Exemple #1
0
isc_result_t
dst_key_buildinternal(dns_name_t *name, unsigned int alg,
		      unsigned int bits, unsigned int flags,
		      unsigned int protocol, dns_rdataclass_t rdclass,
		      void *data, isc_mem_t *mctx, dst_key_t **keyp)
{
	dst_key_t *key;
	isc_result_t result;

	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(dns_name_isabsolute(name));
	REQUIRE(mctx != NULL);
	REQUIRE(keyp != NULL && *keyp == NULL);
	REQUIRE(data != NULL);

	CHECKALG(alg);

	key = get_key_struct(name, alg, flags, protocol, bits, rdclass,
			     0, mctx);
	if (key == NULL)
		return (ISC_R_NOMEMORY);

	key->keydata.generic = data;

	result = computeid(key);
	if (result != ISC_R_SUCCESS) {
		dst_key_free(&key);
		return (result);
	}

	*keyp = key;
	return (ISC_R_SUCCESS);
}
Exemple #2
0
isc_result_t
dst_key_todns(const dst_key_t *key, isc_buffer_t *target) {
	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(VALID_KEY(key));
	REQUIRE(target != NULL);

	CHECKALG(key->key_alg);

	if (key->func->todns == NULL)
		return (DST_R_UNSUPPORTEDALG);

	if (isc_buffer_availablelength(target) < 4)
		return (ISC_R_NOSPACE);
	isc_buffer_putuint16(target, (isc_uint16_t)(key->key_flags & 0xffff));
	isc_buffer_putuint8(target, (isc_uint8_t)key->key_proto);
	isc_buffer_putuint8(target, (isc_uint8_t)key->key_alg);

	if (key->key_flags & DNS_KEYFLAG_EXTENDED) {
		if (isc_buffer_availablelength(target) < 2)
			return (ISC_R_NOSPACE);
		isc_buffer_putuint16(target,
				     (isc_uint16_t)((key->key_flags >> 16)
						    & 0xffff));
	}

	if (key->keydata.generic == NULL) /*%< NULL KEY */
		return (ISC_R_SUCCESS);

	return (key->func->todns(key, target));
}
Exemple #3
0
isc_result_t
dst_key_getfilename(dns_name_t *name, dns_keytag_t id,
		    unsigned int alg, int type, const char *directory,
		    isc_mem_t *mctx, isc_buffer_t *buf)
{
	isc_result_t result;

	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(dns_name_isabsolute(name));
	REQUIRE((type & (DST_TYPE_PRIVATE | DST_TYPE_PUBLIC)) != 0);
	REQUIRE(mctx != NULL);
	REQUIRE(buf != NULL);

	CHECKALG(alg);

	result = buildfilename(name, id, alg, type, directory, buf);
	if (result == ISC_R_SUCCESS) {
		if (isc_buffer_availablelength(buf) > 0)
			isc_buffer_putuint8(buf, 0);
		else
			result = ISC_R_NOSPACE;
	}

	return (result);
}
Exemple #4
0
isc_result_t
dst_key_tofile(const dst_key_t *key, int type, const char *directory) {
	isc_result_t ret = ISC_R_SUCCESS;

	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(VALID_KEY(key));
	REQUIRE((type & (DST_TYPE_PRIVATE | DST_TYPE_PUBLIC)) != 0);

	CHECKALG(key->key_alg);

	if (key->func->tofile == NULL)
		return (DST_R_UNSUPPORTEDALG);

	if (type & DST_TYPE_PUBLIC) {
		ret = write_public_key(key, type, directory);
		if (ret != ISC_R_SUCCESS)
			return (ret);
	}

	if ((type & DST_TYPE_PRIVATE) &&
	    (key->key_flags & DNS_KEYFLAG_TYPEMASK) != DNS_KEYTYPE_NOKEY)
		return (key->func->tofile(key, directory));
	else
		return (ISC_R_SUCCESS);
}
Exemple #5
0
isc_result_t
dst_key_tobuffer(const dst_key_t *key, isc_buffer_t *target) {
	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(VALID_KEY(key));
	REQUIRE(target != NULL);

	CHECKALG(key->key_alg);

	if (key->func->todns == NULL)
		return (DST_R_UNSUPPORTEDALG);

	return (key->func->todns(key, target));
}
Exemple #6
0
isc_result_t
dst_context_verify(dst_context_t *dctx, isc_region_t *sig) {
	REQUIRE(VALID_CTX(dctx));
	REQUIRE(sig != NULL);

	CHECKALG(dctx->key->key_alg);
	if (dctx->key->keydata.generic == NULL)
		return (DST_R_NULLKEY);
	if (dctx->key->func->verify == NULL)
		return (DST_R_NOTPUBLICKEY);

	return (dctx->key->func->verify(dctx, sig));
}
Exemple #7
0
isc_result_t
dst_key_generate2(dns_name_t *name, unsigned int alg,
		  unsigned int bits, unsigned int param,
		  unsigned int flags, unsigned int protocol,
		  dns_rdataclass_t rdclass,
		  isc_mem_t *mctx, dst_key_t **keyp,
		  void (*callback)(int))
{
	dst_key_t *key;
	isc_result_t ret;

	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(dns_name_isabsolute(name));
	REQUIRE(mctx != NULL);
	REQUIRE(keyp != NULL && *keyp == NULL);

	CHECKALG(alg);

	key = get_key_struct(name, alg, flags, protocol, bits,
			     rdclass, 0, mctx);
	if (key == NULL)
		return (ISC_R_NOMEMORY);

	if (bits == 0) { /*%< NULL KEY */
		key->key_flags |= DNS_KEYTYPE_NOKEY;
		*keyp = key;
		return (ISC_R_SUCCESS);
	}

	if (key->func->generate == NULL) {
		dst_key_free(&key);
		return (DST_R_UNSUPPORTEDALG);
	}

	ret = key->func->generate(key, param, callback);
	if (ret != ISC_R_SUCCESS) {
		dst_key_free(&key);
		return (ret);
	}

	ret = computeid(key);
	if (ret != ISC_R_SUCCESS) {
		dst_key_free(&key);
		return (ret);
	}

	*keyp = key;
	return (ISC_R_SUCCESS);
}
Exemple #8
0
isc_result_t
dst_key_computesecret(const dst_key_t *pub, const dst_key_t *priv,
		      isc_buffer_t *secret)
{
	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(VALID_KEY(pub) && VALID_KEY(priv));
	REQUIRE(secret != NULL);

	CHECKALG(pub->key_alg);
	CHECKALG(priv->key_alg);

	if (pub->keydata.generic == NULL || priv->keydata.generic == NULL)
		return (DST_R_NULLKEY);

	if (pub->key_alg != priv->key_alg ||
	    pub->func->computesecret == NULL ||
	    priv->func->computesecret == NULL)
		return (DST_R_KEYCANNOTCOMPUTESECRET);

	if (dst_key_isprivate(priv) == ISC_FALSE)
		return (DST_R_NOTPRIVATEKEY);

	return (pub->func->computesecret(pub, priv, secret));
}
Exemple #9
0
isc_result_t
dst_key_fromfile(dns_name_t *name, dns_keytag_t id,
		 unsigned int alg, int type, const char *directory,
		 isc_mem_t *mctx, dst_key_t **keyp)
{
	isc_result_t result;
	char filename[ISC_DIR_NAMEMAX];
	isc_buffer_t buf;
	dst_key_t *key;

	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(dns_name_isabsolute(name));
	REQUIRE((type & (DST_TYPE_PRIVATE | DST_TYPE_PUBLIC)) != 0);
	REQUIRE(mctx != NULL);
	REQUIRE(keyp != NULL && *keyp == NULL);

	CHECKALG(alg);

	key = NULL;

	isc_buffer_init(&buf, filename, ISC_DIR_NAMEMAX);
	result = dst_key_getfilename(name, id, alg, type, NULL, mctx, &buf);
	if (result != ISC_R_SUCCESS)
		goto out;

	result = dst_key_fromnamedfile(filename, directory, type, mctx, &key);
	if (result != ISC_R_SUCCESS)
		goto out;

	result = computeid(key);
	if (result != ISC_R_SUCCESS)
		goto out;

	if (!dns_name_equal(name, key->key_name) || id != key->key_id ||
	    alg != key->key_alg) {
		result = DST_R_INVALIDPRIVATEKEY;
		goto out;
	}

	*keyp = key;
	result = ISC_R_SUCCESS;

 out:
	if ((key != NULL) && (result != ISC_R_SUCCESS))
		dst_key_free(&key);

	return (result);
}
Exemple #10
0
isc_result_t
dst_key_fromfile(dns_name_t *name, dns_keytag_t id,
		 unsigned int alg, int type, const char *directory,
		 isc_mem_t *mctx, dst_key_t **keyp)
{
	char filename[ISC_DIR_NAMEMAX];
	isc_buffer_t b;
	dst_key_t *key;
	isc_result_t result;

	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(dns_name_isabsolute(name));
	REQUIRE((type & (DST_TYPE_PRIVATE | DST_TYPE_PUBLIC)) != 0);
	REQUIRE(mctx != NULL);
	REQUIRE(keyp != NULL && *keyp == NULL);

	CHECKALG(alg);

	isc_buffer_init(&b, filename, sizeof(filename));
	result = buildfilename(name, id, alg, type, directory, &b);
	if (result != ISC_R_SUCCESS)
		return (result);

	key = NULL;
	result = dst_key_fromnamedfile(filename, type, mctx, &key);
	if (result != ISC_R_SUCCESS)
		return (result);

	result = computeid(key);
	if (result != ISC_R_SUCCESS) {
		dst_key_free(&key);
		return (result);
	}

	if (!dns_name_equal(name, key->key_name) ||
	    id != key->key_id ||
	    alg != key->key_alg)
	{
		dst_key_free(&key);
		return (DST_R_INVALIDPRIVATEKEY);
	}
	key->key_id = id;

	*keyp = key;
	return (ISC_R_SUCCESS);
}
Exemple #11
0
isc_result_t
dst_context_sign(dst_context_t *dctx, isc_buffer_t *sig) {
	dst_key_t *key;

	REQUIRE(VALID_CTX(dctx));
	REQUIRE(sig != NULL);

	key = dctx->key;
	CHECKALG(key->key_alg);
	if (key->opaque == NULL)
		return (DST_R_NULLKEY);
	if (key->func->sign == NULL)
		return (DST_R_NOTPRIVATEKEY);
	if (key->func->isprivate == NULL ||
	    key->func->isprivate(key) == ISC_FALSE)
		return (DST_R_NOTPRIVATEKEY);

	return (key->func->sign(dctx, sig));
}
Exemple #12
0
isc_result_t
dst_key_fromlabel(dns_name_t *name, int alg, unsigned int flags,
		  unsigned int protocol, dns_rdataclass_t rdclass,
		  const char *engine, const char *label, const char *pin,
		  isc_mem_t *mctx, dst_key_t **keyp)
{
	dst_key_t *key;
	isc_result_t result;

	REQUIRE(dst_initialized == ISC_TRUE);
	REQUIRE(dns_name_isabsolute(name));
	REQUIRE(mctx != NULL);
	REQUIRE(keyp != NULL && *keyp == NULL);
	REQUIRE(label != NULL);

	CHECKALG(alg);

	key = get_key_struct(name, alg, flags, protocol, 0, rdclass, 0, mctx);
	if (key == NULL)
		return (ISC_R_NOMEMORY);

	if (key->func->fromlabel == NULL) {
		dst_key_free(&key);
		return (DST_R_UNSUPPORTEDALG);
	}

	result = key->func->fromlabel(key, engine, label, pin);
	if (result != ISC_R_SUCCESS) {
		dst_key_free(&key);
		return (result);
	}

	result = computeid(key);
	if (result != ISC_R_SUCCESS) {
		dst_key_free(&key);
		return (result);
	}

	*keyp = key;
	return (ISC_R_SUCCESS);
}