X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fresolve%2Fresolved-dns-cache.c;h=f7091f07bf4b5c18e1ba949ca6bd4a4fed548f32;hb=9a015429b3bbfe1c2802570c1621e73d6cb57ac3;hp=c9711674529f888c0b53f7ce1b1bfa83cf4054d9;hpb=d2f47562d5d834339ef3030e345a76a8c6f09c74;p=elogind.git

diff --git a/src/resolve/resolved-dns-cache.c b/src/resolve/resolved-dns-cache.c
index c97116745..f7091f07b 100644
--- a/src/resolve/resolved-dns-cache.c
+++ b/src/resolve/resolved-dns-cache.c
@@ -153,7 +153,7 @@ void dns_cache_prune(DnsCache *c) {
                         break;
 
                 if (t <= 0)
-                        t = now(CLOCK_MONOTONIC);
+                        t = now(CLOCK_BOOTTIME);
 
                 if (i->until > t)
                         break;
@@ -270,6 +270,11 @@ static int dns_cache_put_positive(DnsCache *c, DnsResourceRecord *rr, usec_t tim
                 return 0;
         }
 
+        if (rr->key->class == DNS_CLASS_ANY)
+                return 0;
+        if (rr->key->type == DNS_TYPE_ANY)
+                return 0;
+
         /* Entry exists already? Update TTL and timestamp */
         existing = dns_cache_get(c, rr);
         if (existing) {
@@ -311,6 +316,11 @@ static int dns_cache_put_negative(DnsCache *c, DnsResourceKey *key, int rcode, u
 
         dns_cache_remove(c, key);
 
+        if (key->class == DNS_CLASS_ANY)
+                return 0;
+        if (key->type == DNS_TYPE_ANY)
+                return 0;
+
         if (!IN_SET(rcode, DNS_RCODE_SUCCESS, DNS_RCODE_NXDOMAIN))
                 return 0;
 
@@ -342,12 +352,16 @@ int dns_cache_put(DnsCache *c, DnsQuestion *q, int rcode, DnsAnswer *answer, uns
         int r;
 
         assert(c);
-        assert(answer);
+        assert(q);
 
         /* First, delete all matching old RRs, so that we only keep
          * complete by_key in place. */
         for (i = 0; i < q->n_keys; i++)
                 dns_cache_remove(c, q->keys[i]);
+
+        if (!answer)
+                return 0;
+
         for (i = 0; i < answer->n_rrs; i++)
                 dns_cache_remove(c, answer->rrs[i]->key);
 
@@ -362,7 +376,7 @@ int dns_cache_put(DnsCache *c, DnsQuestion *q, int rcode, DnsAnswer *answer, uns
         dns_cache_make_space(c, answer->n_rrs + q->n_keys);
 
         if (timestamp <= 0)
-                timestamp = now(CLOCK_MONOTONIC);
+                timestamp = now(CLOCK_BOOTTIME);
 
         /* Second, add in positive entries for all contained RRs */
         for (i = 0; i < MIN(max_rrs, answer->n_rrs); i++) {
@@ -426,6 +440,14 @@ int dns_cache_lookup(DnsCache *c, DnsQuestion *q, int *rcode, DnsAnswer **ret) {
         for (i = 0; i < q->n_keys; i++) {
                 DnsCacheItem *j;
 
+                if (q->keys[i]->type == DNS_TYPE_ANY ||
+                    q->keys[i]->class == DNS_CLASS_ANY) {
+                        /* If we have ANY lookups we simply refresh */
+                        *ret = NULL;
+                        *rcode = 0;
+                        return 0;
+                }
+
                 j = hashmap_get(c->by_key, q->keys[i]);
                 if (!j) {
                         /* If one question cannot be answered we need to refresh */