diff options
Diffstat (limited to 'contrib/bind9/lib/dns/rdata/in_1/a6_38.c')
| -rw-r--r-- | contrib/bind9/lib/dns/rdata/in_1/a6_38.c | 461 |
1 files changed, 0 insertions, 461 deletions
diff --git a/contrib/bind9/lib/dns/rdata/in_1/a6_38.c b/contrib/bind9/lib/dns/rdata/in_1/a6_38.c deleted file mode 100644 index 50017e1..0000000 --- a/contrib/bind9/lib/dns/rdata/in_1/a6_38.c +++ /dev/null @@ -1,461 +0,0 @@ -/* - * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC") - * Copyright (C) 1999-2003 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 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. - */ - -/* $Id: a6_38.c,v 1.52 2004/03/05 05:10:23 marka Exp $ */ - -/* RFC2874 */ - -#ifndef RDATA_IN_1_A6_28_C -#define RDATA_IN_1_A6_28_C - -#include <isc/net.h> - -#define RRTYPE_A6_ATTRIBUTES (0) - -static inline isc_result_t -fromtext_in_a6(ARGS_FROMTEXT) { - isc_token_t token; - unsigned char addr[16]; - unsigned char prefixlen; - unsigned char octets; - unsigned char mask; - dns_name_t name; - isc_buffer_t buffer; - isc_boolean_t ok; - - REQUIRE(type == 38); - REQUIRE(rdclass == 1); - - UNUSED(type); - UNUSED(rdclass); - UNUSED(callbacks); - - /* - * Prefix length. - */ - RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, - ISC_FALSE)); - if (token.value.as_ulong > 128U) - RETTOK(ISC_R_RANGE); - - prefixlen = (unsigned char)token.value.as_ulong; - RETERR(mem_tobuffer(target, &prefixlen, 1)); - - /* - * Suffix. - */ - if (prefixlen != 128) { - /* - * Prefix 0..127. - */ - octets = prefixlen/8; - /* - * Octets 0..15. - */ - RETERR(isc_lex_getmastertoken(lexer, &token, - isc_tokentype_string, - ISC_FALSE)); - if (inet_pton(AF_INET6, DNS_AS_STR(token), addr) != 1) - RETTOK(DNS_R_BADAAAA); - mask = 0xff >> (prefixlen % 8); - addr[octets] &= mask; - RETERR(mem_tobuffer(target, &addr[octets], 16 - octets)); - } - - if (prefixlen == 0) - return (ISC_R_SUCCESS); - - RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, - ISC_FALSE)); - 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, options, target)); - ok = ISC_TRUE; - if ((options & DNS_RDATA_CHECKNAMES) != 0) - 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); -} - -static inline isc_result_t -totext_in_a6(ARGS_TOTEXT) { - isc_region_t sr, ar; - 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->rdclass == 1); - REQUIRE(rdata->length != 0); - - 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; - ar.base = addr; - ar.length = sizeof(addr); - RETERR(inet_totext(AF_INET6, &ar, target)); - isc_region_consume(&sr, 16 - octets); - } - - if (prefixlen == 0) - return (ISC_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, tctx->origin, &prefix); - return (dns_name_totext(&prefix, sub, target)); -} - -static inline isc_result_t -fromwire_in_a6(ARGS_FROMWIRE) { - isc_region_t sr; - unsigned char prefixlen; - unsigned char octets; - unsigned char mask; - dns_name_t name; - - REQUIRE(type == 38); - REQUIRE(rdclass == 1); - - UNUSED(type); - UNUSED(rdclass); - - dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); - - isc_buffer_activeregion(source, &sr); - /* - * Prefix length. - */ - if (sr.length < 1) - return (ISC_R_UNEXPECTEDEND); - prefixlen = sr.base[0]; - if (prefixlen > 128) - return (ISC_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 (ISC_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 (ISC_R_SUCCESS); - - dns_name_init(&name, NULL); - return (dns_name_fromwire(&name, source, dctx, options, target)); -} - -static inline isc_result_t -towire_in_a6(ARGS_TOWIRE) { - isc_region_t sr; - dns_name_t name; - dns_offsets_t offsets; - unsigned char prefixlen; - unsigned char octets; - - REQUIRE(rdata->type == 38); - REQUIRE(rdata->rdclass == 1); - REQUIRE(rdata->length != 0); - - dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); - 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 (ISC_R_SUCCESS); - - dns_name_init(&name, offsets); - dns_name_fromregion(&name, &sr); - return (dns_name_towire(&name, cctx, target)); -} - -static inline int -compare_in_a6(ARGS_COMPARE) { - int order; - unsigned char prefixlen1, prefixlen2; - 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->rdclass == rdata2->rdclass); - REQUIRE(rdata1->type == 38); - REQUIRE(rdata1->rdclass == 1); - REQUIRE(rdata1->length != 0); - REQUIRE(rdata2->length != 0); - - dns_rdata_toregion(rdata1, ®ion1); - dns_rdata_toregion(rdata2, ®ion2); - prefixlen1 = region1.base[0]; - prefixlen2 = region2.base[0]; - isc_region_consume(®ion1, 1); - isc_region_consume(®ion2, 1); - if (prefixlen1 < prefixlen2) - return (-1); - else if (prefixlen1 > prefixlen2) - return (1); - /* - * Prefix lengths are equal. - */ - octets = 16 - prefixlen1 / 8; - - if (octets > 0) { - order = memcmp(region1.base, region2.base, octets); - if (order < 0) - return (-1); - else if (order > 0) - return (1); - /* - * Address suffixes are equal. - */ - if (prefixlen1 == 0) - return (order); - 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_rdatacompare(&name1, &name2)); -} - -static inline isc_result_t -fromstruct_in_a6(ARGS_FROMSTRUCT) { - dns_rdata_in_a6_t *a6 = source; - isc_region_t region; - int octets; - isc_uint8_t bits; - isc_uint8_t first; - isc_uint8_t mask; - - REQUIRE(type == 38); - REQUIRE(rdclass == 1); - REQUIRE(source != NULL); - REQUIRE(a6->common.rdtype == type); - REQUIRE(a6->common.rdclass == rdclass); - - UNUSED(type); - UNUSED(rdclass); - - if (a6->prefixlen > 128) - return (ISC_R_RANGE); - - RETERR(uint8_tobuffer(a6->prefixlen, target)); - - /* Suffix */ - if (a6->prefixlen != 128) { - octets = 16 - a6->prefixlen / 8; - bits = a6->prefixlen % 8; - if (bits != 0) { - mask = 0xffU >> bits; - first = a6->in6_addr.s6_addr[16 - octets] & mask; - RETERR(uint8_tobuffer(first, target)); - octets--; - } - if (octets > 0) - RETERR(mem_tobuffer(target, - a6->in6_addr.s6_addr + 16 - octets, - octets)); - } - - if (a6->prefixlen == 0) - return (ISC_R_SUCCESS); - dns_name_toregion(&a6->prefix, ®ion); - return (isc_buffer_copyregion(target, ®ion)); -} - -static inline isc_result_t -tostruct_in_a6(ARGS_TOSTRUCT) { - dns_rdata_in_a6_t *a6 = target; - unsigned char octets; - dns_name_t name; - isc_region_t r; - - REQUIRE(rdata->type == 38); - REQUIRE(rdata->rdclass == 1); - REQUIRE(target != NULL); - REQUIRE(rdata->length != 0); - - a6->common.rdclass = rdata->rdclass; - a6->common.rdtype = rdata->type; - ISC_LINK_INIT(&a6->common, link); - - dns_rdata_toregion(rdata, &r); - - a6->prefixlen = uint8_fromregion(&r); - isc_region_consume(&r, 1); - memset(a6->in6_addr.s6_addr, 0, sizeof(a6->in6_addr.s6_addr)); - - /* - * Suffix. - */ - if (a6->prefixlen != 128) { - octets = 16 - a6->prefixlen / 8; - INSIST(r.length >= octets); - memcpy(a6->in6_addr.s6_addr + 16 - octets, r.base, octets); - isc_region_consume(&r, octets); - } - - /* - * Prefix. - */ - dns_name_init(&a6->prefix, NULL); - if (a6->prefixlen != 0) { - dns_name_init(&name, NULL); - dns_name_fromregion(&name, &r); - RETERR(name_duporclone(&name, mctx, &a6->prefix)); - } - a6->mctx = mctx; - return (ISC_R_SUCCESS); -} - -static inline void -freestruct_in_a6(ARGS_FREESTRUCT) { - dns_rdata_in_a6_t *a6 = source; - - REQUIRE(source != NULL); - REQUIRE(a6->common.rdclass == 1); - REQUIRE(a6->common.rdtype == 38); - - if (a6->mctx == NULL) - return; - - if (dns_name_dynamic(&a6->prefix)) - dns_name_free(&a6->prefix, a6->mctx); - a6->mctx = NULL; -} - -static inline isc_result_t -additionaldata_in_a6(ARGS_ADDLDATA) { - REQUIRE(rdata->type == 38); - REQUIRE(rdata->rdclass == 1); - - UNUSED(rdata); - UNUSED(add); - UNUSED(arg); - - return (ISC_R_SUCCESS); -} - -static inline isc_result_t -digest_in_a6(ARGS_DIGEST) { - isc_region_t r1, r2; - unsigned char prefixlen, octets; - isc_result_t result; - dns_name_t name; - - REQUIRE(rdata->type == 38); - REQUIRE(rdata->rdclass == 1); - - dns_rdata_toregion(rdata, &r1); - r2 = r1; - prefixlen = r1.base[0]; - octets = 1 + 16 - prefixlen / 8; - - r1.length = octets; - result = (digest)(arg, &r1); - if (result != ISC_R_SUCCESS) - return (result); - if (prefixlen == 0) - return (ISC_R_SUCCESS); - - isc_region_consume(&r2, octets); - dns_name_init(&name, NULL); - dns_name_fromregion(&name, &r2); - return (dns_name_digest(&name, digest, arg)); -} - -static inline isc_boolean_t -checkowner_in_a6(ARGS_CHECKOWNER) { - - REQUIRE(type == 38); - REQUIRE(rdclass == 1); - - UNUSED(type); - UNUSED(rdclass); - - return (dns_name_ishostname(name, wildcard)); -} - -static inline isc_boolean_t -checknames_in_a6(ARGS_CHECKNAMES) { - isc_region_t region; - dns_name_t name; - unsigned int prefixlen; - - REQUIRE(rdata->type == 38); - REQUIRE(rdata->rdclass == 1); - - UNUSED(owner); - - dns_rdata_toregion(rdata, ®ion); - prefixlen = uint8_fromregion(®ion); - if (prefixlen == 0) - return (ISC_TRUE); - isc_region_consume(®ion, 1 + 16 - prefixlen / 8); - 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_IN_1_A6_38_C */ |
