diff options
Diffstat (limited to 'usr.sbin/bind/lib/dns/rdata/generic/ptr_12.c')
| -rw-r--r-- | usr.sbin/bind/lib/dns/rdata/generic/ptr_12.c | 106 |
1 files changed, 95 insertions, 11 deletions
diff --git a/usr.sbin/bind/lib/dns/rdata/generic/ptr_12.c b/usr.sbin/bind/lib/dns/rdata/generic/ptr_12.c index c1042947848..4dab6446e1d 100644 --- a/usr.sbin/bind/lib/dns/rdata/generic/ptr_12.c +++ b/usr.sbin/bind/lib/dns/rdata/generic/ptr_12.c @@ -1,21 +1,21 @@ /* + * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 1998-2001 Internet Software Consortium. * * 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. + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC 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. */ -/* $ISC: ptr_12.c,v 1.39 2001/07/16 03:06:26 marka Exp $ */ +/* $ISC: ptr_12.c,v 1.39.206.2 2004/03/06 08:14:11 marka Exp $ */ /* Reviewed: Thu Mar 16 14:05:12 PST 2000 by explorer */ @@ -42,7 +42,17 @@ fromtext_ptr(ARGS_FROMTEXT) { dns_name_init(&name, NULL); buffer_fromregion(&buffer, &token.value.as_region); origin = (origin != NULL) ? origin : dns_rootname; - RETTOK(dns_name_fromtext(&name, &buffer, origin, downcase, target)); + RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target)); + if (rdclass == dns_rdataclass_in && + (options & DNS_RDATA_CHECKNAMES) != 0 && + (options & DNS_RDATA_CHECKREVERSE) != 0) { + isc_boolean_t ok; + ok = dns_name_ishostname(&name, ISC_FALSE); + if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0) + RETTOK(DNS_R_BADNAME); + if (!ok && callbacks != NULL) + warn_badname(&name, lexer, callbacks); + } return (ISC_R_SUCCESS); } @@ -79,7 +89,7 @@ fromwire_ptr(ARGS_FROMWIRE) { dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14); dns_name_init(&name, NULL); - return (dns_name_fromwire(&name, source, dctx, downcase, target)); + return (dns_name_fromwire(&name, source, dctx, options, target)); } static inline isc_result_t @@ -204,4 +214,78 @@ digest_ptr(ARGS_DIGEST) { return (dns_name_digest(&name, digest, arg)); } +static inline isc_boolean_t +checkowner_ptr(ARGS_CHECKOWNER) { + + REQUIRE(type == 12); + + UNUSED(name); + UNUSED(type); + UNUSED(rdclass); + UNUSED(wildcard); + + return (ISC_TRUE); +} + +static unsigned char ip6_arpa_data[] = "\003IP6\004ARPA"; +static unsigned char ip6_arpa_offsets[] = { 0, 4, 9 }; +static const dns_name_t ip6_arpa = +{ + DNS_NAME_MAGIC, + ip6_arpa_data, 10, 3, + DNS_NAMEATTR_READONLY | DNS_NAMEATTR_ABSOLUTE, + ip6_arpa_offsets, NULL, + {(void *)-1, (void *)-1}, + {NULL, NULL} +}; + +static unsigned char ip6_int_data[] = "\003IP6\003INT"; +static unsigned char ip6_int_offsets[] = { 0, 4, 8 }; +static const dns_name_t ip6_int = +{ + DNS_NAME_MAGIC, + ip6_int_data, 9, 3, + DNS_NAMEATTR_READONLY | DNS_NAMEATTR_ABSOLUTE, + ip6_int_offsets, NULL, + {(void *)-1, (void *)-1}, + {NULL, NULL} +}; + +static unsigned char in_addr_arpa_data[] = "\007IN-ADDR\004ARPA"; +static unsigned char in_addr_arpa_offsets[] = { 0, 8, 13 }; +static const dns_name_t in_addr_arpa = +{ + DNS_NAME_MAGIC, + in_addr_arpa_data, 14, 3, + DNS_NAMEATTR_READONLY | DNS_NAMEATTR_ABSOLUTE, + in_addr_arpa_offsets, NULL, + {(void *)-1, (void *)-1}, + {NULL, NULL} +}; + +static inline isc_boolean_t +checknames_ptr(ARGS_CHECKNAMES) { + isc_region_t region; + dns_name_t name; + + REQUIRE(rdata->type == 12); + + if (rdata->rdclass != dns_rdataclass_in) + return (ISC_TRUE); + + if (dns_name_issubdomain(owner, &in_addr_arpa) || + dns_name_issubdomain(owner, &ip6_arpa) || + dns_name_issubdomain(owner, &ip6_int)) { + dns_rdata_toregion(rdata, ®ion); + dns_name_init(&name, NULL); + dns_name_fromregion(&name, ®ion); + if (!dns_name_ishostname(&name, ISC_FALSE)) { + if (bad != NULL) + dns_name_clone(&name, bad); + return (ISC_FALSE); + } + } + return (ISC_TRUE); +} + #endif /* RDATA_GENERIC_PTR_12_C */ |