Cross Reference: /src/external/bsd/nsd/dist/tsig.c

Lines Matching refs:packet
18 #include "packet.h"
485 tsig_update(tsig_record_type *tsig, buffer_type *packet, size_t length)
489 	assert(length <= buffer_limit(packet));
496 		buffer_at(packet, sizeof(original_query_id)),
498 	if (QR(packet)) {
546 tsig_find_rr(tsig_record_type *tsig, buffer_type *packet)
548 	size_t saved_position = buffer_position(packet);
549 	size_t rrcount = ((size_t)QDCOUNT(packet)
550 			  + (size_t)ANCOUNT(packet)
551 			  + (size_t)NSCOUNT(packet)
552 			  + (size_t)ARCOUNT(packet));
556 	if (ARCOUNT(packet) == 0) {
561 		/* impossibly high number of records in 64k, reject packet */
562 		buffer_set_position(packet, saved_position);
566 	buffer_set_position(packet, QHEADERSZ);
570 		if (!packet_skip_rr(packet, i < QDCOUNT(packet))) {
571 			buffer_set_position(packet, saved_position);
576 	result = tsig_parse_rr(tsig, packet);
577 	buffer_set_position(packet, saved_position);
582 tsig_parse_rr(tsig_record_type *tsig, buffer_type *packet)
590 	tsig->position = buffer_position(packet);
597 	tsig->key_name = dname_make_from_packet(tsig->rr_region, packet, 1, 1);
599 		buffer_set_position(packet, tsig->position);
603 	if (!buffer_available(packet, 10)) {
604 		buffer_set_position(packet, tsig->position);
608 	type = buffer_read_u16(packet);
609 	klass = buffer_read_u16(packet);
613 		buffer_set_position(packet, tsig->position);
617 	ttl = buffer_read_u32(packet);
618 	rdlen = buffer_read_u16(packet);
622 	if (ttl != 0 || !buffer_available(packet, rdlen)) {
623 		buffer_set_position(packet, tsig->position);
628 		tsig->rr_region, packet, 1, 1);
629 	if (!tsig->algorithm_name || !buffer_available(packet, 10)) {
630 		buffer_set_position(packet, tsig->position);
634 	tsig->signed_time_high = buffer_read_u16(packet);
635 	tsig->signed_time_low = buffer_read_u32(packet);
636 	tsig->signed_time_fudge = buffer_read_u16(packet);
637 	tsig->mac_size = buffer_read_u16(packet);
638 	if (!buffer_available(packet, tsig->mac_size)) {
639 		buffer_set_position(packet, tsig->position);
645 		buffer_set_position(packet, tsig->position);
650 		tsig->rr_region, buffer_current(packet), tsig->mac_size);
651 	buffer_skip(packet, tsig->mac_size);
652 	if (!buffer_available(packet, 6)) {
653 		buffer_set_position(packet, tsig->position);
656 	tsig->original_query_id = buffer_read_u16(packet);
657 packet);
658 	tsig->other_size = buffer_read_u16(packet);
659 	if (!buffer_available(packet, tsig->other_size) || tsig->other_size > 16) {
661 		buffer_set_position(packet, tsig->position);
665 		tsig->rr_region, buffer_current(packet), tsig->other_size);
666 	buffer_skip(packet, tsig->other_size);
672 tsig_append_rr(tsig_record_type *tsig, buffer_type *packet)
678 		buffer_write(packet, dname_name(tsig->key_name),
680 	else	buffer_write_u8(packet, 0);
681 	buffer_write_u16(packet, TYPE_TSIG);
682 	buffer_write_u16(packet, CLASS_ANY);
683 	buffer_write_u32(packet, 0); /* TTL */
684 	rdlength_pos = buffer_position(packet);
685 	buffer_skip(packet, sizeof(uint16_t));
687 		buffer_write(packet, dname_name(tsig->algorithm_name),
689 	else 	buffer_write_u8(packet, 0);
690 	buffer_write_u16(packet, tsig->signed_time_high);
691 	buffer_write_u32(packet, tsig->signed_time_low);
692 	buffer_write_u16(packet, tsig->signed_time_fudge);
693 	buffer_write_u16(packet, tsig->mac_size);
695 		buffer_write(packet, tsig->mac_data, tsig->mac_size);
696 	buffer_write_u16(packet, tsig->original_query_id);
697 	buffer_write_u16(packet, tsig->error_code);
698 	buffer_write_u16(packet, tsig->other_size);
700 		buffer_write(packet, tsig->other_data, tsig->other_size);
702 	buffer_write_u16_at(packet, rdlength_pos,
703 			    buffer_position(packet) - rdlength_pos
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