#!/usr/bin/perl -w use strict; use Socket; use Getopt::Long; my $opt_hostname = `hostname`; chomp $opt_hostname; my $opt_hostip; my $opt_realm; my $opt_domain; my $opt_adminpass; my $opt_nobody; my $opt_nogroup; my $opt_wheel; my $opt_users; my $dnsdomain; my $netbiosname; my $dnsname; my $basedn; my $defaultsite = "Default-First-Site-Name"; my $usn = 1; # return the current NTTIME as an integer sub nttime() { my $t = time(); $t += (369.0*365.25*24*60*60-(3.0*24*60*60+6.0*60*60)); $t *= 1.0e7; return sprintf("%lld", $t); } # generate a random guid. Not a good algorithm. sub randguid() { my $r1 = int(rand(2**32)); my $r2 = int(rand(2**16)); my $r3 = int(rand(2**16)); my $r4 = int(rand(2**16)); my $r5 = int(rand(2**32)); my $r6 = int(rand(2**16)); return sprintf("%08x-%04x-%04x-%04x-%08x%04x", $r1, $r2, $r3, $r4, $r5, $r6); } my $opt_domainguid = randguid(); my $opt_hostguid = randguid(); my $opt_invocationid = randguid(); sub randsid() { return sprintf("S-1-5-21-%d-%d-%d", int(rand(10**8)), int(rand(10**8)), int(rand(10**8))); } my $opt_domainsid = randsid(); # generate a random password. Poor algorithm :( sub randpass() { my $pass = ""; my $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ%\$!~"; for (my $i=0;$i<8;$i++) { my $c = int(rand(length($chars))); $pass .= substr($chars, $c, 1); } return $pass; } my $joinpass = randpass(); sub ldaptime() { my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday) = gmtime(time); return sprintf "%04u%02u%02u%02u%02u%02u.0Z", $year+1900, $mon+1, $mday, $hour, $min, $sec; } ####################### # substitute a single variable sub substitute($) { my $var = shift; if ($var eq "BASEDN") { return $basedn; } if ($var eq "DOMAINSID") { return $opt_domainsid; } if ($var eq "DOMAIN") { return $opt_domain; } if ($var eq "REALM") { return $opt_realm; } if ($var eq "DNSDOMAIN") { return $dnsdomain; } if ($var eq "HOSTNAME") { return $opt_hostname; } if ($var eq "NETBIOSNAME") { return $netbiosname; } if ($var eq "DNSNAME") { return $dnsname; } if ($var eq "HOSTIP") { return $opt_hostip; } if ($var eq "LDAPTIME") { return ldaptime(); } if ($var eq "NEWGUID") { return randguid(); } if ($var eq "NEWSCHEMAGUID") { return randguid(); } if ($var eq "DOMAINGUID") { return $opt_domainguid; } if ($var eq "HOSTGUID") { return $opt_hostguid; } if ($var eq "INVOCATIONID") { return $opt_invocationid; } if ($var eq "DEFAULTSITE") { return $defaultsite; } if ($var eq "ADMINPASS") { return $opt_adminpass; } if ($var eq "RANDPASS") { return randpass(); } if ($var eq "JOINPASS") { return $joinpass; } if ($var eq "NTTIME") { return "" . nttime(); } if ($var eq "WHEEL") { return $opt_wheel; } if ($var eq "NOBODY") { return $opt_nobody; } if ($var eq "NOGROUP") { return $opt_nogroup; } if ($var eq "USERS") { return $opt_users; } if ($var eq "USN") { my $ret = $usn; $usn = $ret + 1; return $ret; } die "ERROR: Uknown substitution variable $var\n"; } #################################################################### # substitute all variables in a string sub apply_substitutions($) { my $data = shift; my $res = ""; while ($data =~ /(.*?)\$\{(\w*)\}(.*)/s) { my $sub = substitute($2); $res .= "$1$sub"; $data = $3; } $res .= $data; return $res; } ##################################################################### # write a string into a file sub FileSave($$) { my($filename) = shift; my($v) = shift; local(*FILE); open(FILE, ">$filename") || die "can't open $filename"; print FILE $v; close(FILE); } ##################################################################### # read a file into a string sub FileLoad($) { my($filename) = shift; local(*INPUTFILE); open(INPUTFILE, $filename) || return undef; my($saved_delim) = $/; undef $/; my($data) = ; close(INPUTFILE); $/ = $saved_delim; return $data; } ####################################################################### # add a foreign security principle sub add_foreign($$$) { my $sid = shift; my $desc = shift; my $unixname = shift; return " dn: CN=$sid,CN=ForeignSecurityPrincipals,\${BASEDN} objectClass: top objectClass: foreignSecurityPrincipal cn: $sid description: $desc instanceType: 4 whenCreated: \${LDAPTIME} whenChanged: \${LDAPTIME} uSNCreated: 1 uSNChanged: 1 showInAdvancedViewOnly: TRUE name: $sid objectGUID: \${NEWGUID} objectSid: $sid objectCategory: CN=Foreign-Security-Principal,CN=Schema,CN=Configuration,\${BASEDN} unixName: $unixname "; } ############################################ # show some help sub ShowHelp() { print " Samba4 provisioning provision.pl [options] --realm REALM set realm --domain DOMAIN set domain --domain-guid GUID set domainguid (otherwise random) --domain-sid SID set domainsid (otherwise random) --host-name HOSTNAME set hostname --host-ip IPADDRESS set ipaddress --host-guid GUID set hostguid (otherwise random) --invocationid GUID set invocationid (otherwise random) --adminpass PASSWORD choose admin password (otherwise random) --nobody USERNAME choose 'nobody' user --nogroup GROUPNAME choose 'nogroup' group --wheel GROUPNAME choose 'wheel' privileged group --users GROUPNAME choose 'users' group You must provide at least a realm and domain "; exit(1); } my $opt_help; GetOptions( 'help|h|?' => \$opt_help, 'realm=s' => \$opt_realm, 'domain=s' => \$opt_domain, 'domain-guid=s' => \$opt_domainguid, 'domain-sid=s' => \$opt_domainsid, 'host-name=s' => \$opt_hostname, 'host-ip=s' => \$opt_hostip, 'host-guid=s' => \$opt_hostguid, 'invocationid=s' => \$opt_invocationid, 'adminpass=s' => \$opt_adminpass, 'nobody=s' => \$opt_nobody, 'nogroup=s' => \$opt_nogroup, 'wheel=s' => \$opt_wheel, 'users=s' => \$opt_users, ); if ($opt_help || !$opt_realm || !$opt_domain || !$opt_hostname) { ShowHelp(); } $opt_realm=uc($opt_realm); $opt_domain=uc($opt_domain); $opt_hostname=lc($opt_hostname); $netbiosname=uc($opt_hostname); if (!$opt_hostip) { my $hip = gethostbyname($opt_hostname); if (defined $hip) { $opt_hostip = inet_ntoa($hip); } else { $opt_hostip = "<0.0.0.0>"; } } print "Provisioning host '$opt_hostname'[$opt_hostip] for domain '$opt_domain' in realm '$opt_realm'\n"; if (!$opt_nobody) { if (defined getpwnam("nobody")) { $opt_nobody = "nobody"; } } if (!$opt_nogroup) { if (defined getgrnam("nogroup")) { $opt_nogroup = "nogroup"; } elsif (defined getgrnam("nobody")) { $opt_nogroup = "nobody"; } } if (!$opt_wheel) { if (defined getgrnam("wheel")) { $opt_wheel = "wheel"; } elsif (defined getgrnam("root")) { $opt_wheel = "root"; } } if (!$opt_users) { if (defined getgrnam("users")) { $opt_users = "users"; } } $opt_nobody || die "Unable to determine a user for 'nobody'\n"; $opt_nogroup || die "Unable to determine a group for 'nogroup'\n"; $opt_users || die "Unable to determine a group for 'users'\n"; $opt_wheel || die "Unable to determine a group for 'wheel'\n"; print "Using nobody='$opt_nobody' nogroup='$opt_nogroup' wheel='$opt_wheel' users='$opt_users'\n"; print "generating ldif ...\n"; $dnsdomain = lc($opt_realm); $dnsname = lc($opt_hostname).".".$dnsdomain; $basedn = "DC=" . join(",DC=", split(/\./, $opt_realm)); my $data = FileLoad("provision.ldif") || die "Unable to load provision.ldif\n"; $data .= add_foreign("S-1-5-7", "Anonymous", "\${NOBODY}"); $data .= add_foreign("S-1-1-0", "World", "\${NOGROUP}"); $data .= add_foreign("S-1-5-2", "Network", "\${NOGROUP}"); $data .= add_foreign("S-1-5-18", "System", "root"); $data .= add_foreign("S-1-5-11", "Authenticated Users", "\${USERS}"); if (!$opt_adminpass) { $opt_adminpass = randpass(); print "chose random Administrator password '$opt_adminpass'\n"; } # allow provisioning to be run from the source directory $ENV{"PATH"} .= ":bin:../bin"; my $res = apply_substitutions($data); my $newdb = "newdb." . int(rand(1000)); print "Putting new database files in $newdb\n"; mkdir($newdb) || die "Unable to create temporary directory $newdb\n"; FileSave("$newdb/sam.ldif", $res); print "creating $newdb/sam.ldb ...\n"; system("ldbadd -H $newdb/sam.ldb $newdb/sam.ldif") == 0 || die "Failed to create sam.ldb\n"; $data = FileLoad("rootdse.ldif") || die "Unable to load rootdse.ldif\n"; $res = apply_substitutions($data); FileSave("$newdb/rootdse.ldif", $res); print "creating $newdb/rootdse.ldb ...\n"; system("ldbadd -H $newdb/rootdse.ldb $newdb/rootdse.ldif") == 0 || die "Failed to create rootdse.ldb\n"; $data = FileLoad("secrets.ldif") || die "Unable to load secrets.ldif\n"; $res = apply_substitutions($data); FileSave("$newdb/secrets.ldif", $res); print "creating $newdb/secrets.ldb ...\n"; system("ldbadd -H $newdb/secrets.ldb $newdb/secrets.ldif") == 0 || die "Failed to create secrets.ldb\n"; $data = FileLoad("provision.zone") || die "Unable to load provision.zone\n"; $res = apply_substitutions($data); print "saving dns zone to $newdb/$dnsdomain.zone ...\n"; FileSave("$newdb/$dnsdomain.zone", $res); print "creating $newdb/hklm.ldb ... \n"; system("ldbadd -H $newdb/hklm.ldb hklm.ldif") == 0 || die "Failed to create hklm.ldb\n"; print " Installation: - Please move $newdb/*.ldb to the private/ directory of your Samba4 installation - Please use $newdb/$dnsdomain.zone in BIND on your dns server ";