1. /usr/share/libubox/jshn.sh
2
3__network_ipaddr()
4{
5	local __var="$1"
6	local __iface="$2"
7	local __family="$3"
8	local __prefix="${4:-0}"
9
10	local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
11
12	json_load "${__tmp:-{}}"
13	json_get_type __tmp "ipv${__family}_address"
14
15	if [ "$__tmp" = array ]; then
16
17		json_select "ipv${__family}_address"
18		json_get_type __tmp 1
19
20		if [ "$__tmp" = object ]; then
21
22			json_select 1
23			json_get_var $__var address
24
25			[ $__prefix -gt 0 ] && {
26				json_get_var __tmp mask
27				eval "export -- \"$__var=\${$__var}/$__tmp\""
28			}
29
30			return 0
31		fi
32	fi
33
34	return 1
35}
36
37network_get_ipaddr()  { __network_ipaddr "$1" "$2" 4 0; }
38network_get_ipaddr6() { __network_ipaddr "$1" "$2" 6 0; }
39
40network_get_subnet()  { __network_ipaddr "$1" "$2" 4 1; }
41network_get_subnet6() { __network_ipaddr "$1" "$2" 6 1; }
42
43
44__network_gateway()
45{
46	local __var="$1"
47	local __iface="$2"
48	local __family="$3"
49
50	local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
51	local __idx=1
52
53	json_load "${__tmp:-{}}"
54
55	if json_get_type __tmp route && [ "$__tmp" = array ]; then
56
57		json_select route
58
59		while json_get_type __tmp "$__idx" && [ "$__tmp" = object ]; do
60
61			json_select "$((__idx++))"
62			json_get_var __tmp target
63
64			case "${__family}/${__tmp}" in
65				4/0.0.0.0|6/::)
66					json_get_var "$__var" nexthop
67					return $?
68				;;
69			esac
70
71			json_select ".."
72
73		done
74	fi
75
76	return 1
77}
78
79network_get_gateway()  { __network_gateway "$1" "$2" 4; }
80network_get_gateway6() { __network_gateway "$1" "$2" 6; }
81
82
83__network_dns() {
84	local __var="$1"
85	local __iface="$2"
86	local __field="$3"
87
88	local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
89	local __dns=""
90	local __idx=1
91
92	json_load "${__tmp:-{}}"
93
94	if json_get_type __tmp "$__field" && [ "$__tmp" = array ]; then
95
96		json_select "$__field"
97
98		while json_get_type __tmp "$__idx" && [ "$__tmp" = string ]; do
99
100			json_get_var __tmp "$((__idx++))"
101			__dns="${__dns:+$__dns }$__tmp"
102
103		done
104	fi
105
106	eval "export -- \"$__var=$__dns\""
107	[ -n "$__dns" ]
108}
109
110network_get_dnsserver() { __network_dns "$1" "$2" dns_server; }
111network_get_dnssearch() { __network_dns "$1" "$2" dns_search; }
112
113
114__network_wan() {
115	local __var="$1"
116	local __family="$2"
117	local __iface
118
119	for __iface in $(ubus list | sed -ne 's/^network\.interface\.//p'); do
120		if __network_gateway "$__var" "$__iface" "$__family"; then
121			eval "export -- \"$__var=$__iface\""
122			return 0
123		fi
124	done
125
126	eval "export -- \"$__var=\""
127	return 1
128}
129
130network_find_wan()  { __network_wan "$1" 4; }
131network_find_wan6() { __network_wan "$1" 6; }
132
133
134__network_device()
135{
136	local __var="$1"
137	local __iface="$2"
138	local __field="$3"
139
140	local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
141	[ -n "$__tmp" ] || return 1
142
143	json_load "$__tmp"
144	json_get_var "$__var" "$__field"
145}
146
147network_is_up()
148{
149	local __up
150	__network_device __up "$1" up && [ $__up -eq 1 ]
151}
152
153network_get_device()  { __network_device "$1" "$2" l3_device; }
154network_get_physdev() { __network_device "$1" "$2" device;    }
155
156
157__network_defer()
158{
159	local __device="$1"
160	local __defer="$2"
161
162	json_init
163	json_add_string name "$__device"
164	json_add_boolean defer "$__defer"
165
166	ubus call network.device set_state "$(json_dump)" 2>/dev/null
167}
168
169network_defer_device() { __network_defer "$1" 1; }
170network_ready_device() { __network_defer "$1" 0; }
171