X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fmdnsd.git;a=blobdiff_plain;f=cache.c;h=7d2aa8fdba2d467320c74cc4db53990dfc9db01c;hp=08f6308dc6fa6e6d5ba30b409cd08b06df152370;hb=HEAD;hpb=80dd246024800b3f33bacc6cf01184da6f57dfa4

diff --git a/cache.c b/cache.c
index 08f6308..7d2aa8f 100644
--- a/cache.c
+++ b/cache.c
@@ -76,11 +76,12 @@ cache_gc_timer(struct uloop_timeout *timeout)
 	struct cache_service *s, *t;
 
 	avl_for_each_element_safe(&records, r, avl, p) {
-		if (!cache_is_expired(r->time, r->ttl, 100))
+		if (!cache_is_expired(r->time, r->ttl, r->refresh))
 			continue;
-		/* Records other and A(AAA) are handled as services */
+		/* Records other than A(AAA) are handled as services */
 		if (r->type != TYPE_A && r->type != TYPE_AAAA) {
-			cache_record_free(r);
+			if (cache_is_expired(r->time, r->ttl, 100))
+				cache_record_free(r);
 			continue;
 		}
 		if (r->refresh >= 100) {
@@ -88,7 +89,7 @@ cache_gc_timer(struct uloop_timeout *timeout)
 			continue;
 		}
 		r->refresh += 50;
-		dns_send_question(r->iface, r->record, r->type, 0);
+		dns_send_question(r->iface, (struct sockaddr *)&r->from, r->record, r->type, 0);
 	}
 
 	avl_for_each_element_safe(&services, s, avl, t) {
@@ -101,9 +102,7 @@ cache_gc_timer(struct uloop_timeout *timeout)
 			continue;
 		}
 		s->refresh += 50;
-		if (cache_service_is_host(s))
-			continue;
-		dns_send_question(s->iface, s->entry, TYPE_PTR, 0);
+		dns_send_question(s->iface, NULL, s->entry, TYPE_PTR, 0);
 	}
 
 	uloop_timeout_set(timeout, 10000);
@@ -142,7 +141,7 @@ cache_update(void)
 
 	vlist_for_each_element(&interfaces, iface, node)
 		avl_for_each_element(&services, s, avl)
-			dns_send_question(iface, s->entry, TYPE_PTR, 0);
+			dns_send_question(iface, NULL, s->entry, TYPE_PTR, 0);
 }
 
 static struct cache_service*
@@ -182,7 +181,7 @@ cache_service(struct interface *iface, char *entry, int hlen, int ttl)
 	avl_insert(&services, &s->avl);
 
 	if (!hlen)
-		dns_send_question(iface, entry, TYPE_PTR, iface->multicast);
+		dns_send_question(iface, NULL, entry, TYPE_PTR, iface->multicast);
 
 	return s;
 }
@@ -243,8 +242,9 @@ cache_host_is_known(char *record)
 	return 0;
 }
 
-void
-cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struct dns_answer *a, uint8_t *rdata, int flush)
+void cache_answer(struct interface *iface, struct sockaddr *from, uint8_t *base,
+		  int blen, char *name, struct dns_answer *a, uint8_t *rdata,
+		  int flush)
 {
 	struct dns_srv_data *dsd = (struct dns_srv_data *) rdata;
 	struct cache_record *r;
@@ -276,7 +276,8 @@ cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struc
 		    nlen + 1 < rdlength && !strcmp(rdata_buffer + rdlength - nlen, name))
 			host_len = rdlength - nlen - 1;
 
-		cache_service(iface, rdata_buffer, host_len, a->ttl);
+		if (name[0] == '_')
+			cache_service(iface, rdata_buffer, host_len, a->ttl);
 
 		dlen = strlen(rdata_buffer) + 1;
 		rdata = (uint8_t*)rdata_buffer;
@@ -317,14 +318,12 @@ cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struc
 		break;
 
 	case TYPE_A:
-		cache_service(iface, name, strlen(name), a->ttl);
 		if (a->rdlength != 4)
 			return;
 		dlen = 4;
 		break;
 
 	case TYPE_AAAA:
-		cache_service(iface, name, strlen(name), a->ttl);
 		if (a->rdlength != 16)
 			return;
 		dlen = 16;
@@ -339,9 +338,11 @@ cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struc
 		if (!a->ttl) {
 			DBG(1, "D -> %s %s ttl:%d\n", dns_type_string(r->type), r->record, r->ttl);
 			r->time = now + 1 - r->ttl;
+			r->refresh = 100;
 		} else {
 			r->ttl = a->ttl;
 			r->time = now;
+			r->refresh = 50;
 			DBG(1, "A -> %s %s ttl:%d\n", dns_type_string(r->type), r->record, r->ttl);
 		}
 		return;
@@ -362,6 +363,11 @@ cache_answer(struct interface *iface, uint8_t *base, int blen, char *name, struc
 	r->rdlength = dlen;
 	r->time = now;
 	r->iface = iface;
+	if (iface->v6)
+		memcpy(&r->from, from, sizeof(struct sockaddr_in6));
+	else
+		memcpy(&r->from, from, sizeof(struct sockaddr_in));
+	r->refresh = 50;
 
 	if (tlen)
 		r->txt = memcpy(txt_ptr, rdata_buffer, tlen);