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1 | #!/bin/bash |
2 | ############################################################################### | |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5 | # Copyright (C) 2013 Michael Tremer # | |
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 | . /usr/lib/network/header-port | |
23 | ||
31670741 | 24 | HOOK_SETTINGS="HOOK ADDRESS MESH_ID SSID CHANNEL PHY" |
e6993835 MT |
25 | |
26 | ADDRESS=$(mac_generate) | |
27 | CHANNEL=1 | |
e6993835 | 28 | MESH_ID= |
1509acb7 | 29 | PHY= |
e6993835 MT |
30 | SSID= |
31 | ||
32 | # batman-adv inserts an additional header of 28 bytes, so we set the MTU | |
2da210b5 MT |
33 | # to 1560, that normal ethernet packets with 1500 bytes can pass the network. |
34 | MTU=1560 | |
e6993835 | 35 | |
2181765d | 36 | function hook_check() { |
e6993835 MT |
37 | assert isset ADDRESS |
38 | assert ismac ADDRESS | |
39 | assert isset CHANNEL | |
e6993835 MT |
40 | assert isset MESH_ID |
41 | assert ismac MESH_ID | |
42 | assert isset PHY | |
43 | assert ismac PHY | |
44 | assert isset SSID | |
45 | } | |
46 | ||
2181765d | 47 | function hook_create() { |
e6993835 MT |
48 | while [ $# -gt 0 ]; do |
49 | case "${1}" in | |
50 | --address=*) | |
51 | ADDRESS=$(cli_get_val ${1}) | |
52 | ;; | |
53 | --channel=*) | |
54 | CHANNEL=$(cli_get_val ${1}) | |
55 | ;; | |
e6993835 MT |
56 | --phy=*) |
57 | PHY=$(cli_get_val ${1}) | |
58 | ;; | |
59 | --ssid=*) | |
60 | SSID=$(cli_get_val ${1}) | |
61 | ;; | |
62 | --mesh-id=*) | |
63 | MESH_ID=$(cli_get_val ${1}) | |
64 | ;; | |
65 | *) | |
66 | warning "Ignoring unknown argument '${1}'" | |
67 | ;; | |
68 | esac | |
69 | shift | |
70 | done | |
71 | ||
72 | # Save address of phy do identify it again | |
73 | PHY=$(phy_get ${PHY}) | |
74 | PHY=$(phy_get_address ${PHY}) | |
75 | ||
76 | local port=$(port_find_free ${PORT_PATTERN_BATMAN_ADV_PORT}) | |
77 | assert isset port | |
78 | ||
e9df08ad | 79 | port_settings_write "${port}" ${HOOK_SETTINGS} |
e6993835 MT |
80 | |
81 | exit ${EXIT_OK} | |
82 | } | |
83 | ||
2181765d | 84 | function hook_edit() { |
e6993835 MT |
85 | local port=${1} |
86 | assert isset port | |
87 | shift | |
88 | ||
e9df08ad | 89 | port_settings_read "${port}" ${HOOK_SETTINGS} |
e6993835 MT |
90 | |
91 | while [ $# -gt 0 ]; do | |
92 | case "${1}" in | |
93 | --channel=*) | |
94 | CHANNEL=$(cli_get_val ${1}) | |
95 | ;; | |
e6993835 MT |
96 | --mesh-id=*) |
97 | MESH_ID=$(cli_get_val ${1}) | |
98 | ;; | |
99 | --ssid=*) | |
100 | SSID=$(cli_get_val ${1}) | |
101 | ;; | |
102 | *) | |
103 | warning "Unknown argument '${1}'" | |
104 | ;; | |
105 | esac | |
106 | shift | |
107 | done | |
108 | ||
e9df08ad | 109 | port_settings_write "${port}" ${HOOK_SETTINGS} |
e6993835 MT |
110 | |
111 | exit ${EXIT_OK} | |
112 | } | |
113 | ||
2181765d | 114 | function hook_up() { |
e6993835 MT |
115 | local port=${1} |
116 | assert isset port | |
117 | ||
e9df08ad | 118 | port_settings_read "${port}" ${HOOK_SETTINGS} |
e6993835 MT |
119 | |
120 | # Check if the PHY is present. | |
121 | local phy=$(phy_get ${PHY}) | |
122 | if ! isset phy; then | |
123 | log DEBUG "phy '${PHY}' is not present" | |
124 | exit ${EXIT_ERROR} | |
125 | fi | |
126 | ||
127 | # Create the wireless device, if it does not exist, yet. | |
128 | if ! device_exists ${port}; then | |
129 | wireless_create ${port} \ | |
130 | --address="${ADDRESS}" \ | |
131 | --phy="${phy}" \ | |
132 | --type="ibss" | |
133 | fi | |
134 | ||
135 | # Set the MTU. | |
136 | device_set_mtu "${port}" "${MTU}" | |
137 | ||
138 | # Join the ad-hoc network. | |
139 | wireless_ibss_join "${port}" --channel="${CHANNEL}" \ | |
140 | --bssid="${MESH_ID}" --essid="${SSID}" | |
141 | ||
142 | # Add the device as a batman-adv device. | |
cb1475f6 | 143 | local parent="$(hook_find_parent ${port})" |
e6993835 MT |
144 | if isset parent; then |
145 | batman_adv_interface_add "${parent}" "${port}" | |
146 | fi | |
147 | ||
148 | exit ${EXIT_OK} | |
149 | } | |
150 | ||
2181765d | 151 | function hook_down() { |
e6993835 MT |
152 | local port=${1} |
153 | assert isset port | |
154 | ||
155 | # Remove the batman-adv device. | |
156 | batman_adv_interface_del "${port}" | |
157 | ||
158 | # Leave the ad-hoc network. | |
159 | wireless_ibss_leave "${port}" | |
160 | ||
161 | # Remove the device if it is still present. | |
162 | if device_exists ${port}; then | |
163 | wireless_remove ${port} | |
164 | fi | |
165 | ||
166 | exit ${EXIT_OK} | |
167 | } | |
168 | ||
2181765d | 169 | function hook_hotplug() { |
e6993835 MT |
170 | local port=${1} |
171 | assert isset port | |
172 | ||
173 | local phy=${2} | |
174 | assert isset phy | |
175 | ||
176 | assert port_exists ${port} | |
177 | ||
178 | # Read configuration of port. | |
e9df08ad | 179 | port_settings_read "${port}" ${HOOK_SETTINGS} |
e6993835 MT |
180 | |
181 | # Get the address of the phy. | |
05365355 | 182 | local phy_address=$(phy_get_address "${phy}") |
e6993835 MT |
183 | |
184 | # Check if the phy is the same we have | |
185 | # read from the configuration file. | |
186 | if [ "${PHY}" = "${phy_address}" ]; then | |
187 | # Bring up the device. | |
188 | port_up "${port}" | |
05365355 MT |
189 | |
190 | exit ${EXIT_OK} | |
e6993835 MT |
191 | fi |
192 | ||
05365355 | 193 | exit ${EXIT_NOT_HANDLED} |
e6993835 MT |
194 | } |
195 | ||
2181765d | 196 | function hook_find_parent() { |
e6993835 MT |
197 | local port=${1} |
198 | assert isset port | |
199 | ||
200 | local p child hook | |
201 | for p in $(ports_get); do | |
202 | hook=$(port_get_hook "${p}") | |
203 | ||
204 | if [ "${hook}" = "batman-adv" ]; then | |
205 | for child in $(port_get_children "${p}"); do | |
e6993835 MT |
206 | [ "${child}" = "${port}" ] || continue |
207 | ||
208 | print "${p}" | |
209 | return ${EXIT_OK} | |
210 | done | |
211 | fi | |
212 | done | |
213 | ||
214 | return ${EXIT_ERROR} | |
215 | } |