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servers.pm
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <[email protected]>, 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.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.
#
# SPDX-License-Identifier: curl
#
###########################################################################
# This module contains functions that are useful for managing the lifecycle of
# test servers required when running tests. It is not intended for use within
# those servers, but rather for starting and stopping them.
package servers;
use IO::Socket;
use strict;
use warnings;
BEGIN {
use base qw(Exporter);
our @EXPORT = (
# variables
qw(
$SOCKSIN
$err_unexpected
$debugprotocol
$stunnel
),
# functions
qw(
initserverconfig
)
);
our @EXPORT_OK = (
# functions
qw(
checkcmd
clearlocks
serverfortest
stopserver
stopservers
subvariables
localhttp
),
# for debugging only
qw(
protoport
)
);
}
use serverhelp qw(
serverfactors
servername_id
servername_str
servername_canon
server_pidfilename
server_portfilename
server_logfilename
);
use sshhelp qw(
$hstpubmd5f
$hstpubsha256f
$sshexe
$sftpexe
$sftpconfig
$sshdlog
$sftplog
$sftpcmds
display_sshdconfig
display_sftpconfig
display_sshdlog
display_sftplog
find_sshd
find_ssh
find_sftp
find_httptlssrv
sshversioninfo
);
use pathhelp qw(
exe_ext
os_is_win
build_sys_abs_path
sys_native_abs_path
);
use processhelp;
use globalconfig;
use testutil qw(
logmsg
runclient
runclientoutput
);
my %serverpidfile; # all server pid file names, identified by server id
my %serverportfile;# all server port file names, identified by server id
my $sshdvernum; # for socks server, ssh daemon version number
my $sshdverstr; # for socks server, ssh daemon version string
my $sshderror; # for socks server, ssh daemon version error
my %doesntrun; # servers that don't work, identified by pidfile
my %PORT = (nolisten => 47); # port we use for a local non-listening service
my $server_response_maxtime=13;
my $httptlssrv = find_httptlssrv();
my %run; # running server
my %runcert; # cert file currently in use by an ssl running server
my $CLIENTIP="127.0.0.1"; # address which curl uses for incoming connections
my $CLIENT6IP="[::1]"; # address which curl uses for incoming connections
my $posix_pwd = build_sys_abs_path($pwd); # current working directory in POSIX format
my $h2cver = "h2c"; # this version is decided by the nghttp2 lib being used
my $portrange = 999; # space from which to choose a random port
# don't increase without making sure generated port
# numbers will always be valid (<=65535)
my $HOSTIP="127.0.0.1"; # address on which the test server listens
my $HOST6IP="[::1]"; # address on which the test server listens
my $HTTPUNIXPATH; # HTTP server Unix domain socket path
my $SOCKSUNIXPATH; # socks server Unix domain socket path
my $SSHSRVMD5 = "[uninitialized]"; # MD5 of ssh server public key
my $SSHSRVSHA256 = "[uninitialized]"; # SHA256 of ssh server public key
my $USER; # name of the current user
my $sshdid; # for socks server, ssh daemon version id
my $ftpchecktime=1; # time it took to verify our test FTP server
# Variables shared with runtests.pl
our $SOCKSIN="socksd-request.log"; # what curl sent to the SOCKS proxy
our $err_unexpected; # error instead of warning on server unexpectedly alive
our $debugprotocol; # nonzero for verbose server logs
our $stunnel; # path to stunnel command
#######################################################################
# Check for a command in the PATH of the test server.
#
sub checkcmd {
my ($cmd, @extrapaths)=@_;
my @paths;
if ($^O eq 'MSWin32' || $^O eq 'dos' || $^O eq 'os2') {
# PATH separator is different
@paths=(split(';', $ENV{'PATH'}), @extrapaths);
}
else {
@paths=(split(':', $ENV{'PATH'}), "/usr/sbin", "/usr/local/sbin",
"/sbin", "/usr/bin", "/usr/local/bin", @extrapaths);
}
for(@paths) {
if( -x "$_/$cmd" . exe_ext('SYS') && ! -d "$_/$cmd" . exe_ext('SYS')) {
# executable bit but not a directory!
return "$_/$cmd";
}
}
return "";
}
#######################################################################
# Create a server socket on a random (unused) port, then close it and
# return the port number
#
sub getfreeport {
my ($ipnum) = @_;
my $server = IO::Socket->new(LocalPort => 0,
Domain => $ipnum == 6 ? AF_INET6 : AF_INET,
Type => SOCK_STREAM,
Reuse => 1,
Listen => 10 )
or die "Couldn't create tcp server socket: $@\n";
return $server->sockport();
}
use File::Temp qw/ tempfile/;
#######################################################################
# Initialize configuration variables
sub initserverconfig {
my ($fh, $socks) = tempfile("curl-socksd-XXXXXXXX", TMPDIR => 1);
close($fh);
unlink($socks);
my ($f2, $http) = tempfile("curl-http-XXXXXXXX", TMPDIR => 1);
close($f2);
unlink($http);
$SOCKSUNIXPATH = $socks; # SOCKS Unix domain socket
$HTTPUNIXPATH = $http; # HTTP Unix domain socket
$stunnel = checkcmd("stunnel4") || checkcmd("tstunnel") || checkcmd("stunnel");
# get the name of the current user
$USER = $ENV{USER}; # Linux
if (!$USER) {
$USER = $ENV{USERNAME}; # Windows
if (!$USER) {
$USER = $ENV{LOGNAME}; # Some Unix (I think)
}
}
init_serverpidfile_hash();
}
#######################################################################
# Load serverpidfile and serverportfile hashes with file names for all
# possible servers.
#
sub init_serverpidfile_hash {
for my $proto (('ftp', 'gopher', 'http', 'imap', 'pop3', 'smtp', 'http/2', 'http/3')) {
for my $ssl (('', 's')) {
for my $ipvnum ((4, 6)) {
for my $idnum ((1, 2, 3)) {
my $serv = servername_id("$proto$ssl", $ipvnum, $idnum);
my $pidf = server_pidfilename("$LOGDIR/$PIDDIR", "$proto$ssl",
$ipvnum, $idnum);
$serverpidfile{$serv} = $pidf;
my $portf = server_portfilename("$LOGDIR/$PIDDIR", "$proto$ssl",
$ipvnum, $idnum);
$serverportfile{$serv} = $portf;
}
}
}
}
for my $proto (('tftp', 'sftp', 'socks', 'ssh', 'rtsp', 'httptls',
'dict', 'smb', 'smbs', 'telnet', 'mqtt')) {
for my $ipvnum ((4, 6)) {
for my $idnum ((1, 2)) {
my $serv = servername_id($proto, $ipvnum, $idnum);
my $pidf = server_pidfilename("$LOGDIR/$PIDDIR", $proto, $ipvnum,
$idnum);
$serverpidfile{$serv} = $pidf;
my $portf = server_portfilename("$LOGDIR/$PIDDIR", $proto, $ipvnum,
$idnum);
$serverportfile{$serv} = $portf;
}
}
}
for my $proto (('http', 'imap', 'pop3', 'smtp', 'http/2', 'http/3')) {
for my $ssl (('', 's')) {
my $serv = servername_id("$proto$ssl", "unix", 1);
my $pidf = server_pidfilename("$LOGDIR/$PIDDIR", "$proto$ssl",
"unix", 1);
$serverpidfile{$serv} = $pidf;
my $portf = server_portfilename("$LOGDIR/$PIDDIR", "$proto$ssl",
"unix", 1);
$serverportfile{$serv} = $portf;
}
}
}
#######################################################################
# Kill the processes that still have lock files in a directory
#
sub clearlocks {
my $dir = $_[0];
my $done = 0;
if(os_is_win()) {
$dir = sys_native_abs_path($dir);
# Must use backslashes for handle64 to find a match
if ($^O eq 'MSWin32') {
$dir =~ s/\//\\/g;
}
else {
$dir =~ s/\//\\\\/g;
}
my $handle = "handle";
if($ENV{"PROCESSOR_ARCHITECTURE"} =~ /64$/) {
$handle = "handle64";
}
if(checkcmd($handle)) {
# https://learn.microsoft.com/sysinternals/downloads/handle#usage
my $cmd = "$handle $dir -accepteula -nobanner";
logmsg "clearlocks: Executing query: '$cmd'\n";
my @handles = `$cmd`;
for my $tryhandle (@handles) {
# Skip the "No matching handles found." warning when returned
if($tryhandle =~ /^(\S+)\s+pid:\s+(\d+)\s+type:\s+(\w+)\s+([0-9A-F]+):\s+(.+)\r\r/) {
logmsg "clearlocks: Found $3 lock of '$5' ($4) by $1 ($2)\n";
# Ignore stunnel since we cannot do anything about its locks
if("$3" eq "File" && "$1" ne "tstunnel.exe") {
logmsg "clearlocks: Killing IMAGENAME eq $1 and PID eq $2\n";
# https://ss64.com/nt/taskkill.html
my $cmd = "taskkill.exe -f -t -fi \"IMAGENAME eq $1\" -fi \"PID eq $2\" >nul 2>&1";
logmsg "clearlocks: Executing kill: '$cmd'\n";
system($cmd);
$done = 1;
}
}
}
}
else {
logmsg "Warning: 'handle' tool not found.\n";
}
}
return $done;
}
#######################################################################
# Check if a given child process has just died. Reaps it if so.
#
sub checkdied {
my $pid = $_[0];
if((not defined $pid) || $pid <= 0) {
return 0;
}
use POSIX ":sys_wait_h";
my $rc = pidwait($pid, &WNOHANG);
return ($rc == $pid)?1:0;
}
##############################################################################
# This function makes sure the right set of server is running for the
# specified test case. This is a useful design when we run single tests as not
# all servers need to run then!
#
# Returns: a string, blank if everything is fine or a reason why it failed, and
# an integer:
# 0 for success
# 1 for an error starting the server
# 2 for not the first time getting an error starting the server
# 3 for a failure to stop a server in order to restart it
# 4 for an unsupported server type
#
sub serverfortest {
my (@what)=@_;
for(my $i = scalar(@what) - 1; $i >= 0; $i--) {
my $srvrline = $what[$i];
chomp $srvrline if($srvrline);
if($srvrline =~ /^(\S+)((\s*)(.*))/) {
my $server = "${1}";
my $lnrest = "${2}";
my $tlsext;
if($server =~ /^(httptls)(\+)(ext|srp)(\d*)(-ipv6|)$/) {
$server = "${1}${4}${5}";
$tlsext = uc("TLS-${3}");
}
if(! grep /^\Q$server\E$/, @protocols) {
if(substr($server,0,5) ne "socks") {
if($tlsext) {
return ("curl lacks $tlsext support", 4);
}
else {
return ("curl lacks $server server support", 4);
}
}
}
$what[$i] = "$server$lnrest" if($tlsext);
}
}
return &startservers(@what);
}
#######################################################################
# Start a new thread/process and run the given command line in there.
# Return the pids (yes plural) of the new child process to the parent.
#
sub startnew {
my ($cmd, $pidfile, $timeout, $fakepidfile)=@_;
logmsg "startnew: $cmd\n" if ($verbose);
my $child = fork();
if(not defined $child) {
logmsg "startnew: fork() failure detected\n";
return (-1,-1);
}
if(0 == $child) {
# Here we are the child. Run the given command.
# Flush output.
$| = 1;
# Put an "exec" in front of the command so that the child process
# keeps this child's process ID.
exec("exec $cmd") || die "Can't exec() $cmd: $!";
# exec() should never return back here to this process. We protect
# ourselves by calling die() just in case something goes really bad.
die "error: exec() has returned";
}
# Ugly hack but ssh client and gnutls-serv don't support pid files
if ($fakepidfile) {
if(open(my $out, ">", "$pidfile")) {
print $out $child . "\n";
close($out) || die "Failure writing pidfile";
logmsg "startnew: $pidfile faked with pid=$child\n" if($verbose);
}
else {
logmsg "startnew: failed to write fake $pidfile with pid=$child\n";
}
# could/should do a while connect fails sleep a bit and loop
portable_sleep($timeout);
if (checkdied($child)) {
logmsg "startnew: child process has failed to start\n" if($verbose);
return (-1,-1);
}
}
my $pid2 = 0;
my $count = $timeout;
while($count--) {
$pid2 = pidfromfile($pidfile);
if(($pid2 > 0) && pidexists($pid2)) {
# if $pid2 is valid, then make sure this pid is alive, as
# otherwise it is just likely to be the _previous_ pidfile or
# similar!
last;
}
if (checkdied($child)) {
logmsg "startnew: child process has died, server might start up\n"
if($verbose);
# We can't just abort waiting for the server with a
# return (-1,-1);
# because the server might have forked and could still start
# up normally. Instead, just reduce the amount of time we remain
# waiting.
$count >>= 2;
}
sleep(1);
}
# Return two PIDs, the one for the child process we spawned and the one
# reported by the server itself (in case it forked again on its own).
# Both (potentially) need to be killed at the end of the test.
return ($child, $pid2);
}
#######################################################################
# Return the port to use for the given protocol.
#
sub protoport {
my ($proto) = @_;
return $PORT{$proto} || "[not running]";
}
#######################################################################
# Stop a test server along with pids which aren't in the %run hash yet.
# This also stops all servers which are relative to the given one.
#
sub stopserver {
my ($server, $pidlist) = @_;
my $ipvnum = 4;
#
# kill sockfilter processes for pingpong relative server
#
if($server =~ /^(ftp|imap|pop3|smtp)s?(\d*)(-ipv6|)$/) {
my $proto = $1;
my $idnum = ($2 && ($2 > 1)) ? $2 : 1;
$ipvnum = ($3 && ($3 =~ /6$/)) ? 6 : 4;
killsockfilters("$LOGDIR/$PIDDIR", $proto, $ipvnum, $idnum, $verbose);
}
#
# All servers relative to the given one must be stopped also
#
my @killservers;
if($server =~ /^(ftp|http|imap|pop3|smtp)s((\d*)(-ipv6|-unix|))$/) {
# given a stunnel based ssl server, also kill non-ssl underlying one
push @killservers, "${1}${2}";
}
elsif($server =~ /^(ftp|http|imap|pop3|smtp)((\d*)(-ipv6|-unix|))$/) {
# given a non-ssl server, also kill stunnel based ssl piggybacking one
push @killservers, "${1}s${2}";
}
elsif($server =~ /^(socks)((\d*)(-ipv6|))$/) {
# given a socks server, also kill ssh underlying one
push @killservers, "ssh${2}";
}
elsif($server =~ /^(ssh)((\d*)(-ipv6|))$/) {
# given a ssh server, also kill socks piggybacking one
push @killservers, "socks${2}";
}
if($server eq "http" or $server eq "https") {
# since the http2+3 server is a proxy that needs to know about the
# dynamic http port it too needs to get restarted when the http server
# is killed
push @killservers, "http/2";
push @killservers, "http/3";
}
push @killservers, $server;
#
# kill given pids and server relative ones clearing them in %run hash
#
foreach my $server (@killservers) {
if($run{$server}) {
# we must prepend a space since $pidlist may already contain a pid
$pidlist .= " $run{$server}";
$run{$server} = 0;
}
$runcert{$server} = 0 if($runcert{$server});
}
killpid($verbose, $pidlist);
#
# cleanup server pid files
#
my $result = 0;
foreach my $server (@killservers) {
my $pidfile = $serverpidfile{$server};
unlink($pidfile) if(-f $pidfile);
}
#
# cleanup server lock files
#
foreach my $server (@killservers) {
# servers seem to produce (some of) these lock files
my @lockfiles = (
"$LOGDIR/$LOCKDIR/$server.lock",
"$LOGDIR/$LOCKDIR/$server-IPv$ipvnum.lock",
"$LOGDIR/$LOCKDIR/sws-".uc($server)."-IPv$ipvnum.lock"
);
foreach my $lockfile (@lockfiles) {
if(-f $lockfile) {
unlink($lockfile);
logmsg "RUN: kill $server, cleaned up $lockfile\n" if ($verbose);
}
}
}
return $result;
}
#######################################################################
# Return flags to let curl use an external HTTP proxy
#
sub getexternalproxyflags {
return " --proxy $proxy_address ";
}
#######################################################################
# Verify that the server that runs on $ip, $port is our server. This also
# implies that we can speak with it, as there might be occasions when the
# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
# assign requested address")
#
sub verifyhttp {
my ($proto, $ipvnum, $idnum, $ip, $port_or_path, $do_http3) = @_;
my $server = servername_id($proto, $ipvnum, $idnum);
my $bonus="";
# $port_or_path contains a path for Unix sockets, sws ignores the port
my $port = ($ipvnum eq "unix") ? 80 : $port_or_path;
my $infix = ($do_http3) ? "_h3" : "";
my $verifyout = "$LOGDIR/".
servername_canon($proto, $ipvnum, $idnum) .$infix .'_verify.out';
unlink($verifyout) if(-f $verifyout);
my $verifylog = "$LOGDIR/".
servername_canon($proto, $ipvnum, $idnum) .$infix .'_verify.log';
unlink($verifylog) if(-f $verifylog);
if($proto eq "gopher") {
# gopher is funny
$bonus="1/";
}
my $flags = "--max-time $server_response_maxtime ";
$flags .= "--output $verifyout ";
$flags .= "--silent ";
$flags .= "--verbose ";
$flags .= "--globoff ";
$flags .= "--unix-socket '$port_or_path' " if $ipvnum eq "unix";
$flags .= "--insecure " if($proto eq 'https');
if($proxy_address) {
$flags .= getexternalproxyflags();
}
$flags .= "--http3-only " if($do_http3);
$flags .= "\"$proto://$ip:$port/${bonus}verifiedserver\"";
my $cmd = "$VCURL $flags 2>$verifylog";
# verify if our/any server is running on this port
logmsg "RUN: $cmd\n" if($verbose);
my $res = runclient($cmd);
$res >>= 8; # rotate the result
if($res & 128) {
logmsg "RUN: curl command died with a coredump\n";
return -1;
}
if($res && $verbose) {
logmsg "RUN: curl command returned $res\n";
if(open(my $file, "<", "$verifylog")) {
while(my $string = <$file>) {
logmsg "RUN: $string" if($string !~ /^([ \t]*)$/);
}
close($file);
}
}
my $data;
if(open(my $file, "<", "$verifyout")) {
while(my $string = <$file>) {
$data = $string;
last; # only want first line
}
close($file);
}
my $pid = 0;
if($data && ($data =~ /WE ROOLZ: (\d+)/)) {
$pid = 0+$1;
}
elsif($res == 6) {
# curl: (6) Couldn't resolve host '::1'
logmsg "RUN: failed to resolve host ($proto://$ip:$port/verifiedserver)\n";
return -1;
}
elsif($data || ($res && ($res != 7))) {
logmsg "RUN: Unknown server on our $server port: $port ($res)\n";
return -1;
}
return $pid;
}
#######################################################################
# Verify that the server that runs on $ip, $port is our server. This also
# implies that we can speak with it, as there might be occasions when the
# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
# assign requested address")
#
sub verifyftp {
my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
my $server = servername_id($proto, $ipvnum, $idnum);
my $time=time();
my $extra="";
my $verifylog = "$LOGDIR/".
servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
unlink($verifylog) if(-f $verifylog);
if($proto eq "ftps") {
$extra .= "--insecure --ftp-ssl-control ";
}
my $flags = "--max-time $server_response_maxtime ";
$flags .= "--silent ";
$flags .= "--verbose ";
$flags .= "--globoff ";
$flags .= $extra;
if($proxy_address) {
$flags .= getexternalproxyflags();
}
$flags .= "\"$proto://$ip:$port/verifiedserver\"";
my $cmd = "$VCURL $flags 2>$verifylog";
# check if this is our server running on this port:
logmsg "RUN: $cmd\n" if($verbose);
my @data = runclientoutput($cmd);
my $res = $? >> 8; # rotate the result
if($res & 128) {
logmsg "RUN: curl command died with a coredump\n";
return -1;
}
my $pid = 0;
foreach my $line (@data) {
if($line =~ /WE ROOLZ: (\d+)/) {
# this is our test server with a known pid!
$pid = 0+$1;
last;
}
}
if($pid <= 0 && @data && $data[0]) {
# this is not a known server
logmsg "RUN: Unknown server on our $server port: $port\n";
return 0;
}
# we can/should use the time it took to verify the FTP server as a measure
# on how fast/slow this host/FTP is.
my $took = int(0.5+time()-$time);
if($verbose) {
logmsg "RUN: Verifying our test $server server took $took seconds\n";
}
$ftpchecktime = $took>=1?$took:1; # make sure it never is below 1
return $pid;
}
#######################################################################
# Verify that the server that runs on $ip, $port is our server. This also
# implies that we can speak with it, as there might be occasions when the
# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
# assign requested address")
#
sub verifyrtsp {
my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
my $server = servername_id($proto, $ipvnum, $idnum);
my $verifyout = "$LOGDIR/".
servername_canon($proto, $ipvnum, $idnum) .'_verify.out';
unlink($verifyout) if(-f $verifyout);
my $verifylog = "$LOGDIR/".
servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
unlink($verifylog) if(-f $verifylog);
my $flags = "--max-time $server_response_maxtime ";
$flags .= "--output $verifyout ";
$flags .= "--silent ";
$flags .= "--verbose ";
$flags .= "--globoff ";
if($proxy_address) {
$flags .= getexternalproxyflags();
}
# currently verification is done using http
$flags .= "\"http://$ip:$port/verifiedserver\"";
my $cmd = "$VCURL $flags 2>$verifylog";
# verify if our/any server is running on this port
logmsg "RUN: $cmd\n" if($verbose);
my $res = runclient($cmd);
$res >>= 8; # rotate the result
if($res & 128) {
logmsg "RUN: curl command died with a coredump\n";
return -1;
}
if($res && $verbose) {
logmsg "RUN: curl command returned $res\n";
if(open(my $file, "<", "$verifylog")) {
while(my $string = <$file>) {
logmsg "RUN: $string" if($string !~ /^[ \t]*$/);
}
close($file);
}
}
my $data;
if(open(my $file, "<", "$verifyout")) {
while(my $string = <$file>) {
$data = $string;
last; # only want first line
}
close($file);
}
my $pid = 0;
if($data && ($data =~ /RTSP_SERVER WE ROOLZ: (\d+)/)) {
$pid = 0+$1;
}
elsif($res == 6) {
# curl: (6) Couldn't resolve host '::1'
logmsg "RUN: failed to resolve host ($proto://$ip:$port/verifiedserver)\n";
return -1;
}
elsif($data || ($res != 7)) {
logmsg "RUN: Unknown server on our $server port: $port\n";
return -1;
}
return $pid;
}
#######################################################################
# Verify that the ssh server has written out its pidfile, recovering
# the pid from the file and returning it if a process with that pid is
# actually alive, or a negative value if the process is dead.
#
sub verifyssh {
my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
my $pidfile = server_pidfilename("$LOGDIR/$PIDDIR", $proto, $ipvnum,
$idnum);
my $pid = processexists($pidfile);
if($pid < 0) {
logmsg "RUN: SSH server has died after starting up\n";
}
return $pid;
}
#######################################################################
# Verify that we can connect to the sftp server, properly authenticate
# with generated config and key files and run a simple remote pwd.
#
sub verifysftp {
my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
my $server = servername_id($proto, $ipvnum, $idnum);
my $verified = 0;
# Find out sftp client canonical file name
my $sftp = find_sftp();
if(!$sftp) {
logmsg "RUN: SFTP server cannot find $sftpexe\n";
return -1;
}
# Find out ssh client canonical file name
my $ssh = find_ssh();
if(!$ssh) {
logmsg "RUN: SFTP server cannot find $sshexe\n";
return -1;
}
# Connect to sftp server, authenticate and run a remote pwd
# command using our generated configuration and key files
my $cmd = "\"$sftp\" -b $LOGDIR/$PIDDIR/$sftpcmds -F $LOGDIR/$PIDDIR/$sftpconfig -S \"$ssh\" $ip > $sftplog 2>&1";
my $res = runclient($cmd);
# Search for pwd command response in log file
if(open(my $sftplogfile, "<", "$sftplog")) {
while(<$sftplogfile>) {
if(/^Remote working directory: /) {
$verified = 1;
last;
}
}
close($sftplogfile);
}
return $verified;
}
#######################################################################
# Verify that the non-stunnel HTTP TLS extensions capable server that runs
# on $ip, $port is our server. This also implies that we can speak with it,
# as there might be occasions when the server runs fine but we cannot talk
# to it ("Failed to connect to ::1: Can't assign requested address")
#
sub verifyhttptls {
my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
my $server = servername_id($proto, $ipvnum, $idnum);
my $pidfile = server_pidfilename("$LOGDIR/$PIDDIR", $proto, $ipvnum,
$idnum);
my $verifyout = "$LOGDIR/".
servername_canon($proto, $ipvnum, $idnum) .'_verify.out';
unlink($verifyout) if(-f $verifyout);
my $verifylog = "$LOGDIR/".
servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
unlink($verifylog) if(-f $verifylog);
my $flags = "--max-time $server_response_maxtime ";
$flags .= "--output $verifyout ";
$flags .= "--verbose ";
$flags .= "--globoff ";
$flags .= "--insecure ";
$flags .= "--tlsauthtype SRP ";
$flags .= "--tlsuser jsmith ";
$flags .= "--tlspassword abc ";
if($proxy_address) {
$flags .= getexternalproxyflags();
}
$flags .= "\"https://$ip:$port/verifiedserver\"";
my $cmd = "$VCURL $flags 2>$verifylog";
# verify if our/any server is running on this port
logmsg "RUN: $cmd\n" if($verbose);
my $res = runclient($cmd);
$res >>= 8; # rotate the result
if($res & 128) {
logmsg "RUN: curl command died with a coredump\n";
return -1;
}
if($res && $verbose) {
logmsg "RUN: curl command returned $res\n";
if(open(my $file, "<", "$verifylog")) {
while(my $string = <$file>) {
logmsg "RUN: $string" if($string !~ /^([ \t]*)$/);
}
close($file);
}
}
my $data;
if(open(my $file, "<", "$verifyout")) {
while(my $string = <$file>) {
$data .= $string;
}
close($file);
}
my $pid = 0;
if($data && ($data =~ /(GNUTLS|GnuTLS)/) && ($pid = processexists($pidfile))) {
if($pid < 0) {
logmsg "RUN: $server server has died after starting up\n";
}
return $pid;
}
elsif($res == 6) {
# curl: (6) Couldn't resolve host '::1'
logmsg "RUN: failed to resolve host (https://$ip:$port/verifiedserver)\n";
return -1;
}
elsif($data || ($res && ($res != 7))) {
logmsg "RUN: Unknown server on our $server port: $port ($res)\n";
return -1;
}
return $pid;
}
#######################################################################
# STUB for verifying mqtt
#
sub verifymqtt {
my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
my $pidfile = server_pidfilename("$LOGDIR/$PIDDIR", $proto, $ipvnum,
$idnum);
my $pid = processexists($pidfile);
if($pid < 0) {
logmsg "RUN: MQTT server has died after starting up\n";
}
return $pid;
}
#######################################################################
# STUB for verifying socks
#
sub verifysocks {
my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
my $pidfile = server_pidfilename("$LOGDIR/$PIDDIR", $proto, $ipvnum,
$idnum);
my $pid = processexists($pidfile);
if($pid < 0) {
logmsg "RUN: SOCKS server has died after starting up\n";
}
return $pid;
}
#######################################################################
# Verify that the server that runs on $ip, $port is our server. This also
# implies that we can speak with it, as there might be occasions when the
# server runs fine but we cannot talk to it ("Failed to connect to ::1: Can't
# assign requested address")
#
sub verifysmb {
my ($proto, $ipvnum, $idnum, $ip, $port) = @_;
my $server = servername_id($proto, $ipvnum, $idnum);
my $time=time();
my $extra="";
my $verifylog = "$LOGDIR/".
servername_canon($proto, $ipvnum, $idnum) .'_verify.log';
unlink($verifylog) if(-f $verifylog);
my $flags = "--max-time $server_response_maxtime ";
$flags .= "--silent ";
$flags .= "--verbose ";
$flags .= "--globoff ";
$flags .= "-u 'curltest:curltest' ";
$flags .= $extra;
$flags .= "\"$proto://$ip:$port/SERVER/verifiedserver\"";
my $cmd = "$VCURL $flags 2>$verifylog";
# check if this is our server running on this port:
logmsg "RUN: $cmd\n" if($verbose);
my @data = runclientoutput($cmd);
my $res = $? >> 8; # rotate the result
if($res & 128) {
logmsg "RUN: curl command died with a coredump\n";
return -1;
}
my $pid = 0;
foreach my $line (@data) {
if($line =~ /WE ROOLZ: (\d+)/) {
# this is our test server with a known pid!
$pid = 0+$1;
last;
}
}
if($pid <= 0 && @data && $data[0]) {
# this is not a known server
logmsg "RUN: Unknown server on our $server port: $port\n";
return 0;
}
# we can/should use the time it took to verify the server as a measure
# on how fast/slow this host is.
my $took = int(0.5+time()-$time);