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1 | #!/bin/bash | |
2 | ############################################################################### | |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5 | # Copyright (C) 2010 Michael Tremer & Christian Schmidt # | |
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-zone | |
23 | ||
24 | HOOK_MANPAGE="network-zone-bridge" | |
25 | ||
26 | HOOK_SETTINGS="HOOK STP STP_FORWARD_DELAY STP_HELLO STP_MAXAGE" | |
27 | HOOK_SETTINGS="${HOOK_SETTINGS} STP_PRIORITY MAC MTU" | |
28 | ||
29 | HOOK_PORT_SETTINGS="COST PRIORITY" | |
30 | ||
31 | # Default values | |
32 | MAC="" | |
33 | MTU=1500 | |
34 | STP="on" | |
35 | STP_FORWARD_DELAY=0 | |
36 | STP_HELLO=2 | |
37 | STP_MAXAGE=20 | |
38 | STP_PRIORITY=512 | |
39 | ||
40 | hook_check_settings() { | |
41 | assert ismac MAC | |
42 | assert isbool STP | |
43 | assert isinteger STP_HELLO | |
44 | assert isinteger STP_FORWARD_DELAY | |
45 | assert isinteger STP_PRIORITY | |
46 | assert isinteger MTU | |
47 | } | |
48 | ||
49 | hook_parse_cmdline() { | |
50 | while [ $# -gt 0 ]; do | |
51 | case "${1}" in | |
52 | --stp=*) | |
53 | STP=${1#--stp=} | |
54 | ;; | |
55 | --stp-hello=*) | |
56 | STP_HELLO=${1#--stp-hello=} | |
57 | ;; | |
58 | --stp-forward-delay=*) | |
59 | STP_FORWARD_DELAY=${1#--stp-forward-delay=} | |
60 | ;; | |
61 | --stp-priority=*) | |
62 | STP_PRIORITY=${1#--stp-priority=} | |
63 | ;; | |
64 | --mtu=*) | |
65 | MTU=${1#--mtu=} | |
66 | ;; | |
67 | --mac=*) | |
68 | MAC=${1#--mac=} | |
69 | ;; | |
70 | *) | |
71 | warning "Ignoring unknown option '${1}'" | |
72 | ;; | |
73 | esac | |
74 | shift | |
75 | done | |
76 | ||
77 | # Generate a random MAC address if the user passed no one | |
78 | isset MAC || MAC="$(mac_generate)" | |
79 | } | |
80 | ||
81 | hook_up() { | |
82 | local zone=${1} | |
83 | assert isset zone | |
84 | ||
85 | zone_settings_read "${zone}" | |
86 | ||
87 | # Create the bridge if it does not already exist. | |
88 | if ! device_exists "${zone}"; then | |
89 | bridge_create "${zone}" \ | |
90 | --address="${MAC}" \ | |
91 | --mtu="${MTU}" | |
92 | fi | |
93 | ||
94 | # Enable STP | |
95 | if enabled STP; then | |
96 | stp_enable "${zone}" | |
97 | ||
98 | if isset STP_FORWARD_DELAY; then | |
99 | stp_bridge_set_forward_delay "${zone}" "${STP_FORWARD_DELAY}" | |
100 | fi | |
101 | ||
102 | if isset STP_HELLO; then | |
103 | stp_bridge_set_hello_time "${zone}" "${STP_HELLO}" | |
104 | fi | |
105 | ||
106 | if isset STP_MAXAGE; then | |
107 | stp_bridge_set_max_age "${zone}" "${STP_MAXAGE}" | |
108 | fi | |
109 | ||
110 | if isset STP_PRIORITY; then | |
111 | stp_bridge_set_priority "${zone}" "${STP_PRIORITY}" | |
112 | fi | |
113 | else | |
114 | stp_disable "${zone}" | |
115 | fi | |
116 | ||
117 | device_set_up "${zone}" | |
118 | ||
119 | # XXX Currently, there is a bug (in the linux kernel?) that we need to | |
120 | # set our bridges to promisc mode. | |
121 | device_set_promisc "${zone}" on | |
122 | ||
123 | # Bring up all configurations | |
124 | zone_configs_up "${zone}" | |
125 | ||
126 | exit ${EXIT_OK} | |
127 | } | |
128 | ||
129 | hook_hotplug() { | |
130 | local zone="${1}" | |
131 | assert isset zone | |
132 | ||
133 | case "$(hotplug_action)" in | |
134 | add) | |
135 | # Attach all ports when zone is coming up | |
136 | if hotplug_event_interface_is_zone "${zone}"; then | |
137 | # Bring up all ports | |
138 | local port | |
139 | for port in $(zone_get_ports "${zone}"); do | |
140 | log DEBUG "Trying to attach port ${port} to ${zone}" | |
141 | ||
142 | hook_port_up "${zone}" "${port}" | |
143 | done | |
144 | ||
145 | # Handle ports of this zone that have just been added | |
146 | elif hotplug_event_interface_is_port_of_zone "${zone}"; then | |
147 | # Attach the device if the parent bridge is up | |
148 | if zone_is_active "${zone}"; then | |
149 | hook_port_up "${zone}" "${INTERFACE}" | |
150 | fi | |
151 | fi | |
152 | ;; | |
153 | remove) | |
154 | if hotplug_event_interface_is_zone "${zone}"; then | |
155 | # Bring down/destroy all ports | |
156 | local port | |
157 | for port in $(zone_get_ports "${zone}"); do | |
158 | log DEBUG "Trying to detach port ${port} from ${zone}" | |
159 | ||
160 | hook_port_down "${zone}" "${port}" | |
161 | done | |
162 | ||
163 | # Handle ports of this zone that have just been removed | |
164 | elif hotplug_event_interface_is_port_of_zone "${zone}"; then | |
165 | hook_port_down "${zone}" "${INTERFACE}" | |
166 | fi | |
167 | ;; | |
168 | *) | |
169 | exit ${EXIT_NOT_HANDLED} | |
170 | ;; | |
171 | esac | |
172 | ||
173 | exit ${EXIT_OK} | |
174 | } | |
175 | ||
176 | hook_down() { | |
177 | local zone="${1}" | |
178 | assert isset zone | |
179 | ||
180 | if ! device_is_up "${zone}"; then | |
181 | warning "Zone '${zone}' is not up" | |
182 | exit ${EXIT_OK} | |
183 | fi | |
184 | ||
185 | # Stop all the configs. | |
186 | zone_configs_down "${zone}" | |
187 | ||
188 | # Bring down all the ports. | |
189 | zone_ports_down "${zone}" | |
190 | zone_ports_remove "${zone}" | |
191 | ||
192 | # Remove the bridge. | |
193 | device_set_down "${zone}" | |
194 | bridge_delete "${zone}" | |
195 | ||
196 | exit ${EXIT_OK} | |
197 | } | |
198 | ||
199 | hook_status() { | |
200 | local zone="${1}" | |
201 | assert isset zone | |
202 | ||
203 | # Print the default header. | |
204 | cli_device_headline "${zone}" | |
205 | ||
206 | # Exit if zone is down | |
207 | if ! zone_is_up "${zone}"; then | |
208 | echo # Empty line | |
209 | exit ${EXIT_ERROR} | |
210 | fi | |
211 | ||
212 | cli_headline 2 "Spanning Tree Protocol information" | |
213 | if stp_is_enabled "${zone}"; then | |
214 | cli_print_fmt1 2 "ID" "$(stp_bridge_get_id ${zone})" | |
215 | cli_print_fmt1 2 "Priority" "$(stp_bridge_get_priority ${zone})" | |
216 | ||
217 | if stp_bridge_is_root ${zone}; then | |
218 | cli_print 2 "This bridge is root." | |
219 | else | |
220 | cli_print_fmt1 2 "Designated root" \ | |
221 | "$(stp_bridge_get_designated_root ${zone})" | |
222 | cli_print_fmt1 2 "Root path cost" \ | |
223 | "$(stp_bridge_get_root_path_cost ${zone})" | |
224 | fi | |
225 | cli_space | |
226 | ||
227 | # Topology information | |
228 | cli_print_fmt1 2 "Topology changing" \ | |
229 | "$(stp_bridge_get_topology_change_detected ${zone})" | |
230 | cli_print_fmt1 2 "Topology change time" \ | |
231 | "$(beautify_time $(stp_bridge_get_topology_change_timer ${zone}))" | |
232 | cli_print_fmt1 2 "Topology change count" \ | |
233 | "$(stp_bridge_get_topology_change_count ${zone})" | |
234 | cli_space | |
235 | else | |
236 | cli_print 2 "Disabled" | |
237 | cli_space | |
238 | fi | |
239 | ||
240 | cli_headline 2 "Ports" | |
241 | zone_ports_status "${zone}" | |
242 | cli_space | |
243 | ||
244 | cli_headline 2 "Configurations" | |
245 | zone_configs_cmd status "${zone}" | |
246 | cli_space | |
247 | ||
248 | exit ${EXIT_OK} | |
249 | } | |
250 | ||
251 | hook_check_port_settings() { | |
252 | if isset COST; then | |
253 | assert isinteger COST | |
254 | fi | |
255 | ||
256 | if isset PRIORITY; then | |
257 | assert isinteger PRIORITY | |
258 | fi | |
259 | } | |
260 | ||
261 | hook_port_attach() { | |
262 | # Excepting at least two arguments here | |
263 | assert [ $# -ge 2 ] | |
264 | ||
265 | local zone="${1}" | |
266 | local port="${2}" | |
267 | shift 2 | |
268 | ||
269 | if zone_has_port "${zone}" "${port}"; then | |
270 | zone_port_settings_read "${zone}" "${port}" | |
271 | fi | |
272 | ||
273 | local arg | |
274 | local val | |
275 | while read arg; do | |
276 | case "${arg}" in | |
277 | --cost=*) | |
278 | COST="$(cli_get_val "${arg}")" | |
279 | ;; | |
280 | --priority=*) | |
281 | PRIORITY="$(cli_get_val "${arg}")" | |
282 | ;; | |
283 | esac | |
284 | done <<< "$(args "$@")" | |
285 | ||
286 | if ! zone_port_settings_write "${zone}" "${port}"; then | |
287 | exit ${EXIT_ERROR} | |
288 | fi | |
289 | ||
290 | exit ${EXIT_OK} | |
291 | } | |
292 | ||
293 | hook_port_detach() { | |
294 | assert [ $# -eq 2 ] | |
295 | ||
296 | local zone="${1}" | |
297 | local port="${2}" | |
298 | ||
299 | # Shut down the port (if possible) | |
300 | port_down "${port}" | |
301 | ||
302 | if ! zone_port_settings_remove "${zone}" "${port}"; then | |
303 | exit ${EXIT_ERROR} | |
304 | fi | |
305 | ||
306 | exit ${EXIT_OK} | |
307 | } | |
308 | ||
309 | hook_port_edit() { | |
310 | hook_port_attach "$@" | |
311 | } | |
312 | ||
313 | hook_port_up() { | |
314 | assert [ $# -eq 2 ] | |
315 | ||
316 | local zone="${1}" | |
317 | local port="${2}" | |
318 | ||
319 | # Try bringing up the port if it has not been | |
320 | # brought up before. | |
321 | # We will get here as soon as the port device has | |
322 | # been created and will then connect it with the bridge. | |
323 | if ! device_exists "${port}"; then | |
324 | port_create "${port}" | |
325 | ||
326 | return ${EXIT_OK} | |
327 | fi | |
328 | ||
329 | # Read configuration values | |
330 | zone_port_settings_read "${zone}" "${port}" ${HOOK_PORT_SETTINGS} | |
331 | ||
332 | # Make sure that the port is up | |
333 | port_up "${port}" | |
334 | ||
335 | # Attach the port to the bridge | |
336 | bridge_attach_device "${zone}" "${port}" | |
337 | ||
338 | # Set STP configuration | |
339 | if isset COST; then | |
340 | stp_port_set_cost "${zone}" "${port}" "${COST}" | |
341 | fi | |
342 | ||
343 | if isset PRIORITY; then | |
344 | stp_port_set_priority "${zone}" "${port}" "${PRIORITY}" | |
345 | fi | |
346 | ||
347 | return ${EXIT_OK} | |
348 | } | |
349 | ||
350 | hook_port_down() { | |
351 | assert [ $# -eq 2 ] | |
352 | ||
353 | local zone="${1}" | |
354 | local port="${2}" | |
355 | ||
356 | if device_exists "${port}"; then | |
357 | bridge_detach_device "${zone}" "${port}" | |
358 | ||
359 | port_down "${port}" | |
360 | fi | |
361 | ||
362 | return ${EXIT_OK} | |
363 | } | |
364 | ||
365 | hook_port_status() { | |
366 | assert [ $# -eq 2 ] | |
367 | ||
368 | local zone="${1}" | |
369 | local port="${2}" | |
370 | ||
371 | # Do nothing for devices which are not up and running. | |
372 | device_exists "${port}" || exit ${EXIT_OK} | |
373 | ||
374 | local status | |
375 | ||
376 | # Check if the device is down. | |
377 | if ! device_is_up "${port}"; then | |
378 | status="${MSG_DEVICE_STATUS_DOWN}" | |
379 | ||
380 | # Check if the device has no carrier. | |
381 | elif ! device_has_carrier "${port}"; then | |
382 | status="${MSG_DEVICE_STATUS_NOCARRIER}" | |
383 | ||
384 | # Check for STP information. | |
385 | elif stp_is_enabled "${zone}"; then | |
386 | local state="$(stp_port_get_state "${zone}" "${port}")" | |
387 | state="MSG_STP_${state}" | |
388 | status="${!state}" | |
389 | ||
390 | status="${status} - DSR: $(stp_port_get_designated_root "${zone}" "${port}")" | |
391 | status="${status} - Cost: $(stp_port_get_cost "${zone}" "${port}")" | |
392 | else | |
393 | status="${MSG_DEVICE_STATUS_UP}" | |
394 | fi | |
395 | cli_statusline 3 "${port}" "${status}" | |
396 | ||
397 | exit ${EXIT_OK} | |
398 | } |