/*
* Copyright (C) 2004, 2005, 2007, 2008, 2011, 2012 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2001, 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.
*/
/* $Id$ */
/* Reviewed: Thu Mar 16 16:52:50 PST 2000 by bwelling */
/* RFC2915 */
#ifndef RDATA_GENERIC_NAPTR_35_C
#define RDATA_GENERIC_NAPTR_35_C
#define RRTYPE_NAPTR_ATTRIBUTES (0)
static inline isc_result_t
fromtext_naptr(ARGS_FROMTEXT) {
isc_token_t token;
dns_name_t name;
isc_buffer_t buffer;
REQUIRE(type == 35);
UNUSED(type);
UNUSED(rdclass);
UNUSED(callbacks);
/*
* Order.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
if (token.value.as_ulong > 0xffffU)
RETTOK(ISC_R_RANGE);
RETERR(uint16_tobuffer(token.value.as_ulong, target));
/*
* Preference.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
if (token.value.as_ulong > 0xffffU)
RETTOK(ISC_R_RANGE);
RETERR(uint16_tobuffer(token.value.as_ulong, target));
/*
* Flags.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,
ISC_FALSE));
RETTOK(txt_fromtext(&token.value.as_textregion, target));
/*
* Service.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,
ISC_FALSE));
RETTOK(txt_fromtext(&token.value.as_textregion, target));
/*
* Regexp.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,
ISC_FALSE));
RETTOK(txt_fromtext(&token.value.as_textregion, target));
/*
* Replacement.
*/
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));
return (ISC_R_SUCCESS);
}
static inline isc_result_t
totext_naptr(ARGS_TOTEXT) {
isc_region_t region;
dns_name_t name;
dns_name_t prefix;
isc_boolean_t sub;
char buf[sizeof("64000")];
unsigned short num;
REQUIRE(rdata->type == 35);
REQUIRE(rdata->length != 0);
dns_name_init(&name, NULL);
dns_name_init(&prefix, NULL);
dns_rdata_toregion(rdata, &region);
/*
* Order.
*/
num = uint16_fromregion(&region);
isc_region_consume(&region, 2);
sprintf(buf, "%u", num);
RETERR(str_totext(buf, target));
RETERR(str_totext(" ", target));
/*
* Preference.
*/
num = uint16_fromregion(&region);
isc_region_consume(&region, 2);
sprintf(buf, "%u", num);
RETERR(str_totext(buf, target));
RETERR(str_totext(" ", target));
/*
* Flags.
*/
RETERR(txt_totext(&region, target));
RETERR(str_totext(" ", target));
/*
* Service.
*/
RETERR(txt_totext(&region, target));
RETERR(str_totext(" ", target));
/*
* Regexp.
*/
RETERR(txt_totext(&region, target));
RETERR(str_totext(" ", target));
/*
* Replacement.
*/
dns_name_fromregion(&name, &region);
sub = name_prefix(&name, tctx->origin, &prefix);
return (dns_name_totext(&prefix, sub, target));
}
static inline isc_result_t
fromwire_naptr(ARGS_FROMWIRE) {
dns_name_t name;
isc_region_t sr;
REQUIRE(type == 35);
UNUSED(type);
UNUSED(rdclass);
dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
dns_name_init(&name, NULL);
/*
* Order, preference.
*/
isc_buffer_activeregion(source, &sr);
if (sr.length < 4)
return (ISC_R_UNEXPECTEDEND);
RETERR(mem_tobuffer(target, sr.base, 4));
isc_buffer_forward(source, 4);
/*
* Flags.
*/
RETERR(txt_fromwire(source, target));
/*
* Service.
*/
RETERR(txt_fromwire(source, target));
/*
* Regexp.
*/
RETERR(txt_fromwire(source, target));
/*
* Replacement.
*/
return (dns_name_fromwire(&name, source, dctx, options, target));
}
static inline isc_result_t
towire_naptr(ARGS_TOWIRE) {
dns_name_t name;
dns_offsets_t offsets;
isc_region_t sr;
REQUIRE(rdata->type == 35);
REQUIRE(rdata->length != 0);
dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
/*
* Order, preference.
*/
dns_rdata_toregion(rdata, &sr);
RETERR(mem_tobuffer(target, sr.base, 4));
isc_region_consume(&sr, 4);
/*
* Flags.
*/
RETERR(mem_tobuffer(target, sr.base, sr.base[0] + 1));
isc_region_consume(&sr, sr.base[0] + 1);
/*
* Service.
*/
RETERR(mem_tobuffer(target, sr.base, sr.base[0] + 1));
isc_region_consume(&sr, sr.base[0] + 1);
/*
* Regexp.
*/
RETERR(mem_tobuffer(target, sr.base, sr.base[0] + 1));
isc_region_consume(&sr, sr.base[0] + 1);
/*
* Replacement.
*/
dns_name_init(&name, offsets);
dns_name_fromregion(&name, &sr);
return (dns_name_towire(&name, cctx, target));
}
static inline int
compare_naptr(ARGS_COMPARE) {
dns_name_t name1;
dns_name_t name2;
isc_region_t region1;
isc_region_t region2;
int order, len;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == 35);
REQUIRE(rdata1->length != 0);
REQUIRE(rdata2->length != 0);
dns_rdata_toregion(rdata1, &region1);
dns_rdata_toregion(rdata2, &region2);
/*
* Order, preference.
*/
order = memcmp(region1.base, region2.base, 4);
if (order != 0)
return (order < 0 ? -1 : 1);
isc_region_consume(&region1, 4);
isc_region_consume(&region2, 4);
/*
* Flags.
*/
len = ISC_MIN(region1.base[0], region2.base[0]);
order = memcmp(region1.base, region2.base, len + 1);
if (order != 0)
return (order < 0 ? -1 : 1);
isc_region_consume(&region1, region1.base[0] + 1);
isc_region_consume(&region2, region2.base[0] + 1);
/*
* Service.
*/
len = ISC_MIN(region1.base[0], region2.base[0]);
order = memcmp(region1.base, region2.base, len + 1);
if (order != 0)
return (order < 0 ? -1 : 1);
isc_region_consume(&region1, region1.base[0] + 1);
isc_region_consume(&region2, region2.base[0] + 1);
/*
* Regexp.
*/
len = ISC_MIN(region1.base[0], region2.base[0]);
order = memcmp(region1.base, region2.base, len + 1);
if (order != 0)
return (order < 0 ? -1 : 1);
isc_region_consume(&region1, region1.base[0] + 1);
isc_region_consume(&region2, region2.base[0] + 1);
/*
* Replacement.
*/
dns_name_init(&name1, NULL);
dns_name_init(&name2, NULL);
dns_name_fromregion(&name1, &region1);
dns_name_fromregion(&name2, &region2);
return (dns_name_rdatacompare(&name1, &name2));
}
static inline isc_result_t
fromstruct_naptr(ARGS_FROMSTRUCT) {
dns_rdata_naptr_t *naptr = source;
isc_region_t region;
REQUIRE(type == 35);
REQUIRE(source != NULL);
REQUIRE(naptr->common.rdtype == type);
REQUIRE(naptr->common.rdclass == rdclass);
REQUIRE(naptr->flags != NULL || naptr->flags_len == 0);
REQUIRE(naptr->service != NULL || naptr->service_len == 0);
REQUIRE(naptr->regexp != NULL || naptr->regexp_len == 0);
UNUSED(type);
UNUSED(rdclass);
RETERR(uint16_tobuffer(naptr->order, target));
RETERR(uint16_tobuffer(naptr->preference, target));
RETERR(uint8_tobuffer(naptr->flags_len, target));
RETERR(mem_tobuffer(target, naptr->flags, naptr->flags_len));
RETERR(uint8_tobuffer(naptr->service_len, target));
RETERR(mem_tobuffer(target, naptr->service, naptr->service_len));
RETERR(uint8_tobuffer(naptr->regexp_len, target));
RETERR(mem_tobuffer(target, naptr->regexp, naptr->regexp_len));
dns_name_toregion(&naptr->replacement, &region);
return (isc_buffer_copyregion(target, &region));
}
static inline isc_result_t
tostruct_naptr(ARGS_TOSTRUCT) {
dns_rdata_naptr_t *naptr = target;
isc_region_t r;
isc_result_t result;
dns_name_t name;
REQUIRE(rdata->type == 35);
REQUIRE(target != NULL);
REQUIRE(rdata->length != 0);
naptr->common.rdclass = rdata->rdclass;
naptr->common.rdtype = rdata->type;
ISC_LINK_INIT(&naptr->common, link);
naptr->flags = NULL;
naptr->service = NULL;
naptr->regexp = NULL;
dns_rdata_toregion(rdata, &r);
naptr->order = uint16_fromregion(&r);
isc_region_consume(&r, 2);
naptr->preference = uint16_fromregion(&r);
isc_region_consume(&r, 2);
naptr->flags_len = uint8_fromregion(&r);
isc_region_consume(&r, 1);
INSIST(naptr->flags_len <= r.length);
naptr->flags = mem_maybedup(mctx, r.base, naptr->flags_len);
if (naptr->flags == NULL)
goto cleanup;
isc_region_consume(&r, naptr->flags_len);
naptr->service_len = uint8_fromregion(&r);
isc_region_consume(&r, 1);
INSIST(naptr->service_len <= r.length);
naptr->service = mem_maybedup(mctx, r.base, naptr->service_len);
if (naptr->service == NULL)
goto cleanup;
isc_region_consume(&r, naptr->service_len);
naptr->regexp_len = uint8_fromregion(&r);
isc_region_consume(&r, 1);
INSIST(naptr->regexp_len <= r.length);
naptr->regexp = mem_maybedup(mctx, r.base, naptr->regexp_len);
if (naptr->regexp == NULL)
goto cleanup;
isc_region_consume(&r, naptr->regexp_len);
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &r);
dns_name_init(&naptr->replacement, NULL);
result = name_duporclone(&name, mctx, &naptr->replacement);
if (result != ISC_R_SUCCESS)
goto cleanup;
naptr->mctx = mctx;
return (ISC_R_SUCCESS);
cleanup:
if (mctx != NULL && naptr->flags != NULL)
isc_mem_free(mctx, naptr->flags);
if (mctx != NULL && naptr->service != NULL)
isc_mem_free(mctx, naptr->service);
if (mctx != NULL && naptr->regexp != NULL)
isc_mem_free(mctx, naptr->regexp);
return (ISC_R_NOMEMORY);
}
static inline void
freestruct_naptr(ARGS_FREESTRUCT) {
dns_rdata_naptr_t *naptr = source;
REQUIRE(source != NULL);
REQUIRE(naptr->common.rdtype == 35);
if (naptr->mctx == NULL)
return;
if (naptr->flags != NULL)
isc_mem_free(naptr->mctx, naptr->flags);
if (naptr->service != NULL)
isc_mem_free(naptr->mctx, naptr->service);
if (naptr->regexp != NULL)
isc_mem_free(naptr->mctx, naptr->regexp);
dns_name_free(&naptr->replacement, naptr->mctx);
naptr->mctx = NULL;
}
static inline isc_result_t
additionaldata_naptr(ARGS_ADDLDATA) {
dns_name_t name;
dns_offsets_t offsets;
isc_region_t sr;
dns_rdatatype_t atype;
unsigned int i, flagslen;
char *cp;
REQUIRE(rdata->type == 35);
/*
* Order, preference.
*/
dns_rdata_toregion(rdata, &sr);
isc_region_consume(&sr, 4);
/*
* Flags.
*/
atype = 0;
flagslen = sr.base[0];
cp = (char *)&sr.base[1];
for (i = 0; i < flagslen; i++, cp++) {
if (*cp == 'S' || *cp == 's') {
atype = dns_rdatatype_srv;
break;
}
if (*cp == 'A' || *cp == 'a') {
atype = dns_rdatatype_a;
break;
}
}
isc_region_consume(&sr, flagslen + 1);
/*
* Service.
*/
isc_region_consume(&sr, sr.base[0] + 1);
/*
* Regexp.
*/
isc_region_consume(&sr, sr.base[0] + 1);
/*
* Replacement.
*/
dns_name_init(&name, offsets);
dns_name_fromregion(&name, &sr);
if (atype != 0)
return ((add)(arg, &name, atype));
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_naptr(ARGS_DIGEST) {
isc_region_t r1, r2;
unsigned int length, n;
isc_result_t result;
dns_name_t name;
REQUIRE(rdata->type == 35);
dns_rdata_toregion(rdata, &r1);
r2 = r1;
length = 0;
/*
* Order, preference.
*/
length += 4;
isc_region_consume(&r2, 4);
/*
* Flags.
*/
n = r2.base[0] + 1;
length += n;
isc_region_consume(&r2, n);
/*
* Service.
*/
n = r2.base[0] + 1;
length += n;
isc_region_consume(&r2, n);
/*
* Regexp.
*/
n = r2.base[0] + 1;
length += n;
isc_region_consume(&r2, n);
/*
* Digest the RR up to the replacement name.
*/
r1.length = length;
result = (digest)(arg, &r1);
if (result != ISC_R_SUCCESS)
return (result);
/*
* Replacement.
*/
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &r2);
return (dns_name_digest(&name, digest, arg));
}
static inline isc_boolean_t
checkowner_naptr(ARGS_CHECKOWNER) {
REQUIRE(type == 35);
UNUSED(name);
UNUSED(type);
UNUSED(rdclass);
UNUSED(wildcard);
return (ISC_TRUE);
}
static inline isc_boolean_t
checknames_naptr(ARGS_CHECKNAMES) {
REQUIRE(rdata->type == 35);
UNUSED(rdata);
UNUSED(owner);
UNUSED(bad);
return (ISC_TRUE);
}
#endif /* RDATA_GENERIC_NAPTR_35_C */