5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 1997 - 2001 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.
20 #ifndef CLIENT_INTERNAL_H
21 #define CLIENT_INTERNAL_H
23 /* Internal context for connection process. This is needed as we
24 doing asynchronous connecting. */
27 SilcClientConnection conn;
34 } SilcClientInternalConnectContext;
36 /* Structure to hold ping time information. Every PING command will
37 add entry of this structure and is removed after reply to the ping
39 struct SilcClientPingStruct {
45 /* Structure to hold away messages set by user. This is mainly created
46 for future extensions where away messages could be set according filters
47 such as nickname and hostname. For now only one away message can
48 be set in one connection. */
49 struct SilcClientAwayStruct {
51 struct SilcClientAwayStruct *next;
54 /* Internal context for the client->internal pointer in the SilcClient. */
55 struct SilcClientInternalStruct {
56 /* All client operations that are implemented by the application. */
57 SilcClientOperations *ops;
59 /* Client Parameters */
60 SilcClientParams *params;
62 /* Table of connections in client. All the connection data is saved here. */
63 SilcClientConnection *conns;
64 SilcUInt32 conns_count;
66 /* Table of listenning sockets in client. Client can have listeners
67 (like key agreement protocol server) and those sockets are saved here.
68 This table is checked always if the connection object cannot be found
69 from the `conns' table. */
70 SilcSocketConnection *sockets;
71 SilcUInt32 sockets_count;
73 /* Registered commands */
76 /* Generic cipher and hash objects. */
77 SilcCipher none_cipher;
83 /* Client version. Used to compare to remote host's version strings. */
84 char *silc_client_version;
87 /* Session resuming callback */
88 typedef void (*SilcClientResumeSessionCallback)(SilcClient client,
89 SilcClientConnection conn,
95 /* Registers generic task for file descriptor for reading from network and
96 writing to network. As being generic task the actual task is allocated
97 only once and after that the same task applies to all registered fd's. */
98 #define SILC_CLIENT_REGISTER_CONNECTION_FOR_IO(fd) \
100 silc_schedule_task_add(client->schedule, (fd), \
101 silc_client_packet_process, \
104 SILC_TASK_PRI_NORMAL); \
107 #define SILC_CLIENT_SET_CONNECTION_FOR_INPUT(s, fd) \
109 silc_schedule_set_listen_fd((s), (fd), SILC_TASK_READ); \
112 #define SILC_CLIENT_SET_CONNECTION_FOR_OUTPUT(s, fd) \
114 silc_schedule_set_listen_fd((s), (fd), (SILC_TASK_READ | \
118 /* Finds socket connection object by file descriptor */
119 #define SILC_CLIENT_GET_SOCK(__x, __fd, __sock) \
123 for (__i = 0; __i < (__x)->internal->conns_count; __i++) \
124 if ((__x)->internal->conns[__i] && \
125 (__x)->internal->conns[__i]->sock->sock == (__fd)) \
128 if (__i >= (__x)->internal->conns_count) { \
130 for (__i = 0; __i < (__x)->internal->sockets_count; __i++) \
131 if ((__x)->internal->sockets[__i] && \
132 (__x)->internal->sockets[__i]->sock == (__fd)) \
133 (__sock) = (__x)->internal->sockets[__i]; \
135 (__sock) = (__x)->internal->conns[__i]->sock; \
138 /* Check whether rekey protocol is active */
139 #define SILC_CLIENT_IS_REKEY(sock) \
140 (sock->protocol && sock->protocol->protocol && \
141 sock->protocol->protocol->type == SILC_PROTOCOL_CLIENT_REKEY)
145 SILC_TASK_CALLBACK_GLOBAL(silc_client_packet_process);
146 int silc_client_packet_send_real(SilcClient client,
147 SilcSocketConnection sock,
149 void silc_client_ftp_free_sessions(SilcClient client,
150 SilcClientConnection conn);
151 void silc_client_ftp_session_free(SilcClientFtpSession session);
152 void silc_client_ftp_session_free_client(SilcClientConnection conn,
153 SilcClientEntry client_entry);
154 void silc_client_packet_send(SilcClient client,
155 SilcSocketConnection sock,
158 SilcIdType dst_id_type,
164 void silc_client_close_connection_real(SilcClient client,
165 SilcSocketConnection sock,
166 SilcClientConnection conn);
167 void silc_client_disconnected_by_server(SilcClient client,
168 SilcSocketConnection sock,
170 void silc_client_error_by_server(SilcClient client,
171 SilcSocketConnection sock,
173 void silc_client_receive_new_id(SilcClient client,
174 SilcSocketConnection sock,
176 void silc_client_save_channel_key(SilcClient client,
177 SilcClientConnection conn,
178 SilcBuffer key_payload,
179 SilcChannelEntry channel);
180 void silc_client_receive_channel_key(SilcClient client,
181 SilcSocketConnection sock,
183 void silc_client_channel_message(SilcClient client,
184 SilcSocketConnection sock,
185 SilcPacketContext *packet);
186 void silc_client_remove_from_channels(SilcClient client,
187 SilcClientConnection conn,
188 SilcClientEntry client_entry);
189 void silc_client_replace_from_channels(SilcClient client,
190 SilcClientConnection conn,
192 SilcClientEntry newclient);
193 void silc_client_process_failure(SilcClient client,
194 SilcSocketConnection sock,
195 SilcPacketContext *packet);
196 void silc_client_key_agreement(SilcClient client,
197 SilcSocketConnection sock,
198 SilcPacketContext *packet);
199 void silc_client_notify_by_server(SilcClient client,
200 SilcSocketConnection sock,
201 SilcPacketContext *packet);
202 void silc_client_private_message(SilcClient client,
203 SilcSocketConnection sock,
204 SilcPacketContext *packet);
205 void silc_client_connection_auth_request(SilcClient client,
206 SilcSocketConnection sock,
207 SilcPacketContext *packet);
208 void silc_client_ftp(SilcClient client,
209 SilcSocketConnection sock,
210 SilcPacketContext *packet);
211 SilcBuffer silc_client_get_detach_data(SilcClient client,
212 SilcClientConnection conn);
213 bool silc_client_process_detach_data(SilcClient client,
214 SilcClientConnection conn,
215 unsigned char **old_id,
216 SilcUInt16 *old_id_len);
217 void silc_client_resume_session(SilcClient client,
218 SilcClientConnection conn,
219 SilcClientResumeSessionCallback callback,