aptssh-setup.in 3.73 KB
Newer Older
1 2
#!/usr/bin/perl -wT
#
3
# Copyright (c) 2000-2014 University of Utah and the Flux Group.
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
# 
# {{{EMULAB-LICENSE
# 
# This file is part of the Emulab network testbed software.
# 
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# 
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public
# License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.
# 
# }}}
#
use English;
use Getopt::Std;

#
# Setup GateOne stuff for in browser SSH client.
#
sub usage()
{
    print "Usage: gateone-setup [-d] ...\n";
    print "Options:\n";
    print " -d      Turn on debugging\n";
    print " -r      Force a regenerate of initial key for user\n";
    exit(-1);
}
my $optlist   = "dr";
my $debug     = 0;
my $regen     = 0;

#
# Configure variables
#
my $TB		= "@prefix@";
my $TBOPS       = "@TBOPSEMAIL@";
my $OURDOMAIN   = "@OURDOMAIN@";
my $CONTROL	= "@USERNODE@";
my $PROTOGENI   = @PROTOGENI_SUPPORT@;
my $KEYGEN	= "/usr/bin/ssh-keygen";
my $APTDIR      = "/var/apt/users";
my $USERSAPTDIR = "$TB/usersvar/apt/users";
my $SSH		= "$TB/bin/sshtb";
my $SAVEUID	= $UID;

# Locals
my $user;

#
# Testbed Support libraries
#
use lib "@prefix@/lib";
use GeniDB;
use GeniUser;
65
use emutil;
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
# Connect to the SA DB.
GeniDB::DBConnect(GeniDB::GENISA_DBNAME());

#
# Function prototypes
#
sub fatal($);

#
# Turn off line buffering on output
#
$| = 1;

#
# Untaint the path
# 
$ENV{'PATH'} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin";
delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};

#
# We don't want to run this script unless its the real version.
#
if ($EUID != 0) {
    die("*** $0:\n".
	"    Must be setuid! Maybe its a development version?\n");
}

#
# Please do not run it as root. Hard to track what has happened.
# 
if ($UID == 0) {
    die("*** $0:\n".
	"    Please do not run this as root!\n");
}

#
# Parse command arguments. Once we return from getopts, all that should be
# left are the required arguments.
#
%options = ();
if (! getopts($optlist, \%options)) {
    usage();
}
if (defined($options{"d"})) {
    $debug = 1;
}
if (defined($options{"r"})) {
    $regen = 1;
}
usage()
    if (@ARGV != 1);

my $geniuser = GeniUser->Lookup($ARGV[0], 0);
if (!defined($geniuser)) {
    fatal("No such Geni user!");
}
my $uid  = $geniuser->uid();
my $dir  = "$APTDIR/$uid";
my $udir = "$USERSAPTDIR/$uid";

$UID = 0;
if (! -e "$udir") {
    system("$SSH -host $CONTROL '/bin/mkdir -p -m 0750 $dir'")
	== 0 or fatal("Could not mkdir $dir: $!");
}
system("$SSH -host $CONTROL ".
       "   'rm -f $dir/id_rsa; $KEYGEN -q -t rsa -P \"\" ".
       "   -C \"${uid}" . "\@" . ${OURDOMAIN} . "\" ".
       "   -f $dir/id_rsa'")
    == 0 or fatal("Failure in ssh-keygen!");
system("$SSH -host $CONTROL '/usr/sbin/chown -R nobody:nobody $dir'")
    == 0 or fatal("Could not mkdir $dir: $!");
system("$SSH -host $CONTROL '/bin/chmod -R 700 $dir'")
    == 0 or fatal("Could not mkdir $dir: $!");
# Grab a copy for the DB.
141
my $pubkey =
Leigh Stoller's avatar
Leigh Stoller committed
142
    emutil::ExecQuiet("$SSH -host $CONTROL '/bin/cat $dir/id_rsa.pub'");
143
if ($?) {
Leigh Stoller's avatar
Leigh Stoller committed
144
    fatal("Could not read new key from file: $pubkey");
145 146
}
chomp($pubkey);
147
$UID = $SAVEUID;
148 149 150 151 152 153 154 155 156 157 158 159 160 161 162

# Only one.
$geniuser->DeleteInternalKeys();

$geniuser->AddInternalKey($pubkey) == 0
    or fatal("Could not add new pub key to the database!");

exit(0);

sub fatal($) {
    my($mesg) = $_[0];

    die("*** $0:\n".
	"    $mesg\n");
}