openvpn: add extra respawn parameters
[lede.git] / package / network / services / openvpn / files / openvpn.init
1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2008-2013 OpenWrt.org
3 # Copyright (C) 2008 Jo-Philipp Wich
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6
7 START=90
8 STOP=10
9
10 USE_PROCD=1
11 PROG=/usr/sbin/openvpn
12
13 LIST_SEP="
14 "
15
16 UCI_STARTED=
17 UCI_DISABLED=
18
19 append_param() {
20         local s="$1"
21         local v="$2"
22         case "$v" in
23                 *_*_*_*) v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_} ;;
24                 *_*_*)   v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_} ;;
25                 *_*)     v=${v%%_*}-${v#*_} ;;
26         esac
27         echo -n "$v" >> "/var/etc/openvpn-$s.conf"
28         return 0
29 }
30
31 append_bools() {
32         local p; local v; local s="$1"; shift
33         for p in $*; do
34                 config_get_bool v "$s" "$p"
35                 [ "$v" = 1 ] && append_param "$s" "$p" && echo >> "/var/etc/openvpn-$s.conf"
36         done
37 }
38
39 append_params() {
40         local p; local v; local s="$1"; shift
41         for p in $*; do
42                 config_get v "$s" "$p"
43                 IFS="$LIST_SEP"
44                 for v in $v; do
45                         [ -n "$v" ] && [ "$p" != "push" ] && append_param "$s" "$p" && echo " $v" >> "/var/etc/openvpn-$s.conf"
46                         [ -n "$v" ] && [ "$p" == "push" ] && append_param "$s" "$p" && echo " \"$v\"" >> "/var/etc/openvpn-$s.conf"
47                 done
48                 unset IFS
49         done
50 }
51
52 section_enabled() {
53         config_get_bool enable  "$1" 'enable'  0
54         config_get_bool enabled "$1" 'enabled' 0
55         [ $enable -gt 0 ] || [ $enabled -gt 0 ]
56 }
57
58 openvpn_add_instance() {
59         local name="$1"
60         local dir="$2"
61         local conf="$3"
62
63         procd_open_instance
64         procd_set_param command "$PROG" \
65                 --syslog "openvpn($name)" \
66                 --status "/var/run/openvpn.$name.status" \
67                 --cd "$dir" \
68                 --config "$conf"
69         procd_set_param file "$dir/$conf"
70         procd_set_param respawn
71         procd_append_param respawn 3600
72         procd_append_param respawn 5
73         procd_append_param respawn -1
74         procd_close_instance
75 }
76
77 start_instance() {
78         local s="$1"
79
80         config_get config "$s" config
81         config="${config:+$(readlink -f "$config")}"
82
83         section_enabled "$s" || {
84                 append UCI_DISABLED "$config" "$LIST_SEP"
85                 return 1
86         }
87
88         [ ! -d "/var/run" ] && mkdir -p "/var/run"
89
90         if [ ! -z "$config" ]; then
91                 append UCI_STARTED "$config" "$LIST_SEP"
92                 openvpn_add_instance "$s" "${config%/*}" "$config"
93                 return
94         fi
95
96         [ ! -d "/var/etc" ] && mkdir -p "/var/etc"
97         [ -f "/var/etc/openvpn-$s.conf" ] && rm "/var/etc/openvpn-$s.conf"
98
99         append_bools "$s" $OPENVPN_BOOLS
100         append_params "$s" $OPENVPN_PARAMS
101
102         openvpn_add_instance "$s" "/var/etc" "openvpn-$s.conf"
103 }
104
105 start_service() {
106         . /usr/share/openvpn/openvpn.options
107         config_load 'openvpn'
108         config_foreach start_instance 'openvpn'
109
110         local path name
111         for path in /etc/openvpn/*.conf; do
112                 if [ -f "$path" ]; then
113                         name="${path##*/}"; name="${name%.conf}"
114
115                         # don't start configs again that are already started by uci
116                         if echo "$UCI_STARTED" | grep -qxF "$path"; then
117                                 continue
118
119                         # don't start configs which are set to disabled in uci
120                         elif echo "$UCI_DISABLED" | grep -qxF "$path"; then
121                                 logger -t openvpn "$name.conf is disabled in /etc/config/openvpn"
122                                 continue
123                         fi
124
125                         openvpn_add_instance "$name" "${path%/*}" "$path"
126                 fi
127         done
128 }
129
130 service_triggers() {
131         procd_add_reload_trigger openvpn
132 }