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filesys.cpp
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filesys.cpp
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/*
* UAE - The Un*x Amiga Emulator
*
* Unix file system handler for AmigaDOS
*
* Copyright 1996 Ed Hanway
* Copyright 1996, 1997 Bernd Schmidt
*
* Version 0.4: 970308
*
* Based on example code (c) 1988 The Software Distillery
* and published in Transactor for the Amiga, Volume 2, Issues 2-5.
* (May - August 1989)
*
* Known limitations:
* Does not support several (useless) 2.0+ packet types.
* May not return the correct error code in some cases.
* Does not check for sane values passed by AmigaDOS. May crash the emulation
* if passed garbage values.
* Could do tighter checks on malloc return values.
* Will probably fail spectacularly in some cases if the filesystem is
* modified at the same time by another process while UAE is running.
*/
#include "sysconfig.h"
#include "sysdeps.h"
#include "threaddep/thread.h"
#include "options.h"
#include "traps.h"
#include "uae.h"
#include "memory.h"
#include "custom.h"
#include "events.h"
#include "newcpu.h"
#include "filesys.h"
#include "autoconf.h"
#include "fsusage.h"
#include "native2amiga.h"
#include "scsidev.h"
#include "uaeserial.h"
#include "fsdb.h"
#include "zfile.h"
#include "zarchive.h"
#include "gui.h"
#include "gayle.h"
#include "idecontrollers.h"
#include "savestate.h"
#include "a2091.h"
#include "ncr_scsi.h"
#include "cdtv.h"
#include "sana2.h"
#include "bsdsocket.h"
#include "uaeresource.h"
#include "inputdevice.h"
#include "clipboard.h"
#include "consolehook.h"
#include "blkdev.h"
#include "isofs_api.h"
#include "scsi.h"
#ifdef WITH_UAENATIVE
#include "uaenative.h"
#endif
#include "tabletlibrary.h"
#include "cia.h"
#include "picasso96.h"
#include "cpuboard.h"
#include "rommgr.h"
#include "debug.h"
#include "debugmem.h"
#ifdef RETROPLATFORM
#include "rp.h"
#endif
#define TRACING_ENABLED 1
int log_filesys = 0;
#define TRAPMD 1
#if TRACING_ENABLED
#if 0
#define TRACE(x) if (log_filesys > 0 && (unit->volflags & MYVOLUMEINFO_CDFS)) { write_log x; }
#else
#define TRACE(x) if (log_filesys > 0) { write_log x; }
#endif
#define TRACEI(x) if (log_filesys > 0) { write_log x; }
#define TRACE2(x) if (log_filesys >= 2) { write_log x; }
#define TRACE3(x) if (log_filesys >= 3) { write_log x; }
#define DUMPLOCK(c,u,x) dumplock(c,u,x)
#else
#define TRACE(x)
#define DUMPLOCK(c,u,x)
#define TRACE2(x)
#define TRACE3(x)
#endif
#define KS12_BOOT_HACK 1
#define UNIT_LED(unit) ((unit)->ui.unit_type == UNIT_CDFS ? LED_CD : LED_HD)
#define SE2_MIN_FILE_LENGTH 32
struct ShellExecute2
{
uae_u32 size;
char *file, *parms, *currentdir;
char *fileparms;
uae_u32 stack;
uae_s32 priority;
uae_u32 flags;
uae_u32 id;
uae_u32 binsize;
uae_u8 *bin;
char *tmpout;
uaecptr aoutbuf;
char *binname;
int aoutlen;
uaecptr process;
uaecptr buffer;
uae_u32 exitcode;
shellexecute2_callback cb;
char *outbuf;
int outlen;
void *userdata;
int state;
};
#define SHELLEXEC_MAX 16
static struct ShellExecute2 shellexecute2[SHELLEXEC_MAX];
static volatile int shellexecute2_queued;
static uae_u32 filesys_shellexecute2_process(int mode, TrapContext *ctx);
static void filesys_shellexecute2_run_queue(void);
static void shellexecute2_free(struct ShellExecute2 *se2);
static int bootrom_header;
static uae_u32 dlg (uae_u32 a)
{
return (dbg (a + 0) << 24) | (dbg (a + 1) << 16) | (dbg (a + 2) << 8) | (dbg (a + 3) << 0);
}
static void aino_test (a_inode *aino)
{
#ifdef AINO_DEBUG
a_inode *aino2 = aino, *aino3;
for (;;) {
if (!aino || !aino->next)
return;
if ((aino->checksum1 ^ aino->checksum2) != 0xaaaa5555) {
write_log (_T("PANIC: corrupted or freed but used aino detected!"), aino);
}
aino3 = aino;
aino = aino->next;
if (aino->prev != aino3) {
write_log (_T("PANIC: corrupted aino linking!\n"));
break;
}
if (aino == aino2) break;
}
#endif
}
static void aino_test_init (a_inode *aino)
{
#ifdef AINO_DEBUG
aino->checksum1 = (uae_u32)aino;
aino->checksum2 = aino->checksum1 ^ 0xaaaa5555;
#endif
}
#define UAEFS_VERSION "UAE fs 0.6"
uaecptr filesys_initcode, filesys_initcode_ptr, filesys_initcode_real;
static uaecptr bootrom_start;
static uae_u32 fsdevname, fshandlername, filesys_configdev;
static uae_u32 cdfs_devname, cdfs_handlername;
static uaecptr afterdos_name, afterdos_id, afterdos_initcode;
static uaecptr keymaphook_name, keymaphook_id, keymaphook_initcode;
static uaecptr shell_execute_data, shell_execute_process;
static int filesys_in_interrupt;
static uae_u32 mountertask;
static int automountunit = -1;
static int autocreatedunit;
static int cd_unit_offset, cd_unit_number;
static uaecptr ROM_filesys_doio, ROM_filesys_doio_original;
static uaecptr ROM_filesys_putmsg, ROM_filesys_putmsg_original;
static uaecptr ROM_filesys_putmsg_return;
static uaecptr ROM_filesys_hack_remove;
static smp_comm_pipe shellexecute_pipe;
static uae_u32 segtrack_mode = 0;
static bool gayle_ide_in_use;
#define FS_STARTUP 0
#define FS_GO_DOWN 1
#define DEVNAMES_PER_HDF 32
#define UNIT_FILESYSTEM 0
#define UNIT_CDFS 1
typedef struct {
int unit_type;
int open; // >0 start as filesystem, <0 = allocated but do not start
TCHAR *devname; /* device name, e.g. UAE0: */
uaecptr devname_amiga;
uaecptr startup;
uaecptr devicenode;
uaecptr parmpacket;
TCHAR *volname; /* volume name, e.g. CDROM, WORK, etc. */
int volflags; /* volume flags, readonly, stream uaefsdb support */
TCHAR *rootdir; /* root native directory/hdf. empty drive if invalid path */
TCHAR *rootdirdiff; /* "diff" file/directory */
bool readonly; /* disallow write access? */
bool locked; /* action write protect */
bool unknown_media; /* ID_UNREADABLE_DISK */
int bootpri; /* boot priority. -128 = no autoboot, -129 = no mount */
int devno;
bool wasisempty; /* if true, this unit was created empty */
int canremove; /* if >0, this unit can be safely ejected and remounted */
bool configureddrive; /* if true, this is drive that was manually configured */
bool inject_icons; /* inject icons if directory filesystem */
struct hardfiledata hf;
struct zvolume *zarchive;
/* Threading stuff */
smp_comm_pipe *volatile unit_pipe, *volatile back_pipe;
uae_thread_id tid;
struct _unit *self;
/* Reset handling */
uae_sem_t reset_sync_sem;
volatile int reset_state;
/* RDB stuff */
uaecptr rdb_devname_amiga[DEVNAMES_PER_HDF];
int rdb_lowcyl;
int rdb_highcyl;
int rdb_cylblocks;
uae_u8 *rdb_filesysstore;
int rdb_filesyssize;
TCHAR *filesysdir;
/* filesystem seglist */
uaecptr filesysseg;
uae_u32 rdb_dostype;
/* CDFS */
bool cd_open;
int cddevno;
void *cdfs_superblock;
} UnitInfo;
struct uaedev_mount_info {
UnitInfo ui[MAX_FILESYSTEM_UNITS];
};
static struct uaedev_mount_info mountinfo;
/* minimal AmigaDOS definitions */
/* field offsets in DosPacket */
#define dp_Type 8
#define dp_Res1 12
#define dp_Res2 16
#define dp_Arg1 20
#define dp_Arg2 24
#define dp_Arg3 28
#define dp_Arg4 32
#define dp_Arg5 36
#define DP64_INIT -3L
#define dp64_Type 8
#define dp64_Res0 12
#define dp64_Res2 16
#define dp64_Res1 24
#define dp64_Arg1 32
#define dp64_Arg2 40
#define dp64_Arg3 48
#define dp64_Arg4 52
#define dp64_Arg5 56
#define dp_Max 60
/* result codes */
#define DOS_TRUE ((uae_u32)-1L)
#define DOS_FALSE (0L)
/* DirEntryTypes */
#define ST_PIPEFILE -5
#define ST_LINKFILE -4
#define ST_FILE -3
#define ST_ROOT 1
#define ST_USERDIR 2
#define ST_SOFTLINK 3
#define ST_LINKDIR 4
#if 1
#define MAXFILESIZE32 (0xffffffff)
#else
/* technically correct but most native
* filesystems don't enforce it
*/
#define MAXFILESIZE32 (0x7fffffff)
#endif
#define MAXFILESIZE32_2G (0x7fffffff)
/* Passed as type to Lock() */
#define SHARED_LOCK -2 /* File is readable by others */
#define ACCESS_READ -2 /* Synonym */
#define EXCLUSIVE_LOCK -1 /* No other access allowed */
#define ACCESS_WRITE -1 /* Synonym */
/* packet types */
#define ACTION_CURRENT_VOLUME 7
#define ACTION_LOCATE_OBJECT 8
#define ACTION_RENAME_DISK 9
#define ACTION_FREE_LOCK 15
#define ACTION_DELETE_OBJECT 16
#define ACTION_RENAME_OBJECT 17
#define ACTION_MORE_CACHE 18
#define ACTION_COPY_DIR 19
#define ACTION_SET_PROTECT 21
#define ACTION_CREATE_DIR 22
#define ACTION_EXAMINE_OBJECT 23
#define ACTION_EXAMINE_NEXT 24
#define ACTION_DISK_INFO 25
#define ACTION_INFO 26
#define ACTION_FLUSH 27
#define ACTION_SET_COMMENT 28
#define ACTION_PARENT 29
#define ACTION_SET_DATE 34
#define ACTION_FIND_WRITE 1004
#define ACTION_FIND_INPUT 1005
#define ACTION_FIND_OUTPUT 1006
#define ACTION_END 1007
#define ACTION_SEEK 1008
#define ACTION_WRITE_PROTECT 1023
#define ACTION_IS_FILESYSTEM 1027
#define ACTION_READ 'R'
#define ACTION_WRITE 'W'
/* 2.0+ packet types */
#define ACTION_INHIBIT 31
#define ACTION_SET_FILE_SIZE 1022
#define ACTION_LOCK_RECORD 2008
#define ACTION_FREE_RECORD 2009
#define ACTION_SAME_LOCK 40
#define ACTION_CHANGE_MODE 1028
#define ACTION_FH_FROM_LOCK 1026
#define ACTION_COPY_DIR_FH 1030
#define ACTION_PARENT_FH 1031
#define ACTION_EXAMINE_ALL 1033
#define ACTION_EXAMINE_FH 1034
#define ACTION_EXAMINE_ALL_END 1035
#define ACTION_FORMAT 1020
#define ACTION_IS_FILESYSTEM 1027
#define ACTION_ADD_NOTIFY 4097
#define ACTION_REMOVE_NOTIFY 4098
#define ACTION_READ_LINK 1024
/* OS4 64-bit filesize packets */
#define ACTION_FILESYSTEM_ATTR 3005
#define ACTION_CHANGE_FILE_POSITION64 8001
#define ACTION_GET_FILE_POSITION64 8002
#define ACTION_CHANGE_FILE_SIZE64 8003
#define ACTION_GET_FILE_SIZE64 8004
/* MOS 64-bit filesize packets */
#define ACTION_SEEK64 26400
#define ACTION_SET_FILE_SIZE64 26401
#define ACTION_LOCK_RECORD64 26402
#define ACTION_FREE_RECORD64 26403
#define ACTION_QUERY_ATTR 26407
#define ACTION_EXAMINE_OBJECT64 26408
#define ACTION_EXAMINE_NEXT64 26409
#define ACTION_EXAMINE_FH64 26410
/* not supported */
#define ACTION_MAKE_LINK 1021
#define DISK_TYPE_DOS 0x444f5300 /* DOS\0 */
#define DISK_TYPE_DOS_FFS 0x444f5301 /* DOS\1 */
#define CDFS_DOSTYPE 0x43440000 /* CDxx */
typedef struct _dpacket {
uaecptr packet_addr;
uae_u8 *packet_data;
uae_u8 packet_array[dp_Max];
bool need_flush;
} dpacket;
typedef struct {
uae_u32 uniq;
/* The directory we're going through. */
a_inode *aino;
/* The file we're going to look up next. */
a_inode *curr_file;
} ExamineKey;
struct lockrecord
{
struct lockrecord *next;
dpacket *packet;
uae_u64 pos;
uae_u64 len;
uae_u32 mode;
uae_u32 timeout;
uae_u32 msg;
};
typedef struct key {
struct key *next;
a_inode *aino;
uae_u32 uniq;
struct fs_filehandle *fd;
uae_u64 file_pos;
int dosmode;
int createmode;
int notifyactive;
struct lockrecord *record;
} Key;
typedef struct notify {
struct notify *next;
uaecptr notifyrequest;
TCHAR *fullname;
TCHAR *partname;
} Notify;
typedef struct exallkey {
uae_u32 id;
struct fs_dirhandle *dirhandle;
TCHAR *fn;
uaecptr control;
} ExAllKey;
/* Since ACTION_EXAMINE_NEXT is so braindamaged, we have to keep
* some of these around
*/
#define EXKEYS 128
#define EXALLKEYS 100
#define MAX_AINO_HASH 128
#define NOTIFY_HASH_SIZE 127
/* handler state info */
typedef struct _unit {
struct _unit *next;
/* Amiga stuff */
uaecptr dosbase;
/* volume points to our IO board, always 1:1 mapping */
uaecptr volume;
uaecptr port; /* Our port */
uaecptr locklist;
/* Native stuff */
uae_s32 unit; /* unit number */
UnitInfo ui; /* unit startup info */
TCHAR tmpbuf3[256];
/* Dummy message processing */
uaecptr dummy_message;
volatile unsigned int cmds_sent;
volatile unsigned int cmds_complete;
volatile unsigned int cmds_acked;
/* ExKeys */
ExamineKey examine_keys[EXKEYS];
int next_exkey;
unsigned int total_locked_ainos;
/* ExAll */
ExAllKey exalls[EXALLKEYS];
int exallid;
/* Keys */
struct key *keys;
struct lockrecord *waitingrecords;
a_inode rootnode;
unsigned int aino_cache_size;
a_inode *aino_hash[MAX_AINO_HASH];
unsigned int nr_cache_hits;
unsigned int nr_cache_lookups;
struct notify *notifyhash[NOTIFY_HASH_SIZE];
int volflags;
uae_u32 lockkey;
bool inhibited;
bool canremovable;
/* increase when media is changed.
* used to detect if cached aino is valid
*/
int mountcount;
int mount_changed;
void *cdfs_superblock;
TCHAR *mount_volume;
TCHAR *mount_rootdir;
bool mount_readonly;
int mount_flags;
int reinsertdelay;
TCHAR *newvolume;
TCHAR *newrootdir;
bool newreadonly;
int newflags;
} Unit;
int nr_units (void)
{
int cnt = 0;
for (int i = 0; i < MAX_FILESYSTEM_UNITS; i++) {
if (mountinfo.ui[i].open > 0)
cnt++;
}
return cnt;
}
int nr_directory_units (struct uae_prefs *p)
{
int cnt = 0;
if (p) {
for (int i = 0; i < p->mountitems; i++) {
if (p->mountconfig[i].ci.controller_type == HD_CONTROLLER_TYPE_UAE)
cnt++;
}
} else {
for (int i = 0; i < MAX_FILESYSTEM_UNITS; i++) {
if (mountinfo.ui[i].open > 0 && mountinfo.ui[i].hf.ci.controller_type == HD_CONTROLLER_TYPE_UAE)
cnt++;
}
}
return cnt;
}
static int is_virtual (int unit_no)
{
int t = is_hardfile (unit_no);
return t == FILESYS_VIRTUAL || t == FILESYS_CD;
}
int is_hardfile (int unit_no)
{
if (mountinfo.ui[unit_no].volname || mountinfo.ui[unit_no].wasisempty || mountinfo.ui[unit_no].unknown_media) {
if (unit_no >= cd_unit_offset && unit_no < cd_unit_offset + cd_unit_number)
return FILESYS_CD;
return FILESYS_VIRTUAL;
}
if (mountinfo.ui[unit_no].hf.ci.sectors == 0) {
if (mountinfo.ui[unit_no].hf.flags & 1)
return FILESYS_HARDDRIVE;
return FILESYS_HARDFILE_RDB;
}
return FILESYS_HARDFILE;
}
static void close_filesys_unit (UnitInfo *uip)
{
if (!uip->open)
return;
if (uip->hf.handle_valid)
hdf_close (&uip->hf);
if (uip->volname != 0)
xfree (uip->volname);
if (uip->devname != 0)
xfree (uip->devname);
if (uip->rootdir != 0)
xfree (uip->rootdir);
if (uip->unit_pipe)
xfree (uip->unit_pipe);
if (uip->back_pipe)
xfree (uip->back_pipe);
if (uip->cd_open) {
sys_command_close (uip->cddevno);
isofs_unmount (uip->cdfs_superblock);
}
uip->unit_pipe = 0;
uip->back_pipe = 0;
uip->hf.handle_valid = 0;
uip->volname = 0;
uip->devname = 0;
uip->rootdir = 0;
uip->open = 0;
uip->cd_open = 0;
}
static uaedev_config_data *getuci (struct uaedev_config_data *uci, int nr)
{
return &uci[nr];
}
static UnitInfo *getuip (struct uae_prefs *p, int index)
{
if (index < 0)
return NULL;
index = p->mountconfig[index].configoffset;
if (index < 0)
return NULL;
return &mountinfo.ui[index];
}
static int getuindex (struct uae_prefs *p, int index)
{
if (index < 0)
return -1;
return p->mountconfig[index].unitnum;
}
int get_filesys_unitconfig (struct uae_prefs *p, int index, struct mountedinfo *mi)
{
UnitInfo *ui = getuip (p, index);
struct uaedev_config_data *uci = &p->mountconfig[index];
UnitInfo uitmp;
TCHAR filepath[MAX_DPATH];
memset (mi, 0, sizeof (struct mountedinfo));
memset (&uitmp, 0, sizeof uitmp);
_tcscpy(mi->rootdir, uci->ci.rootdir);
if (!ui) {
ui = &uitmp;
if (uci->ci.type == UAEDEV_DIR) {
cfgfile_resolve_path_out_load(uci->ci.rootdir, filepath, MAX_DPATH, PATH_DIR);
_tcscpy(mi->rootdir, filepath);
mi->ismounted = 1;
if (filepath[0] == 0)
return FILESYS_VIRTUAL;
if (my_existsfile (filepath)) {
mi->ismedia = 1;
return FILESYS_VIRTUAL;
}
if (my_getvolumeinfo (filepath) < 0)
return -1;
mi->ismedia = true;
return FILESYS_VIRTUAL;
} else if (uci->ci.type == UAEDEV_HDF) {
cfgfile_resolve_path_out_load(uci->ci.rootdir, filepath, MAX_DPATH, PATH_HDF);
_tcscpy(mi->rootdir, filepath);
ui->hf.ci.readonly = true;
ui->hf.ci.blocksize = uci->ci.blocksize;
int err = hdf_open (&ui->hf, filepath);
if (err <= 0) {
mi->ismedia = false;
mi->ismounted = true;
mi->error = err;
if (uci->ci.reserved == 0 && uci->ci.sectors == 0 && uci->ci.surfaces == 0) {
if (ui->hf.flags & 1)
return FILESYS_HARDDRIVE;
return FILESYS_HARDFILE_RDB;
}
return -1;
}
mi->ismedia = true;
if (ui->hf.drive_empty)
mi->ismedia = 0;
hdf_close (&ui->hf);
} else if (uci->ci.type == UAEDEV_CD) {
cfgfile_resolve_path_out_load(uci->ci.rootdir, filepath, MAX_DPATH, PATH_CD);
_tcscpy(mi->rootdir, filepath);
struct device_info di;
ui->hf.ci.readonly = true;
ui->hf.ci.blocksize = uci->ci.blocksize;
mi->size = -1;
mi->ismounted = true;
if (blkdev_get_info (p, ui->hf.ci.device_emu_unit, &di)) {
mi->ismedia = di.media_inserted != 0;
_tcscpy (mi->rootdir, di.label);
}
#if 0
if (ui->hf.ci.cd_emu_unit == 0)
_tcscpy (mi->rootdir, _T("CD"));
else
_stprintf (mi->rootdir, _T("CD %d"), ui->hf.ci.cd_emu_unit);
#endif
}
} else if (uci->ci.type != UAEDEV_TAPE) {
if (ui->hf.ci.controller_type == HD_CONTROLLER_TYPE_UAE) { // what is this? || (ui->controller && p->cs_ide)) {
mi->ismounted = 1;
if (uci->ci.type == UAEDEV_HDF)
mi->ismedia = ui->hf.drive_empty ? false : true;
else
mi->ismedia = true;
}
}
if (uci->ci.type == UAEDEV_TAPE) {
cfgfile_resolve_path_out_load(uci->ci.rootdir, filepath, MAX_DPATH, PATH_TAPE);
_tcscpy(mi->rootdir, filepath);
struct device_info di;
int unitnum = getuindex (p, index);
mi->size = -1;
mi->ismounted = false;
if (unitnum >= 0) {
mi->ismounted = true;
if (tape_get_info (unitnum, &di)) {
mi->ismedia = di.media_inserted != 0;
_tcscpy (mi->rootdir, di.label);
}
} else {
struct scsi_data_tape *tape;
unitnum = 0;
tape = tape_alloc (unitnum, filepath, uci->ci.readonly);
if (tape) {
if (tape_get_info (unitnum, &di)) {
mi->ismedia = di.media_inserted != 0;
_tcscpy (mi->rootdir, di.label);
}
tape_free (tape);
}
}
return FILESYS_TAPE;
}
if (mi->size < 0)
return -1;
mi->size = ui->hf.virtsize;
if (uci->ci.highcyl) {
uci->ci.cyls = mi->nrcyls = uci->ci.highcyl;
} else {
uci->ci.cyls = mi->nrcyls = (int)(uci->ci.sectors * uci->ci.surfaces ? (ui->hf.virtsize / uci->ci.blocksize) / (uci->ci.sectors * uci->ci.surfaces) : 0);
}
if (uci->ci.type == UAEDEV_DIR)
return FILESYS_VIRTUAL;
if (uci->ci.reserved == 0 && uci->ci.sectors == 0 && uci->ci.surfaces == 0) {
if (ui->hf.flags & 1)
return FILESYS_HARDDRIVE;
return FILESYS_HARDFILE_RDB;
}
return FILESYS_HARDFILE;
}
static void stripsemicolon (TCHAR *s)
{
if (!s)
return;
while (uaetcslen(s) > 0 && s[uaetcslen(s) - 1] == ':')
s[uaetcslen(s) - 1] = 0;
}
static void stripspace (TCHAR *s)
{
if (!s)
return;
for (int i = 0; i < uaetcslen (s); i++) {
if (s[i] == ' ')
s[i] = '_';
}
}
static void striplength (TCHAR *s, int len)
{
if (!s)
return;
if (uaetcslen (s) <= len)
return;
s[len] = 0;
}
static void fixcharset(TCHAR *s)
{
char tmp[MAX_DPATH];
if (!s)
return;
ua_fs_copy(tmp, MAX_DPATH - 1, s, '_');
au_fs_copy(s, uaestrlen(tmp) + 1, tmp);
}
TCHAR *validatevolumename (TCHAR *s, const TCHAR *def)
{
stripsemicolon (s);
fixcharset (s);
striplength (s, 30);
if (uaetcslen(s) == 0 && def) {
xfree(s);
s = my_strdup(def);
}
return s;
}
TCHAR *validatedevicename (TCHAR *s, const TCHAR *def)
{
stripsemicolon (s);
stripspace (s);
fixcharset (s);
striplength (s, 30);
if (uaetcslen(s) == 0 && def) {
xfree(s);
s = my_strdup(def);
}
return s;
}
TCHAR *filesys_createvolname (const TCHAR *volname, const TCHAR *rootdir, struct zvolume *zv, const TCHAR *def)
{
TCHAR *nvol = NULL;
int i, archivehd;
TCHAR *p = NULL;
TCHAR path[MAX_DPATH];
cfgfile_resolve_path_out_load(rootdir, path, MAX_DPATH, PATH_DIR);
archivehd = -1;
if (my_existsfile (path))
archivehd = 1;
else if (my_existsdir (path))
archivehd = 0;
if (zv && zv->volumename && uaetcslen(zv->volumename) > 0) {
nvol = my_strdup(zv->volumename);
nvol = validatevolumename (nvol, def);
return nvol;
}
if ((!volname || uaetcslen (volname) == 0) && path && archivehd >= 0) {
p = my_strdup (path);
for (i = uaetcslen (p) - 1; i >= 0; i--) {
TCHAR c = p[i];
if (c == ':' || c == '/' || c == '\\') {
if (i == uaetcslen (p) - 1)
continue;
if (!_tcscmp (p + i, _T(":\\"))) {
xfree (p);
p = xmalloc (TCHAR, 10);
p[0] = path[0];
p[1] = 0;
i = 0;
} else {
i++;
}
break;
}
}
if (i >= 0)
nvol = my_strdup (p + i);
}
if (!nvol && archivehd >= 0) {
if (volname && uaetcslen (volname) > 0)
nvol = my_strdup (volname);
else
nvol = my_strdup (def);
}
if (!nvol) {
if (volname && uaetcslen (volname))
nvol = my_strdup (volname);
else
nvol = my_strdup (_T(""));
}
nvol = validatevolumename (nvol, def);
xfree (p);
return nvol;
}
static int set_filesys_volume (const TCHAR *rootdir, int *flags, bool *readonly, bool *emptydrive, struct zvolume **zvp)
{
*emptydrive = 0;
if (my_existsfile (rootdir)) {
struct zvolume *zv;
zv = zfile_fopen_archive (rootdir);
if (!zv) {
error_log (_T("'%s' is not a supported archive file."), rootdir);
return -1;
}
*zvp = zv;
*flags = MYVOLUMEINFO_ARCHIVE;
*readonly = 1;
} else {
*flags = my_getvolumeinfo (rootdir);
if (*flags < 0) {
if (rootdir && rootdir[0])
error_log (_T("directory '%s' not found, mounting as empty drive."), rootdir);
*emptydrive = 1;
*flags = 0;
} else if ((*flags) & MYVOLUMEINFO_READONLY) {
error_log (_T("'%s' set to read-only."), rootdir);
*readonly = 1;
}
}
return 1;
}
void uci_set_defaults (struct uaedev_config_info *uci, bool rdb)
{
memset (uci, 0, sizeof (struct uaedev_config_info));
if (!rdb) {
uci->sectors = 32;
uci->reserved = 2;
uci->surfaces = 1;
}
uci->blocksize = 512;
uci->maxtransfer = 0x7fffffff;
uci->mask = 0xffffffff;
uci->bufmemtype = 1;
uci->buffers = 50;
uci->stacksize = 4000;
uci->bootpri = 0;
uci->priority = 10;
uci->sectorsperblock = 1;
uci->device_emu_unit = -1;
}
static void get_usedblocks(struct fs_usage *fsu, bool fs, int *pblocksize, uae_s64 *pnumblocks, uae_s64 *pinuse, bool reduce)
{
uae_s64 numblocks = 0, inuse;
int blocksize = *pblocksize;
if (fs && currprefs.filesys_limit) {
if (fsu->total > (uae_s64)currprefs.filesys_limit * 1024) {
uae_s64 oldtotal = fsu->total;
fsu->total = currprefs.filesys_limit * 1024;
fsu->avail = ((fsu->avail / 1024) * (fsu->total / 1024)) / (oldtotal / 1024);
fsu->avail *= 1024;
}
}
if (reduce) {
while (blocksize < 32768 || numblocks == 0) {
numblocks = fsu->total / blocksize;
if (numblocks <= 10)
numblocks = 10;
// Value that does not overflow when multiplied by 100 (uses 128 to keep it simple)
if (numblocks < 0x02000000)
break;
blocksize *= 2;
}
}
numblocks = fsu->total / blocksize;
inuse = (numblocks * blocksize - fsu->avail) / blocksize;
if (inuse > numblocks)
inuse = numblocks;
if (pnumblocks)
*pnumblocks = numblocks;
if (pinuse)
*pinuse = inuse;
if (pblocksize)
*pblocksize = blocksize;
}
static bool get_blocks(const TCHAR *rootdir, int unit, int flags, int *pblocksize, uae_s64 *pnumblocks, uae_s64 *pinuse, bool reduce)
{
struct fs_usage fsu;
int ret;
bool fs = false;
int blocksize;
blocksize = 512;
if (flags & MYVOLUMEINFO_ARCHIVE) {
ret = zfile_fs_usage_archive(rootdir, 0, &fsu);
fs = true;
} else {
ret = get_fs_usage(rootdir, 0, &fsu);
fs = true;
}
if (ret)
return false;
get_usedblocks(&fsu, fs, &blocksize, pnumblocks, pinuse, reduce);
if (pblocksize)
*pblocksize = blocksize;
return ret == 0;
}
static int set_filesys_unit_1 (int nr, struct uaedev_config_info *ci, bool custom)
{
UnitInfo *ui;
int i;
bool emptydrive = false;
bool iscd;
struct uaedev_config_info c;
memcpy (&c, ci, sizeof (struct uaedev_config_info));
if (nr < 0) {
for (nr = 0; nr < MAX_FILESYSTEM_UNITS; nr++) {
if (!mountinfo.ui[nr].open)
break;
}
if (nr == MAX_FILESYSTEM_UNITS) {
error_log (_T("No slot allocated for this unit"));
return -1;
}
}
if (ci->controller_type != HD_CONTROLLER_TYPE_UAE || ci->type == UAEDEV_TAPE) {
ui = &mountinfo.ui[nr];
memset (ui, 0, sizeof (UnitInfo));
memcpy (&ui->hf.ci, &c, sizeof (struct uaedev_config_info));
ui->readonly = c.readonly;
ui->unit_type = -1;
ui->open = -1;
return nr;
}
iscd = nr >= cd_unit_offset && nr < cd_unit_offset + cd_unit_number;