* 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.

2 files changed, 244 insertions, 2 deletions

diff --git a/winsup/cygwin/include/sys/mount.h b/winsup/cygwin/include/sys/mount.h
index 0f5c17240..458cf801f 100644
--- a/winsup/cygwin/include/sys/mount.h
+++ b/winsup/cygwin/include/sys/mount.h
@@ -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
diff --git a/winsup/cygwin/include/sys/quota.h b/winsup/cygwin/include/sys/quota.h
new file mode 100644
index 000000000..7edb53e8a
--- /dev/null
+++ b/winsup/cygwin/include/sys/quota.h
@@ -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 */