blob: e0c9113498167c2fa912d7d168675116950bad16 (
about) (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
|
; -*- lisp -*-
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
;; This is a specification for SELinux 2.7 written in the SELinux Common
;; Intermediate Language (CIL). It refers to types that must be defined in
;; the system's base policy.
(block guix_daemon
;; Require existing types
(typeattributeset cil_gen_require init_t)
(typeattributeset cil_gen_require tmp_t)
(typeattributeset cil_gen_require nscd_var_run_t)
(typeattributeset cil_gen_require var_log_t)
(typeattributeset cil_gen_require domain)
;; Declare own types
(type guix_daemon_t)
(roletype object_r guix_daemon_t)
(type guix_daemon_conf_t)
(roletype object_r guix_daemon_conf_t)
(type guix_daemon_exec_t)
(roletype object_r guix_daemon_exec_t)
(type guix_daemon_socket_t)
(roletype object_r guix_daemon_socket_t)
(type guix_store_content_t)
(roletype object_r guix_store_content_t)
(type guix_profiles_t)
(roletype object_r guix_profiles_t)
;; These types are domains, thereby allowing process rules
(typeattributeset domain (guix_daemon_t guix_daemon_exec_t))
(level low (s0))
;; When a process in init_t or guix_store_content_t spawns a
;; guix_daemon_exec_t process, let it run in the guix_daemon_t context
(typetransition init_t guix_daemon_exec_t
process guix_daemon_t)
(typetransition guix_store_content_t guix_daemon_exec_t
process guix_daemon_t)
;; Permit communication with NSCD
(allow guix_daemon_t
nscd_var_run_t
(file (map read)))
(allow guix_daemon_t
nscd_var_run_t
(dir (search)))
(allow guix_daemon_t
nscd_var_run_t
(sock_file (write)))
(allow guix_daemon_t
nscd_t
(fd (use)))
(allow guix_daemon_t
nscd_t
(unix_stream_socket (connectto)))
;; Permit logging and temp file access
(allow guix_daemon_t
tmp_t
(lnk_file (setattr unlink)))
(allow guix_daemon_t
tmp_t
(dir (create
rmdir
add_name remove_name
open read write
getattr setattr
search)))
(allow guix_daemon_t
var_log_t
(file (create getattr open write)))
(allow guix_daemon_t
var_log_t
(dir (getattr write add_name)))
(allow guix_daemon_t
var_run_t
(lnk_file (read)))
(allow guix_daemon_t
var_run_t
(dir (search)))
;; Spawning processes, execute helpers
(allow guix_daemon_t
self
(process (fork)))
(allow guix_daemon_t
guix_daemon_exec_t
(file (execute execute_no_trans read open)))
;; TODO: unknown
(allow guix_daemon_t
root_t
(dir (mounton)))
(allow guix_daemon_t
fs_t
(filesystem (getattr)))
(allow guix_daemon_conf_t
fs_t
(filesystem (associate)))
;; Build isolation
(allow guix_daemon_t
guix_store_content_t
(file (mounton)))
(allow guix_store_content_t
fs_t
(filesystem (associate)))
(allow guix_daemon_t
guix_store_content_t
(dir (mounton)))
(allow guix_daemon_t
guix_daemon_t
(capability (net_admin
fsetid fowner
chown setuid setgid
dac_override dac_read_search
sys_chroot)))
(allow guix_daemon_t
fs_t
(filesystem (unmount)))
(allow guix_daemon_t
devpts_t
(filesystem (mount)))
(allow guix_daemon_t
devpts_t
(chr_file (setattr getattr)))
(allow guix_daemon_t
tmpfs_t
(filesystem (mount)))
(allow guix_daemon_t
tmpfs_t
(dir (getattr)))
(allow guix_daemon_t
proc_t
(filesystem (mount)))
(allow guix_daemon_t
null_device_t
(chr_file (getattr open read write)))
(allow guix_daemon_t
kvm_device_t
(chr_file (getattr)))
(allow guix_daemon_t
zero_device_t
(chr_file (getattr)))
(allow guix_daemon_t
urandom_device_t
(chr_file (getattr)))
(allow guix_daemon_t
random_device_t
(chr_file (getattr)))
(allow guix_daemon_t
devtty_t
(chr_file (getattr)))
;; Access to store items
(allow guix_daemon_t
guix_store_content_t
(dir (reparent
create
getattr setattr
search rename
add_name remove_name
open write
rmdir)))
(allow guix_daemon_t
guix_store_content_t
(file (create
lock
setattr getattr
execute execute_no_trans
link unlink
map
rename
open read write)))
(allow guix_daemon_t
guix_store_content_t
(lnk_file (create
getattr setattr
link unlink
read
rename)))
;; Access to configuration files and directories
(allow guix_daemon_t
guix_daemon_conf_t
(dir (search
setattr getattr
add_name remove_name
open read write)))
(allow guix_daemon_t
guix_daemon_conf_t
(file (create
lock
map
getattr setattr
unlink
open read write)))
(allow guix_daemon_t
guix_daemon_conf_t
(lnk_file (create getattr rename unlink)))
;; Access to profiles
(allow guix_daemon_t
guix_profiles_t
(dir (getattr setattr read open)))
(allow guix_daemon_t
guix_profiles_t
(lnk_file (read getattr)))
;; Access to profile links in the home directory
;; TODO: allow access to profile links *anywhere* on the filesystem
(allow guix_daemon_t
user_home_t
(lnk_file (read getattr)))
(allow guix_daemon_t
user_home_t
(dir (search)))
;; Socket operations
(allow guix_daemon_t
init_t
(fd (use)))
(allow guix_daemon_t
init_t
(unix_stream_socket (write)))
(allow guix_daemon_t
guix_daemon_conf_t
(unix_stream_socket (listen)))
(allow guix_daemon_t
guix_daemon_conf_t
(sock_file (create unlink)))
(allow guix_daemon_t
self
(unix_stream_socket (create
read write
connect bind accept
getopt setopt)))
(allow guix_daemon_t
self
(fifo_file (write read)))
(allow guix_daemon_t
self
(udp_socket (ioctl create)))
;; Label file system
(filecon "@guix_sysconfdir@/guix(/.*)?"
any (system_u object_r guix_daemon_conf_t (low low)))
(filecon "@guix_localstatedir@/guix(/.*)?"
any (system_u object_r guix_daemon_conf_t (low low)))
(filecon "@guix_localstatedir@/guix/profiles(/.*)?"
any (system_u object_r guix_profiles_t (low low)))
(filecon "/gnu"
dir (unconfined_u object_r guix_store_content_t (low low)))
(filecon "@storedir@(/.+)?"
any (unconfined_u object_r guix_store_content_t (low low)))
(filecon "@storedir@/[^/]+/.+"
any (unconfined_u object_r guix_store_content_t (low low)))
(filecon "@prefix@/bin/guix-daemon"
file (system_u object_r guix_daemon_exec_t (low low)))
(filecon "@storedir@/.+-(guix-.+|profile)/bin/guix-daemon"
file (system_u object_r guix_daemon_exec_t (low low)))
(filecon "@guix_localstatedir@/guix/daemon-socket/socket"
any (system_u object_r guix_daemon_socket_t (low low))))
|
