mirror of
https://gitlab.isc.org/isc-projects/bind9
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Initial Implementation.
This commit is contained in:
Mark Andrews
parent
a48fa4b49c
commit
901b5fb3b3
263
lib/dns/rdata/in_1/a6_38.c
Normal file
263
lib/dns/rdata/in_1/a6_38.c
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@ -0,0 +1,263 @@
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/*
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* Copyright (C) 1999 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/* $Id: a6_38.c,v 1.1 1999/02/02 04:52:31 marka Exp $ */
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/* draft-ietf-ipngwg-dns-lookups-03.txt */
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#ifndef RDATA_IN_1_A6_28_H
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#define RDATA_IN_1_A6_28_H
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <isc/inet.h>
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#ifndef MAX
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#define MAX(A, B) ((A > B) ? (A) : (B))
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#endif
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static dns_result_t
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fromtext_in_a6(dns_rdataclass_t class, dns_rdatatype_t type,
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isc_lex_t *lexer, dns_name_t *origin,
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isc_boolean_t downcase, isc_buffer_t *target)
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{
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isc_token_t token;
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unsigned char addr[16];
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unsigned char prefixlen;
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unsigned char octets;
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unsigned char mask;
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dns_name_t name;
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isc_buffer_t buffer;
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REQUIRE(type == 38);
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REQUIRE(class == 1);
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/* prefix length */
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RETERR(gettoken(lexer, &token, isc_tokentype_number, ISC_FALSE));
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if (token.value.as_ulong > 128)
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return (DNS_R_RANGE);
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prefixlen = token.value.as_ulong;
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RETERR(mem_tobuffer(target, &prefixlen, 1));
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/* suffix */
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if (prefixlen != 128) {
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/* prefix 0..127 */
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octets = prefixlen/8;
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/* octets 0..15 */
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RETERR(gettoken(lexer, &token, isc_tokentype_string,
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ISC_FALSE));
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if (isc_inet_pton(AF_INET6, token.value.as_pointer, &addr) != 1)
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return (DNS_R_UNEXPECTED);
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mask = 0xff >> (prefixlen % 8);
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addr[octets] &= mask;
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RETERR(mem_tobuffer(target, &addr[octets], 16 - octets));
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}
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if (prefixlen == 0)
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return (DNS_R_SUCCESS);
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RETERR(gettoken(lexer, &token, isc_tokentype_string, ISC_FALSE));
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dns_name_init(&name, NULL);
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buffer_fromregion(&buffer, &token.value.as_region,
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ISC_BUFFERTYPE_TEXT);
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origin = (origin != NULL) ? origin : dns_rootname;
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return (dns_name_fromtext(&name, &buffer, origin, downcase, target));
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}
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static dns_result_t
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totext_in_a6(dns_rdata_t *rdata, dns_name_t *origin, isc_buffer_t *target) {
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isc_region_t tr;
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isc_region_t sr;
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unsigned char addr[16];
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unsigned char prefixlen;
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unsigned char octets;
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unsigned char mask;
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char buf[sizeof "128"];
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dns_name_t name;
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dns_name_t prefix;
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isc_boolean_t sub;
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REQUIRE(rdata->type == 38);
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REQUIRE(rdata->class == 1);
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dns_rdata_toregion(rdata, &sr);
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prefixlen = sr.base[0];
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INSIST(prefixlen <= 128);
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isc_region_consume(&sr, 1);
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sprintf(buf, "%u", prefixlen);
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RETERR(str_totext(buf, target));
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RETERR(str_totext(" ", target));
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if (prefixlen != 128) {
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octets = prefixlen/8;
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memset(&addr, 0, sizeof addr);
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memcpy(&addr[octets], sr.base, 16 - octets);
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mask = 0xff >> (prefixlen % 8);
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addr[octets] &= mask;
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isc_buffer_available(target, &tr);
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if (isc_inet_ntop(AF_INET6, &addr,
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(char *)tr.base, tr.length) == NULL)
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return (DNS_R_NOSPACE);
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isc_buffer_add(target, strlen((char *)tr.base));
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isc_region_consume(&sr, 16 - octets);
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}
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if (prefixlen == 0)
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return (DNS_R_SUCCESS);
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RETERR(str_totext(" ", target));
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dns_name_init(&name, NULL);
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dns_name_init(&prefix, NULL);
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dns_name_fromregion(&name, &sr);
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sub = name_prefix(&name, origin, &prefix);
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return(dns_name_totext(&prefix, sub, target));
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}
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static dns_result_t
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fromwire_in_a6(dns_rdataclass_t class, dns_rdatatype_t type,
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isc_buffer_t *source, dns_decompress_t *dctx,
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isc_boolean_t downcase, isc_buffer_t *target) {
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isc_region_t sr;
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unsigned char prefixlen;
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unsigned char octets;
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unsigned char mask;
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dns_name_t name;
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REQUIRE(type == 38);
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REQUIRE(class == 1);
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isc_buffer_active(source, &sr);
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/* prefix length */
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if (sr.length < 1)
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return (DNS_R_UNEXPECTEDEND);
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prefixlen = sr.base[0];
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if (prefixlen > 128)
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return (DNS_R_RANGE);
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isc_region_consume(&sr, 1);
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RETERR(mem_tobuffer(target, &prefixlen, 1));
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isc_buffer_forward(source, 1);
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/* suffix */
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if (prefixlen != 128) {
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octets = 16 - prefixlen / 8;
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if (sr.length < octets)
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return (DNS_R_UNEXPECTEDEND);
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mask = 0xff >> (prefixlen % 8);
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sr.base[0] &= mask; /* ensure pad bits are zero */
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RETERR(mem_tobuffer(target, sr.base, octets));
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isc_buffer_forward(source, octets);
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}
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if (prefixlen == 0)
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return (DNS_R_SUCCESS);
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dns_name_init(&name, NULL);
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return (dns_name_fromwire(&name, source, dctx, downcase, target));
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}
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static dns_result_t
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towire_in_a6(dns_rdata_t *rdata, dns_compress_t *cctx, isc_buffer_t *target) {
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isc_region_t sr;
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dns_name_t name;
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unsigned char prefixlen;
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unsigned char octets;
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REQUIRE(rdata->type == 38);
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REQUIRE(rdata->class == 1);
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dns_rdata_toregion(rdata, &sr);
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prefixlen = sr.base[0];
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INSIST(prefixlen <= 128);
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octets = 1 + 16 - prefixlen / 8;
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RETERR(mem_tobuffer(target, sr.base, octets));
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isc_region_consume(&sr, octets);
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if (prefixlen == 0)
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return (DNS_R_SUCCESS);
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dns_name_init(&name, NULL);
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dns_name_fromregion(&name, &sr);
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return (dns_name_towire(&name, cctx, target));
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}
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static int
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compare_in_a6(dns_rdata_t *rdata1, dns_rdata_t *rdata2) {
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int result;
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unsigned char prefixlen;
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unsigned char octets;
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dns_name_t name1;
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dns_name_t name2;
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isc_region_t region1;
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isc_region_t region2;
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REQUIRE(rdata1->type == rdata2->type);
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REQUIRE(rdata1->class == rdata2->class);
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REQUIRE(rdata1->type == 38);
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REQUIRE(rdata1->class == 1);
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dns_rdata_toregion(rdata1, ®ion1);
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dns_rdata_toregion(rdata2, ®ion2);
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prefixlen = MAX(region1.base[0], region2.base[0]);
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octets = 1 + 16 - prefixlen / 8;
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result = memcmp(region1.base, region2.base, octets);
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if (result != 0)
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result = (result < 0) ? -1 : 1;
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isc_region_consume(®ion1, octets);
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isc_region_consume(®ion2, octets);
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dns_name_init(&name1, NULL);
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dns_name_init(&name2, NULL);
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dns_name_fromregion(&name1, ®ion1);
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dns_name_fromregion(&name2, ®ion2);
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return (dns_name_compare(&name1, &name2));
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}
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static dns_result_t
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fromstruct_in_a6(dns_rdataclass_t class, dns_rdatatype_t type, void *source,
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isc_buffer_t *target) {
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REQUIRE(type == 1);
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REQUIRE(class == 1);
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source = source;
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target = target;
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return (DNS_R_NOTIMPLEMENTED);
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}
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static dns_result_t
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tostruct_in_a6(dns_rdata_t *rdata, void *target) {
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REQUIRE(rdata->type == 38);
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REQUIRE(rdata->class == 1);
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target = target;
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return (DNS_R_NOTIMPLEMENTED);
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}
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#endif /* RDATA_IN_1_A6_38_H */
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263
lib/dns/rdata/in_1/a6_38.h
Normal file
263
lib/dns/rdata/in_1/a6_38.h
Normal file
@ -0,0 +1,263 @@
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/*
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* Copyright (C) 1999 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
|
||||||
|
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
|
||||||
|
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
|
||||||
|
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
||||||
|
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
|
||||||
|
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
||||||
|
* SOFTWARE.
|
||||||
|
*/
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/* $Id: a6_38.h,v 1.1 1999/02/02 04:52:31 marka Exp $ */
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/* draft-ietf-ipngwg-dns-lookups-03.txt */
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#ifndef RDATA_IN_1_A6_28_H
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#define RDATA_IN_1_A6_28_H
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <isc/inet.h>
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#ifndef MAX
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#define MAX(A, B) ((A > B) ? (A) : (B))
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#endif
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static dns_result_t
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fromtext_in_a6(dns_rdataclass_t class, dns_rdatatype_t type,
|
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|
isc_lex_t *lexer, dns_name_t *origin,
|
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|
isc_boolean_t downcase, isc_buffer_t *target)
|
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|
{
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|
isc_token_t token;
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|
unsigned char addr[16];
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|
unsigned char prefixlen;
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|
unsigned char octets;
|
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unsigned char mask;
|
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|
dns_name_t name;
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|
isc_buffer_t buffer;
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|
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|
REQUIRE(type == 38);
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REQUIRE(class == 1);
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/* prefix length */
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RETERR(gettoken(lexer, &token, isc_tokentype_number, ISC_FALSE));
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|
if (token.value.as_ulong > 128)
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return (DNS_R_RANGE);
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|
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||||||
|
prefixlen = token.value.as_ulong;
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RETERR(mem_tobuffer(target, &prefixlen, 1));
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|
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/* suffix */
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||||||
|
if (prefixlen != 128) {
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/* prefix 0..127 */
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|
octets = prefixlen/8;
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/* octets 0..15 */
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RETERR(gettoken(lexer, &token, isc_tokentype_string,
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ISC_FALSE));
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if (isc_inet_pton(AF_INET6, token.value.as_pointer, &addr) != 1)
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return (DNS_R_UNEXPECTED);
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mask = 0xff >> (prefixlen % 8);
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addr[octets] &= mask;
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RETERR(mem_tobuffer(target, &addr[octets], 16 - octets));
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}
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|
if (prefixlen == 0)
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return (DNS_R_SUCCESS);
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RETERR(gettoken(lexer, &token, isc_tokentype_string, ISC_FALSE));
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dns_name_init(&name, NULL);
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|
buffer_fromregion(&buffer, &token.value.as_region,
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|
ISC_BUFFERTYPE_TEXT);
|
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|
origin = (origin != NULL) ? origin : dns_rootname;
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||||||
|
return (dns_name_fromtext(&name, &buffer, origin, downcase, target));
|
||||||
|
}
|
||||||
|
|
||||||
|
static dns_result_t
|
||||||
|
totext_in_a6(dns_rdata_t *rdata, dns_name_t *origin, isc_buffer_t *target) {
|
||||||
|
isc_region_t tr;
|
||||||
|
isc_region_t sr;
|
||||||
|
unsigned char addr[16];
|
||||||
|
unsigned char prefixlen;
|
||||||
|
unsigned char octets;
|
||||||
|
unsigned char mask;
|
||||||
|
char buf[sizeof "128"];
|
||||||
|
dns_name_t name;
|
||||||
|
dns_name_t prefix;
|
||||||
|
isc_boolean_t sub;
|
||||||
|
|
||||||
|
REQUIRE(rdata->type == 38);
|
||||||
|
REQUIRE(rdata->class == 1);
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||||||
|
|
||||||
|
dns_rdata_toregion(rdata, &sr);
|
||||||
|
prefixlen = sr.base[0];
|
||||||
|
INSIST(prefixlen <= 128);
|
||||||
|
isc_region_consume(&sr, 1);
|
||||||
|
sprintf(buf, "%u", prefixlen);
|
||||||
|
RETERR(str_totext(buf, target));
|
||||||
|
RETERR(str_totext(" ", target));
|
||||||
|
|
||||||
|
if (prefixlen != 128) {
|
||||||
|
octets = prefixlen/8;
|
||||||
|
memset(&addr, 0, sizeof addr);
|
||||||
|
memcpy(&addr[octets], sr.base, 16 - octets);
|
||||||
|
mask = 0xff >> (prefixlen % 8);
|
||||||
|
addr[octets] &= mask;
|
||||||
|
isc_buffer_available(target, &tr);
|
||||||
|
if (isc_inet_ntop(AF_INET6, &addr,
|
||||||
|
(char *)tr.base, tr.length) == NULL)
|
||||||
|
return (DNS_R_NOSPACE);
|
||||||
|
|
||||||
|
isc_buffer_add(target, strlen((char *)tr.base));
|
||||||
|
isc_region_consume(&sr, 16 - octets);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (prefixlen == 0)
|
||||||
|
return (DNS_R_SUCCESS);
|
||||||
|
|
||||||
|
RETERR(str_totext(" ", target));
|
||||||
|
dns_name_init(&name, NULL);
|
||||||
|
dns_name_init(&prefix, NULL);
|
||||||
|
dns_name_fromregion(&name, &sr);
|
||||||
|
sub = name_prefix(&name, origin, &prefix);
|
||||||
|
return(dns_name_totext(&prefix, sub, target));
|
||||||
|
}
|
||||||
|
|
||||||
|
static dns_result_t
|
||||||
|
fromwire_in_a6(dns_rdataclass_t class, dns_rdatatype_t type,
|
||||||
|
isc_buffer_t *source, dns_decompress_t *dctx,
|
||||||
|
isc_boolean_t downcase, isc_buffer_t *target) {
|
||||||
|
isc_region_t sr;
|
||||||
|
unsigned char prefixlen;
|
||||||
|
unsigned char octets;
|
||||||
|
unsigned char mask;
|
||||||
|
dns_name_t name;
|
||||||
|
|
||||||
|
REQUIRE(type == 38);
|
||||||
|
REQUIRE(class == 1);
|
||||||
|
|
||||||
|
isc_buffer_active(source, &sr);
|
||||||
|
/* prefix length */
|
||||||
|
if (sr.length < 1)
|
||||||
|
return (DNS_R_UNEXPECTEDEND);
|
||||||
|
prefixlen = sr.base[0];
|
||||||
|
if (prefixlen > 128)
|
||||||
|
return (DNS_R_RANGE);
|
||||||
|
isc_region_consume(&sr, 1);
|
||||||
|
RETERR(mem_tobuffer(target, &prefixlen, 1));
|
||||||
|
isc_buffer_forward(source, 1);
|
||||||
|
|
||||||
|
/* suffix */
|
||||||
|
if (prefixlen != 128) {
|
||||||
|
octets = 16 - prefixlen / 8;
|
||||||
|
if (sr.length < octets)
|
||||||
|
return (DNS_R_UNEXPECTEDEND);
|
||||||
|
mask = 0xff >> (prefixlen % 8);
|
||||||
|
sr.base[0] &= mask; /* ensure pad bits are zero */
|
||||||
|
RETERR(mem_tobuffer(target, sr.base, octets));
|
||||||
|
isc_buffer_forward(source, octets);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (prefixlen == 0)
|
||||||
|
return (DNS_R_SUCCESS);
|
||||||
|
|
||||||
|
dns_name_init(&name, NULL);
|
||||||
|
return (dns_name_fromwire(&name, source, dctx, downcase, target));
|
||||||
|
}
|
||||||
|
|
||||||
|
static dns_result_t
|
||||||
|
towire_in_a6(dns_rdata_t *rdata, dns_compress_t *cctx, isc_buffer_t *target) {
|
||||||
|
isc_region_t sr;
|
||||||
|
dns_name_t name;
|
||||||
|
unsigned char prefixlen;
|
||||||
|
unsigned char octets;
|
||||||
|
|
||||||
|
REQUIRE(rdata->type == 38);
|
||||||
|
REQUIRE(rdata->class == 1);
|
||||||
|
|
||||||
|
dns_rdata_toregion(rdata, &sr);
|
||||||
|
prefixlen = sr.base[0];
|
||||||
|
INSIST(prefixlen <= 128);
|
||||||
|
|
||||||
|
octets = 1 + 16 - prefixlen / 8;
|
||||||
|
RETERR(mem_tobuffer(target, sr.base, octets));
|
||||||
|
isc_region_consume(&sr, octets);
|
||||||
|
|
||||||
|
if (prefixlen == 0)
|
||||||
|
return (DNS_R_SUCCESS);
|
||||||
|
|
||||||
|
dns_name_init(&name, NULL);
|
||||||
|
dns_name_fromregion(&name, &sr);
|
||||||
|
return (dns_name_towire(&name, cctx, target));
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
compare_in_a6(dns_rdata_t *rdata1, dns_rdata_t *rdata2) {
|
||||||
|
int result;
|
||||||
|
unsigned char prefixlen;
|
||||||
|
unsigned char octets;
|
||||||
|
dns_name_t name1;
|
||||||
|
dns_name_t name2;
|
||||||
|
isc_region_t region1;
|
||||||
|
isc_region_t region2;
|
||||||
|
|
||||||
|
REQUIRE(rdata1->type == rdata2->type);
|
||||||
|
REQUIRE(rdata1->class == rdata2->class);
|
||||||
|
REQUIRE(rdata1->type == 38);
|
||||||
|
REQUIRE(rdata1->class == 1);
|
||||||
|
|
||||||
|
dns_rdata_toregion(rdata1, ®ion1);
|
||||||
|
dns_rdata_toregion(rdata2, ®ion2);
|
||||||
|
prefixlen = MAX(region1.base[0], region2.base[0]);
|
||||||
|
octets = 1 + 16 - prefixlen / 8;
|
||||||
|
|
||||||
|
result = memcmp(region1.base, region2.base, octets);
|
||||||
|
if (result != 0)
|
||||||
|
result = (result < 0) ? -1 : 1;
|
||||||
|
|
||||||
|
isc_region_consume(®ion1, octets);
|
||||||
|
isc_region_consume(®ion2, octets);
|
||||||
|
|
||||||
|
dns_name_init(&name1, NULL);
|
||||||
|
dns_name_init(&name2, NULL);
|
||||||
|
dns_name_fromregion(&name1, ®ion1);
|
||||||
|
dns_name_fromregion(&name2, ®ion2);
|
||||||
|
return (dns_name_compare(&name1, &name2));
|
||||||
|
}
|
||||||
|
|
||||||
|
static dns_result_t
|
||||||
|
fromstruct_in_a6(dns_rdataclass_t class, dns_rdatatype_t type, void *source,
|
||||||
|
isc_buffer_t *target) {
|
||||||
|
|
||||||
|
REQUIRE(type == 1);
|
||||||
|
REQUIRE(class == 1);
|
||||||
|
|
||||||
|
source = source;
|
||||||
|
target = target;
|
||||||
|
|
||||||
|
return (DNS_R_NOTIMPLEMENTED);
|
||||||
|
}
|
||||||
|
|
||||||
|
static dns_result_t
|
||||||
|
tostruct_in_a6(dns_rdata_t *rdata, void *target) {
|
||||||
|
|
||||||
|
REQUIRE(rdata->type == 38);
|
||||||
|
REQUIRE(rdata->class == 1);
|
||||||
|
|
||||||
|
target = target;
|
||||||
|
|
||||||
|
return (DNS_R_NOTIMPLEMENTED);
|
||||||
|
}
|
||||||
|
#endif /* RDATA_IN_1_A6_38_H */
|
||||||
Loading…
x
Reference in New Issue
Block a user