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 "core.h"
  26 #include "iface.h"
  27 #include "prioq.h"
  28 #include "llist.h"
  29 #include "timeeventq.h"
  30 #include "announce.h"
  31 #include "browse.h"
  32 #include "dns.h"
  33 #include "rrlist.h"
  34
  35 #define AVAHI_MAX_LEGACY_UNICAST_REFLECT_SLOTS 100
  36
  37 typedef struct AvahiLegacyUnicastReflectSlot AvahiLegacyUnicastReflectSlot;
  38
  39 struct AvahiLegacyUnicastReflectSlot {
  40     AvahiServer *server;
  41
  42     guint16 id, original_id;
  43     AvahiAddress address;
  44     guint16 port;
  45     gint interface;
  46     GTimeVal elapse_time;
  47     AvahiTimeEvent *time_event;
  48 };
  49
  50 struct AvahiEntry {
  51     AvahiServer *server;
  52     AvahiEntryGroup *group;
  53
  54     gboolean dead;
  55
  56     AvahiEntryFlags flags;
  57     AvahiRecord *record;
  58     gint interface;
  59     guchar protocol;
  60
  61     AVAHI_LLIST_FIELDS(AvahiEntry, entries);
  62     AVAHI_LLIST_FIELDS(AvahiEntry, by_key);
  63     AVAHI_LLIST_FIELDS(AvahiEntry, by_group);
  64
  65     AVAHI_LLIST_HEAD(AvahiAnnouncement, announcements);
  66 };
  67
  68 struct AvahiEntryGroup {
  69     AvahiServer *server;
  70     gboolean dead;
  71
  72     AvahiEntryGroupState state;
  73     gpointer userdata;
  74     AvahiEntryGroupCallback callback;
  75
  76     guint n_probing;
  77
  78     AVAHI_LLIST_FIELDS(AvahiEntryGroup, groups);
  79     AVAHI_LLIST_HEAD(AvahiEntry, entries);
  80 };
  81
  82 struct AvahiServer {
  83     GMainContext *context;
  84     AvahiInterfaceMonitor *monitor;
  85
  86     AvahiServerConfig config;
  87
  88     AVAHI_LLIST_HEAD(AvahiEntry, entries);
  89     GHashTable *entries_by_key;
  90
  91     AVAHI_LLIST_HEAD(AvahiEntryGroup, groups);
  92
  93     AVAHI_LLIST_HEAD(AvahiRecordBrowser, record_browsers);
  94     GHashTable *record_browser_hashtable;
  95     AVAHI_LLIST_HEAD(AvahiHostNameResolver, host_name_resolvers);
  96     AVAHI_LLIST_HEAD(AvahiAddressResolver, address_resolvers);
  97     AVAHI_LLIST_HEAD(AvahiDomainBrowser, domain_browsers);
  98     AVAHI_LLIST_HEAD(AvahiServiceTypeBrowser, service_type_browsers);
  99     AVAHI_LLIST_HEAD(AvahiServiceBrowser, service_browsers);
 100     AVAHI_LLIST_HEAD(AvahiServiceResolver, service_resolvers);
 101
 102     gboolean need_entry_cleanup, need_group_cleanup, need_browser_cleanup;
 103
 104     AvahiTimeEventQueue *time_event_queue;
 105
 106     gchar *host_name, *host_name_fqdn, *domain_name;
 107
 108     gint fd_ipv4, fd_ipv6,
 109         /* The following two sockets two are used for reflection only */
 110         fd_legacy_unicast_ipv4, fd_legacy_unicast_ipv6;
 111
 112     GPollFD pollfd_ipv4, pollfd_ipv6, pollfd_legacy_unicast_ipv4, pollfd_legacy_unicast_ipv6;
 113     GSource *source;
 114
 115     AvahiServerState state;
 116     AvahiServerCallback callback;
 117     gpointer userdata;
 118
 119     AvahiEntryGroup *hinfo_entry_group;
 120     AvahiEntryGroup *browse_domain_entry_group;
 121     guint n_host_rr_pending;
 122
 123     AvahiTimeEvent *register_time_event;
 124
 125     /* Used for assembling responses */
 126     AvahiRecordList *record_list;
 127
 128     /* Used for reflection of legacy unicast packets */
 129     AvahiLegacyUnicastReflectSlot **legacy_unicast_reflect_slots;
 130     guint16 legacy_unicast_reflect_id;
 131 };
 132
 133 gboolean avahi_server_entry_match_interface(AvahiEntry *e, AvahiInterface *i);
 134
 135 void avahi_server_post_query(AvahiServer *s, gint interface, guchar protocol, AvahiKey *key);
 136
 137 void avahi_server_prepare_response(AvahiServer *s, AvahiInterface *i, AvahiEntry *e, gboolean unicast_response, gboolean auxiliary);
 138 void avahi_server_prepare_matching_responses(AvahiServer *s, AvahiInterface *i, AvahiKey *k, gboolean unicast_response);
 139 void avahi_server_generate_response(AvahiServer *s, AvahiInterface *i, AvahiDnsPacket *p, const AvahiAddress *a, guint16 port, gboolean legacy_unicast);
 140
 141 void avahi_entry_group_change_state(AvahiEntryGroup *g, AvahiEntryGroupState state);
 142
 143 gboolean avahi_entry_commited(AvahiEntry *e);
 144
 145 void avahi_server_enumerate_aux_records(AvahiServer *s, AvahiInterface *i, AvahiRecord *r, void (*callback)(AvahiServer *s, AvahiRecord *r, gboolean flush_cache, gpointer userdata), gpointer userdata);
 146
 147 void avahi_host_rr_entry_group_callback(AvahiServer *s, AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata);
 148
 149 void avahi_server_decrease_host_rr_pending(AvahiServer *s);
 150 void avahi_server_increase_host_rr_pending(AvahiServer *s);
 151
 152 #endif