tkey_249.c revision ec5347e2c775f027573ce5648b910361aa926c01
/*
* Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2003 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: tkey_249.c,v 1.56 2007/06/18 23:47:43 tbox Exp $ */
/*
* Reviewed: Thu Mar 16 17:35:30 PST 2000 by halley.
*/
/* draft-ietf-dnsext-tkey-01.txt */
#ifndef RDATA_GENERIC_TKEY_249_C
#define RDATA_GENERIC_TKEY_249_C
#define RRTYPE_TKEY_ATTRIBUTES (DNS_RDATATYPEATTR_META)
static inline isc_result_t
fromtext_tkey(ARGS_FROMTEXT) {
isc_token_t token;
dns_rcode_t rcode;
dns_name_t name;
isc_buffer_t buffer;
long i;
char *e;
REQUIRE(type == 249);
UNUSED(type);
UNUSED(rdclass);
UNUSED(callbacks);
/*
* Algorithm.
*/
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));
/*
* Inception.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
RETERR(uint32_tobuffer(token.value.as_ulong, target));
/*
* Expiration.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
RETERR(uint32_tobuffer(token.value.as_ulong, target));
/*
* Mode.
*/
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));
/*
* Error.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
if (dns_tsigrcode_fromtext(&rcode, &token.value.as_textregion)
!= ISC_R_SUCCESS)
{
i = strtol(DNS_AS_STR(token), &e, 10);
if (*e != 0)
RETTOK(DNS_R_UNKNOWN);
if (i < 0 || i > 0xffff)
RETTOK(ISC_R_RANGE);
rcode = (dns_rcode_t)i;
}
RETERR(uint16_tobuffer(rcode, target));
/*
* Key Size.
*/
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));
/*
* Key Data.
*/
RETERR(isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong));
/*
* Other Size.
*/
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));
/*
* Other Data.
*/
return (isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong));
}
static inline isc_result_t
totext_tkey(ARGS_TOTEXT) {
isc_region_t sr, dr;
char buf[sizeof("4294967295 ")];
unsigned long n;
dns_name_t name;
dns_name_t prefix;
isc_boolean_t sub;
REQUIRE(rdata->type == 249);
REQUIRE(rdata->length != 0);
dns_rdata_toregion(rdata, &sr);
/*
* Algorithm.
*/
dns_name_init(&name, NULL);
dns_name_init(&prefix, NULL);
dns_name_fromregion(&name, &sr);
sub = name_prefix(&name, tctx->origin, &prefix);
RETERR(dns_name_totext(&prefix, sub, target));
RETERR(str_totext(" ", target));
isc_region_consume(&sr, name_length(&name));
/*
* Inception.
*/
n = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
sprintf(buf, "%lu ", n);
RETERR(str_totext(buf, target));
/*
* Expiration.
*/
n = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
sprintf(buf, "%lu ", n);
RETERR(str_totext(buf, target));
/*
* Mode.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
sprintf(buf, "%lu ", n);
RETERR(str_totext(buf, target));
/*
* Error.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
if (dns_tsigrcode_totext((dns_rcode_t)n, target) == ISC_R_SUCCESS)
RETERR(str_totext(" ", target));
else {
sprintf(buf, "%lu ", n);
RETERR(str_totext(buf, target));
}
/*
* Key Size.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
sprintf(buf, "%lu", n);
RETERR(str_totext(buf, target));
/*
* Key Data.
*/
REQUIRE(n <= sr.length);
dr = sr;
dr.length = n;
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
RETERR(str_totext(" (", target));
RETERR(str_totext(tctx->linebreak, target));
RETERR(isc_base64_totext(&dr, tctx->width - 2,
tctx->linebreak, target));
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
RETERR(str_totext(" ) ", target));
else
RETERR(str_totext(" ", target));
isc_region_consume(&sr, n);
/*
* Other Size.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
sprintf(buf, "%lu", n);
RETERR(str_totext(buf, target));
/*
* Other Data.
*/
REQUIRE(n <= sr.length);
if (n != 0U) {
dr = sr;
dr.length = n;
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
RETERR(str_totext(" (", target));
RETERR(str_totext(tctx->linebreak, target));
RETERR(isc_base64_totext(&dr, tctx->width - 2,
tctx->linebreak, target));
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
RETERR(str_totext(" )", target));
}
return (ISC_R_SUCCESS);
}
static inline isc_result_t
fromwire_tkey(ARGS_FROMWIRE) {
isc_region_t sr;
unsigned long n;
dns_name_t name;
REQUIRE(type == 249);
UNUSED(type);
UNUSED(rdclass);
dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
/*
* Algorithm.
*/
dns_name_init(&name, NULL);
RETERR(dns_name_fromwire(&name, source, dctx, options, target));
/*
* Inception: 4
* Expiration: 4
* Mode: 2
* Error: 2
*/
isc_buffer_activeregion(source, &sr);
if (sr.length < 12)
return (ISC_R_UNEXPECTEDEND);
RETERR(mem_tobuffer(target, sr.base, 12));
isc_region_consume(&sr, 12);
isc_buffer_forward(source, 12);
/*
* Key Length + Key Data.
*/
if (sr.length < 2)
return (ISC_R_UNEXPECTEDEND);
n = uint16_fromregion(&sr);
if (sr.length < n + 2)
return (ISC_R_UNEXPECTEDEND);
RETERR(mem_tobuffer(target, sr.base, n + 2));
isc_region_consume(&sr, n + 2);
isc_buffer_forward(source, n + 2);
/*
* Other Length + Other Data.
*/
if (sr.length < 2)
return (ISC_R_UNEXPECTEDEND);
n = uint16_fromregion(&sr);
if (sr.length < n + 2)
return (ISC_R_UNEXPECTEDEND);
isc_buffer_forward(source, n + 2);
return (mem_tobuffer(target, sr.base, n + 2));
}
static inline isc_result_t
towire_tkey(ARGS_TOWIRE) {
isc_region_t sr;
dns_name_t name;
dns_offsets_t offsets;
REQUIRE(rdata->type == 249);
REQUIRE(rdata->length != 0);
dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
/*
* Algorithm.
*/
dns_rdata_toregion(rdata, &sr);
dns_name_init(&name, offsets);
dns_name_fromregion(&name, &sr);
RETERR(dns_name_towire(&name, cctx, target));
isc_region_consume(&sr, name_length(&name));
return (mem_tobuffer(target, sr.base, sr.length));
}
static inline int
compare_tkey(ARGS_COMPARE) {
isc_region_t r1;
isc_region_t r2;
dns_name_t name1;
dns_name_t name2;
int order;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == 249);
REQUIRE(rdata1->length != 0);
REQUIRE(rdata2->length != 0);
/*
* Algorithm.
*/
dns_rdata_toregion(rdata1, &r1);
dns_rdata_toregion(rdata2, &r2);
dns_name_init(&name1, NULL);
dns_name_init(&name2, NULL);
dns_name_fromregion(&name1, &r1);
dns_name_fromregion(&name2, &r2);
if ((order = dns_name_rdatacompare(&name1, &name2)) != 0)
return (order);
isc_region_consume(&r1, name_length(&name1));
isc_region_consume(&r2, name_length(&name2));
return (isc_region_compare(&r1, &r2));
}
static inline isc_result_t
fromstruct_tkey(ARGS_FROMSTRUCT) {
dns_rdata_tkey_t *tkey = source;
REQUIRE(type == 249);
REQUIRE(source != NULL);
REQUIRE(tkey->common.rdtype == type);
REQUIRE(tkey->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
/*
* Algorithm Name.
*/
RETERR(name_tobuffer(&tkey->algorithm, target));
/*
* Inception: 32 bits.
*/
RETERR(uint32_tobuffer(tkey->inception, target));
/*
* Expire: 32 bits.
*/
RETERR(uint32_tobuffer(tkey->expire, target));
/*
* Mode: 16 bits.
*/
RETERR(uint16_tobuffer(tkey->mode, target));
/*
* Error: 16 bits.
*/
RETERR(uint16_tobuffer(tkey->error, target));
/*
* Key size: 16 bits.
*/
RETERR(uint16_tobuffer(tkey->keylen, target));
/*
* Key.
*/
RETERR(mem_tobuffer(target, tkey->key, tkey->keylen));
/*
* Other size: 16 bits.
*/
RETERR(uint16_tobuffer(tkey->otherlen, target));
/*
* Other data.
*/
return (mem_tobuffer(target, tkey->other, tkey->otherlen));
}
static inline isc_result_t
tostruct_tkey(ARGS_TOSTRUCT) {
dns_rdata_tkey_t *tkey = target;
dns_name_t alg;
isc_region_t sr;
REQUIRE(rdata->type == 249);
REQUIRE(target != NULL);
REQUIRE(rdata->length != 0);
tkey->common.rdclass = rdata->rdclass;
tkey->common.rdtype = rdata->type;
ISC_LINK_INIT(&tkey->common, link);
dns_rdata_toregion(rdata, &sr);
/*
* Algorithm Name.
*/
dns_name_init(&alg, NULL);
dns_name_fromregion(&alg, &sr);
dns_name_init(&tkey->algorithm, NULL);
RETERR(name_duporclone(&alg, mctx, &tkey->algorithm));
isc_region_consume(&sr, name_length(&tkey->algorithm));
/*
* Inception.
*/
tkey->inception = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
/*
* Expire.
*/
tkey->expire = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
/*
* Mode.
*/
tkey->mode = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Error.
*/
tkey->error = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Key size.
*/
tkey->keylen = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Key.
*/
tkey->key = mem_maybedup(mctx, sr.base, tkey->keylen);
if (tkey->key == NULL)
goto cleanup;
isc_region_consume(&sr, tkey->keylen);
/*
* Other size.
*/
tkey->otherlen = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Other.
*/
tkey->other = mem_maybedup(mctx, sr.base, tkey->otherlen);
if (tkey->other == NULL)
goto cleanup;
tkey->mctx = mctx;
return (ISC_R_SUCCESS);
cleanup:
if (mctx != NULL)
dns_name_free(&tkey->algorithm, mctx);
if (mctx != NULL && tkey->key != NULL)
isc_mem_free(mctx, tkey->key);
return (ISC_R_NOMEMORY);
}
static inline void
freestruct_tkey(ARGS_FREESTRUCT) {
dns_rdata_tkey_t *tkey = (dns_rdata_tkey_t *) source;
REQUIRE(source != NULL);
if (tkey->mctx == NULL)
return;
dns_name_free(&tkey->algorithm, tkey->mctx);
if (tkey->key != NULL)
isc_mem_free(tkey->mctx, tkey->key);
if (tkey->other != NULL)
isc_mem_free(tkey->mctx, tkey->other);
tkey->mctx = NULL;
}
static inline isc_result_t
additionaldata_tkey(ARGS_ADDLDATA) {
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
REQUIRE(rdata->type == 249);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_tkey(ARGS_DIGEST) {
UNUSED(rdata);
UNUSED(digest);
UNUSED(arg);
REQUIRE(rdata->type == 249);
return (ISC_R_NOTIMPLEMENTED);
}
static inline isc_boolean_t
checkowner_tkey(ARGS_CHECKOWNER) {
REQUIRE(type == 249);
UNUSED(name);
UNUSED(type);
UNUSED(rdclass);
UNUSED(wildcard);
return (ISC_TRUE);
}
static inline isc_boolean_t
checknames_tkey(ARGS_CHECKNAMES) {
REQUIRE(rdata->type == 249);
UNUSED(rdata);
UNUSED(owner);
UNUSED(bad);
return (ISC_TRUE);
}
#endif /* RDATA_GENERIC_TKEY_249_C */