git.meshlink.io Git - catta/blob - avahi-core/server.h

   1 #ifndef fooserverhfoo
   2 #define fooserverhfoo
   3
   4 /* $Id$ */
   5
   6 /***
   7   This file is part of avahi.
   8
   9   avahi is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as
  11   published by the Free Software Foundation; either version 2.1 of the
  12   License, or (at your option) any later version.
  13
  14   avahi is distributed in the hope that it will be useful, but WITHOUT
  15   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  16   or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
  17   Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public
  20   License along with avahi; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #include <avahi-common/llist.h>
  26 #include <avahi-common/watch.h>
  27
  28 /** A locally registered DNS resource record */
  29 typedef struct AvahiEntry AvahiEntry;
  30
  31 #include "core.h"
  32 #include "iface.h"
  33 #include "prioq.h"
  34 #include "timeeventq.h"
  35 #include "announce.h"
  36 #include "browse.h"
  37 #include "dns.h"
  38 #include "rrlist.h"
  39 #include "hashmap.h"
  40 #include "wide-area.h"
  41 #include "multicast-lookup.h"
  42
  43 #define AVAHI_MAX_LEGACY_UNICAST_REFLECT_SLOTS 100
  44
  45 typedef struct AvahiLegacyUnicastReflectSlot AvahiLegacyUnicastReflectSlot;
  46
  47 struct AvahiLegacyUnicastReflectSlot {
  48     AvahiServer *server;
  49
  50     uint16_t id, original_id;
  51     AvahiAddress address;
  52     uint16_t port;
  53     int interface;
  54     struct timeval elapse_time;
  55     AvahiTimeEvent *time_event;
  56 };
  57
  58 struct AvahiEntry {
  59     AvahiServer *server;
  60     AvahiSEntryGroup *group;
  61
  62     int dead;
  63
  64     AvahiEntryFlags flags;
  65     AvahiRecord *record;
  66     AvahiIfIndex interface;
  67     AvahiProtocol protocol;
  68
  69     AVAHI_LLIST_FIELDS(AvahiEntry, entries);
  70     AVAHI_LLIST_FIELDS(AvahiEntry, by_key);
  71     AVAHI_LLIST_FIELDS(AvahiEntry, by_group);
  72
  73     AVAHI_LLIST_HEAD(AvahiAnnouncement, announcements);
  74 };
  75
  76 struct AvahiSEntryGroup {
  77     AvahiServer *server;
  78     int dead;
  79
  80     AvahiEntryGroupState state;
  81     void* userdata;
  82     AvahiSEntryGroupCallback callback;
  83
  84     unsigned n_probing;
  85
  86     unsigned n_register_try;
  87     struct timeval register_time;
  88     AvahiTimeEvent *register_time_event;
  89
  90     AVAHI_LLIST_FIELDS(AvahiSEntryGroup, groups);
  91     AVAHI_LLIST_HEAD(AvahiEntry, entries);
  92 };
  93
  94 struct AvahiServer {
  95     const AvahiPoll *poll_api;
  96
  97     AvahiInterfaceMonitor *monitor;
  98     AvahiServerConfig config;
  99
 100     AVAHI_LLIST_HEAD(AvahiEntry, entries);
 101     AvahiHashmap *entries_by_key;
 102
 103     AVAHI_LLIST_HEAD(AvahiSEntryGroup, groups);
 104
 105     AVAHI_LLIST_HEAD(AvahiSRecordBrowser, record_browsers);
 106     AvahiHashmap *record_browser_hashmap;
 107     AVAHI_LLIST_HEAD(AvahiSHostNameResolver, host_name_resolvers);
 108     AVAHI_LLIST_HEAD(AvahiSAddressResolver, address_resolvers);
 109     AVAHI_LLIST_HEAD(AvahiSDomainBrowser, domain_browsers);
 110     AVAHI_LLIST_HEAD(AvahiSServiceTypeBrowser, service_type_browsers);
 111     AVAHI_LLIST_HEAD(AvahiSServiceBrowser, service_browsers);
 112     AVAHI_LLIST_HEAD(AvahiSServiceResolver, service_resolvers);
 113     AVAHI_LLIST_HEAD(AvahiSDNSServerBrowser, dns_server_browsers);
 114
 115     int need_entry_cleanup, need_group_cleanup, need_browser_cleanup;
 116
 117     AvahiTimeEventQueue *time_event_queue;
 118
 119     char *host_name, *host_name_fqdn, *domain_name;
 120
 121     int fd_ipv4, fd_ipv6,
 122         /* The following two sockets two are used for reflection only */
 123         fd_legacy_unicast_ipv4, fd_legacy_unicast_ipv6;
 124
 125     AvahiWatch *watch_ipv4, *watch_ipv6,
 126         *watch_legacy_unicast_ipv4, *watch_legacy_unicast_ipv6;
 127
 128     AvahiServerState state;
 129     AvahiServerCallback callback;
 130     void* userdata;
 131
 132     AvahiSEntryGroup *hinfo_entry_group;
 133     AvahiSEntryGroup *browse_domain_entry_group;
 134     unsigned n_host_rr_pending;
 135
 136     /* Used for assembling responses */
 137     AvahiRecordList *record_list;
 138
 139     /* Used for reflection of legacy unicast packets */
 140     AvahiLegacyUnicastReflectSlot **legacy_unicast_reflect_slots;
 141     uint16_t legacy_unicast_reflect_id;
 142
 143     /* The last error code */
 144     int error;
 145
 146     /* The local service cookie */
 147     uint32_t local_service_cookie;
 148
 149     AvahiMulticastLookupEngine *multicast_lookup_engine;
 150     AvahiWideAreaLookupEngine *wide_area_lookup_engine;
 151 };
 152
 153 int avahi_server_entry_match_interface(AvahiEntry *e, AvahiInterface *i);
 154
 155 void avahi_server_post_query(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, AvahiKey *key);
 156
 157 void avahi_server_prepare_response(AvahiServer *s, AvahiInterface *i, AvahiEntry *e, int unicast_response, int auxiliary);
 158 void avahi_server_prepare_matching_responses(AvahiServer *s, AvahiInterface *i, AvahiKey *k, int unicast_response);
 159 void avahi_server_generate_response(AvahiServer *s, AvahiInterface *i, AvahiDnsPacket *p, const AvahiAddress *a, uint16_t port, int legacy_unicast, int is_probe);
 160
 161 void avahi_s_entry_group_change_state(AvahiSEntryGroup *g, AvahiEntryGroupState state);
 162
 163 int avahi_entry_is_commited(AvahiEntry *e);
 164
 165 void avahi_server_enumerate_aux_records(AvahiServer *s, AvahiInterface *i, AvahiRecord *r, void (*callback)(AvahiServer *s, AvahiRecord *r, int flush_cache, void* userdata), void* userdata);
 166
 167 void avahi_host_rr_entry_group_callback(AvahiServer *s, AvahiSEntryGroup *g, AvahiEntryGroupState state, void *userdata);
 168
 169 void avahi_server_decrease_host_rr_pending(AvahiServer *s);
 170 void avahi_server_increase_host_rr_pending(AvahiServer *s);
 171
 172 int avahi_server_set_errno(AvahiServer *s, int error);
 173
 174 #endif