tnew lookup for mounted tombs fully adopted - tomb - the crypto undertaker
HTML git clone git://parazyd.org/tomb.git
DIR Log
DIR Files
DIR Refs
DIR README
DIR LICENSE
---
DIR commit f5ccff802700320f28addd420e0916e621235f5a
DIR parent 148be7283b4ca7ec05ceb417f2797e367d829a22
HTML Author: Jaromil <jaromil@dyne.org>
Date: Wed, 15 May 2013 13:53:28 +0200
new lookup for mounted tombs fully adopted
now tomb close looks up bind hooks correctly
tthis commit includes backward compatibility fix for Debian 6
Diffstat:
M src/tomb | 323 +++++++++++++++----------------
1 file changed, 152 insertions(+), 171 deletions(-)
---
DIR diff --git a/src/tomb b/src/tomb
t@@ -850,7 +850,7 @@ lock_tomb_with_key() {
if [ $? = 0 ]; then
# is it a LUKS encrypted nest? then bail out and avoid reformatting it
_warning "The tomb was already locked with another key"
- losetup -d ${nstloop}
+ losetup -d ${nstloop}
die "Operation aborted. I cannot lock an already locked tomb. Go dig a new one."
else
_message "fine, this tomb seems empty."
t@@ -1324,6 +1324,78 @@ mount_tomb() {
}
# }}}
+
+# {{{ - Internal operations on mounted tombs
+
+# list_tomb_mounts
+# print out an array of mounted tombs (internal use)
+# format is semi-colon separated list of attributes
+# if 1st arg is supplied, then list only that tomb
+# Positions in array:
+# 1 = full mapper path
+# 2 = mountpoint
+# 3 = filesystem type
+# 4 = mount options
+# 5 = tomb name
+list_tomb_mounts() {
+ if [ "$1" = "" ]; then
+ # list all open tombs
+ mount -l \
+ | awk '
+BEGIN { main="" }
+/^\/dev\/mapper\/tomb/ {
+ if(main==$1) next;
+ print $1 ";" $3 ";" $5 ";" $6 ";" $7
+ main=$1
+}
+'
+ else
+ # list a specific tomb
+ mount -l \
+ | awk -vtomb="[$1]" '
+BEGIN { main="" }
+/^\/dev\/mapper\/tomb/ {
+ if($7!=tomb) next;
+ if(main==$1) next;
+ print $1 ";" $3 ";" $5 ";" $6 ";" $7
+ main=$1
+}
+'
+ fi
+}
+
+# list_tomb_binds
+# print out an array of mounted bind hooks (internal use)
+# format is semi-colon separated list of attributes
+# needs an argument: name of tomb whose hooks belong
+list_tomb_binds() {
+ if [ "$1" = "" ]; then
+ _failure "internal error: list_tomb_binds called without argument."; fi
+
+ # list bind hooks on util-linux 2.20 (Debian 7)
+ mount -l \
+ | awk -vtomb="$1" '
+BEGIN { main="" }
+/^\/dev\/mapper\/tomb/ {
+ if($7!=tomb) next;
+ if(main=="") { main=$1; next; }
+ if(main==$1)
+ print $1 ";" $3 ";" $5 ";" $6 ";" $7
+}
+'
+
+ # list bind hooks on util-linux 2.17 (Debian 6)
+ tombmount=`mount -l \
+ | awk -vtomb="$1" '
+/^\/dev\/mapper\/tomb/ { if($7!=tomb) next; print $3; exit; }'`
+
+ mount -l | grep "^$tombmount" \
+ | awk -vtomb="$1" '
+ /bind/ { print $1 ";" $3 ";" $5 ";" $6 ";" $7 }'
+}
+
+# }}}
+
# {{{ - Close
# {{{ - Slam the door
# Kill all processes using the tomb
t@@ -1358,141 +1430,104 @@ umount_tomb() {
local pathmap mapper tombname tombmount loopdev
local ans pidk pname
- if ! [ $1 ]; then
- tombs=`find /dev/mapper -name 'tomb.*'`
- how_many_tombs=`wc -w <<< "$tombs"`
- if [[ "$how_many_tombs" == "0" ]]; then
- _warning "There is no open tomb to be closed"
- return 1
- elif [[ "$how_many_tombs" == "1" ]]; then
- #mapper=`find /dev/mapper -name 'tomb.*'`
- xxx "closing mapper $tombs"
- umount_tomb ${tombs}
- return 1
- else
- _warning "Too many tombs mounted, please specify which to unmount:"
- ls /dev/mapper/tomb.*
- _warning "or issue the command 'tomb close all' to clos'em all."
- return 1
- fi
- fi
-
if [ "$1" = "all" ]; then
- tombs=`find /dev/mapper -name 'tomb.*'`
- if ! [ $tombs ]; then
- _success "Tombs are all closed, cemetery is quiet."
- return 0
- fi
- for t in ${(f)tombs}; do
- umount_tomb ${t}
- done
- return 0
- fi
-
- # tomb close argument deduction
- pathmap=`dirname "$1"`
-
- if [ "${pathmap}" = "/dev/mapper" ]; then
- mapper="$1" # argument is the mapper (or none which autofills mapper)
- tombname="${mapper[(ws:.:)2]}"
- tombmount=`mount -l | \
- awk -vtomb="[$tombname]" '/^\/dev\/mapper\/tomb/ { if($7==tomb) print $3 } '`
- elif [ "$pathmap" = "." ]; then
- tombname="$1" # argument is the name
- mapper=`mount -l | \
- awk -vtomb="[$tombname]" '/^\/dev\/mapper\/tomb/ { if($7==tomb) print $1 } '`
- tombmount=`mount -l | \
- awk -vtomb="[$tombname]" '/^\/dev\/mapper\/tomb/ { if($7==tomb) print $3 } '`
+ mounted_tombs=(`list_tomb_mounts`)
else
- tombmount="$1" # argument should be the mount
- mapper=`mount | awk -vmnt="$tombmount" '/^\/dev\/mapper\/tomb/ { if($3==mnt) print $1 }'`
- tombname="${mapper[(ws:.:)2]}"
+ mounted_tombs=(`list_tomb_mounts $1`)
fi
- # avoid block when the same tomb is mounted, take only the first
- for tm in ${(f)tombmount}; do tombmount=${tm}; break; done
+ { test ${#mounted_tombs} = 0 } && {
+ _warning "There is no open tomb to be closed"
+ return 1 }
- xxx "tomb close argument: $1"
- xxx "name: $tombname"
- xxx "mount: $tombmount"
- xxx "mapper: $mapper"
+ { test ${#mounted_tombs} -gt 1 } && { test "$1" = "" } && {
+ _warning "Too many tombs mounted, please specify one (see tomb list)"
+ _warning "or issue the command 'tomb close all' to close them all."
+ return 1 }
- if ! [ -e "$mapper" ]; then
- _warning "Tomb not found: $1"
- _warning "Please specify an existing tomb."
- return 0
- fi
+ say "Tomb close $1"
- if [ $SLAM ]; then
- _success "Slamming tomb $tombname mounted on $tombmount"
- _message "Kill all processes busy inside the tomb"
- if ! slam_tomb "$tombmount"; then
- _warning "Cannot slam the tomb $tombname"
- return 1
- fi
- else
- _success "Closing tomb $tombname mounted on $tombmount"
- fi
+ for t in ${mounted_tombs}; do
+ mapper=`basename ${t[(ws:;:)1]}`
+ tombname=${t[(ws:;:)5]}
+ tombmount=${t[(ws:;:)2]}
+ tombfs=${t[(ws:;:)3]}
+ tombfsopts=${t[(ws:;:)4]}
+ tombloop=${mapper[(ws:.:)4]}
- # check if there are binded dirs and close them
- tombmount_esc=`sed 's:\/:\\\/:g' <<< $tombmount `
- unbind=`mount | awk "/^$tombmount_esc.*bind/"' { print $3 }'`
- for b in ${(f)unbind}; do
- hook="`basename $b`"
- _message "closing tomb hook: $hook"
- umount $b
- if [[ $? != 0 ]]; then
- if [ $SLAM ]; then
- _success "Slamming tomb: killing all processes using this hook"
- slam_tomb "$b"
- if [[ $? == 1 ]]; then
- _warning "Cannot slam the tomb $b"
- return 1
- fi
- umount $b
- else
- _warning "Tomb hook is busy, cannot close tomb."
+ xxx "name: $tombname"
+ xxx "mount: $tombmount"
+ xxx "mapper: $mapper"
+
+ { test -e "$mapper" } && {
+ _warning "Tomb not found: $1"
+ _warning "Please specify an existing tomb."
+ return 0 }
+
+ if [ $SLAM ]; then
+ _success "Slamming tomb $tombname mounted on $tombmount"
+ _message "Kill all processes busy inside the tomb"
+ if ! slam_tomb "$tombmount"; then
+ _warning "Cannot slam the tomb $tombname"
return 1
- fi
+ fi
+ else
+ say "Closing tomb $tombname mounted on $tombmount"
fi
- done
+ # check if there are binded dirs and close them
+ bind_tombs=(`list_tomb_binds $tombname`)
+ for b in ${bind_tombs}; do
+ bind_mapper="${b[(ws:;:)1]}"
+ bind_mount="${b[(ws:;:)2]}"
+ _message "closing tomb bind hook: $bind_mount"
+ umount $bind_mount
+ if [[ $? != 0 ]]; then
+ if [ $SLAM ]; then
+ _success "Slamming tomb: killing all processes using this hook"
+ slam_tomb "$bind_mount"
+ if [[ $? == 1 ]]; then
+ _warning "Cannot slam the bind hook $bind_mount"
+ return 1
+ fi
+ umount $bind_mount
+ else
+ _warning "Tomb bind hook $bind_mount is busy, cannot close tomb."
+ fi
+ fi
+ done
+
# Execute post-hooks for eventual cleanup
- if ! option_is_set -n ; then
- exec_safe_post_hooks ${tombmount%%/} close
- fi
+ if ! option_is_set -n ; then
+ exec_safe_post_hooks ${tombmount%%/} close
+ fi
- if [ $tombmount ]; then # tomb is actively mounted
xxx "performing umount of $tombmount"
umount ${tombmount}
- if ! [ $? = 0 ]; then
- _warning "Tomb is busy, cannot umount!"
+ if ! [ $? = 0 ]; then _warning "Tomb is busy, cannot umount!"
else
# this means we used a "default" mount point
- if [ "${tombmount}" = "/media/${tombname}.tomb" ]; then
- rmdir ${tombmount}
- fi
+ { test "${tombmount}" = "/media/${tombname}.tomb" } && {
+ rmdir ${tombmount} }
fi
- fi
-
- cryptsetup luksClose $mapper
- if ! [ $? = 0 ]; then
- _warning "error occurred in cryptsetup luksClose ${mapper}"
- return 1
- fi
-
- loopdev=`cut -d '.' -f4 <<< "$mapper"`
- losetup -d "/dev/$loopdev"
-
- # kill the status tray widget if still present
- # this makes the widget disappear when closing tomb from cli
- awkmapper=`sed 's:\/:\\\/:g' <<< $mapper`
- statustray_pid=`ps ax | awk "/tomb-status $awkmapper/"' {print $1} '`
- if [ ${statustray_pid} ]; then
- kill ${statustray_pid}
- fi
- _success "Tomb $tombname closed: your bones will rest in peace."
+ cryptsetup luksClose $mapper
+ { test $? = 0 } || {
+ _warning "error occurred in cryptsetup luksClose ${mapper}"
+ return 1 }
+
+ losetup -d "/dev/$tombloop"
+
+ # # kill the status tray widget if still present
+ # # this makes the widget disappear when closing tomb from cli
+ # awkmapper=`sed 's:\/:\\\/:g' <<< $mapper`
+ # statustray_pid=`ps ax | awk "/tomb-status $awkmapper/"' {print $1} '`
+ # { test "$statustray_pid" = "" } || { kill ${statustray_pid} }
+
+ _success "Tomb $tombname closed: your bones will rest in peace."
+
+ done # loop across mounted tombs
+
return 0
}
# }}}
t@@ -1700,60 +1735,6 @@ resize_tomb() {
# }}}
-# print out an array of mounted tombs (internal use)
-# format is semi-colon separated list of attributes
-# if 1st arg is supplied, then list only that tomb
-# Positions in array:
-# 1 = full mapper path
-# 2 = mountpoint
-# 3 = filesystem type
-# 4 = mount options
-# 5 = tomb name
-list_tomb_mounts() {
- if [ "$1" = "" ]; then
- # list all open tombs
- mount -l |
- awk '
-BEGIN { main="" }
-/^\/dev\/mapper\/tomb/ {
- if(main==$1) next;
- print $1 ";" $3 ";" $5 ";" $6 ";" $7
- main=$1
-}
-'
- else
- # list a specific tomb
- mount -l |
- awk -vtomb="[$1]" '
-BEGIN { main="" }
-/^\/dev\/mapper\/tomb/ {
- if($7!=tomb) next;
- if(main==$1) next;
- print $1 ";" $3 ";" $5 ";" $6 ";" $7
- main=$1
-}
-'
- fi
-}
-
-# print out an array of mounted bind hooks (internal use)
-# format is semi-colon separated list of attributes
-# needs an argument: name of tomb whose hooks belong
-list_tomb_binds() {
- if [ "$1" = "" ]; then
- _failure "internal error: list_tomb_binds called without argument."; fi
-
- mount -l |
- awk -vtomb="$1" '
-BEGIN { main="" }
-/^\/dev\/mapper\/tomb/ {
- if($7!=tomb) next;
- if(main=="") { main=$1; next; }
- if(main==$1)
- print $1 ";" $3 ";" $5 ";" $6 ";" $7
-}
-'
-}
# {{{ - Index
# index files in all tombs for search