5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 1997 - 2002 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
21 #ifndef SERVER_INTERNAL_H
22 #define SERVER_INTERNAL_H
24 /* Server statistics structure. This holds various statistics about
27 /* Local stats (server and router) */
28 SilcUInt32 my_clients; /* Locally connected clients */
29 SilcUInt32 my_servers; /* Locally connected servers */
30 SilcUInt32 my_routers; /* Locally connected routers */
31 SilcUInt32 my_channels; /* Locally created channels */
32 SilcUInt32 my_chanclients; /* Local clients on local channels */
33 SilcUInt32 my_aways; /* Local clients away (gone) */
34 SilcUInt32 my_detached; /* Local clients detached */
35 SilcUInt32 my_server_ops; /* Local server operators */
36 SilcUInt32 my_router_ops; /* Local router operators */
38 /* Global stats (mainly for router) */
39 SilcUInt32 cell_clients; /* All clients in cell */
40 SilcUInt32 cell_servers; /* All servers in cell */
41 SilcUInt32 cell_channels; /* All channels in cell */
42 SilcUInt32 cell_chanclients; /* All clients on cell's channels */
43 SilcUInt32 clients; /* All clients */
44 SilcUInt32 servers; /* All servers */
45 SilcUInt32 routers; /* All routers */
46 SilcUInt32 channels; /* All channels */
47 SilcUInt32 chanclients; /* All clients on channels */
48 SilcUInt32 aways; /* All clients away (gone) */
49 SilcUInt32 detached; /* All clients detached */
50 SilcUInt32 server_ops; /* All server operators */
51 SilcUInt32 router_ops; /* All router operators */
53 SilcUInt32 secret_channels;
54 SilcUInt32 private_channels;
58 SilcUInt32 conn_attempts; /* Connection attempts */
59 SilcUInt32 conn_failures; /* Connection failure */
60 SilcUInt32 auth_attempts; /* Authentication attempts */
61 SilcUInt32 auth_failures; /* Authentication failures */
62 SilcUInt32 packets_sent; /* Sent SILC packets */
63 SilcUInt32 packets_received; /* Received SILC packets */
64 } SilcServerStatistics;
70 struct SilcServerStruct {
73 SilcServerEntry id_entry;
75 unsigned char *id_string;
76 SilcUInt32 id_string_len;
79 unsigned int server_type : 2; /* Server type (server.h) */
80 unsigned int standalone : 1; /* Set if server is standalone, and
81 does not have connection to network. */
82 unsigned int listenning : 1; /* Set if server is listenning for
83 incoming connections. */
84 unsigned int background : 1; /* Set when server is on background */
85 unsigned int backup_router : 1; /* Set if this is backup router */
86 unsigned int backup_primary : 1; /* Set if we've switched our primary
87 router to a backup router. */
88 unsigned int backup_noswitch: 1; /* Set if we've won't switch to
89 become primary (we are backup) */
90 unsigned int wait_backup : 1; /* Set if we are waiting for backup
91 router to connect to us. */
92 unsigned int server_shutdown: 1; /* Set when shutting down */
94 SilcServerEntry router; /* Pointer to the primary router */
95 unsigned long router_connect; /* Time when router was connected */
96 SilcServerConnection router_conn; /* non-NULL when connecting to the
97 primary router, and NULL otherwise. */
98 SilcServerBackup backup; /* Backup routers */
100 /* Current command identifier, 0 not used */
101 SilcUInt16 cmd_ident;
103 /* SILC server scheduler */
104 SilcSchedule schedule;
107 SilcIDList local_list;
108 SilcIDList global_list;
109 SilcHashTable watcher_list;
111 /* Table of connected sockets */
112 SilcSocketConnection *sockets;
114 /* Server public key */
116 SilcPublicKey public_key;
117 SilcPrivateKey private_key;
119 /* Hash objects for general hashing */
123 /* Configuration object */
124 SilcServerConfig config;
125 SilcServerConfigRef config_ref;
131 /* Server statistics */
132 SilcServerStatistics stat;
134 /* Pending command queue */
135 SilcDList pending_commands;
137 /* Purge context for disconnected clients */
138 SilcIDListPurge purge_i;
139 SilcIDListPurge purge_g;
142 /* SIM (SILC Module) list */
147 /* Failure context. This is allocated when failure packet is received.
148 Failure packets are processed with timeout and data is saved in this
151 SilcSocketConnection sock;
153 } *SilcServerFailureContext;
157 /* Return pointer to the primary router connection */
158 #define SILC_PRIMARY_ROUTE(server) \
159 (!server->standalone && server->router ? server->router->connection : NULL)
161 /* Return TRUE if a packet must be broadcasted (router broadcasts) */
162 #define SILC_BROADCAST(server) (server->server_type == SILC_ROUTER)
164 /* Return TRUE if entry is locally connected or local to us */
165 #define SILC_IS_LOCAL(entry) \
166 (((SilcIDListData)entry)->status & SILC_IDLIST_STATUS_LOCAL)
168 /* Registers generic task for file descriptor for reading from network and
169 writing to network. As being generic task the actual task is allocated
170 only once and after that the same task applies to all registered fd's. */
171 #define SILC_REGISTER_CONNECTION_FOR_IO(fd) \
173 silc_schedule_task_add(server->schedule, (fd), \
174 silc_server_packet_process, \
177 SILC_TASK_PRI_NORMAL); \
180 #define SILC_SET_CONNECTION_FOR_INPUT(s, fd) \
182 silc_schedule_set_listen_fd((s), (fd), SILC_TASK_READ, FALSE); \
185 #define SILC_SET_CONNECTION_FOR_OUTPUT(s, fd) \
187 silc_schedule_set_listen_fd((s), (fd), (SILC_TASK_READ | SILC_TASK_WRITE), \
191 #define SILC_OPER_STATS_UPDATE(c, type, mod) \
193 if ((c)->mode & (mod)) { \
194 if (SILC_IS_LOCAL((c))) \
195 server->stat.my_ ## type ## _ops--; \
196 if (server->server_type == SILC_ROUTER) \
197 server->stat. type ## _ops--; \
198 (c)->mode &= ~(mod); \
202 #define SILC_UMODE_STATS_UPDATE(oper, mod) \
204 if (client->mode & (mod)) { \
205 if (!(mode & (mod))) { \
206 if (SILC_IS_LOCAL(client)) \
207 server->stat.my_ ## oper ## _ops--; \
208 if (server->server_type == SILC_ROUTER) \
209 server->stat. oper ## _ops--; \
212 if (mode & (mod)) { \
213 if (SILC_IS_LOCAL(client)) \
214 server->stat.my_ ## oper ## _ops++; \
215 if (server->server_type == SILC_ROUTER) \
216 server->stat. oper ## _ops++; \
221 #define SILC_GET_SKE_FLAGS(x, p) \
223 if ((x)->param && (x)->param->key_exchange_pfs) \
224 (p)->flags |= SILC_SKE_SP_FLAG_PFS; \
225 if (!(x)->publickeys) \
226 (p)->flags |= SILC_SKE_SP_FLAG_MUTUAL; \
230 SILC_TASK_CALLBACK_GLOBAL(silc_server_rekey_final);
231 void silc_server_watcher_list_destroy(void *key, void *context,