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
55 typedef struct CattaLegacyUnicastReflectSlot CattaLegacyUnicastReflectSlot;
57 struct CattaLegacyUnicastReflectSlot {
60 uint16_t id, original_id;
64 struct timeval elapse_time;
65 CattaTimeEvent *time_event;
70 CattaSEntryGroup *group;
74 CattaPublishFlags flags;
77 CattaProtocol protocol;
79 CATTA_LLIST_FIELDS(CattaEntry, entries);
80 CATTA_LLIST_FIELDS(CattaEntry, by_key);
81 CATTA_LLIST_FIELDS(CattaEntry, by_group);
83 CATTA_LLIST_HEAD(CattaAnnouncer, announcers);
86 struct CattaSEntryGroup {
90 CattaEntryGroupState state;
92 CattaSEntryGroupCallback callback;
96 unsigned n_register_try;
97 struct timeval register_time;
98 CattaTimeEvent *register_time_event;
100 struct timeval established_at;
102 CATTA_LLIST_FIELDS(CattaSEntryGroup, groups);
103 CATTA_LLIST_HEAD(CattaEntry, entries);
107 const CattaPoll *poll_api;
109 CattaInterfaceMonitor *monitor;
110 CattaServerConfig config;
112 CATTA_LLIST_HEAD(CattaEntry, entries);
113 CattaHashmap *entries_by_key;
115 CATTA_LLIST_HEAD(CattaSEntryGroup, groups);
117 CATTA_LLIST_HEAD(CattaSRecordBrowser, record_browsers);
118 CattaHashmap *record_browser_hashmap;
119 CATTA_LLIST_HEAD(CattaSHostNameResolver, host_name_resolvers);
120 CATTA_LLIST_HEAD(CattaSAddressResolver, address_resolvers);
121 CATTA_LLIST_HEAD(CattaSDomainBrowser, domain_browsers);
122 CATTA_LLIST_HEAD(CattaSServiceTypeBrowser, service_type_browsers);
123 CATTA_LLIST_HEAD(CattaSServiceBrowser, service_browsers);
124 CATTA_LLIST_HEAD(CattaSServiceResolver, service_resolvers);
125 CATTA_LLIST_HEAD(CattaSDNSServerBrowser, dns_server_browsers);
127 int need_entry_cleanup, need_group_cleanup, need_browser_cleanup;
129 /* Used for scheduling RR cleanup */
130 CattaTimeEvent *cleanup_time_event;
132 CattaTimeEventQueue *time_event_queue;
134 char *host_name, *host_name_fqdn, *domain_name;
136 int fd_ipv4, fd_ipv6,
137 /* The following two sockets two are used for reflection only */
138 fd_legacy_unicast_ipv4, fd_legacy_unicast_ipv6;
140 CattaWatch *watch_ipv4, *watch_ipv6,
141 *watch_legacy_unicast_ipv4, *watch_legacy_unicast_ipv6;
143 CattaServerState state;
144 CattaServerCallback callback;
147 CattaSEntryGroup *hinfo_entry_group;
148 CattaSEntryGroup *browse_domain_entry_group;
149 unsigned n_host_rr_pending;
151 /* Used for assembling responses */
152 CattaRecordList *record_list;
154 /* Used for reflection of legacy unicast packets */
155 CattaLegacyUnicastReflectSlot **legacy_unicast_reflect_slots;
156 uint16_t legacy_unicast_reflect_id;
158 /* The last error code */
161 /* The local service cookie */
162 uint32_t local_service_cookie;
164 CattaMulticastLookupEngine *multicast_lookup_engine;
165 CattaWideAreaLookupEngine *wide_area_lookup_engine;
168 void catta_entry_free(CattaServer*s, CattaEntry *e);
169 void catta_entry_group_free(CattaServer *s, CattaSEntryGroup *g);
171 void catta_cleanup_dead_entries(CattaServer *s);
173 void catta_server_prepare_response(CattaServer *s, CattaInterface *i, CattaEntry *e, int unicast_response, int auxiliary);
174 void catta_server_prepare_matching_responses(CattaServer *s, CattaInterface *i, CattaKey *k, int unicast_response);
175 void catta_server_generate_response(CattaServer *s, CattaInterface *i, CattaDnsPacket *p, const CattaAddress *a, uint16_t port, int legacy_unicast, int is_probe);
177 void catta_s_entry_group_change_state(CattaSEntryGroup *g, CattaEntryGroupState state);
179 int catta_entry_is_commited(CattaEntry *e);
181 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);
183 void catta_host_rr_entry_group_callback(CattaServer *s, CattaSEntryGroup *g, CattaEntryGroupState state, void *userdata);
185 void catta_server_decrease_host_rr_pending(CattaServer *s);
187 int catta_server_set_errno(CattaServer *s, int error);
189 int catta_server_is_service_local(CattaServer *s, CattaIfIndex iface, CattaProtocol protocol, const char *name);
190 int catta_server_is_record_local(CattaServer *s, CattaIfIndex iface, CattaProtocol protocol, CattaRecord *record);
192 int catta_server_add_ptr(
196 CattaProtocol protocol,
197 CattaPublishFlags flags,
202 #define CATTA_CHECK_VALIDITY(server, expression, error) { \
204 return catta_server_set_errno((server), (error)); \
207 #define CATTA_CHECK_VALIDITY_RETURN_NULL(server, expression, error) { \
208 if (!(expression)) { \
209 catta_server_set_errno((server), (error)); \
214 #define CATTA_CHECK_VALIDITY_SET_RET_GOTO_FAIL(server, expression, error) {\
215 if (!(expression)) { \
216 ret = catta_server_set_errno((server), (error)); \
221 #define CATTA_ASSERT_TRUE(expression) { \
222 int __tmp = !!(expression); \
226 #define CATTA_ASSERT_SUCCESS(expression) { \
227 int __tmp = (expression); \
228 assert(__tmp == 0); \