summaryrefslogtreecommitdiffstats
path: root/lib
diff options
context:
space:
mode:
Diffstat (limited to 'lib')
-rw-r--r--lib/libc/nls/ru_RU.KOI8-R.msg8
-rw-r--r--lib/libutil/Makefile10
-rw-r--r--lib/libutil/libutil.h10
-rw-r--r--lib/libutil/quotafile.3170
-rw-r--r--lib/libutil/quotafile.c426
5 files changed, 617 insertions, 7 deletions
diff --git a/lib/libc/nls/ru_RU.KOI8-R.msg b/lib/libc/nls/ru_RU.KOI8-R.msg
index 431bc27..55233b9 100644
--- a/lib/libc/nls/ru_RU.KOI8-R.msg
+++ b/lib/libc/nls/ru_RU.KOI8-R.msg
@@ -114,7 +114,7 @@ $ ENETRESET
$ ECONNABORTED
53 Программа вызвала аварийное прекращение подключения
$ ECONNRESET
-54 Подключение сброшено противоположной стороной
+54 Подключение сброшено противоположной строной
$ ENOBUFS
55 Не осталось места под буфер
$ EISCONN
@@ -146,7 +146,7 @@ $ EUSERS
$ EDQUOT
69 Превзойдена дисковая квота
$ ESTALE
-70 Устаревший дескриптор файла NFS
+70 Устаревший декриптор файла NFS
$ EREMOTE
71 Слишком много дистанционных переходов в пути
$ EBADRPC
@@ -180,9 +180,9 @@ $ ECANCELED
$ EILSEQ
86 Недопустимая последовательность байтов
$ ENOATTR
-87 Атрибут не найден
+87 Аттрибут не найден
$ EDOOFUS
-88 Ошибка программирования
+88 Ошибка програмирования
$
$ strsignal() support catalog
$
diff --git a/lib/libutil/Makefile b/lib/libutil/Makefile
index 2933649..d7bd6dc 100644
--- a/lib/libutil/Makefile
+++ b/lib/libutil/Makefile
@@ -12,8 +12,8 @@ SRCS= _secure_path.c auth.c expand_number.c flopen.c fparseln.c gr_util.c \
hexdump.c humanize_number.c kinfo_getfile.c kinfo_getvmmap.c kld.c \
login.c login_auth.c login_cap.c \
login_class.c login_crypt.c login_ok.c login_times.c login_tty.c \
- logout.c logwtmp.c pidfile.c property.c pty.c pw_util.c realhostname.c \
- stub.c trimdomain.c uucplock.c
+ logout.c logwtmp.c pidfile.c property.c pty.c pw_util.c quotafile.c \
+ realhostname.c stub.c trimdomain.c uucplock.c
INCS= libutil.h login_cap.h
WARNS?= 6
@@ -31,7 +31,7 @@ MAN+= kld.3 login.3 login_auth.3 login_tty.3 logout.3 logwtmp.3 pty.3 \
_secure_path.3 uucplock.3 property.3 auth.3 realhostname.3 \
realhostname_sa.3 trimdomain.3 fparseln.3 humanize_number.3 \
pidfile.3 flopen.3 expand_number.3 hexdump.3 \
- kinfo_getfile.3 kinfo_getvmmap.3
+ kinfo_getfile.3 kinfo_getvmmap.3 quotafile.3
MAN+= login.conf.5 auth.conf.5
MLINKS+= kld.3 kld_isloaded.3 kld.3 kld_load.3
MLINKS+= property.3 properties_read.3 property.3 properties_free.3
@@ -59,5 +59,9 @@ MLINKS+=pidfile.3 pidfile_open.3 \
pidfile.3 pidfile_write.3 \
pidfile.3 pidfile_close.3 \
pidfile.3 pidfile_remove.3
+MLINKS+=quotafile.3 quota_open.3 \
+ quotafile.3 quota_read.3 \
+ quotafile.3 quota_write.3 \
+ quotafile.3 quota_close.3
.include <bsd.lib.mk>
diff --git a/lib/libutil/libutil.h b/lib/libutil/libutil.h
index 3187fb3..afd5db6 100644
--- a/lib/libutil/libutil.h
+++ b/lib/libutil/libutil.h
@@ -140,6 +140,16 @@ int pidfile_close(struct pidfh *pfh);
int pidfile_remove(struct pidfh *pfh);
#endif
+#ifdef _UFS_UFS_QUOTA_H_
+struct quotafile;
+struct fstab;
+struct quotafile *quota_open(struct fstab *, int, int);
+void quota_close(struct quotafile *);
+int quota_read(struct quotafile *, struct dqblk *, int);
+int quota_write_limits(struct quotafile *, struct dqblk *, int);
+int quota_write_usage(struct quotafile *, struct dqblk *, int);
+#endif
+
__END_DECLS
#define UU_LOCK_INUSE (1)
diff --git a/lib/libutil/quotafile.3 b/lib/libutil/quotafile.3
new file mode 100644
index 0000000..07a08a2
--- /dev/null
+++ b/lib/libutil/quotafile.3
@@ -0,0 +1,170 @@
+.\"-
+.\" Copyright (c) 2008 Dag-Erling Coц╞dan Smц╦rgrav
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd February 14, 2009
+.Dt QUOTAFILE 3
+.Os
+.Sh NAME
+.Nm quota_open
+.Nm quota_read
+.Nm quota_write_limits
+.Nm quota_write_usage
+.Nm quota_close
+.Nd "Manipulate quotas"
+.Sh LIBRARY
+.Lb libutil
+.Sh SYNOPSIS
+.In ufs/ufs/quota.h
+.In libutil.h
+.In fstab.h
+.Ft "struct quotafile *"
+.Fn quota_open "struct fstab *fs" "int quotatype" "int openflags"
+.Ft int
+.Fn quota_read "struct quotafile *qf" "struct dqblk *dqb" "int id"
+.Ft int
+.Fn quota_write_limits "struct quotafile *qf" "struct dqblk *dqb" "int id"
+.Ft int
+.Fn quota_write_usage "struct quotafile *qf" "struct dqblk *dqb" "int id"
+.Ft int
+.Fn quota_close "struct quotafile *qf"
+.Sh DESCRIPTION
+These functions are designed to simplify access to filesystem quotas.
+If quotas are active on a filesystem,
+these functions will access them directly from the kernel using the
+.Fn quotactl
+system call.
+If quotas are not active,
+these functions will access them by reading and writing
+the quota files directly.
+.Pp
+The
+.Fn quota_open
+function takes a pointer to an
+.Vt fstab
+entry corresponding to the filesystem on which quotas
+are to be accessed.
+The
+.Va quotatype
+field indicates the type of quotas being sought, either
+.Dv USRQUOTA
+or
+.Dv GRPQUOTA .
+The
+.Va openflags
+are those used by the
+.Fn open
+system call, usually either
+.Dv O_RDONLY
+if the quotas are just to be read, or
+.Dv O_RDWR
+if the quotas are to be updated.
+The
+.Dv O_CREAT
+flag should be specified if a new quota file of the requested type should
+be created if it does not already exist.
+.Pp
+The
+.Fn quota_read
+function reads the quota from the filesystem and quota type referenced by
+.Va qf
+for the user (or group) specified by
+.Va id
+into the
+.Vt dqblk
+quota structure pointed to by
+.Va dqb .
+.Pp
+The
+.Fn quota_write_limits
+function updates the limit fields (but not the usage fields)
+for the filesystem and quota type referenced by
+.Va qf
+for the user (or group) specified by
+.Va id
+from the
+.Vt dqblk
+quota structure pointed to by
+.Va dqb .
+.Pp
+The
+.Fn quota_write_usage
+function updates the usage fields (but not the limit fields)
+for the filesystem and quota type referenced by
+.Va qf
+for the user (or group) specified by
+.Va id
+from the
+.Vt dqblk
+quota structure pointed to by
+.Va dqb .
+.Pp
+The
+.Fn quota_close
+function closes any open file descriptors and frees any storage
+associated with the filesystem and quota type referenced by
+.Va qf .
+.Sh RETURN VALUES
+If the filesystem has quotas associated with it,
+.Fn quota_open
+returns a pointer to a
+.Vt quotafile
+structure used in subsequent quota access calls.
+If the filesystem has no quotas, or access permission is denied
+.Dv NULL
+is returned and
+.Va errno
+is set to indicate the cause of failure.
+.Pp
+The
+.Fn quota_read ,
+.Fn quota_write_limits ,
+.Fn quota_write_usage ,
+and
+.Fn quota_close
+functions return zero on success.
+On error they return
+.Dv -1
+and set
+.Va errno
+to indicate the cause of failure.
+.Sh SEE ALSO
+.Xr quotactl 2 ,
+.Xr quota.user 5 ,
+.Xr quota.group 5
+.Sh HISTORY
+The
+.Nm
+functions first appeared in
+.Fx 8.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+functions and this manual page were written by
+.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org
+and
+.An Marshall Kirk McKusick .
diff --git a/lib/libutil/quotafile.c b/lib/libutil/quotafile.c
new file mode 100644
index 0000000..58c02b1
--- /dev/null
+++ b/lib/libutil/quotafile.c
@@ -0,0 +1,426 @@
+/*-
+ * Copyright (c) 2008 Dag-Erling Coц╞dan Smц╦rgrav
+ * Copyright (c) 2008 Marshall Kirk McKusick
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer
+ * in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+#include <sys/endian.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+
+#include <ufs/ufs/quota.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <fstab.h>
+#include <grp.h>
+#include <pwd.h>
+#include <libutil.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+struct quotafile {
+ int fd; /* -1 means using quotactl for access */
+ int wordsize; /* 32-bit or 64-bit limits */
+ int quotatype; /* USRQUOTA or GRPQUOTA */
+ char fsname[MAXPATHLEN + 1]; /* mount point of filesystem */
+ char qfname[MAXPATHLEN + 1]; /* quota file if not using quotactl */
+};
+
+static const char *qfextension[] = INITQFNAMES;
+
+/*
+ * Check to see if a particular quota is to be enabled.
+ */
+static int
+hasquota(struct fstab *fs, int type, char *qfnamep, int qfbufsize)
+{
+ char *opt;
+ char *cp;
+ struct statfs sfb;
+ char buf[BUFSIZ];
+ static char initname, usrname[100], grpname[100];
+
+ if (!initname) {
+ (void)snprintf(usrname, sizeof(usrname), "%s%s",
+ qfextension[USRQUOTA], QUOTAFILENAME);
+ (void)snprintf(grpname, sizeof(grpname), "%s%s",
+ qfextension[GRPQUOTA], QUOTAFILENAME);
+ initname = 1;
+ }
+ strcpy(buf, fs->fs_mntops);
+ for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
+ if ((cp = index(opt, '=')))
+ *cp++ = '\0';
+ if (type == USRQUOTA && strcmp(opt, usrname) == 0)
+ break;
+ if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
+ break;
+ }
+ if (!opt)
+ return (0);
+ /*
+ * Ensure that the filesystem is mounted.
+ */
+ if (statfs(fs->fs_file, &sfb) != 0 ||
+ strcmp(fs->fs_file, sfb.f_mntonname)) {
+ return (0);
+ }
+ if (cp) {
+ strncpy(qfnamep, cp, qfbufsize);
+ } else {
+ (void)snprintf(qfnamep, qfbufsize, "%s/%s.%s", fs->fs_file,
+ QUOTAFILENAME, qfextension[type]);
+ }
+ return (1);
+}
+
+struct quotafile *
+quota_open(struct fstab *fs, int quotatype, int openflags)
+{
+ struct quotafile *qf;
+ struct dqhdr64 dqh;
+ struct group *grp;
+ int qcmd, serrno;
+
+ if ((qf = calloc(1, sizeof(*qf))) == NULL)
+ return (NULL);
+ qf->quotatype = quotatype;
+ strncpy(qf->fsname, fs->fs_file, sizeof(qf->fsname));
+ qcmd = QCMD(Q_GETQUOTA, quotatype);
+ if (quotactl(fs->fs_file, qcmd, 0, &dqh) == 0) {
+ qf->wordsize = 64;
+ qf->fd = -1;
+ return (qf);
+ }
+ if (!hasquota(fs, quotatype, qf->qfname, sizeof(qf->qfname))) {
+ free(qf);
+ errno = EOPNOTSUPP;
+ return (NULL);
+ }
+ if ((qf->fd = open(qf->qfname, openflags & O_ACCMODE)) < 0 &&
+ (openflags & O_CREAT) == 0) {
+ serrno = errno;
+ free(qf);
+ errno = serrno;
+ return (NULL);
+ }
+ /* File open worked, so process it */
+ if (qf->fd != -1) {
+ qf->wordsize = 32;
+ switch (read(qf->fd, &dqh, sizeof(dqh))) {
+ case -1:
+ serrno = errno;
+ close(qf->fd);
+ free(qf);
+ errno = serrno;
+ return (NULL);
+ case sizeof(dqh):
+ if (strcmp(dqh.dqh_magic, Q_DQHDR64_MAGIC) != 0) {
+ /* no magic, assume 32 bits */
+ qf->wordsize = 32;
+ return (qf);
+ }
+ if (be32toh(dqh.dqh_version) != Q_DQHDR64_VERSION ||
+ be32toh(dqh.dqh_hdrlen) != sizeof(struct dqhdr64) ||
+ be32toh(dqh.dqh_reclen) != sizeof(struct dqblk64)) {
+ /* correct magic, wrong version / lengths */
+ close(qf->fd);
+ free(qf);
+ errno = EINVAL;
+ return (NULL);
+ }
+ qf->wordsize = 64;
+ return (qf);
+ default:
+ qf->wordsize = 32;
+ return (qf);
+ }
+ /* not reached */
+ }
+ /* Open failed above, but O_CREAT specified, so create a new file */
+ if ((qf->fd = open(qf->qfname, O_RDWR|O_CREAT|O_TRUNC, 0)) < 0) {
+ serrno = errno;
+ free(qf);
+ errno = serrno;
+ return (NULL);
+ }
+ qf->wordsize = 64;
+ memset(&dqh, 0, sizeof(dqh));
+ memcpy(dqh.dqh_magic, Q_DQHDR64_MAGIC, sizeof(dqh.dqh_magic));
+ dqh.dqh_version = htobe32(Q_DQHDR64_VERSION);
+ dqh.dqh_hdrlen = htobe32(sizeof(struct dqhdr64));
+ dqh.dqh_reclen = htobe32(sizeof(struct dqblk64));
+ if (write(qf->fd, &dqh, sizeof(dqh)) != sizeof(dqh)) {
+ serrno = errno;
+ unlink(qf->qfname);
+ close(qf->fd);
+ free(qf);
+ errno = serrno;
+ return (NULL);
+ }
+ grp = getgrnam(QUOTAGROUP);
+ fchown(qf->fd, 0, grp ? grp->gr_gid : 0);
+ fchmod(qf->fd, 0640);
+ return (qf);
+}
+
+void
+quota_close(struct quotafile *qf)
+{
+
+ if (qf->fd != -1)
+ close(qf->fd);
+ free(qf);
+}
+
+static int
+quota_read32(struct quotafile *qf, struct dqblk *dqb, int id)
+{
+ struct dqblk32 dqb32;
+ off_t off;
+
+ off = id * sizeof(struct dqblk32);
+ if (lseek(qf->fd, off, SEEK_SET) == -1)
+ return (-1);
+ switch (read(qf->fd, &dqb32, sizeof(dqb32))) {
+ case 0:
+ memset(&dqb, 0, sizeof(*dqb));
+ return (0);
+ case sizeof(dqb32):
+ dqb->dqb_bhardlimit = dqb32.dqb_bhardlimit;
+ dqb->dqb_bsoftlimit = dqb32.dqb_bsoftlimit;
+ dqb->dqb_curblocks = dqb32.dqb_curblocks;
+ dqb->dqb_ihardlimit = dqb32.dqb_ihardlimit;
+ dqb->dqb_isoftlimit = dqb32.dqb_isoftlimit;
+ dqb->dqb_curinodes = dqb32.dqb_curinodes;
+ dqb->dqb_btime = dqb32.dqb_btime;
+ dqb->dqb_itime = dqb32.dqb_itime;
+ return (0);
+ default:
+ return (-1);
+ }
+}
+
+static int
+quota_read64(struct quotafile *qf, struct dqblk *dqb, int id)
+{
+ struct dqblk64 dqb64;
+ off_t off;
+
+ off = sizeof(struct dqhdr64) + id * sizeof(struct dqblk64);
+ if (lseek(qf->fd, off, SEEK_SET) == -1)
+ return (-1);
+ switch (read(qf->fd, &dqb64, sizeof(dqb64))) {
+ case 0:
+ memset(&dqb, 0, sizeof(*dqb));
+ return (0);
+ case sizeof(dqb64):
+ dqb->dqb_bhardlimit = be64toh(dqb64.dqb_bhardlimit);
+ dqb->dqb_bsoftlimit = be64toh(dqb64.dqb_bsoftlimit);
+ dqb->dqb_curblocks = be64toh(dqb64.dqb_curblocks);
+ dqb->dqb_ihardlimit = be64toh(dqb64.dqb_ihardlimit);
+ dqb->dqb_isoftlimit = be64toh(dqb64.dqb_isoftlimit);
+ dqb->dqb_curinodes = be64toh(dqb64.dqb_curinodes);
+ dqb->dqb_btime = be64toh(dqb64.dqb_btime);
+ dqb->dqb_itime = be64toh(dqb64.dqb_itime);
+ return (0);
+ default:
+ return (-1);
+ }
+}
+
+int
+quota_read(struct quotafile *qf, struct dqblk *dqb, int id)
+{
+ int qcmd;
+
+ if (qf->fd == -1) {
+ qcmd = QCMD(Q_GETQUOTA, qf->quotatype);
+ return (quotactl(qf->fsname, qcmd, id, dqb));
+ }
+ switch (qf->wordsize) {
+ case 32:
+ return quota_read32(qf, dqb, id);
+ case 64:
+ return quota_read64(qf, dqb, id);
+ default:
+ errno = EINVAL;
+ return (-1);
+ }
+ /* not reached */
+}
+
+#define CLIP32(u64) ((u64) > UINT32_MAX ? UINT32_MAX : (uint32_t)(u64))
+
+static int
+quota_write32(struct quotafile *qf, const struct dqblk *dqb, int id)
+{
+ struct dqblk32 dqb32;
+ off_t off;
+
+ dqb32.dqb_bhardlimit = CLIP32(dqb->dqb_bhardlimit);
+ dqb32.dqb_bsoftlimit = CLIP32(dqb->dqb_bsoftlimit);
+ dqb32.dqb_curblocks = CLIP32(dqb->dqb_curblocks);
+ dqb32.dqb_ihardlimit = CLIP32(dqb->dqb_ihardlimit);
+ dqb32.dqb_isoftlimit = CLIP32(dqb->dqb_isoftlimit);
+ dqb32.dqb_curinodes = CLIP32(dqb->dqb_curinodes);
+ dqb32.dqb_btime = CLIP32(dqb->dqb_btime);
+ dqb32.dqb_itime = CLIP32(dqb->dqb_itime);
+
+ off = id * sizeof(struct dqblk32);
+ if (lseek(qf->fd, off, SEEK_SET) == -1)
+ return (-1);
+ if (write(qf->fd, &dqb32, sizeof(dqb32)) == sizeof(dqb32))
+ return (0);
+ return (-1);
+}
+
+static int
+quota_write64(struct quotafile *qf, const struct dqblk *dqb, int id)
+{
+ struct dqblk64 dqb64;
+ off_t off;
+
+ dqb64.dqb_bhardlimit = htobe64(dqb->dqb_bhardlimit);
+ dqb64.dqb_bsoftlimit = htobe64(dqb->dqb_bsoftlimit);
+ dqb64.dqb_curblocks = htobe64(dqb->dqb_curblocks);
+ dqb64.dqb_ihardlimit = htobe64(dqb->dqb_ihardlimit);
+ dqb64.dqb_isoftlimit = htobe64(dqb->dqb_isoftlimit);
+ dqb64.dqb_curinodes = htobe64(dqb->dqb_curinodes);
+ dqb64.dqb_btime = htobe64(dqb->dqb_btime);
+ dqb64.dqb_itime = htobe64(dqb->dqb_itime);
+
+ off = sizeof(struct dqhdr64) + id * sizeof(struct dqblk64);
+ if (lseek(qf->fd, off, SEEK_SET) == -1)
+ return (-1);
+ if (write(qf->fd, &dqb64, sizeof(dqb64)) == sizeof(dqb64))
+ return (0);
+ return (-1);
+}
+
+int
+quota_write_usage(struct quotafile *qf, struct dqblk *dqb, int id)
+{
+ struct dqblk dqbuf;
+ int qcmd;
+
+ if (qf->fd == -1) {
+ qcmd = QCMD(Q_SETUSE, qf->quotatype);
+ return (quotactl(qf->fsname, qcmd, id, dqb));
+ }
+ /*
+ * Have to do read-modify-write of quota in file.
+ */
+ if (quota_read(qf, &dqbuf, id) != 0)
+ return (-1);
+ /*
+ * Reset time limit if have a soft limit and were
+ * previously under it, but are now over it.
+ */
+ if (dqbuf.dqb_bsoftlimit && id != 0 &&
+ dqbuf.dqb_curblocks < dqbuf.dqb_bsoftlimit &&
+ dqb->dqb_curblocks >= dqbuf.dqb_bsoftlimit)
+ dqbuf.dqb_btime = 0;
+ if (dqbuf.dqb_isoftlimit && id != 0 &&
+ dqbuf.dqb_curinodes < dqbuf.dqb_isoftlimit &&
+ dqb->dqb_curinodes >= dqbuf.dqb_isoftlimit)
+ dqbuf.dqb_itime = 0;
+ dqbuf.dqb_curinodes = dqb->dqb_curinodes;
+ dqbuf.dqb_curblocks = dqb->dqb_curblocks;
+ /*
+ * Write it back.
+ */
+ switch (qf->wordsize) {
+ case 32:
+ return quota_write32(qf, &dqbuf, id);
+ case 64:
+ return quota_write64(qf, &dqbuf, id);
+ default:
+ errno = EINVAL;
+ return (-1);
+ }
+ /* not reached */
+}
+
+int
+quota_write_limits(struct quotafile *qf, struct dqblk *dqb, int id)
+{
+ struct dqblk dqbuf;
+ int qcmd;
+
+ if (qf->fd == -1) {
+ qcmd = QCMD(Q_SETQUOTA, qf->quotatype);
+ return (quotactl(qf->fsname, qcmd, id, dqb));
+ }
+ /*
+ * Have to do read-modify-write of quota in file.
+ */
+ if (quota_read(qf, &dqbuf, id) != 0)
+ return (-1);
+ /*
+ * Reset time limit if have a soft limit and were
+ * previously under it, but are now over it
+ * or if there previously was no soft limit, but
+ * now have one and are over it.
+ */
+ if (dqbuf.dqb_bsoftlimit && id != 0 &&
+ dqbuf.dqb_curblocks < dqbuf.dqb_bsoftlimit &&
+ dqbuf.dqb_curblocks >= dqb->dqb_bsoftlimit)
+ dqb->dqb_btime = 0;
+ if (dqbuf.dqb_bsoftlimit == 0 && id != 0 &&
+ dqb->dqb_bsoftlimit > 0 &&
+ dqbuf.dqb_curblocks >= dqb->dqb_bsoftlimit)
+ dqb->dqb_btime = 0;
+ if (dqbuf.dqb_isoftlimit && id != 0 &&
+ dqbuf.dqb_curinodes < dqbuf.dqb_isoftlimit &&
+ dqbuf.dqb_curinodes >= dqb->dqb_isoftlimit)
+ dqb->dqb_itime = 0;
+ if (dqbuf.dqb_isoftlimit == 0 && id !=0 &&
+ dqb->dqb_isoftlimit > 0 &&
+ dqbuf.dqb_curinodes >= dqb->dqb_isoftlimit)
+ dqb->dqb_itime = 0;
+ dqb->dqb_curinodes = dqbuf.dqb_curinodes;
+ dqb->dqb_curblocks = dqbuf.dqb_curblocks;
+ /*
+ * Write it back.
+ */
+ switch (qf->wordsize) {
+ case 32:
+ return quota_write32(qf, dqb, id);
+ case 64:
+ return quota_write64(qf, dqb, id);
+ default:
+ errno = EINVAL;
+ return (-1);
+ }
+ /* not reached */
+}
OpenPOWER on IntegriCloud