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 "$cfg_jgit_compatible_bitmaps" ]; then
 176         update_config_item pack.writeBitmapHashCache false 1
 177 else
 178         update_config_item pack.writeBitmapHashCache true 1
 179 fi
 180 update_config_item core.pager "cat" 1
 181 update_config_item core.compression 5
 182 update_config_item transfer.unpackLimit 1 1
 183 update_config_item http.lowSpeedLimit 1
 184 update_config_item http.lowSpeedTime 600
 185 update_config_item receive.maxInputSize "${cfg_max_receive_size:-0}" 1
 186 [ -z "$didchmod" ] || chmod a-w etc/girocco
 187
 188 mkdir -p etc/sshkeys etc/sshcerts etc/sshactive
 189 for ruser in $reserved_users; do
 190         touch etc/sshkeys/$ruser
 191 done
 192 chgrp $cfg_owning_group etc etc/sshkeys etc/sshcerts etc/sshactive ||
 193         echo "WARNING: Cannot chgrp $cfg_owning_group the etc directories"
 194 chgrp $cfg_owning_group etc/passwd ||
 195         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/passwd"
 196 chgrp $cfg_owning_group etc/group ||
 197         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/group"
 198 chgrp $cfg_owning_group etc/girocco etc/girocco/.gitconfig ||
 199         echo "WARNING: Cannot chgrp $cfg_owning_group $cfg_chroot/etc/girocco"
 200 chmod g+s etc etc/sshkeys etc/sshcerts etc/sshactive ||
 201         echo "WARNING: Cannot chmod g+s the etc directories"
 202 chmod g+w etc etc/sshkeys etc/sshcerts etc/sshactive ||
 203         echo "WARNING: Cannot chmod g+w the etc directories"
 204 chmod g+w etc/passwd etc/group ||
 205         echo "WARNING: Cannot chmod g+w the etc/passwd and/or etc/group files"
 206 chmod go-w etc/passwd etc/girocco etc/girocco/.gitconfig ||
 207         echo "WARNING: Cannot chmod go-w etc/girocco and/or etc/girocco/.gitconfig"
 208 chmod a-w etc/girocco ||
 209         echo "WARNING: Cannot chmod a-w etc/girocco"
 210 chmod -R g+w etc/sshkeys etc/sshcerts etc/sshactive 2>/dev/null ||
 211         echo "WARNING: Cannot chmod g+w the sshkeys, sshcerts and/or sshactive files"
 212
 213 # Note time of last install
 214 >etc/sshactive/_install
 215
 216 [ -z "$dbonly" ] || exit 0
 217
 218 # Make sure the system type is supported for chroot
 219 sysname="$(uname -s | tr A-Z a-z)" || :
 220 : ${sysname:=linux}
 221 nosshdir=
 222 # These equivalents may need to be expanded at some point
 223 case "$sysname" in
 224         *kfreebsd*)
 225                 sysname=linux;;
 226         *darwin*)
 227                 sysname=darwin;;
 228         *dragonfly*)
 229                 sysname=dragonfly;;
 230         *freebsd*)
 231                 sysname=freebsd;;
 232         *linux*)
 233                 sysname=linux;;
 234 esac
 235
 236 chrootsetup="$curdir/chrootsetup_$sysname.sh"
 237 if ! [ -f "$chrootsetup" ] || ! [ -r "$chrootsetup" ] || ! [ -s "$chrootsetup" ]; then
 238         echo "*** Error: $chrootsetup not found" >&2
 239         echo "*** Error: creating a chroot for a $(uname -s) system is not supported" >&2
 240         exit 1
 241 fi
 242
 243 # validate reporoot, chroot, jailreporoot and sshd_bin before doing anything more
 244
 245 # validates the passed in dir if a second argument is not empty dir must NOT
 246 # start with / otherwise it must.  A trailing '/' is removed and any duplicated
 247 # // are removed and a sole / or empty is disallowed.
 248 make_valid_dir() {
 249         _check="$(echo "$1" | tr -s /)"
 250         _check="${_check%/}"
 251         [ -n "$_check" ] && [ "$_check" != "/" ] || return 1
 252         if [ -z "$2" ]; then
 253                 # must start with '/'
 254                 case "$_check" in /*) :;; *) return 1; esac
 255         else
 256                 # must NOT start with '/'
 257                 case "$_check" in /*) return 1; esac
 258         fi
 259         echo "$_check"
 260 }
 261
 262 if ! reporoot="$(make_valid_dir "$cfg_reporoot")"; then
 263         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 264         echo "*** Error: MUST start with '/' and MUST NOT be '/'" >&2
 265         exit 1
 266 fi
 267 if ! chroot="$(make_valid_dir "$cfg_chroot")"; then
 268         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 269         echo "*** Error: MUST start with '/' and MUST NOT be '/'" >&2
 270         exit 1
 271 fi
 272 if ! jailreporoot="$(make_valid_dir "$cfg_jailreporoot" 1)"; then
 273         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 274         echo "*** Error: MUST NOT start with '/' and MUST NOT be ''" >&2
 275         exit 1
 276 fi
 277
 278 # chroot MUST NOT be reporoot
 279 if [ "$chroot" = "$reporoot" ]; then
 280         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 281         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 282         echo "*** Error: reporoot and chroot MUST NOT be the same" >&2
 283         exit 1
 284 fi
 285
 286 # chroot MUST NOT be a subdirectory of reporoot
 287 case "$chroot" in "$reporoot"/*)
 288         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 289         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 290         echo "*** Error: chroot MUST NOT be a subdirectory of reporoot" >&2
 291         exit 1
 292 esac
 293
 294 # chroot/jailreporoot MUST NOT be a subdirectory of reporoot
 295 case "$chroot/$jailreporoot" in "$reporoot"/*)
 296         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 297         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 298         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 299         echo "*** Error: chroot/jailreporoot MUST NOT be a subdirectory of reporoot" >&2
 300         exit 1
 301 esac
 302
 303 # reporoot MUST NOT be a subdirectory of chroot/jailreporoot
 304 case "$reporoot" in "$chroot/$jailreporoot"/*)
 305         echo "*** Error: invalid Config::reporoot: $cfg_reporoot" >&2
 306         echo "*** Error: invalid Config::chroot: $cfg_chroot" >&2
 307         echo "*** Error: invalid Config::jailreporoot: $cfg_jailreporoot" >&2
 308         echo "*** Error: reporoot MUST NOT be a subdirectory of chroot/jailreporoot" >&2
 309         exit 1
 310 esac
 311
 312 # sshd_bin MUST be undef (or empty) or a full absolute path
 313 sshd_bin_bad=
 314 case "$cfg_sshd_bin" in *"/../"*) sshd_bin_bad=1;; ""|/?*) :;; *) sshd_bin_bad=1;; esac
 315 [ -z "$sshd_bin_bad" ] || {
 316         echo "*** Error: invalid Config::sshd_bin $cfg_sshd_bin" >&2
 317         echo "*** Error: if set, sshd_bin must be an absolute path" >&2
 318         exit 1
 319 }
 320 sshd_bin="$cfg_sshd_bin"
 321 [ -n "$sshd_bin" ] || sshd_bin="$(find_std_utility "sshd")" || {
 322         echo "*** Error: Config::sshd_bin is not set and no sshd could be found" >&2
 323         echo "*** Error: please set Config::sshd_bin to an absolute path to sshd" >&2
 324         exit 1
 325 }
 326 [ -x "$sshd_bin" ] && [ -r "$sshd_bin" ] && [ -f "$sshd_bin" ] || {
 327         echo "*** Error: the selected sshd ('$sshd_bin') was not found, not readable or not executable" >&2
 328         exit 1
 329 }
 330
 331 # Set the user and group on the top of the chroot before creating anything else
 332 chown 0:0 "$chroot"
 333
 334 # When we create a fork, the alternates always have an absolute path.
 335 # If reporoot is not --bind mounted at the same location in chroot we must
 336 # create a suitable symlink so the absolute path alternates continue to work
 337 # in the ssh chroot or else forks will be broken in there.
 338 if [ "$reporoot" != "/$jailreporoot" ]; then
 339         mkdirp="$(dirname "${reporoot#/}")"
 340         [ "$mkdirp" = "." ] && mkdirp=
 341         lnback=
 342         [ -z "$mkdirp" ] || lnback="$(echo "$mkdirp/" | sed -e 's,[^/]*/,../,g')"
 343         [ -z "$mkdirp" ] || mkdir -p "$chroot/$mkdirp"
 344         (umask 0; ln -s -f -n "$lnback$jailreporoot" "$chroot$reporoot")
 345         [ $? -eq 0 ] || exit 1
 346 fi
 347
 348 # First, setup basic platform-independent directory structure
 349 mkdir -p bin dev etc lib sbin var/empty var/run "$jailreporoot"
 350 chmod 0555 var/empty
 351 rm -rf usr local
 352 ln -s . usr
 353 ln -s . local
 354
 355 # Now source the platform-specific script that is responsible for dev device
 356 # setup, proc setup (if needed), lib64 setup (if needed) and basic library
 357 # installation to make a chroot operational.  Additionally it will define a
 358 # pull_in_bin function that can be used to add executables and their library
 359 # dependencies to the chroot and finally will install a suitable nc.openbsd
 360 # compatible version of netcat that supports connections to unix sockets.
 361 . "$chrootsetup"
 362
 363 # Now, bring in sshd, sh etc.
 364 # The $chrootsetup script should have already provided a suitable nc.openbsd
 365 install -p "$cfg_basedir/bin/git-shell-verify" bin/git-shell-verify.new
 366 install -p "$cfg_basedir/bin/git-askpass-password" bin/git-askpass-password.new
 367 perl -i -p \
 368         -e 's|^#!.*|#!/bin/sh| if $. == 1;' \
 369         -e 'close ARGV if eof;' \
 370         bin/git-shell-verify.new bin/git-askpass-password.new
 371 mv -f bin/git-askpass-password.new bin/git-askpass-password
 372 mv -f bin/git-shell-verify.new bin/git-shell-verify
 373 pull_in_bin "$cfg_basedir/bin/can_user_push" bin
 374 pull_in_bin "$cfg_basedir/bin/list_packs" bin
 375 pull_in_bin "$var_sh_bin" bin/sh
 376 # be paranoid since these are going into the chroot and make sure
 377 # that we get the "standard" versions of them (they are all standard "POSIX"
 378 # utilities) not some wayward version picked up by a haphazard PATH
 379 pull_in_bin "$(find_std_utility cat     )" bin
 380 pull_in_bin "$(find_std_utility chmod   )" bin
 381 pull_in_bin "$(find_std_utility date    )" bin
 382 pull_in_bin "$(find_std_utility find    )" bin
 383 pull_in_bin "$(find_std_utility mkdir   )" bin
 384 pull_in_bin "$(find_std_utility mv      )" bin
 385 pull_in_bin "$(find_std_utility rm      )" bin
 386 pull_in_bin "$(find_std_utility sleep   )" bin
 387 pull_in_bin "$(find_std_utility touch   )" bin
 388 pull_in_bin "$(find_std_utility tr      )" bin
 389 pull_in_bin "$(find_std_utility wc      )" bin
 390 # this one's already been validated and might be in a non-standard location
 391 pull_in_bin "$sshd_bin" sbin
 392
 393 # ...and the bits of git we need,
 394 # being sure to use the configured git and its --exec-path to find the pieces
 395 for i in git git-index-pack git-receive-pack git-shell git-update-server-info \
 396         git-upload-archive git-upload-pack git-unpack-objects git-config \
 397         git-for-each-ref git-rev-list git-rev-parse git-symbolic-ref; do
 398         pull_in_bin "$var_git_exec_path/$i" bin git
 399 done
 400
 401 # ...and any extras identified by install.sh
 402 # these are also all standard "POSIX" utilities
 403 # ones that a decent sh implementation would have built-in already...
 404 if [ -n "$GIROCCO_CHROOT_EXTRA_INSTALLS" ]; then
 405         for i in $GIROCCO_CHROOT_EXTRA_INSTALLS; do
 406                 pull_in_bin "$(find_std_utility "$(basename "$i")")" bin
 407         done
 408 fi
 409
 410 # Note time of last jailsetup
 411 >etc/sshactive/_jailsetup
 412
 413 # Update permissions on the database files
 414 chown $cfg_cgi_user:$cfg_owning_group etc/passwd etc/group
 415 chown -R $cfg_cgi_user:$cfg_owning_group etc/sshkeys etc/sshcerts etc/sshactive
 416 chown $cfg_mirror_user:$cfg_owning_group etc etc/girocco etc/girocco/.gitconfig
 417
 418 # Set up basic sshd configuration:
 419 if [ -n "$nosshdir" ]; then
 420         rm -rf etc/ssh
 421         ln -s . etc/ssh
 422         ! [ -f /etc/moduli ] || { cp -p /etc/moduli etc/; chown 0:0 etc/moduli; }
 423 else
 424         ! [ -e etc/ssh ] || [ -d etc/ssh ] || rm -rf etc/ssh
 425         mkdir -p etc/ssh
 426         ! [ -f /etc/ssh/moduli ] || { cp -p /etc/ssh/moduli etc/ssh/; chown 0:0 etc/ssh/moduli; }
 427 fi
 428 mkdir -p var/run/sshd
 429 if ! [ -s etc/ssh/sshd_config ]; then
 430         cat >etc/ssh/sshd_config <<EOT
 431 Protocol                2
 432 Port                    $cfg_sshd_jail_port
 433 UsePAM                  no
 434 X11Forwarding           no
 435 AllowAgentForwarding    no
 436 AllowTcpForwarding      no
 437 PermitTunnel            no
 438 IgnoreUserKnownHosts    yes
 439 PrintLastLog            no
 440 PrintMotd               no
 441 UseDNS                  no
 442 PermitRootLogin         no
 443 UsePrivilegeSeparation  yes
 444
 445 HostKey                 /etc/ssh/ssh_host_rsa_key
 446 EOT
 447 if [ -z "$cfg_disable_dsa" ]; then
 448         cat >>etc/ssh/sshd_config <<EOT
 449 HostKey                 /etc/ssh/ssh_host_dsa_key
 450 EOT
 451 fi
 452         cat >>etc/ssh/sshd_config <<EOT
 453 AuthorizedKeysFile      /etc/sshkeys/%u
 454 StrictModes             no
 455
 456 # mob and git users:
 457 PermitEmptyPasswords    yes
 458 ChallengeResponseAuthentication no
 459 PasswordAuthentication  yes
 460 EOT
 461 fi
 462 if ! [ -s etc/ssh/ssh_host_rsa_key ]; then
 463         bits=2048
 464         if [ "$cfg_rsakeylength" -gt "$bits" ] 2>/dev/null; then
 465                 bits="$cfg_rsakeylength"
 466         fi
 467         yes | ssh-keygen -b "$bits" -t rsa -N "" -C Girocco -f etc/ssh/ssh_host_rsa_key
 468 fi
 469 if [ -z "$cfg_disable_dsa" ] && ! [ -s etc/ssh/ssh_host_dsa_key ]; then
 470         # ssh-keygen can only create 1024 bit DSA keys
 471         yes | ssh-keygen -b 1024 -t dsa -N "" -C Girocco -f etc/ssh/ssh_host_dsa_key
 472 fi
 473
 474 # Set the final permissions on the binaries and perform any final twiddling
 475 chroot_update_permissions
 476
 477 # Change the owner of the sshd-related files
 478 chown 0:0 etc/ssh/ssh_* etc/ssh/sshd_*
 479
 480 echo "--- Add to your boot scripts: mount --bind $reporoot $chroot/$jailreporoot"
 481 echo "--- Add to your boot scripts: mount --bind /proc $chroot/proc"
 482 echo "--- Add to your syslog configuration: listening on socket $chroot/dev/log"
 483 echo "--- To restart a running jail's sshd: sudo kill -HUP \$(cat $chroot/var/run/sshd.pid)"