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These lines are generally out-of-date, incomplete and unnecessary.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.
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include "sd-bus.h"
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#include "set.h"
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typedef struct DnsQueryCandidate DnsQueryCandidate;
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typedef struct DnsQuery DnsQuery;
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#include "resolved-dns-answer.h"
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#include "resolved-dns-question.h"
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#include "resolved-dns-stream.h"
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#include "resolved-dns-search-domain.h"
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struct DnsQueryCandidate {
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DnsQuery *query;
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DnsScope *scope;
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DnsSearchDomain *search_domain;
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int error_code;
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Set *transactions;
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LIST_FIELDS(DnsQueryCandidate, candidates_by_query);
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LIST_FIELDS(DnsQueryCandidate, candidates_by_scope);
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};
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struct DnsQuery {
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Manager *manager;
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/* When resolving a service, we first create a TXT+SRV query,
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* and then for the hostnames we discover auxiliary A+AAAA
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* queries. This pointer always points from the auxiliary
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* queries back to the TXT+SRV query. */
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DnsQuery *auxiliary_for;
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LIST_HEAD(DnsQuery, auxiliary_queries);
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unsigned n_auxiliary_queries;
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int auxiliary_result;
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/* The question, formatted in IDNA for use on classic DNS, and as UTF8 for use in LLMNR or mDNS. Note that even
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* on classic DNS some labels might use UTF8 encoding. Specifically, DNS-SD service names (in contrast to their
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* domain suffixes) use UTF-8 encoding even on DNS. Thus, the difference between these two fields is mostly
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* relevant only for explicit *hostname* lookups as well as the domain suffixes of service lookups. */
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DnsQuestion *question_idna;
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DnsQuestion *question_utf8;
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uint64_t flags;
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int ifindex;
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/* If true, A or AAAA RR lookups will be suppressed on links with no routable address of the matching address
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* family */
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bool suppress_unroutable_family;
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/* If true, the RR TTLs of the answer will be clamped by their current left validity in the cache */
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bool clamp_ttl;
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DnsTransactionState state;
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unsigned n_cname_redirects;
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LIST_HEAD(DnsQueryCandidate, candidates);
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sd_event_source *timeout_event_source;
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/* Discovered data */
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DnsAnswer *answer;
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int answer_rcode;
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DnssecResult answer_dnssec_result;
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bool answer_authenticated;
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DnsProtocol answer_protocol;
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int answer_family;
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DnsSearchDomain *answer_search_domain;
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int answer_errno; /* if state is DNS_TRANSACTION_ERRNO */
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bool previous_redirect_unauthenticated;
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/* Bus client information */
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sd_bus_message *request;
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int request_family;
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bool request_address_valid;
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union in_addr_union request_address;
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unsigned block_all_complete;
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char *request_address_string;
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/* DNS stub information */
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DnsPacket *request_dns_packet;
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DnsStream *request_dns_stream;
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DnsPacket *reply_dns_packet;
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/* Completion callback */
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void (*complete)(DnsQuery* q);
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unsigned block_ready;
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sd_bus_track *bus_track;
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LIST_FIELDS(DnsQuery, queries);
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LIST_FIELDS(DnsQuery, auxiliary_queries);
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};
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enum {
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DNS_QUERY_MATCH,
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DNS_QUERY_NOMATCH,
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DNS_QUERY_RESTARTED,
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};
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DnsQueryCandidate* dns_query_candidate_free(DnsQueryCandidate *c);
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void dns_query_candidate_notify(DnsQueryCandidate *c);
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int dns_query_new(Manager *m, DnsQuery **q, DnsQuestion *question_utf8, DnsQuestion *question_idna, int family, uint64_t flags);
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DnsQuery *dns_query_free(DnsQuery *q);
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int dns_query_make_auxiliary(DnsQuery *q, DnsQuery *auxiliary_for);
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int dns_query_go(DnsQuery *q);
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void dns_query_ready(DnsQuery *q);
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int dns_query_process_cname(DnsQuery *q);
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int dns_query_bus_track(DnsQuery *q, sd_bus_message *m);
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DnsQuestion* dns_query_question_for_protocol(DnsQuery *q, DnsProtocol protocol);
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const char *dns_query_string(DnsQuery *q);
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DEFINE_TRIVIAL_CLEANUP_FUNC(DnsQuery*, dns_query_free);
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bool dns_query_fully_authenticated(DnsQuery *q);
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