1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2 
3 #pragma once
4 
5 #include "list.h"
6 
7 typedef struct DnssdService DnssdService;
8 typedef struct DnssdTxtData DnssdTxtData;
9 
10 typedef struct Manager Manager;
11 typedef struct DnsResourceRecord DnsResourceRecord;
12 typedef struct DnsTxtItem DnsTxtItem;
13 
14 enum {
15         DNS_TXT_ITEM_TEXT,
16         DNS_TXT_ITEM_DATA
17 };
18 
19 struct DnssdTxtData {
20         DnsResourceRecord *rr;
21 
22         LIST_HEAD(DnsTxtItem, txt);
23 
24         LIST_FIELDS(DnssdTxtData, items);
25 };
26 
27 struct DnssdService {
28         char *filename;
29         char *name;
30         char *name_template;
31         char *type;
32         uint16_t port;
33         uint16_t priority;
34         uint16_t weight;
35 
36         DnsResourceRecord *ptr_rr;
37         DnsResourceRecord *srv_rr;
38 
39         /* Section 6.8 of RFC 6763 allows having service
40          * instances with multiple TXT resource records. */
41         LIST_HEAD(DnssdTxtData, txt_data_items);
42 
43         Manager *manager;
44 
45         bool withdrawn:1;
46         uid_t originator;
47 };
48 
49 DnssdService *dnssd_service_free(DnssdService *service);
50 DnssdTxtData *dnssd_txtdata_free(DnssdTxtData *txt_data);
51 DnssdTxtData *dnssd_txtdata_free_all(DnssdTxtData *txt_data);
52 
53 DEFINE_TRIVIAL_CLEANUP_FUNC(DnssdService*, dnssd_service_free);
54 DEFINE_TRIVIAL_CLEANUP_FUNC(DnssdTxtData*, dnssd_txtdata_free);
55 
56 int dnssd_render_instance_name(Manager *m, DnssdService *s, char **ret);
57 int dnssd_load(Manager *manager);
58 int dnssd_txt_item_new_from_string(const char *key, const char *value, DnsTxtItem **ret_item);
59 int dnssd_txt_item_new_from_data(const char *key, const void *value, const size_t size, DnsTxtItem **ret_item);
60 int dnssd_update_rrs(DnssdService *s);
61 int dnssd_signal_conflict(Manager *manager, const char *name);
62