Contents of /trunk/initscripts/systemd/units/scripts/network.sh
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Thu Jan 2 14:21:05 2014 UTC (10 years, 4 months ago) by niro
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Thu Jan 2 14:21:05 2014 UTC (10 years, 4 months ago) by niro
File MIME type: application/x-sh
File size: 12276 byte(s)
-fixed a typo
1 | #!/bin/bash |
2 | # $Id$ |
3 | # Magellan network configuration script for systemd |
4 | |
5 | # get default settings |
6 | source /etc/conf.d/network |
7 | |
8 | wait_online() |
9 | { |
10 | local timeout="$1" |
11 | local iface="$2" |
12 | |
13 | (( timeout *= 10 )) |
14 | |
15 | while [ ! -e /sys/class/net/${iface} ] |
16 | do |
17 | (( timeout-- > 0 )) || return 1 |
18 | echo "waiting 0.1 seconds for device '${iface}' - timeout->'${timeout}'" |
19 | sleep 0.1 |
20 | done |
21 | |
22 | return 0 |
23 | } |
24 | |
25 | # read values from files |
26 | read_value() |
27 | { |
28 | local var="$1" |
29 | local file="$2" |
30 | local value |
31 | |
32 | # local all possible vars |
33 | # global |
34 | local ONBOOT |
35 | local NETWORKING |
36 | |
37 | # static |
38 | local IP |
39 | local NETMASK |
40 | local BROADCAST |
41 | local NETWORKING |
42 | local FORCE_MAC_TO |
43 | |
44 | # dhcp |
45 | local DHCP_PROG |
46 | local DHCP_START |
47 | local DHCP_STOP |
48 | |
49 | # default gw |
50 | local GATEWAY |
51 | local GATEWAY_IF |
52 | |
53 | # wireless extensions |
54 | local WIRELESS_AP |
55 | local WIRELESS_AUTH_MODE |
56 | local WIRELESS_BITRATE |
57 | local WIRELESS_CHANNEL |
58 | local WIRELESS_DEFAULT_KEY |
59 | local WIRELESS_ESSID |
60 | local WIRELESS_FREQUENCY |
61 | local WIRELESS_KEY |
62 | local WIRELESS_KEY_ASCII |
63 | local WIRELESS_KEY_0 |
64 | local WIRELESS_KEY_1 |
65 | local WIRELESS_KEY_2 |
66 | local WIRELESS_KEY_3 |
67 | local WIRELESS_KEY_LENGTH |
68 | local WIRELESS_MODE |
69 | local WIRELESS_NICK |
70 | local WIRELESS_NWID |
71 | local WIRELESS_POWER |
72 | local WIRELESS_WPA_DRIVER |
73 | |
74 | local BRIDGE_INTERFACES |
75 | local BRIDGE_STP |
76 | local BRIDGE_AGEING_TIME |
77 | local BRIDGE_PRIORITY |
78 | local BRIDGE_FORWARD_DELAY |
79 | local BRIDGE_HELLO_TIME |
80 | local BRIDGE_MAX_MESSAGE_AGE |
81 | local BRIDGE_PATH_COST |
82 | local BRIDGE_PORT_PRIORITY |
83 | |
84 | source ${file} |
85 | eval value=\$$(echo ${var}) |
86 | echo "${value}" |
87 | } |
88 | |
89 | checkconfig() |
90 | { |
91 | if [[ -z ${NETWORKING} ]] |
92 | then |
93 | echo "NETWORKING missing in net.${iface}, aborted" |
94 | exit 1 |
95 | fi |
96 | |
97 | case "${NETWORKING}" in |
98 | static) |
99 | if [[ -z ${IP} ]] |
100 | then |
101 | echo "IP missing in net.${iface}, aborted" |
102 | exit 1 |
103 | fi |
104 | |
105 | if [[ -z ${NETMASK} ]] |
106 | then |
107 | echo -n "NETMASK missing in net.${iface}, " |
108 | echo "using ${DEFAULT_NETMASK}" |
109 | NETMASK="${DEFAULT_NETMASK}" |
110 | fi |
111 | |
112 | if [[ -z ${BROADCAST} ]] |
113 | then |
114 | echo -n "BROADCAST missing in net.${iface}, " |
115 | echo "using default address" |
116 | fi |
117 | ;; |
118 | |
119 | dhcp) |
120 | if [[ -z ${DHCP_PROG} ]] |
121 | then |
122 | echo -n "DHCP_PROG missing in net.${iface}," |
123 | echo "using default programm ${DEFAULT_DHCP_PROG}" |
124 | DHCP_PROG="${DEFAULT_DHCP_PROG}" |
125 | fi |
126 | [[ -z ${DHCP_START} ]] && DHCP_START="${DEFAULT_DHCP_START}" |
127 | [[ -z ${DHCP_STOP} ]] && DHCP_STOP="${DEFAULT_DHCP_STOP}" |
128 | ;; |
129 | |
130 | esac |
131 | } |
132 | |
133 | # onboot_interface_list /path/to/files* |
134 | onboot_interface_list() |
135 | { |
136 | local file |
137 | local devices |
138 | local iface |
139 | |
140 | # get list of all devices |
141 | for file in $@ |
142 | do |
143 | iface="$(basename ${file} | sed s/net.//)" |
144 | |
145 | # exclude backup files and exclude net.routes and net.sample too |
146 | case "${iface}" in |
147 | *~) continue ;; |
148 | routes) continue ;; |
149 | sample) continue ;; |
150 | esac |
151 | |
152 | if [[ $(read_value ONBOOT ${file}) = yes ]] |
153 | then |
154 | devices="${devices} ${iface}" |
155 | fi |
156 | done |
157 | |
158 | echo "${devices}" |
159 | } |
160 | |
161 | config_wireless_wep() |
162 | { |
163 | local iface="$1" |
164 | |
165 | if [[ -z ${iface} ]] |
166 | then |
167 | echo "WEP: no \$iface given. Aborting setup." |
168 | return 1 |
169 | fi |
170 | |
171 | iwconfig "${iface}" enc on |
172 | [[ -n ${WIRELESS_KEY_LENGTH} ]] && iwconfig "${iface}" enc "${WIRELESS_KEY_LENGTH}" |
173 | [[ -n ${WIRELESS_KEY} ]] && iwconfig "${iface}" key "${WIRELESS_KEY}" |
174 | [[ -n ${WIRELESS_KEY_ASCII} ]] && iwconfig "${iface}" key s:"${WIRELESS_KEY_ASCII}" |
175 | } |
176 | |
177 | config_wireless_wpa() |
178 | { |
179 | local iface="$1" |
180 | |
181 | if [[ -z ${iface} ]] |
182 | then |
183 | echo "WPA: no \$iface given. Aborting setup." |
184 | return 1 |
185 | fi |
186 | |
187 | if [ ! -x $(type -P wpa_supplicant) ] |
188 | then |
189 | echo "WPA: wpa_supplicant not installed. Aborting setup." |
190 | return 1 |
191 | fi |
192 | |
193 | # get default settings |
194 | [[ -f /etc/conf.d/wpa_supplicant ]] && source /etc/conf.d/wpa_supplicant |
195 | |
196 | # check the configuration |
197 | [[ -z ${WIRELESS_WPA_CONFIG} ]] && WIRELESS_WPA_CONFIG=/etc/wpa_supplicant/wpa_supplicant.auto |
198 | [[ -z ${WIRELESS_WPA_SKEL} ]] && WIRELESS_WPA_SKEL=/etc/conf.d/wpa_supplicant.skel |
199 | |
200 | # use wext as default driver, do not abort here anymore |
201 | [[ -z ${WIRELESS_WPA_DRIVER} ]] && WIRELESS_WPA_DRIVER=wext |
202 | |
203 | # write a config with the settings from net.${iface} |
204 | # only wpa-psk ! all other needs manual setup |
205 | if [[ ${WIRELESS_WPA_AUTOCONF} = true ]] |
206 | then |
207 | # write default cfg from skeleton |
208 | cat ${WIRELESS_WPA_SKEL} > ${WIRELESS_WPA_CONFIG} |
209 | |
210 | local wpa_proto |
211 | case ${WIRELESS_AUTH_MODE} in |
212 | wpa) wpa_proto="WPA" ;; |
213 | wpa2) wpa_proto="WPA2" ;; |
214 | esac |
215 | |
216 | # setup the network entry |
217 | sed -i -e "s:@WIRELESS_ESSID@:${WIRELESS_ESSID}:g" \ |
218 | -e "s:@WIRELESS_KEY@:${WIRELESS_KEY_ASCII}:g" \ |
219 | -e "s:@WIRELESS_AUTH_MODE@:${wpa_proto}:g" \ |
220 | ${WIRELESS_WPA_CONFIG} |
221 | fi |
222 | |
223 | # remove old state dir |
224 | [ -d /run/wpa_supplicant ] && rm -rf /run/wpa_supplicant |
225 | |
226 | # now run the wpa_supplicant dameon |
227 | wpa_supplicant -B \ |
228 | -D"${WIRELESS_WPA_DRIVER}" \ |
229 | -c"${WIRELESS_WPA_CONFIG}" \ |
230 | -i"${iface}" \ |
231 | ${WIRELESS_WPA_OPTS} |
232 | |
233 | # echo wait 5 seconds |
234 | echo " Waiting 5 seconds to retrieve authentification reply ... " |
235 | sleep 5 |
236 | } |
237 | |
238 | setup_wireless_extensions() |
239 | { |
240 | local iface="$1" |
241 | |
242 | if [[ -z ${iface} ]] |
243 | then |
244 | echo "WIRELESS_EXTENSIONS: no \$iface given. Aborting setup." |
245 | return 1 |
246 | fi |
247 | |
248 | [[ -n ${WIRELESS_BITRATE} ]] && iwconfig "${iface}" rate "${WIRELESS_BITRATE}" |
249 | [[ -n ${WIRELESS_CHANNEL} ]] && iwconfig "${iface}" channel "${WIRELESS_CHANNEL}" |
250 | [[ -n ${WIRELESS_ESSID} ]] && iwconfig "${iface}" essid "${WIRELESS_ESSID}" |
251 | [[ -n ${WIRELESS_FREQUENCY} ]] && iwconfig "${iface}" freq "${WIRELESS_FREQUENCY}" |
252 | [[ -n ${WIRELESS_MODE} ]] && iwconfig "${iface}" mode "${WIRELESS_MODE}" |
253 | [[ -n ${WIRELESS_NICK} ]] && iwconfig "${iface}" nick "${WIRELESS_NICK}" |
254 | |
255 | case "${WIRELESS_AUTH_MODE}" in |
256 | wpa|wpa2) config_wireless_wpa "${iface}" ;; |
257 | wep|on) config_wireless_wep "${iface}" ;; |
258 | off) iwconfig "${iface}" enc off ;; |
259 | esac |
260 | } |
261 | |
262 | config_bridge_options() |
263 | { |
264 | local iface="$1" |
265 | local i |
266 | local port |
267 | local cost |
268 | local prio |
269 | |
270 | # enable spanning-tree protocol |
271 | case ${BRIDGE_STP} in |
272 | on|off) brctl stp "${iface}" "${BRIDGE_STP}" ;; |
273 | *) echo "BRIDGE: unkown value \$BRIDGE_STP='$BRIDGE_STP'."; return 1 ;; |
274 | esac |
275 | |
276 | # configure ageing time |
277 | if [[ ! -z ${BRIDGE_AGEING_TIME} ]] |
278 | then |
279 | brctl setageing "${iface}" "${BRIDGE_AGEING_TIME}" |
280 | fi |
281 | |
282 | # configure bridge priority |
283 | if [[ ! -z ${BRIDGE_PRIORITY} ]] |
284 | then |
285 | brctl setbridgeprio "${iface}" "${BRIDGE_PRIORITY}" |
286 | fi |
287 | |
288 | # configure forward delay |
289 | if [[ ! -z ${BRIDGE_FORWARD_DELAY} ]] |
290 | then |
291 | brctl setfd "${iface}" "${BRIDGE_FORWARD_DELAY}" |
292 | fi |
293 | |
294 | # configure hello time |
295 | if [[ ! -z ${BRIDGE_HELLO_TIME} ]] |
296 | then |
297 | brctl sethello "${iface}" "${BRIDGE_HELLO_TIME}" |
298 | fi |
299 | |
300 | # configure maximal message age |
301 | if [[ ! -z ${BRIDGE_MAX_MESSAGE_AGE} ]] |
302 | then |
303 | brctl setmaxage "${iface}" "${BRIDGE_MAX_MESSAGE_AGE}" |
304 | fi |
305 | |
306 | # configure path cost for every port |
307 | if [[ ! -z ${BRIDGE_PATH_COST} ]] |
308 | then |
309 | for i in ${BRIDGE_PATH_COST} |
310 | do |
311 | port="${i%=*}" |
312 | cost="${i#*=}" |
313 | [[ ! -z ${port} ]] && brctl pathcost "${iface}" "${port}" "${cost}" |
314 | done |
315 | fi |
316 | |
317 | # configure port priority for every port |
318 | if [[ ! -z ${BRIDGE_PORT_PRIORITY} ]] |
319 | then |
320 | for i in ${BRIDGE_PORT_PRIORITY} |
321 | do |
322 | port="${i%=*}" |
323 | prio="${i#*=}" |
324 | [[ ! -z ${port} ]] && brctl setportprio "${iface}" "${port}" "${prio}" |
325 | done |
326 | fi |
327 | } |
328 | |
329 | config_bridge_devices() |
330 | { |
331 | local iface="$1" |
332 | local method="$2" |
333 | local bport |
334 | |
335 | if [[ -z ${iface} ]] |
336 | then |
337 | echo "BRIDGE: no \$iface given. Aborting setup." |
338 | return 1 |
339 | fi |
340 | |
341 | if [[ -z ${method} ]] |
342 | then |
343 | echo "BRIDGE: no \$method given. Aborting setup." |
344 | return 1 |
345 | fi |
346 | |
347 | # first check for brctl |
348 | if [[ -z $(type -P brctl) ]] |
349 | then |
350 | echo "brctl not found! Please install 'net-misc/bridge-utils'." |
351 | return 1 |
352 | fi |
353 | |
354 | # check the config |
355 | if [[ -z ${BRIDGE_INTERFACES} ]] |
356 | then |
357 | echo "BRIDGE: no \$BRIDGE_INTERFACES given. Aborting setup." |
358 | return 1 |
359 | fi |
360 | |
361 | case ${method} in |
362 | add) |
363 | # setup the bridge device |
364 | brctl addbr "${iface}" |
365 | for bport in ${BRIDGE_INTERFACES} |
366 | do |
367 | # enter promiscous mode |
368 | ifconfig "${bport}" 0.0.0.0 promisc |
369 | # now setup the bridge |
370 | brctl addif "${iface}" "${bport}" |
371 | done |
372 | # configure all other options |
373 | config_bridge_options "${iface}" |
374 | ;; |
375 | |
376 | remove) |
377 | for bport in ${BRIDGE_INTERFACE} |
378 | do |
379 | # bring the interface down |
380 | ifconfig "${bport}" down |
381 | # remove the interface from the bridge |
382 | brctl delif "${iface}" "${bport}" |
383 | done |
384 | # bring the bridge down |
385 | brctl delbr "${iface}" |
386 | ;; |
387 | esac |
388 | |
389 | # unset the bridge variable to be safe |
390 | unset BRIDGE_INTERFACES |
391 | # continue to setup generic networking |
392 | } |
393 | |
394 | config_routes() |
395 | { |
396 | local method="$1" |
397 | local message |
398 | |
399 | # only add and del are allowed |
400 | case ${method} in |
401 | add) message="Adding" ;; |
402 | del) message="Removing" ;; |
403 | *) |
404 | echo "config_routes: unsupported \$method '${method}'." |
405 | exit 1 |
406 | ;; |
407 | esac |
408 | |
409 | # adds/delete user routes |
410 | if [[ -f /etc/conf.d/net.routes ]] |
411 | then |
412 | ( cat /etc/conf.d/net.routes; echo ) | # make sure there is a LF at the end |
413 | while read route |
414 | do |
415 | case "${route}" in |
416 | \#*|"") continue ;; |
417 | esac |
418 | # do not esacpe ${route} or it breaks! |
419 | route "${method}" ${route} |
420 | done |
421 | fi |
422 | } |
423 | |
424 | networking_start() |
425 | { |
426 | local iface dns routes ALL_INTERFACES |
427 | |
428 | if [[ -z $1 ]] |
429 | then |
430 | ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*) |
431 | else |
432 | if [[ -e /etc/conf.d/net.$1 ]] |
433 | then |
434 | ALL_INTERFACES="$1" |
435 | else |
436 | echo "Interface $1 does not exist. Aborting" |
437 | exit 1 |
438 | fi |
439 | fi |
440 | |
441 | # get list of all devices |
442 | for iface in ${ALL_INTERFACES} |
443 | do |
444 | # checkconfig |
445 | source /etc/conf.d/net.${iface} || exit 1 |
446 | checkconfig |
447 | |
448 | # wait until the device is created |
449 | wait_online 5 "${iface}" || { echo "device '${iface}' does not exist"; continue; } |
450 | |
451 | # setup mac |
452 | if [[ -n ${FORCE_MAC_TO} ]] |
453 | then |
454 | ifconfig "${iface}" hw ether "${FORCE_MAC_TO}" |
455 | fi |
456 | |
457 | # setup bridges |
458 | if [[ ${iface} = br[0-9]* ]] |
459 | then |
460 | config_bridge_devices "${iface}" add |
461 | fi |
462 | |
463 | # now configure wireless_extensions |
464 | [ -x $(type -P iwconfig) ] && setup_wireless_extensions "${iface}" |
465 | |
466 | # activate the interface |
467 | ifconfig "${iface}" up |
468 | |
469 | # setup static or dhcp |
470 | case ${NETWORKING} in |
471 | dhcp|DHCP) |
472 | ${DHCP_PROG} ${DHCP_START} "${iface}" ;; |
473 | static|STATIC) |
474 | ifconfig "${iface}" "${IP}" netmask "${NETMASK}" broadcast "${BROADCAST}" ;; |
475 | esac |
476 | |
477 | # setup def gw |
478 | if [[ -n ${GATEWAY} ]] |
479 | then |
480 | route add default gateway "${GATEWAY}" metric 1 dev "${iface}" |
481 | unset GATEWAY |
482 | fi |
483 | |
484 | # setup /etc/resolv.conf |
485 | # add given nameserver |
486 | if [[ -n ${NAMESERVER} ]] |
487 | then |
488 | # whipe out the old one |
489 | echo "# Generated by the magellan-initscripts for ${iface}" > /etc/resolv.conf |
490 | # include head |
491 | if [ -f /etc/resolv.conf.head ] |
492 | then |
493 | cat /etc/resolv.conf.head >> /etc/resolv.conf |
494 | else |
495 | echo "# /etc/resolv.conf.head can replace this line" >> /etc/resolv.conf |
496 | fi |
497 | |
498 | for dns in ${NAMESERVER} |
499 | do |
500 | echo "nameserver ${dns}" >> /etc/resolv.conf |
501 | done |
502 | |
503 | # include tail |
504 | if [ -f /etc/resolv.conf.tail ] |
505 | then |
506 | cat /etc/resolv.conf.tail >> /etc/resolv.conf |
507 | else |
508 | echo "# /etc/resolv.conf.tail can replace this line" >> /etc/resolv.conf |
509 | fi |
510 | |
511 | unset NAMESERVER |
512 | fi |
513 | done |
514 | |
515 | # setup user routes |
516 | config_routes add |
517 | } |
518 | |
519 | networking_stop() |
520 | { |
521 | if [[ -z $1 ]] |
522 | then |
523 | ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*) |
524 | else |
525 | if [[ -e /etc/conf.d/net.$1 ]] |
526 | then |
527 | ALL_INTERFACES="$1" |
528 | else |
529 | echo "Interface $1 does not exist. Aborting" |
530 | exit 1 |
531 | fi |
532 | fi |
533 | |
534 | # get list of all devices |
535 | for iface in ${ALL_INTERFACES} |
536 | do |
537 | source /etc/conf.d/net.${iface} || exit 1 |
538 | checkconfig |
539 | |
540 | if [[ -n ${GATEWAY} ]] |
541 | then |
542 | route del -net default |
543 | fi |
544 | |
545 | ifconfig "${iface}" down |
546 | |
547 | # remove bridges |
548 | if [[ ${iface} = br[0-9]* ]] |
549 | then |
550 | config_bridge_devices "${iface}" remove |
551 | fi |
552 | |
553 | # shutdown dhcp-daemon |
554 | if [[ ${NETWORKING} = dhcp ]] && [[ -n $(pidof $(basename ${DHCP_PROG})) ]] |
555 | then |
556 | if [[ -z ${DHCP_STOP} ]] |
557 | then |
558 | killall -15 ${DHCP_PROG} |
559 | sleep 1 |
560 | # try harder |
561 | if [[ -n $(pidof $(basename ${DHCP_PROG})) ]] |
562 | then |
563 | killall -9 ${DHCP_PROG} |
564 | fi |
565 | else |
566 | ${DHCP_PROG} ${DHCP_STOP} "${iface}" |
567 | fi |
568 | fi |
569 | |
570 | # shutdown wpa_supplicant daemon |
571 | if [[ -n $(pidof wpa_supplicant) ]] |
572 | then |
573 | killall wpa_supplicant |
574 | fi |
575 | done |
576 | |
577 | # remove state dir |
578 | if [ -d /run/wpa_supplicant ] |
579 | then |
580 | rm -rf /run/wpa_supplicant |
581 | fi |
582 | |
583 | # delete user routes |
584 | config_routes del |
585 | } |
586 | |
587 | case $1 in |
588 | start) |
589 | networking_start $2 ;; |
590 | |
591 | stop) |
592 | networking_stop $2 ;; |
593 | |
594 | restart) |
595 | $0 stop |
596 | sleep 1 |
597 | $0 start |
598 | ;; |
599 | |
600 | *) |
601 | echo "Usage: $0 {start|stop|restart} [interface]" |
602 | exit 1 |
603 | ;; |
604 | esac |