This file is indexed.

/usr/sbin/fence_legacy is in pacemaker 1.1.16-1.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
#!/usr/bin/perl

use Getopt::Long;

my $ME = $0;

END {
  defined fileno STDOUT or return;
  close STDOUT and return;
  warn "$ME: failed to close standard output: $!\n";
  $? ||= 1;
}

# Get the program name from $0 and strip directory names
$_=$0;
s/.*\///;
my $pname = $_;

$opt_o = 'reset';       # Default fence action
$opt_s = 'stonith';     # Default fence binary
$opt_t = 'none';        # Default fence type
$extra_args = '-E';

sub usage
{
    print "Helper that presents a RHCS-style interface for Linux-HA stonith plugins\n\n";
    print "Should never need to use invoked by the user directly\n\n";
    print "\n";
    print "Usage: $pname [options]\n";
    print "\n";
    print "Options:\n";
    print "  -h               usage\n";
    print "  -t <sub agent>   sub agent\n";
    print "  -n <name>        nodename\n";
    print "  -o <string>      Action:  on | off | reset (default) | stat | hostlist\n";
    print "  -s <stonith>     stonith command\n";
    print "  -q               quiet mode\n";
    print "  -V               version\n";

    exit 0;
}

sub print_metadata
{
print '<?xml version="1.0" ?>
<resource-agent name="fence_pcmk" shortdesc="Helper that presents a RHCS-style interface for Linux-HA stonith plugins" >
<longdesc>
Should never need to use invoked by the user directly and should only
be configured in cluster.conf, not directly in Pacemaker.
</longdesc>
<vendor-url>http://www.clusterlabs.org</vendor-url>
<parameters>
        <parameter name="action" unique="1" required="1">
                <getopt mixed="-o &lt;action&gt;" />
                <content type="string" default="disable" />
                <shortdesc lang="en">Fencing Action</shortdesc>
        </parameter>
        <parameter name="port" unique="1" required="1">
                <getopt mixed="-n &lt;id&gt;" />
                <content type="string"  />
                <shortdesc lang="en">Physical plug number or name of virtual machine</shortdesc>
        </parameter>
        <parameter name="help" unique="1" required="0">
                <getopt mixed="-h" />
                <content type="string"  />
                <shortdesc lang="en">Display help and exit</shortdesc>
        </parameter>
</parameters>
<actions>
        <action name="enable" />
        <action name="disable" />
        <action name="reboot" />
        <action name="off" />
        <action name="on" />
        <action name="status" />
        <action name="list" />
        <action name="metadata" />
</actions>
</resource-agent>
';
}

sub fail
{
  ($msg) = @_;
  print $msg."\n" unless defined $opt_q;
  $t->close if defined $t;
  exit 1;
}

sub fail_usage
{
  ($msg)=@_;
  print STDERR $msg."\n" if $msg;
  print STDERR "Please use '-h' for usage.\n";
  exit 1;
}

sub version
{
  print "1.0.0\n";

  exit 0;
}

sub get_options_stdin
{
    my $opt;
    my $line = 0;
    while( defined($in = <>) )
    {
        $_ = $in;
        chomp;

	# strip leading and trailing whitespace
        s/^\s*//;
        s/\s*$//;

	# skip comments
        next if /^#/;

        $line+=1;
        $opt=$_;
        next unless $opt;

        ($name,$val)=split /\s*=\s*/, $opt, 2;

        if ( $name eq "" )
        {  
           print STDERR "parse error: illegal name in option $line\n";
           exit 2;
	}
	
        # DO NOTHING -- this field is used by fenced
	elsif ($name eq "agent" ) {} 

	elsif ($name eq "plugin" ) 
	{ 
	    $opt_t = $val;
	} 
        elsif ($name eq "option" || $name eq "action" )
        {
            $opt_o = $val;
        }
	elsif ($name eq "nodename" ) 
	{
            $opt_n = $val;
	    $ENV{$name} = $val;
        } 
	elsif ($name eq "stonith" ) 
	{
            $opt_s = $val;
        }
	else 
	{
	    $ENV{$name} = $val;
	}

    }
}

######################################################################33
# MAIN

if (@ARGV > 0) {
    GetOptions("t=s"=>\$opt_t,
	       "n=s"=>\$opt_n,
	       "o=s"=>\$opt_o,
	       "s=s"=>\$opt_s,
	       "q"  =>\$opt_q,
	       "V"  =>\$opt_V,
	       "version"  =>\$opt_V,
	       "help"  =>\$opt_h,
	       "h"  =>\$opt_h) || fail_usage;
    foreach (@ARGV) {
	print "$_\n";
    }
#   getopts("ht:n:o:s:qV") || fail_usage ;
    
   usage if defined $opt_h;
   version if defined $opt_V;

   fail_usage "Unknown parameter." if (@ARGV > 0);
}

get_options_stdin();

if ((defined $opt_o) && ($opt_o =~ /metadata/i)) {
    print_metadata();
    exit 0;
}

$opt_o=lc($opt_o);
fail "failed: unrecognised action: $opt_o"
    unless $opt_o =~ /^(on|off|reset|reboot|stat|status|monitor|list|hostlist|poweroff|poweron)$/;

if ( $opt_o eq "hostlist"|| $opt_o eq "list" ) {
    $opt_q = "1";
}

if ( $pid=fork() == 0 )
{
   if ( $opt_o eq "reboot" ) 
   {
       $opt_o="reset";
   } 
   elsif ( $opt_o eq "poweron" ) 
   {
       $opt_o="on";
   }
   elsif ( $opt_o eq "poweroff" ) 
   {
       $opt_o="off";
   }

   if ( $opt_o eq "hostlist"|| $opt_o eq "list" )
   {
       exec "$opt_s -t $opt_t $extra_args -l" or die "failed to exec \"$opt_s\"\n";
   }
   elsif ( $opt_o eq "monitor" || $opt_o eq "stat" || $opt_o eq "status" ) 
   {
       print "Performing: $opt_s -t $opt_t -S\n" unless defined $opt_q;
       exec "$opt_s -t $opt_t $extra_args -S" or die "failed to exec \"$opt_s\"\n";
   }
   else
   {
       print "Performing: $opt_s -t $opt_t -T $opt_o $opt_n\n" unless defined $opt_q;
       fail "failed: no plug number" unless defined $opt_n;
       exec "$opt_s -t $opt_t $extra_args -T $opt_o $opt_n" or die "failed to exec \"$opt_s\"\n";
   }
}

wait;
$status=$?/256;

print (($status == 0 ? "success":"failed") . ": $opt_n $status\n")
   unless defined $opt_q;

exit ($status == 0 ? 0 : 1 );