sync HEAD with recent changes in 3.0

(This used to be commit c98399e3c9d74e19b7c9d806ca8028b48866931e)

1 files changed, 336 insertions, 0 deletions

diff --git a/source3/include/samba_linux_quota.h b/source3/include/samba_linux_quota.h
new file mode 100644
index 0000000000..02b3e5169b
--- /dev/null
+++ b/source3/include/samba_linux_quota.h
@@ -0,0 +1,336 @@
+#ifndef _SAMBA_LINUX_QUOTA_H_
+#define _SAMBA_LINUX_QUOTA_H_
+/*
+   Unix SMB/CIFS implementation.
+   Copyright (C) Andrew Tridgell 1994-2002
+
+   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.
+*/
+
+/*
+	This file is needed because Quota support on Linux has
+	been broken since Linus kernel 2.4.x. It will only get
+	better (and this file be removed) when all the distributions
+	ship a glibc with a working quota.h file. This is very
+	bad. JRA.
+
+	Original file came from Christoph Hellwig <hch@infradead.org>.
+	Massaged into one nasty include file (to stop us having to
+	add multiple files into Samba just for Linux braindamage)
+	by JRA.
+*/
+
+#undef QUOTABLOCK_SIZE
+
+#ifndef _QUOTAIO_LINUX_V1
+#define _QUOTAIO_LINUX_V1
+
+/*
+ *	Headerfile for old quotafile format
+ */
+
+#include <sys/types.h>
+
+#define V1_DQBLK_SIZE_BITS 10
+#define V1_DQBLK_SIZE (1 << V1_DQBLK_SIZE_BITS)	/* Size of one quota block in bytes in old format */
+
+#define V1_DQOFF(__id) ((loff_t) ((__id) * sizeof(struct v1_disk_dqblk)))
+
+/* Structure of quota on disk */
+struct v1_disk_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 limit on inodes */
+	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 */
+} __attribute__ ((packed));
+
+/* Structure used for communication with kernel */
+struct v1_kern_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 */
+};
+
+struct v1_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 allocated_dquots;
+	u_int32_t free_dquots;
+	u_int32_t syncs;
+};                                                                               
+
+#ifndef Q_V1_GETQUOTA
+#define Q_V1_GETQUOTA  0x300
+#endif
+#ifndef Q_V1_SETQUOTA
+#define Q_V1_SETQUOTA  0x400
+#endif
+
+#endif /* _QUOTAIO_LINUX_V1 */
+
+/*
+ *
+ *	Header file for disk format of new quotafile format
+ *
+ */
+
+#ifndef _QUOTAIO_LINUX_V2
+#define _QUOTAIO_LINUX_V2
+
+#include <sys/types.h>
+
+#ifndef _QUOTA_LINUX
+#define _QUOTA_LINUX
+
+#include <sys/types.h>
+
+typedef u_int32_t qid_t;	/* Type in which we store ids in memory */
+typedef u_int64_t qsize_t;	/* Type in which we store size limitations */
+
+#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", \
+}
+
+/*
+ * Definitions of magics and versions of current quota files
+ */
+#define INITQMAGICS {\
+	0xd9c01f11,	/* USRQUOTA */\
+	0xd9c01927	/* GRPQUOTA */\
+}
+
+/* Size of blocks in which are counted size limits in generic utility parts */
+#define QUOTABLOCK_BITS 10
+#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
+
+/* Conversion routines from and to quota blocks */
+#define qb2kb(x) ((x) << (QUOTABLOCK_BITS-10))
+#define kb2qb(x) ((x) >> (QUOTABLOCK_BITS-10))
+#define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
+
+/*
+ * 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))
+
+#define Q_6_5_QUOTAON  0x0100	/* enable quotas */
+#define Q_6_5_QUOTAOFF 0x0200	/* disable quotas */
+#define Q_6_5_SYNC     0x0600	/* sync disk copy of a filesystems quotas */
+
+#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 */
+
+/*
+ * Quota structure used for communication with userspace via quotactl
+ * Following flags are used to specify which fields 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 if_dqblk {
+	u_int64_t dqb_bhardlimit;
+	u_int64_t dqb_bsoftlimit;
+	u_int64_t dqb_curspace;
+	u_int64_t dqb_ihardlimit;
+	u_int64_t dqb_isoftlimit;
+	u_int64_t dqb_curinodes;
+	u_int64_t dqb_btime;
+	u_int64_t dqb_itime;
+	u_int32_t dqb_valid;
+};
+
+/*
+ * Structure used for setting quota information about file via quotactl
+ * Following flags are used to specify which fields are valid
+ */
+#define IIF_BGRACE	1
+#define IIF_IGRACE	2
+#define IIF_FLAGS	4
+#define IIF_ALL		(IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
+
+struct if_dqinfo {
+	u_int64_t dqi_bgrace;
+	u_int64_t dqi_igrace;
+	u_int32_t dqi_flags;
+	u_int32_t dqi_valid;
+};
+
+/* Quota format identifiers */
+#define QFMT_VFS_OLD 1
+#define QFMT_VFS_V0  2
+
+/* Flags supported by kernel */
+#define V1_DQF_RSQUASH 1
+
+/* Ioctl for getting quota size */
+#include <sys/ioctl.h>
+#ifndef FIOQSIZE
+	#if defined(__alpha__) || defined(__powerpc__) || defined(__sh__) || defined(__sparc__) || defined(__sparc64__)
+		#define FIOQSIZE _IOR('f', 128, loff_t)
+	#elif defined(__arm__) || defined(__mc68000__) || defined(__s390__)
+		#define FIOQSIZE 0x545E
+        #elif defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__ia64__) || defined(__parisc__) || defined(__cris__) || defined(__hppa__)
+		#define FIOQSIZE 0x5460
+	#elif defined(__mips__) || defined(__mips64__)
+		#define FIOQSIZE 0x6667
+	#endif
+#endif
+
+long quotactl __P((int, const char *, qid_t, caddr_t));
+
+#endif /* _QUOTA_LINUX */
+
+#define V2_DQINFOOFF	sizeof(struct v2_disk_dqheader)	/* Offset of info header in file */
+#define V2_DQBLKSIZE_BITS	10
+#define V2_DQBLKSIZE	(1 << V2_DQBLKSIZE_BITS)	/* Size of block with quota structures */
+#define V2_DQTREEOFF	1	/* Offset of tree in file in blOcks */
+#define V2_DQTREEDEPTH	4	/* Depth of quota tree */
+#define V2_DQSTRINBLK	((V2_DQBLKSIZE - sizeof(struct v2_disk_dqdbheader)) / sizeof(struct v2_disk_dqblk))	/* Number of entries in one blocks */
+#define V2_GETIDINDEX(id, depth) (((id) >> ((V2_DQTREEDEPTH-(depth)-1)*8)) & 0xff)
+#define V2_GETENTRIES(buf) ((struct v2_disk_dqblk *)(((char *)(buf)) + sizeof(struct v2_disk_dqdbheader)))
+#define INIT_V2_VERSIONS { 0, 0}
+
+struct v2_disk_dqheader {
+	u_int32_t dqh_magic;	/* Magic number identifying file */
+	u_int32_t dqh_version;	/* File version */
+} __attribute__ ((packed));
+
+/* Flags for version specific files */
+#define V2_DQF_MASK  0x0000	/* Mask for all valid ondisk flags */
+
+/* Header with type and version specific information */
+struct v2_disk_dqinfo {
+	u_int32_t dqi_bgrace;	/* Time before block soft limit becomes hard limit */
+	u_int32_t dqi_igrace;	/* Time before inode soft limit becomes hard limit */
+	u_int32_t dqi_flags;	/* Flags for quotafile (DQF_*) */
+	u_int32_t dqi_blocks;	/* Number of blocks in file */
+	u_int32_t dqi_free_blk;	/* Number of first free block in the list */
+	u_int32_t dqi_free_entry;	/* Number of block with at least one free entry */
+} __attribute__ ((packed));
+
+/*
+ *  Structure of header of block with quota structures. It is padded to 16 bytes so
+ *  there will be space for exactly 18 quota-entries in a block
+ */
+struct v2_disk_dqdbheader {
+	u_int32_t dqdh_next_free;	/* Number of next block with free entry */
+	u_int32_t dqdh_prev_free;	/* Number of previous block with free entry */
+	u_int16_t dqdh_entries;	/* Number of valid entries in block */
+	u_int16_t dqdh_pad1;
+	u_int32_t dqdh_pad2;
+} __attribute__ ((packed));
+
+/* Structure of quota for one user on disk */
+struct v2_disk_dqblk {
+	u_int32_t dqb_id;	/* id this quota applies to */
+	u_int32_t dqb_ihardlimit;	/* absolute limit on allocated inodes */
+	u_int32_t dqb_isoftlimit;	/* preferred inode limit */
+	u_int32_t dqb_curinodes;	/* current # allocated inodes */
+	u_int32_t dqb_bhardlimit;	/* absolute limit on disk space (in QUOTABLOCK_SIZE) */
+	u_int32_t dqb_bsoftlimit;	/* preferred limit on disk space (in QUOTABLOCK_SIZE) */
+	u_int64_t dqb_curspace;	/* current space occupied (in bytes) */
+	u_int64_t dqb_btime;	/* time limit for excessive disk use */
+	u_int64_t dqb_itime;	/* time limit for excessive inode use */
+} __attribute__ ((packed));
+
+/* Structure of quota for communication with kernel */
+struct v2_kern_dqblk {
+	unsigned int dqb_ihardlimit;
+	unsigned int dqb_isoftlimit;
+	unsigned int dqb_curinodes;
+	unsigned int dqb_bhardlimit;
+	unsigned int dqb_bsoftlimit;
+	qsize_t dqb_curspace;
+	time_t dqb_btime;
+	time_t dqb_itime;
+};
+
+/* Structure of quotafile info for communication with kernel */
+struct v2_kern_dqinfo {
+	unsigned int dqi_bgrace;
+	unsigned int dqi_igrace;
+	unsigned int dqi_flags;
+	unsigned int dqi_blocks;
+	unsigned int dqi_free_blk;
+	unsigned int dqi_free_entry;
+};
+
+/* Structure with gathered statistics from kernel */
+struct v2_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 allocated_dquots;
+	u_int32_t free_dquots;
+	u_int32_t syncs;
+	u_int32_t version;
+};
+
+#ifndef Q_V2_GETQUOTA
+#define Q_V2_GETQUOTA  0x0D00
+#endif
+#ifndef Q_V2_SETQUOTA
+#define Q_V2_SETQUOTA  0x0E00
+#endif
+
+#endif /* _QUOTAIO_LINUX_V2 */
+
+#ifndef QUOTABLOCK_SIZE
+#define QUOTABLOCK_SIZE        1024
+#endif
+
+#endif /* _SAMBA_LINUX_QUOTA_H_ */