2 * daemon/cachedump.c - dump the cache to text format.
4 * Copyright (c) 2008, NLnet Labs. All rights reserved.
6 * This software is open source.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
15 * Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
19 * Neither the name of the NLNET LABS nor the names of its contributors may
20 * be used to endorse or promote products derived from this software without
21 * specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
29 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 * This file contains functions to read and write the cache(s)
43 #include <openssl/ssl.h>
44 #include "daemon/cachedump.h"
45 #include "daemon/remote.h"
46 #include "daemon/worker.h"
47 #include "services/cache/rrset.h"
48 #include "services/cache/dns.h"
49 #include "services/cache/infra.h"
50 #include "util/data/msgreply.h"
51 #include "util/regional.h"
52 #include "util/net_help.h"
53 #include "util/data/dname.h"
54 #include "iterator/iterator.h"
55 #include "iterator/iter_delegpt.h"
56 #include "iterator/iter_utils.h"
57 #include "iterator/iter_fwd.h"
58 #include "iterator/iter_hints.h"
59 #include "sldns/sbuffer.h"
60 #include "sldns/wire2str.h"
61 #include "sldns/str2wire.h"
63 /** dump one rrset zonefile line */
65 dump_rrset_line(RES* ssl, struct ub_packed_rrset_key* k, time_t now, size_t i)
68 if(!packed_rr_to_string(k, i, now, s, sizeof(s))) {
69 return ssl_printf(ssl, "BADRR\n");
71 return ssl_printf(ssl, "%s", s);
74 /** dump rrset key and data info */
76 dump_rrset(RES* ssl, struct ub_packed_rrset_key* k,
77 struct packed_rrset_data* d, time_t now)
80 /* rd lock held by caller */
81 if(!k || !d) return 1;
82 if(k->id == 0) return 1; /* deleted */
83 if(d->ttl < now) return 1; /* expired */
86 if(!ssl_printf(ssl, ";rrset%s " ARG_LL "d %u %u %d %d\n",
87 (k->rk.flags & PACKED_RRSET_NSEC_AT_APEX)?" nsec_apex":"",
88 (long long)(d->ttl - now),
89 (unsigned)d->count, (unsigned)d->rrsig_count,
90 (int)d->trust, (int)d->security
93 for(i=0; i<d->count + d->rrsig_count; i++) {
94 if(!dump_rrset_line(ssl, k, now, i))
100 /** dump lruhash rrset cache */
102 dump_rrset_lruhash(RES* ssl, struct lruhash* h, time_t now)
104 struct lruhash_entry* e;
105 /* lruhash already locked by caller */
106 /* walk in order of lru; best first */
107 for(e=h->lru_start; e; e = e->lru_next) {
108 lock_rw_rdlock(&e->lock);
109 if(!dump_rrset(ssl, (struct ub_packed_rrset_key*)e->key,
110 (struct packed_rrset_data*)e->data, now)) {
111 lock_rw_unlock(&e->lock);
114 lock_rw_unlock(&e->lock);
119 /** dump rrset cache */
121 dump_rrset_cache(RES* ssl, struct worker* worker)
123 struct rrset_cache* r = worker->env.rrset_cache;
125 if(!ssl_printf(ssl, "START_RRSET_CACHE\n")) return 0;
126 for(slab=0; slab<r->table.size; slab++) {
127 lock_quick_lock(&r->table.array[slab]->lock);
128 if(!dump_rrset_lruhash(ssl, r->table.array[slab],
130 lock_quick_unlock(&r->table.array[slab]->lock);
133 lock_quick_unlock(&r->table.array[slab]->lock);
135 return ssl_printf(ssl, "END_RRSET_CACHE\n");
138 /** dump message to rrset reference */
140 dump_msg_ref(RES* ssl, struct ub_packed_rrset_key* k)
143 nm = sldns_wire2str_dname(k->rk.dname, k->rk.dname_len);
144 tp = sldns_wire2str_type(ntohs(k->rk.type));
145 cl = sldns_wire2str_class(ntohs(k->rk.rrset_class));
146 if(!nm || !cl || !tp) {
150 return ssl_printf(ssl, "BADREF\n");
152 if(!ssl_printf(ssl, "%s %s %s %d\n", nm, cl, tp, (int)k->rk.flags)) {
165 /** dump message entry */
167 dump_msg(RES* ssl, struct query_info* k, struct reply_info* d,
172 if(!k || !d) return 1;
173 if(d->ttl < now) return 1; /* expired */
175 nm = sldns_wire2str_dname(k->qname, k->qname_len);
176 tp = sldns_wire2str_type(k->qtype);
177 cl = sldns_wire2str_class(k->qclass);
178 if(!nm || !tp || !cl) {
182 return 1; /* skip this entry */
184 if(!rrset_array_lock(d->ref, d->rrset_count, now)) {
185 /* rrsets have timed out or do not exist */
189 return 1; /* skip this entry */
193 if(!ssl_printf(ssl, "msg %s %s %s %d %d " ARG_LL "d %d %u %u %u\n",
195 (int)d->flags, (int)d->qdcount,
196 (long long)(d->ttl-now), (int)d->security,
197 (unsigned)d->an_numrrsets,
198 (unsigned)d->ns_numrrsets,
199 (unsigned)d->ar_numrrsets)) {
203 rrset_array_unlock(d->ref, d->rrset_count);
210 for(i=0; i<d->rrset_count; i++) {
211 if(!dump_msg_ref(ssl, d->rrsets[i])) {
212 rrset_array_unlock(d->ref, d->rrset_count);
216 rrset_array_unlock(d->ref, d->rrset_count);
221 /** copy msg to worker pad */
223 copy_msg(struct regional* region, struct lruhash_entry* e,
224 struct query_info** k, struct reply_info** d)
226 struct reply_info* rep = (struct reply_info*)e->data;
227 if(rep->rrset_count > RR_COUNT_MAX)
228 return 0; /* to protect against integer overflow */
229 *d = (struct reply_info*)regional_alloc_init(region, e->data,
230 sizeof(struct reply_info) +
231 sizeof(struct rrset_ref) * (rep->rrset_count-1) +
232 sizeof(struct ub_packed_rrset_key*) * rep->rrset_count);
235 (*d)->rrsets = (struct ub_packed_rrset_key**)(void *)(
236 (uint8_t*)(&((*d)->ref[0])) +
237 sizeof(struct rrset_ref) * rep->rrset_count);
238 *k = (struct query_info*)regional_alloc_init(region,
239 e->key, sizeof(struct query_info));
242 (*k)->qname = regional_alloc_init(region,
243 (*k)->qname, (*k)->qname_len);
244 return (*k)->qname != NULL;
247 /** dump lruhash msg cache */
249 dump_msg_lruhash(RES* ssl, struct worker* worker, struct lruhash* h)
251 struct lruhash_entry* e;
252 struct query_info* k;
253 struct reply_info* d;
255 /* lruhash already locked by caller */
256 /* walk in order of lru; best first */
257 for(e=h->lru_start; e; e = e->lru_next) {
258 regional_free_all(worker->scratchpad);
259 lock_rw_rdlock(&e->lock);
260 /* make copy of rrset in worker buffer */
261 if(!copy_msg(worker->scratchpad, e, &k, &d)) {
262 lock_rw_unlock(&e->lock);
265 lock_rw_unlock(&e->lock);
266 /* release lock so we can lookup the rrset references
267 * in the rrset cache */
268 if(!dump_msg(ssl, k, d, *worker->env.now)) {
275 /** dump msg cache */
277 dump_msg_cache(RES* ssl, struct worker* worker)
279 struct slabhash* sh = worker->env.msg_cache;
281 if(!ssl_printf(ssl, "START_MSG_CACHE\n")) return 0;
282 for(slab=0; slab<sh->size; slab++) {
283 lock_quick_lock(&sh->array[slab]->lock);
284 if(!dump_msg_lruhash(ssl, worker, sh->array[slab])) {
285 lock_quick_unlock(&sh->array[slab]->lock);
288 lock_quick_unlock(&sh->array[slab]->lock);
290 return ssl_printf(ssl, "END_MSG_CACHE\n");
294 dump_cache(RES* ssl, struct worker* worker)
296 if(!dump_rrset_cache(ssl, worker))
298 if(!dump_msg_cache(ssl, worker))
300 return ssl_printf(ssl, "EOF\n");
303 /** read a line from ssl into buffer */
305 ssl_read_buf(RES* ssl, sldns_buffer* buf)
307 return ssl_read_line(ssl, (char*)sldns_buffer_begin(buf),
308 sldns_buffer_capacity(buf));
311 /** check fixed text on line */
313 read_fixed(RES* ssl, sldns_buffer* buf, const char* str)
315 if(!ssl_read_buf(ssl, buf)) return 0;
316 return (strcmp((char*)sldns_buffer_begin(buf), str) == 0);
319 /** load an RR into rrset */
321 load_rr(RES* ssl, sldns_buffer* buf, struct regional* region,
322 struct ub_packed_rrset_key* rk, struct packed_rrset_data* d,
323 unsigned int i, int is_rrsig, int* go_on, time_t now)
325 uint8_t rr[LDNS_RR_BUF_SIZE];
326 size_t rr_len = sizeof(rr), dname_len = 0;
330 if(!ssl_read_buf(ssl, buf))
332 if(strncmp((char*)sldns_buffer_begin(buf), "BADRR\n", 6) == 0) {
336 status = sldns_str2wire_rr_buf((char*)sldns_buffer_begin(buf), rr,
337 &rr_len, &dname_len, 3600, NULL, 0, NULL, 0);
339 log_warn("error cannot parse rr: %s: %s",
340 sldns_get_errorstr_parse(status),
341 (char*)sldns_buffer_begin(buf));
344 if(is_rrsig && sldns_wirerr_get_type(rr, rr_len, dname_len)
345 != LDNS_RR_TYPE_RRSIG) {
346 log_warn("error expected rrsig but got %s",
347 (char*)sldns_buffer_begin(buf));
351 /* convert ldns rr into packed_rr */
352 d->rr_ttl[i] = (time_t)sldns_wirerr_get_ttl(rr, rr_len, dname_len) + now;
353 sldns_buffer_clear(buf);
354 d->rr_len[i] = sldns_wirerr_get_rdatalen(rr, rr_len, dname_len)+2;
355 d->rr_data[i] = (uint8_t*)regional_alloc_init(region,
356 sldns_wirerr_get_rdatawl(rr, rr_len, dname_len), d->rr_len[i]);
358 log_warn("error out of memory");
362 /* if first entry, fill the key structure */
364 rk->rk.type = htons(sldns_wirerr_get_type(rr, rr_len, dname_len));
365 rk->rk.rrset_class = htons(sldns_wirerr_get_class(rr, rr_len, dname_len));
366 rk->rk.dname_len = dname_len;
367 rk->rk.dname = regional_alloc_init(region, rr, dname_len);
369 log_warn("error out of memory");
377 /** move entry into cache */
379 move_into_cache(struct ub_packed_rrset_key* k,
380 struct packed_rrset_data* d, struct worker* worker)
382 struct ub_packed_rrset_key* ak;
383 struct packed_rrset_data* ad;
384 size_t s, i, num = d->count + d->rrsig_count;
385 struct rrset_ref ref;
388 ak = alloc_special_obtain(&worker->alloc);
390 log_warn("error out of memory");
393 ak->entry.data = NULL;
395 ak->entry.hash = rrset_key_hash(&k->rk);
396 ak->rk.dname = (uint8_t*)memdup(k->rk.dname, k->rk.dname_len);
398 log_warn("error out of memory");
399 ub_packed_rrset_parsedelete(ak, &worker->alloc);
402 s = sizeof(*ad) + (sizeof(size_t) + sizeof(uint8_t*) +
403 sizeof(time_t))* num;
406 ad = (struct packed_rrset_data*)malloc(s);
408 log_warn("error out of memory");
409 ub_packed_rrset_parsedelete(ak, &worker->alloc);
413 memmove(p, d, sizeof(*ad));
415 memmove(p, &d->rr_len[0], sizeof(size_t)*num);
416 p += sizeof(size_t)*num;
417 memmove(p, &d->rr_data[0], sizeof(uint8_t*)*num);
418 p += sizeof(uint8_t*)*num;
419 memmove(p, &d->rr_ttl[0], sizeof(time_t)*num);
420 p += sizeof(time_t)*num;
421 for(i=0; i<num; i++) {
422 memmove(p, d->rr_data[i], d->rr_len[i]);
425 packed_rrset_ptr_fixup(ad);
431 (void)rrset_cache_update(worker->env.rrset_cache, &ref,
432 &worker->alloc, *worker->env.now);
436 /** load an rrset entry */
438 load_rrset(RES* ssl, sldns_buffer* buf, struct worker* worker)
440 char* s = (char*)sldns_buffer_begin(buf);
441 struct regional* region = worker->scratchpad;
442 struct ub_packed_rrset_key* rk;
443 struct packed_rrset_data* d;
444 unsigned int rr_count, rrsig_count, trust, security;
448 regional_free_all(region);
450 rk = (struct ub_packed_rrset_key*)regional_alloc_zero(region,
452 d = (struct packed_rrset_data*)regional_alloc_zero(region, sizeof(*d));
454 log_warn("error out of memory");
458 if(strncmp(s, ";rrset", 6) != 0) {
459 log_warn("error expected ';rrset' but got %s", s);
463 if(strncmp(s, " nsec_apex", 10) == 0) {
465 rk->rk.flags |= PACKED_RRSET_NSEC_AT_APEX;
467 if(sscanf(s, " " ARG_LL "d %u %u %u %u", &ttl, &rr_count, &rrsig_count,
468 &trust, &security) != 5) {
469 log_warn("error bad rrset spec %s", s);
472 if(rr_count == 0 && rrsig_count == 0) {
473 log_warn("bad rrset without contents");
476 if(rr_count > RR_COUNT_MAX || rrsig_count > RR_COUNT_MAX) {
477 log_warn("bad rrset with too many rrs");
480 d->count = (size_t)rr_count;
481 d->rrsig_count = (size_t)rrsig_count;
482 d->security = (enum sec_status)security;
483 d->trust = (enum rrset_trust)trust;
484 d->ttl = (time_t)ttl + *worker->env.now;
486 d->rr_len = regional_alloc_zero(region,
487 sizeof(size_t)*(d->count+d->rrsig_count));
488 d->rr_ttl = regional_alloc_zero(region,
489 sizeof(time_t)*(d->count+d->rrsig_count));
490 d->rr_data = regional_alloc_zero(region,
491 sizeof(uint8_t*)*(d->count+d->rrsig_count));
492 if(!d->rr_len || !d->rr_ttl || !d->rr_data) {
493 log_warn("error out of memory");
497 /* read the rr's themselves */
498 for(i=0; i<rr_count; i++) {
499 if(!load_rr(ssl, buf, region, rk, d, i, 0,
500 &go_on, *worker->env.now)) {
501 log_warn("could not read rr %u", i);
505 for(i=0; i<rrsig_count; i++) {
506 if(!load_rr(ssl, buf, region, rk, d, i+rr_count, 1,
507 &go_on, *worker->env.now)) {
508 log_warn("could not read rrsig %u", i);
513 /* skip this entry */
517 return move_into_cache(rk, d, worker);
520 /** load rrset cache */
522 load_rrset_cache(RES* ssl, struct worker* worker)
524 sldns_buffer* buf = worker->env.scratch_buffer;
525 if(!read_fixed(ssl, buf, "START_RRSET_CACHE")) return 0;
526 while(ssl_read_buf(ssl, buf) &&
527 strcmp((char*)sldns_buffer_begin(buf), "END_RRSET_CACHE")!=0) {
528 if(!load_rrset(ssl, buf, worker))
534 /** read qinfo from next three words */
536 load_qinfo(char* str, struct query_info* qinfo, struct regional* region)
538 /* s is part of the buf */
540 uint8_t rr[LDNS_RR_BUF_SIZE];
541 size_t rr_len = sizeof(rr), dname_len = 0;
544 /* skip three words */
545 s = strchr(str, ' ');
546 if(s) s = strchr(s+1, ' ');
547 if(s) s = strchr(s+1, ' ');
549 log_warn("error line too short, %s", str);
556 status = sldns_str2wire_rr_question_buf(str, rr, &rr_len, &dname_len,
559 log_warn("error cannot parse: %s %s",
560 sldns_get_errorstr_parse(status), str);
563 qinfo->qtype = sldns_wirerr_get_type(rr, rr_len, dname_len);
564 qinfo->qclass = sldns_wirerr_get_class(rr, rr_len, dname_len);
565 qinfo->qname_len = dname_len;
566 qinfo->qname = (uint8_t*)regional_alloc_init(region, rr, dname_len);
567 qinfo->local_alias = NULL;
569 log_warn("error out of memory");
576 /** load a msg rrset reference */
578 load_ref(RES* ssl, sldns_buffer* buf, struct worker* worker,
579 struct regional *region, struct ub_packed_rrset_key** rrset,
582 char* s = (char*)sldns_buffer_begin(buf);
583 struct query_info qinfo;
585 struct ub_packed_rrset_key* k;
588 if(!ssl_read_buf(ssl, buf))
590 if(strncmp(s, "BADREF", 6) == 0) {
591 *go_on = 0; /* its bad, skip it and skip message */
595 s = load_qinfo(s, &qinfo, region);
599 if(sscanf(s, " %u", &flags) != 1) {
600 log_warn("error cannot parse flags: %s", s);
604 /* lookup in cache */
605 k = rrset_cache_lookup(worker->env.rrset_cache, qinfo.qname,
606 qinfo.qname_len, qinfo.qtype, qinfo.qclass,
607 (uint32_t)flags, *worker->env.now, 0);
609 /* not found or expired */
614 /* store in result */
615 *rrset = packed_rrset_copy_region(k, region, *worker->env.now);
616 lock_rw_unlock(&k->entry.lock);
618 return (*rrset != NULL);
621 /** load a msg entry */
623 load_msg(RES* ssl, sldns_buffer* buf, struct worker* worker)
625 struct regional* region = worker->scratchpad;
626 struct query_info qinf;
627 struct reply_info rep;
628 char* s = (char*)sldns_buffer_begin(buf);
629 unsigned int flags, qdcount, security, an, ns, ar;
634 regional_free_all(region);
636 if(strncmp(s, "msg ", 4) != 0) {
637 log_warn("error expected msg but got %s", s);
641 s = load_qinfo(s, &qinf, region);
646 /* read remainder of line */
647 if(sscanf(s, " %u %u " ARG_LL "d %u %u %u %u", &flags, &qdcount, &ttl,
648 &security, &an, &ns, &ar) != 7) {
649 log_warn("error cannot parse numbers: %s", s);
652 rep.flags = (uint16_t)flags;
653 rep.qdcount = (uint16_t)qdcount;
654 rep.ttl = (time_t)ttl;
655 rep.prefetch_ttl = PREFETCH_TTL_CALC(rep.ttl);
656 rep.serve_expired_ttl = rep.ttl + SERVE_EXPIRED_TTL;
657 rep.security = (enum sec_status)security;
658 if(an > RR_COUNT_MAX || ns > RR_COUNT_MAX || ar > RR_COUNT_MAX) {
659 log_warn("error too many rrsets");
660 return 0; /* protect against integer overflow in alloc */
662 rep.an_numrrsets = (size_t)an;
663 rep.ns_numrrsets = (size_t)ns;
664 rep.ar_numrrsets = (size_t)ar;
665 rep.rrset_count = (size_t)an+(size_t)ns+(size_t)ar;
666 rep.rrsets = (struct ub_packed_rrset_key**)regional_alloc_zero(
667 region, sizeof(struct ub_packed_rrset_key*)*rep.rrset_count);
669 /* fill repinfo with references */
670 for(i=0; i<rep.rrset_count; i++) {
671 if(!load_ref(ssl, buf, worker, region, &rep.rrsets[i],
678 return 1; /* skip this one, not all references satisfied */
680 if(!dns_cache_store(&worker->env, &qinf, &rep, 0, 0, 0, NULL, flags)) {
681 log_warn("error out of memory");
687 /** load msg cache */
689 load_msg_cache(RES* ssl, struct worker* worker)
691 sldns_buffer* buf = worker->env.scratch_buffer;
692 if(!read_fixed(ssl, buf, "START_MSG_CACHE")) return 0;
693 while(ssl_read_buf(ssl, buf) &&
694 strcmp((char*)sldns_buffer_begin(buf), "END_MSG_CACHE")!=0) {
695 if(!load_msg(ssl, buf, worker))
702 load_cache(RES* ssl, struct worker* worker)
704 if(!load_rrset_cache(ssl, worker))
706 if(!load_msg_cache(ssl, worker))
708 return read_fixed(ssl, worker->env.scratch_buffer, "EOF");
711 /** print details on a delegation point */
713 print_dp_details(RES* ssl, struct worker* worker, struct delegpt* dp)
716 struct delegpt_addr* a;
717 int lame, dlame, rlame, rto, edns_vs, to, delay,
718 tA = 0, tAAAA = 0, tother = 0;
721 uint8_t edns_lame_known;
722 for(a = dp->target_list; a; a = a->next_target) {
723 addr_to_str(&a->addr, a->addrlen, buf, sizeof(buf));
724 if(!ssl_printf(ssl, "%-16s\t", buf))
727 if(!ssl_printf(ssl, "Address is BOGUS. "))
730 /* lookup in infra cache */
732 entry_ttl = infra_get_host_rto(worker->env.infra_cache,
733 &a->addr, a->addrlen, dp->name, dp->namelen,
734 &ri, &delay, *worker->env.now, &tA, &tAAAA, &tother);
735 if(entry_ttl == -2 && ri.rto >= USEFUL_SERVER_TOP_TIMEOUT) {
736 if(!ssl_printf(ssl, "expired, rto %d msec, tA %d "
737 "tAAAA %d tother %d.\n", ri.rto, tA, tAAAA,
742 if(entry_ttl == -1 || entry_ttl == -2) {
743 if(!ssl_printf(ssl, "not in infra cache.\n"))
745 continue; /* skip stuff not in infra cache */
748 /* uses type_A because most often looked up, but other
749 * lameness won't be reported then */
750 if(!infra_get_lame_rtt(worker->env.infra_cache,
751 &a->addr, a->addrlen, dp->name, dp->namelen,
752 LDNS_RR_TYPE_A, &lame, &dlame, &rlame, &rto,
754 if(!ssl_printf(ssl, "not in infra cache.\n"))
756 continue; /* skip stuff not in infra cache */
758 if(!ssl_printf(ssl, "%s%s%s%srto %d msec, ttl " ARG_LL "d, "
759 "ping %d var %d rtt %d, tA %d, tAAAA %d, tother %d",
760 lame?"LAME ":"", dlame?"NoDNSSEC ":"",
761 a->lame?"AddrWasParentSide ":"",
762 rlame?"NoAuthButRecursive ":"", rto, entry_ttl,
763 ri.srtt, ri.rttvar, rtt_notimeout(&ri),
767 if(!ssl_printf(ssl, ", probedelay %d", delay))
769 if(infra_host(worker->env.infra_cache, &a->addr, a->addrlen,
770 dp->name, dp->namelen, *worker->env.now, &edns_vs,
771 &edns_lame_known, &to)) {
773 if(!ssl_printf(ssl, ", noEDNS%s.",
774 edns_lame_known?" probed":" assumed"))
777 if(!ssl_printf(ssl, ", EDNS %d%s.", edns_vs,
778 edns_lame_known?" probed":" assumed"))
782 if(!ssl_printf(ssl, "\n"))
787 /** print main dp info */
789 print_dp_main(RES* ssl, struct delegpt* dp, struct dns_msg* msg)
791 size_t i, n_ns, n_miss, n_addr, n_res, n_avail;
795 for(i=0; i<msg->rep->rrset_count; i++) {
796 struct ub_packed_rrset_key* k = msg->rep->rrsets[i];
797 struct packed_rrset_data* d =
798 (struct packed_rrset_data*)k->entry.data;
799 if(d->security == sec_status_bogus) {
800 if(!ssl_printf(ssl, "Address is BOGUS:\n"))
803 if(!dump_rrset(ssl, k, d, 0))
806 delegpt_count_ns(dp, &n_ns, &n_miss);
807 delegpt_count_addr(dp, &n_addr, &n_res, &n_avail);
808 /* since dp has not been used by iterator, all are available*/
809 if(!ssl_printf(ssl, "Delegation with %d names, of which %d "
810 "can be examined to query further addresses.\n"
811 "%sIt provides %d IP addresses.\n",
812 (int)n_ns, (int)n_miss, (dp->bogus?"It is BOGUS. ":""),
817 int print_deleg_lookup(RES* ssl, struct worker* worker, uint8_t* nm,
818 size_t nmlen, int ATTR_UNUSED(nmlabs))
820 /* deep links into the iterator module */
823 struct regional* region = worker->scratchpad;
825 struct query_info qinfo;
826 struct iter_hints_stub* stub;
827 regional_free_all(region);
829 qinfo.qname_len = nmlen;
830 qinfo.qtype = LDNS_RR_TYPE_A;
831 qinfo.qclass = LDNS_RR_CLASS_IN;
832 qinfo.local_alias = NULL;
835 if(!ssl_printf(ssl, "The following name servers are used for lookup "
839 dp = forwards_lookup(worker->env.fwds, nm, qinfo.qclass);
841 if(!ssl_printf(ssl, "forwarding request:\n"))
843 print_dp_main(ssl, dp, NULL);
844 print_dp_details(ssl, worker, dp);
849 dp = dns_cache_find_delegation(&worker->env, nm, nmlen,
850 qinfo.qtype, qinfo.qclass, region, &msg,
853 return ssl_printf(ssl, "no delegation from "
854 "cache; goes to configured roots\n");
857 if(iter_dp_is_useless(&qinfo, BIT_RD, dp)) {
858 print_dp_main(ssl, dp, msg);
859 print_dp_details(ssl, worker, dp);
860 if(!ssl_printf(ssl, "cache delegation was "
861 "useless (no IP addresses)\n"))
863 if(dname_is_root(nm)) {
864 /* goes to root config */
865 return ssl_printf(ssl, "no delegation from "
866 "cache; goes to configured roots\n");
868 /* useless, goes up */
871 dname_remove_label(&nm, &nmlen);
873 if(!ssl_printf(ssl, "going up, lookup %s\n", b))
878 stub = hints_lookup_stub(worker->env.hints, nm, qinfo.qclass,
882 if(!ssl_printf(ssl, "The noprime stub servers "
886 if(!ssl_printf(ssl, "The stub is primed "
890 print_dp_main(ssl, stub->dp, NULL);
891 print_dp_details(ssl, worker, stub->dp);
893 print_dp_main(ssl, dp, msg);
894 print_dp_details(ssl, worker, dp);