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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
Cokiee Shell
| Current Path : /var/lib/dpkg/info/ |
| Current File : //var/lib/dpkg/info/openssh-server.preinst |
#!/bin/sh -e
ETC_DEFAULT_SSH='# Default settings for openssh-server. This file is sourced by /bin/sh from
# /etc/init.d/ssh.
# Options to pass to sshd
SSHD_OPTS=
'
ETC_INIT_D_SSH='#! /bin/sh
### BEGIN INIT INFO
# Provides: sshd
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop:
# Short-Description: OpenBSD Secure Shell server
### END INIT INFO
set -e
# /etc/init.d/ssh: start and stop the OpenBSD "secure shell(tm)" daemon
test -x /usr/sbin/sshd || exit 0
( /usr/sbin/sshd -\? 2>&1 | grep -q OpenSSH ) 2>/dev/null || exit 0
umask 022
if test -f /etc/default/ssh; then
. /etc/default/ssh
fi
. /lib/lsb/init-functions
if [ -n "$2" ]; then
SSHD_OPTS="$SSHD_OPTS $2"
fi
# Are we running from init?
run_by_init() {
([ "$previous" ] && [ "$runlevel" ]) || [ "$runlevel" = S ]
}
check_for_no_start() {
# forget it if we'\''re trying to start, and /etc/ssh/sshd_not_to_be_run exists
if [ -e /etc/ssh/sshd_not_to_be_run ]; then
if [ "$1" = log_end_msg ]; then
log_end_msg 0 || true
fi
if ! run_by_init; then
log_action_msg "OpenBSD Secure Shell server not in use (/etc/ssh/sshd_not_to_be_run)" || true
fi
exit 0
fi
}
check_dev_null() {
if [ ! -c /dev/null ]; then
if [ "$1" = log_end_msg ]; then
log_end_msg 1 || true
fi
if ! run_by_init; then
log_action_msg "/dev/null is not a character device!" || true
fi
exit 1
fi
}
check_privsep_dir() {
# Create the PrivSep empty dir if necessary
if [ ! -d /var/run/sshd ]; then
mkdir /var/run/sshd
chmod 0755 /var/run/sshd
fi
}
check_config() {
if [ ! -e /etc/ssh/sshd_not_to_be_run ]; then
/usr/sbin/sshd $SSHD_OPTS -t || exit 1
fi
}
export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"
case "$1" in
start)
check_privsep_dir
check_for_no_start
check_dev_null
log_daemon_msg "Starting OpenBSD Secure Shell server" "sshd" || true
if start-stop-daemon --start --quiet --oknodo --pidfile /var/run/sshd.pid --exec /usr/sbin/sshd -- $SSHD_OPTS; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
stop)
log_daemon_msg "Stopping OpenBSD Secure Shell server" "sshd" || true
if start-stop-daemon --stop --quiet --oknodo --pidfile /var/run/sshd.pid; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
reload|force-reload)
check_for_no_start
check_config
log_daemon_msg "Reloading OpenBSD Secure Shell server'\''s configuration" "sshd" || true
if start-stop-daemon --stop --signal 1 --quiet --oknodo --pidfile /var/run/sshd.pid --exec /usr/sbin/sshd; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
restart)
check_privsep_dir
check_config
log_daemon_msg "Restarting OpenBSD Secure Shell server" "sshd" || true
start-stop-daemon --stop --quiet --oknodo --retry 30 --pidfile /var/run/sshd.pid
check_for_no_start log_end_msg
check_dev_null log_end_msg
if start-stop-daemon --start --quiet --oknodo --pidfile /var/run/sshd.pid --exec /usr/sbin/sshd -- $SSHD_OPTS; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
try-restart)
check_privsep_dir
check_config
log_daemon_msg "Restarting OpenBSD Secure Shell server" "sshd" || true
RET=0
start-stop-daemon --stop --quiet --retry 30 --pidfile /var/run/sshd.pid || RET="$?"
case $RET in
0)
# old daemon stopped
check_for_no_start log_end_msg
check_dev_null log_end_msg
if start-stop-daemon --start --quiet --oknodo --pidfile /var/run/sshd.pid --exec /usr/sbin/sshd -- $SSHD_OPTS; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
1)
# daemon not running
log_progress_msg "(not running)" || true
log_end_msg 0 || true
;;
*)
# failed to stop
log_progress_msg "(failed to stop)" || true
log_end_msg 1 || true
;;
esac
;;
status)
status_of_proc -p /var/run/sshd.pid /usr/sbin/sshd sshd && exit 0 || exit $?
;;
*)
log_action_msg "Usage: /etc/init.d/ssh {start|stop|reload|force-reload|restart|try-restart|status}" || true
exit 1
esac
exit 0
'
ETC_PAM_D_SSH='# PAM configuration for the Secure Shell service
# Read environment variables from /etc/environment and
# /etc/security/pam_env.conf.
auth required pam_env.so # [1]
# In Debian 4.0 (etch), locale-related environment variables were moved to
# /etc/default/locale, so read that as well.
auth required pam_env.so envfile=/etc/default/locale
# Standard Un*x authentication.
@include common-auth
# Disallow non-root logins when /etc/nologin exists.
account required pam_nologin.so
# Uncomment and edit /etc/security/access.conf if you need to set complex
# access limits that are hard to express in sshd_config.
# account required pam_access.so
# Standard Un*x authorization.
@include common-account
# Standard Un*x session setup and teardown.
@include common-session
# Print the message of the day upon successful login.
# This includes a dynamically generated part from /run/motd.dynamic
# and a static (admin-editable) part from /etc/motd.
session optional pam_motd.so motd=/run/motd.dynamic noupdate
session optional pam_motd.so # [1]
# Print the status of the user'\''s mailbox upon successful login.
session optional pam_mail.so standard noenv # [1]
# Set up user limits from /etc/security/limits.conf.
session required pam_limits.so
# Set up SELinux capabilities (need modified pam)
# session required pam_selinux.so multiple
# Standard Un*x password updating.
@include common-password
'
action=$1
version=$2
prepare_transfer_conffile () {
CONFFILE="$1"
TEXT="$2"
MODE="$3"
[ "$CONFFILES" ] || return 0
[ -e "$CONFFILE" ] || return 0
md5sum="$(md5sum "$CONFFILE" |sed -e 's/ .*//')"
old_md5sum="$(echo "$CONFFILES" | awk '$1 == "'"$CONFFILE"'" { print $2 }')"
if [ "$md5sum" = "$old_md5sum" ]; then
echo >&2 "Transferring ownership of conffile $CONFFILE ..."
# We have to write out the desired new text of the conffile,
# which is tricky in the preinst, hence the nasty way we
# have to hardcode the text here. Fortunately, this is only
# necessary with sarge's dpkg and older.
if echo "$TEXT" | head -n1 | grep -q '^@.*@$'; then
echo >&2 'Unsubstituted conffile text! Please report this bug.'
exit 1
fi
printf '%s' "$TEXT" >"$CONFFILE.dpkg-new"
chmod "$MODE" "$CONFFILE.dpkg-new"
mv -f "$CONFFILE" "$CONFFILE.moved-by-preinst"
mv -f "$CONFFILE.dpkg-new" "$CONFFILE"
return 0
fi
}
prepare_mv_conffile () {
CONFFILE="$1"
[ -e "$CONFFILE" ] || return 0
md5sum="$(md5sum "$CONFFILE" | sed -e 's/ .*//')"
old_md5sum="$(dpkg-query -W -f '${Conffiles}\n' openssh-server 2>/dev/null | sed 's/^ *//' | awk '$1 == "'"$CONFFILE"'" { print $2 }')"
if [ "$md5sum" = "$old_md5sum" ]; then
mv -f "$CONFFILE" "$CONFFILE.dpkg-old"
else
mv -f "$CONFFILE" "$CONFFILE.moving"
fi
}
if [ -d /etc/ssh-nonfree ] && [ ! -d /etc/ssh ]; then
version=1.2.27
fi
if [ "$action" = upgrade ] || [ "$action" = install ]
then
# check if debconf is missing
if ! test -f /usr/share/debconf/confmodule
then
cat <<EOF
WARNING: ssh's pre-configuration script relies on debconf to tell you
about some problems that might prevent you from logging in if you are
upgrading from the old, Non-free version of ssh.
If this is a new installation, you don't need to worry about this.
Just go ahead and install ssh (make sure to read .../ssh/README.Debian).
If you are upgrading, but you have alternative ways of logging into
the machine (i.e. you're sitting in front of it, or you have telnetd
running), then you also don't need to worry too much, because you can
fix it up afterwards if there's a problem.
If you're upgrading from an older (non-free) version of ssh, and ssh
is the only way you have to access this machine, then you should
probably abort the installation of ssh, install debconf, and then
retry the installation of ssh.
EOF
echo -n "Do you want to install SSH anyway [yN]: "
read input
expr "$input" : '[Yy]' >/dev/null || exit 1
# work around for missing debconf
db_get() { : ; }
RET=true
if [ -d /etc/ssh-nonfree ] && [ ! -d /etc/ssh ]; then
cp -a /etc/ssh-nonfree /etc/ssh
fi
else
# Source debconf library.
. /usr/share/debconf/confmodule
db_version 2.0
fi
db_get ssh/use_old_init_script
if [ "$RET" = "false" ]; then
echo "ssh config: Aborting because ssh/use_old_init_script = false" >&2
exit 1
fi
# deal with upgrading from pre-OpenSSH versions
key=/etc/ssh/ssh_host_key
export key
if [ -n "$version" ] && [ -x /usr/bin/ssh-keygen ] && [ -f $key ] &&
dpkg --compare-versions "$version" lt 1.2.28
then
# make sure that keys get updated to get rid of IDEA
#
# N.B. this only works because we've still got the old
# nonfree ssh-keygen at this point
#
# First, check if we need to bother
printf '\0\0' | 3<&0 sh -c \
'dd if=$key bs=1 skip=32 count=2 2>/dev/null | cmp -s - /dev/fd/3' || {
# this means that bytes 32&33 of the key were not both zero, in which
# case the key is encrypted, which we need to fix
chmod 600 $key
ssh-keygen -u -f $key >/dev/null
if which restorecon >/dev/null 2>&1; then
restorecon "$key.pub"
fi
}
fi
if dpkg --compare-versions "$version" lt 0; then
CONFFILES="$(dpkg-query -W -f '${Conffiles}\n' ssh 2>/dev/null | sed 's/^ *//')"
prepare_transfer_conffile /etc/default/ssh "$ETC_DEFAULT_SSH" 0644
prepare_transfer_conffile /etc/init.d/ssh "$ETC_INIT_D_SSH" 0755
prepare_transfer_conffile /etc/pam.d/ssh "$ETC_PAM_D_SSH" 0644
fi
if dpkg --compare-versions "$version" lt 1:4.7p1-4; then
prepare_mv_conffile /etc/pam.d/ssh
fi
if dpkg --compare-versions "$version" lt 1:5.5p1-6 && \
[ -d /var/run/sshd ]; then
# make sure /var/run/sshd is not removed on upgrades
touch /var/run/sshd/.placeholder
fi
fi
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