/* Unix SMB/CIFS implementation. Samba internal messaging functions Copyright (C) Andrew Tridgell 2000 Copyright (C) 2001 by Martin Pool This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /** @defgroups messages Internal messaging framework @{ @file messages.c This module is used for internal messaging between Samba daemons. The idea is that if a part of Samba wants to do communication with another Samba process then it will do a message_register() of a dispatch function, and use message_send_pid() to send messages to that process. The dispatch function is given the pid of the sender, and it can use that to reply by message_send_pid(). See ping_message() for a simple example. This system doesn't have any inherent size limitations but is not very efficient for large messages or when messages are sent in very quick succession. */ #include "includes.h" /* the locking database handle */ static TDB_CONTEXT *tdb; static int received_signal; /* change the message version with any incompatible changes in the protocol */ #define MESSAGE_VERSION 1 struct message_rec { int msg_version; int msg_type; pid_t dest; pid_t src; size_t len; }; /* we have a linked list of dispatch handlers */ static struct dispatch_fns { struct dispatch_fns *next, *prev; int msg_type; void (*fn)(int msg_type, pid_t pid, void *buf, size_t len); } *dispatch_fns; /**************************************************************************** Notifications come in as signals. ****************************************************************************/ static void sig_usr1(void) { received_signal = 1; sys_select_signal(); } /**************************************************************************** A useful function for testing the message system. ****************************************************************************/ void ping_message(int msg_type, pid_t src, void *buf, size_t len) { char *msg = buf ? buf : "none"; DEBUG(1,("INFO: Received PING message from PID %u [%s]\n",(unsigned int)src, msg)); message_send_pid(src, MSG_PONG, buf, len, True); } /**************************************************************************** Return current debug level. ****************************************************************************/ void debuglevel_message(int msg_type, pid_t src, void *buf, size_t len) { DEBUG(1,("INFO: Received REQ_DEBUGLEVEL message from PID %u\n",(unsigned int)src)); message_send_pid(src, MSG_DEBUGLEVEL, DEBUGLEVEL_CLASS, sizeof(DEBUGLEVEL_CLASS), True); } /**************************************************************************** Initialise the messaging functions. ****************************************************************************/ BOOL message_init(void) { if (tdb) return True; tdb = tdb_open_log(lock_path("messages.tdb"), 0, TDB_CLEAR_IF_FIRST|TDB_DEFAULT, O_RDWR|O_CREAT,0600); if (!tdb) { DEBUG(0,("ERROR: Failed to initialise messages database\n")); return False; } CatchSignal(SIGUSR1, SIGNAL_CAST sig_usr1); message_register(MSG_PING, ping_message); message_register(MSG_REQ_DEBUGLEVEL, debuglevel_message); return True; } /******************************************************************* Form a static tdb key from a pid. ******************************************************************/ static TDB_DATA message_key_pid(pid_t pid) { static char key[20]; TDB_DATA kbuf; slprintf(key, sizeof(key)-1, "PID/%d", (int)pid); kbuf.dptr = (char *)key; kbuf.dsize = strlen(key)+1; return kbuf; } /**************************************************************************** Notify a process that it has a message. If the process doesn't exist then delete its record in the database. ****************************************************************************/ static BOOL message_notify(pid_t pid) { if (kill(pid, SIGUSR1) == -1) { if (errno == ESRCH) { DEBUG(2,("pid %d doesn't exist - deleting messages record\n", (int)pid)); tdb_delete(tdb, message_key_pid(pid)); } else { DEBUG(2,("message to process %d failed - %s\n", (int)pid, strerror(errno))); } return False; } return True; } /**************************************************************************** Send a message to a particular pid. ****************************************************************************/ BOOL message_send_pid(pid_t pid, int msg_type, const void *buf, size_t len, BOOL duplicates_allowed) { TDB_DATA kbuf; TDB_DATA dbuf; struct message_rec rec; void *p; rec.msg_version = MESSAGE_VERSION; rec.msg_type = msg_type; rec.dest = pid; rec.src = sys_getpid(); rec.len = len; kbuf = message_key_pid(pid); /* lock the record for the destination */ tdb_chainlock(tdb, kbuf); dbuf = tdb_fetch(tdb, kbuf); if (!dbuf.dptr) { /* its a new record */ p = (void *)malloc(len + sizeof(rec)); if (!p) goto failed; memcpy(p, &rec, sizeof(rec)); if (len > 0) memcpy((void *)((char*)p+sizeof(rec)), buf, len); dbuf.dptr = p; dbuf.dsize = len + sizeof(rec); tdb_store(tdb, kbuf, dbuf, TDB_REPLACE); SAFE_FREE(p); goto ok; } if (!duplicates_allowed) { char *ptr; struct message_rec prec; for(ptr = (char *)dbuf.dptr; ptr < dbuf.dptr + dbuf.dsize; ) { /* * First check if the message header matches, then, if it's a non-zero * sized message, check if the data matches. If so it's a duplicate and * we can discard it. JRA. */ if (!memcmp(ptr, &rec, sizeof(rec))) { if (!len || (len && !memcmp( ptr + sizeof(rec), buf, len))) { DEBUG(10,("message_send_pid: discarding duplicate message.\n")); SAFE_FREE(dbuf.dptr); tdb_chainunlock(tdb, kbuf); return True; } } memcpy(&prec, ptr, sizeof(prec)); ptr += sizeof(rec) + prec.len; } } /* we're adding to an existing entry */ p = (void *)malloc(dbuf.dsize + len + sizeof(rec)); if (!p) goto failed; memcpy(p, dbuf.dptr, dbuf.dsize); memcpy((void *)((char*)p+dbuf.dsize), &rec, sizeof(rec)); if (len > 0) memcpy((void *)((char*)p+dbuf.dsize+sizeof(rec)), buf, len); SAFE_FREE(dbuf.dptr); dbuf.dptr = p; dbuf.dsize += len + sizeof(rec); tdb_store(tdb, kbuf, dbuf, TDB_REPLACE); SAFE_FREE(dbuf.dptr); ok: tdb_chainunlock(tdb, kbuf); errno = 0; /* paranoia */ return message_notify(pid); failed: tdb_chainunlock(tdb, kbuf); errno = 0; /* paranoia */ return False; } /**************************************************************************** Retrieve the next message for the current process. ****************************************************************************/ static BOOL message_recv(int *msg_type, pid_t *src, void **buf, size_t *len) { TDB_DATA kbuf; TDB_DATA dbuf; struct message_rec rec; kbuf = message_key_pid(sys_getpid()); tdb_chainlock(tdb, kbuf); dbuf = tdb_fetch(tdb, kbuf); if (dbuf.dptr == NULL || dbuf.dsize == 0) goto failed; memcpy(&rec, dbuf.dptr, sizeof(rec)); if (rec.msg_version != MESSAGE_VERSION) { DEBUG(0,("message version %d received (expected %d)\n", rec.msg_version, MESSAGE_VERSION)); goto failed; } if (rec.len > 0) { (*buf) = (void *)malloc(rec.len); if (!(*buf)) goto failed; memcpy(*buf, dbuf.dptr+sizeof(rec), rec.len); } else { *buf = NULL; } *len = rec.len; *msg_type = rec.msg_type; *src = rec.src; if (dbuf.dsize - (sizeof(rec)+rec.len) > 0) memmove(dbuf.dptr, dbuf.dptr+sizeof(rec)+rec.len, dbuf.dsize - (sizeof(rec)+rec.len)); dbuf.dsize -= sizeof(rec)+rec.len; if (dbuf.dsize == 0) tdb_delete(tdb, kbuf); else tdb_store(tdb, kbuf, dbuf, TDB_REPLACE); SAFE_FREE(dbuf.dptr); tdb_chainunlock(tdb, kbuf); return True; failed: tdb_chainunlock(tdb, kbuf); return False; } /**************************************************************************** Receive and dispatch any messages pending for this process. Notice that all dispatch handlers for a particular msg_type get called, so you can register multiple handlers for a message. ****************************************************************************/ void message_dispatch(void) { int msg_type; pid_t src; void *buf; size_t len; struct dispatch_fns *dfn; int n_handled; if (!received_signal) return; DEBUG(10,("message_dispatch: received_signal = %d\n", received_signal)); received_signal = 0; while (message_recv(&msg_type, &src, &buf, &len)) { DEBUG(10,("message_dispatch: received msg_type=%d src_pid=%d\n", msg_type, (int) src)); n_handled = 0; for (dfn = dispatch_fns; dfn; dfn = dfn->next) { if (dfn->msg_type == msg_type) { DEBUG(10,("message_dispatch: processing message of type %d.\n", msg_type)); dfn->fn(msg_type, src, buf, len); n_handled++; } } if (!n_handled) { DEBUG(5,("message_dispatch: warning: no handlers registed for " "msg_type %d in pid%d\n", msg_type, getpid())); } SAFE_FREE(buf); } } /**************************************************************************** Register a dispatch function for a particular message type. ****************************************************************************/ void message_register(int msg_type, void (*fn)(int msg_type, pid_t pid, void *buf, size_t len)) { struct dispatch_fns *dfn; dfn = (struct dispatch_fns *)malloc(sizeof(*dfn)); if (dfn != NULL) { ZERO_STRUCTPN(dfn); dfn->msg_type = msg_type; dfn->fn = fn; DLIST_ADD(dispatch_fns, dfn); } else { DEBUG(0,("message_register: Not enough memory. malloc failed!\n")); } } /**************************************************************************** De-register the function for a particular message type. ****************************************************************************/ void message_deregister(int msg_type) { struct dispatch_fns *dfn, *next; for (dfn = dispatch_fns; dfn; dfn = next) { next = dfn->next; if (dfn->msg_type == msg_type) { DLIST_REMOVE(dispatch_fns, dfn); SAFE_FREE(dfn); } } } struct msg_all { int msg_type; const void *buf; size_t len; BOOL duplicates; int n_sent; }; /**************************************************************************** Send one of the messages for the broadcast. ****************************************************************************/ static int traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA kbuf, TDB_DATA dbuf, void *state) { struct connections_data crec; struct msg_all *msg_all = (struct msg_all *)state; if (dbuf.dsize != sizeof(crec)) return 0; memcpy(&crec, dbuf.dptr, sizeof(crec)); if (crec.cnum != -1) return 0; /* if the msg send fails because the pid was not found (i.e. smbd died), * the msg has already been deleted from the messages.tdb.*/ if (!message_send_pid(crec.pid, msg_all->msg_type, msg_all->buf, msg_all->len, msg_all->duplicates)) { /* if the pid was not found delete the entry from connections.tdb */ if (errno == ESRCH) { DEBUG(2,("pid %u doesn't exist - deleting connections %d [%s]\n", (unsigned int)crec.pid, crec.cnum, crec.name)); tdb_delete(the_tdb, kbuf); } } msg_all->n_sent++; return 0; } /** * Send a message to all smbd processes. * * It isn't very efficient, but should be OK for the sorts of * applications that use it. When we need efficient broadcast we can add * it. * * @param n_sent Set to the number of messages sent. This should be * equal to the number of processes, but be careful for races. * * @return True for success. **/ BOOL message_send_all(TDB_CONTEXT *conn_tdb, int msg_type, const void *buf, size_t len, BOOL duplicates_allowed, int *n_sent) { struct msg_all msg_all; msg_all.msg_type = msg_type; msg_all.buf = buf; msg_all.len = len; msg_all.duplicates = duplicates_allowed; msg_all.n_sent = 0; tdb_traverse(conn_tdb, traverse_fn, &msg_all); if (n_sent) *n_sent = msg_all.n_sent; return True; } /** @} **/ #n223'>223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 
#! /usr/bin/python -E
# Authors: Karl MacMillan <kmacmillan@mentalrootkit.com>
#          Simo Sorce <ssorce@redhat.com>
#          Rob Crittenden <rcritten@redhat.com>
#
# Copyright (C) 2007-2010  Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#


# requires the following packages:
# fedora-ds-base
# openldap-clients
# nss-tools

import sys
import os
import errno
import logging
import grp
import subprocess
import signal
import shutil
import glob
import traceback
from ConfigParser import RawConfigParser
import random
import tempfile

from ipaserver.install import dsinstance
from ipaserver.install import krbinstance
from ipaserver.install import bindinstance
from ipaserver.install import httpinstance
from ipaserver.install import ntpinstance
from ipaserver.install import certs
from ipaserver.install import cainstance

from ipaserver.install import service
from ipapython import version
from ipaserver.install.installutils import *
from ipaserver.plugins.ldap2 import ldap2

from ipapython import sysrestore
from ipapython.ipautil import *
from ipalib import api, errors, util
from ipalib.parameters import IA5Str
from ipapython.config import IPAOptionParser
from ipalib.dn import DN

pw_name = None
uninstalling = False

VALID_SUBJECT_ATTRS = ['cn', 'st', 'o', 'ou', 'dnqualifier', 'c',
                       'serialnumber', 'l', 'title', 'sn', 'givenname',
                       'initials', 'generationqualifier', 'dc', 'mail',
                       'uid', 'postaladdress', 'postalcode', 'postofficebox',
                       'houseidentifier', 'e', 'street', 'pseudonym',
                       'incorporationlocality', 'incorporationstate',
                       'incorporationcountry', 'businesscategory']

def zonemgr_callback(option, opt_str, value, parser):
    """
    Make sure the zonemgr is an IA5String.
    """
    name = opt_str.replace('--','')
    v = unicode(value, 'utf-8')
    ia = IA5Str(name)
    ia._convert_scalar(v)
    parser.values.zonemgr = value

def subject_callback(option, opt_str, value, parser):
    """
    Make sure the certificate subject base is a valid DN
    """
    name = opt_str.replace('--','')
    v = unicode(value, 'utf-8')
    try:
        dn = DN(v)
        for rdn in dn:
            if rdn.attr.lower() not in VALID_SUBJECT_ATTRS:
                raise ValueError('invalid attribute: %s' % rdn.attr)
    except ValueError, e:
        raise ValueError('Invalid subject base format: %s' % str(e))
    parser.values.subject = str(dn) # may as well normalize it

def parse_options():
    # Guaranteed to give a random 200k range below the 2G mark (uint32_t limit)
    namespace = random.randint(1, 10000) * 200000
    parser = IPAOptionParser(version=version.VERSION)
    parser.add_option("-r", "--realm", dest="realm_name",
                      help="realm name")
    parser.add_option("-n", "--domain", dest="domain_name",
                      help="domain name")
    parser.add_option("-p", "--ds-password", dest="dm_password",
                      sensitive=True, help="admin password")
    parser.add_option("-P", "--master-password",
                      dest="master_password", sensitive=True,
                      help="kerberos master password (normally autogenerated)")
    parser.add_option("-a", "--admin-password",
                      sensitive=True, dest="admin_password",
                      help="admin user kerberos password")
    parser.add_option("-d", "--debug", dest="debug", action="store_true",
                      default=False, help="print debugging information")
    parser.add_option("", "--selfsign", dest="selfsign", action="store_true",
                      default=False, help="Configure a self-signed CA instance rather than a dogtag CA")
    parser.add_option("", "--external-ca", dest="external_ca", action="store_true",
                      default=False, help="Generate a CSR to be signed by an external CA")
    parser.add_option("", "--external_cert_file", dest="external_cert_file",
                      help="File containing PKCS#10 certificate")
    parser.add_option("", "--external_ca_file", dest="external_ca_file",
                      help="File containing PKCS#10 of the external CA chain")
    parser.add_option("--hostname", dest="host_name", help="fully qualified name of server")
    parser.add_option("--ip-address", dest="ip_address",
                      type="ip", ip_local=True,
                      help="Master Server IP Address")
    parser.add_option("--setup-dns", dest="setup_dns", action="store_true",
                      default=False, help="configure bind with our zone")
    parser.add_option("--forwarder", dest="forwarders", action="append",
                      type="ip", help="Add a DNS forwarder")
    parser.add_option("--no-forwarders", dest="no_forwarders", action="store_true",
                      default=False, help="Do not add any DNS forwarders, use root servers instead")
    parser.add_option("--reverse-zone", dest="reverse_zone", help="The reverse DNS zone to use")
    parser.add_option("--no-reverse", dest="no_reverse", action="store_true",
                      default=False, help="Do not create reverse DNS zone")
    parser.add_option("--zonemgr", action="callback", callback=zonemgr_callback,
                      type="string",
                      help="DNS zone manager e-mail address. Defaults to root")
    parser.add_option("-U", "--unattended", dest="unattended", action="store_true",
                      default=False, help="unattended installation never prompts the user")
    parser.add_option("", "--uninstall", dest="uninstall", action="store_true",
                      default=False, help="uninstall an existing installation")
    parser.add_option("-N", "--no-ntp", dest="conf_ntp", action="store_false",
                      help="do not configure ntp", default=True)
    parser.add_option("--no-pkinit", dest="setup_pkinit", action="store_false",
                      default=True, help="disables pkinit setup steps")
    parser.add_option("--dirsrv_pkcs12", dest="dirsrv_pkcs12",
                      help="PKCS#12 file containing the Directory Server SSL certificate")
    parser.add_option("--http_pkcs12", dest="http_pkcs12",
                      help="PKCS#12 file containing the Apache Server SSL certificate")
    parser.add_option("--pkinit_pkcs12", dest="pkinit_pkcs12",
                      help="PKCS#12 file containing the Kerberos KDC SSL certificate")
    parser.add_option("--dirsrv_pin", dest="dirsrv_pin", sensitive=True,
                      help="The password of the Directory Server PKCS#12 file")
    parser.add_option("--http_pin", dest="http_pin", sensitive=True,
                      help="The password of the Apache Server PKCS#12 file")
    parser.add_option("--pkinit_pin", dest="pkinit_pin",
                      help="The password of the Kerberos KDC PKCS#12 file")
    parser.add_option("--no-host-dns", dest="no_host_dns", action="store_true",
                      default=False,
                      help="Do not use DNS for hostname lookup during installation")

    parser.add_option("--idstart", dest="idstart", default=namespace, type=int,
                      help="The starting value for the IDs range (default random)")
    parser.add_option("--idmax", dest="idmax", default=0, type=int,
                      help="The max value value for the IDs range (default: idstart+199999)")
    parser.add_option("--subject", action="callback", callback=subject_callback,
                      type="string",
                      help="The certificate subject base (default O=<realm-name>)")
    parser.add_option("--no_hbac_allow", dest="hbac_allow", default=False,
                      action="store_true",
                      help="Don't install allow_all HBAC rule")
    options, args = parser.parse_args()
    safe_options = parser.get_safe_opts(options)

    if not options.setup_dns:
        if options.forwarders:
            parser.error("You cannot specify a --forwarder option without the --setup-dns option")
        if options.no_forwarders:
            parser.error("You cannot specify a --no-forwarders option without the --setup-dns option")
        if options.reverse_zone:
            parser.error("You cannot specify a --reverse-zone option without the --setup-dns option")
        if options.no_reverse:
            parser.error("You cannot specify a --no-reverse option without the --setup-dns option")
    elif options.forwarders and options.no_forwarders:
        parser.error("You cannot specify a --forwarder option together with --no-forwarders")
    elif options.reverse_zone and options.no_reverse:
        parser.error("You cannot specify a --reverse-zone option together with --no-reverse")

    if options.uninstall:
        if (options.realm_name or
            options.admin_password or options.master_password):
            parser.error("In uninstall mode, -a, -r and -P options are not allowed")
    elif options.unattended:
        if (not options.realm_name or
            not options.dm_password or not options.admin_password):
            parser.error("In unattended mode you need to provide at least -r, -p and -a options")
        if options.setup_dns:
            if not options.forwarders and not options.no_forwarders:
                parser.error("You must specify at least one --forwarder option or --no-forwarders option")

    # If any of the PKCS#12 options are selected, all are required. Create a
    # list of the options and count it to enforce that all are required without
    # having a huge set of it blocks.
    pkcs12 = [options.dirsrv_pkcs12, options.http_pkcs12, options.dirsrv_pin, options.http_pin]
    cnt = pkcs12.count(None)
    if cnt > 0 and cnt < 4:
        parser.error("All PKCS#12 options are required if any are used.")

    if (options.external_cert_file or options.external_ca_file) and options.selfsign:
        parser.error("--selfsign cannot be used with the external CA options.")

    if options.external_ca:
        if options.external_cert_file:
            parser.error("You cannot specify --external_cert_file together with --external-ca")
        if options.external_ca_file:
            parser.error("You cannot specify --external_ca_file together with --external-ca")

    if ((options.external_cert_file and not options.external_ca_file) or
       (not options.external_cert_file and options.external_ca_file)):
        parser.error("if either external CA option is used, both are required.")

    if (options.external_ca_file and not os.path.isabs(options.external_ca_file)):
        parser.error("--external-ca-file must use an absolute path")
    if (options.external_cert_file and not os.path.isabs(options.external_cert_file)):
        parser.error("--external-cert-file must use an absolute path")

    if options.idmax == 0:
        options.idmax = int(options.idstart) + 200000 - 1

    if options.idmax < options.idstart:
        parser.error("idmax (%u) cannot be smaller than idstart (%u)" %
                    (options.idmax, options.idstart))

    #Automatically disable pkinit w/ dogtag until that is supported
    if not options.pkinit_pkcs12 and not options.selfsign:
        options.setup_pkinit = False

    return safe_options, options

def signal_handler(signum, frame):
    global ds
    print "\nCleaning up..."
    if ds:
        print "Removing configuration for %s instance" % ds.serverid
        ds.stop()
        if ds.serverid:
            dsinstance.erase_ds_instance_data (ds.serverid)
    sys.exit(1)

ANSWER_CACHE = "/root/.ipa_cache"

def read_cache(dm_password):
    """
    Returns a dict of cached answers or None if no cache file exists.
    """
    if not ipautil.file_exists(ANSWER_CACHE):
        return {}

    top_dir = tempfile.mkdtemp("ipa")
    try:
        clearfile = "%s/cache" % top_dir
        decrypt_file(ANSWER_CACHE, clearfile, dm_password, top_dir)
    except Exception, e:
        shutil.rmtree(top_dir)
        raise RuntimeError("Problem decrypting answer cache in %s, check your password." % ANSWER_CACHE)

    optdict={}
    parser = RawConfigParser()
    try:
        fp = open(clearfile, "r")
        parser.readfp(fp)
        optlist = parser.items('options')
        fp.close()

    except IOError, e:
        raise RuntimeError("Error reading cache file %s: %s" % (ANSWER_CACHE, str(e)))
    finally:
        shutil.rmtree(top_dir)

    for opt in optlist:
        value = opt[1]
        if value.lower() in ['true', 'false']:
            value = value.lower() == 'true'
        if value == 'None':
            value = None
        optdict[opt[0]] = value

    # These are the only ones that may be overridden
    if 'external_ca_file' in optdict:
        del optdict['external_ca_file']
    if 'external_cert_file' in optdict:
        del optdict['external_cert_file']

    return optdict

def write_cache(options):
    """
    Takes a dict as input and writes a cached file of answers
    """

    # convert the options instance into a dict
    optdict = eval(str(options))
    parser = RawConfigParser()
    top_dir = tempfile.mkdtemp("ipa")
    try:
        fp = open("%s/cache" % top_dir, "w")
        parser.add_section('options')
        for opt in optdict:
            parser.set('options', opt, optdict[opt])
        parser.write(fp)
        fp.close()
        ipautil.encrypt_file("%s/cache" % top_dir, ANSWER_CACHE, options.dm_password, top_dir);
    except IOError, e:
        raise RuntimeError("Unable to cache command-line options %s" % str(e))
    finally:
        shutil.rmtree(top_dir)

def read_host_name(host_default,no_host_dns=False):
    host_name = ""

    print "Enter the fully qualified domain name of the computer"
    print "on which you're setting up server software. Using the form"
    print "<hostname>.<domainname>"
    print "Example: master.example.com."
    print ""
    print ""
    if host_default == "":
        host_default = "master.example.com"
    while True:
        host_name = user_input("Server host name", host_default, allow_empty = False)
        print ""
        try:
            verify_fqdn(host_name,no_host_dns)
        except Exception, e:
            raise e
        else:
            break
    return host_name

def read_domain_name(domain_name, unattended):
    print "The domain name has been calculated based on the host name."
    print ""
    if not unattended:
        domain_name = user_input("Please confirm the domain name", domain_name)
        print ""
    return domain_name

def read_realm_name(domain_name, unattended):
    print "The kerberos protocol requires a Realm name to be defined."
    print "This is typically the domain name converted to uppercase."
    print ""

    if unattended:
        return domain_name.upper()
    realm_name = user_input("Please provide a realm name", domain_name.upper())
    upper_dom = realm_name.upper()  #pylint: disable=E1103
    if upper_dom != realm_name:
        print "An upper-case realm name is required."
        if not user_input("Do you want to use " + upper_dom + " as realm name?", True):
            print ""
            print "An upper-case realm name is required. Unable to continue."
            sys.exit(1)
        else:
            realm_name = upper_dom
        print ""
    return realm_name


def read_dm_password():
    print "Certain directory server operations require an administrative user."
    print "This user is referred to as the Directory Manager and has full access"
    print "to the Directory for system management tasks and will be added to the"
    print "instance of directory server created for IPA."
    print "The password must be at least 8 characters long."
    print ""
    #TODO: provide the option of generating a random password
    dm_password = read_password("Directory Manager")
    return dm_password

def read_admin_password():
    print "The IPA server requires an administrative user, named 'admin'."
    print "This user is a regular system account used for IPA server administration."
    print ""
    #TODO: provide the option of generating a random password
    admin_password = read_password("IPA admin")
    return admin_password

def check_dirsrv(unattended):
    serverids = dsinstance.check_existing_installation()
    if serverids:
        print ""
        print "An existing Directory Server has been detected."
        if unattended or not user_input("Do you wish to remove it and create a new one?", False):
            print ""
            print "Only a single Directory Server instance is allowed on an IPA"
            print "server, the one used by IPA itself."
            sys.exit(1)

        try:
            service.stop("dirsrv")
        except:
            pass

        for serverid in serverids:
            dsinstance.erase_ds_instance_data(serverid)

    (ds_unsecure, ds_secure) = dsinstance.check_ports()
    if not ds_unsecure or not ds_secure:
        print "IPA requires ports 389 and 636 for the Directory Server."
        print "These are currently in use:"
        if not ds_unsecure:
            print "\t389"
        if not ds_secure:
            print "\t636"
        sys.exit(1)

def uninstall():

    print "Shutting down all IPA services"
    try:
        (stdout, stderr, rc) = run(["/usr/sbin/ipactl", "stop"], raiseonerr=False)
    except Exception, e:
        pass

    print "Removing IPA client configuration"
    try:
        (stdout, stderr, rc) = run(["/usr/sbin/ipa-client-install", "--on-master", "--unattended", "--uninstall"], raiseonerr=False)
        if rc not in [0,2]:
            logging.debug("ipa-client-install returned %d" % rc)
            raise RuntimeError(stdout)
    except Exception, e:
        print "Uninstall of client side components failed!"
        print "ipa-client-install returned: " + str(e)

    ntpinstance.NTPInstance(fstore).uninstall()
    if cainstance.CADSInstance().is_configured():
        cainstance.CADSInstance().uninstall()
    if cainstance.CAInstance(api.env.realm, certs.NSS_DIR).is_configured():
        cainstance.CAInstance(api.env.realm, certs.NSS_DIR).uninstall()
    bindinstance.BindInstance(fstore).uninstall()
    httpinstance.HTTPInstance(fstore).uninstall()
    krbinstance.KrbInstance(fstore).uninstall()
    dsinstance.DsInstance(fstore=fstore).uninstall()
    fstore.restore_all_files()
    try:
        os.remove(ANSWER_CACHE)
    except Exception:
        pass
    # ipa-client-install removes /etc/ipa/default.conf
    try:
        os.remove("/etc/httpd/conf.d/ipa-rewrite.conf")
        os.remove("/etc/httpd/conf.d/ipa.conf")
    except:
        pass

    sstore._load()
    group_exists = sstore.restore_state("install", "group_exists")
    if group_exists == False:
        try:
            grp.getgrnam(dsinstance.DS_GROUP)
            try:
                ipautil.run(["/usr/sbin/groupdel", dsinstance.DS_GROUP])
            except ipautil.CalledProcessError, e:
                logging.critical("failed to delete group %s" % e)
        except KeyError:
            logging.info("Group %s already removed", dsinstance.DS_GROUP)

    service.chkconfig_off('ipa')

    return 0


def set_subject_in_config(realm_name, dm_password, suffix, subject_base):
        ldapuri = 'ldapi://%%2fvar%%2frun%%2fslapd-%s.socket' % (
            dsinstance.realm_to_serverid(realm_name)
        )
        try:
            conn = ldap2(shared_instance=False, ldap_uri=ldapuri, base_dn=suffix)
            conn.connect(bind_dn='cn=directory manager', bind_pw=dm_password)
        except errors.ExecutionError, e:
            logging.critical("Could not connect to the Directory Server on %s" % realm_name)
            raise e
        (dn, entry_attrs) = conn.get_ipa_config()
        if 'ipacertificatesubjectbase' not in entry_attrs:
            mod = {'ipacertificatesubjectbase': subject_base}
            conn.update_entry(dn, mod)
        conn.disconnect()

def main():
    global ds
    global pw_name
    global uninstalling
    ds = None

    safe_options, options = parse_options()

    if os.getegid() != 0:
        sys.exit("Must be root to set up server")

    signal.signal(signal.SIGTERM, signal_handler)
    signal.signal(signal.SIGINT, signal_handler)

    if options.uninstall:
        uninstalling = True
        standard_logging_setup("/var/log/ipaserver-uninstall.log", options.debug)
    else:
        standard_logging_setup("/var/log/ipaserver-install.log", options.debug)
        print "\nThe log file for this installation can be found in /var/log/ipaserver-install.log"
        if not options.external_ca and not options.external_cert_file and (dsinstance.DsInstance().is_configured() or cainstance.CADSInstance().is_configured()):
            sys.exit("IPA server is already configured on this system.\n"
                     + "If you want to reinstall the IPA server please uninstall it first.")

        client_fstore = sysrestore.FileStore('/var/lib/ipa-client/sysrestore')
        if client_fstore.has_files():
            sys.exit("IPA client is already configured on this system.\n"
                     + "Please uninstall it first before configuring the IPA server.")

    logging.debug('%s was invoked with options: %s' % (sys.argv[0], safe_options))
    logging.debug("missing options might be asked for interactively later\n")

    global fstore
    fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore')
    global sstore
    sstore = sysrestore.StateFile('/var/lib/ipa/sysrestore')

    # Configuration for ipalib, we will bootstrap and finalize later, after
    # we are sure we have the configuration file ready.
    cfg = dict(
        context='installer',
        in_server=True,
        debug=options.debug
    )

    if options.uninstall:

        # We will need at least api.env, finalize api now. This system is
        # already installed, so the configuration file is there.
        api.bootstrap(**cfg)
        api.finalize()

        if not options.unattended:
            print "\nThis is a NON REVERSIBLE operation and will delete all data and configuration!\n"
            if not user_input("Are you sure you want to continue with the uninstall procedure?", False):
                print ""
                print "Aborting uninstall operation."
                sys.exit(1)

        return uninstall()

    if options.external_ca:
        if cainstance.CADSInstance().is_configured():
            print "CA is already installed.\nRun the installer with --external_cert_file and --external_ca_file."
            sys.exit(1)
    elif options.external_cert_file:
        if not cainstance.CADSInstance().is_configured():
            # This can happen if someone passes external_ca_file without
            # already having done the first stage of the CA install.
            print "CA is not installed yet. To install with an external CA is a two-stage process.\nFirst run the installer with --external-ca."
            sys.exit(1)
        if not ipautil.file_exists(options.external_cert_file):
            print "%s does not exist" % options.external_cert_file
            sys.exit(1)
        if not ipautil.file_exists(options.external_ca_file):
            print "%s does not exist" % options.external_ca_file
            sys.exit(1)

    # This will override any settings passed in on the cmdline
    if ipautil.file_exists(ANSWER_CACHE):
        dm_password = read_password("Directory Manager", confirm=False)
        options._update_loose(read_cache(dm_password))

    print "=============================================================================="
    print "This program will set up the FreeIPA Server."
    print ""
    print "This includes:"
    if options.conf_ntp:
        print "  * Configure the Network Time Daemon (ntpd)"
    print "  * Create and configure an instance of Directory Server"
    print "  * Create and configure a Kerberos Key Distribution Center (KDC)"
    print "  * Configure Apache (httpd)"
    if options.setup_dns:
        print "  * Configure DNS (bind)"
    if options.setup_pkinit:
        print "  * Configure the KDC to enable PKINIT"
    if not options.conf_ntp:
        print ""
        print "Excluded by options:"
        print "  * Configure the Network Time Daemon (ntpd)"
    print ""
    print "To accept the default shown in brackets, press the Enter key."
    print ""

    if not options.external_ca and not options.external_cert_file:
        # Let it past if there is an external_cert_file defined on the chance
        # that we are coming in without a cache file.
        check_dirsrv(options.unattended)

    realm_name = ""
    host_name = ""
    domain_name = ""
    ip_address = ""
    master_password = ""
    dm_password = ""
    admin_password = ""
    reverse_zone = None

    # check bind packages are installed
    if options.setup_dns:
        if not bindinstance.check_inst(options.unattended):
            sys.exit("Aborting installation")

        # Don't require an external DNS to say who we are if we are
        # setting up a local DNS server.
        options.no_host_dns = True

    # check the hostname is correctly configured, it must be as the kldap
    # utilities just use the hostname as returned by getaddrinfo to set
    # up some of the standard entries

    host_default = ""
    if options.host_name:
        host_default = options.host_name
    else:
        host_default = get_fqdn()

    try:
        if options.unattended:
            verify_fqdn(host_default,options.no_host_dns)
            host_name = host_default
        else:
            host_name = read_host_name(host_default,options.no_host_dns)
    except RuntimeError, e:
        sys.exit(str(e) + "\n")

    host_name = host_name.lower()
    logging.debug("will use host_name: %s\n" % host_name)

    if not options.domain_name:
        domain_name = read_domain_name(host_name[host_name.find(".")+1:], options.unattended)
        logging.debug("read domain_name: %s\n" % domain_name)
    else:
        domain_name = options.domain_name

    domain_name = domain_name.lower()

    # Check we have a public IP that is associated with the hostname
    hostaddr = resolve_host(host_name)
    if hostaddr is not None:
        ip = CheckedIPAddress(hostaddr, match_local=True)
    else:
        ip = options.ip_address
    if ip is None:
        print "Unable to resolve IP address for host name"
        if options.unattended:
            sys.exit(1)

    if options.ip_address:
        if options.ip_address != ip and not options.setup_dns:
            print >>sys.stderr, "Error: the hostname resolves to an IP address that is different"
            print >>sys.stderr, "from the one provided on the command line.  Please fix your DNS"
            print >>sys.stderr, "or /etc/hosts file and restart the installation."
            return 1

        ip = options.ip_address

    if ip is None:
        ip = read_ip_address(host_name, fstore)
        logging.debug("read ip_address: %s\n" % str(ip))
    ip_address = str(ip)

    if options.reverse_zone and not bindinstance.verify_reverse_zone(options.reverse_zone, ip):
        sys.exit(1)

    print "The IPA Master Server will be configured with"
    print "Hostname:    " + host_name
    print "IP address:  " + ip_address
    print "Domain name: " + domain_name
    print ""

    if not options.realm_name:
        realm_name = read_realm_name(domain_name, options.unattended)
        logging.debug("read realm_name: %s\n" % realm_name)
    else:
        realm_name = options.realm_name.upper()

    if not options.subject:
        options.subject = "O=%s" % realm_name

    if not options.dm_password:
        dm_password = read_dm_password()
    else:
        dm_password = options.dm_password

    if not options.master_password:
        master_password = ipa_generate_password()
    else:
        master_password = options.master_password

    if not options.admin_password:
        admin_password = read_admin_password()
    else:
        admin_password = options.admin_password

    if options.setup_dns:
        if options.no_forwarders:
            dns_forwarders = ()
        elif options.forwarders:
            dns_forwarders = options.forwarders
        else:
            dns_forwarders = read_dns_forwarders()
    else:
        dns_forwarders = ()
    logging.debug("will use dns_forwarders: %s\n" % str(dns_forwarders))

    # Create the management framework config file and finalize api
    old_umask = os.umask(022)   # must be readable for httpd
    try:
        fd = open("/etc/ipa/default.conf", "w")
        fd.write("[global]\n")
        fd.write("host=" + host_name + "\n")
        fd.write("basedn=" + util.realm_to_suffix(realm_name) + "\n")
        fd.write("realm=" + realm_name + "\n")
        fd.write("domain=" + domain_name + "\n")
        fd.write("xmlrpc_uri=https://%s/ipa/xml\n" % host_name)
        fd.write("ldap_uri=ldapi://%%2fvar%%2frun%%2fslapd-%s.socket\n" % dsinstance.realm_to_serverid(realm_name))
        fd.write("enable_ra=True\n")
        if not options.selfsign:
            fd.write("ra_plugin=dogtag\n")
        fd.write("mode=production\n")
        fd.close()
    finally:
        os.umask(old_umask)

    api.bootstrap(**cfg)
    api.finalize()

    if not options.unattended:
        print ""
        print "The following operations may take some minutes to complete."
        print "Please wait until the prompt is returned."
        print ""

    # Create DS group if it doesn't exist yet
    try:
        grp.getgrnam(dsinstance.DS_GROUP)
        logging.debug("ds group %s exists" % dsinstance.DS_GROUP)
        group_exists = True
    except KeyError:
        group_exists = False
        args = ["/usr/sbin/groupadd", "-r", dsinstance.DS_GROUP]
        try:
            ipautil.run(args)
            logging.debug("done adding DS group")
        except ipautil.CalledProcessError, e:
            logging.critical("failed to add DS group: %s" % e)
    sstore.backup_state("install", "group_exists", group_exists)

    # Configure ntpd
    if options.conf_ntp:
        ntp = ntpinstance.NTPInstance(fstore)
        if not ntp.is_configured():
            ntp.create_instance()

    if options.selfsign:
        ca = certs.CertDB(realm_name, host_name=host_name,
                          subject_base=options.subject)
        ca.create_self_signed()
    else:
        # Clean up any previous self-signed CA that may exist
        try:
            os.remove(certs.CA_SERIALNO)
        except:
            pass

        # Figure out what state we're in. See cainstance.py for more info on
        # the 3 states.
        if options.external_cert_file:
            external = 2
        elif options.external_ca:
            external = 1
        else:
            external = 0

        cs = cainstance.CADSInstance(host_name, realm_name, domain_name, dm_password)
        if not cs.is_configured():
            cs.create_instance(realm_name, host_name, domain_name, dm_password, subject_base=options.subject)
        ca = cainstance.CAInstance(realm_name, certs.NSS_DIR)
        if external == 0:
            ca.configure_instance(host_name, dm_password, dm_password,
                                  subject_base=options.subject)
        elif external == 1:
            # stage 1 of external CA installation
            options.realm_name = realm_name
            options.domain_name = domain_name
            options.master_password = master_password
            options.dm_password = dm_password
            options.admin_password = admin_password
            options.host_name = host_name
            options.unattended = True
            options.forwarders = dns_forwarders
            options.reverse_zone = reverse_zone
            write_cache(options)
            ca.configure_instance(host_name, dm_password, dm_password,
                                  csr_file="/root/ipa.csr",
                                  subject_base=options.subject)
        else:
            # stage 2 of external CA installation
            ca.configure_instance(host_name, dm_password, dm_password,
                                  cert_file=options.external_cert_file,
                                  cert_chain_file=options.external_ca_file,
                                  subject_base=options.subject)

    # Now put the CA cert where other instances exepct it
    ca.publish_ca_cert("/etc/ipa/ca.crt")

    service.start('messagebus')

    # Create a directory server instance
    ds = dsinstance.DsInstance(fstore=fstore)

    if options.dirsrv_pin:
        [pw_fd, pw_name] = tempfile.mkstemp()
        os.write(pw_fd, options.dirsrv_pin)
        os.close(pw_fd)

    if options.dirsrv_pkcs12:
        pkcs12_info = (options.dirsrv_pkcs12, pw_name)
        try:
            ds.create_instance(realm_name, host_name, domain_name,
                               dm_password, pkcs12_info,
                               subject_base=options.subject,
                               hbac_allow=not options.hbac_allow)
        finally:
            os.remove(pw_name)
    else:
        ds.create_instance(realm_name, host_name, domain_name,
                           dm_password, self_signed_ca=options.selfsign,
                           idstart=options.idstart, idmax=options.idmax,
                           subject_base=options.subject,
                           hbac_allow=not options.hbac_allow)

    # We need to ldap_enable the CA now that DS is up and running
    if not options.selfsign:
        ca.ldap_enable('CA', host_name, dm_password,
                       util.realm_to_suffix(realm_name))

        # Turn on SSL in the dogtag LDAP instance. This will get restarted
        # later, we don't need SSL now.
        cs.create_certdb()
        cs.enable_ssl()
        # Add the IPA service for storing the PKI-IPA server certificate.
        cs.add_simple_service(cs.principal)
        cs.add_cert_to_service()

    # Create a kerberos instance
    if options.pkinit_pin:
        [pw_fd, pw_name] = tempfile.mkstemp()
        os.write(pw_fd, options.dirsrv_pin)
        os.close(pw_fd)

    krb = krbinstance.KrbInstance(fstore)
    if options.pkinit_pkcs12:
        pkcs12_info = (options.pkinit_pkcs12, pw_name)
        krb.create_instance(realm_name, host_name, domain_name,
                            dm_password, master_password,
                            setup_pkinit=options.setup_pkinit,
                            pkcs12_info=pkcs12_info,
                            subject_base=options.subject)
    else:
        krb.create_instance(realm_name, host_name, domain_name,
                            dm_password, master_password,
                            setup_pkinit=options.setup_pkinit,
                            self_signed_ca=options.selfsign,
                            subject_base=options.subject)

    if options.pkinit_pin:
        os.remove(pw_name)

    # The DS instance is created before the keytab, add the SSL cert we
    # generated
    ds.add_cert_to_service()

    # Create a HTTP instance

    if options.http_pin:
        [pw_fd, pw_name] = tempfile.mkstemp()
        os.write(pw_fd, options.http_pin)
        os.close(pw_fd)

    http = httpinstance.HTTPInstance(fstore)
    if options.http_pkcs12:
        pkcs12_info = (options.http_pkcs12, pw_name)
        http.create_instance(realm_name, host_name, domain_name, dm_password, autoconfig=False, pkcs12_info=pkcs12_info, subject_base=options.subject)
        os.remove(pw_name)
    else:
        http.create_instance(realm_name, host_name, domain_name, dm_password, autoconfig=True, self_signed_ca=options.selfsign, subject_base=options.subject)
    ipautil.run(["/sbin/restorecon", "/var/cache/ipa/sessions"])

    set_subject_in_config(realm_name, dm_password, util.realm_to_suffix(realm_name), options.subject)
    if not options.selfsign:
        service.print_msg("Setting the certificate subject base")
        ca.set_subject_in_config(util.realm_to_suffix(realm_name))

    # Apply any LDAP updates. Needs to be done after the configuration file
    # is created
    service.print_msg("Applying LDAP updates")
    ds.apply_updates()

    # Restart ds and krb after configurations have been changed
    service.print_msg("Restarting the directory server")
    ds.restart()

    service.print_msg("Restarting the KDC")
    krb.restart()

    # Restart httpd to pick up the new IPA configuration
    service.print_msg("Restarting the web server")
    http.restart()

    # Create a BIND instance
    bind = bindinstance.BindInstance(fstore, dm_password)
    if options.setup_dns:
        if options.reverse_zone:
            reverse_zone = bindinstance.normalize_zone(options.reverse_zone)
        elif not options.no_reverse:
            reverse_zone = bindinstance.get_reverse_zone_default(ip)
            if not options.unattended and bindinstance.create_reverse():
                reverse_zone = bindinstance.read_reverse_zone(reverse_zone, ip)

        if reverse_zone is not None:
            print "Using reverse zone %s" % reverse_zone

    bind.setup(host_name, ip_address, realm_name, domain_name, dns_forwarders, options.conf_ntp, reverse_zone, zonemgr=options.zonemgr)
    if options.setup_dns:
        api.Backend.ldap2.connect(bind_dn="cn=Directory Manager", bind_pw=dm_password)

        bind.create_instance()
    else:
        bind.create_sample_bind_zone()

    # Set the admin user kerberos password
    ds.change_admin_password(admin_password)

    # Call client install script
    try:
        run(["/usr/sbin/ipa-client-install", "--on-master", "--unattended", "--domain", domain_name, "--server", host_name, "--realm", realm_name, "--hostname", host_name])
    except Exception, e:
        sys.exit("Configuration of client side components failed!\nipa-client-install returned: " + str(e))


    #Everything installed properly, activate ipa service.
    service.chkconfig_on('ipa')

    print "=============================================================================="
    print "Setup complete"
    print ""
    print "Next steps:"
    print "\t1. You must make sure these network ports are open:"
    print "\t\tTCP Ports:"
    print "\t\t  * 80, 443: HTTP/HTTPS"
    print "\t\t  * 389, 636: LDAP/LDAPS"
    print "\t\t  * 88, 464: kerberos"
    if options.setup_dns:
        print "\t\t  * 53: bind"
    print "\t\tUDP Ports:"
    print "\t\t  * 88, 464: kerberos"
    if options.setup_dns:
        print "\t\t  * 53: bind"
    if options.conf_ntp:
        print "\t\t  * 123: ntp"
    print ""
    print "\t2. You can now obtain a kerberos ticket using the command: 'kinit admin'"
    print "\t   This ticket will allow you to use the IPA tools (e.g., ipa user-add)"
    print "\t   and the web user interface."

    if not service.is_running("ntpd"):
        print "\t3. Kerberos requires time synchronization between clients"
        print "\t   and servers for correct operation. You should consider enabling ntpd."

    print ""
    if options.http_pkcs12:
        print "In order for Firefox autoconfiguration to work you will need to"
        print "use a SSL signing certificate. See the IPA documentation for more details."
        print "You also need to install a PEM copy of the CA certificate into"
        print "/usr/share/ipa/html/ca.crt"
    else:
        if options.selfsign:
            print "Be sure to back up the CA certificate stored in /etc/httpd/alias/cacert.p12"
            print "The password for this file is in /etc/httpd/alias/pwdfile.txt"
        else:
            print "Be sure to back up the CA certificate stored in /root/cacert.p12"
            print "This file is required to create replicas. The password for this"
            print "file is the Directory Manager password"

    if ipautil.file_exists(ANSWER_CACHE):
        os.remove(ANSWER_CACHE)
    return 0

try:
    try:
        sys.exit(main())
    except SystemExit, e:
        sys.exit(e)
    except HostnameLocalhost:
        print "The hostname resolves to the localhost address (127.0.0.1/::1)"
        print "Please change your /etc/hosts file so that the hostname"
        print "resolves to the ip address of your network interface."
        print "The KDC service does not listen on localhost"
        print ""
        print "Please fix your /etc/hosts file and restart the setup program"
    except Exception, e:
        if uninstalling: