client: Remove sb-compatibility code.
[paraslash.git] / client.h
1 /*
2 * Copyright (C) 1997-2013 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file client.h Common client functions and exported symbols from client_common.c. */
8
9 /** The different states of a connection from the view of the client. */
10 enum {
11 /** TCP connection is established. */
12 CL_CONNECTED,
13 /** Server sends the welcome message. */
14 CL_RECEIVED_WELCOME,
15 /** Client sends the authentication request. */
16 CL_SENT_AUTH,
17 /** Server sends encrypted challenge. */
18 CL_RECEIVED_CHALLENGE,
19 /** Client solves the challenge and sends the result. */
20 CL_SENT_CH_RESPONSE,
21 /** Server accepts this authentication. */
22 CL_RECEIVED_PROCEED,
23 /** Client sends the command. */
24 CL_SENT_COMMAND,
25 /** Server expects data. */
26 CL_SENDING,
27 /** Client expects data. */
28 CL_RECEIVING,
29 };
30
31 /** Data specific to a client task. */
32 struct client_task {
33 /** The state of the connection. */
34 int status;
35 /** The file descriptor and the session keys. */
36 struct stream_cipher_context scc;
37 /** The sideband context. */
38 struct sb_context *sbc;
39 /** The hash value of the decrypted challenge. */
40 unsigned char *challenge_hash;
41 /** The configuration (including the command). */
42 struct client_args_info conf;
43 /** The config file for client options. */
44 char *config_file;
45 /** The RSA private key. */
46 char *key_file;
47 /** Paraslash user name. */
48 char *user;
49 /** The client task structure. */
50 struct task task;
51 /** The buffer tree node of the client task. */
52 struct btr_node *btrn;
53 /** List of features supported by the server. */
54 char **features;
55 };
56
57 void client_disconnect(struct client_task *ct);
58 void client_close(struct client_task *ct);
59 int client_parse_config(int argc, char *argv[], struct client_task **ct_ptr,
60 int *loglevel);
61 int client_connect(struct client_task *ct, struct sched *s,
62 struct btr_node *parent, struct btr_node *child);
63 int client_open(int argc, char *argv[], struct client_task **ct_ptr,
64 int *loglevel, struct btr_node *parent, struct btr_node *child,
65 struct sched *sched);