xref: /freebsd/usr.sbin/bsdconfig/security/kern_securelevel (revision d0b2dbfa0ecf2bbc9709efc5e20baf8e4b44bbbf)
1#!/bin/sh
2#-
3# Copyright (c) 2012-2013 Devin Teske
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27#
28############################################################ INCLUDES
29
30BSDCFG_SHARE="/usr/share/bsdconfig"
31. $BSDCFG_SHARE/common.subr || exit 1
32f_dprintf "%s: loading includes..." "$0"
33f_include $BSDCFG_SHARE/dialog.subr
34f_include $BSDCFG_SHARE/mustberoot.subr
35f_include $BSDCFG_SHARE/sysrc.subr
36
37BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="130.security"
38f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
39
40SECURELEVEL_HELPFILE=$BSDCFG_LIBE/$APP_DIR/include/securelevel.hlp
41
42f_index_menusel_keyword $BSDCFG_LIBE/$APP_DIR/INDEX "$pgm" ipgm &&
43	pgm="${ipgm:-$pgm}"
44
45############################################################ FUNCTIONS
46
47# dialog_menu_main
48#
49# Display the dialog(1)-based application main menu.
50#
51dialog_menu_main()
52{
53	local prompt="$msg_securelevels_menu_text"
54	local menu_list="
55		'$msg_disabled'       '$msg_disable_securelevels'
56		'$msg_secure'         '$msg_secure_mode'
57		'$msg_highly_secure'  '$msg_highly_secure_mode'
58		'$msg_network_secure' '$msg_network_secure_mode'
59	" # END-QUOTE
60	local defaultitem= # Calculated below
61	local hline="$hline_select_securelevel_to_operate_at"
62
63	local height width rows
64	eval f_dialog_menu_size height width rows \
65	                        \"\$DIALOG_TITLE\"     \
66	                        \"\$DIALOG_BACKTITLE\" \
67	                        \"\$prompt\"           \
68	                        \"\$hline\"            \
69	                        $menu_list
70
71	case "$( f_sysrc_get kern_securelevel_enable )" in
72	[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
73		case "$( f_sysrc_get kern_securelevel )" in
74		1) defaultitem="$msg_secure"         ;;
75		2) defaultitem="$msg_highly_secure"  ;;
76		3) defaultitem="$msg_network_secure" ;;
77		esac ;;
78	*)
79		defaultitem="$msg_disabled"
80	esac
81
82	local menu_choice
83	menu_choice=$( eval $DIALOG \
84		--title \"\$DIALOG_TITLE\"         \
85		--backtitle \"\$DIALOG_BACKTITLE\" \
86		--hline \"\$hline\"                \
87		--ok-label \"\$msg_ok\"            \
88		--cancel-label \"\$msg_cancel\"    \
89		--help-button                      \
90		--help-label \"\$msg_help\"        \
91		${USE_XDIALOG:+--help \"\"}        \
92		--default-item \"\$defaultitem\"   \
93		--menu \"\$prompt\"                \
94		$height $width $rows               \
95		$menu_list                         \
96		2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
97	)
98	local retval=$?
99	f_dialog_menutag_store -s "$menu_choice"
100	return $retval
101}
102
103############################################################ MAIN
104
105# Incorporate rc-file if it exists
106[ -f "$HOME/.bsdconfigrc" ] && f_include "$HOME/.bsdconfigrc"
107
108#
109# Process command-line arguments
110#
111while getopts h$GETOPTS_STDARGS flag; do
112	case "$flag" in
113	h|\?) f_usage $BSDCFG_LIBE/$APP_DIR/USAGE "PROGRAM_NAME" "$pgm" ;;
114	esac
115done
116shift $(( $OPTIND - 1 ))
117
118#
119# Initialize
120#
121f_dialog_title "$msg_securelevels_menu_title"
122f_dialog_backtitle "${ipgm:+bsdconfig }$pgm"
123f_mustberoot_init
124
125#
126# Launch application main menu (loop for additional `Help' button)
127#
128while :; do
129	dialog_menu_main
130	retval=$?
131	f_dialog_menutag_fetch mtag
132
133	if [ $retval -eq $DIALOG_HELP ]; then
134		f_show_help "$SECURELEVEL_HELPFILE"
135		continue
136	elif [ $retval -ne $DIALOG_OK ]; then
137		f_die
138	fi
139
140	break
141done
142
143case "$mtag" in
144"$msg_disabled")
145	f_eval_catch "$0" f_sysrc_set \
146		'f_sysrc_set kern_securelevel_enable NO' || f_die
147	;;
148"$msg_secure")
149	f_eval_catch "$0" f_sysrc_set \
150		'f_sysrc_set kern_securelevel_enable YES' || f_die
151	f_eval_catch "$0" f_sysrc_set \
152		'f_sysrc_set kern_securelevel 1' || f_die
153	;;
154"$msg_highly_secure")
155	f_eval_catch "$0" f_sysrc_set \
156		'f_sysrc_set kern_securelevel_enable YES' || f_die
157	f_eval_catch "$0" f_sysrc_set \
158		'f_sysrc_set kern_securelevel 2' || f_die
159	;;
160"$msg_network_secure")
161	f_eval_catch "$0" f_sysrc_set \
162		'f_sysrc_set kern_securelevel_enable YES' || f_die
163	f_eval_catch "$0" f_sysrc_set \
164		'f_sysrc_set kern_securelevel 3' || f_die
165	;;
166*)
167	f_die 1 "$msg_unknown_kern_securelevel_selection"
168esac
169
170exit $SUCCESS
171
172################################################################################
173# END
174################################################################################
175