summaryrefslogtreecommitdiff
path: root/pcr/openrc-net/ufw-2.initd
blob: 1ffd1c596c92ca6f152a06909268695473897324 (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
#!/sbin/runscript
# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-firewall/ufw/files/ufw-2.initd,v 1.2 2012/06/13 21:14:52 thev00d00 Exp $

depend() {
	before net
	provide firewall
}

start() {
	ebegin "Starting ufw"
	_source_file || { eend $?; return $?; }

	local enabled_in_cfg ret
	_check_if_enabled_in_cfg
	enabled_in_cfg=$?

	# Avoid "Firewall already started, use 'force-reload'" message that
	# appears if `ufw enable' had been run before start().
	if _status_quiet; then
		eend 0
		return
	fi

	# The ufw_start function does the same: if ufw is disabled using `ufw disable',
	# ufw_start would not start ufw and return 0, so let's handle this case.
	case $enabled_in_cfg in
	0)
		ufw_start
		ret=$?
		eend $ret "Failed to start ufw."
		;;
	1)
		# see /etc/conf.d/<name>
		if [ "${ufw_nonfatal_if_disabled:-no}" != "yes" ]; then
			ret=1
			eend $ret "Not starting firewall (not enabled), use \"ufw enable\" first."
		else
			ret=0
			eend 0
		fi
		;;
	2)
		ret=1
		eend $ret "Failed to start ufw."
		;;
	esac

	return $ret
}

stop() {
	ebegin "Stopping ufw"
	_source_file || { eend $?; return $?; }
	local enabled_in_cfg ret
	_check_if_enabled_in_cfg
	enabled_in_cfg=$?

	# Same as above (unless --force is passed to ufw_stop).
	case $enabled_in_cfg in
	0)
		ufw_stop
		ret=$?
		;;
	1)
		einfo "INFO: ufw is configured to be disabled"
		ufw_stop --force
		ret=$?
		;;
	2)
		ret=1
		;;
	esac

	eend $ret "Failed to stop ufw."
	return $ret
}

_status_quiet() {
	# return values: 0 - started, 1 - stopped, 2 - error
	# Does not execute _source_file.
	local ret
	ufw_status > /dev/null
	ret=$?
	# Return values for ufw_status come from /usr/share/ufw/ufw-init-functions.
	case $ret in
	0) return 0 ;;
	3) return 1 ;;
	*) return 2 ;;
	esac
}

_source_file() {
	local sourced_f="/usr/share/ufw/ufw-init-functions"
	if [ ! -f "$sourced_f" ]; then
		eerror "Cannot find file $sourced_f!"
		return 1
	fi

	local _path=$PATH
	if ! . "$sourced_f"; then
		# PATH can be broken here, fix it...
		PATH=$_path
		eerror "Error sourcing file $sourced_f"
		return 1
	fi

	if [ -z "$PATH" ]; then
		PATH=$_path
	else
		PATH="${PATH}:${_path}"
	fi
	return 0
}

_check_if_enabled_in_cfg() {
	# Check if user has enabled the firewall with "ufw enable".
	# Return 0 if firewall enabled in configuration file, 1 otherwise, 2 on error.

	local sourced_f="/etc/ufw/ufw.conf"
	if [ ! -f "$sourced_f" ]; then
		eerror "Cannot find file $sourced_f!"
		return 2
	fi

	if ! . "$sourced_f"; then
		eerror "Error sourcing file $sourced_f"
		return 2
	fi

	if [ "$ENABLED" = "yes" ] || [ "$ENABLED" = "YES" ]; then
		return 0
	else
		return 1
	fi
}