summaryrefslogtreecommitdiff
path: root/package/base-files/files/sbin/wifi
blob: 051bc89a2d9e3b7dcb643bffc22c5f9c665b64d1 (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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
#!/bin/sh
# Copyright (C) 2006 OpenWrt.org

. /lib/functions.sh
. /usr/share/libubox/jshn.sh

usage() {
	cat <<EOF
Usage: $0 [down|detect|reload|status]
enables (default), disables or detects a wifi configuration.
EOF
	exit 1
}

ubus_wifi_cmd() {
	local cmd="$1"
	local dev="$2"

	json_init
	[ -n "$2" ] && json_add_string device "$2"
	ubus call network.wireless "$1" "$(json_dump)"
}

find_net_config() {(
	local vif="$1"
	local cfg
	local ifname

	config_get cfg "$vif" network

	[ -z "$cfg" ] && {
		include /lib/network
		scan_interfaces

		config_get ifname "$vif" ifname

		cfg="$(find_config "$ifname")"
	}
	[ -z "$cfg" ] && return 0
	echo "$cfg"
)}


bridge_interface() {(
	local cfg="$1"
	[ -z "$cfg" ] && return 0

	include /lib/network
	scan_interfaces

	for cfg in $cfg; do
		config_get iftype "$cfg" type
		[ "$iftype" = bridge ] && config_get "$cfg" ifname
		prepare_interface_bridge "$cfg"
		return $?
	done
)}

prepare_key_wep() {
	local key="$1"
	local hex=1

	echo -n "$key" | grep -qE "[^a-fA-F0-9]" && hex=0
	[ "${#key}" -eq 10 -a $hex -eq 1 ] || \
	[ "${#key}" -eq 26 -a $hex -eq 1 ] || {
		[ "${key:0:2}" = "s:" ] && key="${key#s:}"
		key="$(echo -n "$key" | hexdump -ve '1/1 "%02x" ""')"
	}
	echo "$key"
}

wifi_fixup_hwmode() {
	local device="$1"
	local default="$2"
	local hwmode hwmode_11n

	config_get channel "$device" channel
	config_get hwmode "$device" hwmode
	case "$hwmode" in
		11bg) hwmode=bg;;
		11a) hwmode=a;;
		11b) hwmode=b;;
		11g) hwmode=g;;
		11n*)
			hwmode_11n="${hwmode##11n}"
			case "$hwmode_11n" in
				a|g) ;;
				default) hwmode_11n="$default"
			esac
			config_set "$device" hwmode_11n "$hwmode_11n"
		;;
		*)
			hwmode=
			if [ "${channel:-0}" -gt 0 ]; then
				if [ "${channel:-0}" -gt 14 ]; then
					hwmode=a
				else
					hwmode=g
				fi
			else
				hwmode="$default"
			fi
		;;
	esac
	config_set "$device" hwmode "$hwmode"
}

_wifi_updown() {
	for device in ${2:-$DEVICES}; do (
		config_get disabled "$device" disabled
		[ 1 == "$disabled" ] && {
			echo "'$device' is disabled"
			set disable
		}
		config_get iftype "$device" type
		if eval "type ${1}_$iftype" 2>/dev/null >/dev/null; then
			eval "scan_$iftype '$device'"
			eval "${1}_$iftype '$device'" || echo "$device($iftype): ${1} failed"
		elif [ ! -f /lib/netifd/wireless/$iftype.sh ]; then
			echo "$device($iftype): Interface type not supported"
		fi
	); done
}

wifi_updown() {
	cmd=down
	[ enable = "$1" ] && {
		_wifi_updown disable "$2"
		ubus_wifi_cmd "$cmd" "$2"
		scan_wifi
		cmd=up
	}
	ubus_wifi_cmd "$cmd" "$2"
	_wifi_updown "$@"
}

wifi_reload_legacy() {
	_wifi_updown "disable" "$1"
	scan_wifi
	_wifi_updown "enable" "$1"
}

wifi_reload() {
	ubus call network reload
	wifi_reload_legacy
}

wifi_detect() {
	for driver in ${2:-$DRIVERS}; do (
		if eval "type detect_$driver" 2>/dev/null >/dev/null; then
			eval "detect_$driver" || echo "$driver: Detect failed" >&2
		else
			echo "$driver: Hardware detection not supported" >&2
		fi
	); done
}

start_net() {(
	local iface="$1"
	local config="$2"
	local vifmac="$3"

	[ -f "/var/run/$iface.pid" ] && kill "$(cat /var/run/${iface}.pid)" 2>/dev/null
	[ -z "$config" ] || {
		include /lib/network
		scan_interfaces
		for config in $config; do
			setup_interface "$iface" "$config" "" "$vifmac"
		done
	}
)}

set_wifi_up() {
	local cfg="$1"
	local ifname="$2"
	uci_set_state wireless "$cfg" up 1
	uci_set_state wireless "$cfg" ifname "$ifname"
}

set_wifi_down() {
	local cfg="$1"
	local vifs vif vifstr

	[ -f "/var/run/wifi-${cfg}.pid" ] &&
		kill "$(cat "/var/run/wifi-${cfg}.pid")" 2>/dev/null
	uci_revert_state wireless "$cfg"
	config_get vifs "$cfg" vifs
	for vif in $vifs; do
		uci_revert_state wireless "$vif"
	done
}

scan_wifi() {
	local cfgfile="$1"
	DEVICES=
	config_cb() {
		local type="$1"
		local section="$2"

		# section start
		case "$type" in
			wifi-device)
				append DEVICES "$section"
				config_set "$section" vifs ""
				config_set "$section" ht_capab ""
			;;
		esac

		# section end
		config_get TYPE "$CONFIG_SECTION" TYPE
		case "$TYPE" in
			wifi-iface)
				config_get device "$CONFIG_SECTION" device
				config_get vifs "$device" vifs
				append vifs "$CONFIG_SECTION"
				config_set "$device" vifs "$vifs"
			;;
		esac
	}
	config_load "${cfgfile:-wireless}"
}

DEVICES=
DRIVERS=
include /lib/wifi
scan_wifi

case "$1" in
	down) wifi_updown "disable" "$2";;
	detect) wifi_detect "$2";;
	status) ubus_wifi_cmd "status" "$2";;
	reload) wifi_reload "$2";;
	reload_legacy) wifi_reload_legacy "$2";;
	--help|help) usage;;
	*) ubus call network reload; wifi_updown "enable" "$2";;
esac