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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 STP_MODE" | |
27 | HOOK_SETTINGS="${HOOK_SETTINGS} STP_PRIORITY MAC MTU" | |
28 | ||
29 | HOOK_PORT_SETTINGS="COST PRIORITY" | |
30 | ||
31 | # Default values | |
32 | MAC=$(mac_generate) | |
33 | MTU=1500 | |
34 | STP="on" | |
35 | STP_MODE="rstp" | |
36 | STP_FORWARD_DELAY=0 | |
37 | STP_HELLO=2 | |
38 | STP_MAXAGE=20 | |
39 | STP_PRIORITY=512 | |
40 | ||
41 | function hook_check() { | |
42 | assert ismac MAC | |
43 | assert isbool STP | |
44 | assert isoneof STP_MODE stp rstp | |
45 | assert isinteger STP_HELLO | |
46 | assert isinteger STP_FORWARD_DELAY | |
47 | assert isinteger STP_PRIORITY | |
48 | assert isinteger MTU | |
49 | } | |
50 | ||
51 | function hook_parse_cmdline() { | |
52 | while [ $# -gt 0 ]; do | |
53 | case "${1}" in | |
54 | --stp=*) | |
55 | STP=${1#--stp=} | |
56 | ;; | |
57 | --stp-mode=*) | |
58 | STP_MODE=${1#--stp-mode=} | |
59 | ;; | |
60 | --stp-hello=*) | |
61 | STP_HELLO=${1#--stp-hello=} | |
62 | ;; | |
63 | --stp-forward-delay=*) | |
64 | STP_FORWARD_DELAY=${1#--stp-forward-delay=} | |
65 | ;; | |
66 | --stp-priority=*) | |
67 | STP_PRIORITY=${1#--stp-priority=} | |
68 | ;; | |
69 | --mtu=*) | |
70 | MTU=${1#--mtu=} | |
71 | ;; | |
72 | --mac=*) | |
73 | MAC=${1#--mac=} | |
74 | ;; | |
75 | *) | |
76 | warning "Ignoring unknown option '${1}'" | |
77 | ;; | |
78 | esac | |
79 | shift | |
80 | done | |
81 | } | |
82 | ||
83 | function hook_up() { | |
84 | local zone=${1} | |
85 | assert isset zone | |
86 | ||
87 | zone_settings_read "${zone}" ${HOOK_SETTINGS} | |
88 | ||
89 | # Create the bridge if it does not already exist. | |
90 | if ! device_exists "${zone}"; then | |
91 | bridge_create "${zone}" \ | |
92 | --address="${MAC}" \ | |
93 | --mtu="${MTU}" | |
94 | fi | |
95 | ||
96 | # Enable STP | |
97 | if enabled STP; then | |
98 | stp_enable "${zone}" | |
99 | ||
100 | if isset STP_FORWARD_DELAY; then | |
101 | stp_bridge_set_forward_delay "${zone}" "${STP_FORWARD_DELAY}" | |
102 | fi | |
103 | ||
104 | if isset STP_HELLO; then | |
105 | stp_bridge_set_hello_time "${zone}" "${STP_HELLO}" | |
106 | fi | |
107 | ||
108 | if isset STP_MAXAGE; then | |
109 | stp_bridge_set_max_age "${zone}" "${STP_MAXAGE}" | |
110 | fi | |
111 | ||
112 | if isset STP_PRIORITY; then | |
113 | stp_bridge_set_priority "${zone}" "${STP_PRIORITY}" | |
114 | fi | |
115 | else | |
116 | stp_disable "${zone}" | |
117 | fi | |
118 | ||
119 | device_set_up "${zone}" | |
120 | ||
121 | # XXX Currently, there is a bug (in the linux kernel?) that we need to | |
122 | # set our bridges to promisc mode. | |
123 | device_set_promisc "${zone}" on | |
124 | ||
125 | # Bring up all ports | |
126 | zone_ports_create "${zone}" | |
127 | zone_ports_up "${zone}" | |
128 | ||
129 | # Bring up all configurations | |
130 | zone_configs_up "${zone}" | |
131 | ||
132 | exit ${EXIT_OK} | |
133 | } | |
134 | ||
135 | function hook_hotplug() { | |
136 | local zone="${1}" | |
137 | assert isset zone | |
138 | ||
139 | case "$(hotplug_action)" in | |
140 | add) | |
141 | # Handle ports of this zone that have just been added | |
142 | if hotplug_event_interface_is_port_of_zone "${zone}"; then | |
143 | # Bring up the zone if it is enabled but not active, yet. | |
144 | if zone_is_enabled "${zone}" && ! zone_is_active "${zone}"; then | |
145 | zone_start "${zone}" | |
146 | fi | |
147 | ||
148 | hook_port_up "${zone}" "${INTERFACE}" | |
149 | fi | |
150 | ;; | |
151 | remove) | |
152 | # Handle ports of this zone that have just been removed | |
153 | if hotplug_event_interface_is_port_of_zone "${zone}"; then | |
154 | hook_port_down "${zone}" "${INTERFACE}" | |
155 | fi | |
156 | ;; | |
157 | *) | |
158 | exit ${EXIT_NOT_HANDLED} | |
159 | ;; | |
160 | esac | |
161 | ||
162 | exit ${EXIT_OK} | |
163 | } | |
164 | ||
165 | function hook_down() { | |
166 | local zone="${1}" | |
167 | assert isset zone | |
168 | ||
169 | if ! device_is_up "${zone}"; then | |
170 | warning "Zone '${zone}' is not up" | |
171 | exit ${EXIT_OK} | |
172 | fi | |
173 | ||
174 | # Stop all the configs. | |
175 | zone_configs_down "${zone}" | |
176 | ||
177 | # Bring down all the ports. | |
178 | zone_ports_down "${zone}" | |
179 | zone_ports_remove "${zone}" | |
180 | ||
181 | # Remove the bridge. | |
182 | device_set_down "${zone}" | |
183 | bridge_delete "${zone}" | |
184 | ||
185 | exit ${EXIT_OK} | |
186 | } | |
187 | ||
188 | function hook_status() { | |
189 | local zone="${1}" | |
190 | assert isset zone | |
191 | ||
192 | # Print the default header. | |
193 | cli_device_headline "${zone}" | |
194 | ||
195 | # Exit if zone is down | |
196 | if ! zone_is_up "${zone}"; then | |
197 | echo # Empty line | |
198 | exit ${EXIT_ERROR} | |
199 | fi | |
200 | ||
201 | cli_headline 2 "Spanning Tree Protocol information" | |
202 | if stp_is_enabled "${zone}"; then | |
203 | local proto=$(stp_bridge_get_protocol ${zone}) | |
204 | ||
205 | cli_print_fmt1 2 "Version" "$(stp_get_name ${proto})" | |
206 | cli_print_fmt1 2 "ID" "$(stp_bridge_get_id ${zone})" | |
207 | cli_print_fmt1 2 "Priority" "$(stp_bridge_get_priority ${zone})" | |
208 | ||
209 | if stp_bridge_is_root ${zone}; then | |
210 | cli_print 2 "This bridge is root." | |
211 | else | |
212 | cli_print_fmt1 2 "Designated root" \ | |
213 | "$(stp_bridge_get_designated_root ${zone})" | |
214 | cli_print_fmt1 2 "Root path cost" \ | |
215 | "$(stp_bridge_get_root_path_cost ${zone})" | |
216 | fi | |
217 | cli_space | |
218 | ||
219 | # Topology information | |
220 | cli_print_fmt1 2 "Topology changing" \ | |
221 | "$(stp_bridge_get_topology_change_detected ${zone})" | |
222 | cli_print_fmt1 2 "Topology change time" \ | |
223 | "$(beautify_time $(stp_bridge_get_topology_change_timer ${zone}))" | |
224 | cli_print_fmt1 2 "Topology change count" \ | |
225 | "$(stp_bridge_get_topology_change_count ${zone})" | |
226 | cli_space | |
227 | else | |
228 | cli_print 2 "Disabled" | |
229 | cli_space | |
230 | fi | |
231 | ||
232 | cli_headline 2 "Ports" | |
233 | zone_ports_status "${zone}" | |
234 | cli_space | |
235 | ||
236 | cli_headline 2 "Configurations" | |
237 | zone_configs_cmd status "${zone}" | |
238 | cli_space | |
239 | ||
240 | exit ${EXIT_OK} | |
241 | } | |
242 | ||
243 | function __parse_cmdline_args() { | |
244 | while [ $# -gt 0 ]; do | |
245 | case "${1}" in | |
246 | --priority=*) | |
247 | PRIORITY="$(cli_get_val ${1})" | |
248 | ;; | |
249 | --cost=*) | |
250 | COST="$(cli_get_val ${1})" | |
251 | ;; | |
252 | esac | |
253 | shift | |
254 | done | |
255 | ||
256 | return ${EXIT_OK} | |
257 | } | |
258 | ||
259 | function hook_port_add() { | |
260 | # Excepting at least two arguments here | |
261 | assert [ $# -ge 2 ] | |
262 | ||
263 | local zone="${1}" | |
264 | local port="${2}" | |
265 | shift 2 | |
266 | ||
267 | __parse_cmdline_args "$@" | |
268 | [ $? -eq ${EXIT_OK} ] || return ${EXIT_ERROR} | |
269 | ||
270 | zone_port_settings_write "${zone}" "${port}" ${HOOK_PORT_SETTINGS} | |
271 | ||
272 | log INFO "Port '${port}' has been added to zone '${zone}'" | |
273 | ||
274 | exit ${EXIT_OK} | |
275 | } | |
276 | ||
277 | function hook_port_edit() { | |
278 | assert [ $# -ge 2 ] | |
279 | ||
280 | local zone="${1}" | |
281 | local port="${2}" | |
282 | shift 2 | |
283 | ||
284 | zone_port_settings_read "${zone}" "${port}" ${HOOK_PORT_SETTINGS} | |
285 | ||
286 | __parse_cmdline_args "$@" | |
287 | [ $? -eq ${EXIT_OK} ] || return ${EXIT_ERROR} | |
288 | ||
289 | zone_port_settings_write "${zone}" "${port}" ${HOOK_PORT_SETTINGS} | |
290 | ||
291 | log INFO "Port '${port}' (member of zone '${zone}') has been edited" | |
292 | ||
293 | exit ${EXIT_OK} | |
294 | } | |
295 | ||
296 | function hook_port_destroy() { | |
297 | assert [ $# -eq 2 ] | |
298 | ||
299 | local zone="${1}" | |
300 | local port="${2}" | |
301 | ||
302 | # Shut down the port (if possible) | |
303 | port_down "${port}" | |
304 | ||
305 | log INFO "Port '${port}' has been removed from zone '${zone}'" | |
306 | zone_port_settings_remove "${zone}" "${port}" | |
307 | ||
308 | exit ${EXIT_OK} | |
309 | } | |
310 | ||
311 | function hook_port_up() { | |
312 | assert [ $# -eq 2 ] | |
313 | ||
314 | local zone="${1}" | |
315 | local port="${2}" | |
316 | ||
317 | # Try bringing up the port if it has not been | |
318 | # brought up before. | |
319 | # We will get here as soon as the port device has | |
320 | # been created and will then connect it with the bridge. | |
321 | if ! device_exists "${port}"; then | |
322 | port_up "${port}" | |
323 | ||
324 | exit ${EXIT_OK} | |
325 | fi | |
326 | ||
327 | # Read configuration values | |
328 | zone_port_settings_read "${zone}" "${port}" ${HOOK_PORT_SETTINGS} | |
329 | ||
330 | # Attach the port to the bridge | |
331 | bridge_attach_device "${zone}" "${port}" | |
332 | ||
333 | # Set STP configuration | |
334 | if isset COST; then | |
335 | stp_port_set_cost "${zone}" "${port}" "${COST}" | |
336 | fi | |
337 | ||
338 | # TODO Apply priority (#10609) | |
339 | ||
340 | # Make sure that the port is up | |
341 | port_up "${port}" | |
342 | ||
343 | exit ${EXIT_OK} | |
344 | } | |
345 | ||
346 | function hook_port_down() { | |
347 | assert [ $# -eq 2 ] | |
348 | ||
349 | local zone="${1}" | |
350 | local port="${2}" | |
351 | ||
352 | if device_exists "${port}"; then | |
353 | bridge_detach_device "${zone}" "${port}" | |
354 | ||
355 | port_down "${port}" | |
356 | fi | |
357 | ||
358 | exit ${EXIT_OK} | |
359 | } | |
360 | ||
361 | function hook_port_status() { | |
362 | assert [ $# -eq 2 ] | |
363 | ||
364 | local zone="${1}" | |
365 | local port="${2}" | |
366 | ||
367 | # Do nothing for devices which are not up and running. | |
368 | device_exists "${port}" || exit ${EXIT_OK} | |
369 | ||
370 | local status | |
371 | ||
372 | # Check if the device is down. | |
373 | if ! device_is_up "${port}"; then | |
374 | status="${MSG_DEVICE_STATUS_DOWN}" | |
375 | ||
376 | # Check if the device has no carrier. | |
377 | elif ! device_has_carrier "${port}"; then | |
378 | status="${MSG_DEVICE_STATUS_NOCARRIER}" | |
379 | ||
380 | # Check for STP information. | |
381 | elif stp_is_enabled "${zone}"; then | |
382 | local state="$(stp_port_get_state "${zone}" "${port}")" | |
383 | state="MSG_STP_${state}" | |
384 | status="${!state}" | |
385 | ||
386 | status="${status} - DSR: $(stp_port_get_designated_root "${zone}" "${port}")" | |
387 | status="${status} - Cost: $(stp_port_get_cost "${zone}" "${port}")" | |
388 | else | |
389 | status="${MSG_DEVICE_STATUS_UP}" | |
390 | fi | |
391 | cli_statusline 3 "${port}" "${status}" | |
392 | ||
393 | exit ${EXIT_OK} | |
394 | } |