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authorYang Lin <lin.a.yang@intel.com>2012-05-30 19:43:21 +0800
committerYang Lin <lin.a.yang@intel.com>2012-05-30 19:43:21 +0800
commit8c82de96cd23e4823a2d29eb2de2295c0866b0c9 (patch)
tree4c255e87442eb17f710f1674e13303ff56be0c7a /quotaio_v2.h
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Initial commit to Gerrittizen/20120530.11.0_branch1.0
Diffstat (limited to 'quotaio_v2.h')
-rw-r--r--quotaio_v2.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/quotaio_v2.h b/quotaio_v2.h
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+++ b/quotaio_v2.h
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+/*
+ *
+ * Header file for disk format of new quotafile format
+ *
+ */
+
+#ifndef GUARD_QUOTAIO_V2_H
+#define GUARD_QUOTAIO_V2_H
+
+#include <sys/types.h>
+#include "quota.h"
+
+#define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */
+#define INIT_V2_VERSIONS { 1, 1}
+
+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 quota for one user on disk */
+struct v2r0_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));
+
+struct v2r1_disk_dqblk {
+ u_int32_t dqb_id; /* id this quota applies to */
+ u_int32_t dqb_pad;
+ u_int64_t dqb_ihardlimit; /* absolute limit on allocated inodes */
+ u_int64_t dqb_isoftlimit; /* preferred inode limit */
+ u_int64_t dqb_curinodes; /* current # allocated inodes */
+ u_int64_t dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */
+ u_int64_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 (obsolete) */
+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;
+};
+
+#endif