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