diff options
Diffstat (limited to 'lib/dns/rdata/generic/soa_6.c')
| -rw-r--r-- | lib/dns/rdata/generic/soa_6.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/lib/dns/rdata/generic/soa_6.c b/lib/dns/rdata/generic/soa_6.c new file mode 100644 index 00000000..4b7078d1 --- /dev/null +++ b/lib/dns/rdata/generic/soa_6.c @@ -0,0 +1,362 @@ +/* + * Copyright (C) 1998, 1999, 2000 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. + */ + + /* $Id: soa_6.c,v 1.27 2000/02/03 23:43:07 halley Exp $ */ + +#ifndef RDATA_GENERIC_SOA_6_C +#define RDATA_GENERIC_SOA_6_C + +static inline isc_result_t +fromtext_soa(dns_rdataclass_t rdclass, dns_rdatatype_t type, + isc_lex_t *lexer, dns_name_t *origin, + isc_boolean_t downcase, isc_buffer_t *target) +{ + isc_token_t token; + dns_name_t name; + isc_buffer_t buffer; + int i; + isc_uint32_t n; + + REQUIRE(type == 6); + + rdclass = rdclass; /*unused*/ + + for (i = 0 ; i < 2 ; i++) { + RETERR(gettoken(lexer, &token, isc_tokentype_string, + ISC_FALSE)); + + dns_name_init(&name, NULL); + buffer_fromregion(&buffer, &token.value.as_region, + ISC_BUFFERTYPE_TEXT); + origin = (origin != NULL) ? origin : dns_rootname; + RETERR(dns_name_fromtext(&name, &buffer, origin, + downcase, target)); + } + + RETERR(gettoken(lexer, &token, isc_tokentype_number, + ISC_FALSE)); + RETERR(uint32_tobuffer(token.value.as_ulong, target)); + for (i = 0; i < 4; i++) { + RETERR(gettoken(lexer, &token, isc_tokentype_string, + ISC_FALSE)); + RETERR(dns_counter_fromtext(&token.value.as_textregion, &n)); + RETERR(uint32_tobuffer(n, target)); + } + + return (DNS_R_SUCCESS); +} + +static char *soa_fieldnames[5] = { + "serial", "refresh", "retry", "expire", "minimum" +} ; + +static inline isc_result_t +totext_soa(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx, + isc_buffer_t *target) +{ + isc_region_t dregion; + dns_name_t mname; + dns_name_t rname; + dns_name_t prefix; + isc_boolean_t sub; + int i; + + REQUIRE(rdata->type == 6); + + dns_name_init(&mname, NULL); + dns_name_init(&rname, NULL); + dns_name_init(&prefix, NULL); + + dns_rdata_toregion(rdata, &dregion); + + dns_name_fromregion(&mname, &dregion); + isc_region_consume(&dregion, name_length(&mname)); + + dns_name_fromregion(&rname, &dregion); + isc_region_consume(&dregion, name_length(&rname)); + + sub = name_prefix(&mname, tctx->origin, &prefix); + RETERR(dns_name_totext(&prefix, sub, target)); + + RETERR(str_totext(" ", target)); + + sub = name_prefix(&rname, tctx->origin, &prefix); + RETERR(dns_name_totext(&prefix, sub, target)); + + RETERR(str_totext(" (" , target)); + RETERR(str_totext(tctx->linebreak, target)); + + for (i = 0; i < 5 ; i++) { + char buf[sizeof "2147483647"]; + unsigned long num; + unsigned int numlen; + num = uint32_fromregion(&dregion); + isc_region_consume(&dregion, 4); + numlen = sprintf(buf, "%lu", num); + INSIST(numlen > 0 && numlen < sizeof "2147483647"); + RETERR(str_totext(buf, target)); + if ((tctx->flags & (DNS_STYLEFLAG_MULTILINE | + DNS_STYLEFLAG_COMMENT)) == + (DNS_STYLEFLAG_MULTILINE | + DNS_STYLEFLAG_COMMENT)) + { + RETERR(str_totext(" ; " + numlen, target)); + RETERR(str_totext(soa_fieldnames[i], target)); + /* Print times in week/day/hour/minute/second form */ + if (i >= 1) { + RETERR(str_totext(" (", target)); + RETERR(dns_ttl_totext(num, ISC_TRUE, target)); + RETERR(str_totext(")", target)); + } + RETERR(str_totext(tctx->linebreak, target)); + } else { + RETERR(str_totext(" ", target)); + } + } + + RETERR(str_totext(")", target)); + + return (DNS_R_SUCCESS); +} + +static inline isc_result_t +fromwire_soa(dns_rdataclass_t rdclass, dns_rdatatype_t type, + isc_buffer_t *source, dns_decompress_t *dctx, + isc_boolean_t downcase, isc_buffer_t *target) +{ + dns_name_t mname; + dns_name_t rname; + isc_region_t sregion; + isc_region_t tregion; + + REQUIRE(type == 6); + + rdclass = rdclass; /*unused*/ + + if (dns_decompress_edns(dctx) >= 1 || !dns_decompress_strict(dctx)) + dns_decompress_setmethods(dctx, DNS_COMPRESS_ALL); + else + dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14); + + dns_name_init(&mname, NULL); + dns_name_init(&rname, NULL); + + RETERR(dns_name_fromwire(&mname, source, dctx, downcase, target)); + RETERR(dns_name_fromwire(&rname, source, dctx, downcase, target)); + + isc_buffer_active(source, &sregion); + isc_buffer_available(target, &tregion); + + if (sregion.length < 20) + return (DNS_R_UNEXPECTEDEND); + if (tregion.length < 20) + return (DNS_R_NOSPACE); + + memcpy(tregion.base, sregion.base, 20); + isc_buffer_forward(source, 20); + isc_buffer_add(target, 20); + return (DNS_R_SUCCESS); +} + +static inline isc_result_t +towire_soa(dns_rdata_t *rdata, dns_compress_t *cctx, isc_buffer_t *target) { + isc_region_t sregion; + isc_region_t tregion; + dns_name_t mname; + dns_name_t rname; + + REQUIRE(rdata->type == 6); + + if (dns_compress_getedns(cctx) >= 1) + dns_compress_setmethods(cctx, DNS_COMPRESS_ALL); + else + dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14); + + dns_name_init(&mname, NULL); + dns_name_init(&rname, NULL); + + dns_rdata_toregion(rdata, &sregion); + dns_name_fromregion(&mname, &sregion); + isc_region_consume(&sregion, name_length(&mname)); + RETERR(dns_name_towire(&mname, cctx, target)); + + dns_name_fromregion(&rname, &sregion); + isc_region_consume(&sregion, name_length(&rname)); + RETERR(dns_name_towire(&rname, cctx, target)); + + isc_buffer_available(target, &tregion); + if (tregion.length < 20) + return (DNS_R_NOSPACE); + + memcpy(tregion.base, sregion.base, 20); + isc_buffer_add(target, 20); + return (DNS_R_SUCCESS); +} + +static inline int +compare_soa(dns_rdata_t *rdata1, dns_rdata_t *rdata2) { + isc_region_t region1; + isc_region_t region2; + dns_name_t name1; + dns_name_t name2; + int result; + + REQUIRE(rdata1->type == rdata2->type); + REQUIRE(rdata1->rdclass == rdata2->rdclass); + REQUIRE(rdata1->type == 6); + + 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); + + result = dns_name_rdatacompare(&name1, &name2); + if (result != 0) + return (result); + + isc_region_consume(®ion1, name_length(&name1)); + isc_region_consume(®ion2, name_length(&name2)); + + dns_name_init(&name1, NULL); + dns_name_init(&name2, NULL); + + dns_name_fromregion(&name1, ®ion1); + dns_name_fromregion(&name2, ®ion2); + + result = dns_name_rdatacompare(&name1, &name2); + if (result != 0) + return (result); + + isc_region_consume(®ion1, name_length(&name1)); + isc_region_consume(®ion2, name_length(&name2)); + + return (compare_region(®ion1, ®ion2)); +} + +static inline isc_result_t +fromstruct_soa(dns_rdataclass_t rdclass, dns_rdatatype_t type, void *source, + isc_buffer_t *target) +{ + REQUIRE(type == 6); + + rdclass = rdclass; /*unused*/ + + source = source; + target = target; + + return (DNS_R_NOTIMPLEMENTED); +} + +static inline isc_result_t +tostruct_soa(dns_rdata_t *rdata, void *target, isc_mem_t *mctx) { + isc_region_t region; + dns_rdata_soa_t *soa = target; + dns_name_t name; + isc_result_t result; + + REQUIRE(rdata->type == 6); + REQUIRE(target != NULL); + + soa->common.rdclass = rdata->rdclass; + soa->common.rdtype = rdata->type; + ISC_LINK_INIT(&soa->common, link); + + soa->mctx = mctx; + + 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(&soa->origin, NULL); + result = dns_name_dup(&name, soa->mctx, &soa->origin); + if (result != DNS_R_SUCCESS) + return (result); + + dns_name_fromregion(&name, ®ion); + isc_region_consume(®ion, name_length(&name)); + dns_name_init(&soa->mname, NULL); + result = dns_name_dup(&name, soa->mctx, &soa->mname); + if (result != DNS_R_SUCCESS) + return (result); + + soa->serial = uint32_fromregion(®ion); + isc_region_consume(®ion, 4); + soa->refresh = uint32_fromregion(®ion); + isc_region_consume(®ion, 4); + soa->retry = uint32_fromregion(®ion); + isc_region_consume(®ion, 4); + soa->expire = uint32_fromregion(®ion); + isc_region_consume(®ion, 4); + soa->minimum = uint32_fromregion(®ion); + + return (DNS_R_SUCCESS); +} + +static inline void +freestruct_soa(void *source) { + dns_rdata_soa_t *soa = source; + + REQUIRE(source != NULL); + REQUIRE(soa->common.rdtype == 6); + dns_name_free(&soa->origin, soa->mctx); + dns_name_free(&soa->mname, soa->mctx); + soa->mctx = NULL; + /* No action required */ +} + +static inline isc_result_t +additionaldata_soa(dns_rdata_t *rdata, dns_additionaldatafunc_t add, + void *arg) +{ + REQUIRE(rdata->type == 6); + + (void)add; + (void)arg; + + return (DNS_R_SUCCESS); +} + +static inline isc_result_t +digest_soa(dns_rdata_t *rdata, dns_digestfunc_t digest, void *arg) { + isc_region_t r; + dns_name_t name; + isc_result_t result; + + REQUIRE(rdata->type == 6); + + dns_rdata_toregion(rdata, &r); + dns_name_init(&name, NULL); + dns_name_fromregion(&name, &r); + result = dns_name_digest(&name, digest, arg); + if (result != DNS_R_SUCCESS) + return (result); + isc_region_consume(&r, name_length(&name)); + dns_name_init(&name, NULL); + dns_name_fromregion(&name, &r); + result = dns_name_digest(&name, digest, arg); + if (result != DNS_R_SUCCESS) + return (result); + isc_region_consume(&r, name_length(&name)); + + return ((digest)(arg, &r)); +} + +#endif /* RDATA_GENERIC_SOA_6_C */ |