/* * net_io.h * $Id: net_io.h,v 1.5 2004/12/04 10:20:52 b081 Exp $ * * Copyright 2004 Bobi B., w1zard0f07@yahoo.com * * This file is part of hdl_dump. * * hdl_dump 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. * * hdl_dump 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 hdl_dump; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */#if !defined (_NET_IO_H)#define _NET_IO_H#include "config.h"#include <stddef.h>#define NET_HIO_SERVER_PORT 0x8081  /* port where server would listen *//* commands */#define CMD_HIO_STAT          0x73746174 /* 'stat'; return HDD unit size in sectors */#define CMD_HIO_READ          0x72656164 /* 'read'; read sectors from the HDD unit */#define CMD_HIO_WRITE         0x77726974 /* 'writ'; write sectors to the HDD unit */#define CMD_HIO_WRITE_NACK    0x7772696e /* 'wrin'; write sectors to the HDD with no ACK */#define CMD_HIO_WRITE_RACK    0x77726972 /* 'wrir'; send dummy ACK 1st, then write sectors */#define CMD_HIO_WRITE_QACK    0x77726971 /* 'wriq'; send dummy ACK before decompr. */#define CMD_HIO_FLUSH         0x666c7368 /* 'flsh'; flush write buff (svr's hio is persistent) */#define CMD_HIO_G_TCPNODELAY  0x67746e64 /* 'gtnd'; get remote TCP_NODELAY sock option */#define CMD_HIO_S_TCPNODELAY  0x73746e64 /* 'stnd'; set remote TCP_NODELAY sock option */#define CMD_HIO_G_ACKNODELAY  0x67616e64 /* 'gand'; get remote ACK_NODELAY sock option */#define CMD_HIO_S_ACKNODELAY  0x73616e64 /* 'sand'; set remote ACK_NODELAY sock option */#define CMD_HIO_POWEROFF      0x706f7778 /* 'powx'; poweroff system */#define HDD_SECTOR_SIZE 512    /* HDD sector size in bytes */#define HDD_NUM_SECTORS  32    /* number of sectors to write at once */#define NET_NUM_SECTORS  32    /* max number of sectors to transfer via network at once */#define NET_IO_CMD_LEN (4 * 4) /* command length in bytes in networking I/O */#if (NET_NUM_SECTORS > 255)/* that is because of compression during network transfers */#  error NET_NUM_SECTORS should fit in a byte (that is < 256).#endif#if (HDD_SECTOR_SIZE * NET_NUM_SECTORS + NET_IO_CMD_LEN > 65536)#  error One should not send more than 64KB via network at once.#endifvoid rle_compress (const unsigned char *input,		   u_int32_t ilength,		   unsigned char *output,		   u_int32_t *olength); /* should have at least one byte extra for each 128 bytes */void rle_expand (const unsigned char *input,		 u_int32_t ilength,		 unsigned char *output,		 u_int32_t *olength);#endif /* _NET_IO_H defined? */