3d17a3ba61
to DNSSEC but are sematically equal according to plain
DNS. Apply plain DNS comparisons rather than DNSSEC
comparisons when processing UPDATE requests.
dnssec-signzone now removes such semantically duplicate
records prior to signing the RRset.
named-checkzone -r {ignore|warn|fail} (default warn)
named-compilezone -r {ignore|warn|fail} (default warn)
named.conf: check-dup-records {ignore|warn|fail};
357 lines
8.0 KiB
C
357 lines
8.0 KiB
C
/*
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* Copyright (C) 2004, 2007, 2009 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 1999-2002 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: wks_11.c,v 1.57 2009/12/04 21:09:34 marka Exp $ */
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/* Reviewed: Fri Mar 17 15:01:49 PST 2000 by explorer */
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#ifndef RDATA_IN_1_WKS_11_C
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#define RDATA_IN_1_WKS_11_C
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#include <limits.h>
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#include <stdlib.h>
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#include <isc/net.h>
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#include <isc/netdb.h>
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#define RRTYPE_WKS_ATTRIBUTES (0)
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static inline isc_result_t
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fromtext_in_wks(ARGS_FROMTEXT) {
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isc_token_t token;
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isc_region_t region;
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struct in_addr addr;
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struct protoent *pe;
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struct servent *se;
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char *e;
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long proto;
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unsigned char bm[8*1024]; /* 64k bits */
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long port;
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long maxport = -1;
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const char *ps = NULL;
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unsigned int n;
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char service[32];
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int i;
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REQUIRE(type == 11);
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REQUIRE(rdclass == 1);
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UNUSED(type);
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UNUSED(origin);
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UNUSED(options);
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UNUSED(rdclass);
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/*
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* IPv4 dotted quad.
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*/
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RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
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ISC_FALSE));
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isc_buffer_availableregion(target, ®ion);
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if (getquad(DNS_AS_STR(token), &addr, lexer, callbacks) != 1)
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RETTOK(DNS_R_BADDOTTEDQUAD);
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if (region.length < 4)
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return (ISC_R_NOSPACE);
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memcpy(region.base, &addr, 4);
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isc_buffer_add(target, 4);
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/*
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* Protocol.
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*/
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RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
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ISC_FALSE));
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proto = strtol(DNS_AS_STR(token), &e, 10);
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if (*e == 0)
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;
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else if ((pe = getprotobyname(DNS_AS_STR(token))) != NULL)
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proto = pe->p_proto;
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else
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RETTOK(DNS_R_UNKNOWNPROTO);
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if (proto < 0 || proto > 0xff)
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RETTOK(ISC_R_RANGE);
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if (proto == IPPROTO_TCP)
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ps = "tcp";
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else if (proto == IPPROTO_UDP)
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ps = "udp";
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RETERR(uint8_tobuffer(proto, target));
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memset(bm, 0, sizeof(bm));
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do {
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RETERR(isc_lex_getmastertoken(lexer, &token,
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isc_tokentype_string, ISC_TRUE));
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if (token.type != isc_tokentype_string)
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break;
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/*
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* Lowercase the service string as some getservbyname() are
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* case sensitive and the database is usually in lowercase.
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*/
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strncpy(service, DNS_AS_STR(token), sizeof(service));
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service[sizeof(service)-1] = '\0';
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for (i = strlen(service) - 1; i >= 0; i--)
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if (isupper(service[i]&0xff))
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service[i] = tolower(service[i]&0xff);
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port = strtol(DNS_AS_STR(token), &e, 10);
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if (*e == 0)
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;
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else if ((se = getservbyname(service, ps)) != NULL)
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port = ntohs(se->s_port);
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else if ((se = getservbyname(DNS_AS_STR(token), ps))
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!= NULL)
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port = ntohs(se->s_port);
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else
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RETTOK(DNS_R_UNKNOWNSERVICE);
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if (port < 0 || port > 0xffff)
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RETTOK(ISC_R_RANGE);
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if (port > maxport)
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maxport = port;
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bm[port / 8] |= (0x80 >> (port % 8));
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} while (1);
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/*
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* Let upper layer handle eol/eof.
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*/
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isc_lex_ungettoken(lexer, &token);
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n = (maxport + 8) / 8;
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return (mem_tobuffer(target, bm, n));
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}
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static inline isc_result_t
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totext_in_wks(ARGS_TOTEXT) {
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isc_region_t sr;
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unsigned short proto;
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char buf[sizeof("65535")];
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unsigned int i, j;
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UNUSED(tctx);
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REQUIRE(rdata->type == 11);
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REQUIRE(rdata->rdclass == 1);
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REQUIRE(rdata->length >= 5);
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dns_rdata_toregion(rdata, &sr);
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RETERR(inet_totext(AF_INET, &sr, target));
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isc_region_consume(&sr, 4);
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proto = uint8_fromregion(&sr);
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sprintf(buf, "%u", proto);
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RETERR(str_totext(" ", target));
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RETERR(str_totext(buf, target));
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isc_region_consume(&sr, 1);
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INSIST(sr.length <= 8*1024);
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for (i = 0; i < sr.length; i++) {
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if (sr.base[i] != 0)
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for (j = 0; j < 8; j++)
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if ((sr.base[i] & (0x80 >> j)) != 0) {
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sprintf(buf, "%u", i * 8 + j);
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RETERR(str_totext(" ", target));
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RETERR(str_totext(buf, target));
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}
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}
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return (ISC_R_SUCCESS);
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}
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static inline isc_result_t
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fromwire_in_wks(ARGS_FROMWIRE) {
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isc_region_t sr;
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isc_region_t tr;
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REQUIRE(type == 11);
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REQUIRE(rdclass == 1);
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UNUSED(type);
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UNUSED(dctx);
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UNUSED(options);
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UNUSED(rdclass);
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isc_buffer_activeregion(source, &sr);
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isc_buffer_availableregion(target, &tr);
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if (sr.length < 5)
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return (ISC_R_UNEXPECTEDEND);
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if (sr.length > 8 * 1024 + 5)
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return (DNS_R_EXTRADATA);
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if (tr.length < sr.length)
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return (ISC_R_NOSPACE);
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memcpy(tr.base, sr.base, sr.length);
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isc_buffer_add(target, sr.length);
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isc_buffer_forward(source, sr.length);
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return (ISC_R_SUCCESS);
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}
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static inline isc_result_t
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towire_in_wks(ARGS_TOWIRE) {
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isc_region_t sr;
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UNUSED(cctx);
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REQUIRE(rdata->type == 11);
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REQUIRE(rdata->rdclass == 1);
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REQUIRE(rdata->length != 0);
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dns_rdata_toregion(rdata, &sr);
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return (mem_tobuffer(target, sr.base, sr.length));
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}
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static inline int
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compare_in_wks(ARGS_COMPARE) {
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isc_region_t r1;
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isc_region_t r2;
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REQUIRE(rdata1->type == rdata2->type);
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REQUIRE(rdata1->rdclass == rdata2->rdclass);
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REQUIRE(rdata1->type == 11);
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REQUIRE(rdata1->rdclass == 1);
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REQUIRE(rdata1->length != 0);
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REQUIRE(rdata2->length != 0);
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dns_rdata_toregion(rdata1, &r1);
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dns_rdata_toregion(rdata2, &r2);
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return (isc_region_compare(&r1, &r2));
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}
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static inline isc_result_t
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fromstruct_in_wks(ARGS_FROMSTRUCT) {
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dns_rdata_in_wks_t *wks = source;
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isc_uint32_t a;
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REQUIRE(type == 11);
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REQUIRE(rdclass == 1);
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REQUIRE(source != NULL);
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REQUIRE(wks->common.rdtype == type);
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REQUIRE(wks->common.rdclass == rdclass);
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REQUIRE((wks->map != NULL && wks->map_len <= 8*1024) ||
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wks->map_len == 0);
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UNUSED(type);
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UNUSED(rdclass);
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a = ntohl(wks->in_addr.s_addr);
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RETERR(uint32_tobuffer(a, target));
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RETERR(uint16_tobuffer(wks->protocol, target));
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return (mem_tobuffer(target, wks->map, wks->map_len));
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}
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static inline isc_result_t
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tostruct_in_wks(ARGS_TOSTRUCT) {
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dns_rdata_in_wks_t *wks = target;
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isc_uint32_t n;
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isc_region_t region;
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REQUIRE(rdata->type == 11);
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REQUIRE(rdata->rdclass == 1);
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REQUIRE(rdata->length != 0);
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wks->common.rdclass = rdata->rdclass;
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wks->common.rdtype = rdata->type;
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ISC_LINK_INIT(&wks->common, link);
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dns_rdata_toregion(rdata, ®ion);
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n = uint32_fromregion(®ion);
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wks->in_addr.s_addr = htonl(n);
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isc_region_consume(®ion, 4);
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wks->protocol = uint16_fromregion(®ion);
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isc_region_consume(®ion, 2);
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wks->map_len = region.length;
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wks->map = mem_maybedup(mctx, region.base, region.length);
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if (wks->map == NULL)
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return (ISC_R_NOMEMORY);
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wks->mctx = mctx;
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return (ISC_R_SUCCESS);
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}
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static inline void
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freestruct_in_wks(ARGS_FREESTRUCT) {
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dns_rdata_in_wks_t *wks = source;
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REQUIRE(source != NULL);
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REQUIRE(wks->common.rdtype == 11);
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REQUIRE(wks->common.rdclass == 1);
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if (wks->mctx == NULL)
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return;
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if (wks->map != NULL)
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isc_mem_free(wks->mctx, wks->map);
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wks->mctx = NULL;
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}
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static inline isc_result_t
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additionaldata_in_wks(ARGS_ADDLDATA) {
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UNUSED(rdata);
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UNUSED(add);
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UNUSED(arg);
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REQUIRE(rdata->type == 11);
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REQUIRE(rdata->rdclass == 1);
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return (ISC_R_SUCCESS);
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}
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static inline isc_result_t
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digest_in_wks(ARGS_DIGEST) {
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isc_region_t r;
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REQUIRE(rdata->type == 11);
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REQUIRE(rdata->rdclass == 1);
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dns_rdata_toregion(rdata, &r);
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return ((digest)(arg, &r));
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}
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static inline isc_boolean_t
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checkowner_in_wks(ARGS_CHECKOWNER) {
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REQUIRE(type == 11);
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REQUIRE(rdclass == 1);
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UNUSED(type);
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UNUSED(rdclass);
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return (dns_name_ishostname(name, wildcard));
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}
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static inline isc_boolean_t
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checknames_in_wks(ARGS_CHECKNAMES) {
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REQUIRE(rdata->type == 11);
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REQUIRE(rdata->rdclass == 1);
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UNUSED(rdata);
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UNUSED(owner);
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UNUSED(bad);
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return (ISC_TRUE);
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}
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static inline int
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casecompare_in_wks(ARGS_COMPARE) {
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return (compare_in_wks(rdata1, rdata2));
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}
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#endif /* RDATA_IN_1_WKS_11_C */
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