Page MenuHomeFreeBSD
Files F151710615

D1210.diff
No OneTemporary
Actions

D1210.diff
View Options

Index: etc/auto_master
===================================================================
--- etc/auto_master
+++ etc/auto_master
@@ -3,3 +3,6 @@
# Automounter master map, see auto_master(5) for details.
#
/net -hosts -nobrowse,nosuid
+# When using the -media special map, make sure to edit devd.conf(5)
+# to move the call to "automount -c" out of the comments section.
+#/media -media -nosuid
Index: etc/autofs/Makefile
===================================================================
--- etc/autofs/Makefile
+++ etc/autofs/Makefile
@@ -1,6 +1,6 @@
# $FreeBSD$
-FILES= include_ldap special_hosts special_null
+FILES= include_ldap special_hosts special_media special_null
NO_OBJ=
FILESDIR= /etc/autofs
Index: etc/autofs/special_media
===================================================================
--- /dev/null
+++ etc/autofs/special_media
@@ -0,0 +1,93 @@
+#!/bin/sh
+#
+# $FreeBSD$
+#
+
+# Print newline-separated list of devices available for mounting.
+# If there is a filesystem label - use it, otherwise use device name.
+print_available() {
+ local _fstype _fstype_and_label _label _p
+
+ for _p in ${providers}; do
+ _fstype_and_label="$(fstyp -l "/dev/${_p}" 2> /dev/null)"
+ if [ $? -ne 0 ]; then
+ # Ignore devices for which we were unable
+ # to determine filesystem type.
+ continue
+ fi
+
+ _fstype="${_fstype_and_label%% *}"
+ if [ "${_fstype}" != "${_fstype_and_label}" ]; then
+ _label="${_fstype_and_label#* }"
+ echo "${_label}"
+ continue
+ fi
+
+ echo "${_p}"
+ done
+}
+
+# Print a single map entry.
+print_one() {
+ local _fstype _fstype_and_label _label _key _p
+
+ _key="$1"
+
+ _fstype="$(fstyp "/dev/${_key}" 2> /dev/null)"
+ if [ $? -eq 0 ]; then
+ echo "-fstype=${_fstype},nosuid :/dev/${_key}"
+ return
+ fi
+
+ for _p in ${providers}; do
+ _fstype_and_label="$(fstyp -l "/dev/${_p}" 2> /dev/null)"
+ if [ $? -ne 0 ]; then
+ # Ignore devices for which we were unable
+ # to determine filesystem type.
+ continue
+ fi
+
+ _fstype="${_fstype_and_label%% *}"
+ if [ "${_fstype}" = "${_fstype_and_label}" ]; then
+ # No label, try another device.
+ continue
+ fi
+
+ _label="${_fstype_and_label#* }"
+ if [ "${_label}" != "${_key}" ]; then
+ # Labels don't match, try another device.
+ continue
+ fi
+
+ echo "-fstype=${_fstype},nosuid :/dev/${_p}"
+ done
+
+ # No matching device - don't print anything, autofs will handle it.
+}
+
+# Obtain a list of (geom-provider-name, access-count) pairs, turning this:
+#
+# z0xfffff80005085d00 [shape=hexagon,label="ada0\nr2w2e3\nerr#0\nsector=512\nstripe=0"];
+#
+# Into this:
+#
+# ada0 r2w2e3
+#
+# XXX: It would be easier to use kern.geom.conftxt instead, but it lacks
+# access counts.
+pairs=$(sysctl kern.geom.confdot | sed -n 's/^.*hexagon,label="\([^\]*\)\\n\([^\]*\).*/\1 \2/p')
+
+# Obtain a list of GEOM providers that are not already open - not mounted,
+# and without other GEOM class, such as gpart, attached. In other words,
+# grep for "r0w0e0". Skip providers with names containing slashes; we're
+# not interested in geom_label(4) creations.
+providers=$(echo "$pairs" | awk '$2 == "r0w0e0" && $1 !~ /\// { print $1 }')
+
+if [ $# -eq 0 ]; then
+ print_available
+ exit 0
+fi
+
+print_one "$1"
+exit 0
+
Index: etc/devd.conf
===================================================================
--- etc/devd.conf
+++ etc/devd.conf
@@ -318,4 +318,16 @@
action "/usr/local/etc/rc.d/postgresql restart";
};
+# Discard autofs caches, useful for the -media special map. The one
+# second delay is for GEOM to finish tasting.
+#
+# XXX: We should probably have a devctl(4) event that fires after GEOM
+# tasting.
+#
+notify 100 {
+ match "system" "DEVFS";
+ match "cdev" "(da|mmcsd)[0-9]+";
+ action "sleep 1 && /usr/sbin/automount -c";
+};
+
*/
Index: usr.sbin/autofs/auto_master.5
===================================================================
--- usr.sbin/autofs/auto_master.5
+++ usr.sbin/autofs/auto_master.5
@@ -27,7 +27,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd November 21, 2014
+.Dd November 22, 2014
.Dt AUTO_MASTER 5
.Os
.Sh NAME
@@ -213,14 +213,17 @@
.Pp
.Bl -tag -width "-hosts" -compact
.It Li -hosts
-This map queries the remote NFS server and maps exported volumes.
-It is traditionally mounted on
+Query the remote NFS server and map exported shares.
+This map is traditionally mounted on
.Pa /net .
-It enables access to files on a remote NFS server by accessing
+Access to files on a remote NFS server is provided through the
.Pa /net/nfs-server-ip/share-name/
-directory, without the need for any further configuration.
+directory without any additional configuration.
+.It Li -media
+Query devices that are not yet mounted, but contain valid filesystems.
+Generally used to access files on removable media.
.It Li -null
-This map prevents the
+Prevent
.Xr automountd 8
from mounting anything on the mountpoint.
.El

File Metadata

Mime Type
text/plain
Expires
Sat, Apr 11, 4:58 AM (21 m, 36 s)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
31268346
Default Alt Text
D1210.diff (4 KB)

Event Timeline