/* * This file forms part of PFS2 (Professional File System 2) * Written by Michiel Pelt * Copyright 1998 by Great Effects Development. * * PFS2 header file * $Id: pfs2.h 1.4 1998/09/29 15:37:43 Michiel Exp Michiel $ */ #ifndef _PFS_H #define _PFS_H 1 /****************************************************************************/ /* PFS specific actions (packets) */ /****************************************************************************/ #define ACTION_SLEEP 2200 #define ACTION_UPDATE_ANODE 2201 #define ACTION_PFS_INFO 2202 #define ACTION_PFS_CONFIG 2203 #define ACTION_REMOVE_DIRENTRY 2204 #define ACTION_CREATE_ROLLOVER 2205 #define ACTION_SET_ROLLOVER 2206 #define ACTION_ID_PFS2 2211 #define ACTION_ADD_IDLE_SIGNAL 2220 /****************************************************************************/ /* PFS2 blocks */ /****************************************************************************/ typedef struct bootblock { LONG disktype; /* PFS\1 */ UBYTE not_used[508]; } bootblock_t; typedef struct rootblock { LONG disktype; ULONG options; /* bit 0 is harddisk mode */ ULONG datestamp; UWORD creationday; /* days since Jan. 1, 1978 (like ADOS; WORD instead of LONG) */ UWORD creationminute; /* minutes past modnight */ UWORD creationtick; /* ticks past minute */ UWORD protection; /* protection bits (ala ADOS) */ UBYTE diskname[32]; /* disk label (pascal string) */ ULONG lastreserved; /* reserved area. blocknumbers */ ULONG firstreserved; ULONG reserved_free; /* number of reserved blocks (blksize blocks) free */ UWORD blksize; /* size of reserved blocks in bytes */ UWORD rblkcluster; /* number of blocks in rootblock, including bitmap */ ULONG blocksfree; /* blocks free */ ULONG alwaysfree; /* minimum number of blocks free */ ULONG roving_ptr; /* current LONG bitmapfield nr for allocation */ ULONG deldir; /* deldir location */ ULONG disksize; /* disksize in sectors */ ULONG extension; /* rootblock extension (16.4) */ ULONG not_used_2; union { struct { ULONG bitmapindex[5]; /* 5 bitmap indexblocks */ ULONG indexblocks[99]; /* 99 indexblocks */ } small; struct { ULONG bitmapindex[104]; /* 104 bitmap indexblock */ } large; } idx; } rootblock_t; typedef struct rootblockextension { UWORD id; /* id ('EX') */ UWORD not_used_1; ULONG ext_options; ULONG datestamp; ULONG afsversion; /* afs format revision */ UWORD root_date[3]; /* root directory datestamp */ UWORD volume_date[3]; /* volume datestamp */ ULONG postponed_op[4]; /* postponed operation (private) */ ULONG reserved_roving; /* reserved roving pointer */ UWORD rovingbit; /* bitnr in rootblock->roving_ptr field */ UWORD curranseqnr; /* anode allocation roving pointer */ ULONG superindex[64]; /* MODE_SUPERINDEX only */ ULONG not_used_2[176]; } extensionblock_t; /* structure for both normal as reserved bitmap * normal: normal clustersize * reserved: directly behind rootblock. As long as necessary. */ typedef struct bitmapblock { UWORD id; /* 'BM' (bitmap block) */ UWORD not_used; ULONG datestamp; ULONG seqnr; ULONG bitmap[253]; /* the bitmap. */ } bitmapblock_t; typedef struct indexblock { UWORD id; /* 'AI', 'BI', or 'SB' */ UWORD not_used; ULONG datestamp; ULONG seqnr; LONG index[253]; /* the indices */ } indexblock_t; typedef struct anode { ULONG clustersize; ULONG blocknr; ULONG next; } anode_t; typedef struct anodeblock { UWORD id; /* 'AB' */ UWORD not_used; ULONG datestamp; ULONG seqnr; ULONG not_used_2; struct anode nodes[84]; } anodeblock_t; typedef struct dirblock { UWORD id; /* 'DB' */ UWORD not_used; ULONG datestamp; UWORD not_used_2[2]; ULONG anodenr; /* anodenr belonging to this directory (points to FIRST block of dir) */ ULONG parent; /* parent */ UBYTE entries[0]; /* entries */ } dirblock_t; struct direntry { UBYTE next; /* sizeof direntry */ BYTE type; /* dir, file, link etc */ ULONG anode; /* anode nummer */ ULONG size; /* sizeof file */ UWORD creationday; /* days since Jan. 1, 1978 (like ADOS; WORD instead of LONG) */ UWORD creationminute; /* minutes past modnight */ UWORD creationtick; /* ticks past minute */ UBYTE protection; /* protection bits (like DOS) */ UBYTE nlength; /* lenght of filename */ UBYTE startofname; /* filename, followed by filenote length & filenote */ UBYTE pad; /* make size even */ }; struct extrafields { ULONG link; /* link anodenr */ UWORD uid; /* user id */ UWORD gid; /* group id */ ULONG prot; /* byte 1-3 of protection */ ULONG virtualsize; /* virtual rollover filesize */ ULONG rollpointer; /* rollover fileoffset */ }; struct deldirentry { ULONG anodenr; /* anodenr */ ULONG size; /* size of file */ UWORD creationday; /* datestamp */ UWORD creationminute; UWORD creationtick; UBYTE filename[18]; /* filename; filling up to 32 chars */ }; typedef struct deldirblock { UWORD id; /* 'DD' */ UWORD not_used; ULONG datestamp; UWORD not_used_2[4]; UWORD roving; /* current delete position */ UWORD uid; /* user id */ UWORD gid; /* group id */ ULONG protection; UWORD creationday; UWORD creationminute; UWORD creationtick; struct deldirentry entries[0]; /* 31 entries */ } deldirblock_t; union reservedblock { UWORD id; anodeblock_t anodeblock; bitmapblock_t btmapblock; bootblock_t bootblock; dirblock_t dirblock; deldirblock_t deldirblock; indexblock_t indexblock; rootblock_t rootblock; extensionblock_t extensionblock; }; typedef union reservedblock reservedblock_t; /* limits */ #define MAXSMALLBITMAPINDEX 4 #define MAXBITMAPINDEX 103 #define MAXNUMRESERVED 85920 #define MAXSUPER 63 #define MAXSMALLINDEXNR 98 #define MAXDELENTRYNR 30 /* maximum disksize in blocks, limited by number of bitmapindexblocks */ #define MAXSMALLDISK (5*253*253*32) #define MAXDISKSIZE (104*253*253*32) /* disk id 'PFS\1' */ #define ID_PFS_DISK (0x50465301L) /* 'PFS\1' */ #define ID_PFS2_DISK (0x50465302L) /* 'PFS\2' */ #define ID_MUPFS_DISK (0x6d755046L) /* 'muPF' */ #define ID_AFS_DISK (0x41465301L) /* 'AFS\1' */ /* block id's */ #define DBLKID 0x4442 #define ABLKID 0x4142 #define IBLKID 0x4942 #define BMBLKID 0x424D #define BMIBLKID 0x4D49 #define DELDIRID 0x4444 #define EXTENSIONID 0x4558 #define SBLKID 0x5342 #define SIZEOF_RESBLOCK 1024 /* predefined anodes */ #define ANODE_EOF 0 #define ANODE_BADBLOCKS 4 #define ANODE_ROOTDIR 5 #define ANODE_USERFIRST 6 /* disk options */ #define MODE_HARDDISK 1 #define MODE_SPLITTED_ANODES 2 #define MODE_DIR_EXTENSION 4 #define MODE_DELDIR 8 #define MODE_SIZEFIELD 16 #define MODE_EXTENSION 32 #define MODE_DATESTAMP 64 #define MODE_SUPERINDEX 128 #define MODE_MASK 0xff /* seperator used for deldirentries */ #define DELENTRY_SEP '@' /* rollover filetype */ #define ST_ROLLOVERFILE -16 /* get filenote from directory entry */ #define FILENOTE(de) ((UBYTE*)(&((de)->startofname) + (de)->nlength)) /* get next directory entry */ #define NEXTENTRY(de) ((struct direntry*)((UBYTE*)(de) + (de)->next)) #endif /* PFS_H */