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d76f5107 | 1 | #!/bin/bash |
1578dae9 MT |
2 | ############################################################################### |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
0e035311 | 5 | # Copyright (C) 2012 IPFire Network Development Team # |
1578dae9 MT |
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 | ############################################################################### | |
d76f5107 | 21 | |
d76f5107 MT |
22 | function wireless_create() { |
23 | local device=${1} | |
d76f5107 | 24 | assert isset device |
22a61046 | 25 | shift |
d76f5107 | 26 | |
22a61046 MT |
27 | local address |
28 | local phy | |
29 | local type="managed" | |
30 | ||
31 | while [ $# -gt 0 ]; do | |
32 | case "${1}" in | |
33 | --address=*) | |
34 | address=$(cli_get_val ${1}) | |
35 | ;; | |
36 | --phy=*) | |
37 | phy=$(cli_get_val ${1}) | |
38 | phy=$(phy_get ${phy}) | |
39 | ;; | |
40 | --type=*) | |
41 | type=$(cli_get_val ${1}) | |
42 | ||
43 | # ap --> __ap | |
44 | [ "${type}" = "ap" ] && type="__ap" | |
45 | ;; | |
46 | *) | |
47 | error "Unrecognized argument: ${1}" | |
48 | return ${EXIT_ERROR} | |
49 | ;; | |
50 | esac | |
51 | shift | |
52 | done | |
d76f5107 | 53 | |
91987cc5 | 54 | assert isoneof type ibss managed __ap |
22a61046 MT |
55 | assert phy_exists ${phy} |
56 | isset address || address=$(mac_generate) | |
57 | ||
58 | cmd_quiet iw phy ${phy} interface add ${device} type ${type} | |
59 | local ret=$? | |
d76f5107 | 60 | |
22a61046 MT |
61 | if [ ${ret} -eq ${EXIT_OK} ]; then |
62 | log DEBUG "created wireless device '${device}' (${type})" | |
d76f5107 | 63 | |
22a61046 MT |
64 | if isset address; then |
65 | device_set_address ${device} ${address} | |
66 | fi | |
67 | else | |
68 | log ERROR "could not create wireless device '${device}' (${type}): ${ret}" | |
d76f5107 MT |
69 | fi |
70 | ||
22a61046 | 71 | return ${ret} |
d76f5107 MT |
72 | } |
73 | ||
74 | function wireless_remove() { | |
75 | local device=${1} | |
22a61046 | 76 | assert isset device |
d76f5107 | 77 | |
22a61046 MT |
78 | if ! device_exists ${device}; then |
79 | return ${EXIT_OK} | |
80 | fi | |
d76f5107 | 81 | |
22a61046 | 82 | # Tear down the device (if necessary). |
d76f5107 MT |
83 | device_set_down ${device} |
84 | ||
22a61046 MT |
85 | # Remove it. |
86 | cmd_quiet iw dev ${device} del | |
87 | local ret=$? | |
88 | ||
89 | if [ ${ret} -eq ${EXIT_OK} ]; then | |
90 | log DEBUG "removed wireless device '${device}'" | |
91 | else | |
92 | log ERROR "could not remove wireless device '${device}': ${ret}" | |
93 | fi | |
94 | ||
95 | return ${ret} | |
d76f5107 MT |
96 | } |
97 | ||
91987cc5 MT |
98 | function wireless_channel_to_frequency() { |
99 | # http://en.wikipedia.org/wiki/List_of_WLAN_channels | |
100 | ||
101 | local channel=${1} | |
102 | assert isset channel | |
103 | ||
104 | # Channel number must be positive. | |
105 | assert [ "${channel}" -gt 0 ] | |
106 | ||
107 | # 2.4 GHz band | |
108 | case "${channel}" in | |
109 | [123456789]|1[0123]) | |
110 | print "$(( 2407 + (${channel} * 5)))" | |
111 | return ${EXIT_OK} | |
112 | ;; | |
113 | 14) | |
114 | print "2484" | |
115 | return ${EXIT_OK} | |
116 | ;; | |
117 | esac | |
118 | ||
119 | # 5 GHz band | |
120 | case "${channel}" in | |
121 | 3[68]|4[02468]|5[26]|6[04]|10[048]|11[26]|12[048]|13[26]|14[09]|15[37]|16[15]) | |
122 | print "$(( 5000 + (${channel} * 5)))" | |
123 | return ${EXIT_OK} | |
124 | ;; | |
125 | esac | |
126 | ||
127 | return ${EXIT_ERROR} | |
128 | } | |
129 | ||
d76f5107 MT |
130 | function wireless_set_channel() { |
131 | local device=${1} | |
d76f5107 | 132 | assert isset device |
22a61046 MT |
133 | |
134 | local channel=${2} | |
d76f5107 MT |
135 | assert isset channel |
136 | ||
22a61046 MT |
137 | device_exists ${device} || return ${EXIT_ERROR} |
138 | ||
139 | cmd_quiet iw dev ${device} set channel ${channel} | |
d76f5107 | 140 | } |
91987cc5 MT |
141 | |
142 | function wireless_ibss_join() { | |
143 | local device=${1} | |
144 | assert isset device | |
145 | shift | |
146 | ||
147 | local bssid | |
148 | local essid | |
149 | local frequency | |
150 | ||
151 | while [ $# -gt 0 ]; do | |
152 | case "${1}" in | |
153 | --bssid=*) | |
154 | bssid="$(cli_get_val ${1})" | |
155 | ;; | |
156 | --essid=*) | |
157 | essid="$(cli_get_val ${1})" | |
158 | ;; | |
159 | --channel=*) | |
160 | local channel="$(cli_get_val ${1})" | |
161 | ||
162 | # Save the frequency of the channel instead | |
163 | # of the channel itself. | |
164 | if isset channel; then | |
165 | frequency="$(wireless_channel_to_frequency ${channel})" | |
166 | fi | |
167 | ;; | |
168 | esac | |
169 | shift | |
170 | done | |
171 | ||
172 | # Check input. | |
173 | assert ismac bssid | |
174 | assert isset essid | |
175 | assert isinteger frequency | |
176 | ||
177 | # Set device up. | |
178 | device_set_up "${device}" | |
179 | ||
180 | log INFO "${device} joining ibss network: ${essid} (${bssid})" | |
181 | cmd_quiet iw dev "${device}" ibss join "${essid}" \ | |
182 | "${frequency}" fixed-freq "${bssid}" | |
183 | } | |
184 | ||
185 | function wireless_ibss_leave() { | |
186 | local device=${1} | |
187 | assert isset device | |
188 | ||
189 | log INFO "${device} leaving ibss network" | |
190 | cmd_quiet iw dev "${device}" ibss leave | |
191 | } | |
646ae5b2 MT |
192 | |
193 | function wireless_is_radar_frequency() { | |
194 | local frequency="${1}" | |
195 | assert isset frequency | |
196 | ||
197 | [[ ${frequency} -ge 5260 ]] && [[ ${frequency} -le 5700 ]] | |
198 | } |