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* Makefile.in (DLL_OFILES): Add quotactl.o. 

* common.din (quotactl): Export.
	* ntdll.h: Define FILE_FS_CONTROL_INFORMATION::FileSystemControlFlags
	flag values.
	(struct _FILE_FS_CONTROL_INFORMATION): Define.
	(struct _FILE_GET_QUOTA_INFORMATION): Define.
	(typedef struct _FILE_QUOTA_INFORMATION): Define.
	(NtQueryObject): Use PVOID rather than VOID*.
	(NtQueryVolumeInformationFile): Ditto.
	(NtQueryQuotaInformationFile): Declare.
	(NtSetQuotaInformationFile): Declare.
	(NtSetVolumeInformationFile): Declare.
	* quotactl.cc: New file implementing quotactl().
	* include/sys/mount.h (BLOCK_SIZE): Define.
	(BLOCK_SIZE_BITS): Define.
	* include/sys/quota.h: New header.
	* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
This commit is contained in:
Corinna Vinschen 2014-10-17 08:19:27 +00:00
parent 5fedfc22b8
commit 1db937e986
8 changed files with 660 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,23 @@
2014-10-16 Corinna Vinschen <corinna@vinschen.de>
* Makefile.in (DLL_OFILES): Add quotactl.o.
* common.din (quotactl): Export.
* ntdll.h: Define FILE_FS_CONTROL_INFORMATION::FileSystemControlFlags
flag values.
(struct _FILE_FS_CONTROL_INFORMATION): Define.
(struct _FILE_GET_QUOTA_INFORMATION): Define.
(typedef struct _FILE_QUOTA_INFORMATION): Define.
(NtQueryObject): Use PVOID rather than VOID*.
(NtQueryVolumeInformationFile): Ditto.
(NtQueryQuotaInformationFile): Declare.
(NtSetQuotaInformationFile): Declare.
(NtSetVolumeInformationFile): Declare.
* quotactl.cc: New file implementing quotactl().
* include/sys/mount.h (BLOCK_SIZE): Define.
(BLOCK_SIZE_BITS): Define.
* include/sys/quota.h: New header.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
2014-10-16 Corinna Vinschen <corinna@vinschen.de>
* Makefile.in (DLL_OFILES): Rearrange with one file per line.

1
winsup/cygwin/Makefile.in
View File

@ -252,6 +252,7 @@ DLL_OFILES:= \
posix_ipc.o \
pseudo-reloc.o \
pthread.o \
quotactl.o \
random.o \
regcomp.o \
regerror.o \

1
winsup/cygwin/common.din
View File

@ -920,6 +920,7 @@ putwc SIGFE
putwchar SIGFE
pwrite SIGFE
qsort NOSIGFE
quotactl SIGFE
raise SIGFE
rand NOSIGFE
rand_r NOSIGFE

3
winsup/cygwin/include/cygwin/version.h
View File

@ -453,12 +453,13 @@ details. */
CW_CYGNAME_FROM_WINNAME.
276: Export ffsl, ffsll.
277: Add setsockopt(SO_PEERCRED).
278: Add quotactl.
*/
/* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
#define CYGWIN_VERSION_API_MAJOR 0
#define CYGWIN_VERSION_API_MINOR 277
#define CYGWIN_VERSION_API_MINOR 278
/* There is also a compatibity version number associated with the
shared memory regions. It is incremented when incompatible

7
winsup/cygwin/include/sys/mount.h
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@ -1,7 +1,7 @@
/* sys/mount.h
Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2008, 2009, 2010, 2012
Red Hat, Inc.
Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2008, 2009, 2010, 2012,
2014 Red Hat, Inc.
This file is part of Cygwin.
@ -12,6 +12,9 @@ details. */
#ifndef _SYS_MOUNT_H
#define _SYS_MOUNT_H
#define BLOCK_SIZE 1024
#define BLOCK_SIZE_BITS 10
#ifdef __cplusplus
extern "C" {
#endif

239
winsup/cygwin/include/sys/quota.h Normal file
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@ -0,0 +1,239 @@
/* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Robert Elz at The University of Melbourne.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _SYS_QUOTA_H
#define _SYS_QUOTA_H 1
#include <features.h>
#include <sys/types.h>
/* This file is copied from Linux and kept verbatim, except for the below
Cygwin-specific blocks. */
#ifdef __CYGWIN__
/* On Linux these defines live in <linux/quota.h>. Move them here for easier
access. */
/* Quota format type IDs */
#define QFMT_VFS_OLD 1
#define QFMT_VFS_V0 2
#define QFMT_OCFS2 3
#define QFMT_VFS_V1 4
#endif
/*
* Select between different incompatible quota versions.
* Default to the version used by Linux kernel version 2.4.22
* or later. */
#ifndef _LINUX_QUOTA_VERSION
# define _LINUX_QUOTA_VERSION 2
#endif
#if defined (__CYGWIN__) && _LINUX_QUOTA_VERSION != 2
#error Cygwin only supports quota version 2.
#endif
/*
* Convert diskblocks to blocks and the other way around.
* currently only to fool the BSD source. :-)
*/
#define dbtob(num) ((num) << 10)
#define btodb(num) ((num) >> 10)
/*
* Convert count of filesystem blocks to diskquota blocks, meant
* for filesystems where i_blksize != BLOCK_SIZE
*/
#define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / BLOCK_SIZE)
/*
* Definitions for disk quotas imposed on the average user
* (big brother finally hits Linux).
*
* The following constants define the amount of time given a user
* before the soft limits are treated as hard limits (usually resulting
* in an allocation failure). The timer is started when the user crosses
* their soft limit, it is reset when they go below their soft limit.
*/
#define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */
#define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */
#define MAXQUOTAS 2
#define USRQUOTA 0 /* element used for user quotas */
#define GRPQUOTA 1 /* element used for group quotas */
/*
* Definitions for the default names of the quotas files.
*/
#define INITQFNAMES { \
"user", /* USRQUOTA */ \
"group", /* GRPQUOTA */ \
"undefined", \
};
#define QUOTAFILENAME "quota"
#define QUOTAGROUP "staff"
#define NR_DQHASH 43 /* Just an arbitrary number any suggestions ? */
#define NR_DQUOTS 256 /* Number of quotas active at one time */
/*
* Command definitions for the 'quotactl' system call.
* The commands are broken into a main command defined below
* and a subcommand that is used to convey the type of
* quota that is being manipulated (see above).
*/
#define SUBCMDMASK 0x00ff
#define SUBCMDSHIFT 8
#define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
#if _LINUX_QUOTA_VERSION < 2
# define Q_QUOTAON 0x0100 /* enable quotas */
# define Q_QUOTAOFF 0x0200 /* disable quotas */
# define Q_GETQUOTA 0x0300 /* get limits and usage */
# define Q_SETQUOTA 0x0400 /* set limits and usage */
# define Q_SETUSE 0x0500 /* set usage */
# define Q_SYNC 0x0600 /* sync disk copy of a filesystems quotas */
# define Q_SETQLIM 0x0700 /* set limits */
# define Q_GETSTATS 0x0800 /* get collected stats */
# define Q_RSQUASH 0x1000 /* set root_squash option */
#else
# define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */
# define Q_QUOTAON 0x800002 /* turn quotas on */
# define Q_QUOTAOFF 0x800003 /* turn quotas off */
# define Q_GETFMT 0x800004 /* get quota format used on given filesystem */
# define Q_GETINFO 0x800005 /* get information about quota files */
# define Q_SETINFO 0x800006 /* set information about quota files */
# define Q_GETQUOTA 0x800007 /* get user quota structure */
# define Q_SETQUOTA 0x800008 /* set user quota structure */
#endif
/*
* The following structure defines the format of the disk quota file
* (as it appears on disk) - the file is an array of these structures
* indexed by user or group number.
*/
#if _LINUX_QUOTA_VERSION < 2
struct dqblk
{
u_int32_t dqb_bhardlimit; /* absolute limit on disk blks alloc */
u_int32_t dqb_bsoftlimit; /* preferred limit on disk blks */
u_int32_t dqb_curblocks; /* current block count */
u_int32_t dqb_ihardlimit; /* maximum # allocated inodes */
u_int32_t dqb_isoftlimit; /* preferred inode limit */
u_int32_t dqb_curinodes; /* current # allocated inodes */
time_t dqb_btime; /* time limit for excessive disk use */
time_t dqb_itime; /* time limit for excessive files */
};
#else
/* Flags that indicate which fields in dqblk structure are valid. */
#define QIF_BLIMITS 1
#define QIF_SPACE 2
#define QIF_ILIMITS 4
#define QIF_INODES 8
#define QIF_BTIME 16
#define QIF_ITIME 32
#define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
#define QIF_USAGE (QIF_SPACE | QIF_INODES)
#define QIF_TIMES (QIF_BTIME | QIF_ITIME)
#define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
struct dqblk
{
u_int64_t dqb_bhardlimit; /* absolute limit on disk quota blocks alloc */
u_int64_t dqb_bsoftlimit; /* preferred limit on disk quota blocks */
u_int64_t dqb_curspace; /* current quota block count */
u_int64_t dqb_ihardlimit; /* maximum # allocated inodes */
u_int64_t dqb_isoftlimit; /* preferred inode limit */
u_int64_t dqb_curinodes; /* current # allocated inodes */
u_int64_t dqb_btime; /* time limit for excessive disk use */
u_int64_t dqb_itime; /* time limit for excessive files */
u_int32_t dqb_valid; /* bitmask of QIF_* constants */
};
#endif
/*
* Shorthand notation.
*/
#define dq_bhardlimit dq_dqb.dqb_bhardlimit
#define dq_bsoftlimit dq_dqb.dqb_bsoftlimit
#if _LINUX_QUOTA_VERSION < 2
# define dq_curblocks dq_dqb.dqb_curblocks
#else
# define dq_curspace dq_dqb.dqb_curspace
# define dq_valid dq_dqb.dqb_valid
#endif
#define dq_ihardlimit dq_dqb.dqb_ihardlimit
#define dq_isoftlimit dq_dqb.dqb_isoftlimit
#define dq_curinodes dq_dqb.dqb_curinodes
#define dq_btime dq_dqb.dqb_btime
#define dq_itime dq_dqb.dqb_itime
#define dqoff(UID) ((loff_t)((UID) * sizeof (struct dqblk)))
#if _LINUX_QUOTA_VERSION < 2
struct dqstats
{
u_int32_t lookups;
u_int32_t drops;
u_int32_t reads;
u_int32_t writes;
u_int32_t cache_hits;
u_int32_t pages_allocated;
u_int32_t allocated_dquots;
u_int32_t free_dquots;
u_int32_t syncs;
};
#else
/* Flags that indicate which fields in dqinfo structure are valid. */
# define IIF_BGRACE 1
# define IIF_IGRACE 2
# define IIF_FLAGS 4
# define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
struct dqinfo
{
u_int64_t dqi_bgrace;
u_int64_t dqi_igrace;
u_int32_t dqi_flags;
u_int32_t dqi_valid;
};
#endif
__BEGIN_DECLS
extern int quotactl (int __cmd, const char *__special, int __id,
caddr_t __addr) __THROW;
__END_DECLS
#endif /* sys/quota.h */

57
winsup/cygwin/ntdll.h
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@ -143,6 +143,19 @@
#define HEAP_FLAG_EXECUTABLE 0x40000
#define HEAP_FLAG_DEBUGGED 0x40000000
#define FILE_VC_QUOTA_NONE 0x00000000
#define FILE_VC_QUOTA_TRACK 0x00000001
#define FILE_VC_QUOTA_ENFORCE 0x00000002
#define FILE_VC_QUOTA_MASK 0x00000003
#define FILE_VC_CONTENT_INDEX_DISABLED 0x00000008
#define FILE_VC_LOG_QUOTA_THRESHOLD 0x00000010
#define FILE_VC_LOG_QUOTA_LIMIT 0x00000020
#define FILE_VC_LOG_VOLUME_THRESHOLD 0x00000040
#define FILE_VC_LOG_VOLUME_LIMIT 0x00000080
#define FILE_VC_QUOTAS_INCOMPLETE 0x00000100
#define FILE_VC_QUOTAS_REBUILDING 0x00000200
#define FILE_VC_VALID_MASK 0x000003ff
/* IOCTL code to impersonate client of named pipe. */
#define FSCTL_PIPE_IMPERSONATE CTL_CODE(FILE_DEVICE_NAMED_PIPE, 7, \
METHOD_BUFFERED, FILE_ANY_ACCESS)
@ -999,6 +1012,16 @@ typedef struct _FILE_FS_SIZE_INFORMATION
ULONG BytesPerSector;
} FILE_FS_SIZE_INFORMATION, *PFILE_FS_SIZE_INFORMATION;
/* Checked on 64 bit. */
typedef struct _FILE_FS_CONTROL_INFORMATION {
LARGE_INTEGER FreeSpaceStartFiltering;
LARGE_INTEGER FreeSpaceThreshold;
LARGE_INTEGER FreeSpaceStopFiltering;
LARGE_INTEGER DefaultQuotaThreshold;
LARGE_INTEGER DefaultQuotaLimit;
ULONG FileSystemControlFlags;
} FILE_FS_CONTROL_INFORMATION, *PFILE_FS_CONTROL_INFORMATION;
/* Checked on 64 bit. */
typedef struct _FILE_FS_FULL_SIZE_INFORMATION
{
@ -1066,6 +1089,24 @@ typedef struct _DIRECTORY_BASIC_INFORMATION
UNICODE_STRING ObjectTypeName;
} DIRECTORY_BASIC_INFORMATION, *PDIRECTORY_BASIC_INFORMATION;
/* Checked on 64 bit. */
typedef struct _FILE_GET_QUOTA_INFORMATION {
ULONG NextEntryOffset;
ULONG SidLength;
SID Sid;
} FILE_GET_QUOTA_INFORMATION, *PFILE_GET_QUOTA_INFORMATION;
/* Checked on 64 bit. */
typedef struct _FILE_QUOTA_INFORMATION {
ULONG NextEntryOffset;
ULONG SidLength;
LARGE_INTEGER ChangeTime;
LARGE_INTEGER QuotaUsed;
LARGE_INTEGER QuotaThreshold;
LARGE_INTEGER QuotaLimit;
SID Sid;
} FILE_QUOTA_INFORMATION, *PFILE_QUOTA_INFORMATION;
/* Checked on 64 bit. */
typedef struct _FILE_GET_EA_INFORMATION
{
@ -1301,8 +1342,11 @@ extern "C"
ULONG, PULONG);
NTSTATUS NTAPI NtQueryInformationToken (HANDLE, TOKEN_INFORMATION_CLASS,
PVOID, ULONG, PULONG);
NTSTATUS NTAPI NtQueryObject (HANDLE, OBJECT_INFORMATION_CLASS, VOID *,
ULONG, ULONG *);
NTSTATUS NTAPI NtQueryObject (HANDLE, OBJECT_INFORMATION_CLASS, PVOID, ULONG,
PULONG);
NTSTATUS NTAPI NtQueryQuotaInformationFile (HANDLE, PIO_STATUS_BLOCK, PVOID,
ULONG, BOOLEAN, PVOID, ULONG,
PSID, BOOLEAN);
NTSTATUS NTAPI NtQuerySemaphore (HANDLE, SEMAPHORE_INFORMATION_CLASS,
PVOID, ULONG, PULONG);
NTSTATUS NTAPI NtQuerySystemInformation (SYSTEM_INFORMATION_CLASS,
@ -1319,9 +1363,8 @@ extern "C"
PULONG);
NTSTATUS NTAPI NtQueryVirtualMemory (HANDLE, PVOID, MEMORY_INFORMATION_CLASS,
PVOID, SIZE_T, PSIZE_T);
NTSTATUS NTAPI NtQueryVolumeInformationFile (HANDLE, IO_STATUS_BLOCK *,
VOID *, ULONG,
FS_INFORMATION_CLASS);
NTSTATUS NTAPI NtQueryVolumeInformationFile (HANDLE, PIO_STATUS_BLOCK, PVOID,
ULONG, FS_INFORMATION_CLASS);
NTSTATUS NTAPI NtReadFile (HANDLE, HANDLE, PIO_APC_ROUTINE, PVOID,
PIO_STATUS_BLOCK, PVOID, ULONG, PLARGE_INTEGER,
PULONG);
@ -1333,6 +1376,8 @@ extern "C"
NTSTATUS NTAPI NtSetInformationThread (HANDLE, THREADINFOCLASS, PVOID, ULONG);
NTSTATUS NTAPI NtSetInformationToken (HANDLE, TOKEN_INFORMATION_CLASS, PVOID,
ULONG);
NTSTATUS NTAPI NtSetQuotaInformationFile (HANDLE, PIO_STATUS_BLOCK, PVOID,
ULONG);
NTSTATUS NTAPI NtSetSecurityObject (HANDLE, SECURITY_INFORMATION,
PSECURITY_DESCRIPTOR);
NTSTATUS NTAPI NtSetTimer (HANDLE, PLARGE_INTEGER, PTIMER_APC_ROUTINE, PVOID,
@ -1340,6 +1385,8 @@ extern "C"
NTSTATUS NTAPI NtSetTimerResolution (ULONG, BOOLEAN, PULONG);
NTSTATUS NTAPI NtSetValueKey (HANDLE, PUNICODE_STRING, ULONG, ULONG, PVOID,
ULONG);
NTSTATUS NTAPI NtSetVolumeInformationFile (HANDLE, PIO_STATUS_BLOCK, PVOID,
ULONG, FS_INFORMATION_CLASS);
NTSTATUS NTAPI NtUnlockFile (HANDLE, PIO_STATUS_BLOCK, PLARGE_INTEGER,
PLARGE_INTEGER, ULONG);
NTSTATUS NTAPI NtUnlockVirtualMemory (HANDLE, PVOID *, PSIZE_T, ULONG);

340
winsup/cygwin/quotactl.cc Normal file
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@ -0,0 +1,340 @@
/* quotactl.cc: code for manipulating disk quotas
Copyright 2014 Red Hat, Inc.
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. */
#include "winsup.h"
#include "cygtls.h"
#include "security.h"
#include "path.h"
#include "fhandler.h"
#include "dtable.h"
#include "cygheap.h"
#include "ntdll.h"
#include "tls_pbuf.h"
#include <sys/mount.h>
#include <sys/quota.h>
#define PGQI_SIZE (sizeof (FILE_GET_QUOTA_INFORMATION) + SECURITY_MAX_SID_SIZE)
#define PFQI_SIZE (sizeof (FILE_QUOTA_INFORMATION) + SECURITY_MAX_SID_SIZE)
/* Modelled after the Linux quotactl function. */
extern "C" int
quotactl (int cmd, const char *special, int id, caddr_t addr)
{
ACCESS_MASK access = FILE_READ_DATA;
cygsid sid;
path_conv pc;
tmp_pathbuf tp;
UNICODE_STRING path;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
HANDLE fh;
IO_STATUS_BLOCK io;
FILE_FS_CONTROL_INFORMATION ffci;
int ret = 0;
uint32_t subcmd = (uint32_t) cmd >> SUBCMDSHIFT;
uint32_t type = (uint32_t) cmd & SUBCMDMASK;
if (type != USRQUOTA && type != GRPQUOTA)
{
set_errno (EINVAL);
return -1;
}
switch (subcmd)
{
case Q_SYNC:
if (!special)
return 0;
access |= FILE_WRITE_DATA;
break;
case Q_QUOTAON:
if (id < QFMT_VFS_OLD || id > QFMT_VFS_V1)
{
set_errno (EINVAL);
return -1;
}
/*FALLTHRU*/
case Q_QUOTAOFF:
case Q_SETINFO:
access |= FILE_WRITE_DATA;
break;
case Q_GETFMT:
case Q_GETINFO:
break;
case Q_SETQUOTA:
access |= FILE_WRITE_DATA;
/*FALLTHRU*/
case Q_GETQUOTA:
/* Windows feature: Default limits. Get or set them with id == -1. */
if (id != -1)
{
struct passwd *pw = NULL;
struct group *gr = NULL;
if (type == USRQUOTA)
pw = internal_getpwuid (id);
else
gr = internal_getgrgid (id);
if (pw)
sid.getfrompw (pw);
else if (gr)
sid.getfromgr (gr);
else
{
set_errno (EINVAL);
return -1;
}
}
break;
default:
set_errno (EINVAL);
return -1;
}
/* Check path */
pc.check (special, PC_SYM_FOLLOW | PC_NOWARN, stat_suffixes);
if (pc.error)
{
set_errno (pc.error);
return -1;
}
if (!pc.exists ())
{
set_errno (ENOENT);
return -1;
}
if (!S_ISBLK (pc.dev.mode))
{
set_errno (ENOTBLK);
return -1;
}
pc.get_object_attr (attr, sec_none_nih);
/* For the following functions to work, we must attach the virtual path to
the quota file to the device path.
FIXME: Note that this is NTFS-specific. Adding ReFS in another step. */
tp.u_get (&path);
RtlCopyUnicodeString (&path, attr.ObjectName);
RtlAppendUnicodeToString (&path, L"\\$Extend\\$Quota:$Q:$INDEX_ALLOCATION");
attr.ObjectName = &path;
/* Open filesystem */
status = NtOpenFile (&fh, access, &attr, &io, FILE_SHARE_VALID_FLAGS, 0);
if (NT_SUCCESS (status))
switch (subcmd)
{
case Q_SYNC:
/* No sync, just report success. */
status = STATUS_SUCCESS;
break;
case Q_QUOTAON:
case Q_QUOTAOFF:
/* Ignore filename in addr. */
status = NtQueryVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
FileFsControlInformation);
if (!NT_SUCCESS (status))
break;
ffci.FileSystemControlFlags &= ~FILE_VC_QUOTA_ENFORCE
& ~FILE_VC_QUOTA_TRACK
& ~FILE_VC_QUOTAS_INCOMPLETE
& ~FILE_VC_QUOTAS_REBUILDING;
if (subcmd == Q_QUOTAON)
ffci.FileSystemControlFlags |= FILE_VC_QUOTA_ENFORCE;
status = NtSetVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
FileFsControlInformation);
break;
case Q_GETFMT:
__try
{
uint32_t *retval = (uint32_t *) addr;
/* Always fake the latest format. */
*retval = QFMT_VFS_V1;
}
__except (EFAULT)
{
ret = -1;
break;
}
__endtry
status = STATUS_SUCCESS;
break;
case Q_GETINFO:
__try
{
struct dqinfo *dqi = (struct dqinfo *) addr;
dqi->dqi_bgrace = dqi->dqi_igrace = UINT64_MAX;
dqi->dqi_flags = 0;
dqi->dqi_valid = IIF_BGRACE | IIF_IGRACE;
}
__except (EFAULT)
{
ret = -1;
break;
}
__endtry
status = STATUS_SUCCESS;
break;
case Q_SETINFO:
/* No settings possible, just report success. */
status = STATUS_SUCCESS;
break;
case Q_GETQUOTA:
/* Windows feature: Default limits. Get or set them with id == -1. */
if (id == -1)
{
status = NtQueryVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
FileFsControlInformation);
if (!NT_SUCCESS (status))
break;
__try
{
struct dqblk *dq = (struct dqblk *) addr;
dq->dqb_bhardlimit = (uint64_t) ffci.DefaultQuotaLimit.QuadPart;
if (dq->dqb_bhardlimit != UINT64_MAX)
dq->dqb_bhardlimit /= BLOCK_SIZE;
dq->dqb_bsoftlimit =
(uint64_t) ffci.DefaultQuotaThreshold.QuadPart;
if (dq->dqb_bsoftlimit != UINT64_MAX)
dq->dqb_bsoftlimit /= BLOCK_SIZE;
dq->dqb_curspace = 0;
dq->dqb_ihardlimit = UINT64_MAX;
dq->dqb_isoftlimit = UINT64_MAX;
dq->dqb_curinodes = 0;
dq->dqb_btime = UINT64_MAX;
dq->dqb_itime = UINT64_MAX;
dq->dqb_valid = QIF_BLIMITS;
}
__except (EFAULT)
{
ret = -1;
break;
}
__endtry
}
else
{
PFILE_GET_QUOTA_INFORMATION pgqi = (PFILE_GET_QUOTA_INFORMATION)
alloca (PGQI_SIZE);
PFILE_QUOTA_INFORMATION pfqi = (PFILE_QUOTA_INFORMATION)
alloca (PFQI_SIZE);
pgqi->NextEntryOffset = 0;
pgqi->SidLength = RtlLengthSid (sid);
RtlCopySid (RtlLengthSid (sid), &pgqi->Sid, sid);
status = NtQueryQuotaInformationFile (fh, &io, pfqi, PFQI_SIZE,
TRUE, pgqi, PGQI_SIZE,
NULL, TRUE);
if (!NT_SUCCESS (status))
break;
__try
{
struct dqblk *dq = (struct dqblk *) addr;
dq->dqb_bhardlimit = (uint64_t) pfqi->QuotaLimit.QuadPart;
if (dq->dqb_bhardlimit != UINT64_MAX)
dq->dqb_bhardlimit /= BLOCK_SIZE;
dq->dqb_bsoftlimit = (uint64_t) pfqi->QuotaThreshold.QuadPart;
if (dq->dqb_bsoftlimit != UINT64_MAX)
dq->dqb_bsoftlimit /= BLOCK_SIZE;
dq->dqb_curspace = (uint64_t) pfqi->QuotaUsed.QuadPart;
if (dq->dqb_curspace != UINT64_MAX)
dq->dqb_curspace /= BLOCK_SIZE;
dq->dqb_ihardlimit = UINT64_MAX;
dq->dqb_isoftlimit = UINT64_MAX;
dq->dqb_curinodes = 0;
dq->dqb_btime = UINT64_MAX;
dq->dqb_itime = UINT64_MAX;
dq->dqb_valid = QIF_BLIMITS | QIF_SPACE;
}
__except (EFAULT)
{
ret = -1;
break;
}
__endtry
}
break;
case Q_SETQUOTA:
/* Windows feature: Default limits. Get or set them with id == -1. */
if (id == -1)
{
status = NtQueryVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
FileFsControlInformation);
if (!NT_SUCCESS (status))
break;
__try
{
struct dqblk *dq = (struct dqblk *) addr;
if (!(dq->dqb_valid & QIF_BLIMITS))
break;
ffci.DefaultQuotaLimit.QuadPart = dq->dqb_bhardlimit;
if (ffci.DefaultQuotaLimit.QuadPart != -1)
ffci.DefaultQuotaLimit.QuadPart *= BLOCK_SIZE;
ffci.DefaultQuotaThreshold.QuadPart = dq->dqb_bsoftlimit;
if (ffci.DefaultQuotaThreshold.QuadPart != -1)
ffci.DefaultQuotaThreshold.QuadPart *= BLOCK_SIZE;
}
__except (EFAULT)
{
ret = -1;
break;
}
__endtry
status = NtSetVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
FileFsControlInformation);
}
else
{
PFILE_GET_QUOTA_INFORMATION pgqi = (PFILE_GET_QUOTA_INFORMATION)
alloca (PGQI_SIZE);
PFILE_QUOTA_INFORMATION pfqi = (PFILE_QUOTA_INFORMATION)
alloca (PFQI_SIZE);
pgqi->NextEntryOffset = 0;
pgqi->SidLength = RtlLengthSid (sid);
RtlCopySid (RtlLengthSid (sid), &pgqi->Sid, sid);
status = NtQueryQuotaInformationFile (fh, &io, pfqi, PFQI_SIZE,
TRUE, pgqi, PGQI_SIZE,
NULL, TRUE);
if (!NT_SUCCESS (status))
break;
__try
{
struct dqblk *dq = (struct dqblk *) addr;
if (!(dq->dqb_valid & QIF_BLIMITS))
break;
pfqi->QuotaLimit.QuadPart = dq->dqb_bhardlimit;
if (pfqi->QuotaLimit.QuadPart != -1)
pfqi->QuotaLimit.QuadPart *= BLOCK_SIZE;
pfqi->QuotaThreshold.QuadPart = dq->dqb_bsoftlimit;
if (pfqi->QuotaThreshold.QuadPart != -1)
pfqi->QuotaThreshold.QuadPart *= BLOCK_SIZE;
}
__except (EFAULT)
{
ret = -1;
break;
}
__endtry
status = NtSetQuotaInformationFile (fh, &io, pfqi, PFQI_SIZE);
}
break;
}
if (!NT_SUCCESS (status))
{
__seterrno_from_nt_status (status);
ret = -1;
}
return ret;
}