File: ldap.n

package info (click to toggle)
tcllib 2.0%2Bdfsg-4
  • links: PTS
  • area: main
  • in suites: trixie
  • size: 83,572 kB
  • sloc: tcl: 306,798; ansic: 14,272; sh: 3,035; xml: 1,766; yacc: 1,157; pascal: 881; makefile: 124; perl: 84; f90: 84; python: 33; ruby: 13; php: 11
file content (934 lines) | stat: -rw-r--r-- 31,371 bytes parent folder | download | duplicates (2)
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
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
'\"
'\" Generated from file 'ldap\&.man' by tcllib/doctools with format 'nroff'
'\" Copyright (c) 2004 Andreas Kupries <andreas_kupries@users\&.sourceforge\&.net>
'\" Copyright (c) 2004 Jochen Loewer <loewerj@web\&.de>
'\" Copyright (c) 2006 Michael Schlenker <mic42@users\&.sourceforge\&.net>
'\"
.TH "ldap" n 1\&.10\&.2 tcllib "LDAP client"
.\" The -*- nroff -*- definitions below are for supplemental macros used
.\" in Tcl/Tk manual entries.
.\"
.\" .AP type name in/out ?indent?
.\"	Start paragraph describing an argument to a library procedure.
.\"	type is type of argument (int, etc.), in/out is either "in", "out",
.\"	or "in/out" to describe whether procedure reads or modifies arg,
.\"	and indent is equivalent to second arg of .IP (shouldn't ever be
.\"	needed;  use .AS below instead)
.\"
.\" .AS ?type? ?name?
.\"	Give maximum sizes of arguments for setting tab stops.  Type and
.\"	name are examples of largest possible arguments that will be passed
.\"	to .AP later.  If args are omitted, default tab stops are used.
.\"
.\" .BS
.\"	Start box enclosure.  From here until next .BE, everything will be
.\"	enclosed in one large box.
.\"
.\" .BE
.\"	End of box enclosure.
.\"
.\" .CS
.\"	Begin code excerpt.
.\"
.\" .CE
.\"	End code excerpt.
.\"
.\" .VS ?version? ?br?
.\"	Begin vertical sidebar, for use in marking newly-changed parts
.\"	of man pages.  The first argument is ignored and used for recording
.\"	the version when the .VS was added, so that the sidebars can be
.\"	found and removed when they reach a certain age.  If another argument
.\"	is present, then a line break is forced before starting the sidebar.
.\"
.\" .VE
.\"	End of vertical sidebar.
.\"
.\" .DS
.\"	Begin an indented unfilled display.
.\"
.\" .DE
.\"	End of indented unfilled display.
.\"
.\" .SO ?manpage?
.\"	Start of list of standard options for a Tk widget. The manpage
.\"	argument defines where to look up the standard options; if
.\"	omitted, defaults to "options". The options follow on successive
.\"	lines, in three columns separated by tabs.
.\"
.\" .SE
.\"	End of list of standard options for a Tk widget.
.\"
.\" .OP cmdName dbName dbClass
.\"	Start of description of a specific option.  cmdName gives the
.\"	option's name as specified in the class command, dbName gives
.\"	the option's name in the option database, and dbClass gives
.\"	the option's class in the option database.
.\"
.\" .UL arg1 arg2
.\"	Print arg1 underlined, then print arg2 normally.
.\"
.\" .QW arg1 ?arg2?
.\"	Print arg1 in quotes, then arg2 normally (for trailing punctuation).
.\"
.\" .PQ arg1 ?arg2?
.\"	Print an open parenthesis, arg1 in quotes, then arg2 normally
.\"	(for trailing punctuation) and then a closing parenthesis.
.\"
.\"	# Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
.if t .wh -1.3i ^B
.nr ^l \n(.l
.ad b
.\"	# Start an argument description
.de AP
.ie !"\\$4"" .TP \\$4
.el \{\
.   ie !"\\$2"" .TP \\n()Cu
.   el          .TP 15
.\}
.ta \\n()Au \\n()Bu
.ie !"\\$3"" \{\
\&\\$1 \\fI\\$2\\fP (\\$3)
.\".b
.\}
.el \{\
.br
.ie !"\\$2"" \{\
\&\\$1	\\fI\\$2\\fP
.\}
.el \{\
\&\\fI\\$1\\fP
.\}
.\}
..
.\"	# define tabbing values for .AP
.de AS
.nr )A 10n
.if !"\\$1"" .nr )A \\w'\\$1'u+3n
.nr )B \\n()Au+15n
.\"
.if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
.nr )C \\n()Bu+\\w'(in/out)'u+2n
..
.AS Tcl_Interp Tcl_CreateInterp in/out
.\"	# BS - start boxed text
.\"	# ^y = starting y location
.\"	# ^b = 1
.de BS
.br
.mk ^y
.nr ^b 1u
.if n .nf
.if n .ti 0
.if n \l'\\n(.lu\(ul'
.if n .fi
..
.\"	# BE - end boxed text (draw box now)
.de BE
.nf
.ti 0
.mk ^t
.ie n \l'\\n(^lu\(ul'
.el \{\
.\"	Draw four-sided box normally, but don't draw top of
.\"	box if the box started on an earlier page.
.ie !\\n(^b-1 \{\
\h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
.\}
.el \}\
\h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
.\}
.\}
.fi
.br
.nr ^b 0
..
.\"	# VS - start vertical sidebar
.\"	# ^Y = starting y location
.\"	# ^v = 1 (for troff;  for nroff this doesn't matter)
.de VS
.if !"\\$2"" .br
.mk ^Y
.ie n 'mc \s12\(br\s0
.el .nr ^v 1u
..
.\"	# VE - end of vertical sidebar
.de VE
.ie n 'mc
.el \{\
.ev 2
.nf
.ti 0
.mk ^t
\h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n'
.sp -1
.fi
.ev
.\}
.nr ^v 0
..
.\"	# Special macro to handle page bottom:  finish off current
.\"	# box/sidebar if in box/sidebar mode, then invoked standard
.\"	# page bottom macro.
.de ^B
.ev 2
'ti 0
'nf
.mk ^t
.if \\n(^b \{\
.\"	Draw three-sided box if this is the box's first page,
.\"	draw two sides but no top otherwise.
.ie !\\n(^b-1 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
.el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
.\}
.if \\n(^v \{\
.nr ^x \\n(^tu+1v-\\n(^Yu
\kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c
.\}
.bp
'fi
.ev
.if \\n(^b \{\
.mk ^y
.nr ^b 2
.\}
.if \\n(^v \{\
.mk ^Y
.\}
..
.\"	# DS - begin display
.de DS
.RS
.nf
.sp
..
.\"	# DE - end display
.de DE
.fi
.RE
.sp
..
.\"	# SO - start of list of standard options
.de SO
'ie '\\$1'' .ds So \\fBoptions\\fR
'el .ds So \\fB\\$1\\fR
.SH "STANDARD OPTIONS"
.LP
.nf
.ta 5.5c 11c
.ft B
..
.\"	# SE - end of list of standard options
.de SE
.fi
.ft R
.LP
See the \\*(So manual entry for details on the standard options.
..
.\"	# OP - start of full description for a single option
.de OP
.LP
.nf
.ta 4c
Command-Line Name:	\\fB\\$1\\fR
Database Name:	\\fB\\$2\\fR
Database Class:	\\fB\\$3\\fR
.fi
.IP
..
.\"	# CS - begin code excerpt
.de CS
.RS
.nf
.ta .25i .5i .75i 1i
..
.\"	# CE - end code excerpt
.de CE
.fi
.RE
..
.\"	# UL - underline word
.de UL
\\$1\l'|0\(ul'\\$2
..
.\"	# QW - apply quotation marks to word
.de QW
.ie '\\*(lq'"' ``\\$1''\\$2
.\"" fix emacs highlighting
.el \\*(lq\\$1\\*(rq\\$2
..
.\"	# PQ - apply parens and quotation marks to word
.de PQ
.ie '\\*(lq'"' (``\\$1''\\$2)\\$3
.\"" fix emacs highlighting
.el (\\*(lq\\$1\\*(rq\\$2)\\$3
..
.\"	# QR - quoted range
.de QR
.ie '\\*(lq'"' ``\\$1''\\-``\\$2''\\$3
.\"" fix emacs highlighting
.el \\*(lq\\$1\\*(rq\\-\\*(lq\\$2\\*(rq\\$3
..
.\"	# MT - "empty" string
.de MT
.QW ""
..
.BS
.SH NAME
ldap \- LDAP client
.SH SYNOPSIS
package require \fBTcl 8\&.5 9\fR
.sp
package require \fBldap ?1\&.10\&.2?\fR
.sp
\fB::ldap::connect\fR \fIhost\fR ?\fIport\fR?
.sp
\fB::ldap::tlsoptions\fR \fBreset\fR
.sp
\fB::ldap::tlsoptions\fR ?\fIopt1\fR \fIval1\fR? ?\fIopt2\fR \fIval2\fR? \&.\&.\&.
.sp
\fB::ldap::secure_connect\fR \fIhost\fR ?\fIport\fR?
.sp
\fB::ldap::secure_connect\fR \fIhost\fR ?\fIport\fR? ?\fIverify_cert\fR? ?\fIsni_servername\fR?
.sp
\fB::ldap::disconnect\fR \fIhandle\fR
.sp
\fB::ldap::starttls\fR \fIhandle\fR
.sp
\fB::ldap::starttls\fR \fIhandle\fR ?\fIcafile\fR? ?\fIcertfile\fR? ?\fIkeyfile\fR? ?\fIverify_cert\fR? ?\fIsni_servername\fR?
.sp
\fB::ldap::bind\fR \fIhandle\fR ?\fIname\fR? ?\fIpassword\fR?
.sp
\fB::ldap::bindSASL\fR \fIhandle\fR ?\fIname\fR? ?\fIpassword\fR?
.sp
\fB::ldap::unbind\fR \fIhandle\fR
.sp
\fB::ldap::search\fR \fIhandle\fR \fIbaseObject\fR \fIfilterString\fR \fIattributes\fR \fIoptions\fR
.sp
\fB::ldap::searchInit\fR \fIhandle\fR \fIbaseObject\fR \fIfilterString\fR \fIattributes\fR \fIoptions\fR
.sp
\fB::ldap::searchNext\fR \fIhandle\fR
.sp
\fB::ldap::searchEnd\fR \fIhandle\fR
.sp
\fB::ldap::modify\fR \fIhandle\fR \fIdn\fR \fIattrValToReplace\fR ?\fIattrToDelete\fR? ?\fIattrValToAdd\fR?
.sp
\fB::ldap::modifyMulti\fR \fIhandle\fR \fIdn\fR \fIattrValToReplace\fR ?\fIattrValToDelete\fR? ?\fIattrValToAdd\fR?
.sp
\fB::ldap::add\fR \fIhandle\fR \fIdn\fR \fIattrValueTuples\fR
.sp
\fB::ldap::addMulti\fR \fIhandle\fR \fIdn\fR \fIattrValueTuples\fR
.sp
\fB::ldap::delete\fR \fIhandle\fR \fIdn\fR
.sp
\fB::ldap::modifyDN\fR \fIhandle\fR \fIdn\fR \fInewrdn\fR ?\fIdeleteOld\fR? ?\fInewSuperior\fR?
.sp
\fB::ldap::info\fR \fBip\fR \fIhandle\fR
.sp
\fB::ldap::info\fR \fBbound\fR \fIhandle\fR
.sp
\fB::ldap::info\fR \fBbounduser\fR \fIhandle\fR
.sp
\fB::ldap::info\fR \fBconnections\fR
.sp
\fB::ldap::info\fR \fBtls\fR \fIhandle\fR
.sp
\fB::ldap::info\fR \fBtlsstatus\fR \fIhandle\fR
.sp
\fB::ldap::info\fR \fBsaslmechanisms\fR \fIhandle\fR
.sp
\fB::ldap::info\fR \fBcontrol\fR \fIhandle\fR
.sp
\fB::ldap::info\fR \fBextensions\fR \fIextensions\fR
.sp
\fB::ldap::info\fR \fBwhoami\fR \fIhandle\fR
.sp
.BE
.SH DESCRIPTION
.PP
The \fBldap\fR package provides a Tcl-only client library
for the LDAPv3 protocol as specified in
RFC 4511 (\fIhttp://www\&.rfc-editor\&.org/rfc/rfc4511\&.txt\fR)\&.
It works by opening the standard (or secure) LDAP socket on the
server, and then providing a Tcl API to access the LDAP protocol
commands\&.  All server errors are returned as Tcl errors (thrown) which
must be caught with the Tcl \fBcatch\fR command\&.
.SH "TLS SECURITY CONSIDERATIONS"
.PP
This package uses the \fBTLS\fR package to handle the
security for \fBLDAPS\fR connections\&.
.PP
Policy decisions like the set of protocols to support and what
ciphers to use are not the responsibility of \fBTLS\fR, nor of
this package itself however\&.
Such decisions are the responsibility of whichever application is
using the package, and are likely influenced by the set of servers
the application will talk to as well\&.
.PP
For example, in light of the recent
\fIPOODLE attack\fR [http://googleonlinesecurity\&.blogspot\&.co\&.uk/2014/10/this-poodle-bites-exploiting-ssl-30\&.html] discovered by Google many servers will disable support
for the SSLv3 protocol\&.
To handle this change the applications using \fBTLS\fR must be
patched, and not this package, nor \fBTLS\fR itself\&.
Such a patch may be as simple as generally activating \fBtls1\fR
support, as shown in the example below\&.
.CS


    ldap::tlsoptions -tls1 1 -ssl2 0 -ssl3 0 ;# forcibly activate support for the TLS1 protocol

    \&.\&.\&. your own application code \&.\&.\&.

.CE
.SH COMMANDS
.TP
\fB::ldap::connect\fR \fIhost\fR ?\fIport\fR?
Opens a LDAPv3 connection to the specified \fIhost\fR, at the given
\fIport\fR, and returns a token for the connection\&. This token is the
\fIhandle\fR argument for all other commands\&. If no \fIport\fR is
specified it will default to \fB389\fR\&.
.sp
The command blocks until the connection has been established, or
establishment definitely failed\&.
.TP
\fB::ldap::tlsoptions\fR \fBreset\fR
This command resets TLS options to default values\&. It returns the
set of options\&.
Using this command is incompatible with the obsolete
form of \fB::ldap::secure_connect\fR and \fB::ldap_starttls\fR\&.
.TP
\fB::ldap::tlsoptions\fR ?\fIopt1\fR \fIval1\fR? ?\fIopt2\fR \fIval2\fR? \&.\&.\&.
This commands adds one or more options to some value, and may be used
more than one time in order to add options in several steps\&.  A complete
description of options may be found in the \fBtls\fR package
documentation\&. Valid options and values are:
.RS
.TP
\fB-cadir\fR directory
Provide the directory containing the CA certificates\&.
No default\&.
.TP
\fB-cafile\fR file
Provide the CA file\&.
No default\&.
.TP
\fB-cipher\fR string
Provide the cipher suites to use\&.
No default\&.
.TP
\fB-dhparams\fR file
Provide a Diffie-Hellman parameters file\&.
No default\&.
.TP
\fB-request\fR boolean
Request a certificate from peer during SSL handshake\&.
Default: true\&.
.TP
\fB-require\fR boolean
Require a valid certificate from peer during SSL handshake\&. If this is
set to true then -request must also be set to true\&.
Default: false
.TP
\fB-servername\fR host
Only available if the OpenSSL library the TLS package is linked against
supports the TLS hostname extension for 'Server Name Indication'
(SNI)\&. Use to name the logical host we are talking to and expecting a
certificate for\&.
No default\&.
.TP
\fB-ssl2\fR bool
Enable use of SSL v2\&.
Default: false
.TP
\fB-ssl3\fR bool
Enable use of SSL v3\&.
Default: false
.TP
\fB-tls1\fR bool
Enable use of TLS v1
Default: true
.TP
\fB-tls1\&.1\fR bool
Enable use of TLS v1\&.1
Default: true
.TP
\fB-tls1\&.2\fR bool
Enable use of TLS v1\&.2
Default: true
.RE
.sp
This command returns the current set of TLS options and values\&.
In particular, one may use this command without any arguments to get
the current set of options\&.
.sp
Using this command is incompatible with the obsolete
form of \fB::ldap::secure_connect\fR and \fB::ldap_starttls\fR
(see below)\&.
.TP
\fB::ldap::secure_connect\fR \fIhost\fR ?\fIport\fR?
Like \fB::ldap::connect\fR, except that the created connection is
secured by SSL\&. The port defaults to \fB636\fR\&.  This command
depends on the availability of the package \fBTLS\fR, which is a
SSL binding for Tcl\&. If \fBTLS\fR is not available, then this
command will fail\&.
.sp
TLS options are specified with \fB::ldap::tlsoptions\fR\&.
.sp
The command blocks until the connection has been established, or
establishment definitely failed\&.
.TP
\fB::ldap::secure_connect\fR \fIhost\fR ?\fIport\fR? ?\fIverify_cert\fR? ?\fIsni_servername\fR?
Note: this form of the command is deprecated, since TLS options had
to be specified with a combination of parameters to this command
(\fIverify_cert\fR and \fIsni_servername\fR) and arguments to \fB::tls::init\fR
(from package \fBtls\fR) for example to setup defaults for trusted
certificates\&. Prefer the above form (without the \fIverify_cert\fR and
\fIsni_servername\fR parameters) and set TLS options with
\fB::ldap::tlsoptions\fR\&.
.sp
If \fIverify_cert\fR is set to 1, the default, this checks the server certificate against
the known hosts\&. If \fIsni_servername\fR is set, the given hostname is used as the
hostname for Server Name Indication in the TLS handshake\&.
.sp
Use \fB::tls::init\fR to setup defaults for trusted certificates\&.
.sp
TLS supports different protocol levels\&. In common use are the versions 1\&.0, 1\&.1 and 1\&.2\&.
By default all those versions are offered\&. If you need to modify the acceptable
protocols, you can change the ::ldap::tlsProtocols list (deprecated)\&.
.TP
\fB::ldap::disconnect\fR \fIhandle\fR
Closes the ldap connection refered to by the token
\fIhandle\fR\&. Returns the empty string as its result\&.
.TP
\fB::ldap::starttls\fR \fIhandle\fR
Start TLS negotiation on the connection denoted by \fIhandle\fR,
with TLS parameters set with \fB::ldap::tlsoptions\fR\&.
.TP
\fB::ldap::starttls\fR \fIhandle\fR ?\fIcafile\fR? ?\fIcertfile\fR? ?\fIkeyfile\fR? ?\fIverify_cert\fR? ?\fIsni_servername\fR?
Note: this form of the command is deprecated, since TLS options had
to be specified with a combination of parameters to this command
(\fIcafile\fR, \fIcertfile\fR, \fIkeyfile\fR, \fIverify_cert\fR
and \fIsni_servername\fR) and arguments to \fB::tls::init\fR
(from package \fBtls\fR)\&.
Prefer the above form (without specific TLS arguments)
and set TLS options with \fB::ldap::tlsoptions\fR\&.
.sp
Start TLS negotiation on the connection denoted by \fIhandle\fR\&.
You need to set at least the \fIcafile\fR argument to a file with trusted certificates, if \fIverify_cert\fR is 1, which is the default\&.
The \fIsni_servername\fR can be used to signal a different hostname during the TLS handshake\&.
The announced protocols are determined in the same way as \fB::ldap::secure_connect\fR\&.
You can specify a TLS client certificate with the \fIcertfile\fR and \fIkeyfile\fR options\&.
.TP
\fB::ldap::bind\fR \fIhandle\fR ?\fIname\fR? ?\fIpassword\fR?
This command authenticates the ldap connection refered to by the token
in \fIhandle\fR, with a user name and associated password\&. It blocks
until a response from the ldap server arrives\&. Its result is the empty
string\&.
Both \fIname\fR and \fIpasswd\fR default to the empty string if they
are not specified\&.
By leaving out \fIname\fR and \fIpasswd\fR you can make an anonymous bind to
the ldap server\&.
You can issue \fB::ldap::bind\fR again to bind with different credentials\&.
.TP
\fB::ldap::bindSASL\fR \fIhandle\fR ?\fIname\fR? ?\fIpassword\fR?
This command uses SASL authentication mechanisms to do a multistage bind\&.
Its otherwise identical to the standard \fB::ldap::bind\fR\&.
This feature is currently experimental and subject to change\&. See the documentation
for the \fBSASL\fR and the "\fISASL\&.txt\fR" in the tcllib CVS repository for
details how to setup and use SASL with openldap\&.
.TP
\fB::ldap::unbind\fR \fIhandle\fR
This command asks the ldap server to release the last bind done for
the connection refered to by the token in \fIhandle\fR\&.
The \fIhandle\fR is invalid after the unbind, as the server closes the connection\&.
So this is effectivly just a more polite disconnect operation\&.
.TP
\fB::ldap::search\fR \fIhandle\fR \fIbaseObject\fR \fIfilterString\fR \fIattributes\fR \fIoptions\fR
This command performs a LDAP search below the \fIbaseObject\fR tree
using a complex LDAP search expression \fIfilterString\fR and returns
the specified \fIattributes\fR of all matching objects (DNs)\&. If the
list of \fIattributes\fR was empty all attributes are returned\&. The
command blocks until it has received all results\&.
The valid \fIoptions\fR are identical to the options listed for \fB::ldap::searchInit\fR\&.
.sp
An example of a search expression is
.sp
.CS


    set filterString "|(cn=Linus*)(sn=Torvalds*)"

.CE
.sp
The return value of the command is a list of nested dictionaries\&. The
first level keys are object identifiers (DNs), second levels keys are
attribute names\&. In other words, it is in the form
.sp
.CS


    {dn1 {attr1 {val11 val12 \&.\&.\&.} attr2 {val21\&.\&.\&.} \&.\&.\&.}} {dn2 {a1 {v11 \&.\&.\&.} \&.\&.\&.}} \&.\&.\&.

.CE
.sp
.TP
\fB::ldap::searchInit\fR \fIhandle\fR \fIbaseObject\fR \fIfilterString\fR \fIattributes\fR \fIoptions\fR
This command initiates a LDAP search below the \fIbaseObject\fR tree
using a complex LDAP search expression \fIfilterString\fR\&.
The search gets the specified \fIattributes\fR of all matching objects (DNs)\&.
The command itself just starts the search, to retrieve the actual results, use
\fB::ldap::searchNext\fR\&.
A search can be terminated at any time by
\fB::ldap::searchEnd\fR\&. This informs the server that no further results should be sent by sending and ABANDON message
and cleans up the internal state of the search\&.
Only one \fB::ldap::search\fR can be active at a given time, this
includes the introspection commands \fB::ldap::info saslmechanisms\fR, \fBldap::info control\fR and
\fBldap::info extensions\fR, which invoke a search internally\&.
Error responses from the server due to wrong arguments or similar things are returned
with the first \fB::ldap::searchNext\fR call and should be checked and dealed with there\&.
If the list of requested \fIattributes\fR is empty all attributes will be returned\&.
The parameter \fIoptions\fR specifies the options to be used in the search,
and has the following format:
.sp
.CS


    {-option1 value1 -option2 value2 \&.\&.\&. }

.CE
.sp
Following options are available:
.RS
.TP
\fB-scope\fR base one sub
Control the scope of the search to be one of \fBbase\fR, \fBone\fR, or \fBsub\fR,  to  specify  a  base
object,  one-level or  subtree  search\&.   The  default is \fBsub\fR\&.
.TP
\fB-derefaliases\fR never search find always
Control how aliases dereferencing is done\&.  Should be one of \fBnever\fR, \fBalways\fR, \fBsearch\fR,  or  \fBfind\fR  to
specify that aliases are never dereferenced, always dereferenced, dereferenced when searching, or
dereferenced only when locating the base object for the search\&.
The default is to never dereference aliases\&.
.TP
\fB-sizelimit\fR num
Determines the maximum number of entries to return in a search\&. If specified as
0 no limit is enforced\&. The server may enforce a configuration dependent sizelimit,
which may be lower than the one given by this option\&. The default is 0, no limit\&.
.TP
\fB-timelimit\fR seconds
Asks the server to use a timelimit of \fIseconds\fR for the search\&. Zero means no
limit\&. The default is 0, no limit\&.
.TP
\fB-attrsonly\fR boolean
If set to 1 only the attribute names but not the values will be present in the search result\&.
The default is to retrieve attribute names and values\&.
.TP
\fB-referencevar\fR varname
If set the search result reference LDAPURIs, if any, are returned in the given variable\&.
The caller can than decide to follow those references and query other LDAP servers for
further results\&.
.RE
.sp
.TP
\fB::ldap::searchNext\fR \fIhandle\fR
This command returns the next entry from a LDAP search initiated
by \fB::ldap::searchInit\fR\&. It returns only after a new result is received
or when no further results are available, but takes care to keep
the event loop alive\&.
The returned entry is a list with
two elements: the first is the DN of the entry, the second is the
list of attributes and values, under the format:
.sp
.CS


    dn {attr1 {val11 val12 \&.\&.\&.} attr2 {val21\&.\&.\&.} \&.\&.\&.}

.CE
.sp
The \fB::ldap::searchNext\fR command returns an empty list at the
end of the search\&.
.sp
.TP
\fB::ldap::searchEnd\fR \fIhandle\fR
This command terminates a LDAP search initiated
by \fB::ldap::searchInit\fR\&. It also cleans up
the internal state so a new search can be initiated\&.
If the client has not yet received all results, the client
sends an ABANDON message to inform the server that no
further results for the previous search should to be sent\&.
.sp
.TP
\fB::ldap::modify\fR \fIhandle\fR \fIdn\fR \fIattrValToReplace\fR ?\fIattrToDelete\fR? ?\fIattrValToAdd\fR?
This command modifies the object \fIdn\fR on the ldap server we are
connected to via \fIhandle\fR\&. It replaces attributes with new values,
deletes attributes, and adds new attributes with new values\&.
All arguments are dictionaries mapping attribute names to values\&. The
optional arguments default to the empty dictionary, which means that
no attributes will be deleted nor added\&.
.RS
.TP
dictionary \fIattrValToReplace\fR (in)
No attributes will be changed if this argument is empty\&. The
dictionary contains the new attributes and their values\&. They
\fIreplace all\fR attributes known to the object\&.
.TP
dictionary \fIattrToDelete\fR (in)
No attributes will be deleted if this argument is empty\&. The
dictionary values are restrictions on the deletion\&. An attribute
listed here will be deleted if and only if its current value at the
server matches the value specified in the dictionary, or if the value
in the dictionary is the empty string\&.
.TP
dictionary \fIattrValToAdd\fR (in)
No attributes will be added if this argument is empty\&. The dictionary
values are the values for the new attributes\&.
.RE
.sp
The command blocks until all modifications have completed\&. Its result
is the empty string\&.
.TP
\fB::ldap::modifyMulti\fR \fIhandle\fR \fIdn\fR \fIattrValToReplace\fR ?\fIattrValToDelete\fR? ?\fIattrValToAdd\fR?
This command modifies the object \fIdn\fR on the ldap server we are
connected to via \fIhandle\fR\&. It replaces attributes with new values,
deletes attributes, and adds new attributes with new values\&.
All arguments are lists with the format:
.sp
.CS


    attr1 {val11 val12 \&.\&.\&.} attr2 {val21\&.\&.\&.} \&.\&.\&.

.CE
.sp
where each value list may be empty for deleting all attributes\&.
The optional arguments default to empty lists of attributes to
delete and to add\&.
.RS
.TP
list \fIattrValToReplace\fR (in)
No attributes will be changed if this argument is empty\&. The
dictionary contains the new attributes and their values\&. They
\fIreplace all\fR attributes known to the object\&.
.TP
list \fIattrValToDelete\fR (in)
No attributes will be deleted if this argument is empty\&. If no
value is specified, the whole set of values for an attribute
will be deleted\&.
.TP
list \fIattrValToAdd\fR (in)
No attributes will be added if this argument is empty\&.
.RE
.sp
The command blocks until all modifications have completed\&. Its result
is the empty string\&.
.TP
\fB::ldap::add\fR \fIhandle\fR \fIdn\fR \fIattrValueTuples\fR
This command creates a new object using the specified \fIdn\fR\&. The
attributes of the new object are set to the values in the list
\fIattrValueTuples\fR\&.
Multiple valuated attributes may be specified using multiple tuples\&.
The command blocks until the operation has completed\&. Its result
is the empty string\&.
.TP
\fB::ldap::addMulti\fR \fIhandle\fR \fIdn\fR \fIattrValueTuples\fR
This command is the preferred one to create
a new object using the specified \fIdn\fR\&. The
attributes of the new object are set to the values in the dictionary
\fIattrValueTuples\fR (which is keyed by the attribute names)\&.
Each tuple is a list containing multiple values\&.
The command blocks until the operation has completed\&. Its result
is the empty string\&.
.TP
\fB::ldap::delete\fR \fIhandle\fR \fIdn\fR
This command removes the object specified by \fIdn\fR, and all its
attributes from the server\&.
The command blocks until the operation has completed\&. Its result
is the empty string\&.
.TP
\fB::ldap::modifyDN\fR \fIhandle\fR \fIdn\fR \fInewrdn\fR ?\fIdeleteOld\fR? ?\fInewSuperior\fR?
This command moves or copies the object specified by \fIdn\fR
to a new location in the tree of object\&. This location is
specified by \fInewrdn\fR, a \fIrelative\fR designation,
or by \fInewrdn\fR and \fInewSuperior\fR, a \fIabsolute\fR designation\&.
The optional argument \fIdeleteOld\fR defaults to \fBtrue\fR,
i\&.e\&. a move operation\&. If \fIdeleteOld\fR is not set, then the
operation will create a copy of \fIdn\fR in the new location\&.
The optional argument \fInewSuperior\fR defaults an empty string,
meaning that the object must not be relocated in another branch of
the tree\&. If this argument is given, the argument \fIdeleteOld\fR
must be specified also\&.
The command blocks until the operation has completed\&. Its result
is the empty string\&.
.TP
\fB::ldap::info\fR \fBip\fR \fIhandle\fR
This command returns the IP address of the remote LDAP server the handle is connected to\&.
.TP
\fB::ldap::info\fR \fBbound\fR \fIhandle\fR
This command returns 1 if a handle has successfully completed a \fB::ldap::bind\fR\&.
If no bind was done or it failed, a 0 is returned\&.
.TP
\fB::ldap::info\fR \fBbounduser\fR \fIhandle\fR
This command returns the username used in the bind operation if a handle has successfully completed a \fB::ldap::bind\fR\&.
If no bound was done or it failed, an empty string is returned\&.
.TP
\fB::ldap::info\fR \fBconnections\fR
This command returns all currently existing ldap connection handles\&.
.TP
\fB::ldap::info\fR \fBtls\fR \fIhandle\fR
This command returns 1 if the ldap connection \fIhandle\fR used TLS/SSL for
connection via \fBldap::secure_connect\fR or completed \fBldap::starttls\fR, 0 otherwise\&.
.TP
\fB::ldap::info\fR \fBtlsstatus\fR \fIhandle\fR
This command returns the current security status of an TLS secured
channel\&. The result is a list of key-value pairs describing the connected
peer (see the \fBTLS\fR package documentation for the returned values)\&.
If the connection is not secured with TLS, an empty list is returned\&.
.TP
\fB::ldap::info\fR \fBsaslmechanisms\fR \fIhandle\fR
Return the supported SASL mechanisms advertised by the server\&. Only valid in a
bound state (anonymous or other)\&.
.TP
\fB::ldap::info\fR \fBcontrol\fR \fIhandle\fR
Return the supported controls advertised by the server as a list of OIDs\&. Only valid in a bound state\&.
This is currently experimental and subject to change\&.
.TP
\fB::ldap::info\fR \fBextensions\fR \fIextensions\fR
Returns the supported LDAP extensions as list of OIDs\&. Only valid in a bound state\&.
This is currently experimental and subject to change\&.
.TP
\fB::ldap::info\fR \fBwhoami\fR \fIhandle\fR
Returns authzId for the current connection\&. This implements the RFC 4532
protocol extension\&.
.PP
.PP
.SH EXAMPLES
.PP
A small example, extracted from the test application coming with this
code\&.
.PP
.CS


    package require ldap

    # Connect, bind, add a new object, modify it in various ways

    set handle [ldap::connect localhost 9009]

    set dn "cn=Manager, o=University of Michigan, c=US"
    set pw secret

    ldap::bind $handle $dn $pw

    set dn "cn=Test User,ou=People,o=University of Michigan,c=US"

    ldap::add $handle $dn {
	objectClass     OpenLDAPperson
	cn              {Test User}
	mail            test\&.user@google\&.com
	uid             testuid
	sn              User
	telephoneNumber +31415926535
	telephoneNumber +27182818285
    }

    set dn "cn=Another User,ou=People,o=University of Michigan,c=US"

    ldap::addMulti $handle $dn {
	objectClass     {OpenLDAPperson}
	cn              {{Anotther User}}
	mail            {test\&.user@google\&.com}
	uid             {testuid}
	sn              {User}
	telephoneNumber {+31415926535 +27182818285}
    }

    # Replace all attributes
    ldap::modify $handle $dn [list drink icetea uid JOLO]

    # Add some more
    ldap::modify $handle $dn {} {} [list drink water  drink orangeJuice pager "+1 313 555 7671"]

    # Delete
    ldap::modify $handle $dn {} [list drink water  pager ""]

    # Move
    ldap::modifyDN $handle $dn "cn=Tester"

    # Kill the test object, and shut the connection down\&.
    set dn "cn=Tester,ou=People,o=University of Michigan,c=US"
    ldap::delete $handle $dn

    ldap::unbind     $handle
    ldap::disconnect $handle

.CE
.PP
And another example, a simple query, and processing the
results\&.
.PP
.CS


    package require ldap
    set handle [ldap::connect ldap\&.acme\&.com 389]
    ldap::bind $handle
    set results [ldap::search $handle "o=acme,dc=com" "(uid=jdoe)" {}]
    foreach result $results {
	foreach {object attributes} $result break

	# The processing here is similar to what 'parray' does\&.
	# I\&.e\&. finding the longest attribute name and then
	# generating properly aligned output listing all attributes
	# and their values\&.

	set width 0
	set sortedAttribs {}
	foreach {type values} $attributes {
	    if {[string length $type] > $width} {
		set width [string length $type]
	    }
	    lappend sortedAttribs [list $type $values]
	}

	puts "object='$object'"

	foreach sortedAttrib  $sortedAttribs {
	    foreach {type values} $sortedAttrib break
	    foreach value $values {
		regsub -all "\\[\\x01-\\x1f\\]" $value ? value
		puts [format "  %-${width}s %s" $type $value]
	    }
	}
	puts ""
    }
    ldap::unbind $handle
    ldap::disconnect $handle

.CE
.SH "BUGS, IDEAS, FEEDBACK"
This document, and the package it describes, will undoubtedly contain
bugs and other problems\&.
Please report such in the category \fIldap\fR of the
\fITcllib Trackers\fR [http://core\&.tcl\&.tk/tcllib/reportlist]\&.
Please also report any ideas for enhancements you may have for either
package and/or documentation\&.
.PP
When proposing code changes, please provide \fIunified diffs\fR,
i\&.e the output of \fBdiff -u\fR\&.
.PP
Note further that \fIattachments\fR are strongly preferred over
inlined patches\&. Attachments can be made by going to the \fBEdit\fR
form of the ticket immediately after its creation, and then using the
left-most button in the secondary navigation bar\&.
.SH KEYWORDS
directory access, internet, ldap, ldap client, protocol, rfc 2251, rfc 4511, x\&.500
.SH CATEGORY
Networking
.SH COPYRIGHT
.nf
Copyright (c) 2004 Andreas Kupries <andreas_kupries@users\&.sourceforge\&.net>
Copyright (c) 2004 Jochen Loewer <loewerj@web\&.de>
Copyright (c) 2006 Michael Schlenker <mic42@users\&.sourceforge\&.net>

.fi