-/*
- * Copyright (C) 1997-2009 Andre Noll <maan@systemlinux.org>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
+/* Copyright (C) 1997 Andre Noll <maan@tuebingen.mpg.de>, see file COPYING. */
-/** \file client.h common client functions and exported symbols from client_common.c */
+/** \file client.h Common client functions and exported symbols from client_common.c. */
-#include <openssl/rc4.h>
-
-/**
- * the different states of a connection from the view of the client
- */
+/** The different states of a connection from the view of the client. */
enum {
- /** tcp connection is established */
+ /** TCP connection is established. */
CL_CONNECTED,
- /** server sends the welcome message */
+ /** Server sends the welcome message. */
CL_RECEIVED_WELCOME,
- /** client sends the authentification request */
+ /** Client sends the authentication request. */
CL_SENT_AUTH,
- /** server sends a challenge */
+ /** Server sends encrypted challenge. */
CL_RECEIVED_CHALLENGE,
- /** clientd solves the challenge and sends the result */
+ /** Client solves the challenge and sends the result. */
CL_SENT_CH_RESPONSE,
- /** server accepts this authentication */
+ /** Server accepts this authentication. */
CL_RECEIVED_PROCEED,
- /** client sends the command */
- CL_SENT_COMMAND,
- /** server expects data */
+ /** Command is executing. */
+ CL_EXECUTING,
+ /** Server is expecting data (addblob commands only). */
CL_SENDING,
- /** client expects data */
- CL_RECEIVING,
};
-/** size of the receiving buffer */
-#define CLIENT_BUFSIZE 8192
-
-/**
- * data specific to a client task
- */
+/** Data specific to a client task. */
struct client_task {
- /** the state of the connection */
+ /** The state of the connection. */
int status;
- /** The file descriptor and the rc4 keys. */
- struct rc4_context rc4c;
- /** the configuration (including the command) */
- struct client_args_info conf;
- /** the config file for client options */
- char *config_file;
- /** the RSA private key */
+ /** The file descriptor and the session keys. */
+ struct stream_cipher_context scc;
+ /** The sideband contexts for receiving/sending. */
+ struct sb_context *sbc[2];
+ /** The buffer tree nodes for receiving/sending. */
+ struct btr_node *btrn[2];
+ /** The hash value of the decrypted challenge. */
+ unsigned char *challenge_hash;
+ /** The parsed command line (including the command). */
+ struct lls_parse_result *lpr;
+ /** The RSA private key. */
char *key_file;
- /** paraslash user name */
+ /** Paraslash user name. */
char *user;
- /** the client task structure */
- struct task task;
- /** the buffer used for handshake and receiving */
- char *buf;
- /** number of bytes loaded in \p buf */
- size_t loaded;
- /** non-zero if the pre_select hook added \p fd to the read fd set */
- int check_r;
- /** non-zero if the pre_select hook added \p fd to the write fd set */
- int check_w;
- /** pointer to the data to be sent to para_server */
- char *inbuf;
- /** number of bytes loaded in \p inbuf */
- size_t *in_loaded;
- /** Non-zero if input task encountered an eof or an error condition. */
- int *in_error;
+ /** The client task structure. */
+ struct task *task;
+ /** List of features supported by the server. */
+ char **features;
};
+#define CLIENT_CMD_PTR (lls_cmd(0, client_suite))
+#define CLIENT_OPT_RESULT(_name, _lpr) \
+ (lls_opt_result(LSG_CLIENT_PARA_CLIENT_OPT_ ## _name, _lpr))
+#define CLIENT_OPT_GIVEN(_name, _lpr) \
+ (lls_opt_given(CLIENT_OPT_RESULT(_name, _lpr)))
+#define CLIENT_OPT_UINT32_VAL(_name, _lpr) \
+ (lls_uint32_val(0, CLIENT_OPT_RESULT(_name, _lpr)))
+#define CLIENT_OPT_STRING_VAL(_name, _lpr) \
+ (lls_string_val(0, CLIENT_OPT_RESULT(_name, _lpr)))
+
void client_close(struct client_task *ct);
-int client_open(int argc, char *argv[], struct client_task **ct,
+int client_parse_config(int argc, char *argv[], struct client_task **ct_ptr,
int *loglevel);
+int client_connect(struct client_task *ct, struct sched *s,
+ struct btr_node *parent, struct btr_node *child);
+int client_open(int argc, char *argv[], struct client_task **ct_ptr,
+ int *loglevel, struct btr_node *parent, struct btr_node *child,
+ struct sched *sched);