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libc/winsup/cygwin/devices.h

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/* devices.h
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#pragma once
typedef unsigned short _major_t;
typedef unsigned short _minor_t;
#define FHDEV(maj, min) ((((unsigned) (maj)) << (sizeof (_major_t) * 8)) | (unsigned) (min))
#define _minor(dev) ((dev) & ((1 << (sizeof (_minor_t) * 8)) - 1))
#define _major(dev) ((dev) >> (sizeof (_major_t) * 8))
#include <sys/stat.h>
#include <dirent.h>
#include "cygheap_malloc.h"
#define MAX_CONSOLES 63
enum fh_devices
{
DEV_TTY_MAJOR = 5,
FH_TTY = FHDEV (DEV_TTY_MAJOR, 0),
FH_CONSOLE = FHDEV (DEV_TTY_MAJOR, 1),
FH_PTMX = FHDEV (DEV_TTY_MAJOR, 2),
FH_CONIN = FHDEV (DEV_TTY_MAJOR, 255),
FH_CONOUT = FHDEV (DEV_TTY_MAJOR, 254),
DEV_CONS_MAJOR = 3,
FH_CONS = FHDEV (DEV_CONS_MAJOR, 0),
FH_CONS_MAX = FHDEV (DEV_CONS_MAJOR, MAX_CONSOLES),
DEV_PTYM_MAJOR = 128,
FH_PTYM = FHDEV (DEV_PTYM_MAJOR, 0),
FH_PTYM_MAX= FHDEV (DEV_PTYM_MAJOR, 255),
DEV_PTYS_MAJOR = 136,
FH_PTYS = FHDEV (DEV_PTYS_MAJOR, 0), /* FIXME: Should separate ttys and ptys */
FH_PTYS_MAX= FHDEV (DEV_PTYS_MAJOR, 255), /* FIXME: Should separate ttys and ptys */
DEV_SERIAL_MAJOR = 117,
FH_SERIAL = FHDEV (117, 0), /* /dev/ttyS? */
DEV_MISC_MAJOR = 13,
FH_WINDOWS = FHDEV (DEV_MISC_MAJOR, 255),
FH_CLIPBOARD=FHDEV (DEV_MISC_MAJOR, 254),
/* begin /proc directories */
DEV_VIRTFS_MAJOR = 0,
FH_PROC_MIN_MINOR = FHDEV (DEV_VIRTFS_MAJOR, 200),
FH_PROCSYSVIPC = FHDEV (DEV_VIRTFS_MAJOR, 249),
FH_PROCSYS = FHDEV (DEV_VIRTFS_MAJOR, 250),
FH_PROCESSFD = FHDEV (DEV_VIRTFS_MAJOR, 251),
FH_PROCNET = FHDEV (DEV_VIRTFS_MAJOR, 252),
FH_REGISTRY= FHDEV (DEV_VIRTFS_MAJOR, 253),
FH_PROCESS = FHDEV (DEV_VIRTFS_MAJOR, 254),
FH_PROC = FHDEV (DEV_VIRTFS_MAJOR, 255),
FH_PROC_MAX_MINOR = FHDEV (DEV_VIRTFS_MAJOR, 255),
/* end /proc directories */
FH_PIPE = FHDEV (DEV_VIRTFS_MAJOR, 199),
FH_PIPER = FHDEV (DEV_VIRTFS_MAJOR, 198),
FH_PIPEW = FHDEV (DEV_VIRTFS_MAJOR, 197),
FH_FIFO = FHDEV (DEV_VIRTFS_MAJOR, 196),
FH_FS = FHDEV (DEV_VIRTFS_MAJOR, 195), /* filesystem based device */
FH_NETDRIVE= FHDEV (DEV_VIRTFS_MAJOR, 194),
FH_DEV = FHDEV (DEV_VIRTFS_MAJOR, 193),
FH_CYGDRIVE= FHDEV (DEV_VIRTFS_MAJOR, 192),
DEV_FLOPPY_MAJOR = 2,
FH_FLOPPY = FHDEV (DEV_FLOPPY_MAJOR, 0),
DEV_CDROM_MAJOR = 11,
FH_CDROM = FHDEV (DEV_CDROM_MAJOR, 0),
DEV_TAPE_MAJOR = 9,
FH_TAPE = FHDEV (DEV_TAPE_MAJOR, 0),
FH_NTAPE = FHDEV (DEV_TAPE_MAJOR, 128),
FH_MAXNTAPE= FHDEV (DEV_TAPE_MAJOR, 255),
DEV_SD_MAJOR = 8,
DEV_SD1_MAJOR = 65,
DEV_SD2_MAJOR = 66,
DEV_SD3_MAJOR = 67,
DEV_SD4_MAJOR = 68,
DEV_SD5_MAJOR = 69,
DEV_SD6_MAJOR = 70,
DEV_SD7_MAJOR = 71,
DEV_SD_HIGHPART_START = 259, /* partition # > 15 */
DEV_SD_HIGHPART_END = 284,
FH_SD = FHDEV (DEV_SD_MAJOR, 0),
FH_SD1 = FHDEV (DEV_SD1_MAJOR, 0),
FH_SD2 = FHDEV (DEV_SD2_MAJOR, 0),
FH_SD3 = FHDEV (DEV_SD3_MAJOR, 0),
FH_SD4 = FHDEV (DEV_SD4_MAJOR, 0),
FH_SD5 = FHDEV (DEV_SD5_MAJOR, 0),
FH_SD6 = FHDEV (DEV_SD6_MAJOR, 0),
FH_SD7 = FHDEV (DEV_SD7_MAJOR, 0),
FH_SDA = FHDEV (DEV_SD_MAJOR, 0),
FH_SDB = FHDEV (DEV_SD_MAJOR, 16),
FH_SDC = FHDEV (DEV_SD_MAJOR, 32),
FH_SDD = FHDEV (DEV_SD_MAJOR, 48),
FH_SDE = FHDEV (DEV_SD_MAJOR, 64),
FH_SDF = FHDEV (DEV_SD_MAJOR, 80),
FH_SDG = FHDEV (DEV_SD_MAJOR, 96),
FH_SDH = FHDEV (DEV_SD_MAJOR, 112),
FH_SDI = FHDEV (DEV_SD_MAJOR, 128),
FH_SDJ = FHDEV (DEV_SD_MAJOR, 144),
FH_SDK = FHDEV (DEV_SD_MAJOR, 160),
FH_SDL = FHDEV (DEV_SD_MAJOR, 176),
FH_SDM = FHDEV (DEV_SD_MAJOR, 192),
FH_SDN = FHDEV (DEV_SD_MAJOR, 208),
FH_SDO = FHDEV (DEV_SD_MAJOR, 224),
FH_SDP = FHDEV (DEV_SD_MAJOR, 240),
FH_SDQ = FHDEV (DEV_SD1_MAJOR, 0),
FH_SDR = FHDEV (DEV_SD1_MAJOR, 16),
FH_SDS = FHDEV (DEV_SD1_MAJOR, 32),
FH_SDT = FHDEV (DEV_SD1_MAJOR, 48),
FH_SDU = FHDEV (DEV_SD1_MAJOR, 64),
FH_SDV = FHDEV (DEV_SD1_MAJOR, 80),
FH_SDW = FHDEV (DEV_SD1_MAJOR, 96),
FH_SDX = FHDEV (DEV_SD1_MAJOR, 112),
FH_SDY = FHDEV (DEV_SD1_MAJOR, 128),
FH_SDZ = FHDEV (DEV_SD1_MAJOR, 144),
FH_SDAA = FHDEV (DEV_SD1_MAJOR, 160),
FH_SDAB = FHDEV (DEV_SD1_MAJOR, 176),
FH_SDAC = FHDEV (DEV_SD1_MAJOR, 192),
FH_SDAD = FHDEV (DEV_SD1_MAJOR, 208),
FH_SDAE = FHDEV (DEV_SD1_MAJOR, 224),
FH_SDAF = FHDEV (DEV_SD1_MAJOR, 240),
FH_SDAG = FHDEV (DEV_SD2_MAJOR, 0),
FH_SDAH = FHDEV (DEV_SD2_MAJOR, 16),
FH_SDAI = FHDEV (DEV_SD2_MAJOR, 32),
FH_SDAJ = FHDEV (DEV_SD2_MAJOR, 48),
FH_SDAK = FHDEV (DEV_SD2_MAJOR, 64),
FH_SDAL = FHDEV (DEV_SD2_MAJOR, 80),
FH_SDAM = FHDEV (DEV_SD2_MAJOR, 96),
FH_SDAN = FHDEV (DEV_SD2_MAJOR, 112),
FH_SDAO = FHDEV (DEV_SD2_MAJOR, 128),
FH_SDAP = FHDEV (DEV_SD2_MAJOR, 144),
FH_SDAQ = FHDEV (DEV_SD2_MAJOR, 160),
FH_SDAR = FHDEV (DEV_SD2_MAJOR, 176),
FH_SDAS = FHDEV (DEV_SD2_MAJOR, 192),
FH_SDAT = FHDEV (DEV_SD2_MAJOR, 208),
FH_SDAU = FHDEV (DEV_SD2_MAJOR, 224),
FH_SDAV = FHDEV (DEV_SD2_MAJOR, 240),
FH_SDAW = FHDEV (DEV_SD3_MAJOR, 0),
FH_SDAX = FHDEV (DEV_SD3_MAJOR, 16),
FH_SDAY = FHDEV (DEV_SD3_MAJOR, 32),
FH_SDAZ = FHDEV (DEV_SD3_MAJOR, 48),
FH_SDBA = FHDEV (DEV_SD3_MAJOR, 64),
FH_SDBB = FHDEV (DEV_SD3_MAJOR, 80),
FH_SDBC = FHDEV (DEV_SD3_MAJOR, 96),
FH_SDBD = FHDEV (DEV_SD3_MAJOR, 112),
FH_SDBE = FHDEV (DEV_SD3_MAJOR, 128),
FH_SDBF = FHDEV (DEV_SD3_MAJOR, 144),
FH_SDBG = FHDEV (DEV_SD3_MAJOR, 160),
FH_SDBH = FHDEV (DEV_SD3_MAJOR, 176),
FH_SDBI = FHDEV (DEV_SD3_MAJOR, 192),
FH_SDBJ = FHDEV (DEV_SD3_MAJOR, 208),
FH_SDBK = FHDEV (DEV_SD3_MAJOR, 224),
FH_SDBL = FHDEV (DEV_SD3_MAJOR, 240),
FH_SDBM = FHDEV (DEV_SD4_MAJOR, 0),
FH_SDBN = FHDEV (DEV_SD4_MAJOR, 16),
FH_SDBO = FHDEV (DEV_SD4_MAJOR, 32),
FH_SDBP = FHDEV (DEV_SD4_MAJOR, 48),
FH_SDBQ = FHDEV (DEV_SD4_MAJOR, 64),
FH_SDBR = FHDEV (DEV_SD4_MAJOR, 80),
FH_SDBS = FHDEV (DEV_SD4_MAJOR, 96),
FH_SDBT = FHDEV (DEV_SD4_MAJOR, 112),
FH_SDBU = FHDEV (DEV_SD4_MAJOR, 128),
FH_SDBV = FHDEV (DEV_SD4_MAJOR, 144),
FH_SDBW = FHDEV (DEV_SD4_MAJOR, 160),
FH_SDBX = FHDEV (DEV_SD4_MAJOR, 176),
FH_SDBY = FHDEV (DEV_SD4_MAJOR, 192),
FH_SDBZ = FHDEV (DEV_SD4_MAJOR, 208),
FH_SDCA = FHDEV (DEV_SD4_MAJOR, 224),
FH_SDCB = FHDEV (DEV_SD4_MAJOR, 240),
FH_SDCC = FHDEV (DEV_SD5_MAJOR, 0),
FH_SDCD = FHDEV (DEV_SD5_MAJOR, 16),
FH_SDCE = FHDEV (DEV_SD5_MAJOR, 32),
FH_SDCF = FHDEV (DEV_SD5_MAJOR, 48),
FH_SDCG = FHDEV (DEV_SD5_MAJOR, 64),
FH_SDCH = FHDEV (DEV_SD5_MAJOR, 80),
FH_SDCI = FHDEV (DEV_SD5_MAJOR, 96),
FH_SDCJ = FHDEV (DEV_SD5_MAJOR, 112),
FH_SDCK = FHDEV (DEV_SD5_MAJOR, 128),
FH_SDCL = FHDEV (DEV_SD5_MAJOR, 144),
FH_SDCM = FHDEV (DEV_SD5_MAJOR, 160),
FH_SDCN = FHDEV (DEV_SD5_MAJOR, 176),
FH_SDCO = FHDEV (DEV_SD5_MAJOR, 192),
FH_SDCP = FHDEV (DEV_SD5_MAJOR, 208),
FH_SDCQ = FHDEV (DEV_SD5_MAJOR, 224),
FH_SDCR = FHDEV (DEV_SD5_MAJOR, 240),
FH_SDCS = FHDEV (DEV_SD6_MAJOR, 0),
FH_SDCT = FHDEV (DEV_SD6_MAJOR, 16),
FH_SDCU = FHDEV (DEV_SD6_MAJOR, 32),
FH_SDCV = FHDEV (DEV_SD6_MAJOR, 48),
FH_SDCW = FHDEV (DEV_SD6_MAJOR, 64),
FH_SDCX = FHDEV (DEV_SD6_MAJOR, 80),
FH_SDCY = FHDEV (DEV_SD6_MAJOR, 96),
FH_SDCZ = FHDEV (DEV_SD6_MAJOR, 112),
FH_SDDA = FHDEV (DEV_SD6_MAJOR, 128),
FH_SDDB = FHDEV (DEV_SD6_MAJOR, 144),
FH_SDDC = FHDEV (DEV_SD6_MAJOR, 160),
FH_SDDD = FHDEV (DEV_SD6_MAJOR, 176),
FH_SDDE = FHDEV (DEV_SD6_MAJOR, 192),
FH_SDDF = FHDEV (DEV_SD6_MAJOR, 208),
FH_SDDG = FHDEV (DEV_SD6_MAJOR, 224),
FH_SDDH = FHDEV (DEV_SD6_MAJOR, 240),
FH_SDDI = FHDEV (DEV_SD7_MAJOR, 0),
FH_SDDJ = FHDEV (DEV_SD7_MAJOR, 16),
FH_SDDK = FHDEV (DEV_SD7_MAJOR, 32),
FH_SDDL = FHDEV (DEV_SD7_MAJOR, 48),
FH_SDDM = FHDEV (DEV_SD7_MAJOR, 64),
FH_SDDN = FHDEV (DEV_SD7_MAJOR, 80),
FH_SDDO = FHDEV (DEV_SD7_MAJOR, 96),
FH_SDDP = FHDEV (DEV_SD7_MAJOR, 112),
FH_SDDQ = FHDEV (DEV_SD7_MAJOR, 128),
FH_SDDR = FHDEV (DEV_SD7_MAJOR, 144),
FH_SDDS = FHDEV (DEV_SD7_MAJOR, 160),
FH_SDDT = FHDEV (DEV_SD7_MAJOR, 176),
FH_SDDU = FHDEV (DEV_SD7_MAJOR, 192),
FH_SDDV = FHDEV (DEV_SD7_MAJOR, 208),
FH_SDDW = FHDEV (DEV_SD7_MAJOR, 224),
FH_SDDX = FHDEV (DEV_SD7_MAJOR, 240),
DEV_MEM_MAJOR = 1,
FH_NULL = FHDEV (DEV_MEM_MAJOR, 3),
FH_ZERO = FHDEV (DEV_MEM_MAJOR, 5),
FH_FULL = FHDEV (DEV_MEM_MAJOR, 7),
FH_RANDOM = FHDEV (DEV_MEM_MAJOR, 8),
FH_URANDOM = FHDEV (DEV_MEM_MAJOR, 9),
DEV_SOUND_MAJOR = 14,
FH_OSS_DSP = FHDEV (DEV_SOUND_MAJOR, 3),
DEV_SOCK_MAJOR = 30,
FH_SOCKET = FHDEV (DEV_SOCK_MAJOR, 0),
FH_INET = FHDEV (DEV_SOCK_MAJOR, 36),
FH_UNIX = FHDEV (DEV_SOCK_MAJOR, 42),
FH_LOCAL = FHDEV (DEV_SOCK_MAJOR, 120),
FH_NADA = FHDEV (0, 0),
FH_ERROR = FHDEV (255, 255) /* Set by fh constructor when error detected */
};
/* struct _device is required to allow the code in devices.cc autogenerated
from devices.in continuing to work, even with a proper class device.
We need to keep up with this as long as we use shilka to build a device
table.
Do not add members to device. Always add it to _device. */
class device;
struct _device
{
const char *_name;
union __cygwin_dev
{
dev_t devn;
fh_devices devn_fh_devices;
struct
{
_minor_t minor;
_major_t major;
};
} d;
const char *_native;
int (*exists_func) (const device&);
__mode_t _mode;
bool lives_in_dev;
bool dev_on_fs;
bool name_allocated;
bool native_allocated;
};
class device : private _device
{
void parsedisk (int, int);
void name (const char *n, bool a)
{
_name = (!(name_allocated = a)) ? n : cstrdup (n);
}
void native (const char *n, bool a)
{
_native = (!(native_allocated = a)) ? n : cstrdup (n);
}
public:
device () { memset (this, 0, sizeof *this); }
device (int drive, int part)
{
memset (this, 0, sizeof *this);
parsedisk (drive, part);
}
~device ()
{
if (name_allocated)
cfree ((void *) _name);
if (native_allocated)
cfree ((void *) _native);
}
const char *name () const { return _name; }
const char *native () const { return _native; }
__mode_t mode () const { return _mode; }
void mode (__mode_t m) { _mode = m; }
void name (const char *n) { name (n, false); }
void native (const char *n) { native (n, false); }
void dup ()
{
name (_name, name_allocated);
native (_native, native_allocated);
}
void parse (const char *);
void parse (_major_t major, _minor_t minor);
void parse (dev_t dev);
inline bool setunit (unsigned n)
{
d.minor = n;
return true;
}
static void init ();
static _major_t major (dev_t n)
{
__cygwin_dev d;
d.devn = n;
return d.major;
}
static _minor_t minor (dev_t n)
{
__cygwin_dev d;
d.devn = n;
return d.minor;
}
static _major_t major (int n) {return major ((dev_t) n);}
static _minor_t minor (int n) {return minor ((dev_t) n);}
bool is_device (dev_t n) const {return n == d.devn; }
bool not_device (dev_t n) const {return d.devn && n != d.devn; }
_minor_t get_minor () const {return d.minor;}
_major_t get_major () const {return d.major;}
dev_t get_device () const {return d.devn;}
inline operator fh_devices () {return d.devn_fh_devices;}
inline operator bool () {return !!d.devn;}
inline operator dev_t& () {return d.devn;}
device &operator = (_device _d)
{
memcpy (this, &_d, sizeof _d);
dev_on_fs = name_allocated = native_allocated = false;
return *this;
}
device &operator = (device &_d)
{
memcpy (this, &_d, sizeof _d);
name (_d.name (), _d.name_allocated);
native (_d.native (), _d.native_allocated);
return *this;
}
fh_devices operator = (fh_devices n) {return d.devn_fh_devices = n;}
inline void setfs (bool x) {dev_on_fs = x;}
inline bool isfs () const {return dev_on_fs || d.devn == FH_FS;}
inline bool is_fs_special () const {return dev_on_fs && d.devn != FH_FS;}
inline bool is_dev_resident () const {return lives_in_dev;}
inline int exists () const {return exists_func (*this);}
unsigned char type () const
{
if (S_ISBLK (_mode))
return DT_BLK;
return _mode >> 12;
}
};
extern const _device dev_storage[];
extern const _device *dev_storage_end;
extern const _device *console_dev;
extern const _device *ptmx_dev;
extern const _device *ptys_dev;
extern const _device *urandom_dev;
extern const _device dev_socket_storage;
#define socket_dev ((device *) &dev_socket_storage)
extern const _device dev_af_inet_storage;
#define af_inet_dev ((device *) &dev_af_inet_storage)
extern const _device dev_af_local_storage;
#define af_local_dev ((device *) &dev_af_local_storage)
extern const _device dev_af_unix_storage;
#define af_unix_dev ((device *) &dev_af_unix_storage)
extern const _device dev_piper_storage;
#define piper_dev ((device *) &dev_piper_storage)
extern const _device dev_pipew_storage;
#define pipew_dev ((device *) &dev_pipew_storage)
extern const _device dev_proc_storage;
#define proc_dev ((device *) &dev_proc_storage)
extern const _device dev_dev_storage;
#define dev_dev ((device *) &dev_dev_storage)
extern const _device dev_netdrive_storage;
#define netdrive_dev ((device *) &dev_netdrive_storage)
extern const _device dev_cygdrive_storage;
#define cygdrive_dev ((device *) &dev_cygdrive_storage)
extern const _device dev_fh_storage;
#define fh_dev ((device *) &dev_fh_storage)
extern const _device dev_fs_storage;
#define fs_dev ((device *) &dev_fs_storage)
#define isproc_dev(devn) \
(devn >= FH_PROC_MIN_MINOR && devn <= FH_PROC_MAX_MINOR)
#define iscygdrive_dev(devn) (devn == FH_CYGDRIVE)
#define isdev_dev(devn) (devn == FH_DEV)
#define isprocsys_dev(devn) (devn == FH_PROCSYS)
#define isvirtual_dev(devn) \
(isproc_dev (devn) || devn == FH_CYGDRIVE || devn == FH_NETDRIVE)
#define iscons_dev(n) \
((device::major ((dev_t) (n)) == DEV_CONS_MAJOR) \
|| (((dev_t) n) == FH_CONSOLE) \
|| (((dev_t) n) == FH_CONIN) \
|| (((dev_t) n) == FH_CONOUT))
#define istty_slave_dev(n) (device::major (n) == DEV_PTYS_MAJOR)
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