+++ /dev/null
-/*
-
- client.h
-
- Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
-
- Copyright (C) 1997 - 2000 Pekka Riikonen
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
-*/
-
-#ifndef CLIENT_H
-#define CLIENT_H
-
-/* Forward declaration for client */
-typedef struct SilcClientObject *SilcClient;
-
-/* Forward declaration for client window */
-typedef struct SilcClientWindowObject *SilcClientWindow;
-
-#include "idlist.h"
-
-/* Structure to hold ping time information. Every PING command will
- add entry of this structure and is removed after reply to the ping
- as been received. */
-typedef struct SilcClientPingStruct {
- time_t start_time;
- void *dest_id;
- char *dest_name;
-} SilcClientPing;
-
-/* Structure to hold away messages set by user. This is mainly created
- for future extensions where away messages could be set according filters
- such as nickname and hostname. For now only one away message can
- be set in one connection. */
-typedef struct SilcClientAwayStruct {
- char *away;
- struct SilcClientAwayStruct *next;
-} SilcClientAway;
-
-/* Window structure used in client to associate all the important
- connection (window) specific data to this structure. How the window
- actually appears on the screen in handeled by the silc_screen*
- routines in screen.c. */
-struct SilcClientWindowObject {
- /*
- * Local data
- */
- char *nickname;
-
- /* Local client ID for this connection */
- SilcClientID *local_id;
-
- /* Decoded local ID so that the above defined ID would not have
- to be decoded for every packet. */
- unsigned char *local_id_data;
- unsigned int local_id_data_len;
-
- /* Own client entry. */
- SilcClientEntry local_entry;
-
- /*
- * Remote data
- */
- char *remote_host;
- int remote_port;
- int remote_type;
- char *remote_info;
-
- /* Remote client ID for this connection */
- SilcClientID *remote_id;
-
- /* Remote local ID so that the above defined ID would not have
- to be decoded for every packet. */
- unsigned char *remote_id_data;
- unsigned int remote_id_data_len;
-
- /*
- * Common data
- */
- /* Keys */
- SilcCipher send_key;
- SilcCipher receive_key;
- SilcHmac hmac;
- unsigned char *hmac_key;
- unsigned int hmac_key_len;
-
- /* Client ID and Channel ID cache. Messages transmitted in SILC network
- are done using different unique ID's. These are the cache for
- thoses ID's used in the communication. */
- SilcIDCache client_cache;
- SilcIDCache channel_cache;
- SilcIDCache server_cache;
-
- /* Current channel on window. All channel's are saved (allocated) into
- the cache entries. */
- SilcChannelEntry current_channel;
-
- /* Socket connection object for this connection (window). This
- object will have a back-pointer to this window object for fast
- referencing (sock->user_data). */
- SilcSocketConnection sock;
-
- /* Requested pings. */
- SilcClientPing *ping;
- unsigned int ping_count;
-
- /* Set away message */
- SilcClientAway *away;
-
- /* The actual physical screen. This data is handled by the
- screen handling routines. */
- void *screen;
-};
-
-struct SilcClientObject {
- char *username;
- char *realname;
-
- /* Private and public key */
- SilcPKCS pkcs;
- SilcPublicKey public_key;
- SilcPrivateKey private_key;
-
- /* SILC client task queues */
- SilcTaskQueue io_queue;
- SilcTaskQueue timeout_queue;
- SilcTaskQueue generic_queue;
-
- /* Input buffer that holds the characters user types. This is
- used only to store the typed chars for a while. */
- SilcBuffer input_buffer;
-
- /* Table of windows in client. All the data, including connection
- specific data, is saved in here. */
- SilcClientWindow *windows;
- unsigned int windows_count;
-
- /* Currently active window. This is pointer to the window table
- defined above. This must never be free'd directly. */
- SilcClientWindow current_win;
-
- /* The SILC client screen object */
- SilcScreen screen;
-
- /* Generic cipher and hash objects */
- SilcCipher none_cipher;
- SilcHash md5hash;
- SilcHash sha1hash;
- SilcHmac md5hmac;
- SilcHmac sha1hmac;
-
- /* Configuration object */
- SilcClientConfig config;
-
- /* Random Number Generator */
- SilcRng rng;
-
-#ifdef SILC_SIM
- /* SIM (SILC Module) table */
- SilcSimContext **sim;
- unsigned int sim_count;
-#endif
-};
-
-/* Macros */
-
-#ifndef CTRL
-#define CTRL(x) ((x) & 0x1f) /* Ctrl+x */
-#endif
-
-/* Registers generic task for file descriptor for reading from network and
- writing to network. As being generic task the actual task is allocated
- only once and after that the same task applies to all registered fd's. */
-#define SILC_CLIENT_REGISTER_CONNECTION_FOR_IO(fd) \
-do { \
- SilcTask tmptask = silc_task_register(client->generic_queue, (fd), \
- silc_client_packet_process, \
- context, 0, 0, \
- SILC_TASK_GENERIC, \
- SILC_TASK_PRI_NORMAL); \
- silc_task_set_iotype(tmptask, SILC_TASK_WRITE); \
-} while(0)
-
-#define SILC_CLIENT_SET_CONNECTION_FOR_INPUT(fd) \
-do { \
- silc_schedule_set_listen_fd((fd), (1L << SILC_TASK_READ)); \
-} while(0) \
-
-#define SILC_CLIENT_SET_CONNECTION_FOR_OUTPUT(fd) \
-do { \
- silc_schedule_set_listen_fd((fd), ((1L << SILC_TASK_READ) | \
- (1L << SILC_TASK_WRITE))); \
-} while(0)
-
-/* Finds socket connection object by file descriptor */
-#define SILC_CLIENT_GET_SOCK(__x, __fd, __sock) \
-do { \
- int __i; \
- \
- for (__i = 0; __i < (__x)->windows_count; __i++) \
- if ((__x)->windows[__i]->sock->sock == (__fd)) \
- break; \
- \
- if (__i >= (__x)->windows_count) \
- (__sock) = NULL; \
- (__sock) = (__x)->windows[__i]->sock; \
-} while(0)
-
-/* Returns TRUE if windows is currently active window */
-#define SILC_CLIENT_IS_CURRENT_WIN(__x, __win) ((__x)->current_win == (__win))
-
-/* Prototypes */
-int silc_client_alloc(SilcClient *new_client);
-void silc_client_free(SilcClient client);
-int silc_client_init(SilcClient client);
-void silc_client_stop(SilcClient client);
-void silc_client_run(SilcClient client);
-void silc_client_parse_command_line(unsigned char *buffer,
- unsigned char ***parsed,
- unsigned int **parsed_lens,
- unsigned int **parsed_types,
- unsigned int *parsed_num,
- unsigned int max_args);
-int silc_client_connect_to_server(SilcClient client, int port,
- char *host);
-void silc_client_packet_send(SilcClient client,
- SilcSocketConnection sock,
- SilcPacketType type,
- void *dst_id,
- SilcIdType dst_id_type,
- SilcCipher cipher,
- SilcHmac hmac,
- unsigned char *data,
- unsigned int data_len,
- int force_send);
-void silc_client_packet_send_to_channel(SilcClient client,
- SilcSocketConnection sock,
- SilcChannelEntry channel,
- unsigned char *data,
- unsigned int data_len,
- int force_send);
-void silc_client_packet_send_private_message(SilcClient client,
- SilcSocketConnection sock,
- SilcClientEntry client_entry,
- unsigned char *data,
- unsigned int data_len,
- int force_send);
-void silc_client_close_connection(SilcClient client,
- SilcSocketConnection sock);
-void silc_client_disconnected_by_server(SilcClient client,
- SilcSocketConnection sock,
- SilcBuffer message);
-void silc_client_error_by_server(SilcClient client,
- SilcSocketConnection sock,
- SilcBuffer message);
-void silc_client_notify_by_server(SilcClient client,
- SilcSocketConnection sock,
- SilcBuffer message);
-void silc_client_receive_new_id(SilcClient client,
- SilcSocketConnection sock,
- unsigned char *id_string);
-void silc_client_new_channel_id(SilcClient client,
- SilcSocketConnection sock,
- char *channel_name,
- unsigned int mode,
- unsigned char *id_string);
-void silc_client_receive_channel_key(SilcClient client,
- SilcSocketConnection sock,
- SilcBuffer packet);
-void silc_client_channel_message(SilcClient client,
- SilcSocketConnection sock,
- SilcPacketContext *packet);
-#endif
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