|
|
ff1465 |
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/bash/shared.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/bash/shared.sh
|
|
|
5fd106 |
index 737d725872d..08b62057bde 100644
|
|
|
ff1465 |
--- a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/bash/shared.sh
|
|
|
ff1465 |
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/bash/shared.sh
|
|
|
ff1465 |
@@ -1,7 +1,11 @@
|
|
|
5fd106 |
# platform = multi_platform_all
|
|
|
ff1465 |
+# reboot = true
|
|
|
ff1465 |
+# strategy = enable
|
|
|
ff1465 |
+# complexity = low
|
|
|
ff1465 |
+# disruption = low
|
|
|
ff1465 |
|
|
|
ff1465 |
if ! grep -x ' case "$name" in sshd|login) exec tmux ;; esac' /etc/bashrc; then
|
|
|
ff1465 |
- cat >> /etc/bashrc <<'EOF'
|
|
|
ff1465 |
+ cat >> /etc/profile.d/tmux.sh <<'EOF'
|
|
|
ff1465 |
if [ "$PS1" ]; then
|
|
|
ff1465 |
parent=$(ps -o ppid= -p $$)
|
|
|
ff1465 |
name=$(ps -o comm= -p $parent)
|
|
|
ff1465 |
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/oval/shared.xml b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/oval/shared.xml
|
|
|
5fd106 |
index 00ac349e292..4cb2f9e0e04 100644
|
|
|
ff1465 |
--- a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/oval/shared.xml
|
|
|
ff1465 |
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/oval/shared.xml
|
|
|
ff1465 |
@@ -4,21 +4,27 @@
|
|
|
ff1465 |
<criteria comment="Check exec tmux configured at the end of bashrc" operator="AND">
|
|
|
ff1465 |
|
|
|
ff1465 |
test_ref="test_configure_bashrc_exec_tmux" />
|
|
|
ff1465 |
+ <criterion comment="check tmux is running" test_ref="test_tmux_running"/>
|
|
|
ff1465 |
</criteria>
|
|
|
ff1465 |
</definition>
|
|
|
ff1465 |
-
|
|
|
ff1465 |
+
|
|
|
ff1465 |
comment="check tmux is configured to exec on the last line of /etc/bashrc"
|
|
|
ff1465 |
id="test_configure_bashrc_exec_tmux" version="1">
|
|
|
ff1465 |
<ind:object object_ref="obj_configure_bashrc_exec_tmux" />
|
|
|
ff1465 |
- <ind:state state_ref="state_configure_bashrc_exec_tmux" />
|
|
|
ff1465 |
</ind:textfilecontent54_test>
|
|
|
ff1465 |
<ind:textfilecontent54_object id="obj_configure_bashrc_exec_tmux" version="1">
|
|
|
ff1465 |
<ind:behaviors singleline="true" multiline="false" />
|
|
|
ff1465 |
- <ind:filepath>/etc/bashrc</ind:filepath>
|
|
|
ff1465 |
- <ind:pattern operation="pattern match">^(.*)$</ind:pattern>
|
|
|
ff1465 |
- <ind:instance datatype="int">1</ind:instance>
|
|
|
ff1465 |
+ <ind:filepath operation="pattern match">^/etc/bashrc$|^/etc/profile\.d/.*$</ind:filepath>
|
|
|
ff1465 |
+ <ind:pattern operation="pattern match">if \[ "\$PS1" \]; then\n\s+parent=\$\(ps -o ppid= -p \$\$\)\n\s+name=\$\(ps -o comm= -p \$parent\)\n\s+case "\$name" in sshd\|login\) exec tmux ;; esac\nfi</ind:pattern>
|
|
|
ff1465 |
+ <ind:instance datatype="int" operation="greater than or equal">1</ind:instance>
|
|
|
ff1465 |
</ind:textfilecontent54_object>
|
|
|
ff1465 |
- <ind:textfilecontent54_state id="state_configure_bashrc_exec_tmux" version="1">
|
|
|
ff1465 |
- <ind:subexpression datatype="string" operation="pattern match">if \[ "\$PS1" \]; then\n\s+parent=\$\(ps -o ppid= -p \$\$\)\n\s+name=\$\(ps -o comm= -p \$parent\)\n\s+case "\$name" in sshd\|login\) exec tmux ;; esac\nfi</ind:subexpression>
|
|
|
ff1465 |
- </ind:textfilecontent54_state>
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+ <unix:process58_test check="all" id="test_tmux_running" comment="is tmux running" version="1">
|
|
|
ff1465 |
+ <unix:object object_ref="obj_tmux_running"/>
|
|
|
ff1465 |
+ </unix:process58_test>
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+ <unix:process58_object id="obj_tmux_running" version="1">
|
|
|
ff1465 |
+ <unix:command_line operation="pattern match">^tmux(?:|[\s]+.*)$</unix:command_line>
|
|
|
ff1465 |
+ <unix:pid datatype="int" operation="greater than">0</unix:pid>
|
|
|
ff1465 |
+ </unix:process58_object>
|
|
|
ff1465 |
</def-group>
|
|
|
ff1465 |
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/rule.yml b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/rule.yml
|
|
|
5fd106 |
index 3ba0f4a2d8f..7afc5fc5e6b 100644
|
|
|
ff1465 |
--- a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/rule.yml
|
|
|
ff1465 |
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/rule.yml
|
|
|
ff1465 |
@@ -7,12 +7,20 @@ title: 'Support session locking with tmux'
|
|
|
ff1465 |
description: |-
|
|
|
ff1465 |
The <tt>tmux</tt> terminal multiplexer is used to implement
|
|
|
ff1465 |
automatic session locking. It should be started from
|
|
|
ff1465 |
- <tt>/etc/bashrc</tt>.
|
|
|
ff1465 |
+ <tt>/etc/bashrc</tt> or drop-in files within <tt>/etc/profile.d/</tt>.
|
|
|
ff1465 |
+ Additionally it must be ensured that the <tt>tmux</tt> process is running
|
|
|
ff1465 |
+ and it can be verified with the following command:
|
|
|
ff1465 |
+ ps all | grep tmux | grep -v grep
|
|
|
ff1465 |
|
|
|
ff1465 |
rationale: |-
|
|
|
ff1465 |
Unlike <tt>bash</tt> itself, the <tt>tmux</tt> terminal multiplexer
|
|
|
ff1465 |
provides a mechanism to lock sessions after period of inactivity.
|
|
|
ff1465 |
|
|
|
ff1465 |
+warnings:
|
|
|
ff1465 |
+ - general: |-
|
|
|
ff1465 |
+ The remediation does not start the tmux process, so it must be
|
|
|
ff1465 |
+ manually started or have the system rebooted after applying the fix.
|
|
|
ff1465 |
+
|
|
|
ff1465 |
severity: medium
|
|
|
ff1465 |
|
|
|
ff1465 |
identifiers:
|
|
|
5fd106 |
@@ -26,17 +34,21 @@ references:
|
|
|
5fd106 |
stigid@ol8: OL08-00-020041
|
|
|
ff1465 |
stigid@rhel8: RHEL-08-020041
|
|
|
ff1465 |
|
|
|
ff1465 |
-ocil_clause: 'exec tmux is not present at the end of bashrc'
|
|
|
ff1465 |
+ocil_clause: 'exec tmux is not present at the end of bashrc or tmux process is not running'
|
|
|
ff1465 |
|
|
|
ff1465 |
ocil: |-
|
|
|
ff1465 |
To verify that tmux is configured to execute,
|
|
|
ff1465 |
run the following command:
|
|
|
ff1465 |
- $ grep -A1 -B3 "case ..name. in sshd|login) exec tmux ;; esac" /etc/bashrc
|
|
|
ff1465 |
+ $ grep -A1 -B3 "case ..name. in sshd|login) exec tmux ;; esac" /etc/bashrc /etc/profile.d/*
|
|
|
ff1465 |
The output should return the following:
|
|
|
ff1465 |
if [ "$PS1" ]; then
|
|
|
ff1465 |
parent=$(ps -o ppid= -p $$)
|
|
|
ff1465 |
name=$(ps -o comm= -p $parent)
|
|
|
ff1465 |
case "$name" in sshd|login) exec tmux ;; esac
|
|
|
ff1465 |
fi
|
|
|
ff1465 |
+ To verify that the tmux process is running,
|
|
|
ff1465 |
+ run the following command:
|
|
|
ff1465 |
+ ps all | grep tmux | grep -v grep
|
|
|
ff1465 |
+ If the command does not produce output, this is a finding.
|
|
|
ff1465 |
|
|
|
ff1465 |
platform: machine
|
|
|
ff1465 |
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value.pass.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value.pass.sh
|
|
|
ff1465 |
new file mode 100644
|
|
|
5fd106 |
index 00000000000..221c18665ef
|
|
|
ff1465 |
--- /dev/null
|
|
|
ff1465 |
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value.pass.sh
|
|
|
ff1465 |
@@ -0,0 +1,12 @@
|
|
|
ff1465 |
+#!/bin/bash
|
|
|
ff1465 |
+# packages = tmux
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+cat >> /etc/bashrc <<'EOF'
|
|
|
ff1465 |
+if [ "$PS1" ]; then
|
|
|
ff1465 |
+ parent=$(ps -o ppid= -p $$)
|
|
|
ff1465 |
+ name=$(ps -o comm= -p $parent)
|
|
|
ff1465 |
+ case "$name" in sshd|login) exec tmux ;; esac
|
|
|
ff1465 |
+fi
|
|
|
ff1465 |
+EOF
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+tmux new-session -s root -d
|
|
|
ff1465 |
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value_d_directory.pass.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value_d_directory.pass.sh
|
|
|
ff1465 |
new file mode 100644
|
|
|
5fd106 |
index 00000000000..1702bb17e79
|
|
|
ff1465 |
--- /dev/null
|
|
|
ff1465 |
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value_d_directory.pass.sh
|
|
|
ff1465 |
@@ -0,0 +1,13 @@
|
|
|
ff1465 |
+#!/bin/bash
|
|
|
ff1465 |
+# packages = tmux
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+cat >> /etc/profile.d/00-complianceascode.conf <<'EOF'
|
|
|
ff1465 |
+if [ "$PS1" ]; then
|
|
|
ff1465 |
+ parent=$(ps -o ppid= -p $$)
|
|
|
ff1465 |
+ name=$(ps -o comm= -p $parent)
|
|
|
ff1465 |
+ case "$name" in sshd|login) exec tmux ;; esac
|
|
|
ff1465 |
+fi
|
|
|
ff1465 |
+EOF
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+tmux new-session -s root -d
|
|
|
5fd106 |
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/duplicate_value_multiple_files.pass.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/duplicate_value_multiple_files.pass.sh
|
|
|
ff1465 |
new file mode 100644
|
|
|
5fd106 |
index 00000000000..16d4acfcb5a
|
|
|
ff1465 |
--- /dev/null
|
|
|
5fd106 |
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/duplicate_value_multiple_files.pass.sh
|
|
|
5fd106 |
@@ -0,0 +1,20 @@
|
|
|
ff1465 |
+#!/bin/bash
|
|
|
5fd106 |
+# packages = tmux
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+cat >> /etc/profile.d/00-complianceascode.conf <<'EOF'
|
|
|
ff1465 |
+if [ "$PS1" ]; then
|
|
|
ff1465 |
+ parent=$(ps -o ppid= -p $$)
|
|
|
ff1465 |
+ name=$(ps -o comm= -p $parent)
|
|
|
ff1465 |
+ case "$name" in sshd|login) exec tmux ;; esac
|
|
|
ff1465 |
+fi
|
|
|
ff1465 |
+EOF
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+cat >> /etc/bashrc <<'EOF'
|
|
|
ff1465 |
+if [ "$PS1" ]; then
|
|
|
ff1465 |
+ parent=$(ps -o ppid= -p $$)
|
|
|
ff1465 |
+ name=$(ps -o comm= -p $parent)
|
|
|
ff1465 |
+ case "$name" in sshd|login) exec tmux ;; esac
|
|
|
ff1465 |
+fi
|
|
|
ff1465 |
+EOF
|
|
|
5fd106 |
+
|
|
|
5fd106 |
+tmux new-session -s root -d
|
|
|
ff1465 |
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/tmux_not_running.fail.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/tmux_not_running.fail.sh
|
|
|
ff1465 |
new file mode 100644
|
|
|
5fd106 |
index 00000000000..6cb9d83efc5
|
|
|
ff1465 |
--- /dev/null
|
|
|
ff1465 |
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/tmux_not_running.fail.sh
|
|
|
ff1465 |
@@ -0,0 +1,13 @@
|
|
|
ff1465 |
+#!/bin/bash
|
|
|
ff1465 |
+# packages = tmux
|
|
|
ff1465 |
+# remediation = none
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+cat >> /etc/bashrc <<'EOF'
|
|
|
ff1465 |
+if [ "$PS1" ]; then
|
|
|
ff1465 |
+ parent=$(ps -o ppid= -p $$)
|
|
|
ff1465 |
+ name=$(ps -o comm= -p $parent)
|
|
|
ff1465 |
+ case "$name" in sshd|login) exec tmux ;; esac
|
|
|
ff1465 |
+fi
|
|
|
ff1465 |
+EOF
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+killall tmux || true
|
|
|
ff1465 |
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/wrong_value.fail.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/wrong_value.fail.sh
|
|
|
ff1465 |
new file mode 100644
|
|
|
5fd106 |
index 00000000000..f13a8b038e4
|
|
|
ff1465 |
--- /dev/null
|
|
|
ff1465 |
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/wrong_value.fail.sh
|
|
|
ff1465 |
@@ -0,0 +1,105 @@
|
|
|
ff1465 |
+#!/bin/bash
|
|
|
ff1465 |
+# packages = tmux
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+cat > /etc/bashrc <<'EOF'
|
|
|
ff1465 |
+# /etc/bashrc
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+# System wide functions and aliases
|
|
|
ff1465 |
+# Environment stuff goes in /etc/profile
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+# It's NOT a good idea to change this file unless you know what you
|
|
|
ff1465 |
+# are doing. It's much better to create a custom.sh shell script in
|
|
|
ff1465 |
+# /etc/profile.d/ to make custom changes to your environment, as this
|
|
|
ff1465 |
+# will prevent the need for merging in future updates.
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+# Prevent doublesourcing
|
|
|
ff1465 |
+if [ -z "$BASHRCSOURCED" ]; then
|
|
|
ff1465 |
+ BASHRCSOURCED="Y"
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+ # are we an interactive shell?
|
|
|
ff1465 |
+ if [ "$PS1" ]; then
|
|
|
ff1465 |
+ if [ -z "$PROMPT_COMMAND" ]; then
|
|
|
ff1465 |
+ case $TERM in
|
|
|
ff1465 |
+ xterm*|vte*)
|
|
|
ff1465 |
+ if [ -e /etc/sysconfig/bash-prompt-xterm ]; then
|
|
|
ff1465 |
+ PROMPT_COMMAND=/etc/sysconfig/bash-prompt-xterm
|
|
|
ff1465 |
+ elif [ "${VTE_VERSION:-0}" -ge 3405 ]; then
|
|
|
ff1465 |
+ PROMPT_COMMAND="__vte_prompt_command"
|
|
|
ff1465 |
+ else
|
|
|
ff1465 |
+ PROMPT_COMMAND='printf "\033]0;%s@%s:%s\007" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/\~}"'
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+ ;;
|
|
|
ff1465 |
+ screen*)
|
|
|
ff1465 |
+ if [ -e /etc/sysconfig/bash-prompt-screen ]; then
|
|
|
ff1465 |
+ PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
|
|
|
ff1465 |
+ else
|
|
|
ff1465 |
+ PROMPT_COMMAND='printf "\033k%s@%s:%s\033\\" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/\~}"'
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+ ;;
|
|
|
ff1465 |
+ *)
|
|
|
ff1465 |
+ [ -e /etc/sysconfig/bash-prompt-default ] && PROMPT_COMMAND=/etc/sysconfig/bash-prompt-default
|
|
|
ff1465 |
+ ;;
|
|
|
ff1465 |
+ esac
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+ # Turn on parallel history
|
|
|
ff1465 |
+ shopt -s histappend
|
|
|
ff1465 |
+ history -a
|
|
|
ff1465 |
+ # Turn on checkwinsize
|
|
|
ff1465 |
+ shopt -s checkwinsize
|
|
|
ff1465 |
+ [ "$PS1" = "\\s-\\v\\\$ " ] && PS1="[\u@\h \W]\\$ "
|
|
|
ff1465 |
+ # You might want to have e.g. tty in prompt (e.g. more virtual machines)
|
|
|
ff1465 |
+ # and console windows
|
|
|
ff1465 |
+ # If you want to do so, just add e.g.
|
|
|
ff1465 |
+ # if [ "$PS1" ]; then
|
|
|
ff1465 |
+ # PS1="[\u@\h:\l \W]\\$ "
|
|
|
ff1465 |
+ # fi
|
|
|
ff1465 |
+ # to your custom modification shell script in /etc/profile.d/ directory
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+ if ! shopt -q login_shell ; then # We're not a login shell
|
|
|
ff1465 |
+ # Need to redefine pathmunge, it gets undefined at the end of /etc/profile
|
|
|
ff1465 |
+ pathmunge () {
|
|
|
ff1465 |
+ case ":${PATH}:" in
|
|
|
ff1465 |
+ *:"$1":*)
|
|
|
ff1465 |
+ ;;
|
|
|
ff1465 |
+ *)
|
|
|
ff1465 |
+ if [ "$2" = "after" ] ; then
|
|
|
ff1465 |
+ PATH=$PATH:$1
|
|
|
ff1465 |
+ else
|
|
|
ff1465 |
+ PATH=$1:$PATH
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+ esac
|
|
|
ff1465 |
+ }
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+ # By default, we want umask to get set. This sets it for non-login shell.
|
|
|
ff1465 |
+ # Current threshold for system reserved uid/gids is 200
|
|
|
ff1465 |
+ # You could check uidgid reservation validity in
|
|
|
ff1465 |
+ # /usr/share/doc/setup-*/uidgid file
|
|
|
ff1465 |
+ if [ $UID -gt 199 ] && [ "`/usr/bin/id -gn`" = "`/usr/bin/id -un`" ]; then
|
|
|
ff1465 |
+ umask 002
|
|
|
ff1465 |
+ else
|
|
|
ff1465 |
+ umask 022
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+ SHELL=/bin/bash
|
|
|
ff1465 |
+ # Only display echos from profile.d scripts if we are no login shell
|
|
|
ff1465 |
+ # and interactive - otherwise just process them to set envvars
|
|
|
ff1465 |
+ for i in /etc/profile.d/*.sh; do
|
|
|
ff1465 |
+ if [ -r "$i" ]; then
|
|
|
ff1465 |
+ if [ "$PS1" ]; then
|
|
|
ff1465 |
+ . "$i"
|
|
|
ff1465 |
+ else
|
|
|
ff1465 |
+ . "$i" >/dev/null
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+ done
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+ unset i
|
|
|
ff1465 |
+ unset -f pathmunge
|
|
|
ff1465 |
+ fi
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+fi
|
|
|
ff1465 |
+# vim:ts=4:sw=4
|
|
|
ff1465 |
+EOF
|
|
|
ff1465 |
+
|
|
|
ff1465 |
+tmux new-session -s root -d
|