1 #ifndef foointernalhfoo
2 #define foointernalhfoo
5 This file is part of avahi.
7 avahi is free software; you can redistribute it and/or modify it
8 under the terms of the GNU Lesser General Public License as
9 published by the Free Software Foundation; either version 2.1 of the
10 License, or (at your option) any later version.
12 avahi is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
15 Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with avahi; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 /** A locally registered DNS resource record */
24 typedef struct AvahiEntry AvahiEntry;
26 #include <avahi-common/llist.h>
27 #include <avahi-common/watch.h>
32 #include "timeeventq.h"
38 #include "wide-area.h"
39 #include "multicast-lookup.h"
40 #include "dns-srv-rr.h"
42 #define AVAHI_LEGACY_UNICAST_REFLECT_SLOTS_MAX 100
44 #define AVAHI_FLAGS_VALID(flags, max) (!((flags) & ~(max)))
46 #define AVAHI_RR_HOLDOFF_MSEC 1000
47 #define AVAHI_RR_HOLDOFF_MSEC_RATE_LIMIT 20000
48 #define AVAHI_RR_RATE_LIMIT_COUNT 15
50 typedef struct AvahiLegacyUnicastReflectSlot AvahiLegacyUnicastReflectSlot;
52 struct AvahiLegacyUnicastReflectSlot {
55 uint16_t id, original_id;
59 struct timeval elapse_time;
60 AvahiTimeEvent *time_event;
65 AvahiSEntryGroup *group;
69 AvahiPublishFlags flags;
71 AvahiIfIndex interface;
72 AvahiProtocol protocol;
74 AVAHI_LLIST_FIELDS(AvahiEntry, entries);
75 AVAHI_LLIST_FIELDS(AvahiEntry, by_key);
76 AVAHI_LLIST_FIELDS(AvahiEntry, by_group);
78 AVAHI_LLIST_HEAD(AvahiAnnouncer, announcers);
81 struct AvahiSEntryGroup {
85 AvahiEntryGroupState state;
87 AvahiSEntryGroupCallback callback;
91 unsigned n_register_try;
92 struct timeval register_time;
93 AvahiTimeEvent *register_time_event;
95 struct timeval established_at;
97 AVAHI_LLIST_FIELDS(AvahiSEntryGroup, groups);
98 AVAHI_LLIST_HEAD(AvahiEntry, entries);
102 const AvahiPoll *poll_api;
104 AvahiInterfaceMonitor *monitor;
105 AvahiServerConfig config;
107 AVAHI_LLIST_HEAD(AvahiEntry, entries);
108 AvahiHashmap *entries_by_key;
110 AVAHI_LLIST_HEAD(AvahiSEntryGroup, groups);
112 AVAHI_LLIST_HEAD(AvahiSRecordBrowser, record_browsers);
113 AvahiHashmap *record_browser_hashmap;
114 AVAHI_LLIST_HEAD(AvahiSHostNameResolver, host_name_resolvers);
115 AVAHI_LLIST_HEAD(AvahiSAddressResolver, address_resolvers);
116 AVAHI_LLIST_HEAD(AvahiSDomainBrowser, domain_browsers);
117 AVAHI_LLIST_HEAD(AvahiSServiceTypeBrowser, service_type_browsers);
118 AVAHI_LLIST_HEAD(AvahiSServiceBrowser, service_browsers);
119 AVAHI_LLIST_HEAD(AvahiSServiceResolver, service_resolvers);
120 AVAHI_LLIST_HEAD(AvahiSDNSServerBrowser, dns_server_browsers);
122 int need_entry_cleanup, need_group_cleanup, need_browser_cleanup;
124 AvahiTimeEventQueue *time_event_queue;
126 char *host_name, *host_name_fqdn, *domain_name;
128 int fd_ipv4, fd_ipv6,
129 /* The following two sockets two are used for reflection only */
130 fd_legacy_unicast_ipv4, fd_legacy_unicast_ipv6;
132 AvahiWatch *watch_ipv4, *watch_ipv6,
133 *watch_legacy_unicast_ipv4, *watch_legacy_unicast_ipv6;
135 AvahiServerState state;
136 AvahiServerCallback callback;
139 AvahiSEntryGroup *hinfo_entry_group;
140 AvahiSEntryGroup *browse_domain_entry_group;
141 unsigned n_host_rr_pending;
143 /* Used for assembling responses */
144 AvahiRecordList *record_list;
146 /* Used for reflection of legacy unicast packets */
147 AvahiLegacyUnicastReflectSlot **legacy_unicast_reflect_slots;
148 uint16_t legacy_unicast_reflect_id;
150 /* The last error code */
153 /* The local service cookie */
154 uint32_t local_service_cookie;
156 AvahiMulticastLookupEngine *multicast_lookup_engine;
157 AvahiWideAreaLookupEngine *wide_area_lookup_engine;
160 void avahi_entry_free(AvahiServer*s, AvahiEntry *e);
161 void avahi_entry_group_free(AvahiServer *s, AvahiSEntryGroup *g);
163 void avahi_cleanup_dead_entries(AvahiServer *s);
165 void avahi_server_prepare_response(AvahiServer *s, AvahiInterface *i, AvahiEntry *e, int unicast_response, int auxiliary);
166 void avahi_server_prepare_matching_responses(AvahiServer *s, AvahiInterface *i, AvahiKey *k, int unicast_response);
167 void avahi_server_generate_response(AvahiServer *s, AvahiInterface *i, AvahiDnsPacket *p, const AvahiAddress *a, uint16_t port, int legacy_unicast, int is_probe);
169 void avahi_s_entry_group_change_state(AvahiSEntryGroup *g, AvahiEntryGroupState state);
171 int avahi_entry_is_commited(AvahiEntry *e);
173 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);
175 void avahi_host_rr_entry_group_callback(AvahiServer *s, AvahiSEntryGroup *g, AvahiEntryGroupState state, void *userdata);
177 void avahi_server_decrease_host_rr_pending(AvahiServer *s);
179 int avahi_server_set_errno(AvahiServer *s, int error);
181 int avahi_server_is_service_local(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, const char *name);
182 int avahi_server_is_record_local(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, AvahiRecord *record);
184 int avahi_server_add_ptr(
187 AvahiIfIndex interface,
188 AvahiProtocol protocol,
189 AvahiPublishFlags flags,
194 #define AVAHI_CHECK_VALIDITY(server, expression, error) { \
196 return avahi_server_set_errno((server), (error)); \
199 #define AVAHI_CHECK_VALIDITY_RETURN_NULL(server, expression, error) { \
200 if (!(expression)) { \
201 avahi_server_set_errno((server), (error)); \
206 #define AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(server, expression, error) {\
207 if (!(expression)) { \
208 ret = avahi_server_set_errno((server), (error)); \
213 #define AVAHI_ASSERT_TRUE(expression) { \
214 int __tmp = !!(expression); \
218 #define AVAHI_ASSERT_SUCCESS(expression) { \
219 int __tmp = (expression); \
220 assert(__tmp == 0); \