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 /* Used for scheduling RR cleanup */
125 AvahiTimeEvent *cleanup_time_event;
127 AvahiTimeEventQueue *time_event_queue;
129 char *host_name, *host_name_fqdn, *domain_name;
131 int fd_ipv4, fd_ipv6,
132 /* The following two sockets two are used for reflection only */
133 fd_legacy_unicast_ipv4, fd_legacy_unicast_ipv6;
135 AvahiWatch *watch_ipv4, *watch_ipv6,
136 *watch_legacy_unicast_ipv4, *watch_legacy_unicast_ipv6;
138 AvahiServerState state;
139 AvahiServerCallback callback;
142 AvahiSEntryGroup *hinfo_entry_group;
143 AvahiSEntryGroup *browse_domain_entry_group;
144 unsigned n_host_rr_pending;
146 /* Used for assembling responses */
147 AvahiRecordList *record_list;
149 /* Used for reflection of legacy unicast packets */
150 AvahiLegacyUnicastReflectSlot **legacy_unicast_reflect_slots;
151 uint16_t legacy_unicast_reflect_id;
153 /* The last error code */
156 /* The local service cookie */
157 uint32_t local_service_cookie;
159 AvahiMulticastLookupEngine *multicast_lookup_engine;
160 AvahiWideAreaLookupEngine *wide_area_lookup_engine;
163 void avahi_entry_free(AvahiServer*s, AvahiEntry *e);
164 void avahi_entry_group_free(AvahiServer *s, AvahiSEntryGroup *g);
166 void avahi_cleanup_dead_entries(AvahiServer *s);
168 void avahi_server_prepare_response(AvahiServer *s, AvahiInterface *i, AvahiEntry *e, int unicast_response, int auxiliary);
169 void avahi_server_prepare_matching_responses(AvahiServer *s, AvahiInterface *i, AvahiKey *k, int unicast_response);
170 void avahi_server_generate_response(AvahiServer *s, AvahiInterface *i, AvahiDnsPacket *p, const AvahiAddress *a, uint16_t port, int legacy_unicast, int is_probe);
172 void avahi_s_entry_group_change_state(AvahiSEntryGroup *g, AvahiEntryGroupState state);
174 int avahi_entry_is_commited(AvahiEntry *e);
176 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);
178 void avahi_host_rr_entry_group_callback(AvahiServer *s, AvahiSEntryGroup *g, AvahiEntryGroupState state, void *userdata);
180 void avahi_server_decrease_host_rr_pending(AvahiServer *s);
182 int avahi_server_set_errno(AvahiServer *s, int error);
184 int avahi_server_is_service_local(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, const char *name);
185 int avahi_server_is_record_local(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, AvahiRecord *record);
187 int avahi_server_add_ptr(
190 AvahiIfIndex interface,
191 AvahiProtocol protocol,
192 AvahiPublishFlags flags,
197 #define AVAHI_CHECK_VALIDITY(server, expression, error) { \
199 return avahi_server_set_errno((server), (error)); \
202 #define AVAHI_CHECK_VALIDITY_RETURN_NULL(server, expression, error) { \
203 if (!(expression)) { \
204 avahi_server_set_errno((server), (error)); \
209 #define AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(server, expression, error) {\
210 if (!(expression)) { \
211 ret = avahi_server_set_errno((server), (error)); \
216 #define AVAHI_ASSERT_TRUE(expression) { \
217 int __tmp = !!(expression); \
221 #define AVAHI_ASSERT_SUCCESS(expression) { \
222 int __tmp = (expression); \
223 assert(__tmp == 0); \