wireless-ap: Allow setting the wireless environment (indoor/outdoor)
[people/ms/network.git] / src / functions / functions.hostapd
CommitLineData
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1#!/bin/bash
2###############################################################################
3# #
4# IPFire.org - A linux based firewall #
5# Copyright (C) 2012 IPFire Network Development Team #
6# #
7# This program is free software: you can redistribute it and/or modify #
8# it under the terms of the GNU General Public License as published by #
9# the Free Software Foundation, either version 3 of the License, or #
10# (at your option) any later version. #
11# #
12# This program is distributed in the hope that it will be useful, #
13# but WITHOUT ANY WARRANTY; without even the implied warranty of #
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15# GNU General Public License for more details. #
16# #
17# You should have received a copy of the GNU General Public License #
18# along with this program. If not, see <http://www.gnu.org/licenses/>. #
19# #
20###############################################################################
21
49ec20d8 22HOSTAPD_CONTROL_INTERFACE_DIR="/run/hostapd/ctrl"
0e035311 23
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24HOSTAPD_SUPPORTED_MODES="802.11a 802.11a/n 802.11ac 802.11g 802.11g/n"
25
1c6a4e30 26hostapd_config_write() {
0e035311 27 local device=${1}
49ec20d8 28 assert isset device
0e035311 29
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30 local file=${2}
31 assert isset file
32
33 # Shift the device and file argument.
34 shift 2
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35
36 local broadcast_ssid
37 local channel
f9e980d9 38 local channel_bandwidth
31670741 39 local country_code="$(wireless_get_reg_domain)"
7b297fb2 40 local dfs="on"
0e035311 41 local encryption
7842c2ce 42 local environment="${WIRELESS_DEFAULT_ENVIRONMENT}"
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43 local key
44 local mode
45 local ssid
19c166f8 46 local wmm="1"
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47
48 while [ $# -gt 0 ]; do
49 case "${1}" in
50 --broadcast-ssid=*)
2212045f 51 broadcast_ssid=$(cli_get_val "${1}")
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52 ;;
53 --channel=*)
2212045f 54 channel=$(cli_get_val "${1}")
0e035311 55 ;;
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56 --channel-bandwidth=*)
57 channel_bandwidth="$(cli_get_val "${1}")"
58 ;;
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59 --dfs=*)
60 dfs="$(cli_get_val "${1}")"
61 ;;
0e035311 62 --encryption=*)
2212045f 63 encryption=$(cli_get_val "${1}")
0e035311 64 ;;
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65 --environment=*)
66 environment="$(cli_get_val "${1}")"
67 ;;
0e035311 68 --key=*)
2212045f 69 key=$(cli_get_val "${1}")
0e035311 70 ;;
4cfc085f 71 --mode=*)
2212045f 72 mode=$(cli_get_val "${1}")
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73
74 if ! isoneof mode ${HOSTAPD_SUPPORTED_MODES}; then
75 error "Unsupported mode: ${mode}"
76 return ${EXIT_ERROR}
77 fi
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78 ;;
79 --ssid=*)
2212045f 80 ssid=$(cli_get_val "${1}")
4cfc085f 81 ;;
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82 --wmm=*)
83 local val="$(cli_get_val "${1}")"
84 if enabled val; then
85 wmm="1"
86 else
87 wmm="0"
88 fi
89 ;;
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90 *)
91 warning_log "Ignoring unknown argument '${1}'."
92 ;;
93 esac
94 shift
95 done
96
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97 # Check if mode is set
98 if ! isset mode; then
99 error "Mode is not set"
100 return ${EXIT_ERROR}
101 fi
102
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103 assert isset broadcast_ssid
104 assert isbool broadcast_ssid
105
106 assert isset channel
107 assert isinteger channel
108
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109 assert isset mode
110 assert isset ssid
111
112 # Check if key is set when encryption is used.
113 if isset encryption; then
114 assert isoneof encryption WPA WPA2 WPA/WPA2
115 assert isset key
116 fi
117
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118 # Check wireless environment
119 if ! wireless_environment_is_valid "${environment}"; then
120 error "Invalid wireless environment: ${environment}"
121 return ${EXIT_ERROR}
122 fi
123
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124 # With channel 0, ACS must be supported
125 if [ ${channel} -eq 0 ] && ! wireless_supports_acs "${device}"; then
126 error "ACS requested, but not supported by ${device}"
127 return ${EXIT_ERROR}
128 fi
129
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130 # Check channel bandwidth for validity
131 if isset channel_bandwidth && ! wireless_channel_bandwidth_is_valid "${mode}" "${channel_bandwidth}"; then
132 error "Invalid channel bandwidth for ${mode}: ${channel_bandwidth}"
133 return ${EXIT_ERROR}
134 fi
135
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136 # 802.11ac/n flags
137 local ieee80211ac
138 local ieee80211n
139 local vht_caps
f9e980d9 140 local vht_oper_chwidth="0"
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141 local ht_caps
142
143 local hw_mode
144 case "${mode}" in
145 802.11a)
146 hw_mode="a"
147 ;;
148
149 802.11a/n)
150 hw_mode="a"
151 ieee80211n="1"
152
153 # Fetch HT caps
154 ht_caps="$(wireless_get_ht_caps "${device}")"
155 ;;
156
157 802.11g)
158 hw_mode="g"
159 ;;
160
161 802.11g/n)
162 hw_mode="g"
163 ieee80211n="1"
164
165 # Fetch HT caps
166 ht_caps="$(wireless_get_ht_caps "${device}")"
167 ;;
168
169 802.11ac)
170 hw_mode="a"
171 ieee80211ac="1"
172 ieee80211n="1"
173
174 # Fetch VHT caps
175 vht_caps="$(wireless_get_vht_caps "${device}")"
1526e219 176
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177 # Fetch HT caps
178 ht_caps="$(wireless_get_ht_caps "${device}")"
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179
180 case "${channel_bandwidth}" in
181 80)
182 vht_oper_chwidth="1"
183 ;;
184 160)
185 vht_oper_chwidth="2"
186 ;;
187 80+80)
188 vht_oper_chwidth="3"
189 ;;
190 esac
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191 ;;
192 esac
0e1c630c 193
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194 # Create configuration directory.
195 local config_dir=$(dirname ${file})
196 mkdir -p ${HOSTAPD_CONTROL_INTERFACE_DIR} ${config_dir} 2>/dev/null
197
198 config_header "hostapd" > ${file}
199
200 # Interface configuration
201 (
202 print "# Interface configuration"
203 print "driver=nl80211"
204 print "interface=${device}"
205 print
206 ) >> ${file}
207
208 # Wireless configuration
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209 local ignore_broadcast_ssid
210 if enabled broadcast_ssid; then
211 ignore_broadcast_ssid="0"
212 else
213 ignore_broadcast_ssid="1"
214 fi
215
49ec20d8 216 (
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217 print "# Default settings"
218
219 # Advertise country code and maximum transmission power
220 print "ieee80211d=1"
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221 print "country_code=${country_code}"
222
223 # Wireless Environment
224 case "${environment}" in
225 indoor)
226 print "country3=0x49"
227 country3
228 ;;
229 outdoor)
230 print "country3=0x4f"
231 ;;
232 indoor+outdoor)
233 print "country3=0x20"
234 ;;
235 esac
b6ec3dd6 236
6c262922 237 # Enable Radar Detection
dc6d97fb 238 if enabled dfs && wireless_supports_dfs "${device}"; then
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239 print "ieee80211h=1"
240 else
241 print "ieee80211h=0"
242 fi
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243
244 print # empty line
245
49ec20d8 246 print "# Wireless configuration"
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247 print "hw_mode=${hw_mode}"
248
249 if isset ieee80211ac; then
250 print "ieee80211ac=${ieee80211ac}"
251 fi
252
253 if isset ieee80211n; then
254 print "ieee80211n=${ieee80211n}"
255 fi
256
49ec20d8 257 print "channel=${channel}"
49ec20d8 258 print "ignore_broadcast_ssid=${ignore_broadcast_ssid}"
0e035311 259
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260 if contains_spaces "${ssid}"; then
261 print "ssid=\"${ssid}\""
262 else
263 print "ssid=${ssid}"
264 fi
0e035311 265
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266 # WMM
267 print "wmm_enabled=${wmm}"
268
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269 # Enable VHT caps
270 if isset vht_caps; then
271 print "vht_capab=${vht_caps}"
272 fi
273
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274 # Enable HT caps
275 print "ht_capab=${ht_caps}"
276
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277 # Wider Channels
278 print "vht_oper_chwidth=${vht_oper_chwidth}"
279
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280 print
281 ) >> ${file}
0e035311 282
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283 # Control interface.
284 (
285 print "# Control interface"
286 print "ctrl_interface=${HOSTAPD_CONTROL_INTERFACE_DIR}"
287 print "ctrl_interface_group=0"
288 print
289 ) >> ${file}
0e035311 290
49ec20d8 291 # Encryption settings
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292 if isset encryption; then
293 local encryption_mode=0
294 case "${encryption}" in
295 WPA)
296 encryption_mode=1
297 ;;
298 WPA2)
299 encryption_mode=2
300 ;;
301 WPA/WPA2)
302 encryption_mode=3
303 ;;
304 esac
305
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306 (
307 print "# Encryption settings"
308 print "wpa=${encryption_mode}"
309 print "wpa_passphrase=${key}"
310 print "wpa_key_mgmt=WPA-PSK"
311 print "wpa_pairwise=TKIP"
312 print "rsn_pairwise=CCMP"
313 print
314 ) >> ${file}
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315 fi
316
317 return ${EXIT_OK}
318}
319
1c6a4e30 320hostapd_start() {
0e035311 321 local device=${1}
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322 assert isset device
323
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324 service_start "hostapd@${device}.service"
325 local ret=$?
326
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327 if [ ${ret} -eq ${EXIT_OK} ]; then
328 log DEBUG "hostapd has been successfully started on '${device}'"
329 else
330 log ERROR "Could not start hostapd on '${device}': ${ret}"
331 return ${EXIT_ERROR}
332 fi
333
334 return ${EXIT_OK}
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335}
336
1c6a4e30 337hostapd_stop() {
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338 local device=${1}
339 assert isset device
340
341 service_stop "hostapd@${device}.service"
0e035311 342}