1 #ifndef foointernalhfoo
2 #define foointernalhfoo
5 This file is part of catta.
7 catta 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 catta 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 catta; 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 CattaEntry CattaEntry;
26 #include <catta/llist.h>
27 #include <catta/watch.h>
28 #include <catta/timeval.h>
29 #include <catta/core.h>
33 #include "timeeventq.h"
39 #include "wide-area.h"
40 #include "multicast-lookup.h"
41 #include "dns-srv-rr.h"
43 #define CATTA_LEGACY_UNICAST_REFLECT_SLOTS_MAX 100
45 #define CATTA_FLAGS_VALID(flags, max) (!((flags) & ~(max)))
47 #define CATTA_RR_HOLDOFF_MSEC 1000
48 #define CATTA_RR_HOLDOFF_MSEC_RATE_LIMIT 20000
49 #define CATTA_RR_RATE_LIMIT_COUNT 15
52 #define closesocket close
53 #define winsock_init()
54 #define winsock_exit()
57 typedef struct CattaLegacyUnicastReflectSlot CattaLegacyUnicastReflectSlot;
59 struct CattaLegacyUnicastReflectSlot {
62 uint16_t id, original_id;
66 struct timeval elapse_time;
67 CattaTimeEvent *time_event;
72 CattaSEntryGroup *group;
76 CattaPublishFlags flags;
79 CattaProtocol protocol;
81 CATTA_LLIST_FIELDS(CattaEntry, entries);
82 CATTA_LLIST_FIELDS(CattaEntry, by_key);
83 CATTA_LLIST_FIELDS(CattaEntry, by_group);
85 CATTA_LLIST_HEAD(CattaAnnouncer, announcers);
88 struct CattaSEntryGroup {
92 CattaEntryGroupState state;
94 CattaSEntryGroupCallback callback;
98 unsigned n_register_try;
99 struct timeval register_time;
100 CattaTimeEvent *register_time_event;
102 struct timeval established_at;
104 CATTA_LLIST_FIELDS(CattaSEntryGroup, groups);
105 CATTA_LLIST_HEAD(CattaEntry, entries);
109 const CattaPoll *poll_api;
111 CattaInterfaceMonitor *monitor;
112 CattaServerConfig config;
114 CATTA_LLIST_HEAD(CattaEntry, entries);
115 CattaHashmap *entries_by_key;
117 CATTA_LLIST_HEAD(CattaSEntryGroup, groups);
119 CATTA_LLIST_HEAD(CattaSRecordBrowser, record_browsers);
120 CattaHashmap *record_browser_hashmap;
121 CATTA_LLIST_HEAD(CattaSHostNameResolver, host_name_resolvers);
122 CATTA_LLIST_HEAD(CattaSAddressResolver, address_resolvers);
123 CATTA_LLIST_HEAD(CattaSDomainBrowser, domain_browsers);
124 CATTA_LLIST_HEAD(CattaSServiceTypeBrowser, service_type_browsers);
125 CATTA_LLIST_HEAD(CattaSServiceBrowser, service_browsers);
126 CATTA_LLIST_HEAD(CattaSServiceResolver, service_resolvers);
127 CATTA_LLIST_HEAD(CattaSDNSServerBrowser, dns_server_browsers);
129 int need_entry_cleanup, need_group_cleanup, need_browser_cleanup;
131 /* Used for scheduling RR cleanup */
132 CattaTimeEvent *cleanup_time_event;
134 CattaTimeEventQueue *time_event_queue;
136 char *host_name, *host_name_fqdn, *domain_name;
138 int fd_ipv4, fd_ipv6,
139 /* The following two sockets two are used for reflection only */
140 fd_legacy_unicast_ipv4, fd_legacy_unicast_ipv6;
142 CattaWatch *watch_ipv4, *watch_ipv6,
143 *watch_legacy_unicast_ipv4, *watch_legacy_unicast_ipv6;
145 CattaServerState state;
146 CattaServerCallback callback;
149 CattaSEntryGroup *hinfo_entry_group;
150 CattaSEntryGroup *browse_domain_entry_group;
151 unsigned n_host_rr_pending;
153 /* Used for assembling responses */
154 CattaRecordList *record_list;
156 /* Used for reflection of legacy unicast packets */
157 CattaLegacyUnicastReflectSlot **legacy_unicast_reflect_slots;
158 uint16_t legacy_unicast_reflect_id;
160 /* The last error code */
163 /* The local service cookie */
164 uint32_t local_service_cookie;
166 CattaMulticastLookupEngine *multicast_lookup_engine;
167 CattaWideAreaLookupEngine *wide_area_lookup_engine;
170 void catta_entry_free(CattaServer*s, CattaEntry *e);
171 void catta_entry_group_free(CattaServer *s, CattaSEntryGroup *g);
173 void catta_cleanup_dead_entries(CattaServer *s);
175 void catta_server_prepare_response(CattaServer *s, CattaInterface *i, CattaEntry *e, int unicast_response, int auxiliary);
176 void catta_server_prepare_matching_responses(CattaServer *s, CattaInterface *i, CattaKey *k, int unicast_response);
177 void catta_server_generate_response(CattaServer *s, CattaInterface *i, CattaDnsPacket *p, const CattaAddress *a, uint16_t port, int legacy_unicast, int is_probe);
179 void catta_s_entry_group_change_state(CattaSEntryGroup *g, CattaEntryGroupState state);
181 int catta_entry_is_commited(CattaEntry *e);
183 void catta_server_enumerate_aux_records(CattaServer *s, CattaInterface *i, CattaRecord *r, void (*callback)(CattaServer *s, CattaRecord *r, int flush_cache, void* userdata), void* userdata);
185 void catta_host_rr_entry_group_callback(CattaServer *s, CattaSEntryGroup *g, CattaEntryGroupState state, void *userdata);
187 void catta_server_decrease_host_rr_pending(CattaServer *s);
189 int catta_server_set_errno(CattaServer *s, int error);
191 int catta_server_is_service_local(CattaServer *s, CattaIfIndex iface, CattaProtocol protocol, const char *name);
192 int catta_server_is_record_local(CattaServer *s, CattaIfIndex iface, CattaProtocol protocol, CattaRecord *record);
194 int catta_server_add_ptr(
198 CattaProtocol protocol,
199 CattaPublishFlags flags,
204 #define CATTA_CHECK_VALIDITY(server, expression, error) { \
206 return catta_server_set_errno((server), (error)); \
209 #define CATTA_CHECK_VALIDITY_RETURN_NULL(server, expression, error) { \
210 if (!(expression)) { \
211 catta_server_set_errno((server), (error)); \
216 #define CATTA_CHECK_VALIDITY_SET_RET_GOTO_FAIL(server, expression, error) {\
217 if (!(expression)) { \
218 ret = catta_server_set_errno((server), (error)); \
223 #define CATTA_ASSERT_TRUE(expression) { \
224 int __tmp = !!(expression); \
228 #define CATTA_ASSERT_SUCCESS(expression) { \
229 int __tmp = (expression); \
230 assert(__tmp == 0); \