[PATCH] <sys/quota.h> changes for current quotactl

[Jakub Jelinek <jakub at redhat dot com>]

Hi!

2.4.22+ as well as all 2.6.xx kernels contain a different set of operations
for quotactl and the associated structures etc.
Unfortunately the names of quotactl(2) commands etc. remained the same.

This patch solves this by providing both incompatible interfaces in
<sys/quota.h>, with the new one being the default and
with -D_LINUX_QUOTA_VERSION=1 that will provide the old interface.

2005-06-20  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/sys/quota.h: Add definitions and types for
	_LINUX_QUOTA_VERSION >= 2.
	(_LINUX_QUOTA_VERSION): Define if not yet defined.

--- libc/sysdeps/unix/sysv/linux/sys/quota.h.jj	1999-10-19 05:05:21.000000000 +0200
+++ libc/sysdeps/unix/sysv/linux/sys/quota.h	2005-06-20 13:26:35.000000000 +0200
@@ -41,6 +41,14 @@
 #include <sys/types.h>
 
 /*
+ * 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
+
+/*
  * Convert diskblocks to blocks and the other way around.
  * currently only to fool the BSD source. :-)
  */
@@ -94,21 +102,33 @@
 #define SUBCMDSHIFT 8
 #define QCMD(cmd, type)  (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
 
-#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 */
+#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 */
@@ -120,13 +140,45 @@ struct dqblk
     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
-#define	dq_curblocks	dq_dqb.dqb_curblocks
+#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
@@ -135,6 +187,7 @@ struct dqblk
 
 #define dqoff(UID)      ((loff_t)((UID) * sizeof (struct dqblk)))
 
+#if _LINUX_QUOTA_VERSION < 2
 struct dqstats
   {
     u_int32_t lookups;
@@ -147,6 +200,22 @@ struct dqstats
     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
 

	Jakub