Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 60 insertions, 0 deletions

diff --git a/src/resolve/resolved-dns-cache.h b/src/resolve/resolved-dns-cache.h
new file mode 100644
index 0000000..d078ae9
--- /dev/null
+++ b/src/resolve/resolved-dns-cache.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include "hashmap.h"
+#include "list.h"
+#include "prioq.h"
+#include "resolve-util.h"
+#include "resolved-dns-dnssec.h"
+#include "time-util.h"
+
+typedef struct DnsCache {
+        Hashmap *by_key;
+        Prioq *by_expiry;
+        unsigned n_hit;
+        unsigned n_miss;
+} DnsCache;
+
+#include "resolved-dns-answer.h"
+#include "resolved-dns-packet.h"
+#include "resolved-dns-question.h"
+#include "resolved-dns-rr.h"
+
+void dns_cache_flush(DnsCache *c);
+void dns_cache_prune(DnsCache *c);
+
+int dns_cache_put(
+                DnsCache *c,
+                DnsCacheMode cache_mode,
+                DnsProtocol protocol,
+                DnsResourceKey *key,
+                int rcode,
+                DnsAnswer *answer,
+                DnsPacket *full_packet,
+                uint64_t query_flags,
+                DnssecResult dnssec_result,
+                uint32_t nsec_ttl,
+                int owner_family,
+                const union in_addr_union *owner_address,
+                usec_t stale_retention_usec);
+
+int dns_cache_lookup(
+                DnsCache *c,
+                DnsResourceKey *key,
+                uint64_t query_flags,
+                int *ret_rcode,
+                DnsAnswer **ret_answer,
+                DnsPacket **ret_full_packet,
+                uint64_t *ret_query_flags,
+                DnssecResult *ret_dnssec_result);
+
+int dns_cache_check_conflicts(DnsCache *cache, DnsResourceRecord *rr, int owner_family, const union in_addr_union *owner_address);
+
+void dns_cache_dump(DnsCache *cache, FILE *f);
+int dns_cache_dump_to_json(DnsCache *cache, JsonVariant **ret);
+
+bool dns_cache_is_empty(DnsCache *cache);
+
+unsigned dns_cache_size(DnsCache *cache);
+
+int dns_cache_export_shared_to_packet(DnsCache *cache, DnsPacket *p, usec_t ts, unsigned max_rr);