tsig_250.c revision 40f53fa8d9c6a4fc38c0014495e7a42b08f52481
/*
* Copyright (C) 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: tsig_250.c,v 1.43 2000/08/01 01:25:04 tale Exp $ */
/* Reviewed: Thu Mar 16 13:39:43 PST 2000 by gson */
#ifndef RDATA_ANY_255_TSIG_250_C
#define RDATA_ANY_255_TSIG_250_C
#define RRTYPE_TSIG_ATTRIBUTES \
(DNS_RDATATYPEATTR_META | DNS_RDATATYPEATTR_NOTQUESTION)
static inline isc_result_t
fromtext_any_tsig(ARGS_FROMTEXT) {
isc_token_t token;
dns_name_t name;
isc_uint64_t sigtime;
isc_buffer_t buffer;
dns_rcode_t rcode;
long i;
char *e;
REQUIRE(type == 250);
REQUIRE(rdclass == 255);
/*
* Algorithm Name.
*/
RETERR(gettoken(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;
RETERR(dns_name_fromtext(&name, &buffer, origin, downcase, target));
/*
* Time Signed: 48 bits.
*/
RETERR(gettoken(lexer, &token, isc_tokentype_string, ISC_FALSE));
sigtime = isc_string_touint64(token.value.as_pointer, &e, 10);
if (*e != 0)
return (DNS_R_SYNTAX);
if ((sigtime >> 48) != 0)
return (ISC_R_RANGE);
RETERR(uint16_tobuffer((isc_uint16_t)(sigtime >> 32), target));
RETERR(uint32_tobuffer((isc_uint32_t)(sigtime & 0xffffffffU), target));
/*
* Fudge.
*/
RETERR(gettoken(lexer, &token, isc_tokentype_number, ISC_FALSE));
if (token.value.as_ulong > 0xffff)
return (ISC_R_RANGE);
RETERR(uint16_tobuffer(token.value.as_ulong, target));
/*
* Signature Size.
*/
RETERR(gettoken(lexer, &token, isc_tokentype_number, ISC_FALSE));
if (token.value.as_ulong > 0xffff)
return (ISC_R_RANGE);
RETERR(uint16_tobuffer(token.value.as_ulong, target));
/*
* Signature.
*/
RETERR(isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong));
/*
* Original ID.
*/
RETERR(gettoken(lexer, &token, isc_tokentype_number, ISC_FALSE));
if (token.value.as_ulong > 0xffff)
return (ISC_R_RANGE);
RETERR(uint16_tobuffer(token.value.as_ulong, target));
/*
* Error.
*/
RETERR(gettoken(lexer, &token, isc_tokentype_string, ISC_FALSE));
if (dns_tsigrcode_fromtext(&rcode, &token.value.as_textregion)
!= ISC_R_SUCCESS)
{
i = strtol(token.value.as_pointer, &e, 10);
if (*e != 0)
return (DNS_R_UNKNOWN);
if (i < 0 || i > 0xffff)
return (ISC_R_RANGE);
rcode = (dns_rcode_t)i;
}
RETERR(uint16_tobuffer(rcode, target));
/*
* Other Len.
*/
RETERR(gettoken(lexer, &token, isc_tokentype_number, ISC_FALSE));
if (token.value.as_ulong > 0xffff)
return (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_any_tsig(ARGS_TOTEXT) {
isc_region_t sr;
isc_region_t sigr;
char buf[sizeof "281474976710655 "];
char *bufp;
dns_name_t name;
dns_name_t prefix;
isc_boolean_t sub;
isc_uint64_t sigtime;
unsigned short n;
REQUIRE(rdata->type == 250);
REQUIRE(rdata->rdclass == 255);
dns_rdata_toregion(rdata, &sr);
/*
* Algorithm Name.
*/
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));
/*
* Time Signed.
*/
sigtime = ((isc_uint64_t)sr.base[0] << 40) |
((isc_uint64_t)sr.base[1] << 32) |
(sr.base[2] << 24) | (sr.base[3] << 16) |
(sr.base[4] << 8) | sr.base[5];
isc_region_consume(&sr, 6);
bufp = &buf[sizeof buf - 1];
*bufp-- = 0;
*bufp-- = ' ';
do {
*bufp-- = decdigits[sigtime % 10];
sigtime /= 10;
} while (sigtime != 0);
bufp++;
RETERR(str_totext(bufp, target));
/*
* Fudge.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
sprintf(buf, "%u ", n);
RETERR(str_totext(buf, target));
/*
* Signature Size.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
sprintf(buf, "%u", n);
RETERR(str_totext(buf, target));
/*
* Signature.
*/
REQUIRE(n <= sr.length);
sigr = sr;
sigr.length = n;
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
RETERR(str_totext(" (", target));
RETERR(str_totext(tctx->linebreak, target));
RETERR(isc_base64_totext(&sigr, 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);
/*
* Original ID.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
sprintf(buf, "%u ", 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, "%u ", n);
RETERR(str_totext(buf, target));
}
/*
* Other Size.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
sprintf(buf, "%u ", n);
RETERR(str_totext(buf, target));
/*
* Other.
*/
return (isc_base64_totext(&sr, 60, " ", target));
}
static inline isc_result_t
fromwire_any_tsig(ARGS_FROMWIRE) {
isc_region_t sr;
dns_name_t name;
unsigned long n;
REQUIRE(type == 250);
REQUIRE(rdclass == 255);
dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
/*
* Algorithm Name.
*/
dns_name_init(&name, NULL);
RETERR(dns_name_fromwire(&name, source, dctx, downcase, target));
isc_buffer_activeregion(source, &sr);
/*
* Time Signed + Fudge.
*/
if (sr.length < 8)
return (ISC_R_UNEXPECTEDEND);
RETERR(mem_tobuffer(target, sr.base, 8));
isc_region_consume(&sr, 8);
isc_buffer_forward(source, 8);
/*
* Signature Length + Signature.
*/
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);
/*
* Original ID + Error.
*/
if (sr.length < 4)
return (ISC_R_UNEXPECTEDEND);
RETERR(mem_tobuffer(target, sr.base, 4));
isc_region_consume(&sr, 4);
isc_buffer_forward(source, 4);
/*
* Other Length + Other.
*/
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_any_tsig(ARGS_TOWIRE) {
isc_region_t sr;
dns_name_t name;
REQUIRE(rdata->type == 250);
REQUIRE(rdata->rdclass == 255);
dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
dns_rdata_toregion(rdata, &sr);
dns_name_init(&name, NULL);
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_any_tsig(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 == 250);
REQUIRE(rdata1->rdclass == 255);
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);
order = dns_name_rdatacompare(&name1, &name2);
if (order != 0)
return (order);
isc_region_consume(&r1, name_length(&name1));
isc_region_consume(&r2, name_length(&name2));
return (compare_region(&r1, &r2));
}
static inline isc_result_t
fromstruct_any_tsig(ARGS_FROMSTRUCT) {
dns_rdata_any_tsig_t *tsig = source;
isc_region_t tr;
REQUIRE(type == 250);
REQUIRE(rdclass == 255);
REQUIRE(source != NULL);
REQUIRE(tsig->common.rdclass == rdclass);
REQUIRE(tsig->common.rdtype == type);
/*
* Algorithm Name.
*/
RETERR(name_tobuffer(&tsig->algorithm, target));
isc_buffer_availableregion(target, &tr);
if (tr.length < 6 + 2 + 2)
return (ISC_R_NOSPACE);
/*
* Time Signed: 48 bits.
*/
RETERR(uint16_tobuffer((isc_uint16_t)(tsig->timesigned >> 32),
target));
RETERR(uint32_tobuffer((isc_uint32_t)(tsig->timesigned & 0xffffffffU),
target));
/*
* Fudge.
*/
RETERR(uint16_tobuffer(tsig->fudge, target));
/*
* Signature Size.
*/
RETERR(uint16_tobuffer(tsig->siglen, target));
/*
* Signature.
*/
RETERR(mem_tobuffer(target, tsig->signature, tsig->siglen));
isc_buffer_availableregion(target, &tr);
if (tr.length < 2 + 2 + 2)
return (ISC_R_NOSPACE);
/*
* Original ID.
*/
RETERR(uint16_tobuffer(tsig->originalid, target));
/*
* Error.
*/
RETERR(uint16_tobuffer(tsig->error, target));
/*
* Other Len.
*/
RETERR(uint16_tobuffer(tsig->otherlen, target));
/*
* Other Data.
*/
return (mem_tobuffer(target, tsig->other, tsig->otherlen));
}
static inline isc_result_t
tostruct_any_tsig(ARGS_TOSTRUCT) {
dns_rdata_any_tsig_t *tsig;
dns_name_t alg;
isc_region_t sr;
REQUIRE(rdata->type == 250);
REQUIRE(rdata->rdclass == 255);
tsig = (dns_rdata_any_tsig_t *) target;
tsig->common.rdclass = rdata->rdclass;
tsig->common.rdtype = rdata->type;
ISC_LINK_INIT(&tsig->common, link);
dns_rdata_toregion(rdata, &sr);
/*
* Algorithm Name.
*/
dns_name_init(&alg, NULL);
dns_name_fromregion(&alg, &sr);
dns_name_init(&tsig->algorithm, NULL);
RETERR(name_duporclone(&alg, mctx, &tsig->algorithm));
isc_region_consume(&sr, name_length(&tsig->algorithm));
/*
* Time Signed.
*/
INSIST(sr.length >= 6);
tsig->timesigned = ((isc_uint64_t)sr.base[0] << 40) |
((isc_uint64_t)sr.base[1] << 32) |
(sr.base[2] << 24) | (sr.base[3] << 16) |
(sr.base[4] << 8) | sr.base[5];
isc_region_consume(&sr, 6);
/*
* Fudge.
*/
tsig->fudge = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Signature Size.
*/
tsig->siglen = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Signature.
*/
INSIST(sr.length >= tsig->siglen);
if (tsig->siglen != 0) {
tsig->signature = mem_maybedup(mctx, sr.base, tsig->siglen);
if (tsig->signature == NULL)
goto cleanup;
isc_region_consume(&sr, tsig->siglen);
} else
tsig->signature = NULL;
/*
* Original ID.
*/
tsig->originalid = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Error.
*/
tsig->error = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Other Size.
*/
tsig->otherlen = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Other.
*/
INSIST(sr.length == tsig->otherlen);
if (tsig->otherlen != 0) {
tsig->other = mem_maybedup(mctx, sr.base, tsig->otherlen);
if (tsig->other == NULL)
goto cleanup;
} else
tsig->other = NULL;
tsig->mctx = mctx;
return (ISC_R_SUCCESS);
cleanup:
if (mctx != NULL)
dns_name_free(&tsig->algorithm, tsig->mctx);
if (mctx != NULL && tsig->signature != NULL)
isc_mem_free(mctx, tsig->signature);
return (ISC_R_NOMEMORY);
}
static inline void
freestruct_any_tsig(ARGS_FREESTRUCT) {
dns_rdata_any_tsig_t *tsig = (dns_rdata_any_tsig_t *) source;
REQUIRE(source != NULL);
REQUIRE(tsig->common.rdclass == 255);
REQUIRE(tsig->common.rdtype == 250);
if (tsig->mctx == NULL)
return;
dns_name_free(&tsig->algorithm, tsig->mctx);
if (tsig->signature != NULL)
isc_mem_free(tsig->mctx, tsig->signature);
if (tsig->other != NULL)
isc_mem_free(tsig->mctx, tsig->other);
tsig->mctx = NULL;
}
static inline isc_result_t
additionaldata_any_tsig(ARGS_ADDLDATA) {
REQUIRE(rdata->type == 250);
REQUIRE(rdata->rdclass == 255);
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_any_tsig(ARGS_DIGEST) {
REQUIRE(rdata->type == 250);
REQUIRE(rdata->rdclass == 255);
UNUSED(rdata);
UNUSED(digest);
UNUSED(arg);
return (ISC_R_NOTIMPLEMENTED);
}
#endif /* RDATA_ANY_255_TSIG_250_C */