73447abbb6
* devices.cc: Regenerate. * dtable.cc (fh_alloc): Don't forget FH_KMEM. * fhandler_mem.cc (fhandler_dev_mem::open): Set errno to EACCES rather than ENOENT on systems not granting access to physical memory from user space.
276 lines
8.5 KiB
Plaintext
276 lines
8.5 KiB
Plaintext
%import {
|
|
#include "winsup.h"
|
|
#include "devices.h"
|
|
#include "sys/cygwin.h"
|
|
#include "tty.h"
|
|
#include "pinfo.h"
|
|
#include "shared_info.h"
|
|
#include "path.h"
|
|
#include "fhandler.h"
|
|
#include "ntdll.h"
|
|
|
|
typedef const device *KR_device_t;
|
|
}
|
|
%type KR_device_t
|
|
%local {
|
|
|
|
static int
|
|
exists_internal (const device&)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static int
|
|
exists (const device&)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/* Check existence of POSIX devices backed by real NT devices. */
|
|
static int
|
|
exists_ntdev (const device& dev)
|
|
{
|
|
WCHAR wpath[MAX_PATH];
|
|
UNICODE_STRING upath;
|
|
OBJECT_ATTRIBUTES attr;
|
|
HANDLE h;
|
|
NTSTATUS status;
|
|
|
|
sys_mbstowcs (wpath, MAX_PATH, dev.native);
|
|
RtlInitUnicodeString (&upath, wpath);
|
|
InitializeObjectAttributes (&attr, &upath, OBJ_CASE_INSENSITIVE, NULL, NULL);
|
|
/* Except for the serial IO devices, the native paths are
|
|
direct device paths, not symlinks, so every status code
|
|
except for "NOT_FOUND" means the device exists. */
|
|
status = NtOpenSymbolicLinkObject (&h, SYMBOLIC_LINK_QUERY, &attr);
|
|
switch (status)
|
|
{
|
|
case STATUS_OBJECT_NAME_NOT_FOUND:
|
|
case STATUS_OBJECT_PATH_NOT_FOUND:
|
|
return false;
|
|
case STATUS_SUCCESS:
|
|
NtClose (h);
|
|
default:
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/* Don't list via readdir but allow as a direct reference. */
|
|
static int
|
|
exists_ntdev_silent (const device& dev)
|
|
{
|
|
return exists_ntdev (dev) ? -1 : false;
|
|
}
|
|
|
|
static int
|
|
exists_console (const device& dev)
|
|
{
|
|
int devn = *const_cast<device *> (&dev);
|
|
switch (devn)
|
|
{
|
|
case FH_CONSOLE:
|
|
case FH_CONIN:
|
|
case FH_CONOUT:
|
|
return fhandler_console::exists ();
|
|
default:
|
|
/* Only show my own console device (for now?) */
|
|
return iscons_dev (myself->ctty) && myself->ctty == devn;
|
|
}
|
|
}
|
|
|
|
static int
|
|
exists_pty (const device& dev)
|
|
{
|
|
/* Only existing slave ptys. */
|
|
return cygwin_shared->tty.connect (dev.get_minor ()) != -1;
|
|
}
|
|
|
|
const device dev_cygdrive_storage =
|
|
{"/cygdrive", {FH_CYGDRIVE}, "/cygdrive", exists};
|
|
|
|
const device dev_fs_storage =
|
|
{"", {FH_FS}, "", exists};
|
|
|
|
const device dev_proc_storage =
|
|
{"", {FH_PROC}, "", exists};
|
|
|
|
const device dev_procnet_storage =
|
|
{"", {FH_PROCNET}, "", exists};
|
|
|
|
const device dev_procsys_storage =
|
|
{"", {FH_PROCSYS}, "", exists};
|
|
|
|
const device dev_procsysvipc_storage =
|
|
{"", {FH_PROCSYSVIPC}, "", exists};
|
|
|
|
const device dev_netdrive_storage =
|
|
{"", {FH_NETDRIVE}, "", exists};
|
|
|
|
const device dev_registry_storage =
|
|
{"", {FH_REGISTRY}, "", exists_internal};
|
|
|
|
const device dev_piper_storage =
|
|
{"", {FH_PIPER}, "", exists_internal};
|
|
|
|
const device dev_pipew_storage =
|
|
{"", {FH_PIPEW}, "", exists_internal};
|
|
|
|
const device dev_tcp_storage =
|
|
{"", {FH_TCP}, "", exists_internal};
|
|
|
|
const device dev_udp_storage =
|
|
{"", {FH_UDP}, "", exists_internal};
|
|
|
|
const device dev_stream_storage =
|
|
{"", {FH_STREAM}, "", exists_internal};
|
|
|
|
const device dev_dgram_storage =
|
|
{"", {FH_DGRAM}, "", exists_internal};
|
|
|
|
const device dev_bad_storage =
|
|
{"", {FH_NADA}, "", exists_internal};
|
|
|
|
const device dev_error_storage =
|
|
{"", {FH_ERROR}, "", exists_internal};
|
|
|
|
#define BRACK(x) {devn_int: x}
|
|
%storage_here
|
|
}
|
|
/* Internal devices below are prefixed with a ":". This moves them out of
|
|
the POSIX namespace. */
|
|
%%
|
|
"/dev", BRACK(FH_DEV), "/dev", exists, S_IFDIR
|
|
"/dev/tty", BRACK(FH_TTY), "/dev/tty", exists, S_IFCHR
|
|
"/dev/pty%(0-63)d", BRACK(FHDEV(DEV_PTYS_MAJOR, {$1})), "/dev/pty{$1}", exists_pty, S_IFCHR, =ptys_dev
|
|
":ptym%(0-63)d", BRACK(FHDEV(DEV_PTYM_MAJOR, {$1})), "/dev/ptym{$1}", exists_internal, S_IFCHR, =ptym_dev
|
|
"/dev/cons%(0-63)d", BRACK(FHDEV(DEV_CONS_MAJOR, {$1})), "/dev/cons{$1}", exists_console, S_IFCHR, =cons_dev
|
|
"/dev/console", BRACK(FH_CONSOLE), "/dev/console", exists_console, S_IFCHR, =console_dev
|
|
"/dev/ptmx", BRACK(FH_PTMX), "/dev/ptmx", exists, S_IFCHR
|
|
"/dev/windows", BRACK(FH_WINDOWS), "/dev/windows", exists, S_IFCHR
|
|
"/dev/dsp", BRACK(FH_OSS_DSP), "/dev/dsp", exists, S_IFCHR
|
|
"/dev/conin", BRACK(FH_CONIN), "/dev/conin", exists_console, S_IFCHR
|
|
"/dev/conout", BRACK(FH_CONOUT), "/dev/conout", exists_console, S_IFCHR
|
|
"/dev/null", BRACK(FH_NULL), "\\Device\\Null", exists_ntdev, S_IFCHR
|
|
"/dev/zero", BRACK(FH_ZERO), "/dev/zero", exists, S_IFCHR
|
|
"/dev/full", BRACK(FH_FULL), "/dev/full", exists, S_IFCHR
|
|
"/dev/random", BRACK(FH_RANDOM), "/dev/random", exists, S_IFCHR
|
|
"/dev/urandom", BRACK(FH_URANDOM), "/dev/urandom", exists, S_IFCHR, =urandom_dev
|
|
"/dev/mem", BRACK(FH_MEM), "/dev/mem", exists, S_IFCHR
|
|
"/dev/kmem", BRACK(FH_KMEM), "/dev/kmem", exists, S_IFCHR
|
|
"/dev/clipboard", BRACK(FH_CLIPBOARD), "/dev/clipboard", exists, S_IFCHR
|
|
"/dev/port", BRACK(FH_PORT), "/dev/port", exists, S_IFCHR
|
|
"/dev/com%(1-16)d", BRACK(FHDEV(DEV_SERIAL_MAJOR, {$1 - 1})), "\\??\\COM{$1}", exists_ntdev_silent, S_IFCHR
|
|
"/dev/ttyS%(0-63)d", BRACK(FHDEV(DEV_SERIAL_MAJOR, {$1})), "\\??\\COM{$1 + 1}", exists_ntdev, S_IFCHR
|
|
":pipe", BRACK(FH_PIPE), "/dev/pipe", exists_internal, S_IFCHR
|
|
":fifo", BRACK(FH_FIFO), "/dev/fifo", exists_internal, S_IFCHR
|
|
"/dev/st%(0-127)d", BRACK(FHDEV(DEV_TAPE_MAJOR, {$1})), "\\Device\\Tape{$1}", exists_ntdev, S_IFBLK
|
|
"/dev/nst%(0-127)d", BRACK(FHDEV(DEV_TAPE_MAJOR, {$1 + 128})), "\\Device\\Tape{$1}", exists_ntdev, S_IFBLK
|
|
"/dev/fd%(0-15)d", BRACK(FHDEV(DEV_FLOPPY_MAJOR, {$1})), "\\Device\\Floppy{$1}", exists_ntdev, S_IFBLK
|
|
"/dev/scd%(0-15)d", BRACK(FHDEV(DEV_CDROM_MAJOR, {$1})), "\\Device\\CdRom{$1}", exists_ntdev, S_IFBLK
|
|
"/dev/sr%(0-15)d", BRACK(FHDEV(DEV_CDROM_MAJOR, {$1})), "\\Device\\CdRom{$1}", exists_ntdev, S_IFBLK
|
|
"/dev/sd%{a-z}s", BRACK(FH_SD{uc $1}), "\\Device\\Harddisk{ord($1) - ord('a')}\\Partition0", exists_ntdev, S_IFBLK
|
|
"/dev/sda%{a-z}s", BRACK(FH_SDA{uc $1}), "\\Device\\Harddisk{26 + ord($1) - ord('a')}\\Partition0", exists_ntdev, S_IFBLK
|
|
"/dev/sdb%{a-z}s", BRACK(FH_SDB{uc $1}), "\\Device\\Harddisk{52 + ord($1) - ord('a')}\\Partition0", exists_ntdev, S_IFBLK
|
|
"/dev/sdc%{a-z}s", BRACK(FH_SDC{uc $1}), "\\Device\\Harddisk{78 + ord($1) - ord('a')}\\Partition0", exists_ntdev, S_IFBLK
|
|
"/dev/sdd%{a-x}s", BRACK(FH_SDD{uc $1}), "\\Device\\Harddisk{104 + ord($1) - ord('a')}\\Partition0", exists_ntdev, S_IFBLK
|
|
"/dev/sd%{a-z}s%(1-15)d", BRACK(FH_SD{uc $1} | {$2}), "\\Device\\Harddisk{ord($1) - ord('a')}\\Partition{$2 % 16}", exists_ntdev, S_IFBLK
|
|
"/dev/sda%{a-z}s%(1-15)d", BRACK(FH_SDA{uc $1} | {$2}), "\\Device\\Harddisk{26 + ord($1) - ord('a')}\\Partition{$2 % 16}", exists_ntdev, S_IFBLK
|
|
"/dev/sdb%{a-z}s%(1-15)d", BRACK(FH_SDB{uc $1} | {$2}), "\\Device\\Harddisk{52 + ord($1) - ord('a')}\\Partition{$2 % 16}", exists_ntdev, S_IFBLK
|
|
"/dev/sdc%{a-z}s%(1-15)d", BRACK(FH_SDC{uc $1} | {$2}), "\\Device\\Harddisk{78 + ord($1) - ord('a')}\\Partition{$2 % 16}", exists_ntdev, S_IFBLK
|
|
"/dev/sdd%{a-x}s%(1-15)d", BRACK(FH_SDD{uc $1} | {$2}), "\\Device\\Harddisk{104 + ord($1) - ord('a')}\\Partition{$2 % 16}", exists_ntdev, S_IFBLK
|
|
"/dev/kmsg", BRACK(FH_KMSG), "\\Device\\MailSlot\\cygwin\\dev\\kmsg", exists_ntdev, S_IFCHR
|
|
%other {return NULL;}
|
|
%%
|
|
#undef BRACK
|
|
|
|
const device *dev_storage_end = dev_storage + (sizeof dev_storage / sizeof dev_storage[0]);
|
|
|
|
void
|
|
device::parse (const char *s)
|
|
{
|
|
size_t len = strlen (s);
|
|
const device *dev = KR_find_keyword (s, len);
|
|
|
|
if (!dev)
|
|
*this = *fs_dev;
|
|
else
|
|
*this = *dev;
|
|
}
|
|
|
|
void
|
|
device::init ()
|
|
{
|
|
/* nothing to do... yet */
|
|
}
|
|
|
|
void
|
|
device::parse (_major_t major, _minor_t minor)
|
|
{
|
|
_dev_t devn = FHDEV (major, minor);
|
|
|
|
d.devn = 0;
|
|
|
|
for (const device *devidx = dev_storage; devidx < dev_storage_end; devidx++)
|
|
if (devidx->d.devn == devn)
|
|
{
|
|
*this = *devidx;
|
|
break;
|
|
}
|
|
|
|
if (!*this)
|
|
d.devn = FHDEV (major, minor);
|
|
}
|
|
|
|
void
|
|
device::parse (_dev_t dev)
|
|
{
|
|
parse (_major (dev), _minor (dev));
|
|
}
|
|
|
|
void
|
|
device::parsedisk (int drive, int part)
|
|
{
|
|
int base;
|
|
if (drive < ('q' - 'a')) /* /dev/sda -to- /dev/sdp */
|
|
base = DEV_SD_MAJOR;
|
|
else if (drive < 32) /* /dev/sdq -to- /dev/sdaf */
|
|
{
|
|
base = DEV_SD1_MAJOR;
|
|
drive -= 'q' - 'a';
|
|
}
|
|
else if (drive < 48) /* /dev/sdag -to- /dev/sdav */
|
|
{
|
|
base = DEV_SD2_MAJOR;
|
|
drive -= 32;
|
|
}
|
|
else if (drive < 64) /* /dev/sdaw -to- /dev/sdbl */
|
|
{
|
|
base = DEV_SD3_MAJOR;
|
|
drive -= 48;
|
|
}
|
|
else if (drive < 80) /* /dev/sdbm -to- /dev/sdcb */
|
|
{
|
|
base = DEV_SD4_MAJOR;
|
|
drive -= 64;
|
|
}
|
|
else if (drive < 96) /* /dev/sdcc -to- /dev/sdcr */
|
|
{
|
|
base = DEV_SD5_MAJOR;
|
|
drive -= 80;
|
|
}
|
|
else if (drive < 112) /* /dev/sdcs -to- /dev/sddh */
|
|
{
|
|
base = DEV_SD6_MAJOR;
|
|
drive -= 96;
|
|
}
|
|
/* NOTE: This will cause multiple /dev/sddx entries in
|
|
/proc/partitions if there are more than 128 devices */
|
|
else /* /dev/sddi -to- /dev/sddx */
|
|
{
|
|
base = DEV_SD7_MAJOR;
|
|
drive -= 112;
|
|
}
|
|
parse (base, part + (drive * 16));
|
|
}
|