// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#ifndef __XFS_QUOTA_DEFS_H__
#define __XFS_QUOTA_DEFS_H__
/*
* Quota definitions shared between user and kernel source trees.
*/
/*
* Even though users may not have quota limits occupying all 64-bits,
* they may need 64-bit accounting. Hence, 64-bit quota-counters,
* and quota-limits. This is a waste in the common case, but hey ...
*/
typedef uint64_t xfs_qcnt_t;
typedef uint8_t xfs_dqtype_t;
#define XFS_DQTYPE_STRINGS \
{ XFS_DQTYPE_USER, "USER" }, \
{ XFS_DQTYPE_PROJ, "PROJ" }, \
{ XFS_DQTYPE_GROUP, "GROUP" }, \
{ XFS_DQTYPE_BIGTIME, "BIGTIME" }
/*
* flags for q_flags field in the dquot.
*/
#define XFS_DQFLAG_DIRTY (1u << 0) /* dquot is dirty */
#define XFS_DQFLAG_FREEING (1u << 1) /* dquot is being torn down */
#define XFS_DQFLAG_STRINGS \
{ XFS_DQFLAG_DIRTY, "DIRTY" }, \
{ XFS_DQFLAG_FREEING, "FREEING" }
/*
* We have the possibility of all three quota types being active at once, and
* hence free space modification requires modification of all three current
* dquots in a single transaction. For this case we need to have a reservation
* of at least 3 dquots.
*
* However, a chmod operation can change both UID and GID in a single
* transaction, resulting in requiring {old, new} x {uid, gid} dquots to be
* modified. Hence for this case we need to reserve space for at least 4 dquots.
*
* And in the worst case, there's a rename operation that can be modifying up to
* 4 inodes with dquots attached to them. In reality, the only inodes that can
* have their dquots modified are the source and destination directory inodes
* due to directory name creation and removal. That can require space allocation
* and/or freeing on both directory inodes, and hence all three dquots on each
* inode can be modified. And if the directories are world writeable, all the
* dquots can be unique and so 6 dquots can be modified....
*
* And, of course, we also need to take into account the dquot log format item
* used to describe each dquot.
*/
#define XFS_DQUOT_LOGRES \
((sizeof(struct xfs_dq_logformat) + sizeof(struct xfs_disk_dquot)) * 6)
#define XFS_IS_QUOTA_ON(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
#define XFS_IS_UQUOTA_ON(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT)
#define XFS_IS_PQUOTA_ON(mp) ((mp)->m_qflags & XFS_PQUOTA_ACCT)
#define XFS_IS_GQUOTA_ON(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)
#define XFS_IS_UQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_UQUOTA_ENFD)
#define XFS_IS_GQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_GQUOTA_ENFD)
#define XFS_IS_PQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_PQUOTA_ENFD)
/*
* Flags to tell various functions what to do. Not all of these are meaningful
* to a single function. None of these XFS_QMOPT_* flags are meant to have
* persistent values (ie. their values can and will change between versions)
*/
#define XFS_QMOPT_UQUOTA (1u << 0) /* user dquot requested */
#define XFS_QMOPT_GQUOTA (1u << 1) /* group dquot requested */
#define XFS_QMOPT_PQUOTA (1u << 2) /* project dquot requested */
#define XFS_QMOPT_FORCE_RES (1u << 3) /* ignore quota limits */
#define XFS_QMOPT_SBVERSION (1u << 4) /* change superblock version num */
/*
* flags to xfs_trans_mod_dquot to indicate which field needs to be
* modified.
*/
#define XFS_QMOPT_RES_REGBLKS (1u << 7)
#define XFS_QMOPT_RES_RTBLKS (1u << 8)
#define XFS_QMOPT_BCOUNT (1u << 9)
#define XFS_QMOPT_ICOUNT (1u << 10)
#define XFS_QMOPT_RTBCOUNT (1u << 11)
#define XFS_QMOPT_DELBCOUNT (1u << 12)
#define XFS_QMOPT_DELRTBCOUNT (1u << 13)
#define XFS_QMOPT_RES_INOS (1u << 14)
/*
* flags for dqalloc.
*/
#define XFS_QMOPT_INHERIT (1u << 31)
#define XFS_QMOPT_FLAGS \
{ XFS_QMOPT_UQUOTA, "UQUOTA" }, \
{ XFS_QMOPT_PQUOTA, "PQUOTA" }, \
{ XFS_QMOPT_FORCE_RES, "FORCE_RES" }, \
{ XFS_QMOPT_SBVERSION, "SBVERSION" }, \
{ XFS_QMOPT_GQUOTA, "GQUOTA" }, \
{ XFS_QMOPT_INHERIT, "INHERIT" }, \
{ XFS_QMOPT_RES_REGBLKS, "RES_REGBLKS" }, \
{ XFS_QMOPT_RES_RTBLKS, "RES_RTBLKS" }, \
{ XFS_QMOPT_BCOUNT, "BCOUNT" }, \
{ XFS_QMOPT_ICOUNT, "ICOUNT" }, \
{ XFS_QMOPT_RTBCOUNT, "RTBCOUNT" }, \
{ XFS_QMOPT_DELBCOUNT, "DELBCOUNT" }, \
{ XFS_QMOPT_DELRTBCOUNT, "DELRTBCOUNT" }, \
{ XFS_QMOPT_RES_INOS, "RES_INOS" }
/*
* flags to xfs_trans_mod_dquot.
*/
#define XFS_TRANS_DQ_RES_BLKS XFS_QMOPT_RES_REGBLKS
#define XFS_TRANS_DQ_RES_RTBLKS XFS_QMOPT_RES_RTBLKS
#define XFS_TRANS_DQ_RES_INOS XFS_QMOPT_RES_INOS
#define XFS_TRANS_DQ_BCOUNT XFS_QMOPT_BCOUNT
#define XFS_TRANS_DQ_DELBCOUNT XFS_QMOPT_DELBCOUNT
#define XFS_TRANS_DQ_ICOUNT XFS_QMOPT_ICOUNT
#define XFS_TRANS_DQ_RTBCOUNT XFS_QMOPT_RTBCOUNT
#define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT
#define XFS_QMOPT_QUOTALL \
(XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA)
#define XFS_QMOPT_RESBLK_MASK (XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)
extern xfs_failaddr_t xfs_dquot_verify(struct xfs_mount *mp,
struct xfs_disk_dquot *ddq, xfs_dqid_t id);
extern xfs_failaddr_t xfs_dqblk_verify(struct xfs_mount *mp,
struct xfs_dqblk *dqb, xfs_dqid_t id);
extern int xfs_calc_dquots_per_chunk(unsigned int nbblks);
extern void xfs_dqblk_repair(struct xfs_mount *mp, struct xfs_dqblk *dqb,
xfs_dqid_t id, xfs_dqtype_t type);
struct xfs_dquot;
time64_t xfs_dquot_from_disk_ts(struct xfs_disk_dquot *ddq,
__be32 dtimer);
__be32 xfs_dquot_to_disk_ts(struct xfs_dquot *ddq, time64_t timer);
#endif /* __XFS_QUOTA_H__ */
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