C++ (Cpp) val_neg_getmsg Examples

Example #1

File: val_utils.c Project: RS-liuyang/rsdns

struct dns_msg* 
val_find_DS(struct module_env* env, uint8_t* nm, size_t nmlen, uint16_t c, 
	struct regional* region)
{
	struct dns_msg* msg;
	struct query_info qinfo;
	struct ub_packed_rrset_key *rrset = rrset_cache_lookup(
		env->rrset_cache, nm, nmlen, LDNS_RR_TYPE_DS, c, 0, 
		*env->now, 0);
	if(rrset) {
		/* DS rrset exists. Return it to the validator immediately*/
		struct ub_packed_rrset_key* copy = packed_rrset_copy_region(
			rrset, region, *env->now);
		lock_rw_unlock(&rrset->entry.lock);
		if(!copy)
			return NULL;
		msg = dns_msg_create(nm, nmlen, LDNS_RR_TYPE_DS, c, region, 1);
		if(!msg)
			return NULL;
		msg->rep->rrsets[0] = copy;
		msg->rep->rrset_count++;
		msg->rep->an_numrrsets++;
		return msg;
	}
	/* lookup in rrset and negative cache for NSEC/NSEC3 */
	qinfo.qname = nm;
	qinfo.qname_len = nmlen;
	qinfo.qtype = LDNS_RR_TYPE_DS;
	qinfo.qclass = c;
	/* do not add SOA to reply message, it is going to be used internal */
	msg = val_neg_getmsg(env->neg_cache, &qinfo, region, env->rrset_cache,
		env->scratch_buffer, *env->now, 0);
	return msg;
}

Example #2

File: cachedb.c Project: FreeBSDFoundation/freebsd

/**
 * See if unbound's internal cache can answer the query
 */
static int
cachedb_intcache_lookup(struct module_qstate* qstate)
{
	struct dns_msg* msg;
	msg = dns_cache_lookup(qstate->env, qstate->qinfo.qname,
		qstate->qinfo.qname_len, qstate->qinfo.qtype,
		qstate->qinfo.qclass, qstate->query_flags,
		qstate->region, qstate->env->scratch,
		1 /* no partial messages with only a CNAME */
		);
	if(!msg && qstate->env->neg_cache &&
		iter_qname_indicates_dnssec(qstate->env, &qstate->qinfo)) {
		/* lookup in negative cache; may result in 
		 * NOERROR/NODATA or NXDOMAIN answers that need validation */
		msg = val_neg_getmsg(qstate->env->neg_cache, &qstate->qinfo,
			qstate->region, qstate->env->rrset_cache,
			qstate->env->scratch_buffer,
			*qstate->env->now, 1/*add SOA*/, NULL,
			qstate->env->cfg);
	}
	if(!msg)
		return 0;
	/* this is the returned msg */
	qstate->return_rcode = LDNS_RCODE_NOERROR;
	qstate->return_msg = msg;
	return 1;
}