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; version 2 of the License.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
23 /* This function is used to remove all client entries by the server `entry'.
24 This is called when the connection is lost to the server. In this case
25 we must invalidate all the client entries owned by the server `entry'.
26 If the `server_signoff' is TRUE then the SERVER_SIGNOFF notify is
27 distributed to our local clients. */
28 bool silc_server_remove_clients_by_server(SilcServer server,
29 SilcServerEntry entry,
32 /* Updates the clients that are originated from the `from' to be originated
33 from the `to'. If the `resolve_real_server' is TRUE then this will
34 attempt to figure out which clients really are originated from the
35 `from' and which are originated from a server that we have connection
36 to, when we've acting as backup router. If it is FALSE the `to' will
37 be the new source. This function also removes the clients that are
38 *really* originated from `from' if `remove_from' is TRUE. These are
39 clients that the `from' owns, and not just clients that are behind
41 void silc_server_update_clients_by_server(SilcServer server,
44 bool resolve_real_server,
47 /* Updates servers that are from `from' to be originated from `to'. This
48 will also update the server's connection to `to's connection. */
49 void silc_server_update_servers_by_server(SilcServer server,
53 /* Removes channels that are from `from. */
54 void silc_server_remove_channels_by_server(SilcServer server,
55 SilcServerEntry from);
57 /* Updates channels that are from `from' to be originated from `to'. */
58 void silc_server_update_channels_by_server(SilcServer server,
62 /* Checks whether given channel has global users. If it does this returns
63 TRUE and FALSE if there is only locally connected clients on the channel. */
64 bool silc_server_channel_has_global(SilcChannelEntry channel);
66 /* Checks whether given channel has locally connected users. If it does this
67 returns TRUE and FALSE if there is not one locally connected client. */
68 bool silc_server_channel_has_local(SilcChannelEntry channel);
70 /* This function removes the channel and all users on the channel, unless
71 the channel is permanent. In this case the channel is disabled but all
72 users are removed from the channel. Returns TRUE if the channel is
73 destroyed totally, and FALSE if it is permanent and remains. */
74 bool silc_server_channel_delete(SilcServer server,
75 SilcChannelEntry channel);
77 /* Returns TRUE if the given client is on the channel. FALSE if not.
78 This works because we assure that the user list on the channel is
79 always in up to date thus we can only check the channel list from
80 `client' which is faster than checking the user list from `channel'. */
81 bool silc_server_client_on_channel(SilcClientEntry client,
82 SilcChannelEntry channel,
83 SilcChannelClientEntry *chl);
85 /* Checks string for bad characters and returns TRUE if they are found. */
86 bool silc_server_name_bad_chars(const char *name, SilcUInt32 name_len);
88 /* Modifies the `nick' if it includes bad characters and returns new
89 allocated nickname that does not include bad characters. */
90 char *silc_server_name_modify_bad(const char *name, SilcUInt32 name_len);
92 /* Find number of sockets by IP address indicated by `ip'. Returns 0 if
93 socket connections with the IP address does not exist. */
94 SilcUInt32 silc_server_num_sockets_by_ip(SilcServer server, const char *ip,
97 /* Find number of sockets by IP address indicated by remote host, indicatd
98 by `ip' or `hostname', `port', and `type'. Returns 0 if socket connections
99 does not exist. If `ip' is provided then `hostname' is ignored. */
100 SilcUInt32 silc_server_num_sockets_by_remote(SilcServer server,
102 const char *hostname,
104 SilcSocketType type);
106 /* Finds locally cached public key by the public key received in the SKE.
107 If we have it locally cached then we trust it and will use it in the
108 authentication protocol. Returns the locally cached public key or NULL
109 if we do not find the public key. */
110 SilcPublicKey silc_server_find_public_key(SilcServer server,
111 SilcHashTable local_public_keys,
112 SilcPublicKey remote_public_key);
114 /* This returns the first public key from the table of public keys. This
115 is used only in cases where single public key exists in the table and
116 we want to get a pointer to it. For public key tables that has multiple
117 keys in it the silc_server_find_public_key must be used. */
118 SilcPublicKey silc_server_get_public_key(SilcServer server,
119 SilcHashTable local_public_keys);
121 /* Check whether the connection `sock' is allowed to connect to us. This
122 checks for example whether there is too much connections for this host,
123 and required version for the host etc. */
124 bool silc_server_connection_allowed(SilcServer server,
125 SilcSocketConnection sock,
127 SilcServerConfigConnParams *global,
128 SilcServerConfigConnParams *params,
131 /* Checks that client has rights to add or remove channel modes. If any
132 of the checks fails FALSE is returned. */
133 bool silc_server_check_cmode_rights(SilcServer server,
134 SilcChannelEntry channel,
135 SilcChannelClientEntry client,
138 /* Check that the client has rights to change its user mode. Returns
139 FALSE if setting some mode is not allowed. */
140 bool silc_server_check_umode_rights(SilcServer server,
141 SilcClientEntry client,
144 /* This function is used to send the notify packets and motd to the
145 incoming client connection. */
146 void silc_server_send_connect_notifys(SilcServer server,
147 SilcSocketConnection sock,
148 SilcClientEntry client);
150 /* Kill the client indicated by `remote_client' sending KILLED notify
151 to the client, to all channels client has joined and to primary
152 router if needed. The killed client is also removed from all channels. */
153 void silc_server_kill_client(SilcServer server,
154 SilcClientEntry remote_client,
157 SilcIdType killer_id_type);
159 /* This function checks whether the `client' nickname is being watched
160 by someone, and notifies the watcher of the notify change of notify
161 type indicated by `notify'. */
162 bool silc_server_check_watcher_list(SilcServer server,
163 SilcClientEntry client,
164 const char *new_nick,
165 SilcNotifyType notify);
167 /* Remove the `client' from watcher list. After calling this the `client'
168 is not watching any nicknames. */
169 bool silc_server_del_from_watcher_list(SilcServer server,
170 SilcClientEntry client);
172 /* Force the client indicated by `chl' to change the channel user mode
173 on channel indicated by `channel' to `forced_mode'. */
174 bool silc_server_force_cumode_change(SilcServer server,
175 SilcSocketConnection sock,
176 SilcChannelEntry channel,
177 SilcChannelClientEntry chl,
178 SilcUInt32 forced_mode);
180 #endif /* SERVER_UTIL_H */