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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 | ||
22 | HOSTAPD_CONTROL_INTERFACE_DIR="/run/hostapd/ctrl" | |
23 | ||
24 | HOSTAPD_SUPPORTED_MODES="802.11a 802.11a/n 802.11ac 802.11g 802.11g/n" | |
25 | ||
26 | hostapd_config_write() { | |
27 | local device=${1} | |
28 | assert isset device | |
29 | ||
30 | local file=${2} | |
31 | assert isset file | |
32 | ||
33 | # Shift the device and file argument. | |
34 | shift 2 | |
35 | ||
36 | local broadcast_ssid | |
37 | local channel | |
38 | local channel_bandwidth | |
39 | local country_code="$(wireless_get_reg_domain)" | |
40 | local dfs="on" | |
41 | local encryption | |
42 | local environment="${WIRELESS_DEFAULT_ENVIRONMENT}" | |
43 | local key | |
44 | local mode | |
45 | local ssid | |
46 | local wmm="1" | |
47 | ||
48 | while [ $# -gt 0 ]; do | |
49 | case "${1}" in | |
50 | --broadcast-ssid=*) | |
51 | broadcast_ssid=$(cli_get_val "${1}") | |
52 | ;; | |
53 | --channel=*) | |
54 | channel=$(cli_get_val "${1}") | |
55 | ;; | |
56 | --channel-bandwidth=*) | |
57 | channel_bandwidth="$(cli_get_val "${1}")" | |
58 | ;; | |
59 | --dfs=*) | |
60 | dfs="$(cli_get_val "${1}")" | |
61 | ;; | |
62 | --encryption=*) | |
63 | encryption=$(cli_get_val "${1}") | |
64 | ;; | |
65 | --environment=*) | |
66 | environment="$(cli_get_val "${1}")" | |
67 | ;; | |
68 | --key=*) | |
69 | key=$(cli_get_val "${1}") | |
70 | ;; | |
71 | --mode=*) | |
72 | mode=$(cli_get_val "${1}") | |
73 | ||
74 | if ! isoneof mode ${HOSTAPD_SUPPORTED_MODES}; then | |
75 | error "Unsupported mode: ${mode}" | |
76 | return ${EXIT_ERROR} | |
77 | fi | |
78 | ;; | |
79 | --ssid=*) | |
80 | ssid=$(cli_get_val "${1}") | |
81 | ;; | |
82 | --wmm=*) | |
83 | local val="$(cli_get_val "${1}")" | |
84 | if enabled val; then | |
85 | wmm="1" | |
86 | else | |
87 | wmm="0" | |
88 | fi | |
89 | ;; | |
90 | *) | |
91 | warning_log "Ignoring unknown argument '${1}'." | |
92 | ;; | |
93 | esac | |
94 | shift | |
95 | done | |
96 | ||
97 | # Check if mode is set | |
98 | if ! isset mode; then | |
99 | error "Mode is not set" | |
100 | return ${EXIT_ERROR} | |
101 | fi | |
102 | ||
103 | assert isset broadcast_ssid | |
104 | assert isbool broadcast_ssid | |
105 | ||
106 | assert isset channel | |
107 | assert isinteger channel | |
108 | ||
109 | assert isset mode | |
110 | assert isset ssid | |
111 | ||
112 | # Check if key is set when encryption is used. | |
113 | if isset encryption; then | |
114 | assert isoneof encryption WPA WPA2 WPA/WPA2 | |
115 | assert isset key | |
116 | fi | |
117 | ||
118 | # Check wireless environment | |
119 | if ! wireless_environment_is_valid "${environment}"; then | |
120 | error "Invalid wireless environment: ${environment}" | |
121 | return ${EXIT_ERROR} | |
122 | fi | |
123 | ||
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 ${EXIT_ERROR} | |
128 | fi | |
129 | ||
130 | # Check channel bandwidth for validity | |
131 | if isset channel_bandwidth && ! wireless_channel_bandwidth_is_valid "${mode}" "${channel_bandwidth}"; then | |
132 | error "Invalid channel bandwidth for ${mode}: ${channel_bandwidth}" | |
133 | return ${EXIT_ERROR} | |
134 | fi | |
135 | ||
136 | # 802.11ac/n flags | |
137 | local ieee80211ac | |
138 | local ieee80211n | |
139 | local vht_caps | |
140 | local vht_oper_chwidth="0" | |
141 | local ht_caps | |
142 | ||
143 | local hw_mode | |
144 | case "${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}")" | |
176 | ||
177 | # Fetch HT caps | |
178 | ht_caps="$(wireless_get_ht_caps "${device}")" | |
179 | ||
180 | case "${channel_bandwidth}" in | |
181 | 80) | |
182 | vht_oper_chwidth="1" | |
183 | ;; | |
184 | 160) | |
185 | vht_oper_chwidth="2" | |
186 | ;; | |
187 | 80+80) | |
188 | vht_oper_chwidth="3" | |
189 | ;; | |
190 | esac | |
191 | ;; | |
192 | esac | |
193 | ||
194 | # Create configuration directory. | |
195 | local config_dir=$(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 | ||
206 | ) >> ${file} | |
207 | ||
208 | # Wireless configuration | |
209 | local ignore_broadcast_ssid | |
210 | if enabled broadcast_ssid; then | |
211 | ignore_broadcast_ssid="0" | |
212 | else | |
213 | ignore_broadcast_ssid="1" | |
214 | fi | |
215 | ||
216 | ( | |
217 | print "# Default settings" | |
218 | ||
219 | # Advertise country code and maximum transmission power | |
220 | print "ieee80211d=1" | |
221 | print "country_code=${country_code}" | |
222 | ||
223 | # Wireless Environment | |
224 | case "${environment}" in | |
225 | indoor) | |
226 | print "country3=0x49" | |
227 | country3 | |
228 | ;; | |
229 | outdoor) | |
230 | print "country3=0x4f" | |
231 | ;; | |
232 | indoor+outdoor) | |
233 | print "country3=0x20" | |
234 | ;; | |
235 | esac | |
236 | ||
237 | # Enable Radar Detection | |
238 | if enabled dfs && wireless_supports_dfs "${device}"; then | |
239 | print "ieee80211h=1" | |
240 | else | |
241 | print "ieee80211h=0" | |
242 | fi | |
243 | ||
244 | print # empty line | |
245 | ||
246 | print "# Wireless configuration" | |
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=${ieee80211n}" | |
255 | fi | |
256 | ||
257 | print "channel=${channel}" | |
258 | print "ignore_broadcast_ssid=${ignore_broadcast_ssid}" | |
259 | ||
260 | if contains_spaces "${ssid}"; then | |
261 | print "ssid=\"${ssid}\"" | |
262 | else | |
263 | print "ssid=${ssid}" | |
264 | fi | |
265 | ||
266 | # WMM | |
267 | print "wmm_enabled=${wmm}" | |
268 | ||
269 | # Enable VHT caps | |
270 | if isset vht_caps; then | |
271 | print "vht_capab=${vht_caps}" | |
272 | fi | |
273 | ||
274 | # Enable HT caps | |
275 | print "ht_capab=${ht_caps}" | |
276 | ||
277 | # Wider Channels | |
278 | print "vht_oper_chwidth=${vht_oper_chwidth}" | |
279 | ||
280 | ||
281 | ) >> ${file} | |
282 | ||
283 | # Control interface. | |
284 | ( | |
285 | print "# Control interface" | |
286 | print "ctrl_interface=${HOSTAPD_CONTROL_INTERFACE_DIR}" | |
287 | print "ctrl_interface_group=0" | |
288 | ||
289 | ) >> ${file} | |
290 | ||
291 | # Encryption settings | |
292 | if isset encryption; then | |
293 | local encryption_mode=0 | |
294 | case "${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 | ||
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 | ||
314 | ) >> ${file} | |
315 | fi | |
316 | ||
317 | return ${EXIT_OK} | |
318 | } | |
319 | ||
320 | hostapd_start() { | |
321 | local device=${1} | |
322 | assert isset device | |
323 | ||
324 | service_start "hostapd@${device}.service" | |
325 | local ret=$? | |
326 | ||
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 ${EXIT_OK} | |
335 | } | |
336 | ||
337 | hostapd_stop() { | |
338 | local device=${1} | |
339 | assert isset device | |
340 | ||
341 | service_stop "hostapd@${device}.service" | |
342 | } |