Systemd/src/resolve/resolved-dnssd.h
Dmitry Rozhkov 400f54fb36 resolved: support multiple TXT RRs per DNS-SD service
Section 6.8 of RFC 6763 allows having service instances with
multiple TXT resource records.
2017-12-08 14:29:27 +02:00

79 lines
2.3 KiB
C

#pragma once
/***
This file is part of systemd.
Copyright 2017 Dmitry Rozhkov
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "list.h"
typedef struct DnssdService DnssdService;
typedef struct DnssdTxtData DnssdTxtData;
typedef struct Manager Manager;
typedef struct DnsResourceRecord DnsResourceRecord;
typedef struct DnsTxtItem DnsTxtItem;
enum {
DNS_TXT_ITEM_TEXT,
DNS_TXT_ITEM_DATA
};
struct DnssdTxtData {
DnsResourceRecord *rr;
LIST_HEAD(DnsTxtItem, txt);
LIST_FIELDS(DnssdTxtData, items);
};
struct DnssdService {
char *filename;
char *name;
char *name_template;
char *type;
uint16_t port;
uint16_t priority;
uint16_t weight;
DnsResourceRecord *ptr_rr;
DnsResourceRecord *srv_rr;
/* Section 6.8 of RFC 6763 allows having service
* instances with multiple TXT resource records. */
LIST_HEAD(DnssdTxtData, txt_data_items);
Manager *manager;
bool withdrawn:1;
uid_t originator;
};
DnssdService *dnssd_service_free(DnssdService *service);
DnssdTxtData *dnssd_txtdata_free(DnssdTxtData *txt_data);
DnssdTxtData *dnssd_txtdata_free_all(DnssdTxtData *txt_data);
DEFINE_TRIVIAL_CLEANUP_FUNC(DnssdService*, dnssd_service_free);
DEFINE_TRIVIAL_CLEANUP_FUNC(DnssdTxtData*, dnssd_txtdata_free);
int dnssd_render_instance_name(DnssdService *s, char **ret_name);
int dnssd_load(Manager *manager);
int dnssd_txt_item_new_from_string(const char *key, const char *value, DnsTxtItem **ret_item);
int dnssd_txt_item_new_from_data(const char *key, const void *value, const size_t size, DnsTxtItem **ret_item);
int dnssd_update_rrs(DnssdService *s);
void dnssd_signal_conflict(Manager *manager, const char *name);