X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=client.h;h=667607e23cf554e7598006d8f0d19268afe6c11d;hp=1c9a8c22ae4dabd73a20547c8ce6bc195989e218;hb=fa578bf1d070161cafcbcc69ca7b810414ee1a4b;hpb=4c6dd71312400fc04b3f0582b23a0cff831ee8fa diff --git a/client.h b/client.h index 1c9a8c22..667607e2 100644 --- a/client.h +++ b/client.h @@ -1,96 +1,52 @@ /* - * Copyright (C) 1997-2006 Andre Noll + * Copyright (C) 1997-2011 Andre Noll * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Licensed under the GPL v2. For licencing details see 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 -/** - * 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 authentification request. */ CL_SENT_AUTH, - /** server sends a 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 */ + /** Client sends the command. */ CL_SENT_COMMAND, - /** server expects data */ + /** Server expects data. */ CL_SENDING, - /** client expects data */ + /** Client expects data. */ CL_RECEIVING, }; -#define CLIENT_BUFSIZE 8192 - -/** - * data specific to a client task - */ -struct private_client_data { - /** the state of the connection */ +/** Data specific to a client task. */ +struct client_task { + /** The state of the connection. */ int status; - /** the file descriptor */ - int fd; - /** the configuration (including the command) */ + /** 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 */ + /** The config file for client options. */ char *config_file; - /** the RSA private key */ + /** The RSA private key. */ char *key_file; - /** paraslash user name */ + /** Paraslash user name. */ char *user; - /** session key for receiving data */ - RC4_KEY rc4_recv_key; - /** session key for sending data */ - RC4_KEY rc4_send_key; - /** the client task structure */ + /** The client task structure. */ struct task task; - /** non-zero if task is unregistered */ - int eof; - /** the buffer used for handshake and receiving */ - char buf[CLIENT_BUFSIZE]; - /** 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; - /** the decrypted challenge */ - long unsigned challenge_nr; - /** 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 errro condition */ - int *in_eof; + struct btr_node *btrn; }; -int client_open(struct private_client_data *pcd); -void client_close(struct private_client_data *pcd); -int client_parse_config(int argc, char *argv[], - struct private_client_data **pcd_ptr); -void client_pre_select(struct sched *s, struct task *t); -void client_post_select(struct sched *s, struct task *t); +void client_close(struct client_task *ct); +int client_open(int argc, char *argv[], struct client_task **ct_ptr, + int *loglevel, struct btr_node *parent, struct btr_node *child);