1 | #!/bin/sh |
---|
2 | # |
---|
3 | # network-functions-ipv6 |
---|
4 | # |
---|
5 | # Taken from: network-functions-ipv6 |
---|
6 | # (P) & (C) 1997-2005 by Peter Bieringer <pb@bieringer.de> |
---|
7 | # |
---|
8 | # You will find more information on the initscripts-ipv6 homepage at |
---|
9 | # http://www.deepspace6.net/projects/initscripts-ipv6.html |
---|
10 | # |
---|
11 | # Version: 2006-08-03 |
---|
12 | # |
---|
13 | # |
---|
14 | |
---|
15 | |
---|
16 | |
---|
17 | |
---|
18 | |
---|
19 | |
---|
20 | ##### Logging function |
---|
21 | # $1: <message> : message string |
---|
22 | # $2: [stdout|stderr].[err|warn[ing]|inf[o]|notice] : log level with optional channel, default is "stdout.notice" |
---|
23 | # [syslog.[facility.].err|warn[ing]|inf[o]|notice : syslog channel, default is "syslog.user.notice" |
---|
24 | # $3: <function name> : name of function which calls this log function, can be empty using "" |
---|
25 | # return code: 0=ok 1=argument error 3=major problem |
---|
26 | ipv6_log() { |
---|
27 | local message="$1" |
---|
28 | local level="$2" |
---|
29 | local name="$3" |
---|
30 | |
---|
31 | if [ -z "$message" ]; then |
---|
32 | echo $"ERROR: [ipv6_log] Missing 'message' (arg 1)" >/dev/stderr |
---|
33 | return 1 |
---|
34 | fi |
---|
35 | if [ -z "$level" ]; then |
---|
36 | local level="stdout.notice" |
---|
37 | fi |
---|
38 | |
---|
39 | |
---|
40 | # Map loglevel now |
---|
41 | local fn=1 |
---|
42 | local fnawk="print \$$fn" |
---|
43 | local t="`echo $level | awk -F. "{ $fnawk }"`" |
---|
44 | |
---|
45 | # Check channel, if given |
---|
46 | case $t in |
---|
47 | 'stdout'|'stderr'|'syslog') |
---|
48 | local channel="$t" |
---|
49 | local fn=$[ $fn + 1 ] |
---|
50 | ;; |
---|
51 | *) |
---|
52 | local channel="stdout" |
---|
53 | ;; |
---|
54 | esac |
---|
55 | |
---|
56 | # Check syslog facilty, if given |
---|
57 | if [ "$channel" = "syslog" ]; then |
---|
58 | local fnawk="print \$$fn" |
---|
59 | local t="`echo $level | awk -F. "{ $fnawk }"`" |
---|
60 | case $t in |
---|
61 | 'local0'|'local1'|'local2'|'local3'|'local4'|'local5'|'local6'|'local7'|'daemon') |
---|
62 | local facility="$t" |
---|
63 | local fn=$[ $fn + 1 ] |
---|
64 | ;; |
---|
65 | *) |
---|
66 | local facility="user" |
---|
67 | ;; |
---|
68 | esac |
---|
69 | fi |
---|
70 | |
---|
71 | local fnawk="print \$$fn" |
---|
72 | local t="`echo $level | awk -F. "{ $fnawk }"`" |
---|
73 | |
---|
74 | # Map priority |
---|
75 | [ "$t" = "inf" ] && local t="info" |
---|
76 | [ "$t" = "deb" ] && local t="debug" |
---|
77 | [ "$t" = "warning" ] && local t="warn" |
---|
78 | [ "$t" = "error" ] && local t="err" |
---|
79 | [ "$t" = "critical" ] && local t="crit" |
---|
80 | |
---|
81 | # Check priority, if given |
---|
82 | case $t in |
---|
83 | 'info'|'debug'|'notice'|'warn'|'err'|'crit') |
---|
84 | local priority="$t" |
---|
85 | local fn=$[ $fn + 1 ] |
---|
86 | ;; |
---|
87 | *) |
---|
88 | local priority="notice" |
---|
89 | ;; |
---|
90 | esac |
---|
91 | |
---|
92 | local fnawk="print \$$fn" |
---|
93 | local t="`echo $level | awk -F. "{ $fnawk }"`" |
---|
94 | if [ -n "$t" ]; then |
---|
95 | echo $"ERROR: [ipv6_log] Loglevel isn't valid '$level' (arg 2)" >/dev/stderr |
---|
96 | return 1 |
---|
97 | fi |
---|
98 | |
---|
99 | # Generate function text |
---|
100 | if [ -z "$name" ]; then |
---|
101 | local txt_name="" |
---|
102 | else |
---|
103 | local txt_name="[$name]" |
---|
104 | fi |
---|
105 | |
---|
106 | # Log message |
---|
107 | case $channel in |
---|
108 | 'stdout'|'stderr') |
---|
109 | # Generate level text |
---|
110 | case $priority in |
---|
111 | 'debug') |
---|
112 | local txt_level=$"DEBUG " |
---|
113 | ;; |
---|
114 | 'err') |
---|
115 | local txt_level=$"ERROR " |
---|
116 | ;; |
---|
117 | 'warn') |
---|
118 | local txt_level=$"WARN " |
---|
119 | ;; |
---|
120 | 'crit') |
---|
121 | local txt_level=$"CRITICAL " |
---|
122 | ;; |
---|
123 | 'info') |
---|
124 | local txt_level=$"INFO " |
---|
125 | ;; |
---|
126 | 'notice') |
---|
127 | local txt_level=$"NOTICE " |
---|
128 | ;; |
---|
129 | esac |
---|
130 | |
---|
131 | [ -n "$txt_name" ] && local txt_name="$txt_name " |
---|
132 | |
---|
133 | if [ "$channel" = "stderr" ]; then |
---|
134 | echo "$txt_level: ${txt_name}${message}" >/dev/stderr |
---|
135 | elif [ "$channel" = "stdout" ]; then |
---|
136 | echo "$txt_level: ${txt_name}${message}" |
---|
137 | fi |
---|
138 | ;; |
---|
139 | 'syslog') |
---|
140 | # note: logger resides in /usr/bin, but not used by default |
---|
141 | if ! [ -x logger ]; then |
---|
142 | echo $"ERROR: [ipv6_log] Syslog is chosen, but binary 'logger' doesn't exist or isn't executable" >/dev/stderr |
---|
143 | return 3 |
---|
144 | fi |
---|
145 | if [ -z "$txt_name" ]; then |
---|
146 | logger -p $facility.$priority $message |
---|
147 | else |
---|
148 | logger -p $facility.$priority -t "$txt_name" "$message" |
---|
149 | fi |
---|
150 | ;; |
---|
151 | *) |
---|
152 | echo $"ERROR: [ipv6_log] Cannot log to channel '$channel'" >/dev/stderr |
---|
153 | return 3 |
---|
154 | ;; |
---|
155 | esac |
---|
156 | |
---|
157 | return 0 |
---|
158 | } |
---|
159 | |
---|
160 | |
---|
161 | ###### Beginning of main code here, always executed on "source|. /etc/sysconfig/network-scripts/network-functions-ipv6" |
---|
162 | |
---|
163 | |
---|
164 | |
---|
165 | ###### End of main code here |
---|
166 | |
---|
167 | |
---|
168 | ##### Test for IPv6 capabilites |
---|
169 | # $1: (optional) testflag: currently supported: "testonly" (do not load a module) |
---|
170 | # return code: 0=ok 2=IPv6 test fails |
---|
171 | ipv6_test() { |
---|
172 | local fn="ipv6_test" |
---|
173 | |
---|
174 | local testflag=$1 |
---|
175 | |
---|
176 | if ! [ -f /proc/net/if_inet6 ]; then |
---|
177 | if [ "$testflag" = "testonly" ]; then |
---|
178 | return 2 |
---|
179 | else |
---|
180 | modprobe ipv6 |
---|
181 | |
---|
182 | if ! [ -f /proc/net/if_inet6 ]; then |
---|
183 | # ipv6_log $"Kernel is not compiled with IPv6 support" crit $fn |
---|
184 | return 2 |
---|
185 | fi |
---|
186 | fi |
---|
187 | fi |
---|
188 | |
---|
189 | if ! [ -d /proc/sys/net/ipv6/conf/ ]; then |
---|
190 | return 2 |
---|
191 | fi |
---|
192 | |
---|
193 | if ! [ -x /sbin/ip ]; then |
---|
194 | ipv6_log $"Utility 'ip' (package: iproute) doesn't exist or isn't executable - stop" crit $fn |
---|
195 | return 2 |
---|
196 | fi |
---|
197 | |
---|
198 | if ! [ -x /sbin/sysctl ]; then |
---|
199 | ipv6_log $"Utility 'sysctl' (package: procps) doesn't exist or isn't executable - stop" crit $fn |
---|
200 | return 2 |
---|
201 | fi |
---|
202 | |
---|
203 | return 0 |
---|
204 | } |
---|
205 | |
---|
206 | |
---|
207 | ##### Get version of this function library |
---|
208 | # stdout: <version number YYYYMMDD> |
---|
209 | getversion_ipv6_functions() { |
---|
210 | local version_ipv6_functions="`cat /etc/sysconfig/network-scripts/network-functions-ipv6 | LC_ALL=C grep "^# Version:" | awk '{ print $3 }' | sed 's/-//g' | sed 's/[A-Za-z]*$//g'`" |
---|
211 | echo $version_ipv6_functions |
---|
212 | return 0 |
---|
213 | } |
---|
214 | |
---|
215 | |
---|
216 | ##### Wrapper for used binaries |
---|
217 | ## ifconfig |
---|
218 | # $*: <arguments...> |
---|
219 | # return code: result of execution |
---|
220 | ipv6_exec_ifconfig() { |
---|
221 | local fn="ipv6_exec_ifconfig" |
---|
222 | |
---|
223 | local options=$* |
---|
224 | |
---|
225 | LC_ALL=C /sbin/ifconfig $options |
---|
226 | |
---|
227 | return $? |
---|
228 | } |
---|
229 | |
---|
230 | |
---|
231 | ## route |
---|
232 | # $*: <arguments...> |
---|
233 | # return code: result of execution |
---|
234 | ipv6_exec_route() { |
---|
235 | local options=$* |
---|
236 | |
---|
237 | LC_ALL=C /sbin/route $options |
---|
238 | |
---|
239 | return $? |
---|
240 | } |
---|
241 | |
---|
242 | |
---|
243 | ## ip |
---|
244 | # $*: <arguments...> |
---|
245 | # return code: result of execution |
---|
246 | ipv6_exec_ip() { |
---|
247 | local options=$* |
---|
248 | |
---|
249 | LC_ALL=C /sbin/ip $options |
---|
250 | |
---|
251 | return $? |
---|
252 | } |
---|
253 | |
---|
254 | |
---|
255 | ## sysctl |
---|
256 | # $*: <arguments...> |
---|
257 | # return code: result of execution |
---|
258 | ipv6_exec_sysctl() { |
---|
259 | local options=$* |
---|
260 | |
---|
261 | LC_ALL=C /sbin/sysctl -e $options |
---|
262 | |
---|
263 | return $? |
---|
264 | } |
---|
265 | |
---|
266 | |
---|
267 | ##### Control IPv6 forwarding |
---|
268 | |
---|
269 | # Control IPv6 forwarding |
---|
270 | # $1: yes|no|on|off : control value |
---|
271 | # $2: [<interface>] : (optional), if not given, global IPv6 forwarding is set [OBSOLETE] |
---|
272 | # return code: 0=ok 1=argument error 2=IPv6 test fails |
---|
273 | ipv6_control_forwarding() { |
---|
274 | local fn="ipv6_control_forwarding" |
---|
275 | |
---|
276 | local fw_control=$1 |
---|
277 | local fw_device=$2 # maybe empty |
---|
278 | |
---|
279 | if [ -z "$fw_control" ]; then |
---|
280 | ipv6_log $"Missing parameter 'forwarding control' (arg 1)" err $fn |
---|
281 | return 1 |
---|
282 | fi |
---|
283 | |
---|
284 | if ! [ "$fw_control" = "yes" -o "$fw_control" = "no" -o "$fw_control" = "on" -o "$fw_control" = "off" ]; then |
---|
285 | ipv6_log $"Forwarding control parameter isn't valid '$fw_control' (arg 1)" err $fn |
---|
286 | return 1 |
---|
287 | fi |
---|
288 | |
---|
289 | ipv6_test || return 2 |
---|
290 | |
---|
291 | if [ "$fw_control" = "yes" -o "$fw_control" = "on" ]; then |
---|
292 | local status=1 |
---|
293 | else |
---|
294 | local status=0 |
---|
295 | fi |
---|
296 | |
---|
297 | # Global control? (if no device is given) |
---|
298 | if [ -z "$fw_device" ]; then |
---|
299 | ipv6_exec_sysctl -w net.ipv6.conf.all.forwarding=$status >/dev/null 2>&1 |
---|
300 | fi |
---|
301 | |
---|
302 | # Per device control (not implemented in kernel) |
---|
303 | if [ -n "$fw_device" ]; then |
---|
304 | ipv6_log $"IPv6 forwarding per device cannot be controlled via sysctl - use netfilter6 instead" warn $fn |
---|
305 | fi |
---|
306 | |
---|
307 | return 0 |
---|
308 | } |
---|
309 | |
---|
310 | |
---|
311 | ##### Static IPv6 route configuration |
---|
312 | |
---|
313 | # Set static IPv6 route |
---|
314 | # $1: <IPv6 network> : to route |
---|
315 | # $2: <IPv6 gateway> : over which $1 should be routed (if "::", gw will be skipped) |
---|
316 | # $3: [<Interface>] : (optional) |
---|
317 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem adding route |
---|
318 | ipv6_add_route() { |
---|
319 | local fn="ipv6_add_route" |
---|
320 | |
---|
321 | local networkipv6=$1 |
---|
322 | local gatewayipv6=$2 |
---|
323 | local device=$3 # maybe empty |
---|
324 | |
---|
325 | if [ -z "$networkipv6" ]; then |
---|
326 | ipv6_log $"Missing parameter 'IPv6-network' (arg 1)" err $fn |
---|
327 | return 1 |
---|
328 | fi |
---|
329 | |
---|
330 | if [ -z "$gatewayipv6" ]; then |
---|
331 | ipv6_log $"Missing parameter 'IPv6-gateway' (arg 2)" err $fn |
---|
332 | return 1 |
---|
333 | fi |
---|
334 | |
---|
335 | ipv6_test || return 2 |
---|
336 | |
---|
337 | ipv6_test_ipv6_addr_valid $networkipv6 || return 2 |
---|
338 | ipv6_test_ipv6_addr_valid $gatewayipv6 || return 2 |
---|
339 | |
---|
340 | if [ -z "$device" ]; then |
---|
341 | local returntxt="`ipv6_exec_ip -6 route add $networkipv6 via $gatewayipv6 metric 1 2>&1`" |
---|
342 | else |
---|
343 | if [ "$gatewayipv6" = "::" ]; then |
---|
344 | local returntxt="`ipv6_exec_ip -6 route add $networkipv6 dev $device metric 1 2>&1`" |
---|
345 | else |
---|
346 | local returntxt="`ipv6_exec_ip -6 route add $networkipv6 via $gatewayipv6 dev $device metric 1 2>&1`" |
---|
347 | fi |
---|
348 | fi |
---|
349 | |
---|
350 | if [ -n "$returntxt" ]; then |
---|
351 | if echo $returntxt | LC_ALL=C grep -q "File exists"; then |
---|
352 | # Netlink: "File exists" |
---|
353 | true |
---|
354 | elif echo $returntxt | LC_ALL=C grep -q "No route to host"; then |
---|
355 | # Netlink: "No route to host" |
---|
356 | ipv6_log $"'No route to host' adding route '$networkipv6' via gateway '$gatewayipv6' through device '$device'" warn $fn |
---|
357 | return 3 |
---|
358 | else |
---|
359 | ipv6_log $"Unknown error" warn $fn |
---|
360 | return 3 |
---|
361 | fi |
---|
362 | fi |
---|
363 | |
---|
364 | return 0 |
---|
365 | } |
---|
366 | |
---|
367 | |
---|
368 | # Delete a static IPv6 route |
---|
369 | # $1: <IPv6 network> : to route |
---|
370 | # $2: <IPv6 gateway> : over which $1 should be routed (if "::", gw will be skipped) |
---|
371 | # $3: [<Interface>] : (optional) |
---|
372 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem adding route |
---|
373 | ipv6_del_route() { |
---|
374 | local fn="ipv6_del_route" |
---|
375 | |
---|
376 | local networkipv6=$1 |
---|
377 | local gatewayipv6=$2 |
---|
378 | local device=$3 # maybe empty |
---|
379 | |
---|
380 | if [ -z "$networkipv6" ]; then |
---|
381 | ipv6_log $"Missing parameter 'IPv6-network' (arg 1)" err $fn |
---|
382 | return 1 |
---|
383 | fi |
---|
384 | |
---|
385 | if [ -z "$gatewayipv6" ]; then |
---|
386 | ipv6_log $"Missing parameter 'IPv6-gateway' (arg 2)" err $fn |
---|
387 | return 1 |
---|
388 | fi |
---|
389 | |
---|
390 | ipv6_test testonly || return 2 |
---|
391 | |
---|
392 | # Test, whether given IPv6 address is valid |
---|
393 | ipv6_test_ipv6_addr_valid $networkipv6 || return 1 |
---|
394 | ipv6_test_ipv6_addr_valid $gatewayipv6 || return 1 |
---|
395 | |
---|
396 | if [ -z "$device" ]; then |
---|
397 | ipv6_exec_ip -6 route del $networkipv6 via $gatewayipv6 |
---|
398 | local result=$? |
---|
399 | else |
---|
400 | if [ "$gatewayipv6" = "::" ]; then |
---|
401 | ipv6_exec_ip -6 route del $networkipv6 dev $device |
---|
402 | local result=$? |
---|
403 | else |
---|
404 | ipv6_exec_ip -6 route del $networkipv6 via $gatewayipv6 dev $device |
---|
405 | local result=$? |
---|
406 | fi |
---|
407 | fi |
---|
408 | |
---|
409 | if [ $result -eq 2 ]; then |
---|
410 | # Netlink: "No such process" |
---|
411 | true |
---|
412 | elif [ $result -ne 0 ]; then |
---|
413 | return 3 |
---|
414 | fi |
---|
415 | |
---|
416 | return 0 |
---|
417 | } |
---|
418 | |
---|
419 | |
---|
420 | # Delete all static IPv6 routes through a given interface |
---|
421 | # $1: <Interface> |
---|
422 | # $2: [<Gateway>] : to match (optional) |
---|
423 | # return code: 0=ok 1=argument error 2=IPv6 test fails |
---|
424 | ipv6_cleanup_routes() { |
---|
425 | local fn="ipv6_cleanup_routes" |
---|
426 | |
---|
427 | local device=$1 |
---|
428 | local gatewaymatch=$2 |
---|
429 | |
---|
430 | if [ -z "$device" ]; then |
---|
431 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
432 | return 1 |
---|
433 | fi |
---|
434 | |
---|
435 | ipv6_test testonly || return 2 |
---|
436 | |
---|
437 | if [ -n "$gatewaymatch" ]; then |
---|
438 | # Get all IPv6 routes (except default link-local and multicast) through given interface via a given gateway and remove them |
---|
439 | ipv6_exec_ip -6 route show dev $device via $gatewaymatch | LC_ALL=C grep -v -w expires | LC_ALL=C egrep -v "^fe80::/64|^ff00::/8" | while read ipv6net dummy; do |
---|
440 | ipv6_del_route $ipv6net $gatewaymatch $device |
---|
441 | done |
---|
442 | else |
---|
443 | # Get all IPv6 routes (except default link-local and multicast) through given interface and remove them |
---|
444 | ipv6_exec_ip -6 route show dev $device | LC_ALL=C grep -v -w expires | LC_ALL=C egrep -v "^fe80::/64|^ff00::/8" | while read ipv6net dummy; do |
---|
445 | ipv6_del_route $ipv6net :: $device |
---|
446 | done |
---|
447 | fi |
---|
448 | |
---|
449 | return 0 |
---|
450 | } |
---|
451 | |
---|
452 | |
---|
453 | ##### automatic tunneling configuration |
---|
454 | |
---|
455 | ## Configure automatic tunneling up |
---|
456 | # return code: 0=ok 2=IPv6 test fails 3=major problem |
---|
457 | ipv6_enable_autotunnel() { |
---|
458 | local fn="ipv6_enable_autotunnel" |
---|
459 | |
---|
460 | ipv6_test || return 2 |
---|
461 | |
---|
462 | # enable IPv6-over-IPv4 tunnels |
---|
463 | if ipv6_test_device_status sit0; then |
---|
464 | true |
---|
465 | else |
---|
466 | # bring up basic tunnel device |
---|
467 | ipv6_exec_ip link set sit0 up |
---|
468 | |
---|
469 | if ! ipv6_test_device_status sit0; then |
---|
470 | ipv6_log $"Tunnel device 'sit0' enabling didn't work" err $fn |
---|
471 | return 3 |
---|
472 | fi |
---|
473 | |
---|
474 | # Set sysctls proper (regardless "default") |
---|
475 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.forwarding=1 >/dev/null 2>&1 |
---|
476 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.accept_ra=0 >/dev/null 2>&1 |
---|
477 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.accept_redirects=0 >/dev/null 2>&1 |
---|
478 | fi |
---|
479 | |
---|
480 | return 0 |
---|
481 | } |
---|
482 | |
---|
483 | |
---|
484 | ## Configure automatic tunneling down |
---|
485 | # return code: 0=ok 2=IPv6 test fails 3=major problem |
---|
486 | ipv6_disable_autotunnel() { |
---|
487 | local fn="ipv6_disable_autotunnel" |
---|
488 | |
---|
489 | ipv6_test testonly || return 2 |
---|
490 | |
---|
491 | if ipv6_test_device_status sit0; then |
---|
492 | |
---|
493 | # disable IPv6-over-IPv4 tunnels (if a tunnel is no longer up) |
---|
494 | if ipv6_exec_ip -6 route show dev sit0 | LC_ALL=C grep -w via | awk '{ print $3 }' | LC_ALL=C grep -v -q "^::$"; then |
---|
495 | # still existing routes, skip shutdown of sit0 |
---|
496 | true |
---|
497 | elif ipv6_exec_ip -6 -o addr show dev sit0 | awk '{ print $4 }' | LC_ALL=C grep -v -q '^::'; then |
---|
498 | # still existing IPv6 addresses, skip shutdown of sit0 |
---|
499 | true |
---|
500 | else |
---|
501 | # take down basic tunnel device |
---|
502 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.forwarding=0 >/dev/null 2>&1 |
---|
503 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.accept_ra=0 >/dev/null 2>&1 |
---|
504 | ipv6_exec_sysctl -w net.ipv6.conf.sit0.accept_redirects=0 >/dev/null 2>&1 |
---|
505 | |
---|
506 | ipv6_exec_ip link set sit0 down |
---|
507 | |
---|
508 | if ipv6_test_device_status sit0; then |
---|
509 | ipv6_log $"Tunnel device 'sit0' is still up" err $fn |
---|
510 | return 3 |
---|
511 | fi |
---|
512 | fi |
---|
513 | fi |
---|
514 | |
---|
515 | return 0 |
---|
516 | } |
---|
517 | |
---|
518 | |
---|
519 | ##### Interface configuration |
---|
520 | |
---|
521 | ## Add an IPv6 address for given interface |
---|
522 | # $1: <Interface> |
---|
523 | # $2: <IPv6 address[/prefix]> |
---|
524 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
525 | ipv6_add_addr_on_device() { |
---|
526 | local fn="ipv6_add_addr_on_device" |
---|
527 | |
---|
528 | local device=$1 |
---|
529 | local address=$2 |
---|
530 | |
---|
531 | if [ -z "$device" ]; then |
---|
532 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
533 | return 1 |
---|
534 | fi |
---|
535 | |
---|
536 | if [ -z "$address" ]; then |
---|
537 | ipv6_log $"Missing parameter 'IPv6-address' (arg 2)" err $fn |
---|
538 | return 1 |
---|
539 | fi |
---|
540 | |
---|
541 | ipv6_test || return 2 |
---|
542 | |
---|
543 | ipv6_test_ipv6_addr_valid $address || return 1 |
---|
544 | |
---|
545 | ipv6_test_device_status $device |
---|
546 | local result=$? |
---|
547 | |
---|
548 | if [ "$result" = "0" ]; then |
---|
549 | true |
---|
550 | elif [ "$result" != "11" ]; then |
---|
551 | ipv6_log $"Device '$device' doesn't exist" err $fn |
---|
552 | return 3 |
---|
553 | else |
---|
554 | ipv6_exec_ip link set $device up |
---|
555 | |
---|
556 | if ! ipv6_test_device_status $device; then |
---|
557 | ipv6_log $"Device '$device' enabling didn't work" err $fn |
---|
558 | return 3 |
---|
559 | fi |
---|
560 | fi |
---|
561 | |
---|
562 | # Extract address parts |
---|
563 | local prefixlength_implicit="`echo $address | awk -F/ '{ print $2 }'`" |
---|
564 | local address_implicit="`echo $address | awk -F/ '{ print $1 }'`" |
---|
565 | |
---|
566 | # Check prefix length and using '64' as default |
---|
567 | if [ -z "$prefixlength_implicit" ]; then |
---|
568 | local prefixlength_implicit="64" |
---|
569 | local address="$address_implicit/$prefixlength_implicit" |
---|
570 | fi |
---|
571 | |
---|
572 | ipv6_exec_ip -6 addr add $address dev $device |
---|
573 | local result=$? |
---|
574 | |
---|
575 | if [ $result -eq 2 ]; then |
---|
576 | return 0 |
---|
577 | elif [ $result -ne 0 ]; then |
---|
578 | ipv6_log $"Cannot add IPv6 address '$address' on dev '$device'" err $fn |
---|
579 | return 3 |
---|
580 | fi |
---|
581 | |
---|
582 | return 0 |
---|
583 | } |
---|
584 | |
---|
585 | |
---|
586 | ## Remove all IPv6 routes and addresses on given interface (cleanup to prevent kernel crashes) |
---|
587 | # $1: <Interface> |
---|
588 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
589 | ipv6_cleanup_device() { |
---|
590 | local fn="ipv6_cleanup_device" |
---|
591 | |
---|
592 | local device=$1 |
---|
593 | |
---|
594 | if [ -z "$device" ]; then |
---|
595 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
596 | return 1 |
---|
597 | fi |
---|
598 | |
---|
599 | ipv6_test testonly || return 2 |
---|
600 | |
---|
601 | # Remove all IPv6 routes through this device (but not "lo") |
---|
602 | if [ "$device" != "lo" ]; then |
---|
603 | ipv6_exec_ip -6 route flush dev $device scope global >/dev/null 2>&1 |
---|
604 | ipv6_exec_ip -6 route flush dev $device scope site >/dev/null 2>&1 |
---|
605 | fi |
---|
606 | |
---|
607 | # Remove all IPv6 addresses on this interface |
---|
608 | ipv6_exec_ip -6 addr flush dev $device scope global >/dev/null 2>&1 |
---|
609 | ipv6_exec_ip -6 addr flush dev $device scope site >/dev/null 2>&1 |
---|
610 | |
---|
611 | return 0 |
---|
612 | } |
---|
613 | |
---|
614 | |
---|
615 | ## Remove all IPv6 6to4 related routes and addresses on given interface |
---|
616 | # $1: <Interface> |
---|
617 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
618 | ipv6_cleanup_6to4_device() { |
---|
619 | local fn="ipv6_cleanup_6to4_device" |
---|
620 | |
---|
621 | local device=$1 |
---|
622 | |
---|
623 | if [ -z "$device" ]; then |
---|
624 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
625 | return 1 |
---|
626 | fi |
---|
627 | |
---|
628 | ipv6_test testonly || return 2 |
---|
629 | |
---|
630 | # Cleanup 6to4 addresses on this device |
---|
631 | ipv6_exec_ip -6 addr show dev $dev scope global permanent | LC_ALL=C grep -w inet6 | awk '{ print $2}' | LC_ALL=C grep "^2002:" | while read addr; do |
---|
632 | ipv6_del_addr_on_device ${dev} ${addr} |
---|
633 | done |
---|
634 | |
---|
635 | # Get all IPv6 routes through given interface related to 6to4 and remove them |
---|
636 | ipv6_exec_ip -6 route show dev $device | LC_ALL=C grep "^2002:" | while read ipv6net dummy; do |
---|
637 | ipv6_del_route $ipv6net :: $device |
---|
638 | done |
---|
639 | |
---|
640 | return 0 |
---|
641 | } |
---|
642 | |
---|
643 | |
---|
644 | ## Remove an IPv6 address on given interface |
---|
645 | # $1: <Interface> |
---|
646 | # $2: <IPv6 address> |
---|
647 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
648 | ipv6_del_addr_on_device() { |
---|
649 | local fn="ipv6_del_addr_on_device" |
---|
650 | |
---|
651 | local device=$1 |
---|
652 | local address=$2 |
---|
653 | |
---|
654 | if [ -z "$device" ]; then |
---|
655 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
656 | return 1 |
---|
657 | fi |
---|
658 | |
---|
659 | if [ -z "$address" ]; then |
---|
660 | ipv6_log $"Missing parameter 'IPv6 address' (arg 2)" err $fn |
---|
661 | return 1 |
---|
662 | fi |
---|
663 | |
---|
664 | ipv6_test testonly || return 2 |
---|
665 | |
---|
666 | ipv6_test_ipv6_addr_valid $address || return 1 |
---|
667 | |
---|
668 | # Extract address parts |
---|
669 | local prefixlength_implicit="`echo $address | awk -F/ '{ print $2 }'`" |
---|
670 | local address_implicit="`echo $address | awk -F/ '{ print $1 }'`" |
---|
671 | |
---|
672 | # Check prefix length and using '64' as default |
---|
673 | if [ -z "$prefixlength_implicit" ]; then |
---|
674 | local prefixlength_implicit="64" |
---|
675 | local address="$address_implicit/$prefixlength_implicit" |
---|
676 | fi |
---|
677 | |
---|
678 | ipv6_exec_ip -6 addr del $address dev $device |
---|
679 | local result=$? |
---|
680 | |
---|
681 | if [ $result -eq 2 ]; then |
---|
682 | return 0 |
---|
683 | elif [ $result -ne 0 ]; then |
---|
684 | ipv6_log $"Cannot delete IPv6 address '$address' on dev '$device'" err $fn |
---|
685 | return 3 |
---|
686 | fi |
---|
687 | |
---|
688 | return 0 |
---|
689 | } |
---|
690 | |
---|
691 | |
---|
692 | ##### Some address test functions |
---|
693 | |
---|
694 | ## Test a given IPv6 address for validity |
---|
695 | # $1: <IPv6 address> |
---|
696 | # $2: [quiet] : (optional) don't display error message |
---|
697 | # return code: 0=ok 1=argument error 10=not valid |
---|
698 | ipv6_test_ipv6_addr_valid() { |
---|
699 | local fn="ipv6_test_ipv6_addr_valid" |
---|
700 | |
---|
701 | local testipv6addr_valid=$1 |
---|
702 | local modequiet=$2 |
---|
703 | |
---|
704 | if [ -z "$testipv6addr_valid" ]; then |
---|
705 | return 1 |
---|
706 | fi |
---|
707 | if [ -n "$modequiet" ]; then |
---|
708 | if [ "$modequiet" != "quiet" ]; then |
---|
709 | ipv6_log $"Parameter '$modequiet' for 'quiet' mode is not valid (arg 2)" err $fn |
---|
710 | return 1 |
---|
711 | fi |
---|
712 | fi |
---|
713 | |
---|
714 | # Extract parts |
---|
715 | local prefixlength_implicit="`echo $testipv6addr_valid | awk -F/ '{ print $2 }'`" |
---|
716 | local address_implicit="`echo $testipv6addr_valid | awk -F/ '{ print $1 }'`" |
---|
717 | |
---|
718 | # Test for a valid format |
---|
719 | if ! echo "$address_implicit" | LC_ALL=C egrep -q '^[[:xdigit:]:.]*$'; then |
---|
720 | if [ "$modequiet" != "quiet" ]; then |
---|
721 | ipv6_log $"Given IPv6 address '$testipv6addr_valid' is not valid" err $fn |
---|
722 | fi |
---|
723 | return 10 |
---|
724 | fi |
---|
725 | |
---|
726 | # Test for prefix length |
---|
727 | if [ -z "$prefixlength_implicit" ]; then |
---|
728 | if echo "$testipv6addr_valid" | LC_ALL=C grep "/$"; then |
---|
729 | # Trailing "/", but no value |
---|
730 | if [ "$modequiet" != "quiet" ]; then |
---|
731 | ipv6_log $"Missing prefix length for given address '$testipv6addr_valid'" err $fn |
---|
732 | fi |
---|
733 | return 10 |
---|
734 | else |
---|
735 | return 0 |
---|
736 | fi |
---|
737 | elif [ $prefixlength_implicit -lt 0 -o $prefixlength_implicit -gt 128 ]; then |
---|
738 | if [ "$modequiet" != "quiet" ]; then |
---|
739 | ipv6_log $"On given address '$testipv6addr_valid' the prefix length is out of range (valid: 0-128)" err $fn |
---|
740 | fi |
---|
741 | return 10 |
---|
742 | fi |
---|
743 | |
---|
744 | return 0 |
---|
745 | } |
---|
746 | |
---|
747 | |
---|
748 | ## Test a given IPv4 address for validity |
---|
749 | # $1: <IPv4 address> |
---|
750 | # $2: [quiet] : (optional) don't display error message |
---|
751 | # return code: 0=ok 1=argument error 10=not valid |
---|
752 | ipv6_test_ipv4_addr_valid() { |
---|
753 | local fn="ipv6_test_ipv4_addr_valid" |
---|
754 | |
---|
755 | local testipv4addr_valid=$1 |
---|
756 | local modequiet=$2 |
---|
757 | |
---|
758 | if [ -z "$testipv4addr_valid" ]; then |
---|
759 | return 1 |
---|
760 | fi |
---|
761 | if [ -n "$modequiet" ]; then |
---|
762 | if [ "$modequiet" != "quiet" ]; then |
---|
763 | ipv6_log $"Parameter '$modequiet' for 'quiet' mode is not valid (arg 2)" err $fn |
---|
764 | return 1 |
---|
765 | fi |
---|
766 | fi |
---|
767 | |
---|
768 | # Test for a valid format |
---|
769 | if echo "$testipv4addr_valid" | LC_ALL=C egrep -q -v '^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$'; then |
---|
770 | if [ "$modequiet" != "quiet" ]; then |
---|
771 | ipv6_log $"Given IPv4 address '$testipv4addr_valid' has no proper format" err $fn |
---|
772 | fi |
---|
773 | return 10 |
---|
774 | fi |
---|
775 | |
---|
776 | # Test for valid IPv4 address parts |
---|
777 | local number1="`echo $testipv4addr_valid | awk -F. '{ print $1 }'`" |
---|
778 | local number2="`echo $testipv4addr_valid | awk -F. '{ print $2 }'`" |
---|
779 | local number3="`echo $testipv4addr_valid | awk -F. '{ print $3 }'`" |
---|
780 | local number4="`echo $testipv4addr_valid | awk -F. '{ print $4 }'`" |
---|
781 | local c=1 |
---|
782 | for number in "$number1" "$number2" "$number3" "$number4"; do |
---|
783 | if [ $number -lt 0 -o $number -gt 255 ]; then |
---|
784 | if [ "$modequiet" != "quiet" ]; then |
---|
785 | ipv6_log $"Part $c of given IPv4 address '$testipv4addr_valid' is out of range" err $fn |
---|
786 | fi |
---|
787 | return 10 |
---|
788 | fi |
---|
789 | local c=$[ $c + 1 ] |
---|
790 | done |
---|
791 | |
---|
792 | return 0 |
---|
793 | } |
---|
794 | |
---|
795 | |
---|
796 | ## Test a given IPv4 address for not a private but unicast one |
---|
797 | # $1: <IPv4 address> |
---|
798 | # return code: 0=ok 1=argument error 10=private or not unicast |
---|
799 | ipv6_test_ipv4_addr_global_usable() { |
---|
800 | local fn="ipv6_test_ipv4_addr_global_usable" |
---|
801 | |
---|
802 | local testipv4addr_globalusable=$1 |
---|
803 | |
---|
804 | |
---|
805 | if [ -z "$testipv4addr_globalusable" ]; then |
---|
806 | return 1 |
---|
807 | fi |
---|
808 | |
---|
809 | # Test for a globally usable IPv4 address now |
---|
810 | # test 0.0.0.0/8 |
---|
811 | /bin/ipcalc --network $testipv4addr_globalusable 255.0.0.0 | LC_ALL=C grep -q "NETWORK=0\.0\.0\.0" && return 10 |
---|
812 | # test 10.0.0.0/8 (RFC 1918 / private) |
---|
813 | /bin/ipcalc --network $testipv4addr_globalusable 255.0.0.0 | LC_ALL=C grep -q "NETWORK=10\.0\.0\.0" && return 10 |
---|
814 | # test 127.0.0.0/8 (loopback) |
---|
815 | /bin/ipcalc --network $testipv4addr_globalusable 255.0.0.0 | LC_ALL=C grep -q "NETWORK=127\.0\.0\.0" && return 10 |
---|
816 | # test 169.254.0.0/16 (APIPA / DHCP link local) |
---|
817 | /bin/ipcalc --network $testipv4addr_globalusable 255.255.0.0 | LC_ALL=C grep -q "NETWORK=169\.254\.0\.0" && return 10 |
---|
818 | # test 172.16.0.0/12 (RFC 1918 / private) |
---|
819 | /bin/ipcalc --network $testipv4addr_globalusable 255.240.0.0 | LC_ALL=C grep -q "NETWORK=172\.16\.0\.0" && return 10 |
---|
820 | # test 192.168.0.0/16 (RFC 1918 / private) |
---|
821 | /bin/ipcalc --network $testipv4addr_globalusable 255.255.0.0 | LC_ALL=C grep -q "NETWORK=192\.168\.0\.0" && return 10 |
---|
822 | # test 224.0.0.0/3 (multicast and reserved, broadcast) |
---|
823 | /bin/ipcalc --network $testipv4addr_globalusable 224.0.0.0 | LC_ALL=C grep -q "NETWORK=224\.0\.0\.0" && return 10 |
---|
824 | |
---|
825 | return 0 |
---|
826 | } |
---|
827 | |
---|
828 | |
---|
829 | ## Test a given device for status |
---|
830 | # $1: <Interface> |
---|
831 | # return code: 0=ok 1=argument error 10=not exists 11=down |
---|
832 | ipv6_test_device_status() { |
---|
833 | local fn="ipv6_test_device_status" |
---|
834 | |
---|
835 | local device=$1 |
---|
836 | |
---|
837 | if [ -z "$device" ]; then |
---|
838 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
839 | return 1 |
---|
840 | fi |
---|
841 | |
---|
842 | # Test if device exists |
---|
843 | if [ ! -d "/sys/class/net/${device}" ]; then |
---|
844 | # not exists |
---|
845 | return 10 |
---|
846 | fi |
---|
847 | |
---|
848 | # Test if device is up |
---|
849 | if ipv6_exec_ip link show dev $device 2>/dev/null | LC_ALL=C grep -q "UP"; then |
---|
850 | # up |
---|
851 | return 0 |
---|
852 | else |
---|
853 | # down |
---|
854 | return 11 |
---|
855 | fi |
---|
856 | } |
---|
857 | |
---|
858 | |
---|
859 | ## Create 6to4 prefix |
---|
860 | # $1: <IPv4 address> |
---|
861 | # stdout: <6to4address> |
---|
862 | # return code: 0=ok 1=argument error |
---|
863 | ipv6_create_6to4_prefix() { |
---|
864 | local fn="ipv6_create_6to4_prefix" |
---|
865 | |
---|
866 | local ipv4addr=$1 |
---|
867 | |
---|
868 | if [ -z "$ipv4addr" ]; then |
---|
869 | ipv6_log $"Missing parameter 'IPv4 address' (arg 1)" stderr.err $fn |
---|
870 | fi |
---|
871 | |
---|
872 | local major1="`echo $ipv4addr | awk -F. '{ print $1 }'`" |
---|
873 | local minor1="`echo $ipv4addr | awk -F. '{ print $2 }'`" |
---|
874 | local major2="`echo $ipv4addr | awk -F. '{ print $3 }'`" |
---|
875 | local minor2="`echo $ipv4addr | awk -F. '{ print $4 }'`" |
---|
876 | |
---|
877 | if [ -z "$major1" -o -z "$minor1" -o -z "$major2" -o -z "$minor2" ]; then |
---|
878 | return 1 |
---|
879 | fi |
---|
880 | |
---|
881 | if [ $major1 -eq 0 ]; then |
---|
882 | local block1="`printf "%x" $minor1`" |
---|
883 | else |
---|
884 | local block1="`printf "%x%02x" $major1 $minor1`" |
---|
885 | fi |
---|
886 | if [ $major2 -eq 0 ]; then |
---|
887 | local block2="`printf "%x" $minor2`" |
---|
888 | else |
---|
889 | local block2="`printf "%x%02x" $major2 $minor2`" |
---|
890 | fi |
---|
891 | |
---|
892 | local prefix6to4="2002:$block1:$block2" |
---|
893 | |
---|
894 | echo "$prefix6to4" |
---|
895 | return 0 |
---|
896 | } |
---|
897 | |
---|
898 | |
---|
899 | ## Check and create 6to4 tunnel relay address |
---|
900 | # $1: <IPv4 address|IPv6to4 address> |
---|
901 | # stdout: <tunnel relay address> |
---|
902 | # return code: 0=ok 1=argument error |
---|
903 | ipv6_create_6to4_relay_address() { |
---|
904 | local fn="ipv6_create_6to4_relay_address" |
---|
905 | |
---|
906 | local addr=$1 |
---|
907 | |
---|
908 | if [ -z "$addr" ]; then |
---|
909 | ipv6_log $"Missing parameter 'address' (arg 1)" stderr.err $fn |
---|
910 | return 1 |
---|
911 | fi |
---|
912 | |
---|
913 | # Check |
---|
914 | if ipv6_test_ipv4_addr_valid $addr quiet; then |
---|
915 | # ok, a IPv4 one |
---|
916 | if ipv6_test_ipv4_addr_global_usable $addr; then |
---|
917 | # IPv4 globally usable |
---|
918 | local ipv6to4_relay="::$addr" |
---|
919 | else |
---|
920 | ipv6_log $"Given address '$addr' is not a global IPv4 one (arg 1)" stderr.err $fn |
---|
921 | return 1 |
---|
922 | fi |
---|
923 | else |
---|
924 | ipv6_log $"Given address '$addr' is not a valid IPv4 one (arg 1)" stderr.err $fn |
---|
925 | return 1 |
---|
926 | fi |
---|
927 | |
---|
928 | echo "$ipv6to4_relay" |
---|
929 | |
---|
930 | return 0 |
---|
931 | } |
---|
932 | |
---|
933 | |
---|
934 | ##### 6to4 tunneling setup |
---|
935 | |
---|
936 | ## Configure 6to4 tunneling up |
---|
937 | # $1: <Interface> : only "tun6to4" is supported |
---|
938 | # $2: <IPv4 address> : global IPv4 address of interface (will be used to generate 6to4 prefix) |
---|
939 | # $3: [<IPv6 suffix>] : for 6to4 prefix (optional, default is "::1") |
---|
940 | # $4: [<MTU>] : MTU of tunnel device (optional, default is automatic) |
---|
941 | # $5: [<IPv4 address>] : local IPv4 address of tunnel interface (required in case of 6to4 behind NAT) |
---|
942 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
943 | ipv6_add_6to4_tunnel() { |
---|
944 | local fn="ipv6_add_6to4_tunnel" |
---|
945 | |
---|
946 | local device=$1 |
---|
947 | local globalipv4=$2 |
---|
948 | local globalipv6to4suffix=$3 |
---|
949 | local mtu=$4 |
---|
950 | local localipv4=$5 |
---|
951 | |
---|
952 | if [ -z "$device" ]; then |
---|
953 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
954 | return 1 |
---|
955 | fi |
---|
956 | |
---|
957 | if [ -z "$globalipv4" ]; then |
---|
958 | ipv6_log $"Missing parameter 'global IPv4 address' (arg 2)" err $fn |
---|
959 | return 1 |
---|
960 | fi |
---|
961 | |
---|
962 | # Check device |
---|
963 | if [ "$device" != "tun6to4" ]; then |
---|
964 | ipv6_log $"Given device '$device' is not supported (arg 1)" err $fn |
---|
965 | return 1 |
---|
966 | fi |
---|
967 | |
---|
968 | # Copy global IPv4 address to local if last one is not given |
---|
969 | if [ -z "$localipv4" ]; then |
---|
970 | localipv4="$globalipv4" |
---|
971 | fi |
---|
972 | |
---|
973 | ipv6_test || return 2 |
---|
974 | |
---|
975 | # Generate 6to4 address |
---|
976 | local prefix6to4="`ipv6_create_6to4_prefix $globalipv4`" |
---|
977 | if [ $? -ne 0 -o -z "$prefix6to4" ]; then |
---|
978 | return 3 |
---|
979 | fi |
---|
980 | |
---|
981 | if [ -z "$globalipv6to4suffix" ]; then |
---|
982 | local address6to4="${prefix6to4}::1/16" |
---|
983 | else |
---|
984 | local address6to4="${prefix6to4}::${globalipv6to4suffix}/16" |
---|
985 | fi |
---|
986 | |
---|
987 | ipv6_add_tunnel_device tun6to4 0.0.0.0 $address6to4 $localipv4 |
---|
988 | if [ $? -ne 0 ]; then |
---|
989 | local retval=3 |
---|
990 | else |
---|
991 | local retval=0 |
---|
992 | fi |
---|
993 | |
---|
994 | # Add unspecific unreachable route for local 6to4 address space |
---|
995 | ipv6_exec_ip route add unreach ${prefix6to4}::/48 |
---|
996 | |
---|
997 | # Set MTU, if given |
---|
998 | if [ -n "$mtu" ]; then |
---|
999 | ipv6_set_mtu $device $mtu |
---|
1000 | fi |
---|
1001 | |
---|
1002 | return $retval |
---|
1003 | } |
---|
1004 | |
---|
1005 | |
---|
1006 | ## Configure all 6to4 tunneling down |
---|
1007 | # $1: <Interface> : only "tun6to4" is supported |
---|
1008 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
1009 | ipv6_cleanup_6to4_tunnels() { |
---|
1010 | local fn="ipv6_cleanup_6to4_tunnels" |
---|
1011 | |
---|
1012 | local device=$1 |
---|
1013 | |
---|
1014 | if [ -z "$device" ]; then |
---|
1015 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
1016 | return 1 |
---|
1017 | fi |
---|
1018 | |
---|
1019 | # Check device |
---|
1020 | if [ "$device" != "tun6to4" ]; then |
---|
1021 | ipv6_log $"Given device '$device' is not supported (arg 1)" err $fn |
---|
1022 | return 1 |
---|
1023 | fi |
---|
1024 | |
---|
1025 | ipv6_test testonly || return 2 |
---|
1026 | |
---|
1027 | ipv6_del_tunnel_device tun6to4 |
---|
1028 | |
---|
1029 | # Remove all unspecific unreachable routes for local 6to4 address space |
---|
1030 | ipv6_exec_ip -6 route | LC_ALL=C grep "^unreachable 2002:" | LC_ALL=C grep "/48 dev lo" | while read token net rest; do |
---|
1031 | ipv6_exec_ip route del unreach $net |
---|
1032 | done |
---|
1033 | |
---|
1034 | return 0 |
---|
1035 | } |
---|
1036 | |
---|
1037 | |
---|
1038 | ## Configure 6to4 tunneling down |
---|
1039 | # $1: <Interface> : only "tun6to4" is supported |
---|
1040 | # $2: <IPv4 address> : global address of local interface |
---|
1041 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
1042 | ipv6_del_6to4_tunnel() { |
---|
1043 | local fn="ipv6_del_6to4_tunnel" |
---|
1044 | |
---|
1045 | local device=$1 |
---|
1046 | local localipv4=$2 |
---|
1047 | |
---|
1048 | if [ -z "$device" ]; then |
---|
1049 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
1050 | return 1 |
---|
1051 | fi |
---|
1052 | |
---|
1053 | if [ -z "$localipv4" ]; then |
---|
1054 | ipv6_log $"Missing parameter 'local IPv4 address' (arg 2)" err $fn |
---|
1055 | return 1 |
---|
1056 | fi |
---|
1057 | |
---|
1058 | # Check device |
---|
1059 | if [ "$device" != "tun6to4" ]; then |
---|
1060 | ipv6_log $"Given device '$device' is not supported (arg 1)" err $fn |
---|
1061 | return 1 |
---|
1062 | fi |
---|
1063 | |
---|
1064 | ipv6_test || return 2 |
---|
1065 | |
---|
1066 | ipv6_del_tunnel_device tun6to4 |
---|
1067 | local retval=$? |
---|
1068 | |
---|
1069 | # Remove unspecific unreachable route for local 6to4 address space |
---|
1070 | ipv6_exec_ip route del unreach ${prefix6to4}::/48 |
---|
1071 | |
---|
1072 | return $retval |
---|
1073 | } |
---|
1074 | |
---|
1075 | |
---|
1076 | ## Configure a static tunnel device up |
---|
1077 | # $1: <Interface> |
---|
1078 | # $2: <IPv4 address> : of foreign tunnel |
---|
1079 | # $3: [<IPv6 address>] : local one of a P-t-P tunnel (optional) |
---|
1080 | # $4: [<IPv4 address>] : local one of tunnel (optional) |
---|
1081 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
1082 | ipv6_add_tunnel_device() { |
---|
1083 | local fn="ipv6_add_tunnel_device" |
---|
1084 | |
---|
1085 | local device=$1 |
---|
1086 | local addressipv4tunnel=$2 |
---|
1087 | local addressipv6local=$3 |
---|
1088 | local addressipv4tunnellocal=$4 |
---|
1089 | |
---|
1090 | if [ -z "$device" ]; then |
---|
1091 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
1092 | return 1 |
---|
1093 | fi |
---|
1094 | |
---|
1095 | if [ -z "$addressipv4tunnel" ]; then |
---|
1096 | ipv6_log $"Missing parameter 'IPv4-tunnel address' (arg 2)" err $fn |
---|
1097 | return 1 |
---|
1098 | fi |
---|
1099 | |
---|
1100 | if [ -z "$addressipv4tunnellocal" ]; then |
---|
1101 | local addressipv4tunnellocal="any" |
---|
1102 | fi |
---|
1103 | |
---|
1104 | ipv6_test || return 2 |
---|
1105 | |
---|
1106 | if ! ipv6_test_device_status $device; then |
---|
1107 | local ttldefault="`ipv6_exec_sysctl net.ipv4.ip_default_ttl | awk '{ print $3 }'`" |
---|
1108 | if [ -z "$ttldefault" ]; then |
---|
1109 | local ttldefault=64 |
---|
1110 | fi |
---|
1111 | |
---|
1112 | # Test whether remote IPv4 address was already applied to another tunnel |
---|
1113 | if [ "$addressipv4tunnel" != "0.0.0.0" -a "$addressipv4tunnel" != "any" ]; then |
---|
1114 | ipv6_exec_ip tunnel show remote $addressipv4tunnel 2>/dev/null | LC_ALL=C grep -w "ipv6/ip" | while IFS=":" read devnew rest; do |
---|
1115 | if [ "$devnew" != "$device" ]; then |
---|
1116 | ipv6_log $"Given remote address '$addressipv4tunnel' on tunnel device '$device' is already configured on device '$devnew'" err $fn |
---|
1117 | return 3 |
---|
1118 | fi |
---|
1119 | done |
---|
1120 | fi |
---|
1121 | |
---|
1122 | ipv6_exec_ip tunnel add $device mode sit ttl $ttldefault remote $addressipv4tunnel local $addressipv4tunnellocal |
---|
1123 | if [ $? -ne 0 ]; then |
---|
1124 | return 3 |
---|
1125 | fi |
---|
1126 | |
---|
1127 | # Test, whether "ip tunnel show" reports valid content |
---|
1128 | if ! ipv6_exec_ip tunnel show $device 2>/dev/null | LC_ALL=C grep -q -w "remote"; then |
---|
1129 | ipv6_log $"Tunnel device '$device' creation didn't work" err $fn |
---|
1130 | return 3 |
---|
1131 | fi |
---|
1132 | |
---|
1133 | ipv6_exec_ip link set $device up |
---|
1134 | |
---|
1135 | if ! ipv6_test_device_status $device; then |
---|
1136 | ipv6_log $"Tunnel device '$device' bringing up didn't work" err $fn |
---|
1137 | return 3 |
---|
1138 | fi |
---|
1139 | |
---|
1140 | # Set sysctls proper (regardless "default") |
---|
1141 | ipv6_exec_sysctl -w net.ipv6.conf.$device.forwarding=1 >/dev/null 2>&1 |
---|
1142 | ipv6_exec_sysctl -w net.ipv6.conf.$device.accept_ra=0 >/dev/null 2>&1 |
---|
1143 | ipv6_exec_sysctl -w net.ipv6.conf.$device.accept_redirects=0 >/dev/null 2>&1 |
---|
1144 | |
---|
1145 | if [ -n "$addressipv6local" ]; then |
---|
1146 | # Setup P-t-P address |
---|
1147 | ipv6_add_addr_on_device $device $addressipv6local |
---|
1148 | if [ $? -ne 0 ]; then |
---|
1149 | return 3 |
---|
1150 | fi |
---|
1151 | fi |
---|
1152 | else |
---|
1153 | false |
---|
1154 | fi |
---|
1155 | |
---|
1156 | return 0 |
---|
1157 | } |
---|
1158 | |
---|
1159 | |
---|
1160 | ## Configure a static tunnel device down |
---|
1161 | # $1: <Interface> |
---|
1162 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
1163 | ipv6_del_tunnel_device() { |
---|
1164 | local fn="ipv6_del_tunnel_device" |
---|
1165 | |
---|
1166 | local device=$1 |
---|
1167 | |
---|
1168 | if [ -z "$device" ]; then |
---|
1169 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
1170 | return 1 |
---|
1171 | fi |
---|
1172 | |
---|
1173 | ipv6_test testonly || return 2 |
---|
1174 | |
---|
1175 | if ipv6_test_device_status $device; then |
---|
1176 | ipv6_cleanup_device $device |
---|
1177 | else |
---|
1178 | if [ "$device" != "sit0" ]; then |
---|
1179 | false |
---|
1180 | fi |
---|
1181 | fi |
---|
1182 | |
---|
1183 | if [ "$device" != "sit0" ]; then |
---|
1184 | if ipv6_exec_ip tunnel show $device 2>/dev/null | LC_ALL=C grep -q -w "ipv6/ip"; then |
---|
1185 | ipv6_exec_ip tunnel del $device |
---|
1186 | |
---|
1187 | if ipv6_test_device_status $device; then |
---|
1188 | return 3 |
---|
1189 | fi |
---|
1190 | else |
---|
1191 | false |
---|
1192 | fi |
---|
1193 | fi |
---|
1194 | |
---|
1195 | return 0 |
---|
1196 | } |
---|
1197 | |
---|
1198 | |
---|
1199 | ## Cleanup all dedicated tunnel devices |
---|
1200 | ipv6_cleanup_tunnel_devices() { |
---|
1201 | local fn="ipv6_cleanup_tunnel_devices" |
---|
1202 | |
---|
1203 | ipv6_test testonly || return 2 |
---|
1204 | |
---|
1205 | # Find still existing tunnel devices and shutdown and delete them |
---|
1206 | |
---|
1207 | ipv6_exec_ip tunnel show | LC_ALL=C grep -w "ipv6/ip" | awk -F: '{ print $1 }' | while read device; do |
---|
1208 | ipv6_del_tunnel_device $device |
---|
1209 | done |
---|
1210 | |
---|
1211 | return 0 |
---|
1212 | } |
---|
1213 | |
---|
1214 | |
---|
1215 | ## Get address of a dedicated tunnel |
---|
1216 | # $1: <Interface> |
---|
1217 | # $2: local|remote : local or remote address |
---|
1218 | # stdout: <IPv4 address> if available |
---|
1219 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
1220 | ipv6_get_ipv4addr_of_tunnel() { |
---|
1221 | local fn="ipv6_get_local_ipv4_of_tunnel" |
---|
1222 | |
---|
1223 | local device=$1 |
---|
1224 | local selection=$2 |
---|
1225 | |
---|
1226 | if [ -z "$device" ]; then |
---|
1227 | ipv6_log $"Missing parameter 'device' (arg 1)" stderr.err $fn |
---|
1228 | return 1 |
---|
1229 | fi |
---|
1230 | |
---|
1231 | if [ -z "$selection" ]; then |
---|
1232 | ipv6_log $"Missing parameter 'selection' (arg 2)" stderr.err $fn |
---|
1233 | return 1 |
---|
1234 | fi |
---|
1235 | if [ "$selection" != "local" -a "$selection" != "remote" ]; then |
---|
1236 | ipv6_log $"Unsupported selection '$selection' specified (arg 2)" stderr.err $fn |
---|
1237 | return 1 |
---|
1238 | fi |
---|
1239 | |
---|
1240 | ipv6_test testonly || return 2 |
---|
1241 | |
---|
1242 | ipv6_test_device_status $device |
---|
1243 | |
---|
1244 | if [ $? != 0 -a $? != 11 ]; then |
---|
1245 | # Device doesn't exist |
---|
1246 | return 3 |
---|
1247 | fi |
---|
1248 | |
---|
1249 | # Device exists, retrieve address |
---|
1250 | if [ "$selection" = "local" ]; then |
---|
1251 | local tunnel_local_ipv4addr="`ipv6_exec_ip tunnel show $device | awk '{ print $6 }'`" |
---|
1252 | elif [ "$selection" = "remote" ]; then |
---|
1253 | local tunnel_local_ipv4addr="`ipv6_exec_ip tunnel show $device | awk '{ print $4 }'`" |
---|
1254 | fi |
---|
1255 | |
---|
1256 | if [ $? != 0 ]; then |
---|
1257 | return 3 |
---|
1258 | fi |
---|
1259 | |
---|
1260 | if [ "$tunnel_local_ipv4addr" = "any" ]; then |
---|
1261 | local tunnel_local_ipv4addr="0.0.0.0" |
---|
1262 | fi |
---|
1263 | |
---|
1264 | echo "$tunnel_local_ipv4addr" |
---|
1265 | |
---|
1266 | return 0 |
---|
1267 | } |
---|
1268 | |
---|
1269 | |
---|
1270 | ## Get IPv4 address of a device |
---|
1271 | # $1: <Interface> |
---|
1272 | # stdout: <IPv4 address> if available |
---|
1273 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem (more than one IPv4 address applied) |
---|
1274 | ipv6_get_ipv4addr_of_device() { |
---|
1275 | local fn="ipv6_get_ipv4addr_of_device" |
---|
1276 | |
---|
1277 | local device=$1 |
---|
1278 | |
---|
1279 | if [ -z "$device" ]; then |
---|
1280 | ipv6_log $"Missing parameter 'device' (arg 1)" stderr.err $fn |
---|
1281 | return 1 |
---|
1282 | fi |
---|
1283 | |
---|
1284 | ipv6_test_device_status $device |
---|
1285 | |
---|
1286 | if [ $? != 0 -a $? != 11 ]; then |
---|
1287 | # Device doesn't exist |
---|
1288 | return 3 |
---|
1289 | fi |
---|
1290 | |
---|
1291 | # Device exists, retrieve the first address only |
---|
1292 | local ipv4addr="`ipv6_exec_ip -o -4 addr show dev $device | awk '{ print $4 }' | awk -F/ '{ print $1; exit }'`" |
---|
1293 | |
---|
1294 | if [ $? != 0 ]; then |
---|
1295 | return 3 |
---|
1296 | fi |
---|
1297 | |
---|
1298 | if [ "$ipv4addr" = "any" ]; then |
---|
1299 | local ipv4addr="0.0.0.0" |
---|
1300 | fi |
---|
1301 | |
---|
1302 | echo "$ipv4addr" |
---|
1303 | |
---|
1304 | return 0 |
---|
1305 | } |
---|
1306 | |
---|
1307 | |
---|
1308 | ## Set IPv6 MTU for a device |
---|
1309 | # $1: <Interface> |
---|
1310 | # $2: <IPv6 MTU> |
---|
1311 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
1312 | ipv6_set_mtu() { |
---|
1313 | local fn="ipv6_set_mtu" |
---|
1314 | |
---|
1315 | local device=$1 |
---|
1316 | local ipv6_mtu=$2 |
---|
1317 | |
---|
1318 | if [ -z "$device" ]; then |
---|
1319 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
1320 | return 1 |
---|
1321 | fi |
---|
1322 | |
---|
1323 | if [ -z "$ipv6_mtu" ]; then |
---|
1324 | ipv6_log $"Missing parameter 'IPv6 MTU' (arg 2)" err $fn |
---|
1325 | return 1 |
---|
1326 | fi |
---|
1327 | |
---|
1328 | # Check range |
---|
1329 | if [ $ipv6_mtu -lt 1280 -o $ipv6_mtu -gt 65535 ]; then |
---|
1330 | ipv6_log $"Given IPv6 MTU '$ipv6_mtu' is out of range" err $fn |
---|
1331 | return 1 |
---|
1332 | fi |
---|
1333 | |
---|
1334 | ipv6_test testonly || return 2 |
---|
1335 | |
---|
1336 | # Check whether key exists |
---|
1337 | ipv6_exec_sysctl net.ipv6.conf.$device.mtu >/dev/null 2>&1 |
---|
1338 | if [ $? -ne 0 ]; then |
---|
1339 | return 3 |
---|
1340 | fi |
---|
1341 | |
---|
1342 | # Set value |
---|
1343 | ipv6_exec_sysctl -w net.ipv6.conf.$device.mtu=$ipv6_mtu >/dev/null 2>&1 |
---|
1344 | |
---|
1345 | return 0 |
---|
1346 | } |
---|
1347 | |
---|
1348 | |
---|
1349 | ## Set a default route |
---|
1350 | # $1: <IPv6 address> : gateway, can also contain scope suffix (device name), cause a warning if not matching with $2 (but will have precedence) |
---|
1351 | # $2: <gateway device>: gateway device (optional in case of $1 is a global address or $1 contains scope suffix) |
---|
1352 | # $3: <check device>: (optional) device to check scope and gateway device against (setup is skipped, if not matching) |
---|
1353 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
1354 | ipv6_set_default_route() { |
---|
1355 | local fn="ipv6_set_default_route" |
---|
1356 | |
---|
1357 | local address=$1 |
---|
1358 | local device=$2 |
---|
1359 | local device_check=$3 |
---|
1360 | |
---|
1361 | ipv6_test testonly || return 2 |
---|
1362 | |
---|
1363 | # Map the unspecified address to nothing |
---|
1364 | if [ "$address" = "::" ]; then |
---|
1365 | local address="" |
---|
1366 | fi |
---|
1367 | |
---|
1368 | if [ -n "$address" ]; then |
---|
1369 | local addressgw=`echo $address | awk -F% '{ print $1 }'` |
---|
1370 | local device_scope=`echo $address | awk -F% '{ print $2 }'` |
---|
1371 | |
---|
1372 | if [ -z "$addressgw" ]; then |
---|
1373 | ipv6_log $"Given IPv6 default gateway '$address' is not in proper format" err $fn |
---|
1374 | return 3 |
---|
1375 | fi |
---|
1376 | |
---|
1377 | # Scope device has precedence |
---|
1378 | if [ -n "$device_scope" -a -n "$device" -a "$device_scope" != "$device" ]; then |
---|
1379 | ipv6_log $"Given IPv6 default gateway '$address' has scope '$device_scope' defined, given default gateway device '$device' will be not used" inf $fn |
---|
1380 | local device="" |
---|
1381 | fi |
---|
1382 | |
---|
1383 | # Link local addresses require a device |
---|
1384 | if echo $addressgw | LC_ALL=C grep -qi "^fe80:"; then |
---|
1385 | if [ -z "$device_scope" ]; then |
---|
1386 | if [ -z "$device" ]; then |
---|
1387 | ipv6_log $"Given IPv6 default gateway '$address' is link-local, but no scope or gateway device is specified" err $fn |
---|
1388 | return 3 |
---|
1389 | fi |
---|
1390 | fi |
---|
1391 | fi |
---|
1392 | |
---|
1393 | # Check whether the route belongs to the specific given interface |
---|
1394 | if [ -n "$device_check" ]; then |
---|
1395 | # Check whether scope device matches given check device |
---|
1396 | if [ -n "$device_scope" -a "$device_check" != "$device_scope" ]; then |
---|
1397 | # scope device != specific given -> skip |
---|
1398 | return 0 |
---|
1399 | elif [ -n "$device" -a "$device_check" != "$device" ]; then |
---|
1400 | # gateway device != specific given -> skip |
---|
1401 | return 0 |
---|
1402 | fi |
---|
1403 | fi |
---|
1404 | |
---|
1405 | # Set device now, if not given |
---|
1406 | if [ -z "$device" ]; then |
---|
1407 | local device="$device_scope" |
---|
1408 | fi |
---|
1409 | |
---|
1410 | if [ -z "$device" ]; then |
---|
1411 | # Note: this can cause a warning and a not installed route, if given address is not reachable on the link |
---|
1412 | ipv6_add_route ::/0 $addressgw |
---|
1413 | else |
---|
1414 | ipv6_add_route ::/0 $addressgw $device |
---|
1415 | fi |
---|
1416 | elif [ -n "$device" ]; then |
---|
1417 | # Check whether the route belongs to the specific given interface |
---|
1418 | if [ -n "$device_check" -a "$device_check" != "$device" ]; then |
---|
1419 | # gateway device != specific given -> skip |
---|
1420 | return 0 |
---|
1421 | fi |
---|
1422 | |
---|
1423 | ipv6_test_route_requires_next_hop $device |
---|
1424 | local result=$? |
---|
1425 | |
---|
1426 | if [ $result = 0 ]; then |
---|
1427 | ipv6_log $"Given IPv6 default device '$device' requires an explicit nexthop" err $fn |
---|
1428 | return 3 |
---|
1429 | elif [ $result != 10 ]; then |
---|
1430 | ipv6_log $"Given IPv6 default device '$device' doesn't exist or isn't up" err $fn |
---|
1431 | return 3 |
---|
1432 | fi |
---|
1433 | |
---|
1434 | ipv6_add_route ::/0 :: $device |
---|
1435 | else |
---|
1436 | ipv6_log $"No parameters given to setup a default route" err $fn |
---|
1437 | return 3 |
---|
1438 | fi |
---|
1439 | |
---|
1440 | return 0 |
---|
1441 | } |
---|
1442 | |
---|
1443 | |
---|
1444 | ## Resolve need of explicit next hop for an interface |
---|
1445 | # $1: <Interface> |
---|
1446 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem 10=needs no explicit hop |
---|
1447 | ipv6_test_route_requires_next_hop() { |
---|
1448 | local fn="ipv6_test_route_requires_next_hop" |
---|
1449 | |
---|
1450 | local device=$1 |
---|
1451 | |
---|
1452 | if [ -z "$device" ]; then |
---|
1453 | ipv6_log $"Missing parameter 'device' (arg 1)" err $fn |
---|
1454 | return 1 |
---|
1455 | fi |
---|
1456 | |
---|
1457 | ipv6_test testonly || return 2 |
---|
1458 | |
---|
1459 | ipv6_test_device_status $device |
---|
1460 | |
---|
1461 | if [ $? != 0 ]; then |
---|
1462 | return 3 |
---|
1463 | fi |
---|
1464 | |
---|
1465 | if [ "$device" = "sit0" ]; then |
---|
1466 | return 10 |
---|
1467 | fi |
---|
1468 | |
---|
1469 | if ipv6_exec_ip -o link show $device 2>/dev/null | LC_ALL=C grep -q "POINTOPOINT"; then |
---|
1470 | return 10 |
---|
1471 | fi |
---|
1472 | |
---|
1473 | return 0 |
---|
1474 | } |
---|
1475 | |
---|
1476 | |
---|
1477 | ## Trigger radvd |
---|
1478 | # $1: up|down : device reason for triggering (coming up or going down) |
---|
1479 | # $2: [startstop|restart|reload|SIGHUP] : triger mechanism (default is "SIGHUP") |
---|
1480 | # "startstop" : reason=up -> start, reason=down -> stop |
---|
1481 | # $3: [<filename>] : alternative pid file [optional] |
---|
1482 | # return code: 0=ok 1=argument error 2=IPv6 test fails 3=major problem |
---|
1483 | ipv6_trigger_radvd() { |
---|
1484 | local fn="ipv6_trigger_radvd" |
---|
1485 | |
---|
1486 | local reason=$1 |
---|
1487 | local mechanism=$2 |
---|
1488 | local pidfile=$3 |
---|
1489 | |
---|
1490 | if [ -z "$reason" ]; then |
---|
1491 | ipv6_log $"No reason given for sending trigger to radvd" err $fn |
---|
1492 | return 1 |
---|
1493 | fi |
---|
1494 | |
---|
1495 | if [ "$reason" != "up" -a "$reason" != "down" ]; then |
---|
1496 | ipv6_log $"Unsupported reason '$reason' for sending trigger to radvd" err $fn |
---|
1497 | return 1 |
---|
1498 | fi |
---|
1499 | |
---|
1500 | if [ -z "$mechanism" ]; then |
---|
1501 | # Take default |
---|
1502 | local mechanism="SIGHUP" |
---|
1503 | fi |
---|
1504 | |
---|
1505 | if [ -z "$pidfile" ]; then |
---|
1506 | local pidfile="/var/run/radvd/radvd.pid" |
---|
1507 | fi |
---|
1508 | |
---|
1509 | # Print message and select action |
---|
1510 | case $mechanism in |
---|
1511 | 'startstop') |
---|
1512 | case $reason in |
---|
1513 | up) |
---|
1514 | local action="start" |
---|
1515 | ;; |
---|
1516 | down) |
---|
1517 | local action="stop" |
---|
1518 | ;; |
---|
1519 | esac |
---|
1520 | ;; |
---|
1521 | 'reload'|'restart'|'SIGHUP') |
---|
1522 | local action="$mechanism" |
---|
1523 | ;; |
---|
1524 | *) |
---|
1525 | ipv6_log $"Unsupported mechanism '$mechanism' for sending trigger to radvd" err $fn |
---|
1526 | return 3 |
---|
1527 | ;; |
---|
1528 | esac |
---|
1529 | |
---|
1530 | # PID file needed? |
---|
1531 | if [ "$action" = "SIGHUP" ]; then |
---|
1532 | if ! [ -f "$pidfile" ]; then |
---|
1533 | if [ "$reason" = "down" ]; then |
---|
1534 | # be quiet because triggering may have been disabled |
---|
1535 | true |
---|
1536 | else |
---|
1537 | ipv6_log $"Given pidfile '$pidfile' doesn't exist, cannot send trigger to radvd" err $fn |
---|
1538 | fi |
---|
1539 | return 3 |
---|
1540 | fi |
---|
1541 | |
---|
1542 | # Get PID |
---|
1543 | local pid="`cat $pidfile`" |
---|
1544 | if [ -z "$pid" ]; then |
---|
1545 | # pidfile empty - strange |
---|
1546 | ipv6_log $"Pidfile '$pidfile' is empty, cannot send trigger to radvd" err $fn |
---|
1547 | return 3 |
---|
1548 | fi |
---|
1549 | fi |
---|
1550 | |
---|
1551 | |
---|
1552 | # Do action |
---|
1553 | case $action in |
---|
1554 | 'SIGHUP') |
---|
1555 | kill -HUP $pid |
---|
1556 | ;; |
---|
1557 | 'reload'|'restart'|'stop'|'start') |
---|
1558 | if ! /sbin/chkconfig --list radvd >/dev/null 2>&1; then |
---|
1559 | if [ "$reason" = "down" ]; then |
---|
1560 | # be quiet because triggering may have been disabled |
---|
1561 | true |
---|
1562 | else |
---|
1563 | ipv6_log $"radvd not (properly) installed, triggering failed" err $fn |
---|
1564 | fi |
---|
1565 | return 3 |
---|
1566 | else |
---|
1567 | /sbin/service radvd $action >/dev/null 2>&1 |
---|
1568 | fi |
---|
1569 | ;; |
---|
1570 | *) |
---|
1571 | # Normally not reached, "action" is set above to proper value |
---|
1572 | ;; |
---|
1573 | esac |
---|
1574 | |
---|
1575 | return 0 |
---|
1576 | } |
---|