1#!/bin/sh /etc/rc.common
2# Copyright (c) 2011-2012 OpenWrt.org
3
4START=80
5
6USE_PROCD=1
7PROG=/usr/sbin/relayd
8
9validate_proto_relayd()
10{
11	uci_validate_section network "interface" "${1}" \
12		'network:list(string)' \
13		'expiry:uinteger:30' \
14		'retry:uinteger:5' \
15		'table:range(0, 65535):16800' \
16		'forward_bcast:bool:1' \
17		'forward_dhcp:bool:1'
18}
19
20resolve_ifname() {
21	grep -qs "^ *$1:" /proc/net/dev && {
22		procd_append_param command -I "$1"
23		append ifaces "$1"
24	}
25}
26
27resolve_network() {
28	local ifn
29	fixup_interface "$1"
30	config_get ifn "$1" ifname
31	[ -z "$ifn" ] && return 1
32	resolve_ifname "$ifn"
33}
34
35start_relay() {
36	local cfg="$1"
37
38	local args=""
39	local ifaces=""
40
41	config_get proto "$cfg" proto
42	[ "$proto" = "relay" ] || return 0
43
44	config_get_bool disabled "$cfg" disabled 0
45	[ "$disabled" -gt 0 ] && return 0
46
47	SERVICE_DAEMONIZE=1
48	SERVICE_WRITE_PID=1
49	SERVICE_PID_FILE="/var/run/relay-$cfg.pid"
50	[ -f "$SERVICE_PID_FILE" ] && {
51		if grep -q relayd "/proc/$(cat $SERVICE_PID_FILE)/cmdline"; then
52			return 0
53		else
54			rm -f "$SERVICE_PID_FILE"
55		fi
56	}
57
58	procd_open_instance
59	procd_set_param command "$PROG"
60
61	local net networks
62	config_get networks "$cfg" network
63	for net in $networks; do
64		resolve_network "$net" || {
65			return 1
66		}
67	done
68
69	local ifn ifnames
70	config_get ifnames "$cfg" ifname
71	for ifn in $ifnames; do
72		resolve_ifname "$ifn"
73	done
74
75	local ipaddr
76	config_get ipaddr "$cfg" ipaddr
77	[ -n "$ipaddr" ] && procd_append_param command -L "$ipaddr"
78
79	local gateway
80	config_get gateway "$cfg" gateway
81	[ -n "$gateway" ] && procd_append_param command -G "$gateway"
82
83	local expiry # = 30
84	config_get expiry "$cfg" expiry
85	[ -n "$expiry" ] && procd_append_param command "$expiry"
86
87	local retry # = 5
88	config_get retry "$cfg" retry
89	[ -n "$retry" ] && procd_append_param command -p "$retry"
90
91	local table # = 16800
92	config_get table "$cfg" table
93	[ -n "$table" ] && procd_append_param command -T "$table"
94
95	local fwd_bcast # = 1
96	config_get_bool fwd_bcast "$cfg" forward_bcast 1
97	[ $fwd_bcast -eq 1 ] && procd_append_param command "-B"
98
99	local fwd_dhcp # = 1
100	config_get_bool fwd_dhcp "$cfg" forward_dhcp 1
101	[ $fwd_dhcp -eq 1 ] && procd_append_param command "-D"
102
103	procd_close_instance
104}
105
106service_triggers()
107{
108	procd_add_reload_trigger "network"
109}
110
111start_service() {
112	include /lib/network
113	config_load network
114	config_foreach start_relay interface
115}
116