curl/tests/sshserver.pl
Marc Hoersken c1951cdb38
tests: use Cygwin/msys PIDs for stunnel and sshd on Windows
Since the Windows versions of both programs would write Windows
PIDs to their pidfiles which we cannot handle, we need to use
our known perl.exe Cygwin/msys PID together with exec() in order
to tie the spawned processes to the existance of our perl.exe

The perl.exe that is executing secureserver.pl and sshserver.pl
has a Cygwin/msys PID, because it is started inside Cygwin/msys.

Related to #5188
2020-04-11 23:46:15 +02:00

1155 lines
40 KiB
Perl

#!/usr/bin/env perl
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
#***************************************************************************
# Starts sshd for use in the SCP and SFTP curl test harness tests.
# Also creates the ssh configuration files needed for these tests.
use strict;
use warnings;
use Cwd;
use Cwd 'abs_path';
use Digest::MD5;
use Digest::MD5 'md5_hex';
use MIME::Base64;
#***************************************************************************
# Variables and subs imported from sshhelp module
#
use sshhelp qw(
$sshdexe
$sshexe
$sftpsrvexe
$sftpexe
$sshkeygenexe
$sshdconfig
$sshconfig
$sftpconfig
$knownhosts
$sshdlog
$sshlog
$sftplog
$sftpcmds
$hstprvkeyf
$hstpubkeyf
$hstpubmd5f
$cliprvkeyf
$clipubkeyf
display_sshdconfig
display_sshconfig
display_sftpconfig
display_sshdlog
display_sshlog
display_sftplog
dump_array
find_sshd
find_ssh
find_sftpsrv
find_sftp
find_sshkeygen
logmsg
sshversioninfo
);
#***************************************************************************
# Subs imported from serverhelp module
#
use serverhelp qw(
server_pidfilename
server_logfilename
);
use pathhelp;
#***************************************************************************
my $verbose = 0; # set to 1 for debugging
my $debugprotocol = 0; # set to 1 for protocol debugging
my $port = 8999; # our default SCP/SFTP server port
my $listenaddr = '127.0.0.1'; # default address on which to listen
my $ipvnum = 4; # default IP version of listener address
my $idnum = 1; # default ssh daemon instance number
my $proto = 'ssh'; # protocol the ssh daemon speaks
my $path = getcwd(); # current working directory
my $logdir = $path .'/log'; # directory for log files
my $username = $ENV{USER}; # default user
my $pidfile; # ssh daemon pid file
my $identity = 'curl_client_key'; # default identity file
my $error;
my @cfgarr;
#***************************************************************************
# Parse command line options
#
while(@ARGV) {
if($ARGV[0] eq '--verbose') {
$verbose = 1;
}
elsif($ARGV[0] eq '--debugprotocol') {
$verbose = 1;
$debugprotocol = 1;
}
elsif($ARGV[0] eq '--user') {
if($ARGV[1]) {
$username = $ARGV[1];
shift @ARGV;
}
}
elsif($ARGV[0] eq '--id') {
if($ARGV[1]) {
if($ARGV[1] =~ /^(\d+)$/) {
$idnum = $1 if($1 > 0);
shift @ARGV;
}
}
}
elsif($ARGV[0] eq '--ipv4') {
$ipvnum = 4;
$listenaddr = '127.0.0.1' if($listenaddr eq '::1');
}
elsif($ARGV[0] eq '--ipv6') {
$ipvnum = 6;
$listenaddr = '::1' if($listenaddr eq '127.0.0.1');
}
elsif($ARGV[0] eq '--addr') {
if($ARGV[1]) {
my $tmpstr = $ARGV[1];
if($tmpstr =~ /^(\d\d?\d?)\.(\d\d?\d?)\.(\d\d?\d?)\.(\d\d?\d?)$/) {
$listenaddr = "$1.$2.$3.$4" if($ipvnum == 4);
shift @ARGV;
}
elsif($ipvnum == 6) {
$listenaddr = $tmpstr;
$listenaddr =~ s/^\[(.*)\]$/$1/;
shift @ARGV;
}
}
}
elsif($ARGV[0] eq '--pidfile') {
if($ARGV[1]) {
$pidfile = "$path/". $ARGV[1];
shift @ARGV;
}
}
elsif($ARGV[0] eq '--sshport') {
if($ARGV[1]) {
if($ARGV[1] =~ /^(\d+)$/) {
$port = $1;
shift @ARGV;
}
}
}
else {
print STDERR "\nWarning: sshserver.pl unknown parameter: $ARGV[0]\n";
}
shift @ARGV;
}
#***************************************************************************
# Default ssh daemon pid file name
#
if(!$pidfile) {
$pidfile = "$path/". server_pidfilename($proto, $ipvnum, $idnum);
}
#***************************************************************************
# ssh and sftp server log file names
#
$sshdlog = server_logfilename($logdir, 'ssh', $ipvnum, $idnum);
$sftplog = server_logfilename($logdir, 'sftp', $ipvnum, $idnum);
#***************************************************************************
# Logging level for ssh server and client
#
my $loglevel = $debugprotocol?'DEBUG3':'DEBUG2';
#***************************************************************************
# Validate username
#
if(!$username) {
$error = 'Will not run ssh server without a user name';
}
elsif($username eq 'root') {
$error = 'Will not run ssh server as root to mitigate security risks';
}
if($error) {
logmsg $error;
exit 1;
}
#***************************************************************************
# Find out ssh daemon canonical file name
#
my $sshd = find_sshd();
if(!$sshd) {
logmsg "cannot find $sshdexe";
exit 1;
}
#***************************************************************************
# Find out ssh daemon version info
#
my ($sshdid, $sshdvernum, $sshdverstr, $sshderror) = sshversioninfo($sshd);
if(!$sshdid) {
# Not an OpenSSH or SunSSH ssh daemon
logmsg $sshderror if($verbose);
logmsg 'SCP and SFTP tests require OpenSSH 2.9.9 or later';
exit 1;
}
logmsg "ssh server found $sshd is $sshdverstr" if($verbose);
#***************************************************************************
# ssh daemon command line options we might use and version support
#
# -e: log stderr : OpenSSH 2.9.0 and later
# -f: sshd config file : OpenSSH 1.2.1 and later
# -D: no daemon forking : OpenSSH 2.5.0 and later
# -o: command-line option : OpenSSH 3.1.0 and later
# -t: test config file : OpenSSH 2.9.9 and later
# -?: sshd version info : OpenSSH 1.2.1 and later
#
# -e: log stderr : SunSSH 1.0.0 and later
# -f: sshd config file : SunSSH 1.0.0 and later
# -D: no daemon forking : SunSSH 1.0.0 and later
# -o: command-line option : SunSSH 1.0.0 and later
# -t: test config file : SunSSH 1.0.0 and later
# -?: sshd version info : SunSSH 1.0.0 and later
#***************************************************************************
# Verify minimum ssh daemon version
#
if((($sshdid =~ /OpenSSH/) && ($sshdvernum < 299)) ||
(($sshdid =~ /SunSSH/) && ($sshdvernum < 100))) {
logmsg 'SCP and SFTP tests require OpenSSH 2.9.9 or later';
exit 1;
}
#***************************************************************************
# Find out sftp server plugin canonical file name
#
my $sftpsrv = find_sftpsrv();
if(!$sftpsrv) {
logmsg "cannot find $sftpsrvexe";
exit 1;
}
logmsg "sftp server plugin found $sftpsrv" if($verbose);
#***************************************************************************
# Find out sftp client canonical file name
#
my $sftp = find_sftp();
if(!$sftp) {
logmsg "cannot find $sftpexe";
exit 1;
}
logmsg "sftp client found $sftp" if($verbose);
#***************************************************************************
# Find out ssh keygen canonical file name
#
my $sshkeygen = find_sshkeygen();
if(!$sshkeygen) {
logmsg "cannot find $sshkeygenexe";
exit 1;
}
logmsg "ssh keygen found $sshkeygen" if($verbose);
#***************************************************************************
# Find out ssh client canonical file name
#
my $ssh = find_ssh();
if(!$ssh) {
logmsg "cannot find $sshexe";
exit 1;
}
#***************************************************************************
# Find out ssh client version info
#
my ($sshid, $sshvernum, $sshverstr, $ssherror) = sshversioninfo($ssh);
if(!$sshid) {
# Not an OpenSSH or SunSSH ssh client
logmsg $ssherror if($verbose);
logmsg 'SCP and SFTP tests require OpenSSH 2.9.9 or later';
exit 1;
}
logmsg "ssh client found $ssh is $sshverstr" if($verbose);
#***************************************************************************
# ssh client command line options we might use and version support
#
# -D: dynamic app port forwarding : OpenSSH 2.9.9 and later
# -F: ssh config file : OpenSSH 2.9.9 and later
# -N: no shell/command : OpenSSH 2.1.0 and later
# -p: connection port : OpenSSH 1.2.1 and later
# -v: verbose messages : OpenSSH 1.2.1 and later
# -vv: increase verbosity : OpenSSH 2.3.0 and later
# -V: ssh version info : OpenSSH 1.2.1 and later
#
# -D: dynamic app port forwarding : SunSSH 1.0.0 and later
# -F: ssh config file : SunSSH 1.0.0 and later
# -N: no shell/command : SunSSH 1.0.0 and later
# -p: connection port : SunSSH 1.0.0 and later
# -v: verbose messages : SunSSH 1.0.0 and later
# -vv: increase verbosity : SunSSH 1.0.0 and later
# -V: ssh version info : SunSSH 1.0.0 and later
#***************************************************************************
# Verify minimum ssh client version
#
if((($sshid =~ /OpenSSH/) && ($sshvernum < 299)) ||
(($sshid =~ /SunSSH/) && ($sshvernum < 100))) {
logmsg 'SCP and SFTP tests require OpenSSH 2.9.9 or later';
exit 1;
}
#***************************************************************************
# ssh keygen command line options we actually use and version support
#
# -C: identity comment : OpenSSH 1.2.1 and later
# -f: key filename : OpenSSH 1.2.1 and later
# -N: new passphrase : OpenSSH 1.2.1 and later
# -q: quiet keygen : OpenSSH 1.2.1 and later
# -t: key type : OpenSSH 2.5.0 and later
#
# -C: identity comment : SunSSH 1.0.0 and later
# -f: key filename : SunSSH 1.0.0 and later
# -N: new passphrase : SunSSH 1.0.0 and later
# -q: quiet keygen : SunSSH 1.0.0 and later
# -t: key type : SunSSH 1.0.0 and later
#***************************************************************************
# Generate host and client key files for curl's tests
#
if((! -e $hstprvkeyf) || (! -s $hstprvkeyf) ||
(! -e $hstpubkeyf) || (! -s $hstpubkeyf) ||
(! -e $hstpubmd5f) || (! -s $hstpubmd5f) ||
(! -e $cliprvkeyf) || (! -s $cliprvkeyf) ||
(! -e $clipubkeyf) || (! -s $clipubkeyf)) {
# Make sure all files are gone so ssh-keygen doesn't complain
unlink($hstprvkeyf, $hstpubkeyf, $hstpubmd5f, $cliprvkeyf, $clipubkeyf);
logmsg 'generating host keys...' if($verbose);
if(system "\"$sshkeygen\" -q -t rsa -f $hstprvkeyf -C 'curl test server' -N ''") {
logmsg 'Could not generate host key';
exit 1;
}
logmsg 'generating client keys...' if($verbose);
if(system "\"$sshkeygen\" -q -t rsa -f $cliprvkeyf -C 'curl test client' -N ''") {
logmsg 'Could not generate client key';
exit 1;
}
# Make sure that permissions are restricted so openssh doesn't complain
system "chmod 600 $hstprvkeyf";
system "chmod 600 $cliprvkeyf";
# Save md5 hash of public host key
open(RSAKEYFILE, "<$hstpubkeyf");
my @rsahostkey = do { local $/ = ' '; <RSAKEYFILE> };
close(RSAKEYFILE);
if(!$rsahostkey[1]) {
logmsg 'Failed parsing base64 encoded RSA host key';
exit 1;
}
open(PUBMD5FILE, ">$hstpubmd5f");
print PUBMD5FILE md5_hex(decode_base64($rsahostkey[1]));
close(PUBMD5FILE);
if((! -e $hstpubmd5f) || (! -s $hstpubmd5f)) {
logmsg 'Failed writing md5 hash of RSA host key';
exit 1;
}
}
#***************************************************************************
# Convert paths for curl's tests running on Windows with Cygwin/Msys OpenSSH
#
my $clipubkeyf_config = abs_path("$path/$clipubkeyf");
my $hstprvkeyf_config = abs_path("$path/$hstprvkeyf");
my $pidfile_config = $pidfile;
my $sftpsrv_config = $sftpsrv;
if (pathhelp::os_is_win()) {
# Ensure to use MinGW/Cygwin paths
$clipubkeyf_config = pathhelp::build_sys_abs_path($clipubkeyf_config);
$hstprvkeyf_config = pathhelp::build_sys_abs_path($hstprvkeyf_config);
$pidfile_config = pathhelp::build_sys_abs_path($pidfile_config);
$sftpsrv_config = "internal-sftp";
}
if ($sshdid =~ /OpenSSH-Windows/) {
# Ensure to use native Windows paths with OpenSSH for Windows
$clipubkeyf_config = pathhelp::sys_native_abs_path($clipubkeyf);
$hstprvkeyf_config = pathhelp::sys_native_abs_path($hstprvkeyf);
$pidfile_config = pathhelp::sys_native_abs_path($pidfile);
$sftpsrv_config = pathhelp::sys_native_abs_path($sftpsrv);
$sshdconfig = pathhelp::sys_native_abs_path($sshdconfig);
$sshconfig = pathhelp::sys_native_abs_path($sshconfig);
$sftpconfig = pathhelp::sys_native_abs_path($sftpconfig);
}
#***************************************************************************
# ssh daemon configuration file options we might use and version support
#
# AFSTokenPassing : OpenSSH 1.2.1 and later [1]
# AcceptEnv : OpenSSH 3.9.0 and later
# AddressFamily : OpenSSH 4.0.0 and later
# AllowGroups : OpenSSH 1.2.1 and later
# AllowTcpForwarding : OpenSSH 2.3.0 and later
# AllowUsers : OpenSSH 1.2.1 and later
# AuthorizedKeysFile : OpenSSH 2.9.9 and later
# AuthorizedKeysFile2 : OpenSSH 2.9.9 and later
# Banner : OpenSSH 2.5.0 and later
# ChallengeResponseAuthentication : OpenSSH 2.5.0 and later
# Ciphers : OpenSSH 2.1.0 and later [3]
# ClientAliveCountMax : OpenSSH 2.9.0 and later
# ClientAliveInterval : OpenSSH 2.9.0 and later
# Compression : OpenSSH 3.3.0 and later
# DenyGroups : OpenSSH 1.2.1 and later
# DenyUsers : OpenSSH 1.2.1 and later
# ForceCommand : OpenSSH 4.4.0 and later [3]
# GatewayPorts : OpenSSH 2.1.0 and later
# GSSAPIAuthentication : OpenSSH 3.7.0 and later [1]
# GSSAPICleanupCredentials : OpenSSH 3.8.0 and later [1]
# GSSAPIKeyExchange : SunSSH 1.0.0 and later [1]
# GSSAPIStoreDelegatedCredentials : SunSSH 1.0.0 and later [1]
# GSSCleanupCreds : SunSSH 1.0.0 and later [1]
# GSSUseSessionCredCache : SunSSH 1.0.0 and later [1]
# HostbasedAuthentication : OpenSSH 2.9.0 and later
# HostbasedUsesNameFromPacketOnly : OpenSSH 2.9.0 and later
# HostKey : OpenSSH 1.2.1 and later
# IgnoreRhosts : OpenSSH 1.2.1 and later
# IgnoreUserKnownHosts : OpenSSH 1.2.1 and later
# KbdInteractiveAuthentication : OpenSSH 2.3.0 and later
# KeepAlive : OpenSSH 1.2.1 and later
# KerberosAuthentication : OpenSSH 1.2.1 and later [1]
# KerberosGetAFSToken : OpenSSH 3.8.0 and later [1]
# KerberosOrLocalPasswd : OpenSSH 1.2.1 and later [1]
# KerberosTgtPassing : OpenSSH 1.2.1 and later [1]
# KerberosTicketCleanup : OpenSSH 1.2.1 and later [1]
# KeyRegenerationInterval : OpenSSH 1.2.1 and later
# ListenAddress : OpenSSH 1.2.1 and later
# LoginGraceTime : OpenSSH 1.2.1 and later
# LogLevel : OpenSSH 1.2.1 and later
# LookupClientHostnames : SunSSH 1.0.0 and later
# MACs : OpenSSH 2.5.0 and later [3]
# Match : OpenSSH 4.4.0 and later [3]
# MaxAuthTries : OpenSSH 3.9.0 and later
# MaxStartups : OpenSSH 2.2.0 and later
# PAMAuthenticationViaKbdInt : OpenSSH 2.9.0 and later [2]
# PasswordAuthentication : OpenSSH 1.2.1 and later
# PermitEmptyPasswords : OpenSSH 1.2.1 and later
# PermitOpen : OpenSSH 4.4.0 and later [3]
# PermitRootLogin : OpenSSH 1.2.1 and later
# PermitTunnel : OpenSSH 4.3.0 and later
# PermitUserEnvironment : OpenSSH 3.5.0 and later
# PidFile : OpenSSH 2.1.0 and later
# Port : OpenSSH 1.2.1 and later
# PrintLastLog : OpenSSH 2.9.0 and later
# PrintMotd : OpenSSH 1.2.1 and later
# Protocol : OpenSSH 2.1.0 and later
# PubkeyAuthentication : OpenSSH 2.5.0 and later
# RhostsAuthentication : OpenSSH 1.2.1 and later
# RhostsRSAAuthentication : OpenSSH 1.2.1 and later
# RSAAuthentication : OpenSSH 1.2.1 and later
# ServerKeyBits : OpenSSH 1.2.1 and later
# SkeyAuthentication : OpenSSH 1.2.1 and later [1]
# StrictModes : OpenSSH 1.2.1 and later
# Subsystem : OpenSSH 2.2.0 and later
# SyslogFacility : OpenSSH 1.2.1 and later
# TCPKeepAlive : OpenSSH 3.8.0 and later
# UseDNS : OpenSSH 3.7.0 and later
# UseLogin : OpenSSH 1.2.1 and later
# UsePAM : OpenSSH 3.7.0 and later [1][2]
# UsePrivilegeSeparation : OpenSSH 3.2.2 and later
# VerifyReverseMapping : OpenSSH 3.1.0 and later
# X11DisplayOffset : OpenSSH 1.2.1 and later [3]
# X11Forwarding : OpenSSH 1.2.1 and later
# X11UseLocalhost : OpenSSH 3.1.0 and later
# XAuthLocation : OpenSSH 2.1.1 and later [3]
#
# [1] Option only available if activated at compile time
# [2] Option specific for portable versions
# [3] Option not used in our ssh server config file
#***************************************************************************
# Initialize sshd config with options actually supported in OpenSSH 2.9.9
#
logmsg 'generating ssh server config file...' if($verbose);
@cfgarr = ();
push @cfgarr, '# This is a generated file. Do not edit.';
push @cfgarr, "# $sshdverstr sshd configuration file for curl testing";
push @cfgarr, '#';
# AllowUsers and DenyUsers options should use lowercase on Windows
# and do not support quotes around values for some unknown reason.
if ($sshdid =~ /OpenSSH-Windows/) {
my $username_lc = lc $username;
push @cfgarr, "DenyUsers !$username_lc";
push @cfgarr, "AllowUsers $username_lc";
} else {
push @cfgarr, "DenyUsers !$username";
push @cfgarr, "AllowUsers $username";
}
push @cfgarr, 'DenyGroups';
push @cfgarr, 'AllowGroups';
push @cfgarr, '#';
push @cfgarr, "AuthorizedKeysFile $clipubkeyf_config";
push @cfgarr, "AuthorizedKeysFile2 $clipubkeyf_config";
push @cfgarr, "HostKey $hstprvkeyf_config";
if ($sshdid !~ /OpenSSH-Windows/) {
push @cfgarr, "PidFile $pidfile_config";
}
push @cfgarr, '#';
push @cfgarr, "Port $port";
push @cfgarr, "ListenAddress $listenaddr";
push @cfgarr, 'Protocol 2';
push @cfgarr, '#';
push @cfgarr, 'AllowTcpForwarding yes';
push @cfgarr, 'Banner none';
push @cfgarr, 'ChallengeResponseAuthentication no';
push @cfgarr, 'ClientAliveCountMax 3';
push @cfgarr, 'ClientAliveInterval 0';
push @cfgarr, 'GatewayPorts no';
push @cfgarr, 'HostbasedAuthentication no';
push @cfgarr, 'HostbasedUsesNameFromPacketOnly no';
push @cfgarr, 'IgnoreRhosts yes';
push @cfgarr, 'IgnoreUserKnownHosts yes';
push @cfgarr, 'KeyRegenerationInterval 0';
push @cfgarr, 'LoginGraceTime 30';
push @cfgarr, "LogLevel $loglevel";
push @cfgarr, 'MaxStartups 5';
push @cfgarr, 'PasswordAuthentication no';
push @cfgarr, 'PermitEmptyPasswords no';
push @cfgarr, 'PermitRootLogin no';
push @cfgarr, 'PrintLastLog no';
push @cfgarr, 'PrintMotd no';
push @cfgarr, 'PubkeyAuthentication yes';
push @cfgarr, 'RhostsRSAAuthentication no';
push @cfgarr, 'RSAAuthentication no';
push @cfgarr, 'ServerKeyBits 768';
push @cfgarr, 'StrictModes no';
push @cfgarr, "Subsystem sftp \"$sftpsrv_config\"";
push @cfgarr, 'SyslogFacility AUTH';
push @cfgarr, 'UseLogin no';
push @cfgarr, 'X11Forwarding no';
push @cfgarr, '#';
#***************************************************************************
# Write out initial sshd configuration file for curl's tests
#
$error = dump_array($sshdconfig, @cfgarr);
if($error) {
logmsg $error;
exit 1;
}
#***************************************************************************
# Verifies at run time if sshd supports a given configuration file option
#
sub sshd_supports_opt {
my ($option, $value) = @_;
my $err;
#
if((($sshdid =~ /OpenSSH/) && ($sshdvernum >= 310)) ||
($sshdid =~ /SunSSH/)) {
# ssh daemon supports command line options -t -f and -o
$err = grep /((Unsupported)|(Bad configuration)|(Deprecated)) option.*$option/,
qx("$sshd" -t -f $sshdconfig -o "$option=$value" 2>&1);
return !$err;
}
if(($sshdid =~ /OpenSSH/) && ($sshdvernum >= 299)) {
# ssh daemon supports command line options -t and -f
$err = dump_array($sshdconfig, (@cfgarr, "$option $value"));
if($err) {
logmsg $err;
return 0;
}
$err = grep /((Unsupported)|(Bad configuration)|(Deprecated)) option.*$option/,
qx("$sshd" -t -f $sshdconfig 2>&1);
unlink $sshdconfig;
return !$err;
}
return 0;
}
#***************************************************************************
# Kerberos Authentication support may have not been built into sshd
#
if(sshd_supports_opt('KerberosAuthentication','no')) {
push @cfgarr, 'KerberosAuthentication no';
}
if(sshd_supports_opt('KerberosGetAFSToken','no')) {
push @cfgarr, 'KerberosGetAFSToken no';
}
if(sshd_supports_opt('KerberosOrLocalPasswd','no')) {
push @cfgarr, 'KerberosOrLocalPasswd no';
}
if(sshd_supports_opt('KerberosTgtPassing','no')) {
push @cfgarr, 'KerberosTgtPassing no';
}
if(sshd_supports_opt('KerberosTicketCleanup','yes')) {
push @cfgarr, 'KerberosTicketCleanup yes';
}
#***************************************************************************
# Andrew File System support may have not been built into sshd
#
if(sshd_supports_opt('AFSTokenPassing','no')) {
push @cfgarr, 'AFSTokenPassing no';
}
#***************************************************************************
# S/Key authentication support may have not been built into sshd
#
if(sshd_supports_opt('SkeyAuthentication','no')) {
push @cfgarr, 'SkeyAuthentication no';
}
#***************************************************************************
# GSSAPI Authentication support may have not been built into sshd
#
my $sshd_builtwith_GSSAPI;
if(sshd_supports_opt('GSSAPIAuthentication','no')) {
push @cfgarr, 'GSSAPIAuthentication no';
$sshd_builtwith_GSSAPI = 1;
}
if(sshd_supports_opt('GSSAPICleanupCredentials','yes')) {
push @cfgarr, 'GSSAPICleanupCredentials yes';
}
if(sshd_supports_opt('GSSAPIKeyExchange','no')) {
push @cfgarr, 'GSSAPIKeyExchange no';
}
if(sshd_supports_opt('GSSAPIStoreDelegatedCredentials','no')) {
push @cfgarr, 'GSSAPIStoreDelegatedCredentials no';
}
if(sshd_supports_opt('GSSCleanupCreds','yes')) {
push @cfgarr, 'GSSCleanupCreds yes';
}
if(sshd_supports_opt('GSSUseSessionCredCache','no')) {
push @cfgarr, 'GSSUseSessionCredCache no';
}
push @cfgarr, '#';
#***************************************************************************
# Options that might be supported or not in sshd OpenSSH 2.9.9 and later
#
if(sshd_supports_opt('AcceptEnv','')) {
push @cfgarr, 'AcceptEnv';
}
if(sshd_supports_opt('AddressFamily','any')) {
# Address family must be specified before ListenAddress
splice @cfgarr, 14, 0, 'AddressFamily any';
}
if(sshd_supports_opt('Compression','no')) {
push @cfgarr, 'Compression no';
}
if(sshd_supports_opt('KbdInteractiveAuthentication','no')) {
push @cfgarr, 'KbdInteractiveAuthentication no';
}
if(sshd_supports_opt('KeepAlive','no')) {
push @cfgarr, 'KeepAlive no';
}
if(sshd_supports_opt('LookupClientHostnames','no')) {
push @cfgarr, 'LookupClientHostnames no';
}
if(sshd_supports_opt('MaxAuthTries','10')) {
push @cfgarr, 'MaxAuthTries 10';
}
if(sshd_supports_opt('PAMAuthenticationViaKbdInt','no')) {
push @cfgarr, 'PAMAuthenticationViaKbdInt no';
}
if(sshd_supports_opt('PermitTunnel','no')) {
push @cfgarr, 'PermitTunnel no';
}
if(sshd_supports_opt('PermitUserEnvironment','no')) {
push @cfgarr, 'PermitUserEnvironment no';
}
if(sshd_supports_opt('RhostsAuthentication','no')) {
push @cfgarr, 'RhostsAuthentication no';
}
if(sshd_supports_opt('TCPKeepAlive','no')) {
push @cfgarr, 'TCPKeepAlive no';
}
if(sshd_supports_opt('UseDNS','no')) {
push @cfgarr, 'UseDNS no';
}
if(sshd_supports_opt('UsePAM','no')) {
push @cfgarr, 'UsePAM no';
}
if($sshdid =~ /OpenSSH/) {
# http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6492415
if(sshd_supports_opt('UsePrivilegeSeparation','no')) {
push @cfgarr, 'UsePrivilegeSeparation no';
}
}
if(sshd_supports_opt('VerifyReverseMapping','no')) {
push @cfgarr, 'VerifyReverseMapping no';
}
if(sshd_supports_opt('X11UseLocalhost','yes')) {
push @cfgarr, 'X11UseLocalhost yes';
}
push @cfgarr, '#';
#***************************************************************************
# Write out resulting sshd configuration file for curl's tests
#
$error = dump_array($sshdconfig, @cfgarr);
if($error) {
logmsg $error;
exit 1;
}
#***************************************************************************
# Verify that sshd actually supports our generated configuration file
#
if(system "\"$sshd\" -t -f $sshdconfig > $sshdlog 2>&1") {
logmsg "sshd configuration file $sshdconfig failed verification";
display_sshdlog();
display_sshdconfig();
exit 1;
}
#***************************************************************************
# Generate ssh client host key database file for curl's tests
#
if((! -e $knownhosts) || (! -s $knownhosts)) {
logmsg 'generating ssh client known hosts file...' if($verbose);
unlink($knownhosts);
if(open(RSAKEYFILE, "<$hstpubkeyf")) {
my @rsahostkey = do { local $/ = ' '; <RSAKEYFILE> };
if(close(RSAKEYFILE)) {
if(open(KNOWNHOSTS, ">$knownhosts")) {
print KNOWNHOSTS "$listenaddr ssh-rsa $rsahostkey[1]\n";
if(!close(KNOWNHOSTS)) {
$error = "Error: cannot close file $knownhosts";
}
}
else {
$error = "Error: cannot write file $knownhosts";
}
}
else {
$error = "Error: cannot close file $hstpubkeyf";
}
}
else {
$error = "Error: cannot read file $hstpubkeyf";
}
if($error) {
logmsg $error;
exit 1;
}
}
#***************************************************************************
# Convert paths for curl's tests running on Windows using Cygwin OpenSSH
#
my $identity_config = abs_path("$path/$identity");
my $knownhosts_config = abs_path("$path/$knownhosts");
if (pathhelp::os_is_win()) {
# Ensure to use MinGW/Cygwin paths
$identity_config = pathhelp::build_sys_abs_path($identity_config);
$knownhosts_config = pathhelp::build_sys_abs_path($knownhosts_config);
}
if ($sshdid =~ /OpenSSH-Windows/) {
# Ensure to use native Windows paths with OpenSSH for Windows
$identity_config = pathhelp::sys_native_abs_path($identity);
$knownhosts_config = pathhelp::sys_native_abs_path($knownhosts);
}
#***************************************************************************
# ssh client configuration file options we might use and version support
#
# AddressFamily : OpenSSH 3.7.0 and later
# BatchMode : OpenSSH 1.2.1 and later
# BindAddress : OpenSSH 2.9.9 and later
# ChallengeResponseAuthentication : OpenSSH 2.5.0 and later
# CheckHostIP : OpenSSH 1.2.1 and later
# Cipher : OpenSSH 1.2.1 and later [3]
# Ciphers : OpenSSH 2.1.0 and later [3]
# ClearAllForwardings : OpenSSH 2.9.9 and later
# Compression : OpenSSH 1.2.1 and later
# CompressionLevel : OpenSSH 1.2.1 and later [3]
# ConnectionAttempts : OpenSSH 1.2.1 and later
# ConnectTimeout : OpenSSH 3.7.0 and later
# ControlMaster : OpenSSH 3.9.0 and later
# ControlPath : OpenSSH 3.9.0 and later
# DisableBanner : SunSSH 1.2.0 and later
# DynamicForward : OpenSSH 2.9.0 and later
# EnableSSHKeysign : OpenSSH 3.6.0 and later
# EscapeChar : OpenSSH 1.2.1 and later [3]
# ExitOnForwardFailure : OpenSSH 4.4.0 and later
# ForwardAgent : OpenSSH 1.2.1 and later
# ForwardX11 : OpenSSH 1.2.1 and later
# ForwardX11Trusted : OpenSSH 3.8.0 and later
# GatewayPorts : OpenSSH 1.2.1 and later
# GlobalKnownHostsFile : OpenSSH 1.2.1 and later
# GSSAPIAuthentication : OpenSSH 3.7.0 and later [1]
# GSSAPIDelegateCredentials : OpenSSH 3.7.0 and later [1]
# HashKnownHosts : OpenSSH 4.0.0 and later
# Host : OpenSSH 1.2.1 and later
# HostbasedAuthentication : OpenSSH 2.9.0 and later
# HostKeyAlgorithms : OpenSSH 2.9.0 and later [3]
# HostKeyAlias : OpenSSH 2.5.0 and later [3]
# HostName : OpenSSH 1.2.1 and later
# IdentitiesOnly : OpenSSH 3.9.0 and later
# IdentityFile : OpenSSH 1.2.1 and later
# IgnoreIfUnknown : SunSSH 1.2.0 and later
# KeepAlive : OpenSSH 1.2.1 and later
# KbdInteractiveAuthentication : OpenSSH 2.3.0 and later
# KbdInteractiveDevices : OpenSSH 2.3.0 and later [3]
# LocalCommand : OpenSSH 4.3.0 and later [3]
# LocalForward : OpenSSH 1.2.1 and later [3]
# LogLevel : OpenSSH 1.2.1 and later
# MACs : OpenSSH 2.5.0 and later [3]
# NoHostAuthenticationForLocalhost : OpenSSH 3.0.0 and later
# NumberOfPasswordPrompts : OpenSSH 1.2.1 and later
# PasswordAuthentication : OpenSSH 1.2.1 and later
# PermitLocalCommand : OpenSSH 4.3.0 and later
# Port : OpenSSH 1.2.1 and later
# PreferredAuthentications : OpenSSH 2.5.2 and later
# Protocol : OpenSSH 2.1.0 and later
# ProxyCommand : OpenSSH 1.2.1 and later [3]
# PubkeyAuthentication : OpenSSH 2.5.0 and later
# RekeyLimit : OpenSSH 3.7.0 and later
# RemoteForward : OpenSSH 1.2.1 and later [3]
# RhostsRSAAuthentication : OpenSSH 1.2.1 and later
# RSAAuthentication : OpenSSH 1.2.1 and later
# SendEnv : OpenSSH 3.9.0 and later
# ServerAliveCountMax : OpenSSH 3.8.0 and later
# ServerAliveInterval : OpenSSH 3.8.0 and later
# SmartcardDevice : OpenSSH 2.9.9 and later [1][3]
# StrictHostKeyChecking : OpenSSH 1.2.1 and later
# TCPKeepAlive : OpenSSH 3.8.0 and later
# Tunnel : OpenSSH 4.3.0 and later
# TunnelDevice : OpenSSH 4.3.0 and later [3]
# UsePAM : OpenSSH 3.7.0 and later [1][2][3]
# UsePrivilegedPort : OpenSSH 1.2.1 and later
# User : OpenSSH 1.2.1 and later
# UserKnownHostsFile : OpenSSH 1.2.1 and later
# VerifyHostKeyDNS : OpenSSH 3.8.0 and later
# XAuthLocation : OpenSSH 2.1.1 and later [3]
#
# [1] Option only available if activated at compile time
# [2] Option specific for portable versions
# [3] Option not used in our ssh client config file
#***************************************************************************
# Initialize ssh config with options actually supported in OpenSSH 2.9.9
#
logmsg 'generating ssh client config file...' if($verbose);
@cfgarr = ();
push @cfgarr, '# This is a generated file. Do not edit.';
push @cfgarr, "# $sshverstr ssh client configuration file for curl testing";
push @cfgarr, '#';
push @cfgarr, 'Host *';
push @cfgarr, '#';
push @cfgarr, "Port $port";
push @cfgarr, "HostName $listenaddr";
push @cfgarr, "User $username";
push @cfgarr, 'Protocol 2';
push @cfgarr, '#';
# BindAddress option is not supported by OpenSSH for Windows
if (!($sshdid =~ /OpenSSH-Windows/)) {
push @cfgarr, "BindAddress $listenaddr";
}
push @cfgarr, '#';
push @cfgarr, "IdentityFile $identity_config";
push @cfgarr, "UserKnownHostsFile $knownhosts_config";
push @cfgarr, '#';
push @cfgarr, 'BatchMode yes';
push @cfgarr, 'ChallengeResponseAuthentication no';
push @cfgarr, 'CheckHostIP no';
push @cfgarr, 'ClearAllForwardings no';
push @cfgarr, 'Compression no';
push @cfgarr, 'ConnectionAttempts 3';
push @cfgarr, 'ForwardAgent no';
push @cfgarr, 'ForwardX11 no';
push @cfgarr, 'GatewayPorts no';
push @cfgarr, 'GlobalKnownHostsFile /dev/null';
push @cfgarr, 'HostbasedAuthentication no';
push @cfgarr, 'KbdInteractiveAuthentication no';
push @cfgarr, "LogLevel $loglevel";
push @cfgarr, 'NumberOfPasswordPrompts 0';
push @cfgarr, 'PasswordAuthentication no';
push @cfgarr, 'PreferredAuthentications publickey';
push @cfgarr, 'PubkeyAuthentication yes';
# RSA authentication options are not supported by OpenSSH for Windows
if (!($sshdid =~ /OpenSSH-Windows/)) {
push @cfgarr, 'RhostsRSAAuthentication no';
push @cfgarr, 'RSAAuthentication no';
}
# Disabled StrictHostKeyChecking since it makes the tests fail on my
# OpenSSH_6.0p1 on Debian Linux / Daniel
push @cfgarr, 'StrictHostKeyChecking no';
push @cfgarr, 'UsePrivilegedPort no';
push @cfgarr, '#';
#***************************************************************************
# Options supported in ssh client newer than OpenSSH 2.9.9
#
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 370)) {
push @cfgarr, 'AddressFamily any';
}
if((($sshid =~ /OpenSSH/) && ($sshvernum >= 370)) ||
(($sshid =~ /SunSSH/) && ($sshvernum >= 120))) {
push @cfgarr, 'ConnectTimeout 30';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 390)) {
push @cfgarr, 'ControlMaster no';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 420)) {
push @cfgarr, 'ControlPath none';
}
if(($sshid =~ /SunSSH/) && ($sshvernum >= 120)) {
push @cfgarr, 'DisableBanner yes';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 360)) {
push @cfgarr, 'EnableSSHKeysign no';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 440)) {
push @cfgarr, 'ExitOnForwardFailure yes';
}
if((($sshid =~ /OpenSSH/) && ($sshvernum >= 380)) ||
(($sshid =~ /SunSSH/) && ($sshvernum >= 120))) {
push @cfgarr, 'ForwardX11Trusted no';
}
if(($sshd_builtwith_GSSAPI) && ($sshdid eq $sshid) &&
($sshdvernum == $sshvernum)) {
push @cfgarr, 'GSSAPIAuthentication no';
push @cfgarr, 'GSSAPIDelegateCredentials no';
if($sshid =~ /SunSSH/) {
push @cfgarr, 'GSSAPIKeyExchange no';
}
}
if((($sshid =~ /OpenSSH/) && ($sshvernum >= 400)) ||
(($sshid =~ /SunSSH/) && ($sshvernum >= 120))) {
push @cfgarr, 'HashKnownHosts no';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 390)) {
push @cfgarr, 'IdentitiesOnly yes';
}
if(($sshid =~ /SunSSH/) && ($sshvernum >= 120)) {
push @cfgarr, 'IgnoreIfUnknown no';
}
if((($sshid =~ /OpenSSH/) && ($sshvernum < 380)) ||
($sshid =~ /SunSSH/)) {
push @cfgarr, 'KeepAlive no';
}
if((($sshid =~ /OpenSSH/) && ($sshvernum >= 300)) ||
($sshid =~ /SunSSH/)) {
push @cfgarr, 'NoHostAuthenticationForLocalhost no';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 430)) {
push @cfgarr, 'PermitLocalCommand no';
}
if((($sshid =~ /OpenSSH/) && ($sshvernum >= 370)) ||
(($sshid =~ /SunSSH/) && ($sshvernum >= 120))) {
push @cfgarr, 'RekeyLimit 1G';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 390)) {
push @cfgarr, 'SendEnv';
}
if((($sshid =~ /OpenSSH/) && ($sshvernum >= 380)) ||
(($sshid =~ /SunSSH/) && ($sshvernum >= 120))) {
push @cfgarr, 'ServerAliveCountMax 3';
push @cfgarr, 'ServerAliveInterval 0';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 380)) {
push @cfgarr, 'TCPKeepAlive no';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 430)) {
push @cfgarr, 'Tunnel no';
}
if(($sshid =~ /OpenSSH/) && ($sshvernum >= 380)) {
push @cfgarr, 'VerifyHostKeyDNS no';
}
push @cfgarr, '#';
#***************************************************************************
# Write out resulting ssh client configuration file for curl's tests
#
$error = dump_array($sshconfig, @cfgarr);
if($error) {
logmsg $error;
exit 1;
}
#***************************************************************************
# Initialize client sftp config with options actually supported.
#
logmsg 'generating sftp client config file...' if($verbose);
splice @cfgarr, 1, 1, "# $sshverstr sftp client configuration file for curl testing";
#
for(my $i = scalar(@cfgarr) - 1; $i > 0; $i--) {
if($cfgarr[$i] =~ /^DynamicForward/) {
splice @cfgarr, $i, 1;
next;
}
if($cfgarr[$i] =~ /^ClearAllForwardings/) {
splice @cfgarr, $i, 1, "ClearAllForwardings yes";
next;
}
}
#***************************************************************************
# Write out resulting sftp client configuration file for curl's tests
#
$error = dump_array($sftpconfig, @cfgarr);
if($error) {
logmsg $error;
exit 1;
}
@cfgarr = ();
#***************************************************************************
# Generate client sftp commands batch file for sftp server verification
#
logmsg 'generating sftp client commands file...' if($verbose);
push @cfgarr, 'pwd';
push @cfgarr, 'quit';
$error = dump_array($sftpcmds, @cfgarr);
if($error) {
logmsg $error;
exit 1;
}
@cfgarr = ();
#***************************************************************************
# Prepare command line of ssh server daemon
#
my $cmd = "\"$sshd\" -e -D -f $sshdconfig > $sshdlog 2>&1";
logmsg "SCP/SFTP server listening on port $port" if($verbose);
logmsg "RUN: $cmd" if($verbose);
#***************************************************************************
# Start the ssh server daemon on Windows without forking it
#
if ($sshdid =~ /OpenSSH-Windows/) {
# Fake pidfile for ssh server on Windows.
if(open(OUT, ">$pidfile")) {
print OUT $$ . "\n";
close(OUT);
}
# Put an "exec" in front of the command so that the child process
# keeps this child's process ID by being tied to the spawned shell.
exec("exec $cmd") || die "Can't exec() $cmd: $!";
# exec() will create a new process, but ties the existance of the
# new process to the parent waiting perl.exe and sh.exe processes.
# exec() should never return back here to this process. We protect
# ourselves by calling die() just in case something goes really bad.
die "error: exec() has returned";
}
#***************************************************************************
# Start the ssh server daemon without forking it
#
my $rc = system($cmd);
if($rc == -1) {
logmsg "\"$sshd\" failed with: $!";
}
elsif($rc & 127) {
logmsg sprintf("\"$sshd\" died with signal %d, and %s coredump",
($rc & 127), ($rc & 128)?'a':'no');
}
elsif($verbose && ($rc >> 8)) {
logmsg sprintf("\"$sshd\" exited with %d", $rc >> 8);
}
#***************************************************************************
# Clean up once the server has stopped
#
unlink($hstprvkeyf, $hstpubkeyf, $hstpubmd5f,
$cliprvkeyf, $clipubkeyf, $knownhosts,
$sshdconfig, $sshconfig, $sftpconfig);
exit 0;