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1 | #!/bin/sh | |
2 | # Begin $rc_base/init.d/unbound | |
3 | ||
4 | # Description : Unbound DNS resolver boot script for IPfire | |
5 | # Author : Marcel Lorenz <marcel.lorenz@ipfire.org> | |
6 | ||
7 | . /etc/sysconfig/rc | |
8 | . ${rc_functions} | |
9 | ||
10 | TEST_DOMAIN="ipfire.org" | |
11 | ||
12 | # This domain will never validate | |
13 | TEST_DOMAIN_FAIL="dnssec-failed.org" | |
14 | ||
15 | INSECURE_ZONES= | |
16 | USE_FORWARDERS=1 | |
17 | ENABLE_SAFE_SEARCH=off | |
18 | ||
19 | # Cache any local zones for 60 seconds | |
20 | LOCAL_TTL=60 | |
21 | ||
22 | # EDNS buffer size | |
23 | EDNS_DEFAULT_BUFFER_SIZE=4096 | |
24 | ||
25 | # Load optional configuration | |
26 | [ -e "/etc/sysconfig/unbound" ] && . /etc/sysconfig/unbound | |
27 | ||
28 | ip_address_revptr() { | |
29 | local addr=${1} | |
30 | ||
31 | local a1 a2 a3 a4 | |
32 | IFS=. read -r a1 a2 a3 a4 <<< ${addr} | |
33 | ||
34 | echo "${a4}.${a3}.${a2}.${a1}.in-addr.arpa" | |
35 | } | |
36 | ||
37 | read_name_servers() { | |
38 | local i | |
39 | for i in 1 2; do | |
40 | echo "$(</var/ipfire/red/dns${i})" | |
41 | done 2>/dev/null | xargs echo | |
42 | } | |
43 | ||
44 | config_header() { | |
45 | echo "# This file is automatically generated and any changes" | |
46 | echo "# will be overwritten. DO NOT EDIT!" | |
47 | echo | |
48 | } | |
49 | ||
50 | update_forwarders() { | |
51 | if [ "${USE_FORWARDERS}" = "1" -a -e "/var/ipfire/red/iface" -a "$(</sys/class/net/$(</var/ipfire/red/iface)/carrier)" = "1" ]; then | |
52 | local forwarders | |
53 | local broken_forwarders | |
54 | ||
55 | local ns | |
56 | for ns in $(read_name_servers); do | |
57 | test_name_server ${ns} &>/dev/null | |
58 | case "$?" in | |
59 | # Only use DNSSEC-validating or DNSSEC-aware name servers | |
60 | 0|2) | |
61 | forwarders="${forwarders} ${ns}" | |
62 | ;; | |
63 | *) | |
64 | broken_forwarders="${broken_forwarders} ${ns}" | |
65 | ;; | |
66 | esac | |
67 | done | |
68 | ||
69 | # Determine EDNS buffer size | |
70 | local new_edns_buffer_size=${EDNS_DEFAULT_BUFFER_SIZE} | |
71 | ||
72 | for ns in ${forwarders}; do | |
73 | local edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) | |
74 | if [ -n "${edns_buffer_size}" ]; then | |
75 | if [ ${edns_buffer_size} -lt ${new_edns_buffer_size} ]; then | |
76 | new_edns_buffer_size=${edns_buffer_size} | |
77 | fi | |
78 | fi | |
79 | done | |
80 | ||
81 | if [ ${new_edns_buffer_size} -lt ${EDNS_DEFAULT_BUFFER_SIZE} ]; then | |
82 | boot_mesg "EDNS buffer size reduced to ${new_edns_buffer_size}" ${WARNING} | |
83 | echo_warning | |
84 | ||
85 | unbound-control -q set_option edns-buffer-size: ${new_edns_buffer_size} | |
86 | fi | |
87 | ||
88 | # Show warning for any broken upstream name servers | |
89 | if [ -n "${broken_forwarders}" ]; then | |
90 | boot_mesg "Ignoring broken upstream name server(s): ${broken_forwarders:1}" ${WARNING} | |
91 | echo_warning | |
92 | fi | |
93 | ||
94 | if [ -n "${forwarders}" ]; then | |
95 | boot_mesg "Configuring upstream name server(s): ${forwarders:1}" ${INFO} | |
96 | echo_ok | |
97 | ||
98 | # Make sure DNSSEC is activated | |
99 | enable_dnssec | |
100 | ||
101 | echo "${forwarders}" > /var/ipfire/red/dns | |
102 | unbound-control -q forward ${forwarders} | |
103 | return 0 | |
104 | ||
105 | # In case we have found no working forwarders | |
106 | else | |
107 | # Test if the recursor mode is available | |
108 | if can_resolve_root +bufsize=${new_edns_buffer_size}; then | |
109 | # Make sure DNSSEC is activated | |
110 | enable_dnssec | |
111 | ||
112 | boot_mesg "Falling back to recursor mode" ${WARNING} | |
113 | echo_warning | |
114 | ||
115 | # If not, we set DNSSEC in permissive mode and allow using all recursors | |
116 | elif [ -n "${broken_forwarders}" ]; then | |
117 | disable_dnssec | |
118 | ||
119 | boot_mesg "DNSSEC has been set to permissive mode" ${FAILURE} | |
120 | echo_failure | |
121 | ||
122 | echo "${broken_forwarders}" > /var/ipfire/red/dns | |
123 | unbound-control -q forward ${broken_forwarders} | |
124 | return 0 | |
125 | fi | |
126 | fi | |
127 | fi | |
128 | ||
129 | # If forwarders cannot be used we run in recursor mode | |
130 | echo "local recursor" > /var/ipfire/red/dns | |
131 | unbound-control -q forward off | |
132 | } | |
133 | ||
134 | own_hostname() { | |
135 | local hostname=$(hostname -f) | |
136 | # 1.1.1.1 is reserved for unused green, skip this | |
137 | if [ -n "${GREEN_ADDRESS}" -a "${GREEN_ADDRESS}" != "1.1.1.1" ]; then | |
138 | unbound-control -q local_data "${hostname} ${LOCAL_TTL} IN A ${GREEN_ADDRESS}" | |
139 | fi | |
140 | ||
141 | local address | |
142 | for address in ${GREEN_ADDRESS} ${BLUE_ADDRESS} ${ORANGE_ADDRESS}; do | |
143 | [ -n "${address}" ] || continue | |
144 | [ "${address}" = "1.1.1.1" ] && continue | |
145 | ||
146 | address=$(ip_address_revptr ${address}) | |
147 | unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${hostname}" | |
148 | done | |
149 | } | |
150 | ||
151 | update_hosts() { | |
152 | local enabled address hostname domainname generateptr | |
153 | ||
154 | while IFS="," read -r enabled address hostname domainname generateptr; do | |
155 | [ "${enabled}" = "on" ] || continue | |
156 | ||
157 | # Build FQDN | |
158 | local fqdn="${hostname}.${domainname}" | |
159 | ||
160 | unbound-control -q local_data "${fqdn} ${LOCAL_TTL} IN A ${address}" | |
161 | ||
162 | # Skip reverse resolution if the address equals the GREEN address | |
163 | [ "${address}" = "${GREEN_ADDRESS}" ] && continue | |
164 | ||
165 | # Skip reverse resolution if user requested not to do so | |
166 | [ "${generateptr}" = "off" ] && continue | |
167 | ||
168 | # Add RDNS | |
169 | address=$(ip_address_revptr ${address}) | |
170 | unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${fqdn}" | |
171 | done < /var/ipfire/main/hosts | |
172 | } | |
173 | ||
174 | write_forward_conf() { | |
175 | ( | |
176 | config_header | |
177 | ||
178 | local insecure_zones="${INSECURE_ZONES}" | |
179 | ||
180 | local enabled zone server servers remark disable_dnssec rest | |
181 | while IFS="," read -r enabled zone servers remark disable_dnssec rest; do | |
182 | # Line must be enabled. | |
183 | [ "${enabled}" = "on" ] || continue | |
184 | ||
185 | # Zones that end with .local are commonly used for internal | |
186 | # zones and therefore not signed | |
187 | case "${zone}" in | |
188 | *.local) | |
189 | insecure_zones="${insecure_zones} ${zone}" | |
190 | ;; | |
191 | *) | |
192 | if [ "${disable_dnssec}" = "on" ]; then | |
193 | insecure_zones="${insecure_zones} ${zone}" | |
194 | fi | |
195 | ;; | |
196 | esac | |
197 | ||
198 | # Reverse-lookup zones must be stubs | |
199 | case "${zone}" in | |
200 | *.in-addr.arpa) | |
201 | echo "stub-zone:" | |
202 | echo " name: ${zone}" | |
203 | for server in ${servers//|/ }; do | |
204 | if [[ ${server} =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then | |
205 | echo " stub-addr: ${server}" | |
206 | else | |
207 | echo " stub-host: ${server}" | |
208 | fi | |
209 | done | |
210 | echo | |
211 | echo "server:" | |
212 | echo " local-zone: \"${zone}\" transparent" | |
213 | echo | |
214 | ;; | |
215 | *) | |
216 | echo "forward-zone:" | |
217 | echo " name: ${zone}" | |
218 | for server in ${servers//|/ }; do | |
219 | if [[ ${server} =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then | |
220 | echo " forward-addr: ${server}" | |
221 | else | |
222 | echo " forward-host: ${server}" | |
223 | fi | |
224 | done | |
225 | echo | |
226 | ;; | |
227 | esac | |
228 | done < /var/ipfire/dnsforward/config | |
229 | ||
230 | if [ -n "${insecure_zones}" ]; then | |
231 | echo "server:" | |
232 | ||
233 | for zone in ${insecure_zones}; do | |
234 | echo " domain-insecure: ${zone}" | |
235 | done | |
236 | fi | |
237 | ) > /etc/unbound/forward.conf | |
238 | } | |
239 | ||
240 | write_tuning_conf() { | |
241 | # https://www.unbound.net/documentation/howto_optimise.html | |
242 | ||
243 | # Determine number of online processors | |
244 | local processors=$(getconf _NPROCESSORS_ONLN) | |
245 | ||
246 | # Determine number of slabs | |
247 | local slabs=1 | |
248 | while [ ${slabs} -lt ${processors} ]; do | |
249 | slabs=$(( ${slabs} * 2 )) | |
250 | done | |
251 | ||
252 | # Determine amount of system memory | |
253 | local mem=$(get_memory_amount) | |
254 | ||
255 | # In the worst case scenario, unbound can use double the | |
256 | # amount of memory allocated to a cache due to malloc overhead | |
257 | ||
258 | # Even larger systems with more than 8GB of RAM | |
259 | if [ ${mem} -ge 8192 ]; then | |
260 | mem=1024 | |
261 | ||
262 | # Extra large systems with more than 4GB of RAM | |
263 | elif [ ${mem} -ge 4096 ]; then | |
264 | mem=512 | |
265 | ||
266 | # Large systems with more than 2GB of RAM | |
267 | elif [ ${mem} -ge 2048 ]; then | |
268 | mem=256 | |
269 | ||
270 | # Medium systems with more than 1GB of RAM | |
271 | elif [ ${mem} -ge 1024 ]; then | |
272 | mem=128 | |
273 | ||
274 | # Small systems with less than 256MB of RAM | |
275 | elif [ ${mem} -le 256 ]; then | |
276 | mem=16 | |
277 | ||
278 | # Everything else | |
279 | else | |
280 | mem=64 | |
281 | fi | |
282 | ||
283 | ( | |
284 | config_header | |
285 | ||
286 | # We run one thread per processor | |
287 | echo "num-threads: ${processors}" | |
288 | echo "so-reuseport: yes" | |
289 | ||
290 | # Adjust number of slabs | |
291 | echo "infra-cache-slabs: ${slabs}" | |
292 | echo "key-cache-slabs: ${slabs}" | |
293 | echo "msg-cache-slabs: ${slabs}" | |
294 | echo "rrset-cache-slabs: ${slabs}" | |
295 | ||
296 | # Slice up the cache | |
297 | echo "rrset-cache-size: $(( ${mem} / 2 ))m" | |
298 | echo "msg-cache-size: $(( ${mem} / 4 ))m" | |
299 | echo "key-cache-size: $(( ${mem} / 4 ))m" | |
300 | ||
301 | # Increase parallel queries | |
302 | echo "outgoing-range: 8192" | |
303 | echo "num-queries-per-thread: 4096" | |
304 | ||
305 | # Use larger send/receive buffers | |
306 | echo "so-sndbuf: 4m" | |
307 | echo "so-rcvbuf: 4m" | |
308 | ) > /etc/unbound/tuning.conf | |
309 | } | |
310 | ||
311 | get_memory_amount() { | |
312 | local key val unit | |
313 | ||
314 | while read -r key val unit; do | |
315 | case "${key}" in | |
316 | MemTotal:*) | |
317 | # Convert to MB | |
318 | echo "$(( ${val} / 1024 ))" | |
319 | break | |
320 | ;; | |
321 | esac | |
322 | done < /proc/meminfo | |
323 | } | |
324 | ||
325 | test_name_server() { | |
326 | local ns=${1} | |
327 | local args | |
328 | ||
329 | # Return codes: | |
330 | # 0 DNSSEC validating | |
331 | # 1 Error: unreachable, etc. | |
332 | # 2 DNSSEC aware | |
333 | # 3 NOT DNSSEC-aware | |
334 | ||
335 | # Exit when the server is not reachable | |
336 | ns_is_online ${ns} || return 1 | |
337 | ||
338 | # Determine the maximum edns buffer size that works | |
339 | local edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) | |
340 | if [ -n "${edns_buffer_size}" ]; then | |
341 | args="${args} +bufsize=${edns_buffer_size}" | |
342 | fi | |
343 | ||
344 | local errors | |
345 | for rr in DNSKEY DS RRSIG; do | |
346 | if ! ns_forwards_${rr} ${ns} ${args}; then | |
347 | errors="${errors} ${rr}" | |
348 | fi | |
349 | done | |
350 | ||
351 | if [ -n "${errors}" ]; then | |
352 | echo >&2 "Unable to retrieve the following resource records from ${ns}: ${errors:1}" | |
353 | return 3 | |
354 | fi | |
355 | ||
356 | if ns_is_validating ${ns} ${args}; then | |
357 | # Return 0 if validating | |
358 | return 0 | |
359 | else | |
360 | # Is DNSSEC-aware | |
361 | return 2 | |
362 | fi | |
363 | } | |
364 | ||
365 | # Sends an A query to the nameserver w/o DNSSEC | |
366 | ns_is_online() { | |
367 | local ns=${1} | |
368 | shift | |
369 | ||
370 | dig @${ns} +nodnssec A ${TEST_DOMAIN} $@ >/dev/null | |
371 | } | |
372 | ||
373 | # Resolving ${TEST_DOMAIN_FAIL} will fail if the nameserver is validating | |
374 | ns_is_validating() { | |
375 | local ns=${1} | |
376 | shift | |
377 | ||
378 | if ! dig @${ns} A ${TEST_DOMAIN_FAIL} $@ | grep -q SERVFAIL; then | |
379 | return 1 | |
380 | else | |
381 | # Determine if NS replies with "ad" data flag if DNSSEC enabled | |
382 | dig @${ns} +dnssec SOA ${TEST_DOMAIN} $@ | awk -F: '/\;\;\ flags\:/ { s=1; if (/\ ad/) s=0; exit s }' | |
383 | fi | |
384 | } | |
385 | ||
386 | # Checks if we can retrieve the DNSKEY for this domain. | |
387 | # dig will print the SOA if nothing was found | |
388 | ns_forwards_DNSKEY() { | |
389 | local ns=${1} | |
390 | shift | |
391 | ||
392 | dig @${ns} DNSKEY ${TEST_DOMAIN} $@ | grep -qv SOA | |
393 | } | |
394 | ||
395 | ns_forwards_DS() { | |
396 | local ns=${1} | |
397 | shift | |
398 | ||
399 | dig @${ns} DS ${TEST_DOMAIN} $@ | grep -qv SOA | |
400 | } | |
401 | ||
402 | ns_forwards_RRSIG() { | |
403 | local ns=${1} | |
404 | shift | |
405 | ||
406 | dig @${ns} +dnssec A ${TEST_DOMAIN} $@ | grep -q RRSIG | |
407 | } | |
408 | ||
409 | ns_supports_tcp() { | |
410 | local ns=${1} | |
411 | shift | |
412 | ||
413 | dig @${ns} +tcp A ${TEST_DOMAIN} $@ >/dev/null || return 1 | |
414 | } | |
415 | ||
416 | ns_determine_edns_buffer_size() { | |
417 | local ns=${1} | |
418 | shift | |
419 | ||
420 | local b | |
421 | for b in 4096 2048 1500 1480 1464 1400 1280 512; do | |
422 | if dig @${ns} +dnssec +bufsize=${b} A ${TEST_DOMAIN} $@ >/dev/null; then | |
423 | echo "${b}" | |
424 | return 0 | |
425 | fi | |
426 | done | |
427 | ||
428 | return 1 | |
429 | } | |
430 | ||
431 | get_root_nameservers() { | |
432 | while read -r hostname ttl record address; do | |
433 | # Searching for A records | |
434 | [ "${record}" = "A" ] || continue | |
435 | ||
436 | echo "${address}" | |
437 | done < /etc/unbound/root.hints | |
438 | } | |
439 | ||
440 | can_resolve_root() { | |
441 | local ns | |
442 | for ns in $(get_root_nameservers); do | |
443 | if dig @${ns} +dnssec SOA . $@ >/dev/null; then | |
444 | return 0 | |
445 | fi | |
446 | done | |
447 | ||
448 | # none of the servers was reachable | |
449 | return 1 | |
450 | } | |
451 | ||
452 | enable_dnssec() { | |
453 | local status=$(unbound-control get_option val-permissive-mode) | |
454 | ||
455 | # Log DNSSEC status | |
456 | echo "on" > /var/ipfire/red/dnssec-status | |
457 | ||
458 | # Don't do anything if DNSSEC is already activated | |
459 | [ "${status}" = "no" ] && return 0 | |
460 | ||
461 | # Activate DNSSEC and flush cache with any stale and unvalidated data | |
462 | unbound-control -q set_option val-permissive-mode: no | |
463 | unbound-control -q flush_zone . | |
464 | } | |
465 | ||
466 | disable_dnssec() { | |
467 | # Log DNSSEC status | |
468 | echo "off" > /var/ipfire/red/dnssec-status | |
469 | ||
470 | unbound-control -q set_option val-permissive-mode: yes | |
471 | } | |
472 | ||
473 | fix_time_if_dns_fail() { | |
474 | # If DNS still not work try to init ntp with | |
475 | # hardcoded ntp.ipfire.org (81.3.27.46) | |
476 | if [ -e "/var/ipfire/red/iface" -a "$(</sys/class/net/$(</var/ipfire/red/iface)/carrier)" = "1" ]; then | |
477 | host 0.ipfire.pool.ntp.org > /dev/null 2>&1 | |
478 | if [ "${?}" != "0" ]; then | |
479 | boot_mesg "DNS still not functioning... Trying to sync time with ntp.ipfire.org (81.3.27.46)..." | |
480 | loadproc /usr/local/bin/settime 81.3.27.46 | |
481 | fi | |
482 | fi | |
483 | } | |
484 | ||
485 | resolve() { | |
486 | local hostname="${1}" | |
487 | ||
488 | local found=0 | |
489 | local ns | |
490 | for ns in $(read_name_servers); do | |
491 | local answer | |
492 | for answer in $(dig +short "@${ns}" A "${hostname}"); do | |
493 | found=1 | |
494 | ||
495 | # Filter out non-IP addresses | |
496 | if [[ ! "${answer}" =~ \.$ ]]; then | |
497 | echo "${answer}" | |
498 | fi | |
499 | done | |
500 | ||
501 | # End loop when we have got something | |
502 | [ ${found} -eq 1 ] && break | |
503 | done | |
504 | } | |
505 | ||
506 | # Sets up Safe Search for various search engines | |
507 | write_safe_search_conf() { | |
508 | local google_tlds=( | |
509 | google.ad | |
510 | google.ae | |
511 | google.al | |
512 | google.am | |
513 | google.as | |
514 | google.at | |
515 | google.az | |
516 | google.ba | |
517 | google.be | |
518 | google.bf | |
519 | google.bg | |
520 | google.bi | |
521 | google.bj | |
522 | google.bs | |
523 | google.bt | |
524 | google.by | |
525 | google.ca | |
526 | google.cat | |
527 | google.cd | |
528 | google.cf | |
529 | google.cg | |
530 | google.ch | |
531 | google.ci | |
532 | google.cl | |
533 | google.cm | |
534 | google.cn | |
535 | google.co.ao | |
536 | google.co.bw | |
537 | google.co.ck | |
538 | google.co.cr | |
539 | google.co.id | |
540 | google.co.il | |
541 | google.co.in | |
542 | google.co.jp | |
543 | google.co.ke | |
544 | google.co.kr | |
545 | google.co.ls | |
546 | google.com | |
547 | google.co.ma | |
548 | google.com.af | |
549 | google.com.ag | |
550 | google.com.ai | |
551 | google.com.ar | |
552 | google.com.au | |
553 | google.com.bd | |
554 | google.com.bh | |
555 | google.com.bn | |
556 | google.com.bo | |
557 | google.com.br | |
558 | google.com.bz | |
559 | google.com.co | |
560 | google.com.cu | |
561 | google.com.cy | |
562 | google.com.do | |
563 | google.com.ec | |
564 | google.com.eg | |
565 | google.com.et | |
566 | google.com.fj | |
567 | google.com.gh | |
568 | google.com.gi | |
569 | google.com.gt | |
570 | google.com.hk | |
571 | google.com.jm | |
572 | google.com.kh | |
573 | google.com.kw | |
574 | google.com.lb | |
575 | google.com.ly | |
576 | google.com.mm | |
577 | google.com.mt | |
578 | google.com.mx | |
579 | google.com.my | |
580 | google.com.na | |
581 | google.com.nf | |
582 | google.com.ng | |
583 | google.com.ni | |
584 | google.com.np | |
585 | google.com.om | |
586 | google.com.pa | |
587 | google.com.pe | |
588 | google.com.pg | |
589 | google.com.ph | |
590 | google.com.pk | |
591 | google.com.pr | |
592 | google.com.py | |
593 | google.com.qa | |
594 | google.com.sa | |
595 | google.com.sb | |
596 | google.com.sg | |
597 | google.com.sl | |
598 | google.com.sv | |
599 | google.com.tj | |
600 | google.com.tr | |
601 | google.com.tw | |
602 | google.com.ua | |
603 | google.com.uy | |
604 | google.com.vc | |
605 | google.com.vn | |
606 | google.co.mz | |
607 | google.co.nz | |
608 | google.co.th | |
609 | google.co.tz | |
610 | google.co.ug | |
611 | google.co.uk | |
612 | google.co.uz | |
613 | google.co.ve | |
614 | google.co.vi | |
615 | google.co.za | |
616 | google.co.zm | |
617 | google.co.zw | |
618 | google.cv | |
619 | google.cz | |
620 | google.de | |
621 | google.dj | |
622 | google.dk | |
623 | google.dm | |
624 | google.dz | |
625 | google.ee | |
626 | google.es | |
627 | google.fi | |
628 | google.fm | |
629 | google.fr | |
630 | google.ga | |
631 | google.ge | |
632 | google.gg | |
633 | google.gl | |
634 | google.gm | |
635 | google.gp | |
636 | google.gr | |
637 | google.gy | |
638 | google.hn | |
639 | google.hr | |
640 | google.ht | |
641 | google.hu | |
642 | google.ie | |
643 | google.im | |
644 | google.iq | |
645 | google.is | |
646 | google.it | |
647 | google.je | |
648 | google.jo | |
649 | google.kg | |
650 | google.ki | |
651 | google.kz | |
652 | google.la | |
653 | google.li | |
654 | google.lk | |
655 | google.lt | |
656 | google.lu | |
657 | google.lv | |
658 | google.md | |
659 | google.me | |
660 | google.mg | |
661 | google.mk | |
662 | google.ml | |
663 | google.mn | |
664 | google.ms | |
665 | google.mu | |
666 | google.mv | |
667 | google.mw | |
668 | google.ne | |
669 | google.nl | |
670 | google.no | |
671 | google.nr | |
672 | google.nu | |
673 | google.pl | |
674 | google.pn | |
675 | google.ps | |
676 | google.pt | |
677 | google.ro | |
678 | google.rs | |
679 | google.ru | |
680 | google.rw | |
681 | google.sc | |
682 | google.se | |
683 | google.sh | |
684 | google.si | |
685 | google.sk | |
686 | google.sm | |
687 | google.sn | |
688 | google.so | |
689 | google.sr | |
690 | google.st | |
691 | google.td | |
692 | google.tg | |
693 | google.tk | |
694 | google.tl | |
695 | google.tm | |
696 | google.tn | |
697 | google.to | |
698 | google.tt | |
699 | google.vg | |
700 | google.vu | |
701 | google.ws | |
702 | ) | |
703 | ||
704 | ( | |
705 | # Nothing to do if safe search is not enabled | |
706 | if [ "${ENABLE_SAFE_SEARCH}" != "on" ]; then | |
707 | exit 0 | |
708 | fi | |
709 | ||
710 | # This all belongs into the server: section | |
711 | echo "server:" | |
712 | ||
713 | # Bing | |
714 | echo " local-zone: bing.com transparent" | |
715 | for address in $(resolve "strict.bing.com"); do | |
716 | echo " local-data: \"www.bing.com ${LOCAL_TTL} IN A ${address}\"" | |
717 | done | |
718 | ||
719 | # DuckDuckGo | |
720 | echo " local-zone: duckduckgo.com typetransparent" | |
721 | for address in $(resolve "safe.duckduckgo.com"); do | |
722 | echo " local-data: \"duckduckgo.com ${LOCAL_TTL} IN A ${address}\"" | |
723 | done | |
724 | ||
725 | ||
726 | addresses="$(resolve "forcesafesearch.google.com")" | |
727 | local domain | |
728 | for domain in ${google_tlds[@]}; do | |
729 | echo " local-zone: ${domain} transparent" | |
730 | for address in ${addresses}; do | |
731 | echo " local-data: \"www.${domain} ${LOCAL_TTL} IN A ${address}\"" | |
732 | done | |
733 | done | |
734 | ||
735 | # Yandex | |
736 | for domain in yandex.com yandex.ru; do | |
737 | echo " local-zone: ${domain} typetransparent" | |
738 | for address in $(resolve "familysearch.${domain}"); do | |
739 | echo " local-data: \"${domain} ${LOCAL_TTL} IN A ${address}\"" | |
740 | done | |
741 | done | |
742 | ||
743 | # YouTube | |
744 | echo " local-zone: youtube.com transparent" | |
745 | for address in $(resolve "restrictmoderate.youtube.com"); do | |
746 | echo " local-data: \"www.youtube.com ${LOCAL_TTL} IN A ${address}\"" | |
747 | done | |
748 | ) > /etc/unbound/safe-search.conf | |
749 | } | |
750 | ||
751 | case "$1" in | |
752 | start) | |
753 | # Print a nicer messagen when unbound is already running | |
754 | if pidofproc -s unbound; then | |
755 | statusproc /usr/sbin/unbound | |
756 | exit 0 | |
757 | fi | |
758 | ||
759 | eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings) | |
760 | ||
761 | # Update configuration files | |
762 | write_tuning_conf | |
763 | write_forward_conf | |
764 | write_safe_search_conf | |
765 | ||
766 | boot_mesg "Starting Unbound DNS Proxy..." | |
767 | loadproc /usr/sbin/unbound || exit $? | |
768 | ||
769 | # Make own hostname resolveable | |
770 | own_hostname | |
771 | ||
772 | # Update any known forwarding name servers | |
773 | update_forwarders | |
774 | ||
775 | # Update hosts | |
776 | update_hosts | |
777 | ||
778 | fix_time_if_dns_fail | |
779 | ;; | |
780 | ||
781 | stop) | |
782 | boot_mesg "Stopping Unbound DNS Proxy..." | |
783 | killproc /usr/sbin/unbound | |
784 | ;; | |
785 | ||
786 | restart) | |
787 | $0 stop | |
788 | sleep 1 | |
789 | $0 start | |
790 | ;; | |
791 | ||
792 | status) | |
793 | statusproc /usr/sbin/unbound | |
794 | ;; | |
795 | ||
796 | update-forwarders) | |
797 | # Do not try updating forwarders when unbound is not running | |
798 | if ! pgrep unbound &>/dev/null; then | |
799 | exit 0 | |
800 | fi | |
801 | ||
802 | update_forwarders | |
803 | ||
804 | unbound-control flush_negative > /dev/null | |
805 | unbound-control flush_bogus > /dev/null | |
806 | ||
807 | fix_time_if_dns_fail | |
808 | ;; | |
809 | ||
810 | test-name-server) | |
811 | ns=${2} | |
812 | ||
813 | test_name_server ${ns} | |
814 | ret=${?} | |
815 | ||
816 | case "${ret}" in | |
817 | 0) | |
818 | echo "${ns} is validating" | |
819 | ;; | |
820 | 2) | |
821 | echo "${ns} is DNSSEC-aware" | |
822 | ;; | |
823 | 3) | |
824 | echo "${ns} is NOT DNSSEC-aware" | |
825 | ;; | |
826 | *) | |
827 | echo "Test failed for an unknown reason" | |
828 | exit ${ret} | |
829 | ;; | |
830 | esac | |
831 | ||
832 | if ns_supports_tcp ${ns}; then | |
833 | echo "${ns} supports TCP fallback" | |
834 | else | |
835 | echo "${ns} does not support TCP fallback" | |
836 | fi | |
837 | ||
838 | edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) | |
839 | if [ -n "${edns_buffer_size}" ]; then | |
840 | echo "EDNS buffer size for ${ns}: ${edns_buffer_size}" | |
841 | fi | |
842 | ||
843 | exit ${ret} | |
844 | ;; | |
845 | ||
846 | resolve) | |
847 | resolve "${2}" | |
848 | ;; | |
849 | ||
850 | *) | |
851 | echo "Usage: $0 {start|stop|restart|status|update-forwarders|test-name-server|resolve}" | |
852 | exit 1 | |
853 | ;; | |
854 | esac | |
855 | ||
856 | # End $rc_base/init.d/unbound |