/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
-/***
- This file is part of systemd.
-
- Copyright 2014 Lennart Poettering
-***/
-
#include "socket-util.h"
typedef struct DnsStream DnsStream;
#include "resolved-dns-transaction.h"
#include "resolved-manager.h"
+#if ENABLE_DNS_OVER_TLS
+#include <gnutls/gnutls.h>
+#endif
+
/* Streams are used by three subsystems:
*
* 1. The normal transaction logic when doing a DNS or LLMNR lookup via TCP
uint32_t ttl;
bool identified;
+ /* only when using TCP fast open */
+ union sockaddr_union tfo_address;
+ socklen_t tfo_salen;
+
+#if ENABLE_DNS_OVER_TLS
+ gnutls_session_t tls_session;
+ int tls_handshake;
+ bool tls_bye;
+#endif
+
sd_event_source *io_event_source;
sd_event_source *timeout_event_source;
be16_t write_size, read_size;
DnsPacket *write_packet, *read_packet;
size_t n_written, n_read;
+ OrderedSet *write_queue;
+ int (*on_connection)(DnsStream *s);
int (*on_packet)(DnsStream *s);
int (*complete)(DnsStream *s, int error);
- DnsTransaction *transaction; /* when used by the transaction logic */
+ LIST_HEAD(DnsTransaction, transactions); /* when used by the transaction logic */
+ DnsServer *server; /* when used by the transaction logic */
DnsQuery *query; /* when used by the DNS stub logic */
+ /* used when DNS-over-TLS is enabled */
+ bool encrypted:1;
+
LIST_FIELDS(DnsStream, streams);
};
-int dns_stream_new(Manager *m, DnsStream **s, DnsProtocol protocol, int fd);
+int dns_stream_new(Manager *m, DnsStream **s, DnsProtocol protocol, int fd, const union sockaddr_union *tfo_address);
+#if ENABLE_DNS_OVER_TLS
+int dns_stream_connect_tls(DnsStream *s, gnutls_session_t tls_session);
+#endif
DnsStream *dns_stream_unref(DnsStream *s);
DnsStream *dns_stream_ref(DnsStream *s);
+DEFINE_TRIVIAL_CLEANUP_FUNC(DnsStream*, dns_stream_unref);
+
int dns_stream_write_packet(DnsStream *s, DnsPacket *p);
static inline bool DNS_STREAM_QUEUED(DnsStream *s) {