1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 set -e
4 if [ `id -u` -ne 0 ]; then
5 echo "$0: must be root to install the selinux policy"
6 exit 1
7 fi
8
9 SF=`which setfiles`
10 if [ $? -eq 1 ]; then
11 echo "Could not find setfiles"
12 echo "Do you have policycoreutils installed?"
13 exit 1
14 fi
15
16 CP=`which checkpolicy`
17 if [ $? -eq 1 ]; then
18 echo "Could not find checkpolicy"
19 echo "Do you have checkpolicy installed?"
20 exit 1
21 fi
22 VERS=`$CP -V | awk '{print $1}'`
23
24 ENABLED=`which selinuxenabled`
25 if [ $? -eq 1 ]; then
26 echo "Could not find selinuxenabled"
27 echo "Do you have libselinux-utils installed?"
28 exit 1
29 fi
30
31 if selinuxenabled; then
32 echo "SELinux is already enabled"
33 echo "This prevents safely relabeling all files."
34 echo "Boot with selinux=0 on the kernel command-line."
35 exit 1
36 fi
37
38 cd mdp
39 ./mdp -m policy.conf file_contexts
40 $CP -U allow -M -o policy.$VERS policy.conf
41
42 mkdir -p /etc/selinux/dummy/policy
43 mkdir -p /etc/selinux/dummy/contexts/files
44
45 echo "__default__:user_u:s0" > /etc/selinux/dummy/seusers
46 echo "base_r:base_t:s0" > /etc/selinux/dummy/contexts/failsafe_context
47 echo "base_r:base_t:s0 base_r:base_t:s0" > /etc/selinux/dummy/default_contexts
48 cat > /etc/selinux/dummy/contexts/x_contexts <<EOF
49 client * user_u:base_r:base_t:s0
50 property * user_u:object_r:base_t:s0
51 extension * user_u:object_r:base_t:s0
52 selection * user_u:object_r:base_t:s0
53 event * user_u:object_r:base_t:s0
54 EOF
55 touch /etc/selinux/dummy/contexts/virtual_domain_context
56 touch /etc/selinux/dummy/contexts/virtual_image_context
57
58 cp file_contexts /etc/selinux/dummy/contexts/files
59 cp dbus_contexts /etc/selinux/dummy/contexts
60 cp policy.$VERS /etc/selinux/dummy/policy
61 FC_FILE=/etc/selinux/dummy/contexts/files/file_contexts
62
63 if [ ! -d /etc/selinux ]; then
64 mkdir -p /etc/selinux
65 fi
66 if [ -f /etc/selinux/config ]; then
67 echo "/etc/selinux/config exists, moving to /etc/selinux/config.bak."
68 mv /etc/selinux/config /etc/selinux/config.bak
69 fi
70 echo "Creating new /etc/selinux/config for dummy policy."
71 cat > /etc/selinux/config << EOF
72 SELINUX=permissive
73 SELINUXTYPE=dummy
74 EOF
75
76 cd /etc/selinux/dummy/contexts/files
77 $SF -F file_contexts /
78
79 mounts=`cat /proc/$$/mounts | \
80 grep -E "ext[234]|jfs|xfs|reiserfs|jffs2|gfs2|btrfs|f2fs|ocfs2" | \
81 awk '{ print $2 '}`
82 $SF -F file_contexts $mounts
83
84 echo "-F" > /.autorelabel
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