1pppd_selinux(8) SELinux Policy pppd pppd_selinux(8)
2
3
4
6 pppd_selinux - Security Enhanced Linux Policy for the pppd processes
7
9 Security-Enhanced Linux secures the pppd processes via flexible manda‐
10 tory access control.
11
12 The pppd processes execute with the pppd_t SELinux type. You can check
13 if you have these processes running by executing the ps command with
14 the -Z qualifier.
15
16 For example:
17
18 ps -eZ | grep pppd_t
19
20
21
23 The pppd_t SELinux type can be entered via the pppd_exec_t file type.
24
25 The default entrypoint paths for the pppd_t domain are the following:
26
27 /usr/sbin/pppd, /sbin/ppp-watch, /usr/sbin/ipppd, /sbin/pppoe-server,
28 /usr/sbin/ppp-watch, /usr/sbin/pppoe-server
29
31 SELinux defines process types (domains) for each process running on the
32 system
33
34 You can see the context of a process using the -Z option to ps
35
36 Policy governs the access confined processes have to files. SELinux
37 pppd policy is very flexible allowing users to setup their pppd pro‐
38 cesses in as secure a method as possible.
39
40 The following process types are defined for pppd:
41
42 pppd_t
43
44 Note: semanage permissive -a pppd_t can be used to make the process
45 type pppd_t permissive. SELinux does not deny access to permissive
46 process types, but the AVC (SELinux denials) messages are still gener‐
47 ated.
48
49
51 SELinux policy is customizable based on least access required. pppd
52 policy is extremely flexible and has several booleans that allow you to
53 manipulate the policy and run pppd with the tightest access possible.
54
55
56
57 If you want to allow pppd to load kernel modules for certain modems,
58 you must turn on the pppd_can_insmod boolean. Disabled by default.
59
60 setsebool -P pppd_can_insmod 1
61
62
63
64 If you want to allow pppd to be run for a regular user, you must turn
65 on the pppd_for_user boolean. Disabled by default.
66
67 setsebool -P pppd_for_user 1
68
69
70
71 If you want to allow all domains to execute in fips_mode, you must turn
72 on the fips_mode boolean. Enabled by default.
73
74 setsebool -P fips_mode 1
75
76
77
79 The SELinux process type pppd_t can manage files labeled with the fol‐
80 lowing file types. The paths listed are the default paths for these
81 file types. Note the processes UID still need to have DAC permissions.
82
83 cluster_conf_t
84
85 /etc/cluster(/.*)?
86
87 cluster_var_lib_t
88
89 /var/lib/pcsd(/.*)?
90 /var/lib/cluster(/.*)?
91 /var/lib/openais(/.*)?
92 /var/lib/pengine(/.*)?
93 /var/lib/corosync(/.*)?
94 /usr/lib/heartbeat(/.*)?
95 /var/lib/heartbeat(/.*)?
96 /var/lib/pacemaker(/.*)?
97
98 cluster_var_run_t
99
100 /var/run/crm(/.*)?
101 /var/run/cman_.*
102 /var/run/rsctmp(/.*)?
103 /var/run/aisexec.*
104 /var/run/heartbeat(/.*)?
105 /var/run/pcsd-ruby.socket
106 /var/run/corosync-qnetd(/.*)?
107 /var/run/corosync-qdevice(/.*)?
108 /var/run/corosync.pid
109 /var/run/cpglockd.pid
110 /var/run/rgmanager.pid
111 /var/run/cluster/rgmanager.sk
112
113 faillog_t
114
115 /var/log/btmp.*
116 /var/log/faillog.*
117 /var/log/tallylog.*
118 /var/run/faillock(/.*)?
119
120 krb5_host_rcache_t
121
122 /var/tmp/krb5_0.rcache2
123 /var/cache/krb5rcache(/.*)?
124 /var/tmp/nfs_0
125 /var/tmp/DNS_25
126 /var/tmp/host_0
127 /var/tmp/imap_0
128 /var/tmp/HTTP_23
129 /var/tmp/HTTP_48
130 /var/tmp/ldap_55
131 /var/tmp/ldap_487
132 /var/tmp/ldapmap1_0
133
134 pppd_etc_rw_t
135
136 /etc/ppp(/.*)?
137 /etc/ppp/peers(/.*)?
138 /etc/ppp/resolv.conf
139
140 pppd_lock_t
141
142 /var/lock/ppp(/.*)?
143
144 pppd_log_t
145
146 /var/log/ppp(/.*)?
147 /var/log/ppp-connect-errors.*
148
149 pppd_tmp_t
150
151
152 pppd_var_run_t
153
154 /var/run/(i)?ppp.*pid[^/]*
155 /var/run/ppp(/.*)?
156 /var/run/pppd[0-9]*.tdb
157
158 root_t
159
160 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
161 /
162 /initrd
163
164 wtmp_t
165
166 /var/log/wtmp.*
167
168
170 SELinux requires files to have an extended attribute to define the file
171 type.
172
173 You can see the context of a file using the -Z option to ls
174
175 Policy governs the access confined processes have to these files.
176 SELinux pppd policy is very flexible allowing users to setup their pppd
177 processes in as secure a method as possible.
178
179 EQUIVALENCE DIRECTORIES
180
181
182 pppd policy stores data with multiple different file context types un‐
183 der the /var/log/ppp directory. If you would like to store the data in
184 a different directory you can use the semanage command to create an
185 equivalence mapping. If you wanted to store this data under the /srv
186 directory you would execute the following command:
187
188 semanage fcontext -a -e /var/log/ppp /srv/ppp
189 restorecon -R -v /srv/ppp
190
191 pppd policy stores data with multiple different file context types un‐
192 der the /var/run/ppp directory. If you would like to store the data in
193 a different directory you can use the semanage command to create an
194 equivalence mapping. If you wanted to store this data under the /srv
195 directory you would execute the following command:
196
197 semanage fcontext -a -e /var/run/ppp /srv/ppp
198 restorecon -R -v /srv/ppp
199
200 STANDARD FILE CONTEXT
201
202 SELinux defines the file context types for the pppd, if you wanted to
203 store files with these types in a diffent paths, you need to execute
204 the semanage command to sepecify alternate labeling and then use re‐
205 storecon to put the labels on disk.
206
207 semanage fcontext -a -t pppd_var_run_t '/srv/mypppd_content(/.*)?'
208 restorecon -R -v /srv/mypppd_content
209
210 Note: SELinux often uses regular expressions to specify labels that
211 match multiple files.
212
213 The following file types are defined for pppd:
214
215
216
217 pppd_etc_rw_t
218
219 - Set files with the pppd_etc_rw_t type, if you want to treat the files
220 as pppd etc read/write content.
221
222
223 Paths:
224 /etc/ppp(/.*)?, /etc/ppp/peers(/.*)?, /etc/ppp/resolv.conf
225
226
227 pppd_etc_t
228
229 - Set files with the pppd_etc_t type, if you want to store pppd files
230 in the /etc directories.
231
232
233 Paths:
234 /root/.ppprc, /etc/ppp
235
236
237 pppd_exec_t
238
239 - Set files with the pppd_exec_t type, if you want to transition an ex‐
240 ecutable to the pppd_t domain.
241
242
243 Paths:
244 /usr/sbin/pppd, /sbin/ppp-watch, /usr/sbin/ipppd, /sbin/pppoe-
245 server, /usr/sbin/ppp-watch, /usr/sbin/pppoe-server
246
247
248 pppd_initrc_exec_t
249
250 - Set files with the pppd_initrc_exec_t type, if you want to transition
251 an executable to the pppd_initrc_t domain.
252
253
254 Paths:
255 /etc/ppp/(auth|ip(v6|x)?)-(up|down), /etc/rc.d/init.d/ppp
256
257
258 pppd_lock_t
259
260 - Set files with the pppd_lock_t type, if you want to treat the files
261 as pppd lock data, stored under the /var/lock directory
262
263
264
265 pppd_log_t
266
267 - Set files with the pppd_log_t type, if you want to treat the data as
268 pppd log data, usually stored under the /var/log directory.
269
270
271 Paths:
272 /var/log/ppp(/.*)?, /var/log/ppp-connect-errors.*
273
274
275 pppd_secret_t
276
277 - Set files with the pppd_secret_t type, if you want to treat the files
278 as pppd se secret data.
279
280
281
282 pppd_tmp_t
283
284 - Set files with the pppd_tmp_t type, if you want to store pppd tempo‐
285 rary files in the /tmp directories.
286
287
288
289 pppd_unit_file_t
290
291 - Set files with the pppd_unit_file_t type, if you want to treat the
292 files as pppd unit content.
293
294
295
296 pppd_var_run_t
297
298 - Set files with the pppd_var_run_t type, if you want to store the pppd
299 files under the /run or /var/run directory.
300
301
302 Paths:
303 /var/run/(i)?ppp.*pid[^/]*, /var/run/ppp(/.*)?,
304 /var/run/pppd[0-9]*.tdb
305
306
307 Note: File context can be temporarily modified with the chcon command.
308 If you want to permanently change the file context you need to use the
309 semanage fcontext command. This will modify the SELinux labeling data‐
310 base. You will need to use restorecon to apply the labels.
311
312
314 semanage fcontext can also be used to manipulate default file context
315 mappings.
316
317 semanage permissive can also be used to manipulate whether or not a
318 process type is permissive.
319
320 semanage module can also be used to enable/disable/install/remove pol‐
321 icy modules.
322
323 semanage boolean can also be used to manipulate the booleans
324
325
326 system-config-selinux is a GUI tool available to customize SELinux pol‐
327 icy settings.
328
329
331 This manual page was auto-generated using sepolicy manpage .
332
333
335 selinux(8), pppd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
336 setsebool(8)
337
338
339
340pppd 21-06-09 pppd_selinux(8)