0c69794138
These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include "socket-util.h"
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typedef struct DnsStream DnsStream;
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#include "resolved-dns-packet.h"
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#include "resolved-dns-transaction.h"
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#include "resolved-manager.h"
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#if HAVE_GNUTLS
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#include <gnutls/gnutls.h>
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#endif
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/* Streams are used by three subsystems:
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*
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* 1. The normal transaction logic when doing a DNS or LLMNR lookup via TCP
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* 2. The LLMNR logic when accepting a TCP-based lookup
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* 3. The DNS stub logic when accepting a TCP-based lookup
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*/
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struct DnsStream {
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Manager *manager;
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int n_ref;
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DnsProtocol protocol;
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int fd;
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union sockaddr_union peer;
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socklen_t peer_salen;
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union sockaddr_union local;
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socklen_t local_salen;
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int ifindex;
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uint32_t ttl;
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bool identified;
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/* only when using TCP fast open */
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union sockaddr_union tfo_address;
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socklen_t tfo_salen;
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#if HAVE_GNUTLS
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gnutls_session_t tls_session;
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int tls_handshake;
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bool tls_bye;
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#endif
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sd_event_source *io_event_source;
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sd_event_source *timeout_event_source;
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be16_t write_size, read_size;
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DnsPacket *write_packet, *read_packet;
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size_t n_written, n_read;
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OrderedSet *write_queue;
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int (*on_connection)(DnsStream *s);
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int (*on_packet)(DnsStream *s);
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int (*complete)(DnsStream *s, int error);
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LIST_HEAD(DnsTransaction, transactions); /* when used by the transaction logic */
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DnsServer *server; /* when used by the transaction logic */
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DnsQuery *query; /* when used by the DNS stub logic */
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/* used when DNS-over-TLS is enabled */
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bool encrypted:1;
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LIST_FIELDS(DnsStream, streams);
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};
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int dns_stream_new(Manager *m, DnsStream **s, DnsProtocol protocol, int fd, const union sockaddr_union *tfo_address);
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#if HAVE_GNUTLS
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int dns_stream_connect_tls(DnsStream *s, gnutls_session_t tls_session);
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#endif
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DnsStream *dns_stream_unref(DnsStream *s);
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DnsStream *dns_stream_ref(DnsStream *s);
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DEFINE_TRIVIAL_CLEANUP_FUNC(DnsStream*, dns_stream_unref);
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int dns_stream_write_packet(DnsStream *s, DnsPacket *p);
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static inline bool DNS_STREAM_QUEUED(DnsStream *s) {
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assert(s);
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if (s->fd < 0) /* already stopped? */
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return false;
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return !!s->write_packet;
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}
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