util-linux/util-linux-2.13-mount-uhelp...

69 lines
2.1 KiB
Diff

--- util-linux-2.13-pre6/mount/mount.c.uhelper 2006-09-15 13:23:23.000000000 +0200
+++ util-linux-2.13-pre6/mount/mount.c 2006-09-15 13:23:23.000000000 +0200
@@ -183,7 +183,7 @@
};
static const char *opt_loopdev, *opt_vfstype, *opt_offset, *opt_encryption,
- *opt_speed, *opt_comment;
+ *opt_speed, *opt_comment, *opt_uhelper;
static struct string_opt_map {
char *tag;
@@ -196,6 +196,7 @@
{ "encryption=", 0, &opt_encryption },
{ "speed=", 0, &opt_speed },
{ "comment=", 1, &opt_comment },
+ { "uhelper=", 0, &opt_uhelper },
{ NULL, 0, NULL }
};
--- util-linux-2.13-pre6/mount/umount.8.uhelper 2004-11-10 20:49:37.000000000 +0100
+++ util-linux-2.13-pre6/mount/umount.8 2006-09-15 14:02:25.000000000 +0200
@@ -122,6 +122,19 @@
Any pending loop devices can be freed using `losetup -d', see
.BR losetup (8).
+.SH NOTES
+The syntax of external umount helpers is:
+
+.br
+.BI "/sbin/umount.<suffix> [\-nlfvr] " "dir " | " device "
+.br
+
+where the <suffix> is filesystem type or a value from "uhelper=" mtab option.
+
+The uhelper (unprivileged umount request helper) is possible used when non-root
+user wants to umount a mountpoint which is not defined in the /etc/fstab file
+(e.g devices mounted by HAL).
+
.SH FILES
.I /etc/mtab
table of mounted file systems
--- util-linux-2.13-pre6/mount/umount.c.uhelper 2006-09-15 13:23:23.000000000 +0200
+++ util-linux-2.13-pre6/mount/umount.c 2006-09-15 13:23:23.000000000 +0200
@@ -565,11 +565,24 @@
if (suid) {
char *mtab_user = NULL;
+ char *uhelper = NULL;
if (!mc)
die(2,
_("umount: %s is not mounted (according to mtab)"),
file);
+ /*
+ * uhelper - unprivileged umount helper
+ * -- external umount (for example HAL mounts)
+ */
+ if (mc->m.mnt_opts)
+ uhelper = get_value(mc->m.mnt_opts, "uhelper=");
+ if (uhelper) {
+ int status = 0;
+ if (check_special_umountprog(arg, arg, uhelper, &status))
+ return status;
+ }
+
/* The 2.4 kernel will generally refuse to mount the same
filesystem on the same mount point, but will accept NFS.
So, unmounting must be possible. */