Update to latest version of quota.4.01upstream

Change-Id: I2271f01ae7877d43dde2432a45b49b910ddb6f8f
Signed-off-by: Ossama Othman <ossama.othman@intel.com>

1 files changed, 68 insertions, 37 deletions

diff --git a/quotaio.c b/quotaio.c
index e857328..d3c7cb6 100644
--- a/quotaio.c
+++ b/quotaio.c
@@ -37,18 +37,16 @@ struct disk_dqheader {
 /*
  *	Detect quota format and initialize quota IO
  */
-struct quota_handle *init_io(struct mntent *mnt, int type, int fmt, int flags)
+struct quota_handle *init_io(struct mount_entry *mnt, int type, int fmt, int flags)
 {
 	char *qfname = NULL;
 	int fd = -1, kernfmt;
 	struct quota_handle *h = smalloc(sizeof(struct quota_handle));
-	const char *mnt_fsname = NULL;
+	int nameflag;
 
-	if (!hasquota(mnt, type, 0))
+	if (!me_hasquota(mnt, type))
 		goto out_handle;
-	if (!(mnt_fsname = get_device_name(mnt->mnt_fsname)))
-		goto out_handle;
-	if (stat(mnt_fsname, &h->qh_stat) < 0)
+	if (stat(mnt->me_devname, &h->qh_stat) < 0)
 		memset(&h->qh_stat, 0, sizeof(struct stat));
 	h->qh_io_flags = 0;
 	if (flags & IOI_READONLY)
@@ -56,10 +54,10 @@ struct quota_handle *init_io(struct mntent *mnt, int type, int fmt, int flags)
 	if (flags & IOI_NFS_MIXED_PATHS)
 		h->qh_io_flags |= IOFL_NFS_MIXED_PATHS;
 	h->qh_type = type;
-	sstrncpy(h->qh_quotadev, mnt_fsname, sizeof(h->qh_quotadev));
-	free((char *)mnt_fsname);
-	sstrncpy(h->qh_fstype, mnt->mnt_type, MAX_FSTYPE_LEN);
-	if (nfs_fstype(mnt->mnt_type)) {	/* NFS filesystem? */
+	sstrncpy(h->qh_quotadev, mnt->me_devname, sizeof(h->qh_quotadev));
+	sstrncpy(h->qh_fstype, mnt->me_type, MAX_FSTYPE_LEN);
+	sstrncpy(h->qh_dir, mnt->me_dir, PATH_MAX);
+	if (nfs_fstype(mnt->me_type)) {	/* NFS filesystem? */
 		if (fmt != -1 && fmt != QF_RPC) {	/* User wanted some other format? */
 			errstr(_("Only RPC quota format is allowed on NFS filesystem.\n"));
 			goto out_handle;
@@ -68,6 +66,8 @@ struct quota_handle *init_io(struct mntent *mnt, int type, int fmt, int flags)
 		h->qh_fd = -1;
 		h->qh_fmt = QF_RPC;
 		h->qh_ops = &quotafile_ops_rpc;
+		memset(&h->qh_info, 0, sizeof(h->qh_info));
+		h->qh_ops->init_io(h);
 		return h;
 #else
 		errstr(_("RPC quota format not compiled.\n"));
@@ -78,7 +78,8 @@ struct quota_handle *init_io(struct mntent *mnt, int type, int fmt, int flags)
 		goto out_handle;
 	}
 
-	if (!strcmp(mnt->mnt_type, MNTTYPE_XFS)) {	/* XFS filesystem? */
+	if (!strcmp(mnt->me_type, MNTTYPE_XFS) ||	/* XFS filesystem? */
+	    !strcmp(mnt->me_type, MNTTYPE_GFS2)) {	/* XFS filesystem? */
 		if (fmt != -1 && fmt != QF_XFS) {	/* User wanted some other format? */
 			errstr(_("Only XFS quota format is allowed on XFS filesystem.\n"));
 			goto out_handle;
@@ -96,56 +97,54 @@ struct quota_handle *init_io(struct mntent *mnt, int type, int fmt, int flags)
 	}
 	if (kern_qfmt_supp(fmt)) {	/* Quota compiled and desired format available? */
 		/* Quota turned on? */
-		kernfmt = kern_quota_on(h->qh_quotadev, type, fmt);
+		kernfmt = kern_quota_on(mnt, type, fmt);
 		if (kernfmt >= 0) {
 			h->qh_io_flags |= IOFL_QUOTAON;
 			fmt = kernfmt;	/* Default is kernel used format */
 		}
 	}
 
-	if (meta_qf_fstype(mnt->mnt_type)) {
+	if (meta_qf_fstype(mnt->me_type) || mnt->me_qfmt[type] == QF_META) {
 		if (!QIO_ENABLED(h)) {
 			errstr(_("Quota not supported by the filesystem.\n"));
 			goto out_handle;
 		}
-		if (flags & IOI_OPENFILE) {
-			errstr(_("Operation not supported for filesystems with hidden quota files!\n"));
-			goto out_handle;
-		}
 		h->qh_fd = -1;
 		h->qh_fmt = fmt;
 		goto set_ops;
 	}
 
+	nameflag = (!QIO_ENABLED(h) || flags & IOI_INITSCAN) ? NF_FORMAT : 0;
 	if (fmt == -1) {
 		/* Let's try any VFSv0 quota format... */
-		if (get_qf_name(mnt, type, QF_VFSV0,
-				(!QIO_ENABLED(h) || flags & IOI_OPENFILE) ? NF_FORMAT : 0,
-			  	&qfname) >= 0)
+		if (get_qf_name(mnt, type, QF_VFSV0, nameflag, &qfname) >= 0)
 			fmt = QF_VFSV0;
 		/* And then VFSv1 quota format... */
-		else if (get_qf_name(mnt, type, QF_VFSV1,
-				(!QIO_ENABLED(h) || flags & IOI_OPENFILE) ? NF_FORMAT : 0,
-			  	&qfname) >= 0)
+		else if (get_qf_name(mnt, type, QF_VFSV1, nameflag, &qfname) >= 0)
 			fmt = QF_VFSV1;
 		/* And then old quota format... */
-		else if (get_qf_name(mnt, type, QF_VFSOLD,
-                                (!QIO_ENABLED(h) || flags & IOI_OPENFILE) ? NF_FORMAT : 0,
-                                &qfname) >= 0)
+		else if (get_qf_name(mnt, type, QF_VFSOLD, nameflag, &qfname) >= 0)
 			fmt = QF_VFSOLD;
 		else {	/* Don't know... */
 			errstr(_("Cannot find any quota file to work on.\n"));
 			goto out_handle;
 		}
 	} else {
-		if (get_qf_name(mnt, type, fmt,
-				(!QIO_ENABLED(h) || flags & IOI_OPENFILE) ? NF_FORMAT : 0,
-			  	&qfname) < 0) {
+		if (get_qf_name(mnt, type, fmt, nameflag, &qfname) < 0) {
 			errstr(_("Quota file not found or has wrong format.\n"));
 			goto out_handle;
 		}
 	}
-	if (!QIO_ENABLED(h) || flags & IOI_OPENFILE) {	/* Need to open file? */
+	if (!QIO_ENABLED(h) || flags & IOI_INITSCAN) {	/* Need to open file? */
+		if (QIO_ENABLED(h)) {	/* Kernel uses same file? */
+			unsigned int cmd =
+				(kernel_iface == IFACE_GENERIC) ? Q_SYNC : Q_6_5_SYNC;
+			if (quotactl(QCMD(cmd, h->qh_type), h->qh_quotadev,
+				     0, NULL) < 0) {
+				die(4, _("Cannot sync quotas on device %s: %s\n"),
+				    h->qh_quotadev, strerror(errno));
+			}
+		}
 		/* We still need to open file for operations like 'repquota' */
 		if ((fd = open(qfname, QIO_RO(h) ? O_RDONLY : O_RDWR)) < 0) {
 			errstr(_("Cannot open quotafile %s: %s\n"),
@@ -190,21 +189,30 @@ out_handle:
 /*
  *	Create new quotafile of specified format on given filesystem
  */
-struct quota_handle *new_io(struct mntent *mnt, int type, int fmt)
+struct quota_handle *new_io(struct mount_entry *mnt, int type, int fmt)
 {
 	char *qfname;
 	int fd;
 	struct quota_handle *h;
-	const char *mnt_fsname;
 	char namebuf[PATH_MAX];
 
 	if (fmt == -1)
 		fmt = QF_VFSV0;
-	else if (fmt == QF_RPC || fmt == QF_XFS || meta_qf_fstype(mnt->mnt_type)) {
+	else if (fmt == QF_RPC || fmt == QF_XFS) {
 		errstr(_("Creation of %s quota format is not supported.\n"),
 			fmt2name(fmt));
 		return NULL;
 	}
+	/*
+	 * For filesystems which never have quotas in quota files or for
+ 	 * filesystems which have quotas already stored in system files we
+	 * refuse to create anything.
+	 */
+ 	if (meta_qf_fstype(mnt->me_type) || mnt->me_qfmt[type] == QF_META) {
+		errstr(_("Quota on %s is stored in system files and must"
+			 " be manipulated by fs tools.\n"), mnt->me_dir);
+		return NULL;
+	}
 	if (get_qf_name(mnt, type, fmt, 0, &qfname) < 0)
 		return NULL;
 	sstrncpy(namebuf, qfname, PATH_MAX);
@@ -215,14 +223,13 @@ struct quota_handle *new_io(struct mntent *mnt, int type, int fmt)
 			namebuf, strerror(errno));
 		return NULL;
 	}
-	if (!(mnt_fsname = get_device_name(mnt->mnt_fsname)))
-		goto out_fd;
 	h = smalloc(sizeof(struct quota_handle));
 
 	h->qh_fd = fd;
 	h->qh_io_flags = 0;
-	sstrncpy(h->qh_quotadev, mnt_fsname, sizeof(h->qh_quotadev));
-	free((char *)mnt_fsname);
+	sstrncpy(h->qh_quotadev, mnt->me_devname, sizeof(h->qh_quotadev));
+	sstrncpy(h->qh_fstype, mnt->me_type, MAX_FSTYPE_LEN);
+	sstrncpy(h->qh_dir, mnt->me_dir, PATH_MAX);
 	h->qh_type = type;
 	h->qh_fmt = fmt;
 	memset(&h->qh_info, 0, sizeof(h->qh_info));
@@ -274,3 +281,27 @@ struct dquot *get_empty_dquot(void)
 	dquot->dq_id = -1;
 	return dquot;
 }
+
+/*
+ *	Check whether values in current dquot can be stored on disk
+ */
+int check_dquot_range(struct dquot *dquot)
+{
+	struct util_dqinfo *info = &dquot->dq_h->qh_info;
+
+	if (dquot->dq_dqb.dqb_bhardlimit > info->dqi_max_b_limit ||
+	    dquot->dq_dqb.dqb_bsoftlimit > info->dqi_max_b_limit ||
+	    dquot->dq_dqb.dqb_ihardlimit > info->dqi_max_i_limit ||
+	    dquot->dq_dqb.dqb_isoftlimit > info->dqi_max_i_limit) {
+		errstr(_("Trying to set quota limits out of range "
+				 "supported by quota format on %s.\n"), dquot->dq_h->qh_quotadev);
+		return -1;
+	}
+	if (dquot->dq_dqb.dqb_curinodes > info->dqi_max_i_usage ||
+	    dquot->dq_dqb.dqb_curspace > info->dqi_max_b_usage) {
+		errstr(_("Trying to set quota usage out of range "
+			 "supported by quota format on %s.\n"), dquot->dq_h->qh_quotadev);
+		return -1;
+	}
+	return 0;
+}