Adding upstream version 255.4.upstream/255.4

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

1 files changed, 69 insertions, 0 deletions

diff --git a/src/resolve/resolved-dns-zone.h b/src/resolve/resolved-dns-zone.h
new file mode 100644
index 0000000..1f5a6e0
--- /dev/null
+++ b/src/resolve/resolved-dns-zone.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include "hashmap.h"
+
+typedef struct DnsZone {
+        Hashmap *by_key;
+        Hashmap *by_name;
+} DnsZone;
+
+typedef struct DnsZoneItem DnsZoneItem;
+typedef enum DnsZoneItemState DnsZoneItemState;
+
+#include "resolved-dns-answer.h"
+#include "resolved-dns-question.h"
+#include "resolved-dns-rr.h"
+#include "resolved-dns-transaction.h"
+
+/* RFC 4795 Section 2.8. suggests a TTL of 30s by default */
+#define LLMNR_DEFAULT_TTL (30)
+
+/* RFC 6762 Section 10. suggests a TTL of 120s by default */
+#define MDNS_DEFAULT_TTL (120)
+
+enum DnsZoneItemState {
+        DNS_ZONE_ITEM_PROBING,
+        DNS_ZONE_ITEM_ESTABLISHED,
+        DNS_ZONE_ITEM_VERIFYING,
+        DNS_ZONE_ITEM_WITHDRAWN,
+};
+
+struct DnsZoneItem {
+        DnsScope *scope;
+        DnsResourceRecord *rr;
+
+        DnsZoneItemState state;
+
+        unsigned block_ready;
+
+        bool probing_enabled;
+
+        LIST_FIELDS(DnsZoneItem, by_key);
+        LIST_FIELDS(DnsZoneItem, by_name);
+
+        DnsTransaction *probe_transaction;
+};
+
+void dns_zone_flush(DnsZone *z);
+
+int dns_zone_put(DnsZone *z, DnsScope *s, DnsResourceRecord *rr, bool probe);
+DnsZoneItem* dns_zone_get(DnsZone *z, DnsResourceRecord *rr);
+void dns_zone_remove_rr(DnsZone *z, DnsResourceRecord *rr);
+int dns_zone_remove_rrs_by_key(DnsZone *z, DnsResourceKey *key);
+
+int dns_zone_lookup(DnsZone *z, DnsResourceKey *key, int ifindex, DnsAnswer **answer, DnsAnswer **soa, bool *tentative);
+
+void dns_zone_item_conflict(DnsZoneItem *i);
+void dns_zone_item_notify(DnsZoneItem *i);
+
+int dns_zone_check_conflicts(DnsZone *zone, DnsResourceRecord *rr);
+int dns_zone_verify_conflicts(DnsZone *zone, DnsResourceKey *key);
+
+void dns_zone_verify_all(DnsZone *zone);
+
+void dns_zone_item_probe_stop(DnsZoneItem *i);
+
+void dns_zone_dump(DnsZone *zone, FILE *f);
+bool dns_zone_is_empty(DnsZone *zone);
+bool dns_zone_contains_name(DnsZone *z, const char *name);