Add NT quota support. Patch from Stefan (metze) Metzemacher

1. Allows to change quota settings for shared mount points from Win2K and WinXP from Explorer properties tab
2. Disabled by default and when requested, will be probed and enabled only on Linux where it works
3. Was tested for approx. two weeks now on Linux by two independent QA teams, have not found any bugs so far
Documentation to follow
(This used to be commit 4bf022ce9e45be85609426762ba2644ac2031326)

5 files changed, 227 insertions, 19 deletions

diff --git a/source3/include/nterr.h b/source3/include/nterr.h
index dcc26d98848..19c70cffcc9 100644
--- a/source3/include/nterr.h
+++ b/source3/include/nterr.h
@@ -558,6 +558,7 @@
 #define NT_STATUS_TOO_MANY_LINKS NT_STATUS(0xC0000000 | 0x0265)
 #define NT_STATUS_QUOTA_LIST_INCONSISTENT NT_STATUS(0xC0000000 | 0x0266)
 #define NT_STATUS_FILE_IS_OFFLINE NT_STATUS(0xC0000000 | 0x0267)
+#define NT_STATUS_NOT_A_REPARSE_POINT NT_STATUS(0xC0000000 | 0x0275)
 #define NT_STATUS_NO_SUCH_JOB NT_STATUS(0xC0000000 | 0xEDE) /* scheduler */
 
 #endif /* _NTERR_H */
diff --git a/source3/include/ntioctl.h b/source3/include/ntioctl.h
index 4749842ddc5..17791fde18f 100644
--- a/source3/include/ntioctl.h
+++ b/source3/include/ntioctl.h
@@ -23,4 +23,46 @@
   we only need the sparse flag
 */
 
-#define NTIOCTL_SET_SPARSE 0x900c4
+
+/* IOCTL information */
+/* List of ioctl function codes that look to be of interest to remote clients like this. */
+/* Need to do some experimentation to make sure they all work remotely.                  */
+/* Some of the following such as the encryption/compression ones would be                */
+/* invoked from tools via a specialized hook into the VFS rather than via the            */
+/* standard vfs entry points */
+#define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000
+#define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004
+#define FSCTL_REQUEST_BATCH_OPLOCK   0x00090008
+#define FSCTL_LOCK_VOLUME            0x00090018
+#define FSCTL_UNLOCK_VOLUME          0x0009001C
+#define FSCTL_GET_COMPRESSION        0x0009003C
+#define FSCTL_SET_COMPRESSION        0x0009C040
+#define FSCTL_REQUEST_FILTER_OPLOCK  0x0009008C
+#define FSCTL_FIND_FILES_BY_SID	     0x0009008F
+#define FSCTL_FILESYS_GET_STATISTICS 0x00090090
+#define FSCTL_SET_REPARSE_POINT      0x000900A4
+#define FSCTL_GET_REPARSE_POINT      0x000900A8
+#define FSCTL_DELETE_REPARSE_POINT   0x000900AC
+#define FSCTL_0x000900C0	     0x000900C0
+#define FSCTL_SET_SPARSE             0x000900C4
+#define FSCTL_SET_ZERO_DATA          0x000900C8
+#define FSCTL_SET_ENCRYPTION         0x000900D7
+#define FSCTL_ENCRYPTION_FSCTL_IO    0x000900DB
+#define FSCTL_WRITE_RAW_ENCRYPTED    0x000900DF
+#define FSCTL_READ_RAW_ENCRYPTED     0x000900E3
+#define FSCTL_SIS_COPYFILE           0x00090100
+#define FSCTL_SIS_LINK_FILES         0x0009C104
+
+#if 0
+#define FSCTL_SECURITY_ID_CHECK
+#define FSCTL_DISMOUNT_VOLUME
+#define FSCTL_GET_NTFS_FILE_RECORD
+#define FSCTL_ALLOW_EXTENDED_DASD_IO
+#define FSCTL_RECALL_FILE
+#define FSCTL_QUERY_ALLOCATED_RANGES
+
+#endif
+
+#define IO_REPARSE_TAG_MOUNT_POINT   0xA0000003
+#define IO_REPARSE_TAG_HSM           0xC0000004
+#define IO_REPARSE_TAG_SIS           0x80000007
diff --git a/source3/include/smb.h b/source3/include/smb.h
index fc5c5032304..bba5d5cd521 100644
--- a/source3/include/smb.h
+++ b/source3/include/smb.h
@@ -243,6 +243,7 @@ typedef struct nttime_info
 /* SID Types */
 enum SID_NAME_USE
 {
+	SID_NAME_USE_NONE = 0,
 	SID_NAME_USER    = 1, /* user */
 	SID_NAME_DOM_GRP,     /* domain group */
 	SID_NAME_DOMAIN,      /* domain sid */
@@ -403,6 +404,7 @@ typedef struct files_struct
 	BOOL is_stat;
 	BOOL directory_delete_on_close;
 	char *fsp_name;
+ 	FAKE_FILE_HANDLE *fake_file_handle;
 } files_struct;
 
 #include "ntquotas.h"
diff --git a/source3/include/smbprofile.h b/source3/include/smbprofile.h
index e501de8c0e2..a64c2ce69ec 100644
--- a/source3/include/smbprofile.h
+++ b/source3/include/smbprofile.h
@@ -108,6 +108,10 @@ struct profile_stats {
 	unsigned syscall_mknod_time;
 	unsigned syscall_realpath_count;
 	unsigned syscall_realpath_time;
+	unsigned syscall_get_quota_count;
+	unsigned syscall_get_quota_time;
+	unsigned syscall_set_quota_count;
+	unsigned syscall_set_quota_time;
 /* stat cache counters */
 	unsigned statcache_lookups;
 	unsigned statcache_misses;
@@ -326,6 +330,10 @@ struct profile_stats {
 	unsigned NT_transact_rename_time;
 	unsigned NT_transact_query_security_desc_count;
 	unsigned NT_transact_query_security_desc_time;
+	unsigned NT_transact_get_user_quota_count;
+	unsigned NT_transact_get_user_quota_time;
+	unsigned NT_transact_set_user_quota_count;
+	unsigned NT_transact_set_user_quota_time;
 /* These are ACL manipulation calls */
 	unsigned get_nt_acl_count;
 	unsigned get_nt_acl_time;
diff --git a/source3/include/sysquotas.h b/source3/include/sysquotas.h
index 9513110a6ac..46a265ed179 100644
--- a/source3/include/sysquotas.h
+++ b/source3/include/sysquotas.h
@@ -1,26 +1,181 @@
 /* 
-   Unix SMB/CIFS implementation.
-   SYS QUOTA code constants
-   Copyright (C) Stefan (metze) Metzmacher	2003
-   
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-   
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-   
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    Unix SMB/CIFS implementation.
+    SYS QUOTA code constants
+    Copyright (C) Stefan (metze) Metzmacher	2003
+    
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+    
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+    
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
-
+ 
 #ifndef _SYSQUOTAS_H
 #define _SYSQUOTAS_H
+ 
+#ifdef HAVE_SYS_QUOTAS
+
+/* Sometimes we need this on linux for linux/quota.h */
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef HAVE_ASM_TYPES_H
+#include <asm/types.h>
+#endif
+
+/*
+ * This shouldn't be neccessary - it should be /usr/include/sys/quota.h
+ * Unfortunately, RH7.1 ships with a different quota system using struct mem_dqblk
+ * rather than the struct dqblk defined in /usr/include/sys/quota.h.
+ * This means we must include linux/quota.h to have a hope of working on
+ * RH7.1 systems. And it also means this breaks if the kernel is upgraded
+ * to a Linus 2.4.x (where x > the minor number shipped with RH7.1) until
+ * Linus synchronises with the AC patches. Sometimes I *hate* Linux :-). JRA.
+ */
+#ifdef HAVE_LINUX_QUOTA_H
+#include <linux/quota.h>
+#elif defined(HAVE_SYS_QUOTA_H)
+#include <sys/quota.h>
+#endif
+
+#if defined(HAVE_STRUCT_IF_DQBLK)
+# define SYS_DQBLK if_dqblk
+# define dqb_curblocks dqb_curspace/bsize
+#elif defined(HAVE_STRUCT_MEM_DQBLK)
+# define SYS_DQBLK mem_dqblk
+# define dqb_curblocks dqb_curspace/bsize
+#else /* STRUCT_DQBLK */
+# define SYS_DQBLK dqblk
+#endif
+
+#ifndef Q_SETQLIM
+#define Q_SETQLIM Q_SETQUOTA
+#endif
+
+/*********************************************
+ check for XFS QUOTA MANAGER 
+ *********************************************/
+/* on linux */
+#ifdef HAVE_LINUX_XQM_H
+# include <linux/xqm.h>
+# define HAVE_XFS_QUOTA
+#else
+# ifdef HAVE_XFS_XQM_H
+#  include <xfs/xqm.h>
+#  define HAVE_XFS_QUOTA
+# else
+#  ifdef HAVE_LINUX_DQBLK_XFS_H
+#   include <linux/dqblk_xfs.h>
+#   define HAVE_XFS_QUOTA
+#  endif 
+# endif
+#endif
+/* on IRIX */
+#ifdef Q_XGETQUOTA
+# ifndef HAVE_XFS_QUOTA
+#  define HAVE_XFS_QUOTA
+#  ifndef Q_XQUOTAON
+#   define Q_XQUOTAON Q_QUOTAON
+#  endif /* Q_XQUOTAON */
+#  ifndef Q_XQUOTAOFF
+#   define Q_XQUOTAOFF Q_QUOTAOFF
+#  endif /* Q_XQUOTAOFF */
+#  ifndef Q_XGETQSTAT
+#   define Q_XGETQSTAT Q_GETQSTAT
+#  endif /* Q_XGETQSTAT */
+# endif /* HAVE_XFS_QUOTA */
+#endif /* Q_XGETQUOTA */
+
+#ifdef HAVE_XFS_QUOTA
+/* Linux has BBSIZE in <linux/xfs_fs.h>
+ * or <xfs/xfs_fs.h>
+ * IRIX has BBSIZE in <sys/param.h>
+ */
+#ifdef HAVE_LINUX_XFS_FS_H
+#include <linux/xfs_fs.h>
+#elif defined(HAVE_XFS_XFS_FS_H)
+#include <xfs/xfs_fs.h>
+#endif /* *_XFS_FS_H */
+
+#ifndef BBSHIFT
+#define	BBSHIFT		9
+#endif /* BBSHIFT */
+#ifndef BBSIZE
+#define	BBSIZE		(1<<BBSHIFT)
+#endif /* BBSIZE */
+
+#endif /* HAVE_XFS_QUOTA */
+
+#ifdef LINUX
+# ifndef QUOTABLOCK_SIZE
+#  define QUOTABLOCK_SIZE 1024
+# endif
+/* end LINUX */
+#elif defined(IRIX6)
+# ifndef QUOTABLOCK_SIZE
+#  define QUOTABLOCK_SIZE BBSIZE
+# endif
+/* end IRIX6 */
+#else /* HPUP,... */
+# ifndef QUOTABLOCK_SIZE
+#  define QUOTABLOCK_SIZE DEV_BSIZE
+# endif
+#endif /* HPUP,... */
+
+#if !defined(QUOTAFILENAME) && defined(QFILENAME)
+#define QUOTAFILENAME QFILENAME
+#endif
+
+#ifdef INITQFNAMES
+#define USERQUOTAFILE_EXTENSION ".user"
+#else
+#define USERQUOTAFILE_EXTENSION ""
+#endif
+
+/* this check should be before the QCMD fake! */
+#if defined(QCMD)&&defined(GRPQUOTA)
+#define HAVE_GROUP_QUOTA
+#endif
+
+/* on some systems we have to fake this up ...*/
+#ifndef QCMD
+#define QCMD(cmd,type)	(cmd)
+#endif /* QCMD */
+
+
+#ifdef HAVE_DQB_FSOFTLIMIT
+#define dqb_isoftlimit	dqb_fsoftlimit
+#define dqb_ihardlimit	dqb_fhardlimit
+#define dqb_curinodes	dqb_curfiles
+#endif
+
+/* maybe we can add a configure test for HAVE_CADDR_T,
+ * but it's not needed
+ */
+#ifdef HAVE_CADDR_T
+#define CADDR_T caddr_t
+#else /* CADDR_T */
+#define CADDR_T void*
+#endif /* CADDR_T */
+
+#if defined(HAVE_MNTENT_H)&&defined(HAVE_SETMNTENT)&&defined(HAVE_GETMNTENT)&&defined(HAVE_ENDMNTENT)
+#include <mntent.h>
+#define HAVE_MNTENT 1
+/*#endif defined(HAVE_MNTENT_H)&&defined(HAVE_SETMNTENT)&&defined(HAVE_GETMNTENT)&&defined(HAVE_ENDMNTENT) */
+#elif defined(HAVE_DEVNM_H)&&defined(HAVE_DEVNM)
+#include <devnm.h>
+#endif /* defined(HAVE_DEVNM_H)&&defined(HAVE_DEVNM) */
 
+#endif /* HAVE_SYS_QUOTAS */
 
 /**************************************************
  Some stuff for the sys_quota api.