58 smart_compare(sldns_buffer* pkt, uint8_t* dnow,   in smart_compare()  argument
65 			>= sldns_buffer_limit(pkt))  in smart_compare()
67 		p = sldns_buffer_at(pkt, PTR_OFFSET(dnow[0], dnow[1]));  in smart_compare()
75 	return dname_pkt_compare(pkt, dnow, dprlast);  in smart_compare()
115 nsec_at_apex(sldns_buffer* pkt)  in nsec_at_apex()  argument
118 	size_t pos = sldns_buffer_position(pkt);  in nsec_at_apex()
120 	if(sldns_buffer_remaining(pkt) < 7) /* ttl+len+root */  in nsec_at_apex()
122 	sldns_buffer_skip(pkt, 4); /* ttl */;  in nsec_at_apex()
123 	rdatalen = sldns_buffer_read_u16(pkt);  in nsec_at_apex()
124 	if(sldns_buffer_remaining(pkt) < rdatalen) {  in nsec_at_apex()
125 		sldns_buffer_set_position(pkt, pos);  in nsec_at_apex()
129 	if(pkt_dname_len(pkt) == 0) {  in nsec_at_apex()
130 		sldns_buffer_set_position(pkt, pos);  in nsec_at_apex()
135 	if(sldns_buffer_position(pkt) < pos+4+rdatalen) {  in nsec_at_apex()
139 		if(sldns_buffer_position(pkt)+3 > pos+4+rdatalen) {  in nsec_at_apex()
140 			sldns_buffer_set_position(pkt, pos);  in nsec_at_apex()
143 		win = sldns_buffer_read_u8(pkt);  in nsec_at_apex()
144 		blen = sldns_buffer_read_u8(pkt);  in nsec_at_apex()
145 		bits = sldns_buffer_read_u8(pkt);  in nsec_at_apex()
149 			sldns_buffer_set_position(pkt, pos);  in nsec_at_apex()
154 	sldns_buffer_set_position(pkt, pos);  in nsec_at_apex()
160 pkt_rrset_flags(sldns_buffer* pkt, uint16_t type, sldns_pkt_section sec)  in pkt_rrset_flags()  argument
163 	if(type == LDNS_RR_TYPE_NSEC && nsec_at_apex(pkt)) {  in pkt_rrset_flags()
172 pkt_hash_rrset(sldns_buffer* pkt, uint8_t* dname, uint16_t type,   in pkt_hash_rrset()  argument
178 	h = dname_pkt_hash(pkt, dname, h);  in pkt_hash_rrset()
187 pkt_hash_rrset_first(sldns_buffer* pkt, uint8_t* dname)  in pkt_hash_rrset_first()  argument
193 	h = dname_pkt_hash(pkt, dname, h);  in pkt_hash_rrset_first()
213 rrset_parse_equals(struct rrset_parse* p, sldns_buffer* pkt, hashvalue_type h,   in rrset_parse_equals()  argument
219 		dname_pkt_compare(pkt, dname, p->dname) == 0)  in rrset_parse_equals()
226 msgparse_hashtable_lookup(struct msg_parse* msg, sldns_buffer* pkt,   in msgparse_hashtable_lookup()  argument
232 		if(rrset_parse_equals(p, pkt, h, rrset_flags, dname, dnamelen,  in msgparse_hashtable_lookup()
242 pkt_rrsig_covered(sldns_buffer* pkt, uint8_t* here, uint16_t* type)  in pkt_rrsig_covered()  argument
244 	size_t pos = sldns_buffer_position(pkt);  in pkt_rrsig_covered()
245 	sldns_buffer_set_position(pkt, (size_t)(here-sldns_buffer_begin(pkt)));  in pkt_rrsig_covered()
247 	if(sldns_buffer_remaining(pkt) < 4+2+19)  in pkt_rrsig_covered()
249 	sldns_buffer_skip(pkt, 4); /* ttl */  in pkt_rrsig_covered()
250 	if(sldns_buffer_read_u16(pkt) < 19) /* too short */ {  in pkt_rrsig_covered()
251 		sldns_buffer_set_position(pkt, pos);  in pkt_rrsig_covered()
254 	*type = sldns_buffer_read_u16(pkt);  in pkt_rrsig_covered()
255 	sldns_buffer_set_position(pkt, pos);  in pkt_rrsig_covered()
261 pkt_rrsig_covered_equals(sldns_buffer* pkt, uint8_t* here, uint16_t type)  in pkt_rrsig_covered_equals()  argument
264 	if(pkt_rrsig_covered(pkt, here, &t) && t == type)  in pkt_rrsig_covered_equals()
329 rrset_has_sigover(sldns_buffer* pkt, struct rrset_parse* rrset, uint16_t type,  in rrset_has_sigover()  argument
336 		if(pkt_rrsig_covered_equals(pkt, rr->ttl_data, type))  in rrset_has_sigover()
346 moveover_rrsigs(sldns_buffer* pkt, struct regional* region,   in moveover_rrsigs()  argument
355 		if(pkt_rrsig_covered_equals(pkt, sig->ttl_data,   in moveover_rrsigs()
396 	sldns_buffer* pkt, uint16_t datatype, uint32_t rrset_flags,  in change_rrsig_rrset()  argument
400 	hashvalue_type hash = pkt_hash_rrset(pkt, sigset->dname, datatype,   in change_rrsig_rrset()
417 		if(!moveover_rrsigs(pkt, region, sigset, dataset,   in change_rrsig_rrset()
466 find_rrset(struct msg_parse* msg, sldns_buffer* pkt, uint8_t* dname,   in find_rrset()  argument
474 	hashvalue_type dname_h = pkt_hash_rrset_first(pkt, dname);  in find_rrset()
480 			smart_compare(pkt, dname, *prev_dname_first,   in find_rrset()
489 			pkt_rrsig_covered_equals(pkt, sldns_buffer_current(pkt),  in find_rrset()
491 			smart_compare(pkt, dname, *prev_dname_first,  in find_rrset()
499 	*rrset_flags = pkt_rrset_flags(pkt, type, section);  in find_rrset()
502 	if(type == LDNS_RR_TYPE_RRSIG && pkt_rrsig_covered(pkt,   in find_rrset()
503 		sldns_buffer_current(pkt), &covtype)) {  in find_rrset()
506 		*rrset_prev = msgparse_hashtable_lookup(msg, pkt, *hash,   in find_rrset()
513 			*rrset_prev = msgparse_hashtable_lookup(msg, pkt,   in find_rrset()
524 			*rrset_prev = msgparse_hashtable_lookup(msg, pkt,   in find_rrset()
544 		*rrset_prev = msgparse_hashtable_lookup(msg, pkt, *hash,   in find_rrset()
547 		if(*rrset_prev && rrset_has_sigover(pkt, *rrset_prev, type,  in find_rrset()
556 				pkt, type, *rrset_flags, hasother, section,   in find_rrset()
564 	*rrset_prev = msgparse_hashtable_lookup(msg, pkt, *hash, *rrset_flags,   in find_rrset()
584 parse_query_section(sldns_buffer* pkt, struct msg_parse* msg)  in parse_query_section()  argument
591 	if(sldns_buffer_remaining(pkt) <= 0)  in parse_query_section()
593 	msg->qname = sldns_buffer_current(pkt);  in parse_query_section()
594 	if((msg->qname_len = pkt_dname_len(pkt)) == 0)  in parse_query_section()
596 	if(sldns_buffer_remaining(pkt) < sizeof(uint16_t)*2)  in parse_query_section()
598 	msg->qtype = sldns_buffer_read_u16(pkt);  in parse_query_section()
599 	msg->qclass = sldns_buffer_read_u16(pkt);  in parse_query_section()
639 calc_size(sldns_buffer* pkt, uint16_t type, struct rr_parse* rr)  in calc_size()  argument
644 	sldns_buffer_skip(pkt, 4); /* skip ttl */  in calc_size()
645 	pkt_len = sldns_buffer_read_u16(pkt);  in calc_size()
646 	if(sldns_buffer_remaining(pkt) < pkt_len)  in calc_size()
659 				oldpos = sldns_buffer_position(pkt);  in calc_size()
660 				if((len = pkt_dname_len(pkt)) == 0)  in calc_size()
662 				if(sldns_buffer_position(pkt)-oldpos > pkt_len)  in calc_size()
664 				pkt_len -= sldns_buffer_position(pkt)-oldpos;  in calc_size()
674 				len = sldns_buffer_current(pkt)[0] + 1;  in calc_size()
683 				sldns_buffer_skip(pkt, (ssize_t)len);  in calc_size()
691 	sldns_buffer_skip(pkt, (ssize_t)pkt_len);  in calc_size()
697 skip_ttl_rdata(sldns_buffer* pkt)   in skip_ttl_rdata()  argument
700 	if(sldns_buffer_remaining(pkt) < 6) /* ttl + rdatalen */  in skip_ttl_rdata()
702 	sldns_buffer_skip(pkt, 4); /* ttl */  in skip_ttl_rdata()
703 	rdatalen = sldns_buffer_read_u16(pkt);  in skip_ttl_rdata()
704 	if(sldns_buffer_remaining(pkt) < rdatalen)  in skip_ttl_rdata()
706 	sldns_buffer_skip(pkt, (ssize_t)rdatalen);  in skip_ttl_rdata()
712 sig_is_double(sldns_buffer* pkt, struct rrset_parse* rrset, uint8_t* ttldata)  in sig_is_double()  argument
715 	size_t pos = sldns_buffer_position(pkt);  in sig_is_double()
717 	if(sldns_buffer_remaining(pkt) < 6)   in sig_is_double()
719 	sldns_buffer_skip(pkt, 4); /* ttl */  in sig_is_double()
720 	rlen = sldns_buffer_read_u16(pkt);  in sig_is_double()
721 	if(sldns_buffer_remaining(pkt) < rlen) {  in sig_is_double()
722 		sldns_buffer_set_position(pkt, pos);  in sig_is_double()
725 	sldns_buffer_set_position(pkt, pos);  in sig_is_double()
754 add_rr_to_rrset(struct rrset_parse* rrset, sldns_buffer* pkt,   in add_rr_to_rrset()  argument
773 		if(!skip_ttl_rdata(pkt))  in add_rr_to_rrset()
780 	    && sig_is_double(pkt, rrset, sldns_buffer_current(pkt))) {  in add_rr_to_rrset()
781 		if(!skip_ttl_rdata(pkt))  in add_rr_to_rrset()
790 	rr->ttl_data = sldns_buffer_current(pkt);  in add_rr_to_rrset()
807 	if(!calc_size(pkt, type, rr))  in add_rr_to_rrset()
826 parse_section(sldns_buffer* pkt, struct msg_parse* msg,   in parse_section()  argument
842 	if(sldns_buffer_remaining(pkt) <= 0)  in parse_section()
846 		dname = sldns_buffer_current(pkt);  in parse_section()
847 		if((dnamelen = pkt_dname_len(pkt)) == 0)  in parse_section()
849 		if(sldns_buffer_remaining(pkt) < 10) /* type, class, ttl, len */  in parse_section()
851 		type = sldns_buffer_read_u16(pkt);  in parse_section()
852 		sldns_buffer_read(pkt, &dclass, sizeof(dclass));  in parse_section()
857 				if(pkt_rrsig_covered(pkt,   in parse_section()
858 					sldns_buffer_current(pkt), &t))  in parse_section()
876 			dname_print(stderr, pkt, dname);  in parse_section()
881 		if(!find_rrset(msg, pkt, dname, dnamelen, type, dclass, &hash,   in parse_section()
896 			dname_print(stderr, pkt, rrset->dname);  in parse_section()
903 		if((r=add_rr_to_rrset(rrset, pkt, msg, region, section,   in parse_section()
911 parse_packet(sldns_buffer* pkt, struct msg_parse* msg, struct regional* region)  in parse_packet()  argument
914 	if(sldns_buffer_remaining(pkt) < LDNS_HEADER_SIZE)  in parse_packet()
917 	sldns_buffer_read(pkt, &msg->id, sizeof(uint16_t));  in parse_packet()
918 	msg->flags = sldns_buffer_read_u16(pkt);  in parse_packet()
919 	msg->qdcount = sldns_buffer_read_u16(pkt);  in parse_packet()
920 	msg->ancount = sldns_buffer_read_u16(pkt);  in parse_packet()
921 	msg->nscount = sldns_buffer_read_u16(pkt);  in parse_packet()
922 	msg->arcount = sldns_buffer_read_u16(pkt);  in parse_packet()
925 	if((ret = parse_query_section(pkt, msg)) != 0)  in parse_packet()
927 	if((ret = parse_section(pkt, msg, region, LDNS_SECTION_ANSWER,  in parse_packet()
930 	if((ret = parse_section(pkt, msg, region, LDNS_SECTION_AUTHORITY,  in parse_packet()
933 	if(sldns_buffer_remaining(pkt) == 0 && msg->arcount == 1) {  in parse_packet()
936 	} else if((ret = parse_section(pkt, msg, region,  in parse_packet()
1215 skip_pkt_rr(sldns_buffer* pkt)  in skip_pkt_rr()  argument
1217 	if(sldns_buffer_remaining(pkt) < 1) return 0;  in skip_pkt_rr()
1218 	if(!pkt_dname_len(pkt))  in skip_pkt_rr()
1220 	if(sldns_buffer_remaining(pkt) < 4) return 0;  in skip_pkt_rr()
1221 	sldns_buffer_skip(pkt, 4); /* type and class */  in skip_pkt_rr()
1222 	if(!skip_ttl_rdata(pkt))  in skip_pkt_rr()
1229 skip_pkt_rrs(sldns_buffer* pkt, int num)  in skip_pkt_rrs()  argument
1233 		if(!skip_pkt_rr(pkt))  in skip_pkt_rrs()
1240 parse_edns_from_query_pkt(sldns_buffer* pkt, struct edns_data* edns,  in parse_edns_from_query_pkt()  argument
1246 	log_assert(LDNS_QDCOUNT(sldns_buffer_begin(pkt)) == 1);  in parse_edns_from_query_pkt()
1248 	if(LDNS_ANCOUNT(sldns_buffer_begin(pkt)) != 0 ||  in parse_edns_from_query_pkt()
1249 		LDNS_NSCOUNT(sldns_buffer_begin(pkt)) != 0) {  in parse_edns_from_query_pkt()
1250 		if(!skip_pkt_rrs(pkt, ((int)LDNS_ANCOUNT(sldns_buffer_begin(pkt)))+  in parse_edns_from_query_pkt()
1251 			((int)LDNS_NSCOUNT(sldns_buffer_begin(pkt)))))  in parse_edns_from_query_pkt()
1255 	if(LDNS_ARCOUNT(sldns_buffer_begin(pkt)) > 1) {  in parse_edns_from_query_pkt()
1258 	if(LDNS_ARCOUNT(sldns_buffer_begin(pkt)) == 0) {  in parse_edns_from_query_pkt()
1263 	if(pkt_dname_len(pkt) != 1)  in parse_edns_from_query_pkt()
1265 	if(sldns_buffer_remaining(pkt) < 10) /* type, class, ttl, rdatalen */  in parse_edns_from_query_pkt()
1267 	if(sldns_buffer_read_u16(pkt) != LDNS_RR_TYPE_OPT)  in parse_edns_from_query_pkt()
1270 	edns->udp_size = sldns_buffer_read_u16(pkt); /* class is udp size */  in parse_edns_from_query_pkt()
1271 	edns->ext_rcode = sldns_buffer_read_u8(pkt); /* ttl used for bits */  in parse_edns_from_query_pkt()
1272 	edns->edns_version = sldns_buffer_read_u8(pkt);  in parse_edns_from_query_pkt()
1273 	edns->bits = sldns_buffer_read_u16(pkt);  in parse_edns_from_query_pkt()
1282 	rdata_len = sldns_buffer_read_u16(pkt);  in parse_edns_from_query_pkt()
1283 	if(sldns_buffer_remaining(pkt) < rdata_len)  in parse_edns_from_query_pkt()
1285 	rdata_ptr = sldns_buffer_current(pkt);  in parse_edns_from_query_pkt()
1312 msgparse_rrset_remove_rr(const char* str, sldns_buffer* pkt, struct rrset_parse* rrset,  in msgparse_rrset_remove_rr()  argument
1317 		dname_pkt_copy(pkt, buf, rrset->dname);  in msgparse_rrset_remove_rr()