jailsetup.sh

   1 #!/bin/sh
   2 # The Girocco jail setup script
   3 #
   4 # If the first parameter is "dbonly", setup the database only
   5 #
   6 # We are designed to set up the chroot based on the output of
   7 # `uname -s` by sourcing a suitable system-specific script.
   8 # Unrecognized systems will generate an error.  When using
   9 # "dbonly" the setup of the chroot binaries is skipped so the
  10 # output of `uname -s` does not matter in that case.
  11
  12 set -e
  13
  14 curdir="$(pwd)"
  15 srcdir="$curdir/src"
  16 getent="$srcdir/getent"
  17 . ./shlib.sh
  18
  19 # find_std_utility should always come up with the full path to the standard
  20 # version of the utility whose name is passed as "$1"
  21 getconf="/usr/bin/getconf"
  22 [ -x "$getconf" ] || getconf="/bin/getconf"
  23 [ -x "$getconf" ] || getconf="getconf"
  24 stdpath="$("unset" -f command; "command" "$getconf" "PATH" 2>/dev/null)" || :
  25 ":" "${stdpath:=/bin:/usr/bin}"
  26 stdpath="$stdpath:/sbin:/usr/sbin"
  27 find_std_utility() (
  28         "unset" -f unalias command "$1" >/dev/null 2>&1 || :
  29         "unalias" -a >/dev/null 2>&1 || :
  30         PATH="$stdpath" && "export" PATH || :
  31         "command" -v "$1"
  32 ) 2>/dev/null
  33
  34 dbonly=
  35 [ "$1" != "dbonly" ] || dbonly=1
  36
  37 reserved_users="root sshd _sshd mob git lock bundle nobody everyone $cfg_cgi_user $cfg_mirror_user"
  38
  39 # Require either sshd or _sshd user unless "dbonly"
  40 sshd_user=sshd
  41 if ! "$getent" passwd sshd >/dev/null && ! "$getent" passwd _sshd >/dev/null; then
  42         if [ -n "$dbonly" ]; then
  43                 if ! [ -s etc/passwd ]; then
  44                         # Only complain on initial etc/passwd creation
  45                         echo "WARNING: no sshd or _sshd user, omitting entries from chroot etc/passwd"
  46                 fi
  47                 sshd_user=
  48         else
  49                 echo "*** Error: You do not have required sshd or _sshd user in system." >&2
  50                 exit 1
  51         fi
  52 else
  53         "$getent" passwd sshd >/dev/null || sshd_user=_sshd
  54 fi
  55
  56 # Verify we have all we need
  57 if ! "$getent" passwd "$cfg_mirror_user" >/dev/null; then
  58         echo "*** Error: You do not have \"$cfg_mirror_user\" user in system yet." >&2
  59         exit 1
  60 fi
  61 if ! "$getent" passwd "$cfg_cgi_user" >/dev/null; then
  62         echo "*** Error: You do not have \"$cfg_cgi_user\" user in system yet." >&2
  63         exit 1
  64 fi
  65 if [ -n "$dbonly" ] && [ -z "$cfg_owning_group" ]; then
  66         cfg_owning_group="$("$getent" passwd "$cfg_mirror_user" | cut -d : -f 4)"
  67 elif ! "$getent" group "$cfg_owning_group" >/dev/null; then
  68         echo "*** Error: You do not have \"$cfg_owning_group\" group in system yet." >&2
  69         exit 1
  70 fi
  71
  72 # One last paranoid check before we go writing all over everything
  73 if [ -z "$cfg_chroot" ] || [ "$cfg_chroot" = "/" ]; then
  74         echo "*** Error: chroot location is not set or is invalid." >&2
  75         echo "*** Error: perhaps you have an incorrect Config.pm?" >&2
  76         exit 1
  77 fi
  78
  79 umask 022
  80 mkdir -p "$cfg_chroot"
  81 cd "$cfg_chroot"
  82 chmod 755 "$cfg_chroot" ||
  83         echo "WARNING: Cannot chmod $cfg_chroot"
  84
  85 mkdir -p var/empty
  86 chmod 0555 var/empty ||
  87         echo "WARNING: Cannot chmod a=rx $cfg_chroot/var/empty"
  88
  89 # Set up basic user/group configuration; if there isn't any already
  90 mobpass=
  91 [ -n "$cfg_mob" ] || mobpass='x'
  92 mkdir -p etc
  93 if ! [ -s etc/passwd ]; then
  94         cat >etc/passwd <<EOT
  95 root:x:0:0:system administrator:/var/empty:/bin/false
  96 nobody:x:$("$getent" passwd nobody | cut -d : -f 3-4):unprivileged user:/var/empty:/bin/false
  97 EOT
  98         [ -z "$sshd_user" ] || cat >>etc/passwd <<EOT
  99 sshd:x:$("$getent" passwd $sshd_user | cut -d : -f 3-4):privilege separation:/var/empty:/bin/false
 100 _sshd:x:$("$getent" passwd $sshd_user | cut -d : -f 3-4):privilege separation:/var/empty:/bin/false
 101 EOT
 102         [ "$cfg_cgi_user" = "$cfg_mirror_user" ] || cat >>etc/passwd <<EOT
 103 $cfg_cgi_user:x:$("$getent" passwd "$cfg_cgi_user" | cut -d : -f 3-5):/:/bin/true
 104 EOT
 105         cat >>etc/passwd <<EOT
 106 $cfg_mirror_user:x:$("$getent" passwd "$cfg_mirror_user" | cut -d : -f 3-5):/:/bin/true
 107 everyone:x:65537:$("$getent" group "$cfg_owning_group" | cut -d : -f 3):every user:/:/bin/false
 108 mob:$mobpass:65538:$("$getent" group "$cfg_owning_group" | cut -d : -f 3):the mob:/:/bin/git-shell-verify
 109 git::65539:$("$getent" passwd nobody | cut -d : -f 4):read-only access:/:/bin/git-shell-verify
 110 EOT
 111 elif [ -z "$dbonly" ]; then
 112         # Make sure an sshd entry is present
 113         if ! grep -q '^sshd:' etc/passwd; then
 114                 echo "*** Error: chroot etc/passwd exists but lacks sshd entry." >&2
 115                 exit 1
 116         fi
 117 fi
 118
 119 if ! [ -s etc/group ]; then
 120         cat >etc/group <<EOT
 121 _repo:x:$("$getent" group "$cfg_owning_group" | cut -d : -f 3):$cfg_mirror_user
 122 EOT
 123 fi
 124
 125 # Set up basic default Git configuration
 126 # Initialize one if none exists or update critical variables for an existing one
 127 mkdir -p etc/girocco
 128 didchmod=
 129 if [ -e etc/girocco/.gitconfig ] && ! [ -f etc/girocco/.gitconfig ]; then
 130         echo "*** Error: chroot etc/girocco/.gitconfig exists but is not a file." >&2
 131         exit 1
 132 fi
 133 if [ -f etc/girocco/.gitconfig ]; then
 134         gcerr=0
 135         x="$(git config --file etc/girocco/.gitconfig --get "no--such--section.no  such  subsection.no--such--key")" || gcerr=$?
 136         if [ $gcerr -gt 1 ]; then
 137                 echo "*** Error: chroot etc/girocco/.gitconfig exists but is corrupt." >&2
 138                 echo "*** Error: either remove it or edit it to correct the problem." >&2
 139                 exit 1
 140         fi
 141 fi
 142 if ! [ -s etc/girocco/.gitconfig ]; then
 143         chmod u+w etc/girocco
 144         didchmod=1
 145         cat >etc/girocco/.gitconfig <<EOT
 146 # Any values set here will take effect whenever Girocco runs a git command
 147
 148 EOT
 149 fi
 150 # $1 => name, $2 => value, $3 => overwrite_flag
 151 update_config_item() {
 152         _existsnot=
 153         _oldval=
 154         _oldval="$(git config --file etc/girocco/.gitconfig --get "$1")" || _existsnot=1
 155         if [ -z "$_existsnot" ]; then
 156                 [ -n "$3" ] || return 0
 157                 [ "$_oldval" != "$2" ] || return 0
 158         fi
 159         [ -n "$didchmod" ] || { chmod u+w etc/girocco; didchmod=1; }
 160         git config --file etc/girocco/.gitconfig "$1" "$2"
 161         if [ -n "$_existsnot" ]; then
 162                 echo "chroot: etc/girocco/.gitconfig: config $1: (created) \"$2\""
 163         else
 164                 echo "chroot: etc/girocco/.gitconfig: config $1: \"$_oldval\" -> \"$2\""
 165         fi
 166 }
 167 if [ -n "$cfg_git_no_mmap" ]; then
 168         update_config_item core.packedGitWindowSize 1m 1
 169 else
 170         update_config_item core.packedGitWindowSize 32m 1
 171 fi
 172 if [ -n "$var_window_memory" ]; then
 173         update_config_item pack.windowMemory "$var_window_memory" 1
 174 fi
 175 if [ -n "$cfg_jgit_compatible_bitmaps" ]; then
 176         update_config_item pack.writeBitmapHashCache false 1
 177 else
 178         update_config_item pack.writeBitmapHashCache true 1
 179 fi
 180 update_config_item core.pager "cat" 1
 181 update_config_item core.compression 5
 182 update_config_item http.lowSpeedLimit 1
 183 update_config_item http.lowSpeedTime 600
 184 update_config_item receive.maxInputSize "${cfg_max_receive_size:-0}" 1
 185 [ -z "$didchmod" ] || chmod a-w etc/girocco
 186
 187 mkdir -p etc/sshkeys etc/sshcerts etc/sshactive
 188 for ruser in $reserved_users; do
 189         touch etc/sshkeys/$ruser
 190 done
 191 chgrp $cfg_owning_group etc etc/sshkeys etc/sshcerts etc/sshactive ||
 192         echo "WARNING: Cannot chgrp $cfg_owning_group the etc directories"
 193 chgrp $cfg_owning_group etc/passwd ||
 194         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/passwd"
 195 chgrp $cfg_owning_group etc/group ||
 196         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/group"
 197 chgrp $cfg_owning_group etc/girocco etc/girocco/.gitconfig ||
 198         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/girocco"
 199 chmod g+s etc etc/sshkeys etc/sshcerts etc/sshactive ||
 200         echo "WARNING: Cannot chmod g+s the etc directories"
 201 chmod g+w etc etc/sshkeys etc/sshcerts etc/sshactive ||
 202         echo "WARNING: Cannot chmod g+w the etc directories"
 203 chmod g+w etc/passwd etc/group ||
 204         echo "WARNING: Cannot chmod g+w the etc/passwd and/or etc/group files"
 205 chmod go-w etc/passwd etc/girocco etc/girocco/.gitconfig ||
 206         echo "WARNING: Cannot chmod go-w etc/girocco and/or etc/girocco/.gitconfig"
 207 chmod a-w etc/girocco ||
 208         echo "WARNING: Cannot chmod a-w etc/girocco"
 209 chmod -R g+w etc/sshkeys etc/sshcerts etc/sshactive 2>/dev/null ||
 210         echo "WARNING: Cannot chmod g+w the sshkeys, sshcerts and/or sshactive files"
 211
 212 # Note time of last install
 213 >etc/sshactive/_install
 214
 215 [ -z "$dbonly" ] || exit 0
 216
 217 # Make sure the system type is supported for chroot
 218 sysname="$(uname -s | tr A-Z a-z)" || :
 219 : ${sysname:=linux}
 220 nosshdir=
 221 # These equivalents may need to be expanded at some point
 222 case "$sysname" in
 223         *kfreebsd*)
 224                 sysname=linux;;
 225         *darwin*)
 226                 sysname=darwin;;
 227         *dragonfly*)
 228                 sysname=dragonfly;;
 229         *freebsd*)
 230                 sysname=freebsd;;
 231         *linux*)
 232                 sysname=linux;;
 233 esac
 234
 235 chrootsetup="$curdir/chrootsetup_$sysname.sh"
 236 if ! [ -f "$chrootsetup" ] || ! [ -r "$chrootsetup" ] || ! [ -s "$chrootsetup" ]; then
 237         echo "*** Error: $chrootsetup not found" >&2
 238         echo "*** Error: creating a chroot for a $(uname -s) system is not supported" >&2
 239         exit 1
 240 fi
 241
 242 # validate reporoot, chroot, jailreporoot and sshd_bin before doing anything more
 243
 244 # validates the passed in dir if a second argument is not empty dir must NOT
 245 # start with / otherwise it must.  A trailing '/' is removed and any duplicated
 246 # // are removed and a sole / or empty is disallowed.
 247 make_valid_dir() {
 248         _check="$(echo "$1" | tr -s /)"
 249         _check="${_check%/}"
 250         [ -n "$_check" ] && [ "$_check" != "/" ] || return 1
 251         if [ -z "$2" ]; then
 252                 # must start with '/'
 253                 case "$_check" in /*) :;; *) return 1; esac
 254         else
 255                 # must NOT start with '/'
 256                 case "$_check" in /*) return 1; esac
 257         fi
 258         echo "$_check"
 259 }
 260
 261 if ! reporoot="$(make_valid_dir "$cfg_reporoot")"; then
 262         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 263         echo "*** Error: MUST start with '/' and MUST NOT be '/'" >&2
 264         exit 1
 265 fi
 266 if ! chroot="$(make_valid_dir "$cfg_chroot")"; then
 267         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 268         echo "*** Error: MUST start with '/' and MUST NOT be '/'" >&2
 269         exit 1
 270 fi
 271 if ! jailreporoot="$(make_valid_dir "$cfg_jailreporoot" 1)"; then
 272         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 273         echo "*** Error: MUST NOT start with '/' and MUST NOT be ''" >&2
 274         exit 1
 275 fi
 276
 277 # chroot MUST NOT be reporoot
 278 if [ "$chroot" = "$reporoot" ]; then
 279         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 280         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 281         echo "*** Error: reporoot and chroot MUST NOT be the same" >&2
 282         exit 1
 283 fi
 284
 285 # chroot MUST NOT be a subdirectory of reporoot
 286 case "$chroot" in "$reporoot"/*)
 287         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 288         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 289         echo "*** Error: chroot MUST NOT be a subdirectory of reporoot" >&2
 290         exit 1
 291 esac
 292
 293 # chroot/jailreporoot MUST NOT be a subdirectory of reporoot
 294 case "$chroot/$jailreporoot" in "$reporoot"/*)
 295         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 296         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 297         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 298         echo "*** Error: chroot/jailreporoot MUST NOT be a subdirectory of reporoot" >&2
 299         exit 1
 300 esac
 301
 302 # reporoot MUST NOT be a subdirectory of chroot/jailreporoot
 303 case "$reporoot" in "$chroot/$jailreporoot"/*)
 304         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 305         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 306         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 307         echo "*** Error: reporoot MUST NOT be a subdirectory of chroot/jailreporoot" >&2
 308         exit 1
 309 esac
 310
 311 # sshd_bin MUST be undef (or empty) or a full absolute path
 312 sshd_bin_bad=
 313 case "$cfg_sshd_bin" in *"/../"*) sshd_bin_bad=1;; ""|/?*) :;; *) sshd_bin_bad=1;; esac
 314 [ -z "$sshd_bin_bad" ] || {
 315         echo "*** Error: invalid Config::sshd_bin $cfg_sshd_bin" >&2
 316         echo "*** Error: if set, sshd_bin must be an absolute path" >&2
 317         exit 1
 318 }
 319 sshd_bin="$cfg_sshd_bin"
 320 [ -n "$sshd_bin" ] || sshd_bin="$(find_std_utility "sshd")" || {
 321         echo "*** Error: Config::sshd_bin is not set and no sshd could be found" >&2
 322         echo "*** Error: please set Config::sshd_bin to an absolute path to sshd" >&2
 323         exit 1
 324 }
 325 [ -x "$sshd_bin" ] && [ -r "$sshd_bin" ] && [ -f "$sshd_bin" ] || {
 326         echo "*** Error: the selected sshd ('$sshd_bin') was not found, not readable or not executable" >&2
 327         exit 1
 328 }
 329
 330 # Set the user and group on the top of the chroot before creating anything else
 331 chown 0:0 "$chroot"
 332
 333 # When we create a fork, the alternates always have an absolute path.
 334 # If reporoot is not --bind mounted at the same location in chroot we must
 335 # create a suitable symlink so the absolute path alternates continue to work
 336 # in the ssh chroot or else forks will be broken in there.
 337 if [ "$reporoot" != "/$jailreporoot" ]; then
 338         mkdirp="$(dirname "${reporoot#/}")"
 339         [ "$mkdirp" = "." ] && mkdirp=
 340         lnback=
 341         [ -z "$mkdirp" ] || lnback="$(echo "$mkdirp/" | sed -e 's,[^/]*/,../,g')"
 342         [ -z "$mkdirp" ] || mkdir -p "$chroot/$mkdirp"
 343         (umask 0; ln -s -f -n "$lnback$jailreporoot" "$chroot$reporoot")
 344         [ $? -eq 0 ] || exit 1
 345 fi
 346
 347 # First, setup basic platform-independent directory structure
 348 mkdir -p bin dev etc lib sbin var/empty var/run "$jailreporoot"
 349 chmod 0555 var/empty
 350 rm -rf usr local
 351 ln -s . usr
 352 ln -s . local
 353
 354 # Now source the platform-specific script that is responsible for dev device
 355 # setup, proc setup (if needed), lib64 setup (if needed) and basic library
 356 # installation to make a chroot operational.  Additionally it will define a
 357 # pull_in_bin function that can be used to add executables and their library
 358 # dependencies to the chroot and finally will install a suitable nc.openbsd
 359 # compatible version of netcat that supports connections to unix sockets.
 360 . "$chrootsetup"
 361
 362 # Now, bring in sshd, sh etc.
 363 # The $chrootsetup script should have already provided a suitable nc.openbsd
 364 install -p "$cfg_basedir/bin/git-shell-verify" bin/git-shell-verify.new
 365 install -p "$cfg_basedir/bin/git-askpass-password" bin/git-askpass-password.new
 366 perl -i -p \
 367         -e 's|^#!.*|#!/bin/sh| if $. == 1;' \
 368         -e 'close ARGV if eof;' \
 369         bin/git-shell-verify.new bin/git-askpass-password.new
 370 mv -f bin/git-askpass-password.new bin/git-askpass-password
 371 mv -f bin/git-shell-verify.new bin/git-shell-verify
 372 pull_in_bin "$cfg_basedir/bin/can_user_push" bin
 373 pull_in_bin "$cfg_basedir/bin/list_packs" bin
 374 pull_in_bin "$var_sh_bin" bin/sh
 375 # be paranoid since these are going into the chroot and make sure
 376 # that we get the "standard" versions of them (they are all standard "POSIX"
 377 # utilities) not some wayward version picked up by a haphazard PATH
 378 pull_in_bin "$(find_std_utility cat     )" bin
 379 pull_in_bin "$(find_std_utility chmod   )" bin
 380 pull_in_bin "$(find_std_utility date    )" bin
 381 pull_in_bin "$(find_std_utility find    )" bin
 382 pull_in_bin "$(find_std_utility mkdir   )" bin
 383 pull_in_bin "$(find_std_utility mv      )" bin
 384 pull_in_bin "$(find_std_utility rm      )" bin
 385 pull_in_bin "$(find_std_utility sleep   )" bin
 386 pull_in_bin "$(find_std_utility touch   )" bin
 387 pull_in_bin "$(find_std_utility tr      )" bin
 388 pull_in_bin "$(find_std_utility wc      )" bin
 389 # this one's already been validated and might be in a non-standard location
 390 pull_in_bin "$sshd_bin" sbin
 391
 392 # ...and the bits of git we need,
 393 # being sure to use the configured git and its --exec-path to find the pieces
 394 for i in git git-index-pack git-receive-pack git-shell git-update-server-info \
 395         git-upload-archive git-upload-pack git-unpack-objects git-config \
 396         git-for-each-ref git-rev-list git-rev-parse git-symbolic-ref; do
 397         pull_in_bin "$var_git_exec_path/$i" bin git
 398 done
 399
 400 # ...and any extras identified by install.sh
 401 # these are also all standard "POSIX" utilities
 402 # ones that a decent sh implementation would have built-in already...
 403 if [ -n "$GIROCCO_CHROOT_EXTRA_INSTALLS" ]; then
 404         for i in $GIROCCO_CHROOT_EXTRA_INSTALLS; do
 405                 pull_in_bin "$(find_std_utility "$(basename "$i")")" bin
 406         done
 407 fi
 408
 409 # Note time of last jailsetup
 410 >etc/sshactive/_jailsetup
 411
 412 # Update permissions on the database files
 413 chown $cfg_cgi_user:$cfg_owning_group etc/passwd etc/group
 414 chown -R $cfg_cgi_user:$cfg_owning_group etc/sshkeys etc/sshcerts etc/sshactive
 415 chown $cfg_mirror_user:$cfg_owning_group etc etc/girocco etc/girocco/.gitconfig
 416
 417 # Set up basic sshd configuration:
 418 if [ -n "$nosshdir" ]; then
 419         rm -rf etc/ssh
 420         ln -s . etc/ssh
 421         ! [ -f /etc/moduli ] || { cp -p /etc/moduli etc/; chown 0:0 etc/moduli; }
 422 else
 423         ! [ -e etc/ssh ] || [ -d etc/ssh ] || rm -rf etc/ssh
 424         mkdir -p etc/ssh
 425         ! [ -f /etc/ssh/moduli ] || { cp -p /etc/ssh/moduli etc/ssh/; chown 0:0 etc/ssh/moduli; }
 426 fi
 427 mkdir -p var/run/sshd
 428 if ! [ -s etc/ssh/sshd_config ]; then
 429         cat >etc/ssh/sshd_config <<EOT
 430 Protocol                2
 431 Port                    $cfg_sshd_jail_port
 432 UsePAM                  no
 433 X11Forwarding           no
 434 AllowAgentForwarding    no
 435 AllowTcpForwarding      no
 436 PermitTunnel            no
 437 IgnoreUserKnownHosts    yes
 438 PrintLastLog            no
 439 PrintMotd               no
 440 UseDNS                  no
 441 PermitRootLogin         no
 442 UsePrivilegeSeparation  yes
 443
 444 HostKey                 /etc/ssh/ssh_host_rsa_key
 445 EOT
 446 if [ -z "$cfg_disable_dsa" ]; then
 447         cat >>etc/ssh/sshd_config <<EOT
 448 HostKey                 /etc/ssh/ssh_host_dsa_key
 449 EOT
 450 fi
 451         cat >>etc/ssh/sshd_config <<EOT
 452 AuthorizedKeysFile      /etc/sshkeys/%u
 453 StrictModes             no
 454
 455 # mob and git users:
 456 PermitEmptyPasswords    yes
 457 ChallengeResponseAuthentication no
 458 PasswordAuthentication  yes
 459 EOT
 460 fi
 461 if ! [ -s etc/ssh/ssh_host_rsa_key ]; then
 462         bits=2048
 463         if [ "$cfg_rsakeylength" -gt "$bits" ] 2>/dev/null; then
 464                 bits="$cfg_rsakeylength"
 465         fi
 466         yes | ssh-keygen -b "$bits" -t rsa -N "" -C Girocco -f etc/ssh/ssh_host_rsa_key
 467 fi
 468 if [ -z "$cfg_disable_dsa" ] && ! [ -s etc/ssh/ssh_host_dsa_key ]; then
 469         # ssh-keygen can only create 1024 bit DSA keys
 470         yes | ssh-keygen -b 1024 -t dsa -N "" -C Girocco -f etc/ssh/ssh_host_dsa_key
 471 fi
 472
 473 # Set the final permissions on the binaries and perform any final twiddling
 474 chroot_update_permissions
 475
 476 # Change the owner of the sshd-related files
 477 chown 0:0 etc/ssh/ssh_* etc/ssh/sshd_*
 478
 479 echo "--- Add to your boot scripts: mount --bind $reporoot $chroot/$jailreporoot"
 480 echo "--- Add to your boot scripts: mount --bind /proc $chroot/proc"
 481 echo "--- Add to your syslog configuration: listening on socket $chroot/dev/log"
 482 echo "--- To restart a running jail's sshd: sudo kill -HUP \$(cat $chroot/var/run/sshd.pid)"