/*
* Copy dquot from disk to memory
*/
+static void v2r0_disk2memdqblk(struct dquot *dquot, void *dp)
+{
+ struct util_dqblk *m = &dquot->dq_dqb;
+ struct v2r0_disk_dqblk *d = dp, empty;
+
+ dquot->dq_id = ext2fs_le32_to_cpu(d->dqb_id);
+ m->dqb_ihardlimit = ext2fs_le32_to_cpu(d->dqb_ihardlimit);
+ m->dqb_isoftlimit = ext2fs_le32_to_cpu(d->dqb_isoftlimit);
+ m->dqb_bhardlimit = ext2fs_le32_to_cpu(d->dqb_bhardlimit);
+ m->dqb_bsoftlimit = ext2fs_le32_to_cpu(d->dqb_bsoftlimit);
+ m->dqb_curinodes = ext2fs_le32_to_cpu(d->dqb_curinodes);
+ m->dqb_curspace = ext2fs_le64_to_cpu(d->dqb_curspace);
+ m->dqb_itime = ext2fs_le64_to_cpu(d->dqb_itime);
+ m->dqb_btime = ext2fs_le64_to_cpu(d->dqb_btime);
+
+ memset(&empty, 0, sizeof(struct v2r0_disk_dqblk));
+ empty.dqb_itime = ext2fs_cpu_to_le64(1);
+ if (!memcmp(&empty, dp, sizeof(struct v2r0_disk_dqblk)))
+ m->dqb_itime = 0;
+}
+
+/*
+ * Copy dquot from memory to disk
+ */
+static void v2r0_mem2diskdqblk(void *dp, struct dquot *dquot)
+{
+ struct util_dqblk *m = &dquot->dq_dqb;
+ struct v2r0_disk_dqblk *d = dp;
+
+ d->dqb_ihardlimit = ext2fs_cpu_to_le32(m->dqb_ihardlimit);
+ d->dqb_isoftlimit = ext2fs_cpu_to_le32(m->dqb_isoftlimit);
+ d->dqb_bhardlimit = ext2fs_cpu_to_le32(m->dqb_bhardlimit);
+ d->dqb_bsoftlimit = ext2fs_cpu_to_le32(m->dqb_bsoftlimit);
+ d->dqb_curinodes = ext2fs_cpu_to_le32(m->dqb_curinodes);
+ d->dqb_curspace = ext2fs_cpu_to_le64(m->dqb_curspace);
+ d->dqb_itime = ext2fs_cpu_to_le64(m->dqb_itime);
+ d->dqb_btime = ext2fs_cpu_to_le64(m->dqb_btime);
+ d->dqb_id = ext2fs_cpu_to_le32(dquot->dq_id);
+ if (qtree_entry_unused(&dquot->dq_h->qh_info.u.v2_mdqi.dqi_qtree, dp))
+ d->dqb_itime = ext2fs_cpu_to_le64(1);
+}
+
+static int v2r0_is_id(void *dp, struct dquot *dquot)
+{
+ struct v2r0_disk_dqblk *d = dp;
+ struct qtree_mem_dqinfo *info =
+ &dquot->dq_h->qh_info.u.v2_mdqi.dqi_qtree;
+
+ if (qtree_entry_unused(info, dp))
+ return 0;
+ return ext2fs_le32_to_cpu(d->dqb_id) == dquot->dq_id;
+}
+
+static struct qtree_fmt_operations v2r0_fmt_ops = {
+ .mem2disk_dqblk = v2r0_mem2diskdqblk,
+ .disk2mem_dqblk = v2r0_disk2memdqblk,
+ .is_id = v2r0_is_id,
+};
+
+/*
+ * Copy dquot from disk to memory
+ */
static void v2r1_disk2memdqblk(struct dquot *dquot, void *dp)
{
struct util_dqblk *m = &dquot->dq_dqb;
log_err("Your quota file is stored in wrong endianity");
return 0;
}
- if (V2_VERSION != ext2fs_le32_to_cpu(dqh.dqh_version))
+ if (V2_VERSION_R0 != ext2fs_le32_to_cpu(dqh.dqh_version) &&
+ V2_VERSION_R1 != ext2fs_le32_to_cpu(dqh.dqh_version))
return 0;
return 1;
}
*/
static int v2_init_io(struct quota_handle *h)
{
+ struct v2_disk_dqheader dqh;
struct v2_disk_dqinfo ddqinfo;
struct v2_mem_dqinfo *info;
__u64 filesize;
+ int version;
- h->qh_info.u.v2_mdqi.dqi_qtree.dqi_entry_size =
- sizeof(struct v2r1_disk_dqblk);
- h->qh_info.u.v2_mdqi.dqi_qtree.dqi_ops = &v2r1_fmt_ops;
+ if (!v2_read_header(h, &dqh))
+ return -1;
+ version = ext2fs_le32_to_cpu(dqh.dqh_version);
+
+ if (version == V2_VERSION_R0) {
+ h->qh_info.u.v2_mdqi.dqi_qtree.dqi_entry_size =
+ sizeof(struct v2r0_disk_dqblk);
+ h->qh_info.u.v2_mdqi.dqi_qtree.dqi_ops = &v2r0_fmt_ops;
+ } else {
+ h->qh_info.u.v2_mdqi.dqi_qtree.dqi_entry_size =
+ sizeof(struct v2r1_disk_dqblk);
+ h->qh_info.u.v2_mdqi.dqi_qtree.dqi_ops = &v2r1_fmt_ops;
+ }
/* Read information about quotafile */
if (h->e2fs_read(&h->qh_qf, V2_DQINFOOFF, &ddqinfo,
/* Write basic quota header */
ddqheader.dqh_magic = ext2fs_cpu_to_le32(file_magics[h->qh_type]);
- ddqheader.dqh_version = ext2fs_cpu_to_le32(V2_VERSION);
+ ddqheader.dqh_version = ext2fs_cpu_to_le32(V2_VERSION_R1);
if (h->e2fs_write(&h->qh_qf, 0, &ddqheader, sizeof(ddqheader)) !=
sizeof(ddqheader))
return -1;
/* Offset of info header in file */
#define V2_DQINFOOFF sizeof(struct v2_disk_dqheader)
/* Supported version of quota-tree format */
-#define V2_VERSION 1
+#define V2_VERSION_R1 1
+#define V2_VERSION_R0 0
struct v2_disk_dqheader {
__le32 dqh_magic; /* Magic number identifying file */
* free entry */
} __attribute__ ((packed));
+struct v2r0_disk_dqblk {
+ __le32 dqb_id; /* id this quota applies to */
+ __le32 dqb_ihardlimit; /* absolute limit on allocated inodes */
+ __le32 dqb_isoftlimit; /* preferred inode limit */
+ __le32 dqb_curinodes; /* current # allocated inodes */
+ __le32 dqb_bhardlimit; /* absolute limit on disk space
+ * (in QUOTABLOCK_SIZE) */
+ __le32 dqb_bsoftlimit; /* preferred limit on disk space
+ * (in QUOTABLOCK_SIZE) */
+ __le64 dqb_curspace; /* current space occupied (in bytes) */
+ __le64 dqb_btime; /* time limit for excessive disk use */
+ __le64 dqb_itime; /* time limit for excessive inode use */
+} __attribute__ ((packed));
+
struct v2r1_disk_dqblk {
__le32 dqb_id; /* id this quota applies to */
__le32 dqb_pad;