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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 |
d0e5f71f | 17 | |
36792be6 MT |
18 | # Cache any local zones for 60 seconds |
19 | LOCAL_TTL=60 | |
20 | ||
b2f96a94 MT |
21 | # EDNS buffer size |
22 | EDNS_DEFAULT_BUFFER_SIZE=4096 | |
23 | ||
b8f5eda8 MT |
24 | # Load optional configuration |
25 | [ -e "/etc/sysconfig/unbound" ] && . /etc/sysconfig/unbound | |
d0e5f71f ML |
26 | |
27 | function cidr() { | |
28 | local cidr nbits IFS; | |
29 | IFS=. read -r i1 i2 i3 i4 <<< ${1} | |
30 | IFS=. read -r m1 m2 m3 m4 <<< ${2} | |
31 | cidr=$(printf "%d.%d.%d.%d\n" "$((i1 & m1))" "$((i2 & m2))" "$((i3 & m3))" "$((i4 & m4))") | |
32 | nbits=0 | |
33 | IFS=. | |
34 | for dec in $2 ; do | |
35 | case $dec in | |
36 | 255) let nbits+=8;; | |
37 | 254) let nbits+=7;; | |
38 | 252) let nbits+=6;; | |
39 | 248) let nbits+=5;; | |
40 | 240) let nbits+=4;; | |
41 | 224) let nbits+=3;; | |
42 | 192) let nbits+=2;; | |
43 | 128) let nbits+=1;; | |
44 | 0);; | |
45 | *) echo "Error: $dec is not recognised"; exit 1 | |
46 | esac | |
47 | done | |
48 | echo "${cidr}/${nbits}" | |
49 | } | |
50 | ||
f75c279b AF |
51 | ip_address_revptr() { |
52 | local addr=${1} | |
53 | ||
54 | local a1 a2 a3 a4 | |
55 | IFS=. read -r a1 a2 a3 a4 <<< ${addr} | |
56 | ||
57 | echo "${a4}.${a3}.${a2}.${a1}.in-addr.arpa" | |
58 | } | |
59 | ||
b8f5eda8 MT |
60 | read_name_servers() { |
61 | local i | |
62 | for i in 1 2; do | |
63 | echo "$(</var/ipfire/red/dns${i})" | |
682a6b2d | 64 | done 2>/dev/null | xargs echo |
b8f5eda8 MT |
65 | } |
66 | ||
67 | config_header() { | |
68 | echo "# This file is automatically generated and any changes" | |
69 | echo "# will be overwritten. DO NOT EDIT!" | |
70 | echo | |
71 | } | |
72 | ||
73 | update_forwarders() { | |
b29c97b1 AF |
74 | if [ "${USE_FORWARDERS}" = "1" -a -e "/var/ipfire/red/active" ]; then |
75 | local forwarders | |
76 | local broken_forwarders | |
77 | ||
78 | local ns | |
79 | for ns in $(read_name_servers); do | |
80 | test_name_server ${ns} &>/dev/null | |
81 | case "$?" in | |
82 | # Only use DNSSEC-validating or DNSSEC-aware name servers | |
83 | 0|2) | |
84 | forwarders="${forwarders} ${ns}" | |
85 | ;; | |
86 | *) | |
87 | broken_forwarders="${broken_forwarders} ${ns}" | |
88 | ;; | |
89 | esac | |
90 | done | |
91 | ||
8f3034d0 | 92 | # Determine EDNS buffer size |
b2f96a94 | 93 | local new_edns_buffer_size=${EDNS_DEFAULT_BUFFER_SIZE} |
8f3034d0 | 94 | |
b2f96a94 MT |
95 | for ns in ${forwarders}; do |
96 | local edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) | |
97 | if [ -n "${edns_buffer_size}" ]; then | |
98 | if [ ${edns_buffer_size} -lt ${new_edns_buffer_size} ]; then | |
99 | new_edns_buffer_size=${edns_buffer_size} | |
8f3034d0 | 100 | fi |
b2f96a94 MT |
101 | fi |
102 | done | |
103 | ||
104 | if [ ${new_edns_buffer_size} -lt ${EDNS_DEFAULT_BUFFER_SIZE} ]; then | |
105 | boot_mesg "EDNS buffer size reduced to ${new_edns_buffer_size}" ${WARNING} | |
106 | echo_warning | |
8f3034d0 MT |
107 | |
108 | unbound-control -q set_option edns-buffer-size: ${new_edns_buffer_size} | |
109 | fi | |
110 | ||
b29c97b1 AF |
111 | # Show warning for any broken upstream name servers |
112 | if [ -n "${broken_forwarders}" ]; then | |
113 | boot_mesg "Ignoring broken upstream name server(s): ${broken_forwarders:1}" ${WARNING} | |
114 | echo_warning | |
115 | fi | |
b8f5eda8 | 116 | |
e432689a | 117 | if [ -n "${forwarders}" ]; then |
b29c97b1 AF |
118 | boot_mesg "Configuring upstream name server(s): ${forwarders:1}" ${INFO} |
119 | echo_ok | |
b8f5eda8 | 120 | |
e432689a MT |
121 | # Make sure DNSSEC is activated |
122 | enable_dnssec | |
123 | ||
e24d6112 | 124 | echo "${forwarders}" > /var/ipfire/red/dns |
b29c97b1 AF |
125 | unbound-control -q forward ${forwarders} |
126 | return 0 | |
e432689a MT |
127 | |
128 | # In case we have found no working forwarders | |
129 | else | |
130 | # Test if the recursor mode is available | |
131 | if can_resolve_root +bufsize=${new_edns_buffer_size}; then | |
132 | # Make sure DNSSEC is activated | |
133 | enable_dnssec | |
134 | ||
135 | boot_mesg "Falling back to recursor mode" ${WARNING} | |
136 | echo_warning | |
137 | ||
138 | # If not, we set DNSSEC in permissive mode and allow using all recursors | |
139 | elif [ -n "${broken_forwarders}" ]; then | |
140 | disable_dnssec | |
141 | ||
142 | boot_mesg "DNSSEC has been set to permissive mode" ${FAILURE} | |
143 | echo_failure | |
144 | ||
145 | echo "${broken_forwarders}" > /var/ipfire/red/dns | |
146 | unbound-control -q forward ${broken_forwarders} | |
147 | return 0 | |
148 | fi | |
b29c97b1 | 149 | fi |
b8f5eda8 | 150 | fi |
b29c97b1 AF |
151 | |
152 | # If forwarders cannot be used we run in recursor mode | |
e24d6112 | 153 | echo "local recursor" > /var/ipfire/red/dns |
b29c97b1 | 154 | unbound-control -q forward off |
b8f5eda8 MT |
155 | } |
156 | ||
f75c279b AF |
157 | own_hostname() { |
158 | local hostname=$(hostname -f) | |
0d7ca700 | 159 | # 1.1.1.1 is reserved for unused green, skip this |
f75c279b AF |
160 | if [ -n "${GREEN_ADDRESS}" -a "${GREEN_ADDRESS}" != "1.1.1.1" ]; then |
161 | unbound-control -q local_data "${hostname} ${LOCAL_TTL} IN A ${GREEN_ADDRESS}" | |
162 | fi | |
163 | ||
164 | local address | |
165 | for address in ${GREEN_ADDRESS} ${BLUE_ADDRESS} ${ORANGE_ADDRESS}; do | |
166 | [ -n "${address}" ] || continue | |
167 | [ "${address}" = "1.1.1.1" ] && continue | |
168 | ||
169 | address=$(ip_address_revptr ${address}) | |
170 | unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${hostname}" | |
171 | done | |
172 | } | |
173 | ||
36792be6 MT |
174 | update_hosts() { |
175 | local enabled address hostname domainname | |
176 | ||
177 | while IFS="," read -r enabled address hostname domainname; do | |
178 | [ "${enabled}" = "on" ] || continue | |
179 | ||
180 | # Build FQDN | |
181 | local fqdn="${hostname}.${domainname}" | |
182 | ||
183 | unbound-control -q local_data "${fqdn} ${LOCAL_TTL} IN A ${address}" | |
f75c279b | 184 | |
868d2a1f MT |
185 | # Skip reverse resolution if the address equals the GREEN address |
186 | [ "${address}" = "${GREEN_ADDRESS}" ] && continue | |
187 | ||
f75c279b AF |
188 | # Add RDNS |
189 | address=$(ip_address_revptr ${address}) | |
190 | unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${fqdn}" | |
36792be6 MT |
191 | done < /var/ipfire/main/hosts |
192 | } | |
193 | ||
b8f5eda8 MT |
194 | write_forward_conf() { |
195 | ( | |
196 | config_header | |
197 | ||
7ebc0a16 | 198 | local insecure_zones="${INSECURE_ZONES}" |
a6dcc5bb | 199 | |
1ececb67 MT |
200 | local enabled zone server servers remark disable_dnssec rest |
201 | while IFS="," read -r enabled zone servers remark disable_dnssec rest; do | |
b8f5eda8 MT |
202 | # Line must be enabled. |
203 | [ "${enabled}" = "on" ] || continue | |
204 | ||
a6dcc5bb MT |
205 | # Zones that end with .local are commonly used for internal |
206 | # zones and therefore not signed | |
207 | case "${zone}" in | |
208 | *.local) | |
209 | insecure_zones="${insecure_zones} ${zone}" | |
210 | ;; | |
1ececb67 MT |
211 | *) |
212 | if [ "${disable_dnssec}" = "on" ]; then | |
213 | insecure_zones="${insecure_zones} ${zone}" | |
214 | fi | |
215 | ;; | |
a6dcc5bb MT |
216 | esac |
217 | ||
c7e41255 MT |
218 | # Reverse-lookup zones must be stubs |
219 | case "${zone}" in | |
220 | *.in-addr.arpa) | |
221 | echo "stub-zone:" | |
9f099932 | 222 | echo " name: ${zone}" |
c9ae511e | 223 | for server in ${servers//|/ }; do |
f33d2897 MT |
224 | if [[ ${server} =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then |
225 | echo " stub-addr: ${server}" | |
226 | else | |
227 | echo " stub-host: ${server}" | |
228 | fi | |
c9ae511e | 229 | done |
c7e41255 MT |
230 | echo |
231 | echo "server:" | |
9f099932 | 232 | echo " local-zone: \"${zone}\" transparent" |
c7e41255 MT |
233 | echo |
234 | ;; | |
235 | *) | |
236 | echo "forward-zone:" | |
9f099932 | 237 | echo " name: ${zone}" |
c9ae511e | 238 | for server in ${servers//|/ }; do |
f33d2897 MT |
239 | if [[ ${server} =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then |
240 | echo " forward-addr: ${server}" | |
241 | else | |
242 | echo " forward-host: ${server}" | |
243 | fi | |
c9ae511e | 244 | done |
c7e41255 MT |
245 | echo |
246 | ;; | |
247 | esac | |
b8f5eda8 | 248 | done < /var/ipfire/dnsforward/config |
a6dcc5bb MT |
249 | |
250 | if [ -n "${insecure_zones}" ]; then | |
251 | echo "server:" | |
252 | ||
253 | for zone in ${insecure_zones}; do | |
254 | echo " domain-insecure: ${zone}" | |
255 | done | |
256 | fi | |
b8f5eda8 MT |
257 | ) > /etc/unbound/forward.conf |
258 | } | |
259 | ||
b658a451 MT |
260 | write_tuning_conf() { |
261 | # https://www.unbound.net/documentation/howto_optimise.html | |
262 | ||
263 | # Determine number of online processors | |
264 | local processors=$(getconf _NPROCESSORS_ONLN) | |
265 | ||
266 | # Determine number of slabs | |
267 | local slabs=1 | |
268 | while [ ${slabs} -lt ${processors} ]; do | |
269 | slabs=$(( ${slabs} * 2 )) | |
270 | done | |
271 | ||
272 | # Determine amount of system memory | |
273 | local mem=$(get_memory_amount) | |
274 | ||
275 | # In the worst case scenario, unbound can use double the | |
276 | # amount of memory allocated to a cache due to malloc overhead | |
277 | ||
4a0d69ca MT |
278 | # Even larger systems with more than 8GB of RAM |
279 | if [ ${mem} -ge 8192 ]; then | |
280 | mem=1024 | |
281 | ||
282 | # Extra large systems with more than 4GB of RAM | |
283 | elif [ ${mem} -ge 4096 ]; then | |
284 | mem=512 | |
285 | ||
b658a451 | 286 | # Large systems with more than 2GB of RAM |
4a0d69ca | 287 | elif [ ${mem} -ge 2048 ]; then |
128db1a3 | 288 | mem=256 |
b658a451 | 289 | |
4a0d69ca MT |
290 | # Medium systems with more than 1GB of RAM |
291 | elif [ ${mem} -ge 1024 ]; then | |
292 | mem=128 | |
293 | ||
b658a451 MT |
294 | # Small systems with less than 256MB of RAM |
295 | elif [ ${mem} -le 256 ]; then | |
128db1a3 | 296 | mem=16 |
b658a451 MT |
297 | |
298 | # Everything else | |
299 | else | |
128db1a3 | 300 | mem=64 |
b658a451 MT |
301 | fi |
302 | ||
303 | ( | |
304 | config_header | |
305 | ||
306 | # We run one thread per processor | |
307 | echo "num-threads: ${processors}" | |
5012e53c | 308 | echo "so-reuseport: yes" |
b658a451 MT |
309 | |
310 | # Adjust number of slabs | |
311 | echo "infra-cache-slabs: ${slabs}" | |
312 | echo "key-cache-slabs: ${slabs}" | |
313 | echo "msg-cache-slabs: ${slabs}" | |
314 | echo "rrset-cache-slabs: ${slabs}" | |
315 | ||
316 | # Slice up the cache | |
317 | echo "rrset-cache-size: $(( ${mem} / 2 ))m" | |
318 | echo "msg-cache-size: $(( ${mem} / 4 ))m" | |
319 | echo "key-cache-size: $(( ${mem} / 4 ))m" | |
0a7dca2c MT |
320 | |
321 | # Increase parallel queries | |
322 | echo "outgoing-range: 8192" | |
323 | echo "num-queries-per-thread: 4096" | |
c20b2009 MT |
324 | |
325 | # Use larger send/receive buffers | |
326 | echo "so-sndbuf: 4m" | |
327 | echo "so-rcvbuf: 4m" | |
b658a451 MT |
328 | ) > /etc/unbound/tuning.conf |
329 | } | |
330 | ||
331 | get_memory_amount() { | |
332 | local key val unit | |
333 | ||
334 | while read -r key val unit; do | |
335 | case "${key}" in | |
336 | MemTotal:*) | |
337 | # Convert to MB | |
338 | echo "$(( ${val} / 1024 ))" | |
339 | break | |
340 | ;; | |
341 | esac | |
342 | done < /proc/meminfo | |
343 | } | |
b8f5eda8 | 344 | |
b29c97b1 AF |
345 | test_name_server() { |
346 | local ns=${1} | |
8f3034d0 | 347 | local args |
b29c97b1 AF |
348 | |
349 | # Return codes: | |
350 | # 0 DNSSEC validating | |
351 | # 1 Error: unreachable, etc. | |
352 | # 2 DNSSEC aware | |
353 | # 3 NOT DNSSEC-aware | |
354 | ||
355 | # Exit when the server is not reachable | |
356 | ns_is_online ${ns} || return 1 | |
357 | ||
8f3034d0 MT |
358 | # Determine the maximum edns buffer size that works |
359 | local edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) | |
360 | if [ -n "${edns_buffer_size}" ]; then | |
361 | args="${args} +bufsize=${edns_buffer_size}" | |
362 | fi | |
363 | ||
b29c97b1 AF |
364 | local errors |
365 | for rr in DNSKEY DS RRSIG; do | |
8f3034d0 | 366 | if ! ns_forwards_${rr} ${ns} ${args}; then |
b29c97b1 AF |
367 | errors="${errors} ${rr}" |
368 | fi | |
369 | done | |
370 | ||
371 | if [ -n "${errors}" ]; then | |
372 | echo >&2 "Unable to retrieve the following resource records from ${ns}: ${errors:1}" | |
373 | return 3 | |
374 | fi | |
375 | ||
8f3034d0 | 376 | if ns_is_validating ${ns} ${args}; then |
2aa15dee MT |
377 | # Return 0 if validating |
378 | return 0 | |
379 | else | |
380 | # Is DNSSEC-aware | |
381 | return 2 | |
382 | fi | |
b29c97b1 AF |
383 | } |
384 | ||
385 | # Sends an A query to the nameserver w/o DNSSEC | |
386 | ns_is_online() { | |
387 | local ns=${1} | |
8f3034d0 | 388 | shift |
b29c97b1 | 389 | |
8f3034d0 | 390 | dig @${ns} +nodnssec A ${TEST_DOMAIN} $@ >/dev/null |
b29c97b1 AF |
391 | } |
392 | ||
393 | # Resolving ${TEST_DOMAIN_FAIL} will fail if the nameserver is validating | |
394 | ns_is_validating() { | |
395 | local ns=${1} | |
8f3034d0 | 396 | shift |
b29c97b1 | 397 | |
438da7e0 PM |
398 | if ! dig @${ns} A ${TEST_DOMAIN_FAIL} $@ | grep -q SERVFAIL; then |
399 | return 1 | |
400 | else | |
401 | # Determine if NS replies with "ad" data flag if DNSSEC enabled | |
402 | dig @${ns} +dnssec SOA ${TEST_DOMAIN} $@ | awk -F: '/\;\;\ flags\:/ { s=1; if (/\ ad/) s=0; exit s }' | |
403 | fi | |
b29c97b1 AF |
404 | } |
405 | ||
406 | # Checks if we can retrieve the DNSKEY for this domain. | |
407 | # dig will print the SOA if nothing was found | |
408 | ns_forwards_DNSKEY() { | |
409 | local ns=${1} | |
8f3034d0 | 410 | shift |
b29c97b1 | 411 | |
8f3034d0 | 412 | dig @${ns} DNSKEY ${TEST_DOMAIN} $@ | grep -qv SOA |
b29c97b1 AF |
413 | } |
414 | ||
415 | ns_forwards_DS() { | |
416 | local ns=${1} | |
8f3034d0 | 417 | shift |
b29c97b1 | 418 | |
8f3034d0 | 419 | dig @${ns} DS ${TEST_DOMAIN} $@ | grep -qv SOA |
b29c97b1 AF |
420 | } |
421 | ||
422 | ns_forwards_RRSIG() { | |
423 | local ns=${1} | |
8f3034d0 | 424 | shift |
b29c97b1 | 425 | |
8f3034d0 | 426 | dig @${ns} +dnssec A ${TEST_DOMAIN} $@ | grep -q RRSIG |
b29c97b1 AF |
427 | } |
428 | ||
429 | ns_supports_tcp() { | |
430 | local ns=${1} | |
8f3034d0 MT |
431 | shift |
432 | ||
433 | dig @${ns} +tcp A ${TEST_DOMAIN} $@ >/dev/null || return 1 | |
434 | } | |
435 | ||
436 | ns_determine_edns_buffer_size() { | |
437 | local ns=${1} | |
438 | shift | |
439 | ||
440 | local b | |
441 | for b in 4096 2048 1500 1480 1464 1400 1280 512; do | |
442 | if dig @${ns} +dnssec +bufsize=${b} A ${TEST_DOMAIN} $@ >/dev/null; then | |
443 | echo "${b}" | |
444 | return 0 | |
445 | fi | |
446 | done | |
b29c97b1 | 447 | |
8f3034d0 | 448 | return 1 |
b29c97b1 AF |
449 | } |
450 | ||
e432689a MT |
451 | get_root_nameservers() { |
452 | while read -r hostname ttl record address; do | |
453 | # Searching for A records | |
454 | [ "${record}" = "A" ] || continue | |
455 | ||
456 | echo "${address}" | |
457 | done < /etc/unbound/root.hints | |
458 | } | |
459 | ||
460 | can_resolve_root() { | |
461 | local ns | |
462 | for ns in $(get_root_nameservers); do | |
463 | if dig @${ns} +dnssec SOA . $@ >/dev/null; then | |
464 | return 0 | |
465 | fi | |
466 | done | |
467 | ||
468 | # none of the servers was reachable | |
469 | return 1 | |
470 | } | |
471 | ||
472 | enable_dnssec() { | |
473 | local status=$(unbound-control get_option val-permissive-mode) | |
474 | ||
183b23b5 MT |
475 | # Log DNSSEC status |
476 | echo "on" > /var/ipfire/red/dnssec-status | |
477 | ||
094a27c8 MT |
478 | # Don't do anything if DNSSEC is already activated |
479 | [ "${status}" = "no" ] && return 0 | |
480 | ||
e432689a MT |
481 | # Activate DNSSEC and flush cache with any stale and unvalidated data |
482 | unbound-control -q set_option val-permissive-mode: no | |
483 | unbound-control -q flush_zone . | |
484 | } | |
485 | ||
486 | disable_dnssec() { | |
183b23b5 MT |
487 | # Log DNSSEC status |
488 | echo "off" > /var/ipfire/red/dnssec-status | |
489 | ||
e432689a MT |
490 | unbound-control -q set_option val-permissive-mode: yes |
491 | } | |
492 | ||
68fac98a AF |
493 | fix_time_if_dns_fail() { |
494 | # If DNS still not work try to init ntp with | |
495 | # hardcoded ntp.ipfire.org (81.3.27.46) | |
496 | if [ -e /var/ipfire/red/active ]; then | |
497 | host 0.ipfire.pool.ntp.org > /dev/null 2>&1 | |
498 | if [ "${?}" != "0" ]; then | |
3eeff87f | 499 | boot_mesg "DNS still not functioning... Trying to sync time with ntp.ipfire.org (81.3.27.46)..." |
68fac98a AF |
500 | loadproc /usr/local/bin/settime 81.3.27.46 |
501 | fi | |
502 | fi | |
503 | } | |
504 | ||
d0e5f71f ML |
505 | case "$1" in |
506 | start) | |
80bc6022 MT |
507 | # Print a nicer messagen when unbound is already running |
508 | if pidofproc -s unbound; then | |
509 | statusproc /usr/sbin/unbound | |
510 | exit 0 | |
511 | fi | |
512 | ||
b8f5eda8 | 513 | eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings) |
d0e5f71f | 514 | |
b8f5eda8 | 515 | # Update configuration files |
b658a451 | 516 | write_tuning_conf |
b8f5eda8 MT |
517 | write_forward_conf |
518 | ||
519 | boot_mesg "Starting Unbound DNS Proxy..." | |
520 | loadproc /usr/sbin/unbound || exit $? | |
521 | ||
f75c279b AF |
522 | # Make own hostname resolveable |
523 | own_hostname | |
524 | ||
b8f5eda8 MT |
525 | # Update any known forwarding name servers |
526 | update_forwarders | |
36792be6 MT |
527 | |
528 | # Update hosts | |
529 | update_hosts | |
05478072 | 530 | |
68fac98a | 531 | fix_time_if_dns_fail |
b8f5eda8 | 532 | ;; |
d0e5f71f ML |
533 | |
534 | stop) | |
b8f5eda8 MT |
535 | boot_mesg "Stopping Unbound DNS Proxy..." |
536 | killproc /usr/sbin/unbound | |
537 | ;; | |
d0e5f71f ML |
538 | |
539 | restart) | |
b8f5eda8 MT |
540 | $0 stop |
541 | sleep 1 | |
542 | $0 start | |
543 | ;; | |
d0e5f71f ML |
544 | |
545 | status) | |
b8f5eda8 | 546 | statusproc /usr/sbin/unbound |
b8f5eda8 MT |
547 | ;; |
548 | ||
549 | update-forwarders) | |
cd812106 MT |
550 | # Do not try updating forwarders when unbound is not running |
551 | if ! pgrep unbound &>/dev/null; then | |
552 | exit 0 | |
553 | fi | |
554 | ||
b8f5eda8 | 555 | update_forwarders |
68fac98a | 556 | |
391e3390 AF |
557 | unbound-control flush_negative > /dev/null |
558 | unbound-control flush_bogus > /dev/null | |
559 | ||
68fac98a | 560 | fix_time_if_dns_fail |
b8f5eda8 | 561 | ;; |
d0e5f71f | 562 | |
b29c97b1 AF |
563 | test-name-server) |
564 | ns=${2} | |
565 | ||
566 | test_name_server ${ns} | |
567 | ret=${?} | |
568 | ||
569 | case "${ret}" in | |
570 | 0) | |
571 | echo "${ns} is validating" | |
572 | ;; | |
573 | 2) | |
574 | echo "${ns} is DNSSEC-aware" | |
575 | ;; | |
576 | 3) | |
577 | echo "${ns} is NOT DNSSEC-aware" | |
578 | ;; | |
579 | *) | |
580 | echo "Test failed for an unknown reason" | |
8f3034d0 | 581 | exit ${ret} |
b29c97b1 AF |
582 | ;; |
583 | esac | |
584 | ||
585 | if ns_supports_tcp ${ns}; then | |
586 | echo "${ns} supports TCP fallback" | |
587 | else | |
588 | echo "${ns} does not support TCP fallback" | |
589 | fi | |
590 | ||
8f3034d0 MT |
591 | edns_buffer_size=$(ns_determine_edns_buffer_size ${ns}) |
592 | if [ -n "${edns_buffer_size}" ]; then | |
593 | echo "EDNS buffer size for ${ns}: ${edns_buffer_size}" | |
594 | fi | |
595 | ||
b29c97b1 AF |
596 | exit ${ret} |
597 | ;; | |
598 | ||
d0e5f71f | 599 | *) |
b29c97b1 | 600 | echo "Usage: $0 {start|stop|restart|status|update-forwarders|test-name-server}" |
b8f5eda8 MT |
601 | exit 1 |
602 | ;; | |
d0e5f71f ML |
603 | esac |
604 | ||
605 | # End $rc_base/init.d/unbound |