diff options
Diffstat (limited to 'contrib/bind9/lib/dns/rdata/generic/nsec_47.c')
| -rw-r--r-- | contrib/bind9/lib/dns/rdata/generic/nsec_47.c | 396 |
1 files changed, 0 insertions, 396 deletions
diff --git a/contrib/bind9/lib/dns/rdata/generic/nsec_47.c b/contrib/bind9/lib/dns/rdata/generic/nsec_47.c deleted file mode 100644 index 095f42e..0000000 --- a/contrib/bind9/lib/dns/rdata/generic/nsec_47.c +++ /dev/null @@ -1,396 +0,0 @@ -/* - * Copyright (C) 2004, 2007-2009, 2011 Internet Systems Consortium, Inc. ("ISC") - * Copyright (C) 2003 Internet Software Consortium. - * - * Permission to use, copy, modify, and/or 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: nsec_47.c,v 1.15 2011/01/13 04:59:26 tbox Exp $ */ - -/* reviewed: Wed Mar 15 18:21:15 PST 2000 by brister */ - -/* RFC 3845 */ - -#ifndef RDATA_GENERIC_NSEC_47_C -#define RDATA_GENERIC_NSEC_47_C - -/* - * The attributes do not include DNS_RDATATYPEATTR_SINGLETON - * because we must be able to handle a parent/child NSEC pair. - */ -#define RRTYPE_NSEC_ATTRIBUTES (DNS_RDATATYPEATTR_DNSSEC) - -static inline isc_result_t -fromtext_nsec(ARGS_FROMTEXT) { - isc_token_t token; - dns_name_t name; - isc_buffer_t buffer; - unsigned char bm[8*1024]; /* 64k bits */ - dns_rdatatype_t covered; - int octet; - int window; - - REQUIRE(type == 47); - - UNUSED(type); - UNUSED(rdclass); - UNUSED(callbacks); - - /* - * Next domain. - */ - 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)); - - memset(bm, 0, sizeof(bm)); - do { - RETERR(isc_lex_getmastertoken(lexer, &token, - isc_tokentype_string, ISC_TRUE)); - if (token.type != isc_tokentype_string) - break; - RETTOK(dns_rdatatype_fromtext(&covered, - &token.value.as_textregion)); - bm[covered/8] |= (0x80>>(covered%8)); - } while (1); - isc_lex_ungettoken(lexer, &token); - for (window = 0; window < 256 ; window++) { - /* - * Find if we have a type in this window. - */ - for (octet = 31; octet >= 0; octet--) - if (bm[window * 32 + octet] != 0) - break; - if (octet < 0) - continue; - RETERR(uint8_tobuffer(window, target)); - RETERR(uint8_tobuffer(octet + 1, target)); - RETERR(mem_tobuffer(target, &bm[window * 32], octet + 1)); - } - return (ISC_R_SUCCESS); -} - -static inline isc_result_t -totext_nsec(ARGS_TOTEXT) { - isc_region_t sr; - unsigned int i, j, k; - dns_name_t name; - unsigned int window, len; - - REQUIRE(rdata->type == 47); - REQUIRE(rdata->length != 0); - - UNUSED(tctx); - - dns_name_init(&name, NULL); - dns_rdata_toregion(rdata, &sr); - dns_name_fromregion(&name, &sr); - isc_region_consume(&sr, name_length(&name)); - RETERR(dns_name_totext(&name, ISC_FALSE, target)); - - - for (i = 0; i < sr.length; i += len) { - INSIST(i + 2 <= sr.length); - window = sr.base[i]; - len = sr.base[i + 1]; - INSIST(len > 0 && len <= 32); - i += 2; - INSIST(i + len <= sr.length); - for (j = 0; j < len; j++) { - dns_rdatatype_t t; - if (sr.base[i + j] == 0) - continue; - for (k = 0; k < 8; k++) { - if ((sr.base[i + j] & (0x80 >> k)) == 0) - continue; - t = window * 256 + j * 8 + k; - RETERR(str_totext(" ", target)); - if (dns_rdatatype_isknown(t)) { - RETERR(dns_rdatatype_totext(t, target)); - } else { - char buf[sizeof("TYPE65535")]; - sprintf(buf, "TYPE%u", t); - RETERR(str_totext(buf, target)); - } - } - } - } - return (ISC_R_SUCCESS); -} - -static /* inline */ isc_result_t -fromwire_nsec(ARGS_FROMWIRE) { - isc_region_t sr; - dns_name_t name; - unsigned int window, lastwindow = 0; - unsigned int len; - isc_boolean_t first = ISC_TRUE; - unsigned int i; - - REQUIRE(type == 47); - - UNUSED(type); - UNUSED(rdclass); - - dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); - - dns_name_init(&name, NULL); - RETERR(dns_name_fromwire(&name, source, dctx, options, target)); - - isc_buffer_activeregion(source, &sr); - for (i = 0; i < sr.length; i += len) { - /* - * Check for overflow. - */ - if (i + 2 > sr.length) - RETERR(DNS_R_FORMERR); - window = sr.base[i]; - len = sr.base[i + 1]; - i += 2; - /* - * Check that bitmap windows are in the correct order. - */ - if (!first && window <= lastwindow) - RETERR(DNS_R_FORMERR); - /* - * Check for legal lengths. - */ - if (len < 1 || len > 32) - RETERR(DNS_R_FORMERR); - /* - * Check for overflow. - */ - if (i + len > sr.length) - RETERR(DNS_R_FORMERR); - /* - * The last octet of the bitmap must be non zero. - */ - if (sr.base[i + len - 1] == 0) - RETERR(DNS_R_FORMERR); - lastwindow = window; - first = ISC_FALSE; - } - if (i != sr.length) - return (DNS_R_EXTRADATA); - if (first) - RETERR(DNS_R_FORMERR); - RETERR(mem_tobuffer(target, sr.base, sr.length)); - isc_buffer_forward(source, sr.length); - return (ISC_R_SUCCESS); -} - -static inline isc_result_t -towire_nsec(ARGS_TOWIRE) { - isc_region_t sr; - dns_name_t name; - dns_offsets_t offsets; - - REQUIRE(rdata->type == 47); - REQUIRE(rdata->length != 0); - - dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); - dns_name_init(&name, offsets); - dns_rdata_toregion(rdata, &sr); - dns_name_fromregion(&name, &sr); - isc_region_consume(&sr, name_length(&name)); - RETERR(dns_name_towire(&name, cctx, target)); - - return (mem_tobuffer(target, sr.base, sr.length)); -} - -static inline int -compare_nsec(ARGS_COMPARE) { - isc_region_t r1; - isc_region_t r2; - - REQUIRE(rdata1->type == rdata2->type); - REQUIRE(rdata1->rdclass == rdata2->rdclass); - REQUIRE(rdata1->type == 47); - REQUIRE(rdata1->length != 0); - REQUIRE(rdata2->length != 0); - - dns_rdata_toregion(rdata1, &r1); - dns_rdata_toregion(rdata2, &r2); - return (isc_region_compare(&r1, &r2)); -} - -static inline isc_result_t -fromstruct_nsec(ARGS_FROMSTRUCT) { - dns_rdata_nsec_t *nsec = source; - isc_region_t region; - unsigned int i, len, window, lastwindow = 0; - isc_boolean_t first = ISC_TRUE; - - REQUIRE(type == 47); - REQUIRE(source != NULL); - REQUIRE(nsec->common.rdtype == type); - REQUIRE(nsec->common.rdclass == rdclass); - REQUIRE(nsec->typebits != NULL || nsec->len == 0); - - UNUSED(type); - UNUSED(rdclass); - - dns_name_toregion(&nsec->next, ®ion); - RETERR(isc_buffer_copyregion(target, ®ion)); - /* - * Perform sanity check. - */ - for (i = 0; i < nsec->len ; i += len) { - INSIST(i + 2 <= nsec->len); - window = nsec->typebits[i]; - len = nsec->typebits[i+1]; - i += 2; - INSIST(first || window > lastwindow); - INSIST(len > 0 && len <= 32); - INSIST(i + len <= nsec->len); - INSIST(nsec->typebits[i + len - 1] != 0); - lastwindow = window; - first = ISC_FALSE; - } - INSIST(!first); - return (mem_tobuffer(target, nsec->typebits, nsec->len)); -} - -static inline isc_result_t -tostruct_nsec(ARGS_TOSTRUCT) { - isc_region_t region; - dns_rdata_nsec_t *nsec = target; - dns_name_t name; - - REQUIRE(rdata->type == 47); - REQUIRE(target != NULL); - REQUIRE(rdata->length != 0); - - nsec->common.rdclass = rdata->rdclass; - nsec->common.rdtype = rdata->type; - ISC_LINK_INIT(&nsec->common, link); - - dns_name_init(&name, NULL); - dns_rdata_toregion(rdata, ®ion); - dns_name_fromregion(&name, ®ion); - isc_region_consume(®ion, name_length(&name)); - dns_name_init(&nsec->next, NULL); - RETERR(name_duporclone(&name, mctx, &nsec->next)); - - nsec->len = region.length; - nsec->typebits = mem_maybedup(mctx, region.base, region.length); - if (nsec->typebits == NULL) - goto cleanup; - - nsec->mctx = mctx; - return (ISC_R_SUCCESS); - - cleanup: - if (mctx != NULL) - dns_name_free(&nsec->next, mctx); - return (ISC_R_NOMEMORY); -} - -static inline void -freestruct_nsec(ARGS_FREESTRUCT) { - dns_rdata_nsec_t *nsec = source; - - REQUIRE(source != NULL); - REQUIRE(nsec->common.rdtype == 47); - - if (nsec->mctx == NULL) - return; - - dns_name_free(&nsec->next, nsec->mctx); - if (nsec->typebits != NULL) - isc_mem_free(nsec->mctx, nsec->typebits); - nsec->mctx = NULL; -} - -static inline isc_result_t -additionaldata_nsec(ARGS_ADDLDATA) { - REQUIRE(rdata->type == 47); - - UNUSED(rdata); - UNUSED(add); - UNUSED(arg); - - return (ISC_R_SUCCESS); -} - -static inline isc_result_t -digest_nsec(ARGS_DIGEST) { - isc_region_t r; - - REQUIRE(rdata->type == 47); - - dns_rdata_toregion(rdata, &r); - return ((digest)(arg, &r)); -} - -static inline isc_boolean_t -checkowner_nsec(ARGS_CHECKOWNER) { - - REQUIRE(type == 47); - - UNUSED(name); - UNUSED(type); - UNUSED(rdclass); - UNUSED(wildcard); - - return (ISC_TRUE); -} - -static inline isc_boolean_t -checknames_nsec(ARGS_CHECKNAMES) { - - REQUIRE(rdata->type == 47); - - UNUSED(rdata); - UNUSED(owner); - UNUSED(bad); - - return (ISC_TRUE); -} - -static inline int -casecompare_nsec(ARGS_COMPARE) { - isc_region_t region1; - isc_region_t region2; - dns_name_t name1; - dns_name_t name2; - int order; - - REQUIRE(rdata1->type == rdata2->type); - REQUIRE(rdata1->rdclass == rdata2->rdclass); - REQUIRE(rdata1->type == 47); - REQUIRE(rdata1->length != 0); - REQUIRE(rdata2->length != 0); - - dns_name_init(&name1, NULL); - dns_name_init(&name2, NULL); - - dns_rdata_toregion(rdata1, ®ion1); - dns_rdata_toregion(rdata2, ®ion2); - - dns_name_fromregion(&name1, ®ion1); - dns_name_fromregion(&name2, ®ion2); - - order = dns_name_rdatacompare(&name1, &name2); - if (order != 0) - return (order); - - isc_region_consume(®ion1, name_length(&name1)); - isc_region_consume(®ion2, name_length(&name2)); - - return (isc_region_compare(®ion1, ®ion2)); -} -#endif /* RDATA_GENERIC_NSEC_47_C */ |
