/**
* Publish the NSEC3 parameters as indicated by the signer configuration.
*
*/
ods_status
zone_publish_nsec3param(zone_type* zone)
{
rrset_type* rrset = NULL;
rr_type* n3prr = NULL;
ldns_rr* rr = NULL;
ods_status status = ODS_STATUS_OK;
if (!zone || !zone->name || !zone->db || !zone->signconf) {
return ODS_STATUS_ASSERT_ERR;
}
if (!zone->signconf->nsec3params) {
/* NSEC */
ods_log_assert(zone->signconf->nsec_type == LDNS_RR_TYPE_NSEC);
return ODS_STATUS_OK;
}
if (!zone->signconf->nsec3params->rr) {
rr = ldns_rr_new_frm_type(LDNS_RR_TYPE_NSEC3PARAMS);
if (!rr) {
ods_log_error("[%s] unable to publish nsec3params for zone %s: "
"error creating rr (%s)", zone_str, zone->name,
ods_status2str(status));
return ODS_STATUS_MALLOC_ERR;
}
ldns_rr_set_class(rr, zone->klass);
ldns_rr_set_ttl(rr, 0);
ldns_rr_set_owner(rr, ldns_rdf_clone(zone->apex));
ldns_nsec3_add_param_rdfs(rr,
zone->signconf->nsec3params->algorithm, 0,
zone->signconf->nsec3params->iterations,
zone->signconf->nsec3params->salt_len,
zone->signconf->nsec3params->salt_data);
/**
* Always set bit 7 of the flags to zero,
* according to rfc5155 section 11
*/
ldns_set_bit(ldns_rdf_data(ldns_rr_rdf(rr, 1)), 7, 0);
zone->signconf->nsec3params->rr = rr;
}
ods_log_assert(zone->signconf->nsec3params->rr);
status = zone_add_rr(zone, zone->signconf->nsec3params->rr, 0);
if (status == ODS_STATUS_UNCHANGED) {
/* rr already exists, adjust pointer */
rrset = zone_lookup_rrset(zone, zone->apex, LDNS_RR_TYPE_NSEC3PARAMS);
ods_log_assert(rrset);
n3prr = rrset_lookup_rr(rrset, zone->signconf->nsec3params->rr);
ods_log_assert(n3prr);
if (n3prr->rr != zone->signconf->nsec3params->rr) {
ldns_rr_free(zone->signconf->nsec3params->rr);
}
zone->signconf->nsec3params->rr = n3prr->rr;
status = ODS_STATUS_OK;
} else if (status != ODS_STATUS_OK) {
ods_log_error("[%s] unable to publish nsec3params for zone %s: "
"error adding nsec3params (%s)", zone_str,
zone->name, ods_status2str(status));
}
return status;
}
ldns_status
ldns_dnssec_zone_sign_nsec3(ldns_dnssec_zone *zone,
ldns_rr_list *new_rrs,
ldns_key_list *key_list,
int (*func)(ldns_rr *, void *),
void *arg,
uint8_t algorithm,
uint8_t flags,
uint16_t iterations,
uint8_t salt_length,
uint8_t *salt)
{
ldns_rr *nsec3, *nsec3params;
ldns_status result = LDNS_STATUS_OK;
/* zone is already sorted */
ldns_dnssec_zone_mark_glue(zone);
/* TODO if there are already nsec3s presents and their
* parameters are the same as these, we don't have to recreate
*/
if (zone->names) {
/* add empty nonterminals */
ldns_dnssec_zone_add_empty_nonterminals(zone);
nsec3 = ((ldns_dnssec_name *)zone->names->root->data)->nsec;
if (nsec3 && ldns_rr_get_type(nsec3) == LDNS_RR_TYPE_NSEC3) {
/* no need to recreate */
} else {
if (!ldns_dnssec_zone_find_rrset(zone,
zone->soa->name,
LDNS_RR_TYPE_NSEC3PARAMS)) {
/* create and add the nsec3params rr */
nsec3params =
ldns_rr_new_frm_type(LDNS_RR_TYPE_NSEC3PARAMS);
ldns_rr_set_owner(nsec3params,
ldns_rdf_clone(zone->soa->name));
ldns_nsec3_add_param_rdfs(nsec3params,
algorithm,
flags,
iterations,
salt_length,
salt);
/* always set bit 7 of the flags to zero, according to
* rfc5155 section 11 */
ldns_set_bit(ldns_rdf_data(ldns_rr_rdf(nsec3params, 1)), 7, 0);
ldns_dnssec_zone_add_rr(zone, nsec3params);
ldns_rr_list_push_rr(new_rrs, nsec3params);
}
result = ldns_dnssec_zone_create_nsec3s(zone,
new_rrs,
algorithm,
flags,
iterations,
salt_length,
salt);
if (result != LDNS_STATUS_OK) {
return result;
}
}
result = ldns_dnssec_zone_create_rrsigs(zone,
new_rrs,
key_list,
func,
arg);
}
return result;
}
