1180740Sdes#!/bin/bash 2180740Sdes# 3294332Sdes# ssh-host-config, Copyright 2000-2014 Red Hat Inc. 4180740Sdes# 5180740Sdes# This file is part of the Cygwin port of OpenSSH. 6197670Sdes# 7197670Sdes# Permission to use, copy, modify, and distribute this software for any 8197670Sdes# purpose with or without fee is hereby granted, provided that the above 9197670Sdes# copyright notice and this permission notice appear in all copies. 10197670Sdes# 11197670Sdes# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 12197670Sdes# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 13197670Sdes# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 14197670Sdes# IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 15197670Sdes# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 16197670Sdes# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR 17197670Sdes# THE USE OR OTHER DEALINGS IN THE SOFTWARE. 18180740Sdes 19180750Sdes# ====================================================================== 20180750Sdes# Initialization 21180750Sdes# ====================================================================== 22180750Sdes 23180750SdesCSIH_SCRIPT=/usr/share/csih/cygwin-service-installation-helper.sh 24180750Sdes 25221377Sdes# List of apps used. This is checkad for existance in csih_sanity_check 26221377Sdes# Don't use *any* transient commands before sourcing the csih helper script, 27221377Sdes# otherwise the sanity checks are short-circuited. 28221377Sdesdeclare -a csih_required_commands=( 29221377Sdes /usr/bin/basename coreutils 30221377Sdes /usr/bin/cat coreutils 31221377Sdes /usr/bin/chmod coreutils 32221377Sdes /usr/bin/dirname coreutils 33221377Sdes /usr/bin/id coreutils 34221377Sdes /usr/bin/mv coreutils 35221377Sdes /usr/bin/rm coreutils 36221377Sdes /usr/bin/cygpath cygwin 37294328Sdes /usr/bin/mkpasswd cygwin 38221377Sdes /usr/bin/mount cygwin 39221377Sdes /usr/bin/ps cygwin 40221377Sdes /usr/bin/umount cygwin 41221377Sdes /usr/bin/cmp diffutils 42221377Sdes /usr/bin/grep grep 43221377Sdes /usr/bin/awk gawk 44221377Sdes /usr/bin/ssh-keygen openssh 45221377Sdes /usr/sbin/sshd openssh 46221377Sdes /usr/bin/sed sed 47221377Sdes) 48221377Sdescsih_sanity_check_server=yes 49221377Sdessource ${CSIH_SCRIPT} 50221377Sdes 51221377SdesPROGNAME=$(/usr/bin/basename $0) 52221377Sdes_tdir=$(/usr/bin/dirname $0) 53221377SdesPROGDIR=$(cd $_tdir && pwd) 54221377Sdes 55180740Sdes# Subdirectory where the new package is being installed 56180740SdesPREFIX=/usr 57180740Sdes 58180740Sdes# Directory where the config files are stored 59180740SdesSYSCONFDIR=/etc 60180740SdesLOCALSTATEDIR=/var 61180740Sdes 62294328Sdessshd_config_configured=no 63180740Sdesport_number=22 64294332Sdesservice_name=sshd 65294328Sdesstrictmodes=yes 66180740Sdesprivsep_used=yes 67189006Sdescygwin_value="" 68197670Sdesuser_account= 69180750Sdespassword_value= 70197670Sdesopt_force=no 71180740Sdes 72180750Sdes# ====================================================================== 73180750Sdes# Routine: update_services_file 74180750Sdes# ====================================================================== 75180750Sdesupdate_services_file() { 76180750Sdes local _my_etcdir="/ssh-host-config.$$" 77180750Sdes local _win_etcdir 78180750Sdes local _services 79180750Sdes local _spaces 80180750Sdes local _serv_tmp 81180750Sdes local _wservices 82221377Sdes local ret=0 83180750Sdes 84221377Sdes _win_etcdir="${SYSTEMROOT}\\system32\\drivers\\etc" 85221377Sdes _services="${_my_etcdir}/services" 86221377Sdes _spaces=" #" 87180750Sdes _serv_tmp="${_my_etcdir}/srv.out.$$" 88189006Sdes 89221377Sdes /usr/bin/mount -o text,posix=0,noacl -f "${_win_etcdir}" "${_my_etcdir}" 90189006Sdes 91180750Sdes # Depends on the above mount 92180750Sdes _wservices=`cygpath -w "${_services}"` 93189006Sdes 94180750Sdes # Add ssh 22/tcp and ssh 22/udp to services 95294328Sdes if [ `/usr/bin/grep -q 'ssh[[:space:]][[:space:]]*22' "${_services}"; echo $?` -ne 0 ] 96180750Sdes then 97221377Sdes if /usr/bin/awk '{ if ( $2 ~ /^23\/tcp/ ) print "ssh 22/tcp'"${_spaces}"'SSH Remote Login Protocol\nssh 22/udp'"${_spaces}"'SSH Remote Login Protocol"; print $0; }' < "${_services}" > "${_serv_tmp}" 98180750Sdes then 99221377Sdes if /usr/bin/mv "${_serv_tmp}" "${_services}" 100180750Sdes then 101189006Sdes csih_inform "Added ssh to ${_wservices}" 102180750Sdes else 103189006Sdes csih_warning "Adding ssh to ${_wservices} failed!" 104221377Sdes let ++ret 105180750Sdes fi 106221377Sdes /usr/bin/rm -f "${_serv_tmp}" 107180750Sdes else 108180750Sdes csih_warning "Adding ssh to ${_wservices} failed!" 109221377Sdes let ++ret 110180750Sdes fi 111180750Sdes fi 112221377Sdes /usr/bin/umount "${_my_etcdir}" 113221377Sdes return $ret 114180750Sdes} # --- End of update_services_file --- # 115180740Sdes 116180750Sdes# ====================================================================== 117294328Sdes# Routine: sshd_strictmodes 118294328Sdes# MODIFIES: strictmodes 119294328Sdes# ====================================================================== 120294328Sdessshd_strictmodes() { 121294328Sdes if [ "${sshd_config_configured}" != "yes" ] 122294328Sdes then 123294328Sdes echo 124294328Sdes csih_inform "StrictModes is set to 'yes' by default." 125294328Sdes csih_inform "This is the recommended setting, but it requires that the POSIX" 126294328Sdes csih_inform "permissions of the user's home directory, the user's .ssh" 127294328Sdes csih_inform "directory, and the user's ssh key files are tight so that" 128294328Sdes csih_inform "only the user has write permissions." 129294328Sdes csih_inform "On the other hand, StrictModes don't work well with default" 130294328Sdes csih_inform "Windows permissions of a home directory mounted with the" 131294328Sdes csih_inform "'noacl' option, and they don't work at all if the home" 132294328Sdes csih_inform "directory is on a FAT or FAT32 partition." 133294328Sdes if ! csih_request "Should StrictModes be used?" 134294328Sdes then 135294328Sdes strictmodes=no 136294328Sdes fi 137294328Sdes fi 138294328Sdes return 0 139294328Sdes} 140294328Sdes 141294328Sdes# ====================================================================== 142180750Sdes# Routine: sshd_privsep 143294328Sdes# MODIFIES: privsep_used 144180750Sdes# ====================================================================== 145180750Sdessshd_privsep() { 146221377Sdes local ret=0 147180740Sdes 148294328Sdes if [ "${sshd_config_configured}" != "yes" ] 149180750Sdes then 150294328Sdes echo 151294328Sdes csih_inform "Privilege separation is set to 'sandbox' by default since" 152294328Sdes csih_inform "OpenSSH 6.1. This is unsupported by Cygwin and has to be set" 153294328Sdes csih_inform "to 'yes' or 'no'." 154294328Sdes csih_inform "However, using privilege separation requires a non-privileged account" 155294328Sdes csih_inform "called 'sshd'." 156221377Sdes csih_inform "For more info on privilege separation read /usr/share/doc/openssh/README.privsep." 157221377Sdes if csih_request "Should privilege separation be used?" 158180750Sdes then 159221377Sdes privsep_used=yes 160221377Sdes if ! csih_create_unprivileged_user sshd 161180750Sdes then 162221377Sdes csih_error_recoverable "Couldn't create user 'sshd'!" 163221377Sdes csih_error_recoverable "Privilege separation set to 'no' again!" 164221377Sdes csih_error_recoverable "Check your ${SYSCONFDIR}/sshd_config file!" 165221377Sdes let ++ret 166189006Sdes privsep_used=no 167180750Sdes fi 168180750Sdes else 169180750Sdes privsep_used=no 170180750Sdes fi 171180750Sdes fi 172294328Sdes return $ret 173294328Sdes} # --- End of sshd_privsep --- # 174189006Sdes 175294328Sdes# ====================================================================== 176294328Sdes# Routine: sshd_config_tweak 177294328Sdes# ====================================================================== 178294328Sdessshd_config_tweak() { 179294328Sdes local ret=0 180294328Sdes 181294328Sdes # Modify sshd_config 182294328Sdes csih_inform "Updating ${SYSCONFDIR}/sshd_config file" 183294328Sdes if [ "${port_number}" -ne 22 ] 184180750Sdes then 185294328Sdes /usr/bin/sed -i -e "s/^#\?[[:space:]]*Port[[:space:]].*/Port ${port_number}/" \ 186294328Sdes ${SYSCONFDIR}/sshd_config 187294328Sdes if [ $? -ne 0 ] 188221377Sdes then 189294328Sdes csih_warning "Setting listening port to ${port_number} failed!" 190294328Sdes csih_warning "Check your ${SYSCONFDIR}/sshd_config file!" 191294328Sdes let ++ret 192221377Sdes fi 193294328Sdes fi 194294328Sdes if [ "${strictmodes}" = "no" ] 195180750Sdes then 196294328Sdes /usr/bin/sed -i -e "s/^#\?[[:space:]]*StrictModes[[:space:]].*/StrictModes no/" \ 197294328Sdes ${SYSCONFDIR}/sshd_config 198294328Sdes if [ $? -ne 0 ] 199221377Sdes then 200294328Sdes csih_warning "Setting StrictModes to 'no' failed!" 201294328Sdes csih_warning "Check your ${SYSCONFDIR}/sshd_config file!" 202294328Sdes let ++ret 203221377Sdes fi 204180750Sdes fi 205294328Sdes if [ "${sshd_config_configured}" != "yes" ] 206294328Sdes then 207294328Sdes /usr/bin/sed -i -e " 208294328Sdes s/^#\?UsePrivilegeSeparation .*/UsePrivilegeSeparation ${privsep_used}/" \ 209294328Sdes ${SYSCONFDIR}/sshd_config 210294328Sdes if [ $? -ne 0 ] 211294328Sdes then 212294328Sdes csih_warning "Setting privilege separation failed!" 213294328Sdes csih_warning "Check your ${SYSCONFDIR}/sshd_config file!" 214294328Sdes let ++ret 215294328Sdes fi 216294328Sdes fi 217221377Sdes return $ret 218294328Sdes} # --- End of sshd_config_tweak --- # 219180750Sdes 220180750Sdes# ====================================================================== 221180750Sdes# Routine: update_inetd_conf 222180750Sdes# ====================================================================== 223180750Sdesupdate_inetd_conf() { 224180750Sdes local _inetcnf="${SYSCONFDIR}/inetd.conf" 225180750Sdes local _inetcnf_tmp="${SYSCONFDIR}/inetd.conf.$$" 226180750Sdes local _inetcnf_dir="${SYSCONFDIR}/inetd.d" 227180750Sdes local _sshd_inetd_conf="${_inetcnf_dir}/sshd-inetd" 228180750Sdes local _sshd_inetd_conf_tmp="${_inetcnf_dir}/sshd-inetd.$$" 229180750Sdes local _with_comment=1 230221377Sdes local ret=0 231180750Sdes 232180750Sdes if [ -d "${_inetcnf_dir}" ] 233180750Sdes then 234180750Sdes # we have inetutils-1.5 inetd.d support 235180750Sdes if [ -f "${_inetcnf}" ] 236180750Sdes then 237294328Sdes /usr/bin/grep -q '^[[:space:]]*ssh' "${_inetcnf}" && _with_comment=0 238180750Sdes 239180750Sdes # check for sshd OR ssh in top-level inetd.conf file, and remove 240180750Sdes # will be replaced by a file in inetd.d/ 241294328Sdes if [ $(/usr/bin/grep -q '^[# \t]*ssh' "${_inetcnf}"; echo $?) -eq 0 ] 242180750Sdes then 243221377Sdes /usr/bin/grep -v '^[# \t]*ssh' "${_inetcnf}" >> "${_inetcnf_tmp}" 244189006Sdes if [ -f "${_inetcnf_tmp}" ] 245189006Sdes then 246221377Sdes if /usr/bin/mv "${_inetcnf_tmp}" "${_inetcnf}" 247189006Sdes then 248180750Sdes csih_inform "Removed ssh[d] from ${_inetcnf}" 249189006Sdes else 250180750Sdes csih_warning "Removing ssh[d] from ${_inetcnf} failed!" 251221377Sdes let ++ret 252189006Sdes fi 253221377Sdes /usr/bin/rm -f "${_inetcnf_tmp}" 254189006Sdes else 255189006Sdes csih_warning "Removing ssh[d] from ${_inetcnf} failed!" 256221377Sdes let ++ret 257189006Sdes fi 258180750Sdes fi 259180750Sdes fi 260180750Sdes 261180750Sdes csih_install_config "${_sshd_inetd_conf}" "${SYSCONFDIR}/defaults" 262221377Sdes if /usr/bin/cmp "${SYSCONFDIR}/defaults${_sshd_inetd_conf}" "${_sshd_inetd_conf}" >/dev/null 2>&1 263180750Sdes then 264180750Sdes if [ "${_with_comment}" -eq 0 ] 265180750Sdes then 266294328Sdes /usr/bin/sed -e 's/@COMMENT@[[:space:]]*//' < "${_sshd_inetd_conf}" > "${_sshd_inetd_conf_tmp}" 267180750Sdes else 268294328Sdes /usr/bin/sed -e 's/@COMMENT@[[:space:]]*/# /' < "${_sshd_inetd_conf}" > "${_sshd_inetd_conf_tmp}" 269180750Sdes fi 270221377Sdes if /usr/bin/mv "${_sshd_inetd_conf_tmp}" "${_sshd_inetd_conf}" 271221377Sdes then 272221377Sdes csih_inform "Updated ${_sshd_inetd_conf}" 273221377Sdes else 274221377Sdes csih_warning "Updating ${_sshd_inetd_conf} failed!" 275221377Sdes let ++ret 276221377Sdes fi 277189006Sdes fi 278180750Sdes 279180750Sdes elif [ -f "${_inetcnf}" ] 280180750Sdes then 281294328Sdes /usr/bin/grep -q '^[[:space:]]*sshd' "${_inetcnf}" && _with_comment=0 282180750Sdes 283180750Sdes # check for sshd in top-level inetd.conf file, and remove 284180750Sdes # will be replaced by a file in inetd.d/ 285294328Sdes if [ `/usr/bin/grep -q '^#\?[[:space:]]*sshd' "${_inetcnf}"; echo $?` -eq 0 ] 286180750Sdes then 287294328Sdes /usr/bin/grep -v '^#\?[[:space:]]*sshd' "${_inetcnf}" >> "${_inetcnf_tmp}" 288180750Sdes if [ -f "${_inetcnf_tmp}" ] 289180750Sdes then 290221377Sdes if /usr/bin/mv "${_inetcnf_tmp}" "${_inetcnf}" 291189006Sdes then 292180750Sdes csih_inform "Removed sshd from ${_inetcnf}" 293189006Sdes else 294180750Sdes csih_warning "Removing sshd from ${_inetcnf} failed!" 295221377Sdes let ++ret 296189006Sdes fi 297221377Sdes /usr/bin/rm -f "${_inetcnf_tmp}" 298180750Sdes else 299189006Sdes csih_warning "Removing sshd from ${_inetcnf} failed!" 300221377Sdes let ++ret 301180750Sdes fi 302180750Sdes fi 303189006Sdes 304180750Sdes # Add ssh line to inetd.conf 305221377Sdes if [ `/usr/bin/grep -q '^[# \t]*ssh' "${_inetcnf}"; echo $?` -ne 0 ] 306180750Sdes then 307180750Sdes if [ "${_with_comment}" -eq 0 ] 308180750Sdes then 309189006Sdes echo 'ssh stream tcp nowait root /usr/sbin/sshd sshd -i' >> "${_inetcnf}" 310180750Sdes else 311189006Sdes echo '# ssh stream tcp nowait root /usr/sbin/sshd sshd -i' >> "${_inetcnf}" 312180750Sdes fi 313221377Sdes if [ $? -eq 0 ] 314221377Sdes then 315221377Sdes csih_inform "Added ssh to ${_inetcnf}" 316221377Sdes else 317221377Sdes csih_warning "Adding ssh to ${_inetcnf} failed!" 318221377Sdes let ++ret 319221377Sdes fi 320180750Sdes fi 321180750Sdes fi 322221377Sdes return $ret 323180750Sdes} # --- End of update_inetd_conf --- # 324180750Sdes 325180750Sdes# ====================================================================== 326221377Sdes# Routine: check_service_files_ownership 327221377Sdes# Checks that the files in /etc and /var belong to the right owner 328221377Sdes# ====================================================================== 329221377Sdescheck_service_files_ownership() { 330221377Sdes local run_service_as=$1 331221377Sdes local ret=0 332221377Sdes 333221377Sdes if [ -z "${run_service_as}" ] 334221377Sdes then 335294328Sdes accnt_name=$(/usr/bin/cygrunsrv -VQ sshd | 336294328Sdes /usr/bin/sed -ne 's/^Account *: *//gp') 337221377Sdes if [ "${accnt_name}" = "LocalSystem" ] 338221377Sdes then 339221377Sdes # Convert "LocalSystem" to "SYSTEM" as is the correct account name 340294328Sdes run_service_as="SYSTEM" 341294328Sdes else 342294328Sdes dom="${accnt_name%%\\*}" 343294328Sdes accnt_name="${accnt_name#*\\}" 344294328Sdes if [ "${dom}" = '.' ] 345294328Sdes then 346294328Sdes # Check local account 347294328Sdes run_service_as=$(/usr/bin/mkpasswd -l -u "${accnt_name}" | 348294328Sdes /usr/bin/awk -F: '{print $1;}') 349294328Sdes else 350294328Sdes # Check domain 351294328Sdes run_service_as=$(/usr/bin/mkpasswd -d "${dom}" -u "${accnt_name}" | 352294328Sdes /usr/bin/awk -F: '{print $1;}') 353294328Sdes fi 354221377Sdes fi 355221377Sdes if [ -z "${run_service_as}" ] 356221377Sdes then 357294332Sdes csih_warning "Couldn't determine name of user running sshd service from account database!" 358221377Sdes csih_warning "As a result, this script cannot make sure that the files used" 359221377Sdes csih_warning "by the sshd service belong to the user running the service." 360221377Sdes return 1 361221377Sdes fi 362221377Sdes fi 363221377Sdes for i in "${SYSCONFDIR}"/ssh_config "${SYSCONFDIR}"/sshd_config "${SYSCONFDIR}"/ssh_host_*key "${SYSCONFDIR}"/ssh_host_*key.pub 364221377Sdes do 365221377Sdes if [ -f "$i" ] 366221377Sdes then 367221377Sdes if ! chown "${run_service_as}".544 "$i" >/dev/null 2>&1 368221377Sdes then 369221377Sdes csih_warning "Couldn't change owner of $i!" 370221377Sdes let ++ret 371221377Sdes fi 372221377Sdes fi 373221377Sdes done 374221377Sdes if ! chown "${run_service_as}".544 ${LOCALSTATEDIR}/empty >/dev/null 2>&1 375221377Sdes then 376221377Sdes csih_warning "Couldn't change owner of ${LOCALSTATEDIR}/empty!" 377221377Sdes let ++ret 378221377Sdes fi 379221377Sdes if ! chown "${run_service_as}".544 ${LOCALSTATEDIR}/log/lastlog >/dev/null 2>&1 380221377Sdes then 381221377Sdes csih_warning "Couldn't change owner of ${LOCALSTATEDIR}/log/lastlog!" 382221377Sdes let ++ret 383221377Sdes fi 384221377Sdes if [ -f ${LOCALSTATEDIR}/log/sshd.log ] 385221377Sdes then 386221377Sdes if ! chown "${run_service_as}".544 ${LOCALSTATEDIR}/log/sshd.log >/dev/null 2>&1 387221377Sdes then 388221377Sdes csih_warning "Couldn't change owner of ${LOCALSTATEDIR}/log/sshd.log!" 389221377Sdes let ++ret 390221377Sdes fi 391221377Sdes fi 392221377Sdes if [ $ret -ne 0 ] 393221377Sdes then 394221377Sdes csih_warning "Couldn't change owner of important files to ${run_service_as}!" 395221377Sdes csih_warning "This may cause the sshd service to fail! Please make sure that" 396221377Sdes csih_warning "you have suufficient permissions to change the ownership of files" 397221377Sdes csih_warning "and try to run the ssh-host-config script again." 398221377Sdes fi 399221377Sdes return $ret 400221377Sdes} # --- End of check_service_files_ownership --- # 401221377Sdes 402221377Sdes# ====================================================================== 403180750Sdes# Routine: install_service 404180750Sdes# Install sshd as a service 405180750Sdes# ====================================================================== 406180750Sdesinstall_service() { 407180750Sdes local run_service_as 408180750Sdes local password 409221377Sdes local ret=0 410180750Sdes 411221377Sdes echo 412294332Sdes if /usr/bin/cygrunsrv -Q ${service_name} >/dev/null 2>&1 413180750Sdes then 414221377Sdes csih_inform "Sshd service is already installed." 415221377Sdes check_service_files_ownership "" || let ret+=$? 416221377Sdes else 417221377Sdes echo -e "${_csih_QUERY_STR} Do you want to install sshd as a service?" 418221377Sdes if csih_request "(Say \"no\" if it is already installed as a service)" 419180750Sdes then 420221377Sdes csih_get_cygenv "${cygwin_value}" 421221377Sdes 422221377Sdes if ( csih_is_nt2003 || [ "$csih_FORCE_PRIVILEGED_USER" = "yes" ] ) 423180750Sdes then 424221377Sdes csih_inform "On Windows Server 2003, Windows Vista, and above, the" 425221377Sdes csih_inform "SYSTEM account cannot setuid to other users -- a capability" 426221377Sdes csih_inform "sshd requires. You need to have or to create a privileged" 427221377Sdes csih_inform "account. This script will help you do so." 428221377Sdes echo 429180750Sdes 430221377Sdes [ "${opt_force}" = "yes" ] && opt_f=-f 431221377Sdes [ -n "${user_account}" ] && opt_u="-u ""${user_account}""" 432221377Sdes csih_select_privileged_username ${opt_f} ${opt_u} sshd 433221377Sdes 434221377Sdes if ! csih_create_privileged_user "${password_value}" 435189006Sdes then 436221377Sdes csih_error_recoverable "There was a serious problem creating a privileged user." 437221377Sdes csih_request "Do you want to proceed anyway?" || exit 1 438221377Sdes let ++ret 439189006Sdes fi 440221377Sdes fi 441180750Sdes 442221377Sdes # Never returns empty if NT or above 443221377Sdes run_service_as=$(csih_service_should_run_as) 444180750Sdes 445221377Sdes if [ "${run_service_as}" = "${csih_PRIVILEGED_USERNAME}" ] 446221377Sdes then 447221377Sdes password="${csih_PRIVILEGED_PASSWORD}" 448221377Sdes if [ -z "${password}" ] 449189006Sdes then 450221377Sdes csih_get_value "Please enter the password for user '${run_service_as}':" "-s" 451221377Sdes password="${csih_value}" 452189006Sdes fi 453221377Sdes fi 454180750Sdes 455221377Sdes # At this point, we either have $run_service_as = "system" and 456221377Sdes # $password is empty, or $run_service_as is some privileged user and 457221377Sdes # (hopefully) $password contains the correct password. So, from here 458221377Sdes # out, we use '-z "${password}"' to discriminate the two cases. 459180750Sdes 460221377Sdes csih_check_user "${run_service_as}" 461180750Sdes 462221377Sdes if [ -n "${csih_cygenv}" ] 463221377Sdes then 464221377Sdes cygwin_env=( -e "CYGWIN=${csih_cygenv}" ) 465221377Sdes fi 466221377Sdes if [ -z "${password}" ] 467221377Sdes then 468294332Sdes if /usr/bin/cygrunsrv -I ${service_name} -d "CYGWIN ${service_name}" -p /usr/sbin/sshd \ 469221377Sdes -a "-D" -y tcpip "${cygwin_env[@]}" 470189006Sdes then 471221377Sdes echo 472221377Sdes csih_inform "The sshd service has been installed under the LocalSystem" 473221377Sdes csih_inform "account (also known as SYSTEM). To start the service now, call" 474221377Sdes csih_inform "\`net start sshd' or \`cygrunsrv -S sshd'. Otherwise, it" 475221377Sdes csih_inform "will start automatically after the next reboot." 476189006Sdes fi 477221377Sdes else 478294332Sdes if /usr/bin/cygrunsrv -I ${service_name} -d "CYGWIN ${service_name}" -p /usr/sbin/sshd \ 479221377Sdes -a "-D" -y tcpip "${cygwin_env[@]}" \ 480221377Sdes -u "${run_service_as}" -w "${password}" 481189006Sdes then 482239849Sdes /usr/bin/editrights -u "${run_service_as}" -a SeServiceLogonRight 483221377Sdes echo 484221377Sdes csih_inform "The sshd service has been installed under the '${run_service_as}'" 485294332Sdes csih_inform "account. To start the service now, call \`net start ${service_name}' or" 486294332Sdes csih_inform "\`cygrunsrv -S ${service_name}'. Otherwise, it will start automatically" 487221377Sdes csih_inform "after the next reboot." 488189006Sdes fi 489221377Sdes fi 490180750Sdes 491294332Sdes if /usr/bin/cygrunsrv -Q ${service_name} >/dev/null 2>&1 492221377Sdes then 493221377Sdes check_service_files_ownership "${run_service_as}" || let ret+=$? 494221377Sdes else 495221377Sdes csih_error_recoverable "Installing sshd as a service failed!" 496221377Sdes let ++ret 497221377Sdes fi 498221377Sdes fi # user allowed us to install as service 499221377Sdes fi # service not yet installed 500221377Sdes return $ret 501180750Sdes} # --- End of install_service --- # 502180750Sdes 503180750Sdes# ====================================================================== 504180750Sdes# Main Entry Point 505180750Sdes# ====================================================================== 506180750Sdes 507180750Sdes# Check how the script has been started. If 508180750Sdes# (1) it has been started by giving the full path and 509180750Sdes# that path is /etc/postinstall, OR 510180750Sdes# (2) Otherwise, if the environment variable 511180750Sdes# SSH_HOST_CONFIG_AUTO_ANSWER_NO is set 512180750Sdes# then set auto_answer to "no". This allows automatic 513180750Sdes# creation of the config files in /etc w/o overwriting 514180750Sdes# them if they already exist. In both cases, color 515180750Sdes# escape sequences are suppressed, so as to prevent 516180750Sdes# cluttering setup's logfiles. 517180750Sdesif [ "$PROGDIR" = "/etc/postinstall" ] 518180750Sdesthen 519180750Sdes csih_auto_answer="no" 520180750Sdes csih_disable_color 521197670Sdes opt_force=yes 522180750Sdesfi 523180750Sdesif [ -n "${SSH_HOST_CONFIG_AUTO_ANSWER_NO}" ] 524180750Sdesthen 525180750Sdes csih_auto_answer="no" 526180750Sdes csih_disable_color 527197670Sdes opt_force=yes 528180750Sdesfi 529180750Sdes 530180750Sdes# ====================================================================== 531180750Sdes# Parse options 532180750Sdes# ====================================================================== 533180740Sdeswhile : 534180740Sdesdo 535180740Sdes case $# in 536180740Sdes 0) 537180740Sdes break 538180740Sdes ;; 539180740Sdes esac 540180740Sdes 541180740Sdes option=$1 542180740Sdes shift 543180740Sdes 544180740Sdes case "${option}" in 545180740Sdes -d | --debug ) 546180740Sdes set -x 547180750Sdes csih_trace_on 548180740Sdes ;; 549180740Sdes 550180740Sdes -y | --yes ) 551180750Sdes csih_auto_answer=yes 552197670Sdes opt_force=yes 553180740Sdes ;; 554180740Sdes 555180740Sdes -n | --no ) 556180750Sdes csih_auto_answer=no 557197670Sdes opt_force=yes 558180740Sdes ;; 559180740Sdes 560180740Sdes -c | --cygwin ) 561180740Sdes cygwin_value="$1" 562180740Sdes shift 563180740Sdes ;; 564180740Sdes 565294332Sdes -N | --name ) 566294332Sdes service_name=$1 567294332Sdes shift 568294332Sdes ;; 569294332Sdes 570180740Sdes -p | --port ) 571180740Sdes port_number=$1 572180740Sdes shift 573180740Sdes ;; 574180740Sdes 575197670Sdes -u | --user ) 576197670Sdes user_account="$1" 577197670Sdes shift 578197670Sdes ;; 579197670Sdes 580180740Sdes -w | --pwd ) 581180740Sdes password_value="$1" 582180740Sdes shift 583180740Sdes ;; 584180740Sdes 585180750Sdes --privileged ) 586180750Sdes csih_FORCE_PRIVILEGED_USER=yes 587180750Sdes ;; 588180750Sdes 589180740Sdes *) 590180740Sdes echo "usage: ${progname} [OPTION]..." 591180740Sdes echo 592180740Sdes echo "This script creates an OpenSSH host configuration." 593180740Sdes echo 594180740Sdes echo "Options:" 595180740Sdes echo " --debug -d Enable shell's debug output." 596180740Sdes echo " --yes -y Answer all questions with \"yes\" automatically." 597180740Sdes echo " --no -n Answer all questions with \"no\" automatically." 598180740Sdes echo " --cygwin -c <options> Use \"options\" as value for CYGWIN environment var." 599294332Sdes echo " --name -N <name> sshd windows service name." 600180740Sdes echo " --port -p <n> sshd listens on port n." 601255670Sdes echo " --user -u <account> privileged user for service, default 'cyg_server'." 602180750Sdes echo " --pwd -w <passwd> Use \"pwd\" as password for privileged user." 603255670Sdes echo " --privileged On Windows XP, require privileged user" 604180750Sdes echo " instead of LocalSystem for sshd service." 605180740Sdes echo 606180740Sdes exit 1 607180740Sdes ;; 608180740Sdes 609180740Sdes esac 610180740Sdesdone 611180740Sdes 612180750Sdes# ====================================================================== 613180750Sdes# Action! 614180750Sdes# ====================================================================== 615180740Sdes 616180740Sdes# Check for running ssh/sshd processes first. Refuse to do anything while 617180740Sdes# some ssh processes are still running 618221377Sdesif /usr/bin/ps -ef | /usr/bin/grep -q '/sshd\?$' 619180740Sdesthen 620180740Sdes echo 621180750Sdes csih_error "There are still ssh processes running. Please shut them down first." 622180740Sdesfi 623180740Sdes 624221377Sdes# Make sure the user is running in an administrative context 625221377Sdesadmin=$(/usr/bin/id -G | /usr/bin/grep -Eq '\<544\>' && echo yes || echo no) 626221377Sdesif [ "${admin}" != "yes" ] 627221377Sdesthen 628221377Sdes echo 629221377Sdes csih_warning "Running this script typically requires administrator privileges!" 630221377Sdes csih_warning "However, it seems your account does not have these privileges." 631221377Sdes csih_warning "Here's the list of groups in your user token:" 632221377Sdes echo 633294332Sdes /usr/bin/id -Gnz | xargs -0n1 echo " " 634221377Sdes echo 635221377Sdes csih_warning "This usually means you're running this script from a non-admin" 636221377Sdes csih_warning "desktop session, or in a non-elevated shell under UAC control." 637221377Sdes echo 638221377Sdes csih_warning "Make sure you have the appropriate privileges right now," 639221377Sdes csih_warning "otherwise parts of this script will probably fail!" 640221377Sdes echo 641221377Sdes echo -e "${_csih_QUERY_STR} Are you sure you want to continue? (Say \"no\" if you're not sure" 642221377Sdes if ! csih_request "you have the required privileges)" 643221377Sdes then 644221377Sdes echo 645221377Sdes csih_inform "Ok. Exiting. Make sure to switch to an administrative account" 646221377Sdes csih_inform "or to start this script from an elevated shell." 647221377Sdes exit 1 648221377Sdes fi 649221377Sdesfi 650221377Sdes 651221377Sdesecho 652221377Sdes 653221377Sdeswarning_cnt=0 654221377Sdes 655180750Sdes# Create /var/log/lastlog if not already exists 656180740Sdesif [ -e ${LOCALSTATEDIR}/log/lastlog -a ! -f ${LOCALSTATEDIR}/log/lastlog ] 657180740Sdesthen 658189006Sdes echo 659180750Sdes csih_error_multi "${LOCALSTATEDIR}/log/lastlog exists, but is not a file." \ 660189006Sdes "Cannot create ssh host configuration." 661180740Sdesfi 662180740Sdesif [ ! -e ${LOCALSTATEDIR}/log/lastlog ] 663180740Sdesthen 664221377Sdes /usr/bin/cat /dev/null > ${LOCALSTATEDIR}/log/lastlog 665221377Sdes if ! /usr/bin/chmod 644 ${LOCALSTATEDIR}/log/lastlog >/dev/null 2>&1 666221377Sdes then 667221377Sdes csih_warning "Can't set permissions on ${LOCALSTATEDIR}/log/lastlog!" 668221377Sdes let ++warning_cnt 669221377Sdes fi 670180740Sdesfi 671180740Sdes 672180740Sdes# Create /var/empty file used as chroot jail for privilege separation 673197670Sdescsih_make_dir "${LOCALSTATEDIR}/empty" "Cannot create ${LOCALSTATEDIR}/empty directory." 674221377Sdesif ! /usr/bin/chmod 755 "${LOCALSTATEDIR}/empty" >/dev/null 2>&1 675221377Sdesthen 676221377Sdes csih_warning "Can't set permissions on ${LOCALSTATEDIR}/empty!" 677221377Sdes let ++warning_cnt 678221377Sdesfi 679180740Sdes 680261320Sdes# generate missing host keys 681294328Sdescsih_inform "Generating missing SSH host keys" 682261320Sdes/usr/bin/ssh-keygen -A || let warning_cnt+=$? 683180740Sdes 684180750Sdes# handle ssh_config 685221377Sdescsih_install_config "${SYSCONFDIR}/ssh_config" "${SYSCONFDIR}/defaults" || let ++warning_cnt 686221377Sdesif /usr/bin/cmp "${SYSCONFDIR}/ssh_config" "${SYSCONFDIR}/defaults/${SYSCONFDIR}/ssh_config" >/dev/null 2>&1 687180740Sdesthen 688180740Sdes if [ "${port_number}" != "22" ] 689180740Sdes then 690180750Sdes csih_inform "Updating ${SYSCONFDIR}/ssh_config file with requested port" 691180740Sdes echo "Host localhost" >> ${SYSCONFDIR}/ssh_config 692180740Sdes echo " Port ${port_number}" >> ${SYSCONFDIR}/ssh_config 693180740Sdes fi 694180740Sdesfi 695180740Sdes 696180750Sdes# handle sshd_config (and privsep) 697221377Sdescsih_install_config "${SYSCONFDIR}/sshd_config" "${SYSCONFDIR}/defaults" || let ++warning_cnt 698221377Sdesif ! /usr/bin/cmp "${SYSCONFDIR}/sshd_config" "${SYSCONFDIR}/defaults/${SYSCONFDIR}/sshd_config" >/dev/null 2>&1 699180740Sdesthen 700294328Sdes sshd_config_configured=yes 701180740Sdesfi 702294328Sdessshd_strictmodes || let warning_cnt+=$? 703221377Sdessshd_privsep || let warning_cnt+=$? 704294328Sdessshd_config_tweak || let warning_cnt+=$? 705221377Sdesupdate_services_file || let warning_cnt+=$? 706221377Sdesupdate_inetd_conf || let warning_cnt+=$? 707221377Sdesinstall_service || let warning_cnt+=$? 708180740Sdes 709180750Sdesecho 710221377Sdesif [ $warning_cnt -eq 0 ] 711221377Sdesthen 712221377Sdes csih_inform "Host configuration finished. Have fun!" 713221377Sdeselse 714221377Sdes csih_warning "Host configuration exited with ${warning_cnt} errors or warnings!" 715221377Sdes csih_warning "Make sure that all problems reported are fixed," 716221377Sdes csih_warning "then re-run ssh-host-config." 717221377Sdesfi 718221377Sdesexit $warning_cnt 719