resolved: cache stringified transaction key once per transaction

[thirdparty/systemd.git] / src / resolve / resolved-dns-scope.h

diff --git a/src/resolve/resolved-dns-scope.h b/src/resolve/resolved-dns-scope.h
index b75f212897cdaf913e2db617a32750c81807168f..2fc2e07debbda89479599ccbaf4da45acf9601c5 100644 (file)
--- a/src/resolve/resolved-dns-scope.h
+++ b/src/resolve/resolved-dns-scope.h
@@ -25,9 +25,10 @@
 
 typedef struct DnsScope DnsScope;
 
-#include "resolved-dns-server.h"
-#include "resolved-dns-packet.h"
 #include "resolved-dns-cache.h"
+#include "resolved-dns-dnssec.h"
+#include "resolved-dns-packet.h"
+#include "resolved-dns-server.h"
 #include "resolved-dns-zone.h"
 #include "resolved-link.h"
 
@@ -44,11 +45,10 @@ struct DnsScope {
 
         DnsProtocol protocol;
         int family;
+        DnssecMode dnssec_mode;
 
         Link *link;
 
-        char **domains;
-
         DnsCache cache;
         DnsZone zone;
 
@@ -60,7 +60,18 @@ struct DnsScope {
         usec_t resend_timeout;
         usec_t max_rtt;
 
-        Hashmap *transactions;
+        LIST_HEAD(DnsQueryCandidate, query_candidates);
+
+        /* Note that we keep track of ongoing transactions in two
+         * ways: once in a hashmap, indexed by the rr key, and once in
+         * a linked list. We use the hashmap to quickly find
+         * transactions we can reuse for a key. But note that there
+         * might be multiple transactions for the same key (because
+         * the zone probing can't reuse a transaction answered from
+         * the zone or the cache), and the hashmap only tracks the
+         * most recent entry. */
+        Hashmap *transactions_by_key;
+        LIST_HEAD(DnsTransaction, transactions);
 
         LIST_FIELDS(DnsScope, scopes);
 };
@@ -71,7 +82,7 @@ DnsScope* dns_scope_free(DnsScope *s);
 void dns_scope_packet_received(DnsScope *s, usec_t rtt);
 void dns_scope_packet_lost(DnsScope *s, usec_t usec);
 
-int dns_scope_emit(DnsScope *s, int fd, DnsPacket *p);
+int dns_scope_emit(DnsScope *s, int fd, DnsServer *server, DnsPacket *p);
 int dns_scope_tcp_socket(DnsScope *s, int family, const union in_addr_union *address, uint16_t port, DnsServer **server);
 int dns_scope_udp_dns_socket(DnsScope *s, DnsServer **server);
 
@@ -82,6 +93,7 @@ DnsServer *dns_scope_get_dns_server(DnsScope *s);
 void dns_scope_next_dns_server(DnsScope *s);
 
 int dns_scope_llmnr_membership(DnsScope *s, bool b);
+int dns_scope_mdns_membership(DnsScope *s, bool b);
 
 void dns_scope_process_query(DnsScope *s, DnsStream *stream, DnsPacket *p);
 
@@ -91,3 +103,7 @@ int dns_scope_notify_conflict(DnsScope *scope, DnsResourceRecord *rr);
 void dns_scope_check_conflicts(DnsScope *scope, DnsPacket *p);
 
 void dns_scope_dump(DnsScope *s, FILE *f);
+
+DnsSearchDomain *dns_scope_get_search_domains(DnsScope *s);
+
+bool dns_scope_name_needs_search_domain(DnsScope *s, const char *name);