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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 "uae.h"
#include "memory.h"
#include "custom.h"
#include "events.h"
#include "newcpu.h"
#include "filesys.h"
#include "autoconf.h"
#include "traps.h"
#include "fsusage.h"
#include "native2amiga.h"
#include "scsidev.h"
#include "uaeserial.h"
#include "fsdb.h"
#include "zfile.h"
#include "gui.h"
#include "gayle.h"
#include "savestate.h"
#include "a2091.h"
#include "cdtv.h"
#include "sana2.h"
#include "bsdsocket.h"
#include "uaeresource.h"
#include "inputdevice.h"
#include "clipboard.h"
#include "consolehook.h"
#define TRACING_ENABLED 0
#define TRACE2(x) do { write_log x; } while(0)
#if TRACING_ENABLED
#define TRACE(x) do { write_log x; } while(0)
#define DUMPLOCK(u,x) dumplock(u,x)
#else
#define TRACE(x)
#define DUMPLOCK(u,x)
#endif
static uae_sem_t test_sem;
int bootrom_header, bootrom_items;
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 (L"PANIC: corrupted or freed but used aino detected!", aino);
}
aino3 = aino;
aino = aino->next;
if (aino->prev != aino3) {
write_log (L"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
}
uaecptr filesys_initcode;
static uae_u32 fsdevname, filesys_configdev;
static int filesys_in_interrupt;
static uae_u32 mountertask;
static int automountunit = -1;
#define FS_STARTUP 0
#define FS_GO_DOWN 1
#define DEVNAMES_PER_HDF 32
typedef struct {
bool open;
TCHAR *devname; /* device name, e.g. UAE0: */
uaecptr devname_amiga;
uaecptr startup;
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 */
struct zvolume *zarchive;
TCHAR *rootdirdiff; /* "diff" file/directory */
bool readonly; /* disallow write access? */
bool locked; /* action write protect */
int bootpri; /* boot priority. -128 = no autoboot, -129 = no mount */
int devno;
int controller;
bool wasisempty; /* if true, this unit was created empty */
bool canremove; /* if true, this unit can be safely ejected and remounted */
bool configureddrive; /* if true, this is drive that was manually configured */
struct hardfiledata hf;
/* 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;
} UnitInfo;
struct uaedev_mount_info {
UnitInfo ui[MAX_FILESYSTEM_UNITS];
};
static struct uaedev_mount_info mountinfo;
int nr_units (void)
{
int i, cnt = 0;
for (i = 0; i < MAX_FILESYSTEM_UNITS; i++) {
if (mountinfo.ui[i].open)
cnt++;
}
return cnt;
}
int nr_directory_units (struct uae_prefs *p)
{
int i, cnt = 0;
if (p) {
for (i = 0; i < p->mountitems; i++) {
if (p->mountconfig[i].controller == 0)
cnt++;
}
} else {
for (i = 0; i < MAX_FILESYSTEM_UNITS; i++) {
if (mountinfo.ui[i].open && mountinfo.ui[i].controller == 0)
cnt++;
}
}
return cnt;
}
int is_hardfile (int unit_no)
{
if (mountinfo.ui[unit_no].volname || mountinfo.ui[unit_no].wasisempty)
return FILESYS_VIRTUAL;
if (mountinfo.ui[unit_no].hf.secspertrack == 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);
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;
}
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];
}
int get_filesys_unitconfig (struct uae_prefs *p, int index, struct mountedinfo *mi)
{
UnitInfo *ui = getuip(p, index);
struct uaedev_config_info *uci = &p->mountconfig[index];
UnitInfo uitmp;
memset (mi, 0, sizeof (struct mountedinfo));
memset (&uitmp, 0, sizeof uitmp);
if (!ui) {
ui = &uitmp;
if (!uci->ishdf) {
mi->ismounted = 1;
if (uci->rootdir && _tcslen(uci->rootdir) == 0)
return FILESYS_VIRTUAL;
if (my_existsfile (uci->rootdir)) {
mi->ismedia = 1;
return FILESYS_VIRTUAL;
}
if (my_getvolumeinfo (uci->rootdir) < 0)
return -1;
mi->ismedia = true;
return FILESYS_VIRTUAL;
} else {
ui->hf.readonly = true;
ui->hf.blocksize = uci->blocksize;
if (!hdf_open (&ui->hf, uci->rootdir)) {
mi->ismedia = false;
mi->ismounted = true;
if (uci->reserved == 0 && uci->sectors == 0 && uci->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 (!ui->controller || (ui->controller && p->cs_ide)) {
mi->ismounted = 1;
if (uci->ishdf)
mi->ismedia = ui->hf.drive_empty ? false : true;
else
mi->ismedia = true;
}
}
mi->size = ui->hf.virtsize;
mi->nrcyls = (int)(uci->sectors * uci->surfaces ? (ui->hf.virtsize / uci->blocksize) / (uci->sectors * uci->surfaces) : 0);
if (!uci->ishdf)
return FILESYS_VIRTUAL;
if (uci->reserved == 0 && uci->sectors == 0 && uci->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 (_tcslen(s) > 0 && s[_tcslen(s) - 1] == ':')
s[_tcslen(s) - 1] = 0;
}
static void stripspace (TCHAR *s)
{
int i;
if (!s)
return;
for (i = 0; i < _tcslen (s); i++) {
if (s[i] == ' ')
s[i] = '_';
}
}
static void striplength (TCHAR *s, int len)
{
if (!s)
return;
if (_tcslen (s) <= len)
return;
s[len] = 0;
}
static void fixcharset (TCHAR *s)
{
char tmp[MAX_DPATH];
if (!s)
return;
ua_fs_copy (tmp, MAX_DPATH, s, '_');
au_fs_copy (s, strlen (tmp) + 1, tmp);
}
TCHAR *validatevolumename (TCHAR *s)
{
stripsemicolon (s);
fixcharset (s);
striplength (s, 30);
return s;
}
TCHAR *validatedevicename (TCHAR *s)
{
stripsemicolon (s);
stripspace (s);
fixcharset (s);
striplength (s, 30);
return s;
}
TCHAR *filesys_createvolname (const TCHAR *volname, const TCHAR *rootdir, const TCHAR *def)
{
TCHAR *nvol = NULL;
int i, archivehd;
TCHAR *p = NULL;
archivehd = -1;
if (my_existsfile (rootdir))
archivehd = 1;
else if (my_existsdir (rootdir))
archivehd = 0;
if ((!volname || _tcslen (volname) == 0) && rootdir && archivehd >= 0) {
p = my_strdup (rootdir);
for (i = _tcslen (p) - 1; i >= 0; i--) {
TCHAR c = p[i];
if (c == ':' || c == '/' || c == '\\') {
if (i == _tcslen (p) - 1)
continue;
if (!_tcscmp (p + i, L":\\")) {
xfree (p);
p = xmalloc (TCHAR, 10);
p[0] = rootdir[0];
p[1] = 0;
i = 0;
} else {
i++;
}
break;
}
}
if (i >= 0)
nvol = my_strdup (p + i);
}
if (!nvol && archivehd >= 0) {
TCHAR *s = NULL;
if (volname && _tcslen (volname) > 0)
nvol = my_strdup (volname);
else
nvol = my_strdup (def);
}
if (!nvol) {
if (volname && _tcslen (volname))
nvol = my_strdup (volname);
else
nvol = my_strdup (L"");
}
validatevolumename (nvol);
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) {
write_log (L"'%s' is not a supported archive file\n", rootdir);
return -1;
}
*zvp = zv;
*flags = MYVOLUMEINFO_ARCHIVE;
*readonly = 1;
} else {
*flags = my_getvolumeinfo (rootdir);
if (*flags < 0) {
if (rootdir && rootdir[0])
write_log (L"directory '%s' not found, mounting as empty drive\n", rootdir);
*emptydrive = 1;
*flags = 0;
} else if ((*flags) & MYVOLUMEINFO_READONLY) {
write_log (L"'%s' set to read-only\n", rootdir);
*readonly = 1;
}
}
return 1;
}
static int set_filesys_unit_1 (int nr,
TCHAR *devname, TCHAR *volname, const TCHAR *rootdir, bool readonly,
int secspertrack, int surfaces, int reserved,
int blocksize, int bootpri, bool donotmount, bool autoboot,
TCHAR *filesysdir, int hdc, int flags)
{
UnitInfo *ui;
int i;
bool emptydrive = false;
if (hdc)
return -1;
if (nr < 0) {
for (nr = 0; nr < MAX_FILESYSTEM_UNITS; nr++) {
if (!mountinfo.ui[nr].open)
break;
}
if (nr == MAX_FILESYSTEM_UNITS) {
write_log (L"No slot allocated for this unit\n");
return -1;
}
}
for (i = 0; i < MAX_FILESYSTEM_UNITS; i++) {
if (nr == i || !mountinfo.ui[i].open)
continue;
if (rootdir && _tcslen (rootdir) > 0 && !_tcsicmp (mountinfo.ui[i].rootdir, rootdir)) {
write_log (L"directory/hardfile '%s' already added\n", rootdir);
return -1;
}
}
ui = &mountinfo.ui[nr];
memset (ui, 0, sizeof (UnitInfo));
if (volname != NULL) {
int flags = 0;
emptydrive = 1;
if (rootdir) {
if (set_filesys_volume (rootdir, &flags, &readonly, &emptydrive, &ui->zarchive) < 0)
return -1;
}
ui->volname = filesys_createvolname (volname, rootdir, L"harddrive");
ui->volflags = flags;
} else {
ui->hf.secspertrack = secspertrack;
ui->hf.surfaces = surfaces;
ui->hf.reservedblocks = reserved;
ui->hf.blocksize = blocksize;
ui->hf.unitnum = nr;
ui->volname = 0;
ui->hf.readonly = readonly;
if (!hdf_open (&ui->hf, rootdir) && !readonly) {
write_log (L"Attempting to open in read-only mode\n");
ui->hf.readonly = readonly = 1;
hdf_open (&ui->hf, rootdir);
}
ui->hf.readonly = readonly;
if (!ui->hf.drive_empty) {
if (ui->hf.handle_valid == 0) {
write_log (L"Hardfile %s not found\n", ui->hf.device_name);
goto err;
}
if ((ui->hf.blocksize & (ui->hf.blocksize - 1)) != 0 || ui->hf.blocksize == 0) {
write_log (L"Hardfile %s bad blocksize\n", ui->hf.device_name);
goto err;
}
if ((ui->hf.secspertrack || ui->hf.surfaces || ui->hf.reservedblocks) &&
(ui->hf.secspertrack < 1 || ui->hf.surfaces < 1 || ui->hf.surfaces > 1023 ||
ui->hf.reservedblocks < 0 || ui->hf.reservedblocks > 1023) != 0) {
write_log (L"Hardfile %s bad hardfile geometry\n", ui->hf.device_name);
goto err;
}
if (ui->hf.blocksize > ui->hf.virtsize || ui->hf.virtsize == 0) {
write_log (L"Hardfile %s too small\n", ui->hf.device_name);
goto err;
}
ui->hf.nrcyls = (int)(ui->hf.secspertrack * ui->hf.surfaces ? (ui->hf.virtsize / ui->hf.blocksize) / (ui->hf.secspertrack * ui->hf.surfaces) : 0);
}
}
ui->self = 0;
ui->reset_state = FS_STARTUP;
ui->wasisempty = emptydrive;
ui->canremove = emptydrive && (flags & MYVOLUMEINFO_REUSABLE);
ui->rootdir = my_strdup (rootdir);
ui->devname = my_strdup (devname);
stripsemicolon(ui->devname);
if (filesysdir && filesysdir[0])
ui->filesysdir = my_strdup (filesysdir);
ui->readonly = readonly;
if (!autoboot)
bootpri = -128;
if (donotmount)
bootpri = -129;
if (bootpri < -129)
bootpri = -129;
if (bootpri > 127)
bootpri = 127;
ui->bootpri = bootpri;
ui->open = 1;
return nr;
err:
if (ui->hf.handle_valid)
hdf_close (&ui->hf);
return -1;
}
static int set_filesys_unit (int nr,
TCHAR *devname, TCHAR *volname, const TCHAR *rootdir, bool readonly,
int secspertrack, int surfaces, int reserved,
int blocksize, int bootpri, bool donotmount, bool autoboot,
TCHAR *filesysdir, int hdc, int flags)
{
int ret;
ret = set_filesys_unit_1 (nr, devname, volname, rootdir, readonly,
secspertrack, surfaces, reserved, blocksize, bootpri, donotmount, autoboot,
filesysdir, hdc, flags);
return ret;
}
static int add_filesys_unit (TCHAR *devname, TCHAR *volname, const TCHAR *rootdir, bool readonly,
int secspertrack, int surfaces, int reserved,
int blocksize, int bootpri, bool donotmount, bool autoboot,
TCHAR *filesysdir, int hdc, int flags)
{
int ret;
if (nr_units() >= MAX_FILESYSTEM_UNITS)
return -1;
ret = set_filesys_unit_1 (-1, devname, volname, rootdir, readonly,
secspertrack, surfaces, reserved, blocksize,
bootpri, donotmount, autoboot, filesysdir, hdc, flags);
return ret;
}
int kill_filesys_unitconfig (struct uae_prefs *p, int nr)
{
struct uaedev_config_info *uci;
if (nr < 0)
return 0;
uci = &p->mountconfig[nr];
hardfile_do_disk_change (uci, 0);
if (uci->configoffset >= 0 && uci->controller == 0)
filesys_media_change (uci->rootdir, 0, uci);
while (nr < MOUNT_CONFIG_SIZE) {
memmove (&p->mountconfig[nr], &p->mountconfig[nr + 1], sizeof (struct uaedev_config_info));
nr++;
}
p->mountitems--;
memset (&p->mountconfig[MOUNT_CONFIG_SIZE - 1], 0, sizeof (struct uaedev_config_info));
return 1;
}
int move_filesys_unitconfig (struct uae_prefs *p, int nr, int to)
{
struct uaedev_config_info *uci1, *uci2, tmpuci;
uci1 = &p->mountconfig[nr];
uci2 = &p->mountconfig[to];
if (nr == to)
return 0;
memcpy (&tmpuci, uci1, sizeof (struct uaedev_config_info));
memcpy (uci1, uci2, sizeof (struct uaedev_config_info));
memcpy (uci2, &tmpuci, sizeof (struct uaedev_config_info));
return 1;
}
static void filesys_addexternals (void);
static void initialize_mountinfo (void)
{
int i;
struct uaedev_config_info *uci;
UnitInfo *uip = &mountinfo.ui[0];
for (i = 0; i < currprefs.mountitems; i++) {
int idx;
uci = &currprefs.mountconfig[i];
if (uci->controller == HD_CONTROLLER_UAE) {
idx = set_filesys_unit_1 (-1, uci->devname, uci->ishdf ? NULL : uci->volname, uci->rootdir,
uci->readonly, uci->sectors, uci->surfaces, uci->reserved,
uci->blocksize, uci->bootpri, uci->donotmount, uci->autoboot, uci->filesys, 0, MYVOLUMEINFO_REUSABLE);
if (idx >= 0) {
UnitInfo *ui;
uci->configoffset = idx;
ui = &mountinfo.ui[idx];
ui->configureddrive = 1;
}
} else if (uci->controller <= HD_CONTROLLER_IDE3) {
gayle_add_ide_unit (uci->controller - HD_CONTROLLER_IDE0, uci->rootdir, uci->blocksize, uci->readonly,
uci->devname, uci->sectors, uci->surfaces, uci->reserved,
uci->bootpri, uci->filesys);
} else if (uci->controller <= HD_CONTROLLER_SCSI6) {
if (currprefs.cs_mbdmac) {
a3000_add_scsi_unit (uci->controller - HD_CONTROLLER_SCSI0, uci->rootdir, uci->blocksize, uci->readonly,
uci->devname, uci->sectors, uci->surfaces, uci->reserved,
uci->bootpri, uci->filesys);
} else if (currprefs.cs_a2091) {
a2091_add_scsi_unit (uci->controller - HD_CONTROLLER_SCSI0, uci->rootdir, uci->blocksize, uci->readonly,
uci->devname, uci->sectors, uci->surfaces, uci->reserved,
uci->bootpri, uci->filesys);
} else if (currprefs.cs_cdtvscsi) {
cdtv_add_scsi_unit (uci->controller - HD_CONTROLLER_SCSI0, uci->rootdir, uci->blocksize, uci->readonly,
uci->devname, uci->sectors, uci->surfaces, uci->reserved,
uci->bootpri, uci->filesys);
}
} else if (uci->controller == HD_CONTROLLER_PCMCIA_SRAM) {
gayle_add_pcmcia_sram_unit (uci->rootdir, uci->readonly);
}
}
filesys_addexternals ();
}
int sprintf_filesys_unit (TCHAR *buffer, int num)
{
UnitInfo *uip = mountinfo.ui;
if (uip[num].volname != 0)
_stprintf (buffer, L"(DH%d:) Filesystem, %s: %s %s", num, uip[num].volname,
uip[num].rootdir, uip[num].readonly ? "ro" : "");
else
_stprintf (buffer, L"(DH%d:) Hardfile, \"%s\", size %d Mbytes", num,
uip[num].rootdir, uip[num].hf.virtsize / (1024 * 1024));
return 0;
}
void free_mountinfo (void)
{
int i;
for (i = 0; i < MAX_FILESYSTEM_UNITS; i++)
close_filesys_unit (mountinfo.ui + i);
gayle_free_units ();
}
struct hardfiledata *get_hardfile_data (int nr)
{
UnitInfo *uip = mountinfo.ui;
if (nr < 0 || nr >= MAX_FILESYSTEM_UNITS || uip[nr].open == 0 || is_hardfile (nr) == FILESYS_VIRTUAL)
return 0;
return &uip[nr].hf;
}
/* 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
/* result codes */
#define DOS_TRUE ((unsigned long)-1L)
#define DOS_FALSE (0L)
#define MAXFILESIZE32 (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_MAKE_LINK 1021
#define ACTION_READ_LINK 1024
#define ACTION_FORMAT 1020
#define ACTION_IS_FILESYSTEM 1027
#define ACTION_ADD_NOTIFY 4097
#define ACTION_REMOVE_NOTIFY 4098
#define ACTION_CHANGE_FILE_POSITION64 8001
#define ACTION_GET_FILE_POSITION64 8002
#define ACTION_CHANGE_FILE_SIZE64 8003
#define ACTION_GET_FILE_SIZE64 8004
#define DISK_TYPE 0x444f5301 /* DOS\1 */
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;
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;
} 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;
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 long total_locked_ainos;
/* ExAll */
ExAllKey exalls[EXALLKEYS];
int exallid;
/* Keys */
struct key *keys;
a_inode rootnode;
unsigned long aino_cache_size;
a_inode *aino_hash[MAX_AINO_HASH];
unsigned long nr_cache_hits;
unsigned long nr_cache_lookups;
struct notify *notifyhash[NOTIFY_HASH_SIZE];
int volflags;
uae_u32 lockkey;
bool inhibited;
bool canremovable;
int mountcount;
struct zvolume *zarchive;
int reinsertdelay;
TCHAR *newvolume;
TCHAR *newrootdir;
bool newreadonly;
int newflags;
} Unit;
static uae_u32 a_uniq, key_uniq;
typedef uaecptr dpacket;
#define PUT_PCK_RES1(p,v) do { put_long ((p) + dp_Res1, (v)); } while (0)
#define PUT_PCK_RES2(p,v) do { put_long ((p) + dp_Res2, (v)); } while (0)
#define GET_PCK_TYPE(p) ((uae_s32)(get_long ((p) + dp_Type)))
#define GET_PCK_RES1(p) ((uae_s32)(get_long ((p) + dp_Res1)))
#define GET_PCK_RES2(p) ((uae_s32)(get_long ((p) + dp_Res2)))
#define GET_PCK_ARG1(p) ((uae_s32)(get_long ((p) + dp_Arg1)))
#define GET_PCK_ARG2(p) ((uae_s32)(get_long ((p) + dp_Arg2)))
#define GET_PCK_ARG3(p) ((uae_s32)(get_long ((p) + dp_Arg3)))
#define GET_PCK_ARG4(p) ((uae_s32)(get_long ((p) + dp_Arg4)))
#define GET_PCK_ARG5(p) ((uae_s32)(get_long ((p) + dp_Arg5)))
#define PUT_PCK64_RES0(p,v) do { put_long ((p) + dp64_Res0, (v)); } while (0)
#define PUT_PCK64_RES1(p,v) do { put_long ((p) + dp64_Res1, (((uae_u64)v) >> 32)); put_long ((p) + dp64_Res1 + 4, ((uae_u32)v)); } while (0)
#define PUT_PCK64_RES2(p,v) do { put_long ((p) + dp64_Res2, (v)); } while (0)
#define GET_PCK64_TYPE(p) ((uae_s32)(get_long ((p) + dp64_Type)))
#define GET_PCK64_RES0(p) ((uae_s32)(get_long ((p) + dp64_Res0)))
#define GET_PCK64_RES1(p) ( (((uae_s64)(get_long ((p) + dp64_Res1))) << 32) | (((uae_s64)(get_long ((p) + dp64_Res1 + 4))) << 0) )
#define GET_PCK64_ARG1(p) ((uae_s32)(get_long ((p) + dp64_Arg1)))
#define GET_PCK64_ARG2(p) ( (((uae_s64)(get_long ((p) + dp64_Arg2))) << 32) | (((uae_s64)(get_long ((p) + dp64_Arg2 + 4))) << 0) )
#define GET_PCK64_ARG3(p) ((uae_s32)(get_long ((p) + dp64_Arg3)))
#define GET_PCK64_ARG4(p) ((uae_s32)(get_long ((p) + dp64_Arg4)))
#define GET_PCK64_ARG5(p) ( (((uae_s64)(get_long ((p) + dp64_Arg5))) << 32) | (((uae_s64)(get_long ((p) + dp64_Arg5 + 4))) << 0) )
static int flush_cache (Unit *unit, int num);
static TCHAR *char1 (uaecptr addr)
{
static uae_char buf[1024];
static TCHAR bufx[1024];
unsigned int i = 0;
do {
buf[i] = get_byte (addr);
addr++;
} while (buf[i++] && i < sizeof (buf));
return au_fs_copy (bufx, sizeof (bufx) / sizeof (TCHAR), buf);
}
static TCHAR *bstr1 (uaecptr addr)
{
static TCHAR bufx[257];
static uae_char buf[257];
int i;
int n = get_byte (addr);
addr++;
for (i = 0; i < n; i++, addr++)
buf[i] = get_byte (addr);
buf[i] = 0;
return au_fs_copy (bufx, sizeof (bufx) / sizeof (TCHAR), buf);
}
static TCHAR *bstr (Unit *unit, uaecptr addr)
{
int i;
int n = get_byte (addr);
uae_char buf[257];
addr++;
for (i = 0; i < n; i++, addr++)
buf[i] = get_byte (addr);
buf[i] = 0;
au_fs_copy (unit->tmpbuf3, sizeof (unit->tmpbuf3) / sizeof (TCHAR), buf);
return unit->tmpbuf3;
}
static TCHAR *bstr_cut (Unit *unit, uaecptr addr)
{
TCHAR *p = unit->tmpbuf3;
int i, colon_seen = 0, off;
int n = get_byte (addr);
uae_char buf[257];
off = 0;
addr++;
for (i = 0; i < n; i++, addr++) {
uae_u8 c = get_byte (addr);
buf[i] = c;
if (c == '/' || (c == ':' && colon_seen++ == 0))
off = i + 1;
}
buf[i] = 0;
au_fs_copy (unit->tmpbuf3, sizeof (unit->tmpbuf3) / sizeof (TCHAR), buf);
return &p[off];
}
static Unit *units = 0;
static Unit*
find_unit (uaecptr port)
{
Unit* u;
for (u = units; u; u = u->next)
if (u->port == port)
break;
return u;
}
static struct fs_dirhandle *fs_opendir (Unit *u, const TCHAR *nname)
{
struct fs_dirhandle *fsd = xmalloc (struct fs_dirhandle, 1);
fsd->isarch = !!(u->volflags & MYVOLUMEINFO_ARCHIVE);
if (fsd->isarch) {
fsd->zd = zfile_opendir_archive (nname);
if (!fsd->zd)
goto end;
} else {
fsd->od = my_opendir (nname);
if (!fsd->od)
goto end;
}
return fsd;
end:
xfree (fsd);
return NULL;
}
static void fs_closedir (struct fs_dirhandle *fsd)
{
if (!fsd)
return;
if (fsd->isarch)
zfile_closedir_archive (fsd->zd);
else
my_closedir (fsd->od);
xfree (fsd);
}
static struct fs_filehandle *fs_open (Unit *unit, const TCHAR *name, int flags)
{