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d0e5f71f ML |
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> | |
d0e5f71f ML |
6 | |
7 | . /etc/sysconfig/rc | |
8 | . ${rc_functions} | |
9 | ||
b29c97b1 AF |
10 | TEST_DOMAIN="ipfire.org" |
11 | ||
12 | # This domain will never validate | |
13 | TEST_DOMAIN_FAIL="dnssec-failed.org" | |
14 | ||
7ebc0a16 | 15 | INSECURE_ZONES= |
b8f5eda8 | 16 | USE_FORWARDERS=1 |
661ab153 | 17 | ENABLE_SAFE_SEARCH=off |
974d8653 | 18 | FORCE_TCP=off |
d0e5f71f | 19 | |
36792be6 MT |
20 | # Cache any local zones for 60 seconds |
21 | LOCAL_TTL=60 | |
22 | ||
b2f96a94 MT |
23 | # EDNS buffer size |
24 | EDNS_DEFAULT_BUFFER_SIZE=4096 | |
25 | ||
b8f5eda8 MT |
26 | # Load optional configuration |
27 | [ -e "/etc/sysconfig/unbound" ] && . /etc/sysconfig/unbound | |
d0e5f71f | 28 | |
974d8653 MT |
29 | DIG_ARGS=() |
30 | ||
31 | if [ "${FORCE_TCP}" = "on" ]; then | |
32 | DIG_ARGS+=( "+tcp" ) | |
33 | fi | |
34 | ||
f75c279b AF |
35 | ip_address_revptr() { |
36 | local addr=${1} | |
37 | ||
38 | local a1 a2 a3 a4 | |
39 | IFS=. read -r a1 a2 a3 a4 <<< ${addr} | |
40 | ||
41 | echo "${a4}.${a3}.${a2}.${a1}.in-addr.arpa" | |
42 | } | |
43 | ||
b8f5eda8 MT |
44 | read_name_servers() { |
45 | local i | |
46 | for i in 1 2; do | |
47 | echo "$(</var/ipfire/red/dns${i})" | |
682a6b2d | 48 | done 2>/dev/null | xargs echo |
b8f5eda8 MT |
49 | } |
50 | ||
3ec3329d AF |
51 | check_red_has_carrier_and_ip() { |
52 | # Interface configured ? | |
53 | [ ! -e "/var/ipfire/red/iface" ] && return 0; | |
54 | ||
55 | # Interface present ? | |
56 | [ ! -e "/sys/class/net/$(</var/ipfire/red/iface)" ] && return 0; | |
57 | ||
58 | # has carrier ? | |
59 | [ ! "$(</sys/class/net/$(</var/ipfire/red/iface)/carrier)" = "1" ] && return 0; | |
60 | ||
61 | # has ip ? | |
62 | [ "$(ip address show dev $(</var/ipfire/red/iface) | grep "inet")" = "" ] && return 0; | |
63 | ||
64 | return 1; | |
65 | } | |
66 | ||
b8f5eda8 MT |
67 | config_header() { |
68 | echo "# This file is automatically generated and any changes" | |
69 | echo "# will be overwritten. DO NOT EDIT!" | |
70 | echo | |
71 | } | |
72 | ||
73 | update_forwarders() { | |
3ec3329d AF |
74 | check_red_has_carrier_and_ip |
75 | if [ "${USE_FORWARDERS}" = "1" -a "${?}" = "1" ]; then | |
b29c97b1 AF |
76 | local forwarders |
77 | local broken_forwarders | |
78 | ||
79 | local ns | |
80 | for ns in $(read_name_servers); do | |
81 | test_name_server ${ns} &>/dev/null | |
82 | case "$?" in | |
83 | # Only use DNSSEC-validating or DNSSEC-aware name servers | |
84 | 0|2) | |
85 | forwarders="${forwarders} ${ns}" | |
86 | ;; | |
87 | *) | |
88 | broken_forwarders="${broken_forwarders} ${ns}" | |
89 | ;; | |
90 | esac | |
91 | done | |
92 | ||
8f3034d0 | 93 | # Determine EDNS buffer size |
b2f96a94 | 94 | local new_edns_buffer_size=${EDNS_DEFAULT_BUFFER_SIZE} |
8f3034d0 | 95 | |
b2f96a94 MT |
96 | for ns in ${forwarders}; do |
97 | local edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) | |
98 | if [ -n "${edns_buffer_size}" ]; then | |
99 | if [ ${edns_buffer_size} -lt ${new_edns_buffer_size} ]; then | |
100 | new_edns_buffer_size=${edns_buffer_size} | |
8f3034d0 | 101 | fi |
b2f96a94 MT |
102 | fi |
103 | done | |
104 | ||
105 | if [ ${new_edns_buffer_size} -lt ${EDNS_DEFAULT_BUFFER_SIZE} ]; then | |
106 | boot_mesg "EDNS buffer size reduced to ${new_edns_buffer_size}" ${WARNING} | |
107 | echo_warning | |
8f3034d0 MT |
108 | |
109 | unbound-control -q set_option edns-buffer-size: ${new_edns_buffer_size} | |
110 | fi | |
111 | ||
b29c97b1 AF |
112 | # Show warning for any broken upstream name servers |
113 | if [ -n "${broken_forwarders}" ]; then | |
114 | boot_mesg "Ignoring broken upstream name server(s): ${broken_forwarders:1}" ${WARNING} | |
115 | echo_warning | |
116 | fi | |
b8f5eda8 | 117 | |
e432689a | 118 | if [ -n "${forwarders}" ]; then |
b29c97b1 AF |
119 | boot_mesg "Configuring upstream name server(s): ${forwarders:1}" ${INFO} |
120 | echo_ok | |
b8f5eda8 | 121 | |
e432689a MT |
122 | # Make sure DNSSEC is activated |
123 | enable_dnssec | |
124 | ||
e24d6112 | 125 | echo "${forwarders}" > /var/ipfire/red/dns |
b29c97b1 AF |
126 | unbound-control -q forward ${forwarders} |
127 | return 0 | |
e432689a MT |
128 | |
129 | # In case we have found no working forwarders | |
130 | else | |
131 | # Test if the recursor mode is available | |
132 | if can_resolve_root +bufsize=${new_edns_buffer_size}; then | |
133 | # Make sure DNSSEC is activated | |
134 | enable_dnssec | |
135 | ||
136 | boot_mesg "Falling back to recursor mode" ${WARNING} | |
137 | echo_warning | |
138 | ||
139 | # If not, we set DNSSEC in permissive mode and allow using all recursors | |
140 | elif [ -n "${broken_forwarders}" ]; then | |
141 | disable_dnssec | |
142 | ||
143 | boot_mesg "DNSSEC has been set to permissive mode" ${FAILURE} | |
144 | echo_failure | |
145 | ||
146 | echo "${broken_forwarders}" > /var/ipfire/red/dns | |
147 | unbound-control -q forward ${broken_forwarders} | |
148 | return 0 | |
149 | fi | |
b29c97b1 | 150 | fi |
b8f5eda8 | 151 | fi |
b29c97b1 AF |
152 | |
153 | # If forwarders cannot be used we run in recursor mode | |
e24d6112 | 154 | echo "local recursor" > /var/ipfire/red/dns |
b29c97b1 | 155 | unbound-control -q forward off |
b8f5eda8 MT |
156 | } |
157 | ||
3ec3329d AF |
158 | remove_forwarders() { |
159 | enable_dnssec | |
160 | echo "local recursor" > /var/ipfire/red/dns | |
161 | unbound-control -q forward off | |
162 | ||
163 | } | |
164 | ||
f75c279b AF |
165 | own_hostname() { |
166 | local hostname=$(hostname -f) | |
0d7ca700 | 167 | # 1.1.1.1 is reserved for unused green, skip this |
f75c279b AF |
168 | if [ -n "${GREEN_ADDRESS}" -a "${GREEN_ADDRESS}" != "1.1.1.1" ]; then |
169 | unbound-control -q local_data "${hostname} ${LOCAL_TTL} IN A ${GREEN_ADDRESS}" | |
170 | fi | |
171 | ||
172 | local address | |
173 | for address in ${GREEN_ADDRESS} ${BLUE_ADDRESS} ${ORANGE_ADDRESS}; do | |
174 | [ -n "${address}" ] || continue | |
175 | [ "${address}" = "1.1.1.1" ] && continue | |
176 | ||
177 | address=$(ip_address_revptr ${address}) | |
178 | unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${hostname}" | |
179 | done | |
180 | } | |
181 | ||
36792be6 | 182 | update_hosts() { |
6874a576 | 183 | local enabled address hostname domainname generateptr |
36792be6 | 184 | |
6874a576 | 185 | while IFS="," read -r enabled address hostname domainname generateptr; do |
36792be6 MT |
186 | [ "${enabled}" = "on" ] || continue |
187 | ||
188 | # Build FQDN | |
189 | local fqdn="${hostname}.${domainname}" | |
190 | ||
191 | unbound-control -q local_data "${fqdn} ${LOCAL_TTL} IN A ${address}" | |
f75c279b | 192 | |
868d2a1f MT |
193 | # Skip reverse resolution if the address equals the GREEN address |
194 | [ "${address}" = "${GREEN_ADDRESS}" ] && continue | |
195 | ||
6874a576 PM |
196 | # Skip reverse resolution if user requested not to do so |
197 | [ "${generateptr}" = "off" ] && continue | |
198 | ||
f75c279b AF |
199 | # Add RDNS |
200 | address=$(ip_address_revptr ${address}) | |
201 | unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${fqdn}" | |
36792be6 MT |
202 | done < /var/ipfire/main/hosts |
203 | } | |
204 | ||
b8f5eda8 MT |
205 | write_forward_conf() { |
206 | ( | |
207 | config_header | |
208 | ||
974d8653 MT |
209 | # Force using TCP for upstream servers only |
210 | if [ "${FORCE_TCP}" = "on" ]; then | |
211 | echo "# Force using TCP for upstream servers only" | |
212 | echo "server:" | |
213 | echo " tcp-upstream: yes" | |
214 | echo | |
215 | fi | |
216 | ||
7ebc0a16 | 217 | local insecure_zones="${INSECURE_ZONES}" |
a6dcc5bb | 218 | |
1ececb67 MT |
219 | local enabled zone server servers remark disable_dnssec rest |
220 | while IFS="," read -r enabled zone servers remark disable_dnssec rest; do | |
b8f5eda8 MT |
221 | # Line must be enabled. |
222 | [ "${enabled}" = "on" ] || continue | |
223 | ||
a6dcc5bb MT |
224 | # Zones that end with .local are commonly used for internal |
225 | # zones and therefore not signed | |
226 | case "${zone}" in | |
227 | *.local) | |
228 | insecure_zones="${insecure_zones} ${zone}" | |
229 | ;; | |
1ececb67 MT |
230 | *) |
231 | if [ "${disable_dnssec}" = "on" ]; then | |
232 | insecure_zones="${insecure_zones} ${zone}" | |
233 | fi | |
234 | ;; | |
a6dcc5bb MT |
235 | esac |
236 | ||
c7e41255 MT |
237 | # Reverse-lookup zones must be stubs |
238 | case "${zone}" in | |
239 | *.in-addr.arpa) | |
240 | echo "stub-zone:" | |
9f099932 | 241 | echo " name: ${zone}" |
c9ae511e | 242 | for server in ${servers//|/ }; do |
f33d2897 MT |
243 | if [[ ${server} =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then |
244 | echo " stub-addr: ${server}" | |
245 | else | |
246 | echo " stub-host: ${server}" | |
247 | fi | |
c9ae511e | 248 | done |
c7e41255 MT |
249 | echo |
250 | echo "server:" | |
9f099932 | 251 | echo " local-zone: \"${zone}\" transparent" |
c7e41255 MT |
252 | echo |
253 | ;; | |
254 | *) | |
255 | echo "forward-zone:" | |
9f099932 | 256 | echo " name: ${zone}" |
c9ae511e | 257 | for server in ${servers//|/ }; do |
f33d2897 MT |
258 | if [[ ${server} =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then |
259 | echo " forward-addr: ${server}" | |
260 | else | |
261 | echo " forward-host: ${server}" | |
262 | fi | |
c9ae511e | 263 | done |
c7e41255 MT |
264 | echo |
265 | ;; | |
266 | esac | |
b8f5eda8 | 267 | done < /var/ipfire/dnsforward/config |
a6dcc5bb MT |
268 | |
269 | if [ -n "${insecure_zones}" ]; then | |
270 | echo "server:" | |
271 | ||
272 | for zone in ${insecure_zones}; do | |
273 | echo " domain-insecure: ${zone}" | |
274 | done | |
275 | fi | |
b8f5eda8 MT |
276 | ) > /etc/unbound/forward.conf |
277 | } | |
278 | ||
b658a451 MT |
279 | write_tuning_conf() { |
280 | # https://www.unbound.net/documentation/howto_optimise.html | |
281 | ||
282 | # Determine number of online processors | |
283 | local processors=$(getconf _NPROCESSORS_ONLN) | |
284 | ||
285 | # Determine number of slabs | |
286 | local slabs=1 | |
287 | while [ ${slabs} -lt ${processors} ]; do | |
288 | slabs=$(( ${slabs} * 2 )) | |
289 | done | |
290 | ||
291 | # Determine amount of system memory | |
292 | local mem=$(get_memory_amount) | |
293 | ||
294 | # In the worst case scenario, unbound can use double the | |
295 | # amount of memory allocated to a cache due to malloc overhead | |
296 | ||
4a0d69ca MT |
297 | # Even larger systems with more than 8GB of RAM |
298 | if [ ${mem} -ge 8192 ]; then | |
299 | mem=1024 | |
300 | ||
301 | # Extra large systems with more than 4GB of RAM | |
302 | elif [ ${mem} -ge 4096 ]; then | |
303 | mem=512 | |
304 | ||
b658a451 | 305 | # Large systems with more than 2GB of RAM |
4a0d69ca | 306 | elif [ ${mem} -ge 2048 ]; then |
128db1a3 | 307 | mem=256 |
b658a451 | 308 | |
4a0d69ca MT |
309 | # Medium systems with more than 1GB of RAM |
310 | elif [ ${mem} -ge 1024 ]; then | |
311 | mem=128 | |
312 | ||
b658a451 MT |
313 | # Small systems with less than 256MB of RAM |
314 | elif [ ${mem} -le 256 ]; then | |
128db1a3 | 315 | mem=16 |
b658a451 MT |
316 | |
317 | # Everything else | |
318 | else | |
128db1a3 | 319 | mem=64 |
b658a451 MT |
320 | fi |
321 | ||
322 | ( | |
323 | config_header | |
324 | ||
325 | # We run one thread per processor | |
326 | echo "num-threads: ${processors}" | |
5012e53c | 327 | echo "so-reuseport: yes" |
b658a451 MT |
328 | |
329 | # Adjust number of slabs | |
330 | echo "infra-cache-slabs: ${slabs}" | |
331 | echo "key-cache-slabs: ${slabs}" | |
332 | echo "msg-cache-slabs: ${slabs}" | |
333 | echo "rrset-cache-slabs: ${slabs}" | |
334 | ||
335 | # Slice up the cache | |
336 | echo "rrset-cache-size: $(( ${mem} / 2 ))m" | |
337 | echo "msg-cache-size: $(( ${mem} / 4 ))m" | |
338 | echo "key-cache-size: $(( ${mem} / 4 ))m" | |
0a7dca2c MT |
339 | |
340 | # Increase parallel queries | |
341 | echo "outgoing-range: 8192" | |
342 | echo "num-queries-per-thread: 4096" | |
c20b2009 MT |
343 | |
344 | # Use larger send/receive buffers | |
345 | echo "so-sndbuf: 4m" | |
346 | echo "so-rcvbuf: 4m" | |
b658a451 MT |
347 | ) > /etc/unbound/tuning.conf |
348 | } | |
349 | ||
350 | get_memory_amount() { | |
351 | local key val unit | |
352 | ||
353 | while read -r key val unit; do | |
354 | case "${key}" in | |
355 | MemTotal:*) | |
356 | # Convert to MB | |
357 | echo "$(( ${val} / 1024 ))" | |
358 | break | |
359 | ;; | |
360 | esac | |
361 | done < /proc/meminfo | |
362 | } | |
b8f5eda8 | 363 | |
b29c97b1 AF |
364 | test_name_server() { |
365 | local ns=${1} | |
8f3034d0 | 366 | local args |
b29c97b1 AF |
367 | |
368 | # Return codes: | |
369 | # 0 DNSSEC validating | |
370 | # 1 Error: unreachable, etc. | |
371 | # 2 DNSSEC aware | |
372 | # 3 NOT DNSSEC-aware | |
373 | ||
374 | # Exit when the server is not reachable | |
375 | ns_is_online ${ns} || return 1 | |
376 | ||
8f3034d0 MT |
377 | # Determine the maximum edns buffer size that works |
378 | local edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) | |
379 | if [ -n "${edns_buffer_size}" ]; then | |
380 | args="${args} +bufsize=${edns_buffer_size}" | |
381 | fi | |
382 | ||
b29c97b1 AF |
383 | local errors |
384 | for rr in DNSKEY DS RRSIG; do | |
8f3034d0 | 385 | if ! ns_forwards_${rr} ${ns} ${args}; then |
b29c97b1 AF |
386 | errors="${errors} ${rr}" |
387 | fi | |
388 | done | |
389 | ||
390 | if [ -n "${errors}" ]; then | |
391 | echo >&2 "Unable to retrieve the following resource records from ${ns}: ${errors:1}" | |
392 | return 3 | |
393 | fi | |
394 | ||
8f3034d0 | 395 | if ns_is_validating ${ns} ${args}; then |
2aa15dee MT |
396 | # Return 0 if validating |
397 | return 0 | |
398 | else | |
399 | # Is DNSSEC-aware | |
400 | return 2 | |
401 | fi | |
b29c97b1 AF |
402 | } |
403 | ||
404 | # Sends an A query to the nameserver w/o DNSSEC | |
405 | ns_is_online() { | |
406 | local ns=${1} | |
8f3034d0 | 407 | shift |
b29c97b1 | 408 | |
974d8653 | 409 | dig "${DIG_ARGS[@]}" @${ns} +nodnssec A ${TEST_DOMAIN} $@ >/dev/null |
b29c97b1 AF |
410 | } |
411 | ||
412 | # Resolving ${TEST_DOMAIN_FAIL} will fail if the nameserver is validating | |
413 | ns_is_validating() { | |
414 | local ns=${1} | |
8f3034d0 | 415 | shift |
b29c97b1 | 416 | |
974d8653 | 417 | if ! dig "${DIG_ARGS[@]}" @${ns} A ${TEST_DOMAIN_FAIL} $@ | grep -q SERVFAIL; then |
438da7e0 PM |
418 | return 1 |
419 | else | |
420 | # Determine if NS replies with "ad" data flag if DNSSEC enabled | |
974d8653 | 421 | dig "${DIG_ARGS[@]}" @${ns} +dnssec SOA ${TEST_DOMAIN} $@ | awk -F: '/\;\;\ flags\:/ { s=1; if (/\ ad/) s=0; exit s }' |
438da7e0 | 422 | fi |
b29c97b1 AF |
423 | } |
424 | ||
425 | # Checks if we can retrieve the DNSKEY for this domain. | |
426 | # dig will print the SOA if nothing was found | |
427 | ns_forwards_DNSKEY() { | |
428 | local ns=${1} | |
8f3034d0 | 429 | shift |
b29c97b1 | 430 | |
974d8653 | 431 | dig "${DIG_ARGS[@]}" @${ns} DNSKEY ${TEST_DOMAIN} $@ | grep -qv SOA |
b29c97b1 AF |
432 | } |
433 | ||
434 | ns_forwards_DS() { | |
435 | local ns=${1} | |
8f3034d0 | 436 | shift |
b29c97b1 | 437 | |
974d8653 | 438 | dig "${DIG_ARGS[@]}" @${ns} DS ${TEST_DOMAIN} $@ | grep -qv SOA |
b29c97b1 AF |
439 | } |
440 | ||
441 | ns_forwards_RRSIG() { | |
442 | local ns=${1} | |
8f3034d0 | 443 | shift |
b29c97b1 | 444 | |
974d8653 | 445 | dig "${DIG_ARGS[@]}" @${ns} +dnssec A ${TEST_DOMAIN} $@ | grep -q RRSIG |
b29c97b1 AF |
446 | } |
447 | ||
448 | ns_supports_tcp() { | |
449 | local ns=${1} | |
8f3034d0 MT |
450 | shift |
451 | ||
974d8653 | 452 | # If TCP is forced we know by now if the server responds to it |
cdf373c8 | 453 | if [ "${FORCE_TCP}" = "on" ]; then |
974d8653 MT |
454 | return 0 |
455 | fi | |
456 | ||
457 | dig "${DIG_ARGS[@]}" @${ns} +tcp A ${TEST_DOMAIN} $@ >/dev/null || return 1 | |
8f3034d0 MT |
458 | } |
459 | ||
460 | ns_determine_edns_buffer_size() { | |
461 | local ns=${1} | |
462 | shift | |
463 | ||
464 | local b | |
465 | for b in 4096 2048 1500 1480 1464 1400 1280 512; do | |
974d8653 | 466 | if dig "${DIG_ARGS[@]}" @${ns} +dnssec +bufsize=${b} A ${TEST_DOMAIN} $@ >/dev/null; then |
8f3034d0 MT |
467 | echo "${b}" |
468 | return 0 | |
469 | fi | |
470 | done | |
b29c97b1 | 471 | |
8f3034d0 | 472 | return 1 |
b29c97b1 AF |
473 | } |
474 | ||
e432689a MT |
475 | get_root_nameservers() { |
476 | while read -r hostname ttl record address; do | |
477 | # Searching for A records | |
478 | [ "${record}" = "A" ] || continue | |
479 | ||
480 | echo "${address}" | |
481 | done < /etc/unbound/root.hints | |
482 | } | |
483 | ||
484 | can_resolve_root() { | |
485 | local ns | |
486 | for ns in $(get_root_nameservers); do | |
974d8653 | 487 | if dig "${DIG_ARGS[@]}" @${ns} +dnssec SOA . $@ >/dev/null; then |
e432689a MT |
488 | return 0 |
489 | fi | |
490 | done | |
491 | ||
492 | # none of the servers was reachable | |
493 | return 1 | |
494 | } | |
495 | ||
496 | enable_dnssec() { | |
497 | local status=$(unbound-control get_option val-permissive-mode) | |
498 | ||
183b23b5 MT |
499 | # Log DNSSEC status |
500 | echo "on" > /var/ipfire/red/dnssec-status | |
501 | ||
094a27c8 MT |
502 | # Don't do anything if DNSSEC is already activated |
503 | [ "${status}" = "no" ] && return 0 | |
504 | ||
e432689a MT |
505 | # Activate DNSSEC and flush cache with any stale and unvalidated data |
506 | unbound-control -q set_option val-permissive-mode: no | |
507 | unbound-control -q flush_zone . | |
508 | } | |
509 | ||
510 | disable_dnssec() { | |
183b23b5 MT |
511 | # Log DNSSEC status |
512 | echo "off" > /var/ipfire/red/dnssec-status | |
513 | ||
e432689a MT |
514 | unbound-control -q set_option val-permissive-mode: yes |
515 | } | |
516 | ||
68fac98a AF |
517 | fix_time_if_dns_fail() { |
518 | # If DNS still not work try to init ntp with | |
519 | # hardcoded ntp.ipfire.org (81.3.27.46) | |
3ec3329d AF |
520 | check_red_has_carrier_and_ip |
521 | if [ -e "/var/ipfire/red/iface" -a "${?}" = "1" ]; then | |
68fac98a AF |
522 | host 0.ipfire.pool.ntp.org > /dev/null 2>&1 |
523 | if [ "${?}" != "0" ]; then | |
3eeff87f | 524 | boot_mesg "DNS still not functioning... Trying to sync time with ntp.ipfire.org (81.3.27.46)..." |
68fac98a AF |
525 | loadproc /usr/local/bin/settime 81.3.27.46 |
526 | fi | |
527 | fi | |
528 | } | |
529 | ||
043e7aa5 MT |
530 | resolve() { |
531 | local hostname="${1}" | |
532 | ||
533 | local found=0 | |
534 | local ns | |
535 | for ns in $(read_name_servers); do | |
536 | local answer | |
974d8653 | 537 | for answer in $(dig "${DIG_ARGS[@]}" +short "@${ns}" A "${hostname}"); do |
043e7aa5 MT |
538 | found=1 |
539 | ||
540 | # Filter out non-IP addresses | |
541 | if [[ ! "${answer}" =~ \.$ ]]; then | |
542 | echo "${answer}" | |
543 | fi | |
544 | done | |
545 | ||
546 | # End loop when we have got something | |
547 | [ ${found} -eq 1 ] && break | |
548 | done | |
549 | } | |
550 | ||
661ab153 MT |
551 | # Sets up Safe Search for various search engines |
552 | write_safe_search_conf() { | |
553 | local google_tlds=( | |
554 | google.ad | |
555 | google.ae | |
556 | google.al | |
557 | google.am | |
558 | google.as | |
559 | google.at | |
560 | google.az | |
561 | google.ba | |
562 | google.be | |
563 | google.bf | |
564 | google.bg | |
565 | google.bi | |
566 | google.bj | |
567 | google.bs | |
568 | google.bt | |
569 | google.by | |
570 | google.ca | |
571 | google.cat | |
572 | google.cd | |
573 | google.cf | |
574 | google.cg | |
575 | google.ch | |
576 | google.ci | |
577 | google.cl | |
578 | google.cm | |
579 | google.cn | |
580 | google.co.ao | |
581 | google.co.bw | |
582 | google.co.ck | |
583 | google.co.cr | |
584 | google.co.id | |
585 | google.co.il | |
586 | google.co.in | |
587 | google.co.jp | |
588 | google.co.ke | |
589 | google.co.kr | |
590 | google.co.ls | |
591 | google.com | |
592 | google.co.ma | |
593 | google.com.af | |
594 | google.com.ag | |
595 | google.com.ai | |
596 | google.com.ar | |
597 | google.com.au | |
598 | google.com.bd | |
599 | google.com.bh | |
600 | google.com.bn | |
601 | google.com.bo | |
602 | google.com.br | |
603 | google.com.bz | |
604 | google.com.co | |
605 | google.com.cu | |
606 | google.com.cy | |
607 | google.com.do | |
608 | google.com.ec | |
609 | google.com.eg | |
610 | google.com.et | |
611 | google.com.fj | |
612 | google.com.gh | |
613 | google.com.gi | |
614 | google.com.gt | |
615 | google.com.hk | |
616 | google.com.jm | |
617 | google.com.kh | |
618 | google.com.kw | |
619 | google.com.lb | |
620 | google.com.ly | |
621 | google.com.mm | |
622 | google.com.mt | |
623 | google.com.mx | |
624 | google.com.my | |
625 | google.com.na | |
626 | google.com.nf | |
627 | google.com.ng | |
628 | google.com.ni | |
629 | google.com.np | |
630 | google.com.om | |
631 | google.com.pa | |
632 | google.com.pe | |
633 | google.com.pg | |
634 | google.com.ph | |
635 | google.com.pk | |
636 | google.com.pr | |
637 | google.com.py | |
638 | google.com.qa | |
639 | google.com.sa | |
640 | google.com.sb | |
641 | google.com.sg | |
642 | google.com.sl | |
643 | google.com.sv | |
644 | google.com.tj | |
645 | google.com.tr | |
646 | google.com.tw | |
647 | google.com.ua | |
648 | google.com.uy | |
649 | google.com.vc | |
650 | google.com.vn | |
651 | google.co.mz | |
652 | google.co.nz | |
653 | google.co.th | |
654 | google.co.tz | |
655 | google.co.ug | |
656 | google.co.uk | |
657 | google.co.uz | |
658 | google.co.ve | |
659 | google.co.vi | |
660 | google.co.za | |
661 | google.co.zm | |
662 | google.co.zw | |
663 | google.cv | |
664 | google.cz | |
665 | google.de | |
666 | google.dj | |
667 | google.dk | |
668 | google.dm | |
669 | google.dz | |
670 | google.ee | |
671 | google.es | |
672 | google.fi | |
673 | google.fm | |
674 | google.fr | |
675 | google.ga | |
676 | google.ge | |
677 | google.gg | |
678 | google.gl | |
679 | google.gm | |
680 | google.gp | |
681 | google.gr | |
682 | google.gy | |
683 | google.hn | |
684 | google.hr | |
685 | google.ht | |
686 | google.hu | |
687 | google.ie | |
688 | google.im | |
689 | google.iq | |
690 | google.is | |
691 | google.it | |
692 | google.je | |
693 | google.jo | |
694 | google.kg | |
695 | google.ki | |
696 | google.kz | |
697 | google.la | |
698 | google.li | |
699 | google.lk | |
700 | google.lt | |
701 | google.lu | |
702 | google.lv | |
703 | google.md | |
704 | google.me | |
705 | google.mg | |
706 | google.mk | |
707 | google.ml | |
708 | google.mn | |
709 | google.ms | |
710 | google.mu | |
711 | google.mv | |
712 | google.mw | |
713 | google.ne | |
714 | google.nl | |
715 | google.no | |
716 | google.nr | |
717 | google.nu | |
718 | google.pl | |
719 | google.pn | |
720 | google.ps | |
721 | google.pt | |
722 | google.ro | |
723 | google.rs | |
724 | google.ru | |
725 | google.rw | |
726 | google.sc | |
727 | google.se | |
728 | google.sh | |
729 | google.si | |
730 | google.sk | |
731 | google.sm | |
732 | google.sn | |
733 | google.so | |
734 | google.sr | |
735 | google.st | |
736 | google.td | |
737 | google.tg | |
738 | google.tk | |
739 | google.tl | |
740 | google.tm | |
741 | google.tn | |
742 | google.to | |
743 | google.tt | |
744 | google.vg | |
745 | google.vu | |
746 | google.ws | |
747 | ) | |
748 | ||
749 | ( | |
750 | # Nothing to do if safe search is not enabled | |
751 | if [ "${ENABLE_SAFE_SEARCH}" != "on" ]; then | |
752 | exit 0 | |
753 | fi | |
754 | ||
755 | # This all belongs into the server: section | |
756 | echo "server:" | |
757 | ||
758 | # Bing | |
e263c29c | 759 | echo " local-zone: bing.com transparent" |
043e7aa5 MT |
760 | for address in $(resolve "strict.bing.com"); do |
761 | echo " local-data: \"www.bing.com ${LOCAL_TTL} IN A ${address}\"" | |
762 | done | |
661ab153 MT |
763 | |
764 | # DuckDuckGo | |
e263c29c | 765 | echo " local-zone: duckduckgo.com typetransparent" |
043e7aa5 MT |
766 | for address in $(resolve "safe.duckduckgo.com"); do |
767 | echo " local-data: \"duckduckgo.com ${LOCAL_TTL} IN A ${address}\"" | |
768 | done | |
661ab153 MT |
769 | |
770 | ||
043e7aa5 | 771 | addresses="$(resolve "forcesafesearch.google.com")" |
661ab153 MT |
772 | local domain |
773 | for domain in ${google_tlds[@]}; do | |
774 | echo " local-zone: ${domain} transparent" | |
043e7aa5 MT |
775 | for address in ${addresses}; do |
776 | echo " local-data: \"www.${domain} ${LOCAL_TTL} IN A ${address}\"" | |
777 | done | |
661ab153 MT |
778 | done |
779 | ||
780 | # Yandex | |
91056ade | 781 | for domain in yandex.com yandex.ru; do |
e263c29c | 782 | echo " local-zone: ${domain} typetransparent" |
91056ade MT |
783 | for address in $(resolve "familysearch.${domain}"); do |
784 | echo " local-data: \"${domain} ${LOCAL_TTL} IN A ${address}\"" | |
785 | done | |
786 | done | |
f617fd91 MT |
787 | |
788 | # YouTube | |
789 | echo " local-zone: youtube.com transparent" | |
043e7aa5 MT |
790 | for address in $(resolve "restrictmoderate.youtube.com"); do |
791 | echo " local-data: \"www.youtube.com ${LOCAL_TTL} IN A ${address}\"" | |
792 | done | |
661ab153 MT |
793 | ) > /etc/unbound/safe-search.conf |
794 | } | |
795 | ||
d0e5f71f ML |
796 | case "$1" in |
797 | start) | |
80bc6022 MT |
798 | # Print a nicer messagen when unbound is already running |
799 | if pidofproc -s unbound; then | |
800 | statusproc /usr/sbin/unbound | |
801 | exit 0 | |
802 | fi | |
803 | ||
b8f5eda8 | 804 | eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings) |
d0e5f71f | 805 | |
b8f5eda8 | 806 | # Update configuration files |
b658a451 | 807 | write_tuning_conf |
b8f5eda8 | 808 | write_forward_conf |
661ab153 | 809 | write_safe_search_conf |
b8f5eda8 MT |
810 | |
811 | boot_mesg "Starting Unbound DNS Proxy..." | |
812 | loadproc /usr/sbin/unbound || exit $? | |
813 | ||
f75c279b AF |
814 | # Make own hostname resolveable |
815 | own_hostname | |
816 | ||
b8f5eda8 MT |
817 | # Update any known forwarding name servers |
818 | update_forwarders | |
36792be6 MT |
819 | |
820 | # Update hosts | |
821 | update_hosts | |
05478072 | 822 | |
68fac98a | 823 | fix_time_if_dns_fail |
b8f5eda8 | 824 | ;; |
d0e5f71f ML |
825 | |
826 | stop) | |
b8f5eda8 MT |
827 | boot_mesg "Stopping Unbound DNS Proxy..." |
828 | killproc /usr/sbin/unbound | |
829 | ;; | |
d0e5f71f ML |
830 | |
831 | restart) | |
b8f5eda8 MT |
832 | $0 stop |
833 | sleep 1 | |
834 | $0 start | |
835 | ;; | |
d0e5f71f ML |
836 | |
837 | status) | |
b8f5eda8 | 838 | statusproc /usr/sbin/unbound |
b8f5eda8 MT |
839 | ;; |
840 | ||
841 | update-forwarders) | |
cd812106 MT |
842 | # Do not try updating forwarders when unbound is not running |
843 | if ! pgrep unbound &>/dev/null; then | |
844 | exit 0 | |
845 | fi | |
846 | ||
b8f5eda8 | 847 | update_forwarders |
68fac98a | 848 | |
391e3390 AF |
849 | unbound-control flush_negative > /dev/null |
850 | unbound-control flush_bogus > /dev/null | |
851 | ||
68fac98a | 852 | fix_time_if_dns_fail |
b8f5eda8 | 853 | ;; |
d0e5f71f | 854 | |
3ec3329d AF |
855 | remove-forwarders) |
856 | # Do not try updating forwarders when unbound is not running | |
857 | if ! pgrep unbound &>/dev/null; then | |
858 | exit 0 | |
859 | fi | |
860 | ||
861 | remove_forwarders | |
862 | ||
863 | unbound-control flush_negative > /dev/null | |
864 | unbound-control flush_bogus > /dev/null | |
865 | ;; | |
866 | ||
867 | ||
b29c97b1 AF |
868 | test-name-server) |
869 | ns=${2} | |
870 | ||
871 | test_name_server ${ns} | |
872 | ret=${?} | |
873 | ||
874 | case "${ret}" in | |
875 | 0) | |
876 | echo "${ns} is validating" | |
877 | ;; | |
878 | 2) | |
879 | echo "${ns} is DNSSEC-aware" | |
880 | ;; | |
881 | 3) | |
882 | echo "${ns} is NOT DNSSEC-aware" | |
883 | ;; | |
884 | *) | |
885 | echo "Test failed for an unknown reason" | |
8f3034d0 | 886 | exit ${ret} |
b29c97b1 AF |
887 | ;; |
888 | esac | |
889 | ||
890 | if ns_supports_tcp ${ns}; then | |
891 | echo "${ns} supports TCP fallback" | |
892 | else | |
893 | echo "${ns} does not support TCP fallback" | |
894 | fi | |
895 | ||
8f3034d0 MT |
896 | edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) |
897 | if [ -n "${edns_buffer_size}" ]; then | |
898 | echo "EDNS buffer size for ${ns}: ${edns_buffer_size}" | |
899 | fi | |
900 | ||
b29c97b1 AF |
901 | exit ${ret} |
902 | ;; | |
903 | ||
043e7aa5 MT |
904 | resolve) |
905 | resolve "${2}" | |
906 | ;; | |
907 | ||
d0e5f71f | 908 | *) |
3ec3329d | 909 | echo "Usage: $0 {start|stop|restart|status|update-forwarders|remove-forwarders|test-name-server|resolve}" |
b8f5eda8 MT |
910 | exit 1 |
911 | ;; | |
d0e5f71f ML |
912 | esac |
913 | ||
914 | # End $rc_base/init.d/unbound |