1#!/usr/bin/env perl 2#*************************************************************************** 3# _ _ ____ _ 4# Project ___| | | | _ \| | 5# / __| | | | |_) | | 6# | (__| |_| | _ <| |___ 7# \___|\___/|_| \_\_____| 8# 9# Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. 10# 11# This software is licensed as described in the file COPYING, which 12# you should have received as part of this distribution. The terms 13# are also available at https://curl.haxx.se/docs/copyright.html. 14# 15# You may opt to use, copy, modify, merge, publish, distribute and/or sell 16# copies of the Software, and permit persons to whom the Software is 17# furnished to do so, under the terms of the COPYING file. 18# 19# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 20# KIND, either express or implied. 21# 22#*************************************************************************** 23 24# Starts sshd for use in the SCP, SFTP and SOCKS curl test harness tests. 25# Also creates the ssh configuration files needed for these tests. 26 27use strict; 28use warnings; 29use Cwd; 30use Cwd 'abs_path'; 31 32#*************************************************************************** 33# Variables and subs imported from sshhelp module 34# 35use sshhelp qw( 36 $sshdexe 37 $sshexe 38 $sftpsrvexe 39 $sftpexe 40 $sshkeygenexe 41 $sshdconfig 42 $sshconfig 43 $sftpconfig 44 $knownhosts 45 $sshdlog 46 $sshlog 47 $sftplog 48 $sftpcmds 49 $hstprvkeyf 50 $hstpubkeyf 51 $cliprvkeyf 52 $clipubkeyf 53 display_sshdconfig 54 display_sshconfig 55 display_sftpconfig 56 display_sshdlog 57 display_sshlog 58 display_sftplog 59 dump_array 60 find_sshd 61 find_ssh 62 find_sftpsrv 63 find_sftp 64 find_sshkeygen 65 logmsg 66 sshversioninfo 67 ); 68 69#*************************************************************************** 70# Subs imported from serverhelp module 71# 72use serverhelp qw( 73 server_pidfilename 74 server_logfilename 75 ); 76 77use pathhelp; 78 79#*************************************************************************** 80 81my $verbose = 0; # set to 1 for debugging 82my $debugprotocol = 0; # set to 1 for protocol debugging 83my $port = 8999; # our default SCP/SFTP server port 84my $socksport = $port + 1; # our default SOCKS4/5 server port 85my $listenaddr = '127.0.0.1'; # default address on which to listen 86my $ipvnum = 4; # default IP version of listener address 87my $idnum = 1; # dafault ssh daemon instance number 88my $proto = 'ssh'; # protocol the ssh daemon speaks 89my $path = getcwd(); # current working directory 90my $logdir = $path .'/log'; # directory for log files 91my $username = $ENV{USER}; # default user 92my $pidfile; # ssh daemon pid file 93my $identity = 'curl_client_key'; # default identity file 94 95my $error; 96my @cfgarr; 97 98 99#*************************************************************************** 100# Parse command line options 101# 102while(@ARGV) { 103 if($ARGV[0] eq '--verbose') { 104 $verbose = 1; 105 } 106 elsif($ARGV[0] eq '--debugprotocol') { 107 $verbose = 1; 108 $debugprotocol = 1; 109 } 110 elsif($ARGV[0] eq '--user') { 111 if($ARGV[1]) { 112 $username = $ARGV[1]; 113 shift @ARGV; 114 } 115 } 116 elsif($ARGV[0] eq '--id') { 117 if($ARGV[1]) { 118 if($ARGV[1] =~ /^(\d+)$/) { 119 $idnum = $1 if($1 > 0); 120 shift @ARGV; 121 } 122 } 123 } 124 elsif($ARGV[0] eq '--ipv4') { 125 $ipvnum = 4; 126 $listenaddr = '127.0.0.1' if($listenaddr eq '::1'); 127 } 128 elsif($ARGV[0] eq '--ipv6') { 129 $ipvnum = 6; 130 $listenaddr = '::1' if($listenaddr eq '127.0.0.1'); 131 } 132 elsif($ARGV[0] eq '--addr') { 133 if($ARGV[1]) { 134 my $tmpstr = $ARGV[1]; 135 if($tmpstr =~ /^(\d\d?\d?)\.(\d\d?\d?)\.(\d\d?\d?)\.(\d\d?\d?)$/) { 136 $listenaddr = "$1.$2.$3.$4" if($ipvnum == 4); 137 shift @ARGV; 138 } 139 elsif($ipvnum == 6) { 140 $listenaddr = $tmpstr; 141 $listenaddr =~ s/^\[(.*)\]$/$1/; 142 shift @ARGV; 143 } 144 } 145 } 146 elsif($ARGV[0] eq '--pidfile') { 147 if($ARGV[1]) { 148 $pidfile = "$path/". $ARGV[1]; 149 shift @ARGV; 150 } 151 } 152 elsif($ARGV[0] eq '--sshport') { 153 if($ARGV[1]) { 154 if($ARGV[1] =~ /^(\d+)$/) { 155 $port = $1; 156 shift @ARGV; 157 } 158 } 159 } 160 elsif($ARGV[0] eq '--socksport') { 161 if($ARGV[1]) { 162 if($ARGV[1] =~ /^(\d+)$/) { 163 $socksport = $1; 164 shift @ARGV; 165 } 166 } 167 } 168 else { 169 print STDERR "\nWarning: sshserver.pl unknown parameter: $ARGV[0]\n"; 170 } 171 shift @ARGV; 172} 173 174 175#*************************************************************************** 176# Default ssh daemon pid file name 177# 178if(!$pidfile) { 179 $pidfile = "$path/". server_pidfilename($proto, $ipvnum, $idnum); 180} 181 182 183#*************************************************************************** 184# ssh, socks and sftp server log file names 185# 186$sshdlog = server_logfilename($logdir, 'ssh', $ipvnum, $idnum); 187$sftplog = server_logfilename($logdir, 'sftp', $ipvnum, $idnum); 188$sshlog = server_logfilename($logdir, 'socks', $ipvnum, $idnum); 189 190 191#*************************************************************************** 192# Logging level for ssh server and client 193# 194my $loglevel = $debugprotocol?'DEBUG3':'DEBUG2'; 195 196 197#*************************************************************************** 198# Validate username 199# 200if(!$username) { 201 $error = 'Will not run ssh server without a user name'; 202} 203elsif($username eq 'root') { 204 $error = 'Will not run ssh server as root to mitigate security risks'; 205} 206if($error) { 207 logmsg $error; 208 exit 1; 209} 210 211 212#*************************************************************************** 213# Find out ssh daemon canonical file name 214# 215my $sshd = find_sshd(); 216if(!$sshd) { 217 logmsg "cannot find $sshdexe"; 218 exit 1; 219} 220 221 222#*************************************************************************** 223# Find out ssh daemon version info 224# 225my ($sshdid, $sshdvernum, $sshdverstr, $sshderror) = sshversioninfo($sshd); 226if(!$sshdid) { 227 # Not an OpenSSH or SunSSH ssh daemon 228 logmsg $sshderror if($verbose); 229 logmsg 'SCP, SFTP and SOCKS tests require OpenSSH 2.9.9 or later'; 230 exit 1; 231} 232logmsg "ssh server found $sshd is $sshdverstr" if($verbose); 233 234 235#*************************************************************************** 236# ssh daemon command line options we might use and version support 237# 238# -e: log stderr : OpenSSH 2.9.0 and later 239# -f: sshd config file : OpenSSH 1.2.1 and later 240# -D: no daemon forking : OpenSSH 2.5.0 and later 241# -o: command-line option : OpenSSH 3.1.0 and later 242# -t: test config file : OpenSSH 2.9.9 and later 243# -?: sshd version info : OpenSSH 1.2.1 and later 244# 245# -e: log stderr : SunSSH 1.0.0 and later 246# -f: sshd config file : SunSSH 1.0.0 and later 247# -D: no daemon forking : SunSSH 1.0.0 and later 248# -o: command-line option : SunSSH 1.0.0 and later 249# -t: test config file : SunSSH 1.0.0 and later 250# -?: sshd version info : SunSSH 1.0.0 and later 251 252 253#*************************************************************************** 254# Verify minimum ssh daemon version 255# 256if((($sshdid =~ /OpenSSH/) && ($sshdvernum < 299)) || 257 (($sshdid =~ /SunSSH/) && ($sshdvernum < 100))) { 258 logmsg 'SCP, SFTP and SOCKS tests require OpenSSH 2.9.9 or later'; 259 exit 1; 260} 261 262 263#*************************************************************************** 264# Find out sftp server plugin canonical file name 265# 266my $sftpsrv = find_sftpsrv(); 267if(!$sftpsrv) { 268 logmsg "cannot find $sftpsrvexe"; 269 exit 1; 270} 271logmsg "sftp server plugin found $sftpsrv" if($verbose); 272 273 274#*************************************************************************** 275# Find out sftp client canonical file name 276# 277my $sftp = find_sftp(); 278if(!$sftp) { 279 logmsg "cannot find $sftpexe"; 280 exit 1; 281} 282logmsg "sftp client found $sftp" if($verbose); 283 284 285#*************************************************************************** 286# Find out ssh keygen canonical file name 287# 288my $sshkeygen = find_sshkeygen(); 289if(!$sshkeygen) { 290 logmsg "cannot find $sshkeygenexe"; 291 exit 1; 292} 293logmsg "ssh keygen found $sshkeygen" if($verbose); 294 295 296#*************************************************************************** 297# Find out ssh client canonical file name 298# 299my $ssh = find_ssh(); 300if(!$ssh) { 301 logmsg "cannot find $sshexe"; 302 exit 1; 303} 304 305 306#*************************************************************************** 307# Find out ssh client version info 308# 309my ($sshid, $sshvernum, $sshverstr, $ssherror) = sshversioninfo($ssh); 310if(!$sshid) { 311 # Not an OpenSSH or SunSSH ssh client 312 logmsg $ssherror if($verbose); 313 logmsg 'SCP, SFTP and SOCKS tests require OpenSSH 2.9.9 or later'; 314 exit 1; 315} 316logmsg "ssh client found $ssh is $sshverstr" if($verbose); 317 318 319#*************************************************************************** 320# ssh client command line options we might use and version support 321# 322# -D: dynamic app port forwarding : OpenSSH 2.9.9 and later 323# -F: ssh config file : OpenSSH 2.9.9 and later 324# -N: no shell/command : OpenSSH 2.1.0 and later 325# -p: connection port : OpenSSH 1.2.1 and later 326# -v: verbose messages : OpenSSH 1.2.1 and later 327# -vv: increase verbosity : OpenSSH 2.3.0 and later 328# -V: ssh version info : OpenSSH 1.2.1 and later 329# 330# -D: dynamic app port forwarding : SunSSH 1.0.0 and later 331# -F: ssh config file : SunSSH 1.0.0 and later 332# -N: no shell/command : SunSSH 1.0.0 and later 333# -p: connection port : SunSSH 1.0.0 and later 334# -v: verbose messages : SunSSH 1.0.0 and later 335# -vv: increase verbosity : SunSSH 1.0.0 and later 336# -V: ssh version info : SunSSH 1.0.0 and later 337 338 339#*************************************************************************** 340# Verify minimum ssh client version 341# 342if((($sshid =~ /OpenSSH/) && ($sshvernum < 299)) || 343 (($sshid =~ /SunSSH/) && ($sshvernum < 100))) { 344 logmsg 'SCP, SFTP and SOCKS tests require OpenSSH 2.9.9 or later'; 345 exit 1; 346} 347 348 349#*************************************************************************** 350# ssh keygen command line options we actually use and version support 351# 352# -C: identity comment : OpenSSH 1.2.1 and later 353# -f: key filename : OpenSSH 1.2.1 and later 354# -N: new passphrase : OpenSSH 1.2.1 and later 355# -q: quiet keygen : OpenSSH 1.2.1 and later 356# -t: key type : OpenSSH 2.5.0 and later 357# 358# -C: identity comment : SunSSH 1.0.0 and later 359# -f: key filename : SunSSH 1.0.0 and later 360# -N: new passphrase : SunSSH 1.0.0 and later 361# -q: quiet keygen : SunSSH 1.0.0 and later 362# -t: key type : SunSSH 1.0.0 and later 363 364 365#*************************************************************************** 366# Generate host and client key files for curl's tests 367# 368if((! -e $hstprvkeyf) || (! -s $hstprvkeyf) || 369 (! -e $hstpubkeyf) || (! -s $hstpubkeyf) || 370 (! -e $cliprvkeyf) || (! -s $cliprvkeyf) || 371 (! -e $clipubkeyf) || (! -s $clipubkeyf)) { 372 # Make sure all files are gone so ssh-keygen doesn't complain 373 unlink($hstprvkeyf, $hstpubkeyf, $cliprvkeyf, $clipubkeyf); 374 logmsg 'generating host keys...' if($verbose); 375 if(system "\"$sshkeygen\" -q -t rsa -f $hstprvkeyf -C 'curl test server' -N ''") { 376 logmsg 'Could not generate host key'; 377 exit 1; 378 } 379 logmsg 'generating client keys...' if($verbose); 380 if(system "\"$sshkeygen\" -q -t rsa -f $cliprvkeyf -C 'curl test client' -N ''") { 381 logmsg 'Could not generate client key'; 382 exit 1; 383 } 384} 385 386 387#*************************************************************************** 388# Convert paths for curl's tests running on Windows with Cygwin/Msys OpenSSH 389# 390my $clipubkeyf_config = abs_path("$path/$clipubkeyf"); 391my $hstprvkeyf_config = abs_path("$path/$hstprvkeyf"); 392my $pidfile_config = $pidfile; 393my $sftpsrv_config = $sftpsrv; 394 395if ($^O eq 'MSWin32' || $^O eq 'cygwin' || $^O eq 'msys') { 396 # Ensure to use MinGW/Cygwin paths 397 $clipubkeyf_config = pathhelp::build_sys_abs_path($clipubkeyf_config); 398 $hstprvkeyf_config = pathhelp::build_sys_abs_path($hstprvkeyf_config); 399 $pidfile_config = pathhelp::build_sys_abs_path($pidfile_config); 400 $sftpsrv_config = "internal-sftp"; 401} 402 403#*************************************************************************** 404# ssh daemon configuration file options we might use and version support 405# 406# AFSTokenPassing : OpenSSH 1.2.1 and later [1] 407# AcceptEnv : OpenSSH 3.9.0 and later 408# AddressFamily : OpenSSH 4.0.0 and later 409# AllowGroups : OpenSSH 1.2.1 and later 410# AllowTcpForwarding : OpenSSH 2.3.0 and later 411# AllowUsers : OpenSSH 1.2.1 and later 412# AuthorizedKeysFile : OpenSSH 2.9.9 and later 413# AuthorizedKeysFile2 : OpenSSH 2.9.9 and later 414# Banner : OpenSSH 2.5.0 and later 415# ChallengeResponseAuthentication : OpenSSH 2.5.0 and later 416# Ciphers : OpenSSH 2.1.0 and later [3] 417# ClientAliveCountMax : OpenSSH 2.9.0 and later 418# ClientAliveInterval : OpenSSH 2.9.0 and later 419# Compression : OpenSSH 3.3.0 and later 420# DenyGroups : OpenSSH 1.2.1 and later 421# DenyUsers : OpenSSH 1.2.1 and later 422# ForceCommand : OpenSSH 4.4.0 and later [3] 423# GatewayPorts : OpenSSH 2.1.0 and later 424# GSSAPIAuthentication : OpenSSH 3.7.0 and later [1] 425# GSSAPICleanupCredentials : OpenSSH 3.8.0 and later [1] 426# GSSAPIKeyExchange : SunSSH 1.0.0 and later [1] 427# GSSAPIStoreDelegatedCredentials : SunSSH 1.0.0 and later [1] 428# GSSCleanupCreds : SunSSH 1.0.0 and later [1] 429# GSSUseSessionCredCache : SunSSH 1.0.0 and later [1] 430# HostbasedAuthentication : OpenSSH 2.9.0 and later 431# HostbasedUsesNameFromPacketOnly : OpenSSH 2.9.0 and later 432# HostKey : OpenSSH 1.2.1 and later 433# IgnoreRhosts : OpenSSH 1.2.1 and later 434# IgnoreUserKnownHosts : OpenSSH 1.2.1 and later 435# KbdInteractiveAuthentication : OpenSSH 2.3.0 and later 436# KeepAlive : OpenSSH 1.2.1 and later 437# KerberosAuthentication : OpenSSH 1.2.1 and later [1] 438# KerberosGetAFSToken : OpenSSH 3.8.0 and later [1] 439# KerberosOrLocalPasswd : OpenSSH 1.2.1 and later [1] 440# KerberosTgtPassing : OpenSSH 1.2.1 and later [1] 441# KerberosTicketCleanup : OpenSSH 1.2.1 and later [1] 442# KeyRegenerationInterval : OpenSSH 1.2.1 and later 443# ListenAddress : OpenSSH 1.2.1 and later 444# LoginGraceTime : OpenSSH 1.2.1 and later 445# LogLevel : OpenSSH 1.2.1 and later 446# LookupClientHostnames : SunSSH 1.0.0 and later 447# MACs : OpenSSH 2.5.0 and later [3] 448# Match : OpenSSH 4.4.0 and later [3] 449# MaxAuthTries : OpenSSH 3.9.0 and later 450# MaxStartups : OpenSSH 2.2.0 and later 451# PAMAuthenticationViaKbdInt : OpenSSH 2.9.0 and later [2] 452# PasswordAuthentication : OpenSSH 1.2.1 and later 453# PermitEmptyPasswords : OpenSSH 1.2.1 and later 454# PermitOpen : OpenSSH 4.4.0 and later [3] 455# PermitRootLogin : OpenSSH 1.2.1 and later 456# PermitTunnel : OpenSSH 4.3.0 and later 457# PermitUserEnvironment : OpenSSH 3.5.0 and later 458# PidFile : OpenSSH 2.1.0 and later 459# Port : OpenSSH 1.2.1 and later 460# PrintLastLog : OpenSSH 2.9.0 and later 461# PrintMotd : OpenSSH 1.2.1 and later 462# Protocol : OpenSSH 2.1.0 and later 463# PubkeyAuthentication : OpenSSH 2.5.0 and later 464# RhostsAuthentication : OpenSSH 1.2.1 and later 465# RhostsRSAAuthentication : OpenSSH 1.2.1 and later 466# RSAAuthentication : OpenSSH 1.2.1 and later 467# ServerKeyBits : OpenSSH 1.2.1 and later 468# SkeyAuthentication : OpenSSH 1.2.1 and later [1] 469# StrictModes : OpenSSH 1.2.1 and later 470# Subsystem : OpenSSH 2.2.0 and later 471# SyslogFacility : OpenSSH 1.2.1 and later 472# TCPKeepAlive : OpenSSH 3.8.0 and later 473# UseDNS : OpenSSH 3.7.0 and later 474# UseLogin : OpenSSH 1.2.1 and later 475# UsePAM : OpenSSH 3.7.0 and later [1][2] 476# UsePrivilegeSeparation : OpenSSH 3.2.2 and later 477# VerifyReverseMapping : OpenSSH 3.1.0 and later 478# X11DisplayOffset : OpenSSH 1.2.1 and later [3] 479# X11Forwarding : OpenSSH 1.2.1 and later 480# X11UseLocalhost : OpenSSH 3.1.0 and later 481# XAuthLocation : OpenSSH 2.1.1 and later [3] 482# 483# [1] Option only available if activated at compile time 484# [2] Option specific for portable versions 485# [3] Option not used in our ssh server config file 486 487 488#*************************************************************************** 489# Initialize sshd config with options actually supported in OpenSSH 2.9.9 490# 491logmsg 'generating ssh server config file...' if($verbose); 492@cfgarr = (); 493push @cfgarr, '# This is a generated file. Do not edit.'; 494push @cfgarr, "# $sshdverstr sshd configuration file for curl testing"; 495push @cfgarr, '#'; 496push @cfgarr, "DenyUsers !$username"; 497push @cfgarr, "AllowUsers $username"; 498push @cfgarr, 'DenyGroups'; 499push @cfgarr, 'AllowGroups'; 500push @cfgarr, '#'; 501push @cfgarr, "AuthorizedKeysFile $clipubkeyf_config"; 502push @cfgarr, "AuthorizedKeysFile2 $clipubkeyf_config"; 503push @cfgarr, "HostKey $hstprvkeyf_config"; 504push @cfgarr, "PidFile $pidfile_config"; 505push @cfgarr, '#'; 506push @cfgarr, "Port $port"; 507push @cfgarr, "ListenAddress $listenaddr"; 508push @cfgarr, 'Protocol 2'; 509push @cfgarr, '#'; 510push @cfgarr, 'AllowTcpForwarding yes'; 511push @cfgarr, 'Banner none'; 512push @cfgarr, 'ChallengeResponseAuthentication no'; 513push @cfgarr, 'ClientAliveCountMax 3'; 514push @cfgarr, 'ClientAliveInterval 0'; 515push @cfgarr, 'GatewayPorts no'; 516push @cfgarr, 'HostbasedAuthentication no'; 517push @cfgarr, 'HostbasedUsesNameFromPacketOnly no'; 518push @cfgarr, 'IgnoreRhosts yes'; 519push @cfgarr, 'IgnoreUserKnownHosts yes'; 520push @cfgarr, 'KeyRegenerationInterval 0'; 521push @cfgarr, 'LoginGraceTime 30'; 522push @cfgarr, "LogLevel $loglevel"; 523push @cfgarr, 'MaxStartups 5'; 524push @cfgarr, 'PasswordAuthentication no'; 525push @cfgarr, 'PermitEmptyPasswords no'; 526push @cfgarr, 'PermitRootLogin no'; 527push @cfgarr, 'PrintLastLog no'; 528push @cfgarr, 'PrintMotd no'; 529push @cfgarr, 'PubkeyAuthentication yes'; 530push @cfgarr, 'RhostsRSAAuthentication no'; 531push @cfgarr, 'RSAAuthentication no'; 532push @cfgarr, 'ServerKeyBits 768'; 533push @cfgarr, 'StrictModes no'; 534push @cfgarr, "Subsystem sftp \"$sftpsrv_config\""; 535push @cfgarr, 'SyslogFacility AUTH'; 536push @cfgarr, 'UseLogin no'; 537push @cfgarr, 'X11Forwarding no'; 538push @cfgarr, '#'; 539 540 541#*************************************************************************** 542# Write out initial sshd configuration file for curl's tests 543# 544$error = dump_array($sshdconfig, @cfgarr); 545if($error) { 546 logmsg $error; 547 exit 1; 548} 549 550 551#*************************************************************************** 552# Verifies at run time if sshd supports a given configuration file option 553# 554sub sshd_supports_opt { 555 my ($option, $value) = @_; 556 my $err; 557 # 558 if((($sshdid =~ /OpenSSH/) && ($sshdvernum >= 310)) || 559 ($sshdid =~ /SunSSH/)) { 560 # ssh daemon supports command line options -t -f and -o 561 $err = grep /((Unsupported)|(Bad configuration)|(Deprecated)) option.*$option/, 562 qx("$sshd" -t -f $sshdconfig -o "$option=$value" 2>&1); 563 return !$err; 564 } 565 if(($sshdid =~ /OpenSSH/) && ($sshdvernum >= 299)) { 566 # ssh daemon supports command line options -t and -f 567 $err = dump_array($sshdconfig, (@cfgarr, "$option $value")); 568 if($err) { 569 logmsg $err; 570 return 0; 571 } 572 $err = grep /((Unsupported)|(Bad configuration)|(Deprecated)) option.*$option/, 573 qx("$sshd" -t -f $sshdconfig 2>&1); 574 unlink $sshdconfig; 575 return !$err; 576 } 577 return 0; 578} 579 580 581#*************************************************************************** 582# Kerberos Authentication support may have not been built into sshd 583# 584if(sshd_supports_opt('KerberosAuthentication','no')) { 585 push @cfgarr, 'KerberosAuthentication no'; 586} 587if(sshd_supports_opt('KerberosGetAFSToken','no')) { 588 push @cfgarr, 'KerberosGetAFSToken no'; 589} 590if(sshd_supports_opt('KerberosOrLocalPasswd','no')) { 591 push @cfgarr, 'KerberosOrLocalPasswd no'; 592} 593if(sshd_supports_opt('KerberosTgtPassing','no')) { 594 push @cfgarr, 'KerberosTgtPassing no'; 595} 596if(sshd_supports_opt('KerberosTicketCleanup','yes')) { 597 push @cfgarr, 'KerberosTicketCleanup yes'; 598} 599 600 601#*************************************************************************** 602# Andrew File System support may have not been built into sshd 603# 604if(sshd_supports_opt('AFSTokenPassing','no')) { 605 push @cfgarr, 'AFSTokenPassing no'; 606} 607 608 609#*************************************************************************** 610# S/Key authentication support may have not been built into sshd 611# 612if(sshd_supports_opt('SkeyAuthentication','no')) { 613 push @cfgarr, 'SkeyAuthentication no'; 614} 615 616 617#*************************************************************************** 618# GSSAPI Authentication support may have not been built into sshd 619# 620my $sshd_builtwith_GSSAPI; 621if(sshd_supports_opt('GSSAPIAuthentication','no')) { 622 push @cfgarr, 'GSSAPIAuthentication no'; 623 $sshd_builtwith_GSSAPI = 1; 624} 625if(sshd_supports_opt('GSSAPICleanupCredentials','yes')) { 626 push @cfgarr, 'GSSAPICleanupCredentials yes'; 627} 628if(sshd_supports_opt('GSSAPIKeyExchange','no')) { 629 push @cfgarr, 'GSSAPIKeyExchange no'; 630} 631if(sshd_supports_opt('GSSAPIStoreDelegatedCredentials','no')) { 632 push @cfgarr, 'GSSAPIStoreDelegatedCredentials no'; 633} 634if(sshd_supports_opt('GSSCleanupCreds','yes')) { 635 push @cfgarr, 'GSSCleanupCreds yes'; 636} 637if(sshd_supports_opt('GSSUseSessionCredCache','no')) { 638 push @cfgarr, 'GSSUseSessionCredCache no'; 639} 640push @cfgarr, '#'; 641 642 643#*************************************************************************** 644# Options that might be supported or not in sshd OpenSSH 2.9.9 and later 645# 646if(sshd_supports_opt('AcceptEnv','')) { 647 push @cfgarr, 'AcceptEnv'; 648} 649if(sshd_supports_opt('AddressFamily','any')) { 650 # Address family must be specified before ListenAddress 651 splice @cfgarr, 14, 0, 'AddressFamily any'; 652} 653if(sshd_supports_opt('Compression','no')) { 654 push @cfgarr, 'Compression no'; 655} 656if(sshd_supports_opt('KbdInteractiveAuthentication','no')) { 657 push @cfgarr, 'KbdInteractiveAuthentication no'; 658} 659if(sshd_supports_opt('KeepAlive','no')) { 660 push @cfgarr, 'KeepAlive no'; 661} 662if(sshd_supports_opt('LookupClientHostnames','no')) { 663 push @cfgarr, 'LookupClientHostnames no'; 664} 665if(sshd_supports_opt('MaxAuthTries','10')) { 666 push @cfgarr, 'MaxAuthTries 10'; 667} 668if(sshd_supports_opt('PAMAuthenticationViaKbdInt','no')) { 669 push @cfgarr, 'PAMAuthenticationViaKbdInt no'; 670} 671if(sshd_supports_opt('PermitTunnel','no')) { 672 push @cfgarr, 'PermitTunnel no'; 673} 674if(sshd_supports_opt('PermitUserEnvironment','no')) { 675 push @cfgarr, 'PermitUserEnvironment no'; 676} 677if(sshd_supports_opt('RhostsAuthentication','no')) { 678 push @cfgarr, 'RhostsAuthentication no'; 679} 680if(sshd_supports_opt('TCPKeepAlive','no')) { 681 push @cfgarr, 'TCPKeepAlive no'; 682} 683if(sshd_supports_opt('UseDNS','no')) { 684 push @cfgarr, 'UseDNS no'; 685} 686if(sshd_supports_opt('UsePAM','no')) { 687 push @cfgarr, 'UsePAM no'; 688} 689 690if($sshdid =~ /OpenSSH/) { 691 # http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6492415 692 if(sshd_supports_opt('UsePrivilegeSeparation','no')) { 693 push @cfgarr, 'UsePrivilegeSeparation no'; 694 } 695} 696 697if(sshd_supports_opt('VerifyReverseMapping','no')) { 698 push @cfgarr, 'VerifyReverseMapping no'; 699} 700if(sshd_supports_opt('X11UseLocalhost','yes')) { 701 push @cfgarr, 'X11UseLocalhost yes'; 702} 703push @cfgarr, '#'; 704 705 706#*************************************************************************** 707# Write out resulting sshd configuration file for curl's tests 708# 709$error = dump_array($sshdconfig, @cfgarr); 710if($error) { 711 logmsg $error; 712 exit 1; 713} 714 715 716#*************************************************************************** 717# Verify that sshd actually supports our generated configuration file 718# 719if(system "\"$sshd\" -t -f $sshdconfig > $sshdlog 2>&1") { 720 logmsg "sshd configuration file $sshdconfig failed verification"; 721 display_sshdlog(); 722 display_sshdconfig(); 723 exit 1; 724} 725 726 727#*************************************************************************** 728# Generate ssh client host key database file for curl's tests 729# 730if((! -e $knownhosts) || (! -s $knownhosts)) { 731 logmsg 'generating ssh client known hosts file...' if($verbose); 732 unlink($knownhosts); 733 if(open(RSAKEYFILE, "<$hstpubkeyf")) { 734 my @rsahostkey = do { local $/ = ' '; <RSAKEYFILE> }; 735 if(close(RSAKEYFILE)) { 736 if(open(KNOWNHOSTS, ">$knownhosts")) { 737 print KNOWNHOSTS "$listenaddr ssh-rsa $rsahostkey[1]\n"; 738 if(!close(KNOWNHOSTS)) { 739 $error = "Error: cannot close file $knownhosts"; 740 } 741 } 742 else { 743 $error = "Error: cannot write file $knownhosts"; 744 } 745 } 746 else { 747 $error = "Error: cannot close file $hstpubkeyf"; 748 } 749 } 750 else { 751 $error = "Error: cannot read file $hstpubkeyf"; 752 } 753 if($error) { 754 logmsg $error; 755 exit 1; 756 } 757} 758 759 760#*************************************************************************** 761# Convert paths for curl's tests running on Windows using Cygwin OpenSSH 762# 763my $identity_config = abs_path("$path/$identity"); 764my $knownhosts_config = abs_path("$path/$knownhosts"); 765 766if ($^O eq 'MSWin32' || $^O eq 'cygwin' || $^O eq 'msys') { 767 # Ensure to use MinGW/Cygwin paths 768 $identity_config = pathhelp::build_sys_abs_path($identity_config); 769 $knownhosts_config = pathhelp::build_sys_abs_path($knownhosts_config); 770} 771 772 773#*************************************************************************** 774# ssh client configuration file options we might use and version support 775# 776# AddressFamily : OpenSSH 3.7.0 and later 777# BatchMode : OpenSSH 1.2.1 and later 778# BindAddress : OpenSSH 2.9.9 and later 779# ChallengeResponseAuthentication : OpenSSH 2.5.0 and later 780# CheckHostIP : OpenSSH 1.2.1 and later 781# Cipher : OpenSSH 1.2.1 and later [3] 782# Ciphers : OpenSSH 2.1.0 and later [3] 783# ClearAllForwardings : OpenSSH 2.9.9 and later 784# Compression : OpenSSH 1.2.1 and later 785# CompressionLevel : OpenSSH 1.2.1 and later [3] 786# ConnectionAttempts : OpenSSH 1.2.1 and later 787# ConnectTimeout : OpenSSH 3.7.0 and later 788# ControlMaster : OpenSSH 3.9.0 and later 789# ControlPath : OpenSSH 3.9.0 and later 790# DisableBanner : SunSSH 1.2.0 and later 791# DynamicForward : OpenSSH 2.9.0 and later 792# EnableSSHKeysign : OpenSSH 3.6.0 and later 793# EscapeChar : OpenSSH 1.2.1 and later [3] 794# ExitOnForwardFailure : OpenSSH 4.4.0 and later 795# ForwardAgent : OpenSSH 1.2.1 and later 796# ForwardX11 : OpenSSH 1.2.1 and later 797# ForwardX11Trusted : OpenSSH 3.8.0 and later 798# GatewayPorts : OpenSSH 1.2.1 and later 799# GlobalKnownHostsFile : OpenSSH 1.2.1 and later 800# GSSAPIAuthentication : OpenSSH 3.7.0 and later [1] 801# GSSAPIDelegateCredentials : OpenSSH 3.7.0 and later [1] 802# HashKnownHosts : OpenSSH 4.0.0 and later 803# Host : OpenSSH 1.2.1 and later 804# HostbasedAuthentication : OpenSSH 2.9.0 and later 805# HostKeyAlgorithms : OpenSSH 2.9.0 and later [3] 806# HostKeyAlias : OpenSSH 2.5.0 and later [3] 807# HostName : OpenSSH 1.2.1 and later 808# IdentitiesOnly : OpenSSH 3.9.0 and later 809# IdentityFile : OpenSSH 1.2.1 and later 810# IgnoreIfUnknown : SunSSH 1.2.0 and later 811# KeepAlive : OpenSSH 1.2.1 and later 812# KbdInteractiveAuthentication : OpenSSH 2.3.0 and later 813# KbdInteractiveDevices : OpenSSH 2.3.0 and later [3] 814# LocalCommand : OpenSSH 4.3.0 and later [3] 815# LocalForward : OpenSSH 1.2.1 and later [3] 816# LogLevel : OpenSSH 1.2.1 and later 817# MACs : OpenSSH 2.5.0 and later [3] 818# NoHostAuthenticationForLocalhost : OpenSSH 3.0.0 and later 819# NumberOfPasswordPrompts : OpenSSH 1.2.1 and later 820# PasswordAuthentication : OpenSSH 1.2.1 and later 821# PermitLocalCommand : OpenSSH 4.3.0 and later 822# Port : OpenSSH 1.2.1 and later 823# PreferredAuthentications : OpenSSH 2.5.2 and later 824# Protocol : OpenSSH 2.1.0 and later 825# ProxyCommand : OpenSSH 1.2.1 and later [3] 826# PubkeyAuthentication : OpenSSH 2.5.0 and later 827# RekeyLimit : OpenSSH 3.7.0 and later 828# RemoteForward : OpenSSH 1.2.1 and later [3] 829# RhostsRSAAuthentication : OpenSSH 1.2.1 and later 830# RSAAuthentication : OpenSSH 1.2.1 and later 831# SendEnv : OpenSSH 3.9.0 and later 832# ServerAliveCountMax : OpenSSH 3.8.0 and later 833# ServerAliveInterval : OpenSSH 3.8.0 and later 834# SmartcardDevice : OpenSSH 2.9.9 and later [1][3] 835# StrictHostKeyChecking : OpenSSH 1.2.1 and later 836# TCPKeepAlive : OpenSSH 3.8.0 and later 837# Tunnel : OpenSSH 4.3.0 and later 838# TunnelDevice : OpenSSH 4.3.0 and later [3] 839# UsePAM : OpenSSH 3.7.0 and later [1][2][3] 840# UsePrivilegedPort : OpenSSH 1.2.1 and later 841# User : OpenSSH 1.2.1 and later 842# UserKnownHostsFile : OpenSSH 1.2.1 and later 843# VerifyHostKeyDNS : OpenSSH 3.8.0 and later 844# XAuthLocation : OpenSSH 2.1.1 and later [3] 845# 846# [1] Option only available if activated at compile time 847# [2] Option specific for portable versions 848# [3] Option not used in our ssh client config file 849 850 851#*************************************************************************** 852# Initialize ssh config with options actually supported in OpenSSH 2.9.9 853# 854logmsg 'generating ssh client config file...' if($verbose); 855@cfgarr = (); 856push @cfgarr, '# This is a generated file. Do not edit.'; 857push @cfgarr, "# $sshverstr ssh client configuration file for curl testing"; 858push @cfgarr, '#'; 859push @cfgarr, 'Host *'; 860push @cfgarr, '#'; 861push @cfgarr, "Port $port"; 862push @cfgarr, "HostName $listenaddr"; 863push @cfgarr, "User $username"; 864push @cfgarr, 'Protocol 2'; 865push @cfgarr, '#'; 866push @cfgarr, "BindAddress $listenaddr"; 867push @cfgarr, "DynamicForward $socksport"; 868push @cfgarr, '#'; 869push @cfgarr, "IdentityFile $identity_config"; 870push @cfgarr, "UserKnownHostsFile $knownhosts_config"; 871push @cfgarr, '#'; 872push @cfgarr, 'BatchMode yes'; 873push @cfgarr, 'ChallengeResponseAuthentication no'; 874push @cfgarr, 'CheckHostIP no'; 875push @cfgarr, 'ClearAllForwardings no'; 876push @cfgarr, 'Compression no'; 877push @cfgarr, 'ConnectionAttempts 3'; 878push @cfgarr, 'ForwardAgent no'; 879push @cfgarr, 'ForwardX11 no'; 880push @cfgarr, 'GatewayPorts no'; 881push @cfgarr, 'GlobalKnownHostsFile /dev/null'; 882push @cfgarr, 'HostbasedAuthentication no'; 883push @cfgarr, 'KbdInteractiveAuthentication no'; 884push @cfgarr, "LogLevel $loglevel"; 885push @cfgarr, 'NumberOfPasswordPrompts 0'; 886push @cfgarr, 'PasswordAuthentication no'; 887push @cfgarr, 'PreferredAuthentications publickey'; 888push @cfgarr, 'PubkeyAuthentication yes'; 889push @cfgarr, 'RhostsRSAAuthentication no'; 890push @cfgarr, 'RSAAuthentication no'; 891 892# Disabled StrictHostKeyChecking since it makes the tests fail on my 893# OpenSSH_6.0p1 on Debian Linux / Daniel 894push @cfgarr, 'StrictHostKeyChecking no'; 895push @cfgarr, 'UsePrivilegedPort no'; 896push @cfgarr, '#'; 897 898 899#*************************************************************************** 900# Options supported in ssh client newer than OpenSSH 2.9.9 901# 902 903if(($sshid =~ /OpenSSH/) && ($sshvernum >= 370)) { 904 push @cfgarr, 'AddressFamily any'; 905} 906 907if((($sshid =~ /OpenSSH/) && ($sshvernum >= 370)) || 908 (($sshid =~ /SunSSH/) && ($sshvernum >= 120))) { 909 push @cfgarr, 'ConnectTimeout 30'; 910} 911 912if(($sshid =~ /OpenSSH/) && ($sshvernum >= 390)) { 913 push @cfgarr, 'ControlMaster no'; 914} 915 916if(($sshid =~ /OpenSSH/) && ($sshvernum >= 420)) { 917 push @cfgarr, 'ControlPath none'; 918} 919 920if(($sshid =~ /SunSSH/) && ($sshvernum >= 120)) { 921 push @cfgarr, 'DisableBanner yes'; 922} 923 924if(($sshid =~ /OpenSSH/) && ($sshvernum >= 360)) { 925 push @cfgarr, 'EnableSSHKeysign no'; 926} 927 928if(($sshid =~ /OpenSSH/) && ($sshvernum >= 440)) { 929 push @cfgarr, 'ExitOnForwardFailure yes'; 930} 931 932if((($sshid =~ /OpenSSH/) && ($sshvernum >= 380)) || 933 (($sshid =~ /SunSSH/) && ($sshvernum >= 120))) { 934 push @cfgarr, 'ForwardX11Trusted no'; 935} 936 937if(($sshd_builtwith_GSSAPI) && ($sshdid eq $sshid) && 938 ($sshdvernum == $sshvernum)) { 939 push @cfgarr, 'GSSAPIAuthentication no'; 940 push @cfgarr, 'GSSAPIDelegateCredentials no'; 941 if($sshid =~ /SunSSH/) { 942 push @cfgarr, 'GSSAPIKeyExchange no'; 943 } 944} 945 946if((($sshid =~ /OpenSSH/) && ($sshvernum >= 400)) || 947 (($sshid =~ /SunSSH/) && ($sshvernum >= 120))) { 948 push @cfgarr, 'HashKnownHosts no'; 949} 950 951if(($sshid =~ /OpenSSH/) && ($sshvernum >= 390)) { 952 push @cfgarr, 'IdentitiesOnly yes'; 953} 954 955if(($sshid =~ /SunSSH/) && ($sshvernum >= 120)) { 956 push @cfgarr, 'IgnoreIfUnknown no'; 957} 958 959if((($sshid =~ /OpenSSH/) && ($sshvernum < 380)) || 960 ($sshid =~ /SunSSH/)) { 961 push @cfgarr, 'KeepAlive no'; 962} 963 964if((($sshid =~ /OpenSSH/) && ($sshvernum >= 300)) || 965 ($sshid =~ /SunSSH/)) { 966 push @cfgarr, 'NoHostAuthenticationForLocalhost no'; 967} 968 969if(($sshid =~ /OpenSSH/) && ($sshvernum >= 430)) { 970 push @cfgarr, 'PermitLocalCommand no'; 971} 972 973if((($sshid =~ /OpenSSH/) && ($sshvernum >= 370)) || 974 (($sshid =~ /SunSSH/) && ($sshvernum >= 120))) { 975 push @cfgarr, 'RekeyLimit 1G'; 976} 977 978if(($sshid =~ /OpenSSH/) && ($sshvernum >= 390)) { 979 push @cfgarr, 'SendEnv'; 980} 981 982if((($sshid =~ /OpenSSH/) && ($sshvernum >= 380)) || 983 (($sshid =~ /SunSSH/) && ($sshvernum >= 120))) { 984 push @cfgarr, 'ServerAliveCountMax 3'; 985 push @cfgarr, 'ServerAliveInterval 0'; 986} 987 988if(($sshid =~ /OpenSSH/) && ($sshvernum >= 380)) { 989 push @cfgarr, 'TCPKeepAlive no'; 990} 991 992if(($sshid =~ /OpenSSH/) && ($sshvernum >= 430)) { 993 push @cfgarr, 'Tunnel no'; 994} 995 996if(($sshid =~ /OpenSSH/) && ($sshvernum >= 380)) { 997 push @cfgarr, 'VerifyHostKeyDNS no'; 998} 999 1000push @cfgarr, '#'; 1001 1002 1003#*************************************************************************** 1004# Write out resulting ssh client configuration file for curl's tests 1005# 1006$error = dump_array($sshconfig, @cfgarr); 1007if($error) { 1008 logmsg $error; 1009 exit 1; 1010} 1011 1012 1013#*************************************************************************** 1014# Initialize client sftp config with options actually supported. 1015# 1016logmsg 'generating sftp client config file...' if($verbose); 1017splice @cfgarr, 1, 1, "# $sshverstr sftp client configuration file for curl testing"; 1018# 1019for(my $i = scalar(@cfgarr) - 1; $i > 0; $i--) { 1020 if($cfgarr[$i] =~ /^DynamicForward/) { 1021 splice @cfgarr, $i, 1; 1022 next; 1023 } 1024 if($cfgarr[$i] =~ /^ClearAllForwardings/) { 1025 splice @cfgarr, $i, 1, "ClearAllForwardings yes"; 1026 next; 1027 } 1028} 1029 1030 1031#*************************************************************************** 1032# Write out resulting sftp client configuration file for curl's tests 1033# 1034$error = dump_array($sftpconfig, @cfgarr); 1035if($error) { 1036 logmsg $error; 1037 exit 1; 1038} 1039@cfgarr = (); 1040 1041 1042#*************************************************************************** 1043# Generate client sftp commands batch file for sftp server verification 1044# 1045logmsg 'generating sftp client commands file...' if($verbose); 1046push @cfgarr, 'pwd'; 1047push @cfgarr, 'quit'; 1048$error = dump_array($sftpcmds, @cfgarr); 1049if($error) { 1050 logmsg $error; 1051 exit 1; 1052} 1053@cfgarr = (); 1054 1055 1056#*************************************************************************** 1057# Start the ssh server daemon without forking it 1058# 1059logmsg "SCP/SFTP server listening on port $port" if($verbose); 1060my $rc = system "\"$sshd\" -e -D -f $sshdconfig > $sshdlog 2>&1"; 1061if($rc == -1) { 1062 logmsg "\"$sshd\" failed with: $!"; 1063} 1064elsif($rc & 127) { 1065 logmsg sprintf("\"$sshd\" died with signal %d, and %s coredump", 1066 ($rc & 127), ($rc & 128)?'a':'no'); 1067} 1068elsif($verbose && ($rc >> 8)) { 1069 logmsg sprintf("\"$sshd\" exited with %d", $rc >> 8); 1070} 1071 1072 1073#*************************************************************************** 1074# Clean up once the server has stopped 1075# 1076unlink($hstprvkeyf, $hstpubkeyf, $cliprvkeyf, $clipubkeyf, $knownhosts); 1077unlink($sshdconfig, $sshconfig, $sftpconfig); 1078 1079 1080exit 0; 1081