mirror of
https://github.com/Llewellynvdm/Tomb.git
synced 2024-11-04 20:37:55 +00:00
Sudo prompt for password made more visible to distinguish from other password prompts, addressing #171
This commit is contained in:
Jaromil
parent
46583fa445
commit
15ff5abe61
86
tomb
86
tomb
@ -59,10 +59,9 @@ typeset -a OLDARGS
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for arg in "${(@)argv}"; do OLDARGS+=("$arg"); done
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# Special command requirements
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typeset -a DD WIPE MKFS PINENTRY
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typeset -a DD WIPE PINENTRY
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DD=(dd)
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WIPE=(rm -f)
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MKFS=(sudo mkfs.ext3 -q -F -j -L)
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PINENTRY=(pinentry)
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# load zsh regex module
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@ -120,6 +119,17 @@ export TEXTDOMAIN=tomb
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# {{{ Safety functions
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# Wrap sudo with a more visible message
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_sudo() {
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local sudo_eng="[sudo] Enter password for user ::1 user:: to gain superuser privileges"
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local msg="$(gettext -s "$sudo_eng")"
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msg=${(S)msg//::1*::/$USER}
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sudo -p "
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$msg
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" ${@}
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}
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# Cleanup anything sensitive before exiting.
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_endgame() {
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@ -147,7 +157,7 @@ _endgame() {
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# Detach loop devices
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for l in $TOMBLOOPDEVS; do
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sudo losetup -d "$l"
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_sudo losetup -d "$l"
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done
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unset TOMBLOOPDEVS
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@ -249,7 +259,7 @@ _plot() {
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_tmp_create() {
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[[ -d "$TMPPREFIX" ]] || {
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# we create the tempdir with the sticky bit on
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sudo mkdir -m 1777 "$TMPPREFIX"
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_sudo mkdir -m 1777 "$TMPPREFIX"
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[[ $? == 0 ]] || _failure "Fatal error creating the temporary directory: ::1 temp dir::" "$TMPPREFIX"
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}
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@ -293,7 +303,7 @@ _ensure_safe_swap() {
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[[ -z "$swaps" ]] && return 0 # No swap partition is active
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for s in $=swaps; do
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bone=$(sudo file $s)
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bone=$(_sudo file $s)
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if [[ "$bone" =~ "swap file" ]]; then
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# It's a regular (unencrypted) swap file
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r=1
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@ -303,13 +313,13 @@ _ensure_safe_swap() {
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# Might link to a block
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r=1
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[[ "/dev/mapper" == "${s%/*}" ]] || { break }
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is_crypt=$(sudo dmsetup status "$s" | awk '/crypt/ {print $3}')
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is_crypt=$(_sudo dmsetup status "$s" | awk '/crypt/ {print $3}')
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[[ $is_crypt == "crypt" ]] && { r=2 }
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elif [[ "$bone" =~ "block special" ]]; then
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# It's a block
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r=1
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is_crypt=`sudo dmsetup status "$s" | awk '/crypt/ {print $3}'`
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is_crypt=`_sudo dmsetup status "$s" | awk '/crypt/ {print $3}'`
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[[ $is_crypt == "crypt" ]] && { r=2 } || { break }
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fi
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@ -536,7 +546,7 @@ lo_mount() {
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tpath="$1"
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# check if we have support for loop mounting
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_nstloop=`sudo losetup -f`
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_nstloop=`_sudo losetup -f`
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[[ $? = 0 ]] || {
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_warning "Loop mount of volumes is not possible on this machine, this error"
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_warning "often occurs on VPS and kernels that don't provide the loop module."
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@ -544,7 +554,7 @@ lo_mount() {
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_failure "Operation aborted."
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}
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sudo losetup -f "$tpath" # allocates the next loopback for our file
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_sudo losetup -f "$tpath" # allocates the next loopback for our file
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TOMBLOOPDEVS+=("$_nstloop") # add to array of lodevs used
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@ -1040,7 +1050,7 @@ ask_key_password() {
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# call cryptsetup with arguments using the currently known secret
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# echo flags eliminate newline and disable escape (BSD_ECHO)
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_cryptsetup() {
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print -R -n - "$TOMBSECRET" | sudo cryptsetup --key-file - ${=@}
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print -R -n - "$TOMBSECRET" | _sudo cryptsetup --key-file - ${=@}
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return $?
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}
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@ -1498,7 +1508,7 @@ forge_key() {
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_warning "Dumping contents to screen:"
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print "${mapfile[$TOMBKEY]}"
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_warning "--"
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sudo umount ${keytmp}
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_sudo umount ${keytmp}
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rm -r $keytmp
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_failure "Operation aborted."
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}
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@ -1544,7 +1554,7 @@ lock_tomb_with_key() {
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_verbose "Loop mounted on ::1 mount point::" $nstloop
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_message "Checking if the tomb is empty (we never step on somebody else's bones)."
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sudo cryptsetup isLuks ${nstloop}
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_sudo cryptsetup isLuks ${nstloop}
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if [ $? = 0 ]; then
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# is it a LUKS encrypted nest? then bail out and avoid reformatting it
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_warning "The tomb was already locked with another key."
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@ -1586,14 +1596,14 @@ lock_tomb_with_key() {
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_failure "Operation aborted." }
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_message "Formatting your Tomb with Ext3/Ext4 filesystem."
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${=MKFS} $TOMBNAME /dev/mapper/tomb.tmp
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_sudo mkfs.ext4 -q -F -j -L $TOMBNAME /dev/mapper/tomb.tmp
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[[ $? == 0 ]] || {
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_warning "Tomb format returned an error."
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_warning "Your tomb ::1 tomb file:: may be corrupted." $TOMBFILE }
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# Sync
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sudo cryptsetup luksClose tomb.tmp
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_sudo cryptsetup luksClose tomb.tmp
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_message "Done locking ::1 tomb name:: using Luks dm-crypt ::2 cipher::" $TOMBNAME $cipher
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_success "Your tomb is ready in ::1 tomb path:: and secured with key ::2 tomb key::" \
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@ -1619,7 +1629,7 @@ change_tomb_key() {
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lo_mount $TOMBPATH
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nstloop=`lo_new`
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sudo cryptsetup isLuks ${nstloop}
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_sudo cryptsetup isLuks ${nstloop}
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# is it a LUKS encrypted nest? we check one more time
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[[ $? == 0 ]] || {
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_failure "Not a valid LUKS encrypted volume: ::1 volume::" $TOMBPATH }
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@ -1651,7 +1661,7 @@ change_tomb_key() {
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old_secret=$TOMBSECRET
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# luksOpen the tomb (not really mounting, just on the loopback)
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print -R -n - "$old_secret" | sudo cryptsetup --key-file - \
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print -R -n - "$old_secret" | _sudo cryptsetup --key-file - \
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luksOpen ${nstloop} ${mapper}
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[[ $? == 0 ]] || _failure "Unexpected error in luksOpen."
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@ -1673,12 +1683,12 @@ change_tomb_key() {
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tmpnewkey=$TOMBTMP
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print -R -n - "$TOMBSECRET" >> $tmpnewkey
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print -R -n - "$old_secret" | sudo cryptsetup --key-file - \
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print -R -n - "$old_secret" | _sudo cryptsetup --key-file - \
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luksChangeKey "$nstloop" "$tmpnewkey"
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[[ $? == 0 ]] || _failure "Unexpected error in luksChangeKey."
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sudo cryptsetup luksClose "${mapper}" || _failure "Unexpected error in luksClose."
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_sudo cryptsetup luksClose "${mapper}" || _failure "Unexpected error in luksClose."
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_success "Succesfully changed key for tomb: ::1 tomb file::" $TOMBFILE
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_message "The new key is: ::1 new key::" $TOMBKEYFILE
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@ -1717,13 +1727,13 @@ mount_tomb() {
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lo_mount $TOMBPATH
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nstloop=`lo_new`
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sudo cryptsetup isLuks ${nstloop} || {
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_sudo cryptsetup isLuks ${nstloop} || {
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# is it a LUKS encrypted nest? see cryptsetup(1)
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_failure "::1 tomb file:: is not a valid Luks encrypted storage file." $TOMBFILE }
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_message "This tomb is a valid LUKS encrypted device."
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luksdump="`sudo cryptsetup luksDump ${nstloop}`"
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luksdump="`_sudo cryptsetup luksDump ${nstloop}`"
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tombdump=(`print $luksdump | awk '
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/^Cipher name/ {print $3}
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/^Cipher mode/ {print $3}
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@ -1765,7 +1775,7 @@ mount_tomb() {
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lo_preserve "$nstloop"
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# array: [ cipher, keysize, loopdevice ]
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tombstat=(`sudo cryptsetup status ${mapper} | awk '
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tombstat=(`_sudo cryptsetup status ${mapper} | awk '
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/cipher:/ {print $2}
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/keysize:/ {print $2}
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/device:/ {print $2}'`)
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@ -1773,12 +1783,12 @@ mount_tomb() {
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_verbose "Key size is ::1 size:: for cipher ::2 cipher::" $tombstat[2] $tombstat[1]
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_message "Checking filesystem via ::1::" $tombstat[3]
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sudo fsck -p -C0 /dev/mapper/${mapper}
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_sudo fsck -p -C0 /dev/mapper/${mapper}
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_verbose "Tomb engraved as ::1 tomb name::" $TOMBNAME
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sudo tune2fs -L $TOMBNAME /dev/mapper/${mapper} > /dev/null
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_sudo tune2fs -L $TOMBNAME /dev/mapper/${mapper} > /dev/null
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# we need root from here on
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sudo mkdir -p $tombmount
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_sudo mkdir -p $tombmount
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# Default mount options are overridden with the -o switch
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{ option_is_set -o } && {
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@ -1787,7 +1797,7 @@ mount_tomb() {
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# TODO: safety check MOUNTOPTS
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# safe_mount_options && \
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sudo mount -o $MOUNTOPTS /dev/mapper/${mapper} ${tombmount}
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_sudo mount -o $MOUNTOPTS /dev/mapper/${mapper} ${tombmount}
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# Clean up if the mount failed
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[[ $? == 0 ]] || {
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_warning "Error mounting ::1 mapper:: on ::2 tombmount::" $mapper $tombmount
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@ -1795,13 +1805,13 @@ mount_tomb() {
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_warning "Are mount options '::1 mount options::' valid?" $MOUNTOPTS
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# TODO: move cleanup to _endgame()
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[[ -d $tombmount ]] && rmdir $tombmount
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[[ -e /dev/mapper/$mapper ]] && sudo cryptsetup luksClose $mapper
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[[ -e /dev/mapper/$mapper ]] && _sudo cryptsetup luksClose $mapper
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# The loop is taken care of in _endgame()
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_failure "Cannot mount ::1 tomb name::" $TOMBNAME
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}
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sudo chown $UID:$GID ${tombmount}
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sudo chmod 0711 ${tombmount}
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_sudo chown $UID:$GID ${tombmount}
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_sudo chmod 0711 ${tombmount}
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_success "Success opening ::1 tomb file:: on ::2 mount point::" $TOMBFILE $tombmount
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@ -1900,7 +1910,7 @@ exec_safe_bind_hooks() {
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[[ "${${maps[$dir]}[1]}" == "/" || "${${maps[$dir]}[1,2]}" == ".." ]] && {
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_warning "bind-hooks map format: local/to/tomb local/to/\$HOME. Rolling back"
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for dir in ${mounted}; do sudo umount $dir; done
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for dir in ${mounted}; do _sudo umount $dir; done
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return 1 }
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if [[ ! -r "$HOME/${maps[$dir]}" ]]; then
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@ -1908,7 +1918,7 @@ exec_safe_bind_hooks() {
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elif [[ ! -r "$mnt/$dir" ]]; then
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_warning "bind-hook source not found in tomb, skipping ::1 mount point::/::2 subdir::" $mnt $dir
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else
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sudo mount -o bind,$MOUNTOPTS $mnt/$dir $HOME/${maps[$dir]} \
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_sudo mount -o bind,$MOUNTOPTS $mnt/$dir $HOME/${maps[$dir]} \
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&& mounted+=("$HOME/${maps[$dir]}")
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fi
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done
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@ -2318,17 +2328,17 @@ resize_tomb() {
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_cryptsetup luksOpen ${nstloop} ${mapper} || {
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_failure "Failure mounting the encrypted file." }
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sudo cryptsetup resize "${mapper}" || {
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_sudo cryptsetup resize "${mapper}" || {
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_failure "cryptsetup failed to resize ::1 mapper::" $mapper }
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sudo e2fsck -p -f /dev/mapper/${mapper} || {
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_sudo e2fsck -p -f /dev/mapper/${mapper} || {
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_failure "e2fsck failed to check ::1 mapper::" $mapper }
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sudo resize2fs /dev/mapper/${mapper} || {
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_sudo resize2fs /dev/mapper/${mapper} || {
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_failure "resize2fs failed to resize ::1 mapper::" $mapper }
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# close and free the loop device
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sudo cryptsetup luksClose "${mapper}"
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_sudo cryptsetup luksClose "${mapper}"
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return 0
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}
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@ -2389,7 +2399,7 @@ umount_tomb() {
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bind_mapper="${b[(ws:;:)1]}"
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bind_mount="${b[(ws:;:)2]}"
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_message "Closing tomb bind hook: ::1 hook::" $bind_mount
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sudo umount $bind_mount || {
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_sudo umount $bind_mount || {
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[[ -n $SLAM ]] && {
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_success "Slamming tomb: killing all processes using this hook."
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slam_tomb "$bind_mount" || _failure "Cannot slam the bind hook ::1 hook::" $bind_mount
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@ -2405,19 +2415,19 @@ umount_tomb() {
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exec_safe_post_hooks ${tombmount%%/} close }
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_verbose "Performing umount of ::1 mount point::" $tombmount
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sudo umount ${tombmount}
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_sudo umount ${tombmount}
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[[ $? = 0 ]] || { _failure "Tomb is busy, cannot umount!" }
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# If we used a default mountpoint and is now empty, delete it
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[[ "$tombmount" -regex-match "[/run]?/media[/$_USER]?/$tombname.tomb" ]] && {
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rmdir $tombmount }
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sudo cryptsetup luksClose $mapper
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_sudo cryptsetup luksClose $mapper
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[[ $? == 0 ]] || {
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_failure "Error occurred in cryptsetup luksClose ::1 mapper::" $mapper }
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# Normally the loopback device is detached when unused
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[[ -e "/dev/$tombloop" ]] && sudo losetup -d "/dev/$tombloop"
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[[ -e "/dev/$tombloop" ]] && _sudo losetup -d "/dev/$tombloop"
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[[ $? = 0 ]] || {
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_verbose "/dev/$tombloop was already closed." }
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