pid
175 /var/run/corosync.pid
176 /var/run/rgmanager.pid
177 /var/run/cluster/rgmanager.sk
178 root_t
180 /sysroot/ostree/deploy/.*-atomic.*/deploy(/.*)?
182 /
183 /initrd
184
187 SELinux requires files to have an extended attribute to define the file
188 type.
189 You can see the context of a file using the -Z option to ls
191 Policy governs the access confined processes have to these files.
193 SELinux blkmapd policy is very flexible allowing users to setup their
194 blkmapd processes in as secure a method as possible.
195 STANDARD FILE CONTEXT
197 SELinux defines the file context types for the blkmapd, if you wanted
199 to store files with these types in a diffent paths, you need to execute
200 the semanage command to sepecify alternate labeling and then use
201 restorecon to put the labels on disk.
202 semanage fcontext -a -t blkmapd_var_run_t '/srv/myblkmapd_con‐
204 tent(/.*)?'
205 restorecon -R -v /srv/myblkmapd_content
206 Note: SELinux often uses regular expressions to specify labels that
208 match multiple files.
209 The following file types are defined for blkmapd:
211 blkmapd_exec_t
215 - Set files with the blkmapd_exec_t type, if you want to transition an
217 executable to the blkmapd_t domain.
218 blkmapd_initrc_exec_t
222 - Set files with the blkmapd_initrc_exec_t type, if you want to transi‐
224 tion an executable to the blkmapd_initrc_t domain.
225 blkmapd_var_run_t
229 - Set files with the blkmapd_var_run_t type, if you want to store the
231 blkmapd files under the /run or /var/run directory.
232 Note: File context can be temporarily modified with the chcon command.
236 If you want to permanently change the file context you need to use the
237 semanage fcontext command. This will modify the SELinux labeling data‐
238 base. You will need to use restorecon to apply the labels.
239
242 semanage fcontext can also be used to manipulate default file context
243 mappings.
244 semanage permissive can also be used to manipulate whether or not a
246 process type is permissive.
247 semanage module can also be used to enable/disable/install/remove pol‐
249 icy modules.
250 semanage boolean can also be used to manipulate the booleans
252 system-config-selinux is a GUI tool available to customize SELinux pol‐
255 icy settings.
256
259 This manual page was auto-generated using sepolicy manpage .
260
263 selinux(8), blkmapd(8), semanage(8), restorecon(8), chcon(1), sepol‐
264 icy(8) , setsebool(8)
265blkmapd 19-04-25 blkmapd_selinux(8)