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 who's 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" -a -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" -o "$cfg_chroot" = "/" ]; then
  74         echo "*** Error: chroot location is not set or is invalid." >&2
  75         echo "*** Error: perhaps you have an incorrect Config.pm?" >&2
  76         exit 1
  77 fi
  78
  79 umask 022
  80 mkdir -p "$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 "$cfg_jgit_compatible_bitmaps" ]; then
 176         update_config_item pack.writeBitmapHashCache false 1
 177 else
 178         update_config_item pack.writeBitmapHashCache true 1
 179 fi
 180 update_config_item http.lowSpeedLimit 1
 181 update_config_item http.lowSpeedTime 600
 182 update_config_item receive.maxInputSize "${cfg_max_receive_size:-0}" 1
 183 [ -z "$didchmod" ] || chmod a-w etc/girocco
 184
 185 mkdir -p etc/sshkeys etc/sshcerts etc/sshactive
 186 for ruser in $reserved_users; do
 187         touch etc/sshkeys/$ruser
 188 done
 189 chgrp $cfg_owning_group etc etc/sshkeys etc/sshcerts etc/sshactive ||
 190         echo "WARNING: Cannot chgrp $cfg_owning_group the etc directories"
 191 chgrp $cfg_owning_group etc/passwd ||
 192         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/passwd"
 193 chgrp $cfg_owning_group etc/group ||
 194         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/group"
 195 chgrp $cfg_owning_group etc/girocco etc/girocco/.gitconfig ||
 196         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/girocco"
 197 chmod g+s etc etc/sshkeys etc/sshcerts etc/sshactive ||
 198         echo "WARNING: Cannot chmod g+s the etc directories"
 199 chmod g+w etc etc/sshkeys etc/sshcerts etc/sshactive ||
 200         echo "WARNING: Cannot chmod g+w the etc directories"
 201 chmod g+w etc/passwd etc/group ||
 202         echo "WARNING: Cannot chmod g+w the etc/passwd and/or etc/group files"
 203 chmod go-w etc/passwd etc/girocco etc/girocco/.gitconfig ||
 204         echo "WARNING: Cannot chmod go-w etc/girocco and/or etc/girocco/.gitconfig"
 205 chmod a-w etc/girocco ||
 206         echo "WARNING: Cannot chmod a-w etc/girocco"
 207 chmod -R g+w etc/sshkeys etc/sshcerts etc/sshactive 2>/dev/null ||
 208         echo "WARNING: Cannot chmod g+w the sshkeys, sshcerts and/or sshactive files"
 209
 210 # Note time of last install
 211 > etc/sshactive/_install
 212
 213 [ -z "$dbonly" ] || exit 0
 214
 215 # Make sure the system type is supported for chroot
 216 sysname="$(uname -s | tr A-Z a-z || :)"
 217 : ${sysname:=linux}
 218 nosshdir=
 219 # These equivalents may need to be expanded at some point
 220 case "$sysname" in
 221         *kfreebsd*)
 222                 sysname=linux;;
 223         *darwin*)
 224                 sysname=darwin;;
 225         *dragonfly*)
 226                 sysname=dragonfly;;
 227         *freebsd*)
 228                 sysname=freebsd;;
 229         *linux*)
 230                 sysname=linux;;
 231 esac
 232
 233 chrootsetup="$curdir/chrootsetup_$sysname.sh"
 234 if ! [ -r "$chrootsetup" -a -s "$chrootsetup" ]; then
 235         echo "*** Error: $chrootsetup not found" >&2
 236         echo "*** Error: creating a chroot for a `uname -s` system is not supported" >&2
 237         exit 1
 238 fi
 239
 240 # validate reporoot, chroot, jailreporoot and sshd_bin before doing anything more
 241
 242 # validates the passed in dir if a second argument is not empty dir must NOT
 243 # start with / otherwise it must.  A trailing '/' is removed and any duplicated
 244 # // are removed and a sole / or empty is disallowed.
 245 make_valid_dir() {
 246         _check="$(echo "$1" | tr -s /)"
 247         _check="${_check%/}"
 248         [ -z "$_check" -o "$_check" = "/" ] && return 1
 249         if [ -z "$2" ]; then
 250                 # must start with '/'
 251                 case "$_check" in /*) :;; *) return 1; esac
 252         else
 253                 # must NOT start with '/'
 254                 case "$_check" in /*) return 1; esac
 255         fi
 256         echo "$_check"
 257 }
 258
 259 if ! reporoot="$(make_valid_dir "$cfg_reporoot")"; then
 260         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 261         echo "*** Error: MUST start with '/' and MUST NOT be '/'" >&2
 262         exit 1
 263 fi
 264 if ! chroot="$(make_valid_dir "$cfg_chroot")"; then
 265         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 266         echo "*** Error: MUST start with '/' and MUST NOT be '/'" >&2
 267         exit 1
 268 fi
 269 if ! jailreporoot="$(make_valid_dir "$cfg_jailreporoot" 1)"; then
 270         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 271         echo "*** Error: MUST NOT start with '/' and MUST NOT be ''" >&2
 272         exit 1
 273 fi
 274
 275 # chroot MUST NOT be reporoot
 276 if [ "$chroot" = "$reporoot" ]; then
 277         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 278         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 279         echo "*** Error: reporoot and chroot MUST NOT be the same" >&2
 280         exit 1
 281 fi
 282
 283 # chroot MUST NOT be a subdirectory of reporoot
 284 case "$chroot" in "$reporoot"/*)
 285         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 286         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 287         echo "*** Error: chroot MUST NOT be a subdirectory of reporoot" >&2
 288         exit 1
 289 esac
 290
 291 # chroot/jailreporoot MUST NOT be a subdirectory of reporoot
 292 case "$chroot/$jailreporoot" in "$reporoot"/*)
 293         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 294         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 295         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 296         echo "*** Error: chroot/jailreporoot MUST NOT be a subdirectory of reporoot" >&2
 297         exit 1
 298 esac
 299
 300 # reporoot MUST NOT be a subdirectory of chroot/jailreporoot
 301 case "$reporoot" in "$chroot/$jailreporoot"/*)
 302         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 303         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 304         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 305         echo "*** Error: reporoot MUST NOT be a subdirectory of chroot/jailreporoot" >&2
 306         exit 1
 307 esac
 308
 309 # sshd_bin MUST be undef (or empty) or a full absolute path
 310 sshd_bin_bad=
 311 case "$cfg_sshd_bin" in *"/../"*) sshd_bin_bad=1;; ""|/?*) :;; *) sshd_bin_bad=1;; esac
 312 [ -z "$sshd_bin_bad" ] || {
 313         echo "*** Error: invalid Config::sshd_bin $cfg_sshd_bin" >&2
 314         echo "*** Error: if set, sshd_bin must be an absolute path" >&2
 315         exit 1
 316 }
 317 sshd_bin="$cfg_sshd_bin"
 318 [ -n "$sshd_bin" ] || sshd_bin="$(find_std_utility "sshd")" || {
 319         echo "*** Error: Config::sshd_bin is not set and no sshd could be found" >&2
 320         echo "*** Error: please set Config::sshd_bin to an absolute path to sshd" >&2
 321         exit 1
 322 }
 323 [ -x "$sshd_bin" ] && [ -r "$sshd_bin" ] && [ -f "$sshd_bin" ] || {
 324         echo "*** Error: the selected sshd ('$sshd_bin') was not found, not readable or not executable" >&2
 325         exit 1
 326 }
 327
 328 # Set the user and group on the top of the chroot before creating anything else
 329 chown 0:0 "$chroot"
 330
 331 # When we create a fork, the alternates always have an absolute path.
 332 # If reporoot is not --bind mounted at the same location in chroot we must
 333 # create a suitable symlink so the absolute path alternates continue to work
 334 # in the ssh chroot or else forks will be broken in there.
 335 if [ "$reporoot" != "/$jailreporoot" ]; then
 336         mkdirp="$(dirname "${reporoot#/}")"
 337         [ "$mkdirp" = "." ] && mkdirp=
 338         lnback=
 339         [ -z "$mkdirp" ] || lnback="$(echo "$mkdirp/" | sed -e 's,[^/]*/,../,g')"
 340         [ -z "$mkdirp" ] || mkdir -p "$chroot/$mkdirp"
 341         (umask 0; ln -s -f -n "$lnback$jailreporoot" "$chroot$reporoot")
 342         [ $? -eq 0 ] || exit 1
 343 fi
 344
 345 # First, setup basic platform-independent directory structure
 346 mkdir -p bin dev etc lib sbin var/empty var/run "$jailreporoot"
 347 chmod 0555 var/empty
 348 rm -rf usr local
 349 ln -s . usr
 350 ln -s . local
 351
 352 # Now source the platform-specific script that is responsible for dev device
 353 # setup, proc setup (if needed), lib64 setup (if needed) and basic library
 354 # installation to make a chroot operational.  Additionally it will define a
 355 # pull_in_bin function that can be used to add executables and their library
 356 # dependencies to the chroot and finally will install a suitable nc.openbsd
 357 # compatible version of netcat that supports connections to unix sockets.
 358 . "$chrootsetup"
 359
 360 # Now, bring in sshd, sh etc.
 361 # The $chrootsetup script should have already provided a suitable nc.openbsd
 362 install -p "$cfg_basedir/bin/git-shell-verify" bin/git-shell-verify.new
 363 install -p "$cfg_basedir/bin/git-askpass-password" bin/git-askpass-password.new
 364 perl -i -p \
 365         -e 's|^#!.*|#!/bin/sh| if $. == 1;' \
 366         -e 'close ARGV if eof;' \
 367         bin/git-shell-verify.new bin/git-askpass-password.new
 368 mv -f bin/git-askpass-password.new bin/git-askpass-password
 369 mv -f bin/git-shell-verify.new bin/git-shell-verify
 370 pull_in_bin "$cfg_basedir/bin/can_user_push" bin
 371 pull_in_bin "$cfg_basedir/bin/list_packs" bin
 372 pull_in_bin "$var_sh_bin" bin/sh
 373 # be paranoid since these are going into the chroot and make sure
 374 # that we get the "standard" versions of them (they are all standard "POSIX"
 375 # utilities) not some wayward version picked up by a haphazard PATH
 376 pull_in_bin "$(find_std_utility chmod   )" bin
 377 pull_in_bin "$(find_std_utility date    )" bin
 378 pull_in_bin "$(find_std_utility find    )" bin
 379 pull_in_bin "$(find_std_utility mkdir   )" bin
 380 pull_in_bin "$(find_std_utility mv      )" bin
 381 pull_in_bin "$(find_std_utility rm      )" bin
 382 pull_in_bin "$(find_std_utility sleep   )" bin
 383 pull_in_bin "$(find_std_utility touch   )" bin
 384 pull_in_bin "$(find_std_utility tr      )" bin
 385 pull_in_bin "$(find_std_utility wc      )" bin
 386 pull_in_bin "$(find_std_utility xargs   )" bin
 387 # this one's already been validated and might be in a non-standard location
 388 pull_in_bin "$sshd_bin" sbin
 389
 390 # ...and the bits of git we need,
 391 # being sure to use the configured git and its --exec-path to find the pieces
 392 for i in git git-index-pack git-receive-pack git-shell git-update-server-info \
 393         git-upload-archive git-upload-pack git-unpack-objects git-config \
 394         git-for-each-ref git-rev-list git-rev-parse git-symbolic-ref; do
 395         pull_in_bin "$var_git_exec_path/$i" bin git
 396 done
 397
 398 # ...and any extras identified by install.sh
 399 # these are also all standard "POSIX" utilities
 400 # ones that a decent sh implementation would have built-in already...
 401 if [ -n "$GIROCCO_CHROOT_EXTRA_INSTALLS" ]; then
 402         for i in $GIROCCO_CHROOT_EXTRA_INSTALLS; do
 403                 pull_in_bin "$(find_std_utility "$(basename "$i")")" bin
 404         done
 405 fi
 406
 407 # Note time of last jailsetup
 408 > etc/sshactive/_jailsetup
 409
 410 # Update permissions on the database files
 411 chown $cfg_cgi_user:$cfg_owning_group etc/passwd etc/group
 412 chown -R $cfg_cgi_user:$cfg_owning_group etc/sshkeys etc/sshcerts etc/sshactive
 413 chown $cfg_mirror_user:$cfg_owning_group etc etc/girocco etc/girocco/.gitconfig
 414
 415 # Set up basic sshd configuration:
 416 if [ -n "$nosshdir" ]; then
 417         rm -rf etc/ssh
 418         ln -s . etc/ssh
 419         [ ! -f /etc/moduli ] || { cp -p /etc/moduli etc/; chown 0:0 etc/moduli; }
 420 else
 421         [ ! -e etc/ssh -o -d etc/ssh ] || rm -rf etc/ssh
 422         mkdir -p etc/ssh
 423         [ ! -f /etc/ssh/moduli ] || { cp -p /etc/ssh/moduli etc/ssh/; chown 0:0 etc/ssh/moduli; }
 424 fi
 425 mkdir -p var/run/sshd
 426 if [ ! -s etc/ssh/sshd_config ]; then
 427         cat >etc/ssh/sshd_config <<EOT
 428 Protocol                2
 429 Port                    $cfg_sshd_jail_port
 430 UsePAM                  no
 431 X11Forwarding           no
 432 AllowAgentForwarding    no
 433 AllowTcpForwarding      no
 434 PermitTunnel            no
 435 IgnoreUserKnownHosts    yes
 436 PrintLastLog            no
 437 PrintMotd               no
 438 UseDNS                  no
 439 PermitRootLogin         no
 440 UsePrivilegeSeparation  yes
 441
 442 HostKey                 /etc/ssh/ssh_host_rsa_key
 443 EOT
 444 if [ -z "$cfg_disable_dsa" ]; then
 445         cat >>etc/ssh/sshd_config <<EOT
 446 HostKey                 /etc/ssh/ssh_host_dsa_key
 447 EOT
 448 fi
 449         cat >>etc/ssh/sshd_config <<EOT
 450 AuthorizedKeysFile      /etc/sshkeys/%u
 451 StrictModes             no
 452
 453 # mob and git users:
 454 PermitEmptyPasswords    yes
 455 ChallengeResponseAuthentication no
 456 PasswordAuthentication  yes
 457 EOT
 458 fi
 459 if [ ! -s etc/ssh/ssh_host_rsa_key ]; then
 460         bits=2048
 461         if [ "$cfg_rsakeylength" -gt "$bits" ] 2>/dev/null; then
 462                 bits="$cfg_rsakeylength"
 463         fi
 464         yes | ssh-keygen -b "$bits" -t rsa -N "" -C Girocco -f etc/ssh/ssh_host_rsa_key
 465 fi
 466 if [ -z "$cfg_disable_dsa" -a ! -s etc/ssh/ssh_host_dsa_key ]; then
 467         # ssh-keygen can only create 1024 bit DSA keys
 468         yes | ssh-keygen -b 1024 -t dsa -N "" -C Girocco -f etc/ssh/ssh_host_dsa_key
 469 fi
 470
 471 # Set the final permissions on the binaries and perform any final twiddling
 472 chroot_update_permissions
 473
 474 # Change the owner of the sshd-related files
 475 chown 0:0 etc/ssh/ssh_* etc/ssh/sshd_*
 476
 477 echo "--- Add to your boot scripts: mount --bind $reporoot $chroot/$jailreporoot"
 478 echo "--- Add to your boot scripts: mount --bind /proc $chroot/proc"
 479 echo "--- Add to your syslog configuration: listening on socket $chroot/dev/log"
 480 echo "--- To restart a running jail's sshd: sudo kill -HUP \`cat $chroot/var/run/sshd.pid\`"