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;
81 /* Client version. Used to compare to remote host's version strings. */
82 char *silc_client_version;
85 /* Session resuming callback */
86 typedef void (*SilcClientResumeSessionCallback)(SilcClient client,
87 SilcClientConnection conn,
93 /* Registers generic task for file descriptor for reading from network and
94 writing to network. As being generic task the actual task is allocated
95 only once and after that the same task applies to all registered fd's. */
96 #define SILC_CLIENT_REGISTER_CONNECTION_FOR_IO(fd) \
98 silc_schedule_task_add(client->schedule, (fd), \
99 silc_client_packet_process, \
102 SILC_TASK_PRI_NORMAL); \
105 #define SILC_CLIENT_SET_CONNECTION_FOR_INPUT(s, fd) \
107 silc_schedule_set_listen_fd((s), (fd), SILC_TASK_READ, FALSE); \
110 #define SILC_CLIENT_SET_CONNECTION_FOR_OUTPUT(s, fd) \
112 silc_schedule_set_listen_fd((s), (fd), (SILC_TASK_READ | \
113 SILC_TASK_WRITE), FALSE); \
116 /* Finds socket connection object by file descriptor */
117 #define SILC_CLIENT_GET_SOCK(__x, __fd, __sock) \
121 for (__i = 0; __i < (__x)->internal->conns_count; __i++) \
122 if ((__x)->internal->conns[__i] && \
123 (__x)->internal->conns[__i]->sock->sock == (__fd)) \
126 if (__i >= (__x)->internal->conns_count) { \
128 for (__i = 0; __i < (__x)->internal->sockets_count; __i++) \
129 if ((__x)->internal->sockets[__i] && \
130 (__x)->internal->sockets[__i]->sock == (__fd)) \
131 (__sock) = (__x)->internal->sockets[__i]; \
133 (__sock) = (__x)->internal->conns[__i]->sock; \
136 /* Check whether rekey protocol is active */
137 #define SILC_CLIENT_IS_REKEY(sock) \
138 (sock->protocol && sock->protocol->protocol && \
139 sock->protocol->protocol->type == SILC_PROTOCOL_CLIENT_REKEY)
143 SILC_TASK_CALLBACK_GLOBAL(silc_client_packet_process);
144 int silc_client_packet_send_real(SilcClient client,
145 SilcSocketConnection sock,
147 void silc_client_ftp_free_sessions(SilcClient client,
148 SilcClientConnection conn);
149 void silc_client_ftp_session_free(SilcClientFtpSession session);
150 void silc_client_ftp_session_free_client(SilcClientConnection conn,
151 SilcClientEntry client_entry);
152 void silc_client_close_connection_real(SilcClient client,
153 SilcSocketConnection sock,
154 SilcClientConnection conn);
155 void silc_client_disconnected_by_server(SilcClient client,
156 SilcSocketConnection sock,
158 void silc_client_error_by_server(SilcClient client,
159 SilcSocketConnection sock,
161 void silc_client_receive_new_id(SilcClient client,
162 SilcSocketConnection sock,
164 void silc_client_save_channel_key(SilcClient client,
165 SilcClientConnection conn,
166 SilcBuffer key_payload,
167 SilcChannelEntry channel);
168 void silc_client_receive_channel_key(SilcClient client,
169 SilcSocketConnection sock,
171 void silc_client_channel_message(SilcClient client,
172 SilcSocketConnection sock,
173 SilcPacketContext *packet);
174 void silc_client_remove_from_channels(SilcClient client,
175 SilcClientConnection conn,
176 SilcClientEntry client_entry);
177 void silc_client_replace_from_channels(SilcClient client,
178 SilcClientConnection conn,
180 SilcClientEntry newclient);
181 void silc_client_process_failure(SilcClient client,
182 SilcSocketConnection sock,
183 SilcPacketContext *packet);
184 void silc_client_key_agreement(SilcClient client,
185 SilcSocketConnection sock,
186 SilcPacketContext *packet);
187 void silc_client_notify_by_server(SilcClient client,
188 SilcSocketConnection sock,
189 SilcPacketContext *packet);
190 void silc_client_private_message(SilcClient client,
191 SilcSocketConnection sock,
192 SilcPacketContext *packet);
193 void silc_client_connection_auth_request(SilcClient client,
194 SilcSocketConnection sock,
195 SilcPacketContext *packet);
196 void silc_client_ftp(SilcClient client,
197 SilcSocketConnection sock,
198 SilcPacketContext *packet);
199 SilcBuffer silc_client_get_detach_data(SilcClient client,
200 SilcClientConnection conn);
201 bool silc_client_process_detach_data(SilcClient client,
202 SilcClientConnection conn,
203 unsigned char **old_id,
204 SilcUInt16 *old_id_len);
205 void silc_client_resume_session(SilcClient client,
206 SilcClientConnection conn,
207 SilcClientResumeSessionCallback callback,
209 SilcBuffer silc_client_attributes_process(SilcClient client,
210 SilcSocketConnection sock,