Handle query retry on REFUSED or SERVFAIL for DNSSEC-generated queries.
diff --git a/src/forward.c b/src/forward.c
index 66b8564..a12e42f 100644
--- a/src/forward.c
+++ b/src/forward.c
@@ -298,9 +298,9 @@
fd = forward->rfd4->fd;
}
- while (retry_send( sendto(fd, (char *)header, plen, 0,
- &forward->sentto->addr.sa,
- sa_len(&forward->sentto->addr))));
+ while (retry_send(sendto(fd, (char *)header, plen, 0,
+ &forward->sentto->addr.sa,
+ sa_len(&forward->sentto->addr))));
return 1;
}
@@ -804,8 +804,7 @@
dump_packet((forward->flags & (FREC_DNSKEY_QUERY | FREC_DS_QUERY)) ? DUMP_SEC_REPLY : DUMP_UP_REPLY,
(void *)header, n, &serveraddr, NULL);
#endif
-
-
+
/* log_query gets called indirectly all over the place, so
pass these in global variables - sorry. */
daemon->log_display_id = forward->log_id;
@@ -826,6 +825,40 @@
size_t plen;
int is_sign;
+ /* For DNSSEC originated queries, just retry the query to the same server. */
+ if (forward->flags & (FREC_DNSKEY_QUERY | FREC_DS_QUERY))
+ {
+ blockdata_retrieve(forward->stash, forward->stash_len, (void *)header);
+ plen = forward->stash_len;
+
+ forward->forwardall = 2; /* only retry once */
+
+ if (forward->sentto->addr.sa.sa_family == AF_INET)
+ log_query(F_NOEXTRA | F_DNSSEC | F_IPV4, "retry", (struct all_addr *)&forward->sentto->addr.in.sin_addr, "dnssec");
+#ifdef HAVE_IPV6
+ else
+ log_query(F_NOEXTRA | F_DNSSEC | F_IPV6, "retry", (struct all_addr *)&forward->sentto->addr.in6.sin6_addr, "dnssec");
+#endif
+
+ if (forward->sentto->sfd)
+ fd = forward->sentto->sfd->fd;
+ else
+ {
+#ifdef HAVE_IPV6
+ if (forward->sentto->addr.sa.sa_family == AF_INET6)
+ fd = forward->rfd6->fd;
+ else
+#endif
+ fd = forward->rfd4->fd;
+ }
+
+ while (retry_send(sendto(fd, (char *)header, plen, 0,
+ &forward->sentto->addr.sa,
+ sa_len(&forward->sentto->addr))));
+
+ return;
+ }
+
/* In strict order mode, there must be a server later in the chain
left to send to, otherwise without the forwardall mechanism,
code further on will cycle around the list forwever if they
@@ -1017,7 +1050,8 @@
#ifdef HAVE_IPV6
new->rfd6 = NULL;
#endif
- new->flags &= ~(FREC_DNSKEY_QUERY | FREC_DS_QUERY);
+ new->flags &= ~(FREC_DNSKEY_QUERY | FREC_DS_QUERY | FREC_HAS_EXTRADATA);
+ new->forwardall = 0;
new->dependent = forward; /* to find query awaiting new one. */
forward->blocking_query = new; /* for garbage cleaning */