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154 lines
7.2 KiB
C
154 lines
7.2 KiB
C
#ifndef EL__PROTOCOL_FSP_FSPLIB_H
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#define EL__PROTOCOL_FSP_FSPLIB_H
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#include <time.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <stddef.h>
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/* The FSP v2 protocol support library - public interface */
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/*
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This file is part of fsplib - FSP protocol stack implemented in C
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language. See http://fsp.sourceforge.net for more information.
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Copyright (c) 2003-2005 by Radim HSN Kolar (hsn@sendmail.cz)
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You may copy or modify this file in any manner you wish, provided
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that this notice is always included, and that you hold the author
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harmless for any loss or damage resulting from the installation or
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use of this software.
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This is a free software. Be creative.
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Let me know of any bugs and suggestions.
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*/
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/* definition of FSP protocol v2 commands */
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#define FSP_CC_VERSION 0x10 /* return server's version string. */
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#define FSP_CC_INFO 0x11 /* return server's extended info block */
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#define FSP_CC_ERR 0x40 /* error response from server. */
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#define FSP_CC_GET_DIR 0x41 /* get a directory listing. */
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#define FSP_CC_GET_FILE 0x42 /* get a file. */
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#define FSP_CC_UP_LOAD 0x43 /* open a file for writing. */
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#define FSP_CC_INSTALL 0x44 /* close a file opened for writing. */
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#define FSP_CC_DEL_FILE 0x45 /* delete a file. */
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#define FSP_CC_DEL_DIR 0x46 /* delete a directory. */
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#define FSP_CC_GET_PRO 0x47 /* get directory protection. */
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#define FSP_CC_SET_PRO 0x48 /* set directory protection. */
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#define FSP_CC_MAKE_DIR 0x49 /* create a directory. */
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#define FSP_CC_BYE 0x4A /* finish a session. */
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#define FSP_CC_GRAB_FILE 0x4B /* atomic get+delete a file. */
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#define FSP_CC_GRAB_DONE 0x4C /* atomic get+delete a file done. */
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#define FSP_CC_STAT 0x4D /* get information about file. */
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#define FSP_CC_RENAME 0x4E /* rename file or directory. */
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#define FSP_CC_CH_PASSWD 0x4F /* change password */
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#define FSP_CC_LIMIT 0x80 /* # > 0x7f for future cntrl blk ext. */
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#define FSP_CC_TEST 0x81 /* reserved for testing */
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/* FSP v2 packet size */
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#define FSP_HSIZE 12 /* 12 bytes for v2 header */
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#define FSP_SPACE 1024 /* maximum payload. */
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#define FSP_MAXPACKET FSP_HSIZE+FSP_SPACE /* maximum packet size. */
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/* byte offsets of fields in the FSP v2 header */
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#define FSP_OFFSET_CMD 0
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#define FSP_OFFSET_SUM 1
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#define FSP_OFFSET_KEY 2
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#define FSP_OFFSET_SEQ 4
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#define FSP_OFFSET_LEN 6
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#define FSP_OFFSET_POS 8
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/* types of directory entry */
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#define FSP_RDTYPE_END 0x00
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#define FSP_RDTYPE_FILE 0x01
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#define FSP_RDTYPE_DIR 0x02
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#define FSP_RDTYPE_LINK 0x03
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#define FSP_RDTYPE_SKIP 0x2A
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/* definition of directory bitfield for directory information */
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/* directory information is just going to be a bitfield encoding
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* of which protection bits are set/unset
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*/
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#define FSP_PRO_BYTES 1 /* currently only 8 bits or less of info */
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#define FSP_DIR_OWNER 0x01 /* does caller own directory */
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#define FSP_DIR_DEL 0x02 /* can files be deleted from this dir */
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#define FSP_DIR_ADD 0x04 /* can files be added to this dir */
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#define FSP_DIR_MKDIR 0x08 /* can new subdirectories be created */
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#define FSP_DIR_GET 0x10 /* are files readable by non-owners? */
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#define FSP_DIR_README 0x20 /* does this dir contain an readme file? */
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#define FSP_DIR_LIST 0x40 /* public can list directory */
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#define FSP_DIR_RENAME 0x80 /* can files be renamed in this dir */
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/* decoded FSP packet */
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typedef struct FSP_PKT {
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unsigned char cmd; /* message code. */
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unsigned char sum; /* message checksum. */
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unsigned short key; /* message key. */
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unsigned short seq; /* message sequence number. */
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unsigned short len; /* number of bytes in buf 1. */
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unsigned int pos; /* location in the file. */ unsigned short xlen; /* number of bytes in buf 2 */
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unsigned char buf[FSP_SPACE]; /* packet payload */
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} FSP_PKT;
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/* FSP host:port */
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typedef struct FSP_SESSION {
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void * lock; /* key locking */
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unsigned int timeout; /* send timeout 1/1000s*/
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unsigned int maxdelay; /* maximum recv. delay */
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unsigned short seq; /* sequence number */
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unsigned int dupes; /* total pkt. dupes */
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unsigned int resends; /* total pkt. sends */
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unsigned int trips; /* total pkt trips */
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unsigned long rtts; /* cumul. rtt */
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unsigned int last_rtt; /* last rtt */
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unsigned int last_delay; /* last delay time */
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unsigned int last_dupes; /* last dupes */
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unsigned int last_resends;/* last resends */
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int fd; /* i/o descriptor */
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char *password; /* host acccess password */
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} FSP_SESSION;
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/* fsp directory handle */
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typedef struct FSP_DIR {
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char *dirname; /* directory name */
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short inuse; /* in use counter */
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int dirpos; /* current directory pos. */
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unsigned short blocksize; /* size of directory block */
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unsigned char *data; /* raw directory data */
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unsigned int datasize; /* size of raw dir. data */
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} FSP_DIR;
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/* fsp directory entry */
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typedef struct FSP_RDENTRY {
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char name[255 + 1]; /* entry name */
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unsigned short namlen; /* length */
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unsigned char type; /* field type */
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unsigned short reclen; /* directory record length */
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unsigned int size;
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unsigned int lastmod;
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} FSP_RDENTRY;
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/* fsp file handle */
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typedef struct FSP_FILE {
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FSP_PKT in,out; /* io packets */
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FSP_SESSION *s; /* master session */
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char *name; /* filename for upload */
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unsigned char writing; /* opened for writing */
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unsigned char eof; /* EOF reached? */
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unsigned char err; /* i/o error? */
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int bufpos; /* position in buffer */
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unsigned int pos; /* position of next packet */
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} FSP_FILE;
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#if 0
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typedef union dirent_workaround {
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struct dirent dirent;
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char fill[offsetof (struct dirent, d_name) + MAXNAMLEN + 1];
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} dirent_workaround;
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#endif
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#endif
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